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, 59 Temple Place - Suite 330, 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 # Determine the host, build, and target systems
38 # Determine the noncanonical target name, for directory use.
39 _GCC_TOPLEV_NONCANONICAL_TARGET
41 # Determine the target- and build-specific subdirectories
44 # Set program_transform_name
47 # Check for bogus environment variables.
48 # Test if LIBRARY_PATH contains the notation for the current directory
49 # since this would lead to problems installing/building glibc.
50 # LIBRARY_PATH contains the current directory if one of the following
52 # - one of the terminals (":" and ";") is the first or last sign
53 # - two terminals occur directly after each other
54 # - the path contains an element with a dot in it
55 AC_MSG_CHECKING(LIBRARY_PATH variable)
57 case ${LIBRARY_PATH} in
58 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
59 library_path_setting="contains current directory"
62 library_path_setting="ok"
66 AC_MSG_RESULT($library_path_setting)
67 if test "$library_path_setting" != "ok"; then
69 *** LIBRARY_PATH shouldn't contain the current directory when
70 *** building gcc. Please change the environment variable
71 *** and run configure again.])
74 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
75 # since this would lead to problems installing/building glibc.
76 # GCC_EXEC_PREFIX contains the current directory if one of the following
78 # - one of the terminals (":" and ";") is the first or last sign
79 # - two terminals occur directly after each other
80 # - the path contains an element with a dot in it
81 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
83 case ${GCC_EXEC_PREFIX} in
84 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
85 gcc_exec_prefix_setting="contains current directory"
88 gcc_exec_prefix_setting="ok"
92 AC_MSG_RESULT($gcc_exec_prefix_setting)
93 if test "$gcc_exec_prefix_setting" != "ok"; then
95 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
96 *** building gcc. Please change the environment variable
97 *** and run configure again.])
104 # Specify the local prefix
106 AC_ARG_WITH(local-prefix,
107 [ --with-local-prefix=DIR specifies directory to put local include],
108 [case "${withval}" in
109 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
111 *) local_prefix=$with_local_prefix ;;
114 # Default local prefix if it is empty
115 if test x$local_prefix = x; then
116 local_prefix=/usr/local
119 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
120 # passed in by the toplevel make and thus we'd get different behavior
121 # depending on where we built the sources.
123 # Specify the g++ header file directory
124 AC_ARG_WITH(gxx-include-dir,
125 [ --with-gxx-include-dir=DIR
126 specifies directory to put g++ header files],
127 [case "${withval}" in
128 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
130 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
133 if test x${gcc_gxx_include_dir} = x; then
134 if test x${enable_version_specific_runtime_libs} = xyes; then
135 gcc_gxx_include_dir='${libsubdir}/include/c++'
137 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
138 changequote(<<, >>)dnl
139 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
144 AC_ARG_WITH(cpp_install_dir,
145 [ --with-cpp-install-dir=DIR
146 install the user visible C preprocessor in DIR
147 (relative to PREFIX) as well as PREFIX/bin],
148 [if test x$withval = xyes; then
149 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
150 elif test x$withval != xno; then
151 cpp_install_dir=$withval
154 # We would like to our source tree to be readonly. However when releases or
155 # pre-releases are generated, the flex/bison generated files as well as the
156 # various formats of manuals need to be included along with the rest of the
157 # sources. Therefore we have --enable-generated-files-in-srcdir to do
160 AC_MSG_CHECKING([whether to place generated files in the source directory])
161 dnl generated-files-in-srcdir is disabled by default
162 AC_ARG_ENABLE(generated-files-in-srcdir,
163 [ --enable-generated-files-in-srcdir
164 put copies of generated files in source dir
165 intended for creating source tarballs for users
166 without texinfo bison or flex.],
167 generated_files_in_srcdir=$enableval,
168 generated_files_in_srcdir=no)
170 AC_MSG_RESULT($generated_files_in_srcdir)
172 if test "$generated_files_in_srcdir" = "yes"; then
179 # -------------------
180 # Find default linker
181 # -------------------
185 [ --with-gnu-ld arrange to work with GNU ld.],
186 gnu_ld_flag="$with_gnu_ld",
189 # With pre-defined ld
191 [ --with-ld arrange to use the specified ld (full pathname)],
192 DEFAULT_LINKER="$with_ld")
193 if test x"${DEFAULT_LINKER+set}" = x"set"; then
194 if test ! -x "$DEFAULT_LINKER"; then
195 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
196 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
199 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
200 [Define to enable the use of a default linker.])
203 AC_MSG_CHECKING([whether a default linker was specified])
204 if test x"${DEFAULT_LINKER+set}" = x"set"; then
205 if test x"$gnu_ld_flag" = x"no"; then
206 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
208 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
214 # ----------------------
215 # Find default assembler
216 # ----------------------
220 [ --with-gnu-as arrange to work with GNU as],
221 gas_flag="$with_gnu_as",
225 [ --with-as arrange to use the specified as (full pathname)],
226 DEFAULT_ASSEMBLER="$with_as")
227 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
228 if test ! -x "$DEFAULT_ASSEMBLER"; then
229 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
230 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
233 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
234 [Define to enable the use of a default assembler.])
237 AC_MSG_CHECKING([whether a default assembler was specified])
238 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
239 if test x"$gas_flag" = x"no"; then
240 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
242 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
252 # If a non-executable a.out is present (e.g. created by GNU as above even if
253 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
254 # file, even when creating an executable, so an execution test fails.
255 # Remove possible default executable files to avoid this.
257 # FIXME: This really belongs into AC_PROG_CC and can be removed once
258 # Autoconf includes it.
259 rm -f a.out a.exe b.out
261 # Find the native compiler
264 # autoconf is lame and doesn't give us any substitution variable for this.
265 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
266 NO_MINUS_C_MINUS_O=yes
268 OUTPUT_OPTION='-o $@'
270 AC_SUBST(NO_MINUS_C_MINUS_O)
271 AC_SUBST(OUTPUT_OPTION)
273 # -------------------------
274 # Check C compiler features
275 # -------------------------
277 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
278 ac_cv_prog_cc_no_long_long,
279 [save_CFLAGS="$CFLAGS"
280 CFLAGS="-Wno-long-long"
281 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
282 ac_cv_prog_cc_no_long_long=no)
283 CFLAGS="$save_CFLAGS"])
291 # sizeof(char) is 1 by definition.
292 AC_COMPILE_CHECK_SIZEOF(void *)
293 AC_COMPILE_CHECK_SIZEOF(short)
294 AC_COMPILE_CHECK_SIZEOF(int)
295 AC_COMPILE_CHECK_SIZEOF(long)
296 if test $ac_cv_c_long_long = yes; then
297 AC_COMPILE_CHECK_SIZEOF(long long)
299 if test $ac_cv_c___int64 = yes; then
300 AC_COMPILE_CHECK_SIZEOF(__int64)
307 # See if GNAT has been installed
310 # ---------------------
311 # Warnings and checking
312 # ---------------------
315 if test $ac_cv_prog_cc_no_long_long = yes ; then
316 strict1_warn="-pedantic -Wno-long-long"
318 AC_SUBST(strict1_warn)
320 # If the native compiler is GCC, we can enable warnings even in stage1.
321 # That's useful for people building cross-compilers, or just running a
324 if test "x$GCC" = "xyes"; then
325 warn_cflags='$(GCC_WARN_CFLAGS)'
327 AC_SUBST(warn_cflags)
329 # Enable -Werror in bootstrap stage2 and later.
330 # Change the default to "no" on release branches.
331 AC_ARG_ENABLE(werror,
332 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
334 if test x$enable_werror = xyes ; then
339 # Enable expensive internal checks
340 AC_ARG_ENABLE(checking,
341 [ --enable-checking[=LIST]
342 enable expensive run-time checks. With LIST,
343 enable only specific categories of checks.
344 Categories are: misc,tree,rtl,rtlflag,gc,gcac,fold;
345 default is no checking],
351 ac_gc_always_collect=
353 case "${enableval}" in
354 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
355 ac_rtlflag_checking=1 ;;
357 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
358 set fnord $enableval; shift
363 misc) ac_checking=1 ;;
364 tree) ac_tree_checking=1 ;;
365 rtlflag) ac_rtlflag_checking=1 ;;
366 rtl) ac_rtl_checking=1 ;;
367 gc) ac_gc_checking=1 ;;
368 gcac) ac_gc_always_collect=1 ;;
369 fold) ac_fold_checking=1 ;;
370 valgrind) ac_checking_valgrind=1 ;;
371 *) AC_MSG_ERROR(unknown check category $check) ;;
377 # By default, disable all checks for release versions of GCC.
378 [ac_checking=; ac_tree_checking=; ac_gc_checking=; ac_rtlflag_checking=;])
380 if test x$ac_checking != x ; then
381 AC_DEFINE(ENABLE_CHECKING, 1,
382 [Define if you want more run-time sanity checks. This one gets a grab
383 bag of miscellaneous but relatively cheap checks.])
384 nocommon_flag=-fno-common
386 AC_SUBST(nocommon_flag)
387 if test x$ac_tree_checking != x ; then
388 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
389 [Define if you want all operations on trees (the basic data
390 structure of the front ends) to be checked for dynamic type safety
391 at runtime. This is moderately expensive.])
393 if test x$ac_rtl_checking != x ; then
394 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
395 [Define if you want all operations on RTL (the basic data structure
396 of the optimizer and back end) to be checked for dynamic type safety
397 at runtime. This is quite expensive.])
399 if test x$ac_rtlflag_checking != x ; then
400 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
401 [Define if you want RTL flag accesses to be checked against the RTL
402 codes that are supported for each access macro. This is relatively
405 if test x$ac_gc_checking != x ; then
406 AC_DEFINE(ENABLE_GC_CHECKING, 1,
407 [Define if you want the garbage collector to do object poisoning and
408 other memory allocation checks. This is quite expensive.])
410 if test x$ac_gc_always_collect != x ; then
411 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
412 [Define if you want the garbage collector to operate in maximally
413 paranoid mode, validating the entire heap and collecting garbage at
414 every opportunity. This is extremely expensive.])
416 if test x$ac_fold_checking != x ; then
417 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
418 [Define if you want fold checked that it never destructs its argument.
419 This is quite expensive.])
421 valgrind_path_defines=
424 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
425 dnl # an if statement. This was the source of very frustrating bugs
426 dnl # in converting to autoconf 2.5x!
427 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
429 if test x$ac_checking_valgrind != x ; then
430 # It is certainly possible that there's valgrind but no valgrind.h.
431 # GCC relies on making annotations so we must have both.
432 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
434 [#include <valgrind/memcheck.h>
435 #ifndef VALGRIND_DISCARD
436 #error VALGRIND_DISCARD not defined
438 [gcc_cv_header_valgrind_memcheck_h=yes],
439 [gcc_cv_header_valgrind_memcheck_h=no])
440 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
441 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
443 [#include <memcheck.h>
444 #ifndef VALGRIND_DISCARD
445 #error VALGRIND_DISCARD not defined
447 [gcc_cv_header_memcheck_h=yes],
448 gcc_cv_header_memcheck_h=no)
449 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
450 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
451 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
452 if test "x$valgrind_path" = "x" \
453 || (test $have_valgrind_h = no \
454 && test $gcc_cv_header_memcheck_h = no \
455 && test $gcc_cv_header_valgrind_memcheck_h = no); then
456 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
458 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
459 valgrind_command="$valgrind_path -q"
460 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
461 [Define if you want to run subprograms and generated programs
462 through valgrind (a memory checker). This is extremely expensive.])
463 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
464 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
465 [Define if valgrind's valgrind/memcheck.h header is installed.])
467 if test $gcc_cv_header_memcheck_h = yes; then
468 AC_DEFINE(HAVE_MEMCHECK_H, 1,
469 [Define if valgrind's memcheck.h header is installed.])
472 AC_SUBST(valgrind_path_defines)
473 AC_SUBST(valgrind_command)
475 # Enable code coverage collection
476 AC_ARG_ENABLE(coverage,
477 [ --enable-coverage[=LEVEL]
478 enable compiler\'s code coverage collection.
479 Use to measure compiler performance and locate
480 unused parts of the compiler. With LEVEL, specify
481 optimization. Values are opt, noopt,
483 [case "${enableval}" in
485 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
488 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
491 AC_MSG_ERROR(unknown coverage setting $enableval)
495 AC_SUBST(coverage_flags)
497 AC_ARG_ENABLE(gather-detailed-mem-stats,
498 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
499 [enable_gather_detailed_mem_stats=no])
500 if test x$enable_gather_detailed_mem_stats = xyes ; then
501 AC_DEFINE(GATHER_STATISTICS, 1,
502 [Define to enable detailed memory allocation stats gathering.])
505 # -------------------------------
506 # Miscenalleous configure options
507 # -------------------------------
511 [ --with-stabs arrange to use stabs instead of host debug format],
515 # Determine whether or not multilibs are enabled.
516 AC_ARG_ENABLE(multilib,
517 [ --enable-multilib enable library support for multiple ABIs],
518 [], [enable_multilib=yes])
519 AC_SUBST(enable_multilib)
521 # Enable __cxa_atexit for C++.
522 AC_ARG_ENABLE(__cxa_atexit,
523 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
527 # Pass with no value to take the default
528 # Pass with a value to specify a thread package
529 AC_ARG_ENABLE(threads,
530 [ --enable-threads enable thread usage for target GCC
531 --enable-threads=LIB use LIB thread package for target GCC],,
533 # Save in case it gets overwritten in config.gcc
534 enable_threads_flag=$enable_threads
536 AC_ARG_ENABLE(objc-gc,
537 [ --enable-objc-gc enable the use of Boehm's garbage collector with
538 the GNU Objective-C runtime],
539 if test x$enable_objc_gc = xno; then
547 [ --with-dwarf2 force the default debug format to be DWARF 2],
548 dwarf2="$with_dwarf2",
551 AC_ARG_ENABLE(shared,
552 [ --disable-shared don't provide a shared libgcc],
554 case $enable_shared in
558 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
559 for pkg in $enableval; do
560 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
567 ], [enable_shared=yes])
568 AC_SUBST(enable_shared)
571 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
573 case ${with_sysroot} in
574 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
575 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
578 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
579 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
581 if test "x$exec_prefix" = xNONE; then
582 if test "x$prefix" = xNONE; then
583 test_prefix=/usr/local
588 test_prefix=$exec_prefix
590 case ${TARGET_SYSTEM_ROOT} in
591 "${test_prefix}"|"${test_prefix}/"*|\
592 '${exec_prefix}'|'${exec_prefix}/'*)
593 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
594 TARGET_SYSTEM_ROOT_DEFINE="$t"
599 TARGET_SYSTEM_ROOT_DEFINE=
600 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
602 AC_SUBST(TARGET_SYSTEM_ROOT)
603 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
604 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
606 # Build with intermodule optimisations
607 AC_ARG_ENABLE(intermodule,
608 [ --enable-intermodule build the compiler in one step],
609 [case ${enable_intermodule} in
610 yes) onestep="-onestep";;
616 # -------------------------
617 # Checks for other programs
618 # -------------------------
622 # Find some useful tools
624 # We need awk to run opts.sh (to create options.c and options.h).
625 # Bail out if it's missing.
627 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
635 # See if cmp has --ignore-initial.
636 gcc_AC_PROG_CMP_IGNORE_INITIAL
638 # See if we have the mktemp command.
639 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
641 # Do we have a single-tree copy of texinfo?
642 if test -f $srcdir/../texinfo/Makefile.in; then
643 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
644 gcc_cv_prog_makeinfo_modern=yes
645 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
647 # See if makeinfo has been installed and is modern enough
648 # that we can use it.
649 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
650 [GNU texinfo.* \([0-9][0-9.]*\)],
654 if test $gcc_cv_prog_makeinfo_modern = no; then
656 *** Makeinfo is missing or too old.
657 *** Info documentation will not be built.])
660 BUILD_INFO=info AC_SUBST(BUILD_INFO)
663 # Is pod2man recent enough to regenerate manpages?
664 AC_MSG_CHECKING([for recent Pod::Man])
665 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
667 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
674 dnl Don't use AC_PROG_LEX; we insist on flex.
675 dnl LEXLIB is not useful in gcc.
676 if test -f $srcdir/../flex/skel.c; then
677 FLEX='$(objdir)/../flex/flex'
679 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
683 # The -L switch is so bison can find its skeleton file.
684 if test -f $srcdir/../bison/bison.simple; then
685 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
687 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
690 # --------------------
691 # Checks for C headers
692 # --------------------
694 AC_MSG_CHECKING(for GNU C library)
695 AC_CACHE_VAL(gcc_cv_glibc,
697 [#include <features.h>],[
698 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
699 #error Not a GNU C library system
703 AC_MSG_RESULT($gcc_cv_glibc)
704 if test $gcc_cv_glibc = yes; then
705 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
708 # Need to reject headers which give warnings, so that the -Werror bootstrap
709 # works later. *sigh* This needs to come before all header checks.
714 gcc_AC_HEADER_STDBOOL
717 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
718 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
719 sys/resource.h sys/param.h sys/times.h sys/stat.h \
720 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
722 # Check for thread headers.
723 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
724 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
726 # These tests can't be done till we know if we have limits.h.
734 # Stage specific cflags for build.
740 stage1_cflags="-Wa,-J"
746 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
747 # sources; use -no-cpp-precomp to get to GNU cpp.
748 # Apple's GCC has bugs in designated initializer handling, so disable
750 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
753 AC_SUBST(stage1_cflags)
755 # These libraries may be used by collect2.
756 # We may need a special search path to get them linked.
757 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
759 for libs in '' -lld -lmld \
760 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
761 '-L/usr/lib/cmplrs/cc3.11 -lmld'
764 AC_TRY_LINK_FUNC(ldopen,
765 [gcc_cv_collect2_libs="$libs"; break])
768 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
769 case $gcc_cv_collect2_libs in
771 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
773 AC_SUBST(COLLECT2_LIBS)
775 # When building Ada code on Alpha, we need exc_resume which is usually in
776 # -lexc. So test for it.
779 AC_SEARCH_LIBS(exc_resume, exc)
782 AC_SUBST(GNAT_LIBEXC)
784 # Some systems put ldexp and frexp in libm instead of libc; assume
785 # they're both in the same place. jcf-dump needs them.
788 AC_SEARCH_LIBS(ldexp, m)
793 # Use <inttypes.h> only if it exists,
794 # doesn't clash with <sys/types.h>, and declares intmax_t.
795 AC_MSG_CHECKING(for inttypes.h)
796 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
798 [#include <sys/types.h>
799 #include <inttypes.h>],
801 [gcc_cv_header_inttypes_h=yes],
802 gcc_cv_header_inttypes_h=no)])
803 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
804 if test $gcc_cv_header_inttypes_h = yes; then
805 AC_DEFINE(HAVE_INTTYPES_H, 1,
806 [Define if you have a working <inttypes.h> header file.])
809 dnl Disabled until we have a complete test for buggy enum bitfields.
810 dnl gcc_AC_C_ENUM_BF_UNSIGNED
812 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
813 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
814 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
815 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
818 if test x$ac_cv_func_mbstowcs = xyes; then
819 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
820 [ AC_TRY_RUN([#include <stdlib.h>
826 gcc_cv_func_mbstowcs_works=yes,
827 gcc_cv_func_mbstowcs_works=no,
828 gcc_cv_func_mbstowcs_works=yes)])
829 if test x$gcc_cv_func_mbstowcs_works = xyes; then
830 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
831 [Define this macro if mbstowcs does not crash when its
832 first argument is NULL.])
836 AC_CHECK_TYPE(ssize_t, int)
838 # Try to determine the array type of the second argument of getgroups
839 # for the target system (int or gid_t).
841 if test "${target}" = "${build}"; then
842 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
845 # This condition may need some tweaking. It should include all
846 # targets where the array type of the second argument of getgroups
847 # is int and the type of gid_t is not equivalent to int.
848 *-*-sunos* | *-*-ultrix*)
849 TARGET_GETGROUPS_T=int
852 TARGET_GETGROUPS_T=gid_t
856 AC_SUBST(TARGET_GETGROUPS_T)
858 gcc_AC_FUNC_PRINTF_PTR
859 gcc_AC_FUNC_MMAP_BLACKLIST
863 # Under VMS, vfork works very differently than on Unix. The standard test
864 # won't work, and it isn't easily adaptable. It makes more sense to
866 ac_cv_func_vfork_works=yes
872 # Until we have in-tree GNU iconv:
874 AC_SUBST(LIBICONV_DEP)
878 # We will need to find libiberty.h and ansidecl.h
879 saved_CFLAGS="$CFLAGS"
880 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
881 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
882 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
883 fprintf_unlocked strstr errno snprintf vasprintf \
884 malloc realloc calloc free basename getopt clock, , ,[
885 #include "ansidecl.h"
886 #include "system.h"])
888 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
889 #include "ansidecl.h"
891 #ifdef HAVE_SYS_RESOURCE_H
892 #include <sys/resource.h>
897 #include "ansidecl.h"
899 #ifdef HAVE_SYS_RESOURCE_H
900 #include <sys/resource.h>
902 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
903 [Define to \`long' if <sys/resource.h> doesn't define.])])
905 gcc_AC_CHECK_DECLS(ldgetname, , ,[
906 #include "ansidecl.h"
913 gcc_AC_CHECK_DECLS(times, , ,[
914 #include "ansidecl.h"
916 #ifdef HAVE_SYS_TIMES_H
917 #include <sys/times.h>
921 # More time-related stuff.
922 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
924 #include "ansidecl.h"
926 #ifdef HAVE_SYS_TIMES_H
927 #include <sys/times.h>
929 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
930 if test $ac_cv_struct_tms = yes; then
931 AC_DEFINE(HAVE_STRUCT_TMS, 1,
932 [Define if <sys/times.h> defines struct tms.])
935 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
936 # revisit after autoconf 2.50.
937 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
939 #include "ansidecl.h"
941 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
942 if test $gcc_cv_type_clock_t = yes; then
943 AC_DEFINE(HAVE_CLOCK_T, 1,
944 [Define if <time.h> defines clock_t.])
947 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
949 #include "ansidecl.h"
952 [if ((uchar *)0) return 0;
953 if (sizeof(uchar)) return 0;],
954 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
955 if test $ac_cv_type_uchar = yes; then
956 AC_DEFINE(HAVE_UCHAR, 1,
957 [Define if <sys/types.h> defines \`uchar'.])
960 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
961 CFLAGS="$saved_CFLAGS"
963 gcc_AC_INITFINI_ARRAY
965 # mkdir takes a single argument on some systems.
966 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
974 # With Setjmp/Longjmp based exception handling.
975 AC_ARG_ENABLE(sjlj-exceptions,
976 [ --enable-sjlj-exceptions
977 arrange to use setjmp/longjmp exception handling],
978 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
979 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
980 [Define 0/1 to force the choice for exception handling model.])])
982 # For platforms with the unwind ABI which includes an unwind library,
983 # libunwind, we can choose to use the system libunwind.
984 AC_ARG_WITH(system-libunwind,
985 [ --with-system-libunwind use installed libunwind])
987 # --------------------------------------------------------
988 # Build, host, and target specific configuration fragments
989 # --------------------------------------------------------
991 # Collect build-machine-specific information.
992 . ${srcdir}/config.build
994 # Collect host-machine-specific information.
995 . ${srcdir}/config.host
999 # Collect target-machine-specific information.
1000 . ${srcdir}/config.gcc
1002 extra_objs="${host_extra_objs} ${extra_objs}"
1003 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1005 # Default the target-machine variables that were not explicitly set.
1006 if test x"$tm_file" = x
1007 then tm_file=$cpu_type/$cpu_type.h; fi
1009 if test x"$extra_headers" = x
1010 then extra_headers=; fi
1012 if test x$md_file = x
1013 then md_file=$cpu_type/$cpu_type.md; fi
1015 if test x$out_file = x
1016 then out_file=$cpu_type/$cpu_type.c; fi
1018 if test x"$tmake_file" = x
1019 then tmake_file=$cpu_type/t-$cpu_type
1022 if test x"$dwarf2" = xyes
1023 then tm_file="$tm_file tm-dwarf2.h"
1026 # Say what files are being used for the output code and MD file.
1027 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1028 echo "Using \`$srcdir/config/$md_file' as machine description file."
1030 # If any of the xm_file variables contain nonexistent files, warn
1031 # about them and drop them.
1034 for x in $build_xm_file; do
1035 if test -f $srcdir/config/$x
1037 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1043 for x in $host_xm_file; do
1044 if test -f $srcdir/config/$x
1046 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1052 for x in $xm_file; do
1053 if test -f $srcdir/config/$x
1055 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1061 for f in $tm_file; do
1064 if test $count = ax; then
1065 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1067 echo "Using the following target machine macro files:"
1068 for f in $tm_file; do
1069 echo " $srcdir/config/$f"
1073 if test x$need_64bit_hwint = xyes; then
1074 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1075 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1079 for f in $host_xm_file; do
1082 if test $count = a; then
1084 elif test $count = ax; then
1085 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1087 echo "Using the following host machine macro files:"
1088 for f in $host_xm_file; do
1089 echo " $srcdir/config/$f"
1092 echo "Using ${out_host_hook_obj} for host machine hooks."
1094 if test "$host_xm_file" != "$build_xm_file"; then
1096 for f in $build_xm_file; do
1099 if test $count = a; then
1101 elif test $count = ax; then
1102 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1104 echo "Using the following build machine macro files:"
1105 for f in $build_xm_file; do
1106 echo " $srcdir/config/$f"
1111 # Check if a valid thread package
1112 case ${enable_threads_flag} in
1115 target_thread_file='single'
1119 target_thread_file='single'
1121 aix | dce | gnat | irix | posix | rtems | \
1122 single | solaris | vxworks | win32 )
1123 target_thread_file=${enable_threads_flag}
1126 echo "${enable_threads_flag} is an unknown thread package" 1>&2
1131 if test x${thread_file} = x; then
1132 # No thread file set by target-specific clauses in config.gcc,
1133 # so use file chosen by default logic above
1134 thread_file=${target_thread_file}
1137 if test x$enable___cxa_atexit = xyes || \
1138 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1139 AC_CHECK_FUNC(__cxa_atexit,
1140 [AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1141 [Define if you want to use __cxa_atexit, rather than atexit, to
1142 register C++ destructors for local statics and global objects.
1143 This is essential for fully standards-compliant handling of
1144 destructors, but requires __cxa_atexit in libc.])],
1145 echo "__cxa_atexit can't be enabled on this target")
1148 # Look for a file containing extra machine modes.
1149 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1150 extra_modes_file='$(srcdir)'/config/${extra_modes}
1151 AC_SUBST(extra_modes_file)
1152 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1153 [Define to the name of a file containing a list of extra machine modes
1154 for this architecture.])
1157 # auto-host.h is the file containing items generated by autoconf and is
1158 # the first file included by config.h.
1159 # If host=build, it is correct to have bconfig include auto-host.h
1160 # as well. If host!=build, we are in error and need to do more
1161 # work to find out the build config parameters.
1162 if test x$host = x$build
1164 build_auto=auto-host.h
1167 # We create a subdir, then run autoconf in the subdir.
1168 # To prevent recursion we set host and build for the new
1169 # invocation of configure to the build for this invocation
1176 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1177 *) realsrcdir=../${srcdir};;
1179 saved_CFLAGS="${CFLAGS}"
1180 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1181 ${realsrcdir}/configure \
1182 --target=$target_alias --host=$build_alias --build=$build_alias
1183 CFLAGS="${saved_CFLAGS}"
1185 # We just finished tests for the build machine, so rename
1186 # the file auto-build.h in the gcc directory.
1187 mv auto-host.h ../auto-build.h
1190 build_auto=auto-build.h
1191 FORBUILD=../${build_subdir}
1195 tm_file="${tm_file} defaults.h"
1196 tm_p_file="${tm_p_file} tm-preds.h"
1197 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1198 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1199 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1200 # put this back in temporarily.
1201 xm_file="ansidecl.h ${xm_file}"
1207 # Get the version trigger filename from the toplevel
1208 if test "${with_gcc_version_trigger+set}" = set; then
1209 gcc_version_trigger=$with_gcc_version_trigger
1211 gcc_version_trigger=${srcdir}/version.c
1214 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1215 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1217 # Compile in configure arguments.
1218 if test -f configargs.h ; then
1219 # Being re-configured.
1220 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1221 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1223 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1226 # Double all backslashes and backslash all quotes to turn
1227 # gcc_config_arguments into a C string.
1228 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1229 $gcc_config_arguments
1231 gcc_config_arguments_str=`cat conftest.out`
1234 cat > configargs.h <<EOF
1235 /* Generated automatically. */
1236 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1237 static const char thread_model[] = "$thread_file";
1239 static const struct {
1240 const char *name, *value;
1241 } configure_default_options[] = $configure_default_options;
1245 # Internationalization
1247 VERSION="$gcc_version"
1251 ZW_GNU_GETTEXT_SISTER_DIR
1253 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1254 # -liconv on the link line twice.
1255 case "$LIBINTL" in *$LIBICONV*)
1259 # Windows32 Registry support for specifying GCC installation paths.
1260 AC_ARG_ENABLE(win32-registry,
1261 [ --disable-win32-registry
1262 disable lookup of installation paths in the
1263 Registry on Windows hosts
1264 --enable-win32-registry enable registry lookup (default)
1265 --enable-win32-registry=KEY
1266 use KEY instead of GCC version as the last portion
1267 of the registry key],,)
1269 win32 | pe | cygwin* | mingw32* | uwin*)
1270 AC_MSG_CHECKING(whether windows registry support is requested)
1271 if test "x$enable_win32_registry" != xno; then
1272 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1273 [Define to 1 if installation paths should be looked up in Windows32
1274 Registry. Ignored on non windows32 hosts.])
1276 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1281 # Check if user specified a different registry key.
1282 case "x${enable_win32_registry}" in
1285 gcc_cv_win32_registry_key="$VERSION"
1288 # no registry lookup.
1289 gcc_cv_win32_registry_key=''
1292 # user-specified key.
1293 gcc_cv_win32_registry_key="$enable_win32_registry"
1297 if test "x$enable_win32_registry" != xno; then
1298 AC_MSG_CHECKING(registry key on windows hosts)
1299 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1300 [Define to be the last portion of registry key on windows hosts.])
1301 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1306 # Get an absolute path to the GCC top-level source directory
1307 holddir=`${PWDCMD-pwd}`
1309 topdir=`${PWDCMD-pwd}`
1312 # Conditionalize the makefile for this host machine.
1314 for f in ${host_xmake_file}
1316 if test -f ${srcdir}/config/$f
1318 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1322 # Conditionalize the makefile for this target machine.
1324 for f in ${tmake_file}
1326 if test -f ${srcdir}/config/$f
1328 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1331 tmake_file="${tmake_file_}"
1333 symbolic_link='ln -s'
1335 # If the host doesn't support symlinks, modify CC in
1336 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1337 # Otherwise, we can use "CC=$(CC)".
1339 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1341 cc_set_by_configure="\$(CC)"
1342 quoted_cc_set_by_configure="\$(CC)"
1343 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1344 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1347 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1349 symbolic_link="cp -p"
1353 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1354 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1355 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1356 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1360 out_object_file=`basename $out_file .c`.o
1364 for f in $tm_file; do
1367 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1368 tm_include_list="${tm_include_list} $f"
1371 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1372 tm_include_list="${tm_include_list} config/$f"
1379 for f in $tm_p_file; do
1382 tm_p_file_list="${tm_p_file_list} $f"
1383 tm_p_include_list="${tm_p_include_list} $f"
1386 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1387 tm_p_include_list="${tm_p_include_list} config/$f"
1393 for f in $xm_file; do
1396 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1397 xm_include_list="${xm_include_list} $f"
1400 xm_file_list="${xm_file_list} $f"
1401 xm_include_list="${xm_include_list} $f"
1404 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1405 xm_include_list="${xm_include_list} config/$f"
1411 host_xm_include_list=
1412 for f in $host_xm_file; do
1415 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1416 host_xm_include_list="${host_xm_include_list} $f"
1419 host_xm_file_list="${host_xm_file_list} $f"
1420 host_xm_include_list="${host_xm_include_list} $f"
1423 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1424 host_xm_include_list="${host_xm_include_list} config/$f"
1430 for f in $build_xm_file; do
1433 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1434 build_xm_include_list="${build_xm_include_list} $f"
1436 auto-build.h | auto-host.h )
1437 build_xm_file_list="${build_xm_file_list} $f"
1438 build_xm_include_list="${build_xm_include_list} $f"
1441 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1442 build_xm_include_list="${build_xm_include_list} config/$f"
1447 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1448 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1449 CROSS= AC_SUBST(CROSS)
1450 ALL=all.internal AC_SUBST(ALL)
1451 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1452 if test x$host != x$target
1454 CROSS="-DCROSS_COMPILE"
1456 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1457 case "$host","$target" in
1458 # Darwin crosses can use the host system's libraries and headers,
1459 # because of the fat library support. Of course, it must be the
1460 # same version of Darwin on both sides. Allow the user to
1461 # just say --target=foo-darwin without a version number to mean
1462 # "the version on this system".
1463 *-*-darwin*,*-*-darwin*)
1464 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1465 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1466 if test $hostos = $targetos -o $targetos = darwin ; then
1468 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1473 i?86-*-*,x86_64-*-* \
1474 | powerpc*-*-*,powerpc64*-*-*)
1475 CROSS="$CROSS -DNATIVE_CROSS" ;;
1477 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1478 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1479 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1482 # If this is a cross-compiler that does not
1483 # have its own set of headers then define
1486 # If this is using newlib, without having the headers available now,
1487 # then define inhibit_libc in LIBGCC2_CFLAGS.
1488 # This prevents libgcc2 from containing any code which requires libc
1491 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1492 test x$with_newlib = xyes ; } &&
1493 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1494 inhibit_libc=-Dinhibit_libc
1496 AC_SUBST(inhibit_libc)
1498 # When building gcc with a cross-compiler, we need to adjust things so
1499 # that the generator programs are still built with the native compiler.
1500 # Also, we cannot run fixincludes or fix-header.
1502 # These are the normal (build=host) settings:
1503 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1504 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1505 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1506 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1508 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1510 # Possibly disable fixproto, on a per-target basis.
1511 case ${use_fixproto} in
1516 STMP_FIXPROTO=stmp-fixproto
1519 AC_SUBST(STMP_FIXPROTO)
1521 # And these apply if build != host, or we are generating coverage data
1522 if test x$build != x$host || test "x$coverage_flags" != x
1525 BUILD_PREFIX_1=build-
1526 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1528 if test "x$TARGET_SYSTEM_ROOT" = x; then
1534 # Expand extra_headers to include complete path.
1535 # This substitutes for lots of t-* files.
1537 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1538 for file in ${extra_headers} ; do
1539 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1542 # Add a definition of USE_COLLECT2 if system wants one.
1543 case $use_collect2 in
1544 no) use_collect2= ;;
1547 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1548 xm_defines="${xm_defines} USE_COLLECT2"
1552 # Identify the assembler which will work hand-in-glove with the newly
1553 # built GCC, so that we can examine its features. This is the assembler
1554 # which will be driven by the driver program.
1556 # If build != host, and we aren't building gas in-tree, we identify a
1557 # build->target assembler and hope that it will have the same features
1558 # as the host->target assembler we'll be using.
1559 AC_MSG_CHECKING(what assembler to use)
1562 gcc_cv_gas_major_version=
1563 gcc_cv_gas_minor_version=
1564 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1565 if test -x "$DEFAULT_ASSEMBLER"; then
1566 gcc_cv_as="$DEFAULT_ASSEMBLER"
1567 elif test -x "$AS"; then
1569 elif test -x as$host_exeext; then
1570 # Build using assembler in the current directory.
1571 gcc_cv_as=./as$host_exeext
1572 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1573 && test -f ../gas/Makefile; then
1574 # Single tree build which includes gas.
1576 _gcc_COMPUTE_GAS_VERSION
1577 rm -f as$host_exeext
1578 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1579 in_tree_gas_is_elf=no
1580 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1581 || (grep 'obj_format = multi' ../gas/Makefile \
1582 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1584 in_tree_gas_is_elf=yes
1588 if test "x$gcc_cv_as" = x; then
1589 # Search the same directories that the installed compiler will
1590 # search. Else we may find the wrong assembler and lose. If we
1591 # do not find a suitable assembler binary, then try the user's
1594 # Also note we have to check MD_EXEC_PREFIX before checking the
1595 # user's path. Unfortunately, there is no good way to get at the
1596 # value of MD_EXEC_PREFIX here. So we do a brute force search
1597 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1598 # to be fixed as part of the make/configure rewrite too.
1600 if test "x$exec_prefix" = xNONE; then
1601 if test "x$prefix" = xNONE; then
1602 test_prefix=/usr/local
1607 test_prefix=$exec_prefix
1610 # If the loop below does not find an assembler, then use whatever
1611 # one we can find in the users's path.
1613 if test "x$program_prefix" != xNONE; then
1614 gcc_cv_as=${program_prefix}as$host_exeext
1616 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1619 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1620 $test_prefix/libexec/gcc/$target_noncanonical \
1621 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1622 /usr/lib/gcc/$target_noncanonical \
1623 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1624 $test_prefix/$target_noncanonical/bin"
1626 if test x$host = x$target; then
1627 test_dirs="$test_dirs \
1632 /bsd43/usr/lib/cmplrs/cc \
1633 /usr/cross64/usr/bin \
1634 /usr/lib/cmplrs/cc \
1635 /sysv/usr/lib/cmplrs/cc \
1636 /svr4/usr/lib/cmplrs/cc \
1640 for dir in $test_dirs; do
1641 if test -x $dir/as$host_exeext; then
1642 gcc_cv_as=$dir/as$host_exeext
1647 case $in_tree_gas in
1649 AC_MSG_RESULT("newly built gas")
1652 AC_MSG_RESULT($gcc_cv_as)
1656 # Identify the linker which will work hand-in-glove with the newly
1657 # built GCC, so that we can examine its features. This is the linker
1658 # which will be driven by the driver program.
1660 # If build != host, and we aren't building gas in-tree, we identify a
1661 # build->target linker and hope that it will have the same features
1662 # as the host->target linker we'll be using.
1663 AC_MSG_CHECKING(what linker to use)
1666 gcc_cv_gld_major_version=
1667 gcc_cv_gld_minor_version=
1668 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1669 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1670 if test -x "$DEFAULT_LINKER"; then
1671 gcc_cv_ld="$DEFAULT_LINKER"
1672 elif test -x "$LD"; then
1674 elif test -x collect-ld$host_exeext; then
1675 # Build using linker in the current directory.
1676 gcc_cv_ld=./collect-ld$host_exeext
1677 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1678 && test -f ../ld/Makefile; then
1679 # Single tree build which includes ld.
1681 in_tree_ld_is_elf=no
1682 if (grep 'EMUL = .*elf' ../ld/Makefile \
1683 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1684 in_tree_ld_is_elf=yes
1686 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
1689 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1691 if test x$gcc_cv_gld_version != x; then
1696 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1697 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1699 rm -f collect-ld$host_exeext
1700 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1704 if test "x$gcc_cv_ld" = x; then
1705 # Search the same directories that the installed compiler will
1706 # search. Else we may find the wrong linker and lose. If we
1707 # do not find a suitable linker binary, then try the user's
1710 # Also note we have to check MD_EXEC_PREFIX before checking the
1711 # user's path. Unfortunately, there is no good way to get at the
1712 # value of MD_EXEC_PREFIX here. So we do a brute force search
1713 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1714 # to be fixed as part of the make/configure rewrite too.
1716 if test "x$exec_prefix" = xNONE; then
1717 if test "x$prefix" = xNONE; then
1718 test_prefix=/usr/local
1723 test_prefix=$exec_prefix
1726 # If the loop below does not find an linker, then use whatever
1727 # one we can find in the users's path.
1729 if test "x$program_prefix" != xNONE; then
1730 gcc_cv_ld=${program_prefix}ld$host_exeext
1732 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1735 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1736 $test_prefix/libexec/gcc/$target_noncanonical \
1737 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1738 /usr/lib/gcc/$target_noncanonical \
1739 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1740 $test_prefix/$target_noncanonical/bin"
1742 if test x$host = x$target; then
1743 test_dirs="$test_dirs \
1748 /bsd43/usr/lib/cmplrs/cc \
1749 /usr/cross64/usr/bin \
1750 /usr/lib/cmplrs/cc \
1751 /sysv/usr/lib/cmplrs/cc \
1752 /svr4/usr/lib/cmplrs/cc \
1756 for dir in $test_dirs; do
1757 if test -x $dir/ld$host_exeext; then
1758 gcc_cv_ld=$dir/ld$host_exeext
1765 AC_MSG_RESULT("newly built ld")
1768 AC_MSG_RESULT($gcc_cv_ld)
1772 # Figure out what nm we will be using.
1773 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1774 AC_MSG_CHECKING(what nm to use)
1776 if test -x nm$host_exeext; then
1777 gcc_cv_nm=./nm$host_exeext
1778 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1779 && test -f ../binutils/Makefile; then
1780 # Single tree build which includes binutils.
1782 gcc_cv_nm=./nm$host_exeext
1783 rm -f nm$host_exeext
1784 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1785 elif test "x$program_prefix" != xNONE; then
1786 gcc_cv_nm=${program_prefix}nm$host_exeext
1788 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1791 yes) AC_MSG_RESULT("newly built nm") ;;
1792 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1795 # Figure out what objdump we will be using.
1796 AC_MSG_CHECKING(what objdump to use)
1798 if test -x objdump$host_exeext; then
1799 gcc_cv_objdump=./objdump$host_exeext
1800 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1801 && test -f ../binutils/Makefile; then
1802 # Single tree build which includes binutils.
1804 gcc_cv_objdump=./objdump$host_exeext
1805 rm -f objdump$host_exeext
1806 $symbolic_link ../binutils/objdump$host_exeext \
1807 objdump$host_exeext 2>/dev/null
1808 elif test "x$program_prefix" != xNONE; then
1809 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1811 gcc_cv_objdump=`echo objdump | \
1812 sed ${program_transform_name}`$host_exeext
1814 case $in_tree_objdump in
1815 yes) AC_MSG_RESULT("newly built objdump") ;;
1816 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1819 # Figure out what assembler alignment features are present.
1820 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1824 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1825 [Define if your assembler supports .balign and .p2align.])])
1827 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1830 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1831 [Define if your assembler supports specifying the maximum number
1832 of bytes to skip when using the GAS .p2align command.])])
1834 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1836 [conftest_label1: .word 0
1838 conftest_label2: .word 0
1840 [if test x$gcc_cv_nm != x; then
1841 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1842 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1843 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1845 else gcc_cv_as_subsection_m1=yes
1847 rm -f conftest.nm1 conftest.nm2
1849 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1850 [Define if your assembler supports .subsection and .subsection -1 starts
1851 emitting at the beginning of your section.])])
1853 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1856 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1858 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
1861 .NSUBSPA $CODE$,COMDAT],,
1862 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
1864 # .hidden needs to be supported in both the assembler and the linker,
1865 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1866 # This is irritatingly difficult to feature test for; we have to check the
1867 # date string after the version number. If we've got an in-tree
1868 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1870 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1871 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1876 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1877 [if test $in_tree_ld = yes ; then
1879 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1880 && test $in_tree_ld_is_elf = yes; then
1881 gcc_cv_ld_hidden=yes
1884 gcc_cv_ld_hidden=yes
1885 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1886 if echo "$ld_ver" | grep GNU > /dev/null; then
1888 ld_vers=`echo $ld_ver | sed -n \
1889 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1890 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1891 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1892 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1893 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1894 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1895 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1896 if test 0"$ld_date" -lt 20020404; then
1897 if test -n "$ld_date"; then
1898 # If there was date string, but was earlier than 2002-04-04, fail
1900 elif test -z "$ld_vers"; then
1901 # If there was no date string nor ld version number, something is wrong
1904 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1905 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1906 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1907 test -z "$ld_vers_patch" && ld_vers_patch=0
1908 if test "$ld_vers_major" -lt 2; then
1910 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1911 gcc_cv_ld_hidden="no"
1912 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1920 hppa64*-*-hpux* | ia64*-*-hpux*)
1921 gcc_cv_ld_hidden=yes
1929 libgcc_visibility=no
1930 AC_SUBST(libgcc_visibility)
1931 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1932 libgcc_visibility=yes
1933 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1934 [Define if your assembler and linker support .hidden.])
1937 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1938 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1946 [# GAS versions before 2.11 do not support uleb128,
1947 # despite appearing to.
1948 # ??? There exists an elf-specific test that will crash
1949 # the assembler. Perhaps it's better to figure out whether
1950 # arbitrary sections are supported and try the test.
1951 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
1952 if echo "$as_ver" | grep GNU > /dev/null; then
1954 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1955 as_major=`echo $as_ver | sed 's/\..*//'`
1956 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1958 if test $as_major -eq 2 && test $as_minor -lt 11
1960 else gcc_cv_as_leb128=yes
1963 [AC_DEFINE(HAVE_AS_LEB128, 1,
1964 [Define if your assembler supports .sleb128 and .uleb128.])])
1966 # GAS versions up to and including 2.11.0 may mis-optimize
1968 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1976 .section .eh_frame,"aw",@progbits
1978 .4byte .LECIE1-.LSCIE1
1992 .4byte .LEFDE1-.LASFDE1
1994 .4byte .LASFDE1-__FRAME_BEGIN__
2002 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2003 cat > conftest.lit <<EOF
2004 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2005 0010 01000000 12000000 18000000 00000000 ................
2006 0020 08000000 04080000 0044 .........D @&t@
2008 cat > conftest.big <<EOF
2009 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2010 0010 00000001 00000012 00000018 00000000 ................
2011 0020 00000008 04000000 0844 .........D @&t@
2013 # If the assembler didn't choke, and we can objdump,
2014 # and we got the correct data, then succeed.
2015 if test x$gcc_cv_objdump != x \
2016 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2017 | tail -3 > conftest.got \
2018 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2019 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2021 gcc_cv_as_eh_frame=yes
2022 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2023 gcc_cv_as_eh_frame=buggy
2025 # Uh oh, what do we do now?
2026 gcc_cv_as_eh_frame=no
2029 if test $gcc_cv_as_eh_frame = buggy; then
2030 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2031 [Define if your assembler mis-optimizes .eh_frame data.])
2034 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2035 [elf,2,12,0], [--fatal-warnings],
2036 [.section .rodata.str, "aMS", @progbits, 1])
2037 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2038 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2039 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2041 # Thread-local storage - the check is heavily parametrized.
2050 .section ".tdata","awT",@progbits
2053 ldq $27,__tls_get_addr($29) !literal!1
2054 lda $16,foo($29) !tlsgd!1
2055 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2056 ldq $27,__tls_get_addr($29) !literal!2
2057 lda $16,foo($29) !tlsldm!2
2058 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2059 ldq $1,foo($29) !gotdtprel
2060 ldah $2,foo($29) !dtprelhi
2061 lda $3,foo($2) !dtprello
2062 lda $4,foo($29) !dtprel
2063 ldq $1,foo($29) !gottprel
2064 ldah $2,foo($29) !tprelhi
2065 lda $3,foo($2) !tprello
2066 lda $4,foo($29) !tprel'
2069 tls_as_opt=--fatal-warnings
2073 .section ".tdata","awT",@progbits
2077 leal foo@TLSGD(,%ebx,1), %eax
2078 leal foo@TLSLDM(%ebx), %eax
2079 leal foo@DTPOFF(%eax), %edx
2080 movl foo@GOTTPOFF(%ebx), %eax
2081 subl foo@GOTTPOFF(%ebx), %eax
2082 addl foo@GOTNTPOFF(%ebx), %eax
2083 movl foo@INDNTPOFF, %eax
2084 movl $foo@TPOFF, %eax
2085 subl $foo@TPOFF, %eax
2086 leal foo@NTPOFF(%ecx), %eax'
2089 tls_as_opt=--fatal-warnings
2093 .section ".tdata","awT",@progbits
2097 leaq foo@TLSGD(%rip), %rdi
2098 leaq foo@TLSLD(%rip), %rdi
2099 leaq foo@DTPOFF(%rax), %rdx
2100 movq foo@GOTTPOFF(%rip), %rax
2101 movq $foo@TPOFF, %rax'
2104 tls_as_opt=--fatal-warnings
2108 .section ".tdata","awT",@progbits
2111 addl r16 = @ltoff(@dtpmod(foo#)), gp
2112 addl r17 = @ltoff(@dtprel(foo#)), gp
2113 addl r18 = @ltoff(@tprel(foo#)), gp
2114 addl r19 = @dtprel(foo#), gp
2115 adds r21 = @dtprel(foo#), r13
2116 movl r23 = @dtprel(foo#)
2117 addl r20 = @tprel(foo#), gp
2118 adds r22 = @tprel(foo#), r13
2119 movl r24 = @tprel(foo#)'
2122 tls_as_opt=--fatal-warnings
2126 .section ".tdata","awT",@progbits
2134 addi 3,31,ld0@got@tlsgd
2136 addi 3,31,x1@got@tlsld
2139 addis 9,3,x2@dtprel@ha
2140 addi 9,9,x2@dtprel@l
2141 lwz 9,x3@got@tprel(31)
2144 addis 9,2,x2@tprel@ha
2145 addi 9,9,x2@tprel@l'
2148 tls_as_opt="-a32 --fatal-warnings"
2152 .section ".tdata","awT",@progbits
2160 addi 3,2,ld0@got@tlsgd
2166 addi 3,2,x1@got@tlsld
2172 addis 9,3,x2@dtprel@ha
2173 addi 9,9,x2@dtprel@l
2176 ld 9,x3@got@dtprel(2)
2182 tls_as_opt="-a64 --fatal-warnings"
2186 .section ".tdata","awT",@progbits
2195 l %r1,foo@GOTNTPOFF(%r12)
2196 l %r1,0(%r1):tls_load:foo
2197 bas %r14,0(%r1,%r13):tls_gdcall:foo
2198 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2201 tls_as_opt="-m31 --fatal-warnings"
2205 .section ".tdata","awT",@progbits
2213 lg %r1,foo@GOTNTPOFF(%r12)
2214 larl %r1,foo@INDNTPOFF
2215 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2216 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2219 tls_as_opt="-m64 -Aesame --fatal-warnings"
2221 sh-*-* | sh[34]-*-*)
2223 .section ".tdata","awT",@progbits
2233 tls_as_opt=--fatal-warnings
2237 sparc*-sun-solaris2.*)
2244 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2246 .section ".tdata",#alloc,#write,#tls
2249 sethi %tgd_hi22(foo), %o0
2250 add %o0, %tgd_lo10(foo), %o1
2251 add %l7, %o1, %o0, %tgd_add(foo)
2252 call __tls_get_addr, %tgd_call(foo)
2253 sethi %tldm_hi22(foo), %l1
2254 add %l1, %tldm_lo10(foo), %l2
2255 add %l7, %l2, %o0, %tldm_add(foo)
2256 call __tls_get_addr, %tldm_call(foo)
2257 sethi %tldo_hix22(foo), %l3
2258 xor %l3, %tldo_lox10(foo), %l4
2259 add %o0, %l4, %l5, %tldo_add(foo)
2260 sethi %tie_hi22(foo), %o3
2261 add %o3, %tie_lo10(foo), %o3
2262 ld [%l7 + %o3], %o2, %tie_ld(foo)
2263 add %g7, %o2, %o4, %tie_add(foo)
2264 sethi %tle_hix22(foo), %l1
2265 xor %l1, %tle_lox10(foo), %o5
2266 ld [%g7 + %o5], %o1'
2271 .section ".tdata","awT",@progbits
2274 sethi %tgd_hi22(foo), %o0
2275 add %o0, %tgd_lo10(foo), %o1
2276 add %l7, %o1, %o0, %tgd_add(foo)
2277 call __tls_get_addr, %tgd_call(foo)
2278 sethi %tldm_hi22(foo), %l1
2279 add %l1, %tldm_lo10(foo), %l2
2280 add %l7, %l2, %o0, %tldm_add(foo)
2281 call __tls_get_addr, %tldm_call(foo)
2282 sethi %tldo_hix22(foo), %l3
2283 xor %l3, %tldo_lox10(foo), %l4
2284 add %o0, %l4, %l5, %tldo_add(foo)
2285 sethi %tie_hi22(foo), %o3
2286 add %o3, %tie_lo10(foo), %o3
2287 ld [%l7 + %o3], %o2, %tie_ld(foo)
2288 add %g7, %o2, %o4, %tie_add(foo)
2289 sethi %tle_hix22(foo), %l1
2290 xor %l1, %tle_lox10(foo), %o5
2291 ld [%g7 + %o5], %o1'
2294 tls_as_opt="-32 --fatal-warnings"
2299 if test -z "$tls_first_major"; then
2300 : # If we don't have a check, assume no support.
2302 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2303 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2304 [AC_DEFINE(HAVE_AS_TLS, 1,
2305 [Define if your assembler supports thread-local storage.])])
2308 # Target-specific assembler checks.
2311 # All TARGET_ABI_OSF targets.
2312 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2313 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2314 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2317 extbl $3, $2, $3 !lituse_bytoff!1
2318 ldq $2, a($29) !literal!1
2319 ldq $4, b($29) !literal!2
2320 ldq_u $3, 0($2) !lituse_base!1
2321 ldq $27, f($29) !literal!5
2322 jsr $26, ($27), f !lituse_jsr!5
2323 ldah $29, 0($26) !gpdisp!3
2324 lda $0, c($29) !gprel
2325 ldah $1, d($29) !gprelhigh
2326 lda $1, d($1) !gprellow
2327 lda $29, 0($29) !gpdisp!3],,
2328 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2329 [Define if your assembler supports explicit relocations.])])
2330 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2331 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2334 ldq $27, a($29) !literal!1
2335 jsr $26, ($27), a !lituse_jsrdirect!1],,
2336 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2337 [Define if your assembler supports the lituse_jsrdirect relocation.])])
2341 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2342 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2343 [-no-mul-bug-abort], [.text],,
2344 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2345 [Define if your assembler supports the -no-mul-bug-abort option.])])
2349 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2350 [.register %g2, #scratch],,
2351 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2352 [Define if your assembler supports .register.])])
2354 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2356 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2357 [Define if your assembler supports -relax option.])])
2359 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2360 gcc_cv_as_sparc_ua_pcrel,,
2368 .uaword %r_disp32(foo)],
2369 [if test x$gcc_cv_ld != x \
2370 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2371 gcc_cv_as_sparc_ua_pcrel=yes
2374 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2375 [Define if your assembler and linker support unaligned PC relative relocs.])
2377 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2378 gcc_cv_as_sparc_ua_pcrel_hidden,,
2383 .uaword %r_disp32(foo)
2384 .byte 0x32, 0x33, 0x34
2389 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2390 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2391 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2392 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2393 if $gcc_cv_objdump -R conftest 2> /dev/null \
2394 | grep 'DISP32' > /dev/null 2>&1; then
2397 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2401 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2402 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2403 ]) # unaligned pcrel relocs
2405 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2406 gcc_cv_as_sparc_offsetable_lo10,,
2409 or %g1, %lo(ab) + 12, %g1
2410 or %g1, %lo(ab + 12), %g1],
2411 [if test x$gcc_cv_objdump != x \
2412 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2413 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2414 gcc_cv_as_sparc_offsetable_lo10=yes
2416 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2417 [Define if your assembler supports offsetable %lo().])])
2421 i[34567]86-*-* | x86_64-*-*)
2423 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2424 gcc_cv_as_ix86_filds_fists,
2425 [2,9,0],, [filds mem; fists mem],,
2426 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2427 [Define if your assembler uses the new HImode fild and fist notation.])])
2429 gcc_GAS_CHECK_FEATURE([cmov syntax],
2430 gcc_cv_as_ix86_cmov_sun_syntax,,,
2431 [cmovl.l %edx, %eax],,
2432 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2433 [Define if your assembler supports the Sun syntax for cmov.])])
2435 # This one is used unconditionally by i386.[ch]; it is to be defined
2436 # to 1 if the feature is present, 0 otherwise.
2437 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2438 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2444 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2445 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2446 [Define true if the assembler supports '.long foo@GOTOFF'.])
2450 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2451 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2453 addl r15 = @ltoffx(x#), gp
2455 ld8.mov r16 = [[r15]], x#],,
2456 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2457 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2463 *-*-aix*) conftest_s=' .csect .text[[PR]]
2465 *-*-darwin*) conftest_s=' .text
2467 *) conftest_s=' .text
2471 gcc_GAS_CHECK_FEATURE([mfcr field support],
2472 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2474 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2475 [Define if your assembler supports mfcr field.])])
2479 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2480 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2481 [ lw $4,%gp_rel(foo)($4)],,
2482 [if test x$target_cpu_default = x
2483 then target_cpu_default=MASK_EXPLICIT_RELOCS
2484 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2489 # ??? Not all targets support dwarf2 debug_line, even within a version
2490 # of gas. Moreover, we need to emit a valid instruction to trigger any
2491 # info to the output file. So, as supported targets are added to gas 2.11,
2492 # add some instruction here to (also) show we expect this might work.
2493 # ??? Once 2.11 is released, probably need to add first known working
2494 # version to the per-target configury.
2496 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2497 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2498 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2501 ia64*-*-* | s390*-*-*)
2508 if test x"$insn" != x; then
2510 .file 1 \"conftest.s\"
2513 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2514 gcc_cv_as_dwarf2_debug_line,
2515 [elf,2,11,0],, [$conftest_s],
2516 [# ??? This fails with non-gnu grep. Maybe use objdump?
2517 if grep debug_line conftest.o > /dev/null 2>&1; then
2518 gcc_cv_as_dwarf2_debug_line=yes
2521 # The .debug_line file table must be in the exact order that
2522 # we specified the files, since these indices are also used
2523 # by DW_AT_decl_file. Approximate this test by testing if
2524 # the assembler bitches if the same index is assigned twice.
2525 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2526 gcc_cv_as_dwarf2_file_buggy,,,
2530 if test $gcc_cv_as_dwarf2_debug_line = yes \
2531 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2532 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2533 [Define if your assembler supports dwarf2 .file/.loc directives,
2534 and preserves file table indices exactly as given.])
2537 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2538 gcc_cv_as_gdwarf2_flag,
2539 [elf,2,11,0], [--gdwarf2], [$insn],,
2540 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2541 [Define if your assembler supports the --gdwarf2 option.])])
2543 gcc_GAS_CHECK_FEATURE([--gstabs option],
2544 gcc_cv_as_gstabs_flag,
2545 [elf,2,11,0], [--gstabs], [$insn],
2546 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2547 # and warns about it, but still exits successfully. So check for
2549 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2551 else gcc_cv_as_gstabs_flag=yes
2553 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2554 [Define if your assembler supports the --gstabs option.])])
2557 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2558 gcc_cv_ld_ro_rw_mix=unknown
2559 if test $in_tree_ld = yes ; then
2560 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2561 && test $in_tree_ld_is_elf = yes; then
2562 gcc_cv_ld_ro_rw_mix=read-write
2564 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2565 echo '.section myfoosect, "a"' > conftest1.s
2566 echo '.section myfoosect, "aw"' > conftest2.s
2567 echo '.byte 1' >> conftest2.s
2568 echo '.section myfoosect, "a"' > conftest3.s
2569 echo '.byte 0' >> conftest3.s
2570 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2571 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2572 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2573 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2574 conftest2.o conftest3.o > /dev/null 2>&1; then
2575 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2576 | sed -e '/myfoosect/!d' -e N`
2577 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2578 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2579 gcc_cv_ld_ro_rw_mix=read-only
2581 gcc_cv_ld_ro_rw_mix=read-write
2586 rm -f conftest.* conftest[123].*
2589 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2590 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2591 [Define if your linker links a mix of read-only
2592 and read-write sections into a read-write section.])
2594 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2596 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2597 gcc_cv_ld_eh_frame_hdr=no
2598 if test $in_tree_ld = yes ; then
2599 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2600 && test $in_tree_ld_is_elf = yes; then
2601 gcc_cv_ld_eh_frame_hdr=yes
2603 elif test x$gcc_cv_ld != x; then
2604 # Check if linker supports --eh-frame-hdr option
2605 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2606 gcc_cv_ld_eh_frame_hdr=yes
2609 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2610 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2611 [Define if your linker supports --eh-frame-hdr option.])
2613 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2615 AC_MSG_CHECKING(linker position independent executable support)
2617 if test $in_tree_ld = yes ; then
2618 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2619 && test $in_tree_ld_is_elf = yes; then
2622 elif test x$gcc_cv_ld != x; then
2623 # Check if linker supports -pie option
2624 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2628 if test x"$gcc_cv_ld_pie" = xyes; then
2629 AC_DEFINE(HAVE_LD_PIE, 1,
2630 [Define if your linker supports -pie option.])
2632 AC_MSG_RESULT($gcc_cv_ld_pie)
2634 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2635 gcc_cv_ld_static_dynamic=no
2636 if test $in_tree_ld = yes ; then
2637 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2638 gcc_cv_ld_static_dynamic=yes
2640 elif test x$gcc_cv_ld != x; then
2641 # Check if linker supports -Bstatic/-Bdynamic option
2642 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2643 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2644 gcc_cv_ld_static_dynamic=yes
2647 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2648 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2649 [Define if your linker supports -Bstatic/-Bdynamic option.])
2651 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2655 AC_CACHE_CHECK(linker --as-needed support,
2656 gcc_cv_ld_as_needed,
2657 [gcc_cv_ld_as_needed=no
2658 if test $in_tree_ld = yes ; then
2659 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2660 && test $in_tree_ld_is_elf = yes; then
2661 gcc_cv_ld_as_needed=yes
2663 elif test x$gcc_cv_ld != x; then
2664 # Check if linker supports --as-needed and --no-as-needed options
2665 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2666 gcc_cv_ld_as_needed=yes
2670 if test x"$gcc_cv_ld_as_needed" = xyes; then
2671 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2672 [Define if your linker supports --as-needed and --no-as-needed options.])
2677 if test x$with_sysroot = x && test x$host = x$target \
2678 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2679 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2680 [Define to PREFIX/include if cpp should also search that directory.])
2683 # Figure out what language subdirectories are present.
2684 # Look if the user specified --enable-languages="..."; if not, use
2685 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2687 # NB: embedded tabs in this IF block -- do not untabify
2688 if test x"${enable_languages+set}" != xset; then
2689 if test x"${LANGUAGES+set}" = xset; then
2690 enable_languages="${LANGUAGES}"
2691 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2694 enable_languages=all
2697 if test x"${enable_languages}" = x \
2698 || test x"${enable_languages}" = xyes;
2700 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2703 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2705 # First scan to see if an enabled language requires some other language.
2706 # We assume that a given config-lang.in will list all the language
2707 # front ends it requires, even if some are required indirectly.
2708 for lang in ${srcdir}/*/config-lang.in
2711 # The odd quoting in the next line works around
2712 # an apparent bug in bash 1.12 on linux.
2714 ${srcdir}/[*]/config-lang.in)
2717 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2718 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2719 for other in $this_lang_requires
2721 case ,${enable_languages}, in
2727 enable_languages="$enable_languages,$other"
2736 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2739 for lang in ${srcdir}/*/config-lang.in
2742 # The odd quoting in the next line works around
2743 # an apparent bug in bash 1.12 on linux.
2745 ${srcdir}/[*]/config-lang.in) ;;
2747 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2748 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2749 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2750 if test "x$lang_alias" = x
2752 echo "$lang doesn't set \$language." 1>&2
2755 case ${build_by_default},${enable_languages}, in
2756 *,$lang_alias,*) add_this_lang=yes ;;
2757 no,*) add_this_lang=no ;;
2758 *,all,*) add_this_lang=yes ;;
2759 *) add_this_lang=no ;;
2761 found_languages="${found_languages} ${lang_alias}"
2762 if test x"${add_this_lang}" = xyes; then
2764 ${srcdir}/ada/config-lang.in)
2765 if test x$have_gnat = xyes ; then
2766 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2770 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2780 for expected_language in ${expected_languages} ..
2782 if test "${expected_language}" != ..; then
2783 missing_language="${expected_language}"
2784 if test "${expected_language}" = "c" \
2785 || test "${expected_language}" = "all"; then
2788 for found_language in ${found_languages} ..
2790 if test "${found_language}" != ..; then
2791 if test "${expected_language}" = "${found_language}"; then
2796 if test "x${missing_language}" != x; then
2797 missing_languages="${missing_languages} ${missing_language}"
2802 if test "x$missing_languages" != x; then
2804 The following requested languages were not found:${missing_languages}
2805 The following languages were available: c${found_languages}])
2808 # Make gthr-default.h if we have a thread file.
2810 if test $thread_file != single; then
2811 rm -f gthr-default.h
2812 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2813 gthread_flags=-DHAVE_GTHR_DEFAULT
2815 AC_SUBST(gthread_flags)
2817 # Find out what GC implementation we want, or may, use.
2819 [ --with-gc={simple,page,zone} choose the garbage collection mechanism to use
2822 simple | page | zone)
2826 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2831 echo "Using $GGC for garbage collection."
2833 # Use the system's zlib library.
2835 zlibinc="-I\$(srcdir)/../zlib"
2836 AC_ARG_WITH(system-zlib,
2837 [ --with-system-zlib use installed libz],
2844 dnl Very limited version of automake's enable-maintainer-mode
2846 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2847 dnl maintainer-mode is disabled by default
2848 AC_ARG_ENABLE(maintainer-mode,
2849 [ --enable-maintainer-mode
2850 enable make rules and dependencies not useful
2851 (and sometimes confusing) to the casual installer],
2852 maintainer_mode=$enableval,
2855 AC_MSG_RESULT($maintainer_mode)
2857 if test "$maintainer_mode" = "yes"; then
2864 # Make empty files to contain the specs and options for each language.
2865 # Then add #include lines to for a compiler that has specs and/or options.
2870 for subdir in . $subdirs
2872 if test -f $srcdir/$subdir/lang.opt; then
2873 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2875 if test -f $srcdir/$subdir/lang-specs.h; then
2876 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2878 if test -f $srcdir/$subdir/$subdir-tree.def; then
2879 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2883 # These (without "all_") are set in each config-lang.in.
2884 # `language' must be a single word so is spelled singularly.
2889 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2890 # List of language makefile fragments.
2892 # List of language subdirectory makefiles. Deprecated.
2894 # Files for gengtype
2895 all_gtfiles="$target_gtfiles"
2896 # Files for gengtype with language
2897 all_gtfiles_files_langs=
2898 all_gtfiles_files_files=
2900 # Add the language fragments.
2901 # Languages are added via two mechanisms. Some information must be
2902 # recorded in makefile variables, these are defined in config-lang.in.
2903 # We accumulate them and plug them into the main Makefile.
2904 # The other mechanism is a set of hooks for each of the main targets
2905 # like `clean', `install', etc.
2907 language_hooks="Make-hooks"
2917 . ${srcdir}/$s/config-lang.in
2918 if test "x$language" = x
2920 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2923 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2924 if test -f ${srcdir}/$s/Makefile.in
2925 then all_lang_makefiles="$s/Makefile"
2927 all_languages="$all_languages $language"
2928 if test "x$boot_language" = xyes
2930 all_boot_languages="$all_boot_languages $language"
2932 all_compilers="$all_compilers $compilers"
2933 all_stagestuff="$all_stagestuff $stagestuff"
2934 all_outputs="$all_outputs $outputs"
2935 all_gtfiles="$all_gtfiles $gtfiles"
2938 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2939 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2943 # Pick up gtfiles for c
2946 . ${srcdir}/c-config-lang.in
2947 all_gtfiles="$all_gtfiles $gtfiles"
2950 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2951 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2955 for language in $all_languages
2957 check_languages="$check_languages check-$language"
2960 # We link each language in with a set of hooks, reached indirectly via
2965 target_list="all.build all.cross start.encap rest.encap tags \
2966 install-normal install-common install-man \
2967 uninstall info man srcextra srcman srcinfo \
2968 mostlyclean clean distclean maintainer-clean \
2969 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2970 for t in $target_list
2973 for lang in $all_languages
2977 echo "lang.$t: $x" >> Make-hooks
2982 echo "dir ." > .gdbinit
2983 echo "dir ${srcdir}" >> .gdbinit
2984 if test x$gdb_needs_out_file_path = xyes
2986 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2988 if test "x$subdirs" != x; then
2991 echo "dir ${srcdir}/$s" >> .gdbinit
2994 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2996 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2997 # absolute path for gcc_tooldir based on inserting the number of up-directory
2998 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2999 # $(libsubdir)/@(unlibsubdir) based path.
3000 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3001 # make and thus we'd get different behavior depending on where we built the
3003 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3004 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3006 changequote(<<, >>)dnl
3007 # An explanation of the sed strings:
3008 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3009 # -e 's|/$||' match a trailing forward slash and eliminates it
3010 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3011 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3013 # (*) Note this pattern overwrites the first character of the string
3014 # with a forward slash if one is not already present. This is not a
3015 # problem because the exact names of the sub-directories concerned is
3016 # unimportant, just the number of them matters.
3018 # The practical upshot of these patterns is like this:
3020 # prefix exec_prefix result
3021 # ------ ----------- ------
3023 # /foo/ /foo/bar ../
3024 # /foo /foo/bar/ ../
3025 # /foo/ /foo/bar/ ../
3026 # /foo /foo/bar/ugg ../../
3029 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3030 changequote([, ])dnl
3032 AC_SUBST(gcc_tooldir)
3035 # Find a directory in which to install a shared libgcc.
3037 AC_ARG_ENABLE(version-specific-runtime-libs,
3038 [ --enable-version-specific-runtime-libs
3039 specify that runtime libraries should be
3040 installed in a compiler-specific directory])
3042 AC_ARG_WITH(slibdir,
3043 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3044 slibdir="$with_slibdir",
3045 if test "${enable_version_specific_runtime_libs+set}" = set; then
3046 slibdir='$(libsubdir)'
3047 elif test "$host" != "$target"; then
3048 slibdir='$(build_tooldir)/lib'
3054 objdir=`${PWDCMD-pwd}`
3057 # Substitute configuration variables
3060 AC_SUBST(all_boot_languages)
3061 AC_SUBST(all_compilers)
3062 AC_SUBST(all_gtfiles)
3063 AC_SUBST(all_gtfiles_files_langs)
3064 AC_SUBST(all_gtfiles_files_files)
3065 AC_SUBST(all_lang_makefrags)
3066 AC_SUBST(all_lang_makefiles)
3067 AC_SUBST(all_languages)
3068 AC_SUBST(all_stagestuff)
3069 AC_SUBST(build_exeext)
3070 AC_SUBST(build_install_headers_dir)
3071 AC_SUBST(build_xm_file_list)
3072 AC_SUBST(build_xm_include_list)
3073 AC_SUBST(build_xm_defines)
3074 AC_SUBST(check_languages)
3075 AC_SUBST(cc_set_by_configure)
3076 AC_SUBST(quoted_cc_set_by_configure)
3077 AC_SUBST(cpp_install_dir)
3078 AC_SUBST(xmake_file)
3079 AC_SUBST(tmake_file)
3080 AC_SUBST(extra_gcc_objs)
3081 AC_SUBST(extra_headers_list)
3082 AC_SUBST(extra_objs)
3083 AC_SUBST(extra_parts)
3084 AC_SUBST(extra_passes)
3085 AC_SUBST(extra_programs)
3086 AC_SUBST(float_h_file)
3087 AC_SUBST(gcc_config_arguments)
3088 AC_SUBST(gcc_gxx_include_dir)
3089 AC_SUBST(libstdcxx_incdir)
3090 AC_SUBST(gcc_version)
3091 AC_SUBST(gcc_version_full)
3092 AC_SUBST(gcc_version_trigger)
3093 AC_SUBST(host_exeext)
3094 AC_SUBST(host_xm_file_list)
3095 AC_SUBST(host_xm_include_list)
3096 AC_SUBST(host_xm_defines)
3097 AC_SUBST(out_host_hook_obj)
3099 AC_SUBST(lang_opt_files)
3100 AC_SUBST(lang_specs_files)
3101 AC_SUBST(lang_tree_files)
3102 AC_SUBST(local_prefix)
3104 AC_SUBST(objc_boehm_gc)
3106 AC_SUBST(out_object_file)
3107 AC_SUBST(stage_prefix_set_by_configure)
3108 AC_SUBST(quoted_stage_prefix_set_by_configure)
3109 AC_SUBST(symbolic_link)
3110 AC_SUBST(thread_file)
3111 AC_SUBST(tm_file_list)
3112 AC_SUBST(tm_include_list)
3113 AC_SUBST(tm_defines)
3114 AC_SUBST(tm_p_file_list)
3115 AC_SUBST(tm_p_include_list)
3116 AC_SUBST(xm_file_list)
3117 AC_SUBST(xm_include_list)
3118 AC_SUBST(xm_defines)
3119 AC_SUBST(target_noncanonical)
3120 AC_SUBST(c_target_objs)
3121 AC_SUBST(cxx_target_objs)
3122 AC_SUBST(target_cpu_default)
3124 AC_SUBST_FILE(language_hooks)
3126 sinclude(../config/gcc-lib-path.m4)
3127 TL_AC_GNU_MAKE_GCC_LIB_PATH
3129 # If it doesn't already exist, create document directory
3130 echo "checking for the document directory." 1>&2
3131 if test -d doc ; then
3138 if test x${build} = x${host} ; then
3139 if test x${host} = x${target} ; then
3140 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3142 echo "Links are now set up to build a cross-compiler" 1>&2
3143 echo " from ${host} to ${target}." 1>&2
3146 if test x${host} = x${target} ; then
3147 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3148 echo " for ${target}." 1>&2
3150 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3151 echo " from ${host} to ${target}." 1>&2
3155 # Configure the subdirectories
3156 # AC_CONFIG_SUBDIRS($subdirs)
3158 # Create the Makefile
3159 # and configure language subdirectories
3160 AC_CONFIG_FILES($all_outputs)
3162 AC_CONFIG_COMMANDS([default],
3164 case ${CONFIG_HEADERS} in
3165 *auto-host.h:config.in*)
3168 # Make sure all the subdirs exist.
3171 test -d $d || mkdir $d
3173 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3174 # bootstrapping and the installation procedure can still use
3175 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3176 # FLAGS_TO_PASS has been modified to solve the problem there.
3177 # This is virtually a duplicate of what happens in configure.lang; we do
3178 # an extra check to make sure this only happens if ln -s can be used.
3179 if test "$symbolic_link" = "ln -s"; then
3180 for d in ${subdirs} fixinc ; do
3181 STARTDIR=`${PWDCMD-pwd}`
3183 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3186 $symbolic_link ../$t $t 2>/dev/null
3193 symbolic_link='$symbolic_link'