- CHECK_ZLIB definition copied from config/aclocal.m4 (enables png support)

Changed files:
    exiv2-png_support.patch -> 1.1

diff --git a/exiv2-png_support.patch b/exiv2-png_support.patch
new file mode 100644 (file)
index 0000000..135976c
--- /dev/null
+++ b/exiv2-png_support.patch
@@ -0,0 +1,93 @@
+--- exiv2-0.17.1/acinclude.m4.orig     1970-01-01 01:00:00.000000000 +0100
++++ exiv2-0.17.1/acinclude.m4  2008-07-21 13:52:55.923794430 +0200
+@@ -0,0 +1,90 @@
++dnl @synopsis CHECK_ZLIB()
++dnl
++dnl This macro searches for an installed zlib library. If nothing
++dnl was specified when calling configure, it searches first in /usr/local
++dnl and then in /usr. If the --with-zlib=DIR is specified, it will try
++dnl to find it in DIR/include/zlib.h and DIR/lib/libz.a. If --without-zlib
++dnl is specified, the library is not searched at all.
++dnl
++dnl If either the header file (zlib.h) or the library (libz) is not
++dnl found, the configuration exits on error, asking for a valid
++dnl zlib installation directory or --without-zlib.
++dnl
++dnl The macro defines the symbol HAVE_LIBZ if the library is found. You should
++dnl use autoheader to include a definition for this symbol in a config.h
++dnl file. Sample usage in a C/C++ source is as follows:
++dnl
++dnl   #ifdef HAVE_LIBZ
++dnl   #include <zlib.h>
++dnl   #endif /* HAVE_LIBZ */
++dnl
++dnl @version $Id$
++dnl @author Loic Dachary <loic@senga.org>
++dnl with modifications by Andreas Huggel <ahuggel@gmx.net>
++dnl
++AC_DEFUN([CHECK_ZLIB],
++#
++# Handle user hints
++#
++[AC_MSG_CHECKING(if zlib is wanted)
++AC_ARG_WITH(zlib,
++[  --with-zlib=DIR root directory path of zlib installation [defaults to
++                  /usr/local or /usr if not found in /usr/local]
++  --without-zlib to disable zlib usage completely],
++[if test "$withval" != no ; then
++  AC_MSG_RESULT(yes)
++  ZLIB_HOME="$withval"
++else
++  AC_MSG_RESULT(no)
++fi], [
++AC_MSG_RESULT(yes)
++ZLIB_HOME=/usr/local
++if test ! -f "${ZLIB_HOME}/include/zlib.h"
++then
++      ZLIB_HOME=/usr
++fi
++])
++#
++# Locate zlib, if wanted
++#
++if test -n "${ZLIB_HOME}"
++then
++      ZLIB_OLD_LDFLAGS=$LDFLAGS
++      ZLIB_OLD_CPPFLAGS=$CPPFLAGS
++      #
++      # Adding /usr/lib or /usr/include to the flags/libs may
++      # hurt if using a compiler not installed in the standard 
++      # place.
++      #
++        if test "${ZLIB_HOME}" != "/usr"
++      then
++              LDFLAGS="$LDFLAGS -L${ZLIB_HOME}/lib"
++              CPPFLAGS="$CPPFLAGS -I${ZLIB_HOME}/include"
++      fi
++        AC_LANG_SAVE
++        AC_LANG_C
++      AC_CHECK_LIB(z, inflateEnd, [zlib_cv_libz=yes], [zlib_cv_libz=no])
++        AC_CHECK_HEADER(zlib.h, [zlib_cv_zlib_h=yes], [zlib_cv_zlib_h=no])
++        AC_LANG_RESTORE
++      if test "$zlib_cv_libz" = "yes" -a "$zlib_cv_zlib_h" = "yes"
++      then
++              #
++              # If both library and header were found, use them
++              #
++              AC_CHECK_LIB(z, inflateEnd)
++              AC_MSG_CHECKING(zlib in ${ZLIB_HOME})
++              AC_MSG_RESULT(ok)
++              HAVE_LIBZ=1
++      else
++              #
++              # If either header or library was not found, revert and bomb
++              #
++              AC_MSG_CHECKING(zlib in ${ZLIB_HOME})
++              LDFLAGS="$ZLIB_OLD_LDFLAGS"
++              CPPFLAGS="$ZLIB_OLD_CPPFLAGS"
++              AC_MSG_RESULT(failed)
++              AC_MSG_ERROR(either specify a valid zlib installation with --with-zlib=DIR or disable zlib usage with --without-zlib)
++      fi
++fi
++
++])