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 $ac_cv_c___int64 = yes; then
259 AC_COMPILE_CHECK_SIZEOF(__int64)
268 # See if GNAT has been installed
271 if test x$have_gnat != xno ; then
272 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
273 ac_cv_prog_adac_no_long_long,
274 [cat >conftest.adb <<EOF
275 procedure conftest is begin null; end conftest;
277 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
278 ac_cv_prog_adac_no_long_long=yes
280 ac_cv_prog_adac_no_long_long=no
284 ac_cv_prog_adac_no_long_long=yes
287 # ---------------------
288 # Warnings and checking
289 # ---------------------
292 if test $ac_cv_prog_cc_no_long_long = yes && \
293 test $ac_cv_prog_adac_no_long_long = yes ; then
294 strict1_warn="-pedantic -Wno-long-long"
296 AC_SUBST(strict1_warn)
298 # If the native compiler is GCC, we can enable warnings even in stage1.
299 # That's useful for people building cross-compilers, or just running a
302 if test "x$GCC" = "xyes"; then
303 warn_cflags='$(GCC_WARN_CFLAGS)'
305 AC_SUBST(warn_cflags)
307 # Enable -Werror in bootstrap stage2 and later.
308 # Change the default to "no" on release branches.
309 AC_ARG_ENABLE(werror,
310 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
312 if test x$enable_werror = xyes ; then
317 # Enable expensive internal checks
318 AC_ARG_ENABLE(checking,
319 [ --enable-checking[=LIST]
320 enable expensive run-time checks. With LIST,
321 enable only specific categories of checks.
322 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
323 default is misc,tree,gc,rtlflag],
329 ac_gc_always_collect=
330 case "${enableval}" in
331 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
332 ac_rtlflag_checking=1 ;;
334 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
335 set fnord $enableval; shift
340 misc) ac_checking=1 ;;
341 tree) ac_tree_checking=1 ;;
342 rtlflag) ac_rtlflag_checking=1 ;;
343 rtl) ac_rtl_checking=1 ;;
344 gc) ac_gc_checking=1 ;;
345 gcac) ac_gc_always_collect=1 ;;
346 valgrind) ac_checking_valgrind=1 ;;
347 *) AC_MSG_ERROR(unknown check category $check) ;;
353 # Enable some checks by default for development versions of GCC
354 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
356 if test x$ac_checking != x ; then
357 AC_DEFINE(ENABLE_CHECKING, 1,
358 [Define if you want more run-time sanity checks. This one gets a grab
359 bag of miscellaneous but relatively cheap checks.])
360 nocommon_flag=-fno-common
362 AC_SUBST(nocommon_flag)
363 if test x$ac_tree_checking != x ; then
364 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
365 [Define if you want all operations on trees (the basic data
366 structure of the front ends) to be checked for dynamic type safety
367 at runtime. This is moderately expensive.])
369 if test x$ac_rtl_checking != x ; then
370 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
371 [Define if you want all operations on RTL (the basic data structure
372 of the optimizer and back end) to be checked for dynamic type safety
373 at runtime. This is quite expensive.])
375 if test x$ac_rtlflag_checking != x ; then
376 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
377 [Define if you want RTL flag accesses to be checked against the RTL
378 codes that are supported for each access macro. This is relatively
381 if test x$ac_gc_checking != x ; then
382 AC_DEFINE(ENABLE_GC_CHECKING, 1,
383 [Define if you want the garbage collector to do object poisoning and
384 other memory allocation checks. This is quite expensive.])
386 if test x$ac_gc_always_collect != x ; then
387 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
388 [Define if you want the garbage collector to operate in maximally
389 paranoid mode, validating the entire heap and collecting garbage at
390 every opportunity. This is extremely expensive.])
392 valgrind_path_defines=
394 if test x$ac_checking_valgrind != x ; then
395 # It is certainly possible that there's valgrind but no valgrind.h.
396 # GCC relies on making annotations so we must have both.
397 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
399 [#include <memcheck.h>
400 #ifndef VALGRIND_DISCARD
401 #error VALGRIND_DISCARD not defined
403 [gcc_cv_header_memcheck_h=yes],
404 gcc_cv_header_memcheck_h=no)
405 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
406 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
407 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
408 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
409 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
410 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
412 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
413 valgrind_command="$valgrind_path -q"
414 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
415 [Define if you want to run subprograms and generated programs
416 through valgrind (a memory checker). This is extremely expensive.])
417 if test $gcc_cv_header_memcheck_h = yes; then
418 AC_DEFINE(HAVE_MEMCHECK_H, 1,
419 [Define if valgrind's memcheck.h header is installed.])
422 AC_SUBST(valgrind_path_defines)
423 AC_SUBST(valgrind_command)
425 # Enable code coverage collection
426 AC_ARG_ENABLE(coverage,
427 [ --enable-coverage[=LEVEL]
428 enable compiler\'s code coverage collection.
429 Use to measure compiler performance and locate
430 unused parts of the compiler. With LEVEL, specify
431 optimization. Values are opt, noopt,
433 [case "${enableval}" in
435 coverage_flags="-fprofile-arcs -ftest-coverage -O0 -DSELF_COVERAGE=1"
438 coverage_flags="-fprofile-arcs -ftest-coverage -O2 -DSELF_COVERAGE=2"
441 AC_MSG_ERROR(unknown coverage setting $enableval)
445 AC_SUBST(coverage_flags)
447 # -------------------------------
448 # Miscenalleous configure options
449 # -------------------------------
453 [ --with-stabs arrange to use stabs instead of host debug format],
459 [ --with-elf arrange to use ELF instead of host debug format],
463 # Determine whether or not multilibs are enabled.
464 AC_ARG_ENABLE(multilib,
465 [ --enable-multilib enable library support for multiple ABIs],
466 [], [enable_multilib=yes])
467 AC_SUBST(enable_multilib)
469 # Enable __cxa_atexit for C++.
470 AC_ARG_ENABLE(__cxa_atexit,
471 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
474 # Enable Multibyte Characters for C/C++
475 AC_ARG_ENABLE(c-mbchar,
476 [ --enable-c-mbchar enable multibyte characters for C and C++],
477 if test x$enable_c_mbchar != xno; then
478 AC_DEFINE(MULTIBYTE_CHARS, 1,
479 [Define if you want the C and C++ compilers to support multibyte
480 character sets for source code.])
484 # Pass with no value to take the default
485 # Pass with a value to specify a thread package
486 AC_ARG_ENABLE(threads,
487 [ --enable-threads enable thread usage for target GCC
488 --enable-threads=LIB use LIB thread package for target GCC],,
491 enable_threads_flag=$enable_threads
492 # Check if a valid thread package
493 case x${enable_threads_flag} in
496 target_thread_file='single'
500 target_thread_file=''
502 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
503 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
504 target_thread_file=$enable_threads_flag
507 echo "$enable_threads is an unknown thread package" 1>&2
512 AC_ARG_ENABLE(objc-gc,
513 [ --enable-objc-gc enable the use of Boehm's garbage collector with
514 the GNU Objective-C runtime],
515 if test x$enable_objc_gc = xno; then
523 [ --with-dwarf2 force the default debug format to be DWARF 2],
524 dwarf2="$with_dwarf2",
527 AC_ARG_ENABLE(shared,
528 [ --disable-shared don't provide a shared libgcc],
530 case $enable_shared in
534 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
535 for pkg in $enableval; do
536 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
543 ], [enable_shared=yes])
544 AC_SUBST(enable_shared)
547 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
549 case ${with_sysroot} in
550 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
551 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
554 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
555 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
557 if test "x$exec_prefix" = xNONE; then
558 if test "x$prefix" = xNONE; then
559 test_prefix=/usr/local
564 test_prefix=$exec_prefix
566 case ${TARGET_SYSTEM_ROOT} in
567 "${test_prefix}"|"${test_prefix}/"*|\
568 '${exec_prefix}'|'${exec_prefix}/'*)
569 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
570 TARGET_SYSTEM_ROOT_DEFINE="$t"
575 TARGET_SYSTEM_ROOT_DEFINE=
576 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
578 AC_SUBST(TARGET_SYSTEM_ROOT)
579 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
580 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
582 # -------------------------
583 # Checks for other programs
584 # -------------------------
588 # Find some useful tools
595 # See if we have the mktemp command.
596 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
598 # Do we have a single-tree copy of texinfo?
599 if test -f $srcdir/../texinfo/Makefile.in; then
600 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
601 gcc_cv_prog_makeinfo_modern=yes
602 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
604 # See if makeinfo has been installed and is modern enough
605 # that we can use it.
606 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
607 [GNU texinfo.* \([0-9][0-9.]*\)],
611 if test $gcc_cv_prog_makeinfo_modern = no; then
613 *** Makeinfo is missing or too old.
614 *** Info documentation will not be built.])
617 BUILD_INFO=info AC_SUBST(BUILD_INFO)
620 # Is pod2man recent enough to regenerate manpages?
621 AC_MSG_CHECKING([for recent Pod::Man])
622 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
624 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
630 # 'make compare' can be significantly faster, if cmp itself can
631 # skip bytes instead of using tail. The test being performed is
632 # "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
633 # but we need to sink errors and handle broken shells.
634 AC_MSG_CHECKING([for cmp's capabilities])
637 if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
638 if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
639 make_compare_target=slowcompare
641 make_compare_target=gnucompare
644 make_compare_target=slowcompare
647 AC_SUBST(make_compare_target)
648 AC_MSG_RESULT($make_compare_target)
651 dnl Don't use AC_PROG_LEX; we insist on flex.
652 dnl LEXLIB is not useful in gcc.
653 if test -f $srcdir/../flex/skel.c; then
654 FLEX='$(objdir)/../flex/flex'
656 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
660 # The -L switch is so bison can find its skeleton file.
661 if test -f $srcdir/../bison/bison.simple; then
662 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
664 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
667 # --------------------
668 # Checks for C headers
669 # --------------------
671 AC_MSG_CHECKING(for GNU C library)
672 AC_CACHE_VAL(gcc_cv_glibc,
674 [#include <features.h>],[
675 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
676 #error Not a GNU C library system
680 AC_MSG_RESULT($gcc_cv_glibc)
681 if test $gcc_cv_glibc = yes; then
682 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
687 gcc_AC_HEADER_STDBOOL
690 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
691 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
692 sys/resource.h sys/param.h sys/times.h sys/stat.h \
693 direct.h malloc.h langinfo.h ldfcn.h wchar.h)
695 # Check for thread headers.
696 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
697 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
699 # These tests can't be done till we know if we have limits.h.
707 # Stage specific cflags for build.
713 stage1_cflags="-Wa,-J"
719 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
720 # sources; use -no-cpp-precomp to get to GNU cpp.
721 # Apple's GCC has bugs in designated initializer handling, so disable
723 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
726 AC_SUBST(stage1_cflags)
728 # These libraries may be used by collect2.
729 # We may need a special search path to get them linked.
730 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
732 for libs in '' -lld -lmld \
733 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
734 '-L/usr/lib/cmplrs/cc3.11 -lmld'
737 AC_TRY_LINK_FUNC(ldopen,
738 [gcc_cv_collect2_libs="$libs"; break])
741 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
742 case $gcc_cv_collect2_libs in
744 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
746 AC_SUBST(COLLECT2_LIBS)
748 # When building Ada code on Alpha, we need exc_resume which is usually in
749 # -lexc. So test for it.
752 AC_SEARCH_LIBS(exc_resume, exc)
755 AC_SUBST(GNAT_LIBEXC)
757 # Some systems put ldexp and frexp in libm instead of libc; assume
758 # they're both in the same place. jcf-dump needs them.
761 AC_SEARCH_LIBS(ldexp, m)
766 # Use <inttypes.h> only if it exists,
767 # doesn't clash with <sys/types.h>, and declares intmax_t.
768 AC_MSG_CHECKING(for inttypes.h)
769 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
771 [#include <sys/types.h>
772 #include <inttypes.h>],
774 [gcc_cv_header_inttypes_h=yes],
775 gcc_cv_header_inttypes_h=no)])
776 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
777 if test $gcc_cv_header_inttypes_h = yes; then
778 AC_DEFINE(HAVE_INTTYPES_H, 1,
779 [Define if you have a working <inttypes.h> header file.])
782 dnl Disabled until we have a complete test for buggy enum bitfields.
783 dnl gcc_AC_C_ENUM_BF_UNSIGNED
785 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
786 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
787 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
788 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore)
790 if test x$ac_cv_func_mbstowcs = xyes; then
791 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
792 [ AC_TRY_RUN([#include <stdlib.h>
798 gcc_cv_func_mbstowcs_works=yes,
799 gcc_cv_func_mbstowcs_works=no,
800 gcc_cv_func_mbstowcs_works=yes)])
801 if test x$gcc_cv_func_mbstowcs_works = xyes; then
802 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
803 [Define this macro if mbstowcs does not crash when its
804 first argument is NULL.])
808 AC_CHECK_TYPE(ssize_t, int)
810 # Try to determine the array type of the second argument of getgroups
811 # for the target system (int or gid_t).
813 if test "${target}" = "${build}"; then
814 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
817 # This condition may need some tweaking. It should include all
818 # targets where the array type of the second argument of getgroups
819 # is int and the type of gid_t is not equivalent to int.
820 *-*-sunos* | *-*-ultrix*)
821 TARGET_GETGROUPS_T=int
824 TARGET_GETGROUPS_T=gid_t
828 AC_SUBST(TARGET_GETGROUPS_T)
830 gcc_AC_FUNC_PRINTF_PTR
831 gcc_AC_FUNC_MMAP_BLACKLIST
836 *** UWIN may not be used as a host platform because
837 *** linking with posix.dll is not allowed by the GNU GPL])
840 # Under VMS, vfork works very different than on Unix. The standard test
841 # won't work, and it isn't easily adaptable. It makes more sense to
843 ac_cv_func_vfork_works=yes
850 # We will need to find libiberty.h and ansidecl.h
851 saved_CFLAGS="$CFLAGS"
852 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
853 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
854 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
855 fprintf_unlocked strstr errno vasprintf \
856 malloc realloc calloc free basename getopt clock, , ,[
857 #include "ansidecl.h"
858 #include "system.h"])
860 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
861 #include "ansidecl.h"
863 #ifdef HAVE_SYS_RESOURCE_H
864 #include <sys/resource.h>
869 #include "ansidecl.h"
871 #ifdef HAVE_SYS_RESOURCE_H
872 #include <sys/resource.h>
874 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
875 [Define to \`long' if <sys/resource.h> doesn't define.])])
877 gcc_AC_CHECK_DECLS(ldgetname, , ,[
878 #include "ansidecl.h"
885 gcc_AC_CHECK_DECLS(times, , ,[
886 #include "ansidecl.h"
888 #ifdef HAVE_SYS_TIMES_H
889 #include <sys/times.h>
893 # More time-related stuff.
894 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
896 #include "ansidecl.h"
898 #ifdef HAVE_SYS_TIMES_H
899 #include <sys/times.h>
901 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
902 if test $ac_cv_struct_tms = yes; then
903 AC_DEFINE(HAVE_STRUCT_TMS, 1,
904 [Define if <sys/times.h> defines struct tms.])
907 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
908 # revisit after autoconf 2.50.
909 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
911 #include "ansidecl.h"
913 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
914 if test $gcc_cv_type_clock_t = yes; then
915 AC_DEFINE(HAVE_CLOCK_T, 1,
916 [Define if <time.h> defines clock_t.])
919 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
921 #include "ansidecl.h"
924 [if ((uchar *)0) return 0;
925 if (sizeof(uchar)) return 0;],
926 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
927 if test $ac_cv_type_uchar = yes; then
928 AC_DEFINE(HAVE_UCHAR, 1,
929 [Define if <sys/types.h> defines \`uchar'.])
932 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
933 CFLAGS="$saved_CFLAGS"
935 gcc_AC_INITFINI_ARRAY
937 # mkdir takes a single argument on some systems.
938 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
946 # With Setjmp/Longjmp based exception handling.
947 AC_ARG_ENABLE(sjlj-exceptions,
948 [ --enable-sjlj-exceptions
949 arrange to use setjmp/longjmp exception handling],
950 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
951 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
952 [Define 0/1 to force the choice for exception handling model.])])
954 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
955 # Use libunwind based exception handling.
956 AC_ARG_ENABLE(libunwind-exceptions,
957 [ --enable-libunwind-exceptions force use libunwind for exceptions],
958 use_libunwind_exceptions=$enableval,
959 use_libunwind_exceptions=$use_libunwind_default)
960 if test x"$use_libunwind_exceptions" = xyes; then
961 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
962 [Define if gcc should use -lunwind.])
965 # --------------------------------------------------------
966 # Build, host, and target specific configuration fragments
967 # --------------------------------------------------------
972 build_install_headers_dir=install-headers-tar
979 # Decode the host machine, then the target machine.
980 # For the host machine, we save the xm_file variable as host_xm_file;
981 # then we decode the target machine and forget everything else
982 # that came from the host machine.
983 for machine in $build $host $target; do
984 . ${srcdir}/config.gcc
987 extra_objs="${host_extra_objs} ${extra_objs}"
989 # Default the target-machine variables that were not explicitly set.
990 if test x"$tm_file" = x
991 then tm_file=$cpu_type/$cpu_type.h; fi
993 if test x"$extra_headers" = x
994 then extra_headers=; fi
996 if test x$md_file = x
997 then md_file=$cpu_type/$cpu_type.md; fi
999 if test x$out_file = x
1000 then out_file=$cpu_type/$cpu_type.c; fi
1002 if test x"$tmake_file" = x
1003 then tmake_file=$cpu_type/t-$cpu_type
1006 if test x"$dwarf2" = xyes
1007 then tm_file="$tm_file tm-dwarf2.h"
1010 # Say what files are being used for the output code and MD file.
1011 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1012 echo "Using \`$srcdir/config/$md_file' as machine description file."
1014 # If any of the xm_file variables contain nonexistent files, warn
1015 # about them and drop them.
1018 for x in $build_xm_file; do
1019 if test -f $srcdir/config/$x
1021 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1027 for x in $host_xm_file; do
1028 if test -f $srcdir/config/$x
1030 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1036 for x in $xm_file; do
1037 if test -f $srcdir/config/$x
1039 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1045 for f in $tm_file; do
1048 if test $count = ax; then
1049 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1051 echo "Using the following target machine macro files:"
1052 for f in $tm_file; do
1053 echo " $srcdir/config/$f"
1057 if test x$need_64bit_hwint = xyes; then
1058 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1059 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1063 for f in $host_xm_file; do
1066 if test $count = a; then
1068 elif test $count = ax; then
1069 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1071 echo "Using the following host machine macro files:"
1072 for f in $host_xm_file; do
1073 echo " $srcdir/config/$f"
1076 echo "Using ${out_host_hook_obj} for host machine hooks."
1078 if test "$host_xm_file" != "$build_xm_file"; then
1080 for f in $build_xm_file; do
1083 if test $count = a; then
1085 elif test $count = ax; then
1086 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1088 echo "Using the following build machine macro files:"
1089 for f in $build_xm_file; do
1090 echo " $srcdir/config/$f"
1095 if test x$thread_file = x; then
1096 if test x$target_thread_file != x; then
1097 thread_file=$target_thread_file
1099 thread_file='single'
1103 if test x$enable___cxa_atexit = xyes || \
1104 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1105 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1106 [Define if you want to use __cxa_atexit, rather than atexit, to
1107 register C++ destructors for local statics and global objects.
1108 This is essential for fully standards-compliant handling of
1109 destructors, but requires __cxa_atexit in libc.])
1112 # Look for a file containing extra machine modes.
1113 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1114 extra_modes_file='$(srcdir)'/config/${extra_modes}
1115 AC_SUBST(extra_modes_file)
1116 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1117 [Define to the name of a file containing a list of extra machine modes
1118 for this architecture.])
1119 AC_DEFINE(EXTRA_CC_MODES, 1,
1120 [Define if the target architecture needs extra machine modes to represent
1121 the results of comparisons.])
1124 # auto-host.h is the file containing items generated by autoconf and is
1125 # the first file included by config.h.
1126 # If host=build, it is correct to have bconfig include auto-host.h
1127 # as well. If host!=build, we are in error and need to do more
1128 # work to find out the build config parameters.
1129 if test x$host = x$build
1131 build_auto=auto-host.h
1134 # We create a subdir, then run autoconf in the subdir.
1135 # To prevent recursion we set host and build for the new
1136 # invocation of configure to the build for this invocation
1143 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1144 *) realsrcdir=../${srcdir};;
1146 saved_CFLAGS="${CFLAGS}"
1147 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1148 ${realsrcdir}/configure \
1149 --target=$target_alias --host=$build_alias --build=$build_alias
1150 CFLAGS="${saved_CFLAGS}"
1152 # We just finished tests for the build machine, so rename
1153 # the file auto-build.h in the gcc directory.
1154 mv auto-host.h ../auto-build.h
1157 build_auto=auto-build.h
1158 FORBUILD=../${build_subdir}
1162 tm_file="${tm_file} defaults.h"
1163 tm_p_file="${tm_p_file} tm-preds.h"
1164 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1165 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1166 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1167 # put this back in temporarily.
1168 xm_file="ansidecl.h ${xm_file}"
1174 # Get the version trigger filename from the toplevel
1175 if test "${with_gcc_version_trigger+set}" = set; then
1176 gcc_version_trigger=$with_gcc_version_trigger
1178 gcc_version_trigger=${srcdir}/version.c
1181 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1182 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1184 # Compile in configure arguments.
1185 if test -f configargs.h ; then
1186 # Being re-configured.
1187 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1188 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1190 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1192 cat > configargs.h <<EOF
1193 /* Generated automatically. */
1194 static const char configuration_arguments[] = "$gcc_config_arguments";
1195 static const char thread_model[] = "$thread_file";
1197 static const struct {
1198 const char *name, *value;
1199 } configure_default_options[] = $configure_default_options;
1203 # Internationalization
1205 VERSION="$gcc_version"
1209 # Enable NLS support by default
1211 [ --enable-nls use Native Language Support (default)],
1214 # if cross compiling, disable NLS support.
1215 # It's not worth the trouble, at least for now.
1217 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1218 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1224 # Windows32 Registry support for specifying GCC installation paths.
1225 AC_ARG_ENABLE(win32-registry,
1226 [ --disable-win32-registry
1227 disable lookup of installation paths in the
1228 Registry on Windows hosts
1229 --enable-win32-registry enable registry lookup (default)
1230 --enable-win32-registry=KEY
1231 use KEY instead of GCC version as the last portion
1232 of the registry key],,)
1234 win32 | pe | cygwin* | mingw32* | uwin*)
1235 AC_MSG_CHECKING(whether windows registry support is requested)
1236 if test "x$enable_win32_registry" != xno; then
1237 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1238 [Define to 1 if installation paths should be looked up in Windows32
1239 Registry. Ignored on non windows32 hosts.])
1241 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1246 # Check if user specified a different registry key.
1247 case "x${enable_win32_registry}" in
1250 gcc_cv_win32_registry_key="$VERSION"
1253 # no registry lookup.
1254 gcc_cv_win32_registry_key=''
1257 # user-specified key.
1258 gcc_cv_win32_registry_key="$enable_win32_registry"
1262 if test "x$enable_win32_registry" != xno; then
1263 AC_MSG_CHECKING(registry key on windows hosts)
1264 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1265 [Define to be the last portion of registry key on windows hosts.])
1266 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1271 # Get an absolute path to the GCC top-level source directory
1272 holddir=`${PWDCMD-pwd}`
1274 topdir=`${PWDCMD-pwd}`
1277 # Conditionalize the makefile for this host machine.
1278 # Make-host contains the concatenation of all host makefile fragments
1279 # [there can be more than one]. This file is built by configure.frag.
1280 host_overrides=Make-host
1281 dep_host_xmake_file=
1282 for f in .. ${host_xmake_file}
1284 if test -f ${srcdir}/config/$f
1286 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1290 # Conditionalize the makefile for this target machine.
1291 # Make-target contains the concatenation of all host makefile fragments
1292 # [there can be more than one]. This file is built by configure.frag.
1293 target_overrides=Make-target
1295 for f in .. ${tmake_file}
1297 if test -f ${srcdir}/config/$f
1299 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1303 symbolic_link='ln -s'
1305 # If the host doesn't support symlinks, modify CC in
1306 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1307 # Otherwise, we can use "CC=$(CC)".
1309 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1311 cc_set_by_configure="\$(CC)"
1312 quoted_cc_set_by_configure="\$(CC)"
1313 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1314 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1317 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1319 symbolic_link="cp -p"
1323 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1324 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1325 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1326 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1330 out_object_file=`basename $out_file .c`.o
1333 for f in $tm_file; do
1336 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1338 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1339 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1344 for f in $tm_p_file; do
1347 tm_p_file_list="${tm_p_file_list} $f" ;;
1348 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1353 for f in $host_xm_file; do
1356 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1358 host_xm_file_list="${host_xm_file_list} $f" ;;
1360 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1361 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1366 for f in $build_xm_file; do
1369 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1370 auto-build.h | auto-host.h )
1371 build_xm_file_list="${build_xm_file_list} $f" ;;
1373 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1374 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1378 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1379 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1380 CROSS= AC_SUBST(CROSS)
1381 ALL=all.internal AC_SUBST(ALL)
1382 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1383 if test x$host != x$target
1385 CROSS="-DCROSS_COMPILE"
1387 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1388 case "$host","$target" in
1389 i?86-*-*,x86_64-*-* \
1390 | powerpc*-*-*,powerpc64*-*-*)
1391 CROSS="$CROSS -DNATIVE_CROSS" ;;
1393 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1394 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1395 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1398 # If this is a cross-compiler that does not
1399 # have its own set of headers then define
1402 # If this is using newlib, without having the headers available now,
1403 # then define inhibit_libc in LIBGCC2_CFLAGS.
1404 # This prevents libgcc2 from containing any code which requires libc
1407 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1408 test x$with_newlib = xyes ; } &&
1409 test "x$with_headers" = x ; then
1410 inhibit_libc=-Dinhibit_libc
1412 AC_SUBST(inhibit_libc)
1414 # When building gcc with a cross-compiler, we need to adjust things so
1415 # that the generator programs are still built with the native compiler.
1416 # Also, we cannot run fixincludes or fix-header.
1418 # These are the normal (build=host) settings:
1419 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1420 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1421 BUILD_CC='$(CC)' AC_SUBST(BUILD_CC)
1422 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1424 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1425 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1427 # And these apply if build != host.
1428 if test x$build != x$host
1431 BUILD_PREFIX_1=build-
1432 BUILD_CC='$(CC_FOR_BUILD)'
1433 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1435 if test "x$TARGET_SYSTEM_ROOT" = x; then
1441 # Expand extra_headers to include complete path.
1442 # This substitutes for lots of t-* files.
1444 if test "x$extra_headers" = x
1447 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1448 for file in $extra_headers;
1450 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1454 # Add a definition of USE_COLLECT2 if system wants one.
1455 case $use_collect2 in
1456 no) use_collect2= ;;
1459 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1460 xm_defines="${xm_defines} USE_COLLECT2"
1464 # Identify the assembler which will work hand-in-glove with the newly
1465 # built GCC, so that we can examine its features. This is the assembler
1466 # which will be driven by the driver program.
1468 # If build != host, and we aren't building gas in-tree, we identify a
1469 # build->target assembler and hope that it will have the same features
1470 # as the host->target assembler we'll be using.
1471 AC_MSG_CHECKING(what assembler to use)
1474 gcc_cv_gas_major_version=
1475 gcc_cv_gas_minor_version=
1476 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1477 if test -x "$DEFAULT_ASSEMBLER"; then
1478 gcc_cv_as="$DEFAULT_ASSEMBLER"
1479 elif test -x "$AS"; then
1481 elif test -x as$host_exeext; then
1482 # Build using assembler in the current directory.
1483 gcc_cv_as=./as$host_exeext
1484 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1485 && test -f ../gas/Makefile; then
1486 # Single tree build which includes gas.
1488 _gcc_COMPUTE_GAS_VERSION
1489 rm -f as$host_exeext
1490 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1493 if test "x$gcc_cv_as" = x; then
1494 # Search the same directories that the installed compiler will
1495 # search. Else we may find the wrong assembler and lose. If we
1496 # do not find a suitable assembler binary, then try the user's
1499 # Also note we have to check MD_EXEC_PREFIX before checking the
1500 # user's path. Unfortunately, there is no good way to get at the
1501 # value of MD_EXEC_PREFIX here. So we do a brute force search
1502 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1503 # to be fixed as part of the make/configure rewrite too.
1505 if test "x$exec_prefix" = xNONE; then
1506 if test "x$prefix" = xNONE; then
1507 test_prefix=/usr/local
1512 test_prefix=$exec_prefix
1515 # If the loop below does not find an assembler, then use whatever
1516 # one we can find in the users's path.
1518 if test "x$program_prefix" != xNONE; then
1519 gcc_cv_as=${program_prefix}as$host_exeext
1521 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1524 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1525 $test_prefix/lib/gcc-lib/$target_alias \
1526 /usr/lib/gcc/$target_alias/$gcc_version \
1527 /usr/lib/gcc/$target_alias \
1528 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1529 $test_prefix/$target_alias/bin"
1531 if test x$host = x$target; then
1532 test_dirs="$test_dirs \
1537 /bsd43/usr/lib/cmplrs/cc \
1538 /usr/cross64/usr/bin \
1539 /usr/lib/cmplrs/cc \
1540 /sysv/usr/lib/cmplrs/cc \
1541 /svr4/usr/lib/cmplrs/cc \
1545 for dir in $test_dirs; do
1546 if test -x $dir/as$host_exeext; then
1547 gcc_cv_as=$dir/as$host_exeext
1552 case $in_tree_gas in
1554 AC_MSG_RESULT("newly built gas")
1557 AC_MSG_RESULT($gcc_cv_as)
1561 # Identify the linker which will work hand-in-glove with the newly
1562 # built GCC, so that we can examine its features. This is the linker
1563 # which will be driven by the driver program.
1565 # If build != host, and we aren't building gas in-tree, we identify a
1566 # build->target linker and hope that it will have the same features
1567 # as the host->target linker we'll be using.
1568 AC_MSG_CHECKING(what linker to use)
1571 gcc_cv_gld_major_version=
1572 gcc_cv_gld_minor_version=
1573 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1574 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1575 if test -x "$DEFAULT_LINKER"; then
1576 gcc_cv_ld="$DEFAULT_LINKER"
1577 elif test -x "$LD"; then
1579 elif test -x collect-ld$host_exeext; then
1580 # Build using linker in the current directory.
1581 gcc_cv_ld=./collect-ld$host_exeext
1582 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1583 && test -f ../ld/Makefile; then
1584 # Single tree build which includes ld.
1586 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
1589 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1591 if test x$gcc_cv_gld_version != x; then
1596 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1597 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1599 rm -f collect-ld$host_exeext
1600 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1604 if test "x$gcc_cv_ld" = x; then
1605 # Search the same directories that the installed compiler will
1606 # search. Else we may find the wrong linker and lose. If we
1607 # do not find a suitable linker binary, then try the user's
1610 # Also note we have to check MD_EXEC_PREFIX before checking the
1611 # user's path. Unfortunately, there is no good way to get at the
1612 # value of MD_EXEC_PREFIX here. So we do a brute force search
1613 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1614 # to be fixed as part of the make/configure rewrite too.
1616 if test "x$exec_prefix" = xNONE; then
1617 if test "x$prefix" = xNONE; then
1618 test_prefix=/usr/local
1623 test_prefix=$exec_prefix
1626 # If the loop below does not find an linker, then use whatever
1627 # one we can find in the users's path.
1629 if test "x$program_prefix" != xNONE; then
1630 gcc_cv_ld=${program_prefix}ld$host_exeext
1632 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1635 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1636 $test_prefix/lib/gcc-lib/$target_alias \
1637 /usr/lib/gcc/$target_alias/$gcc_version \
1638 /usr/lib/gcc/$target_alias \
1639 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1640 $test_prefix/$target_alias/bin"
1642 if test x$host = x$target; then
1643 test_dirs="$test_dirs \
1648 /bsd43/usr/lib/cmplrs/cc \
1649 /usr/cross64/usr/bin \
1650 /usr/lib/cmplrs/cc \
1651 /sysv/usr/lib/cmplrs/cc \
1652 /svr4/usr/lib/cmplrs/cc \
1656 for dir in $test_dirs; do
1657 if test -x $dir/ld$host_exeext; then
1658 gcc_cv_ld=$dir/ld$host_exeext
1665 AC_MSG_RESULT("newly built ld")
1668 AC_MSG_RESULT($gcc_cv_ld)
1672 # Figure out what nm we will be using.
1673 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1674 AC_MSG_CHECKING(what nm to use)
1676 if test -x nm$host_exeext; then
1677 gcc_cv_nm=./nm$host_exeext
1678 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1679 && test -f ../binutils/Makefile; then
1680 # Single tree build which includes binutils.
1682 gcc_cv_nm=./nm$host_exeext
1683 rm -f nm$host_exeext
1684 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1685 elif test "x$program_prefix" != xNONE; then
1686 gcc_cv_nm=${program_prefix}nm$host_exeext
1688 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1691 yes) AC_MSG_RESULT("newly built nm") ;;
1692 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1695 # Figure out what objdump we will be using.
1696 AC_MSG_CHECKING(what objdump to use)
1698 if test -x objdump$host_exeext; then
1699 gcc_cv_objdump=./objdump$host_exeext
1700 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1701 && test -f ../binutils/Makefile; then
1702 # Single tree build which includes binutils.
1704 gcc_cv_objdump=./objdump$host_exeext
1705 rm -f objdump$host_exeext
1706 $symbolic_link ../binutils/objdump$host_exeext \
1707 objdump$host_exeext 2>/dev/null
1708 elif test "x$program_prefix" != xNONE; then
1709 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1711 gcc_cv_objdump=`echo objdump | \
1712 sed ${program_transform_name}`$host_exeext
1714 case $in_tree_objdump in
1715 yes) AC_MSG_RESULT("newly built objdump") ;;
1716 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1719 # Figure out what assembler alignment features are present.
1720 AC_MSG_CHECKING(assembler alignment features)
1721 gcc_cv_as_alignment_features=none
1722 if test $in_tree_gas = yes; then
1723 # Gas version 2.6 and later support for .balign and .p2align.
1724 gcc_GAS_VERSION_GTE_IFELSE(2,6,0,[
1725 gcc_cv_as_alignment_features=".balign and .p2align"
1726 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1728 # Gas version 2.8 and later support specifying the maximum
1729 # bytes to skip when using .p2align.
1730 gcc_GAS_VERSION_GTE_IFELSE(2,8,0,[
1731 gcc_cv_as_alignment_features=".p2align including maximum skip"
1732 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1734 elif test x$gcc_cv_as != x; then
1735 # Check if we have .balign and .p2align
1736 echo ".balign 4" > conftest.s
1737 echo ".p2align 2" >> conftest.s
1738 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1739 gcc_cv_as_alignment_features=".balign and .p2align"
1740 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1742 rm -f conftest.s conftest.o
1743 # Check if specifying the maximum bytes to skip when
1744 # using .p2align is supported.
1745 echo ".p2align 4,,7" > conftest.s
1746 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1747 gcc_cv_as_alignment_features=".p2align including maximum skip"
1748 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1750 rm -f conftest.s conftest.o
1752 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1754 AC_MSG_CHECKING(assembler subsection support)
1755 gcc_cv_as_subsections=no
1756 if test $in_tree_gas = yes ; then
1757 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
1758 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1759 gcc_cv_as_subsections="working .subsection -1"
1762 elif test x$gcc_cv_as != x; then
1763 # Check if we have .subsection
1764 echo ".subsection 1" > conftest.s
1765 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1766 gcc_cv_as_subsections=".subsection"
1767 if test x$gcc_cv_nm != x; then
1768 cat > conftest.s <<EOF
1769 conftest_label1: .word 0
1771 conftest_label2: .word 0
1774 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1775 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1776 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1777 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1780 gcc_cv_as_subsections="working .subsection -1"
1785 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1787 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1788 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1789 [Define if your assembler supports .subsection and .subsection -1 starts
1790 emitting at the beginning of your section.])
1792 AC_MSG_RESULT($gcc_cv_as_subsections)
1794 AC_MSG_CHECKING(assembler weak support)
1796 if test $in_tree_gas = yes ; then
1797 gcc_GAS_VERSION_GTE_IFELSE(2,2,0,[
1798 gcc_cv_as_weak="yes"
1800 elif test x$gcc_cv_as != x; then
1801 # Check if we have .weak
1802 echo " .weak foobar" > conftest.s
1803 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1804 gcc_cv_as_weak="yes"
1806 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1808 if test x"$gcc_cv_as_weak" = xyes; then
1809 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1811 AC_MSG_RESULT($gcc_cv_as_weak)
1813 AC_MSG_CHECKING(assembler hidden support)
1815 if test $in_tree_gas = yes ; then
1816 gcc_GAS_VERSION_GTE_IFELSE(2,12,1,[
1817 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1818 gcc_cv_as_hidden="yes"
1821 elif test x$gcc_cv_as != x; then
1822 # Check if we have .hidden
1823 echo " .hidden foobar" > conftest.s
1824 echo "foobar:" >> conftest.s
1825 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1826 gcc_cv_as_hidden="yes"
1828 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1830 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1831 # This is irritatingly difficult to feature test for. Look for
1832 # the date string after the version number.
1833 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1834 if echo "$ld_ver" | grep GNU > /dev/null; then
1836 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'`
1837 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1838 if test 0"$ld_date" -lt 20020404; then
1839 if test -n "$ld_date"; then
1840 # If there was date string, but was earlier than 2002-04-04, fail
1841 gcc_cv_as_hidden="no"
1842 elif test -z "$ld_vers"; then
1843 # If there was no date string nor ld version number, something is wrong
1844 gcc_cv_as_hidden="no"
1846 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1847 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1848 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1849 test -z "$ld_vers_patch" && ld_vers_patch=0
1850 if test "$ld_vers_major" -lt 2; then
1851 gcc_cv_as_hidden="no"
1852 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1853 gcc_cv_as_hidden="no"
1854 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1855 -a "$ld_vers_patch" -eq 0; then
1856 gcc_cv_as_hidden="no"
1865 if test x"$gnu_ld_flag" = x"no"; then
1866 # Even if using gas with .hidden support, the resulting object files
1867 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1868 # N64 linkers, the problem is that the linker refuses to accept
1869 # -call_shared (passed by default to the linker) and -r (used to
1870 # link the object file generated without .hidden directives with
1871 # one that hides symbols), so we also lose.
1876 if test x"$gcc_cv_as_hidden" = xyes; then
1877 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1878 [Define if your assembler supports .hidden.])
1880 AC_MSG_RESULT($gcc_cv_as_hidden)
1881 libgcc_visibility=$gcc_cv_as_hidden
1882 AC_SUBST(libgcc_visibility)
1884 AC_MSG_CHECKING(assembler leb128 support)
1886 if test $in_tree_gas = yes ; then
1887 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
1888 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1889 gcc_cv_as_leb128="yes"
1892 elif test x$gcc_cv_as != x; then
1893 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1894 cat > conftest.s <<EOF
1902 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1903 gcc_cv_as_leb128="yes"
1905 # GAS versions before 2.11 do not support uleb128,
1906 # despite appearing to.
1907 # ??? There exists an elf-specific test that will crash
1908 # the assembler. Perhaps it's better to figure out whether
1909 # arbitrary sections are supported and try the test.
1910 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1911 if echo "$as_ver" | grep GNU > /dev/null; then
1913 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1914 as_major=`echo $as_ver | sed 's/\..*//'`
1915 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1917 if test $as_major -eq 2 -a $as_minor -lt 11; then
1918 gcc_cv_as_leb128="no"
1922 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1924 if test x"$gcc_cv_as_leb128" = xyes; then
1925 AC_DEFINE(HAVE_AS_LEB128, 1,
1926 [Define if your assembler supports .uleb128.])
1928 AC_MSG_RESULT($gcc_cv_as_leb128)
1930 AC_MSG_CHECKING(assembler eh_frame optimization)
1931 gcc_cv_as_eh_frame=no
1932 if test $in_tree_gas = yes ; then
1933 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1934 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1935 gcc_cv_as_eh_frame="yes"
1938 elif test x$gcc_cv_as != x; then
1939 # Check if this is GAS.
1940 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1941 rm -f a.out 2> /dev/null
1942 if echo "$as_ver" | grep GNU > /dev/null; then
1943 # Versions up to and including 2.11.0 may mis-optimize
1944 # .eh_frame data. Try something.
1945 cat > conftest.s <<EOF
1952 .section .eh_frame,"aw",@progbits
1954 .4byte .LECIE1-.LSCIE1
1968 .4byte .LEFDE1-.LASFDE1
1970 .4byte .LASFDE1-__FRAME_BEGIN__
1979 cat > conftest.lit <<EOF
1980 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1981 0010 01000000 12000000 18000000 00000000 ................
1982 0020 08000000 04080000 0044 .........D
1984 cat > conftest.big <<EOF
1985 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1986 0010 00000001 00000012 00000018 00000000 ................
1987 0020 00000008 04000000 0844 .........D
1989 # If the assembler didn't choke, and we can objdump,
1990 # and we got the correct data, then succeed.
1991 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1992 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1993 | tail -3 > conftest.got \
1994 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1995 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1997 gcc_cv_as_eh_frame="yes"
1999 gcc_cv_as_eh_frame="bad"
2000 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
2001 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2002 [Define if your assembler mis-optimizes .eh_frame data.])
2008 AC_MSG_RESULT($gcc_cv_as_eh_frame)
2010 AC_MSG_CHECKING(assembler section merging support)
2011 gcc_cv_as_shf_merge=no
2012 if test $in_tree_gas = yes ; then
2013 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2014 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
2015 gcc_cv_as_shf_merge=yes
2018 elif test x$gcc_cv_as != x; then
2019 # Check if we support SHF_MERGE sections
2020 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
2021 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
2022 gcc_cv_as_shf_merge=yes
2024 rm -f conftest.s conftest.o
2026 if test x"$gcc_cv_as_shf_merge" = xyes; then
2027 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
2028 [Define if your assembler supports marking sections with SHF_MERGE flag.])
2030 AC_MSG_RESULT($gcc_cv_as_shf_merge)
2032 AC_MSG_CHECKING(assembler thread-local storage support)
2042 .section ".tdata","awT",@progbits
2045 ldq $27,__tls_get_addr($29) !literal!1
2046 lda $16,foo($29) !tlsgd!1
2047 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2048 ldq $27,__tls_get_addr($29) !literal!2
2049 lda $16,foo($29) !tlsldm!2
2050 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2051 ldq $1,foo($29) !gotdtprel
2052 ldah $2,foo($29) !dtprelhi
2053 lda $3,foo($2) !dtprello
2054 lda $4,foo($29) !dtprel
2055 ldq $1,foo($29) !gottprel
2056 ldah $2,foo($29) !tprelhi
2057 lda $3,foo($2) !tprello
2058 lda $4,foo($29) !tprel'
2065 .section ".tdata","awT",@progbits
2069 leal foo@TLSGD(,%ebx,1), %eax
2070 leal foo@TLSLDM(%ebx), %eax
2071 leal foo@DTPOFF(%eax), %edx
2072 movl foo@GOTTPOFF(%ebx), %eax
2073 subl foo@GOTTPOFF(%ebx), %eax
2074 addl foo@GOTNTPOFF(%ebx), %eax
2075 movl foo@INDNTPOFF, %eax
2076 movl $foo@TPOFF, %eax
2077 subl $foo@TPOFF, %eax
2078 leal foo@NTPOFF(%ecx), %eax'
2084 .section ".tdata","awT",@progbits
2088 leaq foo@TLSGD(%rip), %rdi
2089 leaq foo@TLSLD(%rip), %rdi
2090 leaq foo@DTPOFF(%rax), %rdx
2091 movq foo@GOTTPOFF(%rip), %rax
2092 movq $foo@TPOFF, %rax'
2098 .section ".tdata","awT",@progbits
2101 addl r16 = @ltoff(@dtpmod(foo#)), gp
2102 addl r17 = @ltoff(@dtprel(foo#)), gp
2103 addl r18 = @ltoff(@tprel(foo#)), gp
2104 addl r19 = @dtprel(foo#), gp
2105 adds r21 = @dtprel(foo#), r13
2106 movl r23 = @dtprel(foo#)
2107 addl r20 = @tprel(foo#), gp
2108 adds r22 = @tprel(foo#), r13
2109 movl r24 = @tprel(foo#)'
2115 .section ".tdata","awT",@progbits
2123 addi 3,31,ld0@got@tlsgd
2125 addi 3,31,x1@got@tlsld
2128 addis 9,3,x2@dtprel@ha
2129 addi 9,9,x2@dtprel@l
2130 lwz 9,x3@got@tprel(31)
2133 addis 9,2,x2@tprel@ha
2134 addi 9,9,x2@tprel@l'
2141 .section ".tdata","awT",@progbits
2149 addi 3,2,ld0@got@tlsgd
2155 addi 3,2,x1@got@tlsld
2161 addis 9,3,x2@dtprel@ha
2162 addi 9,9,x2@dtprel@l
2165 ld 9,x3@got@dtprel(2)
2175 .section ".tdata","awT",@progbits
2184 l %r1,foo@GOTNTPOFF(%r12)
2185 l %r1,0(%r1):tls_load:foo
2186 bas %r14,0(%r1,%r13):tls_gdcall:foo
2187 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2194 .section ".tdata","awT",@progbits
2202 lg %r1,foo@GOTNTPOFF(%r12)
2203 larl %r1,foo@INDNTPOFF
2204 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2205 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2208 tls_as_opt="-m64 -Aesame"
2211 if test -z "$tls_first_major"; then
2213 elif test $in_tree_gas = yes ; then
2214 gcc_GAS_VERSION_GTE_IFELSE($tls_first_major,$tls_first_minor,0,[
2217 elif test x$gcc_cv_as != x; then
2218 echo "$conftest_s" > conftest.s
2219 if $gcc_cv_as $tls_as_opt --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2223 rm -f conftest.s conftest.o
2225 if test "$gcc_cv_as_tls" = yes; then
2226 AC_DEFINE(HAVE_AS_TLS, 1,
2227 [Define if your assembler supports thread-local storage.])
2229 AC_MSG_RESULT($gcc_cv_as_tls)
2232 # All TARGET_ABI_OSF targets.
2233 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2234 AC_CACHE_CHECK([assembler supports explicit relocations],
2235 gcc_cv_as_explicit_relocs, [
2236 gcc_cv_as_explicit_relocs=unknown
2237 if test $in_tree_gas = yes ; then
2238 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2239 gcc_cv_as_explicit_relocs=yes
2241 elif test x$gcc_cv_as != x; then
2242 cat > conftest.s << 'EOF'
2245 extbl $3, $2, $3 !lituse_bytoff!1
2246 ldq $2, a($29) !literal!1
2247 ldq $4, b($29) !literal!2
2248 ldq_u $3, 0($2) !lituse_base!1
2249 ldq $27, f($29) !literal!5
2250 jsr $26, ($27), f !lituse_jsr!5
2251 ldah $29, 0($26) !gpdisp!3
2252 lda $0, c($29) !gprel
2253 ldah $1, d($29) !gprelhigh
2254 lda $1, d($1) !gprellow
2255 lda $29, 0($29) !gpdisp!3
2257 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2258 gcc_cv_as_explicit_relocs=yes
2260 gcc_cv_as_explicit_relocs=no
2262 rm -f conftest.s conftest.o
2265 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2266 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2267 [Define if your assembler supports explicit relocations.])
2271 AC_CACHE_CHECK([assembler .register pseudo-op support],
2272 gcc_cv_as_register_pseudo_op, [
2273 gcc_cv_as_register_pseudo_op=unknown
2274 if test x$gcc_cv_as != x; then
2275 # Check if we have .register
2276 echo ".register %g2, #scratch" > conftest.s
2277 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2278 gcc_cv_as_register_pseudo_op=yes
2280 gcc_cv_as_register_pseudo_op=no
2282 rm -f conftest.s conftest.o
2285 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2286 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2287 [Define if your assembler supports .register.])
2290 AC_CACHE_CHECK([assembler supports -relax],
2291 gcc_cv_as_relax_opt, [
2292 gcc_cv_as_relax_opt=unknown
2293 if test x$gcc_cv_as != x; then
2294 # Check if gas supports -relax
2295 echo ".text" > conftest.s
2296 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2297 gcc_cv_as_relax_opt=yes
2299 gcc_cv_as_relax_opt=no
2301 rm -f conftest.s conftest.o
2304 if test "x$gcc_cv_as_relax_opt" = xyes; then
2305 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2306 [Define if your assembler supports -relax option.])
2309 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2310 gcc_cv_as_sparc_ua_pcrel, [
2311 gcc_cv_as_sparc_ua_pcrel=unknown
2312 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2313 gcc_cv_as_sparc_ua_pcrel=no
2314 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2315 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2316 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2317 gcc_cv_as_sparc_ua_pcrel=yes
2319 rm -f conftest.s conftest.o conftest
2322 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2323 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2324 [Define if your assembler and linker support unaligned PC relative relocs.])
2327 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2328 gcc_cv_as_sparc_ua_pcrel_hidden, [
2329 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2330 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2331 if test x$gcc_cv_objdump != x; then
2332 gcc_cv_as_sparc_ua_pcrel_hidden=no
2333 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2334 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2335 echo "foo: .skip 4" >> conftest.s
2336 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2337 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2338 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2339 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2340 if $gcc_cv_objdump -R conftest 2> /dev/null \
2341 | grep 'DISP32' > /dev/null 2>&1; then
2344 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2348 rm -f conftest.s conftest.o conftest
2350 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2353 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2354 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2355 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2358 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2359 gcc_cv_as_offsetable_lo10, [
2360 gcc_cv_as_offsetable_lo10=unknown
2361 if test "x$gcc_cv_as" != x; then
2362 # Check if assembler has offsetable %lo()
2363 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2364 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2365 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2367 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2368 > /dev/null 2>&1; then
2369 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2370 gcc_cv_as_offsetable_lo10=no
2372 gcc_cv_as_offsetable_lo10=yes
2375 gcc_cv_as_offsetable_lo10=no
2377 rm -f conftest.s conftest.o conftest1.s conftest1.o
2380 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2381 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2382 [Define if your assembler supports offsetable %lo().])
2388 i[34567]86-*-* | x86_64-*-*)
2390 AC_MSG_CHECKING(assembler instructions)
2391 gcc_cv_as_instructions=
2392 if test $in_tree_gas = yes ; then
2393 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
2394 gcc_cv_as_instructions="filds fists"
2396 elif test x$gcc_cv_as != x; then
2397 set "filds fists" "filds mem; fists mem"
2400 echo "$2" > conftest.s
2401 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2402 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2406 rm -f conftest.s conftest.o
2408 if test x"$gcc_cv_as_instructions" != x; then
2409 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2411 AC_MSG_RESULT($gcc_cv_as_instructions)
2413 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2414 gcc_cv_as_gotoff_in_data=no
2415 if test $in_tree_gas = yes ; then
2416 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2417 gcc_cv_as_gotoff_in_data=yes
2419 elif test x$gcc_cv_as != x; then
2420 cat > conftest.s <<EOF
2427 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2428 gcc_cv_as_gotoff_in_data=yes
2431 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2432 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2433 [Define true if the assembler supports '.long foo@GOTOFF'.])
2434 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2438 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2439 gcc_cv_as_ltoffx_ldxmov_relocs, [
2440 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2441 if test $in_tree_gas = yes ; then
2442 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2443 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2445 elif test x$gcc_cv_as != x; then
2446 cat > conftest.s << 'EOF'
2449 addl r15 = @ltoffx(x#), gp
2451 ld8.mov r16 = [r15], x#
2454 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2455 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2457 gcc_cv_as_ltoffx_ldxmov_relocs=no
2459 rm -f conftest.s conftest.o
2462 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2463 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2464 [Define if your assembler supports ltoffx and ldxmov relocations.])
2469 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2470 gcc_cv_as_dwarf2_debug_line=no
2471 # ??? Not all targets support dwarf2 debug_line, even within a version
2472 # of gas. Moreover, we need to emit a valid instruction to trigger any
2473 # info to the output file. So, as supported targets are added to gas 2.11,
2474 # add some instruction here to (also) show we expect this might work.
2475 # ??? Once 2.11 is released, probably need to add first known working
2476 # version to the per-target configury.
2478 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2479 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2480 | xstormy16*-*-* | cris-*-*)
2490 if test $in_tree_gas = yes ; then
2491 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2492 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2493 && test x"$insn" != x ; then
2494 gcc_cv_as_dwarf2_debug_line="yes"
2497 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2498 echo ' .file 1 "conftest.s"' > conftest.s
2499 echo ' .loc 1 3 0' >> conftest.s
2500 echo " $insn" >> conftest.s
2501 # ??? This fails with non-gnu grep.
2502 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2503 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2504 # The .debug_line file table must be in the exact order that
2505 # we specified the files, since these indices are also used
2506 # by DW_AT_decl_file. Approximate this test by testing if
2507 # the assembler bitches if the same index is assigned twice.
2508 echo ' .file 1 "foo.s"' > conftest.s
2509 echo ' .file 1 "bar.s"' >> conftest.s
2510 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2512 gcc_cv_as_dwarf2_debug_line="no"
2514 gcc_cv_as_dwarf2_debug_line="yes"
2517 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2519 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2520 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2521 [Define if your assembler supports dwarf2 .file/.loc directives,
2522 and preserves file table indices exactly as given.])
2524 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2526 AC_MSG_CHECKING(assembler --gdwarf2 support)
2527 gcc_cv_as_gdwarf2_flag=no
2528 if test $in_tree_gas = yes ; then
2529 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2530 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2531 && test x"$insn" != x ; then
2532 gcc_cv_as_gdwarf2_flag="yes"
2535 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2536 echo '' > conftest.s
2537 # ??? This fails with non-gnu grep.
2538 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2540 gcc_cv_as_gdwarf2_flag="yes"
2542 rm -f conftest.s conftest.o
2544 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2545 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2546 [Define if your assembler supports the --gdwarf2 option.])
2548 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2550 AC_MSG_CHECKING(assembler --gstabs support)
2551 gcc_cv_as_gstabs_flag=no
2552 if test $in_tree_gas = yes ; then
2553 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2554 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2555 && test x"$insn" != x ; then
2556 gcc_cv_as_gstabs_flag="yes"
2559 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2560 echo '' > conftest.s
2561 # ??? This fails with non-gnu grep.
2562 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2563 gcc_cv_as_gstabs_flag="yes"
2565 rm -f conftest.s conftest.o
2567 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2568 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2569 [Define if your assembler supports the --gstabs option.])
2571 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2573 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2574 gcc_cv_ld_ro_rw_mix=unknown
2575 if test $in_tree_ld = yes ; then
2576 if test "$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
2577 gcc_cv_ld_ro_rw_mix=read-write
2579 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2580 echo '.section myfoosect, "a"' > conftest1.s
2581 echo '.section myfoosect, "aw"' > conftest2.s
2582 echo '.byte 1' >> conftest2.s
2583 echo '.section myfoosect, "a"' > conftest3.s
2584 echo '.byte 0' >> conftest3.s
2585 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2586 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2587 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2588 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2589 conftest2.o conftest3.o > /dev/null 2>&1; then
2590 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2591 | sed -e '/myfoosect/!d' -e N`
2592 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2593 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2594 gcc_cv_ld_ro_rw_mix=read-only
2596 gcc_cv_ld_ro_rw_mix=read-write
2601 rm -f conftest.* conftest[123].*
2604 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2605 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2606 [Define if your linker links a mix of read-only
2607 and read-write sections into a read-write section.])
2609 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2611 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2612 gcc_cv_ld_eh_frame_hdr=no
2613 if test $in_tree_ld = yes ; then
2614 if test "$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
2615 gcc_cv_ld_eh_frame_hdr=yes
2617 elif test x$gcc_cv_ld != x; then
2618 # Check if linker supports --eh-frame-hdr option
2619 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2620 gcc_cv_ld_eh_frame_hdr=yes
2623 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2624 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2625 [Define if your linker supports --eh-frame-hdr option.])
2627 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2629 AC_MSG_CHECKING(linker position independent executable support)
2631 if test $in_tree_ld = yes ; then
2632 if test "$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
2635 elif test x$gcc_cv_ld != x; then
2636 # Check if linker supports -pie option
2637 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2641 if test x"$gcc_cv_ld_pie" = xyes; then
2642 AC_DEFINE(HAVE_LD_PIE, 1,
2643 [Define if your linker supports -pie option.])
2645 AC_MSG_RESULT($gcc_cv_ld_pie)
2647 # Miscellaneous target-specific checks.
2650 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2651 gcc_cv_mips_libgloss_startup=no
2652 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2653 if test "x$exec_prefix" = xNONE; then
2654 if test "x$prefix" = xNONE; then
2655 test_prefix=/usr/local
2660 test_prefix=$exec_prefix
2662 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2664 if grep '^STARTUP' $f > /dev/null 2>&1; then
2665 gcc_cv_mips_libgloss_startup=yes
2669 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2670 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2671 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2673 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2675 AC_MSG_CHECKING(whether the assembler has explicit relocation support)
2676 if test x$gcc_cv_mips_explicit_relocs = x; then
2677 gcc_cv_mips_explicit_relocs=no
2678 if test $in_tree_gas = yes; then
2679 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2680 gcc_cv_mips_explicit_relocs=yes
2682 elif test x$gcc_cv_as != x; then
2683 echo ' lw $4,%gp_rel(foo)($4)' > conftest.s
2684 if $gcc_cv_as conftest.s -o conftest.o > /dev/null 2>&1; then
2685 gcc_cv_mips_explicit_relocs=yes
2687 rm -f conftest.s conftest.o
2690 if test $gcc_cv_mips_explicit_relocs = yes; then
2691 test x$target_cpu_default != x || target_cpu_default=0
2692 target_cpu_default="(${target_cpu_default}|MASK_EXPLICIT_RELOCS)"
2694 AC_MSG_RESULT($gcc_cv_mips_explicit_relocs)
2698 if test x$with_sysroot = x && test x$host = x$target \
2699 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2700 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2703 # Figure out what language subdirectories are present.
2704 # Look if the user specified --enable-languages="..."; if not, use
2705 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2707 # NB: embedded tabs in this IF block -- do not untabify
2708 if test x"${enable_languages+set}" != xset; then
2709 if test x"${LANGUAGES+set}" = xset; then
2710 enable_languages="${LANGUAGES}"
2711 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2714 enable_languages=all
2717 if test x"${enable_languages}" = x \
2718 || test x"${enable_languages}" = xyes;
2720 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2723 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2725 # First scan to see if an enabled language requires some other language.
2726 # We assume that a given config-lang.in will list all the language
2727 # front ends it requires, even if some are required indirectly.
2728 for lang in ${srcdir}/*/config-lang.in ..
2733 # The odd quoting in the next line works around
2734 # an apparent bug in bash 1.12 on linux.
2736 ${srcdir}/[*]/config-lang.in)
2739 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2740 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2741 for other in $this_lang_requires
2743 case ,${enable_languages}, in
2749 enable_languages="$enable_languages,$other"
2758 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2761 for lang in ${srcdir}/*/config-lang.in ..
2765 # The odd quoting in the next line works around
2766 # an apparent bug in bash 1.12 on linux.
2768 ${srcdir}/[*]/config-lang.in) ;;
2770 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2771 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2772 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2773 if test "x$lang_alias" = x
2775 echo "$lang doesn't set \$language." 1>&2
2778 case ${build_by_default},${enable_languages}, in
2779 *,$lang_alias,*) add_this_lang=yes ;;
2780 no,*) add_this_lang=no ;;
2781 *,all,*) add_this_lang=yes ;;
2782 *) add_this_lang=no ;;
2784 found_languages="${found_languages} ${lang_alias}"
2785 if test x"${add_this_lang}" = xyes; then
2787 ${srcdir}/ada/config-lang.in)
2788 if test x$have_gnat = xyes ; then
2789 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2793 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2803 for expected_language in ${expected_languages} ..
2805 if test "${expected_language}" != ..; then
2806 missing_language="${expected_language}"
2807 if test "${expected_language}" = "c" \
2808 || test "${expected_language}" = "all"; then
2811 for found_language in ${found_languages} ..
2813 if test "${found_language}" != ..; then
2814 if test "${expected_language}" = "${found_language}"; then
2819 if test "x${missing_language}" != x; then
2820 missing_languages="${missing_languages} ${missing_language}"
2825 if test "x$missing_languages" != x; then
2827 The following requested languages were not found:${missing_languages}
2828 The following languages were available: c${found_languages}])
2831 # Make gthr-default.h if we have a thread file.
2833 if test $thread_file != single; then
2834 rm -f gthr-default.h
2835 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2836 gthread_flags=-DHAVE_GTHR_DEFAULT
2838 AC_SUBST(gthread_flags)
2840 # Find out what GC implementation we want, or may, use.
2842 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2849 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2854 echo "Using $GGC for garbage collection."
2856 # Use the system's zlib library.
2858 zlibinc="-I\$(srcdir)/../zlib"
2859 AC_ARG_WITH(system-zlib,
2860 [ --with-system-zlib use installed libz],
2867 dnl Very limited version of automake's enable-maintainer-mode
2869 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2870 dnl maintainer-mode is disabled by default
2871 AC_ARG_ENABLE(maintainer-mode,
2872 [ --enable-maintainer-mode
2873 enable make rules and dependencies not useful
2874 (and sometimes confusing) to the casual installer],
2875 maintainer_mode=$enableval,
2878 AC_MSG_RESULT($maintainer_mode)
2880 if test "$maintainer_mode" = "yes"; then
2887 # Make empty files to contain the specs and options for each language.
2888 # Then add #include lines to for a compiler that has specs and/or options.
2894 for subdir in . $subdirs
2896 if test -f $srcdir/$subdir/lang.opt; then
2897 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2899 if test -f $srcdir/$subdir/lang-specs.h; then
2900 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2902 if test -f $srcdir/$subdir/lang-options.h; then
2903 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2905 if test -f $srcdir/$subdir/$subdir-tree.def; then
2906 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2910 # These (without "all_") are set in each config-lang.in.
2911 # `language' must be a single word so is spelled singularly.
2916 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2917 # List of language makefile fragments.
2919 # Files for gengtype
2920 all_gtfiles="$target_gtfiles"
2921 # Files for gengtype with language
2922 all_gtfiles_files_langs=
2923 all_gtfiles_files_files=
2925 # Add the language fragments.
2926 # Languages are added via two mechanisms. Some information must be
2927 # recorded in makefile variables, these are defined in config-lang.in.
2928 # We accumulate them and plug them into the main Makefile.
2929 # The other mechanism is a set of hooks for each of the main targets
2930 # like `clean', `install', etc.
2932 language_fragments="Make-lang"
2933 language_hooks="Make-hooks"
2935 for s in .. $subdirs
2945 . ${srcdir}/$s/config-lang.in
2946 if test "x$language" = x
2948 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2951 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2952 if test -f ${srcdir}/$s/Makefile.in
2953 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2955 all_languages="$all_languages $language"
2956 if test "x$boot_language" = xyes
2958 all_boot_languages="$all_boot_languages $language"
2960 all_compilers="$all_compilers $compilers"
2961 all_stagestuff="$all_stagestuff $stagestuff"
2962 all_outputs="$all_outputs $outputs"
2963 all_gtfiles="$all_gtfiles $gtfiles"
2964 for f in .. $gtfiles
2968 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2969 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2975 # Pick up gtfiles for c
2978 . ${srcdir}/c-config-lang.in
2979 all_gtfiles="$all_gtfiles $gtfiles"
2980 for f in .. $gtfiles
2984 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2985 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2990 for language in .. $all_languages
2992 if test $language != ".."
2994 check_languages="$check_languages check-$language"
2998 # Since we can't use `::' targets, we link each language in
2999 # with a set of hooks, reached indirectly via lang.${target}.
3003 target_list="all.build all.cross start.encap rest.encap tags \
3004 info dvi generated-manpages \
3005 install-normal install-common install-info install-man \
3007 mostlyclean clean distclean extraclean maintainer-clean \
3008 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3009 for t in $target_list
3012 for lang in .. $all_languages
3014 if test $lang != ".."; then
3018 echo "lang.$t: $x" >> Make-hooks
3023 echo "dir ." > .gdbinit
3024 echo "dir ${srcdir}" >> .gdbinit
3025 if test x$gdb_needs_out_file_path = xyes
3027 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3029 if test "x$subdirs" != x; then
3032 echo "dir ${srcdir}/$s" >> .gdbinit
3035 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3037 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3038 # absolute path for gcc_tooldir based on inserting the number of up-directory
3039 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3040 # $(libsubdir)/@(unlibsubdir) based path.
3041 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3042 # make and thus we'd get different behavior depending on where we built the
3044 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3045 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
3047 changequote(<<, >>)dnl
3048 # An explanation of the sed strings:
3049 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3050 # -e 's|/$||' match a trailing forward slash and eliminates it
3051 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3052 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3054 # (*) Note this pattern overwrites the first character of the string
3055 # with a forward slash if one is not already present. This is not a
3056 # problem because the exact names of the sub-directories concerned is
3057 # unimportant, just the number of them matters.
3059 # The practical upshot of these patterns is like this:
3061 # prefix exec_prefix result
3062 # ------ ----------- ------
3064 # /foo/ /foo/bar ../
3065 # /foo /foo/bar/ ../
3066 # /foo/ /foo/bar/ ../
3067 # /foo /foo/bar/ugg ../../
3070 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
3071 changequote([, ])dnl
3073 AC_SUBST(gcc_tooldir)
3076 # Find a directory in which to install a shared libgcc.
3078 AC_ARG_ENABLE(version-specific-runtime-libs,
3079 [ --enable-version-specific-runtime-libs
3080 specify that runtime libraries should be
3081 installed in a compiler-specific directory])
3083 AC_ARG_WITH(slibdir,
3084 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3085 slibdir="$with_slibdir",
3086 if test "${enable_version_specific_runtime_libs+set}" = set; then
3087 slibdir='$(libsubdir)'
3088 elif test "$host" != "$target"; then
3089 slibdir='$(build_tooldir)/lib'
3095 objdir=`${PWDCMD-pwd}`
3098 # Process the language and host/target makefile fragments.
3099 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
3101 # Substitute configuration variables
3104 AC_SUBST(all_boot_languages)
3105 AC_SUBST(all_compilers)
3106 AC_SUBST(all_gtfiles)
3107 AC_SUBST(all_gtfiles_files_langs)
3108 AC_SUBST(all_gtfiles_files_files)
3109 AC_SUBST(all_lang_makefiles)
3110 AC_SUBST(all_languages)
3111 AC_SUBST(all_stagestuff)
3112 AC_SUBST(build_exeext)
3113 AC_SUBST(build_install_headers_dir)
3114 AC_SUBST(build_xm_file_list)
3115 AC_SUBST(build_xm_file)
3116 AC_SUBST(build_xm_defines)
3117 AC_SUBST(check_languages)
3118 AC_SUBST(cc_set_by_configure)
3119 AC_SUBST(quoted_cc_set_by_configure)
3120 AC_SUBST(cpp_install_dir)
3121 AC_SUBST(dep_host_xmake_file)
3122 AC_SUBST(dep_tmake_file)
3123 AC_SUBST(extra_headers_list)
3124 AC_SUBST(extra_objs)
3125 AC_SUBST(extra_parts)
3126 AC_SUBST(extra_passes)
3127 AC_SUBST(extra_programs)
3128 AC_SUBST(float_h_file)
3129 AC_SUBST(gcc_config_arguments)
3130 AC_SUBST(gcc_gxx_include_dir)
3131 AC_SUBST(libstdcxx_incdir)
3132 AC_SUBST(gcc_version)
3133 AC_SUBST(gcc_version_full)
3134 AC_SUBST(gcc_version_trigger)
3135 AC_SUBST(host_exeext)
3136 AC_SUBST(host_extra_gcc_objs)
3137 AC_SUBST(host_xm_file_list)
3138 AC_SUBST(host_xm_file)
3139 AC_SUBST(host_xm_defines)
3140 AC_SUBST(out_host_hook_obj)
3142 AC_SUBST(lang_opt_files)
3143 AC_SUBST(lang_options_files)
3144 AC_SUBST(lang_specs_files)
3145 AC_SUBST(lang_tree_files)
3146 AC_SUBST(local_prefix)
3148 AC_SUBST(objc_boehm_gc)
3150 AC_SUBST(out_object_file)
3151 AC_SUBST(stage_prefix_set_by_configure)
3152 AC_SUBST(quoted_stage_prefix_set_by_configure)
3153 AC_SUBST(symbolic_link)
3154 AC_SUBST(thread_file)
3155 AC_SUBST(tm_file_list)
3157 AC_SUBST(tm_defines)
3158 AC_SUBST(tm_p_file_list)
3161 AC_SUBST(xm_defines)
3162 AC_SUBST(target_alias)
3163 AC_SUBST(c_target_objs)
3164 AC_SUBST(cxx_target_objs)
3165 AC_SUBST(target_cpu_default)
3167 AC_SUBST_FILE(target_overrides)
3168 AC_SUBST_FILE(host_overrides)
3169 AC_SUBST_FILE(language_fragments)
3170 AC_SUBST_FILE(language_hooks)
3172 # Echo that links are built
3173 if test x$host = x$target
3181 if test x$host != x$build
3183 str3=" on a $build system"
3186 if test "x$str2" != x || test "x$str3" != x
3191 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3193 if test "x$str2" != x || test "x$str3" != x
3195 echo " ${str2}${str3}." 1>&2
3198 # Configure the subdirectories
3199 # AC_CONFIG_SUBDIRS($subdirs)
3201 # Create the Makefile
3202 # and configure language subdirectories
3203 AC_OUTPUT($all_outputs,
3205 case x$CONFIG_HEADERS in
3206 xauto-host.h:config.in)
3209 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3210 # bootstrapping and the installation procedure can still use
3211 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3212 # FLAGS_TO_PASS has been modified to solve the problem there.
3213 # This is virtually a duplicate of what happens in configure.lang; we do
3214 # an extra check to make sure this only happens if ln -s can be used.
3215 if test "$symbolic_link" = "ln -s"; then
3216 for d in .. ${subdirs} fixinc ; do
3217 if test $d != ..; then
3218 STARTDIR=`${PWDCMD-pwd}`
3220 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3223 $symbolic_link ../$t $t 2>/dev/null
3229 # Avoid having to add intl to our include paths.
3230 if test -f intl/libintl.h; then
3231 echo creating libintl.h
3232 echo '#include "intl/libintl.h"' >libintl.h
3236 symbolic_link='$symbolic_link'