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='$(CROSS_SYSTEM_HEADER_DIR)'
1118 case "$host","$target" in
1119 i?86-*-*,x86_64-*-* \
1120 | powerpc*-*-*,powerpc64*-*-*)
1121 CROSS="$CROSS -DNATIVE_CROSS" ;;
1125 # If this is a cross-compiler that does not
1126 # have its own set of headers then define
1129 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1130 # This prevents libgcc2 from containing any code which requires libc
1133 if [test x$host != x$target] && [test x$with_headers = x]; then
1134 inhibit_libc=-Dinhibit_libc
1136 if [test x$with_newlib = xyes]; then
1137 inhibit_libc=-Dinhibit_libc
1140 AC_SUBST(inhibit_libc)
1142 # When building gcc with a cross-compiler, we need to adjust things so
1143 # that the generator programs are still built with the native compiler.
1144 # Also, we cannot run fixincludes or fix-header.
1145 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1148 # These are the normal (build=host) settings:
1149 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1150 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1151 HOST_CC='$(CC)' AC_SUBST(HOST_CC)
1152 HOST_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(HOST_CFLAGS)
1154 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1155 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1157 # And these apply if build != host.
1158 if test x$build != x$host
1161 BUILD_PREFIX_1=build-
1162 HOST_CC='$(CC_FOR_BUILD)'
1163 HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1169 # Expand extra_headers to include complete path.
1170 # This substitutes for lots of t-* files.
1172 if test "x$extra_headers" = x
1175 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1176 for file in $extra_headers;
1178 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1182 if test x$use_collect2 = xno; then
1186 # Add a definition of USE_COLLECT2 if system wants one.
1187 if test x$use_collect2 != x
1189 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1190 xm_defines="${xm_defines} USE_COLLECT2"
1193 # If we have gas in the build tree, make a link to it.
1194 if test -f ../gas/Makefile; then
1195 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1198 # If we have nm and objdump in the build tree, make a link to them.
1199 if test -f ../binutils/Makefile; then
1200 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1201 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1204 # If we have ld in the build tree, make a link to it.
1205 if test -f ../ld/Makefile; then
1206 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1209 # Figure out what assembler we will be using.
1210 AC_MSG_CHECKING(what assembler to use)
1212 gcc_cv_gas_major_version=
1213 gcc_cv_gas_minor_version=
1214 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1215 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1216 if test -x "$DEFAULT_ASSEMBLER"; then
1217 gcc_cv_as="$DEFAULT_ASSEMBLER"
1218 elif test -x "$AS"; then
1220 elif test -x as$host_exeext; then
1221 # Build using assembler in the current directory.
1222 gcc_cv_as=./as$host_exeext
1223 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1224 # Single tree build which includes gas.
1225 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
1228 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1230 if test x$gcc_cv_gas_version != x; then
1235 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1236 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1237 gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.[0-9]*\.\([0-9]*\)"`
1241 if test "x$gcc_cv_as" = x; then
1242 # Search the same directories that the installed compiler will
1243 # search. Else we may find the wrong assembler and lose. If we
1244 # do not find a suitable assembler binary, then try the user's
1247 # Also note we have to check MD_EXEC_PREFIX before checking the
1248 # user's path. Unfortunately, there is no good way to get at the
1249 # value of MD_EXEC_PREFIX here. So we do a brute force search
1250 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1251 # to be fixed as part of the make/configure rewrite too.
1253 if test "x$exec_prefix" = xNONE; then
1254 if test "x$prefix" = xNONE; then
1255 test_prefix=/usr/local
1260 test_prefix=$exec_prefix
1263 # If the loop below does not find an assembler, then use whatever
1264 # one we can find in the users's path.
1266 if test "x$program_prefix" != xNONE; then
1267 gcc_cv_as=${program_prefix}as$host_exeext
1269 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1272 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1273 $test_prefix/lib/gcc-lib/$target_alias \
1274 /usr/lib/gcc/$target_alias/$gcc_version \
1275 /usr/lib/gcc/$target_alias \
1276 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1277 $test_prefix/$target_alias/bin"
1279 if test x$host = x$target; then
1280 test_dirs="$test_dirs \
1285 /bsd43/usr/lib/cmplrs/cc \
1286 /usr/cross64/usr/bin \
1287 /usr/lib/cmplrs/cc \
1288 /sysv/usr/lib/cmplrs/cc \
1289 /svr4/usr/lib/cmplrs/cc \
1293 for dir in $test_dirs; do
1294 if test -x $dir/as$host_exeext; then
1295 gcc_cv_as=$dir/as$host_exeext
1300 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1301 AC_MSG_RESULT("newly built gas")
1303 AC_MSG_RESULT($gcc_cv_as)
1306 # Figure out what linker we will be using.
1307 AC_MSG_CHECKING(what linker to use)
1309 gcc_cv_gld_major_version=
1310 gcc_cv_gld_minor_version=
1311 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1312 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1313 if test -x "$DEFAULT_LINKER"; then
1314 gcc_cv_ld="$DEFAULT_LINKER"
1315 elif test -x "$LD"; then
1317 elif test -x ld$host_exeext; then
1318 # Build using linker in the current directory.
1319 gcc_cv_ld=./ld$host_exeext
1320 elif test -f $gcc_cv_ld_gld_srcdir/configure.in -a -f ../ld/Makefile; then
1321 # Single tree build which includes ld.
1322 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
1325 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1327 if test x$gcc_cv_gld_version != x; then
1332 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1333 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1337 if test "x$gcc_cv_ld" = x; then
1338 # Search the same directories that the installed compiler will
1339 # search. Else we may find the wrong linker and lose. If we
1340 # do not find a suitable linker binary, then try the user's
1343 # Also note we have to check MD_EXEC_PREFIX before checking the
1344 # user's path. Unfortunately, there is no good way to get at the
1345 # value of MD_EXEC_PREFIX here. So we do a brute force search
1346 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1347 # to be fixed as part of the make/configure rewrite too.
1349 if test "x$exec_prefix" = xNONE; then
1350 if test "x$prefix" = xNONE; then
1351 test_prefix=/usr/local
1356 test_prefix=$exec_prefix
1359 # If the loop below does not find an linker, then use whatever
1360 # one we can find in the users's path.
1362 if test "x$program_prefix" != xNONE; then
1363 gcc_cv_ld=${program_prefix}ld$host_exeext
1365 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1368 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1369 $test_prefix/lib/gcc-lib/$target_alias \
1370 /usr/lib/gcc/$target_alias/$gcc_version \
1371 /usr/lib/gcc/$target_alias \
1372 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1373 $test_prefix/$target_alias/bin"
1375 if test x$host = x$target; then
1376 test_dirs="$test_dirs \
1381 /bsd43/usr/lib/cmplrs/cc \
1382 /usr/cross64/usr/bin \
1383 /usr/lib/cmplrs/cc \
1384 /sysv/usr/lib/cmplrs/cc \
1385 /svr4/usr/lib/cmplrs/cc \
1389 for dir in $test_dirs; do
1390 if test -x $dir/ld$host_exeext; then
1391 gcc_cv_ld=$dir/ld$host_exeext
1396 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1397 AC_MSG_RESULT("newly built ld")
1399 AC_MSG_RESULT($gcc_cv_ld)
1402 # Figure out what nm we will be using.
1403 AC_MSG_CHECKING(what nm to use)
1404 if test -x nm$host_exeext; then
1405 gcc_cv_nm=./nm$host_exeext
1406 elif test "x$program_prefix" != xNONE; then
1407 gcc_cv_nm=${program_prefix}nm$host_exeext
1409 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1411 AC_MSG_RESULT($gcc_cv_nm)
1413 # Figure out what objdump we will be using.
1414 AC_MSG_CHECKING(what objdump to use)
1415 if test -x objdump$host_exeext; then
1416 gcc_cv_objdump=./objdump$host_exeext
1417 elif test "x$program_prefix" != xNONE; then
1418 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1420 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1422 AC_MSG_RESULT($gcc_cv_objdump)
1424 # Figure out what assembler alignment features are present.
1425 AC_MSG_CHECKING(assembler alignment features)
1426 gcc_cv_as_alignment_features=none
1427 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1428 # Gas version 2.6 and later support for .balign and .p2align.
1429 # bytes to skip when using .p2align.
1430 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1431 gcc_cv_as_alignment_features=".balign and .p2align"
1432 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1434 # Gas version 2.8 and later support specifying the maximum
1435 # bytes to skip when using .p2align.
1436 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1437 gcc_cv_as_alignment_features=".p2align including maximum skip"
1438 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1440 elif test x$gcc_cv_as != x; then
1441 # Check if we have .balign and .p2align
1442 echo ".balign 4" > conftest.s
1443 echo ".p2align 2" >> conftest.s
1444 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1445 gcc_cv_as_alignment_features=".balign and .p2align"
1446 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1448 rm -f conftest.s conftest.o
1449 # Check if specifying the maximum bytes to skip when
1450 # using .p2align is supported.
1451 echo ".p2align 4,,7" > conftest.s
1452 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1453 gcc_cv_as_alignment_features=".p2align including maximum skip"
1454 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1456 rm -f conftest.s conftest.o
1458 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1460 AC_MSG_CHECKING(assembler subsection support)
1461 gcc_cv_as_subsections=no
1462 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1463 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1464 gcc_cv_as_subsections="working .subsection -1"
1466 elif test x$gcc_cv_as != x; then
1467 # Check if we have .subsection
1468 echo ".subsection 1" > conftest.s
1469 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1470 gcc_cv_as_subsections=".subsection"
1471 if test x$gcc_cv_nm != x; then
1472 cat > conftest.s <<EOF
1473 conftest_label1: .word 0
1475 conftest_label2: .word 0
1478 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1479 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1480 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1481 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1484 gcc_cv_as_subsections="working .subsection -1"
1489 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1491 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1492 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1493 [Define if your assembler supports .subsection and .subsection -1 starts
1494 emitting at the beginning of your section.])
1496 AC_MSG_RESULT($gcc_cv_as_subsections)
1498 AC_MSG_CHECKING(assembler weak support)
1500 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1501 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1502 gcc_cv_as_weak="yes"
1504 elif test x$gcc_cv_as != x; then
1505 # Check if we have .weak
1506 echo " .weak foobar" > conftest.s
1507 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1508 gcc_cv_as_weak="yes"
1510 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1512 if test x"$gcc_cv_as_weak" = xyes; then
1513 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1515 AC_MSG_RESULT($gcc_cv_as_weak)
1517 AC_MSG_CHECKING(assembler hidden support)
1519 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1520 if test "$gcc_cv_gas_major_version" -eq 2 \
1521 -a "$gcc_cv_gas_minor_version" -eq 12 \
1522 -a "$gcc_cv_gas_patch_version" -ge 1 \
1523 -o "$gcc_cv_gas_major_version" -eq 2 \
1524 -a "$gcc_cv_gas_minor_version" -gt 12 \
1525 -o "$gcc_cv_gas_major_version" -gt 2 \
1526 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1527 gcc_cv_as_hidden="yes"
1529 elif test x$gcc_cv_as != x; then
1530 # Check if we have .hidden
1531 echo " .hidden foobar" > conftest.s
1532 echo "foobar:" >> conftest.s
1533 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1534 gcc_cv_as_hidden="yes"
1536 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1538 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1539 # This is irritatingly difficult to feature test for. Look for
1540 # the date string after the version number.
1541 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1542 if echo "$ld_ver" | grep GNU > /dev/null; then
1544 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([ ].*\|\)$,\1,p'`
1545 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1546 if test 0"$ld_date" -lt 20020404; then
1547 if test -n "$ld_date"; then
1548 # If there was date string, but was earlier than 2002-04-04, fail
1549 gcc_cv_as_hidden="no"
1550 elif test -z "$ld_vers"; then
1551 # If there was no date string nor ld version number, something is wrong
1552 gcc_cv_as_hidden="no"
1554 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1555 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1556 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1557 test -z "$ld_vers_patch" && ld_vers_patch=0
1558 if test "$ld_vers_major" -lt 2; then
1559 gcc_cv_as_hidden="no"
1560 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1561 gcc_cv_as_hidden="no"
1562 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1563 -a "$ld_vers_patch" -eq 0; then
1564 gcc_cv_as_hidden="no"
1571 if test x"$gcc_cv_as_hidden" = xyes; then
1572 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1573 [Define if your assembler supports .hidden.])
1575 AC_MSG_RESULT($gcc_cv_as_hidden)
1576 libgcc_visibility=$gcc_cv_as_hidden
1577 AC_SUBST(libgcc_visibility)
1579 AC_MSG_CHECKING(assembler leb128 support)
1581 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1582 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 11 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1583 gcc_cv_as_leb128="yes"
1585 elif test x$gcc_cv_as != x; then
1586 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1587 cat > conftest.s <<EOF
1595 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1596 gcc_cv_as_leb128="yes"
1598 # GAS versions before 2.11 do not support uleb128,
1599 # despite appearing to.
1600 # ??? There exists an elf-specific test that will crash
1601 # the assembler. Perhaps it's better to figure out whether
1602 # arbitrary sections are supported and try the test.
1603 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1604 if echo "$as_ver" | grep GNU > /dev/null; then
1606 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1607 as_major=`echo $as_ver | sed 's/\..*//'`
1608 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1610 if test $as_major -eq 2 -a $as_minor -lt 11; then
1611 gcc_cv_as_leb128="no"
1615 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1617 if test x"$gcc_cv_as_leb128" = xyes; then
1618 AC_DEFINE(HAVE_AS_LEB128, 1,
1619 [Define if your assembler supports .uleb128.])
1621 AC_MSG_RESULT($gcc_cv_as_leb128)
1623 AC_MSG_CHECKING(assembler eh_frame optimization)
1624 gcc_cv_as_eh_frame=no
1625 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1626 if test "$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
1627 gcc_cv_as_eh_frame="yes"
1629 elif test x$gcc_cv_as != x; then
1630 # Check if this is GAS.
1631 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1632 rm -f a.out 2> /dev/null
1633 if echo "$as_ver" | grep GNU > /dev/null; then
1634 # Versions up to and including 2.11.0 may mis-optimize
1635 # .eh_frame data. Try something.
1636 cat > conftest.s <<EOF
1643 .section .eh_frame,"aw",@progbits
1645 .4byte .LECIE1-.LSCIE1
1659 .4byte .LEFDE1-.LASFDE1
1661 .4byte .LASFDE1-__FRAME_BEGIN__
1670 cat > conftest.lit <<EOF
1671 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1672 0010 01000000 12000000 18000000 00000000 ................
1673 0020 08000000 04080000 0044 .........D
1675 cat > conftest.big <<EOF
1676 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1677 0010 00000001 00000012 00000018 00000000 ................
1678 0020 00000008 04000000 0844 .........D
1680 # If the assembler didn't choke, and we can objdump,
1681 # and we got the correct data, then succeed.
1682 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1683 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1684 | tail -3 > conftest.got \
1685 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1686 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1688 gcc_cv_as_eh_frame="yes"
1690 gcc_cv_as_eh_frame="bad"
1691 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1692 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1693 [Define if your assembler mis-optimizes .eh_frame data.])
1699 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1701 AC_MSG_CHECKING(assembler section merging support)
1702 gcc_cv_as_shf_merge=no
1703 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1704 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1705 gcc_cv_as_shf_merge=yes
1707 elif test x$gcc_cv_as != x; then
1708 # Check if we support SHF_MERGE sections
1709 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1710 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1711 gcc_cv_as_shf_merge=yes
1713 rm -f conftest.s conftest.o
1715 if test x"$gcc_cv_as_shf_merge" = xyes; then
1716 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1717 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1719 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1721 AC_MSG_CHECKING(assembler thread-local storage support)
1731 .section ".tdata","awT",@progbits
1735 leal foo@TLSGD(,%ebx,1), %eax
1736 leal foo@TLSLDM(%ebx), %eax
1737 leal foo@DTPOFF(%eax), %edx
1738 movl foo@GOTTPOFF(%ebx), %eax
1739 subl foo@GOTTPOFF(%ebx), %eax
1740 movl $foo@TPOFF, %eax
1741 subl $foo@TPOFF, %eax
1742 leal foo@NTPOFF(%ecx), %eax'
1748 .section ".tdata","awT",@progbits
1751 addl r16 = @ltoff(@dtpmod(foo#)), gp
1752 addl r17 = @ltoff(@dtprel(foo#)), gp
1753 addl r18 = @ltoff(@tprel(foo#)), gp
1754 addl r19 = @dtprel(foo#), gp
1755 adds r21 = @dtprel(foo#), r13
1756 movl r23 = @dtprel(foo#)
1757 addl r20 = @tprel(foo#), gp
1758 adds r22 = @tprel(foo#), r13
1759 movl r24 = @tprel(foo#)'
1764 if test -z "$tls_first_major"; then
1766 elif test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1768 if test "$gcc_cv_gas_major_version" -eq "$tls_first_major" \
1769 -a "$gcc_cv_gas_minor_version" -ge "$tls_first_minor" \
1770 -o "$gcc_cv_gas_major_version" -gt "$tls_first_major"; then
1773 elif test x$gcc_cv_as != x; then
1774 echo "$conftest_s" > conftest.s
1775 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
1779 rm -f conftest.s conftest.o
1781 if test "$gcc_cv_as_tls" = yes; then
1782 AC_DEFINE(HAVE_AS_TLS, 1,
1783 [Define if your assembler supports thread-local storage.])
1785 AC_MSG_RESULT($gcc_cv_as_tls)
1788 # All TARGET_ABI_OSF targets.
1789 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
1790 AC_CACHE_CHECK([assembler supports explicit relocations],
1791 gcc_cv_as_explicit_relocs, [
1792 gcc_cv_as_explicit_relocs=unknown
1793 if test x$gcc_cv_gas_major_version != x \
1794 -a x$gcc_cv_gas_minor_version != x
1796 if test "$gcc_cv_gas_major_version" -eq 2 \
1797 -a "$gcc_cv_gas_minor_version" -ge 12 \
1798 -o "$gcc_cv_gas_major_version" -gt 2; then
1799 gcc_cv_as_explicit_relocs=yes
1801 elif test x$gcc_cv_as != x; then
1802 cat > conftest.s << 'EOF'
1805 extbl $3, $2, $3 !lituse_bytoff!1
1806 ldq $2, a($29) !literal!1
1807 ldq $4, b($29) !literal!2
1808 ldq_u $3, 0($2) !lituse_base!1
1809 ldq $27, f($29) !literal!5
1810 jsr $26, ($27), f !lituse_jsr!5
1811 ldah $29, 0($26) !gpdisp!3
1812 lda $0, c($29) !gprel
1813 ldah $1, d($29) !gprelhigh
1814 lda $1, d($1) !gprellow
1815 lda $29, 0($29) !gpdisp!3
1817 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1818 gcc_cv_as_explicit_relocs=yes
1820 gcc_cv_as_explicit_relocs=no
1822 rm -f conftest.s conftest.o
1825 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
1826 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
1827 [Define if your assembler supports explicit relocations.])
1831 AC_CACHE_CHECK([assembler .register pseudo-op support],
1832 gcc_cv_as_register_pseudo_op, [
1833 gcc_cv_as_register_pseudo_op=unknown
1834 if test x$gcc_cv_as != x; then
1835 # Check if we have .register
1836 echo ".register %g2, #scratch" > conftest.s
1837 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1838 gcc_cv_as_register_pseudo_op=yes
1840 gcc_cv_as_register_pseudo_op=no
1842 rm -f conftest.s conftest.o
1845 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1846 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1847 [Define if your assembler supports .register.])
1850 AC_CACHE_CHECK([assembler supports -relax],
1851 gcc_cv_as_relax_opt, [
1852 gcc_cv_as_relax_opt=unknown
1853 if test x$gcc_cv_as != x; then
1854 # Check if gas supports -relax
1855 echo ".text" > conftest.s
1856 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1857 gcc_cv_as_relax_opt=yes
1859 gcc_cv_as_relax_opt=no
1861 rm -f conftest.s conftest.o
1864 if test "x$gcc_cv_as_relax_opt" = xyes; then
1865 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1866 [Define if your assembler supports -relax option.])
1869 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
1870 gcc_cv_as_sparc_ua_pcrel, [
1871 gcc_cv_as_sparc_ua_pcrel=unknown
1872 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
1873 gcc_cv_as_sparc_ua_pcrel=no
1874 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
1875 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1876 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
1877 gcc_cv_as_sparc_ua_pcrel=yes
1879 rm -f conftest.s conftest.o conftest
1882 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1883 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
1884 [Define if your assembler and linker support unaligned PC relative relocs.])
1887 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
1888 gcc_cv_as_sparc_ua_pcrel_hidden, [
1889 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1890 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
1891 if test x$gcc_cv_objdump != x; then
1892 gcc_cv_as_sparc_ua_pcrel_hidden=no
1893 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
1894 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
1895 echo "foo: .skip 4" >> conftest.s
1896 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1897 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
1898 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
1899 | grep ' 31000000 07323334' > /dev/null 2>&1; then
1900 if $gcc_cv_objdump -R conftest 2> /dev/null \
1901 | grep 'DISP32' > /dev/null 2>&1; then
1904 gcc_cv_as_sparc_ua_pcrel_hidden=yes
1908 rm -f conftest.s conftest.o conftest
1910 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
1913 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
1914 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
1915 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
1918 if test "x$gcc_cv_as_flags64" != xno; then
1919 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1920 gcc_cv_as_offsetable_lo10, [
1921 gcc_cv_as_offsetable_lo10=unknown
1922 if test "x$gcc_cv_as" != x; then
1923 # Check if assembler has offsetable %lo()
1924 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1925 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1926 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1928 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1929 > /dev/null 2>&1; then
1930 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1931 gcc_cv_as_offsetable_lo10=no
1933 gcc_cv_as_offsetable_lo10=yes
1936 gcc_cv_as_offsetable_lo10=no
1938 rm -f conftest.s conftest.o conftest1.s conftest1.o
1941 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1942 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1943 [Define if your assembler supports offsetable %lo().])
1950 i[34567]86-*-* | x86_64-*-*)
1952 AC_MSG_CHECKING(assembler instructions)
1953 gcc_cv_as_instructions=
1954 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1955 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1956 gcc_cv_as_instructions="filds fists"
1958 elif test x$gcc_cv_as != x; then
1959 set "filds fists" "filds mem; fists mem"
1962 echo "$2" > conftest.s
1963 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1964 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1968 rm -f conftest.s conftest.o
1970 if test x"$gcc_cv_as_instructions" != x; then
1971 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1973 AC_MSG_RESULT($gcc_cv_as_instructions)
1975 AC_MSG_CHECKING(assembler GOTOFF in data directives)
1976 gcc_cv_as_gotoff_in_data=no
1977 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1979 if test "$gcc_cv_gas_major_version" -eq 2 \
1980 -a "$gcc_cv_gas_minor_version" -ge 11 \
1981 -o "$gcc_cv_gas_major_version" -gt 2; then
1982 gcc_cv_as_gotoff_in_data=yes
1984 elif test x$gcc_cv_as != x; then
1985 cat > conftest.s <<EOF
1992 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1993 gcc_cv_as_gotoff_in_data=yes
1996 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
1997 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
1998 [Define true if the assembler supports '.long foo@GOTOFF'.])
1999 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2003 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2004 gcc_cv_as_dwarf2_debug_line=no
2005 # ??? Not all targets support dwarf2 debug_line, even within a version
2006 # of gas. Moreover, we need to emit a valid instruction to trigger any
2007 # info to the output file. So, as supported targets are added to gas 2.11,
2008 # add some instruction here to (also) show we expect this might work.
2009 # ??? Once 2.11 is released, probably need to add first known working
2010 # version to the per-target configury.
2012 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-* | hppa*-*-*)
2019 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2021 if test "$gcc_cv_gas_major_version" -eq 2 \
2022 -a "$gcc_cv_gas_minor_version" -ge 11 \
2023 -o "$gcc_cv_gas_major_version" -gt 2 \
2024 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2025 && test x"$insn" != x ; then
2026 gcc_cv_as_dwarf2_debug_line="yes"
2028 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2029 echo ' .file 1 "conftest.s"' > conftest.s
2030 echo ' .loc 1 3 0' >> conftest.s
2031 echo " $insn" >> conftest.s
2032 # ??? This fails with non-gnu grep.
2033 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2034 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2035 # The .debug_line file table must be in the exact order that
2036 # we specified the files, since these indices are also used
2037 # by DW_AT_decl_file. Approximate this test by testing if
2038 # the assembler bitches if the same index is assigned twice.
2039 echo ' .file 1 "foo.s"' > conftest.s
2040 echo ' .file 1 "bar.s"' >> conftest.s
2041 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2043 gcc_cv_as_dwarf2_debug_line="no"
2045 gcc_cv_as_dwarf2_debug_line="yes"
2048 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2050 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2051 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2052 [Define if your assembler supports dwarf2 .file/.loc directives,
2053 and preserves file table indices exactly as given.])
2055 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2057 AC_MSG_CHECKING(assembler --gdwarf2 support)
2058 gcc_cv_as_gdwarf2_flag=no
2059 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2061 if test "$gcc_cv_gas_major_version" -eq 2 \
2062 -a "$gcc_cv_gas_minor_version" -ge 11 \
2063 -o "$gcc_cv_gas_major_version" -gt 2 \
2064 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2065 && test x"$insn" != x ; then
2066 gcc_cv_as_gdwarf2_debug_flag="yes"
2068 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2069 echo '' > conftest.s
2070 # ??? This fails with non-gnu grep.
2071 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2073 gcc_cv_as_gdwarf2_flag="yes"
2075 rm -f conftest.s conftest.o
2077 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2078 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2079 [Define if your assembler supports the --gdwarf2 option.])
2081 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2083 AC_MSG_CHECKING(assembler --gstabs support)
2084 gcc_cv_as_gstabs_flag=no
2085 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2087 if test "$gcc_cv_gas_major_version" -eq 2 \
2088 -a "$gcc_cv_gas_minor_version" -ge 11 \
2089 -o "$gcc_cv_gas_major_version" -gt 2 \
2090 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2091 && test x"$insn" != x ; then
2092 gcc_cv_as_gstabs_debug_flag="yes"
2094 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2095 echo '' > conftest.s
2096 # ??? This fails with non-gnu grep.
2097 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2098 gcc_cv_as_gstabs_flag="yes"
2100 rm -f conftest.s conftest.o
2102 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2103 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2104 [Define if your assembler supports the --gstabs option.])
2106 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2108 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2109 gcc_cv_ld_eh_frame_hdr=no
2110 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2111 if test "$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
2112 gcc_cv_ld_eh_frame_hdr=yes
2114 elif test x$gcc_cv_ld != x; then
2115 # Check if linker supports --eh-frame-hdr option
2116 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2117 gcc_cv_ld_eh_frame_hdr=yes
2120 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2121 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2122 [Define if your linker supports --eh-frame-hdr option.])
2124 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2126 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
2127 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2130 # Figure out what language subdirectories are present.
2131 # Look if the user specified --enable-languages="..."; if not, use
2132 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2134 # NB: embedded tabs in this IF block -- do not untabify
2135 if test x"${enable_languages+set}" != xset; then
2136 if test x"${LANGUAGES+set}" = xset; then
2137 enable_languages="${LANGUAGES}"
2138 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2141 enable_languages=all
2144 if test x"${enable_languages}" = x ||
2145 test x"${enable_languages}" = xyes;
2147 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2150 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2152 # First scan to see if an enabled language requires some other language.
2153 # We assume that a given config-lang.in will list all the language
2154 # front ends it requires, even if some are required indirectly.
2155 for lang in ${srcdir}/*/config-lang.in ..
2160 # The odd quoting in the next line works around
2161 # an apparent bug in bash 1.12 on linux.
2163 ${srcdir}/[*]/config-lang.in)
2166 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2167 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2168 for other in $this_lang_requires
2170 case ,${enable_languages}, in
2176 enable_languages="$enable_languages,$other"
2186 for lang in ${srcdir}/*/config-lang.in ..
2190 # The odd quoting in the next line works around
2191 # an apparent bug in bash 1.12 on linux.
2193 ${srcdir}/[*]/config-lang.in) ;;
2195 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2196 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2197 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2198 if test "x$lang_alias" = x
2200 echo "$lang doesn't set \$language." 1>&2
2203 case ${build_by_default},${enable_languages}, in
2204 *,$lang_alias,*) add_this_lang=yes ;;
2205 no,*) add_this_lang=no ;;
2206 *,all,*) add_this_lang=yes ;;
2207 *) add_this_lang=no ;;
2209 if test x"${add_this_lang}" = xyes; then
2211 ${srcdir}/ada/config-lang.in)
2212 if test x$have_gnat = xyes ; then
2213 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2217 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2226 # Make gthr-default.h if we have a thread file.
2228 if test $thread_file != single; then
2229 rm -f gthr-default.h
2230 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2231 gthread_flags=-DHAVE_GTHR_DEFAULT
2233 AC_SUBST(gthread_flags)
2235 # Find out what GC implementation we want, or may, use.
2237 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2244 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2249 echo "Using $GGC for garbage collection."
2251 # Use the system's zlib library.
2253 zlibinc="-I\$(srcdir)/../zlib"
2254 AC_ARG_WITH(system-zlib,
2255 [ --with-system-zlib use installed libz],
2262 dnl Very limited version of automake's enable-maintainer-mode
2264 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2265 dnl maintainer-mode is disabled by default
2266 AC_ARG_ENABLE(maintainer-mode,
2267 [ --enable-maintainer-mode
2268 enable make rules and dependencies not useful
2269 (and sometimes confusing) to the casual installer],
2270 maintainer_mode=$enableval,
2273 AC_MSG_RESULT($maintainer_mode)
2275 if test "$maintainer_mode" = "yes"; then
2282 # With Setjmp/Longjmp based exception handling.
2283 AC_ARG_ENABLE(sjlj-exceptions,
2284 [ --enable-sjlj-exceptions
2285 arrange to use setjmp/longjmp exception handling],
2286 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
2287 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
2288 [Define 0/1 to force the choice for exception handling model.])])
2290 # Make empty files to contain the specs and options for each language.
2291 # Then add #include lines to for a compiler that has specs and/or options.
2296 for subdir in . $subdirs
2298 if test -f $srcdir/$subdir/lang-specs.h; then
2299 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2301 if test -f $srcdir/$subdir/lang-options.h; then
2302 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2304 if test -f $srcdir/$subdir/$subdir-tree.def; then
2305 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2309 # These (without "all_") are set in each config-lang.in.
2310 # `language' must be a single word so is spelled singularly.
2315 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2316 # List of language makefile fragments.
2319 # Add the language fragments.
2320 # Languages are added via two mechanisms. Some information must be
2321 # recorded in makefile variables, these are defined in config-lang.in.
2322 # We accumulate them and plug them into the main Makefile.
2323 # The other mechanism is a set of hooks for each of the main targets
2324 # like `clean', `install', etc.
2326 language_fragments="Make-lang"
2327 language_hooks="Make-hooks"
2329 for s in .. $subdirs
2338 . ${srcdir}/$s/config-lang.in
2339 if test "x$language" = x
2341 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2344 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2345 if test -f ${srcdir}/$s/Makefile.in
2346 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2348 all_languages="$all_languages $language"
2349 if test "x$boot_language" = xyes
2351 all_boot_languages="$all_boot_languages $language"
2353 all_compilers="$all_compilers $compilers"
2354 all_stagestuff="$all_stagestuff $stagestuff"
2355 all_outputs="$all_outputs $outputs"
2360 for language in .. $all_languages
2362 if test $language != ".."
2364 check_languages="$check_languages check-$language"
2368 # Since we can't use `::' targets, we link each language in
2369 # with a set of hooks, reached indirectly via lang.${target}.
2373 target_list="all.build all.cross start.encap rest.encap \
2374 info dvi generated-manpages \
2375 install-normal install-common install-info install-man \
2377 mostlyclean clean distclean extraclean maintainer-clean \
2378 stage1 stage2 stage3 stage4"
2379 for t in $target_list
2382 for lang in .. $all_languages
2384 if test $lang != ".."; then
2388 echo "lang.$t: $x" >> Make-hooks
2393 echo "dir ." > .gdbinit
2394 echo "dir ${srcdir}" >> .gdbinit
2395 if test x$gdb_needs_out_file_path = xyes
2397 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2399 if test "x$subdirs" != x; then
2402 echo "dir ${srcdir}/$s" >> .gdbinit
2405 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2407 # Define variables host_canonical and build_canonical
2408 # because some Cygnus local changes in the Makefile depend on them.
2409 build_canonical=${build}
2410 host_canonical=${host}
2412 if test "${host}" != "${target}" ; then
2413 target_subdir=${target_alias}/
2415 AC_SUBST(build_canonical)
2416 AC_SUBST(host_canonical)
2417 AC_SUBST(target_subdir)
2419 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2420 # absolute path for gcc_tooldir based on inserting the number of up-directory
2421 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2422 # $(libsubdir)/@(unlibsubdir) based path.
2423 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2424 # make and thus we'd get different behavior depending on where we built the
2426 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2427 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2429 changequote(<<, >>)dnl
2430 # An explanation of the sed strings:
2431 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2432 # -e 's|/$||' match a trailing forward slash and eliminates it
2433 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2434 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2436 # (*) Note this pattern overwrites the first character of the string
2437 # with a forward slash if one is not already present. This is not a
2438 # problem because the exact names of the sub-directories concerned is
2439 # unimportant, just the number of them matters.
2441 # The practical upshot of these patterns is like this:
2443 # prefix exec_prefix result
2444 # ------ ----------- ------
2446 # /foo/ /foo/bar ../
2447 # /foo /foo/bar/ ../
2448 # /foo/ /foo/bar/ ../
2449 # /foo /foo/bar/ugg ../../
2452 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2453 changequote([, ])dnl
2455 AC_SUBST(gcc_tooldir)
2458 # Find a directory in which to install a shared libgcc.
2460 AC_ARG_ENABLE(version-specific-runtime-libs,
2461 [ --enable-version-specific-runtime-libs
2462 specify that runtime libraries should be
2463 installed in a compiler-specific directory])
2465 AC_ARG_WITH(slibdir,
2466 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2467 slibdir="$with_slibdir",
2468 if test "${enable_version_specific_runtime_libs+set}" = set; then
2469 slibdir='$(libsubdir)'
2470 elif test "$host" != "$target"; then
2471 slibdir='$(build_tooldir)/lib'
2477 # Nothing to do for FLOAT_H, float_format already handled.
2478 objdir=`${PWDCMD-pwd}`
2481 # Process the language and host/target makefile fragments.
2482 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2484 # Substitute configuration variables
2486 AC_SUBST(all_boot_languages)
2487 AC_SUBST(all_compilers)
2488 AC_SUBST(all_lang_makefiles)
2489 AC_SUBST(all_languages)
2490 AC_SUBST(all_stagestuff)
2491 AC_SUBST(build_exeext)
2492 AC_SUBST(build_install_headers_dir)
2493 AC_SUBST(build_xm_file_list)
2494 AC_SUBST(build_xm_file)
2495 AC_SUBST(build_xm_defines)
2496 AC_SUBST(check_languages)
2497 AC_SUBST(cc_set_by_configure)
2498 AC_SUBST(quoted_cc_set_by_configure)
2499 AC_SUBST(cpp_install_dir)
2500 AC_SUBST(dep_host_xmake_file)
2501 AC_SUBST(dep_tmake_file)
2502 AC_SUBST(extra_headers_list)
2503 AC_SUBST(extra_objs)
2504 AC_SUBST(extra_parts)
2505 AC_SUBST(extra_passes)
2506 AC_SUBST(extra_programs)
2507 AC_SUBST(float_h_file)
2508 AC_SUBST(gcc_config_arguments)
2509 AC_SUBST(gcc_gxx_include_dir)
2510 AC_SUBST(libstdcxx_incdir)
2511 AC_SUBST(gcc_version)
2512 AC_SUBST(gcc_version_full)
2513 AC_SUBST(gcc_version_trigger)
2514 AC_SUBST(host_exeext)
2515 AC_SUBST(host_extra_gcc_objs)
2516 AC_SUBST(host_xm_file_list)
2517 AC_SUBST(host_xm_file)
2518 AC_SUBST(host_xm_defines)
2520 AC_SUBST(lang_options_files)
2521 AC_SUBST(lang_specs_files)
2522 AC_SUBST(lang_tree_files)
2523 AC_SUBST(local_prefix)
2525 AC_SUBST(objc_boehm_gc)
2527 AC_SUBST(out_object_file)
2528 AC_SUBST(stage_prefix_set_by_configure)
2529 AC_SUBST(quoted_stage_prefix_set_by_configure)
2530 AC_SUBST(symbolic_link)
2531 AC_SUBST(thread_file)
2532 AC_SUBST(tm_file_list)
2534 AC_SUBST(tm_p_file_list)
2537 AC_SUBST(xm_defines)
2538 AC_SUBST(target_alias)
2539 AC_SUBST(c_target_objs)
2540 AC_SUBST(cxx_target_objs)
2541 AC_SUBST(target_cpu_default)
2543 AC_SUBST_FILE(target_overrides)
2544 AC_SUBST_FILE(host_overrides)
2545 AC_SUBST_FILE(language_fragments)
2546 AC_SUBST_FILE(language_hooks)
2548 # Echo that links are built
2549 if test x$host = x$target
2557 if test x$host != x$build
2559 str3=" on a $build system"
2562 if test "x$str2" != x || test "x$str3" != x
2567 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2569 if test "x$str2" != x || test "x$str3" != x
2571 echo " ${str2}${str3}." 1>&2
2574 # Truncate the target if necessary
2575 if test x$host_truncate_target != x; then
2576 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2579 # Configure the subdirectories
2580 # AC_CONFIG_SUBDIRS($subdirs)
2582 # Create the Makefile
2583 # and configure language subdirectories
2584 AC_OUTPUT($all_outputs,
2586 case x$CONFIG_HEADERS in
2587 xauto-host.h:config.in)
2590 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2591 # bootstrapping and the installation procedure can still use
2592 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2593 # FLAGS_TO_PASS has been modified to solve the problem there.
2594 # This is virtually a duplicate of what happens in configure.lang; we do
2595 # an extra check to make sure this only happens if ln -s can be used.
2596 if test "$symbolic_link" = "ln -s"; then
2597 for d in .. ${subdirs} fixinc ; do
2598 if test $d != ..; then
2599 STARTDIR=`${PWDCMD-pwd}`
2601 for t in stage1 stage2 stage3 stage4 include
2604 $symbolic_link ../$t $t 2>/dev/null
2610 # Avoid having to add intl to our include paths.
2611 if test -f intl/libintl.h; then
2612 echo creating libintl.h
2613 echo '#include "intl/libintl.h"' >libintl.h
2617 symbolic_link='$symbolic_link'