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 misc,tree,gc,rtlflag],
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 $check) ;;
377 # Enable some checks by default for development versions of GCC
378 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
380 if test x$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, $sjlj,
980 [Define 0/1 to force the choice for exception handling model.])])
982 if test x$host = x$target; then
983 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
985 use_libunwind_default=no
987 # Use libunwind based exception handling.
988 AC_ARG_ENABLE(libunwind-exceptions,
989 [ --enable-libunwind-exceptions force use libunwind for exceptions],
990 use_libunwind_exceptions=$enableval,
991 use_libunwind_exceptions=$use_libunwind_default)
992 if test x"$use_libunwind_exceptions" = xyes; then
993 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
994 [Define if gcc should use -lunwind.])
997 # --------------------------------------------------------
998 # Build, host, and target specific configuration fragments
999 # --------------------------------------------------------
1001 # Collect build-machine-specific information.
1002 . ${srcdir}/config.build
1004 # Collect host-machine-specific information.
1005 . ${srcdir}/config.host
1009 # Collect target-machine-specific information.
1010 . ${srcdir}/config.gcc
1012 extra_objs="${host_extra_objs} ${extra_objs}"
1013 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1015 # Default the target-machine variables that were not explicitly set.
1016 if test x"$tm_file" = x
1017 then tm_file=$cpu_type/$cpu_type.h; fi
1019 if test x"$extra_headers" = x
1020 then extra_headers=; fi
1022 if test x$md_file = x
1023 then md_file=$cpu_type/$cpu_type.md; fi
1025 if test x$out_file = x
1026 then out_file=$cpu_type/$cpu_type.c; fi
1028 if test x"$tmake_file" = x
1029 then tmake_file=$cpu_type/t-$cpu_type
1032 if test x"$dwarf2" = xyes
1033 then tm_file="$tm_file tm-dwarf2.h"
1036 # Say what files are being used for the output code and MD file.
1037 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1038 echo "Using \`$srcdir/config/$md_file' as machine description file."
1040 # If any of the xm_file variables contain nonexistent files, warn
1041 # about them and drop them.
1044 for x in $build_xm_file; do
1045 if test -f $srcdir/config/$x
1047 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1053 for x in $host_xm_file; do
1054 if test -f $srcdir/config/$x
1056 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1062 for x in $xm_file; do
1063 if test -f $srcdir/config/$x
1065 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1071 for f in $tm_file; do
1074 if test $count = ax; then
1075 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1077 echo "Using the following target machine macro files:"
1078 for f in $tm_file; do
1079 echo " $srcdir/config/$f"
1083 if test x$need_64bit_hwint = xyes; then
1084 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1085 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1089 for f in $host_xm_file; do
1092 if test $count = a; then
1094 elif test $count = ax; then
1095 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1097 echo "Using the following host machine macro files:"
1098 for f in $host_xm_file; do
1099 echo " $srcdir/config/$f"
1102 echo "Using ${out_host_hook_obj} for host machine hooks."
1104 if test "$host_xm_file" != "$build_xm_file"; then
1106 for f in $build_xm_file; do
1109 if test $count = a; then
1111 elif test $count = ax; then
1112 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1114 echo "Using the following build machine macro files:"
1115 for f in $build_xm_file; do
1116 echo " $srcdir/config/$f"
1121 # Check if a valid thread package
1122 case ${enable_threads_flag} in
1125 target_thread_file='single'
1129 target_thread_file='single'
1131 aix | dce | gnat | irix | posix | rtems | \
1132 single | solaris | vxworks | win32 )
1133 target_thread_file=${enable_threads_flag}
1136 echo "${enable_threads_flag} is an unknown thread package" 1>&2
1141 if test x${thread_file} = x; then
1142 # No thread file set by target-specific clauses in config.gcc,
1143 # so use file chosen by default logic above
1144 thread_file=${target_thread_file}
1147 if test x$enable___cxa_atexit = xyes || \
1148 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1149 AC_CHECK_FUNC(__cxa_atexit,
1150 [AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1151 [Define if you want to use __cxa_atexit, rather than atexit, to
1152 register C++ destructors for local statics and global objects.
1153 This is essential for fully standards-compliant handling of
1154 destructors, but requires __cxa_atexit in libc.])],
1155 echo "__cxa_atexit can't be enabled on this target")
1158 # Look for a file containing extra machine modes.
1159 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1160 extra_modes_file='$(srcdir)'/config/${extra_modes}
1161 AC_SUBST(extra_modes_file)
1162 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1163 [Define to the name of a file containing a list of extra machine modes
1164 for this architecture.])
1167 # auto-host.h is the file containing items generated by autoconf and is
1168 # the first file included by config.h.
1169 # If host=build, it is correct to have bconfig include auto-host.h
1170 # as well. If host!=build, we are in error and need to do more
1171 # work to find out the build config parameters.
1172 if test x$host = x$build
1174 build_auto=auto-host.h
1177 # We create a subdir, then run autoconf in the subdir.
1178 # To prevent recursion we set host and build for the new
1179 # invocation of configure to the build for this invocation
1186 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1187 *) realsrcdir=../${srcdir};;
1189 saved_CFLAGS="${CFLAGS}"
1190 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1191 ${realsrcdir}/configure \
1192 --enable-languages=${enable_languages} \
1193 --target=$target_alias --host=$build_alias --build=$build_alias
1194 CFLAGS="${saved_CFLAGS}"
1196 # We just finished tests for the build machine, so rename
1197 # the file auto-build.h in the gcc directory.
1198 mv auto-host.h ../auto-build.h
1201 build_auto=auto-build.h
1202 FORBUILD=../${build_subdir}
1206 tm_file="${tm_file} defaults.h"
1207 tm_p_file="${tm_p_file} tm-preds.h"
1208 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1209 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1210 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1211 # put this back in temporarily.
1212 xm_file="ansidecl.h ${xm_file}"
1218 # Get the version trigger filename from the toplevel
1219 if test "${with_gcc_version_trigger+set}" = set; then
1220 gcc_version_trigger=$with_gcc_version_trigger
1222 gcc_version_trigger=${srcdir}/version.c
1225 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1226 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1228 # Compile in configure arguments.
1229 if test -f configargs.h ; then
1230 # Being re-configured.
1231 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1232 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1234 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1237 # Double all backslashes and backslash all quotes to turn
1238 # gcc_config_arguments into a C string.
1239 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1240 $gcc_config_arguments
1242 gcc_config_arguments_str=`cat conftest.out`
1245 cat > configargs.h <<EOF
1246 /* Generated automatically. */
1247 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1248 static const char thread_model[] = "$thread_file";
1250 static const struct {
1251 const char *name, *value;
1252 } configure_default_options[] = $configure_default_options;
1256 # Internationalization
1258 VERSION="$gcc_version"
1262 ZW_GNU_GETTEXT_SISTER_DIR
1264 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1265 # -liconv on the link line twice.
1266 case "$LIBINTL" in *$LIBICONV*)
1270 # Windows32 Registry support for specifying GCC installation paths.
1271 AC_ARG_ENABLE(win32-registry,
1272 [ --disable-win32-registry
1273 disable lookup of installation paths in the
1274 Registry on Windows hosts
1275 --enable-win32-registry enable registry lookup (default)
1276 --enable-win32-registry=KEY
1277 use KEY instead of GCC version as the last portion
1278 of the registry key],,)
1280 win32 | pe | cygwin* | mingw32* | uwin*)
1281 AC_MSG_CHECKING(whether windows registry support is requested)
1282 if test "x$enable_win32_registry" != xno; then
1283 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1284 [Define to 1 if installation paths should be looked up in Windows32
1285 Registry. Ignored on non windows32 hosts.])
1287 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1292 # Check if user specified a different registry key.
1293 case "x${enable_win32_registry}" in
1296 gcc_cv_win32_registry_key="$VERSION"
1299 # no registry lookup.
1300 gcc_cv_win32_registry_key=''
1303 # user-specified key.
1304 gcc_cv_win32_registry_key="$enable_win32_registry"
1308 if test "x$enable_win32_registry" != xno; then
1309 AC_MSG_CHECKING(registry key on windows hosts)
1310 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1311 [Define to be the last portion of registry key on windows hosts.])
1312 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1317 # Get an absolute path to the GCC top-level source directory
1318 holddir=`${PWDCMD-pwd}`
1320 topdir=`${PWDCMD-pwd}`
1323 # Conditionalize the makefile for this host machine.
1325 for f in ${host_xmake_file}
1327 if test -f ${srcdir}/config/$f
1329 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1333 # Conditionalize the makefile for this target machine.
1335 for f in ${tmake_file}
1337 if test -f ${srcdir}/config/$f
1339 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1342 tmake_file="${tmake_file_}"
1344 symbolic_link='ln -s'
1346 # If the host doesn't support symlinks, modify CC in
1347 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1348 # Otherwise, we can use "CC=$(CC)".
1350 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1352 cc_set_by_configure="\$(CC)"
1353 quoted_cc_set_by_configure="\$(CC)"
1354 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1355 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1358 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1360 symbolic_link="cp -p"
1364 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1365 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1366 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1367 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1371 out_object_file=`basename $out_file .c`.o
1375 for f in $tm_file; do
1378 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1379 tm_include_list="${tm_include_list} $f"
1382 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1383 tm_include_list="${tm_include_list} config/$f"
1390 for f in $tm_p_file; do
1393 tm_p_file_list="${tm_p_file_list} $f"
1394 tm_p_include_list="${tm_p_include_list} $f"
1397 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1398 tm_p_include_list="${tm_p_include_list} config/$f"
1404 for f in $xm_file; do
1407 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1408 xm_include_list="${xm_include_list} $f"
1411 xm_file_list="${xm_file_list} $f"
1412 xm_include_list="${xm_include_list} $f"
1415 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1416 xm_include_list="${xm_include_list} config/$f"
1422 host_xm_include_list=
1423 for f in $host_xm_file; do
1426 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1427 host_xm_include_list="${host_xm_include_list} $f"
1430 host_xm_file_list="${host_xm_file_list} $f"
1431 host_xm_include_list="${host_xm_include_list} $f"
1434 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1435 host_xm_include_list="${host_xm_include_list} config/$f"
1441 for f in $build_xm_file; do
1444 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1445 build_xm_include_list="${build_xm_include_list} $f"
1447 auto-build.h | auto-host.h )
1448 build_xm_file_list="${build_xm_file_list} $f"
1449 build_xm_include_list="${build_xm_include_list} $f"
1452 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1453 build_xm_include_list="${build_xm_include_list} config/$f"
1458 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1459 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1460 CROSS= AC_SUBST(CROSS)
1461 ALL=all.internal AC_SUBST(ALL)
1462 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1463 if test x$host != x$target
1465 CROSS="-DCROSS_COMPILE"
1467 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1468 case "$host","$target" in
1469 # Darwin crosses can use the host system's libraries and headers,
1470 # because of the fat library support. Of course, it must be the
1471 # same version of Darwin on both sides. Allow the user to
1472 # just say --target=foo-darwin without a version number to mean
1473 # "the version on this system".
1474 *-*-darwin*,*-*-darwin*)
1475 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1476 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1477 if test $hostos = $targetos -o $targetos = darwin ; then
1479 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1484 i?86-*-*,x86_64-*-* \
1485 | powerpc*-*-*,powerpc64*-*-*)
1486 CROSS="$CROSS -DNATIVE_CROSS" ;;
1488 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1489 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1490 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1493 # If this is a cross-compiler that does not
1494 # have its own set of headers then define
1497 # If this is using newlib, without having the headers available now,
1498 # then define inhibit_libc in LIBGCC2_CFLAGS.
1499 # This prevents libgcc2 from containing any code which requires libc
1502 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1503 test x$with_newlib = xyes ; } &&
1504 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1505 inhibit_libc=-Dinhibit_libc
1507 AC_SUBST(inhibit_libc)
1509 # When building gcc with a cross-compiler, we need to adjust things so
1510 # that the generator programs are still built with the native compiler.
1511 # Also, we cannot run fixincludes or fix-header.
1513 # These are the normal (build=host) settings:
1514 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1515 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1516 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1517 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1519 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1521 # Possibly disable fixproto, on a per-target basis.
1522 case ${use_fixproto} in
1527 STMP_FIXPROTO=stmp-fixproto
1530 AC_SUBST(STMP_FIXPROTO)
1532 # And these apply if build != host, or we are generating coverage data
1533 if test x$build != x$host || test "x$coverage_flags" != x
1536 BUILD_PREFIX_1=build-
1537 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1539 if test "x$TARGET_SYSTEM_ROOT" = x; then
1545 # Expand extra_headers to include complete path.
1546 # This substitutes for lots of t-* files.
1548 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1549 for file in ${extra_headers} ; do
1550 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1553 # Add a definition of USE_COLLECT2 if system wants one.
1554 case $use_collect2 in
1555 no) use_collect2= ;;
1558 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1559 xm_defines="${xm_defines} USE_COLLECT2"
1563 # Identify the assembler which will work hand-in-glove with the newly
1564 # built GCC, so that we can examine its features. This is the assembler
1565 # which will be driven by the driver program.
1567 # If build != host, and we aren't building gas in-tree, we identify a
1568 # build->target assembler and hope that it will have the same features
1569 # as the host->target assembler we'll be using.
1570 AC_MSG_CHECKING(what assembler to use)
1573 gcc_cv_gas_major_version=
1574 gcc_cv_gas_minor_version=
1575 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1576 if test -x "$DEFAULT_ASSEMBLER"; then
1577 gcc_cv_as="$DEFAULT_ASSEMBLER"
1578 elif test -x "$AS"; then
1580 elif test -x as$host_exeext; then
1581 # Build using assembler in the current directory.
1582 gcc_cv_as=./as$host_exeext
1583 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1584 && test -f ../gas/Makefile; then
1585 # Single tree build which includes gas.
1587 _gcc_COMPUTE_GAS_VERSION
1588 rm -f as$host_exeext
1589 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1590 in_tree_gas_is_elf=no
1591 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1592 || (grep 'obj_format = multi' ../gas/Makefile \
1593 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1595 in_tree_gas_is_elf=yes
1599 if test "x$gcc_cv_as" = x; then
1600 # Search the same directories that the installed compiler will
1601 # search. Else we may find the wrong assembler and lose. If we
1602 # do not find a suitable assembler binary, then try the user's
1605 # Also note we have to check MD_EXEC_PREFIX before checking the
1606 # user's path. Unfortunately, there is no good way to get at the
1607 # value of MD_EXEC_PREFIX here. So we do a brute force search
1608 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1609 # to be fixed as part of the make/configure rewrite too.
1611 if test "x$exec_prefix" = xNONE; then
1612 if test "x$prefix" = xNONE; then
1613 test_prefix=/usr/local
1618 test_prefix=$exec_prefix
1621 # If the loop below does not find an assembler, then use whatever
1622 # one we can find in the users's path.
1624 if test "x$program_prefix" != xNONE; then
1625 gcc_cv_as=${program_prefix}as$host_exeext
1627 gcc_cv_as=`echo as | sed "${program_transform_name}"`$host_exeext
1630 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1631 $test_prefix/libexec/gcc/$target_noncanonical \
1632 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1633 /usr/lib/gcc/$target_noncanonical \
1634 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1635 $test_prefix/$target_noncanonical/bin"
1637 if test x$host = x$target; then
1638 test_dirs="$test_dirs \
1643 /bsd43/usr/lib/cmplrs/cc \
1644 /usr/cross64/usr/bin \
1645 /usr/lib/cmplrs/cc \
1646 /sysv/usr/lib/cmplrs/cc \
1647 /svr4/usr/lib/cmplrs/cc \
1651 for dir in $test_dirs; do
1652 if test -x $dir/as$host_exeext; then
1653 gcc_cv_as=$dir/as$host_exeext
1658 case $in_tree_gas in
1660 AC_MSG_RESULT("newly built gas")
1663 AC_MSG_RESULT($gcc_cv_as)
1667 # Identify the linker which will work hand-in-glove with the newly
1668 # built GCC, so that we can examine its features. This is the linker
1669 # which will be driven by the driver program.
1671 # If build != host, and we aren't building gas in-tree, we identify a
1672 # build->target linker and hope that it will have the same features
1673 # as the host->target linker we'll be using.
1674 AC_MSG_CHECKING(what linker to use)
1677 gcc_cv_gld_major_version=
1678 gcc_cv_gld_minor_version=
1679 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1680 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1681 if test -x "$DEFAULT_LINKER"; then
1682 gcc_cv_ld="$DEFAULT_LINKER"
1683 elif test -x "$LD_FOR_TARGET"; then
1684 gcc_cv_ld="$LD_FOR_TARGET"
1685 elif test -x "$LD" && test x$host = x$target; then
1687 elif test -x collect-ld$host_exeext; then
1688 # Build using linker in the current directory.
1689 gcc_cv_ld=./collect-ld$host_exeext
1690 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1691 && test -f ../ld/Makefile; then
1692 # Single tree build which includes ld.
1694 in_tree_ld_is_elf=no
1695 if (grep 'EMUL = .*elf' ../ld/Makefile \
1696 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1697 in_tree_ld_is_elf=yes
1699 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
1702 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1704 if test x$gcc_cv_gld_version != x; then
1709 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1710 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1712 rm -f collect-ld$host_exeext
1713 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1717 if test "x$gcc_cv_ld" = x; then
1718 # Search the same directories that the installed compiler will
1719 # search. Else we may find the wrong linker and lose. If we
1720 # do not find a suitable linker binary, then try the user's
1723 # Also note we have to check MD_EXEC_PREFIX before checking the
1724 # user's path. Unfortunately, there is no good way to get at the
1725 # value of MD_EXEC_PREFIX here. So we do a brute force search
1726 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1727 # to be fixed as part of the make/configure rewrite too.
1729 if test "x$exec_prefix" = xNONE; then
1730 if test "x$prefix" = xNONE; then
1731 test_prefix=/usr/local
1736 test_prefix=$exec_prefix
1739 # If the loop below does not find an linker, then use whatever
1740 # one we can find in the users's path.
1742 if test "x$program_prefix" != xNONE; then
1743 gcc_cv_ld=${program_prefix}ld$host_exeext
1745 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$host_exeext
1748 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1749 $test_prefix/libexec/gcc/$target_noncanonical \
1750 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1751 /usr/lib/gcc/$target_noncanonical \
1752 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1753 $test_prefix/$target_noncanonical/bin"
1755 if test x$host = x$target; then
1756 test_dirs="$test_dirs \
1761 /bsd43/usr/lib/cmplrs/cc \
1762 /usr/cross64/usr/bin \
1763 /usr/lib/cmplrs/cc \
1764 /sysv/usr/lib/cmplrs/cc \
1765 /svr4/usr/lib/cmplrs/cc \
1769 for dir in $test_dirs; do
1770 if test -x $dir/ld$host_exeext; then
1771 gcc_cv_ld=$dir/ld$host_exeext
1778 AC_MSG_RESULT("newly built ld")
1781 AC_MSG_RESULT($gcc_cv_ld)
1785 # Figure out what nm we will be using.
1786 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1787 AC_MSG_CHECKING(what nm to use)
1789 if test -x nm$host_exeext; then
1790 gcc_cv_nm=./nm$host_exeext
1791 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1792 && test -f ../binutils/Makefile; then
1793 # Single tree build which includes binutils.
1795 gcc_cv_nm=./nm$host_exeext
1796 rm -f nm$host_exeext
1797 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1798 elif test "x$program_prefix" != xNONE; then
1799 gcc_cv_nm=${program_prefix}nm$host_exeext
1801 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$host_exeext
1804 yes) AC_MSG_RESULT("newly built nm") ;;
1805 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1808 # Figure out what objdump we will be using.
1809 AC_MSG_CHECKING(what objdump to use)
1811 if test -x objdump$host_exeext; then
1812 gcc_cv_objdump=./objdump$host_exeext
1813 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1814 && test -f ../binutils/Makefile; then
1815 # Single tree build which includes binutils.
1817 gcc_cv_objdump=./objdump$host_exeext
1818 rm -f objdump$host_exeext
1819 $symbolic_link ../binutils/objdump$host_exeext \
1820 objdump$host_exeext 2>/dev/null
1821 elif test "x$program_prefix" != xNONE; then
1822 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1824 gcc_cv_objdump=`echo objdump | \
1825 sed "${program_transform_name}"`$host_exeext
1827 case $in_tree_objdump in
1828 yes) AC_MSG_RESULT("newly built objdump") ;;
1829 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1832 # Figure out what assembler alignment features are present.
1833 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1837 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1838 [Define if your assembler supports .balign and .p2align.])])
1840 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1843 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1844 [Define if your assembler supports specifying the maximum number
1845 of bytes to skip when using the GAS .p2align command.])])
1847 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1849 [conftest_label1: .word 0
1851 conftest_label2: .word 0
1853 [if test x$gcc_cv_nm != x; then
1854 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1855 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1856 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1858 else gcc_cv_as_subsection_m1=yes
1860 rm -f conftest.nm1 conftest.nm2
1862 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1863 [Define if your assembler supports .subsection and .subsection -1 starts
1864 emitting at the beginning of your section.])])
1866 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1869 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1871 # .hidden needs to be supported in both the assembler and the linker,
1872 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1873 # This is irritatingly difficult to feature test for; we have to check the
1874 # date string after the version number. If we've got an in-tree
1875 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1877 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1878 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1883 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1884 [if test $in_tree_ld = yes ; then
1886 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1887 && test $in_tree_ld_is_elf = yes; then
1888 gcc_cv_ld_hidden=yes
1891 gcc_cv_ld_hidden=yes
1892 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1893 if echo "$ld_ver" | grep GNU > /dev/null; then
1895 ld_vers=`echo $ld_ver | sed -n \
1896 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1897 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1898 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1899 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1900 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1901 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1902 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1903 if test 0"$ld_date" -lt 20020404; then
1904 if test -n "$ld_date"; then
1905 # If there was date string, but was earlier than 2002-04-04, fail
1907 elif test -z "$ld_vers"; then
1908 # If there was no date string nor ld version number, something is wrong
1911 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1912 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1913 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1914 test -z "$ld_vers_patch" && ld_vers_patch=0
1915 if test "$ld_vers_major" -lt 2; then
1917 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1918 gcc_cv_ld_hidden="no"
1919 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1927 hppa64*-*-hpux* | ia64*-*-hpux*)
1928 gcc_cv_ld_hidden=yes
1936 libgcc_visibility=no
1937 AC_SUBST(libgcc_visibility)
1938 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1939 libgcc_visibility=yes
1940 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1941 [Define if your assembler and linker support .hidden.])
1944 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1945 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1953 [# GAS versions before 2.11 do not support uleb128,
1954 # despite appearing to.
1955 # ??? There exists an elf-specific test that will crash
1956 # the assembler. Perhaps it's better to figure out whether
1957 # arbitrary sections are supported and try the test.
1958 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
1959 if echo "$as_ver" | grep GNU > /dev/null; then
1961 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1962 as_major=`echo $as_ver | sed 's/\..*//'`
1963 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1965 if test $as_major -eq 2 && test $as_minor -lt 11
1967 else gcc_cv_as_leb128=yes
1970 [AC_DEFINE(HAVE_AS_LEB128, 1,
1971 [Define if your assembler supports .sleb128 and .uleb128.])])
1973 # GAS versions up to and including 2.11.0 may mis-optimize
1975 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1983 .section .eh_frame,"aw",@progbits
1985 .4byte .LECIE1-.LSCIE1
1999 .4byte .LEFDE1-.LASFDE1
2001 .4byte .LASFDE1-__FRAME_BEGIN__
2009 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2010 cat > conftest.lit <<EOF
2011 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2012 0010 01000000 12000000 18000000 00000000 ................
2013 0020 08000000 04080000 0044 .........D @&t@
2015 cat > conftest.big <<EOF
2016 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2017 0010 00000001 00000012 00000018 00000000 ................
2018 0020 00000008 04000000 0844 .........D @&t@
2020 # If the assembler didn't choke, and we can objdump,
2021 # and we got the correct data, then succeed.
2022 if test x$gcc_cv_objdump != x \
2023 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2024 | tail -3 > conftest.got \
2025 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2026 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2028 gcc_cv_as_eh_frame=yes
2029 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2030 gcc_cv_as_eh_frame=buggy
2032 # Uh oh, what do we do now?
2033 gcc_cv_as_eh_frame=no
2036 if test $gcc_cv_as_eh_frame = buggy; then
2037 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2038 [Define if your assembler mis-optimizes .eh_frame data.])
2041 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2042 [elf,2,12,0], [--fatal-warnings],
2043 [.section .rodata.str, "aMS", @progbits, 1])
2044 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2045 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2046 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2048 # Thread-local storage - the check is heavily parametrized.
2057 .section ".tdata","awT",@progbits
2060 ldq $27,__tls_get_addr($29) !literal!1
2061 lda $16,foo($29) !tlsgd!1
2062 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2063 ldq $27,__tls_get_addr($29) !literal!2
2064 lda $16,foo($29) !tlsldm!2
2065 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2066 ldq $1,foo($29) !gotdtprel
2067 ldah $2,foo($29) !dtprelhi
2068 lda $3,foo($2) !dtprello
2069 lda $4,foo($29) !dtprel
2070 ldq $1,foo($29) !gottprel
2071 ldah $2,foo($29) !tprelhi
2072 lda $3,foo($2) !tprello
2073 lda $4,foo($29) !tprel'
2076 tls_as_opt=--fatal-warnings
2080 .section ".tdata","awT",@progbits
2084 leal foo@TLSGD(,%ebx,1), %eax
2085 leal foo@TLSLDM(%ebx), %eax
2086 leal foo@DTPOFF(%eax), %edx
2087 movl foo@GOTTPOFF(%ebx), %eax
2088 subl foo@GOTTPOFF(%ebx), %eax
2089 addl foo@GOTNTPOFF(%ebx), %eax
2090 movl foo@INDNTPOFF, %eax
2091 movl $foo@TPOFF, %eax
2092 subl $foo@TPOFF, %eax
2093 leal foo@NTPOFF(%ecx), %eax'
2096 tls_as_opt=--fatal-warnings
2100 .section ".tdata","awT",@progbits
2104 leaq foo@TLSGD(%rip), %rdi
2105 leaq foo@TLSLD(%rip), %rdi
2106 leaq foo@DTPOFF(%rax), %rdx
2107 movq foo@GOTTPOFF(%rip), %rax
2108 movq $foo@TPOFF, %rax'
2111 tls_as_opt=--fatal-warnings
2115 .section ".tdata","awT",@progbits
2118 addl r16 = @ltoff(@dtpmod(foo#)), gp
2119 addl r17 = @ltoff(@dtprel(foo#)), gp
2120 addl r18 = @ltoff(@tprel(foo#)), gp
2121 addl r19 = @dtprel(foo#), gp
2122 adds r21 = @dtprel(foo#), r13
2123 movl r23 = @dtprel(foo#)
2124 addl r20 = @tprel(foo#), gp
2125 adds r22 = @tprel(foo#), r13
2126 movl r24 = @tprel(foo#)'
2129 tls_as_opt=--fatal-warnings
2133 .section ".tdata","awT",@progbits
2141 addi 3,31,ld0@got@tlsgd
2143 addi 3,31,x1@got@tlsld
2146 addis 9,3,x2@dtprel@ha
2147 addi 9,9,x2@dtprel@l
2148 lwz 9,x3@got@tprel(31)
2151 addis 9,2,x2@tprel@ha
2152 addi 9,9,x2@tprel@l'
2155 tls_as_opt="-a32 --fatal-warnings"
2159 .section ".tdata","awT",@progbits
2167 addi 3,2,ld0@got@tlsgd
2173 addi 3,2,x1@got@tlsld
2179 addis 9,3,x2@dtprel@ha
2180 addi 9,9,x2@dtprel@l
2183 ld 9,x3@got@dtprel(2)
2189 tls_as_opt="-a64 --fatal-warnings"
2193 .section ".tdata","awT",@progbits
2202 l %r1,foo@GOTNTPOFF(%r12)
2203 l %r1,0(%r1):tls_load:foo
2204 bas %r14,0(%r1,%r13):tls_gdcall:foo
2205 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2208 tls_as_opt="-m31 --fatal-warnings"
2212 .section ".tdata","awT",@progbits
2220 lg %r1,foo@GOTNTPOFF(%r12)
2221 larl %r1,foo@INDNTPOFF
2222 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2223 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2226 tls_as_opt="-m64 -Aesame --fatal-warnings"
2228 sh-*-* | sh[34]-*-*)
2230 .section ".tdata","awT",@progbits
2240 tls_as_opt=--fatal-warnings
2244 sparc*-sun-solaris2.*)
2251 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2253 .section ".tdata",#alloc,#write,#tls
2256 sethi %tgd_hi22(foo), %o0
2257 add %o0, %tgd_lo10(foo), %o1
2258 add %l7, %o1, %o0, %tgd_add(foo)
2259 call __tls_get_addr, %tgd_call(foo)
2260 sethi %tldm_hi22(foo), %l1
2261 add %l1, %tldm_lo10(foo), %l2
2262 add %l7, %l2, %o0, %tldm_add(foo)
2263 call __tls_get_addr, %tldm_call(foo)
2264 sethi %tldo_hix22(foo), %l3
2265 xor %l3, %tldo_lox10(foo), %l4
2266 add %o0, %l4, %l5, %tldo_add(foo)
2267 sethi %tie_hi22(foo), %o3
2268 add %o3, %tie_lo10(foo), %o3
2269 ld [%l7 + %o3], %o2, %tie_ld(foo)
2270 add %g7, %o2, %o4, %tie_add(foo)
2271 sethi %tle_hix22(foo), %l1
2272 xor %l1, %tle_lox10(foo), %o5
2273 ld [%g7 + %o5], %o1'
2278 .section ".tdata","awT",@progbits
2281 sethi %tgd_hi22(foo), %o0
2282 add %o0, %tgd_lo10(foo), %o1
2283 add %l7, %o1, %o0, %tgd_add(foo)
2284 call __tls_get_addr, %tgd_call(foo)
2285 sethi %tldm_hi22(foo), %l1
2286 add %l1, %tldm_lo10(foo), %l2
2287 add %l7, %l2, %o0, %tldm_add(foo)
2288 call __tls_get_addr, %tldm_call(foo)
2289 sethi %tldo_hix22(foo), %l3
2290 xor %l3, %tldo_lox10(foo), %l4
2291 add %o0, %l4, %l5, %tldo_add(foo)
2292 sethi %tie_hi22(foo), %o3
2293 add %o3, %tie_lo10(foo), %o3
2294 ld [%l7 + %o3], %o2, %tie_ld(foo)
2295 add %g7, %o2, %o4, %tie_add(foo)
2296 sethi %tle_hix22(foo), %l1
2297 xor %l1, %tle_lox10(foo), %o5
2298 ld [%g7 + %o5], %o1'
2301 tls_as_opt="-32 --fatal-warnings"
2306 if test -z "$tls_first_major"; then
2307 : # If we don't have a check, assume no support.
2309 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2310 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2311 [AC_DEFINE(HAVE_AS_TLS, 1,
2312 [Define if your assembler supports thread-local storage.])])
2315 # Target-specific assembler checks.
2318 # All TARGET_ABI_OSF targets.
2319 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2320 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2321 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2324 extbl $3, $2, $3 !lituse_bytoff!1
2325 ldq $2, a($29) !literal!1
2326 ldq $4, b($29) !literal!2
2327 ldq_u $3, 0($2) !lituse_base!1
2328 ldq $27, f($29) !literal!5
2329 jsr $26, ($27), f !lituse_jsr!5
2330 ldah $29, 0($26) !gpdisp!3
2331 lda $0, c($29) !gprel
2332 ldah $1, d($29) !gprelhigh
2333 lda $1, d($1) !gprellow
2334 lda $29, 0($29) !gpdisp!3],,
2335 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2336 [Define if your assembler supports explicit relocations.])])
2340 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2341 [.register %g2, #scratch],,
2342 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2343 [Define if your assembler supports .register.])])
2345 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2347 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2348 [Define if your assembler supports -relax option.])])
2350 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2351 gcc_cv_as_sparc_ua_pcrel,,
2359 .uaword %r_disp32(foo)],
2360 [if test x$gcc_cv_ld != x \
2361 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2362 gcc_cv_as_sparc_ua_pcrel=yes
2365 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2366 [Define if your assembler and linker support unaligned PC relative relocs.])
2368 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2369 gcc_cv_as_sparc_ua_pcrel_hidden,,
2374 .uaword %r_disp32(foo)
2375 .byte 0x32, 0x33, 0x34
2380 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2381 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2382 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2383 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2384 if $gcc_cv_objdump -R conftest 2> /dev/null \
2385 | grep 'DISP32' > /dev/null 2>&1; then
2388 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2392 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2393 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2394 ]) # unaligned pcrel relocs
2396 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2397 gcc_cv_as_sparc_offsetable_lo10,,
2400 or %g1, %lo(ab) + 12, %g1
2401 or %g1, %lo(ab + 12), %g1],
2402 [if test x$gcc_cv_objdump != x \
2403 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2404 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2405 gcc_cv_as_offsetable_lo10=yes
2407 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2408 [Define if your assembler supports offsetable %lo().])])
2412 i[34567]86-*-* | x86_64-*-*)
2414 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2415 gcc_cv_as_ix86_filds_fists,
2416 [2,9,0],, [filds mem; fists mem],,
2417 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2418 [Define if your assembler uses the new HImode fild and fist notation.])])
2420 gcc_GAS_CHECK_FEATURE([cmov syntax],
2421 gcc_cv_as_ix86_cmov_sun_syntax,,,
2422 [cmovl.l %edx, %eax],,
2423 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2424 [Define if your assembler supports the Sun syntax for cmov.])])
2426 # This one is used unconditionally by i386.[ch]; it is to be defined
2427 # to 1 if the feature is present, 0 otherwise.
2428 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2429 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2435 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2436 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2437 [Define true if the assembler supports '.long foo@GOTOFF'.])
2441 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2442 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2444 addl r15 = @ltoffx(x#), gp
2446 ld8.mov r16 = [[r15]], x#],,
2447 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2448 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2454 *-*-aix*) conftest_s=' .csect .text[[PR]]
2456 *-*-darwin*) conftest_s=' .text
2458 *) conftest_s=' .text
2462 gcc_GAS_CHECK_FEATURE([mfcr field support],
2463 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2465 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2466 [Define if your assembler supports mfcr field.])])
2470 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2471 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2472 [ lw $4,%gp_rel(foo)($4)],,
2473 [if test x$target_cpu_default = x
2474 then target_cpu_default=MASK_EXPLICIT_RELOCS
2475 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2480 # ??? Not all targets support dwarf2 debug_line, even within a version
2481 # of gas. Moreover, we need to emit a valid instruction to trigger any
2482 # info to the output file. So, as supported targets are added to gas 2.11,
2483 # add some instruction here to (also) show we expect this might work.
2484 # ??? Once 2.11 is released, probably need to add first known working
2485 # version to the per-target configury.
2487 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2488 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2489 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2492 ia64*-*-* | s390*-*-*)
2499 if test x"$insn" != x; then
2501 .file 1 \"conftest.s\"
2504 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2505 gcc_cv_as_dwarf2_debug_line,
2506 [elf,2,11,0],, [$conftest_s],
2507 [# ??? This fails with non-gnu grep. Maybe use objdump?
2508 if grep debug_line conftest.o > /dev/null 2>&1; then
2509 gcc_cv_as_dwarf2_debug_line=yes
2512 # The .debug_line file table must be in the exact order that
2513 # we specified the files, since these indices are also used
2514 # by DW_AT_decl_file. Approximate this test by testing if
2515 # the assembler bitches if the same index is assigned twice.
2516 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2517 gcc_cv_as_dwarf2_file_buggy,,,
2521 if test $gcc_cv_as_dwarf2_debug_line = yes \
2522 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2523 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2524 [Define if your assembler supports dwarf2 .file/.loc directives,
2525 and preserves file table indices exactly as given.])
2528 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2529 gcc_cv_as_gdwarf2_flag,
2530 [elf,2,11,0], [--gdwarf2], [$insn],,
2531 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2532 [Define if your assembler supports the --gdwarf2 option.])])
2534 gcc_GAS_CHECK_FEATURE([--gstabs option],
2535 gcc_cv_as_gstabs_flag,
2536 [elf,2,11,0], [--gstabs], [$insn],
2537 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2538 # and warns about it, but still exits successfully. So check for
2540 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2542 else gcc_cv_as_gstabs_flag=yes
2544 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2545 [Define if your assembler supports the --gstabs option.])])
2548 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2549 gcc_cv_ld_ro_rw_mix=unknown
2550 if test $in_tree_ld = yes ; then
2551 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2552 && test $in_tree_ld_is_elf = yes; then
2553 gcc_cv_ld_ro_rw_mix=read-write
2555 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2556 echo '.section myfoosect, "a"' > conftest1.s
2557 echo '.section myfoosect, "aw"' > conftest2.s
2558 echo '.byte 1' >> conftest2.s
2559 echo '.section myfoosect, "a"' > conftest3.s
2560 echo '.byte 0' >> conftest3.s
2561 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2562 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2563 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2564 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2565 conftest2.o conftest3.o > /dev/null 2>&1; then
2566 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2567 | sed -e '/myfoosect/!d' -e N`
2568 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2569 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2570 gcc_cv_ld_ro_rw_mix=read-only
2572 gcc_cv_ld_ro_rw_mix=read-write
2577 rm -f conftest.* conftest[123].*
2580 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2581 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2582 [Define if your linker links a mix of read-only
2583 and read-write sections into a read-write section.])
2585 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2587 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2588 gcc_cv_ld_eh_frame_hdr=no
2589 if test $in_tree_ld = yes ; then
2590 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2591 && test $in_tree_ld_is_elf = yes; then
2592 gcc_cv_ld_eh_frame_hdr=yes
2594 elif test x$gcc_cv_ld != x; then
2595 # Check if linker supports --eh-frame-hdr option
2596 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2597 gcc_cv_ld_eh_frame_hdr=yes
2600 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2601 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2602 [Define if your linker supports --eh-frame-hdr option.])
2604 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2606 AC_MSG_CHECKING(linker position independent executable support)
2608 if test $in_tree_ld = yes ; then
2609 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2610 && test $in_tree_ld_is_elf = yes; then
2613 elif test x$gcc_cv_ld != x; then
2614 # Check if linker supports -pie option
2615 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2619 if test x"$gcc_cv_ld_pie" = xyes; then
2620 AC_DEFINE(HAVE_LD_PIE, 1,
2621 [Define if your linker supports -pie option.])
2623 AC_MSG_RESULT($gcc_cv_ld_pie)
2625 if test x$with_sysroot = x && test x$host = x$target \
2626 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2627 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2628 [Define to PREFIX/include if cpp should also search that directory.])
2631 # Figure out what language subdirectories are present.
2632 # Look if the user specified --enable-languages="..."; if not, use
2633 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2635 # NB: embedded tabs in this IF block -- do not untabify
2636 if test x"${enable_languages+set}" != xset; then
2637 if test x"${LANGUAGES+set}" = xset; then
2638 enable_languages="${LANGUAGES}"
2639 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2642 enable_languages=all
2645 if test x"${enable_languages}" = x \
2646 || test x"${enable_languages}" = xyes;
2648 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2651 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2653 # First scan to see if an enabled language requires some other language.
2654 # We assume that a given config-lang.in will list all the language
2655 # front ends it requires, even if some are required indirectly.
2656 for lang in ${srcdir}/*/config-lang.in
2659 # The odd quoting in the next line works around
2660 # an apparent bug in bash 1.12 on linux.
2662 ${srcdir}/[*]/config-lang.in)
2665 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2666 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2667 for other in $this_lang_requires
2669 case ,${enable_languages}, in
2675 enable_languages="$enable_languages,$other"
2684 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2687 for lang in ${srcdir}/*/config-lang.in
2690 # The odd quoting in the next line works around
2691 # an apparent bug in bash 1.12 on linux.
2693 ${srcdir}/[*]/config-lang.in) ;;
2695 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2696 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2697 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2698 if test "x$lang_alias" = x
2700 echo "$lang doesn't set \$language." 1>&2
2703 case ${build_by_default},${enable_languages}, in
2704 *,$lang_alias,*) add_this_lang=yes ;;
2705 no,*) add_this_lang=no ;;
2706 *,all,*) add_this_lang=yes ;;
2707 *) add_this_lang=no ;;
2709 found_languages="${found_languages} ${lang_alias}"
2710 if test x"${add_this_lang}" = xyes; then
2712 ${srcdir}/ada/config-lang.in)
2713 if test x$have_gnat = xyes ; then
2714 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2718 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2728 for expected_language in ${expected_languages} ..
2730 if test "${expected_language}" != ..; then
2731 missing_language="${expected_language}"
2732 if test "${expected_language}" = "c" \
2733 || test "${expected_language}" = "all"; then
2736 for found_language in ${found_languages} ..
2738 if test "${found_language}" != ..; then
2739 if test "${expected_language}" = "${found_language}"; then
2744 if test "x${missing_language}" != x; then
2745 missing_languages="${missing_languages} ${missing_language}"
2750 if test "x$missing_languages" != x; then
2752 The following requested languages were not found:${missing_languages}
2753 The following languages were available: c${found_languages}])
2756 # Make gthr-default.h if we have a thread file.
2758 if test $thread_file != single; then
2759 rm -f gthr-default.h
2760 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2761 gthread_flags=-DHAVE_GTHR_DEFAULT
2763 AC_SUBST(gthread_flags)
2765 # Find out what GC implementation we want, or may, use.
2767 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2774 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2779 echo "Using $GGC for garbage collection."
2781 # Use the system's zlib library.
2783 zlibinc="-I\$(srcdir)/../zlib"
2784 AC_ARG_WITH(system-zlib,
2785 [ --with-system-zlib use installed libz],
2792 dnl Very limited version of automake's enable-maintainer-mode
2794 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2795 dnl maintainer-mode is disabled by default
2796 AC_ARG_ENABLE(maintainer-mode,
2797 [ --enable-maintainer-mode
2798 enable make rules and dependencies not useful
2799 (and sometimes confusing) to the casual installer],
2800 maintainer_mode=$enableval,
2803 AC_MSG_RESULT($maintainer_mode)
2805 if test "$maintainer_mode" = "yes"; then
2812 # Make empty files to contain the specs and options for each language.
2813 # Then add #include lines to for a compiler that has specs and/or options.
2818 for subdir in . $subdirs
2820 if test -f $srcdir/$subdir/lang.opt; then
2821 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2823 if test -f $srcdir/$subdir/lang-specs.h; then
2824 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2826 if test -f $srcdir/$subdir/$subdir-tree.def; then
2827 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2831 # These (without "all_") are set in each config-lang.in.
2832 # `language' must be a single word so is spelled singularly.
2837 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2838 # List of language makefile fragments.
2840 # List of language subdirectory makefiles. Deprecated.
2842 # Files for gengtype
2843 all_gtfiles="$target_gtfiles"
2844 # Files for gengtype with language
2845 all_gtfiles_files_langs=
2846 all_gtfiles_files_files=
2848 # Add the language fragments.
2849 # Languages are added via two mechanisms. Some information must be
2850 # recorded in makefile variables, these are defined in config-lang.in.
2851 # We accumulate them and plug them into the main Makefile.
2852 # The other mechanism is a set of hooks for each of the main targets
2853 # like `clean', `install', etc.
2855 language_hooks="Make-hooks"
2865 . ${srcdir}/$s/config-lang.in
2866 if test "x$language" = x
2868 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2871 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2872 if test -f ${srcdir}/$s/Makefile.in
2873 then all_lang_makefiles="$s/Makefile"
2875 all_languages="$all_languages $language"
2876 if test "x$boot_language" = xyes
2878 all_boot_languages="$all_boot_languages $language"
2880 all_compilers="$all_compilers $compilers"
2881 all_stagestuff="$all_stagestuff $stagestuff"
2882 all_outputs="$all_outputs $outputs"
2883 all_gtfiles="$all_gtfiles $gtfiles"
2886 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2887 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2891 # Pick up gtfiles for c
2894 . ${srcdir}/c-config-lang.in
2895 all_gtfiles="$all_gtfiles $gtfiles"
2898 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2899 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2903 for language in $all_languages
2905 check_languages="$check_languages check-$language"
2908 # We link each language in with a set of hooks, reached indirectly via
2913 target_list="all.build all.cross start.encap rest.encap tags \
2914 install-normal install-common install-man \
2915 uninstall info man srcextra srcman srcinfo \
2916 mostlyclean clean distclean maintainer-clean \
2917 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2918 for t in $target_list
2921 for lang in $all_languages
2925 echo "lang.$t: $x" >> Make-hooks
2930 echo "dir ." > .gdbinit
2931 echo "dir ${srcdir}" >> .gdbinit
2932 if test x$gdb_needs_out_file_path = xyes
2934 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2936 if test "x$subdirs" != x; then
2939 echo "dir ${srcdir}/$s" >> .gdbinit
2942 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2944 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2945 # absolute path for gcc_tooldir based on inserting the number of up-directory
2946 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2947 # $(libsubdir)/@(unlibsubdir) based path.
2948 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2949 # make and thus we'd get different behavior depending on where we built the
2951 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2952 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
2954 changequote(<<, >>)dnl
2955 # An explanation of the sed strings:
2956 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2957 # -e 's|/$||' match a trailing forward slash and eliminates it
2958 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2959 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2961 # (*) Note this pattern overwrites the first character of the string
2962 # with a forward slash if one is not already present. This is not a
2963 # problem because the exact names of the sub-directories concerned is
2964 # unimportant, just the number of them matters.
2966 # The practical upshot of these patterns is like this:
2968 # prefix exec_prefix result
2969 # ------ ----------- ------
2971 # /foo/ /foo/bar ../
2972 # /foo /foo/bar/ ../
2973 # /foo/ /foo/bar/ ../
2974 # /foo /foo/bar/ugg ../../
2977 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
2978 changequote([, ])dnl
2980 AC_SUBST(gcc_tooldir)
2983 # Find a directory in which to install a shared libgcc.
2985 AC_ARG_ENABLE(version-specific-runtime-libs,
2986 [ --enable-version-specific-runtime-libs
2987 specify that runtime libraries should be
2988 installed in a compiler-specific directory])
2990 AC_ARG_WITH(slibdir,
2991 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2992 slibdir="$with_slibdir",
2993 if test "${enable_version_specific_runtime_libs+set}" = set; then
2994 slibdir='$(libsubdir)'
2995 elif test "$host" != "$target"; then
2996 slibdir='$(build_tooldir)/lib'
3002 objdir=`${PWDCMD-pwd}`
3005 # Substitute configuration variables
3008 AC_SUBST(all_boot_languages)
3009 AC_SUBST(all_compilers)
3010 AC_SUBST(all_gtfiles)
3011 AC_SUBST(all_gtfiles_files_langs)
3012 AC_SUBST(all_gtfiles_files_files)
3013 AC_SUBST(all_lang_makefrags)
3014 AC_SUBST(all_lang_makefiles)
3015 AC_SUBST(all_languages)
3016 AC_SUBST(all_stagestuff)
3017 AC_SUBST(build_exeext)
3018 AC_SUBST(build_install_headers_dir)
3019 AC_SUBST(build_xm_file_list)
3020 AC_SUBST(build_xm_include_list)
3021 AC_SUBST(build_xm_defines)
3022 AC_SUBST(check_languages)
3023 AC_SUBST(cc_set_by_configure)
3024 AC_SUBST(quoted_cc_set_by_configure)
3025 AC_SUBST(cpp_install_dir)
3026 AC_SUBST(xmake_file)
3027 AC_SUBST(tmake_file)
3028 AC_SUBST(extra_gcc_objs)
3029 AC_SUBST(extra_headers_list)
3030 AC_SUBST(extra_objs)
3031 AC_SUBST(extra_parts)
3032 AC_SUBST(extra_passes)
3033 AC_SUBST(extra_programs)
3034 AC_SUBST(float_h_file)
3035 AC_SUBST(gcc_config_arguments)
3036 AC_SUBST(gcc_gxx_include_dir)
3037 AC_SUBST(libstdcxx_incdir)
3038 AC_SUBST(gcc_version)
3039 AC_SUBST(gcc_version_full)
3040 AC_SUBST(gcc_version_trigger)
3041 AC_SUBST(host_exeext)
3042 AC_SUBST(host_xm_file_list)
3043 AC_SUBST(host_xm_include_list)
3044 AC_SUBST(host_xm_defines)
3045 AC_SUBST(out_host_hook_obj)
3047 AC_SUBST(lang_opt_files)
3048 AC_SUBST(lang_specs_files)
3049 AC_SUBST(lang_tree_files)
3050 AC_SUBST(local_prefix)
3052 AC_SUBST(objc_boehm_gc)
3054 AC_SUBST(out_object_file)
3055 AC_SUBST(stage_prefix_set_by_configure)
3056 AC_SUBST(quoted_stage_prefix_set_by_configure)
3057 AC_SUBST(symbolic_link)
3058 AC_SUBST(thread_file)
3059 AC_SUBST(tm_file_list)
3060 AC_SUBST(tm_include_list)
3061 AC_SUBST(tm_defines)
3062 AC_SUBST(tm_p_file_list)
3063 AC_SUBST(tm_p_include_list)
3064 AC_SUBST(xm_file_list)
3065 AC_SUBST(xm_include_list)
3066 AC_SUBST(xm_defines)
3067 AC_SUBST(target_noncanonical)
3068 AC_SUBST(c_target_objs)
3069 AC_SUBST(cxx_target_objs)
3070 AC_SUBST(target_cpu_default)
3072 AC_SUBST_FILE(language_hooks)
3074 # If it doesn't already exist, create document directory
3075 echo "checking for the document directory." 1>&2
3076 if test -d doc ; then
3083 if test x${build} = x${host} ; then
3084 if test x${host} = x${target} ; then
3085 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3087 echo "Links are now set up to build a cross-compiler" 1>&2
3088 echo " from ${host} to ${target}." 1>&2
3091 if test x${host} = x${target} ; then
3092 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3093 echo " for ${target}." 1>&2
3095 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3096 echo " from ${host} to ${target}." 1>&2
3100 # Configure the subdirectories
3101 # AC_CONFIG_SUBDIRS($subdirs)
3103 # Create the Makefile
3104 # and configure language subdirectories
3105 AC_CONFIG_FILES($all_outputs)
3107 AC_CONFIG_COMMANDS([default],
3109 case ${CONFIG_HEADERS} in
3110 *auto-host.h:config.in*)
3113 # Make sure all the subdirs exist.
3116 test -d $d || mkdir $d
3118 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3119 # bootstrapping and the installation procedure can still use
3120 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3121 # FLAGS_TO_PASS has been modified to solve the problem there.
3122 # This is virtually a duplicate of what happens in configure.lang; we do
3123 # an extra check to make sure this only happens if ln -s can be used.
3124 if test "$symbolic_link" = "ln -s"; then
3125 for d in ${subdirs} fixinc ; do
3126 STARTDIR=`${PWDCMD-pwd}`
3128 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3131 $symbolic_link ../$t $t 2>/dev/null
3138 symbolic_link='$symbolic_link'