1 # configure.in for GNU CC
2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
6 #This file is part of GNU CC.
8 #GNU CC is free software; you can redistribute it and/or modify
9 #it under the terms of the GNU General Public License as published by
10 #the Free Software Foundation; either version 2, or (at your option)
13 #GNU CC is distributed in the hope that it will be useful,
14 #but WITHOUT ANY WARRANTY; without even the implied warranty of
15 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 #GNU General Public License for more details.
18 #You should have received a copy of the GNU General Public License
19 #along with GNU CC; see the file COPYING. If not, write to
20 #the Free Software Foundation, 59 Temple Place - Suite 330,
21 #Boston, MA 02111-1307, USA.
23 # Initialization and defaults
26 AC_CONFIG_HEADER(auto-host.h:config.in)
33 # Check for bogus environment variables.
34 # Test if LIBRARY_PATH contains the notation for the current directory
35 # since this would lead to problems installing/building glibc.
36 # LIBRARY_PATH contains the current directory if one of the following
38 # - one of the terminals (":" and ";") is the first or last sign
39 # - two terminals occur directly after each other
40 # - the path contains an element with a dot in it
41 AC_MSG_CHECKING(LIBRARY_PATH variable)
43 case ${LIBRARY_PATH} in
44 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
45 library_path_setting="contains current directory"
48 library_path_setting="ok"
52 AC_MSG_RESULT($library_path_setting)
53 if test "$library_path_setting" != "ok"; then
55 *** LIBRARY_PATH shouldn't contain the current directory when
56 *** building gcc. Please change the environment variable
57 *** and run configure again.])
60 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
61 # since this would lead to problems installing/building glibc.
62 # GCC_EXEC_PREFIX contains the current directory if one of the following
64 # - one of the terminals (":" and ";") is the first or last sign
65 # - two terminals occur directly after each other
66 # - the path contains an element with a dot in it
67 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
69 case ${GCC_EXEC_PREFIX} in
70 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
71 gcc_exec_prefix_setting="contains current directory"
74 gcc_exec_prefix_setting="ok"
78 AC_MSG_RESULT($gcc_exec_prefix_setting)
79 if test "$gcc_exec_prefix_setting" != "ok"; then
81 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
82 *** building gcc. Please change the environment variable
83 *** and run configure again.])
86 # Check for additional parameters
90 [ --with-gnu-ld arrange to work with GNU ld.],
91 gnu_ld_flag="$with_gnu_ld",
96 [ --with-ld arrange to use the specified ld (full pathname).],
97 DEFAULT_LINKER="$with_ld")
98 if test x"${DEFAULT_LINKER+set}" = x"set"; then
99 if test ! -x "$DEFAULT_LINKER"; then
100 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
101 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
104 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
105 [Define to enable the use of a default linker.])
110 [ --with-gnu-as arrange to work with GNU as.],
111 gas_flag="$with_gnu_as",
115 [ --with-as arrange to use the specified as (full pathname).],
116 DEFAULT_ASSEMBLER="$with_as")
117 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
118 if test ! -x "$DEFAULT_ASSEMBLER"; then
119 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
120 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
123 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
124 [Define to enable the use of a default assembler.])
129 [ --with-stabs arrange to use stabs instead of host debug format.],
135 [ --with-elf arrange to use ELF instead of host debug format.],
139 # Specify the local prefix
141 AC_ARG_WITH(local-prefix,
142 [ --with-local-prefix=DIR specifies directory to put local include.],
143 [case "${withval}" in
144 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
146 *) local_prefix=$with_local_prefix ;;
149 # Default local prefix if it is empty
150 if test x$local_prefix = x; then
151 local_prefix=/usr/local
154 # Build a new-libstdc++ system (ie libstdc++-v3)
155 AC_MSG_CHECKING([for libstdc++ to install])
156 AC_ARG_ENABLE(libstdcxx-v3,
157 [ --enable-libstdcxx-v3
158 enable libstdc++-v3 for building and installation],
159 [enable_libstdcxx_v3="$enableval"], [enable_libstdcxx_v3=yes])
161 if test x$enable_libstdcxx_v3 = xyes; then
171 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
172 # passed in by the toplevel make and thus we'd get different behavior
173 # depending on where we built the sources.
175 # Specify the g++ header file directory
176 AC_ARG_WITH(gxx-include-dir,
177 [ --with-gxx-include-dir=DIR
178 specifies directory to put g++ header files.],
179 [case "${withval}" in
180 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
182 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
185 if test x${gcc_gxx_include_dir} = x; then
186 if test x${enable_version_specific_runtime_libs} = xyes; then
187 gcc_gxx_include_dir='${libsubdir}/include/g++'
189 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
190 changequote(<<, >>)dnl
191 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${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 # Do we have a single-tree copy of texinfo?
450 if test -f $srcdir/../texinfo/Makefile.in; then
451 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
452 gcc_cv_prog_makeinfo_modern=yes
453 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
455 # See if makeinfo has been installed and is modern enough
456 # that we can use it.
457 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
458 [GNU texinfo.* \([0-9][0-9.]*\)],
459 [3.1[2-9] | 3.[2-9][0-9] | 4.* | 1.6[89] | 1.7[0-9]])
462 if test $gcc_cv_prog_makeinfo_modern = no; then
464 *** Makeinfo is missing or too old.
465 *** Info documentation will not be built.])
468 BUILD_INFO=info AC_SUBST(BUILD_INFO)
472 dnl Don't use AC_PROG_LEX; we insist on flex.
473 dnl LEXLIB is not useful in gcc.
474 if test -f $srcdir/../flex/skel.c; then
475 FLEX='$(objdir)/../flex/flex'
477 AC_CHECK_PROG(FLEX, flex, flex, false)
481 # The -L switch is so bison can find its skeleton file.
482 if test -f $srcdir/../bison/bison.simple; then
483 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
485 AC_CHECK_PROG(BISON, bison, bison, false)
488 # See if the stage1 system preprocessor understands the ANSI C
489 # preprocessor stringification operator.
492 # Use <inttypes.h> only if it exists,
493 # doesn't clash with <sys/types.h>, and declares intmax_t.
494 AC_MSG_CHECKING(for inttypes.h)
495 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
497 [#include <sys/types.h>
498 #include <inttypes.h>],
500 [gcc_cv_header_inttypes_h=yes],
501 gcc_cv_header_inttypes_h=no)])
502 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
503 if test $gcc_cv_header_inttypes_h = yes; then
504 AC_DEFINE(HAVE_INTTYPES_H, 1,
505 [Define if you have a working <inttypes.h> header file.])
509 # Determine if enumerated bitfields are unsigned. ISO C says they can
510 # be either signed or unsigned.
512 AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
513 [AC_TRY_RUN(#include <stdlib.h>
514 enum t { BLAH = 128 } ;
515 struct s_t { enum t member : 8; } s ;
519 if (s.member < 0) exit(1);
522 }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
523 if test $gcc_cv_enum_bf_unsigned = yes; then
524 AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
525 [Define if enumerated bitfields are treated as unsigned values.])
528 AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy \
529 strchr strrchr kill getrlimit setrlimit atoll atoq \
530 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
531 fputs_unlocked getrusage valloc iconv nl_langinfo)
533 AC_CHECK_TYPE(ssize_t, int)
535 # Try to determine the array type of the second argument of getgroups
536 # for the target system (int or gid_t).
538 if test "${target}" = "${build}"; then
539 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
542 # This condition may need some tweaking. It should include all
543 # targets where the array type of the second argument of getgroups
544 # is int and the type of gid_t is not equivalent to int.
545 *-*-sunos* | *-*-ultrix*)
546 TARGET_GETGROUPS_T=int
549 TARGET_GETGROUPS_T=gid_t
553 AC_SUBST(TARGET_GETGROUPS_T)
555 gcc_AC_FUNC_VFPRINTF_DOPRNT
556 gcc_AC_FUNC_PRINTF_PTR
560 # Under some versions of uwin, vfork is notoriously buggy and the test
561 # can hang configure; on other versions, vfork exists just as a stub.
562 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
563 ac_cv_func_vfork_works=no
567 AC_FUNC_MMAP_ANYWHERE
570 # We will need to find libiberty.h and ansidecl.h
571 saved_CFLAGS="$CFLAGS"
572 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
573 gcc_AC_CHECK_DECLS(bcopy \
574 getenv atol sbrk abort atof getcwd getwd \
575 strsignal putc_unlocked fputs_unlocked strstr environ \
576 malloc realloc calloc free basename getopt, , ,[
577 #include "gansidecl.h"
578 #include "system.h"])
580 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
581 #include "gansidecl.h"
583 #ifdef HAVE_SYS_RESOURCE_H
584 #include <sys/resource.h>
588 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
589 CFLAGS="$saved_CFLAGS"
591 # mkdir takes a single argument on some systems.
592 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
602 build_install_headers_dir=install-headers-tar
607 host_truncate_target=
610 # Decode the host machine, then the target machine.
611 # For the host machine, we save the xm_file variable as host_xm_file;
612 # then we decode the target machine and forget everything else
613 # that came from the host machine.
614 for machine in $build $host $target; do
615 . ${srcdir}/config.gcc
618 extra_objs="${host_extra_objs} ${extra_objs}"
620 # Default the target-machine variables that were not explicitly set.
621 if test x"$tm_file" = x
622 then tm_file=$cpu_type/$cpu_type.h; fi
624 if test x"$extra_headers" = x
625 then extra_headers=; fi
627 if test x"$xm_file" = x
628 then xm_file=$cpu_type/xm-$cpu_type.h; fi
630 if test x$md_file = x
631 then md_file=$cpu_type/$cpu_type.md; fi
633 if test x$out_file = x
634 then out_file=$cpu_type/$cpu_type.c; fi
636 if test x"$tmake_file" = x
637 then tmake_file=$cpu_type/t-$cpu_type
640 if test x"$dwarf2" = xyes
641 then tm_file="$tm_file tm-dwarf2.h"
644 if test x$float_format = x
645 then float_format=i64
648 if test $float_format = none
649 then float_h_file=Makefile.in
650 else float_h_file=float-$float_format.h
653 # Handle cpp installation.
654 if test x$enable_cpp != xno
656 tmake_file="$tmake_file t-install-cpp"
659 # Say what files are being used for the output code and MD file.
660 echo "Using \`$srcdir/config/$out_file' to output insns."
661 echo "Using \`$srcdir/config/$md_file' as machine description file."
664 for f in $tm_file; do
667 if test $count = ax; then
668 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
670 echo "Using the following target machine macro files:"
671 for f in $tm_file; do
672 echo " $srcdir/config/$f"
677 for f in $host_xm_file; do
680 if test $count = ax; then
681 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
683 echo "Using the following host machine macro files:"
684 for f in $host_xm_file; do
685 echo " $srcdir/config/$f"
689 if test "$host_xm_file" != "$build_xm_file"; then
691 for f in $build_xm_file; do
694 if test $count = ax; then
695 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
697 echo "Using the following build machine macro files:"
698 for f in $build_xm_file; do
699 echo " $srcdir/config/$f"
704 if test x$thread_file = x; then
705 if test x$target_thread_file != x; then
706 thread_file=$target_thread_file
712 # Set up the header files.
713 # $links is the list of header files to create.
714 # $vars is the list of shell variables with file names to include.
715 # auto-host.h is the file containing items generated by autoconf and is
716 # the first file included by config.h.
718 host_xm_file="auto-host.h gansidecl.h ${host_xm_file} hwint.h"
720 # If host=build, it is correct to have hconfig include auto-host.h
721 # as well. If host!=build, we are in error and need to do more
722 # work to find out the build config parameters.
723 if test x$host = x$build
725 build_xm_file="auto-host.h gansidecl.h ${build_xm_file} hwint.h"
727 # We create a subdir, then run autoconf in the subdir.
728 # To prevent recursion we set host and build for the new
729 # invocation of configure to the build for this invocation
736 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
737 *) realsrcdir=../${srcdir};;
739 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
740 --target=$target --host=$build --build=$build
742 # We just finished tests for the build machine, so rename
743 # the file auto-build.h in the gcc directory.
744 mv auto-host.h ../auto-build.h
747 build_xm_file="auto-build.h gansidecl.h ${build_xm_file} hwint.h"
750 xm_file="gansidecl.h ${xm_file}"
751 tm_file="gansidecl.h ${tm_file}"
753 vars="host_xm_file tm_file tm_p_file xm_file build_xm_file"
754 links="config.h tm.h tm_p.h tconfig.h hconfig.h"
755 defines="host_xm_defines null_defines null_defines xm_defines build_xm_defines"
758 if test -f config.status; then mv -f config.status config.bak; fi
761 while test -n "$vars"
763 set $vars; var=$1; shift; vars=$*
764 set $links; link=$1; shift; links=$*
765 set $defines; define=$1; shift; defines=$*
768 # Make sure the file is created, even if it is empty.
771 # Define TARGET_CPU_DEFAULT if the system wants one.
772 # This substitutes for lots of *.h files.
773 if test "$target_cpu_default" != "" -a $link = tm.h
775 echo "#define TARGET_CPU_DEFAULT ($target_cpu_default)" >>$link
779 echo "#ifndef GENERATOR_FILE" >>$link
780 echo "#include \"insn-codes.h\"" >>$link
781 echo "#endif" >>$link
784 for file in `eval echo '$'$var`; do
786 auto-host.h | auto-build.h )
789 echo '#ifdef IN_GCC' >>$link
792 echo "#include \"$file\"" >>$link
794 auto-host.h | auto-build.h )
797 echo '#endif' >>$link
802 for def in `eval echo '$'$define`; do
803 echo "#ifndef $def" >>$link
804 echo "#define $def" >>$link
805 echo "#endif" >>$link
809 # Truncate the target if necessary
810 if test x$host_truncate_target != x; then
811 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
814 # Get the version trigger filename from the toplevel
815 if test "${with_gcc_version_trigger+set}" = set; then
816 gcc_version_trigger=$with_gcc_version_trigger
818 gcc_version_trigger=${srcdir}/version.c
821 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
822 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
824 # Compile in configure arguments.
825 if test -f configargs.h ; then
826 # Being re-configured.
827 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
828 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
830 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
832 cat > configargs.h <<EOF
833 /* Generated automatically. */
834 static const char configuration_arguments[] = "$gcc_config_arguments";
838 # Internationalization
840 VERSION="$gcc_version"
841 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
842 [Define to the name of the distribution.])
843 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
844 [Define to the version of the distribution.])
850 # Enable NLS support by default
852 [ --enable-nls use Native Language Support (default)],
855 # if cross compiling, disable NLS support.
856 # It's not worth the trouble, at least for now.
858 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
859 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
863 # if NLS is enabled, also enable check in po subdir
864 if test $enable_nls = yes; then
873 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
875 # Windows32 Registry support for specifying GCC installation paths.
876 AC_ARG_ENABLE(win32-registry,
877 [ --disable-win32-registry
878 Disable lookup of installation paths in the
879 Registry on Windows hosts.
880 --enable-win32-registry Enable registry lookup (default).
881 --enable-win32-registry=KEY
882 Use KEY instead of GCC version as the last portion
883 of the registry key.],,)
885 AC_MSG_CHECKING(whether windows registry support is requested)
886 if test x$enable_win32_registry != xno; then
887 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
888 [Define to 1 if installation paths should be looked up in Windows32
889 Registry. Ignored on non windows32 hosts.])
895 # Check if user specified a different registry key.
896 case x${enable_win32_registry} in
899 gcc_cv_win32_registry_key="$VERSION"
902 # no registry lookup.
903 gcc_cv_win32_registry_key=''
906 # user-specified key.
907 gcc_cv_win32_registry_key="$enable_win32_registry"
911 if test x$enable_win32_registry != xno; then
912 AC_MSG_CHECKING(registry key on windows hosts)
913 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
914 [Define to be the last portion of registry key on windows hosts.])
915 AC_MSG_RESULT($gcc_cv_win32_registry_key)
918 # Get an absolute path to the GCC top-level source directory
924 # Conditionalize the makefile for this host machine.
925 # Make-host contains the concatenation of all host makefile fragments
926 # [there can be more than one]. This file is built by configure.frag.
927 host_overrides=Make-host
929 for f in .. ${host_xmake_file}
931 if test -f ${srcdir}/config/$f
933 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
937 # Conditionalize the makefile for this target machine.
938 # Make-target contains the concatenation of all host makefile fragments
939 # [there can be more than one]. This file is built by configure.frag.
940 target_overrides=Make-target
942 for f in .. ${tmake_file}
944 if test -f ${srcdir}/config/$f
946 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
950 # If the host doesn't support symlinks, modify CC in
951 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
952 # Otherwise, we can use "CC=$(CC)".
954 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
956 cc_set_by_configure="\$(CC)"
957 quoted_cc_set_by_configure="\$(CC)"
958 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
961 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
963 symbolic_link="cp -p"
967 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
968 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
969 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
973 out_object_file=`basename $out_file .c`.o
976 for f in $tm_file; do
979 tm_file_list="${tm_file_list} $f" ;;
980 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
985 for f in $host_xm_file; do
987 auto-host.h | gansidecl.h | hwint.h )
988 host_xm_file_list="${host_xm_file_list} $f" ;;
989 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
994 for f in $build_xm_file; do
996 auto-build.h | auto-host.h | gansidecl.h | hwint.h )
997 build_xm_file_list="${build_xm_file_list} $f" ;;
998 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1002 # Define macro CROSS_COMPILE in compilation
1003 # if this is a cross-compiler.
1004 # Also use all.cross instead of all.internal
1005 # and add cross-make to Makefile.
1006 cross_overrides="/dev/null"
1007 if test x$host != x$target
1009 cross_defines="CROSS=-DCROSS_COMPILE"
1010 cross_overrides="${topdir}/cross-make"
1013 # If this is a cross-compiler that does not
1014 # have its own set of headers then define
1017 # If this is using newlib, then define inhibit_libc in
1018 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1019 # libgcc.a, but that's OK because newlib should have its own version of
1022 if [test x$host != x$target] && [test x$with_headers = x]; then
1023 inhibit_libc=-Dinhibit_libc
1025 if [test x$with_newlib = xyes]; then
1026 inhibit_libc=-Dinhibit_libc
1029 AC_SUBST(inhibit_libc)
1031 # When building gcc with a cross-compiler, we need to fix a few things.
1032 # This must come after cross-make as we want all.build to override
1034 build_overrides="/dev/null"
1035 if test x$build != x$host
1037 build_overrides="${topdir}/build-make"
1040 # Expand extra_headers to include complete path.
1041 # This substitutes for lots of t-* files.
1043 if test "x$extra_headers" = x
1046 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1047 for file in $extra_headers;
1049 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1053 if test x$use_collect2 = xno; then
1057 # Add a definition of USE_COLLECT2 if system wants one.
1058 # Also tell toplev.c what to do.
1059 # This substitutes for lots of t-* files.
1060 if test x$use_collect2 = x
1065 will_use_collect2="collect2"
1066 maybe_use_collect2="-DUSE_COLLECT2"
1069 # If we have gas in the build tree, make a link to it.
1070 if test -f ../gas/Makefile; then
1071 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1074 # If we have nm in the build tree, make a link to it.
1075 if test -f ../binutils/Makefile; then
1076 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1079 # If we have ld in the build tree, make a link to it.
1080 if test -f ../ld/Makefile; then
1081 # if test x$use_collect2 = x; then
1082 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1084 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1088 # Figure out what assembler we will be using.
1089 AC_MSG_CHECKING(what assembler to use)
1091 gcc_cv_gas_major_version=
1092 gcc_cv_gas_minor_version=
1093 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1094 if test -x "$DEFAULT_ASSEMBLER"; then
1095 gcc_cv_as="$DEFAULT_ASSEMBLER"
1096 elif test -x "$AS"; then
1098 elif test -x as$host_exeext; then
1099 # Build using assembler in the current directory.
1100 gcc_cv_as=./as$host_exeext
1101 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1102 # Single tree build which includes gas.
1103 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1106 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1108 if test x$gcc_cv_gas_version != x; then
1113 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1114 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1118 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1120 # Search the same directories that the installed compiler will
1121 # search. Else we may find the wrong assembler and lose. If we
1122 # do not find a suitable assembler binary, then try the user's
1125 # Also note we have to check MD_EXEC_PREFIX before checking the
1126 # user's path. Unfortunately, there is no good way to get at the
1127 # value of MD_EXEC_PREFIX here. So we do a brute force search
1128 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1129 # to be fixed as part of the make/configure rewrite too.
1131 if test "x$exec_prefix" = xNONE; then
1132 if test "x$prefix" = xNONE; then
1133 test_prefix=/usr/local
1138 test_prefix=$exec_prefix
1141 # If the loop below does not find an assembler, then use whatever
1142 # one we can find in the users's path.
1146 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1147 $test_prefix/lib/gcc-lib/$target \
1148 /usr/lib/gcc/$target/$gcc_version \
1149 /usr/lib/gcc/$target \
1150 $test_prefix/$target/bin/$target/$gcc_version \
1151 $test_prefix/$target/bin \
1156 /bsd43/usr/lib/cmplrs/cc \
1157 /usr/cross64/usr/bin \
1158 /usr/lib/cmplrs/cc \
1159 /sysv/usr/lib/cmplrs/cc \
1160 /svr4/usr/lib/cmplrs/cc \
1163 for dir in $test_dirs; do
1164 if test -f $dir/as$host_exeext; then
1165 gcc_cv_as=$dir/as$host_exeext
1170 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1171 AC_MSG_RESULT("newly built gas")
1173 AC_MSG_RESULT($gcc_cv_as)
1176 # Figure out what nm we will be using.
1177 AC_MSG_CHECKING(what nm to use)
1178 if test -x nm$host_exeext; then
1179 gcc_cv_nm=./nm$host_exeext
1180 elif test x$host = x$target; then
1182 gcc_cv_nm=nm$host_exeext
1184 AC_MSG_RESULT($gcc_cv_nm)
1186 # Figure out what assembler alignment features are present.
1187 AC_MSG_CHECKING(assembler alignment features)
1188 gcc_cv_as_alignment_features=none
1189 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1190 # Gas version 2.6 and later support for .balign and .p2align.
1191 # bytes to skip when using .p2align.
1192 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1193 gcc_cv_as_alignment_features=".balign and .p2align"
1194 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1196 # Gas version 2.8 and later support specifying the maximum
1197 # bytes to skip when using .p2align.
1198 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1199 gcc_cv_as_alignment_features=".p2align including maximum skip"
1200 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1202 elif test x$gcc_cv_as != x; then
1203 # Check if we have .balign and .p2align
1204 echo ".balign 4" > conftest.s
1205 echo ".p2align 2" >> conftest.s
1206 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1207 gcc_cv_as_alignment_features=".balign and .p2align"
1208 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1210 rm -f conftest.s conftest.o
1211 # Check if specifying the maximum bytes to skip when
1212 # using .p2align is supported.
1213 echo ".p2align 4,,7" > conftest.s
1214 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1215 gcc_cv_as_alignment_features=".p2align including maximum skip"
1216 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1218 rm -f conftest.s conftest.o
1220 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1222 AC_MSG_CHECKING(assembler subsection support)
1223 gcc_cv_as_subsections=no
1224 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1225 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1226 gcc_cv_as_subsections="working .subsection -1"
1228 elif test x$gcc_cv_as != x; then
1229 # Check if we have .subsection
1230 echo ".subsection 1" > conftest.s
1231 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1232 gcc_cv_as_subsections=".subsection"
1233 if test x$gcc_cv_nm != x; then
1234 cat > conftest.s <<EOF
1235 conftest_label1: .word 0
1237 conftest_label2: .word 0
1240 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1241 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1242 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1243 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1246 gcc_cv_as_subsections="working .subsection -1"
1251 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1253 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1254 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1255 [Define if your assembler supports .subsection and .subsection -1 starts
1256 emitting at the beginning of your section.])
1258 AC_MSG_RESULT($gcc_cv_as_subsections)
1260 AC_MSG_CHECKING(assembler weak support)
1262 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1263 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1264 gcc_cv_as_weak="yes"
1266 elif test x$gcc_cv_as != x; then
1267 # Check if we have .weak
1268 echo " .weak foobar" > conftest.s
1269 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1270 gcc_cv_as_weak="yes"
1272 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1274 if test x"$gcc_cv_as_weak" = xyes; then
1275 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1277 AC_MSG_RESULT($gcc_cv_as_weak)
1279 AC_MSG_CHECKING(assembler hidden support)
1281 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1282 if test "$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
1283 gcc_cv_as_hidden="yes"
1285 elif test x$gcc_cv_as != x; then
1286 # Check if we have .hidden
1287 echo " .hidden foobar" > conftest.s
1288 echo "foobar:" >> conftest.s
1289 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1290 gcc_cv_as_hidden="yes"
1292 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1294 if test x"$gcc_cv_as_hidden" = xyes; then
1295 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1296 [Define if your assembler supports .hidden.])
1298 AC_MSG_RESULT($gcc_cv_as_hidden)
1302 AC_CACHE_CHECK([assembler .register pseudo-op support],
1303 gcc_cv_as_register_pseudo_op, [
1304 gcc_cv_as_register_pseudo_op=unknown
1305 if test x$gcc_cv_as != x; then
1306 # Check if we have .register
1307 echo ".register %g2, #scratch" > conftest.s
1308 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1309 gcc_cv_as_register_pseudo_op=yes
1311 gcc_cv_as_register_pseudo_op=no
1313 rm -f conftest.s conftest.o
1316 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1317 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1318 [Define if your assembler supports .register.])
1321 AC_CACHE_CHECK([assembler supports -relax],
1322 gcc_cv_as_relax_opt, [
1323 gcc_cv_as_relax_opt=unknown
1324 if test x$gcc_cv_as != x; then
1325 # Check if gas supports -relax
1326 echo ".text" > conftest.s
1327 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1328 gcc_cv_as_relax_opt=yes
1330 gcc_cv_as_relax_opt=no
1332 rm -f conftest.s conftest.o
1335 if test "x$gcc_cv_as_relax_opt" = xyes; then
1336 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1337 [Define if your assembler supports -relax option.])
1342 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1343 gcc_cv_as_flags64, [
1344 if test -n "$gcc_cv_as"; then
1345 echo ".xword foo" > conftest.s
1346 gcc_cv_as_flags64=no
1347 for flag in "-xarch=v9" "-64 -Av9"; do
1348 if $gcc_cv_as $flag -o conftest.o conftest.s \
1349 > /dev/null 2>&1; then
1350 gcc_cv_as_flags64=$flag
1354 rm -f conftest.s conftest.o
1356 if test "$gas" = yes; then
1357 gcc_cv_as_flags64="-64 -Av9"
1359 gcc_cv_as_flags64="-xarch=v9"
1363 if test "x$gcc_cv_as_flags64" = xno; then
1365 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1366 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1369 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1370 [Define if the assembler supports 64bit sparc.])
1373 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1377 if test "x$gcc_cv_as_flags64" != xno; then
1378 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1379 gcc_cv_as_offsetable_lo10, [
1380 gcc_cv_as_offsetable_lo10=unknown
1381 if test "x$gcc_cv_as" != x; then
1382 # Check if assembler has offsetable %lo()
1383 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1384 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1385 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1387 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1388 > /dev/null 2>&1; then
1389 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1390 gcc_cv_as_offsetable_lo10=no
1392 gcc_cv_as_offsetable_lo10=yes
1395 gcc_cv_as_offsetable_lo10=no
1397 rm -f conftest.s conftest.o conftest1.s conftest1.o
1400 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1401 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1402 [Define if your assembler supports offsetable %lo().])
1410 AC_MSG_CHECKING(assembler instructions)
1411 gcc_cv_as_instructions=
1412 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1413 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1414 gcc_cv_as_instructions="filds fists"
1416 elif test x$gcc_cv_as != x; then
1417 set "filds fists" "filds mem; fists mem"
1420 echo "$2" > conftest.s
1421 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1422 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1426 rm -f conftest.s conftest.o
1428 if test x"$gcc_cv_as_instructions" != x; then
1429 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1431 AC_MSG_RESULT($gcc_cv_as_instructions)
1435 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1436 gcc_cv_as_dwarf2_debug_line=no
1437 # ??? Not all targets support dwarf2 debug_line, even within a version
1438 # of gas. Moreover, we need to emit a valid instruction to trigger any
1439 # info to the output file. So, as supported targets are added to gas 2.11,
1440 # add some instruction here to (also) show we expect this might work.
1441 # ??? Once 2.11 is released, probably need to add first known working
1442 # version to the per-target configury.
1444 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-*)
1451 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1453 if test "$gcc_cv_gas_major_version" -eq 2 \
1454 -a "$gcc_cv_gas_minor_version" -ge 11 \
1455 -o "$gcc_cv_gas_major_version" -gt 2 \
1456 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1457 && test x"$insn" != x ; then
1458 gcc_cv_as_dwarf2_debug_line="yes"
1460 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1461 echo ' .file 0 "conftest.s"' > conftest.s
1462 echo ' .loc 0 3 0' >> conftest.s
1463 echo " $insn" >> conftest.s
1464 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1465 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1466 gcc_cv_as_dwarf2_debug_line="yes"
1468 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1470 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1471 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1472 [Define if your assembler supports dwarf2 .file/.loc directives.])
1474 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1476 # Figure out what language subdirectories are present.
1477 # Look if the user specified --enable-languages="..."; if not, use
1478 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1480 if test x"${enable_languages+set}" != xset; then
1481 if test x"${LANGUAGES+set}" = xset; then
1482 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1484 enable_languages=all
1487 if test x"${enable_languages}" = x; then
1488 AC_MSG_ERROR([--enable-languages needs at least one argument])
1492 for lang in ${srcdir}/*/config-lang.in ..
1496 # The odd quoting in the next line works around
1497 # an apparent bug in bash 1.12 on linux.
1499 ${srcdir}/[*]/config-lang.in) ;;
1501 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1502 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1503 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1504 if test "x$lang_alias" = x
1506 echo "$lang doesn't set \$language." 1>&2
1509 case ${build_by_default},${enable_languages}, in
1510 *,$lang_alias,*) add_this_lang=yes ;;
1511 no,*) add_this_lang=no ;;
1512 *,all,*) add_this_lang=yes ;;
1513 *) add_this_lang=no ;;
1515 if test x"${add_this_lang}" = xyes; then
1517 ${srcdir}/ada/config-lang.in)
1518 if test x$gnat = xyes ; then
1519 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1523 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1532 # Make gthr-default.h if we have a thread file.
1534 if test $thread_file != single; then
1535 rm -f gthr-default.h
1536 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1537 gthread_flags=-DHAVE_GTHR_DEFAULT
1539 AC_SUBST(gthread_flags)
1541 # Find out what GC implementation we want, or may, use.
1543 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1544 with the compiler.],
1550 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1553 [if test $ac_cv_func_mmap_anywhere = yes \
1554 || test $ac_cv_func_valloc = yes; then
1560 echo "Using $GGC for garbage collection."
1562 # Use the system's zlib library.
1564 zlibinc="-I\$(srcdir)/../zlib"
1565 AC_ARG_WITH(system-zlib,
1566 [ --with-system-zlib use installed libz],
1573 # Build a new-abi (c++) system
1574 AC_ARG_ENABLE(new-gxx-abi,
1575 [ --enable-new-gxx-abi
1576 select the new abi for g++. You must select an ABI
1577 at configuration time, so that the correct runtime
1578 support is built. You cannot mix ABIs.],
1580 enable_new_gxx_abi=yes)
1582 if test x$enable_new_gxx_abi = xyes; then
1583 AC_DEFINE(ENABLE_NEW_GXX_ABI, 1,
1584 [Define if you want to always select the new-abi for g++.])
1585 GXX_ABI_FLAG='-fnew-abi'
1589 AC_SUBST(GXX_ABI_FLAG)
1591 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, $ac_esn,
1592 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1593 AC_SUBST(HAVE_LIBSTDCXX_V3)
1595 dnl Very limited version of automake's enable-maintainer-mode
1597 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1598 dnl maintainer-mode is disabled by default
1599 AC_ARG_ENABLE(maintainer-mode,
1600 [ --enable-maintainer-mode enable make rules and dependencies not useful
1601 (and sometimes confusing) to the casual installer],
1602 maintainer_mode=$enableval,
1605 AC_MSG_RESULT($maintainer_mode)
1607 if test "$maintainer_mode" = "yes"; then
1614 # Make empty files to contain the specs and options for each language.
1615 # Then add #include lines to for a compiler that has specs and/or options.
1620 rm -f specs.h options.h gencheck.h
1621 touch specs.h options.h gencheck.h
1622 for subdir in . $subdirs
1624 if test -f $srcdir/$subdir/lang-specs.h; then
1625 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1626 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1628 if test -f $srcdir/$subdir/lang-options.h; then
1629 echo "#include \"$subdir/lang-options.h\"" >>options.h
1630 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1632 if test -f $srcdir/$subdir/$subdir-tree.def; then
1633 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1634 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1638 # These (without "all_") are set in each config-lang.in.
1639 # `language' must be a single word so is spelled singularly.
1645 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1646 # List of language makefile fragments.
1651 # Add the language fragments.
1652 # Languages are added via two mechanisms. Some information must be
1653 # recorded in makefile variables, these are defined in config-lang.in.
1654 # We accumulate them and plug them into the main Makefile.
1655 # The other mechanism is a set of hooks for each of the main targets
1656 # like `clean', `install', etc.
1658 language_fragments="Make-lang"
1659 language_hooks="Make-hooks"
1661 for s in .. $subdirs
1673 . ${srcdir}/$s/config-lang.in
1674 if test "x$language" = x
1676 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1679 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1680 if test -f ${srcdir}/$s/Makefile.in
1681 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1683 all_languages="$all_languages $language"
1684 if test "x$boot_language" = xyes
1686 all_boot_languages="$all_boot_languages $language"
1688 all_compilers="$all_compilers $compilers"
1689 all_stagestuff="$all_stagestuff $stagestuff"
1690 all_diff_excludes="$all_diff_excludes $diff_excludes"
1691 all_headers="$all_headers $headers"
1692 all_outputs="$all_outputs $outputs"
1693 all_lib2funcs="$all_lib2funcs $lib2funcs"
1697 # Since we can't use `::' targets, we link each language in
1698 # with a set of hooks, reached indirectly via lang.${target}.
1702 target_list="all.build all.cross start.encap rest.encap \
1704 install-normal install-common install-info install-man \
1706 mostlyclean clean distclean extraclean maintainer-clean \
1707 stage1 stage2 stage3 stage4"
1708 for t in $target_list
1711 for lang in .. $all_languages
1713 if test $lang != ".."; then
1717 echo "lang.$t: $x" >> Make-hooks
1720 # If we're not building in srcdir, create .gdbinit.
1722 if test ! -f Makefile.in; then
1723 echo "dir ." > .gdbinit
1724 echo "dir ${srcdir}" >> .gdbinit
1725 if test x$gdb_needs_out_file_path = xyes
1727 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1729 if test "x$subdirs" != x; then
1732 echo "dir ${srcdir}/$s" >> .gdbinit
1735 echo "source ${srcdir}/.gdbinit" >> .gdbinit
1738 # Define variables host_canonical and build_canonical
1739 # because some Cygnus local changes in the Makefile depend on them.
1740 build_canonical=${build}
1741 host_canonical=${host}
1743 if test "${host}" != "${target}" ; then
1744 target_subdir=${target}/
1746 AC_SUBST(build_canonical)
1747 AC_SUBST(host_canonical)
1748 AC_SUBST(target_subdir)
1750 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1751 # absolute path for gcc_tooldir based on inserting the number of up-directory
1752 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1753 # $(libsubdir)/@(unlibsubdir) based path.
1754 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1755 # make and thus we'd get different behavior depending on where we built the
1757 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1758 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1760 changequote(<<, >>)dnl
1761 # An explanation of the sed strings:
1762 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1763 # -e 's|/$||' match a trailing forward slash and eliminates it
1764 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1765 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1767 # (*) Note this pattern overwrites the first character of the string
1768 # with a forward slash if one is not already present. This is not a
1769 # problem because the exact names of the sub-directories concerned is
1770 # unimportant, just the number of them matters.
1772 # The practical upshot of these patterns is like this:
1774 # prefix exec_prefix result
1775 # ------ ----------- ------
1777 # /foo/ /foo/bar ../
1778 # /foo /foo/bar/ ../
1779 # /foo/ /foo/bar/ ../
1780 # /foo /foo/bar/ugg ../../
1783 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1784 changequote([, ])dnl
1786 AC_SUBST(gcc_tooldir)
1789 # Nothing to do for FLOAT_H, float_format already handled.
1793 # Process the language and host/target makefile fragments.
1794 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1796 # Substitute configuration variables
1798 AC_SUBST(all_boot_languages)
1799 AC_SUBST(all_compilers)
1800 AC_SUBST(all_diff_excludes)
1801 AC_SUBST(all_headers)
1802 AC_SUBST(all_lang_makefiles)
1803 AC_SUBST(all_languages)
1804 AC_SUBST(all_lib2funcs)
1805 AC_SUBST(all_stagestuff)
1806 AC_SUBST(build_exeext)
1807 AC_SUBST(build_install_headers_dir)
1808 AC_SUBST(build_xm_file_list)
1809 AC_SUBST(cc_set_by_configure)
1810 AC_SUBST(quoted_cc_set_by_configure)
1811 AC_SUBST(cpp_install_dir)
1812 AC_SUBST(dep_host_xmake_file)
1813 AC_SUBST(dep_tmake_file)
1814 AC_SUBST(extra_c_flags)
1815 AC_SUBST(extra_headers_list)
1816 AC_SUBST(extra_objs)
1817 AC_SUBST(extra_parts)
1818 AC_SUBST(extra_passes)
1819 AC_SUBST(extra_programs)
1820 AC_SUBST(float_h_file)
1821 AC_SUBST(gcc_config_arguments)
1822 AC_SUBST(gcc_gxx_include_dir)
1823 AC_SUBST(libstdcxx_incdir)
1824 AC_SUBST(gcc_version)
1825 AC_SUBST(gcc_version_full)
1826 AC_SUBST(gcc_version_trigger)
1827 AC_SUBST(host_exeext)
1828 AC_SUBST(host_extra_gcc_objs)
1829 AC_SUBST(host_xm_file_list)
1831 AC_SUBST(lang_options_files)
1832 AC_SUBST(lang_specs_files)
1833 AC_SUBST(lang_tree_files)
1834 AC_SUBST(local_prefix)
1835 AC_SUBST(maybe_use_collect2)
1837 AC_SUBST(objc_boehm_gc)
1839 AC_SUBST(out_object_file)
1840 AC_SUBST(stage_prefix_set_by_configure)
1841 AC_SUBST(symbolic_link)
1842 AC_SUBST(thread_file)
1843 AC_SUBST(tm_file_list)
1844 AC_SUBST(will_use_collect2)
1845 AC_SUBST(c_target_objs)
1846 AC_SUBST(cxx_target_objs)
1849 AC_SUBST_FILE(target_overrides)
1850 AC_SUBST_FILE(host_overrides)
1851 AC_SUBST(cross_defines)
1852 AC_SUBST_FILE(cross_overrides)
1853 AC_SUBST_FILE(build_overrides)
1854 AC_SUBST_FILE(language_fragments)
1855 AC_SUBST_FILE(language_hooks)
1857 # Echo that links are built
1858 if test x$host = x$target
1866 if test x$host != x$build
1868 str3=" on a $build system"
1871 if test "x$str2" != x || test "x$str3" != x
1876 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1878 if test "x$str2" != x || test "x$str3" != x
1880 echo " ${str2}${str3}." 1>&2
1883 # Truncate the target if necessary
1884 if test x$host_truncate_target != x; then
1885 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1888 # Configure the subdirectories
1889 # AC_CONFIG_SUBDIRS($subdirs)
1891 # Create the Makefile
1892 # and configure language subdirectories
1893 AC_OUTPUT($all_outputs,
1895 case x$CONFIG_HEADERS in
1896 xauto-host.h:config.in)
1899 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1900 # bootstrapping and the installation procedure can still use
1901 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
1902 # FLAGS_TO_PASS has been modified to solve the problem there.
1903 # This is virtually a duplicate of what happens in configure.lang; we do
1904 # an extra check to make sure this only happens if ln -s can be used.
1905 if test "$symbolic_link" = "ln -s"; then
1906 for d in .. ${subdirs} ; do
1907 if test $d != ..; then
1910 for t in stage1 stage2 stage3 stage4 include
1913 $symbolic_link ../$t $t 2>/dev/null
1919 # Avoid having to add intl to our include paths.
1920 if test -f intl/libintl.h; then
1921 echo creating libintl.h
1922 echo '#include "intl/libintl.h"' >libintl.h
1929 target_alias='${target_alias}'
1931 subdirs='${subdirs}'
1932 symbolic_link='${symbolic_link}'
1933 program_transform_set='${program_transform_set}'
1934 program_transform_name='${program_transform_name}'
1935 dep_host_xmake_file='${dep_host_xmake_file}'
1936 host_xmake_file='${host_xmake_file}'
1937 dep_tmake_file='${dep_tmake_file}'
1938 tmake_file='${tmake_file}'
1939 thread_file='${thread_file}'
1940 gcc_config_arguments='${gcc_config_arguments}'
1941 gcc_version='${gcc_version}'
1942 gcc_version_full='${gcc_version_full}'
1943 gcc_version_trigger='${gcc_version_trigger}'
1944 local_prefix='${local_prefix}'
1945 build_install_headers_dir='${build_install_headers_dir}'
1946 build_exeext='${build_exeext}'
1947 host_exeext='${host_exeext}'
1948 out_file='${out_file}'
1949 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
1950 SET_MAKE='${SET_MAKE}'
1951 target_list='${target_list}'
1952 target_overrides='${target_overrides}'
1953 host_overrides='${host_overrides}'
1954 cross_defines='${cross_defines}'
1955 cross_overrides='${cross_overrides}'
1956 build_overrides='${build_overrides}'
1957 cpp_install_dir='${cpp_install_dir}'