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)" >>$link
792 echo "#ifndef GENERATOR_FILE" >>$link
793 echo "#include \"insn-codes.h\"" >>$link
794 echo "#endif" >>$link
797 for file in `eval echo '$'$var`; do
799 auto-host.h | auto-build.h )
802 echo '#ifdef IN_GCC' >>$link
805 echo "#include \"$file\"" >>$link
807 auto-host.h | auto-build.h )
810 echo '#endif' >>$link
815 for def in `eval echo '$'$define`; do
816 echo "#ifndef $def" >>$link
817 echo "#define $def" >>$link
818 echo "#endif" >>$link
822 # Truncate the target if necessary
823 if test x$host_truncate_target != x; then
824 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
827 # Get the version trigger filename from the toplevel
828 if test "${with_gcc_version_trigger+set}" = set; then
829 gcc_version_trigger=$with_gcc_version_trigger
831 gcc_version_trigger=${srcdir}/version.c
834 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
835 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
837 # Compile in configure arguments.
838 if test -f configargs.h ; then
839 # Being re-configured.
840 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
841 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
843 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
845 cat > configargs.h <<EOF
846 /* Generated automatically. */
847 static const char configuration_arguments[] = "$gcc_config_arguments";
851 # Internationalization
853 VERSION="$gcc_version"
854 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
855 [Define to the name of the distribution.])
856 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
857 [Define to the version of the distribution.])
863 # Enable NLS support by default
865 [ --enable-nls use Native Language Support (default)],
868 # if cross compiling, disable NLS support.
869 # It's not worth the trouble, at least for now.
871 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
872 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
876 # if NLS is enabled, also enable check in po subdir
877 if test $enable_nls = yes; then
886 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
888 # Windows32 Registry support for specifying GCC installation paths.
889 AC_ARG_ENABLE(win32-registry,
890 [ --disable-win32-registry
891 Disable lookup of installation paths in the
892 Registry on Windows hosts.
893 --enable-win32-registry Enable registry lookup (default).
894 --enable-win32-registry=KEY
895 Use KEY instead of GCC version as the last portion
896 of the registry key.],,)
898 AC_MSG_CHECKING(whether windows registry support is requested)
899 if test x$enable_win32_registry != xno; then
900 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
901 [Define to 1 if installation paths should be looked up in Windows32
902 Registry. Ignored on non windows32 hosts.])
908 # Check if user specified a different registry key.
909 case x${enable_win32_registry} in
912 gcc_cv_win32_registry_key="$VERSION"
915 # no registry lookup.
916 gcc_cv_win32_registry_key=''
919 # user-specified key.
920 gcc_cv_win32_registry_key="$enable_win32_registry"
924 if test x$enable_win32_registry != xno; then
925 AC_MSG_CHECKING(registry key on windows hosts)
926 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
927 [Define to be the last portion of registry key on windows hosts.])
928 AC_MSG_RESULT($gcc_cv_win32_registry_key)
931 # Get an absolute path to the GCC top-level source directory
937 # Conditionalize the makefile for this host machine.
938 # Make-host contains the concatenation of all host makefile fragments
939 # [there can be more than one]. This file is built by configure.frag.
940 host_overrides=Make-host
942 for f in .. ${host_xmake_file}
944 if test -f ${srcdir}/config/$f
946 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
950 # Conditionalize the makefile for this target machine.
951 # Make-target contains the concatenation of all host makefile fragments
952 # [there can be more than one]. This file is built by configure.frag.
953 target_overrides=Make-target
955 for f in .. ${tmake_file}
957 if test -f ${srcdir}/config/$f
959 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
963 # If the host doesn't support symlinks, modify CC in
964 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
965 # Otherwise, we can use "CC=$(CC)".
967 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
969 cc_set_by_configure="\$(CC)"
970 quoted_cc_set_by_configure="\$(CC)"
971 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
974 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
976 symbolic_link="cp -p"
980 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
981 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
982 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
986 out_object_file=`basename $out_file .c`.o
989 for f in $tm_file; do
992 tm_file_list="${tm_file_list} $f" ;;
993 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
998 for f in $host_xm_file; do
1000 auto-host.h | gansidecl.h | hwint.h )
1001 host_xm_file_list="${host_xm_file_list} $f" ;;
1002 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1007 for f in $build_xm_file; do
1009 auto-build.h | auto-host.h | gansidecl.h | hwint.h )
1010 build_xm_file_list="${build_xm_file_list} $f" ;;
1011 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1015 # Define macro CROSS_COMPILE in compilation
1016 # if this is a cross-compiler.
1017 # Also use all.cross instead of all.internal
1018 # and add cross-make to Makefile.
1019 cross_overrides="/dev/null"
1020 if test x$host != x$target
1022 cross_defines="CROSS=-DCROSS_COMPILE"
1023 cross_overrides="${topdir}/cross-make"
1026 # If this is a cross-compiler that does not
1027 # have its own set of headers then define
1030 # If this is using newlib, then define inhibit_libc in
1031 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1032 # libgcc.a, but that's OK because newlib should have its own version of
1035 if [test x$host != x$target] && [test x$with_headers = x]; then
1036 inhibit_libc=-Dinhibit_libc
1038 if [test x$with_newlib = xyes]; then
1039 inhibit_libc=-Dinhibit_libc
1042 AC_SUBST(inhibit_libc)
1044 # When building gcc with a cross-compiler, we need to fix a few things.
1045 # This must come after cross-make as we want all.build to override
1047 build_overrides="/dev/null"
1048 if test x$build != x$host
1050 build_overrides="${topdir}/build-make"
1053 # Expand extra_headers to include complete path.
1054 # This substitutes for lots of t-* files.
1056 if test "x$extra_headers" = x
1059 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1060 for file in $extra_headers;
1062 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1066 if test x$use_collect2 = xno; then
1070 # Add a definition of USE_COLLECT2 if system wants one.
1071 # Also tell toplev.c what to do.
1072 # This substitutes for lots of t-* files.
1073 if test x$use_collect2 = x
1078 will_use_collect2="collect2"
1079 maybe_use_collect2="-DUSE_COLLECT2"
1082 # If we have gas in the build tree, make a link to it.
1083 if test -f ../gas/Makefile; then
1084 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1087 # If we have nm in the build tree, make a link to it.
1088 if test -f ../binutils/Makefile; then
1089 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1092 # If we have ld in the build tree, make a link to it.
1093 if test -f ../ld/Makefile; then
1094 # if test x$use_collect2 = x; then
1095 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1097 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1101 # Figure out what assembler we will be using.
1102 AC_MSG_CHECKING(what assembler to use)
1104 gcc_cv_gas_major_version=
1105 gcc_cv_gas_minor_version=
1106 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1107 if test -x "$DEFAULT_ASSEMBLER"; then
1108 gcc_cv_as="$DEFAULT_ASSEMBLER"
1109 elif test -x "$AS"; then
1111 elif test -x as$host_exeext; then
1112 # Build using assembler in the current directory.
1113 gcc_cv_as=./as$host_exeext
1114 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1115 # Single tree build which includes gas.
1116 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1119 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1121 if test x$gcc_cv_gas_version != x; then
1126 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1127 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1131 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1133 # Search the same directories that the installed compiler will
1134 # search. Else we may find the wrong assembler and lose. If we
1135 # do not find a suitable assembler binary, then try the user's
1138 # Also note we have to check MD_EXEC_PREFIX before checking the
1139 # user's path. Unfortunately, there is no good way to get at the
1140 # value of MD_EXEC_PREFIX here. So we do a brute force search
1141 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1142 # to be fixed as part of the make/configure rewrite too.
1144 if test "x$exec_prefix" = xNONE; then
1145 if test "x$prefix" = xNONE; then
1146 test_prefix=/usr/local
1151 test_prefix=$exec_prefix
1154 # If the loop below does not find an assembler, then use whatever
1155 # one we can find in the users's path.
1159 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1160 $test_prefix/lib/gcc-lib/$target \
1161 /usr/lib/gcc/$target/$gcc_version \
1162 /usr/lib/gcc/$target \
1163 $test_prefix/$target/bin/$target/$gcc_version \
1164 $test_prefix/$target/bin \
1169 /bsd43/usr/lib/cmplrs/cc \
1170 /usr/cross64/usr/bin \
1171 /usr/lib/cmplrs/cc \
1172 /sysv/usr/lib/cmplrs/cc \
1173 /svr4/usr/lib/cmplrs/cc \
1176 for dir in $test_dirs; do
1177 if test -f $dir/as$host_exeext; then
1178 gcc_cv_as=$dir/as$host_exeext
1183 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1184 AC_MSG_RESULT("newly built gas")
1186 AC_MSG_RESULT($gcc_cv_as)
1189 # Figure out what nm we will be using.
1190 AC_MSG_CHECKING(what nm to use)
1191 if test -x nm$host_exeext; then
1192 gcc_cv_nm=./nm$host_exeext
1193 elif test x$host = x$target; then
1195 gcc_cv_nm=nm$host_exeext
1197 AC_MSG_RESULT($gcc_cv_nm)
1199 # Figure out what assembler alignment features are present.
1200 AC_MSG_CHECKING(assembler alignment features)
1201 gcc_cv_as_alignment_features=none
1202 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1203 # Gas version 2.6 and later support for .balign and .p2align.
1204 # bytes to skip when using .p2align.
1205 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1206 gcc_cv_as_alignment_features=".balign and .p2align"
1207 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1209 # Gas version 2.8 and later support specifying the maximum
1210 # bytes to skip when using .p2align.
1211 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1212 gcc_cv_as_alignment_features=".p2align including maximum skip"
1213 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1215 elif test x$gcc_cv_as != x; then
1216 # Check if we have .balign and .p2align
1217 echo ".balign 4" > conftest.s
1218 echo ".p2align 2" >> conftest.s
1219 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1220 gcc_cv_as_alignment_features=".balign and .p2align"
1221 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1223 rm -f conftest.s conftest.o
1224 # Check if specifying the maximum bytes to skip when
1225 # using .p2align is supported.
1226 echo ".p2align 4,,7" > conftest.s
1227 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1228 gcc_cv_as_alignment_features=".p2align including maximum skip"
1229 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1231 rm -f conftest.s conftest.o
1233 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1235 AC_MSG_CHECKING(assembler subsection support)
1236 gcc_cv_as_subsections=no
1237 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1238 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1239 gcc_cv_as_subsections="working .subsection -1"
1241 elif test x$gcc_cv_as != x; then
1242 # Check if we have .subsection
1243 echo ".subsection 1" > conftest.s
1244 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1245 gcc_cv_as_subsections=".subsection"
1246 if test x$gcc_cv_nm != x; then
1247 cat > conftest.s <<EOF
1248 conftest_label1: .word 0
1250 conftest_label2: .word 0
1253 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1254 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1255 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1256 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1259 gcc_cv_as_subsections="working .subsection -1"
1264 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1266 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1267 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1268 [Define if your assembler supports .subsection and .subsection -1 starts
1269 emitting at the beginning of your section.])
1271 AC_MSG_RESULT($gcc_cv_as_subsections)
1273 AC_MSG_CHECKING(assembler weak support)
1275 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1276 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1277 gcc_cv_as_weak="yes"
1279 elif test x$gcc_cv_as != x; then
1280 # Check if we have .weak
1281 echo " .weak foobar" > conftest.s
1282 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1283 gcc_cv_as_weak="yes"
1285 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1287 if test x"$gcc_cv_as_weak" = xyes; then
1288 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1290 AC_MSG_RESULT($gcc_cv_as_weak)
1292 AC_MSG_CHECKING(assembler hidden support)
1294 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1295 if test "$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
1296 gcc_cv_as_hidden="yes"
1298 elif test x$gcc_cv_as != x; then
1299 # Check if we have .hidden
1300 echo " .hidden foobar" > conftest.s
1301 echo "foobar:" >> conftest.s
1302 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1303 gcc_cv_as_hidden="yes"
1305 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1307 if test x"$gcc_cv_as_hidden" = xyes; then
1308 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1309 [Define if your assembler supports .hidden.])
1311 AC_MSG_RESULT($gcc_cv_as_hidden)
1315 AC_CACHE_CHECK([assembler .register pseudo-op support],
1316 gcc_cv_as_register_pseudo_op, [
1317 gcc_cv_as_register_pseudo_op=unknown
1318 if test x$gcc_cv_as != x; then
1319 # Check if we have .register
1320 echo ".register %g2, #scratch" > conftest.s
1321 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1322 gcc_cv_as_register_pseudo_op=yes
1324 gcc_cv_as_register_pseudo_op=no
1326 rm -f conftest.s conftest.o
1329 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1330 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1331 [Define if your assembler supports .register.])
1334 AC_CACHE_CHECK([assembler supports -relax],
1335 gcc_cv_as_relax_opt, [
1336 gcc_cv_as_relax_opt=unknown
1337 if test x$gcc_cv_as != x; then
1338 # Check if gas supports -relax
1339 echo ".text" > conftest.s
1340 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1341 gcc_cv_as_relax_opt=yes
1343 gcc_cv_as_relax_opt=no
1345 rm -f conftest.s conftest.o
1348 if test "x$gcc_cv_as_relax_opt" = xyes; then
1349 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1350 [Define if your assembler supports -relax option.])
1355 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1356 gcc_cv_as_flags64, [
1357 if test -n "$gcc_cv_as"; then
1358 echo ".xword foo" > conftest.s
1359 gcc_cv_as_flags64=no
1360 for flag in "-xarch=v9" "-64 -Av9"; do
1361 if $gcc_cv_as $flag -o conftest.o conftest.s \
1362 > /dev/null 2>&1; then
1363 gcc_cv_as_flags64=$flag
1367 rm -f conftest.s conftest.o
1369 if test "$gas" = yes; then
1370 gcc_cv_as_flags64="-64 -Av9"
1372 gcc_cv_as_flags64="-xarch=v9"
1376 if test "x$gcc_cv_as_flags64" = xno; then
1378 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1379 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1382 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1383 [Define if the assembler supports 64bit sparc.])
1386 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1390 if test "x$gcc_cv_as_flags64" != xno; then
1391 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1392 gcc_cv_as_offsetable_lo10, [
1393 gcc_cv_as_offsetable_lo10=unknown
1394 if test "x$gcc_cv_as" != x; then
1395 # Check if assembler has offsetable %lo()
1396 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1397 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1398 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1400 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1401 > /dev/null 2>&1; then
1402 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1403 gcc_cv_as_offsetable_lo10=no
1405 gcc_cv_as_offsetable_lo10=yes
1408 gcc_cv_as_offsetable_lo10=no
1410 rm -f conftest.s conftest.o conftest1.s conftest1.o
1413 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1414 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1415 [Define if your assembler supports offsetable %lo().])
1423 AC_MSG_CHECKING(assembler instructions)
1424 gcc_cv_as_instructions=
1425 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1426 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1427 gcc_cv_as_instructions="filds fists"
1429 elif test x$gcc_cv_as != x; then
1430 set "filds fists" "filds mem; fists mem"
1433 echo "$2" > conftest.s
1434 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1435 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1439 rm -f conftest.s conftest.o
1441 if test x"$gcc_cv_as_instructions" != x; then
1442 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1444 AC_MSG_RESULT($gcc_cv_as_instructions)
1448 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1449 gcc_cv_as_dwarf2_debug_line=no
1450 # ??? Not all targets support dwarf2 debug_line, even within a version
1451 # of gas. Moreover, we need to emit a valid instruction to trigger any
1452 # info to the output file. So, as supported targets are added to gas 2.11,
1453 # add some instruction here to (also) show we expect this might work.
1454 # ??? Once 2.11 is released, probably need to add first known working
1455 # version to the per-target configury.
1457 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-*)
1464 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1466 if test "$gcc_cv_gas_major_version" -eq 2 \
1467 -a "$gcc_cv_gas_minor_version" -ge 11 \
1468 -o "$gcc_cv_gas_major_version" -gt 2 \
1469 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1470 && test x"$insn" != x ; then
1471 gcc_cv_as_dwarf2_debug_line="yes"
1473 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1474 echo ' .file 0 "conftest.s"' > conftest.s
1475 echo ' .loc 0 3 0' >> conftest.s
1476 echo " $insn" >> conftest.s
1477 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1478 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1479 gcc_cv_as_dwarf2_debug_line="yes"
1481 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1483 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1484 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1485 [Define if your assembler supports dwarf2 .file/.loc directives.])
1487 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1489 # Figure out what language subdirectories are present.
1490 # Look if the user specified --enable-languages="..."; if not, use
1491 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1493 if test x"${enable_languages+set}" != xset; then
1494 if test x"${LANGUAGES+set}" = xset; then
1495 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1497 enable_languages=all
1500 if test x"${enable_languages}" = x; then
1501 AC_MSG_ERROR([--enable-languages needs at least one argument])
1505 for lang in ${srcdir}/*/config-lang.in ..
1509 # The odd quoting in the next line works around
1510 # an apparent bug in bash 1.12 on linux.
1512 ${srcdir}/[*]/config-lang.in) ;;
1514 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1515 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1516 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1517 if test "x$lang_alias" = x
1519 echo "$lang doesn't set \$language." 1>&2
1522 case ${build_by_default},${enable_languages}, in
1523 *,$lang_alias,*) add_this_lang=yes ;;
1524 no,*) add_this_lang=no ;;
1525 *,all,*) add_this_lang=yes ;;
1526 *) add_this_lang=no ;;
1528 if test x"${add_this_lang}" = xyes; then
1530 ${srcdir}/ada/config-lang.in)
1531 if test x$gnat = xyes ; then
1532 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1536 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1545 # Make gthr-default.h if we have a thread file.
1547 if test $thread_file != single; then
1548 rm -f gthr-default.h
1549 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1550 gthread_flags=-DHAVE_GTHR_DEFAULT
1552 AC_SUBST(gthread_flags)
1554 # Find out what GC implementation we want, or may, use.
1556 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1557 with the compiler.],
1563 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1566 [if test $ac_cv_func_mmap_anywhere = yes \
1567 || test $ac_cv_func_valloc = yes; then
1573 echo "Using $GGC for garbage collection."
1575 # Use the system's zlib library.
1577 zlibinc="-I\$(srcdir)/../zlib"
1578 AC_ARG_WITH(system-zlib,
1579 [ --with-system-zlib use installed libz],
1586 # Build a new-abi (c++) system
1587 AC_ARG_ENABLE(new-gxx-abi,
1588 [ --enable-new-gxx-abi
1589 select the new abi for g++. You must select an ABI
1590 at configuration time, so that the correct runtime
1591 support is built. You cannot mix ABIs.],
1593 enable_new_gxx_abi=yes)
1595 if test x$enable_new_gxx_abi = xyes; then
1596 AC_DEFINE(ENABLE_NEW_GXX_ABI, 1,
1597 [Define if you want to always select the new-abi for g++.])
1598 GXX_ABI_FLAG='-fnew-abi'
1602 AC_SUBST(GXX_ABI_FLAG)
1604 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, $ac_esn,
1605 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1606 AC_SUBST(HAVE_LIBSTDCXX_V3)
1608 dnl Very limited version of automake's enable-maintainer-mode
1610 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1611 dnl maintainer-mode is disabled by default
1612 AC_ARG_ENABLE(maintainer-mode,
1613 [ --enable-maintainer-mode enable make rules and dependencies not useful
1614 (and sometimes confusing) to the casual installer],
1615 maintainer_mode=$enableval,
1618 AC_MSG_RESULT($maintainer_mode)
1620 if test "$maintainer_mode" = "yes"; then
1627 # Make empty files to contain the specs and options for each language.
1628 # Then add #include lines to for a compiler that has specs and/or options.
1633 rm -f specs.h options.h gencheck.h
1634 touch specs.h options.h gencheck.h
1635 for subdir in . $subdirs
1637 if test -f $srcdir/$subdir/lang-specs.h; then
1638 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1639 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1641 if test -f $srcdir/$subdir/lang-options.h; then
1642 echo "#include \"$subdir/lang-options.h\"" >>options.h
1643 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1645 if test -f $srcdir/$subdir/$subdir-tree.def; then
1646 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1647 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1651 # These (without "all_") are set in each config-lang.in.
1652 # `language' must be a single word so is spelled singularly.
1658 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1659 # List of language makefile fragments.
1664 # Add the language fragments.
1665 # Languages are added via two mechanisms. Some information must be
1666 # recorded in makefile variables, these are defined in config-lang.in.
1667 # We accumulate them and plug them into the main Makefile.
1668 # The other mechanism is a set of hooks for each of the main targets
1669 # like `clean', `install', etc.
1671 language_fragments="Make-lang"
1672 language_hooks="Make-hooks"
1674 for s in .. $subdirs
1686 . ${srcdir}/$s/config-lang.in
1687 if test "x$language" = x
1689 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1692 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1693 if test -f ${srcdir}/$s/Makefile.in
1694 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1696 all_languages="$all_languages $language"
1697 if test "x$boot_language" = xyes
1699 all_boot_languages="$all_boot_languages $language"
1701 all_compilers="$all_compilers $compilers"
1702 all_stagestuff="$all_stagestuff $stagestuff"
1703 all_diff_excludes="$all_diff_excludes $diff_excludes"
1704 all_headers="$all_headers $headers"
1705 all_outputs="$all_outputs $outputs"
1706 all_lib2funcs="$all_lib2funcs $lib2funcs"
1710 # Since we can't use `::' targets, we link each language in
1711 # with a set of hooks, reached indirectly via lang.${target}.
1715 target_list="all.build all.cross start.encap rest.encap \
1717 install-normal install-common install-info install-man \
1719 mostlyclean clean distclean extraclean maintainer-clean \
1720 stage1 stage2 stage3 stage4"
1721 for t in $target_list
1724 for lang in .. $all_languages
1726 if test $lang != ".."; then
1730 echo "lang.$t: $x" >> Make-hooks
1733 # If we're not building in srcdir, create .gdbinit.
1735 if test ! -f Makefile.in; then
1736 echo "dir ." > .gdbinit
1737 echo "dir ${srcdir}" >> .gdbinit
1738 if test x$gdb_needs_out_file_path = xyes
1740 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1742 if test "x$subdirs" != x; then
1745 echo "dir ${srcdir}/$s" >> .gdbinit
1748 echo "source ${srcdir}/.gdbinit" >> .gdbinit
1751 # Define variables host_canonical and build_canonical
1752 # because some Cygnus local changes in the Makefile depend on them.
1753 build_canonical=${build}
1754 host_canonical=${host}
1756 if test "${host}" != "${target}" ; then
1757 target_subdir=${target}/
1759 AC_SUBST(build_canonical)
1760 AC_SUBST(host_canonical)
1761 AC_SUBST(target_subdir)
1763 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1764 # absolute path for gcc_tooldir based on inserting the number of up-directory
1765 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1766 # $(libsubdir)/@(unlibsubdir) based path.
1767 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1768 # make and thus we'd get different behavior depending on where we built the
1770 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1771 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1773 changequote(<<, >>)dnl
1774 # An explanation of the sed strings:
1775 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1776 # -e 's|/$||' match a trailing forward slash and eliminates it
1777 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1778 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1780 # (*) Note this pattern overwrites the first character of the string
1781 # with a forward slash if one is not already present. This is not a
1782 # problem because the exact names of the sub-directories concerned is
1783 # unimportant, just the number of them matters.
1785 # The practical upshot of these patterns is like this:
1787 # prefix exec_prefix result
1788 # ------ ----------- ------
1790 # /foo/ /foo/bar ../
1791 # /foo /foo/bar/ ../
1792 # /foo/ /foo/bar/ ../
1793 # /foo /foo/bar/ugg ../../
1796 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1797 changequote([, ])dnl
1799 AC_SUBST(gcc_tooldir)
1802 # Nothing to do for FLOAT_H, float_format already handled.
1806 # Process the language and host/target makefile fragments.
1807 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1809 # Substitute configuration variables
1811 AC_SUBST(all_boot_languages)
1812 AC_SUBST(all_compilers)
1813 AC_SUBST(all_diff_excludes)
1814 AC_SUBST(all_headers)
1815 AC_SUBST(all_lang_makefiles)
1816 AC_SUBST(all_languages)
1817 AC_SUBST(all_lib2funcs)
1818 AC_SUBST(all_stagestuff)
1819 AC_SUBST(build_exeext)
1820 AC_SUBST(build_install_headers_dir)
1821 AC_SUBST(build_xm_file_list)
1822 AC_SUBST(cc_set_by_configure)
1823 AC_SUBST(quoted_cc_set_by_configure)
1824 AC_SUBST(cpp_install_dir)
1825 AC_SUBST(dep_host_xmake_file)
1826 AC_SUBST(dep_tmake_file)
1827 AC_SUBST(extra_c_flags)
1828 AC_SUBST(extra_headers_list)
1829 AC_SUBST(extra_objs)
1830 AC_SUBST(extra_parts)
1831 AC_SUBST(extra_passes)
1832 AC_SUBST(extra_programs)
1833 AC_SUBST(float_h_file)
1834 AC_SUBST(gcc_config_arguments)
1835 AC_SUBST(gcc_gxx_include_dir)
1836 AC_SUBST(libstdcxx_incdir)
1837 AC_SUBST(gcc_version)
1838 AC_SUBST(gcc_version_full)
1839 AC_SUBST(gcc_version_trigger)
1840 AC_SUBST(host_exeext)
1841 AC_SUBST(host_extra_gcc_objs)
1842 AC_SUBST(host_xm_file_list)
1844 AC_SUBST(lang_options_files)
1845 AC_SUBST(lang_specs_files)
1846 AC_SUBST(lang_tree_files)
1847 AC_SUBST(local_prefix)
1848 AC_SUBST(maybe_use_collect2)
1850 AC_SUBST(objc_boehm_gc)
1852 AC_SUBST(out_object_file)
1853 AC_SUBST(stage_prefix_set_by_configure)
1854 AC_SUBST(symbolic_link)
1855 AC_SUBST(thread_file)
1856 AC_SUBST(tm_file_list)
1857 AC_SUBST(will_use_collect2)
1858 AC_SUBST(c_target_objs)
1859 AC_SUBST(cxx_target_objs)
1862 AC_SUBST_FILE(target_overrides)
1863 AC_SUBST_FILE(host_overrides)
1864 AC_SUBST(cross_defines)
1865 AC_SUBST_FILE(cross_overrides)
1866 AC_SUBST_FILE(build_overrides)
1867 AC_SUBST_FILE(language_fragments)
1868 AC_SUBST_FILE(language_hooks)
1870 # Echo that links are built
1871 if test x$host = x$target
1879 if test x$host != x$build
1881 str3=" on a $build system"
1884 if test "x$str2" != x || test "x$str3" != x
1889 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1891 if test "x$str2" != x || test "x$str3" != x
1893 echo " ${str2}${str3}." 1>&2
1896 # Truncate the target if necessary
1897 if test x$host_truncate_target != x; then
1898 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1901 # Configure the subdirectories
1902 # AC_CONFIG_SUBDIRS($subdirs)
1904 # Create the Makefile
1905 # and configure language subdirectories
1906 AC_OUTPUT($all_outputs,
1908 case x$CONFIG_HEADERS in
1909 xauto-host.h:config.in)
1912 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1913 # bootstrapping and the installation procedure can still use
1914 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
1915 # FLAGS_TO_PASS has been modified to solve the problem there.
1916 # This is virtually a duplicate of what happens in configure.lang; we do
1917 # an extra check to make sure this only happens if ln -s can be used.
1918 if test "$symbolic_link" = "ln -s"; then
1919 for d in .. ${subdirs} ; do
1920 if test $d != ..; then
1923 for t in stage1 stage2 stage3 stage4 include
1926 $symbolic_link ../$t $t 2>/dev/null
1932 # Avoid having to add intl to our include paths.
1933 if test -f intl/libintl.h; then
1934 echo creating libintl.h
1935 echo '#include "intl/libintl.h"' >libintl.h
1942 target_alias='${target_alias}'
1944 subdirs='${subdirs}'
1945 symbolic_link='${symbolic_link}'
1946 program_transform_set='${program_transform_set}'
1947 program_transform_name='${program_transform_name}'
1948 dep_host_xmake_file='${dep_host_xmake_file}'
1949 host_xmake_file='${host_xmake_file}'
1950 dep_tmake_file='${dep_tmake_file}'
1951 tmake_file='${tmake_file}'
1952 thread_file='${thread_file}'
1953 gcc_config_arguments='${gcc_config_arguments}'
1954 gcc_version='${gcc_version}'
1955 gcc_version_full='${gcc_version_full}'
1956 gcc_version_trigger='${gcc_version_trigger}'
1957 local_prefix='${local_prefix}'
1958 build_install_headers_dir='${build_install_headers_dir}'
1959 build_exeext='${build_exeext}'
1960 host_exeext='${host_exeext}'
1961 out_file='${out_file}'
1962 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
1963 SET_MAKE='${SET_MAKE}'
1964 target_list='${target_list}'
1965 target_overrides='${target_overrides}'
1966 host_overrides='${host_overrides}'
1967 cross_defines='${cross_defines}'
1968 cross_overrides='${cross_overrides}'
1969 build_overrides='${build_overrides}'
1970 cpp_install_dir='${cpp_install_dir}'