2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
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++],
642 # Enable C extension for decimal float if target supports it.
643 AC_ARG_ENABLE(decimal-float,
644 [ --enable-decimal-float enable decimal float extension to C],
646 if test x$enablevar = xyes ; then
648 powerpc*-*-linux* | i?86*-*-linux*)
651 AC_MSG_WARN(decimal float is not supported for this target, ignored)
652 enable_decimal_float=no
660 enable_decimal_float=yes
663 enable_decimal_float=no
668 AC_SUBST(enable_decimal_float)
670 dfp=`if test $enable_decimal_float = yes; then echo 1; else echo 0; fi`
671 AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp,
672 [Define to 1 to enable decimal float extension to C.])
675 # Pass with no value to take the default
676 # Pass with a value to specify a thread package
677 AC_ARG_ENABLE(threads,
678 [ --enable-threads enable thread usage for target GCC
679 --enable-threads=LIB use LIB thread package for target GCC],,
683 [ --enable-tls enable or disable generation of tls code
684 overriding the assembler check for tls support],
688 *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls.
689 Valid choices are 'yes' and 'no'.]) ;;
693 AC_ARG_ENABLE(objc-gc,
694 [ --enable-objc-gc enable the use of Boehm's garbage collector with
695 the GNU Objective-C runtime],
696 if test x$enable_objc_gc = xno; then
704 [ --with-dwarf2 force the default debug format to be DWARF 2],
705 dwarf2="$with_dwarf2",
708 AC_ARG_ENABLE(shared,
709 [ --disable-shared don't provide a shared libgcc],
711 case $enable_shared in
715 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
716 for pkg in $enableval; do
717 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
724 ], [enable_shared=yes])
725 AC_SUBST(enable_shared)
727 AC_ARG_WITH(build-sysroot,
728 [ --with-build-sysroot=sysroot
729 use sysroot as the system root during the build])
732 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
734 case ${with_sysroot} in
735 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
736 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
739 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
740 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
742 if test "x$exec_prefix" = xNONE; then
743 if test "x$prefix" = xNONE; then
744 test_prefix=/usr/local
749 test_prefix=$exec_prefix
751 case ${TARGET_SYSTEM_ROOT} in
752 "${test_prefix}"|"${test_prefix}/"*|\
753 '${exec_prefix}'|'${exec_prefix}/'*)
754 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
755 TARGET_SYSTEM_ROOT_DEFINE="$t"
760 TARGET_SYSTEM_ROOT_DEFINE=
761 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
763 AC_SUBST(TARGET_SYSTEM_ROOT)
764 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
765 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
767 # Build with intermodule optimisations
768 AC_ARG_ENABLE(intermodule,
769 [ --enable-intermodule build the compiler in one step],
770 [case ${enable_intermodule} in
771 yes) onestep="-onestep";;
777 # Sanity check enable_languages in case someone does not run the toplevel
778 # configure # script.
779 AC_ARG_ENABLE(languages,
780 [ --enable-languages=LIST specify which front-ends to build],
781 [case ,${enable_languages}, in
783 # go safe -- we cannot be much sure without the toplevel
785 # analysis of which target libs are present and usable
789 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
794 enable_languages=c,${enable_languages}
797 [enable_languages=c])
800 for lang in ${srcdir}/*/config-lang.in
803 # The odd quoting in the next line works around
804 # an apparent bug in bash 1.12 on linux.
806 ${srcdir}/[*]/config-lang.in) ;;
808 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
809 if test "x$lang_alias" = x
811 echo "$lang doesn't set \$language." 1>&2
814 case ",$enable_languages," in
816 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
824 # -------------------------
825 # Checks for other programs
826 # -------------------------
830 # Find some useful tools
832 # We need awk to create options.c and options.h.
833 # Bail out if it's missing.
835 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
843 # By default, the Darwin ranlib will not treat common symbols as
844 # definitions when building the archive table of contents. Other
845 # ranlibs do that; pass an option to the Darwin ranlib that makes
846 # it behave similarly.
852 AC_SUBST(ranlib_flags)
856 # See if cmp has --ignore-initial.
857 gcc_AC_PROG_CMP_IGNORE_INITIAL
859 # See if we have the mktemp command.
860 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
862 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
864 # See if makeinfo has been installed and is modern enough
865 # that we can use it.
866 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
867 [GNU texinfo.* \([0-9][0-9.]*\)],
869 if test $gcc_cv_prog_makeinfo_modern = no; then
870 MAKEINFO="$MISSING makeinfo"
872 *** Makeinfo is missing or too old.
873 *** Info documentation will not be built.])
880 # Is pod2man recent enough to regenerate manpages?
881 AC_MSG_CHECKING([for recent Pod::Man])
882 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
884 GENERATED_MANPAGES=generated-manpages
889 AC_SUBST(GENERATED_MANPAGES)
892 dnl Don't use AC_PROG_LEX; we insist on flex.
893 dnl LEXLIB is not useful in gcc.
894 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
897 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
899 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
900 # check for build == host before using them.
903 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
904 && test -d ../binutils ; then
905 NM='$(objdir)/../binutils/nm-new'
907 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
911 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
912 && test -d ../binutils ; then
913 AR='$(objdir)/../binutils/ar'
915 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
919 # --------------------
920 # Checks for C headers
921 # --------------------
923 AC_MSG_CHECKING(for GNU C library)
924 AC_CACHE_VAL(gcc_cv_glibc,
925 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
926 [[#include <features.h>]], [[
927 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
928 #error Not a GNU C library system
932 AC_MSG_RESULT($gcc_cv_glibc)
933 if test $gcc_cv_glibc = yes; then
934 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
937 # Need to reject headers which give warnings, so that the -Werror bootstrap
938 # works later. *sigh* This needs to come before all header checks.
945 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
946 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
947 sys/resource.h sys/param.h sys/times.h sys/stat.h \
948 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
950 # Check for thread headers.
951 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
952 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
954 # These tests can't be done till we know if we have limits.h.
962 # Stage specific cflags for build.
968 stage1_cflags="-Wa,-J"
974 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
975 # sources; use -no-cpp-precomp to get to GNU cpp.
976 # Apple's GCC has bugs in designated initializer handling, so disable
978 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
981 AC_SUBST(stage1_cflags)
983 # These libraries may be used by collect2.
984 # We may need a special search path to get them linked.
985 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
987 for libs in '' -lld -lmld \
988 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
989 '-L/usr/lib/cmplrs/cc3.11 -lmld'
992 AC_TRY_LINK_FUNC(ldopen,
993 [gcc_cv_collect2_libs="$libs"; break])
996 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
997 case $gcc_cv_collect2_libs in
999 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
1001 AC_SUBST(COLLECT2_LIBS)
1003 # When building Ada code on Alpha, we need exc_resume which is usually in
1004 # -lexc. So test for it.
1007 AC_SEARCH_LIBS(exc_resume, exc)
1010 AC_SUBST(GNAT_LIBEXC)
1012 # Some systems put ldexp and frexp in libm instead of libc; assume
1013 # they're both in the same place. jcf-dump needs them.
1016 AC_SEARCH_LIBS(ldexp, m)
1021 # Use <inttypes.h> only if it exists,
1022 # doesn't clash with <sys/types.h>, and declares intmax_t.
1023 AC_MSG_CHECKING(for inttypes.h)
1024 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
1025 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1026 [[#include <sys/types.h>
1027 #include <inttypes.h>]],
1028 [[intmax_t i = -1;]])],
1029 [gcc_cv_header_inttypes_h=yes],
1030 [gcc_cv_header_inttypes_h=no])])
1031 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
1032 if test $gcc_cv_header_inttypes_h = yes; then
1033 AC_DEFINE(HAVE_INTTYPES_H, 1,
1034 [Define if you have a working <inttypes.h> header file.])
1037 dnl Disabled until we have a complete test for buggy enum bitfields.
1038 dnl gcc_AC_C_ENUM_BF_UNSIGNED
1040 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
1041 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
1042 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
1043 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
1044 putchar_unlocked putc_unlocked)
1045 AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
1046 sysconf strsignal getrusage nl_langinfo scandir alphasort \
1047 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
1050 if test x$ac_cv_func_mbstowcs = xyes; then
1051 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
1052 [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
1058 [gcc_cv_func_mbstowcs_works=yes],
1059 [gcc_cv_func_mbstowcs_works=no],
1060 [gcc_cv_func_mbstowcs_works=yes])])
1061 if test x$gcc_cv_func_mbstowcs_works = xyes; then
1062 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1063 [Define this macro if mbstowcs does not crash when its
1064 first argument is NULL.])
1068 AC_CHECK_TYPE(ssize_t, int)
1070 # Try to determine the array type of the second argument of getgroups
1071 # for the target system (int or gid_t).
1073 if test "${target}" = "${build}"; then
1074 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
1077 # This condition may need some tweaking. It should include all
1078 # targets where the array type of the second argument of getgroups
1079 # is int and the type of gid_t is not equivalent to int.
1080 *-*-sunos* | *-*-ultrix*)
1081 TARGET_GETGROUPS_T=int
1084 TARGET_GETGROUPS_T=gid_t
1088 AC_SUBST(TARGET_GETGROUPS_T)
1090 gcc_AC_FUNC_MMAP_BLACKLIST
1094 # Under VMS, vfork works very differently than on Unix. The standard test
1095 # won't work, and it isn't easily adaptable. It makes more sense to
1097 ac_cv_func_vfork_works=yes
1103 # Until we have in-tree GNU iconv:
1105 AC_SUBST(LIBICONV_DEP)
1111 # We will need to find libiberty.h and ansidecl.h
1112 saved_CFLAGS="$CFLAGS"
1113 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1114 gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
1115 strsignal strstr strverscmp \
1116 errno snprintf vsnprintf vasprintf malloc realloc calloc \
1117 free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1118 #include "ansidecl.h"
1119 #include "system.h"])
1121 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1122 #include "ansidecl.h"
1124 #ifdef HAVE_SYS_RESOURCE_H
1125 #include <sys/resource.h>
1129 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1130 #include "ansidecl.h"
1132 #ifdef HAVE_SYS_RESOURCE_H
1133 #include <sys/resource.h>
1135 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
1136 [Define to \`long' if <sys/resource.h> doesn't define.])])
1138 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1139 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1140 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1141 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1142 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1143 #include "ansidecl.h"
1152 gcc_AC_CHECK_DECLS(times, , ,[
1153 #include "ansidecl.h"
1155 #ifdef HAVE_SYS_TIMES_H
1156 #include <sys/times.h>
1160 # More time-related stuff.
1161 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1162 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1163 #include "ansidecl.h"
1165 #ifdef HAVE_SYS_TIMES_H
1166 #include <sys/times.h>
1168 ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
1169 if test $ac_cv_struct_tms = yes; then
1170 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1171 [Define if <sys/times.h> defines struct tms.])
1174 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1175 # revisit after autoconf 2.50.
1176 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1177 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1178 #include "ansidecl.h"
1180 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
1181 if test $gcc_cv_type_clock_t = yes; then
1182 AC_DEFINE(HAVE_CLOCK_T, 1,
1183 [Define if <time.h> defines clock_t.])
1186 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1187 CFLAGS="$saved_CFLAGS"
1189 gcc_AC_INITFINI_ARRAY
1191 # mkdir takes a single argument on some systems.
1192 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1200 # With Setjmp/Longjmp based exception handling.
1201 AC_ARG_ENABLE(sjlj-exceptions,
1202 [ --enable-sjlj-exceptions
1203 arrange to use setjmp/longjmp exception handling],
1204 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1205 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1206 [Define 0/1 to force the choice for exception handling model.])])
1208 # For platforms with the unwind ABI which includes an unwind library,
1209 # libunwind, we can choose to use the system libunwind.
1210 AC_ARG_WITH(system-libunwind,
1211 [ --with-system-libunwind use installed libunwind])
1213 # --------------------------------------------------------
1214 # Build, host, and target specific configuration fragments
1215 # --------------------------------------------------------
1217 # Collect build-machine-specific information.
1218 . ${srcdir}/config.build
1220 # Collect host-machine-specific information.
1221 . ${srcdir}/config.host
1225 # Collect target-machine-specific information.
1226 . ${srcdir}/config.gcc
1228 extra_objs="${host_extra_objs} ${extra_objs}"
1229 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1231 # Default the target-machine variables that were not explicitly set.
1232 if test x"$tm_file" = x
1233 then tm_file=$cpu_type/$cpu_type.h; fi
1235 if test x"$extra_headers" = x
1236 then extra_headers=; fi
1238 if test x$md_file = x
1239 then md_file=$cpu_type/$cpu_type.md; fi
1241 if test x$out_file = x
1242 then out_file=$cpu_type/$cpu_type.c; fi
1244 if test x"$tmake_file" = x
1245 then tmake_file=$cpu_type/t-$cpu_type
1248 if test x"$dwarf2" = xyes
1249 then tm_file="$tm_file tm-dwarf2.h"
1252 # Say what files are being used for the output code and MD file.
1253 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1254 echo "Using \`$srcdir/config/$md_file' as machine description file."
1256 # If any of the xm_file variables contain nonexistent files, warn
1257 # about them and drop them.
1260 for x in $build_xm_file; do
1261 if test -f $srcdir/config/$x
1263 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1269 for x in $host_xm_file; do
1270 if test -f $srcdir/config/$x
1272 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1278 for x in $xm_file; do
1279 if test -f $srcdir/config/$x
1281 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1287 for f in $tm_file; do
1290 if test $count = ax; then
1291 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1293 echo "Using the following target machine macro files:"
1294 for f in $tm_file; do
1295 echo " $srcdir/config/$f"
1299 if test x$need_64bit_hwint = xyes; then
1300 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1301 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1304 if test x$use_long_long_for_widest_fast_int = xyes; then
1305 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1306 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1307 efficiently supported by the host hardware.])
1311 for f in $host_xm_file; do
1314 if test $count = a; then
1316 elif test $count = ax; then
1317 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1319 echo "Using the following host machine macro files:"
1320 for f in $host_xm_file; do
1321 echo " $srcdir/config/$f"
1324 echo "Using ${out_host_hook_obj} for host machine hooks."
1326 if test "$host_xm_file" != "$build_xm_file"; then
1328 for f in $build_xm_file; do
1331 if test $count = a; then
1333 elif test $count = ax; then
1334 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1336 echo "Using the following build machine macro files:"
1337 for f in $build_xm_file; do
1338 echo " $srcdir/config/$f"
1347 # Check if a valid thread package
1348 case ${enable_threads} in
1351 target_thread_file='single'
1355 target_thread_file='single'
1357 aix | dce | gnat | irix | posix | posix95 | rtems | \
1358 single | solaris | vxworks | win32 )
1359 target_thread_file=${enable_threads}
1362 echo "${enable_threads} is an unknown thread package" 1>&2
1367 if test x${thread_file} = x; then
1368 # No thread file set by target-specific clauses in config.gcc,
1369 # so use file chosen by default logic above
1370 thread_file=${target_thread_file}
1373 # Make gthr-default.h if we have a thread file.
1375 if test $thread_file != single; then
1376 rm -f gthr-default.h
1377 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1378 gthread_flags=-DHAVE_GTHR_DEFAULT
1380 AC_SUBST(gthread_flags)
1387 if test x$enable___cxa_atexit = xyes || \
1388 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1389 if test x$host = x$target; then
1390 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1391 [echo "__cxa_atexit can't be enabled on this target"])
1393 # We can't check for __cxa_atexit when building a cross, so assume
1397 if test x$use_cxa_atexit = xyes; then
1398 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1399 [Define if you want to use __cxa_atexit, rather than atexit, to
1400 register C++ destructors for local statics and global objects.
1401 This is essential for fully standards-compliant handling of
1402 destructors, but requires __cxa_atexit in libc.])
1406 # Look for a file containing extra machine modes.
1407 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1408 extra_modes_file='$(srcdir)'/config/${extra_modes}
1409 AC_SUBST(extra_modes_file)
1410 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1411 [Define to the name of a file containing a list of extra machine modes
1412 for this architecture.])
1415 # Convert extra_options into a form suitable for Makefile use.
1417 for f in $extra_options; do
1418 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1420 AC_SUBST(extra_opt_files)
1422 # auto-host.h is the file containing items generated by autoconf and is
1423 # the first file included by config.h.
1424 # If host=build, it is correct to have bconfig include auto-host.h
1425 # as well. If host!=build, we are in error and need to do more
1426 # work to find out the build config parameters.
1427 if test x$host = x$build
1429 build_auto=auto-host.h
1431 # We create a subdir, then run autoconf in the subdir.
1432 # To prevent recursion we set host and build for the new
1433 # invocation of configure to the build for this invocation
1440 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1441 *) realsrcdir=../${srcdir};;
1443 saved_CFLAGS="${CFLAGS}"
1444 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1445 ${realsrcdir}/configure \
1446 --enable-languages=${enable_languages-all} \
1447 --target=$target_alias --host=$build_alias --build=$build_alias
1448 CFLAGS="${saved_CFLAGS}"
1450 # We just finished tests for the build machine, so rename
1451 # the file auto-build.h in the gcc directory.
1452 mv auto-host.h ../auto-build.h
1455 build_auto=auto-build.h
1457 AC_SUBST(build_subdir)
1459 tm_file="${tm_file} defaults.h"
1460 tm_p_file="${tm_p_file} tm-preds.h"
1461 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1462 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1463 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1464 # put this back in temporarily.
1465 xm_file="auto-host.h ansidecl.h ${xm_file}"
1472 # Compile in configure arguments.
1473 if test -f configargs.h ; then
1474 # Being re-configured.
1475 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1476 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1478 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1481 # Double all backslashes and backslash all quotes to turn
1482 # gcc_config_arguments into a C string.
1483 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1484 $gcc_config_arguments
1486 gcc_config_arguments_str=`cat conftest.out`
1489 cat > configargs.h <<EOF
1490 /* Generated automatically. */
1491 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1492 static const char thread_model[] = "$thread_file";
1494 static const struct {
1495 const char *name, *value;
1496 } configure_default_options[] = $configure_default_options;
1500 # Internationalization
1501 ZW_GNU_GETTEXT_SISTER_DIR
1503 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1504 # -liconv on the link line twice.
1505 case "$LIBINTL" in *$LIBICONV*)
1509 AC_ARG_ENABLE(secureplt,
1510 [ --enable-secureplt enable -msecure-plt by default for PowerPC],
1513 # Windows32 Registry support for specifying GCC installation paths.
1514 AC_ARG_ENABLE(win32-registry,
1515 [ --disable-win32-registry
1516 disable lookup of installation paths in the
1517 Registry on Windows hosts
1518 --enable-win32-registry enable registry lookup (default)
1519 --enable-win32-registry=KEY
1520 use KEY instead of GCC version as the last portion
1521 of the registry key],,)
1524 win32 | pe | cygwin* | mingw32* | uwin*)
1525 if test "x$enable_win32_registry" != xno; then
1526 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1529 if test "x$enable_win32_registry" != xno; then
1530 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1531 [Define to 1 if installation paths should be looked up in the Windows
1532 Registry. Ignored on non-Windows hosts.])
1534 if test "x$enable_win32_registry" != xyes \
1535 && test "x$enable_win32_registry" != x; then
1536 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1537 [Define to be the last component of the Windows registry key under which
1538 to look for installation paths. The full key used will be
1539 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1540 The default is the GCC version number.])
1546 # Get an absolute path to the GCC top-level source directory
1547 holddir=`${PWDCMD-pwd}`
1549 topdir=`${PWDCMD-pwd}`
1552 # Conditionalize the makefile for this host machine.
1554 for f in ${host_xmake_file}
1556 if test -f ${srcdir}/config/$f
1558 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1562 # Conditionalize the makefile for this target machine.
1564 for f in ${tmake_file}
1566 if test -f ${srcdir}/config/$f
1568 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1571 tmake_file="${tmake_file_}"
1573 # If the host doesn't support symlinks, modify CC in
1574 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1575 # Otherwise, we can use "CC=$(CC)".
1579 cc_set_by_configure="\$(CC)"
1580 quoted_cc_set_by_configure="\$(CC)"
1581 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1582 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1585 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1586 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1587 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1588 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1592 # This is a terrible hack which will go away some day.
1593 host_cc_for_libada=${CC}
1594 AC_SUBST(host_cc_for_libada)
1596 out_object_file=`basename $out_file .c`.o
1598 tm_file_list="options.h"
1599 tm_include_list="options.h"
1600 for f in $tm_file; do
1603 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1604 tm_include_list="${tm_include_list} $f"
1607 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1608 tm_include_list="${tm_include_list} config/$f"
1615 for f in $tm_p_file; do
1618 tm_p_file_list="${tm_p_file_list} $f"
1619 tm_p_include_list="${tm_p_include_list} $f"
1622 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1623 tm_p_include_list="${tm_p_include_list} config/$f"
1629 for f in $xm_file; do
1632 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1633 xm_include_list="${xm_include_list} $f"
1636 xm_file_list="${xm_file_list} $f"
1637 xm_include_list="${xm_include_list} $f"
1640 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1641 xm_include_list="${xm_include_list} config/$f"
1647 host_xm_include_list=
1648 for f in $host_xm_file; do
1651 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1652 host_xm_include_list="${host_xm_include_list} $f"
1655 host_xm_file_list="${host_xm_file_list} $f"
1656 host_xm_include_list="${host_xm_include_list} $f"
1659 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1660 host_xm_include_list="${host_xm_include_list} config/$f"
1666 for f in $build_xm_file; do
1669 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1670 build_xm_include_list="${build_xm_include_list} $f"
1672 auto-build.h | auto-host.h )
1673 build_xm_file_list="${build_xm_file_list} $f"
1674 build_xm_include_list="${build_xm_include_list} $f"
1677 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1678 build_xm_include_list="${build_xm_include_list} config/$f"
1683 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1684 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1685 CROSS= AC_SUBST(CROSS)
1686 ALL=all.internal AC_SUBST(ALL)
1687 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1689 if test "x$with_build_sysroot" != x; then
1690 build_system_header_dir=$with_build_sysroot'$(NATIVE_SYSTEM_HEADER_DIR)'
1692 # This value is used, even on a native system, because
1693 # CROSS_SYSTEM_HEADER_DIR is just
1694 # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
1695 build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
1698 if test x$host != x$target
1700 CROSS="-DCROSS_COMPILE"
1702 SYSTEM_HEADER_DIR=$build_system_header_dir
1703 case "$host","$target" in
1704 # Darwin crosses can use the host system's libraries and headers,
1705 # because of the fat library support. Of course, it must be the
1706 # same version of Darwin on both sides. Allow the user to
1707 # just say --target=foo-darwin without a version number to mean
1708 # "the version on this system".
1709 *-*-darwin*,*-*-darwin*)
1710 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1711 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1712 if test $hostos = $targetos -o $targetos = darwin ; then
1714 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1719 i?86-*-*,x86_64-*-* \
1720 | powerpc*-*-*,powerpc64*-*-*)
1721 CROSS="$CROSS -DNATIVE_CROSS" ;;
1723 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1724 SYSTEM_HEADER_DIR=$build_system_header_dir
1727 # If this is a cross-compiler that does not
1728 # have its own set of headers then define
1731 # If this is using newlib, without having the headers available now,
1732 # then define inhibit_libc in LIBGCC2_CFLAGS.
1733 # This prevents libgcc2 from containing any code which requires libc
1736 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1737 test x$with_newlib = xyes ; } &&
1738 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1741 AC_SUBST(inhibit_libc)
1743 # When building gcc with a cross-compiler, we need to adjust things so
1744 # that the generator programs are still built with the native compiler.
1745 # Also, we cannot run fixincludes or fix-header.
1747 # These are the normal (build=host) settings:
1748 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1749 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1750 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1752 # Possibly disable fixproto, on a per-target basis.
1753 case ${use_fixproto} in
1758 STMP_FIXPROTO=stmp-fixproto
1761 AC_SUBST(STMP_FIXPROTO)
1763 # And these apply if build != host, or we are generating coverage data
1764 if test x$build != x$host || test "x$coverage_flags" != x
1766 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1768 if test "x$TARGET_SYSTEM_ROOT" = x; then
1769 if test "x$STMP_FIXPROTO" != x; then
1770 STMP_FIXPROTO=stmp-install-fixproto
1775 # Expand extra_headers to include complete path.
1776 # This substitutes for lots of t-* files.
1778 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1779 for file in ${extra_headers} ; do
1780 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1783 # Define collect2 in Makefile.
1784 case $host_can_use_collect2 in
1786 *) collect2='collect2$(exeext)' ;;
1788 AC_SUBST([collect2])
1790 # Add a definition of USE_COLLECT2 if system wants one.
1791 case $use_collect2 in
1792 no) use_collect2= ;;
1795 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1796 xm_defines="${xm_defines} USE_COLLECT2"
1797 case $host_can_use_collect2 in
1799 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1805 # ---------------------------
1806 # Assembler & linker features
1807 # ---------------------------
1809 # Identify the assembler which will work hand-in-glove with the newly
1810 # built GCC, so that we can examine its features. This is the assembler
1811 # which will be driven by the driver program.
1813 # If build != host, and we aren't building gas in-tree, we identify a
1814 # build->target assembler and hope that it will have the same features
1815 # as the host->target assembler we'll be using.
1816 gcc_cv_gas_major_version=
1817 gcc_cv_gas_minor_version=
1818 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1820 m4_pattern_allow([AS_FOR_TARGET])dnl
1821 AS_VAR_SET_IF(gcc_cv_as,, [
1822 if test -x "$DEFAULT_ASSEMBLER"; then
1823 gcc_cv_as="$DEFAULT_ASSEMBLER"
1824 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1825 && test -f ../gas/Makefile \
1826 && test x$build = x$host; then
1827 gcc_cv_as=../gas/as-new$build_exeext
1828 elif test -x as$build_exeext; then
1829 # Build using assembler in the current directory.
1830 gcc_cv_as=./as$build_exeext
1831 elif test -x $AS_FOR_TARGET; then
1832 gcc_cv_as="$AS_FOR_TARGET"
1834 AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET)
1837 ORIGINAL_AS_FOR_TARGET=$gcc_cv_as
1838 AC_SUBST(ORIGINAL_AS_FOR_TARGET)
1840 AC_MSG_CHECKING(what assembler to use)
1841 if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then
1842 # Single tree build which includes gas. 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.
1845 AC_MSG_RESULT(newly built gas)
1847 _gcc_COMPUTE_GAS_VERSION
1848 in_tree_gas_is_elf=no
1849 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1850 || (grep 'obj_format = multi' ../gas/Makefile \
1851 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1853 in_tree_gas_is_elf=yes
1856 AC_MSG_RESULT($gcc_cv_as)
1860 # Identify the linker which will work hand-in-glove with the newly
1861 # built GCC, so that we can examine its features. This is the linker
1862 # which will be driven by the driver program.
1864 # If build != host, and we aren't building gas in-tree, we identify a
1865 # build->target linker and hope that it will have the same features
1866 # as the host->target linker we'll be using.
1867 gcc_cv_gld_major_version=
1868 gcc_cv_gld_minor_version=
1869 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1870 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1872 AS_VAR_SET_IF(gcc_cv_ld,, [
1873 if test -x "$DEFAULT_LINKER"; then
1874 gcc_cv_ld="$DEFAULT_LINKER"
1875 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1876 && test -f ../ld/Makefile \
1877 && test x$build = x$host; then
1878 gcc_cv_ld=../ld/ld-new$build_exeext
1879 elif test -x collect-ld$build_exeext; then
1880 # Build using linker in the current directory.
1881 gcc_cv_ld=./collect-ld$build_exeext
1882 elif test -x $LD_FOR_TARGET; then
1883 gcc_cv_ld="$LD_FOR_TARGET"
1885 AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
1888 ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
1889 AC_SUBST(ORIGINAL_LD_FOR_TARGET)
1891 AC_MSG_CHECKING(what linker to use)
1892 if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then
1893 # Single tree build which includes ld. We want to prefer it
1894 # over whatever linker top-level may have detected, since
1895 # we'll use what we're building after installation anyway.
1896 AC_MSG_RESULT(newly built ld)
1898 in_tree_ld_is_elf=no
1899 if (grep 'EMUL = .*elf' ../ld/Makefile \
1900 || grep 'EMUL = .*linux' ../ld/Makefile \
1901 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1902 in_tree_ld_is_elf=yes
1904 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
1907 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1908 if test x$gcc_cv_gld_version != x; then
1912 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1913 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1916 AC_MSG_RESULT($gcc_cv_ld)
1920 # Figure out what nm we will be using.
1921 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1922 AS_VAR_SET_IF(gcc_cv_nm,, [
1923 if test -f $gcc_cv_binutils_srcdir/configure.in \
1924 && test -f ../binutils/Makefile; then
1925 gcc_cv_nm=../binutils/nm-new$build_exeext
1926 elif test -x nm$build_exeext; then
1927 gcc_cv_nm=./nm$build_exeext
1928 elif test -x $NM_FOR_TARGET; then
1929 gcc_cv_nm="$NM_FOR_TARGET"
1931 AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET)
1934 AC_MSG_CHECKING(what nm to use)
1935 if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then
1936 # Single tree build which includes binutils.
1937 AC_MSG_RESULT(newly built nm)
1940 AC_MSG_RESULT($gcc_cv_nm)
1944 ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm
1945 AC_SUBST(ORIGINAL_NM_FOR_TARGET)
1947 # Figure out what objdump we will be using.
1948 AS_VAR_SET_IF(gcc_cv_objdump,, [
1949 if test -f $gcc_cv_binutils_srcdir/configure.in \
1950 && test -f ../binutils/Makefile; then
1951 # Single tree build which includes binutils.
1952 gcc_cv_objdump=../binutils/objdump$build_exeext
1953 elif test -x objdump$build_exeext; then
1954 gcc_cv_objdump=./objdump$build_exeext
1955 elif test -x $OBJDUMP_FOR_TARGET; then
1956 gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
1958 AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
1961 AC_MSG_CHECKING(what objdump to use)
1962 if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then
1963 # Single tree build which includes binutils.
1964 AC_MSG_RESULT(newly built objdump)
1965 elif test x$gcc_cv_objdump = x; then
1966 AC_MSG_RESULT(not found)
1968 AC_MSG_RESULT($gcc_cv_objdump)
1971 # Figure out what assembler alignment features are present.
1972 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1976 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1977 [Define if your assembler supports .balign and .p2align.])])
1979 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1982 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1983 [Define if your assembler supports specifying the maximum number
1984 of bytes to skip when using the GAS .p2align command.])])
1986 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1988 [conftest_label1: .word 0
1990 conftest_label2: .word 0
1992 [if test x$gcc_cv_nm != x; then
1993 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1994 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1995 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1997 else gcc_cv_as_subsection_m1=yes
1999 rm -f conftest.nm1 conftest.nm2
2001 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2002 [Define if your assembler supports .subsection and .subsection -1 starts
2003 emitting at the beginning of your section.])])
2005 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2008 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2010 gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,
2012 [ .weakref foobar, barfnot],,
2013 [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])])
2015 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2018 .NSUBSPA $CODE$,COMDAT],,
2019 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2021 # .hidden needs to be supported in both the assembler and the linker,
2022 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2023 # This is irritatingly difficult to feature test for; we have to check the
2024 # date string after the version number. If we've got an in-tree
2025 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2027 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2028 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2033 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2034 [if test $in_tree_ld = yes ; then
2036 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2037 && test $in_tree_ld_is_elf = yes; then
2038 gcc_cv_ld_hidden=yes
2041 gcc_cv_ld_hidden=yes
2042 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2043 if echo "$ld_ver" | grep GNU > /dev/null; then
2045 ld_vers=`echo $ld_ver | sed -n \
2046 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2047 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2048 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2049 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2050 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2051 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2052 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2053 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2054 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2055 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2056 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2057 if test 0"$ld_date" -lt 20020404; then
2058 if test -n "$ld_date"; then
2059 # If there was date string, but was earlier than 2002-04-04, fail
2061 elif test -z "$ld_vers"; then
2062 # If there was no date string nor ld version number, something is wrong
2065 test -z "$ld_vers_patch" && ld_vers_patch=0
2066 if test "$ld_vers_major" -lt 2; then
2068 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2069 gcc_cv_ld_hidden="no"
2070 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2078 hppa64*-*-hpux* | ia64*-*-hpux*)
2079 gcc_cv_ld_hidden=yes
2087 libgcc_visibility=no
2088 AC_SUBST(libgcc_visibility)
2089 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2090 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2091 libgcc_visibility=yes
2092 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2093 [Define if your assembler and linker support .hidden.])
2096 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2097 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2105 [# GAS versions before 2.11 do not support uleb128,
2106 # despite appearing to.
2107 # ??? There exists an elf-specific test that will crash
2108 # the assembler. Perhaps it's better to figure out whether
2109 # arbitrary sections are supported and try the test.
2110 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2111 if echo "$as_ver" | grep GNU > /dev/null; then
2113 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2114 as_major=`echo $as_ver | sed 's/\..*//'`
2115 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2117 if test $as_major -eq 2 && test $as_minor -lt 11
2119 else gcc_cv_as_leb128=yes
2122 [AC_DEFINE(HAVE_AS_LEB128, 1,
2123 [Define if your assembler supports .sleb128 and .uleb128.])])
2125 # GAS versions up to and including 2.11.0 may mis-optimize
2127 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2135 .section .eh_frame,"aw",@progbits
2137 .4byte .LECIE1-.LSCIE1
2151 .4byte .LEFDE1-.LASFDE1
2153 .4byte .LASFDE1-__FRAME_BEGIN__
2161 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2162 cat > conftest.lit <<EOF
2163 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2164 0010 01000000 12000000 18000000 00000000 ................
2165 0020 08000000 04080000 0044 .........D @&t@
2167 cat > conftest.big <<EOF
2168 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2169 0010 00000001 00000012 00000018 00000000 ................
2170 0020 00000008 04000000 0844 .........D @&t@
2172 # If the assembler didn't choke, and we can objdump,
2173 # and we got the correct data, then succeed.
2174 if test x$gcc_cv_objdump != x \
2175 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2176 | tail -3 > conftest.got \
2177 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2178 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2180 gcc_cv_as_eh_frame=yes
2181 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2182 gcc_cv_as_eh_frame=buggy
2184 # Uh oh, what do we do now?
2185 gcc_cv_as_eh_frame=no
2188 if test $gcc_cv_as_eh_frame = buggy; then
2189 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2190 [Define if your assembler mis-optimizes .eh_frame data.])
2193 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2194 [elf,2,12,0], [--fatal-warnings],
2195 [.section .rodata.str, "aMS", @progbits, 1])
2196 if test $gcc_cv_as_shf_merge = no; then
2197 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2198 [elf,2,12,0], [--fatal-warnings],
2199 [.section .rodata.str, "aMS", %progbits, 1])
2201 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2202 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2203 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2205 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2206 [elf,2,16,0], [--fatal-warnings],
2207 [.section .text,"axG",@progbits,.foo,comdat])
2208 if test $gcc_cv_as_comdat_group = yes; then
2209 gcc_cv_as_comdat_group_percent=no
2211 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2212 [elf,2,16,0], [--fatal-warnings],
2213 [.section .text,"axG",%progbits,.foo,comdat])
2215 if test $in_tree_ld != yes && test x"$ld_vers" != x; then
2217 if test 0"$ld_date" -lt 20050308; then
2218 if test -n "$ld_date"; then
2219 # If there was date string, but was earlier than 2005-03-08, fail
2221 elif test "$ld_vers_major" -lt 2; then
2223 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2227 if test $comdat_group = no; then
2228 gcc_cv_as_comdat_group=no
2229 gcc_cv_as_comdat_group_percent=no
2232 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
2233 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2234 [Define 0/1 if your assembler and linker support COMDAT groups.])
2236 # Thread-local storage - the check is heavily parametrized.
2245 .section ".tdata","awT",@progbits
2248 ldq $27,__tls_get_addr($29) !literal!1
2249 lda $16,foo($29) !tlsgd!1
2250 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2251 ldq $27,__tls_get_addr($29) !literal!2
2252 lda $16,foo($29) !tlsldm!2
2253 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2254 ldq $1,foo($29) !gotdtprel
2255 ldah $2,foo($29) !dtprelhi
2256 lda $3,foo($2) !dtprello
2257 lda $4,foo($29) !dtprel
2258 ldq $1,foo($29) !gottprel
2259 ldah $2,foo($29) !tprelhi
2260 lda $3,foo($2) !tprello
2261 lda $4,foo($29) !tprel'
2264 tls_as_opt=--fatal-warnings
2268 .section ".tdata","awT",@progbits
2280 .section ".tdata","awT",@progbits
2284 addil LT%foo-$tls_gdidx$,gp
2285 ldo RT%foo-$tls_gdidx$(%r1),%arg0
2288 addil LT%foo-$tls_ldidx$,gp
2290 ldo RT%foo-$tls_ldidx$(%r1),%arg0
2291 addil LR%foo-$tls_dtpoff$,%ret0
2292 ldo RR%foo-$tls_dtpoff$(%r1),%t1
2294 addil LT%foo-$tls_ieoff$,gp
2295 ldw RT%foo-$tls_ieoff$(%r1),%t2
2298 addil LR%foo-$tls_leoff$,%t1
2299 ldo RR%foo-$tls_leoff$(%r1),%t2'
2302 tls_as_opt=--fatal-warnings
2306 .section ".tdata","awT",%progbits
2319 .section ".tdata","awT",@progbits
2323 leal foo@TLSGD(,%ebx,1), %eax
2324 leal foo@TLSLDM(%ebx), %eax
2325 leal foo@DTPOFF(%eax), %edx
2326 movl foo@GOTTPOFF(%ebx), %eax
2327 subl foo@GOTTPOFF(%ebx), %eax
2328 addl foo@GOTNTPOFF(%ebx), %eax
2329 movl foo@INDNTPOFF, %eax
2330 movl $foo@TPOFF, %eax
2331 subl $foo@TPOFF, %eax
2332 leal foo@NTPOFF(%ecx), %eax'
2335 tls_as_opt=--fatal-warnings
2339 .section ".tdata","awT",@progbits
2343 leaq foo@TLSGD(%rip), %rdi
2344 leaq foo@TLSLD(%rip), %rdi
2345 leaq foo@DTPOFF(%rax), %rdx
2346 movq foo@GOTTPOFF(%rip), %rax
2347 movq $foo@TPOFF, %rax'
2350 tls_as_opt=--fatal-warnings
2354 .section ".tdata","awT",@progbits
2357 addl r16 = @ltoff(@dtpmod(foo#)), gp
2358 addl r17 = @ltoff(@dtprel(foo#)), gp
2359 addl r18 = @ltoff(@tprel(foo#)), gp
2360 addl r19 = @dtprel(foo#), gp
2361 adds r21 = @dtprel(foo#), r13
2362 movl r23 = @dtprel(foo#)
2363 addl r20 = @tprel(foo#), gp
2364 adds r22 = @tprel(foo#), r13
2365 movl r24 = @tprel(foo#)'
2368 tls_as_opt=--fatal-warnings
2372 .section .tdata,"awT",@progbits
2376 addiu $4, $28, %tlsgd(x)
2377 addiu $4, $28, %tlsldm(x)
2378 lui $4, %dtprel_hi(x)
2379 addiu $4, $4, %dtprel_lo(x)
2380 lw $4, %gottprel(x)($28)
2381 lui $4, %tprel_hi(x)
2382 addiu $4, $4, %tprel_lo(x)'
2385 tls_as_opt='-32 --fatal-warnings'
2389 .section ".tdata","awT",@progbits
2397 addi 3,31,ld0@got@tlsgd
2399 addi 3,31,x1@got@tlsld
2402 addis 9,3,x2@dtprel@ha
2403 addi 9,9,x2@dtprel@l
2404 lwz 9,x3@got@tprel(31)
2407 addis 9,2,x2@tprel@ha
2408 addi 9,9,x2@tprel@l'
2411 tls_as_opt="-a32 --fatal-warnings"
2415 .section ".tdata","awT",@progbits
2423 addi 3,2,ld0@got@tlsgd
2429 addi 3,2,x1@got@tlsld
2435 addis 9,3,x2@dtprel@ha
2436 addi 9,9,x2@dtprel@l
2439 ld 9,x3@got@dtprel(2)
2445 tls_as_opt="-a64 --fatal-warnings"
2449 .section ".tdata","awT",@progbits
2458 l %r1,foo@GOTNTPOFF(%r12)
2459 l %r1,0(%r1):tls_load:foo
2460 bas %r14,0(%r1,%r13):tls_gdcall:foo
2461 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2464 tls_as_opt="-m31 --fatal-warnings"
2468 .section ".tdata","awT",@progbits
2476 lg %r1,foo@GOTNTPOFF(%r12)
2477 larl %r1,foo@INDNTPOFF
2478 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2479 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2482 tls_as_opt="-m64 -Aesame --fatal-warnings"
2484 sh-*-* | sh[34]-*-*)
2486 .section ".tdata","awT",@progbits
2496 tls_as_opt=--fatal-warnings
2500 sparc*-sun-solaris2.*)
2507 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2509 .section ".tdata",#alloc,#write,#tls
2512 sethi %tgd_hi22(foo), %o0
2513 add %o0, %tgd_lo10(foo), %o1
2514 add %l7, %o1, %o0, %tgd_add(foo)
2515 call __tls_get_addr, %tgd_call(foo)
2516 sethi %tldm_hi22(foo), %l1
2517 add %l1, %tldm_lo10(foo), %l2
2518 add %l7, %l2, %o0, %tldm_add(foo)
2519 call __tls_get_addr, %tldm_call(foo)
2520 sethi %tldo_hix22(foo), %l3
2521 xor %l3, %tldo_lox10(foo), %l4
2522 add %o0, %l4, %l5, %tldo_add(foo)
2523 sethi %tie_hi22(foo), %o3
2524 add %o3, %tie_lo10(foo), %o3
2525 ld [%l7 + %o3], %o2, %tie_ld(foo)
2526 add %g7, %o2, %o4, %tie_add(foo)
2527 sethi %tle_hix22(foo), %l1
2528 xor %l1, %tle_lox10(foo), %o5
2529 ld [%g7 + %o5], %o1'
2534 .section ".tdata","awT",@progbits
2537 sethi %tgd_hi22(foo), %o0
2538 add %o0, %tgd_lo10(foo), %o1
2539 add %l7, %o1, %o0, %tgd_add(foo)
2540 call __tls_get_addr, %tgd_call(foo)
2541 sethi %tldm_hi22(foo), %l1
2542 add %l1, %tldm_lo10(foo), %l2
2543 add %l7, %l2, %o0, %tldm_add(foo)
2544 call __tls_get_addr, %tldm_call(foo)
2545 sethi %tldo_hix22(foo), %l3
2546 xor %l3, %tldo_lox10(foo), %l4
2547 add %o0, %l4, %l5, %tldo_add(foo)
2548 sethi %tie_hi22(foo), %o3
2549 add %o3, %tie_lo10(foo), %o3
2550 ld [%l7 + %o3], %o2, %tie_ld(foo)
2551 add %g7, %o2, %o4, %tie_add(foo)
2552 sethi %tle_hix22(foo), %l1
2553 xor %l1, %tle_lox10(foo), %o5
2554 ld [%g7 + %o5], %o1'
2557 tls_as_opt="-32 --fatal-warnings"
2563 if test "x$enable_tls" = xno ; then
2564 : # TLS explicitly disabled.
2565 elif test "x$enable_tls" = xyes ; then
2566 set_have_as_tls=yes # TLS explicitly enabled.
2567 elif test -z "$tls_first_major"; then
2568 : # If we don't have a check, assume no support.
2570 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2571 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2572 [set_have_as_tls=yes])
2574 if test $set_have_as_tls = yes ; then
2575 AC_DEFINE(HAVE_AS_TLS, 1,
2576 [Define if your assembler supports thread-local storage.])
2579 # Target-specific assembler checks.
2581 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2582 gcc_cv_ld_static_dynamic=no
2583 if test $in_tree_ld = yes ; then
2584 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2585 gcc_cv_ld_static_dynamic=yes
2587 elif test x$gcc_cv_ld != x; then
2588 # Check if linker supports -Bstatic/-Bdynamic option
2589 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2590 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2591 gcc_cv_ld_static_dynamic=yes
2594 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2595 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2596 [Define if your linker supports -Bstatic/-Bdynamic option.])
2598 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2600 if test x"$demangler_in_ld" = xyes; then
2601 AC_MSG_CHECKING(linker --demangle support)
2602 gcc_cv_ld_demangle=no
2603 if test $in_tree_ld = yes; then
2604 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2605 gcc_cv_ld_demangle=yes
2607 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2608 # Check if the GNU linker supports --demangle option
2609 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2610 gcc_cv_ld_demangle=yes
2613 if test x"$gcc_cv_ld_demangle" = xyes; then
2614 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2615 [Define if your linker supports --demangle option.])
2617 AC_MSG_RESULT($gcc_cv_ld_demangle)
2621 # All TARGET_ABI_OSF targets.
2622 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2623 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2624 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2627 extbl $3, $2, $3 !lituse_bytoff!1
2628 ldq $2, a($29) !literal!1
2629 ldq $4, b($29) !literal!2
2630 ldq_u $3, 0($2) !lituse_base!1
2631 ldq $27, f($29) !literal!5
2632 jsr $26, ($27), f !lituse_jsr!5
2633 ldah $29, 0($26) !gpdisp!3
2634 lda $0, c($29) !gprel
2635 ldah $1, d($29) !gprelhigh
2636 lda $1, d($1) !gprellow
2637 lda $29, 0($29) !gpdisp!3],,
2638 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2639 [Define if your assembler supports explicit relocations.])])
2640 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2641 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2644 ldq $27, a($29) !literal!1
2645 jsr $26, ($27), a !lituse_jsrdirect!1],,
2646 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2647 [Define if your assembler supports the lituse_jsrdirect relocation.])])
2651 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2652 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2653 [-no-mul-bug-abort], [.text],,
2654 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2655 [Define if your assembler supports the -no-mul-bug-abort option.])])
2659 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2660 [.register %g2, #scratch],,
2661 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2662 [Define if your assembler supports .register.])])
2664 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2666 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2667 [Define if your assembler supports -relax option.])])
2669 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2670 gcc_cv_as_sparc_ua_pcrel,,
2678 .uaword %r_disp32(foo)],
2679 [if test x$gcc_cv_ld != x \
2680 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2681 gcc_cv_as_sparc_ua_pcrel=yes
2684 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2685 [Define if your assembler and linker support unaligned PC relative relocs.])
2687 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2688 gcc_cv_as_sparc_ua_pcrel_hidden,,
2693 .uaword %r_disp32(foo)
2694 .byte 0x32, 0x33, 0x34
2699 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2700 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2701 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2702 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2703 if $gcc_cv_objdump -R conftest 2> /dev/null \
2704 | grep 'DISP32' > /dev/null 2>&1; then
2707 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2711 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2712 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2713 ]) # unaligned pcrel relocs
2715 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2716 gcc_cv_as_sparc_offsetable_lo10,,
2719 or %g1, %lo(ab) + 12, %g1
2720 or %g1, %lo(ab + 12), %g1],
2721 [if test x$gcc_cv_objdump != x \
2722 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2723 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2724 gcc_cv_as_sparc_offsetable_lo10=yes
2726 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2727 [Define if your assembler supports offsetable %lo().])])
2731 i[34567]86-*-* | x86_64-*-*)
2734 cygwin* | pe | mingw32*)
2735 # Used for DWARF 2 in PE
2736 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2737 gcc_cv_as_ix86_pe_secrel32,
2743 [if test x$gcc_cv_ld != x \
2744 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2745 gcc_cv_as_ix86_pe_secrel32=yes
2748 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2749 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2753 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2754 gcc_cv_as_ix86_filds_fists,
2755 [2,9,0],, [filds mem; fists mem],,
2756 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2757 [Define if your assembler uses the new HImode fild and fist notation.])])
2759 gcc_GAS_CHECK_FEATURE([cmov syntax],
2760 gcc_cv_as_ix86_cmov_sun_syntax,,,
2761 [cmovl.l %edx, %eax],,
2762 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2763 [Define if your assembler supports the Sun syntax for cmov.])])
2765 # This one is used unconditionally by i386.[ch]; it is to be defined
2766 # to 1 if the feature is present, 0 otherwise.
2767 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2768 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2774 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2775 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2776 [Define true if the assembler supports '.long foo@GOTOFF'.])
2780 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2781 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2783 addl r15 = @ltoffx(x#), gp
2785 ld8.mov r16 = [[r15]], x#],,
2786 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2787 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2793 *-*-aix*) conftest_s=' .machine "pwr5"
2797 gcc_GAS_CHECK_FEATURE([.machine directive support],
2798 gcc_cv_as_machine_directive,,,
2799 [ .machine ppc7400])
2800 if test x$gcc_cv_as_machine_directive != xyes; then
2801 echo "*** This target requires an assembler supporting \".machine\"" >&2
2802 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2803 test x$build = x$target && exit 1
2807 *) conftest_s=' .machine power4
2812 gcc_GAS_CHECK_FEATURE([mfcr field support],
2813 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2815 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2816 [Define if your assembler supports mfcr field.])])
2819 *-*-aix*) conftest_s=' .machine "pwr5"
2822 *) conftest_s=' .machine power5
2827 gcc_GAS_CHECK_FEATURE([popcntb support],
2828 gcc_cv_as_powerpc_popcntb, [2,17,0],,
2830 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
2831 [Define if your assembler supports popcntb field.])])
2834 *-*-aix*) conftest_s=' .machine "pwr5x"
2837 *) conftest_s=' .machine power5
2842 gcc_GAS_CHECK_FEATURE([fp round support],
2843 gcc_cv_as_powerpc_fprnd, [2,17,0],,
2845 [AC_DEFINE(HAVE_AS_FPRND, 1,
2846 [Define if your assembler supports fprnd.])])
2849 *-*-aix*) conftest_s=' .csect .text[[PR]]
2851 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
2855 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
2856 *) conftest_s=' .text
2858 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
2861 gcc_GAS_CHECK_FEATURE([rel16 relocs],
2862 gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
2864 [AC_DEFINE(HAVE_AS_REL16, 1,
2865 [Define if your assembler supports R_PPC_REL16 relocs.])])
2869 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2870 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2871 [ lw $4,%gp_rel(foo)($4)],,
2872 [if test x$target_cpu_default = x
2873 then target_cpu_default=MASK_EXPLICIT_RELOCS
2874 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2879 # Mips and HP-UX need the GNU assembler.
2880 # Linux on IA64 might be able to use the Intel assembler.
2883 mips*-*-* | *-*-hpux* )
2884 if test x$gas_flag = xyes \
2885 || test x"$host" != x"$build" \
2886 || test ! -x "$gcc_cv_as" \
2887 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2890 echo "*** This configuration requires the GNU assembler" >&2
2896 # ??? Not all targets support dwarf2 debug_line, even within a version
2897 # of gas. Moreover, we need to emit a valid instruction to trigger any
2898 # info to the output file. So, as supported targets are added to gas 2.11,
2899 # add some instruction here to (also) show we expect this might work.
2900 # ??? Once 2.11 is released, probably need to add first known working
2901 # version to the per-target configury.
2903 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2904 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2905 | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-*)
2908 ia64*-*-* | s390*-*-*)
2915 if test x"$insn" != x; then
2917 .file 1 \"conftest.s\"
2920 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2921 gcc_cv_as_dwarf2_debug_line,
2922 [elf,2,11,0],, [$conftest_s],
2923 [if test x$gcc_cv_objdump != x \
2924 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2925 | grep debug_line > /dev/null 2>&1; then
2926 gcc_cv_as_dwarf2_debug_line=yes
2929 # The .debug_line file table must be in the exact order that
2930 # we specified the files, since these indices are also used
2931 # by DW_AT_decl_file. Approximate this test by testing if
2932 # the assembler bitches if the same index is assigned twice.
2933 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2934 gcc_cv_as_dwarf2_file_buggy,,,
2938 if test $gcc_cv_as_dwarf2_debug_line = yes \
2939 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2940 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2941 [Define if your assembler supports dwarf2 .file/.loc directives,
2942 and preserves file table indices exactly as given.])
2945 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2946 gcc_cv_as_gdwarf2_flag,
2947 [elf,2,11,0], [--gdwarf2], [$insn],,
2948 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2949 [Define if your assembler supports the --gdwarf2 option.])])
2951 gcc_GAS_CHECK_FEATURE([--gstabs option],
2952 gcc_cv_as_gstabs_flag,
2953 [elf,2,11,0], [--gstabs], [$insn],
2954 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2955 # and warns about it, but still exits successfully. So check for
2957 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2959 else gcc_cv_as_gstabs_flag=yes
2961 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2962 [Define if your assembler supports the --gstabs option.])])
2965 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2966 gcc_cv_ld_ro_rw_mix=unknown
2967 if test $in_tree_ld = yes ; then
2968 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2969 && test $in_tree_ld_is_elf = yes; then
2970 gcc_cv_ld_ro_rw_mix=read-write
2972 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2973 echo '.section myfoosect, "a"' > conftest1.s
2974 echo '.section myfoosect, "aw"' > conftest2.s
2975 echo '.byte 1' >> conftest2.s
2976 echo '.section myfoosect, "a"' > conftest3.s
2977 echo '.byte 0' >> conftest3.s
2978 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2979 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2980 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2981 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2982 conftest2.o conftest3.o > /dev/null 2>&1; then
2983 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2984 | sed -e '/myfoosect/!d' -e N`
2985 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2986 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2987 gcc_cv_ld_ro_rw_mix=read-only
2989 gcc_cv_ld_ro_rw_mix=read-write
2994 rm -f conftest.* conftest[123].*
2997 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2998 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2999 [Define if your linker links a mix of read-only
3000 and read-write sections into a read-write section.])
3002 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
3004 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
3005 gcc_cv_ld_eh_frame_hdr=no
3006 if test $in_tree_ld = yes ; then
3007 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
3008 && test $in_tree_ld_is_elf = yes; then
3009 gcc_cv_ld_eh_frame_hdr=yes
3011 elif test x$gcc_cv_ld != x; then
3012 # Check if linker supports --eh-frame-hdr option
3013 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
3014 gcc_cv_ld_eh_frame_hdr=yes
3017 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
3018 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
3019 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
3020 [Define if your linker supports --eh-frame-hdr option.])
3022 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
3024 AC_MSG_CHECKING(linker position independent executable support)
3026 if test $in_tree_ld = yes ; then
3027 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
3028 && test $in_tree_ld_is_elf = yes; then
3031 elif test x$gcc_cv_ld != x; then
3032 # Check if linker supports -pie option
3033 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
3037 if test x"$gcc_cv_ld_pie" = xyes; then
3038 AC_DEFINE(HAVE_LD_PIE, 1,
3039 [Define if your linker supports -pie option.])
3041 AC_MSG_RESULT($gcc_cv_ld_pie)
3047 AC_CACHE_CHECK(linker --as-needed support,
3048 gcc_cv_ld_as_needed,
3049 [gcc_cv_ld_as_needed=no
3050 if test $in_tree_ld = yes ; then
3051 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
3052 && test $in_tree_ld_is_elf = yes; then
3053 gcc_cv_ld_as_needed=yes
3055 elif test x$gcc_cv_ld != x; then
3056 # Check if linker supports --as-needed and --no-as-needed options
3057 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
3058 gcc_cv_ld_as_needed=yes
3062 if test x"$gcc_cv_ld_as_needed" = xyes; then
3063 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
3064 [Define if your linker supports --as-needed and --no-as-needed options.])
3067 case "$target:$tm_file" in
3068 powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
3069 AC_CACHE_CHECK(linker support for omitting dot symbols,
3070 gcc_cv_ld_no_dot_syms,
3071 [gcc_cv_ld_no_dot_syms=no
3072 if test $in_tree_ld = yes ; then
3073 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
3074 gcc_cv_ld_no_dot_syms=yes
3076 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
3077 cat > conftest1.s <<EOF
3081 cat > conftest2.s <<EOF
3082 .section ".opd","aw"
3087 .quad .LEfoo,.TOC.@tocbase,0
3093 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
3094 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
3095 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
3096 gcc_cv_ld_no_dot_syms=yes
3098 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3101 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3102 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3103 [Define if your PowerPC64 linker only needs function descriptor syms.])
3108 AC_CACHE_CHECK(linker --sysroot support,
3110 [gcc_cv_ld_sysroot=no
3111 if test $in_tree_ld = yes ; then
3112 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
3113 gcc_cv_ld_sysroot=yes
3115 elif test x$gcc_cv_ld != x; then
3116 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3117 gcc_cv_ld_sysroot=yes
3120 if test x"$gcc_cv_ld_sysroot" = xyes; then
3121 AC_DEFINE(HAVE_LD_SYSROOT, 1,
3122 [Define if your linker supports --sysroot.])
3125 if test x$with_sysroot = x && test x$host = x$target \
3126 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3127 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3128 [Define to PREFIX/include if cpp should also search that directory.])
3131 # Test for stack protector support in target C library.
3134 AC_CACHE_CHECK(__stack_chk_fail in target GNU C library,
3135 gcc_cv_libc_provides_ssp,
3136 [gcc_cv_libc_provides_ssp=no
3137 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3138 if test "x$with_sysroot" = x; then
3139 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3140 elif test "x$with_sysroot" = xyes; then
3141 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3143 glibc_header_dir="${with_sysroot}/usr/include"
3146 glibc_header_dir=/usr/include
3148 # glibc 2.4 and later provides __stack_chk_fail and
3149 # either __stack_chk_guard, or TLS access to stack guard canary.
3150 if test -f $glibc_header_dir/features.h \
3151 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
3152 $glibc_header_dir/features.h > /dev/null; then
3153 if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
3154 $glibc_header_dir/features.h > /dev/null; then
3155 gcc_cv_libc_provides_ssp=yes
3156 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
3157 $glibc_header_dir/features.h > /dev/null \
3158 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
3159 $glibc_header_dir/features.h > /dev/null; then
3160 gcc_cv_libc_provides_ssp=yes
3163 *) gcc_cv_libc_provides_ssp=no ;;
3165 if test x$gcc_cv_libc_provides_ssp = xyes; then
3166 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
3167 [Define if your target C library provides stack protector support])
3170 # Find out what GC implementation we want, or may, use.
3172 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3180 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3183 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3188 echo "Using $GGC for garbage collection."
3190 # Use the system's zlib library.
3192 zlibinc="-I\$(srcdir)/../zlib"
3193 AC_ARG_WITH(system-zlib,
3194 [ --with-system-zlib use installed libz],
3201 dnl Very limited version of automake's enable-maintainer-mode
3203 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3204 dnl maintainer-mode is disabled by default
3205 AC_ARG_ENABLE(maintainer-mode,
3206 [ --enable-maintainer-mode
3207 enable make rules and dependencies not useful
3208 (and sometimes confusing) to the casual installer],
3209 maintainer_mode=$enableval,
3212 AC_MSG_RESULT($maintainer_mode)
3214 if test "$maintainer_mode" = "yes"; then
3225 # Make empty files to contain the specs and options for each language.
3226 # Then add #include lines to for a compiler that has specs and/or options.
3231 for subdir in . $subdirs
3233 if test -f $srcdir/$subdir/lang.opt; then
3234 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3236 if test -f $srcdir/$subdir/lang-specs.h; then
3237 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3239 if test -f $srcdir/$subdir/$subdir-tree.def; then
3240 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3244 # These (without "all_") are set in each config-lang.in.
3245 # `language' must be a single word so is spelled singularly.
3250 all_outputs='Makefile gccbug mklibgcc libada-mk'
3251 # List of language makefile fragments.
3253 # List of language subdirectory makefiles. Deprecated.
3255 # Files for gengtype
3256 all_gtfiles="$target_gtfiles"
3257 # Files for gengtype with language
3258 all_gtfiles_files_langs=
3259 all_gtfiles_files_files=
3261 # Add the language fragments.
3262 # Languages are added via two mechanisms. Some information must be
3263 # recorded in makefile variables, these are defined in config-lang.in.
3264 # We accumulate them and plug them into the main Makefile.
3265 # The other mechanism is a set of hooks for each of the main targets
3266 # like `clean', `install', etc.
3268 language_hooks="Make-hooks"
3278 . ${srcdir}/$s/config-lang.in
3279 if test "x$language" = x
3281 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3284 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3285 if test -f ${srcdir}/$s/Makefile.in
3286 then all_lang_makefiles="$s/Makefile"
3288 all_languages="$all_languages $language"
3289 if test "x$boot_language" = xyes
3291 all_boot_languages="$all_boot_languages $language"
3293 all_compilers="$all_compilers $compilers"
3294 all_stagestuff="$all_stagestuff $stagestuff"
3295 all_outputs="$all_outputs $outputs"
3296 all_gtfiles="$all_gtfiles $gtfiles"
3299 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3300 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3304 # Pick up gtfiles for c
3307 . ${srcdir}/c-config-lang.in
3308 all_gtfiles="$all_gtfiles $gtfiles"
3311 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3312 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3316 for language in $all_languages
3318 check_languages="$check_languages check-$language"
3321 # We link each language in with a set of hooks, reached indirectly via
3326 target_list="all.cross start.encap rest.encap tags \
3327 install-common install-man \
3328 uninstall info man srcextra srcman srcinfo \
3329 mostlyclean clean distclean maintainer-clean \
3330 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3331 for t in $target_list
3334 for lang in $all_languages
3338 echo "lang.$t: $x" >> Make-hooks
3347 echo "dir ." > .gdbinit
3348 echo "dir ${srcdir}" >> .gdbinit
3349 if test x$gdb_needs_out_file_path = xyes
3351 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3353 if test "x$subdirs" != x; then
3356 echo "dir ${srcdir}/$s" >> .gdbinit
3359 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3361 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3362 # absolute path for gcc_tooldir based on inserting the number of up-directory
3363 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3364 # $(libsubdir)/@(unlibsubdir) based path.
3365 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3366 # make and thus we'd get different behavior depending on where we built the
3368 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3369 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3371 changequote(<<, >>)dnl
3372 # An explanation of the sed strings:
3373 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3374 # -e 's|/$||' match a trailing forward slash and eliminates it
3375 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3376 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3378 # (*) Note this pattern overwrites the first character of the string
3379 # with a forward slash if one is not already present. This is not a
3380 # problem because the exact names of the sub-directories concerned is
3381 # unimportant, just the number of them matters.
3383 # The practical upshot of these patterns is like this:
3385 # prefix exec_prefix result
3386 # ------ ----------- ------
3388 # /foo/ /foo/bar ../
3389 # /foo /foo/bar/ ../
3390 # /foo/ /foo/bar/ ../
3391 # /foo /foo/bar/ugg ../../
3394 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3395 changequote([, ])dnl
3397 AC_SUBST(gcc_tooldir)
3400 # Find a directory in which to install a shared libgcc.
3402 AC_ARG_ENABLE(version-specific-runtime-libs,
3403 [ --enable-version-specific-runtime-libs
3404 specify that runtime libraries should be
3405 installed in a compiler-specific directory])
3407 AC_ARG_WITH(slibdir,
3408 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3409 slibdir="$with_slibdir",
3410 if test "${enable_version_specific_runtime_libs+set}" = set; then
3411 slibdir='$(libsubdir)'
3412 elif test "$host" != "$target"; then
3413 slibdir='$(build_tooldir)/lib'
3419 objdir=`${PWDCMD-pwd}`
3422 # Substitute configuration variables
3425 AC_SUBST(all_boot_languages)
3426 AC_SUBST(all_compilers)
3427 AC_SUBST(all_gtfiles)
3428 AC_SUBST(all_gtfiles_files_langs)
3429 AC_SUBST(all_gtfiles_files_files)
3430 AC_SUBST(all_lang_makefrags)
3431 AC_SUBST(all_lang_makefiles)
3432 AC_SUBST(all_languages)
3433 AC_SUBST(all_stagestuff)
3434 AC_SUBST(build_exeext)
3435 AC_SUBST(build_install_headers_dir)
3436 AC_SUBST(build_xm_file_list)
3437 AC_SUBST(build_xm_include_list)
3438 AC_SUBST(build_xm_defines)
3439 AC_SUBST(check_languages)
3440 AC_SUBST(cc_set_by_configure)
3441 AC_SUBST(quoted_cc_set_by_configure)
3442 AC_SUBST(cpp_install_dir)
3443 AC_SUBST(xmake_file)
3444 AC_SUBST(tmake_file)
3445 AC_SUBST(extra_gcc_objs)
3446 AC_SUBST(extra_headers_list)
3447 AC_SUBST(extra_objs)
3448 AC_SUBST(extra_parts)
3449 AC_SUBST(extra_passes)
3450 AC_SUBST(extra_programs)
3451 AC_SUBST(float_h_file)
3452 AC_SUBST(gcc_config_arguments)
3453 AC_SUBST(gcc_gxx_include_dir)
3454 AC_SUBST(libstdcxx_incdir)
3455 AC_SUBST(host_exeext)
3456 AC_SUBST(host_xm_file_list)
3457 AC_SUBST(host_xm_include_list)
3458 AC_SUBST(host_xm_defines)
3459 AC_SUBST(out_host_hook_obj)
3461 AC_SUBST(lang_opt_files)
3462 AC_SUBST(lang_specs_files)
3463 AC_SUBST(lang_tree_files)
3464 AC_SUBST(local_prefix)
3466 AC_SUBST(objc_boehm_gc)
3468 AC_SUBST(out_object_file)
3469 AC_SUBST(stage_prefix_set_by_configure)
3470 AC_SUBST(quoted_stage_prefix_set_by_configure)
3471 AC_SUBST(thread_file)
3472 AC_SUBST(tm_file_list)
3473 AC_SUBST(tm_include_list)
3474 AC_SUBST(tm_defines)
3475 AC_SUBST(tm_p_file_list)
3476 AC_SUBST(tm_p_include_list)
3477 AC_SUBST(xm_file_list)
3478 AC_SUBST(xm_include_list)
3479 AC_SUBST(xm_defines)
3480 AC_SUBST(c_target_objs)
3481 AC_SUBST(cxx_target_objs)
3482 AC_SUBST(target_cpu_default)
3484 AC_SUBST_FILE(language_hooks)
3487 if test x${build} = x${host} ; then
3488 if test x${host} = x${target} ; then
3489 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3491 echo "Links are now set up to build a cross-compiler" 1>&2
3492 echo " from ${host} to ${target}." 1>&2
3495 if test x${host} = x${target} ; then
3496 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3497 echo " for ${target}." 1>&2
3499 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3500 echo " from ${host} to ${target}." 1>&2
3504 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3505 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3507 # Configure the subdirectories
3508 # AC_CONFIG_SUBDIRS($subdirs)
3510 # Create the Makefile
3511 # and configure language subdirectories
3512 AC_CONFIG_FILES($all_outputs)
3514 AC_CONFIG_COMMANDS([default],
3516 case ${CONFIG_HEADERS} in
3517 *auto-host.h:config.in*)
3520 # Make sure all the subdirs exist.
3521 for d in $subdirs doc build
3523 test -d $d || mkdir $d
3525 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3526 # bootstrapping and the installation procedure can still use
3527 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3528 # FLAGS_TO_PASS has been modified to solve the problem there.
3529 # This is virtually a duplicate of what happens in configure.lang; we do
3530 # an extra check to make sure this only happens if ln -s can be used.
3533 for d in ${subdirs} ; do
3534 STARTDIR=`${PWDCMD-pwd}`
3536 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3539 $LN_S ../$t $t 2>/dev/null
3546 [subdirs='$subdirs'])