2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
5 # Free Software Foundation, Inc.
7 #This file is part of GCC.
9 #GCC is free software; you can redistribute it and/or modify it under
10 #the terms of the GNU General Public License as published by the Free
11 #Software Foundation; either version 2, or (at your option) any later
14 #GCC is distributed in the hope that it will be useful, but WITHOUT
15 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 #You should have received a copy of the GNU General Public License
20 #along with GCC; see the file COPYING. If not, write to the Free
21 #Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
24 # --------------------------------
25 # Initialization and sanity checks
26 # --------------------------------
30 AC_CONFIG_SRCDIR(tree.c)
31 AC_CONFIG_HEADER(auto-host.h:config.in)
33 gcc_version=`cat $srcdir/BASE-VER`
35 # Determine the host, build, and target systems
40 # Determine the noncanonical target name, for directory use.
41 ACX_NONCANONICAL_TARGET
43 # Determine the target- and build-specific subdirectories
46 # Set program_transform_name
49 # Check for bogus environment variables.
50 # Test if LIBRARY_PATH contains the notation for the current directory
51 # since this would lead to problems installing/building glibc.
52 # LIBRARY_PATH contains the current directory if one of the following
54 # - one of the terminals (":" and ";") is the first or last sign
55 # - two terminals occur directly after each other
56 # - the path contains an element with a dot in it
57 AC_MSG_CHECKING(LIBRARY_PATH variable)
59 case ${LIBRARY_PATH} in
60 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
61 library_path_setting="contains current directory"
64 library_path_setting="ok"
68 AC_MSG_RESULT($library_path_setting)
69 if test "$library_path_setting" != "ok"; then
71 *** LIBRARY_PATH shouldn't contain the current directory when
72 *** building gcc. Please change the environment variable
73 *** and run configure again.])
76 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
77 # since this would lead to problems installing/building glibc.
78 # GCC_EXEC_PREFIX contains the current directory if one of the following
80 # - one of the terminals (":" and ";") is the first or last sign
81 # - two terminals occur directly after each other
82 # - the path contains an element with a dot in it
83 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
85 case ${GCC_EXEC_PREFIX} in
86 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
87 gcc_exec_prefix_setting="contains current directory"
90 gcc_exec_prefix_setting="ok"
94 AC_MSG_RESULT($gcc_exec_prefix_setting)
95 if test "$gcc_exec_prefix_setting" != "ok"; then
97 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
98 *** building gcc. Please change the environment variable
99 *** and run configure again.])
106 # Specify the local prefix
108 AC_ARG_WITH(local-prefix,
109 [ --with-local-prefix=DIR specifies directory to put local include],
110 [case "${withval}" in
111 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
113 *) local_prefix=$with_local_prefix ;;
116 # Default local prefix if it is empty
117 if test x$local_prefix = x; then
118 local_prefix=/usr/local
121 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
122 # passed in by the toplevel make and thus we'd get different behavior
123 # depending on where we built the sources.
125 # Specify the g++ header file directory
126 AC_ARG_WITH(gxx-include-dir,
127 [ --with-gxx-include-dir=DIR
128 specifies directory to put g++ header files],
129 [case "${withval}" in
130 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
132 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
135 if test x${gcc_gxx_include_dir} = x; then
136 if test x${enable_version_specific_runtime_libs} = xyes; then
137 gcc_gxx_include_dir='${libsubdir}/include/c++'
139 libstdcxx_incdir='c++/$(version)'
140 changequote(<<, >>)dnl
141 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
146 AC_ARG_WITH(cpp_install_dir,
147 [ --with-cpp-install-dir=DIR
148 install the user visible C preprocessor in DIR
149 (relative to PREFIX) as well as PREFIX/bin],
150 [if test x$withval = xyes; then
151 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
152 elif test x$withval != xno; then
153 cpp_install_dir=$withval
156 # We would like to our source tree to be readonly. However when releases or
157 # pre-releases are generated, the flex/bison generated files as well as the
158 # various formats of manuals need to be included along with the rest of the
159 # sources. Therefore we have --enable-generated-files-in-srcdir to do
162 AC_MSG_CHECKING([whether to place generated files in the source directory])
163 dnl generated-files-in-srcdir is disabled by default
164 AC_ARG_ENABLE(generated-files-in-srcdir,
165 [ --enable-generated-files-in-srcdir
166 put copies of generated files in source dir
167 intended for creating source tarballs for users
168 without texinfo bison or flex.],
169 generated_files_in_srcdir=$enableval,
170 generated_files_in_srcdir=no)
172 AC_MSG_RESULT($generated_files_in_srcdir)
174 if test "$generated_files_in_srcdir" = "yes"; then
181 # -------------------
182 # Find default linker
183 # -------------------
187 [ --with-gnu-ld arrange to work with GNU ld.],
188 gnu_ld_flag="$with_gnu_ld",
191 # With pre-defined ld
193 [ --with-ld arrange to use the specified ld (full pathname)],
194 DEFAULT_LINKER="$with_ld")
195 if test x"${DEFAULT_LINKER+set}" = x"set"; then
196 if test ! -x "$DEFAULT_LINKER"; then
197 AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
198 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
201 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
202 [Define to enable the use of a default linker.])
205 AC_MSG_CHECKING([whether a default linker was specified])
206 if test x"${DEFAULT_LINKER+set}" = x"set"; then
207 if test x"$gnu_ld_flag" = x"no"; then
208 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
210 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
216 # With demangler in GNU ld
217 AC_ARG_WITH(demangler-in-ld,
218 [ --with-demangler-in-ld try to use demangler in GNU ld.],
219 demangler_in_ld="$with_demangler_in_ld",
222 # ----------------------
223 # Find default assembler
224 # ----------------------
228 [ --with-gnu-as arrange to work with GNU as],
229 gas_flag="$with_gnu_as",
233 [ --with-as arrange to use the specified as (full pathname)],
234 DEFAULT_ASSEMBLER="$with_as")
235 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
236 if test ! -x "$DEFAULT_ASSEMBLER"; then
237 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
238 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
241 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
242 [Define to enable the use of a default assembler.])
245 AC_MSG_CHECKING([whether a default assembler was specified])
246 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
247 if test x"$gas_flag" = x"no"; then
248 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
250 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
260 # If a non-executable a.out is present (e.g. created by GNU as above even if
261 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
262 # file, even when creating an executable, so an execution test fails.
263 # Remove possible default executable files to avoid this.
265 # FIXME: This really belongs into AC_PROG_CC and can be removed once
266 # Autoconf includes it.
267 rm -f a.out a.exe b.out
269 # Find the native compiler
272 # autoconf is lame and doesn't give us any substitution variable for this.
273 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
274 NO_MINUS_C_MINUS_O=yes
276 OUTPUT_OPTION='-o $@'
278 AC_SUBST(NO_MINUS_C_MINUS_O)
279 AC_SUBST(OUTPUT_OPTION)
281 # -------------------------
282 # Check C compiler features
283 # -------------------------
288 # sizeof(char) is 1 by definition.
289 AC_CHECK_SIZEOF(void *)
290 AC_CHECK_SIZEOF(short)
292 AC_CHECK_SIZEOF(long)
293 AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
294 AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)])
296 # ---------------------
297 # Warnings and checking
298 # ---------------------
300 # Check $CC warning features (if it's GCC).
301 # We want to use -pedantic, but we don't want warnings about
304 # So, we only use -pedantic if we can disable those warnings.
307 [whether ${CC} accepts -Wno-long-long],
308 [ac_cv_prog_cc_w_no_long_long],
309 [save_CFLAGS="$CFLAGS"
310 CFLAGS="-Wno-long-long"
311 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
312 [ac_cv_prog_cc_w_no_long_long=yes],
313 [ac_cv_prog_cc_w_no_long_long=no])
314 CFLAGS="$save_CFLAGS"
318 [whether ${CC} accepts -Wno-variadic-macros],
319 [ac_cv_prog_cc_w_no_variadic_macros],
320 [save_CFLAGS="$CFLAGS"
321 CFLAGS="-Wno-variadic-macros"
322 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
323 [ac_cv_prog_cc_w_no_variadic_macros=yes],
324 [ac_cv_prog_cc_w_no_variadic_macros=no])
325 CFLAGS="$save_CFLAGS"
329 if test $ac_cv_prog_cc_w_no_long_long = yes \
330 && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then
331 strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros"
334 # Add -Wold-style-definition if it's accepted
336 [whether ${CC} accepts -Wold-style-definition],
337 [ac_cv_prog_cc_w_old_style_definition],
338 [save_CFLAGS="$CFLAGS"
339 CFLAGS="-Wold-style-definition"
340 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
341 [ac_cv_prog_cc_w_old_style_definition=yes],
342 [ac_cv_prog_cc_w_old_style_definition=no])
343 CFLAGS="$save_CFLAGS"
345 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
346 strict1_warn="${strict1_warn} -Wold-style-definition"
349 # Add -Wmissing-format-attribute if it's accepted
351 [whether ${CC} accepts -Wmissing-format-attribute],
352 [ac_cv_prog_cc_w_missing_format_attribute],
353 [save_CFLAGS="$CFLAGS"
354 CFLAGS="-Wmissing-format-attribute"
355 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
356 [ac_cv_prog_cc_w_missing_format_attribute=yes],
357 [ac_cv_prog_cc_w_missing_format_attribute=no])
358 CFLAGS="$save_CFLAGS"
360 if test $ac_cv_prog_cc_w_missing_format_attribute = yes ; then
361 strict1_warn="${strict1_warn} -Wmissing-format-attribute"
364 # Enable -Werror, period.
365 AC_ARG_ENABLE(werror_always,
366 [ --enable-werror-always enable -Werror always], [],
367 [enable_werror_always=no])
368 if test x${enable_werror_always} = xyes ; then
369 strict1_warn="${strict1_warn} -Werror"
373 AC_SUBST(strict1_warn)
375 # If the native compiler is GCC, we can enable warnings even in stage1.
376 # That's useful for people building cross-compilers, or just running a
379 if test "x$GCC" = "xyes"; then
380 warn_cflags='$(GCC_WARN_CFLAGS)'
382 AC_SUBST(warn_cflags)
384 # Enable -Werror in bootstrap stage2 and later.
386 if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
389 AC_ARG_ENABLE(werror,
390 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
391 [if test x$is_release = x ; then
392 # Default to "yes" on development branches.
395 # Default to "no" on release branches.
398 if test x$enable_werror = xyes ; then
403 # Enable expensive internal checks
404 AC_ARG_ENABLE(checking,
405 [ --enable-checking[=LIST]
406 enable expensive run-time checks. With LIST,
407 enable only specific categories of checks.
408 Categories are: yes,no,all,none,release.
409 Flags are: assert,fold,gc,gcac,misc,
410 rtlflag,rtl,runtime,tree,valgrind.],
411 [ac_checking_flags="${enableval}"],[
412 # Determine the default checks.
413 if test x$is_release = x ; then
414 ac_checking_flags=yes
416 ac_checking_flags=release
422 ac_gc_always_collect=
425 ac_runtime_checking=1
427 ac_valgrind_checking=
428 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
429 for check in $ac_checking_flags
432 # these set all the flags to specific states
433 yes) ac_assert_checking=1 ; ac_checking=1 ;
434 ac_fold_checking= ; ac_gc_checking=1 ;
435 ac_gc_always_collect= ; ac_rtl_checking= ;
436 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
437 ac_tree_checking=1 ; ac_valgrind_checking= ;;
438 no|none) ac_assert_checking= ; ac_checking= ;
439 ac_fold_checking= ; ac_gc_checking= ;
440 ac_gc_always_collect= ; ac_rtl_checking= ;
441 ac_rtlflag_checking= ; ac_runtime_checking= ;
442 ac_tree_checking= ; ac_valgrind_checking= ;;
443 all) ac_assert_checking=1 ; ac_checking=1 ;
444 ac_fold_checking=1 ; ac_gc_checking=1 ;
445 ac_gc_always_collect=1 ; ac_rtl_checking=1 ;
446 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
447 ac_tree_checking=1 ; ac_valgrind_checking= ;;
448 release) ac_assert_checking=1 ; ac_checking= ;
449 ac_fold_checking= ; ac_gc_checking= ;
450 ac_gc_always_collect= ; ac_rtl_checking= ;
451 ac_rtlflag_checking= ; ac_runtime_checking=1 ;
452 ac_tree_checking= ; ac_valgrind_checking= ;;
453 # these enable particular checks
454 assert) ac_assert_checking=1 ;;
455 fold) ac_fold_checking=1 ;;
456 gc) ac_gc_checking=1 ;;
457 gcac) ac_gc_always_collect=1 ;;
458 misc) ac_checking=1 ;;
459 rtl) ac_rtl_checking=1 ;;
460 rtlflag) ac_rtlflag_checking=1 ;;
461 runtime) ac_runtime_checking=1 ;;
462 tree) ac_tree_checking=1 ;;
463 valgrind) ac_valgrind_checking=1 ;;
464 *) AC_MSG_ERROR(unknown check category $check) ;;
470 if test x$ac_checking != x ; then
471 AC_DEFINE(ENABLE_CHECKING, 1,
472 [Define if you want more run-time sanity checks. This one gets a grab
473 bag of miscellaneous but relatively cheap checks.])
474 nocommon_flag=-fno-common
476 AC_SUBST(nocommon_flag)
477 if test x$ac_assert_checking != x ; then
478 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
479 [Define if you want assertions enabled. This is a cheap check.])
481 GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING)
482 if test x$ac_runtime_checking != x ; then
483 AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
484 [Define if you want runtime assertions enabled. This is a cheap check.])
486 if test x$ac_tree_checking != x ; then
487 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
488 [Define if you want all operations on trees (the basic data
489 structure of the front ends) to be checked for dynamic type safety
490 at runtime. This is moderately expensive. The tree browser debugging
491 routines will also be enabled by this option.
493 TREEBROWSER=tree-browser.o
495 AC_SUBST(TREEBROWSER)
496 if test x$ac_rtl_checking != x ; then
497 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
498 [Define if you want all operations on RTL (the basic data structure
499 of the optimizer and back end) to be checked for dynamic type safety
500 at runtime. This is quite expensive.])
502 if test x$ac_rtlflag_checking != x ; then
503 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
504 [Define if you want RTL flag accesses to be checked against the RTL
505 codes that are supported for each access macro. This is relatively
508 if test x$ac_gc_checking != x ; then
509 AC_DEFINE(ENABLE_GC_CHECKING, 1,
510 [Define if you want the garbage collector to do object poisoning and
511 other memory allocation checks. This is quite expensive.])
513 if test x$ac_gc_always_collect != x ; then
514 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
515 [Define if you want the garbage collector to operate in maximally
516 paranoid mode, validating the entire heap and collecting garbage at
517 every opportunity. This is extremely expensive.])
519 if test x$ac_fold_checking != x ; then
520 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
521 [Define if you want fold checked that it never destructs its argument.
522 This is quite expensive.])
524 valgrind_path_defines=
527 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
528 dnl # an if statement. This was the source of very frustrating bugs
529 dnl # in converting to autoconf 2.5x!
530 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
532 if test x$ac_valgrind_checking != x ; then
533 # It is certainly possible that there's valgrind but no valgrind.h.
534 # GCC relies on making annotations so we must have both.
535 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
536 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
537 [[#include <valgrind/memcheck.h>
538 #ifndef VALGRIND_DISCARD
539 #error VALGRIND_DISCARD not defined
541 [gcc_cv_header_valgrind_memcheck_h=yes],
542 [gcc_cv_header_valgrind_memcheck_h=no])
543 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
544 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
545 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
546 [[#include <memcheck.h>
547 #ifndef VALGRIND_DISCARD
548 #error VALGRIND_DISCARD not defined
550 [gcc_cv_header_memcheck_h=yes],
551 [gcc_cv_header_memcheck_h=no])
552 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
553 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
554 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
555 if test "x$valgrind_path" = "x" \
556 || (test $have_valgrind_h = no \
557 && test $gcc_cv_header_memcheck_h = no \
558 && test $gcc_cv_header_valgrind_memcheck_h = no); then
559 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
561 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
562 valgrind_command="$valgrind_path -q"
563 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
564 [Define if you want to run subprograms and generated programs
565 through valgrind (a memory checker). This is extremely expensive.])
566 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
567 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
568 [Define if valgrind's valgrind/memcheck.h header is installed.])
570 if test $gcc_cv_header_memcheck_h = yes; then
571 AC_DEFINE(HAVE_MEMCHECK_H, 1,
572 [Define if valgrind's memcheck.h header is installed.])
575 AC_SUBST(valgrind_path_defines)
576 AC_SUBST(valgrind_command)
578 AC_ARG_ENABLE(mapped-location,
579 [ --enable-mapped-location location_t is fileline integer cookie],,
580 enable_mapped_location=no)
582 if test "$enable_mapped_location" = yes ; then
583 AC_DEFINE(USE_MAPPED_LOCATION, 1,
584 [Define if location_t is fileline integer cookie.])
587 # Enable code coverage collection
588 AC_ARG_ENABLE(coverage,
589 [ --enable-coverage[=LEVEL]
590 enable compiler's code coverage collection.
591 Use to measure compiler performance and locate
592 unused parts of the compiler. With LEVEL, specify
593 optimization. Values are opt, noopt,
595 [case "${enableval}" in
597 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
600 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
603 # a.k.a. --disable-coverage
607 AC_MSG_ERROR(unknown coverage setting $enableval)
611 AC_SUBST(coverage_flags)
613 AC_ARG_ENABLE(gather-detailed-mem-stats,
614 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
615 [enable_gather_detailed_mem_stats=no])
616 if test x$enable_gather_detailed_mem_stats = xyes ; then
617 AC_DEFINE(GATHER_STATISTICS, 1,
618 [Define to enable detailed memory allocation stats gathering.])
621 # -------------------------------
622 # Miscenalleous configure options
623 # -------------------------------
627 [ --with-stabs arrange to use stabs instead of host debug format],
631 # Determine whether or not multilibs are enabled.
632 AC_ARG_ENABLE(multilib,
633 [ --enable-multilib enable library support for multiple ABIs],
634 [], [enable_multilib=yes])
635 AC_SUBST(enable_multilib)
637 # Enable __cxa_atexit for C++.
638 AC_ARG_ENABLE(__cxa_atexit,
639 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
642 # Enable C extension for decimal float if target supports it.
643 AC_ARG_ENABLE(decimal-float,
644 [ --enable-decimal-float enable decimal float extension to C],
646 if test x$enablevar = xyes ; then
648 powerpc*-*-linux* | i?86*-*-linux*)
651 AC_MSG_WARN(decimal float is not supported for this target, ignored)
652 enable_decimal_float=no
660 enable_decimal_float=yes
663 enable_decimal_float=no
668 AC_SUBST(enable_decimal_float)
670 dfp=`if test $enable_decimal_float = yes; then echo 1; else echo 0; fi`
671 AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp,
672 [Define to 1 to enable decimal float extension to C.])
675 # Pass with no value to take the default
676 # Pass with a value to specify a thread package
677 AC_ARG_ENABLE(threads,
678 [ --enable-threads enable thread usage for target GCC
679 --enable-threads=LIB use LIB thread package for target GCC],,
683 [ --enable-tls enable or disable generation of tls code
684 overriding the assembler check for tls support],
688 *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls.
689 Valid choices are 'yes' and 'no'.]) ;;
693 AC_ARG_ENABLE(objc-gc,
694 [ --enable-objc-gc enable the use of Boehm's garbage collector with
695 the GNU Objective-C runtime],
696 if test x$enable_objc_gc = xno; then
704 [ --with-dwarf2 force the default debug format to be DWARF 2],
705 dwarf2="$with_dwarf2",
708 AC_ARG_ENABLE(shared,
709 [ --disable-shared don't provide a shared libgcc],
711 case $enable_shared in
715 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
716 for pkg in $enableval; do
717 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
724 ], [enable_shared=yes])
725 AC_SUBST(enable_shared)
727 AC_ARG_WITH(build-sysroot,
728 [ --with-build-sysroot=sysroot
729 use sysroot as the system root during the build])
732 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
734 case ${with_sysroot} in
735 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
736 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
739 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
740 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
742 if test "x$exec_prefix" = xNONE; then
743 if test "x$prefix" = xNONE; then
744 test_prefix=/usr/local
749 test_prefix=$exec_prefix
751 case ${TARGET_SYSTEM_ROOT} in
752 "${test_prefix}"|"${test_prefix}/"*|\
753 '${exec_prefix}'|'${exec_prefix}/'*)
754 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
755 TARGET_SYSTEM_ROOT_DEFINE="$t"
760 TARGET_SYSTEM_ROOT_DEFINE=
761 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
763 AC_SUBST(TARGET_SYSTEM_ROOT)
764 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
765 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
767 # Build with intermodule optimisations
768 AC_ARG_ENABLE(intermodule,
769 [ --enable-intermodule build the compiler in one step],
770 [case ${enable_intermodule} in
771 yes) onestep="-onestep";;
777 # Sanity check enable_languages in case someone does not run the toplevel
778 # configure # script.
779 AC_ARG_ENABLE(languages,
780 [ --enable-languages=LIST specify which front-ends to build],
781 [case ,${enable_languages}, in
783 # go safe -- we cannot be much sure without the toplevel
785 # analysis of which target libs are present and usable
789 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
794 enable_languages=c,${enable_languages}
797 [enable_languages=c])
800 for lang in ${srcdir}/*/config-lang.in
803 # The odd quoting in the next line works around
804 # an apparent bug in bash 1.12 on linux.
806 ${srcdir}/[*]/config-lang.in) ;;
808 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
809 if test "x$lang_alias" = x
811 echo "$lang doesn't set \$language." 1>&2
814 case ",$enable_languages," in
816 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
824 # -------------------------
825 # Checks for other programs
826 # -------------------------
830 # Find some useful tools
832 # We need awk to create options.c and options.h.
833 # Bail out if it's missing.
835 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
843 # By default, the Darwin ranlib will not treat common symbols as
844 # definitions when building the archive table of contents. Other
845 # ranlibs do that; pass an option to the Darwin ranlib that makes
846 # it behave similarly.
852 AC_SUBST(ranlib_flags)
856 # See if cmp has --ignore-initial.
857 gcc_AC_PROG_CMP_IGNORE_INITIAL
859 # See if we have the mktemp command.
860 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
862 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
864 # See if makeinfo has been installed and is modern enough
865 # that we can use it.
866 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
867 [GNU texinfo.* \([0-9][0-9.]*\)],
869 if test $gcc_cv_prog_makeinfo_modern = no; then
870 MAKEINFO="$MISSING makeinfo"
872 *** Makeinfo is missing or too old.
873 *** Info documentation will not be built.])
880 # Is pod2man recent enough to regenerate manpages?
881 AC_MSG_CHECKING([for recent Pod::Man])
882 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
884 GENERATED_MANPAGES=generated-manpages
889 AC_SUBST(GENERATED_MANPAGES)
892 dnl Don't use AC_PROG_LEX; we insist on flex.
893 dnl LEXLIB is not useful in gcc.
894 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
897 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
899 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
900 # check for build == host before using them.
903 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
904 && test -d ../binutils ; then
905 NM='$(objdir)/../binutils/nm-new'
907 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
911 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
912 && test -d ../binutils ; then
913 AR='$(objdir)/../binutils/ar'
915 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
919 # --------------------
920 # Checks for C headers
921 # --------------------
923 AC_MSG_CHECKING(for GNU C library)
924 AC_CACHE_VAL(gcc_cv_glibc,
925 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
926 [[#include <features.h>]], [[
927 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
928 #error Not a GNU C library system
932 AC_MSG_RESULT($gcc_cv_glibc)
933 if test $gcc_cv_glibc = yes; then
934 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
937 # Need to reject headers which give warnings, so that the -Werror bootstrap
938 # works later. *sigh* This needs to come before all header checks.
945 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
946 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
947 sys/resource.h sys/param.h sys/times.h sys/stat.h \
948 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
950 # Check for thread headers.
951 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
952 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
954 # These tests can't be done till we know if we have limits.h.
962 # Stage specific cflags for build.
968 stage1_cflags="-Wa,-J"
974 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
975 # sources; use -no-cpp-precomp to get to GNU cpp.
976 # Apple's GCC has bugs in designated initializer handling, so disable
978 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
981 AC_SUBST(stage1_cflags)
983 # These libraries may be used by collect2.
984 # We may need a special search path to get them linked.
985 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
987 for libs in '' -lld -lmld \
988 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
989 '-L/usr/lib/cmplrs/cc3.11 -lmld'
992 AC_TRY_LINK_FUNC(ldopen,
993 [gcc_cv_collect2_libs="$libs"; break])
996 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
997 case $gcc_cv_collect2_libs in
999 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
1001 AC_SUBST(COLLECT2_LIBS)
1003 # When building Ada code on Alpha, we need exc_resume which is usually in
1004 # -lexc. So test for it.
1007 AC_SEARCH_LIBS(exc_resume, exc)
1010 AC_SUBST(GNAT_LIBEXC)
1012 # Some systems put ldexp and frexp in libm instead of libc; assume
1013 # they're both in the same place. jcf-dump needs them.
1016 AC_SEARCH_LIBS(ldexp, m)
1021 # Use <inttypes.h> only if it exists,
1022 # doesn't clash with <sys/types.h>, and declares intmax_t.
1023 AC_MSG_CHECKING(for inttypes.h)
1024 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
1025 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1026 [[#include <sys/types.h>
1027 #include <inttypes.h>]],
1028 [[intmax_t i = -1;]])],
1029 [gcc_cv_header_inttypes_h=yes],
1030 [gcc_cv_header_inttypes_h=no])])
1031 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
1032 if test $gcc_cv_header_inttypes_h = yes; then
1033 AC_DEFINE(HAVE_INTTYPES_H, 1,
1034 [Define if you have a working <inttypes.h> header file.])
1037 dnl Disabled until we have a complete test for buggy enum bitfields.
1038 dnl gcc_AC_C_ENUM_BF_UNSIGNED
1040 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
1041 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
1042 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
1043 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
1044 putchar_unlocked putc_unlocked)
1045 AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
1046 sysconf strsignal getrusage nl_langinfo scandir alphasort \
1047 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
1050 if test x$ac_cv_func_mbstowcs = xyes; then
1051 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
1052 [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
1058 [gcc_cv_func_mbstowcs_works=yes],
1059 [gcc_cv_func_mbstowcs_works=no],
1060 [gcc_cv_func_mbstowcs_works=yes])])
1061 if test x$gcc_cv_func_mbstowcs_works = xyes; then
1062 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1063 [Define this macro if mbstowcs does not crash when its
1064 first argument is NULL.])
1068 AC_CHECK_TYPE(ssize_t, int)
1070 # Try to determine the array type of the second argument of getgroups
1071 # for the target system (int or gid_t).
1073 if test "${target}" = "${build}"; then
1074 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
1077 # This condition may need some tweaking. It should include all
1078 # targets where the array type of the second argument of getgroups
1079 # is int and the type of gid_t is not equivalent to int.
1080 *-*-sunos* | *-*-ultrix*)
1081 TARGET_GETGROUPS_T=int
1084 TARGET_GETGROUPS_T=gid_t
1088 AC_SUBST(TARGET_GETGROUPS_T)
1090 gcc_AC_FUNC_MMAP_BLACKLIST
1094 # Under VMS, vfork works very differently than on Unix. The standard test
1095 # won't work, and it isn't easily adaptable. It makes more sense to
1097 ac_cv_func_vfork_works=yes
1103 # Until we have in-tree GNU iconv:
1105 AC_SUBST(LIBICONV_DEP)
1111 # We will need to find libiberty.h and ansidecl.h
1112 saved_CFLAGS="$CFLAGS"
1113 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1114 gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
1115 strsignal strstr strverscmp \
1116 errno snprintf vsnprintf vasprintf malloc realloc calloc \
1117 free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1118 #include "ansidecl.h"
1119 #include "system.h"])
1121 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1122 #include "ansidecl.h"
1124 #ifdef HAVE_SYS_RESOURCE_H
1125 #include <sys/resource.h>
1129 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1130 #include "ansidecl.h"
1132 #ifdef HAVE_SYS_RESOURCE_H
1133 #include <sys/resource.h>
1135 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
1136 [Define to \`long' if <sys/resource.h> doesn't define.])])
1138 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1139 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1140 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1141 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1142 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1143 #include "ansidecl.h"
1152 gcc_AC_CHECK_DECLS(times, , ,[
1153 #include "ansidecl.h"
1155 #ifdef HAVE_SYS_TIMES_H
1156 #include <sys/times.h>
1160 # More time-related stuff.
1161 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1162 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1163 #include "ansidecl.h"
1165 #ifdef HAVE_SYS_TIMES_H
1166 #include <sys/times.h>
1168 ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
1169 if test $ac_cv_struct_tms = yes; then
1170 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1171 [Define if <sys/times.h> defines struct tms.])
1174 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1175 # revisit after autoconf 2.50.
1176 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1177 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1178 #include "ansidecl.h"
1180 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
1181 if test $gcc_cv_type_clock_t = yes; then
1182 AC_DEFINE(HAVE_CLOCK_T, 1,
1183 [Define if <time.h> defines clock_t.])
1186 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1187 CFLAGS="$saved_CFLAGS"
1189 gcc_AC_INITFINI_ARRAY
1191 # mkdir takes a single argument on some systems.
1192 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1200 # With Setjmp/Longjmp based exception handling.
1201 AC_ARG_ENABLE(sjlj-exceptions,
1202 [ --enable-sjlj-exceptions
1203 arrange to use setjmp/longjmp exception handling],
1204 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1205 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1206 [Define 0/1 to force the choice for exception handling model.])])
1208 # For platforms with the unwind ABI which includes an unwind library,
1209 # libunwind, we can choose to use the system libunwind.
1210 AC_ARG_WITH(system-libunwind,
1211 [ --with-system-libunwind use installed libunwind])
1213 # --------------------------------------------------------
1214 # Build, host, and target specific configuration fragments
1215 # --------------------------------------------------------
1217 # Collect build-machine-specific information.
1218 . ${srcdir}/config.build
1220 # Collect host-machine-specific information.
1221 . ${srcdir}/config.host
1225 # Collect target-machine-specific information.
1226 . ${srcdir}/config.gcc
1228 extra_objs="${host_extra_objs} ${extra_objs}"
1229 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1231 # Default the target-machine variables that were not explicitly set.
1232 if test x"$tm_file" = x
1233 then tm_file=$cpu_type/$cpu_type.h; fi
1235 if test x"$extra_headers" = x
1236 then extra_headers=; fi
1238 if test x$md_file = x
1239 then md_file=$cpu_type/$cpu_type.md; fi
1241 if test x$out_file = x
1242 then out_file=$cpu_type/$cpu_type.c; fi
1244 if test x"$tmake_file" = x
1245 then tmake_file=$cpu_type/t-$cpu_type
1248 if test x"$dwarf2" = xyes
1249 then tm_file="$tm_file tm-dwarf2.h"
1252 # Say what files are being used for the output code and MD file.
1253 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1254 echo "Using \`$srcdir/config/$md_file' as machine description file."
1256 # If any of the xm_file variables contain nonexistent files, warn
1257 # about them and drop them.
1260 for x in $build_xm_file; do
1261 if test -f $srcdir/config/$x
1263 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1269 for x in $host_xm_file; do
1270 if test -f $srcdir/config/$x
1272 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1278 for x in $xm_file; do
1279 if test -f $srcdir/config/$x
1281 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1287 for f in $tm_file; do
1290 if test $count = ax; then
1291 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1293 echo "Using the following target machine macro files:"
1294 for f in $tm_file; do
1295 echo " $srcdir/config/$f"
1299 if test x$need_64bit_hwint = xyes; then
1300 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1301 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1304 if test x$use_long_long_for_widest_fast_int = xyes; then
1305 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1306 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1307 efficiently supported by the host hardware.])
1311 for f in $host_xm_file; do
1314 if test $count = a; then
1316 elif test $count = ax; then
1317 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1319 echo "Using the following host machine macro files:"
1320 for f in $host_xm_file; do
1321 echo " $srcdir/config/$f"
1324 echo "Using ${out_host_hook_obj} for host machine hooks."
1326 if test "$host_xm_file" != "$build_xm_file"; then
1328 for f in $build_xm_file; do
1331 if test $count = a; then
1333 elif test $count = ax; then
1334 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1336 echo "Using the following build machine macro files:"
1337 for f in $build_xm_file; do
1338 echo " $srcdir/config/$f"
1347 # Check if a valid thread package
1348 case ${enable_threads} in
1351 target_thread_file='single'
1355 target_thread_file='single'
1357 aix | dce | gnat | irix | posix | posix95 | rtems | \
1358 single | solaris | vxworks | win32 )
1359 target_thread_file=${enable_threads}
1362 echo "${enable_threads} is an unknown thread package" 1>&2
1367 if test x${thread_file} = x; then
1368 # No thread file set by target-specific clauses in config.gcc,
1369 # so use file chosen by default logic above
1370 thread_file=${target_thread_file}
1373 # Make gthr-default.h if we have a thread file.
1375 if test $thread_file != single; then
1376 rm -f gthr-default.h
1377 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1378 gthread_flags=-DHAVE_GTHR_DEFAULT
1380 AC_SUBST(gthread_flags)
1387 if test x$enable___cxa_atexit = xyes || \
1388 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1389 if test x$host = x$target; then
1390 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1391 [echo "__cxa_atexit can't be enabled on this target"])
1393 # We can't check for __cxa_atexit when building a cross, so assume
1397 if test x$use_cxa_atexit = xyes; then
1398 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1399 [Define if you want to use __cxa_atexit, rather than atexit, to
1400 register C++ destructors for local statics and global objects.
1401 This is essential for fully standards-compliant handling of
1402 destructors, but requires __cxa_atexit in libc.])
1406 # Look for a file containing extra machine modes.
1407 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1408 extra_modes_file='$(srcdir)'/config/${extra_modes}
1409 AC_SUBST(extra_modes_file)
1410 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1411 [Define to the name of a file containing a list of extra machine modes
1412 for this architecture.])
1415 # Convert extra_options into a form suitable for Makefile use.
1417 for f in $extra_options; do
1418 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1420 AC_SUBST(extra_opt_files)
1422 # auto-host.h is the file containing items generated by autoconf and is
1423 # the first file included by config.h.
1424 # If host=build, it is correct to have bconfig include auto-host.h
1425 # as well. If host!=build, we are in error and need to do more
1426 # work to find out the build config parameters.
1427 if test x$host = x$build
1429 build_auto=auto-host.h
1431 # We create a subdir, then run autoconf in the subdir.
1432 # To prevent recursion we set host and build for the new
1433 # invocation of configure to the build for this invocation
1440 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1441 *) realsrcdir=../${srcdir};;
1443 saved_CFLAGS="${CFLAGS}"
1444 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1445 ${realsrcdir}/configure \
1446 --enable-languages=${enable_languages-all} \
1447 --target=$target_alias --host=$build_alias --build=$build_alias
1448 CFLAGS="${saved_CFLAGS}"
1450 # We just finished tests for the build machine, so rename
1451 # the file auto-build.h in the gcc directory.
1452 mv auto-host.h ../auto-build.h
1455 build_auto=auto-build.h
1457 AC_SUBST(build_subdir)
1459 tm_file="${tm_file} defaults.h"
1460 tm_p_file="${tm_p_file} tm-preds.h"
1461 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1462 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1463 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1464 # put this back in temporarily.
1465 xm_file="auto-host.h ansidecl.h ${xm_file}"
1472 # Compile in configure arguments.
1473 if test -f configargs.h ; then
1474 # Being re-configured.
1475 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1476 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1478 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1481 # Double all backslashes and backslash all quotes to turn
1482 # gcc_config_arguments into a C string.
1483 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1484 $gcc_config_arguments
1486 gcc_config_arguments_str=`cat conftest.out`
1489 cat > configargs.h <<EOF
1490 /* Generated automatically. */
1491 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1492 static const char thread_model[] = "$thread_file";
1494 static const struct {
1495 const char *name, *value;
1496 } configure_default_options[] = $configure_default_options;
1500 # Internationalization
1501 ZW_GNU_GETTEXT_SISTER_DIR
1503 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1504 # -liconv on the link line twice.
1505 case "$LIBINTL" in *$LIBICONV*)
1509 AC_ARG_ENABLE(secureplt,
1510 [ --enable-secureplt enable -msecure-plt by default for PowerPC],
1513 # Windows32 Registry support for specifying GCC installation paths.
1514 AC_ARG_ENABLE(win32-registry,
1515 [ --disable-win32-registry
1516 disable lookup of installation paths in the
1517 Registry on Windows hosts
1518 --enable-win32-registry enable registry lookup (default)
1519 --enable-win32-registry=KEY
1520 use KEY instead of GCC version as the last portion
1521 of the registry key],,)
1524 win32 | pe | cygwin* | mingw32* | uwin*)
1525 if test "x$enable_win32_registry" != xno; then
1526 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1529 if test "x$enable_win32_registry" != xno; then
1530 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1531 [Define to 1 if installation paths should be looked up in the Windows
1532 Registry. Ignored on non-Windows hosts.])
1534 if test "x$enable_win32_registry" != xyes \
1535 && test "x$enable_win32_registry" != x; then
1536 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1537 [Define to be the last component of the Windows registry key under which
1538 to look for installation paths. The full key used will be
1539 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1540 The default is the GCC version number.])
1546 # Get an absolute path to the GCC top-level source directory
1547 holddir=`${PWDCMD-pwd}`
1549 topdir=`${PWDCMD-pwd}`
1552 # Conditionalize the makefile for this host machine.
1554 for f in ${host_xmake_file}
1556 if test -f ${srcdir}/config/$f
1558 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1562 # Conditionalize the makefile for this target machine.
1564 for f in ${tmake_file}
1566 if test -f ${srcdir}/config/$f
1568 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1571 tmake_file="${tmake_file_}"
1573 # If the host doesn't support symlinks, modify CC in
1574 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1575 # Otherwise, we can use "CC=$(CC)".
1579 cc_set_by_configure="\$(CC)"
1580 quoted_cc_set_by_configure="\$(CC)"
1581 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1582 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1585 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1586 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1587 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1588 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1592 # This is a terrible hack which will go away some day.
1593 host_cc_for_libada=${CC}
1594 AC_SUBST(host_cc_for_libada)
1596 out_object_file=`basename $out_file .c`.o
1598 tm_file_list="options.h"
1599 tm_include_list="options.h"
1600 for f in $tm_file; do
1603 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1604 tm_include_list="${tm_include_list} $f"
1607 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1608 tm_include_list="${tm_include_list} config/$f"
1615 for f in $tm_p_file; do
1618 tm_p_file_list="${tm_p_file_list} $f"
1619 tm_p_include_list="${tm_p_include_list} $f"
1622 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1623 tm_p_include_list="${tm_p_include_list} config/$f"
1629 for f in $xm_file; do
1632 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1633 xm_include_list="${xm_include_list} $f"
1636 xm_file_list="${xm_file_list} $f"
1637 xm_include_list="${xm_include_list} $f"
1640 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1641 xm_include_list="${xm_include_list} config/$f"
1647 host_xm_include_list=
1648 for f in $host_xm_file; do
1651 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1652 host_xm_include_list="${host_xm_include_list} $f"
1655 host_xm_file_list="${host_xm_file_list} $f"
1656 host_xm_include_list="${host_xm_include_list} $f"
1659 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1660 host_xm_include_list="${host_xm_include_list} config/$f"
1666 for f in $build_xm_file; do
1669 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1670 build_xm_include_list="${build_xm_include_list} $f"
1672 auto-build.h | auto-host.h )
1673 build_xm_file_list="${build_xm_file_list} $f"
1674 build_xm_include_list="${build_xm_include_list} $f"
1677 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1678 build_xm_include_list="${build_xm_include_list} config/$f"
1683 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1684 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1685 CROSS= AC_SUBST(CROSS)
1686 ALL=all.internal AC_SUBST(ALL)
1687 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1689 if test "x$with_build_sysroot" != x; then
1690 build_system_header_dir=$with_build_sysroot'$(NATIVE_SYSTEM_HEADER_DIR)'
1692 # This value is used, even on a native system, because
1693 # CROSS_SYSTEM_HEADER_DIR is just
1694 # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
1695 build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
1698 if test x$host != x$target
1700 CROSS="-DCROSS_COMPILE"
1702 SYSTEM_HEADER_DIR=$build_system_header_dir
1703 case "$host","$target" in
1704 # Darwin crosses can use the host system's libraries and headers,
1705 # because of the fat library support. Of course, it must be the
1706 # same version of Darwin on both sides. Allow the user to
1707 # just say --target=foo-darwin without a version number to mean
1708 # "the version on this system".
1709 *-*-darwin*,*-*-darwin*)
1710 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1711 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1712 if test $hostos = $targetos -o $targetos = darwin ; then
1714 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1719 i?86-*-*,x86_64-*-* \
1720 | powerpc*-*-*,powerpc64*-*-*)
1721 CROSS="$CROSS -DNATIVE_CROSS" ;;
1723 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1724 SYSTEM_HEADER_DIR=$build_system_header_dir
1727 # If this is a cross-compiler that does not
1728 # have its own set of headers then define
1731 # If this is using newlib, without having the headers available now,
1732 # then define inhibit_libc in LIBGCC2_CFLAGS.
1733 # This prevents libgcc2 from containing any code which requires libc
1736 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1737 test x$with_newlib = xyes ; } &&
1738 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1741 AC_SUBST(inhibit_libc)
1743 # When building gcc with a cross-compiler, we need to adjust things so
1744 # that the generator programs are still built with the native compiler.
1745 # Also, we cannot run fixincludes or fix-header.
1747 # These are the normal (build=host) settings:
1748 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1749 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1750 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1752 # Possibly disable fixproto, on a per-target basis.
1753 case ${use_fixproto} in
1758 STMP_FIXPROTO=stmp-fixproto
1761 AC_SUBST(STMP_FIXPROTO)
1763 # And these apply if build != host, or we are generating coverage data
1764 if test x$build != x$host || test "x$coverage_flags" != x
1766 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1768 if test "x$TARGET_SYSTEM_ROOT" = x; then
1769 if test "x$STMP_FIXPROTO" != x; then
1770 STMP_FIXPROTO=stmp-install-fixproto
1775 # Expand extra_headers to include complete path.
1776 # This substitutes for lots of t-* files.
1778 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1779 for file in ${extra_headers} ; do
1780 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1783 # Define collect2 in Makefile.
1784 case $host_can_use_collect2 in
1786 *) collect2='collect2$(exeext)' ;;
1788 AC_SUBST([collect2])
1790 # Add a definition of USE_COLLECT2 if system wants one.
1791 case $use_collect2 in
1792 no) use_collect2= ;;
1795 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1796 xm_defines="${xm_defines} USE_COLLECT2"
1797 case $host_can_use_collect2 in
1799 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1805 # ---------------------------
1806 # Assembler & linker features
1807 # ---------------------------
1809 # Identify the assembler which will work hand-in-glove with the newly
1810 # built GCC, so that we can examine its features. This is the assembler
1811 # which will be driven by the driver program.
1813 # If build != host, and we aren't building gas in-tree, we identify a
1814 # build->target assembler and hope that it will have the same features
1815 # as the host->target assembler we'll be using.
1818 gcc_cv_gas_major_version=
1819 gcc_cv_gas_minor_version=
1820 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1821 if test -x "$DEFAULT_ASSEMBLER"; then
1822 gcc_cv_as="$DEFAULT_ASSEMBLER"
1823 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1824 && test -f ../gas/Makefile \
1825 && test x$build = x$host; then
1826 # Single tree build which includes gas. We want to prefer it
1827 # over whatever linker top-level may have detected, since
1828 # we'll use what we're building after installation anyway.
1830 _gcc_COMPUTE_GAS_VERSION
1831 gcc_cv_as=../gas/as-new$build_exeext
1832 in_tree_gas_is_elf=no
1833 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1834 || (grep 'obj_format = multi' ../gas/Makefile \
1835 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1837 in_tree_gas_is_elf=yes
1839 m4_pattern_allow([AS_FOR_TARGET])dnl
1840 elif test -x as$build_exeext; then
1841 # Build using assembler in the current directory.
1842 gcc_cv_as=./as$build_exeext
1845 gcc_AC_CHECK_TOOL(gcc_cv_as, as, ORIGINAL_AS_FOR_TARGET, AS_FOR_TARGET, AS)
1846 AC_MSG_CHECKING(what assembler to use)
1847 case $in_tree_gas in
1849 AC_MSG_RESULT("newly built gas")
1852 AC_MSG_RESULT($gcc_cv_as)
1856 # Identify the linker which will work hand-in-glove with the newly
1857 # built GCC, so that we can examine its features. This is the linker
1858 # which will be driven by the driver program.
1860 # If build != host, and we aren't building gas in-tree, we identify a
1861 # build->target linker and hope that it will have the same features
1862 # as the host->target linker we'll be using.
1865 gcc_cv_gld_major_version=
1866 gcc_cv_gld_minor_version=
1867 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1868 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1869 if test -x "$DEFAULT_LINKER"; then
1870 gcc_cv_ld="$DEFAULT_LINKER"
1871 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1872 && test -f ../ld/Makefile \
1873 && test x$build = x$host; then
1874 # Single tree build which includes ld. We want to prefer it
1875 # over whatever linker top-level may have detected, since
1876 # we'll use what we're building after installation anyway.
1878 in_tree_ld_is_elf=no
1879 if (grep 'EMUL = .*elf' ../ld/Makefile \
1880 || grep 'EMUL = .*linux' ../ld/Makefile \
1881 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1882 in_tree_ld_is_elf=yes
1884 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
1887 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1889 if test x$gcc_cv_gld_version != x; then
1894 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1895 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1897 gcc_cv_ld=../ld/ld-new$build_exeext
1898 elif test -x collect-ld$build_exeext; then
1899 # Build using linker in the current directory.
1900 gcc_cv_ld=./collect-ld$build_exeext
1903 gcc_AC_CHECK_TOOL(gcc_cv_ld, ld, ORIGINAL_LD_FOR_TARGET, LD_FOR_TARGET, LD)
1904 AC_MSG_CHECKING(what linker to use)
1907 AC_MSG_RESULT("newly built ld")
1910 AC_MSG_RESULT($gcc_cv_ld)
1914 # Figure out what nm we will be using.
1915 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1918 if test -f $gcc_cv_binutils_srcdir/configure.in \
1919 && test -f ../binutils/Makefile; then
1920 # Single tree build which includes binutils.
1922 gcc_cv_nm=../binutils/nm-new$build_exeext
1923 elif test -x nm$build_exeext; then
1924 gcc_cv_nm=./nm$build_exeext
1927 gcc_AC_CHECK_TOOL(gcc_cv_nm, nm, ORIGINAL_NM_FOR_TARGET, NM_FOR_TARGET, NM)
1928 AC_MSG_CHECKING(what nm to use)
1930 yes) AC_MSG_RESULT("newly built nm") ;;
1931 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1934 # Figure out what objdump we will be using.
1937 if test -f $gcc_cv_binutils_srcdir/configure.in \
1938 && test -f ../binutils/Makefile; then
1939 # Single tree build which includes binutils.
1941 gcc_cv_objdump=../binutils/objdump$build_exeext
1942 elif test -x objdump$build_exeext; then
1943 gcc_cv_objdump=./objdump$build_exeext
1946 gcc_AC_CHECK_TOOL(gcc_cv_objdump, objdump, ORIGINAL_OBJDUMP_FOR_TARGET,
1947 OBJDUMP_FOR_TARGET, OBJDUMP)
1948 AC_MSG_CHECKING(what objdump to use)
1949 case $in_tree_objdump in
1950 yes) AC_MSG_RESULT("newly built objdump") ;;
1951 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1954 # Figure out what assembler alignment features are present.
1955 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1959 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1960 [Define if your assembler supports .balign and .p2align.])])
1962 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1965 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1966 [Define if your assembler supports specifying the maximum number
1967 of bytes to skip when using the GAS .p2align command.])])
1969 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1971 [conftest_label1: .word 0
1973 conftest_label2: .word 0
1975 [if test x$gcc_cv_nm != x; then
1976 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1977 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1978 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1980 else gcc_cv_as_subsection_m1=yes
1982 rm -f conftest.nm1 conftest.nm2
1984 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1985 [Define if your assembler supports .subsection and .subsection -1 starts
1986 emitting at the beginning of your section.])])
1988 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1991 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1993 gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,
1995 [ .weakref foobar, barfnot],,
1996 [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])])
1998 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2001 .NSUBSPA $CODE$,COMDAT],,
2002 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2004 # .hidden needs to be supported in both the assembler and the linker,
2005 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2006 # This is irritatingly difficult to feature test for; we have to check the
2007 # date string after the version number. If we've got an in-tree
2008 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2010 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2011 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2016 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2017 [if test $in_tree_ld = yes ; then
2019 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2020 && test $in_tree_ld_is_elf = yes; then
2021 gcc_cv_ld_hidden=yes
2024 gcc_cv_ld_hidden=yes
2025 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2026 if echo "$ld_ver" | grep GNU > /dev/null; then
2028 ld_vers=`echo $ld_ver | sed -n \
2029 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2030 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2031 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2032 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2033 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2034 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2035 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2036 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2037 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2038 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2039 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2040 if test 0"$ld_date" -lt 20020404; then
2041 if test -n "$ld_date"; then
2042 # If there was date string, but was earlier than 2002-04-04, fail
2044 elif test -z "$ld_vers"; then
2045 # If there was no date string nor ld version number, something is wrong
2048 test -z "$ld_vers_patch" && ld_vers_patch=0
2049 if test "$ld_vers_major" -lt 2; then
2051 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2052 gcc_cv_ld_hidden="no"
2053 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2061 hppa64*-*-hpux* | ia64*-*-hpux*)
2062 gcc_cv_ld_hidden=yes
2070 libgcc_visibility=no
2071 AC_SUBST(libgcc_visibility)
2072 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2073 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2074 libgcc_visibility=yes
2075 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2076 [Define if your assembler and linker support .hidden.])
2079 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2080 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2088 [# GAS versions before 2.11 do not support uleb128,
2089 # despite appearing to.
2090 # ??? There exists an elf-specific test that will crash
2091 # the assembler. Perhaps it's better to figure out whether
2092 # arbitrary sections are supported and try the test.
2093 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2094 if echo "$as_ver" | grep GNU > /dev/null; then
2096 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2097 as_major=`echo $as_ver | sed 's/\..*//'`
2098 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2100 if test $as_major -eq 2 && test $as_minor -lt 11
2102 else gcc_cv_as_leb128=yes
2105 [AC_DEFINE(HAVE_AS_LEB128, 1,
2106 [Define if your assembler supports .sleb128 and .uleb128.])])
2108 # GAS versions up to and including 2.11.0 may mis-optimize
2110 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2118 .section .eh_frame,"aw",@progbits
2120 .4byte .LECIE1-.LSCIE1
2134 .4byte .LEFDE1-.LASFDE1
2136 .4byte .LASFDE1-__FRAME_BEGIN__
2144 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2145 cat > conftest.lit <<EOF
2146 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2147 0010 01000000 12000000 18000000 00000000 ................
2148 0020 08000000 04080000 0044 .........D @&t@
2150 cat > conftest.big <<EOF
2151 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2152 0010 00000001 00000012 00000018 00000000 ................
2153 0020 00000008 04000000 0844 .........D @&t@
2155 # If the assembler didn't choke, and we can objdump,
2156 # and we got the correct data, then succeed.
2157 if test x$gcc_cv_objdump != x \
2158 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2159 | tail -3 > conftest.got \
2160 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2161 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2163 gcc_cv_as_eh_frame=yes
2164 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2165 gcc_cv_as_eh_frame=buggy
2167 # Uh oh, what do we do now?
2168 gcc_cv_as_eh_frame=no
2171 if test $gcc_cv_as_eh_frame = buggy; then
2172 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2173 [Define if your assembler mis-optimizes .eh_frame data.])
2176 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2177 [elf,2,12,0], [--fatal-warnings],
2178 [.section .rodata.str, "aMS", @progbits, 1])
2179 if test $gcc_cv_as_shf_merge = no; then
2180 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2181 [elf,2,12,0], [--fatal-warnings],
2182 [.section .rodata.str, "aMS", %progbits, 1])
2184 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2185 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2186 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2188 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2189 [elf,2,16,0], [--fatal-warnings],
2190 [.section .text,"axG",@progbits,.foo,comdat])
2191 if test $gcc_cv_as_comdat_group = yes; then
2192 gcc_cv_as_comdat_group_percent=no
2194 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2195 [elf,2,16,0], [--fatal-warnings],
2196 [.section .text,"axG",%progbits,.foo,comdat])
2198 if test $in_tree_ld != yes && test x"$ld_vers" != x; then
2200 if test 0"$ld_date" -lt 20050308; then
2201 if test -n "$ld_date"; then
2202 # If there was date string, but was earlier than 2005-03-08, fail
2204 elif test "$ld_vers_major" -lt 2; then
2206 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2210 if test $comdat_group = no; then
2211 gcc_cv_as_comdat_group=no
2212 gcc_cv_as_comdat_group_percent=no
2215 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
2216 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2217 [Define 0/1 if your assembler and linker support COMDAT groups.])
2219 # Thread-local storage - the check is heavily parametrized.
2228 .section ".tdata","awT",@progbits
2231 ldq $27,__tls_get_addr($29) !literal!1
2232 lda $16,foo($29) !tlsgd!1
2233 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2234 ldq $27,__tls_get_addr($29) !literal!2
2235 lda $16,foo($29) !tlsldm!2
2236 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2237 ldq $1,foo($29) !gotdtprel
2238 ldah $2,foo($29) !dtprelhi
2239 lda $3,foo($2) !dtprello
2240 lda $4,foo($29) !dtprel
2241 ldq $1,foo($29) !gottprel
2242 ldah $2,foo($29) !tprelhi
2243 lda $3,foo($2) !tprello
2244 lda $4,foo($29) !tprel'
2247 tls_as_opt=--fatal-warnings
2251 .section ".tdata","awT",@progbits
2263 .section ".tdata","awT",@progbits
2267 addil LT%foo-$tls_gdidx$,gp
2268 ldo RT%foo-$tls_gdidx$(%r1),%arg0
2271 addil LT%foo-$tls_ldidx$,gp
2273 ldo RT%foo-$tls_ldidx$(%r1),%arg0
2274 addil LR%foo-$tls_dtpoff$,%ret0
2275 ldo RR%foo-$tls_dtpoff$(%r1),%t1
2277 addil LT%foo-$tls_ieoff$,gp
2278 ldw RT%foo-$tls_ieoff$(%r1),%t2
2281 addil LR%foo-$tls_leoff$,%t1
2282 ldo RR%foo-$tls_leoff$(%r1),%t2'
2285 tls_as_opt=--fatal-warnings
2289 .section ".tdata","awT",%progbits
2302 .section ".tdata","awT",@progbits
2306 leal foo@TLSGD(,%ebx,1), %eax
2307 leal foo@TLSLDM(%ebx), %eax
2308 leal foo@DTPOFF(%eax), %edx
2309 movl foo@GOTTPOFF(%ebx), %eax
2310 subl foo@GOTTPOFF(%ebx), %eax
2311 addl foo@GOTNTPOFF(%ebx), %eax
2312 movl foo@INDNTPOFF, %eax
2313 movl $foo@TPOFF, %eax
2314 subl $foo@TPOFF, %eax
2315 leal foo@NTPOFF(%ecx), %eax'
2318 tls_as_opt=--fatal-warnings
2322 .section ".tdata","awT",@progbits
2326 leaq foo@TLSGD(%rip), %rdi
2327 leaq foo@TLSLD(%rip), %rdi
2328 leaq foo@DTPOFF(%rax), %rdx
2329 movq foo@GOTTPOFF(%rip), %rax
2330 movq $foo@TPOFF, %rax'
2333 tls_as_opt=--fatal-warnings
2337 .section ".tdata","awT",@progbits
2340 addl r16 = @ltoff(@dtpmod(foo#)), gp
2341 addl r17 = @ltoff(@dtprel(foo#)), gp
2342 addl r18 = @ltoff(@tprel(foo#)), gp
2343 addl r19 = @dtprel(foo#), gp
2344 adds r21 = @dtprel(foo#), r13
2345 movl r23 = @dtprel(foo#)
2346 addl r20 = @tprel(foo#), gp
2347 adds r22 = @tprel(foo#), r13
2348 movl r24 = @tprel(foo#)'
2351 tls_as_opt=--fatal-warnings
2355 .section .tdata,"awT",@progbits
2359 addiu $4, $28, %tlsgd(x)
2360 addiu $4, $28, %tlsldm(x)
2361 lui $4, %dtprel_hi(x)
2362 addiu $4, $4, %dtprel_lo(x)
2363 lw $4, %gottprel(x)($28)
2364 lui $4, %tprel_hi(x)
2365 addiu $4, $4, %tprel_lo(x)'
2368 tls_as_opt='-32 --fatal-warnings'
2372 .section ".tdata","awT",@progbits
2380 addi 3,31,ld0@got@tlsgd
2382 addi 3,31,x1@got@tlsld
2385 addis 9,3,x2@dtprel@ha
2386 addi 9,9,x2@dtprel@l
2387 lwz 9,x3@got@tprel(31)
2390 addis 9,2,x2@tprel@ha
2391 addi 9,9,x2@tprel@l'
2394 tls_as_opt="-a32 --fatal-warnings"
2398 .section ".tdata","awT",@progbits
2406 addi 3,2,ld0@got@tlsgd
2412 addi 3,2,x1@got@tlsld
2418 addis 9,3,x2@dtprel@ha
2419 addi 9,9,x2@dtprel@l
2422 ld 9,x3@got@dtprel(2)
2428 tls_as_opt="-a64 --fatal-warnings"
2432 .section ".tdata","awT",@progbits
2441 l %r1,foo@GOTNTPOFF(%r12)
2442 l %r1,0(%r1):tls_load:foo
2443 bas %r14,0(%r1,%r13):tls_gdcall:foo
2444 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2447 tls_as_opt="-m31 --fatal-warnings"
2451 .section ".tdata","awT",@progbits
2459 lg %r1,foo@GOTNTPOFF(%r12)
2460 larl %r1,foo@INDNTPOFF
2461 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2462 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2465 tls_as_opt="-m64 -Aesame --fatal-warnings"
2467 sh-*-* | sh[34]-*-*)
2469 .section ".tdata","awT",@progbits
2479 tls_as_opt=--fatal-warnings
2483 sparc*-sun-solaris2.*)
2490 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2492 .section ".tdata",#alloc,#write,#tls
2495 sethi %tgd_hi22(foo), %o0
2496 add %o0, %tgd_lo10(foo), %o1
2497 add %l7, %o1, %o0, %tgd_add(foo)
2498 call __tls_get_addr, %tgd_call(foo)
2499 sethi %tldm_hi22(foo), %l1
2500 add %l1, %tldm_lo10(foo), %l2
2501 add %l7, %l2, %o0, %tldm_add(foo)
2502 call __tls_get_addr, %tldm_call(foo)
2503 sethi %tldo_hix22(foo), %l3
2504 xor %l3, %tldo_lox10(foo), %l4
2505 add %o0, %l4, %l5, %tldo_add(foo)
2506 sethi %tie_hi22(foo), %o3
2507 add %o3, %tie_lo10(foo), %o3
2508 ld [%l7 + %o3], %o2, %tie_ld(foo)
2509 add %g7, %o2, %o4, %tie_add(foo)
2510 sethi %tle_hix22(foo), %l1
2511 xor %l1, %tle_lox10(foo), %o5
2512 ld [%g7 + %o5], %o1'
2517 .section ".tdata","awT",@progbits
2520 sethi %tgd_hi22(foo), %o0
2521 add %o0, %tgd_lo10(foo), %o1
2522 add %l7, %o1, %o0, %tgd_add(foo)
2523 call __tls_get_addr, %tgd_call(foo)
2524 sethi %tldm_hi22(foo), %l1
2525 add %l1, %tldm_lo10(foo), %l2
2526 add %l7, %l2, %o0, %tldm_add(foo)
2527 call __tls_get_addr, %tldm_call(foo)
2528 sethi %tldo_hix22(foo), %l3
2529 xor %l3, %tldo_lox10(foo), %l4
2530 add %o0, %l4, %l5, %tldo_add(foo)
2531 sethi %tie_hi22(foo), %o3
2532 add %o3, %tie_lo10(foo), %o3
2533 ld [%l7 + %o3], %o2, %tie_ld(foo)
2534 add %g7, %o2, %o4, %tie_add(foo)
2535 sethi %tle_hix22(foo), %l1
2536 xor %l1, %tle_lox10(foo), %o5
2537 ld [%g7 + %o5], %o1'
2540 tls_as_opt="-32 --fatal-warnings"
2546 if test "x$enable_tls" = xno ; then
2547 : # TLS explicitly disabled.
2548 elif test "x$enable_tls" = xyes ; then
2549 set_have_as_tls=yes # TLS explicitly enabled.
2550 elif test -z "$tls_first_major"; then
2551 : # If we don't have a check, assume no support.
2553 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2554 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2555 [set_have_as_tls=yes])
2557 if test $set_have_as_tls = yes ; then
2558 AC_DEFINE(HAVE_AS_TLS, 1,
2559 [Define if your assembler supports thread-local storage.])
2562 # Target-specific assembler checks.
2564 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2565 gcc_cv_ld_static_dynamic=no
2566 if test $in_tree_ld = yes ; then
2567 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2568 gcc_cv_ld_static_dynamic=yes
2570 elif test x$gcc_cv_ld != x; then
2571 # Check if linker supports -Bstatic/-Bdynamic option
2572 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2573 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2574 gcc_cv_ld_static_dynamic=yes
2577 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2578 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2579 [Define if your linker supports -Bstatic/-Bdynamic option.])
2581 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2583 if test x"$demangler_in_ld" = xyes; then
2584 AC_MSG_CHECKING(linker --demangle support)
2585 gcc_cv_ld_demangle=no
2586 if test $in_tree_ld = yes; then
2587 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2588 gcc_cv_ld_demangle=yes
2590 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2591 # Check if the GNU linker supports --demangle option
2592 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2593 gcc_cv_ld_demangle=yes
2596 if test x"$gcc_cv_ld_demangle" = xyes; then
2597 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2598 [Define if your linker supports --demangle option.])
2600 AC_MSG_RESULT($gcc_cv_ld_demangle)
2604 # All TARGET_ABI_OSF targets.
2605 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2606 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2607 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2610 extbl $3, $2, $3 !lituse_bytoff!1
2611 ldq $2, a($29) !literal!1
2612 ldq $4, b($29) !literal!2
2613 ldq_u $3, 0($2) !lituse_base!1
2614 ldq $27, f($29) !literal!5
2615 jsr $26, ($27), f !lituse_jsr!5
2616 ldah $29, 0($26) !gpdisp!3
2617 lda $0, c($29) !gprel
2618 ldah $1, d($29) !gprelhigh
2619 lda $1, d($1) !gprellow
2620 lda $29, 0($29) !gpdisp!3],,
2621 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2622 [Define if your assembler supports explicit relocations.])])
2623 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2624 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2627 ldq $27, a($29) !literal!1
2628 jsr $26, ($27), a !lituse_jsrdirect!1],,
2629 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2630 [Define if your assembler supports the lituse_jsrdirect relocation.])])
2634 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2635 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2636 [-no-mul-bug-abort], [.text],,
2637 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2638 [Define if your assembler supports the -no-mul-bug-abort option.])])
2642 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2643 [.register %g2, #scratch],,
2644 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2645 [Define if your assembler supports .register.])])
2647 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2649 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2650 [Define if your assembler supports -relax option.])])
2652 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2653 gcc_cv_as_sparc_ua_pcrel,,
2661 .uaword %r_disp32(foo)],
2662 [if test x$gcc_cv_ld != x \
2663 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2664 gcc_cv_as_sparc_ua_pcrel=yes
2667 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2668 [Define if your assembler and linker support unaligned PC relative relocs.])
2670 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2671 gcc_cv_as_sparc_ua_pcrel_hidden,,
2676 .uaword %r_disp32(foo)
2677 .byte 0x32, 0x33, 0x34
2682 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2683 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2684 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2685 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2686 if $gcc_cv_objdump -R conftest 2> /dev/null \
2687 | grep 'DISP32' > /dev/null 2>&1; then
2690 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2694 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2695 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2696 ]) # unaligned pcrel relocs
2698 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2699 gcc_cv_as_sparc_offsetable_lo10,,
2702 or %g1, %lo(ab) + 12, %g1
2703 or %g1, %lo(ab + 12), %g1],
2704 [if test x$gcc_cv_objdump != x \
2705 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2706 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2707 gcc_cv_as_sparc_offsetable_lo10=yes
2709 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2710 [Define if your assembler supports offsetable %lo().])])
2714 i[34567]86-*-* | x86_64-*-*)
2717 cygwin* | pe | mingw32*)
2718 # Used for DWARF 2 in PE
2719 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2720 gcc_cv_as_ix86_pe_secrel32,
2726 [if test x$gcc_cv_ld != x \
2727 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2728 gcc_cv_as_ix86_pe_secrel32=yes
2731 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2732 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2736 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2737 gcc_cv_as_ix86_filds_fists,
2738 [2,9,0],, [filds mem; fists mem],,
2739 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2740 [Define if your assembler uses the new HImode fild and fist notation.])])
2742 gcc_GAS_CHECK_FEATURE([cmov syntax],
2743 gcc_cv_as_ix86_cmov_sun_syntax,,,
2744 [cmovl.l %edx, %eax],,
2745 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2746 [Define if your assembler supports the Sun syntax for cmov.])])
2748 # This one is used unconditionally by i386.[ch]; it is to be defined
2749 # to 1 if the feature is present, 0 otherwise.
2750 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2751 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2757 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2758 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2759 [Define true if the assembler supports '.long foo@GOTOFF'.])
2763 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2764 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2766 addl r15 = @ltoffx(x#), gp
2768 ld8.mov r16 = [[r15]], x#],,
2769 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2770 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2776 *-*-aix*) conftest_s=' .machine "pwr5"
2780 gcc_GAS_CHECK_FEATURE([.machine directive support],
2781 gcc_cv_as_machine_directive,,,
2782 [ .machine ppc7400])
2783 if test x$gcc_cv_as_machine_directive != xyes; then
2784 echo "*** This target requires an assembler supporting \".machine\"" >&2
2785 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2786 test x$build = x$target && exit 1
2790 *) conftest_s=' .machine power4
2795 gcc_GAS_CHECK_FEATURE([mfcr field support],
2796 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2798 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2799 [Define if your assembler supports mfcr field.])])
2802 *-*-aix*) conftest_s=' .machine "pwr5"
2805 *) conftest_s=' .machine power5
2810 gcc_GAS_CHECK_FEATURE([popcntb support],
2811 gcc_cv_as_powerpc_popcntb, [2,17,0],,
2813 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
2814 [Define if your assembler supports popcntb field.])])
2817 *-*-aix*) conftest_s=' .machine "pwr5x"
2820 *) conftest_s=' .machine power5
2825 gcc_GAS_CHECK_FEATURE([fp round support],
2826 gcc_cv_as_powerpc_fprnd, [2,17,0],,
2828 [AC_DEFINE(HAVE_AS_FPRND, 1,
2829 [Define if your assembler supports fprnd.])])
2832 *-*-aix*) conftest_s=' .csect .text[[PR]]
2834 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
2838 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
2839 *) conftest_s=' .text
2841 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
2844 gcc_GAS_CHECK_FEATURE([rel16 relocs],
2845 gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
2847 [AC_DEFINE(HAVE_AS_REL16, 1,
2848 [Define if your assembler supports R_PPC_REL16 relocs.])])
2852 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2853 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2854 [ lw $4,%gp_rel(foo)($4)],,
2855 [if test x$target_cpu_default = x
2856 then target_cpu_default=MASK_EXPLICIT_RELOCS
2857 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2862 # Mips and HP-UX need the GNU assembler.
2863 # Linux on IA64 might be able to use the Intel assembler.
2866 mips*-*-* | *-*-hpux* )
2867 if test x$gas_flag = xyes \
2868 || test x"$host" != x"$build" \
2869 || test ! -x "$gcc_cv_as" \
2870 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2873 echo "*** This configuration requires the GNU assembler" >&2
2879 # ??? Not all targets support dwarf2 debug_line, even within a version
2880 # of gas. Moreover, we need to emit a valid instruction to trigger any
2881 # info to the output file. So, as supported targets are added to gas 2.11,
2882 # add some instruction here to (also) show we expect this might work.
2883 # ??? Once 2.11 is released, probably need to add first known working
2884 # version to the per-target configury.
2886 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2887 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2888 | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-*)
2891 ia64*-*-* | s390*-*-*)
2898 if test x"$insn" != x; then
2900 .file 1 \"conftest.s\"
2903 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2904 gcc_cv_as_dwarf2_debug_line,
2905 [elf,2,11,0],, [$conftest_s],
2906 [if test x$gcc_cv_objdump != x \
2907 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2908 | grep debug_line > /dev/null 2>&1; then
2909 gcc_cv_as_dwarf2_debug_line=yes
2912 # The .debug_line file table must be in the exact order that
2913 # we specified the files, since these indices are also used
2914 # by DW_AT_decl_file. Approximate this test by testing if
2915 # the assembler bitches if the same index is assigned twice.
2916 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2917 gcc_cv_as_dwarf2_file_buggy,,,
2921 if test $gcc_cv_as_dwarf2_debug_line = yes \
2922 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2923 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2924 [Define if your assembler supports dwarf2 .file/.loc directives,
2925 and preserves file table indices exactly as given.])
2928 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2929 gcc_cv_as_gdwarf2_flag,
2930 [elf,2,11,0], [--gdwarf2], [$insn],,
2931 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2932 [Define if your assembler supports the --gdwarf2 option.])])
2934 gcc_GAS_CHECK_FEATURE([--gstabs option],
2935 gcc_cv_as_gstabs_flag,
2936 [elf,2,11,0], [--gstabs], [$insn],
2937 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2938 # and warns about it, but still exits successfully. So check for
2940 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2942 else gcc_cv_as_gstabs_flag=yes
2944 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2945 [Define if your assembler supports the --gstabs option.])])
2948 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2949 gcc_cv_ld_ro_rw_mix=unknown
2950 if test $in_tree_ld = yes ; then
2951 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2952 && test $in_tree_ld_is_elf = yes; then
2953 gcc_cv_ld_ro_rw_mix=read-write
2955 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2956 echo '.section myfoosect, "a"' > conftest1.s
2957 echo '.section myfoosect, "aw"' > conftest2.s
2958 echo '.byte 1' >> conftest2.s
2959 echo '.section myfoosect, "a"' > conftest3.s
2960 echo '.byte 0' >> conftest3.s
2961 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2962 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2963 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2964 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2965 conftest2.o conftest3.o > /dev/null 2>&1; then
2966 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2967 | sed -e '/myfoosect/!d' -e N`
2968 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2969 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2970 gcc_cv_ld_ro_rw_mix=read-only
2972 gcc_cv_ld_ro_rw_mix=read-write
2977 rm -f conftest.* conftest[123].*
2980 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2981 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2982 [Define if your linker links a mix of read-only
2983 and read-write sections into a read-write section.])
2985 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2987 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2988 gcc_cv_ld_eh_frame_hdr=no
2989 if test $in_tree_ld = yes ; then
2990 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2991 && test $in_tree_ld_is_elf = yes; then
2992 gcc_cv_ld_eh_frame_hdr=yes
2994 elif test x$gcc_cv_ld != x; then
2995 # Check if linker supports --eh-frame-hdr option
2996 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2997 gcc_cv_ld_eh_frame_hdr=yes
3000 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
3001 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
3002 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
3003 [Define if your linker supports --eh-frame-hdr option.])
3005 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
3007 AC_MSG_CHECKING(linker position independent executable support)
3009 if test $in_tree_ld = yes ; then
3010 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
3011 && test $in_tree_ld_is_elf = yes; then
3014 elif test x$gcc_cv_ld != x; then
3015 # Check if linker supports -pie option
3016 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
3020 if test x"$gcc_cv_ld_pie" = xyes; then
3021 AC_DEFINE(HAVE_LD_PIE, 1,
3022 [Define if your linker supports -pie option.])
3024 AC_MSG_RESULT($gcc_cv_ld_pie)
3030 AC_CACHE_CHECK(linker --as-needed support,
3031 gcc_cv_ld_as_needed,
3032 [gcc_cv_ld_as_needed=no
3033 if test $in_tree_ld = yes ; then
3034 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
3035 && test $in_tree_ld_is_elf = yes; then
3036 gcc_cv_ld_as_needed=yes
3038 elif test x$gcc_cv_ld != x; then
3039 # Check if linker supports --as-needed and --no-as-needed options
3040 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
3041 gcc_cv_ld_as_needed=yes
3045 if test x"$gcc_cv_ld_as_needed" = xyes; then
3046 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
3047 [Define if your linker supports --as-needed and --no-as-needed options.])
3050 case "$target:$tm_file" in
3051 powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
3052 AC_CACHE_CHECK(linker support for omitting dot symbols,
3053 gcc_cv_ld_no_dot_syms,
3054 [gcc_cv_ld_no_dot_syms=no
3055 if test $in_tree_ld = yes ; then
3056 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
3057 gcc_cv_ld_no_dot_syms=yes
3059 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
3060 cat > conftest1.s <<EOF
3064 cat > conftest2.s <<EOF
3065 .section ".opd","aw"
3070 .quad .LEfoo,.TOC.@tocbase,0
3076 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
3077 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
3078 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
3079 gcc_cv_ld_no_dot_syms=yes
3081 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3084 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3085 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3086 [Define if your PowerPC64 linker only needs function descriptor syms.])
3091 AC_CACHE_CHECK(linker --sysroot support,
3093 [gcc_cv_ld_sysroot=no
3094 if test $in_tree_ld = yes ; then
3095 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
3096 gcc_cv_ld_sysroot=yes
3098 elif test x$gcc_cv_ld != x; then
3099 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3100 gcc_cv_ld_sysroot=yes
3103 if test x"$gcc_cv_ld_sysroot" = xyes; then
3104 AC_DEFINE(HAVE_LD_SYSROOT, 1,
3105 [Define if your linker supports --sysroot.])
3108 if test x$with_sysroot = x && test x$host = x$target \
3109 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3110 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3111 [Define to PREFIX/include if cpp should also search that directory.])
3114 # Test for stack protector support in target C library.
3117 AC_CACHE_CHECK(__stack_chk_fail in target GNU C library,
3118 gcc_cv_libc_provides_ssp,
3119 [gcc_cv_libc_provides_ssp=no
3120 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3121 if test "x$with_sysroot" = x; then
3122 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3123 elif test "x$with_sysroot" = xyes; then
3124 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3126 glibc_header_dir="${with_sysroot}/usr/include"
3129 glibc_header_dir=/usr/include
3131 # glibc 2.4 and later provides __stack_chk_fail and
3132 # either __stack_chk_guard, or TLS access to stack guard canary.
3133 if test -f $glibc_header_dir/features.h \
3134 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
3135 $glibc_header_dir/features.h > /dev/null; then
3136 if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
3137 $glibc_header_dir/features.h > /dev/null; then
3138 gcc_cv_libc_provides_ssp=yes
3139 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
3140 $glibc_header_dir/features.h > /dev/null \
3141 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
3142 $glibc_header_dir/features.h > /dev/null; then
3143 gcc_cv_libc_provides_ssp=yes
3146 *) gcc_cv_libc_provides_ssp=no ;;
3148 if test x$gcc_cv_libc_provides_ssp = xyes; then
3149 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
3150 [Define if your target C library provides stack protector support])
3153 # Find out what GC implementation we want, or may, use.
3155 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3163 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3166 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3171 echo "Using $GGC for garbage collection."
3173 # Use the system's zlib library.
3175 zlibinc="-I\$(srcdir)/../zlib"
3176 AC_ARG_WITH(system-zlib,
3177 [ --with-system-zlib use installed libz],
3184 dnl Very limited version of automake's enable-maintainer-mode
3186 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3187 dnl maintainer-mode is disabled by default
3188 AC_ARG_ENABLE(maintainer-mode,
3189 [ --enable-maintainer-mode
3190 enable make rules and dependencies not useful
3191 (and sometimes confusing) to the casual installer],
3192 maintainer_mode=$enableval,
3195 AC_MSG_RESULT($maintainer_mode)
3197 if test "$maintainer_mode" = "yes"; then
3208 # Make empty files to contain the specs and options for each language.
3209 # Then add #include lines to for a compiler that has specs and/or options.
3214 for subdir in . $subdirs
3216 if test -f $srcdir/$subdir/lang.opt; then
3217 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3219 if test -f $srcdir/$subdir/lang-specs.h; then
3220 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3222 if test -f $srcdir/$subdir/$subdir-tree.def; then
3223 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3227 # These (without "all_") are set in each config-lang.in.
3228 # `language' must be a single word so is spelled singularly.
3233 all_outputs='Makefile gccbug mklibgcc libada-mk'
3234 # List of language makefile fragments.
3236 # List of language subdirectory makefiles. Deprecated.
3238 # Files for gengtype
3239 all_gtfiles="$target_gtfiles"
3240 # Files for gengtype with language
3241 all_gtfiles_files_langs=
3242 all_gtfiles_files_files=
3244 # Add the language fragments.
3245 # Languages are added via two mechanisms. Some information must be
3246 # recorded in makefile variables, these are defined in config-lang.in.
3247 # We accumulate them and plug them into the main Makefile.
3248 # The other mechanism is a set of hooks for each of the main targets
3249 # like `clean', `install', etc.
3251 language_hooks="Make-hooks"
3261 . ${srcdir}/$s/config-lang.in
3262 if test "x$language" = x
3264 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3267 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3268 if test -f ${srcdir}/$s/Makefile.in
3269 then all_lang_makefiles="$s/Makefile"
3271 all_languages="$all_languages $language"
3272 if test "x$boot_language" = xyes
3274 all_boot_languages="$all_boot_languages $language"
3276 all_compilers="$all_compilers $compilers"
3277 all_stagestuff="$all_stagestuff $stagestuff"
3278 all_outputs="$all_outputs $outputs"
3279 all_gtfiles="$all_gtfiles $gtfiles"
3282 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3283 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3287 # Pick up gtfiles for c
3290 . ${srcdir}/c-config-lang.in
3291 all_gtfiles="$all_gtfiles $gtfiles"
3294 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3295 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3299 for language in $all_languages
3301 check_languages="$check_languages check-$language"
3304 # We link each language in with a set of hooks, reached indirectly via
3309 target_list="all.cross start.encap rest.encap tags \
3310 install-common install-man \
3311 uninstall info man srcextra srcman srcinfo \
3312 mostlyclean clean distclean maintainer-clean \
3313 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3314 for t in $target_list
3317 for lang in $all_languages
3321 echo "lang.$t: $x" >> Make-hooks
3330 echo "dir ." > .gdbinit
3331 echo "dir ${srcdir}" >> .gdbinit
3332 if test x$gdb_needs_out_file_path = xyes
3334 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3336 if test "x$subdirs" != x; then
3339 echo "dir ${srcdir}/$s" >> .gdbinit
3342 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3344 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3345 # absolute path for gcc_tooldir based on inserting the number of up-directory
3346 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3347 # $(libsubdir)/@(unlibsubdir) based path.
3348 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3349 # make and thus we'd get different behavior depending on where we built the
3351 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3352 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3354 changequote(<<, >>)dnl
3355 # An explanation of the sed strings:
3356 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3357 # -e 's|/$||' match a trailing forward slash and eliminates it
3358 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3359 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3361 # (*) Note this pattern overwrites the first character of the string
3362 # with a forward slash if one is not already present. This is not a
3363 # problem because the exact names of the sub-directories concerned is
3364 # unimportant, just the number of them matters.
3366 # The practical upshot of these patterns is like this:
3368 # prefix exec_prefix result
3369 # ------ ----------- ------
3371 # /foo/ /foo/bar ../
3372 # /foo /foo/bar/ ../
3373 # /foo/ /foo/bar/ ../
3374 # /foo /foo/bar/ugg ../../
3377 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3378 changequote([, ])dnl
3380 AC_SUBST(gcc_tooldir)
3383 # Find a directory in which to install a shared libgcc.
3385 AC_ARG_ENABLE(version-specific-runtime-libs,
3386 [ --enable-version-specific-runtime-libs
3387 specify that runtime libraries should be
3388 installed in a compiler-specific directory])
3390 AC_ARG_WITH(slibdir,
3391 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3392 slibdir="$with_slibdir",
3393 if test "${enable_version_specific_runtime_libs+set}" = set; then
3394 slibdir='$(libsubdir)'
3395 elif test "$host" != "$target"; then
3396 slibdir='$(build_tooldir)/lib'
3402 objdir=`${PWDCMD-pwd}`
3405 # Substitute configuration variables
3408 AC_SUBST(all_boot_languages)
3409 AC_SUBST(all_compilers)
3410 AC_SUBST(all_gtfiles)
3411 AC_SUBST(all_gtfiles_files_langs)
3412 AC_SUBST(all_gtfiles_files_files)
3413 AC_SUBST(all_lang_makefrags)
3414 AC_SUBST(all_lang_makefiles)
3415 AC_SUBST(all_languages)
3416 AC_SUBST(all_stagestuff)
3417 AC_SUBST(build_exeext)
3418 AC_SUBST(build_install_headers_dir)
3419 AC_SUBST(build_xm_file_list)
3420 AC_SUBST(build_xm_include_list)
3421 AC_SUBST(build_xm_defines)
3422 AC_SUBST(check_languages)
3423 AC_SUBST(cc_set_by_configure)
3424 AC_SUBST(quoted_cc_set_by_configure)
3425 AC_SUBST(cpp_install_dir)
3426 AC_SUBST(xmake_file)
3427 AC_SUBST(tmake_file)
3428 AC_SUBST(extra_gcc_objs)
3429 AC_SUBST(extra_headers_list)
3430 AC_SUBST(extra_objs)
3431 AC_SUBST(extra_parts)
3432 AC_SUBST(extra_passes)
3433 AC_SUBST(extra_programs)
3434 AC_SUBST(float_h_file)
3435 AC_SUBST(gcc_config_arguments)
3436 AC_SUBST(gcc_gxx_include_dir)
3437 AC_SUBST(libstdcxx_incdir)
3438 AC_SUBST(host_exeext)
3439 AC_SUBST(host_xm_file_list)
3440 AC_SUBST(host_xm_include_list)
3441 AC_SUBST(host_xm_defines)
3442 AC_SUBST(out_host_hook_obj)
3444 AC_SUBST(lang_opt_files)
3445 AC_SUBST(lang_specs_files)
3446 AC_SUBST(lang_tree_files)
3447 AC_SUBST(local_prefix)
3449 AC_SUBST(objc_boehm_gc)
3451 AC_SUBST(out_object_file)
3452 AC_SUBST(stage_prefix_set_by_configure)
3453 AC_SUBST(quoted_stage_prefix_set_by_configure)
3454 AC_SUBST(thread_file)
3455 AC_SUBST(tm_file_list)
3456 AC_SUBST(tm_include_list)
3457 AC_SUBST(tm_defines)
3458 AC_SUBST(tm_p_file_list)
3459 AC_SUBST(tm_p_include_list)
3460 AC_SUBST(xm_file_list)
3461 AC_SUBST(xm_include_list)
3462 AC_SUBST(xm_defines)
3463 AC_SUBST(c_target_objs)
3464 AC_SUBST(cxx_target_objs)
3465 AC_SUBST(target_cpu_default)
3467 AC_SUBST_FILE(language_hooks)
3470 if test x${build} = x${host} ; then
3471 if test x${host} = x${target} ; then
3472 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3474 echo "Links are now set up to build a cross-compiler" 1>&2
3475 echo " from ${host} to ${target}." 1>&2
3478 if test x${host} = x${target} ; then
3479 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3480 echo " for ${target}." 1>&2
3482 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3483 echo " from ${host} to ${target}." 1>&2
3487 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3488 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3490 # Configure the subdirectories
3491 # AC_CONFIG_SUBDIRS($subdirs)
3493 # Create the Makefile
3494 # and configure language subdirectories
3495 AC_CONFIG_FILES($all_outputs)
3497 AC_CONFIG_COMMANDS([default],
3499 case ${CONFIG_HEADERS} in
3500 *auto-host.h:config.in*)
3503 # Make sure all the subdirs exist.
3504 for d in $subdirs doc build
3506 test -d $d || mkdir $d
3508 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3509 # bootstrapping and the installation procedure can still use
3510 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3511 # FLAGS_TO_PASS has been modified to solve the problem there.
3512 # This is virtually a duplicate of what happens in configure.lang; we do
3513 # an extra check to make sure this only happens if ln -s can be used.
3516 for d in ${subdirs} ; do
3517 STARTDIR=`${PWDCMD-pwd}`
3519 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3522 $LN_S ../$t $t 2>/dev/null
3529 [subdirs='$subdirs'])