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 # Initialization and defaults
27 AC_CONFIG_HEADER(auto-host.h:config.in)
34 # Check for bogus environment variables.
35 # Test if LIBRARY_PATH contains the notation for the current directory
36 # since this would lead to problems installing/building glibc.
37 # LIBRARY_PATH contains the current directory if one of the following
39 # - one of the terminals (":" and ";") is the first or last sign
40 # - two terminals occur directly after each other
41 # - the path contains an element with a dot in it
42 AC_MSG_CHECKING(LIBRARY_PATH variable)
44 case ${LIBRARY_PATH} in
45 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
46 library_path_setting="contains current directory"
49 library_path_setting="ok"
53 AC_MSG_RESULT($library_path_setting)
54 if test "$library_path_setting" != "ok"; then
56 *** LIBRARY_PATH shouldn't contain the current directory when
57 *** building gcc. Please change the environment variable
58 *** and run configure again.])
61 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
62 # since this would lead to problems installing/building glibc.
63 # GCC_EXEC_PREFIX contains the current directory if one of the following
65 # - one of the terminals (":" and ";") is the first or last sign
66 # - two terminals occur directly after each other
67 # - the path contains an element with a dot in it
68 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
70 case ${GCC_EXEC_PREFIX} in
71 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
72 gcc_exec_prefix_setting="contains current directory"
75 gcc_exec_prefix_setting="ok"
79 AC_MSG_RESULT($gcc_exec_prefix_setting)
80 if test "$gcc_exec_prefix_setting" != "ok"; then
82 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
83 *** building gcc. Please change the environment variable
84 *** and run configure again.])
87 # Check for additional parameters
91 [ --with-gnu-ld arrange to work with GNU ld.],
92 gnu_ld_flag="$with_gnu_ld",
97 [ --with-ld arrange to use the specified ld (full pathname)],
98 DEFAULT_LINKER="$with_ld")
99 if test x"${DEFAULT_LINKER+set}" = x"set"; then
100 if test ! -x "$DEFAULT_LINKER"; then
101 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
102 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
105 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
106 [Define to enable the use of a default linker.])
111 [ --with-gnu-as arrange to work with GNU as],
112 gas_flag="$with_gnu_as",
116 [ --with-as arrange to use the specified as (full pathname)],
117 DEFAULT_ASSEMBLER="$with_as")
118 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
119 if test ! -x "$DEFAULT_ASSEMBLER"; then
120 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
121 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
124 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
125 [Define to enable the use of a default assembler.])
130 [ --with-stabs arrange to use stabs instead of host debug format],
136 [ --with-elf arrange to use ELF instead of host debug format],
140 # Specify the local prefix
142 AC_ARG_WITH(local-prefix,
143 [ --with-local-prefix=DIR specifies directory to put local include],
144 [case "${withval}" in
145 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
147 *) local_prefix=$with_local_prefix ;;
150 # Default local prefix if it is empty
151 if test x$local_prefix = x; then
152 local_prefix=/usr/local
155 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
156 # passed in by the toplevel make and thus we'd get different behavior
157 # depending on where we built the sources.
159 # Specify the g++ header file directory
160 AC_ARG_WITH(gxx-include-dir,
161 [ --with-gxx-include-dir=DIR
162 specifies directory to put g++ header files],
163 [case "${withval}" in
164 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
166 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
169 if test x${gcc_gxx_include_dir} = x; then
170 if test x${enable_version_specific_runtime_libs} = xyes; then
171 gcc_gxx_include_dir='${libsubdir}/include/c++'
173 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
174 changequote(<<, >>)dnl
175 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
180 # Determine the host, build, and target systems
183 # Set program_transform_name
186 # Find the native compiler
189 # autoconf is lame and doesn't give us any substitution variable for this.
190 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
191 NO_MINUS_C_MINUS_O=yes
193 OUTPUT_OPTION='-o $@'
195 AC_SUBST(NO_MINUS_C_MINUS_O)
196 AC_SUBST(OUTPUT_OPTION)
198 # See if GNAT has been installed
201 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
202 ac_cv_prog_cc_no_long_long,
203 [save_CFLAGS="$CFLAGS"
204 CFLAGS="-Wno-long-long"
205 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
206 ac_cv_prog_cc_no_long_long=no)
207 CFLAGS="$save_CFLAGS"])
209 if test x$have_gnat != xno ; then
210 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
211 ac_cv_prog_adac_no_long_long,
212 [cat >conftest.adb <<EOF
213 procedure conftest is begin null; end conftest;
215 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
216 ac_cv_prog_adac_no_long_long=yes
218 ac_cv_prog_adac_no_long_long=no
222 ac_cv_prog_adac_no_long_long=yes
226 if test $ac_cv_prog_cc_no_long_long = yes && \
227 test $ac_cv_prog_adac_no_long_long = yes ; then
228 strict1_warn="-pedantic -Wno-long-long"
230 AC_SUBST(strict1_warn)
240 # sizeof(char) is 1 by definition.
241 AC_COMPILE_CHECK_SIZEOF(short)
242 AC_COMPILE_CHECK_SIZEOF(int)
243 AC_COMPILE_CHECK_SIZEOF(long)
244 if test $ac_cv_c_long_long = yes; then
245 AC_COMPILE_CHECK_SIZEOF(long long)
247 if test $ac_cv_c___int64 = yes; then
248 AC_COMPILE_CHECK_SIZEOF(__int64)
253 # If the native compiler is GCC, we can enable warnings even in stage1.
254 # That's useful for people building cross-compilers, or just running a
257 if test "x$GCC" = "xyes"; then
258 warn_cflags='$(GCC_WARN_CFLAGS)'
260 AC_SUBST(warn_cflags)
262 # Determine whether or not multilibs are enabled.
263 AC_ARG_ENABLE(multilib,
264 [ --enable-multilib enable library support for multiple ABIs],
265 [], [enable_multilib=yes])
266 AC_SUBST(enable_multilib)
268 # Enable -Werror in bootstrap stage2 and later.
269 # Change the default to "no" on release branches.
270 AC_ARG_ENABLE(werror,
271 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
273 if test x$enable_werror = xyes ; then
278 # Enable expensive internal checks
279 AC_ARG_ENABLE(checking,
280 [ --enable-checking[=LIST]
281 enable expensive run-time checks. With LIST,
282 enable only specific categories of checks.
283 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
284 default is misc,tree,gc,rtlflag],
290 ac_gc_always_collect=
291 case "${enableval}" in
292 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
293 ac_rtlflag_checking=1 ;;
295 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
296 set fnord $enableval; shift
301 misc) ac_checking=1 ;;
302 tree) ac_tree_checking=1 ;;
303 rtlflag) ac_rtlflag_checking=1 ;;
304 rtl) ac_rtl_checking=1 ;;
305 gc) ac_gc_checking=1 ;;
306 gcac) ac_gc_always_collect=1 ;;
307 valgrind) ac_checking_valgrind=1 ;;
308 *) AC_MSG_ERROR(unknown check category $check) ;;
314 # Enable some checks by default for development versions of GCC
315 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
317 if test x$ac_checking != x ; then
318 AC_DEFINE(ENABLE_CHECKING, 1,
319 [Define if you want more run-time sanity checks. This one gets a grab
320 bag of miscellaneous but relatively cheap checks.])
321 nocommon_flag=-fno-common
323 AC_SUBST(nocommon_flag)
324 if test x$ac_tree_checking != x ; then
325 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
326 [Define if you want all operations on trees (the basic data
327 structure of the front ends) to be checked for dynamic type safety
328 at runtime. This is moderately expensive.])
330 if test x$ac_rtl_checking != x ; then
331 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
332 [Define if you want all operations on RTL (the basic data structure
333 of the optimizer and back end) to be checked for dynamic type safety
334 at runtime. This is quite expensive.])
336 if test x$ac_rtlflag_checking != x ; then
337 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
338 [Define if you want RTL flag accesses to be checked against the RTL
339 codes that are supported for each access macro. This is relatively
342 if test x$ac_gc_checking != x ; then
343 AC_DEFINE(ENABLE_GC_CHECKING, 1,
344 [Define if you want the garbage collector to do object poisoning and
345 other memory allocation checks. This is quite expensive.])
347 if test x$ac_gc_always_collect != x ; then
348 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
349 [Define if you want the garbage collector to operate in maximally
350 paranoid mode, validating the entire heap and collecting garbage at
351 every opportunity. This is extremely expensive.])
353 valgrind_path_defines=
355 if test x$ac_checking_valgrind != x ; then
356 # It is certainly possible that there's valgrind but no valgrind.h.
357 # GCC relies on making annotations so we must have both.
358 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
359 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
360 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
361 if test "x$valgrind_path" = "x" || test $have_valgrind_h = no; then
362 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h])
364 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
365 valgrind_command="$valgrind_path -q"
366 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
367 [Define if you want to run subprograms and generated programs
368 through valgrind (a memory checker). This is extremely expensive.])
370 AC_SUBST(valgrind_path_defines)
371 AC_SUBST(valgrind_command)
373 # Enable code coverage collection
374 AC_ARG_ENABLE(coverage,
375 [ --enable-coverage[=LEVEL]
376 enable compiler\'s code coverage collection.
377 Use to measure compiler performance and locate
378 unused parts of the compiler. With LEVEL, specify
379 optimization. Values are opt, noopt,
381 [case "${enableval}" in
383 coverage_flags="-fprofile-arcs -ftest-coverage -O0 -DSELF_COVERAGE=1"
386 coverage_flags="-fprofile-arcs -ftest-coverage -O2 -DSELF_COVERAGE=2"
389 AC_MSG_ERROR(unknown coverage setting $enableval)
393 AC_SUBST(coverage_flags)
395 AC_ARG_WITH(cpp_install_dir,
396 [ --with-cpp-install-dir=DIR
397 install the user visible C preprocessor in DIR
398 (relative to PREFIX) as well as PREFIX/bin],
399 [if test x$withval = xyes; then
400 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
401 elif test x$withval != xno; then
402 cpp_install_dir=$withval
405 # Enable __cxa_atexit for C++.
406 AC_ARG_ENABLE(__cxa_atexit,
407 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
409 if test x$enable___cxa_atexit = xyes; then
410 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
411 [Define if you want to use __cxa_atexit, rather than atexit, to
412 register C++ destructors for local statics and global objects.
413 This is essential for fully standards-compliant handling of
414 destructors, but requires __cxa_atexit in libc.])
417 # Enable Multibyte Characters for C/C++
418 AC_ARG_ENABLE(c-mbchar,
419 [ --enable-c-mbchar enable multibyte characters for C and C++],
420 if test x$enable_c_mbchar != xno; then
421 AC_DEFINE(MULTIBYTE_CHARS, 1,
422 [Define if you want the C and C++ compilers to support multibyte
423 character sets for source code.])
427 # Pass with no value to take the default
428 # Pass with a value to specify a thread package
429 AC_ARG_ENABLE(threads,
430 [ --enable-threads enable thread usage for target GCC
431 --enable-threads=LIB use LIB thread package for target GCC],,
434 enable_threads_flag=$enable_threads
435 # Check if a valid thread package
436 case x${enable_threads_flag} in
439 target_thread_file='single'
443 target_thread_file=''
445 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
446 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
447 target_thread_file=$enable_threads_flag
450 echo "$enable_threads is an unknown thread package" 1>&2
455 AC_ARG_ENABLE(objc-gc,
456 [ --enable-objc-gc enable the use of Boehm's garbage collector with
457 the GNU Objective-C runtime],
458 if test x$enable_objc_gc = xno; then
466 [ --with-dwarf2 force the default debug format to be DWARF 2],
467 dwarf2="$with_dwarf2",
470 AC_ARG_ENABLE(shared,
471 [ --disable-shared don't provide a shared libgcc],
473 case $enable_shared in
477 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
478 for pkg in $enableval; do
479 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
486 ], [enable_shared=yes])
487 AC_SUBST(enable_shared)
490 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
492 case ${with_sysroot} in
493 yes) TARGET_SYSTEM_ROOT='${gcc_tooldir}/sys-root' ;;
494 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
497 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
498 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
500 if test "x$exec_prefix" = xNONE; then
501 if test "x$prefix" = xNONE; then
502 test_prefix=/usr/local
507 test_prefix=$exec_prefix
509 case ${TARGET_SYSTEM_ROOT} in
511 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
512 TARGET_SYSTEM_ROOT_DEFINE="$t"
517 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=0'
518 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
520 AC_SUBST(TARGET_SYSTEM_ROOT)
521 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
522 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
524 # Stage specific cflags for build.
530 stage1_cflags="-Wa,-J"
536 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
537 # sources; use -no-cpp-precomp to get to GNU cpp.
538 # Apple's GCC has bugs in designated initializer handling, so disable
540 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
543 AC_SUBST(stage1_cflags)
547 AC_MSG_CHECKING([whether a default assembler was specified])
548 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
549 if test x"$gas_flag" = x"no"; then
550 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
552 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
558 AC_MSG_CHECKING([whether a default linker was specified])
559 if test x"${DEFAULT_LINKER+set}" = x"set"; then
560 if test x"$gnu_ld_flag" = x"no"; then
561 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
563 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
569 AC_MSG_CHECKING(for GNU C library)
570 AC_CACHE_VAL(gcc_cv_glibc,
572 [#include <features.h>],[
573 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
574 #error Not a GNU C library system
578 AC_MSG_RESULT($gcc_cv_glibc)
579 if test $gcc_cv_glibc = yes; then
580 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
583 # Find some useful tools
592 gcc_AC_HEADER_STDBOOL
595 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
596 fcntl.h unistd.h sys/file.h sys/time.h \
597 sys/resource.h sys/param.h sys/times.h sys/stat.h \
598 direct.h malloc.h langinfo.h ldfcn.h)
600 # Check for thread headers.
601 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
602 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
604 # These tests can't be done till we know if we have limits.h.
607 gcc_AC_C_FLOAT_FORMAT
609 # See if we have the mktemp command.
610 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
612 # Do we have a single-tree copy of texinfo?
613 if test -f $srcdir/../texinfo/Makefile.in; then
614 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
615 gcc_cv_prog_makeinfo_modern=yes
616 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
618 # See if makeinfo has been installed and is modern enough
619 # that we can use it.
620 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
621 [GNU texinfo.* \([0-9][0-9.]*\)],
625 if test $gcc_cv_prog_makeinfo_modern = no; then
627 *** Makeinfo is missing or too old.
628 *** Info documentation will not be built.])
631 BUILD_INFO=info AC_SUBST(BUILD_INFO)
634 # Is pod2man recent enough to regenerate manpages?
635 AC_MSG_CHECKING([for recent Pod::Man])
636 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
638 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
645 dnl Don't use AC_PROG_LEX; we insist on flex.
646 dnl LEXLIB is not useful in gcc.
647 if test -f $srcdir/../flex/skel.c; then
648 FLEX='$(objdir)/../flex/flex'
650 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
654 # The -L switch is so bison can find its skeleton file.
655 if test -f $srcdir/../bison/bison.simple; then
656 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
658 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
661 # These libraries may be used by collect2.
662 # We may need a special search path to get them linked.
663 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
665 for libs in '' -lld -lmld \
666 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
667 '-L/usr/lib/cmplrs/cc3.11 -lmld'
670 AC_TRY_LINK_FUNC(ldopen,
671 [gcc_cv_collect2_libs="$libs"; break])
674 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
675 case $gcc_cv_collect2_libs in
677 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
679 AC_SUBST(COLLECT2_LIBS)
681 # When building Ada code on Alpha, we need exc_resume which is usually in
682 # -lexc. So test for it.
685 AC_SEARCH_LIBS(exc_resume, exc)
688 AC_SUBST(GNAT_LIBEXC)
690 # See if the stage1 system preprocessor understands the ANSI C
691 # preprocessor stringification operator. (Used by symcat.h.)
694 # Use <inttypes.h> only if it exists,
695 # doesn't clash with <sys/types.h>, and declares intmax_t.
696 AC_MSG_CHECKING(for inttypes.h)
697 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
699 [#include <sys/types.h>
700 #include <inttypes.h>],
702 [gcc_cv_header_inttypes_h=yes],
703 gcc_cv_header_inttypes_h=no)])
704 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
705 if test $gcc_cv_header_inttypes_h = yes; then
706 AC_DEFINE(HAVE_INTTYPES_H, 1,
707 [Define if you have a working <inttypes.h> header file.])
710 dnl Disabled until we have a complete test for buggy enum bitfields.
711 dnl gcc_AC_C_ENUM_BF_UNSIGNED
713 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
714 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
715 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
718 AC_CHECK_TYPE(ssize_t, int)
720 # Try to determine the array type of the second argument of getgroups
721 # for the target system (int or gid_t).
723 if test "${target}" = "${build}"; then
724 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
727 # This condition may need some tweaking. It should include all
728 # targets where the array type of the second argument of getgroups
729 # is int and the type of gid_t is not equivalent to int.
730 *-*-sunos* | *-*-ultrix*)
731 TARGET_GETGROUPS_T=int
734 TARGET_GETGROUPS_T=gid_t
738 AC_SUBST(TARGET_GETGROUPS_T)
740 gcc_AC_FUNC_PRINTF_PTR
745 *** UWIN may not be used as a host platform because
746 *** linking with posix.dll is not allowed by the GNU GPL])
749 # Under VMS, vfork works very different than on Unix. The standard test
750 # won't work, and it isn't easily adaptable. It makes more sense to
752 ac_cv_func_vfork_works=yes
756 AC_FUNC_MMAP_ANYWHERE
761 # We will need to find libiberty.h and ansidecl.h
762 saved_CFLAGS="$CFLAGS"
763 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
764 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
765 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
766 fprintf_unlocked strstr errno vasprintf \
767 malloc realloc calloc free basename getopt clock, , ,[
768 #include "ansidecl.h"
769 #include "system.h"])
771 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
772 #include "ansidecl.h"
774 #ifdef HAVE_SYS_RESOURCE_H
775 #include <sys/resource.h>
779 gcc_AC_CHECK_DECLS(ldgetname, , ,[
780 #include "ansidecl.h"
787 gcc_AC_CHECK_DECLS(times, , ,[
788 #include "ansidecl.h"
790 #ifdef HAVE_SYS_TIMES_H
791 #include <sys/times.h>
795 # More time-related stuff.
796 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
798 #include "ansidecl.h"
800 #ifdef HAVE_SYS_TIMES_H
801 #include <sys/times.h>
803 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
804 if test $ac_cv_struct_tms = yes; then
805 AC_DEFINE(HAVE_STRUCT_TMS, 1,
806 [Define if <sys/times.h> defines struct tms.])
809 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
810 # revisit after autoconf 2.50.
811 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
813 #include "ansidecl.h"
815 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
816 if test $gcc_cv_type_clock_t = yes; then
817 AC_DEFINE(HAVE_CLOCK_T, 1,
818 [Define if <time.h> defines clock_t.])
821 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
823 #include "ansidecl.h"
826 [if ((uchar *)0) return 0;
827 if (sizeof(uchar)) return 0;],
828 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
829 if test $ac_cv_type_uchar = yes; then
830 AC_DEFINE(HAVE_UCHAR, 1,
831 [Define if <sys/types.h> defines \`uchar'.])
834 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
835 CFLAGS="$saved_CFLAGS"
837 gcc_AC_INITFINI_ARRAY
839 # mkdir takes a single argument on some systems.
840 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
848 # With Setjmp/Longjmp based exception handling.
849 AC_ARG_ENABLE(sjlj-exceptions,
850 [ --enable-sjlj-exceptions
851 arrange to use setjmp/longjmp exception handling],
852 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
853 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
854 [Define 0/1 to force the choice for exception handling model.])])
856 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
857 # Use libunwind based exception handling.
858 AC_ARG_ENABLE(libunwind-exceptions,
859 [ --enable-libunwind-exceptions force use libunwind for exceptions],
860 use_libunwind_exceptions=$enableval,
861 use_libunwind_exceptions=$use_libunwind_default)
862 if test x"$use_libunwind_exceptions" = xyes; then
863 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
864 [Define if gcc should use -lunwind.])
870 build_install_headers_dir=install-headers-tar
875 host_truncate_target=
878 # Decode the host machine, then the target machine.
879 # For the host machine, we save the xm_file variable as host_xm_file;
880 # then we decode the target machine and forget everything else
881 # that came from the host machine.
882 for machine in $build $host $target; do
883 . ${srcdir}/config.gcc
886 extra_objs="${host_extra_objs} ${extra_objs}"
888 # Default the target-machine variables that were not explicitly set.
889 if test x"$tm_file" = x
890 then tm_file=$cpu_type/$cpu_type.h; fi
892 if test x"$extra_headers" = x
893 then extra_headers=; fi
895 if test x$md_file = x
896 then md_file=$cpu_type/$cpu_type.md; fi
898 if test x$out_file = x
899 then out_file=$cpu_type/$cpu_type.c; fi
901 if test x"$tmake_file" = x
902 then tmake_file=$cpu_type/t-$cpu_type
905 if test x"$dwarf2" = xyes
906 then tm_file="$tm_file tm-dwarf2.h"
909 # Say what files are being used for the output code and MD file.
910 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
911 echo "Using \`$srcdir/config/$md_file' as machine description file."
913 # If any of the xm_file variables contain nonexistent files, warn
914 # about them and drop them.
917 for x in $build_xm_file; do
918 if test -f $srcdir/config/$x
920 else AC_MSG_WARN($srcdir/config/$x does not exist.)
926 for x in $host_xm_file; do
927 if test -f $srcdir/config/$x
929 else AC_MSG_WARN($srcdir/config/$x does not exist.)
935 for x in $xm_file; do
936 if test -f $srcdir/config/$x
938 else AC_MSG_WARN($srcdir/config/$x does not exist.)
944 for f in $tm_file; do
947 if test $count = ax; then
948 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
950 echo "Using the following target machine macro files:"
951 for f in $tm_file; do
952 echo " $srcdir/config/$f"
956 if test x$need_64bit_hwint = xyes; then
957 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
958 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
962 for f in $host_xm_file; do
965 if test $count = a; then
967 elif test $count = ax; then
968 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
970 echo "Using the following host machine macro files:"
971 for f in $host_xm_file; do
972 echo " $srcdir/config/$f"
975 echo "Using ${out_host_hook_obj} for host machine hooks."
977 if test "$host_xm_file" != "$build_xm_file"; then
979 for f in $build_xm_file; do
982 if test $count = a; then
984 elif test $count = ax; then
985 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
987 echo "Using the following build machine macro files:"
988 for f in $build_xm_file; do
989 echo " $srcdir/config/$f"
994 if test x$thread_file = x; then
995 if test x$target_thread_file != x; then
996 thread_file=$target_thread_file
1002 # Look for a file containing extra machine modes.
1003 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1004 extra_modes_file='$(srcdir)'/config/${extra_modes}
1005 AC_SUBST(extra_modes_file)
1006 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1007 [Define to the name of a file containing a list of extra machine modes
1008 for this architecture.])
1009 AC_DEFINE(EXTRA_CC_MODES, 1,
1010 [Define if the target architecture needs extra machine modes to represent
1011 the results of comparisons.])
1014 # auto-host.h is the file containing items generated by autoconf and is
1015 # the first file included by config.h.
1016 # If host=build, it is correct to have bconfig include auto-host.h
1017 # as well. If host!=build, we are in error and need to do more
1018 # work to find out the build config parameters.
1019 if test x$host = x$build
1021 build_auto=auto-host.h
1024 # We create a subdir, then run autoconf in the subdir.
1025 # To prevent recursion we set host and build for the new
1026 # invocation of configure to the build for this invocation
1033 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1034 *) realsrcdir=../${srcdir};;
1036 saved_CFLAGS="${CFLAGS}"
1037 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1038 ${realsrcdir}/configure \
1039 --target=$target_alias --host=$build_alias --build=$build_alias
1040 CFLAGS="${saved_CFLAGS}"
1042 # We just finished tests for the build machine, so rename
1043 # the file auto-build.h in the gcc directory.
1044 mv auto-host.h ../auto-build.h
1047 build_auto=auto-build.h
1048 FORBUILD=../build-$build_alias
1052 tm_file="${tm_file} defaults.h"
1053 tm_p_file="${tm_p_file} tm-preds.h"
1054 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1055 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1056 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1057 # put this back in temporarily.
1058 xm_file="ansidecl.h ${xm_file}"
1060 # Truncate the target if necessary
1061 if test x$host_truncate_target != x; then
1062 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1065 # Get the version trigger filename from the toplevel
1066 if test "${with_gcc_version_trigger+set}" = set; then
1067 gcc_version_trigger=$with_gcc_version_trigger
1069 gcc_version_trigger=${srcdir}/version.c
1072 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1073 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1075 # Compile in configure arguments.
1076 if test -f configargs.h ; then
1077 # Being re-configured.
1078 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1079 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1081 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1083 cat > configargs.h <<EOF
1084 /* Generated automatically. */
1085 static const char configuration_arguments[] = "$gcc_config_arguments";
1086 static const char thread_model[] = "$thread_file";
1090 # Internationalization
1092 VERSION="$gcc_version"
1096 # Enable NLS support by default
1098 [ --enable-nls use Native Language Support (default)],
1101 # if cross compiling, disable NLS support.
1102 # It's not worth the trouble, at least for now.
1104 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1105 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1111 # Windows32 Registry support for specifying GCC installation paths.
1112 AC_ARG_ENABLE(win32-registry,
1113 [ --disable-win32-registry
1114 disable lookup of installation paths in the
1115 Registry on Windows hosts
1116 --enable-win32-registry enable registry lookup (default)
1117 --enable-win32-registry=KEY
1118 use KEY instead of GCC version as the last portion
1119 of the registry key],,)
1121 win32 | pe | cygwin* | mingw32* | uwin*)
1122 AC_MSG_CHECKING(whether windows registry support is requested)
1123 if test "x$enable_win32_registry" != xno; then
1124 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1125 [Define to 1 if installation paths should be looked up in Windows32
1126 Registry. Ignored on non windows32 hosts.])
1128 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1133 # Check if user specified a different registry key.
1134 case "x${enable_win32_registry}" in
1137 gcc_cv_win32_registry_key="$VERSION"
1140 # no registry lookup.
1141 gcc_cv_win32_registry_key=''
1144 # user-specified key.
1145 gcc_cv_win32_registry_key="$enable_win32_registry"
1149 if test "x$enable_win32_registry" != xno; then
1150 AC_MSG_CHECKING(registry key on windows hosts)
1151 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1152 [Define to be the last portion of registry key on windows hosts.])
1153 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1158 # Get an absolute path to the GCC top-level source directory
1159 holddir=`${PWDCMD-pwd}`
1161 topdir=`${PWDCMD-pwd}`
1164 # Conditionalize the makefile for this host machine.
1165 # Make-host contains the concatenation of all host makefile fragments
1166 # [there can be more than one]. This file is built by configure.frag.
1167 host_overrides=Make-host
1168 dep_host_xmake_file=
1169 for f in .. ${host_xmake_file}
1171 if test -f ${srcdir}/config/$f
1173 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1177 # Conditionalize the makefile for this target machine.
1178 # Make-target contains the concatenation of all host makefile fragments
1179 # [there can be more than one]. This file is built by configure.frag.
1180 target_overrides=Make-target
1182 for f in .. ${tmake_file}
1184 if test -f ${srcdir}/config/$f
1186 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1190 # If the host doesn't support symlinks, modify CC in
1191 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1192 # Otherwise, we can use "CC=$(CC)".
1194 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1196 cc_set_by_configure="\$(CC)"
1197 quoted_cc_set_by_configure="\$(CC)"
1198 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1199 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1202 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1204 symbolic_link="cp -p"
1208 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1209 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1210 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1211 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1215 out_object_file=`basename $out_file .c`.o
1218 for f in $tm_file; do
1221 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1223 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1224 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1229 for f in $tm_p_file; do
1232 tm_p_file_list="${tm_p_file_list} $f" ;;
1233 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1238 for f in $host_xm_file; do
1241 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1243 host_xm_file_list="${host_xm_file_list} $f" ;;
1245 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1246 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1251 for f in $build_xm_file; do
1254 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1255 auto-build.h | auto-host.h )
1256 build_xm_file_list="${build_xm_file_list} $f" ;;
1258 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1259 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1263 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1264 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1265 CROSS= AC_SUBST(CROSS)
1266 ALL=all.internal AC_SUBST(ALL)
1267 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1268 if test x$host != x$target
1270 CROSS="-DCROSS_COMPILE"
1272 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1273 case "$host","$target" in
1274 i?86-*-*,x86_64-*-* \
1275 | powerpc*-*-*,powerpc64*-*-*)
1276 CROSS="$CROSS -DNATIVE_CROSS" ;;
1280 # If this is a cross-compiler that does not
1281 # have its own set of headers then define
1284 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1285 # This prevents libgcc2 from containing any code which requires libc
1288 if { test x$host != x$target && test "x$with_headers" = x &&
1289 test "x$with_sysroot" = x ; } || test x$with_newlib = xyes ; then
1290 inhibit_libc=-Dinhibit_libc
1292 AC_SUBST(inhibit_libc)
1294 # When building gcc with a cross-compiler, we need to adjust things so
1295 # that the generator programs are still built with the native compiler.
1296 # Also, we cannot run fixincludes or fix-header.
1298 # These are the normal (build=host) settings:
1299 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1300 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1301 BUILD_CC='$(CC)' AC_SUBST(BUILD_CC)
1302 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1304 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1305 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1307 # And these apply if build != host.
1308 if test x$build != x$host
1311 BUILD_PREFIX_1=build-
1312 BUILD_CC='$(CC_FOR_BUILD)'
1313 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1319 # Expand extra_headers to include complete path.
1320 # This substitutes for lots of t-* files.
1322 if test "x$extra_headers" = x
1325 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1326 for file in $extra_headers;
1328 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1332 if test x$use_collect2 = xno; then
1336 # Add a definition of USE_COLLECT2 if system wants one.
1337 if test x$use_collect2 != x
1339 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1340 xm_defines="${xm_defines} USE_COLLECT2"
1343 # If we have gas in the build tree, make a link to it.
1344 if test -f ../gas/Makefile; then
1345 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1348 # If we have nm and objdump in the build tree, make a link to them.
1349 if test -f ../binutils/Makefile; then
1350 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1351 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1354 # If we have ld in the build tree, make a link to it.
1355 if test -f ../ld/Makefile; then
1356 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1359 # Figure out what assembler we will be using.
1360 AC_MSG_CHECKING(what assembler to use)
1362 gcc_cv_gas_major_version=
1363 gcc_cv_gas_minor_version=
1364 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1365 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1366 if test -x "$DEFAULT_ASSEMBLER"; then
1367 gcc_cv_as="$DEFAULT_ASSEMBLER"
1368 elif test -x "$AS"; then
1370 elif test -x as$host_exeext; then
1371 # Build using assembler in the current directory.
1372 gcc_cv_as=./as$host_exeext
1373 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1374 # Single tree build which includes gas.
1375 for f in $gcc_cv_as_bfd_srcdir/configure $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1378 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1380 if test x$gcc_cv_gas_version != x; then
1385 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1386 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1387 gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.[0-9]*\.\([0-9]*\)"`
1391 if test "x$gcc_cv_as" = x; then
1392 # Search the same directories that the installed compiler will
1393 # search. Else we may find the wrong assembler and lose. If we
1394 # do not find a suitable assembler binary, then try the user's
1397 # Also note we have to check MD_EXEC_PREFIX before checking the
1398 # user's path. Unfortunately, there is no good way to get at the
1399 # value of MD_EXEC_PREFIX here. So we do a brute force search
1400 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1401 # to be fixed as part of the make/configure rewrite too.
1403 if test "x$exec_prefix" = xNONE; then
1404 if test "x$prefix" = xNONE; then
1405 test_prefix=/usr/local
1410 test_prefix=$exec_prefix
1413 # If the loop below does not find an assembler, then use whatever
1414 # one we can find in the users's path.
1416 if test "x$program_prefix" != xNONE; then
1417 gcc_cv_as=${program_prefix}as$host_exeext
1419 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1422 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1423 $test_prefix/lib/gcc-lib/$target_alias \
1424 /usr/lib/gcc/$target_alias/$gcc_version \
1425 /usr/lib/gcc/$target_alias \
1426 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1427 $test_prefix/$target_alias/bin"
1429 if test x$host = x$target; then
1430 test_dirs="$test_dirs \
1435 /bsd43/usr/lib/cmplrs/cc \
1436 /usr/cross64/usr/bin \
1437 /usr/lib/cmplrs/cc \
1438 /sysv/usr/lib/cmplrs/cc \
1439 /svr4/usr/lib/cmplrs/cc \
1443 for dir in $test_dirs; do
1444 if test -x $dir/as$host_exeext; then
1445 gcc_cv_as=$dir/as$host_exeext
1450 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1451 AC_MSG_RESULT("newly built gas")
1453 AC_MSG_RESULT($gcc_cv_as)
1456 # Figure out what linker we will be using.
1457 AC_MSG_CHECKING(what linker to use)
1459 gcc_cv_gld_major_version=
1460 gcc_cv_gld_minor_version=
1461 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1462 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1463 if test -x "$DEFAULT_LINKER"; then
1464 gcc_cv_ld="$DEFAULT_LINKER"
1465 elif test -x "$LD"; then
1467 elif test -x ld$host_exeext; then
1468 # Build using linker in the current directory.
1469 gcc_cv_ld=./ld$host_exeext
1470 elif test -f $gcc_cv_ld_gld_srcdir/configure.in -a -f ../ld/Makefile; then
1471 # Single tree build which includes ld.
1472 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
1475 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1477 if test x$gcc_cv_gld_version != x; then
1482 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1483 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1487 if test "x$gcc_cv_ld" = x; then
1488 # Search the same directories that the installed compiler will
1489 # search. Else we may find the wrong linker and lose. If we
1490 # do not find a suitable linker binary, then try the user's
1493 # Also note we have to check MD_EXEC_PREFIX before checking the
1494 # user's path. Unfortunately, there is no good way to get at the
1495 # value of MD_EXEC_PREFIX here. So we do a brute force search
1496 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1497 # to be fixed as part of the make/configure rewrite too.
1499 if test "x$exec_prefix" = xNONE; then
1500 if test "x$prefix" = xNONE; then
1501 test_prefix=/usr/local
1506 test_prefix=$exec_prefix
1509 # If the loop below does not find an linker, then use whatever
1510 # one we can find in the users's path.
1512 if test "x$program_prefix" != xNONE; then
1513 gcc_cv_ld=${program_prefix}ld$host_exeext
1515 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1518 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1519 $test_prefix/lib/gcc-lib/$target_alias \
1520 /usr/lib/gcc/$target_alias/$gcc_version \
1521 /usr/lib/gcc/$target_alias \
1522 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1523 $test_prefix/$target_alias/bin"
1525 if test x$host = x$target; then
1526 test_dirs="$test_dirs \
1531 /bsd43/usr/lib/cmplrs/cc \
1532 /usr/cross64/usr/bin \
1533 /usr/lib/cmplrs/cc \
1534 /sysv/usr/lib/cmplrs/cc \
1535 /svr4/usr/lib/cmplrs/cc \
1539 for dir in $test_dirs; do
1540 if test -x $dir/ld$host_exeext; then
1541 gcc_cv_ld=$dir/ld$host_exeext
1546 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1547 AC_MSG_RESULT("newly built ld")
1549 AC_MSG_RESULT($gcc_cv_ld)
1552 # Figure out what nm we will be using.
1553 AC_MSG_CHECKING(what nm to use)
1554 if test -x nm$host_exeext; then
1555 gcc_cv_nm=./nm$host_exeext
1556 elif test "x$program_prefix" != xNONE; then
1557 gcc_cv_nm=${program_prefix}nm$host_exeext
1559 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1561 AC_MSG_RESULT($gcc_cv_nm)
1563 # Figure out what objdump we will be using.
1564 AC_MSG_CHECKING(what objdump to use)
1565 if test -x objdump$host_exeext; then
1566 gcc_cv_objdump=./objdump$host_exeext
1567 elif test "x$program_prefix" != xNONE; then
1568 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1570 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1572 AC_MSG_RESULT($gcc_cv_objdump)
1574 # Figure out what assembler alignment features are present.
1575 AC_MSG_CHECKING(assembler alignment features)
1576 gcc_cv_as_alignment_features=none
1577 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1578 # Gas version 2.6 and later support for .balign and .p2align.
1579 # bytes to skip when using .p2align.
1580 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1581 gcc_cv_as_alignment_features=".balign and .p2align"
1582 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1584 # Gas version 2.8 and later support specifying the maximum
1585 # bytes to skip when using .p2align.
1586 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1587 gcc_cv_as_alignment_features=".p2align including maximum skip"
1588 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1590 elif test x$gcc_cv_as != x; then
1591 # Check if we have .balign and .p2align
1592 echo ".balign 4" > conftest.s
1593 echo ".p2align 2" >> conftest.s
1594 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1595 gcc_cv_as_alignment_features=".balign and .p2align"
1596 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1598 rm -f conftest.s conftest.o
1599 # Check if specifying the maximum bytes to skip when
1600 # using .p2align is supported.
1601 echo ".p2align 4,,7" > conftest.s
1602 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1603 gcc_cv_as_alignment_features=".p2align including maximum skip"
1604 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1606 rm -f conftest.s conftest.o
1608 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1610 AC_MSG_CHECKING(assembler subsection support)
1611 gcc_cv_as_subsections=no
1612 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1613 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1614 gcc_cv_as_subsections="working .subsection -1"
1616 elif test x$gcc_cv_as != x; then
1617 # Check if we have .subsection
1618 echo ".subsection 1" > conftest.s
1619 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1620 gcc_cv_as_subsections=".subsection"
1621 if test x$gcc_cv_nm != x; then
1622 cat > conftest.s <<EOF
1623 conftest_label1: .word 0
1625 conftest_label2: .word 0
1628 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1629 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1630 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1631 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1634 gcc_cv_as_subsections="working .subsection -1"
1639 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1641 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1642 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1643 [Define if your assembler supports .subsection and .subsection -1 starts
1644 emitting at the beginning of your section.])
1646 AC_MSG_RESULT($gcc_cv_as_subsections)
1648 AC_MSG_CHECKING(assembler weak support)
1650 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1651 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1652 gcc_cv_as_weak="yes"
1654 elif test x$gcc_cv_as != x; then
1655 # Check if we have .weak
1656 echo " .weak foobar" > conftest.s
1657 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1658 gcc_cv_as_weak="yes"
1660 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1662 if test x"$gcc_cv_as_weak" = xyes; then
1663 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1665 AC_MSG_RESULT($gcc_cv_as_weak)
1667 AC_MSG_CHECKING(assembler hidden support)
1669 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1670 if test "$gcc_cv_gas_major_version" -eq 2 \
1671 -a "$gcc_cv_gas_minor_version" -eq 12 \
1672 -a "$gcc_cv_gas_patch_version" -ge 1 \
1673 -o "$gcc_cv_gas_major_version" -eq 2 \
1674 -a "$gcc_cv_gas_minor_version" -gt 12 \
1675 -o "$gcc_cv_gas_major_version" -gt 2 \
1676 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1677 gcc_cv_as_hidden="yes"
1679 elif test x$gcc_cv_as != x; then
1680 # Check if we have .hidden
1681 echo " .hidden foobar" > conftest.s
1682 echo "foobar:" >> conftest.s
1683 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1684 gcc_cv_as_hidden="yes"
1686 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1688 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1689 # This is irritatingly difficult to feature test for. Look for
1690 # the date string after the version number.
1691 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1692 if echo "$ld_ver" | grep GNU > /dev/null; then
1694 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([ ].*\|\)$,\1,p'`
1695 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1696 if test 0"$ld_date" -lt 20020404; then
1697 if test -n "$ld_date"; then
1698 # If there was date string, but was earlier than 2002-04-04, fail
1699 gcc_cv_as_hidden="no"
1700 elif test -z "$ld_vers"; then
1701 # If there was no date string nor ld version number, something is wrong
1702 gcc_cv_as_hidden="no"
1704 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1705 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1706 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1707 test -z "$ld_vers_patch" && ld_vers_patch=0
1708 if test "$ld_vers_major" -lt 2; then
1709 gcc_cv_as_hidden="no"
1710 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1711 gcc_cv_as_hidden="no"
1712 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1713 -a "$ld_vers_patch" -eq 0; then
1714 gcc_cv_as_hidden="no"
1721 if test x"$gcc_cv_as_hidden" = xyes; then
1722 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1723 [Define if your assembler supports .hidden.])
1725 AC_MSG_RESULT($gcc_cv_as_hidden)
1726 libgcc_visibility=$gcc_cv_as_hidden
1729 if test x"$gnu_ld_flag" = x"no"; then
1730 # Even if using gas with .hidden support, the resulting object files
1731 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1732 # N64 linkers, the problem is that the linker refuses to accept
1733 # -call_shared (passed by default to the linker) and -r (used to
1734 # link the object file generated without .hidden directives with
1735 # one that hides symbols), so we also lose.
1736 libgcc_visibility=no
1740 AC_SUBST(libgcc_visibility)
1742 AC_MSG_CHECKING(assembler leb128 support)
1744 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1745 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 11 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1746 gcc_cv_as_leb128="yes"
1748 elif test x$gcc_cv_as != x; then
1749 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1750 cat > conftest.s <<EOF
1758 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1759 gcc_cv_as_leb128="yes"
1761 # GAS versions before 2.11 do not support uleb128,
1762 # despite appearing to.
1763 # ??? There exists an elf-specific test that will crash
1764 # the assembler. Perhaps it's better to figure out whether
1765 # arbitrary sections are supported and try the test.
1766 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1767 if echo "$as_ver" | grep GNU > /dev/null; then
1769 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1770 as_major=`echo $as_ver | sed 's/\..*//'`
1771 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1773 if test $as_major -eq 2 -a $as_minor -lt 11; then
1774 gcc_cv_as_leb128="no"
1778 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1780 if test x"$gcc_cv_as_leb128" = xyes; then
1781 AC_DEFINE(HAVE_AS_LEB128, 1,
1782 [Define if your assembler supports .uleb128.])
1784 AC_MSG_RESULT($gcc_cv_as_leb128)
1786 AC_MSG_CHECKING(assembler eh_frame optimization)
1787 gcc_cv_as_eh_frame=no
1788 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1789 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1790 gcc_cv_as_eh_frame="yes"
1792 elif test x$gcc_cv_as != x; then
1793 # Check if this is GAS.
1794 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1795 rm -f a.out 2> /dev/null
1796 if echo "$as_ver" | grep GNU > /dev/null; then
1797 # Versions up to and including 2.11.0 may mis-optimize
1798 # .eh_frame data. Try something.
1799 cat > conftest.s <<EOF
1806 .section .eh_frame,"aw",@progbits
1808 .4byte .LECIE1-.LSCIE1
1822 .4byte .LEFDE1-.LASFDE1
1824 .4byte .LASFDE1-__FRAME_BEGIN__
1833 cat > conftest.lit <<EOF
1834 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1835 0010 01000000 12000000 18000000 00000000 ................
1836 0020 08000000 04080000 0044 .........D
1838 cat > conftest.big <<EOF
1839 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1840 0010 00000001 00000012 00000018 00000000 ................
1841 0020 00000008 04000000 0844 .........D
1843 # If the assembler didn't choke, and we can objdump,
1844 # and we got the correct data, then succeed.
1845 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1846 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1847 | tail -3 > conftest.got \
1848 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1849 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1851 gcc_cv_as_eh_frame="yes"
1853 gcc_cv_as_eh_frame="bad"
1854 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1855 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1856 [Define if your assembler mis-optimizes .eh_frame data.])
1862 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1864 AC_MSG_CHECKING(assembler section merging support)
1865 gcc_cv_as_shf_merge=no
1866 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1867 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1868 gcc_cv_as_shf_merge=yes
1870 elif test x$gcc_cv_as != x; then
1871 # Check if we support SHF_MERGE sections
1872 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1873 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1874 gcc_cv_as_shf_merge=yes
1876 rm -f conftest.s conftest.o
1878 if test x"$gcc_cv_as_shf_merge" = xyes; then
1879 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1880 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1882 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1884 AC_MSG_CHECKING(assembler thread-local storage support)
1893 .section ".tdata","awT",@progbits
1896 ldq $27,__tls_get_addr($29) !literal!1
1897 lda $16,foo($29) !tlsgd!1
1898 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1899 ldq $27,__tls_get_addr($29) !literal!2
1900 lda $16,foo($29) !tlsldm!2
1901 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
1902 ldq $1,foo($29) !gotdtprel
1903 ldah $2,foo($29) !dtprelhi
1904 lda $3,foo($2) !dtprello
1905 lda $4,foo($29) !dtprel
1906 ldq $1,foo($29) !gottprel
1907 ldah $2,foo($29) !tprelhi
1908 lda $3,foo($2) !tprello
1909 lda $4,foo($29) !tprel'
1916 .section ".tdata","awT",@progbits
1920 leal foo@TLSGD(,%ebx,1), %eax
1921 leal foo@TLSLDM(%ebx), %eax
1922 leal foo@DTPOFF(%eax), %edx
1923 movl foo@GOTTPOFF(%ebx), %eax
1924 subl foo@GOTTPOFF(%ebx), %eax
1925 addl foo@GOTNTPOFF(%ebx), %eax
1926 movl foo@INDNTPOFF, %eax
1927 movl $foo@TPOFF, %eax
1928 subl $foo@TPOFF, %eax
1929 leal foo@NTPOFF(%ecx), %eax'
1935 .section ".tdata","awT",@progbits
1939 leaq foo@TLSGD(%rip), %rdi
1940 leaq foo@TLSLD(%rip), %rdi
1941 leaq foo@DTPOFF(%rax), %rdx
1942 movq foo@GOTTPOFF(%rip), %rax
1943 movq $foo@TPOFF, %rax'
1949 .section ".tdata","awT",@progbits
1952 addl r16 = @ltoff(@dtpmod(foo#)), gp
1953 addl r17 = @ltoff(@dtprel(foo#)), gp
1954 addl r18 = @ltoff(@tprel(foo#)), gp
1955 addl r19 = @dtprel(foo#), gp
1956 adds r21 = @dtprel(foo#), r13
1957 movl r23 = @dtprel(foo#)
1958 addl r20 = @tprel(foo#), gp
1959 adds r22 = @tprel(foo#), r13
1960 movl r24 = @tprel(foo#)'
1966 .section ".tdata","awT",@progbits
1975 l %r1,foo@GOTNTPOFF(%r12)
1976 l %r1,0(%r1):tls_load:foo
1977 bas %r14,0(%r1,%r13):tls_gdcall:foo
1978 bas %r14,0(%r1,%r13):tls_ldcall:foo'
1984 .section ".tdata","awT",@progbits
1992 lg %r1,foo@GOTNTPOFF(%r12)
1993 larl %r1,foo@INDNTPOFF
1994 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
1995 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2000 if test -z "$tls_first_major"; then
2002 elif test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
2004 if test "$gcc_cv_gas_major_version" -eq "$tls_first_major" \
2005 -a "$gcc_cv_gas_minor_version" -ge "$tls_first_minor" \
2006 -o "$gcc_cv_gas_major_version" -gt "$tls_first_major"; then
2009 elif test x$gcc_cv_as != x; then
2010 echo "$conftest_s" > conftest.s
2011 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2015 rm -f conftest.s conftest.o
2017 if test "$gcc_cv_as_tls" = yes; then
2018 AC_DEFINE(HAVE_AS_TLS, 1,
2019 [Define if your assembler supports thread-local storage.])
2021 AC_MSG_RESULT($gcc_cv_as_tls)
2024 # All TARGET_ABI_OSF targets.
2025 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2026 AC_CACHE_CHECK([assembler supports explicit relocations],
2027 gcc_cv_as_explicit_relocs, [
2028 gcc_cv_as_explicit_relocs=unknown
2029 if test x$gcc_cv_gas_major_version != x \
2030 -a x$gcc_cv_gas_minor_version != x
2032 if test "$gcc_cv_gas_major_version" -eq 2 \
2033 -a "$gcc_cv_gas_minor_version" -ge 12 \
2034 -o "$gcc_cv_gas_major_version" -gt 2; then
2035 gcc_cv_as_explicit_relocs=yes
2037 elif test x$gcc_cv_as != x; then
2038 cat > conftest.s << 'EOF'
2041 extbl $3, $2, $3 !lituse_bytoff!1
2042 ldq $2, a($29) !literal!1
2043 ldq $4, b($29) !literal!2
2044 ldq_u $3, 0($2) !lituse_base!1
2045 ldq $27, f($29) !literal!5
2046 jsr $26, ($27), f !lituse_jsr!5
2047 ldah $29, 0($26) !gpdisp!3
2048 lda $0, c($29) !gprel
2049 ldah $1, d($29) !gprelhigh
2050 lda $1, d($1) !gprellow
2051 lda $29, 0($29) !gpdisp!3
2053 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2054 gcc_cv_as_explicit_relocs=yes
2056 gcc_cv_as_explicit_relocs=no
2058 rm -f conftest.s conftest.o
2061 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2062 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2063 [Define if your assembler supports explicit relocations.])
2067 AC_CACHE_CHECK([assembler .register pseudo-op support],
2068 gcc_cv_as_register_pseudo_op, [
2069 gcc_cv_as_register_pseudo_op=unknown
2070 if test x$gcc_cv_as != x; then
2071 # Check if we have .register
2072 echo ".register %g2, #scratch" > conftest.s
2073 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2074 gcc_cv_as_register_pseudo_op=yes
2076 gcc_cv_as_register_pseudo_op=no
2078 rm -f conftest.s conftest.o
2081 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2082 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2083 [Define if your assembler supports .register.])
2086 AC_CACHE_CHECK([assembler supports -relax],
2087 gcc_cv_as_relax_opt, [
2088 gcc_cv_as_relax_opt=unknown
2089 if test x$gcc_cv_as != x; then
2090 # Check if gas supports -relax
2091 echo ".text" > conftest.s
2092 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2093 gcc_cv_as_relax_opt=yes
2095 gcc_cv_as_relax_opt=no
2097 rm -f conftest.s conftest.o
2100 if test "x$gcc_cv_as_relax_opt" = xyes; then
2101 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2102 [Define if your assembler supports -relax option.])
2105 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2106 gcc_cv_as_sparc_ua_pcrel, [
2107 gcc_cv_as_sparc_ua_pcrel=unknown
2108 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2109 gcc_cv_as_sparc_ua_pcrel=no
2110 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2111 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2112 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2113 gcc_cv_as_sparc_ua_pcrel=yes
2115 rm -f conftest.s conftest.o conftest
2118 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2119 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2120 [Define if your assembler and linker support unaligned PC relative relocs.])
2123 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2124 gcc_cv_as_sparc_ua_pcrel_hidden, [
2125 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2126 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2127 if test x$gcc_cv_objdump != x; then
2128 gcc_cv_as_sparc_ua_pcrel_hidden=no
2129 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2130 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2131 echo "foo: .skip 4" >> conftest.s
2132 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2133 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2134 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2135 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2136 if $gcc_cv_objdump -R conftest 2> /dev/null \
2137 | grep 'DISP32' > /dev/null 2>&1; then
2140 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2144 rm -f conftest.s conftest.o conftest
2146 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2149 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2150 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2151 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2154 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2155 gcc_cv_as_offsetable_lo10, [
2156 gcc_cv_as_offsetable_lo10=unknown
2157 if test "x$gcc_cv_as" != x; then
2158 # Check if assembler has offsetable %lo()
2159 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2160 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2161 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2163 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2164 > /dev/null 2>&1; then
2165 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2166 gcc_cv_as_offsetable_lo10=no
2168 gcc_cv_as_offsetable_lo10=yes
2171 gcc_cv_as_offsetable_lo10=no
2173 rm -f conftest.s conftest.o conftest1.s conftest1.o
2176 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2177 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2178 [Define if your assembler supports offsetable %lo().])
2184 i[34567]86-*-* | x86_64-*-*)
2186 AC_MSG_CHECKING(assembler instructions)
2187 gcc_cv_as_instructions=
2188 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
2189 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
2190 gcc_cv_as_instructions="filds fists"
2192 elif test x$gcc_cv_as != x; then
2193 set "filds fists" "filds mem; fists mem"
2196 echo "$2" > conftest.s
2197 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2198 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2202 rm -f conftest.s conftest.o
2204 if test x"$gcc_cv_as_instructions" != x; then
2205 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2207 AC_MSG_RESULT($gcc_cv_as_instructions)
2209 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2210 gcc_cv_as_gotoff_in_data=no
2211 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
2213 if test "$gcc_cv_gas_major_version" -eq 2 \
2214 -a "$gcc_cv_gas_minor_version" -ge 11 \
2215 -o "$gcc_cv_gas_major_version" -gt 2; then
2216 gcc_cv_as_gotoff_in_data=yes
2218 elif test x$gcc_cv_as != x; then
2219 cat > conftest.s <<EOF
2226 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2227 gcc_cv_as_gotoff_in_data=yes
2230 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2231 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2232 [Define true if the assembler supports '.long foo@GOTOFF'.])
2233 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2237 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2238 gcc_cv_as_dwarf2_debug_line=no
2239 # ??? Not all targets support dwarf2 debug_line, even within a version
2240 # of gas. Moreover, we need to emit a valid instruction to trigger any
2241 # info to the output file. So, as supported targets are added to gas 2.11,
2242 # add some instruction here to (also) show we expect this might work.
2243 # ??? Once 2.11 is released, probably need to add first known working
2244 # version to the per-target configury.
2246 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2247 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-*)
2254 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2256 if test "$gcc_cv_gas_major_version" -eq 2 \
2257 -a "$gcc_cv_gas_minor_version" -ge 11 \
2258 -o "$gcc_cv_gas_major_version" -gt 2 \
2259 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2260 && test x"$insn" != x ; then
2261 gcc_cv_as_dwarf2_debug_line="yes"
2263 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2264 echo ' .file 1 "conftest.s"' > conftest.s
2265 echo ' .loc 1 3 0' >> conftest.s
2266 echo " $insn" >> conftest.s
2267 # ??? This fails with non-gnu grep.
2268 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2269 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2270 # The .debug_line file table must be in the exact order that
2271 # we specified the files, since these indices are also used
2272 # by DW_AT_decl_file. Approximate this test by testing if
2273 # the assembler bitches if the same index is assigned twice.
2274 echo ' .file 1 "foo.s"' > conftest.s
2275 echo ' .file 1 "bar.s"' >> conftest.s
2276 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2278 gcc_cv_as_dwarf2_debug_line="no"
2280 gcc_cv_as_dwarf2_debug_line="yes"
2283 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2285 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2286 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2287 [Define if your assembler supports dwarf2 .file/.loc directives,
2288 and preserves file table indices exactly as given.])
2290 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2292 AC_MSG_CHECKING(assembler --gdwarf2 support)
2293 gcc_cv_as_gdwarf2_flag=no
2294 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2296 if test "$gcc_cv_gas_major_version" -eq 2 \
2297 -a "$gcc_cv_gas_minor_version" -ge 11 \
2298 -o "$gcc_cv_gas_major_version" -gt 2 \
2299 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2300 && test x"$insn" != x ; then
2301 gcc_cv_as_gdwarf2_flag="yes"
2303 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2304 echo '' > conftest.s
2305 # ??? This fails with non-gnu grep.
2306 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2308 gcc_cv_as_gdwarf2_flag="yes"
2310 rm -f conftest.s conftest.o
2312 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2313 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2314 [Define if your assembler supports the --gdwarf2 option.])
2316 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2318 AC_MSG_CHECKING(assembler --gstabs support)
2319 gcc_cv_as_gstabs_flag=no
2320 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2322 if test "$gcc_cv_gas_major_version" -eq 2 \
2323 -a "$gcc_cv_gas_minor_version" -ge 11 \
2324 -o "$gcc_cv_gas_major_version" -gt 2 \
2325 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2326 && test x"$insn" != x ; then
2327 gcc_cv_as_gstabs_flag="yes"
2329 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2330 echo '' > conftest.s
2331 # ??? This fails with non-gnu grep.
2332 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2333 gcc_cv_as_gstabs_flag="yes"
2335 rm -f conftest.s conftest.o
2337 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2338 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2339 [Define if your assembler supports the --gstabs option.])
2341 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2343 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2344 gcc_cv_ld_ro_rw_mix=unknown
2345 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2346 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2347 gcc_cv_ld_ro_rw_mix=read-write
2349 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2350 echo '.section "myfoosect", "a"' > conftest1.s
2351 echo '.section "myfoosect", "aw"' > conftest2.s
2352 echo '.byte 1' >> conftest2.s
2353 echo '.section "myfoosect", "a"' > conftest3.s
2354 echo '.byte 0' >> conftest3.s
2355 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2356 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2357 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2358 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2359 conftest2.o conftest3.o; then
2360 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2361 | grep -A1 myfoosect`
2362 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2363 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2364 gcc_cv_ld_ro_rw_mix=read-only
2366 gcc_cv_ld_ro_rw_mix=read-write
2371 rm -f conftest.* conftest[123].*
2374 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2375 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2376 [Define if your linker links a mix of read-only
2377 and read-write sections into a read-write section.])
2379 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2381 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2382 gcc_cv_ld_eh_frame_hdr=no
2383 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2384 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2385 gcc_cv_ld_eh_frame_hdr=yes
2387 elif test x$gcc_cv_ld != x; then
2388 # Check if linker supports --eh-frame-hdr option
2389 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2390 gcc_cv_ld_eh_frame_hdr=yes
2393 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2394 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2395 [Define if your linker supports --eh-frame-hdr option.])
2397 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2399 # Miscellaneous target-specific checks.
2402 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2403 gcc_cv_mips_libgloss_startup=no
2404 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2405 if test "x$exec_prefix" = xNONE; then
2406 if test "x$prefix" = xNONE; then
2407 test_prefix=/usr/local
2412 test_prefix=$exec_prefix
2414 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2416 if grep '^STARTUP' $f > /dev/null 2>&1; then
2417 gcc_cv_mips_libgloss_startup=yes
2421 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2422 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2423 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2425 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2429 if test x$with_sysroot = x && test x$host = x$target \
2430 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2431 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2434 # Figure out what language subdirectories are present.
2435 # Look if the user specified --enable-languages="..."; if not, use
2436 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2438 # NB: embedded tabs in this IF block -- do not untabify
2439 if test x"${enable_languages+set}" != xset; then
2440 if test x"${LANGUAGES+set}" = xset; then
2441 enable_languages="${LANGUAGES}"
2442 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2445 enable_languages=all
2448 if test x"${enable_languages}" = x \
2449 || test x"${enable_languages}" = xyes;
2451 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2454 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2456 # First scan to see if an enabled language requires some other language.
2457 # We assume that a given config-lang.in will list all the language
2458 # front ends it requires, even if some are required indirectly.
2459 for lang in ${srcdir}/*/config-lang.in ..
2464 # The odd quoting in the next line works around
2465 # an apparent bug in bash 1.12 on linux.
2467 ${srcdir}/[*]/config-lang.in)
2470 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2471 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2472 for other in $this_lang_requires
2474 case ,${enable_languages}, in
2480 enable_languages="$enable_languages,$other"
2489 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2492 for lang in ${srcdir}/*/config-lang.in ..
2496 # The odd quoting in the next line works around
2497 # an apparent bug in bash 1.12 on linux.
2499 ${srcdir}/[*]/config-lang.in) ;;
2501 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2502 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2503 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2504 if test "x$lang_alias" = x
2506 echo "$lang doesn't set \$language." 1>&2
2509 case ${build_by_default},${enable_languages}, in
2510 *,$lang_alias,*) add_this_lang=yes ;;
2511 no,*) add_this_lang=no ;;
2512 *,all,*) add_this_lang=yes ;;
2513 *) add_this_lang=no ;;
2515 found_languages="${found_languages} ${lang_alias}"
2516 if test x"${add_this_lang}" = xyes; then
2518 ${srcdir}/ada/config-lang.in)
2519 if test x$have_gnat = xyes ; then
2520 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2524 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2534 for expected_language in ${expected_languages} ..
2536 if test "${expected_language}" != ..; then
2537 missing_language="${expected_language}"
2538 if test "${expected_language}" = "c" \
2539 || test "${expected_language}" = "all"; then
2542 for found_language in ${found_languages} ..
2544 if test "${found_language}" != ..; then
2545 if test "${expected_language}" = "${found_language}"; then
2550 if test "x${missing_language}" != x; then
2551 missing_languages="${missing_languages} ${missing_language}"
2556 if test "x$missing_languages" != x; then
2558 The following requested languages were not found:${missing_languages}
2559 The following languages were available: c${found_languages}])
2562 # Make gthr-default.h if we have a thread file.
2564 if test $thread_file != single; then
2565 rm -f gthr-default.h
2566 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2567 gthread_flags=-DHAVE_GTHR_DEFAULT
2569 AC_SUBST(gthread_flags)
2571 # Find out what GC implementation we want, or may, use.
2573 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2580 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2585 echo "Using $GGC for garbage collection."
2587 # Use the system's zlib library.
2589 zlibinc="-I\$(srcdir)/../zlib"
2590 AC_ARG_WITH(system-zlib,
2591 [ --with-system-zlib use installed libz],
2598 dnl Very limited version of automake's enable-maintainer-mode
2600 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2601 dnl maintainer-mode is disabled by default
2602 AC_ARG_ENABLE(maintainer-mode,
2603 [ --enable-maintainer-mode
2604 enable make rules and dependencies not useful
2605 (and sometimes confusing) to the casual installer],
2606 maintainer_mode=$enableval,
2609 AC_MSG_RESULT($maintainer_mode)
2611 if test "$maintainer_mode" = "yes"; then
2618 # Make empty files to contain the specs and options for each language.
2619 # Then add #include lines to for a compiler that has specs and/or options.
2624 for subdir in . $subdirs
2626 if test -f $srcdir/$subdir/lang-specs.h; then
2627 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2629 if test -f $srcdir/$subdir/lang-options.h; then
2630 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2632 if test -f $srcdir/$subdir/$subdir-tree.def; then
2633 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2637 # These (without "all_") are set in each config-lang.in.
2638 # `language' must be a single word so is spelled singularly.
2643 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2644 # List of language makefile fragments.
2646 # Files for gengtype
2647 all_gtfiles="$target_gtfiles"
2648 # Files for gengtype with language
2649 all_gtfiles_files_langs=
2650 all_gtfiles_files_files=
2652 # Add the language fragments.
2653 # Languages are added via two mechanisms. Some information must be
2654 # recorded in makefile variables, these are defined in config-lang.in.
2655 # We accumulate them and plug them into the main Makefile.
2656 # The other mechanism is a set of hooks for each of the main targets
2657 # like `clean', `install', etc.
2659 language_fragments="Make-lang"
2660 language_hooks="Make-hooks"
2662 for s in .. $subdirs
2672 . ${srcdir}/$s/config-lang.in
2673 if test "x$language" = x
2675 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2678 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2679 if test -f ${srcdir}/$s/Makefile.in
2680 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2682 all_languages="$all_languages $language"
2683 if test "x$boot_language" = xyes
2685 all_boot_languages="$all_boot_languages $language"
2687 all_compilers="$all_compilers $compilers"
2688 all_stagestuff="$all_stagestuff $stagestuff"
2689 all_outputs="$all_outputs $outputs"
2690 all_gtfiles="$all_gtfiles $gtfiles"
2691 for f in .. $gtfiles
2695 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2696 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2702 # Pick up gtfiles for c
2705 . ${srcdir}/c-config-lang.in
2706 all_gtfiles="$all_gtfiles $gtfiles"
2707 for f in .. $gtfiles
2711 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2712 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2717 for language in .. $all_languages
2719 if test $language != ".."
2721 check_languages="$check_languages check-$language"
2725 # Since we can't use `::' targets, we link each language in
2726 # with a set of hooks, reached indirectly via lang.${target}.
2730 target_list="all.build all.cross start.encap rest.encap \
2731 info dvi generated-manpages \
2732 install-normal install-common install-info install-man \
2734 mostlyclean clean distclean extraclean maintainer-clean \
2735 stage1 stage2 stage3 stage4"
2736 for t in $target_list
2739 for lang in .. $all_languages
2741 if test $lang != ".."; then
2745 echo "lang.$t: $x" >> Make-hooks
2750 echo "dir ." > .gdbinit
2751 echo "dir ${srcdir}" >> .gdbinit
2752 if test x$gdb_needs_out_file_path = xyes
2754 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2756 if test "x$subdirs" != x; then
2759 echo "dir ${srcdir}/$s" >> .gdbinit
2762 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2764 # Define variables host_canonical and build_canonical
2765 # because some Cygnus local changes in the Makefile depend on them.
2766 build_canonical=${build}
2767 host_canonical=${host}
2769 if test "${host}" != "${target}" ; then
2770 target_subdir=${target_alias}/
2772 AC_SUBST(build_canonical)
2773 AC_SUBST(host_canonical)
2774 AC_SUBST(target_subdir)
2776 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2777 # absolute path for gcc_tooldir based on inserting the number of up-directory
2778 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2779 # $(libsubdir)/@(unlibsubdir) based path.
2780 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2781 # make and thus we'd get different behavior depending on where we built the
2783 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2784 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2786 changequote(<<, >>)dnl
2787 # An explanation of the sed strings:
2788 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2789 # -e 's|/$||' match a trailing forward slash and eliminates it
2790 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2791 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2793 # (*) Note this pattern overwrites the first character of the string
2794 # with a forward slash if one is not already present. This is not a
2795 # problem because the exact names of the sub-directories concerned is
2796 # unimportant, just the number of them matters.
2798 # The practical upshot of these patterns is like this:
2800 # prefix exec_prefix result
2801 # ------ ----------- ------
2803 # /foo/ /foo/bar ../
2804 # /foo /foo/bar/ ../
2805 # /foo/ /foo/bar/ ../
2806 # /foo /foo/bar/ugg ../../
2809 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2810 changequote([, ])dnl
2812 AC_SUBST(gcc_tooldir)
2815 # Find a directory in which to install a shared libgcc.
2817 AC_ARG_ENABLE(version-specific-runtime-libs,
2818 [ --enable-version-specific-runtime-libs
2819 specify that runtime libraries should be
2820 installed in a compiler-specific directory])
2822 AC_ARG_WITH(slibdir,
2823 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2824 slibdir="$with_slibdir",
2825 if test "${enable_version_specific_runtime_libs+set}" = set; then
2826 slibdir='$(libsubdir)'
2827 elif test "$host" != "$target"; then
2828 slibdir='$(build_tooldir)/lib'
2834 objdir=`${PWDCMD-pwd}`
2837 # Process the language and host/target makefile fragments.
2838 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2840 # Substitute configuration variables
2843 AC_SUBST(all_boot_languages)
2844 AC_SUBST(all_compilers)
2845 AC_SUBST(all_gtfiles)
2846 AC_SUBST(all_gtfiles_files_langs)
2847 AC_SUBST(all_gtfiles_files_files)
2848 AC_SUBST(all_lang_makefiles)
2849 AC_SUBST(all_languages)
2850 AC_SUBST(all_stagestuff)
2851 AC_SUBST(build_exeext)
2852 AC_SUBST(build_install_headers_dir)
2853 AC_SUBST(build_xm_file_list)
2854 AC_SUBST(build_xm_file)
2855 AC_SUBST(build_xm_defines)
2856 AC_SUBST(check_languages)
2857 AC_SUBST(cc_set_by_configure)
2858 AC_SUBST(quoted_cc_set_by_configure)
2859 AC_SUBST(cpp_install_dir)
2860 AC_SUBST(dep_host_xmake_file)
2861 AC_SUBST(dep_tmake_file)
2862 AC_SUBST(extra_headers_list)
2863 AC_SUBST(extra_objs)
2864 AC_SUBST(extra_parts)
2865 AC_SUBST(extra_passes)
2866 AC_SUBST(extra_programs)
2867 AC_SUBST(float_h_file)
2868 AC_SUBST(gcc_config_arguments)
2869 AC_SUBST(gcc_gxx_include_dir)
2870 AC_SUBST(libstdcxx_incdir)
2871 AC_SUBST(gcc_version)
2872 AC_SUBST(gcc_version_full)
2873 AC_SUBST(gcc_version_trigger)
2874 AC_SUBST(host_exeext)
2875 AC_SUBST(host_extra_gcc_objs)
2876 AC_SUBST(host_xm_file_list)
2877 AC_SUBST(host_xm_file)
2878 AC_SUBST(host_xm_defines)
2879 AC_SUBST(out_host_hook_obj)
2881 AC_SUBST(lang_options_files)
2882 AC_SUBST(lang_specs_files)
2883 AC_SUBST(lang_tree_files)
2884 AC_SUBST(local_prefix)
2886 AC_SUBST(objc_boehm_gc)
2888 AC_SUBST(out_object_file)
2889 AC_SUBST(stage_prefix_set_by_configure)
2890 AC_SUBST(quoted_stage_prefix_set_by_configure)
2891 AC_SUBST(symbolic_link)
2892 AC_SUBST(thread_file)
2893 AC_SUBST(tm_file_list)
2895 AC_SUBST(tm_defines)
2896 AC_SUBST(tm_p_file_list)
2899 AC_SUBST(xm_defines)
2900 AC_SUBST(target_alias)
2901 AC_SUBST(c_target_objs)
2902 AC_SUBST(cxx_target_objs)
2903 AC_SUBST(target_cpu_default)
2905 AC_SUBST_FILE(target_overrides)
2906 AC_SUBST_FILE(host_overrides)
2907 AC_SUBST_FILE(language_fragments)
2908 AC_SUBST_FILE(language_hooks)
2910 # Echo that links are built
2911 if test x$host = x$target
2919 if test x$host != x$build
2921 str3=" on a $build system"
2924 if test "x$str2" != x || test "x$str3" != x
2929 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2931 if test "x$str2" != x || test "x$str3" != x
2933 echo " ${str2}${str3}." 1>&2
2936 # Truncate the target if necessary
2937 if test x$host_truncate_target != x; then
2938 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2941 # Configure the subdirectories
2942 # AC_CONFIG_SUBDIRS($subdirs)
2944 # Create the Makefile
2945 # and configure language subdirectories
2946 AC_OUTPUT($all_outputs,
2948 case x$CONFIG_HEADERS in
2949 xauto-host.h:config.in)
2952 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2953 # bootstrapping and the installation procedure can still use
2954 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2955 # FLAGS_TO_PASS has been modified to solve the problem there.
2956 # This is virtually a duplicate of what happens in configure.lang; we do
2957 # an extra check to make sure this only happens if ln -s can be used.
2958 if test "$symbolic_link" = "ln -s"; then
2959 for d in .. ${subdirs} fixinc ; do
2960 if test $d != ..; then
2961 STARTDIR=`${PWDCMD-pwd}`
2963 for t in stage1 stage2 stage3 stage4 include
2966 $symbolic_link ../$t $t 2>/dev/null
2972 # Avoid having to add intl to our include paths.
2973 if test -f intl/libintl.h; then
2974 echo creating libintl.h
2975 echo '#include "intl/libintl.h"' >libintl.h
2979 symbolic_link='$symbolic_link'