2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
6 #This file is part of GCC.
8 #GCC is free software; you can redistribute it and/or modify it under
9 #the terms of the GNU General Public License as published by the Free
10 #Software Foundation; either version 2, or (at your option) any later
13 #GCC is distributed in the hope that it will be useful, but WITHOUT
14 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 #You should have received a copy of the GNU General Public License
19 #along with GCC; see the file COPYING. If not, write to the Free
20 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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 # Determine whether or not multilibs are enabled.
180 AC_ARG_ENABLE(multilib,
181 [ --enable-multilib enable library support for multiple ABIs],
182 [], [enable_multilib=yes])
183 AC_SUBST(enable_multilib)
185 # Enable expensive internal checks
186 AC_ARG_ENABLE(checking,
187 [ --enable-checking[=LIST]
188 enable expensive run-time checks. With LIST,
189 enable only specific categories of checks.
190 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
191 default is misc,tree,gc,rtlflag],
197 ac_gc_always_collect=
198 case "${enableval}" in
199 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
200 ac_rtlflag_checking=1 ;;
202 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
203 set fnord $enableval; shift
208 misc) ac_checking=1 ;;
209 tree) ac_tree_checking=1 ;;
210 rtlflag) ac_rtlflag_checking=1 ;;
211 rtl) ac_rtl_checking=1 ;;
212 gc) ac_gc_checking=1 ;;
213 gcac) ac_gc_always_collect=1 ;;
214 *) AC_MSG_ERROR(unknown check category $check) ;;
220 # Enable some checks by default for development versions of GCC
221 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
222 if test x$ac_checking != x ; then
223 AC_DEFINE(ENABLE_CHECKING, 1,
224 [Define if you want more run-time sanity checks. This one gets a grab
225 bag of miscellaneous but relatively cheap checks.])
227 if test x$ac_tree_checking != x ; then
228 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
229 [Define if you want all operations on trees (the basic data
230 structure of the front ends) to be checked for dynamic type safety
231 at runtime. This is moderately expensive.])
233 if test x$ac_rtl_checking != x ; then
234 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
235 [Define if you want all operations on RTL (the basic data structure
236 of the optimizer and back end) to be checked for dynamic type safety
237 at runtime. This is quite expensive.])
239 if test x$ac_rtlflag_checking != x ; then
240 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
241 [Define if you want RTL flag accesses to be checked against the RTL
242 codes that are supported for each access macro. This is relatively
245 if test x$ac_gc_checking != x ; then
246 AC_DEFINE(ENABLE_GC_CHECKING, 1,
247 [Define if you want the garbage collector to do object poisoning and
248 other memory allocation checks. This is quite expensive.])
250 if test x$ac_gc_always_collect != x ; then
251 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
252 [Define if you want the garbage collector to operate in maximally
253 paranoid mode, validating the entire heap and collecting garbage at
254 every opportunity. This is extremely expensive.])
259 [ --disable-cpp don't provide a user-visible C preprocessor],
260 [], [enable_cpp=yes])
262 AC_ARG_WITH(cpp_install_dir,
263 [ --with-cpp-install-dir=DIR
264 install the user visible C preprocessor in DIR
265 (relative to PREFIX) as well as PREFIX/bin],
266 [if test x$withval = xyes; then
267 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
268 elif test x$withval != xno; then
269 cpp_install_dir=$withval
272 # Enable Multibyte Characters for C/C++
273 AC_ARG_ENABLE(c-mbchar,
274 [ --enable-c-mbchar enable multibyte characters for C and C++],
275 if test x$enable_c_mbchar != xno; then
276 AC_DEFINE(MULTIBYTE_CHARS, 1,
277 [Define if you want the C and C++ compilers to support multibyte
278 character sets for source code.])
282 # Pass with no value to take the default
283 # Pass with a value to specify a thread package
284 AC_ARG_ENABLE(threads,
285 [ --enable-threads enable thread usage for target GCC
286 --enable-threads=LIB use LIB thread package for target GCC],,
289 enable_threads_flag=$enable_threads
290 # Check if a valid thread package
291 case x${enable_threads_flag} in
294 target_thread_file='single'
298 target_thread_file=''
300 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
301 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
302 target_thread_file=$enable_threads_flag
305 echo "$enable_threads is an unknown thread package" 1>&2
310 AC_ARG_ENABLE(objc-gc,
311 [ --enable-objc-gc enable the use of Boehm's garbage collector with
312 the GNU Objective-C runtime],
313 if test x$enable_objc_gc = xno; then
321 [ --with-dwarf2 force the default debug format to be DWARF 2],
322 dwarf2="$with_dwarf2",
325 AC_ARG_ENABLE(shared,
326 [ --disable-shared don't provide a shared libgcc],
328 case $enable_shared in
332 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
333 for pkg in $enableval; do
334 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
341 ], [enable_shared=yes])
342 AC_SUBST(enable_shared)
344 # Determine the host, build, and target systems
347 # Set program_transform_name
350 # Find the native compiler
353 # autoconf is lame and doesn't give us any substitution variable for this.
354 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
355 NO_MINUS_C_MINUS_O=yes
357 OUTPUT_OPTION='-o $@'
359 AC_SUBST(NO_MINUS_C_MINUS_O)
360 AC_SUBST(OUTPUT_OPTION)
362 # See if GNAT has been installed
365 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
366 ac_cv_prog_cc_no_long_long,
367 [save_CFLAGS="$CFLAGS"
368 CFLAGS="-Wno-long-long"
369 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
370 ac_cv_prog_cc_no_long_long=no)
371 CFLAGS="$save_CFLAGS"])
373 if test x$have_gnat != xno ; then
374 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
375 ac_cv_prog_adac_no_long_long,
376 [cat >conftest.adb <<EOF
377 procedure conftest is begin null; end conftest;
379 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
380 ac_cv_prog_adac_no_long_long=yes
382 ac_cv_prog_adac_no_long_long=no
386 ac_cv_prog_adac_no_long_long=yes
390 if test $ac_cv_prog_cc_no_long_long = yes && \
391 test $ac_cv_prog_adac_no_long_long = yes ; then
392 strict1_warn="-pedantic -Wno-long-long"
394 AC_SUBST(strict1_warn)
404 # sizeof(char) is 1 by definition.
405 gcc_AC_COMPILE_CHECK_SIZEOF(short)
406 gcc_AC_COMPILE_CHECK_SIZEOF(int)
407 gcc_AC_COMPILE_CHECK_SIZEOF(long)
408 if test $ac_cv_c_long_long = yes; then
409 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
411 if test $ac_cv_c___int64 = yes; then
412 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
417 # If the native compiler is GCC, we can enable warnings even in stage1.
418 # That's useful for people building cross-compilers, or just running a
421 if test "x$GCC" = "xyes"; then
422 warn_cflags='$(GCC_WARN_CFLAGS)'
424 AC_SUBST(warn_cflags)
426 # Stage specific cflags for build.
432 stage1_cflags="-Wa,-J"
438 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
439 # sources; use -no-cpp-precomp to get to GNU cpp.
440 # Apple's GCC has bugs in designated initializer handling, so disable
442 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
445 AC_SUBST(stage1_cflags)
449 AC_MSG_CHECKING([whether a default assembler was specified])
450 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
451 if test x"$gas_flag" = x"no"; then
452 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
454 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
460 AC_MSG_CHECKING([whether a default linker was specified])
461 if test x"${DEFAULT_LINKER+set}" = x"set"; then
462 if test x"$gnu_ld_flag" = x"no"; then
463 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
465 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
471 AC_MSG_CHECKING(for GNU C library)
472 AC_CACHE_VAL(gcc_cv_glibc,
474 [#include <features.h>],[
475 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
476 #error Not a GNU C library system
480 AC_MSG_RESULT($gcc_cv_glibc)
481 if test $gcc_cv_glibc = yes; then
482 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
485 # Find some useful tools
494 gcc_AC_HEADER_STDBOOL
497 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
498 fcntl.h unistd.h sys/file.h sys/time.h \
499 sys/resource.h sys/param.h sys/times.h sys/stat.h \
500 direct.h malloc.h langinfo.h)
502 # Check for thread headers.
503 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
504 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
506 # These tests can't be done till we know if we have limits.h.
508 gcc_AC_C_COMPILE_ENDIAN
509 gcc_AC_C_FLOAT_FORMAT
511 # See if we have the mktemp command.
512 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
514 # Do we have a single-tree copy of texinfo?
515 if test -f $srcdir/../texinfo/Makefile.in; then
516 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
517 gcc_cv_prog_makeinfo_modern=yes
518 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
520 # See if makeinfo has been installed and is modern enough
521 # that we can use it.
522 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
523 [GNU texinfo.* \([0-9][0-9.]*\)],
527 if test $gcc_cv_prog_makeinfo_modern = no; then
529 *** Makeinfo is missing or too old.
530 *** Info documentation will not be built.])
533 BUILD_INFO=info AC_SUBST(BUILD_INFO)
536 # Is pod2man recent enough to regenerate manpages?
537 AC_MSG_CHECKING([for recent Pod::Man])
538 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
540 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
547 dnl Don't use AC_PROG_LEX; we insist on flex.
548 dnl LEXLIB is not useful in gcc.
549 if test -f $srcdir/../flex/skel.c; then
550 FLEX='$(objdir)/../flex/flex'
552 AC_CHECK_PROG(FLEX, flex, flex, false)
556 # The -L switch is so bison can find its skeleton file.
557 if test -f $srcdir/../bison/bison.simple; then
558 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
560 AC_CHECK_PROG(BISON, bison, bison, false)
563 # These libraries may be used by collect2.
564 # We may need a special search path to get them linked.
565 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
567 for libs in '' -lld -lmld \
568 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
569 '-L/usr/lib/cmplrs/cc3.11 -lmld'
572 AC_TRY_LINK_FUNC(ldopen,
573 [gcc_cv_collect2_libs="$libs"; break])
576 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
577 case $gcc_cv_collect2_libs in
579 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
581 AC_SUBST(COLLECT2_LIBS)
583 # When building Ada code on Alpha, we need exc_resume which is usually in
584 # -lexc. So test for it.
587 AC_SEARCH_LIBS(exc_resume, exc)
590 AC_SUBST(GNAT_LIBEXC)
592 # See if the stage1 system preprocessor understands the ANSI C
593 # preprocessor stringification operator. (Used by symcat.h.)
596 # Use <inttypes.h> only if it exists,
597 # doesn't clash with <sys/types.h>, and declares intmax_t.
598 AC_MSG_CHECKING(for inttypes.h)
599 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
601 [#include <sys/types.h>
602 #include <inttypes.h>],
604 [gcc_cv_header_inttypes_h=yes],
605 gcc_cv_header_inttypes_h=no)])
606 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
607 if test $gcc_cv_header_inttypes_h = yes; then
608 AC_DEFINE(HAVE_INTTYPES_H, 1,
609 [Define if you have a working <inttypes.h> header file.])
612 dnl Disabled until we have a complete test for buggy enum bitfields.
613 dnl gcc_AC_C_ENUM_BF_UNSIGNED
615 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
616 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
617 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
620 AC_CHECK_TYPE(ssize_t, int)
622 # Try to determine the array type of the second argument of getgroups
623 # for the target system (int or gid_t).
625 if test "${target}" = "${build}"; then
626 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
629 # This condition may need some tweaking. It should include all
630 # targets where the array type of the second argument of getgroups
631 # is int and the type of gid_t is not equivalent to int.
632 *-*-sunos* | *-*-ultrix*)
633 TARGET_GETGROUPS_T=int
636 TARGET_GETGROUPS_T=gid_t
640 AC_SUBST(TARGET_GETGROUPS_T)
642 gcc_AC_FUNC_PRINTF_PTR
647 *** UWIN may not be used as a host platform because
648 *** linking with posix.dll is not allowed by the GNU GPL])
651 # Under VMS, vfork works very different than on Unix. The standard test
652 # won't work, and it isn't easily adaptable. It makes more sense to
654 ac_cv_func_vfork_works=yes
658 AC_FUNC_MMAP_ANYWHERE
663 # We will need to find libiberty.h and ansidecl.h
664 saved_CFLAGS="$CFLAGS"
665 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
666 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
667 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
668 fprintf_unlocked strstr errno \
669 malloc realloc calloc free basename getopt clock, , ,[
670 #include "ansidecl.h"
671 #include "system.h"])
673 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
674 #include "ansidecl.h"
676 #ifdef HAVE_SYS_RESOURCE_H
677 #include <sys/resource.h>
681 gcc_AC_CHECK_DECLS(times, , ,[
682 #include "ansidecl.h"
684 #ifdef HAVE_SYS_TIMES_H
685 #include <sys/times.h>
689 # More time-related stuff.
690 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
692 #include "ansidecl.h"
694 #ifdef HAVE_SYS_TIMES_H
695 #include <sys/times.h>
697 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
698 if test $ac_cv_struct_tms = yes; then
699 AC_DEFINE(HAVE_STRUCT_TMS, 1,
700 [Define if <sys/times.h> defines struct tms.])
703 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
704 # revisit after autoconf 2.50.
705 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
707 #include "ansidecl.h"
709 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
710 if test $gcc_cv_type_clock_t = yes; then
711 AC_DEFINE(HAVE_CLOCK_T, 1,
712 [Define if <time.h> defines clock_t.])
715 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
716 CFLAGS="$saved_CFLAGS"
718 # mkdir takes a single argument on some systems.
719 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
729 build_install_headers_dir=install-headers-tar
734 host_truncate_target=
737 # Decode the host machine, then the target machine.
738 # For the host machine, we save the xm_file variable as host_xm_file;
739 # then we decode the target machine and forget everything else
740 # that came from the host machine.
741 for machine in $build $host $target; do
742 . ${srcdir}/config.gcc
745 extra_objs="${host_extra_objs} ${extra_objs}"
747 # Default the target-machine variables that were not explicitly set.
748 if test x"$tm_file" = x
749 then tm_file=$cpu_type/$cpu_type.h; fi
751 if test x"$extra_headers" = x
752 then extra_headers=; fi
754 if test x$md_file = x
755 then md_file=$cpu_type/$cpu_type.md; fi
757 if test x$out_file = x
758 then out_file=$cpu_type/$cpu_type.c; fi
760 if test x"$tmake_file" = x
761 then tmake_file=$cpu_type/t-$cpu_type
764 if test x"$dwarf2" = xyes
765 then tm_file="$tm_file tm-dwarf2.h"
768 if test x$float_format = x
769 then float_format=i64
772 if test $float_format = none
773 then float_h_file=Makefile.in
774 else float_h_file=float-$float_format.h
777 # Handle cpp installation.
778 if test x$enable_cpp != xno
780 tmake_file="$tmake_file t-install-cpp"
783 # Say what files are being used for the output code and MD file.
784 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
785 echo "Using \`$srcdir/config/$md_file' as machine description file."
787 # If any of the xm_file variables contain nonexistent files, warn
788 # about them and drop them.
791 for x in $build_xm_file; do
792 if test -f $srcdir/config/$x
794 else AC_MSG_WARN($srcdir/config/$x does not exist.)
800 for x in $host_xm_file; do
801 if test -f $srcdir/config/$x
803 else AC_MSG_WARN($srcdir/config/$x does not exist.)
809 for x in $xm_file; do
810 if test -f $srcdir/config/$x
812 else AC_MSG_WARN($srcdir/config/$x does not exist.)
818 for f in $tm_file; do
821 if test $count = ax; then
822 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
824 echo "Using the following target machine macro files:"
825 for f in $tm_file; do
826 echo " $srcdir/config/$f"
831 for f in $host_xm_file; do
834 if test $count = a; then
836 elif test $count = ax; then
837 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
839 echo "Using the following host machine macro files:"
840 for f in $host_xm_file; do
841 echo " $srcdir/config/$f"
845 if test "$host_xm_file" != "$build_xm_file"; then
847 for f in $build_xm_file; do
850 if test $count = a; then
852 elif test $count = ax; then
853 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
855 echo "Using the following build machine macro files:"
856 for f in $build_xm_file; do
857 echo " $srcdir/config/$f"
862 if test x$thread_file = x; then
863 if test x$target_thread_file != x; then
864 thread_file=$target_thread_file
870 # auto-host.h is the file containing items generated by autoconf and is
871 # the first file included by config.h.
872 # If host=build, it is correct to have hconfig include auto-host.h
873 # as well. If host!=build, we are in error and need to do more
874 # work to find out the build config parameters.
875 if test x$host = x$build
877 build_auto=auto-host.h
880 # We create a subdir, then run autoconf in the subdir.
881 # To prevent recursion we set host and build for the new
882 # invocation of configure to the build for this invocation
889 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
890 *) realsrcdir=../${srcdir};;
892 saved_CFLAGS="${CFLAGS}"
893 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
894 ${realsrcdir}/configure \
895 --target=$target_alias --host=$build_alias --build=$build_alias
896 CFLAGS="${saved_CFLAGS}"
898 # We just finished tests for the build machine, so rename
899 # the file auto-build.h in the gcc directory.
900 mv auto-host.h ../auto-build.h
903 build_auto=auto-build.h
908 tm_file="${tm_file} defaults.h"
909 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
910 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
911 xm_file="ansidecl.h ${xm_file} ${tm_file}"
913 # Truncate the target if necessary
914 if test x$host_truncate_target != x; then
915 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
918 # Get the version trigger filename from the toplevel
919 if test "${with_gcc_version_trigger+set}" = set; then
920 gcc_version_trigger=$with_gcc_version_trigger
922 gcc_version_trigger=${srcdir}/version.c
925 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
926 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
928 # Compile in configure arguments.
929 if test -f configargs.h ; then
930 # Being re-configured.
931 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
932 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
934 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
936 cat > configargs.h <<EOF
937 /* Generated automatically. */
938 static const char configuration_arguments[] = "$gcc_config_arguments";
939 static const char thread_model[] = "$thread_file";
943 # Internationalization
945 VERSION="$gcc_version"
949 # Enable NLS support by default
951 [ --enable-nls use Native Language Support (default)],
954 # if cross compiling, disable NLS support.
955 # It's not worth the trouble, at least for now.
957 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
958 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
964 # Windows32 Registry support for specifying GCC installation paths.
965 AC_ARG_ENABLE(win32-registry,
966 [ --disable-win32-registry
967 disable lookup of installation paths in the
968 Registry on Windows hosts
969 --enable-win32-registry enable registry lookup (default)
970 --enable-win32-registry=KEY
971 use KEY instead of GCC version as the last portion
972 of the registry key],,)
974 win32 | pe | cygwin* | mingw32* | uwin*)
975 AC_MSG_CHECKING(whether windows registry support is requested)
976 if test "x$enable_win32_registry" != xno; then
977 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
978 [Define to 1 if installation paths should be looked up in Windows32
979 Registry. Ignored on non windows32 hosts.])
981 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
986 # Check if user specified a different registry key.
987 case "x${enable_win32_registry}" in
990 gcc_cv_win32_registry_key="$VERSION"
993 # no registry lookup.
994 gcc_cv_win32_registry_key=''
997 # user-specified key.
998 gcc_cv_win32_registry_key="$enable_win32_registry"
1002 if test "x$enable_win32_registry" != xno; then
1003 AC_MSG_CHECKING(registry key on windows hosts)
1004 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1005 [Define to be the last portion of registry key on windows hosts.])
1006 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1011 # Get an absolute path to the GCC top-level source directory
1012 holddir=`${PWDCMD-pwd}`
1014 topdir=`${PWDCMD-pwd}`
1017 # Conditionalize the makefile for this host machine.
1018 # Make-host contains the concatenation of all host makefile fragments
1019 # [there can be more than one]. This file is built by configure.frag.
1020 host_overrides=Make-host
1021 dep_host_xmake_file=
1022 for f in .. ${host_xmake_file}
1024 if test -f ${srcdir}/config/$f
1026 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1030 # Conditionalize the makefile for this target machine.
1031 # Make-target contains the concatenation of all host makefile fragments
1032 # [there can be more than one]. This file is built by configure.frag.
1033 target_overrides=Make-target
1035 for f in .. ${tmake_file}
1037 if test -f ${srcdir}/config/$f
1039 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1043 # If the host doesn't support symlinks, modify CC in
1044 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1045 # Otherwise, we can use "CC=$(CC)".
1047 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1049 cc_set_by_configure="\$(CC)"
1050 quoted_cc_set_by_configure="\$(CC)"
1051 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1052 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1055 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1057 symbolic_link="cp -p"
1061 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1062 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1063 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1064 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1068 out_object_file=`basename $out_file .c`.o
1071 for f in $tm_file; do
1074 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1076 tm_file_list="${tm_file_list} $f" ;;
1077 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1082 for f in $tm_p_file; do
1083 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1087 for f in $host_xm_file; do
1090 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1091 auto-host.h | defaults.h )
1092 host_xm_file_list="${host_xm_file_list} $f" ;;
1093 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1098 for f in $build_xm_file; do
1101 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1102 auto-build.h | auto-host.h | defaults.h )
1103 build_xm_file_list="${build_xm_file_list} $f" ;;
1104 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1108 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1109 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1110 CROSS= AC_SUBST(CROSS)
1111 ALL=all.internal AC_SUBST(ALL)
1112 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1113 if test x$host != x$target
1115 CROSS="-DCROSS_COMPILE"
1117 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1120 # If this is a cross-compiler that does not
1121 # have its own set of headers then define
1124 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1125 # This prevents libgcc2 from containing any code which requires libc
1128 if [test x$host != x$target] && [test x$with_headers = x]; then
1129 inhibit_libc=-Dinhibit_libc
1131 if [test x$with_newlib = xyes]; then
1132 inhibit_libc=-Dinhibit_libc
1135 AC_SUBST(inhibit_libc)
1137 # When building gcc with a cross-compiler, we need to adjust things so
1138 # that the generator programs are still built with the native compiler.
1139 # Also, we cannot run fixincludes or fix-header.
1140 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1143 # These are the normal (build=host) settings:
1144 HOST_PREFIX= AC_SUBST(HOST_PREFIX)
1145 HOST_PREFIX_1=ignore- AC_SUBST(HOST_PREFIX_1)
1146 HOST_CC='$(CC)' AC_SUBST(HOST_CC)
1147 HOST_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(HOST_CFLAGS)
1149 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1150 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1152 # And these apply if build != host.
1153 if test x$build != x$host
1156 HOST_PREFIX_1=build-
1157 HOST_CC='$(CC_FOR_BUILD)'
1158 HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1164 # Expand extra_headers to include complete path.
1165 # This substitutes for lots of t-* files.
1167 if test "x$extra_headers" = x
1170 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1171 for file in $extra_headers;
1173 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1177 if test x$use_collect2 = xno; then
1181 # Add a definition of USE_COLLECT2 if system wants one.
1182 if test x$use_collect2 != x
1184 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1185 xm_defines="${xm_defines} USE_COLLECT2"
1188 # If we have gas in the build tree, make a link to it.
1189 if test -f ../gas/Makefile; then
1190 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1193 # If we have nm and objdump in the build tree, make a link to them.
1194 if test -f ../binutils/Makefile; then
1195 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1196 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1199 # If we have ld in the build tree, make a link to it.
1200 if test -f ../ld/Makefile; then
1201 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1204 # Figure out what assembler we will be using.
1205 AC_MSG_CHECKING(what assembler to use)
1207 gcc_cv_gas_major_version=
1208 gcc_cv_gas_minor_version=
1209 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1210 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1211 if test -x "$DEFAULT_ASSEMBLER"; then
1212 gcc_cv_as="$DEFAULT_ASSEMBLER"
1213 elif test -x "$AS"; then
1215 elif test -x as$host_exeext; then
1216 # Build using assembler in the current directory.
1217 gcc_cv_as=./as$host_exeext
1218 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1219 # Single tree build which includes gas.
1220 for f in $gcc_cv_as_bfd_srcdir/configure $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1223 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1225 if test x$gcc_cv_gas_version != x; then
1230 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1231 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1232 gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.[0-9]*\.\([0-9]*\)"`
1236 if test "x$gcc_cv_as" = x; then
1237 # Search the same directories that the installed compiler will
1238 # search. Else we may find the wrong assembler and lose. If we
1239 # do not find a suitable assembler binary, then try the user's
1242 # Also note we have to check MD_EXEC_PREFIX before checking the
1243 # user's path. Unfortunately, there is no good way to get at the
1244 # value of MD_EXEC_PREFIX here. So we do a brute force search
1245 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1246 # to be fixed as part of the make/configure rewrite too.
1248 if test "x$exec_prefix" = xNONE; then
1249 if test "x$prefix" = xNONE; then
1250 test_prefix=/usr/local
1255 test_prefix=$exec_prefix
1258 # If the loop below does not find an assembler, then use whatever
1259 # one we can find in the users's path.
1261 if test "x$program_prefix" != xNONE; then
1262 gcc_cv_as=${program_prefix}as$host_exeext
1264 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1267 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1268 $test_prefix/lib/gcc-lib/$target_alias \
1269 /usr/lib/gcc/$target_alias/$gcc_version \
1270 /usr/lib/gcc/$target_alias \
1271 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1272 $test_prefix/$target_alias/bin"
1274 if test x$host = x$target; then
1275 test_dirs="$test_dirs \
1280 /bsd43/usr/lib/cmplrs/cc \
1281 /usr/cross64/usr/bin \
1282 /usr/lib/cmplrs/cc \
1283 /sysv/usr/lib/cmplrs/cc \
1284 /svr4/usr/lib/cmplrs/cc \
1288 for dir in $test_dirs; do
1289 if test -x $dir/as$host_exeext; then
1290 gcc_cv_as=$dir/as$host_exeext
1295 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1296 AC_MSG_RESULT("newly built gas")
1298 AC_MSG_RESULT($gcc_cv_as)
1301 # Figure out what linker we will be using.
1302 AC_MSG_CHECKING(what linker to use)
1304 gcc_cv_gld_major_version=
1305 gcc_cv_gld_minor_version=
1306 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1307 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1308 if test -x "$DEFAULT_LINKER"; then
1309 gcc_cv_ld="$DEFAULT_LINKER"
1310 elif test -x "$LD"; then
1312 elif test -x ld$host_exeext; then
1313 # Build using linker in the current directory.
1314 gcc_cv_ld=./ld$host_exeext
1315 elif test -f $gcc_cv_ld_gld_srcdir/configure.in -a -f ../ld/Makefile; then
1316 # Single tree build which includes ld.
1317 for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
1320 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1322 if test x$gcc_cv_gld_version != x; then
1327 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1328 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1332 if test "x$gcc_cv_ld" = x; then
1333 # Search the same directories that the installed compiler will
1334 # search. Else we may find the wrong linker and lose. If we
1335 # do not find a suitable linker binary, then try the user's
1338 # Also note we have to check MD_EXEC_PREFIX before checking the
1339 # user's path. Unfortunately, there is no good way to get at the
1340 # value of MD_EXEC_PREFIX here. So we do a brute force search
1341 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1342 # to be fixed as part of the make/configure rewrite too.
1344 if test "x$exec_prefix" = xNONE; then
1345 if test "x$prefix" = xNONE; then
1346 test_prefix=/usr/local
1351 test_prefix=$exec_prefix
1354 # If the loop below does not find an linker, then use whatever
1355 # one we can find in the users's path.
1357 if test "x$program_prefix" != xNONE; then
1358 gcc_cv_ld=${program_prefix}ld$host_exeext
1360 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1363 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1364 $test_prefix/lib/gcc-lib/$target_alias \
1365 /usr/lib/gcc/$target_alias/$gcc_version \
1366 /usr/lib/gcc/$target_alias \
1367 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1368 $test_prefix/$target_alias/bin"
1370 if test x$host = x$target; then
1371 test_dirs="$test_dirs \
1376 /bsd43/usr/lib/cmplrs/cc \
1377 /usr/cross64/usr/bin \
1378 /usr/lib/cmplrs/cc \
1379 /sysv/usr/lib/cmplrs/cc \
1380 /svr4/usr/lib/cmplrs/cc \
1384 for dir in $test_dirs; do
1385 if test -x $dir/ld$host_exeext; then
1386 gcc_cv_ld=$dir/ld$host_exeext
1391 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1392 AC_MSG_RESULT("newly built ld")
1394 AC_MSG_RESULT($gcc_cv_ld)
1397 # Figure out what nm we will be using.
1398 AC_MSG_CHECKING(what nm to use)
1399 if test -x nm$host_exeext; then
1400 gcc_cv_nm=./nm$host_exeext
1401 elif test "x$program_prefix" != xNONE; then
1402 gcc_cv_nm=${program_prefix}nm$host_exeext
1404 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1406 AC_MSG_RESULT($gcc_cv_nm)
1408 # Figure out what objdump we will be using.
1409 AC_MSG_CHECKING(what objdump to use)
1410 if test -x objdump$host_exeext; then
1411 gcc_cv_objdump=./objdump$host_exeext
1412 elif test "x$program_prefix" != xNONE; then
1413 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1415 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1417 AC_MSG_RESULT($gcc_cv_objdump)
1419 # Figure out what assembler alignment features are present.
1420 AC_MSG_CHECKING(assembler alignment features)
1421 gcc_cv_as_alignment_features=none
1422 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1423 # Gas version 2.6 and later support for .balign and .p2align.
1424 # bytes to skip when using .p2align.
1425 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1426 gcc_cv_as_alignment_features=".balign and .p2align"
1427 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1429 # Gas version 2.8 and later support specifying the maximum
1430 # bytes to skip when using .p2align.
1431 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1432 gcc_cv_as_alignment_features=".p2align including maximum skip"
1433 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1435 elif test x$gcc_cv_as != x; then
1436 # Check if we have .balign and .p2align
1437 echo ".balign 4" > conftest.s
1438 echo ".p2align 2" >> conftest.s
1439 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1440 gcc_cv_as_alignment_features=".balign and .p2align"
1441 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1443 rm -f conftest.s conftest.o
1444 # Check if specifying the maximum bytes to skip when
1445 # using .p2align is supported.
1446 echo ".p2align 4,,7" > conftest.s
1447 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1448 gcc_cv_as_alignment_features=".p2align including maximum skip"
1449 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1451 rm -f conftest.s conftest.o
1453 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1455 AC_MSG_CHECKING(assembler subsection support)
1456 gcc_cv_as_subsections=no
1457 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1458 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1459 gcc_cv_as_subsections="working .subsection -1"
1461 elif test x$gcc_cv_as != x; then
1462 # Check if we have .subsection
1463 echo ".subsection 1" > conftest.s
1464 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1465 gcc_cv_as_subsections=".subsection"
1466 if test x$gcc_cv_nm != x; then
1467 cat > conftest.s <<EOF
1468 conftest_label1: .word 0
1470 conftest_label2: .word 0
1473 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1474 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1475 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1476 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1479 gcc_cv_as_subsections="working .subsection -1"
1484 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1486 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1487 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1488 [Define if your assembler supports .subsection and .subsection -1 starts
1489 emitting at the beginning of your section.])
1491 AC_MSG_RESULT($gcc_cv_as_subsections)
1493 AC_MSG_CHECKING(assembler weak support)
1495 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1496 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1497 gcc_cv_as_weak="yes"
1499 elif test x$gcc_cv_as != x; then
1500 # Check if we have .weak
1501 echo " .weak foobar" > conftest.s
1502 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1503 gcc_cv_as_weak="yes"
1505 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1507 if test x"$gcc_cv_as_weak" = xyes; then
1508 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1510 AC_MSG_RESULT($gcc_cv_as_weak)
1512 AC_MSG_CHECKING(assembler hidden support)
1514 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1515 if test "$gcc_cv_gas_major_version" -eq 2 \
1516 -a "$gcc_cv_gas_minor_version" -eq 12 \
1517 -a "$gcc_cv_gas_patch_version" -ge 1 \
1518 -o "$gcc_cv_gas_major_version" -eq 2 \
1519 -a "$gcc_cv_gas_minor_version" -gt 12 \
1520 -o "$gcc_cv_gas_major_version" -gt 2 \
1521 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1522 gcc_cv_as_hidden="yes"
1524 elif test x$gcc_cv_as != x; then
1525 # Check if we have .hidden
1526 echo " .hidden foobar" > conftest.s
1527 echo "foobar:" >> conftest.s
1528 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1529 gcc_cv_as_hidden="yes"
1531 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1533 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1534 # This is irritatingly difficult to feature test for. Look for
1535 # the date string after the version number.
1536 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1537 if echo "$ld_ver" | grep GNU > /dev/null; then
1539 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,;p'`
1541 if test 0"$ld_date" -lt 20020404; then
1542 gcc_cv_as_hidden="no"
1546 if test x"$gcc_cv_as_hidden" = xyes; then
1547 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1548 [Define if your assembler supports .hidden.])
1550 AC_MSG_RESULT($gcc_cv_as_hidden)
1551 libgcc_visibility=$gcc_cv_as_hidden
1552 AC_SUBST(libgcc_visibility)
1554 AC_MSG_CHECKING(assembler leb128 support)
1556 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1557 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 11 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1558 gcc_cv_as_leb128="yes"
1560 elif test x$gcc_cv_as != x; then
1561 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1562 cat > conftest.s <<EOF
1570 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1571 gcc_cv_as_leb128="yes"
1573 # GAS versions before 2.11 do not support uleb128,
1574 # despite appearing to.
1575 # ??? There exists an elf-specific test that will crash
1576 # the assembler. Perhaps it's better to figure out whether
1577 # arbitrary sections are supported and try the test.
1578 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1579 if echo "$as_ver" | grep GNU > /dev/null; then
1581 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1582 as_major=`echo $as_ver | sed 's/\..*//'`
1583 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1585 if test $as_major -eq 2 -a $as_minor -lt 11; then
1586 gcc_cv_as_leb128="no"
1590 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1592 if test x"$gcc_cv_as_leb128" = xyes; then
1593 AC_DEFINE(HAVE_AS_LEB128, 1,
1594 [Define if your assembler supports .uleb128.])
1596 AC_MSG_RESULT($gcc_cv_as_leb128)
1598 AC_MSG_CHECKING(assembler eh_frame optimization)
1599 gcc_cv_as_eh_frame=no
1600 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1601 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1602 gcc_cv_as_eh_frame="yes"
1604 elif test x$gcc_cv_as != x; then
1605 # Check if this is GAS.
1606 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1607 rm -f a.out 2> /dev/null
1608 if echo "$as_ver" | grep GNU > /dev/null; then
1609 # Versions up to and including 2.11.0 may mis-optimize
1610 # .eh_frame data. Try something.
1611 cat > conftest.s <<EOF
1618 .section .eh_frame,"aw",@progbits
1620 .4byte .LECIE1-.LSCIE1
1634 .4byte .LEFDE1-.LASFDE1
1636 .4byte .LASFDE1-__FRAME_BEGIN__
1645 cat > conftest.lit <<EOF
1646 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1647 0010 01000000 12000000 18000000 00000000 ................
1648 0020 08000000 04080000 0044 .........D
1650 cat > conftest.big <<EOF
1651 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1652 0010 00000001 00000012 00000018 00000000 ................
1653 0020 00000008 04000000 0844 .........D
1655 # If the assembler didn't choke, and we can objdump,
1656 # and we got the correct data, then succeed.
1657 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1658 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1659 | tail -3 > conftest.got \
1660 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1661 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1663 gcc_cv_as_eh_frame="yes"
1665 gcc_cv_as_eh_frame="bad"
1666 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1667 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1668 [Define if your assembler mis-optimizes .eh_frame data.])
1674 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1676 AC_MSG_CHECKING(assembler section merging support)
1677 gcc_cv_as_shf_merge=no
1678 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1679 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1680 gcc_cv_as_shf_merge=yes
1682 elif test x$gcc_cv_as != x; then
1683 # Check if we support SHF_MERGE sections
1684 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1685 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1686 gcc_cv_as_shf_merge=yes
1688 rm -f conftest.s conftest.o
1690 if test x"$gcc_cv_as_shf_merge" = xyes; then
1691 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1692 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1694 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1697 # All TARGET_ABI_OSF targets.
1698 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
1699 AC_CACHE_CHECK([assembler supports explicit relocations],
1700 gcc_cv_as_explicit_relocs, [
1701 gcc_cv_as_explicit_relocs=unknown
1702 if test x$gcc_cv_gas_major_version != x \
1703 -a x$gcc_cv_gas_minor_version != x
1705 if test "$gcc_cv_gas_major_version" -eq 2 \
1706 -a "$gcc_cv_gas_minor_version" -ge 12 \
1707 -o "$gcc_cv_gas_major_version" -gt 2; then
1708 gcc_cv_as_explicit_relocs=yes
1710 elif test x$gcc_cv_as != x; then
1711 cat > conftest.s << 'EOF'
1714 extbl $3, $2, $3 !lituse_bytoff!1
1715 ldq $2, a($29) !literal!1
1716 ldq $4, b($29) !literal!2
1717 ldq_u $3, 0($2) !lituse_base!1
1718 ldq $27, f($29) !literal!5
1719 jsr $26, ($27), f !lituse_jsr!5
1720 ldah $29, 0($26) !gpdisp!3
1721 lda $0, c($29) !gprel
1722 ldah $1, d($29) !gprelhigh
1723 lda $1, d($1) !gprellow
1724 lda $29, 0($29) !gpdisp!3
1726 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1727 gcc_cv_as_explicit_relocs=yes
1729 gcc_cv_as_explicit_relocs=no
1731 rm -f conftest.s conftest.o
1734 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
1735 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
1736 [Define if your assembler supports explicit relocations.])
1740 AC_CACHE_CHECK([assembler .register pseudo-op support],
1741 gcc_cv_as_register_pseudo_op, [
1742 gcc_cv_as_register_pseudo_op=unknown
1743 if test x$gcc_cv_as != x; then
1744 # Check if we have .register
1745 echo ".register %g2, #scratch" > conftest.s
1746 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1747 gcc_cv_as_register_pseudo_op=yes
1749 gcc_cv_as_register_pseudo_op=no
1751 rm -f conftest.s conftest.o
1754 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1755 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1756 [Define if your assembler supports .register.])
1759 AC_CACHE_CHECK([assembler supports -relax],
1760 gcc_cv_as_relax_opt, [
1761 gcc_cv_as_relax_opt=unknown
1762 if test x$gcc_cv_as != x; then
1763 # Check if gas supports -relax
1764 echo ".text" > conftest.s
1765 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1766 gcc_cv_as_relax_opt=yes
1768 gcc_cv_as_relax_opt=no
1770 rm -f conftest.s conftest.o
1773 if test "x$gcc_cv_as_relax_opt" = xyes; then
1774 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1775 [Define if your assembler supports -relax option.])
1778 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
1779 gcc_cv_as_sparc_ua_pcrel, [
1780 gcc_cv_as_sparc_ua_pcrel=unknown
1781 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
1782 gcc_cv_as_sparc_ua_pcrel=no
1783 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
1784 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1785 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
1786 gcc_cv_as_sparc_ua_pcrel=yes
1788 rm -f conftest.s conftest.o conftest
1791 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1792 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
1793 [Define if your assembler and linker support unaligned PC relative relocs.])
1796 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
1797 gcc_cv_as_sparc_ua_pcrel_hidden, [
1798 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1799 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
1800 if test x$gcc_cv_objdump != x; then
1801 gcc_cv_as_sparc_ua_pcrel_hidden=no
1802 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
1803 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
1804 echo "foo: .skip 4" >> conftest.s
1805 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1806 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
1807 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
1808 | grep ' 31000000 07323334' > /dev/null 2>&1; then
1809 if $gcc_cv_objdump -R conftest 2> /dev/null \
1810 | grep 'DISP32' > /dev/null 2>&1; then
1813 gcc_cv_as_sparc_ua_pcrel_hidden=yes
1817 rm -f conftest.s conftest.o conftest
1819 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
1822 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
1823 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
1824 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
1827 if test "x$gcc_cv_as_flags64" != xno; then
1828 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1829 gcc_cv_as_offsetable_lo10, [
1830 gcc_cv_as_offsetable_lo10=unknown
1831 if test "x$gcc_cv_as" != x; then
1832 # Check if assembler has offsetable %lo()
1833 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1834 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1835 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1837 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1838 > /dev/null 2>&1; then
1839 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1840 gcc_cv_as_offsetable_lo10=no
1842 gcc_cv_as_offsetable_lo10=yes
1845 gcc_cv_as_offsetable_lo10=no
1847 rm -f conftest.s conftest.o conftest1.s conftest1.o
1850 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1851 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1852 [Define if your assembler supports offsetable %lo().])
1859 i[34567]86-*-* | x86_64-*-*)
1861 AC_MSG_CHECKING(assembler instructions)
1862 gcc_cv_as_instructions=
1863 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1864 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1865 gcc_cv_as_instructions="filds fists"
1867 elif test x$gcc_cv_as != x; then
1868 set "filds fists" "filds mem; fists mem"
1871 echo "$2" > conftest.s
1872 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1873 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1877 rm -f conftest.s conftest.o
1879 if test x"$gcc_cv_as_instructions" != x; then
1880 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1882 AC_MSG_RESULT($gcc_cv_as_instructions)
1884 AC_MSG_CHECKING(assembler GOTOFF in data directives)
1885 gcc_cv_as_gotoff_in_data=no
1886 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1888 if test "$gcc_cv_gas_major_version" -eq 2 \
1889 -a "$gcc_cv_gas_minor_version" -ge 11 \
1890 -o "$gcc_cv_gas_major_version" -gt 2; then
1891 gcc_cv_as_gotoff_in_data=yes
1893 elif test x$gcc_cv_as != x; then
1894 cat > conftest.s <<EOF
1901 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1902 gcc_cv_as_gotoff_in_data=yes
1905 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
1906 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
1907 [Define true if the assembler supports '.long foo@GOTOFF'.])
1908 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
1912 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1913 gcc_cv_as_dwarf2_debug_line=no
1914 # ??? Not all targets support dwarf2 debug_line, even within a version
1915 # of gas. Moreover, we need to emit a valid instruction to trigger any
1916 # info to the output file. So, as supported targets are added to gas 2.11,
1917 # add some instruction here to (also) show we expect this might work.
1918 # ??? Once 2.11 is released, probably need to add first known working
1919 # version to the per-target configury.
1921 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-* | hppa*-*-*)
1928 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1930 if test "$gcc_cv_gas_major_version" -eq 2 \
1931 -a "$gcc_cv_gas_minor_version" -ge 11 \
1932 -o "$gcc_cv_gas_major_version" -gt 2 \
1933 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1934 && test x"$insn" != x ; then
1935 gcc_cv_as_dwarf2_debug_line="yes"
1937 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1938 echo ' .file 1 "conftest.s"' > conftest.s
1939 echo ' .loc 1 3 0' >> conftest.s
1940 echo " $insn" >> conftest.s
1941 # ??? This fails with non-gnu grep.
1942 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1943 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1944 # The .debug_line file table must be in the exact order that
1945 # we specified the files, since these indices are also used
1946 # by DW_AT_decl_file. Approximate this test by testing if
1947 # the assembler bitches if the same index is assigned twice.
1948 echo ' .file 1 "foo.s"' > conftest.s
1949 echo ' .file 1 "bar.s"' >> conftest.s
1950 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1952 gcc_cv_as_dwarf2_debug_line="no"
1954 gcc_cv_as_dwarf2_debug_line="yes"
1957 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1959 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1960 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1961 [Define if your assembler supports dwarf2 .file/.loc directives,
1962 and preserves file table indices exactly as given.])
1964 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1966 AC_MSG_CHECKING(assembler --gdwarf2 support)
1967 gcc_cv_as_gdwarf2_flag=no
1968 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1970 if test "$gcc_cv_gas_major_version" -eq 2 \
1971 -a "$gcc_cv_gas_minor_version" -ge 11 \
1972 -o "$gcc_cv_gas_major_version" -gt 2 \
1973 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1974 && test x"$insn" != x ; then
1975 gcc_cv_as_gdwarf2_debug_flag="yes"
1977 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1978 echo '' > conftest.s
1979 # ??? This fails with non-gnu grep.
1980 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
1982 gcc_cv_as_gdwarf2_flag="yes"
1984 rm -f conftest.s conftest.o
1986 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
1987 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
1988 [Define if your assembler supports the --gdwarf2 option.])
1990 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
1992 AC_MSG_CHECKING(assembler --gstabs support)
1993 gcc_cv_as_gstabs_flag=no
1994 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1996 if test "$gcc_cv_gas_major_version" -eq 2 \
1997 -a "$gcc_cv_gas_minor_version" -ge 11 \
1998 -o "$gcc_cv_gas_major_version" -gt 2 \
1999 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2000 && test x"$insn" != x ; then
2001 gcc_cv_as_gstabs_debug_flag="yes"
2003 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2004 echo '' > conftest.s
2005 # ??? This fails with non-gnu grep.
2006 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2007 gcc_cv_as_gstabs_flag="yes"
2009 rm -f conftest.s conftest.o
2011 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2012 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2013 [Define if your assembler supports the --gstabs option.])
2015 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2017 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2018 gcc_cv_ld_eh_frame_hdr=no
2019 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2020 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2021 gcc_cv_ld_eh_frame_hdr=yes
2023 elif test x$gcc_cv_ld != x; then
2024 # Check if linker supports --eh-frame-hdr option
2025 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2026 gcc_cv_ld_eh_frame_hdr=yes
2029 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2030 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2031 [Define if your linker supports --eh-frame-hdr option.])
2033 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2035 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
2036 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2039 # Figure out what language subdirectories are present.
2040 # Look if the user specified --enable-languages="..."; if not, use
2041 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2043 # NB: embedded tabs in this IF block -- do not untabify
2044 if test x"${enable_languages+set}" != xset; then
2045 if test x"${LANGUAGES+set}" = xset; then
2046 enable_languages="${LANGUAGES}"
2047 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2050 enable_languages=all
2053 if test x"${enable_languages}" = x ||
2054 test x"${enable_languages}" = xyes;
2056 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2059 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2061 # First scan to see if an enabled language requires some other language.
2062 # We assume that a given config-lang.in will list all the language
2063 # front ends it requires, even if some are required indirectly.
2064 for lang in ${srcdir}/*/config-lang.in ..
2069 # The odd quoting in the next line works around
2070 # an apparent bug in bash 1.12 on linux.
2072 ${srcdir}/[*]/config-lang.in)
2075 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2076 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2077 for other in $this_lang_requires
2079 case ,${enable_languages}, in
2085 enable_languages="$enable_languages,$other"
2095 for lang in ${srcdir}/*/config-lang.in ..
2099 # The odd quoting in the next line works around
2100 # an apparent bug in bash 1.12 on linux.
2102 ${srcdir}/[*]/config-lang.in) ;;
2104 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2105 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2106 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2107 if test "x$lang_alias" = x
2109 echo "$lang doesn't set \$language." 1>&2
2112 case ${build_by_default},${enable_languages}, in
2113 *,$lang_alias,*) add_this_lang=yes ;;
2114 no,*) add_this_lang=no ;;
2115 *,all,*) add_this_lang=yes ;;
2116 *) add_this_lang=no ;;
2118 if test x"${add_this_lang}" = xyes; then
2120 ${srcdir}/ada/config-lang.in)
2121 if test x$have_gnat = xyes ; then
2122 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2126 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2135 # Make gthr-default.h if we have a thread file.
2137 if test $thread_file != single; then
2138 rm -f gthr-default.h
2139 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2140 gthread_flags=-DHAVE_GTHR_DEFAULT
2142 AC_SUBST(gthread_flags)
2144 # Find out what GC implementation we want, or may, use.
2146 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2153 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2158 echo "Using $GGC for garbage collection."
2160 # Use the system's zlib library.
2162 zlibinc="-I\$(srcdir)/../zlib"
2163 AC_ARG_WITH(system-zlib,
2164 [ --with-system-zlib use installed libz],
2171 dnl Very limited version of automake's enable-maintainer-mode
2173 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2174 dnl maintainer-mode is disabled by default
2175 AC_ARG_ENABLE(maintainer-mode,
2176 [ --enable-maintainer-mode
2177 enable make rules and dependencies not useful
2178 (and sometimes confusing) to the casual installer],
2179 maintainer_mode=$enableval,
2182 AC_MSG_RESULT($maintainer_mode)
2184 if test "$maintainer_mode" = "yes"; then
2191 # With Setjmp/Longjmp based exception handling.
2192 AC_ARG_ENABLE(sjlj-exceptions,
2193 [ --enable-sjlj-exceptions
2194 arrange to use setjmp/longjmp exception handling],
2195 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
2196 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
2197 [Define 0/1 to force the choice for exception handling model.])])
2199 # Make empty files to contain the specs and options for each language.
2200 # Then add #include lines to for a compiler that has specs and/or options.
2205 for subdir in . $subdirs
2207 if test -f $srcdir/$subdir/lang-specs.h; then
2208 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2210 if test -f $srcdir/$subdir/lang-options.h; then
2211 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2213 if test -f $srcdir/$subdir/$subdir-tree.def; then
2214 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2218 # These (without "all_") are set in each config-lang.in.
2219 # `language' must be a single word so is spelled singularly.
2224 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc'
2225 # List of language makefile fragments.
2228 # Add the language fragments.
2229 # Languages are added via two mechanisms. Some information must be
2230 # recorded in makefile variables, these are defined in config-lang.in.
2231 # We accumulate them and plug them into the main Makefile.
2232 # The other mechanism is a set of hooks for each of the main targets
2233 # like `clean', `install', etc.
2235 language_fragments="Make-lang"
2236 language_hooks="Make-hooks"
2238 for s in .. $subdirs
2247 . ${srcdir}/$s/config-lang.in
2248 if test "x$language" = x
2250 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2253 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2254 if test -f ${srcdir}/$s/Makefile.in
2255 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2257 all_languages="$all_languages $language"
2258 if test "x$boot_language" = xyes
2260 all_boot_languages="$all_boot_languages $language"
2262 all_compilers="$all_compilers $compilers"
2263 all_stagestuff="$all_stagestuff $stagestuff"
2264 all_outputs="$all_outputs $outputs"
2269 for language in .. $all_languages
2271 if test $language != ".."
2273 check_languages="$check_languages check-$language"
2277 # Since we can't use `::' targets, we link each language in
2278 # with a set of hooks, reached indirectly via lang.${target}.
2282 target_list="all.build all.cross start.encap rest.encap \
2283 info dvi generated-manpages \
2284 install-normal install-common install-info install-man \
2286 mostlyclean clean distclean extraclean maintainer-clean \
2287 stage1 stage2 stage3 stage4"
2288 for t in $target_list
2291 for lang in .. $all_languages
2293 if test $lang != ".."; then
2297 echo "lang.$t: $x" >> Make-hooks
2302 echo "dir ." > .gdbinit
2303 echo "dir ${srcdir}" >> .gdbinit
2304 if test x$gdb_needs_out_file_path = xyes
2306 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2308 if test "x$subdirs" != x; then
2311 echo "dir ${srcdir}/$s" >> .gdbinit
2314 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2316 # Define variables host_canonical and build_canonical
2317 # because some Cygnus local changes in the Makefile depend on them.
2318 build_canonical=${build}
2319 host_canonical=${host}
2321 if test "${host}" != "${target}" ; then
2322 target_subdir=${target_alias}/
2324 AC_SUBST(build_canonical)
2325 AC_SUBST(host_canonical)
2326 AC_SUBST(target_subdir)
2328 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2329 # absolute path for gcc_tooldir based on inserting the number of up-directory
2330 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2331 # $(libsubdir)/@(unlibsubdir) based path.
2332 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2333 # make and thus we'd get different behavior depending on where we built the
2335 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2336 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2338 changequote(<<, >>)dnl
2339 # An explanation of the sed strings:
2340 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2341 # -e 's|/$||' match a trailing forward slash and eliminates it
2342 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2343 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2345 # (*) Note this pattern overwrites the first character of the string
2346 # with a forward slash if one is not already present. This is not a
2347 # problem because the exact names of the sub-directories concerned is
2348 # unimportant, just the number of them matters.
2350 # The practical upshot of these patterns is like this:
2352 # prefix exec_prefix result
2353 # ------ ----------- ------
2355 # /foo/ /foo/bar ../
2356 # /foo /foo/bar/ ../
2357 # /foo/ /foo/bar/ ../
2358 # /foo /foo/bar/ugg ../../
2361 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2362 changequote([, ])dnl
2364 AC_SUBST(gcc_tooldir)
2367 # Find a directory in which to install a shared libgcc.
2369 AC_ARG_ENABLE(version-specific-runtime-libs,
2370 [ --enable-version-specific-runtime-libs
2371 specify that runtime libraries should be
2372 installed in a compiler-specific directory])
2374 AC_ARG_WITH(slibdir,
2375 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2376 slibdir="$with_slibdir",
2377 if test "${enable_version_specific_runtime_libs+set}" = set; then
2378 slibdir='$(libsubdir)'
2379 elif test "$host" != "$target"; then
2380 slibdir='$(build_tooldir)/lib'
2386 # Nothing to do for FLOAT_H, float_format already handled.
2387 objdir=`${PWDCMD-pwd}`
2390 # Process the language and host/target makefile fragments.
2391 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2393 # Substitute configuration variables
2395 AC_SUBST(all_boot_languages)
2396 AC_SUBST(all_compilers)
2397 AC_SUBST(all_lang_makefiles)
2398 AC_SUBST(all_languages)
2399 AC_SUBST(all_stagestuff)
2400 AC_SUBST(build_exeext)
2401 AC_SUBST(build_install_headers_dir)
2402 AC_SUBST(build_xm_file_list)
2403 AC_SUBST(build_xm_file)
2404 AC_SUBST(build_xm_defines)
2405 AC_SUBST(check_languages)
2406 AC_SUBST(cc_set_by_configure)
2407 AC_SUBST(quoted_cc_set_by_configure)
2408 AC_SUBST(cpp_install_dir)
2409 AC_SUBST(dep_host_xmake_file)
2410 AC_SUBST(dep_tmake_file)
2411 AC_SUBST(extra_headers_list)
2412 AC_SUBST(extra_objs)
2413 AC_SUBST(extra_parts)
2414 AC_SUBST(extra_passes)
2415 AC_SUBST(extra_programs)
2416 AC_SUBST(float_h_file)
2417 AC_SUBST(gcc_config_arguments)
2418 AC_SUBST(gcc_gxx_include_dir)
2419 AC_SUBST(libstdcxx_incdir)
2420 AC_SUBST(gcc_version)
2421 AC_SUBST(gcc_version_full)
2422 AC_SUBST(gcc_version_trigger)
2423 AC_SUBST(host_exeext)
2424 AC_SUBST(host_extra_gcc_objs)
2425 AC_SUBST(host_xm_file_list)
2426 AC_SUBST(host_xm_file)
2427 AC_SUBST(host_xm_defines)
2429 AC_SUBST(lang_options_files)
2430 AC_SUBST(lang_specs_files)
2431 AC_SUBST(lang_tree_files)
2432 AC_SUBST(local_prefix)
2434 AC_SUBST(objc_boehm_gc)
2436 AC_SUBST(out_object_file)
2437 AC_SUBST(stage_prefix_set_by_configure)
2438 AC_SUBST(quoted_stage_prefix_set_by_configure)
2439 AC_SUBST(symbolic_link)
2440 AC_SUBST(thread_file)
2441 AC_SUBST(tm_file_list)
2443 AC_SUBST(tm_p_file_list)
2446 AC_SUBST(xm_defines)
2447 AC_SUBST(target_alias)
2448 AC_SUBST(c_target_objs)
2449 AC_SUBST(cxx_target_objs)
2450 AC_SUBST(target_cpu_default)
2452 AC_SUBST_FILE(target_overrides)
2453 AC_SUBST_FILE(host_overrides)
2454 AC_SUBST_FILE(language_fragments)
2455 AC_SUBST_FILE(language_hooks)
2457 # Echo that links are built
2458 if test x$host = x$target
2466 if test x$host != x$build
2468 str3=" on a $build system"
2471 if test "x$str2" != x || test "x$str3" != x
2476 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2478 if test "x$str2" != x || test "x$str3" != x
2480 echo " ${str2}${str3}." 1>&2
2483 # Truncate the target if necessary
2484 if test x$host_truncate_target != x; then
2485 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2488 # Configure the subdirectories
2489 # AC_CONFIG_SUBDIRS($subdirs)
2491 # Create the Makefile
2492 # and configure language subdirectories
2493 AC_OUTPUT($all_outputs,
2495 case x$CONFIG_HEADERS in
2496 xauto-host.h:config.in)
2499 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2500 # bootstrapping and the installation procedure can still use
2501 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2502 # FLAGS_TO_PASS has been modified to solve the problem there.
2503 # This is virtually a duplicate of what happens in configure.lang; we do
2504 # an extra check to make sure this only happens if ln -s can be used.
2505 if test "$symbolic_link" = "ln -s"; then
2506 for d in .. ${subdirs} fixinc ; do
2507 if test $d != ..; then
2508 STARTDIR=`${PWDCMD-pwd}`
2510 for t in stage1 stage2 stage3 stage4 include
2513 $symbolic_link ../$t $t 2>/dev/null
2519 # Avoid having to add intl to our include paths.
2520 if test -f intl/libintl.h; then
2521 echo creating libintl.h
2522 echo '#include "intl/libintl.h"' >libintl.h
2526 symbolic_link='$symbolic_link'