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
974 # Decode the host machine, then the target machine.
975 # For the host machine, we save the xm_file variable as host_xm_file;
976 # then we decode the target machine and forget everything else
977 # that came from the host machine.
978 for machine in $host $target; do
979 . ${srcdir}/config.gcc
982 extra_objs="${host_extra_objs} ${extra_objs}"
984 # Default the target-machine variables that were not explicitly set.
985 if test x"$tm_file" = x
986 then tm_file=$cpu_type/$cpu_type.h; fi
988 if test x"$extra_headers" = x
989 then extra_headers=; fi
991 if test x$md_file = x
992 then md_file=$cpu_type/$cpu_type.md; fi
994 if test x$out_file = x
995 then out_file=$cpu_type/$cpu_type.c; fi
997 if test x"$tmake_file" = x
998 then tmake_file=$cpu_type/t-$cpu_type
1001 if test x"$dwarf2" = xyes
1002 then tm_file="$tm_file tm-dwarf2.h"
1005 # Say what files are being used for the output code and MD file.
1006 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1007 echo "Using \`$srcdir/config/$md_file' as machine description file."
1009 # If any of the xm_file variables contain nonexistent files, warn
1010 # about them and drop them.
1013 for x in $build_xm_file; do
1014 if test -f $srcdir/config/$x
1016 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1022 for x in $host_xm_file; do
1023 if test -f $srcdir/config/$x
1025 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1031 for x in $xm_file; do
1032 if test -f $srcdir/config/$x
1034 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1040 for f in $tm_file; do
1043 if test $count = ax; then
1044 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1046 echo "Using the following target machine macro files:"
1047 for f in $tm_file; do
1048 echo " $srcdir/config/$f"
1052 if test x$need_64bit_hwint = xyes; then
1053 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1054 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1058 for f in $host_xm_file; do
1061 if test $count = a; then
1063 elif test $count = ax; then
1064 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1066 echo "Using the following host machine macro files:"
1067 for f in $host_xm_file; do
1068 echo " $srcdir/config/$f"
1071 echo "Using ${out_host_hook_obj} for host machine hooks."
1073 if test "$host_xm_file" != "$build_xm_file"; then
1075 for f in $build_xm_file; do
1078 if test $count = a; then
1080 elif test $count = ax; then
1081 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1083 echo "Using the following build machine macro files:"
1084 for f in $build_xm_file; do
1085 echo " $srcdir/config/$f"
1090 if test x$thread_file = x; then
1091 if test x$target_thread_file != x; then
1092 thread_file=$target_thread_file
1094 thread_file='single'
1098 if test x$enable___cxa_atexit = xyes || \
1099 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1100 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1101 [Define if you want to use __cxa_atexit, rather than atexit, to
1102 register C++ destructors for local statics and global objects.
1103 This is essential for fully standards-compliant handling of
1104 destructors, but requires __cxa_atexit in libc.])
1107 # Look for a file containing extra machine modes.
1108 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1109 extra_modes_file='$(srcdir)'/config/${extra_modes}
1110 AC_SUBST(extra_modes_file)
1111 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1112 [Define to the name of a file containing a list of extra machine modes
1113 for this architecture.])
1114 AC_DEFINE(EXTRA_CC_MODES, 1,
1115 [Define if the target architecture needs extra machine modes to represent
1116 the results of comparisons.])
1119 # auto-host.h is the file containing items generated by autoconf and is
1120 # the first file included by config.h.
1121 # If host=build, it is correct to have bconfig include auto-host.h
1122 # as well. If host!=build, we are in error and need to do more
1123 # work to find out the build config parameters.
1124 if test x$host = x$build
1126 build_auto=auto-host.h
1129 # We create a subdir, then run autoconf in the subdir.
1130 # To prevent recursion we set host and build for the new
1131 # invocation of configure to the build for this invocation
1138 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1139 *) realsrcdir=../${srcdir};;
1141 saved_CFLAGS="${CFLAGS}"
1142 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1143 ${realsrcdir}/configure \
1144 --target=$target_alias --host=$build_alias --build=$build_alias
1145 CFLAGS="${saved_CFLAGS}"
1147 # We just finished tests for the build machine, so rename
1148 # the file auto-build.h in the gcc directory.
1149 mv auto-host.h ../auto-build.h
1152 build_auto=auto-build.h
1153 FORBUILD=../${build_subdir}
1157 tm_file="${tm_file} defaults.h"
1158 tm_p_file="${tm_p_file} tm-preds.h"
1159 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1160 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1161 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1162 # put this back in temporarily.
1163 xm_file="ansidecl.h ${xm_file}"
1169 # Get the version trigger filename from the toplevel
1170 if test "${with_gcc_version_trigger+set}" = set; then
1171 gcc_version_trigger=$with_gcc_version_trigger
1173 gcc_version_trigger=${srcdir}/version.c
1176 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1177 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1179 # Compile in configure arguments.
1180 if test -f configargs.h ; then
1181 # Being re-configured.
1182 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1183 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1185 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1187 cat > configargs.h <<EOF
1188 /* Generated automatically. */
1189 static const char configuration_arguments[] = "$gcc_config_arguments";
1190 static const char thread_model[] = "$thread_file";
1192 static const struct {
1193 const char *name, *value;
1194 } configure_default_options[] = $configure_default_options;
1198 # Internationalization
1200 VERSION="$gcc_version"
1204 ZW_GNU_GETTEXT_SISTER_DIR
1206 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1207 # -liconv on the link line twice.
1208 case "$LIBINTL" in *$LIBICONV*)
1212 # Windows32 Registry support for specifying GCC installation paths.
1213 AC_ARG_ENABLE(win32-registry,
1214 [ --disable-win32-registry
1215 disable lookup of installation paths in the
1216 Registry on Windows hosts
1217 --enable-win32-registry enable registry lookup (default)
1218 --enable-win32-registry=KEY
1219 use KEY instead of GCC version as the last portion
1220 of the registry key],,)
1222 win32 | pe | cygwin* | mingw32* | uwin*)
1223 AC_MSG_CHECKING(whether windows registry support is requested)
1224 if test "x$enable_win32_registry" != xno; then
1225 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1226 [Define to 1 if installation paths should be looked up in Windows32
1227 Registry. Ignored on non windows32 hosts.])
1229 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1234 # Check if user specified a different registry key.
1235 case "x${enable_win32_registry}" in
1238 gcc_cv_win32_registry_key="$VERSION"
1241 # no registry lookup.
1242 gcc_cv_win32_registry_key=''
1245 # user-specified key.
1246 gcc_cv_win32_registry_key="$enable_win32_registry"
1250 if test "x$enable_win32_registry" != xno; then
1251 AC_MSG_CHECKING(registry key on windows hosts)
1252 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1253 [Define to be the last portion of registry key on windows hosts.])
1254 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1259 # Get an absolute path to the GCC top-level source directory
1260 holddir=`${PWDCMD-pwd}`
1262 topdir=`${PWDCMD-pwd}`
1265 # Conditionalize the makefile for this host machine.
1267 for f in .. ${host_xmake_file}
1269 if test -f ${srcdir}/config/$f
1271 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1275 # Conditionalize the makefile for this target machine.
1277 for f in .. ${tmake_file}
1279 if test -f ${srcdir}/config/$f
1281 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1284 tmake_file="${tmake_file_}"
1286 symbolic_link='ln -s'
1288 # If the host doesn't support symlinks, modify CC in
1289 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1290 # Otherwise, we can use "CC=$(CC)".
1292 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1294 cc_set_by_configure="\$(CC)"
1295 quoted_cc_set_by_configure="\$(CC)"
1296 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1297 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1300 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1302 symbolic_link="cp -p"
1306 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1307 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1308 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1309 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1313 out_object_file=`basename $out_file .c`.o
1317 for f in $tm_file; do
1320 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1321 tm_include_list="${tm_include_list} $f"
1324 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1325 tm_include_list="${tm_include_list} config/$f"
1332 for f in $tm_p_file; do
1335 tm_p_file_list="${tm_p_file_list} $f"
1336 tm_p_include_list="${tm_p_include_list} $f"
1339 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1340 tm_p_include_list="${tm_p_include_list} config/$f"
1346 for f in $xm_file; do
1349 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1350 xm_include_list="${xm_include_list} $f"
1353 xm_file_list="${xm_file_list} $f"
1354 xm_include_list="${xm_include_list} $f"
1357 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1358 xm_include_list="${xm_include_list} config/$f"
1364 host_xm_include_list=
1365 for f in $host_xm_file; do
1368 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1369 host_xm_include_list="${host_xm_include_list} $f"
1372 host_xm_file_list="${host_xm_file_list} $f"
1373 host_xm_include_list="${host_xm_include_list} $f"
1376 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1377 host_xm_include_list="${host_xm_include_list} config/$f"
1383 for f in $build_xm_file; do
1386 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1387 build_xm_include_list="${build_xm_include_list} $f"
1389 auto-build.h | auto-host.h )
1390 build_xm_file_list="${build_xm_file_list} $f"
1391 build_xm_include_list="${build_xm_include_list} $f"
1394 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1395 build_xm_include_list="${build_xm_include_list} config/$f"
1400 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1401 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1402 CROSS= AC_SUBST(CROSS)
1403 ALL=all.internal AC_SUBST(ALL)
1404 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1405 if test x$host != x$target
1407 CROSS="-DCROSS_COMPILE"
1409 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1410 case "$host","$target" in
1411 # Darwin crosses can use the host system's libraries and headers,
1412 # because of the fat library support. Of course, it must be the
1413 # same version of Darwin on both sides. Allow the user to
1414 # just say --target=foo-darwin without a version number to mean
1415 # "the version on this system".
1416 *-*-darwin*,*-*-darwin*)
1417 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1418 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1419 if test $hostos = $targetos -o $targetos = darwin ; then
1421 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1426 i?86-*-*,x86_64-*-* \
1427 | powerpc*-*-*,powerpc64*-*-*)
1428 CROSS="$CROSS -DNATIVE_CROSS" ;;
1430 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1431 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1432 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1435 # If this is a cross-compiler that does not
1436 # have its own set of headers then define
1439 # If this is using newlib, without having the headers available now,
1440 # then define inhibit_libc in LIBGCC2_CFLAGS.
1441 # This prevents libgcc2 from containing any code which requires libc
1444 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1445 test x$with_newlib = xyes ; } &&
1446 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1447 inhibit_libc=-Dinhibit_libc
1449 AC_SUBST(inhibit_libc)
1451 # When building gcc with a cross-compiler, we need to adjust things so
1452 # that the generator programs are still built with the native compiler.
1453 # Also, we cannot run fixincludes or fix-header.
1455 # These are the normal (build=host) settings:
1456 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1457 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1458 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1459 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1461 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1462 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1464 # And these apply if build != host, or we are generating coverage data
1465 if test x$build != x$host || test "x$coverage_flags" != x
1468 BUILD_PREFIX_1=build-
1469 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1471 if test "x$TARGET_SYSTEM_ROOT" = x; then
1477 # Expand extra_headers to include complete path.
1478 # This substitutes for lots of t-* files.
1480 if test "x$extra_headers" = x
1483 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1484 for file in $extra_headers;
1486 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1490 # Add a definition of USE_COLLECT2 if system wants one.
1491 case $use_collect2 in
1492 no) use_collect2= ;;
1495 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1496 xm_defines="${xm_defines} USE_COLLECT2"
1500 # Identify the assembler which will work hand-in-glove with the newly
1501 # built GCC, so that we can examine its features. This is the assembler
1502 # which will be driven by the driver program.
1504 # If build != host, and we aren't building gas in-tree, we identify a
1505 # build->target assembler and hope that it will have the same features
1506 # as the host->target assembler we'll be using.
1507 AC_MSG_CHECKING(what assembler to use)
1510 gcc_cv_gas_major_version=
1511 gcc_cv_gas_minor_version=
1512 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1513 if test -x "$DEFAULT_ASSEMBLER"; then
1514 gcc_cv_as="$DEFAULT_ASSEMBLER"
1515 elif test -x "$AS"; then
1517 elif test -x as$host_exeext; then
1518 # Build using assembler in the current directory.
1519 gcc_cv_as=./as$host_exeext
1520 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1521 && test -f ../gas/Makefile; then
1522 # Single tree build which includes gas.
1524 _gcc_COMPUTE_GAS_VERSION
1525 rm -f as$host_exeext
1526 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1527 in_tree_gas_is_elf=no
1528 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1529 || (grep 'obj_format = multi' ../gas/Makefile \
1530 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1532 in_tree_gas_is_elf=yes
1536 if test "x$gcc_cv_as" = x; then
1537 # Search the same directories that the installed compiler will
1538 # search. Else we may find the wrong assembler and lose. If we
1539 # do not find a suitable assembler binary, then try the user's
1542 # Also note we have to check MD_EXEC_PREFIX before checking the
1543 # user's path. Unfortunately, there is no good way to get at the
1544 # value of MD_EXEC_PREFIX here. So we do a brute force search
1545 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1546 # to be fixed as part of the make/configure rewrite too.
1548 if test "x$exec_prefix" = xNONE; then
1549 if test "x$prefix" = xNONE; then
1550 test_prefix=/usr/local
1555 test_prefix=$exec_prefix
1558 # If the loop below does not find an assembler, then use whatever
1559 # one we can find in the users's path.
1561 if test "x$program_prefix" != xNONE; then
1562 gcc_cv_as=${program_prefix}as$host_exeext
1564 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1567 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1568 $test_prefix/lib/gcc-lib/$target_alias \
1569 /usr/lib/gcc/$target_alias/$gcc_version \
1570 /usr/lib/gcc/$target_alias \
1571 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1572 $test_prefix/$target_alias/bin"
1574 if test x$host = x$target; then
1575 test_dirs="$test_dirs \
1580 /bsd43/usr/lib/cmplrs/cc \
1581 /usr/cross64/usr/bin \
1582 /usr/lib/cmplrs/cc \
1583 /sysv/usr/lib/cmplrs/cc \
1584 /svr4/usr/lib/cmplrs/cc \
1588 for dir in $test_dirs; do
1589 if test -x $dir/as$host_exeext; then
1590 gcc_cv_as=$dir/as$host_exeext
1595 case $in_tree_gas in
1597 AC_MSG_RESULT("newly built gas")
1600 AC_MSG_RESULT($gcc_cv_as)
1604 # Identify the linker which will work hand-in-glove with the newly
1605 # built GCC, so that we can examine its features. This is the linker
1606 # which will be driven by the driver program.
1608 # If build != host, and we aren't building gas in-tree, we identify a
1609 # build->target linker and hope that it will have the same features
1610 # as the host->target linker we'll be using.
1611 AC_MSG_CHECKING(what linker to use)
1614 gcc_cv_gld_major_version=
1615 gcc_cv_gld_minor_version=
1616 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1617 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1618 if test -x "$DEFAULT_LINKER"; then
1619 gcc_cv_ld="$DEFAULT_LINKER"
1620 elif test -x "$LD"; then
1622 elif test -x collect-ld$host_exeext; then
1623 # Build using linker in the current directory.
1624 gcc_cv_ld=./collect-ld$host_exeext
1625 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1626 && test -f ../ld/Makefile; then
1627 # Single tree build which includes ld.
1629 in_tree_ld_is_elf=no
1630 if (grep 'EMUL = .*elf' ../ld/Makefile \
1631 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1632 in_tree_ld_is_elf=yes
1634 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
1637 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1639 if test x$gcc_cv_gld_version != x; then
1644 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1645 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1647 rm -f collect-ld$host_exeext
1648 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1652 if test "x$gcc_cv_ld" = x; then
1653 # Search the same directories that the installed compiler will
1654 # search. Else we may find the wrong linker and lose. If we
1655 # do not find a suitable linker binary, then try the user's
1658 # Also note we have to check MD_EXEC_PREFIX before checking the
1659 # user's path. Unfortunately, there is no good way to get at the
1660 # value of MD_EXEC_PREFIX here. So we do a brute force search
1661 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1662 # to be fixed as part of the make/configure rewrite too.
1664 if test "x$exec_prefix" = xNONE; then
1665 if test "x$prefix" = xNONE; then
1666 test_prefix=/usr/local
1671 test_prefix=$exec_prefix
1674 # If the loop below does not find an linker, then use whatever
1675 # one we can find in the users's path.
1677 if test "x$program_prefix" != xNONE; then
1678 gcc_cv_ld=${program_prefix}ld$host_exeext
1680 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1683 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1684 $test_prefix/lib/gcc-lib/$target_alias \
1685 /usr/lib/gcc/$target_alias/$gcc_version \
1686 /usr/lib/gcc/$target_alias \
1687 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1688 $test_prefix/$target_alias/bin"
1690 if test x$host = x$target; then
1691 test_dirs="$test_dirs \
1696 /bsd43/usr/lib/cmplrs/cc \
1697 /usr/cross64/usr/bin \
1698 /usr/lib/cmplrs/cc \
1699 /sysv/usr/lib/cmplrs/cc \
1700 /svr4/usr/lib/cmplrs/cc \
1704 for dir in $test_dirs; do
1705 if test -x $dir/ld$host_exeext; then
1706 gcc_cv_ld=$dir/ld$host_exeext
1713 AC_MSG_RESULT("newly built ld")
1716 AC_MSG_RESULT($gcc_cv_ld)
1720 # Figure out what nm we will be using.
1721 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1722 AC_MSG_CHECKING(what nm to use)
1724 if test -x nm$host_exeext; then
1725 gcc_cv_nm=./nm$host_exeext
1726 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1727 && test -f ../binutils/Makefile; then
1728 # Single tree build which includes binutils.
1730 gcc_cv_nm=./nm$host_exeext
1731 rm -f nm$host_exeext
1732 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1733 elif test "x$program_prefix" != xNONE; then
1734 gcc_cv_nm=${program_prefix}nm$host_exeext
1736 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1739 yes) AC_MSG_RESULT("newly built nm") ;;
1740 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1743 # Figure out what objdump we will be using.
1744 AC_MSG_CHECKING(what objdump to use)
1746 if test -x objdump$host_exeext; then
1747 gcc_cv_objdump=./objdump$host_exeext
1748 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1749 && test -f ../binutils/Makefile; then
1750 # Single tree build which includes binutils.
1752 gcc_cv_objdump=./objdump$host_exeext
1753 rm -f objdump$host_exeext
1754 $symbolic_link ../binutils/objdump$host_exeext \
1755 objdump$host_exeext 2>/dev/null
1756 elif test "x$program_prefix" != xNONE; then
1757 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1759 gcc_cv_objdump=`echo objdump | \
1760 sed ${program_transform_name}`$host_exeext
1762 case $in_tree_objdump in
1763 yes) AC_MSG_RESULT("newly built objdump") ;;
1764 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1767 # Figure out what assembler alignment features are present.
1768 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1772 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1773 [Define if your assembler supports .balign and .p2align.])])
1775 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1778 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1779 [Define if your assembler supports specifying the maximum number
1780 of bytes to skip when using the GAS .p2align command.])])
1782 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1784 [conftest_label1: .word 0
1786 conftest_label2: .word 0
1788 [if test x$gcc_cv_nm != x; then
1789 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1790 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1791 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1793 else gcc_cv_as_subsection_m1=yes
1795 rm -f conftest.nm1 conftest.nm2
1797 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1798 [Define if your assembler supports .subsection and .subsection -1 starts
1799 emitting at the beginning of your section.])])
1801 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1804 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1806 # .hidden needs to be supported in both the assembler and the linker,
1807 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1808 # This is irritatingly difficult to feature test for; we have to check the
1809 # date string after the version number. If we've got an in-tree
1810 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1812 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1813 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1818 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1819 [if test $in_tree_ld = yes ; then
1821 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1822 && test $in_tree_ld_is_elf = yes; then
1823 gcc_cv_ld_hidden=yes
1826 gcc_cv_ld_hidden=yes
1827 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1828 if echo "$ld_ver" | grep GNU > /dev/null; then
1830 ld_vers=`echo $ld_ver | sed -n \
1831 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1832 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1833 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
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 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1838 if test 0"$ld_date" -lt 20020404; then
1839 if test -n "$ld_date"; then
1840 # If there was date string, but was earlier than 2002-04-04, fail
1842 elif test -z "$ld_vers"; then
1843 # If there was no date string nor ld version number, something is wrong
1846 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1847 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1848 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1849 test -z "$ld_vers_patch" && ld_vers_patch=0
1850 if test "$ld_vers_major" -lt 2; then
1852 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1853 gcc_cv_ld_hidden="no"
1854 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1862 mips-sgi-irix[[56]]*)
1863 if test x"$gnu_ld_flag" = x"no"; then
1864 # Even if using gas with .hidden support, the resulting object files
1865 # cannot be linked with the IRIX 5 and IRIX 6 O32 linkers. With
1866 # the IRIX 6 N32 and N64 linkers, the problem is that the linker
1867 # refuses to accept -call_shared (passed by default to the
1868 # linker) and -r (used to link the object file generated without
1869 # .hidden directives with one that hides symbols), so we also lose.
1876 libgcc_visibility=no
1877 AC_SUBST(libgcc_visibility)
1878 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1879 libgcc_visibility=yes
1880 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1881 [Define if your assembler and linker support .hidden.])
1884 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1885 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1893 [# GAS versions before 2.11 do not support uleb128,
1894 # despite appearing to.
1895 # ??? There exists an elf-specific test that will crash
1896 # the assembler. Perhaps it's better to figure out whether
1897 # arbitrary sections are supported and try the test.
1898 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1899 if echo "$as_ver" | grep GNU > /dev/null; then
1901 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1902 as_major=`echo $as_ver | sed 's/\..*//'`
1903 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1905 if test $as_major -eq 2 && test $as_minor -lt 11
1907 else gcc_cv_as_leb128=yes
1910 [AC_DEFINE(HAVE_AS_LEB128, 1,
1911 [Define if your assembler supports .sleb128 and .uleb128.])])
1913 # GAS versions up to and including 2.11.0 may mis-optimize
1915 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1923 .section .eh_frame,"aw",@progbits
1925 .4byte .LECIE1-.LSCIE1
1939 .4byte .LEFDE1-.LASFDE1
1941 .4byte .LASFDE1-__FRAME_BEGIN__
1949 [ cat > conftest.lit <<EOF
1950 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1951 0010 01000000 12000000 18000000 00000000 ................
1952 0020 08000000 04080000 0044 .........D
1954 cat > conftest.big <<EOF
1955 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1956 0010 00000001 00000012 00000018 00000000 ................
1957 0020 00000008 04000000 0844 .........D
1959 # If the assembler didn't choke, and we can objdump,
1960 # and we got the correct data, then succeed.
1961 if test x$gcc_cv_objdump != x \
1962 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1963 | tail -3 > conftest.got \
1964 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1965 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1967 gcc_cv_as_eh_frame=yes
1968 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
1969 gcc_cv_as_eh_frame=buggy
1971 # Uh oh, what do we do now?
1972 gcc_cv_as_eh_frame=no
1975 if test $gcc_cv_as_eh_frame = buggy; then
1976 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1977 [Define if your assembler mis-optimizes .eh_frame data.])
1980 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
1981 [elf,2,12,0], [--fatal-warnings],
1982 [.section .rodata.str, "aMS", @progbits, 1],,
1983 [AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1984 [Define if your assembler supports marking sections with SHF_MERGE flag.])])
1986 # Thread-local storage - the check is heavily parametrized.
1995 .section ".tdata","awT",@progbits
1998 ldq $27,__tls_get_addr($29) !literal!1
1999 lda $16,foo($29) !tlsgd!1
2000 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2001 ldq $27,__tls_get_addr($29) !literal!2
2002 lda $16,foo($29) !tlsldm!2
2003 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2004 ldq $1,foo($29) !gotdtprel
2005 ldah $2,foo($29) !dtprelhi
2006 lda $3,foo($2) !dtprello
2007 lda $4,foo($29) !dtprel
2008 ldq $1,foo($29) !gottprel
2009 ldah $2,foo($29) !tprelhi
2010 lda $3,foo($2) !tprello
2011 lda $4,foo($29) !tprel'
2018 .section ".tdata","awT",@progbits
2022 leal foo@TLSGD(,%ebx,1), %eax
2023 leal foo@TLSLDM(%ebx), %eax
2024 leal foo@DTPOFF(%eax), %edx
2025 movl foo@GOTTPOFF(%ebx), %eax
2026 subl foo@GOTTPOFF(%ebx), %eax
2027 addl foo@GOTNTPOFF(%ebx), %eax
2028 movl foo@INDNTPOFF, %eax
2029 movl $foo@TPOFF, %eax
2030 subl $foo@TPOFF, %eax
2031 leal foo@NTPOFF(%ecx), %eax'
2037 .section ".tdata","awT",@progbits
2041 leaq foo@TLSGD(%rip), %rdi
2042 leaq foo@TLSLD(%rip), %rdi
2043 leaq foo@DTPOFF(%rax), %rdx
2044 movq foo@GOTTPOFF(%rip), %rax
2045 movq $foo@TPOFF, %rax'
2051 .section ".tdata","awT",@progbits
2054 addl r16 = @ltoff(@dtpmod(foo#)), gp
2055 addl r17 = @ltoff(@dtprel(foo#)), gp
2056 addl r18 = @ltoff(@tprel(foo#)), gp
2057 addl r19 = @dtprel(foo#), gp
2058 adds r21 = @dtprel(foo#), r13
2059 movl r23 = @dtprel(foo#)
2060 addl r20 = @tprel(foo#), gp
2061 adds r22 = @tprel(foo#), r13
2062 movl r24 = @tprel(foo#)'
2068 .section ".tdata","awT",@progbits
2076 addi 3,31,ld0@got@tlsgd
2078 addi 3,31,x1@got@tlsld
2081 addis 9,3,x2@dtprel@ha
2082 addi 9,9,x2@dtprel@l
2083 lwz 9,x3@got@tprel(31)
2086 addis 9,2,x2@tprel@ha
2087 addi 9,9,x2@tprel@l'
2094 .section ".tdata","awT",@progbits
2102 addi 3,2,ld0@got@tlsgd
2108 addi 3,2,x1@got@tlsld
2114 addis 9,3,x2@dtprel@ha
2115 addi 9,9,x2@dtprel@l
2118 ld 9,x3@got@dtprel(2)
2128 .section ".tdata","awT",@progbits
2137 l %r1,foo@GOTNTPOFF(%r12)
2138 l %r1,0(%r1):tls_load:foo
2139 bas %r14,0(%r1,%r13):tls_gdcall:foo
2140 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2147 .section ".tdata","awT",@progbits
2155 lg %r1,foo@GOTNTPOFF(%r12)
2156 larl %r1,foo@INDNTPOFF
2157 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2158 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2161 tls_as_opt="-m64 -Aesame"
2164 if test -z "$tls_first_major"; then
2165 : # If we don't have a check, assume no support.
2167 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2168 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt --fatal-warnings],
2170 [AC_DEFINE(HAVE_AS_TLS, 1,
2171 [Define if your assembler supports thread-local storage.])])
2174 # Target-specific assembler checks.
2177 # All TARGET_ABI_OSF targets.
2178 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2179 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2180 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2183 extbl $3, $2, $3 !lituse_bytoff!1
2184 ldq $2, a($29) !literal!1
2185 ldq $4, b($29) !literal!2
2186 ldq_u $3, 0($2) !lituse_base!1
2187 ldq $27, f($29) !literal!5
2188 jsr $26, ($27), f !lituse_jsr!5
2189 ldah $29, 0($26) !gpdisp!3
2190 lda $0, c($29) !gprel
2191 ldah $1, d($29) !gprelhigh
2192 lda $1, d($1) !gprellow
2193 lda $29, 0($29) !gpdisp!3],,
2194 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2195 [Define if your assembler supports explicit relocations.])])
2199 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2200 [.register %g2, #scratch],,
2201 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2202 [Define if your assembler supports .register.])])
2204 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2206 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2207 [Define if your assembler supports -relax option.])])
2209 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2210 gcc_cv_as_sparc_ua_pcrel,,
2218 .uaword %r_disp32(foo)],
2219 [if test x$gcc_cv_ld != x \
2220 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2221 gcc_cv_as_sparc_ua_pcrel=yes
2224 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2225 [Define if your assembler and linker support unaligned PC relative relocs.])
2227 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2228 gcc_cv_as_sparc_ua_pcrel_hidden,,
2233 .uaword %r_disp32(foo)
2234 .byte 0x32, 0x33, 0x34
2239 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2240 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2241 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2242 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2243 if $gcc_cv_objdump -R conftest 2> /dev/null \
2244 | grep 'DISP32' > /dev/null 2>&1; then
2247 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2251 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2252 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2253 ]) # unaligned pcrel relocs
2255 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2256 gcc_cv_as_sparc_offsetable_lo10,,
2259 or %g1, %lo(ab) + 12, %g1
2260 or %g1, %lo(ab + 12), %g1],
2261 [if test x$gcc_cv_objdump != x \
2262 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2263 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2264 gcc_cv_as_offsetable_lo10=yes
2266 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2267 [Define if your assembler supports offsetable %lo().])])
2271 i[34567]86-*-* | x86_64-*-*)
2273 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2274 gcc_cv_as_ix86_filds_fists,
2275 [2,9,0],, [filds mem; fists mem],,
2276 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2277 [Define if your assembler uses the new HImode fild and fist notation.])])
2279 # This one is used unconditionally by i386.[ch]; it is to be defined
2280 # to 1 if the feature is present, 0 otherwise.
2281 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2282 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2288 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2289 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2290 [Define true if the assembler supports '.long foo@GOTOFF'.])
2294 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2295 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2297 addl r15 = @ltoffx(x#), gp
2299 ld8.mov r16 = [[r15]], x#],,
2300 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2301 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2307 *-*-aix) conftest_s=' .csect .text[PR]';;
2308 *) conftest_s=' .text';;
2310 conftest_s="$conftest_s
2313 gcc_GAS_CHECK_FEATURE([mfcr field support],
2314 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2316 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2317 [Define if your assembler supports mfcr field.])])
2321 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2322 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2323 [ lw $4,%gp_rel(foo)($4)],,
2324 [if test x$target_cpu_default = x
2325 then target_cpu_default=MASK_EXPLICIT_RELOCS
2326 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2331 # ??? Not all targets support dwarf2 debug_line, even within a version
2332 # of gas. Moreover, we need to emit a valid instruction to trigger any
2333 # info to the output file. So, as supported targets are added to gas 2.11,
2334 # add some instruction here to (also) show we expect this might work.
2335 # ??? Once 2.11 is released, probably need to add first known working
2336 # version to the per-target configury.
2338 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2339 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2340 | xstormy16*-*-* | cris-*-*)
2350 if test x"$insn" != x; then
2352 .file 1 \"conftest.s\"
2355 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2356 gcc_cv_as_dwarf2_debug_line,
2357 [elf,2,11,0],, [$conftest_s],
2358 [# ??? This fails with non-gnu grep. Maybe use objdump?
2359 if grep debug_line conftest.o > /dev/null 2>&1; then
2360 gcc_cv_as_dwarf2_debug_line=yes
2363 # The .debug_line file table must be in the exact order that
2364 # we specified the files, since these indices are also used
2365 # by DW_AT_decl_file. Approximate this test by testing if
2366 # the assembler bitches if the same index is assigned twice.
2367 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2368 gcc_cv_as_dwarf2_file_buggy,,,
2372 if test $gcc_cv_as_dwarf2_debug_line = yes \
2373 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2374 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2375 [Define if your assembler supports dwarf2 .file/.loc directives,
2376 and preserves file table indices exactly as given.])
2379 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2380 gcc_cv_as_gdwarf2_flag,
2381 [elf,2,11,0], [--gdwarf2], [$insn],,
2382 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2383 [Define if your assembler supports the --gdwarf2 option.])])
2385 gcc_GAS_CHECK_FEATURE([--gstabs option],
2386 gcc_cv_as_gstabs_flag,
2387 [elf,2,11,0], [--gstabs], [$insn],
2388 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2389 # and warns about it, but still exits successfully. So check for
2391 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2393 else gcc_cv_as_gstabs_flag=yes
2395 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2396 [Define if your assembler supports the --gstabs option.])])
2399 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2400 gcc_cv_ld_ro_rw_mix=unknown
2401 if test $in_tree_ld = yes ; then
2402 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2403 && test $in_tree_ld_is_elf = yes; then
2404 gcc_cv_ld_ro_rw_mix=read-write
2406 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2407 echo '.section myfoosect, "a"' > conftest1.s
2408 echo '.section myfoosect, "aw"' > conftest2.s
2409 echo '.byte 1' >> conftest2.s
2410 echo '.section myfoosect, "a"' > conftest3.s
2411 echo '.byte 0' >> conftest3.s
2412 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2413 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2414 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2415 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2416 conftest2.o conftest3.o > /dev/null 2>&1; then
2417 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2418 | sed -e '/myfoosect/!d' -e N`
2419 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2420 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2421 gcc_cv_ld_ro_rw_mix=read-only
2423 gcc_cv_ld_ro_rw_mix=read-write
2428 rm -f conftest.* conftest[123].*
2431 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2432 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2433 [Define if your linker links a mix of read-only
2434 and read-write sections into a read-write section.])
2436 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2438 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2439 gcc_cv_ld_eh_frame_hdr=no
2440 if test $in_tree_ld = yes ; then
2441 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2442 && test $in_tree_ld_is_elf = yes; then
2443 gcc_cv_ld_eh_frame_hdr=yes
2445 elif test x$gcc_cv_ld != x; then
2446 # Check if linker supports --eh-frame-hdr option
2447 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2448 gcc_cv_ld_eh_frame_hdr=yes
2451 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2452 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2453 [Define if your linker supports --eh-frame-hdr option.])
2455 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2457 AC_MSG_CHECKING(linker position independent executable support)
2459 if test $in_tree_ld = yes ; then
2460 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2461 && test $in_tree_ld_is_elf = yes; then
2464 elif test x$gcc_cv_ld != x; then
2465 # Check if linker supports -pie option
2466 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2470 if test x"$gcc_cv_ld_pie" = xyes; then
2471 AC_DEFINE(HAVE_LD_PIE, 1,
2472 [Define if your linker supports -pie option.])
2474 AC_MSG_RESULT($gcc_cv_ld_pie)
2476 # Miscellaneous target-specific checks.
2479 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2480 gcc_cv_mips_libgloss_startup=no
2481 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2482 if test "x$exec_prefix" = xNONE; then
2483 if test "x$prefix" = xNONE; then
2484 test_prefix=/usr/local
2489 test_prefix=$exec_prefix
2491 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2493 if grep '^STARTUP' $f > /dev/null 2>&1; then
2494 gcc_cv_mips_libgloss_startup=yes
2498 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2499 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2500 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2502 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2506 if test x$with_sysroot = x && test x$host = x$target \
2507 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2508 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2509 [Define to PREFIX/include if cpp should also search that directory.])
2512 # Figure out what language subdirectories are present.
2513 # Look if the user specified --enable-languages="..."; if not, use
2514 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2516 # NB: embedded tabs in this IF block -- do not untabify
2517 if test x"${enable_languages+set}" != xset; then
2518 if test x"${LANGUAGES+set}" = xset; then
2519 enable_languages="${LANGUAGES}"
2520 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2523 enable_languages=all
2526 if test x"${enable_languages}" = x \
2527 || test x"${enable_languages}" = xyes;
2529 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2532 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2534 # First scan to see if an enabled language requires some other language.
2535 # We assume that a given config-lang.in will list all the language
2536 # front ends it requires, even if some are required indirectly.
2537 for lang in ${srcdir}/*/config-lang.in ..
2542 # The odd quoting in the next line works around
2543 # an apparent bug in bash 1.12 on linux.
2545 ${srcdir}/[*]/config-lang.in)
2548 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2549 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2550 for other in $this_lang_requires
2552 case ,${enable_languages}, in
2558 enable_languages="$enable_languages,$other"
2567 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2570 for lang in ${srcdir}/*/config-lang.in ..
2574 # The odd quoting in the next line works around
2575 # an apparent bug in bash 1.12 on linux.
2577 ${srcdir}/[*]/config-lang.in) ;;
2579 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2580 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2581 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2582 if test "x$lang_alias" = x
2584 echo "$lang doesn't set \$language." 1>&2
2587 case ${build_by_default},${enable_languages}, in
2588 *,$lang_alias,*) add_this_lang=yes ;;
2589 no,*) add_this_lang=no ;;
2590 *,all,*) add_this_lang=yes ;;
2591 *) add_this_lang=no ;;
2593 found_languages="${found_languages} ${lang_alias}"
2594 if test x"${add_this_lang}" = xyes; then
2596 ${srcdir}/ada/config-lang.in)
2597 if test x$have_gnat = xyes ; then
2598 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2602 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2612 for expected_language in ${expected_languages} ..
2614 if test "${expected_language}" != ..; then
2615 missing_language="${expected_language}"
2616 if test "${expected_language}" = "c" \
2617 || test "${expected_language}" = "all"; then
2620 for found_language in ${found_languages} ..
2622 if test "${found_language}" != ..; then
2623 if test "${expected_language}" = "${found_language}"; then
2628 if test "x${missing_language}" != x; then
2629 missing_languages="${missing_languages} ${missing_language}"
2634 if test "x$missing_languages" != x; then
2636 The following requested languages were not found:${missing_languages}
2637 The following languages were available: c${found_languages}])
2640 # Make gthr-default.h if we have a thread file.
2642 if test $thread_file != single; then
2643 rm -f gthr-default.h
2644 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2645 gthread_flags=-DHAVE_GTHR_DEFAULT
2647 AC_SUBST(gthread_flags)
2649 # Find out what GC implementation we want, or may, use.
2651 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2658 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2663 echo "Using $GGC for garbage collection."
2665 # Use the system's zlib library.
2667 zlibinc="-I\$(srcdir)/../zlib"
2668 AC_ARG_WITH(system-zlib,
2669 [ --with-system-zlib use installed libz],
2676 dnl Very limited version of automake's enable-maintainer-mode
2678 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2679 dnl maintainer-mode is disabled by default
2680 AC_ARG_ENABLE(maintainer-mode,
2681 [ --enable-maintainer-mode
2682 enable make rules and dependencies not useful
2683 (and sometimes confusing) to the casual installer],
2684 maintainer_mode=$enableval,
2687 AC_MSG_RESULT($maintainer_mode)
2689 if test "$maintainer_mode" = "yes"; then
2696 # Make empty files to contain the specs and options for each language.
2697 # Then add #include lines to for a compiler that has specs and/or options.
2702 for subdir in . $subdirs
2704 if test -f $srcdir/$subdir/lang.opt; then
2705 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2707 if test -f $srcdir/$subdir/lang-specs.h; then
2708 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2710 if test -f $srcdir/$subdir/$subdir-tree.def; then
2711 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2715 # These (without "all_") are set in each config-lang.in.
2716 # `language' must be a single word so is spelled singularly.
2721 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2722 # List of language makefile fragments.
2724 # List of language subdirectory makefiles. Deprecated.
2726 # Files for gengtype
2727 all_gtfiles="$target_gtfiles"
2728 # Files for gengtype with language
2729 all_gtfiles_files_langs=
2730 all_gtfiles_files_files=
2732 # Add the language fragments.
2733 # Languages are added via two mechanisms. Some information must be
2734 # recorded in makefile variables, these are defined in config-lang.in.
2735 # We accumulate them and plug them into the main Makefile.
2736 # The other mechanism is a set of hooks for each of the main targets
2737 # like `clean', `install', etc.
2739 language_hooks="Make-hooks"
2741 for s in .. $subdirs
2751 . ${srcdir}/$s/config-lang.in
2752 if test "x$language" = x
2754 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2757 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2758 if test -f ${srcdir}/$s/Makefile.in
2759 then all_lang_makefiles="$s/Makefile"
2761 all_languages="$all_languages $language"
2762 if test "x$boot_language" = xyes
2764 all_boot_languages="$all_boot_languages $language"
2766 all_compilers="$all_compilers $compilers"
2767 all_stagestuff="$all_stagestuff $stagestuff"
2768 all_outputs="$all_outputs $outputs"
2769 all_gtfiles="$all_gtfiles $gtfiles"
2770 for f in .. $gtfiles
2774 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2775 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2781 # Pick up gtfiles for c
2784 . ${srcdir}/c-config-lang.in
2785 all_gtfiles="$all_gtfiles $gtfiles"
2786 for f in .. $gtfiles
2790 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2791 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2796 for language in .. $all_languages
2798 if test $language != ".."
2800 check_languages="$check_languages check-$language"
2804 # Since we can't use `::' targets, we link each language in
2805 # with a set of hooks, reached indirectly via lang.${target}.
2809 target_list="all.build all.cross start.encap rest.encap tags \
2810 info dvi generated-manpages \
2811 install-normal install-common install-info install-man \
2813 mostlyclean clean distclean extraclean maintainer-clean \
2814 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2815 for t in $target_list
2818 for lang in .. $all_languages
2820 if test $lang != ".."; then
2824 echo "lang.$t: $x" >> Make-hooks
2829 echo "dir ." > .gdbinit
2830 echo "dir ${srcdir}" >> .gdbinit
2831 if test x$gdb_needs_out_file_path = xyes
2833 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2835 if test "x$subdirs" != x; then
2838 echo "dir ${srcdir}/$s" >> .gdbinit
2841 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2843 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2844 # absolute path for gcc_tooldir based on inserting the number of up-directory
2845 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2846 # $(libsubdir)/@(unlibsubdir) based path.
2847 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2848 # make and thus we'd get different behavior depending on where we built the
2850 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2851 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2853 changequote(<<, >>)dnl
2854 # An explanation of the sed strings:
2855 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2856 # -e 's|/$||' match a trailing forward slash and eliminates it
2857 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2858 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2860 # (*) Note this pattern overwrites the first character of the string
2861 # with a forward slash if one is not already present. This is not a
2862 # problem because the exact names of the sub-directories concerned is
2863 # unimportant, just the number of them matters.
2865 # The practical upshot of these patterns is like this:
2867 # prefix exec_prefix result
2868 # ------ ----------- ------
2870 # /foo/ /foo/bar ../
2871 # /foo /foo/bar/ ../
2872 # /foo/ /foo/bar/ ../
2873 # /foo /foo/bar/ugg ../../
2876 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2877 changequote([, ])dnl
2879 AC_SUBST(gcc_tooldir)
2882 # Find a directory in which to install a shared libgcc.
2884 AC_ARG_ENABLE(version-specific-runtime-libs,
2885 [ --enable-version-specific-runtime-libs
2886 specify that runtime libraries should be
2887 installed in a compiler-specific directory])
2889 AC_ARG_WITH(slibdir,
2890 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2891 slibdir="$with_slibdir",
2892 if test "${enable_version_specific_runtime_libs+set}" = set; then
2893 slibdir='$(libsubdir)'
2894 elif test "$host" != "$target"; then
2895 slibdir='$(build_tooldir)/lib'
2901 objdir=`${PWDCMD-pwd}`
2904 # Substitute configuration variables
2907 AC_SUBST(all_boot_languages)
2908 AC_SUBST(all_compilers)
2909 AC_SUBST(all_gtfiles)
2910 AC_SUBST(all_gtfiles_files_langs)
2911 AC_SUBST(all_gtfiles_files_files)
2912 AC_SUBST(all_lang_makefrags)
2913 AC_SUBST(all_lang_makefiles)
2914 AC_SUBST(all_languages)
2915 AC_SUBST(all_stagestuff)
2916 AC_SUBST(build_exeext)
2917 AC_SUBST(build_install_headers_dir)
2918 AC_SUBST(build_xm_file_list)
2919 AC_SUBST(build_xm_include_list)
2920 AC_SUBST(build_xm_defines)
2921 AC_SUBST(check_languages)
2922 AC_SUBST(cc_set_by_configure)
2923 AC_SUBST(quoted_cc_set_by_configure)
2924 AC_SUBST(cpp_install_dir)
2925 AC_SUBST(xmake_file)
2926 AC_SUBST(tmake_file)
2927 AC_SUBST(extra_headers_list)
2928 AC_SUBST(extra_objs)
2929 AC_SUBST(extra_parts)
2930 AC_SUBST(extra_passes)
2931 AC_SUBST(extra_programs)
2932 AC_SUBST(float_h_file)
2933 AC_SUBST(gcc_config_arguments)
2934 AC_SUBST(gcc_gxx_include_dir)
2935 AC_SUBST(libstdcxx_incdir)
2936 AC_SUBST(gcc_version)
2937 AC_SUBST(gcc_version_full)
2938 AC_SUBST(gcc_version_trigger)
2939 AC_SUBST(host_exeext)
2940 AC_SUBST(host_extra_gcc_objs)
2941 AC_SUBST(host_xm_file_list)
2942 AC_SUBST(host_xm_include_list)
2943 AC_SUBST(host_xm_defines)
2944 AC_SUBST(out_host_hook_obj)
2946 AC_SUBST(lang_opt_files)
2947 AC_SUBST(lang_specs_files)
2948 AC_SUBST(lang_tree_files)
2949 AC_SUBST(local_prefix)
2951 AC_SUBST(objc_boehm_gc)
2953 AC_SUBST(out_object_file)
2954 AC_SUBST(stage_prefix_set_by_configure)
2955 AC_SUBST(quoted_stage_prefix_set_by_configure)
2956 AC_SUBST(symbolic_link)
2957 AC_SUBST(thread_file)
2958 AC_SUBST(tm_file_list)
2959 AC_SUBST(tm_include_list)
2960 AC_SUBST(tm_defines)
2961 AC_SUBST(tm_p_file_list)
2962 AC_SUBST(tm_p_include_list)
2963 AC_SUBST(xm_file_list)
2964 AC_SUBST(xm_include_list)
2965 AC_SUBST(xm_defines)
2966 AC_SUBST(target_alias)
2967 AC_SUBST(c_target_objs)
2968 AC_SUBST(cxx_target_objs)
2969 AC_SUBST(target_cpu_default)
2971 AC_SUBST_FILE(language_hooks)
2973 # Echo that links are built
2974 if test x$host = x$target
2982 if test x$host != x$build
2984 str3=" on a $build system"
2987 if test "x$str2" != x || test "x$str3" != x
2992 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2994 if test "x$str2" != x || test "x$str3" != x
2996 echo " ${str2}${str3}." 1>&2
2999 # Configure the subdirectories
3000 # AC_CONFIG_SUBDIRS($subdirs)
3002 # Create the Makefile
3003 # and configure language subdirectories
3004 AC_OUTPUT($all_outputs,
3006 case x$CONFIG_HEADERS in
3007 xauto-host.h:config.in)
3010 # Make sure all the subdirs exist.
3011 for d in .. $subdirs
3013 if test $d != ..; then
3014 test -d $d || mkdir $d
3017 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3018 # bootstrapping and the installation procedure can still use
3019 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3020 # FLAGS_TO_PASS has been modified to solve the problem there.
3021 # This is virtually a duplicate of what happens in configure.lang; we do
3022 # an extra check to make sure this only happens if ln -s can be used.
3023 if test "$symbolic_link" = "ln -s"; then
3024 for d in .. ${subdirs} fixinc ; do
3025 if test $d != ..; then
3026 STARTDIR=`${PWDCMD-pwd}`
3028 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3031 $symbolic_link ../$t $t 2>/dev/null
3039 symbolic_link='$symbolic_link'