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} ${extra_objs}"
1014 # Default the target-machine variables that were not explicitly set.
1015 if test x"$tm_file" = x
1016 then tm_file=$cpu_type/$cpu_type.h; fi
1018 if test x"$extra_headers" = x
1019 then extra_headers=; fi
1021 if test x$md_file = x
1022 then md_file=$cpu_type/$cpu_type.md; fi
1024 if test x$out_file = x
1025 then out_file=$cpu_type/$cpu_type.c; fi
1027 if test x"$tmake_file" = x
1028 then tmake_file=$cpu_type/t-$cpu_type
1031 if test x"$dwarf2" = xyes
1032 then tm_file="$tm_file tm-dwarf2.h"
1035 # Say what files are being used for the output code and MD file.
1036 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1037 echo "Using \`$srcdir/config/$md_file' as machine description file."
1039 # If any of the xm_file variables contain nonexistent files, warn
1040 # about them and drop them.
1043 for x in $build_xm_file; do
1044 if test -f $srcdir/config/$x
1046 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1052 for x in $host_xm_file; do
1053 if test -f $srcdir/config/$x
1055 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1061 for x in $xm_file; do
1062 if test -f $srcdir/config/$x
1064 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1070 for f in $tm_file; do
1073 if test $count = ax; then
1074 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1076 echo "Using the following target machine macro files:"
1077 for f in $tm_file; do
1078 echo " $srcdir/config/$f"
1082 if test x$need_64bit_hwint = xyes; then
1083 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1084 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1088 for f in $host_xm_file; do
1091 if test $count = a; then
1093 elif test $count = ax; then
1094 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1096 echo "Using the following host machine macro files:"
1097 for f in $host_xm_file; do
1098 echo " $srcdir/config/$f"
1101 echo "Using ${out_host_hook_obj} for host machine hooks."
1103 if test "$host_xm_file" != "$build_xm_file"; then
1105 for f in $build_xm_file; do
1108 if test $count = a; then
1110 elif test $count = ax; then
1111 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1113 echo "Using the following build machine macro files:"
1114 for f in $build_xm_file; do
1115 echo " $srcdir/config/$f"
1120 # Check if a valid thread package
1121 case ${enable_threads_flag} in
1124 target_thread_file='single'
1128 target_thread_file='single'
1130 aix | dce | gnat | irix | posix | rtems | \
1131 single | solaris | vxworks | win32 )
1132 target_thread_file=${enable_threads_flag}
1135 echo "${enable_threads_flag} is an unknown thread package" 1>&2
1140 if test x${thread_file} = x; then
1141 # No thread file set by target-specific clauses in config.gcc,
1142 # so use file chosen by default logic above
1143 thread_file=${target_thread_file}
1146 if test x$enable___cxa_atexit = xyes || \
1147 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1148 AC_CHECK_FUNC(__cxa_atexit,
1149 [AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1150 [Define if you want to use __cxa_atexit, rather than atexit, to
1151 register C++ destructors for local statics and global objects.
1152 This is essential for fully standards-compliant handling of
1153 destructors, but requires __cxa_atexit in libc.])],
1154 echo "__cxa_atexit can't be enabled on this target")
1157 # Look for a file containing extra machine modes.
1158 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1159 extra_modes_file='$(srcdir)'/config/${extra_modes}
1160 AC_SUBST(extra_modes_file)
1161 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1162 [Define to the name of a file containing a list of extra machine modes
1163 for this architecture.])
1166 # auto-host.h is the file containing items generated by autoconf and is
1167 # the first file included by config.h.
1168 # If host=build, it is correct to have bconfig include auto-host.h
1169 # as well. If host!=build, we are in error and need to do more
1170 # work to find out the build config parameters.
1171 if test x$host = x$build
1173 build_auto=auto-host.h
1176 # We create a subdir, then run autoconf in the subdir.
1177 # To prevent recursion we set host and build for the new
1178 # invocation of configure to the build for this invocation
1185 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1186 *) realsrcdir=../${srcdir};;
1188 saved_CFLAGS="${CFLAGS}"
1189 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1190 ${realsrcdir}/configure \
1191 --target=$target_alias --host=$build_alias --build=$build_alias
1192 CFLAGS="${saved_CFLAGS}"
1194 # We just finished tests for the build machine, so rename
1195 # the file auto-build.h in the gcc directory.
1196 mv auto-host.h ../auto-build.h
1199 build_auto=auto-build.h
1200 FORBUILD=../${build_subdir}
1204 tm_file="${tm_file} defaults.h"
1205 tm_p_file="${tm_p_file} tm-preds.h"
1206 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1207 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1208 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1209 # put this back in temporarily.
1210 xm_file="ansidecl.h ${xm_file}"
1216 # Get the version trigger filename from the toplevel
1217 if test "${with_gcc_version_trigger+set}" = set; then
1218 gcc_version_trigger=$with_gcc_version_trigger
1220 gcc_version_trigger=${srcdir}/version.c
1223 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1224 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1226 # Compile in configure arguments.
1227 if test -f configargs.h ; then
1228 # Being re-configured.
1229 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1230 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1232 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1235 # Double all backslashes and backslash all quotes to turn
1236 # gcc_config_arguments into a C string.
1237 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1238 $gcc_config_arguments
1240 gcc_config_arguments_str=`cat conftest.out`
1243 cat > configargs.h <<EOF
1244 /* Generated automatically. */
1245 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1246 static const char thread_model[] = "$thread_file";
1248 static const struct {
1249 const char *name, *value;
1250 } configure_default_options[] = $configure_default_options;
1254 # Internationalization
1256 VERSION="$gcc_version"
1260 ZW_GNU_GETTEXT_SISTER_DIR
1262 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1263 # -liconv on the link line twice.
1264 case "$LIBINTL" in *$LIBICONV*)
1268 # Windows32 Registry support for specifying GCC installation paths.
1269 AC_ARG_ENABLE(win32-registry,
1270 [ --disable-win32-registry
1271 disable lookup of installation paths in the
1272 Registry on Windows hosts
1273 --enable-win32-registry enable registry lookup (default)
1274 --enable-win32-registry=KEY
1275 use KEY instead of GCC version as the last portion
1276 of the registry key],,)
1278 win32 | pe | cygwin* | mingw32* | uwin*)
1279 AC_MSG_CHECKING(whether windows registry support is requested)
1280 if test "x$enable_win32_registry" != xno; then
1281 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1282 [Define to 1 if installation paths should be looked up in Windows32
1283 Registry. Ignored on non windows32 hosts.])
1285 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1290 # Check if user specified a different registry key.
1291 case "x${enable_win32_registry}" in
1294 gcc_cv_win32_registry_key="$VERSION"
1297 # no registry lookup.
1298 gcc_cv_win32_registry_key=''
1301 # user-specified key.
1302 gcc_cv_win32_registry_key="$enable_win32_registry"
1306 if test "x$enable_win32_registry" != xno; then
1307 AC_MSG_CHECKING(registry key on windows hosts)
1308 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1309 [Define to be the last portion of registry key on windows hosts.])
1310 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1315 # Get an absolute path to the GCC top-level source directory
1316 holddir=`${PWDCMD-pwd}`
1318 topdir=`${PWDCMD-pwd}`
1321 # Conditionalize the makefile for this host machine.
1323 for f in ${host_xmake_file}
1325 if test -f ${srcdir}/config/$f
1327 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1331 # Conditionalize the makefile for this target machine.
1333 for f in ${tmake_file}
1335 if test -f ${srcdir}/config/$f
1337 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1340 tmake_file="${tmake_file_}"
1342 symbolic_link='ln -s'
1344 # If the host doesn't support symlinks, modify CC in
1345 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1346 # Otherwise, we can use "CC=$(CC)".
1348 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1350 cc_set_by_configure="\$(CC)"
1351 quoted_cc_set_by_configure="\$(CC)"
1352 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1353 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1356 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1358 symbolic_link="cp -p"
1362 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1363 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1364 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1365 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1369 out_object_file=`basename $out_file .c`.o
1373 for f in $tm_file; do
1376 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1377 tm_include_list="${tm_include_list} $f"
1380 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1381 tm_include_list="${tm_include_list} config/$f"
1388 for f in $tm_p_file; do
1391 tm_p_file_list="${tm_p_file_list} $f"
1392 tm_p_include_list="${tm_p_include_list} $f"
1395 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1396 tm_p_include_list="${tm_p_include_list} config/$f"
1402 for f in $xm_file; do
1405 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1406 xm_include_list="${xm_include_list} $f"
1409 xm_file_list="${xm_file_list} $f"
1410 xm_include_list="${xm_include_list} $f"
1413 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1414 xm_include_list="${xm_include_list} config/$f"
1420 host_xm_include_list=
1421 for f in $host_xm_file; do
1424 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1425 host_xm_include_list="${host_xm_include_list} $f"
1428 host_xm_file_list="${host_xm_file_list} $f"
1429 host_xm_include_list="${host_xm_include_list} $f"
1432 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1433 host_xm_include_list="${host_xm_include_list} config/$f"
1439 for f in $build_xm_file; do
1442 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1443 build_xm_include_list="${build_xm_include_list} $f"
1445 auto-build.h | auto-host.h )
1446 build_xm_file_list="${build_xm_file_list} $f"
1447 build_xm_include_list="${build_xm_include_list} $f"
1450 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1451 build_xm_include_list="${build_xm_include_list} config/$f"
1456 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1457 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1458 CROSS= AC_SUBST(CROSS)
1459 ALL=all.internal AC_SUBST(ALL)
1460 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1461 if test x$host != x$target
1463 CROSS="-DCROSS_COMPILE"
1465 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1466 case "$host","$target" in
1467 # Darwin crosses can use the host system's libraries and headers,
1468 # because of the fat library support. Of course, it must be the
1469 # same version of Darwin on both sides. Allow the user to
1470 # just say --target=foo-darwin without a version number to mean
1471 # "the version on this system".
1472 *-*-darwin*,*-*-darwin*)
1473 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1474 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1475 if test $hostos = $targetos -o $targetos = darwin ; then
1477 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1482 i?86-*-*,x86_64-*-* \
1483 | powerpc*-*-*,powerpc64*-*-*)
1484 CROSS="$CROSS -DNATIVE_CROSS" ;;
1486 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1487 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1488 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1491 # If this is a cross-compiler that does not
1492 # have its own set of headers then define
1495 # If this is using newlib, without having the headers available now,
1496 # then define inhibit_libc in LIBGCC2_CFLAGS.
1497 # This prevents libgcc2 from containing any code which requires libc
1500 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1501 test x$with_newlib = xyes ; } &&
1502 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1503 inhibit_libc=-Dinhibit_libc
1505 AC_SUBST(inhibit_libc)
1507 # When building gcc with a cross-compiler, we need to adjust things so
1508 # that the generator programs are still built with the native compiler.
1509 # Also, we cannot run fixincludes or fix-header.
1511 # These are the normal (build=host) settings:
1512 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1513 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1514 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1515 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1517 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1519 # Possibly disable fixproto, on a per-target basis.
1520 case ${use_fixproto} in
1525 STMP_FIXPROTO=stmp-fixproto
1528 AC_SUBST(STMP_FIXPROTO)
1530 # And these apply if build != host, or we are generating coverage data
1531 if test x$build != x$host || test "x$coverage_flags" != x
1534 BUILD_PREFIX_1=build-
1535 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1537 if test "x$TARGET_SYSTEM_ROOT" = x; then
1543 # Expand extra_headers to include complete path.
1544 # This substitutes for lots of t-* files.
1546 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1547 for file in ${extra_headers} ; do
1548 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1551 # Add a definition of USE_COLLECT2 if system wants one.
1552 case $use_collect2 in
1553 no) use_collect2= ;;
1556 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1557 xm_defines="${xm_defines} USE_COLLECT2"
1561 # Identify the assembler which will work hand-in-glove with the newly
1562 # built GCC, so that we can examine its features. This is the assembler
1563 # which will be driven by the driver program.
1565 # If build != host, and we aren't building gas in-tree, we identify a
1566 # build->target assembler and hope that it will have the same features
1567 # as the host->target assembler we'll be using.
1568 AC_MSG_CHECKING(what assembler to use)
1571 gcc_cv_gas_major_version=
1572 gcc_cv_gas_minor_version=
1573 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1574 if test -x "$DEFAULT_ASSEMBLER"; then
1575 gcc_cv_as="$DEFAULT_ASSEMBLER"
1576 elif test -x "$AS"; then
1578 elif test -x as$host_exeext; then
1579 # Build using assembler in the current directory.
1580 gcc_cv_as=./as$host_exeext
1581 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1582 && test -f ../gas/Makefile; then
1583 # Single tree build which includes gas.
1585 _gcc_COMPUTE_GAS_VERSION
1586 rm -f as$host_exeext
1587 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1588 in_tree_gas_is_elf=no
1589 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1590 || (grep 'obj_format = multi' ../gas/Makefile \
1591 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1593 in_tree_gas_is_elf=yes
1597 if test "x$gcc_cv_as" = x; then
1598 # Search the same directories that the installed compiler will
1599 # search. Else we may find the wrong assembler and lose. If we
1600 # do not find a suitable assembler binary, then try the user's
1603 # Also note we have to check MD_EXEC_PREFIX before checking the
1604 # user's path. Unfortunately, there is no good way to get at the
1605 # value of MD_EXEC_PREFIX here. So we do a brute force search
1606 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1607 # to be fixed as part of the make/configure rewrite too.
1609 if test "x$exec_prefix" = xNONE; then
1610 if test "x$prefix" = xNONE; then
1611 test_prefix=/usr/local
1616 test_prefix=$exec_prefix
1619 # If the loop below does not find an assembler, then use whatever
1620 # one we can find in the users's path.
1622 if test "x$program_prefix" != xNONE; then
1623 gcc_cv_as=${program_prefix}as$host_exeext
1625 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1628 test_dirs="$test_prefix/lib/gcc-lib/$target_noncanonical/$gcc_version \
1629 $test_prefix/lib/gcc-lib/$target_noncanonical \
1630 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1631 /usr/lib/gcc/$target_noncanonical \
1632 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1633 $test_prefix/$target_noncanonical/bin"
1635 if test x$host = x$target; then
1636 test_dirs="$test_dirs \
1641 /bsd43/usr/lib/cmplrs/cc \
1642 /usr/cross64/usr/bin \
1643 /usr/lib/cmplrs/cc \
1644 /sysv/usr/lib/cmplrs/cc \
1645 /svr4/usr/lib/cmplrs/cc \
1649 for dir in $test_dirs; do
1650 if test -x $dir/as$host_exeext; then
1651 gcc_cv_as=$dir/as$host_exeext
1656 case $in_tree_gas in
1658 AC_MSG_RESULT("newly built gas")
1661 AC_MSG_RESULT($gcc_cv_as)
1665 # Identify the linker which will work hand-in-glove with the newly
1666 # built GCC, so that we can examine its features. This is the linker
1667 # which will be driven by the driver program.
1669 # If build != host, and we aren't building gas in-tree, we identify a
1670 # build->target linker and hope that it will have the same features
1671 # as the host->target linker we'll be using.
1672 AC_MSG_CHECKING(what linker to use)
1675 gcc_cv_gld_major_version=
1676 gcc_cv_gld_minor_version=
1677 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1678 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1679 if test -x "$DEFAULT_LINKER"; then
1680 gcc_cv_ld="$DEFAULT_LINKER"
1681 elif test -x "$LD"; then
1683 elif test -x collect-ld$host_exeext; then
1684 # Build using linker in the current directory.
1685 gcc_cv_ld=./collect-ld$host_exeext
1686 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1687 && test -f ../ld/Makefile; then
1688 # Single tree build which includes ld.
1690 in_tree_ld_is_elf=no
1691 if (grep 'EMUL = .*elf' ../ld/Makefile \
1692 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1693 in_tree_ld_is_elf=yes
1695 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
1698 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1700 if test x$gcc_cv_gld_version != x; then
1705 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1706 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1708 rm -f collect-ld$host_exeext
1709 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1713 if test "x$gcc_cv_ld" = x; then
1714 # Search the same directories that the installed compiler will
1715 # search. Else we may find the wrong linker and lose. If we
1716 # do not find a suitable linker binary, then try the user's
1719 # Also note we have to check MD_EXEC_PREFIX before checking the
1720 # user's path. Unfortunately, there is no good way to get at the
1721 # value of MD_EXEC_PREFIX here. So we do a brute force search
1722 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1723 # to be fixed as part of the make/configure rewrite too.
1725 if test "x$exec_prefix" = xNONE; then
1726 if test "x$prefix" = xNONE; then
1727 test_prefix=/usr/local
1732 test_prefix=$exec_prefix
1735 # If the loop below does not find an linker, then use whatever
1736 # one we can find in the users's path.
1738 if test "x$program_prefix" != xNONE; then
1739 gcc_cv_ld=${program_prefix}ld$host_exeext
1741 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1744 test_dirs="$test_prefix/lib/gcc-lib/$target_noncanonical/$gcc_version \
1745 $test_prefix/lib/gcc-lib/$target_noncanonical \
1746 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1747 /usr/lib/gcc/$target_noncanonical \
1748 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1749 $test_prefix/$target_noncanonical/bin"
1751 if test x$host = x$target; then
1752 test_dirs="$test_dirs \
1757 /bsd43/usr/lib/cmplrs/cc \
1758 /usr/cross64/usr/bin \
1759 /usr/lib/cmplrs/cc \
1760 /sysv/usr/lib/cmplrs/cc \
1761 /svr4/usr/lib/cmplrs/cc \
1765 for dir in $test_dirs; do
1766 if test -x $dir/ld$host_exeext; then
1767 gcc_cv_ld=$dir/ld$host_exeext
1774 AC_MSG_RESULT("newly built ld")
1777 AC_MSG_RESULT($gcc_cv_ld)
1781 # Figure out what nm we will be using.
1782 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1783 AC_MSG_CHECKING(what nm to use)
1785 if test -x nm$host_exeext; then
1786 gcc_cv_nm=./nm$host_exeext
1787 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1788 && test -f ../binutils/Makefile; then
1789 # Single tree build which includes binutils.
1791 gcc_cv_nm=./nm$host_exeext
1792 rm -f nm$host_exeext
1793 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1794 elif test "x$program_prefix" != xNONE; then
1795 gcc_cv_nm=${program_prefix}nm$host_exeext
1797 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1800 yes) AC_MSG_RESULT("newly built nm") ;;
1801 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1804 # Figure out what objdump we will be using.
1805 AC_MSG_CHECKING(what objdump to use)
1807 if test -x objdump$host_exeext; then
1808 gcc_cv_objdump=./objdump$host_exeext
1809 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1810 && test -f ../binutils/Makefile; then
1811 # Single tree build which includes binutils.
1813 gcc_cv_objdump=./objdump$host_exeext
1814 rm -f objdump$host_exeext
1815 $symbolic_link ../binutils/objdump$host_exeext \
1816 objdump$host_exeext 2>/dev/null
1817 elif test "x$program_prefix" != xNONE; then
1818 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1820 gcc_cv_objdump=`echo objdump | \
1821 sed ${program_transform_name}`$host_exeext
1823 case $in_tree_objdump in
1824 yes) AC_MSG_RESULT("newly built objdump") ;;
1825 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1828 # Figure out what assembler alignment features are present.
1829 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1833 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1834 [Define if your assembler supports .balign and .p2align.])])
1836 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1839 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1840 [Define if your assembler supports specifying the maximum number
1841 of bytes to skip when using the GAS .p2align command.])])
1843 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1845 [conftest_label1: .word 0
1847 conftest_label2: .word 0
1849 [if test x$gcc_cv_nm != x; then
1850 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1851 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1852 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1854 else gcc_cv_as_subsection_m1=yes
1856 rm -f conftest.nm1 conftest.nm2
1858 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1859 [Define if your assembler supports .subsection and .subsection -1 starts
1860 emitting at the beginning of your section.])])
1862 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1865 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1867 # .hidden needs to be supported in both the assembler and the linker,
1868 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1869 # This is irritatingly difficult to feature test for; we have to check the
1870 # date string after the version number. If we've got an in-tree
1871 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1873 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1874 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1879 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1880 [if test $in_tree_ld = yes ; then
1882 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1883 && test $in_tree_ld_is_elf = yes; then
1884 gcc_cv_ld_hidden=yes
1887 gcc_cv_ld_hidden=yes
1888 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1889 if echo "$ld_ver" | grep GNU > /dev/null; then
1891 ld_vers=`echo $ld_ver | sed -n \
1892 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1893 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1894 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1895 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1896 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1897 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1898 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1899 if test 0"$ld_date" -lt 20020404; then
1900 if test -n "$ld_date"; then
1901 # If there was date string, but was earlier than 2002-04-04, fail
1903 elif test -z "$ld_vers"; then
1904 # If there was no date string nor ld version number, something is wrong
1907 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1908 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1909 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1910 test -z "$ld_vers_patch" && ld_vers_patch=0
1911 if test "$ld_vers_major" -lt 2; then
1913 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1914 gcc_cv_ld_hidden="no"
1915 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1923 hppa64*-*-hpux* | ia64*-*-hpux*)
1924 gcc_cv_ld_hidden=yes
1932 libgcc_visibility=no
1933 AC_SUBST(libgcc_visibility)
1934 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1935 libgcc_visibility=yes
1936 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1937 [Define if your assembler and linker support .hidden.])
1940 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1941 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1949 [# GAS versions before 2.11 do not support uleb128,
1950 # despite appearing to.
1951 # ??? There exists an elf-specific test that will crash
1952 # the assembler. Perhaps it's better to figure out whether
1953 # arbitrary sections are supported and try the test.
1954 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
1955 if echo "$as_ver" | grep GNU > /dev/null; then
1957 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1958 as_major=`echo $as_ver | sed 's/\..*//'`
1959 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1961 if test $as_major -eq 2 && test $as_minor -lt 11
1963 else gcc_cv_as_leb128=yes
1966 [AC_DEFINE(HAVE_AS_LEB128, 1,
1967 [Define if your assembler supports .sleb128 and .uleb128.])])
1969 # GAS versions up to and including 2.11.0 may mis-optimize
1971 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1979 .section .eh_frame,"aw",@progbits
1981 .4byte .LECIE1-.LSCIE1
1995 .4byte .LEFDE1-.LASFDE1
1997 .4byte .LASFDE1-__FRAME_BEGIN__
2005 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2006 cat > conftest.lit <<EOF
2007 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2008 0010 01000000 12000000 18000000 00000000 ................
2009 0020 08000000 04080000 0044 .........D @&t@
2011 cat > conftest.big <<EOF
2012 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2013 0010 00000001 00000012 00000018 00000000 ................
2014 0020 00000008 04000000 0844 .........D @&t@
2016 # If the assembler didn't choke, and we can objdump,
2017 # and we got the correct data, then succeed.
2018 if test x$gcc_cv_objdump != x \
2019 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2020 | tail -3 > conftest.got \
2021 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2022 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2024 gcc_cv_as_eh_frame=yes
2025 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2026 gcc_cv_as_eh_frame=buggy
2028 # Uh oh, what do we do now?
2029 gcc_cv_as_eh_frame=no
2032 if test $gcc_cv_as_eh_frame = buggy; then
2033 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2034 [Define if your assembler mis-optimizes .eh_frame data.])
2037 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2038 [elf,2,12,0], [--fatal-warnings],
2039 [.section .rodata.str, "aMS", @progbits, 1])
2040 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2041 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2042 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2044 # Thread-local storage - the check is heavily parametrized.
2053 .section ".tdata","awT",@progbits
2056 ldq $27,__tls_get_addr($29) !literal!1
2057 lda $16,foo($29) !tlsgd!1
2058 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2059 ldq $27,__tls_get_addr($29) !literal!2
2060 lda $16,foo($29) !tlsldm!2
2061 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2062 ldq $1,foo($29) !gotdtprel
2063 ldah $2,foo($29) !dtprelhi
2064 lda $3,foo($2) !dtprello
2065 lda $4,foo($29) !dtprel
2066 ldq $1,foo($29) !gottprel
2067 ldah $2,foo($29) !tprelhi
2068 lda $3,foo($2) !tprello
2069 lda $4,foo($29) !tprel'
2072 tls_as_opt=--fatal-warnings
2076 .section ".tdata","awT",@progbits
2080 leal foo@TLSGD(,%ebx,1), %eax
2081 leal foo@TLSLDM(%ebx), %eax
2082 leal foo@DTPOFF(%eax), %edx
2083 movl foo@GOTTPOFF(%ebx), %eax
2084 subl foo@GOTTPOFF(%ebx), %eax
2085 addl foo@GOTNTPOFF(%ebx), %eax
2086 movl foo@INDNTPOFF, %eax
2087 movl $foo@TPOFF, %eax
2088 subl $foo@TPOFF, %eax
2089 leal foo@NTPOFF(%ecx), %eax'
2092 tls_as_opt=--fatal-warnings
2096 .section ".tdata","awT",@progbits
2100 leaq foo@TLSGD(%rip), %rdi
2101 leaq foo@TLSLD(%rip), %rdi
2102 leaq foo@DTPOFF(%rax), %rdx
2103 movq foo@GOTTPOFF(%rip), %rax
2104 movq $foo@TPOFF, %rax'
2107 tls_as_opt=--fatal-warnings
2111 .section ".tdata","awT",@progbits
2114 addl r16 = @ltoff(@dtpmod(foo#)), gp
2115 addl r17 = @ltoff(@dtprel(foo#)), gp
2116 addl r18 = @ltoff(@tprel(foo#)), gp
2117 addl r19 = @dtprel(foo#), gp
2118 adds r21 = @dtprel(foo#), r13
2119 movl r23 = @dtprel(foo#)
2120 addl r20 = @tprel(foo#), gp
2121 adds r22 = @tprel(foo#), r13
2122 movl r24 = @tprel(foo#)'
2125 tls_as_opt=--fatal-warnings
2129 .section ".tdata","awT",@progbits
2137 addi 3,31,ld0@got@tlsgd
2139 addi 3,31,x1@got@tlsld
2142 addis 9,3,x2@dtprel@ha
2143 addi 9,9,x2@dtprel@l
2144 lwz 9,x3@got@tprel(31)
2147 addis 9,2,x2@tprel@ha
2148 addi 9,9,x2@tprel@l'
2151 tls_as_opt="-a32 --fatal-warnings"
2155 .section ".tdata","awT",@progbits
2163 addi 3,2,ld0@got@tlsgd
2169 addi 3,2,x1@got@tlsld
2175 addis 9,3,x2@dtprel@ha
2176 addi 9,9,x2@dtprel@l
2179 ld 9,x3@got@dtprel(2)
2185 tls_as_opt="-a64 --fatal-warnings"
2189 .section ".tdata","awT",@progbits
2198 l %r1,foo@GOTNTPOFF(%r12)
2199 l %r1,0(%r1):tls_load:foo
2200 bas %r14,0(%r1,%r13):tls_gdcall:foo
2201 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2204 tls_as_opt="-m31 --fatal-warnings"
2208 .section ".tdata","awT",@progbits
2216 lg %r1,foo@GOTNTPOFF(%r12)
2217 larl %r1,foo@INDNTPOFF
2218 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2219 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2222 tls_as_opt="-m64 -Aesame --fatal-warnings"
2224 sh-*-* | sh[34]-*-*)
2226 .section ".tdata","awT",@progbits
2236 tls_as_opt=--fatal-warnings
2240 sparc*-sun-solaris2.*)
2247 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2249 .section ".tdata",#alloc,#write,#tls
2252 sethi %tgd_hi22(foo), %o0
2253 add %o0, %tgd_lo10(foo), %o1
2254 add %l7, %o1, %o0, %tgd_add(foo)
2255 call __tls_get_addr, %tgd_call(foo)
2256 sethi %tldm_hi22(foo), %l1
2257 add %l1, %tldm_lo10(foo), %l2
2258 add %l7, %l2, %o0, %tldm_add(foo)
2259 call __tls_get_addr, %tldm_call(foo)
2260 sethi %tldo_hix22(foo), %l3
2261 xor %l3, %tldo_lox10(foo), %l4
2262 add %o0, %l4, %l5, %tldo_add(foo)
2263 sethi %tie_hi22(foo), %o3
2264 add %o3, %tie_lo10(foo), %o3
2265 ld [%l7 + %o3], %o2, %tie_ld(foo)
2266 add %g7, %o2, %o4, %tie_add(foo)
2267 sethi %tle_hix22(foo), %l1
2268 xor %l1, %tle_lox10(foo), %o5
2269 ld [%g7 + %o5], %o1'
2274 .section ".tdata","awT",@progbits
2277 sethi %tgd_hi22(foo), %o0
2278 add %o0, %tgd_lo10(foo), %o1
2279 add %l7, %o1, %o0, %tgd_add(foo)
2280 call __tls_get_addr, %tgd_call(foo)
2281 sethi %tldm_hi22(foo), %l1
2282 add %l1, %tldm_lo10(foo), %l2
2283 add %l7, %l2, %o0, %tldm_add(foo)
2284 call __tls_get_addr, %tldm_call(foo)
2285 sethi %tldo_hix22(foo), %l3
2286 xor %l3, %tldo_lox10(foo), %l4
2287 add %o0, %l4, %l5, %tldo_add(foo)
2288 sethi %tie_hi22(foo), %o3
2289 add %o3, %tie_lo10(foo), %o3
2290 ld [%l7 + %o3], %o2, %tie_ld(foo)
2291 add %g7, %o2, %o4, %tie_add(foo)
2292 sethi %tle_hix22(foo), %l1
2293 xor %l1, %tle_lox10(foo), %o5
2294 ld [%g7 + %o5], %o1'
2297 tls_as_opt="-32 --fatal-warnings"
2302 if test -z "$tls_first_major"; then
2303 : # If we don't have a check, assume no support.
2305 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2306 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2307 [AC_DEFINE(HAVE_AS_TLS, 1,
2308 [Define if your assembler supports thread-local storage.])])
2311 # Target-specific assembler checks.
2314 # All TARGET_ABI_OSF targets.
2315 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2316 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2317 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2320 extbl $3, $2, $3 !lituse_bytoff!1
2321 ldq $2, a($29) !literal!1
2322 ldq $4, b($29) !literal!2
2323 ldq_u $3, 0($2) !lituse_base!1
2324 ldq $27, f($29) !literal!5
2325 jsr $26, ($27), f !lituse_jsr!5
2326 ldah $29, 0($26) !gpdisp!3
2327 lda $0, c($29) !gprel
2328 ldah $1, d($29) !gprelhigh
2329 lda $1, d($1) !gprellow
2330 lda $29, 0($29) !gpdisp!3],,
2331 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2332 [Define if your assembler supports explicit relocations.])])
2336 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2337 [.register %g2, #scratch],,
2338 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2339 [Define if your assembler supports .register.])])
2341 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2343 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2344 [Define if your assembler supports -relax option.])])
2346 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2347 gcc_cv_as_sparc_ua_pcrel,,
2355 .uaword %r_disp32(foo)],
2356 [if test x$gcc_cv_ld != x \
2357 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2358 gcc_cv_as_sparc_ua_pcrel=yes
2361 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2362 [Define if your assembler and linker support unaligned PC relative relocs.])
2364 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2365 gcc_cv_as_sparc_ua_pcrel_hidden,,
2370 .uaword %r_disp32(foo)
2371 .byte 0x32, 0x33, 0x34
2376 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2377 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2378 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2379 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2380 if $gcc_cv_objdump -R conftest 2> /dev/null \
2381 | grep 'DISP32' > /dev/null 2>&1; then
2384 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2388 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2389 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2390 ]) # unaligned pcrel relocs
2392 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2393 gcc_cv_as_sparc_offsetable_lo10,,
2396 or %g1, %lo(ab) + 12, %g1
2397 or %g1, %lo(ab + 12), %g1],
2398 [if test x$gcc_cv_objdump != x \
2399 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2400 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2401 gcc_cv_as_offsetable_lo10=yes
2403 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2404 [Define if your assembler supports offsetable %lo().])])
2408 i[34567]86-*-* | x86_64-*-*)
2410 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2411 gcc_cv_as_ix86_filds_fists,
2412 [2,9,0],, [filds mem; fists mem],,
2413 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2414 [Define if your assembler uses the new HImode fild and fist notation.])])
2416 gcc_GAS_CHECK_FEATURE([cmov syntax],
2417 gcc_cv_as_ix86_cmov_sun_syntax,,,
2418 [cmovl.l %edx, %eax],,
2419 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2420 [Define if your assembler supports the Sun syntax for cmov.])])
2422 # This one is used unconditionally by i386.[ch]; it is to be defined
2423 # to 1 if the feature is present, 0 otherwise.
2424 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2425 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2431 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2432 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2433 [Define true if the assembler supports '.long foo@GOTOFF'.])
2437 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2438 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2440 addl r15 = @ltoffx(x#), gp
2442 ld8.mov r16 = [[r15]], x#],,
2443 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2444 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2450 *-*-aix*) conftest_s=' .csect .text[[PR]]
2452 *-*-darwin*) conftest_s=' .text
2454 *) conftest_s=' .text
2458 gcc_GAS_CHECK_FEATURE([mfcr field support],
2459 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2461 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2462 [Define if your assembler supports mfcr field.])])
2466 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2467 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2468 [ lw $4,%gp_rel(foo)($4)],,
2469 [if test x$target_cpu_default = x
2470 then target_cpu_default=MASK_EXPLICIT_RELOCS
2471 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2476 # ??? Not all targets support dwarf2 debug_line, even within a version
2477 # of gas. Moreover, we need to emit a valid instruction to trigger any
2478 # info to the output file. So, as supported targets are added to gas 2.11,
2479 # add some instruction here to (also) show we expect this might work.
2480 # ??? Once 2.11 is released, probably need to add first known working
2481 # version to the per-target configury.
2483 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2484 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2485 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2488 ia64*-*-* | s390*-*-*)
2495 if test x"$insn" != x; then
2497 .file 1 \"conftest.s\"
2500 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2501 gcc_cv_as_dwarf2_debug_line,
2502 [elf,2,11,0],, [$conftest_s],
2503 [# ??? This fails with non-gnu grep. Maybe use objdump?
2504 if grep debug_line conftest.o > /dev/null 2>&1; then
2505 gcc_cv_as_dwarf2_debug_line=yes
2508 # The .debug_line file table must be in the exact order that
2509 # we specified the files, since these indices are also used
2510 # by DW_AT_decl_file. Approximate this test by testing if
2511 # the assembler bitches if the same index is assigned twice.
2512 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2513 gcc_cv_as_dwarf2_file_buggy,,,
2517 if test $gcc_cv_as_dwarf2_debug_line = yes \
2518 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2519 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2520 [Define if your assembler supports dwarf2 .file/.loc directives,
2521 and preserves file table indices exactly as given.])
2524 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2525 gcc_cv_as_gdwarf2_flag,
2526 [elf,2,11,0], [--gdwarf2], [$insn],,
2527 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2528 [Define if your assembler supports the --gdwarf2 option.])])
2530 gcc_GAS_CHECK_FEATURE([--gstabs option],
2531 gcc_cv_as_gstabs_flag,
2532 [elf,2,11,0], [--gstabs], [$insn],
2533 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2534 # and warns about it, but still exits successfully. So check for
2536 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2538 else gcc_cv_as_gstabs_flag=yes
2540 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2541 [Define if your assembler supports the --gstabs option.])])
2544 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2545 gcc_cv_ld_ro_rw_mix=unknown
2546 if test $in_tree_ld = yes ; then
2547 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2548 && test $in_tree_ld_is_elf = yes; then
2549 gcc_cv_ld_ro_rw_mix=read-write
2551 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2552 echo '.section myfoosect, "a"' > conftest1.s
2553 echo '.section myfoosect, "aw"' > conftest2.s
2554 echo '.byte 1' >> conftest2.s
2555 echo '.section myfoosect, "a"' > conftest3.s
2556 echo '.byte 0' >> conftest3.s
2557 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2558 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2559 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2560 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2561 conftest2.o conftest3.o > /dev/null 2>&1; then
2562 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2563 | sed -e '/myfoosect/!d' -e N`
2564 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2565 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2566 gcc_cv_ld_ro_rw_mix=read-only
2568 gcc_cv_ld_ro_rw_mix=read-write
2573 rm -f conftest.* conftest[123].*
2576 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2577 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2578 [Define if your linker links a mix of read-only
2579 and read-write sections into a read-write section.])
2581 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2583 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2584 gcc_cv_ld_eh_frame_hdr=no
2585 if test $in_tree_ld = yes ; then
2586 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2587 && test $in_tree_ld_is_elf = yes; then
2588 gcc_cv_ld_eh_frame_hdr=yes
2590 elif test x$gcc_cv_ld != x; then
2591 # Check if linker supports --eh-frame-hdr option
2592 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2593 gcc_cv_ld_eh_frame_hdr=yes
2596 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2597 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2598 [Define if your linker supports --eh-frame-hdr option.])
2600 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2602 AC_MSG_CHECKING(linker position independent executable support)
2604 if test $in_tree_ld = yes ; then
2605 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2606 && test $in_tree_ld_is_elf = yes; then
2609 elif test x$gcc_cv_ld != x; then
2610 # Check if linker supports -pie option
2611 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2615 if test x"$gcc_cv_ld_pie" = xyes; then
2616 AC_DEFINE(HAVE_LD_PIE, 1,
2617 [Define if your linker supports -pie option.])
2619 AC_MSG_RESULT($gcc_cv_ld_pie)
2621 if test x$with_sysroot = x && test x$host = x$target \
2622 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2623 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2624 [Define to PREFIX/include if cpp should also search that directory.])
2627 # Figure out what language subdirectories are present.
2628 # Look if the user specified --enable-languages="..."; if not, use
2629 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2631 # NB: embedded tabs in this IF block -- do not untabify
2632 if test x"${enable_languages+set}" != xset; then
2633 if test x"${LANGUAGES+set}" = xset; then
2634 enable_languages="${LANGUAGES}"
2635 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2638 enable_languages=all
2641 if test x"${enable_languages}" = x \
2642 || test x"${enable_languages}" = xyes;
2644 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2647 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2649 # First scan to see if an enabled language requires some other language.
2650 # We assume that a given config-lang.in will list all the language
2651 # front ends it requires, even if some are required indirectly.
2652 for lang in ${srcdir}/*/config-lang.in
2655 # The odd quoting in the next line works around
2656 # an apparent bug in bash 1.12 on linux.
2658 ${srcdir}/[*]/config-lang.in)
2661 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2662 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2663 for other in $this_lang_requires
2665 case ,${enable_languages}, in
2671 enable_languages="$enable_languages,$other"
2680 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2683 for lang in ${srcdir}/*/config-lang.in
2686 # The odd quoting in the next line works around
2687 # an apparent bug in bash 1.12 on linux.
2689 ${srcdir}/[*]/config-lang.in) ;;
2691 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2692 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2693 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2694 if test "x$lang_alias" = x
2696 echo "$lang doesn't set \$language." 1>&2
2699 case ${build_by_default},${enable_languages}, in
2700 *,$lang_alias,*) add_this_lang=yes ;;
2701 no,*) add_this_lang=no ;;
2702 *,all,*) add_this_lang=yes ;;
2703 *) add_this_lang=no ;;
2705 found_languages="${found_languages} ${lang_alias}"
2706 if test x"${add_this_lang}" = xyes; then
2708 ${srcdir}/ada/config-lang.in)
2709 if test x$have_gnat = xyes ; then
2710 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2714 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2724 for expected_language in ${expected_languages} ..
2726 if test "${expected_language}" != ..; then
2727 missing_language="${expected_language}"
2728 if test "${expected_language}" = "c" \
2729 || test "${expected_language}" = "all"; then
2732 for found_language in ${found_languages} ..
2734 if test "${found_language}" != ..; then
2735 if test "${expected_language}" = "${found_language}"; then
2740 if test "x${missing_language}" != x; then
2741 missing_languages="${missing_languages} ${missing_language}"
2746 if test "x$missing_languages" != x; then
2748 The following requested languages were not found:${missing_languages}
2749 The following languages were available: c${found_languages}])
2752 # Make gthr-default.h if we have a thread file.
2754 if test $thread_file != single; then
2755 rm -f gthr-default.h
2756 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2757 gthread_flags=-DHAVE_GTHR_DEFAULT
2759 AC_SUBST(gthread_flags)
2761 # Find out what GC implementation we want, or may, use.
2763 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2770 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2775 echo "Using $GGC for garbage collection."
2777 # Use the system's zlib library.
2779 zlibinc="-I\$(srcdir)/../zlib"
2780 AC_ARG_WITH(system-zlib,
2781 [ --with-system-zlib use installed libz],
2788 dnl Very limited version of automake's enable-maintainer-mode
2790 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2791 dnl maintainer-mode is disabled by default
2792 AC_ARG_ENABLE(maintainer-mode,
2793 [ --enable-maintainer-mode
2794 enable make rules and dependencies not useful
2795 (and sometimes confusing) to the casual installer],
2796 maintainer_mode=$enableval,
2799 AC_MSG_RESULT($maintainer_mode)
2801 if test "$maintainer_mode" = "yes"; then
2808 # Make empty files to contain the specs and options for each language.
2809 # Then add #include lines to for a compiler that has specs and/or options.
2814 for subdir in . $subdirs
2816 if test -f $srcdir/$subdir/lang.opt; then
2817 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2819 if test -f $srcdir/$subdir/lang-specs.h; then
2820 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2822 if test -f $srcdir/$subdir/$subdir-tree.def; then
2823 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2827 # These (without "all_") are set in each config-lang.in.
2828 # `language' must be a single word so is spelled singularly.
2833 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2834 # List of language makefile fragments.
2836 # List of language subdirectory makefiles. Deprecated.
2838 # Files for gengtype
2839 all_gtfiles="$target_gtfiles"
2840 # Files for gengtype with language
2841 all_gtfiles_files_langs=
2842 all_gtfiles_files_files=
2844 # Add the language fragments.
2845 # Languages are added via two mechanisms. Some information must be
2846 # recorded in makefile variables, these are defined in config-lang.in.
2847 # We accumulate them and plug them into the main Makefile.
2848 # The other mechanism is a set of hooks for each of the main targets
2849 # like `clean', `install', etc.
2851 language_hooks="Make-hooks"
2861 . ${srcdir}/$s/config-lang.in
2862 if test "x$language" = x
2864 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2867 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2868 if test -f ${srcdir}/$s/Makefile.in
2869 then all_lang_makefiles="$s/Makefile"
2871 all_languages="$all_languages $language"
2872 if test "x$boot_language" = xyes
2874 all_boot_languages="$all_boot_languages $language"
2876 all_compilers="$all_compilers $compilers"
2877 all_stagestuff="$all_stagestuff $stagestuff"
2878 all_outputs="$all_outputs $outputs"
2879 all_gtfiles="$all_gtfiles $gtfiles"
2882 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2883 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2887 # Pick up gtfiles for c
2890 . ${srcdir}/c-config-lang.in
2891 all_gtfiles="$all_gtfiles $gtfiles"
2894 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2895 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2899 for language in $all_languages
2901 check_languages="$check_languages check-$language"
2904 # We link each language in with a set of hooks, reached indirectly via
2909 target_list="all.build all.cross start.encap rest.encap tags \
2910 install-normal install-common install-man \
2911 uninstall info man srcextra srcman srcinfo \
2912 mostlyclean clean distclean maintainer-clean \
2913 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2914 for t in $target_list
2917 for lang in $all_languages
2921 echo "lang.$t: $x" >> Make-hooks
2926 echo "dir ." > .gdbinit
2927 echo "dir ${srcdir}" >> .gdbinit
2928 if test x$gdb_needs_out_file_path = xyes
2930 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2932 if test "x$subdirs" != x; then
2935 echo "dir ${srcdir}/$s" >> .gdbinit
2938 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2940 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2941 # absolute path for gcc_tooldir based on inserting the number of up-directory
2942 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2943 # $(libsubdir)/@(unlibsubdir) based path.
2944 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2945 # make and thus we'd get different behavior depending on where we built the
2947 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2948 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
2950 changequote(<<, >>)dnl
2951 # An explanation of the sed strings:
2952 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2953 # -e 's|/$||' match a trailing forward slash and eliminates it
2954 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2955 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2957 # (*) Note this pattern overwrites the first character of the string
2958 # with a forward slash if one is not already present. This is not a
2959 # problem because the exact names of the sub-directories concerned is
2960 # unimportant, just the number of them matters.
2962 # The practical upshot of these patterns is like this:
2964 # prefix exec_prefix result
2965 # ------ ----------- ------
2967 # /foo/ /foo/bar ../
2968 # /foo /foo/bar/ ../
2969 # /foo/ /foo/bar/ ../
2970 # /foo /foo/bar/ugg ../../
2973 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
2974 changequote([, ])dnl
2976 AC_SUBST(gcc_tooldir)
2979 # Find a directory in which to install a shared libgcc.
2981 AC_ARG_ENABLE(version-specific-runtime-libs,
2982 [ --enable-version-specific-runtime-libs
2983 specify that runtime libraries should be
2984 installed in a compiler-specific directory])
2986 AC_ARG_WITH(slibdir,
2987 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2988 slibdir="$with_slibdir",
2989 if test "${enable_version_specific_runtime_libs+set}" = set; then
2990 slibdir='$(libsubdir)'
2991 elif test "$host" != "$target"; then
2992 slibdir='$(build_tooldir)/lib'
2998 objdir=`${PWDCMD-pwd}`
3001 # Substitute configuration variables
3004 AC_SUBST(all_boot_languages)
3005 AC_SUBST(all_compilers)
3006 AC_SUBST(all_gtfiles)
3007 AC_SUBST(all_gtfiles_files_langs)
3008 AC_SUBST(all_gtfiles_files_files)
3009 AC_SUBST(all_lang_makefrags)
3010 AC_SUBST(all_lang_makefiles)
3011 AC_SUBST(all_languages)
3012 AC_SUBST(all_stagestuff)
3013 AC_SUBST(build_exeext)
3014 AC_SUBST(build_install_headers_dir)
3015 AC_SUBST(build_xm_file_list)
3016 AC_SUBST(build_xm_include_list)
3017 AC_SUBST(build_xm_defines)
3018 AC_SUBST(check_languages)
3019 AC_SUBST(cc_set_by_configure)
3020 AC_SUBST(quoted_cc_set_by_configure)
3021 AC_SUBST(cpp_install_dir)
3022 AC_SUBST(xmake_file)
3023 AC_SUBST(tmake_file)
3024 AC_SUBST(extra_headers_list)
3025 AC_SUBST(extra_objs)
3026 AC_SUBST(extra_parts)
3027 AC_SUBST(extra_passes)
3028 AC_SUBST(extra_programs)
3029 AC_SUBST(float_h_file)
3030 AC_SUBST(gcc_config_arguments)
3031 AC_SUBST(gcc_gxx_include_dir)
3032 AC_SUBST(libstdcxx_incdir)
3033 AC_SUBST(gcc_version)
3034 AC_SUBST(gcc_version_full)
3035 AC_SUBST(gcc_version_trigger)
3036 AC_SUBST(host_exeext)
3037 AC_SUBST(host_extra_gcc_objs)
3038 AC_SUBST(host_xm_file_list)
3039 AC_SUBST(host_xm_include_list)
3040 AC_SUBST(host_xm_defines)
3041 AC_SUBST(out_host_hook_obj)
3043 AC_SUBST(lang_opt_files)
3044 AC_SUBST(lang_specs_files)
3045 AC_SUBST(lang_tree_files)
3046 AC_SUBST(local_prefix)
3048 AC_SUBST(objc_boehm_gc)
3050 AC_SUBST(out_object_file)
3051 AC_SUBST(stage_prefix_set_by_configure)
3052 AC_SUBST(quoted_stage_prefix_set_by_configure)
3053 AC_SUBST(symbolic_link)
3054 AC_SUBST(thread_file)
3055 AC_SUBST(tm_file_list)
3056 AC_SUBST(tm_include_list)
3057 AC_SUBST(tm_defines)
3058 AC_SUBST(tm_p_file_list)
3059 AC_SUBST(tm_p_include_list)
3060 AC_SUBST(xm_file_list)
3061 AC_SUBST(xm_include_list)
3062 AC_SUBST(xm_defines)
3063 AC_SUBST(target_noncanonical)
3064 AC_SUBST(c_target_objs)
3065 AC_SUBST(cxx_target_objs)
3066 AC_SUBST(target_cpu_default)
3068 AC_SUBST_FILE(language_hooks)
3070 # If it doesn't already exist, create document directory
3071 echo "checking for the document directory." 1>&2
3072 if test -d doc ; then
3079 if test x${build} = x${host} ; then
3080 if test x${host} = x${target} ; then
3081 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3083 echo "Links are now set up to build a cross-compiler" 1>&2
3084 echo " from ${host} to ${target}." 1>&2
3087 if test x${host} = x${target} ; then
3088 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3089 echo " for ${target}." 1>&2
3091 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3092 echo " from ${host} to ${target}." 1>&2
3096 # Configure the subdirectories
3097 # AC_CONFIG_SUBDIRS($subdirs)
3099 # Create the Makefile
3100 # and configure language subdirectories
3101 AC_CONFIG_FILES($all_outputs)
3103 AC_CONFIG_COMMANDS([default],
3105 case ${CONFIG_HEADERS} in
3106 *auto-host.h:config.in*)
3109 # Make sure all the subdirs exist.
3112 test -d $d || mkdir $d
3114 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3115 # bootstrapping and the installation procedure can still use
3116 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3117 # FLAGS_TO_PASS has been modified to solve the problem there.
3118 # This is virtually a duplicate of what happens in configure.lang; we do
3119 # an extra check to make sure this only happens if ln -s can be used.
3120 if test "$symbolic_link" = "ln -s"; then
3121 for d in ${subdirs} fixinc ; do
3122 STARTDIR=`${PWDCMD-pwd}`
3124 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3127 $symbolic_link ../$t $t 2>/dev/null
3134 symbolic_link='$symbolic_link'