2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
5 # Free Software Foundation, Inc.
7 #This file is part of GCC.
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
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
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
24 # --------------------------------
25 # Initialization and sanity checks
26 # --------------------------------
30 AC_CONFIG_SRCDIR(tree.c)
31 AC_CONFIG_HEADER(auto-host.h:config.in)
33 gcc_version=`cat $srcdir/BASE-VER`
35 # Determine the host, build, and target systems
40 # Determine the noncanonical target name, for directory use.
41 ACX_NONCANONICAL_TARGET
43 # Determine the target- and build-specific subdirectories
46 # Set program_transform_name
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
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)
59 case ${LIBRARY_PATH} in
60 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
61 library_path_setting="contains current directory"
64 library_path_setting="ok"
68 AC_MSG_RESULT($library_path_setting)
69 if test "$library_path_setting" != "ok"; then
71 *** LIBRARY_PATH shouldn't contain the current directory when
72 *** building gcc. Please change the environment variable
73 *** and run configure again.])
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
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)
85 case ${GCC_EXEC_PREFIX} in
86 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
87 gcc_exec_prefix_setting="contains current directory"
90 gcc_exec_prefix_setting="ok"
94 AC_MSG_RESULT($gcc_exec_prefix_setting)
95 if test "$gcc_exec_prefix_setting" != "ok"; then
97 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
98 *** building gcc. Please change the environment variable
99 *** and run configure again.])
106 # Specify the local prefix
108 AC_ARG_WITH(local-prefix,
109 [ --with-local-prefix=DIR specifies directory to put local include],
110 [case "${withval}" in
111 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
113 *) local_prefix=$with_local_prefix ;;
116 # Default local prefix if it is empty
117 if test x$local_prefix = x; then
118 local_prefix=/usr/local
121 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
122 # passed in by the toplevel make and thus we'd get different behavior
123 # depending on where we built the sources.
125 # Specify the g++ header file directory
126 AC_ARG_WITH(gxx-include-dir,
127 [ --with-gxx-include-dir=DIR
128 specifies directory to put g++ header files],
129 [case "${withval}" in
130 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
132 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
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='${libsubdir}/include/c++'
139 libstdcxx_incdir='c++/$(version)'
140 changequote(<<, >>)dnl
141 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
146 AC_ARG_WITH(cpp_install_dir,
147 [ --with-cpp-install-dir=DIR
148 install the user visible C preprocessor in DIR
149 (relative to PREFIX) as well as PREFIX/bin],
150 [if test x$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
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
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=$enableval,
170 generated_files_in_srcdir=no)
172 AC_MSG_RESULT($generated_files_in_srcdir)
174 if test "$generated_files_in_srcdir" = "yes"; then
181 # -------------------
182 # Find default linker
183 # -------------------
187 [ --with-gnu-ld arrange to work with GNU ld.],
188 gnu_ld_flag="$with_gnu_ld",
191 # With pre-defined 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 $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
201 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
202 [Define to enable the use of a default linker.])
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 ($DEFAULT_LINKER)])
210 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
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="$with_demangler_in_ld",
222 # ----------------------
223 # Find default assembler
224 # ----------------------
228 [ --with-gnu-as arrange to work with GNU as],
229 gas_flag="$with_gnu_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 $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
241 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
242 [Define to enable the use of a default assembler.])
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 ($DEFAULT_ASSEMBLER)])
250 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
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.
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
269 # Find the native compiler
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
276 OUTPUT_OPTION='-o $@'
278 AC_SUBST(NO_MINUS_C_MINUS_O)
279 AC_SUBST(OUTPUT_OPTION)
281 # -------------------------
282 # Check C compiler features
283 # -------------------------
288 # sizeof(char) is 1 by definition.
289 AC_CHECK_SIZEOF(void *)
290 AC_CHECK_SIZEOF(short)
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)])
296 # ---------------------
297 # Warnings and checking
298 # ---------------------
300 # Check $CC warning features (if it's GCC).
301 # We want to use -pedantic, but we don't want warnings about
304 # So, we only use -pedantic if we can disable those warnings.
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"
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"
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"
334 # Add -Wold-style-definition if it's accepted
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"
345 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
346 strict1_warn="${strict1_warn} -Wold-style-definition"
349 # Add -Wmissing-format-attribute if it's accepted
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"
360 if test $ac_cv_prog_cc_w_missing_format_attribute = yes ; then
361 strict1_warn="${strict1_warn} -Wmissing-format-attribute"
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"
373 AC_SUBST(strict1_warn)
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
379 if test "x$GCC" = "xyes"; then
380 warn_cflags='$(GCC_WARN_CFLAGS)'
382 AC_SUBST(warn_cflags)
384 # Enable -Werror in bootstrap stage2 and later.
386 if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
389 AC_ARG_ENABLE(werror,
390 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
391 [if test x$is_release = x ; then
392 # Default to "yes" on development branches.
395 # Default to "no" on release branches.
398 if test x$enable_werror = xyes ; then
403 # Enable expensive internal checks
404 AC_ARG_ENABLE(checking,
405 [ --enable-checking[=LIST]
406 enable expensive run-time checks. With LIST,
407 enable only specific categories of checks.
408 Categories are: yes,no,all,none,release.
409 Flags are: assert,fold,gc,gcac,misc,
410 rtlflag,rtl,runtime,tree,valgrind.],
411 [ac_checking_flags="${enableval}"],[
412 # Determine the default checks.
413 if test x$is_release = x ; then
414 ac_checking_flags=yes
416 ac_checking_flags=release
422 ac_gc_always_collect=
425 ac_runtime_checking=1
427 ac_valgrind_checking=
428 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
429 for check in $ac_checking_flags
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 $check) ;;
470 if test x$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
476 AC_SUBST(nocommon_flag)
477 if test x$ac_assert_checking != x ; then
478 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
479 [Define if you want assertions enabled. This is a cheap check.])
481 GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING)
482 if test x$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.])
486 if test x$ac_tree_checking != x ; then
487 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
488 [Define if you want all operations on trees (the basic data
489 structure of the front ends) to be checked for dynamic type safety
490 at runtime. This is moderately expensive. The tree browser debugging
491 routines will also be enabled by this option.
493 TREEBROWSER=tree-browser.o
495 AC_SUBST(TREEBROWSER)
496 if test x$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.])
502 if test x$ac_rtlflag_checking != x ; then
503 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
504 [Define if you want RTL flag accesses to be checked against the RTL
505 codes that are supported for each access macro. This is relatively
508 if test x$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.])
513 if test x$ac_gc_always_collect != x ; then
514 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
515 [Define if you want the garbage collector to operate in maximally
516 paranoid mode, validating the entire heap and collecting garbage at
517 every opportunity. This is extremely expensive.])
519 if test x$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.])
524 valgrind_path_defines=
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)
532 if test x$ac_valgrind_checking != x ; then
533 # It is certainly possible that there's valgrind but no valgrind.h.
534 # GCC relies on making annotations so we must have both.
535 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
536 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
537 [[#include <valgrind/memcheck.h>
538 #ifndef VALGRIND_DISCARD
539 #error VALGRIND_DISCARD not defined
541 [gcc_cv_header_valgrind_memcheck_h=yes],
542 [gcc_cv_header_valgrind_memcheck_h=no])
543 AC_MSG_RESULT($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
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 $gcc_cv_header_valgrind_memcheck_h = no); then
559 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
561 valgrind_path_defines=-DVALGRIND_PATH='\"'$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.])
570 if test $gcc_cv_header_memcheck_h = yes; then
571 AC_DEFINE(HAVE_MEMCHECK_H, 1,
572 [Define if valgrind's memcheck.h header is installed.])
575 AC_SUBST(valgrind_path_defines)
576 AC_SUBST(valgrind_command)
578 AC_ARG_ENABLE(mapped-location,
579 [ --enable-mapped-location location_t is fileline integer cookie],,
580 enable_mapped_location=no)
582 if test "$enable_mapped_location" = yes ; then
583 AC_DEFINE(USE_MAPPED_LOCATION, 1,
584 [Define if location_t is fileline integer cookie.])
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,
595 [case "${enableval}" in
597 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
600 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
603 # a.k.a. --disable-coverage
607 AC_MSG_ERROR(unknown coverage setting $enableval)
611 AC_SUBST(coverage_flags)
613 AC_ARG_ENABLE(gather-detailed-mem-stats,
614 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
615 [enable_gather_detailed_mem_stats=no])
616 if test x$enable_gather_detailed_mem_stats = xyes ; then
617 AC_DEFINE(GATHER_STATISTICS, 1,
618 [Define to enable detailed memory allocation stats gathering.])
621 # -------------------------------
622 # Miscenalleous configure options
623 # -------------------------------
627 [ --with-stabs arrange to use stabs instead of host debug format],
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)
637 # Enable __cxa_atexit for C++.
638 AC_ARG_ENABLE(__cxa_atexit,
639 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
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],,
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$enable_objc_gc = xno; then
661 [ --with-dwarf2 force the default debug format to be DWARF 2],
662 dwarf2="$with_dwarf2",
665 AC_ARG_ENABLE(shared,
666 [ --disable-shared don't provide a shared libgcc],
668 case $enable_shared in
672 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
673 for pkg in $enableval; do
674 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
681 ], [enable_shared=yes])
682 AC_SUBST(enable_shared)
684 AC_ARG_WITH(build-sysroot,
685 [ --with-build-sysroot=sysroot
686 use sysroot as the system root during the build])
689 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
691 case ${with_sysroot} in
692 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
693 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
696 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
697 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
699 if test "x$exec_prefix" = xNONE; then
700 if test "x$prefix" = xNONE; then
701 test_prefix=/usr/local
706 test_prefix=$exec_prefix
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="$t"
717 TARGET_SYSTEM_ROOT_DEFINE=
718 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
720 AC_SUBST(TARGET_SYSTEM_ROOT)
721 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
722 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
724 # Build with intermodule optimisations
725 AC_ARG_ENABLE(intermodule,
726 [ --enable-intermodule build the compiler in one step],
727 [case ${enable_intermodule} in
728 yes) onestep="-onestep";;
734 # Sanity check enable_languages in case someone does not run the toplevel
735 # configure # script.
736 AC_ARG_ENABLE(languages,
737 [ --enable-languages=LIST specify which front-ends to build],
738 [case ,${enable_languages}, in
740 # go safe -- we cannot be much sure without the toplevel
742 # analysis of which target libs are present and usable
746 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
751 enable_languages=c,${enable_languages}
754 [enable_languages=c])
757 for lang in ${srcdir}/*/config-lang.in
760 # The odd quoting in the next line works around
761 # an apparent bug in bash 1.12 on linux.
763 ${srcdir}/[*]/config-lang.in) ;;
765 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
766 if test "x$lang_alias" = x
768 echo "$lang doesn't set \$language." 1>&2
771 case ",$enable_languages," in
773 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
781 # -------------------------
782 # Checks for other programs
783 # -------------------------
787 # Find some useful tools
789 # We need awk to create options.c and options.h.
790 # Bail out if it's missing.
792 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
800 # By default, the Darwin ranlib will not treat common symbols as
801 # definitions when building the archive table of contents. Other
802 # ranlibs do that; pass an option to the Darwin ranlib that makes
803 # it behave similarly.
809 AC_SUBST(ranlib_flags)
813 # See if cmp has --ignore-initial.
814 gcc_AC_PROG_CMP_IGNORE_INITIAL
816 # See if we have the mktemp command.
817 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
819 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
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.* \([0-9][0-9.]*\)],
826 if test $gcc_cv_prog_makeinfo_modern = no; then
827 MAKEINFO="$MISSING makeinfo"
829 *** Makeinfo is missing or too old.
830 *** Info documentation will not be built.])
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
841 GENERATED_MANPAGES=generated-manpages
846 AC_SUBST(GENERATED_MANPAGES)
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, [$MISSING flex])
854 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
856 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
857 # check for build == host before using them.
860 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
861 && test -d ../binutils ; then
862 NM='$(objdir)/../binutils/nm-new'
864 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
868 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
869 && test -d ../binutils ; then
870 AR='$(objdir)/../binutils/ar'
872 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
876 # --------------------
877 # Checks for C headers
878 # --------------------
880 AC_MSG_CHECKING(for GNU C library)
881 AC_CACHE_VAL(gcc_cv_glibc,
882 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
883 [[#include <features.h>]], [[
884 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
885 #error Not a GNU C library system
889 AC_MSG_RESULT($gcc_cv_glibc)
890 if test $gcc_cv_glibc = yes; then
891 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
894 # Need to reject headers which give warnings, so that the -Werror bootstrap
895 # works later. *sigh* This needs to come before all header checks.
902 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
903 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
904 sys/resource.h sys/param.h sys/times.h sys/stat.h \
905 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
907 # Check for thread headers.
908 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
909 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
911 # These tests can't be done till we know if we have limits.h.
919 # Stage specific cflags for build.
925 stage1_cflags="-Wa,-J"
931 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
932 # sources; use -no-cpp-precomp to get to GNU cpp.
933 # Apple's GCC has bugs in designated initializer handling, so disable
935 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
938 AC_SUBST(stage1_cflags)
940 # These libraries may be used by collect2.
941 # We may need a special search path to get them linked.
942 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
944 for libs in '' -lld -lmld \
945 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
946 '-L/usr/lib/cmplrs/cc3.11 -lmld'
949 AC_TRY_LINK_FUNC(ldopen,
950 [gcc_cv_collect2_libs="$libs"; break])
953 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
954 case $gcc_cv_collect2_libs in
956 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
958 AC_SUBST(COLLECT2_LIBS)
960 # When building Ada code on Alpha, we need exc_resume which is usually in
961 # -lexc. So test for it.
964 AC_SEARCH_LIBS(exc_resume, exc)
967 AC_SUBST(GNAT_LIBEXC)
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.
973 AC_SEARCH_LIBS(ldexp, m)
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 $gcc_cv_header_inttypes_h = yes; then
990 AC_DEFINE(HAVE_INTTYPES_H, 1,
991 [Define if you have a working <inttypes.h> header file.])
994 dnl Disabled until we have a complete test for buggy enum bitfields.
995 dnl gcc_AC_C_ENUM_BF_UNSIGNED
997 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
998 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
999 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
1000 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
1001 putchar_unlocked putc_unlocked)
1002 AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
1003 sysconf strsignal getrusage nl_langinfo scandir alphasort \
1004 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
1007 if test x$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>
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$gcc_cv_func_mbstowcs_works = xyes; then
1019 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1020 [Define this macro if mbstowcs does not crash when its
1021 first argument is NULL.])
1025 AC_CHECK_TYPE(ssize_t, int)
1027 # Try to determine the array type of the second argument of getgroups
1028 # for the target system (int or gid_t).
1030 if test "${target}" = "${build}"; then
1031 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
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
1041 TARGET_GETGROUPS_T=gid_t
1045 AC_SUBST(TARGET_GETGROUPS_T)
1047 gcc_AC_FUNC_MMAP_BLACKLIST
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
1054 ac_cv_func_vfork_works=yes
1060 # Until we have in-tree GNU iconv:
1062 AC_SUBST(LIBICONV_DEP)
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"])
1078 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1079 #include "ansidecl.h"
1081 #ifdef HAVE_SYS_RESOURCE_H
1082 #include <sys/resource.h>
1086 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1087 #include "ansidecl.h"
1089 #ifdef HAVE_SYS_RESOURCE_H
1090 #include <sys/resource.h>
1092 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
1093 [Define to \`long' if <sys/resource.h> doesn't define.])])
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"
1109 gcc_AC_CHECK_DECLS(times, , ,[
1110 #include "ansidecl.h"
1112 #ifdef HAVE_SYS_TIMES_H
1113 #include <sys/times.h>
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"
1122 #ifdef HAVE_SYS_TIMES_H
1123 #include <sys/times.h>
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.])
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"
1137 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
1138 if test $gcc_cv_type_clock_t = yes; then
1139 AC_DEFINE(HAVE_CLOCK_T, 1,
1140 [Define if <time.h> defines clock_t.])
1143 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1144 CFLAGS="$saved_CFLAGS"
1146 gcc_AC_INITFINI_ARRAY
1148 # mkdir takes a single argument on some systems.
1149 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
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.])])
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])
1170 # --------------------------------------------------------
1171 # Build, host, and target specific configuration fragments
1172 # --------------------------------------------------------
1174 # Collect build-machine-specific information.
1175 . ${srcdir}/config.build
1177 # Collect host-machine-specific information.
1178 . ${srcdir}/config.host
1182 # Collect target-machine-specific information.
1183 . ${srcdir}/config.gcc
1185 extra_objs="${host_extra_objs} ${extra_objs}"
1186 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1188 # Default the target-machine variables that were not explicitly set.
1189 if test x"$tm_file" = x
1190 then tm_file=$cpu_type/$cpu_type.h; fi
1192 if test x"$extra_headers" = x
1193 then extra_headers=; fi
1195 if test x$md_file = x
1196 then md_file=$cpu_type/$cpu_type.md; fi
1198 if test x$out_file = x
1199 then out_file=$cpu_type/$cpu_type.c; fi
1201 if test x"$tmake_file" = x
1202 then tmake_file=$cpu_type/t-$cpu_type
1205 if test x"$dwarf2" = xyes
1206 then tm_file="$tm_file tm-dwarf2.h"
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."
1213 # If any of the xm_file variables contain nonexistent files, warn
1214 # about them and drop them.
1217 for x in $build_xm_file; do
1218 if test -f $srcdir/config/$x
1220 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1226 for x in $host_xm_file; do
1227 if test -f $srcdir/config/$x
1229 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1235 for x in $xm_file; do
1236 if test -f $srcdir/config/$x
1238 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1244 for f in $tm_file; do
1247 if test $count = ax; then
1248 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1250 echo "Using the following target machine macro files:"
1251 for f in $tm_file; do
1252 echo " $srcdir/config/$f"
1256 if test x$need_64bit_hwint = xyes; then
1257 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1258 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1261 if test x$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.])
1268 for f in $host_xm_file; do
1271 if test $count = a; then
1273 elif test $count = ax; then
1274 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1276 echo "Using the following host machine macro files:"
1277 for f in $host_xm_file; do
1278 echo " $srcdir/config/$f"
1281 echo "Using ${out_host_hook_obj} for host machine hooks."
1283 if test "$host_xm_file" != "$build_xm_file"; then
1285 for f in $build_xm_file; do
1288 if test $count = a; then
1290 elif test $count = ax; then
1291 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1293 echo "Using the following build machine macro files:"
1294 for f in $build_xm_file; do
1295 echo " $srcdir/config/$f"
1304 # Check if a valid thread package
1305 case ${enable_threads} in
1308 target_thread_file='single'
1312 target_thread_file='single'
1314 aix | dce | gnat | irix | posix | posix95 | rtems | \
1315 single | solaris | vxworks | win32 )
1316 target_thread_file=${enable_threads}
1319 echo "${enable_threads} is an unknown thread package" 1>&2
1324 if test x${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}
1330 # Make gthr-default.h if we have a thread file.
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
1337 AC_SUBST(gthread_flags)
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$target; then
1347 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1348 [echo "__cxa_atexit can't be enabled on this target"])
1350 # We can't check for __cxa_atexit when building a cross, so assume
1354 if test x$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.])
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.])
1372 # Convert extra_options into a form suitable for Makefile use.
1374 for f in $extra_options; do
1375 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1377 AC_SUBST(extra_opt_files)
1379 # auto-host.h is the file containing items generated by autoconf and is
1380 # the first file included by config.h.
1381 # If host=build, it is correct to have bconfig include auto-host.h
1382 # as well. If host!=build, we are in error and need to do more
1383 # work to find out the build config parameters.
1384 if test x$host = x$build
1386 build_auto=auto-host.h
1388 # We create a subdir, then run autoconf in the subdir.
1389 # To prevent recursion we set host and build for the new
1390 # invocation of configure to the build for this invocation
1397 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1398 *) realsrcdir=../${srcdir};;
1400 saved_CFLAGS="${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}"
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
1412 build_auto=auto-build.h
1414 AC_SUBST(build_subdir)
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}"
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) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1435 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
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 $gcc_config_arguments
1443 gcc_config_arguments_str=`cat conftest.out`
1446 cat > configargs.h <<EOF
1447 /* Generated automatically. */
1448 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1449 static const char thread_model[] = "$thread_file";
1451 static const struct {
1452 const char *name, *value;
1453 } configure_default_options[] = $configure_default_options;
1457 # Internationalization
1458 ZW_GNU_GETTEXT_SISTER_DIR
1460 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1461 # -liconv on the link line twice.
1462 case "$LIBINTL" in *$LIBICONV*)
1466 AC_ARG_ENABLE(secureplt,
1467 [ --enable-secureplt enable -msecure-plt by default for PowerPC],
1470 # Windows32 Registry support for specifying GCC installation paths.
1471 AC_ARG_ENABLE(win32-registry,
1472 [ --disable-win32-registry
1473 disable lookup of installation paths in the
1474 Registry on Windows hosts
1475 --enable-win32-registry enable registry lookup (default)
1476 --enable-win32-registry=KEY
1477 use KEY instead of GCC version as the last portion
1478 of the registry key],,)
1481 win32 | pe | cygwin* | mingw32* | uwin*)
1482 if test "x$enable_win32_registry" != xno; then
1483 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1486 if test "x$enable_win32_registry" != xno; then
1487 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1488 [Define to 1 if installation paths should be looked up in the Windows
1489 Registry. Ignored on non-Windows hosts.])
1491 if test "x$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.])
1503 # Get an absolute path to the GCC top-level source directory
1504 holddir=`${PWDCMD-pwd}`
1506 topdir=`${PWDCMD-pwd}`
1509 # Conditionalize the makefile for this host machine.
1511 for f in ${host_xmake_file}
1513 if test -f ${srcdir}/config/$f
1515 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1519 # Conditionalize the makefile for this target machine.
1521 for f in ${tmake_file}
1523 if test -f ${srcdir}/config/$f
1525 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1528 tmake_file="${tmake_file_}"
1530 # If the host doesn't support symlinks, modify CC in
1531 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1532 # Otherwise, we can use "CC=$(CC)".
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)"
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\\\`"
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)
1553 out_object_file=`basename $out_file .c`.o
1555 tm_file_list="options.h"
1556 tm_include_list="options.h"
1557 for f in $tm_file; do
1560 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1561 tm_include_list="${tm_include_list} $f"
1564 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1565 tm_include_list="${tm_include_list} config/$f"
1572 for f in $tm_p_file; do
1575 tm_p_file_list="${tm_p_file_list} $f"
1576 tm_p_include_list="${tm_p_include_list} $f"
1579 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1580 tm_p_include_list="${tm_p_include_list} config/$f"
1586 for f in $xm_file; do
1589 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1590 xm_include_list="${xm_include_list} $f"
1593 xm_file_list="${xm_file_list} $f"
1594 xm_include_list="${xm_include_list} $f"
1597 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1598 xm_include_list="${xm_include_list} config/$f"
1604 host_xm_include_list=
1605 for f in $host_xm_file; do
1608 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1609 host_xm_include_list="${host_xm_include_list} $f"
1612 host_xm_file_list="${host_xm_file_list} $f"
1613 host_xm_include_list="${host_xm_include_list} $f"
1616 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1617 host_xm_include_list="${host_xm_include_list} config/$f"
1623 for f in $build_xm_file; do
1626 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1627 build_xm_include_list="${build_xm_include_list} $f"
1629 auto-build.h | auto-host.h )
1630 build_xm_file_list="${build_xm_file_list} $f"
1631 build_xm_include_list="${build_xm_include_list} $f"
1634 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1635 build_xm_include_list="${build_xm_include_list} config/$f"
1640 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1641 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1642 CROSS= AC_SUBST(CROSS)
1643 ALL=all.internal AC_SUBST(ALL)
1644 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1646 if test "x$with_build_sysroot" != x; then
1647 build_system_header_dir=$with_build_sysroot'$(NATIVE_SYSTEM_HEADER_DIR)'
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='$(CROSS_SYSTEM_HEADER_DIR)'
1655 if test x$host != x$target
1657 CROSS="-DCROSS_COMPILE"
1659 SYSTEM_HEADER_DIR=$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 $targetos = darwin ; then
1671 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1676 i?86-*-*,x86_64-*-* \
1677 | powerpc*-*-*,powerpc64*-*-*)
1678 CROSS="$CROSS -DNATIVE_CROSS" ;;
1680 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1681 SYSTEM_HEADER_DIR=$build_system_header_dir
1684 # If this is a cross-compiler that does not
1685 # have its own set of headers then define
1688 # If this is using newlib, without having the headers available now,
1689 # then define inhibit_libc in LIBGCC2_CFLAGS.
1690 # This prevents libgcc2 from containing any code which requires libc
1693 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1694 test x$with_newlib = xyes ; } &&
1695 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1698 AC_SUBST(inhibit_libc)
1700 # When building gcc with a cross-compiler, we need to adjust things so
1701 # that the generator programs are still built with the native compiler.
1702 # Also, we cannot run fixincludes or fix-header.
1704 # These are the normal (build=host) settings:
1705 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1706 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1707 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1709 # Possibly disable fixproto, on a per-target basis.
1710 case ${use_fixproto} in
1715 STMP_FIXPROTO=stmp-fixproto
1718 AC_SUBST(STMP_FIXPROTO)
1720 # And these apply if build != host, or we are generating coverage data
1721 if test x$build != x$host || test "x$coverage_flags" != x
1723 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1725 if test "x$TARGET_SYSTEM_ROOT" = x; then
1726 if test "x$STMP_FIXPROTO" != x; then
1727 STMP_FIXPROTO=stmp-install-fixproto
1732 # Expand extra_headers to include complete path.
1733 # This substitutes for lots of t-* files.
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}"
1740 # Define collect2 in Makefile.
1741 case $host_can_use_collect2 in
1743 *) collect2='collect2$(exeext)' ;;
1745 AC_SUBST([collect2])
1747 # Add a definition of USE_COLLECT2 if system wants one.
1748 case $use_collect2 in
1749 no) use_collect2= ;;
1752 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1753 xm_defines="${xm_defines} USE_COLLECT2"
1754 case $host_can_use_collect2 in
1756 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1762 # ---------------------------
1763 # Assembler & linker features
1764 # ---------------------------
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.
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.
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$host; then
1783 # Single tree build which includes gas. We want to prefer it
1784 # over whatever linker top-level may have detected, since
1785 # we'll use what we're building after installation anyway.
1787 _gcc_COMPUTE_GAS_VERSION
1788 gcc_cv_as=../gas/as-new$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
1794 in_tree_gas_is_elf=yes
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
1802 gcc_AC_CHECK_TOOL(gcc_cv_as, as, ORIGINAL_AS_FOR_TARGET, AS_FOR_TARGET, AS)
1803 AC_MSG_CHECKING(what assembler to use)
1804 case $in_tree_gas in
1806 AC_MSG_RESULT("newly built gas")
1809 AC_MSG_RESULT($gcc_cv_as)
1813 # Identify the linker which will work hand-in-glove with the newly
1814 # built GCC, so that we can examine its features. This is the linker
1815 # which will be driven by the driver program.
1817 # If build != host, and we aren't building gas in-tree, we identify a
1818 # build->target linker and hope that it will have the same features
1819 # as the host->target linker we'll be using.
1822 gcc_cv_gld_major_version=
1823 gcc_cv_gld_minor_version=
1824 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1825 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1826 if test -x "$DEFAULT_LINKER"; then
1827 gcc_cv_ld="$DEFAULT_LINKER"
1828 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1829 && test -f ../ld/Makefile \
1830 && test x$build = x$host; then
1831 # Single tree build which includes ld. We want to prefer it
1832 # over whatever linker top-level may have detected, since
1833 # we'll use what we're building after installation anyway.
1835 in_tree_ld_is_elf=no
1836 if (grep 'EMUL = .*elf' ../ld/Makefile \
1837 || grep 'EMUL = .*linux' ../ld/Makefile \
1838 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1839 in_tree_ld_is_elf=yes
1841 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
1844 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1846 if test x$gcc_cv_gld_version != x; then
1851 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1852 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1854 gcc_cv_ld=../ld/ld-new$build_exeext
1855 elif test -x collect-ld$build_exeext; then
1856 # Build using linker in the current directory.
1857 gcc_cv_ld=./collect-ld$build_exeext
1860 gcc_AC_CHECK_TOOL(gcc_cv_ld, ld, ORIGINAL_LD_FOR_TARGET, LD_FOR_TARGET, LD)
1861 AC_MSG_CHECKING(what linker to use)
1864 AC_MSG_RESULT("newly built ld")
1867 AC_MSG_RESULT($gcc_cv_ld)
1871 # Figure out what nm we will be using.
1872 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1875 if test -f $gcc_cv_binutils_srcdir/configure.in \
1876 && test -f ../binutils/Makefile; then
1877 # Single tree build which includes binutils.
1879 gcc_cv_nm=../binutils/nm-new$build_exeext
1880 elif test -x nm$build_exeext; then
1881 gcc_cv_nm=./nm$build_exeext
1884 gcc_AC_CHECK_TOOL(gcc_cv_nm, nm, ORIGINAL_NM_FOR_TARGET, NM_FOR_TARGET, NM)
1885 AC_MSG_CHECKING(what nm to use)
1887 yes) AC_MSG_RESULT("newly built nm") ;;
1888 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1891 # Figure out what objdump we will be using.
1894 if test -f $gcc_cv_binutils_srcdir/configure.in \
1895 && test -f ../binutils/Makefile; then
1896 # Single tree build which includes binutils.
1898 gcc_cv_objdump=../binutils/objdump$build_exeext
1899 elif test -x objdump$build_exeext; then
1900 gcc_cv_objdump=./objdump$build_exeext
1903 gcc_AC_CHECK_TOOL(gcc_cv_objdump, objdump, ORIGINAL_OBJDUMP_FOR_TARGET,
1904 OBJDUMP_FOR_TARGET, OBJDUMP)
1905 AC_MSG_CHECKING(what objdump to use)
1906 case $in_tree_objdump in
1907 yes) AC_MSG_RESULT("newly built objdump") ;;
1908 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1911 # Figure out what assembler alignment features are present.
1912 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1916 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1917 [Define if your assembler supports .balign and .p2align.])])
1919 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1922 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1923 [Define if your assembler supports specifying the maximum number
1924 of bytes to skip when using the GAS .p2align command.])])
1926 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1928 [conftest_label1: .word 0
1930 conftest_label2: .word 0
1932 [if test x$gcc_cv_nm != x; then
1933 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1934 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1935 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1937 else gcc_cv_as_subsection_m1=yes
1939 rm -f conftest.nm1 conftest.nm2
1941 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1942 [Define if your assembler supports .subsection and .subsection -1 starts
1943 emitting at the beginning of your section.])])
1945 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1948 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1950 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
1953 .NSUBSPA $CODE$,COMDAT],,
1954 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
1956 # .hidden needs to be supported in both the assembler and the linker,
1957 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1958 # This is irritatingly difficult to feature test for; we have to check the
1959 # date string after the version number. If we've got an in-tree
1960 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1962 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1963 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1968 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1969 [if test $in_tree_ld = yes ; then
1971 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1972 && test $in_tree_ld_is_elf = yes; then
1973 gcc_cv_ld_hidden=yes
1976 gcc_cv_ld_hidden=yes
1977 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1978 if echo "$ld_ver" | grep GNU > /dev/null; then
1980 ld_vers=`echo $ld_ver | sed -n \
1981 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1982 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1983 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1984 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1985 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1986 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1987 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1988 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1989 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1990 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1991 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1992 if test 0"$ld_date" -lt 20020404; then
1993 if test -n "$ld_date"; then
1994 # If there was date string, but was earlier than 2002-04-04, fail
1996 elif test -z "$ld_vers"; then
1997 # If there was no date string nor ld version number, something is wrong
2000 test -z "$ld_vers_patch" && ld_vers_patch=0
2001 if test "$ld_vers_major" -lt 2; then
2003 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2004 gcc_cv_ld_hidden="no"
2005 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2013 hppa64*-*-hpux* | ia64*-*-hpux*)
2014 gcc_cv_ld_hidden=yes
2022 libgcc_visibility=no
2023 AC_SUBST(libgcc_visibility)
2024 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2025 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2026 libgcc_visibility=yes
2027 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2028 [Define if your assembler and linker support .hidden.])
2031 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2032 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2040 [# GAS versions before 2.11 do not support uleb128,
2041 # despite appearing to.
2042 # ??? There exists an elf-specific test that will crash
2043 # the assembler. Perhaps it's better to figure out whether
2044 # arbitrary sections are supported and try the test.
2045 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2046 if echo "$as_ver" | grep GNU > /dev/null; then
2048 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2049 as_major=`echo $as_ver | sed 's/\..*//'`
2050 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2052 if test $as_major -eq 2 && test $as_minor -lt 11
2054 else gcc_cv_as_leb128=yes
2057 [AC_DEFINE(HAVE_AS_LEB128, 1,
2058 [Define if your assembler supports .sleb128 and .uleb128.])])
2060 # GAS versions up to and including 2.11.0 may mis-optimize
2062 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2070 .section .eh_frame,"aw",@progbits
2072 .4byte .LECIE1-.LSCIE1
2086 .4byte .LEFDE1-.LASFDE1
2088 .4byte .LASFDE1-__FRAME_BEGIN__
2096 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2097 cat > conftest.lit <<EOF
2098 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2099 0010 01000000 12000000 18000000 00000000 ................
2100 0020 08000000 04080000 0044 .........D @&t@
2102 cat > conftest.big <<EOF
2103 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2104 0010 00000001 00000012 00000018 00000000 ................
2105 0020 00000008 04000000 0844 .........D @&t@
2107 # If the assembler didn't choke, and we can objdump,
2108 # and we got the correct data, then succeed.
2109 if test x$gcc_cv_objdump != x \
2110 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2111 | tail -3 > conftest.got \
2112 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2113 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2115 gcc_cv_as_eh_frame=yes
2116 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2117 gcc_cv_as_eh_frame=buggy
2119 # Uh oh, what do we do now?
2120 gcc_cv_as_eh_frame=no
2123 if test $gcc_cv_as_eh_frame = buggy; then
2124 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2125 [Define if your assembler mis-optimizes .eh_frame data.])
2128 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2129 [elf,2,12,0], [--fatal-warnings],
2130 [.section .rodata.str, "aMS", @progbits, 1])
2131 if test $gcc_cv_as_shf_merge = no; then
2132 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2133 [elf,2,12,0], [--fatal-warnings],
2134 [.section .rodata.str, "aMS", %progbits, 1])
2136 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2137 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2138 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2140 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2141 [elf,2,16,0], [--fatal-warnings],
2142 [.section .text,"axG",@progbits,.foo,comdat])
2143 if test $gcc_cv_as_comdat_group = yes; then
2144 gcc_cv_as_comdat_group_percent=no
2146 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2147 [elf,2,16,0], [--fatal-warnings],
2148 [.section .text,"axG",%progbits,.foo,comdat])
2150 if test $in_tree_ld != yes && test x"$ld_vers" != x; then
2152 if test 0"$ld_date" -lt 20050308; then
2153 if test -n "$ld_date"; then
2154 # If there was date string, but was earlier than 2005-03-08, fail
2156 elif test "$ld_vers_major" -lt 2; then
2158 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2162 if test $comdat_group = no; then
2163 gcc_cv_as_comdat_group=no
2164 gcc_cv_as_comdat_group_percent=no
2167 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
2168 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2169 [Define 0/1 if your assembler and linker support COMDAT groups.])
2171 # Thread-local storage - the check is heavily parametrized.
2180 .section ".tdata","awT",@progbits
2183 ldq $27,__tls_get_addr($29) !literal!1
2184 lda $16,foo($29) !tlsgd!1
2185 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2186 ldq $27,__tls_get_addr($29) !literal!2
2187 lda $16,foo($29) !tlsldm!2
2188 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2189 ldq $1,foo($29) !gotdtprel
2190 ldah $2,foo($29) !dtprelhi
2191 lda $3,foo($2) !dtprello
2192 lda $4,foo($29) !dtprel
2193 ldq $1,foo($29) !gottprel
2194 ldah $2,foo($29) !tprelhi
2195 lda $3,foo($2) !tprello
2196 lda $4,foo($29) !tprel'
2199 tls_as_opt=--fatal-warnings
2203 .section ".tdata","awT",@progbits
2215 .section ".tdata","awT",@progbits
2219 addil LT%foo-$tls_gdidx$,gp
2220 ldo RT%foo-$tls_gdidx$(%r1),%arg0
2223 addil LT%foo-$tls_ldidx$,gp
2225 ldo RT%foo-$tls_ldidx$(%r1),%arg0
2226 addil LR%foo-$tls_dtpoff$,%ret0
2227 ldo RR%foo-$tls_dtpoff$(%r1),%t1
2229 addil LT%foo-$tls_ieoff$,gp
2230 ldw RT%foo-$tls_ieoff$(%r1),%t2
2233 addil LR%foo-$tls_leoff$,%t1
2234 ldo RR%foo-$tls_leoff$(%r1),%t2'
2237 tls_as_opt=--fatal-warnings
2241 .section ".tdata","awT",@progbits
2245 leal foo@TLSGD(,%ebx,1), %eax
2246 leal foo@TLSLDM(%ebx), %eax
2247 leal foo@DTPOFF(%eax), %edx
2248 movl foo@GOTTPOFF(%ebx), %eax
2249 subl foo@GOTTPOFF(%ebx), %eax
2250 addl foo@GOTNTPOFF(%ebx), %eax
2251 movl foo@INDNTPOFF, %eax
2252 movl $foo@TPOFF, %eax
2253 subl $foo@TPOFF, %eax
2254 leal foo@NTPOFF(%ecx), %eax'
2257 tls_as_opt=--fatal-warnings
2261 .section ".tdata","awT",@progbits
2265 leaq foo@TLSGD(%rip), %rdi
2266 leaq foo@TLSLD(%rip), %rdi
2267 leaq foo@DTPOFF(%rax), %rdx
2268 movq foo@GOTTPOFF(%rip), %rax
2269 movq $foo@TPOFF, %rax'
2272 tls_as_opt=--fatal-warnings
2276 .section ".tdata","awT",@progbits
2279 addl r16 = @ltoff(@dtpmod(foo#)), gp
2280 addl r17 = @ltoff(@dtprel(foo#)), gp
2281 addl r18 = @ltoff(@tprel(foo#)), gp
2282 addl r19 = @dtprel(foo#), gp
2283 adds r21 = @dtprel(foo#), r13
2284 movl r23 = @dtprel(foo#)
2285 addl r20 = @tprel(foo#), gp
2286 adds r22 = @tprel(foo#), r13
2287 movl r24 = @tprel(foo#)'
2290 tls_as_opt=--fatal-warnings
2294 .section .tdata,"awT",@progbits
2298 addiu $4, $28, %tlsgd(x)
2299 addiu $4, $28, %tlsldm(x)
2300 lui $4, %dtprel_hi(x)
2301 addiu $4, $4, %dtprel_lo(x)
2302 lw $4, %gottprel(x)($28)
2303 lui $4, %tprel_hi(x)
2304 addiu $4, $4, %tprel_lo(x)'
2307 tls_as_opt='-32 --fatal-warnings'
2311 .section ".tdata","awT",@progbits
2319 addi 3,31,ld0@got@tlsgd
2321 addi 3,31,x1@got@tlsld
2324 addis 9,3,x2@dtprel@ha
2325 addi 9,9,x2@dtprel@l
2326 lwz 9,x3@got@tprel(31)
2329 addis 9,2,x2@tprel@ha
2330 addi 9,9,x2@tprel@l'
2333 tls_as_opt="-a32 --fatal-warnings"
2337 .section ".tdata","awT",@progbits
2345 addi 3,2,ld0@got@tlsgd
2351 addi 3,2,x1@got@tlsld
2357 addis 9,3,x2@dtprel@ha
2358 addi 9,9,x2@dtprel@l
2361 ld 9,x3@got@dtprel(2)
2367 tls_as_opt="-a64 --fatal-warnings"
2371 .section ".tdata","awT",@progbits
2380 l %r1,foo@GOTNTPOFF(%r12)
2381 l %r1,0(%r1):tls_load:foo
2382 bas %r14,0(%r1,%r13):tls_gdcall:foo
2383 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2386 tls_as_opt="-m31 --fatal-warnings"
2390 .section ".tdata","awT",@progbits
2398 lg %r1,foo@GOTNTPOFF(%r12)
2399 larl %r1,foo@INDNTPOFF
2400 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2401 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2404 tls_as_opt="-m64 -Aesame --fatal-warnings"
2406 sh-*-* | sh[34]-*-*)
2408 .section ".tdata","awT",@progbits
2418 tls_as_opt=--fatal-warnings
2422 sparc*-sun-solaris2.*)
2429 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2431 .section ".tdata",#alloc,#write,#tls
2434 sethi %tgd_hi22(foo), %o0
2435 add %o0, %tgd_lo10(foo), %o1
2436 add %l7, %o1, %o0, %tgd_add(foo)
2437 call __tls_get_addr, %tgd_call(foo)
2438 sethi %tldm_hi22(foo), %l1
2439 add %l1, %tldm_lo10(foo), %l2
2440 add %l7, %l2, %o0, %tldm_add(foo)
2441 call __tls_get_addr, %tldm_call(foo)
2442 sethi %tldo_hix22(foo), %l3
2443 xor %l3, %tldo_lox10(foo), %l4
2444 add %o0, %l4, %l5, %tldo_add(foo)
2445 sethi %tie_hi22(foo), %o3
2446 add %o3, %tie_lo10(foo), %o3
2447 ld [%l7 + %o3], %o2, %tie_ld(foo)
2448 add %g7, %o2, %o4, %tie_add(foo)
2449 sethi %tle_hix22(foo), %l1
2450 xor %l1, %tle_lox10(foo), %o5
2451 ld [%g7 + %o5], %o1'
2456 .section ".tdata","awT",@progbits
2459 sethi %tgd_hi22(foo), %o0
2460 add %o0, %tgd_lo10(foo), %o1
2461 add %l7, %o1, %o0, %tgd_add(foo)
2462 call __tls_get_addr, %tgd_call(foo)
2463 sethi %tldm_hi22(foo), %l1
2464 add %l1, %tldm_lo10(foo), %l2
2465 add %l7, %l2, %o0, %tldm_add(foo)
2466 call __tls_get_addr, %tldm_call(foo)
2467 sethi %tldo_hix22(foo), %l3
2468 xor %l3, %tldo_lox10(foo), %l4
2469 add %o0, %l4, %l5, %tldo_add(foo)
2470 sethi %tie_hi22(foo), %o3
2471 add %o3, %tie_lo10(foo), %o3
2472 ld [%l7 + %o3], %o2, %tie_ld(foo)
2473 add %g7, %o2, %o4, %tie_add(foo)
2474 sethi %tle_hix22(foo), %l1
2475 xor %l1, %tle_lox10(foo), %o5
2476 ld [%g7 + %o5], %o1'
2479 tls_as_opt="-32 --fatal-warnings"
2484 if test -z "$tls_first_major"; then
2485 : # If we don't have a check, assume no support.
2487 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2488 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2489 [AC_DEFINE(HAVE_AS_TLS, 1,
2490 [Define if your assembler supports thread-local storage.])])
2493 # Target-specific assembler checks.
2495 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2496 gcc_cv_ld_static_dynamic=no
2497 if test $in_tree_ld = yes ; then
2498 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2499 gcc_cv_ld_static_dynamic=yes
2501 elif test x$gcc_cv_ld != x; then
2502 # Check if linker supports -Bstatic/-Bdynamic option
2503 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2504 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2505 gcc_cv_ld_static_dynamic=yes
2508 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2509 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2510 [Define if your linker supports -Bstatic/-Bdynamic option.])
2512 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2514 if test x"$demangler_in_ld" = xyes; then
2515 AC_MSG_CHECKING(linker --demangle support)
2516 gcc_cv_ld_demangle=no
2517 if test $in_tree_ld = yes; then
2518 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2519 gcc_cv_ld_demangle=yes
2521 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2522 # Check if the GNU linker supports --demangle option
2523 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2524 gcc_cv_ld_demangle=yes
2527 if test x"$gcc_cv_ld_demangle" = xyes; then
2528 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2529 [Define if your linker supports --demangle option.])
2531 AC_MSG_RESULT($gcc_cv_ld_demangle)
2535 # All TARGET_ABI_OSF targets.
2536 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2537 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2538 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2541 extbl $3, $2, $3 !lituse_bytoff!1
2542 ldq $2, a($29) !literal!1
2543 ldq $4, b($29) !literal!2
2544 ldq_u $3, 0($2) !lituse_base!1
2545 ldq $27, f($29) !literal!5
2546 jsr $26, ($27), f !lituse_jsr!5
2547 ldah $29, 0($26) !gpdisp!3
2548 lda $0, c($29) !gprel
2549 ldah $1, d($29) !gprelhigh
2550 lda $1, d($1) !gprellow
2551 lda $29, 0($29) !gpdisp!3],,
2552 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2553 [Define if your assembler supports explicit relocations.])])
2554 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2555 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2558 ldq $27, a($29) !literal!1
2559 jsr $26, ($27), a !lituse_jsrdirect!1],,
2560 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2561 [Define if your assembler supports the lituse_jsrdirect relocation.])])
2565 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2566 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2567 [-no-mul-bug-abort], [.text],,
2568 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2569 [Define if your assembler supports the -no-mul-bug-abort option.])])
2573 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2574 [.register %g2, #scratch],,
2575 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2576 [Define if your assembler supports .register.])])
2578 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2580 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2581 [Define if your assembler supports -relax option.])])
2583 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2584 gcc_cv_as_sparc_ua_pcrel,,
2592 .uaword %r_disp32(foo)],
2593 [if test x$gcc_cv_ld != x \
2594 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2595 gcc_cv_as_sparc_ua_pcrel=yes
2598 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2599 [Define if your assembler and linker support unaligned PC relative relocs.])
2601 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2602 gcc_cv_as_sparc_ua_pcrel_hidden,,
2607 .uaword %r_disp32(foo)
2608 .byte 0x32, 0x33, 0x34
2613 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2614 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2615 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2616 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2617 if $gcc_cv_objdump -R conftest 2> /dev/null \
2618 | grep 'DISP32' > /dev/null 2>&1; then
2621 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2625 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2626 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2627 ]) # unaligned pcrel relocs
2629 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2630 gcc_cv_as_sparc_offsetable_lo10,,
2633 or %g1, %lo(ab) + 12, %g1
2634 or %g1, %lo(ab + 12), %g1],
2635 [if test x$gcc_cv_objdump != x \
2636 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2637 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2638 gcc_cv_as_sparc_offsetable_lo10=yes
2640 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2641 [Define if your assembler supports offsetable %lo().])])
2645 i[34567]86-*-* | x86_64-*-*)
2648 cygwin* | pe | mingw32*)
2649 # Used for DWARF 2 in PE
2650 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2651 gcc_cv_as_ix86_pe_secrel32,
2657 [if test x$gcc_cv_ld != x \
2658 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2659 gcc_cv_as_ix86_pe_secrel32=yes
2662 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2663 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2667 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2668 gcc_cv_as_ix86_filds_fists,
2669 [2,9,0],, [filds mem; fists mem],,
2670 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2671 [Define if your assembler uses the new HImode fild and fist notation.])])
2673 gcc_GAS_CHECK_FEATURE([cmov syntax],
2674 gcc_cv_as_ix86_cmov_sun_syntax,,,
2675 [cmovl.l %edx, %eax],,
2676 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2677 [Define if your assembler supports the Sun syntax for cmov.])])
2679 # This one is used unconditionally by i386.[ch]; it is to be defined
2680 # to 1 if the feature is present, 0 otherwise.
2681 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2682 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2688 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2689 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2690 [Define true if the assembler supports '.long foo@GOTOFF'.])
2694 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2695 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2697 addl r15 = @ltoffx(x#), gp
2699 ld8.mov r16 = [[r15]], x#],,
2700 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2701 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2707 *-*-aix*) conftest_s=' .machine "pwr5"
2711 gcc_GAS_CHECK_FEATURE([.machine directive support],
2712 gcc_cv_as_machine_directive,,,
2713 [ .machine ppc7400])
2714 if test x$gcc_cv_as_machine_directive != xyes; then
2715 echo "*** This target requires an assembler supporting \".machine\"" >&2
2716 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2717 test x$build = x$target && exit 1
2721 *) conftest_s=' .machine power4
2726 gcc_GAS_CHECK_FEATURE([mfcr field support],
2727 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2729 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2730 [Define if your assembler supports mfcr field.])])
2733 *-*-aix*) conftest_s=' .machine "pwr5"
2736 *) conftest_s=' .machine power5
2741 gcc_GAS_CHECK_FEATURE([popcntb support],
2742 gcc_cv_as_powerpc_popcntb, [2,17,0],,
2744 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
2745 [Define if your assembler supports popcntb field.])])
2748 *-*-aix*) conftest_s=' .csect .text[[PR]]
2750 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
2754 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
2755 *) conftest_s=' .text
2757 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
2760 gcc_GAS_CHECK_FEATURE([rel16 relocs],
2761 gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
2763 [AC_DEFINE(HAVE_AS_REL16, 1,
2764 [Define if your assembler supports R_PPC_REL16 relocs.])])
2768 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2769 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2770 [ lw $4,%gp_rel(foo)($4)],,
2771 [if test x$target_cpu_default = x
2772 then target_cpu_default=MASK_EXPLICIT_RELOCS
2773 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2778 # Mips and HP-UX need the GNU assembler.
2779 # Linux on IA64 might be able to use the Intel assembler.
2782 mips*-*-* | *-*-hpux* )
2783 if test x$gas_flag = xyes \
2784 || test x"$host" != x"$build" \
2785 || test ! -x "$gcc_cv_as" \
2786 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2789 echo "*** This configuration requires the GNU assembler" >&2
2795 # ??? Not all targets support dwarf2 debug_line, even within a version
2796 # of gas. Moreover, we need to emit a valid instruction to trigger any
2797 # info to the output file. So, as supported targets are added to gas 2.11,
2798 # add some instruction here to (also) show we expect this might work.
2799 # ??? Once 2.11 is released, probably need to add first known working
2800 # version to the per-target configury.
2802 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2803 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2804 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2807 ia64*-*-* | s390*-*-*)
2814 if test x"$insn" != x; then
2816 .file 1 \"conftest.s\"
2819 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2820 gcc_cv_as_dwarf2_debug_line,
2821 [elf,2,11,0],, [$conftest_s],
2822 [if test x$gcc_cv_objdump != x \
2823 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2824 | grep debug_line > /dev/null 2>&1; then
2825 gcc_cv_as_dwarf2_debug_line=yes
2828 # The .debug_line file table must be in the exact order that
2829 # we specified the files, since these indices are also used
2830 # by DW_AT_decl_file. Approximate this test by testing if
2831 # the assembler bitches if the same index is assigned twice.
2832 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2833 gcc_cv_as_dwarf2_file_buggy,,,
2837 if test $gcc_cv_as_dwarf2_debug_line = yes \
2838 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2839 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2840 [Define if your assembler supports dwarf2 .file/.loc directives,
2841 and preserves file table indices exactly as given.])
2844 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2845 gcc_cv_as_gdwarf2_flag,
2846 [elf,2,11,0], [--gdwarf2], [$insn],,
2847 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2848 [Define if your assembler supports the --gdwarf2 option.])])
2850 gcc_GAS_CHECK_FEATURE([--gstabs option],
2851 gcc_cv_as_gstabs_flag,
2852 [elf,2,11,0], [--gstabs], [$insn],
2853 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2854 # and warns about it, but still exits successfully. So check for
2856 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2858 else gcc_cv_as_gstabs_flag=yes
2860 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2861 [Define if your assembler supports the --gstabs option.])])
2864 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2865 gcc_cv_ld_ro_rw_mix=unknown
2866 if test $in_tree_ld = yes ; then
2867 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2868 && test $in_tree_ld_is_elf = yes; then
2869 gcc_cv_ld_ro_rw_mix=read-write
2871 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2872 echo '.section myfoosect, "a"' > conftest1.s
2873 echo '.section myfoosect, "aw"' > conftest2.s
2874 echo '.byte 1' >> conftest2.s
2875 echo '.section myfoosect, "a"' > conftest3.s
2876 echo '.byte 0' >> conftest3.s
2877 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2878 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2879 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2880 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2881 conftest2.o conftest3.o > /dev/null 2>&1; then
2882 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2883 | sed -e '/myfoosect/!d' -e N`
2884 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2885 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2886 gcc_cv_ld_ro_rw_mix=read-only
2888 gcc_cv_ld_ro_rw_mix=read-write
2893 rm -f conftest.* conftest[123].*
2896 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2897 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2898 [Define if your linker links a mix of read-only
2899 and read-write sections into a read-write section.])
2901 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2903 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2904 gcc_cv_ld_eh_frame_hdr=no
2905 if test $in_tree_ld = yes ; then
2906 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2907 && test $in_tree_ld_is_elf = yes; then
2908 gcc_cv_ld_eh_frame_hdr=yes
2910 elif test x$gcc_cv_ld != x; then
2911 # Check if linker supports --eh-frame-hdr option
2912 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2913 gcc_cv_ld_eh_frame_hdr=yes
2916 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
2917 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2918 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2919 [Define if your linker supports --eh-frame-hdr option.])
2921 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2923 AC_MSG_CHECKING(linker position independent executable support)
2925 if test $in_tree_ld = yes ; then
2926 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2927 && test $in_tree_ld_is_elf = yes; then
2930 elif test x$gcc_cv_ld != x; then
2931 # Check if linker supports -pie option
2932 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2936 if test x"$gcc_cv_ld_pie" = xyes; then
2937 AC_DEFINE(HAVE_LD_PIE, 1,
2938 [Define if your linker supports -pie option.])
2940 AC_MSG_RESULT($gcc_cv_ld_pie)
2946 AC_CACHE_CHECK(linker --as-needed support,
2947 gcc_cv_ld_as_needed,
2948 [gcc_cv_ld_as_needed=no
2949 if test $in_tree_ld = yes ; then
2950 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2951 && test $in_tree_ld_is_elf = yes; then
2952 gcc_cv_ld_as_needed=yes
2954 elif test x$gcc_cv_ld != x; then
2955 # Check if linker supports --as-needed and --no-as-needed options
2956 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2957 gcc_cv_ld_as_needed=yes
2961 if test x"$gcc_cv_ld_as_needed" = xyes; then
2962 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2963 [Define if your linker supports --as-needed and --no-as-needed options.])
2966 case "$target:$tm_file" in
2967 powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
2968 AC_CACHE_CHECK(linker support for omitting dot symbols,
2969 gcc_cv_ld_no_dot_syms,
2970 [gcc_cv_ld_no_dot_syms=no
2971 if test $in_tree_ld = yes ; then
2972 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
2973 gcc_cv_ld_no_dot_syms=yes
2975 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
2976 cat > conftest1.s <<EOF
2980 cat > conftest2.s <<EOF
2981 .section ".opd","aw"
2986 .quad .LEfoo,.TOC.@tocbase,0
2992 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
2993 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
2994 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
2995 gcc_cv_ld_no_dot_syms=yes
2997 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3000 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3001 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3002 [Define if your PowerPC64 linker only needs function descriptor syms.])
3007 AC_CACHE_CHECK(linker --sysroot support,
3009 [gcc_cv_ld_sysroot=no
3010 if test $in_tree_ld = yes ; then
3011 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
3012 gcc_cv_ld_sysroot=yes
3014 elif test x$gcc_cv_ld != x; then
3015 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3016 gcc_cv_ld_sysroot=yes
3019 if test x"$gcc_cv_ld_sysroot" = xyes; then
3020 AC_DEFINE(HAVE_LD_SYSROOT, 1,
3021 [Define if your linker supports --sysroot.])
3024 if test x$with_sysroot = x && test x$host = x$target \
3025 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3026 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3027 [Define to PREFIX/include if cpp should also search that directory.])
3030 # Test for stack protector support in target C library.
3033 AC_CACHE_CHECK(__stack_chk_fail in target GNU C library,
3034 gcc_cv_libc_provides_ssp,
3035 [gcc_cv_libc_provides_ssp=no
3036 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3037 if test "x$with_sysroot" = x; then
3038 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3039 elif test "x$with_sysroot" = xyes; then
3040 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3042 glibc_header_dir="${with_sysroot}/usr/include"
3045 glibc_header_dir=/usr/include
3047 # glibc 2.4 and later provides __stack_chk_fail and
3048 # either __stack_chk_guard, or TLS access to stack guard canary.
3049 if test -f $glibc_header_dir/features.h \
3050 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
3051 $glibc_header_dir/features.h > /dev/null; then
3052 if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
3053 $glibc_header_dir/features.h > /dev/null; then
3054 gcc_cv_libc_provides_ssp=yes
3055 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
3056 $glibc_header_dir/features.h > /dev/null \
3057 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
3058 $glibc_header_dir/features.h > /dev/null; then
3059 gcc_cv_libc_provides_ssp=yes
3062 *) gcc_cv_libc_provides_ssp=no ;;
3064 if test x$gcc_cv_libc_provides_ssp = xyes; then
3065 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
3066 [Define if your target C library provides stack protector support])
3069 # Find out what GC implementation we want, or may, use.
3071 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3079 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3082 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3087 echo "Using $GGC for garbage collection."
3089 # Use the system's zlib library.
3091 zlibinc="-I\$(srcdir)/../zlib"
3092 AC_ARG_WITH(system-zlib,
3093 [ --with-system-zlib use installed libz],
3100 dnl Very limited version of automake's enable-maintainer-mode
3102 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3103 dnl maintainer-mode is disabled by default
3104 AC_ARG_ENABLE(maintainer-mode,
3105 [ --enable-maintainer-mode
3106 enable make rules and dependencies not useful
3107 (and sometimes confusing) to the casual installer],
3108 maintainer_mode=$enableval,
3111 AC_MSG_RESULT($maintainer_mode)
3113 if test "$maintainer_mode" = "yes"; then
3124 # Make empty files to contain the specs and options for each language.
3125 # Then add #include lines to for a compiler that has specs and/or options.
3130 for subdir in . $subdirs
3132 if test -f $srcdir/$subdir/lang.opt; then
3133 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3135 if test -f $srcdir/$subdir/lang-specs.h; then
3136 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3138 if test -f $srcdir/$subdir/$subdir-tree.def; then
3139 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3143 # These (without "all_") are set in each config-lang.in.
3144 # `language' must be a single word so is spelled singularly.
3149 all_outputs='Makefile gccbug mklibgcc libada-mk'
3150 # List of language makefile fragments.
3152 # List of language subdirectory makefiles. Deprecated.
3154 # Files for gengtype
3155 all_gtfiles="$target_gtfiles"
3156 # Files for gengtype with language
3157 all_gtfiles_files_langs=
3158 all_gtfiles_files_files=
3160 # Add the language fragments.
3161 # Languages are added via two mechanisms. Some information must be
3162 # recorded in makefile variables, these are defined in config-lang.in.
3163 # We accumulate them and plug them into the main Makefile.
3164 # The other mechanism is a set of hooks for each of the main targets
3165 # like `clean', `install', etc.
3167 language_hooks="Make-hooks"
3177 . ${srcdir}/$s/config-lang.in
3178 if test "x$language" = x
3180 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3183 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3184 if test -f ${srcdir}/$s/Makefile.in
3185 then all_lang_makefiles="$s/Makefile"
3187 all_languages="$all_languages $language"
3188 if test "x$boot_language" = xyes
3190 all_boot_languages="$all_boot_languages $language"
3192 all_compilers="$all_compilers $compilers"
3193 all_stagestuff="$all_stagestuff $stagestuff"
3194 all_outputs="$all_outputs $outputs"
3195 all_gtfiles="$all_gtfiles $gtfiles"
3198 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3199 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3203 # Pick up gtfiles for c
3206 . ${srcdir}/c-config-lang.in
3207 all_gtfiles="$all_gtfiles $gtfiles"
3210 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3211 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3215 for language in $all_languages
3217 check_languages="$check_languages check-$language"
3220 # We link each language in with a set of hooks, reached indirectly via
3225 target_list="all.build all.cross start.encap rest.encap tags \
3226 install-normal install-common install-man \
3227 uninstall info man srcextra srcman srcinfo \
3228 mostlyclean clean distclean maintainer-clean \
3229 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3230 for t in $target_list
3233 for lang in $all_languages
3237 echo "lang.$t: $x" >> Make-hooks
3246 echo "dir ." > .gdbinit
3247 echo "dir ${srcdir}" >> .gdbinit
3248 if test x$gdb_needs_out_file_path = xyes
3250 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3252 if test "x$subdirs" != x; then
3255 echo "dir ${srcdir}/$s" >> .gdbinit
3258 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3260 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3261 # absolute path for gcc_tooldir based on inserting the number of up-directory
3262 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3263 # $(libsubdir)/@(unlibsubdir) based path.
3264 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3265 # make and thus we'd get different behavior depending on where we built the
3267 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3268 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3270 changequote(<<, >>)dnl
3271 # An explanation of the sed strings:
3272 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3273 # -e 's|/$||' match a trailing forward slash and eliminates it
3274 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3275 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3277 # (*) Note this pattern overwrites the first character of the string
3278 # with a forward slash if one is not already present. This is not a
3279 # problem because the exact names of the sub-directories concerned is
3280 # unimportant, just the number of them matters.
3282 # The practical upshot of these patterns is like this:
3284 # prefix exec_prefix result
3285 # ------ ----------- ------
3287 # /foo/ /foo/bar ../
3288 # /foo /foo/bar/ ../
3289 # /foo/ /foo/bar/ ../
3290 # /foo /foo/bar/ugg ../../
3293 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3294 changequote([, ])dnl
3296 AC_SUBST(gcc_tooldir)
3299 # Find a directory in which to install a shared libgcc.
3301 AC_ARG_ENABLE(version-specific-runtime-libs,
3302 [ --enable-version-specific-runtime-libs
3303 specify that runtime libraries should be
3304 installed in a compiler-specific directory])
3306 AC_ARG_WITH(slibdir,
3307 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3308 slibdir="$with_slibdir",
3309 if test "${enable_version_specific_runtime_libs+set}" = set; then
3310 slibdir='$(libsubdir)'
3311 elif test "$host" != "$target"; then
3312 slibdir='$(build_tooldir)/lib'
3318 objdir=`${PWDCMD-pwd}`
3321 # Substitute configuration variables
3324 AC_SUBST(all_boot_languages)
3325 AC_SUBST(all_compilers)
3326 AC_SUBST(all_gtfiles)
3327 AC_SUBST(all_gtfiles_files_langs)
3328 AC_SUBST(all_gtfiles_files_files)
3329 AC_SUBST(all_lang_makefrags)
3330 AC_SUBST(all_lang_makefiles)
3331 AC_SUBST(all_languages)
3332 AC_SUBST(all_stagestuff)
3333 AC_SUBST(build_exeext)
3334 AC_SUBST(build_install_headers_dir)
3335 AC_SUBST(build_xm_file_list)
3336 AC_SUBST(build_xm_include_list)
3337 AC_SUBST(build_xm_defines)
3338 AC_SUBST(check_languages)
3339 AC_SUBST(cc_set_by_configure)
3340 AC_SUBST(quoted_cc_set_by_configure)
3341 AC_SUBST(cpp_install_dir)
3342 AC_SUBST(xmake_file)
3343 AC_SUBST(tmake_file)
3344 AC_SUBST(extra_gcc_objs)
3345 AC_SUBST(extra_headers_list)
3346 AC_SUBST(extra_objs)
3347 AC_SUBST(extra_parts)
3348 AC_SUBST(extra_passes)
3349 AC_SUBST(extra_programs)
3350 AC_SUBST(float_h_file)
3351 AC_SUBST(gcc_config_arguments)
3352 AC_SUBST(gcc_gxx_include_dir)
3353 AC_SUBST(libstdcxx_incdir)
3354 AC_SUBST(host_exeext)
3355 AC_SUBST(host_xm_file_list)
3356 AC_SUBST(host_xm_include_list)
3357 AC_SUBST(host_xm_defines)
3358 AC_SUBST(out_host_hook_obj)
3360 AC_SUBST(lang_opt_files)
3361 AC_SUBST(lang_specs_files)
3362 AC_SUBST(lang_tree_files)
3363 AC_SUBST(local_prefix)
3365 AC_SUBST(objc_boehm_gc)
3367 AC_SUBST(out_object_file)
3368 AC_SUBST(stage_prefix_set_by_configure)
3369 AC_SUBST(quoted_stage_prefix_set_by_configure)
3370 AC_SUBST(thread_file)
3371 AC_SUBST(tm_file_list)
3372 AC_SUBST(tm_include_list)
3373 AC_SUBST(tm_defines)
3374 AC_SUBST(tm_p_file_list)
3375 AC_SUBST(tm_p_include_list)
3376 AC_SUBST(xm_file_list)
3377 AC_SUBST(xm_include_list)
3378 AC_SUBST(xm_defines)
3379 AC_SUBST(c_target_objs)
3380 AC_SUBST(cxx_target_objs)
3381 AC_SUBST(target_cpu_default)
3383 AC_SUBST_FILE(language_hooks)
3386 if test x${build} = x${host} ; then
3387 if test x${host} = x${target} ; then
3388 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3390 echo "Links are now set up to build a cross-compiler" 1>&2
3391 echo " from ${host} to ${target}." 1>&2
3394 if test x${host} = x${target} ; then
3395 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3396 echo " for ${target}." 1>&2
3398 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3399 echo " from ${host} to ${target}." 1>&2
3403 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3404 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3406 # Configure the subdirectories
3407 # AC_CONFIG_SUBDIRS($subdirs)
3409 # Create the Makefile
3410 # and configure language subdirectories
3411 AC_CONFIG_FILES($all_outputs)
3413 AC_CONFIG_COMMANDS([default],
3415 case ${CONFIG_HEADERS} in
3416 *auto-host.h:config.in*)
3419 # Make sure all the subdirs exist.
3420 for d in $subdirs doc build
3422 test -d $d || mkdir $d
3424 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3425 # bootstrapping and the installation procedure can still use
3426 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3427 # FLAGS_TO_PASS has been modified to solve the problem there.
3428 # This is virtually a duplicate of what happens in configure.lang; we do
3429 # an extra check to make sure this only happens if ln -s can be used.
3432 for d in ${subdirs} ; do
3433 STARTDIR=`${PWDCMD-pwd}`
3435 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3438 $LN_S ../$t $t 2>/dev/null
3445 [subdirs='$subdirs'])