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$local_prefix = x; then
151 local_prefix=/usr/local
154 # Build a new-libstdc++ system (ie libstdc++-v3)
155 AC_MSG_CHECKING([for libstdc++ to install])
156 AC_ARG_ENABLE(libstdcxx-v3,
157 [ --enable-libstdcxx-v3
158 enable libstdc++-v3 for building and installation],
159 [enable_libstdcxx_v3="$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}/.. . ${srcdir}/../config.if
190 changequote(<<, >>)dnl
191 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
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=$withval
274 # Enable Multibyte Characters for C/C++
275 AC_ARG_ENABLE(c-mbchar,
276 [ --enable-c-mbchar Enable multibyte characters for C and C++.],
277 if test x$enable_c_mbchar != xno; then
278 AC_DEFINE(MULTIBYTE_CHARS, 1,
279 [Define if you want the C and C++ compilers to support multibyte
280 character sets for source code.])
284 # Pass with no value to take the default
285 # Pass with a value to specify a thread package
286 AC_ARG_ENABLE(threads,
287 [ --enable-threads enable thread usage for target GCC.
288 --enable-threads=LIB use LIB thread package for target GCC.],,
291 enable_threads_flag=$enable_threads
292 # Check if a valid thread package
293 case x${enable_threads_flag} in
296 target_thread_file='single'
300 target_thread_file=''
302 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
303 xsolaris | xwin32 | xdce | xvxworks | xaix)
304 target_thread_file=$enable_threads_flag
307 echo "$enable_threads is an unknown thread package" 1>&2
312 AC_ARG_ENABLE(objc-gc,
313 [ --enable-objc-gc enable the use of Boehm's garbage collector with
314 the GNU Objective-C runtime.],
315 if test x$enable_objc_gc = xno; then
323 [ --with-dwarf2 force the default debug format to be DWARF2.],
324 dwarf2="$with_dwarf2",
327 AC_ARG_ENABLE(shared,
328 [ --disable-shared don't provide a shared libgcc.],
329 [], [enable_shared=yes])
330 AC_SUBST(enable_shared)
332 # Determine the host, build, and target systems
335 # Find the native compiler
338 # autoconf is lame and doesn't give us any substitution variable for this.
339 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
340 NO_MINUS_C_MINUS_O=yes
342 OUTPUT_OPTION='-o $@'
344 AC_SUBST(NO_MINUS_C_MINUS_O)
345 AC_SUBST(OUTPUT_OPTION)
349 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
350 ac_cv_prog_cc_no_long_long,
351 [save_CFLAGS="$CFLAGS"
352 CFLAGS="-Wno-long-long"
353 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
354 ac_cv_prog_cc_no_long_long=no)
355 CFLAGS="$save_CFLAGS"])
357 if test $ac_cv_prog_cc_no_long_long = yes; then
358 strict1_warn="-pedantic -Wno-long-long"
360 AC_SUBST(strict1_warn)
362 # If the native compiler is GCC, we can enable warnings even in stage1.
363 # That's useful for people building cross-compilers, or just running a
366 if test "x$GCC" = "xyes"; then
367 warn_cflags='$(GCC_WARN_CFLAGS)'
369 AC_SUBST(warn_cflags)
371 # Stage specific cflags for build.
377 stage1_cflags="-Wa,-J"
383 AC_SUBST(stage1_cflags)
387 AC_MSG_CHECKING([whether a default assembler was specified])
388 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
389 if test x"$gas_flag" = x"no"; then
390 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
392 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
398 AC_MSG_CHECKING([whether a default linker was specified])
399 if test x"${DEFAULT_LINKER+set}" = x"set"; then
400 if test x"$gnu_ld_flag" = x"no"; then
401 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
403 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
409 AC_MSG_CHECKING(for GNU C library)
410 AC_CACHE_VAL(gcc_cv_glibc,
412 [#include <features.h>],[
413 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
414 #error Not a GNU C library system
418 AC_MSG_RESULT($gcc_cv_glibc)
419 if test $gcc_cv_glibc = yes; then
420 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
425 # Find some useful tools
437 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
438 fcntl.h unistd.h stab.h sys/file.h sys/time.h \
439 sys/resource.h sys/param.h sys/times.h sys/stat.h \
440 direct.h malloc.h langinfo.h iconv.h)
442 # Check for thread headers.
443 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
444 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
446 # See if GNAT has been installed
447 AC_CHECK_PROG(gnat, gnatbind, yes, no)
449 # See if we have the mktemp command.
450 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
452 # Do we have a single-tree copy of texinfo?
453 if test -f $srcdir/../texinfo/Makefile.in; then
454 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
455 gcc_cv_prog_makeinfo_modern=yes
456 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
458 # See if makeinfo has been installed and is modern enough
459 # that we can use it.
460 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
461 [GNU texinfo.* \([0-9][0-9.]*\)],
465 if test $gcc_cv_prog_makeinfo_modern = no; then
467 *** Makeinfo is missing or too old.
468 *** Info documentation will not be built.])
471 BUILD_INFO=info AC_SUBST(BUILD_INFO)
474 # Is pod2man recent enough to regenerate manpages?
475 AC_MSG_CHECKING([for recent Pod::Man])
476 if perl -e 'use 1.10 Pod::Man' >/dev/null 2>&1; then
478 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
485 dnl Don't use AC_PROG_LEX; we insist on flex.
486 dnl LEXLIB is not useful in gcc.
487 if test -f $srcdir/../flex/skel.c; then
488 FLEX='$(objdir)/../flex/flex'
490 AC_CHECK_PROG(FLEX, flex, flex, false)
494 # The -L switch is so bison can find its skeleton file.
495 if test -f $srcdir/../bison/bison.simple; then
496 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
498 AC_CHECK_PROG(BISON, bison, bison, false)
501 # See if the stage1 system preprocessor understands the ANSI C
502 # preprocessor stringification operator.
505 # Use <inttypes.h> only if it exists,
506 # doesn't clash with <sys/types.h>, and declares intmax_t.
507 AC_MSG_CHECKING(for inttypes.h)
508 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
510 [#include <sys/types.h>
511 #include <inttypes.h>],
513 [gcc_cv_header_inttypes_h=yes],
514 gcc_cv_header_inttypes_h=no)])
515 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
516 if test $gcc_cv_header_inttypes_h = yes; then
517 AC_DEFINE(HAVE_INTTYPES_H, 1,
518 [Define if you have a working <inttypes.h> header file.])
522 # Determine if enumerated bitfields are unsigned. ISO C says they can
523 # be either signed or unsigned.
525 AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
526 [AC_TRY_RUN(#include <stdlib.h>
527 enum t { BLAH = 128 } ;
528 struct s_t { enum t member : 8; } s ;
532 if (s.member < 0) exit(1);
535 }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
536 if test $gcc_cv_enum_bf_unsigned = yes; then
537 AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
538 [Define if enumerated bitfields are treated as unsigned values.])
541 AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy \
542 strchr strrchr kill getrlimit setrlimit atoll atoq \
543 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
544 fputs_unlocked getrusage valloc iconv nl_langinfo)
546 AC_CHECK_TYPE(ssize_t, int)
548 # Try to determine the array type of the second argument of getgroups
549 # for the target system (int or gid_t).
551 if test "${target}" = "${build}"; then
552 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
555 # This condition may need some tweaking. It should include all
556 # targets where the array type of the second argument of getgroups
557 # is int and the type of gid_t is not equivalent to int.
558 *-*-sunos* | *-*-ultrix*)
559 TARGET_GETGROUPS_T=int
562 TARGET_GETGROUPS_T=gid_t
566 AC_SUBST(TARGET_GETGROUPS_T)
568 gcc_AC_FUNC_VFPRINTF_DOPRNT
569 gcc_AC_FUNC_PRINTF_PTR
573 # Under some versions of uwin, vfork is notoriously buggy and the test
574 # can hang configure; on other versions, vfork exists just as a stub.
575 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
576 ac_cv_func_vfork_works=no
580 AC_FUNC_MMAP_ANYWHERE
583 # We will need to find libiberty.h and ansidecl.h
584 saved_CFLAGS="$CFLAGS"
585 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
586 gcc_AC_CHECK_DECLS(bcopy \
587 getenv atol sbrk abort atof getcwd getwd \
588 strsignal putc_unlocked fputs_unlocked strstr environ \
589 malloc realloc calloc free basename getopt, , ,[
590 #include "gansidecl.h"
591 #include "system.h"])
593 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
594 #include "gansidecl.h"
596 #ifdef HAVE_SYS_RESOURCE_H
597 #include <sys/resource.h>
601 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
602 CFLAGS="$saved_CFLAGS"
604 # mkdir takes a single argument on some systems.
605 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
615 build_install_headers_dir=install-headers-tar
620 host_truncate_target=
623 # Decode the host machine, then the target machine.
624 # For the host machine, we save the xm_file variable as host_xm_file;
625 # then we decode the target machine and forget everything else
626 # that came from the host machine.
627 for machine in $build $host $target; do
628 . ${srcdir}/config.gcc
631 extra_objs="${host_extra_objs} ${extra_objs}"
633 # Default the target-machine variables that were not explicitly set.
634 if test x"$tm_file" = x
635 then tm_file=$cpu_type/$cpu_type.h; fi
637 if test x"$extra_headers" = x
638 then extra_headers=; fi
640 if test x"$xm_file" = x
641 then xm_file=$cpu_type/xm-$cpu_type.h; fi
643 if test x$md_file = x
644 then md_file=$cpu_type/$cpu_type.md; fi
646 if test x$out_file = x
647 then out_file=$cpu_type/$cpu_type.c; fi
649 if test x"$tmake_file" = x
650 then tmake_file=$cpu_type/t-$cpu_type
653 if test x"$dwarf2" = xyes
654 then tm_file="$tm_file tm-dwarf2.h"
657 if test x$float_format = x
658 then float_format=i64
661 if test $float_format = none
662 then float_h_file=Makefile.in
663 else float_h_file=float-$float_format.h
666 # Handle cpp installation.
667 if test x$enable_cpp != xno
669 tmake_file="$tmake_file t-install-cpp"
672 # Say what files are being used for the output code and MD file.
673 echo "Using \`$srcdir/config/$out_file' to output insns."
674 echo "Using \`$srcdir/config/$md_file' as machine description file."
677 for f in $tm_file; do
680 if test $count = ax; then
681 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
683 echo "Using the following target machine macro files:"
684 for f in $tm_file; do
685 echo " $srcdir/config/$f"
690 for f in $host_xm_file; do
693 if test $count = ax; then
694 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
696 echo "Using the following host machine macro files:"
697 for f in $host_xm_file; do
698 echo " $srcdir/config/$f"
702 if test "$host_xm_file" != "$build_xm_file"; then
704 for f in $build_xm_file; do
707 if test $count = ax; then
708 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
710 echo "Using the following build machine macro files:"
711 for f in $build_xm_file; do
712 echo " $srcdir/config/$f"
717 if test x$thread_file = x; then
718 if test x$target_thread_file != x; then
719 thread_file=$target_thread_file
725 # Set up the header files.
726 # $links is the list of header files to create.
727 # $vars is the list of shell variables with file names to include.
728 # auto-host.h is the file containing items generated by autoconf and is
729 # the first file included by config.h.
731 host_xm_file="auto-host.h gansidecl.h ${host_xm_file} hwint.h"
733 # If host=build, it is correct to have hconfig include auto-host.h
734 # as well. If host!=build, we are in error and need to do more
735 # work to find out the build config parameters.
736 if test x$host = x$build
738 build_xm_file="auto-host.h gansidecl.h ${build_xm_file} hwint.h"
740 # We create a subdir, then run autoconf in the subdir.
741 # To prevent recursion we set host and build for the new
742 # invocation of configure to the build for this invocation
749 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
750 *) realsrcdir=../${srcdir};;
752 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
753 --target=$target --host=$build --build=$build
755 # We just finished tests for the build machine, so rename
756 # the file auto-build.h in the gcc directory.
757 mv auto-host.h ../auto-build.h
760 build_xm_file="auto-build.h gansidecl.h ${build_xm_file} hwint.h"
763 xm_file="gansidecl.h ${xm_file}"
764 tm_file="gansidecl.h ${tm_file}"
766 vars="host_xm_file tm_file tm_p_file xm_file build_xm_file"
767 links="config.h tm.h tm_p.h tconfig.h hconfig.h"
768 defines="host_xm_defines null_defines null_defines xm_defines build_xm_defines"
771 if test -f config.status; then mv -f config.status config.bak; fi
774 while test -n "$vars"
776 set $vars; var=$1; shift; vars=$*
777 set $links; link=$1; shift; links=$*
778 set $defines; define=$1; shift; defines=$*
781 # Make sure the file is created, even if it is empty.
784 # Define TARGET_CPU_DEFAULT if the system wants one.
785 # This substitutes for lots of *.h files.
786 if test "$target_cpu_default" != "" -a $link = tm.h
788 echo "#define TARGET_CPU_DEFAULT ($target_cpu_default)" >>$link
791 for file in `eval echo '$'$var`; do
793 auto-host.h | auto-build.h )
796 echo '#ifdef IN_GCC' >>$link
799 echo "#include \"$file\"" >>$link
801 auto-host.h | auto-build.h )
804 echo '#endif' >>$link
809 for def in `eval echo '$'$define`; do
810 echo "#ifndef $def" >>$link
811 echo "#define $def" >>$link
812 echo "#endif" >>$link
817 # Include insn-codes.h last, because it includes machmode.h,
818 # and we want EXTRA_CC_MODES to be taken into account.
819 echo "#ifndef GENERATOR_FILE" >>$link
820 echo "#include \"insn-codes.h\"" >>$link
821 echo "#endif" >>$link
825 # Truncate the target if necessary
826 if test x$host_truncate_target != x; then
827 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
830 # Get the version trigger filename from the toplevel
831 if test "${with_gcc_version_trigger+set}" = set; then
832 gcc_version_trigger=$with_gcc_version_trigger
834 gcc_version_trigger=${srcdir}/version.c
837 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
838 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
840 # Compile in configure arguments.
841 if test -f configargs.h ; then
842 # Being re-configured.
843 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
844 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
846 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
848 cat > configargs.h <<EOF
849 /* Generated automatically. */
850 static const char configuration_arguments[] = "$gcc_config_arguments";
854 # Internationalization
856 VERSION="$gcc_version"
857 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
858 [Define to the name of the distribution.])
859 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
860 [Define to the version of the distribution.])
866 # Enable NLS support by default
868 [ --enable-nls use Native Language Support (default)],
871 # if cross compiling, disable NLS support.
872 # It's not worth the trouble, at least for now.
874 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
875 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
879 # if NLS is enabled, also enable check in po subdir
880 if test $enable_nls = yes; then
889 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
891 # Windows32 Registry support for specifying GCC installation paths.
892 AC_ARG_ENABLE(win32-registry,
893 [ --disable-win32-registry
894 Disable lookup of installation paths in the
895 Registry on Windows hosts.
896 --enable-win32-registry Enable registry lookup (default).
897 --enable-win32-registry=KEY
898 Use KEY instead of GCC version as the last portion
899 of the registry key.],,)
901 AC_MSG_CHECKING(whether windows registry support is requested)
902 if test x$enable_win32_registry != xno; then
903 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
904 [Define to 1 if installation paths should be looked up in Windows32
905 Registry. Ignored on non windows32 hosts.])
911 # Check if user specified a different registry key.
912 case x${enable_win32_registry} in
915 gcc_cv_win32_registry_key="$VERSION"
918 # no registry lookup.
919 gcc_cv_win32_registry_key=''
922 # user-specified key.
923 gcc_cv_win32_registry_key="$enable_win32_registry"
927 if test x$enable_win32_registry != xno; then
928 AC_MSG_CHECKING(registry key on windows hosts)
929 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
930 [Define to be the last portion of registry key on windows hosts.])
931 AC_MSG_RESULT($gcc_cv_win32_registry_key)
934 # Get an absolute path to the GCC top-level source directory
940 # Conditionalize the makefile for this host machine.
941 # Make-host contains the concatenation of all host makefile fragments
942 # [there can be more than one]. This file is built by configure.frag.
943 host_overrides=Make-host
945 for f in .. ${host_xmake_file}
947 if test -f ${srcdir}/config/$f
949 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
953 # Conditionalize the makefile for this target machine.
954 # Make-target contains the concatenation of all host makefile fragments
955 # [there can be more than one]. This file is built by configure.frag.
956 target_overrides=Make-target
958 for f in .. ${tmake_file}
960 if test -f ${srcdir}/config/$f
962 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
966 # If the host doesn't support symlinks, modify CC in
967 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
968 # Otherwise, we can use "CC=$(CC)".
970 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
972 cc_set_by_configure="\$(CC)"
973 quoted_cc_set_by_configure="\$(CC)"
974 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
977 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
979 symbolic_link="cp -p"
983 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
984 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
985 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
989 out_object_file=`basename $out_file .c`.o
992 for f in $tm_file; do
995 tm_file_list="${tm_file_list} $f" ;;
996 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1001 for f in $host_xm_file; do
1003 auto-host.h | gansidecl.h | hwint.h )
1004 host_xm_file_list="${host_xm_file_list} $f" ;;
1005 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1010 for f in $build_xm_file; do
1012 auto-build.h | auto-host.h | gansidecl.h | hwint.h )
1013 build_xm_file_list="${build_xm_file_list} $f" ;;
1014 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1018 # Define macro CROSS_COMPILE in compilation
1019 # if this is a cross-compiler.
1020 # Also use all.cross instead of all.internal
1021 # and add cross-make to Makefile.
1022 cross_overrides="/dev/null"
1023 if test x$host != x$target
1025 cross_defines="CROSS=-DCROSS_COMPILE"
1026 cross_overrides="${topdir}/cross-make"
1029 # If this is a cross-compiler that does not
1030 # have its own set of headers then define
1033 # If this is using newlib, then define inhibit_libc in
1034 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1035 # libgcc.a, but that's OK because newlib should have its own version of
1038 if [test x$host != x$target] && [test x$with_headers = x]; then
1039 inhibit_libc=-Dinhibit_libc
1041 if [test x$with_newlib = xyes]; then
1042 inhibit_libc=-Dinhibit_libc
1045 AC_SUBST(inhibit_libc)
1047 # When building gcc with a cross-compiler, we need to fix a few things.
1048 # This must come after cross-make as we want all.build to override
1050 build_overrides="/dev/null"
1051 if test x$build != x$host
1053 build_overrides="${topdir}/build-make"
1056 # Expand extra_headers to include complete path.
1057 # This substitutes for lots of t-* files.
1059 if test "x$extra_headers" = x
1062 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1063 for file in $extra_headers;
1065 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1069 if test x$use_collect2 = xno; then
1073 # Add a definition of USE_COLLECT2 if system wants one.
1074 # Also tell toplev.c what to do.
1075 # This substitutes for lots of t-* files.
1076 if test x$use_collect2 = x
1081 will_use_collect2="collect2"
1082 maybe_use_collect2="-DUSE_COLLECT2"
1085 # If we have gas in the build tree, make a link to it.
1086 if test -f ../gas/Makefile; then
1087 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1090 # If we have nm in the build tree, make a link to it.
1091 if test -f ../binutils/Makefile; then
1092 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1095 # If we have ld in the build tree, make a link to it.
1096 if test -f ../ld/Makefile; then
1097 # if test x$use_collect2 = x; then
1098 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1100 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1104 # Figure out what assembler we will be using.
1105 AC_MSG_CHECKING(what assembler to use)
1107 gcc_cv_gas_major_version=
1108 gcc_cv_gas_minor_version=
1109 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1110 if test -x "$DEFAULT_ASSEMBLER"; then
1111 gcc_cv_as="$DEFAULT_ASSEMBLER"
1112 elif test -x "$AS"; then
1114 elif test -x as$host_exeext; then
1115 # Build using assembler in the current directory.
1116 gcc_cv_as=./as$host_exeext
1117 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1118 # Single tree build which includes gas.
1119 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1122 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1124 if test x$gcc_cv_gas_version != x; then
1129 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1130 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1134 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1136 # Search the same directories that the installed compiler will
1137 # search. Else we may find the wrong assembler and lose. If we
1138 # do not find a suitable assembler binary, then try the user's
1141 # Also note we have to check MD_EXEC_PREFIX before checking the
1142 # user's path. Unfortunately, there is no good way to get at the
1143 # value of MD_EXEC_PREFIX here. So we do a brute force search
1144 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1145 # to be fixed as part of the make/configure rewrite too.
1147 if test "x$exec_prefix" = xNONE; then
1148 if test "x$prefix" = xNONE; then
1149 test_prefix=/usr/local
1154 test_prefix=$exec_prefix
1157 # If the loop below does not find an assembler, then use whatever
1158 # one we can find in the users's path.
1162 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1163 $test_prefix/lib/gcc-lib/$target \
1164 /usr/lib/gcc/$target/$gcc_version \
1165 /usr/lib/gcc/$target \
1166 $test_prefix/$target/bin/$target/$gcc_version \
1167 $test_prefix/$target/bin \
1172 /bsd43/usr/lib/cmplrs/cc \
1173 /usr/cross64/usr/bin \
1174 /usr/lib/cmplrs/cc \
1175 /sysv/usr/lib/cmplrs/cc \
1176 /svr4/usr/lib/cmplrs/cc \
1179 for dir in $test_dirs; do
1180 if test -f $dir/as$host_exeext; then
1181 gcc_cv_as=$dir/as$host_exeext
1186 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1187 AC_MSG_RESULT("newly built gas")
1189 AC_MSG_RESULT($gcc_cv_as)
1192 # Figure out what nm we will be using.
1193 AC_MSG_CHECKING(what nm to use)
1194 if test -x nm$host_exeext; then
1195 gcc_cv_nm=./nm$host_exeext
1196 elif test x$host = x$target; then
1198 gcc_cv_nm=nm$host_exeext
1200 AC_MSG_RESULT($gcc_cv_nm)
1202 # Figure out what assembler alignment features are present.
1203 AC_MSG_CHECKING(assembler alignment features)
1204 gcc_cv_as_alignment_features=none
1205 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1206 # Gas version 2.6 and later support for .balign and .p2align.
1207 # bytes to skip when using .p2align.
1208 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1209 gcc_cv_as_alignment_features=".balign and .p2align"
1210 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1212 # Gas version 2.8 and later support specifying the maximum
1213 # bytes to skip when using .p2align.
1214 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1215 gcc_cv_as_alignment_features=".p2align including maximum skip"
1216 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1218 elif test x$gcc_cv_as != x; then
1219 # Check if we have .balign and .p2align
1220 echo ".balign 4" > conftest.s
1221 echo ".p2align 2" >> conftest.s
1222 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1223 gcc_cv_as_alignment_features=".balign and .p2align"
1224 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1226 rm -f conftest.s conftest.o
1227 # Check if specifying the maximum bytes to skip when
1228 # using .p2align is supported.
1229 echo ".p2align 4,,7" > conftest.s
1230 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1231 gcc_cv_as_alignment_features=".p2align including maximum skip"
1232 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1234 rm -f conftest.s conftest.o
1236 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1238 AC_MSG_CHECKING(assembler subsection support)
1239 gcc_cv_as_subsections=no
1240 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1241 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1242 gcc_cv_as_subsections="working .subsection -1"
1244 elif test x$gcc_cv_as != x; then
1245 # Check if we have .subsection
1246 echo ".subsection 1" > conftest.s
1247 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1248 gcc_cv_as_subsections=".subsection"
1249 if test x$gcc_cv_nm != x; then
1250 cat > conftest.s <<EOF
1251 conftest_label1: .word 0
1253 conftest_label2: .word 0
1256 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1257 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1258 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1259 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1262 gcc_cv_as_subsections="working .subsection -1"
1267 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1269 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1270 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1271 [Define if your assembler supports .subsection and .subsection -1 starts
1272 emitting at the beginning of your section.])
1274 AC_MSG_RESULT($gcc_cv_as_subsections)
1276 AC_MSG_CHECKING(assembler weak support)
1278 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1279 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1280 gcc_cv_as_weak="yes"
1282 elif test x$gcc_cv_as != x; then
1283 # Check if we have .weak
1284 echo " .weak foobar" > conftest.s
1285 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1286 gcc_cv_as_weak="yes"
1288 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1290 if test x"$gcc_cv_as_weak" = xyes; then
1291 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1293 AC_MSG_RESULT($gcc_cv_as_weak)
1295 AC_MSG_CHECKING(assembler hidden support)
1297 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1298 if test "$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
1299 gcc_cv_as_hidden="yes"
1301 elif test x$gcc_cv_as != x; then
1302 # Check if we have .hidden
1303 echo " .hidden foobar" > conftest.s
1304 echo "foobar:" >> conftest.s
1305 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1306 gcc_cv_as_hidden="yes"
1308 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1310 if test x"$gcc_cv_as_hidden" = xyes; then
1311 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1312 [Define if your assembler supports .hidden.])
1314 AC_MSG_RESULT($gcc_cv_as_hidden)
1318 AC_CACHE_CHECK([assembler .register pseudo-op support],
1319 gcc_cv_as_register_pseudo_op, [
1320 gcc_cv_as_register_pseudo_op=unknown
1321 if test x$gcc_cv_as != x; then
1322 # Check if we have .register
1323 echo ".register %g2, #scratch" > conftest.s
1324 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1325 gcc_cv_as_register_pseudo_op=yes
1327 gcc_cv_as_register_pseudo_op=no
1329 rm -f conftest.s conftest.o
1332 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1333 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1334 [Define if your assembler supports .register.])
1337 AC_CACHE_CHECK([assembler supports -relax],
1338 gcc_cv_as_relax_opt, [
1339 gcc_cv_as_relax_opt=unknown
1340 if test x$gcc_cv_as != x; then
1341 # Check if gas supports -relax
1342 echo ".text" > conftest.s
1343 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1344 gcc_cv_as_relax_opt=yes
1346 gcc_cv_as_relax_opt=no
1348 rm -f conftest.s conftest.o
1351 if test "x$gcc_cv_as_relax_opt" = xyes; then
1352 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1353 [Define if your assembler supports -relax option.])
1358 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1359 gcc_cv_as_flags64, [
1360 if test -n "$gcc_cv_as"; then
1361 echo ".xword foo" > conftest.s
1362 gcc_cv_as_flags64=no
1363 for flag in "-xarch=v9" "-64 -Av9"; do
1364 if $gcc_cv_as $flag -o conftest.o conftest.s \
1365 > /dev/null 2>&1; then
1366 gcc_cv_as_flags64=$flag
1370 rm -f conftest.s conftest.o
1372 if test "$gas" = yes; then
1373 gcc_cv_as_flags64="-64 -Av9"
1375 gcc_cv_as_flags64="-xarch=v9"
1379 if test "x$gcc_cv_as_flags64" = xno; then
1381 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1382 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1385 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1386 [Define if the assembler supports 64bit sparc.])
1389 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1393 if test "x$gcc_cv_as_flags64" != xno; then
1394 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1395 gcc_cv_as_offsetable_lo10, [
1396 gcc_cv_as_offsetable_lo10=unknown
1397 if test "x$gcc_cv_as" != x; then
1398 # Check if assembler has offsetable %lo()
1399 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1400 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1401 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1403 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1404 > /dev/null 2>&1; then
1405 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1406 gcc_cv_as_offsetable_lo10=no
1408 gcc_cv_as_offsetable_lo10=yes
1411 gcc_cv_as_offsetable_lo10=no
1413 rm -f conftest.s conftest.o conftest1.s conftest1.o
1416 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1417 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1418 [Define if your assembler supports offsetable %lo().])
1426 AC_MSG_CHECKING(assembler instructions)
1427 gcc_cv_as_instructions=
1428 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1429 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1430 gcc_cv_as_instructions="filds fists"
1432 elif test x$gcc_cv_as != x; then
1433 set "filds fists" "filds mem; fists mem"
1436 echo "$2" > conftest.s
1437 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1438 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1442 rm -f conftest.s conftest.o
1444 if test x"$gcc_cv_as_instructions" != x; then
1445 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1447 AC_MSG_RESULT($gcc_cv_as_instructions)
1451 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1452 gcc_cv_as_dwarf2_debug_line=no
1453 # ??? Not all targets support dwarf2 debug_line, even within a version
1454 # of gas. Moreover, we need to emit a valid instruction to trigger any
1455 # info to the output file. So, as supported targets are added to gas 2.11,
1456 # add some instruction here to (also) show we expect this might work.
1457 # ??? Once 2.11 is released, probably need to add first known working
1458 # version to the per-target configury.
1460 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-*)
1467 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1469 if test "$gcc_cv_gas_major_version" -eq 2 \
1470 -a "$gcc_cv_gas_minor_version" -ge 11 \
1471 -o "$gcc_cv_gas_major_version" -gt 2 \
1472 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1473 && test x"$insn" != x ; then
1474 gcc_cv_as_dwarf2_debug_line="yes"
1476 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1477 echo ' .file 0 "conftest.s"' > conftest.s
1478 echo ' .loc 0 3 0' >> conftest.s
1479 echo " $insn" >> conftest.s
1480 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1481 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1482 gcc_cv_as_dwarf2_debug_line="yes"
1484 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1486 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1487 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1488 [Define if your assembler supports dwarf2 .file/.loc directives.])
1490 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1492 # Figure out what language subdirectories are present.
1493 # Look if the user specified --enable-languages="..."; if not, use
1494 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1496 if test x"${enable_languages+set}" != xset; then
1497 if test x"${LANGUAGES+set}" = xset; then
1498 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1500 enable_languages=all
1503 if test x"${enable_languages}" = x; then
1504 AC_MSG_ERROR([--enable-languages needs at least one argument])
1508 for lang in ${srcdir}/*/config-lang.in ..
1512 # The odd quoting in the next line works around
1513 # an apparent bug in bash 1.12 on linux.
1515 ${srcdir}/[*]/config-lang.in) ;;
1517 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1518 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1519 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1520 if test "x$lang_alias" = x
1522 echo "$lang doesn't set \$language." 1>&2
1525 case ${build_by_default},${enable_languages}, in
1526 *,$lang_alias,*) add_this_lang=yes ;;
1527 no,*) add_this_lang=no ;;
1528 *,all,*) add_this_lang=yes ;;
1529 *) add_this_lang=no ;;
1531 if test x"${add_this_lang}" = xyes; then
1533 ${srcdir}/ada/config-lang.in)
1534 if test x$gnat = xyes ; then
1535 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1539 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1548 # Make gthr-default.h if we have a thread file.
1550 if test $thread_file != single; then
1551 rm -f gthr-default.h
1552 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1553 gthread_flags=-DHAVE_GTHR_DEFAULT
1555 AC_SUBST(gthread_flags)
1557 # Find out what GC implementation we want, or may, use.
1559 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1560 with the compiler.],
1566 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1569 [if test $ac_cv_func_mmap_anywhere = yes \
1570 || test $ac_cv_func_valloc = yes; then
1576 echo "Using $GGC for garbage collection."
1578 # Use the system's zlib library.
1580 zlibinc="-I\$(srcdir)/../zlib"
1581 AC_ARG_WITH(system-zlib,
1582 [ --with-system-zlib use installed libz],
1589 # Build a new-abi (c++) system
1590 AC_ARG_ENABLE(new-gxx-abi,
1591 [ --enable-new-gxx-abi
1592 select the new abi for g++. You must select an ABI
1593 at configuration time, so that the correct runtime
1594 support is built. You cannot mix ABIs.],
1596 enable_new_gxx_abi=yes)
1598 if test x$enable_new_gxx_abi = xyes; then
1599 AC_DEFINE(ENABLE_NEW_GXX_ABI, 1,
1600 [Define if you want to always select the new-abi for g++.])
1601 GXX_ABI_FLAG='-fnew-abi'
1605 AC_SUBST(GXX_ABI_FLAG)
1607 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, $ac_esn,
1608 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1609 AC_SUBST(HAVE_LIBSTDCXX_V3)
1611 dnl Very limited version of automake's enable-maintainer-mode
1613 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1614 dnl maintainer-mode is disabled by default
1615 AC_ARG_ENABLE(maintainer-mode,
1616 [ --enable-maintainer-mode enable make rules and dependencies not useful
1617 (and sometimes confusing) to the casual installer],
1618 maintainer_mode=$enableval,
1621 AC_MSG_RESULT($maintainer_mode)
1623 if test "$maintainer_mode" = "yes"; then
1630 # Make empty files to contain the specs and options for each language.
1631 # Then add #include lines to for a compiler that has specs and/or options.
1636 rm -f specs.h options.h gencheck.h
1637 touch specs.h options.h gencheck.h
1638 for subdir in . $subdirs
1640 if test -f $srcdir/$subdir/lang-specs.h; then
1641 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1642 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1644 if test -f $srcdir/$subdir/lang-options.h; then
1645 echo "#include \"$subdir/lang-options.h\"" >>options.h
1646 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1648 if test -f $srcdir/$subdir/$subdir-tree.def; then
1649 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1650 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1654 # These (without "all_") are set in each config-lang.in.
1655 # `language' must be a single word so is spelled singularly.
1661 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1662 # List of language makefile fragments.
1667 # Add the language fragments.
1668 # Languages are added via two mechanisms. Some information must be
1669 # recorded in makefile variables, these are defined in config-lang.in.
1670 # We accumulate them and plug them into the main Makefile.
1671 # The other mechanism is a set of hooks for each of the main targets
1672 # like `clean', `install', etc.
1674 language_fragments="Make-lang"
1675 language_hooks="Make-hooks"
1677 for s in .. $subdirs
1689 . ${srcdir}/$s/config-lang.in
1690 if test "x$language" = x
1692 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1695 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1696 if test -f ${srcdir}/$s/Makefile.in
1697 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1699 all_languages="$all_languages $language"
1700 if test "x$boot_language" = xyes
1702 all_boot_languages="$all_boot_languages $language"
1704 all_compilers="$all_compilers $compilers"
1705 all_stagestuff="$all_stagestuff $stagestuff"
1706 all_diff_excludes="$all_diff_excludes $diff_excludes"
1707 all_headers="$all_headers $headers"
1708 all_outputs="$all_outputs $outputs"
1709 all_lib2funcs="$all_lib2funcs $lib2funcs"
1713 # Since we can't use `::' targets, we link each language in
1714 # with a set of hooks, reached indirectly via lang.${target}.
1718 target_list="all.build all.cross start.encap rest.encap \
1720 install-normal install-common install-info install-man \
1722 mostlyclean clean distclean extraclean maintainer-clean \
1723 stage1 stage2 stage3 stage4"
1724 for t in $target_list
1727 for lang in .. $all_languages
1729 if test $lang != ".."; then
1733 echo "lang.$t: $x" >> Make-hooks
1736 # If we're not building in srcdir, create .gdbinit.
1738 if test ! -f Makefile.in; then
1739 echo "dir ." > .gdbinit
1740 echo "dir ${srcdir}" >> .gdbinit
1741 if test x$gdb_needs_out_file_path = xyes
1743 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1745 if test "x$subdirs" != x; then
1748 echo "dir ${srcdir}/$s" >> .gdbinit
1751 echo "source ${srcdir}/.gdbinit" >> .gdbinit
1754 # Define variables host_canonical and build_canonical
1755 # because some Cygnus local changes in the Makefile depend on them.
1756 build_canonical=${build}
1757 host_canonical=${host}
1759 if test "${host}" != "${target}" ; then
1760 target_subdir=${target}/
1762 AC_SUBST(build_canonical)
1763 AC_SUBST(host_canonical)
1764 AC_SUBST(target_subdir)
1766 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1767 # absolute path for gcc_tooldir based on inserting the number of up-directory
1768 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1769 # $(libsubdir)/@(unlibsubdir) based path.
1770 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1771 # make and thus we'd get different behavior depending on where we built the
1773 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1774 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1776 changequote(<<, >>)dnl
1777 # An explanation of the sed strings:
1778 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1779 # -e 's|/$||' match a trailing forward slash and eliminates it
1780 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1781 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1783 # (*) Note this pattern overwrites the first character of the string
1784 # with a forward slash if one is not already present. This is not a
1785 # problem because the exact names of the sub-directories concerned is
1786 # unimportant, just the number of them matters.
1788 # The practical upshot of these patterns is like this:
1790 # prefix exec_prefix result
1791 # ------ ----------- ------
1793 # /foo/ /foo/bar ../
1794 # /foo /foo/bar/ ../
1795 # /foo/ /foo/bar/ ../
1796 # /foo /foo/bar/ugg ../../
1799 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1800 changequote([, ])dnl
1802 AC_SUBST(gcc_tooldir)
1805 # Find a directory in which to install a shared libgcc.
1807 AC_ARG_ENABLE(version-specific-runtime-libs,
1808 [ --enable-version-specific-runtime-libs Specify that runtime libraries shou
1809 ld be installed in a compiler-specific directory ])
1811 AC_ARG_WITH(slibdir,
1812 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
1813 slibdir="$with_slibdir",
1814 if test "${enable_version_specific_runtime_libs+set}" = set; then
1815 slibdir='$(libsubdir)'
1816 elif test "$host" != "$target"; then
1817 slibdir='$(build_tooldir)/lib'
1823 # Nothing to do for FLOAT_H, float_format already handled.
1827 # Process the language and host/target makefile fragments.
1828 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1830 # Substitute configuration variables
1832 AC_SUBST(all_boot_languages)
1833 AC_SUBST(all_compilers)
1834 AC_SUBST(all_diff_excludes)
1835 AC_SUBST(all_headers)
1836 AC_SUBST(all_lang_makefiles)
1837 AC_SUBST(all_languages)
1838 AC_SUBST(all_lib2funcs)
1839 AC_SUBST(all_stagestuff)
1840 AC_SUBST(build_exeext)
1841 AC_SUBST(build_install_headers_dir)
1842 AC_SUBST(build_xm_file_list)
1843 AC_SUBST(cc_set_by_configure)
1844 AC_SUBST(quoted_cc_set_by_configure)
1845 AC_SUBST(cpp_install_dir)
1846 AC_SUBST(dep_host_xmake_file)
1847 AC_SUBST(dep_tmake_file)
1848 AC_SUBST(extra_c_flags)
1849 AC_SUBST(extra_headers_list)
1850 AC_SUBST(extra_objs)
1851 AC_SUBST(extra_parts)
1852 AC_SUBST(extra_passes)
1853 AC_SUBST(extra_programs)
1854 AC_SUBST(float_h_file)
1855 AC_SUBST(gcc_config_arguments)
1856 AC_SUBST(gcc_gxx_include_dir)
1857 AC_SUBST(libstdcxx_incdir)
1858 AC_SUBST(gcc_version)
1859 AC_SUBST(gcc_version_full)
1860 AC_SUBST(gcc_version_trigger)
1861 AC_SUBST(host_exeext)
1862 AC_SUBST(host_extra_gcc_objs)
1863 AC_SUBST(host_xm_file_list)
1865 AC_SUBST(lang_options_files)
1866 AC_SUBST(lang_specs_files)
1867 AC_SUBST(lang_tree_files)
1868 AC_SUBST(local_prefix)
1869 AC_SUBST(maybe_use_collect2)
1871 AC_SUBST(objc_boehm_gc)
1873 AC_SUBST(out_object_file)
1874 AC_SUBST(stage_prefix_set_by_configure)
1875 AC_SUBST(symbolic_link)
1876 AC_SUBST(thread_file)
1877 AC_SUBST(tm_file_list)
1878 AC_SUBST(will_use_collect2)
1879 AC_SUBST(c_target_objs)
1880 AC_SUBST(cxx_target_objs)
1883 AC_SUBST_FILE(target_overrides)
1884 AC_SUBST_FILE(host_overrides)
1885 AC_SUBST(cross_defines)
1886 AC_SUBST_FILE(cross_overrides)
1887 AC_SUBST_FILE(build_overrides)
1888 AC_SUBST_FILE(language_fragments)
1889 AC_SUBST_FILE(language_hooks)
1891 # Echo that links are built
1892 if test x$host = x$target
1900 if test x$host != x$build
1902 str3=" on a $build system"
1905 if test "x$str2" != x || test "x$str3" != x
1910 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1912 if test "x$str2" != x || test "x$str3" != x
1914 echo " ${str2}${str3}." 1>&2
1917 # Truncate the target if necessary
1918 if test x$host_truncate_target != x; then
1919 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1922 # Configure the subdirectories
1923 # AC_CONFIG_SUBDIRS($subdirs)
1925 # Create the Makefile
1926 # and configure language subdirectories
1927 AC_OUTPUT($all_outputs,
1929 case x$CONFIG_HEADERS in
1930 xauto-host.h:config.in)
1933 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1934 # bootstrapping and the installation procedure can still use
1935 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
1936 # FLAGS_TO_PASS has been modified to solve the problem there.
1937 # This is virtually a duplicate of what happens in configure.lang; we do
1938 # an extra check to make sure this only happens if ln -s can be used.
1939 if test "$symbolic_link" = "ln -s"; then
1940 for d in .. ${subdirs} ; do
1941 if test $d != ..; then
1944 for t in stage1 stage2 stage3 stage4 include
1947 $symbolic_link ../$t $t 2>/dev/null
1953 # Avoid having to add intl to our include paths.
1954 if test -f intl/libintl.h; then
1955 echo creating libintl.h
1956 echo '#include "intl/libintl.h"' >libintl.h
1963 target_alias='${target_alias}'
1965 subdirs='${subdirs}'
1966 symbolic_link='${symbolic_link}'
1967 program_transform_set='${program_transform_set}'
1968 program_transform_name='${program_transform_name}'
1969 dep_host_xmake_file='${dep_host_xmake_file}'
1970 host_xmake_file='${host_xmake_file}'
1971 dep_tmake_file='${dep_tmake_file}'
1972 tmake_file='${tmake_file}'
1973 thread_file='${thread_file}'
1974 gcc_config_arguments='${gcc_config_arguments}'
1975 gcc_version='${gcc_version}'
1976 gcc_version_full='${gcc_version_full}'
1977 gcc_version_trigger='${gcc_version_trigger}'
1978 local_prefix='${local_prefix}'
1979 build_install_headers_dir='${build_install_headers_dir}'
1980 build_exeext='${build_exeext}'
1981 host_exeext='${host_exeext}'
1982 out_file='${out_file}'
1983 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
1984 SET_MAKE='${SET_MAKE}'
1985 target_list='${target_list}'
1986 target_overrides='${target_overrides}'
1987 host_overrides='${host_overrides}'
1988 cross_defines='${cross_defines}'
1989 cross_overrides='${cross_overrides}'
1990 build_overrides='${build_overrides}'
1991 cpp_install_dir='${cpp_install_dir}'