1 # configure.in for GNU CC
2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
6 #This file is part of GNU CC.
8 #GNU CC is free software; you can redistribute it and/or modify
9 #it under the terms of the GNU General Public License as published by
10 #the Free Software Foundation; either version 2, or (at your option)
13 #GNU CC is distributed in the hope that it will be useful,
14 #but WITHOUT ANY WARRANTY; without even the implied warranty of
15 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 #GNU General Public License for more details.
18 #You should have received a copy of the GNU General Public License
19 #along with GNU CC; see the file COPYING. If not, write to
20 #the Free Software Foundation, 59 Temple Place - Suite 330,
21 #Boston, MA 02111-1307, USA.
23 # Initialization and defaults
26 AC_CONFIG_HEADER(auto-host.h:config.in)
33 # Check for bogus environment variables.
34 # Test if LIBRARY_PATH contains the notation for the current directory
35 # since this would lead to problems installing/building glibc.
36 # LIBRARY_PATH contains the current directory if one of the following
38 # - one of the terminals (":" and ";") is the first or last sign
39 # - two terminals occur directly after each other
40 # - the path contains an element with a dot in it
41 AC_MSG_CHECKING(LIBRARY_PATH variable)
43 case ${LIBRARY_PATH} in
44 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
45 library_path_setting="contains current directory"
48 library_path_setting="ok"
52 AC_MSG_RESULT($library_path_setting)
53 if test "$library_path_setting" != "ok"; then
55 *** LIBRARY_PATH shouldn't contain the current directory when
56 *** building gcc. Please change the environment variable
57 *** and run configure again.])
60 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
61 # since this would lead to problems installing/building glibc.
62 # GCC_EXEC_PREFIX contains the current directory if one of the following
64 # - one of the terminals (":" and ";") is the first or last sign
65 # - two terminals occur directly after each other
66 # - the path contains an element with a dot in it
67 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
69 case ${GCC_EXEC_PREFIX} in
70 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
71 gcc_exec_prefix_setting="contains current directory"
74 gcc_exec_prefix_setting="ok"
78 AC_MSG_RESULT($gcc_exec_prefix_setting)
79 if test "$gcc_exec_prefix_setting" != "ok"; then
81 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
82 *** building gcc. Please change the environment variable
83 *** and run configure again.])
86 # Check for additional parameters
90 [ --with-gnu-ld arrange to work with GNU ld.],
91 gnu_ld_flag="$with_gnu_ld",
96 [ --with-ld arrange to use the specified ld (full pathname).],
97 DEFAULT_LINKER="$with_ld")
98 if test x"${DEFAULT_LINKER+set}" = x"set"; then
99 if test ! -x "$DEFAULT_LINKER"; then
100 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
101 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
104 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
105 [Define to enable the use of a default linker.])
110 [ --with-gnu-as arrange to work with GNU as.],
111 gas_flag="$with_gnu_as",
115 [ --with-as arrange to use the specified as (full pathname).],
116 DEFAULT_ASSEMBLER="$with_as")
117 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
118 if test ! -x "$DEFAULT_ASSEMBLER"; then
119 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
120 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
123 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
124 [Define to enable the use of a default assembler.])
129 [ --with-stabs arrange to use stabs instead of host debug format.],
135 [ --with-elf arrange to use ELF instead of host debug format.],
139 # Specify the local prefix
141 AC_ARG_WITH(local-prefix,
142 [ --with-local-prefix=DIR specifies directory to put local include.],
143 [case "${withval}" in
144 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
146 *) local_prefix=$with_local_prefix ;;
149 # Default local prefix if it is empty
150 if test x$local_prefix = x; then
151 local_prefix=/usr/local
154 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
155 # passed in by the toplevel make and thus we'd get different behavior
156 # depending on where we built the sources.
158 # Specify the g++ header file directory
159 AC_ARG_WITH(gxx-include-dir,
160 [ --with-gxx-include-dir=DIR
161 specifies directory to put g++ header files.],
162 [case "${withval}" in
163 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
165 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
168 if test x${gcc_gxx_include_dir} = x; then
169 if test x${enable_version_specific_runtime_libs} = xyes; then
170 gcc_gxx_include_dir='${libsubdir}/include/g++'
172 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
173 changequote(<<, >>)dnl
174 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
179 # Enable expensive internal checks
180 AC_ARG_ENABLE(checking,
181 [ --enable-checking[=LIST]
182 enable expensive run-time checks. With LIST,
183 enable only specific categories of checks.
184 Categories are: misc,tree,rtl,gc,gcac; default
190 ac_gc_always_collect=
191 case "${enableval}" in
192 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;;
194 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
195 set fnord $enableval; shift
200 misc) ac_checking=1 ;;
201 tree) ac_tree_checking=1 ;;
202 rtl) ac_rtl_checking=1 ;;
203 gc) ac_gc_checking=1 ;;
204 gcac) ac_gc_always_collect=1 ;;
205 *) AC_MSG_ERROR(unknown check category $check) ;;
211 # Enable some checks by default for development versions of GCC
212 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1;])
213 if test x$ac_checking != x ; then
214 AC_DEFINE(ENABLE_CHECKING, 1,
215 [Define if you want more run-time sanity checks. This one gets a grab
216 bag of miscellaneous but relatively cheap checks.])
218 if test x$ac_tree_checking != x ; then
219 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
220 [Define if you want all operations on trees (the basic data
221 structure of the front ends) to be checked for dynamic type safety
222 at runtime. This is moderately expensive.])
224 if test x$ac_rtl_checking != x ; then
225 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
226 [Define if you want all operations on RTL (the basic data structure
227 of the optimizer and back end) to be checked for dynamic type safety
228 at runtime. This is quite expensive.])
230 if test x$ac_gc_checking != x ; then
231 AC_DEFINE(ENABLE_GC_CHECKING, 1,
232 [Define if you want the garbage collector to do object poisoning and
233 other memory allocation checks. This is quite expensive.])
235 if test x$ac_gc_always_collect != x ; then
236 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
237 [Define if you want the garbage collector to operate in maximally
238 paranoid mode, validating the entire heap and collecting garbage at
239 every opportunity. This is extremely expensive.])
244 [ --disable-cpp don't provide a user-visible C preprocessor.],
245 [], [enable_cpp=yes])
247 AC_ARG_WITH(cpp_install_dir,
248 [ --with-cpp-install-dir=DIR
249 install the user visible C preprocessor in DIR
250 (relative to PREFIX) as well as PREFIX/bin.],
251 [if test x$withval = xyes; then
252 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
253 elif test x$withval != xno; then
254 cpp_install_dir=$withval
257 # Enable Multibyte Characters for C/C++
258 AC_ARG_ENABLE(c-mbchar,
259 [ --enable-c-mbchar Enable multibyte characters for C and C++.],
260 if test x$enable_c_mbchar != xno; then
261 AC_DEFINE(MULTIBYTE_CHARS, 1,
262 [Define if you want the C and C++ compilers to support multibyte
263 character sets for source code.])
267 # Pass with no value to take the default
268 # Pass with a value to specify a thread package
269 AC_ARG_ENABLE(threads,
270 [ --enable-threads enable thread usage for target GCC.
271 --enable-threads=LIB use LIB thread package for target GCC.],,
274 enable_threads_flag=$enable_threads
275 # Check if a valid thread package
276 case x${enable_threads_flag} in
279 target_thread_file='single'
283 target_thread_file=''
285 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
286 xsolaris | xwin32 | xdce | xvxworks | xaix)
287 target_thread_file=$enable_threads_flag
290 echo "$enable_threads is an unknown thread package" 1>&2
295 AC_ARG_ENABLE(objc-gc,
296 [ --enable-objc-gc enable the use of Boehm's garbage collector with
297 the GNU Objective-C runtime.],
298 if test x$enable_objc_gc = xno; then
306 [ --with-dwarf2 force the default debug format to be DWARF2.],
307 dwarf2="$with_dwarf2",
310 AC_ARG_ENABLE(shared,
311 [ --disable-shared don't provide a shared libgcc.],
312 [], [enable_shared=yes])
313 AC_SUBST(enable_shared)
315 # Determine the host, build, and target systems
318 # Find the native compiler
321 # autoconf is lame and doesn't give us any substitution variable for this.
322 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
323 NO_MINUS_C_MINUS_O=yes
325 OUTPUT_OPTION='-o $@'
327 AC_SUBST(NO_MINUS_C_MINUS_O)
328 AC_SUBST(OUTPUT_OPTION)
332 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
333 ac_cv_prog_cc_no_long_long,
334 [save_CFLAGS="$CFLAGS"
335 CFLAGS="-Wno-long-long"
336 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
337 ac_cv_prog_cc_no_long_long=no)
338 CFLAGS="$save_CFLAGS"])
340 if test $ac_cv_prog_cc_no_long_long = yes; then
341 strict1_warn="-pedantic -Wno-long-long"
343 AC_SUBST(strict1_warn)
345 # If the native compiler is GCC, we can enable warnings even in stage1.
346 # That's useful for people building cross-compilers, or just running a
349 if test "x$GCC" = "xyes"; then
350 warn_cflags='$(GCC_WARN_CFLAGS)'
352 AC_SUBST(warn_cflags)
354 # Stage specific cflags for build.
360 stage1_cflags="-Wa,-J"
366 AC_SUBST(stage1_cflags)
370 AC_MSG_CHECKING([whether a default assembler was specified])
371 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
372 if test x"$gas_flag" = x"no"; then
373 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
375 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
381 AC_MSG_CHECKING([whether a default linker was specified])
382 if test x"${DEFAULT_LINKER+set}" = x"set"; then
383 if test x"$gnu_ld_flag" = x"no"; then
384 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
386 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
392 AC_MSG_CHECKING(for GNU C library)
393 AC_CACHE_VAL(gcc_cv_glibc,
395 [#include <features.h>],[
396 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
397 #error Not a GNU C library system
401 AC_MSG_RESULT($gcc_cv_glibc)
402 if test $gcc_cv_glibc = yes; then
403 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
408 # Find some useful tools
420 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
421 fcntl.h unistd.h stab.h sys/file.h sys/time.h \
422 sys/resource.h sys/param.h sys/times.h sys/stat.h \
423 direct.h malloc.h langinfo.h iconv.h)
425 # Check for thread headers.
426 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
427 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
429 # See if GNAT has been installed
430 AC_CHECK_PROG(gnat, gnatbind, yes, no)
432 # See if we have the mktemp command.
433 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
435 # Do we have a single-tree copy of texinfo?
436 if test -f $srcdir/../texinfo/Makefile.in; then
437 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
438 gcc_cv_prog_makeinfo_modern=yes
439 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
441 # See if makeinfo has been installed and is modern enough
442 # that we can use it.
443 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
444 [GNU texinfo.* \([0-9][0-9.]*\)],
448 if test $gcc_cv_prog_makeinfo_modern = no; then
450 *** Makeinfo is missing or too old.
451 *** Info documentation will not be built.])
454 BUILD_INFO=info AC_SUBST(BUILD_INFO)
457 # Is pod2man recent enough to regenerate manpages?
458 AC_MSG_CHECKING([for recent Pod::Man])
459 if perl -e 'use 1.10 Pod::Man' >/dev/null 2>&1; then
461 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
468 dnl Don't use AC_PROG_LEX; we insist on flex.
469 dnl LEXLIB is not useful in gcc.
470 if test -f $srcdir/../flex/skel.c; then
471 FLEX='$(objdir)/../flex/flex'
473 AC_CHECK_PROG(FLEX, flex, flex, false)
477 # The -L switch is so bison can find its skeleton file.
478 if test -f $srcdir/../bison/bison.simple; then
479 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
481 AC_CHECK_PROG(BISON, bison, bison, false)
484 # See if the stage1 system preprocessor understands the ANSI C
485 # preprocessor stringification operator.
488 # Use <inttypes.h> only if it exists,
489 # doesn't clash with <sys/types.h>, and declares intmax_t.
490 AC_MSG_CHECKING(for inttypes.h)
491 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
493 [#include <sys/types.h>
494 #include <inttypes.h>],
496 [gcc_cv_header_inttypes_h=yes],
497 gcc_cv_header_inttypes_h=no)])
498 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
499 if test $gcc_cv_header_inttypes_h = yes; then
500 AC_DEFINE(HAVE_INTTYPES_H, 1,
501 [Define if you have a working <inttypes.h> header file.])
505 # Determine if enumerated bitfields are unsigned. ISO C says they can
506 # be either signed or unsigned.
508 AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
509 [AC_TRY_RUN(#include <stdlib.h>
510 enum t { BLAH = 128 } ;
511 struct s_t { enum t member : 8; } s ;
515 if (s.member < 0) exit(1);
518 }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
519 if test $gcc_cv_enum_bf_unsigned = yes; then
520 AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
521 [Define if enumerated bitfields are treated as unsigned values.])
524 AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy \
525 strchr strrchr kill getrlimit setrlimit atoll atoq \
526 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
527 fputs_unlocked getrusage iconv nl_langinfo)
529 AC_CHECK_TYPE(ssize_t, int)
531 # Try to determine the array type of the second argument of getgroups
532 # for the target system (int or gid_t).
534 if test "${target}" = "${build}"; then
535 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
538 # This condition may need some tweaking. It should include all
539 # targets where the array type of the second argument of getgroups
540 # is int and the type of gid_t is not equivalent to int.
541 *-*-sunos* | *-*-ultrix*)
542 TARGET_GETGROUPS_T=int
545 TARGET_GETGROUPS_T=gid_t
549 AC_SUBST(TARGET_GETGROUPS_T)
551 gcc_AC_FUNC_VFPRINTF_DOPRNT
553 gcc_AC_FUNC_PRINTF_PTR
558 *** UWIN may not be used as a host platform because
559 *** linking with posix.dll is not allowed by the GNU GPL])
563 AC_FUNC_MMAP_ANYWHERE
566 # We will need to find libiberty.h and ansidecl.h
567 saved_CFLAGS="$CFLAGS"
568 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
569 gcc_AC_CHECK_DECLS(bcopy \
570 getenv atol sbrk abort atof getcwd getwd \
571 strsignal putc_unlocked fputs_unlocked strstr environ \
572 malloc realloc calloc free basename getopt, , ,[
573 #include "gansidecl.h"
574 #include "system.h"])
576 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
577 #include "gansidecl.h"
579 #ifdef HAVE_SYS_RESOURCE_H
580 #include <sys/resource.h>
584 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
585 CFLAGS="$saved_CFLAGS"
587 # mkdir takes a single argument on some systems.
588 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
598 build_install_headers_dir=install-headers-tar
603 host_truncate_target=
606 # Decode the host machine, then the target machine.
607 # For the host machine, we save the xm_file variable as host_xm_file;
608 # then we decode the target machine and forget everything else
609 # that came from the host machine.
610 for machine in $build $host $target; do
611 . ${srcdir}/config.gcc
614 extra_objs="${host_extra_objs} ${extra_objs}"
616 # Default the target-machine variables that were not explicitly set.
617 if test x"$tm_file" = x
618 then tm_file=$cpu_type/$cpu_type.h; fi
620 if test x"$extra_headers" = x
621 then extra_headers=; fi
623 if test x"$xm_file" = x
624 then xm_file=$cpu_type/xm-$cpu_type.h; fi
626 if test x$md_file = x
627 then md_file=$cpu_type/$cpu_type.md; fi
629 if test x$out_file = x
630 then out_file=$cpu_type/$cpu_type.c; fi
632 if test x"$tmake_file" = x
633 then tmake_file=$cpu_type/t-$cpu_type
636 if test x"$dwarf2" = xyes
637 then tm_file="$tm_file tm-dwarf2.h"
640 if test x$float_format = x
641 then float_format=i64
644 if test $float_format = none
645 then float_h_file=Makefile.in
646 else float_h_file=float-$float_format.h
649 # Handle cpp installation.
650 if test x$enable_cpp != xno
652 tmake_file="$tmake_file t-install-cpp"
655 # Say what files are being used for the output code and MD file.
656 echo "Using \`$srcdir/config/$out_file' to output insns."
657 echo "Using \`$srcdir/config/$md_file' as machine description file."
660 for f in $tm_file; do
663 if test $count = ax; then
664 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
666 echo "Using the following target machine macro files:"
667 for f in $tm_file; do
668 echo " $srcdir/config/$f"
673 for f in $host_xm_file; do
676 if test $count = ax; then
677 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
679 echo "Using the following host machine macro files:"
680 for f in $host_xm_file; do
681 echo " $srcdir/config/$f"
685 if test "$host_xm_file" != "$build_xm_file"; then
687 for f in $build_xm_file; do
690 if test $count = ax; then
691 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
693 echo "Using the following build machine macro files:"
694 for f in $build_xm_file; do
695 echo " $srcdir/config/$f"
700 if test x$thread_file = x; then
701 if test x$target_thread_file != x; then
702 thread_file=$target_thread_file
708 # Set up the header files.
709 # $links is the list of header files to create.
710 # $vars is the list of shell variables with file names to include.
711 # auto-host.h is the file containing items generated by autoconf and is
712 # the first file included by config.h.
714 host_xm_file="auto-host.h gansidecl.h ${host_xm_file} defaults.h hwint.h"
716 # If host=build, it is correct to have hconfig include auto-host.h
717 # as well. If host!=build, we are in error and need to do more
718 # work to find out the build config parameters.
719 if test x$host = x$build
721 build_xm_file="auto-host.h gansidecl.h ${build_xm_file} defaults.h hwint.h"
723 # We create a subdir, then run autoconf in the subdir.
724 # To prevent recursion we set host and build for the new
725 # invocation of configure to the build for this invocation
732 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
733 *) realsrcdir=../${srcdir};;
735 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
736 --target=$target --host=$build --build=$build
738 # We just finished tests for the build machine, so rename
739 # the file auto-build.h in the gcc directory.
740 mv auto-host.h ../auto-build.h
743 build_xm_file="auto-build.h gansidecl.h ${build_xm_file} defaults.h hwint.h"
746 xm_file="gansidecl.h ${xm_file} defaults.h"
747 tm_file="gansidecl.h ${tm_file} defaults.h"
749 vars="host_xm_file tm_file tm_p_file xm_file build_xm_file"
750 links="config.h tm.h tm_p.h tconfig.h hconfig.h"
751 defines="host_xm_defines null_defines null_defines xm_defines build_xm_defines"
754 if test -f config.status; then mv -f config.status config.bak; fi
757 while test -n "$vars"
759 set $vars; var=$1; shift; vars=$*
760 set $links; link=$1; shift; links=$*
761 set $defines; define=$1; shift; defines=$*
764 # Make sure the file is created, even if it is empty.
767 # Define TARGET_CPU_DEFAULT if the system wants one.
768 # This substitutes for lots of *.h files.
769 if test "$target_cpu_default" != "" -a $link = tm.h
771 echo "#define TARGET_CPU_DEFAULT ($target_cpu_default)" >>$link
774 for file in `eval echo '$'$var`; do
776 auto-host.h | auto-build.h )
779 echo '#ifdef IN_GCC' >>$link
782 echo "#include \"$file\"" >>$link
784 auto-host.h | auto-build.h )
787 echo '#endif' >>$link
792 for def in `eval echo '$'$define`; do
793 echo "#ifndef $def" >>$link
794 echo "#define $def" >>$link
795 echo "#endif" >>$link
800 # Include insn-codes.h last, because it includes machmode.h,
801 # and we want EXTRA_CC_MODES to be taken into account.
802 echo "#ifndef GENERATOR_FILE" >>$link
803 echo "#include \"insn-codes.h\"" >>$link
804 echo "#endif" >>$link
808 # Truncate the target if necessary
809 if test x$host_truncate_target != x; then
810 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
813 # Get the version trigger filename from the toplevel
814 if test "${with_gcc_version_trigger+set}" = set; then
815 gcc_version_trigger=$with_gcc_version_trigger
817 gcc_version_trigger=${srcdir}/version.c
820 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
821 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
823 # Compile in configure arguments.
824 if test -f configargs.h ; then
825 # Being re-configured.
826 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
827 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
829 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
831 cat > configargs.h <<EOF
832 /* Generated automatically. */
833 static const char configuration_arguments[] = "$gcc_config_arguments";
837 # Internationalization
839 VERSION="$gcc_version"
840 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
841 [Define to the name of the distribution.])
842 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
843 [Define to the version of the distribution.])
849 # Enable NLS support by default
851 [ --enable-nls use Native Language Support (default)],
854 # if cross compiling, disable NLS support.
855 # It's not worth the trouble, at least for now.
857 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
858 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
862 # if NLS is enabled, also enable check in po subdir
863 if test $enable_nls = yes; then
872 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
874 # Windows32 Registry support for specifying GCC installation paths.
875 AC_ARG_ENABLE(win32-registry,
876 [ --disable-win32-registry
877 Disable lookup of installation paths in the
878 Registry on Windows hosts.
879 --enable-win32-registry Enable registry lookup (default).
880 --enable-win32-registry=KEY
881 Use KEY instead of GCC version as the last portion
882 of the registry key.],,)
884 AC_MSG_CHECKING(whether windows registry support is requested)
885 if test x$enable_win32_registry != xno; then
886 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
887 [Define to 1 if installation paths should be looked up in Windows32
888 Registry. Ignored on non windows32 hosts.])
894 # Check if user specified a different registry key.
895 case x${enable_win32_registry} in
898 gcc_cv_win32_registry_key="$VERSION"
901 # no registry lookup.
902 gcc_cv_win32_registry_key=''
905 # user-specified key.
906 gcc_cv_win32_registry_key="$enable_win32_registry"
910 if test x$enable_win32_registry != xno; then
911 AC_MSG_CHECKING(registry key on windows hosts)
912 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
913 [Define to be the last portion of registry key on windows hosts.])
914 AC_MSG_RESULT($gcc_cv_win32_registry_key)
917 # Get an absolute path to the GCC top-level source directory
923 # Conditionalize the makefile for this host machine.
924 # Make-host contains the concatenation of all host makefile fragments
925 # [there can be more than one]. This file is built by configure.frag.
926 host_overrides=Make-host
928 for f in .. ${host_xmake_file}
930 if test -f ${srcdir}/config/$f
932 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
936 # Conditionalize the makefile for this target machine.
937 # Make-target contains the concatenation of all host makefile fragments
938 # [there can be more than one]. This file is built by configure.frag.
939 target_overrides=Make-target
941 for f in .. ${tmake_file}
943 if test -f ${srcdir}/config/$f
945 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
949 # If the host doesn't support symlinks, modify CC in
950 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
951 # Otherwise, we can use "CC=$(CC)".
953 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
955 cc_set_by_configure="\$(CC)"
956 quoted_cc_set_by_configure="\$(CC)"
957 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
960 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
962 symbolic_link="cp -p"
966 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
967 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
968 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
972 out_object_file=`basename $out_file .c`.o
975 for f in $tm_file; do
977 gansidecl.h | defaults.h )
978 tm_file_list="${tm_file_list} $f" ;;
979 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
984 for f in $host_xm_file; do
986 auto-host.h | gansidecl.h | defaults.h | hwint.h )
987 host_xm_file_list="${host_xm_file_list} $f" ;;
988 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
993 for f in $build_xm_file; do
995 auto-build.h | auto-host.h | gansidecl.h | defaults.h | hwint.h )
996 build_xm_file_list="${build_xm_file_list} $f" ;;
997 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1001 # Define macro CROSS_COMPILE in compilation
1002 # if this is a cross-compiler.
1003 # Also use all.cross instead of all.internal
1004 # and add cross-make to Makefile.
1005 cross_overrides="/dev/null"
1006 if test x$host != x$target
1008 cross_defines="CROSS=-DCROSS_COMPILE"
1009 cross_overrides="${topdir}/cross-make"
1012 # If this is a cross-compiler that does not
1013 # have its own set of headers then define
1016 # If this is using newlib, then define inhibit_libc in
1017 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1018 # libgcc.a, but that's OK because newlib should have its own version of
1021 if [test x$host != x$target] && [test x$with_headers = x]; then
1022 inhibit_libc=-Dinhibit_libc
1024 if [test x$with_newlib = xyes]; then
1025 inhibit_libc=-Dinhibit_libc
1028 AC_SUBST(inhibit_libc)
1030 # When building gcc with a cross-compiler, we need to fix a few things.
1031 # This must come after cross-make as we want all.build to override
1033 build_overrides="/dev/null"
1034 if test x$build != x$host
1036 build_overrides="${topdir}/build-make"
1039 # Expand extra_headers to include complete path.
1040 # This substitutes for lots of t-* files.
1042 if test "x$extra_headers" = x
1045 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1046 for file in $extra_headers;
1048 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1052 if test x$use_collect2 = xno; then
1056 # Add a definition of USE_COLLECT2 if system wants one.
1057 # Also tell toplev.c what to do.
1058 # This substitutes for lots of t-* files.
1059 if test x$use_collect2 = x
1064 will_use_collect2="collect2"
1065 maybe_use_collect2="-DUSE_COLLECT2"
1068 # If we have gas in the build tree, make a link to it.
1069 if test -f ../gas/Makefile; then
1070 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1073 # If we have nm in the build tree, make a link to it.
1074 if test -f ../binutils/Makefile; then
1075 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1078 # If we have ld in the build tree, make a link to it.
1079 if test -f ../ld/Makefile; then
1080 # if test x$use_collect2 = x; then
1081 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1083 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1087 # Figure out what assembler we will be using.
1088 AC_MSG_CHECKING(what assembler to use)
1090 gcc_cv_gas_major_version=
1091 gcc_cv_gas_minor_version=
1092 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1093 if test -x "$DEFAULT_ASSEMBLER"; then
1094 gcc_cv_as="$DEFAULT_ASSEMBLER"
1095 elif test -x "$AS"; then
1097 elif test -x as$host_exeext; then
1098 # Build using assembler in the current directory.
1099 gcc_cv_as=./as$host_exeext
1100 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1101 # Single tree build which includes gas.
1102 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1105 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1107 if test x$gcc_cv_gas_version != x; then
1112 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1113 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1117 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1119 # Search the same directories that the installed compiler will
1120 # search. Else we may find the wrong assembler and lose. If we
1121 # do not find a suitable assembler binary, then try the user's
1124 # Also note we have to check MD_EXEC_PREFIX before checking the
1125 # user's path. Unfortunately, there is no good way to get at the
1126 # value of MD_EXEC_PREFIX here. So we do a brute force search
1127 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1128 # to be fixed as part of the make/configure rewrite too.
1130 if test "x$exec_prefix" = xNONE; then
1131 if test "x$prefix" = xNONE; then
1132 test_prefix=/usr/local
1137 test_prefix=$exec_prefix
1140 # If the loop below does not find an assembler, then use whatever
1141 # one we can find in the users's path.
1145 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1146 $test_prefix/lib/gcc-lib/$target \
1147 /usr/lib/gcc/$target/$gcc_version \
1148 /usr/lib/gcc/$target \
1149 $test_prefix/$target/bin/$target/$gcc_version \
1150 $test_prefix/$target/bin \
1155 /bsd43/usr/lib/cmplrs/cc \
1156 /usr/cross64/usr/bin \
1157 /usr/lib/cmplrs/cc \
1158 /sysv/usr/lib/cmplrs/cc \
1159 /svr4/usr/lib/cmplrs/cc \
1162 for dir in $test_dirs; do
1163 if test -f $dir/as$host_exeext; then
1164 gcc_cv_as=$dir/as$host_exeext
1169 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1170 AC_MSG_RESULT("newly built gas")
1172 AC_MSG_RESULT($gcc_cv_as)
1175 # Figure out what nm we will be using.
1176 AC_MSG_CHECKING(what nm to use)
1177 if test -x nm$host_exeext; then
1178 gcc_cv_nm=./nm$host_exeext
1179 elif test x$host = x$target; then
1181 gcc_cv_nm=nm$host_exeext
1183 AC_MSG_RESULT($gcc_cv_nm)
1185 # Figure out what assembler alignment features are present.
1186 AC_MSG_CHECKING(assembler alignment features)
1187 gcc_cv_as_alignment_features=none
1188 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1189 # Gas version 2.6 and later support for .balign and .p2align.
1190 # bytes to skip when using .p2align.
1191 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1192 gcc_cv_as_alignment_features=".balign and .p2align"
1193 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1195 # Gas version 2.8 and later support specifying the maximum
1196 # bytes to skip when using .p2align.
1197 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1198 gcc_cv_as_alignment_features=".p2align including maximum skip"
1199 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1201 elif test x$gcc_cv_as != x; then
1202 # Check if we have .balign and .p2align
1203 echo ".balign 4" > conftest.s
1204 echo ".p2align 2" >> conftest.s
1205 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1206 gcc_cv_as_alignment_features=".balign and .p2align"
1207 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1209 rm -f conftest.s conftest.o
1210 # Check if specifying the maximum bytes to skip when
1211 # using .p2align is supported.
1212 echo ".p2align 4,,7" > conftest.s
1213 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1214 gcc_cv_as_alignment_features=".p2align including maximum skip"
1215 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1217 rm -f conftest.s conftest.o
1219 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1221 AC_MSG_CHECKING(assembler subsection support)
1222 gcc_cv_as_subsections=no
1223 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1224 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1225 gcc_cv_as_subsections="working .subsection -1"
1227 elif test x$gcc_cv_as != x; then
1228 # Check if we have .subsection
1229 echo ".subsection 1" > conftest.s
1230 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1231 gcc_cv_as_subsections=".subsection"
1232 if test x$gcc_cv_nm != x; then
1233 cat > conftest.s <<EOF
1234 conftest_label1: .word 0
1236 conftest_label2: .word 0
1239 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1240 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1241 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1242 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1245 gcc_cv_as_subsections="working .subsection -1"
1250 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1252 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1253 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1254 [Define if your assembler supports .subsection and .subsection -1 starts
1255 emitting at the beginning of your section.])
1257 AC_MSG_RESULT($gcc_cv_as_subsections)
1259 AC_MSG_CHECKING(assembler weak support)
1261 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1262 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1263 gcc_cv_as_weak="yes"
1265 elif test x$gcc_cv_as != x; then
1266 # Check if we have .weak
1267 echo " .weak foobar" > conftest.s
1268 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1269 gcc_cv_as_weak="yes"
1271 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1273 if test x"$gcc_cv_as_weak" = xyes; then
1274 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1276 AC_MSG_RESULT($gcc_cv_as_weak)
1278 AC_MSG_CHECKING(assembler hidden support)
1280 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1281 if test "$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
1282 gcc_cv_as_hidden="yes"
1284 elif test x$gcc_cv_as != x; then
1285 # Check if we have .hidden
1286 echo " .hidden foobar" > conftest.s
1287 echo "foobar:" >> conftest.s
1288 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1289 gcc_cv_as_hidden="yes"
1291 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1293 if test x"$gcc_cv_as_hidden" = xyes; then
1294 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1295 [Define if your assembler supports .hidden.])
1297 AC_MSG_RESULT($gcc_cv_as_hidden)
1301 AC_CACHE_CHECK([assembler .register pseudo-op support],
1302 gcc_cv_as_register_pseudo_op, [
1303 gcc_cv_as_register_pseudo_op=unknown
1304 if test x$gcc_cv_as != x; then
1305 # Check if we have .register
1306 echo ".register %g2, #scratch" > conftest.s
1307 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1308 gcc_cv_as_register_pseudo_op=yes
1310 gcc_cv_as_register_pseudo_op=no
1312 rm -f conftest.s conftest.o
1315 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1316 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1317 [Define if your assembler supports .register.])
1320 AC_CACHE_CHECK([assembler supports -relax],
1321 gcc_cv_as_relax_opt, [
1322 gcc_cv_as_relax_opt=unknown
1323 if test x$gcc_cv_as != x; then
1324 # Check if gas supports -relax
1325 echo ".text" > conftest.s
1326 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1327 gcc_cv_as_relax_opt=yes
1329 gcc_cv_as_relax_opt=no
1331 rm -f conftest.s conftest.o
1334 if test "x$gcc_cv_as_relax_opt" = xyes; then
1335 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1336 [Define if your assembler supports -relax option.])
1341 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1342 gcc_cv_as_flags64, [
1343 if test -n "$gcc_cv_as"; then
1344 echo ".xword foo" > conftest.s
1345 gcc_cv_as_flags64=no
1346 for flag in "-xarch=v9" "-64 -Av9"; do
1347 if $gcc_cv_as $flag -o conftest.o conftest.s \
1348 > /dev/null 2>&1; then
1349 gcc_cv_as_flags64=$flag
1353 rm -f conftest.s conftest.o
1355 if test "$gas" = yes; then
1356 gcc_cv_as_flags64="-64 -Av9"
1358 gcc_cv_as_flags64="-xarch=v9"
1362 if test "x$gcc_cv_as_flags64" = xno; then
1364 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1365 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1368 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1369 [Define if the assembler supports 64bit sparc.])
1372 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1376 if test "x$gcc_cv_as_flags64" != xno; then
1377 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1378 gcc_cv_as_offsetable_lo10, [
1379 gcc_cv_as_offsetable_lo10=unknown
1380 if test "x$gcc_cv_as" != x; then
1381 # Check if assembler has offsetable %lo()
1382 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1383 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1384 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1386 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1387 > /dev/null 2>&1; then
1388 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1389 gcc_cv_as_offsetable_lo10=no
1391 gcc_cv_as_offsetable_lo10=yes
1394 gcc_cv_as_offsetable_lo10=no
1396 rm -f conftest.s conftest.o conftest1.s conftest1.o
1399 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1400 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1401 [Define if your assembler supports offsetable %lo().])
1409 AC_MSG_CHECKING(assembler instructions)
1410 gcc_cv_as_instructions=
1411 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1412 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1413 gcc_cv_as_instructions="filds fists"
1415 elif test x$gcc_cv_as != x; then
1416 set "filds fists" "filds mem; fists mem"
1419 echo "$2" > conftest.s
1420 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1421 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1425 rm -f conftest.s conftest.o
1427 if test x"$gcc_cv_as_instructions" != x; then
1428 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1430 AC_MSG_RESULT($gcc_cv_as_instructions)
1434 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1435 gcc_cv_as_dwarf2_debug_line=no
1436 # ??? Not all targets support dwarf2 debug_line, even within a version
1437 # of gas. Moreover, we need to emit a valid instruction to trigger any
1438 # info to the output file. So, as supported targets are added to gas 2.11,
1439 # add some instruction here to (also) show we expect this might work.
1440 # ??? Once 2.11 is released, probably need to add first known working
1441 # version to the per-target configury.
1443 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-*)
1450 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1452 if test "$gcc_cv_gas_major_version" -eq 2 \
1453 -a "$gcc_cv_gas_minor_version" -ge 11 \
1454 -o "$gcc_cv_gas_major_version" -gt 2 \
1455 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1456 && test x"$insn" != x ; then
1457 gcc_cv_as_dwarf2_debug_line="yes"
1459 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1460 echo ' .file 0 "conftest.s"' > conftest.s
1461 echo ' .loc 0 3 0' >> conftest.s
1462 echo " $insn" >> conftest.s
1463 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1464 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1465 gcc_cv_as_dwarf2_debug_line="yes"
1467 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1469 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1470 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1471 [Define if your assembler supports dwarf2 .file/.loc directives.])
1473 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1475 # Figure out what language subdirectories are present.
1476 # Look if the user specified --enable-languages="..."; if not, use
1477 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1479 if test x"${enable_languages+set}" != xset; then
1480 if test x"${LANGUAGES+set}" = xset; then
1481 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1483 enable_languages=all
1486 if test x"${enable_languages}" = x; then
1487 AC_MSG_ERROR([--enable-languages needs at least one argument])
1491 for lang in ${srcdir}/*/config-lang.in ..
1495 # The odd quoting in the next line works around
1496 # an apparent bug in bash 1.12 on linux.
1498 ${srcdir}/[*]/config-lang.in) ;;
1500 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1501 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1502 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1503 if test "x$lang_alias" = x
1505 echo "$lang doesn't set \$language." 1>&2
1508 case ${build_by_default},${enable_languages}, in
1509 *,$lang_alias,*) add_this_lang=yes ;;
1510 no,*) add_this_lang=no ;;
1511 *,all,*) add_this_lang=yes ;;
1512 *) add_this_lang=no ;;
1514 if test x"${add_this_lang}" = xyes; then
1516 ${srcdir}/ada/config-lang.in)
1517 if test x$gnat = xyes ; then
1518 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1522 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1531 # Make gthr-default.h if we have a thread file.
1533 if test $thread_file != single; then
1534 rm -f gthr-default.h
1535 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1536 gthread_flags=-DHAVE_GTHR_DEFAULT
1538 AC_SUBST(gthread_flags)
1540 # Find out what GC implementation we want, or may, use.
1542 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1543 with the compiler.],
1549 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1554 echo "Using $GGC for garbage collection."
1556 # Use the system's zlib library.
1558 zlibinc="-I\$(srcdir)/../zlib"
1559 AC_ARG_WITH(system-zlib,
1560 [ --with-system-zlib use installed libz],
1567 # Build a new-abi (c++) system
1568 AC_ARG_ENABLE(new-gxx-abi,
1569 [ --enable-new-gxx-abi
1570 select the new abi for g++. You must select an ABI
1571 at configuration time, so that the correct runtime
1572 support is built. You cannot mix ABIs.],
1574 enable_new_gxx_abi=yes)
1576 if test x$enable_new_gxx_abi = xyes; then
1577 AC_DEFINE(ENABLE_NEW_GXX_ABI, 1,
1578 [Define if you want to always select the new-abi for g++.])
1579 GXX_ABI_FLAG='-fnew-abi'
1583 AC_SUBST(GXX_ABI_FLAG)
1585 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, 1,
1586 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1588 dnl Very limited version of automake's enable-maintainer-mode
1590 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1591 dnl maintainer-mode is disabled by default
1592 AC_ARG_ENABLE(maintainer-mode,
1593 [ --enable-maintainer-mode enable make rules and dependencies not useful
1594 (and sometimes confusing) to the casual installer],
1595 maintainer_mode=$enableval,
1598 AC_MSG_RESULT($maintainer_mode)
1600 if test "$maintainer_mode" = "yes"; then
1607 # Make empty files to contain the specs and options for each language.
1608 # Then add #include lines to for a compiler that has specs and/or options.
1613 rm -f specs.h options.h gencheck.h
1614 touch specs.h options.h gencheck.h
1615 for subdir in . $subdirs
1617 if test -f $srcdir/$subdir/lang-specs.h; then
1618 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1619 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1621 if test -f $srcdir/$subdir/lang-options.h; then
1622 echo "#include \"$subdir/lang-options.h\"" >>options.h
1623 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1625 if test -f $srcdir/$subdir/$subdir-tree.def; then
1626 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1627 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1631 # These (without "all_") are set in each config-lang.in.
1632 # `language' must be a single word so is spelled singularly.
1638 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1639 # List of language makefile fragments.
1644 # Add the language fragments.
1645 # Languages are added via two mechanisms. Some information must be
1646 # recorded in makefile variables, these are defined in config-lang.in.
1647 # We accumulate them and plug them into the main Makefile.
1648 # The other mechanism is a set of hooks for each of the main targets
1649 # like `clean', `install', etc.
1651 language_fragments="Make-lang"
1652 language_hooks="Make-hooks"
1654 for s in .. $subdirs
1666 . ${srcdir}/$s/config-lang.in
1667 if test "x$language" = x
1669 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1672 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1673 if test -f ${srcdir}/$s/Makefile.in
1674 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1676 all_languages="$all_languages $language"
1677 if test "x$boot_language" = xyes
1679 all_boot_languages="$all_boot_languages $language"
1681 all_compilers="$all_compilers $compilers"
1682 all_stagestuff="$all_stagestuff $stagestuff"
1683 all_diff_excludes="$all_diff_excludes $diff_excludes"
1684 all_headers="$all_headers $headers"
1685 all_outputs="$all_outputs $outputs"
1686 all_lib2funcs="$all_lib2funcs $lib2funcs"
1690 # Since we can't use `::' targets, we link each language in
1691 # with a set of hooks, reached indirectly via lang.${target}.
1695 target_list="all.build all.cross start.encap rest.encap \
1697 install-normal install-common install-info install-man \
1699 mostlyclean clean distclean extraclean maintainer-clean \
1700 stage1 stage2 stage3 stage4"
1701 for t in $target_list
1704 for lang in .. $all_languages
1706 if test $lang != ".."; then
1710 echo "lang.$t: $x" >> Make-hooks
1713 # If we're not building in srcdir, create .gdbinit.
1715 if test ! -f Makefile.in; then
1716 echo "dir ." > .gdbinit
1717 echo "dir ${srcdir}" >> .gdbinit
1718 if test x$gdb_needs_out_file_path = xyes
1720 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1722 if test "x$subdirs" != x; then
1725 echo "dir ${srcdir}/$s" >> .gdbinit
1728 echo "source ${srcdir}/.gdbinit" >> .gdbinit
1731 # Define variables host_canonical and build_canonical
1732 # because some Cygnus local changes in the Makefile depend on them.
1733 build_canonical=${build}
1734 host_canonical=${host}
1736 if test "${host}" != "${target}" ; then
1737 target_subdir=${target}/
1739 AC_SUBST(build_canonical)
1740 AC_SUBST(host_canonical)
1741 AC_SUBST(target_subdir)
1743 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1744 # absolute path for gcc_tooldir based on inserting the number of up-directory
1745 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1746 # $(libsubdir)/@(unlibsubdir) based path.
1747 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1748 # make and thus we'd get different behavior depending on where we built the
1750 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1751 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1753 changequote(<<, >>)dnl
1754 # An explanation of the sed strings:
1755 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1756 # -e 's|/$||' match a trailing forward slash and eliminates it
1757 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1758 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1760 # (*) Note this pattern overwrites the first character of the string
1761 # with a forward slash if one is not already present. This is not a
1762 # problem because the exact names of the sub-directories concerned is
1763 # unimportant, just the number of them matters.
1765 # The practical upshot of these patterns is like this:
1767 # prefix exec_prefix result
1768 # ------ ----------- ------
1770 # /foo/ /foo/bar ../
1771 # /foo /foo/bar/ ../
1772 # /foo/ /foo/bar/ ../
1773 # /foo /foo/bar/ugg ../../
1776 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1777 changequote([, ])dnl
1779 AC_SUBST(gcc_tooldir)
1782 # Find a directory in which to install a shared libgcc.
1784 AC_ARG_ENABLE(version-specific-runtime-libs,
1785 [ --enable-version-specific-runtime-libs Specify that runtime libraries shou
1786 ld be installed in a compiler-specific directory ])
1788 AC_ARG_WITH(slibdir,
1789 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
1790 slibdir="$with_slibdir",
1791 if test "${enable_version_specific_runtime_libs+set}" = set; then
1792 slibdir='$(libsubdir)'
1793 elif test "$host" != "$target"; then
1794 slibdir='$(build_tooldir)/lib'
1800 # Nothing to do for FLOAT_H, float_format already handled.
1804 # Process the language and host/target makefile fragments.
1805 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1807 # Substitute configuration variables
1809 AC_SUBST(all_boot_languages)
1810 AC_SUBST(all_compilers)
1811 AC_SUBST(all_diff_excludes)
1812 AC_SUBST(all_headers)
1813 AC_SUBST(all_lang_makefiles)
1814 AC_SUBST(all_languages)
1815 AC_SUBST(all_lib2funcs)
1816 AC_SUBST(all_stagestuff)
1817 AC_SUBST(build_exeext)
1818 AC_SUBST(build_install_headers_dir)
1819 AC_SUBST(build_xm_file_list)
1820 AC_SUBST(cc_set_by_configure)
1821 AC_SUBST(quoted_cc_set_by_configure)
1822 AC_SUBST(cpp_install_dir)
1823 AC_SUBST(dep_host_xmake_file)
1824 AC_SUBST(dep_tmake_file)
1825 AC_SUBST(extra_c_flags)
1826 AC_SUBST(extra_headers_list)
1827 AC_SUBST(extra_objs)
1828 AC_SUBST(extra_parts)
1829 AC_SUBST(extra_passes)
1830 AC_SUBST(extra_programs)
1831 AC_SUBST(float_h_file)
1832 AC_SUBST(gcc_config_arguments)
1833 AC_SUBST(gcc_gxx_include_dir)
1834 AC_SUBST(libstdcxx_incdir)
1835 AC_SUBST(gcc_version)
1836 AC_SUBST(gcc_version_full)
1837 AC_SUBST(gcc_version_trigger)
1838 AC_SUBST(host_exeext)
1839 AC_SUBST(host_extra_gcc_objs)
1840 AC_SUBST(host_xm_file_list)
1842 AC_SUBST(lang_options_files)
1843 AC_SUBST(lang_specs_files)
1844 AC_SUBST(lang_tree_files)
1845 AC_SUBST(local_prefix)
1846 AC_SUBST(maybe_use_collect2)
1848 AC_SUBST(objc_boehm_gc)
1850 AC_SUBST(out_object_file)
1851 AC_SUBST(stage_prefix_set_by_configure)
1852 AC_SUBST(symbolic_link)
1853 AC_SUBST(thread_file)
1854 AC_SUBST(tm_file_list)
1855 AC_SUBST(will_use_collect2)
1856 AC_SUBST(c_target_objs)
1857 AC_SUBST(cxx_target_objs)
1860 AC_SUBST_FILE(target_overrides)
1861 AC_SUBST_FILE(host_overrides)
1862 AC_SUBST(cross_defines)
1863 AC_SUBST_FILE(cross_overrides)
1864 AC_SUBST_FILE(build_overrides)
1865 AC_SUBST_FILE(language_fragments)
1866 AC_SUBST_FILE(language_hooks)
1868 # Echo that links are built
1869 if test x$host = x$target
1877 if test x$host != x$build
1879 str3=" on a $build system"
1882 if test "x$str2" != x || test "x$str3" != x
1887 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1889 if test "x$str2" != x || test "x$str3" != x
1891 echo " ${str2}${str3}." 1>&2
1894 # Truncate the target if necessary
1895 if test x$host_truncate_target != x; then
1896 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1899 # Configure the subdirectories
1900 # AC_CONFIG_SUBDIRS($subdirs)
1902 # Create the Makefile
1903 # and configure language subdirectories
1904 AC_OUTPUT($all_outputs,
1906 case x$CONFIG_HEADERS in
1907 xauto-host.h:config.in)
1910 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1911 # bootstrapping and the installation procedure can still use
1912 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
1913 # FLAGS_TO_PASS has been modified to solve the problem there.
1914 # This is virtually a duplicate of what happens in configure.lang; we do
1915 # an extra check to make sure this only happens if ln -s can be used.
1916 if test "$symbolic_link" = "ln -s"; then
1917 for d in .. ${subdirs} ; do
1918 if test $d != ..; then
1921 for t in stage1 stage2 stage3 stage4 include
1924 $symbolic_link ../$t $t 2>/dev/null
1930 # Avoid having to add intl to our include paths.
1931 if test -f intl/libintl.h; then
1932 echo creating libintl.h
1933 echo '#include "intl/libintl.h"' >libintl.h
1940 target_alias='${target_alias}'
1942 subdirs='${subdirs}'
1943 symbolic_link='${symbolic_link}'
1944 program_transform_set='${program_transform_set}'
1945 program_transform_name='${program_transform_name}'
1946 dep_host_xmake_file='${dep_host_xmake_file}'
1947 host_xmake_file='${host_xmake_file}'
1948 dep_tmake_file='${dep_tmake_file}'
1949 tmake_file='${tmake_file}'
1950 thread_file='${thread_file}'
1951 gcc_config_arguments='${gcc_config_arguments}'
1952 gcc_version='${gcc_version}'
1953 gcc_version_full='${gcc_version_full}'
1954 gcc_version_trigger='${gcc_version_trigger}'
1955 local_prefix='${local_prefix}'
1956 build_install_headers_dir='${build_install_headers_dir}'
1957 build_exeext='${build_exeext}'
1958 host_exeext='${host_exeext}'
1959 out_file='${out_file}'
1960 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
1961 SET_MAKE='${SET_MAKE}'
1962 target_list='${target_list}'
1963 target_overrides='${target_overrides}'
1964 host_overrides='${host_overrides}'
1965 cross_defines='${cross_defines}'
1966 cross_overrides='${cross_overrides}'
1967 build_overrides='${build_overrides}'
1968 cpp_install_dir='${cpp_install_dir}'