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=$withval
274 # Enable Multibyte Characters for C/C++
275 AC_ARG_ENABLE(c-mbchar,
276 [ --enable-c-mbchar Enable multibyte characters for C and C++.],
277 if test x$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 or installed.])
469 BUILD_INFO=info AC_SUBST(BUILD_INFO)
470 INSTALL_INFO=install-info AC_SUBST(INSTALL_INFO)
474 dnl Don't use AC_PROG_LEX; we insist on flex.
475 dnl LEXLIB is not useful in gcc.
476 if test -f $srcdir/../flex/skel.c; then
477 FLEX='$(objdir)/../flex/flex'
479 AC_CHECK_PROG(FLEX, flex, flex, false)
483 # The -L switch is so bison can find its skeleton file.
484 if test -f $srcdir/../bison/bison.simple; then
485 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
487 AC_CHECK_PROG(BISON, bison, bison, false)
490 # See if the stage1 system preprocessor understands the ANSI C
491 # preprocessor stringification operator.
494 # Use <inttypes.h> only if it exists,
495 # doesn't clash with <sys/types.h>, and declares intmax_t.
496 AC_MSG_CHECKING(for inttypes.h)
497 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
499 [#include <sys/types.h>
500 #include <inttypes.h>],
502 [gcc_cv_header_inttypes_h=yes],
503 gcc_cv_header_inttypes_h=no)])
504 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
505 if test $gcc_cv_header_inttypes_h = yes; then
506 AC_DEFINE(HAVE_INTTYPES_H, 1,
507 [Define if you have a working <inttypes.h> header file.])
511 # Determine if enumerated bitfields are unsigned. ISO C says they can
512 # be either signed or unsigned.
514 AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
515 [AC_TRY_RUN(#include <stdlib.h>
516 enum t { BLAH = 128 } ;
517 struct s_t { enum t member : 8; } s ;
521 if (s.member < 0) exit(1);
524 }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
525 if test $gcc_cv_enum_bf_unsigned = yes; then
526 AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
527 [Define if enumerated bitfields are treated as unsigned values.])
530 AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy \
531 strchr strrchr kill getrlimit setrlimit atoll atoq \
532 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
533 fputs_unlocked getrusage valloc iconv nl_langinfo)
535 AC_CHECK_TYPE(ssize_t, int)
537 # Try to determine the array type of the second argument of getgroups
538 # for the target system (int or gid_t).
540 if test "${target}" = "${build}"; then
541 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
544 # This condition may need some tweaking. It should include all
545 # targets where the array type of the second argument of getgroups
546 # is int and the type of gid_t is not equivalent to int.
547 *-*-sunos* | *-*-ultrix*)
548 TARGET_GETGROUPS_T=int
551 TARGET_GETGROUPS_T=gid_t
555 AC_SUBST(TARGET_GETGROUPS_T)
557 gcc_AC_FUNC_VFPRINTF_DOPRNT
558 gcc_AC_FUNC_PRINTF_PTR
562 # Under some versions of uwin, vfork is notoriously buggy and the test
563 # can hang configure; on other versions, vfork exists just as a stub.
564 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
565 ac_cv_func_vfork_works=no
569 AC_FUNC_MMAP_ANYWHERE
572 # We will need to find libiberty.h and ansidecl.h
573 saved_CFLAGS="$CFLAGS"
574 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
575 gcc_AC_CHECK_DECLS(bcopy \
576 getenv atol sbrk abort atof getcwd getwd \
577 strsignal putc_unlocked fputs_unlocked strstr environ \
578 malloc realloc calloc free basename getopt, , ,[
579 #include "gansidecl.h"
580 #include "system.h"])
582 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
583 #include "gansidecl.h"
585 #ifdef HAVE_SYS_RESOURCE_H
586 #include <sys/resource.h>
590 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
591 CFLAGS="$saved_CFLAGS"
593 # mkdir takes a single argument on some systems.
594 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
604 build_install_headers_dir=install-headers-tar
609 host_truncate_target=
612 # Decode the host machine, then the target machine.
613 # For the host machine, we save the xm_file variable as host_xm_file;
614 # then we decode the target machine and forget everything else
615 # that came from the host machine.
616 for machine in $build $host $target; do
617 . ${srcdir}/config.gcc
620 extra_objs="${host_extra_objs} ${extra_objs}"
622 # Default the target-machine variables that were not explicitly set.
623 if test x"$tm_file" = x
624 then tm_file=$cpu_type/$cpu_type.h; fi
626 if test x$extra_headers = x
627 then extra_headers=; fi
629 if test x"$xm_file" = x
630 then xm_file=$cpu_type/xm-$cpu_type.h; fi
632 if test x$md_file = x
633 then md_file=$cpu_type/$cpu_type.md; fi
635 if test x$out_file = x
636 then out_file=$cpu_type/$cpu_type.c; fi
638 if test x"$tmake_file" = x
639 then tmake_file=$cpu_type/t-$cpu_type
642 if test x"$dwarf2" = xyes
643 then tm_file="$tm_file tm-dwarf2.h"
646 if test x$float_format = x
647 then float_format=i64
650 if test $float_format = none
651 then float_h_file=Makefile.in
652 else float_h_file=float-$float_format.h
655 # Handle cpp installation.
656 if test x$enable_cpp != xno
658 tmake_file="$tmake_file t-install-cpp"
661 # Say what files are being used for the output code and MD file.
662 echo "Using \`$srcdir/config/$out_file' to output insns."
663 echo "Using \`$srcdir/config/$md_file' as machine description file."
666 for f in $tm_file; do
669 if test $count = ax; then
670 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
672 echo "Using the following target machine macro files:"
673 for f in $tm_file; do
674 echo " $srcdir/config/$f"
679 for f in $host_xm_file; do
682 if test $count = ax; then
683 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
685 echo "Using the following host machine macro files:"
686 for f in $host_xm_file; do
687 echo " $srcdir/config/$f"
691 if test "$host_xm_file" != "$build_xm_file"; then
693 for f in $build_xm_file; do
696 if test $count = ax; then
697 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
699 echo "Using the following build machine macro files:"
700 for f in $build_xm_file; do
701 echo " $srcdir/config/$f"
706 if test x$thread_file = x; then
707 if test x$target_thread_file != x; then
708 thread_file=$target_thread_file
714 # Set up the header files.
715 # $links is the list of header files to create.
716 # $vars is the list of shell variables with file names to include.
717 # auto-host.h is the file containing items generated by autoconf and is
718 # the first file included by config.h.
720 host_xm_file="auto-host.h gansidecl.h ${host_xm_file} hwint.h"
722 # If host=build, it is correct to have hconfig include auto-host.h
723 # as well. If host!=build, we are in error and need to do more
724 # work to find out the build config parameters.
725 if test x$host = x$build
727 build_xm_file="auto-host.h gansidecl.h ${build_xm_file} hwint.h"
729 # We create a subdir, then run autoconf in the subdir.
730 # To prevent recursion we set host and build for the new
731 # invocation of configure to the build for this invocation
738 /*) realsrcdir=${srcdir};;
739 *) realsrcdir=../${srcdir};;
741 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
742 --target=$target --host=$build --build=$build
744 # We just finished tests for the build machine, so rename
745 # the file auto-build.h in the gcc directory.
746 mv auto-host.h ../auto-build.h
749 build_xm_file="auto-build.h gansidecl.h ${build_xm_file} hwint.h"
752 xm_file="gansidecl.h ${xm_file}"
753 tm_file="gansidecl.h ${tm_file}"
755 vars="host_xm_file tm_file tm_p_file xm_file build_xm_file"
756 links="config.h tm.h tm_p.h tconfig.h hconfig.h"
757 defines="host_xm_defines null_defines null_defines xm_defines build_xm_defines"
760 if test -f config.status; then mv -f config.status config.bak; fi
763 while test -n "$vars"
765 set $vars; var=$1; shift; vars=$*
766 set $links; link=$1; shift; links=$*
767 set $defines; define=$1; shift; defines=$*
770 # Make sure the file is created, even if it is empty.
773 # Define TARGET_CPU_DEFAULT if the system wants one.
774 # This substitutes for lots of *.h files.
775 if test "$target_cpu_default" != "" -a $link = tm.h
777 echo "#define TARGET_CPU_DEFAULT ($target_cpu_default)" >>$link
781 echo "#ifndef GENERATOR_FILE" >>$link
782 echo "#include \"insn-codes.h\"" >>$link
783 echo "#endif" >>$link
786 for file in `eval echo '$'$var`; do
788 auto-host.h | auto-build.h )
791 echo '#ifdef IN_GCC' >>$link
794 echo "#include \"$file\"" >>$link
796 auto-host.h | auto-build.h )
799 echo '#endif' >>$link
804 for def in `eval echo '$'$define`; do
805 echo "#ifndef $def" >>$link
806 echo "#define $def" >>$link
807 echo "#endif" >>$link
811 # Truncate the target if necessary
812 if test x$host_truncate_target != x; then
813 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
816 # Get the version trigger filename from the toplevel
817 if test "${with_gcc_version_trigger+set}" = set; then
818 gcc_version_trigger=$with_gcc_version_trigger
820 gcc_version_trigger=${srcdir}/version.c
823 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
824 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
826 # Compile in configure arguments.
827 if test -f configargs.h ; then
828 # Being re-configured.
829 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
830 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
832 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
834 cat > configargs.h <<EOF
835 /* Generated automatically. */
836 static const char configuration_arguments[] = "$gcc_config_arguments";
840 # Internationalization
842 VERSION="$gcc_version"
843 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
844 [Define to the name of the distribution.])
845 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
846 [Define to the version of the distribution.])
852 # Enable NLS support by default
854 [ --enable-nls use Native Language Support (default)],
857 # if cross compiling, disable NLS support.
858 # It's not worth the trouble, at least for now.
860 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
861 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
865 # if NLS is enabled, also enable check in po subdir
866 if test $enable_nls = yes; then
875 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
877 # Windows32 Registry support for specifying GCC installation paths.
878 AC_ARG_ENABLE(win32-registry,
879 [ --disable-win32-registry
880 Disable lookup of installation paths in the
881 Registry on Windows hosts.
882 --enable-win32-registry Enable registry lookup (default).
883 --enable-win32-registry=KEY
884 Use KEY instead of GCC version as the last portion
885 of the registry key.],,)
887 AC_MSG_CHECKING(whether windows registry support is requested)
888 if test x$enable_win32_registry != xno; then
889 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
890 [Define to 1 if installation paths should be looked up in Windows32
891 Registry. Ignored on non windows32 hosts.])
897 # Check if user specified a different registry key.
898 case x${enable_win32_registry} in
901 gcc_cv_win32_registry_key="$VERSION"
904 # no registry lookup.
905 gcc_cv_win32_registry_key=''
908 # user-specified key.
909 gcc_cv_win32_registry_key="$enable_win32_registry"
913 if test x$enable_win32_registry != xno; then
914 AC_MSG_CHECKING(registry key on windows hosts)
915 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
916 [Define to be the last portion of registry key on windows hosts.])
917 AC_MSG_RESULT($gcc_cv_win32_registry_key)
920 # Get an absolute path to the GCC top-level source directory
926 # Conditionalize the makefile for this host machine.
927 # Make-host contains the concatenation of all host makefile fragments
928 # [there can be more than one]. This file is built by configure.frag.
929 host_overrides=Make-host
931 for f in .. ${host_xmake_file}
933 if test -f ${srcdir}/config/$f
935 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
939 # Conditionalize the makefile for this target machine.
940 # Make-target contains the concatenation of all host makefile fragments
941 # [there can be more than one]. This file is built by configure.frag.
942 target_overrides=Make-target
944 for f in .. ${tmake_file}
946 if test -f ${srcdir}/config/$f
948 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
952 # If the host doesn't support symlinks, modify CC in
953 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
954 # Otherwise, we can use "CC=$(CC)".
956 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
958 cc_set_by_configure="\$(CC)"
959 quoted_cc_set_by_configure="\$(CC)"
960 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
963 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
965 symbolic_link="cp -p"
969 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
970 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
971 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
975 out_object_file=`basename $out_file .c`.o
978 for f in $tm_file; do
981 tm_file_list="${tm_file_list} $f" ;;
982 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
987 for f in $host_xm_file; do
989 auto-host.h | gansidecl.h | hwint.h )
990 host_xm_file_list="${host_xm_file_list} $f" ;;
991 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
996 for f in $build_xm_file; do
998 auto-build.h | auto-host.h | gansidecl.h | hwint.h )
999 build_xm_file_list="${build_xm_file_list} $f" ;;
1000 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1004 # Define macro CROSS_COMPILE in compilation
1005 # if this is a cross-compiler.
1006 # Also use all.cross instead of all.internal
1007 # and add cross-make to Makefile.
1008 cross_overrides="/dev/null"
1009 if test x$host != x$target
1011 cross_defines="CROSS=-DCROSS_COMPILE"
1012 cross_overrides="${topdir}/cross-make"
1015 # If this is a cross-compiler that does not
1016 # have its own set of headers then define
1019 # If this is using newlib, then define inhibit_libc in
1020 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1021 # libgcc.a, but that's OK because newlib should have its own version of
1024 if [test x$host != x$target] && [test x$with_headers = x]; then
1025 inhibit_libc=-Dinhibit_libc
1027 if [test x$with_newlib = xyes]; then
1028 inhibit_libc=-Dinhibit_libc
1031 AC_SUBST(inhibit_libc)
1033 # When building gcc with a cross-compiler, we need to fix a few things.
1034 # This must come after cross-make as we want all.build to override
1036 build_overrides="/dev/null"
1037 if test x$build != x$host
1039 build_overrides="${topdir}/build-make"
1042 # Expand extra_headers to include complete path.
1043 # This substitutes for lots of t-* files.
1045 if test "x$extra_headers" = x
1048 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1049 for file in $extra_headers;
1051 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1055 if test x$use_collect2 = xno; then
1059 # Add a definition of USE_COLLECT2 if system wants one.
1060 # Also tell toplev.c what to do.
1061 # This substitutes for lots of t-* files.
1062 if test x$use_collect2 = x
1067 will_use_collect2="collect2"
1068 maybe_use_collect2="-DUSE_COLLECT2"
1071 # If we have gas in the build tree, make a link to it.
1072 if test -f ../gas/Makefile; then
1073 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1076 # If we have nm in the build tree, make a link to it.
1077 if test -f ../binutils/Makefile; then
1078 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1081 # If we have ld in the build tree, make a link to it.
1082 if test -f ../ld/Makefile; then
1083 # if test x$use_collect2 = x; then
1084 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1086 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1090 # Figure out what assembler we will be using.
1091 AC_MSG_CHECKING(what assembler to use)
1093 gcc_cv_gas_major_version=
1094 gcc_cv_gas_minor_version=
1095 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1096 if test -x "$DEFAULT_ASSEMBLER"; then
1097 gcc_cv_as="$DEFAULT_ASSEMBLER"
1098 elif test -x "$AS"; then
1100 elif test -x as$host_exeext; then
1101 # Build using assembler in the current directory.
1102 gcc_cv_as=./as$host_exeext
1103 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1104 # Single tree build which includes gas.
1105 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1108 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1110 if test x$gcc_cv_gas_version != x; then
1115 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1116 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1120 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1122 # Search the same directories that the installed compiler will
1123 # search. Else we may find the wrong assembler and lose. If we
1124 # do not find a suitable assembler binary, then try the user's
1127 # Also note we have to check MD_EXEC_PREFIX before checking the
1128 # user's path. Unfortunately, there is no good way to get at the
1129 # value of MD_EXEC_PREFIX here. So we do a brute force search
1130 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1131 # to be fixed as part of the make/configure rewrite too.
1133 if test "x$exec_prefix" = xNONE; then
1134 if test "x$prefix" = xNONE; then
1135 test_prefix=/usr/local
1140 test_prefix=$exec_prefix
1143 # If the loop below does not find an assembler, then use whatever
1144 # one we can find in the users's path.
1148 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1149 $test_prefix/lib/gcc-lib/$target \
1150 /usr/lib/gcc/$target/$gcc_version \
1151 /usr/lib/gcc/$target \
1152 $test_prefix/$target/bin/$target/$gcc_version \
1153 $test_prefix/$target/bin \
1158 /bsd43/usr/lib/cmplrs/cc \
1159 /usr/cross64/usr/bin \
1160 /usr/lib/cmplrs/cc \
1161 /sysv/usr/lib/cmplrs/cc \
1162 /svr4/usr/lib/cmplrs/cc \
1165 for dir in $test_dirs; do
1166 if test -f $dir/as$host_exeext; then
1167 gcc_cv_as=$dir/as$host_exeext
1172 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1173 AC_MSG_RESULT("newly built gas")
1175 AC_MSG_RESULT($gcc_cv_as)
1178 # Figure out what nm we will be using.
1179 AC_MSG_CHECKING(what nm to use)
1180 if test -x nm$host_exeext; then
1181 gcc_cv_nm=./nm$host_exeext
1182 elif test x$host = x$target; then
1184 gcc_cv_nm=nm$host_exeext
1186 AC_MSG_RESULT($gcc_cv_nm)
1188 # Figure out what assembler alignment features are present.
1189 AC_MSG_CHECKING(assembler alignment features)
1190 gcc_cv_as_alignment_features=none
1191 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1192 # Gas version 2.6 and later support for .balign and .p2align.
1193 # bytes to skip when using .p2align.
1194 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1195 gcc_cv_as_alignment_features=".balign and .p2align"
1196 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1198 # Gas version 2.8 and later support specifying the maximum
1199 # bytes to skip when using .p2align.
1200 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1201 gcc_cv_as_alignment_features=".p2align including maximum skip"
1202 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1204 elif test x$gcc_cv_as != x; then
1205 # Check if we have .balign and .p2align
1206 echo ".balign 4" > conftest.s
1207 echo ".p2align 2" >> conftest.s
1208 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1209 gcc_cv_as_alignment_features=".balign and .p2align"
1210 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1212 rm -f conftest.s conftest.o
1213 # Check if specifying the maximum bytes to skip when
1214 # using .p2align is supported.
1215 echo ".p2align 4,,7" > conftest.s
1216 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1217 gcc_cv_as_alignment_features=".p2align including maximum skip"
1218 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1220 rm -f conftest.s conftest.o
1222 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1224 AC_MSG_CHECKING(assembler subsection support)
1225 gcc_cv_as_subsections=no
1226 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1227 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1228 gcc_cv_as_subsections="working .subsection -1"
1230 elif test x$gcc_cv_as != x; then
1231 # Check if we have .subsection
1232 echo ".subsection 1" > conftest.s
1233 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1234 gcc_cv_as_subsections=".subsection"
1235 if test x$gcc_cv_nm != x; then
1236 cat > conftest.s <<EOF
1237 conftest_label1: .word 0
1239 conftest_label2: .word 0
1242 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1243 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1244 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1245 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1248 gcc_cv_as_subsections="working .subsection -1"
1253 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1255 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1256 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1257 [Define if your assembler supports .subsection and .subsection -1 starts
1258 emitting at the beginning of your section.])
1260 AC_MSG_RESULT($gcc_cv_as_subsections)
1262 AC_MSG_CHECKING(assembler weak support)
1264 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1265 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1266 gcc_cv_as_weak="yes"
1268 elif test x$gcc_cv_as != x; then
1269 # Check if we have .weak
1270 echo " .weak foobar" > conftest.s
1271 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1272 gcc_cv_as_weak="yes"
1274 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1276 if test x"$gcc_cv_as_weak" = xyes; then
1277 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1279 AC_MSG_RESULT($gcc_cv_as_weak)
1281 AC_MSG_CHECKING(assembler hidden support)
1283 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1284 if test "$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
1285 gcc_cv_as_hidden="yes"
1287 elif test x$gcc_cv_as != x; then
1288 # Check if we have .hidden
1289 echo " .hidden foobar" > conftest.s
1290 echo "foobar:" >> conftest.s
1291 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1292 gcc_cv_as_hidden="yes"
1294 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1296 if test x"$gcc_cv_as_hidden" = xyes; then
1297 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1298 [Define if your assembler supports .hidden.])
1300 AC_MSG_RESULT($gcc_cv_as_hidden)
1304 AC_CACHE_CHECK([assembler .register pseudo-op support],
1305 gcc_cv_as_register_pseudo_op, [
1306 gcc_cv_as_register_pseudo_op=unknown
1307 if test x$gcc_cv_as != x; then
1308 # Check if we have .register
1309 echo ".register %g2, #scratch" > conftest.s
1310 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1311 gcc_cv_as_register_pseudo_op=yes
1313 gcc_cv_as_register_pseudo_op=no
1315 rm -f conftest.s conftest.o
1318 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1319 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1320 [Define if your assembler supports .register.])
1323 AC_CACHE_CHECK([assembler supports -relax],
1324 gcc_cv_as_relax_opt, [
1325 gcc_cv_as_relax_opt=unknown
1326 if test x$gcc_cv_as != x; then
1327 # Check if gas supports -relax
1328 echo ".text" > conftest.s
1329 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1330 gcc_cv_as_relax_opt=yes
1332 gcc_cv_as_relax_opt=no
1334 rm -f conftest.s conftest.o
1337 if test "x$gcc_cv_as_relax_opt" = xyes; then
1338 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1339 [Define if your assembler supports -relax option.])
1344 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1345 gcc_cv_as_flags64, [
1346 if test -n "$gcc_cv_as"; then
1347 echo ".xword foo" > conftest.s
1348 gcc_cv_as_flags64=no
1349 for flag in "-xarch=v9" "-64 -Av9"; do
1350 if $gcc_cv_as $flag -o conftest.o conftest.s \
1351 > /dev/null 2>&1; then
1352 gcc_cv_as_flags64=$flag
1356 rm -f conftest.s conftest.o
1358 if test "$gas" = yes; then
1359 gcc_cv_as_flags64="-64 -Av9"
1361 gcc_cv_as_flags64="-xarch=v9"
1365 if test "x$gcc_cv_as_flags64" = xno; then
1367 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1368 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1371 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1372 [Define if the assembler supports 64bit sparc.])
1375 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1379 if test "x$gcc_cv_as_flags64" != xno; then
1380 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1381 gcc_cv_as_offsetable_lo10, [
1382 gcc_cv_as_offsetable_lo10=unknown
1383 if test "x$gcc_cv_as" != x; then
1384 # Check if assembler has offsetable %lo()
1385 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1386 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1387 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1389 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1390 > /dev/null 2>&1; then
1391 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1392 gcc_cv_as_offsetable_lo10=no
1394 gcc_cv_as_offsetable_lo10=yes
1397 gcc_cv_as_offsetable_lo10=no
1399 rm -f conftest.s conftest.o conftest1.s conftest1.o
1402 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1403 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1404 [Define if your assembler supports offsetable %lo().])
1412 AC_MSG_CHECKING(assembler instructions)
1413 gcc_cv_as_instructions=
1414 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1415 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1416 gcc_cv_as_instructions="filds fists"
1418 elif test x$gcc_cv_as != x; then
1419 set "filds fists" "filds mem; fists mem"
1422 echo "$2" > conftest.s
1423 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1424 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1428 rm -f conftest.s conftest.o
1430 if test x"$gcc_cv_as_instructions" != x; then
1431 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1433 AC_MSG_RESULT($gcc_cv_as_instructions)
1437 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1438 gcc_cv_as_dwarf2_debug_line=no
1439 # ??? Not all targets support dwarf2 debug_line, even within a version
1440 # of gas. Moreover, we need to emit a valid instruction to trigger any
1441 # info to the output file. So, as supported targets are added to gas 2.11,
1442 # add some instruction here to (also) show we expect this might work.
1443 # ??? Once 2.11 is released, probably need to add first known working
1444 # version to the per-target configury.
1446 i?86*-*-* | mips*-*-* | alpha*-*-* | sparc*-*-*)
1453 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1455 if test "$gcc_cv_gas_major_version" -eq 2 \
1456 -a "$gcc_cv_gas_minor_version" -ge 11 \
1457 -o "$gcc_cv_gas_major_version" -gt 2 \
1458 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1459 && test x"$insn" != x ; then
1460 gcc_cv_as_dwarf2_debug_line="yes"
1462 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1463 echo ' .file 0 "conftest.s"' > conftest.s
1464 echo ' .loc 0 3 0' >> conftest.s
1465 echo " $insn" >> conftest.s
1466 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1467 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1468 gcc_cv_as_dwarf2_debug_line="yes"
1470 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1472 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1473 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1474 [Define if your assembler supports dwarf2 .file/.loc directives.])
1476 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1478 # Figure out what language subdirectories are present.
1479 # Look if the user specified --enable-languages="..."; if not, use
1480 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1482 if test x"${enable_languages+set}" != xset; then
1483 if test x"${LANGUAGES+set}" = xset; then
1484 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1486 enable_languages=all
1489 if test x"${enable_languages}" = x; then
1490 AC_MSG_ERROR([--enable-languages needs at least one argument])
1494 for lang in ${srcdir}/*/config-lang.in ..
1498 # The odd quoting in the next line works around
1499 # an apparent bug in bash 1.12 on linux.
1501 ${srcdir}/[*]/config-lang.in) ;;
1503 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1504 if test "x$lang_alias" = x
1506 echo "$lang doesn't set \$language." 1>&2
1509 if test x"${enable_languages}" = xall && test x"${lang_alias}" != xCHILL; then
1512 case "${enable_languages}" in
1513 ${lang_alias} | "${lang_alias},"* | *",${lang_alias},"* | *",${lang_alias}" )
1521 if test x"${add_this_lang}" = xyes; then
1523 ${srcdir}/ada/config-lang.in)
1524 if test x$gnat = xyes ; then
1525 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1529 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1538 # Make gthr-default.h if we have a thread file.
1540 if test $thread_file != single; then
1541 rm -f gthr-default.h
1542 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1543 gthread_flags=-DHAVE_GTHR_DEFAULT
1545 AC_SUBST(gthread_flags)
1547 # Find out what GC implementation we want, or may, use.
1549 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1550 with the compiler.],
1556 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1559 [if test $ac_cv_func_mmap_anywhere = yes \
1560 || test $ac_cv_func_valloc = yes; then
1566 echo "Using $GGC for garbage collection."
1568 # Use the system's zlib library.
1570 zlibinc="-I\$(srcdir)/../zlib"
1571 AC_ARG_WITH(system-zlib,
1572 [ --with-system-zlib use installed libz],
1579 # Build a new-abi (c++) system
1580 AC_ARG_ENABLE(new-gxx-abi,
1581 [ --enable-new-gxx-abi
1582 select the new abi for g++. You must select an ABI
1583 at configuration time, so that the correct runtime
1584 support is built. You cannot mix ABIs.],
1586 enable_new_gxx_abi=yes)
1588 if test x$enable_new_gxx_abi = xyes; then
1589 AC_DEFINE(ENABLE_NEW_GXX_ABI, 1,
1590 [Define if you want to always select the new-abi for g++.])
1591 GXX_ABI_FLAG='-fnew-abi'
1595 AC_SUBST(GXX_ABI_FLAG)
1597 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, $ac_esn,
1598 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1599 AC_SUBST(HAVE_LIBSTDCXX_V3)
1601 dnl Very limited version of automake's enable-maintainer-mode
1603 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1604 dnl maintainer-mode is disabled by default
1605 AC_ARG_ENABLE(maintainer-mode,
1606 [ --enable-maintainer-mode enable make rules and dependencies not useful
1607 (and sometimes confusing) to the casual installer],
1608 maintainer_mode=$enableval,
1611 AC_MSG_RESULT($maintainer_mode)
1613 if test "$maintainer_mode" = "yes"; then
1620 # Make empty files to contain the specs and options for each language.
1621 # Then add #include lines to for a compiler that has specs and/or options.
1626 rm -f specs.h options.h gencheck.h
1627 touch specs.h options.h gencheck.h
1628 for subdir in . $subdirs
1630 if test -f $srcdir/$subdir/lang-specs.h; then
1631 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1632 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1634 if test -f $srcdir/$subdir/lang-options.h; then
1635 echo "#include \"$subdir/lang-options.h\"" >>options.h
1636 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1638 if test -f $srcdir/$subdir/$subdir-tree.def; then
1639 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1640 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1644 # These (without "all_") are set in each config-lang.in.
1645 # `language' must be a single word so is spelled singularly.
1651 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1652 # List of language makefile fragments.
1657 # Add the language fragments.
1658 # Languages are added via two mechanisms. Some information must be
1659 # recorded in makefile variables, these are defined in config-lang.in.
1660 # We accumulate them and plug them into the main Makefile.
1661 # The other mechanism is a set of hooks for each of the main targets
1662 # like `clean', `install', etc.
1664 language_fragments="Make-lang"
1665 language_hooks="Make-hooks"
1667 for s in .. $subdirs
1679 . ${srcdir}/$s/config-lang.in
1680 if test "x$language" = x
1682 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1685 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1686 if test -f ${srcdir}/$s/Makefile.in
1687 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1689 all_languages="$all_languages $language"
1690 if test "x$boot_language" = xyes
1692 all_boot_languages="$all_boot_languages $language"
1694 all_compilers="$all_compilers $compilers"
1695 all_stagestuff="$all_stagestuff $stagestuff"
1696 all_diff_excludes="$all_diff_excludes $diff_excludes"
1697 all_headers="$all_headers $headers"
1698 all_outputs="$all_outputs $outputs"
1699 all_lib2funcs="$all_lib2funcs $lib2funcs"
1703 # Since we can't use `::' targets, we link each language in
1704 # with a set of hooks, reached indirectly via lang.${target}.
1708 target_list="all.build all.cross start.encap rest.encap \
1710 install-normal install-common install-info install-man \
1712 mostlyclean clean distclean extraclean maintainer-clean \
1713 stage1 stage2 stage3 stage4"
1714 for t in $target_list
1717 for lang in .. $all_languages
1719 if test $lang != ".."; then
1723 echo "lang.$t: $x" >> Make-hooks
1726 # If we're not building in srcdir, create .gdbinit.
1728 if test ! -f Makefile.in; then
1729 echo "dir ." > .gdbinit
1730 echo "dir ${srcdir}" >> .gdbinit
1731 if test x$gdb_needs_out_file_path = xyes
1733 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1735 if test "x$subdirs" != x; then
1738 echo "dir ${srcdir}/$s" >> .gdbinit
1741 echo "source ${srcdir}/.gdbinit" >> .gdbinit
1744 # Define variables host_canonical and build_canonical
1745 # because some Cygnus local changes in the Makefile depend on them.
1746 build_canonical=${build}
1747 host_canonical=${host}
1749 if test "${host}" != "${target}" ; then
1750 target_subdir=${target}/
1752 AC_SUBST(build_canonical)
1753 AC_SUBST(host_canonical)
1754 AC_SUBST(target_subdir)
1756 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1757 # absolute path for gcc_tooldir based on inserting the number of up-directory
1758 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1759 # $(libsubdir)/@(unlibsubdir) based path.
1760 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1761 # make and thus we'd get different behavior depending on where we built the
1763 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1764 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1766 changequote(<<, >>)dnl
1767 # An explanation of the sed strings:
1768 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1769 # -e 's|/$||' match a trailing forward slash and eliminates it
1770 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1771 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1773 # (*) Note this pattern overwrites the first character of the string
1774 # with a forward slash if one is not already present. This is not a
1775 # problem because the exact names of the sub-directories concerned is
1776 # unimportant, just the number of them matters.
1778 # The practical upshot of these patterns is like this:
1780 # prefix exec_prefix result
1781 # ------ ----------- ------
1783 # /foo/ /foo/bar ../
1784 # /foo /foo/bar/ ../
1785 # /foo/ /foo/bar/ ../
1786 # /foo /foo/bar/ugg ../../
1789 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1790 changequote([, ])dnl
1792 AC_SUBST(gcc_tooldir)
1795 # Nothing to do for FLOAT_H, float_format already handled.
1799 # Process the language and host/target makefile fragments.
1800 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1802 # Substitute configuration variables
1804 AC_SUBST(all_boot_languages)
1805 AC_SUBST(all_compilers)
1806 AC_SUBST(all_diff_excludes)
1807 AC_SUBST(all_headers)
1808 AC_SUBST(all_lang_makefiles)
1809 AC_SUBST(all_languages)
1810 AC_SUBST(all_lib2funcs)
1811 AC_SUBST(all_stagestuff)
1812 AC_SUBST(build_exeext)
1813 AC_SUBST(build_install_headers_dir)
1814 AC_SUBST(build_xm_file_list)
1815 AC_SUBST(cc_set_by_configure)
1816 AC_SUBST(quoted_cc_set_by_configure)
1817 AC_SUBST(cpp_install_dir)
1818 AC_SUBST(dep_host_xmake_file)
1819 AC_SUBST(dep_tmake_file)
1820 AC_SUBST(extra_c_flags)
1821 AC_SUBST(extra_headers_list)
1822 AC_SUBST(extra_objs)
1823 AC_SUBST(extra_parts)
1824 AC_SUBST(extra_passes)
1825 AC_SUBST(extra_programs)
1826 AC_SUBST(float_h_file)
1827 AC_SUBST(gcc_config_arguments)
1828 AC_SUBST(gcc_gxx_include_dir)
1829 AC_SUBST(gcc_version)
1830 AC_SUBST(gcc_version_full)
1831 AC_SUBST(gcc_version_trigger)
1832 AC_SUBST(host_exeext)
1833 AC_SUBST(host_extra_gcc_objs)
1834 AC_SUBST(host_xm_file_list)
1836 AC_SUBST(lang_options_files)
1837 AC_SUBST(lang_specs_files)
1838 AC_SUBST(lang_tree_files)
1839 AC_SUBST(local_prefix)
1840 AC_SUBST(maybe_use_collect2)
1842 AC_SUBST(objc_boehm_gc)
1844 AC_SUBST(out_object_file)
1845 AC_SUBST(stage_prefix_set_by_configure)
1846 AC_SUBST(symbolic_link)
1847 AC_SUBST(thread_file)
1848 AC_SUBST(tm_file_list)
1849 AC_SUBST(will_use_collect2)
1850 AC_SUBST(c_target_objs)
1851 AC_SUBST(cxx_target_objs)
1854 AC_SUBST_FILE(target_overrides)
1855 AC_SUBST_FILE(host_overrides)
1856 AC_SUBST(cross_defines)
1857 AC_SUBST_FILE(cross_overrides)
1858 AC_SUBST_FILE(build_overrides)
1859 AC_SUBST_FILE(language_fragments)
1860 AC_SUBST_FILE(language_hooks)
1862 # Echo that links are built
1863 if test x$host = x$target
1871 if test x$host != x$build
1873 str3=" on a $build system"
1876 if test "x$str2" != x || test "x$str3" != x
1881 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1883 if test "x$str2" != x || test "x$str3" != x
1885 echo " ${str2}${str3}." 1>&2
1888 # Truncate the target if necessary
1889 if test x$host_truncate_target != x; then
1890 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1893 # Configure the subdirectories
1894 # AC_CONFIG_SUBDIRS($subdirs)
1896 # Create the Makefile
1897 # and configure language subdirectories
1898 AC_OUTPUT($all_outputs,
1900 case x$CONFIG_HEADERS in
1901 xauto-host.h:config.in)
1904 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1905 # bootstrapping and the installation procedure can still use
1906 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
1907 # FLAGS_TO_PASS has been modified to solve the problem there.
1908 # This is virtually a duplicate of what happens in configure.lang; we do
1909 # an extra check to make sure this only happens if ln -s can be used.
1910 if test "$symbolic_link" = "ln -s"; then
1911 for d in .. ${subdirs} ; do
1912 if test $d != ..; then
1915 for t in stage1 stage2 stage3 stage4 include
1918 $symbolic_link ../$t $t 2>/dev/null
1924 # Avoid having to add intl to our include paths.
1925 if test -f intl/libintl.h; then
1926 echo creating libintl.h
1927 echo '#include "intl/libintl.h"' >libintl.h
1934 target_alias='${target_alias}'
1936 subdirs='${subdirs}'
1937 symbolic_link='${symbolic_link}'
1938 program_transform_set='${program_transform_set}'
1939 program_transform_name='${program_transform_name}'
1940 dep_host_xmake_file='${dep_host_xmake_file}'
1941 host_xmake_file='${host_xmake_file}'
1942 dep_tmake_file='${dep_tmake_file}'
1943 tmake_file='${tmake_file}'
1944 thread_file='${thread_file}'
1945 gcc_config_arguments='${gcc_config_arguments}'
1946 gcc_version='${gcc_version}'
1947 gcc_version_full='${gcc_version_full}'
1948 gcc_version_trigger='${gcc_version_trigger}'
1949 local_prefix='${local_prefix}'
1950 build_install_headers_dir='${build_install_headers_dir}'
1951 build_exeext='${build_exeext}'
1952 host_exeext='${host_exeext}'
1953 out_file='${out_file}'
1954 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
1955 SET_MAKE='${SET_MAKE}'
1956 target_list='${target_list}'
1957 target_overrides='${target_overrides}'
1958 host_overrides='${host_overrides}'
1959 cross_defines='${cross_defines}'
1960 cross_overrides='${cross_overrides}'
1961 build_overrides='${build_overrides}'
1962 cpp_install_dir='${cpp_install_dir}'