2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
6 #This file is part of GCC.
8 #GCC is free software; you can redistribute it and/or modify it under
9 #the terms of the GNU General Public License as published by the Free
10 #Software Foundation; either version 2, or (at your option) any later
13 #GCC is distributed in the hope that it will be useful, but WITHOUT
14 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 #You should have received a copy of the GNU General Public License
19 #along with GCC; see the file COPYING. If not, write to the Free
20 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 # Initialization and defaults
26 AC_CONFIG_HEADER(auto-host.h:config.in)
33 # Check for bogus environment variables.
34 # Test if LIBRARY_PATH contains the notation for the current directory
35 # since this would lead to problems installing/building glibc.
36 # LIBRARY_PATH contains the current directory if one of the following
38 # - one of the terminals (":" and ";") is the first or last sign
39 # - two terminals occur directly after each other
40 # - the path contains an element with a dot in it
41 AC_MSG_CHECKING(LIBRARY_PATH variable)
43 case ${LIBRARY_PATH} in
44 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
45 library_path_setting="contains current directory"
48 library_path_setting="ok"
52 AC_MSG_RESULT($library_path_setting)
53 if test "$library_path_setting" != "ok"; then
55 *** LIBRARY_PATH shouldn't contain the current directory when
56 *** building gcc. Please change the environment variable
57 *** and run configure again.])
60 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
61 # since this would lead to problems installing/building glibc.
62 # GCC_EXEC_PREFIX contains the current directory if one of the following
64 # - one of the terminals (":" and ";") is the first or last sign
65 # - two terminals occur directly after each other
66 # - the path contains an element with a dot in it
67 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
69 case ${GCC_EXEC_PREFIX} in
70 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
71 gcc_exec_prefix_setting="contains current directory"
74 gcc_exec_prefix_setting="ok"
78 AC_MSG_RESULT($gcc_exec_prefix_setting)
79 if test "$gcc_exec_prefix_setting" != "ok"; then
81 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
82 *** building gcc. Please change the environment variable
83 *** and run configure again.])
86 # Check for additional parameters
90 [ --with-gnu-ld arrange to work with GNU ld.],
91 gnu_ld_flag="$with_gnu_ld",
96 [ --with-ld arrange to use the specified ld (full pathname)],
97 DEFAULT_LINKER="$with_ld")
98 if test x"${DEFAULT_LINKER+set}" = x"set"; then
99 if test ! -x "$DEFAULT_LINKER"; then
100 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
101 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
104 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
105 [Define to enable the use of a default linker.])
110 [ --with-gnu-as arrange to work with GNU as],
111 gas_flag="$with_gnu_as",
115 [ --with-as arrange to use the specified as (full pathname)],
116 DEFAULT_ASSEMBLER="$with_as")
117 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
118 if test ! -x "$DEFAULT_ASSEMBLER"; then
119 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
120 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
123 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
124 [Define to enable the use of a default assembler.])
129 [ --with-stabs arrange to use stabs instead of host debug format],
135 [ --with-elf arrange to use ELF instead of host debug format],
139 # Specify the local prefix
141 AC_ARG_WITH(local-prefix,
142 [ --with-local-prefix=DIR specifies directory to put local include],
143 [case "${withval}" in
144 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
146 *) local_prefix=$with_local_prefix ;;
149 # Default local prefix if it is empty
150 if test x$local_prefix = x; then
151 local_prefix=/usr/local
154 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
155 # passed in by the toplevel make and thus we'd get different behavior
156 # depending on where we built the sources.
158 # Specify the g++ header file directory
159 AC_ARG_WITH(gxx-include-dir,
160 [ --with-gxx-include-dir=DIR
161 specifies directory to put g++ header files],
162 [case "${withval}" in
163 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
165 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
168 if test x${gcc_gxx_include_dir} = x; then
169 if test x${enable_version_specific_runtime_libs} = xyes; then
170 gcc_gxx_include_dir='${libsubdir}/include/g++'
172 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
173 changequote(<<, >>)dnl
174 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
179 # Determine whether or not multilibs are enabled.
180 AC_ARG_ENABLE(multilib,
181 [ --enable-multilib enable library support for multiple ABIs],
182 [], [enable_multilib=yes])
183 AC_SUBST(enable_multilib)
185 # Enable expensive internal checks
186 AC_ARG_ENABLE(checking,
187 [ --enable-checking[=LIST]
188 enable expensive run-time checks. With LIST,
189 enable only specific categories of checks.
190 Categories are: misc,tree,rtl,gc,gcac; default
196 ac_gc_always_collect=
197 case "${enableval}" in
198 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;;
200 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
201 set fnord $enableval; shift
206 misc) ac_checking=1 ;;
207 tree) ac_tree_checking=1 ;;
208 rtl) ac_rtl_checking=1 ;;
209 gc) ac_gc_checking=1 ;;
210 gcac) ac_gc_always_collect=1 ;;
211 *) AC_MSG_ERROR(unknown check category $check) ;;
217 # Enable some checks by default for development versions of GCC
218 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1;])
219 if test x$ac_checking != x ; then
220 AC_DEFINE(ENABLE_CHECKING, 1,
221 [Define if you want more run-time sanity checks. This one gets a grab
222 bag of miscellaneous but relatively cheap checks.])
224 if test x$ac_tree_checking != x ; then
225 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
226 [Define if you want all operations on trees (the basic data
227 structure of the front ends) to be checked for dynamic type safety
228 at runtime. This is moderately expensive.])
230 if test x$ac_rtl_checking != x ; then
231 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
232 [Define if you want all operations on RTL (the basic data structure
233 of the optimizer and back end) to be checked for dynamic type safety
234 at runtime. This is quite expensive.])
236 if test x$ac_gc_checking != x ; then
237 AC_DEFINE(ENABLE_GC_CHECKING, 1,
238 [Define if you want the garbage collector to do object poisoning and
239 other memory allocation checks. This is quite expensive.])
241 if test x$ac_gc_always_collect != x ; then
242 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
243 [Define if you want the garbage collector to operate in maximally
244 paranoid mode, validating the entire heap and collecting garbage at
245 every opportunity. This is extremely expensive.])
250 [ --disable-cpp don't provide a user-visible C preprocessor],
251 [], [enable_cpp=yes])
253 AC_ARG_WITH(cpp_install_dir,
254 [ --with-cpp-install-dir=DIR
255 install the user visible C preprocessor in DIR
256 (relative to PREFIX) as well as PREFIX/bin],
257 [if test x$withval = xyes; then
258 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
259 elif test x$withval != xno; then
260 cpp_install_dir=$withval
263 # Enable Multibyte Characters for C/C++
264 AC_ARG_ENABLE(c-mbchar,
265 [ --enable-c-mbchar enable multibyte characters for C and C++],
266 if test x$enable_c_mbchar != xno; then
267 AC_DEFINE(MULTIBYTE_CHARS, 1,
268 [Define if you want the C and C++ compilers to support multibyte
269 character sets for source code.])
273 # Pass with no value to take the default
274 # Pass with a value to specify a thread package
275 AC_ARG_ENABLE(threads,
276 [ --enable-threads enable thread usage for target GCC
277 --enable-threads=LIB use LIB thread package for target GCC],,
280 enable_threads_flag=$enable_threads
281 # Check if a valid thread package
282 case x${enable_threads_flag} in
285 target_thread_file='single'
289 target_thread_file=''
291 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
292 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
293 target_thread_file=$enable_threads_flag
296 echo "$enable_threads is an unknown thread package" 1>&2
301 AC_ARG_ENABLE(objc-gc,
302 [ --enable-objc-gc enable the use of Boehm's garbage collector with
303 the GNU Objective-C runtime],
304 if test x$enable_objc_gc = xno; then
312 [ --with-dwarf2 force the default debug format to be DWARF 2],
313 dwarf2="$with_dwarf2",
316 AC_ARG_ENABLE(shared,
317 [ --disable-shared don't provide a shared libgcc],
319 case $enable_shared in
323 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
324 for pkg in $enableval; do
325 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
332 ], [enable_shared=yes])
333 AC_SUBST(enable_shared)
335 # Determine the host, build, and target systems
338 # Set program_transform_name
341 # Find the native compiler
344 # autoconf is lame and doesn't give us any substitution variable for this.
345 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
346 NO_MINUS_C_MINUS_O=yes
348 OUTPUT_OPTION='-o $@'
350 AC_SUBST(NO_MINUS_C_MINUS_O)
351 AC_SUBST(OUTPUT_OPTION)
353 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
354 ac_cv_prog_cc_no_long_long,
355 [save_CFLAGS="$CFLAGS"
356 CFLAGS="-Wno-long-long"
357 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
358 ac_cv_prog_cc_no_long_long=no)
359 CFLAGS="$save_CFLAGS"])
361 if test $ac_cv_prog_cc_no_long_long = yes; then
362 strict1_warn="-pedantic -Wno-long-long"
364 AC_SUBST(strict1_warn)
374 # sizeof(char) is 1 by definition.
375 gcc_AC_COMPILE_CHECK_SIZEOF(short)
376 gcc_AC_COMPILE_CHECK_SIZEOF(int)
377 gcc_AC_COMPILE_CHECK_SIZEOF(long)
378 if test $ac_cv_c_long_long = yes; then
379 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
381 if test $ac_cv_c___int64 = yes; then
382 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
387 # If the native compiler is GCC, we can enable warnings even in stage1.
388 # That's useful for people building cross-compilers, or just running a
391 if test "x$GCC" = "xyes"; then
392 warn_cflags='$(GCC_WARN_CFLAGS)'
394 AC_SUBST(warn_cflags)
396 # Stage specific cflags for build.
402 stage1_cflags="-Wa,-J"
408 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
409 # sources; use -no-cpp-precomp to get to GNU cpp.
410 # Apple's GCC has bugs in designated initializer handling, so disable
412 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
415 AC_SUBST(stage1_cflags)
419 AC_MSG_CHECKING([whether a default assembler was specified])
420 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
421 if test x"$gas_flag" = x"no"; then
422 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
424 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
430 AC_MSG_CHECKING([whether a default linker was specified])
431 if test x"${DEFAULT_LINKER+set}" = x"set"; then
432 if test x"$gnu_ld_flag" = x"no"; then
433 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
435 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
441 AC_MSG_CHECKING(for GNU C library)
442 AC_CACHE_VAL(gcc_cv_glibc,
444 [#include <features.h>],[
445 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
446 #error Not a GNU C library system
450 AC_MSG_RESULT($gcc_cv_glibc)
451 if test $gcc_cv_glibc = yes; then
452 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
455 # Find some useful tools
464 gcc_AC_HEADER_STDBOOL
467 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
468 fcntl.h unistd.h sys/file.h sys/time.h \
469 sys/resource.h sys/param.h sys/times.h sys/stat.h \
470 direct.h malloc.h langinfo.h)
472 # Check for thread headers.
473 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
474 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
476 # These tests can't be done till we know if we have limits.h.
478 gcc_AC_C_COMPILE_ENDIAN
479 gcc_AC_C_FLOAT_FORMAT
481 # See if GNAT has been installed
484 # See if we have the mktemp command.
485 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
487 # Do we have a single-tree copy of texinfo?
488 if test -f $srcdir/../texinfo/Makefile.in; then
489 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
490 gcc_cv_prog_makeinfo_modern=yes
491 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
493 # See if makeinfo has been installed and is modern enough
494 # that we can use it.
495 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
496 [GNU texinfo.* \([0-9][0-9.]*\)],
500 if test $gcc_cv_prog_makeinfo_modern = no; then
502 *** Makeinfo is missing or too old.
503 *** Info documentation will not be built.])
506 BUILD_INFO=info AC_SUBST(BUILD_INFO)
509 # Is pod2man recent enough to regenerate manpages?
510 AC_MSG_CHECKING([for recent Pod::Man])
511 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
513 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
520 dnl Don't use AC_PROG_LEX; we insist on flex.
521 dnl LEXLIB is not useful in gcc.
522 if test -f $srcdir/../flex/skel.c; then
523 FLEX='$(objdir)/../flex/flex'
525 AC_CHECK_PROG(FLEX, flex, flex, false)
529 # The -L switch is so bison can find its skeleton file.
530 if test -f $srcdir/../bison/bison.simple; then
531 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
533 AC_CHECK_PROG(BISON, bison, bison, false)
536 # These libraries may be used by collect2.
537 # We may need a special search path to get them linked.
538 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
540 for libs in '' -lld -lmld \
541 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
542 '-L/usr/lib/cmplrs/cc3.11 -lmld'
545 AC_TRY_LINK_FUNC(ldopen,
546 [gcc_cv_collect2_libs="$libs"; break])
549 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
550 case $gcc_cv_collect2_libs in
552 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
554 AC_SUBST(COLLECT2_LIBS)
556 # When building Ada code on Alpha, we need exc_resume which is usually in
557 # -lexc. So test for it.
560 AC_SEARCH_LIBS(exc_resume, exc)
563 AC_SUBST(GNAT_LIBEXC)
565 # See if the stage1 system preprocessor understands the ANSI C
566 # preprocessor stringification operator. (Used by symcat.h.)
569 # Use <inttypes.h> only if it exists,
570 # doesn't clash with <sys/types.h>, and declares intmax_t.
571 AC_MSG_CHECKING(for inttypes.h)
572 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
574 [#include <sys/types.h>
575 #include <inttypes.h>],
577 [gcc_cv_header_inttypes_h=yes],
578 gcc_cv_header_inttypes_h=no)])
579 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
580 if test $gcc_cv_header_inttypes_h = yes; then
581 AC_DEFINE(HAVE_INTTYPES_H, 1,
582 [Define if you have a working <inttypes.h> header file.])
585 dnl Disabled until we have a complete test for buggy enum bitfields.
586 dnl gcc_AC_C_ENUM_BF_UNSIGNED
588 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
589 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
590 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat)
592 AC_CHECK_TYPE(ssize_t, int)
594 # Try to determine the array type of the second argument of getgroups
595 # for the target system (int or gid_t).
597 if test "${target}" = "${build}"; then
598 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
601 # This condition may need some tweaking. It should include all
602 # targets where the array type of the second argument of getgroups
603 # is int and the type of gid_t is not equivalent to int.
604 *-*-sunos* | *-*-ultrix*)
605 TARGET_GETGROUPS_T=int
608 TARGET_GETGROUPS_T=gid_t
612 AC_SUBST(TARGET_GETGROUPS_T)
614 gcc_AC_FUNC_PRINTF_PTR
619 *** UWIN may not be used as a host platform because
620 *** linking with posix.dll is not allowed by the GNU GPL])
623 # Under VMS, vfork works very different than on Unix. The standard test
624 # won't work, and it isn't easily adaptable. It makes more sense to
626 ac_cv_func_vfork_works=yes
630 AC_FUNC_MMAP_ANYWHERE
635 # We will need to find libiberty.h and ansidecl.h
636 saved_CFLAGS="$CFLAGS"
637 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
638 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
639 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
640 fprintf_unlocked strstr errno \
641 malloc realloc calloc free basename getopt clock, , ,[
642 #include "ansidecl.h"
643 #include "system.h"])
645 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
646 #include "ansidecl.h"
648 #ifdef HAVE_SYS_RESOURCE_H
649 #include <sys/resource.h>
653 gcc_AC_CHECK_DECLS(times, , ,[
654 #include "ansidecl.h"
656 #ifdef HAVE_SYS_TIMES_H
657 #include <sys/times.h>
661 # More time-related stuff.
662 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
664 #include "ansidecl.h"
666 #ifdef HAVE_SYS_TIMES_H
667 #include <sys/times.h>
669 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
670 if test $ac_cv_struct_tms = yes; then
671 AC_DEFINE(HAVE_STRUCT_TMS, 1,
672 [Define if <sys/times.h> defines struct tms.])
675 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
676 # revisit after autoconf 2.50.
677 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
679 #include "ansidecl.h"
681 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
682 if test $gcc_cv_type_clock_t = yes; then
683 AC_DEFINE(HAVE_CLOCK_T, 1,
684 [Define if <time.h> defines clock_t.])
687 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
688 CFLAGS="$saved_CFLAGS"
690 # mkdir takes a single argument on some systems.
691 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
701 build_install_headers_dir=install-headers-tar
706 host_truncate_target=
709 # Decode the host machine, then the target machine.
710 # For the host machine, we save the xm_file variable as host_xm_file;
711 # then we decode the target machine and forget everything else
712 # that came from the host machine.
713 for machine in $build $host $target; do
714 . ${srcdir}/config.gcc
717 extra_objs="${host_extra_objs} ${extra_objs}"
719 # Default the target-machine variables that were not explicitly set.
720 if test x"$tm_file" = x
721 then tm_file=$cpu_type/$cpu_type.h; fi
723 if test x"$extra_headers" = x
724 then extra_headers=; fi
726 if test x$md_file = x
727 then md_file=$cpu_type/$cpu_type.md; fi
729 if test x$out_file = x
730 then out_file=$cpu_type/$cpu_type.c; fi
732 if test x"$tmake_file" = x
733 then tmake_file=$cpu_type/t-$cpu_type
736 if test x"$dwarf2" = xyes
737 then tm_file="$tm_file tm-dwarf2.h"
740 if test x$float_format = x
741 then float_format=i64
744 if test $float_format = none
745 then float_h_file=Makefile.in
746 else float_h_file=float-$float_format.h
749 # Handle cpp installation.
750 if test x$enable_cpp != xno
752 tmake_file="$tmake_file t-install-cpp"
755 # Say what files are being used for the output code and MD file.
756 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
757 echo "Using \`$srcdir/config/$md_file' as machine description file."
759 # If any of the xm_file variables contain nonexistent files, warn
760 # about them and drop them.
763 for x in $build_xm_file; do
764 if test -f $srcdir/config/$x
766 else AC_MSG_WARN($srcdir/config/$x does not exist.)
772 for x in $host_xm_file; do
773 if test -f $srcdir/config/$x
775 else AC_MSG_WARN($srcdir/config/$x does not exist.)
781 for x in $xm_file; do
782 if test -f $srcdir/config/$x
784 else AC_MSG_WARN($srcdir/config/$x does not exist.)
790 for f in $tm_file; do
793 if test $count = ax; then
794 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
796 echo "Using the following target machine macro files:"
797 for f in $tm_file; do
798 echo " $srcdir/config/$f"
803 for f in $host_xm_file; do
806 if test $count = a; then
808 elif test $count = ax; then
809 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
811 echo "Using the following host machine macro files:"
812 for f in $host_xm_file; do
813 echo " $srcdir/config/$f"
817 if test "$host_xm_file" != "$build_xm_file"; then
819 for f in $build_xm_file; do
822 if test $count = a; then
824 elif test $count = ax; then
825 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
827 echo "Using the following build machine macro files:"
828 for f in $build_xm_file; do
829 echo " $srcdir/config/$f"
834 if test x$thread_file = x; then
835 if test x$target_thread_file != x; then
836 thread_file=$target_thread_file
842 # auto-host.h is the file containing items generated by autoconf and is
843 # the first file included by config.h.
844 # If host=build, it is correct to have hconfig include auto-host.h
845 # as well. If host!=build, we are in error and need to do more
846 # work to find out the build config parameters.
847 if test x$host = x$build
849 build_auto=auto-host.h
852 # We create a subdir, then run autoconf in the subdir.
853 # To prevent recursion we set host and build for the new
854 # invocation of configure to the build for this invocation
861 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
862 *) realsrcdir=../${srcdir};;
864 saved_CFLAGS="${CFLAGS}"
865 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
866 ${realsrcdir}/configure \
867 --target=$target --host=$build --build=$build
868 CFLAGS="${saved_CFLAGS}"
870 # We just finished tests for the build machine, so rename
871 # the file auto-build.h in the gcc directory.
872 mv auto-host.h ../auto-build.h
875 build_auto=auto-build.h
880 tm_file="${tm_file} defaults.h"
881 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
882 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
883 xm_file="ansidecl.h ${xm_file} ${tm_file}"
885 # Truncate the target if necessary
886 if test x$host_truncate_target != x; then
887 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
890 # Get the version trigger filename from the toplevel
891 if test "${with_gcc_version_trigger+set}" = set; then
892 gcc_version_trigger=$with_gcc_version_trigger
894 gcc_version_trigger=${srcdir}/version.c
897 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
898 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
900 # Compile in configure arguments.
901 if test -f configargs.h ; then
902 # Being re-configured.
903 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
904 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
906 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
908 cat > configargs.h <<EOF
909 /* Generated automatically. */
910 static const char configuration_arguments[] = "$gcc_config_arguments";
911 static const char thread_model[] = "$thread_file";
915 # Internationalization
917 VERSION="$gcc_version"
921 # Enable NLS support by default
923 [ --enable-nls use Native Language Support (default)],
926 # if cross compiling, disable NLS support.
927 # It's not worth the trouble, at least for now.
929 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
930 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
936 # Windows32 Registry support for specifying GCC installation paths.
937 AC_ARG_ENABLE(win32-registry,
938 [ --disable-win32-registry
939 disable lookup of installation paths in the
940 Registry on Windows hosts
941 --enable-win32-registry enable registry lookup (default)
942 --enable-win32-registry=KEY
943 use KEY instead of GCC version as the last portion
944 of the registry key],,)
946 win32 | pe | cygwin* | mingw32* | uwin*)
947 AC_MSG_CHECKING(whether windows registry support is requested)
948 if test "x$enable_win32_registry" != xno; then
949 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
950 [Define to 1 if installation paths should be looked up in Windows32
951 Registry. Ignored on non windows32 hosts.])
953 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
958 # Check if user specified a different registry key.
959 case "x${enable_win32_registry}" in
962 gcc_cv_win32_registry_key="$VERSION"
965 # no registry lookup.
966 gcc_cv_win32_registry_key=''
969 # user-specified key.
970 gcc_cv_win32_registry_key="$enable_win32_registry"
974 if test "x$enable_win32_registry" != xno; then
975 AC_MSG_CHECKING(registry key on windows hosts)
976 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
977 [Define to be the last portion of registry key on windows hosts.])
978 AC_MSG_RESULT($gcc_cv_win32_registry_key)
983 # Get an absolute path to the GCC top-level source directory
989 # Conditionalize the makefile for this host machine.
990 # Make-host contains the concatenation of all host makefile fragments
991 # [there can be more than one]. This file is built by configure.frag.
992 host_overrides=Make-host
994 for f in .. ${host_xmake_file}
996 if test -f ${srcdir}/config/$f
998 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1002 # Conditionalize the makefile for this target machine.
1003 # Make-target contains the concatenation of all host makefile fragments
1004 # [there can be more than one]. This file is built by configure.frag.
1005 target_overrides=Make-target
1007 for f in .. ${tmake_file}
1009 if test -f ${srcdir}/config/$f
1011 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1015 # If the host doesn't support symlinks, modify CC in
1016 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1017 # Otherwise, we can use "CC=$(CC)".
1019 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1021 cc_set_by_configure="\$(CC)"
1022 quoted_cc_set_by_configure="\$(CC)"
1023 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1024 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1027 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1029 symbolic_link="cp -p"
1033 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1034 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1035 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1036 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1040 out_object_file=`basename $out_file .c`.o
1043 for f in $tm_file; do
1046 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1048 tm_file_list="${tm_file_list} $f" ;;
1049 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1054 for f in $tm_p_file; do
1055 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1059 for f in $host_xm_file; do
1062 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1063 auto-host.h | defaults.h )
1064 host_xm_file_list="${host_xm_file_list} $f" ;;
1065 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1070 for f in $build_xm_file; do
1073 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1074 auto-build.h | auto-host.h | defaults.h )
1075 build_xm_file_list="${build_xm_file_list} $f" ;;
1076 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1080 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1081 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1082 CROSS= AC_SUBST(CROSS)
1083 ALL=all.internal AC_SUBST(ALL)
1084 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1085 if test x$host != x$target
1087 CROSS="-DCROSS_COMPILE"
1089 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1092 # If this is a cross-compiler that does not
1093 # have its own set of headers then define
1096 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1097 # This prevents libgcc2 from containing any code which requires libc
1100 if [test x$host != x$target] && [test x$with_headers = x]; then
1101 inhibit_libc=-Dinhibit_libc
1103 if [test x$with_newlib = xyes]; then
1104 inhibit_libc=-Dinhibit_libc
1107 AC_SUBST(inhibit_libc)
1109 # When building gcc with a cross-compiler, we need to adjust things so
1110 # that the generator programs are still built with the native compiler.
1111 # Also, we cannot run fixincludes or fix-header.
1112 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1115 # These are the normal (build=host) settings:
1116 HOST_PREFIX= AC_SUBST(HOST_PREFIX)
1117 HOST_PREFIX_1=ignore- AC_SUBST(HOST_PREFIX_1)
1118 HOST_CC='$(CC)' AC_SUBST(HOST_CC)
1119 HOST_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(HOST_CFLAGS)
1121 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1122 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1124 # And these apply if build != host.
1125 if test x$build != x$host
1128 HOST_PREFIX_1=build-
1129 HOST_CC='$(CC_FOR_BUILD)'
1130 HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1136 # Expand extra_headers to include complete path.
1137 # This substitutes for lots of t-* files.
1139 if test "x$extra_headers" = x
1142 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1143 for file in $extra_headers;
1145 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1149 if test x$use_collect2 = xno; then
1153 # Add a definition of USE_COLLECT2 if system wants one.
1154 if test x$use_collect2 != x
1156 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1157 xm_defines="${xm_defines} USE_COLLECT2"
1160 # If we have gas in the build tree, make a link to it.
1161 if test -f ../gas/Makefile; then
1162 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1165 # If we have nm and objdump in the build tree, make a link to them.
1166 if test -f ../binutils/Makefile; then
1167 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1168 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1171 # If we have ld in the build tree, make a link to it.
1172 if test -f ../ld/Makefile; then
1173 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1176 # Figure out what assembler we will be using.
1177 AC_MSG_CHECKING(what assembler to use)
1179 gcc_cv_gas_major_version=
1180 gcc_cv_gas_minor_version=
1181 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1182 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1183 if test -x "$DEFAULT_ASSEMBLER"; then
1184 gcc_cv_as="$DEFAULT_ASSEMBLER"
1185 elif test -x "$AS"; then
1187 elif test -x as$host_exeext; then
1188 # Build using assembler in the current directory.
1189 gcc_cv_as=./as$host_exeext
1190 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1191 # Single tree build which includes gas.
1192 for f in $gcc_cv_as_bfd_srcdir/configure $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1195 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1197 if test x$gcc_cv_gas_version != x; then
1202 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1203 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1207 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1209 # Search the same directories that the installed compiler will
1210 # search. Else we may find the wrong assembler and lose. If we
1211 # do not find a suitable assembler binary, then try the user's
1214 # Also note we have to check MD_EXEC_PREFIX before checking the
1215 # user's path. Unfortunately, there is no good way to get at the
1216 # value of MD_EXEC_PREFIX here. So we do a brute force search
1217 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1218 # to be fixed as part of the make/configure rewrite too.
1220 if test "x$exec_prefix" = xNONE; then
1221 if test "x$prefix" = xNONE; then
1222 test_prefix=/usr/local
1227 test_prefix=$exec_prefix
1230 # If the loop below does not find an assembler, then use whatever
1231 # one we can find in the users's path.
1233 gcc_cv_as=as$host_exeext
1235 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1236 $test_prefix/lib/gcc-lib/$target \
1237 /usr/lib/gcc/$target/$gcc_version \
1238 /usr/lib/gcc/$target \
1239 $test_prefix/$target/bin/$target/$gcc_version \
1240 $test_prefix/$target/bin \
1245 /bsd43/usr/lib/cmplrs/cc \
1246 /usr/cross64/usr/bin \
1247 /usr/lib/cmplrs/cc \
1248 /sysv/usr/lib/cmplrs/cc \
1249 /svr4/usr/lib/cmplrs/cc \
1252 for dir in $test_dirs; do
1253 if test -f $dir/as$host_exeext; then
1254 gcc_cv_as=$dir/as$host_exeext
1259 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1260 AC_MSG_RESULT("newly built gas")
1262 AC_MSG_RESULT($gcc_cv_as)
1265 # Figure out what linker we will be using.
1266 AC_MSG_CHECKING(what linker to use)
1268 gcc_cv_gld_major_version=
1269 gcc_cv_gld_minor_version=
1270 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1271 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1272 if test -x "$DEFAULT_LINKER"; then
1273 gcc_cv_ld="$DEFAULT_LINKER"
1274 elif test -x "$LD"; then
1276 elif test -x ld$host_exeext; then
1277 # Build using linker in the current directory.
1278 gcc_cv_ld=./ld$host_exeext
1279 elif test -f $gcc_cv_ld_gld_srcdir/configure.in -a -f ../ld/Makefile; then
1280 # Single tree build which includes ld.
1281 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
1284 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1286 if test x$gcc_cv_gld_version != x; then
1291 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1292 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1296 if test "x$gcc_cv_ld" = x -a x$host = x$target; then
1298 # Search the same directories that the installed compiler will
1299 # search. Else we may find the wrong linker and lose. If we
1300 # do not find a suitable linker binary, then try the user's
1303 # Also note we have to check MD_EXEC_PREFIX before checking the
1304 # user's path. Unfortunately, there is no good way to get at the
1305 # value of MD_EXEC_PREFIX here. So we do a brute force search
1306 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1307 # to be fixed as part of the make/configure rewrite too.
1309 if test "x$exec_prefix" = xNONE; then
1310 if test "x$prefix" = xNONE; then
1311 test_prefix=/usr/local
1316 test_prefix=$exec_prefix
1319 # If the loop below does not find an linker, then use whatever
1320 # one we can find in the users's path.
1322 gcc_cv_ld=ld$host_exeext
1324 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1325 $test_prefix/lib/gcc-lib/$target \
1326 /usr/lib/gcc/$target/$gcc_version \
1327 /usr/lib/gcc/$target \
1328 $test_prefix/$target/bin/$target/$gcc_version \
1329 $test_prefix/$target/bin \
1334 /bsd43/usr/lib/cmplrs/cc \
1335 /usr/cross64/usr/bin \
1336 /usr/lib/cmplrs/cc \
1337 /sysv/usr/lib/cmplrs/cc \
1338 /svr4/usr/lib/cmplrs/cc \
1341 for dir in $test_dirs; do
1342 if test -f $dir/ld$host_exeext; then
1343 gcc_cv_ld=$dir/ld$host_exeext
1348 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1349 AC_MSG_RESULT("newly built ld")
1351 AC_MSG_RESULT($gcc_cv_ld)
1354 # Figure out what nm we will be using.
1355 AC_MSG_CHECKING(what nm to use)
1356 if test -x nm$host_exeext; then
1357 gcc_cv_nm=./nm$host_exeext
1358 elif test x$host = x$target; then
1360 gcc_cv_nm=nm$host_exeext
1362 AC_MSG_RESULT($gcc_cv_nm)
1364 # Figure out what objdump we will be using.
1365 AC_MSG_CHECKING(what objdump to use)
1366 if test -x objdump$host_exeext; then
1367 gcc_cv_objdump=./objdump$host_exeext
1368 elif test x$host = x$target; then
1370 gcc_cv_objdump=objdump$host_exeext
1372 AC_MSG_RESULT($gcc_cv_objdump)
1374 # Figure out what assembler alignment features are present.
1375 AC_MSG_CHECKING(assembler alignment features)
1376 gcc_cv_as_alignment_features=none
1377 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1378 # Gas version 2.6 and later support for .balign and .p2align.
1379 # bytes to skip when using .p2align.
1380 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1381 gcc_cv_as_alignment_features=".balign and .p2align"
1382 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1384 # Gas version 2.8 and later support specifying the maximum
1385 # bytes to skip when using .p2align.
1386 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1387 gcc_cv_as_alignment_features=".p2align including maximum skip"
1388 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1390 elif test x$gcc_cv_as != x; then
1391 # Check if we have .balign and .p2align
1392 echo ".balign 4" > conftest.s
1393 echo ".p2align 2" >> conftest.s
1394 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1395 gcc_cv_as_alignment_features=".balign and .p2align"
1396 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1398 rm -f conftest.s conftest.o
1399 # Check if specifying the maximum bytes to skip when
1400 # using .p2align is supported.
1401 echo ".p2align 4,,7" > conftest.s
1402 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1403 gcc_cv_as_alignment_features=".p2align including maximum skip"
1404 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1406 rm -f conftest.s conftest.o
1408 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1410 AC_MSG_CHECKING(assembler subsection support)
1411 gcc_cv_as_subsections=no
1412 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1413 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1414 gcc_cv_as_subsections="working .subsection -1"
1416 elif test x$gcc_cv_as != x; then
1417 # Check if we have .subsection
1418 echo ".subsection 1" > conftest.s
1419 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1420 gcc_cv_as_subsections=".subsection"
1421 if test x$gcc_cv_nm != x; then
1422 cat > conftest.s <<EOF
1423 conftest_label1: .word 0
1425 conftest_label2: .word 0
1428 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1429 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1430 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1431 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1434 gcc_cv_as_subsections="working .subsection -1"
1439 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1441 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1442 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1443 [Define if your assembler supports .subsection and .subsection -1 starts
1444 emitting at the beginning of your section.])
1446 AC_MSG_RESULT($gcc_cv_as_subsections)
1448 AC_MSG_CHECKING(assembler weak support)
1450 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1451 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1452 gcc_cv_as_weak="yes"
1454 elif test x$gcc_cv_as != x; then
1455 # Check if we have .weak
1456 echo " .weak foobar" > conftest.s
1457 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1458 gcc_cv_as_weak="yes"
1460 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1462 if test x"$gcc_cv_as_weak" = xyes; then
1463 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1465 AC_MSG_RESULT($gcc_cv_as_weak)
1467 AC_MSG_CHECKING(assembler hidden support)
1469 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1470 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 10 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1471 gcc_cv_as_hidden="yes"
1473 elif test x$gcc_cv_as != x; then
1474 # Check if we have .hidden
1475 echo " .hidden foobar" > conftest.s
1476 echo "foobar:" >> conftest.s
1477 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1478 gcc_cv_as_hidden="yes"
1480 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1482 if test x"$gcc_cv_as_hidden" = xyes; then
1483 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1484 [Define if your assembler supports .hidden.])
1486 AC_MSG_RESULT($gcc_cv_as_hidden)
1487 libgcc_visibility=$gcc_cv_as_hidden
1488 AC_SUBST(libgcc_visibility)
1490 AC_MSG_CHECKING(assembler leb128 support)
1492 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1493 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 11 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1494 gcc_cv_as_leb128="yes"
1496 elif test x$gcc_cv_as != x; then
1497 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1498 cat > conftest.s <<EOF
1506 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1507 gcc_cv_as_leb128="yes"
1509 # GAS versions before 2.11 do not support uleb128,
1510 # despite appearing to.
1511 # ??? There exists an elf-specific test that will crash
1512 # the assembler. Perhaps it's better to figure out whether
1513 # arbitrary sections are supported and try the test.
1514 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1515 if echo "$as_ver" | grep GNU > /dev/null; then
1517 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1518 as_major=`echo $as_ver | sed 's/\..*//'`
1519 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1521 if test $as_major -eq 2 -a $as_minor -lt 11; then
1522 gcc_cv_as_leb128="no"
1526 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1528 if test x"$gcc_cv_as_leb128" = xyes; then
1529 AC_DEFINE(HAVE_AS_LEB128, 1,
1530 [Define if your assembler supports .uleb128.])
1532 AC_MSG_RESULT($gcc_cv_as_leb128)
1534 AC_MSG_CHECKING(assembler eh_frame optimization)
1535 gcc_cv_as_eh_frame=no
1536 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1537 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1538 gcc_cv_as_eh_frame="yes"
1540 elif test x$gcc_cv_as != x; then
1541 # Check if this is GAS.
1542 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1543 rm -f a.out 2> /dev/null
1544 if echo "$as_ver" | grep GNU > /dev/null; then
1545 # Versions up to and including 2.11.0 may mis-optimize
1546 # .eh_frame data. Try something.
1547 cat > conftest.s <<EOF
1554 .section .eh_frame,"aw",@progbits
1556 .4byte .LECIE1-.LSCIE1
1570 .4byte .LEFDE1-.LASFDE1
1572 .4byte .LASFDE1-__FRAME_BEGIN__
1581 cat > conftest.lit <<EOF
1582 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1583 0010 01000000 12000000 18000000 00000000 ................
1584 0020 08000000 04080000 0044 .........D
1586 cat > conftest.big <<EOF
1587 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1588 0010 00000001 00000012 00000018 00000000 ................
1589 0020 00000008 04000000 0844 .........D
1591 # If the assembler didn't choke, and we can objdump,
1592 # and we got the correct data, then succeed.
1593 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1594 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1595 | tail -3 > conftest.got \
1596 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1597 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1599 gcc_cv_as_eh_frame="yes"
1601 gcc_cv_as_eh_frame="bad"
1602 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1603 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1604 [Define if your assembler mis-optimizes .eh_frame data.])
1610 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1612 AC_MSG_CHECKING(assembler section merging support)
1613 gcc_cv_as_shf_merge=no
1614 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1615 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1616 gcc_cv_as_shf_merge=yes
1618 elif test x$gcc_cv_as != x; then
1619 # Check if we support SHF_MERGE sections
1620 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1621 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1622 gcc_cv_as_shf_merge=yes
1624 rm -f conftest.s conftest.o
1626 if test x"$gcc_cv_as_shf_merge" = xyes; then
1627 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1628 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1630 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1633 # All TARGET_ABI_OSF targets.
1634 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
1635 AC_CACHE_CHECK([assembler supports explicit relocations],
1636 gcc_cv_as_explicit_relocs, [
1637 gcc_cv_as_explicit_relocs=unknown
1638 if test x$gcc_cv_gas_major_version != x \
1639 -a x$gcc_cv_gas_minor_version != x
1641 if test "$gcc_cv_gas_major_version" -eq 2 \
1642 -a "$gcc_cv_gas_minor_version" -ge 12 \
1643 -o "$gcc_cv_gas_major_version" -gt 2; then
1644 gcc_cv_as_explicit_relocs=yes
1646 elif test x$gcc_cv_as != x; then
1647 cat > conftest.s << 'EOF'
1650 extbl $3, $2, $3 !lituse_bytoff!1
1651 ldq $2, a($29) !literal!1
1652 ldq $4, b($29) !literal!2
1653 ldq_u $3, 0($2) !lituse_base!1
1654 ldq $27, f($29) !literal!5
1655 jsr $26, ($27), f !lituse_jsr!5
1656 ldah $29, 0($26) !gpdisp!3
1657 lda $0, c($29) !gprel
1658 ldah $1, d($29) !gprelhigh
1659 lda $1, d($1) !gprellow
1660 lda $29, 0($29) !gpdisp!3
1662 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1663 gcc_cv_as_explicit_relocs=yes
1665 gcc_cv_as_explicit_relocs=no
1667 rm -f conftest.s conftest.o
1670 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
1671 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
1672 [Define if your assembler supports explicit relocations.])
1676 AC_CACHE_CHECK([assembler .register pseudo-op support],
1677 gcc_cv_as_register_pseudo_op, [
1678 gcc_cv_as_register_pseudo_op=unknown
1679 if test x$gcc_cv_as != x; then
1680 # Check if we have .register
1681 echo ".register %g2, #scratch" > conftest.s
1682 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1683 gcc_cv_as_register_pseudo_op=yes
1685 gcc_cv_as_register_pseudo_op=no
1687 rm -f conftest.s conftest.o
1690 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1691 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1692 [Define if your assembler supports .register.])
1695 AC_CACHE_CHECK([assembler supports -relax],
1696 gcc_cv_as_relax_opt, [
1697 gcc_cv_as_relax_opt=unknown
1698 if test x$gcc_cv_as != x; then
1699 # Check if gas supports -relax
1700 echo ".text" > conftest.s
1701 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1702 gcc_cv_as_relax_opt=yes
1704 gcc_cv_as_relax_opt=no
1706 rm -f conftest.s conftest.o
1709 if test "x$gcc_cv_as_relax_opt" = xyes; then
1710 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1711 [Define if your assembler supports -relax option.])
1714 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
1715 gcc_cv_as_sparc_ua_pcrel, [
1716 gcc_cv_as_sparc_ua_pcrel=unknown
1717 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
1718 gcc_cv_as_sparc_ua_pcrel=no
1719 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
1720 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1; then
1721 if $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
1722 gcc_cv_as_sparc_ua_pcrel=yes
1725 rm -f conftest.s conftest.o conftest
1728 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1729 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
1730 [Define if your assembler and linker support unaligned PC relative relocs.])
1735 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1736 gcc_cv_as_flags64, [
1737 if test -n "$gcc_cv_as"; then
1738 echo ".xword foo" > conftest.s
1739 gcc_cv_as_flags64=no
1740 for flag in "-xarch=v9" "-64 -Av9"; do
1741 if $gcc_cv_as $flag -o conftest.o conftest.s \
1742 > /dev/null 2>&1; then
1743 gcc_cv_as_flags64=$flag
1747 rm -f conftest.s conftest.o
1749 if test "$gas" = yes; then
1750 gcc_cv_as_flags64="-64 -Av9"
1752 gcc_cv_as_flags64="-xarch=v9"
1756 if test "x$gcc_cv_as_flags64" = xno; then
1758 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1759 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1762 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1763 [Define if the assembler supports 64bit sparc.])
1766 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1770 if test "x$gcc_cv_as_flags64" != xno; then
1771 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1772 gcc_cv_as_offsetable_lo10, [
1773 gcc_cv_as_offsetable_lo10=unknown
1774 if test "x$gcc_cv_as" != x; then
1775 # Check if assembler has offsetable %lo()
1776 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1777 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1778 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1780 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1781 > /dev/null 2>&1; then
1782 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1783 gcc_cv_as_offsetable_lo10=no
1785 gcc_cv_as_offsetable_lo10=yes
1788 gcc_cv_as_offsetable_lo10=no
1790 rm -f conftest.s conftest.o conftest1.s conftest1.o
1793 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1794 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1795 [Define if your assembler supports offsetable %lo().])
1802 i[34567]86-*-* | x86_64-*-*)
1804 AC_MSG_CHECKING(assembler instructions)
1805 gcc_cv_as_instructions=
1806 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1807 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1808 gcc_cv_as_instructions="filds fists"
1810 elif test x$gcc_cv_as != x; then
1811 set "filds fists" "filds mem; fists mem"
1814 echo "$2" > conftest.s
1815 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1816 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1820 rm -f conftest.s conftest.o
1822 if test x"$gcc_cv_as_instructions" != x; then
1823 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1825 AC_MSG_RESULT($gcc_cv_as_instructions)
1827 AC_MSG_CHECKING(assembler GOTOFF in data directives)
1828 gcc_cv_as_gotoff_in_data=no
1829 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1831 if test "$gcc_cv_gas_major_version" -eq 2 \
1832 -a "$gcc_cv_gas_minor_version" -ge 11 \
1833 -o "$gcc_cv_gas_major_version" -gt 2; then
1834 gcc_cv_as_gotoff_in_data=yes
1836 elif test x$gcc_cv_as != x; then
1837 cat > conftest.s <<EOF
1844 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1845 gcc_cv_as_gotoff_in_data=yes
1848 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
1849 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
1850 [Define true if the assembler supports '.long foo@GOTOFF'.])
1851 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
1855 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1856 gcc_cv_as_dwarf2_debug_line=no
1857 # ??? Not all targets support dwarf2 debug_line, even within a version
1858 # of gas. Moreover, we need to emit a valid instruction to trigger any
1859 # info to the output file. So, as supported targets are added to gas 2.11,
1860 # add some instruction here to (also) show we expect this might work.
1861 # ??? Once 2.11 is released, probably need to add first known working
1862 # version to the per-target configury.
1864 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-*)
1871 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1873 if test "$gcc_cv_gas_major_version" -eq 2 \
1874 -a "$gcc_cv_gas_minor_version" -ge 11 \
1875 -o "$gcc_cv_gas_major_version" -gt 2 \
1876 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1877 && test x"$insn" != x ; then
1878 gcc_cv_as_dwarf2_debug_line="yes"
1880 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1881 echo ' .file 1 "conftest.s"' > conftest.s
1882 echo ' .loc 1 3 0' >> conftest.s
1883 echo " $insn" >> conftest.s
1884 # ??? This fails with non-gnu grep.
1885 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1886 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1887 # The .debug_line file table must be in the exact order that
1888 # we specified the files, since these indices are also used
1889 # by DW_AT_decl_file. Approximate this test by testing if
1890 # the assembler bitches if the same index is assigned twice.
1891 echo ' .file 1 "foo.s"' > conftest.s
1892 echo ' .file 1 "bar.s"' >> conftest.s
1893 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1895 gcc_cv_as_dwarf2_debug_line="no"
1897 gcc_cv_as_dwarf2_debug_line="yes"
1900 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1902 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1903 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1904 [Define if your assembler supports dwarf2 .file/.loc directives,
1905 and preserves file table indices exactly as given.])
1907 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1909 AC_MSG_CHECKING(assembler --gdwarf2 support)
1910 gcc_cv_as_gdwarf2_flag=no
1911 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1913 if test "$gcc_cv_gas_major_version" -eq 2 \
1914 -a "$gcc_cv_gas_minor_version" -ge 11 \
1915 -o "$gcc_cv_gas_major_version" -gt 2 \
1916 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1917 && test x"$insn" != x ; then
1918 gcc_cv_as_gdwarf2_debug_flag="yes"
1920 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1921 echo '' > conftest.s
1922 # ??? This fails with non-gnu grep.
1923 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
1925 gcc_cv_as_gdwarf2_flag="yes"
1927 rm -f conftest.s conftest.o
1929 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
1930 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
1931 [Define if your assembler supports the --gdwarf2 option.])
1933 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
1935 AC_MSG_CHECKING(assembler --gstabs support)
1936 gcc_cv_as_gstabs_flag=no
1937 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1939 if test "$gcc_cv_gas_major_version" -eq 2 \
1940 -a "$gcc_cv_gas_minor_version" -ge 11 \
1941 -o "$gcc_cv_gas_major_version" -gt 2 \
1942 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1943 && test x"$insn" != x ; then
1944 gcc_cv_as_gstabs_debug_flag="yes"
1946 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1947 echo '' > conftest.s
1948 # ??? This fails with non-gnu grep.
1949 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
1950 gcc_cv_as_gstabs_flag="yes"
1952 rm -f conftest.s conftest.o
1954 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
1955 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
1956 [Define if your assembler supports the --gstabs option.])
1958 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
1960 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
1961 gcc_cv_ld_eh_frame_hdr=no
1962 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1963 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
1964 gcc_cv_ld_eh_frame_hdr=yes
1966 elif test x$gcc_cv_ld != x; then
1967 # Check if linker supports --eh-frame-hdr option
1968 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
1969 gcc_cv_ld_eh_frame_hdr=yes
1972 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
1973 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
1974 [Define if your linker supports --eh-frame-hdr option.])
1976 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
1978 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
1979 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
1982 # Figure out what language subdirectories are present.
1983 # Look if the user specified --enable-languages="..."; if not, use
1984 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1986 # NB: embedded tabs in this IF block -- do not untabify
1987 if test x"${enable_languages+set}" != xset; then
1988 if test x"${LANGUAGES+set}" = xset; then
1989 enable_languages="${LANGUAGES}"
1990 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
1993 enable_languages=all
1996 if test x"${enable_languages}" = x ||
1997 test x"${enable_languages}" = xyes;
1999 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2002 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2004 # First scan to see if an enabled language requires some other language.
2005 # We assume that a given config-lang.in will list all the language
2006 # front ends it requires, even if some are required indirectly.
2007 for lang in ${srcdir}/*/config-lang.in ..
2012 # The odd quoting in the next line works around
2013 # an apparent bug in bash 1.12 on linux.
2015 ${srcdir}/[*]/config-lang.in)
2018 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2019 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2020 for other in $this_lang_requires
2022 case ,${enable_languages}, in
2028 enable_languages="$enable_languages,$other"
2038 for lang in ${srcdir}/*/config-lang.in ..
2042 # The odd quoting in the next line works around
2043 # an apparent bug in bash 1.12 on linux.
2045 ${srcdir}/[*]/config-lang.in) ;;
2047 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2048 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2049 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2050 if test "x$lang_alias" = x
2052 echo "$lang doesn't set \$language." 1>&2
2055 case ${build_by_default},${enable_languages}, in
2056 *,$lang_alias,*) add_this_lang=yes ;;
2057 no,*) add_this_lang=no ;;
2058 *,all,*) add_this_lang=yes ;;
2059 *) add_this_lang=no ;;
2061 if test x"${add_this_lang}" = xyes; then
2063 ${srcdir}/ada/config-lang.in)
2064 if test x$have_gnat = xyes ; then
2065 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2069 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2078 # Make gthr-default.h if we have a thread file.
2080 if test $thread_file != single; then
2081 rm -f gthr-default.h
2082 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2083 gthread_flags=-DHAVE_GTHR_DEFAULT
2085 AC_SUBST(gthread_flags)
2087 # Find out what GC implementation we want, or may, use.
2089 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2096 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2101 echo "Using $GGC for garbage collection."
2103 # Use the system's zlib library.
2105 zlibinc="-I\$(srcdir)/../zlib"
2106 AC_ARG_WITH(system-zlib,
2107 [ --with-system-zlib use installed libz],
2114 dnl Very limited version of automake's enable-maintainer-mode
2116 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2117 dnl maintainer-mode is disabled by default
2118 AC_ARG_ENABLE(maintainer-mode,
2119 [ --enable-maintainer-mode
2120 enable make rules and dependencies not useful
2121 (and sometimes confusing) to the casual installer],
2122 maintainer_mode=$enableval,
2125 AC_MSG_RESULT($maintainer_mode)
2127 if test "$maintainer_mode" = "yes"; then
2134 # With Setjmp/Longjmp based exception handling.
2135 AC_ARG_ENABLE(sjlj-exceptions,
2136 [ --enable-sjlj-exceptions
2137 arrange to use setjmp/longjmp exception handling],
2138 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
2139 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
2140 [Define 0/1 to force the choice for exception handling model.])])
2142 # Make empty files to contain the specs and options for each language.
2143 # Then add #include lines to for a compiler that has specs and/or options.
2148 for subdir in . $subdirs
2150 if test -f $srcdir/$subdir/lang-specs.h; then
2151 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2153 if test -f $srcdir/$subdir/lang-options.h; then
2154 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2156 if test -f $srcdir/$subdir/$subdir-tree.def; then
2157 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2161 # These (without "all_") are set in each config-lang.in.
2162 # `language' must be a single word so is spelled singularly.
2167 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc'
2168 # List of language makefile fragments.
2171 # Add the language fragments.
2172 # Languages are added via two mechanisms. Some information must be
2173 # recorded in makefile variables, these are defined in config-lang.in.
2174 # We accumulate them and plug them into the main Makefile.
2175 # The other mechanism is a set of hooks for each of the main targets
2176 # like `clean', `install', etc.
2178 language_fragments="Make-lang"
2179 language_hooks="Make-hooks"
2181 for s in .. $subdirs
2190 . ${srcdir}/$s/config-lang.in
2191 if test "x$language" = x
2193 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2196 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2197 if test -f ${srcdir}/$s/Makefile.in
2198 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2200 all_languages="$all_languages $language"
2201 if test "x$boot_language" = xyes
2203 all_boot_languages="$all_boot_languages $language"
2205 all_compilers="$all_compilers $compilers"
2206 all_stagestuff="$all_stagestuff $stagestuff"
2207 all_outputs="$all_outputs $outputs"
2212 for language in .. $all_languages
2214 if test $language != ".."
2216 check_languages="$check_languages check-$language"
2220 # Since we can't use `::' targets, we link each language in
2221 # with a set of hooks, reached indirectly via lang.${target}.
2225 target_list="all.build all.cross start.encap rest.encap \
2226 info dvi generated-manpages \
2227 install-normal install-common install-info install-man \
2229 mostlyclean clean distclean extraclean maintainer-clean \
2230 stage1 stage2 stage3 stage4"
2231 for t in $target_list
2234 for lang in .. $all_languages
2236 if test $lang != ".."; then
2240 echo "lang.$t: $x" >> Make-hooks
2245 echo "dir ." > .gdbinit
2246 echo "dir ${srcdir}" >> .gdbinit
2247 if test x$gdb_needs_out_file_path = xyes
2249 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2251 if test "x$subdirs" != x; then
2254 echo "dir ${srcdir}/$s" >> .gdbinit
2257 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2259 # Define variables host_canonical and build_canonical
2260 # because some Cygnus local changes in the Makefile depend on them.
2261 build_canonical=${build}
2262 host_canonical=${host}
2264 if test "${host}" != "${target}" ; then
2265 target_subdir=${target_alias}/
2267 AC_SUBST(build_canonical)
2268 AC_SUBST(host_canonical)
2269 AC_SUBST(target_subdir)
2271 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2272 # absolute path for gcc_tooldir based on inserting the number of up-directory
2273 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2274 # $(libsubdir)/@(unlibsubdir) based path.
2275 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2276 # make and thus we'd get different behavior depending on where we built the
2278 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2279 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2281 changequote(<<, >>)dnl
2282 # An explanation of the sed strings:
2283 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2284 # -e 's|/$||' match a trailing forward slash and eliminates it
2285 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2286 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2288 # (*) Note this pattern overwrites the first character of the string
2289 # with a forward slash if one is not already present. This is not a
2290 # problem because the exact names of the sub-directories concerned is
2291 # unimportant, just the number of them matters.
2293 # The practical upshot of these patterns is like this:
2295 # prefix exec_prefix result
2296 # ------ ----------- ------
2298 # /foo/ /foo/bar ../
2299 # /foo /foo/bar/ ../
2300 # /foo/ /foo/bar/ ../
2301 # /foo /foo/bar/ugg ../../
2304 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2305 changequote([, ])dnl
2307 AC_SUBST(gcc_tooldir)
2310 # Find a directory in which to install a shared libgcc.
2312 AC_ARG_ENABLE(version-specific-runtime-libs,
2313 [ --enable-version-specific-runtime-libs
2314 specify that runtime libraries should be
2315 installed in a compiler-specific directory])
2317 AC_ARG_WITH(slibdir,
2318 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2319 slibdir="$with_slibdir",
2320 if test "${enable_version_specific_runtime_libs+set}" = set; then
2321 slibdir='$(libsubdir)'
2322 elif test "$host" != "$target"; then
2323 slibdir='$(build_tooldir)/lib'
2329 # Nothing to do for FLOAT_H, float_format already handled.
2333 # Process the language and host/target makefile fragments.
2334 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2336 # Substitute configuration variables
2338 AC_SUBST(all_boot_languages)
2339 AC_SUBST(all_compilers)
2340 AC_SUBST(all_lang_makefiles)
2341 AC_SUBST(all_languages)
2342 AC_SUBST(all_stagestuff)
2343 AC_SUBST(build_exeext)
2344 AC_SUBST(build_install_headers_dir)
2345 AC_SUBST(build_xm_file_list)
2346 AC_SUBST(build_xm_file)
2347 AC_SUBST(build_xm_defines)
2348 AC_SUBST(check_languages)
2349 AC_SUBST(cc_set_by_configure)
2350 AC_SUBST(quoted_cc_set_by_configure)
2351 AC_SUBST(cpp_install_dir)
2352 AC_SUBST(dep_host_xmake_file)
2353 AC_SUBST(dep_tmake_file)
2354 AC_SUBST(extra_headers_list)
2355 AC_SUBST(extra_objs)
2356 AC_SUBST(extra_parts)
2357 AC_SUBST(extra_passes)
2358 AC_SUBST(extra_programs)
2359 AC_SUBST(float_h_file)
2360 AC_SUBST(gcc_config_arguments)
2361 AC_SUBST(gcc_gxx_include_dir)
2362 AC_SUBST(libstdcxx_incdir)
2363 AC_SUBST(gcc_version)
2364 AC_SUBST(gcc_version_full)
2365 AC_SUBST(gcc_version_trigger)
2366 AC_SUBST(host_exeext)
2367 AC_SUBST(host_extra_gcc_objs)
2368 AC_SUBST(host_xm_file_list)
2369 AC_SUBST(host_xm_file)
2370 AC_SUBST(host_xm_defines)
2372 AC_SUBST(lang_options_files)
2373 AC_SUBST(lang_specs_files)
2374 AC_SUBST(lang_tree_files)
2375 AC_SUBST(local_prefix)
2377 AC_SUBST(objc_boehm_gc)
2379 AC_SUBST(out_object_file)
2380 AC_SUBST(stage_prefix_set_by_configure)
2381 AC_SUBST(quoted_stage_prefix_set_by_configure)
2382 AC_SUBST(symbolic_link)
2383 AC_SUBST(thread_file)
2384 AC_SUBST(tm_file_list)
2386 AC_SUBST(tm_p_file_list)
2389 AC_SUBST(xm_defines)
2390 AC_SUBST(target_alias)
2391 AC_SUBST(c_target_objs)
2392 AC_SUBST(cxx_target_objs)
2393 AC_SUBST(target_cpu_default)
2395 AC_SUBST_FILE(target_overrides)
2396 AC_SUBST_FILE(host_overrides)
2397 AC_SUBST_FILE(language_fragments)
2398 AC_SUBST_FILE(language_hooks)
2400 # Echo that links are built
2401 if test x$host = x$target
2409 if test x$host != x$build
2411 str3=" on a $build system"
2414 if test "x$str2" != x || test "x$str3" != x
2419 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2421 if test "x$str2" != x || test "x$str3" != x
2423 echo " ${str2}${str3}." 1>&2
2426 # Truncate the target if necessary
2427 if test x$host_truncate_target != x; then
2428 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2431 # Configure the subdirectories
2432 # AC_CONFIG_SUBDIRS($subdirs)
2434 # Create the Makefile
2435 # and configure language subdirectories
2436 AC_OUTPUT($all_outputs,
2438 case x$CONFIG_HEADERS in
2439 xauto-host.h:config.in)
2442 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2443 # bootstrapping and the installation procedure can still use
2444 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2445 # FLAGS_TO_PASS has been modified to solve the problem there.
2446 # This is virtually a duplicate of what happens in configure.lang; we do
2447 # an extra check to make sure this only happens if ln -s can be used.
2448 if test "$symbolic_link" = "ln -s"; then
2449 for d in .. ${subdirs} fixinc ; do
2450 if test $d != ..; then
2453 for t in stage1 stage2 stage3 stage4 include
2456 $symbolic_link ../$t $t 2>/dev/null
2462 # Avoid having to add intl to our include paths.
2463 if test -f intl/libintl.h; then
2464 echo creating libintl.h
2465 echo '#include "intl/libintl.h"' >libintl.h
2469 symbolic_link='$symbolic_link'