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$ac_gc_always_collect != x ; then
251 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
252 [Define if you want the garbage collector to operate in maximally
253 paranoid mode, validating the entire heap and collecting garbage at
254 every opportunity. This is extremely expensive.])
257 AC_ARG_WITH(cpp_install_dir,
258 [ --with-cpp-install-dir=DIR
259 install the user visible C preprocessor in DIR
260 (relative to PREFIX) as well as PREFIX/bin],
261 [if test x$withval = xyes; then
262 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
263 elif test x$withval != xno; then
264 cpp_install_dir=$withval
267 # Enable Multibyte Characters for C/C++
268 AC_ARG_ENABLE(c-mbchar,
269 [ --enable-c-mbchar enable multibyte characters for C and C++],
270 if test x$enable_c_mbchar != xno; then
271 AC_DEFINE(MULTIBYTE_CHARS, 1,
272 [Define if you want the C and C++ compilers to support multibyte
273 character sets for source code.])
277 # Pass with no value to take the default
278 # Pass with a value to specify a thread package
279 AC_ARG_ENABLE(threads,
280 [ --enable-threads enable thread usage for target GCC
281 --enable-threads=LIB use LIB thread package for target GCC],,
284 enable_threads_flag=$enable_threads
285 # Check if a valid thread package
286 case x${enable_threads_flag} in
289 target_thread_file='single'
293 target_thread_file=''
295 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
296 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
297 target_thread_file=$enable_threads_flag
300 echo "$enable_threads is an unknown thread package" 1>&2
305 AC_ARG_ENABLE(objc-gc,
306 [ --enable-objc-gc enable the use of Boehm's garbage collector with
307 the GNU Objective-C runtime],
308 if test x$enable_objc_gc = xno; then
316 [ --with-dwarf2 force the default debug format to be DWARF 2],
317 dwarf2="$with_dwarf2",
320 AC_ARG_ENABLE(shared,
321 [ --disable-shared don't provide a shared libgcc],
323 case $enable_shared in
327 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
328 for pkg in $enableval; do
329 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
336 ], [enable_shared=yes])
337 AC_SUBST(enable_shared)
339 # Determine the host, build, and target systems
342 # Set program_transform_name
345 # Find the native compiler
348 # autoconf is lame and doesn't give us any substitution variable for this.
349 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
350 NO_MINUS_C_MINUS_O=yes
352 OUTPUT_OPTION='-o $@'
354 AC_SUBST(NO_MINUS_C_MINUS_O)
355 AC_SUBST(OUTPUT_OPTION)
357 # See if GNAT has been installed
360 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
361 ac_cv_prog_cc_no_long_long,
362 [save_CFLAGS="$CFLAGS"
363 CFLAGS="-Wno-long-long"
364 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
365 ac_cv_prog_cc_no_long_long=no)
366 CFLAGS="$save_CFLAGS"])
368 if test x$have_gnat != xno ; then
369 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
370 ac_cv_prog_adac_no_long_long,
371 [cat >conftest.adb <<EOF
372 procedure conftest is begin null; end conftest;
374 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
375 ac_cv_prog_adac_no_long_long=yes
377 ac_cv_prog_adac_no_long_long=no
381 ac_cv_prog_adac_no_long_long=yes
385 if test $ac_cv_prog_cc_no_long_long = yes && \
386 test $ac_cv_prog_adac_no_long_long = yes ; then
387 strict1_warn="-pedantic -Wno-long-long"
389 AC_SUBST(strict1_warn)
399 # sizeof(char) is 1 by definition.
400 gcc_AC_COMPILE_CHECK_SIZEOF(short)
401 gcc_AC_COMPILE_CHECK_SIZEOF(int)
402 gcc_AC_COMPILE_CHECK_SIZEOF(long)
403 if test $ac_cv_c_long_long = yes; then
404 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
406 if test $ac_cv_c___int64 = yes; then
407 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
412 # If the native compiler is GCC, we can enable warnings even in stage1.
413 # That's useful for people building cross-compilers, or just running a
416 if test "x$GCC" = "xyes"; then
417 warn_cflags='$(GCC_WARN_CFLAGS)'
419 AC_SUBST(warn_cflags)
421 # Stage specific cflags for build.
427 stage1_cflags="-Wa,-J"
433 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
434 # sources; use -no-cpp-precomp to get to GNU cpp.
435 # Apple's GCC has bugs in designated initializer handling, so disable
437 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
440 AC_SUBST(stage1_cflags)
444 AC_MSG_CHECKING([whether a default assembler was specified])
445 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
446 if test x"$gas_flag" = x"no"; then
447 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
449 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
455 AC_MSG_CHECKING([whether a default linker was specified])
456 if test x"${DEFAULT_LINKER+set}" = x"set"; then
457 if test x"$gnu_ld_flag" = x"no"; then
458 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
460 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
466 AC_MSG_CHECKING(for GNU C library)
467 AC_CACHE_VAL(gcc_cv_glibc,
469 [#include <features.h>],[
470 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
471 #error Not a GNU C library system
475 AC_MSG_RESULT($gcc_cv_glibc)
476 if test $gcc_cv_glibc = yes; then
477 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
480 # Find some useful tools
489 gcc_AC_HEADER_STDBOOL
492 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
493 fcntl.h unistd.h sys/file.h sys/time.h \
494 sys/resource.h sys/param.h sys/times.h sys/stat.h \
495 direct.h malloc.h langinfo.h)
497 # Check for thread headers.
498 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
499 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
501 # These tests can't be done till we know if we have limits.h.
503 gcc_AC_C_COMPILE_ENDIAN
504 gcc_AC_C_FLOAT_FORMAT
506 # See if we have the mktemp command.
507 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
509 # Do we have a single-tree copy of texinfo?
510 if test -f $srcdir/../texinfo/Makefile.in; then
511 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
512 gcc_cv_prog_makeinfo_modern=yes
513 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
515 # See if makeinfo has been installed and is modern enough
516 # that we can use it.
517 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
518 [GNU texinfo.* \([0-9][0-9.]*\)],
522 if test $gcc_cv_prog_makeinfo_modern = no; then
524 *** Makeinfo is missing or too old.
525 *** Info documentation will not be built.])
528 BUILD_INFO=info AC_SUBST(BUILD_INFO)
531 # Is pod2man recent enough to regenerate manpages?
532 AC_MSG_CHECKING([for recent Pod::Man])
533 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
535 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
542 dnl Don't use AC_PROG_LEX; we insist on flex.
543 dnl LEXLIB is not useful in gcc.
544 if test -f $srcdir/../flex/skel.c; then
545 FLEX='$(objdir)/../flex/flex'
547 AC_CHECK_PROG(FLEX, flex, flex, false)
551 # The -L switch is so bison can find its skeleton file.
552 if test -f $srcdir/../bison/bison.simple; then
553 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
555 AC_CHECK_PROG(BISON, bison, bison, false)
558 # These libraries may be used by collect2.
559 # We may need a special search path to get them linked.
560 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
562 for libs in '' -lld -lmld \
563 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
564 '-L/usr/lib/cmplrs/cc3.11 -lmld'
567 AC_TRY_LINK_FUNC(ldopen,
568 [gcc_cv_collect2_libs="$libs"; break])
571 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
572 case $gcc_cv_collect2_libs in
574 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
576 AC_SUBST(COLLECT2_LIBS)
578 # When building Ada code on Alpha, we need exc_resume which is usually in
579 # -lexc. So test for it.
582 AC_SEARCH_LIBS(exc_resume, exc)
585 AC_SUBST(GNAT_LIBEXC)
587 # See if the stage1 system preprocessor understands the ANSI C
588 # preprocessor stringification operator. (Used by symcat.h.)
591 # Use <inttypes.h> only if it exists,
592 # doesn't clash with <sys/types.h>, and declares intmax_t.
593 AC_MSG_CHECKING(for inttypes.h)
594 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
596 [#include <sys/types.h>
597 #include <inttypes.h>],
599 [gcc_cv_header_inttypes_h=yes],
600 gcc_cv_header_inttypes_h=no)])
601 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
602 if test $gcc_cv_header_inttypes_h = yes; then
603 AC_DEFINE(HAVE_INTTYPES_H, 1,
604 [Define if you have a working <inttypes.h> header file.])
607 dnl Disabled until we have a complete test for buggy enum bitfields.
608 dnl gcc_AC_C_ENUM_BF_UNSIGNED
610 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
611 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
612 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
615 AC_CHECK_TYPE(ssize_t, int)
617 # Try to determine the array type of the second argument of getgroups
618 # for the target system (int or gid_t).
620 if test "${target}" = "${build}"; then
621 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
624 # This condition may need some tweaking. It should include all
625 # targets where the array type of the second argument of getgroups
626 # is int and the type of gid_t is not equivalent to int.
627 *-*-sunos* | *-*-ultrix*)
628 TARGET_GETGROUPS_T=int
631 TARGET_GETGROUPS_T=gid_t
635 AC_SUBST(TARGET_GETGROUPS_T)
637 gcc_AC_FUNC_PRINTF_PTR
642 *** UWIN may not be used as a host platform because
643 *** linking with posix.dll is not allowed by the GNU GPL])
646 # Under VMS, vfork works very different than on Unix. The standard test
647 # won't work, and it isn't easily adaptable. It makes more sense to
649 ac_cv_func_vfork_works=yes
653 AC_FUNC_MMAP_ANYWHERE
658 # We will need to find libiberty.h and ansidecl.h
659 saved_CFLAGS="$CFLAGS"
660 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
661 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
662 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
663 fprintf_unlocked strstr errno \
664 malloc realloc calloc free basename getopt clock, , ,[
665 #include "ansidecl.h"
666 #include "system.h"])
668 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
669 #include "ansidecl.h"
671 #ifdef HAVE_SYS_RESOURCE_H
672 #include <sys/resource.h>
676 gcc_AC_CHECK_DECLS(times, , ,[
677 #include "ansidecl.h"
679 #ifdef HAVE_SYS_TIMES_H
680 #include <sys/times.h>
684 # More time-related stuff.
685 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
687 #include "ansidecl.h"
689 #ifdef HAVE_SYS_TIMES_H
690 #include <sys/times.h>
692 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
693 if test $ac_cv_struct_tms = yes; then
694 AC_DEFINE(HAVE_STRUCT_TMS, 1,
695 [Define if <sys/times.h> defines struct tms.])
698 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
699 # revisit after autoconf 2.50.
700 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
702 #include "ansidecl.h"
704 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
705 if test $gcc_cv_type_clock_t = yes; then
706 AC_DEFINE(HAVE_CLOCK_T, 1,
707 [Define if <time.h> defines clock_t.])
710 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
711 CFLAGS="$saved_CFLAGS"
713 # mkdir takes a single argument on some systems.
714 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
724 build_install_headers_dir=install-headers-tar
729 host_truncate_target=
732 # Decode the host machine, then the target machine.
733 # For the host machine, we save the xm_file variable as host_xm_file;
734 # then we decode the target machine and forget everything else
735 # that came from the host machine.
736 for machine in $build $host $target; do
737 . ${srcdir}/config.gcc
740 extra_objs="${host_extra_objs} ${extra_objs}"
742 # Default the target-machine variables that were not explicitly set.
743 if test x"$tm_file" = x
744 then tm_file=$cpu_type/$cpu_type.h; fi
746 if test x"$extra_headers" = x
747 then extra_headers=; fi
749 if test x$md_file = x
750 then md_file=$cpu_type/$cpu_type.md; fi
752 if test x$out_file = x
753 then out_file=$cpu_type/$cpu_type.c; fi
755 if test x"$tmake_file" = x
756 then tmake_file=$cpu_type/t-$cpu_type
759 if test x"$dwarf2" = xyes
760 then tm_file="$tm_file tm-dwarf2.h"
763 if test x$float_format = x
764 then float_format=i64
767 if test $float_format = none
768 then float_h_file=Makefile.in
769 else float_h_file=float-$float_format.h
772 # Say what files are being used for the output code and MD file.
773 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
774 echo "Using \`$srcdir/config/$md_file' as machine description file."
776 # If any of the xm_file variables contain nonexistent files, warn
777 # about them and drop them.
780 for x in $build_xm_file; do
781 if test -f $srcdir/config/$x
783 else AC_MSG_WARN($srcdir/config/$x does not exist.)
789 for x in $host_xm_file; do
790 if test -f $srcdir/config/$x
792 else AC_MSG_WARN($srcdir/config/$x does not exist.)
798 for x in $xm_file; do
799 if test -f $srcdir/config/$x
801 else AC_MSG_WARN($srcdir/config/$x does not exist.)
807 for f in $tm_file; do
810 if test $count = ax; then
811 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
813 echo "Using the following target machine macro files:"
814 for f in $tm_file; do
815 echo " $srcdir/config/$f"
820 for f in $host_xm_file; do
823 if test $count = a; then
825 elif test $count = ax; then
826 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
828 echo "Using the following host machine macro files:"
829 for f in $host_xm_file; do
830 echo " $srcdir/config/$f"
834 if test "$host_xm_file" != "$build_xm_file"; then
836 for f in $build_xm_file; do
839 if test $count = a; then
841 elif test $count = ax; then
842 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
844 echo "Using the following build machine macro files:"
845 for f in $build_xm_file; do
846 echo " $srcdir/config/$f"
851 if test x$thread_file = x; then
852 if test x$target_thread_file != x; then
853 thread_file=$target_thread_file
859 # auto-host.h is the file containing items generated by autoconf and is
860 # the first file included by config.h.
861 # If host=build, it is correct to have hconfig include auto-host.h
862 # as well. If host!=build, we are in error and need to do more
863 # work to find out the build config parameters.
864 if test x$host = x$build
866 build_auto=auto-host.h
869 # We create a subdir, then run autoconf in the subdir.
870 # To prevent recursion we set host and build for the new
871 # invocation of configure to the build for this invocation
878 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
879 *) realsrcdir=../${srcdir};;
881 saved_CFLAGS="${CFLAGS}"
882 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
883 ${realsrcdir}/configure \
884 --target=$target_alias --host=$build_alias --build=$build_alias
885 CFLAGS="${saved_CFLAGS}"
887 # We just finished tests for the build machine, so rename
888 # the file auto-build.h in the gcc directory.
889 mv auto-host.h ../auto-build.h
892 build_auto=auto-build.h
897 tm_file="${tm_file} defaults.h"
898 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
899 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
900 xm_file="ansidecl.h ${xm_file} ${tm_file}"
902 # Truncate the target if necessary
903 if test x$host_truncate_target != x; then
904 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
907 # Get the version trigger filename from the toplevel
908 if test "${with_gcc_version_trigger+set}" = set; then
909 gcc_version_trigger=$with_gcc_version_trigger
911 gcc_version_trigger=${srcdir}/version.c
914 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
915 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
917 # Compile in configure arguments.
918 if test -f configargs.h ; then
919 # Being re-configured.
920 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
921 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
923 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
925 cat > configargs.h <<EOF
926 /* Generated automatically. */
927 static const char configuration_arguments[] = "$gcc_config_arguments";
928 static const char thread_model[] = "$thread_file";
932 # Internationalization
934 VERSION="$gcc_version"
938 # Enable NLS support by default
940 [ --enable-nls use Native Language Support (default)],
943 # if cross compiling, disable NLS support.
944 # It's not worth the trouble, at least for now.
946 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
947 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
953 # Windows32 Registry support for specifying GCC installation paths.
954 AC_ARG_ENABLE(win32-registry,
955 [ --disable-win32-registry
956 disable lookup of installation paths in the
957 Registry on Windows hosts
958 --enable-win32-registry enable registry lookup (default)
959 --enable-win32-registry=KEY
960 use KEY instead of GCC version as the last portion
961 of the registry key],,)
963 win32 | pe | cygwin* | mingw32* | uwin*)
964 AC_MSG_CHECKING(whether windows registry support is requested)
965 if test "x$enable_win32_registry" != xno; then
966 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
967 [Define to 1 if installation paths should be looked up in Windows32
968 Registry. Ignored on non windows32 hosts.])
970 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
975 # Check if user specified a different registry key.
976 case "x${enable_win32_registry}" in
979 gcc_cv_win32_registry_key="$VERSION"
982 # no registry lookup.
983 gcc_cv_win32_registry_key=''
986 # user-specified key.
987 gcc_cv_win32_registry_key="$enable_win32_registry"
991 if test "x$enable_win32_registry" != xno; then
992 AC_MSG_CHECKING(registry key on windows hosts)
993 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
994 [Define to be the last portion of registry key on windows hosts.])
995 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1000 # Get an absolute path to the GCC top-level source directory
1001 holddir=`${PWDCMD-pwd}`
1003 topdir=`${PWDCMD-pwd}`
1006 # Conditionalize the makefile for this host machine.
1007 # Make-host contains the concatenation of all host makefile fragments
1008 # [there can be more than one]. This file is built by configure.frag.
1009 host_overrides=Make-host
1010 dep_host_xmake_file=
1011 for f in .. ${host_xmake_file}
1013 if test -f ${srcdir}/config/$f
1015 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1019 # Conditionalize the makefile for this target machine.
1020 # Make-target contains the concatenation of all host makefile fragments
1021 # [there can be more than one]. This file is built by configure.frag.
1022 target_overrides=Make-target
1024 for f in .. ${tmake_file}
1026 if test -f ${srcdir}/config/$f
1028 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1032 # If the host doesn't support symlinks, modify CC in
1033 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1034 # Otherwise, we can use "CC=$(CC)".
1036 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1038 cc_set_by_configure="\$(CC)"
1039 quoted_cc_set_by_configure="\$(CC)"
1040 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1041 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1044 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1046 symbolic_link="cp -p"
1050 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1051 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1052 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1053 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1057 out_object_file=`basename $out_file .c`.o
1060 for f in $tm_file; do
1063 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1065 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1066 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1071 for f in $tm_p_file; do
1072 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1076 for f in $host_xm_file; do
1079 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1081 host_xm_file_list="${host_xm_file_list} $f" ;;
1083 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1084 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1089 for f in $build_xm_file; do
1092 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1093 auto-build.h | auto-host.h )
1094 build_xm_file_list="${build_xm_file_list} $f" ;;
1096 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1097 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1101 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1102 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1103 CROSS= AC_SUBST(CROSS)
1104 ALL=all.internal AC_SUBST(ALL)
1105 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1106 if test x$host != x$target
1108 CROSS="-DCROSS_COMPILE"
1110 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1111 case "$host","$target" in
1112 i?86-*-*,x86_64-*-* \
1113 | powerpc*-*-*,powerpc64*-*-*)
1114 CROSS="$CROSS -DNATIVE_CROSS" ;;
1118 # If this is a cross-compiler that does not
1119 # have its own set of headers then define
1122 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1123 # This prevents libgcc2 from containing any code which requires libc
1126 if [test x$host != x$target] && [test x$with_headers = x]; then
1127 inhibit_libc=-Dinhibit_libc
1129 if [test x$with_newlib = xyes]; then
1130 inhibit_libc=-Dinhibit_libc
1133 AC_SUBST(inhibit_libc)
1135 # When building gcc with a cross-compiler, we need to adjust things so
1136 # that the generator programs are still built with the native compiler.
1137 # Also, we cannot run fixincludes or fix-header.
1138 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1141 # These are the normal (build=host) settings:
1142 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1143 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1144 HOST_CC='$(CC)' AC_SUBST(HOST_CC)
1145 HOST_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(HOST_CFLAGS)
1147 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1148 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1150 # And these apply if build != host.
1151 if test x$build != x$host
1154 BUILD_PREFIX_1=build-
1155 HOST_CC='$(CC_FOR_BUILD)'
1156 HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1162 # Expand extra_headers to include complete path.
1163 # This substitutes for lots of t-* files.
1165 if test "x$extra_headers" = x
1168 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1169 for file in $extra_headers;
1171 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1175 if test x$use_collect2 = xno; then
1179 # Add a definition of USE_COLLECT2 if system wants one.
1180 if test x$use_collect2 != x
1182 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1183 xm_defines="${xm_defines} USE_COLLECT2"
1186 # If we have gas in the build tree, make a link to it.
1187 if test -f ../gas/Makefile; then
1188 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1191 # If we have nm and objdump in the build tree, make a link to them.
1192 if test -f ../binutils/Makefile; then
1193 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1194 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1197 # If we have ld in the build tree, make a link to it.
1198 if test -f ../ld/Makefile; then
1199 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1202 # Figure out what assembler we will be using.
1203 AC_MSG_CHECKING(what assembler to use)
1205 gcc_cv_gas_major_version=
1206 gcc_cv_gas_minor_version=
1207 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1208 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1209 if test -x "$DEFAULT_ASSEMBLER"; then
1210 gcc_cv_as="$DEFAULT_ASSEMBLER"
1211 elif test -x "$AS"; then
1213 elif test -x as$host_exeext; then
1214 # Build using assembler in the current directory.
1215 gcc_cv_as=./as$host_exeext
1216 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1217 # Single tree build which includes gas.
1218 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
1221 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1223 if test x$gcc_cv_gas_version != x; then
1228 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1229 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1230 gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.[0-9]*\.\([0-9]*\)"`
1234 if test "x$gcc_cv_as" = x; then
1235 # Search the same directories that the installed compiler will
1236 # search. Else we may find the wrong assembler and lose. If we
1237 # do not find a suitable assembler binary, then try the user's
1240 # Also note we have to check MD_EXEC_PREFIX before checking the
1241 # user's path. Unfortunately, there is no good way to get at the
1242 # value of MD_EXEC_PREFIX here. So we do a brute force search
1243 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1244 # to be fixed as part of the make/configure rewrite too.
1246 if test "x$exec_prefix" = xNONE; then
1247 if test "x$prefix" = xNONE; then
1248 test_prefix=/usr/local
1253 test_prefix=$exec_prefix
1256 # If the loop below does not find an assembler, then use whatever
1257 # one we can find in the users's path.
1259 if test "x$program_prefix" != xNONE; then
1260 gcc_cv_as=${program_prefix}as$host_exeext
1262 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1265 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1266 $test_prefix/lib/gcc-lib/$target_alias \
1267 /usr/lib/gcc/$target_alias/$gcc_version \
1268 /usr/lib/gcc/$target_alias \
1269 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1270 $test_prefix/$target_alias/bin"
1272 if test x$host = x$target; then
1273 test_dirs="$test_dirs \
1278 /bsd43/usr/lib/cmplrs/cc \
1279 /usr/cross64/usr/bin \
1280 /usr/lib/cmplrs/cc \
1281 /sysv/usr/lib/cmplrs/cc \
1282 /svr4/usr/lib/cmplrs/cc \
1286 for dir in $test_dirs; do
1287 if test -x $dir/as$host_exeext; then
1288 gcc_cv_as=$dir/as$host_exeext
1293 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1294 AC_MSG_RESULT("newly built gas")
1296 AC_MSG_RESULT($gcc_cv_as)
1299 # Figure out what linker we will be using.
1300 AC_MSG_CHECKING(what linker to use)
1302 gcc_cv_gld_major_version=
1303 gcc_cv_gld_minor_version=
1304 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1305 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1306 if test -x "$DEFAULT_LINKER"; then
1307 gcc_cv_ld="$DEFAULT_LINKER"
1308 elif test -x "$LD"; then
1310 elif test -x ld$host_exeext; then
1311 # Build using linker in the current directory.
1312 gcc_cv_ld=./ld$host_exeext
1313 elif test -f $gcc_cv_ld_gld_srcdir/configure.in -a -f ../ld/Makefile; then
1314 # Single tree build which includes ld.
1315 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
1318 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1320 if test x$gcc_cv_gld_version != x; then
1325 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1326 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1330 if test "x$gcc_cv_ld" = x; then
1331 # Search the same directories that the installed compiler will
1332 # search. Else we may find the wrong linker and lose. If we
1333 # do not find a suitable linker binary, then try the user's
1336 # Also note we have to check MD_EXEC_PREFIX before checking the
1337 # user's path. Unfortunately, there is no good way to get at the
1338 # value of MD_EXEC_PREFIX here. So we do a brute force search
1339 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1340 # to be fixed as part of the make/configure rewrite too.
1342 if test "x$exec_prefix" = xNONE; then
1343 if test "x$prefix" = xNONE; then
1344 test_prefix=/usr/local
1349 test_prefix=$exec_prefix
1352 # If the loop below does not find an linker, then use whatever
1353 # one we can find in the users's path.
1355 if test "x$program_prefix" != xNONE; then
1356 gcc_cv_ld=${program_prefix}ld$host_exeext
1358 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1361 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1362 $test_prefix/lib/gcc-lib/$target_alias \
1363 /usr/lib/gcc/$target_alias/$gcc_version \
1364 /usr/lib/gcc/$target_alias \
1365 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1366 $test_prefix/$target_alias/bin"
1368 if test x$host = x$target; then
1369 test_dirs="$test_dirs \
1374 /bsd43/usr/lib/cmplrs/cc \
1375 /usr/cross64/usr/bin \
1376 /usr/lib/cmplrs/cc \
1377 /sysv/usr/lib/cmplrs/cc \
1378 /svr4/usr/lib/cmplrs/cc \
1382 for dir in $test_dirs; do
1383 if test -x $dir/ld$host_exeext; then
1384 gcc_cv_ld=$dir/ld$host_exeext
1389 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1390 AC_MSG_RESULT("newly built ld")
1392 AC_MSG_RESULT($gcc_cv_ld)
1395 # Figure out what nm we will be using.
1396 AC_MSG_CHECKING(what nm to use)
1397 if test -x nm$host_exeext; then
1398 gcc_cv_nm=./nm$host_exeext
1399 elif test "x$program_prefix" != xNONE; then
1400 gcc_cv_nm=${program_prefix}nm$host_exeext
1402 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1404 AC_MSG_RESULT($gcc_cv_nm)
1406 # Figure out what objdump we will be using.
1407 AC_MSG_CHECKING(what objdump to use)
1408 if test -x objdump$host_exeext; then
1409 gcc_cv_objdump=./objdump$host_exeext
1410 elif test "x$program_prefix" != xNONE; then
1411 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1413 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1415 AC_MSG_RESULT($gcc_cv_objdump)
1417 # Figure out what assembler alignment features are present.
1418 AC_MSG_CHECKING(assembler alignment features)
1419 gcc_cv_as_alignment_features=none
1420 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1421 # Gas version 2.6 and later support for .balign and .p2align.
1422 # bytes to skip when using .p2align.
1423 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1424 gcc_cv_as_alignment_features=".balign and .p2align"
1425 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1427 # Gas version 2.8 and later support specifying the maximum
1428 # bytes to skip when using .p2align.
1429 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1430 gcc_cv_as_alignment_features=".p2align including maximum skip"
1431 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1433 elif test x$gcc_cv_as != x; then
1434 # Check if we have .balign and .p2align
1435 echo ".balign 4" > conftest.s
1436 echo ".p2align 2" >> conftest.s
1437 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1438 gcc_cv_as_alignment_features=".balign and .p2align"
1439 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1441 rm -f conftest.s conftest.o
1442 # Check if specifying the maximum bytes to skip when
1443 # using .p2align is supported.
1444 echo ".p2align 4,,7" > conftest.s
1445 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1446 gcc_cv_as_alignment_features=".p2align including maximum skip"
1447 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1449 rm -f conftest.s conftest.o
1451 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1453 AC_MSG_CHECKING(assembler subsection support)
1454 gcc_cv_as_subsections=no
1455 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1456 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1457 gcc_cv_as_subsections="working .subsection -1"
1459 elif test x$gcc_cv_as != x; then
1460 # Check if we have .subsection
1461 echo ".subsection 1" > conftest.s
1462 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1463 gcc_cv_as_subsections=".subsection"
1464 if test x$gcc_cv_nm != x; then
1465 cat > conftest.s <<EOF
1466 conftest_label1: .word 0
1468 conftest_label2: .word 0
1471 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1472 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1473 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1474 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1477 gcc_cv_as_subsections="working .subsection -1"
1482 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1484 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1485 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1486 [Define if your assembler supports .subsection and .subsection -1 starts
1487 emitting at the beginning of your section.])
1489 AC_MSG_RESULT($gcc_cv_as_subsections)
1491 AC_MSG_CHECKING(assembler weak support)
1493 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1494 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1495 gcc_cv_as_weak="yes"
1497 elif test x$gcc_cv_as != x; then
1498 # Check if we have .weak
1499 echo " .weak foobar" > conftest.s
1500 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1501 gcc_cv_as_weak="yes"
1503 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1505 if test x"$gcc_cv_as_weak" = xyes; then
1506 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1508 AC_MSG_RESULT($gcc_cv_as_weak)
1510 AC_MSG_CHECKING(assembler hidden support)
1512 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1513 if test "$gcc_cv_gas_major_version" -eq 2 \
1514 -a "$gcc_cv_gas_minor_version" -eq 12 \
1515 -a "$gcc_cv_gas_patch_version" -ge 1 \
1516 -o "$gcc_cv_gas_major_version" -eq 2 \
1517 -a "$gcc_cv_gas_minor_version" -gt 12 \
1518 -o "$gcc_cv_gas_major_version" -gt 2 \
1519 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1520 gcc_cv_as_hidden="yes"
1522 elif test x$gcc_cv_as != x; then
1523 # Check if we have .hidden
1524 echo " .hidden foobar" > conftest.s
1525 echo "foobar:" >> conftest.s
1526 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1527 gcc_cv_as_hidden="yes"
1529 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1531 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1532 # This is irritatingly difficult to feature test for. Look for
1533 # the date string after the version number.
1534 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1535 if echo "$ld_ver" | grep GNU > /dev/null; then
1537 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([ ].*\|\)$,\1,p'`
1538 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1539 if test 0"$ld_date" -lt 20020404; then
1540 if test -n "$ld_date"; then
1541 # If there was date string, but was earlier than 2002-04-04, fail
1542 gcc_cv_as_hidden="no"
1543 elif test -z "$ld_vers"; then
1544 # If there was no date string nor ld version number, something is wrong
1545 gcc_cv_as_hidden="no"
1547 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1548 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1549 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1550 test -z "$ld_vers_patch" && ld_vers_patch=0
1551 if test "$ld_vers_major" -lt 2; then
1552 gcc_cv_as_hidden="no"
1553 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1554 gcc_cv_as_hidden="no"
1555 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1556 -a "$ld_vers_patch" -eq 0; then
1557 gcc_cv_as_hidden="no"
1564 if test x"$gcc_cv_as_hidden" = xyes; then
1565 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1566 [Define if your assembler supports .hidden.])
1568 AC_MSG_RESULT($gcc_cv_as_hidden)
1569 libgcc_visibility=$gcc_cv_as_hidden
1570 AC_SUBST(libgcc_visibility)
1572 AC_MSG_CHECKING(assembler leb128 support)
1574 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1575 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 11 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1576 gcc_cv_as_leb128="yes"
1578 elif test x$gcc_cv_as != x; then
1579 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1580 cat > conftest.s <<EOF
1588 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1589 gcc_cv_as_leb128="yes"
1591 # GAS versions before 2.11 do not support uleb128,
1592 # despite appearing to.
1593 # ??? There exists an elf-specific test that will crash
1594 # the assembler. Perhaps it's better to figure out whether
1595 # arbitrary sections are supported and try the test.
1596 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1597 if echo "$as_ver" | grep GNU > /dev/null; then
1599 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1600 as_major=`echo $as_ver | sed 's/\..*//'`
1601 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1603 if test $as_major -eq 2 -a $as_minor -lt 11; then
1604 gcc_cv_as_leb128="no"
1608 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1610 if test x"$gcc_cv_as_leb128" = xyes; then
1611 AC_DEFINE(HAVE_AS_LEB128, 1,
1612 [Define if your assembler supports .uleb128.])
1614 AC_MSG_RESULT($gcc_cv_as_leb128)
1616 AC_MSG_CHECKING(assembler eh_frame optimization)
1617 gcc_cv_as_eh_frame=no
1618 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1619 if test "$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
1620 gcc_cv_as_eh_frame="yes"
1622 elif test x$gcc_cv_as != x; then
1623 # Check if this is GAS.
1624 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1625 rm -f a.out 2> /dev/null
1626 if echo "$as_ver" | grep GNU > /dev/null; then
1627 # Versions up to and including 2.11.0 may mis-optimize
1628 # .eh_frame data. Try something.
1629 cat > conftest.s <<EOF
1636 .section .eh_frame,"aw",@progbits
1638 .4byte .LECIE1-.LSCIE1
1652 .4byte .LEFDE1-.LASFDE1
1654 .4byte .LASFDE1-__FRAME_BEGIN__
1663 cat > conftest.lit <<EOF
1664 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1665 0010 01000000 12000000 18000000 00000000 ................
1666 0020 08000000 04080000 0044 .........D
1668 cat > conftest.big <<EOF
1669 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1670 0010 00000001 00000012 00000018 00000000 ................
1671 0020 00000008 04000000 0844 .........D
1673 # If the assembler didn't choke, and we can objdump,
1674 # and we got the correct data, then succeed.
1675 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1676 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1677 | tail -3 > conftest.got \
1678 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1679 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1681 gcc_cv_as_eh_frame="yes"
1683 gcc_cv_as_eh_frame="bad"
1684 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1685 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1686 [Define if your assembler mis-optimizes .eh_frame data.])
1692 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1694 AC_MSG_CHECKING(assembler section merging support)
1695 gcc_cv_as_shf_merge=no
1696 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1697 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1698 gcc_cv_as_shf_merge=yes
1700 elif test x$gcc_cv_as != x; then
1701 # Check if we support SHF_MERGE sections
1702 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1703 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1704 gcc_cv_as_shf_merge=yes
1706 rm -f conftest.s conftest.o
1708 if test x"$gcc_cv_as_shf_merge" = xyes; then
1709 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1710 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1712 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1714 AC_MSG_CHECKING(assembler thread-local storage support)
1723 .section ".tdata","awT",@progbits
1726 ldq $27,__tls_get_addr($29) !literal!1
1727 lda $16,foo($29) !tlsgd!1
1728 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1729 ldq $27,__tls_get_addr($29) !literal!2
1730 lda $16,foo($29) !tlsldm!2
1731 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
1732 ldq $1,foo($29) !gotdtprel
1733 ldah $2,foo($29) !dtprelhi
1734 lda $3,foo($2) !dtprello
1735 lda $4,foo($29) !dtprel
1736 ldq $1,foo($29) !gottprel
1737 ldah $2,foo($29) !tprelhi
1738 lda $3,foo($2) !tprello
1739 lda $4,foo($29) !tprel'
1746 .section ".tdata","awT",@progbits
1750 leal foo@TLSGD(,%ebx,1), %eax
1751 leal foo@TLSLDM(%ebx), %eax
1752 leal foo@DTPOFF(%eax), %edx
1753 movl foo@GOTTPOFF(%ebx), %eax
1754 subl foo@GOTTPOFF(%ebx), %eax
1755 movl $foo@TPOFF, %eax
1756 subl $foo@TPOFF, %eax
1757 leal foo@NTPOFF(%ecx), %eax'
1763 .section ".tdata","awT",@progbits
1766 addl r16 = @ltoff(@dtpmod(foo#)), gp
1767 addl r17 = @ltoff(@dtprel(foo#)), gp
1768 addl r18 = @ltoff(@tprel(foo#)), gp
1769 addl r19 = @dtprel(foo#), gp
1770 adds r21 = @dtprel(foo#), r13
1771 movl r23 = @dtprel(foo#)
1772 addl r20 = @tprel(foo#), gp
1773 adds r22 = @tprel(foo#), r13
1774 movl r24 = @tprel(foo#)'
1779 if test -z "$tls_first_major"; then
1781 elif test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1783 if test "$gcc_cv_gas_major_version" -eq "$tls_first_major" \
1784 -a "$gcc_cv_gas_minor_version" -ge "$tls_first_minor" \
1785 -o "$gcc_cv_gas_major_version" -gt "$tls_first_major"; then
1788 elif test x$gcc_cv_as != x; then
1789 echo "$conftest_s" > conftest.s
1790 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
1794 rm -f conftest.s conftest.o
1796 if test "$gcc_cv_as_tls" = yes; then
1797 AC_DEFINE(HAVE_AS_TLS, 1,
1798 [Define if your assembler supports thread-local storage.])
1800 AC_MSG_RESULT($gcc_cv_as_tls)
1803 # All TARGET_ABI_OSF targets.
1804 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
1805 AC_CACHE_CHECK([assembler supports explicit relocations],
1806 gcc_cv_as_explicit_relocs, [
1807 gcc_cv_as_explicit_relocs=unknown
1808 if test x$gcc_cv_gas_major_version != x \
1809 -a x$gcc_cv_gas_minor_version != x
1811 if test "$gcc_cv_gas_major_version" -eq 2 \
1812 -a "$gcc_cv_gas_minor_version" -ge 12 \
1813 -o "$gcc_cv_gas_major_version" -gt 2; then
1814 gcc_cv_as_explicit_relocs=yes
1816 elif test x$gcc_cv_as != x; then
1817 cat > conftest.s << 'EOF'
1820 extbl $3, $2, $3 !lituse_bytoff!1
1821 ldq $2, a($29) !literal!1
1822 ldq $4, b($29) !literal!2
1823 ldq_u $3, 0($2) !lituse_base!1
1824 ldq $27, f($29) !literal!5
1825 jsr $26, ($27), f !lituse_jsr!5
1826 ldah $29, 0($26) !gpdisp!3
1827 lda $0, c($29) !gprel
1828 ldah $1, d($29) !gprelhigh
1829 lda $1, d($1) !gprellow
1830 lda $29, 0($29) !gpdisp!3
1832 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1833 gcc_cv_as_explicit_relocs=yes
1835 gcc_cv_as_explicit_relocs=no
1837 rm -f conftest.s conftest.o
1840 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
1841 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
1842 [Define if your assembler supports explicit relocations.])
1846 AC_CACHE_CHECK([assembler .register pseudo-op support],
1847 gcc_cv_as_register_pseudo_op, [
1848 gcc_cv_as_register_pseudo_op=unknown
1849 if test x$gcc_cv_as != x; then
1850 # Check if we have .register
1851 echo ".register %g2, #scratch" > conftest.s
1852 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1853 gcc_cv_as_register_pseudo_op=yes
1855 gcc_cv_as_register_pseudo_op=no
1857 rm -f conftest.s conftest.o
1860 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1861 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1862 [Define if your assembler supports .register.])
1865 AC_CACHE_CHECK([assembler supports -relax],
1866 gcc_cv_as_relax_opt, [
1867 gcc_cv_as_relax_opt=unknown
1868 if test x$gcc_cv_as != x; then
1869 # Check if gas supports -relax
1870 echo ".text" > conftest.s
1871 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1872 gcc_cv_as_relax_opt=yes
1874 gcc_cv_as_relax_opt=no
1876 rm -f conftest.s conftest.o
1879 if test "x$gcc_cv_as_relax_opt" = xyes; then
1880 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1881 [Define if your assembler supports -relax option.])
1884 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
1885 gcc_cv_as_sparc_ua_pcrel, [
1886 gcc_cv_as_sparc_ua_pcrel=unknown
1887 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
1888 gcc_cv_as_sparc_ua_pcrel=no
1889 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
1890 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1891 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
1892 gcc_cv_as_sparc_ua_pcrel=yes
1894 rm -f conftest.s conftest.o conftest
1897 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1898 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
1899 [Define if your assembler and linker support unaligned PC relative relocs.])
1902 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
1903 gcc_cv_as_sparc_ua_pcrel_hidden, [
1904 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1905 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
1906 if test x$gcc_cv_objdump != x; then
1907 gcc_cv_as_sparc_ua_pcrel_hidden=no
1908 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
1909 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
1910 echo "foo: .skip 4" >> conftest.s
1911 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1912 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
1913 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
1914 | grep ' 31000000 07323334' > /dev/null 2>&1; then
1915 if $gcc_cv_objdump -R conftest 2> /dev/null \
1916 | grep 'DISP32' > /dev/null 2>&1; then
1919 gcc_cv_as_sparc_ua_pcrel_hidden=yes
1923 rm -f conftest.s conftest.o conftest
1925 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
1928 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
1929 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
1930 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
1933 if test "x$gcc_cv_as_flags64" != xno; then
1934 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1935 gcc_cv_as_offsetable_lo10, [
1936 gcc_cv_as_offsetable_lo10=unknown
1937 if test "x$gcc_cv_as" != x; then
1938 # Check if assembler has offsetable %lo()
1939 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1940 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1941 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1943 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1944 > /dev/null 2>&1; then
1945 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1946 gcc_cv_as_offsetable_lo10=no
1948 gcc_cv_as_offsetable_lo10=yes
1951 gcc_cv_as_offsetable_lo10=no
1953 rm -f conftest.s conftest.o conftest1.s conftest1.o
1956 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1957 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1958 [Define if your assembler supports offsetable %lo().])
1965 i[34567]86-*-* | x86_64-*-*)
1967 AC_MSG_CHECKING(assembler instructions)
1968 gcc_cv_as_instructions=
1969 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1970 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1971 gcc_cv_as_instructions="filds fists"
1973 elif test x$gcc_cv_as != x; then
1974 set "filds fists" "filds mem; fists mem"
1977 echo "$2" > conftest.s
1978 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1979 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1983 rm -f conftest.s conftest.o
1985 if test x"$gcc_cv_as_instructions" != x; then
1986 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1988 AC_MSG_RESULT($gcc_cv_as_instructions)
1990 AC_MSG_CHECKING(assembler GOTOFF in data directives)
1991 gcc_cv_as_gotoff_in_data=no
1992 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1994 if test "$gcc_cv_gas_major_version" -eq 2 \
1995 -a "$gcc_cv_gas_minor_version" -ge 11 \
1996 -o "$gcc_cv_gas_major_version" -gt 2; then
1997 gcc_cv_as_gotoff_in_data=yes
1999 elif test x$gcc_cv_as != x; then
2000 cat > conftest.s <<EOF
2007 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2008 gcc_cv_as_gotoff_in_data=yes
2011 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2012 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2013 [Define true if the assembler supports '.long foo@GOTOFF'.])
2014 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2018 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2019 gcc_cv_as_dwarf2_debug_line=no
2020 # ??? Not all targets support dwarf2 debug_line, even within a version
2021 # of gas. Moreover, we need to emit a valid instruction to trigger any
2022 # info to the output file. So, as supported targets are added to gas 2.11,
2023 # add some instruction here to (also) show we expect this might work.
2024 # ??? Once 2.11 is released, probably need to add first known working
2025 # version to the per-target configury.
2027 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-* | hppa*-*-*)
2034 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2036 if test "$gcc_cv_gas_major_version" -eq 2 \
2037 -a "$gcc_cv_gas_minor_version" -ge 11 \
2038 -o "$gcc_cv_gas_major_version" -gt 2 \
2039 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2040 && test x"$insn" != x ; then
2041 gcc_cv_as_dwarf2_debug_line="yes"
2043 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2044 echo ' .file 1 "conftest.s"' > conftest.s
2045 echo ' .loc 1 3 0' >> conftest.s
2046 echo " $insn" >> conftest.s
2047 # ??? This fails with non-gnu grep.
2048 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2049 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2050 # The .debug_line file table must be in the exact order that
2051 # we specified the files, since these indices are also used
2052 # by DW_AT_decl_file. Approximate this test by testing if
2053 # the assembler bitches if the same index is assigned twice.
2054 echo ' .file 1 "foo.s"' > conftest.s
2055 echo ' .file 1 "bar.s"' >> conftest.s
2056 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2058 gcc_cv_as_dwarf2_debug_line="no"
2060 gcc_cv_as_dwarf2_debug_line="yes"
2063 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2065 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2066 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2067 [Define if your assembler supports dwarf2 .file/.loc directives,
2068 and preserves file table indices exactly as given.])
2070 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2072 AC_MSG_CHECKING(assembler --gdwarf2 support)
2073 gcc_cv_as_gdwarf2_flag=no
2074 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2076 if test "$gcc_cv_gas_major_version" -eq 2 \
2077 -a "$gcc_cv_gas_minor_version" -ge 11 \
2078 -o "$gcc_cv_gas_major_version" -gt 2 \
2079 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2080 && test x"$insn" != x ; then
2081 gcc_cv_as_gdwarf2_debug_flag="yes"
2083 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2084 echo '' > conftest.s
2085 # ??? This fails with non-gnu grep.
2086 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2088 gcc_cv_as_gdwarf2_flag="yes"
2090 rm -f conftest.s conftest.o
2092 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2093 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2094 [Define if your assembler supports the --gdwarf2 option.])
2096 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2098 AC_MSG_CHECKING(assembler --gstabs support)
2099 gcc_cv_as_gstabs_flag=no
2100 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2102 if test "$gcc_cv_gas_major_version" -eq 2 \
2103 -a "$gcc_cv_gas_minor_version" -ge 11 \
2104 -o "$gcc_cv_gas_major_version" -gt 2 \
2105 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2106 && test x"$insn" != x ; then
2107 gcc_cv_as_gstabs_debug_flag="yes"
2109 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2110 echo '' > conftest.s
2111 # ??? This fails with non-gnu grep.
2112 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2113 gcc_cv_as_gstabs_flag="yes"
2115 rm -f conftest.s conftest.o
2117 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2118 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2119 [Define if your assembler supports the --gstabs option.])
2121 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2123 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2124 gcc_cv_ld_eh_frame_hdr=no
2125 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2126 if test "$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
2127 gcc_cv_ld_eh_frame_hdr=yes
2129 elif test x$gcc_cv_ld != x; then
2130 # Check if linker supports --eh-frame-hdr option
2131 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2132 gcc_cv_ld_eh_frame_hdr=yes
2135 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2136 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2137 [Define if your linker supports --eh-frame-hdr option.])
2139 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2141 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
2142 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2145 # Figure out what language subdirectories are present.
2146 # Look if the user specified --enable-languages="..."; if not, use
2147 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2149 # NB: embedded tabs in this IF block -- do not untabify
2150 if test x"${enable_languages+set}" != xset; then
2151 if test x"${LANGUAGES+set}" = xset; then
2152 enable_languages="${LANGUAGES}"
2153 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2156 enable_languages=all
2159 if test x"${enable_languages}" = x ||
2160 test x"${enable_languages}" = xyes;
2162 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2165 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2167 # First scan to see if an enabled language requires some other language.
2168 # We assume that a given config-lang.in will list all the language
2169 # front ends it requires, even if some are required indirectly.
2170 for lang in ${srcdir}/*/config-lang.in ..
2175 # The odd quoting in the next line works around
2176 # an apparent bug in bash 1.12 on linux.
2178 ${srcdir}/[*]/config-lang.in)
2181 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2182 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2183 for other in $this_lang_requires
2185 case ,${enable_languages}, in
2191 enable_languages="$enable_languages,$other"
2201 for lang in ${srcdir}/*/config-lang.in ..
2205 # The odd quoting in the next line works around
2206 # an apparent bug in bash 1.12 on linux.
2208 ${srcdir}/[*]/config-lang.in) ;;
2210 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2211 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2212 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2213 if test "x$lang_alias" = x
2215 echo "$lang doesn't set \$language." 1>&2
2218 case ${build_by_default},${enable_languages}, in
2219 *,$lang_alias,*) add_this_lang=yes ;;
2220 no,*) add_this_lang=no ;;
2221 *,all,*) add_this_lang=yes ;;
2222 *) add_this_lang=no ;;
2224 if test x"${add_this_lang}" = xyes; then
2226 ${srcdir}/ada/config-lang.in)
2227 if test x$have_gnat = xyes ; then
2228 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2232 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2241 # Make gthr-default.h if we have a thread file.
2243 if test $thread_file != single; then
2244 rm -f gthr-default.h
2245 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2246 gthread_flags=-DHAVE_GTHR_DEFAULT
2248 AC_SUBST(gthread_flags)
2250 # Find out what GC implementation we want, or may, use.
2252 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2259 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2264 echo "Using $GGC for garbage collection."
2266 # Use the system's zlib library.
2268 zlibinc="-I\$(srcdir)/../zlib"
2269 AC_ARG_WITH(system-zlib,
2270 [ --with-system-zlib use installed libz],
2277 dnl Very limited version of automake's enable-maintainer-mode
2279 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2280 dnl maintainer-mode is disabled by default
2281 AC_ARG_ENABLE(maintainer-mode,
2282 [ --enable-maintainer-mode
2283 enable make rules and dependencies not useful
2284 (and sometimes confusing) to the casual installer],
2285 maintainer_mode=$enableval,
2288 AC_MSG_RESULT($maintainer_mode)
2290 if test "$maintainer_mode" = "yes"; then
2297 # With Setjmp/Longjmp based exception handling.
2298 AC_ARG_ENABLE(sjlj-exceptions,
2299 [ --enable-sjlj-exceptions
2300 arrange to use setjmp/longjmp exception handling],
2301 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
2302 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
2303 [Define 0/1 to force the choice for exception handling model.])])
2305 # Make empty files to contain the specs and options for each language.
2306 # Then add #include lines to for a compiler that has specs and/or options.
2311 for subdir in . $subdirs
2313 if test -f $srcdir/$subdir/lang-specs.h; then
2314 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2316 if test -f $srcdir/$subdir/lang-options.h; then
2317 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2319 if test -f $srcdir/$subdir/$subdir-tree.def; then
2320 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2324 # These (without "all_") are set in each config-lang.in.
2325 # `language' must be a single word so is spelled singularly.
2330 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2331 # List of language makefile fragments.
2333 # Files for gengtype
2336 # Add the language fragments.
2337 # Languages are added via two mechanisms. Some information must be
2338 # recorded in makefile variables, these are defined in config-lang.in.
2339 # We accumulate them and plug them into the main Makefile.
2340 # The other mechanism is a set of hooks for each of the main targets
2341 # like `clean', `install', etc.
2343 language_fragments="Make-lang"
2344 language_hooks="Make-hooks"
2346 for s in .. $subdirs
2356 . ${srcdir}/$s/config-lang.in
2357 if test "x$language" = x
2359 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2362 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2363 if test -f ${srcdir}/$s/Makefile.in
2364 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2366 all_languages="$all_languages $language"
2367 if test "x$boot_language" = xyes
2369 all_boot_languages="$all_boot_languages $language"
2371 all_compilers="$all_compilers $compilers"
2372 all_stagestuff="$all_stagestuff $stagestuff"
2373 all_outputs="$all_outputs $outputs"
2374 all_gtfiles="$all_gtfiles $gtfiles"
2379 for language in .. $all_languages
2381 if test $language != ".."
2383 check_languages="$check_languages check-$language"
2387 # Since we can't use `::' targets, we link each language in
2388 # with a set of hooks, reached indirectly via lang.${target}.
2392 target_list="all.build all.cross start.encap rest.encap \
2393 info dvi generated-manpages \
2394 install-normal install-common install-info install-man \
2396 mostlyclean clean distclean extraclean maintainer-clean \
2397 stage1 stage2 stage3 stage4"
2398 for t in $target_list
2401 for lang in .. $all_languages
2403 if test $lang != ".."; then
2407 echo "lang.$t: $x" >> Make-hooks
2412 echo "dir ." > .gdbinit
2413 echo "dir ${srcdir}" >> .gdbinit
2414 if test x$gdb_needs_out_file_path = xyes
2416 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2418 if test "x$subdirs" != x; then
2421 echo "dir ${srcdir}/$s" >> .gdbinit
2424 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2426 # Define variables host_canonical and build_canonical
2427 # because some Cygnus local changes in the Makefile depend on them.
2428 build_canonical=${build}
2429 host_canonical=${host}
2431 if test "${host}" != "${target}" ; then
2432 target_subdir=${target_alias}/
2434 AC_SUBST(build_canonical)
2435 AC_SUBST(host_canonical)
2436 AC_SUBST(target_subdir)
2438 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2439 # absolute path for gcc_tooldir based on inserting the number of up-directory
2440 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2441 # $(libsubdir)/@(unlibsubdir) based path.
2442 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2443 # make and thus we'd get different behavior depending on where we built the
2445 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2446 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2448 changequote(<<, >>)dnl
2449 # An explanation of the sed strings:
2450 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2451 # -e 's|/$||' match a trailing forward slash and eliminates it
2452 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2453 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2455 # (*) Note this pattern overwrites the first character of the string
2456 # with a forward slash if one is not already present. This is not a
2457 # problem because the exact names of the sub-directories concerned is
2458 # unimportant, just the number of them matters.
2460 # The practical upshot of these patterns is like this:
2462 # prefix exec_prefix result
2463 # ------ ----------- ------
2465 # /foo/ /foo/bar ../
2466 # /foo /foo/bar/ ../
2467 # /foo/ /foo/bar/ ../
2468 # /foo /foo/bar/ugg ../../
2471 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2472 changequote([, ])dnl
2474 AC_SUBST(gcc_tooldir)
2477 # Find a directory in which to install a shared libgcc.
2479 AC_ARG_ENABLE(version-specific-runtime-libs,
2480 [ --enable-version-specific-runtime-libs
2481 specify that runtime libraries should be
2482 installed in a compiler-specific directory])
2484 AC_ARG_WITH(slibdir,
2485 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2486 slibdir="$with_slibdir",
2487 if test "${enable_version_specific_runtime_libs+set}" = set; then
2488 slibdir='$(libsubdir)'
2489 elif test "$host" != "$target"; then
2490 slibdir='$(build_tooldir)/lib'
2496 # Nothing to do for FLOAT_H, float_format already handled.
2497 objdir=`${PWDCMD-pwd}`
2500 # Process the language and host/target makefile fragments.
2501 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2503 # Substitute configuration variables
2505 AC_SUBST(all_boot_languages)
2506 AC_SUBST(all_compilers)
2507 AC_SUBST(all_gtfiles)
2508 AC_SUBST(all_lang_makefiles)
2509 AC_SUBST(all_languages)
2510 AC_SUBST(all_stagestuff)
2511 AC_SUBST(build_exeext)
2512 AC_SUBST(build_install_headers_dir)
2513 AC_SUBST(build_xm_file_list)
2514 AC_SUBST(build_xm_file)
2515 AC_SUBST(build_xm_defines)
2516 AC_SUBST(check_languages)
2517 AC_SUBST(cc_set_by_configure)
2518 AC_SUBST(quoted_cc_set_by_configure)
2519 AC_SUBST(cpp_install_dir)
2520 AC_SUBST(dep_host_xmake_file)
2521 AC_SUBST(dep_tmake_file)
2522 AC_SUBST(extra_headers_list)
2523 AC_SUBST(extra_objs)
2524 AC_SUBST(extra_parts)
2525 AC_SUBST(extra_passes)
2526 AC_SUBST(extra_programs)
2527 AC_SUBST(float_h_file)
2528 AC_SUBST(gcc_config_arguments)
2529 AC_SUBST(gcc_gxx_include_dir)
2530 AC_SUBST(libstdcxx_incdir)
2531 AC_SUBST(gcc_version)
2532 AC_SUBST(gcc_version_full)
2533 AC_SUBST(gcc_version_trigger)
2534 AC_SUBST(host_exeext)
2535 AC_SUBST(host_extra_gcc_objs)
2536 AC_SUBST(host_xm_file_list)
2537 AC_SUBST(host_xm_file)
2538 AC_SUBST(host_xm_defines)
2540 AC_SUBST(lang_options_files)
2541 AC_SUBST(lang_specs_files)
2542 AC_SUBST(lang_tree_files)
2543 AC_SUBST(local_prefix)
2545 AC_SUBST(objc_boehm_gc)
2547 AC_SUBST(out_object_file)
2548 AC_SUBST(stage_prefix_set_by_configure)
2549 AC_SUBST(quoted_stage_prefix_set_by_configure)
2550 AC_SUBST(symbolic_link)
2551 AC_SUBST(thread_file)
2552 AC_SUBST(tm_file_list)
2554 AC_SUBST(tm_p_file_list)
2557 AC_SUBST(xm_defines)
2558 AC_SUBST(target_alias)
2559 AC_SUBST(c_target_objs)
2560 AC_SUBST(cxx_target_objs)
2561 AC_SUBST(target_cpu_default)
2563 AC_SUBST_FILE(target_overrides)
2564 AC_SUBST_FILE(host_overrides)
2565 AC_SUBST_FILE(language_fragments)
2566 AC_SUBST_FILE(language_hooks)
2568 # Echo that links are built
2569 if test x$host = x$target
2577 if test x$host != x$build
2579 str3=" on a $build system"
2582 if test "x$str2" != x || test "x$str3" != x
2587 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2589 if test "x$str2" != x || test "x$str3" != x
2591 echo " ${str2}${str3}." 1>&2
2594 # Truncate the target if necessary
2595 if test x$host_truncate_target != x; then
2596 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2599 # Configure the subdirectories
2600 # AC_CONFIG_SUBDIRS($subdirs)
2602 # Create the Makefile
2603 # and configure language subdirectories
2604 AC_OUTPUT($all_outputs,
2606 case x$CONFIG_HEADERS in
2607 xauto-host.h:config.in)
2610 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2611 # bootstrapping and the installation procedure can still use
2612 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2613 # FLAGS_TO_PASS has been modified to solve the problem there.
2614 # This is virtually a duplicate of what happens in configure.lang; we do
2615 # an extra check to make sure this only happens if ln -s can be used.
2616 if test "$symbolic_link" = "ln -s"; then
2617 for d in .. ${subdirs} fixinc ; do
2618 if test $d != ..; then
2619 STARTDIR=`${PWDCMD-pwd}`
2621 for t in stage1 stage2 stage3 stage4 include
2624 $symbolic_link ../$t $t 2>/dev/null
2630 # Avoid having to add intl to our include paths.
2631 if test -f intl/libintl.h; then
2632 echo creating libintl.h
2633 echo '#include "intl/libintl.h"' >libintl.h
2637 symbolic_link='$symbolic_link'