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)
350 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
351 ac_cv_prog_cc_no_long_long,
352 [save_CFLAGS="$CFLAGS"
353 CFLAGS="-Wno-long-long"
354 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
355 ac_cv_prog_cc_no_long_long=no)
356 CFLAGS="$save_CFLAGS"])
358 if test $ac_cv_prog_cc_no_long_long = yes; then
359 strict1_warn="-pedantic -Wno-long-long"
361 AC_SUBST(strict1_warn)
370 # sizeof(char) is 1 by definition.
371 gcc_AC_COMPILE_CHECK_SIZEOF(short)
372 gcc_AC_COMPILE_CHECK_SIZEOF(int)
373 gcc_AC_COMPILE_CHECK_SIZEOF(long)
374 if test $ac_cv_c_long_long = yes; then
375 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
377 if test $ac_cv_c___int64 = yes; then
378 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
383 # If the native compiler is GCC, we can enable warnings even in stage1.
384 # That's useful for people building cross-compilers, or just running a
387 if test "x$GCC" = "xyes"; then
388 warn_cflags='$(GCC_WARN_CFLAGS)'
390 AC_SUBST(warn_cflags)
392 # Stage specific cflags for build.
398 stage1_cflags="-Wa,-J"
404 AC_SUBST(stage1_cflags)
408 AC_MSG_CHECKING([whether a default assembler was specified])
409 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
410 if test x"$gas_flag" = x"no"; then
411 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
413 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
419 AC_MSG_CHECKING([whether a default linker was specified])
420 if test x"${DEFAULT_LINKER+set}" = x"set"; then
421 if test x"$gnu_ld_flag" = x"no"; then
422 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
424 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
430 AC_MSG_CHECKING(for GNU C library)
431 AC_CACHE_VAL(gcc_cv_glibc,
433 [#include <features.h>],[
434 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
435 #error Not a GNU C library system
439 AC_MSG_RESULT($gcc_cv_glibc)
440 if test $gcc_cv_glibc = yes; then
441 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
444 # Find some useful tools
455 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
456 fcntl.h unistd.h stab.h sys/file.h sys/time.h \
457 sys/resource.h sys/param.h sys/times.h sys/stat.h \
458 direct.h malloc.h langinfo.h iconv.h stdbool.h)
460 # Check for thread headers.
461 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
462 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
464 # These tests can't be done till we know if we have limits.h.
466 gcc_AC_C_COMPILE_ENDIAN
467 gcc_AC_C_FLOAT_FORMAT
469 # See if GNAT has been installed
470 AC_CHECK_PROG(have_gnat, gnatbind, yes, no)
472 # See if we have the mktemp command.
473 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
475 # Do we have a single-tree copy of texinfo?
476 if test -f $srcdir/../texinfo/Makefile.in; then
477 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
478 gcc_cv_prog_makeinfo_modern=yes
479 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
481 # See if makeinfo has been installed and is modern enough
482 # that we can use it.
483 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
484 [GNU texinfo.* \([0-9][0-9.]*\)],
488 if test $gcc_cv_prog_makeinfo_modern = no; then
490 *** Makeinfo is missing or too old.
491 *** Info documentation will not be built.])
494 BUILD_INFO=info AC_SUBST(BUILD_INFO)
497 # Is pod2man recent enough to regenerate manpages?
498 AC_MSG_CHECKING([for recent Pod::Man])
499 if perl -e 'use 1.10 Pod::Man' >/dev/null 2>&1; then
501 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
508 dnl Don't use AC_PROG_LEX; we insist on flex.
509 dnl LEXLIB is not useful in gcc.
510 if test -f $srcdir/../flex/skel.c; then
511 FLEX='$(objdir)/../flex/flex'
513 AC_CHECK_PROG(FLEX, flex, flex, false)
517 # The -L switch is so bison can find its skeleton file.
518 if test -f $srcdir/../bison/bison.simple; then
519 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
521 AC_CHECK_PROG(BISON, bison, bison, false)
524 # See if the stage1 system preprocessor understands the ANSI C
525 # preprocessor stringification operator. (Used by symcat.h.)
528 # Use <inttypes.h> only if it exists,
529 # doesn't clash with <sys/types.h>, and declares intmax_t.
530 AC_MSG_CHECKING(for inttypes.h)
531 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
533 [#include <sys/types.h>
534 #include <inttypes.h>],
536 [gcc_cv_header_inttypes_h=yes],
537 gcc_cv_header_inttypes_h=no)])
538 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
539 if test $gcc_cv_header_inttypes_h = yes; then
540 AC_DEFINE(HAVE_INTTYPES_H, 1,
541 [Define if you have a working <inttypes.h> header file.])
544 dnl Disabled until we have a complete test for buggy enum bitfields.
545 dnl gcc_AC_C_ENUM_BF_UNSIGNED
547 AC_CHECK_FUNCS(strtoul bsearch popen \
548 strchr strrchr kill getrlimit setrlimit atoll atoq \
549 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
550 fputs_unlocked getrusage iconv nl_langinfo)
552 AC_CHECK_TYPE(ssize_t, int)
554 # Try to determine the array type of the second argument of getgroups
555 # for the target system (int or gid_t).
557 if test "${target}" = "${build}"; then
558 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
561 # This condition may need some tweaking. It should include all
562 # targets where the array type of the second argument of getgroups
563 # is int and the type of gid_t is not equivalent to int.
564 *-*-sunos* | *-*-ultrix*)
565 TARGET_GETGROUPS_T=int
568 TARGET_GETGROUPS_T=gid_t
572 AC_SUBST(TARGET_GETGROUPS_T)
574 gcc_AC_FUNC_VFPRINTF_DOPRNT
576 gcc_AC_FUNC_PRINTF_PTR
581 *** UWIN may not be used as a host platform because
582 *** linking with posix.dll is not allowed by the GNU GPL])
586 AC_FUNC_MMAP_ANYWHERE
589 # We will need to find libiberty.h and ansidecl.h
590 saved_CFLAGS="$CFLAGS"
591 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
592 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
593 strsignal putc_unlocked fputs_unlocked strstr environ \
594 malloc realloc calloc free basename getopt, , ,[
595 #include "gansidecl.h"
596 #include "system.h"])
598 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
599 #include "gansidecl.h"
601 #ifdef HAVE_SYS_RESOURCE_H
602 #include <sys/resource.h>
606 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
607 CFLAGS="$saved_CFLAGS"
609 # mkdir takes a single argument on some systems.
610 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
620 build_install_headers_dir=install-headers-tar
625 host_truncate_target=
628 # Decode the host machine, then the target machine.
629 # For the host machine, we save the xm_file variable as host_xm_file;
630 # then we decode the target machine and forget everything else
631 # that came from the host machine.
632 for machine in $build $host $target; do
633 . ${srcdir}/config.gcc
636 extra_objs="${host_extra_objs} ${extra_objs}"
638 # Default the target-machine variables that were not explicitly set.
639 if test x"$tm_file" = x
640 then tm_file=$cpu_type/$cpu_type.h; fi
642 if test x"$extra_headers" = x
643 then extra_headers=; fi
645 if test x"$xm_file" = x
646 then xm_file=$cpu_type/xm-$cpu_type.h; fi
648 if test x$md_file = x
649 then md_file=$cpu_type/$cpu_type.md; fi
651 if test x$out_file = x
652 then out_file=$cpu_type/$cpu_type.c; fi
654 if test x"$tmake_file" = x
655 then tmake_file=$cpu_type/t-$cpu_type
658 if test x"$dwarf2" = xyes
659 then tm_file="$tm_file tm-dwarf2.h"
662 if test x$float_format = x
663 then float_format=i64
666 if test $float_format = none
667 then float_h_file=Makefile.in
668 else float_h_file=float-$float_format.h
671 # Handle cpp installation.
672 if test x$enable_cpp != xno
674 tmake_file="$tmake_file t-install-cpp"
677 # Say what files are being used for the output code and MD file.
678 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
679 echo "Using \`$srcdir/config/$md_file' as machine description file."
681 # If any of the xm_file variables contain nonexistent files, warn
682 # about them and drop them. But $cpu/xm-$cpu.h is allowed not to
683 # exist, if we have nothing for it to do.
686 for x in $build_xm_file; do
687 if test -f $srcdir/config/$x
689 elif expr $x : '\([^/]*\)/xm-\1\.h' >/dev/null
691 else AC_MSG_WARN($srcdir/config/$x does not exist.)
697 for x in $host_xm_file; do
698 if test -f $srcdir/config/$x
700 elif expr $x : '\([^/]*\)/xm-\1\.h' >/dev/null
702 else AC_MSG_WARN($srcdir/config/$x does not exist.)
708 for x in $xm_file; do
709 if test -f $srcdir/config/$x
711 elif expr $x : '\([^/]*\)/xm-\1\.h' >/dev/null
713 else AC_MSG_WARN($srcdir/config/$x does not exist.)
720 for f in $tm_file; do
723 if test $count = ax; then
724 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
726 echo "Using the following target machine macro files:"
727 for f in $tm_file; do
728 echo " $srcdir/config/$f"
733 for f in $host_xm_file; do
736 if test $count = a; then
738 elif test $count = ax; then
739 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
741 echo "Using the following host machine macro files:"
742 for f in $host_xm_file; do
743 echo " $srcdir/config/$f"
747 if test "$host_xm_file" != "$build_xm_file"; then
749 for f in $build_xm_file; do
752 if test $count = a; then
754 elif test $count = ax; then
755 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
757 echo "Using the following build machine macro files:"
758 for f in $build_xm_file; do
759 echo " $srcdir/config/$f"
764 if test x$thread_file = x; then
765 if test x$target_thread_file != x; then
766 thread_file=$target_thread_file
772 # auto-host.h is the file containing items generated by autoconf and is
773 # the first file included by config.h.
774 # If host=build, it is correct to have hconfig include auto-host.h
775 # as well. If host!=build, we are in error and need to do more
776 # work to find out the build config parameters.
777 if test x$host = x$build
779 build_auto=auto-host.h
781 # We create a subdir, then run autoconf in the subdir.
782 # To prevent recursion we set host and build for the new
783 # invocation of configure to the build for this invocation
790 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
791 *) realsrcdir=../${srcdir};;
793 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
794 --target=$target --host=$build --build=$build
796 # We just finished tests for the build machine, so rename
797 # the file auto-build.h in the gcc directory.
798 mv auto-host.h ../auto-build.h
801 build_auto=auto-build.h
804 tm_file="${tm_file} defaults.h"
805 host_xm_file="auto-host.h gansidecl.h ${host_xm_file} ${tm_file}"
806 build_xm_file="${build_auto} gansidecl.h ${build_xm_file} ${tm_file}"
807 xm_file="gansidecl.h ${xm_file} ${tm_file}"
809 # Truncate the target if necessary
810 if test x$host_truncate_target != x; then
811 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
814 # Get the version trigger filename from the toplevel
815 if test "${with_gcc_version_trigger+set}" = set; then
816 gcc_version_trigger=$with_gcc_version_trigger
818 gcc_version_trigger=${srcdir}/version.c
821 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
822 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
824 # Compile in configure arguments.
825 if test -f configargs.h ; then
826 # Being re-configured.
827 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
828 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
830 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
832 cat > configargs.h <<EOF
833 /* Generated automatically. */
834 static const char configuration_arguments[] = "$gcc_config_arguments";
838 # Internationalization
840 VERSION="$gcc_version"
841 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
842 [Define to the name of the distribution.])
843 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
844 [Define to the version of the distribution.])
850 # Enable NLS support by default
852 [ --enable-nls use Native Language Support (default)],
855 # if cross compiling, disable NLS support.
856 # It's not worth the trouble, at least for now.
858 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
859 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
863 # if NLS is enabled, also enable check in po subdir
864 if test $enable_nls = yes; then
873 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
875 # Windows32 Registry support for specifying GCC installation paths.
876 AC_ARG_ENABLE(win32-registry,
877 [ --disable-win32-registry
878 Disable lookup of installation paths in the
879 Registry on Windows hosts.
880 --enable-win32-registry Enable registry lookup (default).
881 --enable-win32-registry=KEY
882 Use KEY instead of GCC version as the last portion
883 of the registry key.],,)
885 AC_MSG_CHECKING(whether windows registry support is requested)
886 if test x$enable_win32_registry != xno; then
887 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
888 [Define to 1 if installation paths should be looked up in Windows32
889 Registry. Ignored on non windows32 hosts.])
895 # Check if user specified a different registry key.
896 case x${enable_win32_registry} in
899 gcc_cv_win32_registry_key="$VERSION"
902 # no registry lookup.
903 gcc_cv_win32_registry_key=''
906 # user-specified key.
907 gcc_cv_win32_registry_key="$enable_win32_registry"
911 if test x$enable_win32_registry != xno; then
912 AC_MSG_CHECKING(registry key on windows hosts)
913 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
914 [Define to be the last portion of registry key on windows hosts.])
915 AC_MSG_RESULT($gcc_cv_win32_registry_key)
918 # Get an absolute path to the GCC top-level source directory
924 # Conditionalize the makefile for this host machine.
925 # Make-host contains the concatenation of all host makefile fragments
926 # [there can be more than one]. This file is built by configure.frag.
927 host_overrides=Make-host
929 for f in .. ${host_xmake_file}
931 if test -f ${srcdir}/config/$f
933 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
937 # Conditionalize the makefile for this target machine.
938 # Make-target contains the concatenation of all host makefile fragments
939 # [there can be more than one]. This file is built by configure.frag.
940 target_overrides=Make-target
942 for f in .. ${tmake_file}
944 if test -f ${srcdir}/config/$f
946 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
950 # If the host doesn't support symlinks, modify CC in
951 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
952 # Otherwise, we can use "CC=$(CC)".
954 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
956 cc_set_by_configure="\$(CC)"
957 quoted_cc_set_by_configure="\$(CC)"
958 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
961 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
963 symbolic_link="cp -p"
967 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
968 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
969 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
973 out_object_file=`basename $out_file .c`.o
976 for f in $tm_file; do
978 gansidecl.h | defaults.h )
979 tm_file_list="${tm_file_list} $f" ;;
980 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
985 for f in $tm_p_file; do
986 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
990 for f in $host_xm_file; do
992 auto-host.h | gansidecl.h | defaults.h )
993 host_xm_file_list="${host_xm_file_list} $f" ;;
994 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
999 for f in $build_xm_file; do
1001 auto-build.h | auto-host.h | gansidecl.h | defaults.h )
1002 build_xm_file_list="${build_xm_file_list} $f" ;;
1003 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1007 # Define macro CROSS_COMPILE in compilation
1008 # if this is a cross-compiler.
1009 # Also use all.cross instead of all.internal
1010 # and add cross-make to Makefile.
1011 cross_overrides="/dev/null"
1012 if test x$host != x$target
1014 cross_defines="CROSS=-DCROSS_COMPILE"
1015 cross_overrides="${topdir}/cross-make"
1018 # If this is a cross-compiler that does not
1019 # have its own set of headers then define
1022 # If this is using newlib, then define inhibit_libc in
1023 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1024 # libgcc.a, but that's OK because newlib should have its own version of
1027 if [test x$host != x$target] && [test x$with_headers = x]; then
1028 inhibit_libc=-Dinhibit_libc
1030 if [test x$with_newlib = xyes]; then
1031 inhibit_libc=-Dinhibit_libc
1034 AC_SUBST(inhibit_libc)
1036 # When building gcc with a cross-compiler, we need to fix a few things.
1037 # This must come after cross-make as we want all.build to override
1039 build_overrides="/dev/null"
1040 if test x$build != x$host
1042 build_overrides="${topdir}/build-make"
1045 # Expand extra_headers to include complete path.
1046 # This substitutes for lots of t-* files.
1048 if test "x$extra_headers" = x
1051 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1052 for file in $extra_headers;
1054 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1058 if test x$use_collect2 = xno; then
1062 # Add a definition of USE_COLLECT2 if system wants one.
1063 # Also tell toplev.c what to do.
1064 # This substitutes for lots of t-* files.
1065 if test x$use_collect2 = x
1070 will_use_collect2="collect2"
1071 maybe_use_collect2="-DUSE_COLLECT2"
1074 # If we have gas in the build tree, make a link to it.
1075 if test -f ../gas/Makefile; then
1076 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1079 # If we have nm in the build tree, make a link to it.
1080 if test -f ../binutils/Makefile; then
1081 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1084 # If we have ld in the build tree, make a link to it.
1085 if test -f ../ld/Makefile; then
1086 # if test x$use_collect2 = x; then
1087 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1089 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1093 # Figure out what assembler we will be using.
1094 AC_MSG_CHECKING(what assembler to use)
1096 gcc_cv_gas_major_version=
1097 gcc_cv_gas_minor_version=
1098 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1099 if test -x "$DEFAULT_ASSEMBLER"; then
1100 gcc_cv_as="$DEFAULT_ASSEMBLER"
1101 elif test -x "$AS"; then
1103 elif test -x as$host_exeext; then
1104 # Build using assembler in the current directory.
1105 gcc_cv_as=./as$host_exeext
1106 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1107 # Single tree build which includes gas.
1108 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1111 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1113 if test x$gcc_cv_gas_version != x; then
1118 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1119 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1123 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1125 # Search the same directories that the installed compiler will
1126 # search. Else we may find the wrong assembler and lose. If we
1127 # do not find a suitable assembler binary, then try the user's
1130 # Also note we have to check MD_EXEC_PREFIX before checking the
1131 # user's path. Unfortunately, there is no good way to get at the
1132 # value of MD_EXEC_PREFIX here. So we do a brute force search
1133 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1134 # to be fixed as part of the make/configure rewrite too.
1136 if test "x$exec_prefix" = xNONE; then
1137 if test "x$prefix" = xNONE; then
1138 test_prefix=/usr/local
1143 test_prefix=$exec_prefix
1146 # If the loop below does not find an assembler, then use whatever
1147 # one we can find in the users's path.
1149 gcc_cv_as=as$host_exeext
1151 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1152 $test_prefix/lib/gcc-lib/$target \
1153 /usr/lib/gcc/$target/$gcc_version \
1154 /usr/lib/gcc/$target \
1155 $test_prefix/$target/bin/$target/$gcc_version \
1156 $test_prefix/$target/bin \
1161 /bsd43/usr/lib/cmplrs/cc \
1162 /usr/cross64/usr/bin \
1163 /usr/lib/cmplrs/cc \
1164 /sysv/usr/lib/cmplrs/cc \
1165 /svr4/usr/lib/cmplrs/cc \
1168 for dir in $test_dirs; do
1169 if test -f $dir/as$host_exeext; then
1170 gcc_cv_as=$dir/as$host_exeext
1175 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1176 AC_MSG_RESULT("newly built gas")
1178 AC_MSG_RESULT($gcc_cv_as)
1181 # Figure out what nm we will be using.
1182 AC_MSG_CHECKING(what nm to use)
1183 if test -x nm$host_exeext; then
1184 gcc_cv_nm=./nm$host_exeext
1185 elif test x$host = x$target; then
1187 gcc_cv_nm=nm$host_exeext
1189 AC_MSG_RESULT($gcc_cv_nm)
1191 # Figure out what assembler alignment features are present.
1192 AC_MSG_CHECKING(assembler alignment features)
1193 gcc_cv_as_alignment_features=none
1194 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1195 # Gas version 2.6 and later support for .balign and .p2align.
1196 # bytes to skip when using .p2align.
1197 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1198 gcc_cv_as_alignment_features=".balign and .p2align"
1199 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1201 # Gas version 2.8 and later support specifying the maximum
1202 # bytes to skip when using .p2align.
1203 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1204 gcc_cv_as_alignment_features=".p2align including maximum skip"
1205 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1207 elif test x$gcc_cv_as != x; then
1208 # Check if we have .balign and .p2align
1209 echo ".balign 4" > conftest.s
1210 echo ".p2align 2" >> conftest.s
1211 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1212 gcc_cv_as_alignment_features=".balign and .p2align"
1213 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1215 rm -f conftest.s conftest.o
1216 # Check if specifying the maximum bytes to skip when
1217 # using .p2align is supported.
1218 echo ".p2align 4,,7" > conftest.s
1219 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1220 gcc_cv_as_alignment_features=".p2align including maximum skip"
1221 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1223 rm -f conftest.s conftest.o
1225 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1227 AC_MSG_CHECKING(assembler subsection support)
1228 gcc_cv_as_subsections=no
1229 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1230 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1231 gcc_cv_as_subsections="working .subsection -1"
1233 elif test x$gcc_cv_as != x; then
1234 # Check if we have .subsection
1235 echo ".subsection 1" > conftest.s
1236 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1237 gcc_cv_as_subsections=".subsection"
1238 if test x$gcc_cv_nm != x; then
1239 cat > conftest.s <<EOF
1240 conftest_label1: .word 0
1242 conftest_label2: .word 0
1245 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1246 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1247 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1248 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1251 gcc_cv_as_subsections="working .subsection -1"
1256 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1258 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1259 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1260 [Define if your assembler supports .subsection and .subsection -1 starts
1261 emitting at the beginning of your section.])
1263 AC_MSG_RESULT($gcc_cv_as_subsections)
1265 AC_MSG_CHECKING(assembler weak support)
1267 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1268 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1269 gcc_cv_as_weak="yes"
1271 elif test x$gcc_cv_as != x; then
1272 # Check if we have .weak
1273 echo " .weak foobar" > conftest.s
1274 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1275 gcc_cv_as_weak="yes"
1277 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1279 if test x"$gcc_cv_as_weak" = xyes; then
1280 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1282 AC_MSG_RESULT($gcc_cv_as_weak)
1284 AC_MSG_CHECKING(assembler hidden support)
1286 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1287 if test "$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
1288 gcc_cv_as_hidden="yes"
1290 elif test x$gcc_cv_as != x; then
1291 # Check if we have .hidden
1292 echo " .hidden foobar" > conftest.s
1293 echo "foobar:" >> conftest.s
1294 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1295 gcc_cv_as_hidden="yes"
1297 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1299 if test x"$gcc_cv_as_hidden" = xyes; then
1300 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1301 [Define if your assembler supports .hidden.])
1303 AC_MSG_RESULT($gcc_cv_as_hidden)
1305 AC_MSG_CHECKING(assembler leb128 support)
1307 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1308 if test "$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
1309 gcc_cv_as_leb128="yes"
1311 elif test x$gcc_cv_as != x; then
1312 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1313 cat > conftest.s <<EOF
1321 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1322 gcc_cv_as_leb128="yes"
1324 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1326 if test x"$gcc_cv_as_leb128" = xyes; then
1327 AC_DEFINE(HAVE_AS_LEB128, 1,
1328 [Define if your assembler supports .uleb128.])
1330 AC_MSG_RESULT($gcc_cv_as_leb128)
1334 AC_CACHE_CHECK([assembler .register pseudo-op support],
1335 gcc_cv_as_register_pseudo_op, [
1336 gcc_cv_as_register_pseudo_op=unknown
1337 if test x$gcc_cv_as != x; then
1338 # Check if we have .register
1339 echo ".register %g2, #scratch" > conftest.s
1340 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1341 gcc_cv_as_register_pseudo_op=yes
1343 gcc_cv_as_register_pseudo_op=no
1345 rm -f conftest.s conftest.o
1348 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1349 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1350 [Define if your assembler supports .register.])
1353 AC_CACHE_CHECK([assembler supports -relax],
1354 gcc_cv_as_relax_opt, [
1355 gcc_cv_as_relax_opt=unknown
1356 if test x$gcc_cv_as != x; then
1357 # Check if gas supports -relax
1358 echo ".text" > conftest.s
1359 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1360 gcc_cv_as_relax_opt=yes
1362 gcc_cv_as_relax_opt=no
1364 rm -f conftest.s conftest.o
1367 if test "x$gcc_cv_as_relax_opt" = xyes; then
1368 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1369 [Define if your assembler supports -relax option.])
1374 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1375 gcc_cv_as_flags64, [
1376 if test -n "$gcc_cv_as"; then
1377 echo ".xword foo" > conftest.s
1378 gcc_cv_as_flags64=no
1379 for flag in "-xarch=v9" "-64 -Av9"; do
1380 if $gcc_cv_as $flag -o conftest.o conftest.s \
1381 > /dev/null 2>&1; then
1382 gcc_cv_as_flags64=$flag
1386 rm -f conftest.s conftest.o
1388 if test "$gas" = yes; then
1389 gcc_cv_as_flags64="-64 -Av9"
1391 gcc_cv_as_flags64="-xarch=v9"
1395 if test "x$gcc_cv_as_flags64" = xno; then
1397 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1398 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1401 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1402 [Define if the assembler supports 64bit sparc.])
1405 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1409 if test "x$gcc_cv_as_flags64" != xno; then
1410 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1411 gcc_cv_as_offsetable_lo10, [
1412 gcc_cv_as_offsetable_lo10=unknown
1413 if test "x$gcc_cv_as" != x; then
1414 # Check if assembler has offsetable %lo()
1415 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1416 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1417 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1419 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1420 > /dev/null 2>&1; then
1421 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1422 gcc_cv_as_offsetable_lo10=no
1424 gcc_cv_as_offsetable_lo10=yes
1427 gcc_cv_as_offsetable_lo10=no
1429 rm -f conftest.s conftest.o conftest1.s conftest1.o
1432 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1433 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1434 [Define if your assembler supports offsetable %lo().])
1442 AC_MSG_CHECKING(assembler instructions)
1443 gcc_cv_as_instructions=
1444 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1445 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1446 gcc_cv_as_instructions="filds fists"
1448 elif test x$gcc_cv_as != x; then
1449 set "filds fists" "filds mem; fists mem"
1452 echo "$2" > conftest.s
1453 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1454 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1458 rm -f conftest.s conftest.o
1460 if test x"$gcc_cv_as_instructions" != x; then
1461 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1463 AC_MSG_RESULT($gcc_cv_as_instructions)
1467 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1468 gcc_cv_as_dwarf2_debug_line=no
1469 # ??? Not all targets support dwarf2 debug_line, even within a version
1470 # of gas. Moreover, we need to emit a valid instruction to trigger any
1471 # info to the output file. So, as supported targets are added to gas 2.11,
1472 # add some instruction here to (also) show we expect this might work.
1473 # ??? Once 2.11 is released, probably need to add first known working
1474 # version to the per-target configury.
1476 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-*)
1483 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1485 if test "$gcc_cv_gas_major_version" -eq 2 \
1486 -a "$gcc_cv_gas_minor_version" -ge 11 \
1487 -o "$gcc_cv_gas_major_version" -gt 2 \
1488 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1489 && test x"$insn" != x ; then
1490 gcc_cv_as_dwarf2_debug_line="yes"
1492 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1493 echo ' .file 1 "conftest.s"' > conftest.s
1494 echo ' .loc 1 3 0' >> conftest.s
1495 echo " $insn" >> conftest.s
1496 # ??? This fails with non-gnu grep.
1497 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1498 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1499 # The .debug_line file table must be in the exact order that
1500 # we specified the files, since these indicies are also used
1501 # by DW_AT_decl_file. Approximate this test by testing if
1502 # the assembler bitches if the same index is assigned twice.
1503 echo ' .file 1 "foo.s"' > conftest.s
1504 echo ' .file 1 "bar.s"' >> conftest.s
1505 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1507 gcc_cv_as_dwarf2_debug_line="no"
1509 gcc_cv_as_dwarf2_debug_line="yes"
1512 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1514 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1515 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1516 [Define if your assembler supports dwarf2 .file/.loc directives,
1517 and preserves file table indicies exactly as given.])
1519 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1521 # Figure out what language subdirectories are present.
1522 # Look if the user specified --enable-languages="..."; if not, use
1523 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1525 if test x"${enable_languages+set}" != xset; then
1526 if test x"${LANGUAGES+set}" = xset; then
1527 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1529 enable_languages=all
1532 if test x"${enable_languages}" = x; then
1533 AC_MSG_ERROR([--enable-languages needs at least one argument])
1537 # First scan to see if an enabled language requires some other language.
1538 # We assume that a given config-lang.in will list all the language
1539 # front ends it requires, even if some are required indirectly.
1540 for lang in ${srcdir}/*/config-lang.in ..
1545 # The odd quoting in the next line works around
1546 # an apparent bug in bash 1.12 on linux.
1548 ${srcdir}/[*]/config-lang.in)
1551 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1552 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
1553 for other in $this_lang_requires
1555 case ,${enable_languages}, in
1561 enable_languages="$enable_languages,$other"
1571 for lang in ${srcdir}/*/config-lang.in ..
1575 # The odd quoting in the next line works around
1576 # an apparent bug in bash 1.12 on linux.
1578 ${srcdir}/[*]/config-lang.in) ;;
1580 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1581 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1582 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1583 if test "x$lang_alias" = x
1585 echo "$lang doesn't set \$language." 1>&2
1588 case ${build_by_default},${enable_languages}, in
1589 *,$lang_alias,*) add_this_lang=yes ;;
1590 no,*) add_this_lang=no ;;
1591 *,all,*) add_this_lang=yes ;;
1592 *) add_this_lang=no ;;
1594 if test x"${add_this_lang}" = xyes; then
1596 ${srcdir}/ada/config-lang.in)
1597 if test x$have_gnat = xyes ; then
1598 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1602 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1611 # Make gthr-default.h if we have a thread file.
1613 if test $thread_file != single; then
1614 rm -f gthr-default.h
1615 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1616 gthread_flags=-DHAVE_GTHR_DEFAULT
1618 AC_SUBST(gthread_flags)
1620 # Find out what GC implementation we want, or may, use.
1622 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1623 with the compiler.],
1629 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1634 echo "Using $GGC for garbage collection."
1636 # Use the system's zlib library.
1638 zlibinc="-I\$(srcdir)/../zlib"
1639 AC_ARG_WITH(system-zlib,
1640 [ --with-system-zlib use installed libz],
1647 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, 1,
1648 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1650 dnl Very limited version of automake's enable-maintainer-mode
1652 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1653 dnl maintainer-mode is disabled by default
1654 AC_ARG_ENABLE(maintainer-mode,
1655 [ --enable-maintainer-mode enable make rules and dependencies not useful
1656 (and sometimes confusing) to the casual installer],
1657 maintainer_mode=$enableval,
1660 AC_MSG_RESULT($maintainer_mode)
1662 if test "$maintainer_mode" = "yes"; then
1669 # With Setjmp/Longjmp based exception handling.
1670 AC_ARG_ENABLE(sjlj-exceptions,
1671 [ --enable-sjlj-exceptions arrange to use setjmp/longjmp exception handling.],
1672 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1673 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1674 [Define 0/1 to force the choice for exception handling model.])])
1676 # Make empty files to contain the specs and options for each language.
1677 # Then add #include lines to for a compiler that has specs and/or options.
1682 rm -f specs.h options.h gencheck.h
1683 touch specs.h options.h gencheck.h
1684 for subdir in . $subdirs
1686 if test -f $srcdir/$subdir/lang-specs.h; then
1687 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1688 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1690 if test -f $srcdir/$subdir/lang-options.h; then
1691 echo "#include \"$subdir/lang-options.h\"" >>options.h
1692 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1694 if test -f $srcdir/$subdir/$subdir-tree.def; then
1695 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1696 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1700 # These (without "all_") are set in each config-lang.in.
1701 # `language' must be a single word so is spelled singularly.
1707 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1708 # List of language makefile fragments.
1713 # Add the language fragments.
1714 # Languages are added via two mechanisms. Some information must be
1715 # recorded in makefile variables, these are defined in config-lang.in.
1716 # We accumulate them and plug them into the main Makefile.
1717 # The other mechanism is a set of hooks for each of the main targets
1718 # like `clean', `install', etc.
1720 language_fragments="Make-lang"
1721 language_hooks="Make-hooks"
1723 for s in .. $subdirs
1735 . ${srcdir}/$s/config-lang.in
1736 if test "x$language" = x
1738 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1741 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1742 if test -f ${srcdir}/$s/Makefile.in
1743 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1745 all_languages="$all_languages $language"
1746 if test "x$boot_language" = xyes
1748 all_boot_languages="$all_boot_languages $language"
1750 all_compilers="$all_compilers $compilers"
1751 all_stagestuff="$all_stagestuff $stagestuff"
1752 all_diff_excludes="$all_diff_excludes $diff_excludes"
1753 all_headers="$all_headers $headers"
1754 all_outputs="$all_outputs $outputs"
1755 all_lib2funcs="$all_lib2funcs $lib2funcs"
1760 for language in .. $all_languages
1762 if test $language != ".."
1764 check_languages="$check_languages check-$language"
1768 # Since we can't use `::' targets, we link each language in
1769 # with a set of hooks, reached indirectly via lang.${target}.
1773 target_list="all.build all.cross start.encap rest.encap \
1775 install-normal install-common install-info install-man \
1777 mostlyclean clean distclean extraclean maintainer-clean \
1778 stage1 stage2 stage3 stage4"
1779 for t in $target_list
1782 for lang in .. $all_languages
1784 if test $lang != ".."; then
1788 echo "lang.$t: $x" >> Make-hooks
1793 echo "dir ." > .gdbinit
1794 echo "dir ${srcdir}" >> .gdbinit
1795 if test x$gdb_needs_out_file_path = xyes
1797 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1799 if test "x$subdirs" != x; then
1802 echo "dir ${srcdir}/$s" >> .gdbinit
1805 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
1807 # Define variables host_canonical and build_canonical
1808 # because some Cygnus local changes in the Makefile depend on them.
1809 build_canonical=${build}
1810 host_canonical=${host}
1812 if test "${host}" != "${target}" ; then
1813 target_subdir=${target}/
1815 AC_SUBST(build_canonical)
1816 AC_SUBST(host_canonical)
1817 AC_SUBST(target_subdir)
1819 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1820 # absolute path for gcc_tooldir based on inserting the number of up-directory
1821 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1822 # $(libsubdir)/@(unlibsubdir) based path.
1823 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1824 # make and thus we'd get different behavior depending on where we built the
1826 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1827 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1829 changequote(<<, >>)dnl
1830 # An explanation of the sed strings:
1831 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1832 # -e 's|/$||' match a trailing forward slash and eliminates it
1833 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1834 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1836 # (*) Note this pattern overwrites the first character of the string
1837 # with a forward slash if one is not already present. This is not a
1838 # problem because the exact names of the sub-directories concerned is
1839 # unimportant, just the number of them matters.
1841 # The practical upshot of these patterns is like this:
1843 # prefix exec_prefix result
1844 # ------ ----------- ------
1846 # /foo/ /foo/bar ../
1847 # /foo /foo/bar/ ../
1848 # /foo/ /foo/bar/ ../
1849 # /foo /foo/bar/ugg ../../
1852 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1853 changequote([, ])dnl
1855 AC_SUBST(gcc_tooldir)
1858 # Find a directory in which to install a shared libgcc.
1860 AC_ARG_ENABLE(version-specific-runtime-libs,
1861 [ --enable-version-specific-runtime-libs Specify that runtime libraries shou
1862 ld be installed in a compiler-specific directory ])
1864 AC_ARG_WITH(slibdir,
1865 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
1866 slibdir="$with_slibdir",
1867 if test "${enable_version_specific_runtime_libs+set}" = set; then
1868 slibdir='$(libsubdir)'
1869 elif test "$host" != "$target"; then
1870 slibdir='$(build_tooldir)/lib'
1876 # Nothing to do for FLOAT_H, float_format already handled.
1880 # Process the language and host/target makefile fragments.
1881 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1883 # Substitute configuration variables
1885 AC_SUBST(all_boot_languages)
1886 AC_SUBST(all_compilers)
1887 AC_SUBST(all_diff_excludes)
1888 AC_SUBST(all_headers)
1889 AC_SUBST(all_lang_makefiles)
1890 AC_SUBST(all_languages)
1891 AC_SUBST(all_lib2funcs)
1892 AC_SUBST(all_stagestuff)
1893 AC_SUBST(build_exeext)
1894 AC_SUBST(build_install_headers_dir)
1895 AC_SUBST(build_xm_file_list)
1896 AC_SUBST(build_xm_file)
1897 AC_SUBST(build_xm_defines)
1898 AC_SUBST(check_languages)
1899 AC_SUBST(cc_set_by_configure)
1900 AC_SUBST(quoted_cc_set_by_configure)
1901 AC_SUBST(cpp_install_dir)
1902 AC_SUBST(dep_host_xmake_file)
1903 AC_SUBST(dep_tmake_file)
1904 AC_SUBST(extra_c_flags)
1905 AC_SUBST(extra_headers_list)
1906 AC_SUBST(extra_objs)
1907 AC_SUBST(extra_parts)
1908 AC_SUBST(extra_passes)
1909 AC_SUBST(extra_programs)
1910 AC_SUBST(float_h_file)
1911 AC_SUBST(gcc_config_arguments)
1912 AC_SUBST(gcc_gxx_include_dir)
1913 AC_SUBST(libstdcxx_incdir)
1914 AC_SUBST(gcc_version)
1915 AC_SUBST(gcc_version_full)
1916 AC_SUBST(gcc_version_trigger)
1917 AC_SUBST(host_exeext)
1918 AC_SUBST(host_extra_gcc_objs)
1919 AC_SUBST(host_xm_file_list)
1920 AC_SUBST(host_xm_file)
1921 AC_SUBST(host_xm_defines)
1923 AC_SUBST(lang_options_files)
1924 AC_SUBST(lang_specs_files)
1925 AC_SUBST(lang_tree_files)
1926 AC_SUBST(local_prefix)
1927 AC_SUBST(maybe_use_collect2)
1929 AC_SUBST(objc_boehm_gc)
1931 AC_SUBST(out_object_file)
1932 AC_SUBST(stage_prefix_set_by_configure)
1933 AC_SUBST(symbolic_link)
1934 AC_SUBST(thread_file)
1935 AC_SUBST(tm_file_list)
1937 AC_SUBST(tm_p_file_list)
1940 AC_SUBST(xm_defines)
1941 AC_SUBST(will_use_collect2)
1942 AC_SUBST(c_target_objs)
1943 AC_SUBST(cxx_target_objs)
1944 AC_SUBST(target_cpu_default)
1946 AC_SUBST_FILE(target_overrides)
1947 AC_SUBST_FILE(host_overrides)
1948 AC_SUBST(cross_defines)
1949 AC_SUBST_FILE(cross_overrides)
1950 AC_SUBST_FILE(build_overrides)
1951 AC_SUBST_FILE(language_fragments)
1952 AC_SUBST_FILE(language_hooks)
1954 # Echo that links are built
1955 if test x$host = x$target
1963 if test x$host != x$build
1965 str3=" on a $build system"
1968 if test "x$str2" != x || test "x$str3" != x
1973 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1975 if test "x$str2" != x || test "x$str3" != x
1977 echo " ${str2}${str3}." 1>&2
1980 # Truncate the target if necessary
1981 if test x$host_truncate_target != x; then
1982 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1985 # Configure the subdirectories
1986 # AC_CONFIG_SUBDIRS($subdirs)
1988 # Create the Makefile
1989 # and configure language subdirectories
1990 AC_OUTPUT($all_outputs,
1992 case x$CONFIG_HEADERS in
1993 xauto-host.h:config.in)
1996 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1997 # bootstrapping and the installation procedure can still use
1998 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
1999 # FLAGS_TO_PASS has been modified to solve the problem there.
2000 # This is virtually a duplicate of what happens in configure.lang; we do
2001 # an extra check to make sure this only happens if ln -s can be used.
2002 if test "$symbolic_link" = "ln -s"; then
2003 for d in .. ${subdirs} ; do
2004 if test $d != ..; then
2007 for t in stage1 stage2 stage3 stage4 include
2010 $symbolic_link ../$t $t 2>/dev/null
2016 # Avoid having to add intl to our include paths.
2017 if test -f intl/libintl.h; then
2018 echo creating libintl.h
2019 echo '#include "intl/libintl.h"' >libintl.h
2026 target_alias='${target_alias}'
2028 subdirs='${subdirs}'
2029 symbolic_link='${symbolic_link}'
2030 program_transform_set='${program_transform_set}'
2031 program_transform_name='${program_transform_name}'
2032 dep_host_xmake_file='${dep_host_xmake_file}'
2033 host_xmake_file='${host_xmake_file}'
2034 dep_tmake_file='${dep_tmake_file}'
2035 tmake_file='${tmake_file}'
2036 thread_file='${thread_file}'
2037 gcc_config_arguments='${gcc_config_arguments}'
2038 gcc_version='${gcc_version}'
2039 gcc_version_full='${gcc_version_full}'
2040 gcc_version_trigger='${gcc_version_trigger}'
2041 local_prefix='${local_prefix}'
2042 build_install_headers_dir='${build_install_headers_dir}'
2043 build_exeext='${build_exeext}'
2044 host_exeext='${host_exeext}'
2045 out_file='${out_file}'
2046 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
2047 SET_MAKE='${SET_MAKE}'
2048 target_list='${target_list}'
2049 target_overrides='${target_overrides}'
2050 host_overrides='${host_overrides}'
2051 cross_defines='${cross_defines}'
2052 cross_overrides='${cross_overrides}'
2053 build_overrides='${build_overrides}'
2054 cpp_install_dir='${cpp_install_dir}'