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(void *)
253 AC_COMPILE_CHECK_SIZEOF(short)
254 AC_COMPILE_CHECK_SIZEOF(int)
255 AC_COMPILE_CHECK_SIZEOF(long)
256 if test $ac_cv_c_long_long = yes; then
257 AC_COMPILE_CHECK_SIZEOF(long long)
259 if test $ac_cv_c___int64 = yes; then
260 AC_COMPILE_CHECK_SIZEOF(__int64)
267 # See if GNAT has been installed
270 if test x$have_gnat != xno ; then
271 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
272 ac_cv_prog_adac_no_long_long,
273 [cat >conftest.adb <<EOF
274 procedure conftest is begin null; end conftest;
276 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
277 ac_cv_prog_adac_no_long_long=yes
279 ac_cv_prog_adac_no_long_long=no
283 ac_cv_prog_adac_no_long_long=yes
286 # ---------------------
287 # Warnings and checking
288 # ---------------------
291 if test $ac_cv_prog_cc_no_long_long = yes && \
292 test $ac_cv_prog_adac_no_long_long = yes ; then
293 strict1_warn="-pedantic -Wno-long-long"
295 AC_SUBST(strict1_warn)
297 # If the native compiler is GCC, we can enable warnings even in stage1.
298 # That's useful for people building cross-compilers, or just running a
301 if test "x$GCC" = "xyes"; then
302 warn_cflags='$(GCC_WARN_CFLAGS)'
304 AC_SUBST(warn_cflags)
306 # Enable -Werror in bootstrap stage2 and later.
307 # Change the default to "no" on release branches.
308 AC_ARG_ENABLE(werror,
309 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
311 if test x$enable_werror = xyes ; then
316 # Enable expensive internal checks
317 AC_ARG_ENABLE(checking,
318 [ --enable-checking[=LIST]
319 enable expensive run-time checks. With LIST,
320 enable only specific categories of checks.
321 Categories are: misc,tree,rtl,rtlflag,gc,gcac,fold;
322 default is misc,tree,gc,rtlflag],
328 ac_gc_always_collect=
330 case "${enableval}" in
331 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
332 ac_rtlflag_checking=1 ;;
334 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
335 set fnord $enableval; shift
340 misc) ac_checking=1 ;;
341 tree) ac_tree_checking=1 ;;
342 rtlflag) ac_rtlflag_checking=1 ;;
343 rtl) ac_rtl_checking=1 ;;
344 gc) ac_gc_checking=1 ;;
345 gcac) ac_gc_always_collect=1 ;;
346 fold) ac_fold_checking=1 ;;
347 valgrind) ac_checking_valgrind=1 ;;
348 *) AC_MSG_ERROR(unknown check category $check) ;;
354 # Enable some checks by default for development versions of GCC
355 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
357 if test x$ac_checking != x ; then
358 AC_DEFINE(ENABLE_CHECKING, 1,
359 [Define if you want more run-time sanity checks. This one gets a grab
360 bag of miscellaneous but relatively cheap checks.])
361 nocommon_flag=-fno-common
363 AC_SUBST(nocommon_flag)
364 if test x$ac_tree_checking != x ; then
365 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
366 [Define if you want all operations on trees (the basic data
367 structure of the front ends) to be checked for dynamic type safety
368 at runtime. This is moderately expensive.])
370 if test x$ac_rtl_checking != x ; then
371 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
372 [Define if you want all operations on RTL (the basic data structure
373 of the optimizer and back end) to be checked for dynamic type safety
374 at runtime. This is quite expensive.])
376 if test x$ac_rtlflag_checking != x ; then
377 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
378 [Define if you want RTL flag accesses to be checked against the RTL
379 codes that are supported for each access macro. This is relatively
382 if test x$ac_gc_checking != x ; then
383 AC_DEFINE(ENABLE_GC_CHECKING, 1,
384 [Define if you want the garbage collector to do object poisoning and
385 other memory allocation checks. This is quite expensive.])
387 if test x$ac_gc_always_collect != x ; then
388 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
389 [Define if you want the garbage collector to operate in maximally
390 paranoid mode, validating the entire heap and collecting garbage at
391 every opportunity. This is extremely expensive.])
393 if test x$ac_fold_checking != x ; then
394 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
395 [Define if you want fold checked that it never destructs its argument.
396 This is quite expensive.])
398 valgrind_path_defines=
400 if test x$ac_checking_valgrind != x ; then
401 # It is certainly possible that there's valgrind but no valgrind.h.
402 # GCC relies on making annotations so we must have both.
403 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
405 [#include <memcheck.h>
406 #ifndef VALGRIND_DISCARD
407 #error VALGRIND_DISCARD not defined
409 [gcc_cv_header_memcheck_h=yes],
410 gcc_cv_header_memcheck_h=no)
411 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
412 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
413 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
414 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
415 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
416 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
418 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
419 valgrind_command="$valgrind_path -q"
420 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
421 [Define if you want to run subprograms and generated programs
422 through valgrind (a memory checker). This is extremely expensive.])
423 if test $gcc_cv_header_memcheck_h = yes; then
424 AC_DEFINE(HAVE_MEMCHECK_H, 1,
425 [Define if valgrind's memcheck.h header is installed.])
428 AC_SUBST(valgrind_path_defines)
429 AC_SUBST(valgrind_command)
431 # Enable code coverage collection
432 AC_ARG_ENABLE(coverage,
433 [ --enable-coverage[=LEVEL]
434 enable compiler\'s code coverage collection.
435 Use to measure compiler performance and locate
436 unused parts of the compiler. With LEVEL, specify
437 optimization. Values are opt, noopt,
439 [case "${enableval}" in
441 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
444 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
447 AC_MSG_ERROR(unknown coverage setting $enableval)
451 AC_SUBST(coverage_flags)
453 # -------------------------------
454 # Miscenalleous configure options
455 # -------------------------------
459 [ --with-stabs arrange to use stabs instead of host debug format],
465 [ --with-elf arrange to use ELF instead of host debug format],
469 # Determine whether or not multilibs are enabled.
470 AC_ARG_ENABLE(multilib,
471 [ --enable-multilib enable library support for multiple ABIs],
472 [], [enable_multilib=yes])
473 AC_SUBST(enable_multilib)
475 # Enable __cxa_atexit for C++.
476 AC_ARG_ENABLE(__cxa_atexit,
477 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
481 # Pass with no value to take the default
482 # Pass with a value to specify a thread package
483 AC_ARG_ENABLE(threads,
484 [ --enable-threads enable thread usage for target GCC
485 --enable-threads=LIB use LIB thread package for target GCC],,
488 enable_threads_flag=$enable_threads
489 # Check if a valid thread package
490 case x${enable_threads_flag} in
493 target_thread_file='single'
497 target_thread_file=''
499 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
500 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
501 target_thread_file=$enable_threads_flag
504 echo "$enable_threads is an unknown thread package" 1>&2
509 AC_ARG_ENABLE(objc-gc,
510 [ --enable-objc-gc enable the use of Boehm's garbage collector with
511 the GNU Objective-C runtime],
512 if test x$enable_objc_gc = xno; then
520 [ --with-dwarf2 force the default debug format to be DWARF 2],
521 dwarf2="$with_dwarf2",
524 AC_ARG_ENABLE(shared,
525 [ --disable-shared don't provide a shared libgcc],
527 case $enable_shared in
531 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
532 for pkg in $enableval; do
533 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
540 ], [enable_shared=yes])
541 AC_SUBST(enable_shared)
544 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
546 case ${with_sysroot} in
547 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
548 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
551 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
552 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
554 if test "x$exec_prefix" = xNONE; then
555 if test "x$prefix" = xNONE; then
556 test_prefix=/usr/local
561 test_prefix=$exec_prefix
563 case ${TARGET_SYSTEM_ROOT} in
564 "${test_prefix}"|"${test_prefix}/"*|\
565 '${exec_prefix}'|'${exec_prefix}/'*)
566 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
567 TARGET_SYSTEM_ROOT_DEFINE="$t"
572 TARGET_SYSTEM_ROOT_DEFINE=
573 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
575 AC_SUBST(TARGET_SYSTEM_ROOT)
576 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
577 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
579 # Build with intermodule optimisations
580 AC_ARG_ENABLE(intermodule,
581 [ --enable-intermodule build the compiler in one step],
582 [case ${enable_intermodule} in
583 yes) onestep="-onestep";;
589 # -------------------------
590 # Checks for other programs
591 # -------------------------
595 # Find some useful tools
602 # See if cmp has --ignore-initial.
603 gcc_AC_PROG_CMP_IGNORE_INITIAL
605 # See if we have the mktemp command.
606 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
608 # Do we have a single-tree copy of texinfo?
609 if test -f $srcdir/../texinfo/Makefile.in; then
610 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
611 gcc_cv_prog_makeinfo_modern=yes
612 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
614 # See if makeinfo has been installed and is modern enough
615 # that we can use it.
616 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
617 [GNU texinfo.* \([0-9][0-9.]*\)],
621 if test $gcc_cv_prog_makeinfo_modern = no; then
623 *** Makeinfo is missing or too old.
624 *** Info documentation will not be built.])
627 BUILD_INFO=info AC_SUBST(BUILD_INFO)
630 # Is pod2man recent enough to regenerate manpages?
631 AC_MSG_CHECKING([for recent Pod::Man])
632 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
634 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
641 dnl Don't use AC_PROG_LEX; we insist on flex.
642 dnl LEXLIB is not useful in gcc.
643 if test -f $srcdir/../flex/skel.c; then
644 FLEX='$(objdir)/../flex/flex'
646 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
650 # The -L switch is so bison can find its skeleton file.
651 if test -f $srcdir/../bison/bison.simple; then
652 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
654 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
657 # --------------------
658 # Checks for C headers
659 # --------------------
661 AC_MSG_CHECKING(for GNU C library)
662 AC_CACHE_VAL(gcc_cv_glibc,
664 [#include <features.h>],[
665 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
666 #error Not a GNU C library system
670 AC_MSG_RESULT($gcc_cv_glibc)
671 if test $gcc_cv_glibc = yes; then
672 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
677 gcc_AC_HEADER_STDBOOL
680 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
681 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
682 sys/resource.h sys/param.h sys/times.h sys/stat.h \
683 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
685 # Check for thread headers.
686 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
687 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
689 # These tests can't be done till we know if we have limits.h.
697 # Stage specific cflags for build.
703 stage1_cflags="-Wa,-J"
709 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
710 # sources; use -no-cpp-precomp to get to GNU cpp.
711 # Apple's GCC has bugs in designated initializer handling, so disable
713 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
716 AC_SUBST(stage1_cflags)
718 # These libraries may be used by collect2.
719 # We may need a special search path to get them linked.
720 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
722 for libs in '' -lld -lmld \
723 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
724 '-L/usr/lib/cmplrs/cc3.11 -lmld'
727 AC_TRY_LINK_FUNC(ldopen,
728 [gcc_cv_collect2_libs="$libs"; break])
731 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
732 case $gcc_cv_collect2_libs in
734 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
736 AC_SUBST(COLLECT2_LIBS)
738 # When building Ada code on Alpha, we need exc_resume which is usually in
739 # -lexc. So test for it.
742 AC_SEARCH_LIBS(exc_resume, exc)
745 AC_SUBST(GNAT_LIBEXC)
747 # Some systems put ldexp and frexp in libm instead of libc; assume
748 # they're both in the same place. jcf-dump needs them.
751 AC_SEARCH_LIBS(ldexp, m)
756 # Use <inttypes.h> only if it exists,
757 # doesn't clash with <sys/types.h>, and declares intmax_t.
758 AC_MSG_CHECKING(for inttypes.h)
759 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
761 [#include <sys/types.h>
762 #include <inttypes.h>],
764 [gcc_cv_header_inttypes_h=yes],
765 gcc_cv_header_inttypes_h=no)])
766 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
767 if test $gcc_cv_header_inttypes_h = yes; then
768 AC_DEFINE(HAVE_INTTYPES_H, 1,
769 [Define if you have a working <inttypes.h> header file.])
772 dnl Disabled until we have a complete test for buggy enum bitfields.
773 dnl gcc_AC_C_ENUM_BF_UNSIGNED
775 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
776 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
777 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
778 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
781 if test x$ac_cv_func_mbstowcs = xyes; then
782 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
783 [ AC_TRY_RUN([#include <stdlib.h>
789 gcc_cv_func_mbstowcs_works=yes,
790 gcc_cv_func_mbstowcs_works=no,
791 gcc_cv_func_mbstowcs_works=yes)])
792 if test x$gcc_cv_func_mbstowcs_works = xyes; then
793 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
794 [Define this macro if mbstowcs does not crash when its
795 first argument is NULL.])
799 gcc_AC_CHECK_TYPE(ssize_t, int)
801 # Try to determine the array type of the second argument of getgroups
802 # for the target system (int or gid_t).
804 if test "${target}" = "${build}"; then
805 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
808 # This condition may need some tweaking. It should include all
809 # targets where the array type of the second argument of getgroups
810 # is int and the type of gid_t is not equivalent to int.
811 *-*-sunos* | *-*-ultrix*)
812 TARGET_GETGROUPS_T=int
815 TARGET_GETGROUPS_T=gid_t
819 AC_SUBST(TARGET_GETGROUPS_T)
821 gcc_AC_FUNC_PRINTF_PTR
822 gcc_AC_FUNC_MMAP_BLACKLIST
827 *** UWIN may not be used as a host platform because
828 *** linking with posix.dll is not allowed by the GNU GPL])
831 # Under VMS, vfork works very different than on Unix. The standard test
832 # won't work, and it isn't easily adaptable. It makes more sense to
834 ac_cv_func_vfork_works=yes
840 # Until we have in-tree GNU iconv:
842 AC_SUBST(LIBICONV_DEP)
846 # We will need to find libiberty.h and ansidecl.h
847 saved_CFLAGS="$CFLAGS"
848 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
849 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
850 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
851 fprintf_unlocked strstr errno vasprintf \
852 malloc realloc calloc free basename getopt clock, , ,[
853 #include "ansidecl.h"
854 #include "system.h"])
856 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
857 #include "ansidecl.h"
859 #ifdef HAVE_SYS_RESOURCE_H
860 #include <sys/resource.h>
865 #include "ansidecl.h"
867 #ifdef HAVE_SYS_RESOURCE_H
868 #include <sys/resource.h>
870 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
871 [Define to \`long' if <sys/resource.h> doesn't define.])])
873 gcc_AC_CHECK_DECLS(ldgetname, , ,[
874 #include "ansidecl.h"
881 gcc_AC_CHECK_DECLS(times, , ,[
882 #include "ansidecl.h"
884 #ifdef HAVE_SYS_TIMES_H
885 #include <sys/times.h>
889 # More time-related stuff.
890 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
892 #include "ansidecl.h"
894 #ifdef HAVE_SYS_TIMES_H
895 #include <sys/times.h>
897 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
898 if test $ac_cv_struct_tms = yes; then
899 AC_DEFINE(HAVE_STRUCT_TMS, 1,
900 [Define if <sys/times.h> defines struct tms.])
903 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
904 # revisit after autoconf 2.50.
905 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
907 #include "ansidecl.h"
909 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
910 if test $gcc_cv_type_clock_t = yes; then
911 AC_DEFINE(HAVE_CLOCK_T, 1,
912 [Define if <time.h> defines clock_t.])
915 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
917 #include "ansidecl.h"
920 [if ((uchar *)0) return 0;
921 if (sizeof(uchar)) return 0;],
922 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
923 if test $ac_cv_type_uchar = yes; then
924 AC_DEFINE(HAVE_UCHAR, 1,
925 [Define if <sys/types.h> defines \`uchar'.])
928 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
929 CFLAGS="$saved_CFLAGS"
931 gcc_AC_INITFINI_ARRAY
933 # mkdir takes a single argument on some systems.
934 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
942 # With Setjmp/Longjmp based exception handling.
943 AC_ARG_ENABLE(sjlj-exceptions,
944 [ --enable-sjlj-exceptions
945 arrange to use setjmp/longjmp exception handling],
946 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
947 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
948 [Define 0/1 to force the choice for exception handling model.])])
950 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
951 # Use libunwind based exception handling.
952 AC_ARG_ENABLE(libunwind-exceptions,
953 [ --enable-libunwind-exceptions force use libunwind for exceptions],
954 use_libunwind_exceptions=$enableval,
955 use_libunwind_exceptions=$use_libunwind_default)
956 if test x"$use_libunwind_exceptions" = xyes; then
957 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
958 [Define if gcc should use -lunwind.])
961 # --------------------------------------------------------
962 # Build, host, and target specific configuration fragments
963 # --------------------------------------------------------
965 # Collect build-machine-specific information.
966 . ${srcdir}/config.build
968 # Collect host-machine-specific information.
969 . ${srcdir}/config.host
973 # Collect target-machine-specific information.
974 for machine in $target ; do
975 . ${srcdir}/config.gcc
978 extra_objs="${host_extra_objs} ${extra_objs}"
980 # Default the target-machine variables that were not explicitly set.
981 if test x"$tm_file" = x
982 then tm_file=$cpu_type/$cpu_type.h; fi
984 if test x"$extra_headers" = x
985 then extra_headers=; fi
987 if test x$md_file = x
988 then md_file=$cpu_type/$cpu_type.md; fi
990 if test x$out_file = x
991 then out_file=$cpu_type/$cpu_type.c; fi
993 if test x"$tmake_file" = x
994 then tmake_file=$cpu_type/t-$cpu_type
997 if test x"$dwarf2" = xyes
998 then tm_file="$tm_file tm-dwarf2.h"
1001 # Say what files are being used for the output code and MD file.
1002 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1003 echo "Using \`$srcdir/config/$md_file' as machine description file."
1005 # If any of the xm_file variables contain nonexistent files, warn
1006 # about them and drop them.
1009 for x in $build_xm_file; do
1010 if test -f $srcdir/config/$x
1012 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1018 for x in $host_xm_file; do
1019 if test -f $srcdir/config/$x
1021 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1027 for x in $xm_file; do
1028 if test -f $srcdir/config/$x
1030 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1036 for f in $tm_file; do
1039 if test $count = ax; then
1040 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1042 echo "Using the following target machine macro files:"
1043 for f in $tm_file; do
1044 echo " $srcdir/config/$f"
1048 if test x$need_64bit_hwint = xyes; then
1049 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1050 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1054 for f in $host_xm_file; do
1057 if test $count = a; then
1059 elif test $count = ax; then
1060 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1062 echo "Using the following host machine macro files:"
1063 for f in $host_xm_file; do
1064 echo " $srcdir/config/$f"
1067 echo "Using ${out_host_hook_obj} for host machine hooks."
1069 if test "$host_xm_file" != "$build_xm_file"; then
1071 for f in $build_xm_file; do
1074 if test $count = a; then
1076 elif test $count = ax; then
1077 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1079 echo "Using the following build machine macro files:"
1080 for f in $build_xm_file; do
1081 echo " $srcdir/config/$f"
1086 if test x$thread_file = x; then
1087 if test x$target_thread_file != x; then
1088 thread_file=$target_thread_file
1090 thread_file='single'
1094 if test x$enable___cxa_atexit = xyes || \
1095 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1096 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1097 [Define if you want to use __cxa_atexit, rather than atexit, to
1098 register C++ destructors for local statics and global objects.
1099 This is essential for fully standards-compliant handling of
1100 destructors, but requires __cxa_atexit in libc.])
1103 # Look for a file containing extra machine modes.
1104 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1105 extra_modes_file='$(srcdir)'/config/${extra_modes}
1106 AC_SUBST(extra_modes_file)
1107 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1108 [Define to the name of a file containing a list of extra machine modes
1109 for this architecture.])
1110 AC_DEFINE(EXTRA_CC_MODES, 1,
1111 [Define if the target architecture needs extra machine modes to represent
1112 the results of comparisons.])
1115 # auto-host.h is the file containing items generated by autoconf and is
1116 # the first file included by config.h.
1117 # If host=build, it is correct to have bconfig include auto-host.h
1118 # as well. If host!=build, we are in error and need to do more
1119 # work to find out the build config parameters.
1120 if test x$host = x$build
1122 build_auto=auto-host.h
1125 # We create a subdir, then run autoconf in the subdir.
1126 # To prevent recursion we set host and build for the new
1127 # invocation of configure to the build for this invocation
1134 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1135 *) realsrcdir=../${srcdir};;
1137 saved_CFLAGS="${CFLAGS}"
1138 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1139 ${realsrcdir}/configure \
1140 --target=$target_alias --host=$build_alias --build=$build_alias
1141 CFLAGS="${saved_CFLAGS}"
1143 # We just finished tests for the build machine, so rename
1144 # the file auto-build.h in the gcc directory.
1145 mv auto-host.h ../auto-build.h
1148 build_auto=auto-build.h
1149 FORBUILD=../${build_subdir}
1153 tm_file="${tm_file} defaults.h"
1154 tm_p_file="${tm_p_file} tm-preds.h"
1155 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1156 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1157 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1158 # put this back in temporarily.
1159 xm_file="ansidecl.h ${xm_file}"
1165 # Get the version trigger filename from the toplevel
1166 if test "${with_gcc_version_trigger+set}" = set; then
1167 gcc_version_trigger=$with_gcc_version_trigger
1169 gcc_version_trigger=${srcdir}/version.c
1172 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1173 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1175 # Compile in configure arguments.
1176 if test -f configargs.h ; then
1177 # Being re-configured.
1178 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1179 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1181 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1184 # Double all backslashes and backslash all quotes to turn
1185 # gcc_config_arguments into a C string.
1186 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1187 $gcc_config_arguments
1189 gcc_config_arguments_str=`cat conftest.out`
1192 cat > configargs.h <<EOF
1193 /* Generated automatically. */
1194 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1195 static const char thread_model[] = "$thread_file";
1197 static const struct {
1198 const char *name, *value;
1199 } configure_default_options[] = $configure_default_options;
1203 # Internationalization
1205 VERSION="$gcc_version"
1209 ZW_GNU_GETTEXT_SISTER_DIR
1211 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1212 # -liconv on the link line twice.
1213 case "$LIBINTL" in *$LIBICONV*)
1217 # Windows32 Registry support for specifying GCC installation paths.
1218 AC_ARG_ENABLE(win32-registry,
1219 [ --disable-win32-registry
1220 disable lookup of installation paths in the
1221 Registry on Windows hosts
1222 --enable-win32-registry enable registry lookup (default)
1223 --enable-win32-registry=KEY
1224 use KEY instead of GCC version as the last portion
1225 of the registry key],,)
1227 win32 | pe | cygwin* | mingw32* | uwin*)
1228 AC_MSG_CHECKING(whether windows registry support is requested)
1229 if test "x$enable_win32_registry" != xno; then
1230 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1231 [Define to 1 if installation paths should be looked up in Windows32
1232 Registry. Ignored on non windows32 hosts.])
1234 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1239 # Check if user specified a different registry key.
1240 case "x${enable_win32_registry}" in
1243 gcc_cv_win32_registry_key="$VERSION"
1246 # no registry lookup.
1247 gcc_cv_win32_registry_key=''
1250 # user-specified key.
1251 gcc_cv_win32_registry_key="$enable_win32_registry"
1255 if test "x$enable_win32_registry" != xno; then
1256 AC_MSG_CHECKING(registry key on windows hosts)
1257 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1258 [Define to be the last portion of registry key on windows hosts.])
1259 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1264 # Get an absolute path to the GCC top-level source directory
1265 holddir=`${PWDCMD-pwd}`
1267 topdir=`${PWDCMD-pwd}`
1270 # Conditionalize the makefile for this host machine.
1272 for f in ${host_xmake_file}
1274 if test -f ${srcdir}/config/$f
1276 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1280 # Conditionalize the makefile for this target machine.
1282 for f in ${tmake_file}
1284 if test -f ${srcdir}/config/$f
1286 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1289 tmake_file="${tmake_file_}"
1291 symbolic_link='ln -s'
1293 # If the host doesn't support symlinks, modify CC in
1294 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1295 # Otherwise, we can use "CC=$(CC)".
1297 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1299 cc_set_by_configure="\$(CC)"
1300 quoted_cc_set_by_configure="\$(CC)"
1301 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1302 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1305 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1307 symbolic_link="cp -p"
1311 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1312 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1313 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1314 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1318 out_object_file=`basename $out_file .c`.o
1322 for f in $tm_file; do
1325 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1326 tm_include_list="${tm_include_list} $f"
1329 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1330 tm_include_list="${tm_include_list} config/$f"
1337 for f in $tm_p_file; do
1340 tm_p_file_list="${tm_p_file_list} $f"
1341 tm_p_include_list="${tm_p_include_list} $f"
1344 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1345 tm_p_include_list="${tm_p_include_list} config/$f"
1351 for f in $xm_file; do
1354 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1355 xm_include_list="${xm_include_list} $f"
1358 xm_file_list="${xm_file_list} $f"
1359 xm_include_list="${xm_include_list} $f"
1362 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1363 xm_include_list="${xm_include_list} config/$f"
1369 host_xm_include_list=
1370 for f in $host_xm_file; do
1373 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1374 host_xm_include_list="${host_xm_include_list} $f"
1377 host_xm_file_list="${host_xm_file_list} $f"
1378 host_xm_include_list="${host_xm_include_list} $f"
1381 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1382 host_xm_include_list="${host_xm_include_list} config/$f"
1388 for f in $build_xm_file; do
1391 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1392 build_xm_include_list="${build_xm_include_list} $f"
1394 auto-build.h | auto-host.h )
1395 build_xm_file_list="${build_xm_file_list} $f"
1396 build_xm_include_list="${build_xm_include_list} $f"
1399 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1400 build_xm_include_list="${build_xm_include_list} config/$f"
1405 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1406 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1407 CROSS= AC_SUBST(CROSS)
1408 ALL=all.internal AC_SUBST(ALL)
1409 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1410 if test x$host != x$target
1412 CROSS="-DCROSS_COMPILE"
1414 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1415 case "$host","$target" in
1416 # Darwin crosses can use the host system's libraries and headers,
1417 # because of the fat library support. Of course, it must be the
1418 # same version of Darwin on both sides. Allow the user to
1419 # just say --target=foo-darwin without a version number to mean
1420 # "the version on this system".
1421 *-*-darwin*,*-*-darwin*)
1422 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1423 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1424 if test $hostos = $targetos -o $targetos = darwin ; then
1426 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1431 i?86-*-*,x86_64-*-* \
1432 | powerpc*-*-*,powerpc64*-*-*)
1433 CROSS="$CROSS -DNATIVE_CROSS" ;;
1435 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1436 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1437 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1440 # If this is a cross-compiler that does not
1441 # have its own set of headers then define
1444 # If this is using newlib, without having the headers available now,
1445 # then define inhibit_libc in LIBGCC2_CFLAGS.
1446 # This prevents libgcc2 from containing any code which requires libc
1449 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1450 test x$with_newlib = xyes ; } &&
1451 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1452 inhibit_libc=-Dinhibit_libc
1454 AC_SUBST(inhibit_libc)
1456 # When building gcc with a cross-compiler, we need to adjust things so
1457 # that the generator programs are still built with the native compiler.
1458 # Also, we cannot run fixincludes or fix-header.
1460 # These are the normal (build=host) settings:
1461 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1462 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1463 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1464 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1466 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1467 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1469 # And these apply if build != host, or we are generating coverage data
1470 if test x$build != x$host || test "x$coverage_flags" != x
1473 BUILD_PREFIX_1=build-
1474 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1476 if test "x$TARGET_SYSTEM_ROOT" = x; then
1482 # Expand extra_headers to include complete path.
1483 # This substitutes for lots of t-* files.
1485 if test "x$extra_headers" = x
1488 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1489 for file in $extra_headers;
1491 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1495 # Add a definition of USE_COLLECT2 if system wants one.
1496 case $use_collect2 in
1497 no) use_collect2= ;;
1500 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1501 xm_defines="${xm_defines} USE_COLLECT2"
1505 # Identify the assembler which will work hand-in-glove with the newly
1506 # built GCC, so that we can examine its features. This is the assembler
1507 # which will be driven by the driver program.
1509 # If build != host, and we aren't building gas in-tree, we identify a
1510 # build->target assembler and hope that it will have the same features
1511 # as the host->target assembler we'll be using.
1512 AC_MSG_CHECKING(what assembler to use)
1515 gcc_cv_gas_major_version=
1516 gcc_cv_gas_minor_version=
1517 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1518 if test -x "$DEFAULT_ASSEMBLER"; then
1519 gcc_cv_as="$DEFAULT_ASSEMBLER"
1520 elif test -x "$AS"; then
1522 elif test -x as$host_exeext; then
1523 # Build using assembler in the current directory.
1524 gcc_cv_as=./as$host_exeext
1525 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1526 && test -f ../gas/Makefile; then
1527 # Single tree build which includes gas.
1529 _gcc_COMPUTE_GAS_VERSION
1530 rm -f as$host_exeext
1531 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1532 in_tree_gas_is_elf=no
1533 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1534 || (grep 'obj_format = multi' ../gas/Makefile \
1535 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1537 in_tree_gas_is_elf=yes
1541 if test "x$gcc_cv_as" = x; then
1542 # Search the same directories that the installed compiler will
1543 # search. Else we may find the wrong assembler and lose. If we
1544 # do not find a suitable assembler binary, then try the user's
1547 # Also note we have to check MD_EXEC_PREFIX before checking the
1548 # user's path. Unfortunately, there is no good way to get at the
1549 # value of MD_EXEC_PREFIX here. So we do a brute force search
1550 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1551 # to be fixed as part of the make/configure rewrite too.
1553 if test "x$exec_prefix" = xNONE; then
1554 if test "x$prefix" = xNONE; then
1555 test_prefix=/usr/local
1560 test_prefix=$exec_prefix
1563 # If the loop below does not find an assembler, then use whatever
1564 # one we can find in the users's path.
1566 if test "x$program_prefix" != xNONE; then
1567 gcc_cv_as=${program_prefix}as$host_exeext
1569 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1572 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1573 $test_prefix/lib/gcc-lib/$target_alias \
1574 /usr/lib/gcc/$target_alias/$gcc_version \
1575 /usr/lib/gcc/$target_alias \
1576 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1577 $test_prefix/$target_alias/bin"
1579 if test x$host = x$target; then
1580 test_dirs="$test_dirs \
1585 /bsd43/usr/lib/cmplrs/cc \
1586 /usr/cross64/usr/bin \
1587 /usr/lib/cmplrs/cc \
1588 /sysv/usr/lib/cmplrs/cc \
1589 /svr4/usr/lib/cmplrs/cc \
1593 for dir in $test_dirs; do
1594 if test -x $dir/as$host_exeext; then
1595 gcc_cv_as=$dir/as$host_exeext
1600 case $in_tree_gas in
1602 AC_MSG_RESULT("newly built gas")
1605 AC_MSG_RESULT($gcc_cv_as)
1609 # Identify the linker which will work hand-in-glove with the newly
1610 # built GCC, so that we can examine its features. This is the linker
1611 # which will be driven by the driver program.
1613 # If build != host, and we aren't building gas in-tree, we identify a
1614 # build->target linker and hope that it will have the same features
1615 # as the host->target linker we'll be using.
1616 AC_MSG_CHECKING(what linker to use)
1619 gcc_cv_gld_major_version=
1620 gcc_cv_gld_minor_version=
1621 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1622 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1623 if test -x "$DEFAULT_LINKER"; then
1624 gcc_cv_ld="$DEFAULT_LINKER"
1625 elif test -x "$LD"; then
1627 elif test -x collect-ld$host_exeext; then
1628 # Build using linker in the current directory.
1629 gcc_cv_ld=./collect-ld$host_exeext
1630 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1631 && test -f ../ld/Makefile; then
1632 # Single tree build which includes ld.
1634 in_tree_ld_is_elf=no
1635 if (grep 'EMUL = .*elf' ../ld/Makefile \
1636 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1637 in_tree_ld_is_elf=yes
1639 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
1642 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1644 if test x$gcc_cv_gld_version != x; then
1649 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1650 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1652 rm -f collect-ld$host_exeext
1653 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1657 if test "x$gcc_cv_ld" = x; then
1658 # Search the same directories that the installed compiler will
1659 # search. Else we may find the wrong linker and lose. If we
1660 # do not find a suitable linker binary, then try the user's
1663 # Also note we have to check MD_EXEC_PREFIX before checking the
1664 # user's path. Unfortunately, there is no good way to get at the
1665 # value of MD_EXEC_PREFIX here. So we do a brute force search
1666 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1667 # to be fixed as part of the make/configure rewrite too.
1669 if test "x$exec_prefix" = xNONE; then
1670 if test "x$prefix" = xNONE; then
1671 test_prefix=/usr/local
1676 test_prefix=$exec_prefix
1679 # If the loop below does not find an linker, then use whatever
1680 # one we can find in the users's path.
1682 if test "x$program_prefix" != xNONE; then
1683 gcc_cv_ld=${program_prefix}ld$host_exeext
1685 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1688 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1689 $test_prefix/lib/gcc-lib/$target_alias \
1690 /usr/lib/gcc/$target_alias/$gcc_version \
1691 /usr/lib/gcc/$target_alias \
1692 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1693 $test_prefix/$target_alias/bin"
1695 if test x$host = x$target; then
1696 test_dirs="$test_dirs \
1701 /bsd43/usr/lib/cmplrs/cc \
1702 /usr/cross64/usr/bin \
1703 /usr/lib/cmplrs/cc \
1704 /sysv/usr/lib/cmplrs/cc \
1705 /svr4/usr/lib/cmplrs/cc \
1709 for dir in $test_dirs; do
1710 if test -x $dir/ld$host_exeext; then
1711 gcc_cv_ld=$dir/ld$host_exeext
1718 AC_MSG_RESULT("newly built ld")
1721 AC_MSG_RESULT($gcc_cv_ld)
1725 # Figure out what nm we will be using.
1726 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1727 AC_MSG_CHECKING(what nm to use)
1729 if test -x nm$host_exeext; then
1730 gcc_cv_nm=./nm$host_exeext
1731 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1732 && test -f ../binutils/Makefile; then
1733 # Single tree build which includes binutils.
1735 gcc_cv_nm=./nm$host_exeext
1736 rm -f nm$host_exeext
1737 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1738 elif test "x$program_prefix" != xNONE; then
1739 gcc_cv_nm=${program_prefix}nm$host_exeext
1741 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1744 yes) AC_MSG_RESULT("newly built nm") ;;
1745 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1748 # Figure out what objdump we will be using.
1749 AC_MSG_CHECKING(what objdump to use)
1751 if test -x objdump$host_exeext; then
1752 gcc_cv_objdump=./objdump$host_exeext
1753 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1754 && test -f ../binutils/Makefile; then
1755 # Single tree build which includes binutils.
1757 gcc_cv_objdump=./objdump$host_exeext
1758 rm -f objdump$host_exeext
1759 $symbolic_link ../binutils/objdump$host_exeext \
1760 objdump$host_exeext 2>/dev/null
1761 elif test "x$program_prefix" != xNONE; then
1762 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1764 gcc_cv_objdump=`echo objdump | \
1765 sed ${program_transform_name}`$host_exeext
1767 case $in_tree_objdump in
1768 yes) AC_MSG_RESULT("newly built objdump") ;;
1769 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1772 # Figure out what assembler alignment features are present.
1773 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1777 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1778 [Define if your assembler supports .balign and .p2align.])])
1780 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1783 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1784 [Define if your assembler supports specifying the maximum number
1785 of bytes to skip when using the GAS .p2align command.])])
1787 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1789 [conftest_label1: .word 0
1791 conftest_label2: .word 0
1793 [if test x$gcc_cv_nm != x; then
1794 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1795 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1796 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1798 else gcc_cv_as_subsection_m1=yes
1800 rm -f conftest.nm1 conftest.nm2
1802 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1803 [Define if your assembler supports .subsection and .subsection -1 starts
1804 emitting at the beginning of your section.])])
1806 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1809 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1811 # .hidden needs to be supported in both the assembler and the linker,
1812 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1813 # This is irritatingly difficult to feature test for; we have to check the
1814 # date string after the version number. If we've got an in-tree
1815 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1817 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1818 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1823 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1824 [if test $in_tree_ld = yes ; then
1826 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1827 && test $in_tree_ld_is_elf = yes; then
1828 gcc_cv_ld_hidden=yes
1831 gcc_cv_ld_hidden=yes
1832 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1833 if echo "$ld_ver" | grep GNU > /dev/null; then
1835 ld_vers=`echo $ld_ver | sed -n \
1836 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1837 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1838 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1839 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1840 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1841 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1842 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1843 if test 0"$ld_date" -lt 20020404; then
1844 if test -n "$ld_date"; then
1845 # If there was date string, but was earlier than 2002-04-04, fail
1847 elif test -z "$ld_vers"; then
1848 # If there was no date string nor ld version number, something is wrong
1851 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1852 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1853 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1854 test -z "$ld_vers_patch" && ld_vers_patch=0
1855 if test "$ld_vers_major" -lt 2; then
1857 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1858 gcc_cv_ld_hidden="no"
1859 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1866 # non-GNU linkers don't seem to support .hidden yet
1867 if test x"$gnu_ld_flag" = x"no"; then
1872 libgcc_visibility=no
1873 AC_SUBST(libgcc_visibility)
1874 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1875 libgcc_visibility=yes
1876 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1877 [Define if your assembler and linker support .hidden.])
1880 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1881 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1889 [# GAS versions before 2.11 do not support uleb128,
1890 # despite appearing to.
1891 # ??? There exists an elf-specific test that will crash
1892 # the assembler. Perhaps it's better to figure out whether
1893 # arbitrary sections are supported and try the test.
1894 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
1895 if echo "$as_ver" | grep GNU > /dev/null; then
1897 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1898 as_major=`echo $as_ver | sed 's/\..*//'`
1899 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1901 if test $as_major -eq 2 && test $as_minor -lt 11
1903 else gcc_cv_as_leb128=yes
1906 [AC_DEFINE(HAVE_AS_LEB128, 1,
1907 [Define if your assembler supports .sleb128 and .uleb128.])])
1909 # GAS versions up to and including 2.11.0 may mis-optimize
1911 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1919 .section .eh_frame,"aw",@progbits
1921 .4byte .LECIE1-.LSCIE1
1935 .4byte .LEFDE1-.LASFDE1
1937 .4byte .LASFDE1-__FRAME_BEGIN__
1945 [ cat > conftest.lit <<EOF
1946 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1947 0010 01000000 12000000 18000000 00000000 ................
1948 0020 08000000 04080000 0044 .........D
1950 cat > conftest.big <<EOF
1951 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1952 0010 00000001 00000012 00000018 00000000 ................
1953 0020 00000008 04000000 0844 .........D
1955 # If the assembler didn't choke, and we can objdump,
1956 # and we got the correct data, then succeed.
1957 if test x$gcc_cv_objdump != x \
1958 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1959 | tail -3 > conftest.got \
1960 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1961 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1963 gcc_cv_as_eh_frame=yes
1964 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
1965 gcc_cv_as_eh_frame=buggy
1967 # Uh oh, what do we do now?
1968 gcc_cv_as_eh_frame=no
1971 if test $gcc_cv_as_eh_frame = buggy; then
1972 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1973 [Define if your assembler mis-optimizes .eh_frame data.])
1976 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
1977 [elf,2,12,0], [--fatal-warnings],
1978 [.section .rodata.str, "aMS", @progbits, 1],,
1979 [AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1980 [Define if your assembler supports marking sections with SHF_MERGE flag.])])
1982 # Thread-local storage - the check is heavily parametrized.
1991 .section ".tdata","awT",@progbits
1994 ldq $27,__tls_get_addr($29) !literal!1
1995 lda $16,foo($29) !tlsgd!1
1996 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1997 ldq $27,__tls_get_addr($29) !literal!2
1998 lda $16,foo($29) !tlsldm!2
1999 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2000 ldq $1,foo($29) !gotdtprel
2001 ldah $2,foo($29) !dtprelhi
2002 lda $3,foo($2) !dtprello
2003 lda $4,foo($29) !dtprel
2004 ldq $1,foo($29) !gottprel
2005 ldah $2,foo($29) !tprelhi
2006 lda $3,foo($2) !tprello
2007 lda $4,foo($29) !tprel'
2013 .section ".tdata","awT",@progbits
2017 leal foo@TLSGD(,%ebx,1), %eax
2018 leal foo@TLSLDM(%ebx), %eax
2019 leal foo@DTPOFF(%eax), %edx
2020 movl foo@GOTTPOFF(%ebx), %eax
2021 subl foo@GOTTPOFF(%ebx), %eax
2022 addl foo@GOTNTPOFF(%ebx), %eax
2023 movl foo@INDNTPOFF, %eax
2024 movl $foo@TPOFF, %eax
2025 subl $foo@TPOFF, %eax
2026 leal foo@NTPOFF(%ecx), %eax'
2032 .section ".tdata","awT",@progbits
2036 leaq foo@TLSGD(%rip), %rdi
2037 leaq foo@TLSLD(%rip), %rdi
2038 leaq foo@DTPOFF(%rax), %rdx
2039 movq foo@GOTTPOFF(%rip), %rax
2040 movq $foo@TPOFF, %rax'
2046 .section ".tdata","awT",@progbits
2049 addl r16 = @ltoff(@dtpmod(foo#)), gp
2050 addl r17 = @ltoff(@dtprel(foo#)), gp
2051 addl r18 = @ltoff(@tprel(foo#)), gp
2052 addl r19 = @dtprel(foo#), gp
2053 adds r21 = @dtprel(foo#), r13
2054 movl r23 = @dtprel(foo#)
2055 addl r20 = @tprel(foo#), gp
2056 adds r22 = @tprel(foo#), r13
2057 movl r24 = @tprel(foo#)'
2063 .section ".tdata","awT",@progbits
2071 addi 3,31,ld0@got@tlsgd
2073 addi 3,31,x1@got@tlsld
2076 addis 9,3,x2@dtprel@ha
2077 addi 9,9,x2@dtprel@l
2078 lwz 9,x3@got@tprel(31)
2081 addis 9,2,x2@tprel@ha
2082 addi 9,9,x2@tprel@l'
2089 .section ".tdata","awT",@progbits
2097 addi 3,2,ld0@got@tlsgd
2103 addi 3,2,x1@got@tlsld
2109 addis 9,3,x2@dtprel@ha
2110 addi 9,9,x2@dtprel@l
2113 ld 9,x3@got@dtprel(2)
2123 .section ".tdata","awT",@progbits
2132 l %r1,foo@GOTNTPOFF(%r12)
2133 l %r1,0(%r1):tls_load:foo
2134 bas %r14,0(%r1,%r13):tls_gdcall:foo
2135 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2142 .section ".tdata","awT",@progbits
2150 lg %r1,foo@GOTNTPOFF(%r12)
2151 larl %r1,foo@INDNTPOFF
2152 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2153 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2156 tls_as_opt="-m64 -Aesame"
2160 .section ".tdata","awT",@progbits
2163 sethi %tgd_hi22(foo), %o0
2164 add %o0, %tgd_lo10(foo), %o1
2165 add %l7, %o1, %o0, %tgd_add(foo)
2166 call __tls_get_addr, %tgd_call(foo)
2167 sethi %tldm_hi22(foo), %l1
2168 add %l1, %tldm_lo10(foo), %l2
2169 add %l7, %l2, %o0, %tldm_add(foo)
2170 call __tls_get_addr, %tldm_call(foo)
2171 sethi %tldo_hix22(foo), %l3
2172 xor %l3, %tldo_lox10(foo), %l4
2173 add %o0, %l4, %l5, %tldo_add(foo)
2174 sethi %tie_hi22(foo), %o3
2175 add %o3, %tie_lo10(foo), %o3
2176 ld [%l7 + %o3], %o2, %tie_ld(foo)
2177 add %g7, %o2, %o4, %tie_add(foo)
2178 sethi %tle_hix22(foo), %l1
2179 xor %l1, %tle_lox10(foo), %o5
2180 ld [%g7 + %o5], %o1'
2187 if test -z "$tls_first_major"; then
2188 : # If we don't have a check, assume no support.
2190 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2191 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt --fatal-warnings],
2193 [AC_DEFINE(HAVE_AS_TLS, 1,
2194 [Define if your assembler supports thread-local storage.])])
2197 # Target-specific assembler checks.
2200 # All TARGET_ABI_OSF targets.
2201 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2202 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2203 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2206 extbl $3, $2, $3 !lituse_bytoff!1
2207 ldq $2, a($29) !literal!1
2208 ldq $4, b($29) !literal!2
2209 ldq_u $3, 0($2) !lituse_base!1
2210 ldq $27, f($29) !literal!5
2211 jsr $26, ($27), f !lituse_jsr!5
2212 ldah $29, 0($26) !gpdisp!3
2213 lda $0, c($29) !gprel
2214 ldah $1, d($29) !gprelhigh
2215 lda $1, d($1) !gprellow
2216 lda $29, 0($29) !gpdisp!3],,
2217 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2218 [Define if your assembler supports explicit relocations.])])
2222 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2223 [.register %g2, #scratch],,
2224 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2225 [Define if your assembler supports .register.])])
2227 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2229 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2230 [Define if your assembler supports -relax option.])])
2232 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2233 gcc_cv_as_sparc_ua_pcrel,,
2241 .uaword %r_disp32(foo)],
2242 [if test x$gcc_cv_ld != x \
2243 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2244 gcc_cv_as_sparc_ua_pcrel=yes
2247 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2248 [Define if your assembler and linker support unaligned PC relative relocs.])
2250 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2251 gcc_cv_as_sparc_ua_pcrel_hidden,,
2256 .uaword %r_disp32(foo)
2257 .byte 0x32, 0x33, 0x34
2262 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2263 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2264 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2265 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2266 if $gcc_cv_objdump -R conftest 2> /dev/null \
2267 | grep 'DISP32' > /dev/null 2>&1; then
2270 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2274 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2275 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2276 ]) # unaligned pcrel relocs
2278 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2279 gcc_cv_as_sparc_offsetable_lo10,,
2282 or %g1, %lo(ab) + 12, %g1
2283 or %g1, %lo(ab + 12), %g1],
2284 [if test x$gcc_cv_objdump != x \
2285 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2286 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2287 gcc_cv_as_offsetable_lo10=yes
2289 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2290 [Define if your assembler supports offsetable %lo().])])
2294 i[34567]86-*-* | x86_64-*-*)
2296 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2297 gcc_cv_as_ix86_filds_fists,
2298 [2,9,0],, [filds mem; fists mem],,
2299 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2300 [Define if your assembler uses the new HImode fild and fist notation.])])
2302 gcc_GAS_CHECK_FEATURE([cmov syntax],
2303 gcc_cv_as_ix86_cmov_sun_syntax,,,
2304 [cmovl.l %edx, %eax],,
2305 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2306 [Define if your assembler supports the Sun syntax for cmov.])])
2308 # This one is used unconditionally by i386.[ch]; it is to be defined
2309 # to 1 if the feature is present, 0 otherwise.
2310 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2311 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2317 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2318 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2319 [Define true if the assembler supports '.long foo@GOTOFF'.])
2323 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2324 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2326 addl r15 = @ltoffx(x#), gp
2328 ld8.mov r16 = [[r15]], x#],,
2329 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2330 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2336 *-*-aix) conftest_s=' .csect .text[PR]';;
2337 *) conftest_s=' .text';;
2339 conftest_s="$conftest_s
2342 gcc_GAS_CHECK_FEATURE([mfcr field support],
2343 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2345 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2346 [Define if your assembler supports mfcr field.])])
2350 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2351 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2352 [ lw $4,%gp_rel(foo)($4)],,
2353 [if test x$target_cpu_default = x
2354 then target_cpu_default=MASK_EXPLICIT_RELOCS
2355 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2360 # ??? Not all targets support dwarf2 debug_line, even within a version
2361 # of gas. Moreover, we need to emit a valid instruction to trigger any
2362 # info to the output file. So, as supported targets are added to gas 2.11,
2363 # add some instruction here to (also) show we expect this might work.
2364 # ??? Once 2.11 is released, probably need to add first known working
2365 # version to the per-target configury.
2367 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2368 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2369 | xstormy16*-*-* | cris-*-*)
2379 if test x"$insn" != x; then
2381 .file 1 \"conftest.s\"
2384 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2385 gcc_cv_as_dwarf2_debug_line,
2386 [elf,2,11,0],, [$conftest_s],
2387 [# ??? This fails with non-gnu grep. Maybe use objdump?
2388 if grep debug_line conftest.o > /dev/null 2>&1; then
2389 gcc_cv_as_dwarf2_debug_line=yes
2392 # The .debug_line file table must be in the exact order that
2393 # we specified the files, since these indices are also used
2394 # by DW_AT_decl_file. Approximate this test by testing if
2395 # the assembler bitches if the same index is assigned twice.
2396 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2397 gcc_cv_as_dwarf2_file_buggy,,,
2401 if test $gcc_cv_as_dwarf2_debug_line = yes \
2402 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2403 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2404 [Define if your assembler supports dwarf2 .file/.loc directives,
2405 and preserves file table indices exactly as given.])
2408 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2409 gcc_cv_as_gdwarf2_flag,
2410 [elf,2,11,0], [--gdwarf2], [$insn],,
2411 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2412 [Define if your assembler supports the --gdwarf2 option.])])
2414 gcc_GAS_CHECK_FEATURE([--gstabs option],
2415 gcc_cv_as_gstabs_flag,
2416 [elf,2,11,0], [--gstabs], [$insn],
2417 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2418 # and warns about it, but still exits successfully. So check for
2420 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2422 else gcc_cv_as_gstabs_flag=yes
2424 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2425 [Define if your assembler supports the --gstabs option.])])
2428 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2429 gcc_cv_ld_ro_rw_mix=unknown
2430 if test $in_tree_ld = yes ; then
2431 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2432 && test $in_tree_ld_is_elf = yes; then
2433 gcc_cv_ld_ro_rw_mix=read-write
2435 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2436 echo '.section myfoosect, "a"' > conftest1.s
2437 echo '.section myfoosect, "aw"' > conftest2.s
2438 echo '.byte 1' >> conftest2.s
2439 echo '.section myfoosect, "a"' > conftest3.s
2440 echo '.byte 0' >> conftest3.s
2441 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2442 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2443 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2444 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2445 conftest2.o conftest3.o > /dev/null 2>&1; then
2446 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2447 | sed -e '/myfoosect/!d' -e N`
2448 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2449 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2450 gcc_cv_ld_ro_rw_mix=read-only
2452 gcc_cv_ld_ro_rw_mix=read-write
2457 rm -f conftest.* conftest[123].*
2460 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2461 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2462 [Define if your linker links a mix of read-only
2463 and read-write sections into a read-write section.])
2465 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2467 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2468 gcc_cv_ld_eh_frame_hdr=no
2469 if test $in_tree_ld = yes ; then
2470 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2471 && test $in_tree_ld_is_elf = yes; then
2472 gcc_cv_ld_eh_frame_hdr=yes
2474 elif test x$gcc_cv_ld != x; then
2475 # Check if linker supports --eh-frame-hdr option
2476 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2477 gcc_cv_ld_eh_frame_hdr=yes
2480 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2481 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2482 [Define if your linker supports --eh-frame-hdr option.])
2484 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2486 AC_MSG_CHECKING(linker position independent executable support)
2488 if test $in_tree_ld = yes ; then
2489 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2490 && test $in_tree_ld_is_elf = yes; then
2493 elif test x$gcc_cv_ld != x; then
2494 # Check if linker supports -pie option
2495 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2499 if test x"$gcc_cv_ld_pie" = xyes; then
2500 AC_DEFINE(HAVE_LD_PIE, 1,
2501 [Define if your linker supports -pie option.])
2503 AC_MSG_RESULT($gcc_cv_ld_pie)
2505 # Miscellaneous target-specific checks.
2508 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2509 gcc_cv_mips_libgloss_startup=no
2510 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2511 if test "x$exec_prefix" = xNONE; then
2512 if test "x$prefix" = xNONE; then
2513 test_prefix=/usr/local
2518 test_prefix=$exec_prefix
2520 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2522 if grep '^STARTUP' $f > /dev/null 2>&1; then
2523 gcc_cv_mips_libgloss_startup=yes
2527 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2528 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2529 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2531 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2535 if test x$with_sysroot = x && test x$host = x$target \
2536 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2537 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2538 [Define to PREFIX/include if cpp should also search that directory.])
2541 # Figure out what language subdirectories are present.
2542 # Look if the user specified --enable-languages="..."; if not, use
2543 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2545 # NB: embedded tabs in this IF block -- do not untabify
2546 if test x"${enable_languages+set}" != xset; then
2547 if test x"${LANGUAGES+set}" = xset; then
2548 enable_languages="${LANGUAGES}"
2549 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2552 enable_languages=all
2555 if test x"${enable_languages}" = x \
2556 || test x"${enable_languages}" = xyes;
2558 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2561 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2563 # First scan to see if an enabled language requires some other language.
2564 # We assume that a given config-lang.in will list all the language
2565 # front ends it requires, even if some are required indirectly.
2566 for lang in ${srcdir}/*/config-lang.in
2569 # The odd quoting in the next line works around
2570 # an apparent bug in bash 1.12 on linux.
2572 ${srcdir}/[*]/config-lang.in)
2575 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2576 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2577 for other in $this_lang_requires
2579 case ,${enable_languages}, in
2585 enable_languages="$enable_languages,$other"
2594 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2597 for lang in ${srcdir}/*/config-lang.in
2600 # The odd quoting in the next line works around
2601 # an apparent bug in bash 1.12 on linux.
2603 ${srcdir}/[*]/config-lang.in) ;;
2605 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2606 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2607 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2608 if test "x$lang_alias" = x
2610 echo "$lang doesn't set \$language." 1>&2
2613 case ${build_by_default},${enable_languages}, in
2614 *,$lang_alias,*) add_this_lang=yes ;;
2615 no,*) add_this_lang=no ;;
2616 *,all,*) add_this_lang=yes ;;
2617 *) add_this_lang=no ;;
2619 found_languages="${found_languages} ${lang_alias}"
2620 if test x"${add_this_lang}" = xyes; then
2622 ${srcdir}/ada/config-lang.in)
2623 if test x$have_gnat = xyes ; then
2624 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2628 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2638 for expected_language in ${expected_languages} ..
2640 if test "${expected_language}" != ..; then
2641 missing_language="${expected_language}"
2642 if test "${expected_language}" = "c" \
2643 || test "${expected_language}" = "all"; then
2646 for found_language in ${found_languages} ..
2648 if test "${found_language}" != ..; then
2649 if test "${expected_language}" = "${found_language}"; then
2654 if test "x${missing_language}" != x; then
2655 missing_languages="${missing_languages} ${missing_language}"
2660 if test "x$missing_languages" != x; then
2662 The following requested languages were not found:${missing_languages}
2663 The following languages were available: c${found_languages}])
2666 # Make gthr-default.h if we have a thread file.
2668 if test $thread_file != single; then
2669 rm -f gthr-default.h
2670 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2671 gthread_flags=-DHAVE_GTHR_DEFAULT
2673 AC_SUBST(gthread_flags)
2675 # Find out what GC implementation we want, or may, use.
2677 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2684 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2689 echo "Using $GGC for garbage collection."
2691 # Use the system's zlib library.
2693 zlibinc="-I\$(srcdir)/../zlib"
2694 AC_ARG_WITH(system-zlib,
2695 [ --with-system-zlib use installed libz],
2702 dnl Very limited version of automake's enable-maintainer-mode
2704 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2705 dnl maintainer-mode is disabled by default
2706 AC_ARG_ENABLE(maintainer-mode,
2707 [ --enable-maintainer-mode
2708 enable make rules and dependencies not useful
2709 (and sometimes confusing) to the casual installer],
2710 maintainer_mode=$enableval,
2713 AC_MSG_RESULT($maintainer_mode)
2715 if test "$maintainer_mode" = "yes"; then
2722 # Make empty files to contain the specs and options for each language.
2723 # Then add #include lines to for a compiler that has specs and/or options.
2728 for subdir in . $subdirs
2730 if test -f $srcdir/$subdir/lang.opt; then
2731 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2733 if test -f $srcdir/$subdir/lang-specs.h; then
2734 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2736 if test -f $srcdir/$subdir/$subdir-tree.def; then
2737 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2741 # These (without "all_") are set in each config-lang.in.
2742 # `language' must be a single word so is spelled singularly.
2747 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2748 # List of language makefile fragments.
2750 # List of language subdirectory makefiles. Deprecated.
2752 # Files for gengtype
2753 all_gtfiles="$target_gtfiles"
2754 # Files for gengtype with language
2755 all_gtfiles_files_langs=
2756 all_gtfiles_files_files=
2758 # Add the language fragments.
2759 # Languages are added via two mechanisms. Some information must be
2760 # recorded in makefile variables, these are defined in config-lang.in.
2761 # We accumulate them and plug them into the main Makefile.
2762 # The other mechanism is a set of hooks for each of the main targets
2763 # like `clean', `install', etc.
2765 language_hooks="Make-hooks"
2775 . ${srcdir}/$s/config-lang.in
2776 if test "x$language" = x
2778 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2781 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2782 if test -f ${srcdir}/$s/Makefile.in
2783 then all_lang_makefiles="$s/Makefile"
2785 all_languages="$all_languages $language"
2786 if test "x$boot_language" = xyes
2788 all_boot_languages="$all_boot_languages $language"
2790 all_compilers="$all_compilers $compilers"
2791 all_stagestuff="$all_stagestuff $stagestuff"
2792 all_outputs="$all_outputs $outputs"
2793 all_gtfiles="$all_gtfiles $gtfiles"
2796 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2797 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2801 # Pick up gtfiles for c
2804 . ${srcdir}/c-config-lang.in
2805 all_gtfiles="$all_gtfiles $gtfiles"
2808 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2809 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2813 for language in $all_languages
2815 check_languages="$check_languages check-$language"
2818 # Since we can't use `::' targets, we link each language in
2819 # with a set of hooks, reached indirectly via lang.${target}.
2823 target_list="all.build all.cross start.encap rest.encap tags \
2824 info dvi generated-manpages \
2825 install-normal install-common install-info install-man \
2827 mostlyclean clean distclean extraclean maintainer-clean \
2828 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2829 for t in $target_list
2832 for lang in $all_languages
2836 echo "lang.$t: $x" >> Make-hooks
2841 echo "dir ." > .gdbinit
2842 echo "dir ${srcdir}" >> .gdbinit
2843 if test x$gdb_needs_out_file_path = xyes
2845 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2847 if test "x$subdirs" != x; then
2850 echo "dir ${srcdir}/$s" >> .gdbinit
2853 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2855 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2856 # absolute path for gcc_tooldir based on inserting the number of up-directory
2857 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2858 # $(libsubdir)/@(unlibsubdir) based path.
2859 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2860 # make and thus we'd get different behavior depending on where we built the
2862 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2863 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2865 changequote(<<, >>)dnl
2866 # An explanation of the sed strings:
2867 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2868 # -e 's|/$||' match a trailing forward slash and eliminates it
2869 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2870 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2872 # (*) Note this pattern overwrites the first character of the string
2873 # with a forward slash if one is not already present. This is not a
2874 # problem because the exact names of the sub-directories concerned is
2875 # unimportant, just the number of them matters.
2877 # The practical upshot of these patterns is like this:
2879 # prefix exec_prefix result
2880 # ------ ----------- ------
2882 # /foo/ /foo/bar ../
2883 # /foo /foo/bar/ ../
2884 # /foo/ /foo/bar/ ../
2885 # /foo /foo/bar/ugg ../../
2888 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2889 changequote([, ])dnl
2891 AC_SUBST(gcc_tooldir)
2894 # Find a directory in which to install a shared libgcc.
2896 AC_ARG_ENABLE(version-specific-runtime-libs,
2897 [ --enable-version-specific-runtime-libs
2898 specify that runtime libraries should be
2899 installed in a compiler-specific directory])
2901 AC_ARG_WITH(slibdir,
2902 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2903 slibdir="$with_slibdir",
2904 if test "${enable_version_specific_runtime_libs+set}" = set; then
2905 slibdir='$(libsubdir)'
2906 elif test "$host" != "$target"; then
2907 slibdir='$(build_tooldir)/lib'
2913 objdir=`${PWDCMD-pwd}`
2916 # Substitute configuration variables
2919 AC_SUBST(all_boot_languages)
2920 AC_SUBST(all_compilers)
2921 AC_SUBST(all_gtfiles)
2922 AC_SUBST(all_gtfiles_files_langs)
2923 AC_SUBST(all_gtfiles_files_files)
2924 AC_SUBST(all_lang_makefrags)
2925 AC_SUBST(all_lang_makefiles)
2926 AC_SUBST(all_languages)
2927 AC_SUBST(all_stagestuff)
2928 AC_SUBST(build_exeext)
2929 AC_SUBST(build_install_headers_dir)
2930 AC_SUBST(build_xm_file_list)
2931 AC_SUBST(build_xm_include_list)
2932 AC_SUBST(build_xm_defines)
2933 AC_SUBST(check_languages)
2934 AC_SUBST(cc_set_by_configure)
2935 AC_SUBST(quoted_cc_set_by_configure)
2936 AC_SUBST(cpp_install_dir)
2937 AC_SUBST(xmake_file)
2938 AC_SUBST(tmake_file)
2939 AC_SUBST(extra_headers_list)
2940 AC_SUBST(extra_objs)
2941 AC_SUBST(extra_parts)
2942 AC_SUBST(extra_passes)
2943 AC_SUBST(extra_programs)
2944 AC_SUBST(float_h_file)
2945 AC_SUBST(gcc_config_arguments)
2946 AC_SUBST(gcc_gxx_include_dir)
2947 AC_SUBST(libstdcxx_incdir)
2948 AC_SUBST(gcc_version)
2949 AC_SUBST(gcc_version_full)
2950 AC_SUBST(gcc_version_trigger)
2951 AC_SUBST(host_exeext)
2952 AC_SUBST(host_extra_gcc_objs)
2953 AC_SUBST(host_xm_file_list)
2954 AC_SUBST(host_xm_include_list)
2955 AC_SUBST(host_xm_defines)
2956 AC_SUBST(out_host_hook_obj)
2958 AC_SUBST(lang_opt_files)
2959 AC_SUBST(lang_specs_files)
2960 AC_SUBST(lang_tree_files)
2961 AC_SUBST(local_prefix)
2963 AC_SUBST(objc_boehm_gc)
2965 AC_SUBST(out_object_file)
2966 AC_SUBST(stage_prefix_set_by_configure)
2967 AC_SUBST(quoted_stage_prefix_set_by_configure)
2968 AC_SUBST(symbolic_link)
2969 AC_SUBST(thread_file)
2970 AC_SUBST(tm_file_list)
2971 AC_SUBST(tm_include_list)
2972 AC_SUBST(tm_defines)
2973 AC_SUBST(tm_p_file_list)
2974 AC_SUBST(tm_p_include_list)
2975 AC_SUBST(xm_file_list)
2976 AC_SUBST(xm_include_list)
2977 AC_SUBST(xm_defines)
2978 AC_SUBST(target_alias)
2979 AC_SUBST(c_target_objs)
2980 AC_SUBST(cxx_target_objs)
2981 AC_SUBST(target_cpu_default)
2983 AC_SUBST_FILE(language_hooks)
2985 # Echo that links are built
2986 if test x$host = x$target
2994 if test x$host != x$build
2996 str3=" on a $build system"
2999 if test "x$str2" != x || test "x$str3" != x
3004 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3006 if test "x$str2" != x || test "x$str3" != x
3008 echo " ${str2}${str3}." 1>&2
3011 # Configure the subdirectories
3012 # AC_CONFIG_SUBDIRS($subdirs)
3014 # Create the Makefile
3015 # and configure language subdirectories
3016 AC_OUTPUT($all_outputs,
3018 case x$CONFIG_HEADERS in
3019 xauto-host.h:config.in)
3022 # Make sure all the subdirs exist.
3025 test -d $d || mkdir $d
3027 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3028 # bootstrapping and the installation procedure can still use
3029 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3030 # FLAGS_TO_PASS has been modified to solve the problem there.
3031 # This is virtually a duplicate of what happens in configure.lang; we do
3032 # an extra check to make sure this only happens if ln -s can be used.
3033 if test "$symbolic_link" = "ln -s"; then
3034 for d in ${subdirs} fixinc ; do
3035 STARTDIR=`${PWDCMD-pwd}`
3037 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3040 $symbolic_link ../$t $t 2>/dev/null
3047 symbolic_link='$symbolic_link'