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 # Define variables host_canonical and build_canonical
36 build_canonical=${build}
37 host_canonical=${host}
38 AC_SUBST(build_canonical)
39 AC_SUBST(host_canonical)
42 if test "${host}" != "${target}" ; then
43 target_subdir=${target_alias}/
45 AC_SUBST(target_subdir)
47 # Set program_transform_name
50 # Check for bogus environment variables.
51 # Test if LIBRARY_PATH contains the notation for the current directory
52 # since this would lead to problems installing/building glibc.
53 # LIBRARY_PATH contains the current directory if one of the following
55 # - one of the terminals (":" and ";") is the first or last sign
56 # - two terminals occur directly after each other
57 # - the path contains an element with a dot in it
58 AC_MSG_CHECKING(LIBRARY_PATH variable)
60 case ${LIBRARY_PATH} in
61 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
62 library_path_setting="contains current directory"
65 library_path_setting="ok"
69 AC_MSG_RESULT($library_path_setting)
70 if test "$library_path_setting" != "ok"; then
72 *** LIBRARY_PATH shouldn't contain the current directory when
73 *** building gcc. Please change the environment variable
74 *** and run configure again.])
77 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
78 # since this would lead to problems installing/building glibc.
79 # GCC_EXEC_PREFIX contains the current directory if one of the following
81 # - one of the terminals (":" and ";") is the first or last sign
82 # - two terminals occur directly after each other
83 # - the path contains an element with a dot in it
84 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
86 case ${GCC_EXEC_PREFIX} in
87 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
88 gcc_exec_prefix_setting="contains current directory"
91 gcc_exec_prefix_setting="ok"
95 AC_MSG_RESULT($gcc_exec_prefix_setting)
96 if test "$gcc_exec_prefix_setting" != "ok"; then
98 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
99 *** building gcc. Please change the environment variable
100 *** and run configure again.])
107 # Specify the local prefix
109 AC_ARG_WITH(local-prefix,
110 [ --with-local-prefix=DIR specifies directory to put local include],
111 [case "${withval}" in
112 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
114 *) local_prefix=$with_local_prefix ;;
117 # Default local prefix if it is empty
118 if test x$local_prefix = x; then
119 local_prefix=/usr/local
122 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
123 # passed in by the toplevel make and thus we'd get different behavior
124 # depending on where we built the sources.
126 # Specify the g++ header file directory
127 AC_ARG_WITH(gxx-include-dir,
128 [ --with-gxx-include-dir=DIR
129 specifies directory to put g++ header files],
130 [case "${withval}" in
131 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
133 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
136 if test x${gcc_gxx_include_dir} = x; then
137 if test x${enable_version_specific_runtime_libs} = xyes; then
138 gcc_gxx_include_dir='${libsubdir}/include/c++'
140 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
141 changequote(<<, >>)dnl
142 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
147 AC_ARG_WITH(cpp_install_dir,
148 [ --with-cpp-install-dir=DIR
149 install the user visible C preprocessor in DIR
150 (relative to PREFIX) as well as PREFIX/bin],
151 [if test x$withval = xyes; then
152 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
153 elif test x$withval != xno; then
154 cpp_install_dir=$withval
157 # -------------------
158 # Find default linker
159 # -------------------
163 [ --with-gnu-ld arrange to work with GNU ld.],
164 gnu_ld_flag="$with_gnu_ld",
167 # With pre-defined ld
169 [ --with-ld arrange to use the specified ld (full pathname)],
170 DEFAULT_LINKER="$with_ld")
171 if test x"${DEFAULT_LINKER+set}" = x"set"; then
172 if test ! -x "$DEFAULT_LINKER"; then
173 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
174 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
177 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
178 [Define to enable the use of a default linker.])
181 AC_MSG_CHECKING([whether a default linker was specified])
182 if test x"${DEFAULT_LINKER+set}" = x"set"; then
183 if test x"$gnu_ld_flag" = x"no"; then
184 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
186 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
192 # ----------------------
193 # Find default assembler
194 # ----------------------
198 [ --with-gnu-as arrange to work with GNU as],
199 gas_flag="$with_gnu_as",
203 [ --with-as arrange to use the specified as (full pathname)],
204 DEFAULT_ASSEMBLER="$with_as")
205 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
206 if test ! -x "$DEFAULT_ASSEMBLER"; then
207 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
208 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
211 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
212 [Define to enable the use of a default assembler.])
215 AC_MSG_CHECKING([whether a default assembler was specified])
216 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
217 if test x"$gas_flag" = x"no"; then
218 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
220 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
230 # Find the native compiler
233 # autoconf is lame and doesn't give us any substitution variable for this.
234 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
235 NO_MINUS_C_MINUS_O=yes
237 OUTPUT_OPTION='-o $@'
239 AC_SUBST(NO_MINUS_C_MINUS_O)
240 AC_SUBST(OUTPUT_OPTION)
242 # -------------------------
243 # Check C compiler features
244 # -------------------------
246 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
247 ac_cv_prog_cc_no_long_long,
248 [save_CFLAGS="$CFLAGS"
249 CFLAGS="-Wno-long-long"
250 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
251 ac_cv_prog_cc_no_long_long=no)
252 CFLAGS="$save_CFLAGS"])
262 # sizeof(char) is 1 by definition.
263 AC_COMPILE_CHECK_SIZEOF(short)
264 AC_COMPILE_CHECK_SIZEOF(int)
265 AC_COMPILE_CHECK_SIZEOF(long)
266 if test $ac_cv_c_long_long = yes; then
267 AC_COMPILE_CHECK_SIZEOF(long long)
269 if test $ac_cv_c___int64 = yes; then
270 AC_COMPILE_CHECK_SIZEOF(__int64)
279 # See if GNAT has been installed
282 if test x$have_gnat != xno ; then
283 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
284 ac_cv_prog_adac_no_long_long,
285 [cat >conftest.adb <<EOF
286 procedure conftest is begin null; end conftest;
288 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
289 ac_cv_prog_adac_no_long_long=yes
291 ac_cv_prog_adac_no_long_long=no
295 ac_cv_prog_adac_no_long_long=yes
298 # ---------------------
299 # Warnings and checking
300 # ---------------------
303 if test $ac_cv_prog_cc_no_long_long = yes && \
304 test $ac_cv_prog_adac_no_long_long = yes ; then
305 strict1_warn="-pedantic -Wno-long-long"
307 AC_SUBST(strict1_warn)
309 # If the native compiler is GCC, we can enable warnings even in stage1.
310 # That's useful for people building cross-compilers, or just running a
313 if test "x$GCC" = "xyes"; then
314 warn_cflags='$(GCC_WARN_CFLAGS)'
316 AC_SUBST(warn_cflags)
318 # Enable -Werror in bootstrap stage2 and later.
319 # Change the default to "no" on release branches.
320 AC_ARG_ENABLE(werror,
321 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
323 if test x$enable_werror = xyes ; then
328 # Enable expensive internal checks
329 AC_ARG_ENABLE(checking,
330 [ --enable-checking[=LIST]
331 enable expensive run-time checks. With LIST,
332 enable only specific categories of checks.
333 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
334 default is misc,tree,gc,rtlflag],
340 ac_gc_always_collect=
341 case "${enableval}" in
342 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
343 ac_rtlflag_checking=1 ;;
345 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
346 set fnord $enableval; shift
351 misc) ac_checking=1 ;;
352 tree) ac_tree_checking=1 ;;
353 rtlflag) ac_rtlflag_checking=1 ;;
354 rtl) ac_rtl_checking=1 ;;
355 gc) ac_gc_checking=1 ;;
356 gcac) ac_gc_always_collect=1 ;;
357 valgrind) ac_checking_valgrind=1 ;;
358 *) AC_MSG_ERROR(unknown check category $check) ;;
364 # Enable some checks by default for development versions of GCC
365 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
367 if test x$ac_checking != x ; then
368 AC_DEFINE(ENABLE_CHECKING, 1,
369 [Define if you want more run-time sanity checks. This one gets a grab
370 bag of miscellaneous but relatively cheap checks.])
371 nocommon_flag=-fno-common
373 AC_SUBST(nocommon_flag)
374 if test x$ac_tree_checking != x ; then
375 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
376 [Define if you want all operations on trees (the basic data
377 structure of the front ends) to be checked for dynamic type safety
378 at runtime. This is moderately expensive.])
380 if test x$ac_rtl_checking != x ; then
381 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
382 [Define if you want all operations on RTL (the basic data structure
383 of the optimizer and back end) to be checked for dynamic type safety
384 at runtime. This is quite expensive.])
386 if test x$ac_rtlflag_checking != x ; then
387 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
388 [Define if you want RTL flag accesses to be checked against the RTL
389 codes that are supported for each access macro. This is relatively
392 if test x$ac_gc_checking != x ; then
393 AC_DEFINE(ENABLE_GC_CHECKING, 1,
394 [Define if you want the garbage collector to do object poisoning and
395 other memory allocation checks. This is quite expensive.])
397 if test x$ac_gc_always_collect != x ; then
398 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
399 [Define if you want the garbage collector to operate in maximally
400 paranoid mode, validating the entire heap and collecting garbage at
401 every opportunity. This is extremely expensive.])
403 valgrind_path_defines=
405 if test x$ac_checking_valgrind != x ; then
406 # It is certainly possible that there's valgrind but no valgrind.h.
407 # GCC relies on making annotations so we must have both.
408 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
410 [#include <memcheck.h>
411 #ifndef VALGRIND_DISCARD
412 #error VALGRIND_DISCARD not defined
414 [gcc_cv_header_memcheck_h=yes],
415 gcc_cv_header_memcheck_h=no)
416 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
417 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
418 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
419 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
420 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
421 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
423 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
424 valgrind_command="$valgrind_path -q"
425 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
426 [Define if you want to run subprograms and generated programs
427 through valgrind (a memory checker). This is extremely expensive.])
428 if test $gcc_cv_header_memcheck_h = yes; then
429 AC_DEFINE(HAVE_MEMCHECK_H, 1,
430 [Define if valgrind's memcheck.h header is installed.])
433 AC_SUBST(valgrind_path_defines)
434 AC_SUBST(valgrind_command)
436 # Enable code coverage collection
437 AC_ARG_ENABLE(coverage,
438 [ --enable-coverage[=LEVEL]
439 enable compiler\'s code coverage collection.
440 Use to measure compiler performance and locate
441 unused parts of the compiler. With LEVEL, specify
442 optimization. Values are opt, noopt,
444 [case "${enableval}" in
446 coverage_flags="-fprofile-arcs -ftest-coverage -O0 -DSELF_COVERAGE=1"
449 coverage_flags="-fprofile-arcs -ftest-coverage -O2 -DSELF_COVERAGE=2"
452 AC_MSG_ERROR(unknown coverage setting $enableval)
456 AC_SUBST(coverage_flags)
458 # -------------------------------
459 # Miscenalleous configure options
460 # -------------------------------
464 [ --with-stabs arrange to use stabs instead of host debug format],
470 [ --with-elf arrange to use ELF instead of host debug format],
474 # Determine whether or not multilibs are enabled.
475 AC_ARG_ENABLE(multilib,
476 [ --enable-multilib enable library support for multiple ABIs],
477 [], [enable_multilib=yes])
478 AC_SUBST(enable_multilib)
480 # Enable __cxa_atexit for C++.
481 AC_ARG_ENABLE(__cxa_atexit,
482 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
485 # Enable Multibyte Characters for C/C++
486 AC_ARG_ENABLE(c-mbchar,
487 [ --enable-c-mbchar enable multibyte characters for C and C++],
488 if test x$enable_c_mbchar != xno; then
489 AC_DEFINE(MULTIBYTE_CHARS, 1,
490 [Define if you want the C and C++ compilers to support multibyte
491 character sets for source code.])
495 # Pass with no value to take the default
496 # Pass with a value to specify a thread package
497 AC_ARG_ENABLE(threads,
498 [ --enable-threads enable thread usage for target GCC
499 --enable-threads=LIB use LIB thread package for target GCC],,
502 enable_threads_flag=$enable_threads
503 # Check if a valid thread package
504 case x${enable_threads_flag} in
507 target_thread_file='single'
511 target_thread_file=''
513 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
514 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
515 target_thread_file=$enable_threads_flag
518 echo "$enable_threads is an unknown thread package" 1>&2
523 AC_ARG_ENABLE(objc-gc,
524 [ --enable-objc-gc enable the use of Boehm's garbage collector with
525 the GNU Objective-C runtime],
526 if test x$enable_objc_gc = xno; then
534 [ --with-dwarf2 force the default debug format to be DWARF 2],
535 dwarf2="$with_dwarf2",
538 AC_ARG_ENABLE(shared,
539 [ --disable-shared don't provide a shared libgcc],
541 case $enable_shared in
545 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
546 for pkg in $enableval; do
547 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
554 ], [enable_shared=yes])
555 AC_SUBST(enable_shared)
558 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
560 case ${with_sysroot} in
561 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
562 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
565 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
566 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
568 if test "x$exec_prefix" = xNONE; then
569 if test "x$prefix" = xNONE; then
570 test_prefix=/usr/local
575 test_prefix=$exec_prefix
577 case ${TARGET_SYSTEM_ROOT} in
578 "${test_prefix}"|"${test_prefix}/"*|\
579 '${exec_prefix}'|'${exec_prefix}/'*)
580 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
581 TARGET_SYSTEM_ROOT_DEFINE="$t"
586 TARGET_SYSTEM_ROOT_DEFINE=
587 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
589 AC_SUBST(TARGET_SYSTEM_ROOT)
590 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
591 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
593 # -------------------------
594 # Checks for other programs
595 # -------------------------
599 # Find some useful tools
606 # See if we have the mktemp command.
607 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
609 # Do we have a single-tree copy of texinfo?
610 if test -f $srcdir/../texinfo/Makefile.in; then
611 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
612 gcc_cv_prog_makeinfo_modern=yes
613 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
615 # See if makeinfo has been installed and is modern enough
616 # that we can use it.
617 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
618 [GNU texinfo.* \([0-9][0-9.]*\)],
622 if test $gcc_cv_prog_makeinfo_modern = no; then
624 *** Makeinfo is missing or too old.
625 *** Info documentation will not be built.])
628 BUILD_INFO=info AC_SUBST(BUILD_INFO)
631 # Is pod2man recent enough to regenerate manpages?
632 AC_MSG_CHECKING([for recent Pod::Man])
633 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
635 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
641 # 'make compare' can be significantly faster, if cmp itself can
642 # skip bytes instead of using tail. The test being performed is
643 # "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
644 # but we need to sink errors and handle broken shells.
645 AC_MSG_CHECKING([for cmp's capabilities])
648 if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
649 if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
650 make_compare_target=slowcompare
652 make_compare_target=gnucompare
655 make_compare_target=slowcompare
658 AC_SUBST(make_compare_target)
659 AC_MSG_RESULT($make_compare_target)
662 dnl Don't use AC_PROG_LEX; we insist on flex.
663 dnl LEXLIB is not useful in gcc.
664 if test -f $srcdir/../flex/skel.c; then
665 FLEX='$(objdir)/../flex/flex'
667 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
671 # The -L switch is so bison can find its skeleton file.
672 if test -f $srcdir/../bison/bison.simple; then
673 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
675 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
678 # --------------------
679 # Checks for C headers
680 # --------------------
682 AC_MSG_CHECKING(for GNU C library)
683 AC_CACHE_VAL(gcc_cv_glibc,
685 [#include <features.h>],[
686 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
687 #error Not a GNU C library system
691 AC_MSG_RESULT($gcc_cv_glibc)
692 if test $gcc_cv_glibc = yes; then
693 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
698 gcc_AC_HEADER_STDBOOL
701 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
702 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
703 sys/resource.h sys/param.h sys/times.h sys/stat.h \
704 direct.h malloc.h langinfo.h ldfcn.h wchar.h)
706 # Check for thread headers.
707 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
708 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
710 # These tests can't be done till we know if we have limits.h.
718 # Stage specific cflags for build.
724 stage1_cflags="-Wa,-J"
730 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
731 # sources; use -no-cpp-precomp to get to GNU cpp.
732 # Apple's GCC has bugs in designated initializer handling, so disable
734 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
737 AC_SUBST(stage1_cflags)
739 # These libraries may be used by collect2.
740 # We may need a special search path to get them linked.
741 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
743 for libs in '' -lld -lmld \
744 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
745 '-L/usr/lib/cmplrs/cc3.11 -lmld'
748 AC_TRY_LINK_FUNC(ldopen,
749 [gcc_cv_collect2_libs="$libs"; break])
752 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
753 case $gcc_cv_collect2_libs in
755 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
757 AC_SUBST(COLLECT2_LIBS)
759 # When building Ada code on Alpha, we need exc_resume which is usually in
760 # -lexc. So test for it.
763 AC_SEARCH_LIBS(exc_resume, exc)
766 AC_SUBST(GNAT_LIBEXC)
768 # Some systems put ldexp and frexp in libm instead of libc; assume
769 # they're both in the same place. jcf-dump needs them.
772 AC_SEARCH_LIBS(ldexp, m)
777 # See if the stage1 system preprocessor understands the ANSI C
778 # preprocessor stringification operator. (Used by symcat.h.)
781 # Use <inttypes.h> only if it exists,
782 # doesn't clash with <sys/types.h>, and declares intmax_t.
783 AC_MSG_CHECKING(for inttypes.h)
784 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
786 [#include <sys/types.h>
787 #include <inttypes.h>],
789 [gcc_cv_header_inttypes_h=yes],
790 gcc_cv_header_inttypes_h=no)])
791 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
792 if test $gcc_cv_header_inttypes_h = yes; then
793 AC_DEFINE(HAVE_INTTYPES_H, 1,
794 [Define if you have a working <inttypes.h> header file.])
797 dnl Disabled until we have a complete test for buggy enum bitfields.
798 dnl gcc_AC_C_ENUM_BF_UNSIGNED
800 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
801 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
802 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
803 scandir alphasort gettimeofday mbstowcs wcswidth mmap)
805 if test x$ac_cv_func_mbstowcs = xyes; then
806 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
807 [ AC_TRY_RUN([#include <stdlib.h>
813 gcc_cv_func_mbstowcs_works=yes,
814 gcc_cv_func_mbstowcs_works=no,
815 gcc_cv_func_mbstowcs_works=yes)])
816 if test x$gcc_cv_func_mbstowcs_works = xyes; then
817 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
818 [Define this macro if mbstowcs does not crash when its
819 first argument is NULL.])
823 AC_CHECK_TYPE(ssize_t, int)
825 # Try to determine the array type of the second argument of getgroups
826 # for the target system (int or gid_t).
828 if test "${target}" = "${build}"; then
829 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
832 # This condition may need some tweaking. It should include all
833 # targets where the array type of the second argument of getgroups
834 # is int and the type of gid_t is not equivalent to int.
835 *-*-sunos* | *-*-ultrix*)
836 TARGET_GETGROUPS_T=int
839 TARGET_GETGROUPS_T=gid_t
843 AC_SUBST(TARGET_GETGROUPS_T)
845 gcc_AC_FUNC_PRINTF_PTR
846 gcc_AC_FUNC_MMAP_BLACKLIST
851 *** UWIN may not be used as a host platform because
852 *** linking with posix.dll is not allowed by the GNU GPL])
855 # Under VMS, vfork works very different than on Unix. The standard test
856 # won't work, and it isn't easily adaptable. It makes more sense to
858 ac_cv_func_vfork_works=yes
865 # We will need to find libiberty.h and ansidecl.h
866 saved_CFLAGS="$CFLAGS"
867 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
868 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
869 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
870 fprintf_unlocked strstr errno vasprintf \
871 malloc realloc calloc free basename getopt clock, , ,[
872 #include "ansidecl.h"
873 #include "system.h"])
875 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
876 #include "ansidecl.h"
878 #ifdef HAVE_SYS_RESOURCE_H
879 #include <sys/resource.h>
884 #include "ansidecl.h"
886 #ifdef HAVE_SYS_RESOURCE_H
887 #include <sys/resource.h>
889 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
890 [Define to \`long' if <sys/resource.h> doesn't define.])])
892 gcc_AC_CHECK_DECLS(ldgetname, , ,[
893 #include "ansidecl.h"
900 gcc_AC_CHECK_DECLS(times, , ,[
901 #include "ansidecl.h"
903 #ifdef HAVE_SYS_TIMES_H
904 #include <sys/times.h>
908 # More time-related stuff.
909 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
911 #include "ansidecl.h"
913 #ifdef HAVE_SYS_TIMES_H
914 #include <sys/times.h>
916 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
917 if test $ac_cv_struct_tms = yes; then
918 AC_DEFINE(HAVE_STRUCT_TMS, 1,
919 [Define if <sys/times.h> defines struct tms.])
922 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
923 # revisit after autoconf 2.50.
924 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
926 #include "ansidecl.h"
928 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
929 if test $gcc_cv_type_clock_t = yes; then
930 AC_DEFINE(HAVE_CLOCK_T, 1,
931 [Define if <time.h> defines clock_t.])
934 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
936 #include "ansidecl.h"
939 [if ((uchar *)0) return 0;
940 if (sizeof(uchar)) return 0;],
941 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
942 if test $ac_cv_type_uchar = yes; then
943 AC_DEFINE(HAVE_UCHAR, 1,
944 [Define if <sys/types.h> defines \`uchar'.])
947 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
948 CFLAGS="$saved_CFLAGS"
950 gcc_AC_INITFINI_ARRAY
952 # mkdir takes a single argument on some systems.
953 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
961 # With Setjmp/Longjmp based exception handling.
962 AC_ARG_ENABLE(sjlj-exceptions,
963 [ --enable-sjlj-exceptions
964 arrange to use setjmp/longjmp exception handling],
965 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
966 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
967 [Define 0/1 to force the choice for exception handling model.])])
969 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
970 # Use libunwind based exception handling.
971 AC_ARG_ENABLE(libunwind-exceptions,
972 [ --enable-libunwind-exceptions force use libunwind for exceptions],
973 use_libunwind_exceptions=$enableval,
974 use_libunwind_exceptions=$use_libunwind_default)
975 if test x"$use_libunwind_exceptions" = xyes; then
976 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
977 [Define if gcc should use -lunwind.])
980 # --------------------------------------------------------
981 # Build, host, and target specific configuration fragments
982 # --------------------------------------------------------
987 build_install_headers_dir=install-headers-tar
992 host_truncate_target=
995 # Decode the host machine, then the target machine.
996 # For the host machine, we save the xm_file variable as host_xm_file;
997 # then we decode the target machine and forget everything else
998 # that came from the host machine.
999 for machine in $build $host $target; do
1000 . ${srcdir}/config.gcc
1003 extra_objs="${host_extra_objs} ${extra_objs}"
1005 # Default the target-machine variables that were not explicitly set.
1006 if test x"$tm_file" = x
1007 then tm_file=$cpu_type/$cpu_type.h; fi
1009 if test x"$extra_headers" = x
1010 then extra_headers=; fi
1012 if test x$md_file = x
1013 then md_file=$cpu_type/$cpu_type.md; fi
1015 if test x$out_file = x
1016 then out_file=$cpu_type/$cpu_type.c; fi
1018 if test x"$tmake_file" = x
1019 then tmake_file=$cpu_type/t-$cpu_type
1022 if test x"$dwarf2" = xyes
1023 then tm_file="$tm_file tm-dwarf2.h"
1026 # Say what files are being used for the output code and MD file.
1027 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1028 echo "Using \`$srcdir/config/$md_file' as machine description file."
1030 # If any of the xm_file variables contain nonexistent files, warn
1031 # about them and drop them.
1034 for x in $build_xm_file; do
1035 if test -f $srcdir/config/$x
1037 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1043 for x in $host_xm_file; do
1044 if test -f $srcdir/config/$x
1046 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1052 for x in $xm_file; do
1053 if test -f $srcdir/config/$x
1055 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1061 for f in $tm_file; do
1064 if test $count = ax; then
1065 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1067 echo "Using the following target machine macro files:"
1068 for f in $tm_file; do
1069 echo " $srcdir/config/$f"
1073 if test x$need_64bit_hwint = xyes; then
1074 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1075 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1079 for f in $host_xm_file; do
1082 if test $count = a; then
1084 elif test $count = ax; then
1085 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1087 echo "Using the following host machine macro files:"
1088 for f in $host_xm_file; do
1089 echo " $srcdir/config/$f"
1092 echo "Using ${out_host_hook_obj} for host machine hooks."
1094 if test "$host_xm_file" != "$build_xm_file"; then
1096 for f in $build_xm_file; do
1099 if test $count = a; then
1101 elif test $count = ax; then
1102 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1104 echo "Using the following build machine macro files:"
1105 for f in $build_xm_file; do
1106 echo " $srcdir/config/$f"
1111 if test x$thread_file = x; then
1112 if test x$target_thread_file != x; then
1113 thread_file=$target_thread_file
1115 thread_file='single'
1119 if test x$enable___cxa_atexit = xyes || \
1120 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1121 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1122 [Define if you want to use __cxa_atexit, rather than atexit, to
1123 register C++ destructors for local statics and global objects.
1124 This is essential for fully standards-compliant handling of
1125 destructors, but requires __cxa_atexit in libc.])
1128 # Look for a file containing extra machine modes.
1129 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1130 extra_modes_file='$(srcdir)'/config/${extra_modes}
1131 AC_SUBST(extra_modes_file)
1132 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1133 [Define to the name of a file containing a list of extra machine modes
1134 for this architecture.])
1135 AC_DEFINE(EXTRA_CC_MODES, 1,
1136 [Define if the target architecture needs extra machine modes to represent
1137 the results of comparisons.])
1140 # auto-host.h is the file containing items generated by autoconf and is
1141 # the first file included by config.h.
1142 # If host=build, it is correct to have bconfig include auto-host.h
1143 # as well. If host!=build, we are in error and need to do more
1144 # work to find out the build config parameters.
1145 if test x$host = x$build
1147 build_auto=auto-host.h
1150 # We create a subdir, then run autoconf in the subdir.
1151 # To prevent recursion we set host and build for the new
1152 # invocation of configure to the build for this invocation
1159 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1160 *) realsrcdir=../${srcdir};;
1162 saved_CFLAGS="${CFLAGS}"
1163 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1164 ${realsrcdir}/configure \
1165 --target=$target_alias --host=$build_alias --build=$build_alias
1166 CFLAGS="${saved_CFLAGS}"
1168 # We just finished tests for the build machine, so rename
1169 # the file auto-build.h in the gcc directory.
1170 mv auto-host.h ../auto-build.h
1173 build_auto=auto-build.h
1174 FORBUILD=../build-$build_alias
1178 tm_file="${tm_file} defaults.h"
1179 tm_p_file="${tm_p_file} tm-preds.h"
1180 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1181 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1182 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1183 # put this back in temporarily.
1184 xm_file="ansidecl.h ${xm_file}"
1190 # Truncate the target if necessary
1191 if test x$host_truncate_target != x; then
1192 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1195 # Get the version trigger filename from the toplevel
1196 if test "${with_gcc_version_trigger+set}" = set; then
1197 gcc_version_trigger=$with_gcc_version_trigger
1199 gcc_version_trigger=${srcdir}/version.c
1202 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1203 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1205 # Compile in configure arguments.
1206 if test -f configargs.h ; then
1207 # Being re-configured.
1208 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1209 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1211 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1213 cat > configargs.h <<EOF
1214 /* Generated automatically. */
1215 static const char configuration_arguments[] = "$gcc_config_arguments";
1216 static const char thread_model[] = "$thread_file";
1218 static const struct {
1219 const char *name, *value;
1220 } configure_default_options[] = $configure_default_options;
1224 # Internationalization
1226 VERSION="$gcc_version"
1230 # Enable NLS support by default
1232 [ --enable-nls use Native Language Support (default)],
1235 # if cross compiling, disable NLS support.
1236 # It's not worth the trouble, at least for now.
1238 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1239 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1245 # Windows32 Registry support for specifying GCC installation paths.
1246 AC_ARG_ENABLE(win32-registry,
1247 [ --disable-win32-registry
1248 disable lookup of installation paths in the
1249 Registry on Windows hosts
1250 --enable-win32-registry enable registry lookup (default)
1251 --enable-win32-registry=KEY
1252 use KEY instead of GCC version as the last portion
1253 of the registry key],,)
1255 win32 | pe | cygwin* | mingw32* | uwin*)
1256 AC_MSG_CHECKING(whether windows registry support is requested)
1257 if test "x$enable_win32_registry" != xno; then
1258 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1259 [Define to 1 if installation paths should be looked up in Windows32
1260 Registry. Ignored on non windows32 hosts.])
1262 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1267 # Check if user specified a different registry key.
1268 case "x${enable_win32_registry}" in
1271 gcc_cv_win32_registry_key="$VERSION"
1274 # no registry lookup.
1275 gcc_cv_win32_registry_key=''
1278 # user-specified key.
1279 gcc_cv_win32_registry_key="$enable_win32_registry"
1283 if test "x$enable_win32_registry" != xno; then
1284 AC_MSG_CHECKING(registry key on windows hosts)
1285 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1286 [Define to be the last portion of registry key on windows hosts.])
1287 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1292 # Get an absolute path to the GCC top-level source directory
1293 holddir=`${PWDCMD-pwd}`
1295 topdir=`${PWDCMD-pwd}`
1298 # Conditionalize the makefile for this host machine.
1299 # Make-host contains the concatenation of all host makefile fragments
1300 # [there can be more than one]. This file is built by configure.frag.
1301 host_overrides=Make-host
1302 dep_host_xmake_file=
1303 for f in .. ${host_xmake_file}
1305 if test -f ${srcdir}/config/$f
1307 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1311 # Conditionalize the makefile for this target machine.
1312 # Make-target contains the concatenation of all host makefile fragments
1313 # [there can be more than one]. This file is built by configure.frag.
1314 target_overrides=Make-target
1316 for f in .. ${tmake_file}
1318 if test -f ${srcdir}/config/$f
1320 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1324 symbolic_link='ln -s'
1326 # If the host doesn't support symlinks, modify CC in
1327 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1328 # Otherwise, we can use "CC=$(CC)".
1330 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1332 cc_set_by_configure="\$(CC)"
1333 quoted_cc_set_by_configure="\$(CC)"
1334 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1335 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1338 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1340 symbolic_link="cp -p"
1344 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1345 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1346 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1347 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1351 out_object_file=`basename $out_file .c`.o
1354 for f in $tm_file; do
1357 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1359 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1360 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1365 for f in $tm_p_file; do
1368 tm_p_file_list="${tm_p_file_list} $f" ;;
1369 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1374 for f in $host_xm_file; do
1377 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1379 host_xm_file_list="${host_xm_file_list} $f" ;;
1381 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1382 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1387 for f in $build_xm_file; do
1390 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1391 auto-build.h | auto-host.h )
1392 build_xm_file_list="${build_xm_file_list} $f" ;;
1394 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1395 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1399 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1400 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1401 CROSS= AC_SUBST(CROSS)
1402 ALL=all.internal AC_SUBST(ALL)
1403 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1404 if test x$host != x$target
1406 CROSS="-DCROSS_COMPILE"
1408 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1409 case "$host","$target" in
1410 i?86-*-*,x86_64-*-* \
1411 | powerpc*-*-*,powerpc64*-*-*)
1412 CROSS="$CROSS -DNATIVE_CROSS" ;;
1414 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1415 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1416 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1419 # If this is a cross-compiler that does not
1420 # have its own set of headers then define
1423 # If this is using newlib, without having the headers available now,
1424 # then define inhibit_libc in LIBGCC2_CFLAGS.
1425 # This prevents libgcc2 from containing any code which requires libc
1428 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1429 test x$with_newlib = xyes ; } &&
1430 test "x$with_headers" = x ; then
1431 inhibit_libc=-Dinhibit_libc
1433 AC_SUBST(inhibit_libc)
1435 # When building gcc with a cross-compiler, we need to adjust things so
1436 # that the generator programs are still built with the native compiler.
1437 # Also, we cannot run fixincludes or fix-header.
1439 # These are the normal (build=host) settings:
1440 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1441 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1442 BUILD_CC='$(CC)' AC_SUBST(BUILD_CC)
1443 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1445 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1446 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1448 # And these apply if build != host.
1449 if test x$build != x$host
1452 BUILD_PREFIX_1=build-
1453 BUILD_CC='$(CC_FOR_BUILD)'
1454 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1456 if test "x$TARGET_SYSTEM_ROOT" = x; then
1462 # Expand extra_headers to include complete path.
1463 # This substitutes for lots of t-* files.
1465 if test "x$extra_headers" = x
1468 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1469 for file in $extra_headers;
1471 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1475 # Add a definition of USE_COLLECT2 if system wants one.
1476 case $use_collect2 in
1477 no) use_collect2= ;;
1480 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1481 xm_defines="${xm_defines} USE_COLLECT2"
1485 # Identify the assembler which will work hand-in-glove with the newly
1486 # built GCC, so that we can examine its features. This is the assembler
1487 # which will be driven by the driver program.
1489 # If build != host, and we aren't building gas in-tree, we identify a
1490 # build->target assembler and hope that it will have the same features
1491 # as the host->target assembler we'll be using.
1492 AC_MSG_CHECKING(what assembler to use)
1495 gcc_cv_gas_major_version=
1496 gcc_cv_gas_minor_version=
1497 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1498 if test -x "$DEFAULT_ASSEMBLER"; then
1499 gcc_cv_as="$DEFAULT_ASSEMBLER"
1500 elif test -x "$AS"; then
1502 elif test -x as$host_exeext; then
1503 # Build using assembler in the current directory.
1504 gcc_cv_as=./as$host_exeext
1505 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1506 && test -f ../gas/Makefile; then
1507 # Single tree build which includes gas.
1509 _gcc_COMPUTE_GAS_VERSION
1510 rm -f as$host_exeext
1511 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1514 if test "x$gcc_cv_as" = x; then
1515 # Search the same directories that the installed compiler will
1516 # search. Else we may find the wrong assembler and lose. If we
1517 # do not find a suitable assembler binary, then try the user's
1520 # Also note we have to check MD_EXEC_PREFIX before checking the
1521 # user's path. Unfortunately, there is no good way to get at the
1522 # value of MD_EXEC_PREFIX here. So we do a brute force search
1523 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1524 # to be fixed as part of the make/configure rewrite too.
1526 if test "x$exec_prefix" = xNONE; then
1527 if test "x$prefix" = xNONE; then
1528 test_prefix=/usr/local
1533 test_prefix=$exec_prefix
1536 # If the loop below does not find an assembler, then use whatever
1537 # one we can find in the users's path.
1539 if test "x$program_prefix" != xNONE; then
1540 gcc_cv_as=${program_prefix}as$host_exeext
1542 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1545 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1546 $test_prefix/lib/gcc-lib/$target_alias \
1547 /usr/lib/gcc/$target_alias/$gcc_version \
1548 /usr/lib/gcc/$target_alias \
1549 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1550 $test_prefix/$target_alias/bin"
1552 if test x$host = x$target; then
1553 test_dirs="$test_dirs \
1558 /bsd43/usr/lib/cmplrs/cc \
1559 /usr/cross64/usr/bin \
1560 /usr/lib/cmplrs/cc \
1561 /sysv/usr/lib/cmplrs/cc \
1562 /svr4/usr/lib/cmplrs/cc \
1566 for dir in $test_dirs; do
1567 if test -x $dir/as$host_exeext; then
1568 gcc_cv_as=$dir/as$host_exeext
1573 case $in_tree_gas in
1575 AC_MSG_RESULT("newly built gas")
1578 AC_MSG_RESULT($gcc_cv_as)
1582 # Identify the linker which will work hand-in-glove with the newly
1583 # built GCC, so that we can examine its features. This is the linker
1584 # which will be driven by the driver program.
1586 # If build != host, and we aren't building gas in-tree, we identify a
1587 # build->target linker and hope that it will have the same features
1588 # as the host->target linker we'll be using.
1589 AC_MSG_CHECKING(what linker to use)
1592 gcc_cv_gld_major_version=
1593 gcc_cv_gld_minor_version=
1594 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1595 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1596 if test -x "$DEFAULT_LINKER"; then
1597 gcc_cv_ld="$DEFAULT_LINKER"
1598 elif test -x "$LD"; then
1600 elif test -x collect-ld$host_exeext; then
1601 # Build using linker in the current directory.
1602 gcc_cv_ld=./collect-ld$host_exeext
1603 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1604 && test -f ../ld/Makefile; then
1605 # Single tree build which includes ld.
1607 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
1610 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1612 if test x$gcc_cv_gld_version != x; then
1617 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1618 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1620 rm -f collect-ld$host_exeext
1621 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1625 if test "x$gcc_cv_ld" = x; then
1626 # Search the same directories that the installed compiler will
1627 # search. Else we may find the wrong linker and lose. If we
1628 # do not find a suitable linker binary, then try the user's
1631 # Also note we have to check MD_EXEC_PREFIX before checking the
1632 # user's path. Unfortunately, there is no good way to get at the
1633 # value of MD_EXEC_PREFIX here. So we do a brute force search
1634 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1635 # to be fixed as part of the make/configure rewrite too.
1637 if test "x$exec_prefix" = xNONE; then
1638 if test "x$prefix" = xNONE; then
1639 test_prefix=/usr/local
1644 test_prefix=$exec_prefix
1647 # If the loop below does not find an linker, then use whatever
1648 # one we can find in the users's path.
1650 if test "x$program_prefix" != xNONE; then
1651 gcc_cv_ld=${program_prefix}ld$host_exeext
1653 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1656 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1657 $test_prefix/lib/gcc-lib/$target_alias \
1658 /usr/lib/gcc/$target_alias/$gcc_version \
1659 /usr/lib/gcc/$target_alias \
1660 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1661 $test_prefix/$target_alias/bin"
1663 if test x$host = x$target; then
1664 test_dirs="$test_dirs \
1669 /bsd43/usr/lib/cmplrs/cc \
1670 /usr/cross64/usr/bin \
1671 /usr/lib/cmplrs/cc \
1672 /sysv/usr/lib/cmplrs/cc \
1673 /svr4/usr/lib/cmplrs/cc \
1677 for dir in $test_dirs; do
1678 if test -x $dir/ld$host_exeext; then
1679 gcc_cv_ld=$dir/ld$host_exeext
1686 AC_MSG_RESULT("newly built ld")
1689 AC_MSG_RESULT($gcc_cv_ld)
1693 # Figure out what nm we will be using.
1694 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1695 AC_MSG_CHECKING(what nm to use)
1697 if test -x nm$host_exeext; then
1698 gcc_cv_nm=./nm$host_exeext
1699 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1700 && test -f ../binutils/Makefile; then
1701 # Single tree build which includes binutils.
1703 gcc_cv_nm=./nm$host_exeext
1704 rm -f nm$host_exeext
1705 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1706 elif test "x$program_prefix" != xNONE; then
1707 gcc_cv_nm=${program_prefix}nm$host_exeext
1709 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1712 yes) AC_MSG_RESULT("newly built nm") ;;
1713 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1716 # Figure out what objdump we will be using.
1717 AC_MSG_CHECKING(what objdump to use)
1719 if test -x objdump$host_exeext; then
1720 gcc_cv_objdump=./objdump$host_exeext
1721 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1722 && test -f ../binutils/Makefile; then
1723 # Single tree build which includes binutils.
1725 gcc_cv_objdump=./objdump$host_exeext
1726 rm -f objdump$host_exeext
1727 $symbolic_link ../binutils/objdump$host_exeext \
1728 objdump$host_exeext 2>/dev/null
1729 elif test "x$program_prefix" != xNONE; then
1730 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1732 gcc_cv_objdump=`echo objdump | \
1733 sed ${program_transform_name}`$host_exeext
1735 case $in_tree_objdump in
1736 yes) AC_MSG_RESULT("newly built objdump") ;;
1737 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1740 # Figure out what assembler alignment features are present.
1741 AC_MSG_CHECKING(assembler alignment features)
1742 gcc_cv_as_alignment_features=none
1743 if test $in_tree_gas = yes; then
1744 # Gas version 2.6 and later support for .balign and .p2align.
1745 gcc_GAS_VERSION_GTE_IFELSE(2,6,0,[
1746 gcc_cv_as_alignment_features=".balign and .p2align"
1747 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1749 # Gas version 2.8 and later support specifying the maximum
1750 # bytes to skip when using .p2align.
1751 gcc_GAS_VERSION_GTE_IFELSE(2,8,0,[
1752 gcc_cv_as_alignment_features=".p2align including maximum skip"
1753 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1755 elif test x$gcc_cv_as != x; then
1756 # Check if we have .balign and .p2align
1757 echo ".balign 4" > conftest.s
1758 echo ".p2align 2" >> conftest.s
1759 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1760 gcc_cv_as_alignment_features=".balign and .p2align"
1761 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1763 rm -f conftest.s conftest.o
1764 # Check if specifying the maximum bytes to skip when
1765 # using .p2align is supported.
1766 echo ".p2align 4,,7" > conftest.s
1767 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1768 gcc_cv_as_alignment_features=".p2align including maximum skip"
1769 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1771 rm -f conftest.s conftest.o
1773 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1775 AC_MSG_CHECKING(assembler subsection support)
1776 gcc_cv_as_subsections=no
1777 if test $in_tree_gas = yes ; then
1778 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
1779 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1780 gcc_cv_as_subsections="working .subsection -1"
1783 elif test x$gcc_cv_as != x; then
1784 # Check if we have .subsection
1785 echo ".subsection 1" > conftest.s
1786 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1787 gcc_cv_as_subsections=".subsection"
1788 if test x$gcc_cv_nm != x; then
1789 cat > conftest.s <<EOF
1790 conftest_label1: .word 0
1792 conftest_label2: .word 0
1795 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1796 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1797 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1798 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1801 gcc_cv_as_subsections="working .subsection -1"
1806 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1808 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1809 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1810 [Define if your assembler supports .subsection and .subsection -1 starts
1811 emitting at the beginning of your section.])
1813 AC_MSG_RESULT($gcc_cv_as_subsections)
1815 AC_MSG_CHECKING(assembler weak support)
1817 if test $in_tree_gas = yes ; then
1818 gcc_GAS_VERSION_GTE_IFELSE(2,2,0,[
1819 gcc_cv_as_weak="yes"
1821 elif test x$gcc_cv_as != x; then
1822 # Check if we have .weak
1823 echo " .weak foobar" > conftest.s
1824 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1825 gcc_cv_as_weak="yes"
1827 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1829 if test x"$gcc_cv_as_weak" = xyes; then
1830 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1832 AC_MSG_RESULT($gcc_cv_as_weak)
1834 AC_MSG_CHECKING(assembler hidden support)
1836 if test $in_tree_gas = yes ; then
1837 gcc_GAS_VERSION_GTE_IFELSE(2,12,1,[
1838 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1839 gcc_cv_as_hidden="yes"
1842 elif test x$gcc_cv_as != x; then
1843 # Check if we have .hidden
1844 echo " .hidden foobar" > conftest.s
1845 echo "foobar:" >> conftest.s
1846 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1847 gcc_cv_as_hidden="yes"
1849 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1851 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1852 # This is irritatingly difficult to feature test for. Look for
1853 # the date string after the version number.
1854 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1855 if echo "$ld_ver" | grep GNU > /dev/null; then
1857 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\)\([ ].*\|\)$,\1,p'`
1858 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1859 if test 0"$ld_date" -lt 20020404; then
1860 if test -n "$ld_date"; then
1861 # If there was date string, but was earlier than 2002-04-04, fail
1862 gcc_cv_as_hidden="no"
1863 elif test -z "$ld_vers"; then
1864 # If there was no date string nor ld version number, something is wrong
1865 gcc_cv_as_hidden="no"
1867 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1868 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1869 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1870 test -z "$ld_vers_patch" && ld_vers_patch=0
1871 if test "$ld_vers_major" -lt 2; then
1872 gcc_cv_as_hidden="no"
1873 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1874 gcc_cv_as_hidden="no"
1875 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1876 -a "$ld_vers_patch" -eq 0; then
1877 gcc_cv_as_hidden="no"
1886 if test x"$gnu_ld_flag" = x"no"; then
1887 # Even if using gas with .hidden support, the resulting object files
1888 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1889 # N64 linkers, the problem is that the linker refuses to accept
1890 # -call_shared (passed by default to the linker) and -r (used to
1891 # link the object file generated without .hidden directives with
1892 # one that hides symbols), so we also lose.
1897 if test x"$gcc_cv_as_hidden" = xyes; then
1898 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1899 [Define if your assembler supports .hidden.])
1901 AC_MSG_RESULT($gcc_cv_as_hidden)
1902 libgcc_visibility=$gcc_cv_as_hidden
1903 AC_SUBST(libgcc_visibility)
1905 AC_MSG_CHECKING(assembler leb128 support)
1907 if test $in_tree_gas = yes ; then
1908 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
1909 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1910 gcc_cv_as_leb128="yes"
1913 elif test x$gcc_cv_as != x; then
1914 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1915 cat > conftest.s <<EOF
1923 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1924 gcc_cv_as_leb128="yes"
1926 # GAS versions before 2.11 do not support uleb128,
1927 # despite appearing to.
1928 # ??? There exists an elf-specific test that will crash
1929 # the assembler. Perhaps it's better to figure out whether
1930 # arbitrary sections are supported and try the test.
1931 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1932 if echo "$as_ver" | grep GNU > /dev/null; then
1934 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1935 as_major=`echo $as_ver | sed 's/\..*//'`
1936 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1938 if test $as_major -eq 2 -a $as_minor -lt 11; then
1939 gcc_cv_as_leb128="no"
1943 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1945 if test x"$gcc_cv_as_leb128" = xyes; then
1946 AC_DEFINE(HAVE_AS_LEB128, 1,
1947 [Define if your assembler supports .uleb128.])
1949 AC_MSG_RESULT($gcc_cv_as_leb128)
1951 AC_MSG_CHECKING(assembler eh_frame optimization)
1952 gcc_cv_as_eh_frame=no
1953 if test $in_tree_gas = yes ; then
1954 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1955 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1956 gcc_cv_as_eh_frame="yes"
1959 elif test x$gcc_cv_as != x; then
1960 # Check if this is GAS.
1961 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1962 rm -f a.out 2> /dev/null
1963 if echo "$as_ver" | grep GNU > /dev/null; then
1964 # Versions up to and including 2.11.0 may mis-optimize
1965 # .eh_frame data. Try something.
1966 cat > conftest.s <<EOF
1973 .section .eh_frame,"aw",@progbits
1975 .4byte .LECIE1-.LSCIE1
1989 .4byte .LEFDE1-.LASFDE1
1991 .4byte .LASFDE1-__FRAME_BEGIN__
2000 cat > conftest.lit <<EOF
2001 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2002 0010 01000000 12000000 18000000 00000000 ................
2003 0020 08000000 04080000 0044 .........D
2005 cat > conftest.big <<EOF
2006 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2007 0010 00000001 00000012 00000018 00000000 ................
2008 0020 00000008 04000000 0844 .........D
2010 # If the assembler didn't choke, and we can objdump,
2011 # and we got the correct data, then succeed.
2012 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2013 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2014 | tail -3 > conftest.got \
2015 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2016 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2018 gcc_cv_as_eh_frame="yes"
2020 gcc_cv_as_eh_frame="bad"
2021 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
2022 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2023 [Define if your assembler mis-optimizes .eh_frame data.])
2029 AC_MSG_RESULT($gcc_cv_as_eh_frame)
2031 AC_MSG_CHECKING(assembler section merging support)
2032 gcc_cv_as_shf_merge=no
2033 if test $in_tree_gas = yes ; then
2034 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2035 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
2036 gcc_cv_as_shf_merge=yes
2039 elif test x$gcc_cv_as != x; then
2040 # Check if we support SHF_MERGE sections
2041 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
2042 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
2043 gcc_cv_as_shf_merge=yes
2045 rm -f conftest.s conftest.o
2047 if test x"$gcc_cv_as_shf_merge" = xyes; then
2048 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
2049 [Define if your assembler supports marking sections with SHF_MERGE flag.])
2051 AC_MSG_RESULT($gcc_cv_as_shf_merge)
2053 AC_MSG_CHECKING(assembler thread-local storage support)
2063 .section ".tdata","awT",@progbits
2066 ldq $27,__tls_get_addr($29) !literal!1
2067 lda $16,foo($29) !tlsgd!1
2068 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2069 ldq $27,__tls_get_addr($29) !literal!2
2070 lda $16,foo($29) !tlsldm!2
2071 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2072 ldq $1,foo($29) !gotdtprel
2073 ldah $2,foo($29) !dtprelhi
2074 lda $3,foo($2) !dtprello
2075 lda $4,foo($29) !dtprel
2076 ldq $1,foo($29) !gottprel
2077 ldah $2,foo($29) !tprelhi
2078 lda $3,foo($2) !tprello
2079 lda $4,foo($29) !tprel'
2086 .section ".tdata","awT",@progbits
2090 leal foo@TLSGD(,%ebx,1), %eax
2091 leal foo@TLSLDM(%ebx), %eax
2092 leal foo@DTPOFF(%eax), %edx
2093 movl foo@GOTTPOFF(%ebx), %eax
2094 subl foo@GOTTPOFF(%ebx), %eax
2095 addl foo@GOTNTPOFF(%ebx), %eax
2096 movl foo@INDNTPOFF, %eax
2097 movl $foo@TPOFF, %eax
2098 subl $foo@TPOFF, %eax
2099 leal foo@NTPOFF(%ecx), %eax'
2105 .section ".tdata","awT",@progbits
2109 leaq foo@TLSGD(%rip), %rdi
2110 leaq foo@TLSLD(%rip), %rdi
2111 leaq foo@DTPOFF(%rax), %rdx
2112 movq foo@GOTTPOFF(%rip), %rax
2113 movq $foo@TPOFF, %rax'
2119 .section ".tdata","awT",@progbits
2122 addl r16 = @ltoff(@dtpmod(foo#)), gp
2123 addl r17 = @ltoff(@dtprel(foo#)), gp
2124 addl r18 = @ltoff(@tprel(foo#)), gp
2125 addl r19 = @dtprel(foo#), gp
2126 adds r21 = @dtprel(foo#), r13
2127 movl r23 = @dtprel(foo#)
2128 addl r20 = @tprel(foo#), gp
2129 adds r22 = @tprel(foo#), r13
2130 movl r24 = @tprel(foo#)'
2136 .section ".tdata","awT",@progbits
2144 addi 3,31,ld0@got@tlsgd
2146 addi 3,31,x1@got@tlsld
2149 addis 9,3,x2@dtprel@ha
2150 addi 9,9,x2@dtprel@l
2151 lwz 9,x3@got@tprel(31)
2154 addis 9,2,x2@tprel@ha
2155 addi 9,9,x2@tprel@l'
2162 .section ".tdata","awT",@progbits
2170 addi 3,2,ld0@got@tlsgd
2176 addi 3,2,x1@got@tlsld
2182 addis 9,3,x2@dtprel@ha
2183 addi 9,9,x2@dtprel@l
2186 ld 9,x3@got@dtprel(2)
2196 .section ".tdata","awT",@progbits
2205 l %r1,foo@GOTNTPOFF(%r12)
2206 l %r1,0(%r1):tls_load:foo
2207 bas %r14,0(%r1,%r13):tls_gdcall:foo
2208 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2215 .section ".tdata","awT",@progbits
2223 lg %r1,foo@GOTNTPOFF(%r12)
2224 larl %r1,foo@INDNTPOFF
2225 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2226 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2229 tls_as_opt="-m64 -Aesame"
2232 if test -z "$tls_first_major"; then
2234 elif test $in_tree_gas = yes ; then
2235 gcc_GAS_VERSION_GTE_IFELSE($tls_first_major,$tls_first_minor,0,[
2238 elif test x$gcc_cv_as != x; then
2239 echo "$conftest_s" > conftest.s
2240 if $gcc_cv_as $tls_as_opt --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2244 rm -f conftest.s conftest.o
2246 if test "$gcc_cv_as_tls" = yes; then
2247 AC_DEFINE(HAVE_AS_TLS, 1,
2248 [Define if your assembler supports thread-local storage.])
2250 AC_MSG_RESULT($gcc_cv_as_tls)
2253 # All TARGET_ABI_OSF targets.
2254 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2255 AC_CACHE_CHECK([assembler supports explicit relocations],
2256 gcc_cv_as_explicit_relocs, [
2257 gcc_cv_as_explicit_relocs=unknown
2258 if test $in_tree_gas = yes ; then
2259 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2260 gcc_cv_as_explicit_relocs=yes
2262 elif test x$gcc_cv_as != x; then
2263 cat > conftest.s << 'EOF'
2266 extbl $3, $2, $3 !lituse_bytoff!1
2267 ldq $2, a($29) !literal!1
2268 ldq $4, b($29) !literal!2
2269 ldq_u $3, 0($2) !lituse_base!1
2270 ldq $27, f($29) !literal!5
2271 jsr $26, ($27), f !lituse_jsr!5
2272 ldah $29, 0($26) !gpdisp!3
2273 lda $0, c($29) !gprel
2274 ldah $1, d($29) !gprelhigh
2275 lda $1, d($1) !gprellow
2276 lda $29, 0($29) !gpdisp!3
2278 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2279 gcc_cv_as_explicit_relocs=yes
2281 gcc_cv_as_explicit_relocs=no
2283 rm -f conftest.s conftest.o
2286 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2287 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2288 [Define if your assembler supports explicit relocations.])
2292 AC_CACHE_CHECK([assembler .register pseudo-op support],
2293 gcc_cv_as_register_pseudo_op, [
2294 gcc_cv_as_register_pseudo_op=unknown
2295 if test x$gcc_cv_as != x; then
2296 # Check if we have .register
2297 echo ".register %g2, #scratch" > conftest.s
2298 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2299 gcc_cv_as_register_pseudo_op=yes
2301 gcc_cv_as_register_pseudo_op=no
2303 rm -f conftest.s conftest.o
2306 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2307 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2308 [Define if your assembler supports .register.])
2311 AC_CACHE_CHECK([assembler supports -relax],
2312 gcc_cv_as_relax_opt, [
2313 gcc_cv_as_relax_opt=unknown
2314 if test x$gcc_cv_as != x; then
2315 # Check if gas supports -relax
2316 echo ".text" > conftest.s
2317 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2318 gcc_cv_as_relax_opt=yes
2320 gcc_cv_as_relax_opt=no
2322 rm -f conftest.s conftest.o
2325 if test "x$gcc_cv_as_relax_opt" = xyes; then
2326 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2327 [Define if your assembler supports -relax option.])
2330 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2331 gcc_cv_as_sparc_ua_pcrel, [
2332 gcc_cv_as_sparc_ua_pcrel=unknown
2333 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2334 gcc_cv_as_sparc_ua_pcrel=no
2335 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2336 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2337 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2338 gcc_cv_as_sparc_ua_pcrel=yes
2340 rm -f conftest.s conftest.o conftest
2343 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2344 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2345 [Define if your assembler and linker support unaligned PC relative relocs.])
2348 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2349 gcc_cv_as_sparc_ua_pcrel_hidden, [
2350 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2351 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2352 if test x$gcc_cv_objdump != x; then
2353 gcc_cv_as_sparc_ua_pcrel_hidden=no
2354 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2355 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2356 echo "foo: .skip 4" >> conftest.s
2357 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2358 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2359 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2360 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2361 if $gcc_cv_objdump -R conftest 2> /dev/null \
2362 | grep 'DISP32' > /dev/null 2>&1; then
2365 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2369 rm -f conftest.s conftest.o conftest
2371 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2374 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2375 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2376 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2379 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2380 gcc_cv_as_offsetable_lo10, [
2381 gcc_cv_as_offsetable_lo10=unknown
2382 if test "x$gcc_cv_as" != x; then
2383 # Check if assembler has offsetable %lo()
2384 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2385 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2386 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2388 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2389 > /dev/null 2>&1; then
2390 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2391 gcc_cv_as_offsetable_lo10=no
2393 gcc_cv_as_offsetable_lo10=yes
2396 gcc_cv_as_offsetable_lo10=no
2398 rm -f conftest.s conftest.o conftest1.s conftest1.o
2401 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2402 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2403 [Define if your assembler supports offsetable %lo().])
2409 i[34567]86-*-* | x86_64-*-*)
2411 AC_MSG_CHECKING(assembler instructions)
2412 gcc_cv_as_instructions=
2413 if test $in_tree_gas = yes ; then
2414 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
2415 gcc_cv_as_instructions="filds fists"
2417 elif test x$gcc_cv_as != x; then
2418 set "filds fists" "filds mem; fists mem"
2421 echo "$2" > conftest.s
2422 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2423 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2427 rm -f conftest.s conftest.o
2429 if test x"$gcc_cv_as_instructions" != x; then
2430 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2432 AC_MSG_RESULT($gcc_cv_as_instructions)
2434 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2435 gcc_cv_as_gotoff_in_data=no
2436 if test $in_tree_gas = yes ; then
2437 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2438 gcc_cv_as_gotoff_in_data=yes
2440 elif test x$gcc_cv_as != x; then
2441 cat > conftest.s <<EOF
2448 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2449 gcc_cv_as_gotoff_in_data=yes
2452 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2453 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2454 [Define true if the assembler supports '.long foo@GOTOFF'.])
2455 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2459 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2460 gcc_cv_as_ltoffx_ldxmov_relocs, [
2461 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2462 if test $in_tree_gas = yes ; then
2463 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2464 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2466 elif test x$gcc_cv_as != x; then
2467 cat > conftest.s << 'EOF'
2470 addl r15 = @ltoffx(x#), gp
2472 ld8.mov r16 = [r15], x#
2475 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2476 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2478 gcc_cv_as_ltoffx_ldxmov_relocs=no
2480 rm -f conftest.s conftest.o
2483 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2484 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2485 [Define if your assembler supports ltoffx and ldxmov relocations.])
2490 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2491 gcc_cv_as_dwarf2_debug_line=no
2492 # ??? Not all targets support dwarf2 debug_line, even within a version
2493 # of gas. Moreover, we need to emit a valid instruction to trigger any
2494 # info to the output file. So, as supported targets are added to gas 2.11,
2495 # add some instruction here to (also) show we expect this might work.
2496 # ??? Once 2.11 is released, probably need to add first known working
2497 # version to the per-target configury.
2499 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2500 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* | xstormy16*-*-*)
2507 if test $in_tree_gas = yes ; then
2508 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2509 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2510 && test x"$insn" != x ; then
2511 gcc_cv_as_dwarf2_debug_line="yes"
2514 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2515 echo ' .file 1 "conftest.s"' > conftest.s
2516 echo ' .loc 1 3 0' >> conftest.s
2517 echo " $insn" >> conftest.s
2518 # ??? This fails with non-gnu grep.
2519 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2520 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2521 # The .debug_line file table must be in the exact order that
2522 # we specified the files, since these indices are also used
2523 # by DW_AT_decl_file. Approximate this test by testing if
2524 # the assembler bitches if the same index is assigned twice.
2525 echo ' .file 1 "foo.s"' > conftest.s
2526 echo ' .file 1 "bar.s"' >> conftest.s
2527 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2529 gcc_cv_as_dwarf2_debug_line="no"
2531 gcc_cv_as_dwarf2_debug_line="yes"
2534 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2536 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2537 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2538 [Define if your assembler supports dwarf2 .file/.loc directives,
2539 and preserves file table indices exactly as given.])
2541 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2543 AC_MSG_CHECKING(assembler --gdwarf2 support)
2544 gcc_cv_as_gdwarf2_flag=no
2545 if test $in_tree_gas = yes ; then
2546 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2547 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2548 && test x"$insn" != x ; then
2549 gcc_cv_as_gdwarf2_flag="yes"
2552 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2553 echo '' > conftest.s
2554 # ??? This fails with non-gnu grep.
2555 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2557 gcc_cv_as_gdwarf2_flag="yes"
2559 rm -f conftest.s conftest.o
2561 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2562 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2563 [Define if your assembler supports the --gdwarf2 option.])
2565 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2567 AC_MSG_CHECKING(assembler --gstabs support)
2568 gcc_cv_as_gstabs_flag=no
2569 if test $in_tree_gas = yes ; then
2570 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2571 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2572 && test x"$insn" != x ; then
2573 gcc_cv_as_gstabs_flag="yes"
2576 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2577 echo '' > conftest.s
2578 # ??? This fails with non-gnu grep.
2579 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2580 gcc_cv_as_gstabs_flag="yes"
2582 rm -f conftest.s conftest.o
2584 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2585 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2586 [Define if your assembler supports the --gstabs option.])
2588 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2590 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2591 gcc_cv_ld_ro_rw_mix=unknown
2592 if test $in_tree_ld = yes ; then
2593 if test "$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
2594 gcc_cv_ld_ro_rw_mix=read-write
2596 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2597 echo '.section "myfoosect", "a"' > conftest1.s
2598 echo '.section "myfoosect", "aw"' > conftest2.s
2599 echo '.byte 1' >> conftest2.s
2600 echo '.section "myfoosect", "a"' > conftest3.s
2601 echo '.byte 0' >> conftest3.s
2602 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2603 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2604 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2605 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2606 conftest2.o conftest3.o; then
2607 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2608 | grep -A1 myfoosect`
2609 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2610 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2611 gcc_cv_ld_ro_rw_mix=read-only
2613 gcc_cv_ld_ro_rw_mix=read-write
2618 rm -f conftest.* conftest[123].*
2621 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2622 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2623 [Define if your linker links a mix of read-only
2624 and read-write sections into a read-write section.])
2626 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2628 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2629 gcc_cv_ld_eh_frame_hdr=no
2630 if test $in_tree_ld = yes ; then
2631 if test "$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
2632 gcc_cv_ld_eh_frame_hdr=yes
2634 elif test x$gcc_cv_ld != x; then
2635 # Check if linker supports --eh-frame-hdr option
2636 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2637 gcc_cv_ld_eh_frame_hdr=yes
2640 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2641 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2642 [Define if your linker supports --eh-frame-hdr option.])
2644 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2646 AC_MSG_CHECKING(linker position independent executable support)
2648 if test $in_tree_ld = yes ; then
2649 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2652 elif test x$gcc_cv_ld != x; then
2653 # Check if linker supports -pie option
2654 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2658 if test x"$gcc_cv_ld_pie" = xyes; then
2659 AC_DEFINE(HAVE_LD_PIE, 1,
2660 [Define if your linker supports -pie option.])
2662 AC_MSG_RESULT($gcc_cv_ld_pie)
2664 # Miscellaneous target-specific checks.
2667 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2668 gcc_cv_mips_libgloss_startup=no
2669 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2670 if test "x$exec_prefix" = xNONE; then
2671 if test "x$prefix" = xNONE; then
2672 test_prefix=/usr/local
2677 test_prefix=$exec_prefix
2679 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2681 if grep '^STARTUP' $f > /dev/null 2>&1; then
2682 gcc_cv_mips_libgloss_startup=yes
2686 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2687 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2688 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2690 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2692 AC_MSG_CHECKING(whether the assembler has explicit relocation support)
2693 if test x$gcc_cv_mips_explicit_relocs = x; then
2694 gcc_cv_mips_explicit_relocs=no
2695 if test x$gcc_cv_as != x; then
2696 echo ' lw $4,%gp_rel(foo)($4)' > conftest.s
2697 if $gcc_cv_as conftest.s -o conftest.o > /dev/null 2>&1; then
2698 gcc_cv_mips_explicit_relocs=yes
2700 rm -f conftest.s conftest.o
2703 if test $gcc_cv_mips_explicit_relocs = yes; then
2704 test x$target_cpu_default != x || target_cpu_default=0
2705 target_cpu_default="(${target_cpu_default}|MASK_EXPLICIT_RELOCS)"
2707 AC_MSG_RESULT($gcc_cv_mips_explicit_relocs)
2711 if test x$with_sysroot = x && test x$host = x$target \
2712 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2713 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2716 # Figure out what language subdirectories are present.
2717 # Look if the user specified --enable-languages="..."; if not, use
2718 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2720 # NB: embedded tabs in this IF block -- do not untabify
2721 if test x"${enable_languages+set}" != xset; then
2722 if test x"${LANGUAGES+set}" = xset; then
2723 enable_languages="${LANGUAGES}"
2724 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2727 enable_languages=all
2730 if test x"${enable_languages}" = x \
2731 || test x"${enable_languages}" = xyes;
2733 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2736 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2738 # First scan to see if an enabled language requires some other language.
2739 # We assume that a given config-lang.in will list all the language
2740 # front ends it requires, even if some are required indirectly.
2741 for lang in ${srcdir}/*/config-lang.in ..
2746 # The odd quoting in the next line works around
2747 # an apparent bug in bash 1.12 on linux.
2749 ${srcdir}/[*]/config-lang.in)
2752 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2753 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2754 for other in $this_lang_requires
2756 case ,${enable_languages}, in
2762 enable_languages="$enable_languages,$other"
2771 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2774 for lang in ${srcdir}/*/config-lang.in ..
2778 # The odd quoting in the next line works around
2779 # an apparent bug in bash 1.12 on linux.
2781 ${srcdir}/[*]/config-lang.in) ;;
2783 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2784 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2785 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2786 if test "x$lang_alias" = x
2788 echo "$lang doesn't set \$language." 1>&2
2791 case ${build_by_default},${enable_languages}, in
2792 *,$lang_alias,*) add_this_lang=yes ;;
2793 no,*) add_this_lang=no ;;
2794 *,all,*) add_this_lang=yes ;;
2795 *) add_this_lang=no ;;
2797 found_languages="${found_languages} ${lang_alias}"
2798 if test x"${add_this_lang}" = xyes; then
2800 ${srcdir}/ada/config-lang.in)
2801 if test x$have_gnat = xyes ; then
2802 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2806 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2816 for expected_language in ${expected_languages} ..
2818 if test "${expected_language}" != ..; then
2819 missing_language="${expected_language}"
2820 if test "${expected_language}" = "c" \
2821 || test "${expected_language}" = "all"; then
2824 for found_language in ${found_languages} ..
2826 if test "${found_language}" != ..; then
2827 if test "${expected_language}" = "${found_language}"; then
2832 if test "x${missing_language}" != x; then
2833 missing_languages="${missing_languages} ${missing_language}"
2838 if test "x$missing_languages" != x; then
2840 The following requested languages were not found:${missing_languages}
2841 The following languages were available: c${found_languages}])
2844 # Make gthr-default.h if we have a thread file.
2846 if test $thread_file != single; then
2847 rm -f gthr-default.h
2848 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2849 gthread_flags=-DHAVE_GTHR_DEFAULT
2851 AC_SUBST(gthread_flags)
2853 # Find out what GC implementation we want, or may, use.
2855 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2862 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2867 echo "Using $GGC for garbage collection."
2869 # Use the system's zlib library.
2871 zlibinc="-I\$(srcdir)/../zlib"
2872 AC_ARG_WITH(system-zlib,
2873 [ --with-system-zlib use installed libz],
2880 dnl Very limited version of automake's enable-maintainer-mode
2882 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2883 dnl maintainer-mode is disabled by default
2884 AC_ARG_ENABLE(maintainer-mode,
2885 [ --enable-maintainer-mode
2886 enable make rules and dependencies not useful
2887 (and sometimes confusing) to the casual installer],
2888 maintainer_mode=$enableval,
2891 AC_MSG_RESULT($maintainer_mode)
2893 if test "$maintainer_mode" = "yes"; then
2900 # Make empty files to contain the specs and options for each language.
2901 # Then add #include lines to for a compiler that has specs and/or options.
2906 for subdir in . $subdirs
2908 if test -f $srcdir/$subdir/lang-specs.h; then
2909 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2911 if test -f $srcdir/$subdir/lang-options.h; then
2912 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2914 if test -f $srcdir/$subdir/$subdir-tree.def; then
2915 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2919 # These (without "all_") are set in each config-lang.in.
2920 # `language' must be a single word so is spelled singularly.
2925 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2926 # List of language makefile fragments.
2928 # Files for gengtype
2929 all_gtfiles="$target_gtfiles"
2930 # Files for gengtype with language
2931 all_gtfiles_files_langs=
2932 all_gtfiles_files_files=
2934 # Add the language fragments.
2935 # Languages are added via two mechanisms. Some information must be
2936 # recorded in makefile variables, these are defined in config-lang.in.
2937 # We accumulate them and plug them into the main Makefile.
2938 # The other mechanism is a set of hooks for each of the main targets
2939 # like `clean', `install', etc.
2941 language_fragments="Make-lang"
2942 language_hooks="Make-hooks"
2944 for s in .. $subdirs
2954 . ${srcdir}/$s/config-lang.in
2955 if test "x$language" = x
2957 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2960 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2961 if test -f ${srcdir}/$s/Makefile.in
2962 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2964 all_languages="$all_languages $language"
2965 if test "x$boot_language" = xyes
2967 all_boot_languages="$all_boot_languages $language"
2969 all_compilers="$all_compilers $compilers"
2970 all_stagestuff="$all_stagestuff $stagestuff"
2971 all_outputs="$all_outputs $outputs"
2972 all_gtfiles="$all_gtfiles $gtfiles"
2973 for f in .. $gtfiles
2977 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2978 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2984 # Pick up gtfiles for c
2987 . ${srcdir}/c-config-lang.in
2988 all_gtfiles="$all_gtfiles $gtfiles"
2989 for f in .. $gtfiles
2993 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2994 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2999 for language in .. $all_languages
3001 if test $language != ".."
3003 check_languages="$check_languages check-$language"
3007 # Since we can't use `::' targets, we link each language in
3008 # with a set of hooks, reached indirectly via lang.${target}.
3012 target_list="all.build all.cross start.encap rest.encap tags \
3013 info dvi generated-manpages \
3014 install-normal install-common install-info install-man \
3016 mostlyclean clean distclean extraclean maintainer-clean \
3017 stage1 stage2 stage3 stage4"
3018 for t in $target_list
3021 for lang in .. $all_languages
3023 if test $lang != ".."; then
3027 echo "lang.$t: $x" >> Make-hooks
3032 echo "dir ." > .gdbinit
3033 echo "dir ${srcdir}" >> .gdbinit
3034 if test x$gdb_needs_out_file_path = xyes
3036 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3038 if test "x$subdirs" != x; then
3041 echo "dir ${srcdir}/$s" >> .gdbinit
3044 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3046 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3047 # absolute path for gcc_tooldir based on inserting the number of up-directory
3048 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3049 # $(libsubdir)/@(unlibsubdir) based path.
3050 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3051 # make and thus we'd get different behavior depending on where we built the
3053 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3054 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
3056 changequote(<<, >>)dnl
3057 # An explanation of the sed strings:
3058 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3059 # -e 's|/$||' match a trailing forward slash and eliminates it
3060 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3061 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3063 # (*) Note this pattern overwrites the first character of the string
3064 # with a forward slash if one is not already present. This is not a
3065 # problem because the exact names of the sub-directories concerned is
3066 # unimportant, just the number of them matters.
3068 # The practical upshot of these patterns is like this:
3070 # prefix exec_prefix result
3071 # ------ ----------- ------
3073 # /foo/ /foo/bar ../
3074 # /foo /foo/bar/ ../
3075 # /foo/ /foo/bar/ ../
3076 # /foo /foo/bar/ugg ../../
3079 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
3080 changequote([, ])dnl
3082 AC_SUBST(gcc_tooldir)
3085 # Find a directory in which to install a shared libgcc.
3087 AC_ARG_ENABLE(version-specific-runtime-libs,
3088 [ --enable-version-specific-runtime-libs
3089 specify that runtime libraries should be
3090 installed in a compiler-specific directory])
3092 AC_ARG_WITH(slibdir,
3093 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3094 slibdir="$with_slibdir",
3095 if test "${enable_version_specific_runtime_libs+set}" = set; then
3096 slibdir='$(libsubdir)'
3097 elif test "$host" != "$target"; then
3098 slibdir='$(build_tooldir)/lib'
3104 objdir=`${PWDCMD-pwd}`
3107 # Process the language and host/target makefile fragments.
3108 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
3110 # Substitute configuration variables
3113 AC_SUBST(all_boot_languages)
3114 AC_SUBST(all_compilers)
3115 AC_SUBST(all_gtfiles)
3116 AC_SUBST(all_gtfiles_files_langs)
3117 AC_SUBST(all_gtfiles_files_files)
3118 AC_SUBST(all_lang_makefiles)
3119 AC_SUBST(all_languages)
3120 AC_SUBST(all_stagestuff)
3121 AC_SUBST(build_exeext)
3122 AC_SUBST(build_install_headers_dir)
3123 AC_SUBST(build_xm_file_list)
3124 AC_SUBST(build_xm_file)
3125 AC_SUBST(build_xm_defines)
3126 AC_SUBST(check_languages)
3127 AC_SUBST(cc_set_by_configure)
3128 AC_SUBST(quoted_cc_set_by_configure)
3129 AC_SUBST(cpp_install_dir)
3130 AC_SUBST(dep_host_xmake_file)
3131 AC_SUBST(dep_tmake_file)
3132 AC_SUBST(extra_headers_list)
3133 AC_SUBST(extra_objs)
3134 AC_SUBST(extra_parts)
3135 AC_SUBST(extra_passes)
3136 AC_SUBST(extra_programs)
3137 AC_SUBST(float_h_file)
3138 AC_SUBST(gcc_config_arguments)
3139 AC_SUBST(gcc_gxx_include_dir)
3140 AC_SUBST(libstdcxx_incdir)
3141 AC_SUBST(gcc_version)
3142 AC_SUBST(gcc_version_full)
3143 AC_SUBST(gcc_version_trigger)
3144 AC_SUBST(host_exeext)
3145 AC_SUBST(host_extra_gcc_objs)
3146 AC_SUBST(host_xm_file_list)
3147 AC_SUBST(host_xm_file)
3148 AC_SUBST(host_xm_defines)
3149 AC_SUBST(out_host_hook_obj)
3151 AC_SUBST(lang_options_files)
3152 AC_SUBST(lang_specs_files)
3153 AC_SUBST(lang_tree_files)
3154 AC_SUBST(local_prefix)
3156 AC_SUBST(objc_boehm_gc)
3158 AC_SUBST(out_object_file)
3159 AC_SUBST(stage_prefix_set_by_configure)
3160 AC_SUBST(quoted_stage_prefix_set_by_configure)
3161 AC_SUBST(symbolic_link)
3162 AC_SUBST(thread_file)
3163 AC_SUBST(tm_file_list)
3165 AC_SUBST(tm_defines)
3166 AC_SUBST(tm_p_file_list)
3169 AC_SUBST(xm_defines)
3170 AC_SUBST(target_alias)
3171 AC_SUBST(c_target_objs)
3172 AC_SUBST(cxx_target_objs)
3173 AC_SUBST(target_cpu_default)
3175 AC_SUBST_FILE(target_overrides)
3176 AC_SUBST_FILE(host_overrides)
3177 AC_SUBST_FILE(language_fragments)
3178 AC_SUBST_FILE(language_hooks)
3180 # Echo that links are built
3181 if test x$host = x$target
3189 if test x$host != x$build
3191 str3=" on a $build system"
3194 if test "x$str2" != x || test "x$str3" != x
3199 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3201 if test "x$str2" != x || test "x$str3" != x
3203 echo " ${str2}${str3}." 1>&2
3206 # Truncate the target if necessary
3207 if test x$host_truncate_target != x; then
3208 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
3211 # Configure the subdirectories
3212 # AC_CONFIG_SUBDIRS($subdirs)
3214 # Create the Makefile
3215 # and configure language subdirectories
3216 AC_OUTPUT($all_outputs,
3218 case x$CONFIG_HEADERS in
3219 xauto-host.h:config.in)
3222 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3223 # bootstrapping and the installation procedure can still use
3224 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3225 # FLAGS_TO_PASS has been modified to solve the problem there.
3226 # This is virtually a duplicate of what happens in configure.lang; we do
3227 # an extra check to make sure this only happens if ln -s can be used.
3228 if test "$symbolic_link" = "ln -s"; then
3229 for d in .. ${subdirs} fixinc ; do
3230 if test $d != ..; then
3231 STARTDIR=`${PWDCMD-pwd}`
3233 for t in stage1 stage2 stage3 stage4 include
3236 $symbolic_link ../$t $t 2>/dev/null
3242 # Avoid having to add intl to our include paths.
3243 if test -f intl/libintl.h; then
3244 echo creating libintl.h
3245 echo '#include "intl/libintl.h"' >libintl.h
3249 symbolic_link='$symbolic_link'