gcc/configure.ac

   1 # configure.ac for GCC
   2 # Process this file with autoconf to generate a configuration script.
   3
   4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
   5 # Free Software Foundation, Inc.
   6
   7 #This file is part of GCC.
   8
   9 #GCC is free software; you can redistribute it and/or modify it under
  10 #the terms of the GNU General Public License as published by the Free
  11 #Software Foundation; either version 2, or (at your option) any later
  12 #version.
  13
  14 #GCC is distributed in the hope that it will be useful, but WITHOUT
  15 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  16 #FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  17 #for more details.
  18
  19 #You should have received a copy of the GNU General Public License
  20 #along with GCC; see the file COPYING.  If not, write to the Free
  21 #Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
  22 #02110-1301, USA.
  23
  24 # --------------------------------
  25 # Initialization and sanity checks
  26 # --------------------------------
  27
  28 AC_PREREQ(2.59)
  29 AC_INIT
  30 AC_CONFIG_SRCDIR(tree.c)
  31 AC_CONFIG_HEADER(auto-host.h:config.in)
  32
  33 gcc_version=`cat $srcdir/BASE-VER`
  34
  35 # Determine the host, build, and target systems
  36 AC_CANONICAL_BUILD
  37 AC_CANONICAL_HOST
  38 AC_CANONICAL_TARGET
  39
  40 # Determine the noncanonical target name, for directory use.
  41 ACX_NONCANONICAL_TARGET
  42
  43 # Determine the target- and build-specific subdirectories
  44 GCC_TOPLEV_SUBDIRS
  45
  46 # Set program_transform_name
  47 AC_ARG_PROGRAM
  48
  49 # Check for bogus environment variables.
  50 # Test if LIBRARY_PATH contains the notation for the current directory
  51 # since this would lead to problems installing/building glibc.
  52 # LIBRARY_PATH contains the current directory if one of the following
  53 # is true:
  54 # - one of the terminals (":" and ";") is the first or last sign
  55 # - two terminals occur directly after each other
  56 # - the path contains an element with a dot in it
  57 AC_MSG_CHECKING(LIBRARY_PATH variable)
  58 changequote(,)dnl
  59 case ${LIBRARY_PATH} in
  60   [:\;]* | *[:\;] | *[:\;][:\;]* |  *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
  61     library_path_setting="contains current directory"
  62     ;;
  63   *)
  64     library_path_setting="ok"
  65     ;;
  66 esac
  67 changequote([,])dnl
  68 AC_MSG_RESULT($library_path_setting)
  69 if test "$library_path_setting" != "ok"; then
  70 AC_MSG_ERROR([
  71 *** LIBRARY_PATH shouldn't contain the current directory when
  72 *** building gcc. Please change the environment variable
  73 *** and run configure again.])
  74 fi
  75
  76 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
  77 # since this would lead to problems installing/building glibc.
  78 # GCC_EXEC_PREFIX contains the current directory if one of the following
  79 # is true:
  80 # - one of the terminals (":" and ";") is the first or last sign
  81 # - two terminals occur directly after each other
  82 # - the path contains an element with a dot in it
  83 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
  84 changequote(,)dnl
  85 case ${GCC_EXEC_PREFIX} in
  86   [:\;]* | *[:\;] | *[:\;][:\;]* |  *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
  87     gcc_exec_prefix_setting="contains current directory"
  88     ;;
  89   *)
  90     gcc_exec_prefix_setting="ok"
  91     ;;
  92 esac
  93 changequote([,])dnl
  94 AC_MSG_RESULT($gcc_exec_prefix_setting)
  95 if test "$gcc_exec_prefix_setting" != "ok"; then
  96 AC_MSG_ERROR([
  97 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
  98 *** building gcc. Please change the environment variable
  99 *** and run configure again.])
 100 fi
 101
 102 # -----------
 103 # Directories
 104 # -----------
 105
 106 # Specify the local prefix
 107 local_prefix=
 108 AC_ARG_WITH(local-prefix,
 109 [  --with-local-prefix=DIR specifies directory to put local include],
 110 [case "${withval}" in
 111 yes)    AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
 112 no)     ;;
 113 *)      local_prefix=$with_local_prefix ;;
 114 esac])
 115
 116 # Default local prefix if it is empty
 117 if test x$local_prefix = x; then
 118         local_prefix=/usr/local
 119 fi
 120
 121 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
 122 # passed in by the toplevel make and thus we'd get different behavior
 123 # depending on where we built the sources.
 124 gcc_gxx_include_dir=
 125 # Specify the g++ header file directory
 126 AC_ARG_WITH(gxx-include-dir,
 127 [  --with-gxx-include-dir=DIR
 128                           specifies directory to put g++ header files],
 129 [case "${withval}" in
 130 yes)    AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
 131 no)     ;;
 132 *)      gcc_gxx_include_dir=$with_gxx_include_dir ;;
 133 esac])
 134
 135 if test x${gcc_gxx_include_dir} = x; then
 136   if test x${enable_version_specific_runtime_libs} = xyes; then
 137     gcc_gxx_include_dir='${libsubdir}/include/c++'
 138   else
 139     libstdcxx_incdir='c++/$(version)'
 140 changequote(<<, >>)dnl
 141     gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
 142 changequote([, ])dnl
 143   fi
 144 fi
 145
 146 AC_ARG_WITH(cpp_install_dir,
 147 [  --with-cpp-install-dir=DIR
 148                           install the user visible C preprocessor in DIR
 149                           (relative to PREFIX) as well as PREFIX/bin],
 150 [if test x$withval = xyes; then
 151   AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
 152 elif test x$withval != xno; then
 153   cpp_install_dir=$withval
 154 fi])
 155
 156 # We would like to our source tree to be readonly.  However when releases or
 157 # pre-releases are generated, the flex/bison generated files as well as the
 158 # various formats of manuals need to be included along with the rest of the
 159 # sources.  Therefore we have --enable-generated-files-in-srcdir to do
 160 # just that.
 161
 162 AC_MSG_CHECKING([whether to place generated files in the source directory])
 163   dnl generated-files-in-srcdir is disabled by default
 164   AC_ARG_ENABLE(generated-files-in-srcdir,
 165 [  --enable-generated-files-in-srcdir
 166                           put copies of generated files in source dir
 167                           intended for creating source tarballs for users
 168                           without texinfo bison or flex.],
 169       generated_files_in_srcdir=$enableval,
 170       generated_files_in_srcdir=no)
 171
 172 AC_MSG_RESULT($generated_files_in_srcdir)
 173
 174 if test "$generated_files_in_srcdir" = "yes"; then
 175   GENINSRC=''
 176 else
 177   GENINSRC='#'
 178 fi
 179 AC_SUBST(GENINSRC)
 180
 181 # -------------------
 182 # Find default linker
 183 # -------------------
 184
 185 # With GNU ld
 186 AC_ARG_WITH(gnu-ld,
 187 [  --with-gnu-ld           arrange to work with GNU ld.],
 188 gnu_ld_flag="$with_gnu_ld",
 189 gnu_ld_flag=no)
 190
 191 # With pre-defined ld
 192 AC_ARG_WITH(ld,
 193 [  --with-ld               arrange to use the specified ld (full pathname)],
 194 DEFAULT_LINKER="$with_ld")
 195 if test x"${DEFAULT_LINKER+set}" = x"set"; then
 196   if test ! -x "$DEFAULT_LINKER"; then
 197     AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
 198   elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
 199     gnu_ld_flag=yes
 200   fi
 201   AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
 202         [Define to enable the use of a default linker.])
 203 fi
 204
 205 AC_MSG_CHECKING([whether a default linker was specified])
 206 if test x"${DEFAULT_LINKER+set}" = x"set"; then
 207   if test x"$gnu_ld_flag" = x"no"; then
 208     AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
 209   else
 210     AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
 211   fi
 212 else
 213   AC_MSG_RESULT(no)
 214 fi
 215
 216 # With demangler in GNU ld
 217 AC_ARG_WITH(demangler-in-ld,
 218 [  --with-demangler-in-ld  try to use demangler in GNU ld.],
 219 demangler_in_ld="$with_demangler_in_ld",
 220 demangler_in_ld=no)
 221
 222 # ----------------------
 223 # Find default assembler
 224 # ----------------------
 225
 226 # With GNU as
 227 AC_ARG_WITH(gnu-as,
 228 [  --with-gnu-as           arrange to work with GNU as],
 229 gas_flag="$with_gnu_as",
 230 gas_flag=no)
 231
 232 AC_ARG_WITH(as,
 233 [  --with-as               arrange to use the specified as (full pathname)],
 234 DEFAULT_ASSEMBLER="$with_as")
 235 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
 236   if test ! -x "$DEFAULT_ASSEMBLER"; then
 237     AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
 238   elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
 239     gas_flag=yes
 240   fi
 241   AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
 242         [Define to enable the use of a default assembler.])
 243 fi
 244
 245 AC_MSG_CHECKING([whether a default assembler was specified])
 246 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
 247   if test x"$gas_flag" = x"no"; then
 248     AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
 249   else
 250     AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
 251   fi
 252 else
 253   AC_MSG_RESULT(no)
 254 fi
 255
 256 # ---------------
 257 # Find C compiler
 258 # ---------------
 259
 260 # If a non-executable a.out is present (e.g. created by GNU as above even if
 261 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
 262 # file, even when creating an executable, so an execution test fails.
 263 # Remove possible default executable files to avoid this.
 264 #
 265 # FIXME: This really belongs into AC_PROG_CC and can be removed once
 266 # Autoconf includes it.
 267 rm -f a.out a.exe b.out
 268
 269 # Find the native compiler
 270 AC_PROG_CC
 271 AM_PROG_CC_C_O
 272 # autoconf is lame and doesn't give us any substitution variable for this.
 273 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
 274   NO_MINUS_C_MINUS_O=yes
 275 else
 276   OUTPUT_OPTION='-o $@'
 277 fi
 278 AC_SUBST(NO_MINUS_C_MINUS_O)
 279 AC_SUBST(OUTPUT_OPTION)
 280
 281 # -------------------------
 282 # Check C compiler features
 283 # -------------------------
 284
 285 AC_PROG_CPP
 286 AC_C_INLINE
 287
 288 # sizeof(char) is 1 by definition.
 289 AC_CHECK_SIZEOF(void *)
 290 AC_CHECK_SIZEOF(short)
 291 AC_CHECK_SIZEOF(int)
 292 AC_CHECK_SIZEOF(long)
 293 AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
 294 AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)])
 295
 296 # ---------------------
 297 # Warnings and checking
 298 # ---------------------
 299
 300 # Check $CC warning features (if it's GCC).
 301 # We want to use -pedantic, but we don't want warnings about
 302 # * 'long long'
 303 # * variadic macros
 304 # So, we only use -pedantic if we can disable those warnings.
 305
 306 AC_CACHE_CHECK(
 307   [whether ${CC} accepts -Wno-long-long],
 308   [ac_cv_prog_cc_w_no_long_long],
 309   [save_CFLAGS="$CFLAGS"
 310   CFLAGS="-Wno-long-long"
 311   AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
 312                     [ac_cv_prog_cc_w_no_long_long=yes],
 313                     [ac_cv_prog_cc_w_no_long_long=no])
 314   CFLAGS="$save_CFLAGS"
 315   ])
 316
 317 AC_CACHE_CHECK(
 318   [whether ${CC} accepts -Wno-variadic-macros],
 319   [ac_cv_prog_cc_w_no_variadic_macros],
 320   [save_CFLAGS="$CFLAGS"
 321   CFLAGS="-Wno-variadic-macros"
 322   AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
 323                     [ac_cv_prog_cc_w_no_variadic_macros=yes],
 324                     [ac_cv_prog_cc_w_no_variadic_macros=no])
 325   CFLAGS="$save_CFLAGS"
 326   ])
 327
 328 strict1_warn=
 329 if test $ac_cv_prog_cc_w_no_long_long = yes \
 330    && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then
 331   strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros"
 332 fi
 333
 334 # Add -Wold-style-definition if it's accepted
 335 AC_CACHE_CHECK(
 336   [whether ${CC} accepts -Wold-style-definition],
 337   [ac_cv_prog_cc_w_old_style_definition],
 338   [save_CFLAGS="$CFLAGS"
 339   CFLAGS="-Wold-style-definition"
 340   AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
 341                     [ac_cv_prog_cc_w_old_style_definition=yes],
 342                     [ac_cv_prog_cc_w_old_style_definition=no])
 343   CFLAGS="$save_CFLAGS"
 344   ])
 345 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
 346   strict1_warn="${strict1_warn} -Wold-style-definition"
 347 fi
 348
 349 # Add -Wmissing-format-attribute if it's accepted
 350 AC_CACHE_CHECK(
 351   [whether ${CC} accepts -Wmissing-format-attribute],
 352   [ac_cv_prog_cc_w_missing_format_attribute],
 353   [save_CFLAGS="$CFLAGS"
 354   CFLAGS="-Wmissing-format-attribute"
 355   AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
 356                     [ac_cv_prog_cc_w_missing_format_attribute=yes],
 357                     [ac_cv_prog_cc_w_missing_format_attribute=no])
 358   CFLAGS="$save_CFLAGS"
 359   ])
 360 if test $ac_cv_prog_cc_w_missing_format_attribute = yes ; then
 361   strict1_warn="${strict1_warn} -Wmissing-format-attribute"
 362 fi
 363
 364 # Enable -Werror, period.
 365 AC_ARG_ENABLE(werror_always,
 366 [  --enable-werror-always         enable -Werror always], [],
 367 [enable_werror_always=no])
 368 if test x${enable_werror_always} = xyes ; then
 369   strict1_warn="${strict1_warn} -Werror"
 370   WERROR=-Werror
 371 fi
 372
 373 AC_SUBST(strict1_warn)
 374
 375 # If the native compiler is GCC, we can enable warnings even in stage1.
 376 # That's useful for people building cross-compilers, or just running a
 377 # quick `make'.
 378 warn_cflags=
 379 if test "x$GCC" = "xyes"; then
 380   warn_cflags='$(GCC_WARN_CFLAGS)'
 381 fi
 382 AC_SUBST(warn_cflags)
 383
 384 # Enable -Werror in bootstrap stage2 and later.
 385 is_release=
 386 if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
 387   is_release=yes
 388 fi
 389 AC_ARG_ENABLE(werror,
 390 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
 391 [if test x$is_release = x ; then
 392   # Default to "yes" on development branches.
 393   enable_werror=yes
 394 else
 395   # Default to "no" on release branches.
 396   enable_werror=no
 397 fi])
 398 if test x$enable_werror = xyes ; then
 399   WERROR=-Werror
 400 fi
 401 AC_SUBST(WERROR)
 402
 403 # Enable expensive internal checks
 404 AC_ARG_ENABLE(checking,
 405 [  --enable-checking[=LIST]
 406                           enable expensive run-time checks.  With LIST,
 407                           enable only specific categories of checks.
 408                           Categories are: yes,no,all,none,release.
 409                           Flags are: assert,fold,gc,gcac,misc,
 410                           rtlflag,rtl,runtime,tree,valgrind.],
 411 [ac_checking_flags="${enableval}"],[
 412 # Determine the default checks.
 413 if test x$is_release = x ; then
 414   ac_checking_flags=yes
 415 else
 416   ac_checking_flags=release
 417 fi])
 418 ac_assert_checking=1
 419 ac_checking=
 420 ac_fold_checking=
 421 ac_gc_checking=
 422 ac_gc_always_collect=
 423 ac_rtl_checking=
 424 ac_rtlflag_checking=
 425 ac_runtime_checking=1
 426 ac_tree_checking=
 427 ac_valgrind_checking=
 428 IFS="${IFS=     }"; ac_save_IFS="$IFS"; IFS="$IFS,"
 429 for check in $ac_checking_flags
 430 do
 431         case $check in
 432         # these set all the flags to specific states
 433         yes)            ac_assert_checking=1 ; ac_checking=1 ;
 434                         ac_fold_checking= ; ac_gc_checking=1 ;
 435                         ac_gc_always_collect= ; ac_rtl_checking= ;
 436                         ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
 437                         ac_tree_checking=1 ; ac_valgrind_checking= ;;
 438         no|none)        ac_assert_checking= ; ac_checking= ;
 439                         ac_fold_checking= ; ac_gc_checking= ;
 440                         ac_gc_always_collect= ; ac_rtl_checking= ;
 441                         ac_rtlflag_checking= ; ac_runtime_checking= ;
 442                         ac_tree_checking= ; ac_valgrind_checking= ;;
 443         all)            ac_assert_checking=1 ; ac_checking=1 ;
 444                         ac_fold_checking=1 ; ac_gc_checking=1 ;
 445                         ac_gc_always_collect=1 ; ac_rtl_checking=1 ;
 446                         ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
 447                         ac_tree_checking=1 ; ac_valgrind_checking= ;;
 448         release)        ac_assert_checking=1 ; ac_checking= ;
 449                         ac_fold_checking= ; ac_gc_checking= ;
 450                         ac_gc_always_collect= ; ac_rtl_checking= ;
 451                         ac_rtlflag_checking= ; ac_runtime_checking=1 ;
 452                         ac_tree_checking= ; ac_valgrind_checking= ;;
 453         # these enable particular checks
 454         assert)         ac_assert_checking=1 ;;
 455         fold)           ac_fold_checking=1 ;;
 456         gc)             ac_gc_checking=1 ;;
 457         gcac)           ac_gc_always_collect=1 ;;
 458         misc)           ac_checking=1 ;;
 459         rtl)            ac_rtl_checking=1 ;;
 460         rtlflag)        ac_rtlflag_checking=1 ;;
 461         runtime)        ac_runtime_checking=1 ;;
 462         tree)           ac_tree_checking=1 ;;
 463         valgrind)       ac_valgrind_checking=1 ;;
 464         *)      AC_MSG_ERROR(unknown check category $check) ;;
 465         esac
 466 done
 467 IFS="$ac_save_IFS"
 468
 469 nocommon_flag=""
 470 if test x$ac_checking != x ; then
 471   AC_DEFINE(ENABLE_CHECKING, 1,
 472 [Define if you want more run-time sanity checks.  This one gets a grab
 473    bag of miscellaneous but relatively cheap checks.])
 474   nocommon_flag=-fno-common
 475 fi
 476 AC_SUBST(nocommon_flag)
 477 if test x$ac_assert_checking != x ; then
 478   AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
 479 [Define if you want assertions enabled.  This is a cheap check.])
 480 fi
 481 GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING)
 482 if test x$ac_runtime_checking != x ; then
 483   AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
 484 [Define if you want runtime assertions enabled.  This is a cheap check.])
 485 fi
 486 if test x$ac_tree_checking != x ; then
 487   AC_DEFINE(ENABLE_TREE_CHECKING, 1,
 488 [Define if you want all operations on trees (the basic data
 489    structure of the front ends) to be checked for dynamic type safety
 490    at runtime.  This is moderately expensive.  The tree browser debugging
 491    routines will also be enabled by this option.
 492    ])
 493   TREEBROWSER=tree-browser.o
 494 fi
 495 AC_SUBST(TREEBROWSER)
 496 if test x$ac_rtl_checking != x ; then
 497   AC_DEFINE(ENABLE_RTL_CHECKING, 1,
 498 [Define if you want all operations on RTL (the basic data structure
 499    of the optimizer and back end) to be checked for dynamic type safety
 500    at runtime.  This is quite expensive.])
 501 fi
 502 if test x$ac_rtlflag_checking != x ; then
 503   AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
 504 [Define if you want RTL flag accesses to be checked against the RTL
 505    codes that are supported for each access macro.  This is relatively
 506    cheap.])
 507 fi
 508 if test x$ac_gc_checking != x ; then
 509   AC_DEFINE(ENABLE_GC_CHECKING, 1,
 510 [Define if you want the garbage collector to do object poisoning and
 511    other memory allocation checks.  This is quite expensive.])
 512 fi
 513 if test x$ac_gc_always_collect != x ; then
 514   AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
 515 [Define if you want the garbage collector to operate in maximally
 516    paranoid mode, validating the entire heap and collecting garbage at
 517    every opportunity.  This is extremely expensive.])
 518 fi
 519 if test x$ac_fold_checking != x ; then
 520   AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
 521 [Define if you want fold checked that it never destructs its argument.
 522    This is quite expensive.])
 523 fi
 524 valgrind_path_defines=
 525 valgrind_command=
 526
 527 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
 528 dnl # an if statement.  This was the source of very frustrating bugs
 529 dnl # in converting to autoconf 2.5x!
 530 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
 531
 532 if test x$ac_valgrind_checking != x ; then
 533   # It is certainly possible that there's valgrind but no valgrind.h.
 534   # GCC relies on making annotations so we must have both.
 535   AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
 536   AC_PREPROC_IFELSE([AC_LANG_SOURCE(
 537     [[#include <valgrind/memcheck.h>
 538 #ifndef VALGRIND_DISCARD
 539 #error VALGRIND_DISCARD not defined
 540 #endif]])],
 541   [gcc_cv_header_valgrind_memcheck_h=yes],
 542   [gcc_cv_header_valgrind_memcheck_h=no])
 543   AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
 544   AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
 545   AC_PREPROC_IFELSE([AC_LANG_SOURCE(
 546     [[#include <memcheck.h>
 547 #ifndef VALGRIND_DISCARD
 548 #error VALGRIND_DISCARD not defined
 549 #endif]])],
 550   [gcc_cv_header_memcheck_h=yes],
 551   [gcc_cv_header_memcheck_h=no])
 552   AC_MSG_RESULT($gcc_cv_header_memcheck_h)
 553   AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
 554         [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
 555   if test "x$valgrind_path" = "x" \
 556     || (test $have_valgrind_h = no \
 557         && test $gcc_cv_header_memcheck_h = no \
 558         && test $gcc_cv_header_valgrind_memcheck_h = no); then
 559         AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
 560   fi
 561   valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
 562   valgrind_command="$valgrind_path -q"
 563   AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
 564 [Define if you want to run subprograms and generated programs
 565    through valgrind (a memory checker).  This is extremely expensive.])
 566   if test $gcc_cv_header_valgrind_memcheck_h = yes; then
 567     AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
 568         [Define if valgrind's valgrind/memcheck.h header is installed.])
 569   fi
 570   if test $gcc_cv_header_memcheck_h = yes; then
 571     AC_DEFINE(HAVE_MEMCHECK_H, 1,
 572         [Define if valgrind's memcheck.h header is installed.])
 573   fi
 574 fi
 575 AC_SUBST(valgrind_path_defines)
 576 AC_SUBST(valgrind_command)
 577
 578 AC_ARG_ENABLE(mapped-location,
 579 [  --enable-mapped-location   location_t is fileline integer cookie],,
 580 enable_mapped_location=no)
 581
 582 if test "$enable_mapped_location" = yes ; then
 583   AC_DEFINE(USE_MAPPED_LOCATION, 1,
 584 [Define if location_t is fileline integer cookie.])
 585 fi
 586
 587 # Enable code coverage collection
 588 AC_ARG_ENABLE(coverage,
 589 [  --enable-coverage[=LEVEL]
 590                           enable compiler's code coverage collection.
 591                           Use to measure compiler performance and locate
 592                           unused parts of the compiler. With LEVEL, specify
 593                           optimization. Values are opt, noopt,
 594                           default is noopt],
 595 [case "${enableval}" in
 596   yes|noopt)
 597     coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
 598     ;;
 599   opt)
 600     coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
 601     ;;
 602   no)
 603     # a.k.a. --disable-coverage
 604     coverage_flags=""
 605     ;;
 606   *)
 607     AC_MSG_ERROR(unknown coverage setting $enableval)
 608     ;;
 609 esac],
 610 [coverage_flags=""])
 611 AC_SUBST(coverage_flags)
 612
 613 AC_ARG_ENABLE(gather-detailed-mem-stats,
 614 [  --enable-gather-detailed-mem-stats         enable detailed memory allocation stats gathering], [],
 615 [enable_gather_detailed_mem_stats=no])
 616 if test x$enable_gather_detailed_mem_stats = xyes ; then
 617   AC_DEFINE(GATHER_STATISTICS, 1,
 618         [Define to enable detailed memory allocation stats gathering.])
 619 fi
 620
 621 # -------------------------------
 622 # Miscenalleous configure options
 623 # -------------------------------
 624
 625 # With stabs
 626 AC_ARG_WITH(stabs,
 627 [  --with-stabs            arrange to use stabs instead of host debug format],
 628 stabs="$with_stabs",
 629 stabs=no)
 630
 631 # Determine whether or not multilibs are enabled.
 632 AC_ARG_ENABLE(multilib,
 633 [  --enable-multilib       enable library support for multiple ABIs],
 634 [], [enable_multilib=yes])
 635 AC_SUBST(enable_multilib)
 636
 637 # Enable __cxa_atexit for C++.
 638 AC_ARG_ENABLE(__cxa_atexit,
 639 [  --enable-__cxa_atexit   enable __cxa_atexit for C++],
 640 [], [])
 641
 642 # Enable threads
 643 # Pass with no value to take the default
 644 # Pass with a value to specify a thread package
 645 AC_ARG_ENABLE(threads,
 646 [  --enable-threads        enable thread usage for target GCC
 647   --enable-threads=LIB    use LIB thread package for target GCC],,
 648 [enable_threads=''])
 649
 650 AC_ARG_ENABLE(objc-gc,
 651 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
 652                           the GNU Objective-C runtime],
 653 if test x$enable_objc_gc = xno; then
 654         objc_boehm_gc=''
 655 else
 656         objc_boehm_gc=1
 657 fi,
 658 objc_boehm_gc='')
 659
 660 AC_ARG_WITH(dwarf2,
 661 [  --with-dwarf2           force the default debug format to be DWARF 2],
 662 dwarf2="$with_dwarf2",
 663 dwarf2=no)
 664
 665 AC_ARG_ENABLE(shared,
 666 [  --disable-shared        don't provide a shared libgcc],
 667 [
 668   case $enable_shared in
 669   yes | no) ;;
 670   *)
 671     enable_shared=no
 672     IFS="${IFS=         }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
 673     for pkg in $enableval; do
 674       if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
 675         enable_shared=yes
 676       fi
 677     done
 678     IFS="$ac_save_ifs"
 679     ;;
 680   esac
 681 ], [enable_shared=yes])
 682 AC_SUBST(enable_shared)
 683
 684 AC_ARG_WITH(build-sysroot,
 685   [  --with-build-sysroot=sysroot
 686                           use sysroot as the system root during the build])
 687
 688 AC_ARG_WITH(sysroot,
 689 [  --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
 690 [
 691  case ${with_sysroot} in
 692  yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
 693  *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
 694  esac
 695
 696  TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
 697  CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
 698
 699  if test "x$exec_prefix" = xNONE; then
 700   if test "x$prefix" = xNONE; then
 701    test_prefix=/usr/local
 702   else
 703    test_prefix=$prefix
 704   fi
 705  else
 706   test_prefix=$exec_prefix
 707  fi
 708  case ${TARGET_SYSTEM_ROOT} in
 709  "${test_prefix}"|"${test_prefix}/"*|\
 710  '${exec_prefix}'|'${exec_prefix}/'*)
 711    t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
 712    TARGET_SYSTEM_ROOT_DEFINE="$t"
 713    ;;
 714  esac
 715 ], [
 716  TARGET_SYSTEM_ROOT=
 717  TARGET_SYSTEM_ROOT_DEFINE=
 718  CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
 719 ])
 720 AC_SUBST(TARGET_SYSTEM_ROOT)
 721 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
 722 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
 723
 724 # Build with intermodule optimisations
 725 AC_ARG_ENABLE(intermodule,
 726 [  --enable-intermodule    build the compiler in one step],
 727 [case ${enable_intermodule} in
 728   yes) onestep="-onestep";;
 729   *) onestep="";;
 730 esac],
 731 [onestep=""])
 732 AC_SUBST(onestep)
 733
 734 # Sanity check enable_languages in case someone does not run the toplevel
 735 # configure # script.
 736 AC_ARG_ENABLE(languages,
 737 [  --enable-languages=LIST specify which front-ends to build],
 738 [case ,${enable_languages}, in
 739        ,,|,yes,)
 740                 # go safe -- we cannot be much sure without the toplevel
 741                 # configure's
 742                 # analysis of which target libs are present and usable
 743                 enable_languages=c
 744                 ;;
 745          *,all,*)
 746                 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
 747                 ;;
 748         *,c,*)
 749                 ;;
 750         *)
 751                 enable_languages=c,${enable_languages}
 752                 ;;
 753 esac],
 754 [enable_languages=c])
 755
 756 subdirs=
 757 for lang in ${srcdir}/*/config-lang.in
 758 do
 759         case $lang in
 760         # The odd quoting in the next line works around
 761         # an apparent bug in bash 1.12 on linux.
 762 changequote(,)dnl
 763         ${srcdir}/[*]/config-lang.in) ;;
 764         *)
 765           lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^   ]*\).*$,\1,p' $lang`
 766           if test "x$lang_alias" = x
 767           then
 768                 echo "$lang doesn't set \$language." 1>&2
 769                 exit 1
 770           fi
 771           case ",$enable_languages," in
 772           *,$lang_alias,*)
 773             subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
 774           esac
 775           ;;
 776 changequote([,])dnl
 777         esac
 778 done
 779
 780
 781 # -------------------------
 782 # Checks for other programs
 783 # -------------------------
 784
 785 AC_PROG_MAKE_SET
 786
 787 # Find some useful tools
 788 AC_PROG_AWK
 789 # We need awk to create options.c and options.h.
 790 # Bail out if it's missing.
 791 case ${AWK} in
 792   "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
 793 esac
 794
 795 gcc_AC_PROG_LN_S
 796 ACX_PROG_LN($LN_S)
 797 AC_PROG_RANLIB
 798 case "${host}" in
 799 *-*-darwin*)
 800   # By default, the Darwin ranlib will not treat common symbols as
 801   # definitions when  building the archive table of contents.  Other
 802   # ranlibs do that; pass an option to the Darwin ranlib that makes
 803   # it behave similarly.
 804   ranlib_flags="-c"
 805   ;;
 806 *)
 807   ranlib_flags=""
 808 esac
 809 AC_SUBST(ranlib_flags)
 810
 811 gcc_AC_PROG_INSTALL
 812
 813 # See if cmp has --ignore-initial.
 814 gcc_AC_PROG_CMP_IGNORE_INITIAL
 815
 816 # See if we have the mktemp command.
 817 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
 818
 819 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
 820
 821 # See if makeinfo has been installed and is modern enough
 822 # that we can use it.
 823 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
 824   [GNU texinfo.* \([0-9][0-9.]*\)],
 825   [4.[2-9]*])
 826 if test $gcc_cv_prog_makeinfo_modern = no; then
 827   MAKEINFO="$MISSING makeinfo"
 828   AC_MSG_WARN([
 829 *** Makeinfo is missing or too old.
 830 *** Info documentation will not be built.])
 831   BUILD_INFO=
 832 else
 833   BUILD_INFO=info
 834 fi
 835 AC_SUBST(BUILD_INFO)
 836
 837 # Is pod2man recent enough to regenerate manpages?
 838 AC_MSG_CHECKING([for recent Pod::Man])
 839 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
 840   AC_MSG_RESULT(yes)
 841   GENERATED_MANPAGES=generated-manpages
 842 else
 843   AC_MSG_RESULT(no)
 844   GENERATED_MANPAGES=
 845 fi
 846 AC_SUBST(GENERATED_MANPAGES)
 847
 848 # How about lex?
 849 dnl Don't use AC_PROG_LEX; we insist on flex.
 850 dnl LEXLIB is not useful in gcc.
 851 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
 852
 853 # Bison?
 854 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
 855
 856 # Binutils are not build modules, unlike bison/flex/makeinfo.  So we
 857 # check for build == host before using them.
 858
 859 # NM
 860 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
 861   && test -d ../binutils ; then
 862   NM='$(objdir)/../binutils/nm-new'
 863 else
 864   AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
 865 fi
 866
 867 # AR
 868 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
 869   && test -d ../binutils ; then
 870   AR='$(objdir)/../binutils/ar'
 871 else
 872   AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
 873 fi
 874
 875
 876 # --------------------
 877 # Checks for C headers
 878 # --------------------
 879
 880 AC_MSG_CHECKING(for GNU C library)
 881 AC_CACHE_VAL(gcc_cv_glibc,
 882 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
 883   [[#include <features.h>]], [[
 884 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
 885 #error Not a GNU C library system
 886 #endif]])],
 887   [gcc_cv_glibc=yes],
 888   [gcc_cv_glibc=no])])
 889 AC_MSG_RESULT($gcc_cv_glibc)
 890 if test $gcc_cv_glibc = yes; then
 891   AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
 892 fi
 893
 894 # Need to reject headers which give warnings, so that the -Werror bootstrap
 895 # works later. *sigh*  This needs to come before all header checks.
 896 AC_PROG_CPP_WERROR
 897
 898 AC_HEADER_STDC
 899 AC_HEADER_TIME
 900 ACX_HEADER_STRING
 901 AC_HEADER_SYS_WAIT
 902 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
 903                  fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
 904                  sys/resource.h sys/param.h sys/times.h sys/stat.h \
 905                  direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
 906
 907 # Check for thread headers.
 908 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
 909 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
 910
 911 # These tests can't be done till we know if we have limits.h.
 912 gcc_AC_C_CHAR_BIT
 913 AC_C_BIGENDIAN
 914
 915 # --------
 916 # UNSORTED
 917 # --------
 918
 919 # Stage specific cflags for build.
 920 stage1_cflags=
 921 case $build in
 922 vax-*-*)
 923   if test x$GCC = xyes
 924   then
 925     stage1_cflags="-Wa,-J"
 926   else
 927     stage1_cflags="-J"
 928   fi
 929   ;;
 930 powerpc-*-darwin*)
 931   # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
 932   # sources; use -no-cpp-precomp to get to GNU cpp.
 933   # Apple's GCC has bugs in designated initializer handling, so disable
 934   # that too.
 935   stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
 936   ;;
 937 esac
 938 AC_SUBST(stage1_cflags)
 939
 940 # These libraries may be used by collect2.
 941 # We may need a special search path to get them linked.
 942 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
 943 [save_LIBS="$LIBS"
 944 for libs in '' -lld -lmld \
 945                 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
 946                 '-L/usr/lib/cmplrs/cc3.11 -lmld'
 947 do
 948         LIBS="$libs"
 949         AC_TRY_LINK_FUNC(ldopen,
 950                 [gcc_cv_collect2_libs="$libs"; break])
 951 done
 952 LIBS="$save_LIBS"
 953 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
 954 case $gcc_cv_collect2_libs in
 955         "none required")        ;;
 956         *)      COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
 957 esac
 958 AC_SUBST(COLLECT2_LIBS)
 959
 960 # When building Ada code on Alpha, we need exc_resume which is usually in
 961 # -lexc.  So test for it.
 962 save_LIBS="$LIBS"
 963 LIBS=
 964 AC_SEARCH_LIBS(exc_resume, exc)
 965 GNAT_LIBEXC="$LIBS"
 966 LIBS="$save_LIBS"
 967 AC_SUBST(GNAT_LIBEXC)
 968
 969 # Some systems put ldexp and frexp in libm instead of libc; assume
 970 # they're both in the same place.  jcf-dump needs them.
 971 save_LIBS="$LIBS"
 972 LIBS=
 973 AC_SEARCH_LIBS(ldexp, m)
 974 LDEXP_LIB="$LIBS"
 975 LIBS="$save_LIBS"
 976 AC_SUBST(LDEXP_LIB)
 977
 978 # Use <inttypes.h> only if it exists,
 979 # doesn't clash with <sys/types.h>, and declares intmax_t.
 980 AC_MSG_CHECKING(for inttypes.h)
 981 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
 982 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
 983 [[#include <sys/types.h>
 984 #include <inttypes.h>]],
 985   [[intmax_t i = -1;]])],
 986   [gcc_cv_header_inttypes_h=yes],
 987   [gcc_cv_header_inttypes_h=no])])
 988 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
 989 if test $gcc_cv_header_inttypes_h = yes; then
 990   AC_DEFINE(HAVE_INTTYPES_H, 1,
 991         [Define if you have a working <inttypes.h> header file.])
 992 fi
 993
 994 dnl Disabled until we have a complete test for buggy enum bitfields.
 995 dnl gcc_AC_C_ENUM_BF_UNSIGNED
 996
 997 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
 998   ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
 999   fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
1000   fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
1001   putchar_unlocked putc_unlocked)
1002 AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
1003         sysconf strsignal getrusage nl_langinfo scandir alphasort \
1004         gettimeofday mbstowcs wcswidth mmap mincore setlocale \
1005         gcc_UNLOCKED_FUNCS)
1006
1007 if test x$ac_cv_func_mbstowcs = xyes; then
1008   AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
1009 [    AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
1010 int main()
1011 {
1012   mbstowcs(0, "", 0);
1013   return 0;
1014 }]])],
1015     [gcc_cv_func_mbstowcs_works=yes],
1016     [gcc_cv_func_mbstowcs_works=no],
1017     [gcc_cv_func_mbstowcs_works=yes])])
1018   if test x$gcc_cv_func_mbstowcs_works = xyes; then
1019     AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1020   [Define this macro if mbstowcs does not crash when its
1021    first argument is NULL.])
1022   fi
1023 fi
1024
1025 AC_CHECK_TYPE(ssize_t, int)
1026
1027 # Try to determine the array type of the second argument of getgroups
1028 # for the target system (int or gid_t).
1029 AC_TYPE_GETGROUPS
1030 if test "${target}" = "${build}"; then
1031   TARGET_GETGROUPS_T=$ac_cv_type_getgroups
1032 else
1033   case "${target}" in
1034         # This condition may need some tweaking.  It should include all
1035         # targets where the array type of the second argument of getgroups
1036         # is int and the type of gid_t is not equivalent to int.
1037         *-*-sunos* | *-*-ultrix*)
1038                 TARGET_GETGROUPS_T=int
1039                 ;;
1040         *)
1041                 TARGET_GETGROUPS_T=gid_t
1042                 ;;
1043   esac
1044 fi
1045 AC_SUBST(TARGET_GETGROUPS_T)
1046
1047 gcc_AC_FUNC_MMAP_BLACKLIST
1048
1049 case "${host}" in
1050 *-*-*vms*)
1051   # Under VMS, vfork works very differently than on Unix. The standard test
1052   # won't work, and it isn't easily adaptable. It makes more sense to
1053   # just force it.
1054   ac_cv_func_vfork_works=yes
1055   ;;
1056 esac
1057 AC_FUNC_FORK
1058
1059 AM_ICONV
1060 # Until we have in-tree GNU iconv:
1061 LIBICONV_DEP=
1062 AC_SUBST(LIBICONV_DEP)
1063
1064 AM_LC_MESSAGES
1065
1066 AM_LANGINFO_CODESET
1067
1068 # We will need to find libiberty.h and ansidecl.h
1069 saved_CFLAGS="$CFLAGS"
1070 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1071 gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
1072         strsignal strstr strverscmp \
1073         errno snprintf vsnprintf vasprintf malloc realloc calloc \
1074         free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1075 #include "ansidecl.h"
1076 #include "system.h"])
1077
1078 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1079 #include "ansidecl.h"
1080 #include "system.h"
1081 #ifdef HAVE_SYS_RESOURCE_H
1082 #include <sys/resource.h>
1083 #endif
1084 ])
1085
1086 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1087 #include "ansidecl.h"
1088 #include "system.h"
1089 #ifdef HAVE_SYS_RESOURCE_H
1090 #include <sys/resource.h>
1091 #endif
1092 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
1093 [Define to \`long' if <sys/resource.h> doesn't define.])])
1094
1095 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1096 # FREAD and FWRITE macros.  Fortunately, for GCC's single usage of ldgetname
1097 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1098 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1099 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1100 #include "ansidecl.h"
1101 #include "system.h"
1102 #ifdef HAVE_LDFCN_H
1103 #undef FREAD
1104 #undef FWRITE
1105 #include <ldfcn.h>
1106 #endif
1107 ])
1108
1109 gcc_AC_CHECK_DECLS(times, , ,[
1110 #include "ansidecl.h"
1111 #include "system.h"
1112 #ifdef HAVE_SYS_TIMES_H
1113 #include <sys/times.h>
1114 #endif
1115 ])
1116
1117 # More time-related stuff.
1118 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1119 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1120 #include "ansidecl.h"
1121 #include "system.h"
1122 #ifdef HAVE_SYS_TIMES_H
1123 #include <sys/times.h>
1124 #endif
1125 ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
1126 if test $ac_cv_struct_tms = yes; then
1127   AC_DEFINE(HAVE_STRUCT_TMS, 1,
1128   [Define if <sys/times.h> defines struct tms.])
1129 fi
1130
1131 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1132 # revisit after autoconf 2.50.
1133 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1134 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1135 #include "ansidecl.h"
1136 #include "system.h"
1137 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
1138 if test $gcc_cv_type_clock_t = yes; then
1139   AC_DEFINE(HAVE_CLOCK_T, 1,
1140   [Define if <time.h> defines clock_t.])
1141 fi
1142
1143 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1144 CFLAGS="$saved_CFLAGS"
1145
1146 gcc_AC_INITFINI_ARRAY
1147
1148 # mkdir takes a single argument on some systems.
1149 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1150
1151 # File extensions
1152 manext='.1'
1153 objext='.o'
1154 AC_SUBST(manext)
1155 AC_SUBST(objext)
1156
1157 # With Setjmp/Longjmp based exception handling.
1158 AC_ARG_ENABLE(sjlj-exceptions,
1159 [  --enable-sjlj-exceptions
1160                           arrange to use setjmp/longjmp exception handling],
1161 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1162 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1163   [Define 0/1 to force the choice for exception handling model.])])
1164
1165 # For platforms with the unwind ABI which includes an unwind library,
1166 # libunwind, we can choose to use the system libunwind.
1167 AC_ARG_WITH(system-libunwind,
1168 [  --with-system-libunwind use installed libunwind])
1169
1170 # --------------------------------------------------------
1171 # Build, host, and target specific configuration fragments
1172 # --------------------------------------------------------
1173
1174 # Collect build-machine-specific information.
1175 . ${srcdir}/config.build
1176
1177 # Collect host-machine-specific information.
1178 . ${srcdir}/config.host
1179
1180 target_gtfiles=
1181
1182 # Collect target-machine-specific information.
1183 . ${srcdir}/config.gcc
1184
1185 extra_objs="${host_extra_objs} ${extra_objs}"
1186 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1187
1188 # Default the target-machine variables that were not explicitly set.
1189 if test x"$tm_file" = x
1190 then tm_file=$cpu_type/$cpu_type.h; fi
1191
1192 if test x"$extra_headers" = x
1193 then extra_headers=; fi
1194
1195 if test x$md_file = x
1196 then md_file=$cpu_type/$cpu_type.md; fi
1197
1198 if test x$out_file = x
1199 then out_file=$cpu_type/$cpu_type.c; fi
1200
1201 if test x"$tmake_file" = x
1202 then tmake_file=$cpu_type/t-$cpu_type
1203 fi
1204
1205 if test x"$dwarf2" = xyes
1206 then tm_file="$tm_file tm-dwarf2.h"
1207 fi
1208
1209 # Say what files are being used for the output code and MD file.
1210 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1211 echo "Using \`$srcdir/config/$md_file' as machine description file."
1212
1213 # If any of the xm_file variables contain nonexistent files, warn
1214 # about them and drop them.
1215
1216 bx=
1217 for x in $build_xm_file; do
1218   if    test -f $srcdir/config/$x
1219   then      bx="$bx $x"
1220   else      AC_MSG_WARN($srcdir/config/$x does not exist.)
1221   fi
1222 done
1223 build_xm_file="$bx"
1224
1225 hx=
1226 for x in $host_xm_file; do
1227   if    test -f $srcdir/config/$x
1228   then      hx="$hx $x"
1229   else      AC_MSG_WARN($srcdir/config/$x does not exist.)
1230   fi
1231 done
1232 host_xm_file="$hx"
1233
1234 tx=
1235 for x in $xm_file; do
1236   if    test -f $srcdir/config/$x
1237   then      tx="$tx $x"
1238   else      AC_MSG_WARN($srcdir/config/$x does not exist.)
1239   fi
1240 done
1241 xm_file="$tx"
1242
1243 count=a
1244 for f in $tm_file; do
1245         count=${count}x
1246 done
1247 if test $count = ax; then
1248         echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1249 else
1250         echo "Using the following target machine macro files:"
1251         for f in $tm_file; do
1252                 echo "  $srcdir/config/$f"
1253         done
1254 fi
1255
1256 if test x$need_64bit_hwint = xyes; then
1257         AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1258 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1259 fi
1260
1261 if test x$use_long_long_for_widest_fast_int = xyes; then
1262         AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1263 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1264 efficiently supported by the host hardware.])
1265 fi
1266
1267 count=a
1268 for f in $host_xm_file; do
1269         count=${count}x
1270 done
1271 if test $count = a; then
1272         :
1273 elif test $count = ax; then
1274         echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1275 else
1276         echo "Using the following host machine macro files:"
1277         for f in $host_xm_file; do
1278                 echo "  $srcdir/config/$f"
1279         done
1280 fi
1281 echo "Using ${out_host_hook_obj} for host machine hooks."
1282
1283 if test "$host_xm_file" != "$build_xm_file"; then
1284         count=a
1285         for f in $build_xm_file; do
1286                 count=${count}x
1287         done
1288         if test $count = a; then
1289                 :
1290         elif test $count = ax; then
1291                 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1292         else
1293                 echo "Using the following build machine macro files:"
1294                 for f in $build_xm_file; do
1295                         echo "  $srcdir/config/$f"
1296                 done
1297         fi
1298 fi
1299
1300 # ---------
1301 # Threading
1302 # ---------
1303
1304 # Check if a valid thread package
1305 case ${enable_threads} in
1306   "" | no)
1307     # No threads
1308     target_thread_file='single'
1309     ;;
1310   yes)
1311     # default
1312     target_thread_file='single'
1313     ;;
1314   aix | dce | gnat | irix | posix | posix95 | rtems | \
1315   single | solaris | vxworks | win32 )
1316     target_thread_file=${enable_threads}
1317     ;;
1318   *)
1319     echo "${enable_threads} is an unknown thread package" 1>&2
1320     exit 1
1321     ;;
1322 esac
1323
1324 if test x${thread_file} = x; then
1325   # No thread file set by target-specific clauses in config.gcc,
1326   # so use file chosen by default logic above
1327   thread_file=${target_thread_file}
1328 fi
1329
1330 # Make gthr-default.h if we have a thread file.
1331 gthread_flags=
1332 if test $thread_file != single; then
1333   rm -f gthr-default.h
1334   echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1335   gthread_flags=-DHAVE_GTHR_DEFAULT
1336 fi
1337 AC_SUBST(gthread_flags)
1338
1339 # --------
1340 # UNSORTED
1341 # --------
1342
1343 use_cxa_atexit=no
1344 if test x$enable___cxa_atexit = xyes || \
1345    test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1346   if test x$host = x$target; then
1347     AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1348         [echo "__cxa_atexit can't be enabled on this target"])
1349   else
1350     # We can't check for __cxa_atexit when building a cross, so assume
1351     # it is available
1352     use_cxa_atexit=yes
1353   fi
1354   if test x$use_cxa_atexit = xyes; then
1355     AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1356       [Define if you want to use __cxa_atexit, rather than atexit, to
1357       register C++ destructors for local statics and global objects.
1358       This is essential for fully standards-compliant handling of
1359       destructors, but requires __cxa_atexit in libc.])
1360   fi
1361 fi
1362
1363 # Look for a file containing extra machine modes.
1364 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1365   extra_modes_file='$(srcdir)'/config/${extra_modes}
1366   AC_SUBST(extra_modes_file)
1367   AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1368   [Define to the name of a file containing a list of extra machine modes
1369    for this architecture.])
1370 fi
1371
1372 # Convert extra_options into a form suitable for Makefile use.
1373 extra_opt_files=
1374 for f in $extra_options; do
1375   extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1376 done
1377 AC_SUBST(extra_opt_files)
1378
1379 # auto-host.h is the file containing items generated by autoconf and is
1380 # the first file included by config.h.
1381 # If host=build, it is correct to have bconfig include auto-host.h
1382 # as well.  If host!=build, we are in error and need to do more
1383 # work to find out the build config parameters.
1384 if test x$host = x$build
1385 then
1386         build_auto=auto-host.h
1387 else
1388         # We create a subdir, then run autoconf in the subdir.
1389         # To prevent recursion we set host and build for the new
1390         # invocation of configure to the build for this invocation
1391         # of configure.
1392         tempdir=build.$$
1393         rm -rf $tempdir
1394         mkdir $tempdir
1395         cd $tempdir
1396         case ${srcdir} in
1397         /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1398         *) realsrcdir=../${srcdir};;
1399         esac
1400         saved_CFLAGS="${CFLAGS}"
1401         CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1402         ${realsrcdir}/configure \
1403                 --enable-languages=${enable_languages-all} \
1404                 --target=$target_alias --host=$build_alias --build=$build_alias
1405         CFLAGS="${saved_CFLAGS}"
1406
1407         # We just finished tests for the build machine, so rename
1408         # the file auto-build.h in the gcc directory.
1409         mv auto-host.h ../auto-build.h
1410         cd ..
1411         rm -rf $tempdir
1412         build_auto=auto-build.h
1413 fi
1414 AC_SUBST(build_subdir)
1415
1416 tm_file="${tm_file} defaults.h"
1417 tm_p_file="${tm_p_file} tm-preds.h"
1418 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1419 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1420 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1421 # put this back in temporarily.
1422 xm_file="auto-host.h ansidecl.h ${xm_file}"
1423
1424 # --------
1425 # UNSORTED
1426 # --------
1427
1428 changequote(,)dnl
1429 # Compile in configure arguments.
1430 if test -f configargs.h ; then
1431         # Being re-configured.
1432         gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1433         gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1434 else
1435         gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1436 fi
1437
1438 # Double all backslashes and backslash all quotes to turn
1439 # gcc_config_arguments into a C string.
1440 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1441 $gcc_config_arguments
1442 EOF
1443 gcc_config_arguments_str=`cat conftest.out`
1444 rm -f conftest.out
1445
1446 cat > configargs.h <<EOF
1447 /* Generated automatically. */
1448 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1449 static const char thread_model[] = "$thread_file";
1450
1451 static const struct {
1452   const char *name, *value;
1453 } configure_default_options[] = $configure_default_options;
1454 EOF
1455 changequote([,])dnl
1456
1457 # Internationalization
1458 ZW_GNU_GETTEXT_SISTER_DIR
1459
1460 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1461 # -liconv on the link line twice.
1462 case "$LIBINTL" in *$LIBICONV*)
1463         LIBICONV= ;;
1464 esac
1465
1466 AC_ARG_ENABLE(secureplt,
1467 [  --enable-secureplt      enable -msecure-plt by default for PowerPC],
1468 [], [])
1469
1470 # Windows32 Registry support for specifying GCC installation paths.
1471 AC_ARG_ENABLE(win32-registry,
1472 [  --disable-win32-registry
1473                           disable lookup of installation paths in the
1474                           Registry on Windows hosts
1475   --enable-win32-registry enable registry lookup (default)
1476   --enable-win32-registry=KEY
1477                           use KEY instead of GCC version as the last portion
1478                           of the registry key],,)
1479
1480 case $host_os in
1481   win32 | pe | cygwin* | mingw32* | uwin*)
1482     if test "x$enable_win32_registry" != xno; then
1483       AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1484     fi
1485
1486     if test "x$enable_win32_registry" != xno; then
1487       AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1488   [Define to 1 if installation paths should be looked up in the Windows
1489    Registry. Ignored on non-Windows hosts.])
1490
1491       if test "x$enable_win32_registry" != xyes \
1492          && test "x$enable_win32_registry" != x; then
1493         AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1494   [Define to be the last component of the Windows registry key under which
1495    to look for installation paths.  The full key used will be
1496    HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1497    The default is the GCC version number.])
1498       fi
1499     fi
1500   ;;
1501 esac
1502
1503 # Get an absolute path to the GCC top-level source directory
1504 holddir=`${PWDCMD-pwd}`
1505 cd $srcdir
1506 topdir=`${PWDCMD-pwd}`
1507 cd $holddir
1508
1509 # Conditionalize the makefile for this host machine.
1510 xmake_file=
1511 for f in ${host_xmake_file}
1512 do
1513         if test -f ${srcdir}/config/$f
1514         then
1515                 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1516         fi
1517 done
1518
1519 # Conditionalize the makefile for this target machine.
1520 tmake_file_=
1521 for f in ${tmake_file}
1522 do
1523         if test -f ${srcdir}/config/$f
1524         then
1525                 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1526         fi
1527 done
1528 tmake_file="${tmake_file_}"
1529
1530 # If the host doesn't support symlinks, modify CC in
1531 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1532 # Otherwise, we can use "CC=$(CC)".
1533 rm -f symtest.tem
1534 case "$LN_S" in
1535         *-s*)
1536                 cc_set_by_configure="\$(CC)"
1537                 quoted_cc_set_by_configure="\$(CC)"
1538                 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1539                 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1540                 ;;
1541         *)
1542                 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1543                 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1544                 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1545                 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1546                 ;;
1547 esac
1548
1549 # This is a terrible hack which will go away some day.
1550 host_cc_for_libada=${CC}
1551 AC_SUBST(host_cc_for_libada)
1552
1553 out_object_file=`basename $out_file .c`.o
1554
1555 tm_file_list="options.h"
1556 tm_include_list="options.h"
1557 for f in $tm_file; do
1558   case $f in
1559     defaults.h )
1560        tm_file_list="${tm_file_list} \$(srcdir)/$f"
1561        tm_include_list="${tm_include_list} $f"
1562        ;;
1563     * )
1564        tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1565        tm_include_list="${tm_include_list} config/$f"
1566        ;;
1567   esac
1568 done
1569
1570 tm_p_file_list=
1571 tm_p_include_list=
1572 for f in $tm_p_file; do
1573   case $f in
1574     tm-preds.h )
1575        tm_p_file_list="${tm_p_file_list} $f"
1576        tm_p_include_list="${tm_p_include_list} $f"
1577        ;;
1578     * )
1579        tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1580        tm_p_include_list="${tm_p_include_list} config/$f"
1581   esac
1582 done
1583
1584 xm_file_list=
1585 xm_include_list=
1586 for f in $xm_file; do
1587   case $f in
1588     ansidecl.h )
1589        xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1590        xm_include_list="${xm_include_list} $f"
1591        ;;
1592     auto-host.h )
1593        xm_file_list="${xm_file_list} $f"
1594        xm_include_list="${xm_include_list} $f"
1595        ;;
1596     * )
1597        xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1598        xm_include_list="${xm_include_list} config/$f"
1599        ;;
1600   esac
1601 done
1602
1603 host_xm_file_list=
1604 host_xm_include_list=
1605 for f in $host_xm_file; do
1606   case $f in
1607     ansidecl.h )
1608        host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1609        host_xm_include_list="${host_xm_include_list} $f"
1610        ;;
1611     auto-host.h )
1612        host_xm_file_list="${host_xm_file_list} $f"
1613        host_xm_include_list="${host_xm_include_list} $f"
1614        ;;
1615     * )
1616        host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1617        host_xm_include_list="${host_xm_include_list} config/$f"
1618        ;;
1619   esac
1620 done
1621
1622 build_xm_file_list=
1623 for f in $build_xm_file; do
1624   case $f in
1625     ansidecl.h )
1626        build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1627        build_xm_include_list="${build_xm_include_list} $f"
1628        ;;
1629     auto-build.h | auto-host.h )
1630        build_xm_file_list="${build_xm_file_list} $f"
1631        build_xm_include_list="${build_xm_include_list} $f"
1632        ;;
1633     * )
1634        build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1635        build_xm_include_list="${build_xm_include_list} config/$f"
1636        ;;
1637   esac
1638 done
1639
1640 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1641 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1642 CROSS=                                          AC_SUBST(CROSS)
1643 ALL=all.internal                                AC_SUBST(ALL)
1644 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1645
1646 if test "x$with_build_sysroot" != x; then
1647   build_system_header_dir=$with_build_sysroot'$(NATIVE_SYSTEM_HEADER_DIR)'
1648 else
1649   # This value is used, even on a native system, because
1650   # CROSS_SYSTEM_HEADER_DIR is just
1651   # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
1652   build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
1653 fi
1654
1655 if test x$host != x$target
1656 then
1657         CROSS="-DCROSS_COMPILE"
1658         ALL=all.cross
1659         SYSTEM_HEADER_DIR=$build_system_header_dir
1660         case "$host","$target" in
1661         # Darwin crosses can use the host system's libraries and headers,
1662         # because of the fat library support.  Of course, it must be the
1663         # same version of Darwin on both sides.  Allow the user to
1664         # just say --target=foo-darwin without a version number to mean
1665         # "the version on this system".
1666             *-*-darwin*,*-*-darwin*)
1667                 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1668                 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1669                 if test $hostos = $targetos -o $targetos = darwin ; then
1670                     CROSS=
1671                     SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1672                     with_headers=yes
1673                 fi
1674                 ;;
1675
1676             i?86-*-*,x86_64-*-* \
1677             | powerpc*-*-*,powerpc64*-*-*)
1678                 CROSS="$CROSS -DNATIVE_CROSS" ;;
1679         esac
1680 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1681         SYSTEM_HEADER_DIR=$build_system_header_dir
1682 fi
1683
1684 # If this is a cross-compiler that does not
1685 # have its own set of headers then define
1686 # inhibit_libc
1687
1688 # If this is using newlib, without having the headers available now,
1689 # then define inhibit_libc in LIBGCC2_CFLAGS.
1690 # This prevents libgcc2 from containing any code which requires libc
1691 # support.
1692 inhibit_libc=false
1693 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1694        test x$with_newlib = xyes ; } &&
1695      { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1696        inhibit_libc=true
1697 fi
1698 AC_SUBST(inhibit_libc)
1699
1700 # When building gcc with a cross-compiler, we need to adjust things so
1701 # that the generator programs are still built with the native compiler.
1702 # Also, we cannot run fixincludes or fix-header.
1703
1704 # These are the normal (build=host) settings:
1705 CC_FOR_BUILD='$(CC)'            AC_SUBST(CC_FOR_BUILD)
1706 BUILD_CFLAGS='$(ALL_CFLAGS)'    AC_SUBST(BUILD_CFLAGS)
1707 STMP_FIXINC=stmp-fixinc         AC_SUBST(STMP_FIXINC)
1708
1709 # Possibly disable fixproto, on a per-target basis.
1710 case ${use_fixproto} in
1711   no)
1712     STMP_FIXPROTO=
1713     ;;
1714   yes)
1715     STMP_FIXPROTO=stmp-fixproto
1716     ;;
1717 esac
1718 AC_SUBST(STMP_FIXPROTO)
1719
1720 # And these apply if build != host, or we are generating coverage data
1721 if test x$build != x$host || test "x$coverage_flags" != x
1722 then
1723     BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1724
1725     if test "x$TARGET_SYSTEM_ROOT" = x; then
1726         if test "x$STMP_FIXPROTO" != x; then
1727           STMP_FIXPROTO=stmp-install-fixproto
1728         fi
1729     fi
1730 fi
1731
1732 # Expand extra_headers to include complete path.
1733 # This substitutes for lots of t-* files.
1734 extra_headers_list=
1735 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1736 for file in ${extra_headers} ; do
1737   extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1738 done
1739
1740 # Define collect2 in Makefile.
1741 case $host_can_use_collect2 in
1742   no) collect2= ;;
1743   *) collect2='collect2$(exeext)' ;;
1744 esac
1745 AC_SUBST([collect2])
1746
1747 # Add a definition of USE_COLLECT2 if system wants one.
1748 case $use_collect2 in
1749   no) use_collect2= ;;
1750   "") ;;
1751   *)
1752     host_xm_defines="${host_xm_defines} USE_COLLECT2"
1753     xm_defines="${xm_defines} USE_COLLECT2"
1754     case $host_can_use_collect2 in
1755       no)
1756         AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1757         ;;
1758     esac
1759     ;;
1760 esac
1761
1762 # ---------------------------
1763 # Assembler & linker features
1764 # ---------------------------
1765
1766 # Identify the assembler which will work hand-in-glove with the newly
1767 # built GCC, so that we can examine its features.  This is the assembler
1768 # which will be driven by the driver program.
1769 #
1770 # If build != host, and we aren't building gas in-tree, we identify a
1771 # build->target assembler and hope that it will have the same features
1772 # as the host->target assembler we'll be using.
1773 in_tree_gas=no
1774 gcc_cv_as=
1775 gcc_cv_gas_major_version=
1776 gcc_cv_gas_minor_version=
1777 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1778 if test -x "$DEFAULT_ASSEMBLER"; then
1779         gcc_cv_as="$DEFAULT_ASSEMBLER"
1780 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1781      && test -f ../gas/Makefile \
1782      && test x$build = x$host; then
1783   # Single tree build which includes gas.  We want to prefer it
1784   # over whatever linker top-level may have detected, since
1785   # we'll use what we're building after installation anyway.
1786   in_tree_gas=yes
1787   _gcc_COMPUTE_GAS_VERSION
1788   gcc_cv_as=../gas/as-new$build_exeext
1789   in_tree_gas_is_elf=no
1790   if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1791      || (grep 'obj_format = multi' ../gas/Makefile \
1792          && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1793   then
1794     in_tree_gas_is_elf=yes
1795   fi
1796 m4_pattern_allow([AS_FOR_TARGET])dnl
1797 elif test -x as$build_exeext; then
1798         # Build using assembler in the current directory.
1799         gcc_cv_as=./as$build_exeext
1800 elif test -x "$AS_FOR_TARGET"; then
1801         gcc_cv_as="$AS_FOR_TARGET"
1802 elif test -x "$AS" && test x$host = x$target; then
1803         gcc_cv_as="$AS"
1804 fi
1805
1806 gcc_AC_CHECK_TOOL(gcc_cv_as, as, ORIGINAL_AS_FOR_TARGET)
1807 AC_MSG_CHECKING(what assembler to use)
1808 case $in_tree_gas in
1809   yes)
1810     AC_MSG_RESULT("newly built gas")
1811     ;;
1812   no)
1813     AC_MSG_RESULT($gcc_cv_as)
1814     ;;
1815 esac
1816
1817 # Identify the linker which will work hand-in-glove with the newly
1818 # built GCC, so that we can examine its features.  This is the linker
1819 # which will be driven by the driver program.
1820 #
1821 # If build != host, and we aren't building gas in-tree, we identify a
1822 # build->target linker and hope that it will have the same features
1823 # as the host->target linker we'll be using.
1824 in_tree_ld=no
1825 gcc_cv_ld=
1826 gcc_cv_gld_major_version=
1827 gcc_cv_gld_minor_version=
1828 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1829 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1830 if test -x "$DEFAULT_LINKER"; then
1831         gcc_cv_ld="$DEFAULT_LINKER"
1832 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1833      && test -f ../ld/Makefile \
1834      && test x$build = x$host; then
1835         # Single tree build which includes ld.  We want to prefer it
1836         # over whatever linker top-level may have detected, since
1837         # we'll use what we're building after installation anyway.
1838         in_tree_ld=yes
1839         in_tree_ld_is_elf=no
1840         if (grep 'EMUL = .*elf' ../ld/Makefile \
1841             || grep 'EMUL = .*linux' ../ld/Makefile \
1842             || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1843           in_tree_ld_is_elf=yes
1844         fi
1845         for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
1846         do
1847 changequote(,)dnl
1848                 gcc_cv_gld_version=`sed -n -e 's/^[     ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1849 changequote([,])dnl
1850                 if test x$gcc_cv_gld_version != x; then
1851                         break
1852                 fi
1853         done
1854 changequote(,)dnl
1855         gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1856         gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1857 changequote([,])dnl
1858         gcc_cv_ld=../ld/ld-new$build_exeext
1859 elif test -x collect-ld$build_exeext; then
1860         # Build using linker in the current directory.
1861         gcc_cv_ld=./collect-ld$build_exeext
1862 elif test -x "$LD_FOR_TARGET"; then
1863         gcc_cv_ld="$LD_FOR_TARGET"
1864 elif test -x "$LD" && test x$host = x$target; then
1865         gcc_cv_ld="$LD"
1866 fi
1867
1868 gcc_AC_CHECK_TOOL(gcc_cv_ld, ld, ORIGINAL_LD_FOR_TARGET)
1869 AC_MSG_CHECKING(what linker to use)
1870 case $in_tree_ld in
1871   yes)
1872     AC_MSG_RESULT("newly built ld")
1873     ;;
1874   no)
1875     AC_MSG_RESULT($gcc_cv_ld)
1876     ;;
1877 esac
1878
1879 # Figure out what nm we will be using.
1880 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1881 in_tree_nm=no
1882 gcc_cv_nm=
1883 if test -f $gcc_cv_binutils_srcdir/configure.in \
1884      && test -f ../binutils/Makefile; then
1885         # Single tree build which includes binutils.
1886         in_tree_nm=yes
1887         gcc_cv_nm=../binutils/nm-new$build_exeext
1888 elif test -x nm$build_exeext; then
1889         gcc_cv_nm=./nm$build_exeext
1890 fi
1891
1892 gcc_AC_CHECK_TOOL(gcc_cv_nm, nm, ORIGINAL_NM_FOR_TARGET)
1893 AC_MSG_CHECKING(what nm to use)
1894 case $in_tree_nm in
1895   yes) AC_MSG_RESULT("newly built nm") ;;
1896   no)  AC_MSG_RESULT($gcc_cv_nm) ;;
1897 esac
1898
1899 # Figure out what objdump we will be using.
1900 AC_MSG_CHECKING(what objdump to use)
1901 in_tree_objdump=no
1902 if test -x objdump$build_exeext; then
1903         gcc_cv_objdump=./objdump$build_exeext
1904 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1905      && test -f ../binutils/Makefile; then
1906         # Single tree build which includes binutils.
1907         in_tree_objdump=yes
1908         gcc_cv_objdump=../binutils/objdump$build_exeext
1909 elif test "x$program_prefix" != xNONE; then
1910         gcc_cv_objdump=${program_prefix}objdump$build_exeext
1911 elif test x$build != x$host && test x$build != x$target; then
1912         gcc_cv_objdump=${target_noncanonical}-objdump$build_exeext
1913 else
1914         gcc_cv_objdump=`echo objdump | \
1915                 sed "${program_transform_name}"`$build_exeext
1916 fi
1917 case $in_tree_objdump in
1918   yes) AC_MSG_RESULT("newly built objdump") ;;
1919   no)  AC_MSG_RESULT($gcc_cv_objdump) ;;
1920 esac
1921
1922 # Figure out what assembler alignment features are present.
1923 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1924  [2,6,0],,
1925 [.balign 4
1926 .p2align 2],,
1927 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1928   [Define if your assembler supports .balign and .p2align.])])
1929
1930 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1931  [2,8,0],,
1932  [.p2align 4,,7],,
1933 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1934   [Define if your assembler supports specifying the maximum number
1935    of bytes to skip when using the GAS .p2align command.])])
1936
1937 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1938  [elf,2,9,0],,
1939  [conftest_label1: .word 0
1940 .subsection -1
1941 conftest_label2: .word 0
1942 .previous],
1943  [if test x$gcc_cv_nm != x; then
1944     $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1945     $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1946     if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1947     then :
1948     else gcc_cv_as_subsection_m1=yes
1949     fi
1950     rm -f conftest.nm1 conftest.nm2
1951   fi],
1952  [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1953   [Define if your assembler supports .subsection and .subsection -1 starts
1954    emitting at the beginning of your section.])])
1955
1956 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1957  [2,2,0],,
1958  [      .weak foobar],,
1959 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1960
1961 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
1962  [2,15,91],,
1963  [      .SPACE $TEXT$
1964         .NSUBSPA $CODE$,COMDAT],,
1965 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
1966
1967 # .hidden needs to be supported in both the assembler and the linker,
1968 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1969 # This is irritatingly difficult to feature test for; we have to check the
1970 # date string after the version number.  If we've got an in-tree
1971 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1972 # to be safe.
1973 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1974 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1975  [elf,2,13,0],,
1976 [       .hidden foobar
1977 foobar:])
1978
1979 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1980 [if test $in_tree_ld = yes ; then
1981   gcc_cv_ld_hidden=no
1982   if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1983      && test $in_tree_ld_is_elf = yes; then
1984      gcc_cv_ld_hidden=yes
1985   fi
1986 else
1987   gcc_cv_ld_hidden=yes
1988   ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1989   if echo "$ld_ver" | grep GNU > /dev/null; then
1990 changequote(,)dnl
1991     ld_vers=`echo $ld_ver | sed -n \
1992         -e 's,^.*[       ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1993         -e 's,^.*[       ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1994         -e 's,^.*[       ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1995         -e 's,^.*[       ]\([0-9][0-9]*\.[0-9][0-9]*\)[  ].*$,\1,p' \
1996         -e 's,^.*[       ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[     ].*$,\1,p' \
1997         -e 's,^.*[       ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[       ].*$,\1,p' \
1998         -e 's,^.*[       ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[   ].*$,\1,p'`
1999     ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2000     ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2001     ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2002     ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2003     if test 0"$ld_date" -lt 20020404; then
2004       if test -n "$ld_date"; then
2005         # If there was date string, but was earlier than 2002-04-04, fail
2006         gcc_cv_ld_hidden=no
2007       elif test -z "$ld_vers"; then
2008         # If there was no date string nor ld version number, something is wrong
2009         gcc_cv_ld_hidden=no
2010       else
2011         test -z "$ld_vers_patch" && ld_vers_patch=0
2012         if test "$ld_vers_major" -lt 2; then
2013           gcc_cv_ld_hidden=no
2014         elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2015           gcc_cv_ld_hidden="no"
2016         elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2017           gcc_cv_ld_hidden=no
2018         fi
2019       fi
2020 changequote([,])dnl
2021     fi
2022   else
2023     case "${target}" in
2024       hppa64*-*-hpux* | ia64*-*-hpux*)
2025         gcc_cv_ld_hidden=yes
2026         ;;
2027       *)
2028         gcc_cv_ld_hidden=no
2029         ;;
2030     esac
2031   fi
2032 fi])
2033 libgcc_visibility=no
2034 AC_SUBST(libgcc_visibility)
2035 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2036 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2037   libgcc_visibility=yes
2038   AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2039   [Define if your assembler and linker support .hidden.])
2040 fi
2041
2042 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2043 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2044   [elf,2,11,0],,
2045 [       .data
2046         .uleb128 L2 - L1
2047 L1:
2048         .uleb128 1280
2049         .sleb128 -1010
2050 L2:],
2051  [# GAS versions before 2.11 do not support uleb128,
2052   # despite appearing to.
2053   # ??? There exists an elf-specific test that will crash
2054   # the assembler.  Perhaps it's better to figure out whether
2055   # arbitrary sections are supported and try the test.
2056   as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2057   if echo "$as_ver" | grep GNU > /dev/null; then
2058 changequote(,)dnl
2059     as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2060     as_major=`echo $as_ver | sed 's/\..*//'`
2061     as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2062 changequote([,])dnl
2063     if test $as_major -eq 2 && test $as_minor -lt 11
2064     then :
2065     else gcc_cv_as_leb128=yes
2066     fi
2067   fi],
2068   [AC_DEFINE(HAVE_AS_LEB128, 1,
2069     [Define if your assembler supports .sleb128 and .uleb128.])])
2070
2071 # GAS versions up to and including 2.11.0 may mis-optimize
2072 # .eh_frame data.
2073 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2074   [elf,2,12,0],,
2075 [       .text
2076 .LFB1:
2077         .4byte  0
2078 .L1:
2079         .4byte  0
2080 .LFE1:
2081         .section        .eh_frame,"aw",@progbits
2082 __FRAME_BEGIN__:
2083         .4byte  .LECIE1-.LSCIE1
2084 .LSCIE1:
2085         .4byte  0x0
2086         .byte   0x1
2087         .ascii "z\0"
2088         .byte   0x1
2089         .byte   0x78
2090         .byte   0x1a
2091         .byte   0x0
2092         .byte   0x4
2093         .4byte  1
2094         .p2align 1
2095 .LECIE1:
2096 .LSFDE1:
2097         .4byte  .LEFDE1-.LASFDE1
2098 .LASFDE1:
2099         .4byte  .LASFDE1-__FRAME_BEGIN__
2100         .4byte  .LFB1
2101         .4byte  .LFE1-.LFB1
2102         .byte   0x4
2103         .4byte  .LFE1-.LFB1
2104         .byte   0x4
2105         .4byte  .L1-.LFB1
2106 .LEFDE1:],
2107 [  dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2108 cat > conftest.lit <<EOF
2109  0000 10000000 00000000 017a0001 781a0004  .........z..x...
2110  0010 01000000 12000000 18000000 00000000  ................
2111  0020 08000000 04080000 0044               .........D      @&t@
2112 EOF
2113 cat > conftest.big <<EOF
2114  0000 00000010 00000000 017a0001 781a0004  .........z..x...
2115  0010 00000001 00000012 00000018 00000000  ................
2116  0020 00000008 04000000 0844               .........D      @&t@
2117 EOF
2118   # If the assembler didn't choke, and we can objdump,
2119   # and we got the correct data, then succeed.
2120   if test x$gcc_cv_objdump != x \
2121   && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2122      | tail -3 > conftest.got \
2123   && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2124     || cmp conftest.big conftest.got > /dev/null 2>&1; }
2125   then
2126     gcc_cv_as_eh_frame=yes
2127   elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2128     gcc_cv_as_eh_frame=buggy
2129   else
2130     # Uh oh, what do we do now?
2131     gcc_cv_as_eh_frame=no
2132   fi])
2133
2134 if test $gcc_cv_as_eh_frame = buggy; then
2135   AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2136   [Define if your assembler mis-optimizes .eh_frame data.])
2137 fi
2138
2139 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2140  [elf,2,12,0], [--fatal-warnings],
2141  [.section .rodata.str, "aMS", @progbits, 1])
2142 if test $gcc_cv_as_shf_merge = no; then
2143   gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2144     [elf,2,12,0], [--fatal-warnings],
2145     [.section .rodata.str, "aMS", %progbits, 1])
2146 fi
2147 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2148   [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2149 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2150
2151 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2152  [elf,2,16,0], [--fatal-warnings],
2153  [.section .text,"axG",@progbits,.foo,comdat])
2154 if test $gcc_cv_as_comdat_group = yes; then
2155   gcc_cv_as_comdat_group_percent=no
2156 else
2157  gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2158    [elf,2,16,0], [--fatal-warnings],
2159    [.section .text,"axG",%progbits,.foo,comdat])
2160 fi
2161 if test $in_tree_ld != yes && test x"$ld_vers" != x; then
2162   comdat_group=yes
2163   if test 0"$ld_date" -lt 20050308; then
2164     if test -n "$ld_date"; then
2165       # If there was date string, but was earlier than 2005-03-08, fail
2166       comdat_group=no
2167     elif test "$ld_vers_major" -lt 2; then
2168       comdat_group=no
2169     elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2170       comdat_group=no
2171     fi
2172   fi
2173   if test $comdat_group = no; then
2174     gcc_cv_as_comdat_group=no
2175     gcc_cv_as_comdat_group_percent=no
2176   fi
2177 fi
2178 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
2179   [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2180 [Define 0/1 if your assembler and linker support COMDAT groups.])
2181
2182 # Thread-local storage - the check is heavily parametrized.
2183 conftest_s=
2184 tls_first_major=
2185 tls_first_minor=
2186 tls_as_opt=
2187 case "$target" in
2188 changequote(,)dnl
2189   alpha*-*-*)
2190     conftest_s='
2191         .section ".tdata","awT",@progbits
2192 foo:    .long   25
2193         .text
2194         ldq     $27,__tls_get_addr($29)         !literal!1
2195         lda     $16,foo($29)                    !tlsgd!1
2196         jsr     $26,($27),__tls_get_addr        !lituse_tlsgd!1
2197         ldq     $27,__tls_get_addr($29)         !literal!2
2198         lda     $16,foo($29)                    !tlsldm!2
2199         jsr     $26,($27),__tls_get_addr        !lituse_tlsldm!2
2200         ldq     $1,foo($29)                     !gotdtprel
2201         ldah    $2,foo($29)                     !dtprelhi
2202         lda     $3,foo($2)                      !dtprello
2203         lda     $4,foo($29)                     !dtprel
2204         ldq     $1,foo($29)                     !gottprel
2205         ldah    $2,foo($29)                     !tprelhi
2206         lda     $3,foo($2)                      !tprello
2207         lda     $4,foo($29)                     !tprel'
2208         tls_first_major=2
2209         tls_first_minor=13
2210         tls_as_opt=--fatal-warnings
2211         ;;
2212   frv*-*-*)
2213     conftest_s='
2214         .section ".tdata","awT",@progbits
2215 x:      .long   25
2216         .text
2217         call    #gettlsoff(x)'
2218         tls_first_major=2
2219         tls_first_minor=14
2220         ;;
2221   hppa*-*-linux*)
2222     conftest_s='
2223 t1:     .reg    %r20
2224 t2:     .reg    %r21
2225 gp:     .reg    %r19
2226         .section ".tdata","awT",@progbits
2227 foo:    .long   25
2228         .text
2229         .align  4
2230         addil LT%foo-$tls_gdidx$,gp
2231         ldo RT%foo-$tls_gdidx$(%r1),%arg0
2232         b __tls_get_addr
2233         nop
2234         addil LT%foo-$tls_ldidx$,gp
2235         b __tls_get_addr
2236         ldo RT%foo-$tls_ldidx$(%r1),%arg0
2237         addil LR%foo-$tls_dtpoff$,%ret0
2238         ldo RR%foo-$tls_dtpoff$(%r1),%t1
2239         mfctl %cr27,%t1
2240         addil LT%foo-$tls_ieoff$,gp
2241         ldw RT%foo-$tls_ieoff$(%r1),%t2
2242         add %t1,%t2,%t3
2243         mfctl %cr27,%t1
2244         addil LR%foo-$tls_leoff$,%t1
2245         ldo RR%foo-$tls_leoff$(%r1),%t2'
2246         tls_first_major=2
2247         tls_first_minor=15
2248         tls_as_opt=--fatal-warnings
2249         ;;
2250   i[34567]86-*-*)
2251     conftest_s='
2252         .section ".tdata","awT",@progbits
2253 foo:    .long   25
2254         .text
2255         movl    %gs:0, %eax
2256         leal    foo@TLSGD(,%ebx,1), %eax
2257         leal    foo@TLSLDM(%ebx), %eax
2258         leal    foo@DTPOFF(%eax), %edx
2259         movl    foo@GOTTPOFF(%ebx), %eax
2260         subl    foo@GOTTPOFF(%ebx), %eax
2261         addl    foo@GOTNTPOFF(%ebx), %eax
2262         movl    foo@INDNTPOFF, %eax
2263         movl    $foo@TPOFF, %eax
2264         subl    $foo@TPOFF, %eax
2265         leal    foo@NTPOFF(%ecx), %eax'
2266         tls_first_major=2
2267         tls_first_minor=14
2268         tls_as_opt=--fatal-warnings
2269         ;;
2270   x86_64-*-*)
2271     conftest_s='
2272         .section ".tdata","awT",@progbits
2273 foo:    .long   25
2274         .text
2275         movq    %fs:0, %rax
2276         leaq    foo@TLSGD(%rip), %rdi
2277         leaq    foo@TLSLD(%rip), %rdi
2278         leaq    foo@DTPOFF(%rax), %rdx
2279         movq    foo@GOTTPOFF(%rip), %rax
2280         movq    $foo@TPOFF, %rax'
2281         tls_first_major=2
2282         tls_first_minor=14
2283         tls_as_opt=--fatal-warnings
2284         ;;
2285   ia64-*-*)
2286     conftest_s='
2287         .section ".tdata","awT",@progbits
2288 foo:    data8   25
2289         .text
2290         addl    r16 = @ltoff(@dtpmod(foo#)), gp
2291         addl    r17 = @ltoff(@dtprel(foo#)), gp
2292         addl    r18 = @ltoff(@tprel(foo#)), gp
2293         addl    r19 = @dtprel(foo#), gp
2294         adds    r21 = @dtprel(foo#), r13
2295         movl    r23 = @dtprel(foo#)
2296         addl    r20 = @tprel(foo#), gp
2297         adds    r22 = @tprel(foo#), r13
2298         movl    r24 = @tprel(foo#)'
2299         tls_first_major=2
2300         tls_first_minor=13
2301         tls_as_opt=--fatal-warnings
2302         ;;
2303   mips*-*-*)
2304     conftest_s='
2305         .section .tdata,"awT",@progbits
2306 x:
2307         .word 2
2308         .text
2309         addiu $4, $28, %tlsgd(x)
2310         addiu $4, $28, %tlsldm(x)
2311         lui $4, %dtprel_hi(x)
2312         addiu $4, $4, %dtprel_lo(x)
2313         lw $4, %gottprel(x)($28)
2314         lui $4, %tprel_hi(x)
2315         addiu $4, $4, %tprel_lo(x)'
2316         tls_first_major=2
2317         tls_first_minor=16
2318         tls_as_opt='-32 --fatal-warnings'
2319         ;;
2320   powerpc-*-*)
2321     conftest_s='
2322         .section ".tdata","awT",@progbits
2323         .align 2
2324 ld0:    .space 4
2325 ld1:    .space 4
2326 x1:     .space 4
2327 x2:     .space 4
2328 x3:     .space 4
2329         .text
2330         addi 3,31,ld0@got@tlsgd
2331         bl __tls_get_addr
2332         addi 3,31,x1@got@tlsld
2333         bl __tls_get_addr
2334         addi 9,3,x1@dtprel
2335         addis 9,3,x2@dtprel@ha
2336         addi 9,9,x2@dtprel@l
2337         lwz 9,x3@got@tprel(31)
2338         add 9,9,x@tls
2339         addi 9,2,x1@tprel
2340         addis 9,2,x2@tprel@ha
2341         addi 9,9,x2@tprel@l'
2342         tls_first_major=2
2343         tls_first_minor=14
2344         tls_as_opt="-a32 --fatal-warnings"
2345         ;;
2346   powerpc64-*-*)
2347     conftest_s='
2348         .section ".tdata","awT",@progbits
2349         .align 3
2350 ld0:    .space 8
2351 ld1:    .space 8
2352 x1:     .space 8
2353 x2:     .space 8
2354 x3:     .space 8
2355         .text
2356         addi 3,2,ld0@got@tlsgd
2357         bl .__tls_get_addr
2358         nop
2359         addi 3,2,ld1@toc
2360         bl .__tls_get_addr
2361         nop
2362         addi 3,2,x1@got@tlsld
2363         bl .__tls_get_addr
2364         nop
2365         addi 9,3,x1@dtprel
2366         bl .__tls_get_addr
2367         nop
2368         addis 9,3,x2@dtprel@ha
2369         addi 9,9,x2@dtprel@l
2370         bl .__tls_get_addr
2371         nop
2372         ld 9,x3@got@dtprel(2)
2373         add 9,9,3
2374         bl .__tls_get_addr
2375         nop'
2376         tls_first_major=2
2377         tls_first_minor=14
2378         tls_as_opt="-a64 --fatal-warnings"
2379         ;;
2380   s390-*-*)
2381     conftest_s='
2382         .section ".tdata","awT",@progbits
2383 foo:    .long   25
2384         .text
2385         .long   foo@TLSGD
2386         .long   foo@TLSLDM
2387         .long   foo@DTPOFF
2388         .long   foo@NTPOFF
2389         .long   foo@GOTNTPOFF
2390         .long   foo@INDNTPOFF
2391         l       %r1,foo@GOTNTPOFF(%r12)
2392         l       %r1,0(%r1):tls_load:foo
2393         bas     %r14,0(%r1,%r13):tls_gdcall:foo
2394         bas     %r14,0(%r1,%r13):tls_ldcall:foo'
2395         tls_first_major=2
2396         tls_first_minor=14
2397         tls_as_opt="-m31 --fatal-warnings"
2398         ;;
2399   s390x-*-*)
2400     conftest_s='
2401         .section ".tdata","awT",@progbits
2402 foo:    .long   25
2403         .text
2404         .quad   foo@TLSGD
2405         .quad   foo@TLSLDM
2406         .quad   foo@DTPOFF
2407         .quad   foo@NTPOFF
2408         .quad   foo@GOTNTPOFF
2409         lg      %r1,foo@GOTNTPOFF(%r12)
2410         larl    %r1,foo@INDNTPOFF
2411         brasl   %r14,__tls_get_offset@PLT:tls_gdcall:foo
2412         brasl   %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2413         tls_first_major=2
2414         tls_first_minor=14
2415         tls_as_opt="-m64 -Aesame --fatal-warnings"
2416         ;;
2417   sh-*-* | sh[34]-*-*)
2418     conftest_s='
2419         .section ".tdata","awT",@progbits
2420 foo:    .long   25
2421         .text
2422         .long   foo@TLSGD
2423         .long   foo@TLSLDM
2424         .long   foo@DTPOFF
2425         .long   foo@GOTTPOFF
2426         .long   foo@TPOFF'
2427         tls_first_major=2
2428         tls_first_minor=13
2429         tls_as_opt=--fatal-warnings
2430         ;;
2431   sparc*-*-*)
2432     case "$target" in
2433       sparc*-sun-solaris2.*)
2434         on_solaris=yes
2435         ;;
2436       *)
2437         on_solaris=no
2438         ;;
2439     esac
2440     if test x$on_solaris = xyes && test x$gas_flag = xno; then
2441       conftest_s='
2442         .section ".tdata",#alloc,#write,#tls
2443 foo:    .long   25
2444         .text
2445         sethi   %tgd_hi22(foo), %o0
2446         add     %o0, %tgd_lo10(foo), %o1
2447         add     %l7, %o1, %o0, %tgd_add(foo)
2448         call    __tls_get_addr, %tgd_call(foo)
2449         sethi   %tldm_hi22(foo), %l1
2450         add     %l1, %tldm_lo10(foo), %l2
2451         add     %l7, %l2, %o0, %tldm_add(foo)
2452         call    __tls_get_addr, %tldm_call(foo)
2453         sethi   %tldo_hix22(foo), %l3
2454         xor     %l3, %tldo_lox10(foo), %l4
2455         add     %o0, %l4, %l5, %tldo_add(foo)
2456         sethi   %tie_hi22(foo), %o3
2457         add     %o3, %tie_lo10(foo), %o3
2458         ld      [%l7 + %o3], %o2, %tie_ld(foo)
2459         add     %g7, %o2, %o4, %tie_add(foo)
2460         sethi   %tle_hix22(foo), %l1
2461         xor     %l1, %tle_lox10(foo), %o5
2462         ld      [%g7 + %o5], %o1'
2463         tls_first_major=0
2464         tls_first_minor=0
2465     else
2466       conftest_s='
2467         .section ".tdata","awT",@progbits
2468 foo:    .long   25
2469         .text
2470         sethi   %tgd_hi22(foo), %o0
2471         add     %o0, %tgd_lo10(foo), %o1
2472         add     %l7, %o1, %o0, %tgd_add(foo)
2473         call    __tls_get_addr, %tgd_call(foo)
2474         sethi   %tldm_hi22(foo), %l1
2475         add     %l1, %tldm_lo10(foo), %l2
2476         add     %l7, %l2, %o0, %tldm_add(foo)
2477         call    __tls_get_addr, %tldm_call(foo)
2478         sethi   %tldo_hix22(foo), %l3
2479         xor     %l3, %tldo_lox10(foo), %l4
2480         add     %o0, %l4, %l5, %tldo_add(foo)
2481         sethi   %tie_hi22(foo), %o3
2482         add     %o3, %tie_lo10(foo), %o3
2483         ld      [%l7 + %o3], %o2, %tie_ld(foo)
2484         add     %g7, %o2, %o4, %tie_add(foo)
2485         sethi   %tle_hix22(foo), %l1
2486         xor     %l1, %tle_lox10(foo), %o5
2487         ld      [%g7 + %o5], %o1'
2488         tls_first_major=2
2489         tls_first_minor=14
2490         tls_as_opt="-32 --fatal-warnings"
2491       fi
2492         ;;
2493 changequote([,])dnl
2494 esac
2495 if test -z "$tls_first_major"; then
2496   : # If we don't have a check, assume no support.
2497 else
2498   gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2499   [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2500   [AC_DEFINE(HAVE_AS_TLS, 1,
2501             [Define if your assembler supports thread-local storage.])])
2502 fi
2503
2504 # Target-specific assembler checks.
2505
2506 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2507 gcc_cv_ld_static_dynamic=no
2508 if test $in_tree_ld = yes ; then
2509   if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2510     gcc_cv_ld_static_dynamic=yes
2511   fi
2512 elif test x$gcc_cv_ld != x; then
2513         # Check if linker supports -Bstatic/-Bdynamic option
2514         if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2515           && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2516                 gcc_cv_ld_static_dynamic=yes
2517         fi
2518 fi
2519 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2520         AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2521 [Define if your linker supports -Bstatic/-Bdynamic option.])
2522 fi
2523 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2524
2525 if test x"$demangler_in_ld" = xyes; then
2526   AC_MSG_CHECKING(linker --demangle support)
2527   gcc_cv_ld_demangle=no
2528   if test $in_tree_ld = yes; then
2529     if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2530       gcc_cv_ld_demangle=yes
2531     fi
2532   elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2533     # Check if the GNU linker supports --demangle option
2534     if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2535       gcc_cv_ld_demangle=yes
2536     fi
2537   fi
2538   if test x"$gcc_cv_ld_demangle" = xyes; then
2539     AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2540 [Define if your linker supports --demangle option.])
2541   fi
2542   AC_MSG_RESULT($gcc_cv_ld_demangle)
2543 fi
2544
2545 case "$target" in
2546   # All TARGET_ABI_OSF targets.
2547   alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2548     gcc_GAS_CHECK_FEATURE([explicit relocation support],
2549         gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2550 [       .set nomacro
2551         .text
2552         extbl   $3, $2, $3      !lituse_bytoff!1
2553         ldq     $2, a($29)      !literal!1
2554         ldq     $4, b($29)      !literal!2
2555         ldq_u   $3, 0($2)       !lituse_base!1
2556         ldq     $27, f($29)     !literal!5
2557         jsr     $26, ($27), f   !lituse_jsr!5
2558         ldah    $29, 0($26)     !gpdisp!3
2559         lda     $0, c($29)      !gprel
2560         ldah    $1, d($29)      !gprelhigh
2561         lda     $1, d($1)       !gprellow
2562         lda     $29, 0($29)     !gpdisp!3],,
2563     [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2564   [Define if your assembler supports explicit relocations.])])
2565     gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2566         gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2567 [       .set nomacro
2568         .text
2569         ldq     $27, a($29)     !literal!1
2570         jsr     $26, ($27), a   !lituse_jsrdirect!1],,
2571     [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2572   [Define if your assembler supports the lituse_jsrdirect relocation.])])
2573     ;;
2574
2575   cris-*-*)
2576     gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2577       gcc_cv_as_cris_no_mul_bug,[2,15,91],
2578       [-no-mul-bug-abort], [.text],,
2579       [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2580                 [Define if your assembler supports the -no-mul-bug-abort option.])])
2581     ;;
2582
2583   sparc*-*-*)
2584     gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2585       [.register %g2, #scratch],,
2586       [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2587                 [Define if your assembler supports .register.])])
2588
2589     gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2590       [-relax], [.text],,
2591       [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2592                 [Define if your assembler supports -relax option.])])
2593
2594     gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2595       gcc_cv_as_sparc_ua_pcrel,,
2596       [-K PIC],
2597 [.text
2598 foo:
2599         nop
2600 .data
2601 .align 4
2602 .byte 0
2603 .uaword %r_disp32(foo)],
2604       [if test x$gcc_cv_ld != x \
2605        && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2606          gcc_cv_as_sparc_ua_pcrel=yes
2607        fi
2608        rm -f conftest],
2609       [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2610                 [Define if your assembler and linker support unaligned PC relative relocs.])
2611
2612       gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2613         gcc_cv_as_sparc_ua_pcrel_hidden,,
2614         [-K PIC],
2615 [.data
2616 .align 4
2617 .byte 0x31
2618 .uaword %r_disp32(foo)
2619 .byte 0x32, 0x33, 0x34
2620 .global foo
2621 .hidden foo
2622 foo:
2623 .skip 4],
2624         [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2625          && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2626          && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2627             | grep ' 31000000 07323334' > /dev/null 2>&1; then
2628             if $gcc_cv_objdump -R conftest 2> /dev/null \
2629                | grep 'DISP32' > /dev/null 2>&1; then
2630                 :
2631             else
2632                 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2633             fi
2634          fi
2635          rm -f conftest],
2636          [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2637                    [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2638     ]) # unaligned pcrel relocs
2639
2640     gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2641       gcc_cv_as_sparc_offsetable_lo10,,
2642       [-xarch=v9],
2643 [.text
2644         or %g1, %lo(ab) + 12, %g1
2645         or %g1, %lo(ab + 12), %g1],
2646       [if test x$gcc_cv_objdump != x \
2647        && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2648           | grep ' 82106000 82106000' > /dev/null 2>&1; then
2649          gcc_cv_as_sparc_offsetable_lo10=yes
2650        fi],
2651        [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2652                  [Define if your assembler supports offsetable %lo().])])
2653     ;;
2654
2655 changequote(,)dnl
2656   i[34567]86-*-* | x86_64-*-*)
2657 changequote([,])dnl
2658     case $target_os in
2659       cygwin* | pe | mingw32*)
2660         # Used for DWARF 2 in PE
2661         gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2662           gcc_cv_as_ix86_pe_secrel32,
2663           [2,15,91],,
2664 [.text
2665 foo:    nop
2666 .data
2667         .secrel32 foo],
2668           [if test x$gcc_cv_ld != x \
2669            && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2670              gcc_cv_as_ix86_pe_secrel32=yes
2671            fi
2672            rm -f conftest],
2673           [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2674             [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2675         ;;
2676     esac
2677
2678     gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2679        gcc_cv_as_ix86_filds_fists,
2680       [2,9,0],, [filds mem; fists mem],,
2681       [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2682         [Define if your assembler uses the new HImode fild and fist notation.])])
2683
2684     gcc_GAS_CHECK_FEATURE([cmov syntax],
2685       gcc_cv_as_ix86_cmov_sun_syntax,,,
2686       [cmovl.l %edx, %eax],,
2687       [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2688         [Define if your assembler supports the Sun syntax for cmov.])])
2689
2690     # This one is used unconditionally by i386.[ch]; it is to be defined
2691     # to 1 if the feature is present, 0 otherwise.
2692     gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2693         gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2694 [       .text
2695 .L0:
2696         nop
2697         .data
2698         .long .L0@GOTOFF])
2699     AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2700       [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2701       [Define true if the assembler supports '.long foo@GOTOFF'.])
2702     ;;
2703
2704   ia64*-*-*)
2705     gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2706         gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2707 [       .text
2708         addl r15 = @ltoffx(x#), gp
2709         ;;
2710         ld8.mov r16 = [[r15]], x#],,
2711     [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2712           [Define if your assembler supports ltoffx and ldxmov relocations.])])
2713
2714     ;;
2715
2716   powerpc*-*-*)
2717     case $target in
2718       *-*-aix*) conftest_s='    .machine "pwr5"
2719         .csect .text[[PR]]
2720         mfcr 3,128';;
2721       *-*-darwin*)
2722         gcc_GAS_CHECK_FEATURE([.machine directive support],
2723           gcc_cv_as_machine_directive,,,
2724           [     .machine ppc7400])
2725         if test x$gcc_cv_as_machine_directive != xyes; then
2726           echo "*** This target requires an assembler supporting \".machine\"" >&2
2727           echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2728           test x$build = x$target && exit 1
2729         fi
2730         conftest_s='    .text
2731         mfcr r3,128';;
2732       *) conftest_s='   .machine power4
2733         .text
2734         mfcr 3,128';;
2735     esac
2736
2737     gcc_GAS_CHECK_FEATURE([mfcr field support],
2738       gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2739       [$conftest_s],,
2740       [AC_DEFINE(HAVE_AS_MFCRF, 1,
2741           [Define if your assembler supports mfcr field.])])
2742
2743     case $target in
2744       *-*-aix*) conftest_s='    .machine "pwr5"
2745         .csect .text[[PR]]
2746         popcntb 3,3';;
2747       *) conftest_s='   .machine power5
2748         .text
2749         popcntb 3,3';;
2750     esac
2751
2752     gcc_GAS_CHECK_FEATURE([popcntb support],
2753       gcc_cv_as_powerpc_popcntb, [2,17,0],,
2754       [$conftest_s],,
2755       [AC_DEFINE(HAVE_AS_POPCNTB, 1,
2756           [Define if your assembler supports popcntb field.])])
2757
2758     case $target in
2759       *-*-aix*) conftest_s='    .csect .text[[PR]]
2760 LCF..0:
2761         addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
2762       *-*-darwin*)
2763         conftest_s='    .text
2764 LCF0:
2765         addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
2766       *) conftest_s='   .text
2767 .LCF0:
2768         addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
2769     esac
2770
2771     gcc_GAS_CHECK_FEATURE([rel16 relocs],
2772       gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
2773       [$conftest_s],,
2774       [AC_DEFINE(HAVE_AS_REL16, 1,
2775           [Define if your assembler supports R_PPC_REL16 relocs.])])
2776     ;;
2777
2778   mips*-*-*)
2779     gcc_GAS_CHECK_FEATURE([explicit relocation support],
2780       gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2781 [       lw $4,%gp_rel(foo)($4)],,
2782       [if test x$target_cpu_default = x
2783        then target_cpu_default=MASK_EXPLICIT_RELOCS
2784        else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2785        fi])
2786
2787     if test x$gas_flag = xyes \
2788        || test x"$host" != x"$build" \
2789        || test ! -x "$gcc_cv_as" \
2790        || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2791       :
2792     else
2793       echo "*** This configuration requires the GNU assembler" >&2
2794       exit 1
2795     fi
2796     ;;
2797 esac
2798 # ??? Not all targets support dwarf2 debug_line, even within a version
2799 # of gas.  Moreover, we need to emit a valid instruction to trigger any
2800 # info to the output file.  So, as supported targets are added to gas 2.11,
2801 # add some instruction here to (also) show we expect this might work.
2802 # ??? Once 2.11 is released, probably need to add first known working
2803 # version to the per-target configury.
2804 case "$target" in
2805   i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2806   | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2807   | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2808     insn="nop"
2809     ;;
2810   ia64*-*-* | s390*-*-*)
2811     insn="nop 0"
2812     ;;
2813   mmix-*-*)
2814     insn="swym 0"
2815     ;;
2816 esac
2817 if test x"$insn" != x; then
2818  conftest_s="\
2819         .file 1 \"conftest.s\"
2820         .loc 1 3 0
2821         $insn"
2822  gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2823   gcc_cv_as_dwarf2_debug_line,
2824   [elf,2,11,0],, [$conftest_s],
2825   [if test x$gcc_cv_objdump != x \
2826    && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2827       | grep debug_line > /dev/null 2>&1; then
2828      gcc_cv_as_dwarf2_debug_line=yes
2829    fi])
2830
2831 # The .debug_line file table must be in the exact order that
2832 # we specified the files, since these indices are also used
2833 # by DW_AT_decl_file.  Approximate this test by testing if
2834 # the assembler bitches if the same index is assigned twice.
2835  gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2836   gcc_cv_as_dwarf2_file_buggy,,,
2837 [       .file 1 "foo.s"
2838         .file 1 "bar.s"])
2839
2840  if test $gcc_cv_as_dwarf2_debug_line = yes \
2841  && test $gcc_cv_as_dwarf2_file_buggy = no; then
2842         AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2843   [Define if your assembler supports dwarf2 .file/.loc directives,
2844    and preserves file table indices exactly as given.])
2845  fi
2846
2847  gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2848   gcc_cv_as_gdwarf2_flag,
2849   [elf,2,11,0], [--gdwarf2], [$insn],,
2850   [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2851 [Define if your assembler supports the --gdwarf2 option.])])
2852
2853  gcc_GAS_CHECK_FEATURE([--gstabs option],
2854   gcc_cv_as_gstabs_flag,
2855   [elf,2,11,0], [--gstabs], [$insn],
2856   [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2857    # and warns about it, but still exits successfully.  So check for
2858    # this.
2859    if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2860    then :
2861    else gcc_cv_as_gstabs_flag=yes
2862    fi],
2863   [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2864 [Define if your assembler supports the --gstabs option.])])
2865 fi
2866
2867 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2868 gcc_cv_ld_ro_rw_mix=unknown
2869 if test $in_tree_ld = yes ; then
2870   if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2871      && test $in_tree_ld_is_elf = yes; then
2872     gcc_cv_ld_ro_rw_mix=read-write
2873   fi
2874 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2875   echo '.section myfoosect, "a"' > conftest1.s
2876   echo '.section myfoosect, "aw"' > conftest2.s
2877   echo '.byte 1' >> conftest2.s
2878   echo '.section myfoosect, "a"' > conftest3.s
2879   echo '.byte 0' >> conftest3.s
2880   if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2881      && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2882      && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2883      && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2884         conftest2.o conftest3.o > /dev/null 2>&1; then
2885     gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2886                          | sed -e '/myfoosect/!d' -e N`
2887     if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2888       if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2889         gcc_cv_ld_ro_rw_mix=read-only
2890       else
2891         gcc_cv_ld_ro_rw_mix=read-write
2892       fi
2893     fi
2894   fi
2895 changequote(,)dnl
2896   rm -f conftest.* conftest[123].*
2897 changequote([,])dnl
2898 fi
2899 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2900         AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2901   [Define if your linker links a mix of read-only
2902    and read-write sections into a read-write section.])
2903 fi
2904 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2905
2906 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2907 gcc_cv_ld_eh_frame_hdr=no
2908 if test $in_tree_ld = yes ; then
2909   if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2910      && test $in_tree_ld_is_elf = yes; then
2911     gcc_cv_ld_eh_frame_hdr=yes
2912   fi
2913 elif test x$gcc_cv_ld != x; then
2914         # Check if linker supports --eh-frame-hdr option
2915         if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2916                 gcc_cv_ld_eh_frame_hdr=yes
2917         fi
2918 fi
2919 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
2920 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2921         AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2922 [Define if your linker supports --eh-frame-hdr option.])
2923 fi
2924 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2925
2926 AC_MSG_CHECKING(linker position independent executable support)
2927 gcc_cv_ld_pie=no
2928 if test $in_tree_ld = yes ; then
2929   if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2930      && test $in_tree_ld_is_elf = yes; then
2931     gcc_cv_ld_pie=yes
2932   fi
2933 elif test x$gcc_cv_ld != x; then
2934         # Check if linker supports -pie option
2935         if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2936                 gcc_cv_ld_pie=yes
2937         fi
2938 fi
2939 if test x"$gcc_cv_ld_pie" = xyes; then
2940         AC_DEFINE(HAVE_LD_PIE, 1,
2941 [Define if your linker supports -pie option.])
2942 fi
2943 AC_MSG_RESULT($gcc_cv_ld_pie)
2944
2945 # --------
2946 # UNSORTED
2947 # --------
2948
2949 AC_CACHE_CHECK(linker --as-needed support,
2950 gcc_cv_ld_as_needed,
2951 [gcc_cv_ld_as_needed=no
2952 if test $in_tree_ld = yes ; then
2953   if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2954      && test $in_tree_ld_is_elf = yes; then
2955     gcc_cv_ld_as_needed=yes
2956   fi
2957 elif test x$gcc_cv_ld != x; then
2958         # Check if linker supports --as-needed and --no-as-needed options
2959         if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2960                 gcc_cv_ld_as_needed=yes
2961         fi
2962 fi
2963 ])
2964 if test x"$gcc_cv_ld_as_needed" = xyes; then
2965         AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2966 [Define if your linker supports --as-needed and --no-as-needed options.])
2967 fi
2968
2969 case "$target" in
2970   powerpc64*-*-linux*)
2971     AC_CACHE_CHECK(linker support for omitting dot symbols,
2972     gcc_cv_ld_no_dot_syms,
2973     [gcc_cv_ld_no_dot_syms=no
2974     if test $in_tree_ld = yes ; then
2975       if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
2976         gcc_cv_ld_no_dot_syms=yes
2977       fi
2978     elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
2979       cat > conftest1.s <<EOF
2980         .text
2981         bl .foo
2982 EOF
2983       cat > conftest2.s <<EOF
2984         .section ".opd","aw"
2985         .align 3
2986         .globl foo
2987         .type foo,@function
2988 foo:
2989         .quad .LEfoo,.TOC.@tocbase,0
2990         .text
2991 .LEfoo:
2992         blr
2993         .size foo,.-.LEfoo
2994 EOF
2995       if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
2996          && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
2997          && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
2998         gcc_cv_ld_no_dot_syms=yes
2999       fi
3000       rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3001     fi
3002     ])
3003     if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3004       AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3005     [Define if your PowerPC64 linker only needs function descriptor syms.])
3006     fi
3007     ;;
3008 esac
3009
3010 AC_CACHE_CHECK(linker --sysroot support,
3011   gcc_cv_ld_sysroot,
3012   [gcc_cv_ld_sysroot=no
3013   if test $in_tree_ld = yes ; then
3014       if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
3015         gcc_cv_ld_sysroot=yes
3016       fi
3017   elif test x$gcc_cv_ld != x; then
3018     if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3019       gcc_cv_ld_sysroot=yes
3020     fi
3021   fi])
3022 if test x"$gcc_cv_ld_sysroot" = xyes; then
3023   AC_DEFINE(HAVE_LD_SYSROOT, 1,
3024   [Define if your linker supports --sysroot.])
3025 fi
3026
3027 if test x$with_sysroot = x && test x$host = x$target \
3028    && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3029   AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3030 [Define to PREFIX/include if cpp should also search that directory.])
3031 fi
3032
3033 # Test for stack protector support in target C library.
3034 case "$target" in
3035   *-*-linux*)
3036     AC_CACHE_CHECK(__stack_chk_fail in target GNU C library,
3037       gcc_cv_libc_provides_ssp,
3038       [gcc_cv_libc_provides_ssp=no
3039       if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3040         if test "x$with_sysroot" = x; then
3041           glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3042         elif test "x$with_sysroot" = xyes; then
3043           glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3044         else
3045           glibc_header_dir="${with_sysroot}/usr/include"
3046         fi
3047       else
3048         glibc_header_dir=/usr/include
3049       fi
3050       # glibc 2.4 and later provides __stack_chk_fail and
3051       # either __stack_chk_guard, or TLS access to stack guard canary.
3052       if test -f $glibc_header_dir/features.h \
3053          && $EGREP '^@<:@       @:>@*#[         ]*define[       ]+__GNU_LIBRARY__[      ]+([1-9][0-9]|[6-9])' \
3054             $glibc_header_dir/features.h > /dev/null; then
3055         if $EGREP '^@<:@        @:>@*#[         ]*define[       ]+__GLIBC__[    ]+([1-9][0-9]|[3-9])' \
3056            $glibc_header_dir/features.h > /dev/null; then
3057           gcc_cv_libc_provides_ssp=yes
3058         elif $EGREP '^@<:@      @:>@*#[         ]*define[       ]+__GLIBC__[    ]+2' \
3059              $glibc_header_dir/features.h > /dev/null \
3060              && $EGREP '^@<:@   @:>@*#[         ]*define[       ]+__GLIBC_MINOR__[      ]+([1-9][0-9]|[4-9])' \
3061              $glibc_header_dir/features.h > /dev/null; then
3062           gcc_cv_libc_provides_ssp=yes
3063         fi
3064       fi]) ;;
3065   *) gcc_cv_libc_provides_ssp=no ;;
3066 esac
3067 if test x$gcc_cv_libc_provides_ssp = xyes; then
3068   AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
3069             [Define if your target C library provides stack protector support])
3070 fi
3071
3072 # Find out what GC implementation we want, or may, use.
3073 AC_ARG_WITH(gc,
3074 [  --with-gc={page,zone}   choose the garbage collection mechanism to use
3075                           with the compiler],
3076 [case "$withval" in
3077   page)
3078     GGC=ggc-$withval
3079     ;;
3080   zone)
3081     GGC=ggc-$withval
3082     AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3083     ;;
3084   *)
3085     AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3086     ;;
3087 esac],
3088 [GGC=ggc-page])
3089 AC_SUBST(GGC)
3090 echo "Using $GGC for garbage collection."
3091
3092 # Use the system's zlib library.
3093 zlibdir=-L../zlib
3094 zlibinc="-I\$(srcdir)/../zlib"
3095 AC_ARG_WITH(system-zlib,
3096 [  --with-system-zlib      use installed libz],
3097 zlibdir=
3098 zlibinc=
3099 )
3100 AC_SUBST(zlibdir)
3101 AC_SUBST(zlibinc)
3102
3103 dnl Very limited version of automake's enable-maintainer-mode
3104
3105 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3106   dnl maintainer-mode is disabled by default
3107   AC_ARG_ENABLE(maintainer-mode,
3108 [  --enable-maintainer-mode
3109                           enable make rules and dependencies not useful
3110                           (and sometimes confusing) to the casual installer],
3111       maintainer_mode=$enableval,
3112       maintainer_mode=no)
3113
3114 AC_MSG_RESULT($maintainer_mode)
3115
3116 if test "$maintainer_mode" = "yes"; then
3117   MAINT=''
3118 else
3119   MAINT='#'
3120 fi
3121 AC_SUBST(MAINT)dnl
3122
3123 # --------------
3124 # Language hooks
3125 # --------------
3126
3127 # Make empty files to contain the specs and options for each language.
3128 # Then add #include lines to for a compiler that has specs and/or options.
3129
3130 lang_opt_files=
3131 lang_specs_files=
3132 lang_tree_files=
3133 for subdir in . $subdirs
3134 do
3135         if test -f $srcdir/$subdir/lang.opt; then
3136             lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3137         fi
3138         if test -f $srcdir/$subdir/lang-specs.h; then
3139             lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3140         fi
3141         if test -f $srcdir/$subdir/$subdir-tree.def; then
3142             lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3143         fi
3144 done
3145
3146 # These (without "all_") are set in each config-lang.in.
3147 # `language' must be a single word so is spelled singularly.
3148 all_languages=
3149 all_boot_languages=
3150 all_compilers=
3151 all_stagestuff=
3152 all_outputs='Makefile gccbug mklibgcc libada-mk'
3153 # List of language makefile fragments.
3154 all_lang_makefrags=
3155 # List of language subdirectory makefiles.  Deprecated.
3156 all_lang_makefiles=
3157 # Files for gengtype
3158 all_gtfiles="$target_gtfiles"
3159 # Files for gengtype with language
3160 all_gtfiles_files_langs=
3161 all_gtfiles_files_files=
3162
3163 # Add the language fragments.
3164 # Languages are added via two mechanisms.  Some information must be
3165 # recorded in makefile variables, these are defined in config-lang.in.
3166 # We accumulate them and plug them into the main Makefile.
3167 # The other mechanism is a set of hooks for each of the main targets
3168 # like `clean', `install', etc.
3169
3170 language_hooks="Make-hooks"
3171
3172 for s in $subdirs
3173 do
3174                 language=
3175                 boot_language=
3176                 compilers=
3177                 stagestuff=
3178                 outputs=
3179                 gtfiles=
3180                 . ${srcdir}/$s/config-lang.in
3181                 if test "x$language" = x
3182                 then
3183                         echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3184                         exit 1
3185                 fi
3186                 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3187                 if test -f ${srcdir}/$s/Makefile.in
3188                 then all_lang_makefiles="$s/Makefile"
3189                 fi
3190                 all_languages="$all_languages $language"
3191                 if test "x$boot_language" = xyes
3192                 then
3193                         all_boot_languages="$all_boot_languages $language"
3194                 fi
3195                 all_compilers="$all_compilers $compilers"
3196                 all_stagestuff="$all_stagestuff $stagestuff"
3197                 all_outputs="$all_outputs $outputs"
3198                 all_gtfiles="$all_gtfiles $gtfiles"
3199                 for f in $gtfiles
3200                 do
3201                          all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3202                          all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3203                 done
3204 done
3205
3206 # Pick up gtfiles for c
3207 gtfiles=
3208 s="c"
3209 . ${srcdir}/c-config-lang.in
3210 all_gtfiles="$all_gtfiles $gtfiles"
3211 for f in $gtfiles
3212 do
3213         all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3214         all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3215 done
3216
3217 check_languages=
3218 for language in $all_languages
3219 do
3220                 check_languages="$check_languages check-$language"
3221 done
3222
3223 # We link each language in with a set of hooks, reached indirectly via
3224 # lang.${target}.
3225
3226 rm -f Make-hooks
3227 touch Make-hooks
3228 target_list="all.build all.cross start.encap rest.encap tags \
3229         install-normal install-common install-man \
3230         uninstall info man srcextra srcman srcinfo \
3231         mostlyclean clean distclean maintainer-clean \
3232         stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3233 for t in $target_list
3234 do
3235         x=
3236         for lang in $all_languages
3237         do
3238                         x="$x $lang.$t"
3239         done
3240         echo "lang.$t: $x" >> Make-hooks
3241 done
3242
3243 # --------
3244 # UNSORTED
3245 # --------
3246
3247 # Create .gdbinit.
3248
3249 echo "dir ." > .gdbinit
3250 echo "dir ${srcdir}" >> .gdbinit
3251 if test x$gdb_needs_out_file_path = xyes
3252 then
3253         echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3254 fi
3255 if test "x$subdirs" != x; then
3256         for s in $subdirs
3257         do
3258                 echo "dir ${srcdir}/$s" >> .gdbinit
3259         done
3260 fi
3261 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3262
3263 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3264 # absolute path for gcc_tooldir based on inserting the number of up-directory
3265 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3266 # $(libsubdir)/@(unlibsubdir) based path.
3267 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3268 # make and thus we'd get different behavior depending on where we built the
3269 # sources.
3270 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3271     gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3272 else
3273 changequote(<<, >>)dnl
3274 # An explanation of the sed strings:
3275 #  -e 's|^\$(prefix)||'   matches and eliminates 'prefix' from 'exec_prefix'
3276 #  -e 's|/$||'            match a trailing forward slash and eliminates it
3277 #  -e 's|^[^/]|/|'        forces the string to start with a forward slash (*)
3278 #  -e 's|/[^/]*|../|g'    replaces each occurrence of /<directory> with ../
3279 #
3280 # (*) Note this pattern overwrites the first character of the string
3281 # with a forward slash if one is not already present.  This is not a
3282 # problem because the exact names of the sub-directories concerned is
3283 # unimportant, just the number of them matters.
3284 #
3285 # The practical upshot of these patterns is like this:
3286 #
3287 #  prefix     exec_prefix        result
3288 #  ------     -----------        ------
3289 #   /foo        /foo/bar          ../
3290 #   /foo/       /foo/bar          ../
3291 #   /foo        /foo/bar/         ../
3292 #   /foo/       /foo/bar/         ../
3293 #   /foo        /foo/bar/ugg      ../../
3294 #
3295     dollar='$$'
3296     gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3297 changequote([, ])dnl
3298 fi
3299 AC_SUBST(gcc_tooldir)
3300 AC_SUBST(dollar)
3301
3302 # Find a directory in which to install a shared libgcc.
3303
3304 AC_ARG_ENABLE(version-specific-runtime-libs,
3305 [  --enable-version-specific-runtime-libs
3306                           specify that runtime libraries should be
3307                           installed in a compiler-specific directory])
3308
3309 AC_ARG_WITH(slibdir,
3310 [  --with-slibdir=DIR      shared libraries in DIR [LIBDIR]],
3311 slibdir="$with_slibdir",
3312 if test "${enable_version_specific_runtime_libs+set}" = set; then
3313   slibdir='$(libsubdir)'
3314 elif test "$host" != "$target"; then
3315   slibdir='$(build_tooldir)/lib'
3316 else
3317   slibdir='$(libdir)'
3318 fi)
3319 AC_SUBST(slibdir)
3320
3321 objdir=`${PWDCMD-pwd}`
3322 AC_SUBST(objdir)
3323
3324 # Substitute configuration variables
3325 AC_SUBST(subdirs)
3326 AC_SUBST(srcdir)
3327 AC_SUBST(all_boot_languages)
3328 AC_SUBST(all_compilers)
3329 AC_SUBST(all_gtfiles)
3330 AC_SUBST(all_gtfiles_files_langs)
3331 AC_SUBST(all_gtfiles_files_files)
3332 AC_SUBST(all_lang_makefrags)
3333 AC_SUBST(all_lang_makefiles)
3334 AC_SUBST(all_languages)
3335 AC_SUBST(all_stagestuff)
3336 AC_SUBST(build_exeext)
3337 AC_SUBST(build_install_headers_dir)
3338 AC_SUBST(build_xm_file_list)
3339 AC_SUBST(build_xm_include_list)
3340 AC_SUBST(build_xm_defines)
3341 AC_SUBST(check_languages)
3342 AC_SUBST(cc_set_by_configure)
3343 AC_SUBST(quoted_cc_set_by_configure)
3344 AC_SUBST(cpp_install_dir)
3345 AC_SUBST(xmake_file)
3346 AC_SUBST(tmake_file)
3347 AC_SUBST(extra_gcc_objs)
3348 AC_SUBST(extra_headers_list)
3349 AC_SUBST(extra_objs)
3350 AC_SUBST(extra_parts)
3351 AC_SUBST(extra_passes)
3352 AC_SUBST(extra_programs)
3353 AC_SUBST(float_h_file)
3354 AC_SUBST(gcc_config_arguments)
3355 AC_SUBST(gcc_gxx_include_dir)
3356 AC_SUBST(libstdcxx_incdir)
3357 AC_SUBST(host_exeext)
3358 AC_SUBST(host_xm_file_list)
3359 AC_SUBST(host_xm_include_list)
3360 AC_SUBST(host_xm_defines)
3361 AC_SUBST(out_host_hook_obj)
3362 AC_SUBST(install)
3363 AC_SUBST(lang_opt_files)
3364 AC_SUBST(lang_specs_files)
3365 AC_SUBST(lang_tree_files)
3366 AC_SUBST(local_prefix)
3367 AC_SUBST(md_file)
3368 AC_SUBST(objc_boehm_gc)
3369 AC_SUBST(out_file)
3370 AC_SUBST(out_object_file)
3371 AC_SUBST(stage_prefix_set_by_configure)
3372 AC_SUBST(quoted_stage_prefix_set_by_configure)
3373 AC_SUBST(thread_file)
3374 AC_SUBST(tm_file_list)
3375 AC_SUBST(tm_include_list)
3376 AC_SUBST(tm_defines)
3377 AC_SUBST(tm_p_file_list)
3378 AC_SUBST(tm_p_include_list)
3379 AC_SUBST(xm_file_list)
3380 AC_SUBST(xm_include_list)
3381 AC_SUBST(xm_defines)
3382 AC_SUBST(c_target_objs)
3383 AC_SUBST(cxx_target_objs)
3384 AC_SUBST(target_cpu_default)
3385
3386 AC_SUBST_FILE(language_hooks)
3387
3388 # Echo link setup.
3389 if test x${build} = x${host} ; then
3390   if test x${host} = x${target} ; then
3391     echo "Links are now set up to build a native compiler for ${target}." 1>&2
3392   else
3393     echo "Links are now set up to build a cross-compiler" 1>&2
3394     echo " from ${host} to ${target}." 1>&2
3395   fi
3396 else
3397   if test x${host} = x${target} ; then
3398     echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3399     echo " for ${target}." 1>&2
3400   else
3401     echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3402     echo " from ${host} to ${target}." 1>&2
3403   fi
3404 fi
3405
3406 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3407 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3408
3409 # Configure the subdirectories
3410 # AC_CONFIG_SUBDIRS($subdirs)
3411
3412 # Create the Makefile
3413 # and configure language subdirectories
3414 AC_CONFIG_FILES($all_outputs)
3415
3416 AC_CONFIG_COMMANDS([default],
3417 [
3418 case ${CONFIG_HEADERS} in
3419   *auto-host.h:config.in*)
3420   echo > cstamp-h ;;
3421 esac
3422 # Make sure all the subdirs exist.
3423 for d in $subdirs doc build
3424 do
3425     test -d $d || mkdir $d
3426 done
3427 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3428 # bootstrapping and the installation procedure can still use
3429 # CC="stage1/xgcc -Bstage1/".  If the host doesn't support symlinks,
3430 # FLAGS_TO_PASS has been modified to solve the problem there.
3431 # This is virtually a duplicate of what happens in configure.lang; we do
3432 # an extra check to make sure this only happens if ln -s can be used.
3433 case "$LN_S" in
3434   *-s*)
3435     for d in ${subdirs} ; do
3436         STARTDIR=`${PWDCMD-pwd}`
3437         cd $d
3438         for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3439         do
3440                 rm -f $t
3441                 $LN_S ../$t $t 2>/dev/null
3442         done
3443         cd $STARTDIR
3444     done
3445   ;;
3446 esac
3447 ],
3448 [subdirs='$subdirs'])
3449 AC_OUTPUT