1 # configure.in for GNU CC
2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
6 #This file is part of GNU CC.
8 #GNU CC is free software; you can redistribute it and/or modify
9 #it under the terms of the GNU General Public License as published by
10 #the Free Software Foundation; either version 2, or (at your option)
13 #GNU CC is distributed in the hope that it will be useful,
14 #but WITHOUT ANY WARRANTY; without even the implied warranty of
15 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 #GNU General Public License for more details.
18 #You should have received a copy of the GNU General Public License
19 #along with GNU CC; see the file COPYING. If not, write to
20 #the Free Software Foundation, 59 Temple Place - Suite 330,
21 #Boston, MA 02111-1307, USA.
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 | 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$enable_objc_gc = xno; then
312 [ --with-dwarf2 force the default debug format to be DWARF2.],
313 dwarf2="$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$pkg" = "Xlibgcc"; then
332 ], [enable_shared=yes])
333 AC_SUBST(enable_shared)
335 # Determine the host, build, and target systems
338 # Find the native compiler
341 # autoconf is lame and doesn't give us any substitution variable for this.
342 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
343 NO_MINUS_C_MINUS_O=yes
345 OUTPUT_OPTION='-o $@'
347 AC_SUBST(NO_MINUS_C_MINUS_O)
348 AC_SUBST(OUTPUT_OPTION)
352 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
353 ac_cv_prog_cc_no_long_long,
354 [save_CFLAGS="$CFLAGS"
355 CFLAGS="-Wno-long-long"
356 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
357 ac_cv_prog_cc_no_long_long=no)
358 CFLAGS="$save_CFLAGS"])
360 if test $ac_cv_prog_cc_no_long_long = yes; then
361 strict1_warn="-pedantic -Wno-long-long"
363 AC_SUBST(strict1_warn)
365 # If the native compiler is GCC, we can enable warnings even in stage1.
366 # That's useful for people building cross-compilers, or just running a
369 if test "x$GCC" = "xyes"; then
370 warn_cflags='$(GCC_WARN_CFLAGS)'
372 AC_SUBST(warn_cflags)
374 # Stage specific cflags for build.
380 stage1_cflags="-Wa,-J"
386 AC_SUBST(stage1_cflags)
390 AC_MSG_CHECKING([whether a default assembler was specified])
391 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
392 if test x"$gas_flag" = x"no"; then
393 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
395 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
401 AC_MSG_CHECKING([whether a default linker was specified])
402 if test x"${DEFAULT_LINKER+set}" = x"set"; then
403 if test x"$gnu_ld_flag" = x"no"; then
404 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
406 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
412 AC_MSG_CHECKING(for GNU C library)
413 AC_CACHE_VAL(gcc_cv_glibc,
415 [#include <features.h>],[
416 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
417 #error Not a GNU C library system
421 AC_MSG_RESULT($gcc_cv_glibc)
422 if test $gcc_cv_glibc = yes; then
423 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
428 # Find some useful tools
440 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
441 fcntl.h unistd.h stab.h sys/file.h sys/time.h \
442 sys/resource.h sys/param.h sys/times.h sys/stat.h \
443 direct.h malloc.h langinfo.h iconv.h stdbool.h)
445 # Check for thread headers.
446 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
447 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
449 # See if GNAT has been installed
450 AC_CHECK_PROG(have_gnat, gnatbind, yes, no)
452 # See if we have the mktemp command.
453 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
455 # Do we have a single-tree copy of texinfo?
456 if test -f $srcdir/../texinfo/Makefile.in; then
457 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
458 gcc_cv_prog_makeinfo_modern=yes
459 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
461 # See if makeinfo has been installed and is modern enough
462 # that we can use it.
463 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
464 [GNU texinfo.* \([0-9][0-9.]*\)],
468 if test $gcc_cv_prog_makeinfo_modern = no; then
470 *** Makeinfo is missing or too old.
471 *** Info documentation will not be built.])
474 BUILD_INFO=info AC_SUBST(BUILD_INFO)
477 # Is pod2man recent enough to regenerate manpages?
478 AC_MSG_CHECKING([for recent Pod::Man])
479 if perl -e 'use 1.10 Pod::Man' >/dev/null 2>&1; then
481 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
488 dnl Don't use AC_PROG_LEX; we insist on flex.
489 dnl LEXLIB is not useful in gcc.
490 if test -f $srcdir/../flex/skel.c; then
491 FLEX='$(objdir)/../flex/flex'
493 AC_CHECK_PROG(FLEX, flex, flex, false)
497 # The -L switch is so bison can find its skeleton file.
498 if test -f $srcdir/../bison/bison.simple; then
499 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
501 AC_CHECK_PROG(BISON, bison, bison, false)
504 # See if the stage1 system preprocessor understands the ANSI C
505 # preprocessor stringification operator.
508 # Use <inttypes.h> only if it exists,
509 # doesn't clash with <sys/types.h>, and declares intmax_t.
510 AC_MSG_CHECKING(for inttypes.h)
511 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
513 [#include <sys/types.h>
514 #include <inttypes.h>],
516 [gcc_cv_header_inttypes_h=yes],
517 gcc_cv_header_inttypes_h=no)])
518 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
519 if test $gcc_cv_header_inttypes_h = yes; then
520 AC_DEFINE(HAVE_INTTYPES_H, 1,
521 [Define if you have a working <inttypes.h> header file.])
525 # Determine if enumerated bitfields are unsigned. ISO C says they can
526 # be either signed or unsigned.
528 AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
529 [AC_TRY_RUN(#include <stdlib.h>
530 enum t { BLAH = 128 } ;
531 struct s_t { enum t member : 8; } s ;
535 if (s.member < 0) exit(1);
538 }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
539 if test $gcc_cv_enum_bf_unsigned = yes; then
540 AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
541 [Define if enumerated bitfields are treated as unsigned values.])
544 AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy \
545 strchr strrchr kill getrlimit setrlimit atoll atoq \
546 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
547 fputs_unlocked getrusage iconv nl_langinfo)
549 AC_CHECK_TYPE(ssize_t, int)
551 # Try to determine the array type of the second argument of getgroups
552 # for the target system (int or gid_t).
554 if test "${target}" = "${build}"; then
555 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
558 # This condition may need some tweaking. It should include all
559 # targets where the array type of the second argument of getgroups
560 # is int and the type of gid_t is not equivalent to int.
561 *-*-sunos* | *-*-ultrix*)
562 TARGET_GETGROUPS_T=int
565 TARGET_GETGROUPS_T=gid_t
569 AC_SUBST(TARGET_GETGROUPS_T)
571 gcc_AC_FUNC_VFPRINTF_DOPRNT
573 gcc_AC_FUNC_PRINTF_PTR
578 *** UWIN may not be used as a host platform because
579 *** linking with posix.dll is not allowed by the GNU GPL])
583 AC_FUNC_MMAP_ANYWHERE
586 # We will need to find libiberty.h and ansidecl.h
587 saved_CFLAGS="$CFLAGS"
588 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
589 gcc_AC_CHECK_DECLS(bcopy \
590 getenv atol sbrk abort atof getcwd getwd \
591 strsignal putc_unlocked fputs_unlocked strstr environ \
592 malloc realloc calloc free basename getopt, , ,[
593 #include "gansidecl.h"
594 #include "system.h"])
596 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
597 #include "gansidecl.h"
599 #ifdef HAVE_SYS_RESOURCE_H
600 #include <sys/resource.h>
604 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
605 CFLAGS="$saved_CFLAGS"
607 # mkdir takes a single argument on some systems.
608 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
618 build_install_headers_dir=install-headers-tar
623 host_truncate_target=
626 # Decode the host machine, then the target machine.
627 # For the host machine, we save the xm_file variable as host_xm_file;
628 # then we decode the target machine and forget everything else
629 # that came from the host machine.
630 for machine in $build $host $target; do
631 . ${srcdir}/config.gcc
634 extra_objs="${host_extra_objs} ${extra_objs}"
636 # Default the target-machine variables that were not explicitly set.
637 if test x"$tm_file" = x
638 then tm_file=$cpu_type/$cpu_type.h; fi
640 if test x"$extra_headers" = x
641 then extra_headers=; fi
643 if test x"$xm_file" = x
644 then xm_file=$cpu_type/xm-$cpu_type.h; fi
646 if test x$md_file = x
647 then md_file=$cpu_type/$cpu_type.md; fi
649 if test x$out_file = x
650 then out_file=$cpu_type/$cpu_type.c; fi
652 if test x"$tmake_file" = x
653 then tmake_file=$cpu_type/t-$cpu_type
656 if test x"$dwarf2" = xyes
657 then tm_file="$tm_file tm-dwarf2.h"
660 if test x$float_format = x
661 then float_format=i64
664 if test $float_format = none
665 then float_h_file=Makefile.in
666 else float_h_file=float-$float_format.h
669 # Handle cpp installation.
670 if test x$enable_cpp != xno
672 tmake_file="$tmake_file t-install-cpp"
675 # Say what files are being used for the output code and MD file.
676 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
677 echo "Using \`$srcdir/config/$md_file' as machine description file."
679 # If any of the xm_file variables contain nonexistent files, warn
680 # about them and drop them. But $cpu/xm-$cpu.h is allowed not to
681 # exist, if we have nothing for it to do.
684 for x in $build_xm_file; do
685 if test -f $srcdir/config/$x
687 elif expr $x : '\([^/]*\)/xm-\1\.h' >/dev/null
689 else AC_MSG_WARN($srcdir/config/$x does not exist.)
695 for x in $host_xm_file; do
696 if test -f $srcdir/config/$x
698 elif expr $x : '\([^/]*\)/xm-\1\.h' >/dev/null
700 else AC_MSG_WARN($srcdir/config/$x does not exist.)
706 for x in $xm_file; do
707 if test -f $srcdir/config/$x
709 elif expr $x : '\([^/]*\)/xm-\1\.h' >/dev/null
711 else AC_MSG_WARN($srcdir/config/$x does not exist.)
718 for f in $tm_file; do
721 if test $count = ax; then
722 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
724 echo "Using the following target machine macro files:"
725 for f in $tm_file; do
726 echo " $srcdir/config/$f"
731 for f in $host_xm_file; do
734 if test $count = a; then
736 elif test $count = ax; then
737 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
739 echo "Using the following host machine macro files:"
740 for f in $host_xm_file; do
741 echo " $srcdir/config/$f"
745 if test "$host_xm_file" != "$build_xm_file"; then
747 for f in $build_xm_file; do
750 if test $count = a; then
752 elif test $count = ax; then
753 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
755 echo "Using the following build machine macro files:"
756 for f in $build_xm_file; do
757 echo " $srcdir/config/$f"
762 if test x$thread_file = x; then
763 if test x$target_thread_file != x; then
764 thread_file=$target_thread_file
770 # auto-host.h is the file containing items generated by autoconf and is
771 # the first file included by config.h.
772 # If host=build, it is correct to have hconfig include auto-host.h
773 # as well. If host!=build, we are in error and need to do more
774 # work to find out the build config parameters.
775 if test x$host = x$build
777 build_auto=auto-host.h
779 # We create a subdir, then run autoconf in the subdir.
780 # To prevent recursion we set host and build for the new
781 # invocation of configure to the build for this invocation
788 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
789 *) realsrcdir=../${srcdir};;
791 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
792 --target=$target --host=$build --build=$build
794 # We just finished tests for the build machine, so rename
795 # the file auto-build.h in the gcc directory.
796 mv auto-host.h ../auto-build.h
799 build_auto=auto-build.h
802 tm_file="${tm_file} defaults.h"
803 host_xm_file="auto-host.h gansidecl.h ${host_xm_file} ${tm_file} hwint.h"
804 build_xm_file="${build_auto} gansidecl.h ${build_xm_file} ${tm_file} hwint.h"
805 xm_file="gansidecl.h ${xm_file} ${tm_file}"
807 # Truncate the target if necessary
808 if test x$host_truncate_target != x; then
809 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
812 # Get the version trigger filename from the toplevel
813 if test "${with_gcc_version_trigger+set}" = set; then
814 gcc_version_trigger=$with_gcc_version_trigger
816 gcc_version_trigger=${srcdir}/version.c
819 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
820 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
822 # Compile in configure arguments.
823 if test -f configargs.h ; then
824 # Being re-configured.
825 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
826 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
828 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
830 cat > configargs.h <<EOF
831 /* Generated automatically. */
832 static const char configuration_arguments[] = "$gcc_config_arguments";
836 # Internationalization
838 VERSION="$gcc_version"
839 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
840 [Define to the name of the distribution.])
841 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
842 [Define to the version of the distribution.])
848 # Enable NLS support by default
850 [ --enable-nls use Native Language Support (default)],
853 # if cross compiling, disable NLS support.
854 # It's not worth the trouble, at least for now.
856 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
857 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
861 # if NLS is enabled, also enable check in po subdir
862 if test $enable_nls = yes; then
871 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
873 # Windows32 Registry support for specifying GCC installation paths.
874 AC_ARG_ENABLE(win32-registry,
875 [ --disable-win32-registry
876 Disable lookup of installation paths in the
877 Registry on Windows hosts.
878 --enable-win32-registry Enable registry lookup (default).
879 --enable-win32-registry=KEY
880 Use KEY instead of GCC version as the last portion
881 of the registry key.],,)
883 AC_MSG_CHECKING(whether windows registry support is requested)
884 if test x$enable_win32_registry != xno; then
885 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
886 [Define to 1 if installation paths should be looked up in Windows32
887 Registry. Ignored on non windows32 hosts.])
893 # Check if user specified a different registry key.
894 case x${enable_win32_registry} in
897 gcc_cv_win32_registry_key="$VERSION"
900 # no registry lookup.
901 gcc_cv_win32_registry_key=''
904 # user-specified key.
905 gcc_cv_win32_registry_key="$enable_win32_registry"
909 if test x$enable_win32_registry != xno; then
910 AC_MSG_CHECKING(registry key on windows hosts)
911 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
912 [Define to be the last portion of registry key on windows hosts.])
913 AC_MSG_RESULT($gcc_cv_win32_registry_key)
916 # Get an absolute path to the GCC top-level source directory
922 # Conditionalize the makefile for this host machine.
923 # Make-host contains the concatenation of all host makefile fragments
924 # [there can be more than one]. This file is built by configure.frag.
925 host_overrides=Make-host
927 for f in .. ${host_xmake_file}
929 if test -f ${srcdir}/config/$f
931 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
935 # Conditionalize the makefile for this target machine.
936 # Make-target contains the concatenation of all host makefile fragments
937 # [there can be more than one]. This file is built by configure.frag.
938 target_overrides=Make-target
940 for f in .. ${tmake_file}
942 if test -f ${srcdir}/config/$f
944 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
948 # If the host doesn't support symlinks, modify CC in
949 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
950 # Otherwise, we can use "CC=$(CC)".
952 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
954 cc_set_by_configure="\$(CC)"
955 quoted_cc_set_by_configure="\$(CC)"
956 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
959 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
961 symbolic_link="cp -p"
965 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
966 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
967 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
971 out_object_file=`basename $out_file .c`.o
974 for f in $tm_file; do
976 gansidecl.h | defaults.h )
977 tm_file_list="${tm_file_list} $f" ;;
978 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
983 for f in $tm_p_file; do
984 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
988 for f in $host_xm_file; do
990 auto-host.h | gansidecl.h | defaults.h | hwint.h )
991 host_xm_file_list="${host_xm_file_list} $f" ;;
992 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
997 for f in $build_xm_file; do
999 auto-build.h | auto-host.h | gansidecl.h | defaults.h | hwint.h )
1000 build_xm_file_list="${build_xm_file_list} $f" ;;
1001 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1005 # Define macro CROSS_COMPILE in compilation
1006 # if this is a cross-compiler.
1007 # Also use all.cross instead of all.internal
1008 # and add cross-make to Makefile.
1009 cross_overrides="/dev/null"
1010 if test x$host != x$target
1012 cross_defines="CROSS=-DCROSS_COMPILE"
1013 cross_overrides="${topdir}/cross-make"
1016 # If this is a cross-compiler that does not
1017 # have its own set of headers then define
1020 # If this is using newlib, then define inhibit_libc in
1021 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1022 # libgcc.a, but that's OK because newlib should have its own version of
1025 if [test x$host != x$target] && [test x$with_headers = x]; then
1026 inhibit_libc=-Dinhibit_libc
1028 if [test x$with_newlib = xyes]; then
1029 inhibit_libc=-Dinhibit_libc
1032 AC_SUBST(inhibit_libc)
1034 # When building gcc with a cross-compiler, we need to fix a few things.
1035 # This must come after cross-make as we want all.build to override
1037 build_overrides="/dev/null"
1038 if test x$build != x$host
1040 build_overrides="${topdir}/build-make"
1043 # Expand extra_headers to include complete path.
1044 # This substitutes for lots of t-* files.
1046 if test "x$extra_headers" = x
1049 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1050 for file in $extra_headers;
1052 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1056 if test x$use_collect2 = xno; then
1060 # Add a definition of USE_COLLECT2 if system wants one.
1061 # Also tell toplev.c what to do.
1062 # This substitutes for lots of t-* files.
1063 if test x$use_collect2 = x
1068 will_use_collect2="collect2"
1069 maybe_use_collect2="-DUSE_COLLECT2"
1072 # If we have gas in the build tree, make a link to it.
1073 if test -f ../gas/Makefile; then
1074 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1077 # If we have nm in the build tree, make a link to it.
1078 if test -f ../binutils/Makefile; then
1079 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1082 # If we have ld in the build tree, make a link to it.
1083 if test -f ../ld/Makefile; then
1084 # if test x$use_collect2 = x; then
1085 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1087 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1091 # Figure out what assembler we will be using.
1092 AC_MSG_CHECKING(what assembler to use)
1094 gcc_cv_gas_major_version=
1095 gcc_cv_gas_minor_version=
1096 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1097 if test -x "$DEFAULT_ASSEMBLER"; then
1098 gcc_cv_as="$DEFAULT_ASSEMBLER"
1099 elif test -x "$AS"; then
1101 elif test -x as$host_exeext; then
1102 # Build using assembler in the current directory.
1103 gcc_cv_as=./as$host_exeext
1104 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1105 # Single tree build which includes gas.
1106 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1109 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1111 if test x$gcc_cv_gas_version != x; then
1116 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1117 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1121 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1123 # Search the same directories that the installed compiler will
1124 # search. Else we may find the wrong assembler and lose. If we
1125 # do not find a suitable assembler binary, then try the user's
1128 # Also note we have to check MD_EXEC_PREFIX before checking the
1129 # user's path. Unfortunately, there is no good way to get at the
1130 # value of MD_EXEC_PREFIX here. So we do a brute force search
1131 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1132 # to be fixed as part of the make/configure rewrite too.
1134 if test "x$exec_prefix" = xNONE; then
1135 if test "x$prefix" = xNONE; then
1136 test_prefix=/usr/local
1141 test_prefix=$exec_prefix
1144 # If the loop below does not find an assembler, then use whatever
1145 # one we can find in the users's path.
1149 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1150 $test_prefix/lib/gcc-lib/$target \
1151 /usr/lib/gcc/$target/$gcc_version \
1152 /usr/lib/gcc/$target \
1153 $test_prefix/$target/bin/$target/$gcc_version \
1154 $test_prefix/$target/bin \
1159 /bsd43/usr/lib/cmplrs/cc \
1160 /usr/cross64/usr/bin \
1161 /usr/lib/cmplrs/cc \
1162 /sysv/usr/lib/cmplrs/cc \
1163 /svr4/usr/lib/cmplrs/cc \
1166 for dir in $test_dirs; do
1167 if test -f $dir/as$host_exeext; then
1168 gcc_cv_as=$dir/as$host_exeext
1173 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1174 AC_MSG_RESULT("newly built gas")
1176 AC_MSG_RESULT($gcc_cv_as)
1179 # Figure out what nm we will be using.
1180 AC_MSG_CHECKING(what nm to use)
1181 if test -x nm$host_exeext; then
1182 gcc_cv_nm=./nm$host_exeext
1183 elif test x$host = x$target; then
1185 gcc_cv_nm=nm$host_exeext
1187 AC_MSG_RESULT($gcc_cv_nm)
1189 # Figure out what assembler alignment features are present.
1190 AC_MSG_CHECKING(assembler alignment features)
1191 gcc_cv_as_alignment_features=none
1192 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1193 # Gas version 2.6 and later support for .balign and .p2align.
1194 # bytes to skip when using .p2align.
1195 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1196 gcc_cv_as_alignment_features=".balign and .p2align"
1197 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1199 # Gas version 2.8 and later support specifying the maximum
1200 # bytes to skip when using .p2align.
1201 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1202 gcc_cv_as_alignment_features=".p2align including maximum skip"
1203 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1205 elif test x$gcc_cv_as != x; then
1206 # Check if we have .balign and .p2align
1207 echo ".balign 4" > conftest.s
1208 echo ".p2align 2" >> conftest.s
1209 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1210 gcc_cv_as_alignment_features=".balign and .p2align"
1211 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1213 rm -f conftest.s conftest.o
1214 # Check if specifying the maximum bytes to skip when
1215 # using .p2align is supported.
1216 echo ".p2align 4,,7" > conftest.s
1217 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1218 gcc_cv_as_alignment_features=".p2align including maximum skip"
1219 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1221 rm -f conftest.s conftest.o
1223 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1225 AC_MSG_CHECKING(assembler subsection support)
1226 gcc_cv_as_subsections=no
1227 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1228 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1229 gcc_cv_as_subsections="working .subsection -1"
1231 elif test x$gcc_cv_as != x; then
1232 # Check if we have .subsection
1233 echo ".subsection 1" > conftest.s
1234 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1235 gcc_cv_as_subsections=".subsection"
1236 if test x$gcc_cv_nm != x; then
1237 cat > conftest.s <<EOF
1238 conftest_label1: .word 0
1240 conftest_label2: .word 0
1243 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1244 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1245 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1246 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1249 gcc_cv_as_subsections="working .subsection -1"
1254 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1256 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1257 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1258 [Define if your assembler supports .subsection and .subsection -1 starts
1259 emitting at the beginning of your section.])
1261 AC_MSG_RESULT($gcc_cv_as_subsections)
1263 AC_MSG_CHECKING(assembler weak support)
1265 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1266 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1267 gcc_cv_as_weak="yes"
1269 elif test x$gcc_cv_as != x; then
1270 # Check if we have .weak
1271 echo " .weak foobar" > conftest.s
1272 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1273 gcc_cv_as_weak="yes"
1275 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1277 if test x"$gcc_cv_as_weak" = xyes; then
1278 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1280 AC_MSG_RESULT($gcc_cv_as_weak)
1282 AC_MSG_CHECKING(assembler hidden support)
1284 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1285 if test "$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
1286 gcc_cv_as_hidden="yes"
1288 elif test x$gcc_cv_as != x; then
1289 # Check if we have .hidden
1290 echo " .hidden foobar" > conftest.s
1291 echo "foobar:" >> conftest.s
1292 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1293 gcc_cv_as_hidden="yes"
1295 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1297 if test x"$gcc_cv_as_hidden" = xyes; then
1298 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1299 [Define if your assembler supports .hidden.])
1301 AC_MSG_RESULT($gcc_cv_as_hidden)
1303 AC_MSG_CHECKING(assembler leb128 support)
1305 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1306 if test "$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
1307 gcc_cv_as_leb128="yes"
1309 elif test x$gcc_cv_as != x; then
1310 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1311 cat > conftest.s <<EOF
1319 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1320 gcc_cv_as_leb128="yes"
1322 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1324 if test x"$gcc_cv_as_leb128" = xyes; then
1325 AC_DEFINE(HAVE_AS_LEB128, 1,
1326 [Define if your assembler supports .uleb128.])
1328 AC_MSG_RESULT($gcc_cv_as_leb128)
1332 AC_CACHE_CHECK([assembler .register pseudo-op support],
1333 gcc_cv_as_register_pseudo_op, [
1334 gcc_cv_as_register_pseudo_op=unknown
1335 if test x$gcc_cv_as != x; then
1336 # Check if we have .register
1337 echo ".register %g2, #scratch" > conftest.s
1338 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1339 gcc_cv_as_register_pseudo_op=yes
1341 gcc_cv_as_register_pseudo_op=no
1343 rm -f conftest.s conftest.o
1346 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1347 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1348 [Define if your assembler supports .register.])
1351 AC_CACHE_CHECK([assembler supports -relax],
1352 gcc_cv_as_relax_opt, [
1353 gcc_cv_as_relax_opt=unknown
1354 if test x$gcc_cv_as != x; then
1355 # Check if gas supports -relax
1356 echo ".text" > conftest.s
1357 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1358 gcc_cv_as_relax_opt=yes
1360 gcc_cv_as_relax_opt=no
1362 rm -f conftest.s conftest.o
1365 if test "x$gcc_cv_as_relax_opt" = xyes; then
1366 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1367 [Define if your assembler supports -relax option.])
1372 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1373 gcc_cv_as_flags64, [
1374 if test -n "$gcc_cv_as"; then
1375 echo ".xword foo" > conftest.s
1376 gcc_cv_as_flags64=no
1377 for flag in "-xarch=v9" "-64 -Av9"; do
1378 if $gcc_cv_as $flag -o conftest.o conftest.s \
1379 > /dev/null 2>&1; then
1380 gcc_cv_as_flags64=$flag
1384 rm -f conftest.s conftest.o
1386 if test "$gas" = yes; then
1387 gcc_cv_as_flags64="-64 -Av9"
1389 gcc_cv_as_flags64="-xarch=v9"
1393 if test "x$gcc_cv_as_flags64" = xno; then
1395 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1396 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1399 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1400 [Define if the assembler supports 64bit sparc.])
1403 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1407 if test "x$gcc_cv_as_flags64" != xno; then
1408 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1409 gcc_cv_as_offsetable_lo10, [
1410 gcc_cv_as_offsetable_lo10=unknown
1411 if test "x$gcc_cv_as" != x; then
1412 # Check if assembler has offsetable %lo()
1413 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1414 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1415 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1417 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1418 > /dev/null 2>&1; then
1419 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1420 gcc_cv_as_offsetable_lo10=no
1422 gcc_cv_as_offsetable_lo10=yes
1425 gcc_cv_as_offsetable_lo10=no
1427 rm -f conftest.s conftest.o conftest1.s conftest1.o
1430 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1431 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1432 [Define if your assembler supports offsetable %lo().])
1440 AC_MSG_CHECKING(assembler instructions)
1441 gcc_cv_as_instructions=
1442 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1443 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1444 gcc_cv_as_instructions="filds fists"
1446 elif test x$gcc_cv_as != x; then
1447 set "filds fists" "filds mem; fists mem"
1450 echo "$2" > conftest.s
1451 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1452 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1456 rm -f conftest.s conftest.o
1458 if test x"$gcc_cv_as_instructions" != x; then
1459 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1461 AC_MSG_RESULT($gcc_cv_as_instructions)
1465 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1466 gcc_cv_as_dwarf2_debug_line=no
1467 # ??? Not all targets support dwarf2 debug_line, even within a version
1468 # of gas. Moreover, we need to emit a valid instruction to trigger any
1469 # info to the output file. So, as supported targets are added to gas 2.11,
1470 # add some instruction here to (also) show we expect this might work.
1471 # ??? Once 2.11 is released, probably need to add first known working
1472 # version to the per-target configury.
1474 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-*)
1481 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1483 if test "$gcc_cv_gas_major_version" -eq 2 \
1484 -a "$gcc_cv_gas_minor_version" -ge 11 \
1485 -o "$gcc_cv_gas_major_version" -gt 2 \
1486 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1487 && test x"$insn" != x ; then
1488 gcc_cv_as_dwarf2_debug_line="yes"
1490 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1491 echo ' .file 0 "conftest.s"' > conftest.s
1492 echo ' .loc 0 3 0' >> conftest.s
1493 echo " $insn" >> conftest.s
1494 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1495 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1496 gcc_cv_as_dwarf2_debug_line="yes"
1498 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1500 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1501 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1502 [Define if your assembler supports dwarf2 .file/.loc directives.])
1504 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1506 # Figure out what language subdirectories are present.
1507 # Look if the user specified --enable-languages="..."; if not, use
1508 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1510 if test x"${enable_languages+set}" != xset; then
1511 if test x"${LANGUAGES+set}" = xset; then
1512 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1514 enable_languages=all
1517 if test x"${enable_languages}" = x; then
1518 AC_MSG_ERROR([--enable-languages needs at least one argument])
1522 # First scan to see if an enabled language requires some other language.
1523 # We assume that a given config-lang.in will list all the language
1524 # front ends it requires, even if some are required indirectly.
1525 for lang in ${srcdir}/*/config-lang.in ..
1530 # The odd quoting in the next line works around
1531 # an apparent bug in bash 1.12 on linux.
1533 ${srcdir}/[*]/config-lang.in)
1536 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1537 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
1538 for other in $this_lang_requires
1540 case ,${enable_languages}, in
1546 enable_languages="$enable_languages,$other"
1556 for lang in ${srcdir}/*/config-lang.in ..
1560 # The odd quoting in the next line works around
1561 # an apparent bug in bash 1.12 on linux.
1563 ${srcdir}/[*]/config-lang.in) ;;
1565 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1566 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1567 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1568 if test "x$lang_alias" = x
1570 echo "$lang doesn't set \$language." 1>&2
1573 case ${build_by_default},${enable_languages}, in
1574 *,$lang_alias,*) add_this_lang=yes ;;
1575 no,*) add_this_lang=no ;;
1576 *,all,*) add_this_lang=yes ;;
1577 *) add_this_lang=no ;;
1579 if test x"${add_this_lang}" = xyes; then
1581 ${srcdir}/ada/config-lang.in)
1582 if test x$have_gnat = xyes ; then
1583 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1587 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1596 # Make gthr-default.h if we have a thread file.
1598 if test $thread_file != single; then
1599 rm -f gthr-default.h
1600 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1601 gthread_flags=-DHAVE_GTHR_DEFAULT
1603 AC_SUBST(gthread_flags)
1605 # Find out what GC implementation we want, or may, use.
1607 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1608 with the compiler.],
1614 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1619 echo "Using $GGC for garbage collection."
1621 # Use the system's zlib library.
1623 zlibinc="-I\$(srcdir)/../zlib"
1624 AC_ARG_WITH(system-zlib,
1625 [ --with-system-zlib use installed libz],
1632 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, 1,
1633 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1635 dnl Very limited version of automake's enable-maintainer-mode
1637 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1638 dnl maintainer-mode is disabled by default
1639 AC_ARG_ENABLE(maintainer-mode,
1640 [ --enable-maintainer-mode enable make rules and dependencies not useful
1641 (and sometimes confusing) to the casual installer],
1642 maintainer_mode=$enableval,
1645 AC_MSG_RESULT($maintainer_mode)
1647 if test "$maintainer_mode" = "yes"; then
1654 # Make empty files to contain the specs and options for each language.
1655 # Then add #include lines to for a compiler that has specs and/or options.
1660 rm -f specs.h options.h gencheck.h
1661 touch specs.h options.h gencheck.h
1662 for subdir in . $subdirs
1664 if test -f $srcdir/$subdir/lang-specs.h; then
1665 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1666 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1668 if test -f $srcdir/$subdir/lang-options.h; then
1669 echo "#include \"$subdir/lang-options.h\"" >>options.h
1670 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1672 if test -f $srcdir/$subdir/$subdir-tree.def; then
1673 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1674 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1678 # These (without "all_") are set in each config-lang.in.
1679 # `language' must be a single word so is spelled singularly.
1685 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1686 # List of language makefile fragments.
1691 # Add the language fragments.
1692 # Languages are added via two mechanisms. Some information must be
1693 # recorded in makefile variables, these are defined in config-lang.in.
1694 # We accumulate them and plug them into the main Makefile.
1695 # The other mechanism is a set of hooks for each of the main targets
1696 # like `clean', `install', etc.
1698 language_fragments="Make-lang"
1699 language_hooks="Make-hooks"
1701 for s in .. $subdirs
1713 . ${srcdir}/$s/config-lang.in
1714 if test "x$language" = x
1716 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1719 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1720 if test -f ${srcdir}/$s/Makefile.in
1721 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1723 all_languages="$all_languages $language"
1724 if test "x$boot_language" = xyes
1726 all_boot_languages="$all_boot_languages $language"
1728 all_compilers="$all_compilers $compilers"
1729 all_stagestuff="$all_stagestuff $stagestuff"
1730 all_diff_excludes="$all_diff_excludes $diff_excludes"
1731 all_headers="$all_headers $headers"
1732 all_outputs="$all_outputs $outputs"
1733 all_lib2funcs="$all_lib2funcs $lib2funcs"
1738 for language in .. $all_languages
1740 if test $language != ".."
1742 check_languages="$check_languages check-$language"
1746 # Since we can't use `::' targets, we link each language in
1747 # with a set of hooks, reached indirectly via lang.${target}.
1751 target_list="all.build all.cross start.encap rest.encap \
1753 install-normal install-common install-info install-man \
1755 mostlyclean clean distclean extraclean maintainer-clean \
1756 stage1 stage2 stage3 stage4"
1757 for t in $target_list
1760 for lang in .. $all_languages
1762 if test $lang != ".."; then
1766 echo "lang.$t: $x" >> Make-hooks
1771 echo "dir ." > .gdbinit
1772 echo "dir ${srcdir}" >> .gdbinit
1773 if test x$gdb_needs_out_file_path = xyes
1775 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1777 if test "x$subdirs" != x; then
1780 echo "dir ${srcdir}/$s" >> .gdbinit
1783 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
1785 # Define variables host_canonical and build_canonical
1786 # because some Cygnus local changes in the Makefile depend on them.
1787 build_canonical=${build}
1788 host_canonical=${host}
1790 if test "${host}" != "${target}" ; then
1791 target_subdir=${target}/
1793 AC_SUBST(build_canonical)
1794 AC_SUBST(host_canonical)
1795 AC_SUBST(target_subdir)
1797 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1798 # absolute path for gcc_tooldir based on inserting the number of up-directory
1799 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1800 # $(libsubdir)/@(unlibsubdir) based path.
1801 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1802 # make and thus we'd get different behavior depending on where we built the
1804 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1805 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1807 changequote(<<, >>)dnl
1808 # An explanation of the sed strings:
1809 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1810 # -e 's|/$||' match a trailing forward slash and eliminates it
1811 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1812 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1814 # (*) Note this pattern overwrites the first character of the string
1815 # with a forward slash if one is not already present. This is not a
1816 # problem because the exact names of the sub-directories concerned is
1817 # unimportant, just the number of them matters.
1819 # The practical upshot of these patterns is like this:
1821 # prefix exec_prefix result
1822 # ------ ----------- ------
1824 # /foo/ /foo/bar ../
1825 # /foo /foo/bar/ ../
1826 # /foo/ /foo/bar/ ../
1827 # /foo /foo/bar/ugg ../../
1830 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1831 changequote([, ])dnl
1833 AC_SUBST(gcc_tooldir)
1836 # Find a directory in which to install a shared libgcc.
1838 AC_ARG_ENABLE(version-specific-runtime-libs,
1839 [ --enable-version-specific-runtime-libs Specify that runtime libraries shou
1840 ld be installed in a compiler-specific directory ])
1842 AC_ARG_WITH(slibdir,
1843 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
1844 slibdir="$with_slibdir",
1845 if test "${enable_version_specific_runtime_libs+set}" = set; then
1846 slibdir='$(libsubdir)'
1847 elif test "$host" != "$target"; then
1848 slibdir='$(build_tooldir)/lib'
1854 # Nothing to do for FLOAT_H, float_format already handled.
1858 # Process the language and host/target makefile fragments.
1859 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1861 # Substitute configuration variables
1863 AC_SUBST(all_boot_languages)
1864 AC_SUBST(all_compilers)
1865 AC_SUBST(all_diff_excludes)
1866 AC_SUBST(all_headers)
1867 AC_SUBST(all_lang_makefiles)
1868 AC_SUBST(all_languages)
1869 AC_SUBST(all_lib2funcs)
1870 AC_SUBST(all_stagestuff)
1871 AC_SUBST(build_exeext)
1872 AC_SUBST(build_install_headers_dir)
1873 AC_SUBST(build_xm_file_list)
1874 AC_SUBST(build_xm_file)
1875 AC_SUBST(build_xm_defines)
1876 AC_SUBST(check_languages)
1877 AC_SUBST(cc_set_by_configure)
1878 AC_SUBST(quoted_cc_set_by_configure)
1879 AC_SUBST(cpp_install_dir)
1880 AC_SUBST(dep_host_xmake_file)
1881 AC_SUBST(dep_tmake_file)
1882 AC_SUBST(extra_c_flags)
1883 AC_SUBST(extra_headers_list)
1884 AC_SUBST(extra_objs)
1885 AC_SUBST(extra_parts)
1886 AC_SUBST(extra_passes)
1887 AC_SUBST(extra_programs)
1888 AC_SUBST(float_h_file)
1889 AC_SUBST(gcc_config_arguments)
1890 AC_SUBST(gcc_gxx_include_dir)
1891 AC_SUBST(libstdcxx_incdir)
1892 AC_SUBST(gcc_version)
1893 AC_SUBST(gcc_version_full)
1894 AC_SUBST(gcc_version_trigger)
1895 AC_SUBST(host_exeext)
1896 AC_SUBST(host_extra_gcc_objs)
1897 AC_SUBST(host_xm_file_list)
1898 AC_SUBST(host_xm_file)
1899 AC_SUBST(host_xm_defines)
1901 AC_SUBST(lang_options_files)
1902 AC_SUBST(lang_specs_files)
1903 AC_SUBST(lang_tree_files)
1904 AC_SUBST(local_prefix)
1905 AC_SUBST(maybe_use_collect2)
1907 AC_SUBST(objc_boehm_gc)
1909 AC_SUBST(out_object_file)
1910 AC_SUBST(stage_prefix_set_by_configure)
1911 AC_SUBST(symbolic_link)
1912 AC_SUBST(thread_file)
1913 AC_SUBST(tm_file_list)
1915 AC_SUBST(tm_p_file_list)
1918 AC_SUBST(xm_defines)
1919 AC_SUBST(will_use_collect2)
1920 AC_SUBST(c_target_objs)
1921 AC_SUBST(cxx_target_objs)
1922 AC_SUBST(target_cpu_default)
1924 AC_SUBST_FILE(target_overrides)
1925 AC_SUBST_FILE(host_overrides)
1926 AC_SUBST(cross_defines)
1927 AC_SUBST_FILE(cross_overrides)
1928 AC_SUBST_FILE(build_overrides)
1929 AC_SUBST_FILE(language_fragments)
1930 AC_SUBST_FILE(language_hooks)
1932 # Echo that links are built
1933 if test x$host = x$target
1941 if test x$host != x$build
1943 str3=" on a $build system"
1946 if test "x$str2" != x || test "x$str3" != x
1951 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1953 if test "x$str2" != x || test "x$str3" != x
1955 echo " ${str2}${str3}." 1>&2
1958 # Truncate the target if necessary
1959 if test x$host_truncate_target != x; then
1960 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1963 # Configure the subdirectories
1964 # AC_CONFIG_SUBDIRS($subdirs)
1966 # Create the Makefile
1967 # and configure language subdirectories
1968 AC_OUTPUT($all_outputs,
1970 case x$CONFIG_HEADERS in
1971 xauto-host.h:config.in)
1974 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1975 # bootstrapping and the installation procedure can still use
1976 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
1977 # FLAGS_TO_PASS has been modified to solve the problem there.
1978 # This is virtually a duplicate of what happens in configure.lang; we do
1979 # an extra check to make sure this only happens if ln -s can be used.
1980 if test "$symbolic_link" = "ln -s"; then
1981 for d in .. ${subdirs} ; do
1982 if test $d != ..; then
1985 for t in stage1 stage2 stage3 stage4 include
1988 $symbolic_link ../$t $t 2>/dev/null
1994 # Avoid having to add intl to our include paths.
1995 if test -f intl/libintl.h; then
1996 echo creating libintl.h
1997 echo '#include "intl/libintl.h"' >libintl.h
2004 target_alias='${target_alias}'
2006 subdirs='${subdirs}'
2007 symbolic_link='${symbolic_link}'
2008 program_transform_set='${program_transform_set}'
2009 program_transform_name='${program_transform_name}'
2010 dep_host_xmake_file='${dep_host_xmake_file}'
2011 host_xmake_file='${host_xmake_file}'
2012 dep_tmake_file='${dep_tmake_file}'
2013 tmake_file='${tmake_file}'
2014 thread_file='${thread_file}'
2015 gcc_config_arguments='${gcc_config_arguments}'
2016 gcc_version='${gcc_version}'
2017 gcc_version_full='${gcc_version_full}'
2018 gcc_version_trigger='${gcc_version_trigger}'
2019 local_prefix='${local_prefix}'
2020 build_install_headers_dir='${build_install_headers_dir}'
2021 build_exeext='${build_exeext}'
2022 host_exeext='${host_exeext}'
2023 out_file='${out_file}'
2024 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
2025 SET_MAKE='${SET_MAKE}'
2026 target_list='${target_list}'
2027 target_overrides='${target_overrides}'
2028 host_overrides='${host_overrides}'
2029 cross_defines='${cross_defines}'
2030 cross_overrides='${cross_overrides}'
2031 build_overrides='${build_overrides}'
2032 cpp_install_dir='${cpp_install_dir}'