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 # Find the native compiler
255 # autoconf is lame and doesn't give us any substitution variable for this.
256 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
257 NO_MINUS_C_MINUS_O=yes
259 OUTPUT_OPTION='-o $@'
261 AC_SUBST(NO_MINUS_C_MINUS_O)
262 AC_SUBST(OUTPUT_OPTION)
264 # -------------------------
265 # Check C compiler features
266 # -------------------------
268 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
269 ac_cv_prog_cc_no_long_long,
270 [save_CFLAGS="$CFLAGS"
271 CFLAGS="-Wno-long-long"
272 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
273 ac_cv_prog_cc_no_long_long=no)
274 CFLAGS="$save_CFLAGS"])
282 # sizeof(char) is 1 by definition.
283 AC_COMPILE_CHECK_SIZEOF(void *)
284 AC_COMPILE_CHECK_SIZEOF(short)
285 AC_COMPILE_CHECK_SIZEOF(int)
286 AC_COMPILE_CHECK_SIZEOF(long)
287 if test $ac_cv_c_long_long = yes; then
288 AC_COMPILE_CHECK_SIZEOF(long long)
290 if test $ac_cv_c___int64 = yes; then
291 AC_COMPILE_CHECK_SIZEOF(__int64)
298 # See if GNAT has been installed
301 # ---------------------
302 # Warnings and checking
303 # ---------------------
306 if test $ac_cv_prog_cc_no_long_long = yes ; then
307 strict1_warn="-pedantic -Wno-long-long"
309 AC_SUBST(strict1_warn)
311 # If the native compiler is GCC, we can enable warnings even in stage1.
312 # That's useful for people building cross-compilers, or just running a
315 if test "x$GCC" = "xyes"; then
316 warn_cflags='$(GCC_WARN_CFLAGS)'
318 AC_SUBST(warn_cflags)
320 # Enable -Werror in bootstrap stage2 and later.
321 # Change the default to "no" on release branches.
322 AC_ARG_ENABLE(werror,
323 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
325 if test x$enable_werror = xyes ; then
330 # Enable expensive internal checks
331 AC_ARG_ENABLE(checking,
332 [ --enable-checking[=LIST]
333 enable expensive run-time checks. With LIST,
334 enable only specific categories of checks.
335 Categories are: misc,tree,rtl,rtlflag,gc,gcac,fold;
336 default is misc,tree,gc,rtlflag],
342 ac_gc_always_collect=
344 case "${enableval}" in
345 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
346 ac_rtlflag_checking=1 ;;
348 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
349 set fnord $enableval; shift
354 misc) ac_checking=1 ;;
355 tree) ac_tree_checking=1 ;;
356 rtlflag) ac_rtlflag_checking=1 ;;
357 rtl) ac_rtl_checking=1 ;;
358 gc) ac_gc_checking=1 ;;
359 gcac) ac_gc_always_collect=1 ;;
360 fold) ac_fold_checking=1 ;;
361 valgrind) ac_checking_valgrind=1 ;;
362 *) AC_MSG_ERROR(unknown check category $check) ;;
368 # Enable some checks by default for development versions of GCC
369 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
371 if test x$ac_checking != x ; then
372 AC_DEFINE(ENABLE_CHECKING, 1,
373 [Define if you want more run-time sanity checks. This one gets a grab
374 bag of miscellaneous but relatively cheap checks.])
375 nocommon_flag=-fno-common
377 AC_SUBST(nocommon_flag)
378 if test x$ac_tree_checking != x ; then
379 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
380 [Define if you want all operations on trees (the basic data
381 structure of the front ends) to be checked for dynamic type safety
382 at runtime. This is moderately expensive.])
384 if test x$ac_rtl_checking != x ; then
385 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
386 [Define if you want all operations on RTL (the basic data structure
387 of the optimizer and back end) to be checked for dynamic type safety
388 at runtime. This is quite expensive.])
390 if test x$ac_rtlflag_checking != x ; then
391 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
392 [Define if you want RTL flag accesses to be checked against the RTL
393 codes that are supported for each access macro. This is relatively
396 if test x$ac_gc_checking != x ; then
397 AC_DEFINE(ENABLE_GC_CHECKING, 1,
398 [Define if you want the garbage collector to do object poisoning and
399 other memory allocation checks. This is quite expensive.])
401 if test x$ac_gc_always_collect != x ; then
402 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
403 [Define if you want the garbage collector to operate in maximally
404 paranoid mode, validating the entire heap and collecting garbage at
405 every opportunity. This is extremely expensive.])
407 if test x$ac_fold_checking != x ; then
408 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
409 [Define if you want fold checked that it never destructs its argument.
410 This is quite expensive.])
412 valgrind_path_defines=
415 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
416 dnl # an if statement. This was the source of very frustrating bugs
417 dnl # in converting to autoconf 2.5x!
418 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
420 if test x$ac_checking_valgrind != x ; then
421 # It is certainly possible that there's valgrind but no valgrind.h.
422 # GCC relies on making annotations so we must have both.
423 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
425 [#include <valgrind/memcheck.h>
426 #ifndef VALGRIND_DISCARD
427 #error VALGRIND_DISCARD not defined
429 [gcc_cv_header_valgrind_memcheck_h=yes],
430 [gcc_cv_header_valgrind_memcheck_h=no])
431 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
432 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
434 [#include <memcheck.h>
435 #ifndef VALGRIND_DISCARD
436 #error VALGRIND_DISCARD not defined
438 [gcc_cv_header_memcheck_h=yes],
439 gcc_cv_header_memcheck_h=no)
440 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
441 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
442 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
443 if test "x$valgrind_path" = "x" \
444 || (test $have_valgrind_h = no \
445 && test $gcc_cv_header_memcheck_h = no \
446 && test $gcc_cv_header_valgrind_memcheck_h = no); then
447 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
449 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
450 valgrind_command="$valgrind_path -q"
451 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
452 [Define if you want to run subprograms and generated programs
453 through valgrind (a memory checker). This is extremely expensive.])
454 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
455 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
456 [Define if valgrind's valgrind/memcheck.h header is installed.])
458 if test $gcc_cv_header_memcheck_h = yes; then
459 AC_DEFINE(HAVE_MEMCHECK_H, 1,
460 [Define if valgrind's memcheck.h header is installed.])
463 AC_SUBST(valgrind_path_defines)
464 AC_SUBST(valgrind_command)
466 # Enable code coverage collection
467 AC_ARG_ENABLE(coverage,
468 [ --enable-coverage[=LEVEL]
469 enable compiler\'s code coverage collection.
470 Use to measure compiler performance and locate
471 unused parts of the compiler. With LEVEL, specify
472 optimization. Values are opt, noopt,
474 [case "${enableval}" in
476 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
479 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
482 AC_MSG_ERROR(unknown coverage setting $enableval)
486 AC_SUBST(coverage_flags)
488 AC_ARG_ENABLE(gather-detailed-mem-stats,
489 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
490 [enable_gather_detailed_mem_stats=no])
491 if test x$enable_gather_detailed_mem_stats = xyes ; then
492 AC_DEFINE(GATHER_STATISTICS, 1,
493 [Define to enable detailed memory allocation stats gathering.])
496 # -------------------------------
497 # Miscenalleous configure options
498 # -------------------------------
502 [ --with-stabs arrange to use stabs instead of host debug format],
506 # Determine whether or not multilibs are enabled.
507 AC_ARG_ENABLE(multilib,
508 [ --enable-multilib enable library support for multiple ABIs],
509 [], [enable_multilib=yes])
510 AC_SUBST(enable_multilib)
512 # Enable __cxa_atexit for C++.
513 AC_ARG_ENABLE(__cxa_atexit,
514 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
518 # Pass with no value to take the default
519 # Pass with a value to specify a thread package
520 AC_ARG_ENABLE(threads,
521 [ --enable-threads enable thread usage for target GCC
522 --enable-threads=LIB use LIB thread package for target GCC],,
524 # Save in case it gets overwritten in config.gcc
525 enable_threads_flag=$enable_threads
527 AC_ARG_ENABLE(objc-gc,
528 [ --enable-objc-gc enable the use of Boehm's garbage collector with
529 the GNU Objective-C runtime],
530 if test x$enable_objc_gc = xno; then
538 [ --with-dwarf2 force the default debug format to be DWARF 2],
539 dwarf2="$with_dwarf2",
542 AC_ARG_ENABLE(shared,
543 [ --disable-shared don't provide a shared libgcc],
545 case $enable_shared in
549 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
550 for pkg in $enableval; do
551 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
558 ], [enable_shared=yes])
559 AC_SUBST(enable_shared)
562 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
564 case ${with_sysroot} in
565 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
566 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
569 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
570 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
572 if test "x$exec_prefix" = xNONE; then
573 if test "x$prefix" = xNONE; then
574 test_prefix=/usr/local
579 test_prefix=$exec_prefix
581 case ${TARGET_SYSTEM_ROOT} in
582 "${test_prefix}"|"${test_prefix}/"*|\
583 '${exec_prefix}'|'${exec_prefix}/'*)
584 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
585 TARGET_SYSTEM_ROOT_DEFINE="$t"
590 TARGET_SYSTEM_ROOT_DEFINE=
591 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
593 AC_SUBST(TARGET_SYSTEM_ROOT)
594 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
595 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
597 # Build with intermodule optimisations
598 AC_ARG_ENABLE(intermodule,
599 [ --enable-intermodule build the compiler in one step],
600 [case ${enable_intermodule} in
601 yes) onestep="-onestep";;
607 # -------------------------
608 # Checks for other programs
609 # -------------------------
613 # Find some useful tools
615 # We need awk to run opts.sh (to create options.c and options.h).
616 # Bail out if it's missing.
618 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
626 # See if cmp has --ignore-initial.
627 gcc_AC_PROG_CMP_IGNORE_INITIAL
629 # See if we have the mktemp command.
630 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
632 # Do we have a single-tree copy of texinfo?
633 if test -f $srcdir/../texinfo/Makefile.in; then
634 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
635 gcc_cv_prog_makeinfo_modern=yes
636 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
638 # See if makeinfo has been installed and is modern enough
639 # that we can use it.
640 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
641 [GNU texinfo.* \([0-9][0-9.]*\)],
645 if test $gcc_cv_prog_makeinfo_modern = no; then
647 *** Makeinfo is missing or too old.
648 *** Info documentation will not be built.])
651 BUILD_INFO=info AC_SUBST(BUILD_INFO)
654 # Is pod2man recent enough to regenerate manpages?
655 AC_MSG_CHECKING([for recent Pod::Man])
656 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
658 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
665 dnl Don't use AC_PROG_LEX; we insist on flex.
666 dnl LEXLIB is not useful in gcc.
667 if test -f $srcdir/../flex/skel.c; then
668 FLEX='$(objdir)/../flex/flex'
670 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
674 # The -L switch is so bison can find its skeleton file.
675 if test -f $srcdir/../bison/bison.simple; then
676 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
678 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
681 # --------------------
682 # Checks for C headers
683 # --------------------
685 AC_MSG_CHECKING(for GNU C library)
686 AC_CACHE_VAL(gcc_cv_glibc,
688 [#include <features.h>],[
689 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
690 #error Not a GNU C library system
694 AC_MSG_RESULT($gcc_cv_glibc)
695 if test $gcc_cv_glibc = yes; then
696 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
699 # Need to reject headers which give warnings, so that the -Werror bootstrap
700 # works later. *sigh* This needs to come before all header checks.
705 gcc_AC_HEADER_STDBOOL
708 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
709 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
710 sys/resource.h sys/param.h sys/times.h sys/stat.h \
711 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
713 # Check for thread headers.
714 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
715 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
717 # These tests can't be done till we know if we have limits.h.
725 # Stage specific cflags for build.
731 stage1_cflags="-Wa,-J"
737 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
738 # sources; use -no-cpp-precomp to get to GNU cpp.
739 # Apple's GCC has bugs in designated initializer handling, so disable
741 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
744 AC_SUBST(stage1_cflags)
746 # These libraries may be used by collect2.
747 # We may need a special search path to get them linked.
748 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
750 for libs in '' -lld -lmld \
751 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
752 '-L/usr/lib/cmplrs/cc3.11 -lmld'
755 AC_TRY_LINK_FUNC(ldopen,
756 [gcc_cv_collect2_libs="$libs"; break])
759 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
760 case $gcc_cv_collect2_libs in
762 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
764 AC_SUBST(COLLECT2_LIBS)
766 # When building Ada code on Alpha, we need exc_resume which is usually in
767 # -lexc. So test for it.
770 AC_SEARCH_LIBS(exc_resume, exc)
773 AC_SUBST(GNAT_LIBEXC)
775 # Some systems put ldexp and frexp in libm instead of libc; assume
776 # they're both in the same place. jcf-dump needs them.
779 AC_SEARCH_LIBS(ldexp, m)
784 # Use <inttypes.h> only if it exists,
785 # doesn't clash with <sys/types.h>, and declares intmax_t.
786 AC_MSG_CHECKING(for inttypes.h)
787 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
789 [#include <sys/types.h>
790 #include <inttypes.h>],
792 [gcc_cv_header_inttypes_h=yes],
793 gcc_cv_header_inttypes_h=no)])
794 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
795 if test $gcc_cv_header_inttypes_h = yes; then
796 AC_DEFINE(HAVE_INTTYPES_H, 1,
797 [Define if you have a working <inttypes.h> header file.])
800 dnl Disabled until we have a complete test for buggy enum bitfields.
801 dnl gcc_AC_C_ENUM_BF_UNSIGNED
803 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
804 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
805 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
806 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
809 if test x$ac_cv_func_mbstowcs = xyes; then
810 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
811 [ AC_TRY_RUN([#include <stdlib.h>
817 gcc_cv_func_mbstowcs_works=yes,
818 gcc_cv_func_mbstowcs_works=no,
819 gcc_cv_func_mbstowcs_works=yes)])
820 if test x$gcc_cv_func_mbstowcs_works = xyes; then
821 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
822 [Define this macro if mbstowcs does not crash when its
823 first argument is NULL.])
827 AC_CHECK_TYPE(ssize_t, int)
829 # Try to determine the array type of the second argument of getgroups
830 # for the target system (int or gid_t).
832 if test "${target}" = "${build}"; then
833 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
836 # This condition may need some tweaking. It should include all
837 # targets where the array type of the second argument of getgroups
838 # is int and the type of gid_t is not equivalent to int.
839 *-*-sunos* | *-*-ultrix*)
840 TARGET_GETGROUPS_T=int
843 TARGET_GETGROUPS_T=gid_t
847 AC_SUBST(TARGET_GETGROUPS_T)
849 gcc_AC_FUNC_PRINTF_PTR
850 gcc_AC_FUNC_MMAP_BLACKLIST
854 # Under VMS, vfork works very differently than on Unix. The standard test
855 # won't work, and it isn't easily adaptable. It makes more sense to
857 ac_cv_func_vfork_works=yes
863 # Until we have in-tree GNU iconv:
865 AC_SUBST(LIBICONV_DEP)
869 # We will need to find libiberty.h and ansidecl.h
870 saved_CFLAGS="$CFLAGS"
871 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
872 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
873 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
874 fprintf_unlocked strstr errno snprintf vasprintf \
875 malloc realloc calloc free basename getopt clock, , ,[
876 #include "ansidecl.h"
877 #include "system.h"])
879 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
880 #include "ansidecl.h"
882 #ifdef HAVE_SYS_RESOURCE_H
883 #include <sys/resource.h>
888 #include "ansidecl.h"
890 #ifdef HAVE_SYS_RESOURCE_H
891 #include <sys/resource.h>
893 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
894 [Define to \`long' if <sys/resource.h> doesn't define.])])
896 gcc_AC_CHECK_DECLS(ldgetname, , ,[
897 #include "ansidecl.h"
904 gcc_AC_CHECK_DECLS(times, , ,[
905 #include "ansidecl.h"
907 #ifdef HAVE_SYS_TIMES_H
908 #include <sys/times.h>
912 # More time-related stuff.
913 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
915 #include "ansidecl.h"
917 #ifdef HAVE_SYS_TIMES_H
918 #include <sys/times.h>
920 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
921 if test $ac_cv_struct_tms = yes; then
922 AC_DEFINE(HAVE_STRUCT_TMS, 1,
923 [Define if <sys/times.h> defines struct tms.])
926 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
927 # revisit after autoconf 2.50.
928 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
930 #include "ansidecl.h"
932 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
933 if test $gcc_cv_type_clock_t = yes; then
934 AC_DEFINE(HAVE_CLOCK_T, 1,
935 [Define if <time.h> defines clock_t.])
938 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
940 #include "ansidecl.h"
943 [if ((uchar *)0) return 0;
944 if (sizeof(uchar)) return 0;],
945 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
946 if test $ac_cv_type_uchar = yes; then
947 AC_DEFINE(HAVE_UCHAR, 1,
948 [Define if <sys/types.h> defines \`uchar'.])
951 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
952 CFLAGS="$saved_CFLAGS"
954 gcc_AC_INITFINI_ARRAY
956 # mkdir takes a single argument on some systems.
957 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
965 # With Setjmp/Longjmp based exception handling.
966 AC_ARG_ENABLE(sjlj-exceptions,
967 [ --enable-sjlj-exceptions
968 arrange to use setjmp/longjmp exception handling],
969 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
970 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
971 [Define 0/1 to force the choice for exception handling model.])])
973 if test x$host = x$target; then
974 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
976 use_libunwind_default=no
978 # Use libunwind based exception handling.
979 AC_ARG_ENABLE(libunwind-exceptions,
980 [ --enable-libunwind-exceptions force use libunwind for exceptions],
981 use_libunwind_exceptions=$enableval,
982 use_libunwind_exceptions=$use_libunwind_default)
983 if test x"$use_libunwind_exceptions" = xyes; then
984 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
985 [Define if gcc should use -lunwind.])
988 # --------------------------------------------------------
989 # Build, host, and target specific configuration fragments
990 # --------------------------------------------------------
992 # Collect build-machine-specific information.
993 . ${srcdir}/config.build
995 # Collect host-machine-specific information.
996 . ${srcdir}/config.host
1000 # Collect target-machine-specific information.
1001 . ${srcdir}/config.gcc
1003 extra_objs="${host_extra_objs} ${extra_objs}"
1005 # Default the target-machine variables that were not explicitly set.
1006 if test x"$tm_file" = x
1007 then tm_file=$cpu_type/$cpu_type.h; fi
1009 if test x"$extra_headers" = x
1010 then extra_headers=; fi
1012 if test x$md_file = x
1013 then md_file=$cpu_type/$cpu_type.md; fi
1015 if test x$out_file = x
1016 then out_file=$cpu_type/$cpu_type.c; fi
1018 if test x"$tmake_file" = x
1019 then tmake_file=$cpu_type/t-$cpu_type
1022 if test x"$dwarf2" = xyes
1023 then tm_file="$tm_file tm-dwarf2.h"
1026 # Say what files are being used for the output code and MD file.
1027 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1028 echo "Using \`$srcdir/config/$md_file' as machine description file."
1030 # If any of the xm_file variables contain nonexistent files, warn
1031 # about them and drop them.
1034 for x in $build_xm_file; do
1035 if test -f $srcdir/config/$x
1037 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1043 for x in $host_xm_file; do
1044 if test -f $srcdir/config/$x
1046 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1052 for x in $xm_file; do
1053 if test -f $srcdir/config/$x
1055 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1061 for f in $tm_file; do
1064 if test $count = ax; then
1065 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1067 echo "Using the following target machine macro files:"
1068 for f in $tm_file; do
1069 echo " $srcdir/config/$f"
1073 if test x$need_64bit_hwint = xyes; then
1074 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1075 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1079 for f in $host_xm_file; do
1082 if test $count = a; then
1084 elif test $count = ax; then
1085 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1087 echo "Using the following host machine macro files:"
1088 for f in $host_xm_file; do
1089 echo " $srcdir/config/$f"
1092 echo "Using ${out_host_hook_obj} for host machine hooks."
1094 if test "$host_xm_file" != "$build_xm_file"; then
1096 for f in $build_xm_file; do
1099 if test $count = a; then
1101 elif test $count = ax; then
1102 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1104 echo "Using the following build machine macro files:"
1105 for f in $build_xm_file; do
1106 echo " $srcdir/config/$f"
1111 # Check if a valid thread package
1112 case ${enable_threads_flag} in
1115 target_thread_file='single'
1119 target_thread_file='single'
1121 aix | dce | gnat | irix | posix | rtems | \
1122 single | solaris | vxworks | win32 )
1123 target_thread_file=${enable_threads_flag}
1126 echo "${enable_threads_flag} is an unknown thread package" 1>&2
1131 if test x${thread_file} = x; then
1132 # No thread file set by target-specific clauses in config.gcc,
1133 # so use file chosen by default logic above
1134 thread_file=${target_thread_file}
1137 if test x$enable___cxa_atexit = xyes || \
1138 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1139 AC_CHECK_FUNC(__cxa_atexit,
1140 [AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1141 [Define if you want to use __cxa_atexit, rather than atexit, to
1142 register C++ destructors for local statics and global objects.
1143 This is essential for fully standards-compliant handling of
1144 destructors, but requires __cxa_atexit in libc.])],
1145 echo "__cxa_atexit can't be enabled on this target")
1148 # Look for a file containing extra machine modes.
1149 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1150 extra_modes_file='$(srcdir)'/config/${extra_modes}
1151 AC_SUBST(extra_modes_file)
1152 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1153 [Define to the name of a file containing a list of extra machine modes
1154 for this architecture.])
1157 # auto-host.h is the file containing items generated by autoconf and is
1158 # the first file included by config.h.
1159 # If host=build, it is correct to have bconfig include auto-host.h
1160 # as well. If host!=build, we are in error and need to do more
1161 # work to find out the build config parameters.
1162 if test x$host = x$build
1164 build_auto=auto-host.h
1167 # We create a subdir, then run autoconf in the subdir.
1168 # To prevent recursion we set host and build for the new
1169 # invocation of configure to the build for this invocation
1176 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1177 *) realsrcdir=../${srcdir};;
1179 saved_CFLAGS="${CFLAGS}"
1180 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1181 ${realsrcdir}/configure \
1182 --target=$target_alias --host=$build_alias --build=$build_alias
1183 CFLAGS="${saved_CFLAGS}"
1185 # We just finished tests for the build machine, so rename
1186 # the file auto-build.h in the gcc directory.
1187 mv auto-host.h ../auto-build.h
1190 build_auto=auto-build.h
1191 FORBUILD=../${build_subdir}
1195 tm_file="${tm_file} defaults.h"
1196 tm_p_file="${tm_p_file} tm-preds.h"
1197 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1198 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1199 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1200 # put this back in temporarily.
1201 xm_file="ansidecl.h ${xm_file}"
1207 # Get the version trigger filename from the toplevel
1208 if test "${with_gcc_version_trigger+set}" = set; then
1209 gcc_version_trigger=$with_gcc_version_trigger
1211 gcc_version_trigger=${srcdir}/version.c
1214 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1215 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1217 # Compile in configure arguments.
1218 if test -f configargs.h ; then
1219 # Being re-configured.
1220 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1221 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1223 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1226 # Double all backslashes and backslash all quotes to turn
1227 # gcc_config_arguments into a C string.
1228 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1229 $gcc_config_arguments
1231 gcc_config_arguments_str=`cat conftest.out`
1234 cat > configargs.h <<EOF
1235 /* Generated automatically. */
1236 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1237 static const char thread_model[] = "$thread_file";
1239 static const struct {
1240 const char *name, *value;
1241 } configure_default_options[] = $configure_default_options;
1245 # Internationalization
1247 VERSION="$gcc_version"
1251 ZW_GNU_GETTEXT_SISTER_DIR
1253 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1254 # -liconv on the link line twice.
1255 case "$LIBINTL" in *$LIBICONV*)
1259 # Windows32 Registry support for specifying GCC installation paths.
1260 AC_ARG_ENABLE(win32-registry,
1261 [ --disable-win32-registry
1262 disable lookup of installation paths in the
1263 Registry on Windows hosts
1264 --enable-win32-registry enable registry lookup (default)
1265 --enable-win32-registry=KEY
1266 use KEY instead of GCC version as the last portion
1267 of the registry key],,)
1269 win32 | pe | cygwin* | mingw32* | uwin*)
1270 AC_MSG_CHECKING(whether windows registry support is requested)
1271 if test "x$enable_win32_registry" != xno; then
1272 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1273 [Define to 1 if installation paths should be looked up in Windows32
1274 Registry. Ignored on non windows32 hosts.])
1276 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1281 # Check if user specified a different registry key.
1282 case "x${enable_win32_registry}" in
1285 gcc_cv_win32_registry_key="$VERSION"
1288 # no registry lookup.
1289 gcc_cv_win32_registry_key=''
1292 # user-specified key.
1293 gcc_cv_win32_registry_key="$enable_win32_registry"
1297 if test "x$enable_win32_registry" != xno; then
1298 AC_MSG_CHECKING(registry key on windows hosts)
1299 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1300 [Define to be the last portion of registry key on windows hosts.])
1301 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1306 # Get an absolute path to the GCC top-level source directory
1307 holddir=`${PWDCMD-pwd}`
1309 topdir=`${PWDCMD-pwd}`
1312 # Conditionalize the makefile for this host machine.
1314 for f in ${host_xmake_file}
1316 if test -f ${srcdir}/config/$f
1318 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1322 # Conditionalize the makefile for this target machine.
1324 for f in ${tmake_file}
1326 if test -f ${srcdir}/config/$f
1328 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1331 tmake_file="${tmake_file_}"
1333 symbolic_link='ln -s'
1335 # If the host doesn't support symlinks, modify CC in
1336 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1337 # Otherwise, we can use "CC=$(CC)".
1339 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1341 cc_set_by_configure="\$(CC)"
1342 quoted_cc_set_by_configure="\$(CC)"
1343 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1344 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1347 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1349 symbolic_link="cp -p"
1353 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1354 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1355 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1356 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1360 out_object_file=`basename $out_file .c`.o
1364 for f in $tm_file; do
1367 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1368 tm_include_list="${tm_include_list} $f"
1371 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1372 tm_include_list="${tm_include_list} config/$f"
1379 for f in $tm_p_file; do
1382 tm_p_file_list="${tm_p_file_list} $f"
1383 tm_p_include_list="${tm_p_include_list} $f"
1386 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1387 tm_p_include_list="${tm_p_include_list} config/$f"
1393 for f in $xm_file; do
1396 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1397 xm_include_list="${xm_include_list} $f"
1400 xm_file_list="${xm_file_list} $f"
1401 xm_include_list="${xm_include_list} $f"
1404 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1405 xm_include_list="${xm_include_list} config/$f"
1411 host_xm_include_list=
1412 for f in $host_xm_file; do
1415 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1416 host_xm_include_list="${host_xm_include_list} $f"
1419 host_xm_file_list="${host_xm_file_list} $f"
1420 host_xm_include_list="${host_xm_include_list} $f"
1423 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1424 host_xm_include_list="${host_xm_include_list} config/$f"
1430 for f in $build_xm_file; do
1433 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1434 build_xm_include_list="${build_xm_include_list} $f"
1436 auto-build.h | auto-host.h )
1437 build_xm_file_list="${build_xm_file_list} $f"
1438 build_xm_include_list="${build_xm_include_list} $f"
1441 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1442 build_xm_include_list="${build_xm_include_list} config/$f"
1447 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1448 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1449 CROSS= AC_SUBST(CROSS)
1450 ALL=all.internal AC_SUBST(ALL)
1451 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1452 if test x$host != x$target
1454 CROSS="-DCROSS_COMPILE"
1456 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1457 case "$host","$target" in
1458 # Darwin crosses can use the host system's libraries and headers,
1459 # because of the fat library support. Of course, it must be the
1460 # same version of Darwin on both sides. Allow the user to
1461 # just say --target=foo-darwin without a version number to mean
1462 # "the version on this system".
1463 *-*-darwin*,*-*-darwin*)
1464 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1465 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1466 if test $hostos = $targetos -o $targetos = darwin ; then
1468 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1473 i?86-*-*,x86_64-*-* \
1474 | powerpc*-*-*,powerpc64*-*-*)
1475 CROSS="$CROSS -DNATIVE_CROSS" ;;
1477 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1478 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1479 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1482 # If this is a cross-compiler that does not
1483 # have its own set of headers then define
1486 # If this is using newlib, without having the headers available now,
1487 # then define inhibit_libc in LIBGCC2_CFLAGS.
1488 # This prevents libgcc2 from containing any code which requires libc
1491 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1492 test x$with_newlib = xyes ; } &&
1493 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1494 inhibit_libc=-Dinhibit_libc
1496 AC_SUBST(inhibit_libc)
1498 # When building gcc with a cross-compiler, we need to adjust things so
1499 # that the generator programs are still built with the native compiler.
1500 # Also, we cannot run fixincludes or fix-header.
1502 # These are the normal (build=host) settings:
1503 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1504 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1505 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1506 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1508 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1510 # Possibly disable fixproto, on a per-target basis.
1511 case ${use_fixproto} in
1516 STMP_FIXPROTO=stmp-fixproto
1519 AC_SUBST(STMP_FIXPROTO)
1521 # And these apply if build != host, or we are generating coverage data
1522 if test x$build != x$host || test "x$coverage_flags" != x
1525 BUILD_PREFIX_1=build-
1526 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1528 if test "x$TARGET_SYSTEM_ROOT" = x; then
1534 # Expand extra_headers to include complete path.
1535 # This substitutes for lots of t-* files.
1537 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1538 for file in ${extra_headers} ; do
1539 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1542 # Add a definition of USE_COLLECT2 if system wants one.
1543 case $use_collect2 in
1544 no) use_collect2= ;;
1547 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1548 xm_defines="${xm_defines} USE_COLLECT2"
1552 # Identify the assembler which will work hand-in-glove with the newly
1553 # built GCC, so that we can examine its features. This is the assembler
1554 # which will be driven by the driver program.
1556 # If build != host, and we aren't building gas in-tree, we identify a
1557 # build->target assembler and hope that it will have the same features
1558 # as the host->target assembler we'll be using.
1559 AC_MSG_CHECKING(what assembler to use)
1562 gcc_cv_gas_major_version=
1563 gcc_cv_gas_minor_version=
1564 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1565 if test -x "$DEFAULT_ASSEMBLER"; then
1566 gcc_cv_as="$DEFAULT_ASSEMBLER"
1567 elif test -x "$AS"; then
1569 elif test -x as$host_exeext; then
1570 # Build using assembler in the current directory.
1571 gcc_cv_as=./as$host_exeext
1572 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1573 && test -f ../gas/Makefile; then
1574 # Single tree build which includes gas.
1576 _gcc_COMPUTE_GAS_VERSION
1577 rm -f as$host_exeext
1578 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1579 in_tree_gas_is_elf=no
1580 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1581 || (grep 'obj_format = multi' ../gas/Makefile \
1582 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1584 in_tree_gas_is_elf=yes
1588 if test "x$gcc_cv_as" = x; then
1589 # Search the same directories that the installed compiler will
1590 # search. Else we may find the wrong assembler and lose. If we
1591 # do not find a suitable assembler binary, then try the user's
1594 # Also note we have to check MD_EXEC_PREFIX before checking the
1595 # user's path. Unfortunately, there is no good way to get at the
1596 # value of MD_EXEC_PREFIX here. So we do a brute force search
1597 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1598 # to be fixed as part of the make/configure rewrite too.
1600 if test "x$exec_prefix" = xNONE; then
1601 if test "x$prefix" = xNONE; then
1602 test_prefix=/usr/local
1607 test_prefix=$exec_prefix
1610 # If the loop below does not find an assembler, then use whatever
1611 # one we can find in the users's path.
1613 if test "x$program_prefix" != xNONE; then
1614 gcc_cv_as=${program_prefix}as$host_exeext
1616 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1619 test_dirs="$test_prefix/lib/gcc-lib/$target_noncanonical/$gcc_version \
1620 $test_prefix/lib/gcc-lib/$target_noncanonical \
1621 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1622 /usr/lib/gcc/$target_noncanonical \
1623 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1624 $test_prefix/$target_noncanonical/bin"
1626 if test x$host = x$target; then
1627 test_dirs="$test_dirs \
1632 /bsd43/usr/lib/cmplrs/cc \
1633 /usr/cross64/usr/bin \
1634 /usr/lib/cmplrs/cc \
1635 /sysv/usr/lib/cmplrs/cc \
1636 /svr4/usr/lib/cmplrs/cc \
1640 for dir in $test_dirs; do
1641 if test -x $dir/as$host_exeext; then
1642 gcc_cv_as=$dir/as$host_exeext
1647 case $in_tree_gas in
1649 AC_MSG_RESULT("newly built gas")
1652 AC_MSG_RESULT($gcc_cv_as)
1656 # Identify the linker which will work hand-in-glove with the newly
1657 # built GCC, so that we can examine its features. This is the linker
1658 # which will be driven by the driver program.
1660 # If build != host, and we aren't building gas in-tree, we identify a
1661 # build->target linker and hope that it will have the same features
1662 # as the host->target linker we'll be using.
1663 AC_MSG_CHECKING(what linker to use)
1666 gcc_cv_gld_major_version=
1667 gcc_cv_gld_minor_version=
1668 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1669 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1670 if test -x "$DEFAULT_LINKER"; then
1671 gcc_cv_ld="$DEFAULT_LINKER"
1672 elif test -x "$LD"; then
1674 elif test -x collect-ld$host_exeext; then
1675 # Build using linker in the current directory.
1676 gcc_cv_ld=./collect-ld$host_exeext
1677 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1678 && test -f ../ld/Makefile; then
1679 # Single tree build which includes ld.
1681 in_tree_ld_is_elf=no
1682 if (grep 'EMUL = .*elf' ../ld/Makefile \
1683 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1684 in_tree_ld_is_elf=yes
1686 for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
1689 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1691 if test x$gcc_cv_gld_version != x; then
1696 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1697 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1699 rm -f collect-ld$host_exeext
1700 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1704 if test "x$gcc_cv_ld" = x; then
1705 # Search the same directories that the installed compiler will
1706 # search. Else we may find the wrong linker and lose. If we
1707 # do not find a suitable linker binary, then try the user's
1710 # Also note we have to check MD_EXEC_PREFIX before checking the
1711 # user's path. Unfortunately, there is no good way to get at the
1712 # value of MD_EXEC_PREFIX here. So we do a brute force search
1713 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1714 # to be fixed as part of the make/configure rewrite too.
1716 if test "x$exec_prefix" = xNONE; then
1717 if test "x$prefix" = xNONE; then
1718 test_prefix=/usr/local
1723 test_prefix=$exec_prefix
1726 # If the loop below does not find an linker, then use whatever
1727 # one we can find in the users's path.
1729 if test "x$program_prefix" != xNONE; then
1730 gcc_cv_ld=${program_prefix}ld$host_exeext
1732 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1735 test_dirs="$test_prefix/lib/gcc-lib/$target_noncanonical/$gcc_version \
1736 $test_prefix/lib/gcc-lib/$target_noncanonical \
1737 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1738 /usr/lib/gcc/$target_noncanonical \
1739 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1740 $test_prefix/$target_noncanonical/bin"
1742 if test x$host = x$target; then
1743 test_dirs="$test_dirs \
1748 /bsd43/usr/lib/cmplrs/cc \
1749 /usr/cross64/usr/bin \
1750 /usr/lib/cmplrs/cc \
1751 /sysv/usr/lib/cmplrs/cc \
1752 /svr4/usr/lib/cmplrs/cc \
1756 for dir in $test_dirs; do
1757 if test -x $dir/ld$host_exeext; then
1758 gcc_cv_ld=$dir/ld$host_exeext
1765 AC_MSG_RESULT("newly built ld")
1768 AC_MSG_RESULT($gcc_cv_ld)
1772 # Figure out what nm we will be using.
1773 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1774 AC_MSG_CHECKING(what nm to use)
1776 if test -x nm$host_exeext; then
1777 gcc_cv_nm=./nm$host_exeext
1778 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1779 && test -f ../binutils/Makefile; then
1780 # Single tree build which includes binutils.
1782 gcc_cv_nm=./nm$host_exeext
1783 rm -f nm$host_exeext
1784 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1785 elif test "x$program_prefix" != xNONE; then
1786 gcc_cv_nm=${program_prefix}nm$host_exeext
1788 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1791 yes) AC_MSG_RESULT("newly built nm") ;;
1792 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1795 # Figure out what objdump we will be using.
1796 AC_MSG_CHECKING(what objdump to use)
1798 if test -x objdump$host_exeext; then
1799 gcc_cv_objdump=./objdump$host_exeext
1800 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1801 && test -f ../binutils/Makefile; then
1802 # Single tree build which includes binutils.
1804 gcc_cv_objdump=./objdump$host_exeext
1805 rm -f objdump$host_exeext
1806 $symbolic_link ../binutils/objdump$host_exeext \
1807 objdump$host_exeext 2>/dev/null
1808 elif test "x$program_prefix" != xNONE; then
1809 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1811 gcc_cv_objdump=`echo objdump | \
1812 sed ${program_transform_name}`$host_exeext
1814 case $in_tree_objdump in
1815 yes) AC_MSG_RESULT("newly built objdump") ;;
1816 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1819 # Figure out what assembler alignment features are present.
1820 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1824 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1825 [Define if your assembler supports .balign and .p2align.])])
1827 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1830 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1831 [Define if your assembler supports specifying the maximum number
1832 of bytes to skip when using the GAS .p2align command.])])
1834 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1836 [conftest_label1: .word 0
1838 conftest_label2: .word 0
1840 [if test x$gcc_cv_nm != x; then
1841 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1842 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1843 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1845 else gcc_cv_as_subsection_m1=yes
1847 rm -f conftest.nm1 conftest.nm2
1849 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1850 [Define if your assembler supports .subsection and .subsection -1 starts
1851 emitting at the beginning of your section.])])
1853 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1856 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1858 # .hidden needs to be supported in both the assembler and the linker,
1859 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1860 # This is irritatingly difficult to feature test for; we have to check the
1861 # date string after the version number. If we've got an in-tree
1862 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1864 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1865 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1870 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1871 [if test $in_tree_ld = yes ; then
1873 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1874 && test $in_tree_ld_is_elf = yes; then
1875 gcc_cv_ld_hidden=yes
1878 gcc_cv_ld_hidden=yes
1879 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1880 if echo "$ld_ver" | grep GNU > /dev/null; then
1882 ld_vers=`echo $ld_ver | sed -n \
1883 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1884 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1885 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1886 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1887 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1888 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1889 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1890 if test 0"$ld_date" -lt 20020404; then
1891 if test -n "$ld_date"; then
1892 # If there was date string, but was earlier than 2002-04-04, fail
1894 elif test -z "$ld_vers"; then
1895 # If there was no date string nor ld version number, something is wrong
1898 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1899 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1900 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1901 test -z "$ld_vers_patch" && ld_vers_patch=0
1902 if test "$ld_vers_major" -lt 2; then
1904 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1905 gcc_cv_ld_hidden="no"
1906 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1914 hppa64*-*-hpux* | ia64*-*-hpux*)
1915 gcc_cv_ld_hidden=yes
1923 libgcc_visibility=no
1924 AC_SUBST(libgcc_visibility)
1925 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1926 libgcc_visibility=yes
1927 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1928 [Define if your assembler and linker support .hidden.])
1931 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1932 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1940 [# GAS versions before 2.11 do not support uleb128,
1941 # despite appearing to.
1942 # ??? There exists an elf-specific test that will crash
1943 # the assembler. Perhaps it's better to figure out whether
1944 # arbitrary sections are supported and try the test.
1945 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
1946 if echo "$as_ver" | grep GNU > /dev/null; then
1948 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1949 as_major=`echo $as_ver | sed 's/\..*//'`
1950 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1952 if test $as_major -eq 2 && test $as_minor -lt 11
1954 else gcc_cv_as_leb128=yes
1957 [AC_DEFINE(HAVE_AS_LEB128, 1,
1958 [Define if your assembler supports .sleb128 and .uleb128.])])
1960 # GAS versions up to and including 2.11.0 may mis-optimize
1962 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1970 .section .eh_frame,"aw",@progbits
1972 .4byte .LECIE1-.LSCIE1
1986 .4byte .LEFDE1-.LASFDE1
1988 .4byte .LASFDE1-__FRAME_BEGIN__
1996 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
1997 cat > conftest.lit <<EOF
1998 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1999 0010 01000000 12000000 18000000 00000000 ................
2000 0020 08000000 04080000 0044 .........D @&t@
2002 cat > conftest.big <<EOF
2003 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2004 0010 00000001 00000012 00000018 00000000 ................
2005 0020 00000008 04000000 0844 .........D @&t@
2007 # If the assembler didn't choke, and we can objdump,
2008 # and we got the correct data, then succeed.
2009 if test x$gcc_cv_objdump != x \
2010 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2011 | tail -3 > conftest.got \
2012 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2013 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2015 gcc_cv_as_eh_frame=yes
2016 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2017 gcc_cv_as_eh_frame=buggy
2019 # Uh oh, what do we do now?
2020 gcc_cv_as_eh_frame=no
2023 if test $gcc_cv_as_eh_frame = buggy; then
2024 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2025 [Define if your assembler mis-optimizes .eh_frame data.])
2028 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2029 [elf,2,12,0], [--fatal-warnings],
2030 [.section .rodata.str, "aMS", @progbits, 1])
2031 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2032 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2033 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2035 # Thread-local storage - the check is heavily parametrized.
2044 .section ".tdata","awT",@progbits
2047 ldq $27,__tls_get_addr($29) !literal!1
2048 lda $16,foo($29) !tlsgd!1
2049 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2050 ldq $27,__tls_get_addr($29) !literal!2
2051 lda $16,foo($29) !tlsldm!2
2052 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2053 ldq $1,foo($29) !gotdtprel
2054 ldah $2,foo($29) !dtprelhi
2055 lda $3,foo($2) !dtprello
2056 lda $4,foo($29) !dtprel
2057 ldq $1,foo($29) !gottprel
2058 ldah $2,foo($29) !tprelhi
2059 lda $3,foo($2) !tprello
2060 lda $4,foo($29) !tprel'
2063 tls_as_opt=--fatal-warnings
2067 .section ".tdata","awT",@progbits
2071 leal foo@TLSGD(,%ebx,1), %eax
2072 leal foo@TLSLDM(%ebx), %eax
2073 leal foo@DTPOFF(%eax), %edx
2074 movl foo@GOTTPOFF(%ebx), %eax
2075 subl foo@GOTTPOFF(%ebx), %eax
2076 addl foo@GOTNTPOFF(%ebx), %eax
2077 movl foo@INDNTPOFF, %eax
2078 movl $foo@TPOFF, %eax
2079 subl $foo@TPOFF, %eax
2080 leal foo@NTPOFF(%ecx), %eax'
2083 tls_as_opt=--fatal-warnings
2087 .section ".tdata","awT",@progbits
2091 leaq foo@TLSGD(%rip), %rdi
2092 leaq foo@TLSLD(%rip), %rdi
2093 leaq foo@DTPOFF(%rax), %rdx
2094 movq foo@GOTTPOFF(%rip), %rax
2095 movq $foo@TPOFF, %rax'
2098 tls_as_opt=--fatal-warnings
2102 .section ".tdata","awT",@progbits
2105 addl r16 = @ltoff(@dtpmod(foo#)), gp
2106 addl r17 = @ltoff(@dtprel(foo#)), gp
2107 addl r18 = @ltoff(@tprel(foo#)), gp
2108 addl r19 = @dtprel(foo#), gp
2109 adds r21 = @dtprel(foo#), r13
2110 movl r23 = @dtprel(foo#)
2111 addl r20 = @tprel(foo#), gp
2112 adds r22 = @tprel(foo#), r13
2113 movl r24 = @tprel(foo#)'
2116 tls_as_opt=--fatal-warnings
2120 .section ".tdata","awT",@progbits
2128 addi 3,31,ld0@got@tlsgd
2130 addi 3,31,x1@got@tlsld
2133 addis 9,3,x2@dtprel@ha
2134 addi 9,9,x2@dtprel@l
2135 lwz 9,x3@got@tprel(31)
2138 addis 9,2,x2@tprel@ha
2139 addi 9,9,x2@tprel@l'
2142 tls_as_opt="-a32 --fatal-warnings"
2146 .section ".tdata","awT",@progbits
2154 addi 3,2,ld0@got@tlsgd
2160 addi 3,2,x1@got@tlsld
2166 addis 9,3,x2@dtprel@ha
2167 addi 9,9,x2@dtprel@l
2170 ld 9,x3@got@dtprel(2)
2176 tls_as_opt="-a64 --fatal-warnings"
2180 .section ".tdata","awT",@progbits
2189 l %r1,foo@GOTNTPOFF(%r12)
2190 l %r1,0(%r1):tls_load:foo
2191 bas %r14,0(%r1,%r13):tls_gdcall:foo
2192 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2195 tls_as_opt="-m31 --fatal-warnings"
2199 .section ".tdata","awT",@progbits
2207 lg %r1,foo@GOTNTPOFF(%r12)
2208 larl %r1,foo@INDNTPOFF
2209 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2210 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2213 tls_as_opt="-m64 -Aesame --fatal-warnings"
2215 sh-*-* | sh[34]-*-*)
2217 .section ".tdata","awT",@progbits
2227 tls_as_opt=--fatal-warnings
2231 sparc*-sun-solaris2.*)
2238 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2240 .section ".tdata",#alloc,#write,#tls
2243 sethi %tgd_hi22(foo), %o0
2244 add %o0, %tgd_lo10(foo), %o1
2245 add %l7, %o1, %o0, %tgd_add(foo)
2246 call __tls_get_addr, %tgd_call(foo)
2247 sethi %tldm_hi22(foo), %l1
2248 add %l1, %tldm_lo10(foo), %l2
2249 add %l7, %l2, %o0, %tldm_add(foo)
2250 call __tls_get_addr, %tldm_call(foo)
2251 sethi %tldo_hix22(foo), %l3
2252 xor %l3, %tldo_lox10(foo), %l4
2253 add %o0, %l4, %l5, %tldo_add(foo)
2254 sethi %tie_hi22(foo), %o3
2255 add %o3, %tie_lo10(foo), %o3
2256 ld [%l7 + %o3], %o2, %tie_ld(foo)
2257 add %g7, %o2, %o4, %tie_add(foo)
2258 sethi %tle_hix22(foo), %l1
2259 xor %l1, %tle_lox10(foo), %o5
2260 ld [%g7 + %o5], %o1'
2265 .section ".tdata","awT",@progbits
2268 sethi %tgd_hi22(foo), %o0
2269 add %o0, %tgd_lo10(foo), %o1
2270 add %l7, %o1, %o0, %tgd_add(foo)
2271 call __tls_get_addr, %tgd_call(foo)
2272 sethi %tldm_hi22(foo), %l1
2273 add %l1, %tldm_lo10(foo), %l2
2274 add %l7, %l2, %o0, %tldm_add(foo)
2275 call __tls_get_addr, %tldm_call(foo)
2276 sethi %tldo_hix22(foo), %l3
2277 xor %l3, %tldo_lox10(foo), %l4
2278 add %o0, %l4, %l5, %tldo_add(foo)
2279 sethi %tie_hi22(foo), %o3
2280 add %o3, %tie_lo10(foo), %o3
2281 ld [%l7 + %o3], %o2, %tie_ld(foo)
2282 add %g7, %o2, %o4, %tie_add(foo)
2283 sethi %tle_hix22(foo), %l1
2284 xor %l1, %tle_lox10(foo), %o5
2285 ld [%g7 + %o5], %o1'
2288 tls_as_opt="-32 --fatal-warnings"
2293 if test -z "$tls_first_major"; then
2294 : # If we don't have a check, assume no support.
2296 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2297 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2298 [AC_DEFINE(HAVE_AS_TLS, 1,
2299 [Define if your assembler supports thread-local storage.])])
2302 # Target-specific assembler checks.
2305 # All TARGET_ABI_OSF targets.
2306 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2307 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2308 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2311 extbl $3, $2, $3 !lituse_bytoff!1
2312 ldq $2, a($29) !literal!1
2313 ldq $4, b($29) !literal!2
2314 ldq_u $3, 0($2) !lituse_base!1
2315 ldq $27, f($29) !literal!5
2316 jsr $26, ($27), f !lituse_jsr!5
2317 ldah $29, 0($26) !gpdisp!3
2318 lda $0, c($29) !gprel
2319 ldah $1, d($29) !gprelhigh
2320 lda $1, d($1) !gprellow
2321 lda $29, 0($29) !gpdisp!3],,
2322 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2323 [Define if your assembler supports explicit relocations.])])
2327 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2328 [.register %g2, #scratch],,
2329 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2330 [Define if your assembler supports .register.])])
2332 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2334 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2335 [Define if your assembler supports -relax option.])])
2337 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2338 gcc_cv_as_sparc_ua_pcrel,,
2346 .uaword %r_disp32(foo)],
2347 [if test x$gcc_cv_ld != x \
2348 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2349 gcc_cv_as_sparc_ua_pcrel=yes
2352 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2353 [Define if your assembler and linker support unaligned PC relative relocs.])
2355 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2356 gcc_cv_as_sparc_ua_pcrel_hidden,,
2361 .uaword %r_disp32(foo)
2362 .byte 0x32, 0x33, 0x34
2367 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2368 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2369 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2370 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2371 if $gcc_cv_objdump -R conftest 2> /dev/null \
2372 | grep 'DISP32' > /dev/null 2>&1; then
2375 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2379 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2380 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2381 ]) # unaligned pcrel relocs
2383 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2384 gcc_cv_as_sparc_offsetable_lo10,,
2387 or %g1, %lo(ab) + 12, %g1
2388 or %g1, %lo(ab + 12), %g1],
2389 [if test x$gcc_cv_objdump != x \
2390 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2391 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2392 gcc_cv_as_offsetable_lo10=yes
2394 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2395 [Define if your assembler supports offsetable %lo().])])
2399 i[34567]86-*-* | x86_64-*-*)
2401 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2402 gcc_cv_as_ix86_filds_fists,
2403 [2,9,0],, [filds mem; fists mem],,
2404 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2405 [Define if your assembler uses the new HImode fild and fist notation.])])
2407 gcc_GAS_CHECK_FEATURE([cmov syntax],
2408 gcc_cv_as_ix86_cmov_sun_syntax,,,
2409 [cmovl.l %edx, %eax],,
2410 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2411 [Define if your assembler supports the Sun syntax for cmov.])])
2413 # This one is used unconditionally by i386.[ch]; it is to be defined
2414 # to 1 if the feature is present, 0 otherwise.
2415 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2416 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2422 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2423 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2424 [Define true if the assembler supports '.long foo@GOTOFF'.])
2428 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2429 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2431 addl r15 = @ltoffx(x#), gp
2433 ld8.mov r16 = [[r15]], x#],,
2434 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2435 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2441 *-*-aix*) conftest_s=' .csect .text[[PR]]
2443 *-*-darwin*) conftest_s=' .text
2445 *) conftest_s=' .text
2449 gcc_GAS_CHECK_FEATURE([mfcr field support],
2450 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2452 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2453 [Define if your assembler supports mfcr field.])])
2457 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2458 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2459 [ lw $4,%gp_rel(foo)($4)],,
2460 [if test x$target_cpu_default = x
2461 then target_cpu_default=MASK_EXPLICIT_RELOCS
2462 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2467 # ??? Not all targets support dwarf2 debug_line, even within a version
2468 # of gas. Moreover, we need to emit a valid instruction to trigger any
2469 # info to the output file. So, as supported targets are added to gas 2.11,
2470 # add some instruction here to (also) show we expect this might work.
2471 # ??? Once 2.11 is released, probably need to add first known working
2472 # version to the per-target configury.
2474 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2475 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2476 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2479 ia64*-*-* | s390*-*-*)
2486 if test x"$insn" != x; then
2488 .file 1 \"conftest.s\"
2491 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2492 gcc_cv_as_dwarf2_debug_line,
2493 [elf,2,11,0],, [$conftest_s],
2494 [# ??? This fails with non-gnu grep. Maybe use objdump?
2495 if grep debug_line conftest.o > /dev/null 2>&1; then
2496 gcc_cv_as_dwarf2_debug_line=yes
2499 # The .debug_line file table must be in the exact order that
2500 # we specified the files, since these indices are also used
2501 # by DW_AT_decl_file. Approximate this test by testing if
2502 # the assembler bitches if the same index is assigned twice.
2503 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2504 gcc_cv_as_dwarf2_file_buggy,,,
2508 if test $gcc_cv_as_dwarf2_debug_line = yes \
2509 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2510 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2511 [Define if your assembler supports dwarf2 .file/.loc directives,
2512 and preserves file table indices exactly as given.])
2515 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2516 gcc_cv_as_gdwarf2_flag,
2517 [elf,2,11,0], [--gdwarf2], [$insn],,
2518 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2519 [Define if your assembler supports the --gdwarf2 option.])])
2521 gcc_GAS_CHECK_FEATURE([--gstabs option],
2522 gcc_cv_as_gstabs_flag,
2523 [elf,2,11,0], [--gstabs], [$insn],
2524 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2525 # and warns about it, but still exits successfully. So check for
2527 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2529 else gcc_cv_as_gstabs_flag=yes
2531 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2532 [Define if your assembler supports the --gstabs option.])])
2535 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2536 gcc_cv_ld_ro_rw_mix=unknown
2537 if test $in_tree_ld = yes ; then
2538 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2539 && test $in_tree_ld_is_elf = yes; then
2540 gcc_cv_ld_ro_rw_mix=read-write
2542 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2543 echo '.section myfoosect, "a"' > conftest1.s
2544 echo '.section myfoosect, "aw"' > conftest2.s
2545 echo '.byte 1' >> conftest2.s
2546 echo '.section myfoosect, "a"' > conftest3.s
2547 echo '.byte 0' >> conftest3.s
2548 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2549 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2550 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2551 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2552 conftest2.o conftest3.o > /dev/null 2>&1; then
2553 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2554 | sed -e '/myfoosect/!d' -e N`
2555 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2556 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2557 gcc_cv_ld_ro_rw_mix=read-only
2559 gcc_cv_ld_ro_rw_mix=read-write
2564 rm -f conftest.* conftest[123].*
2567 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2568 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2569 [Define if your linker links a mix of read-only
2570 and read-write sections into a read-write section.])
2572 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2574 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2575 gcc_cv_ld_eh_frame_hdr=no
2576 if test $in_tree_ld = yes ; then
2577 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2578 && test $in_tree_ld_is_elf = yes; then
2579 gcc_cv_ld_eh_frame_hdr=yes
2581 elif test x$gcc_cv_ld != x; then
2582 # Check if linker supports --eh-frame-hdr option
2583 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2584 gcc_cv_ld_eh_frame_hdr=yes
2587 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2588 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2589 [Define if your linker supports --eh-frame-hdr option.])
2591 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2593 AC_MSG_CHECKING(linker position independent executable support)
2595 if test $in_tree_ld = yes ; then
2596 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2597 && test $in_tree_ld_is_elf = yes; then
2600 elif test x$gcc_cv_ld != x; then
2601 # Check if linker supports -pie option
2602 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2606 if test x"$gcc_cv_ld_pie" = xyes; then
2607 AC_DEFINE(HAVE_LD_PIE, 1,
2608 [Define if your linker supports -pie option.])
2610 AC_MSG_RESULT($gcc_cv_ld_pie)
2612 if test x$with_sysroot = x && test x$host = x$target \
2613 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2614 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2615 [Define to PREFIX/include if cpp should also search that directory.])
2618 # Figure out what language subdirectories are present.
2619 # Look if the user specified --enable-languages="..."; if not, use
2620 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2622 # NB: embedded tabs in this IF block -- do not untabify
2623 if test x"${enable_languages+set}" != xset; then
2624 if test x"${LANGUAGES+set}" = xset; then
2625 enable_languages="${LANGUAGES}"
2626 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2629 enable_languages=all
2632 if test x"${enable_languages}" = x \
2633 || test x"${enable_languages}" = xyes;
2635 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2638 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2640 # First scan to see if an enabled language requires some other language.
2641 # We assume that a given config-lang.in will list all the language
2642 # front ends it requires, even if some are required indirectly.
2643 for lang in ${srcdir}/*/config-lang.in
2646 # The odd quoting in the next line works around
2647 # an apparent bug in bash 1.12 on linux.
2649 ${srcdir}/[*]/config-lang.in)
2652 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2653 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2654 for other in $this_lang_requires
2656 case ,${enable_languages}, in
2662 enable_languages="$enable_languages,$other"
2671 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2674 for lang in ${srcdir}/*/config-lang.in
2677 # The odd quoting in the next line works around
2678 # an apparent bug in bash 1.12 on linux.
2680 ${srcdir}/[*]/config-lang.in) ;;
2682 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2683 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2684 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2685 if test "x$lang_alias" = x
2687 echo "$lang doesn't set \$language." 1>&2
2690 case ${build_by_default},${enable_languages}, in
2691 *,$lang_alias,*) add_this_lang=yes ;;
2692 no,*) add_this_lang=no ;;
2693 *,all,*) add_this_lang=yes ;;
2694 *) add_this_lang=no ;;
2696 found_languages="${found_languages} ${lang_alias}"
2697 if test x"${add_this_lang}" = xyes; then
2699 ${srcdir}/ada/config-lang.in)
2700 if test x$have_gnat = xyes ; then
2701 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2705 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2715 for expected_language in ${expected_languages} ..
2717 if test "${expected_language}" != ..; then
2718 missing_language="${expected_language}"
2719 if test "${expected_language}" = "c" \
2720 || test "${expected_language}" = "all"; then
2723 for found_language in ${found_languages} ..
2725 if test "${found_language}" != ..; then
2726 if test "${expected_language}" = "${found_language}"; then
2731 if test "x${missing_language}" != x; then
2732 missing_languages="${missing_languages} ${missing_language}"
2737 if test "x$missing_languages" != x; then
2739 The following requested languages were not found:${missing_languages}
2740 The following languages were available: c${found_languages}])
2743 # Make gthr-default.h if we have a thread file.
2745 if test $thread_file != single; then
2746 rm -f gthr-default.h
2747 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2748 gthread_flags=-DHAVE_GTHR_DEFAULT
2750 AC_SUBST(gthread_flags)
2752 # Find out what GC implementation we want, or may, use.
2754 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2761 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2766 echo "Using $GGC for garbage collection."
2768 # Use the system's zlib library.
2770 zlibinc="-I\$(srcdir)/../zlib"
2771 AC_ARG_WITH(system-zlib,
2772 [ --with-system-zlib use installed libz],
2779 dnl Very limited version of automake's enable-maintainer-mode
2781 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2782 dnl maintainer-mode is disabled by default
2783 AC_ARG_ENABLE(maintainer-mode,
2784 [ --enable-maintainer-mode
2785 enable make rules and dependencies not useful
2786 (and sometimes confusing) to the casual installer],
2787 maintainer_mode=$enableval,
2790 AC_MSG_RESULT($maintainer_mode)
2792 if test "$maintainer_mode" = "yes"; then
2799 # Make empty files to contain the specs and options for each language.
2800 # Then add #include lines to for a compiler that has specs and/or options.
2805 for subdir in . $subdirs
2807 if test -f $srcdir/$subdir/lang.opt; then
2808 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2810 if test -f $srcdir/$subdir/lang-specs.h; then
2811 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2813 if test -f $srcdir/$subdir/$subdir-tree.def; then
2814 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2818 # These (without "all_") are set in each config-lang.in.
2819 # `language' must be a single word so is spelled singularly.
2824 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2825 # List of language makefile fragments.
2827 # List of language subdirectory makefiles. Deprecated.
2829 # Files for gengtype
2830 all_gtfiles="$target_gtfiles"
2831 # Files for gengtype with language
2832 all_gtfiles_files_langs=
2833 all_gtfiles_files_files=
2835 # Add the language fragments.
2836 # Languages are added via two mechanisms. Some information must be
2837 # recorded in makefile variables, these are defined in config-lang.in.
2838 # We accumulate them and plug them into the main Makefile.
2839 # The other mechanism is a set of hooks for each of the main targets
2840 # like `clean', `install', etc.
2842 language_hooks="Make-hooks"
2852 . ${srcdir}/$s/config-lang.in
2853 if test "x$language" = x
2855 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2858 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2859 if test -f ${srcdir}/$s/Makefile.in
2860 then all_lang_makefiles="$s/Makefile"
2862 all_languages="$all_languages $language"
2863 if test "x$boot_language" = xyes
2865 all_boot_languages="$all_boot_languages $language"
2867 all_compilers="$all_compilers $compilers"
2868 all_stagestuff="$all_stagestuff $stagestuff"
2869 all_outputs="$all_outputs $outputs"
2870 all_gtfiles="$all_gtfiles $gtfiles"
2873 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2874 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2878 # Pick up gtfiles for c
2881 . ${srcdir}/c-config-lang.in
2882 all_gtfiles="$all_gtfiles $gtfiles"
2885 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2886 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2890 for language in $all_languages
2892 check_languages="$check_languages check-$language"
2895 # We link each language in with a set of hooks, reached indirectly via
2900 target_list="all.build all.cross start.encap rest.encap tags \
2901 install-normal install-common install-man \
2902 uninstall info man srcextra srcman srcinfo \
2903 mostlyclean clean distclean maintainer-clean \
2904 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2905 for t in $target_list
2908 for lang in $all_languages
2912 echo "lang.$t: $x" >> Make-hooks
2917 echo "dir ." > .gdbinit
2918 echo "dir ${srcdir}" >> .gdbinit
2919 if test x$gdb_needs_out_file_path = xyes
2921 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2923 if test "x$subdirs" != x; then
2926 echo "dir ${srcdir}/$s" >> .gdbinit
2929 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2931 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2932 # absolute path for gcc_tooldir based on inserting the number of up-directory
2933 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2934 # $(libsubdir)/@(unlibsubdir) based path.
2935 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2936 # make and thus we'd get different behavior depending on where we built the
2938 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2939 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
2941 changequote(<<, >>)dnl
2942 # An explanation of the sed strings:
2943 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2944 # -e 's|/$||' match a trailing forward slash and eliminates it
2945 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2946 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2948 # (*) Note this pattern overwrites the first character of the string
2949 # with a forward slash if one is not already present. This is not a
2950 # problem because the exact names of the sub-directories concerned is
2951 # unimportant, just the number of them matters.
2953 # The practical upshot of these patterns is like this:
2955 # prefix exec_prefix result
2956 # ------ ----------- ------
2958 # /foo/ /foo/bar ../
2959 # /foo /foo/bar/ ../
2960 # /foo/ /foo/bar/ ../
2961 # /foo /foo/bar/ugg ../../
2964 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
2965 changequote([, ])dnl
2967 AC_SUBST(gcc_tooldir)
2970 # Find a directory in which to install a shared libgcc.
2972 AC_ARG_ENABLE(version-specific-runtime-libs,
2973 [ --enable-version-specific-runtime-libs
2974 specify that runtime libraries should be
2975 installed in a compiler-specific directory])
2977 AC_ARG_WITH(slibdir,
2978 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2979 slibdir="$with_slibdir",
2980 if test "${enable_version_specific_runtime_libs+set}" = set; then
2981 slibdir='$(libsubdir)'
2982 elif test "$host" != "$target"; then
2983 slibdir='$(build_tooldir)/lib'
2989 objdir=`${PWDCMD-pwd}`
2992 # Substitute configuration variables
2995 AC_SUBST(all_boot_languages)
2996 AC_SUBST(all_compilers)
2997 AC_SUBST(all_gtfiles)
2998 AC_SUBST(all_gtfiles_files_langs)
2999 AC_SUBST(all_gtfiles_files_files)
3000 AC_SUBST(all_lang_makefrags)
3001 AC_SUBST(all_lang_makefiles)
3002 AC_SUBST(all_languages)
3003 AC_SUBST(all_stagestuff)
3004 AC_SUBST(build_exeext)
3005 AC_SUBST(build_install_headers_dir)
3006 AC_SUBST(build_xm_file_list)
3007 AC_SUBST(build_xm_include_list)
3008 AC_SUBST(build_xm_defines)
3009 AC_SUBST(check_languages)
3010 AC_SUBST(cc_set_by_configure)
3011 AC_SUBST(quoted_cc_set_by_configure)
3012 AC_SUBST(cpp_install_dir)
3013 AC_SUBST(xmake_file)
3014 AC_SUBST(tmake_file)
3015 AC_SUBST(extra_headers_list)
3016 AC_SUBST(extra_objs)
3017 AC_SUBST(extra_parts)
3018 AC_SUBST(extra_passes)
3019 AC_SUBST(extra_programs)
3020 AC_SUBST(float_h_file)
3021 AC_SUBST(gcc_config_arguments)
3022 AC_SUBST(gcc_gxx_include_dir)
3023 AC_SUBST(libstdcxx_incdir)
3024 AC_SUBST(gcc_version)
3025 AC_SUBST(gcc_version_full)
3026 AC_SUBST(gcc_version_trigger)
3027 AC_SUBST(host_exeext)
3028 AC_SUBST(host_extra_gcc_objs)
3029 AC_SUBST(host_xm_file_list)
3030 AC_SUBST(host_xm_include_list)
3031 AC_SUBST(host_xm_defines)
3032 AC_SUBST(out_host_hook_obj)
3034 AC_SUBST(lang_opt_files)
3035 AC_SUBST(lang_specs_files)
3036 AC_SUBST(lang_tree_files)
3037 AC_SUBST(local_prefix)
3039 AC_SUBST(objc_boehm_gc)
3041 AC_SUBST(out_object_file)
3042 AC_SUBST(stage_prefix_set_by_configure)
3043 AC_SUBST(quoted_stage_prefix_set_by_configure)
3044 AC_SUBST(symbolic_link)
3045 AC_SUBST(thread_file)
3046 AC_SUBST(tm_file_list)
3047 AC_SUBST(tm_include_list)
3048 AC_SUBST(tm_defines)
3049 AC_SUBST(tm_p_file_list)
3050 AC_SUBST(tm_p_include_list)
3051 AC_SUBST(xm_file_list)
3052 AC_SUBST(xm_include_list)
3053 AC_SUBST(xm_defines)
3054 AC_SUBST(target_noncanonical)
3055 AC_SUBST(c_target_objs)
3056 AC_SUBST(cxx_target_objs)
3057 AC_SUBST(target_cpu_default)
3059 AC_SUBST_FILE(language_hooks)
3061 # If it doesn't already exist, create document directory
3062 echo "checking for the document directory." 1>&2
3063 if test -d doc ; then
3070 if test x${build} = x${host} ; then
3071 if test x${host} = x${target} ; then
3072 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3074 echo "Links are now set up to build a cross-compiler" 1>&2
3075 echo " from ${host} to ${target}." 1>&2
3078 if test x${host} = x${target} ; then
3079 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3080 echo " for ${target}." 1>&2
3082 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3083 echo " from ${host} to ${target}." 1>&2
3087 # Configure the subdirectories
3088 # AC_CONFIG_SUBDIRS($subdirs)
3090 # Create the Makefile
3091 # and configure language subdirectories
3092 AC_CONFIG_FILES($all_outputs)
3094 AC_CONFIG_COMMANDS([default],
3096 case ${CONFIG_HEADERS} in
3097 *auto-host.h:config.in*)
3100 # Make sure all the subdirs exist.
3103 test -d $d || mkdir $d
3105 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3106 # bootstrapping and the installation procedure can still use
3107 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3108 # FLAGS_TO_PASS has been modified to solve the problem there.
3109 # This is virtually a duplicate of what happens in configure.lang; we do
3110 # an extra check to make sure this only happens if ln -s can be used.
3111 if test "$symbolic_link" = "ln -s"; then
3112 for d in ${subdirs} fixinc ; do
3113 STARTDIR=`${PWDCMD-pwd}`
3115 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3118 $symbolic_link ../$t $t 2>/dev/null
3125 symbolic_link='$symbolic_link'