2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
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],,
651 [ --enable-tls enable or disable generation of tls code
652 overriding the assembler check for tls support],
656 *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls.
657 Valid choices are 'yes' and 'no'.]) ;;
661 AC_ARG_ENABLE(objc-gc,
662 [ --enable-objc-gc enable the use of Boehm's garbage collector with
663 the GNU Objective-C runtime],
664 if test x$enable_objc_gc = xno; then
672 [ --with-dwarf2 force the default debug format to be DWARF 2],
673 dwarf2="$with_dwarf2",
676 AC_ARG_ENABLE(shared,
677 [ --disable-shared don't provide a shared libgcc],
679 case $enable_shared in
683 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
684 for pkg in $enableval; do
685 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
692 ], [enable_shared=yes])
693 AC_SUBST(enable_shared)
695 AC_ARG_WITH(build-sysroot,
696 [ --with-build-sysroot=sysroot
697 use sysroot as the system root during the build])
700 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
702 case ${with_sysroot} in
703 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
704 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
707 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
708 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
710 if test "x$exec_prefix" = xNONE; then
711 if test "x$prefix" = xNONE; then
712 test_prefix=/usr/local
717 test_prefix=$exec_prefix
719 case ${TARGET_SYSTEM_ROOT} in
720 "${test_prefix}"|"${test_prefix}/"*|\
721 '${exec_prefix}'|'${exec_prefix}/'*)
722 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
723 TARGET_SYSTEM_ROOT_DEFINE="$t"
728 TARGET_SYSTEM_ROOT_DEFINE=
729 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
731 AC_SUBST(TARGET_SYSTEM_ROOT)
732 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
733 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
735 # Build with intermodule optimisations
736 AC_ARG_ENABLE(intermodule,
737 [ --enable-intermodule build the compiler in one step],
738 [case ${enable_intermodule} in
739 yes) onestep="-onestep";;
745 # Sanity check enable_languages in case someone does not run the toplevel
746 # configure # script.
747 AC_ARG_ENABLE(languages,
748 [ --enable-languages=LIST specify which front-ends to build],
749 [case ,${enable_languages}, in
751 # go safe -- we cannot be much sure without the toplevel
753 # analysis of which target libs are present and usable
757 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
762 enable_languages=c,${enable_languages}
765 [enable_languages=c])
768 for lang in ${srcdir}/*/config-lang.in
771 # The odd quoting in the next line works around
772 # an apparent bug in bash 1.12 on linux.
774 ${srcdir}/[*]/config-lang.in) ;;
776 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
777 if test "x$lang_alias" = x
779 echo "$lang doesn't set \$language." 1>&2
782 case ",$enable_languages," in
784 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
792 # -------------------------
793 # Checks for other programs
794 # -------------------------
798 # Find some useful tools
800 # We need awk to create options.c and options.h.
801 # Bail out if it's missing.
803 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
811 # By default, the Darwin ranlib will not treat common symbols as
812 # definitions when building the archive table of contents. Other
813 # ranlibs do that; pass an option to the Darwin ranlib that makes
814 # it behave similarly.
820 AC_SUBST(ranlib_flags)
824 # See if cmp has --ignore-initial.
825 gcc_AC_PROG_CMP_IGNORE_INITIAL
827 # See if we have the mktemp command.
828 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
830 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
832 # See if makeinfo has been installed and is modern enough
833 # that we can use it.
834 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
835 [GNU texinfo.* \([0-9][0-9.]*\)],
836 [4.[2-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*])
837 if test $gcc_cv_prog_makeinfo_modern = no; then
838 MAKEINFO="$MISSING makeinfo"
840 *** Makeinfo is missing or too old.
841 *** Info documentation will not be built.])
848 # Is pod2man recent enough to regenerate manpages?
849 AC_MSG_CHECKING([for recent Pod::Man])
850 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
852 GENERATED_MANPAGES=generated-manpages
857 AC_SUBST(GENERATED_MANPAGES)
860 dnl Don't use AC_PROG_LEX; we insist on flex.
861 dnl LEXLIB is not useful in gcc.
862 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
865 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
867 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
868 # check for build == host before using them.
871 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
872 && test -d ../binutils ; then
873 NM='$(objdir)/../binutils/nm-new'
875 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
879 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
880 && test -d ../binutils ; then
881 AR='$(objdir)/../binutils/ar'
883 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
887 # --------------------
888 # Checks for C headers
889 # --------------------
891 AC_MSG_CHECKING(for GNU C library)
892 AC_CACHE_VAL(gcc_cv_glibc,
893 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
894 [[#include <features.h>]], [[
895 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
896 #error Not a GNU C library system
900 AC_MSG_RESULT($gcc_cv_glibc)
901 if test $gcc_cv_glibc = yes; then
902 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
905 # Need to reject headers which give warnings, so that the -Werror bootstrap
906 # works later. *sigh* This needs to come before all header checks.
913 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
914 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
915 sys/resource.h sys/param.h sys/times.h sys/stat.h \
916 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
918 # Check for thread headers.
919 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
920 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
922 # These tests can't be done till we know if we have limits.h.
930 # Stage specific cflags for build.
936 stage1_cflags="-Wa,-J"
942 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
943 # sources; use -no-cpp-precomp to get to GNU cpp.
944 # Apple's GCC has bugs in designated initializer handling, so disable
946 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
949 AC_SUBST(stage1_cflags)
951 # These libraries may be used by collect2.
952 # We may need a special search path to get them linked.
953 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
955 for libs in '' -lld -lmld \
956 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
957 '-L/usr/lib/cmplrs/cc3.11 -lmld'
960 AC_TRY_LINK_FUNC(ldopen,
961 [gcc_cv_collect2_libs="$libs"; break])
964 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
965 case $gcc_cv_collect2_libs in
967 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
969 AC_SUBST(COLLECT2_LIBS)
971 # When building Ada code on Alpha, we need exc_resume which is usually in
972 # -lexc. So test for it.
975 AC_SEARCH_LIBS(exc_resume, exc)
978 AC_SUBST(GNAT_LIBEXC)
980 # Some systems put ldexp and frexp in libm instead of libc; assume
981 # they're both in the same place. jcf-dump needs them.
984 AC_SEARCH_LIBS(ldexp, m)
989 # Use <inttypes.h> only if it exists,
990 # doesn't clash with <sys/types.h>, and declares intmax_t.
991 AC_MSG_CHECKING(for inttypes.h)
992 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
993 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
994 [[#include <sys/types.h>
995 #include <inttypes.h>]],
996 [[intmax_t i = -1;]])],
997 [gcc_cv_header_inttypes_h=yes],
998 [gcc_cv_header_inttypes_h=no])])
999 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
1000 if test $gcc_cv_header_inttypes_h = yes; then
1001 AC_DEFINE(HAVE_INTTYPES_H, 1,
1002 [Define if you have a working <inttypes.h> header file.])
1005 dnl Disabled until we have a complete test for buggy enum bitfields.
1006 dnl gcc_AC_C_ENUM_BF_UNSIGNED
1008 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
1009 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
1010 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
1011 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
1012 putchar_unlocked putc_unlocked)
1013 AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
1014 sysconf strsignal getrusage nl_langinfo scandir alphasort \
1015 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
1018 if test x$ac_cv_func_mbstowcs = xyes; then
1019 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
1020 [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
1026 [gcc_cv_func_mbstowcs_works=yes],
1027 [gcc_cv_func_mbstowcs_works=no],
1028 [gcc_cv_func_mbstowcs_works=yes])])
1029 if test x$gcc_cv_func_mbstowcs_works = xyes; then
1030 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1031 [Define this macro if mbstowcs does not crash when its
1032 first argument is NULL.])
1036 AC_CHECK_TYPE(ssize_t, int)
1038 # Try to determine the array type of the second argument of getgroups
1039 # for the target system (int or gid_t).
1041 if test "${target}" = "${build}"; then
1042 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
1045 # This condition may need some tweaking. It should include all
1046 # targets where the array type of the second argument of getgroups
1047 # is int and the type of gid_t is not equivalent to int.
1048 *-*-sunos* | *-*-ultrix*)
1049 TARGET_GETGROUPS_T=int
1052 TARGET_GETGROUPS_T=gid_t
1056 AC_SUBST(TARGET_GETGROUPS_T)
1058 gcc_AC_FUNC_MMAP_BLACKLIST
1062 # Under VMS, vfork works very differently than on Unix. The standard test
1063 # won't work, and it isn't easily adaptable. It makes more sense to
1065 ac_cv_func_vfork_works=yes
1071 # Until we have in-tree GNU iconv:
1073 AC_SUBST(LIBICONV_DEP)
1079 # We will need to find libiberty.h and ansidecl.h
1080 saved_CFLAGS="$CFLAGS"
1081 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1082 gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
1083 strsignal strstr strverscmp \
1084 errno snprintf vsnprintf vasprintf malloc realloc calloc \
1085 free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1086 #include "ansidecl.h"
1087 #include "system.h"])
1089 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1090 #include "ansidecl.h"
1092 #ifdef HAVE_SYS_RESOURCE_H
1093 #include <sys/resource.h>
1097 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1098 #include "ansidecl.h"
1100 #ifdef HAVE_SYS_RESOURCE_H
1101 #include <sys/resource.h>
1103 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
1104 [Define to \`long' if <sys/resource.h> doesn't define.])])
1106 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1107 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1108 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1109 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1110 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1111 #include "ansidecl.h"
1120 gcc_AC_CHECK_DECLS(times, , ,[
1121 #include "ansidecl.h"
1123 #ifdef HAVE_SYS_TIMES_H
1124 #include <sys/times.h>
1128 # More time-related stuff.
1129 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1130 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1131 #include "ansidecl.h"
1133 #ifdef HAVE_SYS_TIMES_H
1134 #include <sys/times.h>
1136 ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
1137 if test $ac_cv_struct_tms = yes; then
1138 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1139 [Define if <sys/times.h> defines struct tms.])
1142 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1143 # revisit after autoconf 2.50.
1144 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1145 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1146 #include "ansidecl.h"
1148 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
1149 if test $gcc_cv_type_clock_t = yes; then
1150 AC_DEFINE(HAVE_CLOCK_T, 1,
1151 [Define if <time.h> defines clock_t.])
1154 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1155 CFLAGS="$saved_CFLAGS"
1157 gcc_AC_INITFINI_ARRAY
1159 # mkdir takes a single argument on some systems.
1160 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1168 # With Setjmp/Longjmp based exception handling.
1169 AC_ARG_ENABLE(sjlj-exceptions,
1170 [ --enable-sjlj-exceptions
1171 arrange to use setjmp/longjmp exception handling],
1172 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1173 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1174 [Define 0/1 to force the choice for exception handling model.])])
1176 # For platforms with the unwind ABI which includes an unwind library,
1177 # libunwind, we can choose to use the system libunwind.
1178 AC_ARG_WITH(system-libunwind,
1179 [ --with-system-libunwind use installed libunwind])
1181 # --------------------------------------------------------
1182 # Build, host, and target specific configuration fragments
1183 # --------------------------------------------------------
1185 # Collect build-machine-specific information.
1186 . ${srcdir}/config.build
1188 # Collect host-machine-specific information.
1189 . ${srcdir}/config.host
1193 # Collect target-machine-specific information.
1194 . ${srcdir}/config.gcc
1196 extra_objs="${host_extra_objs} ${extra_objs}"
1197 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1199 # Default the target-machine variables that were not explicitly set.
1200 if test x"$tm_file" = x
1201 then tm_file=$cpu_type/$cpu_type.h; fi
1203 if test x"$extra_headers" = x
1204 then extra_headers=; fi
1206 if test x$md_file = x
1207 then md_file=$cpu_type/$cpu_type.md; fi
1209 if test x$out_file = x
1210 then out_file=$cpu_type/$cpu_type.c; fi
1212 if test x"$tmake_file" = x
1213 then tmake_file=$cpu_type/t-$cpu_type
1216 if test x"$dwarf2" = xyes
1217 then tm_file="$tm_file tm-dwarf2.h"
1220 # Say what files are being used for the output code and MD file.
1221 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1222 echo "Using \`$srcdir/config/$md_file' as machine description file."
1224 # If any of the xm_file variables contain nonexistent files, warn
1225 # about them and drop them.
1228 for x in $build_xm_file; do
1229 if test -f $srcdir/config/$x
1231 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1237 for x in $host_xm_file; do
1238 if test -f $srcdir/config/$x
1240 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1246 for x in $xm_file; do
1247 if test -f $srcdir/config/$x
1249 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1255 for f in $tm_file; do
1258 if test $count = ax; then
1259 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1261 echo "Using the following target machine macro files:"
1262 for f in $tm_file; do
1263 echo " $srcdir/config/$f"
1267 if test x$need_64bit_hwint = xyes; then
1268 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1269 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1272 if test x$use_long_long_for_widest_fast_int = xyes; then
1273 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1274 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1275 efficiently supported by the host hardware.])
1279 for f in $host_xm_file; do
1282 if test $count = a; then
1284 elif test $count = ax; then
1285 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1287 echo "Using the following host machine macro files:"
1288 for f in $host_xm_file; do
1289 echo " $srcdir/config/$f"
1292 echo "Using ${out_host_hook_obj} for host machine hooks."
1294 if test "$host_xm_file" != "$build_xm_file"; then
1296 for f in $build_xm_file; do
1299 if test $count = a; then
1301 elif test $count = ax; then
1302 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1304 echo "Using the following build machine macro files:"
1305 for f in $build_xm_file; do
1306 echo " $srcdir/config/$f"
1315 # Check if a valid thread package
1316 case ${enable_threads} in
1319 target_thread_file='single'
1323 target_thread_file='single'
1325 aix | dce | gnat | irix | posix | posix95 | rtems | \
1326 single | solaris | vxworks | win32 )
1327 target_thread_file=${enable_threads}
1330 echo "${enable_threads} is an unknown thread package" 1>&2
1335 if test x${thread_file} = x; then
1336 # No thread file set by target-specific clauses in config.gcc,
1337 # so use file chosen by default logic above
1338 thread_file=${target_thread_file}
1341 # Make gthr-default.h if we have a thread file.
1343 if test $thread_file != single; then
1344 rm -f gthr-default.h
1345 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1346 gthread_flags=-DHAVE_GTHR_DEFAULT
1348 AC_SUBST(gthread_flags)
1355 if test x$enable___cxa_atexit = xyes || \
1356 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1357 if test x$host = x$target; then
1358 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1359 [echo "__cxa_atexit can't be enabled on this target"])
1361 # We can't check for __cxa_atexit when building a cross, so assume
1365 if test x$use_cxa_atexit = xyes; then
1366 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1367 [Define if you want to use __cxa_atexit, rather than atexit, to
1368 register C++ destructors for local statics and global objects.
1369 This is essential for fully standards-compliant handling of
1370 destructors, but requires __cxa_atexit in libc.])
1374 # Look for a file containing extra machine modes.
1375 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1376 extra_modes_file='$(srcdir)'/config/${extra_modes}
1377 AC_SUBST(extra_modes_file)
1378 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1379 [Define to the name of a file containing a list of extra machine modes
1380 for this architecture.])
1383 # Convert extra_options into a form suitable for Makefile use.
1385 for f in $extra_options; do
1386 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1388 AC_SUBST(extra_opt_files)
1390 # auto-host.h is the file containing items generated by autoconf and is
1391 # the first file included by config.h.
1392 # If host=build, it is correct to have bconfig include auto-host.h
1393 # as well. If host!=build, we are in error and need to do more
1394 # work to find out the build config parameters.
1395 if test x$host = x$build
1397 build_auto=auto-host.h
1399 # We create a subdir, then run autoconf in the subdir.
1400 # To prevent recursion we set host and build for the new
1401 # invocation of configure to the build for this invocation
1408 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1409 *) realsrcdir=../${srcdir};;
1411 saved_CFLAGS="${CFLAGS}"
1412 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1413 ${realsrcdir}/configure \
1414 --enable-languages=${enable_languages-all} \
1415 --target=$target_alias --host=$build_alias --build=$build_alias
1416 CFLAGS="${saved_CFLAGS}"
1418 # We just finished tests for the build machine, so rename
1419 # the file auto-build.h in the gcc directory.
1420 mv auto-host.h ../auto-build.h
1423 build_auto=auto-build.h
1425 AC_SUBST(build_subdir)
1427 tm_file="${tm_file} defaults.h"
1428 tm_p_file="${tm_p_file} tm-preds.h"
1429 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1430 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1431 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1432 # put this back in temporarily.
1433 xm_file="auto-host.h ansidecl.h ${xm_file}"
1440 # Compile in configure arguments.
1441 if test -f configargs.h ; then
1442 # Being re-configured.
1443 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1444 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1446 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1449 # Double all backslashes and backslash all quotes to turn
1450 # gcc_config_arguments into a C string.
1451 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1452 $gcc_config_arguments
1454 gcc_config_arguments_str=`cat conftest.out`
1457 cat > configargs.h <<EOF
1458 /* Generated automatically. */
1459 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1460 static const char thread_model[] = "$thread_file";
1462 static const struct {
1463 const char *name, *value;
1464 } configure_default_options[] = $configure_default_options;
1468 # Internationalization
1469 ZW_GNU_GETTEXT_SISTER_DIR
1471 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1472 # -liconv on the link line twice.
1473 case "$LIBINTL" in *$LIBICONV*)
1477 AC_ARG_ENABLE(secureplt,
1478 [ --enable-secureplt enable -msecure-plt by default for PowerPC],
1481 # Windows32 Registry support for specifying GCC installation paths.
1482 AC_ARG_ENABLE(win32-registry,
1483 [ --disable-win32-registry
1484 disable lookup of installation paths in the
1485 Registry on Windows hosts
1486 --enable-win32-registry enable registry lookup (default)
1487 --enable-win32-registry=KEY
1488 use KEY instead of GCC version as the last portion
1489 of the registry key],,)
1492 win32 | pe | cygwin* | mingw32* | uwin*)
1493 if test "x$enable_win32_registry" != xno; then
1494 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1497 if test "x$enable_win32_registry" != xno; then
1498 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1499 [Define to 1 if installation paths should be looked up in the Windows
1500 Registry. Ignored on non-Windows hosts.])
1502 if test "x$enable_win32_registry" != xyes \
1503 && test "x$enable_win32_registry" != x; then
1504 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1505 [Define to be the last component of the Windows registry key under which
1506 to look for installation paths. The full key used will be
1507 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1508 The default is the GCC version number.])
1514 # Get an absolute path to the GCC top-level source directory
1515 holddir=`${PWDCMD-pwd}`
1517 topdir=`${PWDCMD-pwd}`
1520 # Conditionalize the makefile for this host machine.
1522 for f in ${host_xmake_file}
1524 if test -f ${srcdir}/config/$f
1526 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1530 # Conditionalize the makefile for this target machine.
1532 for f in ${tmake_file}
1534 if test -f ${srcdir}/config/$f
1536 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1539 tmake_file="${tmake_file_}"
1541 # If the host doesn't support symlinks, modify CC in
1542 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1543 # Otherwise, we can use "CC=$(CC)".
1547 cc_set_by_configure="\$(CC)"
1548 quoted_cc_set_by_configure="\$(CC)"
1549 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1550 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1553 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1554 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1555 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1556 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1560 # This is a terrible hack which will go away some day.
1561 host_cc_for_libada=${CC}
1562 AC_SUBST(host_cc_for_libada)
1564 out_object_file=`basename $out_file .c`.o
1566 tm_file_list="options.h"
1567 tm_include_list="options.h"
1568 for f in $tm_file; do
1571 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1572 tm_include_list="${tm_include_list} $f"
1575 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1576 tm_include_list="${tm_include_list} config/$f"
1583 for f in $tm_p_file; do
1586 tm_p_file_list="${tm_p_file_list} $f"
1587 tm_p_include_list="${tm_p_include_list} $f"
1590 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1591 tm_p_include_list="${tm_p_include_list} config/$f"
1597 for f in $xm_file; do
1600 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1601 xm_include_list="${xm_include_list} $f"
1604 xm_file_list="${xm_file_list} $f"
1605 xm_include_list="${xm_include_list} $f"
1608 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1609 xm_include_list="${xm_include_list} config/$f"
1615 host_xm_include_list=
1616 for f in $host_xm_file; do
1619 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1620 host_xm_include_list="${host_xm_include_list} $f"
1623 host_xm_file_list="${host_xm_file_list} $f"
1624 host_xm_include_list="${host_xm_include_list} $f"
1627 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1628 host_xm_include_list="${host_xm_include_list} config/$f"
1634 for f in $build_xm_file; do
1637 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1638 build_xm_include_list="${build_xm_include_list} $f"
1640 auto-build.h | auto-host.h )
1641 build_xm_file_list="${build_xm_file_list} $f"
1642 build_xm_include_list="${build_xm_include_list} $f"
1645 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1646 build_xm_include_list="${build_xm_include_list} config/$f"
1651 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1652 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1653 CROSS= AC_SUBST(CROSS)
1654 ALL=all.internal AC_SUBST(ALL)
1655 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1657 if test "x$with_build_sysroot" != x; then
1658 build_system_header_dir=$with_build_sysroot'$(NATIVE_SYSTEM_HEADER_DIR)'
1660 # This value is used, even on a native system, because
1661 # CROSS_SYSTEM_HEADER_DIR is just
1662 # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
1663 build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
1666 if test x$host != x$target
1668 CROSS="-DCROSS_COMPILE"
1670 SYSTEM_HEADER_DIR=$build_system_header_dir
1671 case "$host","$target" in
1672 # Darwin crosses can use the host system's libraries and headers,
1673 # because of the fat library support. Of course, it must be the
1674 # same version of Darwin on both sides. Allow the user to
1675 # just say --target=foo-darwin without a version number to mean
1676 # "the version on this system".
1677 *-*-darwin*,*-*-darwin*)
1678 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1679 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1680 if test $hostos = $targetos -o $targetos = darwin ; then
1682 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1687 i?86-*-*,x86_64-*-* \
1688 | powerpc*-*-*,powerpc64*-*-*)
1689 CROSS="$CROSS -DNATIVE_CROSS" ;;
1691 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1692 SYSTEM_HEADER_DIR=$build_system_header_dir
1695 # If this is a cross-compiler that does not
1696 # have its own set of headers then define
1699 # If this is using newlib, without having the headers available now,
1700 # then define inhibit_libc in LIBGCC2_CFLAGS.
1701 # This prevents libgcc2 from containing any code which requires libc
1704 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1705 test x$with_newlib = xyes ; } &&
1706 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1709 AC_SUBST(inhibit_libc)
1711 # When building gcc with a cross-compiler, we need to adjust things so
1712 # that the generator programs are still built with the native compiler.
1713 # Also, we cannot run fixincludes or fix-header.
1715 # These are the normal (build=host) settings:
1716 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1717 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1718 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1720 # Possibly disable fixproto, on a per-target basis.
1721 case ${use_fixproto} in
1726 STMP_FIXPROTO=stmp-fixproto
1729 AC_SUBST(STMP_FIXPROTO)
1731 # And these apply if build != host, or we are generating coverage data
1732 if test x$build != x$host || test "x$coverage_flags" != x
1734 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1736 if test "x$TARGET_SYSTEM_ROOT" = x; then
1737 if test "x$STMP_FIXPROTO" != x; then
1738 STMP_FIXPROTO=stmp-install-fixproto
1743 # Expand extra_headers to include complete path.
1744 # This substitutes for lots of t-* files.
1746 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1747 for file in ${extra_headers} ; do
1748 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1751 # Define collect2 in Makefile.
1752 case $host_can_use_collect2 in
1754 *) collect2='collect2$(exeext)' ;;
1756 AC_SUBST([collect2])
1758 # Add a definition of USE_COLLECT2 if system wants one.
1759 case $use_collect2 in
1760 no) use_collect2= ;;
1763 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1764 xm_defines="${xm_defines} USE_COLLECT2"
1765 case $host_can_use_collect2 in
1767 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1773 # ---------------------------
1774 # Assembler & linker features
1775 # ---------------------------
1777 # Identify the assembler which will work hand-in-glove with the newly
1778 # built GCC, so that we can examine its features. This is the assembler
1779 # which will be driven by the driver program.
1781 # If build != host, and we aren't building gas in-tree, we identify a
1782 # build->target assembler and hope that it will have the same features
1783 # as the host->target assembler we'll be using.
1786 gcc_cv_gas_major_version=
1787 gcc_cv_gas_minor_version=
1788 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1789 if test -x "$DEFAULT_ASSEMBLER"; then
1790 gcc_cv_as="$DEFAULT_ASSEMBLER"
1791 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1792 && test -f ../gas/Makefile \
1793 && test x$build = x$host; then
1794 # Single tree build which includes gas. We want to prefer it
1795 # over whatever linker top-level may have detected, since
1796 # we'll use what we're building after installation anyway.
1798 _gcc_COMPUTE_GAS_VERSION
1799 gcc_cv_as=../gas/as-new$build_exeext
1800 in_tree_gas_is_elf=no
1801 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1802 || (grep 'obj_format = multi' ../gas/Makefile \
1803 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1805 in_tree_gas_is_elf=yes
1807 m4_pattern_allow([AS_FOR_TARGET])dnl
1808 elif test -x as$build_exeext; then
1809 # Build using assembler in the current directory.
1810 gcc_cv_as=./as$build_exeext
1813 gcc_AC_CHECK_TOOL(gcc_cv_as, as, ORIGINAL_AS_FOR_TARGET, AS_FOR_TARGET, AS)
1814 AC_MSG_CHECKING(what assembler to use)
1815 case $in_tree_gas in
1817 AC_MSG_RESULT("newly built gas")
1820 AC_MSG_RESULT($gcc_cv_as)
1824 # Identify the linker which will work hand-in-glove with the newly
1825 # built GCC, so that we can examine its features. This is the linker
1826 # which will be driven by the driver program.
1828 # If build != host, and we aren't building gas in-tree, we identify a
1829 # build->target linker and hope that it will have the same features
1830 # as the host->target linker we'll be using.
1833 gcc_cv_gld_major_version=
1834 gcc_cv_gld_minor_version=
1835 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1836 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1837 if test -x "$DEFAULT_LINKER"; then
1838 gcc_cv_ld="$DEFAULT_LINKER"
1839 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1840 && test -f ../ld/Makefile \
1841 && test x$build = x$host; then
1842 # Single tree build which includes ld. We want to prefer it
1843 # over whatever linker top-level may have detected, since
1844 # we'll use what we're building after installation anyway.
1846 in_tree_ld_is_elf=no
1847 if (grep 'EMUL = .*elf' ../ld/Makefile \
1848 || grep 'EMUL = .*linux' ../ld/Makefile \
1849 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1850 in_tree_ld_is_elf=yes
1852 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
1855 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1857 if test x$gcc_cv_gld_version != x; then
1862 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1863 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1865 gcc_cv_ld=../ld/ld-new$build_exeext
1866 elif test -x collect-ld$build_exeext; then
1867 # Build using linker in the current directory.
1868 gcc_cv_ld=./collect-ld$build_exeext
1871 gcc_AC_CHECK_TOOL(gcc_cv_ld, ld, ORIGINAL_LD_FOR_TARGET, LD_FOR_TARGET, LD)
1872 AC_MSG_CHECKING(what linker to use)
1875 AC_MSG_RESULT("newly built ld")
1878 AC_MSG_RESULT($gcc_cv_ld)
1882 # Figure out what nm we will be using.
1883 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1886 if test -f $gcc_cv_binutils_srcdir/configure.in \
1887 && test -f ../binutils/Makefile; then
1888 # Single tree build which includes binutils.
1890 gcc_cv_nm=../binutils/nm-new$build_exeext
1891 elif test -x nm$build_exeext; then
1892 gcc_cv_nm=./nm$build_exeext
1895 gcc_AC_CHECK_TOOL(gcc_cv_nm, nm, ORIGINAL_NM_FOR_TARGET, NM_FOR_TARGET, NM)
1896 AC_MSG_CHECKING(what nm to use)
1898 yes) AC_MSG_RESULT("newly built nm") ;;
1899 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1902 # Figure out what objdump we will be using.
1905 if test -f $gcc_cv_binutils_srcdir/configure.in \
1906 && test -f ../binutils/Makefile; then
1907 # Single tree build which includes binutils.
1909 gcc_cv_objdump=../binutils/objdump$build_exeext
1910 elif test -x objdump$build_exeext; then
1911 gcc_cv_objdump=./objdump$build_exeext
1914 gcc_AC_CHECK_TOOL(gcc_cv_objdump, objdump, ORIGINAL_OBJDUMP_FOR_TARGET,
1915 OBJDUMP_FOR_TARGET, OBJDUMP)
1916 AC_MSG_CHECKING(what objdump to use)
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([.weakref], gcc_cv_as_weakref,
1963 [ .weakref foobar, barfnot],,
1964 [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])])
1966 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
1969 .NSUBSPA $CODE$,COMDAT],,
1970 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
1972 # .hidden needs to be supported in both the assembler and the linker,
1973 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1974 # This is irritatingly difficult to feature test for; we have to check the
1975 # date string after the version number. If we've got an in-tree
1976 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1978 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1979 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1984 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1985 if echo "$ld_ver" | grep GNU > /dev/null; then
1987 ld_vers=`echo $ld_ver | sed -n \
1988 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p' \
1989 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1990 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1991 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1992 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ -].*$,\1,p'`
1993 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1994 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1995 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1996 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2000 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2001 [if test $in_tree_ld = yes ; then
2003 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2004 && test $in_tree_ld_is_elf = yes; then
2005 gcc_cv_ld_hidden=yes
2008 gcc_cv_ld_hidden=yes
2010 if echo "$ld_ver" | grep GNU > /dev/null; then
2011 if test 0"$ld_date" -lt 20020404; then
2012 if test -n "$ld_date"; then
2013 # If there was date string, but was earlier than 2002-04-04, fail
2015 elif test -z "$ld_vers"; then
2016 # If there was no date string nor ld version number, something is wrong
2019 test -z "$ld_vers_patch" && ld_vers_patch=0
2020 if test "$ld_vers_major" -lt 2; then
2022 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2023 gcc_cv_ld_hidden="no"
2024 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2032 hppa64*-*-hpux* | ia64*-*-hpux*)
2033 gcc_cv_ld_hidden=yes
2041 libgcc_visibility=no
2042 AC_SUBST(libgcc_visibility)
2043 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2044 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2045 libgcc_visibility=yes
2046 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2047 [Define if your assembler and linker support .hidden.])
2050 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2051 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2059 [# GAS versions before 2.11 do not support uleb128,
2060 # despite appearing to.
2061 # ??? There exists an elf-specific test that will crash
2062 # the assembler. Perhaps it's better to figure out whether
2063 # arbitrary sections are supported and try the test.
2064 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2065 if echo "$as_ver" | grep GNU > /dev/null; then
2067 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2068 as_major=`echo $as_ver | sed 's/\..*//'`
2069 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2071 if test $as_major -eq 2 && test $as_minor -lt 11
2073 else gcc_cv_as_leb128=yes
2076 [AC_DEFINE(HAVE_AS_LEB128, 1,
2077 [Define if your assembler supports .sleb128 and .uleb128.])])
2079 # GAS versions up to and including 2.11.0 may mis-optimize
2081 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2089 .section .eh_frame,"aw",@progbits
2091 .4byte .LECIE1-.LSCIE1
2105 .4byte .LEFDE1-.LASFDE1
2107 .4byte .LASFDE1-__FRAME_BEGIN__
2115 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2116 cat > conftest.lit <<EOF
2117 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2118 0010 01000000 12000000 18000000 00000000 ................
2119 0020 08000000 04080000 0044 .........D @&t@
2121 cat > conftest.big <<EOF
2122 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2123 0010 00000001 00000012 00000018 00000000 ................
2124 0020 00000008 04000000 0844 .........D @&t@
2126 # If the assembler didn't choke, and we can objdump,
2127 # and we got the correct data, then succeed.
2128 if test x$gcc_cv_objdump != x \
2129 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2130 | tail -3 > conftest.got \
2131 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2132 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2134 gcc_cv_as_eh_frame=yes
2135 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2136 gcc_cv_as_eh_frame=buggy
2138 # Uh oh, what do we do now?
2139 gcc_cv_as_eh_frame=no
2142 if test $gcc_cv_as_eh_frame = buggy; then
2143 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2144 [Define if your assembler mis-optimizes .eh_frame data.])
2147 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2148 [elf,2,12,0], [--fatal-warnings],
2149 [.section .rodata.str, "aMS", @progbits, 1])
2150 if test $gcc_cv_as_shf_merge = no; then
2151 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2152 [elf,2,12,0], [--fatal-warnings],
2153 [.section .rodata.str, "aMS", %progbits, 1])
2155 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2156 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2157 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2159 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2160 [elf,2,16,0], [--fatal-warnings],
2161 [.section .text,"axG",@progbits,.foo,comdat])
2162 if test $gcc_cv_as_comdat_group = yes; then
2163 gcc_cv_as_comdat_group_percent=no
2165 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2166 [elf,2,16,0], [--fatal-warnings],
2167 [.section .text,"axG",%progbits,.foo,comdat])
2169 if test $in_tree_ld != yes && test x"$ld_vers" != x; then
2171 if test 0"$ld_date" -lt 20050308; then
2172 if test -n "$ld_date"; then
2173 # If there was date string, but was earlier than 2005-03-08, fail
2175 elif test "$ld_vers_major" -lt 2; then
2177 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2182 # assume linkers other than GNU ld don't support COMDAT group
2185 if test $comdat_group = no; then
2186 gcc_cv_as_comdat_group=no
2187 gcc_cv_as_comdat_group_percent=no
2189 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
2190 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2191 [Define 0/1 if your assembler and linker support COMDAT groups.])
2193 # Thread-local storage - the check is heavily parametrized.
2202 .section ".tdata","awT",@progbits
2205 ldq $27,__tls_get_addr($29) !literal!1
2206 lda $16,foo($29) !tlsgd!1
2207 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2208 ldq $27,__tls_get_addr($29) !literal!2
2209 lda $16,foo($29) !tlsldm!2
2210 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2211 ldq $1,foo($29) !gotdtprel
2212 ldah $2,foo($29) !dtprelhi
2213 lda $3,foo($2) !dtprello
2214 lda $4,foo($29) !dtprel
2215 ldq $1,foo($29) !gottprel
2216 ldah $2,foo($29) !tprelhi
2217 lda $3,foo($2) !tprello
2218 lda $4,foo($29) !tprel'
2221 tls_as_opt=--fatal-warnings
2225 .section ".tdata","awT",@progbits
2237 .section ".tdata","awT",@progbits
2241 addil LT%foo-$tls_gdidx$,gp
2242 ldo RT%foo-$tls_gdidx$(%r1),%arg0
2245 addil LT%foo-$tls_ldidx$,gp
2247 ldo RT%foo-$tls_ldidx$(%r1),%arg0
2248 addil LR%foo-$tls_dtpoff$,%ret0
2249 ldo RR%foo-$tls_dtpoff$(%r1),%t1
2251 addil LT%foo-$tls_ieoff$,gp
2252 ldw RT%foo-$tls_ieoff$(%r1),%t2
2255 addil LR%foo-$tls_leoff$,%t1
2256 ldo RR%foo-$tls_leoff$(%r1),%t2'
2259 tls_as_opt=--fatal-warnings
2263 .section ".tdata","awT",%progbits
2276 .section ".tdata","awT",@progbits
2280 leal foo@TLSGD(,%ebx,1), %eax
2281 leal foo@TLSLDM(%ebx), %eax
2282 leal foo@DTPOFF(%eax), %edx
2283 movl foo@GOTTPOFF(%ebx), %eax
2284 subl foo@GOTTPOFF(%ebx), %eax
2285 addl foo@GOTNTPOFF(%ebx), %eax
2286 movl foo@INDNTPOFF, %eax
2287 movl $foo@TPOFF, %eax
2288 subl $foo@TPOFF, %eax
2289 leal foo@NTPOFF(%ecx), %eax'
2292 tls_as_opt=--fatal-warnings
2296 .section ".tdata","awT",@progbits
2300 leaq foo@TLSGD(%rip), %rdi
2301 leaq foo@TLSLD(%rip), %rdi
2302 leaq foo@DTPOFF(%rax), %rdx
2303 movq foo@GOTTPOFF(%rip), %rax
2304 movq $foo@TPOFF, %rax'
2307 tls_as_opt=--fatal-warnings
2311 .section ".tdata","awT",@progbits
2314 addl r16 = @ltoff(@dtpmod(foo#)), gp
2315 addl r17 = @ltoff(@dtprel(foo#)), gp
2316 addl r18 = @ltoff(@tprel(foo#)), gp
2317 addl r19 = @dtprel(foo#), gp
2318 adds r21 = @dtprel(foo#), r13
2319 movl r23 = @dtprel(foo#)
2320 addl r20 = @tprel(foo#), gp
2321 adds r22 = @tprel(foo#), r13
2322 movl r24 = @tprel(foo#)'
2325 tls_as_opt=--fatal-warnings
2329 .section .tdata,"awT",@progbits
2333 addiu $4, $28, %tlsgd(x)
2334 addiu $4, $28, %tlsldm(x)
2335 lui $4, %dtprel_hi(x)
2336 addiu $4, $4, %dtprel_lo(x)
2337 lw $4, %gottprel(x)($28)
2338 lui $4, %tprel_hi(x)
2339 addiu $4, $4, %tprel_lo(x)'
2342 tls_as_opt='-32 --fatal-warnings'
2346 .section ".tdata","awT",@progbits
2354 addi 3,31,ld0@got@tlsgd
2356 addi 3,31,x1@got@tlsld
2359 addis 9,3,x2@dtprel@ha
2360 addi 9,9,x2@dtprel@l
2361 lwz 9,x3@got@tprel(31)
2364 addis 9,2,x2@tprel@ha
2365 addi 9,9,x2@tprel@l'
2368 tls_as_opt="-a32 --fatal-warnings"
2372 .section ".tdata","awT",@progbits
2380 addi 3,2,ld0@got@tlsgd
2386 addi 3,2,x1@got@tlsld
2392 addis 9,3,x2@dtprel@ha
2393 addi 9,9,x2@dtprel@l
2396 ld 9,x3@got@dtprel(2)
2402 tls_as_opt="-a64 --fatal-warnings"
2406 .section ".tdata","awT",@progbits
2415 l %r1,foo@GOTNTPOFF(%r12)
2416 l %r1,0(%r1):tls_load:foo
2417 bas %r14,0(%r1,%r13):tls_gdcall:foo
2418 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2421 tls_as_opt="-m31 --fatal-warnings"
2425 .section ".tdata","awT",@progbits
2433 lg %r1,foo@GOTNTPOFF(%r12)
2434 larl %r1,foo@INDNTPOFF
2435 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2436 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2439 tls_as_opt="-m64 -Aesame --fatal-warnings"
2441 sh-*-* | sh[34]-*-* | sh*l*-*-*)
2443 .section ".tdata","awT",@progbits
2453 tls_as_opt=--fatal-warnings
2457 sparc*-sun-solaris2.[56789]*)
2458 # TLS was introduced in the Solaris 9 4/04 release but
2459 # we do not enable it by default on Solaris 9 either.
2460 if test "x$enable_tls" = xyes ; then
2466 sparc*-sun-solaris2.*)
2473 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2475 .section ".tdata",#alloc,#write,#tls
2478 sethi %tgd_hi22(foo), %o0
2479 add %o0, %tgd_lo10(foo), %o1
2480 add %l7, %o1, %o0, %tgd_add(foo)
2481 call __tls_get_addr, %tgd_call(foo)
2482 sethi %tldm_hi22(foo), %l1
2483 add %l1, %tldm_lo10(foo), %l2
2484 add %l7, %l2, %o0, %tldm_add(foo)
2485 call __tls_get_addr, %tldm_call(foo)
2486 sethi %tldo_hix22(foo), %l3
2487 xor %l3, %tldo_lox10(foo), %l4
2488 add %o0, %l4, %l5, %tldo_add(foo)
2489 sethi %tie_hi22(foo), %o3
2490 add %o3, %tie_lo10(foo), %o3
2491 ld [%l7 + %o3], %o2, %tie_ld(foo)
2492 add %g7, %o2, %o4, %tie_add(foo)
2493 sethi %tle_hix22(foo), %l1
2494 xor %l1, %tle_lox10(foo), %o5
2495 ld [%g7 + %o5], %o1'
2500 .section ".tdata","awT",@progbits
2503 sethi %tgd_hi22(foo), %o0
2504 add %o0, %tgd_lo10(foo), %o1
2505 add %l7, %o1, %o0, %tgd_add(foo)
2506 call __tls_get_addr, %tgd_call(foo)
2507 sethi %tldm_hi22(foo), %l1
2508 add %l1, %tldm_lo10(foo), %l2
2509 add %l7, %l2, %o0, %tldm_add(foo)
2510 call __tls_get_addr, %tldm_call(foo)
2511 sethi %tldo_hix22(foo), %l3
2512 xor %l3, %tldo_lox10(foo), %l4
2513 add %o0, %l4, %l5, %tldo_add(foo)
2514 sethi %tie_hi22(foo), %o3
2515 add %o3, %tie_lo10(foo), %o3
2516 ld [%l7 + %o3], %o2, %tie_ld(foo)
2517 add %g7, %o2, %o4, %tie_add(foo)
2518 sethi %tle_hix22(foo), %l1
2519 xor %l1, %tle_lox10(foo), %o5
2520 ld [%g7 + %o5], %o1'
2523 tls_as_opt="-32 --fatal-warnings"
2529 if test "x$enable_tls" = xno ; then
2530 : # TLS explicitly disabled.
2531 elif test "x$enable_tls" = xyes ; then
2532 set_have_as_tls=yes # TLS explicitly enabled.
2533 elif test -z "$tls_first_major"; then
2534 : # If we don't have a check, assume no support.
2536 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2537 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2538 [set_have_as_tls=yes])
2540 if test $set_have_as_tls = yes ; then
2541 AC_DEFINE(HAVE_AS_TLS, 1,
2542 [Define if your assembler supports thread-local storage.])
2545 # Target-specific assembler checks.
2547 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2548 gcc_cv_ld_static_dynamic=no
2549 if test $in_tree_ld = yes ; then
2550 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2551 gcc_cv_ld_static_dynamic=yes
2553 elif test x$gcc_cv_ld != x; then
2554 # Check if linker supports -Bstatic/-Bdynamic option
2555 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2556 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2557 gcc_cv_ld_static_dynamic=yes
2560 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2561 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2562 [Define if your linker supports -Bstatic/-Bdynamic option.])
2564 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2566 if test x"$demangler_in_ld" = xyes; then
2567 AC_MSG_CHECKING(linker --demangle support)
2568 gcc_cv_ld_demangle=no
2569 if test $in_tree_ld = yes; then
2570 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2571 gcc_cv_ld_demangle=yes
2573 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2574 # Check if the GNU linker supports --demangle option
2575 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2576 gcc_cv_ld_demangle=yes
2579 if test x"$gcc_cv_ld_demangle" = xyes; then
2580 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2581 [Define if your linker supports --demangle option.])
2583 AC_MSG_RESULT($gcc_cv_ld_demangle)
2587 # All TARGET_ABI_OSF targets.
2588 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2589 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2590 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2593 extbl $3, $2, $3 !lituse_bytoff!1
2594 ldq $2, a($29) !literal!1
2595 ldq $4, b($29) !literal!2
2596 ldq_u $3, 0($2) !lituse_base!1
2597 ldq $27, f($29) !literal!5
2598 jsr $26, ($27), f !lituse_jsr!5
2599 ldah $29, 0($26) !gpdisp!3
2600 lda $0, c($29) !gprel
2601 ldah $1, d($29) !gprelhigh
2602 lda $1, d($1) !gprellow
2603 lda $29, 0($29) !gpdisp!3],,
2604 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2605 [Define if your assembler supports explicit relocations.])])
2606 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2607 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2610 ldq $27, a($29) !literal!1
2611 jsr $26, ($27), a !lituse_jsrdirect!1],,
2612 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2613 [Define if your assembler supports the lituse_jsrdirect relocation.])])
2617 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2618 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2619 [-no-mul-bug-abort], [.text],,
2620 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2621 [Define if your assembler supports the -no-mul-bug-abort option.])])
2625 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2626 [.register %g2, #scratch],,
2627 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2628 [Define if your assembler supports .register.])])
2630 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2632 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2633 [Define if your assembler supports -relax option.])])
2635 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2636 gcc_cv_as_sparc_ua_pcrel,,
2644 .uaword %r_disp32(foo)],
2645 [if test x$gcc_cv_ld != x \
2646 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2647 gcc_cv_as_sparc_ua_pcrel=yes
2650 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2651 [Define if your assembler and linker support unaligned PC relative relocs.])
2653 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2654 gcc_cv_as_sparc_ua_pcrel_hidden,,
2659 .uaword %r_disp32(foo)
2660 .byte 0x32, 0x33, 0x34
2665 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2666 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2667 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2668 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2669 if $gcc_cv_objdump -R conftest 2> /dev/null \
2670 | grep 'DISP32' > /dev/null 2>&1; then
2673 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2677 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2678 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2679 ]) # unaligned pcrel relocs
2681 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2682 gcc_cv_as_sparc_offsetable_lo10,,
2685 or %g1, %lo(ab) + 12, %g1
2686 or %g1, %lo(ab + 12), %g1],
2687 [if test x$gcc_cv_objdump != x \
2688 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2689 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2690 gcc_cv_as_sparc_offsetable_lo10=yes
2692 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2693 [Define if your assembler supports offsetable %lo().])])
2697 i[34567]86-*-* | x86_64-*-*)
2700 cygwin* | pe | mingw32*)
2701 # Used for DWARF 2 in PE
2702 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2703 gcc_cv_as_ix86_pe_secrel32,
2709 [if test x$gcc_cv_ld != x \
2710 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2711 gcc_cv_as_ix86_pe_secrel32=yes
2714 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2715 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2719 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2720 gcc_cv_as_ix86_filds_fists,
2721 [2,9,0],, [filds mem; fists mem],,
2722 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2723 [Define if your assembler uses the new HImode fild and fist notation.])])
2725 gcc_GAS_CHECK_FEATURE([cmov syntax],
2726 gcc_cv_as_ix86_cmov_sun_syntax,,,
2727 [cmovl.l %edx, %eax],,
2728 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2729 [Define if your assembler supports the Sun syntax for cmov.])])
2731 # This one is used unconditionally by i386.[ch]; it is to be defined
2732 # to 1 if the feature is present, 0 otherwise.
2733 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2734 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2740 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2741 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2742 [Define true if the assembler supports '.long foo@GOTOFF'.])
2746 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2747 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2749 addl r15 = @ltoffx(x#), gp
2751 ld8.mov r16 = [[r15]], x#],,
2752 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2753 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2759 *-*-aix*) conftest_s=' .machine "pwr5"
2763 gcc_GAS_CHECK_FEATURE([.machine directive support],
2764 gcc_cv_as_machine_directive,,,
2765 [ .machine ppc7400])
2766 if test x$gcc_cv_as_machine_directive != xyes; then
2767 echo "*** This target requires an assembler supporting \".machine\"" >&2
2768 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2769 test x$build = x$target && exit 1
2773 *) conftest_s=' .machine power4
2778 gcc_GAS_CHECK_FEATURE([mfcr field support],
2779 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2781 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2782 [Define if your assembler supports mfcr field.])])
2785 *-*-aix*) conftest_s=' .machine "pwr5"
2788 *) conftest_s=' .machine power5
2793 gcc_GAS_CHECK_FEATURE([popcntb support],
2794 gcc_cv_as_powerpc_popcntb, [2,17,0],,
2796 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
2797 [Define if your assembler supports popcntb field.])])
2800 *-*-aix*) conftest_s=' .machine "pwr5x"
2803 *) conftest_s=' .machine power5
2808 gcc_GAS_CHECK_FEATURE([fp round support],
2809 gcc_cv_as_powerpc_fprnd, [2,17,0],,
2811 [AC_DEFINE(HAVE_AS_FPRND, 1,
2812 [Define if your assembler supports fprnd.])])
2815 *-*-aix*) conftest_s=' .csect .text[[PR]]
2817 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
2821 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
2822 *) conftest_s=' .text
2824 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
2827 gcc_GAS_CHECK_FEATURE([rel16 relocs],
2828 gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
2830 [AC_DEFINE(HAVE_AS_REL16, 1,
2831 [Define if your assembler supports R_PPC_REL16 relocs.])])
2835 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2836 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2837 [ lw $4,%gp_rel(foo)($4)],,
2838 [if test x$target_cpu_default = x
2839 then target_cpu_default=MASK_EXPLICIT_RELOCS
2840 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2845 # Mips and HP-UX need the GNU assembler.
2846 # Linux on IA64 might be able to use the Intel assembler.
2849 mips*-*-* | *-*-hpux* )
2850 if test x$gas_flag = xyes \
2851 || test x"$host" != x"$build" \
2852 || test ! -x "$gcc_cv_as" \
2853 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2856 echo "*** This configuration requires the GNU assembler" >&2
2862 # ??? Not all targets support dwarf2 debug_line, even within a version
2863 # of gas. Moreover, we need to emit a valid instruction to trigger any
2864 # info to the output file. So, as supported targets are added to gas 2.11,
2865 # add some instruction here to (also) show we expect this might work.
2866 # ??? Once 2.11 is released, probably need to add first known working
2867 # version to the per-target configury.
2869 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2870 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2871 | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-*)
2874 ia64*-*-* | s390*-*-*)
2881 if test x"$insn" != x; then
2883 .file 1 \"conftest.s\"
2886 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2887 gcc_cv_as_dwarf2_debug_line,
2888 [elf,2,11,0],, [$conftest_s],
2889 [if test x$gcc_cv_objdump != x \
2890 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2891 | grep debug_line > /dev/null 2>&1; then
2892 gcc_cv_as_dwarf2_debug_line=yes
2895 # The .debug_line file table must be in the exact order that
2896 # we specified the files, since these indices are also used
2897 # by DW_AT_decl_file. Approximate this test by testing if
2898 # the assembler bitches if the same index is assigned twice.
2899 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2900 gcc_cv_as_dwarf2_file_buggy,,,
2904 if test $gcc_cv_as_dwarf2_debug_line = yes \
2905 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2906 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2907 [Define if your assembler supports dwarf2 .file/.loc directives,
2908 and preserves file table indices exactly as given.])
2911 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2912 gcc_cv_as_gdwarf2_flag,
2913 [elf,2,11,0], [--gdwarf2], [$insn],,
2914 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2915 [Define if your assembler supports the --gdwarf2 option.])])
2917 gcc_GAS_CHECK_FEATURE([--gstabs option],
2918 gcc_cv_as_gstabs_flag,
2919 [elf,2,11,0], [--gstabs], [$insn],
2920 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2921 # and warns about it, but still exits successfully. So check for
2923 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2925 else gcc_cv_as_gstabs_flag=yes
2927 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2928 [Define if your assembler supports the --gstabs option.])])
2931 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2932 gcc_cv_ld_ro_rw_mix=unknown
2933 if test $in_tree_ld = yes ; then
2934 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2935 && test $in_tree_ld_is_elf = yes; then
2936 gcc_cv_ld_ro_rw_mix=read-write
2938 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2939 echo '.section myfoosect, "a"' > conftest1.s
2940 echo '.section myfoosect, "aw"' > conftest2.s
2941 echo '.byte 1' >> conftest2.s
2942 echo '.section myfoosect, "a"' > conftest3.s
2943 echo '.byte 0' >> conftest3.s
2944 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2945 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2946 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2947 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2948 conftest2.o conftest3.o > /dev/null 2>&1; then
2949 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2950 | sed -e '/myfoosect/!d' -e N`
2951 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2952 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2953 gcc_cv_ld_ro_rw_mix=read-only
2955 gcc_cv_ld_ro_rw_mix=read-write
2960 rm -f conftest.* conftest[123].*
2963 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2964 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2965 [Define if your linker links a mix of read-only
2966 and read-write sections into a read-write section.])
2968 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2970 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2971 gcc_cv_ld_eh_frame_hdr=no
2972 if test $in_tree_ld = yes ; then
2973 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2974 && test $in_tree_ld_is_elf = yes; then
2975 gcc_cv_ld_eh_frame_hdr=yes
2977 elif test x$gcc_cv_ld != x; then
2978 # Check if linker supports --eh-frame-hdr option
2979 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2980 gcc_cv_ld_eh_frame_hdr=yes
2983 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
2984 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2985 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2986 [Define if your linker supports --eh-frame-hdr option.])
2988 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2990 AC_MSG_CHECKING(linker position independent executable support)
2992 if test $in_tree_ld = yes ; then
2993 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2994 && test $in_tree_ld_is_elf = yes; then
2997 elif test x$gcc_cv_ld != x; then
2998 # Check if linker supports -pie option
2999 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
3003 if test x"$gcc_cv_ld_pie" = xyes; then
3004 AC_DEFINE(HAVE_LD_PIE, 1,
3005 [Define if your linker supports -pie option.])
3007 AC_MSG_RESULT($gcc_cv_ld_pie)
3013 AC_CACHE_CHECK(linker --as-needed support,
3014 gcc_cv_ld_as_needed,
3015 [gcc_cv_ld_as_needed=no
3016 if test $in_tree_ld = yes ; then
3017 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
3018 && test $in_tree_ld_is_elf = yes; then
3019 gcc_cv_ld_as_needed=yes
3021 elif test x$gcc_cv_ld != x; then
3022 # Check if linker supports --as-needed and --no-as-needed options
3023 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
3024 gcc_cv_ld_as_needed=yes
3028 if test x"$gcc_cv_ld_as_needed" = xyes; then
3029 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
3030 [Define if your linker supports --as-needed and --no-as-needed options.])
3033 case "$target:$tm_file" in
3034 powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
3035 AC_CACHE_CHECK(linker support for omitting dot symbols,
3036 gcc_cv_ld_no_dot_syms,
3037 [gcc_cv_ld_no_dot_syms=no
3038 if test $in_tree_ld = yes ; then
3039 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
3040 gcc_cv_ld_no_dot_syms=yes
3042 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
3043 cat > conftest1.s <<EOF
3047 cat > conftest2.s <<EOF
3048 .section ".opd","aw"
3053 .quad .LEfoo,.TOC.@tocbase,0
3059 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
3060 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
3061 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
3062 gcc_cv_ld_no_dot_syms=yes
3064 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3067 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3068 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3069 [Define if your PowerPC64 linker only needs function descriptor syms.])
3074 AC_CACHE_CHECK(linker --sysroot support,
3076 [gcc_cv_ld_sysroot=no
3077 if test $in_tree_ld = yes ; then
3078 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
3079 gcc_cv_ld_sysroot=yes
3081 elif test x$gcc_cv_ld != x; then
3082 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3083 gcc_cv_ld_sysroot=yes
3086 if test x"$gcc_cv_ld_sysroot" = xyes; then
3087 AC_DEFINE(HAVE_LD_SYSROOT, 1,
3088 [Define if your linker supports --sysroot.])
3091 if test x$with_sysroot = x && test x$host = x$target \
3092 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3093 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3094 [Define to PREFIX/include if cpp should also search that directory.])
3097 # Test for stack protector support in target C library.
3098 AC_CACHE_CHECK(__stack_chk_fail in target C library,
3099 gcc_cv_libc_provides_ssp,
3102 gcc_cv_libc_provides_ssp=no
3103 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3104 if test "x$with_sysroot" = x; then
3105 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3106 elif test "x$with_sysroot" = xyes; then
3107 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3109 glibc_header_dir="${with_sysroot}/usr/include"
3112 glibc_header_dir=/usr/include
3114 # glibc 2.4 and later provides __stack_chk_fail and
3115 # either __stack_chk_guard, or TLS access to stack guard canary.
3116 if test -f $glibc_header_dir/features.h \
3117 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
3118 $glibc_header_dir/features.h > /dev/null; then
3119 if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
3120 $glibc_header_dir/features.h > /dev/null; then
3121 gcc_cv_libc_provides_ssp=yes
3122 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
3123 $glibc_header_dir/features.h > /dev/null \
3124 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
3125 $glibc_header_dir/features.h > /dev/null; then
3126 gcc_cv_libc_provides_ssp=yes
3130 AC_CHECK_FUNCS(__stack_chk_guard,[gcc_cv_libc_provides_ssp=yes],
3131 [gcc_cv_libc_provides_ssp=no]) ;;
3132 *) gcc_cv_libc_provides_ssp=no ;;
3134 if test x$gcc_cv_libc_provides_ssp = xyes; then
3135 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
3136 [Define if your target C library provides stack protector support])
3139 # Find out what GC implementation we want, or may, use.
3141 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3149 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3152 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3157 echo "Using $GGC for garbage collection."
3159 # Use the system's zlib library.
3161 zlibinc="-I\$(srcdir)/../zlib"
3162 AC_ARG_WITH(system-zlib,
3163 [ --with-system-zlib use installed libz],
3170 dnl Very limited version of automake's enable-maintainer-mode
3172 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3173 dnl maintainer-mode is disabled by default
3174 AC_ARG_ENABLE(maintainer-mode,
3175 [ --enable-maintainer-mode
3176 enable make rules and dependencies not useful
3177 (and sometimes confusing) to the casual installer],
3178 maintainer_mode=$enableval,
3181 AC_MSG_RESULT($maintainer_mode)
3183 if test "$maintainer_mode" = "yes"; then
3194 # Make empty files to contain the specs and options for each language.
3195 # Then add #include lines to for a compiler that has specs and/or options.
3200 for subdir in . $subdirs
3202 if test -f $srcdir/$subdir/lang.opt; then
3203 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3205 if test -f $srcdir/$subdir/lang-specs.h; then
3206 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3208 if test -f $srcdir/$subdir/$subdir-tree.def; then
3209 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3213 # These (without "all_") are set in each config-lang.in.
3214 # `language' must be a single word so is spelled singularly.
3219 all_outputs='Makefile gccbug mklibgcc libada-mk'
3220 # List of language makefile fragments.
3222 # List of language subdirectory makefiles. Deprecated.
3224 # Files for gengtype
3225 all_gtfiles="$target_gtfiles"
3226 # Files for gengtype with language
3227 all_gtfiles_files_langs=
3228 all_gtfiles_files_files=
3230 # Add the language fragments.
3231 # Languages are added via two mechanisms. Some information must be
3232 # recorded in makefile variables, these are defined in config-lang.in.
3233 # We accumulate them and plug them into the main Makefile.
3234 # The other mechanism is a set of hooks for each of the main targets
3235 # like `clean', `install', etc.
3237 language_hooks="Make-hooks"
3247 . ${srcdir}/$s/config-lang.in
3248 if test "x$language" = x
3250 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3253 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3254 if test -f ${srcdir}/$s/Makefile.in
3255 then all_lang_makefiles="$s/Makefile"
3257 all_languages="$all_languages $language"
3258 if test "x$boot_language" = xyes
3260 all_boot_languages="$all_boot_languages $language"
3262 all_compilers="$all_compilers $compilers"
3263 all_stagestuff="$all_stagestuff $stagestuff"
3264 all_outputs="$all_outputs $outputs"
3265 all_gtfiles="$all_gtfiles $gtfiles"
3268 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3269 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3273 # Pick up gtfiles for c
3276 . ${srcdir}/c-config-lang.in
3277 all_gtfiles="$all_gtfiles $gtfiles"
3280 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3281 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3285 for language in $all_languages
3287 check_languages="$check_languages check-$language"
3290 # We link each language in with a set of hooks, reached indirectly via
3295 target_list="all.build all.cross start.encap rest.encap tags \
3296 install-normal install-common install-man \
3297 uninstall info man srcextra srcman srcinfo \
3298 mostlyclean clean distclean maintainer-clean \
3299 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3300 for t in $target_list
3303 for lang in $all_languages
3307 echo "lang.$t: $x" >> Make-hooks
3316 echo "dir ." > .gdbinit
3317 echo "dir ${srcdir}" >> .gdbinit
3318 if test x$gdb_needs_out_file_path = xyes
3320 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3322 if test "x$subdirs" != x; then
3325 echo "dir ${srcdir}/$s" >> .gdbinit
3328 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3330 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3331 # absolute path for gcc_tooldir based on inserting the number of up-directory
3332 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3333 # $(libsubdir)/@(unlibsubdir) based path.
3334 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3335 # make and thus we'd get different behavior depending on where we built the
3337 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3338 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3340 changequote(<<, >>)dnl
3341 # An explanation of the sed strings:
3342 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3343 # -e 's|/$||' match a trailing forward slash and eliminates it
3344 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3345 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3347 # (*) Note this pattern overwrites the first character of the string
3348 # with a forward slash if one is not already present. This is not a
3349 # problem because the exact names of the sub-directories concerned is
3350 # unimportant, just the number of them matters.
3352 # The practical upshot of these patterns is like this:
3354 # prefix exec_prefix result
3355 # ------ ----------- ------
3357 # /foo/ /foo/bar ../
3358 # /foo /foo/bar/ ../
3359 # /foo/ /foo/bar/ ../
3360 # /foo /foo/bar/ugg ../../
3363 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3364 changequote([, ])dnl
3366 AC_SUBST(gcc_tooldir)
3369 # Find a directory in which to install a shared libgcc.
3371 AC_ARG_ENABLE(version-specific-runtime-libs,
3372 [ --enable-version-specific-runtime-libs
3373 specify that runtime libraries should be
3374 installed in a compiler-specific directory])
3376 AC_ARG_WITH(slibdir,
3377 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3378 slibdir="$with_slibdir",
3379 if test "${enable_version_specific_runtime_libs+set}" = set; then
3380 slibdir='$(libsubdir)'
3381 elif test "$host" != "$target"; then
3382 slibdir='$(build_tooldir)/lib'
3388 objdir=`${PWDCMD-pwd}`
3391 # Substitute configuration variables
3394 AC_SUBST(all_boot_languages)
3395 AC_SUBST(all_compilers)
3396 AC_SUBST(all_gtfiles)
3397 AC_SUBST(all_gtfiles_files_langs)
3398 AC_SUBST(all_gtfiles_files_files)
3399 AC_SUBST(all_lang_makefrags)
3400 AC_SUBST(all_lang_makefiles)
3401 AC_SUBST(all_languages)
3402 AC_SUBST(all_stagestuff)
3403 AC_SUBST(build_exeext)
3404 AC_SUBST(build_install_headers_dir)
3405 AC_SUBST(build_xm_file_list)
3406 AC_SUBST(build_xm_include_list)
3407 AC_SUBST(build_xm_defines)
3408 AC_SUBST(check_languages)
3409 AC_SUBST(cc_set_by_configure)
3410 AC_SUBST(quoted_cc_set_by_configure)
3411 AC_SUBST(cpp_install_dir)
3412 AC_SUBST(xmake_file)
3413 AC_SUBST(tmake_file)
3414 AC_SUBST(extra_gcc_objs)
3415 AC_SUBST(extra_headers_list)
3416 AC_SUBST(extra_objs)
3417 AC_SUBST(extra_parts)
3418 AC_SUBST(extra_passes)
3419 AC_SUBST(extra_programs)
3420 AC_SUBST(float_h_file)
3421 AC_SUBST(gcc_config_arguments)
3422 AC_SUBST(gcc_gxx_include_dir)
3423 AC_SUBST(libstdcxx_incdir)
3424 AC_SUBST(host_exeext)
3425 AC_SUBST(host_xm_file_list)
3426 AC_SUBST(host_xm_include_list)
3427 AC_SUBST(host_xm_defines)
3428 AC_SUBST(out_host_hook_obj)
3430 AC_SUBST(lang_opt_files)
3431 AC_SUBST(lang_specs_files)
3432 AC_SUBST(lang_tree_files)
3433 AC_SUBST(local_prefix)
3435 AC_SUBST(objc_boehm_gc)
3437 AC_SUBST(out_object_file)
3438 AC_SUBST(stage_prefix_set_by_configure)
3439 AC_SUBST(quoted_stage_prefix_set_by_configure)
3440 AC_SUBST(thread_file)
3441 AC_SUBST(tm_file_list)
3442 AC_SUBST(tm_include_list)
3443 AC_SUBST(tm_defines)
3444 AC_SUBST(tm_p_file_list)
3445 AC_SUBST(tm_p_include_list)
3446 AC_SUBST(xm_file_list)
3447 AC_SUBST(xm_include_list)
3448 AC_SUBST(xm_defines)
3449 AC_SUBST(c_target_objs)
3450 AC_SUBST(cxx_target_objs)
3451 AC_SUBST(target_cpu_default)
3453 AC_SUBST_FILE(language_hooks)
3456 if test x${build} = x${host} ; then
3457 if test x${host} = x${target} ; then
3458 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3460 echo "Links are now set up to build a cross-compiler" 1>&2
3461 echo " from ${host} to ${target}." 1>&2
3464 if test x${host} = x${target} ; then
3465 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3466 echo " for ${target}." 1>&2
3468 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3469 echo " from ${host} to ${target}." 1>&2
3473 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3474 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3476 # Configure the subdirectories
3477 # AC_CONFIG_SUBDIRS($subdirs)
3479 # Create the Makefile
3480 # and configure language subdirectories
3481 AC_CONFIG_FILES($all_outputs)
3483 AC_CONFIG_COMMANDS([default],
3485 case ${CONFIG_HEADERS} in
3486 *auto-host.h:config.in*)
3489 # Make sure all the subdirs exist.
3490 for d in $subdirs doc build
3492 test -d $d || mkdir $d
3494 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3495 # bootstrapping and the installation procedure can still use
3496 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3497 # FLAGS_TO_PASS has been modified to solve the problem there.
3498 # This is virtually a duplicate of what happens in configure.lang; we do
3499 # an extra check to make sure this only happens if ln -s can be used.
3502 for d in ${subdirs} ; do
3503 STARTDIR=`${PWDCMD-pwd}`
3505 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3508 $LN_S ../$t $t 2>/dev/null
3515 [subdirs='$subdirs'])