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"
1125 # Check if a valid thread package
1126 case ${enable_threads_flag} in
1129 target_thread_file='single'
1133 target_thread_file='single'
1135 aix | dce | gnat | irix | posix | rtems | \
1136 single | solaris | vxworks | win32 )
1137 target_thread_file=${enable_threads_flag}
1140 echo "${enable_threads_flag} is an unknown thread package" 1>&2
1145 if test x${thread_file} = x; then
1146 # No thread file set by target-specific clauses in config.gcc,
1147 # so use file chosen by default logic above
1148 thread_file=${target_thread_file}
1151 # Make gthr-default.h if we have a thread file.
1153 if test $thread_file != single; then
1154 rm -f gthr-default.h
1155 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1156 gthread_flags=-DHAVE_GTHR_DEFAULT
1158 AC_SUBST(gthread_flags)
1164 if test x$enable___cxa_atexit = xyes || \
1165 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1166 AC_CHECK_FUNC(__cxa_atexit,
1167 [AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1168 [Define if you want to use __cxa_atexit, rather than atexit, to
1169 register C++ destructors for local statics and global objects.
1170 This is essential for fully standards-compliant handling of
1171 destructors, but requires __cxa_atexit in libc.])],
1172 echo "__cxa_atexit can't be enabled on this target")
1175 # Look for a file containing extra machine modes.
1176 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1177 extra_modes_file='$(srcdir)'/config/${extra_modes}
1178 AC_SUBST(extra_modes_file)
1179 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1180 [Define to the name of a file containing a list of extra machine modes
1181 for this architecture.])
1184 # auto-host.h is the file containing items generated by autoconf and is
1185 # the first file included by config.h.
1186 # If host=build, it is correct to have bconfig include auto-host.h
1187 # as well. If host!=build, we are in error and need to do more
1188 # work to find out the build config parameters.
1189 if test x$host = x$build
1191 build_auto=auto-host.h
1194 # We create a subdir, then run autoconf in the subdir.
1195 # To prevent recursion we set host and build for the new
1196 # invocation of configure to the build for this invocation
1203 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1204 *) realsrcdir=../${srcdir};;
1206 saved_CFLAGS="${CFLAGS}"
1207 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1208 ${realsrcdir}/configure \
1209 --enable-languages=${enable_languages} \
1210 --target=$target_alias --host=$build_alias --build=$build_alias
1211 CFLAGS="${saved_CFLAGS}"
1213 # We just finished tests for the build machine, so rename
1214 # the file auto-build.h in the gcc directory.
1215 mv auto-host.h ../auto-build.h
1218 build_auto=auto-build.h
1219 FORBUILD=../${build_subdir}
1223 tm_file="${tm_file} defaults.h"
1224 tm_p_file="${tm_p_file} tm-preds.h"
1225 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1226 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1227 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1228 # put this back in temporarily.
1229 xm_file="ansidecl.h ${xm_file}"
1235 # Get the version trigger filename from the toplevel
1236 if test "${with_gcc_version_trigger+set}" = set; then
1237 gcc_version_trigger=$with_gcc_version_trigger
1239 gcc_version_trigger=${srcdir}/version.c
1242 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1243 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1245 # Compile in configure arguments.
1246 if test -f configargs.h ; then
1247 # Being re-configured.
1248 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1249 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1251 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1254 # Double all backslashes and backslash all quotes to turn
1255 # gcc_config_arguments into a C string.
1256 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1257 $gcc_config_arguments
1259 gcc_config_arguments_str=`cat conftest.out`
1262 cat > configargs.h <<EOF
1263 /* Generated automatically. */
1264 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1265 static const char thread_model[] = "$thread_file";
1267 static const struct {
1268 const char *name, *value;
1269 } configure_default_options[] = $configure_default_options;
1273 # Internationalization
1275 VERSION="$gcc_version"
1279 ZW_GNU_GETTEXT_SISTER_DIR
1281 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1282 # -liconv on the link line twice.
1283 case "$LIBINTL" in *$LIBICONV*)
1287 # Windows32 Registry support for specifying GCC installation paths.
1288 AC_ARG_ENABLE(win32-registry,
1289 [ --disable-win32-registry
1290 disable lookup of installation paths in the
1291 Registry on Windows hosts
1292 --enable-win32-registry enable registry lookup (default)
1293 --enable-win32-registry=KEY
1294 use KEY instead of GCC version as the last portion
1295 of the registry key],,)
1297 win32 | pe | cygwin* | mingw32* | uwin*)
1298 AC_MSG_CHECKING(whether windows registry support is requested)
1299 if test "x$enable_win32_registry" != xno; then
1300 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1301 [Define to 1 if installation paths should be looked up in Windows32
1302 Registry. Ignored on non windows32 hosts.])
1304 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1309 # Check if user specified a different registry key.
1310 case "x${enable_win32_registry}" in
1313 gcc_cv_win32_registry_key="$VERSION"
1316 # no registry lookup.
1317 gcc_cv_win32_registry_key=''
1320 # user-specified key.
1321 gcc_cv_win32_registry_key="$enable_win32_registry"
1325 if test "x$enable_win32_registry" != xno; then
1326 AC_MSG_CHECKING(registry key on windows hosts)
1327 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1328 [Define to be the last portion of registry key on windows hosts.])
1329 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1334 # Get an absolute path to the GCC top-level source directory
1335 holddir=`${PWDCMD-pwd}`
1337 topdir=`${PWDCMD-pwd}`
1340 # Conditionalize the makefile for this host machine.
1342 for f in ${host_xmake_file}
1344 if test -f ${srcdir}/config/$f
1346 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1350 # Conditionalize the makefile for this target machine.
1352 for f in ${tmake_file}
1354 if test -f ${srcdir}/config/$f
1356 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1359 tmake_file="${tmake_file_}"
1361 symbolic_link='ln -s'
1363 # If the host doesn't support symlinks, modify CC in
1364 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1365 # Otherwise, we can use "CC=$(CC)".
1367 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1369 cc_set_by_configure="\$(CC)"
1370 quoted_cc_set_by_configure="\$(CC)"
1371 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1372 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1375 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1377 symbolic_link="cp -p"
1381 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1382 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1383 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1384 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1388 out_object_file=`basename $out_file .c`.o
1392 for f in $tm_file; do
1395 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1396 tm_include_list="${tm_include_list} $f"
1399 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1400 tm_include_list="${tm_include_list} config/$f"
1407 for f in $tm_p_file; do
1410 tm_p_file_list="${tm_p_file_list} $f"
1411 tm_p_include_list="${tm_p_include_list} $f"
1414 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1415 tm_p_include_list="${tm_p_include_list} config/$f"
1421 for f in $xm_file; do
1424 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1425 xm_include_list="${xm_include_list} $f"
1428 xm_file_list="${xm_file_list} $f"
1429 xm_include_list="${xm_include_list} $f"
1432 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1433 xm_include_list="${xm_include_list} config/$f"
1439 host_xm_include_list=
1440 for f in $host_xm_file; do
1443 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1444 host_xm_include_list="${host_xm_include_list} $f"
1447 host_xm_file_list="${host_xm_file_list} $f"
1448 host_xm_include_list="${host_xm_include_list} $f"
1451 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1452 host_xm_include_list="${host_xm_include_list} config/$f"
1458 for f in $build_xm_file; do
1461 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1462 build_xm_include_list="${build_xm_include_list} $f"
1464 auto-build.h | auto-host.h )
1465 build_xm_file_list="${build_xm_file_list} $f"
1466 build_xm_include_list="${build_xm_include_list} $f"
1469 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1470 build_xm_include_list="${build_xm_include_list} config/$f"
1475 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1476 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1477 CROSS= AC_SUBST(CROSS)
1478 ALL=all.internal AC_SUBST(ALL)
1479 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1480 if test x$host != x$target
1482 CROSS="-DCROSS_COMPILE"
1484 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1485 case "$host","$target" in
1486 # Darwin crosses can use the host system's libraries and headers,
1487 # because of the fat library support. Of course, it must be the
1488 # same version of Darwin on both sides. Allow the user to
1489 # just say --target=foo-darwin without a version number to mean
1490 # "the version on this system".
1491 *-*-darwin*,*-*-darwin*)
1492 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1493 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1494 if test $hostos = $targetos -o $targetos = darwin ; then
1496 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1501 i?86-*-*,x86_64-*-* \
1502 | powerpc*-*-*,powerpc64*-*-*)
1503 CROSS="$CROSS -DNATIVE_CROSS" ;;
1505 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1506 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1507 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1510 # If this is a cross-compiler that does not
1511 # have its own set of headers then define
1514 # If this is using newlib, without having the headers available now,
1515 # then define inhibit_libc in LIBGCC2_CFLAGS.
1516 # This prevents libgcc2 from containing any code which requires libc
1519 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1520 test x$with_newlib = xyes ; } &&
1521 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1522 inhibit_libc=-Dinhibit_libc
1524 AC_SUBST(inhibit_libc)
1526 # When building gcc with a cross-compiler, we need to adjust things so
1527 # that the generator programs are still built with the native compiler.
1528 # Also, we cannot run fixincludes or fix-header.
1530 # These are the normal (build=host) settings:
1531 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1532 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1533 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1534 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1536 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1538 # Possibly disable fixproto, on a per-target basis.
1539 case ${use_fixproto} in
1544 STMP_FIXPROTO=stmp-fixproto
1547 AC_SUBST(STMP_FIXPROTO)
1549 # And these apply if build != host, or we are generating coverage data
1550 if test x$build != x$host || test "x$coverage_flags" != x
1553 BUILD_PREFIX_1=build-
1554 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1556 if test "x$TARGET_SYSTEM_ROOT" = x; then
1562 # Expand extra_headers to include complete path.
1563 # This substitutes for lots of t-* files.
1565 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1566 for file in ${extra_headers} ; do
1567 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1570 # Add a definition of USE_COLLECT2 if system wants one.
1571 case $use_collect2 in
1572 no) use_collect2= ;;
1575 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1576 xm_defines="${xm_defines} USE_COLLECT2"
1580 # ---------------------------
1581 # Assembler & linker features
1582 # ---------------------------
1584 # Identify the assembler which will work hand-in-glove with the newly
1585 # built GCC, so that we can examine its features. This is the assembler
1586 # which will be driven by the driver program.
1588 # If build != host, and we aren't building gas in-tree, we identify a
1589 # build->target assembler and hope that it will have the same features
1590 # as the host->target assembler we'll be using.
1591 AC_MSG_CHECKING(what assembler to use)
1594 gcc_cv_gas_major_version=
1595 gcc_cv_gas_minor_version=
1596 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1597 if test -x "$DEFAULT_ASSEMBLER"; then
1598 gcc_cv_as="$DEFAULT_ASSEMBLER"
1599 elif test -x "$AS"; then
1601 elif test -x as$host_exeext; then
1602 # Build using assembler in the current directory.
1603 gcc_cv_as=./as$host_exeext
1604 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1605 && test -f ../gas/Makefile; then
1606 # Single tree build which includes gas.
1608 _gcc_COMPUTE_GAS_VERSION
1609 rm -f as$host_exeext
1610 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1611 in_tree_gas_is_elf=no
1612 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1613 || (grep 'obj_format = multi' ../gas/Makefile \
1614 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1616 in_tree_gas_is_elf=yes
1620 if test "x$gcc_cv_as" = x; then
1621 # Search the same directories that the installed compiler will
1622 # search. Else we may find the wrong assembler and lose. If we
1623 # do not find a suitable assembler binary, then try the user's
1626 # Also note we have to check MD_EXEC_PREFIX before checking the
1627 # user's path. Unfortunately, there is no good way to get at the
1628 # value of MD_EXEC_PREFIX here. So we do a brute force search
1629 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1630 # to be fixed as part of the make/configure rewrite too.
1632 if test "x$exec_prefix" = xNONE; then
1633 if test "x$prefix" = xNONE; then
1634 test_prefix=/usr/local
1639 test_prefix=$exec_prefix
1642 # If the loop below does not find an assembler, then use whatever
1643 # one we can find in the users's path.
1645 if test "x$program_prefix" != xNONE; then
1646 gcc_cv_as=${program_prefix}as$host_exeext
1648 gcc_cv_as=`echo as | sed "${program_transform_name}"`$host_exeext
1651 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1652 $test_prefix/libexec/gcc/$target_noncanonical \
1653 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1654 /usr/lib/gcc/$target_noncanonical \
1655 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1656 $test_prefix/$target_noncanonical/bin"
1658 if test x$host = x$target; then
1659 test_dirs="$test_dirs \
1664 /bsd43/usr/lib/cmplrs/cc \
1665 /usr/cross64/usr/bin \
1666 /usr/lib/cmplrs/cc \
1667 /sysv/usr/lib/cmplrs/cc \
1668 /svr4/usr/lib/cmplrs/cc \
1672 for dir in $test_dirs; do
1673 if test -x $dir/as$host_exeext; then
1674 gcc_cv_as=$dir/as$host_exeext
1679 case $in_tree_gas in
1681 AC_MSG_RESULT("newly built gas")
1684 AC_MSG_RESULT($gcc_cv_as)
1688 # Identify the linker which will work hand-in-glove with the newly
1689 # built GCC, so that we can examine its features. This is the linker
1690 # which will be driven by the driver program.
1692 # If build != host, and we aren't building gas in-tree, we identify a
1693 # build->target linker and hope that it will have the same features
1694 # as the host->target linker we'll be using.
1695 AC_MSG_CHECKING(what linker to use)
1698 gcc_cv_gld_major_version=
1699 gcc_cv_gld_minor_version=
1700 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1701 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1702 if test -x "$DEFAULT_LINKER"; then
1703 gcc_cv_ld="$DEFAULT_LINKER"
1704 elif test -x "$LD_FOR_TARGET"; then
1705 gcc_cv_ld="$LD_FOR_TARGET"
1706 elif test -x "$LD" && test x$host = x$target; then
1708 elif test -x collect-ld$host_exeext; then
1709 # Build using linker in the current directory.
1710 gcc_cv_ld=./collect-ld$host_exeext
1711 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1712 && test -f ../ld/Makefile; then
1713 # Single tree build which includes ld.
1715 in_tree_ld_is_elf=no
1716 if (grep 'EMUL = .*elf' ../ld/Makefile \
1717 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1718 in_tree_ld_is_elf=yes
1720 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
1723 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1725 if test x$gcc_cv_gld_version != x; then
1730 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1731 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1733 rm -f collect-ld$host_exeext
1734 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1738 if test "x$gcc_cv_ld" = x; then
1739 # Search the same directories that the installed compiler will
1740 # search. Else we may find the wrong linker and lose. If we
1741 # do not find a suitable linker binary, then try the user's
1744 # Also note we have to check MD_EXEC_PREFIX before checking the
1745 # user's path. Unfortunately, there is no good way to get at the
1746 # value of MD_EXEC_PREFIX here. So we do a brute force search
1747 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1748 # to be fixed as part of the make/configure rewrite too.
1750 if test "x$exec_prefix" = xNONE; then
1751 if test "x$prefix" = xNONE; then
1752 test_prefix=/usr/local
1757 test_prefix=$exec_prefix
1760 # If the loop below does not find an linker, then use whatever
1761 # one we can find in the users's path.
1763 if test "x$program_prefix" != xNONE; then
1764 gcc_cv_ld=${program_prefix}ld$host_exeext
1766 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$host_exeext
1769 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1770 $test_prefix/libexec/gcc/$target_noncanonical \
1771 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1772 /usr/lib/gcc/$target_noncanonical \
1773 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1774 $test_prefix/$target_noncanonical/bin"
1776 if test x$host = x$target; then
1777 test_dirs="$test_dirs \
1782 /bsd43/usr/lib/cmplrs/cc \
1783 /usr/cross64/usr/bin \
1784 /usr/lib/cmplrs/cc \
1785 /sysv/usr/lib/cmplrs/cc \
1786 /svr4/usr/lib/cmplrs/cc \
1790 for dir in $test_dirs; do
1791 if test -x $dir/ld$host_exeext; then
1792 gcc_cv_ld=$dir/ld$host_exeext
1799 AC_MSG_RESULT("newly built ld")
1802 AC_MSG_RESULT($gcc_cv_ld)
1806 # Figure out what nm we will be using.
1807 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1808 AC_MSG_CHECKING(what nm to use)
1810 if test -x nm$host_exeext; then
1811 gcc_cv_nm=./nm$host_exeext
1812 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1813 && test -f ../binutils/Makefile; then
1814 # Single tree build which includes binutils.
1816 gcc_cv_nm=./nm$host_exeext
1817 rm -f nm$host_exeext
1818 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1819 elif test "x$program_prefix" != xNONE; then
1820 gcc_cv_nm=${program_prefix}nm$host_exeext
1822 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$host_exeext
1825 yes) AC_MSG_RESULT("newly built nm") ;;
1826 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1829 # Figure out what objdump we will be using.
1830 AC_MSG_CHECKING(what objdump to use)
1832 if test -x objdump$host_exeext; then
1833 gcc_cv_objdump=./objdump$host_exeext
1834 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1835 && test -f ../binutils/Makefile; then
1836 # Single tree build which includes binutils.
1838 gcc_cv_objdump=./objdump$host_exeext
1839 rm -f objdump$host_exeext
1840 $symbolic_link ../binutils/objdump$host_exeext \
1841 objdump$host_exeext 2>/dev/null
1842 elif test "x$program_prefix" != xNONE; then
1843 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1845 gcc_cv_objdump=`echo objdump | \
1846 sed "${program_transform_name}"`$host_exeext
1848 case $in_tree_objdump in
1849 yes) AC_MSG_RESULT("newly built objdump") ;;
1850 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1853 # Figure out what assembler alignment features are present.
1854 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1858 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1859 [Define if your assembler supports .balign and .p2align.])])
1861 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1864 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1865 [Define if your assembler supports specifying the maximum number
1866 of bytes to skip when using the GAS .p2align command.])])
1868 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1870 [conftest_label1: .word 0
1872 conftest_label2: .word 0
1874 [if test x$gcc_cv_nm != x; then
1875 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1876 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1877 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1879 else gcc_cv_as_subsection_m1=yes
1881 rm -f conftest.nm1 conftest.nm2
1883 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1884 [Define if your assembler supports .subsection and .subsection -1 starts
1885 emitting at the beginning of your section.])])
1887 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1890 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1892 # .hidden needs to be supported in both the assembler and the linker,
1893 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1894 # This is irritatingly difficult to feature test for; we have to check the
1895 # date string after the version number. If we've got an in-tree
1896 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1898 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1899 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1904 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1905 [if test $in_tree_ld = yes ; then
1907 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1908 && test $in_tree_ld_is_elf = yes; then
1909 gcc_cv_ld_hidden=yes
1912 gcc_cv_ld_hidden=yes
1913 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1914 if echo "$ld_ver" | grep GNU > /dev/null; then
1916 ld_vers=`echo $ld_ver | sed -n \
1917 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1918 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1919 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1920 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1921 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1922 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1923 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1924 if test 0"$ld_date" -lt 20020404; then
1925 if test -n "$ld_date"; then
1926 # If there was date string, but was earlier than 2002-04-04, fail
1928 elif test -z "$ld_vers"; then
1929 # If there was no date string nor ld version number, something is wrong
1932 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1933 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1934 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1935 test -z "$ld_vers_patch" && ld_vers_patch=0
1936 if test "$ld_vers_major" -lt 2; then
1938 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1939 gcc_cv_ld_hidden="no"
1940 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1948 hppa64*-*-hpux* | ia64*-*-hpux*)
1949 gcc_cv_ld_hidden=yes
1957 libgcc_visibility=no
1958 AC_SUBST(libgcc_visibility)
1959 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1960 libgcc_visibility=yes
1961 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1962 [Define if your assembler and linker support .hidden.])
1965 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1966 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1974 [# GAS versions before 2.11 do not support uleb128,
1975 # despite appearing to.
1976 # ??? There exists an elf-specific test that will crash
1977 # the assembler. Perhaps it's better to figure out whether
1978 # arbitrary sections are supported and try the test.
1979 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
1980 if echo "$as_ver" | grep GNU > /dev/null; then
1982 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1983 as_major=`echo $as_ver | sed 's/\..*//'`
1984 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1986 if test $as_major -eq 2 && test $as_minor -lt 11
1988 else gcc_cv_as_leb128=yes
1991 [AC_DEFINE(HAVE_AS_LEB128, 1,
1992 [Define if your assembler supports .sleb128 and .uleb128.])])
1994 # GAS versions up to and including 2.11.0 may mis-optimize
1996 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2004 .section .eh_frame,"aw",@progbits
2006 .4byte .LECIE1-.LSCIE1
2020 .4byte .LEFDE1-.LASFDE1
2022 .4byte .LASFDE1-__FRAME_BEGIN__
2030 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2031 cat > conftest.lit <<EOF
2032 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2033 0010 01000000 12000000 18000000 00000000 ................
2034 0020 08000000 04080000 0044 .........D @&t@
2036 cat > conftest.big <<EOF
2037 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2038 0010 00000001 00000012 00000018 00000000 ................
2039 0020 00000008 04000000 0844 .........D @&t@
2041 # If the assembler didn't choke, and we can objdump,
2042 # and we got the correct data, then succeed.
2043 if test x$gcc_cv_objdump != x \
2044 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2045 | tail -3 > conftest.got \
2046 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2047 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2049 gcc_cv_as_eh_frame=yes
2050 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2051 gcc_cv_as_eh_frame=buggy
2053 # Uh oh, what do we do now?
2054 gcc_cv_as_eh_frame=no
2057 if test $gcc_cv_as_eh_frame = buggy; then
2058 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2059 [Define if your assembler mis-optimizes .eh_frame data.])
2062 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2063 [elf,2,12,0], [--fatal-warnings],
2064 [.section .rodata.str, "aMS", @progbits, 1])
2065 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2066 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2067 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2069 # Thread-local storage - the check is heavily parametrized.
2078 .section ".tdata","awT",@progbits
2081 ldq $27,__tls_get_addr($29) !literal!1
2082 lda $16,foo($29) !tlsgd!1
2083 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2084 ldq $27,__tls_get_addr($29) !literal!2
2085 lda $16,foo($29) !tlsldm!2
2086 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2087 ldq $1,foo($29) !gotdtprel
2088 ldah $2,foo($29) !dtprelhi
2089 lda $3,foo($2) !dtprello
2090 lda $4,foo($29) !dtprel
2091 ldq $1,foo($29) !gottprel
2092 ldah $2,foo($29) !tprelhi
2093 lda $3,foo($2) !tprello
2094 lda $4,foo($29) !tprel'
2097 tls_as_opt=--fatal-warnings
2101 .section ".tdata","awT",@progbits
2105 leal foo@TLSGD(,%ebx,1), %eax
2106 leal foo@TLSLDM(%ebx), %eax
2107 leal foo@DTPOFF(%eax), %edx
2108 movl foo@GOTTPOFF(%ebx), %eax
2109 subl foo@GOTTPOFF(%ebx), %eax
2110 addl foo@GOTNTPOFF(%ebx), %eax
2111 movl foo@INDNTPOFF, %eax
2112 movl $foo@TPOFF, %eax
2113 subl $foo@TPOFF, %eax
2114 leal foo@NTPOFF(%ecx), %eax'
2117 tls_as_opt=--fatal-warnings
2121 .section ".tdata","awT",@progbits
2125 leaq foo@TLSGD(%rip), %rdi
2126 leaq foo@TLSLD(%rip), %rdi
2127 leaq foo@DTPOFF(%rax), %rdx
2128 movq foo@GOTTPOFF(%rip), %rax
2129 movq $foo@TPOFF, %rax'
2132 tls_as_opt=--fatal-warnings
2136 .section ".tdata","awT",@progbits
2139 addl r16 = @ltoff(@dtpmod(foo#)), gp
2140 addl r17 = @ltoff(@dtprel(foo#)), gp
2141 addl r18 = @ltoff(@tprel(foo#)), gp
2142 addl r19 = @dtprel(foo#), gp
2143 adds r21 = @dtprel(foo#), r13
2144 movl r23 = @dtprel(foo#)
2145 addl r20 = @tprel(foo#), gp
2146 adds r22 = @tprel(foo#), r13
2147 movl r24 = @tprel(foo#)'
2150 tls_as_opt=--fatal-warnings
2154 .section ".tdata","awT",@progbits
2162 addi 3,31,ld0@got@tlsgd
2164 addi 3,31,x1@got@tlsld
2167 addis 9,3,x2@dtprel@ha
2168 addi 9,9,x2@dtprel@l
2169 lwz 9,x3@got@tprel(31)
2172 addis 9,2,x2@tprel@ha
2173 addi 9,9,x2@tprel@l'
2176 tls_as_opt="-a32 --fatal-warnings"
2180 .section ".tdata","awT",@progbits
2188 addi 3,2,ld0@got@tlsgd
2194 addi 3,2,x1@got@tlsld
2200 addis 9,3,x2@dtprel@ha
2201 addi 9,9,x2@dtprel@l
2204 ld 9,x3@got@dtprel(2)
2210 tls_as_opt="-a64 --fatal-warnings"
2214 .section ".tdata","awT",@progbits
2223 l %r1,foo@GOTNTPOFF(%r12)
2224 l %r1,0(%r1):tls_load:foo
2225 bas %r14,0(%r1,%r13):tls_gdcall:foo
2226 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2229 tls_as_opt="-m31 --fatal-warnings"
2233 .section ".tdata","awT",@progbits
2241 lg %r1,foo@GOTNTPOFF(%r12)
2242 larl %r1,foo@INDNTPOFF
2243 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2244 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2247 tls_as_opt="-m64 -Aesame --fatal-warnings"
2249 sh-*-* | sh[34]-*-*)
2251 .section ".tdata","awT",@progbits
2261 tls_as_opt=--fatal-warnings
2265 sparc*-sun-solaris2.*)
2272 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2274 .section ".tdata",#alloc,#write,#tls
2277 sethi %tgd_hi22(foo), %o0
2278 add %o0, %tgd_lo10(foo), %o1
2279 add %l7, %o1, %o0, %tgd_add(foo)
2280 call __tls_get_addr, %tgd_call(foo)
2281 sethi %tldm_hi22(foo), %l1
2282 add %l1, %tldm_lo10(foo), %l2
2283 add %l7, %l2, %o0, %tldm_add(foo)
2284 call __tls_get_addr, %tldm_call(foo)
2285 sethi %tldo_hix22(foo), %l3
2286 xor %l3, %tldo_lox10(foo), %l4
2287 add %o0, %l4, %l5, %tldo_add(foo)
2288 sethi %tie_hi22(foo), %o3
2289 add %o3, %tie_lo10(foo), %o3
2290 ld [%l7 + %o3], %o2, %tie_ld(foo)
2291 add %g7, %o2, %o4, %tie_add(foo)
2292 sethi %tle_hix22(foo), %l1
2293 xor %l1, %tle_lox10(foo), %o5
2294 ld [%g7 + %o5], %o1'
2299 .section ".tdata","awT",@progbits
2302 sethi %tgd_hi22(foo), %o0
2303 add %o0, %tgd_lo10(foo), %o1
2304 add %l7, %o1, %o0, %tgd_add(foo)
2305 call __tls_get_addr, %tgd_call(foo)
2306 sethi %tldm_hi22(foo), %l1
2307 add %l1, %tldm_lo10(foo), %l2
2308 add %l7, %l2, %o0, %tldm_add(foo)
2309 call __tls_get_addr, %tldm_call(foo)
2310 sethi %tldo_hix22(foo), %l3
2311 xor %l3, %tldo_lox10(foo), %l4
2312 add %o0, %l4, %l5, %tldo_add(foo)
2313 sethi %tie_hi22(foo), %o3
2314 add %o3, %tie_lo10(foo), %o3
2315 ld [%l7 + %o3], %o2, %tie_ld(foo)
2316 add %g7, %o2, %o4, %tie_add(foo)
2317 sethi %tle_hix22(foo), %l1
2318 xor %l1, %tle_lox10(foo), %o5
2319 ld [%g7 + %o5], %o1'
2322 tls_as_opt="-32 --fatal-warnings"
2327 if test -z "$tls_first_major"; then
2328 : # If we don't have a check, assume no support.
2330 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2331 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2332 [AC_DEFINE(HAVE_AS_TLS, 1,
2333 [Define if your assembler supports thread-local storage.])])
2336 # Target-specific assembler checks.
2339 # All TARGET_ABI_OSF targets.
2340 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2341 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2342 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2345 extbl $3, $2, $3 !lituse_bytoff!1
2346 ldq $2, a($29) !literal!1
2347 ldq $4, b($29) !literal!2
2348 ldq_u $3, 0($2) !lituse_base!1
2349 ldq $27, f($29) !literal!5
2350 jsr $26, ($27), f !lituse_jsr!5
2351 ldah $29, 0($26) !gpdisp!3
2352 lda $0, c($29) !gprel
2353 ldah $1, d($29) !gprelhigh
2354 lda $1, d($1) !gprellow
2355 lda $29, 0($29) !gpdisp!3],,
2356 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2357 [Define if your assembler supports explicit relocations.])])
2361 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2362 [.register %g2, #scratch],,
2363 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2364 [Define if your assembler supports .register.])])
2366 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2368 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2369 [Define if your assembler supports -relax option.])])
2371 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2372 gcc_cv_as_sparc_ua_pcrel,,
2380 .uaword %r_disp32(foo)],
2381 [if test x$gcc_cv_ld != x \
2382 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2383 gcc_cv_as_sparc_ua_pcrel=yes
2386 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2387 [Define if your assembler and linker support unaligned PC relative relocs.])
2389 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2390 gcc_cv_as_sparc_ua_pcrel_hidden,,
2395 .uaword %r_disp32(foo)
2396 .byte 0x32, 0x33, 0x34
2401 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2402 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2403 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2404 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2405 if $gcc_cv_objdump -R conftest 2> /dev/null \
2406 | grep 'DISP32' > /dev/null 2>&1; then
2409 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2413 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2414 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2415 ]) # unaligned pcrel relocs
2417 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2418 gcc_cv_as_sparc_offsetable_lo10,,
2421 or %g1, %lo(ab) + 12, %g1
2422 or %g1, %lo(ab + 12), %g1],
2423 [if test x$gcc_cv_objdump != x \
2424 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2425 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2426 gcc_cv_as_offsetable_lo10=yes
2428 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2429 [Define if your assembler supports offsetable %lo().])])
2433 i[34567]86-*-* | x86_64-*-*)
2435 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2436 gcc_cv_as_ix86_filds_fists,
2437 [2,9,0],, [filds mem; fists mem],,
2438 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2439 [Define if your assembler uses the new HImode fild and fist notation.])])
2441 gcc_GAS_CHECK_FEATURE([cmov syntax],
2442 gcc_cv_as_ix86_cmov_sun_syntax,,,
2443 [cmovl.l %edx, %eax],,
2444 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2445 [Define if your assembler supports the Sun syntax for cmov.])])
2447 # This one is used unconditionally by i386.[ch]; it is to be defined
2448 # to 1 if the feature is present, 0 otherwise.
2449 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2450 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2456 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2457 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2458 [Define true if the assembler supports '.long foo@GOTOFF'.])
2462 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2463 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2465 addl r15 = @ltoffx(x#), gp
2467 ld8.mov r16 = [[r15]], x#],,
2468 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2469 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2475 *-*-aix*) conftest_s=' .csect .text[[PR]]
2477 *-*-darwin*) conftest_s=' .text
2479 *) conftest_s=' .text
2483 gcc_GAS_CHECK_FEATURE([mfcr field support],
2484 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2486 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2487 [Define if your assembler supports mfcr field.])])
2491 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2492 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2493 [ lw $4,%gp_rel(foo)($4)],,
2494 [if test x$target_cpu_default = x
2495 then target_cpu_default=MASK_EXPLICIT_RELOCS
2496 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2501 # ??? Not all targets support dwarf2 debug_line, even within a version
2502 # of gas. Moreover, we need to emit a valid instruction to trigger any
2503 # info to the output file. So, as supported targets are added to gas 2.11,
2504 # add some instruction here to (also) show we expect this might work.
2505 # ??? Once 2.11 is released, probably need to add first known working
2506 # version to the per-target configury.
2508 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2509 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2510 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2513 ia64*-*-* | s390*-*-*)
2520 if test x"$insn" != x; then
2522 .file 1 \"conftest.s\"
2525 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2526 gcc_cv_as_dwarf2_debug_line,
2527 [elf,2,11,0],, [$conftest_s],
2528 [# ??? This fails with non-gnu grep. Maybe use objdump?
2529 if grep debug_line conftest.o > /dev/null 2>&1; then
2530 gcc_cv_as_dwarf2_debug_line=yes
2533 # The .debug_line file table must be in the exact order that
2534 # we specified the files, since these indices are also used
2535 # by DW_AT_decl_file. Approximate this test by testing if
2536 # the assembler bitches if the same index is assigned twice.
2537 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2538 gcc_cv_as_dwarf2_file_buggy,,,
2542 if test $gcc_cv_as_dwarf2_debug_line = yes \
2543 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2544 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2545 [Define if your assembler supports dwarf2 .file/.loc directives,
2546 and preserves file table indices exactly as given.])
2549 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2550 gcc_cv_as_gdwarf2_flag,
2551 [elf,2,11,0], [--gdwarf2], [$insn],,
2552 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2553 [Define if your assembler supports the --gdwarf2 option.])])
2555 gcc_GAS_CHECK_FEATURE([--gstabs option],
2556 gcc_cv_as_gstabs_flag,
2557 [elf,2,11,0], [--gstabs], [$insn],
2558 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2559 # and warns about it, but still exits successfully. So check for
2561 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2563 else gcc_cv_as_gstabs_flag=yes
2565 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2566 [Define if your assembler supports the --gstabs option.])])
2569 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2570 gcc_cv_ld_ro_rw_mix=unknown
2571 if test $in_tree_ld = yes ; then
2572 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2573 && test $in_tree_ld_is_elf = yes; then
2574 gcc_cv_ld_ro_rw_mix=read-write
2576 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2577 echo '.section myfoosect, "a"' > conftest1.s
2578 echo '.section myfoosect, "aw"' > conftest2.s
2579 echo '.byte 1' >> conftest2.s
2580 echo '.section myfoosect, "a"' > conftest3.s
2581 echo '.byte 0' >> conftest3.s
2582 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2583 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2584 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2585 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2586 conftest2.o conftest3.o > /dev/null 2>&1; then
2587 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2588 | sed -e '/myfoosect/!d' -e N`
2589 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2590 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2591 gcc_cv_ld_ro_rw_mix=read-only
2593 gcc_cv_ld_ro_rw_mix=read-write
2598 rm -f conftest.* conftest[123].*
2601 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2602 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2603 [Define if your linker links a mix of read-only
2604 and read-write sections into a read-write section.])
2606 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2608 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2609 gcc_cv_ld_eh_frame_hdr=no
2610 if test $in_tree_ld = yes ; then
2611 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2612 && test $in_tree_ld_is_elf = yes; then
2613 gcc_cv_ld_eh_frame_hdr=yes
2615 elif test x$gcc_cv_ld != x; then
2616 # Check if linker supports --eh-frame-hdr option
2617 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2618 gcc_cv_ld_eh_frame_hdr=yes
2621 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2622 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2623 [Define if your linker supports --eh-frame-hdr option.])
2625 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2627 AC_MSG_CHECKING(linker position independent executable support)
2629 if test $in_tree_ld = yes ; then
2630 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2631 && test $in_tree_ld_is_elf = yes; then
2634 elif test x$gcc_cv_ld != x; then
2635 # Check if linker supports -pie option
2636 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2640 if test x"$gcc_cv_ld_pie" = xyes; then
2641 AC_DEFINE(HAVE_LD_PIE, 1,
2642 [Define if your linker supports -pie option.])
2644 AC_MSG_RESULT($gcc_cv_ld_pie)
2650 if test x$with_sysroot = x && test x$host = x$target \
2651 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2652 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2653 [Define to PREFIX/include if cpp should also search that directory.])
2656 # Figure out what language subdirectories are present.
2657 # Look if the user specified --enable-languages="..."; if not, use
2658 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2660 # NB: embedded tabs in this IF block -- do not untabify
2661 if test x"${enable_languages+set}" != xset; then
2662 if test x"${LANGUAGES+set}" = xset; then
2663 enable_languages="${LANGUAGES}"
2664 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2667 enable_languages=all
2670 if test x"${enable_languages}" = x \
2671 || test x"${enable_languages}" = xyes;
2673 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2676 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2678 # First scan to see if an enabled language requires some other language.
2679 # We assume that a given config-lang.in will list all the language
2680 # front ends it requires, even if some are required indirectly.
2681 for lang in ${srcdir}/*/config-lang.in
2684 # The odd quoting in the next line works around
2685 # an apparent bug in bash 1.12 on linux.
2687 ${srcdir}/[*]/config-lang.in)
2690 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2691 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2692 for other in $this_lang_requires
2694 case ,${enable_languages}, in
2700 enable_languages="$enable_languages,$other"
2709 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2712 for lang in ${srcdir}/*/config-lang.in
2715 # The odd quoting in the next line works around
2716 # an apparent bug in bash 1.12 on linux.
2718 ${srcdir}/[*]/config-lang.in) ;;
2720 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2721 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2722 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2723 if test "x$lang_alias" = x
2725 echo "$lang doesn't set \$language." 1>&2
2728 case ${build_by_default},${enable_languages}, in
2729 *,$lang_alias,*) add_this_lang=yes ;;
2730 no,*) add_this_lang=no ;;
2731 *,all,*) add_this_lang=yes ;;
2732 *) add_this_lang=no ;;
2734 found_languages="${found_languages} ${lang_alias}"
2735 if test x"${add_this_lang}" = xyes; then
2737 ${srcdir}/ada/config-lang.in)
2738 if test x$have_gnat = xyes ; then
2739 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2743 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2753 for expected_language in ${expected_languages} ..
2755 if test "${expected_language}" != ..; then
2756 missing_language="${expected_language}"
2757 if test "${expected_language}" = "c" \
2758 || test "${expected_language}" = "all"; then
2761 for found_language in ${found_languages} ..
2763 if test "${found_language}" != ..; then
2764 if test "${expected_language}" = "${found_language}"; then
2769 if test "x${missing_language}" != x; then
2770 missing_languages="${missing_languages} ${missing_language}"
2775 if test "x$missing_languages" != x; then
2777 The following requested languages were not found:${missing_languages}
2778 The following languages were available: c${found_languages}])
2781 # Find out what GC implementation we want, or may, use.
2783 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2790 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2795 echo "Using $GGC for garbage collection."
2797 # Use the system's zlib library.
2799 zlibinc="-I\$(srcdir)/../zlib"
2800 AC_ARG_WITH(system-zlib,
2801 [ --with-system-zlib use installed libz],
2808 dnl Very limited version of automake's enable-maintainer-mode
2810 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2811 dnl maintainer-mode is disabled by default
2812 AC_ARG_ENABLE(maintainer-mode,
2813 [ --enable-maintainer-mode
2814 enable make rules and dependencies not useful
2815 (and sometimes confusing) to the casual installer],
2816 maintainer_mode=$enableval,
2819 AC_MSG_RESULT($maintainer_mode)
2821 if test "$maintainer_mode" = "yes"; then
2832 # Make empty files to contain the specs and options for each language.
2833 # Then add #include lines to for a compiler that has specs and/or options.
2838 for subdir in . $subdirs
2840 if test -f $srcdir/$subdir/lang.opt; then
2841 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2843 if test -f $srcdir/$subdir/lang-specs.h; then
2844 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2846 if test -f $srcdir/$subdir/$subdir-tree.def; then
2847 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2851 # These (without "all_") are set in each config-lang.in.
2852 # `language' must be a single word so is spelled singularly.
2857 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2858 # List of language makefile fragments.
2860 # List of language subdirectory makefiles. Deprecated.
2862 # Files for gengtype
2863 all_gtfiles="$target_gtfiles"
2864 # Files for gengtype with language
2865 all_gtfiles_files_langs=
2866 all_gtfiles_files_files=
2868 # Add the language fragments.
2869 # Languages are added via two mechanisms. Some information must be
2870 # recorded in makefile variables, these are defined in config-lang.in.
2871 # We accumulate them and plug them into the main Makefile.
2872 # The other mechanism is a set of hooks for each of the main targets
2873 # like `clean', `install', etc.
2875 language_hooks="Make-hooks"
2885 . ${srcdir}/$s/config-lang.in
2886 if test "x$language" = x
2888 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2891 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2892 if test -f ${srcdir}/$s/Makefile.in
2893 then all_lang_makefiles="$s/Makefile"
2895 all_languages="$all_languages $language"
2896 if test "x$boot_language" = xyes
2898 all_boot_languages="$all_boot_languages $language"
2900 all_compilers="$all_compilers $compilers"
2901 all_stagestuff="$all_stagestuff $stagestuff"
2902 all_outputs="$all_outputs $outputs"
2903 all_gtfiles="$all_gtfiles $gtfiles"
2906 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2907 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2911 # Pick up gtfiles for c
2914 . ${srcdir}/c-config-lang.in
2915 all_gtfiles="$all_gtfiles $gtfiles"
2918 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2919 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2923 for language in $all_languages
2925 check_languages="$check_languages check-$language"
2928 # We link each language in with a set of hooks, reached indirectly via
2933 target_list="all.build all.cross start.encap rest.encap tags \
2934 install-normal install-common install-man \
2935 uninstall info man srcextra srcman srcinfo \
2936 mostlyclean clean distclean maintainer-clean \
2937 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2938 for t in $target_list
2941 for lang in $all_languages
2945 echo "lang.$t: $x" >> Make-hooks
2954 echo "dir ." > .gdbinit
2955 echo "dir ${srcdir}" >> .gdbinit
2956 if test x$gdb_needs_out_file_path = xyes
2958 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2960 if test "x$subdirs" != x; then
2963 echo "dir ${srcdir}/$s" >> .gdbinit
2966 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2968 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2969 # absolute path for gcc_tooldir based on inserting the number of up-directory
2970 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2971 # $(libsubdir)/@(unlibsubdir) based path.
2972 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2973 # make and thus we'd get different behavior depending on where we built the
2975 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2976 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
2978 changequote(<<, >>)dnl
2979 # An explanation of the sed strings:
2980 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2981 # -e 's|/$||' match a trailing forward slash and eliminates it
2982 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2983 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2985 # (*) Note this pattern overwrites the first character of the string
2986 # with a forward slash if one is not already present. This is not a
2987 # problem because the exact names of the sub-directories concerned is
2988 # unimportant, just the number of them matters.
2990 # The practical upshot of these patterns is like this:
2992 # prefix exec_prefix result
2993 # ------ ----------- ------
2995 # /foo/ /foo/bar ../
2996 # /foo /foo/bar/ ../
2997 # /foo/ /foo/bar/ ../
2998 # /foo /foo/bar/ugg ../../
3001 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3002 changequote([, ])dnl
3004 AC_SUBST(gcc_tooldir)
3007 # Find a directory in which to install a shared libgcc.
3009 AC_ARG_ENABLE(version-specific-runtime-libs,
3010 [ --enable-version-specific-runtime-libs
3011 specify that runtime libraries should be
3012 installed in a compiler-specific directory])
3014 AC_ARG_WITH(slibdir,
3015 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3016 slibdir="$with_slibdir",
3017 if test "${enable_version_specific_runtime_libs+set}" = set; then
3018 slibdir='$(libsubdir)'
3019 elif test "$host" != "$target"; then
3020 slibdir='$(build_tooldir)/lib'
3026 objdir=`${PWDCMD-pwd}`
3029 # Substitute configuration variables
3032 AC_SUBST(all_boot_languages)
3033 AC_SUBST(all_compilers)
3034 AC_SUBST(all_gtfiles)
3035 AC_SUBST(all_gtfiles_files_langs)
3036 AC_SUBST(all_gtfiles_files_files)
3037 AC_SUBST(all_lang_makefrags)
3038 AC_SUBST(all_lang_makefiles)
3039 AC_SUBST(all_languages)
3040 AC_SUBST(all_stagestuff)
3041 AC_SUBST(build_exeext)
3042 AC_SUBST(build_install_headers_dir)
3043 AC_SUBST(build_xm_file_list)
3044 AC_SUBST(build_xm_include_list)
3045 AC_SUBST(build_xm_defines)
3046 AC_SUBST(check_languages)
3047 AC_SUBST(cc_set_by_configure)
3048 AC_SUBST(quoted_cc_set_by_configure)
3049 AC_SUBST(cpp_install_dir)
3050 AC_SUBST(xmake_file)
3051 AC_SUBST(tmake_file)
3052 AC_SUBST(extra_gcc_objs)
3053 AC_SUBST(extra_headers_list)
3054 AC_SUBST(extra_objs)
3055 AC_SUBST(extra_parts)
3056 AC_SUBST(extra_passes)
3057 AC_SUBST(extra_programs)
3058 AC_SUBST(float_h_file)
3059 AC_SUBST(gcc_config_arguments)
3060 AC_SUBST(gcc_gxx_include_dir)
3061 AC_SUBST(libstdcxx_incdir)
3062 AC_SUBST(gcc_version)
3063 AC_SUBST(gcc_version_full)
3064 AC_SUBST(gcc_version_trigger)
3065 AC_SUBST(host_exeext)
3066 AC_SUBST(host_xm_file_list)
3067 AC_SUBST(host_xm_include_list)
3068 AC_SUBST(host_xm_defines)
3069 AC_SUBST(out_host_hook_obj)
3071 AC_SUBST(lang_opt_files)
3072 AC_SUBST(lang_specs_files)
3073 AC_SUBST(lang_tree_files)
3074 AC_SUBST(local_prefix)
3076 AC_SUBST(objc_boehm_gc)
3078 AC_SUBST(out_object_file)
3079 AC_SUBST(stage_prefix_set_by_configure)
3080 AC_SUBST(quoted_stage_prefix_set_by_configure)
3081 AC_SUBST(symbolic_link)
3082 AC_SUBST(thread_file)
3083 AC_SUBST(tm_file_list)
3084 AC_SUBST(tm_include_list)
3085 AC_SUBST(tm_defines)
3086 AC_SUBST(tm_p_file_list)
3087 AC_SUBST(tm_p_include_list)
3088 AC_SUBST(xm_file_list)
3089 AC_SUBST(xm_include_list)
3090 AC_SUBST(xm_defines)
3091 AC_SUBST(target_noncanonical)
3092 AC_SUBST(c_target_objs)
3093 AC_SUBST(cxx_target_objs)
3094 AC_SUBST(target_cpu_default)
3096 AC_SUBST_FILE(language_hooks)
3098 # If it doesn't already exist, create document directory
3099 echo "checking for the document directory." 1>&2
3100 if test -d doc ; then
3107 if test x${build} = x${host} ; then
3108 if test x${host} = x${target} ; then
3109 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3111 echo "Links are now set up to build a cross-compiler" 1>&2
3112 echo " from ${host} to ${target}." 1>&2
3115 if test x${host} = x${target} ; then
3116 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3117 echo " for ${target}." 1>&2
3119 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3120 echo " from ${host} to ${target}." 1>&2
3124 # Configure the subdirectories
3125 # AC_CONFIG_SUBDIRS($subdirs)
3127 # Create the Makefile
3128 # and configure language subdirectories
3129 AC_CONFIG_FILES($all_outputs)
3131 AC_CONFIG_COMMANDS([default],
3133 case ${CONFIG_HEADERS} in
3134 *auto-host.h:config.in*)
3137 # Make sure all the subdirs exist.
3140 test -d $d || mkdir $d
3142 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3143 # bootstrapping and the installation procedure can still use
3144 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3145 # FLAGS_TO_PASS has been modified to solve the problem there.
3146 # This is virtually a duplicate of what happens in configure.lang; we do
3147 # an extra check to make sure this only happens if ln -s can be used.
3148 if test "$symbolic_link" = "ln -s"; then
3149 for d in ${subdirs} fixinc ; do
3150 STARTDIR=`${PWDCMD-pwd}`
3152 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3155 $symbolic_link ../$t $t 2>/dev/null
3162 symbolic_link='$symbolic_link'