2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003
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_HEADER(auto-host.h:config.in)
32 # Determine the host, build, and target systems
35 # Determine the target- and build-specific subdirectories
38 # Set program_transform_name
41 # Check for bogus environment variables.
42 # Test if LIBRARY_PATH contains the notation for the current directory
43 # since this would lead to problems installing/building glibc.
44 # LIBRARY_PATH contains the current directory if one of the following
46 # - one of the terminals (":" and ";") is the first or last sign
47 # - two terminals occur directly after each other
48 # - the path contains an element with a dot in it
49 AC_MSG_CHECKING(LIBRARY_PATH variable)
51 case ${LIBRARY_PATH} in
52 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
53 library_path_setting="contains current directory"
56 library_path_setting="ok"
60 AC_MSG_RESULT($library_path_setting)
61 if test "$library_path_setting" != "ok"; then
63 *** LIBRARY_PATH shouldn't contain the current directory when
64 *** building gcc. Please change the environment variable
65 *** and run configure again.])
68 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
69 # since this would lead to problems installing/building glibc.
70 # GCC_EXEC_PREFIX contains the current directory if one of the following
72 # - one of the terminals (":" and ";") is the first or last sign
73 # - two terminals occur directly after each other
74 # - the path contains an element with a dot in it
75 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
77 case ${GCC_EXEC_PREFIX} in
78 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
79 gcc_exec_prefix_setting="contains current directory"
82 gcc_exec_prefix_setting="ok"
86 AC_MSG_RESULT($gcc_exec_prefix_setting)
87 if test "$gcc_exec_prefix_setting" != "ok"; then
89 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
90 *** building gcc. Please change the environment variable
91 *** and run configure again.])
98 # Specify the local prefix
100 AC_ARG_WITH(local-prefix,
101 [ --with-local-prefix=DIR specifies directory to put local include],
102 [case "${withval}" in
103 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
105 *) local_prefix=$with_local_prefix ;;
108 # Default local prefix if it is empty
109 if test x$local_prefix = x; then
110 local_prefix=/usr/local
113 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
114 # passed in by the toplevel make and thus we'd get different behavior
115 # depending on where we built the sources.
117 # Specify the g++ header file directory
118 AC_ARG_WITH(gxx-include-dir,
119 [ --with-gxx-include-dir=DIR
120 specifies directory to put g++ header files],
121 [case "${withval}" in
122 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
124 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
127 if test x${gcc_gxx_include_dir} = x; then
128 if test x${enable_version_specific_runtime_libs} = xyes; then
129 gcc_gxx_include_dir='${libsubdir}/include/c++'
131 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
132 changequote(<<, >>)dnl
133 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
138 AC_ARG_WITH(cpp_install_dir,
139 [ --with-cpp-install-dir=DIR
140 install the user visible C preprocessor in DIR
141 (relative to PREFIX) as well as PREFIX/bin],
142 [if test x$withval = xyes; then
143 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
144 elif test x$withval != xno; then
145 cpp_install_dir=$withval
148 # -------------------
149 # Find default linker
150 # -------------------
154 [ --with-gnu-ld arrange to work with GNU ld.],
155 gnu_ld_flag="$with_gnu_ld",
158 # With pre-defined ld
160 [ --with-ld arrange to use the specified ld (full pathname)],
161 DEFAULT_LINKER="$with_ld")
162 if test x"${DEFAULT_LINKER+set}" = x"set"; then
163 if test ! -x "$DEFAULT_LINKER"; then
164 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
165 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
168 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
169 [Define to enable the use of a default linker.])
172 AC_MSG_CHECKING([whether a default linker was specified])
173 if test x"${DEFAULT_LINKER+set}" = x"set"; then
174 if test x"$gnu_ld_flag" = x"no"; then
175 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
177 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
183 # ----------------------
184 # Find default assembler
185 # ----------------------
189 [ --with-gnu-as arrange to work with GNU as],
190 gas_flag="$with_gnu_as",
194 [ --with-as arrange to use the specified as (full pathname)],
195 DEFAULT_ASSEMBLER="$with_as")
196 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
197 if test ! -x "$DEFAULT_ASSEMBLER"; then
198 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
199 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
202 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
203 [Define to enable the use of a default assembler.])
206 AC_MSG_CHECKING([whether a default assembler was specified])
207 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
208 if test x"$gas_flag" = x"no"; then
209 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
211 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
221 # Find the native compiler
224 # autoconf is lame and doesn't give us any substitution variable for this.
225 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
226 NO_MINUS_C_MINUS_O=yes
228 OUTPUT_OPTION='-o $@'
230 AC_SUBST(NO_MINUS_C_MINUS_O)
231 AC_SUBST(OUTPUT_OPTION)
233 # -------------------------
234 # Check C compiler features
235 # -------------------------
237 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
238 ac_cv_prog_cc_no_long_long,
239 [save_CFLAGS="$CFLAGS"
240 CFLAGS="-Wno-long-long"
241 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
242 ac_cv_prog_cc_no_long_long=no)
243 CFLAGS="$save_CFLAGS"])
251 # sizeof(char) is 1 by definition.
252 AC_COMPILE_CHECK_SIZEOF(void *)
253 AC_COMPILE_CHECK_SIZEOF(short)
254 AC_COMPILE_CHECK_SIZEOF(int)
255 AC_COMPILE_CHECK_SIZEOF(long)
256 if test $ac_cv_c_long_long = yes; then
257 AC_COMPILE_CHECK_SIZEOF(long long)
259 if test $ac_cv_c___int64 = yes; then
260 AC_COMPILE_CHECK_SIZEOF(__int64)
267 # See if GNAT has been installed
270 if test x$have_gnat != xno ; then
271 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
272 ac_cv_prog_adac_no_long_long,
273 [cat >conftest.adb <<EOF
274 procedure conftest is begin null; end conftest;
276 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
277 ac_cv_prog_adac_no_long_long=yes
279 ac_cv_prog_adac_no_long_long=no
283 ac_cv_prog_adac_no_long_long=yes
286 # ---------------------
287 # Warnings and checking
288 # ---------------------
291 if test $ac_cv_prog_cc_no_long_long = yes && \
292 test $ac_cv_prog_adac_no_long_long = yes ; then
293 strict1_warn="-pedantic -Wno-long-long"
295 AC_SUBST(strict1_warn)
297 # If the native compiler is GCC, we can enable warnings even in stage1.
298 # That's useful for people building cross-compilers, or just running a
301 if test "x$GCC" = "xyes"; then
302 warn_cflags='$(GCC_WARN_CFLAGS)'
304 AC_SUBST(warn_cflags)
306 # Enable -Werror in bootstrap stage2 and later.
307 # Change the default to "no" on release branches.
308 AC_ARG_ENABLE(werror,
309 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
311 if test x$enable_werror = xyes ; then
316 # Enable expensive internal checks
317 AC_ARG_ENABLE(checking,
318 [ --enable-checking[=LIST]
319 enable expensive run-time checks. With LIST,
320 enable only specific categories of checks.
321 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
322 default is misc,tree,gc,rtlflag],
328 ac_gc_always_collect=
329 case "${enableval}" in
330 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
331 ac_rtlflag_checking=1 ;;
333 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
334 set fnord $enableval; shift
339 misc) ac_checking=1 ;;
340 tree) ac_tree_checking=1 ;;
341 rtlflag) ac_rtlflag_checking=1 ;;
342 rtl) ac_rtl_checking=1 ;;
343 gc) ac_gc_checking=1 ;;
344 gcac) ac_gc_always_collect=1 ;;
345 valgrind) ac_checking_valgrind=1 ;;
346 *) AC_MSG_ERROR(unknown check category $check) ;;
352 # Enable some checks by default for development versions of GCC
353 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
355 if test x$ac_checking != x ; then
356 AC_DEFINE(ENABLE_CHECKING, 1,
357 [Define if you want more run-time sanity checks. This one gets a grab
358 bag of miscellaneous but relatively cheap checks.])
359 nocommon_flag=-fno-common
361 AC_SUBST(nocommon_flag)
362 if test x$ac_tree_checking != x ; then
363 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
364 [Define if you want all operations on trees (the basic data
365 structure of the front ends) to be checked for dynamic type safety
366 at runtime. This is moderately expensive.])
368 if test x$ac_rtl_checking != x ; then
369 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
370 [Define if you want all operations on RTL (the basic data structure
371 of the optimizer and back end) to be checked for dynamic type safety
372 at runtime. This is quite expensive.])
374 if test x$ac_rtlflag_checking != x ; then
375 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
376 [Define if you want RTL flag accesses to be checked against the RTL
377 codes that are supported for each access macro. This is relatively
380 if test x$ac_gc_checking != x ; then
381 AC_DEFINE(ENABLE_GC_CHECKING, 1,
382 [Define if you want the garbage collector to do object poisoning and
383 other memory allocation checks. This is quite expensive.])
385 if test x$ac_gc_always_collect != x ; then
386 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
387 [Define if you want the garbage collector to operate in maximally
388 paranoid mode, validating the entire heap and collecting garbage at
389 every opportunity. This is extremely expensive.])
391 valgrind_path_defines=
393 if test x$ac_checking_valgrind != x ; then
394 # It is certainly possible that there's valgrind but no valgrind.h.
395 # GCC relies on making annotations so we must have both.
396 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
398 [#include <memcheck.h>
399 #ifndef VALGRIND_DISCARD
400 #error VALGRIND_DISCARD not defined
402 [gcc_cv_header_memcheck_h=yes],
403 gcc_cv_header_memcheck_h=no)
404 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
405 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
406 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
407 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
408 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
409 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
411 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
412 valgrind_command="$valgrind_path -q"
413 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
414 [Define if you want to run subprograms and generated programs
415 through valgrind (a memory checker). This is extremely expensive.])
416 if test $gcc_cv_header_memcheck_h = yes; then
417 AC_DEFINE(HAVE_MEMCHECK_H, 1,
418 [Define if valgrind's memcheck.h header is installed.])
421 AC_SUBST(valgrind_path_defines)
422 AC_SUBST(valgrind_command)
424 # Enable code coverage collection
425 AC_ARG_ENABLE(coverage,
426 [ --enable-coverage[=LEVEL]
427 enable compiler\'s code coverage collection.
428 Use to measure compiler performance and locate
429 unused parts of the compiler. With LEVEL, specify
430 optimization. Values are opt, noopt,
432 [case "${enableval}" in
434 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
437 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
440 AC_MSG_ERROR(unknown coverage setting $enableval)
444 AC_SUBST(coverage_flags)
446 # -------------------------------
447 # Miscenalleous configure options
448 # -------------------------------
452 [ --with-stabs arrange to use stabs instead of host debug format],
458 [ --with-elf arrange to use ELF instead of host debug format],
462 # Determine whether or not multilibs are enabled.
463 AC_ARG_ENABLE(multilib,
464 [ --enable-multilib enable library support for multiple ABIs],
465 [], [enable_multilib=yes])
466 AC_SUBST(enable_multilib)
468 # Enable __cxa_atexit for C++.
469 AC_ARG_ENABLE(__cxa_atexit,
470 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
474 # Pass with no value to take the default
475 # Pass with a value to specify a thread package
476 AC_ARG_ENABLE(threads,
477 [ --enable-threads enable thread usage for target GCC
478 --enable-threads=LIB use LIB thread package for target GCC],,
481 enable_threads_flag=$enable_threads
482 # Check if a valid thread package
483 case x${enable_threads_flag} in
486 target_thread_file='single'
490 target_thread_file=''
492 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
493 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
494 target_thread_file=$enable_threads_flag
497 echo "$enable_threads is an unknown thread package" 1>&2
502 AC_ARG_ENABLE(objc-gc,
503 [ --enable-objc-gc enable the use of Boehm's garbage collector with
504 the GNU Objective-C runtime],
505 if test x$enable_objc_gc = xno; then
513 [ --with-dwarf2 force the default debug format to be DWARF 2],
514 dwarf2="$with_dwarf2",
517 AC_ARG_ENABLE(shared,
518 [ --disable-shared don't provide a shared libgcc],
520 case $enable_shared in
524 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
525 for pkg in $enableval; do
526 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
533 ], [enable_shared=yes])
534 AC_SUBST(enable_shared)
537 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
539 case ${with_sysroot} in
540 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
541 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
544 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
545 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
547 if test "x$exec_prefix" = xNONE; then
548 if test "x$prefix" = xNONE; then
549 test_prefix=/usr/local
554 test_prefix=$exec_prefix
556 case ${TARGET_SYSTEM_ROOT} in
557 "${test_prefix}"|"${test_prefix}/"*|\
558 '${exec_prefix}'|'${exec_prefix}/'*)
559 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
560 TARGET_SYSTEM_ROOT_DEFINE="$t"
565 TARGET_SYSTEM_ROOT_DEFINE=
566 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
568 AC_SUBST(TARGET_SYSTEM_ROOT)
569 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
570 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
572 # Build with intermodule optimisations
573 AC_ARG_ENABLE(intermodule,
574 [ --enable-intermodule build the compiler in one step],
575 [case "${enable_intermodule}" in
576 yes) onestep=-onestep : ;;
581 # -------------------------
582 # Checks for other programs
583 # -------------------------
587 # Find some useful tools
594 # See if we have the mktemp command.
595 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
597 # Do we have a single-tree copy of texinfo?
598 if test -f $srcdir/../texinfo/Makefile.in; then
599 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
600 gcc_cv_prog_makeinfo_modern=yes
601 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
603 # See if makeinfo has been installed and is modern enough
604 # that we can use it.
605 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
606 [GNU texinfo.* \([0-9][0-9.]*\)],
610 if test $gcc_cv_prog_makeinfo_modern = no; then
612 *** Makeinfo is missing or too old.
613 *** Info documentation will not be built.])
616 BUILD_INFO=info AC_SUBST(BUILD_INFO)
619 # Is pod2man recent enough to regenerate manpages?
620 AC_MSG_CHECKING([for recent Pod::Man])
621 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
623 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
629 # 'make compare' can be significantly faster, if cmp itself can
630 # skip bytes instead of using tail. The test being performed is
631 # "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
632 # but we need to sink errors and handle broken shells.
633 AC_CACHE_CHECK([for cmp's capabilities], gcc_cv_prog_cmp_skip,
636 if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
637 if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
638 make_compare_target=slowcompare
640 make_compare_target=gnucompare
643 make_compare_target=slowcompare
646 gcc_cv_prog_cmp_skip=$make_compare_target
648 AC_SUBST(make_compare_target)
651 dnl Don't use AC_PROG_LEX; we insist on flex.
652 dnl LEXLIB is not useful in gcc.
653 if test -f $srcdir/../flex/skel.c; then
654 FLEX='$(objdir)/../flex/flex'
656 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
660 # The -L switch is so bison can find its skeleton file.
661 if test -f $srcdir/../bison/bison.simple; then
662 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
664 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
667 # --------------------
668 # Checks for C headers
669 # --------------------
671 AC_MSG_CHECKING(for GNU C library)
672 AC_CACHE_VAL(gcc_cv_glibc,
674 [#include <features.h>],[
675 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
676 #error Not a GNU C library system
680 AC_MSG_RESULT($gcc_cv_glibc)
681 if test $gcc_cv_glibc = yes; then
682 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
687 gcc_AC_HEADER_STDBOOL
690 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
691 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
692 sys/resource.h sys/param.h sys/times.h sys/stat.h \
693 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
695 # Check for thread headers.
696 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
697 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
699 # These tests can't be done till we know if we have limits.h.
707 # Stage specific cflags for build.
713 stage1_cflags="-Wa,-J"
719 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
720 # sources; use -no-cpp-precomp to get to GNU cpp.
721 # Apple's GCC has bugs in designated initializer handling, so disable
723 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
726 AC_SUBST(stage1_cflags)
728 # These libraries may be used by collect2.
729 # We may need a special search path to get them linked.
730 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
732 for libs in '' -lld -lmld \
733 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
734 '-L/usr/lib/cmplrs/cc3.11 -lmld'
737 AC_TRY_LINK_FUNC(ldopen,
738 [gcc_cv_collect2_libs="$libs"; break])
741 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
742 case $gcc_cv_collect2_libs in
744 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
746 AC_SUBST(COLLECT2_LIBS)
748 # When building Ada code on Alpha, we need exc_resume which is usually in
749 # -lexc. So test for it.
752 AC_SEARCH_LIBS(exc_resume, exc)
755 AC_SUBST(GNAT_LIBEXC)
757 # Some systems put ldexp and frexp in libm instead of libc; assume
758 # they're both in the same place. jcf-dump needs them.
761 AC_SEARCH_LIBS(ldexp, m)
766 # Use <inttypes.h> only if it exists,
767 # doesn't clash with <sys/types.h>, and declares intmax_t.
768 AC_MSG_CHECKING(for inttypes.h)
769 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
771 [#include <sys/types.h>
772 #include <inttypes.h>],
774 [gcc_cv_header_inttypes_h=yes],
775 gcc_cv_header_inttypes_h=no)])
776 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
777 if test $gcc_cv_header_inttypes_h = yes; then
778 AC_DEFINE(HAVE_INTTYPES_H, 1,
779 [Define if you have a working <inttypes.h> header file.])
782 dnl Disabled until we have a complete test for buggy enum bitfields.
783 dnl gcc_AC_C_ENUM_BF_UNSIGNED
785 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
786 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
787 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
788 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
791 if test x$ac_cv_func_mbstowcs = xyes; then
792 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
793 [ AC_TRY_RUN([#include <stdlib.h>
799 gcc_cv_func_mbstowcs_works=yes,
800 gcc_cv_func_mbstowcs_works=no,
801 gcc_cv_func_mbstowcs_works=yes)])
802 if test x$gcc_cv_func_mbstowcs_works = xyes; then
803 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
804 [Define this macro if mbstowcs does not crash when its
805 first argument is NULL.])
809 gcc_AC_CHECK_TYPE(ssize_t, int)
811 # Try to determine the array type of the second argument of getgroups
812 # for the target system (int or gid_t).
814 if test "${target}" = "${build}"; then
815 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
818 # This condition may need some tweaking. It should include all
819 # targets where the array type of the second argument of getgroups
820 # is int and the type of gid_t is not equivalent to int.
821 *-*-sunos* | *-*-ultrix*)
822 TARGET_GETGROUPS_T=int
825 TARGET_GETGROUPS_T=gid_t
829 AC_SUBST(TARGET_GETGROUPS_T)
831 gcc_AC_FUNC_PRINTF_PTR
832 gcc_AC_FUNC_MMAP_BLACKLIST
837 *** UWIN may not be used as a host platform because
838 *** linking with posix.dll is not allowed by the GNU GPL])
841 # Under VMS, vfork works very different than on Unix. The standard test
842 # won't work, and it isn't easily adaptable. It makes more sense to
844 ac_cv_func_vfork_works=yes
850 # Until we have in-tree GNU iconv:
852 AC_SUBST(LIBICONV_DEP)
856 # We will need to find libiberty.h and ansidecl.h
857 saved_CFLAGS="$CFLAGS"
858 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
859 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
860 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
861 fprintf_unlocked strstr errno vasprintf \
862 malloc realloc calloc free basename getopt clock, , ,[
863 #include "ansidecl.h"
864 #include "system.h"])
866 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
867 #include "ansidecl.h"
869 #ifdef HAVE_SYS_RESOURCE_H
870 #include <sys/resource.h>
875 #include "ansidecl.h"
877 #ifdef HAVE_SYS_RESOURCE_H
878 #include <sys/resource.h>
880 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
881 [Define to \`long' if <sys/resource.h> doesn't define.])])
883 gcc_AC_CHECK_DECLS(ldgetname, , ,[
884 #include "ansidecl.h"
891 gcc_AC_CHECK_DECLS(times, , ,[
892 #include "ansidecl.h"
894 #ifdef HAVE_SYS_TIMES_H
895 #include <sys/times.h>
899 # More time-related stuff.
900 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
902 #include "ansidecl.h"
904 #ifdef HAVE_SYS_TIMES_H
905 #include <sys/times.h>
907 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
908 if test $ac_cv_struct_tms = yes; then
909 AC_DEFINE(HAVE_STRUCT_TMS, 1,
910 [Define if <sys/times.h> defines struct tms.])
913 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
914 # revisit after autoconf 2.50.
915 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
917 #include "ansidecl.h"
919 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
920 if test $gcc_cv_type_clock_t = yes; then
921 AC_DEFINE(HAVE_CLOCK_T, 1,
922 [Define if <time.h> defines clock_t.])
925 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
927 #include "ansidecl.h"
930 [if ((uchar *)0) return 0;
931 if (sizeof(uchar)) return 0;],
932 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
933 if test $ac_cv_type_uchar = yes; then
934 AC_DEFINE(HAVE_UCHAR, 1,
935 [Define if <sys/types.h> defines \`uchar'.])
938 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
939 CFLAGS="$saved_CFLAGS"
941 gcc_AC_INITFINI_ARRAY
943 # mkdir takes a single argument on some systems.
944 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
952 # With Setjmp/Longjmp based exception handling.
953 AC_ARG_ENABLE(sjlj-exceptions,
954 [ --enable-sjlj-exceptions
955 arrange to use setjmp/longjmp exception handling],
956 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
957 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
958 [Define 0/1 to force the choice for exception handling model.])])
960 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
961 # Use libunwind based exception handling.
962 AC_ARG_ENABLE(libunwind-exceptions,
963 [ --enable-libunwind-exceptions force use libunwind for exceptions],
964 use_libunwind_exceptions=$enableval,
965 use_libunwind_exceptions=$use_libunwind_default)
966 if test x"$use_libunwind_exceptions" = xyes; then
967 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
968 [Define if gcc should use -lunwind.])
971 # --------------------------------------------------------
972 # Build, host, and target specific configuration fragments
973 # --------------------------------------------------------
978 build_install_headers_dir=install-headers-tar
985 # Decode the host machine, then the target machine.
986 # For the host machine, we save the xm_file variable as host_xm_file;
987 # then we decode the target machine and forget everything else
988 # that came from the host machine.
989 for machine in $build $host $target; do
990 . ${srcdir}/config.gcc
993 extra_objs="${host_extra_objs} ${extra_objs}"
995 # Default the target-machine variables that were not explicitly set.
996 if test x"$tm_file" = x
997 then tm_file=$cpu_type/$cpu_type.h; fi
999 if test x"$extra_headers" = x
1000 then extra_headers=; fi
1002 if test x$md_file = x
1003 then md_file=$cpu_type/$cpu_type.md; fi
1005 if test x$out_file = x
1006 then out_file=$cpu_type/$cpu_type.c; fi
1008 if test x"$tmake_file" = x
1009 then tmake_file=$cpu_type/t-$cpu_type
1012 if test x"$dwarf2" = xyes
1013 then tm_file="$tm_file tm-dwarf2.h"
1016 # Say what files are being used for the output code and MD file.
1017 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1018 echo "Using \`$srcdir/config/$md_file' as machine description file."
1020 # If any of the xm_file variables contain nonexistent files, warn
1021 # about them and drop them.
1024 for x in $build_xm_file; do
1025 if test -f $srcdir/config/$x
1027 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1033 for x in $host_xm_file; do
1034 if test -f $srcdir/config/$x
1036 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1042 for x in $xm_file; do
1043 if test -f $srcdir/config/$x
1045 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1051 for f in $tm_file; do
1054 if test $count = ax; then
1055 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1057 echo "Using the following target machine macro files:"
1058 for f in $tm_file; do
1059 echo " $srcdir/config/$f"
1063 if test x$need_64bit_hwint = xyes; then
1064 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1065 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1069 for f in $host_xm_file; do
1072 if test $count = a; then
1074 elif test $count = ax; then
1075 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1077 echo "Using the following host machine macro files:"
1078 for f in $host_xm_file; do
1079 echo " $srcdir/config/$f"
1082 echo "Using ${out_host_hook_obj} for host machine hooks."
1084 if test "$host_xm_file" != "$build_xm_file"; then
1086 for f in $build_xm_file; do
1089 if test $count = a; then
1091 elif test $count = ax; then
1092 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1094 echo "Using the following build machine macro files:"
1095 for f in $build_xm_file; do
1096 echo " $srcdir/config/$f"
1101 if test x$thread_file = x; then
1102 if test x$target_thread_file != x; then
1103 thread_file=$target_thread_file
1105 thread_file='single'
1109 if test x$enable___cxa_atexit = xyes || \
1110 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1111 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1112 [Define if you want to use __cxa_atexit, rather than atexit, to
1113 register C++ destructors for local statics and global objects.
1114 This is essential for fully standards-compliant handling of
1115 destructors, but requires __cxa_atexit in libc.])
1118 # Look for a file containing extra machine modes.
1119 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1120 extra_modes_file='$(srcdir)'/config/${extra_modes}
1121 AC_SUBST(extra_modes_file)
1122 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1123 [Define to the name of a file containing a list of extra machine modes
1124 for this architecture.])
1125 AC_DEFINE(EXTRA_CC_MODES, 1,
1126 [Define if the target architecture needs extra machine modes to represent
1127 the results of comparisons.])
1130 # auto-host.h is the file containing items generated by autoconf and is
1131 # the first file included by config.h.
1132 # If host=build, it is correct to have bconfig include auto-host.h
1133 # as well. If host!=build, we are in error and need to do more
1134 # work to find out the build config parameters.
1135 if test x$host = x$build
1137 build_auto=auto-host.h
1140 # We create a subdir, then run autoconf in the subdir.
1141 # To prevent recursion we set host and build for the new
1142 # invocation of configure to the build for this invocation
1149 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1150 *) realsrcdir=../${srcdir};;
1152 saved_CFLAGS="${CFLAGS}"
1153 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1154 ${realsrcdir}/configure \
1155 --target=$target_alias --host=$build_alias --build=$build_alias
1156 CFLAGS="${saved_CFLAGS}"
1158 # We just finished tests for the build machine, so rename
1159 # the file auto-build.h in the gcc directory.
1160 mv auto-host.h ../auto-build.h
1163 build_auto=auto-build.h
1164 FORBUILD=../${build_subdir}
1168 tm_file="${tm_file} defaults.h"
1169 tm_p_file="${tm_p_file} tm-preds.h"
1170 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1171 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1172 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1173 # put this back in temporarily.
1174 xm_file="ansidecl.h ${xm_file}"
1180 # Get the version trigger filename from the toplevel
1181 if test "${with_gcc_version_trigger+set}" = set; then
1182 gcc_version_trigger=$with_gcc_version_trigger
1184 gcc_version_trigger=${srcdir}/version.c
1187 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1188 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1190 # Compile in configure arguments.
1191 if test -f configargs.h ; then
1192 # Being re-configured.
1193 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1194 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1196 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1198 cat > configargs.h <<EOF
1199 /* Generated automatically. */
1200 static const char configuration_arguments[] = "$gcc_config_arguments";
1201 static const char thread_model[] = "$thread_file";
1203 static const struct {
1204 const char *name, *value;
1205 } configure_default_options[] = $configure_default_options;
1209 # Internationalization
1211 VERSION="$gcc_version"
1215 ZW_GNU_GETTEXT_SISTER_DIR
1217 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1218 # -liconv on the link line twice.
1219 case "$LIBINTL" in *$LIBICONV*)
1223 # Windows32 Registry support for specifying GCC installation paths.
1224 AC_ARG_ENABLE(win32-registry,
1225 [ --disable-win32-registry
1226 disable lookup of installation paths in the
1227 Registry on Windows hosts
1228 --enable-win32-registry enable registry lookup (default)
1229 --enable-win32-registry=KEY
1230 use KEY instead of GCC version as the last portion
1231 of the registry key],,)
1233 win32 | pe | cygwin* | mingw32* | uwin*)
1234 AC_MSG_CHECKING(whether windows registry support is requested)
1235 if test "x$enable_win32_registry" != xno; then
1236 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1237 [Define to 1 if installation paths should be looked up in Windows32
1238 Registry. Ignored on non windows32 hosts.])
1240 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1245 # Check if user specified a different registry key.
1246 case "x${enable_win32_registry}" in
1249 gcc_cv_win32_registry_key="$VERSION"
1252 # no registry lookup.
1253 gcc_cv_win32_registry_key=''
1256 # user-specified key.
1257 gcc_cv_win32_registry_key="$enable_win32_registry"
1261 if test "x$enable_win32_registry" != xno; then
1262 AC_MSG_CHECKING(registry key on windows hosts)
1263 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1264 [Define to be the last portion of registry key on windows hosts.])
1265 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1270 # Get an absolute path to the GCC top-level source directory
1271 holddir=`${PWDCMD-pwd}`
1273 topdir=`${PWDCMD-pwd}`
1276 # Conditionalize the makefile for this host machine.
1277 # Make-host contains the concatenation of all host makefile fragments
1278 # [there can be more than one]. This file is built by configure.frag.
1279 host_overrides=Make-host
1280 dep_host_xmake_file=
1281 for f in .. ${host_xmake_file}
1283 if test -f ${srcdir}/config/$f
1285 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1289 # Conditionalize the makefile for this target machine.
1290 # Make-target contains the concatenation of all host makefile fragments
1291 # [there can be more than one]. This file is built by configure.frag.
1292 target_overrides=Make-target
1294 for f in .. ${tmake_file}
1296 if test -f ${srcdir}/config/$f
1298 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1302 symbolic_link='ln -s'
1304 # If the host doesn't support symlinks, modify CC in
1305 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1306 # Otherwise, we can use "CC=$(CC)".
1308 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1310 cc_set_by_configure="\$(CC)"
1311 quoted_cc_set_by_configure="\$(CC)"
1312 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1313 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1316 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1318 symbolic_link="cp -p"
1322 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1323 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1324 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1325 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1329 out_object_file=`basename $out_file .c`.o
1332 for f in $tm_file; do
1335 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1337 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1338 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1343 for f in $tm_p_file; do
1346 tm_p_file_list="${tm_p_file_list} $f" ;;
1347 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1352 for f in $host_xm_file; do
1355 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1357 host_xm_file_list="${host_xm_file_list} $f" ;;
1359 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1360 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1365 for f in $build_xm_file; do
1368 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1369 auto-build.h | auto-host.h )
1370 build_xm_file_list="${build_xm_file_list} $f" ;;
1372 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1373 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1377 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1378 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1379 CROSS= AC_SUBST(CROSS)
1380 ALL=all.internal AC_SUBST(ALL)
1381 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1382 if test x$host != x$target
1384 CROSS="-DCROSS_COMPILE"
1386 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1387 case "$host","$target" in
1388 i?86-*-*,x86_64-*-* \
1389 | powerpc*-*-*,powerpc64*-*-*)
1390 CROSS="$CROSS -DNATIVE_CROSS" ;;
1392 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1393 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1394 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1397 # If this is a cross-compiler that does not
1398 # have its own set of headers then define
1401 # If this is using newlib, without having the headers available now,
1402 # then define inhibit_libc in LIBGCC2_CFLAGS.
1403 # This prevents libgcc2 from containing any code which requires libc
1406 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1407 test x$with_newlib = xyes ; } &&
1408 test "x$with_headers" = x ; then
1409 inhibit_libc=-Dinhibit_libc
1411 AC_SUBST(inhibit_libc)
1413 # When building gcc with a cross-compiler, we need to adjust things so
1414 # that the generator programs are still built with the native compiler.
1415 # Also, we cannot run fixincludes or fix-header.
1417 # These are the normal (build=host) settings:
1418 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1419 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1420 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1421 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1423 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1424 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1426 # And these apply if build != host, or we are generating coverage data
1427 if test x$build != x$host || test "x$coverage_flags" != x
1430 BUILD_PREFIX_1=build-
1431 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1433 if test "x$TARGET_SYSTEM_ROOT" = x; then
1439 # Expand extra_headers to include complete path.
1440 # This substitutes for lots of t-* files.
1442 if test "x$extra_headers" = x
1445 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1446 for file in $extra_headers;
1448 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1452 # Add a definition of USE_COLLECT2 if system wants one.
1453 case $use_collect2 in
1454 no) use_collect2= ;;
1457 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1458 xm_defines="${xm_defines} USE_COLLECT2"
1462 # Identify the assembler which will work hand-in-glove with the newly
1463 # built GCC, so that we can examine its features. This is the assembler
1464 # which will be driven by the driver program.
1466 # If build != host, and we aren't building gas in-tree, we identify a
1467 # build->target assembler and hope that it will have the same features
1468 # as the host->target assembler we'll be using.
1469 AC_MSG_CHECKING(what assembler to use)
1472 gcc_cv_gas_major_version=
1473 gcc_cv_gas_minor_version=
1474 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1475 if test -x "$DEFAULT_ASSEMBLER"; then
1476 gcc_cv_as="$DEFAULT_ASSEMBLER"
1477 elif test -x "$AS"; then
1479 elif test -x as$host_exeext; then
1480 # Build using assembler in the current directory.
1481 gcc_cv_as=./as$host_exeext
1482 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1483 && test -f ../gas/Makefile; then
1484 # Single tree build which includes gas.
1486 _gcc_COMPUTE_GAS_VERSION
1487 rm -f as$host_exeext
1488 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1489 in_tree_gas_is_elf=no
1490 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1491 || (grep 'obj_format = multi' ../gas/Makefile \
1492 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1494 in_tree_gas_is_elf=yes
1498 if test "x$gcc_cv_as" = x; then
1499 # Search the same directories that the installed compiler will
1500 # search. Else we may find the wrong assembler and lose. If we
1501 # do not find a suitable assembler binary, then try the user's
1504 # Also note we have to check MD_EXEC_PREFIX before checking the
1505 # user's path. Unfortunately, there is no good way to get at the
1506 # value of MD_EXEC_PREFIX here. So we do a brute force search
1507 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1508 # to be fixed as part of the make/configure rewrite too.
1510 if test "x$exec_prefix" = xNONE; then
1511 if test "x$prefix" = xNONE; then
1512 test_prefix=/usr/local
1517 test_prefix=$exec_prefix
1520 # If the loop below does not find an assembler, then use whatever
1521 # one we can find in the users's path.
1523 if test "x$program_prefix" != xNONE; then
1524 gcc_cv_as=${program_prefix}as$host_exeext
1526 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1529 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1530 $test_prefix/lib/gcc-lib/$target_alias \
1531 /usr/lib/gcc/$target_alias/$gcc_version \
1532 /usr/lib/gcc/$target_alias \
1533 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1534 $test_prefix/$target_alias/bin"
1536 if test x$host = x$target; then
1537 test_dirs="$test_dirs \
1542 /bsd43/usr/lib/cmplrs/cc \
1543 /usr/cross64/usr/bin \
1544 /usr/lib/cmplrs/cc \
1545 /sysv/usr/lib/cmplrs/cc \
1546 /svr4/usr/lib/cmplrs/cc \
1550 for dir in $test_dirs; do
1551 if test -x $dir/as$host_exeext; then
1552 gcc_cv_as=$dir/as$host_exeext
1557 case $in_tree_gas in
1559 AC_MSG_RESULT("newly built gas")
1562 AC_MSG_RESULT($gcc_cv_as)
1566 # Identify the linker which will work hand-in-glove with the newly
1567 # built GCC, so that we can examine its features. This is the linker
1568 # which will be driven by the driver program.
1570 # If build != host, and we aren't building gas in-tree, we identify a
1571 # build->target linker and hope that it will have the same features
1572 # as the host->target linker we'll be using.
1573 AC_MSG_CHECKING(what linker to use)
1576 gcc_cv_gld_major_version=
1577 gcc_cv_gld_minor_version=
1578 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1579 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1580 if test -x "$DEFAULT_LINKER"; then
1581 gcc_cv_ld="$DEFAULT_LINKER"
1582 elif test -x "$LD"; then
1584 elif test -x collect-ld$host_exeext; then
1585 # Build using linker in the current directory.
1586 gcc_cv_ld=./collect-ld$host_exeext
1587 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1588 && test -f ../ld/Makefile; then
1589 # Single tree build which includes ld.
1591 in_tree_ld_is_elf=no
1592 if (grep 'EMUL = .*elf' ../ld/Makefile \
1593 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1594 in_tree_ld_is_elf=yes
1596 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
1599 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1601 if test x$gcc_cv_gld_version != x; then
1606 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1607 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1609 rm -f collect-ld$host_exeext
1610 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1614 if test "x$gcc_cv_ld" = x; then
1615 # Search the same directories that the installed compiler will
1616 # search. Else we may find the wrong linker and lose. If we
1617 # do not find a suitable linker binary, then try the user's
1620 # Also note we have to check MD_EXEC_PREFIX before checking the
1621 # user's path. Unfortunately, there is no good way to get at the
1622 # value of MD_EXEC_PREFIX here. So we do a brute force search
1623 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1624 # to be fixed as part of the make/configure rewrite too.
1626 if test "x$exec_prefix" = xNONE; then
1627 if test "x$prefix" = xNONE; then
1628 test_prefix=/usr/local
1633 test_prefix=$exec_prefix
1636 # If the loop below does not find an linker, then use whatever
1637 # one we can find in the users's path.
1639 if test "x$program_prefix" != xNONE; then
1640 gcc_cv_ld=${program_prefix}ld$host_exeext
1642 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1645 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1646 $test_prefix/lib/gcc-lib/$target_alias \
1647 /usr/lib/gcc/$target_alias/$gcc_version \
1648 /usr/lib/gcc/$target_alias \
1649 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1650 $test_prefix/$target_alias/bin"
1652 if test x$host = x$target; then
1653 test_dirs="$test_dirs \
1658 /bsd43/usr/lib/cmplrs/cc \
1659 /usr/cross64/usr/bin \
1660 /usr/lib/cmplrs/cc \
1661 /sysv/usr/lib/cmplrs/cc \
1662 /svr4/usr/lib/cmplrs/cc \
1666 for dir in $test_dirs; do
1667 if test -x $dir/ld$host_exeext; then
1668 gcc_cv_ld=$dir/ld$host_exeext
1675 AC_MSG_RESULT("newly built ld")
1678 AC_MSG_RESULT($gcc_cv_ld)
1682 # Figure out what nm we will be using.
1683 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1684 AC_MSG_CHECKING(what nm to use)
1686 if test -x nm$host_exeext; then
1687 gcc_cv_nm=./nm$host_exeext
1688 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1689 && test -f ../binutils/Makefile; then
1690 # Single tree build which includes binutils.
1692 gcc_cv_nm=./nm$host_exeext
1693 rm -f nm$host_exeext
1694 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1695 elif test "x$program_prefix" != xNONE; then
1696 gcc_cv_nm=${program_prefix}nm$host_exeext
1698 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1701 yes) AC_MSG_RESULT("newly built nm") ;;
1702 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1705 # Figure out what objdump we will be using.
1706 AC_MSG_CHECKING(what objdump to use)
1708 if test -x objdump$host_exeext; then
1709 gcc_cv_objdump=./objdump$host_exeext
1710 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1711 && test -f ../binutils/Makefile; then
1712 # Single tree build which includes binutils.
1714 gcc_cv_objdump=./objdump$host_exeext
1715 rm -f objdump$host_exeext
1716 $symbolic_link ../binutils/objdump$host_exeext \
1717 objdump$host_exeext 2>/dev/null
1718 elif test "x$program_prefix" != xNONE; then
1719 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1721 gcc_cv_objdump=`echo objdump | \
1722 sed ${program_transform_name}`$host_exeext
1724 case $in_tree_objdump in
1725 yes) AC_MSG_RESULT("newly built objdump") ;;
1726 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1729 # Figure out what assembler alignment features are present.
1730 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1734 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1735 [Define if your assembler supports .balign and .p2align.])])
1737 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1740 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1741 [Define if your assembler supports specifying the maximum number
1742 of bytes to skip when using the GAS .p2align command.])])
1744 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1746 [conftest_label1: .word 0
1748 conftest_label2: .word 0
1750 [if test x$gcc_cv_nm != x; then
1751 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1752 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1753 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1755 else gcc_cv_as_subsection_m1=yes
1757 rm -f conftest.nm1 conftest.nm2
1759 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1760 [Define if your assembler supports .subsection and .subsection -1 starts
1761 emitting at the beginning of your section.])])
1763 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1766 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1768 # .hidden needs to be supported in both the assembler and the linker,
1769 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1770 # This is irritatingly difficult to feature test for; we have to check the
1771 # date string after the version number. If we've got an in-tree
1772 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1774 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1775 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1780 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1781 [if test $in_tree_ld = yes ; then
1783 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1784 && test $in_tree_ld_is_elf = yes; then
1785 gcc_cv_ld_hidden=yes
1788 gcc_cv_ld_hidden=yes
1789 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1790 if echo "$ld_ver" | grep GNU > /dev/null; then
1792 ld_vers=`echo $ld_ver | sed -n \
1793 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1794 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1795 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1796 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1797 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1798 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1799 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1800 if test 0"$ld_date" -lt 20020404; then
1801 if test -n "$ld_date"; then
1802 # If there was date string, but was earlier than 2002-04-04, fail
1804 elif test -z "$ld_vers"; then
1805 # If there was no date string nor ld version number, something is wrong
1808 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1809 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1810 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1811 test -z "$ld_vers_patch" && ld_vers_patch=0
1812 if test "$ld_vers_major" -lt 2; then
1814 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1815 gcc_cv_ld_hidden="no"
1816 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1825 if test x"$gnu_ld_flag" = x"no"; then
1826 # Even if using gas with .hidden support, the resulting object files
1827 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1828 # N64 linkers, the problem is that the linker refuses to accept
1829 # -call_shared (passed by default to the linker) and -r (used to
1830 # link the object file generated without .hidden directives with
1831 # one that hides symbols), so we also lose.
1838 libgcc_visibility=no
1839 AC_SUBST(libgcc_visibility)
1840 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden=yes; then
1841 libgcc_visibility=yes
1842 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1843 [Define if your assembler and linker support .hidden.])
1846 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1847 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1855 [# GAS versions before 2.11 do not support uleb128,
1856 # despite appearing to.
1857 # ??? There exists an elf-specific test that will crash
1858 # the assembler. Perhaps it's better to figure out whether
1859 # arbitrary sections are supported and try the test.
1860 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1861 if echo "$as_ver" | grep GNU > /dev/null; then
1863 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1864 as_major=`echo $as_ver | sed 's/\..*//'`
1865 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1867 if test $as_major -eq 2 && test $as_minor -lt 11
1869 else gcc_cv_as_leb128=yes
1872 [AC_DEFINE(HAVE_AS_LEB128, 1,
1873 [Define if your assembler supports .sleb128 and .uleb128.])])
1875 # GAS versions up to and including 2.11.0 may mis-optimize
1877 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1885 .section .eh_frame,"aw",@progbits
1887 .4byte .LECIE1-.LSCIE1
1901 .4byte .LEFDE1-.LASFDE1
1903 .4byte .LASFDE1-__FRAME_BEGIN__
1911 [ cat > conftest.lit <<EOF
1912 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1913 0010 01000000 12000000 18000000 00000000 ................
1914 0020 08000000 04080000 0044 .........D
1916 cat > conftest.big <<EOF
1917 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1918 0010 00000001 00000012 00000018 00000000 ................
1919 0020 00000008 04000000 0844 .........D
1921 # If the assembler didn't choke, and we can objdump,
1922 # and we got the correct data, then succeed.
1923 if test x$gcc_cv_objdump != x \
1924 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1925 | tail -3 > conftest.got \
1926 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1927 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1929 gcc_cv_as_eh_frame=yes
1930 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
1931 gcc_cv_as_eh_frame=buggy
1933 # Uh oh, what do we do now?
1934 gcc_cv_as_eh_frame=no
1937 if test $gcc_cv_as_eh_frame = buggy; then
1938 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1939 [Define if your assembler mis-optimizes .eh_frame data.])
1942 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
1943 [elf,2,12,0], [--fatal-warnings],
1944 [.section .rodata.str, "aMS", @progbits, 1],,
1945 [AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1946 [Define if your assembler supports marking sections with SHF_MERGE flag.])])
1948 # Thread-local storage - the check is heavily parametrized.
1957 .section ".tdata","awT",@progbits
1960 ldq $27,__tls_get_addr($29) !literal!1
1961 lda $16,foo($29) !tlsgd!1
1962 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1963 ldq $27,__tls_get_addr($29) !literal!2
1964 lda $16,foo($29) !tlsldm!2
1965 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
1966 ldq $1,foo($29) !gotdtprel
1967 ldah $2,foo($29) !dtprelhi
1968 lda $3,foo($2) !dtprello
1969 lda $4,foo($29) !dtprel
1970 ldq $1,foo($29) !gottprel
1971 ldah $2,foo($29) !tprelhi
1972 lda $3,foo($2) !tprello
1973 lda $4,foo($29) !tprel'
1980 .section ".tdata","awT",@progbits
1984 leal foo@TLSGD(,%ebx,1), %eax
1985 leal foo@TLSLDM(%ebx), %eax
1986 leal foo@DTPOFF(%eax), %edx
1987 movl foo@GOTTPOFF(%ebx), %eax
1988 subl foo@GOTTPOFF(%ebx), %eax
1989 addl foo@GOTNTPOFF(%ebx), %eax
1990 movl foo@INDNTPOFF, %eax
1991 movl $foo@TPOFF, %eax
1992 subl $foo@TPOFF, %eax
1993 leal foo@NTPOFF(%ecx), %eax'
1999 .section ".tdata","awT",@progbits
2003 leaq foo@TLSGD(%rip), %rdi
2004 leaq foo@TLSLD(%rip), %rdi
2005 leaq foo@DTPOFF(%rax), %rdx
2006 movq foo@GOTTPOFF(%rip), %rax
2007 movq $foo@TPOFF, %rax'
2013 .section ".tdata","awT",@progbits
2016 addl r16 = @ltoff(@dtpmod(foo#)), gp
2017 addl r17 = @ltoff(@dtprel(foo#)), gp
2018 addl r18 = @ltoff(@tprel(foo#)), gp
2019 addl r19 = @dtprel(foo#), gp
2020 adds r21 = @dtprel(foo#), r13
2021 movl r23 = @dtprel(foo#)
2022 addl r20 = @tprel(foo#), gp
2023 adds r22 = @tprel(foo#), r13
2024 movl r24 = @tprel(foo#)'
2030 .section ".tdata","awT",@progbits
2038 addi 3,31,ld0@got@tlsgd
2040 addi 3,31,x1@got@tlsld
2043 addis 9,3,x2@dtprel@ha
2044 addi 9,9,x2@dtprel@l
2045 lwz 9,x3@got@tprel(31)
2048 addis 9,2,x2@tprel@ha
2049 addi 9,9,x2@tprel@l'
2056 .section ".tdata","awT",@progbits
2064 addi 3,2,ld0@got@tlsgd
2070 addi 3,2,x1@got@tlsld
2076 addis 9,3,x2@dtprel@ha
2077 addi 9,9,x2@dtprel@l
2080 ld 9,x3@got@dtprel(2)
2090 .section ".tdata","awT",@progbits
2099 l %r1,foo@GOTNTPOFF(%r12)
2100 l %r1,0(%r1):tls_load:foo
2101 bas %r14,0(%r1,%r13):tls_gdcall:foo
2102 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2109 .section ".tdata","awT",@progbits
2117 lg %r1,foo@GOTNTPOFF(%r12)
2118 larl %r1,foo@INDNTPOFF
2119 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2120 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2123 tls_as_opt="-m64 -Aesame"
2126 if test -z "$tls_first_major"; then
2127 : # If we don't have a check, assume no support.
2129 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2130 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt --fatal-warnings],
2132 [AC_DEFINE(HAVE_AS_TLS, 1,
2133 [Define if your assembler supports thread-local storage.])])
2136 # Target-specific assembler checks.
2139 # All TARGET_ABI_OSF targets.
2140 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2141 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2142 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2145 extbl $3, $2, $3 !lituse_bytoff!1
2146 ldq $2, a($29) !literal!1
2147 ldq $4, b($29) !literal!2
2148 ldq_u $3, 0($2) !lituse_base!1
2149 ldq $27, f($29) !literal!5
2150 jsr $26, ($27), f !lituse_jsr!5
2151 ldah $29, 0($26) !gpdisp!3
2152 lda $0, c($29) !gprel
2153 ldah $1, d($29) !gprelhigh
2154 lda $1, d($1) !gprellow
2155 lda $29, 0($29) !gpdisp!3],,
2156 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2157 [Define if your assembler supports explicit relocations.])])
2161 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2162 [.register %g2, #scratch],,
2163 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2164 [Define if your assembler supports .register.])])
2166 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2168 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2169 [Define if your assembler supports -relax option.])])
2171 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2172 gcc_cv_as_sparc_ua_pcrel,,
2180 .uaword %r_disp32(foo)],
2181 [if test x$gcc_cv_ld != x \
2182 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2183 gcc_cv_as_sparc_ua_pcrel=yes
2186 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2187 [Define if your assembler and linker support unaligned PC relative relocs.])
2189 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2190 gcc_cv_as_sparc_ua_pcrel_hidden,,
2195 .uaword %r_disp32(foo)
2196 .byte 0x32, 0x33, 0x34
2201 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2202 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2203 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2204 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2205 if $gcc_cv_objdump -R conftest 2> /dev/null \
2206 | grep 'DISP32' > /dev/null 2>&1; then
2209 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2213 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2214 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2215 ]) # unaligned pcrel relocs
2217 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2218 gcc_cv_as_sparc_offsetable_lo10,,
2221 or %g1, %lo(ab) + 12, %g1
2222 or %g1, %lo(ab + 12), %g1],
2223 [if test x$gcc_cv_objdump != x \
2224 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2225 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2226 gcc_cv_as_offsetable_lo10=yes
2228 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2229 [Define if your assembler supports offsetable %lo().])])
2233 i[34567]86-*-* | x86_64-*-*)
2235 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2236 gcc_cv_as_ix86_filds_fists,
2237 [2,9,0],, [filds mem; fists mem],,
2238 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2239 [Define if your assembler uses the new HImode fild and fist notation.])])
2241 # This one is used unconditionally by i386.[ch]; it is to be defined
2242 # to 1 if the feature is present, 0 otherwise.
2243 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2244 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2250 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2251 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2252 [Define true if the assembler supports '.long foo@GOTOFF'.])
2256 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2257 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2258 changequote(<<,>>)dnl
2260 addl r15 = @ltoffx(x#), gp
2262 ld8.mov r16 = [r15], x#>>,
2264 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2265 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2271 *-*-aix) conftest_s=' .csect .text[PR]';;
2272 *) conftest_s=' .text';;
2274 conftest_s="$conftest_s
2277 gcc_GAS_CHECK_FEATURE([mfcr field support],
2278 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2280 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2281 [Define if your assembler supports mfcr field.])])
2285 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2286 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2287 [ lw $4,%gp_rel(foo)($4)],,
2288 [if test x$target_cpu_default = x
2289 then target_cpu_default=MASK_EXPLICIT_RELOCS
2290 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2295 # ??? Not all targets support dwarf2 debug_line, even within a version
2296 # of gas. Moreover, we need to emit a valid instruction to trigger any
2297 # info to the output file. So, as supported targets are added to gas 2.11,
2298 # add some instruction here to (also) show we expect this might work.
2299 # ??? Once 2.11 is released, probably need to add first known working
2300 # version to the per-target configury.
2302 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2303 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2304 | xstormy16*-*-* | cris-*-*)
2314 if test x"$insn" != x; then
2316 .file 1 \"conftest.s\"
2319 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2320 gcc_cv_as_dwarf2_debug_line,
2321 [elf,2,11,0],, [$conftest_s],
2322 [# ??? This fails with non-gnu grep. Maybe use objdump?
2323 if grep debug_line conftest.o > /dev/null 2>&1; then
2324 gcc_cv_as_dwarf2_debug_line=yes
2327 # The .debug_line file table must be in the exact order that
2328 # we specified the files, since these indices are also used
2329 # by DW_AT_decl_file. Approximate this test by testing if
2330 # the assembler bitches if the same index is assigned twice.
2331 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2332 gcc_cv_as_dwarf2_file_buggy,,,
2336 if test $gcc_cv_as_dwarf2_debug_line = yes \
2337 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2338 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2339 [Define if your assembler supports dwarf2 .file/.loc directives,
2340 and preserves file table indices exactly as given.])
2343 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2344 gcc_cv_as_gdwarf2_flag,
2345 [elf,2,11,0], [--gdwarf2], [$insn],,
2346 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2347 [Define if your assembler supports the --gdwarf2 option.])])
2349 gcc_GAS_CHECK_FEATURE([--gstabs option],
2350 gcc_cv_as_gstabs_flag,
2351 [elf,2,11,0], [--gstabs], [$insn],
2352 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2353 # and warns about it, but still exits successfully. So check for
2355 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2357 else gcc_cv_as_gstabs_flag=yes
2359 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2360 [Define if your assembler supports the --gstabs option.])])
2363 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2364 gcc_cv_ld_ro_rw_mix=unknown
2365 if test $in_tree_ld = yes ; then
2366 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2367 && test $in_tree_ld_is_elf = yes; then
2368 gcc_cv_ld_ro_rw_mix=read-write
2370 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2371 echo '.section myfoosect, "a"' > conftest1.s
2372 echo '.section myfoosect, "aw"' > conftest2.s
2373 echo '.byte 1' >> conftest2.s
2374 echo '.section myfoosect, "a"' > conftest3.s
2375 echo '.byte 0' >> conftest3.s
2376 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2377 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2378 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2379 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2380 conftest2.o conftest3.o > /dev/null 2>&1; then
2381 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2382 | sed -e '/myfoosect/!d' -e N`
2383 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2384 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2385 gcc_cv_ld_ro_rw_mix=read-only
2387 gcc_cv_ld_ro_rw_mix=read-write
2392 rm -f conftest.* conftest[123].*
2395 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2396 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2397 [Define if your linker links a mix of read-only
2398 and read-write sections into a read-write section.])
2400 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2402 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2403 gcc_cv_ld_eh_frame_hdr=no
2404 if test $in_tree_ld = yes ; then
2405 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2406 && test $in_tree_ld_is_elf = yes; then
2407 gcc_cv_ld_eh_frame_hdr=yes
2409 elif test x$gcc_cv_ld != x; then
2410 # Check if linker supports --eh-frame-hdr option
2411 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2412 gcc_cv_ld_eh_frame_hdr=yes
2415 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2416 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2417 [Define if your linker supports --eh-frame-hdr option.])
2419 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2421 AC_MSG_CHECKING(linker position independent executable support)
2423 if test $in_tree_ld = yes ; then
2424 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2425 && test $in_tree_ld_is_elf = yes; then
2428 elif test x$gcc_cv_ld != x; then
2429 # Check if linker supports -pie option
2430 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2434 if test x"$gcc_cv_ld_pie" = xyes; then
2435 AC_DEFINE(HAVE_LD_PIE, 1,
2436 [Define if your linker supports -pie option.])
2438 AC_MSG_RESULT($gcc_cv_ld_pie)
2440 # Miscellaneous target-specific checks.
2443 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2444 gcc_cv_mips_libgloss_startup=no
2445 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2446 if test "x$exec_prefix" = xNONE; then
2447 if test "x$prefix" = xNONE; then
2448 test_prefix=/usr/local
2453 test_prefix=$exec_prefix
2455 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2457 if grep '^STARTUP' $f > /dev/null 2>&1; then
2458 gcc_cv_mips_libgloss_startup=yes
2462 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2463 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2464 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2466 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2470 if test x$with_sysroot = x && test x$host = x$target \
2471 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2472 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2473 [Define to PREFIX/include if cpp should also search that directory.])
2476 # Figure out what language subdirectories are present.
2477 # Look if the user specified --enable-languages="..."; if not, use
2478 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2480 # NB: embedded tabs in this IF block -- do not untabify
2481 if test x"${enable_languages+set}" != xset; then
2482 if test x"${LANGUAGES+set}" = xset; then
2483 enable_languages="${LANGUAGES}"
2484 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2487 enable_languages=all
2490 if test x"${enable_languages}" = x \
2491 || test x"${enable_languages}" = xyes;
2493 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2496 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2498 # First scan to see if an enabled language requires some other language.
2499 # We assume that a given config-lang.in will list all the language
2500 # front ends it requires, even if some are required indirectly.
2501 for lang in ${srcdir}/*/config-lang.in ..
2506 # The odd quoting in the next line works around
2507 # an apparent bug in bash 1.12 on linux.
2509 ${srcdir}/[*]/config-lang.in)
2512 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2513 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2514 for other in $this_lang_requires
2516 case ,${enable_languages}, in
2522 enable_languages="$enable_languages,$other"
2531 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2534 for lang in ${srcdir}/*/config-lang.in ..
2538 # The odd quoting in the next line works around
2539 # an apparent bug in bash 1.12 on linux.
2541 ${srcdir}/[*]/config-lang.in) ;;
2543 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2544 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2545 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2546 if test "x$lang_alias" = x
2548 echo "$lang doesn't set \$language." 1>&2
2551 case ${build_by_default},${enable_languages}, in
2552 *,$lang_alias,*) add_this_lang=yes ;;
2553 no,*) add_this_lang=no ;;
2554 *,all,*) add_this_lang=yes ;;
2555 *) add_this_lang=no ;;
2557 found_languages="${found_languages} ${lang_alias}"
2558 if test x"${add_this_lang}" = xyes; then
2560 ${srcdir}/ada/config-lang.in)
2561 if test x$have_gnat = xyes ; then
2562 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2566 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2576 for expected_language in ${expected_languages} ..
2578 if test "${expected_language}" != ..; then
2579 missing_language="${expected_language}"
2580 if test "${expected_language}" = "c" \
2581 || test "${expected_language}" = "all"; then
2584 for found_language in ${found_languages} ..
2586 if test "${found_language}" != ..; then
2587 if test "${expected_language}" = "${found_language}"; then
2592 if test "x${missing_language}" != x; then
2593 missing_languages="${missing_languages} ${missing_language}"
2598 if test "x$missing_languages" != x; then
2600 The following requested languages were not found:${missing_languages}
2601 The following languages were available: c${found_languages}])
2604 # Make gthr-default.h if we have a thread file.
2606 if test $thread_file != single; then
2607 rm -f gthr-default.h
2608 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2609 gthread_flags=-DHAVE_GTHR_DEFAULT
2611 AC_SUBST(gthread_flags)
2613 # Find out what GC implementation we want, or may, use.
2615 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2622 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2627 echo "Using $GGC for garbage collection."
2629 # Use the system's zlib library.
2631 zlibinc="-I\$(srcdir)/../zlib"
2632 AC_ARG_WITH(system-zlib,
2633 [ --with-system-zlib use installed libz],
2640 dnl Very limited version of automake's enable-maintainer-mode
2642 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2643 dnl maintainer-mode is disabled by default
2644 AC_ARG_ENABLE(maintainer-mode,
2645 [ --enable-maintainer-mode
2646 enable make rules and dependencies not useful
2647 (and sometimes confusing) to the casual installer],
2648 maintainer_mode=$enableval,
2651 AC_MSG_RESULT($maintainer_mode)
2653 if test "$maintainer_mode" = "yes"; then
2660 # Make empty files to contain the specs and options for each language.
2661 # Then add #include lines to for a compiler that has specs and/or options.
2666 for subdir in . $subdirs
2668 if test -f $srcdir/$subdir/lang.opt; then
2669 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2671 if test -f $srcdir/$subdir/lang-specs.h; then
2672 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2674 if test -f $srcdir/$subdir/$subdir-tree.def; then
2675 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2679 # These (without "all_") are set in each config-lang.in.
2680 # `language' must be a single word so is spelled singularly.
2685 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2686 # List of language makefile fragments.
2688 # Files for gengtype
2689 all_gtfiles="$target_gtfiles"
2690 # Files for gengtype with language
2691 all_gtfiles_files_langs=
2692 all_gtfiles_files_files=
2694 # Add the language fragments.
2695 # Languages are added via two mechanisms. Some information must be
2696 # recorded in makefile variables, these are defined in config-lang.in.
2697 # We accumulate them and plug them into the main Makefile.
2698 # The other mechanism is a set of hooks for each of the main targets
2699 # like `clean', `install', etc.
2701 language_fragments="Make-lang"
2702 language_hooks="Make-hooks"
2704 for s in .. $subdirs
2714 . ${srcdir}/$s/config-lang.in
2715 if test "x$language" = x
2717 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2720 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2721 if test -f ${srcdir}/$s/Makefile.in
2722 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2724 all_languages="$all_languages $language"
2725 if test "x$boot_language" = xyes
2727 all_boot_languages="$all_boot_languages $language"
2729 all_compilers="$all_compilers $compilers"
2730 all_stagestuff="$all_stagestuff $stagestuff"
2731 all_outputs="$all_outputs $outputs"
2732 all_gtfiles="$all_gtfiles $gtfiles"
2733 for f in .. $gtfiles
2737 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2738 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2744 # Pick up gtfiles for c
2747 . ${srcdir}/c-config-lang.in
2748 all_gtfiles="$all_gtfiles $gtfiles"
2749 for f in .. $gtfiles
2753 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2754 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2759 for language in .. $all_languages
2761 if test $language != ".."
2763 check_languages="$check_languages check-$language"
2767 # Since we can't use `::' targets, we link each language in
2768 # with a set of hooks, reached indirectly via lang.${target}.
2772 target_list="all.build all.cross start.encap rest.encap tags \
2773 info dvi generated-manpages \
2774 install-normal install-common install-info install-man \
2776 mostlyclean clean distclean extraclean maintainer-clean \
2777 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2778 for t in $target_list
2781 for lang in .. $all_languages
2783 if test $lang != ".."; then
2787 echo "lang.$t: $x" >> Make-hooks
2792 echo "dir ." > .gdbinit
2793 echo "dir ${srcdir}" >> .gdbinit
2794 if test x$gdb_needs_out_file_path = xyes
2796 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2798 if test "x$subdirs" != x; then
2801 echo "dir ${srcdir}/$s" >> .gdbinit
2804 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2806 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2807 # absolute path for gcc_tooldir based on inserting the number of up-directory
2808 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2809 # $(libsubdir)/@(unlibsubdir) based path.
2810 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2811 # make and thus we'd get different behavior depending on where we built the
2813 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2814 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2816 changequote(<<, >>)dnl
2817 # An explanation of the sed strings:
2818 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2819 # -e 's|/$||' match a trailing forward slash and eliminates it
2820 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2821 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2823 # (*) Note this pattern overwrites the first character of the string
2824 # with a forward slash if one is not already present. This is not a
2825 # problem because the exact names of the sub-directories concerned is
2826 # unimportant, just the number of them matters.
2828 # The practical upshot of these patterns is like this:
2830 # prefix exec_prefix result
2831 # ------ ----------- ------
2833 # /foo/ /foo/bar ../
2834 # /foo /foo/bar/ ../
2835 # /foo/ /foo/bar/ ../
2836 # /foo /foo/bar/ugg ../../
2839 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2840 changequote([, ])dnl
2842 AC_SUBST(gcc_tooldir)
2845 # Find a directory in which to install a shared libgcc.
2847 AC_ARG_ENABLE(version-specific-runtime-libs,
2848 [ --enable-version-specific-runtime-libs
2849 specify that runtime libraries should be
2850 installed in a compiler-specific directory])
2852 AC_ARG_WITH(slibdir,
2853 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2854 slibdir="$with_slibdir",
2855 if test "${enable_version_specific_runtime_libs+set}" = set; then
2856 slibdir='$(libsubdir)'
2857 elif test "$host" != "$target"; then
2858 slibdir='$(build_tooldir)/lib'
2864 objdir=`${PWDCMD-pwd}`
2867 # Process the language and host/target makefile fragments.
2868 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2870 # Substitute configuration variables
2873 AC_SUBST(all_boot_languages)
2874 AC_SUBST(all_compilers)
2875 AC_SUBST(all_gtfiles)
2876 AC_SUBST(all_gtfiles_files_langs)
2877 AC_SUBST(all_gtfiles_files_files)
2878 AC_SUBST(all_lang_makefiles)
2879 AC_SUBST(all_languages)
2880 AC_SUBST(all_stagestuff)
2881 AC_SUBST(build_exeext)
2882 AC_SUBST(build_install_headers_dir)
2883 AC_SUBST(build_xm_file_list)
2884 AC_SUBST(build_xm_file)
2885 AC_SUBST(build_xm_defines)
2886 AC_SUBST(check_languages)
2887 AC_SUBST(cc_set_by_configure)
2888 AC_SUBST(quoted_cc_set_by_configure)
2889 AC_SUBST(cpp_install_dir)
2890 AC_SUBST(dep_host_xmake_file)
2891 AC_SUBST(dep_tmake_file)
2892 AC_SUBST(extra_headers_list)
2893 AC_SUBST(extra_objs)
2894 AC_SUBST(extra_parts)
2895 AC_SUBST(extra_passes)
2896 AC_SUBST(extra_programs)
2897 AC_SUBST(float_h_file)
2898 AC_SUBST(gcc_config_arguments)
2899 AC_SUBST(gcc_gxx_include_dir)
2900 AC_SUBST(libstdcxx_incdir)
2901 AC_SUBST(gcc_version)
2902 AC_SUBST(gcc_version_full)
2903 AC_SUBST(gcc_version_trigger)
2904 AC_SUBST(host_exeext)
2905 AC_SUBST(host_extra_gcc_objs)
2906 AC_SUBST(host_xm_file_list)
2907 AC_SUBST(host_xm_file)
2908 AC_SUBST(host_xm_defines)
2909 AC_SUBST(out_host_hook_obj)
2911 AC_SUBST(lang_opt_files)
2912 AC_SUBST(lang_specs_files)
2913 AC_SUBST(lang_tree_files)
2914 AC_SUBST(local_prefix)
2916 AC_SUBST(objc_boehm_gc)
2918 AC_SUBST(out_object_file)
2919 AC_SUBST(stage_prefix_set_by_configure)
2920 AC_SUBST(quoted_stage_prefix_set_by_configure)
2921 AC_SUBST(symbolic_link)
2922 AC_SUBST(thread_file)
2923 AC_SUBST(tm_file_list)
2925 AC_SUBST(tm_defines)
2926 AC_SUBST(tm_p_file_list)
2929 AC_SUBST(xm_defines)
2930 AC_SUBST(target_alias)
2931 AC_SUBST(c_target_objs)
2932 AC_SUBST(cxx_target_objs)
2933 AC_SUBST(target_cpu_default)
2935 AC_SUBST_FILE(target_overrides)
2936 AC_SUBST_FILE(host_overrides)
2937 AC_SUBST_FILE(language_fragments)
2938 AC_SUBST_FILE(language_hooks)
2940 # Echo that links are built
2941 if test x$host = x$target
2949 if test x$host != x$build
2951 str3=" on a $build system"
2954 if test "x$str2" != x || test "x$str3" != x
2959 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2961 if test "x$str2" != x || test "x$str3" != x
2963 echo " ${str2}${str3}." 1>&2
2966 # Configure the subdirectories
2967 # AC_CONFIG_SUBDIRS($subdirs)
2969 # Create the Makefile
2970 # and configure language subdirectories
2971 AC_OUTPUT($all_outputs,
2973 case x$CONFIG_HEADERS in
2974 xauto-host.h:config.in)
2977 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2978 # bootstrapping and the installation procedure can still use
2979 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2980 # FLAGS_TO_PASS has been modified to solve the problem there.
2981 # This is virtually a duplicate of what happens in configure.lang; we do
2982 # an extra check to make sure this only happens if ln -s can be used.
2983 if test "$symbolic_link" = "ln -s"; then
2984 for d in .. ${subdirs} fixinc ; do
2985 if test $d != ..; then
2986 STARTDIR=`${PWDCMD-pwd}`
2988 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
2991 $symbolic_link ../$t $t 2>/dev/null
2999 symbolic_link='$symbolic_link'