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 # Determine the target- and build-specific subdirectories
38 # Set program_transform_name
41 # Check for bogus environment variables.
42 # Test if LIBRARY_PATH contains the notation for the current directory
43 # since this would lead to problems installing/building glibc.
44 # LIBRARY_PATH contains the current directory if one of the following
46 # - one of the terminals (":" and ";") is the first or last sign
47 # - two terminals occur directly after each other
48 # - the path contains an element with a dot in it
49 AC_MSG_CHECKING(LIBRARY_PATH variable)
51 case ${LIBRARY_PATH} in
52 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
53 library_path_setting="contains current directory"
56 library_path_setting="ok"
60 AC_MSG_RESULT($library_path_setting)
61 if test "$library_path_setting" != "ok"; then
63 *** LIBRARY_PATH shouldn't contain the current directory when
64 *** building gcc. Please change the environment variable
65 *** and run configure again.])
68 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
69 # since this would lead to problems installing/building glibc.
70 # GCC_EXEC_PREFIX contains the current directory if one of the following
72 # - one of the terminals (":" and ";") is the first or last sign
73 # - two terminals occur directly after each other
74 # - the path contains an element with a dot in it
75 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
77 case ${GCC_EXEC_PREFIX} in
78 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
79 gcc_exec_prefix_setting="contains current directory"
82 gcc_exec_prefix_setting="ok"
86 AC_MSG_RESULT($gcc_exec_prefix_setting)
87 if test "$gcc_exec_prefix_setting" != "ok"; then
89 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
90 *** building gcc. Please change the environment variable
91 *** and run configure again.])
98 # Specify the local prefix
100 AC_ARG_WITH(local-prefix,
101 [ --with-local-prefix=DIR specifies directory to put local include],
102 [case "${withval}" in
103 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
105 *) local_prefix=$with_local_prefix ;;
108 # Default local prefix if it is empty
109 if test x$local_prefix = x; then
110 local_prefix=/usr/local
113 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
114 # passed in by the toplevel make and thus we'd get different behavior
115 # depending on where we built the sources.
117 # Specify the g++ header file directory
118 AC_ARG_WITH(gxx-include-dir,
119 [ --with-gxx-include-dir=DIR
120 specifies directory to put g++ header files],
121 [case "${withval}" in
122 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
124 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
127 if test x${gcc_gxx_include_dir} = x; then
128 if test x${enable_version_specific_runtime_libs} = xyes; then
129 gcc_gxx_include_dir='${libsubdir}/include/c++'
131 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
132 changequote(<<, >>)dnl
133 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
138 AC_ARG_WITH(cpp_install_dir,
139 [ --with-cpp-install-dir=DIR
140 install the user visible C preprocessor in DIR
141 (relative to PREFIX) as well as PREFIX/bin],
142 [if test x$withval = xyes; then
143 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
144 elif test x$withval != xno; then
145 cpp_install_dir=$withval
148 # -------------------
149 # Find default linker
150 # -------------------
154 [ --with-gnu-ld arrange to work with GNU ld.],
155 gnu_ld_flag="$with_gnu_ld",
158 # With pre-defined ld
160 [ --with-ld arrange to use the specified ld (full pathname)],
161 DEFAULT_LINKER="$with_ld")
162 if test x"${DEFAULT_LINKER+set}" = x"set"; then
163 if test ! -x "$DEFAULT_LINKER"; then
164 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
165 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
168 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
169 [Define to enable the use of a default linker.])
172 AC_MSG_CHECKING([whether a default linker was specified])
173 if test x"${DEFAULT_LINKER+set}" = x"set"; then
174 if test x"$gnu_ld_flag" = x"no"; then
175 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
177 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
183 # ----------------------
184 # Find default assembler
185 # ----------------------
189 [ --with-gnu-as arrange to work with GNU as],
190 gas_flag="$with_gnu_as",
194 [ --with-as arrange to use the specified as (full pathname)],
195 DEFAULT_ASSEMBLER="$with_as")
196 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
197 if test ! -x "$DEFAULT_ASSEMBLER"; then
198 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
199 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
202 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
203 [Define to enable the use of a default assembler.])
206 AC_MSG_CHECKING([whether a default assembler was specified])
207 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
208 if test x"$gas_flag" = x"no"; then
209 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
211 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
221 # Find the native compiler
224 # autoconf is lame and doesn't give us any substitution variable for this.
225 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
226 NO_MINUS_C_MINUS_O=yes
228 OUTPUT_OPTION='-o $@'
230 AC_SUBST(NO_MINUS_C_MINUS_O)
231 AC_SUBST(OUTPUT_OPTION)
233 # -------------------------
234 # Check C compiler features
235 # -------------------------
237 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
238 ac_cv_prog_cc_no_long_long,
239 [save_CFLAGS="$CFLAGS"
240 CFLAGS="-Wno-long-long"
241 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
242 ac_cv_prog_cc_no_long_long=no)
243 CFLAGS="$save_CFLAGS"])
251 # sizeof(char) is 1 by definition.
252 AC_COMPILE_CHECK_SIZEOF(short)
253 AC_COMPILE_CHECK_SIZEOF(int)
254 AC_COMPILE_CHECK_SIZEOF(long)
255 if test $ac_cv_c_long_long = yes; then
256 AC_COMPILE_CHECK_SIZEOF(long long)
258 if test $ac_cv_c___int64 = yes; then
259 AC_COMPILE_CHECK_SIZEOF(__int64)
266 # See if GNAT has been installed
269 if test x$have_gnat != xno ; then
270 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
271 ac_cv_prog_adac_no_long_long,
272 [cat >conftest.adb <<EOF
273 procedure conftest is begin null; end conftest;
275 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
276 ac_cv_prog_adac_no_long_long=yes
278 ac_cv_prog_adac_no_long_long=no
282 ac_cv_prog_adac_no_long_long=yes
285 # ---------------------
286 # Warnings and checking
287 # ---------------------
290 if test $ac_cv_prog_cc_no_long_long = yes && \
291 test $ac_cv_prog_adac_no_long_long = yes ; then
292 strict1_warn="-pedantic -Wno-long-long"
294 AC_SUBST(strict1_warn)
296 # If the native compiler is GCC, we can enable warnings even in stage1.
297 # That's useful for people building cross-compilers, or just running a
300 if test "x$GCC" = "xyes"; then
301 warn_cflags='$(GCC_WARN_CFLAGS)'
303 AC_SUBST(warn_cflags)
305 # Enable -Werror in bootstrap stage2 and later.
306 # Change the default to "no" on release branches.
307 AC_ARG_ENABLE(werror,
308 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
310 if test x$enable_werror = xyes ; then
315 # Enable expensive internal checks
316 AC_ARG_ENABLE(checking,
317 [ --enable-checking[=LIST]
318 enable expensive run-time checks. With LIST,
319 enable only specific categories of checks.
320 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
321 default is misc,tree,gc,rtlflag],
327 ac_gc_always_collect=
328 case "${enableval}" in
329 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
330 ac_rtlflag_checking=1 ;;
332 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
333 set fnord $enableval; shift
338 misc) ac_checking=1 ;;
339 tree) ac_tree_checking=1 ;;
340 rtlflag) ac_rtlflag_checking=1 ;;
341 rtl) ac_rtl_checking=1 ;;
342 gc) ac_gc_checking=1 ;;
343 gcac) ac_gc_always_collect=1 ;;
344 valgrind) ac_checking_valgrind=1 ;;
345 *) AC_MSG_ERROR(unknown check category $check) ;;
351 # Enable some checks by default for development versions of GCC
352 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
354 if test x$ac_checking != x ; then
355 AC_DEFINE(ENABLE_CHECKING, 1,
356 [Define if you want more run-time sanity checks. This one gets a grab
357 bag of miscellaneous but relatively cheap checks.])
358 nocommon_flag=-fno-common
360 AC_SUBST(nocommon_flag)
361 if test x$ac_tree_checking != x ; then
362 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
363 [Define if you want all operations on trees (the basic data
364 structure of the front ends) to be checked for dynamic type safety
365 at runtime. This is moderately expensive.])
367 if test x$ac_rtl_checking != x ; then
368 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
369 [Define if you want all operations on RTL (the basic data structure
370 of the optimizer and back end) to be checked for dynamic type safety
371 at runtime. This is quite expensive.])
373 if test x$ac_rtlflag_checking != x ; then
374 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
375 [Define if you want RTL flag accesses to be checked against the RTL
376 codes that are supported for each access macro. This is relatively
379 if test x$ac_gc_checking != x ; then
380 AC_DEFINE(ENABLE_GC_CHECKING, 1,
381 [Define if you want the garbage collector to do object poisoning and
382 other memory allocation checks. This is quite expensive.])
384 if test x$ac_gc_always_collect != x ; then
385 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
386 [Define if you want the garbage collector to operate in maximally
387 paranoid mode, validating the entire heap and collecting garbage at
388 every opportunity. This is extremely expensive.])
390 valgrind_path_defines=
392 if test x$ac_checking_valgrind != x ; then
393 # It is certainly possible that there's valgrind but no valgrind.h.
394 # GCC relies on making annotations so we must have both.
395 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
397 [#include <memcheck.h>
398 #ifndef VALGRIND_DISCARD
399 #error VALGRIND_DISCARD not defined
401 [gcc_cv_header_memcheck_h=yes],
402 gcc_cv_header_memcheck_h=no)
403 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
404 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
405 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
406 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
407 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
408 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
410 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
411 valgrind_command="$valgrind_path -q"
412 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
413 [Define if you want to run subprograms and generated programs
414 through valgrind (a memory checker). This is extremely expensive.])
415 if test $gcc_cv_header_memcheck_h = yes; then
416 AC_DEFINE(HAVE_MEMCHECK_H, 1,
417 [Define if valgrind's memcheck.h header is installed.])
420 AC_SUBST(valgrind_path_defines)
421 AC_SUBST(valgrind_command)
423 # Enable code coverage collection
424 AC_ARG_ENABLE(coverage,
425 [ --enable-coverage[=LEVEL]
426 enable compiler\'s code coverage collection.
427 Use to measure compiler performance and locate
428 unused parts of the compiler. With LEVEL, specify
429 optimization. Values are opt, noopt,
431 [case "${enableval}" in
433 coverage_flags="-fprofile-arcs -ftest-coverage -O0 -DSELF_COVERAGE=1"
436 coverage_flags="-fprofile-arcs -ftest-coverage -O2 -DSELF_COVERAGE=2"
439 AC_MSG_ERROR(unknown coverage setting $enableval)
443 AC_SUBST(coverage_flags)
445 # -------------------------------
446 # Miscenalleous configure options
447 # -------------------------------
451 [ --with-stabs arrange to use stabs instead of host debug format],
457 [ --with-elf arrange to use ELF instead of host debug format],
461 # Determine whether or not multilibs are enabled.
462 AC_ARG_ENABLE(multilib,
463 [ --enable-multilib enable library support for multiple ABIs],
464 [], [enable_multilib=yes])
465 AC_SUBST(enable_multilib)
467 # Enable __cxa_atexit for C++.
468 AC_ARG_ENABLE(__cxa_atexit,
469 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
472 # Enable Multibyte Characters for C/C++
473 AC_ARG_ENABLE(c-mbchar,
474 [ --enable-c-mbchar enable multibyte characters for C and C++],
475 if test x$enable_c_mbchar != xno; then
476 AC_DEFINE(MULTIBYTE_CHARS, 1,
477 [Define if you want the C and C++ compilers to support multibyte
478 character sets for source code.])
482 # Pass with no value to take the default
483 # Pass with a value to specify a thread package
484 AC_ARG_ENABLE(threads,
485 [ --enable-threads enable thread usage for target GCC
486 --enable-threads=LIB use LIB thread package for target GCC],,
489 enable_threads_flag=$enable_threads
490 # Check if a valid thread package
491 case x${enable_threads_flag} in
494 target_thread_file='single'
498 target_thread_file=''
500 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
501 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
502 target_thread_file=$enable_threads_flag
505 echo "$enable_threads is an unknown thread package" 1>&2
510 AC_ARG_ENABLE(objc-gc,
511 [ --enable-objc-gc enable the use of Boehm's garbage collector with
512 the GNU Objective-C runtime],
513 if test x$enable_objc_gc = xno; then
521 [ --with-dwarf2 force the default debug format to be DWARF 2],
522 dwarf2="$with_dwarf2",
525 AC_ARG_ENABLE(shared,
526 [ --disable-shared don't provide a shared libgcc],
528 case $enable_shared in
532 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
533 for pkg in $enableval; do
534 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
541 ], [enable_shared=yes])
542 AC_SUBST(enable_shared)
545 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
547 case ${with_sysroot} in
548 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
549 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
552 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
553 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
555 if test "x$exec_prefix" = xNONE; then
556 if test "x$prefix" = xNONE; then
557 test_prefix=/usr/local
562 test_prefix=$exec_prefix
564 case ${TARGET_SYSTEM_ROOT} in
565 "${test_prefix}"|"${test_prefix}/"*|\
566 '${exec_prefix}'|'${exec_prefix}/'*)
567 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
568 TARGET_SYSTEM_ROOT_DEFINE="$t"
573 TARGET_SYSTEM_ROOT_DEFINE=
574 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
576 AC_SUBST(TARGET_SYSTEM_ROOT)
577 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
578 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
580 # -------------------------
581 # Checks for other programs
582 # -------------------------
586 # Find some useful tools
593 # See if we have the mktemp command.
594 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
596 # Do we have a single-tree copy of texinfo?
597 if test -f $srcdir/../texinfo/Makefile.in; then
598 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
599 gcc_cv_prog_makeinfo_modern=yes
600 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
602 # See if makeinfo has been installed and is modern enough
603 # that we can use it.
604 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
605 [GNU texinfo.* \([0-9][0-9.]*\)],
609 if test $gcc_cv_prog_makeinfo_modern = no; then
611 *** Makeinfo is missing or too old.
612 *** Info documentation will not be built.])
615 BUILD_INFO=info AC_SUBST(BUILD_INFO)
618 # Is pod2man recent enough to regenerate manpages?
619 AC_MSG_CHECKING([for recent Pod::Man])
620 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
622 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
628 # 'make compare' can be significantly faster, if cmp itself can
629 # skip bytes instead of using tail. The test being performed is
630 # "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
631 # but we need to sink errors and handle broken shells.
632 AC_MSG_CHECKING([for cmp's capabilities])
635 if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
636 if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
637 make_compare_target=slowcompare
639 make_compare_target=gnucompare
642 make_compare_target=slowcompare
645 AC_SUBST(make_compare_target)
646 AC_MSG_RESULT($make_compare_target)
649 dnl Don't use AC_PROG_LEX; we insist on flex.
650 dnl LEXLIB is not useful in gcc.
651 if test -f $srcdir/../flex/skel.c; then
652 FLEX='$(objdir)/../flex/flex'
654 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
658 # The -L switch is so bison can find its skeleton file.
659 if test -f $srcdir/../bison/bison.simple; then
660 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
662 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
665 # --------------------
666 # Checks for C headers
667 # --------------------
669 AC_MSG_CHECKING(for GNU C library)
670 AC_CACHE_VAL(gcc_cv_glibc,
672 [#include <features.h>],[
673 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
674 #error Not a GNU C library system
678 AC_MSG_RESULT($gcc_cv_glibc)
679 if test $gcc_cv_glibc = yes; then
680 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
685 gcc_AC_HEADER_STDBOOL
688 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
689 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
690 sys/resource.h sys/param.h sys/times.h sys/stat.h \
691 direct.h malloc.h langinfo.h ldfcn.h wchar.h)
693 # Check for thread headers.
694 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
695 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
697 # These tests can't be done till we know if we have limits.h.
705 # Stage specific cflags for build.
711 stage1_cflags="-Wa,-J"
717 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
718 # sources; use -no-cpp-precomp to get to GNU cpp.
719 # Apple's GCC has bugs in designated initializer handling, so disable
721 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
724 AC_SUBST(stage1_cflags)
726 # These libraries may be used by collect2.
727 # We may need a special search path to get them linked.
728 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
730 for libs in '' -lld -lmld \
731 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
732 '-L/usr/lib/cmplrs/cc3.11 -lmld'
735 AC_TRY_LINK_FUNC(ldopen,
736 [gcc_cv_collect2_libs="$libs"; break])
739 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
740 case $gcc_cv_collect2_libs in
742 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
744 AC_SUBST(COLLECT2_LIBS)
746 # When building Ada code on Alpha, we need exc_resume which is usually in
747 # -lexc. So test for it.
750 AC_SEARCH_LIBS(exc_resume, exc)
753 AC_SUBST(GNAT_LIBEXC)
755 # Some systems put ldexp and frexp in libm instead of libc; assume
756 # they're both in the same place. jcf-dump needs them.
759 AC_SEARCH_LIBS(ldexp, m)
764 # Use <inttypes.h> only if it exists,
765 # doesn't clash with <sys/types.h>, and declares intmax_t.
766 AC_MSG_CHECKING(for inttypes.h)
767 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
769 [#include <sys/types.h>
770 #include <inttypes.h>],
772 [gcc_cv_header_inttypes_h=yes],
773 gcc_cv_header_inttypes_h=no)])
774 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
775 if test $gcc_cv_header_inttypes_h = yes; then
776 AC_DEFINE(HAVE_INTTYPES_H, 1,
777 [Define if you have a working <inttypes.h> header file.])
780 dnl Disabled until we have a complete test for buggy enum bitfields.
781 dnl gcc_AC_C_ENUM_BF_UNSIGNED
783 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
784 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
785 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
786 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore)
788 if test x$ac_cv_func_mbstowcs = xyes; then
789 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
790 [ AC_TRY_RUN([#include <stdlib.h>
796 gcc_cv_func_mbstowcs_works=yes,
797 gcc_cv_func_mbstowcs_works=no,
798 gcc_cv_func_mbstowcs_works=yes)])
799 if test x$gcc_cv_func_mbstowcs_works = xyes; then
800 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
801 [Define this macro if mbstowcs does not crash when its
802 first argument is NULL.])
806 AC_CHECK_TYPE(ssize_t, int)
808 # Try to determine the array type of the second argument of getgroups
809 # for the target system (int or gid_t).
811 if test "${target}" = "${build}"; then
812 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
815 # This condition may need some tweaking. It should include all
816 # targets where the array type of the second argument of getgroups
817 # is int and the type of gid_t is not equivalent to int.
818 *-*-sunos* | *-*-ultrix*)
819 TARGET_GETGROUPS_T=int
822 TARGET_GETGROUPS_T=gid_t
826 AC_SUBST(TARGET_GETGROUPS_T)
828 gcc_AC_FUNC_PRINTF_PTR
829 gcc_AC_FUNC_MMAP_BLACKLIST
834 *** UWIN may not be used as a host platform because
835 *** linking with posix.dll is not allowed by the GNU GPL])
838 # Under VMS, vfork works very different than on Unix. The standard test
839 # won't work, and it isn't easily adaptable. It makes more sense to
841 ac_cv_func_vfork_works=yes
848 # We will need to find libiberty.h and ansidecl.h
849 saved_CFLAGS="$CFLAGS"
850 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
851 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
852 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
853 fprintf_unlocked strstr errno vasprintf \
854 malloc realloc calloc free basename getopt clock, , ,[
855 #include "ansidecl.h"
856 #include "system.h"])
858 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
859 #include "ansidecl.h"
861 #ifdef HAVE_SYS_RESOURCE_H
862 #include <sys/resource.h>
867 #include "ansidecl.h"
869 #ifdef HAVE_SYS_RESOURCE_H
870 #include <sys/resource.h>
872 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
873 [Define to \`long' if <sys/resource.h> doesn't define.])])
875 gcc_AC_CHECK_DECLS(ldgetname, , ,[
876 #include "ansidecl.h"
883 gcc_AC_CHECK_DECLS(times, , ,[
884 #include "ansidecl.h"
886 #ifdef HAVE_SYS_TIMES_H
887 #include <sys/times.h>
891 # More time-related stuff.
892 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
894 #include "ansidecl.h"
896 #ifdef HAVE_SYS_TIMES_H
897 #include <sys/times.h>
899 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
900 if test $ac_cv_struct_tms = yes; then
901 AC_DEFINE(HAVE_STRUCT_TMS, 1,
902 [Define if <sys/times.h> defines struct tms.])
905 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
906 # revisit after autoconf 2.50.
907 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
909 #include "ansidecl.h"
911 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
912 if test $gcc_cv_type_clock_t = yes; then
913 AC_DEFINE(HAVE_CLOCK_T, 1,
914 [Define if <time.h> defines clock_t.])
917 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
919 #include "ansidecl.h"
922 [if ((uchar *)0) return 0;
923 if (sizeof(uchar)) return 0;],
924 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
925 if test $ac_cv_type_uchar = yes; then
926 AC_DEFINE(HAVE_UCHAR, 1,
927 [Define if <sys/types.h> defines \`uchar'.])
930 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
931 CFLAGS="$saved_CFLAGS"
933 gcc_AC_INITFINI_ARRAY
935 # mkdir takes a single argument on some systems.
936 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
944 # With Setjmp/Longjmp based exception handling.
945 AC_ARG_ENABLE(sjlj-exceptions,
946 [ --enable-sjlj-exceptions
947 arrange to use setjmp/longjmp exception handling],
948 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
949 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
950 [Define 0/1 to force the choice for exception handling model.])])
952 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
953 # Use libunwind based exception handling.
954 AC_ARG_ENABLE(libunwind-exceptions,
955 [ --enable-libunwind-exceptions force use libunwind for exceptions],
956 use_libunwind_exceptions=$enableval,
957 use_libunwind_exceptions=$use_libunwind_default)
958 if test x"$use_libunwind_exceptions" = xyes; then
959 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
960 [Define if gcc should use -lunwind.])
963 # --------------------------------------------------------
964 # Build, host, and target specific configuration fragments
965 # --------------------------------------------------------
970 build_install_headers_dir=install-headers-tar
977 # Decode the host machine, then the target machine.
978 # For the host machine, we save the xm_file variable as host_xm_file;
979 # then we decode the target machine and forget everything else
980 # that came from the host machine.
981 for machine in $build $host $target; do
982 . ${srcdir}/config.gcc
985 extra_objs="${host_extra_objs} ${extra_objs}"
987 # Default the target-machine variables that were not explicitly set.
988 if test x"$tm_file" = x
989 then tm_file=$cpu_type/$cpu_type.h; fi
991 if test x"$extra_headers" = x
992 then extra_headers=; fi
994 if test x$md_file = x
995 then md_file=$cpu_type/$cpu_type.md; fi
997 if test x$out_file = x
998 then out_file=$cpu_type/$cpu_type.c; fi
1000 if test x"$tmake_file" = x
1001 then tmake_file=$cpu_type/t-$cpu_type
1004 if test x"$dwarf2" = xyes
1005 then tm_file="$tm_file tm-dwarf2.h"
1008 # Say what files are being used for the output code and MD file.
1009 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1010 echo "Using \`$srcdir/config/$md_file' as machine description file."
1012 # If any of the xm_file variables contain nonexistent files, warn
1013 # about them and drop them.
1016 for x in $build_xm_file; do
1017 if test -f $srcdir/config/$x
1019 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1025 for x in $host_xm_file; do
1026 if test -f $srcdir/config/$x
1028 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1034 for x in $xm_file; do
1035 if test -f $srcdir/config/$x
1037 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1043 for f in $tm_file; do
1046 if test $count = ax; then
1047 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1049 echo "Using the following target machine macro files:"
1050 for f in $tm_file; do
1051 echo " $srcdir/config/$f"
1055 if test x$need_64bit_hwint = xyes; then
1056 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1057 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1061 for f in $host_xm_file; do
1064 if test $count = a; then
1066 elif test $count = ax; then
1067 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1069 echo "Using the following host machine macro files:"
1070 for f in $host_xm_file; do
1071 echo " $srcdir/config/$f"
1074 echo "Using ${out_host_hook_obj} for host machine hooks."
1076 if test "$host_xm_file" != "$build_xm_file"; then
1078 for f in $build_xm_file; do
1081 if test $count = a; then
1083 elif test $count = ax; then
1084 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1086 echo "Using the following build machine macro files:"
1087 for f in $build_xm_file; do
1088 echo " $srcdir/config/$f"
1093 if test x$thread_file = x; then
1094 if test x$target_thread_file != x; then
1095 thread_file=$target_thread_file
1097 thread_file='single'
1101 if test x$enable___cxa_atexit = xyes || \
1102 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1103 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1104 [Define if you want to use __cxa_atexit, rather than atexit, to
1105 register C++ destructors for local statics and global objects.
1106 This is essential for fully standards-compliant handling of
1107 destructors, but requires __cxa_atexit in libc.])
1110 # Look for a file containing extra machine modes.
1111 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1112 extra_modes_file='$(srcdir)'/config/${extra_modes}
1113 AC_SUBST(extra_modes_file)
1114 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1115 [Define to the name of a file containing a list of extra machine modes
1116 for this architecture.])
1117 AC_DEFINE(EXTRA_CC_MODES, 1,
1118 [Define if the target architecture needs extra machine modes to represent
1119 the results of comparisons.])
1122 # auto-host.h is the file containing items generated by autoconf and is
1123 # the first file included by config.h.
1124 # If host=build, it is correct to have bconfig include auto-host.h
1125 # as well. If host!=build, we are in error and need to do more
1126 # work to find out the build config parameters.
1127 if test x$host = x$build
1129 build_auto=auto-host.h
1132 # We create a subdir, then run autoconf in the subdir.
1133 # To prevent recursion we set host and build for the new
1134 # invocation of configure to the build for this invocation
1141 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1142 *) realsrcdir=../${srcdir};;
1144 saved_CFLAGS="${CFLAGS}"
1145 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1146 ${realsrcdir}/configure \
1147 --target=$target_alias --host=$build_alias --build=$build_alias
1148 CFLAGS="${saved_CFLAGS}"
1150 # We just finished tests for the build machine, so rename
1151 # the file auto-build.h in the gcc directory.
1152 mv auto-host.h ../auto-build.h
1155 build_auto=auto-build.h
1156 FORBUILD=../${build_subdir}
1160 tm_file="${tm_file} defaults.h"
1161 tm_p_file="${tm_p_file} tm-preds.h"
1162 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1163 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1164 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1165 # put this back in temporarily.
1166 xm_file="ansidecl.h ${xm_file}"
1172 # Get the version trigger filename from the toplevel
1173 if test "${with_gcc_version_trigger+set}" = set; then
1174 gcc_version_trigger=$with_gcc_version_trigger
1176 gcc_version_trigger=${srcdir}/version.c
1179 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1180 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1182 # Compile in configure arguments.
1183 if test -f configargs.h ; then
1184 # Being re-configured.
1185 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1186 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1188 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1190 cat > configargs.h <<EOF
1191 /* Generated automatically. */
1192 static const char configuration_arguments[] = "$gcc_config_arguments";
1193 static const char thread_model[] = "$thread_file";
1195 static const struct {
1196 const char *name, *value;
1197 } configure_default_options[] = $configure_default_options;
1201 # Internationalization
1203 VERSION="$gcc_version"
1207 # Enable NLS support by default
1209 [ --enable-nls use Native Language Support (default)],
1212 # if cross compiling, disable NLS support.
1213 # It's not worth the trouble, at least for now.
1215 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1216 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1222 # Windows32 Registry support for specifying GCC installation paths.
1223 AC_ARG_ENABLE(win32-registry,
1224 [ --disable-win32-registry
1225 disable lookup of installation paths in the
1226 Registry on Windows hosts
1227 --enable-win32-registry enable registry lookup (default)
1228 --enable-win32-registry=KEY
1229 use KEY instead of GCC version as the last portion
1230 of the registry key],,)
1232 win32 | pe | cygwin* | mingw32* | uwin*)
1233 AC_MSG_CHECKING(whether windows registry support is requested)
1234 if test "x$enable_win32_registry" != xno; then
1235 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1236 [Define to 1 if installation paths should be looked up in Windows32
1237 Registry. Ignored on non windows32 hosts.])
1239 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1244 # Check if user specified a different registry key.
1245 case "x${enable_win32_registry}" in
1248 gcc_cv_win32_registry_key="$VERSION"
1251 # no registry lookup.
1252 gcc_cv_win32_registry_key=''
1255 # user-specified key.
1256 gcc_cv_win32_registry_key="$enable_win32_registry"
1260 if test "x$enable_win32_registry" != xno; then
1261 AC_MSG_CHECKING(registry key on windows hosts)
1262 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1263 [Define to be the last portion of registry key on windows hosts.])
1264 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1269 # Get an absolute path to the GCC top-level source directory
1270 holddir=`${PWDCMD-pwd}`
1272 topdir=`${PWDCMD-pwd}`
1275 # Conditionalize the makefile for this host machine.
1276 # Make-host contains the concatenation of all host makefile fragments
1277 # [there can be more than one]. This file is built by configure.frag.
1278 host_overrides=Make-host
1279 dep_host_xmake_file=
1280 for f in .. ${host_xmake_file}
1282 if test -f ${srcdir}/config/$f
1284 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1288 # Conditionalize the makefile for this target machine.
1289 # Make-target contains the concatenation of all host makefile fragments
1290 # [there can be more than one]. This file is built by configure.frag.
1291 target_overrides=Make-target
1293 for f in .. ${tmake_file}
1295 if test -f ${srcdir}/config/$f
1297 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1301 symbolic_link='ln -s'
1303 # If the host doesn't support symlinks, modify CC in
1304 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1305 # Otherwise, we can use "CC=$(CC)".
1307 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1309 cc_set_by_configure="\$(CC)"
1310 quoted_cc_set_by_configure="\$(CC)"
1311 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1312 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1315 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1317 symbolic_link="cp -p"
1321 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1322 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1323 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1324 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1328 out_object_file=`basename $out_file .c`.o
1331 for f in $tm_file; do
1334 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1336 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1337 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1342 for f in $tm_p_file; do
1345 tm_p_file_list="${tm_p_file_list} $f" ;;
1346 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1351 for f in $host_xm_file; do
1354 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1356 host_xm_file_list="${host_xm_file_list} $f" ;;
1358 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1359 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1364 for f in $build_xm_file; do
1367 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1368 auto-build.h | auto-host.h )
1369 build_xm_file_list="${build_xm_file_list} $f" ;;
1371 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1372 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1376 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1377 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1378 CROSS= AC_SUBST(CROSS)
1379 ALL=all.internal AC_SUBST(ALL)
1380 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1381 if test x$host != x$target
1383 CROSS="-DCROSS_COMPILE"
1385 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1386 case "$host","$target" in
1387 i?86-*-*,x86_64-*-* \
1388 | powerpc*-*-*,powerpc64*-*-*)
1389 CROSS="$CROSS -DNATIVE_CROSS" ;;
1391 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1392 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1393 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1396 # If this is a cross-compiler that does not
1397 # have its own set of headers then define
1400 # If this is using newlib, without having the headers available now,
1401 # then define inhibit_libc in LIBGCC2_CFLAGS.
1402 # This prevents libgcc2 from containing any code which requires libc
1405 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1406 test x$with_newlib = xyes ; } &&
1407 test "x$with_headers" = x ; then
1408 inhibit_libc=-Dinhibit_libc
1410 AC_SUBST(inhibit_libc)
1412 # When building gcc with a cross-compiler, we need to adjust things so
1413 # that the generator programs are still built with the native compiler.
1414 # Also, we cannot run fixincludes or fix-header.
1416 # These are the normal (build=host) settings:
1417 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1418 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1419 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1420 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1422 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1423 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1425 # And these apply if build != host.
1426 if test x$build != x$host
1429 BUILD_PREFIX_1=build-
1430 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1432 if test "x$TARGET_SYSTEM_ROOT" = x; then
1438 # Expand extra_headers to include complete path.
1439 # This substitutes for lots of t-* files.
1441 if test "x$extra_headers" = x
1444 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1445 for file in $extra_headers;
1447 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1451 # Add a definition of USE_COLLECT2 if system wants one.
1452 case $use_collect2 in
1453 no) use_collect2= ;;
1456 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1457 xm_defines="${xm_defines} USE_COLLECT2"
1461 # Identify the assembler which will work hand-in-glove with the newly
1462 # built GCC, so that we can examine its features. This is the assembler
1463 # which will be driven by the driver program.
1465 # If build != host, and we aren't building gas in-tree, we identify a
1466 # build->target assembler and hope that it will have the same features
1467 # as the host->target assembler we'll be using.
1468 AC_MSG_CHECKING(what assembler to use)
1471 gcc_cv_gas_major_version=
1472 gcc_cv_gas_minor_version=
1473 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1474 if test -x "$DEFAULT_ASSEMBLER"; then
1475 gcc_cv_as="$DEFAULT_ASSEMBLER"
1476 elif test -x "$AS"; then
1478 elif test -x as$host_exeext; then
1479 # Build using assembler in the current directory.
1480 gcc_cv_as=./as$host_exeext
1481 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1482 && test -f ../gas/Makefile; then
1483 # Single tree build which includes gas.
1485 _gcc_COMPUTE_GAS_VERSION
1486 rm -f as$host_exeext
1487 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1490 if test "x$gcc_cv_as" = x; then
1491 # Search the same directories that the installed compiler will
1492 # search. Else we may find the wrong assembler and lose. If we
1493 # do not find a suitable assembler binary, then try the user's
1496 # Also note we have to check MD_EXEC_PREFIX before checking the
1497 # user's path. Unfortunately, there is no good way to get at the
1498 # value of MD_EXEC_PREFIX here. So we do a brute force search
1499 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1500 # to be fixed as part of the make/configure rewrite too.
1502 if test "x$exec_prefix" = xNONE; then
1503 if test "x$prefix" = xNONE; then
1504 test_prefix=/usr/local
1509 test_prefix=$exec_prefix
1512 # If the loop below does not find an assembler, then use whatever
1513 # one we can find in the users's path.
1515 if test "x$program_prefix" != xNONE; then
1516 gcc_cv_as=${program_prefix}as$host_exeext
1518 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1521 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1522 $test_prefix/lib/gcc-lib/$target_alias \
1523 /usr/lib/gcc/$target_alias/$gcc_version \
1524 /usr/lib/gcc/$target_alias \
1525 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1526 $test_prefix/$target_alias/bin"
1528 if test x$host = x$target; then
1529 test_dirs="$test_dirs \
1534 /bsd43/usr/lib/cmplrs/cc \
1535 /usr/cross64/usr/bin \
1536 /usr/lib/cmplrs/cc \
1537 /sysv/usr/lib/cmplrs/cc \
1538 /svr4/usr/lib/cmplrs/cc \
1542 for dir in $test_dirs; do
1543 if test -x $dir/as$host_exeext; then
1544 gcc_cv_as=$dir/as$host_exeext
1549 case $in_tree_gas in
1551 AC_MSG_RESULT("newly built gas")
1554 AC_MSG_RESULT($gcc_cv_as)
1558 # Identify the linker which will work hand-in-glove with the newly
1559 # built GCC, so that we can examine its features. This is the linker
1560 # which will be driven by the driver program.
1562 # If build != host, and we aren't building gas in-tree, we identify a
1563 # build->target linker and hope that it will have the same features
1564 # as the host->target linker we'll be using.
1565 AC_MSG_CHECKING(what linker to use)
1568 gcc_cv_gld_major_version=
1569 gcc_cv_gld_minor_version=
1570 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1571 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1572 if test -x "$DEFAULT_LINKER"; then
1573 gcc_cv_ld="$DEFAULT_LINKER"
1574 elif test -x "$LD"; then
1576 elif test -x collect-ld$host_exeext; then
1577 # Build using linker in the current directory.
1578 gcc_cv_ld=./collect-ld$host_exeext
1579 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1580 && test -f ../ld/Makefile; then
1581 # Single tree build which includes ld.
1583 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
1586 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1588 if test x$gcc_cv_gld_version != x; then
1593 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1594 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1596 rm -f collect-ld$host_exeext
1597 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1601 if test "x$gcc_cv_ld" = x; then
1602 # Search the same directories that the installed compiler will
1603 # search. Else we may find the wrong linker and lose. If we
1604 # do not find a suitable linker binary, then try the user's
1607 # Also note we have to check MD_EXEC_PREFIX before checking the
1608 # user's path. Unfortunately, there is no good way to get at the
1609 # value of MD_EXEC_PREFIX here. So we do a brute force search
1610 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1611 # to be fixed as part of the make/configure rewrite too.
1613 if test "x$exec_prefix" = xNONE; then
1614 if test "x$prefix" = xNONE; then
1615 test_prefix=/usr/local
1620 test_prefix=$exec_prefix
1623 # If the loop below does not find an linker, then use whatever
1624 # one we can find in the users's path.
1626 if test "x$program_prefix" != xNONE; then
1627 gcc_cv_ld=${program_prefix}ld$host_exeext
1629 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1632 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1633 $test_prefix/lib/gcc-lib/$target_alias \
1634 /usr/lib/gcc/$target_alias/$gcc_version \
1635 /usr/lib/gcc/$target_alias \
1636 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1637 $test_prefix/$target_alias/bin"
1639 if test x$host = x$target; then
1640 test_dirs="$test_dirs \
1645 /bsd43/usr/lib/cmplrs/cc \
1646 /usr/cross64/usr/bin \
1647 /usr/lib/cmplrs/cc \
1648 /sysv/usr/lib/cmplrs/cc \
1649 /svr4/usr/lib/cmplrs/cc \
1653 for dir in $test_dirs; do
1654 if test -x $dir/ld$host_exeext; then
1655 gcc_cv_ld=$dir/ld$host_exeext
1662 AC_MSG_RESULT("newly built ld")
1665 AC_MSG_RESULT($gcc_cv_ld)
1669 # Figure out what nm we will be using.
1670 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1671 AC_MSG_CHECKING(what nm to use)
1673 if test -x nm$host_exeext; then
1674 gcc_cv_nm=./nm$host_exeext
1675 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1676 && test -f ../binutils/Makefile; then
1677 # Single tree build which includes binutils.
1679 gcc_cv_nm=./nm$host_exeext
1680 rm -f nm$host_exeext
1681 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1682 elif test "x$program_prefix" != xNONE; then
1683 gcc_cv_nm=${program_prefix}nm$host_exeext
1685 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1688 yes) AC_MSG_RESULT("newly built nm") ;;
1689 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1692 # Figure out what objdump we will be using.
1693 AC_MSG_CHECKING(what objdump to use)
1695 if test -x objdump$host_exeext; then
1696 gcc_cv_objdump=./objdump$host_exeext
1697 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1698 && test -f ../binutils/Makefile; then
1699 # Single tree build which includes binutils.
1701 gcc_cv_objdump=./objdump$host_exeext
1702 rm -f objdump$host_exeext
1703 $symbolic_link ../binutils/objdump$host_exeext \
1704 objdump$host_exeext 2>/dev/null
1705 elif test "x$program_prefix" != xNONE; then
1706 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1708 gcc_cv_objdump=`echo objdump | \
1709 sed ${program_transform_name}`$host_exeext
1711 case $in_tree_objdump in
1712 yes) AC_MSG_RESULT("newly built objdump") ;;
1713 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1716 # Figure out what assembler alignment features are present.
1717 AC_MSG_CHECKING(assembler alignment features)
1718 gcc_cv_as_alignment_features=none
1719 if test $in_tree_gas = yes; then
1720 # Gas version 2.6 and later support for .balign and .p2align.
1721 gcc_GAS_VERSION_GTE_IFELSE(2,6,0,[
1722 gcc_cv_as_alignment_features=".balign and .p2align"
1723 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1725 # Gas version 2.8 and later support specifying the maximum
1726 # bytes to skip when using .p2align.
1727 gcc_GAS_VERSION_GTE_IFELSE(2,8,0,[
1728 gcc_cv_as_alignment_features=".p2align including maximum skip"
1729 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1731 elif test x$gcc_cv_as != x; then
1732 # Check if we have .balign and .p2align
1733 echo ".balign 4" > conftest.s
1734 echo ".p2align 2" >> conftest.s
1735 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1736 gcc_cv_as_alignment_features=".balign and .p2align"
1737 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1739 rm -f conftest.s conftest.o
1740 # Check if specifying the maximum bytes to skip when
1741 # using .p2align is supported.
1742 echo ".p2align 4,,7" > conftest.s
1743 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1744 gcc_cv_as_alignment_features=".p2align including maximum skip"
1745 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1747 rm -f conftest.s conftest.o
1749 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1751 AC_MSG_CHECKING(assembler subsection support)
1752 gcc_cv_as_subsections=no
1753 if test $in_tree_gas = yes ; then
1754 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
1755 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1756 gcc_cv_as_subsections="working .subsection -1"
1759 elif test x$gcc_cv_as != x; then
1760 # Check if we have .subsection
1761 echo ".subsection 1" > conftest.s
1762 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1763 gcc_cv_as_subsections=".subsection"
1764 if test x$gcc_cv_nm != x; then
1765 cat > conftest.s <<EOF
1766 conftest_label1: .word 0
1768 conftest_label2: .word 0
1771 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1772 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1773 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1774 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1777 gcc_cv_as_subsections="working .subsection -1"
1782 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1784 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1785 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1786 [Define if your assembler supports .subsection and .subsection -1 starts
1787 emitting at the beginning of your section.])
1789 AC_MSG_RESULT($gcc_cv_as_subsections)
1791 AC_MSG_CHECKING(assembler weak support)
1793 if test $in_tree_gas = yes ; then
1794 gcc_GAS_VERSION_GTE_IFELSE(2,2,0,[
1795 gcc_cv_as_weak="yes"
1797 elif test x$gcc_cv_as != x; then
1798 # Check if we have .weak
1799 echo " .weak foobar" > conftest.s
1800 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1801 gcc_cv_as_weak="yes"
1803 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1805 if test x"$gcc_cv_as_weak" = xyes; then
1806 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1808 AC_MSG_RESULT($gcc_cv_as_weak)
1810 AC_MSG_CHECKING(assembler hidden support)
1812 if test $in_tree_gas = yes ; then
1813 gcc_GAS_VERSION_GTE_IFELSE(2,12,1,[
1814 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1815 gcc_cv_as_hidden="yes"
1818 elif test x$gcc_cv_as != x; then
1819 # Check if we have .hidden
1820 echo " .hidden foobar" > conftest.s
1821 echo "foobar:" >> conftest.s
1822 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1823 gcc_cv_as_hidden="yes"
1825 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1827 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1828 # This is irritatingly difficult to feature test for. Look for
1829 # the date string after the version number.
1830 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1831 if echo "$ld_ver" | grep GNU > /dev/null; then
1833 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\)\([ ].*\|\)$,\1,p'`
1834 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1835 if test 0"$ld_date" -lt 20020404; then
1836 if test -n "$ld_date"; then
1837 # If there was date string, but was earlier than 2002-04-04, fail
1838 gcc_cv_as_hidden="no"
1839 elif test -z "$ld_vers"; then
1840 # If there was no date string nor ld version number, something is wrong
1841 gcc_cv_as_hidden="no"
1843 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1844 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1845 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1846 test -z "$ld_vers_patch" && ld_vers_patch=0
1847 if test "$ld_vers_major" -lt 2; then
1848 gcc_cv_as_hidden="no"
1849 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1850 gcc_cv_as_hidden="no"
1851 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1852 -a "$ld_vers_patch" -eq 0; then
1853 gcc_cv_as_hidden="no"
1862 if test x"$gnu_ld_flag" = x"no"; then
1863 # Even if using gas with .hidden support, the resulting object files
1864 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1865 # N64 linkers, the problem is that the linker refuses to accept
1866 # -call_shared (passed by default to the linker) and -r (used to
1867 # link the object file generated without .hidden directives with
1868 # one that hides symbols), so we also lose.
1873 if test x"$gcc_cv_as_hidden" = xyes; then
1874 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1875 [Define if your assembler supports .hidden.])
1877 AC_MSG_RESULT($gcc_cv_as_hidden)
1878 libgcc_visibility=$gcc_cv_as_hidden
1879 AC_SUBST(libgcc_visibility)
1881 AC_MSG_CHECKING(assembler leb128 support)
1883 if test $in_tree_gas = yes ; then
1884 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
1885 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1886 gcc_cv_as_leb128="yes"
1889 elif test x$gcc_cv_as != x; then
1890 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1891 cat > conftest.s <<EOF
1899 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1900 gcc_cv_as_leb128="yes"
1902 # GAS versions before 2.11 do not support uleb128,
1903 # despite appearing to.
1904 # ??? There exists an elf-specific test that will crash
1905 # the assembler. Perhaps it's better to figure out whether
1906 # arbitrary sections are supported and try the test.
1907 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1908 if echo "$as_ver" | grep GNU > /dev/null; then
1910 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1911 as_major=`echo $as_ver | sed 's/\..*//'`
1912 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1914 if test $as_major -eq 2 -a $as_minor -lt 11; then
1915 gcc_cv_as_leb128="no"
1919 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1921 if test x"$gcc_cv_as_leb128" = xyes; then
1922 AC_DEFINE(HAVE_AS_LEB128, 1,
1923 [Define if your assembler supports .uleb128.])
1925 AC_MSG_RESULT($gcc_cv_as_leb128)
1927 AC_MSG_CHECKING(assembler eh_frame optimization)
1928 gcc_cv_as_eh_frame=no
1929 if test $in_tree_gas = yes ; then
1930 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1931 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1932 gcc_cv_as_eh_frame="yes"
1935 elif test x$gcc_cv_as != x; then
1936 # Check if this is GAS.
1937 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1938 rm -f a.out 2> /dev/null
1939 if echo "$as_ver" | grep GNU > /dev/null; then
1940 # Versions up to and including 2.11.0 may mis-optimize
1941 # .eh_frame data. Try something.
1942 cat > conftest.s <<EOF
1949 .section .eh_frame,"aw",@progbits
1951 .4byte .LECIE1-.LSCIE1
1965 .4byte .LEFDE1-.LASFDE1
1967 .4byte .LASFDE1-__FRAME_BEGIN__
1976 cat > conftest.lit <<EOF
1977 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1978 0010 01000000 12000000 18000000 00000000 ................
1979 0020 08000000 04080000 0044 .........D
1981 cat > conftest.big <<EOF
1982 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1983 0010 00000001 00000012 00000018 00000000 ................
1984 0020 00000008 04000000 0844 .........D
1986 # If the assembler didn't choke, and we can objdump,
1987 # and we got the correct data, then succeed.
1988 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1989 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1990 | tail -3 > conftest.got \
1991 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1992 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1994 gcc_cv_as_eh_frame="yes"
1996 gcc_cv_as_eh_frame="bad"
1997 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1998 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1999 [Define if your assembler mis-optimizes .eh_frame data.])
2005 AC_MSG_RESULT($gcc_cv_as_eh_frame)
2007 AC_MSG_CHECKING(assembler section merging support)
2008 gcc_cv_as_shf_merge=no
2009 if test $in_tree_gas = yes ; then
2010 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2011 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
2012 gcc_cv_as_shf_merge=yes
2015 elif test x$gcc_cv_as != x; then
2016 # Check if we support SHF_MERGE sections
2017 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
2018 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
2019 gcc_cv_as_shf_merge=yes
2021 rm -f conftest.s conftest.o
2023 if test x"$gcc_cv_as_shf_merge" = xyes; then
2024 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
2025 [Define if your assembler supports marking sections with SHF_MERGE flag.])
2027 AC_MSG_RESULT($gcc_cv_as_shf_merge)
2029 AC_MSG_CHECKING(assembler thread-local storage support)
2039 .section ".tdata","awT",@progbits
2042 ldq $27,__tls_get_addr($29) !literal!1
2043 lda $16,foo($29) !tlsgd!1
2044 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2045 ldq $27,__tls_get_addr($29) !literal!2
2046 lda $16,foo($29) !tlsldm!2
2047 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2048 ldq $1,foo($29) !gotdtprel
2049 ldah $2,foo($29) !dtprelhi
2050 lda $3,foo($2) !dtprello
2051 lda $4,foo($29) !dtprel
2052 ldq $1,foo($29) !gottprel
2053 ldah $2,foo($29) !tprelhi
2054 lda $3,foo($2) !tprello
2055 lda $4,foo($29) !tprel'
2062 .section ".tdata","awT",@progbits
2066 leal foo@TLSGD(,%ebx,1), %eax
2067 leal foo@TLSLDM(%ebx), %eax
2068 leal foo@DTPOFF(%eax), %edx
2069 movl foo@GOTTPOFF(%ebx), %eax
2070 subl foo@GOTTPOFF(%ebx), %eax
2071 addl foo@GOTNTPOFF(%ebx), %eax
2072 movl foo@INDNTPOFF, %eax
2073 movl $foo@TPOFF, %eax
2074 subl $foo@TPOFF, %eax
2075 leal foo@NTPOFF(%ecx), %eax'
2081 .section ".tdata","awT",@progbits
2085 leaq foo@TLSGD(%rip), %rdi
2086 leaq foo@TLSLD(%rip), %rdi
2087 leaq foo@DTPOFF(%rax), %rdx
2088 movq foo@GOTTPOFF(%rip), %rax
2089 movq $foo@TPOFF, %rax'
2095 .section ".tdata","awT",@progbits
2098 addl r16 = @ltoff(@dtpmod(foo#)), gp
2099 addl r17 = @ltoff(@dtprel(foo#)), gp
2100 addl r18 = @ltoff(@tprel(foo#)), gp
2101 addl r19 = @dtprel(foo#), gp
2102 adds r21 = @dtprel(foo#), r13
2103 movl r23 = @dtprel(foo#)
2104 addl r20 = @tprel(foo#), gp
2105 adds r22 = @tprel(foo#), r13
2106 movl r24 = @tprel(foo#)'
2112 .section ".tdata","awT",@progbits
2120 addi 3,31,ld0@got@tlsgd
2122 addi 3,31,x1@got@tlsld
2125 addis 9,3,x2@dtprel@ha
2126 addi 9,9,x2@dtprel@l
2127 lwz 9,x3@got@tprel(31)
2130 addis 9,2,x2@tprel@ha
2131 addi 9,9,x2@tprel@l'
2138 .section ".tdata","awT",@progbits
2146 addi 3,2,ld0@got@tlsgd
2152 addi 3,2,x1@got@tlsld
2158 addis 9,3,x2@dtprel@ha
2159 addi 9,9,x2@dtprel@l
2162 ld 9,x3@got@dtprel(2)
2172 .section ".tdata","awT",@progbits
2181 l %r1,foo@GOTNTPOFF(%r12)
2182 l %r1,0(%r1):tls_load:foo
2183 bas %r14,0(%r1,%r13):tls_gdcall:foo
2184 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2191 .section ".tdata","awT",@progbits
2199 lg %r1,foo@GOTNTPOFF(%r12)
2200 larl %r1,foo@INDNTPOFF
2201 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2202 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2205 tls_as_opt="-m64 -Aesame"
2208 if test -z "$tls_first_major"; then
2210 elif test $in_tree_gas = yes ; then
2211 gcc_GAS_VERSION_GTE_IFELSE($tls_first_major,$tls_first_minor,0,[
2214 elif test x$gcc_cv_as != x; then
2215 echo "$conftest_s" > conftest.s
2216 if $gcc_cv_as $tls_as_opt --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2220 rm -f conftest.s conftest.o
2222 if test "$gcc_cv_as_tls" = yes; then
2223 AC_DEFINE(HAVE_AS_TLS, 1,
2224 [Define if your assembler supports thread-local storage.])
2226 AC_MSG_RESULT($gcc_cv_as_tls)
2229 # All TARGET_ABI_OSF targets.
2230 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2231 AC_CACHE_CHECK([assembler supports explicit relocations],
2232 gcc_cv_as_explicit_relocs, [
2233 gcc_cv_as_explicit_relocs=unknown
2234 if test $in_tree_gas = yes ; then
2235 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2236 gcc_cv_as_explicit_relocs=yes
2238 elif test x$gcc_cv_as != x; then
2239 cat > conftest.s << 'EOF'
2242 extbl $3, $2, $3 !lituse_bytoff!1
2243 ldq $2, a($29) !literal!1
2244 ldq $4, b($29) !literal!2
2245 ldq_u $3, 0($2) !lituse_base!1
2246 ldq $27, f($29) !literal!5
2247 jsr $26, ($27), f !lituse_jsr!5
2248 ldah $29, 0($26) !gpdisp!3
2249 lda $0, c($29) !gprel
2250 ldah $1, d($29) !gprelhigh
2251 lda $1, d($1) !gprellow
2252 lda $29, 0($29) !gpdisp!3
2254 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2255 gcc_cv_as_explicit_relocs=yes
2257 gcc_cv_as_explicit_relocs=no
2259 rm -f conftest.s conftest.o
2262 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2263 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2264 [Define if your assembler supports explicit relocations.])
2268 AC_CACHE_CHECK([assembler .register pseudo-op support],
2269 gcc_cv_as_register_pseudo_op, [
2270 gcc_cv_as_register_pseudo_op=unknown
2271 if test x$gcc_cv_as != x; then
2272 # Check if we have .register
2273 echo ".register %g2, #scratch" > conftest.s
2274 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2275 gcc_cv_as_register_pseudo_op=yes
2277 gcc_cv_as_register_pseudo_op=no
2279 rm -f conftest.s conftest.o
2282 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2283 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2284 [Define if your assembler supports .register.])
2287 AC_CACHE_CHECK([assembler supports -relax],
2288 gcc_cv_as_relax_opt, [
2289 gcc_cv_as_relax_opt=unknown
2290 if test x$gcc_cv_as != x; then
2291 # Check if gas supports -relax
2292 echo ".text" > conftest.s
2293 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2294 gcc_cv_as_relax_opt=yes
2296 gcc_cv_as_relax_opt=no
2298 rm -f conftest.s conftest.o
2301 if test "x$gcc_cv_as_relax_opt" = xyes; then
2302 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2303 [Define if your assembler supports -relax option.])
2306 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2307 gcc_cv_as_sparc_ua_pcrel, [
2308 gcc_cv_as_sparc_ua_pcrel=unknown
2309 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2310 gcc_cv_as_sparc_ua_pcrel=no
2311 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2312 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2313 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2314 gcc_cv_as_sparc_ua_pcrel=yes
2316 rm -f conftest.s conftest.o conftest
2319 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2320 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2321 [Define if your assembler and linker support unaligned PC relative relocs.])
2324 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2325 gcc_cv_as_sparc_ua_pcrel_hidden, [
2326 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2327 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2328 if test x$gcc_cv_objdump != x; then
2329 gcc_cv_as_sparc_ua_pcrel_hidden=no
2330 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2331 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2332 echo "foo: .skip 4" >> conftest.s
2333 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2334 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2335 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2336 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2337 if $gcc_cv_objdump -R conftest 2> /dev/null \
2338 | grep 'DISP32' > /dev/null 2>&1; then
2341 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2345 rm -f conftest.s conftest.o conftest
2347 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2350 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2351 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2352 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2355 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2356 gcc_cv_as_offsetable_lo10, [
2357 gcc_cv_as_offsetable_lo10=unknown
2358 if test "x$gcc_cv_as" != x; then
2359 # Check if assembler has offsetable %lo()
2360 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2361 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2362 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2364 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2365 > /dev/null 2>&1; then
2366 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2367 gcc_cv_as_offsetable_lo10=no
2369 gcc_cv_as_offsetable_lo10=yes
2372 gcc_cv_as_offsetable_lo10=no
2374 rm -f conftest.s conftest.o conftest1.s conftest1.o
2377 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2378 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2379 [Define if your assembler supports offsetable %lo().])
2385 i[34567]86-*-* | x86_64-*-*)
2387 AC_MSG_CHECKING(assembler instructions)
2388 gcc_cv_as_instructions=
2389 if test $in_tree_gas = yes ; then
2390 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
2391 gcc_cv_as_instructions="filds fists"
2393 elif test x$gcc_cv_as != x; then
2394 set "filds fists" "filds mem; fists mem"
2397 echo "$2" > conftest.s
2398 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2399 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2403 rm -f conftest.s conftest.o
2405 if test x"$gcc_cv_as_instructions" != x; then
2406 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2408 AC_MSG_RESULT($gcc_cv_as_instructions)
2410 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2411 gcc_cv_as_gotoff_in_data=no
2412 if test $in_tree_gas = yes ; then
2413 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2414 gcc_cv_as_gotoff_in_data=yes
2416 elif test x$gcc_cv_as != x; then
2417 cat > conftest.s <<EOF
2424 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2425 gcc_cv_as_gotoff_in_data=yes
2428 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2429 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2430 [Define true if the assembler supports '.long foo@GOTOFF'.])
2431 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2435 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2436 gcc_cv_as_ltoffx_ldxmov_relocs, [
2437 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2438 if test $in_tree_gas = yes ; then
2439 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2440 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2442 elif test x$gcc_cv_as != x; then
2443 cat > conftest.s << 'EOF'
2446 addl r15 = @ltoffx(x#), gp
2448 ld8.mov r16 = [r15], x#
2451 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2452 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2454 gcc_cv_as_ltoffx_ldxmov_relocs=no
2456 rm -f conftest.s conftest.o
2459 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2460 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2461 [Define if your assembler supports ltoffx and ldxmov relocations.])
2466 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2467 gcc_cv_as_dwarf2_debug_line=no
2468 # ??? Not all targets support dwarf2 debug_line, even within a version
2469 # of gas. Moreover, we need to emit a valid instruction to trigger any
2470 # info to the output file. So, as supported targets are added to gas 2.11,
2471 # add some instruction here to (also) show we expect this might work.
2472 # ??? Once 2.11 is released, probably need to add first known working
2473 # version to the per-target configury.
2475 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2476 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2477 | xstormy16*-*-* | cris-*-*)
2487 if test $in_tree_gas = yes ; then
2488 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2489 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2490 && test x"$insn" != x ; then
2491 gcc_cv_as_dwarf2_debug_line="yes"
2494 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2495 echo ' .file 1 "conftest.s"' > conftest.s
2496 echo ' .loc 1 3 0' >> conftest.s
2497 echo " $insn" >> conftest.s
2498 # ??? This fails with non-gnu grep.
2499 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2500 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2501 # The .debug_line file table must be in the exact order that
2502 # we specified the files, since these indices are also used
2503 # by DW_AT_decl_file. Approximate this test by testing if
2504 # the assembler bitches if the same index is assigned twice.
2505 echo ' .file 1 "foo.s"' > conftest.s
2506 echo ' .file 1 "bar.s"' >> conftest.s
2507 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2509 gcc_cv_as_dwarf2_debug_line="no"
2511 gcc_cv_as_dwarf2_debug_line="yes"
2514 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2516 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2517 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2518 [Define if your assembler supports dwarf2 .file/.loc directives,
2519 and preserves file table indices exactly as given.])
2521 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2523 AC_MSG_CHECKING(assembler --gdwarf2 support)
2524 gcc_cv_as_gdwarf2_flag=no
2525 if test $in_tree_gas = yes ; then
2526 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2527 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2528 && test x"$insn" != x ; then
2529 gcc_cv_as_gdwarf2_flag="yes"
2532 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2533 echo '' > conftest.s
2534 # ??? This fails with non-gnu grep.
2535 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2537 gcc_cv_as_gdwarf2_flag="yes"
2539 rm -f conftest.s conftest.o
2541 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2542 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2543 [Define if your assembler supports the --gdwarf2 option.])
2545 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2547 AC_MSG_CHECKING(assembler --gstabs support)
2548 gcc_cv_as_gstabs_flag=no
2549 if test $in_tree_gas = yes ; then
2550 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2551 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2552 && test x"$insn" != x ; then
2553 gcc_cv_as_gstabs_flag="yes"
2556 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2557 echo '' > conftest.s
2558 # ??? This fails with non-gnu grep.
2559 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2560 gcc_cv_as_gstabs_flag="yes"
2561 # The native Solaris 9/Intel assembler doesn't understand --gstabs
2562 # and warns about it, but still exits successfully. So check for
2564 if $gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | \
2565 grep -i warning > /dev/null ; then
2566 gcc_cv_as_gstabs_flag="no"
2569 rm -f conftest.s conftest.o
2571 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2572 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2573 [Define if your assembler supports the --gstabs option.])
2575 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2577 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2578 gcc_cv_ld_ro_rw_mix=unknown
2579 if test $in_tree_ld = yes ; then
2580 if test "$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
2581 gcc_cv_ld_ro_rw_mix=read-write
2583 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2584 echo '.section myfoosect, "a"' > conftest1.s
2585 echo '.section myfoosect, "aw"' > conftest2.s
2586 echo '.byte 1' >> conftest2.s
2587 echo '.section myfoosect, "a"' > conftest3.s
2588 echo '.byte 0' >> conftest3.s
2589 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2590 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2591 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2592 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2593 conftest2.o conftest3.o > /dev/null 2>&1; then
2594 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2595 | sed -e '/myfoosect/!d' -e N`
2596 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2597 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2598 gcc_cv_ld_ro_rw_mix=read-only
2600 gcc_cv_ld_ro_rw_mix=read-write
2605 rm -f conftest.* conftest[123].*
2608 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2609 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2610 [Define if your linker links a mix of read-only
2611 and read-write sections into a read-write section.])
2613 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2615 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2616 gcc_cv_ld_eh_frame_hdr=no
2617 if test $in_tree_ld = yes ; then
2618 if test "$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
2619 gcc_cv_ld_eh_frame_hdr=yes
2621 elif test x$gcc_cv_ld != x; then
2622 # Check if linker supports --eh-frame-hdr option
2623 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2624 gcc_cv_ld_eh_frame_hdr=yes
2627 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2628 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2629 [Define if your linker supports --eh-frame-hdr option.])
2631 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2633 AC_MSG_CHECKING(linker position independent executable support)
2635 if test $in_tree_ld = yes ; then
2636 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2639 elif test x$gcc_cv_ld != x; then
2640 # Check if linker supports -pie option
2641 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2645 if test x"$gcc_cv_ld_pie" = xyes; then
2646 AC_DEFINE(HAVE_LD_PIE, 1,
2647 [Define if your linker supports -pie option.])
2649 AC_MSG_RESULT($gcc_cv_ld_pie)
2651 # Miscellaneous target-specific checks.
2654 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2655 gcc_cv_mips_libgloss_startup=no
2656 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2657 if test "x$exec_prefix" = xNONE; then
2658 if test "x$prefix" = xNONE; then
2659 test_prefix=/usr/local
2664 test_prefix=$exec_prefix
2666 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2668 if grep '^STARTUP' $f > /dev/null 2>&1; then
2669 gcc_cv_mips_libgloss_startup=yes
2673 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2674 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2675 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2677 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2679 AC_MSG_CHECKING(whether the assembler has explicit relocation support)
2680 if test x$gcc_cv_mips_explicit_relocs = x; then
2681 gcc_cv_mips_explicit_relocs=no
2682 if test $in_tree_gas = yes; then
2683 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2684 gcc_cv_mips_explicit_relocs=yes
2686 elif test x$gcc_cv_as != x; then
2687 echo ' lw $4,%gp_rel(foo)($4)' > conftest.s
2688 if $gcc_cv_as conftest.s -o conftest.o > /dev/null 2>&1; then
2689 gcc_cv_mips_explicit_relocs=yes
2691 rm -f conftest.s conftest.o
2694 if test $gcc_cv_mips_explicit_relocs = yes; then
2695 test x$target_cpu_default != x || target_cpu_default=0
2696 target_cpu_default="(${target_cpu_default}|MASK_EXPLICIT_RELOCS)"
2698 AC_MSG_RESULT($gcc_cv_mips_explicit_relocs)
2702 if test x$with_sysroot = x && test x$host = x$target \
2703 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2704 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2707 # Figure out what language subdirectories are present.
2708 # Look if the user specified --enable-languages="..."; if not, use
2709 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2711 # NB: embedded tabs in this IF block -- do not untabify
2712 if test x"${enable_languages+set}" != xset; then
2713 if test x"${LANGUAGES+set}" = xset; then
2714 enable_languages="${LANGUAGES}"
2715 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2718 enable_languages=all
2721 if test x"${enable_languages}" = x \
2722 || test x"${enable_languages}" = xyes;
2724 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2727 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2729 # First scan to see if an enabled language requires some other language.
2730 # We assume that a given config-lang.in will list all the language
2731 # front ends it requires, even if some are required indirectly.
2732 for lang in ${srcdir}/*/config-lang.in ..
2737 # The odd quoting in the next line works around
2738 # an apparent bug in bash 1.12 on linux.
2740 ${srcdir}/[*]/config-lang.in)
2743 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2744 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2745 for other in $this_lang_requires
2747 case ,${enable_languages}, in
2753 enable_languages="$enable_languages,$other"
2762 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2765 for lang in ${srcdir}/*/config-lang.in ..
2769 # The odd quoting in the next line works around
2770 # an apparent bug in bash 1.12 on linux.
2772 ${srcdir}/[*]/config-lang.in) ;;
2774 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2775 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2776 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2777 if test "x$lang_alias" = x
2779 echo "$lang doesn't set \$language." 1>&2
2782 case ${build_by_default},${enable_languages}, in
2783 *,$lang_alias,*) add_this_lang=yes ;;
2784 no,*) add_this_lang=no ;;
2785 *,all,*) add_this_lang=yes ;;
2786 *) add_this_lang=no ;;
2788 found_languages="${found_languages} ${lang_alias}"
2789 if test x"${add_this_lang}" = xyes; then
2791 ${srcdir}/ada/config-lang.in)
2792 if test x$have_gnat = xyes ; then
2793 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2797 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2807 for expected_language in ${expected_languages} ..
2809 if test "${expected_language}" != ..; then
2810 missing_language="${expected_language}"
2811 if test "${expected_language}" = "c" \
2812 || test "${expected_language}" = "all"; then
2815 for found_language in ${found_languages} ..
2817 if test "${found_language}" != ..; then
2818 if test "${expected_language}" = "${found_language}"; then
2823 if test "x${missing_language}" != x; then
2824 missing_languages="${missing_languages} ${missing_language}"
2829 if test "x$missing_languages" != x; then
2831 The following requested languages were not found:${missing_languages}
2832 The following languages were available: c${found_languages}])
2835 # Make gthr-default.h if we have a thread file.
2837 if test $thread_file != single; then
2838 rm -f gthr-default.h
2839 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2840 gthread_flags=-DHAVE_GTHR_DEFAULT
2842 AC_SUBST(gthread_flags)
2844 # Find out what GC implementation we want, or may, use.
2846 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2853 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2858 echo "Using $GGC for garbage collection."
2860 # Use the system's zlib library.
2862 zlibinc="-I\$(srcdir)/../zlib"
2863 AC_ARG_WITH(system-zlib,
2864 [ --with-system-zlib use installed libz],
2871 dnl Very limited version of automake's enable-maintainer-mode
2873 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2874 dnl maintainer-mode is disabled by default
2875 AC_ARG_ENABLE(maintainer-mode,
2876 [ --enable-maintainer-mode
2877 enable make rules and dependencies not useful
2878 (and sometimes confusing) to the casual installer],
2879 maintainer_mode=$enableval,
2882 AC_MSG_RESULT($maintainer_mode)
2884 if test "$maintainer_mode" = "yes"; then
2891 # Make empty files to contain the specs and options for each language.
2892 # Then add #include lines to for a compiler that has specs and/or options.
2898 for subdir in . $subdirs
2900 if test -f $srcdir/$subdir/lang.opt; then
2901 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2903 if test -f $srcdir/$subdir/lang-specs.h; then
2904 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2906 if test -f $srcdir/$subdir/lang-options.h; then
2907 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2909 if test -f $srcdir/$subdir/$subdir-tree.def; then
2910 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2914 # These (without "all_") are set in each config-lang.in.
2915 # `language' must be a single word so is spelled singularly.
2920 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2921 # List of language makefile fragments.
2923 # Files for gengtype
2924 all_gtfiles="$target_gtfiles"
2925 # Files for gengtype with language
2926 all_gtfiles_files_langs=
2927 all_gtfiles_files_files=
2929 # Add the language fragments.
2930 # Languages are added via two mechanisms. Some information must be
2931 # recorded in makefile variables, these are defined in config-lang.in.
2932 # We accumulate them and plug them into the main Makefile.
2933 # The other mechanism is a set of hooks for each of the main targets
2934 # like `clean', `install', etc.
2936 language_fragments="Make-lang"
2937 language_hooks="Make-hooks"
2939 for s in .. $subdirs
2949 . ${srcdir}/$s/config-lang.in
2950 if test "x$language" = x
2952 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2955 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2956 if test -f ${srcdir}/$s/Makefile.in
2957 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2959 all_languages="$all_languages $language"
2960 if test "x$boot_language" = xyes
2962 all_boot_languages="$all_boot_languages $language"
2964 all_compilers="$all_compilers $compilers"
2965 all_stagestuff="$all_stagestuff $stagestuff"
2966 all_outputs="$all_outputs $outputs"
2967 all_gtfiles="$all_gtfiles $gtfiles"
2968 for f in .. $gtfiles
2972 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2973 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2979 # Pick up gtfiles for c
2982 . ${srcdir}/c-config-lang.in
2983 all_gtfiles="$all_gtfiles $gtfiles"
2984 for f in .. $gtfiles
2988 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2989 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2994 for language in .. $all_languages
2996 if test $language != ".."
2998 check_languages="$check_languages check-$language"
3002 # Since we can't use `::' targets, we link each language in
3003 # with a set of hooks, reached indirectly via lang.${target}.
3007 target_list="all.build all.cross start.encap rest.encap tags \
3008 info dvi generated-manpages \
3009 install-normal install-common install-info install-man \
3011 mostlyclean clean distclean extraclean maintainer-clean \
3012 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3013 for t in $target_list
3016 for lang in .. $all_languages
3018 if test $lang != ".."; then
3022 echo "lang.$t: $x" >> Make-hooks
3027 echo "dir ." > .gdbinit
3028 echo "dir ${srcdir}" >> .gdbinit
3029 if test x$gdb_needs_out_file_path = xyes
3031 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3033 if test "x$subdirs" != x; then
3036 echo "dir ${srcdir}/$s" >> .gdbinit
3039 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3041 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3042 # absolute path for gcc_tooldir based on inserting the number of up-directory
3043 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3044 # $(libsubdir)/@(unlibsubdir) based path.
3045 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3046 # make and thus we'd get different behavior depending on where we built the
3048 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3049 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
3051 changequote(<<, >>)dnl
3052 # An explanation of the sed strings:
3053 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3054 # -e 's|/$||' match a trailing forward slash and eliminates it
3055 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3056 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3058 # (*) Note this pattern overwrites the first character of the string
3059 # with a forward slash if one is not already present. This is not a
3060 # problem because the exact names of the sub-directories concerned is
3061 # unimportant, just the number of them matters.
3063 # The practical upshot of these patterns is like this:
3065 # prefix exec_prefix result
3066 # ------ ----------- ------
3068 # /foo/ /foo/bar ../
3069 # /foo /foo/bar/ ../
3070 # /foo/ /foo/bar/ ../
3071 # /foo /foo/bar/ugg ../../
3074 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
3075 changequote([, ])dnl
3077 AC_SUBST(gcc_tooldir)
3080 # Find a directory in which to install a shared libgcc.
3082 AC_ARG_ENABLE(version-specific-runtime-libs,
3083 [ --enable-version-specific-runtime-libs
3084 specify that runtime libraries should be
3085 installed in a compiler-specific directory])
3087 AC_ARG_WITH(slibdir,
3088 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3089 slibdir="$with_slibdir",
3090 if test "${enable_version_specific_runtime_libs+set}" = set; then
3091 slibdir='$(libsubdir)'
3092 elif test "$host" != "$target"; then
3093 slibdir='$(build_tooldir)/lib'
3099 objdir=`${PWDCMD-pwd}`
3102 # Process the language and host/target makefile fragments.
3103 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
3105 # Substitute configuration variables
3108 AC_SUBST(all_boot_languages)
3109 AC_SUBST(all_compilers)
3110 AC_SUBST(all_gtfiles)
3111 AC_SUBST(all_gtfiles_files_langs)
3112 AC_SUBST(all_gtfiles_files_files)
3113 AC_SUBST(all_lang_makefiles)
3114 AC_SUBST(all_languages)
3115 AC_SUBST(all_stagestuff)
3116 AC_SUBST(build_exeext)
3117 AC_SUBST(build_install_headers_dir)
3118 AC_SUBST(build_xm_file_list)
3119 AC_SUBST(build_xm_file)
3120 AC_SUBST(build_xm_defines)
3121 AC_SUBST(check_languages)
3122 AC_SUBST(cc_set_by_configure)
3123 AC_SUBST(quoted_cc_set_by_configure)
3124 AC_SUBST(cpp_install_dir)
3125 AC_SUBST(dep_host_xmake_file)
3126 AC_SUBST(dep_tmake_file)
3127 AC_SUBST(extra_headers_list)
3128 AC_SUBST(extra_objs)
3129 AC_SUBST(extra_parts)
3130 AC_SUBST(extra_passes)
3131 AC_SUBST(extra_programs)
3132 AC_SUBST(float_h_file)
3133 AC_SUBST(gcc_config_arguments)
3134 AC_SUBST(gcc_gxx_include_dir)
3135 AC_SUBST(libstdcxx_incdir)
3136 AC_SUBST(gcc_version)
3137 AC_SUBST(gcc_version_full)
3138 AC_SUBST(gcc_version_trigger)
3139 AC_SUBST(host_exeext)
3140 AC_SUBST(host_extra_gcc_objs)
3141 AC_SUBST(host_xm_file_list)
3142 AC_SUBST(host_xm_file)
3143 AC_SUBST(host_xm_defines)
3144 AC_SUBST(out_host_hook_obj)
3146 AC_SUBST(lang_opt_files)
3147 AC_SUBST(lang_options_files)
3148 AC_SUBST(lang_specs_files)
3149 AC_SUBST(lang_tree_files)
3150 AC_SUBST(local_prefix)
3152 AC_SUBST(objc_boehm_gc)
3154 AC_SUBST(out_object_file)
3155 AC_SUBST(stage_prefix_set_by_configure)
3156 AC_SUBST(quoted_stage_prefix_set_by_configure)
3157 AC_SUBST(symbolic_link)
3158 AC_SUBST(thread_file)
3159 AC_SUBST(tm_file_list)
3161 AC_SUBST(tm_defines)
3162 AC_SUBST(tm_p_file_list)
3165 AC_SUBST(xm_defines)
3166 AC_SUBST(target_alias)
3167 AC_SUBST(c_target_objs)
3168 AC_SUBST(cxx_target_objs)
3169 AC_SUBST(target_cpu_default)
3171 AC_SUBST_FILE(target_overrides)
3172 AC_SUBST_FILE(host_overrides)
3173 AC_SUBST_FILE(language_fragments)
3174 AC_SUBST_FILE(language_hooks)
3176 # Echo that links are built
3177 if test x$host = x$target
3185 if test x$host != x$build
3187 str3=" on a $build system"
3190 if test "x$str2" != x || test "x$str3" != x
3195 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3197 if test "x$str2" != x || test "x$str3" != x
3199 echo " ${str2}${str3}." 1>&2
3202 # Configure the subdirectories
3203 # AC_CONFIG_SUBDIRS($subdirs)
3205 # Create the Makefile
3206 # and configure language subdirectories
3207 AC_OUTPUT($all_outputs,
3209 case x$CONFIG_HEADERS in
3210 xauto-host.h:config.in)
3213 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3214 # bootstrapping and the installation procedure can still use
3215 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3216 # FLAGS_TO_PASS has been modified to solve the problem there.
3217 # This is virtually a duplicate of what happens in configure.lang; we do
3218 # an extra check to make sure this only happens if ln -s can be used.
3219 if test "$symbolic_link" = "ln -s"; then
3220 for d in .. ${subdirs} fixinc ; do
3221 if test $d != ..; then
3222 STARTDIR=`${PWDCMD-pwd}`
3224 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3227 $symbolic_link ../$t $t 2>/dev/null
3233 # Avoid having to add intl to our include paths.
3234 if test -f intl/libintl.h; then
3235 echo creating libintl.h
3236 echo '#include "intl/libintl.h"' >libintl.h
3240 symbolic_link='$symbolic_link'