[packages/bzip2.git] / bzip2-libtoolizeautoconf.patch

diff -Nru bzip2-1.0.1/AUTHORS bzip2-1.0.1.new/AUTHORS
--- bzip2-1.0.1/AUTHORS Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/AUTHORS     Sat Jun 24 20:13:05 2000
@@ -0,0 +1 @@
+Julian Seward <jseward@acm.org>
diff -Nru bzip2-1.0.1/CHANGES bzip2-1.0.1.new/CHANGES
--- bzip2-1.0.1/CHANGES Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/CHANGES     Thu Jan  1 01:00:00 1970
@@ -1,167 +0,0 @@
-
-
-0.9.0
-~~~~~
-First version.
-
-
-0.9.0a
-~~~~~~
-Removed 'ranlib' from Makefile, since most modern Unix-es 
-don't need it, or even know about it.
-
-
-0.9.0b
-~~~~~~
-Fixed a problem with error reporting in bzip2.c.  This does not effect
-the library in any way.  Problem is: versions 0.9.0 and 0.9.0a (of the
-program proper) compress and decompress correctly, but give misleading
-error messages (internal panics) when an I/O error occurs, instead of
-reporting the problem correctly.  This shouldn't give any data loss
-(as far as I can see), but is confusing.
-
-Made the inline declarations disappear for non-GCC compilers.
-
-
-0.9.0c
-~~~~~~
-Fixed some problems in the library pertaining to some boundary cases.
-This makes the library behave more correctly in those situations.  The
-fixes apply only to features (calls and parameters) not used by
-bzip2.c, so the non-fixedness of them in previous versions has no
-effect on reliability of bzip2.c.
-
-In bzlib.c:
-   * made zero-length BZ_FLUSH work correctly in bzCompress().
-   * fixed bzWrite/bzRead to ignore zero-length requests.
-   * fixed bzread to correctly handle read requests after EOF.
-   * wrong parameter order in call to bzDecompressInit in
-     bzBuffToBuffDecompress.  Fixed.
-
-In compress.c:
-   * changed setting of nGroups in sendMTFValues() so as to 
-     do a bit better on small files.  This _does_ effect
-     bzip2.c.
-
-
-0.9.5a
-~~~~~~
-Major change: add a fallback sorting algorithm (blocksort.c)
-to give reasonable behaviour even for very repetitive inputs.
-Nuked --repetitive-best and --repetitive-fast since they are
-no longer useful.
-
-Minor changes: mostly a whole bunch of small changes/
-bugfixes in the driver (bzip2.c).  Changes pertaining to the
-user interface are:
-
-   allow decompression of symlink'd files to stdout
-   decompress/test files even without .bz2 extension
-   give more accurate error messages for I/O errors
-   when compressing/decompressing to stdout, don't catch control-C
-   read flags from BZIP2 and BZIP environment variables
-   decline to break hard links to a file unless forced with -f
-   allow -c flag even with no filenames
-   preserve file ownerships as far as possible
-   make -s -1 give the expected block size (100k)
-   add a flag -q --quiet to suppress nonessential warnings
-   stop decoding flags after --, so files beginning in - can be handled
-   resolved inconsistent naming: bzcat or bz2cat ?
-   bzip2 --help now returns 0
-
-Programming-level changes are:
-
-   fixed syntax error in GET_LL4 for Borland C++ 5.02
-   let bzBuffToBuffDecompress return BZ_DATA_ERROR{_MAGIC}
-   fix overshoot of mode-string end in bzopen_or_bzdopen
-   wrapped bzlib.h in #ifdef __cplusplus ... extern "C" { ... }
-   close file handles under all error conditions
-   added minor mods so it compiles with DJGPP out of the box
-   fixed Makefile so it doesn't give problems with BSD make
-   fix uninitialised memory reads in dlltest.c
-
-0.9.5b
-~~~~~~
-Open stdin/stdout in binary mode for DJGPP.
-
-0.9.5c
-~~~~~~
-Changed BZ_N_OVERSHOOT to be ... + 2 instead of ... + 1.  The + 1
-version could cause the sorted order to be wrong in some extremely
-obscure cases.  Also changed setting of quadrant in blocksort.c.
-
-0.9.5d
-~~~~~~
-The only functional change is to make bzlibVersion() in the library
-return the correct string.  This has no effect whatsoever on the
-functioning of the bzip2 program or library.  Added a couple of casts
-so the library compiles without warnings at level 3 in MS Visual
-Studio 6.0.  Included a Y2K statement in the file Y2K_INFO.  All other
-changes are minor documentation changes.
-
-1.0
-~~~
-Several minor bugfixes and enhancements:
-
-* Large file support.  The library uses 64-bit counters to
-  count the volume of data passing through it.  bzip2.c 
-  is now compiled with -D_FILE_OFFSET_BITS=64 to get large
-  file support from the C library.  -v correctly prints out
-  file sizes greater than 4 gigabytes.  All these changes have
-  been made without assuming a 64-bit platform or a C compiler
-  which supports 64-bit ints, so, except for the C library
-  aspect, they are fully portable.
-
-* Decompression robustness.  The library/program should be
-  robust to any corruption of compressed data, detecting and
-  handling _all_ corruption, instead of merely relying on
-  the CRCs.  What this means is that the program should 
-  never crash, given corrupted data, and the library should
-  always return BZ_DATA_ERROR.
-
-* Fixed an obscure race-condition bug only ever observed on
-  Solaris, in which, if you were very unlucky and issued
-  control-C at exactly the wrong time, both input and output
-  files would be deleted.
-
-* Don't run out of file handles on test/decompression when
-  large numbers of files have invalid magic numbers.
-
-* Avoid library namespace pollution.  Prefix all exported 
-  symbols with BZ2_.
-
-* Minor sorting enhancements from my DCC2000 paper.
-
-* Advance the version number to 1.0, so as to counteract the
-  (false-in-this-case) impression some people have that programs 
-  with version numbers less than 1.0 are in someway, experimental,
-  pre-release versions.
-
-* Create an initial Makefile-libbz2_so to build a shared library.
-  Yes, I know I should really use libtool et al ...
-
-* Make the program exit with 2 instead of 0 when decompression
-  fails due to a bad magic number (ie, an invalid bzip2 header).
-  Also exit with 1 (as the manual claims :-) whenever a diagnostic
-  message would have been printed AND the corresponding operation 
-  is aborted, for example
-     bzip2: Output file xx already exists.
-  When a diagnostic message is printed but the operation is not 
-  aborted, for example
-     bzip2: Can't guess original name for wurble -- using wurble.out
-  then the exit value 0 is returned, unless some other problem is
-  also detected.
-
-  I think it corresponds more closely to what the manual claims now.
-
-
-1.0.1
-~~~~~
-* Modified dlltest.c so it uses the new BZ2_ naming scheme.
-* Modified makefile-msc to fix minor build probs on Win2k.
-* Updated README.COMPILATION.PROBLEMS.
-
-There are no functionality changes or bug fixes relative to version
-1.0.0.  This is just a documentation update + a fix for minor Win32
-build problems.  For almost everyone, upgrading from 1.0.0 to 1.0.1 is
-utterly pointless.  Don't bother.
diff -Nru bzip2-1.0.1/COPYING bzip2-1.0.1.new/COPYING
--- bzip2-1.0.1/COPYING Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/COPYING     Sat Jun 24 20:13:05 2000
@@ -0,0 +1,39 @@
+
+This program, "bzip2" and associated library "libbzip2", are
+copyright (C) 1996-2000 Julian R Seward.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+2. The origin of this software must not be misrepresented; you must 
+   not claim that you wrote the original software.  If you use this 
+   software in a product, an acknowledgment in the product 
+   documentation would be appreciated but is not required.
+
+3. Altered source versions must be plainly marked as such, and must
+   not be misrepresented as being the original software.
+
+4. The name of the author may not be used to endorse or promote 
+   products derived from this software without specific prior written 
+   permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+Julian Seward, Cambridge, UK.
+jseward@acm.org
+bzip2/libbzip2 version 1.0 of 21 March 2000
+
diff -Nru bzip2-1.0.1/ChangeLog bzip2-1.0.1.new/ChangeLog
--- bzip2-1.0.1/ChangeLog       Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/ChangeLog   Sat Jun 24 20:13:05 2000
@@ -0,0 +1 @@
+
diff -Nru bzip2-1.0.1/INSTALL bzip2-1.0.1.new/INSTALL
--- bzip2-1.0.1/INSTALL Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/INSTALL     Sat Jun 24 20:13:06 2000
@@ -0,0 +1,182 @@
+Basic Installation
+==================
+
+   These are generic installation instructions.
+
+   The `configure' shell script attempts to guess correct values for
+various system-dependent variables used during compilation.  It uses
+those values to create a `Makefile' in each directory of the package.
+It may also create one or more `.h' files containing system-dependent
+definitions.  Finally, it creates a shell script `config.status' that
+you can run in the future to recreate the current configuration, a file
+`config.cache' that saves the results of its tests to speed up
+reconfiguring, and a file `config.log' containing compiler output
+(useful mainly for debugging `configure').
+
+   If you need to do unusual things to compile the package, please try
+to figure out how `configure' could check whether to do them, and mail
+diffs or instructions to the address given in the `README' so they can
+be considered for the next release.  If at some point `config.cache'
+contains results you don't want to keep, you may remove or edit it.
+
+   The file `configure.in' is used to create `configure' by a program
+called `autoconf'.  You only need `configure.in' if you want to change
+it or regenerate `configure' using a newer version of `autoconf'.
+
+The simplest way to compile this package is:
+
+  1. `cd' to the directory containing the package's source code and type
+     `./configure' to configure the package for your system.  If you're
+     using `csh' on an old version of System V, you might need to type
+     `sh ./configure' instead to prevent `csh' from trying to execute
+     `configure' itself.
+
+     Running `configure' takes awhile.  While running, it prints some
+     messages telling which features it is checking for.
+
+  2. Type `make' to compile the package.
+
+  3. Optionally, type `make check' to run any self-tests that come with
+     the package.
+
+  4. Type `make install' to install the programs and any data files and
+     documentation.
+
+  5. You can remove the program binaries and object files from the
+     source code directory by typing `make clean'.  To also remove the
+     files that `configure' created (so you can compile the package for
+     a different kind of computer), type `make distclean'.  There is
+     also a `make maintainer-clean' target, but that is intended mainly
+     for the package's developers.  If you use it, you may have to get
+     all sorts of other programs in order to regenerate files that came
+     with the distribution.
+
+Compilers and Options
+=====================
+
+   Some systems require unusual options for compilation or linking that
+the `configure' script does not know about.  You can give `configure'
+initial values for variables by setting them in the environment.  Using
+a Bourne-compatible shell, you can do that on the command line like
+this:
+     CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
+
+Or on systems that have the `env' program, you can do it like this:
+     env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
+
+Compiling For Multiple Architectures
+====================================
+
+   You can compile the package for more than one kind of computer at the
+same time, by placing the object files for each architecture in their
+own directory.  To do this, you must use a version of `make' that
+supports the `VPATH' variable, such as GNU `make'.  `cd' to the
+directory where you want the object files and executables to go and run
+the `configure' script.  `configure' automatically checks for the
+source code in the directory that `configure' is in and in `..'.
+
+   If you have to use a `make' that does not supports the `VPATH'
+variable, you have to compile the package for one architecture at a time
+in the source code directory.  After you have installed the package for
+one architecture, use `make distclean' before reconfiguring for another
+architecture.
+
+Installation Names
+==================
+
+   By default, `make install' will install the package's files in
+`/usr/local/bin', `/usr/local/man', etc.  You can specify an
+installation prefix other than `/usr/local' by giving `configure' the
+option `--prefix=PATH'.
+
+   You can specify separate installation prefixes for
+architecture-specific files and architecture-independent files.  If you
+give `configure' the option `--exec-prefix=PATH', the package will use
+PATH as the prefix for installing programs and libraries.
+Documentation and other data files will still use the regular prefix.
+
+   In addition, if you use an unusual directory layout you can give
+options like `--bindir=PATH' to specify different values for particular
+kinds of files.  Run `configure --help' for a list of the directories
+you can set and what kinds of files go in them.
+
+   If the package supports it, you can cause programs to be installed
+with an extra prefix or suffix on their names by giving `configure' the
+option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+
+Optional Features
+=================
+
+   Some packages pay attention to `--enable-FEATURE' options to
+`configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+is something like `gnu-as' or `x' (for the X Window System).  The
+`README' should mention any `--enable-' and `--with-' options that the
+package recognizes.
+
+   For packages that use the X Window System, `configure' can usually
+find the X include and library files automatically, but if it doesn't,
+you can use the `configure' options `--x-includes=DIR' and
+`--x-libraries=DIR' to specify their locations.
+
+Specifying the System Type
+==========================
+
+   There may be some features `configure' can not figure out
+automatically, but needs to determine by the type of host the package
+will run on.  Usually `configure' can figure that out, but if it prints
+a message saying it can not guess the host type, give it the
+`--host=TYPE' option.  TYPE can either be a short name for the system
+type, such as `sun4', or a canonical name with three fields:
+     CPU-COMPANY-SYSTEM
+
+See the file `config.sub' for the possible values of each field.  If
+`config.sub' isn't included in this package, then this package doesn't
+need to know the host type.
+
+   If you are building compiler tools for cross-compiling, you can also
+use the `--target=TYPE' option to select the type of system they will
+produce code for and the `--build=TYPE' option to select the type of
+system on which you are compiling the package.
+
+Sharing Defaults
+================
+
+   If you want to set default values for `configure' scripts to share,
+you can create a site shell script called `config.site' that gives
+default values for variables like `CC', `cache_file', and `prefix'.
+`configure' looks for `PREFIX/share/config.site' if it exists, then
+`PREFIX/etc/config.site' if it exists.  Or, you can set the
+`CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all `configure' scripts look for a site script.
+
+Operation Controls
+==================
+
+   `configure' recognizes the following options to control how it
+operates.
+
+`--cache-file=FILE'
+     Use and save the results of the tests in FILE instead of
+     `./config.cache'.  Set FILE to `/dev/null' to disable caching, for
+     debugging `configure'.
+
+`--help'
+     Print a summary of the options to `configure', and exit.
+
+`--quiet'
+`--silent'
+`-q'
+     Do not print messages saying which checks are being made.  To
+     suppress all normal output, redirect it to `/dev/null' (any error
+     messages will still be shown).
+
+`--srcdir=DIR'
+     Look for the package's source code in directory DIR.  Usually
+     `configure' can determine that directory automatically.
+
+`--version'
+     Print the version of Autoconf used to generate the `configure'
+     script, and exit.
+
+`configure' also accepts some other, not widely useful, options.
diff -Nru bzip2-1.0.1/LICENSE bzip2-1.0.1.new/LICENSE
--- bzip2-1.0.1/LICENSE Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/LICENSE     Thu Jan  1 01:00:00 1970
@@ -1,39 +0,0 @@
-
-This program, "bzip2" and associated library "libbzip2", are
-copyright (C) 1996-2000 Julian R Seward.  All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-
-2. The origin of this software must not be misrepresented; you must 
-   not claim that you wrote the original software.  If you use this 
-   software in a product, an acknowledgment in the product 
-   documentation would be appreciated but is not required.
-
-3. Altered source versions must be plainly marked as such, and must
-   not be misrepresented as being the original software.
-
-4. The name of the author may not be used to endorse or promote 
-   products derived from this software without specific prior written 
-   permission.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
-OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
-DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
-GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-Julian Seward, Cambridge, UK.
-jseward@acm.org
-bzip2/libbzip2 version 1.0 of 21 March 2000
-
diff -Nru bzip2-1.0.1/Makefile-libbz2_so bzip2-1.0.1.new/Makefile-libbz2_so
--- bzip2-1.0.1/Makefile-libbz2_so      Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/Makefile-libbz2_so  Thu Jan  1 01:00:00 1970
@@ -1,43 +0,0 @@
-
-# This Makefile builds a shared version of the library, 
-# libbz2.so.1.0.1, with soname libbz2.so.1.0,
-# at least on x86-Linux (RedHat 5.2), 
-# with gcc-2.7.2.3.  Please see the README file for some 
-# important info about building the library like this.
-
-SHELL=/bin/sh
-CC=gcc
-BIGFILES=-D_FILE_OFFSET_BITS=64
-CFLAGS=-fpic -fPIC -Wall -Winline -O2 -fomit-frame-pointer -fno-strength-reduce $(BIGFILES)
-
-OBJS= blocksort.o  \
-      huffman.o    \
-      crctable.o   \
-      randtable.o  \
-      compress.o   \
-      decompress.o \
-      bzlib.o
-
-all: $(OBJS)
-       $(CC) -shared -Wl,-soname -Wl,libbz2.so.1.0 -o libbz2.so.1.0.1 $(OBJS)
-       $(CC) $(CFLAGS) -o bzip2-shared bzip2.c libbz2.so.1.0.1
-       rm -f libbz2.so.1.0
-       ln -s libbz2.so.1.0.1 libbz2.so.1.0
-
-clean: 
-       rm -f $(OBJS) bzip2.o libbz2.so.1.0.1 libbz2.so.1.0 bzip2-shared
-
-blocksort.o: blocksort.c
-       $(CC) $(CFLAGS) -c blocksort.c
-huffman.o: huffman.c
-       $(CC) $(CFLAGS) -c huffman.c
-crctable.o: crctable.c
-       $(CC) $(CFLAGS) -c crctable.c
-randtable.o: randtable.c
-       $(CC) $(CFLAGS) -c randtable.c
-compress.o: compress.c
-       $(CC) $(CFLAGS) -c compress.c
-decompress.o: decompress.c
-       $(CC) $(CFLAGS) -c decompress.c
-bzlib.o: bzlib.c
-       $(CC) $(CFLAGS) -c bzlib.c
diff -Nru bzip2-1.0.1/Makefile.am bzip2-1.0.1.new/Makefile.am
--- bzip2-1.0.1/Makefile.am     Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/Makefile.am Sat Jun 24 20:17:47 2000
@@ -0,0 +1,31 @@
+SUBDIRS                = doc
+
+bin_PROGRAMS   = bzip2 bzip2recover 
+bzip2_SOURCES  = bzip2.c
+
+bzip2_LDADD            =  libbz2.la
+bzip2recover_SOURCES   = bzip2recover.c
+lib_LTLIBRARIES                = libbz2.la
+libbz2_la_SOURCES = \
+       blocksort.c \
+       huffman.c \
+       crctable.c \
+       randtable.c \
+       compress.c \
+       decompress.c \
+       bzlib.c \
+       bzlib.h \
+       bzlib_private.h
+
+libbz2_la_LDFLAGS      = -version-info 1:0:0
+include_HEADERS                = bzlib.h bzlib_private.h
+
+bzip2SCRIPTS           = bzless
+
+EXTRA_DIST = README README.COMPILATION.PROBLEMS \
+       Y2K_INFO libbz2.def libbz2.dsp \
+       sample1.bz2 sample1.ref sample2.bz2 sample2.ref sample3.bz2 sample3.ref
+
+install-exec-hook:
+       $(LN_S) -f bzip2 $(DESTDIR)$(bindir)/bunzip2
+       $(LN_S) -f bzip2 $(DESTDIR)$(bindir)/bzcat
diff -Nru bzip2-1.0.1/NEWS bzip2-1.0.1.new/NEWS
--- bzip2-1.0.1/NEWS    Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/NEWS        Sat Jun 24 20:13:06 2000
@@ -0,0 +1,12 @@
+
+
+1.0.1
+~~~~~
+* Modified dlltest.c so it uses the new BZ2_ naming scheme.
+* Modified makefile-msc to fix minor build probs on Win2k.
+* Updated README.COMPILATION.PROBLEMS.
+
+There are no functionality changes or bug fixes relative to version
+1.0.0.  This is just a documentation update + a fix for minor Win32
+build problems.  For almost everyone, upgrading from 1.0.0 to 1.0.1 is
+utterly pointless.  Don't bother.
diff -Nru bzip2-1.0.1/acinclude.m4 bzip2-1.0.1.new/acinclude.m4
--- bzip2-1.0.1/acinclude.m4    Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/acinclude.m4        Sat Jun 24 20:13:06 2000
@@ -0,0 +1,129 @@
+#serial 7
+
+dnl By default, many hosts won't let programs access large files;
+dnl one must use special compiler options to get large-file access to work.
+dnl For more details about this brain damage please see:
+dnl http://www.sas.com/standards/large.file/x_open.20Mar96.html
+
+dnl Written by Paul Eggert <eggert@twinsun.com>.
+
+dnl Internal subroutine of AC_SYS_LARGEFILE.
+dnl AC_SYS_LARGEFILE_FLAGS(FLAGSNAME)
+AC_DEFUN(AC_SYS_LARGEFILE_FLAGS,
+  [AC_CACHE_CHECK([for $1 value to request large file support],
+     ac_cv_sys_largefile_$1,
+     [if ($GETCONF LFS_$1) >conftest.1 2>conftest.2 && test ! -s conftest.2
+      then
+        ac_cv_sys_largefile_$1=`cat conftest.1`
+      else
+       ac_cv_sys_largefile_$1=no
+       ifelse($1, CFLAGS,
+         [case "$host_os" in
+          # HP-UX 10.20 requires -D__STDC_EXT__ with gcc 2.95.1.
+changequote(, )dnl
+          hpux10.[2-9][0-9]* | hpux1[1-9]* | hpux[2-9][0-9]*)
+changequote([, ])dnl
+            if test "$GCC" = yes; then
+              ac_cv_sys_largefile_CFLAGS=-D__STDC_EXT__
+            fi
+            ;;
+          # IRIX 6.2 and later require cc -n32.
+changequote(, )dnl
+          irix6.[2-9]* | irix6.1[0-9]* | irix[7-9].* | irix[1-9][0-9]*)
+changequote([, ])dnl
+            if test "$GCC" != yes; then
+              ac_cv_sys_largefile_CFLAGS=-n32
+            fi
+          esac
+          if test "$ac_cv_sys_largefile_CFLAGS" != no; then
+            ac_save_CC="$CC"
+            CC="$CC $ac_cv_sys_largefile_CFLAGS"
+            AC_TRY_LINK(, , , ac_cv_sys_largefile_CFLAGS=no)
+            CC="$ac_save_CC"
+          fi])
+      fi
+      rm -f conftest*])])
+
+dnl Internal subroutine of AC_SYS_LARGEFILE.
+dnl AC_SYS_LARGEFILE_SPACE_APPEND(VAR, VAL)
+AC_DEFUN(AC_SYS_LARGEFILE_SPACE_APPEND,
+  [case $2 in
+   no) ;;
+   ?*)
+     case "[$]$1" in
+     '') $1=$2 ;;
+     *) $1=[$]$1' '$2 ;;
+     esac ;;
+   esac])
+
+dnl Internal subroutine of AC_SYS_LARGEFILE.
+dnl AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, CACHE-VAR, COMMENT, CODE-TO-SET-DEFAULT)
+AC_DEFUN(AC_SYS_LARGEFILE_MACRO_VALUE,
+  [AC_CACHE_CHECK([for $1], $2,
+     [$2=no
+changequote(, )dnl
+      $4
+      for ac_flag in $ac_cv_sys_largefile_CFLAGS no; do
+       case "$ac_flag" in
+       -D$1)
+         $2=1 ;;
+       -D$1=*)
+         $2=`expr " $ac_flag" : '[^=]*=\(.*\)'` ;;
+       esac
+      done
+changequote([, ])dnl
+      ])
+   if test "[$]$2" != no; then
+     AC_DEFINE_UNQUOTED([$1], [$]$2, [$3])
+   fi])
+
+AC_DEFUN(AC_SYS_LARGEFILE,
+  [AC_REQUIRE([AC_CANONICAL_HOST])
+   AC_ARG_ENABLE(largefile,
+     [  --disable-largefile     omit support for large files])
+   if test "$enable_largefile" != no; then
+     AC_CHECK_TOOL(GETCONF, getconf)
+     AC_SYS_LARGEFILE_FLAGS(CFLAGS)
+     AC_SYS_LARGEFILE_FLAGS(LDFLAGS)
+     AC_SYS_LARGEFILE_FLAGS(LIBS)
+
+     for ac_flag in $ac_cv_sys_largefile_CFLAGS no; do
+       case "$ac_flag" in
+       no) ;;
+       -D_FILE_OFFSET_BITS=*) ;;
+       -D_LARGEFILE_SOURCE | -D_LARGEFILE_SOURCE=*) ;;
+       -D_LARGE_FILES | -D_LARGE_FILES=*) ;;
+       -D?* | -I?*)
+        AC_SYS_LARGEFILE_SPACE_APPEND(CPPFLAGS, "$ac_flag") ;;
+       *)
+        AC_SYS_LARGEFILE_SPACE_APPEND(CFLAGS, "$ac_flag") ;;
+       esac
+     done
+     AC_SYS_LARGEFILE_SPACE_APPEND(LDFLAGS, "$ac_cv_sys_largefile_LDFLAGS")
+     AC_SYS_LARGEFILE_SPACE_APPEND(LIBS, "$ac_cv_sys_largefile_LIBS")
+     AC_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS,
+       ac_cv_sys_file_offset_bits,
+       [Number of bits in a file offset, on hosts where this is settable.],
+       [case "$host_os" in
+       # HP-UX 10.20 and later
+       hpux10.[2-9][0-9]* | hpux1[1-9]* | hpux[2-9][0-9]*)
+         ac_cv_sys_file_offset_bits=64 ;;
+       esac])
+     AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE,
+       ac_cv_sys_largefile_source,
+       [Define to make fseeko etc. visible, on some hosts.],
+       [case "$host_os" in
+       # HP-UX 10.20 and later
+       hpux10.[2-9][0-9]* | hpux1[1-9]* | hpux[2-9][0-9]*)
+         ac_cv_sys_largefile_source=1 ;;
+       esac])
+     AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES,
+       ac_cv_sys_large_files,
+       [Define for large files, on AIX-style hosts.],
+       [case "$host_os" in
+       # AIX 4.2 and later
+       aix4.[2-9]* | aix4.1[0-9]* | aix[5-9].* | aix[1-9][0-9]*)
+         ac_cv_sys_large_files=1 ;;
+       esac])
+   fi
+  ])
diff -Nru bzip2-1.0.1/bzip2.1 bzip2-1.0.1.new/bzip2.1
--- bzip2-1.0.1/bzip2.1 Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/bzip2.1     Thu Jan  1 01:00:00 1970
@@ -1,439 +0,0 @@
-.PU
-.TH bzip2 1
-.SH NAME
-bzip2, bunzip2 \- a block-sorting file compressor, v1.0
-.br
-bzcat \- decompresses files to stdout
-.br
-bzip2recover \- recovers data from damaged bzip2 files
-
-.SH SYNOPSIS
-.ll +8
-.B bzip2
-.RB [ " \-cdfkqstvzVL123456789 " ]
-[
-.I "filenames \&..."
-]
-.ll -8
-.br
-.B bunzip2
-.RB [ " \-fkvsVL " ]
-[ 
-.I "filenames \&..."
-]
-.br
-.B bzcat
-.RB [ " \-s " ]
-[ 
-.I "filenames \&..."
-]
-.br
-.B bzip2recover
-.I "filename"
-
-.SH DESCRIPTION
-.I bzip2
-compresses files using the Burrows-Wheeler block sorting
-text compression algorithm, and Huffman coding.  Compression is
-generally considerably better than that achieved by more conventional
-LZ77/LZ78-based compressors, and approaches the performance of the PPM
-family of statistical compressors.
-
-The command-line options are deliberately very similar to 
-those of 
-.I GNU gzip, 
-but they are not identical.
-
-.I bzip2
-expects a list of file names to accompany the
-command-line flags.  Each file is replaced by a compressed version of
-itself, with the name "original_name.bz2".  
-Each compressed file
-has the same modification date, permissions, and, when possible,
-ownership as the corresponding original, so that these properties can
-be correctly restored at decompression time.  File name handling is
-naive in the sense that there is no mechanism for preserving original
-file names, permissions, ownerships or dates in filesystems which lack
-these concepts, or have serious file name length restrictions, such as
-MS-DOS.
-
-.I bzip2
-and
-.I bunzip2
-will by default not overwrite existing
-files.  If you want this to happen, specify the \-f flag.
-
-If no file names are specified,
-.I bzip2
-compresses from standard
-input to standard output.  In this case,
-.I bzip2
-will decline to
-write compressed output to a terminal, as this would be entirely
-incomprehensible and therefore pointless.
-
-.I bunzip2
-(or
-.I bzip2 \-d) 
-decompresses all
-specified files.  Files which were not created by 
-.I bzip2
-will be detected and ignored, and a warning issued.  
-.I bzip2
-attempts to guess the filename for the decompressed file 
-from that of the compressed file as follows:
-
-       filename.bz2    becomes   filename
-       filename.bz     becomes   filename
-       filename.tbz2   becomes   filename.tar
-       filename.tbz    becomes   filename.tar
-       anyothername    becomes   anyothername.out
-
-If the file does not end in one of the recognised endings, 
-.I .bz2, 
-.I .bz, 
-.I .tbz2
-or
-.I .tbz, 
-.I bzip2 
-complains that it cannot
-guess the name of the original file, and uses the original name
-with
-.I .out
-appended.
-
-As with compression, supplying no
-filenames causes decompression from 
-standard input to standard output.
-
-.I bunzip2 
-will correctly decompress a file which is the
-concatenation of two or more compressed files.  The result is the
-concatenation of the corresponding uncompressed files.  Integrity
-testing (\-t) 
-of concatenated 
-compressed files is also supported.
-
-You can also compress or decompress files to the standard output by
-giving the \-c flag.  Multiple files may be compressed and
-decompressed like this.  The resulting outputs are fed sequentially to
-stdout.  Compression of multiple files 
-in this manner generates a stream
-containing multiple compressed file representations.  Such a stream
-can be decompressed correctly only by
-.I bzip2 
-version 0.9.0 or
-later.  Earlier versions of
-.I bzip2
-will stop after decompressing
-the first file in the stream.
-
-.I bzcat
-(or
-.I bzip2 -dc) 
-decompresses all specified files to
-the standard output.
-
-.I bzip2
-will read arguments from the environment variables
-.I BZIP2
-and
-.I BZIP,
-in that order, and will process them
-before any arguments read from the command line.  This gives a 
-convenient way to supply default arguments.
-
-Compression is always performed, even if the compressed 
-file is slightly
-larger than the original.  Files of less than about one hundred bytes
-tend to get larger, since the compression mechanism has a constant
-overhead in the region of 50 bytes.  Random data (including the output
-of most file compressors) is coded at about 8.05 bits per byte, giving
-an expansion of around 0.5%.
-
-As a self-check for your protection, 
-.I 
-bzip2
-uses 32-bit CRCs to
-make sure that the decompressed version of a file is identical to the
-original.  This guards against corruption of the compressed data, and
-against undetected bugs in
-.I bzip2
-(hopefully very unlikely).  The
-chances of data corruption going undetected is microscopic, about one
-chance in four billion for each file processed.  Be aware, though, that
-the check occurs upon decompression, so it can only tell you that
-something is wrong.  It can't help you 
-recover the original uncompressed
-data.  You can use 
-.I bzip2recover
-to try to recover data from
-damaged files.
-
-Return values: 0 for a normal exit, 1 for environmental problems (file
-not found, invalid flags, I/O errors, &c), 2 to indicate a corrupt
-compressed file, 3 for an internal consistency error (eg, bug) which
-caused
-.I bzip2
-to panic.
-
-.SH OPTIONS
-.TP
-.B \-c --stdout
-Compress or decompress to standard output.
-.TP
-.B \-d --decompress
-Force decompression.  
-.I bzip2, 
-.I bunzip2 
-and
-.I bzcat 
-are
-really the same program, and the decision about what actions to take is
-done on the basis of which name is used.  This flag overrides that
-mechanism, and forces 
-.I bzip2
-to decompress.
-.TP
-.B \-z --compress
-The complement to \-d: forces compression, regardless of the
-invokation name.
-.TP
-.B \-t --test
-Check integrity of the specified file(s), but don't decompress them.
-This really performs a trial decompression and throws away the result.
-.TP
-.B \-f --force
-Force overwrite of output files.  Normally,
-.I bzip2 
-will not overwrite
-existing output files.  Also forces 
-.I bzip2 
-to break hard links
-to files, which it otherwise wouldn't do.
-.TP
-.B \-k --keep
-Keep (don't delete) input files during compression
-or decompression.
-.TP
-.B \-s --small
-Reduce memory usage, for compression, decompression and testing.  Files
-are decompressed and tested using a modified algorithm which only
-requires 2.5 bytes per block byte.  This means any file can be
-decompressed in 2300k of memory, albeit at about half the normal speed.
-
-During compression, \-s selects a block size of 200k, which limits
-memory use to around the same figure, at the expense of your compression
-ratio.  In short, if your machine is low on memory (8 megabytes or
-less), use \-s for everything.  See MEMORY MANAGEMENT below.
-.TP
-.B \-q --quiet
-Suppress non-essential warning messages.  Messages pertaining to
-I/O errors and other critical events will not be suppressed.
-.TP
-.B \-v --verbose
-Verbose mode -- show the compression ratio for each file processed.
-Further \-v's increase the verbosity level, spewing out lots of
-information which is primarily of interest for diagnostic purposes.
-.TP
-.B \-L --license -V --version
-Display the software version, license terms and conditions.
-.TP
-.B \-1 to \-9
-Set the block size to 100 k, 200 k ..  900 k when compressing.  Has no
-effect when decompressing.  See MEMORY MANAGEMENT below.
-.TP
-.B \--
-Treats all subsequent arguments as file names, even if they start
-with a dash.  This is so you can handle files with names beginning
-with a dash, for example: bzip2 \-- \-myfilename.
-.TP
-.B \--repetitive-fast --repetitive-best
-These flags are redundant in versions 0.9.5 and above.  They provided
-some coarse control over the behaviour of the sorting algorithm in
-earlier versions, which was sometimes useful.  0.9.5 and above have an
-improved algorithm which renders these flags irrelevant.
-
-.SH MEMORY MANAGEMENT
-.I bzip2 
-compresses large files in blocks.  The block size affects
-both the compression ratio achieved, and the amount of memory needed for
-compression and decompression.  The flags \-1 through \-9
-specify the block size to be 100,000 bytes through 900,000 bytes (the
-default) respectively.  At decompression time, the block size used for
-compression is read from the header of the compressed file, and
-.I bunzip2
-then allocates itself just enough memory to decompress
-the file.  Since block sizes are stored in compressed files, it follows
-that the flags \-1 to \-9 are irrelevant to and so ignored
-during decompression.
-
-Compression and decompression requirements, 
-in bytes, can be estimated as:
-
-       Compression:   400k + ( 8 x block size )
-
-       Decompression: 100k + ( 4 x block size ), or
-                      100k + ( 2.5 x block size )
-
-Larger block sizes give rapidly diminishing marginal returns.  Most of
-the compression comes from the first two or three hundred k of block
-size, a fact worth bearing in mind when using
-.I bzip2
-on small machines.
-It is also important to appreciate that the decompression memory
-requirement is set at compression time by the choice of block size.
-
-For files compressed with the default 900k block size,
-.I bunzip2
-will require about 3700 kbytes to decompress.  To support decompression
-of any file on a 4 megabyte machine, 
-.I bunzip2
-has an option to
-decompress using approximately half this amount of memory, about 2300
-kbytes.  Decompression speed is also halved, so you should use this
-option only where necessary.  The relevant flag is -s.
-
-In general, try and use the largest block size memory constraints allow,
-since that maximises the compression achieved.  Compression and
-decompression speed are virtually unaffected by block size.
-
-Another significant point applies to files which fit in a single block
--- that means most files you'd encounter using a large block size.  The
-amount of real memory touched is proportional to the size of the file,
-since the file is smaller than a block.  For example, compressing a file
-20,000 bytes long with the flag -9 will cause the compressor to
-allocate around 7600k of memory, but only touch 400k + 20000 * 8 = 560
-kbytes of it.  Similarly, the decompressor will allocate 3700k but only
-touch 100k + 20000 * 4 = 180 kbytes.
-
-Here is a table which summarises the maximum memory usage for different
-block sizes.  Also recorded is the total compressed size for 14 files of
-the Calgary Text Compression Corpus totalling 3,141,622 bytes.  This
-column gives some feel for how compression varies with block size.
-These figures tend to understate the advantage of larger block sizes for
-larger files, since the Corpus is dominated by smaller files.
-
-           Compress   Decompress   Decompress   Corpus
-    Flag     usage      usage       -s usage     Size
-
-     -1      1200k       500k         350k      914704
-     -2      2000k       900k         600k      877703
-     -3      2800k      1300k         850k      860338
-     -4      3600k      1700k        1100k      846899
-     -5      4400k      2100k        1350k      845160
-     -6      5200k      2500k        1600k      838626
-     -7      6100k      2900k        1850k      834096
-     -8      6800k      3300k        2100k      828642
-     -9      7600k      3700k        2350k      828642
-
-.SH RECOVERING DATA FROM DAMAGED FILES
-.I bzip2
-compresses files in blocks, usually 900kbytes long.  Each
-block is handled independently.  If a media or transmission error causes
-a multi-block .bz2
-file to become damaged, it may be possible to
-recover data from the undamaged blocks in the file.
-
-The compressed representation of each block is delimited by a 48-bit
-pattern, which makes it possible to find the block boundaries with
-reasonable certainty.  Each block also carries its own 32-bit CRC, so
-damaged blocks can be distinguished from undamaged ones.
-
-.I bzip2recover
-is a simple program whose purpose is to search for
-blocks in .bz2 files, and write each block out into its own .bz2 
-file.  You can then use
-.I bzip2 
-\-t
-to test the
-integrity of the resulting files, and decompress those which are
-undamaged.
-
-.I bzip2recover
-takes a single argument, the name of the damaged file, 
-and writes a number of files "rec0001file.bz2",
-"rec0002file.bz2", etc, containing the  extracted  blocks.
-The  output  filenames  are  designed  so  that the use of
-wildcards in subsequent processing -- for example,  
-"bzip2 -dc  rec*file.bz2 > recovered_data" -- lists the files in
-the correct order.
-
-.I bzip2recover
-should be of most use dealing with large .bz2
-files,  as  these will contain many blocks.  It is clearly
-futile to use it on damaged single-block  files,  since  a
-damaged  block  cannot  be recovered.  If you wish to minimise 
-any potential data loss through media  or  transmission errors, 
-you might consider compressing with a smaller
-block size.
-
-.SH PERFORMANCE NOTES
-The sorting phase of compression gathers together similar strings in the
-file.  Because of this, files containing very long runs of repeated
-symbols, like "aabaabaabaab ..."  (repeated several hundred times) may
-compress more slowly than normal.  Versions 0.9.5 and above fare much
-better than previous versions in this respect.  The ratio between
-worst-case and average-case compression time is in the region of 10:1.
-For previous versions, this figure was more like 100:1.  You can use the
-\-vvvv option to monitor progress in great detail, if you want.
-
-Decompression speed is unaffected by these phenomena.
-
-.I bzip2
-usually allocates several megabytes of memory to operate
-in, and then charges all over it in a fairly random fashion.  This means
-that performance, both for compressing and decompressing, is largely
-determined by the speed at which your machine can service cache misses.
-Because of this, small changes to the code to reduce the miss rate have
-been observed to give disproportionately large performance improvements.
-I imagine 
-.I bzip2
-will perform best on machines with very large caches.
-
-.SH CAVEATS
-I/O error messages are not as helpful as they could be.
-.I bzip2
-tries hard to detect I/O errors and exit cleanly, but the details of
-what the problem is sometimes seem rather misleading.
-
-This manual page pertains to version 1.0 of
-.I bzip2.  
-Compressed
-data created by this version is entirely forwards and backwards
-compatible with the previous public releases, versions 0.1pl2, 0.9.0
-and 0.9.5,
-but with the following exception: 0.9.0 and above can correctly
-decompress multiple concatenated compressed files.  0.1pl2 cannot do
-this; it will stop after decompressing just the first file in the
-stream.
-
-.I bzip2recover
-uses 32-bit integers to represent bit positions in
-compressed files, so it cannot handle compressed files more than 512
-megabytes long.  This could easily be fixed.
-
-.SH AUTHOR
-Julian Seward, jseward@acm.org.
-
-http://sourceware.cygnus.com/bzip2
-http://www.muraroa.demon.co.uk
-
-The ideas embodied in
-.I bzip2
-are due to (at least) the following
-people: Michael Burrows and David Wheeler (for the block sorting
-transformation), David Wheeler (again, for the Huffman coder), Peter
-Fenwick (for the structured coding model in the original
-.I bzip,
-and many refinements), and Alistair Moffat, Radford Neal and Ian Witten
-(for the arithmetic coder in the original
-.I bzip).  
-I am much
-indebted for their help, support and advice.  See the manual in the
-source distribution for pointers to sources of documentation.  Christian
-von Roques encouraged me to look for faster sorting algorithms, so as to
-speed up compression.  Bela Lubkin encouraged me to improve the
-worst-case compression performance.  Many people sent patches, helped
-with portability problems, lent machines, gave advice and were generally
-helpful.
diff -Nru bzip2-1.0.1/bzip2.1.preformatted bzip2-1.0.1.new/bzip2.1.preformatted
--- bzip2-1.0.1/bzip2.1.preformatted    Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/bzip2.1.preformatted        Thu Jan  1 01:00:00 1970
@@ -1,462 +0,0 @@
-
-
-
-bzip2(1)                                                 bzip2(1)
-
-
-N\bNA\bAM\bME\bE
-       bzip2, bunzip2 - a block-sorting file compressor, v1.0
-       bzcat - decompresses files to stdout
-       bzip2recover - recovers data from damaged bzip2 files
-
-
-S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
-       b\bbz\bzi\bip\bp2\b2 [ -\b-c\bcd\bdf\bfk\bkq\bqs\bst\btv\bvz\bzV\bVL\bL1\b12\b23\b34\b45\b56\b67\b78\b89\b9 ] [ _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be_\bs _\b._\b._\b.  ]
-       b\bbu\bun\bnz\bzi\bip\bp2\b2 [ -\b-f\bfk\bkv\bvs\bsV\bVL\bL ] [ _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be_\bs _\b._\b._\b.  ]
-       b\bbz\bzc\bca\bat\bt [ -\b-s\bs ] [ _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be_\bs _\b._\b._\b.  ]
-       b\bbz\bzi\bip\bp2\b2r\bre\bec\bco\bov\bve\ber\br _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be
-
-
-D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
-       _\bb_\bz_\bi_\bp_\b2  compresses  files  using  the Burrows-Wheeler block
-       sorting text compression algorithm,  and  Huffman  coding.
-       Compression  is  generally  considerably  better than that
-       achieved by more conventional LZ77/LZ78-based compressors,
-       and  approaches  the performance of the PPM family of sta-
-       tistical compressors.
-
-       The command-line options are deliberately very similar  to
-       those of _\bG_\bN_\bU _\bg_\bz_\bi_\bp_\b, but they are not identical.
-
-       _\bb_\bz_\bi_\bp_\b2  expects  a list of file names to accompany the com-
-       mand-line flags.  Each file is replaced  by  a  compressed
-       version  of  itself,  with  the  name "original_name.bz2".
-       Each compressed file has the same modification date,  per-
-       missions, and, when possible, ownership as the correspond-
-       ing original, so that these properties  can  be  correctly
-       restored  at  decompression  time.   File name handling is
-       naive in the sense that there is no mechanism for preserv-
-       ing  original file names, permissions, ownerships or dates
-       in filesystems which lack these concepts, or have  serious
-       file name length restrictions, such as MS-DOS.
-
-       _\bb_\bz_\bi_\bp_\b2  and  _\bb_\bu_\bn_\bz_\bi_\bp_\b2 will by default not overwrite existing
-       files.  If you want this to happen, specify the -f flag.
-
-       If no file names  are  specified,  _\bb_\bz_\bi_\bp_\b2  compresses  from
-       standard  input  to  standard output.  In this case, _\bb_\bz_\bi_\bp_\b2
-       will decline to write compressed output to a terminal,  as
-       this  would  be  entirely  incomprehensible  and therefore
-       pointless.
-
-       _\bb_\bu_\bn_\bz_\bi_\bp_\b2 (or _\bb_\bz_\bi_\bp_\b2 _\b-_\bd_\b) decompresses  all  specified  files.
-       Files which were not created by _\bb_\bz_\bi_\bp_\b2 will be detected and
-       ignored, and a warning issued.  _\bb_\bz_\bi_\bp_\b2  attempts  to  guess
-       the  filename  for  the decompressed file from that of the
-       compressed file as follows:
-
-              filename.bz2    becomes   filename
-              filename.bz     becomes   filename
-              filename.tbz2   becomes   filename.tar
-
-
-
-                                                                1
-
-
-
-
-
-bzip2(1)                                                 bzip2(1)
-
-
-              filename.tbz    becomes   filename.tar
-              anyothername    becomes   anyothername.out
-
-       If the file does not end in one of the recognised endings,
-       _\b._\bb_\bz_\b2_\b,  _\b._\bb_\bz_\b,  _\b._\bt_\bb_\bz_\b2 or _\b._\bt_\bb_\bz_\b, _\bb_\bz_\bi_\bp_\b2 complains that it cannot
-       guess the name of the original file, and uses the original
-       name with _\b._\bo_\bu_\bt appended.
-
-       As  with compression, supplying no filenames causes decom-
-       pression from standard input to standard output.
-
-       _\bb_\bu_\bn_\bz_\bi_\bp_\b2 will correctly decompress a file which is the con-
-       catenation of two or more compressed files.  The result is
-       the concatenation of the corresponding uncompressed files.
-       Integrity testing (-t) of concatenated compressed files is
-       also supported.
-
-       You can also compress or decompress files to the  standard
-       output  by giving the -c flag.  Multiple files may be com-
-       pressed and decompressed like this.  The resulting outputs
-       are  fed  sequentially to stdout.  Compression of multiple
-       files in this manner generates a stream containing  multi-
-       ple compressed file representations.  Such a stream can be
-       decompressed correctly only  by  _\bb_\bz_\bi_\bp_\b2  version  0.9.0  or
-       later.   Earlier  versions of _\bb_\bz_\bi_\bp_\b2 will stop after decom-
-       pressing the first file in the stream.
-
-       _\bb_\bz_\bc_\ba_\bt (or _\bb_\bz_\bi_\bp_\b2 _\b-_\bd_\bc_\b) decompresses all specified  files  to
-       the standard output.
-
-       _\bb_\bz_\bi_\bp_\b2  will  read arguments from the environment variables
-       _\bB_\bZ_\bI_\bP_\b2 and _\bB_\bZ_\bI_\bP_\b, in  that  order,  and  will  process  them
-       before  any  arguments  read  from the command line.  This
-       gives a convenient way to supply default arguments.
-
-       Compression is always performed, even  if  the  compressed
-       file  is slightly larger than the original.  Files of less
-       than about one hundred bytes tend to get larger, since the
-       compression  mechanism  has  a  constant  overhead  in the
-       region of 50 bytes.  Random data (including the output  of
-       most  file  compressors)  is  coded at about 8.05 bits per
-       byte, giving an expansion of around 0.5%.
-
-       As a self-check for your  protection,  _\bb_\bz_\bi_\bp_\b2  uses  32-bit
-       CRCs  to make sure that the decompressed version of a file
-       is identical to the original.  This guards against corrup-
-       tion  of  the compressed data, and against undetected bugs
-       in _\bb_\bz_\bi_\bp_\b2 (hopefully very unlikely).  The chances  of  data
-       corruption  going  undetected  is  microscopic,  about one
-       chance in four billion for each file processed.  Be aware,
-       though,  that  the  check occurs upon decompression, so it
-       can only tell you that something is wrong.  It can't  help
-       you  recover  the original uncompressed data.  You can use
-       _\bb_\bz_\bi_\bp_\b2_\br_\be_\bc_\bo_\bv_\be_\br to try to recover data from damaged files.
-
-
-
-                                                                2
-
-
-
-
-
-bzip2(1)                                                 bzip2(1)
-
-
-       Return values: 0 for a normal exit,  1  for  environmental
-       problems  (file not found, invalid flags, I/O errors, &c),
-       2 to indicate a corrupt compressed file, 3 for an internal
-       consistency error (eg, bug) which caused _\bb_\bz_\bi_\bp_\b2 to panic.
-
-
-O\bOP\bPT\bTI\bIO\bON\bNS\bS
-       -\b-c\bc -\b--\b-s\bst\btd\bdo\bou\but\bt
-              Compress or decompress to standard output.
-
-       -\b-d\bd -\b--\b-d\bde\bec\bco\bom\bmp\bpr\bre\bes\bss\bs
-              Force  decompression.  _\bb_\bz_\bi_\bp_\b2_\b, _\bb_\bu_\bn_\bz_\bi_\bp_\b2 and _\bb_\bz_\bc_\ba_\bt are
-              really the same program,  and  the  decision  about
-              what  actions to take is done on the basis of which
-              name is used.  This flag overrides that  mechanism,
-              and forces _\bb_\bz_\bi_\bp_\b2 to decompress.
-
-       -\b-z\bz -\b--\b-c\bco\bom\bmp\bpr\bre\bes\bss\bs
-              The  complement  to -d: forces compression, regard-
-              less of the invokation name.
-
-       -\b-t\bt -\b--\b-t\bte\bes\bst\bt
-              Check integrity of the specified file(s), but don't
-              decompress  them.   This  really  performs  a trial
-              decompression and throws away the result.
-
-       -\b-f\bf -\b--\b-f\bfo\bor\brc\bce\be
-              Force overwrite of output files.   Normally,  _\bb_\bz_\bi_\bp_\b2
-              will  not  overwrite  existing  output files.  Also
-              forces _\bb_\bz_\bi_\bp_\b2 to break hard links to files, which it
-              otherwise wouldn't do.
-
-       -\b-k\bk -\b--\b-k\bke\bee\bep\bp
-              Keep  (don't delete) input files during compression
-              or decompression.
-
-       -\b-s\bs -\b--\b-s\bsm\bma\bal\bll\bl
-              Reduce memory usage, for compression, decompression
-              and  testing.   Files  are  decompressed and tested
-              using a modified algorithm which only requires  2.5
-              bytes  per  block byte.  This means any file can be
-              decompressed in 2300k of memory,  albeit  at  about
-              half the normal speed.
-
-              During  compression,  -s  selects  a  block size of
-              200k, which limits memory use to  around  the  same
-              figure,  at  the expense of your compression ratio.
-              In short, if your  machine  is  low  on  memory  (8
-              megabytes  or  less),  use  -s for everything.  See
-              MEMORY MANAGEMENT below.
-
-       -\b-q\bq -\b--\b-q\bqu\bui\bie\bet\bt
-              Suppress non-essential warning messages.   Messages
-              pertaining  to I/O errors and other critical events
-
-
-
-                                                                3
-
-
-
-
-
-bzip2(1)                                                 bzip2(1)
-
-
-              will not be suppressed.
-
-       -\b-v\bv -\b--\b-v\bve\ber\brb\bbo\bos\bse\be
-              Verbose mode -- show the compression ratio for each
-              file  processed.   Further  -v's  increase the ver-
-              bosity level, spewing out lots of information which
-              is primarily of interest for diagnostic purposes.
-
-       -\b-L\bL -\b--\b-l\bli\bic\bce\ben\bns\bse\be -\b-V\bV -\b--\b-v\bve\ber\brs\bsi\bio\bon\bn
-              Display  the  software  version,  license terms and
-              conditions.
-
-       -\b-1\b1 t\bto\bo -\b-9\b9
-              Set the block size to 100 k, 200 k ..  900  k  when
-              compressing.   Has  no  effect  when decompressing.
-              See MEMORY MANAGEMENT below.
-
-       -\b--\b-     Treats all subsequent arguments as file names, even
-              if they start with a dash.  This is so you can han-
-              dle files with names beginning  with  a  dash,  for
-              example: bzip2 -- -myfilename.
-
-       -\b--\b-r\bre\bep\bpe\bet\bti\bit\bti\biv\bve\be-\b-f\bfa\bas\bst\bt -\b--\b-r\bre\bep\bpe\bet\bti\bit\bti\biv\bve\be-\b-b\bbe\bes\bst\bt
-              These  flags  are  redundant  in versions 0.9.5 and
-              above.  They provided some coarse control over  the
-              behaviour  of the sorting algorithm in earlier ver-
-              sions, which was sometimes useful.  0.9.5 and above
-              have  an  improved  algorithm  which  renders these
-              flags irrelevant.
-
-
-M\bME\bEM\bMO\bOR\bRY\bY M\bMA\bAN\bNA\bAG\bGE\bEM\bME\bEN\bNT\bT
-       _\bb_\bz_\bi_\bp_\b2 compresses large files in blocks.   The  block  size
-       affects  both  the  compression  ratio  achieved,  and the
-       amount of memory needed for compression and decompression.
-       The  flags  -1  through  -9  specify  the block size to be
-       100,000 bytes through 900,000 bytes (the default)  respec-
-       tively.   At  decompression  time, the block size used for
-       compression is read from  the  header  of  the  compressed
-       file, and _\bb_\bu_\bn_\bz_\bi_\bp_\b2 then allocates itself just enough memory
-       to decompress the file.  Since block sizes are  stored  in
-       compressed  files,  it follows that the flags -1 to -9 are
-       irrelevant to and so ignored during decompression.
-
-       Compression and decompression requirements, in bytes,  can
-       be estimated as:
-
-              Compression:   400k + ( 8 x block size )
-
-              Decompression: 100k + ( 4 x block size ), or
-                             100k + ( 2.5 x block size )
-
-       Larger  block  sizes  give  rapidly  diminishing  marginal
-       returns.  Most of the compression comes from the first two
-
-
-
-                                                                4
-
-
-
-
-
-bzip2(1)                                                 bzip2(1)
-
-
-       or  three hundred k of block size, a fact worth bearing in
-       mind when using _\bb_\bz_\bi_\bp_\b2  on  small  machines.   It  is  also
-       important  to  appreciate  that  the  decompression memory
-       requirement is set at compression time by  the  choice  of
-       block size.
-
-       For  files  compressed  with  the default 900k block size,
-       _\bb_\bu_\bn_\bz_\bi_\bp_\b2 will require about 3700 kbytes to decompress.   To
-       support decompression of any file on a 4 megabyte machine,
-       _\bb_\bu_\bn_\bz_\bi_\bp_\b2 has an option to  decompress  using  approximately
-       half this amount of memory, about 2300 kbytes.  Decompres-
-       sion speed is also halved, so you should use  this  option
-       only where necessary.  The relevant flag is -s.
-
-       In general, try and use the largest block size memory con-
-       straints  allow,  since  that  maximises  the  compression
-       achieved.   Compression and decompression speed are virtu-
-       ally unaffected by block size.
-
-       Another significant point applies to files which fit in  a
-       single  block  --  that  means  most files you'd encounter
-       using a large block  size.   The  amount  of  real  memory
-       touched is proportional to the size of the file, since the
-       file is smaller than a block.  For example, compressing  a
-       file  20,000  bytes  long  with the flag -9 will cause the
-       compressor to allocate around 7600k of  memory,  but  only
-       touch 400k + 20000 * 8 = 560 kbytes of it.  Similarly, the
-       decompressor will allocate 3700k but  only  touch  100k  +
-       20000 * 4 = 180 kbytes.
-
-       Here  is a table which summarises the maximum memory usage
-       for different block sizes.  Also  recorded  is  the  total
-       compressed  size for 14 files of the Calgary Text Compres-
-       sion Corpus totalling 3,141,622 bytes.  This column  gives
-       some  feel  for  how  compression  varies with block size.
-       These figures tend to understate the advantage  of  larger
-       block  sizes  for  larger files, since the Corpus is domi-
-       nated by smaller files.
-
-                  Compress   Decompress   Decompress   Corpus
-           Flag     usage      usage       -s usage     Size
-
-            -1      1200k       500k         350k      914704
-            -2      2000k       900k         600k      877703
-            -3      2800k      1300k         850k      860338
-            -4      3600k      1700k        1100k      846899
-            -5      4400k      2100k        1350k      845160
-            -6      5200k      2500k        1600k      838626
-            -7      6100k      2900k        1850k      834096
-            -8      6800k      3300k        2100k      828642
-            -9      7600k      3700k        2350k      828642
-
-
-
-
-
-
-                                                                5
-
-
-
-
-
-bzip2(1)                                                 bzip2(1)
-
-
-R\bRE\bEC\bCO\bOV\bVE\bER\bRI\bIN\bNG\bG D\bDA\bAT\bTA\bA F\bFR\bRO\bOM\bM D\bDA\bAM\bMA\bAG\bGE\bED\bD F\bFI\bIL\bLE\bES\bS
-       _\bb_\bz_\bi_\bp_\b2 compresses files in blocks, usually 900kbytes  long.
-       Each block is handled independently.  If a media or trans-
-       mission error causes a multi-block  .bz2  file  to  become
-       damaged,  it  may  be  possible  to  recover data from the
-       undamaged blocks in the file.
-
-       The compressed representation of each block  is  delimited
-       by  a  48-bit pattern, which makes it possible to find the
-       block boundaries with reasonable  certainty.   Each  block
-       also  carries its own 32-bit CRC, so damaged blocks can be
-       distinguished from undamaged ones.
-
-       _\bb_\bz_\bi_\bp_\b2_\br_\be_\bc_\bo_\bv_\be_\br is a  simple  program  whose  purpose  is  to
-       search  for blocks in .bz2 files, and write each block out
-       into its own .bz2 file.  You can then use _\bb_\bz_\bi_\bp_\b2 -t to test
-       the integrity of the resulting files, and decompress those
-       which are undamaged.
-
-       _\bb_\bz_\bi_\bp_\b2_\br_\be_\bc_\bo_\bv_\be_\br takes a single argument, the name of the dam-
-       aged file, and writes a number of files "rec0001file.bz2",
-       "rec0002file.bz2", etc, containing the  extracted  blocks.
-       The  output  filenames  are  designed  so  that the use of
-       wildcards in subsequent processing -- for example,  "bzip2
-       -dc   rec*file.bz2 > recovered_data" -- lists the files in
-       the correct order.
-
-       _\bb_\bz_\bi_\bp_\b2_\br_\be_\bc_\bo_\bv_\be_\br should be of most use dealing with large .bz2
-       files,  as  these will contain many blocks.  It is clearly
-       futile to use it on damaged single-block  files,  since  a
-       damaged  block  cannot  be recovered.  If you wish to min-
-       imise any potential data loss through media  or  transmis-
-       sion errors, you might consider compressing with a smaller
-       block size.
-
-
-P\bPE\bER\bRF\bFO\bOR\bRM\bMA\bAN\bNC\bCE\bE N\bNO\bOT\bTE\bES\bS
-       The sorting phase of compression gathers together  similar
-       strings  in  the  file.  Because of this, files containing
-       very long runs of  repeated  symbols,  like  "aabaabaabaab
-       ..."   (repeated  several hundred times) may compress more
-       slowly than normal.  Versions 0.9.5 and  above  fare  much
-       better  than previous versions in this respect.  The ratio
-       between worst-case and average-case compression time is in
-       the  region  of  10:1.  For previous versions, this figure
-       was more like 100:1.  You can use the -vvvv option to mon-
-       itor progress in great detail, if you want.
-
-       Decompression speed is unaffected by these phenomena.
-
-       _\bb_\bz_\bi_\bp_\b2  usually  allocates  several  megabytes of memory to
-       operate in, and then charges all over it in a fairly  ran-
-       dom  fashion.   This means that performance, both for com-
-       pressing and decompressing, is largely determined  by  the
-
-
-
-                                                                6
-
-
-
-
-
-bzip2(1)                                                 bzip2(1)
-
-
-       speed  at  which  your  machine  can service cache misses.
-       Because of this, small changes to the code to  reduce  the
-       miss  rate  have  been observed to give disproportionately
-       large performance improvements.  I imagine _\bb_\bz_\bi_\bp_\b2 will per-
-       form best on machines with very large caches.
-
-
-C\bCA\bAV\bVE\bEA\bAT\bTS\bS
-       I/O  error  messages  are not as helpful as they could be.
-       _\bb_\bz_\bi_\bp_\b2 tries hard to detect I/O errors  and  exit  cleanly,
-       but  the  details  of  what  the problem is sometimes seem
-       rather misleading.
-
-       This manual page pertains to version 1.0 of  _\bb_\bz_\bi_\bp_\b2_\b.   Com-
-       pressed  data created by this version is entirely forwards
-       and  backwards  compatible  with   the   previous   public
-       releases,  versions  0.1pl2, 0.9.0 and 0.9.5, but with the
-       following exception: 0.9.0 and above can correctly  decom-
-       press multiple concatenated compressed files.  0.1pl2 can-
-       not do this; it will stop  after  decompressing  just  the
-       first file in the stream.
-
-       _\bb_\bz_\bi_\bp_\b2_\br_\be_\bc_\bo_\bv_\be_\br  uses  32-bit integers to represent bit posi-
-       tions in compressed files, so it cannot handle  compressed
-       files  more than 512 megabytes long.  This could easily be
-       fixed.
-
-
-A\bAU\bUT\bTH\bHO\bOR\bR
-       Julian Seward, jseward@acm.org.
-
-       http://sourceware.cygnus.com/bzip2
-       http://www.muraroa.demon.co.uk
-
-       The ideas embodied in _\bb_\bz_\bi_\bp_\b2 are due to (at least) the fol-
-       lowing people: Michael Burrows and David Wheeler (for  the
-       block  sorting  transformation), David Wheeler (again, for
-       the Huffman coder), Peter Fenwick (for the structured cod-
-       ing model in the original _\bb_\bz_\bi_\bp_\b, and many refinements), and
-       Alistair Moffat, Radford Neal  and  Ian  Witten  (for  the
-       arithmetic  coder  in  the  original  _\bb_\bz_\bi_\bp_\b)_\b.   I  am  much
-       indebted for their help, support and advice.  See the man-
-       ual  in the source distribution for pointers to sources of
-       documentation.  Christian von Roques encouraged me to look
-       for  faster sorting algorithms, so as to speed up compres-
-       sion.  Bela Lubkin encouraged me to improve the worst-case
-       compression performance.  Many people sent patches, helped
-       with portability problems, lent machines, gave advice  and
-       were generally helpful.
-
-
-
-
-
-
-
-
-                                                                7
-
-
diff -Nru bzip2-1.0.1/bzless bzip2-1.0.1.new/bzless
--- bzip2-1.0.1/bzless  Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/bzless      Sat Jun 24 20:16:09 2000
@@ -0,0 +1,2 @@
+#!/bin/sh
+%{_bindir}/bunzip2 -c "\$@" | /usr/bin/less
diff -Nru bzip2-1.0.1/config.h.in bzip2-1.0.1.new/config.h.in
--- bzip2-1.0.1/config.h.in     Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/config.h.in Sat Jun 24 20:13:06 2000
@@ -0,0 +1,17 @@
+/* config.h.in.  Generated automatically from configure.in by autoheader.  */
+
+/* Name of package */
+#undef PACKAGE
+
+/* Version number of package */
+#undef VERSION
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+#undef _FILE_OFFSET_BITS
+
+/* Define to make fseeko etc. visible, on some hosts. */
+#undef _LARGEFILE_SOURCE
+
+/* Define for large files, on AIX-style hosts. */
+#undef _LARGE_FILES
+
diff -Nru bzip2-1.0.1/configure.in bzip2-1.0.1.new/configure.in
--- bzip2-1.0.1/configure.in    Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/configure.in        Sat Jun 24 20:13:06 2000
@@ -0,0 +1,10 @@
+AC_INIT(bzip2.c)
+AM_INIT_AUTOMAKE(bzip2,1.0.1)
+AM_CONFIG_HEADER(config.h)
+AC_PROG_CC
+AM_PROG_LIBTOOL
+AC_PROG_LN_S
+AC_SYS_LARGEFILE
+AC_OUTPUT(Makefile
+       doc/Makefile
+       doc/pl/Makefile)
diff -Nru bzip2-1.0.1/crctable.c bzip2-1.0.1.new/crctable.c
--- bzip2-1.0.1/crctable.c      Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/crctable.c  Sat Jun 24 20:13:06 2000
@@ -58,6 +58,10 @@
   For more information on these sources, see the manual.
 --*/
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 
 #include "bzlib_private.h"
 
diff -Nru bzip2-1.0.1/decompress.c bzip2-1.0.1.new/decompress.c
--- bzip2-1.0.1/decompress.c    Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/decompress.c        Sat Jun 24 20:13:06 2000
@@ -58,6 +58,10 @@
   For more information on these sources, see the manual.
 --*/
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 
 #include "bzlib_private.h"
 
diff -Nru bzip2-1.0.1/dlltest.c bzip2-1.0.1.new/dlltest.c
--- bzip2-1.0.1/dlltest.c       Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/dlltest.c   Sat Jun 24 20:13:06 2000
@@ -8,6 +8,10 @@
    usage: minibz2 [-d] [-{1,2,..9}] [[srcfilename] destfilename]\r
 */\r
 \r
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #define BZ_IMPORT\r
 #include <stdio.h>\r
 #include <stdlib.h>\r
diff -Nru bzip2-1.0.1/doc/Makefile.am bzip2-1.0.1.new/doc/Makefile.am
--- bzip2-1.0.1/doc/Makefile.am Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/doc/Makefile.am     Sat Jun 24 20:14:43 2000
@@ -0,0 +1,5 @@
+
+SUBDIRS                = pl
+
+man_MANS       = bzip2.1 bunzip2.1 bzcat.1 bzip2recover.1
+#info_TEXINFOS = bzip2.texi
diff -Nru bzip2-1.0.1/doc/bunzip2.1 bzip2-1.0.1.new/doc/bunzip2.1
--- bzip2-1.0.1/doc/bunzip2.1   Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/doc/bunzip2.1       Sat Jun 24 20:13:06 2000
@@ -0,0 +1 @@
+.so bzip2.1
\ No newline at end of file
diff -Nru bzip2-1.0.1/doc/bzcat.1 bzip2-1.0.1.new/doc/bzcat.1
--- bzip2-1.0.1/doc/bzcat.1     Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/doc/bzcat.1 Sat Jun 24 20:13:06 2000
@@ -0,0 +1 @@
+.so bzip2.1
\ No newline at end of file
diff -Nru bzip2-1.0.1/doc/bzip2.1 bzip2-1.0.1.new/doc/bzip2.1
--- bzip2-1.0.1/doc/bzip2.1     Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/doc/bzip2.1 Sat Jun 24 20:13:06 2000
@@ -0,0 +1,439 @@
+.PU
+.TH bzip2 1
+.SH NAME
+bzip2, bunzip2 \- a block-sorting file compressor, v1.0
+.br
+bzcat \- decompresses files to stdout
+.br
+bzip2recover \- recovers data from damaged bzip2 files
+
+.SH SYNOPSIS
+.ll +8
+.B bzip2
+.RB [ " \-cdfkqstvzVL123456789 " ]
+[
+.I "filenames \&..."
+]
+.ll -8
+.br
+.B bunzip2
+.RB [ " \-fkvsVL " ]
+[ 
+.I "filenames \&..."
+]
+.br
+.B bzcat
+.RB [ " \-s " ]
+[ 
+.I "filenames \&..."
+]
+.br
+.B bzip2recover
+.I "filename"
+
+.SH DESCRIPTION
+.I bzip2
+compresses files using the Burrows-Wheeler block sorting
+text compression algorithm, and Huffman coding.  Compression is
+generally considerably better than that achieved by more conventional
+LZ77/LZ78-based compressors, and approaches the performance of the PPM
+family of statistical compressors.
+
+The command-line options are deliberately very similar to 
+those of 
+.I GNU gzip, 
+but they are not identical.
+
+.I bzip2
+expects a list of file names to accompany the
+command-line flags.  Each file is replaced by a compressed version of
+itself, with the name "original_name.bz2".  
+Each compressed file
+has the same modification date, permissions, and, when possible,
+ownership as the corresponding original, so that these properties can
+be correctly restored at decompression time.  File name handling is
+naive in the sense that there is no mechanism for preserving original
+file names, permissions, ownerships or dates in filesystems which lack
+these concepts, or have serious file name length restrictions, such as
+MS-DOS.
+
+.I bzip2
+and
+.I bunzip2
+will by default not overwrite existing
+files.  If you want this to happen, specify the \-f flag.
+
+If no file names are specified,
+.I bzip2
+compresses from standard
+input to standard output.  In this case,
+.I bzip2
+will decline to
+write compressed output to a terminal, as this would be entirely
+incomprehensible and therefore pointless.
+
+.I bunzip2
+(or
+.I bzip2 \-d) 
+decompresses all
+specified files.  Files which were not created by 
+.I bzip2
+will be detected and ignored, and a warning issued.  
+.I bzip2
+attempts to guess the filename for the decompressed file 
+from that of the compressed file as follows:
+
+       filename.bz2    becomes   filename
+       filename.bz     becomes   filename
+       filename.tbz2   becomes   filename.tar
+       filename.tbz    becomes   filename.tar
+       anyothername    becomes   anyothername.out
+
+If the file does not end in one of the recognised endings, 
+.I .bz2, 
+.I .bz, 
+.I .tbz2
+or
+.I .tbz, 
+.I bzip2 
+complains that it cannot
+guess the name of the original file, and uses the original name
+with
+.I .out
+appended.
+
+As with compression, supplying no
+filenames causes decompression from 
+standard input to standard output.
+
+.I bunzip2 
+will correctly decompress a file which is the
+concatenation of two or more compressed files.  The result is the
+concatenation of the corresponding uncompressed files.  Integrity
+testing (\-t) 
+of concatenated 
+compressed files is also supported.
+
+You can also compress or decompress files to the standard output by
+giving the \-c flag.  Multiple files may be compressed and
+decompressed like this.  The resulting outputs are fed sequentially to
+stdout.  Compression of multiple files 
+in this manner generates a stream
+containing multiple compressed file representations.  Such a stream
+can be decompressed correctly only by
+.I bzip2 
+version 0.9.0 or
+later.  Earlier versions of
+.I bzip2
+will stop after decompressing
+the first file in the stream.
+
+.I bzcat
+(or
+.I bzip2 -dc) 
+decompresses all specified files to
+the standard output.
+
+.I bzip2
+will read arguments from the environment variables
+.I BZIP2
+and
+.I BZIP,
+in that order, and will process them
+before any arguments read from the command line.  This gives a 
+convenient way to supply default arguments.
+
+Compression is always performed, even if the compressed 
+file is slightly
+larger than the original.  Files of less than about one hundred bytes
+tend to get larger, since the compression mechanism has a constant
+overhead in the region of 50 bytes.  Random data (including the output
+of most file compressors) is coded at about 8.05 bits per byte, giving
+an expansion of around 0.5%.
+
+As a self-check for your protection, 
+.I 
+bzip2
+uses 32-bit CRCs to
+make sure that the decompressed version of a file is identical to the
+original.  This guards against corruption of the compressed data, and
+against undetected bugs in
+.I bzip2
+(hopefully very unlikely).  The
+chances of data corruption going undetected is microscopic, about one
+chance in four billion for each file processed.  Be aware, though, that
+the check occurs upon decompression, so it can only tell you that
+something is wrong.  It can't help you 
+recover the original uncompressed
+data.  You can use 
+.I bzip2recover
+to try to recover data from
+damaged files.
+
+Return values: 0 for a normal exit, 1 for environmental problems (file
+not found, invalid flags, I/O errors, &c), 2 to indicate a corrupt
+compressed file, 3 for an internal consistency error (eg, bug) which
+caused
+.I bzip2
+to panic.
+
+.SH OPTIONS
+.TP
+.B \-c --stdout
+Compress or decompress to standard output.
+.TP
+.B \-d --decompress
+Force decompression.  
+.I bzip2, 
+.I bunzip2 
+and
+.I bzcat 
+are
+really the same program, and the decision about what actions to take is
+done on the basis of which name is used.  This flag overrides that
+mechanism, and forces 
+.I bzip2
+to decompress.
+.TP
+.B \-z --compress
+The complement to \-d: forces compression, regardless of the
+invokation name.
+.TP
+.B \-t --test
+Check integrity of the specified file(s), but don't decompress them.
+This really performs a trial decompression and throws away the result.
+.TP
+.B \-f --force
+Force overwrite of output files.  Normally,
+.I bzip2 
+will not overwrite
+existing output files.  Also forces 
+.I bzip2 
+to break hard links
+to files, which it otherwise wouldn't do.
+.TP
+.B \-k --keep
+Keep (don't delete) input files during compression
+or decompression.
+.TP
+.B \-s --small
+Reduce memory usage, for compression, decompression and testing.  Files
+are decompressed and tested using a modified algorithm which only
+requires 2.5 bytes per block byte.  This means any file can be
+decompressed in 2300k of memory, albeit at about half the normal speed.
+
+During compression, \-s selects a block size of 200k, which limits
+memory use to around the same figure, at the expense of your compression
+ratio.  In short, if your machine is low on memory (8 megabytes or
+less), use \-s for everything.  See MEMORY MANAGEMENT below.
+.TP
+.B \-q --quiet
+Suppress non-essential warning messages.  Messages pertaining to
+I/O errors and other critical events will not be suppressed.
+.TP
+.B \-v --verbose
+Verbose mode -- show the compression ratio for each file processed.
+Further \-v's increase the verbosity level, spewing out lots of
+information which is primarily of interest for diagnostic purposes.
+.TP
+.B \-L --license -V --version
+Display the software version, license terms and conditions.
+.TP
+.B \-1 to \-9
+Set the block size to 100 k, 200 k ..  900 k when compressing.  Has no
+effect when decompressing.  See MEMORY MANAGEMENT below.
+.TP
+.B \--
+Treats all subsequent arguments as file names, even if they start
+with a dash.  This is so you can handle files with names beginning
+with a dash, for example: bzip2 \-- \-myfilename.
+.TP
+.B \--repetitive-fast --repetitive-best
+These flags are redundant in versions 0.9.5 and above.  They provided
+some coarse control over the behaviour of the sorting algorithm in
+earlier versions, which was sometimes useful.  0.9.5 and above have an
+improved algorithm which renders these flags irrelevant.
+
+.SH MEMORY MANAGEMENT
+.I bzip2 
+compresses large files in blocks.  The block size affects
+both the compression ratio achieved, and the amount of memory needed for
+compression and decompression.  The flags \-1 through \-9
+specify the block size to be 100,000 bytes through 900,000 bytes (the
+default) respectively.  At decompression time, the block size used for
+compression is read from the header of the compressed file, and
+.I bunzip2
+then allocates itself just enough memory to decompress
+the file.  Since block sizes are stored in compressed files, it follows
+that the flags \-1 to \-9 are irrelevant to and so ignored
+during decompression.
+
+Compression and decompression requirements, 
+in bytes, can be estimated as:
+
+       Compression:   400k + ( 8 x block size )
+
+       Decompression: 100k + ( 4 x block size ), or
+                      100k + ( 2.5 x block size )
+
+Larger block sizes give rapidly diminishing marginal returns.  Most of
+the compression comes from the first two or three hundred k of block
+size, a fact worth bearing in mind when using
+.I bzip2
+on small machines.
+It is also important to appreciate that the decompression memory
+requirement is set at compression time by the choice of block size.
+
+For files compressed with the default 900k block size,
+.I bunzip2
+will require about 3700 kbytes to decompress.  To support decompression
+of any file on a 4 megabyte machine, 
+.I bunzip2
+has an option to
+decompress using approximately half this amount of memory, about 2300
+kbytes.  Decompression speed is also halved, so you should use this
+option only where necessary.  The relevant flag is -s.
+
+In general, try and use the largest block size memory constraints allow,
+since that maximises the compression achieved.  Compression and
+decompression speed are virtually unaffected by block size.
+
+Another significant point applies to files which fit in a single block
+-- that means most files you'd encounter using a large block size.  The
+amount of real memory touched is proportional to the size of the file,
+since the file is smaller than a block.  For example, compressing a file
+20,000 bytes long with the flag -9 will cause the compressor to
+allocate around 7600k of memory, but only touch 400k + 20000 * 8 = 560
+kbytes of it.  Similarly, the decompressor will allocate 3700k but only
+touch 100k + 20000 * 4 = 180 kbytes.
+
+Here is a table which summarises the maximum memory usage for different
+block sizes.  Also recorded is the total compressed size for 14 files of
+the Calgary Text Compression Corpus totalling 3,141,622 bytes.  This
+column gives some feel for how compression varies with block size.
+These figures tend to understate the advantage of larger block sizes for
+larger files, since the Corpus is dominated by smaller files.
+
+           Compress   Decompress   Decompress   Corpus
+    Flag     usage      usage       -s usage     Size
+
+     -1      1200k       500k         350k      914704
+     -2      2000k       900k         600k      877703
+     -3      2800k      1300k         850k      860338
+     -4      3600k      1700k        1100k      846899
+     -5      4400k      2100k        1350k      845160
+     -6      5200k      2500k        1600k      838626
+     -7      6100k      2900k        1850k      834096
+     -8      6800k      3300k        2100k      828642
+     -9      7600k      3700k        2350k      828642
+
+.SH RECOVERING DATA FROM DAMAGED FILES
+.I bzip2
+compresses files in blocks, usually 900kbytes long.  Each
+block is handled independently.  If a media or transmission error causes
+a multi-block .bz2
+file to become damaged, it may be possible to
+recover data from the undamaged blocks in the file.
+
+The compressed representation of each block is delimited by a 48-bit
+pattern, which makes it possible to find the block boundaries with
+reasonable certainty.  Each block also carries its own 32-bit CRC, so
+damaged blocks can be distinguished from undamaged ones.
+
+.I bzip2recover
+is a simple program whose purpose is to search for
+blocks in .bz2 files, and write each block out into its own .bz2 
+file.  You can then use
+.I bzip2 
+\-t
+to test the
+integrity of the resulting files, and decompress those which are
+undamaged.
+
+.I bzip2recover
+takes a single argument, the name of the damaged file, 
+and writes a number of files "rec0001file.bz2",
+"rec0002file.bz2", etc, containing the  extracted  blocks.
+The  output  filenames  are  designed  so  that the use of
+wildcards in subsequent processing -- for example,  
+"bzip2 -dc  rec*file.bz2 > recovered_data" -- lists the files in
+the correct order.
+
+.I bzip2recover
+should be of most use dealing with large .bz2
+files,  as  these will contain many blocks.  It is clearly
+futile to use it on damaged single-block  files,  since  a
+damaged  block  cannot  be recovered.  If you wish to minimise 
+any potential data loss through media  or  transmission errors, 
+you might consider compressing with a smaller
+block size.
+
+.SH PERFORMANCE NOTES
+The sorting phase of compression gathers together similar strings in the
+file.  Because of this, files containing very long runs of repeated
+symbols, like "aabaabaabaab ..."  (repeated several hundred times) may
+compress more slowly than normal.  Versions 0.9.5 and above fare much
+better than previous versions in this respect.  The ratio between
+worst-case and average-case compression time is in the region of 10:1.
+For previous versions, this figure was more like 100:1.  You can use the
+\-vvvv option to monitor progress in great detail, if you want.
+
+Decompression speed is unaffected by these phenomena.
+
+.I bzip2
+usually allocates several megabytes of memory to operate
+in, and then charges all over it in a fairly random fashion.  This means
+that performance, both for compressing and decompressing, is largely
+determined by the speed at which your machine can service cache misses.
+Because of this, small changes to the code to reduce the miss rate have
+been observed to give disproportionately large performance improvements.
+I imagine 
+.I bzip2
+will perform best on machines with very large caches.
+
+.SH CAVEATS
+I/O error messages are not as helpful as they could be.
+.I bzip2
+tries hard to detect I/O errors and exit cleanly, but the details of
+what the problem is sometimes seem rather misleading.
+
+This manual page pertains to version 1.0 of
+.I bzip2.  
+Compressed
+data created by this version is entirely forwards and backwards
+compatible with the previous public releases, versions 0.1pl2, 0.9.0
+and 0.9.5,
+but with the following exception: 0.9.0 and above can correctly
+decompress multiple concatenated compressed files.  0.1pl2 cannot do
+this; it will stop after decompressing just the first file in the
+stream.
+
+.I bzip2recover
+uses 32-bit integers to represent bit positions in
+compressed files, so it cannot handle compressed files more than 512
+megabytes long.  This could easily be fixed.
+
+.SH AUTHOR
+Julian Seward, jseward@acm.org.
+
+http://sourceware.cygnus.com/bzip2
+http://www.muraroa.demon.co.uk
+
+The ideas embodied in
+.I bzip2
+are due to (at least) the following
+people: Michael Burrows and David Wheeler (for the block sorting
+transformation), David Wheeler (again, for the Huffman coder), Peter
+Fenwick (for the structured coding model in the original
+.I bzip,
+and many refinements), and Alistair Moffat, Radford Neal and Ian Witten
+(for the arithmetic coder in the original
+.I bzip).  
+I am much
+indebted for their help, support and advice.  See the manual in the
+source distribution for pointers to sources of documentation.  Christian
+von Roques encouraged me to look for faster sorting algorithms, so as to
+speed up compression.  Bela Lubkin encouraged me to improve the
+worst-case compression performance.  Many people sent patches, helped
+with portability problems, lent machines, gave advice and were generally
+helpful.
diff -Nru bzip2-1.0.1/doc/bzip2.texi bzip2-1.0.1.new/doc/bzip2.texi
--- bzip2-1.0.1/doc/bzip2.texi  Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/doc/bzip2.texi      Sat Jun 24 20:13:06 2000
@@ -0,0 +1,2217 @@
+\input texinfo  @c                                  -*- Texinfo -*-
+@setfilename bzip2.info
+
+@ignore
+This file documents bzip2 version 1.0, and associated library
+libbzip2, written by Julian Seward (jseward@acm.org).
+
+Copyright (C) 1996-2000 Julian R Seward
+
+Permission is granted to make and distribute verbatim copies of
+this manual provided the copyright notice and this permission notice
+are preserved on all copies.
+
+Permission is granted to copy and distribute translations of this manual
+into another language, under the above conditions for verbatim copies.
+@end ignore
+
+@ifinfo
+@format
+@dircategory File utilities:
+* Bzip2: (bzip2).                      A program and library for data
+                                       compression
+@end direntry
+@end format
+@end ifinfo
+
+@iftex
+@c @finalout
+@settitle bzip2 and libbzip2
+@titlepage
+@title bzip2 and libbzip2
+@subtitle a program and library for data compression
+@subtitle copyright (C) 1996-2000 Julian Seward
+@subtitle version 1.0 of 21 March 2000
+@author Julian Seward
+
+@end titlepage
+
+@parindent 0mm
+@parskip 2mm
+
+@end iftex
+@node Top, Overview, (dir), (dir)
+
+@top bzip2
+
+This program, @code{bzip2}, 
+and associated library @code{libbzip2}, are
+Copyright (C) 1996-2000 Julian R Seward.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+@itemize @bullet
+@item
+   Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+@item
+   The origin of this software must not be misrepresented; you must 
+   not claim that you wrote the original software.  If you use this 
+   software in a product, an acknowledgment in the product 
+   documentation would be appreciated but is not required.
+@item
+   Altered source versions must be plainly marked as such, and must
+   not be misrepresented as being the original software.
+@item
+   The name of the author may not be used to endorse or promote 
+   products derived from this software without specific prior written 
+   permission.
+@end itemize
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+Julian Seward, Cambridge, UK.
+
+@code{jseward@@acm.org}
+
+@code{http://sourceware.cygnus.com/bzip2}
+
+@code{http://www.cacheprof.org}
+
+@code{http://www.muraroa.demon.co.uk}
+
+@code{bzip2}/@code{libbzip2} version 1.0 of 21 March 2000.
+
+PATENTS: To the best of my knowledge, @code{bzip2} does not use any patented
+algorithms.  However, I do not have the resources available to carry out
+a full patent search.  Therefore I cannot give any guarantee of the
+above statement.
+
+
+
+
+
+
+
+@node Overview, Implementation, Top, Top
+@chapter Introduction
+
+@code{bzip2}  compresses  files  using the Burrows-Wheeler 
+block-sorting text compression algorithm,  and  Huffman  coding.
+Compression  is  generally  considerably  better than that
+achieved by more conventional LZ77/LZ78-based compressors,
+and  approaches  the performance of the PPM family of statistical compressors.
+
+@code{bzip2} is built on top of @code{libbzip2}, a flexible library
+for handling compressed data in the @code{bzip2} format.  This manual
+describes both how to use the program and 
+how to work with the library interface.  Most of the
+manual is devoted to this library, not the program, 
+which is good news if your interest is only in the program.
+
+Chapter 2 describes how to use @code{bzip2}; this is the only part 
+you need to read if you just want to know how to operate the program.
+Chapter 3 describes the programming interfaces in detail, and
+Chapter 4 records some miscellaneous notes which I thought
+ought to be recorded somewhere.
+
+
+@chapter How to use @code{bzip2}
+
+This chapter contains a copy of the @code{bzip2} man page,
+and nothing else.
+
+@quotation
+
+@unnumberedsubsubsec NAME
+@itemize
+@item @code{bzip2}, @code{bunzip2}
+- a block-sorting file compressor, v1.0
+@item @code{bzcat} 
+- decompresses files to stdout
+@item @code{bzip2recover}
+- recovers data from damaged bzip2 files
+@end itemize
+
+@unnumberedsubsubsec SYNOPSIS
+@itemize
+@item @code{bzip2} [ -cdfkqstvzVL123456789 ] [ filenames ...  ]
+@item @code{bunzip2} [ -fkvsVL ] [ filenames ...  ]
+@item @code{bzcat} [ -s ] [ filenames ...  ]
+@item @code{bzip2recover} filename
+@end itemize
+
+@unnumberedsubsubsec DESCRIPTION
+
+@code{bzip2} compresses files using the Burrows-Wheeler block sorting
+text compression algorithm, and Huffman coding.  Compression is
+generally considerably better than that achieved by more conventional
+LZ77/LZ78-based compressors, and approaches the performance of the PPM
+family of statistical compressors.
+
+The command-line options are deliberately very similar to those of GNU
+@code{gzip}, but they are not identical.
+
+@code{bzip2} expects a list of file names to accompany the command-line
+flags.  Each file is replaced by a compressed version of itself, with
+the name @code{original_name.bz2}.  Each compressed file has the same
+modification date, permissions, and, when possible, ownership as the
+corresponding original, so that these properties can be correctly
+restored at decompression time.  File name handling is naive in the
+sense that there is no mechanism for preserving original file names,
+permissions, ownerships or dates in filesystems which lack these
+concepts, or have serious file name length restrictions, such as MS-DOS.
+
+@code{bzip2} and @code{bunzip2} will by default not overwrite existing
+files.  If you want this to happen, specify the @code{-f} flag.
+
+If no file names are specified, @code{bzip2} compresses from standard
+input to standard output.  In this case, @code{bzip2} will decline to
+write compressed output to a terminal, as this would be entirely
+incomprehensible and therefore pointless.
+
+@code{bunzip2} (or @code{bzip2 -d}) decompresses all
+specified files.  Files which were not created by @code{bzip2}
+will be detected and ignored, and a warning issued.  
+@code{bzip2} attempts to guess the filename for the decompressed file 
+from that of the compressed file as follows:
+@itemize
+@item @code{filename.bz2 } becomes @code{filename}
+@item @code{filename.bz  } becomes @code{filename}
+@item @code{filename.tbz2} becomes @code{filename.tar}
+@item @code{filename.tbz } becomes @code{filename.tar}
+@item @code{anyothername } becomes @code{anyothername.out}
+@end itemize
+If the file does not end in one of the recognised endings, 
+@code{.bz2}, @code{.bz}, 
+@code{.tbz2} or @code{.tbz}, @code{bzip2} complains that it cannot
+guess the name of the original file, and uses the original name
+with @code{.out} appended.
+
+As with compression, supplying no
+filenames causes decompression from standard input to standard output.
+
+@code{bunzip2} will correctly decompress a file which is the
+concatenation of two or more compressed files.  The result is the
+concatenation of the corresponding uncompressed files.  Integrity
+testing (@code{-t}) of concatenated compressed files is also supported.
+
+You can also compress or decompress files to the standard output by
+giving the @code{-c} flag.  Multiple files may be compressed and
+decompressed like this.  The resulting outputs are fed sequentially to
+stdout.  Compression of multiple files in this manner generates a stream
+containing multiple compressed file representations.  Such a stream
+can be decompressed correctly only by @code{bzip2} version 0.9.0 or
+later.  Earlier versions of @code{bzip2} will stop after decompressing
+the first file in the stream.
+
+@code{bzcat} (or @code{bzip2 -dc}) decompresses all specified files to
+the standard output.
+
+@code{bzip2} will read arguments from the environment variables
+@code{BZIP2} and @code{BZIP}, in that order, and will process them
+before any arguments read from the command line.  This gives a 
+convenient way to supply default arguments.
+
+Compression is always performed, even if the compressed file is slightly
+larger than the original.  Files of less than about one hundred bytes
+tend to get larger, since the compression mechanism has a constant
+overhead in the region of 50 bytes.  Random data (including the output
+of most file compressors) is coded at about 8.05 bits per byte, giving
+an expansion of around 0.5%.
+
+As a self-check for your protection, @code{bzip2} uses 32-bit CRCs to
+make sure that the decompressed version of a file is identical to the
+original.  This guards against corruption of the compressed data, and
+against undetected bugs in @code{bzip2} (hopefully very unlikely).  The
+chances of data corruption going undetected is microscopic, about one
+chance in four billion for each file processed.  Be aware, though, that
+the check occurs upon decompression, so it can only tell you that
+something is wrong.  It can't help you recover the original uncompressed
+data.  You can use @code{bzip2recover} to try to recover data from
+damaged files.
+
+Return values: 0 for a normal exit, 1 for environmental problems (file
+not found, invalid flags, I/O errors, &c), 2 to indicate a corrupt
+compressed file, 3 for an internal consistency error (eg, bug) which
+caused @code{bzip2} to panic.
+
+
+@unnumberedsubsubsec OPTIONS
+@table @code
+@item -c  --stdout
+Compress or decompress to standard output.
+@item -d  --decompress
+Force decompression.  @code{bzip2}, @code{bunzip2} and @code{bzcat} are
+really the same program, and the decision about what actions to take is
+done on the basis of which name is used.  This flag overrides that
+mechanism, and forces bzip2 to decompress.
+@item -z --compress
+The complement to @code{-d}: forces compression, regardless of the
+invokation name.
+@item -t --test
+Check integrity of the specified file(s), but don't decompress them.
+This really performs a trial decompression and throws away the result.
+@item -f --force
+Force overwrite of output files.  Normally, @code{bzip2} will not overwrite
+existing output files.  Also forces @code{bzip2} to break hard links
+to files, which it otherwise wouldn't do.
+@item -k --keep
+Keep (don't delete) input files during compression
+or decompression.
+@item -s --small
+Reduce memory usage, for compression, decompression and testing.  Files
+are decompressed and tested using a modified algorithm which only
+requires 2.5 bytes per block byte.  This means any file can be
+decompressed in 2300k of memory, albeit at about half the normal speed.
+
+During compression, @code{-s} selects a block size of 200k, which limits
+memory use to around the same figure, at the expense of your compression
+ratio.  In short, if your machine is low on memory (8 megabytes or
+less), use -s for everything.  See MEMORY MANAGEMENT below.
+@item -q --quiet
+Suppress non-essential warning messages.  Messages pertaining to
+I/O errors and other critical events will not be suppressed.
+@item -v --verbose
+Verbose mode -- show the compression ratio for each file processed.
+Further @code{-v}'s increase the verbosity level, spewing out lots of
+information which is primarily of interest for diagnostic purposes.
+@item -L --license -V --version
+Display the software version, license terms and conditions.
+@item -1 to -9
+Set the block size to 100 k, 200 k ..  900 k when compressing.  Has no
+effect when decompressing.  See MEMORY MANAGEMENT below.
+@item --
+Treats all subsequent arguments as file names, even if they start
+with a dash.  This is so you can handle files with names beginning
+with a dash, for example: @code{bzip2 -- -myfilename}.
+@item --repetitive-fast 
+@item --repetitive-best
+These flags are redundant in versions 0.9.5 and above.  They provided
+some coarse control over the behaviour of the sorting algorithm in
+earlier versions, which was sometimes useful.  0.9.5 and above have an
+improved algorithm which renders these flags irrelevant.
+@end table
+
+
+@unnumberedsubsubsec MEMORY MANAGEMENT
+
+@code{bzip2} compresses large files in blocks.  The block size affects
+both the compression ratio achieved, and the amount of memory needed for
+compression and decompression.  The flags @code{-1} through @code{-9}
+specify the block size to be 100,000 bytes through 900,000 bytes (the
+default) respectively.  At decompression time, the block size used for
+compression is read from the header of the compressed file, and
+@code{bunzip2} then allocates itself just enough memory to decompress
+the file.  Since block sizes are stored in compressed files, it follows
+that the flags @code{-1} to @code{-9} are irrelevant to and so ignored
+during decompression.
+
+Compression and decompression requirements, in bytes, can be estimated
+as:
+@example
+     Compression:   400k + ( 8 x block size )
+
+     Decompression: 100k + ( 4 x block size ), or
+                    100k + ( 2.5 x block size )
+@end example
+Larger block sizes give rapidly diminishing marginal returns.  Most of
+the compression comes from the first two or three hundred k of block
+size, a fact worth bearing in mind when using @code{bzip2} on small machines.
+It is also important to appreciate that the decompression memory
+requirement is set at compression time by the choice of block size.
+
+For files compressed with the default 900k block size, @code{bunzip2}
+will require about 3700 kbytes to decompress.  To support decompression
+of any file on a 4 megabyte machine, @code{bunzip2} has an option to
+decompress using approximately half this amount of memory, about 2300
+kbytes.  Decompression speed is also halved, so you should use this
+option only where necessary.  The relevant flag is @code{-s}.
+
+In general, try and use the largest block size memory constraints allow,
+since that maximises the compression achieved.  Compression and
+decompression speed are virtually unaffected by block size.
+
+Another significant point applies to files which fit in a single block
+-- that means most files you'd encounter using a large block size.  The
+amount of real memory touched is proportional to the size of the file,
+since the file is smaller than a block.  For example, compressing a file
+20,000 bytes long with the flag @code{-9} will cause the compressor to
+allocate around 7600k of memory, but only touch 400k + 20000 * 8 = 560
+kbytes of it.  Similarly, the decompressor will allocate 3700k but only
+touch 100k + 20000 * 4 = 180 kbytes.
+
+Here is a table which summarises the maximum memory usage for different
+block sizes.  Also recorded is the total compressed size for 14 files of
+the Calgary Text Compression Corpus totalling 3,141,622 bytes.  This
+column gives some feel for how compression varies with block size.
+These figures tend to understate the advantage of larger block sizes for
+larger files, since the Corpus is dominated by smaller files.
+@example
+          Compress   Decompress   Decompress   Corpus
+   Flag     usage      usage       -s usage     Size
+
+    -1      1200k       500k         350k      914704
+    -2      2000k       900k         600k      877703
+    -3      2800k      1300k         850k      860338
+    -4      3600k      1700k        1100k      846899
+    -5      4400k      2100k        1350k      845160
+    -6      5200k      2500k        1600k      838626
+    -7      6100k      2900k        1850k      834096
+    -8      6800k      3300k        2100k      828642
+    -9      7600k      3700k        2350k      828642
+@end example
+
+@unnumberedsubsubsec RECOVERING DATA FROM DAMAGED FILES
+
+@code{bzip2} compresses files in blocks, usually 900kbytes long.  Each
+block is handled independently.  If a media or transmission error causes
+a multi-block @code{.bz2} file to become damaged, it may be possible to
+recover data from the undamaged blocks in the file.
+
+The compressed representation of each block is delimited by a 48-bit
+pattern, which makes it possible to find the block boundaries with
+reasonable certainty.  Each block also carries its own 32-bit CRC, so
+damaged blocks can be distinguished from undamaged ones.
+
+@code{bzip2recover} is a simple program whose purpose is to search for
+blocks in @code{.bz2} files, and write each block out into its own
+@code{.bz2} file.  You can then use @code{bzip2 -t} to test the
+integrity of the resulting files, and decompress those which are
+undamaged.
+
+@code{bzip2recover} 
+takes a single argument, the name of the damaged file, 
+and writes a number of files @code{rec0001file.bz2},
+       @code{rec0002file.bz2}, etc, containing the  extracted  blocks.
+       The  output  filenames  are  designed  so  that the use of
+       wildcards in subsequent processing -- for example,  
+@code{bzip2 -dc  rec*file.bz2 > recovered_data} -- lists the files in
+       the correct order.
+
+@code{bzip2recover} should be of most use dealing with large @code{.bz2}
+       files,  as  these will contain many blocks.  It is clearly
+       futile to use it on damaged single-block  files,  since  a
+       damaged  block  cannot  be recovered.  If you wish to minimise 
+any potential data loss through media  or  transmission errors, 
+you might consider compressing with a smaller
+       block size.
+
+
+@unnumberedsubsubsec PERFORMANCE NOTES
+
+The sorting phase of compression gathers together similar strings in the
+file.  Because of this, files containing very long runs of repeated
+symbols, like "aabaabaabaab ..."  (repeated several hundred times) may
+compress more slowly than normal.  Versions 0.9.5 and above fare much
+better than previous versions in this respect.  The ratio between
+worst-case and average-case compression time is in the region of 10:1.
+For previous versions, this figure was more like 100:1.  You can use the
+@code{-vvvv} option to monitor progress in great detail, if you want.
+
+Decompression speed is unaffected by these phenomena.
+
+@code{bzip2} usually allocates several megabytes of memory to operate
+in, and then charges all over it in a fairly random fashion.  This means
+that performance, both for compressing and decompressing, is largely
+determined by the speed at which your machine can service cache misses.
+Because of this, small changes to the code to reduce the miss rate have
+been observed to give disproportionately large performance improvements.
+I imagine @code{bzip2} will perform best on machines with very large
+caches.
+
+
+@unnumberedsubsubsec CAVEATS
+
+I/O error messages are not as helpful as they could be.  @code{bzip2}
+tries hard to detect I/O errors and exit cleanly, but the details of
+what the problem is sometimes seem rather misleading.
+
+This manual page pertains to version 1.0 of @code{bzip2}.  Compressed
+data created by this version is entirely forwards and backwards
+compatible with the previous public releases, versions 0.1pl2, 0.9.0 and
+0.9.5, but with the following exception: 0.9.0 and above can correctly
+decompress multiple concatenated compressed files.  0.1pl2 cannot do
+this; it will stop after decompressing just the first file in the
+stream.
+
+@code{bzip2recover} uses 32-bit integers to represent bit positions in
+compressed files, so it cannot handle compressed files more than 512
+megabytes long.  This could easily be fixed.
+
+
+@unnumberedsubsubsec AUTHOR
+Julian Seward, @code{jseward@@acm.org}.
+
+The ideas embodied in @code{bzip2} are due to (at least) the following
+people: Michael Burrows and David Wheeler (for the block sorting
+transformation), David Wheeler (again, for the Huffman coder), Peter
+Fenwick (for the structured coding model in the original @code{bzip},
+and many refinements), and Alistair Moffat, Radford Neal and Ian Witten
+(for the arithmetic coder in the original @code{bzip}).  I am much
+indebted for their help, support and advice.  See the manual in the
+source distribution for pointers to sources of documentation.  Christian
+von Roques encouraged me to look for faster sorting algorithms, so as to
+speed up compression.  Bela Lubkin encouraged me to improve the
+worst-case compression performance.  Many people sent patches, helped
+with portability problems, lent machines, gave advice and were generally
+helpful.
+
+@end quotation
+
+
+
+
+@chapter Programming with @code{libbzip2}
+
+This chapter describes the programming interface to @code{libbzip2}.
+
+For general background information, particularly about memory
+use and performance aspects, you'd be well advised to read Chapter 2
+as well.
+
+@section Top-level structure
+
+@code{libbzip2} is a flexible library for compressing and decompressing
+data in the @code{bzip2} data format.  Although packaged as a single
+entity, it helps to regard the library as three separate parts: the low
+level interface, and the high level interface, and some utility
+functions.
+
+The structure of @code{libbzip2}'s interfaces is similar to
+that of Jean-loup Gailly's and Mark Adler's excellent @code{zlib} 
+library.
+
+All externally visible symbols have names beginning @code{BZ2_}.
+This is new in version 1.0.  The intention is to minimise pollution
+of the namespaces of library clients.
+
+@subsection Low-level summary
+
+This interface provides services for compressing and decompressing
+data in memory.  There's no provision for dealing with files, streams
+or any other I/O mechanisms, just straight memory-to-memory work.
+In fact, this part of the library can be compiled without inclusion
+of @code{stdio.h}, which may be helpful for embedded applications.
+
+The low-level part of the library has no global variables and
+is therefore thread-safe.
+
+Six routines make up the low level interface: 
+@code{BZ2_bzCompressInit}, @code{BZ2_bzCompress}, and @* @code{BZ2_bzCompressEnd}
+for compression,
+and a corresponding trio @code{BZ2_bzDecompressInit}, @* @code{BZ2_bzDecompress}
+and @code{BZ2_bzDecompressEnd} for decompression.  
+The @code{*Init} functions allocate
+memory for compression/decompression and do other
+initialisations, whilst the @code{*End} functions close down operations
+and release memory.
+
+The real work is done by @code{BZ2_bzCompress} and @code{BZ2_bzDecompress}.  
+These compress and decompress data from a user-supplied input buffer
+to a user-supplied output buffer.  These buffers can be any size;
+arbitrary quantities of data are handled by making repeated calls
+to these functions.  This is a flexible mechanism allowing a 
+consumer-pull style of activity, or producer-push, or a mixture of
+both.
+
+
+
+@subsection High-level summary
+
+This interface provides some handy wrappers around the low-level
+interface to facilitate reading and writing @code{bzip2} format
+files (@code{.bz2} files).  The routines provide hooks to facilitate
+reading files in which the @code{bzip2} data stream is embedded 
+within some larger-scale file structure, or where there are
+multiple @code{bzip2} data streams concatenated end-to-end.
+
+For reading files, @code{BZ2_bzReadOpen}, @code{BZ2_bzRead},
+@code{BZ2_bzReadClose} and @* @code{BZ2_bzReadGetUnused} are supplied.  For
+writing files, @code{BZ2_bzWriteOpen}, @code{BZ2_bzWrite} and
+@code{BZ2_bzWriteFinish} are available.
+
+As with the low-level library, no global variables are used
+so the library is per se thread-safe.  However, if I/O errors
+occur whilst reading or writing the underlying compressed files,
+you may have to consult @code{errno} to determine the cause of
+the error.  In that case, you'd need a C library which correctly
+supports @code{errno} in a multithreaded environment.
+
+To make the library a little simpler and more portable,
+@code{BZ2_bzReadOpen} and @code{BZ2_bzWriteOpen} require you to pass them file
+handles (@code{FILE*}s) which have previously been opened for reading or
+writing respectively.  That avoids portability problems associated with
+file operations and file attributes, whilst not being much of an
+imposition on the programmer.
+
+
+
+@subsection Utility functions summary
+For very simple needs, @code{BZ2_bzBuffToBuffCompress} and
+@code{BZ2_bzBuffToBuffDecompress} are provided.  These compress
+data in memory from one buffer to another buffer in a single
+function call.  You should assess whether these functions
+fulfill your memory-to-memory compression/decompression
+requirements before investing effort in understanding the more
+general but more complex low-level interface.
+
+Yoshioka Tsuneo (@code{QWF00133@@niftyserve.or.jp} /
+@code{tsuneo-y@@is.aist-nara.ac.jp}) has contributed some functions to
+give better @code{zlib} compatibility.  These functions are
+@code{BZ2_bzopen}, @code{BZ2_bzread}, @code{BZ2_bzwrite}, @code{BZ2_bzflush},
+@code{BZ2_bzclose},
+@code{BZ2_bzerror} and @code{BZ2_bzlibVersion}.  You may find these functions
+more convenient for simple file reading and writing, than those in the
+high-level interface.  These functions are not (yet) officially part of
+the library, and are minimally documented here.  If they break, you
+get to keep all the pieces.  I hope to document them properly when time
+permits.
+
+Yoshioka also contributed modifications to allow the library to be
+built as a Windows DLL.
+
+
+@section Error handling
+
+The library is designed to recover cleanly in all situations, including
+the worst-case situation of decompressing random data.  I'm not 
+100% sure that it can always do this, so you might want to add
+a signal handler to catch segmentation violations during decompression
+if you are feeling especially paranoid.  I would be interested in
+hearing more about the robustness of the library to corrupted
+compressed data.
+
+Version 1.0 is much more robust in this respect than
+0.9.0 or 0.9.5.  Investigations with Checker (a tool for 
+detecting problems with memory management, similar to Purify)
+indicate that, at least for the few files I tested, all single-bit
+errors in the decompressed data are caught properly, with no
+segmentation faults, no reads of uninitialised data and no 
+out of range reads or writes.  So it's certainly much improved,
+although I wouldn't claim it to be totally bombproof.
+
+The file @code{bzlib.h} contains all definitions needed to use
+the library.  In particular, you should definitely not include
+@code{bzlib_private.h}.
+
+In @code{bzlib.h}, the various return values are defined.  The following
+list is not intended as an exhaustive description of the circumstances 
+in which a given value may be returned -- those descriptions are given
+later.  Rather, it is intended to convey the rough meaning of each
+return value.  The first five actions are normal and not intended to 
+denote an error situation.
+@table @code
+@item BZ_OK
+The requested action was completed successfully.
+@item BZ_RUN_OK
+@itemx BZ_FLUSH_OK
+@itemx BZ_FINISH_OK
+In @code{BZ2_bzCompress}, the requested flush/finish/nothing-special action
+was completed successfully.
+@item BZ_STREAM_END
+Compression of data was completed, or the logical stream end was
+detected during decompression.
+@end table
+
+The following return values indicate an error of some kind.
+@table @code
+@item BZ_CONFIG_ERROR
+Indicates that the library has been improperly compiled on your
+platform -- a major configuration error.  Specifically, it means
+that @code{sizeof(char)}, @code{sizeof(short)} and @code{sizeof(int)}
+are not 1, 2 and 4 respectively, as they should be.  Note that the 
+library should still work properly on 64-bit platforms which follow
+the LP64 programming model -- that is, where @code{sizeof(long)}
+and @code{sizeof(void*)} are 8.  Under LP64, @code{sizeof(int)} is
+still 4, so @code{libbzip2}, which doesn't use the @code{long} type,
+is OK.
+@item BZ_SEQUENCE_ERROR
+When using the library, it is important to call the functions in the
+correct sequence and with data structures (buffers etc) in the correct
+states.  @code{libbzip2} checks as much as it can to ensure this is
+happening, and returns @code{BZ_SEQUENCE_ERROR} if not.  Code which
+complies precisely with the function semantics, as detailed below,
+should never receive this value; such an event denotes buggy code
+which you should investigate.
+@item BZ_PARAM_ERROR
+Returned when a parameter to a function call is out of range 
+or otherwise manifestly incorrect.  As with @code{BZ_SEQUENCE_ERROR},
+this denotes a bug in the client code.  The distinction between
+@code{BZ_PARAM_ERROR} and @code{BZ_SEQUENCE_ERROR} is a bit hazy, but still worth
+making.
+@item BZ_MEM_ERROR
+Returned when a request to allocate memory failed.  Note that the
+quantity of memory needed to decompress a stream cannot be determined
+until the stream's header has been read.  So @code{BZ2_bzDecompress} and
+@code{BZ2_bzRead} may return @code{BZ_MEM_ERROR} even though some of
+the compressed data has been read.  The same is not true for
+compression; once @code{BZ2_bzCompressInit} or @code{BZ2_bzWriteOpen} have
+successfully completed, @code{BZ_MEM_ERROR} cannot occur.
+@item BZ_DATA_ERROR
+Returned when a data integrity error is detected during decompression.
+Most importantly, this means when stored and computed CRCs for the
+data do not match.  This value is also returned upon detection of any
+other anomaly in the compressed data.
+@item BZ_DATA_ERROR_MAGIC
+As a special case of @code{BZ_DATA_ERROR}, it is sometimes useful to
+know when the compressed stream does not start with the correct
+magic bytes (@code{'B' 'Z' 'h'}).  
+@item BZ_IO_ERROR
+Returned by @code{BZ2_bzRead} and @code{BZ2_bzWrite} when there is an error
+reading or writing in the compressed file, and by @code{BZ2_bzReadOpen}
+and @code{BZ2_bzWriteOpen} for attempts to use a file for which the
+error indicator (viz, @code{ferror(f)}) is set.
+On receipt of @code{BZ_IO_ERROR}, the caller should consult
+@code{errno} and/or @code{perror} to acquire operating-system
+specific information about the problem.
+@item BZ_UNEXPECTED_EOF
+Returned by @code{BZ2_bzRead} when the compressed file finishes
+before the logical end of stream is detected.
+@item BZ_OUTBUFF_FULL
+Returned by @code{BZ2_bzBuffToBuffCompress} and
+@code{BZ2_bzBuffToBuffDecompress} to indicate that the output data
+will not fit into the output buffer provided.
+@end table
+
+
+
+@section Low-level interface
+
+@subsection @code{BZ2_bzCompressInit}
+@example
+typedef 
+   struct @{
+      char *next_in;
+      unsigned int avail_in;
+      unsigned int total_in_lo32;
+      unsigned int total_in_hi32;
+
+      char *next_out;
+      unsigned int avail_out;
+      unsigned int total_out_lo32;
+      unsigned int total_out_hi32;
+
+      void *state;
+
+      void *(*bzalloc)(void *,int,int);
+      void (*bzfree)(void *,void *);
+      void *opaque;
+   @} 
+   bz_stream;
+
+int BZ2_bzCompressInit ( bz_stream *strm, 
+                         int blockSize100k, 
+                         int verbosity,
+                         int workFactor );
+
+@end example
+
+Prepares for compression.  The @code{bz_stream} structure
+holds all data pertaining to the compression activity.  
+A @code{bz_stream} structure should be allocated and initialised
+prior to the call.
+The fields of @code{bz_stream}
+comprise the entirety of the user-visible data.  @code{state}
+is a pointer to the private data structures required for compression.
+
+Custom memory allocators are supported, via fields @code{bzalloc}, 
+@code{bzfree},
+and @code{opaque}.  The value 
+@code{opaque} is passed to as the first argument to
+all calls to @code{bzalloc} and @code{bzfree}, but is 
+otherwise ignored by the library.
+The call @code{bzalloc ( opaque, n, m )} is expected to return a 
+pointer @code{p} to
+@code{n * m} bytes of memory, and @code{bzfree ( opaque, p )} 
+should free
+that memory.
+
+If you don't want to use a custom memory allocator, set @code{bzalloc}, 
+@code{bzfree} and
+@code{opaque} to @code{NULL}, 
+and the library will then use the standard @code{malloc}/@code{free}
+routines.
+
+Before calling @code{BZ2_bzCompressInit}, fields @code{bzalloc}, 
+@code{bzfree} and @code{opaque} should
+be filled appropriately, as just described.  Upon return, the internal
+state will have been allocated and initialised, and @code{total_in_lo32}, 
+@code{total_in_hi32}, @code{total_out_lo32} and 
+@code{total_out_hi32} will have been set to zero.  
+These four fields are used by the library
+to inform the caller of the total amount of data passed into and out of
+the library, respectively.  You should not try to change them.
+As of version 1.0, 64-bit counts are maintained, even on 32-bit
+platforms, using the @code{_hi32} fields to store the upper 32 bits
+of the count.  So, for example, the total amount of data in
+is @code{(total_in_hi32 << 32) + total_in_lo32}.
+
+Parameter @code{blockSize100k} specifies the block size to be used for
+compression.  It should be a value between 1 and 9 inclusive, and the
+actual block size used is 100000 x this figure.  9 gives the best
+compression but takes most memory.
+
+Parameter @code{verbosity} should be set to a number between 0 and 4
+inclusive.  0 is silent, and greater numbers give increasingly verbose
+monitoring/debugging output.  If the library has been compiled with
+@code{-DBZ_NO_STDIO}, no such output will appear for any verbosity
+setting.
+
+Parameter @code{workFactor} controls how the compression phase behaves
+when presented with worst case, highly repetitive, input data.  If
+compression runs into difficulties caused by repetitive data, the
+library switches from the standard sorting algorithm to a fallback
+algorithm.  The fallback is slower than the standard algorithm by
+perhaps a factor of three, but always behaves reasonably, no matter how
+bad the input.
+
+Lower values of @code{workFactor} reduce the amount of effort the
+standard algorithm will expend before resorting to the fallback.  You
+should set this parameter carefully; too low, and many inputs will be
+handled by the fallback algorithm and so compress rather slowly, too
+high, and your average-to-worst case compression times can become very
+large.  The default value of 30 gives reasonable behaviour over a wide
+range of circumstances.
+
+Allowable values range from 0 to 250 inclusive.  0 is a special case,
+equivalent to using the default value of 30.
+
+Note that the compressed output generated is the same regardless of
+whether or not the fallback algorithm is used.
+
+Be aware also that this parameter may disappear entirely in future
+versions of the library.  In principle it should be possible to devise a
+good way to automatically choose which algorithm to use.  Such a
+mechanism would render the parameter obsolete.
+
+Possible return values:
+@display
+      @code{BZ_CONFIG_ERROR}
+         if the library has been mis-compiled
+      @code{BZ_PARAM_ERROR} 
+         if @code{strm} is @code{NULL} 
+         or @code{blockSize} < 1 or @code{blockSize} > 9
+         or @code{verbosity} < 0 or @code{verbosity} > 4
+         or @code{workFactor} < 0 or @code{workFactor} > 250
+      @code{BZ_MEM_ERROR} 
+         if not enough memory is available
+      @code{BZ_OK} 
+         otherwise
+@end display
+Allowable next actions:
+@display
+      @code{BZ2_bzCompress} 
+         if @code{BZ_OK} is returned
+      no specific action needed in case of error
+@end display
+
+@subsection @code{BZ2_bzCompress}
+@example
+   int BZ2_bzCompress ( bz_stream *strm, int action );
+@end example
+Provides more input and/or output buffer space for the library.  The
+caller maintains input and output buffers, and calls @code{BZ2_bzCompress} to
+transfer data between them.
+
+Before each call to @code{BZ2_bzCompress}, @code{next_in} should point at
+the data to be compressed, and @code{avail_in} should indicate how many
+bytes the library may read.  @code{BZ2_bzCompress} updates @code{next_in},
+@code{avail_in} and @code{total_in} to reflect the number of bytes it
+has read.
+
+Similarly, @code{next_out} should point to a buffer in which the
+compressed data is to be placed, with @code{avail_out} indicating how
+much output space is available.  @code{BZ2_bzCompress} updates
+@code{next_out}, @code{avail_out} and @code{total_out} to reflect the
+number of bytes output.
+
+You may provide and remove as little or as much data as you like on each
+call of @code{BZ2_bzCompress}.  In the limit, it is acceptable to supply and
+remove data one byte at a time, although this would be terribly
+inefficient.  You should always ensure that at least one byte of output
+space is available at each call.
+
+A second purpose of @code{BZ2_bzCompress} is to request a change of mode of the
+compressed stream.  
+
+Conceptually, a compressed stream can be in one of four states: IDLE,
+RUNNING, FLUSHING and FINISHING.  Before initialisation
+(@code{BZ2_bzCompressInit}) and after termination (@code{BZ2_bzCompressEnd}), a
+stream is regarded as IDLE.
+
+Upon initialisation (@code{BZ2_bzCompressInit}), the stream is placed in the
+RUNNING state.  Subsequent calls to @code{BZ2_bzCompress} should pass
+@code{BZ_RUN} as the requested action; other actions are illegal and
+will result in @code{BZ_SEQUENCE_ERROR}.
+
+At some point, the calling program will have provided all the input data
+it wants to.  It will then want to finish up -- in effect, asking the
+library to process any data it might have buffered internally.  In this
+state, @code{BZ2_bzCompress} will no longer attempt to read data from
+@code{next_in}, but it will want to write data to @code{next_out}.
+Because the output buffer supplied by the user can be arbitrarily small,
+the finishing-up operation cannot necessarily be done with a single call
+of @code{BZ2_bzCompress}.
+
+Instead, the calling program passes @code{BZ_FINISH} as an action to
+@code{BZ2_bzCompress}.  This changes the stream's state to FINISHING.  Any
+remaining input (ie, @code{next_in[0 .. avail_in-1]}) is compressed and
+transferred to the output buffer.  To do this, @code{BZ2_bzCompress} must be
+called repeatedly until all the output has been consumed.  At that
+point, @code{BZ2_bzCompress} returns @code{BZ_STREAM_END}, and the stream's
+state is set back to IDLE.  @code{BZ2_bzCompressEnd} should then be
+called.
+
+Just to make sure the calling program does not cheat, the library makes
+a note of @code{avail_in} at the time of the first call to
+@code{BZ2_bzCompress} which has @code{BZ_FINISH} as an action (ie, at the
+time the program has announced its intention to not supply any more
+input).  By comparing this value with that of @code{avail_in} over
+subsequent calls to @code{BZ2_bzCompress}, the library can detect any
+attempts to slip in more data to compress.  Any calls for which this is
+detected will return @code{BZ_SEQUENCE_ERROR}.  This indicates a
+programming mistake which should be corrected.
+
+Instead of asking to finish, the calling program may ask
+@code{BZ2_bzCompress} to take all the remaining input, compress it and
+terminate the current (Burrows-Wheeler) compression block.  This could
+be useful for error control purposes.  The mechanism is analogous to
+that for finishing: call @code{BZ2_bzCompress} with an action of
+@code{BZ_FLUSH}, remove output data, and persist with the
+@code{BZ_FLUSH} action until the value @code{BZ_RUN} is returned.  As
+with finishing, @code{BZ2_bzCompress} detects any attempt to provide more
+input data once the flush has begun.
+
+Once the flush is complete, the stream returns to the normal RUNNING
+state.
+
+This all sounds pretty complex, but isn't really.  Here's a table
+which shows which actions are allowable in each state, what action
+will be taken, what the next state is, and what the non-error return
+values are.  Note that you can't explicitly ask what state the
+stream is in, but nor do you need to -- it can be inferred from the
+values returned by @code{BZ2_bzCompress}.
+@display
+IDLE/@code{any}           
+      Illegal.  IDLE state only exists after @code{BZ2_bzCompressEnd} or
+      before @code{BZ2_bzCompressInit}.
+      Return value = @code{BZ_SEQUENCE_ERROR}
+
+RUNNING/@code{BZ_RUN}     
+      Compress from @code{next_in} to @code{next_out} as much as possible.
+      Next state = RUNNING
+      Return value = @code{BZ_RUN_OK}
+
+RUNNING/@code{BZ_FLUSH}   
+      Remember current value of @code{next_in}.  Compress from @code{next_in}
+      to @code{next_out} as much as possible, but do not accept any more input.  
+      Next state = FLUSHING
+      Return value = @code{BZ_FLUSH_OK}
+
+RUNNING/@code{BZ_FINISH}  
+      Remember current value of @code{next_in}.  Compress from @code{next_in}
+      to @code{next_out} as much as possible, but do not accept any more input.
+      Next state = FINISHING
+      Return value = @code{BZ_FINISH_OK}
+
+FLUSHING/@code{BZ_FLUSH}  
+      Compress from @code{next_in} to @code{next_out} as much as possible, 
+      but do not accept any more input.  
+      If all the existing input has been used up and all compressed
+      output has been removed
+         Next state = RUNNING; Return value = @code{BZ_RUN_OK}
+      else
+         Next state = FLUSHING; Return value = @code{BZ_FLUSH_OK}
+
+FLUSHING/other     
+      Illegal.
+      Return value = @code{BZ_SEQUENCE_ERROR}
+
+FINISHING/@code{BZ_FINISH}  
+      Compress from @code{next_in} to @code{next_out} as much as possible,
+      but to not accept any more input.  
+      If all the existing input has been used up and all compressed
+      output has been removed
+         Next state = IDLE; Return value = @code{BZ_STREAM_END}
+      else
+         Next state = FINISHING; Return value = @code{BZ_FINISHING}
+
+FINISHING/other
+      Illegal.
+      Return value = @code{BZ_SEQUENCE_ERROR}
+@end display
+
+That still looks complicated?  Well, fair enough.  The usual sequence
+of calls for compressing a load of data is:
+@itemize @bullet
+@item Get started with @code{BZ2_bzCompressInit}.
+@item Shovel data in and shlurp out its compressed form using zero or more
+calls of @code{BZ2_bzCompress} with action = @code{BZ_RUN}.
+@item Finish up.  
+Repeatedly call @code{BZ2_bzCompress} with action = @code{BZ_FINISH}, 
+copying out the compressed output, until @code{BZ_STREAM_END} is returned.
+@item Close up and go home.  Call @code{BZ2_bzCompressEnd}.
+@end itemize
+If the data you want to compress fits into your input buffer all
+at once, you can skip the calls of @code{BZ2_bzCompress ( ..., BZ_RUN )} and 
+just do the @code{BZ2_bzCompress ( ..., BZ_FINISH )} calls.
+
+All required memory is allocated by @code{BZ2_bzCompressInit}.  The
+compression library can accept any data at all (obviously).  So you
+shouldn't get any error return values from the @code{BZ2_bzCompress} calls.
+If you do, they will be @code{BZ_SEQUENCE_ERROR}, and indicate a bug in
+your programming.
+
+Trivial other possible return values:
+@display
+      @code{BZ_PARAM_ERROR}   
+         if @code{strm} is @code{NULL}, or @code{strm->s} is @code{NULL}
+@end display
+
+@subsection @code{BZ2_bzCompressEnd}
+@example
+int BZ2_bzCompressEnd ( bz_stream *strm );
+@end example
+Releases all memory associated with a compression stream.
+
+Possible return values:
+@display
+   @code{BZ_PARAM_ERROR}    if @code{strm} is @code{NULL} or @code{strm->s} is @code{NULL}
+   @code{BZ_OK}    otherwise
+@end display
+
+
+@subsection @code{BZ2_bzDecompressInit}
+@example
+int BZ2_bzDecompressInit ( bz_stream *strm, int verbosity, int small );
+@end example
+Prepares for decompression.  As with @code{BZ2_bzCompressInit}, a
+@code{bz_stream} record should be allocated and initialised before the
+call.  Fields @code{bzalloc}, @code{bzfree} and @code{opaque} should be
+set if a custom memory allocator is required, or made @code{NULL} for
+the normal @code{malloc}/@code{free} routines.  Upon return, the internal
+state will have been initialised, and @code{total_in} and
+@code{total_out} will be zero.
+
+For the meaning of parameter @code{verbosity}, see @code{BZ2_bzCompressInit}.
+
+If @code{small} is nonzero, the library will use an alternative
+decompression algorithm which uses less memory but at the cost of
+decompressing more slowly (roughly speaking, half the speed, but the
+maximum memory requirement drops to around 2300k).  See Chapter 2 for
+more information on memory management.
+
+Note that the amount of memory needed to decompress
+a stream cannot be determined until the stream's header has been read,
+so even if @code{BZ2_bzDecompressInit} succeeds, a subsequent
+@code{BZ2_bzDecompress} could fail with @code{BZ_MEM_ERROR}.
+
+Possible return values:
+@display
+      @code{BZ_CONFIG_ERROR}
+         if the library has been mis-compiled
+      @code{BZ_PARAM_ERROR}
+         if @code{(small != 0 && small != 1)}
+         or @code{(verbosity < 0 || verbosity > 4)}
+      @code{BZ_MEM_ERROR}
+         if insufficient memory is available
+@end display
+
+Allowable next actions:
+@display
+      @code{BZ2_bzDecompress}
+         if @code{BZ_OK} was returned
+      no specific action required in case of error
+@end display
+
+ 
+
+@subsection @code{BZ2_bzDecompress}
+@example
+int BZ2_bzDecompress ( bz_stream *strm );
+@end example
+Provides more input and/out output buffer space for the library.  The
+caller maintains input and output buffers, and uses @code{BZ2_bzDecompress}
+to transfer data between them.
+
+Before each call to @code{BZ2_bzDecompress}, @code{next_in} 
+should point at the compressed data,
+and @code{avail_in} should indicate how many bytes the library
+may read.  @code{BZ2_bzDecompress} updates @code{next_in}, @code{avail_in} 
+and @code{total_in}
+to reflect the number of bytes it has read.
+
+Similarly, @code{next_out} should point to a buffer in which the uncompressed
+output is to be placed, with @code{avail_out} indicating how much output space
+is available.  @code{BZ2_bzCompress} updates @code{next_out},
+@code{avail_out} and @code{total_out} to reflect
+the number of bytes output.
+
+You may provide and remove as little or as much data as you like on
+each call of @code{BZ2_bzDecompress}.  
+In the limit, it is acceptable to
+supply and remove data one byte at a time, although this would be
+terribly inefficient.  You should always ensure that at least one
+byte of output space is available at each call.
+
+Use of @code{BZ2_bzDecompress} is simpler than @code{BZ2_bzCompress}.
+
+You should provide input and remove output as described above, and
+repeatedly call @code{BZ2_bzDecompress} until @code{BZ_STREAM_END} is
+returned.  Appearance of @code{BZ_STREAM_END} denotes that
+@code{BZ2_bzDecompress} has detected the logical end of the compressed
+stream.  @code{BZ2_bzDecompress} will not produce @code{BZ_STREAM_END} until
+all output data has been placed into the output buffer, so once
+@code{BZ_STREAM_END} appears, you are guaranteed to have available all
+the decompressed output, and @code{BZ2_bzDecompressEnd} can safely be
+called.
+
+If case of an error return value, you should call @code{BZ2_bzDecompressEnd}
+to clean up and release memory.
+
+Possible return values:
+@display
+      @code{BZ_PARAM_ERROR}
+         if @code{strm} is @code{NULL} or @code{strm->s} is @code{NULL}
+         or @code{strm->avail_out < 1}
+      @code{BZ_DATA_ERROR}
+         if a data integrity error is detected in the compressed stream
+      @code{BZ_DATA_ERROR_MAGIC}
+         if the compressed stream doesn't begin with the right magic bytes
+      @code{BZ_MEM_ERROR}
+         if there wasn't enough memory available
+      @code{BZ_STREAM_END}
+         if the logical end of the data stream was detected and all
+         output in has been consumed, eg @code{s->avail_out > 0}
+      @code{BZ_OK}
+         otherwise
+@end display
+Allowable next actions:
+@display
+      @code{BZ2_bzDecompress}
+         if @code{BZ_OK} was returned
+      @code{BZ2_bzDecompressEnd}
+         otherwise
+@end display
+
+
+@subsection @code{BZ2_bzDecompressEnd}
+@example
+int BZ2_bzDecompressEnd ( bz_stream *strm );
+@end example
+Releases all memory associated with a decompression stream.
+
+Possible return values:
+@display
+      @code{BZ_PARAM_ERROR}
+         if @code{strm} is @code{NULL} or @code{strm->s} is @code{NULL}
+      @code{BZ_OK}
+         otherwise
+@end display
+
+Allowable next actions:
+@display
+      None.
+@end display
+
+
+@section High-level interface
+
+This interface provides functions for reading and writing 
+@code{bzip2} format files.  First, some general points.
+
+@itemize @bullet
+@item All of the functions take an @code{int*} first argument,
+  @code{bzerror}.
+  After each call, @code{bzerror} should be consulted first to determine
+  the outcome of the call.  If @code{bzerror} is @code{BZ_OK}, 
+  the call completed
+  successfully, and only then should the return value of the function
+  (if any) be consulted.  If @code{bzerror} is @code{BZ_IO_ERROR}, 
+  there was an error
+  reading/writing the underlying compressed file, and you should
+  then consult @code{errno}/@code{perror} to determine the 
+  cause of the difficulty.
+  @code{bzerror} may also be set to various other values; precise details are
+  given on a per-function basis below.
+@item If @code{bzerror} indicates an error 
+  (ie, anything except @code{BZ_OK} and @code{BZ_STREAM_END}),
+  you should immediately call @code{BZ2_bzReadClose} (or @code{BZ2_bzWriteClose},
+  depending on whether you are attempting to read or to write)
+  to free up all resources associated
+  with the stream.  Once an error has been indicated, behaviour of all calls
+  except @code{BZ2_bzReadClose} (@code{BZ2_bzWriteClose}) is undefined.  
+  The implication is that (1) @code{bzerror} should
+  be checked after each call, and (2) if @code{bzerror} indicates an error, 
+  @code{BZ2_bzReadClose} (@code{BZ2_bzWriteClose}) should then be called to clean up.
+@item The @code{FILE*} arguments passed to
+   @code{BZ2_bzReadOpen}/@code{BZ2_bzWriteOpen}  
+  should be set to binary mode.
+  Most Unix systems will do this by default, but other platforms,
+  including Windows and Mac, will not.  If you omit this, you may
+  encounter problems when moving code to new platforms.
+@item Memory allocation requests are handled by
+  @code{malloc}/@code{free}.  
+  At present
+  there is no facility for user-defined memory allocators in the file I/O
+  functions (could easily be added, though).
+@end itemize
+
+
+
+@subsection @code{BZ2_bzReadOpen}
+@example
+   typedef void BZFILE;
+
+   BZFILE *BZ2_bzReadOpen ( int *bzerror, FILE *f, 
+                            int small, int verbosity,
+                            void *unused, int nUnused );
+@end example
+Prepare to read compressed data from file handle @code{f}.  @code{f}
+should refer to a file which has been opened for reading, and for which
+the error indicator (@code{ferror(f)})is not set.  If @code{small} is 1,
+the library will try to decompress using less memory, at the expense of
+speed.
+
+For reasons explained below, @code{BZ2_bzRead} will decompress the
+@code{nUnused} bytes starting at @code{unused}, before starting to read
+from the file @code{f}.  At most @code{BZ_MAX_UNUSED} bytes may be
+supplied like this.  If this facility is not required, you should pass
+@code{NULL} and @code{0} for @code{unused} and n@code{Unused}
+respectively.
+
+For the meaning of parameters @code{small} and @code{verbosity},
+see @code{BZ2_bzDecompressInit}.
+
+The amount of memory needed to decompress a file cannot be determined
+until the file's header has been read.  So it is possible that
+@code{BZ2_bzReadOpen} returns @code{BZ_OK} but a subsequent call of
+@code{BZ2_bzRead} will return @code{BZ_MEM_ERROR}.
+
+Possible assignments to @code{bzerror}:
+@display
+      @code{BZ_CONFIG_ERROR}
+         if the library has been mis-compiled
+      @code{BZ_PARAM_ERROR}
+         if @code{f} is @code{NULL} 
+         or @code{small} is neither @code{0} nor @code{1}                 
+         or @code{(unused == NULL && nUnused != 0)}
+         or @code{(unused != NULL && !(0 <= nUnused <= BZ_MAX_UNUSED))}
+      @code{BZ_IO_ERROR}    
+         if @code{ferror(f)} is nonzero
+      @code{BZ_MEM_ERROR}   
+         if insufficient memory is available
+      @code{BZ_OK}
+         otherwise.
+@end display
+
+Possible return values:
+@display
+      Pointer to an abstract @code{BZFILE}        
+         if @code{bzerror} is @code{BZ_OK}   
+      @code{NULL}
+         otherwise
+@end display
+
+Allowable next actions:
+@display
+      @code{BZ2_bzRead}
+         if @code{bzerror} is @code{BZ_OK}   
+      @code{BZ2_bzClose} 
+         otherwise
+@end display
+
+
+@subsection @code{BZ2_bzRead}
+@example
+   int BZ2_bzRead ( int *bzerror, BZFILE *b, void *buf, int len );
+@end example
+Reads up to @code{len} (uncompressed) bytes from the compressed file 
+@code{b} into
+the buffer @code{buf}.  If the read was successful, 
+@code{bzerror} is set to @code{BZ_OK}
+and the number of bytes read is returned.  If the logical end-of-stream
+was detected, @code{bzerror} will be set to @code{BZ_STREAM_END}, 
+and the number
+of bytes read is returned.  All other @code{bzerror} values denote an error.
+
+@code{BZ2_bzRead} will supply @code{len} bytes,
+unless the logical stream end is detected
+or an error occurs.  Because of this, it is possible to detect the 
+stream end by observing when the number of bytes returned is 
+less than the number
+requested.  Nevertheless, this is regarded as inadvisable; you should
+instead check @code{bzerror} after every call and watch out for
+@code{BZ_STREAM_END}.
+
+Internally, @code{BZ2_bzRead} copies data from the compressed file in chunks
+of size @code{BZ_MAX_UNUSED} bytes
+before decompressing it.  If the file contains more bytes than strictly
+needed to reach the logical end-of-stream, @code{BZ2_bzRead} will almost certainly
+read some of the trailing data before signalling @code{BZ_SEQUENCE_END}.
+To collect the read but unused data once @code{BZ_SEQUENCE_END} has 
+appeared, call @code{BZ2_bzReadGetUnused} immediately before @code{BZ2_bzReadClose}.
+
+Possible assignments to @code{bzerror}:
+@display
+      @code{BZ_PARAM_ERROR}
+         if @code{b} is @code{NULL} or @code{buf} is @code{NULL} or @code{len < 0}
+      @code{BZ_SEQUENCE_ERROR} 
+         if @code{b} was opened with @code{BZ2_bzWriteOpen}
+      @code{BZ_IO_ERROR} 
+         if there is an error reading from the compressed file
+      @code{BZ_UNEXPECTED_EOF} 
+         if the compressed file ended before the logical end-of-stream was detected
+      @code{BZ_DATA_ERROR} 
+         if a data integrity error was detected in the compressed stream
+      @code{BZ_DATA_ERROR_MAGIC}
+         if the stream does not begin with the requisite header bytes (ie, is not 
+         a @code{bzip2} data file).  This is really a special case of @code{BZ_DATA_ERROR}.
+      @code{BZ_MEM_ERROR} 
+         if insufficient memory was available
+      @code{BZ_STREAM_END} 
+         if the logical end of stream was detected.
+      @code{BZ_OK}
+         otherwise.
+@end display
+
+Possible return values:
+@display
+      number of bytes read
+         if @code{bzerror} is @code{BZ_OK} or @code{BZ_STREAM_END}
+      undefined
+         otherwise
+@end display
+
+Allowable next actions:
+@display
+      collect data from @code{buf}, then @code{BZ2_bzRead} or @code{BZ2_bzReadClose}
+         if @code{bzerror} is @code{BZ_OK} 
+      collect data from @code{buf}, then @code{BZ2_bzReadClose} or @code{BZ2_bzReadGetUnused} 
+         if @code{bzerror} is @code{BZ_SEQUENCE_END}   
+      @code{BZ2_bzReadClose} 
+         otherwise
+@end display
+
+
+
+@subsection @code{BZ2_bzReadGetUnused}
+@example
+   void BZ2_bzReadGetUnused ( int* bzerror, BZFILE *b, 
+                              void** unused, int* nUnused );
+@end example
+Returns data which was read from the compressed file but was not needed
+to get to the logical end-of-stream.  @code{*unused} is set to the address
+of the data, and @code{*nUnused} to the number of bytes.  @code{*nUnused} will
+be set to a value between @code{0} and @code{BZ_MAX_UNUSED} inclusive.
+
+This function may only be called once @code{BZ2_bzRead} has signalled 
+@code{BZ_STREAM_END} but before @code{BZ2_bzReadClose}.
+
+Possible assignments to @code{bzerror}:
+@display
+      @code{BZ_PARAM_ERROR} 
+         if @code{b} is @code{NULL} 
+         or @code{unused} is @code{NULL} or @code{nUnused} is @code{NULL}
+      @code{BZ_SEQUENCE_ERROR} 
+         if @code{BZ_STREAM_END} has not been signalled
+         or if @code{b} was opened with @code{BZ2_bzWriteOpen}
+     @code{BZ_OK}
+         otherwise
+@end display
+
+Allowable next actions:
+@display 
+      @code{BZ2_bzReadClose}
+@end display
+
+
+@subsection @code{BZ2_bzReadClose}
+@example
+   void BZ2_bzReadClose ( int *bzerror, BZFILE *b );
+@end example
+Releases all memory pertaining to the compressed file @code{b}.  
+@code{BZ2_bzReadClose} does not call @code{fclose} on the underlying file
+handle, so you should do that yourself if appropriate.
+@code{BZ2_bzReadClose} should be called to clean up after all error
+situations.
+
+Possible assignments to @code{bzerror}:
+@display
+      @code{BZ_SEQUENCE_ERROR} 
+         if @code{b} was opened with @code{BZ2_bzOpenWrite} 
+      @code{BZ_OK} 
+         otherwise
+@end display
+
+Allowable next actions:
+@display
+      none
+@end display
+
+
+
+@subsection @code{BZ2_bzWriteOpen}
+@example
+   BZFILE *BZ2_bzWriteOpen ( int *bzerror, FILE *f, 
+                             int blockSize100k, int verbosity,
+                             int workFactor );
+@end example
+Prepare to write compressed data to file handle @code{f}.  
+@code{f} should refer to
+a file which has been opened for writing, and for which the error
+indicator (@code{ferror(f)})is not set.  
+
+For the meaning of parameters @code{blockSize100k},
+@code{verbosity} and @code{workFactor}, see
+@* @code{BZ2_bzCompressInit}.
+
+All required memory is allocated at this stage, so if the call
+completes successfully, @code{BZ_MEM_ERROR} cannot be signalled by a
+subsequent call to @code{BZ2_bzWrite}.
+
+Possible assignments to @code{bzerror}:
+@display 
+      @code{BZ_CONFIG_ERROR}
+         if the library has been mis-compiled
+      @code{BZ_PARAM_ERROR} 
+         if @code{f} is @code{NULL} 
+         or @code{blockSize100k < 1} or @code{blockSize100k > 9}
+      @code{BZ_IO_ERROR} 
+         if @code{ferror(f)} is nonzero
+      @code{BZ_MEM_ERROR} 
+         if insufficient memory is available
+      @code{BZ_OK} 
+         otherwise
+@end display
+
+Possible return values:
+@display
+      Pointer to an abstract @code{BZFILE}  
+         if @code{bzerror} is @code{BZ_OK}   
+      @code{NULL} 
+         otherwise
+@end display
+
+Allowable next actions:
+@display
+      @code{BZ2_bzWrite} 
+         if @code{bzerror} is @code{BZ_OK} 
+         (you could go directly to @code{BZ2_bzWriteClose}, but this would be pretty pointless)
+      @code{BZ2_bzWriteClose} 
+         otherwise
+@end display
+
+
+
+@subsection @code{BZ2_bzWrite}
+@example
+   void BZ2_bzWrite ( int *bzerror, BZFILE *b, void *buf, int len );
+@end example
+Absorbs @code{len} bytes from the buffer @code{buf}, eventually to be
+compressed and written to the file.
+
+Possible assignments to @code{bzerror}:
+@display
+      @code{BZ_PARAM_ERROR} 
+         if @code{b} is @code{NULL} or @code{buf} is @code{NULL} or @code{len < 0}
+      @code{BZ_SEQUENCE_ERROR} 
+         if b was opened with @code{BZ2_bzReadOpen}
+      @code{BZ_IO_ERROR} 
+         if there is an error writing the compressed file.
+      @code{BZ_OK} 
+         otherwise
+@end display
+
+
+
+
+@subsection @code{BZ2_bzWriteClose}
+@example
+   void BZ2_bzWriteClose ( int *bzerror, BZFILE* f,
+                           int abandon,
+                           unsigned int* nbytes_in,
+                           unsigned int* nbytes_out );
+
+   void BZ2_bzWriteClose64 ( int *bzerror, BZFILE* f,
+                             int abandon,
+                             unsigned int* nbytes_in_lo32,
+                             unsigned int* nbytes_in_hi32,
+                             unsigned int* nbytes_out_lo32,
+                             unsigned int* nbytes_out_hi32 );
+@end example
+
+Compresses and flushes to the compressed file all data so far supplied
+by @code{BZ2_bzWrite}.  The logical end-of-stream markers are also written, so
+subsequent calls to @code{BZ2_bzWrite} are illegal.  All memory associated 
+with the compressed file @code{b} is released.  
+@code{fflush} is called on the
+compressed file, but it is not @code{fclose}'d.
+
+If @code{BZ2_bzWriteClose} is called to clean up after an error, the only
+action is to release the memory.  The library records the error codes
+issued by previous calls, so this situation will be detected
+automatically.  There is no attempt to complete the compression
+operation, nor to @code{fflush} the compressed file.  You can force this
+behaviour to happen even in the case of no error, by passing a nonzero
+value to @code{abandon}.
+
+If @code{nbytes_in} is non-null, @code{*nbytes_in} will be set to be the
+total volume of uncompressed data handled.  Similarly, @code{nbytes_out}
+will be set to the total volume of compressed data written.  For 
+compatibility with older versions of the library, @code{BZ2_bzWriteClose}
+only yields the lower 32 bits of these counts.  Use
+@code{BZ2_bzWriteClose64} if you want the full 64 bit counts.  These
+two functions are otherwise absolutely identical.
+
+
+Possible assignments to @code{bzerror}:
+@display
+      @code{BZ_SEQUENCE_ERROR} 
+         if @code{b} was opened with @code{BZ2_bzReadOpen}
+      @code{BZ_IO_ERROR} 
+         if there is an error writing the compressed file
+      @code{BZ_OK} 
+         otherwise
+@end display
+
+@subsection Handling embedded compressed data streams
+
+The high-level library facilitates use of
+@code{bzip2} data streams which form some part of a surrounding, larger
+data stream.
+@itemize @bullet
+@item For writing, the library takes an open file handle, writes
+compressed data to it, @code{fflush}es it but does not @code{fclose} it.
+The calling application can write its own data before and after the
+compressed data stream, using that same file handle.
+@item Reading is more complex, and the facilities are not as general
+as they could be since generality is hard to reconcile with efficiency.
+@code{BZ2_bzRead} reads from the compressed file in blocks of size
+@code{BZ_MAX_UNUSED} bytes, and in doing so probably will overshoot
+the logical end of compressed stream.
+To recover this data once decompression has
+ended, call @code{BZ2_bzReadGetUnused} after the last call of @code{BZ2_bzRead}
+(the one returning @code{BZ_STREAM_END}) but before calling
+@code{BZ2_bzReadClose}.
+@end itemize
+
+This mechanism makes it easy to decompress multiple @code{bzip2}
+streams placed end-to-end.  As the end of one stream, when @code{BZ2_bzRead}
+returns @code{BZ_STREAM_END}, call @code{BZ2_bzReadGetUnused} to collect the
+unused data (copy it into your own buffer somewhere).  
+That data forms the start of the next compressed stream.
+To start uncompressing that next stream, call @code{BZ2_bzReadOpen} again,
+feeding in the unused data via the @code{unused}/@code{nUnused}
+parameters.
+Keep doing this until @code{BZ_STREAM_END} return coincides with the
+physical end of file (@code{feof(f)}).  In this situation
+@code{BZ2_bzReadGetUnused}
+will of course return no data.
+
+This should give some feel for how the high-level interface can be used.
+If you require extra flexibility, you'll have to bite the bullet and get
+to grips with the low-level interface.
+
+@subsection Standard file-reading/writing code
+Here's how you'd write data to a compressed file:
+@example @code
+FILE*   f;
+BZFILE* b;
+int     nBuf;
+char    buf[ /* whatever size you like */ ];
+int     bzerror;
+int     nWritten;
+
+f = fopen ( "myfile.bz2", "w" );
+if (!f) @{
+   /* handle error */
+@}
+b = BZ2_bzWriteOpen ( &bzerror, f, 9 );
+if (bzerror != BZ_OK) @{
+   BZ2_bzWriteClose ( b );
+   /* handle error */
+@}
+
+while ( /* condition */ ) @{
+   /* get data to write into buf, and set nBuf appropriately */
+   nWritten = BZ2_bzWrite ( &bzerror, b, buf, nBuf );
+   if (bzerror == BZ_IO_ERROR) @{ 
+      BZ2_bzWriteClose ( &bzerror, b );
+      /* handle error */
+   @}
+@}
+
+BZ2_bzWriteClose ( &bzerror, b );
+if (bzerror == BZ_IO_ERROR) @{
+   /* handle error */
+@}
+@end example
+And to read from a compressed file:
+@example
+FILE*   f;
+BZFILE* b;
+int     nBuf;
+char    buf[ /* whatever size you like */ ];
+int     bzerror;
+int     nWritten;
+
+f = fopen ( "myfile.bz2", "r" );
+if (!f) @{
+   /* handle error */
+@}
+b = BZ2_bzReadOpen ( &bzerror, f, 0, NULL, 0 );
+if (bzerror != BZ_OK) @{
+   BZ2_bzReadClose ( &bzerror, b );
+   /* handle error */
+@}
+
+bzerror = BZ_OK;
+while (bzerror == BZ_OK && /* arbitrary other conditions */) @{
+   nBuf = BZ2_bzRead ( &bzerror, b, buf, /* size of buf */ );
+   if (bzerror == BZ_OK) @{
+      /* do something with buf[0 .. nBuf-1] */
+   @}
+@}
+if (bzerror != BZ_STREAM_END) @{
+   BZ2_bzReadClose ( &bzerror, b );
+   /* handle error */
+@} else @{
+   BZ2_bzReadClose ( &bzerror );
+@}
+@end example
+
+
+
+@section Utility functions
+@subsection @code{BZ2_bzBuffToBuffCompress}
+@example
+   int BZ2_bzBuffToBuffCompress( char*         dest,
+                                 unsigned int* destLen,
+                                 char*         source,
+                                 unsigned int  sourceLen,
+                                 int           blockSize100k,
+                                 int           verbosity,
+                                 int           workFactor );
+@end example
+Attempts to compress the data in @code{source[0 .. sourceLen-1]}
+into the destination buffer, @code{dest[0 .. *destLen-1]}.
+If the destination buffer is big enough, @code{*destLen} is
+set to the size of the compressed data, and @code{BZ_OK} is
+returned.  If the compressed data won't fit, @code{*destLen}
+is unchanged, and @code{BZ_OUTBUFF_FULL} is returned.
+
+Compression in this manner is a one-shot event, done with a single call
+to this function.  The resulting compressed data is a complete
+@code{bzip2} format data stream.  There is no mechanism for making
+additional calls to provide extra input data.  If you want that kind of
+mechanism, use the low-level interface.
+
+For the meaning of parameters @code{blockSize100k}, @code{verbosity}
+and @code{workFactor}, @* see @code{BZ2_bzCompressInit}.
+
+To guarantee that the compressed data will fit in its buffer, allocate
+an output buffer of size 1% larger than the uncompressed data, plus
+six hundred extra bytes.
+
+@code{BZ2_bzBuffToBuffDecompress} will not write data at or
+beyond @code{dest[*destLen]}, even in case of buffer overflow.
+
+Possible return values:
+@display
+      @code{BZ_CONFIG_ERROR}
+         if the library has been mis-compiled
+      @code{BZ_PARAM_ERROR} 
+         if @code{dest} is @code{NULL} or @code{destLen} is @code{NULL}
+         or @code{blockSize100k < 1} or @code{blockSize100k > 9}
+         or @code{verbosity < 0} or @code{verbosity > 4} 
+         or @code{workFactor < 0} or @code{workFactor > 250}
+      @code{BZ_MEM_ERROR}
+         if insufficient memory is available 
+      @code{BZ_OUTBUFF_FULL}
+         if the size of the compressed data exceeds @code{*destLen}
+      @code{BZ_OK} 
+         otherwise
+@end display
+
+
+
+@subsection @code{BZ2_bzBuffToBuffDecompress}
+@example
+   int BZ2_bzBuffToBuffDecompress ( char*         dest,
+                                    unsigned int* destLen,
+                                    char*         source,
+                                    unsigned int  sourceLen,
+                                    int           small,
+                                    int           verbosity );
+@end example
+Attempts to decompress the data in @code{source[0 .. sourceLen-1]}
+into the destination buffer, @code{dest[0 .. *destLen-1]}.
+If the destination buffer is big enough, @code{*destLen} is
+set to the size of the uncompressed data, and @code{BZ_OK} is
+returned.  If the compressed data won't fit, @code{*destLen}
+is unchanged, and @code{BZ_OUTBUFF_FULL} is returned.
+
+@code{source} is assumed to hold a complete @code{bzip2} format
+data stream.  @* @code{BZ2_bzBuffToBuffDecompress} tries to decompress
+the entirety of the stream into the output buffer.
+
+For the meaning of parameters @code{small} and @code{verbosity},
+see @code{BZ2_bzDecompressInit}.
+
+Because the compression ratio of the compressed data cannot be known in
+advance, there is no easy way to guarantee that the output buffer will
+be big enough.  You may of course make arrangements in your code to
+record the size of the uncompressed data, but such a mechanism is beyond
+the scope of this library.
+
+@code{BZ2_bzBuffToBuffDecompress} will not write data at or
+beyond @code{dest[*destLen]}, even in case of buffer overflow.
+
+Possible return values:
+@display
+      @code{BZ_CONFIG_ERROR}
+         if the library has been mis-compiled
+      @code{BZ_PARAM_ERROR} 
+         if @code{dest} is @code{NULL} or @code{destLen} is @code{NULL}
+         or @code{small != 0 && small != 1}
+         or @code{verbosity < 0} or @code{verbosity > 4} 
+      @code{BZ_MEM_ERROR}
+         if insufficient memory is available 
+      @code{BZ_OUTBUFF_FULL}
+         if the size of the compressed data exceeds @code{*destLen}
+      @code{BZ_DATA_ERROR}
+         if a data integrity error was detected in the compressed data
+      @code{BZ_DATA_ERROR_MAGIC}
+         if the compressed data doesn't begin with the right magic bytes
+      @code{BZ_UNEXPECTED_EOF}
+         if the compressed data ends unexpectedly
+      @code{BZ_OK} 
+         otherwise
+@end display
+
+
+
+@section @code{zlib} compatibility functions
+Yoshioka Tsuneo has contributed some functions to
+give better @code{zlib} compatibility.  These functions are
+@code{BZ2_bzopen}, @code{BZ2_bzread}, @code{BZ2_bzwrite}, @code{BZ2_bzflush},
+@code{BZ2_bzclose},
+@code{BZ2_bzerror} and @code{BZ2_bzlibVersion}.
+These functions are not (yet) officially part of
+the library.  If they break, you get to keep all the pieces.
+Nevertheless, I think they work ok.
+@example
+typedef void BZFILE;
+
+const char * BZ2_bzlibVersion ( void );
+@end example
+Returns a string indicating the library version.
+@example
+BZFILE * BZ2_bzopen  ( const char *path, const char *mode );
+BZFILE * BZ2_bzdopen ( int        fd,    const char *mode );
+@end example
+Opens a @code{.bz2} file for reading or writing, using either its name
+or a pre-existing file descriptor. 
+Analogous to @code{fopen} and @code{fdopen}.
+@example         
+int BZ2_bzread  ( BZFILE* b, void* buf, int len );
+int BZ2_bzwrite ( BZFILE* b, void* buf, int len );
+@end example
+Reads/writes data from/to a previously opened @code{BZFILE}.
+Analogous to @code{fread} and @code{fwrite}.
+@example
+int  BZ2_bzflush ( BZFILE* b );
+void BZ2_bzclose ( BZFILE* b );
+@end example
+Flushes/closes a @code{BZFILE}.  @code{BZ2_bzflush} doesn't actually do
+anything.  Analogous to @code{fflush} and @code{fclose}.
+
+@example 
+const char * BZ2_bzerror ( BZFILE *b, int *errnum )
+@end example
+Returns a string describing the more recent error status of
+@code{b}, and also sets @code{*errnum} to its numerical value.
+
+
+@section Using the library in a @code{stdio}-free environment
+
+@subsection Getting rid of @code{stdio}
+
+In a deeply embedded application, you might want to use just
+the memory-to-memory functions.  You can do this conveniently
+by compiling the library with preprocessor symbol @code{BZ_NO_STDIO}
+defined.  Doing this gives you a library containing only the following
+eight functions:
+
+@code{BZ2_bzCompressInit}, @code{BZ2_bzCompress}, @code{BZ2_bzCompressEnd} @*
+@code{BZ2_bzDecompressInit}, @code{BZ2_bzDecompress}, @code{BZ2_bzDecompressEnd} @*
+@code{BZ2_bzBuffToBuffCompress}, @code{BZ2_bzBuffToBuffDecompress}
+
+When compiled like this, all functions will ignore @code{verbosity}
+settings.
+
+@subsection Critical error handling
+@code{libbzip2} contains a number of internal assertion checks which
+should, needless to say, never be activated.  Nevertheless, if an
+assertion should fail, behaviour depends on whether or not the library
+was compiled with @code{BZ_NO_STDIO} set.
+
+For a normal compile, an assertion failure yields the message
+@example
+   bzip2/libbzip2: internal error number N.
+   This is a bug in bzip2/libbzip2, 1.0 of 21-Mar-2000.
+   Please report it to me at: jseward@@acm.org.  If this happened
+   when you were using some program which uses libbzip2 as a
+   component, you should also report this bug to the author(s)
+   of that program.  Please make an effort to report this bug;
+   timely and accurate bug reports eventually lead to higher
+   quality software.  Thanks.  Julian Seward, 21 March 2000.
+@end example
+where @code{N} is some error code number.  @code{exit(3)}
+is then called.
+
+For a @code{stdio}-free library, assertion failures result
+in a call to a function declared as:
+@example
+   extern void bz_internal_error ( int errcode );
+@end example
+The relevant code is passed as a parameter.  You should supply
+such a function.
+
+In either case, once an assertion failure has occurred, any 
+@code{bz_stream} records involved can be regarded as invalid.
+You should not attempt to resume normal operation with them.
+
+You may, of course, change critical error handling to suit
+your needs.  As I said above, critical errors indicate bugs
+in the library and should not occur.  All "normal" error
+situations are indicated via error return codes from functions,
+and can be recovered from.
+
+
+@section Making a Windows DLL
+Everything related to Windows has been contributed by Yoshioka Tsuneo
+@* (@code{QWF00133@@niftyserve.or.jp} /
+@code{tsuneo-y@@is.aist-nara.ac.jp}), so you should send your queries to
+him (but perhaps Cc: me, @code{jseward@@acm.org}).
+
+My vague understanding of what to do is: using Visual C++ 5.0,
+open the project file @code{libbz2.dsp}, and build.  That's all.
+
+If you can't
+open the project file for some reason, make a new one, naming these files:
+@code{blocksort.c}, @code{bzlib.c}, @code{compress.c}, 
+@code{crctable.c}, @code{decompress.c}, @code{huffman.c}, @*
+@code{randtable.c} and @code{libbz2.def}.  You will also need
+to name the header files @code{bzlib.h} and @code{bzlib_private.h}.
+
+If you don't use VC++, you may need to define the proprocessor symbol
+@code{_WIN32}. 
+
+Finally, @code{dlltest.c} is a sample program using the DLL.  It has a
+project file, @code{dlltest.dsp}.
+
+If you just want a makefile for Visual C, have a look at
+@code{makefile.msc}.
+
+Be aware that if you compile @code{bzip2} itself on Win32, you must set
+@code{BZ_UNIX} to 0 and @code{BZ_LCCWIN32} to 1, in the file
+@code{bzip2.c}, before compiling.  Otherwise the resulting binary won't
+work correctly.
+
+I haven't tried any of this stuff myself, but it all looks plausible.
+
+
+
+@chapter Miscellanea
+
+These are just some random thoughts of mine.  Your mileage may
+vary.
+
+@section Limitations of the compressed file format
+@code{bzip2-1.0}, @code{0.9.5} and @code{0.9.0}
+use exactly the same file format as the previous
+version, @code{bzip2-0.1}.  This decision was made in the interests of
+stability.  Creating yet another incompatible compressed file format
+would create further confusion and disruption for users.
+
+Nevertheless, this is not a painless decision.  Development
+work since the release of @code{bzip2-0.1} in August 1997
+has shown complexities in the file format which slow down
+decompression and, in retrospect, are unnecessary.  These are:
+@itemize @bullet
+@item The run-length encoder, which is the first of the 
+      compression transformations, is entirely irrelevant.
+      The original purpose was to protect the sorting algorithm
+      from the very worst case input: a string of repeated
+      symbols.  But algorithm steps Q6a and Q6b in the original
+      Burrows-Wheeler technical report (SRC-124) show how
+      repeats can be handled without difficulty in block
+      sorting.
+@item The randomisation mechanism doesn't really need to be
+      there.  Udi Manber and Gene Myers published a suffix
+      array construction algorithm a few years back, which
+      can be employed to sort any block, no matter how 
+      repetitive, in O(N log N) time.  Subsequent work by
+      Kunihiko Sadakane has produced a derivative O(N (log N)^2) 
+      algorithm which usually outperforms the Manber-Myers
+      algorithm.
+
+      I could have changed to Sadakane's algorithm, but I find
+      it to be slower than @code{bzip2}'s existing algorithm for
+      most inputs, and the randomisation mechanism protects
+      adequately against bad cases.  I didn't think it was
+      a good tradeoff to make.  Partly this is due to the fact
+      that I was not flooded with email complaints about
+      @code{bzip2-0.1}'s performance on repetitive data, so
+      perhaps it isn't a problem for real inputs.
+
+      Probably the best long-term solution,
+      and the one I have incorporated into 0.9.5 and above,
+      is to use the existing sorting
+      algorithm initially, and fall back to a O(N (log N)^2)
+      algorithm if the standard algorithm gets into difficulties.
+@item The compressed file format was never designed to be
+      handled by a library, and I have had to jump though
+      some hoops to produce an efficient implementation of
+      decompression.  It's a bit hairy.  Try passing
+      @code{decompress.c} through the C preprocessor 
+      and you'll see what I mean.  Much of this complexity
+      could have been avoided if the compressed size of
+      each block of data was recorded in the data stream.
+@item An Adler-32 checksum, rather than a CRC32 checksum,
+      would be faster to compute.
+@end itemize
+It would be fair to say that the @code{bzip2} format was frozen
+before I properly and fully understood the performance
+consequences of doing so.
+
+Improvements which I was able to incorporate into
+0.9.0, despite using the same file format, are:
+@itemize @bullet
+@item Single array implementation of the inverse BWT.  This
+      significantly speeds up decompression, presumably
+      because it reduces the number of cache misses.
+@item Faster inverse MTF transform for large MTF values.  The
+      new implementation is based on the notion of sliding blocks
+      of values.
+@item @code{bzip2-0.9.0} now reads and writes files with @code{fread}
+      and @code{fwrite}; version 0.1 used @code{putc} and @code{getc}.
+      Duh!  Well, you live and learn.
+
+@end itemize
+Further ahead, it would be nice 
+to be able to do random access into files.  This will 
+require some careful design of compressed file formats.
+
+
+
+@section Portability issues
+After some consideration, I have decided not to use
+GNU @code{autoconf} to configure 0.9.5 or 1.0.
+
+@code{autoconf}, admirable and wonderful though it is, 
+mainly assists with portability problems between Unix-like
+platforms.  But @code{bzip2} doesn't have much in the way
+of portability problems on Unix; most of the difficulties appear
+when porting to the Mac, or to Microsoft's operating systems.
+@code{autoconf} doesn't help in those cases, and brings in a 
+whole load of new complexity.
+
+Most people should be able to compile the library and program
+under Unix straight out-of-the-box, so to speak, especially 
+if you have a version of GNU C available.
+
+There are a couple of @code{__inline__} directives in the code.  GNU C
+(@code{gcc}) should be able to handle them.  If you're not using
+GNU C, your C compiler shouldn't see them at all.
+If your compiler does, for some reason, see them and doesn't
+like them, just @code{#define} @code{__inline__} to be @code{/* */}.  One
+easy way to do this is to compile with the flag @code{-D__inline__=}, 
+which should be understood by most Unix compilers.
+
+If you still have difficulties, try compiling with the macro
+@code{BZ_STRICT_ANSI} defined.  This should enable you to build the
+library in a strictly ANSI compliant environment.  Building the program
+itself like this is dangerous and not supported, since you remove
+@code{bzip2}'s checks against compressing directories, symbolic links,
+devices, and other not-really-a-file entities.  This could cause
+filesystem corruption!
+
+One other thing: if you create a @code{bzip2} binary for public
+distribution, please try and link it statically (@code{gcc -s}).  This
+avoids all sorts of library-version issues that others may encounter
+later on.
+
+If you build @code{bzip2} on Win32, you must set @code{BZ_UNIX} to 0 and
+@code{BZ_LCCWIN32} to 1, in the file @code{bzip2.c}, before compiling.
+Otherwise the resulting binary won't work correctly.
+
+
+
+@section Reporting bugs
+I tried pretty hard to make sure @code{bzip2} is
+bug free, both by design and by testing.  Hopefully
+you'll never need to read this section for real.
+
+Nevertheless, if @code{bzip2} dies with a segmentation
+fault, a bus error or an internal assertion failure, it
+will ask you to email me a bug report.  Experience with
+version 0.1 shows that almost all these problems can
+be traced to either compiler bugs or hardware problems.
+@itemize @bullet
+@item
+Recompile the program with no optimisation, and see if it
+works.  And/or try a different compiler.
+I heard all sorts of stories about various flavours
+of GNU C (and other compilers) generating bad code for
+@code{bzip2}, and I've run across two such examples myself.
+
+2.7.X versions of GNU C are known to generate bad code from
+time to time, at high optimisation levels.  
+If you get problems, try using the flags
+@code{-O2} @code{-fomit-frame-pointer} @code{-fno-strength-reduce}.
+You should specifically @emph{not} use @code{-funroll-loops}.
+
+You may notice that the Makefile runs six tests as part of
+the build process.  If the program passes all of these, it's
+a pretty good (but not 100%) indication that the compiler has
+done its job correctly.
+@item
+If @code{bzip2} crashes randomly, and the crashes are not
+repeatable, you may have a flaky memory subsystem.  @code{bzip2}
+really hammers your memory hierarchy, and if it's a bit marginal,
+you may get these problems.  Ditto if your disk or I/O subsystem
+is slowly failing.  Yup, this really does happen.
+
+Try using a different machine of the same type, and see if
+you can repeat the problem.
+@item This isn't really a bug, but ... If @code{bzip2} tells
+you your file is corrupted on decompression, and you
+obtained the file via FTP, there is a possibility that you
+forgot to tell FTP to do a binary mode transfer.  That absolutely
+will cause the file to be non-decompressible.  You'll have to transfer
+it again.
+@end itemize
+
+If you've incorporated @code{libbzip2} into your own program
+and are getting problems, please, please, please, check that the 
+parameters you are passing in calls to the library, are
+correct, and in accordance with what the documentation says
+is allowable.  I have tried to make the library robust against
+such problems, but I'm sure I haven't succeeded.
+
+Finally, if the above comments don't help, you'll have to send
+me a bug report.  Now, it's just amazing how many people will 
+send me a bug report saying something like
+@display
+   bzip2 crashed with segmentation fault on my machine
+@end display
+and absolutely nothing else.  Needless to say, a such a report
+is @emph{totally, utterly, completely and comprehensively 100% useless; 
+a waste of your time, my time, and net bandwidth}.
+With no details at all, there's no way I can possibly begin
+to figure out what the problem is.
+
+The rules of the game are: facts, facts, facts.  Don't omit
+them because "oh, they won't be relevant".  At the bare 
+minimum:
+@display
+   Machine type.  Operating system version.  
+   Exact version of @code{bzip2} (do @code{bzip2 -V}).  
+   Exact version of the compiler used.  
+   Flags passed to the compiler.
+@end display
+However, the most important single thing that will help me is
+the file that you were trying to compress or decompress at the
+time the problem happened.  Without that, my ability to do anything
+more than speculate about the cause, is limited.
+
+Please remember that I connect to the Internet with a modem, so
+you should contact me before mailing me huge files.
+
+
+@section Did you get the right package?
+
+@code{bzip2} is a resource hog.  It soaks up large amounts of CPU cycles
+and memory.  Also, it gives very large latencies.  In the worst case, you
+can feed many megabytes of uncompressed data into the library before
+getting any compressed output, so this probably rules out applications
+requiring interactive behaviour.
+
+These aren't faults of my implementation, I hope, but more
+an intrinsic property of the Burrows-Wheeler transform (unfortunately).  
+Maybe this isn't what you want.
+
+If you want a compressor and/or library which is faster, uses less
+memory but gets pretty good compression, and has minimal latency,
+consider Jean-loup
+Gailly's and Mark Adler's work, @code{zlib-1.1.2} and
+@code{gzip-1.2.4}.  Look for them at
+
+@code{http://www.cdrom.com/pub/infozip/zlib} and
+@code{http://www.gzip.org} respectively.
+
+For something faster and lighter still, you might try Markus F X J
+Oberhumer's @code{LZO} real-time compression/decompression library, at
+@* @code{http://wildsau.idv.uni-linz.ac.at/mfx/lzo.html}.
+
+If you want to use the @code{bzip2} algorithms to compress small blocks
+of data, 64k bytes or smaller, for example on an on-the-fly disk
+compressor, you'd be well advised not to use this library.  Instead,
+I've made a special library tuned for that kind of use.  It's part of
+@code{e2compr-0.40}, an on-the-fly disk compressor for the Linux
+@code{ext2} filesystem.  Look at
+@code{http://www.netspace.net.au/~reiter/e2compr}.
+
+
+
+@section Testing
+
+A record of the tests I've done.
+
+First, some data sets:
+@itemize @bullet
+@item B: a directory containing 6001 files, one for every length in the
+      range 0 to 6000 bytes.  The files contain random lowercase
+      letters.  18.7 megabytes.
+@item H: my home directory tree.  Documents, source code, mail files,
+      compressed data.  H contains B, and also a directory of 
+      files designed as boundary cases for the sorting; mostly very
+      repetitive, nasty files.  565 megabytes.
+@item A: directory tree holding various applications built from source:
+      @code{egcs}, @code{gcc-2.8.1}, KDE, GTK, Octave, etc.
+      2200 megabytes.
+@end itemize
+The tests conducted are as follows.  Each test means compressing 
+(a copy of) each file in the data set, decompressing it and
+comparing it against the original.
+
+First, a bunch of tests with block sizes and internal buffer
+sizes set very small, 
+to detect any problems with the
+blocking and buffering mechanisms.  
+This required modifying the source code so as to try to 
+break it.
+@enumerate
+@item Data set H, with
+      buffer size of 1 byte, and block size of 23 bytes.
+@item Data set B, buffer sizes 1 byte, block size 1 byte.
+@item As (2) but small-mode decompression.
+@item As (2) with block size 2 bytes.
+@item As (2) with block size 3 bytes.
+@item As (2) with block size 4 bytes.
+@item As (2) with block size 5 bytes.
+@item As (2) with block size 6 bytes and small-mode decompression.
+@item H with buffer size of 1 byte, but normal block
+      size (up to 900000 bytes).
+@end enumerate
+Then some tests with unmodified source code.
+@enumerate
+@item H, all settings normal.
+@item As (1), with small-mode decompress.
+@item H, compress with flag @code{-1}.
+@item H, compress with flag @code{-s}, decompress with flag @code{-s}.
+@item Forwards compatibility: H, @code{bzip2-0.1pl2} compressing,
+      @code{bzip2-0.9.5} decompressing, all settings normal.
+@item Backwards compatibility:  H, @code{bzip2-0.9.5} compressing,
+      @code{bzip2-0.1pl2} decompressing, all settings normal.
+@item Bigger tests: A, all settings normal.
+@item As (7), using the fallback (Sadakane-like) sorting algorithm.
+@item As (8), compress with flag @code{-1}, decompress with flag
+      @code{-s}.
+@item H, using the fallback sorting algorithm.
+@item Forwards compatibility: A, @code{bzip2-0.1pl2} compressing,
+      @code{bzip2-0.9.5} decompressing, all settings normal.
+@item Backwards compatibility:  A, @code{bzip2-0.9.5} compressing,
+      @code{bzip2-0.1pl2} decompressing, all settings normal.
+@item Misc test: about 400 megabytes of @code{.tar} files with
+      @code{bzip2} compiled with Checker (a memory access error
+       detector, like Purify).
+@item Misc tests to make sure it builds and runs ok on non-Linux/x86
+      platforms.
+@end enumerate
+These tests were conducted on a 225 MHz IDT WinChip machine, running
+Linux 2.0.36.  They represent nearly a week of continuous computation.
+All tests completed successfully.
+
+
+@section Further reading
+@code{bzip2} is not research work, in the sense that it doesn't present
+any new ideas.  Rather, it's an engineering exercise based on existing
+ideas.
+
+Four documents describe essentially all the ideas behind @code{bzip2}:
+@example
+Michael Burrows and D. J. Wheeler:
+  "A block-sorting lossless data compression algorithm"
+   10th May 1994. 
+   Digital SRC Research Report 124.
+   ftp://ftp.digital.com/pub/DEC/SRC/research-reports/SRC-124.ps.gz
+   If you have trouble finding it, try searching at the
+   New Zealand Digital Library, http://www.nzdl.org.
+
+Daniel S. Hirschberg and Debra A. LeLewer
+  "Efficient Decoding of Prefix Codes"
+   Communications of the ACM, April 1990, Vol 33, Number 4.
+   You might be able to get an electronic copy of this
+      from the ACM Digital Library.
+
+David J. Wheeler
+   Program bred3.c and accompanying document bred3.ps.
+   This contains the idea behind the multi-table Huffman
+   coding scheme.
+   ftp://ftp.cl.cam.ac.uk/users/djw3/
+
+Jon L. Bentley and Robert Sedgewick
+  "Fast Algorithms for Sorting and Searching Strings"
+   Available from Sedgewick's web page,
+   www.cs.princeton.edu/~rs
+@end example
+The following paper gives valuable additional insights into the
+algorithm, but is not immediately the basis of any code
+used in bzip2.
+@example
+Peter Fenwick:
+   Block Sorting Text Compression
+   Proceedings of the 19th Australasian Computer Science Conference,
+     Melbourne, Australia.  Jan 31 - Feb 2, 1996.
+   ftp://ftp.cs.auckland.ac.nz/pub/peter-f/ACSC96paper.ps
+@end example
+Kunihiko Sadakane's sorting algorithm, mentioned above,
+is available from:
+@example
+http://naomi.is.s.u-tokyo.ac.jp/~sada/papers/Sada98b.ps.gz
+@end example
+The Manber-Myers suffix array construction
+algorithm is described in a paper
+available from:
+@example
+http://www.cs.arizona.edu/people/gene/PAPERS/suffix.ps
+@end example
+Finally, the following paper documents some recent investigations
+I made into the performance of sorting algorithms:
+@example
+Julian Seward:
+   On the Performance of BWT Sorting Algorithms
+   Proceedings of the IEEE Data Compression Conference 2000
+     Snowbird, Utah.  28-30 March 2000.
+@end example
+
+
+@contents
+
+@bye
+
diff -Nru bzip2-1.0.1/doc/bzip2recover.1 bzip2-1.0.1.new/doc/bzip2recover.1
--- bzip2-1.0.1/doc/bzip2recover.1      Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/doc/bzip2recover.1  Sat Jun 24 20:13:06 2000
@@ -0,0 +1 @@
+.so bzip2.1
\ No newline at end of file
diff -Nru bzip2-1.0.1/doc/pl/Makefile.am bzip2-1.0.1.new/doc/pl/Makefile.am
--- bzip2-1.0.1/doc/pl/Makefile.am      Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/doc/pl/Makefile.am  Sat Jun 24 20:13:06 2000
@@ -0,0 +1,4 @@
+
+mandir = @mandir@/pl
+man_MANS = bzip2.1 bunzip2.1 bzcat.1 bzip2recover.1
+
diff -Nru bzip2-1.0.1/doc/pl/bunzip2.1 bzip2-1.0.1.new/doc/pl/bunzip2.1
--- bzip2-1.0.1/doc/pl/bunzip2.1        Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/doc/pl/bunzip2.1    Sat Jun 24 20:13:06 2000
@@ -0,0 +1 @@
+.so bzip2.1
\ No newline at end of file
diff -Nru bzip2-1.0.1/doc/pl/bzcat.1 bzip2-1.0.1.new/doc/pl/bzcat.1
--- bzip2-1.0.1/doc/pl/bzcat.1  Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/doc/pl/bzcat.1      Sat Jun 24 20:13:06 2000
@@ -0,0 +1 @@
+.so bzip2.1
\ No newline at end of file
diff -Nru bzip2-1.0.1/doc/pl/bzip2.1 bzip2-1.0.1.new/doc/pl/bzip2.1
--- bzip2-1.0.1/doc/pl/bzip2.1  Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/doc/pl/bzip2.1      Sat Jun 24 20:13:06 2000
@@ -0,0 +1,384 @@
+.\" T³umaczenie  Maciej Wojciechowski     wojciech@staszic.waw.pl
+.PU
+.TH bzip2 1 "" "" "wersja 1.0"
+.SH NAZWA
+bzip2, bunzip2 \- sortuj±cy bloki kompresor/dekompresor plików, v1.0
+.br
+bzcat \- dekompresuje pliki na standardowe wyj¶cie
+.br
+bzip2recover \- odzyskuje dane ze zniszczonych archiwów bzip2
+.SH SK£ADNIA
+.ll +8
+.B bzip2
+.RB [ \-cdfkqstvzVL123456789 ]
+.RI [ nazwy_plików \&...]
+.ll -8
+.br
+.B bunzip2
+.RB [ \-fkvsVL ]
+.RI [ nazwy_plików \&...]
+.br
+.B bzcat
+.RB [ \-s ]
+.RI [ nazwy_plików \&...]
+.br
+.B bzip2recover
+.I nazwa_pliku
+.SH OPIS
+.I bzip2
+kompresuje pliki u¿ywaj±c algorytmu sortowania bloków Burrowsa-Wheelera i 
+kodu Huffmana. Kompresja jest generalnie sporo lepsza od konwencjonalnych 
+kompresorów opartych o metodê LZ77/LZ78, i jest porównywalna z 
+osi±gniêciami statystycznych kompresorów z rodziny PPM.
+
+Opcje linii poleceñ s± w wiêkszo¶ci bardzo podobne do tych z
+.IR "GNU gzip" ,
+ale nie s± identyczne.
+
+.I bzip2
+oczekuje listy plików towarzysz±cych parametrom linii poleceñ. Ka¿dy plik jest 
+zastêpowany przez swoj± skompresowan± wersjê, z nazw± 
+"oryginalny_plik.bz2". Ka¿dy skompresowany plik ma ten sam czas modyfikacji, 
+uprawnienia i, je¶li to mo¿liwe, w³a¶ciciela co orygina³, po to, aby te 
+ustawienia mog³y zostaæ odtworzone podczas dekompresji. Utrzymywanie nazwy 
+plików nie jest do koñca dok³adne w tym sensie, ¿e nie ma mo¿liwo¶ci 
+przetrzymywania daty, uprawnieñ, w³a¶ciciela i nazw plików na systemach, na 
+których brakuje tych mo¿liwo¶ci lub maj± ograniczenia co do d³ugo¶ci nazwy, 
+tak np. jak MS-DOS.
+
+.I bzip2
+i
+.I bunzip2
+standardowo nie nadpisuj± istniej±cych ju¿ plików. Je¶li chcesz aby to 
+robi³y, musisz u¿yæ parametru \-f.
+
+Je¶li nie podano ¿adnej nazwy pliku,
+.I bzip2
+kompresuje ze standardowego wej¶cia na standardowe wyj¶cie. Odmiawia wówczas
+wypisywania skompresowanego wyj¶cie na terminal, gdy¿ by³oby to
+ca³kiem niezrozumia³e i przez to bez wiêkszego sensu.
+
+.I bunzip2
+(lub
+.IR bzip2 \-d ) 
+dekompresuje wszystkie podane pliki. Pliki, które nie by³y 
+utworzone przez
+.I bzip2
+zostan± wykryte i zignorowane, a na ekranie pojawi siê komunikat 
+ostrzegawczy.
+.I bzip2
+próbuje zgadn±æ nazwê dla dekompresowanego pliku w nastêpuj±cy sposób:
+.nf
+       nazwa_pliku.bz2    staje siê   nazwa_pliku
+       nazwa_pliku.bz     staje siê   nazwa_pliku
+       nazwa_pliku.tbz2   staje siê   nazwa_pliku.tar
+       nazwa_pliku.tbz    staje siê   nazwa_pliku.tar
+       inna_nazwa        staje siê   inna_nazwa.out
+.fi
+Je¶li plik nie ma jednego z nastêpuj±cych rozpoznawalnych rozszerzeñ,
+.IR .bz2 , 
+.IR .bz , 
+.I .tbz2
+lub
+.IR .tbz ,
+to
+.I bzip2 
+napisze, ¿e nie mo¿e zgadn±æ nazwy pierwotnego pliku, i u¿yje
+oryginalnej nazwy z dodanym rozszerzeniem
+.IR .out .
+
+Tak jak kompresja, nie posiadaj±ca ¿adnych plików, powoduje kompresjê ze 
+standardowego wej¶cia na standardowe wyj¶cie.
+
+.I bunzip2 
+poprawnie zdekompresuje plik, który jest po³aczeniem dwóch lub wiêcej 
+skompresowanych plików. Rezultatem jest po³±czony odpowiedni 
+nieskompresowany plik. Obs³ugiwane jest równie¿ sprawdzanie spójno¶ci
+(\-t) po³±czonych skompresowanych plików.
+
+Mo¿esz równie¿ kompresowaæ lub dekompresowaæ pliki na standardowe wyj¶cie 
+u¿ywaj±c parametru \-c. W ten w³a¶nie sposób mo¿na przeprowadzaæ kompresjê
+wielu plików równocze¶nie.
+Powsta³e wyniki s± przesy³ane sekwencyjnie na standardowe wyj¶cie.
+W ten sposób kompresja wielu plików generuje strumieñ 
+zawieraj±cy reprezentacje kilku skompresowanych plików. Taki strumieñ mo¿e 
+byæ zdekompresowany poprawnie tylko przez 
+.I bzip2
+w wersji 0.9.0 lub pó¼niejszej. Wcze¶niejsze wersje
+.I bzip2
+zatrzymaj± siê po zdekmpresowaniu pierwszego pliku w strumieniu.
+
+.I bzcat
+(lub
+.I bzip2 -dc) 
+dekompresuje wszystkie wybrane pliki na standardowe wyj¶cie.
+
+.I bzip2
+czyta argumenty ze zmiennych ¶rodowiskowych
+.I BZIP2
+i
+.I BZIP,
+w podanej kolejno¶ci, i przetwarza je przed jakimikolwiek argumentami 
+przeczytanymi z linii poleceñ. To dobra metoda na specyfikowanie 
+standardowych ustawieñ.
+
+Kompresja stosowana jest zawsze, nawet je¶li skompresowany plik jest 
+nieznaczniej wiêkszy od pliku oryginalnego. Pliki mniejsze ni¿ mniej wiêcej 
+sto bajtów staj± siê wiêksze, poniewa¿ mechanizm kompresji ma sta³y 
+nag³ówek wynosz±cy oko³o 50 bajtów. Przypadkowe dane (w³±czaj±c wyj¶cie 
+wiêkszo¶ci kompresorów plików) d± kodowane na mniej wiêcej 8.05 bitu na 
+bajt, daj±c zysk oko³o 0.5%.
+
+Jako samosprawdzenie dla twojej ochrony
+.I bzip2
+u¿ywa 32-bitowego CRC aby upewniæ siê, ¿e zdekompresowana wersja pliku jest 
+identyczna z oryginaln±. To strze¿e przed stratami w skompresowanych danych 
+i przed niewykrytymi b³êdami w 
+.I bzip2
+(na szczê¶cie bardzo rzadkich). Mo¿liwo¶æ niewykrycia utraty danych 
+jest mikroskopijna, mniej wiêcej jedna szansa na cztery biliony dla ka¿dego 
+pliku. Uwa¿aj jednak, gdy¿ sprawdzenie jest dokonywane przed dekompresj±, 
+wiêc dowiesz siê tylko tego, ¿e co¶ jest nie w porz±dku. Nie pomo¿e ci to odzyskaæ 
+oryginalnych nieskompresowanych danych. Mo¿esz u¿yæ
+.I bzip2recover
+aby spróbowaæ odzyskaæ dane z uszkodzonych plików.
+
+Zwracane warto¶ci: 0 dla normalnego wyj¶cia, 1 dla problemów technicznych 
+(plik nie znaleziony, niew³a¶ciwy parametr, b³±d wyj¶cia/wyj¶cia itp.), 2 dla 
+zasygnalizowania b³êdu skompresowanego pliku, 3 dla wewnêtrznego b³êdu (np. 
+bug), który zmusi³ \fIbzip2\fP do przerwania.
+
+.SH OPCJE
+.TP
+.B \-c --stdout
+Kompresuje lub dekompresuje na standardowe wyj¶cie.
+.TP
+.B \-d --decompress
+Wymusza dekompresjê.
+.IR bzip2 , 
+.I bunzip2 
+i
+.I bzcat 
+s± tak naprawdê tymi samymi programami i decyzja jakie akcje bêd± wykonane 
+jest wykonywana na podstawie nazwy jaka zosta³a u¿yta. Ten parametr ma wy¿szy 
+priorytet i wymusza na \fIbzip2\fP dekompresjê.
+.TP
+.B \-z --compress
+Podobne do \-d: wymusza kompresjê, bez wzglêdu na sposób wywo³ania.
+.TP
+.B \-t --test
+Sprawdza integralno¶æ wybranego pliku(ów), ale nie dekompresuje ich. Wymusza
+to próbn± dekompresjê i mówi, jaki jest rezultat.
+.TP
+.B \-f --force
+Wymusza zastêpowanie plików wyj¶ciowych. Normalnie, \fIbzip2\fP nie 
+zastêpuje istniej±cych plików wyj¶ciowych. Wymusza równie¿ na \fIbzip2\fP 
+³amanie dowi±zañ twardych, czego normalnie nie robi.
+.TP
+.B \-k --keep
+Zatrzymaj (nie kasuj) pliki wej¶ciowe przy kompresji lub dekompresji.
+.TP
+.B \-s --small
+Zredukuj u¿ycie pamiêci na kompresjê, dekompresjê i testowanie. Pliki s± 
+dekompresowane i testowane przy u¿yciu zmodyfikowanego algorytmu, który 
+potrzebuje tylko 2.5 bajtu na blok bajtów. Oznacza to, ¿e ka¿dy plik mo¿e 
+byæ zdekompresowany przy u¿yciu oko³o 2300k pamiêci, jednak trac±c oko³o po³owê 
+normalnej szybko¶ci.
+
+Podczas kompresji, \-s wybiera bloki wielko¶ci 200k, których limity 
+pamiêci wynosz± mniej wiêcej tyle samo, w zamian za jako¶æ kompresji. W 
+skrócie, je¶li twój komputer ma ma³o pamiêci (8 megabajtów lub mniej), 
+u¿ywaj opcji \-s do wszystkiego. Zobacz \fBzarz±dzanie pamiêci±\fP poni¿ej.
+.TP
+.B \-q --quiet
+Wy³±cza wszystkie nieistotne komunikaty ostrzegawcze.
+Nie s± eliminowane komunikaty dotycz±ce b³êdów wej¶cia/wyj¶cia i innych
+zdarzeñ krytycznych.
+.TP
+.B \-v --verbose
+Tryb gadatliwy -- pokazuje stopieñ kompresji dla ka¿dego pliku. Nastêpne 
+\fB\-v\fP zwiêkszaj± stopieñ gadatliwo¶ci, powoduj±c wy¶wietlanie du¿ej 
+ilo¶ci informacji, przydatnych g³ównie przy diagnostyce.
+.TP
+.B \-L --license -V --version
+Wy¶wietla wersjê programu i warunki licencji.
+.TP
+.B \-1 to \-9
+Ustawia wielko¶æ bloku na 100 k, 200 k .. 900 k przy kompresji. Nie ma 
+¿adnego znaczenia przy dekompresji. Zobacz \fBzarz±dzanie pamiêci±\fP 
+poni¿ej.
+.TP
+.B \--
+Traktuje wszystkie nastêpuj±ce po nim argumenty jako nazwy plików, nawet je¶li 
+zaczynaj± siê one od my¶lnika. Mo¿esz wiêc kompresowaæ i dekompresowaæ 
+pliki, których nazwa zaczyna siê od my¶lnika, na przyk³ad: bzip2 \-- 
+\-mój_plik.
+.TP
+.B \--repetitive-fast --repetitive-best
+Te parametry nie maj± znaczenia w wersjach 0.9.5 i wy¿szych. Umo¿liwia³y one 
+pewn± infantyln± kontrolê nad zachowaniem algorytmu sortuj±cego we 
+wcze¶niejszych wersjach, co by³o czasami u¿yteczne. Wersje 0.9.5 i wy¿sze 
+maj± usprawniony algorytm, który powoduje bezu¿yteczno¶æ tej funkcji.
+
+.SH ZARZ¡DZANIE PAMIÊCI¡
+.I bzip2 
+kompresuje du¿e pliki w blokach. Rozmiar bloku ma wp³yw zarówno na stopieñ 
+osi±ganej kompresji, jak równie¿ na ilo¶æ pamiêci potrzebnej do kompresji 
+i dekompresji. Parametry od \-1 do \-9 wybieraj± rozmiar bloku odpowiednio
+od 100,000 bajtów a¿ do 900,000 bajtów (standardowo). W czasie dekompresji, 
+rozmiar bloku u¿ytego do kompresji jest odczytywany z nag³ówku pliku 
+skompresowanego i
+.I bunzip2
+sam zajmuje odpowiedni± do dekompresji ilo¶æ pamiêci. Poniewa¿ rozmiar
+bloków jest przetrzymywany w pliku skompresowanym, parametry od \-1 do \-9 
+nie maj± przy dekompresji ¿adnego znaczenia.
+
+Wymagania kompresji i dekompresji w bajtach, mog± byæ wyliczone przez:
+
+       Kompresja :   400k + ( 8 x rozmiar bloku )
+
+       Dekompresja :  100k + ( 4 x rozmiar bloku ) lub
+                      100k + ( 2.5 x rozmiar bloku )
+
+Wiêksze bloki daj± du¿e zmniejszenie zwrotów marginalnych. Wiêkszo¶æ 
+kompresji pochodzi z pierwszych stu lub dwustu kilobajtów rozmiaru bloku.
+Warto o tym pamiêtaæ u¿ywaj±c \fIbzip2\fP na wolnych 
+komputerach. Warto równie¿ podkre¶liæ, ¿e rozmiar pamiêci potrzebnej do 
+dekompresji jest wybierany poprzez ustawienie odpowiedniej 
+wielko¶ci bloku przy kompresji.
+
+Dla plików skompresowanych standardowym blokiem wielko¶ci 900k, 
+\fIbunzip2\fP bêdzie wymaga³ oko³o 3700 kilobajtów do dekompresji. Aby 
+umo¿liwiæ dekompresjê na komputerze wyposa¿onym jedynie w 4 megabajty 
+pamiêci, \fIbunzip2\fP ma opcjê, która mo¿e zmniejszyæ wymagania prawie do 
+po³owy, tzn. oko³o 2300 kilobajtów. Prêdko¶æ dekompresji jest równie¿ bardzo 
+zmiejszona, wiêc u¿ywaj tej opcji tylko wtedy, kiedy jest to konieczne. Tym 
+parametrem jest -s.
+
+Generalnie, próbuj i u¿ywaj najwiêkszych rozmiarów bloków, je¶li ilo¶æ 
+pamiêci ci na to pozwala. Prêdko¶æ kompresji i dekompresji w zasadzie nie 
+zale¿y od wielko¶ci u¿ytego bloku.
+
+Inna wa¿na rzecz dotyczy plików, które mieszcz± siê w pojedyñczym bloku -- 
+oznacza to wiêkszo¶æ plików na które siê natkniesz u¿ywaj±c du¿ych bloków. 
+Rozmiar realny pamiêci zabieranej jest proporcjonalny do wielko¶ci pliku, 
+je¶li plik jest mniejszy ni¿ blok. Na przyk³ad, kompresja pliku o 
+wielko¶ci 20,000 bajtów z parametrem -9 wymusi na kompresorze odnalezienie 
+7600 k pamiêci, ale zajêcie tylko 400k + 20000 * 8 = 560 kilobajtów z 
+tego. Podobnie, dekompresor odnajdzie 3700k, ale zajmie tylko 100k + 20000 
+* 4 = 180 kilobajtów.
+
+Tu jest tabela, która podsumowuje maksymalne u¿ycie pamiêci dla ró¿nych 
+rozmiarów bloków. Podano te¿ ca³kowity rozmiar skompresowanych 14 
+plików tekstowych (Calgary Text Compressione Corpus) zajmuj±cych razem 
+3,141,622 bajtów. Ta kolumna daje pewne pojêcie o tym, jaki wp³yw na 
+kompresjê ma wielko¶æ bloków. Ta tabela uzmys³awia równie¿ przewagê u¿ycia 
+wiêkszych bloków dla wiêkszych plików, poniewa¿ "Corpus" jest zdominowany 
+przez mniejsze pliki.
+.nf
+             U¿ycie       U¿ycie        U¿ycie         Corpus
+   Parametr kompresji   dekompresji   dekompresji -s    Size
+
+     -1      1200k         500k          350k          914704
+     -2      2000k         900k          600k          877703
+     -3      2800k         1300k         850k          860338
+     -4      3600k         1700k        1100k          846899
+     -5      4400k         2100k        1350k          845160
+     -6      5200k         2500k        1600k          838626
+     -7      6100k         2900k        1850k          834096
+     -8      6800k         3300k        2100k          828642
+     -9      7600k         3700k        2350k          828642
+.fi
+.SH ODZYSKIWANIE DANYCH ZE ZNISZCZONYCH PLIKÓW BZIP2
+.I bzip2
+kompresuje pliki w blokach, zazwyczaj 900 kilbajtowych. Ka¿dy blok jest 
+trzymany osobno. Je¶li b³êdy transmisji lub no¶nika uszkodz± plik 
+wieloblokowy .bz2, mo¿liwe jest odtworzenie danych zawartych w 
+niezniszczonych blokach pliku.
+
+Ka¿dy blok jest reprezentowany przez 48-bitowy wzorzec, który umo¿liwia 
+znajdowanie przyporz±dkowañ bloków z rozs±dn± pewno¶ci±. Ka¿dy blok 
+ma równie¿ swój 32-bitowy CRC, wiêc bloki uszkodzone mog± byæ ³atwo 
+odseparowane od poprawnych.
+
+.I bzip2recover
+jest oddzielnym programem, którego zadaniem jest poszukiwanie bloków w 
+plikach .bz2 i zapisywanie ich do w³asnego pliku .bz2. Mo¿esz potem u¿yæ 
+\fIbzip2\fP \-t aby sprawdziæ spójno¶æ wyj¶ciowego pliku i zdekompresowaæ 
+te, które nie s± uszkodzone.
+
+.I bzip2recover
+pobiera pojedynczy argument, nazwê uszkodzonego pliku, i tworzy pewn± liczbê 
+plików "rec0001plik.bz2", "rec0002plik.bz2", itd., przetrzymuj±ce odzyskane 
+bloki. Wyj¶ciowe nazwy plików s± tak tworzone, aby ³atwo by³o potem u¿ywaæ 
+ich razem za pomoc± gwiazdek -- na przyk³ad, "bzip2 -dc rec*plik.bz2 > 
+odzyskany_plik" -- wylistuje pliki we w³a¶ciwej kolejno¶ci.
+
+.I bzip2recover
+powinien byæ u¿ywany najczê¶ciej z du¿ymi plikami .bz2, jako i¿ one 
+zawieraj± najczê¶ciej du¿o bloków. Jest czystym bezsensem u¿ywaæ go na 
+uszkodzonym jedno-blokowym pliku, poniewa¿ uszkodzony blok nie mo¿e byæ 
+odzyskany. Je¶li chcesz zminimalizowaæ jakiekolwiek mo¿liwe straty danych 
+poprzez no¶nik lub transmisjê, powiniene¶ zastanowiæ siê nad u¿yciem 
+mniejszych bloków.
+
+.SH OPISY WYNIKÓW
+Etap sortuj±cy kompresji ³±czy razem podobne ci±gi znaków w pliku. Przez 
+to, pliki zawieraj±ce bardzo d³ugie ci±gi powtarzaj±cych siê symboli, jak 
+"aabaabaabaab ..." (powtórzone kilkaset razy) mog± byæ kompresowane wolniej 
+ni¿ normalnie. Wersje 0.9.5 i wy¿sze zachowuj± siê du¿o lepiej w tej 
+sytuacji ni¿ wersje poprzednie. Ró¿nica stopnia kompresji pomiêdzy 
+najgorszym i najlepszym przypadkiem kompresji wynosi oko³o 10:1. Dla 
+wcze¶niejszych wersji by³o to nawet oko³o 100:1. Je¶li chcesz, mo¿esz u¿yæ
+parametru \-vvvv aby monitorowaæ postêpy bardzo szczegó³owo.
+
+Prêdko¶æ dekompresji nie jest zmieniana przez to zjawisko.
+
+.I bzip2
+zazwyczaj rezerwuje kilka megabajtów pamiêci do dzia³ania a 
+potem wykorzystuje j± w sposób zupe³nie przypadkowy.
+Oznacza to, ¿e zarówno prêdko¶æ kompresji jak i dekompresji jest w 
+du¿ej czê¶ci zale¿na od prêdko¶ci, z jak± twój komputer mo¿e naprawiaæ braki 
+bufora podrêcznego. Z tego powodu, wprowadzone zosta³y ma³e zmiany kody aby 
+zmniejszyæ straty, które da³y nieproporcjonalnie du¿y wzrost osi±gniêæ.
+My¶lê, ¿e
+.I bzip2
+bêdzie dzia³a³ najlepiej na komputerach z du¿ymi buforami podrêcznymi.
+
+.SH ZAKAMARKI
+Wiadomo¶ci o b³êdach wej¶cia/wyj¶cia nie s± a¿ tak pomocne, jak mog³yby byæ.
+.I bzip2
+stara siê wykryæ b³±d wej¶cia/wyj¶cia i wyj¶æ "czysto", ale 
+szczegó³y tego, jaki to problem mog± byæ czasami bardzo myl±ce.
+
+Ta strona podrêcznika odnosi siê do wersji 1.0 programu \fIbzip2\fP.
+Skompresowane pliki utworzone przez tê wersjê s± kompatybilne zarówno z 
+w przód jak i wstecznie z poprzednimi publicznymi wydaniami, 
+wersjami 0.1pl2, 0.9.0 i 0.9.5 ale z ma³ymi wyj±tkami: 0.9.0 i wy¿sze potrafi± 
+poprawnie dekompresowaæ wiele skompresowanych plików z³±czonych w jeden. 
+0.1pl2 nie potrafi tego; zatrzyma siê ju¿ po dekompresji pierwszego pliku w 
+strumieniu.
+
+.I bzip2recover
+u¿ywa 32-bitowych liczb do reprezentacji pozycji bitu w skompresowanym 
+pliku, wiêc nie mo¿e przetwarzaæ skompresowanych plików d³u¿szych ni¿ 512 
+megabajtów. Mo¿na to ³atwo naprawiæ.
+
+.SH AUTOR
+Julian Seward, jseward@acm.org.
+
+http://www.muraroa.demon.co.uk
+http://sourceware.cygnus.com/bzip2
+
+Idee zawarte w \fIbzip2\fP s± podzielone (przynajmniej) pomiêdzy 
+nastepuj±cy ludzi: Michael Burrows i David Wheeler (transformacja
+sortuj±c± bloki), David Wheeler (znów, koder Huffmana), Peter Fenwick 
+(struktura kodowania modelu w oryginalnym \fIbzip2\fP, i wiele 
+udoskonaleñ), i Alistair Moffar, Radford Neal i Ian Witten (arytmetyczny 
+koder w oryginalnym \fIbzip2\fP). Jestem im bardzo wdziêczny za ich pomoc, 
+wsparcie i porady. Zobacz stronê manuala w ¼ród³owej dystrybucji po 
+wska¼niki do ¼róde³ dokumentacji. Christian von Roques zachêci³ mnie do 
+wymy¶lenia szybszego algorytmu sortuj±cego, po to ¿eby przyspieszyæ 
+kompresjê. Bela Lubkin zachêci³a mnie do polepszenia najgorszych wyników 
+kompresji. Wiele ludzi przys³a³o ³atki, pomog³o w ró¿nych problemach, 
+po¿yczy³o komputerów, da³o rady i by³o ogólnie pomocnych.
diff -Nru bzip2-1.0.1/doc/pl/bzip2recover.1 bzip2-1.0.1.new/doc/pl/bzip2recover.1
--- bzip2-1.0.1/doc/pl/bzip2recover.1   Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/doc/pl/bzip2recover.1       Sat Jun 24 20:13:06 2000
@@ -0,0 +1 @@
+.so bzip2.1
\ No newline at end of file
diff -Nru bzip2-1.0.1/huffman.c bzip2-1.0.1.new/huffman.c
--- bzip2-1.0.1/huffman.c       Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/huffman.c   Sat Jun 24 20:13:06 2000
@@ -58,6 +58,10 @@
   For more information on these sources, see the manual.
 --*/
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 
 #include "bzlib_private.h"
 
diff -Nru bzip2-1.0.1/makefile.msc bzip2-1.0.1.new/makefile.msc
--- bzip2-1.0.1/makefile.msc    Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/makefile.msc        Thu Jan  1 01:00:00 1970
@@ -1,63 +0,0 @@
-# Makefile for Microsoft Visual C++ 6.0\r
-# usage: nmake -f makefile.msc\r
-# K.M. Syring (syring@gsf.de)\r
-# Fixed up by JRS for bzip2-0.9.5d release.\r
-\r
-CC=cl\r
-CFLAGS= -DWIN32 -MD -Ox -D_FILE_OFFSET_BITS=64\r
-\r
-OBJS= blocksort.obj  \\r
-      huffman.obj    \\r
-      crctable.obj   \\r
-      randtable.obj  \\r
-      compress.obj   \\r
-      decompress.obj \\r
-      bzlib.obj\r
-\r
-all: lib bzip2 test\r
-\r
-bzip2: lib\r
-       $(CC) $(CFLAGS) -o bzip2 bzip2.c libbz2.lib setargv.obj\r
-       $(CC) $(CFLAGS) -o bzip2recover bzip2recover.c\r
-\r
-lib: $(OBJS)\r
-       lib /out:libbz2.lib $(OBJS)\r
-\r
-test: bzip2\r
-       type words1\r
-       .\\bzip2 -1  < sample1.ref > sample1.rb2\r
-       .\\bzip2 -2  < sample2.ref > sample2.rb2\r
-       .\\bzip2 -3  < sample3.ref > sample3.rb2\r
-       .\\bzip2 -d  < sample1.bz2 > sample1.tst\r
-       .\\bzip2 -d  < sample2.bz2 > sample2.tst\r
-       .\\bzip2 -ds < sample3.bz2 > sample3.tst\r
-       @echo All six of the fc's should find no differences.\r
-       @echo If fc finds an error on sample3.bz2, this could be\r
-       @echo because WinZip's 'TAR file smart CR/LF conversion'\r
-       @echo is too clever for its own good.  Disable this option.\r
-       @echo The correct size for sample3.ref is 120,244.  If it\r
-       @echo is 150,251, WinZip has messed it up.\r
-       fc sample1.bz2 sample1.rb2 \r
-       fc sample2.bz2 sample2.rb2\r
-       fc sample3.bz2 sample3.rb2\r
-       fc sample1.tst sample1.ref\r
-       fc sample2.tst sample2.ref\r
-       fc sample3.tst sample3.ref\r
-\r
-\r
-\r
-clean: \r
-       del *.obj\r
-       del libbz2.lib \r
-       del bzip2.exe\r
-       del bzip2recover.exe\r
-       del sample1.rb2 \r
-       del sample2.rb2 \r
-       del sample3.rb2\r
-       del sample1.tst \r
-       del sample2.tst\r
-       del sample3.tst\r
-\r
-.c.obj: \r
-       $(CC) $(CFLAGS) -c $*.c -o $*.obj\r
-\r
diff -Nru bzip2-1.0.1/manual.ps bzip2-1.0.1.new/manual.ps
--- bzip2-1.0.1/manual.ps       Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/manual.ps   Thu Jan  1 01:00:00 1970
@@ -1,3808 +0,0 @@
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-%%EOF
diff -Nru bzip2-1.0.1/manual.texi bzip2-1.0.1.new/manual.texi
--- bzip2-1.0.1/manual.texi     Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/manual.texi Thu Jan  1 01:00:00 1970
@@ -1,2215 +0,0 @@
-\input texinfo  @c                                  -*- Texinfo -*-
-@setfilename bzip2.info
-
-@ignore
-This file documents bzip2 version 1.0, and associated library
-libbzip2, written by Julian Seward (jseward@acm.org).
-
-Copyright (C) 1996-2000 Julian R Seward
-
-Permission is granted to make and distribute verbatim copies of
-this manual provided the copyright notice and this permission notice
-are preserved on all copies.
-
-Permission is granted to copy and distribute translations of this manual
-into another language, under the above conditions for verbatim copies.
-@end ignore
-
-@ifinfo
-@format
-START-INFO-DIR-ENTRY
-* Bzip2: (bzip2).              A program and library for data compression.
-END-INFO-DIR-ENTRY
-@end format
-
-@end ifinfo
-
-@iftex
-@c @finalout
-@settitle bzip2 and libbzip2
-@titlepage
-@title bzip2 and libbzip2
-@subtitle a program and library for data compression
-@subtitle copyright (C) 1996-2000 Julian Seward
-@subtitle version 1.0 of 21 March 2000
-@author Julian Seward
-
-@end titlepage
-
-@parindent 0mm
-@parskip 2mm
-
-@end iftex
-@node Top, Overview, (dir), (dir)
-
-This program, @code{bzip2}, 
-and associated library @code{libbzip2}, are
-Copyright (C) 1996-2000 Julian R Seward.  All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-@itemize @bullet
-@item
-   Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-@item
-   The origin of this software must not be misrepresented; you must 
-   not claim that you wrote the original software.  If you use this 
-   software in a product, an acknowledgment in the product 
-   documentation would be appreciated but is not required.
-@item
-   Altered source versions must be plainly marked as such, and must
-   not be misrepresented as being the original software.
-@item
-   The name of the author may not be used to endorse or promote 
-   products derived from this software without specific prior written 
-   permission.
-@end itemize
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
-OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
-DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
-GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-Julian Seward, Cambridge, UK.
-
-@code{jseward@@acm.org}
-
-@code{http://sourceware.cygnus.com/bzip2}
-
-@code{http://www.cacheprof.org}
-
-@code{http://www.muraroa.demon.co.uk}
-
-@code{bzip2}/@code{libbzip2} version 1.0 of 21 March 2000.
-
-PATENTS: To the best of my knowledge, @code{bzip2} does not use any patented
-algorithms.  However, I do not have the resources available to carry out
-a full patent search.  Therefore I cannot give any guarantee of the
-above statement.
-
-
-
-
-
-
-
-@node Overview, Implementation, Top, Top
-@chapter Introduction
-
-@code{bzip2}  compresses  files  using the Burrows-Wheeler 
-block-sorting text compression algorithm,  and  Huffman  coding.
-Compression  is  generally  considerably  better than that
-achieved by more conventional LZ77/LZ78-based compressors,
-and  approaches  the performance of the PPM family of statistical compressors.
-
-@code{bzip2} is built on top of @code{libbzip2}, a flexible library
-for handling compressed data in the @code{bzip2} format.  This manual
-describes both how to use the program and 
-how to work with the library interface.  Most of the
-manual is devoted to this library, not the program, 
-which is good news if your interest is only in the program.
-
-Chapter 2 describes how to use @code{bzip2}; this is the only part 
-you need to read if you just want to know how to operate the program.
-Chapter 3 describes the programming interfaces in detail, and
-Chapter 4 records some miscellaneous notes which I thought
-ought to be recorded somewhere.
-
-
-@chapter How to use @code{bzip2}
-
-This chapter contains a copy of the @code{bzip2} man page,
-and nothing else.
-
-@quotation
-
-@unnumberedsubsubsec NAME
-@itemize
-@item @code{bzip2}, @code{bunzip2}
-- a block-sorting file compressor, v1.0
-@item @code{bzcat} 
-- decompresses files to stdout
-@item @code{bzip2recover}
-- recovers data from damaged bzip2 files
-@end itemize
-
-@unnumberedsubsubsec SYNOPSIS
-@itemize
-@item @code{bzip2} [ -cdfkqstvzVL123456789 ] [ filenames ...  ]
-@item @code{bunzip2} [ -fkvsVL ] [ filenames ...  ]
-@item @code{bzcat} [ -s ] [ filenames ...  ]
-@item @code{bzip2recover} filename
-@end itemize
-
-@unnumberedsubsubsec DESCRIPTION
-
-@code{bzip2} compresses files using the Burrows-Wheeler block sorting
-text compression algorithm, and Huffman coding.  Compression is
-generally considerably better than that achieved by more conventional
-LZ77/LZ78-based compressors, and approaches the performance of the PPM
-family of statistical compressors.
-
-The command-line options are deliberately very similar to those of GNU
-@code{gzip}, but they are not identical.
-
-@code{bzip2} expects a list of file names to accompany the command-line
-flags.  Each file is replaced by a compressed version of itself, with
-the name @code{original_name.bz2}.  Each compressed file has the same
-modification date, permissions, and, when possible, ownership as the
-corresponding original, so that these properties can be correctly
-restored at decompression time.  File name handling is naive in the
-sense that there is no mechanism for preserving original file names,
-permissions, ownerships or dates in filesystems which lack these
-concepts, or have serious file name length restrictions, such as MS-DOS.
-
-@code{bzip2} and @code{bunzip2} will by default not overwrite existing
-files.  If you want this to happen, specify the @code{-f} flag.
-
-If no file names are specified, @code{bzip2} compresses from standard
-input to standard output.  In this case, @code{bzip2} will decline to
-write compressed output to a terminal, as this would be entirely
-incomprehensible and therefore pointless.
-
-@code{bunzip2} (or @code{bzip2 -d}) decompresses all
-specified files.  Files which were not created by @code{bzip2}
-will be detected and ignored, and a warning issued.  
-@code{bzip2} attempts to guess the filename for the decompressed file 
-from that of the compressed file as follows:
-@itemize
-@item @code{filename.bz2 } becomes @code{filename}
-@item @code{filename.bz  } becomes @code{filename}
-@item @code{filename.tbz2} becomes @code{filename.tar}
-@item @code{filename.tbz } becomes @code{filename.tar}
-@item @code{anyothername } becomes @code{anyothername.out}
-@end itemize
-If the file does not end in one of the recognised endings, 
-@code{.bz2}, @code{.bz}, 
-@code{.tbz2} or @code{.tbz}, @code{bzip2} complains that it cannot
-guess the name of the original file, and uses the original name
-with @code{.out} appended.
-
-As with compression, supplying no
-filenames causes decompression from standard input to standard output.
-
-@code{bunzip2} will correctly decompress a file which is the
-concatenation of two or more compressed files.  The result is the
-concatenation of the corresponding uncompressed files.  Integrity
-testing (@code{-t}) of concatenated compressed files is also supported.
-
-You can also compress or decompress files to the standard output by
-giving the @code{-c} flag.  Multiple files may be compressed and
-decompressed like this.  The resulting outputs are fed sequentially to
-stdout.  Compression of multiple files in this manner generates a stream
-containing multiple compressed file representations.  Such a stream
-can be decompressed correctly only by @code{bzip2} version 0.9.0 or
-later.  Earlier versions of @code{bzip2} will stop after decompressing
-the first file in the stream.
-
-@code{bzcat} (or @code{bzip2 -dc}) decompresses all specified files to
-the standard output.
-
-@code{bzip2} will read arguments from the environment variables
-@code{BZIP2} and @code{BZIP}, in that order, and will process them
-before any arguments read from the command line.  This gives a 
-convenient way to supply default arguments.
-
-Compression is always performed, even if the compressed file is slightly
-larger than the original.  Files of less than about one hundred bytes
-tend to get larger, since the compression mechanism has a constant
-overhead in the region of 50 bytes.  Random data (including the output
-of most file compressors) is coded at about 8.05 bits per byte, giving
-an expansion of around 0.5%.
-
-As a self-check for your protection, @code{bzip2} uses 32-bit CRCs to
-make sure that the decompressed version of a file is identical to the
-original.  This guards against corruption of the compressed data, and
-against undetected bugs in @code{bzip2} (hopefully very unlikely).  The
-chances of data corruption going undetected is microscopic, about one
-chance in four billion for each file processed.  Be aware, though, that
-the check occurs upon decompression, so it can only tell you that
-something is wrong.  It can't help you recover the original uncompressed
-data.  You can use @code{bzip2recover} to try to recover data from
-damaged files.
-
-Return values: 0 for a normal exit, 1 for environmental problems (file
-not found, invalid flags, I/O errors, &c), 2 to indicate a corrupt
-compressed file, 3 for an internal consistency error (eg, bug) which
-caused @code{bzip2} to panic.
-
-
-@unnumberedsubsubsec OPTIONS
-@table @code
-@item -c  --stdout
-Compress or decompress to standard output.
-@item -d  --decompress
-Force decompression.  @code{bzip2}, @code{bunzip2} and @code{bzcat} are
-really the same program, and the decision about what actions to take is
-done on the basis of which name is used.  This flag overrides that
-mechanism, and forces bzip2 to decompress.
-@item -z --compress
-The complement to @code{-d}: forces compression, regardless of the
-invokation name.
-@item -t --test
-Check integrity of the specified file(s), but don't decompress them.
-This really performs a trial decompression and throws away the result.
-@item -f --force
-Force overwrite of output files.  Normally, @code{bzip2} will not overwrite
-existing output files.  Also forces @code{bzip2} to break hard links
-to files, which it otherwise wouldn't do.
-@item -k --keep
-Keep (don't delete) input files during compression
-or decompression.
-@item -s --small
-Reduce memory usage, for compression, decompression and testing.  Files
-are decompressed and tested using a modified algorithm which only
-requires 2.5 bytes per block byte.  This means any file can be
-decompressed in 2300k of memory, albeit at about half the normal speed.
-
-During compression, @code{-s} selects a block size of 200k, which limits
-memory use to around the same figure, at the expense of your compression
-ratio.  In short, if your machine is low on memory (8 megabytes or
-less), use -s for everything.  See MEMORY MANAGEMENT below.
-@item -q --quiet
-Suppress non-essential warning messages.  Messages pertaining to
-I/O errors and other critical events will not be suppressed.
-@item -v --verbose
-Verbose mode -- show the compression ratio for each file processed.
-Further @code{-v}'s increase the verbosity level, spewing out lots of
-information which is primarily of interest for diagnostic purposes.
-@item -L --license -V --version
-Display the software version, license terms and conditions.
-@item -1 to -9
-Set the block size to 100 k, 200 k ..  900 k when compressing.  Has no
-effect when decompressing.  See MEMORY MANAGEMENT below.
-@item --
-Treats all subsequent arguments as file names, even if they start
-with a dash.  This is so you can handle files with names beginning
-with a dash, for example: @code{bzip2 -- -myfilename}.
-@item --repetitive-fast 
-@item --repetitive-best
-These flags are redundant in versions 0.9.5 and above.  They provided
-some coarse control over the behaviour of the sorting algorithm in
-earlier versions, which was sometimes useful.  0.9.5 and above have an
-improved algorithm which renders these flags irrelevant.
-@end table
-
-
-@unnumberedsubsubsec MEMORY MANAGEMENT
-
-@code{bzip2} compresses large files in blocks.  The block size affects
-both the compression ratio achieved, and the amount of memory needed for
-compression and decompression.  The flags @code{-1} through @code{-9}
-specify the block size to be 100,000 bytes through 900,000 bytes (the
-default) respectively.  At decompression time, the block size used for
-compression is read from the header of the compressed file, and
-@code{bunzip2} then allocates itself just enough memory to decompress
-the file.  Since block sizes are stored in compressed files, it follows
-that the flags @code{-1} to @code{-9} are irrelevant to and so ignored
-during decompression.
-
-Compression and decompression requirements, in bytes, can be estimated
-as:
-@example
-     Compression:   400k + ( 8 x block size )
-
-     Decompression: 100k + ( 4 x block size ), or
-                    100k + ( 2.5 x block size )
-@end example
-Larger block sizes give rapidly diminishing marginal returns.  Most of
-the compression comes from the first two or three hundred k of block
-size, a fact worth bearing in mind when using @code{bzip2} on small machines.
-It is also important to appreciate that the decompression memory
-requirement is set at compression time by the choice of block size.
-
-For files compressed with the default 900k block size, @code{bunzip2}
-will require about 3700 kbytes to decompress.  To support decompression
-of any file on a 4 megabyte machine, @code{bunzip2} has an option to
-decompress using approximately half this amount of memory, about 2300
-kbytes.  Decompression speed is also halved, so you should use this
-option only where necessary.  The relevant flag is @code{-s}.
-
-In general, try and use the largest block size memory constraints allow,
-since that maximises the compression achieved.  Compression and
-decompression speed are virtually unaffected by block size.
-
-Another significant point applies to files which fit in a single block
--- that means most files you'd encounter using a large block size.  The
-amount of real memory touched is proportional to the size of the file,
-since the file is smaller than a block.  For example, compressing a file
-20,000 bytes long with the flag @code{-9} will cause the compressor to
-allocate around 7600k of memory, but only touch 400k + 20000 * 8 = 560
-kbytes of it.  Similarly, the decompressor will allocate 3700k but only
-touch 100k + 20000 * 4 = 180 kbytes.
-
-Here is a table which summarises the maximum memory usage for different
-block sizes.  Also recorded is the total compressed size for 14 files of
-the Calgary Text Compression Corpus totalling 3,141,622 bytes.  This
-column gives some feel for how compression varies with block size.
-These figures tend to understate the advantage of larger block sizes for
-larger files, since the Corpus is dominated by smaller files.
-@example
-          Compress   Decompress   Decompress   Corpus
-   Flag     usage      usage       -s usage     Size
-
-    -1      1200k       500k         350k      914704
-    -2      2000k       900k         600k      877703
-    -3      2800k      1300k         850k      860338
-    -4      3600k      1700k        1100k      846899
-    -5      4400k      2100k        1350k      845160
-    -6      5200k      2500k        1600k      838626
-    -7      6100k      2900k        1850k      834096
-    -8      6800k      3300k        2100k      828642
-    -9      7600k      3700k        2350k      828642
-@end example
-
-@unnumberedsubsubsec RECOVERING DATA FROM DAMAGED FILES
-
-@code{bzip2} compresses files in blocks, usually 900kbytes long.  Each
-block is handled independently.  If a media or transmission error causes
-a multi-block @code{.bz2} file to become damaged, it may be possible to
-recover data from the undamaged blocks in the file.
-
-The compressed representation of each block is delimited by a 48-bit
-pattern, which makes it possible to find the block boundaries with
-reasonable certainty.  Each block also carries its own 32-bit CRC, so
-damaged blocks can be distinguished from undamaged ones.
-
-@code{bzip2recover} is a simple program whose purpose is to search for
-blocks in @code{.bz2} files, and write each block out into its own
-@code{.bz2} file.  You can then use @code{bzip2 -t} to test the
-integrity of the resulting files, and decompress those which are
-undamaged.
-
-@code{bzip2recover} 
-takes a single argument, the name of the damaged file, 
-and writes a number of files @code{rec0001file.bz2},
-       @code{rec0002file.bz2}, etc, containing the  extracted  blocks.
-       The  output  filenames  are  designed  so  that the use of
-       wildcards in subsequent processing -- for example,  
-@code{bzip2 -dc  rec*file.bz2 > recovered_data} -- lists the files in
-       the correct order.
-
-@code{bzip2recover} should be of most use dealing with large @code{.bz2}
-       files,  as  these will contain many blocks.  It is clearly
-       futile to use it on damaged single-block  files,  since  a
-       damaged  block  cannot  be recovered.  If you wish to minimise 
-any potential data loss through media  or  transmission errors, 
-you might consider compressing with a smaller
-       block size.
-
-
-@unnumberedsubsubsec PERFORMANCE NOTES
-
-The sorting phase of compression gathers together similar strings in the
-file.  Because of this, files containing very long runs of repeated
-symbols, like "aabaabaabaab ..."  (repeated several hundred times) may
-compress more slowly than normal.  Versions 0.9.5 and above fare much
-better than previous versions in this respect.  The ratio between
-worst-case and average-case compression time is in the region of 10:1.
-For previous versions, this figure was more like 100:1.  You can use the
-@code{-vvvv} option to monitor progress in great detail, if you want.
-
-Decompression speed is unaffected by these phenomena.
-
-@code{bzip2} usually allocates several megabytes of memory to operate
-in, and then charges all over it in a fairly random fashion.  This means
-that performance, both for compressing and decompressing, is largely
-determined by the speed at which your machine can service cache misses.
-Because of this, small changes to the code to reduce the miss rate have
-been observed to give disproportionately large performance improvements.
-I imagine @code{bzip2} will perform best on machines with very large
-caches.
-
-
-@unnumberedsubsubsec CAVEATS
-
-I/O error messages are not as helpful as they could be.  @code{bzip2}
-tries hard to detect I/O errors and exit cleanly, but the details of
-what the problem is sometimes seem rather misleading.
-
-This manual page pertains to version 1.0 of @code{bzip2}.  Compressed
-data created by this version is entirely forwards and backwards
-compatible with the previous public releases, versions 0.1pl2, 0.9.0 and
-0.9.5, but with the following exception: 0.9.0 and above can correctly
-decompress multiple concatenated compressed files.  0.1pl2 cannot do
-this; it will stop after decompressing just the first file in the
-stream.
-
-@code{bzip2recover} uses 32-bit integers to represent bit positions in
-compressed files, so it cannot handle compressed files more than 512
-megabytes long.  This could easily be fixed.
-
-
-@unnumberedsubsubsec AUTHOR
-Julian Seward, @code{jseward@@acm.org}.
-
-The ideas embodied in @code{bzip2} are due to (at least) the following
-people: Michael Burrows and David Wheeler (for the block sorting
-transformation), David Wheeler (again, for the Huffman coder), Peter
-Fenwick (for the structured coding model in the original @code{bzip},
-and many refinements), and Alistair Moffat, Radford Neal and Ian Witten
-(for the arithmetic coder in the original @code{bzip}).  I am much
-indebted for their help, support and advice.  See the manual in the
-source distribution for pointers to sources of documentation.  Christian
-von Roques encouraged me to look for faster sorting algorithms, so as to
-speed up compression.  Bela Lubkin encouraged me to improve the
-worst-case compression performance.  Many people sent patches, helped
-with portability problems, lent machines, gave advice and were generally
-helpful.
-
-@end quotation
-
-
-
-
-@chapter Programming with @code{libbzip2}
-
-This chapter describes the programming interface to @code{libbzip2}.
-
-For general background information, particularly about memory
-use and performance aspects, you'd be well advised to read Chapter 2
-as well.
-
-@section Top-level structure
-
-@code{libbzip2} is a flexible library for compressing and decompressing
-data in the @code{bzip2} data format.  Although packaged as a single
-entity, it helps to regard the library as three separate parts: the low
-level interface, and the high level interface, and some utility
-functions.
-
-The structure of @code{libbzip2}'s interfaces is similar to
-that of Jean-loup Gailly's and Mark Adler's excellent @code{zlib} 
-library.
-
-All externally visible symbols have names beginning @code{BZ2_}.
-This is new in version 1.0.  The intention is to minimise pollution
-of the namespaces of library clients.
-
-@subsection Low-level summary
-
-This interface provides services for compressing and decompressing
-data in memory.  There's no provision for dealing with files, streams
-or any other I/O mechanisms, just straight memory-to-memory work.
-In fact, this part of the library can be compiled without inclusion
-of @code{stdio.h}, which may be helpful for embedded applications.
-
-The low-level part of the library has no global variables and
-is therefore thread-safe.
-
-Six routines make up the low level interface: 
-@code{BZ2_bzCompressInit}, @code{BZ2_bzCompress}, and @* @code{BZ2_bzCompressEnd}
-for compression,
-and a corresponding trio @code{BZ2_bzDecompressInit}, @* @code{BZ2_bzDecompress}
-and @code{BZ2_bzDecompressEnd} for decompression.  
-The @code{*Init} functions allocate
-memory for compression/decompression and do other
-initialisations, whilst the @code{*End} functions close down operations
-and release memory.
-
-The real work is done by @code{BZ2_bzCompress} and @code{BZ2_bzDecompress}.  
-These compress and decompress data from a user-supplied input buffer
-to a user-supplied output buffer.  These buffers can be any size;
-arbitrary quantities of data are handled by making repeated calls
-to these functions.  This is a flexible mechanism allowing a 
-consumer-pull style of activity, or producer-push, or a mixture of
-both.
-
-
-
-@subsection High-level summary
-
-This interface provides some handy wrappers around the low-level
-interface to facilitate reading and writing @code{bzip2} format
-files (@code{.bz2} files).  The routines provide hooks to facilitate
-reading files in which the @code{bzip2} data stream is embedded 
-within some larger-scale file structure, or where there are
-multiple @code{bzip2} data streams concatenated end-to-end.
-
-For reading files, @code{BZ2_bzReadOpen}, @code{BZ2_bzRead},
-@code{BZ2_bzReadClose} and @* @code{BZ2_bzReadGetUnused} are supplied.  For
-writing files, @code{BZ2_bzWriteOpen}, @code{BZ2_bzWrite} and
-@code{BZ2_bzWriteFinish} are available.
-
-As with the low-level library, no global variables are used
-so the library is per se thread-safe.  However, if I/O errors
-occur whilst reading or writing the underlying compressed files,
-you may have to consult @code{errno} to determine the cause of
-the error.  In that case, you'd need a C library which correctly
-supports @code{errno} in a multithreaded environment.
-
-To make the library a little simpler and more portable,
-@code{BZ2_bzReadOpen} and @code{BZ2_bzWriteOpen} require you to pass them file
-handles (@code{FILE*}s) which have previously been opened for reading or
-writing respectively.  That avoids portability problems associated with
-file operations and file attributes, whilst not being much of an
-imposition on the programmer.
-
-
-
-@subsection Utility functions summary
-For very simple needs, @code{BZ2_bzBuffToBuffCompress} and
-@code{BZ2_bzBuffToBuffDecompress} are provided.  These compress
-data in memory from one buffer to another buffer in a single
-function call.  You should assess whether these functions
-fulfill your memory-to-memory compression/decompression
-requirements before investing effort in understanding the more
-general but more complex low-level interface.
-
-Yoshioka Tsuneo (@code{QWF00133@@niftyserve.or.jp} /
-@code{tsuneo-y@@is.aist-nara.ac.jp}) has contributed some functions to
-give better @code{zlib} compatibility.  These functions are
-@code{BZ2_bzopen}, @code{BZ2_bzread}, @code{BZ2_bzwrite}, @code{BZ2_bzflush},
-@code{BZ2_bzclose},
-@code{BZ2_bzerror} and @code{BZ2_bzlibVersion}.  You may find these functions
-more convenient for simple file reading and writing, than those in the
-high-level interface.  These functions are not (yet) officially part of
-the library, and are minimally documented here.  If they break, you
-get to keep all the pieces.  I hope to document them properly when time
-permits.
-
-Yoshioka also contributed modifications to allow the library to be
-built as a Windows DLL.
-
-
-@section Error handling
-
-The library is designed to recover cleanly in all situations, including
-the worst-case situation of decompressing random data.  I'm not 
-100% sure that it can always do this, so you might want to add
-a signal handler to catch segmentation violations during decompression
-if you are feeling especially paranoid.  I would be interested in
-hearing more about the robustness of the library to corrupted
-compressed data.
-
-Version 1.0 is much more robust in this respect than
-0.9.0 or 0.9.5.  Investigations with Checker (a tool for 
-detecting problems with memory management, similar to Purify)
-indicate that, at least for the few files I tested, all single-bit
-errors in the decompressed data are caught properly, with no
-segmentation faults, no reads of uninitialised data and no 
-out of range reads or writes.  So it's certainly much improved,
-although I wouldn't claim it to be totally bombproof.
-
-The file @code{bzlib.h} contains all definitions needed to use
-the library.  In particular, you should definitely not include
-@code{bzlib_private.h}.
-
-In @code{bzlib.h}, the various return values are defined.  The following
-list is not intended as an exhaustive description of the circumstances 
-in which a given value may be returned -- those descriptions are given
-later.  Rather, it is intended to convey the rough meaning of each
-return value.  The first five actions are normal and not intended to 
-denote an error situation.
-@table @code
-@item BZ_OK
-The requested action was completed successfully.
-@item BZ_RUN_OK
-@itemx BZ_FLUSH_OK
-@itemx BZ_FINISH_OK
-In @code{BZ2_bzCompress}, the requested flush/finish/nothing-special action
-was completed successfully.
-@item BZ_STREAM_END
-Compression of data was completed, or the logical stream end was
-detected during decompression.
-@end table
-
-The following return values indicate an error of some kind.
-@table @code
-@item BZ_CONFIG_ERROR
-Indicates that the library has been improperly compiled on your
-platform -- a major configuration error.  Specifically, it means
-that @code{sizeof(char)}, @code{sizeof(short)} and @code{sizeof(int)}
-are not 1, 2 and 4 respectively, as they should be.  Note that the 
-library should still work properly on 64-bit platforms which follow
-the LP64 programming model -- that is, where @code{sizeof(long)}
-and @code{sizeof(void*)} are 8.  Under LP64, @code{sizeof(int)} is
-still 4, so @code{libbzip2}, which doesn't use the @code{long} type,
-is OK.
-@item BZ_SEQUENCE_ERROR
-When using the library, it is important to call the functions in the
-correct sequence and with data structures (buffers etc) in the correct
-states.  @code{libbzip2} checks as much as it can to ensure this is
-happening, and returns @code{BZ_SEQUENCE_ERROR} if not.  Code which
-complies precisely with the function semantics, as detailed below,
-should never receive this value; such an event denotes buggy code
-which you should investigate.
-@item BZ_PARAM_ERROR
-Returned when a parameter to a function call is out of range 
-or otherwise manifestly incorrect.  As with @code{BZ_SEQUENCE_ERROR},
-this denotes a bug in the client code.  The distinction between
-@code{BZ_PARAM_ERROR} and @code{BZ_SEQUENCE_ERROR} is a bit hazy, but still worth
-making.
-@item BZ_MEM_ERROR
-Returned when a request to allocate memory failed.  Note that the
-quantity of memory needed to decompress a stream cannot be determined
-until the stream's header has been read.  So @code{BZ2_bzDecompress} and
-@code{BZ2_bzRead} may return @code{BZ_MEM_ERROR} even though some of
-the compressed data has been read.  The same is not true for
-compression; once @code{BZ2_bzCompressInit} or @code{BZ2_bzWriteOpen} have
-successfully completed, @code{BZ_MEM_ERROR} cannot occur.
-@item BZ_DATA_ERROR
-Returned when a data integrity error is detected during decompression.
-Most importantly, this means when stored and computed CRCs for the
-data do not match.  This value is also returned upon detection of any
-other anomaly in the compressed data.
-@item BZ_DATA_ERROR_MAGIC
-As a special case of @code{BZ_DATA_ERROR}, it is sometimes useful to
-know when the compressed stream does not start with the correct
-magic bytes (@code{'B' 'Z' 'h'}).  
-@item BZ_IO_ERROR
-Returned by @code{BZ2_bzRead} and @code{BZ2_bzWrite} when there is an error
-reading or writing in the compressed file, and by @code{BZ2_bzReadOpen}
-and @code{BZ2_bzWriteOpen} for attempts to use a file for which the
-error indicator (viz, @code{ferror(f)}) is set.
-On receipt of @code{BZ_IO_ERROR}, the caller should consult
-@code{errno} and/or @code{perror} to acquire operating-system
-specific information about the problem.
-@item BZ_UNEXPECTED_EOF
-Returned by @code{BZ2_bzRead} when the compressed file finishes
-before the logical end of stream is detected.
-@item BZ_OUTBUFF_FULL
-Returned by @code{BZ2_bzBuffToBuffCompress} and
-@code{BZ2_bzBuffToBuffDecompress} to indicate that the output data
-will not fit into the output buffer provided.
-@end table
-
-
-
-@section Low-level interface
-
-@subsection @code{BZ2_bzCompressInit}
-@example
-typedef 
-   struct @{
-      char *next_in;
-      unsigned int avail_in;
-      unsigned int total_in_lo32;
-      unsigned int total_in_hi32;
-
-      char *next_out;
-      unsigned int avail_out;
-      unsigned int total_out_lo32;
-      unsigned int total_out_hi32;
-
-      void *state;
-
-      void *(*bzalloc)(void *,int,int);
-      void (*bzfree)(void *,void *);
-      void *opaque;
-   @} 
-   bz_stream;
-
-int BZ2_bzCompressInit ( bz_stream *strm, 
-                         int blockSize100k, 
-                         int verbosity,
-                         int workFactor );
-
-@end example
-
-Prepares for compression.  The @code{bz_stream} structure
-holds all data pertaining to the compression activity.  
-A @code{bz_stream} structure should be allocated and initialised
-prior to the call.
-The fields of @code{bz_stream}
-comprise the entirety of the user-visible data.  @code{state}
-is a pointer to the private data structures required for compression.
-
-Custom memory allocators are supported, via fields @code{bzalloc}, 
-@code{bzfree},
-and @code{opaque}.  The value 
-@code{opaque} is passed to as the first argument to
-all calls to @code{bzalloc} and @code{bzfree}, but is 
-otherwise ignored by the library.
-The call @code{bzalloc ( opaque, n, m )} is expected to return a 
-pointer @code{p} to
-@code{n * m} bytes of memory, and @code{bzfree ( opaque, p )} 
-should free
-that memory.
-
-If you don't want to use a custom memory allocator, set @code{bzalloc}, 
-@code{bzfree} and
-@code{opaque} to @code{NULL}, 
-and the library will then use the standard @code{malloc}/@code{free}
-routines.
-
-Before calling @code{BZ2_bzCompressInit}, fields @code{bzalloc}, 
-@code{bzfree} and @code{opaque} should
-be filled appropriately, as just described.  Upon return, the internal
-state will have been allocated and initialised, and @code{total_in_lo32}, 
-@code{total_in_hi32}, @code{total_out_lo32} and 
-@code{total_out_hi32} will have been set to zero.  
-These four fields are used by the library
-to inform the caller of the total amount of data passed into and out of
-the library, respectively.  You should not try to change them.
-As of version 1.0, 64-bit counts are maintained, even on 32-bit
-platforms, using the @code{_hi32} fields to store the upper 32 bits
-of the count.  So, for example, the total amount of data in
-is @code{(total_in_hi32 << 32) + total_in_lo32}.
-
-Parameter @code{blockSize100k} specifies the block size to be used for
-compression.  It should be a value between 1 and 9 inclusive, and the
-actual block size used is 100000 x this figure.  9 gives the best
-compression but takes most memory.
-
-Parameter @code{verbosity} should be set to a number between 0 and 4
-inclusive.  0 is silent, and greater numbers give increasingly verbose
-monitoring/debugging output.  If the library has been compiled with
-@code{-DBZ_NO_STDIO}, no such output will appear for any verbosity
-setting.
-
-Parameter @code{workFactor} controls how the compression phase behaves
-when presented with worst case, highly repetitive, input data.  If
-compression runs into difficulties caused by repetitive data, the
-library switches from the standard sorting algorithm to a fallback
-algorithm.  The fallback is slower than the standard algorithm by
-perhaps a factor of three, but always behaves reasonably, no matter how
-bad the input.
-
-Lower values of @code{workFactor} reduce the amount of effort the
-standard algorithm will expend before resorting to the fallback.  You
-should set this parameter carefully; too low, and many inputs will be
-handled by the fallback algorithm and so compress rather slowly, too
-high, and your average-to-worst case compression times can become very
-large.  The default value of 30 gives reasonable behaviour over a wide
-range of circumstances.
-
-Allowable values range from 0 to 250 inclusive.  0 is a special case,
-equivalent to using the default value of 30.
-
-Note that the compressed output generated is the same regardless of
-whether or not the fallback algorithm is used.
-
-Be aware also that this parameter may disappear entirely in future
-versions of the library.  In principle it should be possible to devise a
-good way to automatically choose which algorithm to use.  Such a
-mechanism would render the parameter obsolete.
-
-Possible return values:
-@display
-      @code{BZ_CONFIG_ERROR}
-         if the library has been mis-compiled
-      @code{BZ_PARAM_ERROR} 
-         if @code{strm} is @code{NULL} 
-         or @code{blockSize} < 1 or @code{blockSize} > 9
-         or @code{verbosity} < 0 or @code{verbosity} > 4
-         or @code{workFactor} < 0 or @code{workFactor} > 250
-      @code{BZ_MEM_ERROR} 
-         if not enough memory is available
-      @code{BZ_OK} 
-         otherwise
-@end display
-Allowable next actions:
-@display
-      @code{BZ2_bzCompress} 
-         if @code{BZ_OK} is returned
-      no specific action needed in case of error
-@end display
-
-@subsection @code{BZ2_bzCompress}
-@example
-   int BZ2_bzCompress ( bz_stream *strm, int action );
-@end example
-Provides more input and/or output buffer space for the library.  The
-caller maintains input and output buffers, and calls @code{BZ2_bzCompress} to
-transfer data between them.
-
-Before each call to @code{BZ2_bzCompress}, @code{next_in} should point at
-the data to be compressed, and @code{avail_in} should indicate how many
-bytes the library may read.  @code{BZ2_bzCompress} updates @code{next_in},
-@code{avail_in} and @code{total_in} to reflect the number of bytes it
-has read.
-
-Similarly, @code{next_out} should point to a buffer in which the
-compressed data is to be placed, with @code{avail_out} indicating how
-much output space is available.  @code{BZ2_bzCompress} updates
-@code{next_out}, @code{avail_out} and @code{total_out} to reflect the
-number of bytes output.
-
-You may provide and remove as little or as much data as you like on each
-call of @code{BZ2_bzCompress}.  In the limit, it is acceptable to supply and
-remove data one byte at a time, although this would be terribly
-inefficient.  You should always ensure that at least one byte of output
-space is available at each call.
-
-A second purpose of @code{BZ2_bzCompress} is to request a change of mode of the
-compressed stream.  
-
-Conceptually, a compressed stream can be in one of four states: IDLE,
-RUNNING, FLUSHING and FINISHING.  Before initialisation
-(@code{BZ2_bzCompressInit}) and after termination (@code{BZ2_bzCompressEnd}), a
-stream is regarded as IDLE.
-
-Upon initialisation (@code{BZ2_bzCompressInit}), the stream is placed in the
-RUNNING state.  Subsequent calls to @code{BZ2_bzCompress} should pass
-@code{BZ_RUN} as the requested action; other actions are illegal and
-will result in @code{BZ_SEQUENCE_ERROR}.
-
-At some point, the calling program will have provided all the input data
-it wants to.  It will then want to finish up -- in effect, asking the
-library to process any data it might have buffered internally.  In this
-state, @code{BZ2_bzCompress} will no longer attempt to read data from
-@code{next_in}, but it will want to write data to @code{next_out}.
-Because the output buffer supplied by the user can be arbitrarily small,
-the finishing-up operation cannot necessarily be done with a single call
-of @code{BZ2_bzCompress}.
-
-Instead, the calling program passes @code{BZ_FINISH} as an action to
-@code{BZ2_bzCompress}.  This changes the stream's state to FINISHING.  Any
-remaining input (ie, @code{next_in[0 .. avail_in-1]}) is compressed and
-transferred to the output buffer.  To do this, @code{BZ2_bzCompress} must be
-called repeatedly until all the output has been consumed.  At that
-point, @code{BZ2_bzCompress} returns @code{BZ_STREAM_END}, and the stream's
-state is set back to IDLE.  @code{BZ2_bzCompressEnd} should then be
-called.
-
-Just to make sure the calling program does not cheat, the library makes
-a note of @code{avail_in} at the time of the first call to
-@code{BZ2_bzCompress} which has @code{BZ_FINISH} as an action (ie, at the
-time the program has announced its intention to not supply any more
-input).  By comparing this value with that of @code{avail_in} over
-subsequent calls to @code{BZ2_bzCompress}, the library can detect any
-attempts to slip in more data to compress.  Any calls for which this is
-detected will return @code{BZ_SEQUENCE_ERROR}.  This indicates a
-programming mistake which should be corrected.
-
-Instead of asking to finish, the calling program may ask
-@code{BZ2_bzCompress} to take all the remaining input, compress it and
-terminate the current (Burrows-Wheeler) compression block.  This could
-be useful for error control purposes.  The mechanism is analogous to
-that for finishing: call @code{BZ2_bzCompress} with an action of
-@code{BZ_FLUSH}, remove output data, and persist with the
-@code{BZ_FLUSH} action until the value @code{BZ_RUN} is returned.  As
-with finishing, @code{BZ2_bzCompress} detects any attempt to provide more
-input data once the flush has begun.
-
-Once the flush is complete, the stream returns to the normal RUNNING
-state.
-
-This all sounds pretty complex, but isn't really.  Here's a table
-which shows which actions are allowable in each state, what action
-will be taken, what the next state is, and what the non-error return
-values are.  Note that you can't explicitly ask what state the
-stream is in, but nor do you need to -- it can be inferred from the
-values returned by @code{BZ2_bzCompress}.
-@display
-IDLE/@code{any}           
-      Illegal.  IDLE state only exists after @code{BZ2_bzCompressEnd} or
-      before @code{BZ2_bzCompressInit}.
-      Return value = @code{BZ_SEQUENCE_ERROR}
-
-RUNNING/@code{BZ_RUN}     
-      Compress from @code{next_in} to @code{next_out} as much as possible.
-      Next state = RUNNING
-      Return value = @code{BZ_RUN_OK}
-
-RUNNING/@code{BZ_FLUSH}   
-      Remember current value of @code{next_in}.  Compress from @code{next_in}
-      to @code{next_out} as much as possible, but do not accept any more input.  
-      Next state = FLUSHING
-      Return value = @code{BZ_FLUSH_OK}
-
-RUNNING/@code{BZ_FINISH}  
-      Remember current value of @code{next_in}.  Compress from @code{next_in}
-      to @code{next_out} as much as possible, but do not accept any more input.
-      Next state = FINISHING
-      Return value = @code{BZ_FINISH_OK}
-
-FLUSHING/@code{BZ_FLUSH}  
-      Compress from @code{next_in} to @code{next_out} as much as possible, 
-      but do not accept any more input.  
-      If all the existing input has been used up and all compressed
-      output has been removed
-         Next state = RUNNING; Return value = @code{BZ_RUN_OK}
-      else
-         Next state = FLUSHING; Return value = @code{BZ_FLUSH_OK}
-
-FLUSHING/other     
-      Illegal.
-      Return value = @code{BZ_SEQUENCE_ERROR}
-
-FINISHING/@code{BZ_FINISH}  
-      Compress from @code{next_in} to @code{next_out} as much as possible,
-      but to not accept any more input.  
-      If all the existing input has been used up and all compressed
-      output has been removed
-         Next state = IDLE; Return value = @code{BZ_STREAM_END}
-      else
-         Next state = FINISHING; Return value = @code{BZ_FINISHING}
-
-FINISHING/other
-      Illegal.
-      Return value = @code{BZ_SEQUENCE_ERROR}
-@end display
-
-That still looks complicated?  Well, fair enough.  The usual sequence
-of calls for compressing a load of data is:
-@itemize @bullet
-@item Get started with @code{BZ2_bzCompressInit}.
-@item Shovel data in and shlurp out its compressed form using zero or more
-calls of @code{BZ2_bzCompress} with action = @code{BZ_RUN}.
-@item Finish up.  
-Repeatedly call @code{BZ2_bzCompress} with action = @code{BZ_FINISH}, 
-copying out the compressed output, until @code{BZ_STREAM_END} is returned.
-@item Close up and go home.  Call @code{BZ2_bzCompressEnd}.
-@end itemize
-If the data you want to compress fits into your input buffer all
-at once, you can skip the calls of @code{BZ2_bzCompress ( ..., BZ_RUN )} and 
-just do the @code{BZ2_bzCompress ( ..., BZ_FINISH )} calls.
-
-All required memory is allocated by @code{BZ2_bzCompressInit}.  The
-compression library can accept any data at all (obviously).  So you
-shouldn't get any error return values from the @code{BZ2_bzCompress} calls.
-If you do, they will be @code{BZ_SEQUENCE_ERROR}, and indicate a bug in
-your programming.
-
-Trivial other possible return values:
-@display
-      @code{BZ_PARAM_ERROR}   
-         if @code{strm} is @code{NULL}, or @code{strm->s} is @code{NULL}
-@end display
-
-@subsection @code{BZ2_bzCompressEnd}
-@example
-int BZ2_bzCompressEnd ( bz_stream *strm );
-@end example
-Releases all memory associated with a compression stream.
-
-Possible return values:
-@display
-   @code{BZ_PARAM_ERROR}    if @code{strm} is @code{NULL} or @code{strm->s} is @code{NULL}
-   @code{BZ_OK}    otherwise
-@end display
-
-
-@subsection @code{BZ2_bzDecompressInit}
-@example
-int BZ2_bzDecompressInit ( bz_stream *strm, int verbosity, int small );
-@end example
-Prepares for decompression.  As with @code{BZ2_bzCompressInit}, a
-@code{bz_stream} record should be allocated and initialised before the
-call.  Fields @code{bzalloc}, @code{bzfree} and @code{opaque} should be
-set if a custom memory allocator is required, or made @code{NULL} for
-the normal @code{malloc}/@code{free} routines.  Upon return, the internal
-state will have been initialised, and @code{total_in} and
-@code{total_out} will be zero.
-
-For the meaning of parameter @code{verbosity}, see @code{BZ2_bzCompressInit}.
-
-If @code{small} is nonzero, the library will use an alternative
-decompression algorithm which uses less memory but at the cost of
-decompressing more slowly (roughly speaking, half the speed, but the
-maximum memory requirement drops to around 2300k).  See Chapter 2 for
-more information on memory management.
-
-Note that the amount of memory needed to decompress
-a stream cannot be determined until the stream's header has been read,
-so even if @code{BZ2_bzDecompressInit} succeeds, a subsequent
-@code{BZ2_bzDecompress} could fail with @code{BZ_MEM_ERROR}.
-
-Possible return values:
-@display
-      @code{BZ_CONFIG_ERROR}
-         if the library has been mis-compiled
-      @code{BZ_PARAM_ERROR}
-         if @code{(small != 0 && small != 1)}
-         or @code{(verbosity < 0 || verbosity > 4)}
-      @code{BZ_MEM_ERROR}
-         if insufficient memory is available
-@end display
-
-Allowable next actions:
-@display
-      @code{BZ2_bzDecompress}
-         if @code{BZ_OK} was returned
-      no specific action required in case of error
-@end display
-
- 
-
-@subsection @code{BZ2_bzDecompress}
-@example
-int BZ2_bzDecompress ( bz_stream *strm );
-@end example
-Provides more input and/out output buffer space for the library.  The
-caller maintains input and output buffers, and uses @code{BZ2_bzDecompress}
-to transfer data between them.
-
-Before each call to @code{BZ2_bzDecompress}, @code{next_in} 
-should point at the compressed data,
-and @code{avail_in} should indicate how many bytes the library
-may read.  @code{BZ2_bzDecompress} updates @code{next_in}, @code{avail_in} 
-and @code{total_in}
-to reflect the number of bytes it has read.
-
-Similarly, @code{next_out} should point to a buffer in which the uncompressed
-output is to be placed, with @code{avail_out} indicating how much output space
-is available.  @code{BZ2_bzCompress} updates @code{next_out},
-@code{avail_out} and @code{total_out} to reflect
-the number of bytes output.
-
-You may provide and remove as little or as much data as you like on
-each call of @code{BZ2_bzDecompress}.  
-In the limit, it is acceptable to
-supply and remove data one byte at a time, although this would be
-terribly inefficient.  You should always ensure that at least one
-byte of output space is available at each call.
-
-Use of @code{BZ2_bzDecompress} is simpler than @code{BZ2_bzCompress}.
-
-You should provide input and remove output as described above, and
-repeatedly call @code{BZ2_bzDecompress} until @code{BZ_STREAM_END} is
-returned.  Appearance of @code{BZ_STREAM_END} denotes that
-@code{BZ2_bzDecompress} has detected the logical end of the compressed
-stream.  @code{BZ2_bzDecompress} will not produce @code{BZ_STREAM_END} until
-all output data has been placed into the output buffer, so once
-@code{BZ_STREAM_END} appears, you are guaranteed to have available all
-the decompressed output, and @code{BZ2_bzDecompressEnd} can safely be
-called.
-
-If case of an error return value, you should call @code{BZ2_bzDecompressEnd}
-to clean up and release memory.
-
-Possible return values:
-@display
-      @code{BZ_PARAM_ERROR}
-         if @code{strm} is @code{NULL} or @code{strm->s} is @code{NULL}
-         or @code{strm->avail_out < 1}
-      @code{BZ_DATA_ERROR}
-         if a data integrity error is detected in the compressed stream
-      @code{BZ_DATA_ERROR_MAGIC}
-         if the compressed stream doesn't begin with the right magic bytes
-      @code{BZ_MEM_ERROR}
-         if there wasn't enough memory available
-      @code{BZ_STREAM_END}
-         if the logical end of the data stream was detected and all
-         output in has been consumed, eg @code{s->avail_out > 0}
-      @code{BZ_OK}
-         otherwise
-@end display
-Allowable next actions:
-@display
-      @code{BZ2_bzDecompress}
-         if @code{BZ_OK} was returned
-      @code{BZ2_bzDecompressEnd}
-         otherwise
-@end display
-
-
-@subsection @code{BZ2_bzDecompressEnd}
-@example
-int BZ2_bzDecompressEnd ( bz_stream *strm );
-@end example
-Releases all memory associated with a decompression stream.
-
-Possible return values:
-@display
-      @code{BZ_PARAM_ERROR}
-         if @code{strm} is @code{NULL} or @code{strm->s} is @code{NULL}
-      @code{BZ_OK}
-         otherwise
-@end display
-
-Allowable next actions:
-@display
-      None.
-@end display
-
-
-@section High-level interface
-
-This interface provides functions for reading and writing 
-@code{bzip2} format files.  First, some general points.
-
-@itemize @bullet
-@item All of the functions take an @code{int*} first argument,
-  @code{bzerror}.
-  After each call, @code{bzerror} should be consulted first to determine
-  the outcome of the call.  If @code{bzerror} is @code{BZ_OK}, 
-  the call completed
-  successfully, and only then should the return value of the function
-  (if any) be consulted.  If @code{bzerror} is @code{BZ_IO_ERROR}, 
-  there was an error
-  reading/writing the underlying compressed file, and you should
-  then consult @code{errno}/@code{perror} to determine the 
-  cause of the difficulty.
-  @code{bzerror} may also be set to various other values; precise details are
-  given on a per-function basis below.
-@item If @code{bzerror} indicates an error 
-  (ie, anything except @code{BZ_OK} and @code{BZ_STREAM_END}),
-  you should immediately call @code{BZ2_bzReadClose} (or @code{BZ2_bzWriteClose},
-  depending on whether you are attempting to read or to write)
-  to free up all resources associated
-  with the stream.  Once an error has been indicated, behaviour of all calls
-  except @code{BZ2_bzReadClose} (@code{BZ2_bzWriteClose}) is undefined.  
-  The implication is that (1) @code{bzerror} should
-  be checked after each call, and (2) if @code{bzerror} indicates an error, 
-  @code{BZ2_bzReadClose} (@code{BZ2_bzWriteClose}) should then be called to clean up.
-@item The @code{FILE*} arguments passed to
-   @code{BZ2_bzReadOpen}/@code{BZ2_bzWriteOpen}  
-  should be set to binary mode.
-  Most Unix systems will do this by default, but other platforms,
-  including Windows and Mac, will not.  If you omit this, you may
-  encounter problems when moving code to new platforms.
-@item Memory allocation requests are handled by
-  @code{malloc}/@code{free}.  
-  At present
-  there is no facility for user-defined memory allocators in the file I/O
-  functions (could easily be added, though).
-@end itemize
-
-
-
-@subsection @code{BZ2_bzReadOpen}
-@example
-   typedef void BZFILE;
-
-   BZFILE *BZ2_bzReadOpen ( int *bzerror, FILE *f, 
-                            int small, int verbosity,
-                            void *unused, int nUnused );
-@end example
-Prepare to read compressed data from file handle @code{f}.  @code{f}
-should refer to a file which has been opened for reading, and for which
-the error indicator (@code{ferror(f)})is not set.  If @code{small} is 1,
-the library will try to decompress using less memory, at the expense of
-speed.
-
-For reasons explained below, @code{BZ2_bzRead} will decompress the
-@code{nUnused} bytes starting at @code{unused}, before starting to read
-from the file @code{f}.  At most @code{BZ_MAX_UNUSED} bytes may be
-supplied like this.  If this facility is not required, you should pass
-@code{NULL} and @code{0} for @code{unused} and n@code{Unused}
-respectively.
-
-For the meaning of parameters @code{small} and @code{verbosity},
-see @code{BZ2_bzDecompressInit}.
-
-The amount of memory needed to decompress a file cannot be determined
-until the file's header has been read.  So it is possible that
-@code{BZ2_bzReadOpen} returns @code{BZ_OK} but a subsequent call of
-@code{BZ2_bzRead} will return @code{BZ_MEM_ERROR}.
-
-Possible assignments to @code{bzerror}:
-@display
-      @code{BZ_CONFIG_ERROR}
-         if the library has been mis-compiled
-      @code{BZ_PARAM_ERROR}
-         if @code{f} is @code{NULL} 
-         or @code{small} is neither @code{0} nor @code{1}                 
-         or @code{(unused == NULL && nUnused != 0)}
-         or @code{(unused != NULL && !(0 <= nUnused <= BZ_MAX_UNUSED))}
-      @code{BZ_IO_ERROR}    
-         if @code{ferror(f)} is nonzero
-      @code{BZ_MEM_ERROR}   
-         if insufficient memory is available
-      @code{BZ_OK}
-         otherwise.
-@end display
-
-Possible return values:
-@display
-      Pointer to an abstract @code{BZFILE}        
-         if @code{bzerror} is @code{BZ_OK}   
-      @code{NULL}
-         otherwise
-@end display
-
-Allowable next actions:
-@display
-      @code{BZ2_bzRead}
-         if @code{bzerror} is @code{BZ_OK}   
-      @code{BZ2_bzClose} 
-         otherwise
-@end display
-
-
-@subsection @code{BZ2_bzRead}
-@example
-   int BZ2_bzRead ( int *bzerror, BZFILE *b, void *buf, int len );
-@end example
-Reads up to @code{len} (uncompressed) bytes from the compressed file 
-@code{b} into
-the buffer @code{buf}.  If the read was successful, 
-@code{bzerror} is set to @code{BZ_OK}
-and the number of bytes read is returned.  If the logical end-of-stream
-was detected, @code{bzerror} will be set to @code{BZ_STREAM_END}, 
-and the number
-of bytes read is returned.  All other @code{bzerror} values denote an error.
-
-@code{BZ2_bzRead} will supply @code{len} bytes,
-unless the logical stream end is detected
-or an error occurs.  Because of this, it is possible to detect the 
-stream end by observing when the number of bytes returned is 
-less than the number
-requested.  Nevertheless, this is regarded as inadvisable; you should
-instead check @code{bzerror} after every call and watch out for
-@code{BZ_STREAM_END}.
-
-Internally, @code{BZ2_bzRead} copies data from the compressed file in chunks
-of size @code{BZ_MAX_UNUSED} bytes
-before decompressing it.  If the file contains more bytes than strictly
-needed to reach the logical end-of-stream, @code{BZ2_bzRead} will almost certainly
-read some of the trailing data before signalling @code{BZ_SEQUENCE_END}.
-To collect the read but unused data once @code{BZ_SEQUENCE_END} has 
-appeared, call @code{BZ2_bzReadGetUnused} immediately before @code{BZ2_bzReadClose}.
-
-Possible assignments to @code{bzerror}:
-@display
-      @code{BZ_PARAM_ERROR}
-         if @code{b} is @code{NULL} or @code{buf} is @code{NULL} or @code{len < 0}
-      @code{BZ_SEQUENCE_ERROR} 
-         if @code{b} was opened with @code{BZ2_bzWriteOpen}
-      @code{BZ_IO_ERROR} 
-         if there is an error reading from the compressed file
-      @code{BZ_UNEXPECTED_EOF} 
-         if the compressed file ended before the logical end-of-stream was detected
-      @code{BZ_DATA_ERROR} 
-         if a data integrity error was detected in the compressed stream
-      @code{BZ_DATA_ERROR_MAGIC}
-         if the stream does not begin with the requisite header bytes (ie, is not 
-         a @code{bzip2} data file).  This is really a special case of @code{BZ_DATA_ERROR}.
-      @code{BZ_MEM_ERROR} 
-         if insufficient memory was available
-      @code{BZ_STREAM_END} 
-         if the logical end of stream was detected.
-      @code{BZ_OK}
-         otherwise.
-@end display
-
-Possible return values:
-@display
-      number of bytes read
-         if @code{bzerror} is @code{BZ_OK} or @code{BZ_STREAM_END}
-      undefined
-         otherwise
-@end display
-
-Allowable next actions:
-@display
-      collect data from @code{buf}, then @code{BZ2_bzRead} or @code{BZ2_bzReadClose}
-         if @code{bzerror} is @code{BZ_OK} 
-      collect data from @code{buf}, then @code{BZ2_bzReadClose} or @code{BZ2_bzReadGetUnused} 
-         if @code{bzerror} is @code{BZ_SEQUENCE_END}   
-      @code{BZ2_bzReadClose} 
-         otherwise
-@end display
-
-
-
-@subsection @code{BZ2_bzReadGetUnused}
-@example
-   void BZ2_bzReadGetUnused ( int* bzerror, BZFILE *b, 
-                              void** unused, int* nUnused );
-@end example
-Returns data which was read from the compressed file but was not needed
-to get to the logical end-of-stream.  @code{*unused} is set to the address
-of the data, and @code{*nUnused} to the number of bytes.  @code{*nUnused} will
-be set to a value between @code{0} and @code{BZ_MAX_UNUSED} inclusive.
-
-This function may only be called once @code{BZ2_bzRead} has signalled 
-@code{BZ_STREAM_END} but before @code{BZ2_bzReadClose}.
-
-Possible assignments to @code{bzerror}:
-@display
-      @code{BZ_PARAM_ERROR} 
-         if @code{b} is @code{NULL} 
-         or @code{unused} is @code{NULL} or @code{nUnused} is @code{NULL}
-      @code{BZ_SEQUENCE_ERROR} 
-         if @code{BZ_STREAM_END} has not been signalled
-         or if @code{b} was opened with @code{BZ2_bzWriteOpen}
-     @code{BZ_OK}
-         otherwise
-@end display
-
-Allowable next actions:
-@display 
-      @code{BZ2_bzReadClose}
-@end display
-
-
-@subsection @code{BZ2_bzReadClose}
-@example
-   void BZ2_bzReadClose ( int *bzerror, BZFILE *b );
-@end example
-Releases all memory pertaining to the compressed file @code{b}.  
-@code{BZ2_bzReadClose} does not call @code{fclose} on the underlying file
-handle, so you should do that yourself if appropriate.
-@code{BZ2_bzReadClose} should be called to clean up after all error
-situations.
-
-Possible assignments to @code{bzerror}:
-@display
-      @code{BZ_SEQUENCE_ERROR} 
-         if @code{b} was opened with @code{BZ2_bzOpenWrite} 
-      @code{BZ_OK} 
-         otherwise
-@end display
-
-Allowable next actions:
-@display
-      none
-@end display
-
-
-
-@subsection @code{BZ2_bzWriteOpen}
-@example
-   BZFILE *BZ2_bzWriteOpen ( int *bzerror, FILE *f, 
-                             int blockSize100k, int verbosity,
-                             int workFactor );
-@end example
-Prepare to write compressed data to file handle @code{f}.  
-@code{f} should refer to
-a file which has been opened for writing, and for which the error
-indicator (@code{ferror(f)})is not set.  
-
-For the meaning of parameters @code{blockSize100k},
-@code{verbosity} and @code{workFactor}, see
-@* @code{BZ2_bzCompressInit}.
-
-All required memory is allocated at this stage, so if the call
-completes successfully, @code{BZ_MEM_ERROR} cannot be signalled by a
-subsequent call to @code{BZ2_bzWrite}.
-
-Possible assignments to @code{bzerror}:
-@display 
-      @code{BZ_CONFIG_ERROR}
-         if the library has been mis-compiled
-      @code{BZ_PARAM_ERROR} 
-         if @code{f} is @code{NULL} 
-         or @code{blockSize100k < 1} or @code{blockSize100k > 9}
-      @code{BZ_IO_ERROR} 
-         if @code{ferror(f)} is nonzero
-      @code{BZ_MEM_ERROR} 
-         if insufficient memory is available
-      @code{BZ_OK} 
-         otherwise
-@end display
-
-Possible return values:
-@display
-      Pointer to an abstract @code{BZFILE}  
-         if @code{bzerror} is @code{BZ_OK}   
-      @code{NULL} 
-         otherwise
-@end display
-
-Allowable next actions:
-@display
-      @code{BZ2_bzWrite} 
-         if @code{bzerror} is @code{BZ_OK} 
-         (you could go directly to @code{BZ2_bzWriteClose}, but this would be pretty pointless)
-      @code{BZ2_bzWriteClose} 
-         otherwise
-@end display
-
-
-
-@subsection @code{BZ2_bzWrite}
-@example
-   void BZ2_bzWrite ( int *bzerror, BZFILE *b, void *buf, int len );
-@end example
-Absorbs @code{len} bytes from the buffer @code{buf}, eventually to be
-compressed and written to the file.
-
-Possible assignments to @code{bzerror}:
-@display
-      @code{BZ_PARAM_ERROR} 
-         if @code{b} is @code{NULL} or @code{buf} is @code{NULL} or @code{len < 0}
-      @code{BZ_SEQUENCE_ERROR} 
-         if b was opened with @code{BZ2_bzReadOpen}
-      @code{BZ_IO_ERROR} 
-         if there is an error writing the compressed file.
-      @code{BZ_OK} 
-         otherwise
-@end display
-
-
-
-
-@subsection @code{BZ2_bzWriteClose}
-@example
-   void BZ2_bzWriteClose ( int *bzerror, BZFILE* f,
-                           int abandon,
-                           unsigned int* nbytes_in,
-                           unsigned int* nbytes_out );
-
-   void BZ2_bzWriteClose64 ( int *bzerror, BZFILE* f,
-                             int abandon,
-                             unsigned int* nbytes_in_lo32,
-                             unsigned int* nbytes_in_hi32,
-                             unsigned int* nbytes_out_lo32,
-                             unsigned int* nbytes_out_hi32 );
-@end example
-
-Compresses and flushes to the compressed file all data so far supplied
-by @code{BZ2_bzWrite}.  The logical end-of-stream markers are also written, so
-subsequent calls to @code{BZ2_bzWrite} are illegal.  All memory associated 
-with the compressed file @code{b} is released.  
-@code{fflush} is called on the
-compressed file, but it is not @code{fclose}'d.
-
-If @code{BZ2_bzWriteClose} is called to clean up after an error, the only
-action is to release the memory.  The library records the error codes
-issued by previous calls, so this situation will be detected
-automatically.  There is no attempt to complete the compression
-operation, nor to @code{fflush} the compressed file.  You can force this
-behaviour to happen even in the case of no error, by passing a nonzero
-value to @code{abandon}.
-
-If @code{nbytes_in} is non-null, @code{*nbytes_in} will be set to be the
-total volume of uncompressed data handled.  Similarly, @code{nbytes_out}
-will be set to the total volume of compressed data written.  For 
-compatibility with older versions of the library, @code{BZ2_bzWriteClose}
-only yields the lower 32 bits of these counts.  Use
-@code{BZ2_bzWriteClose64} if you want the full 64 bit counts.  These
-two functions are otherwise absolutely identical.
-
-
-Possible assignments to @code{bzerror}:
-@display
-      @code{BZ_SEQUENCE_ERROR} 
-         if @code{b} was opened with @code{BZ2_bzReadOpen}
-      @code{BZ_IO_ERROR} 
-         if there is an error writing the compressed file
-      @code{BZ_OK} 
-         otherwise
-@end display
-
-@subsection Handling embedded compressed data streams
-
-The high-level library facilitates use of
-@code{bzip2} data streams which form some part of a surrounding, larger
-data stream.
-@itemize @bullet
-@item For writing, the library takes an open file handle, writes
-compressed data to it, @code{fflush}es it but does not @code{fclose} it.
-The calling application can write its own data before and after the
-compressed data stream, using that same file handle.
-@item Reading is more complex, and the facilities are not as general
-as they could be since generality is hard to reconcile with efficiency.
-@code{BZ2_bzRead} reads from the compressed file in blocks of size
-@code{BZ_MAX_UNUSED} bytes, and in doing so probably will overshoot
-the logical end of compressed stream.
-To recover this data once decompression has
-ended, call @code{BZ2_bzReadGetUnused} after the last call of @code{BZ2_bzRead}
-(the one returning @code{BZ_STREAM_END}) but before calling
-@code{BZ2_bzReadClose}.
-@end itemize
-
-This mechanism makes it easy to decompress multiple @code{bzip2}
-streams placed end-to-end.  As the end of one stream, when @code{BZ2_bzRead}
-returns @code{BZ_STREAM_END}, call @code{BZ2_bzReadGetUnused} to collect the
-unused data (copy it into your own buffer somewhere).  
-That data forms the start of the next compressed stream.
-To start uncompressing that next stream, call @code{BZ2_bzReadOpen} again,
-feeding in the unused data via the @code{unused}/@code{nUnused}
-parameters.
-Keep doing this until @code{BZ_STREAM_END} return coincides with the
-physical end of file (@code{feof(f)}).  In this situation
-@code{BZ2_bzReadGetUnused}
-will of course return no data.
-
-This should give some feel for how the high-level interface can be used.
-If you require extra flexibility, you'll have to bite the bullet and get
-to grips with the low-level interface.
-
-@subsection Standard file-reading/writing code
-Here's how you'd write data to a compressed file:
-@example @code
-FILE*   f;
-BZFILE* b;
-int     nBuf;
-char    buf[ /* whatever size you like */ ];
-int     bzerror;
-int     nWritten;
-
-f = fopen ( "myfile.bz2", "w" );
-if (!f) @{
-   /* handle error */
-@}
-b = BZ2_bzWriteOpen ( &bzerror, f, 9 );
-if (bzerror != BZ_OK) @{
-   BZ2_bzWriteClose ( b );
-   /* handle error */
-@}
-
-while ( /* condition */ ) @{
-   /* get data to write into buf, and set nBuf appropriately */
-   nWritten = BZ2_bzWrite ( &bzerror, b, buf, nBuf );
-   if (bzerror == BZ_IO_ERROR) @{ 
-      BZ2_bzWriteClose ( &bzerror, b );
-      /* handle error */
-   @}
-@}
-
-BZ2_bzWriteClose ( &bzerror, b );
-if (bzerror == BZ_IO_ERROR) @{
-   /* handle error */
-@}
-@end example
-And to read from a compressed file:
-@example
-FILE*   f;
-BZFILE* b;
-int     nBuf;
-char    buf[ /* whatever size you like */ ];
-int     bzerror;
-int     nWritten;
-
-f = fopen ( "myfile.bz2", "r" );
-if (!f) @{
-   /* handle error */
-@}
-b = BZ2_bzReadOpen ( &bzerror, f, 0, NULL, 0 );
-if (bzerror != BZ_OK) @{
-   BZ2_bzReadClose ( &bzerror, b );
-   /* handle error */
-@}
-
-bzerror = BZ_OK;
-while (bzerror == BZ_OK && /* arbitrary other conditions */) @{
-   nBuf = BZ2_bzRead ( &bzerror, b, buf, /* size of buf */ );
-   if (bzerror == BZ_OK) @{
-      /* do something with buf[0 .. nBuf-1] */
-   @}
-@}
-if (bzerror != BZ_STREAM_END) @{
-   BZ2_bzReadClose ( &bzerror, b );
-   /* handle error */
-@} else @{
-   BZ2_bzReadClose ( &bzerror );
-@}
-@end example
-
-
-
-@section Utility functions
-@subsection @code{BZ2_bzBuffToBuffCompress}
-@example
-   int BZ2_bzBuffToBuffCompress( char*         dest,
-                                 unsigned int* destLen,
-                                 char*         source,
-                                 unsigned int  sourceLen,
-                                 int           blockSize100k,
-                                 int           verbosity,
-                                 int           workFactor );
-@end example
-Attempts to compress the data in @code{source[0 .. sourceLen-1]}
-into the destination buffer, @code{dest[0 .. *destLen-1]}.
-If the destination buffer is big enough, @code{*destLen} is
-set to the size of the compressed data, and @code{BZ_OK} is
-returned.  If the compressed data won't fit, @code{*destLen}
-is unchanged, and @code{BZ_OUTBUFF_FULL} is returned.
-
-Compression in this manner is a one-shot event, done with a single call
-to this function.  The resulting compressed data is a complete
-@code{bzip2} format data stream.  There is no mechanism for making
-additional calls to provide extra input data.  If you want that kind of
-mechanism, use the low-level interface.
-
-For the meaning of parameters @code{blockSize100k}, @code{verbosity}
-and @code{workFactor}, @* see @code{BZ2_bzCompressInit}.
-
-To guarantee that the compressed data will fit in its buffer, allocate
-an output buffer of size 1% larger than the uncompressed data, plus
-six hundred extra bytes.
-
-@code{BZ2_bzBuffToBuffDecompress} will not write data at or
-beyond @code{dest[*destLen]}, even in case of buffer overflow.
-
-Possible return values:
-@display
-      @code{BZ_CONFIG_ERROR}
-         if the library has been mis-compiled
-      @code{BZ_PARAM_ERROR} 
-         if @code{dest} is @code{NULL} or @code{destLen} is @code{NULL}
-         or @code{blockSize100k < 1} or @code{blockSize100k > 9}
-         or @code{verbosity < 0} or @code{verbosity > 4} 
-         or @code{workFactor < 0} or @code{workFactor > 250}
-      @code{BZ_MEM_ERROR}
-         if insufficient memory is available 
-      @code{BZ_OUTBUFF_FULL}
-         if the size of the compressed data exceeds @code{*destLen}
-      @code{BZ_OK} 
-         otherwise
-@end display
-
-
-
-@subsection @code{BZ2_bzBuffToBuffDecompress}
-@example
-   int BZ2_bzBuffToBuffDecompress ( char*         dest,
-                                    unsigned int* destLen,
-                                    char*         source,
-                                    unsigned int  sourceLen,
-                                    int           small,
-                                    int           verbosity );
-@end example
-Attempts to decompress the data in @code{source[0 .. sourceLen-1]}
-into the destination buffer, @code{dest[0 .. *destLen-1]}.
-If the destination buffer is big enough, @code{*destLen} is
-set to the size of the uncompressed data, and @code{BZ_OK} is
-returned.  If the compressed data won't fit, @code{*destLen}
-is unchanged, and @code{BZ_OUTBUFF_FULL} is returned.
-
-@code{source} is assumed to hold a complete @code{bzip2} format
-data stream.  @* @code{BZ2_bzBuffToBuffDecompress} tries to decompress
-the entirety of the stream into the output buffer.
-
-For the meaning of parameters @code{small} and @code{verbosity},
-see @code{BZ2_bzDecompressInit}.
-
-Because the compression ratio of the compressed data cannot be known in
-advance, there is no easy way to guarantee that the output buffer will
-be big enough.  You may of course make arrangements in your code to
-record the size of the uncompressed data, but such a mechanism is beyond
-the scope of this library.
-
-@code{BZ2_bzBuffToBuffDecompress} will not write data at or
-beyond @code{dest[*destLen]}, even in case of buffer overflow.
-
-Possible return values:
-@display
-      @code{BZ_CONFIG_ERROR}
-         if the library has been mis-compiled
-      @code{BZ_PARAM_ERROR} 
-         if @code{dest} is @code{NULL} or @code{destLen} is @code{NULL}
-         or @code{small != 0 && small != 1}
-         or @code{verbosity < 0} or @code{verbosity > 4} 
-      @code{BZ_MEM_ERROR}
-         if insufficient memory is available 
-      @code{BZ_OUTBUFF_FULL}
-         if the size of the compressed data exceeds @code{*destLen}
-      @code{BZ_DATA_ERROR}
-         if a data integrity error was detected in the compressed data
-      @code{BZ_DATA_ERROR_MAGIC}
-         if the compressed data doesn't begin with the right magic bytes
-      @code{BZ_UNEXPECTED_EOF}
-         if the compressed data ends unexpectedly
-      @code{BZ_OK} 
-         otherwise
-@end display
-
-
-
-@section @code{zlib} compatibility functions
-Yoshioka Tsuneo has contributed some functions to
-give better @code{zlib} compatibility.  These functions are
-@code{BZ2_bzopen}, @code{BZ2_bzread}, @code{BZ2_bzwrite}, @code{BZ2_bzflush},
-@code{BZ2_bzclose},
-@code{BZ2_bzerror} and @code{BZ2_bzlibVersion}.
-These functions are not (yet) officially part of
-the library.  If they break, you get to keep all the pieces.
-Nevertheless, I think they work ok.
-@example
-typedef void BZFILE;
-
-const char * BZ2_bzlibVersion ( void );
-@end example
-Returns a string indicating the library version.
-@example
-BZFILE * BZ2_bzopen  ( const char *path, const char *mode );
-BZFILE * BZ2_bzdopen ( int        fd,    const char *mode );
-@end example
-Opens a @code{.bz2} file for reading or writing, using either its name
-or a pre-existing file descriptor. 
-Analogous to @code{fopen} and @code{fdopen}.
-@example         
-int BZ2_bzread  ( BZFILE* b, void* buf, int len );
-int BZ2_bzwrite ( BZFILE* b, void* buf, int len );
-@end example
-Reads/writes data from/to a previously opened @code{BZFILE}.
-Analogous to @code{fread} and @code{fwrite}.
-@example
-int  BZ2_bzflush ( BZFILE* b );
-void BZ2_bzclose ( BZFILE* b );
-@end example
-Flushes/closes a @code{BZFILE}.  @code{BZ2_bzflush} doesn't actually do
-anything.  Analogous to @code{fflush} and @code{fclose}.
-
-@example 
-const char * BZ2_bzerror ( BZFILE *b, int *errnum )
-@end example
-Returns a string describing the more recent error status of
-@code{b}, and also sets @code{*errnum} to its numerical value.
-
-
-@section Using the library in a @code{stdio}-free environment
-
-@subsection Getting rid of @code{stdio}
-
-In a deeply embedded application, you might want to use just
-the memory-to-memory functions.  You can do this conveniently
-by compiling the library with preprocessor symbol @code{BZ_NO_STDIO}
-defined.  Doing this gives you a library containing only the following
-eight functions:
-
-@code{BZ2_bzCompressInit}, @code{BZ2_bzCompress}, @code{BZ2_bzCompressEnd} @*
-@code{BZ2_bzDecompressInit}, @code{BZ2_bzDecompress}, @code{BZ2_bzDecompressEnd} @*
-@code{BZ2_bzBuffToBuffCompress}, @code{BZ2_bzBuffToBuffDecompress}
-
-When compiled like this, all functions will ignore @code{verbosity}
-settings.
-
-@subsection Critical error handling
-@code{libbzip2} contains a number of internal assertion checks which
-should, needless to say, never be activated.  Nevertheless, if an
-assertion should fail, behaviour depends on whether or not the library
-was compiled with @code{BZ_NO_STDIO} set.
-
-For a normal compile, an assertion failure yields the message
-@example
-   bzip2/libbzip2: internal error number N.
-   This is a bug in bzip2/libbzip2, 1.0 of 21-Mar-2000.
-   Please report it to me at: jseward@@acm.org.  If this happened
-   when you were using some program which uses libbzip2 as a
-   component, you should also report this bug to the author(s)
-   of that program.  Please make an effort to report this bug;
-   timely and accurate bug reports eventually lead to higher
-   quality software.  Thanks.  Julian Seward, 21 March 2000.
-@end example
-where @code{N} is some error code number.  @code{exit(3)}
-is then called.
-
-For a @code{stdio}-free library, assertion failures result
-in a call to a function declared as:
-@example
-   extern void bz_internal_error ( int errcode );
-@end example
-The relevant code is passed as a parameter.  You should supply
-such a function.
-
-In either case, once an assertion failure has occurred, any 
-@code{bz_stream} records involved can be regarded as invalid.
-You should not attempt to resume normal operation with them.
-
-You may, of course, change critical error handling to suit
-your needs.  As I said above, critical errors indicate bugs
-in the library and should not occur.  All "normal" error
-situations are indicated via error return codes from functions,
-and can be recovered from.
-
-
-@section Making a Windows DLL
-Everything related to Windows has been contributed by Yoshioka Tsuneo
-@* (@code{QWF00133@@niftyserve.or.jp} /
-@code{tsuneo-y@@is.aist-nara.ac.jp}), so you should send your queries to
-him (but perhaps Cc: me, @code{jseward@@acm.org}).
-
-My vague understanding of what to do is: using Visual C++ 5.0,
-open the project file @code{libbz2.dsp}, and build.  That's all.
-
-If you can't
-open the project file for some reason, make a new one, naming these files:
-@code{blocksort.c}, @code{bzlib.c}, @code{compress.c}, 
-@code{crctable.c}, @code{decompress.c}, @code{huffman.c}, @*
-@code{randtable.c} and @code{libbz2.def}.  You will also need
-to name the header files @code{bzlib.h} and @code{bzlib_private.h}.
-
-If you don't use VC++, you may need to define the proprocessor symbol
-@code{_WIN32}. 
-
-Finally, @code{dlltest.c} is a sample program using the DLL.  It has a
-project file, @code{dlltest.dsp}.
-
-If you just want a makefile for Visual C, have a look at
-@code{makefile.msc}.
-
-Be aware that if you compile @code{bzip2} itself on Win32, you must set
-@code{BZ_UNIX} to 0 and @code{BZ_LCCWIN32} to 1, in the file
-@code{bzip2.c}, before compiling.  Otherwise the resulting binary won't
-work correctly.
-
-I haven't tried any of this stuff myself, but it all looks plausible.
-
-
-
-@chapter Miscellanea
-
-These are just some random thoughts of mine.  Your mileage may
-vary.
-
-@section Limitations of the compressed file format
-@code{bzip2-1.0}, @code{0.9.5} and @code{0.9.0}
-use exactly the same file format as the previous
-version, @code{bzip2-0.1}.  This decision was made in the interests of
-stability.  Creating yet another incompatible compressed file format
-would create further confusion and disruption for users.
-
-Nevertheless, this is not a painless decision.  Development
-work since the release of @code{bzip2-0.1} in August 1997
-has shown complexities in the file format which slow down
-decompression and, in retrospect, are unnecessary.  These are:
-@itemize @bullet
-@item The run-length encoder, which is the first of the 
-      compression transformations, is entirely irrelevant.
-      The original purpose was to protect the sorting algorithm
-      from the very worst case input: a string of repeated
-      symbols.  But algorithm steps Q6a and Q6b in the original
-      Burrows-Wheeler technical report (SRC-124) show how
-      repeats can be handled without difficulty in block
-      sorting.
-@item The randomisation mechanism doesn't really need to be
-      there.  Udi Manber and Gene Myers published a suffix
-      array construction algorithm a few years back, which
-      can be employed to sort any block, no matter how 
-      repetitive, in O(N log N) time.  Subsequent work by
-      Kunihiko Sadakane has produced a derivative O(N (log N)^2) 
-      algorithm which usually outperforms the Manber-Myers
-      algorithm.
-
-      I could have changed to Sadakane's algorithm, but I find
-      it to be slower than @code{bzip2}'s existing algorithm for
-      most inputs, and the randomisation mechanism protects
-      adequately against bad cases.  I didn't think it was
-      a good tradeoff to make.  Partly this is due to the fact
-      that I was not flooded with email complaints about
-      @code{bzip2-0.1}'s performance on repetitive data, so
-      perhaps it isn't a problem for real inputs.
-
-      Probably the best long-term solution,
-      and the one I have incorporated into 0.9.5 and above,
-      is to use the existing sorting
-      algorithm initially, and fall back to a O(N (log N)^2)
-      algorithm if the standard algorithm gets into difficulties.
-@item The compressed file format was never designed to be
-      handled by a library, and I have had to jump though
-      some hoops to produce an efficient implementation of
-      decompression.  It's a bit hairy.  Try passing
-      @code{decompress.c} through the C preprocessor 
-      and you'll see what I mean.  Much of this complexity
-      could have been avoided if the compressed size of
-      each block of data was recorded in the data stream.
-@item An Adler-32 checksum, rather than a CRC32 checksum,
-      would be faster to compute.
-@end itemize
-It would be fair to say that the @code{bzip2} format was frozen
-before I properly and fully understood the performance
-consequences of doing so.
-
-Improvements which I was able to incorporate into
-0.9.0, despite using the same file format, are:
-@itemize @bullet
-@item Single array implementation of the inverse BWT.  This
-      significantly speeds up decompression, presumably
-      because it reduces the number of cache misses.
-@item Faster inverse MTF transform for large MTF values.  The
-      new implementation is based on the notion of sliding blocks
-      of values.
-@item @code{bzip2-0.9.0} now reads and writes files with @code{fread}
-      and @code{fwrite}; version 0.1 used @code{putc} and @code{getc}.
-      Duh!  Well, you live and learn.
-
-@end itemize
-Further ahead, it would be nice 
-to be able to do random access into files.  This will 
-require some careful design of compressed file formats.
-
-
-
-@section Portability issues
-After some consideration, I have decided not to use
-GNU @code{autoconf} to configure 0.9.5 or 1.0.
-
-@code{autoconf}, admirable and wonderful though it is, 
-mainly assists with portability problems between Unix-like
-platforms.  But @code{bzip2} doesn't have much in the way
-of portability problems on Unix; most of the difficulties appear
-when porting to the Mac, or to Microsoft's operating systems.
-@code{autoconf} doesn't help in those cases, and brings in a 
-whole load of new complexity.
-
-Most people should be able to compile the library and program
-under Unix straight out-of-the-box, so to speak, especially 
-if you have a version of GNU C available.
-
-There are a couple of @code{__inline__} directives in the code.  GNU C
-(@code{gcc}) should be able to handle them.  If you're not using
-GNU C, your C compiler shouldn't see them at all.
-If your compiler does, for some reason, see them and doesn't
-like them, just @code{#define} @code{__inline__} to be @code{/* */}.  One
-easy way to do this is to compile with the flag @code{-D__inline__=}, 
-which should be understood by most Unix compilers.
-
-If you still have difficulties, try compiling with the macro
-@code{BZ_STRICT_ANSI} defined.  This should enable you to build the
-library in a strictly ANSI compliant environment.  Building the program
-itself like this is dangerous and not supported, since you remove
-@code{bzip2}'s checks against compressing directories, symbolic links,
-devices, and other not-really-a-file entities.  This could cause
-filesystem corruption!
-
-One other thing: if you create a @code{bzip2} binary for public
-distribution, please try and link it statically (@code{gcc -s}).  This
-avoids all sorts of library-version issues that others may encounter
-later on.
-
-If you build @code{bzip2} on Win32, you must set @code{BZ_UNIX} to 0 and
-@code{BZ_LCCWIN32} to 1, in the file @code{bzip2.c}, before compiling.
-Otherwise the resulting binary won't work correctly.
-
-
-
-@section Reporting bugs
-I tried pretty hard to make sure @code{bzip2} is
-bug free, both by design and by testing.  Hopefully
-you'll never need to read this section for real.
-
-Nevertheless, if @code{bzip2} dies with a segmentation
-fault, a bus error or an internal assertion failure, it
-will ask you to email me a bug report.  Experience with
-version 0.1 shows that almost all these problems can
-be traced to either compiler bugs or hardware problems.
-@itemize @bullet
-@item
-Recompile the program with no optimisation, and see if it
-works.  And/or try a different compiler.
-I heard all sorts of stories about various flavours
-of GNU C (and other compilers) generating bad code for
-@code{bzip2}, and I've run across two such examples myself.
-
-2.7.X versions of GNU C are known to generate bad code from
-time to time, at high optimisation levels.  
-If you get problems, try using the flags
-@code{-O2} @code{-fomit-frame-pointer} @code{-fno-strength-reduce}.
-You should specifically @emph{not} use @code{-funroll-loops}.
-
-You may notice that the Makefile runs six tests as part of
-the build process.  If the program passes all of these, it's
-a pretty good (but not 100%) indication that the compiler has
-done its job correctly.
-@item
-If @code{bzip2} crashes randomly, and the crashes are not
-repeatable, you may have a flaky memory subsystem.  @code{bzip2}
-really hammers your memory hierarchy, and if it's a bit marginal,
-you may get these problems.  Ditto if your disk or I/O subsystem
-is slowly failing.  Yup, this really does happen.
-
-Try using a different machine of the same type, and see if
-you can repeat the problem.
-@item This isn't really a bug, but ... If @code{bzip2} tells
-you your file is corrupted on decompression, and you
-obtained the file via FTP, there is a possibility that you
-forgot to tell FTP to do a binary mode transfer.  That absolutely
-will cause the file to be non-decompressible.  You'll have to transfer
-it again.
-@end itemize
-
-If you've incorporated @code{libbzip2} into your own program
-and are getting problems, please, please, please, check that the 
-parameters you are passing in calls to the library, are
-correct, and in accordance with what the documentation says
-is allowable.  I have tried to make the library robust against
-such problems, but I'm sure I haven't succeeded.
-
-Finally, if the above comments don't help, you'll have to send
-me a bug report.  Now, it's just amazing how many people will 
-send me a bug report saying something like
-@display
-   bzip2 crashed with segmentation fault on my machine
-@end display
-and absolutely nothing else.  Needless to say, a such a report
-is @emph{totally, utterly, completely and comprehensively 100% useless; 
-a waste of your time, my time, and net bandwidth}.
-With no details at all, there's no way I can possibly begin
-to figure out what the problem is.
-
-The rules of the game are: facts, facts, facts.  Don't omit
-them because "oh, they won't be relevant".  At the bare 
-minimum:
-@display
-   Machine type.  Operating system version.  
-   Exact version of @code{bzip2} (do @code{bzip2 -V}).  
-   Exact version of the compiler used.  
-   Flags passed to the compiler.
-@end display
-However, the most important single thing that will help me is
-the file that you were trying to compress or decompress at the
-time the problem happened.  Without that, my ability to do anything
-more than speculate about the cause, is limited.
-
-Please remember that I connect to the Internet with a modem, so
-you should contact me before mailing me huge files.
-
-
-@section Did you get the right package?
-
-@code{bzip2} is a resource hog.  It soaks up large amounts of CPU cycles
-and memory.  Also, it gives very large latencies.  In the worst case, you
-can feed many megabytes of uncompressed data into the library before
-getting any compressed output, so this probably rules out applications
-requiring interactive behaviour.
-
-These aren't faults of my implementation, I hope, but more
-an intrinsic property of the Burrows-Wheeler transform (unfortunately).  
-Maybe this isn't what you want.
-
-If you want a compressor and/or library which is faster, uses less
-memory but gets pretty good compression, and has minimal latency,
-consider Jean-loup
-Gailly's and Mark Adler's work, @code{zlib-1.1.2} and
-@code{gzip-1.2.4}.  Look for them at
-
-@code{http://www.cdrom.com/pub/infozip/zlib} and
-@code{http://www.gzip.org} respectively.
-
-For something faster and lighter still, you might try Markus F X J
-Oberhumer's @code{LZO} real-time compression/decompression library, at
-@* @code{http://wildsau.idv.uni-linz.ac.at/mfx/lzo.html}.
-
-If you want to use the @code{bzip2} algorithms to compress small blocks
-of data, 64k bytes or smaller, for example on an on-the-fly disk
-compressor, you'd be well advised not to use this library.  Instead,
-I've made a special library tuned for that kind of use.  It's part of
-@code{e2compr-0.40}, an on-the-fly disk compressor for the Linux
-@code{ext2} filesystem.  Look at
-@code{http://www.netspace.net.au/~reiter/e2compr}.
-
-
-
-@section Testing
-
-A record of the tests I've done.
-
-First, some data sets:
-@itemize @bullet
-@item B: a directory containing 6001 files, one for every length in the
-      range 0 to 6000 bytes.  The files contain random lowercase
-      letters.  18.7 megabytes.
-@item H: my home directory tree.  Documents, source code, mail files,
-      compressed data.  H contains B, and also a directory of 
-      files designed as boundary cases for the sorting; mostly very
-      repetitive, nasty files.  565 megabytes.
-@item A: directory tree holding various applications built from source:
-      @code{egcs}, @code{gcc-2.8.1}, KDE, GTK, Octave, etc.
-      2200 megabytes.
-@end itemize
-The tests conducted are as follows.  Each test means compressing 
-(a copy of) each file in the data set, decompressing it and
-comparing it against the original.
-
-First, a bunch of tests with block sizes and internal buffer
-sizes set very small, 
-to detect any problems with the
-blocking and buffering mechanisms.  
-This required modifying the source code so as to try to 
-break it.
-@enumerate
-@item Data set H, with
-      buffer size of 1 byte, and block size of 23 bytes.
-@item Data set B, buffer sizes 1 byte, block size 1 byte.
-@item As (2) but small-mode decompression.
-@item As (2) with block size 2 bytes.
-@item As (2) with block size 3 bytes.
-@item As (2) with block size 4 bytes.
-@item As (2) with block size 5 bytes.
-@item As (2) with block size 6 bytes and small-mode decompression.
-@item H with buffer size of 1 byte, but normal block
-      size (up to 900000 bytes).
-@end enumerate
-Then some tests with unmodified source code.
-@enumerate
-@item H, all settings normal.
-@item As (1), with small-mode decompress.
-@item H, compress with flag @code{-1}.
-@item H, compress with flag @code{-s}, decompress with flag @code{-s}.
-@item Forwards compatibility: H, @code{bzip2-0.1pl2} compressing,
-      @code{bzip2-0.9.5} decompressing, all settings normal.
-@item Backwards compatibility:  H, @code{bzip2-0.9.5} compressing,
-      @code{bzip2-0.1pl2} decompressing, all settings normal.
-@item Bigger tests: A, all settings normal.
-@item As (7), using the fallback (Sadakane-like) sorting algorithm.
-@item As (8), compress with flag @code{-1}, decompress with flag
-      @code{-s}.
-@item H, using the fallback sorting algorithm.
-@item Forwards compatibility: A, @code{bzip2-0.1pl2} compressing,
-      @code{bzip2-0.9.5} decompressing, all settings normal.
-@item Backwards compatibility:  A, @code{bzip2-0.9.5} compressing,
-      @code{bzip2-0.1pl2} decompressing, all settings normal.
-@item Misc test: about 400 megabytes of @code{.tar} files with
-      @code{bzip2} compiled with Checker (a memory access error
-       detector, like Purify).
-@item Misc tests to make sure it builds and runs ok on non-Linux/x86
-      platforms.
-@end enumerate
-These tests were conducted on a 225 MHz IDT WinChip machine, running
-Linux 2.0.36.  They represent nearly a week of continuous computation.
-All tests completed successfully.
-
-
-@section Further reading
-@code{bzip2} is not research work, in the sense that it doesn't present
-any new ideas.  Rather, it's an engineering exercise based on existing
-ideas.
-
-Four documents describe essentially all the ideas behind @code{bzip2}:
-@example
-Michael Burrows and D. J. Wheeler:
-  "A block-sorting lossless data compression algorithm"
-   10th May 1994. 
-   Digital SRC Research Report 124.
-   ftp://ftp.digital.com/pub/DEC/SRC/research-reports/SRC-124.ps.gz
-   If you have trouble finding it, try searching at the
-   New Zealand Digital Library, http://www.nzdl.org.
-
-Daniel S. Hirschberg and Debra A. LeLewer
-  "Efficient Decoding of Prefix Codes"
-   Communications of the ACM, April 1990, Vol 33, Number 4.
-   You might be able to get an electronic copy of this
-      from the ACM Digital Library.
-
-David J. Wheeler
-   Program bred3.c and accompanying document bred3.ps.
-   This contains the idea behind the multi-table Huffman
-   coding scheme.
-   ftp://ftp.cl.cam.ac.uk/users/djw3/
-
-Jon L. Bentley and Robert Sedgewick
-  "Fast Algorithms for Sorting and Searching Strings"
-   Available from Sedgewick's web page,
-   www.cs.princeton.edu/~rs
-@end example
-The following paper gives valuable additional insights into the
-algorithm, but is not immediately the basis of any code
-used in bzip2.
-@example
-Peter Fenwick:
-   Block Sorting Text Compression
-   Proceedings of the 19th Australasian Computer Science Conference,
-     Melbourne, Australia.  Jan 31 - Feb 2, 1996.
-   ftp://ftp.cs.auckland.ac.nz/pub/peter-f/ACSC96paper.ps
-@end example
-Kunihiko Sadakane's sorting algorithm, mentioned above,
-is available from:
-@example
-http://naomi.is.s.u-tokyo.ac.jp/~sada/papers/Sada98b.ps.gz
-@end example
-The Manber-Myers suffix array construction
-algorithm is described in a paper
-available from:
-@example
-http://www.cs.arizona.edu/people/gene/PAPERS/suffix.ps
-@end example
-Finally, the following paper documents some recent investigations
-I made into the performance of sorting algorithms:
-@example
-Julian Seward:
-   On the Performance of BWT Sorting Algorithms
-   Proceedings of the IEEE Data Compression Conference 2000
-     Snowbird, Utah.  28-30 March 2000.
-@end example
-
-
-@contents
-
-@bye
-
diff -Nru bzip2-1.0.1/manual_1.html bzip2-1.0.1.new/manual_1.html
--- bzip2-1.0.1/manual_1.html   Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/manual_1.html       Thu Jan  1 01:00:00 1970
@@ -1,47 +0,0 @@
-<HTML>
-<HEAD>
-<!-- This HTML file has been created by texi2html 1.54
-     from manual.texi on 23 March 2000 -->
-
-<TITLE>bzip2 and libbzip2 - Introduction</TITLE>
-<link href="manual_2.html" rel=Next>
-<link href="manual_toc.html" rel=ToC>
-
-</HEAD>
-<BODY>
-<p>Go to the first, previous, <A HREF="manual_2.html">next</A>, <A HREF="manual_4.html">last</A> section, <A HREF="manual_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC1" HREF="manual_toc.html#TOC1">Introduction</A></H1>
-
-<P>
-<CODE>bzip2</CODE>  compresses  files  using the Burrows-Wheeler 
-block-sorting text compression algorithm,  and  Huffman  coding.
-Compression  is  generally  considerably  better than that
-achieved by more conventional LZ77/LZ78-based compressors,
-and  approaches  the performance of the PPM family of statistical compressors.
-
-</P>
-<P>
-<CODE>bzip2</CODE> is built on top of <CODE>libbzip2</CODE>, a flexible library
-for handling compressed data in the <CODE>bzip2</CODE> format.  This manual
-describes both how to use the program and 
-how to work with the library interface.  Most of the
-manual is devoted to this library, not the program, 
-which is good news if your interest is only in the program.
-
-</P>
-<P>
-Chapter 2 describes how to use <CODE>bzip2</CODE>; this is the only part 
-you need to read if you just want to know how to operate the program.
-Chapter 3 describes the programming interfaces in detail, and
-Chapter 4 records some miscellaneous notes which I thought
-ought to be recorded somewhere.
-
-</P>
-
-<P><HR><P>
-<p>Go to the first, previous, <A HREF="manual_2.html">next</A>, <A HREF="manual_4.html">last</A> section, <A HREF="manual_toc.html">table of contents</A>.
-</BODY>
-</HTML>
diff -Nru bzip2-1.0.1/manual_2.html bzip2-1.0.1.new/manual_2.html
--- bzip2-1.0.1/manual_2.html   Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/manual_2.html       Thu Jan  1 01:00:00 1970
@@ -1,484 +0,0 @@
-<HTML>
-<HEAD>
-<!-- This HTML file has been created by texi2html 1.54
-     from manual.texi on 23 March 2000 -->
-
-<TITLE>bzip2 and libbzip2 - How to use bzip2</TITLE>
-<link href="manual_3.html" rel=Next>
-<link href="manual_1.html" rel=Previous>
-<link href="manual_toc.html" rel=ToC>
-
-</HEAD>
-<BODY>
-<p>Go to the <A HREF="manual_1.html">first</A>, <A HREF="manual_1.html">previous</A>, <A HREF="manual_3.html">next</A>, <A HREF="manual_4.html">last</A> section, <A HREF="manual_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC2" HREF="manual_toc.html#TOC2">How to use <CODE>bzip2</CODE></A></H1>
-
-<P>
-This chapter contains a copy of the <CODE>bzip2</CODE> man page,
-and nothing else.
-
-</P>
-
-<BLOCKQUOTE>
-
-
-
-<H4><A NAME="SEC3" HREF="manual_toc.html#TOC3">NAME</A></H4>
-
-<UL>
-<LI><CODE>bzip2</CODE>, <CODE>bunzip2</CODE>
-
-- a block-sorting file compressor, v1.0
-<LI><CODE>bzcat</CODE>
-
-- decompresses files to stdout
-<LI><CODE>bzip2recover</CODE>
-
-- recovers data from damaged bzip2 files
-</UL>
-
-
-
-<H4><A NAME="SEC4" HREF="manual_toc.html#TOC4">SYNOPSIS</A></H4>
-
-<UL>
-<LI><CODE>bzip2</CODE> [ -cdfkqstvzVL123456789 ] [ filenames ...  ]
-
-<LI><CODE>bunzip2</CODE> [ -fkvsVL ] [ filenames ...  ]
-
-<LI><CODE>bzcat</CODE> [ -s ] [ filenames ...  ]
-
-<LI><CODE>bzip2recover</CODE> filename
-
-</UL>
-
-
-
-<H4><A NAME="SEC5" HREF="manual_toc.html#TOC5">DESCRIPTION</A></H4>
-
-<P>
-<CODE>bzip2</CODE> compresses files using the Burrows-Wheeler block sorting
-text compression algorithm, and Huffman coding.  Compression is
-generally considerably better than that achieved by more conventional
-LZ77/LZ78-based compressors, and approaches the performance of the PPM
-family of statistical compressors.
-
-</P>
-<P>
-The command-line options are deliberately very similar to those of GNU
-<CODE>gzip</CODE>, but they are not identical.
-
-</P>
-<P>
-<CODE>bzip2</CODE> expects a list of file names to accompany the command-line
-flags.  Each file is replaced by a compressed version of itself, with
-the name <CODE>original_name.bz2</CODE>.  Each compressed file has the same
-modification date, permissions, and, when possible, ownership as the
-corresponding original, so that these properties can be correctly
-restored at decompression time.  File name handling is naive in the
-sense that there is no mechanism for preserving original file names,
-permissions, ownerships or dates in filesystems which lack these
-concepts, or have serious file name length restrictions, such as MS-DOS.
-
-</P>
-<P>
-<CODE>bzip2</CODE> and <CODE>bunzip2</CODE> will by default not overwrite existing
-files.  If you want this to happen, specify the <CODE>-f</CODE> flag.
-
-</P>
-<P>
-If no file names are specified, <CODE>bzip2</CODE> compresses from standard
-input to standard output.  In this case, <CODE>bzip2</CODE> will decline to
-write compressed output to a terminal, as this would be entirely
-incomprehensible and therefore pointless.
-
-</P>
-<P>
-<CODE>bunzip2</CODE> (or <CODE>bzip2 -d</CODE>) decompresses all
-specified files.  Files which were not created by <CODE>bzip2</CODE>
-will be detected and ignored, and a warning issued.  
-<CODE>bzip2</CODE> attempts to guess the filename for the decompressed file 
-from that of the compressed file as follows:
-
-<UL>
-<LI><CODE>filename.bz2 </CODE> becomes <CODE>filename</CODE>
-
-<LI><CODE>filename.bz  </CODE> becomes <CODE>filename</CODE>
-
-<LI><CODE>filename.tbz2</CODE> becomes <CODE>filename.tar</CODE>
-
-<LI><CODE>filename.tbz </CODE> becomes <CODE>filename.tar</CODE>
-
-<LI><CODE>anyothername </CODE> becomes <CODE>anyothername.out</CODE>
-
-</UL>
-
-<P>
-If the file does not end in one of the recognised endings, 
-<CODE>.bz2</CODE>, <CODE>.bz</CODE>, 
-<CODE>.tbz2</CODE> or <CODE>.tbz</CODE>, <CODE>bzip2</CODE> complains that it cannot
-guess the name of the original file, and uses the original name
-with <CODE>.out</CODE> appended.
-
-</P>
-<P>
-As with compression, supplying no
-filenames causes decompression from standard input to standard output.
-
-</P>
-<P>
-<CODE>bunzip2</CODE> will correctly decompress a file which is the
-concatenation of two or more compressed files.  The result is the
-concatenation of the corresponding uncompressed files.  Integrity
-testing (<CODE>-t</CODE>) of concatenated compressed files is also supported.
-
-</P>
-<P>
-You can also compress or decompress files to the standard output by
-giving the <CODE>-c</CODE> flag.  Multiple files may be compressed and
-decompressed like this.  The resulting outputs are fed sequentially to
-stdout.  Compression of multiple files in this manner generates a stream
-containing multiple compressed file representations.  Such a stream
-can be decompressed correctly only by <CODE>bzip2</CODE> version 0.9.0 or
-later.  Earlier versions of <CODE>bzip2</CODE> will stop after decompressing
-the first file in the stream.
-
-</P>
-<P>
-<CODE>bzcat</CODE> (or <CODE>bzip2 -dc</CODE>) decompresses all specified files to
-the standard output.
-
-</P>
-<P>
-<CODE>bzip2</CODE> will read arguments from the environment variables
-<CODE>BZIP2</CODE> and <CODE>BZIP</CODE>, in that order, and will process them
-before any arguments read from the command line.  This gives a 
-convenient way to supply default arguments.
-
-</P>
-<P>
-Compression is always performed, even if the compressed file is slightly
-larger than the original.  Files of less than about one hundred bytes
-tend to get larger, since the compression mechanism has a constant
-overhead in the region of 50 bytes.  Random data (including the output
-of most file compressors) is coded at about 8.05 bits per byte, giving
-an expansion of around 0.5%.
-
-</P>
-<P>
-As a self-check for your protection, <CODE>bzip2</CODE> uses 32-bit CRCs to
-make sure that the decompressed version of a file is identical to the
-original.  This guards against corruption of the compressed data, and
-against undetected bugs in <CODE>bzip2</CODE> (hopefully very unlikely).  The
-chances of data corruption going undetected is microscopic, about one
-chance in four billion for each file processed.  Be aware, though, that
-the check occurs upon decompression, so it can only tell you that
-something is wrong.  It can't help you recover the original uncompressed
-data.  You can use <CODE>bzip2recover</CODE> to try to recover data from
-damaged files.
-
-</P>
-<P>
-Return values: 0 for a normal exit, 1 for environmental problems (file
-not found, invalid flags, I/O errors, &#38;c), 2 to indicate a corrupt
-compressed file, 3 for an internal consistency error (eg, bug) which
-caused <CODE>bzip2</CODE> to panic.
-
-</P>
-
-
-
-<H4><A NAME="SEC6" HREF="manual_toc.html#TOC6">OPTIONS</A></H4>
-<DL COMPACT>
-
-<DT><CODE>-c  --stdout</CODE>
-<DD>
-Compress or decompress to standard output.
-<DT><CODE>-d  --decompress</CODE>
-<DD>
-Force decompression.  <CODE>bzip2</CODE>, <CODE>bunzip2</CODE> and <CODE>bzcat</CODE> are
-really the same program, and the decision about what actions to take is
-done on the basis of which name is used.  This flag overrides that
-mechanism, and forces bzip2 to decompress.
-<DT><CODE>-z --compress</CODE>
-<DD>
-The complement to <CODE>-d</CODE>: forces compression, regardless of the
-invokation name.
-<DT><CODE>-t --test</CODE>
-<DD>
-Check integrity of the specified file(s), but don't decompress them.
-This really performs a trial decompression and throws away the result.
-<DT><CODE>-f --force</CODE>
-<DD>
-Force overwrite of output files.  Normally, <CODE>bzip2</CODE> will not overwrite
-existing output files.  Also forces <CODE>bzip2</CODE> to break hard links
-to files, which it otherwise wouldn't do.
-<DT><CODE>-k --keep</CODE>
-<DD>
-Keep (don't delete) input files during compression
-or decompression.
-<DT><CODE>-s --small</CODE>
-<DD>
-Reduce memory usage, for compression, decompression and testing.  Files
-are decompressed and tested using a modified algorithm which only
-requires 2.5 bytes per block byte.  This means any file can be
-decompressed in 2300k of memory, albeit at about half the normal speed.
-
-During compression, <CODE>-s</CODE> selects a block size of 200k, which limits
-memory use to around the same figure, at the expense of your compression
-ratio.  In short, if your machine is low on memory (8 megabytes or
-less), use -s for everything.  See MEMORY MANAGEMENT below.
-<DT><CODE>-q --quiet</CODE>
-<DD>
-Suppress non-essential warning messages.  Messages pertaining to
-I/O errors and other critical events will not be suppressed.
-<DT><CODE>-v --verbose</CODE>
-<DD>
-Verbose mode -- show the compression ratio for each file processed.
-Further <CODE>-v</CODE>'s increase the verbosity level, spewing out lots of
-information which is primarily of interest for diagnostic purposes.
-<DT><CODE>-L --license -V --version</CODE>
-<DD>
-Display the software version, license terms and conditions.
-<DT><CODE>-1 to -9</CODE>
-<DD>
-Set the block size to 100 k, 200 k ..  900 k when compressing.  Has no
-effect when decompressing.  See MEMORY MANAGEMENT below.
-<DT><CODE>--</CODE>
-<DD>
-Treats all subsequent arguments as file names, even if they start
-with a dash.  This is so you can handle files with names beginning
-with a dash, for example: <CODE>bzip2 -- -myfilename</CODE>.
-<DT><CODE>--repetitive-fast</CODE>
-<DD>
-<DT><CODE>--repetitive-best</CODE>
-<DD>
-These flags are redundant in versions 0.9.5 and above.  They provided
-some coarse control over the behaviour of the sorting algorithm in
-earlier versions, which was sometimes useful.  0.9.5 and above have an
-improved algorithm which renders these flags irrelevant.
-</DL>
-
-
-
-<H4><A NAME="SEC7" HREF="manual_toc.html#TOC7">MEMORY MANAGEMENT</A></H4>
-
-<P>
-<CODE>bzip2</CODE> compresses large files in blocks.  The block size affects
-both the compression ratio achieved, and the amount of memory needed for
-compression and decompression.  The flags <CODE>-1</CODE> through <CODE>-9</CODE>
-specify the block size to be 100,000 bytes through 900,000 bytes (the
-default) respectively.  At decompression time, the block size used for
-compression is read from the header of the compressed file, and
-<CODE>bunzip2</CODE> then allocates itself just enough memory to decompress
-the file.  Since block sizes are stored in compressed files, it follows
-that the flags <CODE>-1</CODE> to <CODE>-9</CODE> are irrelevant to and so ignored
-during decompression.
-
-</P>
-<P>
-Compression and decompression requirements, in bytes, can be estimated
-as:
-
-<PRE>
-     Compression:   400k + ( 8 x block size )
-
-     Decompression: 100k + ( 4 x block size ), or
-                    100k + ( 2.5 x block size )
-</PRE>
-
-<P>
-Larger block sizes give rapidly diminishing marginal returns.  Most of
-the compression comes from the first two or three hundred k of block
-size, a fact worth bearing in mind when using <CODE>bzip2</CODE> on small machines.
-It is also important to appreciate that the decompression memory
-requirement is set at compression time by the choice of block size.
-
-</P>
-<P>
-For files compressed with the default 900k block size, <CODE>bunzip2</CODE>
-will require about 3700 kbytes to decompress.  To support decompression
-of any file on a 4 megabyte machine, <CODE>bunzip2</CODE> has an option to
-decompress using approximately half this amount of memory, about 2300
-kbytes.  Decompression speed is also halved, so you should use this
-option only where necessary.  The relevant flag is <CODE>-s</CODE>.
-
-</P>
-<P>
-In general, try and use the largest block size memory constraints allow,
-since that maximises the compression achieved.  Compression and
-decompression speed are virtually unaffected by block size.
-
-</P>
-<P>
-Another significant point applies to files which fit in a single block
--- that means most files you'd encounter using a large block size.  The
-amount of real memory touched is proportional to the size of the file,
-since the file is smaller than a block.  For example, compressing a file
-20,000 bytes long with the flag <CODE>-9</CODE> will cause the compressor to
-allocate around 7600k of memory, but only touch 400k + 20000 * 8 = 560
-kbytes of it.  Similarly, the decompressor will allocate 3700k but only
-touch 100k + 20000 * 4 = 180 kbytes.
-
-</P>
-<P>
-Here is a table which summarises the maximum memory usage for different
-block sizes.  Also recorded is the total compressed size for 14 files of
-the Calgary Text Compression Corpus totalling 3,141,622 bytes.  This
-column gives some feel for how compression varies with block size.
-These figures tend to understate the advantage of larger block sizes for
-larger files, since the Corpus is dominated by smaller files.
-
-<PRE>
-          Compress   Decompress   Decompress   Corpus
-   Flag     usage      usage       -s usage     Size
-
-    -1      1200k       500k         350k      914704
-    -2      2000k       900k         600k      877703
-    -3      2800k      1300k         850k      860338
-    -4      3600k      1700k        1100k      846899
-    -5      4400k      2100k        1350k      845160
-    -6      5200k      2500k        1600k      838626
-    -7      6100k      2900k        1850k      834096
-    -8      6800k      3300k        2100k      828642
-    -9      7600k      3700k        2350k      828642
-</PRE>
-
-
-
-<H4><A NAME="SEC8" HREF="manual_toc.html#TOC8">RECOVERING DATA FROM DAMAGED FILES</A></H4>
-
-<P>
-<CODE>bzip2</CODE> compresses files in blocks, usually 900kbytes long.  Each
-block is handled independently.  If a media or transmission error causes
-a multi-block <CODE>.bz2</CODE> file to become damaged, it may be possible to
-recover data from the undamaged blocks in the file.
-
-</P>
-<P>
-The compressed representation of each block is delimited by a 48-bit
-pattern, which makes it possible to find the block boundaries with
-reasonable certainty.  Each block also carries its own 32-bit CRC, so
-damaged blocks can be distinguished from undamaged ones.
-
-</P>
-<P>
-<CODE>bzip2recover</CODE> is a simple program whose purpose is to search for
-blocks in <CODE>.bz2</CODE> files, and write each block out into its own
-<CODE>.bz2</CODE> file.  You can then use <CODE>bzip2 -t</CODE> to test the
-integrity of the resulting files, and decompress those which are
-undamaged.
-
-</P>
-<P>
-<CODE>bzip2recover</CODE> 
-takes a single argument, the name of the damaged file, 
-and writes a number of files <CODE>rec0001file.bz2</CODE>,
-       <CODE>rec0002file.bz2</CODE>, etc, containing the  extracted  blocks.
-       The  output  filenames  are  designed  so  that the use of
-       wildcards in subsequent processing -- for example,  
-<CODE>bzip2 -dc  rec*file.bz2 &#62; recovered_data</CODE> -- lists the files in
-       the correct order.
-
-</P>
-<P>
-<CODE>bzip2recover</CODE> should be of most use dealing with large <CODE>.bz2</CODE>
-       files,  as  these will contain many blocks.  It is clearly
-       futile to use it on damaged single-block  files,  since  a
-       damaged  block  cannot  be recovered.  If you wish to minimise 
-any potential data loss through media  or  transmission errors, 
-you might consider compressing with a smaller
-       block size.
-
-</P>
-
-
-
-<H4><A NAME="SEC9" HREF="manual_toc.html#TOC9">PERFORMANCE NOTES</A></H4>
-
-<P>
-The sorting phase of compression gathers together similar strings in the
-file.  Because of this, files containing very long runs of repeated
-symbols, like "aabaabaabaab ..."  (repeated several hundred times) may
-compress more slowly than normal.  Versions 0.9.5 and above fare much
-better than previous versions in this respect.  The ratio between
-worst-case and average-case compression time is in the region of 10:1.
-For previous versions, this figure was more like 100:1.  You can use the
-<CODE>-vvvv</CODE> option to monitor progress in great detail, if you want.
-
-</P>
-<P>
-Decompression speed is unaffected by these phenomena.
-
-</P>
-<P>
-<CODE>bzip2</CODE> usually allocates several megabytes of memory to operate
-in, and then charges all over it in a fairly random fashion.  This means
-that performance, both for compressing and decompressing, is largely
-determined by the speed at which your machine can service cache misses.
-Because of this, small changes to the code to reduce the miss rate have
-been observed to give disproportionately large performance improvements.
-I imagine <CODE>bzip2</CODE> will perform best on machines with very large
-caches.
-
-</P>
-
-
-
-<H4><A NAME="SEC10" HREF="manual_toc.html#TOC10">CAVEATS</A></H4>
-
-<P>
-I/O error messages are not as helpful as they could be.  <CODE>bzip2</CODE>
-tries hard to detect I/O errors and exit cleanly, but the details of
-what the problem is sometimes seem rather misleading.
-
-</P>
-<P>
-This manual page pertains to version 1.0 of <CODE>bzip2</CODE>.  Compressed
-data created by this version is entirely forwards and backwards
-compatible with the previous public releases, versions 0.1pl2, 0.9.0 and
-0.9.5, but with the following exception: 0.9.0 and above can correctly
-decompress multiple concatenated compressed files.  0.1pl2 cannot do
-this; it will stop after decompressing just the first file in the
-stream.
-
-</P>
-<P>
-<CODE>bzip2recover</CODE> uses 32-bit integers to represent bit positions in
-compressed files, so it cannot handle compressed files more than 512
-megabytes long.  This could easily be fixed.
-
-</P>
-
-
-
-<H4><A NAME="SEC11" HREF="manual_toc.html#TOC11">AUTHOR</A></H4>
-<P>
-Julian Seward, <CODE>jseward@acm.org</CODE>.
-
-</P>
-<P>
-The ideas embodied in <CODE>bzip2</CODE> are due to (at least) the following
-people: Michael Burrows and David Wheeler (for the block sorting
-transformation), David Wheeler (again, for the Huffman coder), Peter
-Fenwick (for the structured coding model in the original <CODE>bzip</CODE>,
-and many refinements), and Alistair Moffat, Radford Neal and Ian Witten
-(for the arithmetic coder in the original <CODE>bzip</CODE>).  I am much
-indebted for their help, support and advice.  See the manual in the
-source distribution for pointers to sources of documentation.  Christian
-von Roques encouraged me to look for faster sorting algorithms, so as to
-speed up compression.  Bela Lubkin encouraged me to improve the
-worst-case compression performance.  Many people sent patches, helped
-with portability problems, lent machines, gave advice and were generally
-helpful.
-
-</P>
-</BLOCKQUOTE>
-
-<P><HR><P>
-<p>Go to the <A HREF="manual_1.html">first</A>, <A HREF="manual_1.html">previous</A>, <A HREF="manual_3.html">next</A>, <A HREF="manual_4.html">last</A> section, <A HREF="manual_toc.html">table of contents</A>.
-</BODY>
-</HTML>
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@@ -1,1773 +0,0 @@
-<HTML>
-<HEAD>
-<!-- This HTML file has been created by texi2html 1.54
-     from manual.texi on 23 March 2000 -->
-
-<TITLE>bzip2 and libbzip2 - Programming with libbzip2</TITLE>
-<link href="manual_4.html" rel=Next>
-<link href="manual_2.html" rel=Previous>
-<link href="manual_toc.html" rel=ToC>
-
-</HEAD>
-<BODY>
-<p>Go to the <A HREF="manual_1.html">first</A>, <A HREF="manual_2.html">previous</A>, <A HREF="manual_4.html">next</A>, <A HREF="manual_4.html">last</A> section, <A HREF="manual_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC12" HREF="manual_toc.html#TOC12">Programming with <CODE>libbzip2</CODE></A></H1>
-
-<P>
-This chapter describes the programming interface to <CODE>libbzip2</CODE>.
-
-</P>
-<P>
-For general background information, particularly about memory
-use and performance aspects, you'd be well advised to read Chapter 2
-as well.
-
-</P>
-
-
-<H2><A NAME="SEC13" HREF="manual_toc.html#TOC13">Top-level structure</A></H2>
-
-<P>
-<CODE>libbzip2</CODE> is a flexible library for compressing and decompressing
-data in the <CODE>bzip2</CODE> data format.  Although packaged as a single
-entity, it helps to regard the library as three separate parts: the low
-level interface, and the high level interface, and some utility
-functions.
-
-</P>
-<P>
-The structure of <CODE>libbzip2</CODE>'s interfaces is similar to
-that of Jean-loup Gailly's and Mark Adler's excellent <CODE>zlib</CODE> 
-library.
-
-</P>
-<P>
-All externally visible symbols have names beginning <CODE>BZ2_</CODE>.
-This is new in version 1.0.  The intention is to minimise pollution
-of the namespaces of library clients.
-
-</P>
-
-
-<H3><A NAME="SEC14" HREF="manual_toc.html#TOC14">Low-level summary</A></H3>
-
-<P>
-This interface provides services for compressing and decompressing
-data in memory.  There's no provision for dealing with files, streams
-or any other I/O mechanisms, just straight memory-to-memory work.
-In fact, this part of the library can be compiled without inclusion
-of <CODE>stdio.h</CODE>, which may be helpful for embedded applications.
-
-</P>
-<P>
-The low-level part of the library has no global variables and
-is therefore thread-safe.
-
-</P>
-<P>
-Six routines make up the low level interface: 
-<CODE>BZ2_bzCompressInit</CODE>, <CODE>BZ2_bzCompress</CODE>, and <BR> <CODE>BZ2_bzCompressEnd</CODE>
-for compression,
-and a corresponding trio <CODE>BZ2_bzDecompressInit</CODE>, <BR> <CODE>BZ2_bzDecompress</CODE>
-and <CODE>BZ2_bzDecompressEnd</CODE> for decompression.  
-The <CODE>*Init</CODE> functions allocate
-memory for compression/decompression and do other
-initialisations, whilst the <CODE>*End</CODE> functions close down operations
-and release memory.
-
-</P>
-<P>
-The real work is done by <CODE>BZ2_bzCompress</CODE> and <CODE>BZ2_bzDecompress</CODE>.  
-These compress and decompress data from a user-supplied input buffer
-to a user-supplied output buffer.  These buffers can be any size;
-arbitrary quantities of data are handled by making repeated calls
-to these functions.  This is a flexible mechanism allowing a 
-consumer-pull style of activity, or producer-push, or a mixture of
-both.
-
-</P>
-
-
-
-<H3><A NAME="SEC15" HREF="manual_toc.html#TOC15">High-level summary</A></H3>
-
-<P>
-This interface provides some handy wrappers around the low-level
-interface to facilitate reading and writing <CODE>bzip2</CODE> format
-files (<CODE>.bz2</CODE> files).  The routines provide hooks to facilitate
-reading files in which the <CODE>bzip2</CODE> data stream is embedded 
-within some larger-scale file structure, or where there are
-multiple <CODE>bzip2</CODE> data streams concatenated end-to-end.
-
-</P>
-<P>
-For reading files, <CODE>BZ2_bzReadOpen</CODE>, <CODE>BZ2_bzRead</CODE>,
-<CODE>BZ2_bzReadClose</CODE> and <BR> <CODE>BZ2_bzReadGetUnused</CODE> are supplied.  For
-writing files, <CODE>BZ2_bzWriteOpen</CODE>, <CODE>BZ2_bzWrite</CODE> and
-<CODE>BZ2_bzWriteFinish</CODE> are available.
-
-</P>
-<P>
-As with the low-level library, no global variables are used
-so the library is per se thread-safe.  However, if I/O errors
-occur whilst reading or writing the underlying compressed files,
-you may have to consult <CODE>errno</CODE> to determine the cause of
-the error.  In that case, you'd need a C library which correctly
-supports <CODE>errno</CODE> in a multithreaded environment.
-
-</P>
-<P>
-To make the library a little simpler and more portable,
-<CODE>BZ2_bzReadOpen</CODE> and <CODE>BZ2_bzWriteOpen</CODE> require you to pass them file
-handles (<CODE>FILE*</CODE>s) which have previously been opened for reading or
-writing respectively.  That avoids portability problems associated with
-file operations and file attributes, whilst not being much of an
-imposition on the programmer.
-
-</P>
-
-
-
-<H3><A NAME="SEC16" HREF="manual_toc.html#TOC16">Utility functions summary</A></H3>
-<P>
-For very simple needs, <CODE>BZ2_bzBuffToBuffCompress</CODE> and
-<CODE>BZ2_bzBuffToBuffDecompress</CODE> are provided.  These compress
-data in memory from one buffer to another buffer in a single
-function call.  You should assess whether these functions
-fulfill your memory-to-memory compression/decompression
-requirements before investing effort in understanding the more
-general but more complex low-level interface.
-
-</P>
-<P>
-Yoshioka Tsuneo (<CODE>QWF00133@niftyserve.or.jp</CODE> /
-<CODE>tsuneo-y@is.aist-nara.ac.jp</CODE>) has contributed some functions to
-give better <CODE>zlib</CODE> compatibility.  These functions are
-<CODE>BZ2_bzopen</CODE>, <CODE>BZ2_bzread</CODE>, <CODE>BZ2_bzwrite</CODE>, <CODE>BZ2_bzflush</CODE>,
-<CODE>BZ2_bzclose</CODE>,
-<CODE>BZ2_bzerror</CODE> and <CODE>BZ2_bzlibVersion</CODE>.  You may find these functions
-more convenient for simple file reading and writing, than those in the
-high-level interface.  These functions are not (yet) officially part of
-the library, and are minimally documented here.  If they break, you
-get to keep all the pieces.  I hope to document them properly when time
-permits.
-
-</P>
-<P>
-Yoshioka also contributed modifications to allow the library to be
-built as a Windows DLL.
-
-</P>
-
-
-
-<H2><A NAME="SEC17" HREF="manual_toc.html#TOC17">Error handling</A></H2>
-
-<P>
-The library is designed to recover cleanly in all situations, including
-the worst-case situation of decompressing random data.  I'm not 
-100% sure that it can always do this, so you might want to add
-a signal handler to catch segmentation violations during decompression
-if you are feeling especially paranoid.  I would be interested in
-hearing more about the robustness of the library to corrupted
-compressed data.
-
-</P>
-<P>
-Version 1.0 is much more robust in this respect than
-0.9.0 or 0.9.5.  Investigations with Checker (a tool for 
-detecting problems with memory management, similar to Purify)
-indicate that, at least for the few files I tested, all single-bit
-errors in the decompressed data are caught properly, with no
-segmentation faults, no reads of uninitialised data and no 
-out of range reads or writes.  So it's certainly much improved,
-although I wouldn't claim it to be totally bombproof.
-
-</P>
-<P>
-The file <CODE>bzlib.h</CODE> contains all definitions needed to use
-the library.  In particular, you should definitely not include
-<CODE>bzlib_private.h</CODE>.
-
-</P>
-<P>
-In <CODE>bzlib.h</CODE>, the various return values are defined.  The following
-list is not intended as an exhaustive description of the circumstances 
-in which a given value may be returned -- those descriptions are given
-later.  Rather, it is intended to convey the rough meaning of each
-return value.  The first five actions are normal and not intended to 
-denote an error situation.
-<DL COMPACT>
-
-<DT><CODE>BZ_OK</CODE>
-<DD>
-The requested action was completed successfully.
-<DT><CODE>BZ_RUN_OK</CODE>
-<DD>
-<DT><CODE>BZ_FLUSH_OK</CODE>
-<DD>
-<DT><CODE>BZ_FINISH_OK</CODE>
-<DD>
-In <CODE>BZ2_bzCompress</CODE>, the requested flush/finish/nothing-special action
-was completed successfully.
-<DT><CODE>BZ_STREAM_END</CODE>
-<DD>
-Compression of data was completed, or the logical stream end was
-detected during decompression.
-</DL>
-
-<P>
-The following return values indicate an error of some kind.
-<DL COMPACT>
-
-<DT><CODE>BZ_CONFIG_ERROR</CODE>
-<DD>
-Indicates that the library has been improperly compiled on your
-platform -- a major configuration error.  Specifically, it means
-that <CODE>sizeof(char)</CODE>, <CODE>sizeof(short)</CODE> and <CODE>sizeof(int)</CODE>
-are not 1, 2 and 4 respectively, as they should be.  Note that the 
-library should still work properly on 64-bit platforms which follow
-the LP64 programming model -- that is, where <CODE>sizeof(long)</CODE>
-and <CODE>sizeof(void*)</CODE> are 8.  Under LP64, <CODE>sizeof(int)</CODE> is
-still 4, so <CODE>libbzip2</CODE>, which doesn't use the <CODE>long</CODE> type,
-is OK.
-<DT><CODE>BZ_SEQUENCE_ERROR</CODE>
-<DD>
-When using the library, it is important to call the functions in the
-correct sequence and with data structures (buffers etc) in the correct
-states.  <CODE>libbzip2</CODE> checks as much as it can to ensure this is
-happening, and returns <CODE>BZ_SEQUENCE_ERROR</CODE> if not.  Code which
-complies precisely with the function semantics, as detailed below,
-should never receive this value; such an event denotes buggy code
-which you should investigate.
-<DT><CODE>BZ_PARAM_ERROR</CODE>
-<DD>
-Returned when a parameter to a function call is out of range 
-or otherwise manifestly incorrect.  As with <CODE>BZ_SEQUENCE_ERROR</CODE>,
-this denotes a bug in the client code.  The distinction between
-<CODE>BZ_PARAM_ERROR</CODE> and <CODE>BZ_SEQUENCE_ERROR</CODE> is a bit hazy, but still worth
-making.
-<DT><CODE>BZ_MEM_ERROR</CODE>
-<DD>
-Returned when a request to allocate memory failed.  Note that the
-quantity of memory needed to decompress a stream cannot be determined
-until the stream's header has been read.  So <CODE>BZ2_bzDecompress</CODE> and
-<CODE>BZ2_bzRead</CODE> may return <CODE>BZ_MEM_ERROR</CODE> even though some of
-the compressed data has been read.  The same is not true for
-compression; once <CODE>BZ2_bzCompressInit</CODE> or <CODE>BZ2_bzWriteOpen</CODE> have
-successfully completed, <CODE>BZ_MEM_ERROR</CODE> cannot occur.
-<DT><CODE>BZ_DATA_ERROR</CODE>
-<DD>
-Returned when a data integrity error is detected during decompression.
-Most importantly, this means when stored and computed CRCs for the
-data do not match.  This value is also returned upon detection of any
-other anomaly in the compressed data.
-<DT><CODE>BZ_DATA_ERROR_MAGIC</CODE>
-<DD>
-As a special case of <CODE>BZ_DATA_ERROR</CODE>, it is sometimes useful to
-know when the compressed stream does not start with the correct
-magic bytes (<CODE>'B' 'Z' 'h'</CODE>).  
-<DT><CODE>BZ_IO_ERROR</CODE>
-<DD>
-Returned by <CODE>BZ2_bzRead</CODE> and <CODE>BZ2_bzWrite</CODE> when there is an error
-reading or writing in the compressed file, and by <CODE>BZ2_bzReadOpen</CODE>
-and <CODE>BZ2_bzWriteOpen</CODE> for attempts to use a file for which the
-error indicator (viz, <CODE>ferror(f)</CODE>) is set.
-On receipt of <CODE>BZ_IO_ERROR</CODE>, the caller should consult
-<CODE>errno</CODE> and/or <CODE>perror</CODE> to acquire operating-system
-specific information about the problem.
-<DT><CODE>BZ_UNEXPECTED_EOF</CODE>
-<DD>
-Returned by <CODE>BZ2_bzRead</CODE> when the compressed file finishes
-before the logical end of stream is detected.
-<DT><CODE>BZ_OUTBUFF_FULL</CODE>
-<DD>
-Returned by <CODE>BZ2_bzBuffToBuffCompress</CODE> and
-<CODE>BZ2_bzBuffToBuffDecompress</CODE> to indicate that the output data
-will not fit into the output buffer provided.
-</DL>
-
-
-
-<H2><A NAME="SEC18" HREF="manual_toc.html#TOC18">Low-level interface</A></H2>
-
-
-
-<H3><A NAME="SEC19" HREF="manual_toc.html#TOC19"><CODE>BZ2_bzCompressInit</CODE></A></H3>
-
-<PRE>
-typedef 
-   struct {
-      char *next_in;
-      unsigned int avail_in;
-      unsigned int total_in_lo32;
-      unsigned int total_in_hi32;
-
-      char *next_out;
-      unsigned int avail_out;
-      unsigned int total_out_lo32;
-      unsigned int total_out_hi32;
-
-      void *state;
-
-      void *(*bzalloc)(void *,int,int);
-      void (*bzfree)(void *,void *);
-      void *opaque;
-   } 
-   bz_stream;
-
-int BZ2_bzCompressInit ( bz_stream *strm, 
-                         int blockSize100k, 
-                         int verbosity,
-                         int workFactor );
-
-</PRE>
-
-<P>
-Prepares for compression.  The <CODE>bz_stream</CODE> structure
-holds all data pertaining to the compression activity.  
-A <CODE>bz_stream</CODE> structure should be allocated and initialised
-prior to the call.
-The fields of <CODE>bz_stream</CODE>
-comprise the entirety of the user-visible data.  <CODE>state</CODE>
-is a pointer to the private data structures required for compression.
-
-</P>
-<P>
-Custom memory allocators are supported, via fields <CODE>bzalloc</CODE>, 
-<CODE>bzfree</CODE>,
-and <CODE>opaque</CODE>.  The value 
-<CODE>opaque</CODE> is passed to as the first argument to
-all calls to <CODE>bzalloc</CODE> and <CODE>bzfree</CODE>, but is 
-otherwise ignored by the library.
-The call <CODE>bzalloc ( opaque, n, m )</CODE> is expected to return a 
-pointer <CODE>p</CODE> to
-<CODE>n * m</CODE> bytes of memory, and <CODE>bzfree ( opaque, p )</CODE> 
-should free
-that memory.
-
-</P>
-<P>
-If you don't want to use a custom memory allocator, set <CODE>bzalloc</CODE>, 
-<CODE>bzfree</CODE> and
-<CODE>opaque</CODE> to <CODE>NULL</CODE>, 
-and the library will then use the standard <CODE>malloc</CODE>/<CODE>free</CODE>
-routines.
-
-</P>
-<P>
-Before calling <CODE>BZ2_bzCompressInit</CODE>, fields <CODE>bzalloc</CODE>, 
-<CODE>bzfree</CODE> and <CODE>opaque</CODE> should
-be filled appropriately, as just described.  Upon return, the internal
-state will have been allocated and initialised, and <CODE>total_in_lo32</CODE>, 
-<CODE>total_in_hi32</CODE>, <CODE>total_out_lo32</CODE> and 
-<CODE>total_out_hi32</CODE> will have been set to zero.  
-These four fields are used by the library
-to inform the caller of the total amount of data passed into and out of
-the library, respectively.  You should not try to change them.
-As of version 1.0, 64-bit counts are maintained, even on 32-bit
-platforms, using the <CODE>_hi32</CODE> fields to store the upper 32 bits
-of the count.  So, for example, the total amount of data in
-is <CODE>(total_in_hi32 &#60;&#60; 32) + total_in_lo32</CODE>.
-
-</P>
-<P>
-Parameter <CODE>blockSize100k</CODE> specifies the block size to be used for
-compression.  It should be a value between 1 and 9 inclusive, and the
-actual block size used is 100000 x this figure.  9 gives the best
-compression but takes most memory.
-
-</P>
-<P>
-Parameter <CODE>verbosity</CODE> should be set to a number between 0 and 4
-inclusive.  0 is silent, and greater numbers give increasingly verbose
-monitoring/debugging output.  If the library has been compiled with
-<CODE>-DBZ_NO_STDIO</CODE>, no such output will appear for any verbosity
-setting.
-
-</P>
-<P>
-Parameter <CODE>workFactor</CODE> controls how the compression phase behaves
-when presented with worst case, highly repetitive, input data.  If
-compression runs into difficulties caused by repetitive data, the
-library switches from the standard sorting algorithm to a fallback
-algorithm.  The fallback is slower than the standard algorithm by
-perhaps a factor of three, but always behaves reasonably, no matter how
-bad the input.
-
-</P>
-<P>
-Lower values of <CODE>workFactor</CODE> reduce the amount of effort the
-standard algorithm will expend before resorting to the fallback.  You
-should set this parameter carefully; too low, and many inputs will be
-handled by the fallback algorithm and so compress rather slowly, too
-high, and your average-to-worst case compression times can become very
-large.  The default value of 30 gives reasonable behaviour over a wide
-range of circumstances.
-
-</P>
-<P>
-Allowable values range from 0 to 250 inclusive.  0 is a special case,
-equivalent to using the default value of 30.
-
-</P>
-<P>
-Note that the compressed output generated is the same regardless of
-whether or not the fallback algorithm is used.
-
-</P>
-<P>
-Be aware also that this parameter may disappear entirely in future
-versions of the library.  In principle it should be possible to devise a
-good way to automatically choose which algorithm to use.  Such a
-mechanism would render the parameter obsolete.
-
-</P>
-<P>
-Possible return values:
-
-<PRE>
-      <CODE>BZ_CONFIG_ERROR</CODE>
-         if the library has been mis-compiled
-      <CODE>BZ_PARAM_ERROR</CODE> 
-         if <CODE>strm</CODE> is <CODE>NULL</CODE> 
-         or <CODE>blockSize</CODE> &#60; 1 or <CODE>blockSize</CODE> &#62; 9
-         or <CODE>verbosity</CODE> &#60; 0 or <CODE>verbosity</CODE> &#62; 4
-         or <CODE>workFactor</CODE> &#60; 0 or <CODE>workFactor</CODE> &#62; 250
-      <CODE>BZ_MEM_ERROR</CODE> 
-         if not enough memory is available
-      <CODE>BZ_OK</CODE> 
-         otherwise
-</PRE>
-
-<P>
-Allowable next actions:
-
-<PRE>
-      <CODE>BZ2_bzCompress</CODE> 
-         if <CODE>BZ_OK</CODE> is returned
-      no specific action needed in case of error
-</PRE>
-
-
-
-<H3><A NAME="SEC20" HREF="manual_toc.html#TOC20"><CODE>BZ2_bzCompress</CODE></A></H3>
-
-<PRE>
-   int BZ2_bzCompress ( bz_stream *strm, int action );
-</PRE>
-
-<P>
-Provides more input and/or output buffer space for the library.  The
-caller maintains input and output buffers, and calls <CODE>BZ2_bzCompress</CODE> to
-transfer data between them.
-
-</P>
-<P>
-Before each call to <CODE>BZ2_bzCompress</CODE>, <CODE>next_in</CODE> should point at
-the data to be compressed, and <CODE>avail_in</CODE> should indicate how many
-bytes the library may read.  <CODE>BZ2_bzCompress</CODE> updates <CODE>next_in</CODE>,
-<CODE>avail_in</CODE> and <CODE>total_in</CODE> to reflect the number of bytes it
-has read.
-
-</P>
-<P>
-Similarly, <CODE>next_out</CODE> should point to a buffer in which the
-compressed data is to be placed, with <CODE>avail_out</CODE> indicating how
-much output space is available.  <CODE>BZ2_bzCompress</CODE> updates
-<CODE>next_out</CODE>, <CODE>avail_out</CODE> and <CODE>total_out</CODE> to reflect the
-number of bytes output.
-
-</P>
-<P>
-You may provide and remove as little or as much data as you like on each
-call of <CODE>BZ2_bzCompress</CODE>.  In the limit, it is acceptable to supply and
-remove data one byte at a time, although this would be terribly
-inefficient.  You should always ensure that at least one byte of output
-space is available at each call.
-
-</P>
-<P>
-A second purpose of <CODE>BZ2_bzCompress</CODE> is to request a change of mode of the
-compressed stream.  
-
-</P>
-<P>
-Conceptually, a compressed stream can be in one of four states: IDLE,
-RUNNING, FLUSHING and FINISHING.  Before initialisation
-(<CODE>BZ2_bzCompressInit</CODE>) and after termination (<CODE>BZ2_bzCompressEnd</CODE>), a
-stream is regarded as IDLE.
-
-</P>
-<P>
-Upon initialisation (<CODE>BZ2_bzCompressInit</CODE>), the stream is placed in the
-RUNNING state.  Subsequent calls to <CODE>BZ2_bzCompress</CODE> should pass
-<CODE>BZ_RUN</CODE> as the requested action; other actions are illegal and
-will result in <CODE>BZ_SEQUENCE_ERROR</CODE>.
-
-</P>
-<P>
-At some point, the calling program will have provided all the input data
-it wants to.  It will then want to finish up -- in effect, asking the
-library to process any data it might have buffered internally.  In this
-state, <CODE>BZ2_bzCompress</CODE> will no longer attempt to read data from
-<CODE>next_in</CODE>, but it will want to write data to <CODE>next_out</CODE>.
-Because the output buffer supplied by the user can be arbitrarily small,
-the finishing-up operation cannot necessarily be done with a single call
-of <CODE>BZ2_bzCompress</CODE>.
-
-</P>
-<P>
-Instead, the calling program passes <CODE>BZ_FINISH</CODE> as an action to
-<CODE>BZ2_bzCompress</CODE>.  This changes the stream's state to FINISHING.  Any
-remaining input (ie, <CODE>next_in[0 .. avail_in-1]</CODE>) is compressed and
-transferred to the output buffer.  To do this, <CODE>BZ2_bzCompress</CODE> must be
-called repeatedly until all the output has been consumed.  At that
-point, <CODE>BZ2_bzCompress</CODE> returns <CODE>BZ_STREAM_END</CODE>, and the stream's
-state is set back to IDLE.  <CODE>BZ2_bzCompressEnd</CODE> should then be
-called.
-
-</P>
-<P>
-Just to make sure the calling program does not cheat, the library makes
-a note of <CODE>avail_in</CODE> at the time of the first call to
-<CODE>BZ2_bzCompress</CODE> which has <CODE>BZ_FINISH</CODE> as an action (ie, at the
-time the program has announced its intention to not supply any more
-input).  By comparing this value with that of <CODE>avail_in</CODE> over
-subsequent calls to <CODE>BZ2_bzCompress</CODE>, the library can detect any
-attempts to slip in more data to compress.  Any calls for which this is
-detected will return <CODE>BZ_SEQUENCE_ERROR</CODE>.  This indicates a
-programming mistake which should be corrected.
-
-</P>
-<P>
-Instead of asking to finish, the calling program may ask
-<CODE>BZ2_bzCompress</CODE> to take all the remaining input, compress it and
-terminate the current (Burrows-Wheeler) compression block.  This could
-be useful for error control purposes.  The mechanism is analogous to
-that for finishing: call <CODE>BZ2_bzCompress</CODE> with an action of
-<CODE>BZ_FLUSH</CODE>, remove output data, and persist with the
-<CODE>BZ_FLUSH</CODE> action until the value <CODE>BZ_RUN</CODE> is returned.  As
-with finishing, <CODE>BZ2_bzCompress</CODE> detects any attempt to provide more
-input data once the flush has begun.
-
-</P>
-<P>
-Once the flush is complete, the stream returns to the normal RUNNING
-state.
-
-</P>
-<P>
-This all sounds pretty complex, but isn't really.  Here's a table
-which shows which actions are allowable in each state, what action
-will be taken, what the next state is, and what the non-error return
-values are.  Note that you can't explicitly ask what state the
-stream is in, but nor do you need to -- it can be inferred from the
-values returned by <CODE>BZ2_bzCompress</CODE>.
-
-<PRE>
-IDLE/<CODE>any</CODE>           
-      Illegal.  IDLE state only exists after <CODE>BZ2_bzCompressEnd</CODE> or
-      before <CODE>BZ2_bzCompressInit</CODE>.
-      Return value = <CODE>BZ_SEQUENCE_ERROR</CODE>
-
-RUNNING/<CODE>BZ_RUN</CODE>     
-      Compress from <CODE>next_in</CODE> to <CODE>next_out</CODE> as much as possible.
-      Next state = RUNNING
-      Return value = <CODE>BZ_RUN_OK</CODE>
-
-RUNNING/<CODE>BZ_FLUSH</CODE>   
-      Remember current value of <CODE>next_in</CODE>.  Compress from <CODE>next_in</CODE>
-      to <CODE>next_out</CODE> as much as possible, but do not accept any more input.  
-      Next state = FLUSHING
-      Return value = <CODE>BZ_FLUSH_OK</CODE>
-
-RUNNING/<CODE>BZ_FINISH</CODE>  
-      Remember current value of <CODE>next_in</CODE>.  Compress from <CODE>next_in</CODE>
-      to <CODE>next_out</CODE> as much as possible, but do not accept any more input.
-      Next state = FINISHING
-      Return value = <CODE>BZ_FINISH_OK</CODE>
-
-FLUSHING/<CODE>BZ_FLUSH</CODE>  
-      Compress from <CODE>next_in</CODE> to <CODE>next_out</CODE> as much as possible, 
-      but do not accept any more input.  
-      If all the existing input has been used up and all compressed
-      output has been removed
-         Next state = RUNNING; Return value = <CODE>BZ_RUN_OK</CODE>
-      else
-         Next state = FLUSHING; Return value = <CODE>BZ_FLUSH_OK</CODE>
-
-FLUSHING/other     
-      Illegal.
-      Return value = <CODE>BZ_SEQUENCE_ERROR</CODE>
-
-FINISHING/<CODE>BZ_FINISH</CODE>  
-      Compress from <CODE>next_in</CODE> to <CODE>next_out</CODE> as much as possible,
-      but to not accept any more input.  
-      If all the existing input has been used up and all compressed
-      output has been removed
-         Next state = IDLE; Return value = <CODE>BZ_STREAM_END</CODE>
-      else
-         Next state = FINISHING; Return value = <CODE>BZ_FINISHING</CODE>
-
-FINISHING/other
-      Illegal.
-      Return value = <CODE>BZ_SEQUENCE_ERROR</CODE>
-</PRE>
-
-<P>
-That still looks complicated?  Well, fair enough.  The usual sequence
-of calls for compressing a load of data is:
-
-<UL>
-<LI>Get started with <CODE>BZ2_bzCompressInit</CODE>.
-
-<LI>Shovel data in and shlurp out its compressed form using zero or more
-
-calls of <CODE>BZ2_bzCompress</CODE> with action = <CODE>BZ_RUN</CODE>.
-<LI>Finish up.
-
-Repeatedly call <CODE>BZ2_bzCompress</CODE> with action = <CODE>BZ_FINISH</CODE>, 
-copying out the compressed output, until <CODE>BZ_STREAM_END</CODE> is returned.
-<LI>Close up and go home.  Call <CODE>BZ2_bzCompressEnd</CODE>.
-
-</UL>
-
-<P>
-If the data you want to compress fits into your input buffer all
-at once, you can skip the calls of <CODE>BZ2_bzCompress ( ..., BZ_RUN )</CODE> and 
-just do the <CODE>BZ2_bzCompress ( ..., BZ_FINISH )</CODE> calls.
-
-</P>
-<P>
-All required memory is allocated by <CODE>BZ2_bzCompressInit</CODE>.  The
-compression library can accept any data at all (obviously).  So you
-shouldn't get any error return values from the <CODE>BZ2_bzCompress</CODE> calls.
-If you do, they will be <CODE>BZ_SEQUENCE_ERROR</CODE>, and indicate a bug in
-your programming.
-
-</P>
-<P>
-Trivial other possible return values:
-
-<PRE>
-      <CODE>BZ_PARAM_ERROR</CODE>   
-         if <CODE>strm</CODE> is <CODE>NULL</CODE>, or <CODE>strm-&#62;s</CODE> is <CODE>NULL</CODE>
-</PRE>
-
-
-
-<H3><A NAME="SEC21" HREF="manual_toc.html#TOC21"><CODE>BZ2_bzCompressEnd</CODE></A></H3>
-
-<PRE>
-int BZ2_bzCompressEnd ( bz_stream *strm );
-</PRE>
-
-<P>
-Releases all memory associated with a compression stream.
-
-</P>
-<P>
-Possible return values:
-
-<PRE>
-   <CODE>BZ_PARAM_ERROR</CODE>    if <CODE>strm</CODE> is <CODE>NULL</CODE> or <CODE>strm-&#62;s</CODE> is <CODE>NULL</CODE>
-   <CODE>BZ_OK</CODE>    otherwise
-</PRE>
-
-
-
-<H3><A NAME="SEC22" HREF="manual_toc.html#TOC22"><CODE>BZ2_bzDecompressInit</CODE></A></H3>
-
-<PRE>
-int BZ2_bzDecompressInit ( bz_stream *strm, int verbosity, int small );
-</PRE>
-
-<P>
-Prepares for decompression.  As with <CODE>BZ2_bzCompressInit</CODE>, a
-<CODE>bz_stream</CODE> record should be allocated and initialised before the
-call.  Fields <CODE>bzalloc</CODE>, <CODE>bzfree</CODE> and <CODE>opaque</CODE> should be
-set if a custom memory allocator is required, or made <CODE>NULL</CODE> for
-the normal <CODE>malloc</CODE>/<CODE>free</CODE> routines.  Upon return, the internal
-state will have been initialised, and <CODE>total_in</CODE> and
-<CODE>total_out</CODE> will be zero.
-
-</P>
-<P>
-For the meaning of parameter <CODE>verbosity</CODE>, see <CODE>BZ2_bzCompressInit</CODE>.
-
-</P>
-<P>
-If <CODE>small</CODE> is nonzero, the library will use an alternative
-decompression algorithm which uses less memory but at the cost of
-decompressing more slowly (roughly speaking, half the speed, but the
-maximum memory requirement drops to around 2300k).  See Chapter 2 for
-more information on memory management.
-
-</P>
-<P>
-Note that the amount of memory needed to decompress
-a stream cannot be determined until the stream's header has been read,
-so even if <CODE>BZ2_bzDecompressInit</CODE> succeeds, a subsequent
-<CODE>BZ2_bzDecompress</CODE> could fail with <CODE>BZ_MEM_ERROR</CODE>.
-
-</P>
-<P>
-Possible return values:
-
-<PRE>
-      <CODE>BZ_CONFIG_ERROR</CODE>
-         if the library has been mis-compiled
-      <CODE>BZ_PARAM_ERROR</CODE>
-         if <CODE>(small != 0 &#38;&#38; small != 1)</CODE>
-         or <CODE>(verbosity &#60; 0 || verbosity &#62; 4)</CODE>
-      <CODE>BZ_MEM_ERROR</CODE>
-         if insufficient memory is available
-</PRE>
-
-<P>
-Allowable next actions:
-
-<PRE>
-      <CODE>BZ2_bzDecompress</CODE>
-         if <CODE>BZ_OK</CODE> was returned
-      no specific action required in case of error
-</PRE>
-
-<P>
- 
-
-</P>
-
-
-<H3><A NAME="SEC23" HREF="manual_toc.html#TOC23"><CODE>BZ2_bzDecompress</CODE></A></H3>
-
-<PRE>
-int BZ2_bzDecompress ( bz_stream *strm );
-</PRE>
-
-<P>
-Provides more input and/out output buffer space for the library.  The
-caller maintains input and output buffers, and uses <CODE>BZ2_bzDecompress</CODE>
-to transfer data between them.
-
-</P>
-<P>
-Before each call to <CODE>BZ2_bzDecompress</CODE>, <CODE>next_in</CODE> 
-should point at the compressed data,
-and <CODE>avail_in</CODE> should indicate how many bytes the library
-may read.  <CODE>BZ2_bzDecompress</CODE> updates <CODE>next_in</CODE>, <CODE>avail_in</CODE> 
-and <CODE>total_in</CODE>
-to reflect the number of bytes it has read.
-
-</P>
-<P>
-Similarly, <CODE>next_out</CODE> should point to a buffer in which the uncompressed
-output is to be placed, with <CODE>avail_out</CODE> indicating how much output space
-is available.  <CODE>BZ2_bzCompress</CODE> updates <CODE>next_out</CODE>,
-<CODE>avail_out</CODE> and <CODE>total_out</CODE> to reflect
-the number of bytes output.
-
-</P>
-<P>
-You may provide and remove as little or as much data as you like on
-each call of <CODE>BZ2_bzDecompress</CODE>.  
-In the limit, it is acceptable to
-supply and remove data one byte at a time, although this would be
-terribly inefficient.  You should always ensure that at least one
-byte of output space is available at each call.
-
-</P>
-<P>
-Use of <CODE>BZ2_bzDecompress</CODE> is simpler than <CODE>BZ2_bzCompress</CODE>.
-
-</P>
-<P>
-You should provide input and remove output as described above, and
-repeatedly call <CODE>BZ2_bzDecompress</CODE> until <CODE>BZ_STREAM_END</CODE> is
-returned.  Appearance of <CODE>BZ_STREAM_END</CODE> denotes that
-<CODE>BZ2_bzDecompress</CODE> has detected the logical end of the compressed
-stream.  <CODE>BZ2_bzDecompress</CODE> will not produce <CODE>BZ_STREAM_END</CODE> until
-all output data has been placed into the output buffer, so once
-<CODE>BZ_STREAM_END</CODE> appears, you are guaranteed to have available all
-the decompressed output, and <CODE>BZ2_bzDecompressEnd</CODE> can safely be
-called.
-
-</P>
-<P>
-If case of an error return value, you should call <CODE>BZ2_bzDecompressEnd</CODE>
-to clean up and release memory.
-
-</P>
-<P>
-Possible return values:
-
-<PRE>
-      <CODE>BZ_PARAM_ERROR</CODE>
-         if <CODE>strm</CODE> is <CODE>NULL</CODE> or <CODE>strm-&#62;s</CODE> is <CODE>NULL</CODE>
-         or <CODE>strm-&#62;avail_out &#60; 1</CODE>
-      <CODE>BZ_DATA_ERROR</CODE>
-         if a data integrity error is detected in the compressed stream
-      <CODE>BZ_DATA_ERROR_MAGIC</CODE>
-         if the compressed stream doesn't begin with the right magic bytes
-      <CODE>BZ_MEM_ERROR</CODE>
-         if there wasn't enough memory available
-      <CODE>BZ_STREAM_END</CODE>
-         if the logical end of the data stream was detected and all
-         output in has been consumed, eg <CODE>s-&#62;avail_out &#62; 0</CODE>
-      <CODE>BZ_OK</CODE>
-         otherwise
-</PRE>
-
-<P>
-Allowable next actions:
-
-<PRE>
-      <CODE>BZ2_bzDecompress</CODE>
-         if <CODE>BZ_OK</CODE> was returned
-      <CODE>BZ2_bzDecompressEnd</CODE>
-         otherwise
-</PRE>
-
-
-
-<H3><A NAME="SEC24" HREF="manual_toc.html#TOC24"><CODE>BZ2_bzDecompressEnd</CODE></A></H3>
-
-<PRE>
-int BZ2_bzDecompressEnd ( bz_stream *strm );
-</PRE>
-
-<P>
-Releases all memory associated with a decompression stream.
-
-</P>
-<P>
-Possible return values:
-
-<PRE>
-      <CODE>BZ_PARAM_ERROR</CODE>
-         if <CODE>strm</CODE> is <CODE>NULL</CODE> or <CODE>strm-&#62;s</CODE> is <CODE>NULL</CODE>
-      <CODE>BZ_OK</CODE>
-         otherwise
-</PRE>
-
-<P>
-Allowable next actions:
-
-<PRE>
-      None.
-</PRE>
-
-
-
-<H2><A NAME="SEC25" HREF="manual_toc.html#TOC25">High-level interface</A></H2>
-
-<P>
-This interface provides functions for reading and writing 
-<CODE>bzip2</CODE> format files.  First, some general points.
-
-</P>
-
-<UL>
-<LI>All of the functions take an <CODE>int*</CODE> first argument,
-
-  <CODE>bzerror</CODE>.
-  After each call, <CODE>bzerror</CODE> should be consulted first to determine
-  the outcome of the call.  If <CODE>bzerror</CODE> is <CODE>BZ_OK</CODE>, 
-  the call completed
-  successfully, and only then should the return value of the function
-  (if any) be consulted.  If <CODE>bzerror</CODE> is <CODE>BZ_IO_ERROR</CODE>, 
-  there was an error
-  reading/writing the underlying compressed file, and you should
-  then consult <CODE>errno</CODE>/<CODE>perror</CODE> to determine the 
-  cause of the difficulty.
-  <CODE>bzerror</CODE> may also be set to various other values; precise details are
-  given on a per-function basis below.
-<LI>If <CODE>bzerror</CODE> indicates an error
-
-  (ie, anything except <CODE>BZ_OK</CODE> and <CODE>BZ_STREAM_END</CODE>),
-  you should immediately call <CODE>BZ2_bzReadClose</CODE> (or <CODE>BZ2_bzWriteClose</CODE>,
-  depending on whether you are attempting to read or to write)
-  to free up all resources associated
-  with the stream.  Once an error has been indicated, behaviour of all calls
-  except <CODE>BZ2_bzReadClose</CODE> (<CODE>BZ2_bzWriteClose</CODE>) is undefined.  
-  The implication is that (1) <CODE>bzerror</CODE> should
-  be checked after each call, and (2) if <CODE>bzerror</CODE> indicates an error, 
-  <CODE>BZ2_bzReadClose</CODE> (<CODE>BZ2_bzWriteClose</CODE>) should then be called to clean up.
-<LI>The <CODE>FILE*</CODE> arguments passed to
-
-   <CODE>BZ2_bzReadOpen</CODE>/<CODE>BZ2_bzWriteOpen</CODE>  
-  should be set to binary mode.
-  Most Unix systems will do this by default, but other platforms,
-  including Windows and Mac, will not.  If you omit this, you may
-  encounter problems when moving code to new platforms.
-<LI>Memory allocation requests are handled by
-
-  <CODE>malloc</CODE>/<CODE>free</CODE>.  
-  At present
-  there is no facility for user-defined memory allocators in the file I/O
-  functions (could easily be added, though).
-</UL>
-
-
-
-<H3><A NAME="SEC26" HREF="manual_toc.html#TOC26"><CODE>BZ2_bzReadOpen</CODE></A></H3>
-
-<PRE>
-   typedef void BZFILE;
-
-   BZFILE *BZ2_bzReadOpen ( int *bzerror, FILE *f, 
-                            int small, int verbosity,
-                            void *unused, int nUnused );
-</PRE>
-
-<P>
-Prepare to read compressed data from file handle <CODE>f</CODE>.  <CODE>f</CODE>
-should refer to a file which has been opened for reading, and for which
-the error indicator (<CODE>ferror(f)</CODE>)is not set.  If <CODE>small</CODE> is 1,
-the library will try to decompress using less memory, at the expense of
-speed.
-
-</P>
-<P>
-For reasons explained below, <CODE>BZ2_bzRead</CODE> will decompress the
-<CODE>nUnused</CODE> bytes starting at <CODE>unused</CODE>, before starting to read
-from the file <CODE>f</CODE>.  At most <CODE>BZ_MAX_UNUSED</CODE> bytes may be
-supplied like this.  If this facility is not required, you should pass
-<CODE>NULL</CODE> and <CODE>0</CODE> for <CODE>unused</CODE> and n<CODE>Unused</CODE>
-respectively.
-
-</P>
-<P>
-For the meaning of parameters <CODE>small</CODE> and <CODE>verbosity</CODE>,
-see <CODE>BZ2_bzDecompressInit</CODE>.
-
-</P>
-<P>
-The amount of memory needed to decompress a file cannot be determined
-until the file's header has been read.  So it is possible that
-<CODE>BZ2_bzReadOpen</CODE> returns <CODE>BZ_OK</CODE> but a subsequent call of
-<CODE>BZ2_bzRead</CODE> will return <CODE>BZ_MEM_ERROR</CODE>.
-
-</P>
-<P>
-Possible assignments to <CODE>bzerror</CODE>:
-
-<PRE>
-      <CODE>BZ_CONFIG_ERROR</CODE>
-         if the library has been mis-compiled
-      <CODE>BZ_PARAM_ERROR</CODE>
-         if <CODE>f</CODE> is <CODE>NULL</CODE> 
-         or <CODE>small</CODE> is neither <CODE>0</CODE> nor <CODE>1</CODE>                 
-         or <CODE>(unused == NULL &#38;&#38; nUnused != 0)</CODE>
-         or <CODE>(unused != NULL &#38;&#38; !(0 &#60;= nUnused &#60;= BZ_MAX_UNUSED))</CODE>
-      <CODE>BZ_IO_ERROR</CODE>    
-         if <CODE>ferror(f)</CODE> is nonzero
-      <CODE>BZ_MEM_ERROR</CODE>   
-         if insufficient memory is available
-      <CODE>BZ_OK</CODE>
-         otherwise.
-</PRE>
-
-<P>
-Possible return values:
-
-<PRE>
-      Pointer to an abstract <CODE>BZFILE</CODE>        
-         if <CODE>bzerror</CODE> is <CODE>BZ_OK</CODE>   
-      <CODE>NULL</CODE>
-         otherwise
-</PRE>
-
-<P>
-Allowable next actions:
-
-<PRE>
-      <CODE>BZ2_bzRead</CODE>
-         if <CODE>bzerror</CODE> is <CODE>BZ_OK</CODE>   
-      <CODE>BZ2_bzClose</CODE> 
-         otherwise
-</PRE>
-
-
-
-<H3><A NAME="SEC27" HREF="manual_toc.html#TOC27"><CODE>BZ2_bzRead</CODE></A></H3>
-
-<PRE>
-   int BZ2_bzRead ( int *bzerror, BZFILE *b, void *buf, int len );
-</PRE>
-
-<P>
-Reads up to <CODE>len</CODE> (uncompressed) bytes from the compressed file 
-<CODE>b</CODE> into
-the buffer <CODE>buf</CODE>.  If the read was successful, 
-<CODE>bzerror</CODE> is set to <CODE>BZ_OK</CODE>
-and the number of bytes read is returned.  If the logical end-of-stream
-was detected, <CODE>bzerror</CODE> will be set to <CODE>BZ_STREAM_END</CODE>, 
-and the number
-of bytes read is returned.  All other <CODE>bzerror</CODE> values denote an error.
-
-</P>
-<P>
-<CODE>BZ2_bzRead</CODE> will supply <CODE>len</CODE> bytes,
-unless the logical stream end is detected
-or an error occurs.  Because of this, it is possible to detect the 
-stream end by observing when the number of bytes returned is 
-less than the number
-requested.  Nevertheless, this is regarded as inadvisable; you should
-instead check <CODE>bzerror</CODE> after every call and watch out for
-<CODE>BZ_STREAM_END</CODE>.
-
-</P>
-<P>
-Internally, <CODE>BZ2_bzRead</CODE> copies data from the compressed file in chunks
-of size <CODE>BZ_MAX_UNUSED</CODE> bytes
-before decompressing it.  If the file contains more bytes than strictly
-needed to reach the logical end-of-stream, <CODE>BZ2_bzRead</CODE> will almost certainly
-read some of the trailing data before signalling <CODE>BZ_SEQUENCE_END</CODE>.
-To collect the read but unused data once <CODE>BZ_SEQUENCE_END</CODE> has 
-appeared, call <CODE>BZ2_bzReadGetUnused</CODE> immediately before <CODE>BZ2_bzReadClose</CODE>.
-
-</P>
-<P>
-Possible assignments to <CODE>bzerror</CODE>:
-
-<PRE>
-      <CODE>BZ_PARAM_ERROR</CODE>
-         if <CODE>b</CODE> is <CODE>NULL</CODE> or <CODE>buf</CODE> is <CODE>NULL</CODE> or <CODE>len &#60; 0</CODE>
-      <CODE>BZ_SEQUENCE_ERROR</CODE> 
-         if <CODE>b</CODE> was opened with <CODE>BZ2_bzWriteOpen</CODE>
-      <CODE>BZ_IO_ERROR</CODE> 
-         if there is an error reading from the compressed file
-      <CODE>BZ_UNEXPECTED_EOF</CODE> 
-         if the compressed file ended before the logical end-of-stream was detected
-      <CODE>BZ_DATA_ERROR</CODE> 
-         if a data integrity error was detected in the compressed stream
-      <CODE>BZ_DATA_ERROR_MAGIC</CODE>
-         if the stream does not begin with the requisite header bytes (ie, is not 
-         a <CODE>bzip2</CODE> data file).  This is really a special case of <CODE>BZ_DATA_ERROR</CODE>.
-      <CODE>BZ_MEM_ERROR</CODE> 
-         if insufficient memory was available
-      <CODE>BZ_STREAM_END</CODE> 
-         if the logical end of stream was detected.
-      <CODE>BZ_OK</CODE>
-         otherwise.
-</PRE>
-
-<P>
-Possible return values:
-
-<PRE>
-      number of bytes read
-         if <CODE>bzerror</CODE> is <CODE>BZ_OK</CODE> or <CODE>BZ_STREAM_END</CODE>
-      undefined
-         otherwise
-</PRE>
-
-<P>
-Allowable next actions:
-
-<PRE>
-      collect data from <CODE>buf</CODE>, then <CODE>BZ2_bzRead</CODE> or <CODE>BZ2_bzReadClose</CODE>
-         if <CODE>bzerror</CODE> is <CODE>BZ_OK</CODE> 
-      collect data from <CODE>buf</CODE>, then <CODE>BZ2_bzReadClose</CODE> or <CODE>BZ2_bzReadGetUnused</CODE> 
-         if <CODE>bzerror</CODE> is <CODE>BZ_SEQUENCE_END</CODE>   
-      <CODE>BZ2_bzReadClose</CODE> 
-         otherwise
-</PRE>
-
-
-
-<H3><A NAME="SEC28" HREF="manual_toc.html#TOC28"><CODE>BZ2_bzReadGetUnused</CODE></A></H3>
-
-<PRE>
-   void BZ2_bzReadGetUnused ( int* bzerror, BZFILE *b, 
-                              void** unused, int* nUnused );
-</PRE>
-
-<P>
-Returns data which was read from the compressed file but was not needed
-to get to the logical end-of-stream.  <CODE>*unused</CODE> is set to the address
-of the data, and <CODE>*nUnused</CODE> to the number of bytes.  <CODE>*nUnused</CODE> will
-be set to a value between <CODE>0</CODE> and <CODE>BZ_MAX_UNUSED</CODE> inclusive.
-
-</P>
-<P>
-This function may only be called once <CODE>BZ2_bzRead</CODE> has signalled 
-<CODE>BZ_STREAM_END</CODE> but before <CODE>BZ2_bzReadClose</CODE>.
-
-</P>
-<P>
-Possible assignments to <CODE>bzerror</CODE>:
-
-<PRE>
-      <CODE>BZ_PARAM_ERROR</CODE> 
-         if <CODE>b</CODE> is <CODE>NULL</CODE> 
-         or <CODE>unused</CODE> is <CODE>NULL</CODE> or <CODE>nUnused</CODE> is <CODE>NULL</CODE>
-      <CODE>BZ_SEQUENCE_ERROR</CODE> 
-         if <CODE>BZ_STREAM_END</CODE> has not been signalled
-         or if <CODE>b</CODE> was opened with <CODE>BZ2_bzWriteOpen</CODE>
-     <CODE>BZ_OK</CODE>
-         otherwise
-</PRE>
-
-<P>
-Allowable next actions:
-
-<PRE>
-      <CODE>BZ2_bzReadClose</CODE>
-</PRE>
-
-
-
-<H3><A NAME="SEC29" HREF="manual_toc.html#TOC29"><CODE>BZ2_bzReadClose</CODE></A></H3>
-
-<PRE>
-   void BZ2_bzReadClose ( int *bzerror, BZFILE *b );
-</PRE>
-
-<P>
-Releases all memory pertaining to the compressed file <CODE>b</CODE>.  
-<CODE>BZ2_bzReadClose</CODE> does not call <CODE>fclose</CODE> on the underlying file
-handle, so you should do that yourself if appropriate.
-<CODE>BZ2_bzReadClose</CODE> should be called to clean up after all error
-situations.
-
-</P>
-<P>
-Possible assignments to <CODE>bzerror</CODE>:
-
-<PRE>
-      <CODE>BZ_SEQUENCE_ERROR</CODE> 
-         if <CODE>b</CODE> was opened with <CODE>BZ2_bzOpenWrite</CODE> 
-      <CODE>BZ_OK</CODE> 
-         otherwise
-</PRE>
-
-<P>
-Allowable next actions:
-
-<PRE>
-      none
-</PRE>
-
-
-
-<H3><A NAME="SEC30" HREF="manual_toc.html#TOC30"><CODE>BZ2_bzWriteOpen</CODE></A></H3>
-
-<PRE>
-   BZFILE *BZ2_bzWriteOpen ( int *bzerror, FILE *f, 
-                             int blockSize100k, int verbosity,
-                             int workFactor );
-</PRE>
-
-<P>
-Prepare to write compressed data to file handle <CODE>f</CODE>.  
-<CODE>f</CODE> should refer to
-a file which has been opened for writing, and for which the error
-indicator (<CODE>ferror(f)</CODE>)is not set.  
-
-</P>
-<P>
-For the meaning of parameters <CODE>blockSize100k</CODE>,
-<CODE>verbosity</CODE> and <CODE>workFactor</CODE>, see
-<BR> <CODE>BZ2_bzCompressInit</CODE>.
-
-</P>
-<P>
-All required memory is allocated at this stage, so if the call
-completes successfully, <CODE>BZ_MEM_ERROR</CODE> cannot be signalled by a
-subsequent call to <CODE>BZ2_bzWrite</CODE>.
-
-</P>
-<P>
-Possible assignments to <CODE>bzerror</CODE>:
-
-<PRE>
-      <CODE>BZ_CONFIG_ERROR</CODE>
-         if the library has been mis-compiled
-      <CODE>BZ_PARAM_ERROR</CODE> 
-         if <CODE>f</CODE> is <CODE>NULL</CODE> 
-         or <CODE>blockSize100k &#60; 1</CODE> or <CODE>blockSize100k &#62; 9</CODE>
-      <CODE>BZ_IO_ERROR</CODE> 
-         if <CODE>ferror(f)</CODE> is nonzero
-      <CODE>BZ_MEM_ERROR</CODE> 
-         if insufficient memory is available
-      <CODE>BZ_OK</CODE> 
-         otherwise
-</PRE>
-
-<P>
-Possible return values:
-
-<PRE>
-      Pointer to an abstract <CODE>BZFILE</CODE>  
-         if <CODE>bzerror</CODE> is <CODE>BZ_OK</CODE>   
-      <CODE>NULL</CODE> 
-         otherwise
-</PRE>
-
-<P>
-Allowable next actions:
-
-<PRE>
-      <CODE>BZ2_bzWrite</CODE> 
-         if <CODE>bzerror</CODE> is <CODE>BZ_OK</CODE> 
-         (you could go directly to <CODE>BZ2_bzWriteClose</CODE>, but this would be pretty pointless)
-      <CODE>BZ2_bzWriteClose</CODE> 
-         otherwise
-</PRE>
-
-
-
-<H3><A NAME="SEC31" HREF="manual_toc.html#TOC31"><CODE>BZ2_bzWrite</CODE></A></H3>
-
-<PRE>
-   void BZ2_bzWrite ( int *bzerror, BZFILE *b, void *buf, int len );
-</PRE>
-
-<P>
-Absorbs <CODE>len</CODE> bytes from the buffer <CODE>buf</CODE>, eventually to be
-compressed and written to the file.
-
-</P>
-<P>
-Possible assignments to <CODE>bzerror</CODE>:
-
-<PRE>
-      <CODE>BZ_PARAM_ERROR</CODE> 
-         if <CODE>b</CODE> is <CODE>NULL</CODE> or <CODE>buf</CODE> is <CODE>NULL</CODE> or <CODE>len &#60; 0</CODE>
-      <CODE>BZ_SEQUENCE_ERROR</CODE> 
-         if b was opened with <CODE>BZ2_bzReadOpen</CODE>
-      <CODE>BZ_IO_ERROR</CODE> 
-         if there is an error writing the compressed file.
-      <CODE>BZ_OK</CODE> 
-         otherwise
-</PRE>
-
-
-
-<H3><A NAME="SEC32" HREF="manual_toc.html#TOC32"><CODE>BZ2_bzWriteClose</CODE></A></H3>
-
-<PRE>
-   void BZ2_bzWriteClose ( int *bzerror, BZFILE* f,
-                           int abandon,
-                           unsigned int* nbytes_in,
-                           unsigned int* nbytes_out );
-
-   void BZ2_bzWriteClose64 ( int *bzerror, BZFILE* f,
-                             int abandon,
-                             unsigned int* nbytes_in_lo32,
-                             unsigned int* nbytes_in_hi32,
-                             unsigned int* nbytes_out_lo32,
-                             unsigned int* nbytes_out_hi32 );
-</PRE>
-
-<P>
-Compresses and flushes to the compressed file all data so far supplied
-by <CODE>BZ2_bzWrite</CODE>.  The logical end-of-stream markers are also written, so
-subsequent calls to <CODE>BZ2_bzWrite</CODE> are illegal.  All memory associated 
-with the compressed file <CODE>b</CODE> is released.  
-<CODE>fflush</CODE> is called on the
-compressed file, but it is not <CODE>fclose</CODE>'d.
-
-</P>
-<P>
-If <CODE>BZ2_bzWriteClose</CODE> is called to clean up after an error, the only
-action is to release the memory.  The library records the error codes
-issued by previous calls, so this situation will be detected
-automatically.  There is no attempt to complete the compression
-operation, nor to <CODE>fflush</CODE> the compressed file.  You can force this
-behaviour to happen even in the case of no error, by passing a nonzero
-value to <CODE>abandon</CODE>.
-
-</P>
-<P>
-If <CODE>nbytes_in</CODE> is non-null, <CODE>*nbytes_in</CODE> will be set to be the
-total volume of uncompressed data handled.  Similarly, <CODE>nbytes_out</CODE>
-will be set to the total volume of compressed data written.  For 
-compatibility with older versions of the library, <CODE>BZ2_bzWriteClose</CODE>
-only yields the lower 32 bits of these counts.  Use
-<CODE>BZ2_bzWriteClose64</CODE> if you want the full 64 bit counts.  These
-two functions are otherwise absolutely identical.
-
-</P>
-
-<P>
-Possible assignments to <CODE>bzerror</CODE>:
-
-<PRE>
-      <CODE>BZ_SEQUENCE_ERROR</CODE> 
-         if <CODE>b</CODE> was opened with <CODE>BZ2_bzReadOpen</CODE>
-      <CODE>BZ_IO_ERROR</CODE> 
-         if there is an error writing the compressed file
-      <CODE>BZ_OK</CODE> 
-         otherwise
-</PRE>
-
-
-
-<H3><A NAME="SEC33" HREF="manual_toc.html#TOC33">Handling embedded compressed data streams</A></H3>
-
-<P>
-The high-level library facilitates use of
-<CODE>bzip2</CODE> data streams which form some part of a surrounding, larger
-data stream.
-
-<UL>
-<LI>For writing, the library takes an open file handle, writes
-
-compressed data to it, <CODE>fflush</CODE>es it but does not <CODE>fclose</CODE> it.
-The calling application can write its own data before and after the
-compressed data stream, using that same file handle.
-<LI>Reading is more complex, and the facilities are not as general
-
-as they could be since generality is hard to reconcile with efficiency.
-<CODE>BZ2_bzRead</CODE> reads from the compressed file in blocks of size
-<CODE>BZ_MAX_UNUSED</CODE> bytes, and in doing so probably will overshoot
-the logical end of compressed stream.
-To recover this data once decompression has
-ended, call <CODE>BZ2_bzReadGetUnused</CODE> after the last call of <CODE>BZ2_bzRead</CODE>
-(the one returning <CODE>BZ_STREAM_END</CODE>) but before calling
-<CODE>BZ2_bzReadClose</CODE>.
-</UL>
-
-<P>
-This mechanism makes it easy to decompress multiple <CODE>bzip2</CODE>
-streams placed end-to-end.  As the end of one stream, when <CODE>BZ2_bzRead</CODE>
-returns <CODE>BZ_STREAM_END</CODE>, call <CODE>BZ2_bzReadGetUnused</CODE> to collect the
-unused data (copy it into your own buffer somewhere).  
-That data forms the start of the next compressed stream.
-To start uncompressing that next stream, call <CODE>BZ2_bzReadOpen</CODE> again,
-feeding in the unused data via the <CODE>unused</CODE>/<CODE>nUnused</CODE>
-parameters.
-Keep doing this until <CODE>BZ_STREAM_END</CODE> return coincides with the
-physical end of file (<CODE>feof(f)</CODE>).  In this situation
-<CODE>BZ2_bzReadGetUnused</CODE>
-will of course return no data.
-
-</P>
-<P>
-This should give some feel for how the high-level interface can be used.
-If you require extra flexibility, you'll have to bite the bullet and get
-to grips with the low-level interface.
-
-</P>
-
-
-<H3><A NAME="SEC34" HREF="manual_toc.html#TOC34">Standard file-reading/writing code</A></H3>
-<P>
-Here's how you'd write data to a compressed file:
-
-<PRE>
-FILE*   f;
-BZFILE* b;
-int     nBuf;
-char    buf[ /* whatever size you like */ ];
-int     bzerror;
-int     nWritten;
-
-f = fopen ( "myfile.bz2", "w" );
-if (!f) {
-   /* handle error */
-}
-b = BZ2_bzWriteOpen ( &#38;bzerror, f, 9 );
-if (bzerror != BZ_OK) {
-   BZ2_bzWriteClose ( b );
-   /* handle error */
-}
-
-while ( /* condition */ ) {
-   /* get data to write into buf, and set nBuf appropriately */
-   nWritten = BZ2_bzWrite ( &#38;bzerror, b, buf, nBuf );
-   if (bzerror == BZ_IO_ERROR) { 
-      BZ2_bzWriteClose ( &#38;bzerror, b );
-      /* handle error */
-   }
-}
-
-BZ2_bzWriteClose ( &#38;bzerror, b );
-if (bzerror == BZ_IO_ERROR) {
-   /* handle error */
-}
-</PRE>
-
-<P>
-And to read from a compressed file:
-
-<PRE>
-FILE*   f;
-BZFILE* b;
-int     nBuf;
-char    buf[ /* whatever size you like */ ];
-int     bzerror;
-int     nWritten;
-
-f = fopen ( "myfile.bz2", "r" );
-if (!f) {
-   /* handle error */
-}
-b = BZ2_bzReadOpen ( &#38;bzerror, f, 0, NULL, 0 );
-if (bzerror != BZ_OK) {
-   BZ2_bzReadClose ( &#38;bzerror, b );
-   /* handle error */
-}
-
-bzerror = BZ_OK;
-while (bzerror == BZ_OK &#38;&#38; /* arbitrary other conditions */) {
-   nBuf = BZ2_bzRead ( &#38;bzerror, b, buf, /* size of buf */ );
-   if (bzerror == BZ_OK) {
-      /* do something with buf[0 .. nBuf-1] */
-   }
-}
-if (bzerror != BZ_STREAM_END) {
-   BZ2_bzReadClose ( &#38;bzerror, b );
-   /* handle error */
-} else {
-   BZ2_bzReadClose ( &#38;bzerror );
-}
-</PRE>
-
-
-
-<H2><A NAME="SEC35" HREF="manual_toc.html#TOC35">Utility functions</A></H2>
-
-
-<H3><A NAME="SEC36" HREF="manual_toc.html#TOC36"><CODE>BZ2_bzBuffToBuffCompress</CODE></A></H3>
-
-<PRE>
-   int BZ2_bzBuffToBuffCompress( char*         dest,
-                                 unsigned int* destLen,
-                                 char*         source,
-                                 unsigned int  sourceLen,
-                                 int           blockSize100k,
-                                 int           verbosity,
-                                 int           workFactor );
-</PRE>
-
-<P>
-Attempts to compress the data in <CODE>source[0 .. sourceLen-1]</CODE>
-into the destination buffer, <CODE>dest[0 .. *destLen-1]</CODE>.
-If the destination buffer is big enough, <CODE>*destLen</CODE> is
-set to the size of the compressed data, and <CODE>BZ_OK</CODE> is
-returned.  If the compressed data won't fit, <CODE>*destLen</CODE>
-is unchanged, and <CODE>BZ_OUTBUFF_FULL</CODE> is returned.
-
-</P>
-<P>
-Compression in this manner is a one-shot event, done with a single call
-to this function.  The resulting compressed data is a complete
-<CODE>bzip2</CODE> format data stream.  There is no mechanism for making
-additional calls to provide extra input data.  If you want that kind of
-mechanism, use the low-level interface.
-
-</P>
-<P>
-For the meaning of parameters <CODE>blockSize100k</CODE>, <CODE>verbosity</CODE>
-and <CODE>workFactor</CODE>, <BR> see <CODE>BZ2_bzCompressInit</CODE>.
-
-</P>
-<P>
-To guarantee that the compressed data will fit in its buffer, allocate
-an output buffer of size 1% larger than the uncompressed data, plus
-six hundred extra bytes.
-
-</P>
-<P>
-<CODE>BZ2_bzBuffToBuffDecompress</CODE> will not write data at or
-beyond <CODE>dest[*destLen]</CODE>, even in case of buffer overflow.
-
-</P>
-<P>
-Possible return values:
-
-<PRE>
-      <CODE>BZ_CONFIG_ERROR</CODE>
-         if the library has been mis-compiled
-      <CODE>BZ_PARAM_ERROR</CODE> 
-         if <CODE>dest</CODE> is <CODE>NULL</CODE> or <CODE>destLen</CODE> is <CODE>NULL</CODE>
-         or <CODE>blockSize100k &#60; 1</CODE> or <CODE>blockSize100k &#62; 9</CODE>
-         or <CODE>verbosity &#60; 0</CODE> or <CODE>verbosity &#62; 4</CODE> 
-         or <CODE>workFactor &#60; 0</CODE> or <CODE>workFactor &#62; 250</CODE>
-      <CODE>BZ_MEM_ERROR</CODE>
-         if insufficient memory is available 
-      <CODE>BZ_OUTBUFF_FULL</CODE>
-         if the size of the compressed data exceeds <CODE>*destLen</CODE>
-      <CODE>BZ_OK</CODE> 
-         otherwise
-</PRE>
-
-
-
-<H3><A NAME="SEC37" HREF="manual_toc.html#TOC37"><CODE>BZ2_bzBuffToBuffDecompress</CODE></A></H3>
-
-<PRE>
-   int BZ2_bzBuffToBuffDecompress ( char*         dest,
-                                    unsigned int* destLen,
-                                    char*         source,
-                                    unsigned int  sourceLen,
-                                    int           small,
-                                    int           verbosity );
-</PRE>
-
-<P>
-Attempts to decompress the data in <CODE>source[0 .. sourceLen-1]</CODE>
-into the destination buffer, <CODE>dest[0 .. *destLen-1]</CODE>.
-If the destination buffer is big enough, <CODE>*destLen</CODE> is
-set to the size of the uncompressed data, and <CODE>BZ_OK</CODE> is
-returned.  If the compressed data won't fit, <CODE>*destLen</CODE>
-is unchanged, and <CODE>BZ_OUTBUFF_FULL</CODE> is returned.
-
-</P>
-<P>
-<CODE>source</CODE> is assumed to hold a complete <CODE>bzip2</CODE> format
-data stream.  <BR> <CODE>BZ2_bzBuffToBuffDecompress</CODE> tries to decompress
-the entirety of the stream into the output buffer.
-
-</P>
-<P>
-For the meaning of parameters <CODE>small</CODE> and <CODE>verbosity</CODE>,
-see <CODE>BZ2_bzDecompressInit</CODE>.
-
-</P>
-<P>
-Because the compression ratio of the compressed data cannot be known in
-advance, there is no easy way to guarantee that the output buffer will
-be big enough.  You may of course make arrangements in your code to
-record the size of the uncompressed data, but such a mechanism is beyond
-the scope of this library.
-
-</P>
-<P>
-<CODE>BZ2_bzBuffToBuffDecompress</CODE> will not write data at or
-beyond <CODE>dest[*destLen]</CODE>, even in case of buffer overflow.
-
-</P>
-<P>
-Possible return values:
-
-<PRE>
-      <CODE>BZ_CONFIG_ERROR</CODE>
-         if the library has been mis-compiled
-      <CODE>BZ_PARAM_ERROR</CODE> 
-         if <CODE>dest</CODE> is <CODE>NULL</CODE> or <CODE>destLen</CODE> is <CODE>NULL</CODE>
-         or <CODE>small != 0 &#38;&#38; small != 1</CODE>
-         or <CODE>verbosity &#60; 0</CODE> or <CODE>verbosity &#62; 4</CODE> 
-      <CODE>BZ_MEM_ERROR</CODE>
-         if insufficient memory is available 
-      <CODE>BZ_OUTBUFF_FULL</CODE>
-         if the size of the compressed data exceeds <CODE>*destLen</CODE>
-      <CODE>BZ_DATA_ERROR</CODE>
-         if a data integrity error was detected in the compressed data
-      <CODE>BZ_DATA_ERROR_MAGIC</CODE>
-         if the compressed data doesn't begin with the right magic bytes
-      <CODE>BZ_UNEXPECTED_EOF</CODE>
-         if the compressed data ends unexpectedly
-      <CODE>BZ_OK</CODE> 
-         otherwise
-</PRE>
-
-
-
-<H2><A NAME="SEC38" HREF="manual_toc.html#TOC38"><CODE>zlib</CODE> compatibility functions</A></H2>
-<P>
-Yoshioka Tsuneo has contributed some functions to
-give better <CODE>zlib</CODE> compatibility.  These functions are
-<CODE>BZ2_bzopen</CODE>, <CODE>BZ2_bzread</CODE>, <CODE>BZ2_bzwrite</CODE>, <CODE>BZ2_bzflush</CODE>,
-<CODE>BZ2_bzclose</CODE>,
-<CODE>BZ2_bzerror</CODE> and <CODE>BZ2_bzlibVersion</CODE>.
-These functions are not (yet) officially part of
-the library.  If they break, you get to keep all the pieces.
-Nevertheless, I think they work ok.
-
-<PRE>
-typedef void BZFILE;
-
-const char * BZ2_bzlibVersion ( void );
-</PRE>
-
-<P>
-Returns a string indicating the library version.
-
-<PRE>
-BZFILE * BZ2_bzopen  ( const char *path, const char *mode );
-BZFILE * BZ2_bzdopen ( int        fd,    const char *mode );
-</PRE>
-
-<P>
-Opens a <CODE>.bz2</CODE> file for reading or writing, using either its name
-or a pre-existing file descriptor. 
-Analogous to <CODE>fopen</CODE> and <CODE>fdopen</CODE>.
-
-<PRE>
-int BZ2_bzread  ( BZFILE* b, void* buf, int len );
-int BZ2_bzwrite ( BZFILE* b, void* buf, int len );
-</PRE>
-
-<P>
-Reads/writes data from/to a previously opened <CODE>BZFILE</CODE>.
-Analogous to <CODE>fread</CODE> and <CODE>fwrite</CODE>.
-
-<PRE>
-int  BZ2_bzflush ( BZFILE* b );
-void BZ2_bzclose ( BZFILE* b );
-</PRE>
-
-<P>
-Flushes/closes a <CODE>BZFILE</CODE>.  <CODE>BZ2_bzflush</CODE> doesn't actually do
-anything.  Analogous to <CODE>fflush</CODE> and <CODE>fclose</CODE>.
-
-</P>
-
-<PRE>
-const char * BZ2_bzerror ( BZFILE *b, int *errnum )
-</PRE>
-
-<P>
-Returns a string describing the more recent error status of
-<CODE>b</CODE>, and also sets <CODE>*errnum</CODE> to its numerical value.
-
-</P>
-
-
-
-<H2><A NAME="SEC39" HREF="manual_toc.html#TOC39">Using the library in a <CODE>stdio</CODE>-free environment</A></H2>
-
-
-
-<H3><A NAME="SEC40" HREF="manual_toc.html#TOC40">Getting rid of <CODE>stdio</CODE></A></H3>
-
-<P>
-In a deeply embedded application, you might want to use just
-the memory-to-memory functions.  You can do this conveniently
-by compiling the library with preprocessor symbol <CODE>BZ_NO_STDIO</CODE>
-defined.  Doing this gives you a library containing only the following
-eight functions:
-
-</P>
-<P>
-<CODE>BZ2_bzCompressInit</CODE>, <CODE>BZ2_bzCompress</CODE>, <CODE>BZ2_bzCompressEnd</CODE> <BR>
-<CODE>BZ2_bzDecompressInit</CODE>, <CODE>BZ2_bzDecompress</CODE>, <CODE>BZ2_bzDecompressEnd</CODE> <BR>
-<CODE>BZ2_bzBuffToBuffCompress</CODE>, <CODE>BZ2_bzBuffToBuffDecompress</CODE>
-
-</P>
-<P>
-When compiled like this, all functions will ignore <CODE>verbosity</CODE>
-settings.
-
-</P>
-
-
-<H3><A NAME="SEC41" HREF="manual_toc.html#TOC41">Critical error handling</A></H3>
-<P>
-<CODE>libbzip2</CODE> contains a number of internal assertion checks which
-should, needless to say, never be activated.  Nevertheless, if an
-assertion should fail, behaviour depends on whether or not the library
-was compiled with <CODE>BZ_NO_STDIO</CODE> set.
-
-</P>
-<P>
-For a normal compile, an assertion failure yields the message
-
-<PRE>
-   bzip2/libbzip2: internal error number N.
-   This is a bug in bzip2/libbzip2, 1.0 of 21-Mar-2000.
-   Please report it to me at: jseward@acm.org.  If this happened
-   when you were using some program which uses libbzip2 as a
-   component, you should also report this bug to the author(s)
-   of that program.  Please make an effort to report this bug;
-   timely and accurate bug reports eventually lead to higher
-   quality software.  Thanks.  Julian Seward, 21 March 2000.
-</PRE>
-
-<P>
-where <CODE>N</CODE> is some error code number.  <CODE>exit(3)</CODE>
-is then called.
-
-</P>
-<P>
-For a <CODE>stdio</CODE>-free library, assertion failures result
-in a call to a function declared as:
-
-<PRE>
-   extern void bz_internal_error ( int errcode );
-</PRE>
-
-<P>
-The relevant code is passed as a parameter.  You should supply
-such a function.
-
-</P>
-<P>
-In either case, once an assertion failure has occurred, any 
-<CODE>bz_stream</CODE> records involved can be regarded as invalid.
-You should not attempt to resume normal operation with them.
-
-</P>
-<P>
-You may, of course, change critical error handling to suit
-your needs.  As I said above, critical errors indicate bugs
-in the library and should not occur.  All "normal" error
-situations are indicated via error return codes from functions,
-and can be recovered from.
-
-</P>
-
-
-
-<H2><A NAME="SEC42" HREF="manual_toc.html#TOC42">Making a Windows DLL</A></H2>
-<P>
-Everything related to Windows has been contributed by Yoshioka Tsuneo
-<BR> (<CODE>QWF00133@niftyserve.or.jp</CODE> /
-<CODE>tsuneo-y@is.aist-nara.ac.jp</CODE>), so you should send your queries to
-him (but perhaps Cc: me, <CODE>jseward@acm.org</CODE>).
-
-</P>
-<P>
-My vague understanding of what to do is: using Visual C++ 5.0,
-open the project file <CODE>libbz2.dsp</CODE>, and build.  That's all.
-
-</P>
-<P>
-If you can't
-open the project file for some reason, make a new one, naming these files:
-<CODE>blocksort.c</CODE>, <CODE>bzlib.c</CODE>, <CODE>compress.c</CODE>, 
-<CODE>crctable.c</CODE>, <CODE>decompress.c</CODE>, <CODE>huffman.c</CODE>, <BR>
-<CODE>randtable.c</CODE> and <CODE>libbz2.def</CODE>.  You will also need
-to name the header files <CODE>bzlib.h</CODE> and <CODE>bzlib_private.h</CODE>.
-
-</P>
-<P>
-If you don't use VC++, you may need to define the proprocessor symbol
-<CODE>_WIN32</CODE>. 
-
-</P>
-<P>
-Finally, <CODE>dlltest.c</CODE> is a sample program using the DLL.  It has a
-project file, <CODE>dlltest.dsp</CODE>.
-
-</P>
-<P>
-If you just want a makefile for Visual C, have a look at
-<CODE>makefile.msc</CODE>.
-
-</P>
-<P>
-Be aware that if you compile <CODE>bzip2</CODE> itself on Win32, you must set
-<CODE>BZ_UNIX</CODE> to 0 and <CODE>BZ_LCCWIN32</CODE> to 1, in the file
-<CODE>bzip2.c</CODE>, before compiling.  Otherwise the resulting binary won't
-work correctly.
-
-</P>
-<P>
-I haven't tried any of this stuff myself, but it all looks plausible.
-
-</P>
-
-<P><HR><P>
-<p>Go to the <A HREF="manual_1.html">first</A>, <A HREF="manual_2.html">previous</A>, <A HREF="manual_4.html">next</A>, <A HREF="manual_4.html">last</A> section, <A HREF="manual_toc.html">table of contents</A>.
-</BODY>
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--- bzip2-1.0.1/manual_4.html   Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/manual_4.html       Thu Jan  1 01:00:00 1970
@@ -1,528 +0,0 @@
-<HTML>
-<HEAD>
-<!-- This HTML file has been created by texi2html 1.54
-     from manual.texi on 23 March 2000 -->
-
-<TITLE>bzip2 and libbzip2 - Miscellanea</TITLE>
-<link href="manual_3.html" rel=Previous>
-<link href="manual_toc.html" rel=ToC>
-
-</HEAD>
-<BODY>
-<p>Go to the <A HREF="manual_1.html">first</A>, <A HREF="manual_3.html">previous</A>, next, last section, <A HREF="manual_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC43" HREF="manual_toc.html#TOC43">Miscellanea</A></H1>
-
-<P>
-These are just some random thoughts of mine.  Your mileage may
-vary.
-
-</P>
-
-
-<H2><A NAME="SEC44" HREF="manual_toc.html#TOC44">Limitations of the compressed file format</A></H2>
-<P>
-<CODE>bzip2-1.0</CODE>, <CODE>0.9.5</CODE> and <CODE>0.9.0</CODE>
-use exactly the same file format as the previous
-version, <CODE>bzip2-0.1</CODE>.  This decision was made in the interests of
-stability.  Creating yet another incompatible compressed file format
-would create further confusion and disruption for users.
-
-</P>
-<P>
-Nevertheless, this is not a painless decision.  Development
-work since the release of <CODE>bzip2-0.1</CODE> in August 1997
-has shown complexities in the file format which slow down
-decompression and, in retrospect, are unnecessary.  These are:
-
-<UL>
-<LI>The run-length encoder, which is the first of the
-
-      compression transformations, is entirely irrelevant.
-      The original purpose was to protect the sorting algorithm
-      from the very worst case input: a string of repeated
-      symbols.  But algorithm steps Q6a and Q6b in the original
-      Burrows-Wheeler technical report (SRC-124) show how
-      repeats can be handled without difficulty in block
-      sorting.
-<LI>The randomisation mechanism doesn't really need to be
-
-      there.  Udi Manber and Gene Myers published a suffix
-      array construction algorithm a few years back, which
-      can be employed to sort any block, no matter how 
-      repetitive, in O(N log N) time.  Subsequent work by
-      Kunihiko Sadakane has produced a derivative O(N (log N)^2) 
-      algorithm which usually outperforms the Manber-Myers
-      algorithm.
-
-      I could have changed to Sadakane's algorithm, but I find
-      it to be slower than <CODE>bzip2</CODE>'s existing algorithm for
-      most inputs, and the randomisation mechanism protects
-      adequately against bad cases.  I didn't think it was
-      a good tradeoff to make.  Partly this is due to the fact
-      that I was not flooded with email complaints about
-      <CODE>bzip2-0.1</CODE>'s performance on repetitive data, so
-      perhaps it isn't a problem for real inputs.
-
-      Probably the best long-term solution,
-      and the one I have incorporated into 0.9.5 and above,
-      is to use the existing sorting
-      algorithm initially, and fall back to a O(N (log N)^2)
-      algorithm if the standard algorithm gets into difficulties.
-<LI>The compressed file format was never designed to be
-
-      handled by a library, and I have had to jump though
-      some hoops to produce an efficient implementation of
-      decompression.  It's a bit hairy.  Try passing
-      <CODE>decompress.c</CODE> through the C preprocessor 
-      and you'll see what I mean.  Much of this complexity
-      could have been avoided if the compressed size of
-      each block of data was recorded in the data stream.
-<LI>An Adler-32 checksum, rather than a CRC32 checksum,
-
-      would be faster to compute.
-</UL>
-
-<P>
-It would be fair to say that the <CODE>bzip2</CODE> format was frozen
-before I properly and fully understood the performance
-consequences of doing so.
-
-</P>
-<P>
-Improvements which I was able to incorporate into
-0.9.0, despite using the same file format, are:
-
-<UL>
-<LI>Single array implementation of the inverse BWT.  This
-
-      significantly speeds up decompression, presumably
-      because it reduces the number of cache misses.
-<LI>Faster inverse MTF transform for large MTF values.  The
-
-      new implementation is based on the notion of sliding blocks
-      of values.
-<LI><CODE>bzip2-0.9.0</CODE> now reads and writes files with <CODE>fread</CODE>
-
-      and <CODE>fwrite</CODE>; version 0.1 used <CODE>putc</CODE> and <CODE>getc</CODE>.
-      Duh!  Well, you live and learn.
-
-</UL>
-
-<P>
-Further ahead, it would be nice 
-to be able to do random access into files.  This will 
-require some careful design of compressed file formats.
-
-</P>
-
-
-
-<H2><A NAME="SEC45" HREF="manual_toc.html#TOC45">Portability issues</A></H2>
-<P>
-After some consideration, I have decided not to use
-GNU <CODE>autoconf</CODE> to configure 0.9.5 or 1.0.
-
-</P>
-<P>
-<CODE>autoconf</CODE>, admirable and wonderful though it is, 
-mainly assists with portability problems between Unix-like
-platforms.  But <CODE>bzip2</CODE> doesn't have much in the way
-of portability problems on Unix; most of the difficulties appear
-when porting to the Mac, or to Microsoft's operating systems.
-<CODE>autoconf</CODE> doesn't help in those cases, and brings in a 
-whole load of new complexity.
-
-</P>
-<P>
-Most people should be able to compile the library and program
-under Unix straight out-of-the-box, so to speak, especially 
-if you have a version of GNU C available.
-
-</P>
-<P>
-There are a couple of <CODE>__inline__</CODE> directives in the code.  GNU C
-(<CODE>gcc</CODE>) should be able to handle them.  If you're not using
-GNU C, your C compiler shouldn't see them at all.
-If your compiler does, for some reason, see them and doesn't
-like them, just <CODE>#define</CODE> <CODE>__inline__</CODE> to be <CODE>/* */</CODE>.  One
-easy way to do this is to compile with the flag <CODE>-D__inline__=</CODE>, 
-which should be understood by most Unix compilers.
-
-</P>
-<P>
-If you still have difficulties, try compiling with the macro
-<CODE>BZ_STRICT_ANSI</CODE> defined.  This should enable you to build the
-library in a strictly ANSI compliant environment.  Building the program
-itself like this is dangerous and not supported, since you remove
-<CODE>bzip2</CODE>'s checks against compressing directories, symbolic links,
-devices, and other not-really-a-file entities.  This could cause
-filesystem corruption!
-
-</P>
-<P>
-One other thing: if you create a <CODE>bzip2</CODE> binary for public
-distribution, please try and link it statically (<CODE>gcc -s</CODE>).  This
-avoids all sorts of library-version issues that others may encounter
-later on.
-
-</P>
-<P>
-If you build <CODE>bzip2</CODE> on Win32, you must set <CODE>BZ_UNIX</CODE> to 0 and
-<CODE>BZ_LCCWIN32</CODE> to 1, in the file <CODE>bzip2.c</CODE>, before compiling.
-Otherwise the resulting binary won't work correctly.
-
-</P>
-
-
-
-<H2><A NAME="SEC46" HREF="manual_toc.html#TOC46">Reporting bugs</A></H2>
-<P>
-I tried pretty hard to make sure <CODE>bzip2</CODE> is
-bug free, both by design and by testing.  Hopefully
-you'll never need to read this section for real.
-
-</P>
-<P>
-Nevertheless, if <CODE>bzip2</CODE> dies with a segmentation
-fault, a bus error or an internal assertion failure, it
-will ask you to email me a bug report.  Experience with
-version 0.1 shows that almost all these problems can
-be traced to either compiler bugs or hardware problems.
-
-<UL>
-<LI>
-
-Recompile the program with no optimisation, and see if it
-works.  And/or try a different compiler.
-I heard all sorts of stories about various flavours
-of GNU C (and other compilers) generating bad code for
-<CODE>bzip2</CODE>, and I've run across two such examples myself.
-
-2.7.X versions of GNU C are known to generate bad code from
-time to time, at high optimisation levels.  
-If you get problems, try using the flags
-<CODE>-O2</CODE> <CODE>-fomit-frame-pointer</CODE> <CODE>-fno-strength-reduce</CODE>.
-You should specifically <EM>not</EM> use <CODE>-funroll-loops</CODE>.
-
-You may notice that the Makefile runs six tests as part of
-the build process.  If the program passes all of these, it's
-a pretty good (but not 100%) indication that the compiler has
-done its job correctly.
-<LI>
-
-If <CODE>bzip2</CODE> crashes randomly, and the crashes are not
-repeatable, you may have a flaky memory subsystem.  <CODE>bzip2</CODE>
-really hammers your memory hierarchy, and if it's a bit marginal,
-you may get these problems.  Ditto if your disk or I/O subsystem
-is slowly failing.  Yup, this really does happen.
-
-Try using a different machine of the same type, and see if
-you can repeat the problem.
-<LI>This isn't really a bug, but ... If <CODE>bzip2</CODE> tells
-
-you your file is corrupted on decompression, and you
-obtained the file via FTP, there is a possibility that you
-forgot to tell FTP to do a binary mode transfer.  That absolutely
-will cause the file to be non-decompressible.  You'll have to transfer
-it again.
-</UL>
-
-<P>
-If you've incorporated <CODE>libbzip2</CODE> into your own program
-and are getting problems, please, please, please, check that the 
-parameters you are passing in calls to the library, are
-correct, and in accordance with what the documentation says
-is allowable.  I have tried to make the library robust against
-such problems, but I'm sure I haven't succeeded.
-
-</P>
-<P>
-Finally, if the above comments don't help, you'll have to send
-me a bug report.  Now, it's just amazing how many people will 
-send me a bug report saying something like
-
-<PRE>
-   bzip2 crashed with segmentation fault on my machine
-</PRE>
-
-<P>
-and absolutely nothing else.  Needless to say, a such a report
-is <EM>totally, utterly, completely and comprehensively 100% useless; 
-a waste of your time, my time, and net bandwidth</EM>.
-With no details at all, there's no way I can possibly begin
-to figure out what the problem is.
-
-</P>
-<P>
-The rules of the game are: facts, facts, facts.  Don't omit
-them because "oh, they won't be relevant".  At the bare 
-minimum:
-
-<PRE>
-   Machine type.  Operating system version.  
-   Exact version of <CODE>bzip2</CODE> (do <CODE>bzip2 -V</CODE>).  
-   Exact version of the compiler used.  
-   Flags passed to the compiler.
-</PRE>
-
-<P>
-However, the most important single thing that will help me is
-the file that you were trying to compress or decompress at the
-time the problem happened.  Without that, my ability to do anything
-more than speculate about the cause, is limited.
-
-</P>
-<P>
-Please remember that I connect to the Internet with a modem, so
-you should contact me before mailing me huge files.
-
-</P>
-
-
-
-<H2><A NAME="SEC47" HREF="manual_toc.html#TOC47">Did you get the right package?</A></H2>
-
-<P>
-<CODE>bzip2</CODE> is a resource hog.  It soaks up large amounts of CPU cycles
-and memory.  Also, it gives very large latencies.  In the worst case, you
-can feed many megabytes of uncompressed data into the library before
-getting any compressed output, so this probably rules out applications
-requiring interactive behaviour.
-
-</P>
-<P>
-These aren't faults of my implementation, I hope, but more
-an intrinsic property of the Burrows-Wheeler transform (unfortunately).  
-Maybe this isn't what you want.
-
-</P>
-<P>
-If you want a compressor and/or library which is faster, uses less
-memory but gets pretty good compression, and has minimal latency,
-consider Jean-loup
-Gailly's and Mark Adler's work, <CODE>zlib-1.1.2</CODE> and
-<CODE>gzip-1.2.4</CODE>.  Look for them at
-
-</P>
-<P>
-<CODE>http://www.cdrom.com/pub/infozip/zlib</CODE> and
-<CODE>http://www.gzip.org</CODE> respectively.
-
-</P>
-<P>
-For something faster and lighter still, you might try Markus F X J
-Oberhumer's <CODE>LZO</CODE> real-time compression/decompression library, at
-<BR> <CODE>http://wildsau.idv.uni-linz.ac.at/mfx/lzo.html</CODE>.
-
-</P>
-<P>
-If you want to use the <CODE>bzip2</CODE> algorithms to compress small blocks
-of data, 64k bytes or smaller, for example on an on-the-fly disk
-compressor, you'd be well advised not to use this library.  Instead,
-I've made a special library tuned for that kind of use.  It's part of
-<CODE>e2compr-0.40</CODE>, an on-the-fly disk compressor for the Linux
-<CODE>ext2</CODE> filesystem.  Look at
-<CODE>http://www.netspace.net.au/~reiter/e2compr</CODE>.
-
-</P>
-
-
-
-<H2><A NAME="SEC48" HREF="manual_toc.html#TOC48">Testing</A></H2>
-
-<P>
-A record of the tests I've done.
-
-</P>
-<P>
-First, some data sets:
-
-<UL>
-<LI>B: a directory containing 6001 files, one for every length in the
-
-      range 0 to 6000 bytes.  The files contain random lowercase
-      letters.  18.7 megabytes.
-<LI>H: my home directory tree.  Documents, source code, mail files,
-
-      compressed data.  H contains B, and also a directory of 
-      files designed as boundary cases for the sorting; mostly very
-      repetitive, nasty files.  565 megabytes.
-<LI>A: directory tree holding various applications built from source:
-
-      <CODE>egcs</CODE>, <CODE>gcc-2.8.1</CODE>, KDE, GTK, Octave, etc.
-      2200 megabytes.
-</UL>
-
-<P>
-The tests conducted are as follows.  Each test means compressing 
-(a copy of) each file in the data set, decompressing it and
-comparing it against the original.
-
-</P>
-<P>
-First, a bunch of tests with block sizes and internal buffer
-sizes set very small, 
-to detect any problems with the
-blocking and buffering mechanisms.  
-This required modifying the source code so as to try to 
-break it.
-
-<OL>
-<LI>Data set H, with
-
-      buffer size of 1 byte, and block size of 23 bytes.
-<LI>Data set B, buffer sizes 1 byte, block size 1 byte.
-
-<LI>As (2) but small-mode decompression.
-
-<LI>As (2) with block size 2 bytes.
-
-<LI>As (2) with block size 3 bytes.
-
-<LI>As (2) with block size 4 bytes.
-
-<LI>As (2) with block size 5 bytes.
-
-<LI>As (2) with block size 6 bytes and small-mode decompression.
-
-<LI>H with buffer size of 1 byte, but normal block
-
-      size (up to 900000 bytes).
-</OL>
-
-<P>
-Then some tests with unmodified source code.
-
-<OL>
-<LI>H, all settings normal.
-
-<LI>As (1), with small-mode decompress.
-
-<LI>H, compress with flag <CODE>-1</CODE>.
-
-<LI>H, compress with flag <CODE>-s</CODE>, decompress with flag <CODE>-s</CODE>.
-
-<LI>Forwards compatibility: H, <CODE>bzip2-0.1pl2</CODE> compressing,
-
-      <CODE>bzip2-0.9.5</CODE> decompressing, all settings normal.
-<LI>Backwards compatibility:  H, <CODE>bzip2-0.9.5</CODE> compressing,
-
-      <CODE>bzip2-0.1pl2</CODE> decompressing, all settings normal.
-<LI>Bigger tests: A, all settings normal.
-
-<LI>As (7), using the fallback (Sadakane-like) sorting algorithm.
-
-<LI>As (8), compress with flag <CODE>-1</CODE>, decompress with flag
-
-      <CODE>-s</CODE>.
-<LI>H, using the fallback sorting algorithm.
-
-<LI>Forwards compatibility: A, <CODE>bzip2-0.1pl2</CODE> compressing,
-
-      <CODE>bzip2-0.9.5</CODE> decompressing, all settings normal.
-<LI>Backwards compatibility:  A, <CODE>bzip2-0.9.5</CODE> compressing,
-
-      <CODE>bzip2-0.1pl2</CODE> decompressing, all settings normal.
-<LI>Misc test: about 400 megabytes of <CODE>.tar</CODE> files with
-
-      <CODE>bzip2</CODE> compiled with Checker (a memory access error
-       detector, like Purify).
-<LI>Misc tests to make sure it builds and runs ok on non-Linux/x86
-
-      platforms.
-</OL>
-
-<P>
-These tests were conducted on a 225 MHz IDT WinChip machine, running
-Linux 2.0.36.  They represent nearly a week of continuous computation.
-All tests completed successfully.
-
-</P>
-
-
-
-<H2><A NAME="SEC49" HREF="manual_toc.html#TOC49">Further reading</A></H2>
-<P>
-<CODE>bzip2</CODE> is not research work, in the sense that it doesn't present
-any new ideas.  Rather, it's an engineering exercise based on existing
-ideas.
-
-</P>
-<P>
-Four documents describe essentially all the ideas behind <CODE>bzip2</CODE>:
-
-<PRE>
-Michael Burrows and D. J. Wheeler:
-  "A block-sorting lossless data compression algorithm"
-   10th May 1994. 
-   Digital SRC Research Report 124.
-   ftp://ftp.digital.com/pub/DEC/SRC/research-reports/SRC-124.ps.gz
-   If you have trouble finding it, try searching at the
-   New Zealand Digital Library, http://www.nzdl.org.
-
-Daniel S. Hirschberg and Debra A. LeLewer
-  "Efficient Decoding of Prefix Codes"
-   Communications of the ACM, April 1990, Vol 33, Number 4.
-   You might be able to get an electronic copy of this
-      from the ACM Digital Library.
-
-David J. Wheeler
-   Program bred3.c and accompanying document bred3.ps.
-   This contains the idea behind the multi-table Huffman
-   coding scheme.
-   ftp://ftp.cl.cam.ac.uk/users/djw3/
-
-Jon L. Bentley and Robert Sedgewick
-  "Fast Algorithms for Sorting and Searching Strings"
-   Available from Sedgewick's web page,
-   www.cs.princeton.edu/~rs
-</PRE>
-
-<P>
-The following paper gives valuable additional insights into the
-algorithm, but is not immediately the basis of any code
-used in bzip2.
-
-<PRE>
-Peter Fenwick:
-   Block Sorting Text Compression
-   Proceedings of the 19th Australasian Computer Science Conference,
-     Melbourne, Australia.  Jan 31 - Feb 2, 1996.
-   ftp://ftp.cs.auckland.ac.nz/pub/peter-f/ACSC96paper.ps
-</PRE>
-
-<P>
-Kunihiko Sadakane's sorting algorithm, mentioned above,
-is available from:
-
-<PRE>
-http://naomi.is.s.u-tokyo.ac.jp/~sada/papers/Sada98b.ps.gz
-</PRE>
-
-<P>
-The Manber-Myers suffix array construction
-algorithm is described in a paper
-available from:
-
-<PRE>
-http://www.cs.arizona.edu/people/gene/PAPERS/suffix.ps
-</PRE>
-
-<P>
-Finally, the following paper documents some recent investigations
-I made into the performance of sorting algorithms:
-
-<PRE>
-Julian Seward:
-   On the Performance of BWT Sorting Algorithms
-   Proceedings of the IEEE Data Compression Conference 2000
-     Snowbird, Utah.  28-30 March 2000.
-</PRE>
-
-<P><HR><P>
-<p>Go to the <A HREF="manual_1.html">first</A>, <A HREF="manual_3.html">previous</A>, next, last section, <A HREF="manual_toc.html">table of contents</A>.
-</BODY>
-</HTML>
diff -Nru bzip2-1.0.1/manual_toc.html bzip2-1.0.1.new/manual_toc.html
--- bzip2-1.0.1/manual_toc.html Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/manual_toc.html     Thu Jan  1 01:00:00 1970
@@ -1,173 +0,0 @@
-<HTML>
-<HEAD>
-<!-- This HTML file has been created by texi2html 1.54
-     from manual.texi on 23 March 2000 -->
-
-<TITLE>bzip2 and libbzip2 - Table of Contents</TITLE>
-
-</HEAD>
-<BODY>
-<H1>bzip2 and libbzip2</H1>
-<H2>a program and library for data compression</H2>
-<H2>copyright (C) 1996-2000 Julian Seward</H2>
-<H2>version 1.0 of 21 March 2000</H2>
-<ADDRESS>Julian Seward</ADDRESS>
-<P>
-<P><HR><P>
-
-<P>
-This program, <CODE>bzip2</CODE>, 
-and associated library <CODE>libbzip2</CODE>, are
-Copyright (C) 1996-2000 Julian R Seward.  All rights reserved.
-
-</P>
-<P>
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-<UL>
-<LI>
-
-   Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-<LI>
-
-   The origin of this software must not be misrepresented; you must 
-   not claim that you wrote the original software.  If you use this 
-   software in a product, an acknowledgment in the product 
-   documentation would be appreciated but is not required.
-<LI>
-
-   Altered source versions must be plainly marked as such, and must
-   not be misrepresented as being the original software.
-<LI>
-
-   The name of the author may not be used to endorse or promote 
-   products derived from this software without specific prior written 
-   permission.
-</UL>
-
-<P>
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS
-OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
-DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
-GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-</P>
-<P>
-Julian Seward, Cambridge, UK.
-
-</P>
-<P>
-<CODE>jseward@acm.org</CODE>
-
-</P>
-<P>
-<CODE>http://sourceware.cygnus.com/bzip2</CODE>
-
-</P>
-<P>
-<CODE>http://www.cacheprof.org</CODE>
-
-</P>
-<P>
-<CODE>http://www.muraroa.demon.co.uk</CODE>
-
-</P>
-<P>
-<CODE>bzip2</CODE>/<CODE>libbzip2</CODE> version 1.0 of 21 March 2000.
-
-</P>
-<P>
-PATENTS: To the best of my knowledge, <CODE>bzip2</CODE> does not use any patented
-algorithms.  However, I do not have the resources available to carry out
-a full patent search.  Therefore I cannot give any guarantee of the
-above statement.
-
-</P>
-
-<UL>
-<LI><A NAME="TOC1" HREF="manual_1.html#SEC1">Introduction</A>
-<LI><A NAME="TOC2" HREF="manual_2.html#SEC2">How to use <CODE>bzip2</CODE></A>
-<UL>
-<UL>
-<UL>
-<LI><A NAME="TOC3" HREF="manual_2.html#SEC3">NAME</A>
-<LI><A NAME="TOC4" HREF="manual_2.html#SEC4">SYNOPSIS</A>
-<LI><A NAME="TOC5" HREF="manual_2.html#SEC5">DESCRIPTION</A>
-<LI><A NAME="TOC6" HREF="manual_2.html#SEC6">OPTIONS</A>
-<LI><A NAME="TOC7" HREF="manual_2.html#SEC7">MEMORY MANAGEMENT</A>
-<LI><A NAME="TOC8" HREF="manual_2.html#SEC8">RECOVERING DATA FROM DAMAGED FILES</A>
-<LI><A NAME="TOC9" HREF="manual_2.html#SEC9">PERFORMANCE NOTES</A>
-<LI><A NAME="TOC10" HREF="manual_2.html#SEC10">CAVEATS</A>
-<LI><A NAME="TOC11" HREF="manual_2.html#SEC11">AUTHOR</A>
-</UL>
-</UL>
-</UL>
-<LI><A NAME="TOC12" HREF="manual_3.html#SEC12">Programming with <CODE>libbzip2</CODE></A>
-<UL>
-<LI><A NAME="TOC13" HREF="manual_3.html#SEC13">Top-level structure</A>
-<UL>
-<LI><A NAME="TOC14" HREF="manual_3.html#SEC14">Low-level summary</A>
-<LI><A NAME="TOC15" HREF="manual_3.html#SEC15">High-level summary</A>
-<LI><A NAME="TOC16" HREF="manual_3.html#SEC16">Utility functions summary</A>
-</UL>
-<LI><A NAME="TOC17" HREF="manual_3.html#SEC17">Error handling</A>
-<LI><A NAME="TOC18" HREF="manual_3.html#SEC18">Low-level interface</A>
-<UL>
-<LI><A NAME="TOC19" HREF="manual_3.html#SEC19"><CODE>BZ2_bzCompressInit</CODE></A>
-<LI><A NAME="TOC20" HREF="manual_3.html#SEC20"><CODE>BZ2_bzCompress</CODE></A>
-<LI><A NAME="TOC21" HREF="manual_3.html#SEC21"><CODE>BZ2_bzCompressEnd</CODE></A>
-<LI><A NAME="TOC22" HREF="manual_3.html#SEC22"><CODE>BZ2_bzDecompressInit</CODE></A>
-<LI><A NAME="TOC23" HREF="manual_3.html#SEC23"><CODE>BZ2_bzDecompress</CODE></A>
-<LI><A NAME="TOC24" HREF="manual_3.html#SEC24"><CODE>BZ2_bzDecompressEnd</CODE></A>
-</UL>
-<LI><A NAME="TOC25" HREF="manual_3.html#SEC25">High-level interface</A>
-<UL>
-<LI><A NAME="TOC26" HREF="manual_3.html#SEC26"><CODE>BZ2_bzReadOpen</CODE></A>
-<LI><A NAME="TOC27" HREF="manual_3.html#SEC27"><CODE>BZ2_bzRead</CODE></A>
-<LI><A NAME="TOC28" HREF="manual_3.html#SEC28"><CODE>BZ2_bzReadGetUnused</CODE></A>
-<LI><A NAME="TOC29" HREF="manual_3.html#SEC29"><CODE>BZ2_bzReadClose</CODE></A>
-<LI><A NAME="TOC30" HREF="manual_3.html#SEC30"><CODE>BZ2_bzWriteOpen</CODE></A>
-<LI><A NAME="TOC31" HREF="manual_3.html#SEC31"><CODE>BZ2_bzWrite</CODE></A>
-<LI><A NAME="TOC32" HREF="manual_3.html#SEC32"><CODE>BZ2_bzWriteClose</CODE></A>
-<LI><A NAME="TOC33" HREF="manual_3.html#SEC33">Handling embedded compressed data streams</A>
-<LI><A NAME="TOC34" HREF="manual_3.html#SEC34">Standard file-reading/writing code</A>
-</UL>
-<LI><A NAME="TOC35" HREF="manual_3.html#SEC35">Utility functions</A>
-<UL>
-<LI><A NAME="TOC36" HREF="manual_3.html#SEC36"><CODE>BZ2_bzBuffToBuffCompress</CODE></A>
-<LI><A NAME="TOC37" HREF="manual_3.html#SEC37"><CODE>BZ2_bzBuffToBuffDecompress</CODE></A>
-</UL>
-<LI><A NAME="TOC38" HREF="manual_3.html#SEC38"><CODE>zlib</CODE> compatibility functions</A>
-<LI><A NAME="TOC39" HREF="manual_3.html#SEC39">Using the library in a <CODE>stdio</CODE>-free environment</A>
-<UL>
-<LI><A NAME="TOC40" HREF="manual_3.html#SEC40">Getting rid of <CODE>stdio</CODE></A>
-<LI><A NAME="TOC41" HREF="manual_3.html#SEC41">Critical error handling</A>
-</UL>
-<LI><A NAME="TOC42" HREF="manual_3.html#SEC42">Making a Windows DLL</A>
-</UL>
-<LI><A NAME="TOC43" HREF="manual_4.html#SEC43">Miscellanea</A>
-<UL>
-<LI><A NAME="TOC44" HREF="manual_4.html#SEC44">Limitations of the compressed file format</A>
-<LI><A NAME="TOC45" HREF="manual_4.html#SEC45">Portability issues</A>
-<LI><A NAME="TOC46" HREF="manual_4.html#SEC46">Reporting bugs</A>
-<LI><A NAME="TOC47" HREF="manual_4.html#SEC47">Did you get the right package?</A>
-<LI><A NAME="TOC48" HREF="manual_4.html#SEC48">Testing</A>
-<LI><A NAME="TOC49" HREF="manual_4.html#SEC49">Further reading</A>
-</UL>
-</UL>
-<P><HR><P>
-This document was generated on 23 March 2000 using the
-<A HREF="http://wwwcn.cern.ch/dci/texi2html/">texi2html</A>
-translator version 1.51a.</P>
-</BODY>
-</HTML>
diff -Nru bzip2-1.0.1/randtable.c bzip2-1.0.1.new/randtable.c
--- bzip2-1.0.1/randtable.c     Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/randtable.c Sat Jun 24 20:13:06 2000
@@ -58,6 +58,10 @@
   For more information on these sources, see the manual.
 --*/
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 
 #include "bzlib_private.h"
 
diff -Nru bzip2-1.0.1/spewG.c bzip2-1.0.1.new/spewG.c
--- bzip2-1.0.1/spewG.c Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/spewG.c     Sat Jun 24 20:13:06 2000
@@ -9,7 +9,10 @@
    (but is otherwise harmless).
 */
 
-#define _FILE_OFFSET_BITS 64
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 
 #include <stdio.h>
 #include <stdlib.h>
diff -Nru bzip2-1.0.1/stamp-h.in bzip2-1.0.1.new/stamp-h.in
--- bzip2-1.0.1/stamp-h.in      Thu Jan  1 01:00:00 1970
+++ bzip2-1.0.1.new/stamp-h.in  Sat Jun 24 20:13:06 2000
@@ -0,0 +1 @@
+timestamp
diff -Nru bzip2-1.0.1/unzcrash.c bzip2-1.0.1.new/unzcrash.c
--- bzip2-1.0.1/unzcrash.c      Sat Jun 24 20:13:27 2000
+++ bzip2-1.0.1.new/unzcrash.c  Sat Jun 24 20:13:06 2000
@@ -13,6 +13,12 @@
    many hours.
 */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+
+
 #include <stdio.h>
 #include <assert.h>
 #include "bzlib.h"