2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
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 # This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO.
136 if test x${gcc_gxx_include_dir} = x; then
137 if test x${enable_version_specific_runtime_libs} = xyes; then
138 gcc_gxx_include_dir='${libsubdir}/include/c++'
140 libstdcxx_incdir='include/c++/$(version)'
141 if test x$host != x$target; then
142 libstdcxx_incdir="$target_alias/$libstdcxx_incdir"
144 gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir"
148 AC_ARG_WITH(cpp_install_dir,
149 [ --with-cpp-install-dir=DIR
150 install the user visible C preprocessor in DIR
151 (relative to PREFIX) as well as PREFIX/bin],
152 [if test x$withval = xyes; then
153 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
154 elif test x$withval != xno; then
155 cpp_install_dir=$withval
158 # We would like to our source tree to be readonly. However when releases or
159 # pre-releases are generated, the flex/bison generated files as well as the
160 # various formats of manuals need to be included along with the rest of the
161 # sources. Therefore we have --enable-generated-files-in-srcdir to do
164 AC_MSG_CHECKING([whether to place generated files in the source directory])
165 dnl generated-files-in-srcdir is disabled by default
166 AC_ARG_ENABLE(generated-files-in-srcdir,
167 [ --enable-generated-files-in-srcdir
168 put copies of generated files in source dir
169 intended for creating source tarballs for users
170 without texinfo bison or flex.],
171 generated_files_in_srcdir=$enableval,
172 generated_files_in_srcdir=no)
174 AC_MSG_RESULT($generated_files_in_srcdir)
176 if test "$generated_files_in_srcdir" = "yes"; then
183 # -------------------
184 # Find default linker
185 # -------------------
189 [ --with-gnu-ld arrange to work with GNU ld.],
190 gnu_ld_flag="$with_gnu_ld",
193 # With pre-defined ld
195 [ --with-ld arrange to use the specified ld (full pathname)],
196 DEFAULT_LINKER="$with_ld")
197 if test x"${DEFAULT_LINKER+set}" = x"set"; then
198 if test ! -x "$DEFAULT_LINKER"; then
199 AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
200 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
203 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
204 [Define to enable the use of a default linker.])
207 gnu_ld=`if test x"$gnu_ld_flag" = x"yes"; then echo 1; else echo 0; fi`
208 AC_DEFINE_UNQUOTED(HAVE_GNU_LD, $gnu_ld, [Define if using GNU ld.])
210 AC_MSG_CHECKING([whether a default linker was specified])
211 if test x"${DEFAULT_LINKER+set}" = x"set"; then
212 if test x"$gnu_ld_flag" = x"no"; then
213 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
215 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
221 # With demangler in GNU ld
222 AC_ARG_WITH(demangler-in-ld,
223 [ --with-demangler-in-ld try to use demangler in GNU ld.],
224 demangler_in_ld="$with_demangler_in_ld",
227 # ----------------------
228 # Find default assembler
229 # ----------------------
233 [ --with-gnu-as arrange to work with GNU as],
234 gas_flag="$with_gnu_as",
238 [ --with-as arrange to use the specified as (full pathname)],
239 DEFAULT_ASSEMBLER="$with_as")
240 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
241 if test ! -x "$DEFAULT_ASSEMBLER"; then
242 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
243 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
246 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
247 [Define to enable the use of a default assembler.])
250 AC_MSG_CHECKING([whether a default assembler was specified])
251 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
252 if test x"$gas_flag" = x"no"; then
253 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
255 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
265 # If a non-executable a.out is present (e.g. created by GNU as above even if
266 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
267 # file, even when creating an executable, so an execution test fails.
268 # Remove possible default executable files to avoid this.
270 # FIXME: This really belongs into AC_PROG_CC and can be removed once
271 # Autoconf includes it.
272 rm -f a.out a.exe b.out
274 # Find the native compiler
277 # autoconf is lame and doesn't give us any substitution variable for this.
278 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
279 NO_MINUS_C_MINUS_O=yes
281 OUTPUT_OPTION='-o $@'
283 AC_SUBST(NO_MINUS_C_MINUS_O)
284 AC_SUBST(OUTPUT_OPTION)
286 # Remove the -O2: for historical reasons, unless bootstrapping we prefer
287 # optimizations to be activated explicitly by the toplevel.
290 *) CFLAGS=`echo $CFLAGS | sed "s/-O[[s0-9]]* *//" ` ;;
294 # -------------------------
295 # Check C compiler features
296 # -------------------------
301 # sizeof(char) is 1 by definition.
302 AC_CHECK_SIZEOF(void *)
303 AC_CHECK_SIZEOF(short)
305 AC_CHECK_SIZEOF(long)
306 AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
307 AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)])
309 # ---------------------
310 # Warnings and checking
311 # ---------------------
313 # Check $CC warning features (if it's GCC).
314 # We want to use -pedantic, but we don't want warnings about
318 # So, we only use -pedantic if we can disable those warnings.
320 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \
321 -Wmissing-prototypes], [loose_warn])
322 ACX_PROG_CC_WARNING_OPTS([-Wc++-compat], [cxx_compat_warn])
323 ACX_PROG_CC_WARNING_OPTS([-Wold-style-definition \
324 -Wmissing-format-attribute], [strict_warn])
325 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long -Wno-variadic-macros \
326 -Wno-overlength-strings], [strict_warn])
327 ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual], [strict_warn])
329 # The above macros do nothing if the compiler is not GCC. However, the
330 # Makefile has more goo to add other flags, so this variabl is used to
331 # enables warnings only for GCC.
333 if test "x$GCC" = "xyes"; then
334 warn_cflags='$(GCC_WARN_CFLAGS)'
336 AC_SUBST(warn_cflags)
338 # Enable expensive internal checks
340 if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
344 AC_ARG_ENABLE(checking,
345 [ --enable-checking[=LIST]
346 enable expensive run-time checks. With LIST,
347 enable only specific categories of checks.
348 Categories are: yes,no,all,none,release.
349 Flags are: assert,df,fold,gc,gcac,misc,
350 rtlflag,rtl,runtime,tree,valgrind.],
351 [ac_checking_flags="${enableval}"],[
352 # Determine the default checks.
353 if test x$is_release = x ; then
354 ac_checking_flags=yes
356 ac_checking_flags=release
358 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
359 for check in release $ac_checking_flags
362 # these set all the flags to specific states
363 yes) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ;
364 ac_fold_checking= ; ac_gc_checking=1 ;
365 ac_gc_always_collect= ; ac_rtl_checking= ;
366 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
367 ac_tree_checking=1 ; ac_valgrind_checking= ;;
368 no|none) ac_assert_checking= ; ac_checking= ; ac_df_checking= ;
369 ac_fold_checking= ; ac_gc_checking= ;
370 ac_gc_always_collect= ; ac_rtl_checking= ;
371 ac_rtlflag_checking= ; ac_runtime_checking= ;
372 ac_tree_checking= ; ac_valgrind_checking= ;;
373 all) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ;
374 ac_fold_checking=1 ; ac_gc_checking=1 ;
375 ac_gc_always_collect=1 ; ac_rtl_checking=1 ;
376 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
377 ac_tree_checking=1 ; ac_valgrind_checking= ;;
378 release) ac_assert_checking=1 ; ac_checking= ; ac_df_checking= ;
379 ac_fold_checking= ; ac_gc_checking= ;
380 ac_gc_always_collect= ; ac_rtl_checking= ;
381 ac_rtlflag_checking= ; ac_runtime_checking=1 ;
382 ac_tree_checking= ; ac_valgrind_checking= ;;
383 # these enable particular checks
384 assert) ac_assert_checking=1 ;;
385 df) ac_df_checking=1 ;;
386 fold) ac_fold_checking=1 ;;
387 gc) ac_gc_checking=1 ;;
388 gcac) ac_gc_always_collect=1 ;;
389 misc) ac_checking=1 ;;
390 rtl) ac_rtl_checking=1 ;;
391 rtlflag) ac_rtlflag_checking=1 ;;
392 runtime) ac_runtime_checking=1 ;;
393 tree) ac_tree_checking=1 ;;
394 valgrind) ac_valgrind_checking=1 ;;
395 *) AC_MSG_ERROR(unknown check category $check) ;;
401 if test x$ac_checking != x ; then
402 AC_DEFINE(ENABLE_CHECKING, 1,
403 [Define if you want more run-time sanity checks. This one gets a grab
404 bag of miscellaneous but relatively cheap checks.])
405 nocommon_flag=-fno-common
407 AC_SUBST(nocommon_flag)
408 if test x$ac_df_checking != x ; then
409 AC_DEFINE(ENABLE_DF_CHECKING, 1,
410 [Define if you want more run-time sanity checks for dataflow.])
412 if test x$ac_assert_checking != x ; then
413 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
414 [Define if you want assertions enabled. This is a cheap check.])
416 GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING)
417 if test x$ac_runtime_checking != x ; then
418 AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
419 [Define if you want runtime assertions enabled. This is a cheap check.])
421 if test x$ac_tree_checking != x ; then
422 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
423 [Define if you want all operations on trees (the basic data
424 structure of the front ends) to be checked for dynamic type safety
425 at runtime. This is moderately expensive. The tree browser debugging
426 routines will also be enabled by this option.
428 TREEBROWSER=tree-browser.o
430 AC_SUBST(TREEBROWSER)
431 if test x$ac_rtl_checking != x ; then
432 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
433 [Define if you want all operations on RTL (the basic data structure
434 of the optimizer and back end) to be checked for dynamic type safety
435 at runtime. This is quite expensive.])
437 if test x$ac_rtlflag_checking != x ; then
438 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
439 [Define if you want RTL flag accesses to be checked against the RTL
440 codes that are supported for each access macro. This is relatively
443 if test x$ac_gc_checking != x ; then
444 AC_DEFINE(ENABLE_GC_CHECKING, 1,
445 [Define if you want the garbage collector to do object poisoning and
446 other memory allocation checks. This is quite expensive.])
448 if test x$ac_gc_always_collect != x ; then
449 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
450 [Define if you want the garbage collector to operate in maximally
451 paranoid mode, validating the entire heap and collecting garbage at
452 every opportunity. This is extremely expensive.])
454 if test x$ac_fold_checking != x ; then
455 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
456 [Define if you want fold checked that it never destructs its argument.
457 This is quite expensive.])
459 valgrind_path_defines=
462 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
463 dnl # an if statement. This was the source of very frustrating bugs
464 dnl # in converting to autoconf 2.5x!
465 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
467 if test x$ac_valgrind_checking != x ; then
468 # It is certainly possible that there's valgrind but no valgrind.h.
469 # GCC relies on making annotations so we must have both.
470 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
471 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
472 [[#include <valgrind/memcheck.h>
473 #ifndef VALGRIND_DISCARD
474 #error VALGRIND_DISCARD not defined
476 [gcc_cv_header_valgrind_memcheck_h=yes],
477 [gcc_cv_header_valgrind_memcheck_h=no])
478 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
479 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
480 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
481 [[#include <memcheck.h>
482 #ifndef VALGRIND_DISCARD
483 #error VALGRIND_DISCARD not defined
485 [gcc_cv_header_memcheck_h=yes],
486 [gcc_cv_header_memcheck_h=no])
487 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
488 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
489 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
490 if test "x$valgrind_path" = "x" \
491 || (test $have_valgrind_h = no \
492 && test $gcc_cv_header_memcheck_h = no \
493 && test $gcc_cv_header_valgrind_memcheck_h = no); then
494 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
496 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
497 valgrind_command="$valgrind_path -q"
498 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
499 [Define if you want to run subprograms and generated programs
500 through valgrind (a memory checker). This is extremely expensive.])
501 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
502 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
503 [Define if valgrind's valgrind/memcheck.h header is installed.])
505 if test $gcc_cv_header_memcheck_h = yes; then
506 AC_DEFINE(HAVE_MEMCHECK_H, 1,
507 [Define if valgrind's memcheck.h header is installed.])
510 AC_SUBST(valgrind_path_defines)
511 AC_SUBST(valgrind_command)
513 AC_ARG_ENABLE(mapped-location,
514 [ --enable-mapped-location location_t is fileline integer cookie],,
515 enable_mapped_location=no)
517 if test "$enable_mapped_location" = yes ; then
518 AC_DEFINE(USE_MAPPED_LOCATION, 1,
519 [Define if location_t is fileline integer cookie.])
522 # Enable code coverage collection
523 AC_ARG_ENABLE(coverage,
524 [ --enable-coverage[=LEVEL]
525 enable compiler's code coverage collection.
526 Use to measure compiler performance and locate
527 unused parts of the compiler. With LEVEL, specify
528 optimization. Values are opt, noopt,
530 [case "${enableval}" in
532 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
535 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
538 # a.k.a. --disable-coverage
542 AC_MSG_ERROR(unknown coverage setting $enableval)
546 AC_SUBST(coverage_flags)
548 AC_ARG_ENABLE(gather-detailed-mem-stats,
549 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
550 [enable_gather_detailed_mem_stats=no])
551 if test x$enable_gather_detailed_mem_stats = xyes ; then
552 AC_DEFINE(GATHER_STATISTICS, 1,
553 [Define to enable detailed memory allocation stats gathering.])
556 # -------------------------------
557 # Miscenalleous configure options
558 # -------------------------------
562 [ --with-stabs arrange to use stabs instead of host debug format],
566 # Determine whether or not multilibs are enabled.
567 AC_ARG_ENABLE(multilib,
568 [ --enable-multilib enable library support for multiple ABIs],
569 [], [enable_multilib=yes])
570 AC_SUBST(enable_multilib)
572 # Enable __cxa_atexit for C++.
573 AC_ARG_ENABLE(__cxa_atexit,
574 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
577 # Enable C extension for decimal float if target supports it.
578 AC_ARG_ENABLE(decimal-float,
579 [ --enable-decimal-float={no,yes,bid,dpd}
580 enable decimal float extension to C. Selecting 'bid'
581 or 'dpd' choses which decimal floating point format
584 case $enable_decimal_float in
585 yes | no | bid | dpd) ;;
586 *) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float.
587 Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
592 powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*)
593 enable_decimal_float=yes
596 AC_MSG_WARN(decimal float is not supported for this target, ignored)
597 enable_decimal_float=no
602 dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi`
603 AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp,
604 [Define to 1 to enable decimal float extension to C.])
606 # x86's use BID format instead of DPD
607 case x$enable_decimal_float in
610 i?86*-*-linux* | x86_64*-*-linux*)
611 enable_decimal_float=bid
614 enable_decimal_float=dpd
619 # ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper
620 # dependency on libdecnumber.
621 enable_decimal_float=dpd
624 AC_SUBST(enable_decimal_float)
626 bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi`
627 AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid,
628 [Define to 1 to specify that we are using the BID decimal floating
629 point format instead of DPD])
632 # Pass with no value to take the default
633 # Pass with a value to specify a thread package
634 AC_ARG_ENABLE(threads,
635 [ --enable-threads enable thread usage for target GCC
636 --enable-threads=LIB use LIB thread package for target GCC],,
640 [ --enable-tls enable or disable generation of tls code
641 overriding the assembler check for tls support],
645 *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls.
646 Valid choices are 'yes' and 'no'.]) ;;
650 AC_ARG_ENABLE(objc-gc,
651 [ --enable-objc-gc enable the use of Boehm's garbage collector with
652 the GNU Objective-C runtime],
653 if test x$enable_objc_gc = xno; then
661 [ --with-dwarf2 force the default debug format to be DWARF 2],
662 dwarf2="$with_dwarf2",
665 AC_ARG_ENABLE(shared,
666 [ --disable-shared don't provide a shared libgcc],
668 case $enable_shared in
672 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
673 for pkg in $enableval; do
674 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
681 ], [enable_shared=yes])
682 AC_SUBST(enable_shared)
684 AC_ARG_WITH(build-sysroot,
685 [ --with-build-sysroot=sysroot
686 use sysroot as the system root during the build])
689 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
691 case ${with_sysroot} in
692 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
693 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
696 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
697 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
699 if test "x$prefix" = xNONE; then
700 test_prefix=/usr/local
704 if test "x$exec_prefix" = xNONE; then
705 test_exec_prefix=$test_prefix
707 test_exec_prefix=$exec_prefix
709 case ${TARGET_SYSTEM_ROOT} in
710 "${test_prefix}"|"${test_prefix}/"*|\
711 "${test_exec_prefix}"|"${test_exec_prefix}/"*|\
712 '${prefix}'|'${prefix}/'*|\
713 '${exec_prefix}'|'${exec_prefix}/'*)
714 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
715 TARGET_SYSTEM_ROOT_DEFINE="$t"
720 TARGET_SYSTEM_ROOT_DEFINE=
721 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
723 AC_SUBST(TARGET_SYSTEM_ROOT)
724 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
725 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
727 # Build with intermodule optimisations
728 AC_ARG_ENABLE(intermodule,
729 [ --enable-intermodule build the compiler in one step],
730 [case ${enable_intermodule} in
731 yes) onestep="-onestep";;
737 # Sanity check enable_languages in case someone does not run the toplevel
738 # configure # script.
739 AC_ARG_ENABLE(languages,
740 [ --enable-languages=LIST specify which front-ends to build],
741 [case ,${enable_languages}, in
743 # go safe -- we cannot be much sure without the toplevel
745 # analysis of which target libs are present and usable
749 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
754 enable_languages=c,${enable_languages}
757 [enable_languages=c])
759 # Used by documentation targets
760 AC_SUBST(datarootdir)
764 # -------------------------
765 # Checks for other programs
766 # -------------------------
770 # Find some useful tools
772 # We need awk to create options.c and options.h.
773 # Bail out if it's missing.
775 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
783 # By default, the Darwin ranlib will not treat common symbols as
784 # definitions when building the archive table of contents. Other
785 # ranlibs do that; pass an option to the Darwin ranlib that makes
786 # it behave similarly.
792 AC_SUBST(ranlib_flags)
796 # See if cmp has --ignore-initial.
797 gcc_AC_PROG_CMP_IGNORE_INITIAL
799 # See if we have the mktemp command.
800 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
802 # See if makeinfo has been installed and is modern enough
803 # that we can use it.
804 ACX_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
805 [GNU texinfo.* \([0-9][0-9.]*\)],
807 if test $gcc_cv_prog_makeinfo_modern = no; then
809 *** Makeinfo is missing or too old.
810 *** Info documentation will not be built.])
817 # Is pod2man recent enough to regenerate manpages?
818 AC_MSG_CHECKING([for recent Pod::Man])
819 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
821 GENERATED_MANPAGES=generated-manpages
826 AC_SUBST(GENERATED_MANPAGES)
828 MISSING="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing"
831 dnl Don't use AC_PROG_LEX; we insist on flex.
832 dnl LEXLIB is not useful in gcc.
833 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
836 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
838 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
839 # check for build == host before using them.
842 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
843 && test -d ../binutils ; then
844 NM='$(objdir)/../binutils/nm-new'
846 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
850 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
851 && test -d ../binutils ; then
852 AR='$(objdir)/../binutils/ar'
854 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
858 # --------------------
859 # Checks for C headers
860 # --------------------
862 AC_MSG_CHECKING(for GNU C library)
863 AC_CACHE_VAL(gcc_cv_glibc,
864 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
865 [[#include <features.h>]], [[
866 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
867 #error Not a GNU C library system
871 AC_MSG_RESULT($gcc_cv_glibc)
872 if test $gcc_cv_glibc = yes; then
873 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
876 # Need to reject headers which give warnings, so that the -Werror bootstrap
877 # works later. *sigh* This needs to come before all header checks.
884 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
885 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
886 sys/resource.h sys/param.h sys/times.h sys/stat.h \
887 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
889 # Check for thread headers.
890 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
891 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
893 # These tests can't be done till we know if we have limits.h.
902 # These libraries may be used by collect2.
903 # We may need a special search path to get them linked.
904 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
906 for libs in '' -lld -lmld \
907 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
908 '-L/usr/lib/cmplrs/cc3.11 -lmld'
911 AC_TRY_LINK_FUNC(ldopen,
912 [gcc_cv_collect2_libs="$libs"; break])
915 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
916 case $gcc_cv_collect2_libs in
918 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
920 AC_SUBST(COLLECT2_LIBS)
922 # When building Ada code on Alpha, we need exc_resume which is usually in
923 # -lexc. So test for it.
926 AC_SEARCH_LIBS(exc_resume, exc)
929 AC_SUBST(GNAT_LIBEXC)
931 # Some systems put ldexp and frexp in libm instead of libc; assume
932 # they're both in the same place. jcf-dump needs them.
935 AC_SEARCH_LIBS(ldexp, m)
940 # Use <inttypes.h> only if it exists,
941 # doesn't clash with <sys/types.h>, and declares intmax_t.
942 AC_MSG_CHECKING(for inttypes.h)
943 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
944 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
945 [[#include <sys/types.h>
946 #include <inttypes.h>]],
947 [[intmax_t i = -1;]])],
948 [gcc_cv_header_inttypes_h=yes],
949 [gcc_cv_header_inttypes_h=no])])
950 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
951 if test $gcc_cv_header_inttypes_h = yes; then
952 AC_DEFINE(HAVE_INTTYPES_H, 1,
953 [Define if you have a working <inttypes.h> header file.])
956 dnl Disabled until we have a complete test for buggy enum bitfields.
957 dnl gcc_AC_C_ENUM_BF_UNSIGNED
959 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
960 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
961 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
962 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
963 putchar_unlocked putc_unlocked)
964 AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
965 sysconf strsignal getrusage nl_langinfo scandir alphasort \
966 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
969 if test x$ac_cv_func_mbstowcs = xyes; then
970 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
971 [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
977 [gcc_cv_func_mbstowcs_works=yes],
978 [gcc_cv_func_mbstowcs_works=no],
979 [gcc_cv_func_mbstowcs_works=yes])])
980 if test x$gcc_cv_func_mbstowcs_works = xyes; then
981 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
982 [Define this macro if mbstowcs does not crash when its
983 first argument is NULL.])
987 AC_CHECK_TYPE(ssize_t, int)
989 # Try to determine the array type of the second argument of getgroups
990 # for the target system (int or gid_t).
992 if test "${target}" = "${build}"; then
993 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
996 # This condition may need some tweaking. It should include all
997 # targets where the array type of the second argument of getgroups
998 # is int and the type of gid_t is not equivalent to int.
999 *-*-sunos* | *-*-ultrix*)
1000 TARGET_GETGROUPS_T=int
1003 TARGET_GETGROUPS_T=gid_t
1007 AC_SUBST(TARGET_GETGROUPS_T)
1009 gcc_AC_FUNC_MMAP_BLACKLIST
1013 # Under VMS, vfork works very differently than on Unix. The standard test
1014 # won't work, and it isn't easily adaptable. It makes more sense to
1016 ac_cv_func_vfork_works=yes
1022 # Until we have in-tree GNU iconv:
1024 AC_SUBST(LIBICONV_DEP)
1030 # We will need to find libiberty.h and ansidecl.h
1031 saved_CFLAGS="$CFLAGS"
1032 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1033 gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
1034 strsignal strstr strverscmp \
1035 errno snprintf vsnprintf vasprintf malloc realloc calloc \
1036 free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1037 #include "ansidecl.h"
1038 #include "system.h"])
1040 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1041 #include "ansidecl.h"
1043 #ifdef HAVE_SYS_RESOURCE_H
1044 #include <sys/resource.h>
1048 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1049 #include "ansidecl.h"
1051 #ifdef HAVE_SYS_RESOURCE_H
1052 #include <sys/resource.h>
1054 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
1055 [Define to \`long' if <sys/resource.h> doesn't define.])])
1057 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1058 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1059 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1060 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1061 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1062 #include "ansidecl.h"
1071 gcc_AC_CHECK_DECLS(times, , ,[
1072 #include "ansidecl.h"
1074 #ifdef HAVE_SYS_TIMES_H
1075 #include <sys/times.h>
1079 gcc_AC_CHECK_DECLS(sigaltstack, , ,[
1080 #include "ansidecl.h"
1085 # More time-related stuff.
1086 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1087 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1088 #include "ansidecl.h"
1090 #ifdef HAVE_SYS_TIMES_H
1091 #include <sys/times.h>
1093 ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
1094 if test $ac_cv_struct_tms = yes; then
1095 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1096 [Define if <sys/times.h> defines struct tms.])
1099 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1100 # revisit after autoconf 2.50.
1101 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1102 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1103 #include "ansidecl.h"
1105 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
1106 if test $gcc_cv_type_clock_t = yes; then
1107 AC_DEFINE(HAVE_CLOCK_T, 1,
1108 [Define if <time.h> defines clock_t.])
1111 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1112 CFLAGS="$saved_CFLAGS"
1114 gcc_AC_INITFINI_ARRAY
1116 # mkdir takes a single argument on some systems.
1117 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1125 # With Setjmp/Longjmp based exception handling.
1126 AC_ARG_ENABLE(sjlj-exceptions,
1127 [ --enable-sjlj-exceptions
1128 arrange to use setjmp/longjmp exception handling],
1129 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1130 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1131 [Define 0/1 to force the choice for exception handling model.])])
1133 # For platforms with the unwind ABI which includes an unwind library,
1134 # libunwind, we can choose to use the system libunwind.
1135 AC_ARG_WITH(system-libunwind,
1136 [ --with-system-libunwind use installed libunwind])
1138 # config.gcc also contains tests of with_system_libunwind.
1139 if test x$with_system_libunwind = xyes; then
1140 AC_DEFINE(HAVE_GETIPINFO, 1,
1141 [Define to 1 if system unwind library has _Unwind_GetIPInfo.])
1144 # --------------------------------------------------------
1145 # Build, host, and target specific configuration fragments
1146 # --------------------------------------------------------
1148 # Collect build-machine-specific information.
1149 . ${srcdir}/config.build
1151 # Collect host-machine-specific information.
1152 . ${srcdir}/config.host
1156 # Collect target-machine-specific information.
1157 . ${srcdir}/config.gcc
1159 extra_objs="${host_extra_objs} ${extra_objs}"
1160 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1162 # Default the target-machine variables that were not explicitly set.
1163 if test x"$tm_file" = x
1164 then tm_file=$cpu_type/$cpu_type.h; fi
1166 if test x"$extra_headers" = x
1167 then extra_headers=; fi
1169 if test x$md_file = x
1170 then md_file=$cpu_type/$cpu_type.md; fi
1172 if test x$out_file = x
1173 then out_file=$cpu_type/$cpu_type.c; fi
1175 if test x"$tmake_file" = x
1176 then tmake_file=$cpu_type/t-$cpu_type
1179 if test x"$dwarf2" = xyes
1180 then tm_file="$tm_file tm-dwarf2.h"
1183 # Say what files are being used for the output code and MD file.
1184 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1185 echo "Using \`$srcdir/config/$md_file' as machine description file."
1187 # If any of the xm_file variables contain nonexistent files, warn
1188 # about them and drop them.
1191 for x in $build_xm_file; do
1192 if test -f $srcdir/config/$x
1194 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1200 for x in $host_xm_file; do
1201 if test -f $srcdir/config/$x
1203 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1209 for x in $xm_file; do
1210 if test -f $srcdir/config/$x
1212 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1218 for f in $tm_file; do
1221 if test $count = ax; then
1222 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1224 echo "Using the following target machine macro files:"
1225 for f in $tm_file; do
1226 echo " $srcdir/config/$f"
1230 if test x$need_64bit_hwint = xyes; then
1231 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1232 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1235 if test x$use_long_long_for_widest_fast_int = xyes; then
1236 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1237 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1238 efficiently supported by the host hardware.])
1242 for f in $host_xm_file; do
1245 if test $count = a; then
1247 elif test $count = ax; then
1248 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1250 echo "Using the following host machine macro files:"
1251 for f in $host_xm_file; do
1252 echo " $srcdir/config/$f"
1255 echo "Using ${out_host_hook_obj} for host machine hooks."
1257 if test "$host_xm_file" != "$build_xm_file"; then
1259 for f in $build_xm_file; do
1262 if test $count = a; then
1264 elif test $count = ax; then
1265 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1267 echo "Using the following build machine macro files:"
1268 for f in $build_xm_file; do
1269 echo " $srcdir/config/$f"
1276 AC_CACHE_CHECK([whether mcontext_t fields have underscores],
1277 gcc_cv_mcontext_underscores,
1279 #include <sys/cdefs.h>
1280 #include <sys/signal.h>
1281 #include <ucontext.h>
1282 int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; }
1284 gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes))
1285 if test $gcc_cv_mcontext_underscores = yes; then
1286 AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl
1287 [mcontext_t fields start with __])
1296 # Check if a valid thread package
1297 case ${enable_threads} in
1300 target_thread_file='single'
1304 target_thread_file='single'
1306 aix | dce | gnat | irix | posix | posix95 | rtems | \
1307 single | solaris | vxworks | win32 )
1308 target_thread_file=${enable_threads}
1311 echo "${enable_threads} is an unknown thread package" 1>&2
1316 if test x${thread_file} = x; then
1317 # No thread file set by target-specific clauses in config.gcc,
1318 # so use file chosen by default logic above
1319 thread_file=${target_thread_file}
1322 # Make gthr-default.h if we have a thread file.
1324 if test $thread_file != single; then
1325 rm -f gthr-default.h
1326 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1327 gthread_flags=-DHAVE_GTHR_DEFAULT
1329 AC_SUBST(gthread_flags)
1336 if test x$enable___cxa_atexit = xyes || \
1337 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1338 if test x$host = x$target; then
1340 # mingw32 doesn't have __cxa_atexit but uses atexit registration
1341 # keyed to flag_use_cxa_atexit
1346 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1347 [echo "__cxa_atexit can't be enabled on this target"])
1351 # We can't check for __cxa_atexit when building a cross, so assume
1355 if test x$use_cxa_atexit = xyes; then
1356 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2,
1357 [Define if you want to use __cxa_atexit, rather than atexit, to
1358 register C++ destructors for local statics and global objects.
1359 This is essential for fully standards-compliant handling of
1360 destructors, but requires __cxa_atexit in libc.])
1365 if test x$with_system_libunwind = xyes; then
1366 if test x$host = x$target; then
1367 AC_SEARCH_LIBS(_Unwind_GetIPInfo, unwind,, [use_getipinfo=no])
1370 GCC_TARGET_TEMPLATE(HAVE_GETIPINFO)
1371 if test x$use_getipinfo = xyes; then
1372 AC_DEFINE(HAVE_GETIPINFO, 1,
1373 [Define to 1 if system unwind library has _Unwind_GetIPInfo.])
1375 echo "The system unwind library does not support _Unwind_GetIPInfo."
1378 # Look for a file containing extra machine modes.
1379 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1380 extra_modes_file='$(srcdir)'/config/${extra_modes}
1381 AC_SUBST(extra_modes_file)
1382 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1383 [Define to the name of a file containing a list of extra machine modes
1384 for this architecture.])
1387 # Convert extra_options into a form suitable for Makefile use.
1389 for f in $extra_options; do
1390 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1392 AC_SUBST(extra_opt_files)
1394 # auto-host.h is the file containing items generated by autoconf and is
1395 # the first file included by config.h.
1396 # If host=build, it is correct to have bconfig include auto-host.h
1397 # as well. If host!=build, we are in error and need to do more
1398 # work to find out the build config parameters.
1399 if test x$host = x$build
1401 build_auto=auto-host.h
1403 # We create a subdir, then run autoconf in the subdir.
1404 # To prevent recursion we set host and build for the new
1405 # invocation of configure to the build for this invocation
1412 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1413 *) realsrcdir=../${srcdir};;
1415 saved_CFLAGS="${CFLAGS}"
1416 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1417 ${realsrcdir}/configure \
1418 --enable-languages=${enable_languages-all} \
1419 --target=$target_alias --host=$build_alias --build=$build_alias
1420 CFLAGS="${saved_CFLAGS}"
1422 # We just finished tests for the build machine, so rename
1423 # the file auto-build.h in the gcc directory.
1424 mv auto-host.h ../auto-build.h
1427 build_auto=auto-build.h
1429 AC_SUBST(build_subdir)
1431 tm_file="${tm_file} defaults.h"
1432 tm_p_file="${tm_p_file} tm-preds.h"
1433 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1434 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1435 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1436 # put this back in temporarily.
1437 xm_file="auto-host.h ansidecl.h ${xm_file}"
1444 # Compile in configure arguments.
1445 if test -f configargs.h ; then
1446 # Being re-configured.
1447 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1448 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1450 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1453 # Double all backslashes and backslash all quotes to turn
1454 # gcc_config_arguments into a C string.
1455 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1456 $gcc_config_arguments
1458 gcc_config_arguments_str=`cat conftest.out`
1461 cat > configargs.h <<EOF
1462 /* Generated automatically. */
1463 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1464 static const char thread_model[] = "$thread_file";
1466 static const struct {
1467 const char *name, *value;
1468 } configure_default_options[] = $configure_default_options;
1472 # Internationalization
1473 ZW_GNU_GETTEXT_SISTER_DIR
1475 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1476 # -liconv on the link line twice.
1477 case "$LIBINTL" in *$LIBICONV*)
1481 AC_ARG_ENABLE(secureplt,
1482 [ --enable-secureplt enable -msecure-plt by default for PowerPC],
1485 # Windows32 Registry support for specifying GCC installation paths.
1486 AC_ARG_ENABLE(win32-registry,
1487 [ --disable-win32-registry
1488 disable lookup of installation paths in the
1489 Registry on Windows hosts
1490 --enable-win32-registry enable registry lookup (default)
1491 --enable-win32-registry=KEY
1492 use KEY instead of GCC version as the last portion
1493 of the registry key],,)
1496 win32 | pe | cygwin* | mingw32* | uwin*)
1497 if test "x$enable_win32_registry" != xno; then
1498 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1501 if test "x$enable_win32_registry" != xno; then
1502 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1503 [Define to 1 if installation paths should be looked up in the Windows
1504 Registry. Ignored on non-Windows hosts.])
1506 if test "x$enable_win32_registry" != xyes \
1507 && test "x$enable_win32_registry" != x; then
1508 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1509 [Define to be the last component of the Windows registry key under which
1510 to look for installation paths. The full key used will be
1511 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1512 The default is the GCC version number.])
1518 # Get an absolute path to the GCC top-level source directory
1519 holddir=`${PWDCMD-pwd}`
1521 topdir=`${PWDCMD-pwd}`
1524 # Conditionalize the makefile for this host machine.
1526 for f in ${host_xmake_file}
1528 if test -f ${srcdir}/config/$f
1530 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1534 # Conditionalize the makefile for this target machine.
1536 for f in ${tmake_file}
1538 if test -f ${srcdir}/config/$f
1540 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1543 tmake_file="${tmake_file_}"
1545 # This is a terrible hack which will go away some day.
1546 host_cc_for_libada=${CC}
1547 AC_SUBST(host_cc_for_libada)
1549 out_object_file=`basename $out_file .c`.o
1551 tm_file_list="options.h"
1552 tm_include_list="options.h"
1553 for f in $tm_file; do
1556 f=`echo $f | sed 's/^..//'`
1557 tm_file_list="${tm_file_list} $f"
1558 tm_include_list="${tm_include_list} $f"
1561 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1562 tm_include_list="${tm_include_list} $f"
1565 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1566 tm_include_list="${tm_include_list} config/$f"
1573 for f in $tm_p_file; do
1576 tm_p_file_list="${tm_p_file_list} $f"
1577 tm_p_include_list="${tm_p_include_list} $f"
1580 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1581 tm_p_include_list="${tm_p_include_list} config/$f"
1587 for f in $xm_file; do
1590 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1591 xm_include_list="${xm_include_list} $f"
1594 xm_file_list="${xm_file_list} $f"
1595 xm_include_list="${xm_include_list} $f"
1598 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1599 xm_include_list="${xm_include_list} config/$f"
1605 host_xm_include_list=
1606 for f in $host_xm_file; do
1609 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1610 host_xm_include_list="${host_xm_include_list} $f"
1613 host_xm_file_list="${host_xm_file_list} $f"
1614 host_xm_include_list="${host_xm_include_list} $f"
1617 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1618 host_xm_include_list="${host_xm_include_list} config/$f"
1624 for f in $build_xm_file; do
1627 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1628 build_xm_include_list="${build_xm_include_list} $f"
1630 auto-build.h | auto-host.h )
1631 build_xm_file_list="${build_xm_file_list} $f"
1632 build_xm_include_list="${build_xm_include_list} $f"
1635 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1636 build_xm_include_list="${build_xm_include_list} config/$f"
1641 # Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a
1642 # cross-compiler which does not use the native headers and libraries.
1643 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1644 CROSS= AC_SUBST(CROSS)
1645 ALL=all.internal AC_SUBST(ALL)
1646 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1648 if test "x$with_build_sysroot" != x; then
1649 build_system_header_dir=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
1651 # This value is used, even on a native system, because
1652 # CROSS_SYSTEM_HEADER_DIR is just
1653 # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
1654 build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
1657 if test x$host != x$target
1659 CROSS="-DCROSS_DIRECTORY_STRUCTURE"
1661 SYSTEM_HEADER_DIR=$build_system_header_dir
1662 case "$host","$target" in
1663 # Darwin crosses can use the host system's libraries and headers,
1664 # because of the fat library support. Of course, it must be the
1665 # same version of Darwin on both sides. Allow the user to
1666 # just say --target=foo-darwin without a version number to mean
1667 # "the version on this system".
1668 *-*-darwin*,*-*-darwin*)
1669 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1670 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1671 if test $hostos = $targetos -o $targetos = darwin ; then
1673 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1678 i?86-*-*,x86_64-*-* \
1679 | powerpc*-*-*,powerpc64*-*-*)
1680 CROSS="$CROSS -DNATIVE_CROSS" ;;
1682 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1683 SYSTEM_HEADER_DIR=$build_system_header_dir
1686 # If this is a cross-compiler that does not
1687 # have its own set of headers then define
1690 # If this is using newlib, without having the headers available now,
1691 # then define inhibit_libc in LIBGCC2_CFLAGS.
1692 # This prevents libgcc2 from containing any code which requires libc
1695 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1696 test x$with_newlib = xyes ; } &&
1697 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1700 AC_SUBST(inhibit_libc)
1702 # When building gcc with a cross-compiler, we need to adjust things so
1703 # that the generator programs are still built with the native compiler.
1704 # Also, we cannot run fixincludes or fix-header.
1706 # These are the normal (build=host) settings:
1707 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1708 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1709 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1711 # Possibly disable fixproto, on a per-target basis.
1712 case ${use_fixproto} in
1717 STMP_FIXPROTO=stmp-fixproto
1720 AC_SUBST(STMP_FIXPROTO)
1722 # And these apply if build != host, or we are generating coverage data
1723 if test x$build != x$host || test "x$coverage_flags" != x
1725 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1727 if test "x$TARGET_SYSTEM_ROOT" = x; then
1728 if test "x$STMP_FIXPROTO" != x; then
1729 STMP_FIXPROTO=stmp-install-fixproto
1734 # Expand extra_headers to include complete path.
1735 # This substitutes for lots of t-* files.
1737 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1738 for file in ${extra_headers} ; do
1739 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1742 # If use_gcc_tgmath is set, append ginclude/tgmath.h.
1743 if test x"$use_gcc_tgmath" = xyes
1744 then extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/tgmath.h"
1747 # Define collect2 in Makefile.
1748 case $host_can_use_collect2 in
1750 *) collect2='collect2$(exeext)' ;;
1752 AC_SUBST([collect2])
1754 # Add a definition of USE_COLLECT2 if system wants one.
1755 case $use_collect2 in
1756 no) use_collect2= ;;
1759 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1760 xm_defines="${xm_defines} USE_COLLECT2"
1761 case $host_can_use_collect2 in
1763 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1769 # ---------------------------
1770 # Assembler & linker features
1771 # ---------------------------
1773 # Identify the assembler which will work hand-in-glove with the newly
1774 # built GCC, so that we can examine its features. This is the assembler
1775 # which will be driven by the driver program.
1777 # If build != host, and we aren't building gas in-tree, we identify a
1778 # build->target assembler and hope that it will have the same features
1779 # as the host->target assembler we'll be using.
1780 gcc_cv_gas_major_version=
1781 gcc_cv_gas_minor_version=
1782 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1784 m4_pattern_allow([AS_FOR_TARGET])dnl
1785 AS_VAR_SET_IF(gcc_cv_as,, [
1786 if test -x "$DEFAULT_ASSEMBLER"; then
1787 gcc_cv_as="$DEFAULT_ASSEMBLER"
1788 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1789 && test -f ../gas/Makefile \
1790 && test x$build = x$host; then
1791 gcc_cv_as=../gas/as-new$build_exeext
1792 elif test -x as$build_exeext; then
1793 # Build using assembler in the current directory.
1794 gcc_cv_as=./as$build_exeext
1795 elif test -x $AS_FOR_TARGET; then
1796 gcc_cv_as="$AS_FOR_TARGET"
1798 AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET)
1801 ORIGINAL_AS_FOR_TARGET=$gcc_cv_as
1802 AC_SUBST(ORIGINAL_AS_FOR_TARGET)
1803 case "$ORIGINAL_AS_FOR_TARGET" in
1804 ./as | ./as$build_exeext) ;;
1805 *) AC_CONFIG_FILES(as:exec-tool.in, [chmod +x as]) ;;
1808 AC_MSG_CHECKING(what assembler to use)
1809 if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then
1810 # Single tree build which includes gas. We want to prefer it
1811 # over whatever linker top-level may have detected, since
1812 # we'll use what we're building after installation anyway.
1813 AC_MSG_RESULT(newly built gas)
1815 _gcc_COMPUTE_GAS_VERSION
1816 in_tree_gas_is_elf=no
1817 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1818 || (grep 'obj_format = multi' ../gas/Makefile \
1819 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1821 in_tree_gas_is_elf=yes
1824 AC_MSG_RESULT($gcc_cv_as)
1828 # Identify the linker which will work hand-in-glove with the newly
1829 # built GCC, so that we can examine its features. This is the linker
1830 # which will be driven by the driver program.
1832 # If build != host, and we aren't building gas in-tree, we identify a
1833 # build->target linker and hope that it will have the same features
1834 # as the host->target linker we'll be using.
1835 gcc_cv_gld_major_version=
1836 gcc_cv_gld_minor_version=
1837 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1838 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1840 AS_VAR_SET_IF(gcc_cv_ld,, [
1841 if test -x "$DEFAULT_LINKER"; then
1842 gcc_cv_ld="$DEFAULT_LINKER"
1843 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1844 && test -f ../ld/Makefile \
1845 && test x$build = x$host; then
1846 gcc_cv_ld=../ld/ld-new$build_exeext
1847 elif test -x collect-ld$build_exeext; then
1848 # Build using linker in the current directory.
1849 gcc_cv_ld=./collect-ld$build_exeext
1850 elif test -x $LD_FOR_TARGET; then
1851 gcc_cv_ld="$LD_FOR_TARGET"
1853 AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
1856 ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
1857 AC_SUBST(ORIGINAL_LD_FOR_TARGET)
1858 case "$ORIGINAL_LD_FOR_TARGET" in
1859 ./collect-ld | ./collect-ld$build_exeext) ;;
1860 *) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;;
1863 AC_MSG_CHECKING(what linker to use)
1864 if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then
1865 # Single tree build which includes ld. We want to prefer it
1866 # over whatever linker top-level may have detected, since
1867 # we'll use what we're building after installation anyway.
1868 AC_MSG_RESULT(newly built ld)
1870 in_tree_ld_is_elf=no
1871 if (grep 'EMUL = .*elf' ../ld/Makefile \
1872 || grep 'EMUL = .*linux' ../ld/Makefile \
1873 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1874 in_tree_ld_is_elf=yes
1876 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
1879 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1880 if test x$gcc_cv_gld_version != x; then
1884 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1885 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1888 AC_MSG_RESULT($gcc_cv_ld)
1892 # Figure out what nm we will be using.
1893 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1894 AS_VAR_SET_IF(gcc_cv_nm,, [
1895 if test -f $gcc_cv_binutils_srcdir/configure.in \
1896 && test -f ../binutils/Makefile \
1897 && test x$build = x$host; then
1898 gcc_cv_nm=../binutils/nm-new$build_exeext
1899 elif test -x nm$build_exeext; then
1900 gcc_cv_nm=./nm$build_exeext
1901 elif test -x $NM_FOR_TARGET; then
1902 gcc_cv_nm="$NM_FOR_TARGET"
1904 AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET)
1907 AC_MSG_CHECKING(what nm to use)
1908 if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then
1909 # Single tree build which includes binutils.
1910 AC_MSG_RESULT(newly built nm)
1913 AC_MSG_RESULT($gcc_cv_nm)
1917 ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm
1918 AC_SUBST(ORIGINAL_NM_FOR_TARGET)
1919 case "$ORIGINAL_NM_FOR_TARGET" in
1920 ./nm | ./nm$build_exeext) ;;
1921 *) AC_CONFIG_FILES(nm:exec-tool.in, [chmod +x nm]) ;;
1925 # Figure out what objdump we will be using.
1926 AS_VAR_SET_IF(gcc_cv_objdump,, [
1927 if test -f $gcc_cv_binutils_srcdir/configure.in \
1928 && test -f ../binutils/Makefile \
1929 && test x$build = x$host; then
1930 # Single tree build which includes binutils.
1931 gcc_cv_objdump=../binutils/objdump$build_exeext
1932 elif test -x objdump$build_exeext; then
1933 gcc_cv_objdump=./objdump$build_exeext
1934 elif test -x $OBJDUMP_FOR_TARGET; then
1935 gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
1937 AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
1940 AC_MSG_CHECKING(what objdump to use)
1941 if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then
1942 # Single tree build which includes binutils.
1943 AC_MSG_RESULT(newly built objdump)
1944 elif test x$gcc_cv_objdump = x; then
1945 AC_MSG_RESULT(not found)
1947 AC_MSG_RESULT($gcc_cv_objdump)
1950 # Figure out what assembler alignment features are present.
1951 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1955 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1956 [Define if your assembler supports .balign and .p2align.])])
1958 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1961 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1962 [Define if your assembler supports specifying the maximum number
1963 of bytes to skip when using the GAS .p2align command.])])
1965 gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16,
1968 [AC_DEFINE(HAVE_GAS_LITERAL16, 1,
1969 [Define if your assembler supports .literal16.])])
1971 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1973 [conftest_label1: .word 0
1975 conftest_label2: .word 0
1977 [if test x$gcc_cv_nm != x; then
1978 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1979 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1980 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1982 else gcc_cv_as_subsection_m1=yes
1984 rm -f conftest.nm1 conftest.nm2
1986 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1987 [Define if your assembler supports .subsection and .subsection -1 starts
1988 emitting at the beginning of your section.])])
1990 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1993 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1995 gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,
1997 [ .weakref foobar, barfnot],,
1998 [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])])
2000 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2003 .NSUBSPA $CODE$,COMDAT],,
2004 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2006 # .hidden needs to be supported in both the assembler and the linker,
2007 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2008 # This is irritatingly difficult to feature test for; we have to check the
2009 # date string after the version number. If we've got an in-tree
2010 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2012 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2013 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2018 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2019 [if test $in_tree_ld = yes ; then
2021 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2022 && test $in_tree_ld_is_elf = yes; then
2023 gcc_cv_ld_hidden=yes
2026 gcc_cv_ld_hidden=yes
2027 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2028 if echo "$ld_ver" | grep GNU > /dev/null; then
2030 ld_vers=`echo $ld_ver | sed -n \
2031 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2032 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2033 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2034 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2035 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2036 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2037 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ -].*$,\1,p'`
2038 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2039 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2040 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2041 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2042 if test 0"$ld_date" -lt 20020404; then
2043 if test -n "$ld_date"; then
2044 # If there was date string, but was earlier than 2002-04-04, fail
2046 elif test -z "$ld_vers"; then
2047 # If there was no date string nor ld version number, something is wrong
2050 test -z "$ld_vers_patch" && ld_vers_patch=0
2051 if test "$ld_vers_major" -lt 2; then
2053 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2054 gcc_cv_ld_hidden="no"
2055 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2063 hppa64*-*-hpux* | ia64*-*-hpux*)
2064 gcc_cv_ld_hidden=yes
2072 libgcc_visibility=no
2073 AC_SUBST(libgcc_visibility)
2074 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2075 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2076 libgcc_visibility=yes
2077 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2078 [Define if your assembler and linker support .hidden.])
2081 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2082 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2090 [# GAS versions before 2.11 do not support uleb128,
2091 # despite appearing to.
2092 # ??? There exists an elf-specific test that will crash
2093 # the assembler. Perhaps it's better to figure out whether
2094 # arbitrary sections are supported and try the test.
2095 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2096 if echo "$as_ver" | grep GNU > /dev/null; then
2098 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2099 as_major=`echo $as_ver | sed 's/\..*//'`
2100 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2102 if test $as_major -eq 2 && test $as_minor -lt 11
2104 else gcc_cv_as_leb128=yes
2107 [AC_DEFINE(HAVE_AS_LEB128, 1,
2108 [Define if your assembler supports .sleb128 and .uleb128.])])
2110 # GAS versions up to and including 2.11.0 may mis-optimize
2112 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2120 .section .eh_frame,"aw",@progbits
2122 .4byte .LECIE1-.LSCIE1
2136 .4byte .LEFDE1-.LASFDE1
2138 .4byte .LASFDE1-__FRAME_BEGIN__
2146 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2147 cat > conftest.lit <<EOF
2148 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2149 0010 01000000 12000000 18000000 00000000 ................
2150 0020 08000000 04080000 0044 .........D @&t@
2152 cat > conftest.big <<EOF
2153 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2154 0010 00000001 00000012 00000018 00000000 ................
2155 0020 00000008 04000000 0844 .........D @&t@
2157 # If the assembler didn't choke, and we can objdump,
2158 # and we got the correct data, then succeed.
2159 # The text in the here-document typically retains its unix-style line
2160 # endings, while the output of objdump will use host line endings.
2161 # Therefore, use diff -b for the comparisons.
2162 if test x$gcc_cv_objdump != x \
2163 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2164 | tail -3 > conftest.got \
2165 && { diff -b conftest.lit conftest.got > /dev/null 2>&1 \
2166 || diff -b conftest.big conftest.got > /dev/null 2>&1; }
2168 gcc_cv_as_eh_frame=yes
2169 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2170 gcc_cv_as_eh_frame=buggy
2172 # Uh oh, what do we do now?
2173 gcc_cv_as_eh_frame=no
2176 if test $gcc_cv_as_eh_frame = buggy; then
2177 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2178 [Define if your assembler mis-optimizes .eh_frame data.])
2181 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2182 [elf,2,12,0], [--fatal-warnings],
2183 [.section .rodata.str, "aMS", @progbits, 1])
2184 if test $gcc_cv_as_shf_merge = no; then
2185 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2186 [elf,2,12,0], [--fatal-warnings],
2187 [.section .rodata.str, "aMS", %progbits, 1])
2189 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2190 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2191 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2193 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2194 [elf,2,16,0], [--fatal-warnings],
2195 [.section .text,"axG",@progbits,.foo,comdat])
2196 if test $gcc_cv_as_comdat_group = yes; then
2197 gcc_cv_as_comdat_group_percent=no
2199 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2200 [elf,2,16,0], [--fatal-warnings],
2201 [.section .text,"axG",%progbits,.foo,comdat])
2203 if test $in_tree_ld != yes && test x"$ld_vers" != x; then
2205 if test 0"$ld_date" -lt 20050308; then
2206 if test -n "$ld_date"; then
2207 # If there was date string, but was earlier than 2005-03-08, fail
2209 elif test "$ld_vers_major" -lt 2; then
2211 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2216 # assume linkers other than GNU ld don't support COMDAT group
2219 if test $comdat_group = no; then
2220 gcc_cv_as_comdat_group=no
2221 gcc_cv_as_comdat_group_percent=no
2223 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
2224 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2225 [Define 0/1 if your assembler and linker support COMDAT groups.])
2227 # Thread-local storage - the check is heavily parametrized.
2236 .section ".tdata","awT",@progbits
2239 ldq $27,__tls_get_addr($29) !literal!1
2240 lda $16,foo($29) !tlsgd!1
2241 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2242 ldq $27,__tls_get_addr($29) !literal!2
2243 lda $16,foo($29) !tlsldm!2
2244 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2245 ldq $1,foo($29) !gotdtprel
2246 ldah $2,foo($29) !dtprelhi
2247 lda $3,foo($2) !dtprello
2248 lda $4,foo($29) !dtprel
2249 ldq $1,foo($29) !gottprel
2250 ldah $2,foo($29) !tprelhi
2251 lda $3,foo($2) !tprello
2252 lda $4,foo($29) !tprel'
2255 tls_as_opt=--fatal-warnings
2259 .section ".tdata","awT",@progbits
2271 .section ".tdata","awT",@progbits
2275 addil LT%foo-$tls_gdidx$,gp
2276 ldo RT%foo-$tls_gdidx$(%r1),%arg0
2279 addil LT%foo-$tls_ldidx$,gp
2281 ldo RT%foo-$tls_ldidx$(%r1),%arg0
2282 addil LR%foo-$tls_dtpoff$,%ret0
2283 ldo RR%foo-$tls_dtpoff$(%r1),%t1
2285 addil LT%foo-$tls_ieoff$,gp
2286 ldw RT%foo-$tls_ieoff$(%r1),%t2
2289 addil LR%foo-$tls_leoff$,%t1
2290 ldo RR%foo-$tls_leoff$(%r1),%t2'
2293 tls_as_opt=--fatal-warnings
2297 .section ".tdata","awT",%progbits
2310 .section ".tdata","awT",@progbits
2314 leal foo@TLSGD(,%ebx,1), %eax
2315 leal foo@TLSLDM(%ebx), %eax
2316 leal foo@DTPOFF(%eax), %edx
2317 movl foo@GOTTPOFF(%ebx), %eax
2318 subl foo@GOTTPOFF(%ebx), %eax
2319 addl foo@GOTNTPOFF(%ebx), %eax
2320 movl foo@INDNTPOFF, %eax
2321 movl $foo@TPOFF, %eax
2322 subl $foo@TPOFF, %eax
2323 leal foo@NTPOFF(%ecx), %eax'
2326 tls_as_opt=--fatal-warnings
2330 .section ".tdata","awT",@progbits
2334 leaq foo@TLSGD(%rip), %rdi
2335 leaq foo@TLSLD(%rip), %rdi
2336 leaq foo@DTPOFF(%rax), %rdx
2337 movq foo@GOTTPOFF(%rip), %rax
2338 movq $foo@TPOFF, %rax'
2341 tls_as_opt=--fatal-warnings
2345 .section ".tdata","awT",@progbits
2348 addl r16 = @ltoff(@dtpmod(foo#)), gp
2349 addl r17 = @ltoff(@dtprel(foo#)), gp
2350 addl r18 = @ltoff(@tprel(foo#)), gp
2351 addl r19 = @dtprel(foo#), gp
2352 adds r21 = @dtprel(foo#), r13
2353 movl r23 = @dtprel(foo#)
2354 addl r20 = @tprel(foo#), gp
2355 adds r22 = @tprel(foo#), r13
2356 movl r24 = @tprel(foo#)'
2359 tls_as_opt=--fatal-warnings
2363 .section .tdata,"awT",@progbits
2367 addiu $4, $28, %tlsgd(x)
2368 addiu $4, $28, %tlsldm(x)
2369 lui $4, %dtprel_hi(x)
2370 addiu $4, $4, %dtprel_lo(x)
2371 lw $4, %gottprel(x)($28)
2372 lui $4, %tprel_hi(x)
2373 addiu $4, $4, %tprel_lo(x)'
2376 tls_as_opt='-32 --fatal-warnings'
2380 .section ".tdata","awT",@progbits
2388 addi 3,31,ld0@got@tlsgd
2390 addi 3,31,x1@got@tlsld
2393 addis 9,3,x2@dtprel@ha
2394 addi 9,9,x2@dtprel@l
2395 lwz 9,x3@got@tprel(31)
2398 addis 9,2,x2@tprel@ha
2399 addi 9,9,x2@tprel@l'
2402 tls_as_opt="-a32 --fatal-warnings"
2406 .section ".tdata","awT",@progbits
2414 addi 3,2,ld0@got@tlsgd
2420 addi 3,2,x1@got@tlsld
2426 addis 9,3,x2@dtprel@ha
2427 addi 9,9,x2@dtprel@l
2430 ld 9,x3@got@dtprel(2)
2436 tls_as_opt="-a64 --fatal-warnings"
2440 .section ".tdata","awT",@progbits
2449 l %r1,foo@GOTNTPOFF(%r12)
2450 l %r1,0(%r1):tls_load:foo
2451 bas %r14,0(%r1,%r13):tls_gdcall:foo
2452 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2455 tls_as_opt="-m31 --fatal-warnings"
2459 .section ".tdata","awT",@progbits
2467 lg %r1,foo@GOTNTPOFF(%r12)
2468 larl %r1,foo@INDNTPOFF
2469 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2470 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2473 tls_as_opt="-m64 -Aesame --fatal-warnings"
2475 sh-*-* | sh[34]-*-*)
2477 .section ".tdata","awT",@progbits
2487 tls_as_opt=--fatal-warnings
2491 sparc*-sun-solaris2.[56789]*)
2492 # TLS was introduced in the Solaris 9 4/04 release but
2493 # we do not enable it by default on Solaris 9 either.
2494 if test "x$enable_tls" = xyes ; then
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 gcc_GAS_CHECK_FEATURE([ffreep mnemonic],
2766 gcc_cv_as_ix86_ffreep,,,
2768 [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1,
2769 [Define if your assembler supports the ffreep mnemonic.])])
2771 gcc_GAS_CHECK_FEATURE([sahf mnemonic],
2772 gcc_cv_as_ix86_sahf,,,
2774 [AC_DEFINE(HAVE_AS_IX86_SAHF, 1,
2775 [Define if your assembler supports the sahf mnemonic.])])
2777 gcc_GAS_CHECK_FEATURE([different section symbol subtraction],
2778 gcc_cv_as_ix86_diff_sect_delta,,,
2786 [AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1,
2787 [Define if your assembler supports the subtraction of symbols in different sections.])])
2789 # This one is used unconditionally by i386.[ch]; it is to be defined
2790 # to 1 if the feature is present, 0 otherwise.
2791 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2792 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2798 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2799 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2800 [Define true if the assembler supports '.long foo@GOTOFF'.])
2804 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2805 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2807 addl r15 = @ltoffx(x#), gp
2809 ld8.mov r16 = [[r15]], x#],,
2810 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2811 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2817 *-*-aix*) conftest_s=' .machine "pwr5"
2821 gcc_GAS_CHECK_FEATURE([.machine directive support],
2822 gcc_cv_as_machine_directive,,,
2823 [ .machine ppc7400])
2824 if test x$gcc_cv_as_machine_directive != xyes; then
2825 echo "*** This target requires an assembler supporting \".machine\"" >&2
2826 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2827 test x$build = x$target && exit 1
2831 *) conftest_s=' .machine power4
2836 gcc_GAS_CHECK_FEATURE([mfcr field support],
2837 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2839 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2840 [Define if your assembler supports mfcr field.])])
2843 *-*-aix*) conftest_s=' .machine "pwr5"
2846 *) conftest_s=' .machine power5
2851 gcc_GAS_CHECK_FEATURE([popcntb support],
2852 gcc_cv_as_powerpc_popcntb, [2,17,0],,
2854 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
2855 [Define if your assembler supports popcntb field.])])
2858 *-*-aix*) conftest_s=' .machine "pwr5x"
2861 *) conftest_s=' .machine power5
2866 gcc_GAS_CHECK_FEATURE([fp round support],
2867 gcc_cv_as_powerpc_fprnd, [2,17,0],,
2869 [AC_DEFINE(HAVE_AS_FPRND, 1,
2870 [Define if your assembler supports fprnd.])])
2873 *-*-aix*) conftest_s=' .machine "pwr6"
2876 *) conftest_s=' .machine power6
2881 gcc_GAS_CHECK_FEATURE([move fp gpr support],
2882 gcc_cv_as_powerpc_mfpgpr, [9,99,0],,
2884 [AC_DEFINE(HAVE_AS_MFPGPR, 1,
2885 [Define if your assembler supports mffgpr and mftgpr.])])
2888 *-*-aix*) conftest_s=' .csect .text[[PR]]
2890 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
2894 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
2895 *) conftest_s=' .text
2897 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
2900 gcc_GAS_CHECK_FEATURE([rel16 relocs],
2901 gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
2903 [AC_DEFINE(HAVE_AS_REL16, 1,
2904 [Define if your assembler supports R_PPC_REL16 relocs.])])
2907 *-*-aix*) conftest_s=' .machine "pwr6"
2910 *) conftest_s=' .machine power6
2915 gcc_GAS_CHECK_FEATURE([compare bytes support],
2916 gcc_cv_as_powerpc_cmpb, [9,99,0], -a32,
2918 [AC_DEFINE(HAVE_AS_CMPB, 1,
2919 [Define if your assembler supports cmpb.])])
2922 *-*-aix*) conftest_s=' .machine "pwr6"
2925 *) conftest_s=' .machine power6
2930 gcc_GAS_CHECK_FEATURE([decimal float support],
2931 gcc_cv_as_powerpc_dfp, [9,99,0], -a32,
2933 [AC_DEFINE(HAVE_AS_DFP, 1,
2934 [Define if your assembler supports DFP instructions.])])
2936 gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
2937 gcc_cv_as_powerpc_gnu_attribute, [2,18,0],,
2938 [.gnu_attribute 4,1],,
2939 [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
2940 [Define if your assembler supports .gnu_attribute.])])
2944 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2945 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2946 [ lw $4,%gp_rel(foo)($4)],,
2947 [if test x$target_cpu_default = x
2948 then target_cpu_default=MASK_EXPLICIT_RELOCS
2949 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2951 gcc_GAS_CHECK_FEATURE([-mno-shared support],
2952 gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],,
2953 [AC_DEFINE(HAVE_AS_NO_SHARED, 1,
2954 [Define if the assembler understands -mno-shared.])])
2956 gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
2957 gcc_cv_as_mips_gnu_attribute, [2,18,0],,
2958 [.gnu_attribute 4,1],,
2959 [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
2960 [Define if your assembler supports .gnu_attribute.])])
2962 gcc_GAS_CHECK_FEATURE([.dtprelword support],
2963 gcc_cv_as_mips_dtprelword, [2,18,0],,
2964 [.section .tdata,"awT",@progbits
2968 .dtprelword x+0x8000],,
2969 [AC_DEFINE(HAVE_AS_DTPRELWORD, 1,
2970 [Define if your assembler supports .dtprelword.])])
2974 # Mips and HP-UX need the GNU assembler.
2975 # Linux on IA64 might be able to use the Intel assembler.
2978 mips*-*-* | *-*-hpux* )
2979 if test x$gas_flag = xyes \
2980 || test x"$host" != x"$build" \
2981 || test ! -x "$gcc_cv_as" \
2982 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2985 echo "*** This configuration requires the GNU assembler" >&2
2991 # ??? Not all targets support dwarf2 debug_line, even within a version
2992 # of gas. Moreover, we need to emit a valid instruction to trigger any
2993 # info to the output file. So, as supported targets are added to gas 2.11,
2994 # add some instruction here to (also) show we expect this might work.
2995 # ??? Once 2.11 is released, probably need to add first known working
2996 # version to the per-target configury.
2998 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2999 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
3000 | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-* | score*-*-* | spu-*-*)
3003 ia64*-*-* | s390*-*-*)
3010 if test x"$insn" != x; then
3012 .file 1 \"conftest.s\"
3015 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
3016 gcc_cv_as_dwarf2_debug_line,
3017 [elf,2,11,0],, [$conftest_s],
3018 [if test x$gcc_cv_objdump != x \
3019 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
3020 | grep debug_line > /dev/null 2>&1; then
3021 gcc_cv_as_dwarf2_debug_line=yes
3024 # The .debug_line file table must be in the exact order that
3025 # we specified the files, since these indices are also used
3026 # by DW_AT_decl_file. Approximate this test by testing if
3027 # the assembler bitches if the same index is assigned twice.
3028 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
3029 gcc_cv_as_dwarf2_file_buggy,,,
3033 if test $gcc_cv_as_dwarf2_debug_line = yes \
3034 && test $gcc_cv_as_dwarf2_file_buggy = no; then
3035 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
3036 [Define if your assembler supports dwarf2 .file/.loc directives,
3037 and preserves file table indices exactly as given.])
3040 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
3041 gcc_cv_as_gdwarf2_flag,
3042 [elf,2,11,0], [--gdwarf2], [$insn],,
3043 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
3044 [Define if your assembler supports the --gdwarf2 option.])])
3046 gcc_GAS_CHECK_FEATURE([--gstabs option],
3047 gcc_cv_as_gstabs_flag,
3048 [elf,2,11,0], [--gstabs], [$insn],
3049 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
3050 # and warns about it, but still exits successfully. So check for
3052 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
3054 else gcc_cv_as_gstabs_flag=yes
3056 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
3057 [Define if your assembler supports the --gstabs option.])])
3060 AC_CACHE_CHECK([assembler for tolerance to line number 0],
3061 [gcc_cv_as_line_zero],
3062 [gcc_cv_as_line_zero=no
3063 if test $in_tree_gas = yes; then
3064 gcc_GAS_VERSION_GTE_IFELSE(2, 16, 91, [gcc_cv_as_line_zero=yes])
3065 elif test "x$gcc_cv_as" != x; then
3066 { echo '# 1 "test.s" 1'; echo '# 0 "" 2'; } > conftest.s
3067 if AC_TRY_COMMAND([$gcc_cv_as -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD 2>conftest.out]) &&
3068 test "x`cat conftest.out`" = x
3070 gcc_cv_as_line_zero=yes
3072 echo "configure: failed program was" >&AS_MESSAGE_LOG_FD
3073 cat conftest.s >&AS_MESSAGE_LOG_FD
3074 echo "configure: error output was" >&AS_MESSAGE_LOG_FD
3075 cat conftest.out >&AS_MESSAGE_LOG_FD
3077 rm -f conftest.o conftest.s conftest.out
3079 if test "x$gcc_cv_as_line_zero" = xyes; then
3080 AC_DEFINE([HAVE_AS_LINE_ZERO], 1,
3081 [Define if the assembler won't complain about a line such as # 0 "" 2.])
3084 AC_MSG_CHECKING(linker read-only and read-write section mixing)
3085 gcc_cv_ld_ro_rw_mix=unknown
3086 if test $in_tree_ld = yes ; then
3087 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
3088 && test $in_tree_ld_is_elf = yes; then
3089 gcc_cv_ld_ro_rw_mix=read-write
3091 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
3092 echo '.section myfoosect, "a"' > conftest1.s
3093 echo '.section myfoosect, "aw"' > conftest2.s
3094 echo '.byte 1' >> conftest2.s
3095 echo '.section myfoosect, "a"' > conftest3.s
3096 echo '.byte 0' >> conftest3.s
3097 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
3098 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
3099 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
3100 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
3101 conftest2.o conftest3.o > /dev/null 2>&1; then
3102 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
3103 | sed -e '/myfoosect/!d' -e N`
3104 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
3105 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
3106 gcc_cv_ld_ro_rw_mix=read-only
3108 gcc_cv_ld_ro_rw_mix=read-write
3113 rm -f conftest.* conftest[123].*
3116 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
3117 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
3118 [Define if your linker links a mix of read-only
3119 and read-write sections into a read-write section.])
3121 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
3123 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
3124 gcc_cv_ld_eh_frame_hdr=no
3125 if test $in_tree_ld = yes ; then
3126 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
3127 && test $in_tree_ld_is_elf = yes; then
3128 gcc_cv_ld_eh_frame_hdr=yes
3130 elif test x$gcc_cv_ld != x; then
3131 # Check if linker supports --eh-frame-hdr option
3132 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
3133 gcc_cv_ld_eh_frame_hdr=yes
3136 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
3137 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
3138 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
3139 [Define if your linker supports --eh-frame-hdr option.])
3141 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
3143 AC_MSG_CHECKING(linker position independent executable support)
3145 if test $in_tree_ld = yes ; then
3146 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
3147 && test $in_tree_ld_is_elf = yes; then
3150 elif test x$gcc_cv_ld != x; then
3151 # Check if linker supports -pie option
3152 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
3156 if test x"$gcc_cv_ld_pie" = xyes; then
3157 AC_DEFINE(HAVE_LD_PIE, 1,
3158 [Define if your linker supports -pie option.])
3160 AC_MSG_RESULT($gcc_cv_ld_pie)
3162 AC_MSG_CHECKING(linker EH-compatible garbage collection of sections)
3163 gcc_cv_ld_eh_gc_sections=no
3164 if test $in_tree_ld = yes ; then
3165 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \
3166 && test $in_tree_ld_is_elf = yes; then
3167 gcc_cv_ld_eh_gc_sections=yes
3169 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
3170 cat > conftest.s <<EOF
3173 .type _start, @function
3176 .size _start, .-_start
3177 .section .text.foo,"ax",@progbits
3178 .type foo, @function
3182 .section .gcc_except_table.foo,"a",@progbits
3185 .section .eh_frame,"a",@progbits
3188 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
3189 if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
3190 | grep "gc-sections option ignored" > /dev/null; then
3191 gcc_cv_ld_eh_gc_sections=no
3192 elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
3193 gcc_cv_ld_eh_gc_sections=yes
3194 # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections.
3195 if test x$gcc_cv_as_comdat_group != xyes; then
3196 gcc_cv_ld_eh_gc_sections=no
3197 cat > conftest.s <<EOF
3200 .type _start, @function
3203 .size _start, .-_start
3204 .section .gnu.linkonce.t.foo,"ax",@progbits
3205 .type foo, @function
3209 .section .gcc_except_table.foo,"a",@progbits
3212 .section .eh_frame,"a",@progbits
3215 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
3216 if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
3217 | grep "gc-sections option ignored" > /dev/null; then
3218 gcc_cv_ld_eh_gc_sections=no
3219 elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
3220 gcc_cv_ld_eh_gc_sections=yes
3226 rm -f conftest.s conftest.o conftest
3230 # ??? This apparently exposes a binutils bug with PC-relative relocations.
3231 gcc_cv_ld_eh_gc_sections=no
3234 if test x$gcc_cv_ld_eh_gc_sections = xyes; then
3235 AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1,
3236 [Define if your linker supports garbage collection of
3237 sections in presence of EH frames.])
3239 AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections)
3245 AC_CACHE_CHECK(linker --as-needed support,
3246 gcc_cv_ld_as_needed,
3247 [gcc_cv_ld_as_needed=no
3248 if test $in_tree_ld = yes ; then
3249 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
3250 && test $in_tree_ld_is_elf = yes; then
3251 gcc_cv_ld_as_needed=yes
3253 elif test x$gcc_cv_ld != x; then
3254 # Check if linker supports --as-needed and --no-as-needed options
3255 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
3256 gcc_cv_ld_as_needed=yes
3260 if test x"$gcc_cv_ld_as_needed" = xyes; then
3261 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
3262 [Define if your linker supports --as-needed and --no-as-needed options.])
3265 case "$target:$tm_file" in
3266 powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
3267 AC_CACHE_CHECK(linker support for omitting dot symbols,
3268 gcc_cv_ld_no_dot_syms,
3269 [gcc_cv_ld_no_dot_syms=no
3270 if test $in_tree_ld = yes ; then
3271 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
3272 gcc_cv_ld_no_dot_syms=yes
3274 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
3275 cat > conftest1.s <<EOF
3279 cat > conftest2.s <<EOF
3280 .section ".opd","aw"
3285 .quad .LEfoo,.TOC.@tocbase,0
3291 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
3292 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
3293 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
3294 gcc_cv_ld_no_dot_syms=yes
3296 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3299 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3300 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3301 [Define if your PowerPC64 linker only needs function descriptor syms.])
3306 AC_CACHE_CHECK(linker --sysroot support,
3308 [gcc_cv_ld_sysroot=no
3309 if test $in_tree_ld = yes ; then
3310 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
3311 gcc_cv_ld_sysroot=yes
3313 elif test x$gcc_cv_ld != x; then
3314 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3315 gcc_cv_ld_sysroot=yes
3318 if test x"$gcc_cv_ld_sysroot" = xyes; then
3319 AC_DEFINE(HAVE_LD_SYSROOT, 1,
3320 [Define if your linker supports --sysroot.])
3323 if test x$with_sysroot = x && test x$host = x$target \
3324 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \
3325 && test "$prefix" != "NONE"; then
3326 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3327 [Define to PREFIX/include if cpp should also search that directory.])
3330 # Test for stack protector support in target C library.
3331 AC_CACHE_CHECK(__stack_chk_fail in target C library,
3332 gcc_cv_libc_provides_ssp,
3333 [gcc_cv_libc_provides_ssp=no
3336 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3337 if test "x$with_sysroot" = x; then
3338 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3339 elif test "x$with_build_sysroot" != "x"; then
3340 glibc_header_dir="${with_build_sysroot}/usr/include"
3341 elif test "x$with_sysroot" = xyes; then
3342 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3344 glibc_header_dir="${with_sysroot}/usr/include"
3347 glibc_header_dir=/usr/include
3349 # glibc 2.4 and later provides __stack_chk_fail and
3350 # either __stack_chk_guard, or TLS access to stack guard canary.
3351 if test -f $glibc_header_dir/features.h \
3352 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
3353 $glibc_header_dir/features.h > /dev/null; then
3354 if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
3355 $glibc_header_dir/features.h > /dev/null; then
3356 gcc_cv_libc_provides_ssp=yes
3357 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
3358 $glibc_header_dir/features.h > /dev/null \
3359 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
3360 $glibc_header_dir/features.h > /dev/null; then
3361 gcc_cv_libc_provides_ssp=yes
3366 AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes],
3367 [echo "no __stack_chk_fail on this target"])
3369 *) gcc_cv_libc_provides_ssp=no ;;
3372 if test x$gcc_cv_libc_provides_ssp = xyes; then
3373 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
3374 [Define if your target C library provides stack protector support])
3377 # Check if TFmode long double should be used by default or not.
3378 # Some glibc targets used DFmode long double, but with glibc 2.4
3379 # and later they can use TFmode.
3381 powerpc*-*-linux* | \
3386 AC_ARG_WITH(long-double-128,
3387 [ --with-long-double-128 Use 128-bit long double by default.],
3388 gcc_cv_target_ldbl128="$with_long_double_128",
3389 [gcc_cv_target_ldbl128=no
3390 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3391 if test "x$with_sysroot" = x; then
3392 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3393 elif test "x$with_build_sysroot" != "x"; then
3394 glibc_header_dir="${with_build_sysroot}/usr/include"
3395 elif test "x$with_sysroot" = xyes; then
3396 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3398 glibc_header_dir="${with_sysroot}/usr/include"
3401 glibc_header_dir=/usr/include
3404 grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \
3405 $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \
3406 && gcc_cv_target_ldbl128=yes
3411 if test x$gcc_cv_target_ldbl128 = xyes; then
3412 AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1,
3413 [Define if TFmode long double should be the default])
3416 # Find out what GC implementation we want, or may, use.
3418 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3426 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3429 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3434 echo "Using $GGC for garbage collection."
3436 # Use the system's zlib library.
3438 zlibinc="-I\$(srcdir)/../zlib"
3439 AC_ARG_WITH(system-zlib,
3440 [ --with-system-zlib use installed libz],
3447 dnl Very limited version of automake's enable-maintainer-mode
3449 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3450 dnl maintainer-mode is disabled by default
3451 AC_ARG_ENABLE(maintainer-mode,
3452 [ --enable-maintainer-mode
3453 enable make rules and dependencies not useful
3454 (and sometimes confusing) to the casual installer],
3455 maintainer_mode=$enableval,
3458 AC_MSG_RESULT($maintainer_mode)
3460 if test "$maintainer_mode" = "yes"; then
3471 # Make empty files to contain the specs and options for each language.
3472 # Then add #include lines to for a compiler that has specs and/or options.
3478 # These (without "all_") are set in each config-lang.in.
3479 # `language' must be a single word so is spelled singularly.
3482 all_outputs='Makefile gccbug libada-mk'
3483 # List of language makefile fragments.
3485 # List of language subdirectory makefiles. Deprecated.
3487 # Additional files for gengtype
3488 all_gtfiles="$target_gtfiles"
3490 # These are the languages that are set in --enable-languages,
3491 # and are available in the GCC tree.
3492 all_selected_languages=
3494 # Add the language fragments.
3495 # Languages are added via two mechanisms. Some information must be
3496 # recorded in makefile variables, these are defined in config-lang.in.
3497 # We accumulate them and plug them into the main Makefile.
3498 # The other mechanism is a set of hooks for each of the main targets
3499 # like `clean', `install', etc.
3501 language_hooks="Make-hooks"
3503 for lang in ${srcdir}/*/config-lang.in
3506 test "$lang" = "${srcdir}/*/config-lang.in" && continue
3508 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
3509 if test "x$lang_alias" = x
3511 echo "$lang doesn't set \$language." 1>&2
3514 subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
3515 subdirs="$subdirs $subdir"
3516 case ",$enable_languages," in
3518 all_selected_languages="$all_selected_languages $lang_alias"
3519 if test -f $srcdir/$subdir/lang-specs.h; then
3520 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3532 . ${srcdir}/$subdir/config-lang.in
3533 if test "x$language" = x
3535 echo "${srcdir}/$subdir/config-lang.in doesn't set \$language." 1>&2
3540 case ",$enable_languages," in
3543 for i in $subdir_requires; do
3544 test -f "${srcdir}/$i/config-lang.in" && continue
3552 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$subdir/Make-lang.in"
3553 if test -f $srcdir/$subdir/lang.opt; then
3554 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3556 if test -f $srcdir/$subdir/$subdir-tree.def; then
3557 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3559 if test -f ${srcdir}/$subdir/Makefile.in
3560 then all_lang_makefiles="$subdir/Makefile"
3562 all_languages="$all_languages $language"
3563 all_compilers="$all_compilers $compilers"
3564 all_outputs="$all_outputs $outputs"
3565 all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles"
3568 # Pick up gtfiles for c
3570 . ${srcdir}/c-config-lang.in
3571 all_gtfiles="$all_gtfiles [[c]] $gtfiles"
3574 for language in $all_selected_languages
3576 check_languages="$check_languages check-$language"
3579 # We link each language in with a set of hooks, reached indirectly via
3580 # lang.${target}. Only do so for selected languages.
3584 target_list="all.cross start.encap rest.encap tags \
3585 install-common install-man install-info install-pdf dvi pdf \
3586 html uninstall info man srcextra srcman srcinfo \
3587 mostlyclean clean distclean maintainer-clean"
3589 for t in $target_list
3592 for lang in $all_selected_languages
3596 echo "lang.$t: $x" >> Make-hooks
3605 echo "dir ." > .gdbinit
3606 echo "dir ${srcdir}" >> .gdbinit
3607 if test x$gdb_needs_out_file_path = xyes
3609 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3611 if test "x$subdirs" != x; then
3614 echo "dir ${srcdir}/$s" >> .gdbinit
3617 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3619 gcc_tooldir='$(libsubdir)/$(libsubdir_to_prefix)$(target_noncanonical)'
3620 AC_SUBST(gcc_tooldir)
3623 # Find a directory in which to install a shared libgcc.
3625 AC_ARG_ENABLE(version-specific-runtime-libs,
3626 [ --enable-version-specific-runtime-libs
3627 specify that runtime libraries should be
3628 installed in a compiler-specific directory])
3630 AC_ARG_WITH(slibdir,
3631 [ --with-slibdir=DIR shared libraries in DIR [[LIBDIR]]],
3632 slibdir="$with_slibdir",
3633 if test "${enable_version_specific_runtime_libs+set}" = set; then
3634 slibdir='$(libsubdir)'
3635 elif test "$host" != "$target"; then
3636 slibdir='$(build_tooldir)/lib'
3642 objdir=`${PWDCMD-pwd}`
3645 AC_ARG_WITH(datarootdir,
3646 [ --with-datarootdir=DIR Use DIR as the data root [[PREFIX/share]]],
3647 datarootdir="\${prefix}/$with_datarootdir",
3648 datarootdir='$(prefix)/share')
3649 AC_SUBST(datarootdir)
3652 [ --with-docdir=DIR Install documentation in DIR [[DATAROOTDIR]]],
3653 docdir="\${prefix}/$with_docdir",
3654 docdir='$(datarootdir)')
3657 AC_ARG_WITH(htmldir,
3658 [ --with-htmldir=DIR html documentation in in DIR [[DOCDIR]]],
3659 htmldir="\${prefix}/$with_htmldir",
3660 htmldir='$(docdir)')
3663 # Substitute configuration variables
3666 AC_SUBST(all_compilers)
3667 AC_SUBST(all_gtfiles)
3668 AC_SUBST(all_lang_makefrags)
3669 AC_SUBST(all_lang_makefiles)
3670 AC_SUBST(all_languages)
3671 AC_SUBST(all_selected_languages)
3672 AC_SUBST(build_exeext)
3673 AC_SUBST(build_install_headers_dir)
3674 AC_SUBST(build_xm_file_list)
3675 AC_SUBST(build_xm_include_list)
3676 AC_SUBST(build_xm_defines)
3677 AC_SUBST(check_languages)
3678 AC_SUBST(cpp_install_dir)
3679 AC_SUBST(xmake_file)
3680 AC_SUBST(tmake_file)
3681 AC_SUBST(extra_gcc_objs)
3682 AC_SUBST(extra_headers_list)
3683 AC_SUBST(extra_objs)
3684 AC_SUBST(extra_parts)
3685 AC_SUBST(extra_passes)
3686 AC_SUBST(extra_programs)
3687 AC_SUBST(float_h_file)
3688 AC_SUBST(gcc_config_arguments)
3689 AC_SUBST(gcc_gxx_include_dir)
3690 AC_SUBST(host_exeext)
3691 AC_SUBST(host_xm_file_list)
3692 AC_SUBST(host_xm_include_list)
3693 AC_SUBST(host_xm_defines)
3694 AC_SUBST(out_host_hook_obj)
3696 AC_SUBST(lang_opt_files)
3697 AC_SUBST(lang_specs_files)
3698 AC_SUBST(lang_tree_files)
3699 AC_SUBST(local_prefix)
3701 AC_SUBST(objc_boehm_gc)
3703 AC_SUBST(out_object_file)
3704 AC_SUBST(thread_file)
3705 AC_SUBST(tm_file_list)
3706 AC_SUBST(tm_include_list)
3707 AC_SUBST(tm_defines)
3708 AC_SUBST(tm_p_file_list)
3709 AC_SUBST(tm_p_include_list)
3710 AC_SUBST(xm_file_list)
3711 AC_SUBST(xm_include_list)
3712 AC_SUBST(xm_defines)
3713 AC_SUBST(c_target_objs)
3714 AC_SUBST(cxx_target_objs)
3715 AC_SUBST(target_cpu_default)
3717 AC_SUBST_FILE(language_hooks)
3720 if test x${build} = x${host} ; then
3721 if test x${host} = x${target} ; then
3722 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3724 echo "Links are now set up to build a cross-compiler" 1>&2
3725 echo " from ${host} to ${target}." 1>&2
3728 if test x${host} = x${target} ; then
3729 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3730 echo " for ${target}." 1>&2
3732 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3733 echo " from ${host} to ${target}." 1>&2
3737 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3738 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3740 # Configure the subdirectories
3741 # AC_CONFIG_SUBDIRS($subdirs)
3743 # Create the Makefile
3744 # and configure language subdirectories
3745 AC_CONFIG_FILES($all_outputs)
3747 AC_CONFIG_COMMANDS([default],
3749 case ${CONFIG_HEADERS} in
3750 *auto-host.h:config.in*)
3753 # Make sure all the subdirs exist.
3754 for d in $subdirs doc build
3756 test -d $d || mkdir $d
3759 [subdirs='$subdirs'])