2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003
5 # Free Software Foundation, Inc.
7 #This file is part of GCC.
9 #GCC is free software; you can redistribute it and/or modify it under
10 #the terms of the GNU General Public License as published by the Free
11 #Software Foundation; either version 2, or (at your option) any later
14 #GCC is distributed in the hope that it will be useful, but WITHOUT
15 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 #You should have received a copy of the GNU General Public License
20 #along with GCC; see the file COPYING. If not, write to the Free
21 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 # --------------------------------
25 # Initialization and sanity checks
26 # --------------------------------
30 AC_CONFIG_HEADER(auto-host.h:config.in)
32 # Determine the host, build, and target systems
35 # Set program_transform_name
38 # Check for bogus environment variables.
39 # Test if LIBRARY_PATH contains the notation for the current directory
40 # since this would lead to problems installing/building glibc.
41 # LIBRARY_PATH contains the current directory if one of the following
43 # - one of the terminals (":" and ";") is the first or last sign
44 # - two terminals occur directly after each other
45 # - the path contains an element with a dot in it
46 AC_MSG_CHECKING(LIBRARY_PATH variable)
48 case ${LIBRARY_PATH} in
49 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
50 library_path_setting="contains current directory"
53 library_path_setting="ok"
57 AC_MSG_RESULT($library_path_setting)
58 if test "$library_path_setting" != "ok"; then
60 *** LIBRARY_PATH shouldn't contain the current directory when
61 *** building gcc. Please change the environment variable
62 *** and run configure again.])
65 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
66 # since this would lead to problems installing/building glibc.
67 # GCC_EXEC_PREFIX contains the current directory if one of the following
69 # - one of the terminals (":" and ";") is the first or last sign
70 # - two terminals occur directly after each other
71 # - the path contains an element with a dot in it
72 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
74 case ${GCC_EXEC_PREFIX} in
75 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
76 gcc_exec_prefix_setting="contains current directory"
79 gcc_exec_prefix_setting="ok"
83 AC_MSG_RESULT($gcc_exec_prefix_setting)
84 if test "$gcc_exec_prefix_setting" != "ok"; then
86 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
87 *** building gcc. Please change the environment variable
88 *** and run configure again.])
95 # Specify the local prefix
97 AC_ARG_WITH(local-prefix,
98 [ --with-local-prefix=DIR specifies directory to put local include],
100 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
102 *) local_prefix=$with_local_prefix ;;
105 # Default local prefix if it is empty
106 if test x$local_prefix = x; then
107 local_prefix=/usr/local
110 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
111 # passed in by the toplevel make and thus we'd get different behavior
112 # depending on where we built the sources.
114 # Specify the g++ header file directory
115 AC_ARG_WITH(gxx-include-dir,
116 [ --with-gxx-include-dir=DIR
117 specifies directory to put g++ header files],
118 [case "${withval}" in
119 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
121 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
124 if test x${gcc_gxx_include_dir} = x; then
125 if test x${enable_version_specific_runtime_libs} = xyes; then
126 gcc_gxx_include_dir='${libsubdir}/include/c++'
128 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
129 changequote(<<, >>)dnl
130 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
135 AC_ARG_WITH(cpp_install_dir,
136 [ --with-cpp-install-dir=DIR
137 install the user visible C preprocessor in DIR
138 (relative to PREFIX) as well as PREFIX/bin],
139 [if test x$withval = xyes; then
140 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
141 elif test x$withval != xno; then
142 cpp_install_dir=$withval
145 # -------------------
146 # Find default linker
147 # -------------------
151 [ --with-gnu-ld arrange to work with GNU ld.],
152 gnu_ld_flag="$with_gnu_ld",
155 # With pre-defined ld
157 [ --with-ld arrange to use the specified ld (full pathname)],
158 DEFAULT_LINKER="$with_ld")
159 if test x"${DEFAULT_LINKER+set}" = x"set"; then
160 if test ! -x "$DEFAULT_LINKER"; then
161 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
162 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
165 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
166 [Define to enable the use of a default linker.])
169 AC_MSG_CHECKING([whether a default linker was specified])
170 if test x"${DEFAULT_LINKER+set}" = x"set"; then
171 if test x"$gnu_ld_flag" = x"no"; then
172 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
174 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
180 # ----------------------
181 # Find default assembler
182 # ----------------------
186 [ --with-gnu-as arrange to work with GNU as],
187 gas_flag="$with_gnu_as",
191 [ --with-as arrange to use the specified as (full pathname)],
192 DEFAULT_ASSEMBLER="$with_as")
193 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
194 if test ! -x "$DEFAULT_ASSEMBLER"; then
195 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
196 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
199 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
200 [Define to enable the use of a default assembler.])
203 AC_MSG_CHECKING([whether a default assembler was specified])
204 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
205 if test x"$gas_flag" = x"no"; then
206 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
208 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
218 # Find the native compiler
221 # autoconf is lame and doesn't give us any substitution variable for this.
222 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
223 NO_MINUS_C_MINUS_O=yes
225 OUTPUT_OPTION='-o $@'
227 AC_SUBST(NO_MINUS_C_MINUS_O)
228 AC_SUBST(OUTPUT_OPTION)
230 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
231 ac_cv_prog_cc_no_long_long,
232 [save_CFLAGS="$CFLAGS"
233 CFLAGS="-Wno-long-long"
234 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
235 ac_cv_prog_cc_no_long_long=no)
236 CFLAGS="$save_CFLAGS"])
246 # sizeof(char) is 1 by definition.
247 AC_COMPILE_CHECK_SIZEOF(short)
248 AC_COMPILE_CHECK_SIZEOF(int)
249 AC_COMPILE_CHECK_SIZEOF(long)
250 if test $ac_cv_c_long_long = yes; then
251 AC_COMPILE_CHECK_SIZEOF(long long)
253 if test $ac_cv_c___int64 = yes; then
254 AC_COMPILE_CHECK_SIZEOF(__int64)
263 # See if GNAT has been installed
266 if test x$have_gnat != xno ; then
267 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
268 ac_cv_prog_adac_no_long_long,
269 [cat >conftest.adb <<EOF
270 procedure conftest is begin null; end conftest;
272 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
273 ac_cv_prog_adac_no_long_long=yes
275 ac_cv_prog_adac_no_long_long=no
279 ac_cv_prog_adac_no_long_long=yes
282 # ---------------------
283 # Warnings and checking
284 # ---------------------
287 if test $ac_cv_prog_cc_no_long_long = yes && \
288 test $ac_cv_prog_adac_no_long_long = yes ; then
289 strict1_warn="-pedantic -Wno-long-long"
291 AC_SUBST(strict1_warn)
293 # If the native compiler is GCC, we can enable warnings even in stage1.
294 # That's useful for people building cross-compilers, or just running a
297 if test "x$GCC" = "xyes"; then
298 warn_cflags='$(GCC_WARN_CFLAGS)'
300 AC_SUBST(warn_cflags)
302 # Enable -Werror in bootstrap stage2 and later.
303 # Change the default to "no" on release branches.
304 AC_ARG_ENABLE(werror,
305 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
307 if test x$enable_werror = xyes ; then
312 # Enable expensive internal checks
313 AC_ARG_ENABLE(checking,
314 [ --enable-checking[=LIST]
315 enable expensive run-time checks. With LIST,
316 enable only specific categories of checks.
317 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
318 default is misc,tree,gc,rtlflag],
324 ac_gc_always_collect=
325 case "${enableval}" in
326 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
327 ac_rtlflag_checking=1 ;;
329 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
330 set fnord $enableval; shift
335 misc) ac_checking=1 ;;
336 tree) ac_tree_checking=1 ;;
337 rtlflag) ac_rtlflag_checking=1 ;;
338 rtl) ac_rtl_checking=1 ;;
339 gc) ac_gc_checking=1 ;;
340 gcac) ac_gc_always_collect=1 ;;
341 valgrind) ac_checking_valgrind=1 ;;
342 *) AC_MSG_ERROR(unknown check category $check) ;;
348 # Enable some checks by default for development versions of GCC
349 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
351 if test x$ac_checking != x ; then
352 AC_DEFINE(ENABLE_CHECKING, 1,
353 [Define if you want more run-time sanity checks. This one gets a grab
354 bag of miscellaneous but relatively cheap checks.])
355 nocommon_flag=-fno-common
357 AC_SUBST(nocommon_flag)
358 if test x$ac_tree_checking != x ; then
359 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
360 [Define if you want all operations on trees (the basic data
361 structure of the front ends) to be checked for dynamic type safety
362 at runtime. This is moderately expensive.])
364 if test x$ac_rtl_checking != x ; then
365 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
366 [Define if you want all operations on RTL (the basic data structure
367 of the optimizer and back end) to be checked for dynamic type safety
368 at runtime. This is quite expensive.])
370 if test x$ac_rtlflag_checking != x ; then
371 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
372 [Define if you want RTL flag accesses to be checked against the RTL
373 codes that are supported for each access macro. This is relatively
376 if test x$ac_gc_checking != x ; then
377 AC_DEFINE(ENABLE_GC_CHECKING, 1,
378 [Define if you want the garbage collector to do object poisoning and
379 other memory allocation checks. This is quite expensive.])
381 if test x$ac_gc_always_collect != x ; then
382 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
383 [Define if you want the garbage collector to operate in maximally
384 paranoid mode, validating the entire heap and collecting garbage at
385 every opportunity. This is extremely expensive.])
387 valgrind_path_defines=
389 if test x$ac_checking_valgrind != x ; then
390 # It is certainly possible that there's valgrind but no valgrind.h.
391 # GCC relies on making annotations so we must have both.
392 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
393 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
394 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
395 if test "x$valgrind_path" = "x" || test $have_valgrind_h = no; then
396 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h])
398 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
399 valgrind_command="$valgrind_path -q"
400 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
401 [Define if you want to run subprograms and generated programs
402 through valgrind (a memory checker). This is extremely expensive.])
404 AC_SUBST(valgrind_path_defines)
405 AC_SUBST(valgrind_command)
407 # Enable code coverage collection
408 AC_ARG_ENABLE(coverage,
409 [ --enable-coverage[=LEVEL]
410 enable compiler\'s code coverage collection.
411 Use to measure compiler performance and locate
412 unused parts of the compiler. With LEVEL, specify
413 optimization. Values are opt, noopt,
415 [case "${enableval}" in
417 coverage_flags="-fprofile-arcs -ftest-coverage -O0 -DSELF_COVERAGE=1"
420 coverage_flags="-fprofile-arcs -ftest-coverage -O2 -DSELF_COVERAGE=2"
423 AC_MSG_ERROR(unknown coverage setting $enableval)
427 AC_SUBST(coverage_flags)
435 [ --with-stabs arrange to use stabs instead of host debug format],
441 [ --with-elf arrange to use ELF instead of host debug format],
445 # Determine whether or not multilibs are enabled.
446 AC_ARG_ENABLE(multilib,
447 [ --enable-multilib enable library support for multiple ABIs],
448 [], [enable_multilib=yes])
449 AC_SUBST(enable_multilib)
451 # Enable __cxa_atexit for C++.
452 AC_ARG_ENABLE(__cxa_atexit,
453 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
455 if test x$enable___cxa_atexit = xyes; then
456 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
457 [Define if you want to use __cxa_atexit, rather than atexit, to
458 register C++ destructors for local statics and global objects.
459 This is essential for fully standards-compliant handling of
460 destructors, but requires __cxa_atexit in libc.])
463 # Enable Multibyte Characters for C/C++
464 AC_ARG_ENABLE(c-mbchar,
465 [ --enable-c-mbchar enable multibyte characters for C and C++],
466 if test x$enable_c_mbchar != xno; then
467 AC_DEFINE(MULTIBYTE_CHARS, 1,
468 [Define if you want the C and C++ compilers to support multibyte
469 character sets for source code.])
473 # Pass with no value to take the default
474 # Pass with a value to specify a thread package
475 AC_ARG_ENABLE(threads,
476 [ --enable-threads enable thread usage for target GCC
477 --enable-threads=LIB use LIB thread package for target GCC],,
480 enable_threads_flag=$enable_threads
481 # Check if a valid thread package
482 case x${enable_threads_flag} in
485 target_thread_file='single'
489 target_thread_file=''
491 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
492 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
493 target_thread_file=$enable_threads_flag
496 echo "$enable_threads is an unknown thread package" 1>&2
501 AC_ARG_ENABLE(objc-gc,
502 [ --enable-objc-gc enable the use of Boehm's garbage collector with
503 the GNU Objective-C runtime],
504 if test x$enable_objc_gc = xno; then
512 [ --with-dwarf2 force the default debug format to be DWARF 2],
513 dwarf2="$with_dwarf2",
516 AC_ARG_ENABLE(shared,
517 [ --disable-shared don't provide a shared libgcc],
519 case $enable_shared in
523 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
524 for pkg in $enableval; do
525 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
532 ], [enable_shared=yes])
533 AC_SUBST(enable_shared)
536 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
538 case ${with_sysroot} in
539 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
540 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
543 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
544 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
546 if test "x$exec_prefix" = xNONE; then
547 if test "x$prefix" = xNONE; then
548 test_prefix=/usr/local
553 test_prefix=$exec_prefix
555 case ${TARGET_SYSTEM_ROOT} in
556 "${test_prefix}"|"${test_prefix}/"*|\
557 '${exec_prefix}'|'${exec_prefix}/'*)
558 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
559 TARGET_SYSTEM_ROOT_DEFINE="$t"
564 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=0'
565 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
567 AC_SUBST(TARGET_SYSTEM_ROOT)
568 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
569 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
571 # Stage specific cflags for build.
577 stage1_cflags="-Wa,-J"
583 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
584 # sources; use -no-cpp-precomp to get to GNU cpp.
585 # Apple's GCC has bugs in designated initializer handling, so disable
587 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
590 AC_SUBST(stage1_cflags)
594 AC_MSG_CHECKING(for GNU C library)
595 AC_CACHE_VAL(gcc_cv_glibc,
597 [#include <features.h>],[
598 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
599 #error Not a GNU C library system
603 AC_MSG_RESULT($gcc_cv_glibc)
604 if test $gcc_cv_glibc = yes; then
605 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
608 # Find some useful tools
617 gcc_AC_HEADER_STDBOOL
620 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
621 fcntl.h unistd.h sys/file.h sys/time.h \
622 sys/resource.h sys/param.h sys/times.h sys/stat.h \
623 direct.h malloc.h langinfo.h ldfcn.h)
625 # Check for thread headers.
626 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
627 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
629 # These tests can't be done till we know if we have limits.h.
632 gcc_AC_C_FLOAT_FORMAT
634 # See if we have the mktemp command.
635 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
637 # Do we have a single-tree copy of texinfo?
638 if test -f $srcdir/../texinfo/Makefile.in; then
639 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
640 gcc_cv_prog_makeinfo_modern=yes
641 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
643 # See if makeinfo has been installed and is modern enough
644 # that we can use it.
645 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
646 [GNU texinfo.* \([0-9][0-9.]*\)],
650 if test $gcc_cv_prog_makeinfo_modern = no; then
652 *** Makeinfo is missing or too old.
653 *** Info documentation will not be built.])
656 BUILD_INFO=info AC_SUBST(BUILD_INFO)
659 # Is pod2man recent enough to regenerate manpages?
660 AC_MSG_CHECKING([for recent Pod::Man])
661 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
663 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
670 dnl Don't use AC_PROG_LEX; we insist on flex.
671 dnl LEXLIB is not useful in gcc.
672 if test -f $srcdir/../flex/skel.c; then
673 FLEX='$(objdir)/../flex/flex'
675 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
679 # The -L switch is so bison can find its skeleton file.
680 if test -f $srcdir/../bison/bison.simple; then
681 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
683 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
686 # These libraries may be used by collect2.
687 # We may need a special search path to get them linked.
688 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
690 for libs in '' -lld -lmld \
691 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
692 '-L/usr/lib/cmplrs/cc3.11 -lmld'
695 AC_TRY_LINK_FUNC(ldopen,
696 [gcc_cv_collect2_libs="$libs"; break])
699 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
700 case $gcc_cv_collect2_libs in
702 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
704 AC_SUBST(COLLECT2_LIBS)
706 # When building Ada code on Alpha, we need exc_resume which is usually in
707 # -lexc. So test for it.
710 AC_SEARCH_LIBS(exc_resume, exc)
713 AC_SUBST(GNAT_LIBEXC)
715 # See if the stage1 system preprocessor understands the ANSI C
716 # preprocessor stringification operator. (Used by symcat.h.)
719 # Use <inttypes.h> only if it exists,
720 # doesn't clash with <sys/types.h>, and declares intmax_t.
721 AC_MSG_CHECKING(for inttypes.h)
722 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
724 [#include <sys/types.h>
725 #include <inttypes.h>],
727 [gcc_cv_header_inttypes_h=yes],
728 gcc_cv_header_inttypes_h=no)])
729 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
730 if test $gcc_cv_header_inttypes_h = yes; then
731 AC_DEFINE(HAVE_INTTYPES_H, 1,
732 [Define if you have a working <inttypes.h> header file.])
735 dnl Disabled until we have a complete test for buggy enum bitfields.
736 dnl gcc_AC_C_ENUM_BF_UNSIGNED
738 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
739 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
740 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
743 AC_CHECK_TYPE(ssize_t, int)
745 # Try to determine the array type of the second argument of getgroups
746 # for the target system (int or gid_t).
748 if test "${target}" = "${build}"; then
749 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
752 # This condition may need some tweaking. It should include all
753 # targets where the array type of the second argument of getgroups
754 # is int and the type of gid_t is not equivalent to int.
755 *-*-sunos* | *-*-ultrix*)
756 TARGET_GETGROUPS_T=int
759 TARGET_GETGROUPS_T=gid_t
763 AC_SUBST(TARGET_GETGROUPS_T)
765 gcc_AC_FUNC_PRINTF_PTR
770 *** UWIN may not be used as a host platform because
771 *** linking with posix.dll is not allowed by the GNU GPL])
774 # Under VMS, vfork works very different than on Unix. The standard test
775 # won't work, and it isn't easily adaptable. It makes more sense to
777 ac_cv_func_vfork_works=yes
781 AC_FUNC_MMAP_ANYWHERE
786 # We will need to find libiberty.h and ansidecl.h
787 saved_CFLAGS="$CFLAGS"
788 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
789 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
790 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
791 fprintf_unlocked strstr errno vasprintf \
792 malloc realloc calloc free basename getopt clock, , ,[
793 #include "ansidecl.h"
794 #include "system.h"])
796 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
797 #include "ansidecl.h"
799 #ifdef HAVE_SYS_RESOURCE_H
800 #include <sys/resource.h>
804 gcc_AC_CHECK_DECLS(ldgetname, , ,[
805 #include "ansidecl.h"
812 gcc_AC_CHECK_DECLS(times, , ,[
813 #include "ansidecl.h"
815 #ifdef HAVE_SYS_TIMES_H
816 #include <sys/times.h>
820 # More time-related stuff.
821 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
823 #include "ansidecl.h"
825 #ifdef HAVE_SYS_TIMES_H
826 #include <sys/times.h>
828 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
829 if test $ac_cv_struct_tms = yes; then
830 AC_DEFINE(HAVE_STRUCT_TMS, 1,
831 [Define if <sys/times.h> defines struct tms.])
834 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
835 # revisit after autoconf 2.50.
836 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
838 #include "ansidecl.h"
840 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
841 if test $gcc_cv_type_clock_t = yes; then
842 AC_DEFINE(HAVE_CLOCK_T, 1,
843 [Define if <time.h> defines clock_t.])
846 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
848 #include "ansidecl.h"
851 [if ((uchar *)0) return 0;
852 if (sizeof(uchar)) return 0;],
853 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
854 if test $ac_cv_type_uchar = yes; then
855 AC_DEFINE(HAVE_UCHAR, 1,
856 [Define if <sys/types.h> defines \`uchar'.])
859 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
860 CFLAGS="$saved_CFLAGS"
862 gcc_AC_INITFINI_ARRAY
864 # mkdir takes a single argument on some systems.
865 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
873 # With Setjmp/Longjmp based exception handling.
874 AC_ARG_ENABLE(sjlj-exceptions,
875 [ --enable-sjlj-exceptions
876 arrange to use setjmp/longjmp exception handling],
877 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
878 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
879 [Define 0/1 to force the choice for exception handling model.])])
881 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
882 # Use libunwind based exception handling.
883 AC_ARG_ENABLE(libunwind-exceptions,
884 [ --enable-libunwind-exceptions force use libunwind for exceptions],
885 use_libunwind_exceptions=$enableval,
886 use_libunwind_exceptions=$use_libunwind_default)
887 if test x"$use_libunwind_exceptions" = xyes; then
888 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
889 [Define if gcc should use -lunwind.])
892 # --------------------------------------------------------
893 # Build, host, and target specific configuration fragments
894 # --------------------------------------------------------
899 build_install_headers_dir=install-headers-tar
904 host_truncate_target=
907 # Decode the host machine, then the target machine.
908 # For the host machine, we save the xm_file variable as host_xm_file;
909 # then we decode the target machine and forget everything else
910 # that came from the host machine.
911 for machine in $build $host $target; do
912 . ${srcdir}/config.gcc
915 extra_objs="${host_extra_objs} ${extra_objs}"
917 # Default the target-machine variables that were not explicitly set.
918 if test x"$tm_file" = x
919 then tm_file=$cpu_type/$cpu_type.h; fi
921 if test x"$extra_headers" = x
922 then extra_headers=; fi
924 if test x$md_file = x
925 then md_file=$cpu_type/$cpu_type.md; fi
927 if test x$out_file = x
928 then out_file=$cpu_type/$cpu_type.c; fi
930 if test x"$tmake_file" = x
931 then tmake_file=$cpu_type/t-$cpu_type
934 if test x"$dwarf2" = xyes
935 then tm_file="$tm_file tm-dwarf2.h"
938 # Say what files are being used for the output code and MD file.
939 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
940 echo "Using \`$srcdir/config/$md_file' as machine description file."
942 # If any of the xm_file variables contain nonexistent files, warn
943 # about them and drop them.
946 for x in $build_xm_file; do
947 if test -f $srcdir/config/$x
949 else AC_MSG_WARN($srcdir/config/$x does not exist.)
955 for x in $host_xm_file; do
956 if test -f $srcdir/config/$x
958 else AC_MSG_WARN($srcdir/config/$x does not exist.)
964 for x in $xm_file; do
965 if test -f $srcdir/config/$x
967 else AC_MSG_WARN($srcdir/config/$x does not exist.)
973 for f in $tm_file; do
976 if test $count = ax; then
977 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
979 echo "Using the following target machine macro files:"
980 for f in $tm_file; do
981 echo " $srcdir/config/$f"
985 if test x$need_64bit_hwint = xyes; then
986 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
987 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
991 for f in $host_xm_file; do
994 if test $count = a; then
996 elif test $count = ax; then
997 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
999 echo "Using the following host machine macro files:"
1000 for f in $host_xm_file; do
1001 echo " $srcdir/config/$f"
1004 echo "Using ${out_host_hook_obj} for host machine hooks."
1006 if test "$host_xm_file" != "$build_xm_file"; then
1008 for f in $build_xm_file; do
1011 if test $count = a; then
1013 elif test $count = ax; then
1014 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1016 echo "Using the following build machine macro files:"
1017 for f in $build_xm_file; do
1018 echo " $srcdir/config/$f"
1023 if test x$thread_file = x; then
1024 if test x$target_thread_file != x; then
1025 thread_file=$target_thread_file
1027 thread_file='single'
1031 # Look for a file containing extra machine modes.
1032 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1033 extra_modes_file='$(srcdir)'/config/${extra_modes}
1034 AC_SUBST(extra_modes_file)
1035 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1036 [Define to the name of a file containing a list of extra machine modes
1037 for this architecture.])
1038 AC_DEFINE(EXTRA_CC_MODES, 1,
1039 [Define if the target architecture needs extra machine modes to represent
1040 the results of comparisons.])
1043 # auto-host.h is the file containing items generated by autoconf and is
1044 # the first file included by config.h.
1045 # If host=build, it is correct to have bconfig include auto-host.h
1046 # as well. If host!=build, we are in error and need to do more
1047 # work to find out the build config parameters.
1048 if test x$host = x$build
1050 build_auto=auto-host.h
1053 # We create a subdir, then run autoconf in the subdir.
1054 # To prevent recursion we set host and build for the new
1055 # invocation of configure to the build for this invocation
1062 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1063 *) realsrcdir=../${srcdir};;
1065 saved_CFLAGS="${CFLAGS}"
1066 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1067 ${realsrcdir}/configure \
1068 --target=$target_alias --host=$build_alias --build=$build_alias
1069 CFLAGS="${saved_CFLAGS}"
1071 # We just finished tests for the build machine, so rename
1072 # the file auto-build.h in the gcc directory.
1073 mv auto-host.h ../auto-build.h
1076 build_auto=auto-build.h
1077 FORBUILD=../build-$build_alias
1081 tm_file="${tm_file} defaults.h"
1082 tm_p_file="${tm_p_file} tm-preds.h"
1083 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1084 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1085 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1086 # put this back in temporarily.
1087 xm_file="ansidecl.h ${xm_file}"
1093 # Truncate the target if necessary
1094 if test x$host_truncate_target != x; then
1095 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1098 # Get the version trigger filename from the toplevel
1099 if test "${with_gcc_version_trigger+set}" = set; then
1100 gcc_version_trigger=$with_gcc_version_trigger
1102 gcc_version_trigger=${srcdir}/version.c
1105 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1106 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1108 # Compile in configure arguments.
1109 if test -f configargs.h ; then
1110 # Being re-configured.
1111 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1112 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1114 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1116 cat > configargs.h <<EOF
1117 /* Generated automatically. */
1118 static const char configuration_arguments[] = "$gcc_config_arguments";
1119 static const char thread_model[] = "$thread_file";
1123 # Internationalization
1125 VERSION="$gcc_version"
1129 # Enable NLS support by default
1131 [ --enable-nls use Native Language Support (default)],
1134 # if cross compiling, disable NLS support.
1135 # It's not worth the trouble, at least for now.
1137 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1138 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1144 # Windows32 Registry support for specifying GCC installation paths.
1145 AC_ARG_ENABLE(win32-registry,
1146 [ --disable-win32-registry
1147 disable lookup of installation paths in the
1148 Registry on Windows hosts
1149 --enable-win32-registry enable registry lookup (default)
1150 --enable-win32-registry=KEY
1151 use KEY instead of GCC version as the last portion
1152 of the registry key],,)
1154 win32 | pe | cygwin* | mingw32* | uwin*)
1155 AC_MSG_CHECKING(whether windows registry support is requested)
1156 if test "x$enable_win32_registry" != xno; then
1157 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1158 [Define to 1 if installation paths should be looked up in Windows32
1159 Registry. Ignored on non windows32 hosts.])
1161 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1166 # Check if user specified a different registry key.
1167 case "x${enable_win32_registry}" in
1170 gcc_cv_win32_registry_key="$VERSION"
1173 # no registry lookup.
1174 gcc_cv_win32_registry_key=''
1177 # user-specified key.
1178 gcc_cv_win32_registry_key="$enable_win32_registry"
1182 if test "x$enable_win32_registry" != xno; then
1183 AC_MSG_CHECKING(registry key on windows hosts)
1184 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1185 [Define to be the last portion of registry key on windows hosts.])
1186 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1191 # Get an absolute path to the GCC top-level source directory
1192 holddir=`${PWDCMD-pwd}`
1194 topdir=`${PWDCMD-pwd}`
1197 # Conditionalize the makefile for this host machine.
1198 # Make-host contains the concatenation of all host makefile fragments
1199 # [there can be more than one]. This file is built by configure.frag.
1200 host_overrides=Make-host
1201 dep_host_xmake_file=
1202 for f in .. ${host_xmake_file}
1204 if test -f ${srcdir}/config/$f
1206 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1210 # Conditionalize the makefile for this target machine.
1211 # Make-target contains the concatenation of all host makefile fragments
1212 # [there can be more than one]. This file is built by configure.frag.
1213 target_overrides=Make-target
1215 for f in .. ${tmake_file}
1217 if test -f ${srcdir}/config/$f
1219 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1223 symbolic_link='ln -s'
1225 # If the host doesn't support symlinks, modify CC in
1226 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1227 # Otherwise, we can use "CC=$(CC)".
1229 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1231 cc_set_by_configure="\$(CC)"
1232 quoted_cc_set_by_configure="\$(CC)"
1233 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1234 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1237 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1239 symbolic_link="cp -p"
1243 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1244 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1245 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1246 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1250 out_object_file=`basename $out_file .c`.o
1253 for f in $tm_file; do
1256 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1258 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1259 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1264 for f in $tm_p_file; do
1267 tm_p_file_list="${tm_p_file_list} $f" ;;
1268 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1273 for f in $host_xm_file; do
1276 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1278 host_xm_file_list="${host_xm_file_list} $f" ;;
1280 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1281 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1286 for f in $build_xm_file; do
1289 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1290 auto-build.h | auto-host.h )
1291 build_xm_file_list="${build_xm_file_list} $f" ;;
1293 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1294 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1298 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1299 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1300 CROSS= AC_SUBST(CROSS)
1301 ALL=all.internal AC_SUBST(ALL)
1302 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1303 if test x$host != x$target
1305 CROSS="-DCROSS_COMPILE"
1307 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1308 case "$host","$target" in
1309 i?86-*-*,x86_64-*-* \
1310 | powerpc*-*-*,powerpc64*-*-*)
1311 CROSS="$CROSS -DNATIVE_CROSS" ;;
1315 # If this is a cross-compiler that does not
1316 # have its own set of headers then define
1319 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1320 # This prevents libgcc2 from containing any code which requires libc
1323 if { test x$host != x$target && test "x$with_headers" = x &&
1324 test "x$with_sysroot" = x ; } || test x$with_newlib = xyes ; then
1325 inhibit_libc=-Dinhibit_libc
1327 AC_SUBST(inhibit_libc)
1329 # When building gcc with a cross-compiler, we need to adjust things so
1330 # that the generator programs are still built with the native compiler.
1331 # Also, we cannot run fixincludes or fix-header.
1333 # These are the normal (build=host) settings:
1334 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1335 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1336 BUILD_CC='$(CC)' AC_SUBST(BUILD_CC)
1337 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1339 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1340 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1342 # And these apply if build != host.
1343 if test x$build != x$host
1346 BUILD_PREFIX_1=build-
1347 BUILD_CC='$(CC_FOR_BUILD)'
1348 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1354 # Expand extra_headers to include complete path.
1355 # This substitutes for lots of t-* files.
1357 if test "x$extra_headers" = x
1360 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1361 for file in $extra_headers;
1363 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1367 # Add a definition of USE_COLLECT2 if system wants one.
1368 case $use_collect2 in
1369 no) use_collect2= ;;
1372 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1373 xm_defines="${xm_defines} USE_COLLECT2"
1377 # If we have gas in the build tree, make a link to it.
1378 if test -f ../gas/Makefile; then
1379 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1382 # If we have nm and objdump in the build tree, make a link to them.
1383 if test -f ../binutils/Makefile; then
1384 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1385 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1388 # If we have ld in the build tree, make a link to it.
1389 if test -f ../ld/Makefile; then
1390 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1393 # Figure out what assembler we will be using.
1394 AC_MSG_CHECKING(what assembler to use)
1397 gcc_cv_gas_major_version=
1398 gcc_cv_gas_minor_version=
1399 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1400 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1401 if test -x "$DEFAULT_ASSEMBLER"; then
1402 gcc_cv_as="$DEFAULT_ASSEMBLER"
1403 elif test -x "$AS"; then
1405 elif test -x as$host_exeext; then
1406 # Build using assembler in the current directory.
1407 gcc_cv_as=./as$host_exeext
1408 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1409 && test -f ../gas/Makefile; then
1410 # Single tree build which includes gas.
1412 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
1415 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1417 if test x$gcc_cv_gas_version != x; then
1422 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1423 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1424 gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.[0-9]*\.\([0-9]*\)"`
1428 if test "x$gcc_cv_as" = x; then
1429 # Search the same directories that the installed compiler will
1430 # search. Else we may find the wrong assembler and lose. If we
1431 # do not find a suitable assembler binary, then try the user's
1434 # Also note we have to check MD_EXEC_PREFIX before checking the
1435 # user's path. Unfortunately, there is no good way to get at the
1436 # value of MD_EXEC_PREFIX here. So we do a brute force search
1437 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1438 # to be fixed as part of the make/configure rewrite too.
1440 if test "x$exec_prefix" = xNONE; then
1441 if test "x$prefix" = xNONE; then
1442 test_prefix=/usr/local
1447 test_prefix=$exec_prefix
1450 # If the loop below does not find an assembler, then use whatever
1451 # one we can find in the users's path.
1453 if test "x$program_prefix" != xNONE; then
1454 gcc_cv_as=${program_prefix}as$host_exeext
1456 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1459 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1460 $test_prefix/lib/gcc-lib/$target_alias \
1461 /usr/lib/gcc/$target_alias/$gcc_version \
1462 /usr/lib/gcc/$target_alias \
1463 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1464 $test_prefix/$target_alias/bin"
1466 if test x$host = x$target; then
1467 test_dirs="$test_dirs \
1472 /bsd43/usr/lib/cmplrs/cc \
1473 /usr/cross64/usr/bin \
1474 /usr/lib/cmplrs/cc \
1475 /sysv/usr/lib/cmplrs/cc \
1476 /svr4/usr/lib/cmplrs/cc \
1480 for dir in $test_dirs; do
1481 if test -x $dir/as$host_exeext; then
1482 gcc_cv_as=$dir/as$host_exeext
1487 case $in_tree_gas in
1489 AC_MSG_RESULT("newly built gas")
1492 AC_MSG_RESULT($gcc_cv_as)
1496 # Figure out what linker we will be using.
1497 AC_MSG_CHECKING(what linker to use)
1500 gcc_cv_gld_major_version=
1501 gcc_cv_gld_minor_version=
1502 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1503 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1504 if test -x "$DEFAULT_LINKER"; then
1505 gcc_cv_ld="$DEFAULT_LINKER"
1506 elif test -x "$LD"; then
1508 elif test -x ld$host_exeext; then
1509 # Build using linker in the current directory.
1510 gcc_cv_ld=./ld$host_exeext
1511 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1512 && test -f ../ld/Makefile; then
1513 # Single tree build which includes ld.
1515 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
1518 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1520 if test x$gcc_cv_gld_version != x; then
1525 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1526 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1530 if test "x$gcc_cv_ld" = x; then
1531 # Search the same directories that the installed compiler will
1532 # search. Else we may find the wrong linker and lose. If we
1533 # do not find a suitable linker binary, then try the user's
1536 # Also note we have to check MD_EXEC_PREFIX before checking the
1537 # user's path. Unfortunately, there is no good way to get at the
1538 # value of MD_EXEC_PREFIX here. So we do a brute force search
1539 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1540 # to be fixed as part of the make/configure rewrite too.
1542 if test "x$exec_prefix" = xNONE; then
1543 if test "x$prefix" = xNONE; then
1544 test_prefix=/usr/local
1549 test_prefix=$exec_prefix
1552 # If the loop below does not find an linker, then use whatever
1553 # one we can find in the users's path.
1555 if test "x$program_prefix" != xNONE; then
1556 gcc_cv_ld=${program_prefix}ld$host_exeext
1558 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1561 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1562 $test_prefix/lib/gcc-lib/$target_alias \
1563 /usr/lib/gcc/$target_alias/$gcc_version \
1564 /usr/lib/gcc/$target_alias \
1565 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1566 $test_prefix/$target_alias/bin"
1568 if test x$host = x$target; then
1569 test_dirs="$test_dirs \
1574 /bsd43/usr/lib/cmplrs/cc \
1575 /usr/cross64/usr/bin \
1576 /usr/lib/cmplrs/cc \
1577 /sysv/usr/lib/cmplrs/cc \
1578 /svr4/usr/lib/cmplrs/cc \
1582 for dir in $test_dirs; do
1583 if test -x $dir/ld$host_exeext; then
1584 gcc_cv_ld=$dir/ld$host_exeext
1591 AC_MSG_RESULT("newly built ld")
1594 AC_MSG_RESULT($gcc_cv_ld)
1598 # Figure out what nm we will be using.
1599 AC_MSG_CHECKING(what nm to use)
1600 if test -x nm$host_exeext; then
1601 gcc_cv_nm=./nm$host_exeext
1602 elif test "x$program_prefix" != xNONE; then
1603 gcc_cv_nm=${program_prefix}nm$host_exeext
1605 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1607 AC_MSG_RESULT($gcc_cv_nm)
1609 # Figure out what objdump we will be using.
1610 AC_MSG_CHECKING(what objdump to use)
1611 if test -x objdump$host_exeext; then
1612 gcc_cv_objdump=./objdump$host_exeext
1613 elif test "x$program_prefix" != xNONE; then
1614 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1616 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1618 AC_MSG_RESULT($gcc_cv_objdump)
1620 # Figure out what assembler alignment features are present.
1621 AC_MSG_CHECKING(assembler alignment features)
1622 gcc_cv_as_alignment_features=none
1623 if test $in_tree_gas = yes; then
1624 # Gas version 2.6 and later support for .balign and .p2align.
1625 # bytes to skip when using .p2align.
1626 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1627 gcc_cv_as_alignment_features=".balign and .p2align"
1628 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1630 # Gas version 2.8 and later support specifying the maximum
1631 # bytes to skip when using .p2align.
1632 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1633 gcc_cv_as_alignment_features=".p2align including maximum skip"
1634 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1636 elif test x$gcc_cv_as != x; then
1637 # Check if we have .balign and .p2align
1638 echo ".balign 4" > conftest.s
1639 echo ".p2align 2" >> conftest.s
1640 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1641 gcc_cv_as_alignment_features=".balign and .p2align"
1642 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1644 rm -f conftest.s conftest.o
1645 # Check if specifying the maximum bytes to skip when
1646 # using .p2align is supported.
1647 echo ".p2align 4,,7" > conftest.s
1648 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1649 gcc_cv_as_alignment_features=".p2align including maximum skip"
1650 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1652 rm -f conftest.s conftest.o
1654 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1656 AC_MSG_CHECKING(assembler subsection support)
1657 gcc_cv_as_subsections=no
1658 if test $in_tree_gas = yes ; then
1659 if test "$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
1660 gcc_cv_as_subsections="working .subsection -1"
1662 elif test x$gcc_cv_as != x; then
1663 # Check if we have .subsection
1664 echo ".subsection 1" > conftest.s
1665 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1666 gcc_cv_as_subsections=".subsection"
1667 if test x$gcc_cv_nm != x; then
1668 cat > conftest.s <<EOF
1669 conftest_label1: .word 0
1671 conftest_label2: .word 0
1674 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1675 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1676 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1677 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1680 gcc_cv_as_subsections="working .subsection -1"
1685 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1687 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1688 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1689 [Define if your assembler supports .subsection and .subsection -1 starts
1690 emitting at the beginning of your section.])
1692 AC_MSG_RESULT($gcc_cv_as_subsections)
1694 AC_MSG_CHECKING(assembler weak support)
1696 if test $in_tree_gas = yes ; then
1697 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1698 gcc_cv_as_weak="yes"
1700 elif test x$gcc_cv_as != x; then
1701 # Check if we have .weak
1702 echo " .weak foobar" > conftest.s
1703 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1704 gcc_cv_as_weak="yes"
1706 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1708 if test x"$gcc_cv_as_weak" = xyes; then
1709 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1711 AC_MSG_RESULT($gcc_cv_as_weak)
1713 AC_MSG_CHECKING(assembler hidden support)
1715 if test $in_tree_gas = yes ; then
1716 if test "$gcc_cv_gas_major_version" -eq 2 \
1717 -a "$gcc_cv_gas_minor_version" -eq 12 \
1718 -a "$gcc_cv_gas_patch_version" -ge 1 \
1719 -o "$gcc_cv_gas_major_version" -eq 2 \
1720 -a "$gcc_cv_gas_minor_version" -gt 12 \
1721 -o "$gcc_cv_gas_major_version" -gt 2 \
1722 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1723 gcc_cv_as_hidden="yes"
1725 elif test x$gcc_cv_as != x; then
1726 # Check if we have .hidden
1727 echo " .hidden foobar" > conftest.s
1728 echo "foobar:" >> conftest.s
1729 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1730 gcc_cv_as_hidden="yes"
1732 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1734 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1735 # This is irritatingly difficult to feature test for. Look for
1736 # the date string after the version number.
1737 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1738 if echo "$ld_ver" | grep GNU > /dev/null; then
1740 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([ ].*\|\)$,\1,p'`
1741 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1742 if test 0"$ld_date" -lt 20020404; then
1743 if test -n "$ld_date"; then
1744 # If there was date string, but was earlier than 2002-04-04, fail
1745 gcc_cv_as_hidden="no"
1746 elif test -z "$ld_vers"; then
1747 # If there was no date string nor ld version number, something is wrong
1748 gcc_cv_as_hidden="no"
1750 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1751 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1752 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1753 test -z "$ld_vers_patch" && ld_vers_patch=0
1754 if test "$ld_vers_major" -lt 2; then
1755 gcc_cv_as_hidden="no"
1756 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1757 gcc_cv_as_hidden="no"
1758 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1759 -a "$ld_vers_patch" -eq 0; then
1760 gcc_cv_as_hidden="no"
1767 if test x"$gcc_cv_as_hidden" = xyes; then
1768 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1769 [Define if your assembler supports .hidden.])
1771 AC_MSG_RESULT($gcc_cv_as_hidden)
1772 libgcc_visibility=$gcc_cv_as_hidden
1775 if test x"$gnu_ld_flag" = x"no"; then
1776 # Even if using gas with .hidden support, the resulting object files
1777 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1778 # N64 linkers, the problem is that the linker refuses to accept
1779 # -call_shared (passed by default to the linker) and -r (used to
1780 # link the object file generated without .hidden directives with
1781 # one that hides symbols), so we also lose.
1782 libgcc_visibility=no
1786 AC_SUBST(libgcc_visibility)
1788 AC_MSG_CHECKING(assembler leb128 support)
1790 if test $in_tree_gas = yes ; then
1791 if test "$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
1792 gcc_cv_as_leb128="yes"
1794 elif test x$gcc_cv_as != x; then
1795 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1796 cat > conftest.s <<EOF
1804 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1805 gcc_cv_as_leb128="yes"
1807 # GAS versions before 2.11 do not support uleb128,
1808 # despite appearing to.
1809 # ??? There exists an elf-specific test that will crash
1810 # the assembler. Perhaps it's better to figure out whether
1811 # arbitrary sections are supported and try the test.
1812 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1813 if echo "$as_ver" | grep GNU > /dev/null; then
1815 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1816 as_major=`echo $as_ver | sed 's/\..*//'`
1817 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1819 if test $as_major -eq 2 -a $as_minor -lt 11; then
1820 gcc_cv_as_leb128="no"
1824 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1826 if test x"$gcc_cv_as_leb128" = xyes; then
1827 AC_DEFINE(HAVE_AS_LEB128, 1,
1828 [Define if your assembler supports .uleb128.])
1830 AC_MSG_RESULT($gcc_cv_as_leb128)
1832 AC_MSG_CHECKING(assembler eh_frame optimization)
1833 gcc_cv_as_eh_frame=no
1834 if test $in_tree_gas = yes ; then
1835 if test "$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
1836 gcc_cv_as_eh_frame="yes"
1838 elif test x$gcc_cv_as != x; then
1839 # Check if this is GAS.
1840 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1841 rm -f a.out 2> /dev/null
1842 if echo "$as_ver" | grep GNU > /dev/null; then
1843 # Versions up to and including 2.11.0 may mis-optimize
1844 # .eh_frame data. Try something.
1845 cat > conftest.s <<EOF
1852 .section .eh_frame,"aw",@progbits
1854 .4byte .LECIE1-.LSCIE1
1868 .4byte .LEFDE1-.LASFDE1
1870 .4byte .LASFDE1-__FRAME_BEGIN__
1879 cat > conftest.lit <<EOF
1880 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1881 0010 01000000 12000000 18000000 00000000 ................
1882 0020 08000000 04080000 0044 .........D
1884 cat > conftest.big <<EOF
1885 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1886 0010 00000001 00000012 00000018 00000000 ................
1887 0020 00000008 04000000 0844 .........D
1889 # If the assembler didn't choke, and we can objdump,
1890 # and we got the correct data, then succeed.
1891 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1892 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1893 | tail -3 > conftest.got \
1894 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1895 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1897 gcc_cv_as_eh_frame="yes"
1899 gcc_cv_as_eh_frame="bad"
1900 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1901 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1902 [Define if your assembler mis-optimizes .eh_frame data.])
1908 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1910 AC_MSG_CHECKING(assembler section merging support)
1911 gcc_cv_as_shf_merge=no
1912 if test $in_tree_gas = yes ; then
1913 if test "$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
1914 gcc_cv_as_shf_merge=yes
1916 elif test x$gcc_cv_as != x; then
1917 # Check if we support SHF_MERGE sections
1918 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1919 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1920 gcc_cv_as_shf_merge=yes
1922 rm -f conftest.s conftest.o
1924 if test x"$gcc_cv_as_shf_merge" = xyes; then
1925 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1926 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1928 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1930 AC_MSG_CHECKING(assembler thread-local storage support)
1939 .section ".tdata","awT",@progbits
1942 ldq $27,__tls_get_addr($29) !literal!1
1943 lda $16,foo($29) !tlsgd!1
1944 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1945 ldq $27,__tls_get_addr($29) !literal!2
1946 lda $16,foo($29) !tlsldm!2
1947 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
1948 ldq $1,foo($29) !gotdtprel
1949 ldah $2,foo($29) !dtprelhi
1950 lda $3,foo($2) !dtprello
1951 lda $4,foo($29) !dtprel
1952 ldq $1,foo($29) !gottprel
1953 ldah $2,foo($29) !tprelhi
1954 lda $3,foo($2) !tprello
1955 lda $4,foo($29) !tprel'
1962 .section ".tdata","awT",@progbits
1966 leal foo@TLSGD(,%ebx,1), %eax
1967 leal foo@TLSLDM(%ebx), %eax
1968 leal foo@DTPOFF(%eax), %edx
1969 movl foo@GOTTPOFF(%ebx), %eax
1970 subl foo@GOTTPOFF(%ebx), %eax
1971 addl foo@GOTNTPOFF(%ebx), %eax
1972 movl foo@INDNTPOFF, %eax
1973 movl $foo@TPOFF, %eax
1974 subl $foo@TPOFF, %eax
1975 leal foo@NTPOFF(%ecx), %eax'
1981 .section ".tdata","awT",@progbits
1985 leaq foo@TLSGD(%rip), %rdi
1986 leaq foo@TLSLD(%rip), %rdi
1987 leaq foo@DTPOFF(%rax), %rdx
1988 movq foo@GOTTPOFF(%rip), %rax
1989 movq $foo@TPOFF, %rax'
1995 .section ".tdata","awT",@progbits
1998 addl r16 = @ltoff(@dtpmod(foo#)), gp
1999 addl r17 = @ltoff(@dtprel(foo#)), gp
2000 addl r18 = @ltoff(@tprel(foo#)), gp
2001 addl r19 = @dtprel(foo#), gp
2002 adds r21 = @dtprel(foo#), r13
2003 movl r23 = @dtprel(foo#)
2004 addl r20 = @tprel(foo#), gp
2005 adds r22 = @tprel(foo#), r13
2006 movl r24 = @tprel(foo#)'
2012 .section ".tdata","awT",@progbits
2021 l %r1,foo@GOTNTPOFF(%r12)
2022 l %r1,0(%r1):tls_load:foo
2023 bas %r14,0(%r1,%r13):tls_gdcall:foo
2024 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2030 .section ".tdata","awT",@progbits
2038 lg %r1,foo@GOTNTPOFF(%r12)
2039 larl %r1,foo@INDNTPOFF
2040 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2041 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2046 if test -z "$tls_first_major"; then
2048 elif test $in_tree_gas = yes ; then
2049 if test "$gcc_cv_gas_major_version" -eq "$tls_first_major" \
2050 -a "$gcc_cv_gas_minor_version" -ge "$tls_first_minor" \
2051 -o "$gcc_cv_gas_major_version" -gt "$tls_first_major"; then
2054 elif test x$gcc_cv_as != x; then
2055 echo "$conftest_s" > conftest.s
2056 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2060 rm -f conftest.s conftest.o
2062 if test "$gcc_cv_as_tls" = yes; then
2063 AC_DEFINE(HAVE_AS_TLS, 1,
2064 [Define if your assembler supports thread-local storage.])
2066 AC_MSG_RESULT($gcc_cv_as_tls)
2069 # All TARGET_ABI_OSF targets.
2070 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2071 AC_CACHE_CHECK([assembler supports explicit relocations],
2072 gcc_cv_as_explicit_relocs, [
2073 gcc_cv_as_explicit_relocs=unknown
2074 if test $in_tree_gas = yes ; then
2075 if test "$gcc_cv_gas_major_version" -eq 2 \
2076 -a "$gcc_cv_gas_minor_version" -ge 12 \
2077 -o "$gcc_cv_gas_major_version" -gt 2; then
2078 gcc_cv_as_explicit_relocs=yes
2080 elif test x$gcc_cv_as != x; then
2081 cat > conftest.s << 'EOF'
2084 extbl $3, $2, $3 !lituse_bytoff!1
2085 ldq $2, a($29) !literal!1
2086 ldq $4, b($29) !literal!2
2087 ldq_u $3, 0($2) !lituse_base!1
2088 ldq $27, f($29) !literal!5
2089 jsr $26, ($27), f !lituse_jsr!5
2090 ldah $29, 0($26) !gpdisp!3
2091 lda $0, c($29) !gprel
2092 ldah $1, d($29) !gprelhigh
2093 lda $1, d($1) !gprellow
2094 lda $29, 0($29) !gpdisp!3
2096 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2097 gcc_cv_as_explicit_relocs=yes
2099 gcc_cv_as_explicit_relocs=no
2101 rm -f conftest.s conftest.o
2104 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2105 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2106 [Define if your assembler supports explicit relocations.])
2110 AC_CACHE_CHECK([assembler .register pseudo-op support],
2111 gcc_cv_as_register_pseudo_op, [
2112 gcc_cv_as_register_pseudo_op=unknown
2113 if test x$gcc_cv_as != x; then
2114 # Check if we have .register
2115 echo ".register %g2, #scratch" > conftest.s
2116 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2117 gcc_cv_as_register_pseudo_op=yes
2119 gcc_cv_as_register_pseudo_op=no
2121 rm -f conftest.s conftest.o
2124 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2125 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2126 [Define if your assembler supports .register.])
2129 AC_CACHE_CHECK([assembler supports -relax],
2130 gcc_cv_as_relax_opt, [
2131 gcc_cv_as_relax_opt=unknown
2132 if test x$gcc_cv_as != x; then
2133 # Check if gas supports -relax
2134 echo ".text" > conftest.s
2135 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2136 gcc_cv_as_relax_opt=yes
2138 gcc_cv_as_relax_opt=no
2140 rm -f conftest.s conftest.o
2143 if test "x$gcc_cv_as_relax_opt" = xyes; then
2144 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2145 [Define if your assembler supports -relax option.])
2148 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2149 gcc_cv_as_sparc_ua_pcrel, [
2150 gcc_cv_as_sparc_ua_pcrel=unknown
2151 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2152 gcc_cv_as_sparc_ua_pcrel=no
2153 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2154 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2155 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2156 gcc_cv_as_sparc_ua_pcrel=yes
2158 rm -f conftest.s conftest.o conftest
2161 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2162 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2163 [Define if your assembler and linker support unaligned PC relative relocs.])
2166 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2167 gcc_cv_as_sparc_ua_pcrel_hidden, [
2168 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2169 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2170 if test x$gcc_cv_objdump != x; then
2171 gcc_cv_as_sparc_ua_pcrel_hidden=no
2172 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2173 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2174 echo "foo: .skip 4" >> conftest.s
2175 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2176 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2177 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2178 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2179 if $gcc_cv_objdump -R conftest 2> /dev/null \
2180 | grep 'DISP32' > /dev/null 2>&1; then
2183 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2187 rm -f conftest.s conftest.o conftest
2189 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2192 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2193 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2194 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2197 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2198 gcc_cv_as_offsetable_lo10, [
2199 gcc_cv_as_offsetable_lo10=unknown
2200 if test "x$gcc_cv_as" != x; then
2201 # Check if assembler has offsetable %lo()
2202 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2203 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2204 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2206 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2207 > /dev/null 2>&1; then
2208 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2209 gcc_cv_as_offsetable_lo10=no
2211 gcc_cv_as_offsetable_lo10=yes
2214 gcc_cv_as_offsetable_lo10=no
2216 rm -f conftest.s conftest.o conftest1.s conftest1.o
2219 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2220 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2221 [Define if your assembler supports offsetable %lo().])
2227 i[34567]86-*-* | x86_64-*-*)
2229 AC_MSG_CHECKING(assembler instructions)
2230 gcc_cv_as_instructions=
2231 if test $in_tree_gas = yes ; then
2232 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
2233 gcc_cv_as_instructions="filds fists"
2235 elif test x$gcc_cv_as != x; then
2236 set "filds fists" "filds mem; fists mem"
2239 echo "$2" > conftest.s
2240 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2241 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2245 rm -f conftest.s conftest.o
2247 if test x"$gcc_cv_as_instructions" != x; then
2248 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2250 AC_MSG_RESULT($gcc_cv_as_instructions)
2252 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2253 gcc_cv_as_gotoff_in_data=no
2254 if test $in_tree_gas = yes ; then
2255 if test "$gcc_cv_gas_major_version" -eq 2 \
2256 -a "$gcc_cv_gas_minor_version" -ge 11 \
2257 -o "$gcc_cv_gas_major_version" -gt 2; then
2258 gcc_cv_as_gotoff_in_data=yes
2260 elif test x$gcc_cv_as != x; then
2261 cat > conftest.s <<EOF
2268 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2269 gcc_cv_as_gotoff_in_data=yes
2272 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2273 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2274 [Define true if the assembler supports '.long foo@GOTOFF'.])
2275 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2279 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2280 gcc_cv_as_ltoffx_ldxmov_relocs, [
2281 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2282 if test x$gcc_cv_gas_major_version != x \
2283 -a x$gcc_cv_gas_minor_version != x
2285 if test "$gcc_cv_gas_major_version" -eq 2 \
2286 -a "$gcc_cv_gas_minor_version" -ge 14 \
2287 -o "$gcc_cv_gas_major_version" -gt 2; then
2288 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2290 elif test x$gcc_cv_as != x; then
2291 cat > conftest.s << 'EOF'
2294 addl r15 = @ltoffx(x#), gp
2296 ld8.mov r16 = [r15], x#
2299 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2300 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2302 gcc_cv_as_ltoffx_ldxmov_relocs=no
2304 rm -f conftest.s conftest.o
2307 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2308 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2309 [Define if your assembler supports ltoffx and ldxmov relocations.])
2314 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2315 gcc_cv_as_dwarf2_debug_line=no
2316 # ??? Not all targets support dwarf2 debug_line, even within a version
2317 # of gas. Moreover, we need to emit a valid instruction to trigger any
2318 # info to the output file. So, as supported targets are added to gas 2.11,
2319 # add some instruction here to (also) show we expect this might work.
2320 # ??? Once 2.11 is released, probably need to add first known working
2321 # version to the per-target configury.
2323 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2324 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-*)
2331 if test $in_tree_gas = yes ; then
2332 if test "$gcc_cv_gas_major_version" -eq 2 \
2333 -a "$gcc_cv_gas_minor_version" -ge 11 \
2334 -o "$gcc_cv_gas_major_version" -gt 2 \
2335 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2336 && test x"$insn" != x ; then
2337 gcc_cv_as_dwarf2_debug_line="yes"
2339 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2340 echo ' .file 1 "conftest.s"' > conftest.s
2341 echo ' .loc 1 3 0' >> conftest.s
2342 echo " $insn" >> conftest.s
2343 # ??? This fails with non-gnu grep.
2344 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2345 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2346 # The .debug_line file table must be in the exact order that
2347 # we specified the files, since these indices are also used
2348 # by DW_AT_decl_file. Approximate this test by testing if
2349 # the assembler bitches if the same index is assigned twice.
2350 echo ' .file 1 "foo.s"' > conftest.s
2351 echo ' .file 1 "bar.s"' >> conftest.s
2352 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2354 gcc_cv_as_dwarf2_debug_line="no"
2356 gcc_cv_as_dwarf2_debug_line="yes"
2359 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2361 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2362 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2363 [Define if your assembler supports dwarf2 .file/.loc directives,
2364 and preserves file table indices exactly as given.])
2366 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2368 AC_MSG_CHECKING(assembler --gdwarf2 support)
2369 gcc_cv_as_gdwarf2_flag=no
2370 if test $in_tree_gas = yes ; then
2371 if test "$gcc_cv_gas_major_version" -eq 2 \
2372 -a "$gcc_cv_gas_minor_version" -ge 11 \
2373 -o "$gcc_cv_gas_major_version" -gt 2 \
2374 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2375 && test x"$insn" != x ; then
2376 gcc_cv_as_gdwarf2_flag="yes"
2378 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2379 echo '' > conftest.s
2380 # ??? This fails with non-gnu grep.
2381 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2383 gcc_cv_as_gdwarf2_flag="yes"
2385 rm -f conftest.s conftest.o
2387 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2388 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2389 [Define if your assembler supports the --gdwarf2 option.])
2391 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2393 AC_MSG_CHECKING(assembler --gstabs support)
2394 gcc_cv_as_gstabs_flag=no
2395 if test $in_tree_gas = yes ; then
2396 if test "$gcc_cv_gas_major_version" -eq 2 \
2397 -a "$gcc_cv_gas_minor_version" -ge 11 \
2398 -o "$gcc_cv_gas_major_version" -gt 2 \
2399 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2400 && test x"$insn" != x ; then
2401 gcc_cv_as_gstabs_flag="yes"
2403 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2404 echo '' > conftest.s
2405 # ??? This fails with non-gnu grep.
2406 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2407 gcc_cv_as_gstabs_flag="yes"
2409 rm -f conftest.s conftest.o
2411 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2412 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2413 [Define if your assembler supports the --gstabs option.])
2415 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2417 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2418 gcc_cv_ld_ro_rw_mix=unknown
2419 if test $in_tree_ld = yes ; then
2420 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2421 gcc_cv_ld_ro_rw_mix=read-write
2423 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2424 echo '.section "myfoosect", "a"' > conftest1.s
2425 echo '.section "myfoosect", "aw"' > conftest2.s
2426 echo '.byte 1' >> conftest2.s
2427 echo '.section "myfoosect", "a"' > conftest3.s
2428 echo '.byte 0' >> conftest3.s
2429 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2430 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2431 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2432 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2433 conftest2.o conftest3.o; then
2434 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2435 | grep -A1 myfoosect`
2436 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2437 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2438 gcc_cv_ld_ro_rw_mix=read-only
2440 gcc_cv_ld_ro_rw_mix=read-write
2445 rm -f conftest.* conftest[123].*
2448 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2449 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2450 [Define if your linker links a mix of read-only
2451 and read-write sections into a read-write section.])
2453 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2455 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2456 gcc_cv_ld_eh_frame_hdr=no
2457 if test $in_tree_ld = yes ; then
2458 if test "$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
2459 gcc_cv_ld_eh_frame_hdr=yes
2461 elif test x$gcc_cv_ld != x; then
2462 # Check if linker supports --eh-frame-hdr option
2463 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2464 gcc_cv_ld_eh_frame_hdr=yes
2467 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2468 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2469 [Define if your linker supports --eh-frame-hdr option.])
2471 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2473 # Miscellaneous target-specific checks.
2476 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2477 gcc_cv_mips_libgloss_startup=no
2478 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2479 if test "x$exec_prefix" = xNONE; then
2480 if test "x$prefix" = xNONE; then
2481 test_prefix=/usr/local
2486 test_prefix=$exec_prefix
2488 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2490 if grep '^STARTUP' $f > /dev/null 2>&1; then
2491 gcc_cv_mips_libgloss_startup=yes
2495 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2496 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2497 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2499 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2503 if test x$with_sysroot = x && test x$host = x$target \
2504 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2505 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2508 # Figure out what language subdirectories are present.
2509 # Look if the user specified --enable-languages="..."; if not, use
2510 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2512 # NB: embedded tabs in this IF block -- do not untabify
2513 if test x"${enable_languages+set}" != xset; then
2514 if test x"${LANGUAGES+set}" = xset; then
2515 enable_languages="${LANGUAGES}"
2516 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2519 enable_languages=all
2522 if test x"${enable_languages}" = x \
2523 || test x"${enable_languages}" = xyes;
2525 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2528 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2530 # First scan to see if an enabled language requires some other language.
2531 # We assume that a given config-lang.in will list all the language
2532 # front ends it requires, even if some are required indirectly.
2533 for lang in ${srcdir}/*/config-lang.in ..
2538 # The odd quoting in the next line works around
2539 # an apparent bug in bash 1.12 on linux.
2541 ${srcdir}/[*]/config-lang.in)
2544 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2545 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2546 for other in $this_lang_requires
2548 case ,${enable_languages}, in
2554 enable_languages="$enable_languages,$other"
2563 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2566 for lang in ${srcdir}/*/config-lang.in ..
2570 # The odd quoting in the next line works around
2571 # an apparent bug in bash 1.12 on linux.
2573 ${srcdir}/[*]/config-lang.in) ;;
2575 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2576 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2577 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2578 if test "x$lang_alias" = x
2580 echo "$lang doesn't set \$language." 1>&2
2583 case ${build_by_default},${enable_languages}, in
2584 *,$lang_alias,*) add_this_lang=yes ;;
2585 no,*) add_this_lang=no ;;
2586 *,all,*) add_this_lang=yes ;;
2587 *) add_this_lang=no ;;
2589 found_languages="${found_languages} ${lang_alias}"
2590 if test x"${add_this_lang}" = xyes; then
2592 ${srcdir}/ada/config-lang.in)
2593 if test x$have_gnat = xyes ; then
2594 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2598 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2608 for expected_language in ${expected_languages} ..
2610 if test "${expected_language}" != ..; then
2611 missing_language="${expected_language}"
2612 if test "${expected_language}" = "c" \
2613 || test "${expected_language}" = "all"; then
2616 for found_language in ${found_languages} ..
2618 if test "${found_language}" != ..; then
2619 if test "${expected_language}" = "${found_language}"; then
2624 if test "x${missing_language}" != x; then
2625 missing_languages="${missing_languages} ${missing_language}"
2630 if test "x$missing_languages" != x; then
2632 The following requested languages were not found:${missing_languages}
2633 The following languages were available: c${found_languages}])
2636 # Make gthr-default.h if we have a thread file.
2638 if test $thread_file != single; then
2639 rm -f gthr-default.h
2640 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2641 gthread_flags=-DHAVE_GTHR_DEFAULT
2643 AC_SUBST(gthread_flags)
2645 # Find out what GC implementation we want, or may, use.
2647 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2654 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2659 echo "Using $GGC for garbage collection."
2661 # Use the system's zlib library.
2663 zlibinc="-I\$(srcdir)/../zlib"
2664 AC_ARG_WITH(system-zlib,
2665 [ --with-system-zlib use installed libz],
2672 dnl Very limited version of automake's enable-maintainer-mode
2674 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2675 dnl maintainer-mode is disabled by default
2676 AC_ARG_ENABLE(maintainer-mode,
2677 [ --enable-maintainer-mode
2678 enable make rules and dependencies not useful
2679 (and sometimes confusing) to the casual installer],
2680 maintainer_mode=$enableval,
2683 AC_MSG_RESULT($maintainer_mode)
2685 if test "$maintainer_mode" = "yes"; then
2692 # Make empty files to contain the specs and options for each language.
2693 # Then add #include lines to for a compiler that has specs and/or options.
2698 for subdir in . $subdirs
2700 if test -f $srcdir/$subdir/lang-specs.h; then
2701 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2703 if test -f $srcdir/$subdir/lang-options.h; then
2704 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2706 if test -f $srcdir/$subdir/$subdir-tree.def; then
2707 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2711 # These (without "all_") are set in each config-lang.in.
2712 # `language' must be a single word so is spelled singularly.
2717 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2718 # List of language makefile fragments.
2720 # Files for gengtype
2721 all_gtfiles="$target_gtfiles"
2722 # Files for gengtype with language
2723 all_gtfiles_files_langs=
2724 all_gtfiles_files_files=
2726 # Add the language fragments.
2727 # Languages are added via two mechanisms. Some information must be
2728 # recorded in makefile variables, these are defined in config-lang.in.
2729 # We accumulate them and plug them into the main Makefile.
2730 # The other mechanism is a set of hooks for each of the main targets
2731 # like `clean', `install', etc.
2733 language_fragments="Make-lang"
2734 language_hooks="Make-hooks"
2736 for s in .. $subdirs
2746 . ${srcdir}/$s/config-lang.in
2747 if test "x$language" = x
2749 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2752 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2753 if test -f ${srcdir}/$s/Makefile.in
2754 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2756 all_languages="$all_languages $language"
2757 if test "x$boot_language" = xyes
2759 all_boot_languages="$all_boot_languages $language"
2761 all_compilers="$all_compilers $compilers"
2762 all_stagestuff="$all_stagestuff $stagestuff"
2763 all_outputs="$all_outputs $outputs"
2764 all_gtfiles="$all_gtfiles $gtfiles"
2765 for f in .. $gtfiles
2769 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2770 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2776 # Pick up gtfiles for c
2779 . ${srcdir}/c-config-lang.in
2780 all_gtfiles="$all_gtfiles $gtfiles"
2781 for f in .. $gtfiles
2785 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2786 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2791 for language in .. $all_languages
2793 if test $language != ".."
2795 check_languages="$check_languages check-$language"
2799 # Since we can't use `::' targets, we link each language in
2800 # with a set of hooks, reached indirectly via lang.${target}.
2804 target_list="all.build all.cross start.encap rest.encap \
2805 info dvi generated-manpages \
2806 install-normal install-common install-info install-man \
2808 mostlyclean clean distclean extraclean maintainer-clean \
2809 stage1 stage2 stage3 stage4"
2810 for t in $target_list
2813 for lang in .. $all_languages
2815 if test $lang != ".."; then
2819 echo "lang.$t: $x" >> Make-hooks
2824 echo "dir ." > .gdbinit
2825 echo "dir ${srcdir}" >> .gdbinit
2826 if test x$gdb_needs_out_file_path = xyes
2828 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2830 if test "x$subdirs" != x; then
2833 echo "dir ${srcdir}/$s" >> .gdbinit
2836 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2838 # Define variables host_canonical and build_canonical
2839 # because some Cygnus local changes in the Makefile depend on them.
2840 build_canonical=${build}
2841 host_canonical=${host}
2843 if test "${host}" != "${target}" ; then
2844 target_subdir=${target_alias}/
2846 AC_SUBST(build_canonical)
2847 AC_SUBST(host_canonical)
2848 AC_SUBST(target_subdir)
2850 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2851 # absolute path for gcc_tooldir based on inserting the number of up-directory
2852 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2853 # $(libsubdir)/@(unlibsubdir) based path.
2854 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2855 # make and thus we'd get different behavior depending on where we built the
2857 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2858 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2860 changequote(<<, >>)dnl
2861 # An explanation of the sed strings:
2862 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2863 # -e 's|/$||' match a trailing forward slash and eliminates it
2864 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2865 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2867 # (*) Note this pattern overwrites the first character of the string
2868 # with a forward slash if one is not already present. This is not a
2869 # problem because the exact names of the sub-directories concerned is
2870 # unimportant, just the number of them matters.
2872 # The practical upshot of these patterns is like this:
2874 # prefix exec_prefix result
2875 # ------ ----------- ------
2877 # /foo/ /foo/bar ../
2878 # /foo /foo/bar/ ../
2879 # /foo/ /foo/bar/ ../
2880 # /foo /foo/bar/ugg ../../
2883 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2884 changequote([, ])dnl
2886 AC_SUBST(gcc_tooldir)
2889 # Find a directory in which to install a shared libgcc.
2891 AC_ARG_ENABLE(version-specific-runtime-libs,
2892 [ --enable-version-specific-runtime-libs
2893 specify that runtime libraries should be
2894 installed in a compiler-specific directory])
2896 AC_ARG_WITH(slibdir,
2897 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2898 slibdir="$with_slibdir",
2899 if test "${enable_version_specific_runtime_libs+set}" = set; then
2900 slibdir='$(libsubdir)'
2901 elif test "$host" != "$target"; then
2902 slibdir='$(build_tooldir)/lib'
2908 objdir=`${PWDCMD-pwd}`
2911 # Process the language and host/target makefile fragments.
2912 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2914 # Substitute configuration variables
2917 AC_SUBST(all_boot_languages)
2918 AC_SUBST(all_compilers)
2919 AC_SUBST(all_gtfiles)
2920 AC_SUBST(all_gtfiles_files_langs)
2921 AC_SUBST(all_gtfiles_files_files)
2922 AC_SUBST(all_lang_makefiles)
2923 AC_SUBST(all_languages)
2924 AC_SUBST(all_stagestuff)
2925 AC_SUBST(build_exeext)
2926 AC_SUBST(build_install_headers_dir)
2927 AC_SUBST(build_xm_file_list)
2928 AC_SUBST(build_xm_file)
2929 AC_SUBST(build_xm_defines)
2930 AC_SUBST(check_languages)
2931 AC_SUBST(cc_set_by_configure)
2932 AC_SUBST(quoted_cc_set_by_configure)
2933 AC_SUBST(cpp_install_dir)
2934 AC_SUBST(dep_host_xmake_file)
2935 AC_SUBST(dep_tmake_file)
2936 AC_SUBST(extra_headers_list)
2937 AC_SUBST(extra_objs)
2938 AC_SUBST(extra_parts)
2939 AC_SUBST(extra_passes)
2940 AC_SUBST(extra_programs)
2941 AC_SUBST(float_h_file)
2942 AC_SUBST(gcc_config_arguments)
2943 AC_SUBST(gcc_gxx_include_dir)
2944 AC_SUBST(libstdcxx_incdir)
2945 AC_SUBST(gcc_version)
2946 AC_SUBST(gcc_version_full)
2947 AC_SUBST(gcc_version_trigger)
2948 AC_SUBST(host_exeext)
2949 AC_SUBST(host_extra_gcc_objs)
2950 AC_SUBST(host_xm_file_list)
2951 AC_SUBST(host_xm_file)
2952 AC_SUBST(host_xm_defines)
2953 AC_SUBST(out_host_hook_obj)
2955 AC_SUBST(lang_options_files)
2956 AC_SUBST(lang_specs_files)
2957 AC_SUBST(lang_tree_files)
2958 AC_SUBST(local_prefix)
2960 AC_SUBST(objc_boehm_gc)
2962 AC_SUBST(out_object_file)
2963 AC_SUBST(stage_prefix_set_by_configure)
2964 AC_SUBST(quoted_stage_prefix_set_by_configure)
2965 AC_SUBST(symbolic_link)
2966 AC_SUBST(thread_file)
2967 AC_SUBST(tm_file_list)
2969 AC_SUBST(tm_defines)
2970 AC_SUBST(tm_p_file_list)
2973 AC_SUBST(xm_defines)
2974 AC_SUBST(target_alias)
2975 AC_SUBST(c_target_objs)
2976 AC_SUBST(cxx_target_objs)
2977 AC_SUBST(target_cpu_default)
2979 AC_SUBST_FILE(target_overrides)
2980 AC_SUBST_FILE(host_overrides)
2981 AC_SUBST_FILE(language_fragments)
2982 AC_SUBST_FILE(language_hooks)
2984 # Echo that links are built
2985 if test x$host = x$target
2993 if test x$host != x$build
2995 str3=" on a $build system"
2998 if test "x$str2" != x || test "x$str3" != x
3003 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3005 if test "x$str2" != x || test "x$str3" != x
3007 echo " ${str2}${str3}." 1>&2
3010 # Truncate the target if necessary
3011 if test x$host_truncate_target != x; then
3012 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
3015 # Configure the subdirectories
3016 # AC_CONFIG_SUBDIRS($subdirs)
3018 # Create the Makefile
3019 # and configure language subdirectories
3020 AC_OUTPUT($all_outputs,
3022 case x$CONFIG_HEADERS in
3023 xauto-host.h:config.in)
3026 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3027 # bootstrapping and the installation procedure can still use
3028 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3029 # FLAGS_TO_PASS has been modified to solve the problem there.
3030 # This is virtually a duplicate of what happens in configure.lang; we do
3031 # an extra check to make sure this only happens if ln -s can be used.
3032 if test "$symbolic_link" = "ln -s"; then
3033 for d in .. ${subdirs} fixinc ; do
3034 if test $d != ..; then
3035 STARTDIR=`${PWDCMD-pwd}`
3037 for t in stage1 stage2 stage3 stage4 include
3040 $symbolic_link ../$t $t 2>/dev/null
3046 # Avoid having to add intl to our include paths.
3047 if test -f intl/libintl.h; then
3048 echo creating libintl.h
3049 echo '#include "intl/libintl.h"' >libintl.h
3053 symbolic_link='$symbolic_link'