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 # Are perl and pod2man recent enough to regenerate manpages?
475 AC_MSG_CHECKING([for recent perl and Pod::Man])
476 if perl -e 'use v5.6.0; 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 $gcc_cv_enum_bf_unsigned = yes; then
537 AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
538 [Define if enumerated bitfields are treated as unsigned values.])
541 AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy \
542 strchr strrchr kill getrlimit setrlimit atoll atoq \
543 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
544 fputs_unlocked getrusage iconv nl_langinfo)
546 AC_CHECK_TYPE(ssize_t, int)
548 # Try to determine the array type of the second argument of getgroups
549 # for the target system (int or gid_t).
551 if test "${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
574 *** UWIN may not be used as a host platform because
575 *** linking with posix.dll is not allowed by the GNU GPL])
579 AC_FUNC_MMAP_ANYWHERE
582 # We will need to find libiberty.h and ansidecl.h
583 saved_CFLAGS="$CFLAGS"
584 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
585 gcc_AC_CHECK_DECLS(bcopy \
586 getenv atol sbrk abort atof getcwd getwd \
587 strsignal putc_unlocked fputs_unlocked strstr environ \
588 malloc realloc calloc free basename getopt, , ,[
589 #include "gansidecl.h"
590 #include "system.h"])
592 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
593 #include "gansidecl.h"
595 #ifdef HAVE_SYS_RESOURCE_H
596 #include <sys/resource.h>
600 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
601 CFLAGS="$saved_CFLAGS"
603 # mkdir takes a single argument on some systems.
604 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
614 build_install_headers_dir=install-headers-tar
619 host_truncate_target=
622 # Decode the host machine, then the target machine.
623 # For the host machine, we save the xm_file variable as host_xm_file;
624 # then we decode the target machine and forget everything else
625 # that came from the host machine.
626 for machine in $build $host $target; do
627 . ${srcdir}/config.gcc
630 extra_objs="${host_extra_objs} ${extra_objs}"
632 # Default the target-machine variables that were not explicitly set.
633 if test x"$tm_file" = x
634 then tm_file=$cpu_type/$cpu_type.h; fi
636 if test x"$extra_headers" = x
637 then extra_headers=; fi
639 if test x"$xm_file" = x
640 then xm_file=$cpu_type/xm-$cpu_type.h; fi
642 if test x$md_file = x
643 then md_file=$cpu_type/$cpu_type.md; fi
645 if test x$out_file = x
646 then out_file=$cpu_type/$cpu_type.c; fi
648 if test x"$tmake_file" = x
649 then tmake_file=$cpu_type/t-$cpu_type
652 if test x"$dwarf2" = xyes
653 then tm_file="$tm_file tm-dwarf2.h"
656 if test x$float_format = x
657 then float_format=i64
660 if test $float_format = none
661 then float_h_file=Makefile.in
662 else float_h_file=float-$float_format.h
665 # Handle cpp installation.
666 if test x$enable_cpp != xno
668 tmake_file="$tmake_file t-install-cpp"
671 # Say what files are being used for the output code and MD file.
672 echo "Using \`$srcdir/config/$out_file' to output insns."
673 echo "Using \`$srcdir/config/$md_file' as machine description file."
676 for f in $tm_file; do
679 if test $count = ax; then
680 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
682 echo "Using the following target machine macro files:"
683 for f in $tm_file; do
684 echo " $srcdir/config/$f"
689 for f in $host_xm_file; do
692 if test $count = ax; then
693 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
695 echo "Using the following host machine macro files:"
696 for f in $host_xm_file; do
697 echo " $srcdir/config/$f"
701 if test "$host_xm_file" != "$build_xm_file"; then
703 for f in $build_xm_file; do
706 if test $count = ax; then
707 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
709 echo "Using the following build machine macro files:"
710 for f in $build_xm_file; do
711 echo " $srcdir/config/$f"
716 if test x$thread_file = x; then
717 if test x$target_thread_file != x; then
718 thread_file=$target_thread_file
724 # Set up the header files.
725 # $links is the list of header files to create.
726 # $vars is the list of shell variables with file names to include.
727 # auto-host.h is the file containing items generated by autoconf and is
728 # the first file included by config.h.
730 host_xm_file="auto-host.h gansidecl.h ${host_xm_file} hwint.h"
732 # If host=build, it is correct to have hconfig include auto-host.h
733 # as well. If host!=build, we are in error and need to do more
734 # work to find out the build config parameters.
735 if test x$host = x$build
737 build_xm_file="auto-host.h gansidecl.h ${build_xm_file} hwint.h"
739 # We create a subdir, then run autoconf in the subdir.
740 # To prevent recursion we set host and build for the new
741 # invocation of configure to the build for this invocation
748 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
749 *) realsrcdir=../${srcdir};;
751 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
752 --target=$target --host=$build --build=$build
754 # We just finished tests for the build machine, so rename
755 # the file auto-build.h in the gcc directory.
756 mv auto-host.h ../auto-build.h
759 build_xm_file="auto-build.h gansidecl.h ${build_xm_file} hwint.h"
762 xm_file="gansidecl.h ${xm_file}"
763 tm_file="gansidecl.h ${tm_file}"
765 vars="host_xm_file tm_file tm_p_file xm_file build_xm_file"
766 links="config.h tm.h tm_p.h tconfig.h hconfig.h"
767 defines="host_xm_defines null_defines null_defines xm_defines build_xm_defines"
770 if test -f config.status; then mv -f config.status config.bak; fi
773 while test -n "$vars"
775 set $vars; var=$1; shift; vars=$*
776 set $links; link=$1; shift; links=$*
777 set $defines; define=$1; shift; defines=$*
780 # Make sure the file is created, even if it is empty.
783 # Define TARGET_CPU_DEFAULT if the system wants one.
784 # This substitutes for lots of *.h files.
785 if test "$target_cpu_default" != "" -a $link = tm.h
787 echo "#define TARGET_CPU_DEFAULT ($target_cpu_default)" >>$link
790 for file in `eval echo '$'$var`; do
792 auto-host.h | auto-build.h )
795 echo '#ifdef IN_GCC' >>$link
798 echo "#include \"$file\"" >>$link
800 auto-host.h | auto-build.h )
803 echo '#endif' >>$link
808 for def in `eval echo '$'$define`; do
809 echo "#ifndef $def" >>$link
810 echo "#define $def" >>$link
811 echo "#endif" >>$link
816 # Include insn-codes.h last, because it includes machmode.h,
817 # and we want EXTRA_CC_MODES to be taken into account.
818 echo "#ifndef GENERATOR_FILE" >>$link
819 echo "#include \"insn-codes.h\"" >>$link
820 echo "#endif" >>$link
824 # Truncate the target if necessary
825 if test x$host_truncate_target != x; then
826 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
829 # Get the version trigger filename from the toplevel
830 if test "${with_gcc_version_trigger+set}" = set; then
831 gcc_version_trigger=$with_gcc_version_trigger
833 gcc_version_trigger=${srcdir}/version.c
836 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
837 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
839 # Compile in configure arguments.
840 if test -f configargs.h ; then
841 # Being re-configured.
842 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
843 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
845 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
847 cat > configargs.h <<EOF
848 /* Generated automatically. */
849 static const char configuration_arguments[] = "$gcc_config_arguments";
853 # Internationalization
855 VERSION="$gcc_version"
856 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
857 [Define to the name of the distribution.])
858 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
859 [Define to the version of the distribution.])
865 # Enable NLS support by default
867 [ --enable-nls use Native Language Support (default)],
870 # if cross compiling, disable NLS support.
871 # It's not worth the trouble, at least for now.
873 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
874 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
878 # if NLS is enabled, also enable check in po subdir
879 if test $enable_nls = yes; then
888 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
890 # Windows32 Registry support for specifying GCC installation paths.
891 AC_ARG_ENABLE(win32-registry,
892 [ --disable-win32-registry
893 Disable lookup of installation paths in the
894 Registry on Windows hosts.
895 --enable-win32-registry Enable registry lookup (default).
896 --enable-win32-registry=KEY
897 Use KEY instead of GCC version as the last portion
898 of the registry key.],,)
900 AC_MSG_CHECKING(whether windows registry support is requested)
901 if test x$enable_win32_registry != xno; then
902 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
903 [Define to 1 if installation paths should be looked up in Windows32
904 Registry. Ignored on non windows32 hosts.])
910 # Check if user specified a different registry key.
911 case x${enable_win32_registry} in
914 gcc_cv_win32_registry_key="$VERSION"
917 # no registry lookup.
918 gcc_cv_win32_registry_key=''
921 # user-specified key.
922 gcc_cv_win32_registry_key="$enable_win32_registry"
926 if test x$enable_win32_registry != xno; then
927 AC_MSG_CHECKING(registry key on windows hosts)
928 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
929 [Define to be the last portion of registry key on windows hosts.])
930 AC_MSG_RESULT($gcc_cv_win32_registry_key)
933 # Get an absolute path to the GCC top-level source directory
939 # Conditionalize the makefile for this host machine.
940 # Make-host contains the concatenation of all host makefile fragments
941 # [there can be more than one]. This file is built by configure.frag.
942 host_overrides=Make-host
944 for f in .. ${host_xmake_file}
946 if test -f ${srcdir}/config/$f
948 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
952 # Conditionalize the makefile for this target machine.
953 # Make-target contains the concatenation of all host makefile fragments
954 # [there can be more than one]. This file is built by configure.frag.
955 target_overrides=Make-target
957 for f in .. ${tmake_file}
959 if test -f ${srcdir}/config/$f
961 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
965 # If the host doesn't support symlinks, modify CC in
966 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
967 # Otherwise, we can use "CC=$(CC)".
969 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
971 cc_set_by_configure="\$(CC)"
972 quoted_cc_set_by_configure="\$(CC)"
973 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
976 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
978 symbolic_link="cp -p"
982 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
983 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
984 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
988 out_object_file=`basename $out_file .c`.o
991 for f in $tm_file; do
994 tm_file_list="${tm_file_list} $f" ;;
995 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1000 for f in $host_xm_file; do
1002 auto-host.h | gansidecl.h | hwint.h )
1003 host_xm_file_list="${host_xm_file_list} $f" ;;
1004 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1009 for f in $build_xm_file; do
1011 auto-build.h | auto-host.h | gansidecl.h | hwint.h )
1012 build_xm_file_list="${build_xm_file_list} $f" ;;
1013 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1017 # Define macro CROSS_COMPILE in compilation
1018 # if this is a cross-compiler.
1019 # Also use all.cross instead of all.internal
1020 # and add cross-make to Makefile.
1021 cross_overrides="/dev/null"
1022 if test x$host != x$target
1024 cross_defines="CROSS=-DCROSS_COMPILE"
1025 cross_overrides="${topdir}/cross-make"
1028 # If this is a cross-compiler that does not
1029 # have its own set of headers then define
1032 # If this is using newlib, then define inhibit_libc in
1033 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1034 # libgcc.a, but that's OK because newlib should have its own version of
1037 if [test x$host != x$target] && [test x$with_headers = x]; then
1038 inhibit_libc=-Dinhibit_libc
1040 if [test x$with_newlib = xyes]; then
1041 inhibit_libc=-Dinhibit_libc
1044 AC_SUBST(inhibit_libc)
1046 # When building gcc with a cross-compiler, we need to fix a few things.
1047 # This must come after cross-make as we want all.build to override
1049 build_overrides="/dev/null"
1050 if test x$build != x$host
1052 build_overrides="${topdir}/build-make"
1055 # Expand extra_headers to include complete path.
1056 # This substitutes for lots of t-* files.
1058 if test "x$extra_headers" = x
1061 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1062 for file in $extra_headers;
1064 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1068 if test x$use_collect2 = xno; then
1072 # Add a definition of USE_COLLECT2 if system wants one.
1073 # Also tell toplev.c what to do.
1074 # This substitutes for lots of t-* files.
1075 if test x$use_collect2 = x
1080 will_use_collect2="collect2"
1081 maybe_use_collect2="-DUSE_COLLECT2"
1084 # If we have gas in the build tree, make a link to it.
1085 if test -f ../gas/Makefile; then
1086 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1089 # If we have nm in the build tree, make a link to it.
1090 if test -f ../binutils/Makefile; then
1091 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1094 # If we have ld in the build tree, make a link to it.
1095 if test -f ../ld/Makefile; then
1096 # if test x$use_collect2 = x; then
1097 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1099 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1103 # Figure out what assembler we will be using.
1104 AC_MSG_CHECKING(what assembler to use)
1106 gcc_cv_gas_major_version=
1107 gcc_cv_gas_minor_version=
1108 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1109 if test -x "$DEFAULT_ASSEMBLER"; then
1110 gcc_cv_as="$DEFAULT_ASSEMBLER"
1111 elif test -x "$AS"; then
1113 elif test -x as$host_exeext; then
1114 # Build using assembler in the current directory.
1115 gcc_cv_as=./as$host_exeext
1116 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1117 # Single tree build which includes gas.
1118 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1121 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1123 if test x$gcc_cv_gas_version != x; then
1128 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1129 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1133 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1135 # Search the same directories that the installed compiler will
1136 # search. Else we may find the wrong assembler and lose. If we
1137 # do not find a suitable assembler binary, then try the user's
1140 # Also note we have to check MD_EXEC_PREFIX before checking the
1141 # user's path. Unfortunately, there is no good way to get at the
1142 # value of MD_EXEC_PREFIX here. So we do a brute force search
1143 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1144 # to be fixed as part of the make/configure rewrite too.
1146 if test "x$exec_prefix" = xNONE; then
1147 if test "x$prefix" = xNONE; then
1148 test_prefix=/usr/local
1153 test_prefix=$exec_prefix
1156 # If the loop below does not find an assembler, then use whatever
1157 # one we can find in the users's path.
1161 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1162 $test_prefix/lib/gcc-lib/$target \
1163 /usr/lib/gcc/$target/$gcc_version \
1164 /usr/lib/gcc/$target \
1165 $test_prefix/$target/bin/$target/$gcc_version \
1166 $test_prefix/$target/bin \
1171 /bsd43/usr/lib/cmplrs/cc \
1172 /usr/cross64/usr/bin \
1173 /usr/lib/cmplrs/cc \
1174 /sysv/usr/lib/cmplrs/cc \
1175 /svr4/usr/lib/cmplrs/cc \
1178 for dir in $test_dirs; do
1179 if test -f $dir/as$host_exeext; then
1180 gcc_cv_as=$dir/as$host_exeext
1185 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1186 AC_MSG_RESULT("newly built gas")
1188 AC_MSG_RESULT($gcc_cv_as)
1191 # Figure out what nm we will be using.
1192 AC_MSG_CHECKING(what nm to use)
1193 if test -x nm$host_exeext; then
1194 gcc_cv_nm=./nm$host_exeext
1195 elif test x$host = x$target; then
1197 gcc_cv_nm=nm$host_exeext
1199 AC_MSG_RESULT($gcc_cv_nm)
1201 # Figure out what assembler alignment features are present.
1202 AC_MSG_CHECKING(assembler alignment features)
1203 gcc_cv_as_alignment_features=none
1204 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1205 # Gas version 2.6 and later support for .balign and .p2align.
1206 # bytes to skip when using .p2align.
1207 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1208 gcc_cv_as_alignment_features=".balign and .p2align"
1209 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1211 # Gas version 2.8 and later support specifying the maximum
1212 # bytes to skip when using .p2align.
1213 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1214 gcc_cv_as_alignment_features=".p2align including maximum skip"
1215 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1217 elif test x$gcc_cv_as != x; then
1218 # Check if we have .balign and .p2align
1219 echo ".balign 4" > conftest.s
1220 echo ".p2align 2" >> conftest.s
1221 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1222 gcc_cv_as_alignment_features=".balign and .p2align"
1223 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1225 rm -f conftest.s conftest.o
1226 # Check if specifying the maximum bytes to skip when
1227 # using .p2align is supported.
1228 echo ".p2align 4,,7" > conftest.s
1229 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1230 gcc_cv_as_alignment_features=".p2align including maximum skip"
1231 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1233 rm -f conftest.s conftest.o
1235 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1237 AC_MSG_CHECKING(assembler subsection support)
1238 gcc_cv_as_subsections=no
1239 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1240 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1241 gcc_cv_as_subsections="working .subsection -1"
1243 elif test x$gcc_cv_as != x; then
1244 # Check if we have .subsection
1245 echo ".subsection 1" > conftest.s
1246 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1247 gcc_cv_as_subsections=".subsection"
1248 if test x$gcc_cv_nm != x; then
1249 cat > conftest.s <<EOF
1250 conftest_label1: .word 0
1252 conftest_label2: .word 0
1255 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1256 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1257 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1258 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1261 gcc_cv_as_subsections="working .subsection -1"
1266 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1268 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1269 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1270 [Define if your assembler supports .subsection and .subsection -1 starts
1271 emitting at the beginning of your section.])
1273 AC_MSG_RESULT($gcc_cv_as_subsections)
1275 AC_MSG_CHECKING(assembler weak support)
1277 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1278 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1279 gcc_cv_as_weak="yes"
1281 elif test x$gcc_cv_as != x; then
1282 # Check if we have .weak
1283 echo " .weak foobar" > conftest.s
1284 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1285 gcc_cv_as_weak="yes"
1287 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1289 if test x"$gcc_cv_as_weak" = xyes; then
1290 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1292 AC_MSG_RESULT($gcc_cv_as_weak)
1294 AC_MSG_CHECKING(assembler hidden support)
1296 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1297 if test "$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
1298 gcc_cv_as_hidden="yes"
1300 elif test x$gcc_cv_as != x; then
1301 # Check if we have .hidden
1302 echo " .hidden foobar" > conftest.s
1303 echo "foobar:" >> conftest.s
1304 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1305 gcc_cv_as_hidden="yes"
1307 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1309 if test x"$gcc_cv_as_hidden" = xyes; then
1310 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1311 [Define if your assembler supports .hidden.])
1313 AC_MSG_RESULT($gcc_cv_as_hidden)
1317 AC_CACHE_CHECK([assembler .register pseudo-op support],
1318 gcc_cv_as_register_pseudo_op, [
1319 gcc_cv_as_register_pseudo_op=unknown
1320 if test x$gcc_cv_as != x; then
1321 # Check if we have .register
1322 echo ".register %g2, #scratch" > conftest.s
1323 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1324 gcc_cv_as_register_pseudo_op=yes
1326 gcc_cv_as_register_pseudo_op=no
1328 rm -f conftest.s conftest.o
1331 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1332 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1333 [Define if your assembler supports .register.])
1336 AC_CACHE_CHECK([assembler supports -relax],
1337 gcc_cv_as_relax_opt, [
1338 gcc_cv_as_relax_opt=unknown
1339 if test x$gcc_cv_as != x; then
1340 # Check if gas supports -relax
1341 echo ".text" > conftest.s
1342 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1343 gcc_cv_as_relax_opt=yes
1345 gcc_cv_as_relax_opt=no
1347 rm -f conftest.s conftest.o
1350 if test "x$gcc_cv_as_relax_opt" = xyes; then
1351 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1352 [Define if your assembler supports -relax option.])
1357 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1358 gcc_cv_as_flags64, [
1359 if test -n "$gcc_cv_as"; then
1360 echo ".xword foo" > conftest.s
1361 gcc_cv_as_flags64=no
1362 for flag in "-xarch=v9" "-64 -Av9"; do
1363 if $gcc_cv_as $flag -o conftest.o conftest.s \
1364 > /dev/null 2>&1; then
1365 gcc_cv_as_flags64=$flag
1369 rm -f conftest.s conftest.o
1371 if test "$gas" = yes; then
1372 gcc_cv_as_flags64="-64 -Av9"
1374 gcc_cv_as_flags64="-xarch=v9"
1378 if test "x$gcc_cv_as_flags64" = xno; then
1380 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1381 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1384 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1385 [Define if the assembler supports 64bit sparc.])
1388 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1392 if test "x$gcc_cv_as_flags64" != xno; then
1393 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1394 gcc_cv_as_offsetable_lo10, [
1395 gcc_cv_as_offsetable_lo10=unknown
1396 if test "x$gcc_cv_as" != x; then
1397 # Check if assembler has offsetable %lo()
1398 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1399 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1400 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1402 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1403 > /dev/null 2>&1; then
1404 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1405 gcc_cv_as_offsetable_lo10=no
1407 gcc_cv_as_offsetable_lo10=yes
1410 gcc_cv_as_offsetable_lo10=no
1412 rm -f conftest.s conftest.o conftest1.s conftest1.o
1415 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1416 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1417 [Define if your assembler supports offsetable %lo().])
1425 AC_MSG_CHECKING(assembler instructions)
1426 gcc_cv_as_instructions=
1427 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1428 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1429 gcc_cv_as_instructions="filds fists"
1431 elif test x$gcc_cv_as != x; then
1432 set "filds fists" "filds mem; fists mem"
1435 echo "$2" > conftest.s
1436 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1437 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1441 rm -f conftest.s conftest.o
1443 if test x"$gcc_cv_as_instructions" != x; then
1444 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1446 AC_MSG_RESULT($gcc_cv_as_instructions)
1450 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1451 gcc_cv_as_dwarf2_debug_line=no
1452 # ??? Not all targets support dwarf2 debug_line, even within a version
1453 # of gas. Moreover, we need to emit a valid instruction to trigger any
1454 # info to the output file. So, as supported targets are added to gas 2.11,
1455 # add some instruction here to (also) show we expect this might work.
1456 # ??? Once 2.11 is released, probably need to add first known working
1457 # version to the per-target configury.
1459 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-*)
1466 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1468 if test "$gcc_cv_gas_major_version" -eq 2 \
1469 -a "$gcc_cv_gas_minor_version" -ge 11 \
1470 -o "$gcc_cv_gas_major_version" -gt 2 \
1471 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1472 && test x"$insn" != x ; then
1473 gcc_cv_as_dwarf2_debug_line="yes"
1475 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1476 echo ' .file 0 "conftest.s"' > conftest.s
1477 echo ' .loc 0 3 0' >> conftest.s
1478 echo " $insn" >> conftest.s
1479 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1480 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1481 gcc_cv_as_dwarf2_debug_line="yes"
1483 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1485 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1486 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1487 [Define if your assembler supports dwarf2 .file/.loc directives.])
1489 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1491 # Figure out what language subdirectories are present.
1492 # Look if the user specified --enable-languages="..."; if not, use
1493 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1495 if test x"${enable_languages+set}" != xset; then
1496 if test x"${LANGUAGES+set}" = xset; then
1497 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1499 enable_languages=all
1502 if test x"${enable_languages}" = x; then
1503 AC_MSG_ERROR([--enable-languages needs at least one argument])
1507 for lang in ${srcdir}/*/config-lang.in ..
1511 # The odd quoting in the next line works around
1512 # an apparent bug in bash 1.12 on linux.
1514 ${srcdir}/[*]/config-lang.in) ;;
1516 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1517 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1518 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1519 if test "x$lang_alias" = x
1521 echo "$lang doesn't set \$language." 1>&2
1524 case ${build_by_default},${enable_languages}, in
1525 *,$lang_alias,*) add_this_lang=yes ;;
1526 no,*) add_this_lang=no ;;
1527 *,all,*) add_this_lang=yes ;;
1528 *) add_this_lang=no ;;
1530 if test x"${add_this_lang}" = xyes; then
1532 ${srcdir}/ada/config-lang.in)
1533 if test x$gnat = xyes ; then
1534 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1538 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1547 # Make gthr-default.h if we have a thread file.
1549 if test $thread_file != single; then
1550 rm -f gthr-default.h
1551 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1552 gthread_flags=-DHAVE_GTHR_DEFAULT
1554 AC_SUBST(gthread_flags)
1556 # Find out what GC implementation we want, or may, use.
1558 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1559 with the compiler.],
1565 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1570 echo "Using $GGC for garbage collection."
1572 # Use the system's zlib library.
1574 zlibinc="-I\$(srcdir)/../zlib"
1575 AC_ARG_WITH(system-zlib,
1576 [ --with-system-zlib use installed libz],
1583 # Build a new-abi (c++) system
1584 AC_ARG_ENABLE(new-gxx-abi,
1585 [ --enable-new-gxx-abi
1586 select the new abi for g++. You must select an ABI
1587 at configuration time, so that the correct runtime
1588 support is built. You cannot mix ABIs.],
1590 enable_new_gxx_abi=yes)
1592 if test x$enable_new_gxx_abi = xyes; then
1593 AC_DEFINE(ENABLE_NEW_GXX_ABI, 1,
1594 [Define if you want to always select the new-abi for g++.])
1595 GXX_ABI_FLAG='-fnew-abi'
1599 AC_SUBST(GXX_ABI_FLAG)
1601 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, $ac_esn,
1602 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1603 AC_SUBST(HAVE_LIBSTDCXX_V3)
1605 dnl Very limited version of automake's enable-maintainer-mode
1607 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1608 dnl maintainer-mode is disabled by default
1609 AC_ARG_ENABLE(maintainer-mode,
1610 [ --enable-maintainer-mode enable make rules and dependencies not useful
1611 (and sometimes confusing) to the casual installer],
1612 maintainer_mode=$enableval,
1615 AC_MSG_RESULT($maintainer_mode)
1617 if test "$maintainer_mode" = "yes"; then
1624 # Make empty files to contain the specs and options for each language.
1625 # Then add #include lines to for a compiler that has specs and/or options.
1630 rm -f specs.h options.h gencheck.h
1631 touch specs.h options.h gencheck.h
1632 for subdir in . $subdirs
1634 if test -f $srcdir/$subdir/lang-specs.h; then
1635 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1636 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1638 if test -f $srcdir/$subdir/lang-options.h; then
1639 echo "#include \"$subdir/lang-options.h\"" >>options.h
1640 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1642 if test -f $srcdir/$subdir/$subdir-tree.def; then
1643 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1644 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1648 # These (without "all_") are set in each config-lang.in.
1649 # `language' must be a single word so is spelled singularly.
1655 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1656 # List of language makefile fragments.
1661 # Add the language fragments.
1662 # Languages are added via two mechanisms. Some information must be
1663 # recorded in makefile variables, these are defined in config-lang.in.
1664 # We accumulate them and plug them into the main Makefile.
1665 # The other mechanism is a set of hooks for each of the main targets
1666 # like `clean', `install', etc.
1668 language_fragments="Make-lang"
1669 language_hooks="Make-hooks"
1671 for s in .. $subdirs
1683 . ${srcdir}/$s/config-lang.in
1684 if test "x$language" = x
1686 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1689 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1690 if test -f ${srcdir}/$s/Makefile.in
1691 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1693 all_languages="$all_languages $language"
1694 if test "x$boot_language" = xyes
1696 all_boot_languages="$all_boot_languages $language"
1698 all_compilers="$all_compilers $compilers"
1699 all_stagestuff="$all_stagestuff $stagestuff"
1700 all_diff_excludes="$all_diff_excludes $diff_excludes"
1701 all_headers="$all_headers $headers"
1702 all_outputs="$all_outputs $outputs"
1703 all_lib2funcs="$all_lib2funcs $lib2funcs"
1707 # Since we can't use `::' targets, we link each language in
1708 # with a set of hooks, reached indirectly via lang.${target}.
1712 target_list="all.build all.cross start.encap rest.encap \
1714 install-normal install-common install-info install-man \
1716 mostlyclean clean distclean extraclean maintainer-clean \
1717 stage1 stage2 stage3 stage4"
1718 for t in $target_list
1721 for lang in .. $all_languages
1723 if test $lang != ".."; then
1727 echo "lang.$t: $x" >> Make-hooks
1730 # If we're not building in srcdir, create .gdbinit.
1732 if test ! -f Makefile.in; then
1733 echo "dir ." > .gdbinit
1734 echo "dir ${srcdir}" >> .gdbinit
1735 if test x$gdb_needs_out_file_path = xyes
1737 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1739 if test "x$subdirs" != x; then
1742 echo "dir ${srcdir}/$s" >> .gdbinit
1745 echo "source ${srcdir}/.gdbinit" >> .gdbinit
1748 # Define variables host_canonical and build_canonical
1749 # because some Cygnus local changes in the Makefile depend on them.
1750 build_canonical=${build}
1751 host_canonical=${host}
1753 if test "${host}" != "${target}" ; then
1754 target_subdir=${target}/
1756 AC_SUBST(build_canonical)
1757 AC_SUBST(host_canonical)
1758 AC_SUBST(target_subdir)
1760 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1761 # absolute path for gcc_tooldir based on inserting the number of up-directory
1762 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1763 # $(libsubdir)/@(unlibsubdir) based path.
1764 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1765 # make and thus we'd get different behavior depending on where we built the
1767 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1768 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1770 changequote(<<, >>)dnl
1771 # An explanation of the sed strings:
1772 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1773 # -e 's|/$||' match a trailing forward slash and eliminates it
1774 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1775 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1777 # (*) Note this pattern overwrites the first character of the string
1778 # with a forward slash if one is not already present. This is not a
1779 # problem because the exact names of the sub-directories concerned is
1780 # unimportant, just the number of them matters.
1782 # The practical upshot of these patterns is like this:
1784 # prefix exec_prefix result
1785 # ------ ----------- ------
1787 # /foo/ /foo/bar ../
1788 # /foo /foo/bar/ ../
1789 # /foo/ /foo/bar/ ../
1790 # /foo /foo/bar/ugg ../../
1793 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1794 changequote([, ])dnl
1796 AC_SUBST(gcc_tooldir)
1799 # Find a directory in which to install a shared libgcc.
1801 AC_ARG_ENABLE(version-specific-runtime-libs,
1802 [ --enable-version-specific-runtime-libs Specify that runtime libraries shou
1803 ld be installed in a compiler-specific directory ])
1805 AC_ARG_WITH(slibdir,
1806 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
1807 slibdir="$with_slibdir",
1808 if test "${enable_version_specific_runtime_libs+set}" = set; then
1809 slibdir='$(libsubdir)'
1810 elif test "$host" != "$target"; then
1811 slibdir='$(build_tooldir)/lib'
1817 # Nothing to do for FLOAT_H, float_format already handled.
1821 # Process the language and host/target makefile fragments.
1822 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1824 # Substitute configuration variables
1826 AC_SUBST(all_boot_languages)
1827 AC_SUBST(all_compilers)
1828 AC_SUBST(all_diff_excludes)
1829 AC_SUBST(all_headers)
1830 AC_SUBST(all_lang_makefiles)
1831 AC_SUBST(all_languages)
1832 AC_SUBST(all_lib2funcs)
1833 AC_SUBST(all_stagestuff)
1834 AC_SUBST(build_exeext)
1835 AC_SUBST(build_install_headers_dir)
1836 AC_SUBST(build_xm_file_list)
1837 AC_SUBST(cc_set_by_configure)
1838 AC_SUBST(quoted_cc_set_by_configure)
1839 AC_SUBST(cpp_install_dir)
1840 AC_SUBST(dep_host_xmake_file)
1841 AC_SUBST(dep_tmake_file)
1842 AC_SUBST(extra_c_flags)
1843 AC_SUBST(extra_headers_list)
1844 AC_SUBST(extra_objs)
1845 AC_SUBST(extra_parts)
1846 AC_SUBST(extra_passes)
1847 AC_SUBST(extra_programs)
1848 AC_SUBST(float_h_file)
1849 AC_SUBST(gcc_config_arguments)
1850 AC_SUBST(gcc_gxx_include_dir)
1851 AC_SUBST(libstdcxx_incdir)
1852 AC_SUBST(gcc_version)
1853 AC_SUBST(gcc_version_full)
1854 AC_SUBST(gcc_version_trigger)
1855 AC_SUBST(host_exeext)
1856 AC_SUBST(host_extra_gcc_objs)
1857 AC_SUBST(host_xm_file_list)
1859 AC_SUBST(lang_options_files)
1860 AC_SUBST(lang_specs_files)
1861 AC_SUBST(lang_tree_files)
1862 AC_SUBST(local_prefix)
1863 AC_SUBST(maybe_use_collect2)
1865 AC_SUBST(objc_boehm_gc)
1867 AC_SUBST(out_object_file)
1868 AC_SUBST(stage_prefix_set_by_configure)
1869 AC_SUBST(symbolic_link)
1870 AC_SUBST(thread_file)
1871 AC_SUBST(tm_file_list)
1872 AC_SUBST(will_use_collect2)
1873 AC_SUBST(c_target_objs)
1874 AC_SUBST(cxx_target_objs)
1877 AC_SUBST_FILE(target_overrides)
1878 AC_SUBST_FILE(host_overrides)
1879 AC_SUBST(cross_defines)
1880 AC_SUBST_FILE(cross_overrides)
1881 AC_SUBST_FILE(build_overrides)
1882 AC_SUBST_FILE(language_fragments)
1883 AC_SUBST_FILE(language_hooks)
1885 # Echo that links are built
1886 if test x$host = x$target
1894 if test x$host != x$build
1896 str3=" on a $build system"
1899 if test "x$str2" != x || test "x$str3" != x
1904 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1906 if test "x$str2" != x || test "x$str3" != x
1908 echo " ${str2}${str3}." 1>&2
1911 # Truncate the target if necessary
1912 if test x$host_truncate_target != x; then
1913 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1916 # Configure the subdirectories
1917 # AC_CONFIG_SUBDIRS($subdirs)
1919 # Create the Makefile
1920 # and configure language subdirectories
1921 AC_OUTPUT($all_outputs,
1923 case x$CONFIG_HEADERS in
1924 xauto-host.h:config.in)
1927 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1928 # bootstrapping and the installation procedure can still use
1929 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
1930 # FLAGS_TO_PASS has been modified to solve the problem there.
1931 # This is virtually a duplicate of what happens in configure.lang; we do
1932 # an extra check to make sure this only happens if ln -s can be used.
1933 if test "$symbolic_link" = "ln -s"; then
1934 for d in .. ${subdirs} ; do
1935 if test $d != ..; then
1938 for t in stage1 stage2 stage3 stage4 include
1941 $symbolic_link ../$t $t 2>/dev/null
1947 # Avoid having to add intl to our include paths.
1948 if test -f intl/libintl.h; then
1949 echo creating libintl.h
1950 echo '#include "intl/libintl.h"' >libintl.h
1957 target_alias='${target_alias}'
1959 subdirs='${subdirs}'
1960 symbolic_link='${symbolic_link}'
1961 program_transform_set='${program_transform_set}'
1962 program_transform_name='${program_transform_name}'
1963 dep_host_xmake_file='${dep_host_xmake_file}'
1964 host_xmake_file='${host_xmake_file}'
1965 dep_tmake_file='${dep_tmake_file}'
1966 tmake_file='${tmake_file}'
1967 thread_file='${thread_file}'
1968 gcc_config_arguments='${gcc_config_arguments}'
1969 gcc_version='${gcc_version}'
1970 gcc_version_full='${gcc_version_full}'
1971 gcc_version_trigger='${gcc_version_trigger}'
1972 local_prefix='${local_prefix}'
1973 build_install_headers_dir='${build_install_headers_dir}'
1974 build_exeext='${build_exeext}'
1975 host_exeext='${host_exeext}'
1976 out_file='${out_file}'
1977 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
1978 SET_MAKE='${SET_MAKE}'
1979 target_list='${target_list}'
1980 target_overrides='${target_overrides}'
1981 host_overrides='${host_overrides}'
1982 cross_defines='${cross_defines}'
1983 cross_overrides='${cross_overrides}'
1984 build_overrides='${build_overrides}'
1985 cpp_install_dir='${cpp_install_dir}'