1 # configure.in for GNU CC
2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
6 #This file is part of GNU CC.
8 #GNU CC is free software; you can redistribute it and/or modify
9 #it under the terms of the GNU General Public License as published by
10 #the Free Software Foundation; either version 2, or (at your option)
13 #GNU CC is distributed in the hope that it will be useful,
14 #but WITHOUT ANY WARRANTY; without even the implied warranty of
15 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 #GNU General Public License for more details.
18 #You should have received a copy of the GNU General Public License
19 #along with GNU CC; see the file COPYING. If not, write to
20 #the Free Software Foundation, 59 Temple Place - Suite 330,
21 #Boston, MA 02111-1307, USA.
23 # Initialization and defaults
26 AC_CONFIG_HEADER(auto-host.h:config.in)
33 # Check for bogus environment variables.
34 # Test if LIBRARY_PATH contains the notation for the current directory
35 # since this would lead to problems installing/building glibc.
36 # LIBRARY_PATH contains the current directory if one of the following
38 # - one of the terminals (":" and ";") is the first or last sign
39 # - two terminals occur directly after each other
40 # - the path contains an element with a dot in it
41 AC_MSG_CHECKING(LIBRARY_PATH variable)
43 case ${LIBRARY_PATH} in
44 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
45 library_path_setting="contains current directory"
48 library_path_setting="ok"
52 AC_MSG_RESULT($library_path_setting)
53 if test "$library_path_setting" != "ok"; then
55 *** LIBRARY_PATH shouldn't contain the current directory when
56 *** building gcc. Please change the environment variable
57 *** and run configure again.])
60 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
61 # since this would lead to problems installing/building glibc.
62 # GCC_EXEC_PREFIX contains the current directory if one of the following
64 # - one of the terminals (":" and ";") is the first or last sign
65 # - two terminals occur directly after each other
66 # - the path contains an element with a dot in it
67 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
69 case ${GCC_EXEC_PREFIX} in
70 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
71 gcc_exec_prefix_setting="contains current directory"
74 gcc_exec_prefix_setting="ok"
78 AC_MSG_RESULT($gcc_exec_prefix_setting)
79 if test "$gcc_exec_prefix_setting" != "ok"; then
81 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
82 *** building gcc. Please change the environment variable
83 *** and run configure again.])
86 # Check for additional parameters
90 [ --with-gnu-ld arrange to work with GNU ld.],
91 gnu_ld_flag="$with_gnu_ld",
96 [ --with-ld arrange to use the specified ld (full pathname).],
97 DEFAULT_LINKER="$with_ld")
98 if test x"${DEFAULT_LINKER+set}" = x"set"; then
99 if test ! -x "$DEFAULT_LINKER"; then
100 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
101 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
104 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
105 [Define to enable the use of a default linker.])
110 [ --with-gnu-as arrange to work with GNU as.],
111 gas_flag="$with_gnu_as",
115 [ --with-as arrange to use the specified as (full pathname).],
116 DEFAULT_ASSEMBLER="$with_as")
117 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
118 if test ! -x "$DEFAULT_ASSEMBLER"; then
119 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
120 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
123 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
124 [Define to enable the use of a default assembler.])
129 [ --with-stabs arrange to use stabs instead of host debug format.],
135 [ --with-elf arrange to use ELF instead of host debug format.],
139 # Specify the local prefix
141 AC_ARG_WITH(local-prefix,
142 [ --with-local-prefix=DIR specifies directory to put local include.],
143 [case "${withval}" in
144 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
146 *) local_prefix=$with_local_prefix ;;
149 # Default local prefix if it is empty
150 if test x$local_prefix = x; then
151 local_prefix=/usr/local
154 # Build a new-libstdc++ system (ie libstdc++-v3)
155 AC_MSG_CHECKING([for libstdc++ to install])
156 AC_ARG_ENABLE(libstdcxx-v3,
157 [ --enable-libstdcxx-v3
158 enable libstdc++-v3 for building and installation],
159 [enable_libstdcxx_v3="$enableval"], [enable_libstdcxx_v3=yes])
161 if test x$enable_libstdcxx_v3 = xyes; then
171 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
172 # passed in by the toplevel make and thus we'd get different behavior
173 # depending on where we built the sources.
175 # Specify the g++ header file directory
176 AC_ARG_WITH(gxx-include-dir,
177 [ --with-gxx-include-dir=DIR
178 specifies directory to put g++ header files.],
179 [case "${withval}" in
180 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
182 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
185 if test x${gcc_gxx_include_dir} = x; then
186 if test x${enable_version_specific_runtime_libs} = xyes; then
187 gcc_gxx_include_dir='${libsubdir}/include/g++'
189 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
190 changequote(<<, >>)dnl
191 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/g++"-${libstdcxx_interface}
196 # Enable expensive internal checks
197 AC_ARG_ENABLE(checking,
198 [ --enable-checking[=LIST]
199 enable expensive run-time checks. With LIST,
200 enable only specific categories of checks.
201 Categories are: misc,tree,rtl,gc,gcac; default
207 ac_gc_always_collect=
208 case "${enableval}" in
209 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;;
211 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
212 set fnord $enableval; shift
217 misc) ac_checking=1 ;;
218 tree) ac_tree_checking=1 ;;
219 rtl) ac_rtl_checking=1 ;;
220 gc) ac_gc_checking=1 ;;
221 gcac) ac_gc_always_collect=1 ;;
222 *) AC_MSG_ERROR(unknown check category $check) ;;
228 # Enable some checks by default for development versions of GCC
229 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1;])
230 if test x$ac_checking != x ; then
231 AC_DEFINE(ENABLE_CHECKING, 1,
232 [Define if you want more run-time sanity checks. This one gets a grab
233 bag of miscellaneous but relatively cheap checks.])
235 if test x$ac_tree_checking != x ; then
236 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
237 [Define if you want all operations on trees (the basic data
238 structure of the front ends) to be checked for dynamic type safety
239 at runtime. This is moderately expensive.])
241 if test x$ac_rtl_checking != x ; then
242 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
243 [Define if you want all operations on RTL (the basic data structure
244 of the optimizer and back end) to be checked for dynamic type safety
245 at runtime. This is quite expensive.])
247 if test x$ac_gc_checking != x ; then
248 AC_DEFINE(ENABLE_GC_CHECKING, 1,
249 [Define if you want the garbage collector to do object poisoning and
250 other memory allocation checks. This is quite expensive.])
252 if test x$ac_gc_always_collect != x ; then
253 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
254 [Define if you want the garbage collector to operate in maximally
255 paranoid mode, validating the entire heap and collecting garbage at
256 every opportunity. This is extremely expensive.])
261 [ --disable-cpp don't provide a user-visible C preprocessor.],
262 [], [enable_cpp=yes])
264 AC_ARG_WITH(cpp_install_dir,
265 [ --with-cpp-install-dir=DIR
266 install the user visible C preprocessor in DIR
267 (relative to PREFIX) as well as PREFIX/bin.],
268 [if test x$withval = xyes; then
269 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
270 elif test x$withval != xno; then
271 cpp_install_dir=$withval
274 maybe_cpplib=libcpp.a
275 AC_SUBST(maybe_cpplib)
277 # Enable Multibyte Characters for C/C++
278 AC_ARG_ENABLE(c-mbchar,
279 [ --enable-c-mbchar Enable multibyte characters for C and C++.],
280 if test x$enable_c_mbchar != xno; then
281 AC_DEFINE(MULTIBYTE_CHARS, 1,
282 [Define if you want the C and C++ compilers to support multibyte
283 character sets for source code.])
287 # Pass with no value to take the default
288 # Pass with a value to specify a thread package
289 AC_ARG_ENABLE(threads,
290 [ --enable-threads enable thread usage for target GCC.
291 --enable-threads=LIB use LIB thread package for target GCC.],,
294 enable_threads_flag=$enable_threads
295 # Check if a valid thread package
296 case x${enable_threads_flag} in
299 target_thread_file='single'
303 target_thread_file=''
305 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
306 xsolaris | xwin32 | xdce | xvxworks | xaix)
307 target_thread_file=$enable_threads_flag
310 echo "$enable_threads is an unknown thread package" 1>&2
315 AC_ARG_ENABLE(objc-gc,
316 [ --enable-objc-gc enable the use of Boehm's garbage collector with
317 the GNU Objective-C runtime.],
318 if test x$enable_objc_gc = xno; then
326 [ --with-dwarf2 force the default debug format to be DWARF2.],
327 dwarf2="$with_dwarf2",
330 AC_ARG_ENABLE(shared,
331 [ --disable-shared don't provide a shared libgcc.],
332 [], [enable_shared=yes])
333 AC_SUBST(enable_shared)
335 # Determine the host, build, and target systems
338 # Find the native compiler
341 # autoconf is lame and doesn't give us any substitution variable for this.
342 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
343 NO_MINUS_C_MINUS_O=yes
345 OUTPUT_OPTION='-o $@'
347 AC_SUBST(NO_MINUS_C_MINUS_O)
348 AC_SUBST(OUTPUT_OPTION)
352 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
353 ac_cv_prog_cc_no_long_long,
354 [save_CFLAGS="$CFLAGS"
355 CFLAGS="-Wno-long-long"
356 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
357 ac_cv_prog_cc_no_long_long=no)
358 CFLAGS="$save_CFLAGS"])
360 if test $ac_cv_prog_cc_no_long_long = yes; then
361 strict1_warn="-pedantic -Wno-long-long"
363 AC_SUBST(strict1_warn)
365 # If the native compiler is GCC, we can enable warnings even in stage1.
366 # That's useful for people building cross-compilers, or just running a
369 if test "x$GCC" = "xyes"; then
370 warn_cflags='$(GCC_WARN_CFLAGS)'
372 AC_SUBST(warn_cflags)
374 # Stage specific cflags for build.
380 stage1_cflags="-Wa,-J"
386 AC_SUBST(stage1_cflags)
390 AC_MSG_CHECKING([whether a default assembler was specified])
391 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
392 if test x"$gas_flag" = x"no"; then
393 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
395 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
401 AC_MSG_CHECKING([whether a default linker was specified])
402 if test x"${DEFAULT_LINKER+set}" = x"set"; then
403 if test x"$gnu_ld_flag" = x"no"; then
404 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
406 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
412 AC_MSG_CHECKING(for GNU C library)
413 AC_CACHE_VAL(gcc_cv_glibc,
415 [#include <features.h>],[
416 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
417 #error Not a GNU C library system
421 AC_MSG_RESULT($gcc_cv_glibc)
422 if test $gcc_cv_glibc = yes; then
423 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
428 # Find some useful tools
440 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
441 fcntl.h unistd.h stab.h sys/file.h sys/time.h \
442 sys/resource.h sys/param.h sys/times.h sys/stat.h \
443 direct.h malloc.h langinfo.h iconv.h)
445 # Check for thread headers.
446 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
447 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
449 # See if GNAT has been installed
450 AC_CHECK_PROG(gnat, gnatbind, 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.* \([0-9][0-9.]*\)],
462 [3.1[2-9] | 3.[2-9][0-9] | 4.* | 1.6[89] | 1.7[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 or installed.])
472 BUILD_INFO=info AC_SUBST(BUILD_INFO)
473 INSTALL_INFO=install-info AC_SUBST(INSTALL_INFO)
477 dnl Don't use AC_PROG_LEX; we insist on flex.
478 dnl LEXLIB is not useful in gcc.
479 if test -f $srcdir/../flex/skel.c; then
480 FLEX='$(objdir)/../flex/flex'
482 AC_CHECK_PROG(FLEX, flex, flex, false)
486 # The -L switch is so bison can find its skeleton file.
487 if test -f $srcdir/../bison/bison.simple; then
488 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
490 AC_CHECK_PROG(BISON, bison, bison, false)
493 # See if the stage1 system preprocessor understands the ANSI C
494 # preprocessor stringification operator.
497 # Use <inttypes.h> only if it exists,
498 # doesn't clash with <sys/types.h>, and declares intmax_t.
499 AC_MSG_CHECKING(for inttypes.h)
500 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
502 [#include <sys/types.h>
503 #include <inttypes.h>],
505 [gcc_cv_header_inttypes_h=yes],
506 gcc_cv_header_inttypes_h=no)])
507 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
508 if test $gcc_cv_header_inttypes_h = yes; then
509 AC_DEFINE(HAVE_INTTYPES_H, 1,
510 [Define if you have a working <inttypes.h> header file.])
514 # Determine if enumerated bitfields are unsigned. ISO C says they can
515 # be either signed or unsigned.
517 AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
518 [AC_TRY_RUN(#include <stdlib.h>
519 enum t { BLAH = 128 } ;
520 struct s_t { enum t member : 8; } s ;
524 if (s.member < 0) exit(1);
527 }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
528 if test $gcc_cv_enum_bf_unsigned = yes; then
529 AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
530 [Define if enumerated bitfields are treated as unsigned values.])
533 AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy \
534 strchr strrchr kill getrlimit setrlimit atoll atoq \
535 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
536 fputs_unlocked getrusage valloc iconv nl_langinfo)
538 AC_CHECK_TYPE(ssize_t, int)
540 # Try to determine the array type of the second argument of getgroups
541 # for the target system (int or gid_t).
543 if test "${target}" = "${build}"; then
544 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
547 # This condition may need some tweaking. It should include all
548 # targets where the array type of the second argument of getgroups
549 # is int and the type of gid_t is not equivalent to int.
550 *-*-sunos* | *-*-ultrix*)
551 TARGET_GETGROUPS_T=int
554 TARGET_GETGROUPS_T=gid_t
558 AC_SUBST(TARGET_GETGROUPS_T)
560 gcc_AC_FUNC_VFPRINTF_DOPRNT
561 gcc_AC_FUNC_PRINTF_PTR
565 # Under some versions of uwin, vfork is notoriously buggy and the test
566 # can hang configure; on other versions, vfork exists just as a stub.
567 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
568 ac_cv_func_vfork_works=no
572 AC_FUNC_MMAP_ANYWHERE
575 # We will need to find libiberty.h and ansidecl.h
576 saved_CFLAGS="$CFLAGS"
577 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
578 gcc_AC_CHECK_DECLS(bcopy \
579 getenv atol sbrk abort atof getcwd getwd \
580 strsignal putc_unlocked fputs_unlocked strstr environ \
581 malloc realloc calloc free basename getopt, , ,[
582 #include "gansidecl.h"
583 #include "system.h"])
585 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
586 #include "gansidecl.h"
588 #ifdef HAVE_SYS_RESOURCE_H
589 #include <sys/resource.h>
593 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
594 CFLAGS="$saved_CFLAGS"
596 # mkdir takes a single argument on some systems.
597 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
607 build_install_headers_dir=install-headers-tar
612 host_truncate_target=
615 # Decode the host machine, then the target machine.
616 # For the host machine, we save the xm_file variable as host_xm_file;
617 # then we decode the target machine and forget everything else
618 # that came from the host machine.
619 for machine in $build $host $target; do
620 . ${srcdir}/config.gcc
623 extra_objs="${host_extra_objs} ${extra_objs}"
625 # Default the target-machine variables that were not explicitly set.
626 if test x"$tm_file" = x
627 then tm_file=$cpu_type/$cpu_type.h; fi
629 if test x$extra_headers = x
630 then extra_headers=; fi
632 if test x"$xm_file" = x
633 then xm_file=$cpu_type/xm-$cpu_type.h; fi
635 if test x$md_file = x
636 then md_file=$cpu_type/$cpu_type.md; fi
638 if test x$out_file = x
639 then out_file=$cpu_type/$cpu_type.c; fi
641 if test x"$tmake_file" = x
642 then tmake_file=$cpu_type/t-$cpu_type
645 if test x"$dwarf2" = xyes
646 then tm_file="$tm_file tm-dwarf2.h"
649 if test x$float_format = x
650 then float_format=i64
653 if test $float_format = none
654 then float_h_file=Makefile.in
655 else float_h_file=float-$float_format.h
658 # Handle cpp installation.
659 if test x$enable_cpp != xno
661 tmake_file="$tmake_file t-install-cpp"
664 # Say what files are being used for the output code and MD file.
665 echo "Using \`$srcdir/config/$out_file' to output insns."
666 echo "Using \`$srcdir/config/$md_file' as machine description file."
669 for f in $tm_file; do
672 if test $count = ax; then
673 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
675 echo "Using the following target machine macro files:"
676 for f in $tm_file; do
677 echo " $srcdir/config/$f"
682 for f in $host_xm_file; do
685 if test $count = ax; then
686 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
688 echo "Using the following host machine macro files:"
689 for f in $host_xm_file; do
690 echo " $srcdir/config/$f"
694 if test "$host_xm_file" != "$build_xm_file"; then
696 for f in $build_xm_file; do
699 if test $count = ax; then
700 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
702 echo "Using the following build machine macro files:"
703 for f in $build_xm_file; do
704 echo " $srcdir/config/$f"
709 if test x$thread_file = x; then
710 if test x$target_thread_file != x; then
711 thread_file=$target_thread_file
717 # Set up the header files.
718 # $links is the list of header files to create.
719 # $vars is the list of shell variables with file names to include.
720 # auto-host.h is the file containing items generated by autoconf and is
721 # the first file included by config.h.
723 host_xm_file="auto-host.h gansidecl.h ${host_xm_file} hwint.h"
725 # If host=build, it is correct to have hconfig include auto-host.h
726 # as well. If host!=build, we are in error and need to do more
727 # work to find out the build config parameters.
728 if test x$host = x$build
730 build_xm_file="auto-host.h gansidecl.h ${build_xm_file} hwint.h"
732 # We create a subdir, then run autoconf in the subdir.
733 # To prevent recursion we set host and build for the new
734 # invocation of configure to the build for this invocation
741 /*) realsrcdir=${srcdir};;
742 *) realsrcdir=../${srcdir};;
744 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
745 --target=$target --host=$build --build=$build
747 # We just finished tests for the build machine, so rename
748 # the file auto-build.h in the gcc directory.
749 mv auto-host.h ../auto-build.h
752 build_xm_file="auto-build.h gansidecl.h ${build_xm_file} hwint.h"
755 xm_file="gansidecl.h ${xm_file}"
756 tm_file="gansidecl.h ${tm_file}"
758 vars="host_xm_file tm_file tm_p_file xm_file build_xm_file"
759 links="config.h tm.h tm_p.h tconfig.h hconfig.h"
760 defines="host_xm_defines null_defines null_defines xm_defines build_xm_defines"
763 if test -f config.status; then mv -f config.status config.bak; fi
766 while test -n "$vars"
768 set $vars; var=$1; shift; vars=$*
769 set $links; link=$1; shift; links=$*
770 set $defines; define=$1; shift; defines=$*
773 # Make sure the file is created, even if it is empty.
776 # Define TARGET_CPU_DEFAULT if the system wants one.
777 # This substitutes for lots of *.h files.
778 if test "$target_cpu_default" != "" -a $link = tm.h
780 echo "#define TARGET_CPU_DEFAULT ($target_cpu_default)" >>$link
784 echo "#ifndef GENERATOR_FILE" >>$link
785 echo "#include \"insn-codes.h\"" >>$link
786 echo "#endif" >>$link
789 for file in `eval echo '$'$var`; do
791 auto-host.h | auto-build.h )
794 echo '#ifdef IN_GCC' >>$link
797 echo "#include \"$file\"" >>$link
799 auto-host.h | auto-build.h )
802 echo '#endif' >>$link
807 for def in `eval echo '$'$define`; do
808 echo "#ifndef $def" >>$link
809 echo "#define $def" >>$link
810 echo "#endif" >>$link
814 # Truncate the target if necessary
815 if test x$host_truncate_target != x; then
816 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
819 # Get the version trigger filename from the toplevel
820 if test "${with_gcc_version_trigger+set}" = set; then
821 gcc_version_trigger=$with_gcc_version_trigger
823 gcc_version_trigger=${srcdir}/version.c
826 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
827 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
829 # Compile in configure arguments.
830 if test -f configargs.h ; then
831 # Being re-configured.
832 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
833 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
835 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
837 cat > configargs.h <<EOF
838 /* Generated automatically. */
839 static const char configuration_arguments[] = "$gcc_config_arguments";
843 # Internationalization
845 VERSION="$gcc_version"
846 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
847 [Define to the name of the distribution.])
848 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
849 [Define to the version of the distribution.])
855 # Enable NLS support by default
857 [ --enable-nls use Native Language Support (default)],
860 # if cross compiling, disable NLS support.
861 # It's not worth the trouble, at least for now.
863 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
864 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
868 # if NLS is enabled, also enable check in po subdir
869 if test $enable_nls = yes; then
878 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
880 # Windows32 Registry support for specifying GCC installation paths.
881 AC_ARG_ENABLE(win32-registry,
882 [ --disable-win32-registry
883 Disable lookup of installation paths in the
884 Registry on Windows hosts.
885 --enable-win32-registry Enable registry lookup (default).
886 --enable-win32-registry=KEY
887 Use KEY instead of GCC version as the last portion
888 of the registry key.],,)
890 AC_MSG_CHECKING(whether windows registry support is requested)
891 if test x$enable_win32_registry != xno; then
892 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
893 [Define to 1 if installation paths should be looked up in Windows32
894 Registry. Ignored on non windows32 hosts.])
900 # Check if user specified a different registry key.
901 case x${enable_win32_registry} in
904 gcc_cv_win32_registry_key="$VERSION"
907 # no registry lookup.
908 gcc_cv_win32_registry_key=''
911 # user-specified key.
912 gcc_cv_win32_registry_key="$enable_win32_registry"
916 if test x$enable_win32_registry != xno; then
917 AC_MSG_CHECKING(registry key on windows hosts)
918 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
919 [Define to be the last portion of registry key on windows hosts.])
920 AC_MSG_RESULT($gcc_cv_win32_registry_key)
923 # Get an absolute path to the GCC top-level source directory
929 # Conditionalize the makefile for this host machine.
930 # Make-host contains the concatenation of all host makefile fragments
931 # [there can be more than one]. This file is built by configure.frag.
932 host_overrides=Make-host
934 for f in .. ${host_xmake_file}
936 if test -f ${srcdir}/config/$f
938 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
942 # Conditionalize the makefile for this target machine.
943 # Make-target contains the concatenation of all host makefile fragments
944 # [there can be more than one]. This file is built by configure.frag.
945 target_overrides=Make-target
947 for f in .. ${tmake_file}
949 if test -f ${srcdir}/config/$f
951 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
955 # If the host doesn't support symlinks, modify CC in
956 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
957 # Otherwise, we can use "CC=$(CC)".
959 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
961 cc_set_by_configure="\$(CC)"
962 quoted_cc_set_by_configure="\$(CC)"
963 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
966 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
968 symbolic_link="cp -p"
972 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
973 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
974 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
978 out_object_file=`basename $out_file .c`.o
981 for f in $tm_file; do
984 tm_file_list="${tm_file_list} $f" ;;
985 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
990 for f in $host_xm_file; do
992 auto-host.h | gansidecl.h | hwint.h )
993 host_xm_file_list="${host_xm_file_list} $f" ;;
994 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
999 for f in $build_xm_file; do
1001 auto-build.h | auto-host.h | gansidecl.h | hwint.h )
1002 build_xm_file_list="${build_xm_file_list} $f" ;;
1003 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1007 # Define macro CROSS_COMPILE in compilation
1008 # if this is a cross-compiler.
1009 # Also use all.cross instead of all.internal
1010 # and add cross-make to Makefile.
1011 cross_overrides="/dev/null"
1012 if test x$host != x$target
1014 cross_defines="CROSS=-DCROSS_COMPILE"
1015 cross_overrides="${topdir}/cross-make"
1018 # If this is a cross-compiler that does not
1019 # have its own set of headers then define
1022 # If this is using newlib, then define inhibit_libc in
1023 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1024 # libgcc.a, but that's OK because newlib should have its own version of
1027 if [test x$host != x$target] && [test x$with_headers = x]; then
1028 inhibit_libc=-Dinhibit_libc
1030 if [test x$with_newlib = xyes]; then
1031 inhibit_libc=-Dinhibit_libc
1034 AC_SUBST(inhibit_libc)
1036 # When building gcc with a cross-compiler, we need to fix a few things.
1037 # This must come after cross-make as we want all.build to override
1039 build_overrides="/dev/null"
1040 if test x$build != x$host
1042 build_overrides="${topdir}/build-make"
1045 # Expand extra_headers to include complete path.
1046 # This substitutes for lots of t-* files.
1048 if test "x$extra_headers" = x
1051 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1052 for file in $extra_headers;
1054 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1058 if test x$use_collect2 = xno; then
1062 # Add a definition of USE_COLLECT2 if system wants one.
1063 # Also tell toplev.c what to do.
1064 # This substitutes for lots of t-* files.
1065 if test x$use_collect2 = x
1070 will_use_collect2="collect2"
1071 maybe_use_collect2="-DUSE_COLLECT2"
1074 # If we have gas in the build tree, make a link to it.
1075 if test -f ../gas/Makefile; then
1076 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1079 # If we have nm in the build tree, make a link to it.
1080 if test -f ../binutils/Makefile; then
1081 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1084 # If we have ld in the build tree, make a link to it.
1085 if test -f ../ld/Makefile; then
1086 # if test x$use_collect2 = x; then
1087 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1089 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1093 # Figure out what assembler we will be using.
1094 AC_MSG_CHECKING(what assembler to use)
1096 gcc_cv_gas_major_version=
1097 gcc_cv_gas_minor_version=
1098 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1099 if test -x "$DEFAULT_ASSEMBLER"; then
1100 gcc_cv_as="$DEFAULT_ASSEMBLER"
1101 elif test -x "$AS"; then
1103 elif test -x as$host_exeext; then
1104 # Build using assembler in the current directory.
1105 gcc_cv_as=./as$host_exeext
1106 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1107 # Single tree build which includes gas.
1108 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1111 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1113 if test x$gcc_cv_gas_version != x; then
1118 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1119 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1123 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1125 # Search the same directories that the installed compiler will
1126 # search. Else we may find the wrong assembler and lose. If we
1127 # do not find a suitable assembler binary, then try the user's
1130 # Also note we have to check MD_EXEC_PREFIX before checking the
1131 # user's path. Unfortunately, there is no good way to get at the
1132 # value of MD_EXEC_PREFIX here. So we do a brute force search
1133 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1134 # to be fixed as part of the make/configure rewrite too.
1136 if test "x$exec_prefix" = xNONE; then
1137 if test "x$prefix" = xNONE; then
1138 test_prefix=/usr/local
1143 test_prefix=$exec_prefix
1146 # If the loop below does not find an assembler, then use whatever
1147 # one we can find in the users's path.
1151 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1152 $test_prefix/lib/gcc-lib/$target \
1153 /usr/lib/gcc/$target/$gcc_version \
1154 /usr/lib/gcc/$target \
1155 $test_prefix/$target/bin/$target/$gcc_version \
1156 $test_prefix/$target/bin \
1161 /bsd43/usr/lib/cmplrs/cc \
1162 /usr/cross64/usr/bin \
1163 /usr/lib/cmplrs/cc \
1164 /sysv/usr/lib/cmplrs/cc \
1165 /svr4/usr/lib/cmplrs/cc \
1168 for dir in $test_dirs; do
1169 if test -f $dir/as$host_exeext; then
1170 gcc_cv_as=$dir/as$host_exeext
1175 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1176 AC_MSG_RESULT("newly built gas")
1178 AC_MSG_RESULT($gcc_cv_as)
1181 # Figure out what nm we will be using.
1182 AC_MSG_CHECKING(what nm to use)
1183 if test -x nm$host_exeext; then
1184 gcc_cv_nm=./nm$host_exeext
1185 elif test x$host = x$target; then
1187 gcc_cv_nm=nm$host_exeext
1189 AC_MSG_RESULT($gcc_cv_nm)
1191 # Figure out what assembler alignment features are present.
1192 AC_MSG_CHECKING(assembler alignment features)
1193 gcc_cv_as_alignment_features=none
1194 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1195 # Gas version 2.6 and later support for .balign and .p2align.
1196 # bytes to skip when using .p2align.
1197 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1198 gcc_cv_as_alignment_features=".balign and .p2align"
1199 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1201 # Gas version 2.8 and later support specifying the maximum
1202 # bytes to skip when using .p2align.
1203 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1204 gcc_cv_as_alignment_features=".p2align including maximum skip"
1205 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1207 elif test x$gcc_cv_as != x; then
1208 # Check if we have .balign and .p2align
1209 echo ".balign 4" > conftest.s
1210 echo ".p2align 2" >> conftest.s
1211 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1212 gcc_cv_as_alignment_features=".balign and .p2align"
1213 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1215 rm -f conftest.s conftest.o
1216 # Check if specifying the maximum bytes to skip when
1217 # using .p2align is supported.
1218 echo ".p2align 4,,7" > conftest.s
1219 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1220 gcc_cv_as_alignment_features=".p2align including maximum skip"
1221 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1223 rm -f conftest.s conftest.o
1225 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1227 AC_MSG_CHECKING(assembler subsection support)
1228 gcc_cv_as_subsections=no
1229 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1230 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1231 gcc_cv_as_subsections="working .subsection -1"
1233 elif test x$gcc_cv_as != x; then
1234 # Check if we have .subsection
1235 echo ".subsection 1" > conftest.s
1236 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1237 gcc_cv_as_subsections=".subsection"
1238 if test x$gcc_cv_nm != x; then
1239 cat > conftest.s <<EOF
1240 conftest_label1: .word 0
1242 conftest_label2: .word 0
1245 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1246 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1247 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1248 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1251 gcc_cv_as_subsections="working .subsection -1"
1256 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1258 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1259 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1260 [Define if your assembler supports .subsection and .subsection -1 starts
1261 emitting at the beginning of your section.])
1263 AC_MSG_RESULT($gcc_cv_as_subsections)
1265 AC_MSG_CHECKING(assembler weak support)
1267 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1268 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1269 gcc_cv_as_weak="yes"
1271 elif test x$gcc_cv_as != x; then
1272 # Check if we have .weak
1273 echo " .weak foobar" > conftest.s
1274 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1275 gcc_cv_as_weak="yes"
1277 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1279 if test x"$gcc_cv_as_weak" = xyes; then
1280 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1282 AC_MSG_RESULT($gcc_cv_as_weak)
1284 AC_MSG_CHECKING(assembler hidden support)
1286 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1287 if test "$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
1288 gcc_cv_as_hidden="yes"
1290 elif test x$gcc_cv_as != x; then
1291 # Check if we have .hidden
1292 echo " .hidden foobar" > conftest.s
1293 echo "foobar:" >> conftest.s
1294 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1295 gcc_cv_as_hidden="yes"
1297 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1299 if test x"$gcc_cv_as_hidden" = xyes; then
1300 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1301 [Define if your assembler supports .hidden.])
1303 AC_MSG_RESULT($gcc_cv_as_hidden)
1307 AC_CACHE_CHECK([assembler .register pseudo-op support],
1308 gcc_cv_as_register_pseudo_op, [
1309 gcc_cv_as_register_pseudo_op=unknown
1310 if test x$gcc_cv_as != x; then
1311 # Check if we have .register
1312 echo ".register %g2, #scratch" > conftest.s
1313 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1314 gcc_cv_as_register_pseudo_op=yes
1316 gcc_cv_as_register_pseudo_op=no
1318 rm -f conftest.s conftest.o
1321 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1322 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1323 [Define if your assembler supports .register.])
1326 AC_CACHE_CHECK([assembler supports -relax],
1327 gcc_cv_as_relax_opt, [
1328 gcc_cv_as_relax_opt=unknown
1329 if test x$gcc_cv_as != x; then
1330 # Check if gas supports -relax
1331 echo ".text" > conftest.s
1332 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1333 gcc_cv_as_relax_opt=yes
1335 gcc_cv_as_relax_opt=no
1337 rm -f conftest.s conftest.o
1340 if test "x$gcc_cv_as_relax_opt" = xyes; then
1341 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1342 [Define if your assembler supports -relax option.])
1347 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1348 gcc_cv_as_flags64, [
1349 if test -n "$gcc_cv_as"; then
1350 echo ".xword foo" > conftest.s
1351 gcc_cv_as_flags64=no
1352 for flag in "-xarch=v9" "-64 -Av9"; do
1353 if $gcc_cv_as $flag -o conftest.o conftest.s \
1354 > /dev/null 2>&1; then
1355 gcc_cv_as_flags64=$flag
1359 rm -f conftest.s conftest.o
1361 if test "$gas" = yes; then
1362 gcc_cv_as_flags64="-64 -Av9"
1364 gcc_cv_as_flags64="-xarch=v9"
1368 if test "x$gcc_cv_as_flags64" = xno; then
1370 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1371 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1374 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1375 [Define if the assembler supports 64bit sparc.])
1378 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1382 if test "x$gcc_cv_as_flags64" != xno; then
1383 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1384 gcc_cv_as_offsetable_lo10, [
1385 gcc_cv_as_offsetable_lo10=unknown
1386 if test "x$gcc_cv_as" != x; then
1387 # Check if assembler has offsetable %lo()
1388 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1389 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1390 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1392 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1393 > /dev/null 2>&1; then
1394 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1395 gcc_cv_as_offsetable_lo10=no
1397 gcc_cv_as_offsetable_lo10=yes
1400 gcc_cv_as_offsetable_lo10=no
1402 rm -f conftest.s conftest.o conftest1.s conftest1.o
1405 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1406 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1407 [Define if your assembler supports offsetable %lo().])
1415 AC_MSG_CHECKING(assembler instructions)
1416 gcc_cv_as_instructions=
1417 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1418 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1419 gcc_cv_as_instructions="filds fists"
1421 elif test x$gcc_cv_as != x; then
1422 set "filds fists" "filds mem; fists mem"
1425 echo "$2" > conftest.s
1426 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1427 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1431 rm -f conftest.s conftest.o
1433 if test x"$gcc_cv_as_instructions" != x; then
1434 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1436 AC_MSG_RESULT($gcc_cv_as_instructions)
1440 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1441 gcc_cv_as_dwarf2_debug_line=no
1442 # ??? Not all targets support dwarf2 debug_line, even within a version
1443 # of gas. Moreover, we need to emit a valid instruction to trigger any
1444 # info to the output file. So, as supported targets are added to gas 2.11,
1445 # add some instruction here to (also) show we expect this might work.
1446 # ??? Once 2.11 is released, probably need to add first known working
1447 # version to the per-target configury.
1449 i?86*-*-* | mips*-*-* | alpha*-*-* | sparc*-*-*)
1456 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1458 if test "$gcc_cv_gas_major_version" -eq 2 \
1459 -a "$gcc_cv_gas_minor_version" -ge 11 \
1460 -o "$gcc_cv_gas_major_version" -gt 2 \
1461 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1462 && test x"$insn" != x ; then
1463 gcc_cv_as_dwarf2_debug_line="yes"
1465 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1466 echo ' .file 0 "conftest.s"' > conftest.s
1467 echo ' .loc 0 3 0' >> conftest.s
1468 echo " $insn" >> conftest.s
1469 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1470 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1471 gcc_cv_as_dwarf2_debug_line="yes"
1473 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1475 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1476 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1477 [Define if your assembler supports dwarf2 .file/.loc directives.])
1479 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1481 # Figure out what language subdirectories are present.
1482 # Look if the user specified --enable-languages="..."; if not, use
1483 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1485 if test x"${enable_languages+set}" != xset; then
1486 if test x"${LANGUAGES+set}" = xset; then
1487 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1489 enable_languages=all
1492 if test x"${enable_languages}" = x; then
1493 AC_MSG_ERROR([--enable-languages needs at least one argument])
1497 for lang in ${srcdir}/*/config-lang.in ..
1501 # The odd quoting in the next line works around
1502 # an apparent bug in bash 1.12 on linux.
1504 ${srcdir}/[*]/config-lang.in) ;;
1506 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1507 if test "x$lang_alias" = x
1509 echo "$lang doesn't set \$language." 1>&2
1512 if test x"${enable_languages}" = xall && test x"${lang_alias}" != xCHILL; then
1515 case "${enable_languages}" in
1516 ${lang_alias} | "${lang_alias},"* | *",${lang_alias},"* | *",${lang_alias}" )
1524 if test x"${add_this_lang}" = xyes; then
1526 ${srcdir}/ada/config-lang.in)
1527 if test x$gnat = xyes ; then
1528 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1532 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1541 # Make gthr-default.h if we have a thread file.
1543 if test $thread_file != single; then
1544 rm -f gthr-default.h
1545 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1546 gthread_flags=-DHAVE_GTHR_DEFAULT
1548 AC_SUBST(gthread_flags)
1550 # Find out what GC implementation we want, or may, use.
1552 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1553 with the compiler.],
1559 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1562 [if test $ac_cv_func_mmap_anywhere = yes \
1563 || test $ac_cv_func_valloc = yes; then
1569 echo "Using $GGC for garbage collection."
1571 # Use the system's zlib library.
1573 zlibinc="-I\$(srcdir)/../zlib"
1574 AC_ARG_WITH(system-zlib,
1575 [ --with-system-zlib use installed libz],
1582 # Build a new-abi (c++) system
1583 AC_ARG_ENABLE(new-gxx-abi,
1584 [ --enable-new-gxx-abi
1585 select the new abi for g++. You must select an ABI
1586 at configuration time, so that the correct runtime
1587 support is built. You cannot mix ABIs.],
1589 enable_new_gxx_abi=yes)
1591 if test x$enable_new_gxx_abi = xyes; then
1592 AC_DEFINE(ENABLE_NEW_GXX_ABI, 1,
1593 [Define if you want to always select the new-abi for g++.])
1594 GXX_ABI_FLAG='-fnew-abi'
1598 AC_SUBST(GXX_ABI_FLAG)
1600 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, $ac_esn,
1601 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1602 AC_SUBST(HAVE_LIBSTDCXX_V3)
1604 dnl Very limited version of automake's enable-maintainer-mode
1606 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1607 dnl maintainer-mode is disabled by default
1608 AC_ARG_ENABLE(maintainer-mode,
1609 [ --enable-maintainer-mode enable make rules and dependencies not useful
1610 (and sometimes confusing) to the casual installer],
1611 maintainer_mode=$enableval,
1614 AC_MSG_RESULT($maintainer_mode)
1616 if test "$maintainer_mode" = "yes"; then
1623 # Make empty files to contain the specs and options for each language.
1624 # Then add #include lines to for a compiler that has specs and/or options.
1629 rm -f specs.h options.h gencheck.h
1630 touch specs.h options.h gencheck.h
1631 for subdir in . $subdirs
1633 if test -f $srcdir/$subdir/lang-specs.h; then
1634 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1635 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1637 if test -f $srcdir/$subdir/lang-options.h; then
1638 echo "#include \"$subdir/lang-options.h\"" >>options.h
1639 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1641 if test -f $srcdir/$subdir/$subdir-tree.def; then
1642 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1643 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1647 # These (without "all_") are set in each config-lang.in.
1648 # `language' must be a single word so is spelled singularly.
1654 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1655 # List of language makefile fragments.
1660 # Add the language fragments.
1661 # Languages are added via two mechanisms. Some information must be
1662 # recorded in makefile variables, these are defined in config-lang.in.
1663 # We accumulate them and plug them into the main Makefile.
1664 # The other mechanism is a set of hooks for each of the main targets
1665 # like `clean', `install', etc.
1667 language_fragments="Make-lang"
1668 language_hooks="Make-hooks"
1670 for s in .. $subdirs
1682 . ${srcdir}/$s/config-lang.in
1683 if test "x$language" = x
1685 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1688 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1689 if test -f ${srcdir}/$s/Makefile.in
1690 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1692 all_languages="$all_languages $language"
1693 if test "x$boot_language" = xyes
1695 all_boot_languages="$all_boot_languages $language"
1697 all_compilers="$all_compilers $compilers"
1698 all_stagestuff="$all_stagestuff $stagestuff"
1699 all_diff_excludes="$all_diff_excludes $diff_excludes"
1700 all_headers="$all_headers $headers"
1701 all_outputs="$all_outputs $outputs"
1702 all_lib2funcs="$all_lib2funcs $lib2funcs"
1706 # Since we can't use `::' targets, we link each language in
1707 # with a set of hooks, reached indirectly via lang.${target}.
1711 target_list="all.build all.cross start.encap rest.encap \
1713 install-normal install-common install-info install-man \
1715 mostlyclean clean distclean extraclean maintainer-clean \
1716 stage1 stage2 stage3 stage4"
1717 for t in $target_list
1720 for lang in .. $all_languages
1722 if test $lang != ".."; then
1726 echo "lang.$t: $x" >> Make-hooks
1729 # If we're not building in srcdir, create .gdbinit.
1731 if test ! -f Makefile.in; then
1732 echo "dir ." > .gdbinit
1733 echo "dir ${srcdir}" >> .gdbinit
1734 if test x$gdb_needs_out_file_path = xyes
1736 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1738 if test "x$subdirs" != x; then
1741 echo "dir ${srcdir}/$s" >> .gdbinit
1744 echo "source ${srcdir}/.gdbinit" >> .gdbinit
1747 # Define variables host_canonical and build_canonical
1748 # because some Cygnus local changes in the Makefile depend on them.
1749 build_canonical=${build}
1750 host_canonical=${host}
1752 if test "${host}" != "${target}" ; then
1753 target_subdir=${target}/
1755 AC_SUBST(build_canonical)
1756 AC_SUBST(host_canonical)
1757 AC_SUBST(target_subdir)
1759 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1760 # absolute path for gcc_tooldir based on inserting the number of up-directory
1761 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1762 # $(libsubdir)/@(unlibsubdir) based path.
1763 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1764 # make and thus we'd get different behavior depending on where we built the
1766 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1767 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1769 changequote(<<, >>)dnl
1770 # An explanation of the sed strings:
1771 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1772 # -e 's|/$||' match a trailing forward slash and eliminates it
1773 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1774 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1776 # (*) Note this pattern overwrites the first character of the string
1777 # with a forward slash if one is not already present. This is not a
1778 # problem because the exact names of the sub-directories concerned is
1779 # unimportant, just the number of them matters.
1781 # The practical upshot of these patterns is like this:
1783 # prefix exec_prefix result
1784 # ------ ----------- ------
1786 # /foo/ /foo/bar ../
1787 # /foo /foo/bar/ ../
1788 # /foo/ /foo/bar/ ../
1789 # /foo /foo/bar/ugg ../../
1792 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1793 changequote([, ])dnl
1795 AC_SUBST(gcc_tooldir)
1798 # Nothing to do for FLOAT_H, float_format already handled.
1802 # Process the language and host/target makefile fragments.
1803 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1805 # Substitute configuration variables
1807 AC_SUBST(all_boot_languages)
1808 AC_SUBST(all_compilers)
1809 AC_SUBST(all_diff_excludes)
1810 AC_SUBST(all_headers)
1811 AC_SUBST(all_lang_makefiles)
1812 AC_SUBST(all_languages)
1813 AC_SUBST(all_lib2funcs)
1814 AC_SUBST(all_stagestuff)
1815 AC_SUBST(build_exeext)
1816 AC_SUBST(build_install_headers_dir)
1817 AC_SUBST(build_xm_file_list)
1818 AC_SUBST(cc_set_by_configure)
1819 AC_SUBST(quoted_cc_set_by_configure)
1820 AC_SUBST(cpp_install_dir)
1821 AC_SUBST(dep_host_xmake_file)
1822 AC_SUBST(dep_tmake_file)
1823 AC_SUBST(extra_c_flags)
1824 AC_SUBST(extra_headers_list)
1825 AC_SUBST(extra_objs)
1826 AC_SUBST(extra_parts)
1827 AC_SUBST(extra_passes)
1828 AC_SUBST(extra_programs)
1829 AC_SUBST(float_h_file)
1830 AC_SUBST(gcc_config_arguments)
1831 AC_SUBST(gcc_gxx_include_dir)
1832 AC_SUBST(gcc_version)
1833 AC_SUBST(gcc_version_full)
1834 AC_SUBST(gcc_version_trigger)
1835 AC_SUBST(host_exeext)
1836 AC_SUBST(host_extra_gcc_objs)
1837 AC_SUBST(host_xm_file_list)
1839 AC_SUBST(lang_options_files)
1840 AC_SUBST(lang_specs_files)
1841 AC_SUBST(lang_tree_files)
1842 AC_SUBST(local_prefix)
1843 AC_SUBST(maybe_use_collect2)
1845 AC_SUBST(objc_boehm_gc)
1847 AC_SUBST(out_object_file)
1848 AC_SUBST(stage_prefix_set_by_configure)
1849 AC_SUBST(symbolic_link)
1850 AC_SUBST(thread_file)
1851 AC_SUBST(tm_file_list)
1852 AC_SUBST(will_use_collect2)
1853 AC_SUBST(c_target_objs)
1854 AC_SUBST(cxx_target_objs)
1857 AC_SUBST_FILE(target_overrides)
1858 AC_SUBST_FILE(host_overrides)
1859 AC_SUBST(cross_defines)
1860 AC_SUBST_FILE(cross_overrides)
1861 AC_SUBST_FILE(build_overrides)
1862 AC_SUBST_FILE(language_fragments)
1863 AC_SUBST_FILE(language_hooks)
1865 # Echo that links are built
1866 if test x$host = x$target
1874 if test x$host != x$build
1876 str3=" on a $build system"
1879 if test "x$str2" != x || test "x$str3" != x
1884 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1886 if test "x$str2" != x || test "x$str3" != x
1888 echo " ${str2}${str3}." 1>&2
1891 # Truncate the target if necessary
1892 if test x$host_truncate_target != x; then
1893 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1896 # Configure the subdirectories
1897 # AC_CONFIG_SUBDIRS($subdirs)
1899 # Create the Makefile
1900 # and configure language subdirectories
1901 AC_OUTPUT($all_outputs,
1903 case x$CONFIG_HEADERS in
1904 xauto-host.h:config.in)
1907 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1908 # bootstrapping and the installation procedure can still use
1909 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
1910 # FLAGS_TO_PASS has been modified to solve the problem there.
1911 # This is virtually a duplicate of what happens in configure.lang; we do
1912 # an extra check to make sure this only happens if ln -s can be used.
1913 if test "$symbolic_link" = "ln -s"; then
1914 for d in .. ${subdirs} ; do
1915 if test $d != ..; then
1918 for t in stage1 stage2 stage3 stage4 include
1921 $symbolic_link ../$t $t 2>/dev/null
1927 # Avoid having to add intl to our include paths.
1928 if test -f intl/libintl.h; then
1929 echo creating libintl.h
1930 echo '#include "intl/libintl.h"' >libintl.h
1937 target_alias='${target_alias}'
1939 subdirs='${subdirs}'
1940 symbolic_link='${symbolic_link}'
1941 program_transform_set='${program_transform_set}'
1942 program_transform_name='${program_transform_name}'
1943 dep_host_xmake_file='${dep_host_xmake_file}'
1944 host_xmake_file='${host_xmake_file}'
1945 dep_tmake_file='${dep_tmake_file}'
1946 tmake_file='${tmake_file}'
1947 thread_file='${thread_file}'
1948 gcc_config_arguments='${gcc_config_arguments}'
1949 gcc_version='${gcc_version}'
1950 gcc_version_full='${gcc_version_full}'
1951 gcc_version_trigger='${gcc_version_trigger}'
1952 local_prefix='${local_prefix}'
1953 build_install_headers_dir='${build_install_headers_dir}'
1954 build_exeext='${build_exeext}'
1955 host_exeext='${host_exeext}'
1956 out_file='${out_file}'
1957 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
1958 SET_MAKE='${SET_MAKE}'
1959 target_list='${target_list}'
1960 target_overrides='${target_overrides}'
1961 host_overrides='${host_overrides}'
1962 cross_defines='${cross_defines}'
1963 cross_overrides='${cross_overrides}'
1964 build_overrides='${build_overrides}'
1965 cpp_install_dir='${cpp_install_dir}'