gcc4-ldbl-default.patch

   1 2006-02-10  Jakub Jelinek  <jakub@redhat.com>
   2
   3         * doc/install.texi (Options specification): Document
   4         --with-long-double-128.
   5
   6 2006-02-05  Jakub Jelinek  <jakub@redhat.com>
   7
   8         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
   9         (sparc64-*-linux*): Likewise.
  10         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
  11         * config/sparc/t-linux: New file.
  12         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
  13         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
  14         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
  15         -m32 -mlong-double-128.
  16
  17         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
  18         * config/alpha/t-linux: New file.
  19         * config/alpha/libgcc-alpha-ldbl.ver: New file.
  20
  21 2006-02-04  Jakub Jelinek  <jakub@redhat.com>
  22
  23         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
  24         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
  25         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
  26         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
  27         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
  28         (CPP_ARCH32_SPEC): Remove.
  29
  30 2006-02-03  Aldy Hernandez  <aldyh@redhat.com>
  31
  32         * config/s390/s390.c (override_options): Handle
  33         TARGET_DEFAULT_LONG_DOUBLE_128.
  34
  35         * config/alpha/alpha.c (override_options): Handle
  36         TARGET_DEFAULT_LONG_DOUBLE_128.
  37
  38         * config/sparc/sparc.c (sparc_override_options): Handle
  39         TARGET_DEFAULT_LONG_DOUBLE_128.
  40
  41 2006-02-04  Jakub Jelinek  <jakub@redhat.com>
  42
  43         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
  44         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
  45         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
  46         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
  47
  48         * configure.ac: Add --with{out}-long-double-128 configure option.
  49         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
  50         * configure: Rebuilt.
  51         * config.in: Rebuilt.
  52
  53 --- gcc/config/rs6000/linux.h.jj        2006-02-04 11:46:38.000000000 +0100
  54 +++ gcc/config/rs6000/linux.h   2006-02-04 11:47:18.000000000 +0100
  55 @@ -120,3 +120,8 @@
  56  #endif
  57
  58  #define POWERPC_LINUX
  59 +
  60 +/* ppc linux has 128-bit long double support in glibc 2.4 and later.  */
  61 +#ifdef TARGET_DEFAULT_LONG_DOUBLE_128
  62 +#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128
  63 +#endif
  64 --- gcc/config/rs6000/linux64.h.jj      2006-02-04 11:46:38.000000000 +0100
  65 +++ gcc/config/rs6000/linux64.h 2006-02-04 11:47:37.000000000 +0100
  66 @@ -570,3 +570,8 @@ while (0)
  67  #endif
  68
  69  #define POWERPC_LINUX
  70 +
  71 +/* ppc{32,64} linux has 128-bit long double support in glibc 2.4 and later.  */
  72 +#ifdef TARGET_DEFAULT_LONG_DOUBLE_128
  73 +#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128
  74 +#endif
  75 --- gcc/configure.ac.jj 2006-02-04 10:42:42.000000000 +0100
  76 +++ gcc/configure.ac    2006-02-04 10:44:51.000000000 +0100
  77 @@ -3135,6 +3135,39 @@ if test x$gcc_cv_libc_provides_ssp = xye
  78             [Define if your target C library provides stack protector support])
  79  fi
  80
  81 +# Check if TFmode long double should be used by default or not.
  82 +# Some glibc targets used DFmode long double, but with glibc 2.4
  83 +# and later they can use TFmode.
  84 +case "$target" in
  85 +  powerpc*-*-*gnu* | \
  86 +  sparc*-*-linux* | \
  87 +  s390*-*-linux* | \
  88 +  alpha*-*-linux*)
  89 +    AC_ARG_WITH(long-double-128,
  90 +[  --with-long-double-128  Use 128-bit long double by default.],
  91 +      gcc_cv_target_ldbl128="$with_long_double_128",
  92 +      [gcc_cv_target_ldbl128=no
  93 +      if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
  94 +       if test "x$with_sysroot" = x; then
  95 +         glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
  96 +       elif test "x$with_sysroot" = xyes; then
  97 +         glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
  98 +       else
  99 +         glibc_header_dir="${with_sysroot}/usr/include"
 100 +       fi
 101 +      else
 102 +       glibc_header_dir=/usr/include
 103 +      fi
 104 +      grep '^[         ]*#[    ]*define[       ][      ]*__LONG_DOUBLE_MATH_OPTIONAL' \
 105 +        $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \
 106 +      && gcc_cv_target_ldbl128=yes])
 107 +    ;;
 108 +esac
 109 +if test x$gcc_cv_target_ldbl128 = xyes; then
 110 +  AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1,
 111 +           [Define if TFmode long double should be the default])
 112 +fi
 113 +
 114  # Find out what GC implementation we want, or may, use.
 115  AC_ARG_WITH(gc,
 116  [  --with-gc={page,zone}   choose the garbage collection mechanism to use
 117 --- gcc/configure.jj    2006-02-04 10:42:41.000000000 +0100
 118 +++ gcc/configure       2006-02-04 10:46:54.000000000 +0100
 119 @@ -931,6 +931,7 @@ Optional Packages:
 120    --with-libiconv-prefix[=DIR]  search for libiconv in DIR/include and DIR/lib
 121    --without-libiconv-prefix     don't search for libiconv in includedir and libdir
 122    --with-system-libunwind use installed libunwind
 123 +  --with-long-double-128  Use 128-bit long double by default.
 124    --with-gc={page,zone}   choose the garbage collection mechanism to use
 125                            with the compiler
 126    --with-system-zlib      use installed libz
 127 @@ -7492,7 +7493,7 @@ if test "${gcc_cv_prog_makeinfo_modern+s
 128  else
 129      ac_prog_version=`$MAKEINFO --version 2>&1 |
 130                     sed -n 's/^.*GNU texinfo.* \([0-9][0-9.]*\).*$/\1/p'`
 131 -  echo "configure:7495: version of makeinfo is $ac_prog_version" >&5
 132 +  echo "configure:7496: version of makeinfo is $ac_prog_version" >&5
 133    case $ac_prog_version in
 134      '')     gcc_cv_prog_makeinfo_modern=no;;
 135      4.[2-9]*)
 136 @@ -16227,6 +16228,46 @@ _ACEOF
 137
 138  fi
 139
 140 +# Check if TFmode long double should be used by default or not.
 141 +# Some glibc targets used DFmode long double, but with glibc 2.4
 142 +# and later they can use TFmode.
 143 +case "$target" in
 144 +  powerpc*-*-*gnu* | \
 145 +  sparc*-*-linux* | \
 146 +  s390*-*-linux* | \
 147 +  alpha*-*-linux*)
 148 +
 149 +# Check whether --with-long-double-128 or --without-long-double-128 was given.
 150 +if test "${with_long_double_128+set}" = set; then
 151 +  withval="$with_long_double_128"
 152 +  gcc_cv_target_ldbl128="$with_long_double_128"
 153 +else
 154 +  gcc_cv_target_ldbl128=no
 155 +      if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
 156 +       if test "x$with_sysroot" = x; then
 157 +         glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
 158 +       elif test "x$with_sysroot" = xyes; then
 159 +         glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
 160 +       else
 161 +         glibc_header_dir="${with_sysroot}/usr/include"
 162 +       fi
 163 +      else
 164 +       glibc_header_dir=/usr/include
 165 +      fi
 166 +      grep '^  *#[     ]*define[       ][      ]*__LONG_DOUBLE_MATH_OPTIONAL' \
 167 +        $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \
 168 +      && gcc_cv_target_ldbl128=yes
 169 +fi;
 170 +    ;;
 171 +esac
 172 +if test x$gcc_cv_target_ldbl128 = xyes; then
 173 +
 174 +cat >>confdefs.h <<\_ACEOF
 175 +#define TARGET_DEFAULT_LONG_DOUBLE_128 1
 176 +_ACEOF
 177 +
 178 +fi
 179 +
 180  # Find out what GC implementation we want, or may, use.
 181
 182  # Check whether --with-gc or --without-gc was given.
 183 --- gcc/config.in.jj    2006-02-04 10:42:42.000000000 +0100
 184 +++ gcc/config.in       2006-02-04 10:44:51.000000000 +0100
 185 @@ -1283,6 +1283,12 @@
 186  #endif
 187
 188
 189 +/* Define if TFmode long double should be the default */
 190 +#ifndef USED_FOR_TARGET
 191 +#undef TARGET_DEFAULT_LONG_DOUBLE_128
 192 +#endif
 193 +
 194 +
 195  /* Define if your target C library provides stack protector support */
 196  #ifndef USED_FOR_TARGET
 197  #undef TARGET_LIBC_PROVIDES_SSP
 198 --- gcc/config/alpha/alpha.c.jj 2006-02-04 10:42:41.000000000 +0100
 199 +++ gcc/config/alpha/alpha.c    2006-02-04 12:36:09.000000000 +0100
 200 @@ -501,6 +516,11 @@ override_options (void)
 201        REAL_MODE_FORMAT (DFmode) = &vax_g_format;
 202        REAL_MODE_FORMAT (TFmode) = NULL;
 203      }
 204 +
 205 +#ifdef TARGET_DEFAULT_LONG_DOUBLE_128
 206 +  if (!(target_flags_explicit & MASK_LONG_DOUBLE_128))
 207 +    target_flags |= MASK_LONG_DOUBLE_128;
 208 +#endif
 209  }
 210  \f
 211  /* Returns 1 if VALUE is a mask that contains full bytes of zero or ones.  */
 212 --- gcc/config/s390/s390.c.jj   2006-02-04 10:42:41.000000000 +0100
 213 +++ gcc/config/s390/s390.c      2006-02-04 12:36:09.000000000 +0100
 214 @@ -1415,6 +1415,11 @@ override_options (void)
 215      }
 216    else if (s390_stack_guard)
 217      error ("-mstack-guard implies use of -mstack-size");
 218 +
 219 +#ifdef TARGET_DEFAULT_LONG_DOUBLE_128
 220 +  if (!(target_flags_explicit & MASK_LONG_DOUBLE_128))
 221 +    target_flags |= MASK_LONG_DOUBLE_128;
 222 +#endif
 223  }
 224
 225  /* Map for smallest class containing reg regno.  */
 226 --- gcc/config/sparc/linux.h.jj 2006-02-04 10:42:41.000000000 +0100
 227 +++ gcc/config/sparc/linux.h    2006-02-04 12:39:31.000000000 +0100
 228 @@ -23,17 +23,19 @@ Boston, MA 02110-1301, USA.  */
 229  #define TARGET_OS_CPP_BUILTINS()               \
 230    do                                           \
 231      {                                          \
 232 -       builtin_define_std ("unix");            \
 233 -       builtin_define_std ("linux");           \
 234 -       builtin_define ("__gnu_linux__");       \
 235 -       builtin_assert ("system=linux");        \
 236 -       builtin_assert ("system=unix");         \
 237 -       builtin_assert ("system=posix");        \
 238 -       if (flag_pic)                           \
 239 -         {                                     \
 240 -               builtin_define ("__PIC__");     \
 241 -               builtin_define ("__pic__");     \
 242 -         }                                     \
 243 +      builtin_define_std ("unix");             \
 244 +      builtin_define_std ("linux");            \
 245 +      builtin_define ("__gnu_linux__");                \
 246 +      builtin_assert ("system=linux");         \
 247 +      builtin_assert ("system=unix");          \
 248 +      builtin_assert ("system=posix");         \
 249 +      if (flag_pic)                            \
 250 +       {                                       \
 251 +         builtin_define ("__PIC__");           \
 252 +         builtin_define ("__pic__");           \
 253 +       }                                       \
 254 +      if (TARGET_LONG_DOUBLE_128)              \
 255 +       builtin_define ("__LONG_DOUBLE_128__"); \
 256      }                                          \
 257    while (0)
 258
 259 @@ -100,8 +102,7 @@ Boston, MA 02110-1301, USA.  */
 260
 261  #undef CPP_SUBTARGET_SPEC
 262  #define CPP_SUBTARGET_SPEC \
 263 -"%{posix:-D_POSIX_SOURCE} \
 264 -%{pthread:-D_REENTRANT} %{mlong-double-128:-D__LONG_DOUBLE_128__}"
 265 +"%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
 266
 267  #undef LIB_SPEC
 268  #define LIB_SPEC \
 269 --- gcc/config/sparc/sparc.c.jj 2006-02-04 10:42:41.000000000 +0100
 270 +++ gcc/config/sparc/sparc.c    2006-02-04 12:36:09.000000000 +0100
 271 @@ -782,6 +790,11 @@ sparc_override_options (void)
 272        sparc_costs = &ultrasparc3_costs;
 273        break;
 274      };
 275 +
 276 +#ifdef TARGET_DEFAULT_LONG_DOUBLE_128
 277 +  if (!(target_flags_explicit & MASK_LONG_DOUBLE_128))
 278 +    target_flags |= MASK_LONG_DOUBLE_128;
 279 +#endif
 280  }
 281  \f
 282  #ifdef SUBTARGET_ATTRIBUTE_TABLE
 283 --- gcc/config/sparc/linux64.h.jj       2006-02-04 10:42:41.000000000 +0100
 284 +++ gcc/config/sparc/linux64.h  2006-02-04 12:39:31.000000000 +0100
 285 @@ -20,22 +20,24 @@ along with GCC; see the file COPYING.  I
 286  the Free Software Foundation, 51 Franklin Street, Fifth Floor,
 287  Boston, MA 02110-1301, USA.  */
 288
 289 -#define TARGET_OS_CPP_BUILTINS()               \
 290 -  do                                           \
 291 -    {                                          \
 292 -       builtin_define_std ("unix");            \
 293 -       builtin_define_std ("linux");           \
 294 -       builtin_define ("_LONGLONG");           \
 295 -       builtin_define ("__gnu_linux__");       \
 296 -       builtin_assert ("system=linux");        \
 297 -       builtin_assert ("system=unix");         \
 298 -       builtin_assert ("system=posix");        \
 299 -       if (flag_pic)                           \
 300 -         {                                     \
 301 -               builtin_define ("__PIC__");     \
 302 -               builtin_define ("__pic__");     \
 303 -         }                                     \
 304 -    }                                          \
 305 +#define TARGET_OS_CPP_BUILTINS()                       \
 306 +  do                                                   \
 307 +    {                                                  \
 308 +      builtin_define_std ("unix");                     \
 309 +      builtin_define_std ("linux");                    \
 310 +      builtin_define ("_LONGLONG");                    \
 311 +      builtin_define ("__gnu_linux__");                        \
 312 +      builtin_assert ("system=linux");                 \
 313 +      builtin_assert ("system=unix");                  \
 314 +      builtin_assert ("system=posix");                 \
 315 +      if (flag_pic)                                    \
 316 +       {                                               \
 317 +         builtin_define ("__PIC__");                   \
 318 +         builtin_define ("__pic__");                   \
 319 +       }                                               \
 320 +      if (TARGET_ARCH32 && TARGET_LONG_DOUBLE_128)     \
 321 +       builtin_define ("__LONG_DOUBLE_128__");         \
 322 +    }                                                  \
 323    while (0)
 324
 325  /* Don't assume anything about the header files.  */
 326 @@ -59,13 +61,6 @@ Boston, MA 02110-1301, USA.  */
 327  #undef ASM_CPU_DEFAULT_SPEC
 328  #define ASM_CPU_DEFAULT_SPEC "-Av9a"
 329
 330 -#ifdef SPARC_BI_ARCH
 331 -
 332 -#undef CPP_ARCH32_SPEC
 333 -#define CPP_ARCH32_SPEC "%{mlong-double-128:-D__LONG_DOUBLE_128__}"
 334 -
 335 -#endif
 336 -
 337  /* Provide a STARTFILE_SPEC appropriate for GNU/Linux.  Here we add
 338     the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
 339     provides part of the support for getting C++ file-scope static
 340 --- gcc/config.gcc.jj   2006-02-04 09:38:33.000000000 +0100
 341 +++ gcc/config.gcc      2006-02-05 22:00:25.000000000 +0100
 342 @@ -568,7 +568,7 @@ alpha*-*-unicosmk*)
 343  alpha*-*-linux*)
 344         tm_file="${tm_file} alpha/elf.h alpha/linux.h alpha/linux-elf.h"
 345         target_cpu_default="MASK_GAS"
 346 -       tmake_file="${tmake_file} alpha/t-crtfm alpha/t-alpha alpha/t-ieee"
 347 +       tmake_file="${tmake_file} alpha/t-crtfm alpha/t-alpha alpha/t-ieee alpha/t-linux"
 348         ;;
 349  alpha*-*-gnu*)
 350         target_cpu_default="MASK_GAS"
 351 @@ -2059,7 +2059,7 @@ sparc-*-elf*)
 352  sparc-*-linux*)                # SPARC's running GNU/Linux, libc6
 353         tm_file="${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sparc/linux.h"
 354         extra_options="${extra_options} sparc/long-double-switch.opt"
 355 -       tmake_file="${tmake_file} sparc/t-crtfm"
 356 +       tmake_file="${tmake_file} sparc/t-linux sparc/t-crtfm"
 357         ;;
 358  sparc-*-rtems*)
 359         tm_file="${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sparc/sp-elf.h sparc/rtemself.h rtems.h"
 360 @@ -2178,7 +2178,7 @@ sparc64-*-freebsd*|ultrasparc-*-freebsd*
 361  sparc64-*-linux*)              # 64-bit SPARC's running GNU/Linux
 362         tm_file="sparc/biarch64.h ${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sparc/linux64.h"
 363         extra_options="${extra_options} sparc/long-double-switch.opt"
 364 -       tmake_file="${tmake_file} sparc/t-linux64 sparc/t-crtfm"
 365 +       tmake_file="${tmake_file} sparc/t-linux sparc/t-linux64 sparc/t-crtfm"
 366         ;;
 367  sparc64-*-netbsd*)
 368         tm_file="sparc/biarch64.h ${tm_file}"
 369 --- gcc/config/alpha/libgcc-alpha-ldbl.ver.jj   2006-02-05 21:57:55.000000000 +0100
 370 +++ gcc/config/alpha/libgcc-alpha-ldbl.ver      2006-02-05 21:58:59.000000000 +0100
 371 @@ -0,0 +1,32 @@
 372 +%ifdef __LONG_DOUBLE_128__
 373 +
 374 +# long double 128 bit support in libgcc_s.so.1 is only available
 375 +# when configured with --with-long-double-128.  Make sure all the
 376 +# symbols are available at @@GCC_LDBL_* versions to make it clear
 377 +# there is a configurable symbol set.
 378 +
 379 +%exclude {
 380 +  __fixtfdi
 381 +  __fixunstfdi
 382 +  __floatditf
 383 +
 384 +  __divtc3
 385 +  __multc3
 386 +  __powitf2
 387 +}
 388 +
 389 +%inherit GCC_LDBL_3.0 GCC_3.0
 390 +GCC_LDBL_3.0 {
 391 +  __fixtfdi
 392 +  __fixunstfdi
 393 +  __floatditf
 394 +}
 395 +
 396 +%inherit GCC_LDBL_4.0.0 GCC_4.0.0
 397 +GCC_LDBL_4.0.0 {
 398 +  __divtc3
 399 +  __multc3
 400 +  __powitf2
 401 +}
 402 +
 403 +%endif
 404 --- gcc/config/alpha/t-linux.jj 2006-02-05 21:57:01.000000000 +0100
 405 +++ gcc/config/alpha/t-linux    2006-02-05 21:59:40.000000000 +0100
 406 @@ -0,0 +1 @@
 407 +SHLIB_MAPFILES += $(srcdir)/config/alpha/libgcc-alpha-ldbl.ver
 408 --- gcc/config/sparc/t-linux64.jj       2006-01-28 00:43:01.000000000 +0100
 409 +++ gcc/config/sparc/t-linux64  2006-02-05 20:40:45.000000000 +0100
 410 @@ -8,12 +8,6 @@ INSTALL_LIBGCC = install-multilib
 411  EXTRA_MULTILIB_PARTS=crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o \
 412         crtfastmath.o
 413
 414 -# Override t-slibgcc-elf-ver to export some libgcc symbols with
 415 -# the symbol versions that glibc used.
 416 -# Avoid the t-linux version file.
 417 -SHLIB_MAPFILES = $(srcdir)/libgcc-std.ver \
 418 -                $(srcdir)/config/sparc/libgcc-sparc-glibc.ver
 419 -
 420  CRTSTUFF_T_CFLAGS = `if test x$$($(GCC_FOR_TARGET) $(MULTILIB_CFLAGS) \
 421                                  -print-multi-os-directory) \
 422                         = x../lib64; then echo -mcmodel=medany; fi`
 423 --- gcc/config/sparc/libgcc-sparc-glibc.ver.jj  2006-01-28 00:43:01.000000000 +0100
 424 +++ gcc/config/sparc/libgcc-sparc-glibc.ver     2006-02-05 21:03:43.000000000 +0100
 425 @@ -26,3 +26,36 @@ GLIBC_VER {
 426    __frame_state_for
 427    __register_frame_info_table
 428  }
 429 +
 430 +%if !defined (__arch64__) && defined (__LONG_DOUBLE_128__)
 431 +
 432 +# long double 128 bit support from 32-bit libgcc_s.so.1 is only available
 433 +# when configured with --with-long-double-128.  Make sure all the
 434 +# symbols are available at @@GCC_LDBL_* versions to make it clear
 435 +# there is a configurable symbol set.
 436 +
 437 +%exclude {
 438 +  __fixtfdi
 439 +  __fixunstfdi
 440 +  __floatditf
 441 +
 442 +  __divtc3
 443 +  __multc3
 444 +  __powitf2
 445 +}
 446 +
 447 +%inherit GCC_LDBL_3.0 GCC_3.0
 448 +GCC_LDBL_3.0 {
 449 +  __fixtfdi
 450 +  __fixunstfdi
 451 +  __floatditf
 452 +}
 453 +
 454 +%inherit GCC_LDBL_4.0.0 GCC_4.0.0
 455 +GCC_LDBL_4.0.0 {
 456 +  __divtc3
 457 +  __multc3
 458 +  __powitf2
 459 +}
 460 +
 461 +%endif
 462 --- gcc/config/sparc/t-linux.jj 2006-02-05 20:40:20.000000000 +0100
 463 +++ gcc/config/sparc/t-linux    2006-02-05 20:40:55.000000000 +0100
 464 @@ -0,0 +1,5 @@
 465 +# Override t-slibgcc-elf-ver to export some libgcc symbols with
 466 +# the symbol versions that glibc used.
 467 +# Avoid the t-linux version file.
 468 +SHLIB_MAPFILES = $(srcdir)/libgcc-std.ver \
 469 +                $(srcdir)/config/sparc/libgcc-sparc-glibc.ver
 470 --- gcc/doc/install.texi.jj     2006-02-02 16:39:46.000000000 +0100
 471 +++ gcc/doc/install.texi        2006-02-10 15:33:53.000000000 +0100
 472 @@ -1224,6 +1224,14 @@ error message.
 473  All support for systems which have been obsoleted in one release of GCC
 474  is removed entirely in the next major release, unless someone steps
 475  forward to maintain the port.
 476 +
 477 +@item --with-long-double-128
 478 +Specify if @code{long double} type should be 128-bit by default on selected
 479 +GNU/Linux architectures.  If using @code{--without-long-double-128},
 480 +@code{long double} will be by default 64-bit, the same as @code{double} type.
 481 +When neither of these configure options are used, the default will be
 482 +128-bit @code{long double} when built against GNU C Library 2.4 and later,
 483 +64-bit @code{long double} otherwise.
 484  @end table
 485
 486  @subheading Cross-Compiler-Specific Options