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
1800 elif test -x "$AS_FOR_TARGET"; then
1801 gcc_cv_as="$AS_FOR_TARGET"
1802 elif test -x "$AS" && test x$host = x$target; then
1806 gcc_AC_CHECK_TOOL(gcc_cv_as, as, ORIGINAL_AS_FOR_TARGET)
1807 AC_MSG_CHECKING(what assembler to use)
1808 case $in_tree_gas in
1810 AC_MSG_RESULT("newly built gas")
1813 AC_MSG_RESULT($gcc_cv_as)
1817 # Identify the linker which will work hand-in-glove with the newly
1818 # built GCC, so that we can examine its features. This is the linker
1819 # which will be driven by the driver program.
1821 # If build != host, and we aren't building gas in-tree, we identify a
1822 # build->target linker and hope that it will have the same features
1823 # as the host->target linker we'll be using.
1826 gcc_cv_gld_major_version=
1827 gcc_cv_gld_minor_version=
1828 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1829 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1830 if test -x "$DEFAULT_LINKER"; then
1831 gcc_cv_ld="$DEFAULT_LINKER"
1832 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1833 && test -f ../ld/Makefile \
1834 && test x$build = x$host; then
1835 # Single tree build which includes ld. We want to prefer it
1836 # over whatever linker top-level may have detected, since
1837 # we'll use what we're building after installation anyway.
1839 in_tree_ld_is_elf=no
1840 if (grep 'EMUL = .*elf' ../ld/Makefile \
1841 || grep 'EMUL = .*linux' ../ld/Makefile \
1842 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1843 in_tree_ld_is_elf=yes
1845 for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
1848 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1850 if test x$gcc_cv_gld_version != x; then
1855 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1856 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1858 gcc_cv_ld=../ld/ld-new$build_exeext
1859 elif test -x collect-ld$build_exeext; then
1860 # Build using linker in the current directory.
1861 gcc_cv_ld=./collect-ld$build_exeext
1862 elif test -x "$LD_FOR_TARGET"; then
1863 gcc_cv_ld="$LD_FOR_TARGET"
1864 elif test -x "$LD" && test x$host = x$target; then
1868 gcc_AC_CHECK_TOOL(gcc_cv_ld, ld, ORIGINAL_LD_FOR_TARGET)
1869 AC_MSG_CHECKING(what linker to use)
1872 AC_MSG_RESULT("newly built ld")
1875 AC_MSG_RESULT($gcc_cv_ld)
1879 # Figure out what nm we will be using.
1880 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1883 if test -f $gcc_cv_binutils_srcdir/configure.in \
1884 && test -f ../binutils/Makefile; then
1885 # Single tree build which includes binutils.
1887 gcc_cv_nm=../binutils/nm-new$build_exeext
1888 elif test -x nm$build_exeext; then
1889 gcc_cv_nm=./nm$build_exeext
1892 gcc_AC_CHECK_TOOL(gcc_cv_nm, nm, ORIGINAL_NM_FOR_TARGET)
1893 AC_MSG_CHECKING(what nm to use)
1895 yes) AC_MSG_RESULT("newly built nm") ;;
1896 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1899 # Figure out what objdump we will be using.
1900 AC_MSG_CHECKING(what objdump to use)
1902 if test -x objdump$build_exeext; then
1903 gcc_cv_objdump=./objdump$build_exeext
1904 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1905 && test -f ../binutils/Makefile; then
1906 # Single tree build which includes binutils.
1908 gcc_cv_objdump=../binutils/objdump$build_exeext
1909 elif test "x$program_prefix" != xNONE; then
1910 gcc_cv_objdump=${program_prefix}objdump$build_exeext
1911 elif test x$build != x$host && test x$build != x$target; then
1912 gcc_cv_objdump=${target_noncanonical}-objdump$build_exeext
1914 gcc_cv_objdump=`echo objdump | \
1915 sed "${program_transform_name}"`$build_exeext
1917 case $in_tree_objdump in
1918 yes) AC_MSG_RESULT("newly built objdump") ;;
1919 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1922 # Figure out what assembler alignment features are present.
1923 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1927 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1928 [Define if your assembler supports .balign and .p2align.])])
1930 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1933 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1934 [Define if your assembler supports specifying the maximum number
1935 of bytes to skip when using the GAS .p2align command.])])
1937 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1939 [conftest_label1: .word 0
1941 conftest_label2: .word 0
1943 [if test x$gcc_cv_nm != x; then
1944 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1945 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1946 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1948 else gcc_cv_as_subsection_m1=yes
1950 rm -f conftest.nm1 conftest.nm2
1952 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1953 [Define if your assembler supports .subsection and .subsection -1 starts
1954 emitting at the beginning of your section.])])
1956 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1959 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1961 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
1964 .NSUBSPA $CODE$,COMDAT],,
1965 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
1967 # .hidden needs to be supported in both the assembler and the linker,
1968 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1969 # This is irritatingly difficult to feature test for; we have to check the
1970 # date string after the version number. If we've got an in-tree
1971 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1973 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1974 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1979 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1980 [if test $in_tree_ld = yes ; then
1982 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1983 && test $in_tree_ld_is_elf = yes; then
1984 gcc_cv_ld_hidden=yes
1987 gcc_cv_ld_hidden=yes
1988 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1989 if echo "$ld_ver" | grep GNU > /dev/null; then
1991 ld_vers=`echo $ld_ver | sed -n \
1992 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1993 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1994 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1995 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1996 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1997 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1998 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1999 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2000 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2001 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2002 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2003 if test 0"$ld_date" -lt 20020404; then
2004 if test -n "$ld_date"; then
2005 # If there was date string, but was earlier than 2002-04-04, fail
2007 elif test -z "$ld_vers"; then
2008 # If there was no date string nor ld version number, something is wrong
2011 test -z "$ld_vers_patch" && ld_vers_patch=0
2012 if test "$ld_vers_major" -lt 2; then
2014 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2015 gcc_cv_ld_hidden="no"
2016 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2024 hppa64*-*-hpux* | ia64*-*-hpux*)
2025 gcc_cv_ld_hidden=yes
2033 libgcc_visibility=no
2034 AC_SUBST(libgcc_visibility)
2035 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2036 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2037 libgcc_visibility=yes
2038 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2039 [Define if your assembler and linker support .hidden.])
2042 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2043 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2051 [# GAS versions before 2.11 do not support uleb128,
2052 # despite appearing to.
2053 # ??? There exists an elf-specific test that will crash
2054 # the assembler. Perhaps it's better to figure out whether
2055 # arbitrary sections are supported and try the test.
2056 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2057 if echo "$as_ver" | grep GNU > /dev/null; then
2059 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2060 as_major=`echo $as_ver | sed 's/\..*//'`
2061 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2063 if test $as_major -eq 2 && test $as_minor -lt 11
2065 else gcc_cv_as_leb128=yes
2068 [AC_DEFINE(HAVE_AS_LEB128, 1,
2069 [Define if your assembler supports .sleb128 and .uleb128.])])
2071 # GAS versions up to and including 2.11.0 may mis-optimize
2073 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2081 .section .eh_frame,"aw",@progbits
2083 .4byte .LECIE1-.LSCIE1
2097 .4byte .LEFDE1-.LASFDE1
2099 .4byte .LASFDE1-__FRAME_BEGIN__
2107 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2108 cat > conftest.lit <<EOF
2109 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2110 0010 01000000 12000000 18000000 00000000 ................
2111 0020 08000000 04080000 0044 .........D @&t@
2113 cat > conftest.big <<EOF
2114 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2115 0010 00000001 00000012 00000018 00000000 ................
2116 0020 00000008 04000000 0844 .........D @&t@
2118 # If the assembler didn't choke, and we can objdump,
2119 # and we got the correct data, then succeed.
2120 if test x$gcc_cv_objdump != x \
2121 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2122 | tail -3 > conftest.got \
2123 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2124 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2126 gcc_cv_as_eh_frame=yes
2127 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2128 gcc_cv_as_eh_frame=buggy
2130 # Uh oh, what do we do now?
2131 gcc_cv_as_eh_frame=no
2134 if test $gcc_cv_as_eh_frame = buggy; then
2135 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2136 [Define if your assembler mis-optimizes .eh_frame data.])
2139 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2140 [elf,2,12,0], [--fatal-warnings],
2141 [.section .rodata.str, "aMS", @progbits, 1])
2142 if test $gcc_cv_as_shf_merge = no; then
2143 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2144 [elf,2,12,0], [--fatal-warnings],
2145 [.section .rodata.str, "aMS", %progbits, 1])
2147 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2148 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2149 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2151 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2152 [elf,2,16,0], [--fatal-warnings],
2153 [.section .text,"axG",@progbits,.foo,comdat])
2154 if test $gcc_cv_as_comdat_group = yes; then
2155 gcc_cv_as_comdat_group_percent=no
2157 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2158 [elf,2,16,0], [--fatal-warnings],
2159 [.section .text,"axG",%progbits,.foo,comdat])
2161 if test $in_tree_ld != yes && test x"$ld_vers" != x; then
2163 if test 0"$ld_date" -lt 20050308; then
2164 if test -n "$ld_date"; then
2165 # If there was date string, but was earlier than 2005-03-08, fail
2167 elif test "$ld_vers_major" -lt 2; then
2169 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2173 if test $comdat_group = no; then
2174 gcc_cv_as_comdat_group=no
2175 gcc_cv_as_comdat_group_percent=no
2178 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
2179 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2180 [Define 0/1 if your assembler and linker support COMDAT groups.])
2182 # Thread-local storage - the check is heavily parametrized.
2191 .section ".tdata","awT",@progbits
2194 ldq $27,__tls_get_addr($29) !literal!1
2195 lda $16,foo($29) !tlsgd!1
2196 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2197 ldq $27,__tls_get_addr($29) !literal!2
2198 lda $16,foo($29) !tlsldm!2
2199 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2200 ldq $1,foo($29) !gotdtprel
2201 ldah $2,foo($29) !dtprelhi
2202 lda $3,foo($2) !dtprello
2203 lda $4,foo($29) !dtprel
2204 ldq $1,foo($29) !gottprel
2205 ldah $2,foo($29) !tprelhi
2206 lda $3,foo($2) !tprello
2207 lda $4,foo($29) !tprel'
2210 tls_as_opt=--fatal-warnings
2214 .section ".tdata","awT",@progbits
2226 .section ".tdata","awT",@progbits
2230 addil LT%foo-$tls_gdidx$,gp
2231 ldo RT%foo-$tls_gdidx$(%r1),%arg0
2234 addil LT%foo-$tls_ldidx$,gp
2236 ldo RT%foo-$tls_ldidx$(%r1),%arg0
2237 addil LR%foo-$tls_dtpoff$,%ret0
2238 ldo RR%foo-$tls_dtpoff$(%r1),%t1
2240 addil LT%foo-$tls_ieoff$,gp
2241 ldw RT%foo-$tls_ieoff$(%r1),%t2
2244 addil LR%foo-$tls_leoff$,%t1
2245 ldo RR%foo-$tls_leoff$(%r1),%t2'
2248 tls_as_opt=--fatal-warnings
2252 .section ".tdata","awT",@progbits
2256 leal foo@TLSGD(,%ebx,1), %eax
2257 leal foo@TLSLDM(%ebx), %eax
2258 leal foo@DTPOFF(%eax), %edx
2259 movl foo@GOTTPOFF(%ebx), %eax
2260 subl foo@GOTTPOFF(%ebx), %eax
2261 addl foo@GOTNTPOFF(%ebx), %eax
2262 movl foo@INDNTPOFF, %eax
2263 movl $foo@TPOFF, %eax
2264 subl $foo@TPOFF, %eax
2265 leal foo@NTPOFF(%ecx), %eax'
2268 tls_as_opt=--fatal-warnings
2272 .section ".tdata","awT",@progbits
2276 leaq foo@TLSGD(%rip), %rdi
2277 leaq foo@TLSLD(%rip), %rdi
2278 leaq foo@DTPOFF(%rax), %rdx
2279 movq foo@GOTTPOFF(%rip), %rax
2280 movq $foo@TPOFF, %rax'
2283 tls_as_opt=--fatal-warnings
2287 .section ".tdata","awT",@progbits
2290 addl r16 = @ltoff(@dtpmod(foo#)), gp
2291 addl r17 = @ltoff(@dtprel(foo#)), gp
2292 addl r18 = @ltoff(@tprel(foo#)), gp
2293 addl r19 = @dtprel(foo#), gp
2294 adds r21 = @dtprel(foo#), r13
2295 movl r23 = @dtprel(foo#)
2296 addl r20 = @tprel(foo#), gp
2297 adds r22 = @tprel(foo#), r13
2298 movl r24 = @tprel(foo#)'
2301 tls_as_opt=--fatal-warnings
2305 .section .tdata,"awT",@progbits
2309 addiu $4, $28, %tlsgd(x)
2310 addiu $4, $28, %tlsldm(x)
2311 lui $4, %dtprel_hi(x)
2312 addiu $4, $4, %dtprel_lo(x)
2313 lw $4, %gottprel(x)($28)
2314 lui $4, %tprel_hi(x)
2315 addiu $4, $4, %tprel_lo(x)'
2318 tls_as_opt='-32 --fatal-warnings'
2322 .section ".tdata","awT",@progbits
2330 addi 3,31,ld0@got@tlsgd
2332 addi 3,31,x1@got@tlsld
2335 addis 9,3,x2@dtprel@ha
2336 addi 9,9,x2@dtprel@l
2337 lwz 9,x3@got@tprel(31)
2340 addis 9,2,x2@tprel@ha
2341 addi 9,9,x2@tprel@l'
2344 tls_as_opt="-a32 --fatal-warnings"
2348 .section ".tdata","awT",@progbits
2356 addi 3,2,ld0@got@tlsgd
2362 addi 3,2,x1@got@tlsld
2368 addis 9,3,x2@dtprel@ha
2369 addi 9,9,x2@dtprel@l
2372 ld 9,x3@got@dtprel(2)
2378 tls_as_opt="-a64 --fatal-warnings"
2382 .section ".tdata","awT",@progbits
2391 l %r1,foo@GOTNTPOFF(%r12)
2392 l %r1,0(%r1):tls_load:foo
2393 bas %r14,0(%r1,%r13):tls_gdcall:foo
2394 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2397 tls_as_opt="-m31 --fatal-warnings"
2401 .section ".tdata","awT",@progbits
2409 lg %r1,foo@GOTNTPOFF(%r12)
2410 larl %r1,foo@INDNTPOFF
2411 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2412 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2415 tls_as_opt="-m64 -Aesame --fatal-warnings"
2417 sh-*-* | sh[34]-*-*)
2419 .section ".tdata","awT",@progbits
2429 tls_as_opt=--fatal-warnings
2433 sparc*-sun-solaris2.*)
2440 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2442 .section ".tdata",#alloc,#write,#tls
2445 sethi %tgd_hi22(foo), %o0
2446 add %o0, %tgd_lo10(foo), %o1
2447 add %l7, %o1, %o0, %tgd_add(foo)
2448 call __tls_get_addr, %tgd_call(foo)
2449 sethi %tldm_hi22(foo), %l1
2450 add %l1, %tldm_lo10(foo), %l2
2451 add %l7, %l2, %o0, %tldm_add(foo)
2452 call __tls_get_addr, %tldm_call(foo)
2453 sethi %tldo_hix22(foo), %l3
2454 xor %l3, %tldo_lox10(foo), %l4
2455 add %o0, %l4, %l5, %tldo_add(foo)
2456 sethi %tie_hi22(foo), %o3
2457 add %o3, %tie_lo10(foo), %o3
2458 ld [%l7 + %o3], %o2, %tie_ld(foo)
2459 add %g7, %o2, %o4, %tie_add(foo)
2460 sethi %tle_hix22(foo), %l1
2461 xor %l1, %tle_lox10(foo), %o5
2462 ld [%g7 + %o5], %o1'
2467 .section ".tdata","awT",@progbits
2470 sethi %tgd_hi22(foo), %o0
2471 add %o0, %tgd_lo10(foo), %o1
2472 add %l7, %o1, %o0, %tgd_add(foo)
2473 call __tls_get_addr, %tgd_call(foo)
2474 sethi %tldm_hi22(foo), %l1
2475 add %l1, %tldm_lo10(foo), %l2
2476 add %l7, %l2, %o0, %tldm_add(foo)
2477 call __tls_get_addr, %tldm_call(foo)
2478 sethi %tldo_hix22(foo), %l3
2479 xor %l3, %tldo_lox10(foo), %l4
2480 add %o0, %l4, %l5, %tldo_add(foo)
2481 sethi %tie_hi22(foo), %o3
2482 add %o3, %tie_lo10(foo), %o3
2483 ld [%l7 + %o3], %o2, %tie_ld(foo)
2484 add %g7, %o2, %o4, %tie_add(foo)
2485 sethi %tle_hix22(foo), %l1
2486 xor %l1, %tle_lox10(foo), %o5
2487 ld [%g7 + %o5], %o1'
2490 tls_as_opt="-32 --fatal-warnings"
2495 if test -z "$tls_first_major"; then
2496 : # If we don't have a check, assume no support.
2498 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2499 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2500 [AC_DEFINE(HAVE_AS_TLS, 1,
2501 [Define if your assembler supports thread-local storage.])])
2504 # Target-specific assembler checks.
2506 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2507 gcc_cv_ld_static_dynamic=no
2508 if test $in_tree_ld = yes ; then
2509 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2510 gcc_cv_ld_static_dynamic=yes
2512 elif test x$gcc_cv_ld != x; then
2513 # Check if linker supports -Bstatic/-Bdynamic option
2514 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2515 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2516 gcc_cv_ld_static_dynamic=yes
2519 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2520 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2521 [Define if your linker supports -Bstatic/-Bdynamic option.])
2523 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2525 if test x"$demangler_in_ld" = xyes; then
2526 AC_MSG_CHECKING(linker --demangle support)
2527 gcc_cv_ld_demangle=no
2528 if test $in_tree_ld = yes; then
2529 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2530 gcc_cv_ld_demangle=yes
2532 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2533 # Check if the GNU linker supports --demangle option
2534 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2535 gcc_cv_ld_demangle=yes
2538 if test x"$gcc_cv_ld_demangle" = xyes; then
2539 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2540 [Define if your linker supports --demangle option.])
2542 AC_MSG_RESULT($gcc_cv_ld_demangle)
2546 # All TARGET_ABI_OSF targets.
2547 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2548 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2549 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2552 extbl $3, $2, $3 !lituse_bytoff!1
2553 ldq $2, a($29) !literal!1
2554 ldq $4, b($29) !literal!2
2555 ldq_u $3, 0($2) !lituse_base!1
2556 ldq $27, f($29) !literal!5
2557 jsr $26, ($27), f !lituse_jsr!5
2558 ldah $29, 0($26) !gpdisp!3
2559 lda $0, c($29) !gprel
2560 ldah $1, d($29) !gprelhigh
2561 lda $1, d($1) !gprellow
2562 lda $29, 0($29) !gpdisp!3],,
2563 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2564 [Define if your assembler supports explicit relocations.])])
2565 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2566 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2569 ldq $27, a($29) !literal!1
2570 jsr $26, ($27), a !lituse_jsrdirect!1],,
2571 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2572 [Define if your assembler supports the lituse_jsrdirect relocation.])])
2576 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2577 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2578 [-no-mul-bug-abort], [.text],,
2579 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2580 [Define if your assembler supports the -no-mul-bug-abort option.])])
2584 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2585 [.register %g2, #scratch],,
2586 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2587 [Define if your assembler supports .register.])])
2589 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2591 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2592 [Define if your assembler supports -relax option.])])
2594 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2595 gcc_cv_as_sparc_ua_pcrel,,
2603 .uaword %r_disp32(foo)],
2604 [if test x$gcc_cv_ld != x \
2605 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2606 gcc_cv_as_sparc_ua_pcrel=yes
2609 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2610 [Define if your assembler and linker support unaligned PC relative relocs.])
2612 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2613 gcc_cv_as_sparc_ua_pcrel_hidden,,
2618 .uaword %r_disp32(foo)
2619 .byte 0x32, 0x33, 0x34
2624 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2625 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2626 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2627 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2628 if $gcc_cv_objdump -R conftest 2> /dev/null \
2629 | grep 'DISP32' > /dev/null 2>&1; then
2632 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2636 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2637 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2638 ]) # unaligned pcrel relocs
2640 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2641 gcc_cv_as_sparc_offsetable_lo10,,
2644 or %g1, %lo(ab) + 12, %g1
2645 or %g1, %lo(ab + 12), %g1],
2646 [if test x$gcc_cv_objdump != x \
2647 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2648 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2649 gcc_cv_as_sparc_offsetable_lo10=yes
2651 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2652 [Define if your assembler supports offsetable %lo().])])
2656 i[34567]86-*-* | x86_64-*-*)
2659 cygwin* | pe | mingw32*)
2660 # Used for DWARF 2 in PE
2661 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2662 gcc_cv_as_ix86_pe_secrel32,
2668 [if test x$gcc_cv_ld != x \
2669 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2670 gcc_cv_as_ix86_pe_secrel32=yes
2673 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2674 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2678 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2679 gcc_cv_as_ix86_filds_fists,
2680 [2,9,0],, [filds mem; fists mem],,
2681 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2682 [Define if your assembler uses the new HImode fild and fist notation.])])
2684 gcc_GAS_CHECK_FEATURE([cmov syntax],
2685 gcc_cv_as_ix86_cmov_sun_syntax,,,
2686 [cmovl.l %edx, %eax],,
2687 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2688 [Define if your assembler supports the Sun syntax for cmov.])])
2690 # This one is used unconditionally by i386.[ch]; it is to be defined
2691 # to 1 if the feature is present, 0 otherwise.
2692 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2693 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2699 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2700 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2701 [Define true if the assembler supports '.long foo@GOTOFF'.])
2705 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2706 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2708 addl r15 = @ltoffx(x#), gp
2710 ld8.mov r16 = [[r15]], x#],,
2711 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2712 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2718 *-*-aix*) conftest_s=' .machine "pwr5"
2722 gcc_GAS_CHECK_FEATURE([.machine directive support],
2723 gcc_cv_as_machine_directive,,,
2724 [ .machine ppc7400])
2725 if test x$gcc_cv_as_machine_directive != xyes; then
2726 echo "*** This target requires an assembler supporting \".machine\"" >&2
2727 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2728 test x$build = x$target && exit 1
2732 *) conftest_s=' .machine power4
2737 gcc_GAS_CHECK_FEATURE([mfcr field support],
2738 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2740 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2741 [Define if your assembler supports mfcr field.])])
2744 *-*-aix*) conftest_s=' .machine "pwr5"
2747 *) conftest_s=' .machine power5
2752 gcc_GAS_CHECK_FEATURE([popcntb support],
2753 gcc_cv_as_powerpc_popcntb, [2,17,0],,
2755 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
2756 [Define if your assembler supports popcntb field.])])
2759 *-*-aix*) conftest_s=' .csect .text[[PR]]
2761 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
2765 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
2766 *) conftest_s=' .text
2768 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
2771 gcc_GAS_CHECK_FEATURE([rel16 relocs],
2772 gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
2774 [AC_DEFINE(HAVE_AS_REL16, 1,
2775 [Define if your assembler supports R_PPC_REL16 relocs.])])
2779 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2780 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2781 [ lw $4,%gp_rel(foo)($4)],,
2782 [if test x$target_cpu_default = x
2783 then target_cpu_default=MASK_EXPLICIT_RELOCS
2784 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2787 if test x$gas_flag = xyes \
2788 || test x"$host" != x"$build" \
2789 || test ! -x "$gcc_cv_as" \
2790 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2793 echo "*** This configuration requires the GNU assembler" >&2
2798 # ??? Not all targets support dwarf2 debug_line, even within a version
2799 # of gas. Moreover, we need to emit a valid instruction to trigger any
2800 # info to the output file. So, as supported targets are added to gas 2.11,
2801 # add some instruction here to (also) show we expect this might work.
2802 # ??? Once 2.11 is released, probably need to add first known working
2803 # version to the per-target configury.
2805 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2806 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2807 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2810 ia64*-*-* | s390*-*-*)
2817 if test x"$insn" != x; then
2819 .file 1 \"conftest.s\"
2822 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2823 gcc_cv_as_dwarf2_debug_line,
2824 [elf,2,11,0],, [$conftest_s],
2825 [if test x$gcc_cv_objdump != x \
2826 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2827 | grep debug_line > /dev/null 2>&1; then
2828 gcc_cv_as_dwarf2_debug_line=yes
2831 # The .debug_line file table must be in the exact order that
2832 # we specified the files, since these indices are also used
2833 # by DW_AT_decl_file. Approximate this test by testing if
2834 # the assembler bitches if the same index is assigned twice.
2835 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2836 gcc_cv_as_dwarf2_file_buggy,,,
2840 if test $gcc_cv_as_dwarf2_debug_line = yes \
2841 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2842 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2843 [Define if your assembler supports dwarf2 .file/.loc directives,
2844 and preserves file table indices exactly as given.])
2847 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2848 gcc_cv_as_gdwarf2_flag,
2849 [elf,2,11,0], [--gdwarf2], [$insn],,
2850 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2851 [Define if your assembler supports the --gdwarf2 option.])])
2853 gcc_GAS_CHECK_FEATURE([--gstabs option],
2854 gcc_cv_as_gstabs_flag,
2855 [elf,2,11,0], [--gstabs], [$insn],
2856 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2857 # and warns about it, but still exits successfully. So check for
2859 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2861 else gcc_cv_as_gstabs_flag=yes
2863 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2864 [Define if your assembler supports the --gstabs option.])])
2867 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2868 gcc_cv_ld_ro_rw_mix=unknown
2869 if test $in_tree_ld = yes ; then
2870 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2871 && test $in_tree_ld_is_elf = yes; then
2872 gcc_cv_ld_ro_rw_mix=read-write
2874 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2875 echo '.section myfoosect, "a"' > conftest1.s
2876 echo '.section myfoosect, "aw"' > conftest2.s
2877 echo '.byte 1' >> conftest2.s
2878 echo '.section myfoosect, "a"' > conftest3.s
2879 echo '.byte 0' >> conftest3.s
2880 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2881 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2882 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2883 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2884 conftest2.o conftest3.o > /dev/null 2>&1; then
2885 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2886 | sed -e '/myfoosect/!d' -e N`
2887 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2888 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2889 gcc_cv_ld_ro_rw_mix=read-only
2891 gcc_cv_ld_ro_rw_mix=read-write
2896 rm -f conftest.* conftest[123].*
2899 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2900 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2901 [Define if your linker links a mix of read-only
2902 and read-write sections into a read-write section.])
2904 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2906 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2907 gcc_cv_ld_eh_frame_hdr=no
2908 if test $in_tree_ld = yes ; then
2909 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2910 && test $in_tree_ld_is_elf = yes; then
2911 gcc_cv_ld_eh_frame_hdr=yes
2913 elif test x$gcc_cv_ld != x; then
2914 # Check if linker supports --eh-frame-hdr option
2915 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2916 gcc_cv_ld_eh_frame_hdr=yes
2919 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
2920 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2921 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2922 [Define if your linker supports --eh-frame-hdr option.])
2924 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2926 AC_MSG_CHECKING(linker position independent executable support)
2928 if test $in_tree_ld = yes ; then
2929 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2930 && test $in_tree_ld_is_elf = yes; then
2933 elif test x$gcc_cv_ld != x; then
2934 # Check if linker supports -pie option
2935 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2939 if test x"$gcc_cv_ld_pie" = xyes; then
2940 AC_DEFINE(HAVE_LD_PIE, 1,
2941 [Define if your linker supports -pie option.])
2943 AC_MSG_RESULT($gcc_cv_ld_pie)
2949 AC_CACHE_CHECK(linker --as-needed support,
2950 gcc_cv_ld_as_needed,
2951 [gcc_cv_ld_as_needed=no
2952 if test $in_tree_ld = yes ; then
2953 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2954 && test $in_tree_ld_is_elf = yes; then
2955 gcc_cv_ld_as_needed=yes
2957 elif test x$gcc_cv_ld != x; then
2958 # Check if linker supports --as-needed and --no-as-needed options
2959 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2960 gcc_cv_ld_as_needed=yes
2964 if test x"$gcc_cv_ld_as_needed" = xyes; then
2965 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2966 [Define if your linker supports --as-needed and --no-as-needed options.])
2969 case "$target:$tm_file" in
2970 powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
2971 AC_CACHE_CHECK(linker support for omitting dot symbols,
2972 gcc_cv_ld_no_dot_syms,
2973 [gcc_cv_ld_no_dot_syms=no
2974 if test $in_tree_ld = yes ; then
2975 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
2976 gcc_cv_ld_no_dot_syms=yes
2978 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
2979 cat > conftest1.s <<EOF
2983 cat > conftest2.s <<EOF
2984 .section ".opd","aw"
2989 .quad .LEfoo,.TOC.@tocbase,0
2995 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
2996 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
2997 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
2998 gcc_cv_ld_no_dot_syms=yes
3000 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3003 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3004 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3005 [Define if your PowerPC64 linker only needs function descriptor syms.])
3010 AC_CACHE_CHECK(linker --sysroot support,
3012 [gcc_cv_ld_sysroot=no
3013 if test $in_tree_ld = yes ; then
3014 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
3015 gcc_cv_ld_sysroot=yes
3017 elif test x$gcc_cv_ld != x; then
3018 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3019 gcc_cv_ld_sysroot=yes
3022 if test x"$gcc_cv_ld_sysroot" = xyes; then
3023 AC_DEFINE(HAVE_LD_SYSROOT, 1,
3024 [Define if your linker supports --sysroot.])
3027 if test x$with_sysroot = x && test x$host = x$target \
3028 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3029 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3030 [Define to PREFIX/include if cpp should also search that directory.])
3033 # Test for stack protector support in target C library.
3036 AC_CACHE_CHECK(__stack_chk_fail in target GNU C library,
3037 gcc_cv_libc_provides_ssp,
3038 [gcc_cv_libc_provides_ssp=no
3039 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3040 if test "x$with_sysroot" = x; then
3041 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3042 elif test "x$with_sysroot" = xyes; then
3043 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3045 glibc_header_dir="${with_sysroot}/usr/include"
3048 glibc_header_dir=/usr/include
3050 # glibc 2.4 and later provides __stack_chk_fail and
3051 # either __stack_chk_guard, or TLS access to stack guard canary.
3052 if test -f $glibc_header_dir/features.h \
3053 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
3054 $glibc_header_dir/features.h > /dev/null; then
3055 if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
3056 $glibc_header_dir/features.h > /dev/null; then
3057 gcc_cv_libc_provides_ssp=yes
3058 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
3059 $glibc_header_dir/features.h > /dev/null \
3060 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
3061 $glibc_header_dir/features.h > /dev/null; then
3062 gcc_cv_libc_provides_ssp=yes
3065 *) gcc_cv_libc_provides_ssp=no ;;
3067 if test x$gcc_cv_libc_provides_ssp = xyes; then
3068 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
3069 [Define if your target C library provides stack protector support])
3072 # Find out what GC implementation we want, or may, use.
3074 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3082 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3085 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3090 echo "Using $GGC for garbage collection."
3092 # Use the system's zlib library.
3094 zlibinc="-I\$(srcdir)/../zlib"
3095 AC_ARG_WITH(system-zlib,
3096 [ --with-system-zlib use installed libz],
3103 dnl Very limited version of automake's enable-maintainer-mode
3105 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3106 dnl maintainer-mode is disabled by default
3107 AC_ARG_ENABLE(maintainer-mode,
3108 [ --enable-maintainer-mode
3109 enable make rules and dependencies not useful
3110 (and sometimes confusing) to the casual installer],
3111 maintainer_mode=$enableval,
3114 AC_MSG_RESULT($maintainer_mode)
3116 if test "$maintainer_mode" = "yes"; then
3127 # Make empty files to contain the specs and options for each language.
3128 # Then add #include lines to for a compiler that has specs and/or options.
3133 for subdir in . $subdirs
3135 if test -f $srcdir/$subdir/lang.opt; then
3136 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3138 if test -f $srcdir/$subdir/lang-specs.h; then
3139 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3141 if test -f $srcdir/$subdir/$subdir-tree.def; then
3142 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3146 # These (without "all_") are set in each config-lang.in.
3147 # `language' must be a single word so is spelled singularly.
3152 all_outputs='Makefile gccbug mklibgcc libada-mk'
3153 # List of language makefile fragments.
3155 # List of language subdirectory makefiles. Deprecated.
3157 # Files for gengtype
3158 all_gtfiles="$target_gtfiles"
3159 # Files for gengtype with language
3160 all_gtfiles_files_langs=
3161 all_gtfiles_files_files=
3163 # Add the language fragments.
3164 # Languages are added via two mechanisms. Some information must be
3165 # recorded in makefile variables, these are defined in config-lang.in.
3166 # We accumulate them and plug them into the main Makefile.
3167 # The other mechanism is a set of hooks for each of the main targets
3168 # like `clean', `install', etc.
3170 language_hooks="Make-hooks"
3180 . ${srcdir}/$s/config-lang.in
3181 if test "x$language" = x
3183 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3186 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3187 if test -f ${srcdir}/$s/Makefile.in
3188 then all_lang_makefiles="$s/Makefile"
3190 all_languages="$all_languages $language"
3191 if test "x$boot_language" = xyes
3193 all_boot_languages="$all_boot_languages $language"
3195 all_compilers="$all_compilers $compilers"
3196 all_stagestuff="$all_stagestuff $stagestuff"
3197 all_outputs="$all_outputs $outputs"
3198 all_gtfiles="$all_gtfiles $gtfiles"
3201 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3202 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3206 # Pick up gtfiles for c
3209 . ${srcdir}/c-config-lang.in
3210 all_gtfiles="$all_gtfiles $gtfiles"
3213 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3214 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3218 for language in $all_languages
3220 check_languages="$check_languages check-$language"
3223 # We link each language in with a set of hooks, reached indirectly via
3228 target_list="all.build all.cross start.encap rest.encap tags \
3229 install-normal install-common install-man \
3230 uninstall info man srcextra srcman srcinfo \
3231 mostlyclean clean distclean maintainer-clean \
3232 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3233 for t in $target_list
3236 for lang in $all_languages
3240 echo "lang.$t: $x" >> Make-hooks
3249 echo "dir ." > .gdbinit
3250 echo "dir ${srcdir}" >> .gdbinit
3251 if test x$gdb_needs_out_file_path = xyes
3253 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3255 if test "x$subdirs" != x; then
3258 echo "dir ${srcdir}/$s" >> .gdbinit
3261 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3263 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3264 # absolute path for gcc_tooldir based on inserting the number of up-directory
3265 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3266 # $(libsubdir)/@(unlibsubdir) based path.
3267 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3268 # make and thus we'd get different behavior depending on where we built the
3270 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3271 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3273 changequote(<<, >>)dnl
3274 # An explanation of the sed strings:
3275 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3276 # -e 's|/$||' match a trailing forward slash and eliminates it
3277 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3278 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3280 # (*) Note this pattern overwrites the first character of the string
3281 # with a forward slash if one is not already present. This is not a
3282 # problem because the exact names of the sub-directories concerned is
3283 # unimportant, just the number of them matters.
3285 # The practical upshot of these patterns is like this:
3287 # prefix exec_prefix result
3288 # ------ ----------- ------
3290 # /foo/ /foo/bar ../
3291 # /foo /foo/bar/ ../
3292 # /foo/ /foo/bar/ ../
3293 # /foo /foo/bar/ugg ../../
3296 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3297 changequote([, ])dnl
3299 AC_SUBST(gcc_tooldir)
3302 # Find a directory in which to install a shared libgcc.
3304 AC_ARG_ENABLE(version-specific-runtime-libs,
3305 [ --enable-version-specific-runtime-libs
3306 specify that runtime libraries should be
3307 installed in a compiler-specific directory])
3309 AC_ARG_WITH(slibdir,
3310 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3311 slibdir="$with_slibdir",
3312 if test "${enable_version_specific_runtime_libs+set}" = set; then
3313 slibdir='$(libsubdir)'
3314 elif test "$host" != "$target"; then
3315 slibdir='$(build_tooldir)/lib'
3321 objdir=`${PWDCMD-pwd}`
3324 # Substitute configuration variables
3327 AC_SUBST(all_boot_languages)
3328 AC_SUBST(all_compilers)
3329 AC_SUBST(all_gtfiles)
3330 AC_SUBST(all_gtfiles_files_langs)
3331 AC_SUBST(all_gtfiles_files_files)
3332 AC_SUBST(all_lang_makefrags)
3333 AC_SUBST(all_lang_makefiles)
3334 AC_SUBST(all_languages)
3335 AC_SUBST(all_stagestuff)
3336 AC_SUBST(build_exeext)
3337 AC_SUBST(build_install_headers_dir)
3338 AC_SUBST(build_xm_file_list)
3339 AC_SUBST(build_xm_include_list)
3340 AC_SUBST(build_xm_defines)
3341 AC_SUBST(check_languages)
3342 AC_SUBST(cc_set_by_configure)
3343 AC_SUBST(quoted_cc_set_by_configure)
3344 AC_SUBST(cpp_install_dir)
3345 AC_SUBST(xmake_file)
3346 AC_SUBST(tmake_file)
3347 AC_SUBST(extra_gcc_objs)
3348 AC_SUBST(extra_headers_list)
3349 AC_SUBST(extra_objs)
3350 AC_SUBST(extra_parts)
3351 AC_SUBST(extra_passes)
3352 AC_SUBST(extra_programs)
3353 AC_SUBST(float_h_file)
3354 AC_SUBST(gcc_config_arguments)
3355 AC_SUBST(gcc_gxx_include_dir)
3356 AC_SUBST(libstdcxx_incdir)
3357 AC_SUBST(host_exeext)
3358 AC_SUBST(host_xm_file_list)
3359 AC_SUBST(host_xm_include_list)
3360 AC_SUBST(host_xm_defines)
3361 AC_SUBST(out_host_hook_obj)
3363 AC_SUBST(lang_opt_files)
3364 AC_SUBST(lang_specs_files)
3365 AC_SUBST(lang_tree_files)
3366 AC_SUBST(local_prefix)
3368 AC_SUBST(objc_boehm_gc)
3370 AC_SUBST(out_object_file)
3371 AC_SUBST(stage_prefix_set_by_configure)
3372 AC_SUBST(quoted_stage_prefix_set_by_configure)
3373 AC_SUBST(thread_file)
3374 AC_SUBST(tm_file_list)
3375 AC_SUBST(tm_include_list)
3376 AC_SUBST(tm_defines)
3377 AC_SUBST(tm_p_file_list)
3378 AC_SUBST(tm_p_include_list)
3379 AC_SUBST(xm_file_list)
3380 AC_SUBST(xm_include_list)
3381 AC_SUBST(xm_defines)
3382 AC_SUBST(c_target_objs)
3383 AC_SUBST(cxx_target_objs)
3384 AC_SUBST(target_cpu_default)
3386 AC_SUBST_FILE(language_hooks)
3389 if test x${build} = x${host} ; then
3390 if test x${host} = x${target} ; then
3391 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3393 echo "Links are now set up to build a cross-compiler" 1>&2
3394 echo " from ${host} to ${target}." 1>&2
3397 if test x${host} = x${target} ; then
3398 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3399 echo " for ${target}." 1>&2
3401 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3402 echo " from ${host} to ${target}." 1>&2
3406 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3407 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3409 # Configure the subdirectories
3410 # AC_CONFIG_SUBDIRS($subdirs)
3412 # Create the Makefile
3413 # and configure language subdirectories
3414 AC_CONFIG_FILES($all_outputs)
3416 AC_CONFIG_COMMANDS([default],
3418 case ${CONFIG_HEADERS} in
3419 *auto-host.h:config.in*)
3422 # Make sure all the subdirs exist.
3423 for d in $subdirs doc build
3425 test -d $d || mkdir $d
3427 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3428 # bootstrapping and the installation procedure can still use
3429 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3430 # FLAGS_TO_PASS has been modified to solve the problem there.
3431 # This is virtually a duplicate of what happens in configure.lang; we do
3432 # an extra check to make sure this only happens if ln -s can be used.
3435 for d in ${subdirs} ; do
3436 STARTDIR=`${PWDCMD-pwd}`
3438 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3441 $LN_S ../$t $t 2>/dev/null
3448 [subdirs='$subdirs'])