2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
5 # 2007, 2008, 2009 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 3, 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 COPYING3. If not see
21 #<http://www.gnu.org/licenses/>.
23 # --------------------------------
24 # Initialization and sanity checks
25 # --------------------------------
29 AC_CONFIG_SRCDIR(tree.c)
30 AC_CONFIG_HEADER(auto-host.h:config.in)
32 gcc_version=`cat $srcdir/BASE-VER`
34 # Determine the host, build, and target systems
39 # Determine the noncanonical target name, for directory use.
40 ACX_NONCANONICAL_TARGET
42 # Determine the target- and build-specific subdirectories
45 # Set program_transform_name
48 # Check for bogus environment variables.
49 # Test if LIBRARY_PATH contains the notation for the current directory
50 # since this would lead to problems installing/building glibc.
51 # LIBRARY_PATH contains the current directory if one of the following
53 # - one of the terminals (":" and ";") is the first or last sign
54 # - two terminals occur directly after each other
55 # - the path contains an element with a dot in it
56 AC_MSG_CHECKING(LIBRARY_PATH variable)
58 case ${LIBRARY_PATH} in
59 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
60 library_path_setting="contains current directory"
63 library_path_setting="ok"
67 AC_MSG_RESULT($library_path_setting)
68 if test "$library_path_setting" != "ok"; then
70 *** LIBRARY_PATH shouldn't contain the current directory when
71 *** building gcc. Please change the environment variable
72 *** and run configure again.])
75 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
76 # since this would lead to problems installing/building glibc.
77 # GCC_EXEC_PREFIX contains the current directory if one of the following
79 # - one of the terminals (":" and ";") is the first or last sign
80 # - two terminals occur directly after each other
81 # - the path contains an element with a dot in it
82 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
84 case ${GCC_EXEC_PREFIX} in
85 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
86 gcc_exec_prefix_setting="contains current directory"
89 gcc_exec_prefix_setting="ok"
93 AC_MSG_RESULT($gcc_exec_prefix_setting)
94 if test "$gcc_exec_prefix_setting" != "ok"; then
96 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
97 *** building gcc. Please change the environment variable
98 *** and run configure again.])
105 # Specify the local prefix
107 AC_ARG_WITH(local-prefix,
108 [ --with-local-prefix=DIR specifies directory to put local include],
109 [case "${withval}" in
110 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
112 *) local_prefix=$with_local_prefix ;;
115 # Default local prefix if it is empty
116 if test x$local_prefix = x; then
117 local_prefix=/usr/local
120 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
121 # passed in by the toplevel make and thus we'd get different behavior
122 # depending on where we built the sources.
124 # Specify the g++ header file directory
125 AC_ARG_WITH(gxx-include-dir,
126 [ --with-gxx-include-dir=DIR
127 specifies directory to put g++ header files],
128 [case "${withval}" in
129 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
131 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
134 # This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO.
135 if test x${gcc_gxx_include_dir} = x; then
136 if test x${enable_version_specific_runtime_libs} = xyes; then
137 gcc_gxx_include_dir='${libsubdir}/include/c++'
139 libstdcxx_incdir='include/c++/$(version)'
140 if test x$host != x$target; then
141 libstdcxx_incdir="$target_alias/$libstdcxx_incdir"
143 gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir"
147 AC_ARG_WITH(cpp_install_dir,
148 [ --with-cpp-install-dir=DIR
149 install the user visible C preprocessor in DIR
150 (relative to PREFIX) as well as PREFIX/bin],
151 [if test x$withval = xyes; then
152 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
153 elif test x$withval != xno; then
154 cpp_install_dir=$withval
157 # We would like to our source tree to be readonly. However when releases or
158 # pre-releases are generated, the flex/bison generated files as well as the
159 # various formats of manuals need to be included along with the rest of the
160 # sources. Therefore we have --enable-generated-files-in-srcdir to do
163 AC_MSG_CHECKING([whether to place generated files in the source directory])
164 dnl generated-files-in-srcdir is disabled by default
165 AC_ARG_ENABLE(generated-files-in-srcdir,
166 [ --enable-generated-files-in-srcdir
167 put copies of generated files in source dir
168 intended for creating source tarballs for users
169 without texinfo bison or flex.],
170 generated_files_in_srcdir=$enableval,
171 generated_files_in_srcdir=no)
173 AC_MSG_RESULT($generated_files_in_srcdir)
175 if test "$generated_files_in_srcdir" = "yes"; then
182 # -------------------
183 # Find default linker
184 # -------------------
188 [ --with-gnu-ld arrange to work with GNU ld.],
189 gnu_ld_flag="$with_gnu_ld",
192 # With pre-defined ld
194 [ --with-ld arrange to use the specified ld (full pathname)],
195 DEFAULT_LINKER="$with_ld")
196 if test x"${DEFAULT_LINKER+set}" = x"set"; then
197 if test ! -x "$DEFAULT_LINKER"; then
198 AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
199 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
202 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
203 [Define to enable the use of a default linker.])
206 gnu_ld=`if test x"$gnu_ld_flag" = x"yes"; then echo 1; else echo 0; fi`
207 AC_DEFINE_UNQUOTED(HAVE_GNU_LD, $gnu_ld, [Define if using GNU ld.])
209 AC_MSG_CHECKING([whether a default linker was specified])
210 if test x"${DEFAULT_LINKER+set}" = x"set"; then
211 if test x"$gnu_ld_flag" = x"no"; then
212 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
214 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
220 # With demangler in GNU ld
221 AC_ARG_WITH(demangler-in-ld,
222 [ --with-demangler-in-ld try to use demangler in GNU ld.],
223 demangler_in_ld="$with_demangler_in_ld",
226 # ----------------------
227 # Find default assembler
228 # ----------------------
232 [ --with-gnu-as arrange to work with GNU as],
233 gas_flag="$with_gnu_as",
237 [ --with-as arrange to use the specified as (full pathname)],
238 DEFAULT_ASSEMBLER="$with_as")
239 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
240 if test ! -x "$DEFAULT_ASSEMBLER"; then
241 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
242 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
245 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
246 [Define to enable the use of a default assembler.])
249 gnu_as=`if test x"$gas_flag" = x"yes"; then echo 1; else echo 0; fi`
250 AC_DEFINE_UNQUOTED(HAVE_GNU_AS, $gnu_as, [Define if using GNU as.])
252 AC_MSG_CHECKING([whether a default assembler was specified])
253 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
254 if test x"$gas_flag" = x"no"; then
255 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
257 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
267 # If a non-executable a.out is present (e.g. created by GNU as above even if
268 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
269 # file, even when creating an executable, so an execution test fails.
270 # Remove possible default executable files to avoid this.
272 # FIXME: This really belongs into AC_PROG_CC and can be removed once
273 # Autoconf includes it.
274 rm -f a.out a.exe b.out
276 # Find the native compiler
280 ACX_PROG_GNAT([-I"$srcdir"/ada])
282 # autoconf is lame and doesn't give us any substitution variable for this.
283 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
284 NO_MINUS_C_MINUS_O=yes
286 OUTPUT_OPTION='-o $@'
288 AC_SUBST(NO_MINUS_C_MINUS_O)
289 AC_SUBST(OUTPUT_OPTION)
291 # Remove the -O2: for historical reasons, unless bootstrapping we prefer
292 # optimizations to be activated explicitly by the toplevel.
295 *) CFLAGS=`echo $CFLAGS | sed "s/-O[[s0-9]]* *//" ` ;;
299 # -------------------------
300 # Check C compiler features
301 # -------------------------
303 AC_USE_SYSTEM_EXTENSIONS
307 # sizeof(char) is 1 by definition.
308 AC_CHECK_SIZEOF(void *)
309 AC_CHECK_SIZEOF(short)
311 AC_CHECK_SIZEOF(long)
312 AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
313 AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)])
315 # ---------------------
316 # Warnings and checking
317 # ---------------------
319 # Check $CC warning features (if it's GCC).
320 # We want to use -pedantic, but we don't want warnings about
324 # So, we only use -pedantic if we can disable those warnings.
326 ACX_PROG_CC_WARNING_OPTS(
327 m4_quote(m4_do([-W -Wall -Wwrite-strings -Wcast-qual])), [loose_warn])
328 ACX_PROG_CC_WARNING_OPTS(
329 m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])),
331 ACX_PROG_CC_WARNING_OPTS(
332 m4_quote(m4_do([-Wmissing-format-attribute])), [strict_warn])
333 ACX_PROG_CC_WARNING_OPTS(
334 m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn])
335 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC(
336 m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ],
337 [-Wno-overlength-strings])), [strict_warn])
338 ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual], [strict_warn])
340 # The above macros do nothing if the compiler is not GCC. However, the
341 # Makefile has more goo to add other flags, so these variables are used
342 # to enable warnings only for GCC.
345 if test "x$GCC" = "xyes"; then
346 warn_cflags='$(GCC_WARN_CFLAGS)'
347 warn_cxxflags='$(GCC_WARN_CXXFLAGS)'
349 AC_SUBST(warn_cflags)
350 AC_SUBST(warn_cxxflags)
352 # Enable expensive internal checks
354 if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
358 AC_ARG_ENABLE(checking,
359 [ --enable-checking[=LIST]
360 enable expensive run-time checks. With LIST,
361 enable only specific categories of checks.
362 Categories are: yes,no,all,none,release.
363 Flags are: assert,df,fold,gc,gcac,gimple,misc,
364 rtlflag,rtl,runtime,tree,valgrind,types.],
365 [ac_checking_flags="${enableval}"],[
366 # Determine the default checks.
367 if test x$is_release = x ; then
368 ac_checking_flags=yes
370 ac_checking_flags=release
372 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
373 for check in release $ac_checking_flags
376 # these set all the flags to specific states
377 yes) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking= ;
378 ac_fold_checking= ; ac_gc_checking=1 ;
379 ac_gc_always_collect= ; ac_gimple_checking=1 ; ac_rtl_checking= ;
380 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
381 ac_tree_checking=1 ; ac_valgrind_checking= ;
382 ac_types_checking=1 ;;
383 no|none) ac_assert_checking= ; ac_checking= ; ac_df_checking= ;
384 ac_fold_checking= ; ac_gc_checking= ;
385 ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ;
386 ac_rtlflag_checking= ; ac_runtime_checking= ;
387 ac_tree_checking= ; ac_valgrind_checking= ;
388 ac_types_checking= ;;
389 all) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ;
390 ac_fold_checking=1 ; ac_gc_checking=1 ;
391 ac_gc_always_collect=1 ; ac_gimple_checking=1 ; ac_rtl_checking=1 ;
392 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
393 ac_tree_checking=1 ; ac_valgrind_checking= ;
394 ac_types_checking=1 ;;
395 release) ac_assert_checking=1 ; ac_checking= ; ac_df_checking= ;
396 ac_fold_checking= ; ac_gc_checking= ;
397 ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ;
398 ac_rtlflag_checking= ; ac_runtime_checking=1 ;
399 ac_tree_checking= ; ac_valgrind_checking= ;
400 ac_types_checking= ;;
401 # these enable particular checks
402 assert) ac_assert_checking=1 ;;
403 df) ac_df_checking=1 ;;
404 fold) ac_fold_checking=1 ;;
405 gc) ac_gc_checking=1 ;;
406 gcac) ac_gc_always_collect=1 ;;
407 gimple) ac_gimple_checking=1 ;;
408 misc) ac_checking=1 ;;
409 rtl) ac_rtl_checking=1 ;;
410 rtlflag) ac_rtlflag_checking=1 ;;
411 runtime) ac_runtime_checking=1 ;;
412 tree) ac_tree_checking=1 ;;
413 types) ac_types_checking=1 ;;
414 valgrind) ac_valgrind_checking=1 ;;
415 *) AC_MSG_ERROR(unknown check category $check) ;;
421 if test x$ac_checking != x ; then
422 AC_DEFINE(ENABLE_CHECKING, 1,
423 [Define if you want more run-time sanity checks. This one gets a grab
424 bag of miscellaneous but relatively cheap checks.])
425 nocommon_flag=-fno-common
427 AC_SUBST(nocommon_flag)
428 if test x$ac_df_checking != x ; then
429 AC_DEFINE(ENABLE_DF_CHECKING, 1,
430 [Define if you want more run-time sanity checks for dataflow.])
432 if test x$ac_assert_checking != x ; then
433 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
434 [Define if you want assertions enabled. This is a cheap check.])
436 if test x$ac_gimple_checking != x ; then
437 AC_DEFINE(ENABLE_GIMPLE_CHECKING, 1,
438 [Define if you want operations on GIMPLE (the basic data structure of
439 the high-level optimizers) to be checked for dynamic type safety at
440 runtime. This is moderately expensive.])
442 GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING)
443 if test x$ac_runtime_checking != x ; then
444 AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
445 [Define if you want runtime assertions enabled. This is a cheap check.])
447 if test x$ac_tree_checking != x ; then
448 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
449 [Define if you want all operations on trees (the basic data
450 structure of the front ends) to be checked for dynamic type safety
451 at runtime. This is moderately expensive. The tree browser debugging
452 routines will also be enabled by this option.
454 TREEBROWSER=tree-browser.o
456 if test x$ac_types_checking != x ; then
457 AC_DEFINE(ENABLE_TYPES_CHECKING, 1,
458 [Define if you want all gimple types to be verified after gimplifiation.
462 AC_SUBST(TREEBROWSER)
463 if test x$ac_rtl_checking != x ; then
464 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
465 [Define if you want all operations on RTL (the basic data structure
466 of the optimizer and back end) to be checked for dynamic type safety
467 at runtime. This is quite expensive.])
469 if test x$ac_rtlflag_checking != x ; then
470 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
471 [Define if you want RTL flag accesses to be checked against the RTL
472 codes that are supported for each access macro. This is relatively
475 if test x$ac_gc_checking != x ; then
476 AC_DEFINE(ENABLE_GC_CHECKING, 1,
477 [Define if you want the garbage collector to do object poisoning and
478 other memory allocation checks. This is quite expensive.])
480 if test x$ac_gc_always_collect != x ; then
481 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
482 [Define if you want the garbage collector to operate in maximally
483 paranoid mode, validating the entire heap and collecting garbage at
484 every opportunity. This is extremely expensive.])
486 if test x$ac_fold_checking != x ; then
487 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
488 [Define if you want fold checked that it never destructs its argument.
489 This is quite expensive.])
491 valgrind_path_defines=
494 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
495 dnl # an if statement. This was the source of very frustrating bugs
496 dnl # in converting to autoconf 2.5x!
497 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
499 if test x$ac_valgrind_checking != x ; then
500 # It is certainly possible that there's valgrind but no valgrind.h.
501 # GCC relies on making annotations so we must have both.
502 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
503 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
504 [[#include <valgrind/memcheck.h>
505 #ifndef VALGRIND_DISCARD
506 #error VALGRIND_DISCARD not defined
508 [gcc_cv_header_valgrind_memcheck_h=yes],
509 [gcc_cv_header_valgrind_memcheck_h=no])
510 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
511 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
512 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
513 [[#include <memcheck.h>
514 #ifndef VALGRIND_DISCARD
515 #error VALGRIND_DISCARD not defined
517 [gcc_cv_header_memcheck_h=yes],
518 [gcc_cv_header_memcheck_h=no])
519 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
520 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
521 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
522 if test "x$valgrind_path" = "x" \
523 || (test $have_valgrind_h = no \
524 && test $gcc_cv_header_memcheck_h = no \
525 && test $gcc_cv_header_valgrind_memcheck_h = no); then
526 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
528 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
529 valgrind_command="$valgrind_path -q"
530 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
531 [Define if you want to run subprograms and generated programs
532 through valgrind (a memory checker). This is extremely expensive.])
533 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
534 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
535 [Define if valgrind's valgrind/memcheck.h header is installed.])
537 if test $gcc_cv_header_memcheck_h = yes; then
538 AC_DEFINE(HAVE_MEMCHECK_H, 1,
539 [Define if valgrind's memcheck.h header is installed.])
542 AC_SUBST(valgrind_path_defines)
543 AC_SUBST(valgrind_command)
545 # Enable code coverage collection
546 AC_ARG_ENABLE(coverage,
547 [ --enable-coverage[=LEVEL]
548 enable compiler's code coverage collection.
549 Use to measure compiler performance and locate
550 unused parts of the compiler. With LEVEL, specify
551 optimization. Values are opt, noopt,
553 [case "${enableval}" in
555 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
558 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
561 # a.k.a. --disable-coverage
565 AC_MSG_ERROR(unknown coverage setting $enableval)
569 AC_SUBST(coverage_flags)
571 AC_ARG_ENABLE(gather-detailed-mem-stats,
572 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
573 [enable_gather_detailed_mem_stats=no])
574 if test x$enable_gather_detailed_mem_stats = xyes ; then
575 AC_DEFINE(GATHER_STATISTICS, 1,
576 [Define to enable detailed memory allocation stats gathering.])
579 # -------------------------------
580 # Miscenalleous configure options
581 # -------------------------------
583 # See if we are building gcc with C++.
584 AC_ARG_ENABLE(build-with-cxx,
585 [ --enable-build-with-cxx build with C++ compiler instead of C compiler],
586 ENABLE_BUILD_WITH_CXX=$enableval,
587 ENABLE_BUILD_WITH_CXX=no)
588 AC_SUBST(ENABLE_BUILD_WITH_CXX)
592 [ --with-stabs arrange to use stabs instead of host debug format],
596 # Determine whether or not multilibs are enabled.
597 AC_ARG_ENABLE(multilib,
598 [ --enable-multilib enable library support for multiple ABIs],
599 [], [enable_multilib=yes])
600 AC_SUBST(enable_multilib)
602 # Enable __cxa_atexit for C++.
603 AC_ARG_ENABLE(__cxa_atexit,
604 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
607 # Enable C extension for decimal float if target supports it.
608 AC_ARG_ENABLE(decimal-float,
609 [ --enable-decimal-float={no,yes,bid,dpd}
610 enable decimal float extension to C. Selecting 'bid'
611 or 'dpd' choses which decimal floating point format
614 case $enable_decimal_float in
615 yes | no | bid | dpd) ;;
616 *) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float.
617 Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
622 powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*)
623 enable_decimal_float=yes
626 AC_MSG_WARN(decimal float is not supported for this target, ignored)
627 enable_decimal_float=no
632 dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi`
633 AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp,
634 [Define to 1 to enable decimal float extension to C.])
636 # x86's use BID format instead of DPD
637 case x$enable_decimal_float in
640 i?86*-*-linux* | x86_64*-*-linux*)
641 enable_decimal_float=bid
644 enable_decimal_float=dpd
649 # ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper
650 # dependency on libdecnumber.
651 enable_decimal_float=dpd
654 AC_SUBST(enable_decimal_float)
656 bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi`
657 AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid,
658 [Define to 1 to specify that we are using the BID decimal floating
659 point format instead of DPD])
661 # Enable C extension for fixed-point arithmetic.
662 AC_ARG_ENABLE(fixed-point,
663 [ --enable-fixed-point enable fixed-point arithmetic extension to C],
671 AC_MSG_WARN(fixed-point is not supported on IRIX, ignored)
672 enable_fixed_point=no
675 enable_fixed_point=yes
680 AC_MSG_WARN(fixed-point is not supported for this target, ignored)
681 enable_fixed_point=no
685 AC_SUBST(enable_fixed_point)
687 fixedpoint=`if test $enable_fixed_point = yes; then echo 1; else echo 0; fi`
688 AC_DEFINE_UNQUOTED(ENABLE_FIXED_POINT, $fixedpoint,
689 [Define to 1 to enable fixed-point arithmetic extension to C.])
692 # Pass with no value to take the default
693 # Pass with a value to specify a thread package
694 AC_ARG_ENABLE(threads,
695 [ --enable-threads enable thread usage for target GCC
696 --enable-threads=LIB use LIB thread package for target GCC],,
700 [ --enable-tls enable or disable generation of tls code
701 overriding the assembler check for tls support],
705 *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls.
706 Valid choices are 'yes' and 'no'.]) ;;
710 AC_ARG_ENABLE(objc-gc,
711 [ --enable-objc-gc enable the use of Boehm's garbage collector with
712 the GNU Objective-C runtime],
713 if test x$enable_objc_gc = xno; then
721 [ --with-dwarf2 force the default debug format to be DWARF 2],
722 dwarf2="$with_dwarf2",
725 AC_ARG_ENABLE(shared,
726 [ --disable-shared don't provide a shared libgcc],
728 case $enable_shared in
732 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
733 for pkg in $enableval; do
734 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
741 ], [enable_shared=yes])
742 AC_SUBST(enable_shared)
744 AC_ARG_WITH(build-sysroot,
745 [ --with-build-sysroot=sysroot
746 use sysroot as the system root during the build])
749 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
751 case ${with_sysroot} in
752 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
753 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
756 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
757 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
759 if test "x$prefix" = xNONE; then
760 test_prefix=/usr/local
764 if test "x$exec_prefix" = xNONE; then
765 test_exec_prefix=$test_prefix
767 test_exec_prefix=$exec_prefix
769 case ${TARGET_SYSTEM_ROOT} in
770 "${test_prefix}"|"${test_prefix}/"*|\
771 "${test_exec_prefix}"|"${test_exec_prefix}/"*|\
772 '${prefix}'|'${prefix}/'*|\
773 '${exec_prefix}'|'${exec_prefix}/'*)
774 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
775 TARGET_SYSTEM_ROOT_DEFINE="$t"
780 TARGET_SYSTEM_ROOT_DEFINE=
781 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
783 AC_SUBST(TARGET_SYSTEM_ROOT)
784 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
785 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
787 # Build with intermodule optimisations
788 AC_ARG_ENABLE(intermodule,
789 [ --enable-intermodule build the compiler in one step],
790 [case ${enable_intermodule} in
791 yes) onestep="-onestep";;
797 ACX_PKGVERSION([GCC])
798 ACX_BUGURL([http://gcc.gnu.org/bugs.html])
800 # Sanity check enable_languages in case someone does not run the toplevel
801 # configure # script.
802 AC_ARG_ENABLE(languages,
803 [ --enable-languages=LIST specify which front-ends to build],
804 [case ,${enable_languages}, in
806 # go safe -- we cannot be much sure without the toplevel
808 # analysis of which target libs are present and usable
812 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
817 enable_languages=c,${enable_languages}
820 [enable_languages=c])
822 # Used by documentation targets
823 AC_SUBST(datarootdir)
827 AC_ARG_WITH(multilib-list,
828 [ --with-multilib-list Select multilibs (SH only)],
830 with_multilib_list=default)
832 # -------------------------
833 # Checks for other programs
834 # -------------------------
838 # Find some useful tools
840 # We need awk to create options.c and options.h.
841 # Bail out if it's missing.
843 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
851 # By default, the Darwin ranlib will not treat common symbols as
852 # definitions when building the archive table of contents. Other
853 # ranlibs do that; pass an option to the Darwin ranlib that makes
854 # it behave similarly.
860 AC_SUBST(ranlib_flags)
864 # See if cmp has --ignore-initial.
865 gcc_AC_PROG_CMP_IGNORE_INITIAL
867 # See if we have the mktemp command.
868 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
870 # See if makeinfo has been installed and is modern enough
871 # that we can use it.
872 ACX_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
873 [GNU texinfo.* \([0-9][0-9.]*\)],
874 [4.[7-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*])
875 if test $gcc_cv_prog_makeinfo_modern = no; then
877 *** Makeinfo is missing or too old.
878 *** Info documentation will not be built.])
885 # Is pod2man recent enough to regenerate manpages?
886 AC_MSG_CHECKING([for recent Pod::Man])
887 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
889 GENERATED_MANPAGES=generated-manpages
894 AC_SUBST(GENERATED_MANPAGES)
896 MISSING="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing"
899 dnl Don't use AC_PROG_LEX; we insist on flex.
900 dnl LEXLIB is not useful in gcc.
901 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
904 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
906 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
907 # check for build == host before using them.
910 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
911 && test -d ../binutils ; then
912 NM='$(objdir)/../binutils/nm-new'
914 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
918 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
919 && test -d ../binutils ; then
920 AR='$(objdir)/../binutils/ar'
922 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
926 # --------------------
927 # Checks for C headers
928 # --------------------
930 # Need to reject headers which give warnings, so that the -Werror bootstrap
931 # works later. *sigh* This needs to come before all header checks.
938 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
939 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
940 sys/resource.h sys/param.h sys/times.h sys/stat.h \
941 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
943 # Check for thread headers.
944 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
945 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
947 # These tests can't be done till we know if we have limits.h.
956 # These libraries may be used by collect2.
957 # We may need a special search path to get them linked.
958 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
960 for libs in '' -lld -lmld \
961 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
962 '-L/usr/lib/cmplrs/cc3.11 -lmld'
965 AC_TRY_LINK_FUNC(ldopen,
966 [gcc_cv_collect2_libs="$libs"; break])
969 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
970 case $gcc_cv_collect2_libs in
972 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
974 AC_SUBST(COLLECT2_LIBS)
976 # When building Ada code on Alpha, we need exc_resume which is usually in
977 # -lexc. So test for it.
980 AC_SEARCH_LIBS(exc_resume, exc)
983 AC_SUBST(GNAT_LIBEXC)
985 # Some systems put ldexp and frexp in libm instead of libc; assume
986 # they're both in the same place. jcf-dump needs them.
989 AC_SEARCH_LIBS(ldexp, m)
994 # Use <inttypes.h> only if it exists,
995 # doesn't clash with <sys/types.h>, and declares intmax_t.
996 AC_MSG_CHECKING(for inttypes.h)
997 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
998 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
999 [[#include <sys/types.h>
1000 #include <inttypes.h>]],
1001 [[intmax_t i = -1;]])],
1002 [gcc_cv_header_inttypes_h=yes],
1003 [gcc_cv_header_inttypes_h=no])])
1004 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
1005 if test $gcc_cv_header_inttypes_h = yes; then
1006 AC_DEFINE(HAVE_INTTYPES_H, 1,
1007 [Define if you have a working <inttypes.h> header file.])
1010 dnl Disabled until we have a complete test for buggy enum bitfields.
1011 dnl gcc_AC_C_ENUM_BF_UNSIGNED
1013 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
1014 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
1015 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
1016 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
1017 putchar_unlocked putc_unlocked)
1018 AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
1019 sysconf strsignal getrusage nl_langinfo \
1020 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
1023 if test x$ac_cv_func_mbstowcs = xyes; then
1024 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
1025 [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
1031 [gcc_cv_func_mbstowcs_works=yes],
1032 [gcc_cv_func_mbstowcs_works=no],
1033 [gcc_cv_func_mbstowcs_works=yes])])
1034 if test x$gcc_cv_func_mbstowcs_works = xyes; then
1035 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1036 [Define this macro if mbstowcs does not crash when its
1037 first argument is NULL.])
1041 AC_CHECK_TYPE(ssize_t, int)
1042 AC_CHECK_TYPE(caddr_t, char *)
1044 gcc_AC_FUNC_MMAP_BLACKLIST
1048 # Under VMS, vfork works very differently than on Unix. The standard test
1049 # won't work, and it isn't easily adaptable. It makes more sense to
1051 ac_cv_func_vfork_works=yes
1057 # Until we have in-tree GNU iconv:
1059 AC_SUBST(LIBICONV_DEP)
1065 # We will need to find libiberty.h and ansidecl.h
1066 saved_CFLAGS="$CFLAGS"
1067 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1068 gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
1069 strsignal strstr strverscmp \
1070 errno snprintf vsnprintf vasprintf malloc realloc calloc \
1071 free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1072 #include "ansidecl.h"
1073 #include "system.h"])
1075 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1076 #include "ansidecl.h"
1078 #ifdef HAVE_SYS_RESOURCE_H
1079 #include <sys/resource.h>
1083 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1084 #include "ansidecl.h"
1086 #ifdef HAVE_SYS_RESOURCE_H
1087 #include <sys/resource.h>
1089 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
1090 [Define to `long' if <sys/resource.h> doesn't define.])])
1092 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1093 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1094 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1095 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1096 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1097 #include "ansidecl.h"
1106 gcc_AC_CHECK_DECLS(times, , ,[
1107 #include "ansidecl.h"
1109 #ifdef HAVE_SYS_TIMES_H
1110 #include <sys/times.h>
1114 gcc_AC_CHECK_DECLS(sigaltstack, , ,[
1115 #include "ansidecl.h"
1120 # More time-related stuff.
1121 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1122 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1123 #include "ansidecl.h"
1125 #ifdef HAVE_SYS_TIMES_H
1126 #include <sys/times.h>
1128 ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
1129 if test $ac_cv_struct_tms = yes; then
1130 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1131 [Define if <sys/times.h> defines struct tms.])
1134 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1135 # revisit after autoconf 2.50.
1136 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1137 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1138 #include "ansidecl.h"
1140 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
1141 if test $gcc_cv_type_clock_t = yes; then
1142 AC_DEFINE(HAVE_CLOCK_T, 1,
1143 [Define if <time.h> defines clock_t.])
1146 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1147 CFLAGS="$saved_CFLAGS"
1149 gcc_AC_INITFINI_ARRAY
1151 # mkdir takes a single argument on some systems.
1152 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1160 # With Setjmp/Longjmp based exception handling.
1161 AC_ARG_ENABLE(sjlj-exceptions,
1162 [ --enable-sjlj-exceptions
1163 arrange to use setjmp/longjmp exception handling],
1166 if test $enableval != yes; then
1167 AC_MSG_WARN([dwarf2 exceptions not supported, sjlj exceptions forced])
1172 force_sjlj_exceptions=yes],
1175 force_sjlj_exceptions=yes
1179 force_sjlj_exceptions=no
1182 if test $force_sjlj_exceptions = yes; then
1183 sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1184 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1185 [Define 0/1 to force the choice for exception handling model.])
1188 # For platforms with the unwind ABI which includes an unwind library,
1189 # libunwind, we can choose to use the system libunwind.
1190 # config.gcc also contains tests of with_system_libunwind.
1191 GCC_CHECK_UNWIND_GETIPINFO
1193 # --------------------------------------------------------
1194 # Build, host, and target specific configuration fragments
1195 # --------------------------------------------------------
1197 # Collect build-machine-specific information.
1198 . ${srcdir}/config.build
1200 # Collect host-machine-specific information.
1201 . ${srcdir}/config.host
1205 # Collect target-machine-specific information.
1206 . ${srcdir}/config.gcc
1208 extra_objs="${host_extra_objs} ${extra_objs}"
1209 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1211 # Default the target-machine variables that were not explicitly set.
1212 if test x"$tm_file" = x
1213 then tm_file=$cpu_type/$cpu_type.h; fi
1215 if test x"$extra_headers" = x
1216 then extra_headers=; fi
1218 if test x$md_file = x
1219 then md_file=$cpu_type/$cpu_type.md; fi
1221 if test x$out_file = x
1222 then out_file=$cpu_type/$cpu_type.c; fi
1224 if test x"$tmake_file" = x
1225 then tmake_file=$cpu_type/t-$cpu_type
1228 if test x"$dwarf2" = xyes
1229 then tm_file="$tm_file tm-dwarf2.h"
1232 # Say what files are being used for the output code and MD file.
1233 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1234 echo "Using \`$srcdir/config/$md_file' as machine description file."
1236 # If any of the xm_file variables contain nonexistent files, warn
1237 # about them and drop them.
1240 for x in $build_xm_file; do
1241 if test -f $srcdir/config/$x
1243 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1249 for x in $host_xm_file; do
1250 if test -f $srcdir/config/$x
1252 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1258 for x in $xm_file; do
1259 if test -f $srcdir/config/$x
1261 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1267 for f in $tm_file; do
1270 if test $count = ax; then
1271 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1273 echo "Using the following target machine macro files:"
1274 for f in $tm_file; do
1275 echo " $srcdir/config/$f"
1279 if test x$need_64bit_hwint = xyes; then
1280 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1281 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1284 if test x$use_long_long_for_widest_fast_int = xyes; then
1285 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1286 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1287 efficiently supported by the host hardware.])
1291 for f in $host_xm_file; do
1294 if test $count = a; then
1296 elif test $count = ax; then
1297 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1299 echo "Using the following host machine macro files:"
1300 for f in $host_xm_file; do
1301 echo " $srcdir/config/$f"
1304 echo "Using ${out_host_hook_obj} for host machine hooks."
1306 if test "$host_xm_file" != "$build_xm_file"; then
1308 for f in $build_xm_file; do
1311 if test $count = a; then
1313 elif test $count = ax; then
1314 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1316 echo "Using the following build machine macro files:"
1317 for f in $build_xm_file; do
1318 echo " $srcdir/config/$f"
1325 AC_CACHE_CHECK([whether mcontext_t fields have underscores],
1326 gcc_cv_mcontext_underscores,
1328 #include <sys/cdefs.h>
1329 #include <sys/signal.h>
1330 #include <ucontext.h>
1331 int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; }
1333 gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes))
1334 if test $gcc_cv_mcontext_underscores = yes; then
1335 AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl
1336 [mcontext_t fields start with __])
1345 # Check if a valid thread package
1346 case ${enable_threads} in
1349 target_thread_file='single'
1353 target_thread_file='single'
1355 aix | dce | gnat | irix | posix | posix95 | rtems | \
1356 single | solaris | vxworks | win32 | mipssde)
1357 target_thread_file=${enable_threads}
1360 echo "${enable_threads} is an unknown thread package" 1>&2
1365 if test x${thread_file} = x; then
1366 # No thread file set by target-specific clauses in config.gcc,
1367 # so use file chosen by default logic above
1368 thread_file=${target_thread_file}
1371 # Make gthr-default.h if we have a thread file.
1373 if test $thread_file != single; then
1374 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h-t
1375 if diff gthr-default.h-t gthr-default.h 2>/dev/null; then
1376 rm -f gthr-default.h-t
1378 mv -f gthr-default.h-t gthr-default.h
1380 gthread_flags=-DHAVE_GTHR_DEFAULT
1382 AC_SUBST(gthread_flags)
1389 if test x$enable___cxa_atexit = xyes || \
1390 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1391 if test x$host = x$target; then
1393 # mingw32 doesn't have __cxa_atexit but uses atexit registration
1394 # keyed to flag_use_cxa_atexit
1399 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1400 [echo "__cxa_atexit can't be enabled on this target"])
1404 # We can't check for __cxa_atexit when building a cross, so assume
1408 if test x$use_cxa_atexit = xyes; then
1409 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2,
1410 [Define if you want to use __cxa_atexit, rather than atexit, to
1411 register C++ destructors for local statics and global objects.
1412 This is essential for fully standards-compliant handling of
1413 destructors, but requires __cxa_atexit in libc.])
1417 # Look for a file containing extra machine modes.
1418 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1419 extra_modes_file='$(srcdir)'/config/${extra_modes}
1420 AC_SUBST(extra_modes_file)
1421 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1422 [Define to the name of a file containing a list of extra machine modes
1423 for this architecture.])
1426 # Convert extra_options into a form suitable for Makefile use.
1428 for f in $extra_options; do
1429 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1431 AC_SUBST(extra_opt_files)
1433 # auto-host.h is the file containing items generated by autoconf and is
1434 # the first file included by config.h.
1435 # If host=build, it is correct to have bconfig include auto-host.h
1436 # as well. If host!=build, we are in error and need to do more
1437 # work to find out the build config parameters.
1438 if test x$host = x$build
1440 build_auto=auto-host.h
1442 # We create a subdir, then run autoconf in the subdir.
1443 # To prevent recursion we set host and build for the new
1444 # invocation of configure to the build for this invocation
1451 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1452 *) realsrcdir=../${srcdir};;
1454 saved_CFLAGS="${CFLAGS}"
1455 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1456 LDFLAGS="${LDFLAGS_FOR_BUILD}" \
1457 ${realsrcdir}/configure \
1458 --enable-languages=${enable_languages-all} \
1459 --target=$target_alias --host=$build_alias --build=$build_alias
1460 CFLAGS="${saved_CFLAGS}"
1462 # We just finished tests for the build machine, so rename
1463 # the file auto-build.h in the gcc directory.
1464 mv auto-host.h ../auto-build.h
1467 build_auto=auto-build.h
1469 AC_SUBST(build_subdir)
1471 tm_file="${tm_file} defaults.h"
1472 tm_p_file="${tm_p_file} tm-preds.h"
1473 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1474 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1475 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1476 # put this back in temporarily.
1477 xm_file="auto-host.h ansidecl.h ${xm_file}"
1484 # Compile in configure arguments.
1485 if test -f configargs.h ; then
1486 # Being re-configured.
1487 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1488 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1490 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1493 # Double all backslashes and backslash all quotes to turn
1494 # gcc_config_arguments into a C string.
1495 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1496 $gcc_config_arguments
1498 gcc_config_arguments_str=`cat conftest.out`
1501 cat > configargs.h <<EOF
1502 /* Generated automatically. */
1503 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1504 static const char thread_model[] = "$thread_file";
1506 static const struct {
1507 const char *name, *value;
1508 } configure_default_options[] = $configure_default_options;
1513 gcc_BASEVER=`cat $srcdir/BASE-VER`
1514 gcc_DEVPHASE=`cat $srcdir/DEV-PHASE`
1515 gcc_DATESTAMP=`cat $srcdir/DATESTAMP`
1516 if test -f $srcdir/REVISION ; then
1517 gcc_REVISION=`cat $srcdir/REVISION`
1521 cat > plugin-version.h <<EOF
1522 #include "configargs.h"
1524 static char basever[] = "$gcc_BASEVER";
1525 static char datestamp[] = "$gcc_DATESTAMP";
1526 static char devphase[] = "$gcc_DEVPHASE";
1527 static char revision[] = "$gcc_REVISION";
1529 /* FIXME plugins: We should make the version information more precise.
1530 One way to do is to add a checksum. */
1532 static struct plugin_gcc_version gcc_version = {basever, datestamp,
1534 configuration_arguments};
1538 # Internationalization
1539 ZW_GNU_GETTEXT_SISTER_DIR
1541 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1542 # -liconv on the link line twice.
1543 case "$LIBINTL" in *$LIBICONV*)
1547 AC_ARG_ENABLE(secureplt,
1548 [ --enable-secureplt enable -msecure-plt by default for PowerPC],
1552 [ --enable-cld enable -mcld by default for 32bit x86], [],
1555 # Windows32 Registry support for specifying GCC installation paths.
1556 AC_ARG_ENABLE(win32-registry,
1557 [ --disable-win32-registry
1558 disable lookup of installation paths in the
1559 Registry on Windows hosts
1560 --enable-win32-registry enable registry lookup (default)
1561 --enable-win32-registry=KEY
1562 use KEY instead of GCC version as the last portion
1563 of the registry key],,)
1566 win32 | pe | cygwin* | mingw32* | uwin*)
1567 if test "x$enable_win32_registry" != xno; then
1568 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1571 if test "x$enable_win32_registry" != xno; then
1572 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1573 [Define to 1 if installation paths should be looked up in the Windows
1574 Registry. Ignored on non-Windows hosts.])
1576 if test "x$enable_win32_registry" != xyes \
1577 && test "x$enable_win32_registry" != x; then
1578 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1579 [Define to be the last component of the Windows registry key under which
1580 to look for installation paths. The full key used will be
1581 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1582 The default is the GCC version number.])
1588 # Get an absolute path to the GCC top-level source directory
1589 holddir=`${PWDCMD-pwd}`
1591 topdir=`${PWDCMD-pwd}`
1594 # Conditionalize the makefile for this host machine.
1596 for f in ${host_xmake_file}
1598 if test -f ${srcdir}/config/$f
1600 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1604 # Conditionalize the makefile for this target machine.
1606 for f in ${tmake_file}
1608 if test -f ${srcdir}/config/$f
1610 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1613 tmake_file="${tmake_file_}"
1615 out_object_file=`basename $out_file .c`.o
1617 tm_file_list="options.h"
1618 tm_include_list="options.h"
1619 for f in $tm_file; do
1622 f=`echo $f | sed 's/^..//'`
1623 tm_file_list="${tm_file_list} $f"
1624 tm_include_list="${tm_include_list} $f"
1627 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1628 tm_include_list="${tm_include_list} $f"
1631 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1632 tm_include_list="${tm_include_list} config/$f"
1639 for f in $tm_p_file; do
1642 tm_p_file_list="${tm_p_file_list} $f"
1643 tm_p_include_list="${tm_p_include_list} $f"
1646 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1647 tm_p_include_list="${tm_p_include_list} config/$f"
1653 for f in $xm_file; do
1656 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1657 xm_include_list="${xm_include_list} $f"
1660 xm_file_list="${xm_file_list} $f"
1661 xm_include_list="${xm_include_list} $f"
1664 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1665 xm_include_list="${xm_include_list} config/$f"
1671 host_xm_include_list=
1672 for f in $host_xm_file; do
1675 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1676 host_xm_include_list="${host_xm_include_list} $f"
1679 host_xm_file_list="${host_xm_file_list} $f"
1680 host_xm_include_list="${host_xm_include_list} $f"
1683 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1684 host_xm_include_list="${host_xm_include_list} config/$f"
1690 for f in $build_xm_file; do
1693 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1694 build_xm_include_list="${build_xm_include_list} $f"
1696 auto-build.h | auto-host.h )
1697 build_xm_file_list="${build_xm_file_list} $f"
1698 build_xm_include_list="${build_xm_include_list} $f"
1701 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1702 build_xm_include_list="${build_xm_include_list} config/$f"
1707 # Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a
1708 # cross-compiler which does not use the native headers and libraries.
1709 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1710 CROSS= AC_SUBST(CROSS)
1711 ALL=all.internal AC_SUBST(ALL)
1712 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1714 if test "x$with_build_sysroot" != x; then
1715 build_system_header_dir=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
1717 # This value is used, even on a native system, because
1718 # CROSS_SYSTEM_HEADER_DIR is just
1719 # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
1720 build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
1723 if test x$host != x$target
1725 CROSS="-DCROSS_DIRECTORY_STRUCTURE"
1727 SYSTEM_HEADER_DIR=$build_system_header_dir
1728 case "$host","$target" in
1729 # Darwin crosses can use the host system's libraries and headers,
1730 # because of the fat library support. Of course, it must be the
1731 # same version of Darwin on both sides. Allow the user to
1732 # just say --target=foo-darwin without a version number to mean
1733 # "the version on this system".
1734 *-*-darwin*,*-*-darwin*)
1735 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1736 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1737 if test $hostos = $targetos -o $targetos = darwin ; then
1739 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1744 i?86-*-*,x86_64-*-* \
1745 | powerpc*-*-*,powerpc64*-*-*)
1746 CROSS="$CROSS -DNATIVE_CROSS" ;;
1748 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1749 SYSTEM_HEADER_DIR=$build_system_header_dir
1752 # If this is a cross-compiler that does not
1753 # have its own set of headers then define
1756 # If this is using newlib, without having the headers available now,
1757 # then define inhibit_libc in LIBGCC2_CFLAGS.
1758 # This prevents libgcc2 from containing any code which requires libc
1760 : ${inhibit_libc=false}
1761 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1762 test x$with_newlib = xyes ; } &&
1763 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1766 AC_SUBST(inhibit_libc)
1768 # When building gcc with a cross-compiler, we need to adjust things so
1769 # that the generator programs are still built with the native compiler.
1770 # Also, we cannot run fixincludes.
1772 # These are the normal (build=host) settings:
1773 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1774 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1775 BUILD_LDFLAGS='$(LDFLAGS)' AC_SUBST(BUILD_LDFLAGS)
1776 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1778 # And these apply if build != host, or we are generating coverage data
1779 if test x$build != x$host || test "x$coverage_flags" != x
1781 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1782 BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)'
1785 # Expand extra_headers to include complete path.
1786 # This substitutes for lots of t-* files.
1788 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1789 for file in ${extra_headers} ; do
1790 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1793 # If use_gcc_tgmath is set, append ginclude/tgmath.h.
1794 if test x"$use_gcc_tgmath" = xyes
1795 then extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/tgmath.h"
1798 # Define collect2 in Makefile.
1799 case $host_can_use_collect2 in
1801 *) collect2='collect2$(exeext)' ;;
1803 AC_SUBST([collect2])
1805 # Add a definition of USE_COLLECT2 if system wants one.
1806 case $use_collect2 in
1807 no) use_collect2= ;;
1810 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1811 xm_defines="${xm_defines} USE_COLLECT2"
1812 case $host_can_use_collect2 in
1814 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1820 # ---------------------------
1821 # Assembler & linker features
1822 # ---------------------------
1824 # During stage 2, ld is actually gcc/collect-ld, which is a small script to
1825 # discern between when to use prev-ld/ld-new and when to use ld/ld-new.
1826 # However when ld-new is first executed from the build tree, libtool will
1827 # relink it as .libs/lt-ld-new, so that it can give it an RPATH that refers
1828 # to the build tree. While doing this we need to use the previous-stage
1829 # linker, or we have an infinite loop. The presence of a shell script as
1830 # ld/ld-new, and the fact that the script *uses ld itself*, is what confuses
1831 # the gcc/collect-ld script. So we need to know how libtool works, or
1832 # exec-tool will fail.
1834 m4_defun([_LT_CONFIG_COMMANDS], [])
1837 AC_SUBST(enable_fast_install)
1839 # Identify the assembler which will work hand-in-glove with the newly
1840 # built GCC, so that we can examine its features. This is the assembler
1841 # which will be driven by the driver program.
1843 # If build != host, and we aren't building gas in-tree, we identify a
1844 # build->target assembler and hope that it will have the same features
1845 # as the host->target assembler we'll be using.
1846 gcc_cv_gas_major_version=
1847 gcc_cv_gas_minor_version=
1848 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1850 m4_pattern_allow([AS_FOR_TARGET])dnl
1851 AS_VAR_SET_IF(gcc_cv_as,, [
1852 if test -x "$DEFAULT_ASSEMBLER"; then
1853 gcc_cv_as="$DEFAULT_ASSEMBLER"
1854 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1855 && test -f ../gas/Makefile \
1856 && test x$build = x$host; then
1857 gcc_cv_as=../gas/as-new$build_exeext
1858 elif test -x as$build_exeext; then
1859 # Build using assembler in the current directory.
1860 gcc_cv_as=./as$build_exeext
1861 elif test -x $AS_FOR_TARGET; then
1862 gcc_cv_as="$AS_FOR_TARGET"
1864 AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET)
1867 ORIGINAL_AS_FOR_TARGET=$gcc_cv_as
1868 AC_SUBST(ORIGINAL_AS_FOR_TARGET)
1869 case "$ORIGINAL_AS_FOR_TARGET" in
1870 ./as | ./as$build_exeext) ;;
1871 *) AC_CONFIG_FILES(as:exec-tool.in, [chmod +x as]) ;;
1874 AC_MSG_CHECKING(what assembler to use)
1875 if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then
1876 # Single tree build which includes gas. We want to prefer it
1877 # over whatever linker top-level may have detected, since
1878 # we'll use what we're building after installation anyway.
1879 AC_MSG_RESULT(newly built gas)
1881 _gcc_COMPUTE_GAS_VERSION
1882 in_tree_gas_is_elf=no
1883 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1884 || (grep 'obj_format = multi' ../gas/Makefile \
1885 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1887 in_tree_gas_is_elf=yes
1890 AC_MSG_RESULT($gcc_cv_as)
1894 # Identify the linker which will work hand-in-glove with the newly
1895 # built GCC, so that we can examine its features. This is the linker
1896 # which will be driven by the driver program.
1898 # If build != host, and we aren't building gas in-tree, we identify a
1899 # build->target linker and hope that it will have the same features
1900 # as the host->target linker we'll be using.
1901 gcc_cv_gld_major_version=
1902 gcc_cv_gld_minor_version=
1903 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1904 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1906 AS_VAR_SET_IF(gcc_cv_ld,, [
1907 if test -x "$DEFAULT_LINKER"; then
1908 gcc_cv_ld="$DEFAULT_LINKER"
1909 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1910 && test -f ../ld/Makefile \
1911 && test x$build = x$host; then
1912 gcc_cv_ld=../ld/ld-new$build_exeext
1913 elif test -x collect-ld$build_exeext; then
1914 # Build using linker in the current directory.
1915 gcc_cv_ld=./collect-ld$build_exeext
1916 elif test -x $LD_FOR_TARGET; then
1917 gcc_cv_ld="$LD_FOR_TARGET"
1919 AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
1922 ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
1923 AC_SUBST(ORIGINAL_LD_FOR_TARGET)
1924 case "$ORIGINAL_LD_FOR_TARGET" in
1925 ./collect-ld | ./collect-ld$build_exeext) ;;
1926 *) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;;
1929 AC_MSG_CHECKING(what linker to use)
1930 if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then
1931 # Single tree build which includes ld. We want to prefer it
1932 # over whatever linker top-level may have detected, since
1933 # we'll use what we're building after installation anyway.
1934 AC_MSG_RESULT(newly built ld)
1936 in_tree_ld_is_elf=no
1937 if (grep 'EMUL = .*elf' ../ld/Makefile \
1938 || grep 'EMUL = .*linux' ../ld/Makefile \
1939 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1940 in_tree_ld_is_elf=yes
1942 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
1945 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1946 if test x$gcc_cv_gld_version != x; then
1950 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1951 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1954 AC_MSG_RESULT($gcc_cv_ld)
1958 # Figure out what nm we will be using.
1959 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1960 AS_VAR_SET_IF(gcc_cv_nm,, [
1961 if test -f $gcc_cv_binutils_srcdir/configure.in \
1962 && test -f ../binutils/Makefile \
1963 && test x$build = x$host; then
1964 gcc_cv_nm=../binutils/nm-new$build_exeext
1965 elif test -x nm$build_exeext; then
1966 gcc_cv_nm=./nm$build_exeext
1967 elif test -x $NM_FOR_TARGET; then
1968 gcc_cv_nm="$NM_FOR_TARGET"
1970 AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET)
1973 AC_MSG_CHECKING(what nm to use)
1974 if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then
1975 # Single tree build which includes binutils.
1976 AC_MSG_RESULT(newly built nm)
1979 AC_MSG_RESULT($gcc_cv_nm)
1983 ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm
1984 AC_SUBST(ORIGINAL_NM_FOR_TARGET)
1985 case "$ORIGINAL_NM_FOR_TARGET" in
1986 ./nm | ./nm$build_exeext) ;;
1987 *) AC_CONFIG_FILES(nm:exec-tool.in, [chmod +x nm]) ;;
1991 # Figure out what objdump we will be using.
1992 AS_VAR_SET_IF(gcc_cv_objdump,, [
1993 if test -f $gcc_cv_binutils_srcdir/configure.in \
1994 && test -f ../binutils/Makefile \
1995 && test x$build = x$host; then
1996 # Single tree build which includes binutils.
1997 gcc_cv_objdump=../binutils/objdump$build_exeext
1998 elif test -x objdump$build_exeext; then
1999 gcc_cv_objdump=./objdump$build_exeext
2000 elif test -x $OBJDUMP_FOR_TARGET; then
2001 gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
2003 AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
2006 AC_MSG_CHECKING(what objdump to use)
2007 if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then
2008 # Single tree build which includes binutils.
2009 AC_MSG_RESULT(newly built objdump)
2010 elif test x$gcc_cv_objdump = x; then
2011 AC_MSG_RESULT(not found)
2013 AC_MSG_RESULT($gcc_cv_objdump)
2016 # Figure out what readelf we will be using.
2017 AS_VAR_SET_IF(gcc_cv_readelf,, [
2018 if test -f $gcc_cv_binutils_srcdir/configure.in \
2019 && test -f ../binutils/Makefile \
2020 && test x$build = x$host; then
2021 # Single tree build which includes binutils.
2022 gcc_cv_readelf=../binutils/readelf$build_exeext
2023 elif test -x readelf$build_exeext; then
2024 gcc_cv_readelf=./readelf$build_exeext
2026 AC_PATH_PROG(gcc_cv_readelf, readelf)
2029 AC_MSG_CHECKING(what readelf to use)
2030 if test "$gcc_cv_readelf" = ../binutils/readelf$build_exeext; then
2031 # Single tree build which includes binutils.
2032 AC_MSG_RESULT(newly built readelf)
2033 elif test x$gcc_cv_readelf = x; then
2034 AC_MSG_RESULT(not found)
2036 AC_MSG_RESULT($gcc_cv_readelf)
2039 # Figure out what assembler alignment features are present.
2040 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
2044 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
2045 [Define if your assembler supports .balign and .p2align.])])
2047 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2050 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2051 [Define if your assembler supports specifying the maximum number
2052 of bytes to skip when using the GAS .p2align command.])])
2054 gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16,
2057 [AC_DEFINE(HAVE_GAS_LITERAL16, 1,
2058 [Define if your assembler supports .literal16.])])
2060 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2062 [conftest_label1: .word 0
2064 conftest_label2: .word 0
2066 [if test x$gcc_cv_nm != x; then
2067 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2068 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2069 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2071 else gcc_cv_as_subsection_m1=yes
2073 rm -f conftest.nm1 conftest.nm2
2075 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2076 [Define if your assembler supports .subsection and .subsection -1 starts
2077 emitting at the beginning of your section.])])
2079 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2082 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2084 gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,
2086 [ .weakref foobar, barfnot],,
2087 [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])])
2089 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2092 .NSUBSPA $CODE$,COMDAT],,
2093 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2095 # .hidden needs to be supported in both the assembler and the linker,
2096 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2097 # This is irritatingly difficult to feature test for; we have to check the
2098 # date string after the version number. If we've got an in-tree
2099 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2101 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2102 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2107 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2108 [if test $in_tree_ld = yes ; then
2110 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2111 && test $in_tree_ld_is_elf = yes; then
2112 gcc_cv_ld_hidden=yes
2116 gcc_cv_ld_hidden=yes
2117 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2118 if echo "$ld_ver" | grep GNU > /dev/null; then
2119 ld_vers=`echo $ld_ver | sed -n \
2120 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
2121 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2122 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2123 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2124 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2125 if test 0"$ld_date" -lt 20020404; then
2126 if test -n "$ld_date"; then
2127 # If there was date string, but was earlier than 2002-04-04, fail
2129 elif test -z "$ld_vers"; then
2130 # If there was no date string nor ld version number, something is wrong
2133 test -z "$ld_vers_patch" && ld_vers_patch=0
2134 if test "$ld_vers_major" -lt 2; then
2136 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2137 gcc_cv_ld_hidden="no"
2138 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2145 hppa64*-*-hpux* | ia64*-*-hpux*)
2146 gcc_cv_ld_hidden=yes
2148 *-*-solaris2.9* | *-*-solaris2.1[0-9]*)
2149 gcc_cv_ld_hidden=yes
2158 libgcc_visibility=no
2159 AC_SUBST(libgcc_visibility)
2160 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2161 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2162 libgcc_visibility=yes
2163 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2164 [Define if your assembler and linker support .hidden.])
2167 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2168 gcc_cv_ld_ro_rw_mix=unknown
2169 if test $in_tree_ld = yes ; then
2170 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2171 && test $in_tree_ld_is_elf = yes; then
2172 gcc_cv_ld_ro_rw_mix=read-write
2174 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2175 echo '.section myfoosect, "a"' > conftest1.s
2176 echo '.section myfoosect, "aw"' > conftest2.s
2177 echo '.byte 1' >> conftest2.s
2178 echo '.section myfoosect, "a"' > conftest3.s
2179 echo '.byte 0' >> conftest3.s
2180 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2181 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2182 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2183 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2184 conftest2.o conftest3.o > /dev/null 2>&1; then
2185 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2186 | sed -e '/myfoosect/!d' -e N`
2187 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2188 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2189 gcc_cv_ld_ro_rw_mix=read-only
2191 gcc_cv_ld_ro_rw_mix=read-write
2196 rm -f conftest.* conftest[123].*
2199 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2200 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2201 [Define if your linker links a mix of read-only
2202 and read-write sections into a read-write section.])
2204 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2206 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2207 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2215 [# GAS versions before 2.11 do not support uleb128,
2216 # despite appearing to.
2217 # ??? There exists an elf-specific test that will crash
2218 # the assembler. Perhaps it's better to figure out whether
2219 # arbitrary sections are supported and try the test.
2220 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2221 if echo "$as_ver" | grep GNU > /dev/null; then
2223 as_vers=`echo $as_ver | sed -n \
2224 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
2225 as_major=`expr "$as_vers" : '\([0-9]*\)'`
2226 as_minor=`expr "$as_vers" : '[0-9]*\.\([0-9]*\)'`
2228 if test $as_major -eq 2 && test $as_minor -lt 11
2230 else gcc_cv_as_leb128=yes
2233 [AC_DEFINE(HAVE_AS_LEB128, 1,
2234 [Define if your assembler supports .sleb128 and .uleb128.])])
2236 # Check if we have assembler support for unwind directives.
2237 gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive,
2244 .cfi_escape 1, 2, 3, 4, 5
2248 # If the linker used on Solaris (like Sun ld) isn't capable of merging
2249 # read-only and read-write sections, we need to make sure that the
2250 # assembler used emits read-write .eh_frame sections.
2251 if test "x$gcc_cv_ld_ro_rw_mix" != xread-write; then
2252 if test "x$gcc_cv_objdump" != x; then
2253 if $gcc_cv_objdump -h conftest.o 2>/dev/null | \
2254 sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then
2255 gcc_cv_as_cfi_directive=no
2257 gcc_cv_as_cfi_directive=yes
2260 # no objdump, err on the side of caution
2261 gcc_cv_as_cfi_directive=no
2264 gcc_cv_as_cfi_directive=yes
2268 gcc_cv_as_cfi_directive=yes
2271 if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_readelf != x; then
2272 gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working,
2276 .cfi_adjust_cfa_offset 64
2278 .cfi_adjust_cfa_offset 128
2282 if $gcc_cv_readelf -wf conftest.o 2>/dev/null \
2283 | grep 'DW_CFA_advance_loc[12]:[ ][ ]*512[ ]' >/dev/null; then
2284 gcc_cv_as_cfi_advance_working=yes
2289 # no readelf, err on the side of caution
2290 gcc_cv_as_cfi_advance_working=no
2292 AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE,
2293 [`if test $gcc_cv_as_cfi_directive = yes \
2294 && test $gcc_cv_as_cfi_advance_working = yes; then echo 1; else echo 0; fi`],
2295 [Define 0/1 if your assembler supports CFI directives.])
2297 gcc_GAS_CHECK_FEATURE([cfi personality directive],
2298 gcc_cv_as_cfi_personality_directive, ,,
2301 .cfi_personality 0, symbol
2303 AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE,
2304 [`if test $gcc_cv_as_cfi_personality_directive = yes;
2305 then echo 1; else echo 0; fi`],
2306 [Define 0/1 if your assembler supports .cfi_personality.])
2308 # GAS versions up to and including 2.11.0 may mis-optimize
2310 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2318 .section .eh_frame,"aw",@progbits
2320 .4byte .LECIE1-.LSCIE1
2334 .4byte .LEFDE1-.LASFDE1
2336 .4byte .LASFDE1-__FRAME_BEGIN__
2344 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2345 cat > conftest.lit <<EOF
2346 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2347 0010 01000000 12000000 18000000 00000000 ................
2348 0020 08000000 04080000 0044 .........D @&t@
2350 cat > conftest.big <<EOF
2351 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2352 0010 00000001 00000012 00000018 00000000 ................
2353 0020 00000008 04000000 0844 .........D @&t@
2355 # If the assembler didn't choke, and we can objdump,
2356 # and we got the correct data, then succeed.
2357 # The text in the here-document typically retains its unix-style line
2358 # endings, while the output of objdump will use host line endings.
2359 # Therefore, use diff -b for the comparisons.
2360 if test x$gcc_cv_objdump != x \
2361 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2362 | tail -3 > conftest.got \
2363 && { diff -b conftest.lit conftest.got > /dev/null 2>&1 \
2364 || diff -b conftest.big conftest.got > /dev/null 2>&1; }
2366 gcc_cv_as_eh_frame=yes
2367 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2368 gcc_cv_as_eh_frame=buggy
2370 # Uh oh, what do we do now?
2371 gcc_cv_as_eh_frame=no
2374 if test $gcc_cv_as_eh_frame = buggy; then
2375 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2376 [Define if your assembler mis-optimizes .eh_frame data.])
2379 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2380 [elf,2,12,0], [--fatal-warnings],
2381 [.section .rodata.str, "aMS", @progbits, 1])
2382 if test $gcc_cv_as_shf_merge = no; then
2383 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2384 [elf,2,12,0], [--fatal-warnings],
2385 [.section .rodata.str, "aMS", %progbits, 1])
2387 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2388 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2389 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2391 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2392 [elf,2,16,0], [--fatal-warnings],
2393 [.section .text,"axG",@progbits,.foo,comdat])
2394 if test $gcc_cv_as_comdat_group = yes; then
2395 gcc_cv_as_comdat_group_percent=no
2397 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2398 [elf,2,16,0], [--fatal-warnings],
2399 [.section .text,"axG",%progbits,.foo,comdat])
2401 if test $in_tree_ld != yes && test x"$ld_vers" != x; then
2403 if test 0"$ld_date" -lt 20050308; then
2404 if test -n "$ld_date"; then
2405 # If there was date string, but was earlier than 2005-03-08, fail
2407 elif test "$ld_vers_major" -lt 2; then
2409 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2414 # assume linkers other than GNU ld don't support COMDAT group
2417 if test $comdat_group = no; then
2418 gcc_cv_as_comdat_group=no
2419 gcc_cv_as_comdat_group_percent=no
2421 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
2422 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2423 [Define 0/1 if your assembler and linker support COMDAT groups.])
2425 gcc_GAS_CHECK_FEATURE([line table discriminator support],
2426 gcc_cv_as_discriminator,
2430 .loc 1 1 0 discriminator 1],,
2431 [AC_DEFINE(HAVE_GAS_DISCRIMINATOR, 1,
2432 [Define if your assembler supports the .loc discriminator sub-directive.])])
2434 # Thread-local storage - the check is heavily parameterized.
2443 .section ".tdata","awT",@progbits
2446 ldq $27,__tls_get_addr($29) !literal!1
2447 lda $16,foo($29) !tlsgd!1
2448 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2449 ldq $27,__tls_get_addr($29) !literal!2
2450 lda $16,foo($29) !tlsldm!2
2451 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2452 ldq $1,foo($29) !gotdtprel
2453 ldah $2,foo($29) !dtprelhi
2454 lda $3,foo($2) !dtprello
2455 lda $4,foo($29) !dtprel
2456 ldq $1,foo($29) !gottprel
2457 ldah $2,foo($29) !tprelhi
2458 lda $3,foo($2) !tprello
2459 lda $4,foo($29) !tprel'
2462 tls_as_opt=--fatal-warnings
2464 cris-*-*|crisv32-*-*)
2466 .section ".tdata","awT",@progbits
2473 tls_as_opt=--fatal-warnings
2477 .section ".tdata","awT",@progbits
2489 .section ".tdata","awT",@progbits
2493 addil LT%foo-$tls_gdidx$,gp
2494 ldo RT%foo-$tls_gdidx$(%r1),%arg0
2497 addil LT%foo-$tls_ldidx$,gp
2499 ldo RT%foo-$tls_ldidx$(%r1),%arg0
2500 addil LR%foo-$tls_dtpoff$,%ret0
2501 ldo RR%foo-$tls_dtpoff$(%r1),%t1
2503 addil LT%foo-$tls_ieoff$,gp
2504 ldw RT%foo-$tls_ieoff$(%r1),%t2
2507 addil LR%foo-$tls_leoff$,%t1
2508 ldo RR%foo-$tls_leoff$(%r1),%t2'
2511 tls_as_opt=--fatal-warnings
2515 .section ".tdata","awT",%progbits
2528 .section ".tdata","awT",@progbits
2532 leal foo@TLSGD(,%ebx,1), %eax
2533 leal foo@TLSLDM(%ebx), %eax
2534 leal foo@DTPOFF(%eax), %edx
2535 movl foo@GOTTPOFF(%ebx), %eax
2536 subl foo@GOTTPOFF(%ebx), %eax
2537 addl foo@GOTNTPOFF(%ebx), %eax
2538 movl foo@INDNTPOFF, %eax
2539 movl $foo@TPOFF, %eax
2540 subl $foo@TPOFF, %eax
2541 leal foo@NTPOFF(%ecx), %eax'
2544 tls_as_opt=--fatal-warnings
2548 .section ".tdata","awT",@progbits
2552 leaq foo@TLSGD(%rip), %rdi
2553 leaq foo@TLSLD(%rip), %rdi
2554 leaq foo@DTPOFF(%rax), %rdx
2555 movq foo@GOTTPOFF(%rip), %rax
2556 movq $foo@TPOFF, %rax'
2559 tls_as_opt=--fatal-warnings
2563 .section ".tdata","awT",@progbits
2566 addl r16 = @ltoff(@dtpmod(foo#)), gp
2567 addl r17 = @ltoff(@dtprel(foo#)), gp
2568 addl r18 = @ltoff(@tprel(foo#)), gp
2569 addl r19 = @dtprel(foo#), gp
2570 adds r21 = @dtprel(foo#), r13
2571 movl r23 = @dtprel(foo#)
2572 addl r20 = @tprel(foo#), gp
2573 adds r22 = @tprel(foo#), r13
2574 movl r24 = @tprel(foo#)'
2577 tls_as_opt=--fatal-warnings
2581 .section .tdata,"awT",@progbits
2585 addiu $4, $28, %tlsgd(x)
2586 addiu $4, $28, %tlsldm(x)
2587 lui $4, %dtprel_hi(x)
2588 addiu $4, $4, %dtprel_lo(x)
2589 lw $4, %gottprel(x)($28)
2590 lui $4, %tprel_hi(x)
2591 addiu $4, $4, %tprel_lo(x)'
2594 tls_as_opt='-32 --fatal-warnings'
2598 .section .tdata,"awT",@progbits
2603 move.l x@TLSGD(%a5),%a0
2604 move.l x@TLSLDM(%a5),%a0
2605 move.l x@TLSLDO(%a5),%a0
2606 move.l x@TLSIE(%a5),%a0
2607 move.l x@TLSLE(%a5),%a0'
2610 tls_as_opt='--fatal-warnings'
2614 .section ".tdata","awT",@progbits
2622 addi 3,31,ld0@got@tlsgd
2624 addi 3,31,x1@got@tlsld
2627 addis 9,3,x2@dtprel@ha
2628 addi 9,9,x2@dtprel@l
2629 lwz 9,x3@got@tprel(31)
2632 addis 9,2,x2@tprel@ha
2633 addi 9,9,x2@tprel@l'
2636 tls_as_opt="-a32 --fatal-warnings"
2640 .section ".tdata","awT",@progbits
2648 addi 3,2,ld0@got@tlsgd
2654 addi 3,2,x1@got@tlsld
2660 addis 9,3,x2@dtprel@ha
2661 addi 9,9,x2@dtprel@l
2664 ld 9,x3@got@dtprel(2)
2670 tls_as_opt="-a64 --fatal-warnings"
2674 .section ".tdata","awT",@progbits
2683 l %r1,foo@GOTNTPOFF(%r12)
2684 l %r1,0(%r1):tls_load:foo
2685 bas %r14,0(%r1,%r13):tls_gdcall:foo
2686 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2689 tls_as_opt="-m31 --fatal-warnings"
2693 .section ".tdata","awT",@progbits
2701 lg %r1,foo@GOTNTPOFF(%r12)
2702 larl %r1,foo@INDNTPOFF
2703 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2704 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2707 tls_as_opt="-m64 -Aesame --fatal-warnings"
2709 sh-*-* | sh[34]-*-*)
2711 .section ".tdata","awT",@progbits
2721 tls_as_opt=--fatal-warnings
2725 sparc*-sun-solaris2.[56789]*)
2726 # TLS was introduced in the Solaris 9 4/04 release but
2727 # we do not enable it by default on Solaris 9 either.
2728 if test "x$enable_tls" = xyes ; then
2734 sparc*-sun-solaris2.*)
2741 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2743 .section ".tdata",#alloc,#write,#tls
2746 sethi %tgd_hi22(foo), %o0
2747 add %o0, %tgd_lo10(foo), %o1
2748 add %l7, %o1, %o0, %tgd_add(foo)
2749 call __tls_get_addr, %tgd_call(foo)
2750 sethi %tldm_hi22(foo), %l1
2751 add %l1, %tldm_lo10(foo), %l2
2752 add %l7, %l2, %o0, %tldm_add(foo)
2753 call __tls_get_addr, %tldm_call(foo)
2754 sethi %tldo_hix22(foo), %l3
2755 xor %l3, %tldo_lox10(foo), %l4
2756 add %o0, %l4, %l5, %tldo_add(foo)
2757 sethi %tie_hi22(foo), %o3
2758 add %o3, %tie_lo10(foo), %o3
2759 ld [%l7 + %o3], %o2, %tie_ld(foo)
2760 add %g7, %o2, %o4, %tie_add(foo)
2761 sethi %tle_hix22(foo), %l1
2762 xor %l1, %tle_lox10(foo), %o5
2763 ld [%g7 + %o5], %o1'
2768 .section ".tdata","awT",@progbits
2771 sethi %tgd_hi22(foo), %o0
2772 add %o0, %tgd_lo10(foo), %o1
2773 add %l7, %o1, %o0, %tgd_add(foo)
2774 call __tls_get_addr, %tgd_call(foo)
2775 sethi %tldm_hi22(foo), %l1
2776 add %l1, %tldm_lo10(foo), %l2
2777 add %l7, %l2, %o0, %tldm_add(foo)
2778 call __tls_get_addr, %tldm_call(foo)
2779 sethi %tldo_hix22(foo), %l3
2780 xor %l3, %tldo_lox10(foo), %l4
2781 add %o0, %l4, %l5, %tldo_add(foo)
2782 sethi %tie_hi22(foo), %o3
2783 add %o3, %tie_lo10(foo), %o3
2784 ld [%l7 + %o3], %o2, %tie_ld(foo)
2785 add %g7, %o2, %o4, %tie_add(foo)
2786 sethi %tle_hix22(foo), %l1
2787 xor %l1, %tle_lox10(foo), %o5
2788 ld [%g7 + %o5], %o1'
2791 tls_as_opt="-32 --fatal-warnings"
2796 .section ".tdata","awT",@progbits
2799 movi a8, foo@TLSFUNC
2800 movi a10, foo@TLSARG
2801 callx8.tls a8, foo@TLSCALL'
2808 if test "x$enable_tls" = xno ; then
2809 : # TLS explicitly disabled.
2810 elif test "x$enable_tls" = xyes ; then
2811 set_have_as_tls=yes # TLS explicitly enabled.
2812 elif test -z "$tls_first_major"; then
2813 : # If we don't have a check, assume no support.
2815 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2816 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2817 [set_have_as_tls=yes])
2819 if test $set_have_as_tls = yes ; then
2820 AC_DEFINE(HAVE_AS_TLS, 1,
2821 [Define if your assembler supports thread-local storage.])
2824 # Target-specific assembler checks.
2826 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2827 gcc_cv_ld_static_dynamic=no
2828 if test $in_tree_ld = yes ; then
2829 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2; then
2830 gcc_cv_ld_static_dynamic=yes
2832 elif test x$gcc_cv_ld != x; then
2833 # Check if linker supports -Bstatic/-Bdynamic option
2834 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2835 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2836 gcc_cv_ld_static_dynamic=yes
2839 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2840 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2841 [Define if your linker supports -Bstatic/-Bdynamic option.])
2843 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2845 if test x"$demangler_in_ld" = xyes; then
2846 AC_MSG_CHECKING(linker --demangle support)
2847 gcc_cv_ld_demangle=no
2848 if test $in_tree_ld = yes; then
2849 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2850 gcc_cv_ld_demangle=yes
2852 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2853 # Check if the GNU linker supports --demangle option
2854 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2855 gcc_cv_ld_demangle=yes
2858 if test x"$gcc_cv_ld_demangle" = xyes; then
2859 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2860 [Define if your linker supports --demangle option.])
2862 AC_MSG_RESULT($gcc_cv_ld_demangle)
2866 # All TARGET_ABI_OSF targets.
2867 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2868 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2869 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2872 extbl $3, $2, $3 !lituse_bytoff!1
2873 ldq $2, a($29) !literal!1
2874 ldq $4, b($29) !literal!2
2875 ldq_u $3, 0($2) !lituse_base!1
2876 ldq $27, f($29) !literal!5
2877 jsr $26, ($27), f !lituse_jsr!5
2878 ldah $29, 0($26) !gpdisp!3
2879 lda $0, c($29) !gprel
2880 ldah $1, d($29) !gprelhigh
2881 lda $1, d($1) !gprellow
2882 lda $29, 0($29) !gpdisp!3],,
2883 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2884 [Define if your assembler supports explicit relocations.])])
2885 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2886 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2889 ldq $27, a($29) !literal!1
2890 jsr $26, ($27), a !lituse_jsrdirect!1],,
2891 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2892 [Define if your assembler supports the lituse_jsrdirect relocation.])])
2896 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2897 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2898 [-no-mul-bug-abort], [.text],,
2899 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2900 [Define if your assembler supports the -no-mul-bug-abort option.])])
2904 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2905 [.register %g2, #scratch],,
2906 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2907 [Define if your assembler supports .register.])])
2909 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2911 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2912 [Define if your assembler supports -relax option.])])
2914 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2915 gcc_cv_as_sparc_ua_pcrel,,
2923 .uaword %r_disp32(foo)],
2924 [if test x$gcc_cv_ld != x \
2925 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2926 gcc_cv_as_sparc_ua_pcrel=yes
2929 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2930 [Define if your assembler and linker support unaligned PC relative relocs.])
2932 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2933 gcc_cv_as_sparc_ua_pcrel_hidden,,
2938 .uaword %r_disp32(foo)
2939 .byte 0x32, 0x33, 0x34
2944 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2945 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2946 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2947 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2948 if $gcc_cv_objdump -R conftest 2> /dev/null \
2949 | grep 'DISP32' > /dev/null 2>&1; then
2952 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2956 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2957 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2958 ]) # unaligned pcrel relocs
2960 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2961 gcc_cv_as_sparc_offsetable_lo10,,
2964 or %g1, %lo(ab) + 12, %g1
2965 or %g1, %lo(ab + 12), %g1],
2966 [if test x$gcc_cv_objdump != x \
2967 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2968 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2969 gcc_cv_as_sparc_offsetable_lo10=yes
2971 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2972 [Define if your assembler supports offsetable %lo().])])
2976 i[34567]86-*-* | x86_64-*-*)
2979 cygwin* | pe | mingw32*)
2980 # Recent binutils allows the three-operand form of ".comm" on PE. This
2981 # definition is used unconditionally to initialise the default state of
2982 # the target option variable that governs usage of the feature.
2983 gcc_GAS_CHECK_FEATURE([.comm with alignment], gcc_cv_as_comm_has_align,
2984 [2,19,52],,[.comm foo,1,32])
2985 AC_DEFINE_UNQUOTED(HAVE_GAS_ALIGNED_COMM,
2986 [`if test $gcc_cv_as_comm_has_align = yes; then echo 1; else echo 0; fi`],
2987 [Define if your assembler supports specifying the alignment
2988 of objects allocated using the GAS .comm command.])
2989 # Used for DWARF 2 in PE
2990 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2991 gcc_cv_as_ix86_pe_secrel32,
2997 [if test x$gcc_cv_ld != x \
2998 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2999 gcc_cv_as_ix86_pe_secrel32=yes
3002 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
3003 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
3007 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
3008 gcc_cv_as_ix86_filds,,,
3009 [filds mem; fists mem],,
3010 [AC_DEFINE(HAVE_AS_IX86_FILDS, 1,
3011 [Define if your assembler uses filds and fists mnemonics.])])
3013 gcc_GAS_CHECK_FEATURE([fildq and fistpq mnemonics],
3014 gcc_cv_as_ix86_fildq,,,
3015 [fildq mem; fistpq mem],,
3016 [AC_DEFINE(HAVE_AS_IX86_FILDQ, 1,
3017 [Define if your assembler uses fildq and fistq mnemonics.])])
3019 gcc_GAS_CHECK_FEATURE([cmov syntax],
3020 gcc_cv_as_ix86_cmov_sun_syntax,,,
3021 [cmovl.l %edx, %eax],,
3022 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
3023 [Define if your assembler supports the Sun syntax for cmov.])])
3025 gcc_GAS_CHECK_FEATURE([ffreep mnemonic],
3026 gcc_cv_as_ix86_ffreep,,,
3028 [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1,
3029 [Define if your assembler supports the ffreep mnemonic.])])
3031 gcc_GAS_CHECK_FEATURE([sahf mnemonic],
3032 gcc_cv_as_ix86_sahf,,,
3034 [AC_DEFINE(HAVE_AS_IX86_SAHF, 1,
3035 [Define if your assembler supports the sahf mnemonic.])])
3037 gcc_GAS_CHECK_FEATURE([different section symbol subtraction],
3038 gcc_cv_as_ix86_diff_sect_delta,,,
3046 [AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1,
3047 [Define if your assembler supports the subtraction of symbols in different sections.])])
3049 # This one is used unconditionally by i386.[ch]; it is to be defined
3050 # to 1 if the feature is present, 0 otherwise.
3051 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
3052 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
3058 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
3059 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
3060 [Define true if the assembler supports '.long foo@GOTOFF'.])
3064 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
3065 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
3067 addl r15 = @ltoffx(x#), gp
3069 ld8.mov r16 = [[r15]], x#],,
3070 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
3071 [Define if your assembler supports ltoffx and ldxmov relocations.])])
3077 *-*-aix*) conftest_s=' .machine "pwr5"
3081 gcc_GAS_CHECK_FEATURE([.machine directive support],
3082 gcc_cv_as_machine_directive,,,
3083 [ .machine ppc7400])
3084 if test x$gcc_cv_as_machine_directive != xyes; then
3085 echo "*** This target requires an assembler supporting \".machine\"" >&2
3086 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
3087 test x$build = x$target && exit 1
3091 *) conftest_s=' .machine power4
3096 gcc_GAS_CHECK_FEATURE([mfcr field support],
3097 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
3099 [AC_DEFINE(HAVE_AS_MFCRF, 1,
3100 [Define if your assembler supports mfcr field.])])
3103 *-*-aix*) conftest_s=' .machine "pwr5"
3106 *) conftest_s=' .machine power5
3111 gcc_GAS_CHECK_FEATURE([popcntb support],
3112 gcc_cv_as_powerpc_popcntb, [2,17,0],,
3114 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
3115 [Define if your assembler supports popcntb field.])])
3118 *-*-aix*) conftest_s=' .machine "pwr5x"
3121 *) conftest_s=' .machine power5
3126 gcc_GAS_CHECK_FEATURE([fp round support],
3127 gcc_cv_as_powerpc_fprnd, [2,17,0],,
3129 [AC_DEFINE(HAVE_AS_FPRND, 1,
3130 [Define if your assembler supports fprnd.])])
3133 *-*-aix*) conftest_s=' .machine "pwr6"
3136 *) conftest_s=' .machine power6
3141 gcc_GAS_CHECK_FEATURE([move fp gpr support],
3142 gcc_cv_as_powerpc_mfpgpr, [2,19,2],,
3144 [AC_DEFINE(HAVE_AS_MFPGPR, 1,
3145 [Define if your assembler supports mffgpr and mftgpr.])])
3148 *-*-aix*) conftest_s=' .csect .text[[PR]]
3150 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
3154 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
3155 *) conftest_s=' .text
3157 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
3160 gcc_GAS_CHECK_FEATURE([rel16 relocs],
3161 gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
3163 [AC_DEFINE(HAVE_AS_REL16, 1,
3164 [Define if your assembler supports R_PPC_REL16 relocs.])])
3167 *-*-aix*) conftest_s=' .machine "pwr6"
3170 *) conftest_s=' .machine power6
3175 gcc_GAS_CHECK_FEATURE([compare bytes support],
3176 gcc_cv_as_powerpc_cmpb, [2,19,2], -a32,
3178 [AC_DEFINE(HAVE_AS_CMPB, 1,
3179 [Define if your assembler supports cmpb.])])
3182 *-*-aix*) conftest_s=' .machine "pwr6"
3185 *) conftest_s=' .machine power6
3190 gcc_GAS_CHECK_FEATURE([decimal float support],
3191 gcc_cv_as_powerpc_dfp, [2,19,2], -a32,
3193 [AC_DEFINE(HAVE_AS_DFP, 1,
3194 [Define if your assembler supports DFP instructions.])])
3197 *-*-aix*) conftest_s=' .machine "pwr7"
3200 *) conftest_s=' .machine power7
3205 gcc_GAS_CHECK_FEATURE([vector-scalar support],
3206 gcc_cv_as_powerpc_vsx, [2,19,2], -a32,
3208 [AC_DEFINE(HAVE_AS_VSX, 1,
3209 [Define if your assembler supports VSX instructions.])])
3212 *-*-aix*) conftest_s=' .machine "pwr7"
3215 *) conftest_s=' .machine power7
3220 gcc_GAS_CHECK_FEATURE([popcntd support],
3221 gcc_cv_as_powerpc_popcntd, [2,19,2], -a32,
3223 [AC_DEFINE(HAVE_AS_POPCNTD, 1,
3224 [Define if your assembler supports POPCNTD instructions.])])
3227 *-*-aix*) conftest_s=' .csect .text[[PR]]
3229 *) conftest_s=' .text
3233 gcc_GAS_CHECK_FEATURE([lwsync support],
3234 gcc_cv_as_powerpc_lwsync, [2,19,2], -a32,
3236 [AC_DEFINE(HAVE_AS_LWSYNC, 1,
3237 [Define if your assembler supports LWSYNC instructions.])])
3239 gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
3240 gcc_cv_as_powerpc_gnu_attribute, [2,18,0],,
3241 [.gnu_attribute 4,1],,
3242 [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
3243 [Define if your assembler supports .gnu_attribute.])])
3245 gcc_GAS_CHECK_FEATURE([tls marker support],
3246 gcc_cv_as_powerpc_tls_markers, [2,20,0],,
3247 [ bl __tls_get_addr(x@tlsgd)],,
3248 [AC_DEFINE(HAVE_AS_TLS_MARKERS, 1,
3249 [Define if your assembler supports arg info for __tls_get_addr.])])
3253 gcc_GAS_CHECK_FEATURE([explicit relocation support],
3254 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
3255 [ lw $4,%gp_rel(foo)($4)],,
3256 [if test x$target_cpu_default = x
3257 then target_cpu_default=MASK_EXPLICIT_RELOCS
3258 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
3260 gcc_GAS_CHECK_FEATURE([-mno-shared support],
3261 gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],,
3262 [AC_DEFINE(HAVE_AS_NO_SHARED, 1,
3263 [Define if the assembler understands -mno-shared.])])
3265 gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
3266 gcc_cv_as_mips_gnu_attribute, [2,18,0],,
3267 [.gnu_attribute 4,1],,
3268 [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
3269 [Define if your assembler supports .gnu_attribute.])])
3271 gcc_GAS_CHECK_FEATURE([.dtprelword support],
3272 gcc_cv_as_mips_dtprelword, [2,18,0],,
3273 [.section .tdata,"awT",@progbits
3277 .dtprelword x+0x8000],,
3278 [AC_DEFINE(HAVE_AS_DTPRELWORD, 1,
3279 [Define if your assembler supports .dtprelword.])])
3283 # Mips and HP-UX need the GNU assembler.
3284 # Linux on IA64 might be able to use the Intel assembler.
3287 mips*-*-* | *-*-hpux* )
3288 if test x$gas_flag = xyes \
3289 || test x"$host" != x"$build" \
3290 || test ! -x "$gcc_cv_as" \
3291 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
3294 echo "*** This configuration requires the GNU assembler" >&2
3300 # ??? Not all targets support dwarf2 debug_line, even within a version
3301 # of gas. Moreover, we need to emit a valid instruction to trigger any
3302 # info to the output file. So, as supported targets are added to gas 2.11,
3303 # add some instruction here to (also) show we expect this might work.
3304 # ??? Once 2.11 is released, probably need to add first known working
3305 # version to the per-target configury.
3307 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
3308 | x86_64*-*-* | hppa*-*-* | arm*-*-* \
3309 | xstormy16*-*-* | cris-*-* | crisv32-*-* | xtensa*-*-* | bfin-*-* | score*-*-* \
3310 | spu-*-* | fido*-*-* | m32c-*-*)
3313 ia64*-*-* | s390*-*-*)
3320 if test x"$insn" != x; then
3322 .file 1 \"conftest.s\"
3325 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
3326 gcc_cv_as_dwarf2_debug_line,
3327 [elf,2,11,0],, [$conftest_s],
3328 [if test x$gcc_cv_objdump != x \
3329 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
3330 | grep debug_line > /dev/null 2>&1; then
3331 gcc_cv_as_dwarf2_debug_line=yes
3334 # The .debug_line file table must be in the exact order that
3335 # we specified the files, since these indices are also used
3336 # by DW_AT_decl_file. Approximate this test by testing if
3337 # the assembler bitches if the same index is assigned twice.
3338 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
3339 gcc_cv_as_dwarf2_file_buggy,,,
3343 if test $gcc_cv_as_dwarf2_debug_line = yes \
3344 && test $gcc_cv_as_dwarf2_file_buggy = no; then
3345 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
3346 [Define if your assembler supports dwarf2 .file/.loc directives,
3347 and preserves file table indices exactly as given.])
3350 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
3351 gcc_cv_as_gdwarf2_flag,
3352 [elf,2,11,0], [--gdwarf2], [$insn],,
3353 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
3354 [Define if your assembler supports the --gdwarf2 option.])])
3356 gcc_GAS_CHECK_FEATURE([--gstabs option],
3357 gcc_cv_as_gstabs_flag,
3358 [elf,2,11,0], [--gstabs], [$insn],
3359 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
3360 # and warns about it, but still exits successfully. So check for
3362 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
3364 else gcc_cv_as_gstabs_flag=yes
3366 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
3367 [Define if your assembler supports the --gstabs option.])])
3369 gcc_GAS_CHECK_FEATURE([--debug-prefix-map option],
3370 gcc_cv_as_debug_prefix_map_flag,
3371 [2,18,0], [--debug-prefix-map /a=/b], [$insn],,
3372 [AC_DEFINE(HAVE_AS_DEBUG_PREFIX_MAP, 1,
3373 [Define if your assembler supports the --debug-prefix-map option.])])
3376 gcc_GAS_CHECK_FEATURE([.lcomm with alignment], gcc_cv_as_lcomm_with_alignment,
3379 [AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1,
3380 [Define if your assembler supports .lcomm with an alignment field.])])
3382 AC_CACHE_CHECK([assembler for tolerance to line number 0],
3383 [gcc_cv_as_line_zero],
3384 [gcc_cv_as_line_zero=no
3385 if test $in_tree_gas = yes; then
3386 gcc_GAS_VERSION_GTE_IFELSE(2, 16, 91, [gcc_cv_as_line_zero=yes])
3387 elif test "x$gcc_cv_as" != x; then
3388 { echo '# 1 "test.s" 1'; echo '# 0 "" 2'; } > conftest.s
3389 if AC_TRY_COMMAND([$gcc_cv_as -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD 2>conftest.out]) &&
3390 test "x`cat conftest.out`" = x
3392 gcc_cv_as_line_zero=yes
3394 echo "configure: failed program was" >&AS_MESSAGE_LOG_FD
3395 cat conftest.s >&AS_MESSAGE_LOG_FD
3396 echo "configure: error output was" >&AS_MESSAGE_LOG_FD
3397 cat conftest.out >&AS_MESSAGE_LOG_FD
3399 rm -f conftest.o conftest.s conftest.out
3401 if test "x$gcc_cv_as_line_zero" = xyes; then
3402 AC_DEFINE([HAVE_AS_LINE_ZERO], 1,
3403 [Define if the assembler won't complain about a line such as # 0 "" 2.])
3406 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
3407 gcc_cv_ld_eh_frame_hdr=no
3408 if test $in_tree_ld = yes ; then
3409 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
3410 && test $in_tree_ld_is_elf = yes; then
3411 gcc_cv_ld_eh_frame_hdr=yes
3413 elif test x$gcc_cv_ld != x; then
3414 # Check if linker supports --eh-frame-hdr option
3415 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
3416 gcc_cv_ld_eh_frame_hdr=yes
3419 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
3420 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
3421 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
3422 [Define if your linker supports --eh-frame-hdr option.])
3424 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
3426 AC_MSG_CHECKING(linker position independent executable support)
3428 if test $in_tree_ld = yes ; then
3429 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
3430 && test $in_tree_ld_is_elf = yes; then
3433 elif test x$gcc_cv_ld != x; then
3434 # Check if linker supports -pie option
3435 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
3439 if test x"$gcc_cv_ld_pie" = xyes; then
3440 AC_DEFINE(HAVE_LD_PIE, 1,
3441 [Define if your linker supports -pie option.])
3443 AC_MSG_RESULT($gcc_cv_ld_pie)
3445 AC_MSG_CHECKING(linker EH-compatible garbage collection of sections)
3446 gcc_cv_ld_eh_gc_sections=no
3447 if test $in_tree_ld = yes ; then
3448 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \
3449 && test $in_tree_ld_is_elf = yes; then
3450 gcc_cv_ld_eh_gc_sections=yes
3452 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
3453 cat > conftest.s <<EOF
3456 .type _start, @function
3459 .size _start, .-_start
3460 .section .text.foo,"ax",@progbits
3461 .type foo, @function
3465 .section .gcc_except_table.foo,"a",@progbits
3468 .section .eh_frame,"a",@progbits
3471 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
3472 if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
3473 | grep "gc-sections option ignored" > /dev/null; then
3474 gcc_cv_ld_eh_gc_sections=no
3475 elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
3476 gcc_cv_ld_eh_gc_sections=yes
3477 # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections.
3478 if test x$gcc_cv_as_comdat_group != xyes; then
3479 gcc_cv_ld_eh_gc_sections=no
3480 cat > conftest.s <<EOF
3483 .type _start, @function
3486 .size _start, .-_start
3487 .section .gnu.linkonce.t.foo,"ax",@progbits
3488 .type foo, @function
3492 .section .gcc_except_table.foo,"a",@progbits
3495 .section .eh_frame,"a",@progbits
3498 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
3499 if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
3500 | grep "gc-sections option ignored" > /dev/null; then
3501 gcc_cv_ld_eh_gc_sections=no
3502 elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
3503 gcc_cv_ld_eh_gc_sections=yes
3509 rm -f conftest.s conftest.o conftest
3513 # ??? This apparently exposes a binutils bug with PC-relative relocations.
3514 gcc_cv_ld_eh_gc_sections=no
3517 if test x$gcc_cv_ld_eh_gc_sections = xyes; then
3518 AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1,
3519 [Define if your linker supports garbage collection of
3520 sections in presence of EH frames.])
3522 AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections)
3528 AC_CACHE_CHECK(linker --as-needed support,
3529 gcc_cv_ld_as_needed,
3530 [gcc_cv_ld_as_needed=no
3531 if test $in_tree_ld = yes ; then
3532 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
3533 && test $in_tree_ld_is_elf = yes; then
3534 gcc_cv_ld_as_needed=yes
3536 elif test x$gcc_cv_ld != x; then
3537 # Check if linker supports --as-needed and --no-as-needed options
3538 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
3539 gcc_cv_ld_as_needed=yes
3543 if test x"$gcc_cv_ld_as_needed" = xyes; then
3544 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
3545 [Define if your linker supports --as-needed and --no-as-needed options.])
3548 case "$target:$tm_file" in
3549 powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
3550 AC_CACHE_CHECK(linker support for omitting dot symbols,
3551 gcc_cv_ld_no_dot_syms,
3552 [gcc_cv_ld_no_dot_syms=no
3553 if test $in_tree_ld = yes ; then
3554 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
3555 gcc_cv_ld_no_dot_syms=yes
3557 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
3558 cat > conftest1.s <<EOF
3562 cat > conftest2.s <<EOF
3563 .section ".opd","aw"
3568 .quad .LEfoo,.TOC.@tocbase,0
3574 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
3575 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
3576 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
3577 gcc_cv_ld_no_dot_syms=yes
3579 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3582 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3583 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3584 [Define if your PowerPC64 linker only needs function descriptor syms.])
3589 AC_CACHE_CHECK(linker --build-id support,
3591 [gcc_cv_ld_buildid=no
3592 if test $in_tree_ld = yes ; then
3593 if test "$gcc_cv_gld_major_version" -eq 2 -a \
3594 "$gcc_cv_gld_minor_version" -ge 18 -o \
3595 "$gcc_cv_gld_major_version" -gt 2 \
3596 && test $in_tree_ld_is_elf = yes; then
3597 gcc_cv_ld_buildid=yes
3599 elif test x$gcc_cv_ld != x; then
3600 if $gcc_cv_ld --help 2>/dev/null | grep build-id > /dev/null; then
3601 gcc_cv_ld_buildid=yes
3604 if test x"$gcc_cv_ld_buildid" = xyes; then
3605 AC_DEFINE(HAVE_LD_BUILDID, 1,
3606 [Define if your linker supports --build-id.])
3609 AC_ARG_ENABLE(linker-build-id,
3610 [ --enable-linker-build-id
3611 compiler will always pass --build-id to linker],
3613 enable_linker_build_id=no)
3615 if test x"$enable_linker_build_id" = xyes; then
3616 if test x"$gcc_cv_ld_buildid" = xyes; then
3617 AC_DEFINE(ENABLE_LD_BUILDID, 1,
3618 [Define if gcc should always pass --build-id to linker.])
3620 AC_MSG_WARN(--build-id is not supported by your linker; --enable-linker-build-id ignored)
3624 AC_CACHE_CHECK(linker --sysroot support,
3626 [gcc_cv_ld_sysroot=no
3627 if test $in_tree_ld = yes ; then
3628 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
3629 gcc_cv_ld_sysroot=yes
3631 elif test x$gcc_cv_ld != x; then
3632 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3633 gcc_cv_ld_sysroot=yes
3636 if test x"$gcc_cv_ld_sysroot" = xyes; then
3637 AC_DEFINE(HAVE_LD_SYSROOT, 1,
3638 [Define if your linker supports --sysroot.])
3641 if test x$with_sysroot = x && test x$host = x$target \
3642 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \
3643 && test "$prefix" != "NONE"; then
3644 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3645 [Define to PREFIX/include if cpp should also search that directory.])
3648 # Test for stack protector support in target C library.
3649 AC_CACHE_CHECK(__stack_chk_fail in target C library,
3650 gcc_cv_libc_provides_ssp,
3651 [gcc_cv_libc_provides_ssp=no
3653 *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
3654 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3655 if test "x$with_sysroot" = x; then
3656 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3657 elif test "x$with_build_sysroot" != "x"; then
3658 glibc_header_dir="${with_build_sysroot}/usr/include"
3659 elif test "x$with_sysroot" = xyes; then
3660 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3662 glibc_header_dir="${with_sysroot}/usr/include"
3665 glibc_header_dir=/usr/include
3667 # glibc 2.4 and later provides __stack_chk_fail and
3668 # either __stack_chk_guard, or TLS access to stack guard canary.
3669 if test -f $glibc_header_dir/features.h \
3670 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
3671 $glibc_header_dir/features.h > /dev/null; then
3672 if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
3673 $glibc_header_dir/features.h > /dev/null; then
3674 gcc_cv_libc_provides_ssp=yes
3675 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
3676 $glibc_header_dir/features.h > /dev/null \
3677 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
3678 $glibc_header_dir/features.h > /dev/null; then
3679 gcc_cv_libc_provides_ssp=yes
3680 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__UCLIBC__[ ]+1' \
3681 $glibc_header_dir/features.h > /dev/null && \
3682 test -f $glibc_header_dir/bits/uClibc_config.h && \
3683 $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \
3684 $glibc_header_dir/bits/uClibc_config.h > /dev/null; then
3685 gcc_cv_libc_provides_ssp=yes
3690 # Avoid complicated tests (see
3691 # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now
3692 # simply assert that glibc does provide this, which is true for all
3693 # realistically usable GNU/Hurd configurations.
3694 gcc_cv_libc_provides_ssp=yes;;
3696 AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes],
3697 [echo "no __stack_chk_fail on this target"])
3699 *) gcc_cv_libc_provides_ssp=no ;;
3702 if test x$gcc_cv_libc_provides_ssp = xyes; then
3703 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
3704 [Define if your target C library provides stack protector support])
3707 # Check if TFmode long double should be used by default or not.
3708 # Some glibc targets used DFmode long double, but with glibc 2.4
3709 # and later they can use TFmode.
3711 powerpc*-*-linux* | \
3716 AC_ARG_WITH(long-double-128,
3717 [ --with-long-double-128 Use 128-bit long double by default.],
3718 gcc_cv_target_ldbl128="$with_long_double_128",
3719 [gcc_cv_target_ldbl128=no
3720 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3721 if test "x$with_sysroot" = x; then
3722 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3723 elif test "x$with_build_sysroot" != "x"; then
3724 glibc_header_dir="${with_build_sysroot}/usr/include"
3725 elif test "x$with_sysroot" = xyes; then
3726 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3728 glibc_header_dir="${with_sysroot}/usr/include"
3731 glibc_header_dir=/usr/include
3734 grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \
3735 $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \
3736 && gcc_cv_target_ldbl128=yes
3741 if test x$gcc_cv_target_ldbl128 = xyes; then
3742 AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1,
3743 [Define if TFmode long double should be the default])
3746 # Find out what GC implementation we want, or may, use.
3748 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3756 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3759 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3764 echo "Using $GGC for garbage collection."
3766 # Libraries to use on the host. This will normally be set by the top
3767 # level Makefile. Here we simply capture the value for our Makefile.
3768 if test -z "${HOST_LIBS+set}"; then
3773 # Use the system's zlib library.
3775 zlibinc="-I\$(srcdir)/../zlib"
3776 AC_ARG_WITH(system-zlib,
3777 [ --with-system-zlib use installed libz],
3784 dnl Very limited version of automake's enable-maintainer-mode
3786 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3787 dnl maintainer-mode is disabled by default
3788 AC_ARG_ENABLE(maintainer-mode,
3789 [ --enable-maintainer-mode
3790 enable make rules and dependencies not useful
3791 (and sometimes confusing) to the casual installer],
3792 maintainer_mode=$enableval,
3795 AC_MSG_RESULT($maintainer_mode)
3797 if test "$maintainer_mode" = "yes"; then
3808 # Make empty files to contain the specs and options for each language.
3809 # Then add #include lines to for a compiler that has specs and/or options.
3815 # These (without "all_") are set in each config-lang.in.
3816 # `language' must be a single word so is spelled singularly.
3819 all_outputs='Makefile gccbug'
3820 # List of language makefile fragments.
3822 # List of language subdirectory makefiles. Deprecated.
3824 # Additional files for gengtype
3825 all_gtfiles="$target_gtfiles"
3827 # These are the languages that are set in --enable-languages,
3828 # and are available in the GCC tree.
3829 all_selected_languages=
3831 # Add the language fragments.
3832 # Languages are added via two mechanisms. Some information must be
3833 # recorded in makefile variables, these are defined in config-lang.in.
3834 # We accumulate them and plug them into the main Makefile.
3835 # The other mechanism is a set of hooks for each of the main targets
3836 # like `clean', `install', etc.
3838 language_hooks="Make-hooks"
3840 for lang in ${srcdir}/*/config-lang.in
3843 test "$lang" = "${srcdir}/*/config-lang.in" && continue
3845 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
3846 if test "x$lang_alias" = x
3848 echo "$lang doesn't set \$language." 1>&2
3851 subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
3852 subdirs="$subdirs $subdir"
3854 # $gcc_subdir is where the gcc integration files are to be found
3855 # for a language, both for internal compiler purposes (compiler
3856 # sources implementing front-end to GCC tree converters), and for
3857 # build infrastructure purposes (Make-lang.in, etc.)
3859 # This will be <subdir> (relative to $srcdir) if a line like
3860 # gcc_subdir="<subdir>" or gcc_subdir=<subdir>
3861 # is found in <langdir>/config-lang.in, and will remain <langdir>
3864 # Except for the language alias (fetched above), the regular
3865 # "config-lang.in" contents are always retrieved from $gcc_subdir,
3866 # so a <langdir>/config-lang.in setting gcc_subdir typically sets
3867 # only this and the language alias.
3869 gcc_subdir=`sed -n -e 's,^gcc_subdir=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^gcc_subdir=\([^ ]*\).*$,\1,p' $lang`
3870 if [ "$gcc_subdir" = "" ]; then
3871 gcc_subdir="$subdir"
3874 case ",$enable_languages," in
3876 all_selected_languages="$all_selected_languages $lang_alias"
3877 if test -f $srcdir/$gcc_subdir/lang-specs.h; then
3878 lang_specs_files="$lang_specs_files $srcdir/$gcc_subdir/lang-specs.h"
3890 . ${srcdir}/$gcc_subdir/config-lang.in
3891 if test "x$language" = x
3893 echo "${srcdir}/$gcc_subdir/config-lang.in doesn't set \$language." 1>&2
3898 case ",$enable_languages," in
3901 for i in $subdir_requires; do
3902 test -f "${srcdir}/$i/config-lang.in" && continue
3910 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in"
3911 if test -f $srcdir/$gcc_subdir/lang.opt; then
3912 lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt"
3914 if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then
3915 lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def"
3917 if test -f ${srcdir}/$gcc_subdir/Makefile.in
3918 then all_lang_makefiles="$gcc_subdir/Makefile"
3920 all_languages="$all_languages $language"
3921 all_compilers="$all_compilers $compilers"
3922 all_outputs="$all_outputs $outputs"
3923 all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles"
3926 # Pick up gtfiles for c
3928 . ${srcdir}/c-config-lang.in
3929 all_gtfiles="$all_gtfiles [[c]] $gtfiles"
3932 for language in $all_selected_languages
3934 check_languages="$check_languages check-$language"
3937 # We link each language in with a set of hooks, reached indirectly via
3938 # lang.${target}. Only do so for selected languages.
3942 target_list="all.cross start.encap rest.encap tags \
3943 install-common install-man install-info install-pdf dvi pdf \
3944 html uninstall info man srcextra srcman srcinfo \
3945 mostlyclean clean distclean maintainer-clean"
3947 for t in $target_list
3950 for lang in $all_selected_languages
3954 echo "lang.$t: $x" >> Make-hooks
3963 echo "dir ." > .gdbinit
3964 echo "dir ${srcdir}" >> .gdbinit
3965 if test x$gdb_needs_out_file_path = xyes
3967 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3969 if test "x$subdirs" != x; then
3972 echo "dir ${srcdir}/$s" >> .gdbinit
3975 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3977 gcc_tooldir='$(libsubdir)/$(libsubdir_to_prefix)$(target_noncanonical)'
3978 AC_SUBST(gcc_tooldir)
3981 # Find a directory in which to install a shared libgcc.
3983 AC_ARG_ENABLE(version-specific-runtime-libs,
3984 [ --enable-version-specific-runtime-libs
3985 specify that runtime libraries should be
3986 installed in a compiler-specific directory])
3988 AC_ARG_WITH(slibdir,
3989 [ --with-slibdir=DIR shared libraries in DIR [[LIBDIR]]],
3990 slibdir="$with_slibdir",
3991 if test "${enable_version_specific_runtime_libs+set}" = set; then
3992 slibdir='$(libsubdir)'
3993 elif test "$host" != "$target"; then
3994 slibdir='$(build_tooldir)/lib'
4000 AC_ARG_WITH(datarootdir,
4001 [ --with-datarootdir=DIR Use DIR as the data root [[PREFIX/share]]],
4002 datarootdir="\${prefix}/$with_datarootdir",
4003 datarootdir='$(prefix)/share')
4004 AC_SUBST(datarootdir)
4007 [ --with-docdir=DIR Install documentation in DIR [[DATAROOTDIR]]],
4008 docdir="\${prefix}/$with_docdir",
4009 docdir='$(datarootdir)')
4012 AC_ARG_WITH(htmldir,
4013 [ --with-htmldir=DIR html documentation in in DIR [[DOCDIR]]],
4014 htmldir="\${prefix}/$with_htmldir",
4015 htmldir='$(docdir)')
4018 # Substitute configuration variables
4021 AC_SUBST(all_compilers)
4022 AC_SUBST(all_gtfiles)
4023 AC_SUBST(all_lang_makefrags)
4024 AC_SUBST(all_lang_makefiles)
4025 AC_SUBST(all_languages)
4026 AC_SUBST(all_selected_languages)
4027 AC_SUBST(build_exeext)
4028 AC_SUBST(build_install_headers_dir)
4029 AC_SUBST(build_xm_file_list)
4030 AC_SUBST(build_xm_include_list)
4031 AC_SUBST(build_xm_defines)
4032 AC_SUBST(build_file_translate)
4033 AC_SUBST(check_languages)
4034 AC_SUBST(cpp_install_dir)
4035 AC_SUBST(xmake_file)
4036 AC_SUBST(tmake_file)
4037 AC_SUBST(TM_ENDIAN_CONFIG)
4038 AC_SUBST(TM_MULTILIB_CONFIG)
4039 AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG)
4040 AC_SUBST(extra_gcc_objs)
4041 AC_SUBST(extra_headers_list)
4042 AC_SUBST(extra_objs)
4043 AC_SUBST(extra_parts)
4044 AC_SUBST(extra_passes)
4045 AC_SUBST(extra_programs)
4046 AC_SUBST(float_h_file)
4047 AC_SUBST(gcc_config_arguments)
4048 AC_SUBST(gcc_gxx_include_dir)
4049 AC_SUBST(host_exeext)
4050 AC_SUBST(host_xm_file_list)
4051 AC_SUBST(host_xm_include_list)
4052 AC_SUBST(host_xm_defines)
4053 AC_SUBST(out_host_hook_obj)
4055 AC_SUBST(lang_opt_files)
4056 AC_SUBST(lang_specs_files)
4057 AC_SUBST(lang_tree_files)
4058 AC_SUBST(local_prefix)
4060 AC_SUBST(objc_boehm_gc)
4062 AC_SUBST(out_object_file)
4063 AC_SUBST(thread_file)
4064 AC_SUBST(tm_file_list)
4065 AC_SUBST(tm_include_list)
4066 AC_SUBST(tm_defines)
4067 AC_SUBST(tm_p_file_list)
4068 AC_SUBST(tm_p_include_list)
4069 AC_SUBST(xm_file_list)
4070 AC_SUBST(xm_include_list)
4071 AC_SUBST(xm_defines)
4072 AC_SUBST(use_gcc_stdint)
4073 AC_SUBST(c_target_objs)
4074 AC_SUBST(cxx_target_objs)
4075 AC_SUBST(fortran_target_objs)
4076 AC_SUBST(target_cpu_default)
4078 AC_SUBST_FILE(language_hooks)
4081 if test x${build} = x${host} ; then
4082 if test x${host} = x${target} ; then
4083 echo "Links are now set up to build a native compiler for ${target}." 1>&2
4085 echo "Links are now set up to build a cross-compiler" 1>&2
4086 echo " from ${host} to ${target}." 1>&2
4089 if test x${host} = x${target} ; then
4090 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
4091 echo " for ${target}." 1>&2
4093 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
4094 echo " from ${host} to ${target}." 1>&2
4098 AC_ARG_VAR(GMPLIBS,[How to link GMP])
4099 AC_ARG_VAR(GMPINC,[How to find GMP include files])
4101 case "${GMPLIBS}" in
4102 *-lmpc*) AC_DEFINE(HAVE_mpc, 1, [Define if mpc is in use.]) ;;
4105 AC_ARG_VAR(PPLLIBS,[How to link PPL])
4106 AC_ARG_VAR(PPLINC,[How to find PPL include files])
4108 AC_ARG_VAR(CLOOGLIBS,[How to link CLOOG])
4109 AC_ARG_VAR(CLOOGINC,[How to find CLOOG include files])
4110 if test "x${CLOOGLIBS}" != "x" ; then
4111 AC_DEFINE(HAVE_cloog, 1, [Define if cloog is in use.])
4114 # Check for plugin support
4115 AC_ARG_ENABLE(plugin,
4116 [ --enable-plugin enable plugin support],
4117 enable_plugin=$enableval,
4118 enable_plugin=yes; default_plugin=yes)
4121 if test x"$enable_plugin" = x"yes"; then
4122 # Check that the host supports -rdynamic and -ldl
4125 saved_LDFLAGS="$LDFLAGS"
4130 LDFLAGS="$LDFLAGS -rdynamic"
4131 AC_MSG_CHECKING([for -rdynamic])
4132 AC_TRY_LINK([],[return 0;],
4133 [AC_MSG_RESULT([yes]); have_rdynamic=yes],
4134 [AC_MSG_RESULT([no])])
4135 if test x"$have_rdynamic" = x"yes" ; then
4136 pluginlibs="-rdynamic"
4140 LDFLAGS="$LDFLAGS -ldl"
4141 AC_MSG_CHECKING([for -ldl])
4143 [#include <dlfcn.h>],
4144 [volatile int f = 0; if (f) dlopen ("dummy", 0);],
4145 [AC_MSG_RESULT([yes]); have_dl=yes],
4146 [AC_MSG_RESULT([no])])
4147 if test x"$have_dl" = x"yes"; then
4148 pluginlibs="$pluginlibs -ldl"
4151 # Check that we can build shared objects with -fPIC -shared
4152 LDFLAGS="$LDFLAGS -fPIC -shared"
4153 AC_MSG_CHECKING([for -fPIC -shared])
4155 [extern int X;],[return X == 0;],
4156 [AC_MSG_RESULT([yes]); have_pic_shared=yes],
4157 [AC_MSG_RESULT([no]); have_pic_shared=no])
4158 if test x"$have_pic_shared" != x"yes"; then
4163 # If plugin support had been requested but not available, fail.
4164 if test x"$enable_plugin" = x"no" ; then
4165 if test x"$default_plugin" != x"yes"; then
4167 Building GCC with plugin support requires a host that supports
4168 -fPIC, -shared, -ldl and -rdynamic.])
4172 LDFLAGS="$saved_LDFLAGS"
4176 AC_SUBST(pluginlibs)
4177 AC_SUBST(enable_plugin)
4178 if test x"$enable_plugin" = x"yes"; then
4179 AC_DEFINE(ENABLE_PLUGIN, 1, [Define to enable plugin support.])
4182 # Configure the subdirectories
4183 # AC_CONFIG_SUBDIRS($subdirs)
4185 # Create the Makefile
4186 # and configure language subdirectories
4187 AC_CONFIG_FILES($all_outputs)
4189 AC_CONFIG_COMMANDS([default],
4191 case ${CONFIG_HEADERS} in
4192 *auto-host.h:config.in*)
4195 # Make sure all the subdirs exist.
4196 for d in $subdirs doc build
4198 test -d $d || mkdir $d
4201 [subdirs='$subdirs'])