2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003
5 # Free Software Foundation, Inc.
7 #This file is part of GCC.
9 #GCC is free software; you can redistribute it and/or modify it under
10 #the terms of the GNU General Public License as published by the Free
11 #Software Foundation; either version 2, or (at your option) any later
14 #GCC is distributed in the hope that it will be useful, but WITHOUT
15 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 #You should have received a copy of the GNU General Public License
20 #along with GCC; see the file COPYING. If not, write to the Free
21 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 # --------------------------------
25 # Initialization and sanity checks
26 # --------------------------------
30 AC_CONFIG_HEADER(auto-host.h:config.in)
32 # Determine the host, build, and target systems
35 # Determine the target- and build-specific subdirectories
38 # Set program_transform_name
41 # Check for bogus environment variables.
42 # Test if LIBRARY_PATH contains the notation for the current directory
43 # since this would lead to problems installing/building glibc.
44 # LIBRARY_PATH contains the current directory if one of the following
46 # - one of the terminals (":" and ";") is the first or last sign
47 # - two terminals occur directly after each other
48 # - the path contains an element with a dot in it
49 AC_MSG_CHECKING(LIBRARY_PATH variable)
51 case ${LIBRARY_PATH} in
52 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
53 library_path_setting="contains current directory"
56 library_path_setting="ok"
60 AC_MSG_RESULT($library_path_setting)
61 if test "$library_path_setting" != "ok"; then
63 *** LIBRARY_PATH shouldn't contain the current directory when
64 *** building gcc. Please change the environment variable
65 *** and run configure again.])
68 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
69 # since this would lead to problems installing/building glibc.
70 # GCC_EXEC_PREFIX contains the current directory if one of the following
72 # - one of the terminals (":" and ";") is the first or last sign
73 # - two terminals occur directly after each other
74 # - the path contains an element with a dot in it
75 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
77 case ${GCC_EXEC_PREFIX} in
78 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
79 gcc_exec_prefix_setting="contains current directory"
82 gcc_exec_prefix_setting="ok"
86 AC_MSG_RESULT($gcc_exec_prefix_setting)
87 if test "$gcc_exec_prefix_setting" != "ok"; then
89 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
90 *** building gcc. Please change the environment variable
91 *** and run configure again.])
98 # Specify the local prefix
100 AC_ARG_WITH(local-prefix,
101 [ --with-local-prefix=DIR specifies directory to put local include],
102 [case "${withval}" in
103 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
105 *) local_prefix=$with_local_prefix ;;
108 # Default local prefix if it is empty
109 if test x$local_prefix = x; then
110 local_prefix=/usr/local
113 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
114 # passed in by the toplevel make and thus we'd get different behavior
115 # depending on where we built the sources.
117 # Specify the g++ header file directory
118 AC_ARG_WITH(gxx-include-dir,
119 [ --with-gxx-include-dir=DIR
120 specifies directory to put g++ header files],
121 [case "${withval}" in
122 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
124 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
127 if test x${gcc_gxx_include_dir} = x; then
128 if test x${enable_version_specific_runtime_libs} = xyes; then
129 gcc_gxx_include_dir='${libsubdir}/include/c++'
131 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
132 changequote(<<, >>)dnl
133 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
138 AC_ARG_WITH(cpp_install_dir,
139 [ --with-cpp-install-dir=DIR
140 install the user visible C preprocessor in DIR
141 (relative to PREFIX) as well as PREFIX/bin],
142 [if test x$withval = xyes; then
143 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
144 elif test x$withval != xno; then
145 cpp_install_dir=$withval
148 # -------------------
149 # Find default linker
150 # -------------------
154 [ --with-gnu-ld arrange to work with GNU ld.],
155 gnu_ld_flag="$with_gnu_ld",
158 # With pre-defined ld
160 [ --with-ld arrange to use the specified ld (full pathname)],
161 DEFAULT_LINKER="$with_ld")
162 if test x"${DEFAULT_LINKER+set}" = x"set"; then
163 if test ! -x "$DEFAULT_LINKER"; then
164 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
165 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
168 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
169 [Define to enable the use of a default linker.])
172 AC_MSG_CHECKING([whether a default linker was specified])
173 if test x"${DEFAULT_LINKER+set}" = x"set"; then
174 if test x"$gnu_ld_flag" = x"no"; then
175 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
177 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
183 # ----------------------
184 # Find default assembler
185 # ----------------------
189 [ --with-gnu-as arrange to work with GNU as],
190 gas_flag="$with_gnu_as",
194 [ --with-as arrange to use the specified as (full pathname)],
195 DEFAULT_ASSEMBLER="$with_as")
196 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
197 if test ! -x "$DEFAULT_ASSEMBLER"; then
198 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
199 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
202 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
203 [Define to enable the use of a default assembler.])
206 AC_MSG_CHECKING([whether a default assembler was specified])
207 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
208 if test x"$gas_flag" = x"no"; then
209 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
211 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
221 # Find the native compiler
224 # autoconf is lame and doesn't give us any substitution variable for this.
225 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
226 NO_MINUS_C_MINUS_O=yes
228 OUTPUT_OPTION='-o $@'
230 AC_SUBST(NO_MINUS_C_MINUS_O)
231 AC_SUBST(OUTPUT_OPTION)
233 # -------------------------
234 # Check C compiler features
235 # -------------------------
237 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
238 ac_cv_prog_cc_no_long_long,
239 [save_CFLAGS="$CFLAGS"
240 CFLAGS="-Wno-long-long"
241 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
242 ac_cv_prog_cc_no_long_long=no)
243 CFLAGS="$save_CFLAGS"])
251 # sizeof(char) is 1 by definition.
252 AC_COMPILE_CHECK_SIZEOF(short)
253 AC_COMPILE_CHECK_SIZEOF(int)
254 AC_COMPILE_CHECK_SIZEOF(long)
255 if test $ac_cv_c_long_long = yes; then
256 AC_COMPILE_CHECK_SIZEOF(long long)
258 if test $ac_cv_c___int64 = yes; then
259 AC_COMPILE_CHECK_SIZEOF(__int64)
266 # See if GNAT has been installed
269 if test x$have_gnat != xno ; then
270 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
271 ac_cv_prog_adac_no_long_long,
272 [cat >conftest.adb <<EOF
273 procedure conftest is begin null; end conftest;
275 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
276 ac_cv_prog_adac_no_long_long=yes
278 ac_cv_prog_adac_no_long_long=no
282 ac_cv_prog_adac_no_long_long=yes
285 # ---------------------
286 # Warnings and checking
287 # ---------------------
290 if test $ac_cv_prog_cc_no_long_long = yes && \
291 test $ac_cv_prog_adac_no_long_long = yes ; then
292 strict1_warn="-pedantic -Wno-long-long"
294 AC_SUBST(strict1_warn)
296 # If the native compiler is GCC, we can enable warnings even in stage1.
297 # That's useful for people building cross-compilers, or just running a
300 if test "x$GCC" = "xyes"; then
301 warn_cflags='$(GCC_WARN_CFLAGS)'
303 AC_SUBST(warn_cflags)
305 # Enable -Werror in bootstrap stage2 and later.
306 # Change the default to "no" on release branches.
307 AC_ARG_ENABLE(werror,
308 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
310 if test x$enable_werror = xyes ; then
315 # Enable expensive internal checks
316 AC_ARG_ENABLE(checking,
317 [ --enable-checking[=LIST]
318 enable expensive run-time checks. With LIST,
319 enable only specific categories of checks.
320 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
321 default is misc,tree,gc,rtlflag],
327 ac_gc_always_collect=
328 case "${enableval}" in
329 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
330 ac_rtlflag_checking=1 ;;
332 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
333 set fnord $enableval; shift
338 misc) ac_checking=1 ;;
339 tree) ac_tree_checking=1 ;;
340 rtlflag) ac_rtlflag_checking=1 ;;
341 rtl) ac_rtl_checking=1 ;;
342 gc) ac_gc_checking=1 ;;
343 gcac) ac_gc_always_collect=1 ;;
344 valgrind) ac_checking_valgrind=1 ;;
345 *) AC_MSG_ERROR(unknown check category $check) ;;
351 # Enable some checks by default for development versions of GCC
352 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
354 if test x$ac_checking != x ; then
355 AC_DEFINE(ENABLE_CHECKING, 1,
356 [Define if you want more run-time sanity checks. This one gets a grab
357 bag of miscellaneous but relatively cheap checks.])
358 nocommon_flag=-fno-common
360 AC_SUBST(nocommon_flag)
361 if test x$ac_tree_checking != x ; then
362 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
363 [Define if you want all operations on trees (the basic data
364 structure of the front ends) to be checked for dynamic type safety
365 at runtime. This is moderately expensive.])
367 if test x$ac_rtl_checking != x ; then
368 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
369 [Define if you want all operations on RTL (the basic data structure
370 of the optimizer and back end) to be checked for dynamic type safety
371 at runtime. This is quite expensive.])
373 if test x$ac_rtlflag_checking != x ; then
374 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
375 [Define if you want RTL flag accesses to be checked against the RTL
376 codes that are supported for each access macro. This is relatively
379 if test x$ac_gc_checking != x ; then
380 AC_DEFINE(ENABLE_GC_CHECKING, 1,
381 [Define if you want the garbage collector to do object poisoning and
382 other memory allocation checks. This is quite expensive.])
384 if test x$ac_gc_always_collect != x ; then
385 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
386 [Define if you want the garbage collector to operate in maximally
387 paranoid mode, validating the entire heap and collecting garbage at
388 every opportunity. This is extremely expensive.])
390 valgrind_path_defines=
392 if test x$ac_checking_valgrind != x ; then
393 # It is certainly possible that there's valgrind but no valgrind.h.
394 # GCC relies on making annotations so we must have both.
395 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
397 [#include <memcheck.h>
398 #ifndef VALGRIND_DISCARD
399 #error VALGRIND_DISCARD not defined
401 [gcc_cv_header_memcheck_h=yes],
402 gcc_cv_header_memcheck_h=no)
403 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
404 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
405 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
406 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
407 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
408 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
410 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
411 valgrind_command="$valgrind_path -q"
412 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
413 [Define if you want to run subprograms and generated programs
414 through valgrind (a memory checker). This is extremely expensive.])
415 if test $gcc_cv_header_memcheck_h = yes; then
416 AC_DEFINE(HAVE_MEMCHECK_H, 1,
417 [Define if valgrind's memcheck.h header is installed.])
420 AC_SUBST(valgrind_path_defines)
421 AC_SUBST(valgrind_command)
423 # Enable code coverage collection
424 AC_ARG_ENABLE(coverage,
425 [ --enable-coverage[=LEVEL]
426 enable compiler\'s code coverage collection.
427 Use to measure compiler performance and locate
428 unused parts of the compiler. With LEVEL, specify
429 optimization. Values are opt, noopt,
431 [case "${enableval}" in
433 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
436 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
439 AC_MSG_ERROR(unknown coverage setting $enableval)
443 AC_SUBST(coverage_flags)
445 # -------------------------------
446 # Miscenalleous configure options
447 # -------------------------------
451 [ --with-stabs arrange to use stabs instead of host debug format],
457 [ --with-elf arrange to use ELF instead of host debug format],
461 # Determine whether or not multilibs are enabled.
462 AC_ARG_ENABLE(multilib,
463 [ --enable-multilib enable library support for multiple ABIs],
464 [], [enable_multilib=yes])
465 AC_SUBST(enable_multilib)
467 # Enable __cxa_atexit for C++.
468 AC_ARG_ENABLE(__cxa_atexit,
469 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
473 # Pass with no value to take the default
474 # Pass with a value to specify a thread package
475 AC_ARG_ENABLE(threads,
476 [ --enable-threads enable thread usage for target GCC
477 --enable-threads=LIB use LIB thread package for target GCC],,
480 enable_threads_flag=$enable_threads
481 # Check if a valid thread package
482 case x${enable_threads_flag} in
485 target_thread_file='single'
489 target_thread_file=''
491 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
492 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
493 target_thread_file=$enable_threads_flag
496 echo "$enable_threads is an unknown thread package" 1>&2
501 AC_ARG_ENABLE(objc-gc,
502 [ --enable-objc-gc enable the use of Boehm's garbage collector with
503 the GNU Objective-C runtime],
504 if test x$enable_objc_gc = xno; then
512 [ --with-dwarf2 force the default debug format to be DWARF 2],
513 dwarf2="$with_dwarf2",
516 AC_ARG_ENABLE(shared,
517 [ --disable-shared don't provide a shared libgcc],
519 case $enable_shared in
523 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
524 for pkg in $enableval; do
525 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
532 ], [enable_shared=yes])
533 AC_SUBST(enable_shared)
536 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
538 case ${with_sysroot} in
539 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
540 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
543 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
544 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
546 if test "x$exec_prefix" = xNONE; then
547 if test "x$prefix" = xNONE; then
548 test_prefix=/usr/local
553 test_prefix=$exec_prefix
555 case ${TARGET_SYSTEM_ROOT} in
556 "${test_prefix}"|"${test_prefix}/"*|\
557 '${exec_prefix}'|'${exec_prefix}/'*)
558 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
559 TARGET_SYSTEM_ROOT_DEFINE="$t"
564 TARGET_SYSTEM_ROOT_DEFINE=
565 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
567 AC_SUBST(TARGET_SYSTEM_ROOT)
568 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
569 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
571 # -------------------------
572 # Checks for other programs
573 # -------------------------
577 # Find some useful tools
584 # See if we have the mktemp command.
585 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
587 # Do we have a single-tree copy of texinfo?
588 if test -f $srcdir/../texinfo/Makefile.in; then
589 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
590 gcc_cv_prog_makeinfo_modern=yes
591 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
593 # See if makeinfo has been installed and is modern enough
594 # that we can use it.
595 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
596 [GNU texinfo.* \([0-9][0-9.]*\)],
600 if test $gcc_cv_prog_makeinfo_modern = no; then
602 *** Makeinfo is missing or too old.
603 *** Info documentation will not be built.])
606 BUILD_INFO=info AC_SUBST(BUILD_INFO)
609 # Is pod2man recent enough to regenerate manpages?
610 AC_MSG_CHECKING([for recent Pod::Man])
611 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
613 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
619 # 'make compare' can be significantly faster, if cmp itself can
620 # skip bytes instead of using tail. The test being performed is
621 # "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
622 # but we need to sink errors and handle broken shells.
623 AC_MSG_CHECKING([for cmp's capabilities])
626 if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
627 if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
628 make_compare_target=slowcompare
630 make_compare_target=gnucompare
633 make_compare_target=slowcompare
636 AC_SUBST(make_compare_target)
637 AC_MSG_RESULT($make_compare_target)
640 dnl Don't use AC_PROG_LEX; we insist on flex.
641 dnl LEXLIB is not useful in gcc.
642 if test -f $srcdir/../flex/skel.c; then
643 FLEX='$(objdir)/../flex/flex'
645 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
649 # The -L switch is so bison can find its skeleton file.
650 if test -f $srcdir/../bison/bison.simple; then
651 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
653 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
656 # --------------------
657 # Checks for C headers
658 # --------------------
660 AC_MSG_CHECKING(for GNU C library)
661 AC_CACHE_VAL(gcc_cv_glibc,
663 [#include <features.h>],[
664 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
665 #error Not a GNU C library system
669 AC_MSG_RESULT($gcc_cv_glibc)
670 if test $gcc_cv_glibc = yes; then
671 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
676 gcc_AC_HEADER_STDBOOL
679 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
680 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
681 sys/resource.h sys/param.h sys/times.h sys/stat.h \
682 direct.h malloc.h langinfo.h ldfcn.h wchar.h)
684 # Check for thread headers.
685 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
686 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
688 # These tests can't be done till we know if we have limits.h.
696 # Stage specific cflags for build.
702 stage1_cflags="-Wa,-J"
708 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
709 # sources; use -no-cpp-precomp to get to GNU cpp.
710 # Apple's GCC has bugs in designated initializer handling, so disable
712 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
715 AC_SUBST(stage1_cflags)
717 # These libraries may be used by collect2.
718 # We may need a special search path to get them linked.
719 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
721 for libs in '' -lld -lmld \
722 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
723 '-L/usr/lib/cmplrs/cc3.11 -lmld'
726 AC_TRY_LINK_FUNC(ldopen,
727 [gcc_cv_collect2_libs="$libs"; break])
730 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
731 case $gcc_cv_collect2_libs in
733 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
735 AC_SUBST(COLLECT2_LIBS)
737 # When building Ada code on Alpha, we need exc_resume which is usually in
738 # -lexc. So test for it.
741 AC_SEARCH_LIBS(exc_resume, exc)
744 AC_SUBST(GNAT_LIBEXC)
746 # Some systems put ldexp and frexp in libm instead of libc; assume
747 # they're both in the same place. jcf-dump needs them.
750 AC_SEARCH_LIBS(ldexp, m)
755 # Use <inttypes.h> only if it exists,
756 # doesn't clash with <sys/types.h>, and declares intmax_t.
757 AC_MSG_CHECKING(for inttypes.h)
758 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
760 [#include <sys/types.h>
761 #include <inttypes.h>],
763 [gcc_cv_header_inttypes_h=yes],
764 gcc_cv_header_inttypes_h=no)])
765 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
766 if test $gcc_cv_header_inttypes_h = yes; then
767 AC_DEFINE(HAVE_INTTYPES_H, 1,
768 [Define if you have a working <inttypes.h> header file.])
771 dnl Disabled until we have a complete test for buggy enum bitfields.
772 dnl gcc_AC_C_ENUM_BF_UNSIGNED
774 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
775 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
776 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
777 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore)
779 if test x$ac_cv_func_mbstowcs = xyes; then
780 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
781 [ AC_TRY_RUN([#include <stdlib.h>
787 gcc_cv_func_mbstowcs_works=yes,
788 gcc_cv_func_mbstowcs_works=no,
789 gcc_cv_func_mbstowcs_works=yes)])
790 if test x$gcc_cv_func_mbstowcs_works = xyes; then
791 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
792 [Define this macro if mbstowcs does not crash when its
793 first argument is NULL.])
797 AC_CHECK_TYPE(ssize_t, int)
799 # Try to determine the array type of the second argument of getgroups
800 # for the target system (int or gid_t).
802 if test "${target}" = "${build}"; then
803 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
806 # This condition may need some tweaking. It should include all
807 # targets where the array type of the second argument of getgroups
808 # is int and the type of gid_t is not equivalent to int.
809 *-*-sunos* | *-*-ultrix*)
810 TARGET_GETGROUPS_T=int
813 TARGET_GETGROUPS_T=gid_t
817 AC_SUBST(TARGET_GETGROUPS_T)
819 gcc_AC_FUNC_PRINTF_PTR
820 gcc_AC_FUNC_MMAP_BLACKLIST
825 *** UWIN may not be used as a host platform because
826 *** linking with posix.dll is not allowed by the GNU GPL])
829 # Under VMS, vfork works very different than on Unix. The standard test
830 # won't work, and it isn't easily adaptable. It makes more sense to
832 ac_cv_func_vfork_works=yes
839 # We will need to find libiberty.h and ansidecl.h
840 saved_CFLAGS="$CFLAGS"
841 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
842 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
843 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
844 fprintf_unlocked strstr errno vasprintf \
845 malloc realloc calloc free basename getopt clock, , ,[
846 #include "ansidecl.h"
847 #include "system.h"])
849 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
850 #include "ansidecl.h"
852 #ifdef HAVE_SYS_RESOURCE_H
853 #include <sys/resource.h>
858 #include "ansidecl.h"
860 #ifdef HAVE_SYS_RESOURCE_H
861 #include <sys/resource.h>
863 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
864 [Define to \`long' if <sys/resource.h> doesn't define.])])
866 gcc_AC_CHECK_DECLS(ldgetname, , ,[
867 #include "ansidecl.h"
874 gcc_AC_CHECK_DECLS(times, , ,[
875 #include "ansidecl.h"
877 #ifdef HAVE_SYS_TIMES_H
878 #include <sys/times.h>
882 # More time-related stuff.
883 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
885 #include "ansidecl.h"
887 #ifdef HAVE_SYS_TIMES_H
888 #include <sys/times.h>
890 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
891 if test $ac_cv_struct_tms = yes; then
892 AC_DEFINE(HAVE_STRUCT_TMS, 1,
893 [Define if <sys/times.h> defines struct tms.])
896 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
897 # revisit after autoconf 2.50.
898 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
900 #include "ansidecl.h"
902 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
903 if test $gcc_cv_type_clock_t = yes; then
904 AC_DEFINE(HAVE_CLOCK_T, 1,
905 [Define if <time.h> defines clock_t.])
908 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
910 #include "ansidecl.h"
913 [if ((uchar *)0) return 0;
914 if (sizeof(uchar)) return 0;],
915 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
916 if test $ac_cv_type_uchar = yes; then
917 AC_DEFINE(HAVE_UCHAR, 1,
918 [Define if <sys/types.h> defines \`uchar'.])
921 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
922 CFLAGS="$saved_CFLAGS"
924 gcc_AC_INITFINI_ARRAY
926 # mkdir takes a single argument on some systems.
927 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
935 # With Setjmp/Longjmp based exception handling.
936 AC_ARG_ENABLE(sjlj-exceptions,
937 [ --enable-sjlj-exceptions
938 arrange to use setjmp/longjmp exception handling],
939 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
940 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
941 [Define 0/1 to force the choice for exception handling model.])])
943 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
944 # Use libunwind based exception handling.
945 AC_ARG_ENABLE(libunwind-exceptions,
946 [ --enable-libunwind-exceptions force use libunwind for exceptions],
947 use_libunwind_exceptions=$enableval,
948 use_libunwind_exceptions=$use_libunwind_default)
949 if test x"$use_libunwind_exceptions" = xyes; then
950 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
951 [Define if gcc should use -lunwind.])
954 # --------------------------------------------------------
955 # Build, host, and target specific configuration fragments
956 # --------------------------------------------------------
961 build_install_headers_dir=install-headers-tar
968 # Decode the host machine, then the target machine.
969 # For the host machine, we save the xm_file variable as host_xm_file;
970 # then we decode the target machine and forget everything else
971 # that came from the host machine.
972 for machine in $build $host $target; do
973 . ${srcdir}/config.gcc
976 extra_objs="${host_extra_objs} ${extra_objs}"
978 # Default the target-machine variables that were not explicitly set.
979 if test x"$tm_file" = x
980 then tm_file=$cpu_type/$cpu_type.h; fi
982 if test x"$extra_headers" = x
983 then extra_headers=; fi
985 if test x$md_file = x
986 then md_file=$cpu_type/$cpu_type.md; fi
988 if test x$out_file = x
989 then out_file=$cpu_type/$cpu_type.c; fi
991 if test x"$tmake_file" = x
992 then tmake_file=$cpu_type/t-$cpu_type
995 if test x"$dwarf2" = xyes
996 then tm_file="$tm_file tm-dwarf2.h"
999 # Say what files are being used for the output code and MD file.
1000 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1001 echo "Using \`$srcdir/config/$md_file' as machine description file."
1003 # If any of the xm_file variables contain nonexistent files, warn
1004 # about them and drop them.
1007 for x in $build_xm_file; do
1008 if test -f $srcdir/config/$x
1010 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1016 for x in $host_xm_file; do
1017 if test -f $srcdir/config/$x
1019 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1025 for x in $xm_file; do
1026 if test -f $srcdir/config/$x
1028 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1034 for f in $tm_file; do
1037 if test $count = ax; then
1038 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1040 echo "Using the following target machine macro files:"
1041 for f in $tm_file; do
1042 echo " $srcdir/config/$f"
1046 if test x$need_64bit_hwint = xyes; then
1047 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1048 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1052 for f in $host_xm_file; do
1055 if test $count = a; then
1057 elif test $count = ax; then
1058 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1060 echo "Using the following host machine macro files:"
1061 for f in $host_xm_file; do
1062 echo " $srcdir/config/$f"
1065 echo "Using ${out_host_hook_obj} for host machine hooks."
1067 if test "$host_xm_file" != "$build_xm_file"; then
1069 for f in $build_xm_file; do
1072 if test $count = a; then
1074 elif test $count = ax; then
1075 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1077 echo "Using the following build machine macro files:"
1078 for f in $build_xm_file; do
1079 echo " $srcdir/config/$f"
1084 if test x$thread_file = x; then
1085 if test x$target_thread_file != x; then
1086 thread_file=$target_thread_file
1088 thread_file='single'
1092 if test x$enable___cxa_atexit = xyes || \
1093 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1094 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1095 [Define if you want to use __cxa_atexit, rather than atexit, to
1096 register C++ destructors for local statics and global objects.
1097 This is essential for fully standards-compliant handling of
1098 destructors, but requires __cxa_atexit in libc.])
1101 # Look for a file containing extra machine modes.
1102 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1103 extra_modes_file='$(srcdir)'/config/${extra_modes}
1104 AC_SUBST(extra_modes_file)
1105 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1106 [Define to the name of a file containing a list of extra machine modes
1107 for this architecture.])
1108 AC_DEFINE(EXTRA_CC_MODES, 1,
1109 [Define if the target architecture needs extra machine modes to represent
1110 the results of comparisons.])
1113 # auto-host.h is the file containing items generated by autoconf and is
1114 # the first file included by config.h.
1115 # If host=build, it is correct to have bconfig include auto-host.h
1116 # as well. If host!=build, we are in error and need to do more
1117 # work to find out the build config parameters.
1118 if test x$host = x$build
1120 build_auto=auto-host.h
1123 # We create a subdir, then run autoconf in the subdir.
1124 # To prevent recursion we set host and build for the new
1125 # invocation of configure to the build for this invocation
1132 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1133 *) realsrcdir=../${srcdir};;
1135 saved_CFLAGS="${CFLAGS}"
1136 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1137 ${realsrcdir}/configure \
1138 --target=$target_alias --host=$build_alias --build=$build_alias
1139 CFLAGS="${saved_CFLAGS}"
1141 # We just finished tests for the build machine, so rename
1142 # the file auto-build.h in the gcc directory.
1143 mv auto-host.h ../auto-build.h
1146 build_auto=auto-build.h
1147 FORBUILD=../${build_subdir}
1151 tm_file="${tm_file} defaults.h"
1152 tm_p_file="${tm_p_file} tm-preds.h"
1153 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1154 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1155 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1156 # put this back in temporarily.
1157 xm_file="ansidecl.h ${xm_file}"
1163 # Get the version trigger filename from the toplevel
1164 if test "${with_gcc_version_trigger+set}" = set; then
1165 gcc_version_trigger=$with_gcc_version_trigger
1167 gcc_version_trigger=${srcdir}/version.c
1170 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1171 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1173 # Compile in configure arguments.
1174 if test -f configargs.h ; then
1175 # Being re-configured.
1176 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1177 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1179 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1181 cat > configargs.h <<EOF
1182 /* Generated automatically. */
1183 static const char configuration_arguments[] = "$gcc_config_arguments";
1184 static const char thread_model[] = "$thread_file";
1186 static const struct {
1187 const char *name, *value;
1188 } configure_default_options[] = $configure_default_options;
1192 # Internationalization
1194 VERSION="$gcc_version"
1198 # Enable NLS support by default
1200 [ --enable-nls use Native Language Support (default)],
1203 # if cross compiling, disable NLS support.
1204 # It's not worth the trouble, at least for now.
1206 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1207 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1213 # Windows32 Registry support for specifying GCC installation paths.
1214 AC_ARG_ENABLE(win32-registry,
1215 [ --disable-win32-registry
1216 disable lookup of installation paths in the
1217 Registry on Windows hosts
1218 --enable-win32-registry enable registry lookup (default)
1219 --enable-win32-registry=KEY
1220 use KEY instead of GCC version as the last portion
1221 of the registry key],,)
1223 win32 | pe | cygwin* | mingw32* | uwin*)
1224 AC_MSG_CHECKING(whether windows registry support is requested)
1225 if test "x$enable_win32_registry" != xno; then
1226 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1227 [Define to 1 if installation paths should be looked up in Windows32
1228 Registry. Ignored on non windows32 hosts.])
1230 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1235 # Check if user specified a different registry key.
1236 case "x${enable_win32_registry}" in
1239 gcc_cv_win32_registry_key="$VERSION"
1242 # no registry lookup.
1243 gcc_cv_win32_registry_key=''
1246 # user-specified key.
1247 gcc_cv_win32_registry_key="$enable_win32_registry"
1251 if test "x$enable_win32_registry" != xno; then
1252 AC_MSG_CHECKING(registry key on windows hosts)
1253 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1254 [Define to be the last portion of registry key on windows hosts.])
1255 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1260 # Get an absolute path to the GCC top-level source directory
1261 holddir=`${PWDCMD-pwd}`
1263 topdir=`${PWDCMD-pwd}`
1266 # Conditionalize the makefile for this host machine.
1267 # Make-host contains the concatenation of all host makefile fragments
1268 # [there can be more than one]. This file is built by configure.frag.
1269 host_overrides=Make-host
1270 dep_host_xmake_file=
1271 for f in .. ${host_xmake_file}
1273 if test -f ${srcdir}/config/$f
1275 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1279 # Conditionalize the makefile for this target machine.
1280 # Make-target contains the concatenation of all host makefile fragments
1281 # [there can be more than one]. This file is built by configure.frag.
1282 target_overrides=Make-target
1284 for f in .. ${tmake_file}
1286 if test -f ${srcdir}/config/$f
1288 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1292 symbolic_link='ln -s'
1294 # If the host doesn't support symlinks, modify CC in
1295 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1296 # Otherwise, we can use "CC=$(CC)".
1298 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1300 cc_set_by_configure="\$(CC)"
1301 quoted_cc_set_by_configure="\$(CC)"
1302 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1303 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1306 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1308 symbolic_link="cp -p"
1312 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1313 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1314 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1315 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1319 out_object_file=`basename $out_file .c`.o
1322 for f in $tm_file; do
1325 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1327 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1328 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1333 for f in $tm_p_file; do
1336 tm_p_file_list="${tm_p_file_list} $f" ;;
1337 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1342 for f in $host_xm_file; do
1345 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1347 host_xm_file_list="${host_xm_file_list} $f" ;;
1349 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1350 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1355 for f in $build_xm_file; do
1358 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1359 auto-build.h | auto-host.h )
1360 build_xm_file_list="${build_xm_file_list} $f" ;;
1362 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1363 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1367 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1368 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1369 CROSS= AC_SUBST(CROSS)
1370 ALL=all.internal AC_SUBST(ALL)
1371 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1372 if test x$host != x$target
1374 CROSS="-DCROSS_COMPILE"
1376 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1377 case "$host","$target" in
1378 i?86-*-*,x86_64-*-* \
1379 | powerpc*-*-*,powerpc64*-*-*)
1380 CROSS="$CROSS -DNATIVE_CROSS" ;;
1382 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1383 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1384 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1387 # If this is a cross-compiler that does not
1388 # have its own set of headers then define
1391 # If this is using newlib, without having the headers available now,
1392 # then define inhibit_libc in LIBGCC2_CFLAGS.
1393 # This prevents libgcc2 from containing any code which requires libc
1396 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1397 test x$with_newlib = xyes ; } &&
1398 test "x$with_headers" = x ; then
1399 inhibit_libc=-Dinhibit_libc
1401 AC_SUBST(inhibit_libc)
1403 # When building gcc with a cross-compiler, we need to adjust things so
1404 # that the generator programs are still built with the native compiler.
1405 # Also, we cannot run fixincludes or fix-header.
1407 # These are the normal (build=host) settings:
1408 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1409 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1410 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1411 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1413 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1414 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1416 # And these apply if build != host.
1417 if test x$build != x$host
1420 BUILD_PREFIX_1=build-
1421 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1423 if test "x$TARGET_SYSTEM_ROOT" = x; then
1429 # Expand extra_headers to include complete path.
1430 # This substitutes for lots of t-* files.
1432 if test "x$extra_headers" = x
1435 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1436 for file in $extra_headers;
1438 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1442 # Add a definition of USE_COLLECT2 if system wants one.
1443 case $use_collect2 in
1444 no) use_collect2= ;;
1447 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1448 xm_defines="${xm_defines} USE_COLLECT2"
1452 # Identify the assembler which will work hand-in-glove with the newly
1453 # built GCC, so that we can examine its features. This is the assembler
1454 # which will be driven by the driver program.
1456 # If build != host, and we aren't building gas in-tree, we identify a
1457 # build->target assembler and hope that it will have the same features
1458 # as the host->target assembler we'll be using.
1459 AC_MSG_CHECKING(what assembler to use)
1462 gcc_cv_gas_major_version=
1463 gcc_cv_gas_minor_version=
1464 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1465 if test -x "$DEFAULT_ASSEMBLER"; then
1466 gcc_cv_as="$DEFAULT_ASSEMBLER"
1467 elif test -x "$AS"; then
1469 elif test -x as$host_exeext; then
1470 # Build using assembler in the current directory.
1471 gcc_cv_as=./as$host_exeext
1472 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1473 && test -f ../gas/Makefile; then
1474 # Single tree build which includes gas.
1476 _gcc_COMPUTE_GAS_VERSION
1477 rm -f as$host_exeext
1478 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1479 in_tree_gas_is_elf=no
1480 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1481 || (grep 'obj_format = multi' ../gas/Makefile \
1482 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1484 in_tree_gas_is_elf=yes
1488 if test "x$gcc_cv_as" = x; then
1489 # Search the same directories that the installed compiler will
1490 # search. Else we may find the wrong assembler and lose. If we
1491 # do not find a suitable assembler binary, then try the user's
1494 # Also note we have to check MD_EXEC_PREFIX before checking the
1495 # user's path. Unfortunately, there is no good way to get at the
1496 # value of MD_EXEC_PREFIX here. So we do a brute force search
1497 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1498 # to be fixed as part of the make/configure rewrite too.
1500 if test "x$exec_prefix" = xNONE; then
1501 if test "x$prefix" = xNONE; then
1502 test_prefix=/usr/local
1507 test_prefix=$exec_prefix
1510 # If the loop below does not find an assembler, then use whatever
1511 # one we can find in the users's path.
1513 if test "x$program_prefix" != xNONE; then
1514 gcc_cv_as=${program_prefix}as$host_exeext
1516 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1519 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1520 $test_prefix/lib/gcc-lib/$target_alias \
1521 /usr/lib/gcc/$target_alias/$gcc_version \
1522 /usr/lib/gcc/$target_alias \
1523 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1524 $test_prefix/$target_alias/bin"
1526 if test x$host = x$target; then
1527 test_dirs="$test_dirs \
1532 /bsd43/usr/lib/cmplrs/cc \
1533 /usr/cross64/usr/bin \
1534 /usr/lib/cmplrs/cc \
1535 /sysv/usr/lib/cmplrs/cc \
1536 /svr4/usr/lib/cmplrs/cc \
1540 for dir in $test_dirs; do
1541 if test -x $dir/as$host_exeext; then
1542 gcc_cv_as=$dir/as$host_exeext
1547 case $in_tree_gas in
1549 AC_MSG_RESULT("newly built gas")
1552 AC_MSG_RESULT($gcc_cv_as)
1556 # Identify the linker which will work hand-in-glove with the newly
1557 # built GCC, so that we can examine its features. This is the linker
1558 # which will be driven by the driver program.
1560 # If build != host, and we aren't building gas in-tree, we identify a
1561 # build->target linker and hope that it will have the same features
1562 # as the host->target linker we'll be using.
1563 AC_MSG_CHECKING(what linker to use)
1566 gcc_cv_gld_major_version=
1567 gcc_cv_gld_minor_version=
1568 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1569 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1570 if test -x "$DEFAULT_LINKER"; then
1571 gcc_cv_ld="$DEFAULT_LINKER"
1572 elif test -x "$LD"; then
1574 elif test -x collect-ld$host_exeext; then
1575 # Build using linker in the current directory.
1576 gcc_cv_ld=./collect-ld$host_exeext
1577 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1578 && test -f ../ld/Makefile; then
1579 # Single tree build which includes ld.
1581 in_tree_ld_is_elf=no
1582 if (grep 'EMUL = .*elf' ../ld/Makefile \
1583 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1584 in_tree_ld_is_elf=yes
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 test $in_tree_gas_is_elf = yes \
1759 && gcc_cv_as_subsections="working .subsection -1"
1761 elif test x$gcc_cv_as != x; then
1762 # Check if we have .subsection
1763 echo ".subsection 1" > conftest.s
1764 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1765 gcc_cv_as_subsections=".subsection"
1766 if test x$gcc_cv_nm != x; then
1767 cat > conftest.s <<EOF
1768 conftest_label1: .word 0
1770 conftest_label2: .word 0
1773 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1774 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1775 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1776 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1779 gcc_cv_as_subsections="working .subsection -1"
1784 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1786 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1787 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1788 [Define if your assembler supports .subsection and .subsection -1 starts
1789 emitting at the beginning of your section.])
1791 AC_MSG_RESULT($gcc_cv_as_subsections)
1793 AC_MSG_CHECKING(assembler weak support)
1795 if test $in_tree_gas = yes ; then
1796 gcc_GAS_VERSION_GTE_IFELSE(2,2,0,[
1797 gcc_cv_as_weak="yes"
1799 elif test x$gcc_cv_as != x; then
1800 # Check if we have .weak
1801 echo " .weak foobar" > conftest.s
1802 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1803 gcc_cv_as_weak="yes"
1805 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1807 if test x"$gcc_cv_as_weak" = xyes; then
1808 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1810 AC_MSG_RESULT($gcc_cv_as_weak)
1812 AC_MSG_CHECKING(assembler hidden support)
1814 if test $in_tree_gas = yes ; then
1815 gcc_GAS_VERSION_GTE_IFELSE(2,12,1,[
1816 test $in_tree_gas_is_elf = yes && gcc_cv_as_hidden="yes"
1818 elif test x$gcc_cv_as != x; then
1819 # Check if we have .hidden
1820 echo " .hidden foobar" > conftest.s
1821 echo "foobar:" >> conftest.s
1822 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1823 gcc_cv_as_hidden="yes"
1825 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1827 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1828 # This is irritatingly difficult to feature test for. Look for
1829 # the date string after the version number.
1830 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1831 if echo "$ld_ver" | grep GNU > /dev/null; then
1833 ld_vers=`echo $ld_ver | sed -n \
1834 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1835 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1836 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1837 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1838 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1839 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1840 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1841 if test 0"$ld_date" -lt 20020404; then
1842 if test -n "$ld_date"; then
1843 # If there was date string, but was earlier than 2002-04-04, fail
1844 gcc_cv_as_hidden="no"
1845 elif test -z "$ld_vers"; then
1846 # If there was no date string nor ld version number, something is wrong
1847 gcc_cv_as_hidden="no"
1849 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1850 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1851 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1852 test -z "$ld_vers_patch" && ld_vers_patch=0
1853 if test "$ld_vers_major" -lt 2; then
1854 gcc_cv_as_hidden="no"
1855 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1856 gcc_cv_as_hidden="no"
1857 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1858 -a "$ld_vers_patch" -eq 0; then
1859 gcc_cv_as_hidden="no"
1868 if test x"$gnu_ld_flag" = x"no"; then
1869 # Even if using gas with .hidden support, the resulting object files
1870 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1871 # N64 linkers, the problem is that the linker refuses to accept
1872 # -call_shared (passed by default to the linker) and -r (used to
1873 # link the object file generated without .hidden directives with
1874 # one that hides symbols), so we also lose.
1879 if test x"$gcc_cv_as_hidden" = xyes; then
1880 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1881 [Define if your assembler supports .hidden.])
1883 AC_MSG_RESULT($gcc_cv_as_hidden)
1884 libgcc_visibility=$gcc_cv_as_hidden
1885 AC_SUBST(libgcc_visibility)
1887 AC_MSG_CHECKING(assembler leb128 support)
1889 if test $in_tree_gas = yes ; then
1890 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
1891 test $in_tree_gas_is_elf = yes && gcc_cv_as_leb128="yes"
1893 elif test x$gcc_cv_as != x; then
1894 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1895 cat > conftest.s <<EOF
1903 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1904 gcc_cv_as_leb128="yes"
1906 # GAS versions before 2.11 do not support uleb128,
1907 # despite appearing to.
1908 # ??? There exists an elf-specific test that will crash
1909 # the assembler. Perhaps it's better to figure out whether
1910 # arbitrary sections are supported and try the test.
1911 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1912 if echo "$as_ver" | grep GNU > /dev/null; then
1914 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1915 as_major=`echo $as_ver | sed 's/\..*//'`
1916 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1918 if test $as_major -eq 2 -a $as_minor -lt 11; then
1919 gcc_cv_as_leb128="no"
1923 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1925 if test x"$gcc_cv_as_leb128" = xyes; then
1926 AC_DEFINE(HAVE_AS_LEB128, 1,
1927 [Define if your assembler supports .uleb128.])
1929 AC_MSG_RESULT($gcc_cv_as_leb128)
1931 AC_MSG_CHECKING(assembler eh_frame optimization)
1932 gcc_cv_as_eh_frame=no
1933 if test $in_tree_gas = yes ; then
1934 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1935 test $in_tree_gas_is_elf = yes && gcc_cv_as_eh_frame="yes"
1937 elif test x$gcc_cv_as != x; then
1938 # Check if this is GAS.
1939 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1940 rm -f a.out 2> /dev/null
1941 if echo "$as_ver" | grep GNU > /dev/null; then
1942 # Versions up to and including 2.11.0 may mis-optimize
1943 # .eh_frame data. Try something.
1944 cat > conftest.s <<EOF
1951 .section .eh_frame,"aw",@progbits
1953 .4byte .LECIE1-.LSCIE1
1967 .4byte .LEFDE1-.LASFDE1
1969 .4byte .LASFDE1-__FRAME_BEGIN__
1978 cat > conftest.lit <<EOF
1979 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1980 0010 01000000 12000000 18000000 00000000 ................
1981 0020 08000000 04080000 0044 .........D
1983 cat > conftest.big <<EOF
1984 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1985 0010 00000001 00000012 00000018 00000000 ................
1986 0020 00000008 04000000 0844 .........D
1988 # If the assembler didn't choke, and we can objdump,
1989 # and we got the correct data, then succeed.
1990 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1991 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1992 | tail -3 > conftest.got \
1993 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1994 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1996 gcc_cv_as_eh_frame="yes"
1998 gcc_cv_as_eh_frame="bad"
1999 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
2000 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2001 [Define if your assembler mis-optimizes .eh_frame data.])
2007 AC_MSG_RESULT($gcc_cv_as_eh_frame)
2009 AC_MSG_CHECKING(assembler section merging support)
2010 gcc_cv_as_shf_merge=no
2011 if test $in_tree_gas = yes ; then
2012 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2013 test $in_tree_gas_is_elf = yes && gcc_cv_as_shf_merge="yes"
2015 elif test x$gcc_cv_as != x; then
2016 # Check if we support SHF_MERGE sections
2017 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
2018 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
2019 gcc_cv_as_shf_merge=yes
2021 rm -f conftest.s conftest.o
2023 if test x"$gcc_cv_as_shf_merge" = xyes; then
2024 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
2025 [Define if your assembler supports marking sections with SHF_MERGE flag.])
2027 AC_MSG_RESULT($gcc_cv_as_shf_merge)
2029 AC_MSG_CHECKING(assembler thread-local storage support)
2039 .section ".tdata","awT",@progbits
2042 ldq $27,__tls_get_addr($29) !literal!1
2043 lda $16,foo($29) !tlsgd!1
2044 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2045 ldq $27,__tls_get_addr($29) !literal!2
2046 lda $16,foo($29) !tlsldm!2
2047 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2048 ldq $1,foo($29) !gotdtprel
2049 ldah $2,foo($29) !dtprelhi
2050 lda $3,foo($2) !dtprello
2051 lda $4,foo($29) !dtprel
2052 ldq $1,foo($29) !gottprel
2053 ldah $2,foo($29) !tprelhi
2054 lda $3,foo($2) !tprello
2055 lda $4,foo($29) !tprel'
2062 .section ".tdata","awT",@progbits
2066 leal foo@TLSGD(,%ebx,1), %eax
2067 leal foo@TLSLDM(%ebx), %eax
2068 leal foo@DTPOFF(%eax), %edx
2069 movl foo@GOTTPOFF(%ebx), %eax
2070 subl foo@GOTTPOFF(%ebx), %eax
2071 addl foo@GOTNTPOFF(%ebx), %eax
2072 movl foo@INDNTPOFF, %eax
2073 movl $foo@TPOFF, %eax
2074 subl $foo@TPOFF, %eax
2075 leal foo@NTPOFF(%ecx), %eax'
2081 .section ".tdata","awT",@progbits
2085 leaq foo@TLSGD(%rip), %rdi
2086 leaq foo@TLSLD(%rip), %rdi
2087 leaq foo@DTPOFF(%rax), %rdx
2088 movq foo@GOTTPOFF(%rip), %rax
2089 movq $foo@TPOFF, %rax'
2095 .section ".tdata","awT",@progbits
2098 addl r16 = @ltoff(@dtpmod(foo#)), gp
2099 addl r17 = @ltoff(@dtprel(foo#)), gp
2100 addl r18 = @ltoff(@tprel(foo#)), gp
2101 addl r19 = @dtprel(foo#), gp
2102 adds r21 = @dtprel(foo#), r13
2103 movl r23 = @dtprel(foo#)
2104 addl r20 = @tprel(foo#), gp
2105 adds r22 = @tprel(foo#), r13
2106 movl r24 = @tprel(foo#)'
2112 .section ".tdata","awT",@progbits
2120 addi 3,31,ld0@got@tlsgd
2122 addi 3,31,x1@got@tlsld
2125 addis 9,3,x2@dtprel@ha
2126 addi 9,9,x2@dtprel@l
2127 lwz 9,x3@got@tprel(31)
2130 addis 9,2,x2@tprel@ha
2131 addi 9,9,x2@tprel@l'
2138 .section ".tdata","awT",@progbits
2146 addi 3,2,ld0@got@tlsgd
2152 addi 3,2,x1@got@tlsld
2158 addis 9,3,x2@dtprel@ha
2159 addi 9,9,x2@dtprel@l
2162 ld 9,x3@got@dtprel(2)
2172 .section ".tdata","awT",@progbits
2181 l %r1,foo@GOTNTPOFF(%r12)
2182 l %r1,0(%r1):tls_load:foo
2183 bas %r14,0(%r1,%r13):tls_gdcall:foo
2184 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2191 .section ".tdata","awT",@progbits
2199 lg %r1,foo@GOTNTPOFF(%r12)
2200 larl %r1,foo@INDNTPOFF
2201 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2202 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2205 tls_as_opt="-m64 -Aesame"
2208 if test -z "$tls_first_major"; then
2210 elif test $in_tree_gas = yes ; then
2211 gcc_GAS_VERSION_GTE_IFELSE($tls_first_major,$tls_first_minor,0,[
2214 elif test x$gcc_cv_as != x; then
2215 echo "$conftest_s" > conftest.s
2216 if $gcc_cv_as $tls_as_opt --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2220 rm -f conftest.s conftest.o
2222 if test "$gcc_cv_as_tls" = yes; then
2223 AC_DEFINE(HAVE_AS_TLS, 1,
2224 [Define if your assembler supports thread-local storage.])
2226 AC_MSG_RESULT($gcc_cv_as_tls)
2229 # All TARGET_ABI_OSF targets.
2230 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2231 AC_CACHE_CHECK([assembler supports explicit relocations],
2232 gcc_cv_as_explicit_relocs, [
2233 gcc_cv_as_explicit_relocs=unknown
2234 if test $in_tree_gas = yes ; then
2235 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2236 gcc_cv_as_explicit_relocs=yes
2238 elif test x$gcc_cv_as != x; then
2239 cat > conftest.s << 'EOF'
2242 extbl $3, $2, $3 !lituse_bytoff!1
2243 ldq $2, a($29) !literal!1
2244 ldq $4, b($29) !literal!2
2245 ldq_u $3, 0($2) !lituse_base!1
2246 ldq $27, f($29) !literal!5
2247 jsr $26, ($27), f !lituse_jsr!5
2248 ldah $29, 0($26) !gpdisp!3
2249 lda $0, c($29) !gprel
2250 ldah $1, d($29) !gprelhigh
2251 lda $1, d($1) !gprellow
2252 lda $29, 0($29) !gpdisp!3
2254 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2255 gcc_cv_as_explicit_relocs=yes
2257 gcc_cv_as_explicit_relocs=no
2259 rm -f conftest.s conftest.o
2262 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2263 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2264 [Define if your assembler supports explicit relocations.])
2268 AC_CACHE_CHECK([assembler .register pseudo-op support],
2269 gcc_cv_as_register_pseudo_op, [
2270 gcc_cv_as_register_pseudo_op=unknown
2271 if test x$gcc_cv_as != x; then
2272 # Check if we have .register
2273 echo ".register %g2, #scratch" > conftest.s
2274 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2275 gcc_cv_as_register_pseudo_op=yes
2277 gcc_cv_as_register_pseudo_op=no
2279 rm -f conftest.s conftest.o
2282 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2283 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2284 [Define if your assembler supports .register.])
2287 AC_CACHE_CHECK([assembler supports -relax],
2288 gcc_cv_as_relax_opt, [
2289 gcc_cv_as_relax_opt=unknown
2290 if test x$gcc_cv_as != x; then
2291 # Check if gas supports -relax
2292 echo ".text" > conftest.s
2293 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2294 gcc_cv_as_relax_opt=yes
2296 gcc_cv_as_relax_opt=no
2298 rm -f conftest.s conftest.o
2301 if test "x$gcc_cv_as_relax_opt" = xyes; then
2302 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2303 [Define if your assembler supports -relax option.])
2306 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2307 gcc_cv_as_sparc_ua_pcrel, [
2308 gcc_cv_as_sparc_ua_pcrel=unknown
2309 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2310 gcc_cv_as_sparc_ua_pcrel=no
2311 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2312 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2313 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2314 gcc_cv_as_sparc_ua_pcrel=yes
2316 rm -f conftest.s conftest.o conftest
2319 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2320 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2321 [Define if your assembler and linker support unaligned PC relative relocs.])
2324 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2325 gcc_cv_as_sparc_ua_pcrel_hidden, [
2326 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2327 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2328 if test x$gcc_cv_objdump != x; then
2329 gcc_cv_as_sparc_ua_pcrel_hidden=no
2330 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2331 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2332 echo "foo: .skip 4" >> conftest.s
2333 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2334 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2335 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2336 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2337 if $gcc_cv_objdump -R conftest 2> /dev/null \
2338 | grep 'DISP32' > /dev/null 2>&1; then
2341 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2345 rm -f conftest.s conftest.o conftest
2347 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2350 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2351 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2352 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2355 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2356 gcc_cv_as_offsetable_lo10, [
2357 gcc_cv_as_offsetable_lo10=unknown
2358 if test "x$gcc_cv_as" != x; then
2359 # Check if assembler has offsetable %lo()
2360 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2361 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2362 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2364 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2365 > /dev/null 2>&1; then
2366 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2367 gcc_cv_as_offsetable_lo10=no
2369 gcc_cv_as_offsetable_lo10=yes
2372 gcc_cv_as_offsetable_lo10=no
2374 rm -f conftest.s conftest.o conftest1.s conftest1.o
2377 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2378 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2379 [Define if your assembler supports offsetable %lo().])
2385 i[34567]86-*-* | x86_64-*-*)
2387 AC_MSG_CHECKING(assembler instructions)
2388 gcc_cv_as_instructions=
2389 if test $in_tree_gas = yes ; then
2390 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
2391 gcc_cv_as_instructions="filds fists"
2393 elif test x$gcc_cv_as != x; then
2394 set "filds fists" "filds mem; fists mem"
2397 echo "$2" > conftest.s
2398 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2399 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2403 rm -f conftest.s conftest.o
2405 if test x"$gcc_cv_as_instructions" != x; then
2406 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2408 AC_MSG_RESULT($gcc_cv_as_instructions)
2410 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2411 gcc_cv_as_gotoff_in_data=no
2412 if test $in_tree_gas = yes ; then
2413 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2414 gcc_cv_as_gotoff_in_data=yes
2416 elif test x$gcc_cv_as != x; then
2417 cat > conftest.s <<EOF
2424 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2425 gcc_cv_as_gotoff_in_data=yes
2428 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2429 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2430 [Define true if the assembler supports '.long foo@GOTOFF'.])
2431 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2435 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2436 gcc_cv_as_ltoffx_ldxmov_relocs, [
2437 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2438 if test $in_tree_gas = yes ; then
2439 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2440 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2442 elif test x$gcc_cv_as != x; then
2443 cat > conftest.s << 'EOF'
2446 addl r15 = @ltoffx(x#), gp
2448 ld8.mov r16 = [r15], x#
2451 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2452 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2454 gcc_cv_as_ltoffx_ldxmov_relocs=no
2456 rm -f conftest.s conftest.o
2459 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2460 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2461 [Define if your assembler supports ltoffx and ldxmov relocations.])
2466 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2467 gcc_cv_as_dwarf2_debug_line=no
2468 # ??? Not all targets support dwarf2 debug_line, even within a version
2469 # of gas. Moreover, we need to emit a valid instruction to trigger any
2470 # info to the output file. So, as supported targets are added to gas 2.11,
2471 # add some instruction here to (also) show we expect this might work.
2472 # ??? Once 2.11 is released, probably need to add first known working
2473 # version to the per-target configury.
2475 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2476 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2477 | xstormy16*-*-* | cris-*-*)
2487 if test $in_tree_gas = yes ; then
2488 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2489 test $in_tree_gas_is_elf = yes && test x"$insn" != x \
2490 && gcc_cv_as_dwarf2_debug_line="yes"
2492 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2493 echo ' .file 1 "conftest.s"' > conftest.s
2494 echo ' .loc 1 3 0' >> conftest.s
2495 echo " $insn" >> conftest.s
2496 # ??? This fails with non-gnu grep.
2497 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2498 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2499 # The .debug_line file table must be in the exact order that
2500 # we specified the files, since these indices are also used
2501 # by DW_AT_decl_file. Approximate this test by testing if
2502 # the assembler bitches if the same index is assigned twice.
2503 echo ' .file 1 "foo.s"' > conftest.s
2504 echo ' .file 1 "bar.s"' >> conftest.s
2505 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2507 gcc_cv_as_dwarf2_debug_line="no"
2509 gcc_cv_as_dwarf2_debug_line="yes"
2512 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2514 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2515 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2516 [Define if your assembler supports dwarf2 .file/.loc directives,
2517 and preserves file table indices exactly as given.])
2519 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2521 AC_MSG_CHECKING(assembler --gdwarf2 support)
2522 gcc_cv_as_gdwarf2_flag=no
2523 if test $in_tree_gas = yes ; then
2524 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2525 test $in_tree_gas_is_elf = yes && test x"$insn" != x \
2526 && gcc_cv_as_gdwarf2_flag="yes"
2528 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2529 echo '' > conftest.s
2530 # ??? This fails with non-gnu grep.
2531 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2533 gcc_cv_as_gdwarf2_flag="yes"
2535 rm -f conftest.s conftest.o
2537 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2538 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2539 [Define if your assembler supports the --gdwarf2 option.])
2541 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2543 AC_MSG_CHECKING(assembler --gstabs support)
2544 gcc_cv_as_gstabs_flag=no
2545 if test $in_tree_gas = yes ; then
2546 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2547 test $in_tree_gas_is_elf = yes && test x"$insn" != x \
2548 && gcc_cv_as_gstabs_flag="yes"
2550 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2551 echo '' > conftest.s
2552 # ??? This fails with non-gnu grep.
2553 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2554 gcc_cv_as_gstabs_flag="yes"
2555 # The native Solaris 9/Intel assembler doesn't understand --gstabs
2556 # and warns about it, but still exits successfully. So check for
2558 if $gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | \
2559 grep -i warning > /dev/null ; then
2560 gcc_cv_as_gstabs_flag="no"
2563 rm -f conftest.s conftest.o
2565 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2566 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2567 [Define if your assembler supports the --gstabs option.])
2569 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2571 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2572 gcc_cv_ld_ro_rw_mix=unknown
2573 if test $in_tree_ld = yes ; then
2574 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2575 && test $in_tree_ld_is_elf = yes; then
2576 gcc_cv_ld_ro_rw_mix=read-write
2578 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2579 echo '.section myfoosect, "a"' > conftest1.s
2580 echo '.section myfoosect, "aw"' > conftest2.s
2581 echo '.byte 1' >> conftest2.s
2582 echo '.section myfoosect, "a"' > conftest3.s
2583 echo '.byte 0' >> conftest3.s
2584 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2585 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2586 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2587 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2588 conftest2.o conftest3.o > /dev/null 2>&1; then
2589 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2590 | sed -e '/myfoosect/!d' -e N`
2591 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2592 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2593 gcc_cv_ld_ro_rw_mix=read-only
2595 gcc_cv_ld_ro_rw_mix=read-write
2600 rm -f conftest.* conftest[123].*
2603 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2604 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2605 [Define if your linker links a mix of read-only
2606 and read-write sections into a read-write section.])
2608 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2610 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2611 gcc_cv_ld_eh_frame_hdr=no
2612 if test $in_tree_ld = yes ; then
2613 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2614 && test $in_tree_ld_is_elf = yes; then
2615 gcc_cv_ld_eh_frame_hdr=yes
2617 elif test x$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 \
2633 && test $in_tree_ld_is_elf = yes; then
2636 elif test x$gcc_cv_ld != x; then
2637 # Check if linker supports -pie option
2638 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2642 if test x"$gcc_cv_ld_pie" = xyes; then
2643 AC_DEFINE(HAVE_LD_PIE, 1,
2644 [Define if your linker supports -pie option.])
2646 AC_MSG_RESULT($gcc_cv_ld_pie)
2648 # Miscellaneous target-specific checks.
2651 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2652 gcc_cv_mips_libgloss_startup=no
2653 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2654 if test "x$exec_prefix" = xNONE; then
2655 if test "x$prefix" = xNONE; then
2656 test_prefix=/usr/local
2661 test_prefix=$exec_prefix
2663 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2665 if grep '^STARTUP' $f > /dev/null 2>&1; then
2666 gcc_cv_mips_libgloss_startup=yes
2670 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2671 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2672 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2674 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2676 AC_MSG_CHECKING(whether the assembler has explicit relocation support)
2677 if test x$gcc_cv_mips_explicit_relocs = x; then
2678 gcc_cv_mips_explicit_relocs=no
2679 if test $in_tree_gas = yes; then
2680 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2681 gcc_cv_mips_explicit_relocs=yes
2683 elif test x$gcc_cv_as != x; then
2684 echo ' lw $4,%gp_rel(foo)($4)' > conftest.s
2685 if $gcc_cv_as conftest.s -o conftest.o > /dev/null 2>&1; then
2686 gcc_cv_mips_explicit_relocs=yes
2688 rm -f conftest.s conftest.o
2691 if test $gcc_cv_mips_explicit_relocs = yes; then
2692 test x$target_cpu_default != x || target_cpu_default=0
2693 target_cpu_default="(${target_cpu_default}|MASK_EXPLICIT_RELOCS)"
2695 AC_MSG_RESULT($gcc_cv_mips_explicit_relocs)
2699 if test x$with_sysroot = x && test x$host = x$target \
2700 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2701 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2704 # Figure out what language subdirectories are present.
2705 # Look if the user specified --enable-languages="..."; if not, use
2706 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2708 # NB: embedded tabs in this IF block -- do not untabify
2709 if test x"${enable_languages+set}" != xset; then
2710 if test x"${LANGUAGES+set}" = xset; then
2711 enable_languages="${LANGUAGES}"
2712 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2715 enable_languages=all
2718 if test x"${enable_languages}" = x \
2719 || test x"${enable_languages}" = xyes;
2721 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2724 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2726 # First scan to see if an enabled language requires some other language.
2727 # We assume that a given config-lang.in will list all the language
2728 # front ends it requires, even if some are required indirectly.
2729 for lang in ${srcdir}/*/config-lang.in ..
2734 # The odd quoting in the next line works around
2735 # an apparent bug in bash 1.12 on linux.
2737 ${srcdir}/[*]/config-lang.in)
2740 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2741 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2742 for other in $this_lang_requires
2744 case ,${enable_languages}, in
2750 enable_languages="$enable_languages,$other"
2759 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2762 for lang in ${srcdir}/*/config-lang.in ..
2766 # The odd quoting in the next line works around
2767 # an apparent bug in bash 1.12 on linux.
2769 ${srcdir}/[*]/config-lang.in) ;;
2771 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2772 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2773 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2774 if test "x$lang_alias" = x
2776 echo "$lang doesn't set \$language." 1>&2
2779 case ${build_by_default},${enable_languages}, in
2780 *,$lang_alias,*) add_this_lang=yes ;;
2781 no,*) add_this_lang=no ;;
2782 *,all,*) add_this_lang=yes ;;
2783 *) add_this_lang=no ;;
2785 found_languages="${found_languages} ${lang_alias}"
2786 if test x"${add_this_lang}" = xyes; then
2788 ${srcdir}/ada/config-lang.in)
2789 if test x$have_gnat = xyes ; then
2790 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2794 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2804 for expected_language in ${expected_languages} ..
2806 if test "${expected_language}" != ..; then
2807 missing_language="${expected_language}"
2808 if test "${expected_language}" = "c" \
2809 || test "${expected_language}" = "all"; then
2812 for found_language in ${found_languages} ..
2814 if test "${found_language}" != ..; then
2815 if test "${expected_language}" = "${found_language}"; then
2820 if test "x${missing_language}" != x; then
2821 missing_languages="${missing_languages} ${missing_language}"
2826 if test "x$missing_languages" != x; then
2828 The following requested languages were not found:${missing_languages}
2829 The following languages were available: c${found_languages}])
2832 # Make gthr-default.h if we have a thread file.
2834 if test $thread_file != single; then
2835 rm -f gthr-default.h
2836 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2837 gthread_flags=-DHAVE_GTHR_DEFAULT
2839 AC_SUBST(gthread_flags)
2841 # Find out what GC implementation we want, or may, use.
2843 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2850 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2855 echo "Using $GGC for garbage collection."
2857 # Use the system's zlib library.
2859 zlibinc="-I\$(srcdir)/../zlib"
2860 AC_ARG_WITH(system-zlib,
2861 [ --with-system-zlib use installed libz],
2868 dnl Very limited version of automake's enable-maintainer-mode
2870 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2871 dnl maintainer-mode is disabled by default
2872 AC_ARG_ENABLE(maintainer-mode,
2873 [ --enable-maintainer-mode
2874 enable make rules and dependencies not useful
2875 (and sometimes confusing) to the casual installer],
2876 maintainer_mode=$enableval,
2879 AC_MSG_RESULT($maintainer_mode)
2881 if test "$maintainer_mode" = "yes"; then
2888 # Make empty files to contain the specs and options for each language.
2889 # Then add #include lines to for a compiler that has specs and/or options.
2895 for subdir in . $subdirs
2897 if test -f $srcdir/$subdir/lang.opt; then
2898 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2900 if test -f $srcdir/$subdir/lang-specs.h; then
2901 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2903 if test -f $srcdir/$subdir/lang-options.h; then
2904 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2906 if test -f $srcdir/$subdir/$subdir-tree.def; then
2907 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2911 # These (without "all_") are set in each config-lang.in.
2912 # `language' must be a single word so is spelled singularly.
2917 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2918 # List of language makefile fragments.
2920 # Files for gengtype
2921 all_gtfiles="$target_gtfiles"
2922 # Files for gengtype with language
2923 all_gtfiles_files_langs=
2924 all_gtfiles_files_files=
2926 # Add the language fragments.
2927 # Languages are added via two mechanisms. Some information must be
2928 # recorded in makefile variables, these are defined in config-lang.in.
2929 # We accumulate them and plug them into the main Makefile.
2930 # The other mechanism is a set of hooks for each of the main targets
2931 # like `clean', `install', etc.
2933 language_fragments="Make-lang"
2934 language_hooks="Make-hooks"
2936 for s in .. $subdirs
2946 . ${srcdir}/$s/config-lang.in
2947 if test "x$language" = x
2949 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2952 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2953 if test -f ${srcdir}/$s/Makefile.in
2954 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2956 all_languages="$all_languages $language"
2957 if test "x$boot_language" = xyes
2959 all_boot_languages="$all_boot_languages $language"
2961 all_compilers="$all_compilers $compilers"
2962 all_stagestuff="$all_stagestuff $stagestuff"
2963 all_outputs="$all_outputs $outputs"
2964 all_gtfiles="$all_gtfiles $gtfiles"
2965 for f in .. $gtfiles
2969 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2970 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2976 # Pick up gtfiles for c
2979 . ${srcdir}/c-config-lang.in
2980 all_gtfiles="$all_gtfiles $gtfiles"
2981 for f in .. $gtfiles
2985 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2986 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2991 for language in .. $all_languages
2993 if test $language != ".."
2995 check_languages="$check_languages check-$language"
2999 # Since we can't use `::' targets, we link each language in
3000 # with a set of hooks, reached indirectly via lang.${target}.
3004 target_list="all.build all.cross start.encap rest.encap tags \
3005 info dvi generated-manpages \
3006 install-normal install-common install-info install-man \
3008 mostlyclean clean distclean extraclean maintainer-clean \
3009 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3010 for t in $target_list
3013 for lang in .. $all_languages
3015 if test $lang != ".."; then
3019 echo "lang.$t: $x" >> Make-hooks
3024 echo "dir ." > .gdbinit
3025 echo "dir ${srcdir}" >> .gdbinit
3026 if test x$gdb_needs_out_file_path = xyes
3028 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3030 if test "x$subdirs" != x; then
3033 echo "dir ${srcdir}/$s" >> .gdbinit
3036 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3038 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3039 # absolute path for gcc_tooldir based on inserting the number of up-directory
3040 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3041 # $(libsubdir)/@(unlibsubdir) based path.
3042 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3043 # make and thus we'd get different behavior depending on where we built the
3045 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3046 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
3048 changequote(<<, >>)dnl
3049 # An explanation of the sed strings:
3050 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3051 # -e 's|/$||' match a trailing forward slash and eliminates it
3052 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3053 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3055 # (*) Note this pattern overwrites the first character of the string
3056 # with a forward slash if one is not already present. This is not a
3057 # problem because the exact names of the sub-directories concerned is
3058 # unimportant, just the number of them matters.
3060 # The practical upshot of these patterns is like this:
3062 # prefix exec_prefix result
3063 # ------ ----------- ------
3065 # /foo/ /foo/bar ../
3066 # /foo /foo/bar/ ../
3067 # /foo/ /foo/bar/ ../
3068 # /foo /foo/bar/ugg ../../
3071 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
3072 changequote([, ])dnl
3074 AC_SUBST(gcc_tooldir)
3077 # Find a directory in which to install a shared libgcc.
3079 AC_ARG_ENABLE(version-specific-runtime-libs,
3080 [ --enable-version-specific-runtime-libs
3081 specify that runtime libraries should be
3082 installed in a compiler-specific directory])
3084 AC_ARG_WITH(slibdir,
3085 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3086 slibdir="$with_slibdir",
3087 if test "${enable_version_specific_runtime_libs+set}" = set; then
3088 slibdir='$(libsubdir)'
3089 elif test "$host" != "$target"; then
3090 slibdir='$(build_tooldir)/lib'
3096 objdir=`${PWDCMD-pwd}`
3099 # Process the language and host/target makefile fragments.
3100 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
3102 # Substitute configuration variables
3105 AC_SUBST(all_boot_languages)
3106 AC_SUBST(all_compilers)
3107 AC_SUBST(all_gtfiles)
3108 AC_SUBST(all_gtfiles_files_langs)
3109 AC_SUBST(all_gtfiles_files_files)
3110 AC_SUBST(all_lang_makefiles)
3111 AC_SUBST(all_languages)
3112 AC_SUBST(all_stagestuff)
3113 AC_SUBST(build_exeext)
3114 AC_SUBST(build_install_headers_dir)
3115 AC_SUBST(build_xm_file_list)
3116 AC_SUBST(build_xm_file)
3117 AC_SUBST(build_xm_defines)
3118 AC_SUBST(check_languages)
3119 AC_SUBST(cc_set_by_configure)
3120 AC_SUBST(quoted_cc_set_by_configure)
3121 AC_SUBST(cpp_install_dir)
3122 AC_SUBST(dep_host_xmake_file)
3123 AC_SUBST(dep_tmake_file)
3124 AC_SUBST(extra_headers_list)
3125 AC_SUBST(extra_objs)
3126 AC_SUBST(extra_parts)
3127 AC_SUBST(extra_passes)
3128 AC_SUBST(extra_programs)
3129 AC_SUBST(float_h_file)
3130 AC_SUBST(gcc_config_arguments)
3131 AC_SUBST(gcc_gxx_include_dir)
3132 AC_SUBST(libstdcxx_incdir)
3133 AC_SUBST(gcc_version)
3134 AC_SUBST(gcc_version_full)
3135 AC_SUBST(gcc_version_trigger)
3136 AC_SUBST(host_exeext)
3137 AC_SUBST(host_extra_gcc_objs)
3138 AC_SUBST(host_xm_file_list)
3139 AC_SUBST(host_xm_file)
3140 AC_SUBST(host_xm_defines)
3141 AC_SUBST(out_host_hook_obj)
3143 AC_SUBST(lang_opt_files)
3144 AC_SUBST(lang_options_files)
3145 AC_SUBST(lang_specs_files)
3146 AC_SUBST(lang_tree_files)
3147 AC_SUBST(local_prefix)
3149 AC_SUBST(objc_boehm_gc)
3151 AC_SUBST(out_object_file)
3152 AC_SUBST(stage_prefix_set_by_configure)
3153 AC_SUBST(quoted_stage_prefix_set_by_configure)
3154 AC_SUBST(symbolic_link)
3155 AC_SUBST(thread_file)
3156 AC_SUBST(tm_file_list)
3158 AC_SUBST(tm_defines)
3159 AC_SUBST(tm_p_file_list)
3162 AC_SUBST(xm_defines)
3163 AC_SUBST(target_alias)
3164 AC_SUBST(c_target_objs)
3165 AC_SUBST(cxx_target_objs)
3166 AC_SUBST(target_cpu_default)
3168 AC_SUBST_FILE(target_overrides)
3169 AC_SUBST_FILE(host_overrides)
3170 AC_SUBST_FILE(language_fragments)
3171 AC_SUBST_FILE(language_hooks)
3173 # Echo that links are built
3174 if test x$host = x$target
3182 if test x$host != x$build
3184 str3=" on a $build system"
3187 if test "x$str2" != x || test "x$str3" != x
3192 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3194 if test "x$str2" != x || test "x$str3" != x
3196 echo " ${str2}${str3}." 1>&2
3199 # Configure the subdirectories
3200 # AC_CONFIG_SUBDIRS($subdirs)
3202 # Create the Makefile
3203 # and configure language subdirectories
3204 AC_OUTPUT($all_outputs,
3206 case x$CONFIG_HEADERS in
3207 xauto-host.h:config.in)
3210 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3211 # bootstrapping and the installation procedure can still use
3212 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3213 # FLAGS_TO_PASS has been modified to solve the problem there.
3214 # This is virtually a duplicate of what happens in configure.lang; we do
3215 # an extra check to make sure this only happens if ln -s can be used.
3216 if test "$symbolic_link" = "ln -s"; then
3217 for d in .. ${subdirs} fixinc ; do
3218 if test $d != ..; then
3219 STARTDIR=`${PWDCMD-pwd}`
3221 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3224 $symbolic_link ../$t $t 2>/dev/null
3232 symbolic_link='$symbolic_link'