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 noncanonical target name, for directory use.
36 _GCC_TOPLEV_NONCANONICAL_TARGET
38 # Determine the target- and build-specific subdirectories
41 # Set program_transform_name
44 # Check for bogus environment variables.
45 # Test if LIBRARY_PATH contains the notation for the current directory
46 # since this would lead to problems installing/building glibc.
47 # LIBRARY_PATH contains the current directory if one of the following
49 # - one of the terminals (":" and ";") is the first or last sign
50 # - two terminals occur directly after each other
51 # - the path contains an element with a dot in it
52 AC_MSG_CHECKING(LIBRARY_PATH variable)
54 case ${LIBRARY_PATH} in
55 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
56 library_path_setting="contains current directory"
59 library_path_setting="ok"
63 AC_MSG_RESULT($library_path_setting)
64 if test "$library_path_setting" != "ok"; then
66 *** LIBRARY_PATH shouldn't contain the current directory when
67 *** building gcc. Please change the environment variable
68 *** and run configure again.])
71 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
72 # since this would lead to problems installing/building glibc.
73 # GCC_EXEC_PREFIX contains the current directory if one of the following
75 # - one of the terminals (":" and ";") is the first or last sign
76 # - two terminals occur directly after each other
77 # - the path contains an element with a dot in it
78 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
80 case ${GCC_EXEC_PREFIX} in
81 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
82 gcc_exec_prefix_setting="contains current directory"
85 gcc_exec_prefix_setting="ok"
89 AC_MSG_RESULT($gcc_exec_prefix_setting)
90 if test "$gcc_exec_prefix_setting" != "ok"; then
92 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
93 *** building gcc. Please change the environment variable
94 *** and run configure again.])
101 # Specify the local prefix
103 AC_ARG_WITH(local-prefix,
104 [ --with-local-prefix=DIR specifies directory to put local include],
105 [case "${withval}" in
106 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
108 *) local_prefix=$with_local_prefix ;;
111 # Default local prefix if it is empty
112 if test x$local_prefix = x; then
113 local_prefix=/usr/local
116 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
117 # passed in by the toplevel make and thus we'd get different behavior
118 # depending on where we built the sources.
120 # Specify the g++ header file directory
121 AC_ARG_WITH(gxx-include-dir,
122 [ --with-gxx-include-dir=DIR
123 specifies directory to put g++ header files],
124 [case "${withval}" in
125 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
127 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
130 if test x${gcc_gxx_include_dir} = x; then
131 if test x${enable_version_specific_runtime_libs} = xyes; then
132 gcc_gxx_include_dir='${libsubdir}/include/c++'
134 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
135 changequote(<<, >>)dnl
136 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
141 AC_ARG_WITH(cpp_install_dir,
142 [ --with-cpp-install-dir=DIR
143 install the user visible C preprocessor in DIR
144 (relative to PREFIX) as well as PREFIX/bin],
145 [if test x$withval = xyes; then
146 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
147 elif test x$withval != xno; then
148 cpp_install_dir=$withval
151 # We would like to our source tree to be readonly. However when releases or
152 # pre-releases are generated, the flex/bison generated files as well as the
153 # various formats of manuals need to be included along with the rest of the
154 # sources. Therefore we have --enable-generated-files-in-srcdir to do
157 AC_ARG_ENABLE(generated-files-in-srcdir,
158 [ --enable-generated-files-in-srcdir Put generated files in source dir],
159 [case ${enableval} in
160 no) parsedir='$(objdir)'; docobjdir='$(objdir)/doc';;
161 *) parsedir='$(srcdir)'; docobjdir='$(srcdir)/doc';;
163 [parsedir='$(objdir)'; docobjdir='$(objdir)/doc';])
165 # -------------------
166 # Find default linker
167 # -------------------
171 [ --with-gnu-ld arrange to work with GNU ld.],
172 gnu_ld_flag="$with_gnu_ld",
175 # With pre-defined ld
177 [ --with-ld arrange to use the specified ld (full pathname)],
178 DEFAULT_LINKER="$with_ld")
179 if test x"${DEFAULT_LINKER+set}" = x"set"; then
180 if test ! -x "$DEFAULT_LINKER"; then
181 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
182 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
185 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
186 [Define to enable the use of a default linker.])
189 AC_MSG_CHECKING([whether a default linker was specified])
190 if test x"${DEFAULT_LINKER+set}" = x"set"; then
191 if test x"$gnu_ld_flag" = x"no"; then
192 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
194 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
200 # ----------------------
201 # Find default assembler
202 # ----------------------
206 [ --with-gnu-as arrange to work with GNU as],
207 gas_flag="$with_gnu_as",
211 [ --with-as arrange to use the specified as (full pathname)],
212 DEFAULT_ASSEMBLER="$with_as")
213 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
214 if test ! -x "$DEFAULT_ASSEMBLER"; then
215 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
216 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
219 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
220 [Define to enable the use of a default assembler.])
223 AC_MSG_CHECKING([whether a default assembler was specified])
224 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
225 if test x"$gas_flag" = x"no"; then
226 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
228 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
238 # Find the native compiler
241 # autoconf is lame and doesn't give us any substitution variable for this.
242 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
243 NO_MINUS_C_MINUS_O=yes
245 OUTPUT_OPTION='-o $@'
247 AC_SUBST(NO_MINUS_C_MINUS_O)
248 AC_SUBST(OUTPUT_OPTION)
250 # -------------------------
251 # Check C compiler features
252 # -------------------------
254 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
255 ac_cv_prog_cc_no_long_long,
256 [save_CFLAGS="$CFLAGS"
257 CFLAGS="-Wno-long-long"
258 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
259 ac_cv_prog_cc_no_long_long=no)
260 CFLAGS="$save_CFLAGS"])
268 # sizeof(char) is 1 by definition.
269 AC_COMPILE_CHECK_SIZEOF(void *)
270 AC_COMPILE_CHECK_SIZEOF(short)
271 AC_COMPILE_CHECK_SIZEOF(int)
272 AC_COMPILE_CHECK_SIZEOF(long)
273 if test $ac_cv_c_long_long = yes; then
274 AC_COMPILE_CHECK_SIZEOF(long long)
276 if test $ac_cv_c___int64 = yes; then
277 AC_COMPILE_CHECK_SIZEOF(__int64)
284 # See if GNAT has been installed
287 if test x$have_gnat != xno ; then
288 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
289 ac_cv_prog_adac_no_long_long,
290 [cat >conftest.adb <<EOF
291 procedure conftest is begin null; end conftest;
293 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
294 ac_cv_prog_adac_no_long_long=yes
296 ac_cv_prog_adac_no_long_long=no
300 ac_cv_prog_adac_no_long_long=yes
303 # ---------------------
304 # Warnings and checking
305 # ---------------------
308 if test $ac_cv_prog_cc_no_long_long = yes && \
309 test $ac_cv_prog_adac_no_long_long = yes ; then
310 strict1_warn="-pedantic -Wno-long-long"
312 AC_SUBST(strict1_warn)
314 # If the native compiler is GCC, we can enable warnings even in stage1.
315 # That's useful for people building cross-compilers, or just running a
318 if test "x$GCC" = "xyes"; then
319 warn_cflags='$(GCC_WARN_CFLAGS)'
321 AC_SUBST(warn_cflags)
323 # Enable -Werror in bootstrap stage2 and later.
324 # Change the default to "no" on release branches.
325 AC_ARG_ENABLE(werror,
326 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
328 if test x$enable_werror = xyes ; then
333 # Enable expensive internal checks
334 AC_ARG_ENABLE(checking,
335 [ --enable-checking[=LIST]
336 enable expensive run-time checks. With LIST,
337 enable only specific categories of checks.
338 Categories are: misc,tree,rtl,rtlflag,gc,gcac,fold;
339 default is misc,tree,gc,rtlflag],
345 ac_gc_always_collect=
347 case "${enableval}" in
348 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
349 ac_rtlflag_checking=1 ;;
351 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
352 set fnord $enableval; shift
357 misc) ac_checking=1 ;;
358 tree) ac_tree_checking=1 ;;
359 rtlflag) ac_rtlflag_checking=1 ;;
360 rtl) ac_rtl_checking=1 ;;
361 gc) ac_gc_checking=1 ;;
362 gcac) ac_gc_always_collect=1 ;;
363 fold) ac_fold_checking=1 ;;
364 valgrind) ac_checking_valgrind=1 ;;
365 *) AC_MSG_ERROR(unknown check category $check) ;;
371 # Enable some checks by default for development versions of GCC
372 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
374 if test x$ac_checking != x ; then
375 AC_DEFINE(ENABLE_CHECKING, 1,
376 [Define if you want more run-time sanity checks. This one gets a grab
377 bag of miscellaneous but relatively cheap checks.])
378 nocommon_flag=-fno-common
380 AC_SUBST(nocommon_flag)
381 if test x$ac_tree_checking != x ; then
382 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
383 [Define if you want all operations on trees (the basic data
384 structure of the front ends) to be checked for dynamic type safety
385 at runtime. This is moderately expensive.])
387 if test x$ac_rtl_checking != x ; then
388 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
389 [Define if you want all operations on RTL (the basic data structure
390 of the optimizer and back end) to be checked for dynamic type safety
391 at runtime. This is quite expensive.])
393 if test x$ac_rtlflag_checking != x ; then
394 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
395 [Define if you want RTL flag accesses to be checked against the RTL
396 codes that are supported for each access macro. This is relatively
399 if test x$ac_gc_checking != x ; then
400 AC_DEFINE(ENABLE_GC_CHECKING, 1,
401 [Define if you want the garbage collector to do object poisoning and
402 other memory allocation checks. This is quite expensive.])
404 if test x$ac_gc_always_collect != x ; then
405 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
406 [Define if you want the garbage collector to operate in maximally
407 paranoid mode, validating the entire heap and collecting garbage at
408 every opportunity. This is extremely expensive.])
410 if test x$ac_fold_checking != x ; then
411 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
412 [Define if you want fold checked that it never destructs its argument.
413 This is quite expensive.])
415 valgrind_path_defines=
417 if test x$ac_checking_valgrind != x ; then
418 # It is certainly possible that there's valgrind but no valgrind.h.
419 # GCC relies on making annotations so we must have both.
420 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
422 [#include <valgrind/memcheck.h>
423 #ifndef VALGRIND_DISCARD
424 #error VALGRIND_DISCARD not defined
426 [gcc_cv_header_valgrind_memcheck_h=yes],
427 [gcc_cv_header_valgrind_memcheck_h=no])
428 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
429 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
431 [#include <memcheck.h>
432 #ifndef VALGRIND_DISCARD
433 #error VALGRIND_DISCARD not defined
435 [gcc_cv_header_memcheck_h=yes],
436 gcc_cv_header_memcheck_h=no)
437 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
438 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
439 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
440 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
441 if test "x$valgrind_path" = "x" \
442 || (test $have_valgrind_h = no \
443 && test $gcc_cv_header_memcheck_h = no \
444 && test $gcc_cv_header_valgrind_memcheck_h = no); then
445 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
447 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
448 valgrind_command="$valgrind_path -q"
449 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
450 [Define if you want to run subprograms and generated programs
451 through valgrind (a memory checker). This is extremely expensive.])
452 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
453 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
454 [Define if valgrind's valgrind/memcheck.h header is installed.])
456 if test $gcc_cv_header_memcheck_h = yes; then
457 AC_DEFINE(HAVE_MEMCHECK_H, 1,
458 [Define if valgrind's memcheck.h header is installed.])
461 AC_SUBST(valgrind_path_defines)
462 AC_SUBST(valgrind_command)
464 # Enable code coverage collection
465 AC_ARG_ENABLE(coverage,
466 [ --enable-coverage[=LEVEL]
467 enable compiler\'s code coverage collection.
468 Use to measure compiler performance and locate
469 unused parts of the compiler. With LEVEL, specify
470 optimization. Values are opt, noopt,
472 [case "${enableval}" in
474 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
477 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
480 AC_MSG_ERROR(unknown coverage setting $enableval)
484 AC_SUBST(coverage_flags)
486 # -------------------------------
487 # Miscenalleous configure options
488 # -------------------------------
492 [ --with-stabs arrange to use stabs instead of host debug format],
496 # Determine whether or not multilibs are enabled.
497 AC_ARG_ENABLE(multilib,
498 [ --enable-multilib enable library support for multiple ABIs],
499 [], [enable_multilib=yes])
500 AC_SUBST(enable_multilib)
502 # Enable __cxa_atexit for C++.
503 AC_ARG_ENABLE(__cxa_atexit,
504 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
508 # Pass with no value to take the default
509 # Pass with a value to specify a thread package
510 AC_ARG_ENABLE(threads,
511 [ --enable-threads enable thread usage for target GCC
512 --enable-threads=LIB use LIB thread package for target GCC],,
514 # Save in case it gets overwritten in config.gcc
515 enable_threads_flag=$enable_threads
517 AC_ARG_ENABLE(objc-gc,
518 [ --enable-objc-gc enable the use of Boehm's garbage collector with
519 the GNU Objective-C runtime],
520 if test x$enable_objc_gc = xno; then
528 [ --with-dwarf2 force the default debug format to be DWARF 2],
529 dwarf2="$with_dwarf2",
532 AC_ARG_ENABLE(shared,
533 [ --disable-shared don't provide a shared libgcc],
535 case $enable_shared in
539 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
540 for pkg in $enableval; do
541 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
548 ], [enable_shared=yes])
549 AC_SUBST(enable_shared)
552 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
554 case ${with_sysroot} in
555 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
556 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
559 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
560 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
562 if test "x$exec_prefix" = xNONE; then
563 if test "x$prefix" = xNONE; then
564 test_prefix=/usr/local
569 test_prefix=$exec_prefix
571 case ${TARGET_SYSTEM_ROOT} in
572 "${test_prefix}"|"${test_prefix}/"*|\
573 '${exec_prefix}'|'${exec_prefix}/'*)
574 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
575 TARGET_SYSTEM_ROOT_DEFINE="$t"
580 TARGET_SYSTEM_ROOT_DEFINE=
581 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
583 AC_SUBST(TARGET_SYSTEM_ROOT)
584 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
585 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
587 # Build with intermodule optimisations
588 AC_ARG_ENABLE(intermodule,
589 [ --enable-intermodule build the compiler in one step],
590 [case ${enable_intermodule} in
591 yes) onestep="-onestep";;
597 # -------------------------
598 # Checks for other programs
599 # -------------------------
603 # Find some useful tools
605 # We need awk to run opts.sh (to create options.c and options.h).
606 # Bail out if it's missing.
608 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
616 # See if cmp has --ignore-initial.
617 gcc_AC_PROG_CMP_IGNORE_INITIAL
619 # See if we have the mktemp command.
620 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
622 # Do we have a single-tree copy of texinfo?
623 if test -f $srcdir/../texinfo/Makefile.in; then
624 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
625 gcc_cv_prog_makeinfo_modern=yes
626 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
628 # See if makeinfo has been installed and is modern enough
629 # that we can use it.
630 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
631 [GNU texinfo.* \([0-9][0-9.]*\)],
635 if test $gcc_cv_prog_makeinfo_modern = no; then
637 *** Makeinfo is missing or too old.
638 *** Info documentation will not be built.])
641 BUILD_INFO=info AC_SUBST(BUILD_INFO)
644 # Is pod2man recent enough to regenerate manpages?
645 AC_MSG_CHECKING([for recent Pod::Man])
646 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
648 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
655 dnl Don't use AC_PROG_LEX; we insist on flex.
656 dnl LEXLIB is not useful in gcc.
657 if test -f $srcdir/../flex/skel.c; then
658 FLEX='$(objdir)/../flex/flex'
660 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
664 # The -L switch is so bison can find its skeleton file.
665 if test -f $srcdir/../bison/bison.simple; then
666 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
668 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
671 # --------------------
672 # Checks for C headers
673 # --------------------
675 AC_MSG_CHECKING(for GNU C library)
676 AC_CACHE_VAL(gcc_cv_glibc,
678 [#include <features.h>],[
679 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
680 #error Not a GNU C library system
684 AC_MSG_RESULT($gcc_cv_glibc)
685 if test $gcc_cv_glibc = yes; then
686 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
691 gcc_AC_HEADER_STDBOOL
694 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
695 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
696 sys/resource.h sys/param.h sys/times.h sys/stat.h \
697 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
699 # Check for thread headers.
700 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
701 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
703 # These tests can't be done till we know if we have limits.h.
711 # Stage specific cflags for build.
717 stage1_cflags="-Wa,-J"
723 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
724 # sources; use -no-cpp-precomp to get to GNU cpp.
725 # Apple's GCC has bugs in designated initializer handling, so disable
727 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
730 AC_SUBST(stage1_cflags)
732 # These libraries may be used by collect2.
733 # We may need a special search path to get them linked.
734 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
736 for libs in '' -lld -lmld \
737 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
738 '-L/usr/lib/cmplrs/cc3.11 -lmld'
741 AC_TRY_LINK_FUNC(ldopen,
742 [gcc_cv_collect2_libs="$libs"; break])
745 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
746 case $gcc_cv_collect2_libs in
748 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
750 AC_SUBST(COLLECT2_LIBS)
752 # When building Ada code on Alpha, we need exc_resume which is usually in
753 # -lexc. So test for it.
756 AC_SEARCH_LIBS(exc_resume, exc)
759 AC_SUBST(GNAT_LIBEXC)
761 # Some systems put ldexp and frexp in libm instead of libc; assume
762 # they're both in the same place. jcf-dump needs them.
765 AC_SEARCH_LIBS(ldexp, m)
770 # Use <inttypes.h> only if it exists,
771 # doesn't clash with <sys/types.h>, and declares intmax_t.
772 AC_MSG_CHECKING(for inttypes.h)
773 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
775 [#include <sys/types.h>
776 #include <inttypes.h>],
778 [gcc_cv_header_inttypes_h=yes],
779 gcc_cv_header_inttypes_h=no)])
780 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
781 if test $gcc_cv_header_inttypes_h = yes; then
782 AC_DEFINE(HAVE_INTTYPES_H, 1,
783 [Define if you have a working <inttypes.h> header file.])
786 dnl Disabled until we have a complete test for buggy enum bitfields.
787 dnl gcc_AC_C_ENUM_BF_UNSIGNED
789 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
790 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
791 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
792 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
795 if test x$ac_cv_func_mbstowcs = xyes; then
796 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
797 [ AC_TRY_RUN([#include <stdlib.h>
803 gcc_cv_func_mbstowcs_works=yes,
804 gcc_cv_func_mbstowcs_works=no,
805 gcc_cv_func_mbstowcs_works=yes)])
806 if test x$gcc_cv_func_mbstowcs_works = xyes; then
807 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
808 [Define this macro if mbstowcs does not crash when its
809 first argument is NULL.])
813 gcc_AC_CHECK_TYPE(ssize_t, int)
815 # Try to determine the array type of the second argument of getgroups
816 # for the target system (int or gid_t).
818 if test "${target}" = "${build}"; then
819 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
822 # This condition may need some tweaking. It should include all
823 # targets where the array type of the second argument of getgroups
824 # is int and the type of gid_t is not equivalent to int.
825 *-*-sunos* | *-*-ultrix*)
826 TARGET_GETGROUPS_T=int
829 TARGET_GETGROUPS_T=gid_t
833 AC_SUBST(TARGET_GETGROUPS_T)
835 gcc_AC_FUNC_PRINTF_PTR
836 gcc_AC_FUNC_MMAP_BLACKLIST
840 # Under VMS, vfork works very differently than on Unix. The standard test
841 # won't work, and it isn't easily adaptable. It makes more sense to
843 ac_cv_func_vfork_works=yes
849 # Until we have in-tree GNU iconv:
851 AC_SUBST(LIBICONV_DEP)
855 # We will need to find libiberty.h and ansidecl.h
856 saved_CFLAGS="$CFLAGS"
857 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
858 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
859 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
860 fprintf_unlocked strstr errno snprintf vasprintf \
861 malloc realloc calloc free basename getopt clock, , ,[
862 #include "ansidecl.h"
863 #include "system.h"])
865 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
866 #include "ansidecl.h"
868 #ifdef HAVE_SYS_RESOURCE_H
869 #include <sys/resource.h>
874 #include "ansidecl.h"
876 #ifdef HAVE_SYS_RESOURCE_H
877 #include <sys/resource.h>
879 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
880 [Define to \`long' if <sys/resource.h> doesn't define.])])
882 gcc_AC_CHECK_DECLS(ldgetname, , ,[
883 #include "ansidecl.h"
890 gcc_AC_CHECK_DECLS(times, , ,[
891 #include "ansidecl.h"
893 #ifdef HAVE_SYS_TIMES_H
894 #include <sys/times.h>
898 # More time-related stuff.
899 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
901 #include "ansidecl.h"
903 #ifdef HAVE_SYS_TIMES_H
904 #include <sys/times.h>
906 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
907 if test $ac_cv_struct_tms = yes; then
908 AC_DEFINE(HAVE_STRUCT_TMS, 1,
909 [Define if <sys/times.h> defines struct tms.])
912 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
913 # revisit after autoconf 2.50.
914 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
916 #include "ansidecl.h"
918 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
919 if test $gcc_cv_type_clock_t = yes; then
920 AC_DEFINE(HAVE_CLOCK_T, 1,
921 [Define if <time.h> defines clock_t.])
924 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
926 #include "ansidecl.h"
929 [if ((uchar *)0) return 0;
930 if (sizeof(uchar)) return 0;],
931 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
932 if test $ac_cv_type_uchar = yes; then
933 AC_DEFINE(HAVE_UCHAR, 1,
934 [Define if <sys/types.h> defines \`uchar'.])
937 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
938 CFLAGS="$saved_CFLAGS"
940 gcc_AC_INITFINI_ARRAY
942 # mkdir takes a single argument on some systems.
943 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
951 # With Setjmp/Longjmp based exception handling.
952 AC_ARG_ENABLE(sjlj-exceptions,
953 [ --enable-sjlj-exceptions
954 arrange to use setjmp/longjmp exception handling],
955 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
956 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
957 [Define 0/1 to force the choice for exception handling model.])])
959 if test x$host = x$target; then
960 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
962 use_libunwind_default=no
964 # Use libunwind based exception handling.
965 AC_ARG_ENABLE(libunwind-exceptions,
966 [ --enable-libunwind-exceptions force use libunwind for exceptions],
967 use_libunwind_exceptions=$enableval,
968 use_libunwind_exceptions=$use_libunwind_default)
969 if test x"$use_libunwind_exceptions" = xyes; then
970 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
971 [Define if gcc should use -lunwind.])
974 # --------------------------------------------------------
975 # Build, host, and target specific configuration fragments
976 # --------------------------------------------------------
978 # Collect build-machine-specific information.
979 . ${srcdir}/config.build
981 # Collect host-machine-specific information.
982 . ${srcdir}/config.host
986 # Collect target-machine-specific information.
987 . ${srcdir}/config.gcc
989 extra_objs="${host_extra_objs} ${extra_objs}"
991 # Default the target-machine variables that were not explicitly set.
992 if test x"$tm_file" = x
993 then tm_file=$cpu_type/$cpu_type.h; fi
995 if test x"$extra_headers" = x
996 then extra_headers=; fi
998 if test x$md_file = x
999 then md_file=$cpu_type/$cpu_type.md; fi
1001 if test x$out_file = x
1002 then out_file=$cpu_type/$cpu_type.c; fi
1004 if test x"$tmake_file" = x
1005 then tmake_file=$cpu_type/t-$cpu_type
1008 if test x"$dwarf2" = xyes
1009 then tm_file="$tm_file tm-dwarf2.h"
1012 # Say what files are being used for the output code and MD file.
1013 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1014 echo "Using \`$srcdir/config/$md_file' as machine description file."
1016 # If any of the xm_file variables contain nonexistent files, warn
1017 # about them and drop them.
1020 for x in $build_xm_file; do
1021 if test -f $srcdir/config/$x
1023 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1029 for x in $host_xm_file; do
1030 if test -f $srcdir/config/$x
1032 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1038 for x in $xm_file; do
1039 if test -f $srcdir/config/$x
1041 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1047 for f in $tm_file; do
1050 if test $count = ax; then
1051 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1053 echo "Using the following target machine macro files:"
1054 for f in $tm_file; do
1055 echo " $srcdir/config/$f"
1059 if test x$need_64bit_hwint = xyes; then
1060 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1061 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1065 for f in $host_xm_file; do
1068 if test $count = a; then
1070 elif test $count = ax; then
1071 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1073 echo "Using the following host machine macro files:"
1074 for f in $host_xm_file; do
1075 echo " $srcdir/config/$f"
1078 echo "Using ${out_host_hook_obj} for host machine hooks."
1080 if test "$host_xm_file" != "$build_xm_file"; then
1082 for f in $build_xm_file; do
1085 if test $count = a; then
1087 elif test $count = ax; then
1088 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1090 echo "Using the following build machine macro files:"
1091 for f in $build_xm_file; do
1092 echo " $srcdir/config/$f"
1097 # Check if a valid thread package
1098 case ${enable_threads_flag} in
1101 target_thread_file='single'
1105 target_thread_file='single'
1107 aix | dce | gnat | irix | posix | rtems | \
1108 single | solaris | vxworks | win32 )
1109 target_thread_file=${enable_threads_flag}
1112 echo "${enable_threads_flag} is an unknown thread package" 1>&2
1117 if test x${thread_file} = x; then
1118 # No thread file set by target-specific clauses in config.gcc,
1119 # so use file chosen by default logic above
1120 thread_file=${target_thread_file}
1123 if test x$enable___cxa_atexit = xyes || \
1124 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1125 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1126 [Define if you want to use __cxa_atexit, rather than atexit, to
1127 register C++ destructors for local statics and global objects.
1128 This is essential for fully standards-compliant handling of
1129 destructors, but requires __cxa_atexit in libc.])
1132 # Look for a file containing extra machine modes.
1133 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1134 extra_modes_file='$(srcdir)'/config/${extra_modes}
1135 AC_SUBST(extra_modes_file)
1136 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1137 [Define to the name of a file containing a list of extra machine modes
1138 for this architecture.])
1141 # auto-host.h is the file containing items generated by autoconf and is
1142 # the first file included by config.h.
1143 # If host=build, it is correct to have bconfig include auto-host.h
1144 # as well. If host!=build, we are in error and need to do more
1145 # work to find out the build config parameters.
1146 if test x$host = x$build
1148 build_auto=auto-host.h
1151 # We create a subdir, then run autoconf in the subdir.
1152 # To prevent recursion we set host and build for the new
1153 # invocation of configure to the build for this invocation
1160 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1161 *) realsrcdir=../${srcdir};;
1163 saved_CFLAGS="${CFLAGS}"
1164 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1165 ${realsrcdir}/configure \
1166 --target=$target_alias --host=$build_alias --build=$build_alias
1167 CFLAGS="${saved_CFLAGS}"
1169 # We just finished tests for the build machine, so rename
1170 # the file auto-build.h in the gcc directory.
1171 mv auto-host.h ../auto-build.h
1174 build_auto=auto-build.h
1175 FORBUILD=../${build_subdir}
1179 tm_file="${tm_file} defaults.h"
1180 tm_p_file="${tm_p_file} tm-preds.h"
1181 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1182 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1183 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1184 # put this back in temporarily.
1185 xm_file="ansidecl.h ${xm_file}"
1191 # Get the version trigger filename from the toplevel
1192 if test "${with_gcc_version_trigger+set}" = set; then
1193 gcc_version_trigger=$with_gcc_version_trigger
1195 gcc_version_trigger=${srcdir}/version.c
1198 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1199 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1201 # Compile in configure arguments.
1202 if test -f configargs.h ; then
1203 # Being re-configured.
1204 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1205 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1207 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1210 # Double all backslashes and backslash all quotes to turn
1211 # gcc_config_arguments into a C string.
1212 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1213 $gcc_config_arguments
1215 gcc_config_arguments_str=`cat conftest.out`
1218 cat > configargs.h <<EOF
1219 /* Generated automatically. */
1220 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1221 static const char thread_model[] = "$thread_file";
1223 static const struct {
1224 const char *name, *value;
1225 } configure_default_options[] = $configure_default_options;
1229 # Internationalization
1231 VERSION="$gcc_version"
1235 ZW_GNU_GETTEXT_SISTER_DIR
1237 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1238 # -liconv on the link line twice.
1239 case "$LIBINTL" in *$LIBICONV*)
1243 # Windows32 Registry support for specifying GCC installation paths.
1244 AC_ARG_ENABLE(win32-registry,
1245 [ --disable-win32-registry
1246 disable lookup of installation paths in the
1247 Registry on Windows hosts
1248 --enable-win32-registry enable registry lookup (default)
1249 --enable-win32-registry=KEY
1250 use KEY instead of GCC version as the last portion
1251 of the registry key],,)
1253 win32 | pe | cygwin* | mingw32* | uwin*)
1254 AC_MSG_CHECKING(whether windows registry support is requested)
1255 if test "x$enable_win32_registry" != xno; then
1256 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1257 [Define to 1 if installation paths should be looked up in Windows32
1258 Registry. Ignored on non windows32 hosts.])
1260 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1265 # Check if user specified a different registry key.
1266 case "x${enable_win32_registry}" in
1269 gcc_cv_win32_registry_key="$VERSION"
1272 # no registry lookup.
1273 gcc_cv_win32_registry_key=''
1276 # user-specified key.
1277 gcc_cv_win32_registry_key="$enable_win32_registry"
1281 if test "x$enable_win32_registry" != xno; then
1282 AC_MSG_CHECKING(registry key on windows hosts)
1283 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1284 [Define to be the last portion of registry key on windows hosts.])
1285 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1290 # Get an absolute path to the GCC top-level source directory
1291 holddir=`${PWDCMD-pwd}`
1293 topdir=`${PWDCMD-pwd}`
1296 # Conditionalize the makefile for this host machine.
1298 for f in ${host_xmake_file}
1300 if test -f ${srcdir}/config/$f
1302 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1306 # Conditionalize the makefile for this target machine.
1308 for f in ${tmake_file}
1310 if test -f ${srcdir}/config/$f
1312 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1315 tmake_file="${tmake_file_}"
1317 symbolic_link='ln -s'
1319 # If the host doesn't support symlinks, modify CC in
1320 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1321 # Otherwise, we can use "CC=$(CC)".
1323 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1325 cc_set_by_configure="\$(CC)"
1326 quoted_cc_set_by_configure="\$(CC)"
1327 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1328 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1331 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1333 symbolic_link="cp -p"
1337 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1338 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1339 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1340 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1344 out_object_file=`basename $out_file .c`.o
1348 for f in $tm_file; do
1351 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1352 tm_include_list="${tm_include_list} $f"
1355 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1356 tm_include_list="${tm_include_list} config/$f"
1363 for f in $tm_p_file; do
1366 tm_p_file_list="${tm_p_file_list} $f"
1367 tm_p_include_list="${tm_p_include_list} $f"
1370 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1371 tm_p_include_list="${tm_p_include_list} config/$f"
1377 for f in $xm_file; do
1380 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1381 xm_include_list="${xm_include_list} $f"
1384 xm_file_list="${xm_file_list} $f"
1385 xm_include_list="${xm_include_list} $f"
1388 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1389 xm_include_list="${xm_include_list} config/$f"
1395 host_xm_include_list=
1396 for f in $host_xm_file; do
1399 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1400 host_xm_include_list="${host_xm_include_list} $f"
1403 host_xm_file_list="${host_xm_file_list} $f"
1404 host_xm_include_list="${host_xm_include_list} $f"
1407 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1408 host_xm_include_list="${host_xm_include_list} config/$f"
1414 for f in $build_xm_file; do
1417 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1418 build_xm_include_list="${build_xm_include_list} $f"
1420 auto-build.h | auto-host.h )
1421 build_xm_file_list="${build_xm_file_list} $f"
1422 build_xm_include_list="${build_xm_include_list} $f"
1425 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1426 build_xm_include_list="${build_xm_include_list} config/$f"
1431 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1432 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1433 CROSS= AC_SUBST(CROSS)
1434 ALL=all.internal AC_SUBST(ALL)
1435 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1436 if test x$host != x$target
1438 CROSS="-DCROSS_COMPILE"
1440 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1441 case "$host","$target" in
1442 # Darwin crosses can use the host system's libraries and headers,
1443 # because of the fat library support. Of course, it must be the
1444 # same version of Darwin on both sides. Allow the user to
1445 # just say --target=foo-darwin without a version number to mean
1446 # "the version on this system".
1447 *-*-darwin*,*-*-darwin*)
1448 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1449 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1450 if test $hostos = $targetos -o $targetos = darwin ; then
1452 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1457 i?86-*-*,x86_64-*-* \
1458 | powerpc*-*-*,powerpc64*-*-*)
1459 CROSS="$CROSS -DNATIVE_CROSS" ;;
1461 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1462 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1463 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1466 # If this is a cross-compiler that does not
1467 # have its own set of headers then define
1470 # If this is using newlib, without having the headers available now,
1471 # then define inhibit_libc in LIBGCC2_CFLAGS.
1472 # This prevents libgcc2 from containing any code which requires libc
1475 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1476 test x$with_newlib = xyes ; } &&
1477 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1478 inhibit_libc=-Dinhibit_libc
1480 AC_SUBST(inhibit_libc)
1482 # When building gcc with a cross-compiler, we need to adjust things so
1483 # that the generator programs are still built with the native compiler.
1484 # Also, we cannot run fixincludes or fix-header.
1486 # These are the normal (build=host) settings:
1487 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1488 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1489 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1490 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1492 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1494 # Possibly disable fixproto, on a per-target basis.
1495 case ${use_fixproto} in
1500 STMP_FIXPROTO=stmp-fixproto
1503 AC_SUBST(STMP_FIXPROTO)
1505 # And these apply if build != host, or we are generating coverage data
1506 if test x$build != x$host || test "x$coverage_flags" != x
1509 BUILD_PREFIX_1=build-
1510 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1512 if test "x$TARGET_SYSTEM_ROOT" = x; then
1518 # Expand extra_headers to include complete path.
1519 # This substitutes for lots of t-* files.
1521 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1522 for file in ${extra_headers} ; do
1523 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1526 # Add a definition of USE_COLLECT2 if system wants one.
1527 case $use_collect2 in
1528 no) use_collect2= ;;
1531 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1532 xm_defines="${xm_defines} USE_COLLECT2"
1536 # Identify the assembler which will work hand-in-glove with the newly
1537 # built GCC, so that we can examine its features. This is the assembler
1538 # which will be driven by the driver program.
1540 # If build != host, and we aren't building gas in-tree, we identify a
1541 # build->target assembler and hope that it will have the same features
1542 # as the host->target assembler we'll be using.
1543 AC_MSG_CHECKING(what assembler to use)
1546 gcc_cv_gas_major_version=
1547 gcc_cv_gas_minor_version=
1548 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1549 if test -x "$DEFAULT_ASSEMBLER"; then
1550 gcc_cv_as="$DEFAULT_ASSEMBLER"
1551 elif test -x "$AS"; then
1553 elif test -x as$host_exeext; then
1554 # Build using assembler in the current directory.
1555 gcc_cv_as=./as$host_exeext
1556 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1557 && test -f ../gas/Makefile; then
1558 # Single tree build which includes gas.
1560 _gcc_COMPUTE_GAS_VERSION
1561 rm -f as$host_exeext
1562 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1563 in_tree_gas_is_elf=no
1564 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1565 || (grep 'obj_format = multi' ../gas/Makefile \
1566 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1568 in_tree_gas_is_elf=yes
1572 if test "x$gcc_cv_as" = x; then
1573 # Search the same directories that the installed compiler will
1574 # search. Else we may find the wrong assembler and lose. If we
1575 # do not find a suitable assembler binary, then try the user's
1578 # Also note we have to check MD_EXEC_PREFIX before checking the
1579 # user's path. Unfortunately, there is no good way to get at the
1580 # value of MD_EXEC_PREFIX here. So we do a brute force search
1581 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1582 # to be fixed as part of the make/configure rewrite too.
1584 if test "x$exec_prefix" = xNONE; then
1585 if test "x$prefix" = xNONE; then
1586 test_prefix=/usr/local
1591 test_prefix=$exec_prefix
1594 # If the loop below does not find an assembler, then use whatever
1595 # one we can find in the users's path.
1597 if test "x$program_prefix" != xNONE; then
1598 gcc_cv_as=${program_prefix}as$host_exeext
1600 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1603 test_dirs="$test_prefix/lib/gcc-lib/$target_noncanonical/$gcc_version \
1604 $test_prefix/lib/gcc-lib/$target_noncanonical \
1605 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1606 /usr/lib/gcc/$target_noncanonical \
1607 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1608 $test_prefix/$target_noncanonical/bin"
1610 if test x$host = x$target; then
1611 test_dirs="$test_dirs \
1616 /bsd43/usr/lib/cmplrs/cc \
1617 /usr/cross64/usr/bin \
1618 /usr/lib/cmplrs/cc \
1619 /sysv/usr/lib/cmplrs/cc \
1620 /svr4/usr/lib/cmplrs/cc \
1624 for dir in $test_dirs; do
1625 if test -x $dir/as$host_exeext; then
1626 gcc_cv_as=$dir/as$host_exeext
1631 case $in_tree_gas in
1633 AC_MSG_RESULT("newly built gas")
1636 AC_MSG_RESULT($gcc_cv_as)
1640 # Identify the linker which will work hand-in-glove with the newly
1641 # built GCC, so that we can examine its features. This is the linker
1642 # which will be driven by the driver program.
1644 # If build != host, and we aren't building gas in-tree, we identify a
1645 # build->target linker and hope that it will have the same features
1646 # as the host->target linker we'll be using.
1647 AC_MSG_CHECKING(what linker to use)
1650 gcc_cv_gld_major_version=
1651 gcc_cv_gld_minor_version=
1652 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1653 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1654 if test -x "$DEFAULT_LINKER"; then
1655 gcc_cv_ld="$DEFAULT_LINKER"
1656 elif test -x "$LD"; then
1658 elif test -x collect-ld$host_exeext; then
1659 # Build using linker in the current directory.
1660 gcc_cv_ld=./collect-ld$host_exeext
1661 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1662 && test -f ../ld/Makefile; then
1663 # Single tree build which includes ld.
1665 in_tree_ld_is_elf=no
1666 if (grep 'EMUL = .*elf' ../ld/Makefile \
1667 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1668 in_tree_ld_is_elf=yes
1670 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
1673 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1675 if test x$gcc_cv_gld_version != x; then
1680 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1681 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1683 rm -f collect-ld$host_exeext
1684 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1688 if test "x$gcc_cv_ld" = x; then
1689 # Search the same directories that the installed compiler will
1690 # search. Else we may find the wrong linker and lose. If we
1691 # do not find a suitable linker binary, then try the user's
1694 # Also note we have to check MD_EXEC_PREFIX before checking the
1695 # user's path. Unfortunately, there is no good way to get at the
1696 # value of MD_EXEC_PREFIX here. So we do a brute force search
1697 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1698 # to be fixed as part of the make/configure rewrite too.
1700 if test "x$exec_prefix" = xNONE; then
1701 if test "x$prefix" = xNONE; then
1702 test_prefix=/usr/local
1707 test_prefix=$exec_prefix
1710 # If the loop below does not find an linker, then use whatever
1711 # one we can find in the users's path.
1713 if test "x$program_prefix" != xNONE; then
1714 gcc_cv_ld=${program_prefix}ld$host_exeext
1716 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1719 test_dirs="$test_prefix/lib/gcc-lib/$target_noncanonical/$gcc_version \
1720 $test_prefix/lib/gcc-lib/$target_noncanonical \
1721 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1722 /usr/lib/gcc/$target_noncanonical \
1723 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1724 $test_prefix/$target_noncanonical/bin"
1726 if test x$host = x$target; then
1727 test_dirs="$test_dirs \
1732 /bsd43/usr/lib/cmplrs/cc \
1733 /usr/cross64/usr/bin \
1734 /usr/lib/cmplrs/cc \
1735 /sysv/usr/lib/cmplrs/cc \
1736 /svr4/usr/lib/cmplrs/cc \
1740 for dir in $test_dirs; do
1741 if test -x $dir/ld$host_exeext; then
1742 gcc_cv_ld=$dir/ld$host_exeext
1749 AC_MSG_RESULT("newly built ld")
1752 AC_MSG_RESULT($gcc_cv_ld)
1756 # Figure out what nm we will be using.
1757 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1758 AC_MSG_CHECKING(what nm to use)
1760 if test -x nm$host_exeext; then
1761 gcc_cv_nm=./nm$host_exeext
1762 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1763 && test -f ../binutils/Makefile; then
1764 # Single tree build which includes binutils.
1766 gcc_cv_nm=./nm$host_exeext
1767 rm -f nm$host_exeext
1768 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1769 elif test "x$program_prefix" != xNONE; then
1770 gcc_cv_nm=${program_prefix}nm$host_exeext
1772 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1775 yes) AC_MSG_RESULT("newly built nm") ;;
1776 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1779 # Figure out what objdump we will be using.
1780 AC_MSG_CHECKING(what objdump to use)
1782 if test -x objdump$host_exeext; then
1783 gcc_cv_objdump=./objdump$host_exeext
1784 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1785 && test -f ../binutils/Makefile; then
1786 # Single tree build which includes binutils.
1788 gcc_cv_objdump=./objdump$host_exeext
1789 rm -f objdump$host_exeext
1790 $symbolic_link ../binutils/objdump$host_exeext \
1791 objdump$host_exeext 2>/dev/null
1792 elif test "x$program_prefix" != xNONE; then
1793 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1795 gcc_cv_objdump=`echo objdump | \
1796 sed ${program_transform_name}`$host_exeext
1798 case $in_tree_objdump in
1799 yes) AC_MSG_RESULT("newly built objdump") ;;
1800 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1803 # Figure out what assembler alignment features are present.
1804 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1808 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1809 [Define if your assembler supports .balign and .p2align.])])
1811 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1814 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1815 [Define if your assembler supports specifying the maximum number
1816 of bytes to skip when using the GAS .p2align command.])])
1818 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1820 [conftest_label1: .word 0
1822 conftest_label2: .word 0
1824 [if test x$gcc_cv_nm != x; then
1825 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1826 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1827 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1829 else gcc_cv_as_subsection_m1=yes
1831 rm -f conftest.nm1 conftest.nm2
1833 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1834 [Define if your assembler supports .subsection and .subsection -1 starts
1835 emitting at the beginning of your section.])])
1837 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1840 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1842 # .hidden needs to be supported in both the assembler and the linker,
1843 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1844 # This is irritatingly difficult to feature test for; we have to check the
1845 # date string after the version number. If we've got an in-tree
1846 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1848 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1849 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1854 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1855 [if test $in_tree_ld = yes ; then
1857 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1858 && test $in_tree_ld_is_elf = yes; then
1859 gcc_cv_ld_hidden=yes
1862 gcc_cv_ld_hidden=yes
1863 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1864 if echo "$ld_ver" | grep GNU > /dev/null; then
1866 ld_vers=`echo $ld_ver | sed -n \
1867 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1868 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1869 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1870 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1871 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1872 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1873 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1874 if test 0"$ld_date" -lt 20020404; then
1875 if test -n "$ld_date"; then
1876 # If there was date string, but was earlier than 2002-04-04, fail
1878 elif test -z "$ld_vers"; then
1879 # If there was no date string nor ld version number, something is wrong
1882 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1883 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1884 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1885 test -z "$ld_vers_patch" && ld_vers_patch=0
1886 if test "$ld_vers_major" -lt 2; then
1888 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1889 gcc_cv_ld_hidden="no"
1890 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1897 # non-GNU linkers don't seem to support .hidden yet
1901 libgcc_visibility=no
1902 AC_SUBST(libgcc_visibility)
1903 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1904 libgcc_visibility=yes
1905 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1906 [Define if your assembler and linker support .hidden.])
1909 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1910 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1918 [# GAS versions before 2.11 do not support uleb128,
1919 # despite appearing to.
1920 # ??? There exists an elf-specific test that will crash
1921 # the assembler. Perhaps it's better to figure out whether
1922 # arbitrary sections are supported and try the test.
1923 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
1924 if echo "$as_ver" | grep GNU > /dev/null; then
1926 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1927 as_major=`echo $as_ver | sed 's/\..*//'`
1928 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1930 if test $as_major -eq 2 && test $as_minor -lt 11
1932 else gcc_cv_as_leb128=yes
1935 [AC_DEFINE(HAVE_AS_LEB128, 1,
1936 [Define if your assembler supports .sleb128 and .uleb128.])])
1938 # GAS versions up to and including 2.11.0 may mis-optimize
1940 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1948 .section .eh_frame,"aw",@progbits
1950 .4byte .LECIE1-.LSCIE1
1964 .4byte .LEFDE1-.LASFDE1
1966 .4byte .LASFDE1-__FRAME_BEGIN__
1974 [ cat > conftest.lit <<EOF
1975 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1976 0010 01000000 12000000 18000000 00000000 ................
1977 0020 08000000 04080000 0044 .........D
1979 cat > conftest.big <<EOF
1980 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1981 0010 00000001 00000012 00000018 00000000 ................
1982 0020 00000008 04000000 0844 .........D
1984 # If the assembler didn't choke, and we can objdump,
1985 # and we got the correct data, then succeed.
1986 if test x$gcc_cv_objdump != x \
1987 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1988 | tail -3 > conftest.got \
1989 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1990 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1992 gcc_cv_as_eh_frame=yes
1993 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
1994 gcc_cv_as_eh_frame=buggy
1996 # Uh oh, what do we do now?
1997 gcc_cv_as_eh_frame=no
2000 if test $gcc_cv_as_eh_frame = buggy; then
2001 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2002 [Define if your assembler mis-optimizes .eh_frame data.])
2005 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2006 [elf,2,12,0], [--fatal-warnings],
2007 [.section .rodata.str, "aMS", @progbits, 1])
2008 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2009 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2010 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2012 # Thread-local storage - the check is heavily parametrized.
2021 .section ".tdata","awT",@progbits
2024 ldq $27,__tls_get_addr($29) !literal!1
2025 lda $16,foo($29) !tlsgd!1
2026 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2027 ldq $27,__tls_get_addr($29) !literal!2
2028 lda $16,foo($29) !tlsldm!2
2029 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2030 ldq $1,foo($29) !gotdtprel
2031 ldah $2,foo($29) !dtprelhi
2032 lda $3,foo($2) !dtprello
2033 lda $4,foo($29) !dtprel
2034 ldq $1,foo($29) !gottprel
2035 ldah $2,foo($29) !tprelhi
2036 lda $3,foo($2) !tprello
2037 lda $4,foo($29) !tprel'
2043 .section ".tdata","awT",@progbits
2047 leal foo@TLSGD(,%ebx,1), %eax
2048 leal foo@TLSLDM(%ebx), %eax
2049 leal foo@DTPOFF(%eax), %edx
2050 movl foo@GOTTPOFF(%ebx), %eax
2051 subl foo@GOTTPOFF(%ebx), %eax
2052 addl foo@GOTNTPOFF(%ebx), %eax
2053 movl foo@INDNTPOFF, %eax
2054 movl $foo@TPOFF, %eax
2055 subl $foo@TPOFF, %eax
2056 leal foo@NTPOFF(%ecx), %eax'
2062 .section ".tdata","awT",@progbits
2066 leaq foo@TLSGD(%rip), %rdi
2067 leaq foo@TLSLD(%rip), %rdi
2068 leaq foo@DTPOFF(%rax), %rdx
2069 movq foo@GOTTPOFF(%rip), %rax
2070 movq $foo@TPOFF, %rax'
2076 .section ".tdata","awT",@progbits
2079 addl r16 = @ltoff(@dtpmod(foo#)), gp
2080 addl r17 = @ltoff(@dtprel(foo#)), gp
2081 addl r18 = @ltoff(@tprel(foo#)), gp
2082 addl r19 = @dtprel(foo#), gp
2083 adds r21 = @dtprel(foo#), r13
2084 movl r23 = @dtprel(foo#)
2085 addl r20 = @tprel(foo#), gp
2086 adds r22 = @tprel(foo#), r13
2087 movl r24 = @tprel(foo#)'
2093 .section ".tdata","awT",@progbits
2101 addi 3,31,ld0@got@tlsgd
2103 addi 3,31,x1@got@tlsld
2106 addis 9,3,x2@dtprel@ha
2107 addi 9,9,x2@dtprel@l
2108 lwz 9,x3@got@tprel(31)
2111 addis 9,2,x2@tprel@ha
2112 addi 9,9,x2@tprel@l'
2119 .section ".tdata","awT",@progbits
2127 addi 3,2,ld0@got@tlsgd
2133 addi 3,2,x1@got@tlsld
2139 addis 9,3,x2@dtprel@ha
2140 addi 9,9,x2@dtprel@l
2143 ld 9,x3@got@dtprel(2)
2153 .section ".tdata","awT",@progbits
2162 l %r1,foo@GOTNTPOFF(%r12)
2163 l %r1,0(%r1):tls_load:foo
2164 bas %r14,0(%r1,%r13):tls_gdcall:foo
2165 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2172 .section ".tdata","awT",@progbits
2180 lg %r1,foo@GOTNTPOFF(%r12)
2181 larl %r1,foo@INDNTPOFF
2182 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2183 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2186 tls_as_opt="-m64 -Aesame"
2188 sh-*-* | sh[34]-*-*)
2190 .section ".tdata","awT",@progbits
2203 .section ".tdata","awT",@progbits
2206 sethi %tgd_hi22(foo), %o0
2207 add %o0, %tgd_lo10(foo), %o1
2208 add %l7, %o1, %o0, %tgd_add(foo)
2209 call __tls_get_addr, %tgd_call(foo)
2210 sethi %tldm_hi22(foo), %l1
2211 add %l1, %tldm_lo10(foo), %l2
2212 add %l7, %l2, %o0, %tldm_add(foo)
2213 call __tls_get_addr, %tldm_call(foo)
2214 sethi %tldo_hix22(foo), %l3
2215 xor %l3, %tldo_lox10(foo), %l4
2216 add %o0, %l4, %l5, %tldo_add(foo)
2217 sethi %tie_hi22(foo), %o3
2218 add %o3, %tie_lo10(foo), %o3
2219 ld [%l7 + %o3], %o2, %tie_ld(foo)
2220 add %g7, %o2, %o4, %tie_add(foo)
2221 sethi %tle_hix22(foo), %l1
2222 xor %l1, %tle_lox10(foo), %o5
2223 ld [%g7 + %o5], %o1'
2230 if test -z "$tls_first_major"; then
2231 : # If we don't have a check, assume no support.
2233 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2234 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt --fatal-warnings],
2236 [AC_DEFINE(HAVE_AS_TLS, 1,
2237 [Define if your assembler supports thread-local storage.])])
2240 # Target-specific assembler checks.
2243 # All TARGET_ABI_OSF targets.
2244 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2245 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2246 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2249 extbl $3, $2, $3 !lituse_bytoff!1
2250 ldq $2, a($29) !literal!1
2251 ldq $4, b($29) !literal!2
2252 ldq_u $3, 0($2) !lituse_base!1
2253 ldq $27, f($29) !literal!5
2254 jsr $26, ($27), f !lituse_jsr!5
2255 ldah $29, 0($26) !gpdisp!3
2256 lda $0, c($29) !gprel
2257 ldah $1, d($29) !gprelhigh
2258 lda $1, d($1) !gprellow
2259 lda $29, 0($29) !gpdisp!3],,
2260 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2261 [Define if your assembler supports explicit relocations.])])
2265 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2266 [.register %g2, #scratch],,
2267 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2268 [Define if your assembler supports .register.])])
2270 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2272 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2273 [Define if your assembler supports -relax option.])])
2275 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2276 gcc_cv_as_sparc_ua_pcrel,,
2284 .uaword %r_disp32(foo)],
2285 [if test x$gcc_cv_ld != x \
2286 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2287 gcc_cv_as_sparc_ua_pcrel=yes
2290 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2291 [Define if your assembler and linker support unaligned PC relative relocs.])
2293 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2294 gcc_cv_as_sparc_ua_pcrel_hidden,,
2299 .uaword %r_disp32(foo)
2300 .byte 0x32, 0x33, 0x34
2305 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2306 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2307 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2308 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2309 if $gcc_cv_objdump -R conftest 2> /dev/null \
2310 | grep 'DISP32' > /dev/null 2>&1; then
2313 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2317 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2318 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2319 ]) # unaligned pcrel relocs
2321 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2322 gcc_cv_as_sparc_offsetable_lo10,,
2325 or %g1, %lo(ab) + 12, %g1
2326 or %g1, %lo(ab + 12), %g1],
2327 [if test x$gcc_cv_objdump != x \
2328 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2329 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2330 gcc_cv_as_offsetable_lo10=yes
2332 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2333 [Define if your assembler supports offsetable %lo().])])
2337 i[34567]86-*-* | x86_64-*-*)
2339 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2340 gcc_cv_as_ix86_filds_fists,
2341 [2,9,0],, [filds mem; fists mem],,
2342 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2343 [Define if your assembler uses the new HImode fild and fist notation.])])
2345 gcc_GAS_CHECK_FEATURE([cmov syntax],
2346 gcc_cv_as_ix86_cmov_sun_syntax,,,
2347 [cmovl.l %edx, %eax],,
2348 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2349 [Define if your assembler supports the Sun syntax for cmov.])])
2351 # This one is used unconditionally by i386.[ch]; it is to be defined
2352 # to 1 if the feature is present, 0 otherwise.
2353 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2354 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2360 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2361 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2362 [Define true if the assembler supports '.long foo@GOTOFF'.])
2366 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2367 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2369 addl r15 = @ltoffx(x#), gp
2371 ld8.mov r16 = [[r15]], x#],,
2372 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2373 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2379 *-*-aix) conftest_s=' .csect .text[PR]';;
2380 *) conftest_s=' .text';;
2382 conftest_s="$conftest_s
2385 gcc_GAS_CHECK_FEATURE([mfcr field support],
2386 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2388 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2389 [Define if your assembler supports mfcr field.])])
2393 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2394 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2395 [ lw $4,%gp_rel(foo)($4)],,
2396 [if test x$target_cpu_default = x
2397 then target_cpu_default=MASK_EXPLICIT_RELOCS
2398 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2403 # ??? Not all targets support dwarf2 debug_line, even within a version
2404 # of gas. Moreover, we need to emit a valid instruction to trigger any
2405 # info to the output file. So, as supported targets are added to gas 2.11,
2406 # add some instruction here to (also) show we expect this might work.
2407 # ??? Once 2.11 is released, probably need to add first known working
2408 # version to the per-target configury.
2410 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2411 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2412 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2422 if test x"$insn" != x; then
2424 .file 1 \"conftest.s\"
2427 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2428 gcc_cv_as_dwarf2_debug_line,
2429 [elf,2,11,0],, [$conftest_s],
2430 [# ??? This fails with non-gnu grep. Maybe use objdump?
2431 if grep debug_line conftest.o > /dev/null 2>&1; then
2432 gcc_cv_as_dwarf2_debug_line=yes
2435 # The .debug_line file table must be in the exact order that
2436 # we specified the files, since these indices are also used
2437 # by DW_AT_decl_file. Approximate this test by testing if
2438 # the assembler bitches if the same index is assigned twice.
2439 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2440 gcc_cv_as_dwarf2_file_buggy,,,
2444 if test $gcc_cv_as_dwarf2_debug_line = yes \
2445 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2446 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2447 [Define if your assembler supports dwarf2 .file/.loc directives,
2448 and preserves file table indices exactly as given.])
2451 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2452 gcc_cv_as_gdwarf2_flag,
2453 [elf,2,11,0], [--gdwarf2], [$insn],,
2454 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2455 [Define if your assembler supports the --gdwarf2 option.])])
2457 gcc_GAS_CHECK_FEATURE([--gstabs option],
2458 gcc_cv_as_gstabs_flag,
2459 [elf,2,11,0], [--gstabs], [$insn],
2460 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2461 # and warns about it, but still exits successfully. So check for
2463 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2465 else gcc_cv_as_gstabs_flag=yes
2467 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2468 [Define if your assembler supports the --gstabs option.])])
2471 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2472 gcc_cv_ld_ro_rw_mix=unknown
2473 if test $in_tree_ld = yes ; then
2474 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2475 && test $in_tree_ld_is_elf = yes; then
2476 gcc_cv_ld_ro_rw_mix=read-write
2478 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2479 echo '.section myfoosect, "a"' > conftest1.s
2480 echo '.section myfoosect, "aw"' > conftest2.s
2481 echo '.byte 1' >> conftest2.s
2482 echo '.section myfoosect, "a"' > conftest3.s
2483 echo '.byte 0' >> conftest3.s
2484 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2485 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2486 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2487 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2488 conftest2.o conftest3.o > /dev/null 2>&1; then
2489 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2490 | sed -e '/myfoosect/!d' -e N`
2491 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2492 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2493 gcc_cv_ld_ro_rw_mix=read-only
2495 gcc_cv_ld_ro_rw_mix=read-write
2500 rm -f conftest.* conftest[123].*
2503 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2504 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2505 [Define if your linker links a mix of read-only
2506 and read-write sections into a read-write section.])
2508 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2510 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2511 gcc_cv_ld_eh_frame_hdr=no
2512 if test $in_tree_ld = yes ; then
2513 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2514 && test $in_tree_ld_is_elf = yes; then
2515 gcc_cv_ld_eh_frame_hdr=yes
2517 elif test x$gcc_cv_ld != x; then
2518 # Check if linker supports --eh-frame-hdr option
2519 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2520 gcc_cv_ld_eh_frame_hdr=yes
2523 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2524 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2525 [Define if your linker supports --eh-frame-hdr option.])
2527 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2529 AC_MSG_CHECKING(linker position independent executable support)
2531 if test $in_tree_ld = yes ; then
2532 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2533 && test $in_tree_ld_is_elf = yes; then
2536 elif test x$gcc_cv_ld != x; then
2537 # Check if linker supports -pie option
2538 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2542 if test x"$gcc_cv_ld_pie" = xyes; then
2543 AC_DEFINE(HAVE_LD_PIE, 1,
2544 [Define if your linker supports -pie option.])
2546 AC_MSG_RESULT($gcc_cv_ld_pie)
2548 # Miscellaneous target-specific checks.
2551 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2552 gcc_cv_mips_libgloss_startup=no
2553 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2554 if test "x$exec_prefix" = xNONE; then
2555 if test "x$prefix" = xNONE; then
2556 test_prefix=/usr/local
2561 test_prefix=$exec_prefix
2563 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_noncanonical/lib/idt.ld
2565 if grep '^STARTUP' $f > /dev/null 2>&1; then
2566 gcc_cv_mips_libgloss_startup=yes
2570 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2571 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2572 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2574 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2578 if test x$with_sysroot = x && test x$host = x$target \
2579 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2580 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2581 [Define to PREFIX/include if cpp should also search that directory.])
2584 # Figure out what language subdirectories are present.
2585 # Look if the user specified --enable-languages="..."; if not, use
2586 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2588 # NB: embedded tabs in this IF block -- do not untabify
2589 if test x"${enable_languages+set}" != xset; then
2590 if test x"${LANGUAGES+set}" = xset; then
2591 enable_languages="${LANGUAGES}"
2592 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2595 enable_languages=all
2598 if test x"${enable_languages}" = x \
2599 || test x"${enable_languages}" = xyes;
2601 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2604 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2606 # First scan to see if an enabled language requires some other language.
2607 # We assume that a given config-lang.in will list all the language
2608 # front ends it requires, even if some are required indirectly.
2609 for lang in ${srcdir}/*/config-lang.in
2612 # The odd quoting in the next line works around
2613 # an apparent bug in bash 1.12 on linux.
2615 ${srcdir}/[*]/config-lang.in)
2618 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2619 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2620 for other in $this_lang_requires
2622 case ,${enable_languages}, in
2628 enable_languages="$enable_languages,$other"
2637 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2640 for lang in ${srcdir}/*/config-lang.in
2643 # The odd quoting in the next line works around
2644 # an apparent bug in bash 1.12 on linux.
2646 ${srcdir}/[*]/config-lang.in) ;;
2648 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2649 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2650 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2651 if test "x$lang_alias" = x
2653 echo "$lang doesn't set \$language." 1>&2
2656 case ${build_by_default},${enable_languages}, in
2657 *,$lang_alias,*) add_this_lang=yes ;;
2658 no,*) add_this_lang=no ;;
2659 *,all,*) add_this_lang=yes ;;
2660 *) add_this_lang=no ;;
2662 found_languages="${found_languages} ${lang_alias}"
2663 if test x"${add_this_lang}" = xyes; then
2665 ${srcdir}/ada/config-lang.in)
2666 if test x$have_gnat = xyes ; then
2667 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2671 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2681 for expected_language in ${expected_languages} ..
2683 if test "${expected_language}" != ..; then
2684 missing_language="${expected_language}"
2685 if test "${expected_language}" = "c" \
2686 || test "${expected_language}" = "all"; then
2689 for found_language in ${found_languages} ..
2691 if test "${found_language}" != ..; then
2692 if test "${expected_language}" = "${found_language}"; then
2697 if test "x${missing_language}" != x; then
2698 missing_languages="${missing_languages} ${missing_language}"
2703 if test "x$missing_languages" != x; then
2705 The following requested languages were not found:${missing_languages}
2706 The following languages were available: c${found_languages}])
2709 # Make gthr-default.h if we have a thread file.
2711 if test $thread_file != single; then
2712 rm -f gthr-default.h
2713 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2714 gthread_flags=-DHAVE_GTHR_DEFAULT
2716 AC_SUBST(gthread_flags)
2718 # Find out what GC implementation we want, or may, use.
2720 [ --with-gc={simple,page,zone} choose the garbage collection mechanism to use
2723 simple | page | zone)
2727 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2732 echo "Using $GGC for garbage collection."
2734 # Use the system's zlib library.
2736 zlibinc="-I\$(srcdir)/../zlib"
2737 AC_ARG_WITH(system-zlib,
2738 [ --with-system-zlib use installed libz],
2745 dnl Very limited version of automake's enable-maintainer-mode
2747 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2748 dnl maintainer-mode is disabled by default
2749 AC_ARG_ENABLE(maintainer-mode,
2750 [ --enable-maintainer-mode
2751 enable make rules and dependencies not useful
2752 (and sometimes confusing) to the casual installer],
2753 maintainer_mode=$enableval,
2756 AC_MSG_RESULT($maintainer_mode)
2758 if test "$maintainer_mode" = "yes"; then
2765 # Make empty files to contain the specs and options for each language.
2766 # Then add #include lines to for a compiler that has specs and/or options.
2771 for subdir in . $subdirs
2773 if test -f $srcdir/$subdir/lang.opt; then
2774 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2776 if test -f $srcdir/$subdir/lang-specs.h; then
2777 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2779 if test -f $srcdir/$subdir/$subdir-tree.def; then
2780 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2784 # These (without "all_") are set in each config-lang.in.
2785 # `language' must be a single word so is spelled singularly.
2790 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2791 # List of language makefile fragments.
2793 # List of language subdirectory makefiles. Deprecated.
2795 # Files for gengtype
2796 all_gtfiles="$target_gtfiles"
2797 # Files for gengtype with language
2798 all_gtfiles_files_langs=
2799 all_gtfiles_files_files=
2801 # Add the language fragments.
2802 # Languages are added via two mechanisms. Some information must be
2803 # recorded in makefile variables, these are defined in config-lang.in.
2804 # We accumulate them and plug them into the main Makefile.
2805 # The other mechanism is a set of hooks for each of the main targets
2806 # like `clean', `install', etc.
2808 language_hooks="Make-hooks"
2818 . ${srcdir}/$s/config-lang.in
2819 if test "x$language" = x
2821 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2824 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2825 if test -f ${srcdir}/$s/Makefile.in
2826 then all_lang_makefiles="$s/Makefile"
2828 all_languages="$all_languages $language"
2829 if test "x$boot_language" = xyes
2831 all_boot_languages="$all_boot_languages $language"
2833 all_compilers="$all_compilers $compilers"
2834 all_stagestuff="$all_stagestuff $stagestuff"
2835 all_outputs="$all_outputs $outputs"
2836 all_gtfiles="$all_gtfiles $gtfiles"
2839 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2840 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2844 # Pick up gtfiles for c
2847 . ${srcdir}/c-config-lang.in
2848 all_gtfiles="$all_gtfiles $gtfiles"
2851 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2852 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2856 for language in $all_languages
2858 check_languages="$check_languages check-$language"
2861 # We link each language in with a set of hooks, reached indirectly via
2866 target_list="all.build all.cross start.encap rest.encap tags \
2867 install-normal install-common install-man \
2869 mostlyclean clean distclean maintainer-clean \
2870 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2871 for t in $target_list
2874 for lang in $all_languages
2878 echo "lang.$t: $x" >> Make-hooks
2883 echo "dir ." > .gdbinit
2884 echo "dir ${srcdir}" >> .gdbinit
2885 if test x$gdb_needs_out_file_path = xyes
2887 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2889 if test "x$subdirs" != x; then
2892 echo "dir ${srcdir}/$s" >> .gdbinit
2895 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2897 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2898 # absolute path for gcc_tooldir based on inserting the number of up-directory
2899 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2900 # $(libsubdir)/@(unlibsubdir) based path.
2901 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2902 # make and thus we'd get different behavior depending on where we built the
2904 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2905 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
2907 changequote(<<, >>)dnl
2908 # An explanation of the sed strings:
2909 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2910 # -e 's|/$||' match a trailing forward slash and eliminates it
2911 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2912 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2914 # (*) Note this pattern overwrites the first character of the string
2915 # with a forward slash if one is not already present. This is not a
2916 # problem because the exact names of the sub-directories concerned is
2917 # unimportant, just the number of them matters.
2919 # The practical upshot of these patterns is like this:
2921 # prefix exec_prefix result
2922 # ------ ----------- ------
2924 # /foo/ /foo/bar ../
2925 # /foo /foo/bar/ ../
2926 # /foo/ /foo/bar/ ../
2927 # /foo /foo/bar/ugg ../../
2930 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
2931 changequote([, ])dnl
2933 AC_SUBST(gcc_tooldir)
2936 # Find a directory in which to install a shared libgcc.
2938 AC_ARG_ENABLE(version-specific-runtime-libs,
2939 [ --enable-version-specific-runtime-libs
2940 specify that runtime libraries should be
2941 installed in a compiler-specific directory])
2943 AC_ARG_WITH(slibdir,
2944 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2945 slibdir="$with_slibdir",
2946 if test "${enable_version_specific_runtime_libs+set}" = set; then
2947 slibdir='$(libsubdir)'
2948 elif test "$host" != "$target"; then
2949 slibdir='$(build_tooldir)/lib'
2955 objdir=`${PWDCMD-pwd}`
2958 # Substitute configuration variables
2963 AC_SUBST(all_boot_languages)
2964 AC_SUBST(all_compilers)
2965 AC_SUBST(all_gtfiles)
2966 AC_SUBST(all_gtfiles_files_langs)
2967 AC_SUBST(all_gtfiles_files_files)
2968 AC_SUBST(all_lang_makefrags)
2969 AC_SUBST(all_lang_makefiles)
2970 AC_SUBST(all_languages)
2971 AC_SUBST(all_stagestuff)
2972 AC_SUBST(build_exeext)
2973 AC_SUBST(build_install_headers_dir)
2974 AC_SUBST(build_xm_file_list)
2975 AC_SUBST(build_xm_include_list)
2976 AC_SUBST(build_xm_defines)
2977 AC_SUBST(check_languages)
2978 AC_SUBST(cc_set_by_configure)
2979 AC_SUBST(quoted_cc_set_by_configure)
2980 AC_SUBST(cpp_install_dir)
2981 AC_SUBST(xmake_file)
2982 AC_SUBST(tmake_file)
2983 AC_SUBST(extra_headers_list)
2984 AC_SUBST(extra_objs)
2985 AC_SUBST(extra_parts)
2986 AC_SUBST(extra_passes)
2987 AC_SUBST(extra_programs)
2988 AC_SUBST(float_h_file)
2989 AC_SUBST(gcc_config_arguments)
2990 AC_SUBST(gcc_gxx_include_dir)
2991 AC_SUBST(libstdcxx_incdir)
2992 AC_SUBST(gcc_version)
2993 AC_SUBST(gcc_version_full)
2994 AC_SUBST(gcc_version_trigger)
2995 AC_SUBST(host_exeext)
2996 AC_SUBST(host_extra_gcc_objs)
2997 AC_SUBST(host_xm_file_list)
2998 AC_SUBST(host_xm_include_list)
2999 AC_SUBST(host_xm_defines)
3000 AC_SUBST(out_host_hook_obj)
3002 AC_SUBST(lang_opt_files)
3003 AC_SUBST(lang_specs_files)
3004 AC_SUBST(lang_tree_files)
3005 AC_SUBST(local_prefix)
3007 AC_SUBST(objc_boehm_gc)
3009 AC_SUBST(out_object_file)
3010 AC_SUBST(stage_prefix_set_by_configure)
3011 AC_SUBST(quoted_stage_prefix_set_by_configure)
3012 AC_SUBST(symbolic_link)
3013 AC_SUBST(thread_file)
3014 AC_SUBST(tm_file_list)
3015 AC_SUBST(tm_include_list)
3016 AC_SUBST(tm_defines)
3017 AC_SUBST(tm_p_file_list)
3018 AC_SUBST(tm_p_include_list)
3019 AC_SUBST(xm_file_list)
3020 AC_SUBST(xm_include_list)
3021 AC_SUBST(xm_defines)
3022 AC_SUBST(target_noncanonical)
3023 AC_SUBST(c_target_objs)
3024 AC_SUBST(cxx_target_objs)
3025 AC_SUBST(target_cpu_default)
3027 AC_SUBST_FILE(language_hooks)
3030 if test x${build} = x${host} ; then
3031 if test x${host} = x${target} ; then
3032 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3034 echo "Links are now set up to build a cross-compiler" 1>&2
3035 echo " from ${host} to ${target}." 1>&2
3038 if test x${host} = x${target} ; then
3039 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3040 echo " for ${target}." 1>&2
3042 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3043 echo " from ${host} to ${target}." 1>&2
3047 # Configure the subdirectories
3048 # AC_CONFIG_SUBDIRS($subdirs)
3050 # Create the Makefile
3051 # and configure language subdirectories
3052 AC_OUTPUT($all_outputs,
3054 case x$CONFIG_HEADERS in
3055 xauto-host.h:config.in)
3058 # Make sure all the subdirs exist.
3061 test -d $d || mkdir $d
3063 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3064 # bootstrapping and the installation procedure can still use
3065 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3066 # FLAGS_TO_PASS has been modified to solve the problem there.
3067 # This is virtually a duplicate of what happens in configure.lang; we do
3068 # an extra check to make sure this only happens if ln -s can be used.
3069 if test "$symbolic_link" = "ln -s"; then
3070 for d in ${subdirs} fixinc ; do
3071 STARTDIR=`${PWDCMD-pwd}`
3073 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3076 $symbolic_link ../$t $t 2>/dev/null
3083 symbolic_link='$symbolic_link'