2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
5 # Free Software Foundation, Inc.
7 #This file is part of GCC.
9 #GCC is free software; you can redistribute it and/or modify it under
10 #the terms of the GNU General Public License as published by the Free
11 #Software Foundation; either version 2, or (at your option) any later
14 #GCC is distributed in the hope that it will be useful, but WITHOUT
15 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 #You should have received a copy of the GNU General Public License
20 #along with GCC; see the file COPYING. If not, write to the Free
21 #Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
24 # --------------------------------
25 # Initialization and sanity checks
26 # --------------------------------
30 AC_CONFIG_SRCDIR(tree.c)
31 AC_CONFIG_HEADER(auto-host.h:config.in)
33 gcc_version=`cat $srcdir/BASE-VER`
35 # Determine the host, build, and target systems
40 # Determine the noncanonical target name, for directory use.
41 ACX_NONCANONICAL_TARGET
43 # Determine the target- and build-specific subdirectories
46 # Set program_transform_name
49 # Check for bogus environment variables.
50 # Test if LIBRARY_PATH contains the notation for the current directory
51 # since this would lead to problems installing/building glibc.
52 # LIBRARY_PATH contains the current directory if one of the following
54 # - one of the terminals (":" and ";") is the first or last sign
55 # - two terminals occur directly after each other
56 # - the path contains an element with a dot in it
57 AC_MSG_CHECKING(LIBRARY_PATH variable)
59 case ${LIBRARY_PATH} in
60 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
61 library_path_setting="contains current directory"
64 library_path_setting="ok"
68 AC_MSG_RESULT($library_path_setting)
69 if test "$library_path_setting" != "ok"; then
71 *** LIBRARY_PATH shouldn't contain the current directory when
72 *** building gcc. Please change the environment variable
73 *** and run configure again.])
76 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
77 # since this would lead to problems installing/building glibc.
78 # GCC_EXEC_PREFIX contains the current directory if one of the following
80 # - one of the terminals (":" and ";") is the first or last sign
81 # - two terminals occur directly after each other
82 # - the path contains an element with a dot in it
83 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
85 case ${GCC_EXEC_PREFIX} in
86 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
87 gcc_exec_prefix_setting="contains current directory"
90 gcc_exec_prefix_setting="ok"
94 AC_MSG_RESULT($gcc_exec_prefix_setting)
95 if test "$gcc_exec_prefix_setting" != "ok"; then
97 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
98 *** building gcc. Please change the environment variable
99 *** and run configure again.])
106 # Specify the local prefix
108 AC_ARG_WITH(local-prefix,
109 [ --with-local-prefix=DIR specifies directory to put local include],
110 [case "${withval}" in
111 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
113 *) local_prefix=$with_local_prefix ;;
116 # Default local prefix if it is empty
117 if test x$local_prefix = x; then
118 local_prefix=/usr/local
121 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
122 # passed in by the toplevel make and thus we'd get different behavior
123 # depending on where we built the sources.
125 # Specify the g++ header file directory
126 AC_ARG_WITH(gxx-include-dir,
127 [ --with-gxx-include-dir=DIR
128 specifies directory to put g++ header files],
129 [case "${withval}" in
130 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
132 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
135 if test x${gcc_gxx_include_dir} = x; then
136 if test x${enable_version_specific_runtime_libs} = xyes; then
137 gcc_gxx_include_dir='${libsubdir}/include/c++'
139 libstdcxx_incdir='c++/$(version)'
140 changequote(<<, >>)dnl
141 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
146 AC_ARG_WITH(cpp_install_dir,
147 [ --with-cpp-install-dir=DIR
148 install the user visible C preprocessor in DIR
149 (relative to PREFIX) as well as PREFIX/bin],
150 [if test x$withval = xyes; then
151 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
152 elif test x$withval != xno; then
153 cpp_install_dir=$withval
156 # We would like to our source tree to be readonly. However when releases or
157 # pre-releases are generated, the flex/bison generated files as well as the
158 # various formats of manuals need to be included along with the rest of the
159 # sources. Therefore we have --enable-generated-files-in-srcdir to do
162 AC_MSG_CHECKING([whether to place generated files in the source directory])
163 dnl generated-files-in-srcdir is disabled by default
164 AC_ARG_ENABLE(generated-files-in-srcdir,
165 [ --enable-generated-files-in-srcdir
166 put copies of generated files in source dir
167 intended for creating source tarballs for users
168 without texinfo bison or flex.],
169 generated_files_in_srcdir=$enableval,
170 generated_files_in_srcdir=no)
172 AC_MSG_RESULT($generated_files_in_srcdir)
174 if test "$generated_files_in_srcdir" = "yes"; then
181 # -------------------
182 # Find default linker
183 # -------------------
187 [ --with-gnu-ld arrange to work with GNU ld.],
188 gnu_ld_flag="$with_gnu_ld",
191 # With pre-defined ld
193 [ --with-ld arrange to use the specified ld (full pathname)],
194 DEFAULT_LINKER="$with_ld")
195 if test x"${DEFAULT_LINKER+set}" = x"set"; then
196 if test ! -x "$DEFAULT_LINKER"; then
197 AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
198 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
201 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
202 [Define to enable the use of a default linker.])
205 AC_MSG_CHECKING([whether a default linker was specified])
206 if test x"${DEFAULT_LINKER+set}" = x"set"; then
207 if test x"$gnu_ld_flag" = x"no"; then
208 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
210 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
216 # With demangler in GNU ld
217 AC_ARG_WITH(demangler-in-ld,
218 [ --with-demangler-in-ld try to use demangler in GNU ld.],
219 demangler_in_ld="$with_demangler_in_ld",
222 # ----------------------
223 # Find default assembler
224 # ----------------------
228 [ --with-gnu-as arrange to work with GNU as],
229 gas_flag="$with_gnu_as",
233 [ --with-as arrange to use the specified as (full pathname)],
234 DEFAULT_ASSEMBLER="$with_as")
235 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
236 if test ! -x "$DEFAULT_ASSEMBLER"; then
237 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
238 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
241 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
242 [Define to enable the use of a default assembler.])
245 AC_MSG_CHECKING([whether a default assembler was specified])
246 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
247 if test x"$gas_flag" = x"no"; then
248 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
250 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
260 # If a non-executable a.out is present (e.g. created by GNU as above even if
261 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
262 # file, even when creating an executable, so an execution test fails.
263 # Remove possible default executable files to avoid this.
265 # FIXME: This really belongs into AC_PROG_CC and can be removed once
266 # Autoconf includes it.
267 rm -f a.out a.exe b.out
269 # Find the native compiler
272 # autoconf is lame and doesn't give us any substitution variable for this.
273 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
274 NO_MINUS_C_MINUS_O=yes
276 OUTPUT_OPTION='-o $@'
278 AC_SUBST(NO_MINUS_C_MINUS_O)
279 AC_SUBST(OUTPUT_OPTION)
281 # -------------------------
282 # Check C compiler features
283 # -------------------------
288 # sizeof(char) is 1 by definition.
289 AC_CHECK_SIZEOF(void *)
290 AC_CHECK_SIZEOF(short)
292 AC_CHECK_SIZEOF(long)
293 AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
294 AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)])
296 # ---------------------
297 # Warnings and checking
298 # ---------------------
300 # Check $CC warning features (if it's GCC).
301 # We want to use -pedantic, but we don't want warnings about
304 # So, we only use -pedantic if we can disable those warnings.
307 [whether ${CC} accepts -Wno-long-long],
308 [ac_cv_prog_cc_w_no_long_long],
309 [save_CFLAGS="$CFLAGS"
310 CFLAGS="-Wno-long-long"
311 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
312 [ac_cv_prog_cc_w_no_long_long=yes],
313 [ac_cv_prog_cc_w_no_long_long=no])
314 CFLAGS="$save_CFLAGS"
318 [whether ${CC} accepts -Wno-variadic-macros],
319 [ac_cv_prog_cc_w_no_variadic_macros],
320 [save_CFLAGS="$CFLAGS"
321 CFLAGS="-Wno-variadic-macros"
322 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
323 [ac_cv_prog_cc_w_no_variadic_macros=yes],
324 [ac_cv_prog_cc_w_no_variadic_macros=no])
325 CFLAGS="$save_CFLAGS"
329 if test $ac_cv_prog_cc_w_no_long_long = yes \
330 && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then
331 strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros"
334 # Add -Wold-style-definition if it's accepted
336 [whether ${CC} accepts -Wold-style-definition],
337 [ac_cv_prog_cc_w_old_style_definition],
338 [save_CFLAGS="$CFLAGS"
339 CFLAGS="-Wold-style-definition"
340 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
341 [ac_cv_prog_cc_w_old_style_definition=yes],
342 [ac_cv_prog_cc_w_old_style_definition=no])
343 CFLAGS="$save_CFLAGS"
345 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
346 strict1_warn="${strict1_warn} -Wold-style-definition"
349 # Add -Wmissing-format-attribute if it's accepted
351 [whether ${CC} accepts -Wmissing-format-attribute],
352 [ac_cv_prog_cc_w_missing_format_attribute],
353 [save_CFLAGS="$CFLAGS"
354 CFLAGS="-Wmissing-format-attribute"
355 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
356 [ac_cv_prog_cc_w_missing_format_attribute=yes],
357 [ac_cv_prog_cc_w_missing_format_attribute=no])
358 CFLAGS="$save_CFLAGS"
360 if test $ac_cv_prog_cc_w_missing_format_attribute = yes ; then
361 strict1_warn="${strict1_warn} -Wmissing-format-attribute"
364 # Enable -Werror, period.
365 AC_ARG_ENABLE(werror_always,
366 [ --enable-werror-always enable -Werror always], [],
367 [enable_werror_always=no])
368 if test x${enable_werror_always} = xyes ; then
369 strict1_warn="${strict1_warn} -Werror"
373 AC_SUBST(strict1_warn)
375 # If the native compiler is GCC, we can enable warnings even in stage1.
376 # That's useful for people building cross-compilers, or just running a
379 if test "x$GCC" = "xyes"; then
380 warn_cflags='$(GCC_WARN_CFLAGS)'
382 AC_SUBST(warn_cflags)
384 # Enable -Werror in bootstrap stage2 and later.
386 if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
389 AC_ARG_ENABLE(werror,
390 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
391 [if test x$is_release = x ; then
392 # Default to "yes" on development branches.
395 # Default to "no" on release branches.
398 if test x$enable_werror = xyes ; then
403 # Enable expensive internal checks
404 AC_ARG_ENABLE(checking,
405 [ --enable-checking[=LIST]
406 enable expensive run-time checks. With LIST,
407 enable only specific categories of checks.
408 Categories are: yes,no,all,none,release.
409 Flags are: assert,fold,gc,gcac,misc,
410 rtlflag,rtl,runtime,tree,valgrind.],
411 [ac_checking_flags="${enableval}"],[
412 # Determine the default checks.
413 if test x$is_release = x ; then
414 ac_checking_flags=yes
416 ac_checking_flags=release
422 ac_gc_always_collect=
425 ac_runtime_checking=1
427 ac_valgrind_checking=
428 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
429 for check in $ac_checking_flags
432 # these set all the flags to specific states
433 yes) ac_assert_checking=1 ; ac_checking=1 ;
434 ac_fold_checking= ; ac_gc_checking=1 ;
435 ac_gc_always_collect= ; ac_rtl_checking= ;
436 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
437 ac_tree_checking=1 ; ac_valgrind_checking= ;;
438 no|none) ac_assert_checking= ; ac_checking= ;
439 ac_fold_checking= ; ac_gc_checking= ;
440 ac_gc_always_collect= ; ac_rtl_checking= ;
441 ac_rtlflag_checking= ; ac_runtime_checking= ;
442 ac_tree_checking= ; ac_valgrind_checking= ;;
443 all) ac_assert_checking=1 ; ac_checking=1 ;
444 ac_fold_checking=1 ; ac_gc_checking=1 ;
445 ac_gc_always_collect=1 ; ac_rtl_checking=1 ;
446 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
447 ac_tree_checking=1 ; ac_valgrind_checking= ;;
448 release) ac_assert_checking=1 ; ac_checking= ;
449 ac_fold_checking= ; ac_gc_checking= ;
450 ac_gc_always_collect= ; ac_rtl_checking= ;
451 ac_rtlflag_checking= ; ac_runtime_checking=1 ;
452 ac_tree_checking= ; ac_valgrind_checking= ;;
453 # these enable particular checks
454 assert) ac_assert_checking=1 ;;
455 fold) ac_fold_checking=1 ;;
456 gc) ac_gc_checking=1 ;;
457 gcac) ac_gc_always_collect=1 ;;
458 misc) ac_checking=1 ;;
459 rtl) ac_rtl_checking=1 ;;
460 rtlflag) ac_rtlflag_checking=1 ;;
461 runtime) ac_runtime_checking=1 ;;
462 tree) ac_tree_checking=1 ;;
463 valgrind) ac_valgrind_checking=1 ;;
464 *) AC_MSG_ERROR(unknown check category $check) ;;
470 if test x$ac_checking != x ; then
471 AC_DEFINE(ENABLE_CHECKING, 1,
472 [Define if you want more run-time sanity checks. This one gets a grab
473 bag of miscellaneous but relatively cheap checks.])
474 nocommon_flag=-fno-common
476 AC_SUBST(nocommon_flag)
477 if test x$ac_assert_checking != x ; then
478 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
479 [Define if you want assertions enabled. This is a cheap check.])
481 GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING)
482 if test x$ac_runtime_checking != x ; then
483 AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
484 [Define if you want runtime assertions enabled. This is a cheap check.])
486 if test x$ac_tree_checking != x ; then
487 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
488 [Define if you want all operations on trees (the basic data
489 structure of the front ends) to be checked for dynamic type safety
490 at runtime. This is moderately expensive. The tree browser debugging
491 routines will also be enabled by this option.
493 TREEBROWSER=tree-browser.o
495 AC_SUBST(TREEBROWSER)
496 if test x$ac_rtl_checking != x ; then
497 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
498 [Define if you want all operations on RTL (the basic data structure
499 of the optimizer and back end) to be checked for dynamic type safety
500 at runtime. This is quite expensive.])
502 if test x$ac_rtlflag_checking != x ; then
503 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
504 [Define if you want RTL flag accesses to be checked against the RTL
505 codes that are supported for each access macro. This is relatively
508 if test x$ac_gc_checking != x ; then
509 AC_DEFINE(ENABLE_GC_CHECKING, 1,
510 [Define if you want the garbage collector to do object poisoning and
511 other memory allocation checks. This is quite expensive.])
513 if test x$ac_gc_always_collect != x ; then
514 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
515 [Define if you want the garbage collector to operate in maximally
516 paranoid mode, validating the entire heap and collecting garbage at
517 every opportunity. This is extremely expensive.])
519 if test x$ac_fold_checking != x ; then
520 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
521 [Define if you want fold checked that it never destructs its argument.
522 This is quite expensive.])
524 valgrind_path_defines=
527 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
528 dnl # an if statement. This was the source of very frustrating bugs
529 dnl # in converting to autoconf 2.5x!
530 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
532 if test x$ac_valgrind_checking != x ; then
533 # It is certainly possible that there's valgrind but no valgrind.h.
534 # GCC relies on making annotations so we must have both.
535 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
536 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
537 [[#include <valgrind/memcheck.h>
538 #ifndef VALGRIND_DISCARD
539 #error VALGRIND_DISCARD not defined
541 [gcc_cv_header_valgrind_memcheck_h=yes],
542 [gcc_cv_header_valgrind_memcheck_h=no])
543 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
544 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
545 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
546 [[#include <memcheck.h>
547 #ifndef VALGRIND_DISCARD
548 #error VALGRIND_DISCARD not defined
550 [gcc_cv_header_memcheck_h=yes],
551 [gcc_cv_header_memcheck_h=no])
552 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
553 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
554 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
555 if test "x$valgrind_path" = "x" \
556 || (test $have_valgrind_h = no \
557 && test $gcc_cv_header_memcheck_h = no \
558 && test $gcc_cv_header_valgrind_memcheck_h = no); then
559 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
561 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
562 valgrind_command="$valgrind_path -q"
563 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
564 [Define if you want to run subprograms and generated programs
565 through valgrind (a memory checker). This is extremely expensive.])
566 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
567 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
568 [Define if valgrind's valgrind/memcheck.h header is installed.])
570 if test $gcc_cv_header_memcheck_h = yes; then
571 AC_DEFINE(HAVE_MEMCHECK_H, 1,
572 [Define if valgrind's memcheck.h header is installed.])
575 AC_SUBST(valgrind_path_defines)
576 AC_SUBST(valgrind_command)
578 AC_ARG_ENABLE(mapped-location,
579 [ --enable-mapped-location location_t is fileline integer cookie],,
580 enable_mapped_location=no)
582 if test "$enable_mapped_location" = yes ; then
583 AC_DEFINE(USE_MAPPED_LOCATION, 1,
584 [Define if location_t is fileline integer cookie.])
587 # Enable code coverage collection
588 AC_ARG_ENABLE(coverage,
589 [ --enable-coverage[=LEVEL]
590 enable compiler's code coverage collection.
591 Use to measure compiler performance and locate
592 unused parts of the compiler. With LEVEL, specify
593 optimization. Values are opt, noopt,
595 [case "${enableval}" in
597 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
600 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
603 # a.k.a. --disable-coverage
607 AC_MSG_ERROR(unknown coverage setting $enableval)
611 AC_SUBST(coverage_flags)
613 AC_ARG_ENABLE(gather-detailed-mem-stats,
614 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
615 [enable_gather_detailed_mem_stats=no])
616 if test x$enable_gather_detailed_mem_stats = xyes ; then
617 AC_DEFINE(GATHER_STATISTICS, 1,
618 [Define to enable detailed memory allocation stats gathering.])
621 # -------------------------------
622 # Miscenalleous configure options
623 # -------------------------------
627 [ --with-stabs arrange to use stabs instead of host debug format],
631 # Determine whether or not multilibs are enabled.
632 AC_ARG_ENABLE(multilib,
633 [ --enable-multilib enable library support for multiple ABIs],
634 [], [enable_multilib=yes])
635 AC_SUBST(enable_multilib)
637 # Enable __cxa_atexit for C++.
638 AC_ARG_ENABLE(__cxa_atexit,
639 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
643 # Pass with no value to take the default
644 # Pass with a value to specify a thread package
645 AC_ARG_ENABLE(threads,
646 [ --enable-threads enable thread usage for target GCC
647 --enable-threads=LIB use LIB thread package for target GCC],,
650 AC_ARG_ENABLE(objc-gc,
651 [ --enable-objc-gc enable the use of Boehm's garbage collector with
652 the GNU Objective-C runtime],
653 if test x$enable_objc_gc = xno; then
661 [ --with-dwarf2 force the default debug format to be DWARF 2],
662 dwarf2="$with_dwarf2",
665 AC_ARG_ENABLE(shared,
666 [ --disable-shared don't provide a shared libgcc],
668 case $enable_shared in
672 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
673 for pkg in $enableval; do
674 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
681 ], [enable_shared=yes])
682 AC_SUBST(enable_shared)
684 AC_ARG_WITH(build-sysroot,
685 [ --with-build-sysroot=sysroot
686 use sysroot as the system root during the build])
689 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
691 case ${with_sysroot} in
692 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
693 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
696 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
697 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
699 if test "x$exec_prefix" = xNONE; then
700 if test "x$prefix" = xNONE; then
701 test_prefix=/usr/local
706 test_prefix=$exec_prefix
708 case ${TARGET_SYSTEM_ROOT} in
709 "${test_prefix}"|"${test_prefix}/"*|\
710 '${exec_prefix}'|'${exec_prefix}/'*)
711 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
712 TARGET_SYSTEM_ROOT_DEFINE="$t"
717 TARGET_SYSTEM_ROOT_DEFINE=
718 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
720 AC_SUBST(TARGET_SYSTEM_ROOT)
721 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
722 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
724 # Build with intermodule optimisations
725 AC_ARG_ENABLE(intermodule,
726 [ --enable-intermodule build the compiler in one step],
727 [case ${enable_intermodule} in
728 yes) onestep="-onestep";;
734 # Sanity check enable_languages in case someone does not run the toplevel
735 # configure # script.
736 AC_ARG_ENABLE(languages,
737 [ --enable-languages=LIST specify which front-ends to build],
738 [case ,${enable_languages}, in
740 # go safe -- we cannot be much sure without the toplevel
742 # analysis of which target libs are present and usable
746 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
751 enable_languages=c,${enable_languages}
754 [enable_languages=c])
757 for lang in ${srcdir}/*/config-lang.in
760 # The odd quoting in the next line works around
761 # an apparent bug in bash 1.12 on linux.
763 ${srcdir}/[*]/config-lang.in) ;;
765 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
766 if test "x$lang_alias" = x
768 echo "$lang doesn't set \$language." 1>&2
771 case ",$enable_languages," in
773 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
781 # -------------------------
782 # Checks for other programs
783 # -------------------------
787 # Find some useful tools
789 # We need awk to create options.c and options.h.
790 # Bail out if it's missing.
792 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
800 # By default, the Darwin ranlib will not treat common symbols as
801 # definitions when building the archive table of contents. Other
802 # ranlibs do that; pass an option to the Darwin ranlib that makes
803 # it behave similarly.
809 AC_SUBST(ranlib_flags)
813 # See if cmp has --ignore-initial.
814 gcc_AC_PROG_CMP_IGNORE_INITIAL
816 # See if we have the mktemp command.
817 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
819 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
821 # See if makeinfo has been installed and is modern enough
822 # that we can use it.
823 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
824 [GNU texinfo.* \([0-9][0-9.]*\)],
826 if test $gcc_cv_prog_makeinfo_modern = no; then
827 MAKEINFO="$MISSING makeinfo"
829 *** Makeinfo is missing or too old.
830 *** Info documentation will not be built.])
837 # Is pod2man recent enough to regenerate manpages?
838 AC_MSG_CHECKING([for recent Pod::Man])
839 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
841 GENERATED_MANPAGES=generated-manpages
846 AC_SUBST(GENERATED_MANPAGES)
849 dnl Don't use AC_PROG_LEX; we insist on flex.
850 dnl LEXLIB is not useful in gcc.
851 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
854 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
856 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
857 # check for build == host before using them.
860 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
861 && test -d ../binutils ; then
862 NM='$(objdir)/../binutils/nm-new'
864 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
868 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
869 && test -d ../binutils ; then
870 AR='$(objdir)/../binutils/ar'
872 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
876 # --------------------
877 # Checks for C headers
878 # --------------------
880 AC_MSG_CHECKING(for GNU C library)
881 AC_CACHE_VAL(gcc_cv_glibc,
882 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
883 [[#include <features.h>]], [[
884 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
885 #error Not a GNU C library system
889 AC_MSG_RESULT($gcc_cv_glibc)
890 if test $gcc_cv_glibc = yes; then
891 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
894 # Need to reject headers which give warnings, so that the -Werror bootstrap
895 # works later. *sigh* This needs to come before all header checks.
902 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
903 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
904 sys/resource.h sys/param.h sys/times.h sys/stat.h \
905 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
907 # Check for thread headers.
908 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
909 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
911 # These tests can't be done till we know if we have limits.h.
919 # Stage specific cflags for build.
925 stage1_cflags="-Wa,-J"
931 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
932 # sources; use -no-cpp-precomp to get to GNU cpp.
933 # Apple's GCC has bugs in designated initializer handling, so disable
935 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
938 AC_SUBST(stage1_cflags)
940 # These libraries may be used by collect2.
941 # We may need a special search path to get them linked.
942 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
944 for libs in '' -lld -lmld \
945 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
946 '-L/usr/lib/cmplrs/cc3.11 -lmld'
949 AC_TRY_LINK_FUNC(ldopen,
950 [gcc_cv_collect2_libs="$libs"; break])
953 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
954 case $gcc_cv_collect2_libs in
956 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
958 AC_SUBST(COLLECT2_LIBS)
960 # When building Ada code on Alpha, we need exc_resume which is usually in
961 # -lexc. So test for it.
964 AC_SEARCH_LIBS(exc_resume, exc)
967 AC_SUBST(GNAT_LIBEXC)
969 # Some systems put ldexp and frexp in libm instead of libc; assume
970 # they're both in the same place. jcf-dump needs them.
973 AC_SEARCH_LIBS(ldexp, m)
978 # Use <inttypes.h> only if it exists,
979 # doesn't clash with <sys/types.h>, and declares intmax_t.
980 AC_MSG_CHECKING(for inttypes.h)
981 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
982 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
983 [[#include <sys/types.h>
984 #include <inttypes.h>]],
985 [[intmax_t i = -1;]])],
986 [gcc_cv_header_inttypes_h=yes],
987 [gcc_cv_header_inttypes_h=no])])
988 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
989 if test $gcc_cv_header_inttypes_h = yes; then
990 AC_DEFINE(HAVE_INTTYPES_H, 1,
991 [Define if you have a working <inttypes.h> header file.])
994 dnl Disabled until we have a complete test for buggy enum bitfields.
995 dnl gcc_AC_C_ENUM_BF_UNSIGNED
997 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
998 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
999 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
1000 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
1001 putchar_unlocked putc_unlocked)
1002 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
1003 sysconf strsignal getrusage nl_langinfo scandir alphasort \
1004 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
1007 if test x$ac_cv_func_mbstowcs = xyes; then
1008 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
1009 [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
1015 [gcc_cv_func_mbstowcs_works=yes],
1016 [gcc_cv_func_mbstowcs_works=no],
1017 [gcc_cv_func_mbstowcs_works=yes])])
1018 if test x$gcc_cv_func_mbstowcs_works = xyes; then
1019 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1020 [Define this macro if mbstowcs does not crash when its
1021 first argument is NULL.])
1025 AC_CHECK_TYPE(ssize_t, int)
1027 # Try to determine the array type of the second argument of getgroups
1028 # for the target system (int or gid_t).
1030 if test "${target}" = "${build}"; then
1031 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
1034 # This condition may need some tweaking. It should include all
1035 # targets where the array type of the second argument of getgroups
1036 # is int and the type of gid_t is not equivalent to int.
1037 *-*-sunos* | *-*-ultrix*)
1038 TARGET_GETGROUPS_T=int
1041 TARGET_GETGROUPS_T=gid_t
1045 AC_SUBST(TARGET_GETGROUPS_T)
1047 gcc_AC_FUNC_PRINTF_PTR
1048 gcc_AC_FUNC_MMAP_BLACKLIST
1052 # Under VMS, vfork works very differently than on Unix. The standard test
1053 # won't work, and it isn't easily adaptable. It makes more sense to
1055 ac_cv_func_vfork_works=yes
1061 # Until we have in-tree GNU iconv:
1063 AC_SUBST(LIBICONV_DEP)
1069 # We will need to find libiberty.h and ansidecl.h
1070 saved_CFLAGS="$CFLAGS"
1071 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1072 gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
1073 strsignal strstr strverscmp \
1074 errno snprintf vsnprintf vasprintf malloc realloc calloc \
1075 free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1076 #include "ansidecl.h"
1077 #include "system.h"])
1079 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1080 #include "ansidecl.h"
1082 #ifdef HAVE_SYS_RESOURCE_H
1083 #include <sys/resource.h>
1087 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1088 #include "ansidecl.h"
1090 #ifdef HAVE_SYS_RESOURCE_H
1091 #include <sys/resource.h>
1093 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
1094 [Define to \`long' if <sys/resource.h> doesn't define.])])
1096 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1097 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1098 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1099 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1100 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1101 #include "ansidecl.h"
1110 gcc_AC_CHECK_DECLS(times, , ,[
1111 #include "ansidecl.h"
1113 #ifdef HAVE_SYS_TIMES_H
1114 #include <sys/times.h>
1118 # More time-related stuff.
1119 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1120 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1121 #include "ansidecl.h"
1123 #ifdef HAVE_SYS_TIMES_H
1124 #include <sys/times.h>
1126 ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
1127 if test $ac_cv_struct_tms = yes; then
1128 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1129 [Define if <sys/times.h> defines struct tms.])
1132 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1133 # revisit after autoconf 2.50.
1134 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1135 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1136 #include "ansidecl.h"
1138 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
1139 if test $gcc_cv_type_clock_t = yes; then
1140 AC_DEFINE(HAVE_CLOCK_T, 1,
1141 [Define if <time.h> defines clock_t.])
1144 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1145 CFLAGS="$saved_CFLAGS"
1147 gcc_AC_INITFINI_ARRAY
1149 # mkdir takes a single argument on some systems.
1150 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1158 # With Setjmp/Longjmp based exception handling.
1159 AC_ARG_ENABLE(sjlj-exceptions,
1160 [ --enable-sjlj-exceptions
1161 arrange to use setjmp/longjmp exception handling],
1162 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1163 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1164 [Define 0/1 to force the choice for exception handling model.])])
1166 # For platforms with the unwind ABI which includes an unwind library,
1167 # libunwind, we can choose to use the system libunwind.
1168 AC_ARG_WITH(system-libunwind,
1169 [ --with-system-libunwind use installed libunwind])
1171 # --------------------------------------------------------
1172 # Build, host, and target specific configuration fragments
1173 # --------------------------------------------------------
1175 # Collect build-machine-specific information.
1176 . ${srcdir}/config.build
1178 # Collect host-machine-specific information.
1179 . ${srcdir}/config.host
1183 # Collect target-machine-specific information.
1184 . ${srcdir}/config.gcc
1186 extra_objs="${host_extra_objs} ${extra_objs}"
1187 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1189 # Default the target-machine variables that were not explicitly set.
1190 if test x"$tm_file" = x
1191 then tm_file=$cpu_type/$cpu_type.h; fi
1193 if test x"$extra_headers" = x
1194 then extra_headers=; fi
1196 if test x$md_file = x
1197 then md_file=$cpu_type/$cpu_type.md; fi
1199 if test x$out_file = x
1200 then out_file=$cpu_type/$cpu_type.c; fi
1202 if test x"$tmake_file" = x
1203 then tmake_file=$cpu_type/t-$cpu_type
1206 if test x"$dwarf2" = xyes
1207 then tm_file="$tm_file tm-dwarf2.h"
1210 # Say what files are being used for the output code and MD file.
1211 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1212 echo "Using \`$srcdir/config/$md_file' as machine description file."
1214 # If any of the xm_file variables contain nonexistent files, warn
1215 # about them and drop them.
1218 for x in $build_xm_file; do
1219 if test -f $srcdir/config/$x
1221 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1227 for x in $host_xm_file; do
1228 if test -f $srcdir/config/$x
1230 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1236 for x in $xm_file; do
1237 if test -f $srcdir/config/$x
1239 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1245 for f in $tm_file; do
1248 if test $count = ax; then
1249 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1251 echo "Using the following target machine macro files:"
1252 for f in $tm_file; do
1253 echo " $srcdir/config/$f"
1257 if test x$need_64bit_hwint = xyes; then
1258 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1259 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1262 if test x$use_long_long_for_widest_fast_int = xyes; then
1263 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1264 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1265 efficiently supported by the host hardware.])
1269 for f in $host_xm_file; do
1272 if test $count = a; then
1274 elif test $count = ax; then
1275 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1277 echo "Using the following host machine macro files:"
1278 for f in $host_xm_file; do
1279 echo " $srcdir/config/$f"
1282 echo "Using ${out_host_hook_obj} for host machine hooks."
1284 if test "$host_xm_file" != "$build_xm_file"; then
1286 for f in $build_xm_file; do
1289 if test $count = a; then
1291 elif test $count = ax; then
1292 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1294 echo "Using the following build machine macro files:"
1295 for f in $build_xm_file; do
1296 echo " $srcdir/config/$f"
1305 # Check if a valid thread package
1306 case ${enable_threads} in
1309 target_thread_file='single'
1313 target_thread_file='single'
1315 aix | dce | gnat | irix | posix | posix95 | rtems | \
1316 single | solaris | vxworks | win32 )
1317 target_thread_file=${enable_threads}
1320 echo "${enable_threads} is an unknown thread package" 1>&2
1325 if test x${thread_file} = x; then
1326 # No thread file set by target-specific clauses in config.gcc,
1327 # so use file chosen by default logic above
1328 thread_file=${target_thread_file}
1331 # Make gthr-default.h if we have a thread file.
1333 if test $thread_file != single; then
1334 rm -f gthr-default.h
1335 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1336 gthread_flags=-DHAVE_GTHR_DEFAULT
1338 AC_SUBST(gthread_flags)
1345 if test x$enable___cxa_atexit = xyes || \
1346 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1347 if test x$host = x$target; then
1348 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1349 [echo "__cxa_atexit can't be enabled on this target"])
1351 # We can't check for __cxa_atexit when building a cross, so assume
1355 if test x$use_cxa_atexit = xyes; then
1356 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1357 [Define if you want to use __cxa_atexit, rather than atexit, to
1358 register C++ destructors for local statics and global objects.
1359 This is essential for fully standards-compliant handling of
1360 destructors, but requires __cxa_atexit in libc.])
1364 # Look for a file containing extra machine modes.
1365 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1366 extra_modes_file='$(srcdir)'/config/${extra_modes}
1367 AC_SUBST(extra_modes_file)
1368 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1369 [Define to the name of a file containing a list of extra machine modes
1370 for this architecture.])
1373 # Convert extra_options into a form suitable for Makefile use.
1375 for f in $extra_options; do
1376 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1378 AC_SUBST(extra_opt_files)
1380 # auto-host.h is the file containing items generated by autoconf and is
1381 # the first file included by config.h.
1382 # If host=build, it is correct to have bconfig include auto-host.h
1383 # as well. If host!=build, we are in error and need to do more
1384 # work to find out the build config parameters.
1385 if test x$host = x$build
1387 build_auto=auto-host.h
1389 # We create a subdir, then run autoconf in the subdir.
1390 # To prevent recursion we set host and build for the new
1391 # invocation of configure to the build for this invocation
1398 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1399 *) realsrcdir=../${srcdir};;
1401 saved_CFLAGS="${CFLAGS}"
1402 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1403 ${realsrcdir}/configure \
1404 --enable-languages=${enable_languages-all} \
1405 --target=$target_alias --host=$build_alias --build=$build_alias
1406 CFLAGS="${saved_CFLAGS}"
1408 # We just finished tests for the build machine, so rename
1409 # the file auto-build.h in the gcc directory.
1410 mv auto-host.h ../auto-build.h
1413 build_auto=auto-build.h
1415 AC_SUBST(build_subdir)
1417 tm_file="${tm_file} defaults.h"
1418 tm_p_file="${tm_p_file} tm-preds.h"
1419 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1420 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1421 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1422 # put this back in temporarily.
1423 xm_file="auto-host.h ansidecl.h ${xm_file}"
1430 # Compile in configure arguments.
1431 if test -f configargs.h ; then
1432 # Being re-configured.
1433 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1434 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1436 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1439 # Double all backslashes and backslash all quotes to turn
1440 # gcc_config_arguments into a C string.
1441 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1442 $gcc_config_arguments
1444 gcc_config_arguments_str=`cat conftest.out`
1447 cat > configargs.h <<EOF
1448 /* Generated automatically. */
1449 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1450 static const char thread_model[] = "$thread_file";
1452 static const struct {
1453 const char *name, *value;
1454 } configure_default_options[] = $configure_default_options;
1458 # Internationalization
1459 ZW_GNU_GETTEXT_SISTER_DIR
1461 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1462 # -liconv on the link line twice.
1463 case "$LIBINTL" in *$LIBICONV*)
1467 AC_ARG_ENABLE(secureplt,
1468 [ --enable-secureplt enable -msecure-plt by default for PowerPC],
1471 # Windows32 Registry support for specifying GCC installation paths.
1472 AC_ARG_ENABLE(win32-registry,
1473 [ --disable-win32-registry
1474 disable lookup of installation paths in the
1475 Registry on Windows hosts
1476 --enable-win32-registry enable registry lookup (default)
1477 --enable-win32-registry=KEY
1478 use KEY instead of GCC version as the last portion
1479 of the registry key],,)
1482 win32 | pe | cygwin* | mingw32* | uwin*)
1483 if test "x$enable_win32_registry" != xno; then
1484 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1487 if test "x$enable_win32_registry" != xno; then
1488 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1489 [Define to 1 if installation paths should be looked up in the Windows
1490 Registry. Ignored on non-Windows hosts.])
1492 if test "x$enable_win32_registry" != xyes \
1493 && test "x$enable_win32_registry" != x; then
1494 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1495 [Define to be the last component of the Windows registry key under which
1496 to look for installation paths. The full key used will be
1497 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1498 The default is the GCC version number.])
1504 # Get an absolute path to the GCC top-level source directory
1505 holddir=`${PWDCMD-pwd}`
1507 topdir=`${PWDCMD-pwd}`
1510 # Conditionalize the makefile for this host machine.
1512 for f in ${host_xmake_file}
1514 if test -f ${srcdir}/config/$f
1516 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1520 # Conditionalize the makefile for this target machine.
1522 for f in ${tmake_file}
1524 if test -f ${srcdir}/config/$f
1526 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1529 tmake_file="${tmake_file_}"
1531 # If the host doesn't support symlinks, modify CC in
1532 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1533 # Otherwise, we can use "CC=$(CC)".
1537 cc_set_by_configure="\$(CC)"
1538 quoted_cc_set_by_configure="\$(CC)"
1539 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1540 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1543 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1544 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1545 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1546 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1550 # This is a terrible hack which will go away some day.
1551 host_cc_for_libada=${CC}
1552 AC_SUBST(host_cc_for_libada)
1554 out_object_file=`basename $out_file .c`.o
1556 tm_file_list="options.h"
1557 tm_include_list="options.h"
1558 for f in $tm_file; do
1561 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1562 tm_include_list="${tm_include_list} $f"
1565 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1566 tm_include_list="${tm_include_list} config/$f"
1573 for f in $tm_p_file; do
1576 tm_p_file_list="${tm_p_file_list} $f"
1577 tm_p_include_list="${tm_p_include_list} $f"
1580 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1581 tm_p_include_list="${tm_p_include_list} config/$f"
1587 for f in $xm_file; do
1590 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1591 xm_include_list="${xm_include_list} $f"
1594 xm_file_list="${xm_file_list} $f"
1595 xm_include_list="${xm_include_list} $f"
1598 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1599 xm_include_list="${xm_include_list} config/$f"
1605 host_xm_include_list=
1606 for f in $host_xm_file; do
1609 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1610 host_xm_include_list="${host_xm_include_list} $f"
1613 host_xm_file_list="${host_xm_file_list} $f"
1614 host_xm_include_list="${host_xm_include_list} $f"
1617 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1618 host_xm_include_list="${host_xm_include_list} config/$f"
1624 for f in $build_xm_file; do
1627 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1628 build_xm_include_list="${build_xm_include_list} $f"
1630 auto-build.h | auto-host.h )
1631 build_xm_file_list="${build_xm_file_list} $f"
1632 build_xm_include_list="${build_xm_include_list} $f"
1635 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1636 build_xm_include_list="${build_xm_include_list} config/$f"
1641 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1642 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1643 CROSS= AC_SUBST(CROSS)
1644 ALL=all.internal AC_SUBST(ALL)
1645 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1647 if test "x$with_build_sysroot" != x; then
1648 build_system_header_dir=$with_build_sysroot'$(NATIVE_SYSTEM_HEADER_DIR)'
1650 # This value is used, even on a native system, because
1651 # CROSS_SYSTEM_HEADER_DIR is just
1652 # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
1653 build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
1656 if test x$host != x$target
1658 CROSS="-DCROSS_COMPILE"
1660 SYSTEM_HEADER_DIR=$build_system_header_dir
1661 case "$host","$target" in
1662 # Darwin crosses can use the host system's libraries and headers,
1663 # because of the fat library support. Of course, it must be the
1664 # same version of Darwin on both sides. Allow the user to
1665 # just say --target=foo-darwin without a version number to mean
1666 # "the version on this system".
1667 *-*-darwin*,*-*-darwin*)
1668 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1669 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1670 if test $hostos = $targetos -o $targetos = darwin ; then
1672 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1677 i?86-*-*,x86_64-*-* \
1678 | powerpc*-*-*,powerpc64*-*-*)
1679 CROSS="$CROSS -DNATIVE_CROSS" ;;
1681 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1682 SYSTEM_HEADER_DIR=$build_system_header_dir
1685 # If this is a cross-compiler that does not
1686 # have its own set of headers then define
1689 # If this is using newlib, without having the headers available now,
1690 # then define inhibit_libc in LIBGCC2_CFLAGS.
1691 # This prevents libgcc2 from containing any code which requires libc
1694 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1695 test x$with_newlib = xyes ; } &&
1696 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1699 AC_SUBST(inhibit_libc)
1701 # When building gcc with a cross-compiler, we need to adjust things so
1702 # that the generator programs are still built with the native compiler.
1703 # Also, we cannot run fixincludes or fix-header.
1705 # These are the normal (build=host) settings:
1706 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1707 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1708 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1710 # Possibly disable fixproto, on a per-target basis.
1711 case ${use_fixproto} in
1716 STMP_FIXPROTO=stmp-fixproto
1719 AC_SUBST(STMP_FIXPROTO)
1721 # And these apply if build != host, or we are generating coverage data
1722 if test x$build != x$host || test "x$coverage_flags" != x
1724 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1726 if test "x$TARGET_SYSTEM_ROOT" = x; then
1727 if test "x$STMP_FIXPROTO" != x; then
1728 STMP_FIXPROTO=stmp-install-fixproto
1733 # Expand extra_headers to include complete path.
1734 # This substitutes for lots of t-* files.
1736 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1737 for file in ${extra_headers} ; do
1738 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1741 # Define collect2 in Makefile.
1742 case $host_can_use_collect2 in
1744 *) collect2='collect2$(exeext)' ;;
1746 AC_SUBST([collect2])
1748 # Add a definition of USE_COLLECT2 if system wants one.
1749 case $use_collect2 in
1750 no) use_collect2= ;;
1753 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1754 xm_defines="${xm_defines} USE_COLLECT2"
1755 case $host_can_use_collect2 in
1757 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1763 # ---------------------------
1764 # Assembler & linker features
1765 # ---------------------------
1767 # Identify the assembler which will work hand-in-glove with the newly
1768 # built GCC, so that we can examine its features. This is the assembler
1769 # which will be driven by the driver program.
1771 # If build != host, and we aren't building gas in-tree, we identify a
1772 # build->target assembler and hope that it will have the same features
1773 # as the host->target assembler we'll be using.
1776 gcc_cv_gas_major_version=
1777 gcc_cv_gas_minor_version=
1778 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1779 if test -x "$DEFAULT_ASSEMBLER"; then
1780 gcc_cv_as="$DEFAULT_ASSEMBLER"
1781 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1782 && test -f ../gas/Makefile \
1783 && test x$build = x$host; then
1784 # Single tree build which includes gas. We want to prefer it
1785 # over whatever linker top-level may have detected, since
1786 # we'll use what we're building after installation anyway.
1788 _gcc_COMPUTE_GAS_VERSION
1789 gcc_cv_as=../gas/as-new$build_exeext
1790 in_tree_gas_is_elf=no
1791 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1792 || (grep 'obj_format = multi' ../gas/Makefile \
1793 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1795 in_tree_gas_is_elf=yes
1797 m4_pattern_allow([AS_FOR_TARGET])dnl
1798 elif test -x as$build_exeext; then
1799 # Build using assembler in the current directory.
1800 gcc_cv_as=./as$build_exeext
1801 elif test -x "$AS_FOR_TARGET"; then
1802 gcc_cv_as="$AS_FOR_TARGET"
1803 elif test -x "$AS" && test x$host = x$target; then
1807 gcc_AC_CHECK_TOOL(gcc_cv_as, as, ORIGINAL_AS_FOR_TARGET)
1808 AC_MSG_CHECKING(what assembler to use)
1809 case $in_tree_gas in
1811 AC_MSG_RESULT("newly built gas")
1814 AC_MSG_RESULT($gcc_cv_as)
1818 # Identify the linker which will work hand-in-glove with the newly
1819 # built GCC, so that we can examine its features. This is the linker
1820 # which will be driven by the driver program.
1822 # If build != host, and we aren't building gas in-tree, we identify a
1823 # build->target linker and hope that it will have the same features
1824 # as the host->target linker we'll be using.
1827 gcc_cv_gld_major_version=
1828 gcc_cv_gld_minor_version=
1829 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1830 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1831 if test -x "$DEFAULT_LINKER"; then
1832 gcc_cv_ld="$DEFAULT_LINKER"
1833 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1834 && test -f ../ld/Makefile \
1835 && test x$build = x$host; then
1836 # Single tree build which includes ld. We want to prefer it
1837 # over whatever linker top-level may have detected, since
1838 # we'll use what we're building after installation anyway.
1840 in_tree_ld_is_elf=no
1841 if (grep 'EMUL = .*elf' ../ld/Makefile \
1842 || grep 'EMUL = .*linux' ../ld/Makefile \
1843 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1844 in_tree_ld_is_elf=yes
1846 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
1849 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1851 if test x$gcc_cv_gld_version != x; then
1856 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1857 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1859 gcc_cv_ld=../ld/ld-new$build_exeext
1860 elif test -x collect-ld$build_exeext; then
1861 # Build using linker in the current directory.
1862 gcc_cv_ld=./collect-ld$build_exeext
1863 elif test -x "$LD_FOR_TARGET"; then
1864 gcc_cv_ld="$LD_FOR_TARGET"
1865 elif test -x "$LD" && test x$host = x$target; then
1869 gcc_AC_CHECK_TOOL(gcc_cv_ld, ld, ORIGINAL_LD_FOR_TARGET)
1870 AC_MSG_CHECKING(what linker to use)
1873 AC_MSG_RESULT("newly built ld")
1876 AC_MSG_RESULT($gcc_cv_ld)
1880 # Figure out what nm we will be using.
1881 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1884 if test -f $gcc_cv_binutils_srcdir/configure.in \
1885 && test -f ../binutils/Makefile; then
1886 # Single tree build which includes binutils.
1888 gcc_cv_nm=../binutils/nm-new$build_exeext
1889 elif test -x nm$build_exeext; then
1890 gcc_cv_nm=./nm$build_exeext
1893 gcc_AC_CHECK_TOOL(gcc_cv_nm, nm, ORIGINAL_NM_FOR_TARGET)
1894 AC_MSG_CHECKING(what nm to use)
1896 yes) AC_MSG_RESULT("newly built nm") ;;
1897 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1900 # Figure out what objdump we will be using.
1901 AC_MSG_CHECKING(what objdump to use)
1903 if test -x objdump$build_exeext; then
1904 gcc_cv_objdump=./objdump$build_exeext
1905 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1906 && test -f ../binutils/Makefile; then
1907 # Single tree build which includes binutils.
1909 gcc_cv_objdump=../binutils/objdump$build_exeext
1910 elif test "x$program_prefix" != xNONE; then
1911 gcc_cv_objdump=${program_prefix}objdump$build_exeext
1912 elif test x$build != x$host && test x$build != x$target; then
1913 gcc_cv_objdump=${target_noncanonical}-objdump$build_exeext
1915 gcc_cv_objdump=`echo objdump | \
1916 sed "${program_transform_name}"`$build_exeext
1918 case $in_tree_objdump in
1919 yes) AC_MSG_RESULT("newly built objdump") ;;
1920 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1923 # Figure out what assembler alignment features are present.
1924 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1928 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1929 [Define if your assembler supports .balign and .p2align.])])
1931 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1934 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1935 [Define if your assembler supports specifying the maximum number
1936 of bytes to skip when using the GAS .p2align command.])])
1938 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1940 [conftest_label1: .word 0
1942 conftest_label2: .word 0
1944 [if test x$gcc_cv_nm != x; then
1945 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1946 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1947 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1949 else gcc_cv_as_subsection_m1=yes
1951 rm -f conftest.nm1 conftest.nm2
1953 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1954 [Define if your assembler supports .subsection and .subsection -1 starts
1955 emitting at the beginning of your section.])])
1957 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1960 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1962 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
1965 .NSUBSPA $CODE$,COMDAT],,
1966 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
1968 # .hidden needs to be supported in both the assembler and the linker,
1969 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1970 # This is irritatingly difficult to feature test for; we have to check the
1971 # date string after the version number. If we've got an in-tree
1972 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1974 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1975 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1980 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1981 [if test $in_tree_ld = yes ; then
1983 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1984 && test $in_tree_ld_is_elf = yes; then
1985 gcc_cv_ld_hidden=yes
1988 gcc_cv_ld_hidden=yes
1989 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1990 if echo "$ld_ver" | grep GNU > /dev/null; then
1992 ld_vers=`echo $ld_ver | sed -n \
1993 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1994 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1995 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1996 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1997 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1998 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1999 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2000 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2001 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2002 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2003 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2004 if test 0"$ld_date" -lt 20020404; then
2005 if test -n "$ld_date"; then
2006 # If there was date string, but was earlier than 2002-04-04, fail
2008 elif test -z "$ld_vers"; then
2009 # If there was no date string nor ld version number, something is wrong
2012 test -z "$ld_vers_patch" && ld_vers_patch=0
2013 if test "$ld_vers_major" -lt 2; then
2015 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2016 gcc_cv_ld_hidden="no"
2017 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2025 hppa64*-*-hpux* | ia64*-*-hpux*)
2026 gcc_cv_ld_hidden=yes
2034 libgcc_visibility=no
2035 AC_SUBST(libgcc_visibility)
2036 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2037 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2038 libgcc_visibility=yes
2039 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2040 [Define if your assembler and linker support .hidden.])
2043 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2044 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2052 [# GAS versions before 2.11 do not support uleb128,
2053 # despite appearing to.
2054 # ??? There exists an elf-specific test that will crash
2055 # the assembler. Perhaps it's better to figure out whether
2056 # arbitrary sections are supported and try the test.
2057 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2058 if echo "$as_ver" | grep GNU > /dev/null; then
2060 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2061 as_major=`echo $as_ver | sed 's/\..*//'`
2062 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2064 if test $as_major -eq 2 && test $as_minor -lt 11
2066 else gcc_cv_as_leb128=yes
2069 [AC_DEFINE(HAVE_AS_LEB128, 1,
2070 [Define if your assembler supports .sleb128 and .uleb128.])])
2072 # GAS versions up to and including 2.11.0 may mis-optimize
2074 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2082 .section .eh_frame,"aw",@progbits
2084 .4byte .LECIE1-.LSCIE1
2098 .4byte .LEFDE1-.LASFDE1
2100 .4byte .LASFDE1-__FRAME_BEGIN__
2108 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2109 cat > conftest.lit <<EOF
2110 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2111 0010 01000000 12000000 18000000 00000000 ................
2112 0020 08000000 04080000 0044 .........D @&t@
2114 cat > conftest.big <<EOF
2115 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2116 0010 00000001 00000012 00000018 00000000 ................
2117 0020 00000008 04000000 0844 .........D @&t@
2119 # If the assembler didn't choke, and we can objdump,
2120 # and we got the correct data, then succeed.
2121 if test x$gcc_cv_objdump != x \
2122 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2123 | tail -3 > conftest.got \
2124 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2125 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2127 gcc_cv_as_eh_frame=yes
2128 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2129 gcc_cv_as_eh_frame=buggy
2131 # Uh oh, what do we do now?
2132 gcc_cv_as_eh_frame=no
2135 if test $gcc_cv_as_eh_frame = buggy; then
2136 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2137 [Define if your assembler mis-optimizes .eh_frame data.])
2140 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2141 [elf,2,12,0], [--fatal-warnings],
2142 [.section .rodata.str, "aMS", @progbits, 1])
2143 if test $gcc_cv_as_shf_merge = no; then
2144 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2145 [elf,2,12,0], [--fatal-warnings],
2146 [.section .rodata.str, "aMS", %progbits, 1])
2148 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2149 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2150 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2152 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2153 [elf,2,16,0], [--fatal-warnings],
2154 [.section .text,"axG",@progbits,.foo,comdat])
2155 if test $gcc_cv_as_comdat_group = yes; then
2156 gcc_cv_as_comdat_group_percent=no
2158 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2159 [elf,2,16,0], [--fatal-warnings],
2160 [.section .text,"axG",%progbits,.foo,comdat])
2162 if test $in_tree_ld != yes && test x"$ld_vers" != x; then
2164 if test 0"$ld_date" -lt 20050308; then
2165 if test -n "$ld_date"; then
2166 # If there was date string, but was earlier than 2005-03-08, fail
2168 elif test "$ld_vers_major" -lt 2; then
2170 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2174 if test $comdat_group = no; then
2175 gcc_cv_as_comdat_group=no
2176 gcc_cv_as_comdat_group_percent=no
2179 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
2180 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2181 [Define 0/1 if your assembler and linker support COMDAT groups.])
2183 # Thread-local storage - the check is heavily parametrized.
2192 .section ".tdata","awT",@progbits
2195 ldq $27,__tls_get_addr($29) !literal!1
2196 lda $16,foo($29) !tlsgd!1
2197 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2198 ldq $27,__tls_get_addr($29) !literal!2
2199 lda $16,foo($29) !tlsldm!2
2200 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2201 ldq $1,foo($29) !gotdtprel
2202 ldah $2,foo($29) !dtprelhi
2203 lda $3,foo($2) !dtprello
2204 lda $4,foo($29) !dtprel
2205 ldq $1,foo($29) !gottprel
2206 ldah $2,foo($29) !tprelhi
2207 lda $3,foo($2) !tprello
2208 lda $4,foo($29) !tprel'
2211 tls_as_opt=--fatal-warnings
2215 .section ".tdata","awT",@progbits
2227 .section ".tdata","awT",@progbits
2231 addil LT%foo-$tls_gdidx$,gp
2232 ldo RT%foo-$tls_gdidx$(%r1),%arg0
2235 addil LT%foo-$tls_ldidx$,gp
2237 ldo RT%foo-$tls_ldidx$(%r1),%arg0
2238 addil LR%foo-$tls_dtpoff$,%ret0
2239 ldo RR%foo-$tls_dtpoff$(%r1),%t1
2241 addil LT%foo-$tls_ieoff$,gp
2242 ldw RT%foo-$tls_ieoff$(%r1),%t2
2245 addil LR%foo-$tls_leoff$,%t1
2246 ldo RR%foo-$tls_leoff$(%r1),%t2'
2249 tls_as_opt=--fatal-warnings
2253 .section ".tdata","awT",@progbits
2257 leal foo@TLSGD(,%ebx,1), %eax
2258 leal foo@TLSLDM(%ebx), %eax
2259 leal foo@DTPOFF(%eax), %edx
2260 movl foo@GOTTPOFF(%ebx), %eax
2261 subl foo@GOTTPOFF(%ebx), %eax
2262 addl foo@GOTNTPOFF(%ebx), %eax
2263 movl foo@INDNTPOFF, %eax
2264 movl $foo@TPOFF, %eax
2265 subl $foo@TPOFF, %eax
2266 leal foo@NTPOFF(%ecx), %eax'
2269 tls_as_opt=--fatal-warnings
2273 .section ".tdata","awT",@progbits
2277 leaq foo@TLSGD(%rip), %rdi
2278 leaq foo@TLSLD(%rip), %rdi
2279 leaq foo@DTPOFF(%rax), %rdx
2280 movq foo@GOTTPOFF(%rip), %rax
2281 movq $foo@TPOFF, %rax'
2284 tls_as_opt=--fatal-warnings
2288 .section ".tdata","awT",@progbits
2291 addl r16 = @ltoff(@dtpmod(foo#)), gp
2292 addl r17 = @ltoff(@dtprel(foo#)), gp
2293 addl r18 = @ltoff(@tprel(foo#)), gp
2294 addl r19 = @dtprel(foo#), gp
2295 adds r21 = @dtprel(foo#), r13
2296 movl r23 = @dtprel(foo#)
2297 addl r20 = @tprel(foo#), gp
2298 adds r22 = @tprel(foo#), r13
2299 movl r24 = @tprel(foo#)'
2302 tls_as_opt=--fatal-warnings
2306 .section .tdata,"awT",@progbits
2310 addiu $4, $28, %tlsgd(x)
2311 addiu $4, $28, %tlsldm(x)
2312 lui $4, %dtprel_hi(x)
2313 addiu $4, $4, %dtprel_lo(x)
2314 lw $4, %gottprel(x)($28)
2315 lui $4, %tprel_hi(x)
2316 addiu $4, $4, %tprel_lo(x)'
2319 tls_as_opt='-32 --fatal-warnings'
2323 .section ".tdata","awT",@progbits
2331 addi 3,31,ld0@got@tlsgd
2333 addi 3,31,x1@got@tlsld
2336 addis 9,3,x2@dtprel@ha
2337 addi 9,9,x2@dtprel@l
2338 lwz 9,x3@got@tprel(31)
2341 addis 9,2,x2@tprel@ha
2342 addi 9,9,x2@tprel@l'
2345 tls_as_opt="-a32 --fatal-warnings"
2349 .section ".tdata","awT",@progbits
2357 addi 3,2,ld0@got@tlsgd
2363 addi 3,2,x1@got@tlsld
2369 addis 9,3,x2@dtprel@ha
2370 addi 9,9,x2@dtprel@l
2373 ld 9,x3@got@dtprel(2)
2379 tls_as_opt="-a64 --fatal-warnings"
2383 .section ".tdata","awT",@progbits
2392 l %r1,foo@GOTNTPOFF(%r12)
2393 l %r1,0(%r1):tls_load:foo
2394 bas %r14,0(%r1,%r13):tls_gdcall:foo
2395 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2398 tls_as_opt="-m31 --fatal-warnings"
2402 .section ".tdata","awT",@progbits
2410 lg %r1,foo@GOTNTPOFF(%r12)
2411 larl %r1,foo@INDNTPOFF
2412 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2413 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2416 tls_as_opt="-m64 -Aesame --fatal-warnings"
2418 sh-*-* | sh[34]-*-*)
2420 .section ".tdata","awT",@progbits
2430 tls_as_opt=--fatal-warnings
2434 sparc*-sun-solaris2.*)
2441 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2443 .section ".tdata",#alloc,#write,#tls
2446 sethi %tgd_hi22(foo), %o0
2447 add %o0, %tgd_lo10(foo), %o1
2448 add %l7, %o1, %o0, %tgd_add(foo)
2449 call __tls_get_addr, %tgd_call(foo)
2450 sethi %tldm_hi22(foo), %l1
2451 add %l1, %tldm_lo10(foo), %l2
2452 add %l7, %l2, %o0, %tldm_add(foo)
2453 call __tls_get_addr, %tldm_call(foo)
2454 sethi %tldo_hix22(foo), %l3
2455 xor %l3, %tldo_lox10(foo), %l4
2456 add %o0, %l4, %l5, %tldo_add(foo)
2457 sethi %tie_hi22(foo), %o3
2458 add %o3, %tie_lo10(foo), %o3
2459 ld [%l7 + %o3], %o2, %tie_ld(foo)
2460 add %g7, %o2, %o4, %tie_add(foo)
2461 sethi %tle_hix22(foo), %l1
2462 xor %l1, %tle_lox10(foo), %o5
2463 ld [%g7 + %o5], %o1'
2468 .section ".tdata","awT",@progbits
2471 sethi %tgd_hi22(foo), %o0
2472 add %o0, %tgd_lo10(foo), %o1
2473 add %l7, %o1, %o0, %tgd_add(foo)
2474 call __tls_get_addr, %tgd_call(foo)
2475 sethi %tldm_hi22(foo), %l1
2476 add %l1, %tldm_lo10(foo), %l2
2477 add %l7, %l2, %o0, %tldm_add(foo)
2478 call __tls_get_addr, %tldm_call(foo)
2479 sethi %tldo_hix22(foo), %l3
2480 xor %l3, %tldo_lox10(foo), %l4
2481 add %o0, %l4, %l5, %tldo_add(foo)
2482 sethi %tie_hi22(foo), %o3
2483 add %o3, %tie_lo10(foo), %o3
2484 ld [%l7 + %o3], %o2, %tie_ld(foo)
2485 add %g7, %o2, %o4, %tie_add(foo)
2486 sethi %tle_hix22(foo), %l1
2487 xor %l1, %tle_lox10(foo), %o5
2488 ld [%g7 + %o5], %o1'
2491 tls_as_opt="-32 --fatal-warnings"
2496 if test -z "$tls_first_major"; then
2497 : # If we don't have a check, assume no support.
2499 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2500 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2501 [AC_DEFINE(HAVE_AS_TLS, 1,
2502 [Define if your assembler supports thread-local storage.])])
2505 # Target-specific assembler checks.
2507 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2508 gcc_cv_ld_static_dynamic=no
2509 if test $in_tree_ld = yes ; then
2510 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2511 gcc_cv_ld_static_dynamic=yes
2513 elif test x$gcc_cv_ld != x; then
2514 # Check if linker supports -Bstatic/-Bdynamic option
2515 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2516 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2517 gcc_cv_ld_static_dynamic=yes
2520 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2521 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2522 [Define if your linker supports -Bstatic/-Bdynamic option.])
2524 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2526 if test x"$demangler_in_ld" = xyes; then
2527 AC_MSG_CHECKING(linker --demangle support)
2528 gcc_cv_ld_demangle=no
2529 if test $in_tree_ld = yes; then
2530 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2531 gcc_cv_ld_demangle=yes
2533 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2534 # Check if the GNU linker supports --demangle option
2535 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2536 gcc_cv_ld_demangle=yes
2539 if test x"$gcc_cv_ld_demangle" = xyes; then
2540 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2541 [Define if your linker supports --demangle option.])
2543 AC_MSG_RESULT($gcc_cv_ld_demangle)
2547 # All TARGET_ABI_OSF targets.
2548 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2549 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2550 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2553 extbl $3, $2, $3 !lituse_bytoff!1
2554 ldq $2, a($29) !literal!1
2555 ldq $4, b($29) !literal!2
2556 ldq_u $3, 0($2) !lituse_base!1
2557 ldq $27, f($29) !literal!5
2558 jsr $26, ($27), f !lituse_jsr!5
2559 ldah $29, 0($26) !gpdisp!3
2560 lda $0, c($29) !gprel
2561 ldah $1, d($29) !gprelhigh
2562 lda $1, d($1) !gprellow
2563 lda $29, 0($29) !gpdisp!3],,
2564 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2565 [Define if your assembler supports explicit relocations.])])
2566 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2567 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2570 ldq $27, a($29) !literal!1
2571 jsr $26, ($27), a !lituse_jsrdirect!1],,
2572 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2573 [Define if your assembler supports the lituse_jsrdirect relocation.])])
2577 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2578 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2579 [-no-mul-bug-abort], [.text],,
2580 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2581 [Define if your assembler supports the -no-mul-bug-abort option.])])
2585 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2586 [.register %g2, #scratch],,
2587 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2588 [Define if your assembler supports .register.])])
2590 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2592 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2593 [Define if your assembler supports -relax option.])])
2595 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2596 gcc_cv_as_sparc_ua_pcrel,,
2604 .uaword %r_disp32(foo)],
2605 [if test x$gcc_cv_ld != x \
2606 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2607 gcc_cv_as_sparc_ua_pcrel=yes
2610 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2611 [Define if your assembler and linker support unaligned PC relative relocs.])
2613 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2614 gcc_cv_as_sparc_ua_pcrel_hidden,,
2619 .uaword %r_disp32(foo)
2620 .byte 0x32, 0x33, 0x34
2625 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2626 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2627 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2628 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2629 if $gcc_cv_objdump -R conftest 2> /dev/null \
2630 | grep 'DISP32' > /dev/null 2>&1; then
2633 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2637 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2638 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2639 ]) # unaligned pcrel relocs
2641 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2642 gcc_cv_as_sparc_offsetable_lo10,,
2645 or %g1, %lo(ab) + 12, %g1
2646 or %g1, %lo(ab + 12), %g1],
2647 [if test x$gcc_cv_objdump != x \
2648 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2649 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2650 gcc_cv_as_sparc_offsetable_lo10=yes
2652 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2653 [Define if your assembler supports offsetable %lo().])])
2657 i[34567]86-*-* | x86_64-*-*)
2660 cygwin* | pe | mingw32*)
2661 # Used for DWARF 2 in PE
2662 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2663 gcc_cv_as_ix86_pe_secrel32,
2669 [if test x$gcc_cv_ld != x \
2670 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2671 gcc_cv_as_ix86_pe_secrel32=yes
2674 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2675 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2679 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2680 gcc_cv_as_ix86_filds_fists,
2681 [2,9,0],, [filds mem; fists mem],,
2682 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2683 [Define if your assembler uses the new HImode fild and fist notation.])])
2685 gcc_GAS_CHECK_FEATURE([cmov syntax],
2686 gcc_cv_as_ix86_cmov_sun_syntax,,,
2687 [cmovl.l %edx, %eax],,
2688 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2689 [Define if your assembler supports the Sun syntax for cmov.])])
2691 # This one is used unconditionally by i386.[ch]; it is to be defined
2692 # to 1 if the feature is present, 0 otherwise.
2693 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2694 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2700 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2701 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2702 [Define true if the assembler supports '.long foo@GOTOFF'.])
2706 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2707 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2709 addl r15 = @ltoffx(x#), gp
2711 ld8.mov r16 = [[r15]], x#],,
2712 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2713 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2719 *-*-aix*) conftest_s=' .machine "pwr5"
2723 gcc_GAS_CHECK_FEATURE([.machine directive support],
2724 gcc_cv_as_machine_directive,,,
2725 [ .machine ppc7400])
2726 if test x$gcc_cv_as_machine_directive != xyes; then
2727 echo "*** This target requires an assembler supporting \".machine\"" >&2
2728 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2729 test x$build = x$target && exit 1
2733 *) conftest_s=' .machine power4
2738 gcc_GAS_CHECK_FEATURE([mfcr field support],
2739 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2741 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2742 [Define if your assembler supports mfcr field.])])
2745 *-*-aix*) conftest_s=' .machine "pwr5"
2748 *) conftest_s=' .machine power5
2753 gcc_GAS_CHECK_FEATURE([popcntb support],
2754 gcc_cv_as_powerpc_popcntb, [2,17,0],,
2756 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
2757 [Define if your assembler supports popcntb field.])])
2760 *-*-aix*) conftest_s=' .csect .text[[PR]]
2762 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
2766 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
2767 *) conftest_s=' .text
2769 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
2772 gcc_GAS_CHECK_FEATURE([rel16 relocs],
2773 gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
2775 [AC_DEFINE(HAVE_AS_REL16, 1,
2776 [Define if your assembler supports R_PPC_REL16 relocs.])])
2780 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2781 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2782 [ lw $4,%gp_rel(foo)($4)],,
2783 [if test x$target_cpu_default = x
2784 then target_cpu_default=MASK_EXPLICIT_RELOCS
2785 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2788 if test x$gas_flag = xyes \
2789 || test x"$host" != x"$build" \
2790 || test ! -x "$gcc_cv_as" \
2791 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2794 echo "*** This configuration requires the GNU assembler" >&2
2799 # ??? Not all targets support dwarf2 debug_line, even within a version
2800 # of gas. Moreover, we need to emit a valid instruction to trigger any
2801 # info to the output file. So, as supported targets are added to gas 2.11,
2802 # add some instruction here to (also) show we expect this might work.
2803 # ??? Once 2.11 is released, probably need to add first known working
2804 # version to the per-target configury.
2806 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2807 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2808 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2811 ia64*-*-* | s390*-*-*)
2818 if test x"$insn" != x; then
2820 .file 1 \"conftest.s\"
2823 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2824 gcc_cv_as_dwarf2_debug_line,
2825 [elf,2,11,0],, [$conftest_s],
2826 [if test x$gcc_cv_objdump != x \
2827 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2828 | grep debug_line > /dev/null 2>&1; then
2829 gcc_cv_as_dwarf2_debug_line=yes
2832 # The .debug_line file table must be in the exact order that
2833 # we specified the files, since these indices are also used
2834 # by DW_AT_decl_file. Approximate this test by testing if
2835 # the assembler bitches if the same index is assigned twice.
2836 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2837 gcc_cv_as_dwarf2_file_buggy,,,
2841 if test $gcc_cv_as_dwarf2_debug_line = yes \
2842 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2843 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2844 [Define if your assembler supports dwarf2 .file/.loc directives,
2845 and preserves file table indices exactly as given.])
2848 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2849 gcc_cv_as_gdwarf2_flag,
2850 [elf,2,11,0], [--gdwarf2], [$insn],,
2851 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2852 [Define if your assembler supports the --gdwarf2 option.])])
2854 gcc_GAS_CHECK_FEATURE([--gstabs option],
2855 gcc_cv_as_gstabs_flag,
2856 [elf,2,11,0], [--gstabs], [$insn],
2857 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2858 # and warns about it, but still exits successfully. So check for
2860 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2862 else gcc_cv_as_gstabs_flag=yes
2864 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2865 [Define if your assembler supports the --gstabs option.])])
2868 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2869 gcc_cv_ld_ro_rw_mix=unknown
2870 if test $in_tree_ld = yes ; then
2871 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2872 && test $in_tree_ld_is_elf = yes; then
2873 gcc_cv_ld_ro_rw_mix=read-write
2875 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2876 echo '.section myfoosect, "a"' > conftest1.s
2877 echo '.section myfoosect, "aw"' > conftest2.s
2878 echo '.byte 1' >> conftest2.s
2879 echo '.section myfoosect, "a"' > conftest3.s
2880 echo '.byte 0' >> conftest3.s
2881 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2882 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2883 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2884 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2885 conftest2.o conftest3.o > /dev/null 2>&1; then
2886 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2887 | sed -e '/myfoosect/!d' -e N`
2888 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2889 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2890 gcc_cv_ld_ro_rw_mix=read-only
2892 gcc_cv_ld_ro_rw_mix=read-write
2897 rm -f conftest.* conftest[123].*
2900 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2901 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2902 [Define if your linker links a mix of read-only
2903 and read-write sections into a read-write section.])
2905 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2907 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2908 gcc_cv_ld_eh_frame_hdr=no
2909 if test $in_tree_ld = yes ; then
2910 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2911 && test $in_tree_ld_is_elf = yes; then
2912 gcc_cv_ld_eh_frame_hdr=yes
2914 elif test x$gcc_cv_ld != x; then
2915 # Check if linker supports --eh-frame-hdr option
2916 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2917 gcc_cv_ld_eh_frame_hdr=yes
2920 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
2921 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2922 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2923 [Define if your linker supports --eh-frame-hdr option.])
2925 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2927 AC_MSG_CHECKING(linker position independent executable support)
2929 if test $in_tree_ld = yes ; then
2930 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2931 && test $in_tree_ld_is_elf = yes; then
2934 elif test x$gcc_cv_ld != x; then
2935 # Check if linker supports -pie option
2936 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2940 if test x"$gcc_cv_ld_pie" = xyes; then
2941 AC_DEFINE(HAVE_LD_PIE, 1,
2942 [Define if your linker supports -pie option.])
2944 AC_MSG_RESULT($gcc_cv_ld_pie)
2950 AC_CACHE_CHECK(linker --as-needed support,
2951 gcc_cv_ld_as_needed,
2952 [gcc_cv_ld_as_needed=no
2953 if test $in_tree_ld = yes ; then
2954 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2955 && test $in_tree_ld_is_elf = yes; then
2956 gcc_cv_ld_as_needed=yes
2958 elif test x$gcc_cv_ld != x; then
2959 # Check if linker supports --as-needed and --no-as-needed options
2960 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2961 gcc_cv_ld_as_needed=yes
2965 if test x"$gcc_cv_ld_as_needed" = xyes; then
2966 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2967 [Define if your linker supports --as-needed and --no-as-needed options.])
2971 powerpc64*-*-linux*)
2972 AC_CACHE_CHECK(linker support for omitting dot symbols,
2973 gcc_cv_ld_no_dot_syms,
2974 [gcc_cv_ld_no_dot_syms=no
2975 if test $in_tree_ld = yes ; then
2976 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
2977 gcc_cv_ld_no_dot_syms=yes
2979 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
2980 cat > conftest1.s <<EOF
2984 cat > conftest2.s <<EOF
2985 .section ".opd","aw"
2990 .quad .LEfoo,.TOC.@tocbase,0
2996 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
2997 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
2998 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
2999 gcc_cv_ld_no_dot_syms=yes
3001 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3004 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3005 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3006 [Define if your PowerPC64 linker only needs function descriptor syms.])
3011 AC_CACHE_CHECK(linker --sysroot support,
3013 [gcc_cv_ld_sysroot=no
3014 if test $in_tree_ld = yes ; then
3015 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
3016 gcc_cv_ld_sysroot=yes
3018 elif test x$gcc_cv_ld != x; then
3019 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3020 gcc_cv_ld_sysroot=yes
3023 if test x"$gcc_cv_ld_sysroot" = xyes; then
3024 AC_DEFINE(HAVE_LD_SYSROOT, 1,
3025 [Define if your linker supports --sysroot.])
3028 if test x$with_sysroot = x && test x$host = x$target \
3029 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3030 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3031 [Define to PREFIX/include if cpp should also search that directory.])
3034 # Test for stack protector support in target C library.
3037 AC_CACHE_CHECK(__stack_chk_fail in target GNU C library,
3038 gcc_cv_libc_provides_ssp,
3039 [gcc_cv_libc_provides_ssp=no
3040 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3041 if test "x$with_sysroot" = x; then
3042 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3043 elif test "x$with_sysroot" = xyes; then
3044 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3046 glibc_header_dir="${with_sysroot}/usr/include"
3049 glibc_header_dir=/usr/include
3051 # glibc 2.4 and later provides __stack_chk_fail and
3052 # either __stack_chk_guard, or TLS access to stack guard canary.
3053 if test -f $glibc_header_dir/features.h \
3054 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
3055 $glibc_header_dir/features.h > /dev/null; then
3056 if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
3057 $glibc_header_dir/features.h > /dev/null; then
3058 gcc_cv_libc_provides_ssp=yes
3059 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
3060 $glibc_header_dir/features.h > /dev/null \
3061 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
3062 $glibc_header_dir/features.h > /dev/null; then
3063 gcc_cv_libc_provides_ssp=yes
3066 *) gcc_cv_libc_provides_ssp=no ;;
3068 if test x$gcc_cv_libc_provides_ssp = xyes; then
3069 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
3070 [Define if your target C library provides stack protector support])
3073 # Find out what GC implementation we want, or may, use.
3075 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3083 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3086 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3091 echo "Using $GGC for garbage collection."
3093 # Use the system's zlib library.
3095 zlibinc="-I\$(srcdir)/../zlib"
3096 AC_ARG_WITH(system-zlib,
3097 [ --with-system-zlib use installed libz],
3104 dnl Very limited version of automake's enable-maintainer-mode
3106 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3107 dnl maintainer-mode is disabled by default
3108 AC_ARG_ENABLE(maintainer-mode,
3109 [ --enable-maintainer-mode
3110 enable make rules and dependencies not useful
3111 (and sometimes confusing) to the casual installer],
3112 maintainer_mode=$enableval,
3115 AC_MSG_RESULT($maintainer_mode)
3117 if test "$maintainer_mode" = "yes"; then
3128 # Make empty files to contain the specs and options for each language.
3129 # Then add #include lines to for a compiler that has specs and/or options.
3134 for subdir in . $subdirs
3136 if test -f $srcdir/$subdir/lang.opt; then
3137 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3139 if test -f $srcdir/$subdir/lang-specs.h; then
3140 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3142 if test -f $srcdir/$subdir/$subdir-tree.def; then
3143 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3147 # These (without "all_") are set in each config-lang.in.
3148 # `language' must be a single word so is spelled singularly.
3153 all_outputs='Makefile gccbug mklibgcc libada-mk'
3154 # List of language makefile fragments.
3156 # List of language subdirectory makefiles. Deprecated.
3158 # Files for gengtype
3159 all_gtfiles="$target_gtfiles"
3160 # Files for gengtype with language
3161 all_gtfiles_files_langs=
3162 all_gtfiles_files_files=
3164 # Add the language fragments.
3165 # Languages are added via two mechanisms. Some information must be
3166 # recorded in makefile variables, these are defined in config-lang.in.
3167 # We accumulate them and plug them into the main Makefile.
3168 # The other mechanism is a set of hooks for each of the main targets
3169 # like `clean', `install', etc.
3171 language_hooks="Make-hooks"
3181 . ${srcdir}/$s/config-lang.in
3182 if test "x$language" = x
3184 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3187 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3188 if test -f ${srcdir}/$s/Makefile.in
3189 then all_lang_makefiles="$s/Makefile"
3191 all_languages="$all_languages $language"
3192 if test "x$boot_language" = xyes
3194 all_boot_languages="$all_boot_languages $language"
3196 all_compilers="$all_compilers $compilers"
3197 all_stagestuff="$all_stagestuff $stagestuff"
3198 all_outputs="$all_outputs $outputs"
3199 all_gtfiles="$all_gtfiles $gtfiles"
3202 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3203 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3207 # Pick up gtfiles for c
3210 . ${srcdir}/c-config-lang.in
3211 all_gtfiles="$all_gtfiles $gtfiles"
3214 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3215 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3219 for language in $all_languages
3221 check_languages="$check_languages check-$language"
3224 # We link each language in with a set of hooks, reached indirectly via
3229 target_list="all.build all.cross start.encap rest.encap tags \
3230 install-normal install-common install-man \
3231 uninstall info man srcextra srcman srcinfo \
3232 mostlyclean clean distclean maintainer-clean \
3233 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3234 for t in $target_list
3237 for lang in $all_languages
3241 echo "lang.$t: $x" >> Make-hooks
3250 echo "dir ." > .gdbinit
3251 echo "dir ${srcdir}" >> .gdbinit
3252 if test x$gdb_needs_out_file_path = xyes
3254 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3256 if test "x$subdirs" != x; then
3259 echo "dir ${srcdir}/$s" >> .gdbinit
3262 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3264 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3265 # absolute path for gcc_tooldir based on inserting the number of up-directory
3266 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3267 # $(libsubdir)/@(unlibsubdir) based path.
3268 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3269 # make and thus we'd get different behavior depending on where we built the
3271 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3272 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3274 changequote(<<, >>)dnl
3275 # An explanation of the sed strings:
3276 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3277 # -e 's|/$||' match a trailing forward slash and eliminates it
3278 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3279 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3281 # (*) Note this pattern overwrites the first character of the string
3282 # with a forward slash if one is not already present. This is not a
3283 # problem because the exact names of the sub-directories concerned is
3284 # unimportant, just the number of them matters.
3286 # The practical upshot of these patterns is like this:
3288 # prefix exec_prefix result
3289 # ------ ----------- ------
3291 # /foo/ /foo/bar ../
3292 # /foo /foo/bar/ ../
3293 # /foo/ /foo/bar/ ../
3294 # /foo /foo/bar/ugg ../../
3297 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3298 changequote([, ])dnl
3300 AC_SUBST(gcc_tooldir)
3303 # Find a directory in which to install a shared libgcc.
3305 AC_ARG_ENABLE(version-specific-runtime-libs,
3306 [ --enable-version-specific-runtime-libs
3307 specify that runtime libraries should be
3308 installed in a compiler-specific directory])
3310 AC_ARG_WITH(slibdir,
3311 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3312 slibdir="$with_slibdir",
3313 if test "${enable_version_specific_runtime_libs+set}" = set; then
3314 slibdir='$(libsubdir)'
3315 elif test "$host" != "$target"; then
3316 slibdir='$(build_tooldir)/lib'
3322 objdir=`${PWDCMD-pwd}`
3325 # Substitute configuration variables
3328 AC_SUBST(all_boot_languages)
3329 AC_SUBST(all_compilers)
3330 AC_SUBST(all_gtfiles)
3331 AC_SUBST(all_gtfiles_files_langs)
3332 AC_SUBST(all_gtfiles_files_files)
3333 AC_SUBST(all_lang_makefrags)
3334 AC_SUBST(all_lang_makefiles)
3335 AC_SUBST(all_languages)
3336 AC_SUBST(all_stagestuff)
3337 AC_SUBST(build_exeext)
3338 AC_SUBST(build_install_headers_dir)
3339 AC_SUBST(build_xm_file_list)
3340 AC_SUBST(build_xm_include_list)
3341 AC_SUBST(build_xm_defines)
3342 AC_SUBST(check_languages)
3343 AC_SUBST(cc_set_by_configure)
3344 AC_SUBST(quoted_cc_set_by_configure)
3345 AC_SUBST(cpp_install_dir)
3346 AC_SUBST(xmake_file)
3347 AC_SUBST(tmake_file)
3348 AC_SUBST(extra_gcc_objs)
3349 AC_SUBST(extra_headers_list)
3350 AC_SUBST(extra_objs)
3351 AC_SUBST(extra_parts)
3352 AC_SUBST(extra_passes)
3353 AC_SUBST(extra_programs)
3354 AC_SUBST(float_h_file)
3355 AC_SUBST(gcc_config_arguments)
3356 AC_SUBST(gcc_gxx_include_dir)
3357 AC_SUBST(libstdcxx_incdir)
3358 AC_SUBST(host_exeext)
3359 AC_SUBST(host_xm_file_list)
3360 AC_SUBST(host_xm_include_list)
3361 AC_SUBST(host_xm_defines)
3362 AC_SUBST(out_host_hook_obj)
3364 AC_SUBST(lang_opt_files)
3365 AC_SUBST(lang_specs_files)
3366 AC_SUBST(lang_tree_files)
3367 AC_SUBST(local_prefix)
3369 AC_SUBST(objc_boehm_gc)
3371 AC_SUBST(out_object_file)
3372 AC_SUBST(stage_prefix_set_by_configure)
3373 AC_SUBST(quoted_stage_prefix_set_by_configure)
3374 AC_SUBST(thread_file)
3375 AC_SUBST(tm_file_list)
3376 AC_SUBST(tm_include_list)
3377 AC_SUBST(tm_defines)
3378 AC_SUBST(tm_p_file_list)
3379 AC_SUBST(tm_p_include_list)
3380 AC_SUBST(xm_file_list)
3381 AC_SUBST(xm_include_list)
3382 AC_SUBST(xm_defines)
3383 AC_SUBST(c_target_objs)
3384 AC_SUBST(cxx_target_objs)
3385 AC_SUBST(target_cpu_default)
3387 AC_SUBST_FILE(language_hooks)
3390 if test x${build} = x${host} ; then
3391 if test x${host} = x${target} ; then
3392 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3394 echo "Links are now set up to build a cross-compiler" 1>&2
3395 echo " from ${host} to ${target}." 1>&2
3398 if test x${host} = x${target} ; then
3399 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3400 echo " for ${target}." 1>&2
3402 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3403 echo " from ${host} to ${target}." 1>&2
3407 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3408 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3410 # Configure the subdirectories
3411 # AC_CONFIG_SUBDIRS($subdirs)
3413 # Create the Makefile
3414 # and configure language subdirectories
3415 AC_CONFIG_FILES($all_outputs)
3417 AC_CONFIG_COMMANDS([default],
3419 case ${CONFIG_HEADERS} in
3420 *auto-host.h:config.in*)
3423 # Make sure all the subdirs exist.
3424 for d in $subdirs doc build
3426 test -d $d || mkdir $d
3428 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3429 # bootstrapping and the installation procedure can still use
3430 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3431 # FLAGS_TO_PASS has been modified to solve the problem there.
3432 # This is virtually a duplicate of what happens in configure.lang; we do
3433 # an extra check to make sure this only happens if ln -s can be used.
3436 for d in ${subdirs} ; do
3437 STARTDIR=`${PWDCMD-pwd}`
3439 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3442 $LN_S ../$t $t 2>/dev/null
3449 [subdirs='$subdirs'])