1 # configure.in for GNU CC
2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997, 1998, 1999, 2000 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$local_prefix = x; then
151 local_prefix=/usr/local
154 # Build a new-libstdc++ system (ie libstdc++-v3)
155 AC_MSG_CHECKING([for libstdc++ to install])
156 AC_ARG_ENABLE(libstdcxx-v3,
157 [ --enable-libstdcxx-v3
158 enable libstdc++-v3 for building and installation],
159 [enable_libstdcxx_v3="$enableval"], [enable_libstdcxx_v3=yes])
161 if test x$enable_libstdcxx_v3 = xyes; then
171 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
172 # passed in by the toplevel make and thus we'd get different behavior
173 # depending on where we built the sources.
175 # Specify the g++ header file directory
176 AC_ARG_WITH(gxx-include-dir,
177 [ --with-gxx-include-dir=DIR
178 specifies directory to put g++ header files.],
179 [case "${withval}" in
180 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
182 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
185 if test x${gcc_gxx_include_dir} = x; then
186 if test x${enable_version_specific_runtime_libs} = xyes; then
187 gcc_gxx_include_dir='${libsubdir}/include/g++'
189 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
190 changequote(<<, >>)dnl
191 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/g++"-${libstdcxx_interface}
196 # Enable expensive internal checks
197 AC_ARG_ENABLE(checking,
198 [ --enable-checking[=LIST]
199 enable expensive run-time checks. With LIST,
200 enable only specific categories of checks.
201 Categories are: misc,tree,rtl,gc,gcac; default
207 ac_gc_always_collect=
208 case "${enableval}" in
209 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;;
211 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
212 set fnord $enableval; shift
217 misc) ac_checking=1 ;;
218 tree) ac_tree_checking=1 ;;
219 rtl) ac_rtl_checking=1 ;;
220 gc) ac_gc_checking=1 ;;
221 gcac) ac_gc_always_collect=1 ;;
222 *) AC_MSG_ERROR(unknown check category $check) ;;
228 # Enable some checks by default for development versions of GCC
229 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1;])
230 if test x$ac_checking != x ; then
231 AC_DEFINE(ENABLE_CHECKING, 1,
232 [Define if you want more run-time sanity checks. This one gets a grab
233 bag of miscellaneous but relatively cheap checks.])
235 if test x$ac_tree_checking != x ; then
236 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
237 [Define if you want all operations on trees (the basic data
238 structure of the front ends) to be checked for dynamic type safety
239 at runtime. This is moderately expensive.])
241 if test x$ac_rtl_checking != x ; then
242 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
243 [Define if you want all operations on RTL (the basic data structure
244 of the optimizer and back end) to be checked for dynamic type safety
245 at runtime. This is quite expensive.])
247 if test x$ac_gc_checking != x ; then
248 AC_DEFINE(ENABLE_GC_CHECKING, 1,
249 [Define if you want the garbage collector to do object poisoning and
250 other memory allocation checks. This is quite expensive.])
252 if test x$ac_gc_always_collect != x ; then
253 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
254 [Define if you want the garbage collector to operate in maximally
255 paranoid mode, validating the entire heap and collecting garbage at
256 every opportunity. This is extremely expensive.])
261 [ --disable-cpp don't provide a user-visible C preprocessor.],
262 [], [enable_cpp=yes])
264 AC_ARG_WITH(cpp_install_dir,
265 [ --with-cpp-install-dir=DIR
266 install the user visible C preprocessor in DIR
267 (relative to PREFIX) as well as PREFIX/bin.],
268 [if test x$withval = xyes; then
269 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
270 elif test x$withval != xno; then
271 cpp_install_dir=$withval
274 # Link cpplib into the compiler proper, for C/C++/ObjC. Defaults to on.
275 maybe_cpplib=libcpp.a
276 AC_ARG_ENABLE(c-cpplib,
277 [ --enable-c-cpplib link cpplib directly into C and C++ compilers
278 (HIGHLY EXPERIMENTAL).],
279 [if test x$enable_c_cpplib != xyes; then
283 if test x$maybe_cpplib != x ; then
284 AC_DEFINE(USE_CPPLIB, 1,
285 [Define if you want the preprocessor merged into the C and C++ compilers.])
287 AC_SUBST(maybe_cpplib)
289 # Enable Multibyte Characters for C/C++
290 AC_ARG_ENABLE(c-mbchar,
291 [ --enable-c-mbchar Enable multibyte characters for C and C++.],
292 if test x$enable_c_mbchar != xno; then
293 AC_DEFINE(MULTIBYTE_CHARS, 1,
294 [Define if you want the C and C++ compilers to support multibyte
295 character sets for source code.])
299 # Pass with no value to take the default
300 # Pass with a value to specify a thread package
301 AC_ARG_ENABLE(threads,
302 [ --enable-threads enable thread usage for target GCC.
303 --enable-threads=LIB use LIB thread package for target GCC.],,
306 enable_threads_flag=$enable_threads
307 # Check if a valid thread package
308 case x${enable_threads_flag} in
311 target_thread_file='single'
315 target_thread_file=''
317 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
318 xsolaris | xwin32 | xdce | xvxworks | xaix)
319 target_thread_file=$enable_threads_flag
322 echo "$enable_threads is an unknown thread package" 1>&2
327 AC_ARG_ENABLE(objc-gc,
328 [ --enable-objc-gc enable the use of Boehm's garbage collector with
329 the GNU Objective-C runtime.],
330 if test x$enable_objc_gc = xno; then
338 [ --with-dwarf2 force the default debug format to be DWARF2.],
339 dwarf2="$with_dwarf2",
342 AC_ARG_ENABLE(shared,
343 [ --disable-shared don't provide a shared libgcc.],
344 [], [enable_shared=yes])
345 AC_SUBST(enable_shared)
347 # Determine the host, build, and target systems
350 # Find the native compiler
353 # autoconf is lame and doesn't give us any substitution variable for this.
354 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
355 NO_MINUS_C_MINUS_O=yes
357 OUTPUT_OPTION='-o $@'
359 AC_SUBST(NO_MINUS_C_MINUS_O)
360 AC_SUBST(OUTPUT_OPTION)
364 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
365 ac_cv_prog_cc_no_long_long,
366 [save_CFLAGS="$CFLAGS"
367 CFLAGS="-Wno-long-long"
368 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
369 ac_cv_prog_cc_no_long_long=no)
370 CFLAGS="$save_CFLAGS"])
372 if test $ac_cv_prog_cc_no_long_long = yes; then
373 strict1_warn="-pedantic -Wno-long-long"
375 AC_SUBST(strict1_warn)
377 # If the native compiler is GCC, we can enable warnings even in stage1.
378 # That's useful for people building cross-compilers, or just running a
381 if test "x$GCC" = "xyes"; then
382 warn_cflags='$(GCC_WARN_CFLAGS)'
384 AC_SUBST(warn_cflags)
386 # Stage specific cflags for build.
392 stage1_cflags="-Wa,-J"
398 AC_SUBST(stage1_cflags)
402 AC_MSG_CHECKING([whether a default assembler was specified])
403 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
404 if test x"$gas_flag" = x"no"; then
405 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
407 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
413 AC_MSG_CHECKING([whether a default linker was specified])
414 if test x"${DEFAULT_LINKER+set}" = x"set"; then
415 if test x"$gnu_ld_flag" = x"no"; then
416 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
418 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
424 AC_MSG_CHECKING(for GNU C library)
425 AC_CACHE_VAL(gcc_cv_glibc,
427 [#include <features.h>],[
428 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
429 #error Not a GNU C library system
433 AC_MSG_RESULT($gcc_cv_glibc)
434 if test $gcc_cv_glibc = yes; then
435 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
440 # Find some useful tools
452 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
453 fcntl.h unistd.h stab.h sys/file.h sys/time.h \
454 sys/resource.h sys/param.h sys/times.h sys/stat.h \
455 direct.h malloc.h langinfo.h iconv.h)
457 # Check for thread headers.
458 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
459 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
461 # See if GNAT has been installed
462 AC_CHECK_PROG(gnat, gnatbind, yes, no)
464 # Do we have a single-tree copy of texinfo?
465 if test -f $srcdir/../texinfo/Makefile.in; then
466 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
467 gcc_cv_prog_makeinfo_modern=yes
468 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
470 # See if makeinfo has been installed and is modern enough
471 # that we can use it.
472 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
473 [GNU texinfo.* \([0-9][0-9.]*\)],
474 [3.1[2-9] | 3.[2-9][0-9] | 4.* | 1.6[89] | 1.7[0-9]])
477 if test $gcc_cv_prog_makeinfo_modern = no; then
479 *** Makeinfo is missing or too old.
480 *** Info documentation will not be built or installed.])
484 BUILD_INFO=info AC_SUBST(BUILD_INFO)
485 INSTALL_INFO=install-info AC_SUBST(INSTALL_INFO)
489 dnl Don't use AC_PROG_LEX; we insist on flex.
490 dnl LEXLIB is not useful in gcc.
491 if test -f $srcdir/../flex/skel.c; then
492 FLEX='$(objdir)/../flex/flex'
494 AC_CHECK_PROG(FLEX, flex, flex, false)
498 # The -L switch is so bison can find its skeleton file.
499 if test -f $srcdir/../bison/bison.simple; then
500 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
502 AC_CHECK_PROG(BISON, bison, bison, false)
505 # See if the stage1 system preprocessor understands the ANSI C
506 # preprocessor stringification operator.
509 # Use <inttypes.h> only if it exists,
510 # doesn't clash with <sys/types.h>, and declares intmax_t.
511 AC_MSG_CHECKING(for inttypes.h)
512 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
514 [#include <sys/types.h>
515 #include <inttypes.h>],
517 [gcc_cv_header_inttypes_h=yes],
518 gcc_cv_header_inttypes_h=no)])
519 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
520 if test $gcc_cv_header_inttypes_h = yes; then
521 AC_DEFINE(HAVE_INTTYPES_H, 1,
522 [Define if you have a working <inttypes.h> header file.])
526 # Determine if enumerated bitfields are unsigned. ISO C says they can
527 # be either signed or unsigned.
529 AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
530 [AC_TRY_RUN(#include <stdlib.h>
531 enum t { BLAH = 128 } ;
532 struct s_t { enum t member : 8; } s ;
536 if (s.member < 0) exit(1);
539 }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
540 if test $gcc_cv_enum_bf_unsigned = yes; then
541 AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
542 [Define if enumerated bitfields are treated as unsigned values.])
545 AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy \
546 strchr strrchr kill getrlimit setrlimit atoll atoq \
547 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
548 fputs_unlocked getrusage valloc iconv nl_langinfo)
550 AC_CHECK_TYPE(ssize_t, int)
552 # Try to determine the array type of the second argument of getgroups
553 # for the target system (int or gid_t).
555 if test "${target}" = "${build}"; then
556 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
559 # This condition may need some tweaking. It should include all
560 # targets where the array type of the second argument of getgroups
561 # is int and the type of gid_t is not equivalent to int.
562 *-*-sunos* | *-*-ultrix*)
563 TARGET_GETGROUPS_T=int
566 TARGET_GETGROUPS_T=gid_t
570 AC_SUBST(TARGET_GETGROUPS_T)
572 gcc_AC_FUNC_VFPRINTF_DOPRNT
573 gcc_AC_FUNC_PRINTF_PTR
577 # Under some versions of uwin, vfork is notoriously buggy and the test
578 # can hang configure; on other versions, vfork exists just as a stub.
579 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
580 ac_cv_func_vfork_works=no
584 AC_FUNC_MMAP_ANYWHERE
587 # We will need to find libiberty.h and ansidecl.h
588 saved_CFLAGS="$CFLAGS"
589 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
590 gcc_AC_CHECK_DECLS(bcopy \
591 getenv atol sbrk abort atof getcwd getwd \
592 strsignal putc_unlocked fputs_unlocked strstr environ \
593 malloc realloc calloc free basename getopt, , ,[
594 #include "gansidecl.h"
595 #include "system.h"])
597 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
598 #include "gansidecl.h"
600 #ifdef HAVE_SYS_RESOURCE_H
601 #include <sys/resource.h>
605 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
606 CFLAGS="$saved_CFLAGS"
608 # mkdir takes a single argument on some systems.
609 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
619 build_install_headers_dir=install-headers-tar
624 host_truncate_target=
627 # Decode the host machine, then the target machine.
628 # For the host machine, we save the xm_file variable as host_xm_file;
629 # then we decode the target machine and forget everything else
630 # that came from the host machine.
631 for machine in $build $host $target; do
632 . ${srcdir}/config.gcc
635 extra_objs="${host_extra_objs} ${extra_objs}"
637 # Default the target-machine variables that were not explicitly set.
638 if test x"$tm_file" = x
639 then tm_file=$cpu_type/$cpu_type.h; fi
641 if test x$extra_headers = x
642 then extra_headers=; fi
644 if test x"$xm_file" = x
645 then xm_file=$cpu_type/xm-$cpu_type.h; fi
647 if test x$md_file = x
648 then md_file=$cpu_type/$cpu_type.md; fi
650 if test x$out_file = x
651 then out_file=$cpu_type/$cpu_type.c; fi
653 if test x"$tmake_file" = x
654 then tmake_file=$cpu_type/t-$cpu_type
657 if test x"$dwarf2" = xyes
658 then tm_file="$tm_file tm-dwarf2.h"
661 if test x$float_format = x
662 then float_format=i64
665 if test $float_format = none
666 then float_h_file=Makefile.in
667 else float_h_file=float-$float_format.h
670 # Handle cpp installation.
671 if test x$enable_cpp != xno
673 tmake_file="$tmake_file t-install-cpp"
676 # Say what files are being used for the output code and MD file.
677 echo "Using \`$srcdir/config/$out_file' to output insns."
678 echo "Using \`$srcdir/config/$md_file' as machine description file."
681 for f in $tm_file; do
684 if test $count = ax; then
685 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
687 echo "Using the following target machine macro files:"
688 for f in $tm_file; do
689 echo " $srcdir/config/$f"
694 for f in $host_xm_file; do
697 if test $count = ax; then
698 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
700 echo "Using the following host machine macro files:"
701 for f in $host_xm_file; do
702 echo " $srcdir/config/$f"
706 if test "$host_xm_file" != "$build_xm_file"; then
708 for f in $build_xm_file; do
711 if test $count = ax; then
712 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
714 echo "Using the following build machine macro files:"
715 for f in $build_xm_file; do
716 echo " $srcdir/config/$f"
721 if test x$thread_file = x; then
722 if test x$target_thread_file != x; then
723 thread_file=$target_thread_file
729 # Set up the header files.
730 # $links is the list of header files to create.
731 # $vars is the list of shell variables with file names to include.
732 # auto-host.h is the file containing items generated by autoconf and is
733 # the first file included by config.h.
735 host_xm_file="auto-host.h gansidecl.h ${host_xm_file} hwint.h"
737 # If host=build, it is correct to have hconfig include auto-host.h
738 # as well. If host!=build, we are in error and need to do more
739 # work to find out the build config parameters.
740 if test x$host = x$build
742 build_xm_file="auto-host.h gansidecl.h ${build_xm_file} hwint.h"
744 # We create a subdir, then run autoconf in the subdir.
745 # To prevent recursion we set host and build for the new
746 # invocation of configure to the build for this invocation
753 /*) realsrcdir=${srcdir};;
754 *) realsrcdir=../${srcdir};;
756 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
757 --target=$target --host=$build --build=$build
759 # We just finished tests for the build machine, so rename
760 # the file auto-build.h in the gcc directory.
761 mv auto-host.h ../auto-build.h
764 build_xm_file="auto-build.h gansidecl.h ${build_xm_file} hwint.h"
767 xm_file="gansidecl.h ${xm_file}"
768 tm_file="gansidecl.h ${tm_file}"
770 vars="host_xm_file tm_file tm_p_file xm_file build_xm_file"
771 links="config.h tm.h tm_p.h tconfig.h hconfig.h"
772 defines="host_xm_defines null_defines null_defines xm_defines build_xm_defines"
775 if test -f config.status; then mv -f config.status config.bak; fi
778 while test -n "$vars"
780 set $vars; var=$1; shift; vars=$*
781 set $links; link=$1; shift; links=$*
782 set $defines; define=$1; shift; defines=$*
785 # Make sure the file is created, even if it is empty.
788 # Define TARGET_CPU_DEFAULT if the system wants one.
789 # This substitutes for lots of *.h files.
790 if test "$target_cpu_default" != "" -a $link = tm.h
792 echo "#define TARGET_CPU_DEFAULT ($target_cpu_default)" >>$link
795 for file in `eval echo '$'$var`; do
797 auto-host.h | auto-build.h )
800 echo '#ifdef IN_GCC' >>$link
803 echo "#include \"$file\"" >>$link
805 auto-host.h | auto-build.h )
808 echo '#endif' >>$link
813 for def in `eval echo '$'$define`; do
814 echo "#ifndef $def" >>$link
815 echo "#define $def" >>$link
816 echo "#endif" >>$link
820 # Truncate the target if necessary
821 if test x$host_truncate_target != x; then
822 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
825 # Get the version trigger filename from the toplevel
826 if test "${with_gcc_version_trigger+set}" = set; then
827 gcc_version_trigger=$with_gcc_version_trigger
829 gcc_version_trigger=${srcdir}/version.c
832 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
833 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
835 # Compile in configure arguments.
836 if test -f configargs.h ; then
837 # Being re-configured.
838 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
839 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
841 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
843 cat > configargs.h <<EOF
844 /* Generated automatically. */
845 static const char configuration_arguments[] = "$gcc_config_arguments";
849 # Internationalization
851 VERSION="$gcc_version"
852 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
853 [Define to the name of the distribution.])
854 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
855 [Define to the version of the distribution.])
861 # Enable NLS support by default
863 [ --enable-nls use Native Language Support (default)],
866 # if cross compiling, disable NLS support.
867 # It's not worth the trouble, at least for now.
869 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
870 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
874 # if NLS is enabled, also enable check in po subdir
875 if test $enable_nls = yes; then
884 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
886 # Windows32 Registry support for specifying GCC installation paths.
887 AC_ARG_ENABLE(win32-registry,
888 [ --disable-win32-registry
889 Disable lookup of installation paths in the
890 Registry on Windows hosts.
891 --enable-win32-registry Enable registry lookup (default).
892 --enable-win32-registry=KEY
893 Use KEY instead of GCC version as the last portion
894 of the registry key.],,)
896 AC_MSG_CHECKING(whether windows registry support is requested)
897 if test x$enable_win32_registry != xno; then
898 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
899 [Define to 1 if installation paths should be looked up in Windows32
900 Registry. Ignored on non windows32 hosts.])
906 # Check if user specified a different registry key.
907 case x${enable_win32_registry} in
910 gcc_cv_win32_registry_key="$VERSION"
913 # no registry lookup.
914 gcc_cv_win32_registry_key=''
917 # user-specified key.
918 gcc_cv_win32_registry_key="$enable_win32_registry"
922 if test x$enable_win32_registry != xno; then
923 AC_MSG_CHECKING(registry key on windows hosts)
924 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
925 [Define to be the last portion of registry key on windows hosts.])
926 AC_MSG_RESULT($gcc_cv_win32_registry_key)
929 # Get an absolute path to the GCC top-level source directory
935 # Conditionalize the makefile for this host machine.
936 # Make-host contains the concatenation of all host makefile fragments
937 # [there can be more than one]. This file is built by configure.frag.
938 host_overrides=Make-host
940 for f in .. ${host_xmake_file}
942 if test -f ${srcdir}/config/$f
944 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
948 # Conditionalize the makefile for this target machine.
949 # Make-target contains the concatenation of all host makefile fragments
950 # [there can be more than one]. This file is built by configure.frag.
951 target_overrides=Make-target
953 for f in .. ${tmake_file}
955 if test -f ${srcdir}/config/$f
957 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
961 # If the host doesn't support symlinks, modify CC in
962 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
963 # Otherwise, we can use "CC=$(CC)".
965 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
967 cc_set_by_configure="\$(CC)"
968 quoted_cc_set_by_configure="\$(CC)"
969 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
972 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
974 symbolic_link="cp -p"
978 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
979 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
980 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
984 out_object_file=`basename $out_file .c`.o
987 for f in $tm_file; do
990 tm_file_list="${tm_file_list} $f" ;;
991 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
996 for f in $host_xm_file; do
998 auto-host.h | gansidecl.h | hwint.h )
999 host_xm_file_list="${host_xm_file_list} $f" ;;
1000 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1005 for f in $build_xm_file; do
1007 auto-build.h | auto-host.h | gansidecl.h | hwint.h )
1008 build_xm_file_list="${build_xm_file_list} $f" ;;
1009 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1013 # Define macro CROSS_COMPILE in compilation
1014 # if this is a cross-compiler.
1015 # Also use all.cross instead of all.internal
1016 # and add cross-make to Makefile.
1017 cross_overrides="/dev/null"
1018 if test x$host != x$target
1020 cross_defines="CROSS=-DCROSS_COMPILE"
1021 cross_overrides="${topdir}/cross-make"
1024 # If this is a cross-compiler that does not
1025 # have its own set of headers then define
1028 # If this is using newlib, then define inhibit_libc in
1029 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1030 # libgcc.a, but that's OK because newlib should have its own version of
1033 if [test x$host != x$target] && [test x$with_headers = x]; then
1034 inhibit_libc=-Dinhibit_libc
1036 if [test x$with_newlib = xyes]; then
1037 inhibit_libc=-Dinhibit_libc
1040 AC_SUBST(inhibit_libc)
1042 # When building gcc with a cross-compiler, we need to fix a few things.
1043 # This must come after cross-make as we want all.build to override
1045 build_overrides="/dev/null"
1046 if test x$build != x$host
1048 build_overrides="${topdir}/build-make"
1051 # Expand extra_headers to include complete path.
1052 # This substitutes for lots of t-* files.
1054 if test "x$extra_headers" = x
1057 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1058 for file in $extra_headers;
1060 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1064 if test x$use_collect2 = xno; then
1068 # Add a definition of USE_COLLECT2 if system wants one.
1069 # Also tell toplev.c what to do.
1070 # This substitutes for lots of t-* files.
1071 if test x$use_collect2 = x
1076 will_use_collect2="collect2"
1077 maybe_use_collect2="-DUSE_COLLECT2"
1081 # Set MD_DEPS if the real md file is in md.pre-cpp.
1082 # Set MD_CPP to the cpp to pass the md file through. Md files use ';'
1083 # for line oriented comments, so we must always use a GNU cpp. If
1084 # building gcc with a cross compiler, use the cross compiler just
1085 # built. Otherwise, we can use the cpp just built.
1087 if test "x$md_cppflags" = x
1089 md_file_sub=$srcdir/config/$md_file
1094 # If we have gas in the build tree, make a link to it.
1095 if test -f ../gas/Makefile; then
1096 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1099 # If we have nm in the build tree, make a link to it.
1100 if test -f ../binutils/Makefile; then
1101 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1104 # If we have ld in the build tree, make a link to it.
1105 if test -f ../ld/Makefile; then
1106 # if test x$use_collect2 = x; then
1107 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1109 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1113 # Figure out what assembler we will be using.
1114 AC_MSG_CHECKING(what assembler to use)
1116 gcc_cv_gas_major_version=
1117 gcc_cv_gas_minor_version=
1118 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1119 if test -x "$DEFAULT_ASSEMBLER"; then
1120 gcc_cv_as="$DEFAULT_ASSEMBLER"
1121 elif test -x "$AS"; then
1123 elif test -x as$host_exeext; then
1124 # Build using assembler in the current directory.
1125 gcc_cv_as=./as$host_exeext
1126 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1127 # Single tree build which includes gas.
1128 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1131 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1133 if test x$gcc_cv_gas_version != x; then
1138 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1139 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1143 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1145 # Search the same directories that the installed compiler will
1146 # search. Else we may find the wrong assembler and lose. If we
1147 # do not find a suitable assembler binary, then try the user's
1150 # Also note we have to check MD_EXEC_PREFIX before checking the
1151 # user's path. Unfortunately, there is no good way to get at the
1152 # value of MD_EXEC_PREFIX here. So we do a brute force search
1153 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1154 # to be fixed as part of the make/configure rewrite too.
1156 if test "x$exec_prefix" = xNONE; then
1157 if test "x$prefix" = xNONE; then
1158 test_prefix=/usr/local
1163 test_prefix=$exec_prefix
1166 # If the loop below does not find an assembler, then use whatever
1167 # one we can find in the users's path.
1171 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1172 $test_prefix/lib/gcc-lib/$target \
1173 /usr/lib/gcc/$target/$gcc_version \
1174 /usr/lib/gcc/$target \
1175 $test_prefix/$target/bin/$target/$gcc_version \
1176 $test_prefix/$target/bin \
1181 /bsd43/usr/lib/cmplrs/cc \
1182 /usr/cross64/usr/bin \
1183 /usr/lib/cmplrs/cc \
1184 /sysv/usr/lib/cmplrs/cc \
1185 /svr4/usr/lib/cmplrs/cc \
1188 for dir in $test_dirs; do
1189 if test -f $dir/as$host_exeext; then
1190 gcc_cv_as=$dir/as$host_exeext
1195 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1196 AC_MSG_RESULT("newly built gas")
1198 AC_MSG_RESULT($gcc_cv_as)
1201 # Figure out what nm we will be using.
1202 AC_MSG_CHECKING(what nm to use)
1203 if test -x nm$host_exeext; then
1204 gcc_cv_nm=./nm$host_exeext
1205 elif test x$host = x$target; then
1207 gcc_cv_nm=nm$host_exeext
1209 AC_MSG_RESULT($gcc_cv_nm)
1211 # Figure out what assembler alignment features are present.
1212 AC_MSG_CHECKING(assembler alignment features)
1213 gcc_cv_as_alignment_features=none
1214 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1215 # Gas version 2.6 and later support for .balign and .p2align.
1216 # bytes to skip when using .p2align.
1217 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1218 gcc_cv_as_alignment_features=".balign and .p2align"
1219 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1221 # Gas version 2.8 and later support specifying the maximum
1222 # bytes to skip when using .p2align.
1223 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1224 gcc_cv_as_alignment_features=".p2align including maximum skip"
1225 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1227 elif test x$gcc_cv_as != x; then
1228 # Check if we have .balign and .p2align
1229 echo ".balign 4" > conftest.s
1230 echo ".p2align 2" >> conftest.s
1231 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1232 gcc_cv_as_alignment_features=".balign and .p2align"
1233 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1235 rm -f conftest.s conftest.o
1236 # Check if specifying the maximum bytes to skip when
1237 # using .p2align is supported.
1238 echo ".p2align 4,,7" > conftest.s
1239 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1240 gcc_cv_as_alignment_features=".p2align including maximum skip"
1241 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1243 rm -f conftest.s conftest.o
1245 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1247 AC_MSG_CHECKING(assembler subsection support)
1248 gcc_cv_as_subsections=no
1249 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1250 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1251 gcc_cv_as_subsections="working .subsection -1"
1253 elif test x$gcc_cv_as != x; then
1254 # Check if we have .subsection
1255 echo ".subsection 1" > conftest.s
1256 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1257 gcc_cv_as_subsections=".subsection"
1258 if test x$gcc_cv_nm != x; then
1259 cat > conftest.s <<EOF
1260 conftest_label1: .word 0
1262 conftest_label2: .word 0
1265 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1266 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1267 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1268 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1271 gcc_cv_as_subsections="working .subsection -1"
1276 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1278 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1279 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1280 [Define if your assembler supports .subsection and .subsection -1 starts
1281 emitting at the beginning of your section.])
1283 AC_MSG_RESULT($gcc_cv_as_subsections)
1285 AC_MSG_CHECKING(assembler weak support)
1287 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1288 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1289 gcc_cv_as_weak="yes"
1291 elif test x$gcc_cv_as != x; then
1292 # Check if we have .weak
1293 echo " .weak foobar" > conftest.s
1294 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1295 gcc_cv_as_weak="yes"
1297 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1299 if test x"$gcc_cv_as_weak" = xyes; then
1300 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1302 AC_MSG_RESULT($gcc_cv_as_weak)
1304 AC_MSG_CHECKING(assembler hidden support)
1306 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1307 if test "$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
1308 gcc_cv_as_hidden="yes"
1310 elif test x$gcc_cv_as != x; then
1311 # Check if we have .hidden
1312 echo " .hidden foobar" > conftest.s
1313 echo "foobar:" >> conftest.s
1314 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1315 gcc_cv_as_hidden="yes"
1317 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1319 if test x"$gcc_cv_as_hidden" = xyes; then
1320 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1321 [Define if your assembler supports .hidden.])
1323 AC_MSG_RESULT($gcc_cv_as_hidden)
1327 AC_CACHE_CHECK([assembler .register pseudo-op support],
1328 gcc_cv_as_register_pseudo_op, [
1329 gcc_cv_as_register_pseudo_op=unknown
1330 if test x$gcc_cv_as != x; then
1331 # Check if we have .register
1332 echo ".register %g2, #scratch" > conftest.s
1333 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1334 gcc_cv_as_register_pseudo_op=yes
1336 gcc_cv_as_register_pseudo_op=no
1338 rm -f conftest.s conftest.o
1341 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1342 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1343 [Define if your assembler supports .register.])
1346 AC_CACHE_CHECK([assembler supports -relax],
1347 gcc_cv_as_relax_opt, [
1348 gcc_cv_as_relax_opt=unknown
1349 if test x$gcc_cv_as != x; then
1350 # Check if gas supports -relax
1351 echo ".text" > conftest.s
1352 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1353 gcc_cv_as_relax_opt=yes
1355 gcc_cv_as_relax_opt=no
1357 rm -f conftest.s conftest.o
1360 if test "x$gcc_cv_as_relax_opt" = xyes; then
1361 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1362 [Define if your assembler supports -relax option.])
1367 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1368 gcc_cv_as_flags64, [
1369 if test -n "$gcc_cv_as"; then
1370 echo ".xword foo" > conftest.s
1371 gcc_cv_as_flags64=no
1372 for flag in "-xarch=v9" "-64 -Av9"; do
1373 if $gcc_cv_as $flag -o conftest.o conftest.s \
1374 > /dev/null 2>&1; then
1375 gcc_cv_as_flags64=$flag
1379 rm -f conftest.s conftest.o
1381 if test "$gas" = yes; then
1382 gcc_cv_as_flags64="-64 -Av9"
1384 gcc_cv_as_flags64="-xarch=v9"
1388 if test "x$gcc_cv_as_flags64" = xno; then
1390 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1391 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1394 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1395 [Define if the assembler supports 64bit sparc.])
1398 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1402 if test "x$gcc_cv_as_flags64" != xno; then
1403 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1404 gcc_cv_as_offsetable_lo10, [
1405 gcc_cv_as_offsetable_lo10=unknown
1406 if test "x$gcc_cv_as" != x; then
1407 # Check if assembler has offsetable %lo()
1408 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1409 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1410 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1412 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1413 > /dev/null 2>&1; then
1414 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1415 gcc_cv_as_offsetable_lo10=no
1417 gcc_cv_as_offsetable_lo10=yes
1420 gcc_cv_as_offsetable_lo10=no
1422 rm -f conftest.s conftest.o conftest1.s conftest1.o
1425 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1426 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1427 [Define if your assembler supports offsetable %lo().])
1435 AC_MSG_CHECKING(assembler instructions)
1436 gcc_cv_as_instructions=
1437 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1438 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1439 gcc_cv_as_instructions="filds fists"
1441 elif test x$gcc_cv_as != x; then
1442 set "filds fists" "filds mem; fists mem"
1445 echo "$2" > conftest.s
1446 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1447 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1451 rm -f conftest.s conftest.o
1453 if test x"$gcc_cv_as_instructions" != x; then
1454 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1456 AC_MSG_RESULT($gcc_cv_as_instructions)
1460 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1461 gcc_cv_as_dwarf2_debug_line=no
1462 # ??? Not all targets support dwarf2 debug_line, even within a version
1463 # of gas. Moreover, we need to emit a valid instruction to trigger any
1464 # info to the output file. So, as supported targets are added to gas 2.11,
1465 # add some instruction here to (also) show we expect this might work.
1466 # ??? Once 2.11 is released, probably need to add first known working
1467 # version to the per-target configury.
1469 i?86*-*-* | mips*-*-* | alpha*-*-*)
1476 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1478 if test "$gcc_cv_gas_major_version" -eq 2 \
1479 -a "$gcc_cv_gas_minor_version" -ge 11 \
1480 -o "$gcc_cv_gas_major_version" -gt 2 \
1481 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1482 && test x"$insn" != x ; then
1483 gcc_cv_as_dwarf2_debug_line="yes"
1485 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1486 echo ' .file 0 "conftest.s"' > conftest.s
1487 echo ' .loc 0 3 0' >> conftest.s
1488 echo " $insn" >> conftest.s
1489 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1490 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1491 gcc_cv_as_dwarf2_debug_line="yes"
1493 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1495 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1496 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1497 [Define if your assembler supports dwarf2 .file/.loc directives.])
1499 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1501 # Figure out what language subdirectories are present.
1502 # Look if the user specified --enable-languages="..."; if not, use
1503 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1505 if test x"${enable_languages+set}" != xset; then
1506 if test x"${LANGUAGES+set}" = xset; then
1507 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1509 enable_languages=all
1512 if test x"${enable_languages}" = x; then
1513 AC_MSG_ERROR([--enable-languages needs at least one argument])
1517 for lang in ${srcdir}/*/config-lang.in ..
1521 # The odd quoting in the next line works around
1522 # an apparent bug in bash 1.12 on linux.
1524 ${srcdir}/[*]/config-lang.in) ;;
1526 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1527 if test "x$lang_alias" = x
1529 echo "$lang doesn't set \$language." 1>&2
1532 if test x"${enable_languages}" = xall && test x"${lang_alias}" != xCHILL; then
1535 case "${enable_languages}" in
1536 ${lang_alias} | "${lang_alias},"* | *",${lang_alias},"* | *",${lang_alias}" )
1544 if test x"${add_this_lang}" = xyes; then
1546 ${srcdir}/ada/config-lang.in)
1547 if test x$gnat = xyes ; then
1548 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1552 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1561 # Make gthr-default.h if we have a thread file.
1563 if test $thread_file != single; then
1564 rm -f gthr-default.h
1565 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1566 gthread_flags=-DHAVE_GTHR_DEFAULT
1568 AC_SUBST(gthread_flags)
1570 # Find out what GC implementation we want, or may, use.
1572 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1573 with the compiler.],
1579 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1582 [if test $ac_cv_func_mmap_anywhere = yes \
1583 || test $ac_cv_func_valloc = yes; then
1589 echo "Using $GGC for garbage collection."
1591 # Use the system's zlib library.
1593 zlibinc="-I\$(srcdir)/../zlib"
1594 AC_ARG_WITH(system-zlib,
1595 [ --with-system-zlib use installed libz],
1602 # Build a new-abi (c++) system
1603 AC_ARG_ENABLE(new-gxx-abi,
1604 [ --enable-new-gxx-abi
1605 select the new abi for g++. You must select an ABI
1606 at configuration time, so that the correct runtime
1607 support is built. You cannot mix ABIs.],
1609 enable_new_gxx_abi=yes)
1611 if test x$enable_new_gxx_abi = xyes; then
1612 AC_DEFINE(ENABLE_NEW_GXX_ABI, 1,
1613 [Define if you want to always select the new-abi for g++.])
1614 GXX_ABI_FLAG='-fnew-abi'
1618 AC_SUBST(GXX_ABI_FLAG)
1620 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, $ac_esn,
1621 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1622 AC_SUBST(HAVE_LIBSTDCXX_V3)
1624 dnl Very limited version of automake's enable-maintainer-mode
1626 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1627 dnl maintainer-mode is disabled by default
1628 AC_ARG_ENABLE(maintainer-mode,
1629 [ --enable-maintainer-mode enable make rules and dependencies not useful
1630 (and sometimes confusing) to the casual installer],
1631 maintainer_mode=$enableval,
1634 AC_MSG_RESULT($maintainer_mode)
1636 if test "$maintainer_mode" = "yes"; then
1643 # Make empty files to contain the specs and options for each language.
1644 # Then add #include lines to for a compiler that has specs and/or options.
1649 rm -f specs.h options.h gencheck.h
1650 touch specs.h options.h gencheck.h
1651 for subdir in . $subdirs
1653 if test -f $srcdir/$subdir/lang-specs.h; then
1654 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1655 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1657 if test -f $srcdir/$subdir/lang-options.h; then
1658 echo "#include \"$subdir/lang-options.h\"" >>options.h
1659 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1661 if test -f $srcdir/$subdir/$subdir-tree.def; then
1662 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1663 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1667 # These (without "all_") are set in each config-lang.in.
1668 # `language' must be a single word so is spelled singularly.
1674 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1675 # List of language makefile fragments.
1680 # Add the language fragments.
1681 # Languages are added via two mechanisms. Some information must be
1682 # recorded in makefile variables, these are defined in config-lang.in.
1683 # We accumulate them and plug them into the main Makefile.
1684 # The other mechanism is a set of hooks for each of the main targets
1685 # like `clean', `install', etc.
1687 language_fragments="Make-lang"
1688 language_hooks="Make-hooks"
1690 for s in .. $subdirs
1702 . ${srcdir}/$s/config-lang.in
1703 if test "x$language" = x
1705 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1708 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1709 if test -f ${srcdir}/$s/Makefile.in
1710 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1712 all_languages="$all_languages $language"
1713 if test "x$boot_language" = xyes
1715 all_boot_languages="$all_boot_languages $language"
1717 all_compilers="$all_compilers $compilers"
1718 all_stagestuff="$all_stagestuff $stagestuff"
1719 all_diff_excludes="$all_diff_excludes $diff_excludes"
1720 all_headers="$all_headers $headers"
1721 all_outputs="$all_outputs $outputs"
1722 all_lib2funcs="$all_lib2funcs $lib2funcs"
1726 # Since we can't use `::' targets, we link each language in
1727 # with a set of hooks, reached indirectly via lang.${target}.
1731 target_list="all.build all.cross start.encap rest.encap \
1733 install-normal install-common install-info install-man \
1735 mostlyclean clean distclean extraclean maintainer-clean \
1736 stage1 stage2 stage3 stage4"
1737 for t in $target_list
1740 for lang in .. $all_languages
1742 if test $lang != ".."; then
1746 echo "lang.$t: $x" >> Make-hooks
1749 # If we're not building in srcdir, create .gdbinit.
1751 if test ! -f Makefile.in; then
1752 echo "dir ." > .gdbinit
1753 echo "dir ${srcdir}" >> .gdbinit
1754 if test x$gdb_needs_out_file_path = xyes
1756 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1758 if test "x$subdirs" != x; then
1761 echo "dir ${srcdir}/$s" >> .gdbinit
1764 echo "source ${srcdir}/.gdbinit" >> .gdbinit
1767 # Define variables host_canonical and build_canonical
1768 # because some Cygnus local changes in the Makefile depend on them.
1769 build_canonical=${build}
1770 host_canonical=${host}
1772 if test "${host}" != "${target}" ; then
1773 target_subdir=${target}/
1775 AC_SUBST(build_canonical)
1776 AC_SUBST(host_canonical)
1777 AC_SUBST(target_subdir)
1779 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1780 # absolute path for gcc_tooldir based on inserting the number of up-directory
1781 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1782 # $(libsubdir)/@(unlibsubdir) based path.
1783 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1784 # make and thus we'd get different behavior depending on where we built the
1786 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1787 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1789 changequote(<<, >>)dnl
1790 # An explanation of the sed strings:
1791 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1792 # -e 's|/$||' match a trailing forward slash and eliminates it
1793 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1794 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1796 # (*) Note this pattern overwrites the first character of the string
1797 # with a forward slash if one is not already present. This is not a
1798 # problem because the exact names of the sub-directories concerned is
1799 # unimportant, just the number of them matters.
1801 # The practical upshot of these patterns is like this:
1803 # prefix exec_prefix result
1804 # ------ ----------- ------
1806 # /foo/ /foo/bar ../
1807 # /foo /foo/bar/ ../
1808 # /foo/ /foo/bar/ ../
1809 # /foo /foo/bar/ugg ../../
1812 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1813 changequote([, ])dnl
1815 AC_SUBST(gcc_tooldir)
1818 # Nothing to do for FLOAT_H, float_format already handled.
1822 # Process the language and host/target makefile fragments.
1823 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1825 # Substitute configuration variables
1827 AC_SUBST(all_boot_languages)
1828 AC_SUBST(all_compilers)
1829 AC_SUBST(all_diff_excludes)
1830 AC_SUBST(all_headers)
1831 AC_SUBST(all_lang_makefiles)
1832 AC_SUBST(all_languages)
1833 AC_SUBST(all_lib2funcs)
1834 AC_SUBST(all_stagestuff)
1835 AC_SUBST(build_exeext)
1836 AC_SUBST(build_install_headers_dir)
1837 AC_SUBST(build_xm_file_list)
1838 AC_SUBST(cc_set_by_configure)
1839 AC_SUBST(quoted_cc_set_by_configure)
1840 AC_SUBST(cpp_install_dir)
1841 AC_SUBST(dep_host_xmake_file)
1842 AC_SUBST(dep_tmake_file)
1843 AC_SUBST(extra_c_flags)
1844 AC_SUBST(extra_headers_list)
1845 AC_SUBST(extra_objs)
1846 AC_SUBST(extra_parts)
1847 AC_SUBST(extra_passes)
1848 AC_SUBST(extra_programs)
1849 AC_SUBST(float_h_file)
1850 AC_SUBST(gcc_config_arguments)
1851 AC_SUBST(gcc_gxx_include_dir)
1852 AC_SUBST(gcc_version)
1853 AC_SUBST(gcc_version_full)
1854 AC_SUBST(gcc_version_trigger)
1855 AC_SUBST(host_exeext)
1856 AC_SUBST(host_extra_gcc_objs)
1857 AC_SUBST(host_xm_file_list)
1859 AC_SUBST(lang_options_files)
1860 AC_SUBST(lang_specs_files)
1861 AC_SUBST(lang_tree_files)
1862 AC_SUBST(local_prefix)
1863 AC_SUBST(maybe_use_collect2)
1865 AC_SUBST(objc_boehm_gc)
1867 AC_SUBST(out_object_file)
1868 AC_SUBST(stage_prefix_set_by_configure)
1869 AC_SUBST(symbolic_link)
1870 AC_SUBST(thread_file)
1871 AC_SUBST(tm_file_list)
1872 AC_SUBST(will_use_collect2)
1875 AC_SUBST_FILE(target_overrides)
1876 AC_SUBST_FILE(host_overrides)
1877 AC_SUBST(cross_defines)
1878 AC_SUBST_FILE(cross_overrides)
1879 AC_SUBST_FILE(build_overrides)
1880 AC_SUBST_FILE(language_fragments)
1881 AC_SUBST_FILE(language_hooks)
1883 # Echo that links are built
1884 if test x$host = x$target
1892 if test x$host != x$build
1894 str3=" on a $build system"
1897 if test "x$str2" != x || test "x$str3" != x
1902 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1904 if test "x$str2" != x || test "x$str3" != x
1906 echo " ${str2}${str3}." 1>&2
1909 # Truncate the target if necessary
1910 if test x$host_truncate_target != x; then
1911 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1914 # Configure the subdirectories
1915 # AC_CONFIG_SUBDIRS($subdirs)
1917 # Create the Makefile
1918 # and configure language subdirectories
1919 AC_OUTPUT($all_outputs,
1921 case x$CONFIG_HEADERS in
1922 xauto-host.h:config.in)
1925 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1926 # bootstrapping and the installation procedure can still use
1927 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
1928 # FLAGS_TO_PASS has been modified to solve the problem there.
1929 # This is virtually a duplicate of what happens in configure.lang; we do
1930 # an extra check to make sure this only happens if ln -s can be used.
1931 if test "$symbolic_link" = "ln -s"; then
1932 for d in .. ${subdirs} ; do
1933 if test $d != ..; then
1936 for t in stage1 stage2 stage3 stage4 include
1939 $symbolic_link ../$t $t 2>/dev/null
1945 # Avoid having to add intl to our include paths.
1946 if test -f intl/libintl.h; then
1947 echo creating libintl.h
1948 echo '#include "intl/libintl.h"' >libintl.h
1955 target_alias='${target_alias}'
1957 subdirs='${subdirs}'
1958 symbolic_link='${symbolic_link}'
1959 program_transform_set='${program_transform_set}'
1960 program_transform_name='${program_transform_name}'
1961 dep_host_xmake_file='${dep_host_xmake_file}'
1962 host_xmake_file='${host_xmake_file}'
1963 dep_tmake_file='${dep_tmake_file}'
1964 tmake_file='${tmake_file}'
1965 thread_file='${thread_file}'
1966 gcc_config_arguments='${gcc_config_arguments}'
1967 gcc_version='${gcc_version}'
1968 gcc_version_full='${gcc_version_full}'
1969 gcc_version_trigger='${gcc_version_trigger}'
1970 local_prefix='${local_prefix}'
1971 build_install_headers_dir='${build_install_headers_dir}'
1972 build_exeext='${build_exeext}'
1973 host_exeext='${host_exeext}'
1974 out_file='${out_file}'
1975 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
1976 SET_MAKE='${SET_MAKE}'
1977 target_list='${target_list}'
1978 target_overrides='${target_overrides}'
1979 host_overrides='${host_overrides}'
1980 cross_defines='${cross_defines}'
1981 cross_overrides='${cross_overrides}'
1982 build_overrides='${build_overrides}'
1983 cpp_install_dir='${cpp_install_dir}'