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 # --------------------------------------------------------
968 build_install_headers_dir=install-headers-tar
975 # Decode the host machine, then the target machine.
976 # For the host machine, we save the xm_file variable as host_xm_file;
977 # then we decode the target machine and forget everything else
978 # that came from the host machine.
979 for machine in $build $host $target; do
980 . ${srcdir}/config.gcc
983 extra_objs="${host_extra_objs} ${extra_objs}"
985 # Default the target-machine variables that were not explicitly set.
986 if test x"$tm_file" = x
987 then tm_file=$cpu_type/$cpu_type.h; fi
989 if test x"$extra_headers" = x
990 then extra_headers=; fi
992 if test x$md_file = x
993 then md_file=$cpu_type/$cpu_type.md; fi
995 if test x$out_file = x
996 then out_file=$cpu_type/$cpu_type.c; fi
998 if test x"$tmake_file" = x
999 then tmake_file=$cpu_type/t-$cpu_type
1002 if test x"$dwarf2" = xyes
1003 then tm_file="$tm_file tm-dwarf2.h"
1006 # Say what files are being used for the output code and MD file.
1007 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1008 echo "Using \`$srcdir/config/$md_file' as machine description file."
1010 # If any of the xm_file variables contain nonexistent files, warn
1011 # about them and drop them.
1014 for x in $build_xm_file; do
1015 if test -f $srcdir/config/$x
1017 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1023 for x in $host_xm_file; do
1024 if test -f $srcdir/config/$x
1026 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1032 for x in $xm_file; do
1033 if test -f $srcdir/config/$x
1035 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1041 for f in $tm_file; do
1044 if test $count = ax; then
1045 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1047 echo "Using the following target machine macro files:"
1048 for f in $tm_file; do
1049 echo " $srcdir/config/$f"
1053 if test x$need_64bit_hwint = xyes; then
1054 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1055 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1059 for f in $host_xm_file; do
1062 if test $count = a; then
1064 elif test $count = ax; then
1065 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1067 echo "Using the following host machine macro files:"
1068 for f in $host_xm_file; do
1069 echo " $srcdir/config/$f"
1072 echo "Using ${out_host_hook_obj} for host machine hooks."
1074 if test "$host_xm_file" != "$build_xm_file"; then
1076 for f in $build_xm_file; do
1079 if test $count = a; then
1081 elif test $count = ax; then
1082 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1084 echo "Using the following build machine macro files:"
1085 for f in $build_xm_file; do
1086 echo " $srcdir/config/$f"
1091 if test x$thread_file = x; then
1092 if test x$target_thread_file != x; then
1093 thread_file=$target_thread_file
1095 thread_file='single'
1099 if test x$enable___cxa_atexit = xyes || \
1100 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1101 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1102 [Define if you want to use __cxa_atexit, rather than atexit, to
1103 register C++ destructors for local statics and global objects.
1104 This is essential for fully standards-compliant handling of
1105 destructors, but requires __cxa_atexit in libc.])
1108 # Look for a file containing extra machine modes.
1109 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1110 extra_modes_file='$(srcdir)'/config/${extra_modes}
1111 AC_SUBST(extra_modes_file)
1112 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1113 [Define to the name of a file containing a list of extra machine modes
1114 for this architecture.])
1115 AC_DEFINE(EXTRA_CC_MODES, 1,
1116 [Define if the target architecture needs extra machine modes to represent
1117 the results of comparisons.])
1120 # auto-host.h is the file containing items generated by autoconf and is
1121 # the first file included by config.h.
1122 # If host=build, it is correct to have bconfig include auto-host.h
1123 # as well. If host!=build, we are in error and need to do more
1124 # work to find out the build config parameters.
1125 if test x$host = x$build
1127 build_auto=auto-host.h
1130 # We create a subdir, then run autoconf in the subdir.
1131 # To prevent recursion we set host and build for the new
1132 # invocation of configure to the build for this invocation
1139 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1140 *) realsrcdir=../${srcdir};;
1142 saved_CFLAGS="${CFLAGS}"
1143 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1144 ${realsrcdir}/configure \
1145 --target=$target_alias --host=$build_alias --build=$build_alias
1146 CFLAGS="${saved_CFLAGS}"
1148 # We just finished tests for the build machine, so rename
1149 # the file auto-build.h in the gcc directory.
1150 mv auto-host.h ../auto-build.h
1153 build_auto=auto-build.h
1154 FORBUILD=../${build_subdir}
1158 tm_file="${tm_file} defaults.h"
1159 tm_p_file="${tm_p_file} tm-preds.h"
1160 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1161 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1162 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1163 # put this back in temporarily.
1164 xm_file="ansidecl.h ${xm_file}"
1170 # Get the version trigger filename from the toplevel
1171 if test "${with_gcc_version_trigger+set}" = set; then
1172 gcc_version_trigger=$with_gcc_version_trigger
1174 gcc_version_trigger=${srcdir}/version.c
1177 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1178 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1180 # Compile in configure arguments.
1181 if test -f configargs.h ; then
1182 # Being re-configured.
1183 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1184 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1186 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1188 cat > configargs.h <<EOF
1189 /* Generated automatically. */
1190 static const char configuration_arguments[] = "$gcc_config_arguments";
1191 static const char thread_model[] = "$thread_file";
1193 static const struct {
1194 const char *name, *value;
1195 } configure_default_options[] = $configure_default_options;
1199 # Internationalization
1201 VERSION="$gcc_version"
1205 ZW_GNU_GETTEXT_SISTER_DIR
1207 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1208 # -liconv on the link line twice.
1209 case "$LIBINTL" in *$LIBICONV*)
1213 # Windows32 Registry support for specifying GCC installation paths.
1214 AC_ARG_ENABLE(win32-registry,
1215 [ --disable-win32-registry
1216 disable lookup of installation paths in the
1217 Registry on Windows hosts
1218 --enable-win32-registry enable registry lookup (default)
1219 --enable-win32-registry=KEY
1220 use KEY instead of GCC version as the last portion
1221 of the registry key],,)
1223 win32 | pe | cygwin* | mingw32* | uwin*)
1224 AC_MSG_CHECKING(whether windows registry support is requested)
1225 if test "x$enable_win32_registry" != xno; then
1226 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1227 [Define to 1 if installation paths should be looked up in Windows32
1228 Registry. Ignored on non windows32 hosts.])
1230 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1235 # Check if user specified a different registry key.
1236 case "x${enable_win32_registry}" in
1239 gcc_cv_win32_registry_key="$VERSION"
1242 # no registry lookup.
1243 gcc_cv_win32_registry_key=''
1246 # user-specified key.
1247 gcc_cv_win32_registry_key="$enable_win32_registry"
1251 if test "x$enable_win32_registry" != xno; then
1252 AC_MSG_CHECKING(registry key on windows hosts)
1253 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1254 [Define to be the last portion of registry key on windows hosts.])
1255 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1260 # Get an absolute path to the GCC top-level source directory
1261 holddir=`${PWDCMD-pwd}`
1263 topdir=`${PWDCMD-pwd}`
1266 # Conditionalize the makefile for this host machine.
1267 # Make-host contains the concatenation of all host makefile fragments
1268 # [there can be more than one]. This file is built by configure.frag.
1269 host_overrides=Make-host
1270 dep_host_xmake_file=
1271 for f in .. ${host_xmake_file}
1273 if test -f ${srcdir}/config/$f
1275 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1279 # Conditionalize the makefile for this target machine.
1280 # Make-target contains the concatenation of all host makefile fragments
1281 # [there can be more than one]. This file is built by configure.frag.
1282 target_overrides=Make-target
1284 for f in .. ${tmake_file}
1286 if test -f ${srcdir}/config/$f
1288 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1292 symbolic_link='ln -s'
1294 # If the host doesn't support symlinks, modify CC in
1295 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1296 # Otherwise, we can use "CC=$(CC)".
1298 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1300 cc_set_by_configure="\$(CC)"
1301 quoted_cc_set_by_configure="\$(CC)"
1302 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1303 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1306 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1308 symbolic_link="cp -p"
1312 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1313 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1314 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1315 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1319 out_object_file=`basename $out_file .c`.o
1323 for f in $tm_file; do
1326 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1327 tm_include_list="${tm_include_list} $f"
1330 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1331 tm_include_list="${tm_include_list} config/$f"
1338 for f in $tm_p_file; do
1341 tm_p_file_list="${tm_p_file_list} $f"
1342 tm_p_include_list="${tm_p_include_list} $f"
1345 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1346 tm_p_include_list="${tm_p_include_list} config/$f"
1352 for f in $xm_file; do
1355 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1356 xm_include_list="${xm_include_list} $f"
1359 xm_file_list="${xm_file_list} $f"
1360 xm_include_list="${xm_include_list} $f"
1363 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1364 xm_include_list="${xm_include_list} config/$f"
1370 host_xm_include_list=
1371 for f in $host_xm_file; do
1374 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1375 host_xm_include_list="${host_xm_include_list} $f"
1378 host_xm_file_list="${host_xm_file_list} $f"
1379 host_xm_include_list="${host_xm_include_list} $f"
1382 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1383 host_xm_include_list="${host_xm_include_list} config/$f"
1389 for f in $build_xm_file; do
1392 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1393 build_xm_include_list="${build_xm_include_list} $f"
1395 auto-build.h | auto-host.h )
1396 build_xm_file_list="${build_xm_file_list} $f"
1397 build_xm_include_list="${build_xm_include_list} $f"
1400 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1401 build_xm_include_list="${build_xm_include_list} config/$f"
1406 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1407 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1408 CROSS= AC_SUBST(CROSS)
1409 ALL=all.internal AC_SUBST(ALL)
1410 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1411 if test x$host != x$target
1413 CROSS="-DCROSS_COMPILE"
1415 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1416 case "$host","$target" in
1417 # Darwin crosses can use the host system's libraries and headers,
1418 # because of the fat library support. Of course, it must be the
1419 # same version of Darwin on both sides. Allow the user to
1420 # just say --target=foo-darwin without a version number to mean
1421 # "the version on this system".
1422 *-*-darwin*,*-*-darwin*)
1423 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1424 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1425 if test $hostos = $targetos -o $targetos = darwin ; then
1427 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1432 i?86-*-*,x86_64-*-* \
1433 | powerpc*-*-*,powerpc64*-*-*)
1434 CROSS="$CROSS -DNATIVE_CROSS" ;;
1436 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1437 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1438 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1441 # If this is a cross-compiler that does not
1442 # have its own set of headers then define
1445 # If this is using newlib, without having the headers available now,
1446 # then define inhibit_libc in LIBGCC2_CFLAGS.
1447 # This prevents libgcc2 from containing any code which requires libc
1450 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1451 test x$with_newlib = xyes ; } &&
1452 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1453 inhibit_libc=-Dinhibit_libc
1455 AC_SUBST(inhibit_libc)
1457 # When building gcc with a cross-compiler, we need to adjust things so
1458 # that the generator programs are still built with the native compiler.
1459 # Also, we cannot run fixincludes or fix-header.
1461 # These are the normal (build=host) settings:
1462 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1463 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1464 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1465 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1467 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1468 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1470 # And these apply if build != host, or we are generating coverage data
1471 if test x$build != x$host || test "x$coverage_flags" != x
1474 BUILD_PREFIX_1=build-
1475 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1477 if test "x$TARGET_SYSTEM_ROOT" = x; then
1483 # Expand extra_headers to include complete path.
1484 # This substitutes for lots of t-* files.
1486 if test "x$extra_headers" = x
1489 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1490 for file in $extra_headers;
1492 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1496 # Add a definition of USE_COLLECT2 if system wants one.
1497 case $use_collect2 in
1498 no) use_collect2= ;;
1501 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1502 xm_defines="${xm_defines} USE_COLLECT2"
1506 # Identify the assembler which will work hand-in-glove with the newly
1507 # built GCC, so that we can examine its features. This is the assembler
1508 # which will be driven by the driver program.
1510 # If build != host, and we aren't building gas in-tree, we identify a
1511 # build->target assembler and hope that it will have the same features
1512 # as the host->target assembler we'll be using.
1513 AC_MSG_CHECKING(what assembler to use)
1516 gcc_cv_gas_major_version=
1517 gcc_cv_gas_minor_version=
1518 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1519 if test -x "$DEFAULT_ASSEMBLER"; then
1520 gcc_cv_as="$DEFAULT_ASSEMBLER"
1521 elif test -x "$AS"; then
1523 elif test -x as$host_exeext; then
1524 # Build using assembler in the current directory.
1525 gcc_cv_as=./as$host_exeext
1526 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1527 && test -f ../gas/Makefile; then
1528 # Single tree build which includes gas.
1530 _gcc_COMPUTE_GAS_VERSION
1531 rm -f as$host_exeext
1532 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1533 in_tree_gas_is_elf=no
1534 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1535 || (grep 'obj_format = multi' ../gas/Makefile \
1536 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1538 in_tree_gas_is_elf=yes
1542 if test "x$gcc_cv_as" = x; then
1543 # Search the same directories that the installed compiler will
1544 # search. Else we may find the wrong assembler and lose. If we
1545 # do not find a suitable assembler binary, then try the user's
1548 # Also note we have to check MD_EXEC_PREFIX before checking the
1549 # user's path. Unfortunately, there is no good way to get at the
1550 # value of MD_EXEC_PREFIX here. So we do a brute force search
1551 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1552 # to be fixed as part of the make/configure rewrite too.
1554 if test "x$exec_prefix" = xNONE; then
1555 if test "x$prefix" = xNONE; then
1556 test_prefix=/usr/local
1561 test_prefix=$exec_prefix
1564 # If the loop below does not find an assembler, then use whatever
1565 # one we can find in the users's path.
1567 if test "x$program_prefix" != xNONE; then
1568 gcc_cv_as=${program_prefix}as$host_exeext
1570 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1573 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1574 $test_prefix/lib/gcc-lib/$target_alias \
1575 /usr/lib/gcc/$target_alias/$gcc_version \
1576 /usr/lib/gcc/$target_alias \
1577 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1578 $test_prefix/$target_alias/bin"
1580 if test x$host = x$target; then
1581 test_dirs="$test_dirs \
1586 /bsd43/usr/lib/cmplrs/cc \
1587 /usr/cross64/usr/bin \
1588 /usr/lib/cmplrs/cc \
1589 /sysv/usr/lib/cmplrs/cc \
1590 /svr4/usr/lib/cmplrs/cc \
1594 for dir in $test_dirs; do
1595 if test -x $dir/as$host_exeext; then
1596 gcc_cv_as=$dir/as$host_exeext
1601 case $in_tree_gas in
1603 AC_MSG_RESULT("newly built gas")
1606 AC_MSG_RESULT($gcc_cv_as)
1610 # Identify the linker which will work hand-in-glove with the newly
1611 # built GCC, so that we can examine its features. This is the linker
1612 # which will be driven by the driver program.
1614 # If build != host, and we aren't building gas in-tree, we identify a
1615 # build->target linker and hope that it will have the same features
1616 # as the host->target linker we'll be using.
1617 AC_MSG_CHECKING(what linker to use)
1620 gcc_cv_gld_major_version=
1621 gcc_cv_gld_minor_version=
1622 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1623 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1624 if test -x "$DEFAULT_LINKER"; then
1625 gcc_cv_ld="$DEFAULT_LINKER"
1626 elif test -x "$LD"; then
1628 elif test -x collect-ld$host_exeext; then
1629 # Build using linker in the current directory.
1630 gcc_cv_ld=./collect-ld$host_exeext
1631 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1632 && test -f ../ld/Makefile; then
1633 # Single tree build which includes ld.
1635 in_tree_ld_is_elf=no
1636 if (grep 'EMUL = .*elf' ../ld/Makefile \
1637 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1638 in_tree_ld_is_elf=yes
1640 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
1643 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1645 if test x$gcc_cv_gld_version != x; then
1650 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1651 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1653 rm -f collect-ld$host_exeext
1654 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1658 if test "x$gcc_cv_ld" = x; then
1659 # Search the same directories that the installed compiler will
1660 # search. Else we may find the wrong linker and lose. If we
1661 # do not find a suitable linker binary, then try the user's
1664 # Also note we have to check MD_EXEC_PREFIX before checking the
1665 # user's path. Unfortunately, there is no good way to get at the
1666 # value of MD_EXEC_PREFIX here. So we do a brute force search
1667 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1668 # to be fixed as part of the make/configure rewrite too.
1670 if test "x$exec_prefix" = xNONE; then
1671 if test "x$prefix" = xNONE; then
1672 test_prefix=/usr/local
1677 test_prefix=$exec_prefix
1680 # If the loop below does not find an linker, then use whatever
1681 # one we can find in the users's path.
1683 if test "x$program_prefix" != xNONE; then
1684 gcc_cv_ld=${program_prefix}ld$host_exeext
1686 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1689 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1690 $test_prefix/lib/gcc-lib/$target_alias \
1691 /usr/lib/gcc/$target_alias/$gcc_version \
1692 /usr/lib/gcc/$target_alias \
1693 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1694 $test_prefix/$target_alias/bin"
1696 if test x$host = x$target; then
1697 test_dirs="$test_dirs \
1702 /bsd43/usr/lib/cmplrs/cc \
1703 /usr/cross64/usr/bin \
1704 /usr/lib/cmplrs/cc \
1705 /sysv/usr/lib/cmplrs/cc \
1706 /svr4/usr/lib/cmplrs/cc \
1710 for dir in $test_dirs; do
1711 if test -x $dir/ld$host_exeext; then
1712 gcc_cv_ld=$dir/ld$host_exeext
1719 AC_MSG_RESULT("newly built ld")
1722 AC_MSG_RESULT($gcc_cv_ld)
1726 # Figure out what nm we will be using.
1727 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1728 AC_MSG_CHECKING(what nm to use)
1730 if test -x nm$host_exeext; then
1731 gcc_cv_nm=./nm$host_exeext
1732 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1733 && test -f ../binutils/Makefile; then
1734 # Single tree build which includes binutils.
1736 gcc_cv_nm=./nm$host_exeext
1737 rm -f nm$host_exeext
1738 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1739 elif test "x$program_prefix" != xNONE; then
1740 gcc_cv_nm=${program_prefix}nm$host_exeext
1742 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1745 yes) AC_MSG_RESULT("newly built nm") ;;
1746 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1749 # Figure out what objdump we will be using.
1750 AC_MSG_CHECKING(what objdump to use)
1752 if test -x objdump$host_exeext; then
1753 gcc_cv_objdump=./objdump$host_exeext
1754 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1755 && test -f ../binutils/Makefile; then
1756 # Single tree build which includes binutils.
1758 gcc_cv_objdump=./objdump$host_exeext
1759 rm -f objdump$host_exeext
1760 $symbolic_link ../binutils/objdump$host_exeext \
1761 objdump$host_exeext 2>/dev/null
1762 elif test "x$program_prefix" != xNONE; then
1763 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1765 gcc_cv_objdump=`echo objdump | \
1766 sed ${program_transform_name}`$host_exeext
1768 case $in_tree_objdump in
1769 yes) AC_MSG_RESULT("newly built objdump") ;;
1770 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1773 # Figure out what assembler alignment features are present.
1774 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1778 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1779 [Define if your assembler supports .balign and .p2align.])])
1781 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1784 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1785 [Define if your assembler supports specifying the maximum number
1786 of bytes to skip when using the GAS .p2align command.])])
1788 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1790 [conftest_label1: .word 0
1792 conftest_label2: .word 0
1794 [if test x$gcc_cv_nm != x; then
1795 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1796 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1797 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1799 else gcc_cv_as_subsection_m1=yes
1801 rm -f conftest.nm1 conftest.nm2
1803 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1804 [Define if your assembler supports .subsection and .subsection -1 starts
1805 emitting at the beginning of your section.])])
1807 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1810 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1812 # .hidden needs to be supported in both the assembler and the linker,
1813 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1814 # This is irritatingly difficult to feature test for; we have to check the
1815 # date string after the version number. If we've got an in-tree
1816 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1818 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1819 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1824 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1825 [if test $in_tree_ld = yes ; then
1827 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1828 && test $in_tree_ld_is_elf = yes; then
1829 gcc_cv_ld_hidden=yes
1832 gcc_cv_ld_hidden=yes
1833 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1834 if echo "$ld_ver" | grep GNU > /dev/null; then
1836 ld_vers=`echo $ld_ver | sed -n \
1837 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1838 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1839 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1840 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1841 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1842 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1843 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1844 if test 0"$ld_date" -lt 20020404; then
1845 if test -n "$ld_date"; then
1846 # If there was date string, but was earlier than 2002-04-04, fail
1848 elif test -z "$ld_vers"; then
1849 # If there was no date string nor ld version number, something is wrong
1852 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1853 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1854 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1855 test -z "$ld_vers_patch" && ld_vers_patch=0
1856 if test "$ld_vers_major" -lt 2; then
1858 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1859 gcc_cv_ld_hidden="no"
1860 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1868 mips-sgi-irix[[56]]*)
1869 if test x"$gnu_ld_flag" = x"no"; then
1870 # Even if using gas with .hidden support, the resulting object files
1871 # cannot be linked with the IRIX 5 and IRIX 6 O32 linkers. With
1872 # the IRIX 6 N32 and N64 linkers, the problem is that the linker
1873 # refuses to accept -call_shared (passed by default to the
1874 # linker) and -r (used to link the object file generated without
1875 # .hidden directives with one that hides symbols), so we also lose.
1882 libgcc_visibility=no
1883 AC_SUBST(libgcc_visibility)
1884 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1885 libgcc_visibility=yes
1886 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1887 [Define if your assembler and linker support .hidden.])
1890 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1891 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1899 [# GAS versions before 2.11 do not support uleb128,
1900 # despite appearing to.
1901 # ??? There exists an elf-specific test that will crash
1902 # the assembler. Perhaps it's better to figure out whether
1903 # arbitrary sections are supported and try the test.
1904 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1905 if echo "$as_ver" | grep GNU > /dev/null; then
1907 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1908 as_major=`echo $as_ver | sed 's/\..*//'`
1909 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1911 if test $as_major -eq 2 && test $as_minor -lt 11
1913 else gcc_cv_as_leb128=yes
1916 [AC_DEFINE(HAVE_AS_LEB128, 1,
1917 [Define if your assembler supports .sleb128 and .uleb128.])])
1919 # GAS versions up to and including 2.11.0 may mis-optimize
1921 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1929 .section .eh_frame,"aw",@progbits
1931 .4byte .LECIE1-.LSCIE1
1945 .4byte .LEFDE1-.LASFDE1
1947 .4byte .LASFDE1-__FRAME_BEGIN__
1955 [ cat > conftest.lit <<EOF
1956 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1957 0010 01000000 12000000 18000000 00000000 ................
1958 0020 08000000 04080000 0044 .........D
1960 cat > conftest.big <<EOF
1961 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1962 0010 00000001 00000012 00000018 00000000 ................
1963 0020 00000008 04000000 0844 .........D
1965 # If the assembler didn't choke, and we can objdump,
1966 # and we got the correct data, then succeed.
1967 if test x$gcc_cv_objdump != x \
1968 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1969 | tail -3 > conftest.got \
1970 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1971 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1973 gcc_cv_as_eh_frame=yes
1974 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
1975 gcc_cv_as_eh_frame=buggy
1977 # Uh oh, what do we do now?
1978 gcc_cv_as_eh_frame=no
1981 if test $gcc_cv_as_eh_frame = buggy; then
1982 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1983 [Define if your assembler mis-optimizes .eh_frame data.])
1986 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
1987 [elf,2,12,0], [--fatal-warnings],
1988 [.section .rodata.str, "aMS", @progbits, 1],,
1989 [AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1990 [Define if your assembler supports marking sections with SHF_MERGE flag.])])
1992 # Thread-local storage - the check is heavily parametrized.
2001 .section ".tdata","awT",@progbits
2004 ldq $27,__tls_get_addr($29) !literal!1
2005 lda $16,foo($29) !tlsgd!1
2006 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2007 ldq $27,__tls_get_addr($29) !literal!2
2008 lda $16,foo($29) !tlsldm!2
2009 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2010 ldq $1,foo($29) !gotdtprel
2011 ldah $2,foo($29) !dtprelhi
2012 lda $3,foo($2) !dtprello
2013 lda $4,foo($29) !dtprel
2014 ldq $1,foo($29) !gottprel
2015 ldah $2,foo($29) !tprelhi
2016 lda $3,foo($2) !tprello
2017 lda $4,foo($29) !tprel'
2024 .section ".tdata","awT",@progbits
2028 leal foo@TLSGD(,%ebx,1), %eax
2029 leal foo@TLSLDM(%ebx), %eax
2030 leal foo@DTPOFF(%eax), %edx
2031 movl foo@GOTTPOFF(%ebx), %eax
2032 subl foo@GOTTPOFF(%ebx), %eax
2033 addl foo@GOTNTPOFF(%ebx), %eax
2034 movl foo@INDNTPOFF, %eax
2035 movl $foo@TPOFF, %eax
2036 subl $foo@TPOFF, %eax
2037 leal foo@NTPOFF(%ecx), %eax'
2043 .section ".tdata","awT",@progbits
2047 leaq foo@TLSGD(%rip), %rdi
2048 leaq foo@TLSLD(%rip), %rdi
2049 leaq foo@DTPOFF(%rax), %rdx
2050 movq foo@GOTTPOFF(%rip), %rax
2051 movq $foo@TPOFF, %rax'
2057 .section ".tdata","awT",@progbits
2060 addl r16 = @ltoff(@dtpmod(foo#)), gp
2061 addl r17 = @ltoff(@dtprel(foo#)), gp
2062 addl r18 = @ltoff(@tprel(foo#)), gp
2063 addl r19 = @dtprel(foo#), gp
2064 adds r21 = @dtprel(foo#), r13
2065 movl r23 = @dtprel(foo#)
2066 addl r20 = @tprel(foo#), gp
2067 adds r22 = @tprel(foo#), r13
2068 movl r24 = @tprel(foo#)'
2074 .section ".tdata","awT",@progbits
2082 addi 3,31,ld0@got@tlsgd
2084 addi 3,31,x1@got@tlsld
2087 addis 9,3,x2@dtprel@ha
2088 addi 9,9,x2@dtprel@l
2089 lwz 9,x3@got@tprel(31)
2092 addis 9,2,x2@tprel@ha
2093 addi 9,9,x2@tprel@l'
2100 .section ".tdata","awT",@progbits
2108 addi 3,2,ld0@got@tlsgd
2114 addi 3,2,x1@got@tlsld
2120 addis 9,3,x2@dtprel@ha
2121 addi 9,9,x2@dtprel@l
2124 ld 9,x3@got@dtprel(2)
2134 .section ".tdata","awT",@progbits
2143 l %r1,foo@GOTNTPOFF(%r12)
2144 l %r1,0(%r1):tls_load:foo
2145 bas %r14,0(%r1,%r13):tls_gdcall:foo
2146 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2153 .section ".tdata","awT",@progbits
2161 lg %r1,foo@GOTNTPOFF(%r12)
2162 larl %r1,foo@INDNTPOFF
2163 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2164 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2167 tls_as_opt="-m64 -Aesame"
2170 if test -z "$tls_first_major"; then
2171 : # If we don't have a check, assume no support.
2173 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2174 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt --fatal-warnings],
2176 [AC_DEFINE(HAVE_AS_TLS, 1,
2177 [Define if your assembler supports thread-local storage.])])
2180 # Target-specific assembler checks.
2183 # All TARGET_ABI_OSF targets.
2184 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2185 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2186 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2189 extbl $3, $2, $3 !lituse_bytoff!1
2190 ldq $2, a($29) !literal!1
2191 ldq $4, b($29) !literal!2
2192 ldq_u $3, 0($2) !lituse_base!1
2193 ldq $27, f($29) !literal!5
2194 jsr $26, ($27), f !lituse_jsr!5
2195 ldah $29, 0($26) !gpdisp!3
2196 lda $0, c($29) !gprel
2197 ldah $1, d($29) !gprelhigh
2198 lda $1, d($1) !gprellow
2199 lda $29, 0($29) !gpdisp!3],,
2200 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2201 [Define if your assembler supports explicit relocations.])])
2205 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2206 [.register %g2, #scratch],,
2207 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2208 [Define if your assembler supports .register.])])
2210 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2212 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2213 [Define if your assembler supports -relax option.])])
2215 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2216 gcc_cv_as_sparc_ua_pcrel,,
2224 .uaword %r_disp32(foo)],
2225 [if test x$gcc_cv_ld != x \
2226 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2227 gcc_cv_as_sparc_ua_pcrel=yes
2230 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2231 [Define if your assembler and linker support unaligned PC relative relocs.])
2233 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2234 gcc_cv_as_sparc_ua_pcrel_hidden,,
2239 .uaword %r_disp32(foo)
2240 .byte 0x32, 0x33, 0x34
2245 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2246 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2247 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2248 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2249 if $gcc_cv_objdump -R conftest 2> /dev/null \
2250 | grep 'DISP32' > /dev/null 2>&1; then
2253 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2257 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2258 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2259 ]) # unaligned pcrel relocs
2261 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2262 gcc_cv_as_sparc_offsetable_lo10,,
2265 or %g1, %lo(ab) + 12, %g1
2266 or %g1, %lo(ab + 12), %g1],
2267 [if test x$gcc_cv_objdump != x \
2268 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2269 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2270 gcc_cv_as_offsetable_lo10=yes
2272 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2273 [Define if your assembler supports offsetable %lo().])])
2277 i[34567]86-*-* | x86_64-*-*)
2279 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2280 gcc_cv_as_ix86_filds_fists,
2281 [2,9,0],, [filds mem; fists mem],,
2282 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2283 [Define if your assembler uses the new HImode fild and fist notation.])])
2285 # This one is used unconditionally by i386.[ch]; it is to be defined
2286 # to 1 if the feature is present, 0 otherwise.
2287 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2288 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2294 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2295 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2296 [Define true if the assembler supports '.long foo@GOTOFF'.])
2300 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2301 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2303 addl r15 = @ltoffx(x#), gp
2305 ld8.mov r16 = [[r15]], x#],,
2306 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2307 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2313 *-*-aix) conftest_s=' .csect .text[PR]';;
2314 *) conftest_s=' .text';;
2316 conftest_s="$conftest_s
2319 gcc_GAS_CHECK_FEATURE([mfcr field support],
2320 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2322 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2323 [Define if your assembler supports mfcr field.])])
2327 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2328 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2329 [ lw $4,%gp_rel(foo)($4)],,
2330 [if test x$target_cpu_default = x
2331 then target_cpu_default=MASK_EXPLICIT_RELOCS
2332 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2337 # ??? Not all targets support dwarf2 debug_line, even within a version
2338 # of gas. Moreover, we need to emit a valid instruction to trigger any
2339 # info to the output file. So, as supported targets are added to gas 2.11,
2340 # add some instruction here to (also) show we expect this might work.
2341 # ??? Once 2.11 is released, probably need to add first known working
2342 # version to the per-target configury.
2344 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2345 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2346 | xstormy16*-*-* | cris-*-*)
2356 if test x"$insn" != x; then
2358 .file 1 \"conftest.s\"
2361 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2362 gcc_cv_as_dwarf2_debug_line,
2363 [elf,2,11,0],, [$conftest_s],
2364 [# ??? This fails with non-gnu grep. Maybe use objdump?
2365 if grep debug_line conftest.o > /dev/null 2>&1; then
2366 gcc_cv_as_dwarf2_debug_line=yes
2369 # The .debug_line file table must be in the exact order that
2370 # we specified the files, since these indices are also used
2371 # by DW_AT_decl_file. Approximate this test by testing if
2372 # the assembler bitches if the same index is assigned twice.
2373 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2374 gcc_cv_as_dwarf2_file_buggy,,,
2378 if test $gcc_cv_as_dwarf2_debug_line = yes \
2379 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2380 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2381 [Define if your assembler supports dwarf2 .file/.loc directives,
2382 and preserves file table indices exactly as given.])
2385 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2386 gcc_cv_as_gdwarf2_flag,
2387 [elf,2,11,0], [--gdwarf2], [$insn],,
2388 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2389 [Define if your assembler supports the --gdwarf2 option.])])
2391 gcc_GAS_CHECK_FEATURE([--gstabs option],
2392 gcc_cv_as_gstabs_flag,
2393 [elf,2,11,0], [--gstabs], [$insn],
2394 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2395 # and warns about it, but still exits successfully. So check for
2397 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2399 else gcc_cv_as_gstabs_flag=yes
2401 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2402 [Define if your assembler supports the --gstabs option.])])
2405 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2406 gcc_cv_ld_ro_rw_mix=unknown
2407 if test $in_tree_ld = yes ; then
2408 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2409 && test $in_tree_ld_is_elf = yes; then
2410 gcc_cv_ld_ro_rw_mix=read-write
2412 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2413 echo '.section myfoosect, "a"' > conftest1.s
2414 echo '.section myfoosect, "aw"' > conftest2.s
2415 echo '.byte 1' >> conftest2.s
2416 echo '.section myfoosect, "a"' > conftest3.s
2417 echo '.byte 0' >> conftest3.s
2418 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2419 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2420 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2421 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2422 conftest2.o conftest3.o > /dev/null 2>&1; then
2423 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2424 | sed -e '/myfoosect/!d' -e N`
2425 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2426 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2427 gcc_cv_ld_ro_rw_mix=read-only
2429 gcc_cv_ld_ro_rw_mix=read-write
2434 rm -f conftest.* conftest[123].*
2437 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2438 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2439 [Define if your linker links a mix of read-only
2440 and read-write sections into a read-write section.])
2442 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2444 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2445 gcc_cv_ld_eh_frame_hdr=no
2446 if test $in_tree_ld = yes ; then
2447 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2448 && test $in_tree_ld_is_elf = yes; then
2449 gcc_cv_ld_eh_frame_hdr=yes
2451 elif test x$gcc_cv_ld != x; then
2452 # Check if linker supports --eh-frame-hdr option
2453 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2454 gcc_cv_ld_eh_frame_hdr=yes
2457 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2458 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2459 [Define if your linker supports --eh-frame-hdr option.])
2461 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2463 AC_MSG_CHECKING(linker position independent executable support)
2465 if test $in_tree_ld = yes ; then
2466 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2467 && test $in_tree_ld_is_elf = yes; then
2470 elif test x$gcc_cv_ld != x; then
2471 # Check if linker supports -pie option
2472 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2476 if test x"$gcc_cv_ld_pie" = xyes; then
2477 AC_DEFINE(HAVE_LD_PIE, 1,
2478 [Define if your linker supports -pie option.])
2480 AC_MSG_RESULT($gcc_cv_ld_pie)
2482 # Miscellaneous target-specific checks.
2485 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2486 gcc_cv_mips_libgloss_startup=no
2487 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2488 if test "x$exec_prefix" = xNONE; then
2489 if test "x$prefix" = xNONE; then
2490 test_prefix=/usr/local
2495 test_prefix=$exec_prefix
2497 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2499 if grep '^STARTUP' $f > /dev/null 2>&1; then
2500 gcc_cv_mips_libgloss_startup=yes
2504 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2505 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2506 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2508 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2512 if test x$with_sysroot = x && test x$host = x$target \
2513 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2514 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2515 [Define to PREFIX/include if cpp should also search that directory.])
2518 # Figure out what language subdirectories are present.
2519 # Look if the user specified --enable-languages="..."; if not, use
2520 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2522 # NB: embedded tabs in this IF block -- do not untabify
2523 if test x"${enable_languages+set}" != xset; then
2524 if test x"${LANGUAGES+set}" = xset; then
2525 enable_languages="${LANGUAGES}"
2526 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2529 enable_languages=all
2532 if test x"${enable_languages}" = x \
2533 || test x"${enable_languages}" = xyes;
2535 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2538 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2540 # First scan to see if an enabled language requires some other language.
2541 # We assume that a given config-lang.in will list all the language
2542 # front ends it requires, even if some are required indirectly.
2543 for lang in ${srcdir}/*/config-lang.in ..
2548 # The odd quoting in the next line works around
2549 # an apparent bug in bash 1.12 on linux.
2551 ${srcdir}/[*]/config-lang.in)
2554 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2555 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2556 for other in $this_lang_requires
2558 case ,${enable_languages}, in
2564 enable_languages="$enable_languages,$other"
2573 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2576 for lang in ${srcdir}/*/config-lang.in ..
2580 # The odd quoting in the next line works around
2581 # an apparent bug in bash 1.12 on linux.
2583 ${srcdir}/[*]/config-lang.in) ;;
2585 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2586 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2587 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2588 if test "x$lang_alias" = x
2590 echo "$lang doesn't set \$language." 1>&2
2593 case ${build_by_default},${enable_languages}, in
2594 *,$lang_alias,*) add_this_lang=yes ;;
2595 no,*) add_this_lang=no ;;
2596 *,all,*) add_this_lang=yes ;;
2597 *) add_this_lang=no ;;
2599 found_languages="${found_languages} ${lang_alias}"
2600 if test x"${add_this_lang}" = xyes; then
2602 ${srcdir}/ada/config-lang.in)
2603 if test x$have_gnat = xyes ; then
2604 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2608 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2618 for expected_language in ${expected_languages} ..
2620 if test "${expected_language}" != ..; then
2621 missing_language="${expected_language}"
2622 if test "${expected_language}" = "c" \
2623 || test "${expected_language}" = "all"; then
2626 for found_language in ${found_languages} ..
2628 if test "${found_language}" != ..; then
2629 if test "${expected_language}" = "${found_language}"; then
2634 if test "x${missing_language}" != x; then
2635 missing_languages="${missing_languages} ${missing_language}"
2640 if test "x$missing_languages" != x; then
2642 The following requested languages were not found:${missing_languages}
2643 The following languages were available: c${found_languages}])
2646 # Make gthr-default.h if we have a thread file.
2648 if test $thread_file != single; then
2649 rm -f gthr-default.h
2650 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2651 gthread_flags=-DHAVE_GTHR_DEFAULT
2653 AC_SUBST(gthread_flags)
2655 # Find out what GC implementation we want, or may, use.
2657 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2664 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2669 echo "Using $GGC for garbage collection."
2671 # Use the system's zlib library.
2673 zlibinc="-I\$(srcdir)/../zlib"
2674 AC_ARG_WITH(system-zlib,
2675 [ --with-system-zlib use installed libz],
2682 dnl Very limited version of automake's enable-maintainer-mode
2684 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2685 dnl maintainer-mode is disabled by default
2686 AC_ARG_ENABLE(maintainer-mode,
2687 [ --enable-maintainer-mode
2688 enable make rules and dependencies not useful
2689 (and sometimes confusing) to the casual installer],
2690 maintainer_mode=$enableval,
2693 AC_MSG_RESULT($maintainer_mode)
2695 if test "$maintainer_mode" = "yes"; then
2702 # Make empty files to contain the specs and options for each language.
2703 # Then add #include lines to for a compiler that has specs and/or options.
2708 for subdir in . $subdirs
2710 if test -f $srcdir/$subdir/lang.opt; then
2711 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2713 if test -f $srcdir/$subdir/lang-specs.h; then
2714 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2716 if test -f $srcdir/$subdir/$subdir-tree.def; then
2717 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2721 # These (without "all_") are set in each config-lang.in.
2722 # `language' must be a single word so is spelled singularly.
2727 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2728 # List of language makefile fragments.
2730 # Files for gengtype
2731 all_gtfiles="$target_gtfiles"
2732 # Files for gengtype with language
2733 all_gtfiles_files_langs=
2734 all_gtfiles_files_files=
2736 # Add the language fragments.
2737 # Languages are added via two mechanisms. Some information must be
2738 # recorded in makefile variables, these are defined in config-lang.in.
2739 # We accumulate them and plug them into the main Makefile.
2740 # The other mechanism is a set of hooks for each of the main targets
2741 # like `clean', `install', etc.
2743 language_fragments="Make-lang"
2744 language_hooks="Make-hooks"
2746 for s in .. $subdirs
2756 . ${srcdir}/$s/config-lang.in
2757 if test "x$language" = x
2759 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2762 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2763 if test -f ${srcdir}/$s/Makefile.in
2764 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2766 all_languages="$all_languages $language"
2767 if test "x$boot_language" = xyes
2769 all_boot_languages="$all_boot_languages $language"
2771 all_compilers="$all_compilers $compilers"
2772 all_stagestuff="$all_stagestuff $stagestuff"
2773 all_outputs="$all_outputs $outputs"
2774 all_gtfiles="$all_gtfiles $gtfiles"
2775 for f in .. $gtfiles
2779 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2780 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2786 # Pick up gtfiles for c
2789 . ${srcdir}/c-config-lang.in
2790 all_gtfiles="$all_gtfiles $gtfiles"
2791 for f in .. $gtfiles
2795 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2796 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2801 for language in .. $all_languages
2803 if test $language != ".."
2805 check_languages="$check_languages check-$language"
2809 # Since we can't use `::' targets, we link each language in
2810 # with a set of hooks, reached indirectly via lang.${target}.
2814 target_list="all.build all.cross start.encap rest.encap tags \
2815 info dvi generated-manpages \
2816 install-normal install-common install-info install-man \
2818 mostlyclean clean distclean extraclean maintainer-clean \
2819 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2820 for t in $target_list
2823 for lang in .. $all_languages
2825 if test $lang != ".."; then
2829 echo "lang.$t: $x" >> Make-hooks
2834 echo "dir ." > .gdbinit
2835 echo "dir ${srcdir}" >> .gdbinit
2836 if test x$gdb_needs_out_file_path = xyes
2838 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2840 if test "x$subdirs" != x; then
2843 echo "dir ${srcdir}/$s" >> .gdbinit
2846 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2848 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2849 # absolute path for gcc_tooldir based on inserting the number of up-directory
2850 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2851 # $(libsubdir)/@(unlibsubdir) based path.
2852 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2853 # make and thus we'd get different behavior depending on where we built the
2855 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2856 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2858 changequote(<<, >>)dnl
2859 # An explanation of the sed strings:
2860 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2861 # -e 's|/$||' match a trailing forward slash and eliminates it
2862 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2863 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2865 # (*) Note this pattern overwrites the first character of the string
2866 # with a forward slash if one is not already present. This is not a
2867 # problem because the exact names of the sub-directories concerned is
2868 # unimportant, just the number of them matters.
2870 # The practical upshot of these patterns is like this:
2872 # prefix exec_prefix result
2873 # ------ ----------- ------
2875 # /foo/ /foo/bar ../
2876 # /foo /foo/bar/ ../
2877 # /foo/ /foo/bar/ ../
2878 # /foo /foo/bar/ugg ../../
2881 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2882 changequote([, ])dnl
2884 AC_SUBST(gcc_tooldir)
2887 # Find a directory in which to install a shared libgcc.
2889 AC_ARG_ENABLE(version-specific-runtime-libs,
2890 [ --enable-version-specific-runtime-libs
2891 specify that runtime libraries should be
2892 installed in a compiler-specific directory])
2894 AC_ARG_WITH(slibdir,
2895 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2896 slibdir="$with_slibdir",
2897 if test "${enable_version_specific_runtime_libs+set}" = set; then
2898 slibdir='$(libsubdir)'
2899 elif test "$host" != "$target"; then
2900 slibdir='$(build_tooldir)/lib'
2906 objdir=`${PWDCMD-pwd}`
2909 # Process the language and host/target makefile fragments.
2910 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2912 # Substitute configuration variables
2915 AC_SUBST(all_boot_languages)
2916 AC_SUBST(all_compilers)
2917 AC_SUBST(all_gtfiles)
2918 AC_SUBST(all_gtfiles_files_langs)
2919 AC_SUBST(all_gtfiles_files_files)
2920 AC_SUBST(all_lang_makefiles)
2921 AC_SUBST(all_languages)
2922 AC_SUBST(all_stagestuff)
2923 AC_SUBST(build_exeext)
2924 AC_SUBST(build_install_headers_dir)
2925 AC_SUBST(build_xm_file_list)
2926 AC_SUBST(build_xm_include_list)
2927 AC_SUBST(build_xm_defines)
2928 AC_SUBST(check_languages)
2929 AC_SUBST(cc_set_by_configure)
2930 AC_SUBST(quoted_cc_set_by_configure)
2931 AC_SUBST(cpp_install_dir)
2932 AC_SUBST(dep_host_xmake_file)
2933 AC_SUBST(dep_tmake_file)
2934 AC_SUBST(extra_headers_list)
2935 AC_SUBST(extra_objs)
2936 AC_SUBST(extra_parts)
2937 AC_SUBST(extra_passes)
2938 AC_SUBST(extra_programs)
2939 AC_SUBST(float_h_file)
2940 AC_SUBST(gcc_config_arguments)
2941 AC_SUBST(gcc_gxx_include_dir)
2942 AC_SUBST(libstdcxx_incdir)
2943 AC_SUBST(gcc_version)
2944 AC_SUBST(gcc_version_full)
2945 AC_SUBST(gcc_version_trigger)
2946 AC_SUBST(host_exeext)
2947 AC_SUBST(host_extra_gcc_objs)
2948 AC_SUBST(host_xm_file_list)
2949 AC_SUBST(host_xm_include_list)
2950 AC_SUBST(host_xm_defines)
2951 AC_SUBST(out_host_hook_obj)
2953 AC_SUBST(lang_opt_files)
2954 AC_SUBST(lang_specs_files)
2955 AC_SUBST(lang_tree_files)
2956 AC_SUBST(local_prefix)
2958 AC_SUBST(objc_boehm_gc)
2960 AC_SUBST(out_object_file)
2961 AC_SUBST(stage_prefix_set_by_configure)
2962 AC_SUBST(quoted_stage_prefix_set_by_configure)
2963 AC_SUBST(symbolic_link)
2964 AC_SUBST(thread_file)
2965 AC_SUBST(tm_file_list)
2966 AC_SUBST(tm_include_list)
2967 AC_SUBST(tm_defines)
2968 AC_SUBST(tm_p_file_list)
2969 AC_SUBST(tm_p_include_list)
2970 AC_SUBST(xm_file_list)
2971 AC_SUBST(xm_include_list)
2972 AC_SUBST(xm_defines)
2973 AC_SUBST(target_alias)
2974 AC_SUBST(c_target_objs)
2975 AC_SUBST(cxx_target_objs)
2976 AC_SUBST(target_cpu_default)
2978 AC_SUBST_FILE(target_overrides)
2979 AC_SUBST_FILE(host_overrides)
2980 AC_SUBST_FILE(language_fragments)
2981 AC_SUBST_FILE(language_hooks)
2983 # Echo that links are built
2984 if test x$host = x$target
2992 if test x$host != x$build
2994 str3=" on a $build system"
2997 if test "x$str2" != x || test "x$str3" != x
3002 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3004 if test "x$str2" != x || test "x$str3" != x
3006 echo " ${str2}${str3}." 1>&2
3009 # Configure the subdirectories
3010 # AC_CONFIG_SUBDIRS($subdirs)
3012 # Create the Makefile
3013 # and configure language subdirectories
3014 AC_OUTPUT($all_outputs,
3016 case x$CONFIG_HEADERS in
3017 xauto-host.h:config.in)
3020 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3021 # bootstrapping and the installation procedure can still use
3022 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3023 # FLAGS_TO_PASS has been modified to solve the problem there.
3024 # This is virtually a duplicate of what happens in configure.lang; we do
3025 # an extra check to make sure this only happens if ln -s can be used.
3026 if test "$symbolic_link" = "ln -s"; then
3027 for d in .. ${subdirs} fixinc ; do
3028 if test $d != ..; then
3029 STARTDIR=`${PWDCMD-pwd}`
3031 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3034 $symbolic_link ../$t $t 2>/dev/null
3042 symbolic_link='$symbolic_link'