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 # Define variables host_canonical and build_canonical
36 build_canonical=${build}
37 host_canonical=${host}
38 AC_SUBST(build_canonical)
39 AC_SUBST(host_canonical)
41 target_subdir=${target_alias}
42 AC_SUBST(target_subdir)
44 # Set program_transform_name
47 # Check for bogus environment variables.
48 # Test if LIBRARY_PATH contains the notation for the current directory
49 # since this would lead to problems installing/building glibc.
50 # LIBRARY_PATH contains the current directory if one of the following
52 # - one of the terminals (":" and ";") is the first or last sign
53 # - two terminals occur directly after each other
54 # - the path contains an element with a dot in it
55 AC_MSG_CHECKING(LIBRARY_PATH variable)
57 case ${LIBRARY_PATH} in
58 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
59 library_path_setting="contains current directory"
62 library_path_setting="ok"
66 AC_MSG_RESULT($library_path_setting)
67 if test "$library_path_setting" != "ok"; then
69 *** LIBRARY_PATH shouldn't contain the current directory when
70 *** building gcc. Please change the environment variable
71 *** and run configure again.])
74 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
75 # since this would lead to problems installing/building glibc.
76 # GCC_EXEC_PREFIX contains the current directory if one of the following
78 # - one of the terminals (":" and ";") is the first or last sign
79 # - two terminals occur directly after each other
80 # - the path contains an element with a dot in it
81 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
83 case ${GCC_EXEC_PREFIX} in
84 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
85 gcc_exec_prefix_setting="contains current directory"
88 gcc_exec_prefix_setting="ok"
92 AC_MSG_RESULT($gcc_exec_prefix_setting)
93 if test "$gcc_exec_prefix_setting" != "ok"; then
95 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
96 *** building gcc. Please change the environment variable
97 *** and run configure again.])
104 # Specify the local prefix
106 AC_ARG_WITH(local-prefix,
107 [ --with-local-prefix=DIR specifies directory to put local include],
108 [case "${withval}" in
109 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
111 *) local_prefix=$with_local_prefix ;;
114 # Default local prefix if it is empty
115 if test x$local_prefix = x; then
116 local_prefix=/usr/local
119 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
120 # passed in by the toplevel make and thus we'd get different behavior
121 # depending on where we built the sources.
123 # Specify the g++ header file directory
124 AC_ARG_WITH(gxx-include-dir,
125 [ --with-gxx-include-dir=DIR
126 specifies directory to put g++ header files],
127 [case "${withval}" in
128 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
130 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
133 if test x${gcc_gxx_include_dir} = x; then
134 if test x${enable_version_specific_runtime_libs} = xyes; then
135 gcc_gxx_include_dir='${libsubdir}/include/c++'
137 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
138 changequote(<<, >>)dnl
139 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
144 AC_ARG_WITH(cpp_install_dir,
145 [ --with-cpp-install-dir=DIR
146 install the user visible C preprocessor in DIR
147 (relative to PREFIX) as well as PREFIX/bin],
148 [if test x$withval = xyes; then
149 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
150 elif test x$withval != xno; then
151 cpp_install_dir=$withval
154 # -------------------
155 # Find default linker
156 # -------------------
160 [ --with-gnu-ld arrange to work with GNU ld.],
161 gnu_ld_flag="$with_gnu_ld",
164 # With pre-defined ld
166 [ --with-ld arrange to use the specified ld (full pathname)],
167 DEFAULT_LINKER="$with_ld")
168 if test x"${DEFAULT_LINKER+set}" = x"set"; then
169 if test ! -x "$DEFAULT_LINKER"; then
170 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
171 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
174 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
175 [Define to enable the use of a default linker.])
178 AC_MSG_CHECKING([whether a default linker was specified])
179 if test x"${DEFAULT_LINKER+set}" = x"set"; then
180 if test x"$gnu_ld_flag" = x"no"; then
181 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
183 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
189 # ----------------------
190 # Find default assembler
191 # ----------------------
195 [ --with-gnu-as arrange to work with GNU as],
196 gas_flag="$with_gnu_as",
200 [ --with-as arrange to use the specified as (full pathname)],
201 DEFAULT_ASSEMBLER="$with_as")
202 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
203 if test ! -x "$DEFAULT_ASSEMBLER"; then
204 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
205 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
208 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
209 [Define to enable the use of a default assembler.])
212 AC_MSG_CHECKING([whether a default assembler was specified])
213 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
214 if test x"$gas_flag" = x"no"; then
215 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
217 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
227 # Find the native compiler
230 # autoconf is lame and doesn't give us any substitution variable for this.
231 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
232 NO_MINUS_C_MINUS_O=yes
234 OUTPUT_OPTION='-o $@'
236 AC_SUBST(NO_MINUS_C_MINUS_O)
237 AC_SUBST(OUTPUT_OPTION)
239 # -------------------------
240 # Check C compiler features
241 # -------------------------
243 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
244 ac_cv_prog_cc_no_long_long,
245 [save_CFLAGS="$CFLAGS"
246 CFLAGS="-Wno-long-long"
247 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
248 ac_cv_prog_cc_no_long_long=no)
249 CFLAGS="$save_CFLAGS"])
259 # sizeof(char) is 1 by definition.
260 AC_COMPILE_CHECK_SIZEOF(short)
261 AC_COMPILE_CHECK_SIZEOF(int)
262 AC_COMPILE_CHECK_SIZEOF(long)
263 if test $ac_cv_c_long_long = yes; then
264 AC_COMPILE_CHECK_SIZEOF(long long)
266 if test $ac_cv_c___int64 = yes; then
267 AC_COMPILE_CHECK_SIZEOF(__int64)
276 # See if GNAT has been installed
279 if test x$have_gnat != xno ; then
280 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
281 ac_cv_prog_adac_no_long_long,
282 [cat >conftest.adb <<EOF
283 procedure conftest is begin null; end conftest;
285 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
286 ac_cv_prog_adac_no_long_long=yes
288 ac_cv_prog_adac_no_long_long=no
292 ac_cv_prog_adac_no_long_long=yes
295 # ---------------------
296 # Warnings and checking
297 # ---------------------
300 if test $ac_cv_prog_cc_no_long_long = yes && \
301 test $ac_cv_prog_adac_no_long_long = yes ; then
302 strict1_warn="-pedantic -Wno-long-long"
304 AC_SUBST(strict1_warn)
306 # If the native compiler is GCC, we can enable warnings even in stage1.
307 # That's useful for people building cross-compilers, or just running a
310 if test "x$GCC" = "xyes"; then
311 warn_cflags='$(GCC_WARN_CFLAGS)'
313 AC_SUBST(warn_cflags)
315 # Enable -Werror in bootstrap stage2 and later.
316 # Change the default to "no" on release branches.
317 AC_ARG_ENABLE(werror,
318 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
320 if test x$enable_werror = xyes ; then
325 # Enable expensive internal checks
326 AC_ARG_ENABLE(checking,
327 [ --enable-checking[=LIST]
328 enable expensive run-time checks. With LIST,
329 enable only specific categories of checks.
330 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
331 default is misc,tree,gc,rtlflag],
337 ac_gc_always_collect=
338 case "${enableval}" in
339 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
340 ac_rtlflag_checking=1 ;;
342 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
343 set fnord $enableval; shift
348 misc) ac_checking=1 ;;
349 tree) ac_tree_checking=1 ;;
350 rtlflag) ac_rtlflag_checking=1 ;;
351 rtl) ac_rtl_checking=1 ;;
352 gc) ac_gc_checking=1 ;;
353 gcac) ac_gc_always_collect=1 ;;
354 valgrind) ac_checking_valgrind=1 ;;
355 *) AC_MSG_ERROR(unknown check category $check) ;;
361 # Enable some checks by default for development versions of GCC
362 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
364 if test x$ac_checking != x ; then
365 AC_DEFINE(ENABLE_CHECKING, 1,
366 [Define if you want more run-time sanity checks. This one gets a grab
367 bag of miscellaneous but relatively cheap checks.])
368 nocommon_flag=-fno-common
370 AC_SUBST(nocommon_flag)
371 if test x$ac_tree_checking != x ; then
372 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
373 [Define if you want all operations on trees (the basic data
374 structure of the front ends) to be checked for dynamic type safety
375 at runtime. This is moderately expensive.])
377 if test x$ac_rtl_checking != x ; then
378 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
379 [Define if you want all operations on RTL (the basic data structure
380 of the optimizer and back end) to be checked for dynamic type safety
381 at runtime. This is quite expensive.])
383 if test x$ac_rtlflag_checking != x ; then
384 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
385 [Define if you want RTL flag accesses to be checked against the RTL
386 codes that are supported for each access macro. This is relatively
389 if test x$ac_gc_checking != x ; then
390 AC_DEFINE(ENABLE_GC_CHECKING, 1,
391 [Define if you want the garbage collector to do object poisoning and
392 other memory allocation checks. This is quite expensive.])
394 if test x$ac_gc_always_collect != x ; then
395 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
396 [Define if you want the garbage collector to operate in maximally
397 paranoid mode, validating the entire heap and collecting garbage at
398 every opportunity. This is extremely expensive.])
400 valgrind_path_defines=
402 if test x$ac_checking_valgrind != x ; then
403 # It is certainly possible that there's valgrind but no valgrind.h.
404 # GCC relies on making annotations so we must have both.
405 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
407 [#include <memcheck.h>
408 #ifndef VALGRIND_DISCARD
409 #error VALGRIND_DISCARD not defined
411 [gcc_cv_header_memcheck_h=yes],
412 gcc_cv_header_memcheck_h=no)
413 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
414 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
415 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
416 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
417 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
418 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
420 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
421 valgrind_command="$valgrind_path -q"
422 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
423 [Define if you want to run subprograms and generated programs
424 through valgrind (a memory checker). This is extremely expensive.])
425 if test $gcc_cv_header_memcheck_h = yes; then
426 AC_DEFINE(HAVE_MEMCHECK_H, 1,
427 [Define if valgrind's memcheck.h header is installed.])
430 AC_SUBST(valgrind_path_defines)
431 AC_SUBST(valgrind_command)
433 # Enable code coverage collection
434 AC_ARG_ENABLE(coverage,
435 [ --enable-coverage[=LEVEL]
436 enable compiler\'s code coverage collection.
437 Use to measure compiler performance and locate
438 unused parts of the compiler. With LEVEL, specify
439 optimization. Values are opt, noopt,
441 [case "${enableval}" in
443 coverage_flags="-fprofile-arcs -ftest-coverage -O0 -DSELF_COVERAGE=1"
446 coverage_flags="-fprofile-arcs -ftest-coverage -O2 -DSELF_COVERAGE=2"
449 AC_MSG_ERROR(unknown coverage setting $enableval)
453 AC_SUBST(coverage_flags)
455 # -------------------------------
456 # Miscenalleous configure options
457 # -------------------------------
461 [ --with-stabs arrange to use stabs instead of host debug format],
467 [ --with-elf arrange to use ELF instead of host debug format],
471 # Determine whether or not multilibs are enabled.
472 AC_ARG_ENABLE(multilib,
473 [ --enable-multilib enable library support for multiple ABIs],
474 [], [enable_multilib=yes])
475 AC_SUBST(enable_multilib)
477 # Enable __cxa_atexit for C++.
478 AC_ARG_ENABLE(__cxa_atexit,
479 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
482 # Enable Multibyte Characters for C/C++
483 AC_ARG_ENABLE(c-mbchar,
484 [ --enable-c-mbchar enable multibyte characters for C and C++],
485 if test x$enable_c_mbchar != xno; then
486 AC_DEFINE(MULTIBYTE_CHARS, 1,
487 [Define if you want the C and C++ compilers to support multibyte
488 character sets for source code.])
492 # Pass with no value to take the default
493 # Pass with a value to specify a thread package
494 AC_ARG_ENABLE(threads,
495 [ --enable-threads enable thread usage for target GCC
496 --enable-threads=LIB use LIB thread package for target GCC],,
499 enable_threads_flag=$enable_threads
500 # Check if a valid thread package
501 case x${enable_threads_flag} in
504 target_thread_file='single'
508 target_thread_file=''
510 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
511 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
512 target_thread_file=$enable_threads_flag
515 echo "$enable_threads is an unknown thread package" 1>&2
520 AC_ARG_ENABLE(objc-gc,
521 [ --enable-objc-gc enable the use of Boehm's garbage collector with
522 the GNU Objective-C runtime],
523 if test x$enable_objc_gc = xno; then
531 [ --with-dwarf2 force the default debug format to be DWARF 2],
532 dwarf2="$with_dwarf2",
535 AC_ARG_ENABLE(shared,
536 [ --disable-shared don't provide a shared libgcc],
538 case $enable_shared in
542 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
543 for pkg in $enableval; do
544 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
551 ], [enable_shared=yes])
552 AC_SUBST(enable_shared)
555 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
557 case ${with_sysroot} in
558 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
559 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
562 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
563 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
565 if test "x$exec_prefix" = xNONE; then
566 if test "x$prefix" = xNONE; then
567 test_prefix=/usr/local
572 test_prefix=$exec_prefix
574 case ${TARGET_SYSTEM_ROOT} in
575 "${test_prefix}"|"${test_prefix}/"*|\
576 '${exec_prefix}'|'${exec_prefix}/'*)
577 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
578 TARGET_SYSTEM_ROOT_DEFINE="$t"
583 TARGET_SYSTEM_ROOT_DEFINE=
584 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
586 AC_SUBST(TARGET_SYSTEM_ROOT)
587 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
588 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
590 # -------------------------
591 # Checks for other programs
592 # -------------------------
596 # Find some useful tools
603 # See if we have the mktemp command.
604 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
606 # Do we have a single-tree copy of texinfo?
607 if test -f $srcdir/../texinfo/Makefile.in; then
608 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
609 gcc_cv_prog_makeinfo_modern=yes
610 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
612 # See if makeinfo has been installed and is modern enough
613 # that we can use it.
614 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
615 [GNU texinfo.* \([0-9][0-9.]*\)],
619 if test $gcc_cv_prog_makeinfo_modern = no; then
621 *** Makeinfo is missing or too old.
622 *** Info documentation will not be built.])
625 BUILD_INFO=info AC_SUBST(BUILD_INFO)
628 # Is pod2man recent enough to regenerate manpages?
629 AC_MSG_CHECKING([for recent Pod::Man])
630 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
632 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
638 # 'make compare' can be significantly faster, if cmp itself can
639 # skip bytes instead of using tail. The test being performed is
640 # "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
641 # but we need to sink errors and handle broken shells.
642 AC_MSG_CHECKING([for cmp's capabilities])
645 if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
646 if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
647 make_compare_target=slowcompare
649 make_compare_target=gnucompare
652 make_compare_target=slowcompare
655 AC_SUBST(make_compare_target)
656 AC_MSG_RESULT($make_compare_target)
659 dnl Don't use AC_PROG_LEX; we insist on flex.
660 dnl LEXLIB is not useful in gcc.
661 if test -f $srcdir/../flex/skel.c; then
662 FLEX='$(objdir)/../flex/flex'
664 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
668 # The -L switch is so bison can find its skeleton file.
669 if test -f $srcdir/../bison/bison.simple; then
670 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
672 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
675 # --------------------
676 # Checks for C headers
677 # --------------------
679 AC_MSG_CHECKING(for GNU C library)
680 AC_CACHE_VAL(gcc_cv_glibc,
682 [#include <features.h>],[
683 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
684 #error Not a GNU C library system
688 AC_MSG_RESULT($gcc_cv_glibc)
689 if test $gcc_cv_glibc = yes; then
690 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
695 gcc_AC_HEADER_STDBOOL
698 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
699 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
700 sys/resource.h sys/param.h sys/times.h sys/stat.h \
701 direct.h malloc.h langinfo.h ldfcn.h wchar.h)
703 # Check for thread headers.
704 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
705 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
707 # These tests can't be done till we know if we have limits.h.
715 # Stage specific cflags for build.
721 stage1_cflags="-Wa,-J"
727 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
728 # sources; use -no-cpp-precomp to get to GNU cpp.
729 # Apple's GCC has bugs in designated initializer handling, so disable
731 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
734 AC_SUBST(stage1_cflags)
736 # These libraries may be used by collect2.
737 # We may need a special search path to get them linked.
738 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
740 for libs in '' -lld -lmld \
741 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
742 '-L/usr/lib/cmplrs/cc3.11 -lmld'
745 AC_TRY_LINK_FUNC(ldopen,
746 [gcc_cv_collect2_libs="$libs"; break])
749 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
750 case $gcc_cv_collect2_libs in
752 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
754 AC_SUBST(COLLECT2_LIBS)
756 # When building Ada code on Alpha, we need exc_resume which is usually in
757 # -lexc. So test for it.
760 AC_SEARCH_LIBS(exc_resume, exc)
763 AC_SUBST(GNAT_LIBEXC)
765 # Some systems put ldexp and frexp in libm instead of libc; assume
766 # they're both in the same place. jcf-dump needs them.
769 AC_SEARCH_LIBS(ldexp, m)
774 # See if the stage1 system preprocessor understands the ANSI C
775 # preprocessor stringification operator. (Used by symcat.h.)
778 # Use <inttypes.h> only if it exists,
779 # doesn't clash with <sys/types.h>, and declares intmax_t.
780 AC_MSG_CHECKING(for inttypes.h)
781 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
783 [#include <sys/types.h>
784 #include <inttypes.h>],
786 [gcc_cv_header_inttypes_h=yes],
787 gcc_cv_header_inttypes_h=no)])
788 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
789 if test $gcc_cv_header_inttypes_h = yes; then
790 AC_DEFINE(HAVE_INTTYPES_H, 1,
791 [Define if you have a working <inttypes.h> header file.])
794 dnl Disabled until we have a complete test for buggy enum bitfields.
795 dnl gcc_AC_C_ENUM_BF_UNSIGNED
797 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
798 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
799 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
800 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore)
802 if test x$ac_cv_func_mbstowcs = xyes; then
803 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
804 [ AC_TRY_RUN([#include <stdlib.h>
810 gcc_cv_func_mbstowcs_works=yes,
811 gcc_cv_func_mbstowcs_works=no,
812 gcc_cv_func_mbstowcs_works=yes)])
813 if test x$gcc_cv_func_mbstowcs_works = xyes; then
814 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
815 [Define this macro if mbstowcs does not crash when its
816 first argument is NULL.])
820 AC_CHECK_TYPE(ssize_t, int)
822 # Try to determine the array type of the second argument of getgroups
823 # for the target system (int or gid_t).
825 if test "${target}" = "${build}"; then
826 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
829 # This condition may need some tweaking. It should include all
830 # targets where the array type of the second argument of getgroups
831 # is int and the type of gid_t is not equivalent to int.
832 *-*-sunos* | *-*-ultrix*)
833 TARGET_GETGROUPS_T=int
836 TARGET_GETGROUPS_T=gid_t
840 AC_SUBST(TARGET_GETGROUPS_T)
842 gcc_AC_FUNC_PRINTF_PTR
843 gcc_AC_FUNC_MMAP_BLACKLIST
848 *** UWIN may not be used as a host platform because
849 *** linking with posix.dll is not allowed by the GNU GPL])
852 # Under VMS, vfork works very different than on Unix. The standard test
853 # won't work, and it isn't easily adaptable. It makes more sense to
855 ac_cv_func_vfork_works=yes
862 # We will need to find libiberty.h and ansidecl.h
863 saved_CFLAGS="$CFLAGS"
864 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
865 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
866 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
867 fprintf_unlocked strstr errno vasprintf \
868 malloc realloc calloc free basename getopt clock, , ,[
869 #include "ansidecl.h"
870 #include "system.h"])
872 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
873 #include "ansidecl.h"
875 #ifdef HAVE_SYS_RESOURCE_H
876 #include <sys/resource.h>
881 #include "ansidecl.h"
883 #ifdef HAVE_SYS_RESOURCE_H
884 #include <sys/resource.h>
886 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
887 [Define to \`long' if <sys/resource.h> doesn't define.])])
889 gcc_AC_CHECK_DECLS(ldgetname, , ,[
890 #include "ansidecl.h"
897 gcc_AC_CHECK_DECLS(times, , ,[
898 #include "ansidecl.h"
900 #ifdef HAVE_SYS_TIMES_H
901 #include <sys/times.h>
905 # More time-related stuff.
906 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
908 #include "ansidecl.h"
910 #ifdef HAVE_SYS_TIMES_H
911 #include <sys/times.h>
913 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
914 if test $ac_cv_struct_tms = yes; then
915 AC_DEFINE(HAVE_STRUCT_TMS, 1,
916 [Define if <sys/times.h> defines struct tms.])
919 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
920 # revisit after autoconf 2.50.
921 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
923 #include "ansidecl.h"
925 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
926 if test $gcc_cv_type_clock_t = yes; then
927 AC_DEFINE(HAVE_CLOCK_T, 1,
928 [Define if <time.h> defines clock_t.])
931 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
933 #include "ansidecl.h"
936 [if ((uchar *)0) return 0;
937 if (sizeof(uchar)) return 0;],
938 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
939 if test $ac_cv_type_uchar = yes; then
940 AC_DEFINE(HAVE_UCHAR, 1,
941 [Define if <sys/types.h> defines \`uchar'.])
944 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
945 CFLAGS="$saved_CFLAGS"
947 gcc_AC_INITFINI_ARRAY
949 # mkdir takes a single argument on some systems.
950 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
958 # With Setjmp/Longjmp based exception handling.
959 AC_ARG_ENABLE(sjlj-exceptions,
960 [ --enable-sjlj-exceptions
961 arrange to use setjmp/longjmp exception handling],
962 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
963 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
964 [Define 0/1 to force the choice for exception handling model.])])
966 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
967 # Use libunwind based exception handling.
968 AC_ARG_ENABLE(libunwind-exceptions,
969 [ --enable-libunwind-exceptions force use libunwind for exceptions],
970 use_libunwind_exceptions=$enableval,
971 use_libunwind_exceptions=$use_libunwind_default)
972 if test x"$use_libunwind_exceptions" = xyes; then
973 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
974 [Define if gcc should use -lunwind.])
977 # --------------------------------------------------------
978 # Build, host, and target specific configuration fragments
979 # --------------------------------------------------------
984 build_install_headers_dir=install-headers-tar
989 host_truncate_target=
992 # Decode the host machine, then the target machine.
993 # For the host machine, we save the xm_file variable as host_xm_file;
994 # then we decode the target machine and forget everything else
995 # that came from the host machine.
996 for machine in $build $host $target; do
997 . ${srcdir}/config.gcc
1000 extra_objs="${host_extra_objs} ${extra_objs}"
1002 # Default the target-machine variables that were not explicitly set.
1003 if test x"$tm_file" = x
1004 then tm_file=$cpu_type/$cpu_type.h; fi
1006 if test x"$extra_headers" = x
1007 then extra_headers=; fi
1009 if test x$md_file = x
1010 then md_file=$cpu_type/$cpu_type.md; fi
1012 if test x$out_file = x
1013 then out_file=$cpu_type/$cpu_type.c; fi
1015 if test x"$tmake_file" = x
1016 then tmake_file=$cpu_type/t-$cpu_type
1019 if test x"$dwarf2" = xyes
1020 then tm_file="$tm_file tm-dwarf2.h"
1023 # Say what files are being used for the output code and MD file.
1024 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1025 echo "Using \`$srcdir/config/$md_file' as machine description file."
1027 # If any of the xm_file variables contain nonexistent files, warn
1028 # about them and drop them.
1031 for x in $build_xm_file; do
1032 if test -f $srcdir/config/$x
1034 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1040 for x in $host_xm_file; do
1041 if test -f $srcdir/config/$x
1043 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1049 for x in $xm_file; do
1050 if test -f $srcdir/config/$x
1052 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1058 for f in $tm_file; do
1061 if test $count = ax; then
1062 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1064 echo "Using the following target machine macro files:"
1065 for f in $tm_file; do
1066 echo " $srcdir/config/$f"
1070 if test x$need_64bit_hwint = xyes; then
1071 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1072 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1076 for f in $host_xm_file; do
1079 if test $count = a; then
1081 elif test $count = ax; then
1082 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1084 echo "Using the following host machine macro files:"
1085 for f in $host_xm_file; do
1086 echo " $srcdir/config/$f"
1089 echo "Using ${out_host_hook_obj} for host machine hooks."
1091 if test "$host_xm_file" != "$build_xm_file"; then
1093 for f in $build_xm_file; do
1096 if test $count = a; then
1098 elif test $count = ax; then
1099 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1101 echo "Using the following build machine macro files:"
1102 for f in $build_xm_file; do
1103 echo " $srcdir/config/$f"
1108 if test x$thread_file = x; then
1109 if test x$target_thread_file != x; then
1110 thread_file=$target_thread_file
1112 thread_file='single'
1116 if test x$enable___cxa_atexit = xyes || \
1117 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1118 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1119 [Define if you want to use __cxa_atexit, rather than atexit, to
1120 register C++ destructors for local statics and global objects.
1121 This is essential for fully standards-compliant handling of
1122 destructors, but requires __cxa_atexit in libc.])
1125 # Look for a file containing extra machine modes.
1126 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1127 extra_modes_file='$(srcdir)'/config/${extra_modes}
1128 AC_SUBST(extra_modes_file)
1129 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1130 [Define to the name of a file containing a list of extra machine modes
1131 for this architecture.])
1132 AC_DEFINE(EXTRA_CC_MODES, 1,
1133 [Define if the target architecture needs extra machine modes to represent
1134 the results of comparisons.])
1137 # auto-host.h is the file containing items generated by autoconf and is
1138 # the first file included by config.h.
1139 # If host=build, it is correct to have bconfig include auto-host.h
1140 # as well. If host!=build, we are in error and need to do more
1141 # work to find out the build config parameters.
1142 if test x$host = x$build
1144 build_auto=auto-host.h
1147 # We create a subdir, then run autoconf in the subdir.
1148 # To prevent recursion we set host and build for the new
1149 # invocation of configure to the build for this invocation
1156 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1157 *) realsrcdir=../${srcdir};;
1159 saved_CFLAGS="${CFLAGS}"
1160 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1161 ${realsrcdir}/configure \
1162 --target=$target_alias --host=$build_alias --build=$build_alias
1163 CFLAGS="${saved_CFLAGS}"
1165 # We just finished tests for the build machine, so rename
1166 # the file auto-build.h in the gcc directory.
1167 mv auto-host.h ../auto-build.h
1170 build_auto=auto-build.h
1171 FORBUILD=../build-$build_alias
1175 tm_file="${tm_file} defaults.h"
1176 tm_p_file="${tm_p_file} tm-preds.h"
1177 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1178 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1179 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1180 # put this back in temporarily.
1181 xm_file="ansidecl.h ${xm_file}"
1187 # Truncate the target if necessary
1188 if test x$host_truncate_target != x; then
1189 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1192 # Get the version trigger filename from the toplevel
1193 if test "${with_gcc_version_trigger+set}" = set; then
1194 gcc_version_trigger=$with_gcc_version_trigger
1196 gcc_version_trigger=${srcdir}/version.c
1199 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1200 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1202 # Compile in configure arguments.
1203 if test -f configargs.h ; then
1204 # Being re-configured.
1205 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1206 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1208 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1210 cat > configargs.h <<EOF
1211 /* Generated automatically. */
1212 static const char configuration_arguments[] = "$gcc_config_arguments";
1213 static const char thread_model[] = "$thread_file";
1215 static const struct {
1216 const char *name, *value;
1217 } configure_default_options[] = $configure_default_options;
1221 # Internationalization
1223 VERSION="$gcc_version"
1227 # Enable NLS support by default
1229 [ --enable-nls use Native Language Support (default)],
1232 # if cross compiling, disable NLS support.
1233 # It's not worth the trouble, at least for now.
1235 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1236 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1242 # Windows32 Registry support for specifying GCC installation paths.
1243 AC_ARG_ENABLE(win32-registry,
1244 [ --disable-win32-registry
1245 disable lookup of installation paths in the
1246 Registry on Windows hosts
1247 --enable-win32-registry enable registry lookup (default)
1248 --enable-win32-registry=KEY
1249 use KEY instead of GCC version as the last portion
1250 of the registry key],,)
1252 win32 | pe | cygwin* | mingw32* | uwin*)
1253 AC_MSG_CHECKING(whether windows registry support is requested)
1254 if test "x$enable_win32_registry" != xno; then
1255 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1256 [Define to 1 if installation paths should be looked up in Windows32
1257 Registry. Ignored on non windows32 hosts.])
1259 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1264 # Check if user specified a different registry key.
1265 case "x${enable_win32_registry}" in
1268 gcc_cv_win32_registry_key="$VERSION"
1271 # no registry lookup.
1272 gcc_cv_win32_registry_key=''
1275 # user-specified key.
1276 gcc_cv_win32_registry_key="$enable_win32_registry"
1280 if test "x$enable_win32_registry" != xno; then
1281 AC_MSG_CHECKING(registry key on windows hosts)
1282 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1283 [Define to be the last portion of registry key on windows hosts.])
1284 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1289 # Get an absolute path to the GCC top-level source directory
1290 holddir=`${PWDCMD-pwd}`
1292 topdir=`${PWDCMD-pwd}`
1295 # Conditionalize the makefile for this host machine.
1296 # Make-host contains the concatenation of all host makefile fragments
1297 # [there can be more than one]. This file is built by configure.frag.
1298 host_overrides=Make-host
1299 dep_host_xmake_file=
1300 for f in .. ${host_xmake_file}
1302 if test -f ${srcdir}/config/$f
1304 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1308 # Conditionalize the makefile for this target machine.
1309 # Make-target contains the concatenation of all host makefile fragments
1310 # [there can be more than one]. This file is built by configure.frag.
1311 target_overrides=Make-target
1313 for f in .. ${tmake_file}
1315 if test -f ${srcdir}/config/$f
1317 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1321 symbolic_link='ln -s'
1323 # If the host doesn't support symlinks, modify CC in
1324 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1325 # Otherwise, we can use "CC=$(CC)".
1327 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1329 cc_set_by_configure="\$(CC)"
1330 quoted_cc_set_by_configure="\$(CC)"
1331 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1332 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1335 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1337 symbolic_link="cp -p"
1341 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1342 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1343 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1344 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1348 out_object_file=`basename $out_file .c`.o
1351 for f in $tm_file; do
1354 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1356 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1357 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1362 for f in $tm_p_file; do
1365 tm_p_file_list="${tm_p_file_list} $f" ;;
1366 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1371 for f in $host_xm_file; do
1374 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1376 host_xm_file_list="${host_xm_file_list} $f" ;;
1378 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1379 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1384 for f in $build_xm_file; do
1387 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1388 auto-build.h | auto-host.h )
1389 build_xm_file_list="${build_xm_file_list} $f" ;;
1391 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1392 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1396 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1397 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1398 CROSS= AC_SUBST(CROSS)
1399 ALL=all.internal AC_SUBST(ALL)
1400 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1401 if test x$host != x$target
1403 CROSS="-DCROSS_COMPILE"
1405 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1406 case "$host","$target" in
1407 i?86-*-*,x86_64-*-* \
1408 | powerpc*-*-*,powerpc64*-*-*)
1409 CROSS="$CROSS -DNATIVE_CROSS" ;;
1411 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1412 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1413 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1416 # If this is a cross-compiler that does not
1417 # have its own set of headers then define
1420 # If this is using newlib, without having the headers available now,
1421 # then define inhibit_libc in LIBGCC2_CFLAGS.
1422 # This prevents libgcc2 from containing any code which requires libc
1425 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1426 test x$with_newlib = xyes ; } &&
1427 test "x$with_headers" = x ; then
1428 inhibit_libc=-Dinhibit_libc
1430 AC_SUBST(inhibit_libc)
1432 # When building gcc with a cross-compiler, we need to adjust things so
1433 # that the generator programs are still built with the native compiler.
1434 # Also, we cannot run fixincludes or fix-header.
1436 # These are the normal (build=host) settings:
1437 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1438 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1439 BUILD_CC='$(CC)' AC_SUBST(BUILD_CC)
1440 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1442 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1443 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1445 # And these apply if build != host.
1446 if test x$build != x$host
1449 BUILD_PREFIX_1=build-
1450 BUILD_CC='$(CC_FOR_BUILD)'
1451 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1453 if test "x$TARGET_SYSTEM_ROOT" = x; then
1459 # Expand extra_headers to include complete path.
1460 # This substitutes for lots of t-* files.
1462 if test "x$extra_headers" = x
1465 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1466 for file in $extra_headers;
1468 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1472 # Add a definition of USE_COLLECT2 if system wants one.
1473 case $use_collect2 in
1474 no) use_collect2= ;;
1477 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1478 xm_defines="${xm_defines} USE_COLLECT2"
1482 # Identify the assembler which will work hand-in-glove with the newly
1483 # built GCC, so that we can examine its features. This is the assembler
1484 # which will be driven by the driver program.
1486 # If build != host, and we aren't building gas in-tree, we identify a
1487 # build->target assembler and hope that it will have the same features
1488 # as the host->target assembler we'll be using.
1489 AC_MSG_CHECKING(what assembler to use)
1492 gcc_cv_gas_major_version=
1493 gcc_cv_gas_minor_version=
1494 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1495 if test -x "$DEFAULT_ASSEMBLER"; then
1496 gcc_cv_as="$DEFAULT_ASSEMBLER"
1497 elif test -x "$AS"; then
1499 elif test -x as$host_exeext; then
1500 # Build using assembler in the current directory.
1501 gcc_cv_as=./as$host_exeext
1502 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1503 && test -f ../gas/Makefile; then
1504 # Single tree build which includes gas.
1506 _gcc_COMPUTE_GAS_VERSION
1507 rm -f as$host_exeext
1508 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1511 if test "x$gcc_cv_as" = x; then
1512 # Search the same directories that the installed compiler will
1513 # search. Else we may find the wrong assembler and lose. If we
1514 # do not find a suitable assembler binary, then try the user's
1517 # Also note we have to check MD_EXEC_PREFIX before checking the
1518 # user's path. Unfortunately, there is no good way to get at the
1519 # value of MD_EXEC_PREFIX here. So we do a brute force search
1520 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1521 # to be fixed as part of the make/configure rewrite too.
1523 if test "x$exec_prefix" = xNONE; then
1524 if test "x$prefix" = xNONE; then
1525 test_prefix=/usr/local
1530 test_prefix=$exec_prefix
1533 # If the loop below does not find an assembler, then use whatever
1534 # one we can find in the users's path.
1536 if test "x$program_prefix" != xNONE; then
1537 gcc_cv_as=${program_prefix}as$host_exeext
1539 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1542 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1543 $test_prefix/lib/gcc-lib/$target_alias \
1544 /usr/lib/gcc/$target_alias/$gcc_version \
1545 /usr/lib/gcc/$target_alias \
1546 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1547 $test_prefix/$target_alias/bin"
1549 if test x$host = x$target; then
1550 test_dirs="$test_dirs \
1555 /bsd43/usr/lib/cmplrs/cc \
1556 /usr/cross64/usr/bin \
1557 /usr/lib/cmplrs/cc \
1558 /sysv/usr/lib/cmplrs/cc \
1559 /svr4/usr/lib/cmplrs/cc \
1563 for dir in $test_dirs; do
1564 if test -x $dir/as$host_exeext; then
1565 gcc_cv_as=$dir/as$host_exeext
1570 case $in_tree_gas in
1572 AC_MSG_RESULT("newly built gas")
1575 AC_MSG_RESULT($gcc_cv_as)
1579 # Identify the linker which will work hand-in-glove with the newly
1580 # built GCC, so that we can examine its features. This is the linker
1581 # which will be driven by the driver program.
1583 # If build != host, and we aren't building gas in-tree, we identify a
1584 # build->target linker and hope that it will have the same features
1585 # as the host->target linker we'll be using.
1586 AC_MSG_CHECKING(what linker to use)
1589 gcc_cv_gld_major_version=
1590 gcc_cv_gld_minor_version=
1591 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1592 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1593 if test -x "$DEFAULT_LINKER"; then
1594 gcc_cv_ld="$DEFAULT_LINKER"
1595 elif test -x "$LD"; then
1597 elif test -x collect-ld$host_exeext; then
1598 # Build using linker in the current directory.
1599 gcc_cv_ld=./collect-ld$host_exeext
1600 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1601 && test -f ../ld/Makefile; then
1602 # Single tree build which includes ld.
1604 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
1607 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1609 if test x$gcc_cv_gld_version != x; then
1614 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1615 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1617 rm -f collect-ld$host_exeext
1618 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1622 if test "x$gcc_cv_ld" = x; then
1623 # Search the same directories that the installed compiler will
1624 # search. Else we may find the wrong linker and lose. If we
1625 # do not find a suitable linker binary, then try the user's
1628 # Also note we have to check MD_EXEC_PREFIX before checking the
1629 # user's path. Unfortunately, there is no good way to get at the
1630 # value of MD_EXEC_PREFIX here. So we do a brute force search
1631 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1632 # to be fixed as part of the make/configure rewrite too.
1634 if test "x$exec_prefix" = xNONE; then
1635 if test "x$prefix" = xNONE; then
1636 test_prefix=/usr/local
1641 test_prefix=$exec_prefix
1644 # If the loop below does not find an linker, then use whatever
1645 # one we can find in the users's path.
1647 if test "x$program_prefix" != xNONE; then
1648 gcc_cv_ld=${program_prefix}ld$host_exeext
1650 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1653 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1654 $test_prefix/lib/gcc-lib/$target_alias \
1655 /usr/lib/gcc/$target_alias/$gcc_version \
1656 /usr/lib/gcc/$target_alias \
1657 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1658 $test_prefix/$target_alias/bin"
1660 if test x$host = x$target; then
1661 test_dirs="$test_dirs \
1666 /bsd43/usr/lib/cmplrs/cc \
1667 /usr/cross64/usr/bin \
1668 /usr/lib/cmplrs/cc \
1669 /sysv/usr/lib/cmplrs/cc \
1670 /svr4/usr/lib/cmplrs/cc \
1674 for dir in $test_dirs; do
1675 if test -x $dir/ld$host_exeext; then
1676 gcc_cv_ld=$dir/ld$host_exeext
1683 AC_MSG_RESULT("newly built ld")
1686 AC_MSG_RESULT($gcc_cv_ld)
1690 # Figure out what nm we will be using.
1691 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1692 AC_MSG_CHECKING(what nm to use)
1694 if test -x nm$host_exeext; then
1695 gcc_cv_nm=./nm$host_exeext
1696 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1697 && test -f ../binutils/Makefile; then
1698 # Single tree build which includes binutils.
1700 gcc_cv_nm=./nm$host_exeext
1701 rm -f nm$host_exeext
1702 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1703 elif test "x$program_prefix" != xNONE; then
1704 gcc_cv_nm=${program_prefix}nm$host_exeext
1706 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1709 yes) AC_MSG_RESULT("newly built nm") ;;
1710 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1713 # Figure out what objdump we will be using.
1714 AC_MSG_CHECKING(what objdump to use)
1716 if test -x objdump$host_exeext; then
1717 gcc_cv_objdump=./objdump$host_exeext
1718 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1719 && test -f ../binutils/Makefile; then
1720 # Single tree build which includes binutils.
1722 gcc_cv_objdump=./objdump$host_exeext
1723 rm -f objdump$host_exeext
1724 $symbolic_link ../binutils/objdump$host_exeext \
1725 objdump$host_exeext 2>/dev/null
1726 elif test "x$program_prefix" != xNONE; then
1727 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1729 gcc_cv_objdump=`echo objdump | \
1730 sed ${program_transform_name}`$host_exeext
1732 case $in_tree_objdump in
1733 yes) AC_MSG_RESULT("newly built objdump") ;;
1734 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1737 # Figure out what assembler alignment features are present.
1738 AC_MSG_CHECKING(assembler alignment features)
1739 gcc_cv_as_alignment_features=none
1740 if test $in_tree_gas = yes; then
1741 # Gas version 2.6 and later support for .balign and .p2align.
1742 gcc_GAS_VERSION_GTE_IFELSE(2,6,0,[
1743 gcc_cv_as_alignment_features=".balign and .p2align"
1744 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1746 # Gas version 2.8 and later support specifying the maximum
1747 # bytes to skip when using .p2align.
1748 gcc_GAS_VERSION_GTE_IFELSE(2,8,0,[
1749 gcc_cv_as_alignment_features=".p2align including maximum skip"
1750 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1752 elif test x$gcc_cv_as != x; then
1753 # Check if we have .balign and .p2align
1754 echo ".balign 4" > conftest.s
1755 echo ".p2align 2" >> conftest.s
1756 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1757 gcc_cv_as_alignment_features=".balign and .p2align"
1758 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1760 rm -f conftest.s conftest.o
1761 # Check if specifying the maximum bytes to skip when
1762 # using .p2align is supported.
1763 echo ".p2align 4,,7" > conftest.s
1764 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1765 gcc_cv_as_alignment_features=".p2align including maximum skip"
1766 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1768 rm -f conftest.s conftest.o
1770 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1772 AC_MSG_CHECKING(assembler subsection support)
1773 gcc_cv_as_subsections=no
1774 if test $in_tree_gas = yes ; then
1775 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
1776 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1777 gcc_cv_as_subsections="working .subsection -1"
1780 elif test x$gcc_cv_as != x; then
1781 # Check if we have .subsection
1782 echo ".subsection 1" > conftest.s
1783 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1784 gcc_cv_as_subsections=".subsection"
1785 if test x$gcc_cv_nm != x; then
1786 cat > conftest.s <<EOF
1787 conftest_label1: .word 0
1789 conftest_label2: .word 0
1792 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1793 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1794 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1795 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1798 gcc_cv_as_subsections="working .subsection -1"
1803 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1805 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1806 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1807 [Define if your assembler supports .subsection and .subsection -1 starts
1808 emitting at the beginning of your section.])
1810 AC_MSG_RESULT($gcc_cv_as_subsections)
1812 AC_MSG_CHECKING(assembler weak support)
1814 if test $in_tree_gas = yes ; then
1815 gcc_GAS_VERSION_GTE_IFELSE(2,2,0,[
1816 gcc_cv_as_weak="yes"
1818 elif test x$gcc_cv_as != x; then
1819 # Check if we have .weak
1820 echo " .weak foobar" > conftest.s
1821 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1822 gcc_cv_as_weak="yes"
1824 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1826 if test x"$gcc_cv_as_weak" = xyes; then
1827 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1829 AC_MSG_RESULT($gcc_cv_as_weak)
1831 AC_MSG_CHECKING(assembler hidden support)
1833 if test $in_tree_gas = yes ; then
1834 gcc_GAS_VERSION_GTE_IFELSE(2,12,1,[
1835 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1836 gcc_cv_as_hidden="yes"
1839 elif test x$gcc_cv_as != x; then
1840 # Check if we have .hidden
1841 echo " .hidden foobar" > conftest.s
1842 echo "foobar:" >> conftest.s
1843 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1844 gcc_cv_as_hidden="yes"
1846 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1848 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1849 # This is irritatingly difficult to feature test for. Look for
1850 # the date string after the version number.
1851 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1852 if echo "$ld_ver" | grep GNU > /dev/null; then
1854 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'`
1855 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1856 if test 0"$ld_date" -lt 20020404; then
1857 if test -n "$ld_date"; then
1858 # If there was date string, but was earlier than 2002-04-04, fail
1859 gcc_cv_as_hidden="no"
1860 elif test -z "$ld_vers"; then
1861 # If there was no date string nor ld version number, something is wrong
1862 gcc_cv_as_hidden="no"
1864 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1865 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1866 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1867 test -z "$ld_vers_patch" && ld_vers_patch=0
1868 if test "$ld_vers_major" -lt 2; then
1869 gcc_cv_as_hidden="no"
1870 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1871 gcc_cv_as_hidden="no"
1872 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1873 -a "$ld_vers_patch" -eq 0; then
1874 gcc_cv_as_hidden="no"
1883 if test x"$gnu_ld_flag" = x"no"; then
1884 # Even if using gas with .hidden support, the resulting object files
1885 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1886 # N64 linkers, the problem is that the linker refuses to accept
1887 # -call_shared (passed by default to the linker) and -r (used to
1888 # link the object file generated without .hidden directives with
1889 # one that hides symbols), so we also lose.
1894 if test x"$gcc_cv_as_hidden" = xyes; then
1895 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1896 [Define if your assembler supports .hidden.])
1898 AC_MSG_RESULT($gcc_cv_as_hidden)
1899 libgcc_visibility=$gcc_cv_as_hidden
1900 AC_SUBST(libgcc_visibility)
1902 AC_MSG_CHECKING(assembler leb128 support)
1904 if test $in_tree_gas = yes ; then
1905 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
1906 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1907 gcc_cv_as_leb128="yes"
1910 elif test x$gcc_cv_as != x; then
1911 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1912 cat > conftest.s <<EOF
1920 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1921 gcc_cv_as_leb128="yes"
1923 # GAS versions before 2.11 do not support uleb128,
1924 # despite appearing to.
1925 # ??? There exists an elf-specific test that will crash
1926 # the assembler. Perhaps it's better to figure out whether
1927 # arbitrary sections are supported and try the test.
1928 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1929 if echo "$as_ver" | grep GNU > /dev/null; then
1931 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1932 as_major=`echo $as_ver | sed 's/\..*//'`
1933 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1935 if test $as_major -eq 2 -a $as_minor -lt 11; then
1936 gcc_cv_as_leb128="no"
1940 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1942 if test x"$gcc_cv_as_leb128" = xyes; then
1943 AC_DEFINE(HAVE_AS_LEB128, 1,
1944 [Define if your assembler supports .uleb128.])
1946 AC_MSG_RESULT($gcc_cv_as_leb128)
1948 AC_MSG_CHECKING(assembler eh_frame optimization)
1949 gcc_cv_as_eh_frame=no
1950 if test $in_tree_gas = yes ; then
1951 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1952 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1953 gcc_cv_as_eh_frame="yes"
1956 elif test x$gcc_cv_as != x; then
1957 # Check if this is GAS.
1958 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1959 rm -f a.out 2> /dev/null
1960 if echo "$as_ver" | grep GNU > /dev/null; then
1961 # Versions up to and including 2.11.0 may mis-optimize
1962 # .eh_frame data. Try something.
1963 cat > conftest.s <<EOF
1970 .section .eh_frame,"aw",@progbits
1972 .4byte .LECIE1-.LSCIE1
1986 .4byte .LEFDE1-.LASFDE1
1988 .4byte .LASFDE1-__FRAME_BEGIN__
1997 cat > conftest.lit <<EOF
1998 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1999 0010 01000000 12000000 18000000 00000000 ................
2000 0020 08000000 04080000 0044 .........D
2002 cat > conftest.big <<EOF
2003 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2004 0010 00000001 00000012 00000018 00000000 ................
2005 0020 00000008 04000000 0844 .........D
2007 # If the assembler didn't choke, and we can objdump,
2008 # and we got the correct data, then succeed.
2009 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2010 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2011 | tail -3 > conftest.got \
2012 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2013 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2015 gcc_cv_as_eh_frame="yes"
2017 gcc_cv_as_eh_frame="bad"
2018 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
2019 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2020 [Define if your assembler mis-optimizes .eh_frame data.])
2026 AC_MSG_RESULT($gcc_cv_as_eh_frame)
2028 AC_MSG_CHECKING(assembler section merging support)
2029 gcc_cv_as_shf_merge=no
2030 if test $in_tree_gas = yes ; then
2031 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2032 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
2033 gcc_cv_as_shf_merge=yes
2036 elif test x$gcc_cv_as != x; then
2037 # Check if we support SHF_MERGE sections
2038 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
2039 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
2040 gcc_cv_as_shf_merge=yes
2042 rm -f conftest.s conftest.o
2044 if test x"$gcc_cv_as_shf_merge" = xyes; then
2045 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
2046 [Define if your assembler supports marking sections with SHF_MERGE flag.])
2048 AC_MSG_RESULT($gcc_cv_as_shf_merge)
2050 AC_MSG_CHECKING(assembler thread-local storage support)
2060 .section ".tdata","awT",@progbits
2063 ldq $27,__tls_get_addr($29) !literal!1
2064 lda $16,foo($29) !tlsgd!1
2065 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2066 ldq $27,__tls_get_addr($29) !literal!2
2067 lda $16,foo($29) !tlsldm!2
2068 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2069 ldq $1,foo($29) !gotdtprel
2070 ldah $2,foo($29) !dtprelhi
2071 lda $3,foo($2) !dtprello
2072 lda $4,foo($29) !dtprel
2073 ldq $1,foo($29) !gottprel
2074 ldah $2,foo($29) !tprelhi
2075 lda $3,foo($2) !tprello
2076 lda $4,foo($29) !tprel'
2083 .section ".tdata","awT",@progbits
2087 leal foo@TLSGD(,%ebx,1), %eax
2088 leal foo@TLSLDM(%ebx), %eax
2089 leal foo@DTPOFF(%eax), %edx
2090 movl foo@GOTTPOFF(%ebx), %eax
2091 subl foo@GOTTPOFF(%ebx), %eax
2092 addl foo@GOTNTPOFF(%ebx), %eax
2093 movl foo@INDNTPOFF, %eax
2094 movl $foo@TPOFF, %eax
2095 subl $foo@TPOFF, %eax
2096 leal foo@NTPOFF(%ecx), %eax'
2102 .section ".tdata","awT",@progbits
2106 leaq foo@TLSGD(%rip), %rdi
2107 leaq foo@TLSLD(%rip), %rdi
2108 leaq foo@DTPOFF(%rax), %rdx
2109 movq foo@GOTTPOFF(%rip), %rax
2110 movq $foo@TPOFF, %rax'
2116 .section ".tdata","awT",@progbits
2119 addl r16 = @ltoff(@dtpmod(foo#)), gp
2120 addl r17 = @ltoff(@dtprel(foo#)), gp
2121 addl r18 = @ltoff(@tprel(foo#)), gp
2122 addl r19 = @dtprel(foo#), gp
2123 adds r21 = @dtprel(foo#), r13
2124 movl r23 = @dtprel(foo#)
2125 addl r20 = @tprel(foo#), gp
2126 adds r22 = @tprel(foo#), r13
2127 movl r24 = @tprel(foo#)'
2133 .section ".tdata","awT",@progbits
2141 addi 3,31,ld0@got@tlsgd
2143 addi 3,31,x1@got@tlsld
2146 addis 9,3,x2@dtprel@ha
2147 addi 9,9,x2@dtprel@l
2148 lwz 9,x3@got@tprel(31)
2151 addis 9,2,x2@tprel@ha
2152 addi 9,9,x2@tprel@l'
2159 .section ".tdata","awT",@progbits
2167 addi 3,2,ld0@got@tlsgd
2173 addi 3,2,x1@got@tlsld
2179 addis 9,3,x2@dtprel@ha
2180 addi 9,9,x2@dtprel@l
2183 ld 9,x3@got@dtprel(2)
2193 .section ".tdata","awT",@progbits
2202 l %r1,foo@GOTNTPOFF(%r12)
2203 l %r1,0(%r1):tls_load:foo
2204 bas %r14,0(%r1,%r13):tls_gdcall:foo
2205 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2212 .section ".tdata","awT",@progbits
2220 lg %r1,foo@GOTNTPOFF(%r12)
2221 larl %r1,foo@INDNTPOFF
2222 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2223 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2226 tls_as_opt="-m64 -Aesame"
2229 if test -z "$tls_first_major"; then
2231 elif test $in_tree_gas = yes ; then
2232 gcc_GAS_VERSION_GTE_IFELSE($tls_first_major,$tls_first_minor,0,[
2235 elif test x$gcc_cv_as != x; then
2236 echo "$conftest_s" > conftest.s
2237 if $gcc_cv_as $tls_as_opt --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2241 rm -f conftest.s conftest.o
2243 if test "$gcc_cv_as_tls" = yes; then
2244 AC_DEFINE(HAVE_AS_TLS, 1,
2245 [Define if your assembler supports thread-local storage.])
2247 AC_MSG_RESULT($gcc_cv_as_tls)
2250 # All TARGET_ABI_OSF targets.
2251 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2252 AC_CACHE_CHECK([assembler supports explicit relocations],
2253 gcc_cv_as_explicit_relocs, [
2254 gcc_cv_as_explicit_relocs=unknown
2255 if test $in_tree_gas = yes ; then
2256 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2257 gcc_cv_as_explicit_relocs=yes
2259 elif test x$gcc_cv_as != x; then
2260 cat > conftest.s << 'EOF'
2263 extbl $3, $2, $3 !lituse_bytoff!1
2264 ldq $2, a($29) !literal!1
2265 ldq $4, b($29) !literal!2
2266 ldq_u $3, 0($2) !lituse_base!1
2267 ldq $27, f($29) !literal!5
2268 jsr $26, ($27), f !lituse_jsr!5
2269 ldah $29, 0($26) !gpdisp!3
2270 lda $0, c($29) !gprel
2271 ldah $1, d($29) !gprelhigh
2272 lda $1, d($1) !gprellow
2273 lda $29, 0($29) !gpdisp!3
2275 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2276 gcc_cv_as_explicit_relocs=yes
2278 gcc_cv_as_explicit_relocs=no
2280 rm -f conftest.s conftest.o
2283 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2284 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2285 [Define if your assembler supports explicit relocations.])
2289 AC_CACHE_CHECK([assembler .register pseudo-op support],
2290 gcc_cv_as_register_pseudo_op, [
2291 gcc_cv_as_register_pseudo_op=unknown
2292 if test x$gcc_cv_as != x; then
2293 # Check if we have .register
2294 echo ".register %g2, #scratch" > conftest.s
2295 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2296 gcc_cv_as_register_pseudo_op=yes
2298 gcc_cv_as_register_pseudo_op=no
2300 rm -f conftest.s conftest.o
2303 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2304 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2305 [Define if your assembler supports .register.])
2308 AC_CACHE_CHECK([assembler supports -relax],
2309 gcc_cv_as_relax_opt, [
2310 gcc_cv_as_relax_opt=unknown
2311 if test x$gcc_cv_as != x; then
2312 # Check if gas supports -relax
2313 echo ".text" > conftest.s
2314 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2315 gcc_cv_as_relax_opt=yes
2317 gcc_cv_as_relax_opt=no
2319 rm -f conftest.s conftest.o
2322 if test "x$gcc_cv_as_relax_opt" = xyes; then
2323 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2324 [Define if your assembler supports -relax option.])
2327 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2328 gcc_cv_as_sparc_ua_pcrel, [
2329 gcc_cv_as_sparc_ua_pcrel=unknown
2330 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2331 gcc_cv_as_sparc_ua_pcrel=no
2332 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2333 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2334 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2335 gcc_cv_as_sparc_ua_pcrel=yes
2337 rm -f conftest.s conftest.o conftest
2340 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2341 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2342 [Define if your assembler and linker support unaligned PC relative relocs.])
2345 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2346 gcc_cv_as_sparc_ua_pcrel_hidden, [
2347 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2348 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2349 if test x$gcc_cv_objdump != x; then
2350 gcc_cv_as_sparc_ua_pcrel_hidden=no
2351 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2352 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2353 echo "foo: .skip 4" >> conftest.s
2354 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2355 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2356 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2357 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2358 if $gcc_cv_objdump -R conftest 2> /dev/null \
2359 | grep 'DISP32' > /dev/null 2>&1; then
2362 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2366 rm -f conftest.s conftest.o conftest
2368 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2371 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2372 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2373 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2376 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2377 gcc_cv_as_offsetable_lo10, [
2378 gcc_cv_as_offsetable_lo10=unknown
2379 if test "x$gcc_cv_as" != x; then
2380 # Check if assembler has offsetable %lo()
2381 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2382 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2383 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2385 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2386 > /dev/null 2>&1; then
2387 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2388 gcc_cv_as_offsetable_lo10=no
2390 gcc_cv_as_offsetable_lo10=yes
2393 gcc_cv_as_offsetable_lo10=no
2395 rm -f conftest.s conftest.o conftest1.s conftest1.o
2398 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2399 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2400 [Define if your assembler supports offsetable %lo().])
2406 i[34567]86-*-* | x86_64-*-*)
2408 AC_MSG_CHECKING(assembler instructions)
2409 gcc_cv_as_instructions=
2410 if test $in_tree_gas = yes ; then
2411 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
2412 gcc_cv_as_instructions="filds fists"
2414 elif test x$gcc_cv_as != x; then
2415 set "filds fists" "filds mem; fists mem"
2418 echo "$2" > conftest.s
2419 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2420 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2424 rm -f conftest.s conftest.o
2426 if test x"$gcc_cv_as_instructions" != x; then
2427 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2429 AC_MSG_RESULT($gcc_cv_as_instructions)
2431 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2432 gcc_cv_as_gotoff_in_data=no
2433 if test $in_tree_gas = yes ; then
2434 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2435 gcc_cv_as_gotoff_in_data=yes
2437 elif test x$gcc_cv_as != x; then
2438 cat > conftest.s <<EOF
2445 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2446 gcc_cv_as_gotoff_in_data=yes
2449 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2450 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2451 [Define true if the assembler supports '.long foo@GOTOFF'.])
2452 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2456 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2457 gcc_cv_as_ltoffx_ldxmov_relocs, [
2458 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2459 if test $in_tree_gas = yes ; then
2460 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2461 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2463 elif test x$gcc_cv_as != x; then
2464 cat > conftest.s << 'EOF'
2467 addl r15 = @ltoffx(x#), gp
2469 ld8.mov r16 = [r15], x#
2472 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2473 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2475 gcc_cv_as_ltoffx_ldxmov_relocs=no
2477 rm -f conftest.s conftest.o
2480 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2481 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2482 [Define if your assembler supports ltoffx and ldxmov relocations.])
2487 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2488 gcc_cv_as_dwarf2_debug_line=no
2489 # ??? Not all targets support dwarf2 debug_line, even within a version
2490 # of gas. Moreover, we need to emit a valid instruction to trigger any
2491 # info to the output file. So, as supported targets are added to gas 2.11,
2492 # add some instruction here to (also) show we expect this might work.
2493 # ??? Once 2.11 is released, probably need to add first known working
2494 # version to the per-target configury.
2496 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2497 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* | xstormy16*-*-*)
2504 if test $in_tree_gas = yes ; then
2505 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2506 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2507 && test x"$insn" != x ; then
2508 gcc_cv_as_dwarf2_debug_line="yes"
2511 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2512 echo ' .file 1 "conftest.s"' > conftest.s
2513 echo ' .loc 1 3 0' >> conftest.s
2514 echo " $insn" >> conftest.s
2515 # ??? This fails with non-gnu grep.
2516 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2517 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2518 # The .debug_line file table must be in the exact order that
2519 # we specified the files, since these indices are also used
2520 # by DW_AT_decl_file. Approximate this test by testing if
2521 # the assembler bitches if the same index is assigned twice.
2522 echo ' .file 1 "foo.s"' > conftest.s
2523 echo ' .file 1 "bar.s"' >> conftest.s
2524 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2526 gcc_cv_as_dwarf2_debug_line="no"
2528 gcc_cv_as_dwarf2_debug_line="yes"
2531 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2533 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2534 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2535 [Define if your assembler supports dwarf2 .file/.loc directives,
2536 and preserves file table indices exactly as given.])
2538 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2540 AC_MSG_CHECKING(assembler --gdwarf2 support)
2541 gcc_cv_as_gdwarf2_flag=no
2542 if test $in_tree_gas = yes ; then
2543 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2544 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2545 && test x"$insn" != x ; then
2546 gcc_cv_as_gdwarf2_flag="yes"
2549 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2550 echo '' > conftest.s
2551 # ??? This fails with non-gnu grep.
2552 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2554 gcc_cv_as_gdwarf2_flag="yes"
2556 rm -f conftest.s conftest.o
2558 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2559 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2560 [Define if your assembler supports the --gdwarf2 option.])
2562 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2564 AC_MSG_CHECKING(assembler --gstabs support)
2565 gcc_cv_as_gstabs_flag=no
2566 if test $in_tree_gas = yes ; then
2567 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2568 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2569 && test x"$insn" != x ; then
2570 gcc_cv_as_gstabs_flag="yes"
2573 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2574 echo '' > conftest.s
2575 # ??? This fails with non-gnu grep.
2576 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2577 gcc_cv_as_gstabs_flag="yes"
2579 rm -f conftest.s conftest.o
2581 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2582 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2583 [Define if your assembler supports the --gstabs option.])
2585 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2587 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2588 gcc_cv_ld_ro_rw_mix=unknown
2589 if test $in_tree_ld = yes ; then
2590 if test "$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
2591 gcc_cv_ld_ro_rw_mix=read-write
2593 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2594 echo '.section myfoosect, "a"' > conftest1.s
2595 echo '.section myfoosect, "aw"' > conftest2.s
2596 echo '.byte 1' >> conftest2.s
2597 echo '.section myfoosect, "a"' > conftest3.s
2598 echo '.byte 0' >> conftest3.s
2599 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2600 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2601 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2602 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2603 conftest2.o conftest3.o > /dev/null 2>&1; then
2604 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2605 | sed -e '/myfoosect/!d' -e N`
2606 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2607 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2608 gcc_cv_ld_ro_rw_mix=read-only
2610 gcc_cv_ld_ro_rw_mix=read-write
2615 rm -f conftest.* conftest[123].*
2618 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2619 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2620 [Define if your linker links a mix of read-only
2621 and read-write sections into a read-write section.])
2623 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2625 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2626 gcc_cv_ld_eh_frame_hdr=no
2627 if test $in_tree_ld = yes ; then
2628 if test "$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
2629 gcc_cv_ld_eh_frame_hdr=yes
2631 elif test x$gcc_cv_ld != x; then
2632 # Check if linker supports --eh-frame-hdr option
2633 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2634 gcc_cv_ld_eh_frame_hdr=yes
2637 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2638 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2639 [Define if your linker supports --eh-frame-hdr option.])
2641 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2643 AC_MSG_CHECKING(linker position independent executable support)
2645 if test $in_tree_ld = yes ; then
2646 if test "$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
2649 elif test x$gcc_cv_ld != x; then
2650 # Check if linker supports -pie option
2651 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2655 if test x"$gcc_cv_ld_pie" = xyes; then
2656 AC_DEFINE(HAVE_LD_PIE, 1,
2657 [Define if your linker supports -pie option.])
2659 AC_MSG_RESULT($gcc_cv_ld_pie)
2661 # Miscellaneous target-specific checks.
2664 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2665 gcc_cv_mips_libgloss_startup=no
2666 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2667 if test "x$exec_prefix" = xNONE; then
2668 if test "x$prefix" = xNONE; then
2669 test_prefix=/usr/local
2674 test_prefix=$exec_prefix
2676 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2678 if grep '^STARTUP' $f > /dev/null 2>&1; then
2679 gcc_cv_mips_libgloss_startup=yes
2683 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2684 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2685 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2687 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2689 AC_MSG_CHECKING(whether the assembler has explicit relocation support)
2690 if test x$gcc_cv_mips_explicit_relocs = x; then
2691 gcc_cv_mips_explicit_relocs=no
2692 if test x$gcc_cv_as != x; then
2693 echo ' lw $4,%gp_rel(foo)($4)' > conftest.s
2694 if $gcc_cv_as conftest.s -o conftest.o > /dev/null 2>&1; then
2695 gcc_cv_mips_explicit_relocs=yes
2697 rm -f conftest.s conftest.o
2700 if test $gcc_cv_mips_explicit_relocs = yes; then
2701 test x$target_cpu_default != x || target_cpu_default=0
2702 target_cpu_default="(${target_cpu_default}|MASK_EXPLICIT_RELOCS)"
2704 AC_MSG_RESULT($gcc_cv_mips_explicit_relocs)
2708 if test x$with_sysroot = x && test x$host = x$target \
2709 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2710 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2713 # Figure out what language subdirectories are present.
2714 # Look if the user specified --enable-languages="..."; if not, use
2715 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2717 # NB: embedded tabs in this IF block -- do not untabify
2718 if test x"${enable_languages+set}" != xset; then
2719 if test x"${LANGUAGES+set}" = xset; then
2720 enable_languages="${LANGUAGES}"
2721 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2724 enable_languages=all
2727 if test x"${enable_languages}" = x \
2728 || test x"${enable_languages}" = xyes;
2730 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2733 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2735 # First scan to see if an enabled language requires some other language.
2736 # We assume that a given config-lang.in will list all the language
2737 # front ends it requires, even if some are required indirectly.
2738 for lang in ${srcdir}/*/config-lang.in ..
2743 # The odd quoting in the next line works around
2744 # an apparent bug in bash 1.12 on linux.
2746 ${srcdir}/[*]/config-lang.in)
2749 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2750 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2751 for other in $this_lang_requires
2753 case ,${enable_languages}, in
2759 enable_languages="$enable_languages,$other"
2768 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2771 for lang in ${srcdir}/*/config-lang.in ..
2775 # The odd quoting in the next line works around
2776 # an apparent bug in bash 1.12 on linux.
2778 ${srcdir}/[*]/config-lang.in) ;;
2780 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2781 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2782 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2783 if test "x$lang_alias" = x
2785 echo "$lang doesn't set \$language." 1>&2
2788 case ${build_by_default},${enable_languages}, in
2789 *,$lang_alias,*) add_this_lang=yes ;;
2790 no,*) add_this_lang=no ;;
2791 *,all,*) add_this_lang=yes ;;
2792 *) add_this_lang=no ;;
2794 found_languages="${found_languages} ${lang_alias}"
2795 if test x"${add_this_lang}" = xyes; then
2797 ${srcdir}/ada/config-lang.in)
2798 if test x$have_gnat = xyes ; then
2799 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2803 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2813 for expected_language in ${expected_languages} ..
2815 if test "${expected_language}" != ..; then
2816 missing_language="${expected_language}"
2817 if test "${expected_language}" = "c" \
2818 || test "${expected_language}" = "all"; then
2821 for found_language in ${found_languages} ..
2823 if test "${found_language}" != ..; then
2824 if test "${expected_language}" = "${found_language}"; then
2829 if test "x${missing_language}" != x; then
2830 missing_languages="${missing_languages} ${missing_language}"
2835 if test "x$missing_languages" != x; then
2837 The following requested languages were not found:${missing_languages}
2838 The following languages were available: c${found_languages}])
2841 # Make gthr-default.h if we have a thread file.
2843 if test $thread_file != single; then
2844 rm -f gthr-default.h
2845 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2846 gthread_flags=-DHAVE_GTHR_DEFAULT
2848 AC_SUBST(gthread_flags)
2850 # Find out what GC implementation we want, or may, use.
2852 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2859 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2864 echo "Using $GGC for garbage collection."
2866 # Use the system's zlib library.
2868 zlibinc="-I\$(srcdir)/../zlib"
2869 AC_ARG_WITH(system-zlib,
2870 [ --with-system-zlib use installed libz],
2877 dnl Very limited version of automake's enable-maintainer-mode
2879 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2880 dnl maintainer-mode is disabled by default
2881 AC_ARG_ENABLE(maintainer-mode,
2882 [ --enable-maintainer-mode
2883 enable make rules and dependencies not useful
2884 (and sometimes confusing) to the casual installer],
2885 maintainer_mode=$enableval,
2888 AC_MSG_RESULT($maintainer_mode)
2890 if test "$maintainer_mode" = "yes"; then
2897 # Make empty files to contain the specs and options for each language.
2898 # Then add #include lines to for a compiler that has specs and/or options.
2903 for subdir in . $subdirs
2905 if test -f $srcdir/$subdir/lang-specs.h; then
2906 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2908 if test -f $srcdir/$subdir/lang-options.h; then
2909 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2911 if test -f $srcdir/$subdir/$subdir-tree.def; then
2912 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2916 # These (without "all_") are set in each config-lang.in.
2917 # `language' must be a single word so is spelled singularly.
2922 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2923 # List of language makefile fragments.
2925 # Files for gengtype
2926 all_gtfiles="$target_gtfiles"
2927 # Files for gengtype with language
2928 all_gtfiles_files_langs=
2929 all_gtfiles_files_files=
2931 # Add the language fragments.
2932 # Languages are added via two mechanisms. Some information must be
2933 # recorded in makefile variables, these are defined in config-lang.in.
2934 # We accumulate them and plug them into the main Makefile.
2935 # The other mechanism is a set of hooks for each of the main targets
2936 # like `clean', `install', etc.
2938 language_fragments="Make-lang"
2939 language_hooks="Make-hooks"
2941 for s in .. $subdirs
2951 . ${srcdir}/$s/config-lang.in
2952 if test "x$language" = x
2954 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2957 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2958 if test -f ${srcdir}/$s/Makefile.in
2959 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2961 all_languages="$all_languages $language"
2962 if test "x$boot_language" = xyes
2964 all_boot_languages="$all_boot_languages $language"
2966 all_compilers="$all_compilers $compilers"
2967 all_stagestuff="$all_stagestuff $stagestuff"
2968 all_outputs="$all_outputs $outputs"
2969 all_gtfiles="$all_gtfiles $gtfiles"
2970 for f in .. $gtfiles
2974 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2975 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2981 # Pick up gtfiles for c
2984 . ${srcdir}/c-config-lang.in
2985 all_gtfiles="$all_gtfiles $gtfiles"
2986 for f in .. $gtfiles
2990 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2991 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2996 for language in .. $all_languages
2998 if test $language != ".."
3000 check_languages="$check_languages check-$language"
3004 # Since we can't use `::' targets, we link each language in
3005 # with a set of hooks, reached indirectly via lang.${target}.
3009 target_list="all.build all.cross start.encap rest.encap tags \
3010 info dvi generated-manpages \
3011 install-normal install-common install-info install-man \
3013 mostlyclean clean distclean extraclean maintainer-clean \
3014 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3015 for t in $target_list
3018 for lang in .. $all_languages
3020 if test $lang != ".."; then
3024 echo "lang.$t: $x" >> Make-hooks
3029 echo "dir ." > .gdbinit
3030 echo "dir ${srcdir}" >> .gdbinit
3031 if test x$gdb_needs_out_file_path = xyes
3033 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3035 if test "x$subdirs" != x; then
3038 echo "dir ${srcdir}/$s" >> .gdbinit
3041 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3043 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3044 # absolute path for gcc_tooldir based on inserting the number of up-directory
3045 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3046 # $(libsubdir)/@(unlibsubdir) based path.
3047 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3048 # make and thus we'd get different behavior depending on where we built the
3050 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3051 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
3053 changequote(<<, >>)dnl
3054 # An explanation of the sed strings:
3055 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3056 # -e 's|/$||' match a trailing forward slash and eliminates it
3057 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3058 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3060 # (*) Note this pattern overwrites the first character of the string
3061 # with a forward slash if one is not already present. This is not a
3062 # problem because the exact names of the sub-directories concerned is
3063 # unimportant, just the number of them matters.
3065 # The practical upshot of these patterns is like this:
3067 # prefix exec_prefix result
3068 # ------ ----------- ------
3070 # /foo/ /foo/bar ../
3071 # /foo /foo/bar/ ../
3072 # /foo/ /foo/bar/ ../
3073 # /foo /foo/bar/ugg ../../
3076 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
3077 changequote([, ])dnl
3079 AC_SUBST(gcc_tooldir)
3082 # Find a directory in which to install a shared libgcc.
3084 AC_ARG_ENABLE(version-specific-runtime-libs,
3085 [ --enable-version-specific-runtime-libs
3086 specify that runtime libraries should be
3087 installed in a compiler-specific directory])
3089 AC_ARG_WITH(slibdir,
3090 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3091 slibdir="$with_slibdir",
3092 if test "${enable_version_specific_runtime_libs+set}" = set; then
3093 slibdir='$(libsubdir)'
3094 elif test "$host" != "$target"; then
3095 slibdir='$(build_tooldir)/lib'
3101 objdir=`${PWDCMD-pwd}`
3104 # Process the language and host/target makefile fragments.
3105 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
3107 # Substitute configuration variables
3110 AC_SUBST(all_boot_languages)
3111 AC_SUBST(all_compilers)
3112 AC_SUBST(all_gtfiles)
3113 AC_SUBST(all_gtfiles_files_langs)
3114 AC_SUBST(all_gtfiles_files_files)
3115 AC_SUBST(all_lang_makefiles)
3116 AC_SUBST(all_languages)
3117 AC_SUBST(all_stagestuff)
3118 AC_SUBST(build_exeext)
3119 AC_SUBST(build_install_headers_dir)
3120 AC_SUBST(build_xm_file_list)
3121 AC_SUBST(build_xm_file)
3122 AC_SUBST(build_xm_defines)
3123 AC_SUBST(check_languages)
3124 AC_SUBST(cc_set_by_configure)
3125 AC_SUBST(quoted_cc_set_by_configure)
3126 AC_SUBST(cpp_install_dir)
3127 AC_SUBST(dep_host_xmake_file)
3128 AC_SUBST(dep_tmake_file)
3129 AC_SUBST(extra_headers_list)
3130 AC_SUBST(extra_objs)
3131 AC_SUBST(extra_parts)
3132 AC_SUBST(extra_passes)
3133 AC_SUBST(extra_programs)
3134 AC_SUBST(float_h_file)
3135 AC_SUBST(gcc_config_arguments)
3136 AC_SUBST(gcc_gxx_include_dir)
3137 AC_SUBST(libstdcxx_incdir)
3138 AC_SUBST(gcc_version)
3139 AC_SUBST(gcc_version_full)
3140 AC_SUBST(gcc_version_trigger)
3141 AC_SUBST(host_exeext)
3142 AC_SUBST(host_extra_gcc_objs)
3143 AC_SUBST(host_xm_file_list)
3144 AC_SUBST(host_xm_file)
3145 AC_SUBST(host_xm_defines)
3146 AC_SUBST(out_host_hook_obj)
3148 AC_SUBST(lang_options_files)
3149 AC_SUBST(lang_specs_files)
3150 AC_SUBST(lang_tree_files)
3151 AC_SUBST(local_prefix)
3153 AC_SUBST(objc_boehm_gc)
3155 AC_SUBST(out_object_file)
3156 AC_SUBST(stage_prefix_set_by_configure)
3157 AC_SUBST(quoted_stage_prefix_set_by_configure)
3158 AC_SUBST(symbolic_link)
3159 AC_SUBST(thread_file)
3160 AC_SUBST(tm_file_list)
3162 AC_SUBST(tm_defines)
3163 AC_SUBST(tm_p_file_list)
3166 AC_SUBST(xm_defines)
3167 AC_SUBST(target_alias)
3168 AC_SUBST(c_target_objs)
3169 AC_SUBST(cxx_target_objs)
3170 AC_SUBST(target_cpu_default)
3172 AC_SUBST_FILE(target_overrides)
3173 AC_SUBST_FILE(host_overrides)
3174 AC_SUBST_FILE(language_fragments)
3175 AC_SUBST_FILE(language_hooks)
3177 # Echo that links are built
3178 if test x$host = x$target
3186 if test x$host != x$build
3188 str3=" on a $build system"
3191 if test "x$str2" != x || test "x$str3" != x
3196 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3198 if test "x$str2" != x || test "x$str3" != x
3200 echo " ${str2}${str3}." 1>&2
3203 # Truncate the target if necessary
3204 if test x$host_truncate_target != x; then
3205 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
3208 # Configure the subdirectories
3209 # AC_CONFIG_SUBDIRS($subdirs)
3211 # Create the Makefile
3212 # and configure language subdirectories
3213 AC_OUTPUT($all_outputs,
3215 case x$CONFIG_HEADERS in
3216 xauto-host.h:config.in)
3219 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3220 # bootstrapping and the installation procedure can still use
3221 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3222 # FLAGS_TO_PASS has been modified to solve the problem there.
3223 # This is virtually a duplicate of what happens in configure.lang; we do
3224 # an extra check to make sure this only happens if ln -s can be used.
3225 if test "$symbolic_link" = "ln -s"; then
3226 for d in .. ${subdirs} fixinc ; do
3227 if test $d != ..; then
3228 STARTDIR=`${PWDCMD-pwd}`
3230 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3233 $symbolic_link ../$t $t 2>/dev/null
3239 # Avoid having to add intl to our include paths.
3240 if test -f intl/libintl.h; then
3241 echo creating libintl.h
3242 echo '#include "intl/libintl.h"' >libintl.h
3246 symbolic_link='$symbolic_link'