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 $gcc_cv_glibc = yes; then
693 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
698 gcc_AC_HEADER_STDBOOL
701 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
702 fcntl.h unistd.h sys/file.h sys/time.h \
703 sys/resource.h sys/param.h sys/times.h sys/stat.h \
704 direct.h malloc.h langinfo.h ldfcn.h wchar.h)
706 # Check for thread headers.
707 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
708 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
710 # These tests can't be done till we know if we have limits.h.
718 # Stage specific cflags for build.
724 stage1_cflags="-Wa,-J"
730 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
731 # sources; use -no-cpp-precomp to get to GNU cpp.
732 # Apple's GCC has bugs in designated initializer handling, so disable
734 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
737 AC_SUBST(stage1_cflags)
739 # These libraries may be used by collect2.
740 # We may need a special search path to get them linked.
741 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
743 for libs in '' -lld -lmld \
744 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
745 '-L/usr/lib/cmplrs/cc3.11 -lmld'
748 AC_TRY_LINK_FUNC(ldopen,
749 [gcc_cv_collect2_libs="$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 $gcc_cv_header_inttypes_h = yes; then
793 AC_DEFINE(HAVE_INTTYPES_H, 1,
794 [Define if you have a working <inttypes.h> header file.])
797 dnl Disabled until we have a complete test for buggy enum bitfields.
798 dnl gcc_AC_C_ENUM_BF_UNSIGNED
800 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
801 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
802 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
803 scandir alphasort gettimeofday mbstowcs wcswidth)
805 if test x$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
850 *** UWIN may not be used as a host platform because
851 *** linking with posix.dll is not allowed by the GNU GPL])
854 # Under VMS, vfork works very different than on Unix. The standard test
855 # won't work, and it isn't easily adaptable. It makes more sense to
857 ac_cv_func_vfork_works=yes
861 AC_FUNC_MMAP_ANYWHERE
866 # We will need to find libiberty.h and ansidecl.h
867 saved_CFLAGS="$CFLAGS"
868 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
869 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
870 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
871 fprintf_unlocked strstr errno vasprintf \
872 malloc realloc calloc free basename getopt clock, , ,[
873 #include "ansidecl.h"
874 #include "system.h"])
876 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
877 #include "ansidecl.h"
879 #ifdef HAVE_SYS_RESOURCE_H
880 #include <sys/resource.h>
885 #include "ansidecl.h"
887 #ifdef HAVE_SYS_RESOURCE_H
888 #include <sys/resource.h>
890 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
891 [Define to \`long' if <sys/resource.h> doesn't define.])])
893 gcc_AC_CHECK_DECLS(ldgetname, , ,[
894 #include "ansidecl.h"
901 gcc_AC_CHECK_DECLS(times, , ,[
902 #include "ansidecl.h"
904 #ifdef HAVE_SYS_TIMES_H
905 #include <sys/times.h>
909 # More time-related stuff.
910 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
912 #include "ansidecl.h"
914 #ifdef HAVE_SYS_TIMES_H
915 #include <sys/times.h>
917 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
918 if test $ac_cv_struct_tms = yes; then
919 AC_DEFINE(HAVE_STRUCT_TMS, 1,
920 [Define if <sys/times.h> defines struct tms.])
923 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
924 # revisit after autoconf 2.50.
925 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
927 #include "ansidecl.h"
929 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
930 if test $gcc_cv_type_clock_t = yes; then
931 AC_DEFINE(HAVE_CLOCK_T, 1,
932 [Define if <time.h> defines clock_t.])
935 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
937 #include "ansidecl.h"
940 [if ((uchar *)0) return 0;
941 if (sizeof(uchar)) return 0;],
942 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
943 if test $ac_cv_type_uchar = yes; then
944 AC_DEFINE(HAVE_UCHAR, 1,
945 [Define if <sys/types.h> defines \`uchar'.])
948 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
949 CFLAGS="$saved_CFLAGS"
951 gcc_AC_INITFINI_ARRAY
953 # mkdir takes a single argument on some systems.
954 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
962 # With Setjmp/Longjmp based exception handling.
963 AC_ARG_ENABLE(sjlj-exceptions,
964 [ --enable-sjlj-exceptions
965 arrange to use setjmp/longjmp exception handling],
966 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
967 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
968 [Define 0/1 to force the choice for exception handling model.])])
970 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
971 # Use libunwind based exception handling.
972 AC_ARG_ENABLE(libunwind-exceptions,
973 [ --enable-libunwind-exceptions force use libunwind for exceptions],
974 use_libunwind_exceptions=$enableval,
975 use_libunwind_exceptions=$use_libunwind_default)
976 if test x"$use_libunwind_exceptions" = xyes; then
977 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
978 [Define if gcc should use -lunwind.])
981 # --------------------------------------------------------
982 # Build, host, and target specific configuration fragments
983 # --------------------------------------------------------
988 build_install_headers_dir=install-headers-tar
993 host_truncate_target=
996 # Decode the host machine, then the target machine.
997 # For the host machine, we save the xm_file variable as host_xm_file;
998 # then we decode the target machine and forget everything else
999 # that came from the host machine.
1000 for machine in $build $host $target; do
1001 . ${srcdir}/config.gcc
1004 extra_objs="${host_extra_objs} ${extra_objs}"
1006 # Default the target-machine variables that were not explicitly set.
1007 if test x"$tm_file" = x
1008 then tm_file=$cpu_type/$cpu_type.h; fi
1010 if test x"$extra_headers" = x
1011 then extra_headers=; fi
1013 if test x$md_file = x
1014 then md_file=$cpu_type/$cpu_type.md; fi
1016 if test x$out_file = x
1017 then out_file=$cpu_type/$cpu_type.c; fi
1019 if test x"$tmake_file" = x
1020 then tmake_file=$cpu_type/t-$cpu_type
1023 if test x"$dwarf2" = xyes
1024 then tm_file="$tm_file tm-dwarf2.h"
1027 # Say what files are being used for the output code and MD file.
1028 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1029 echo "Using \`$srcdir/config/$md_file' as machine description file."
1031 # If any of the xm_file variables contain nonexistent files, warn
1032 # about them and drop them.
1035 for x in $build_xm_file; do
1036 if test -f $srcdir/config/$x
1038 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1044 for x in $host_xm_file; do
1045 if test -f $srcdir/config/$x
1047 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1053 for x in $xm_file; do
1054 if test -f $srcdir/config/$x
1056 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1062 for f in $tm_file; do
1065 if test $count = ax; then
1066 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1068 echo "Using the following target machine macro files:"
1069 for f in $tm_file; do
1070 echo " $srcdir/config/$f"
1074 if test x$need_64bit_hwint = xyes; then
1075 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1076 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1080 for f in $host_xm_file; do
1083 if test $count = a; then
1085 elif test $count = ax; then
1086 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1088 echo "Using the following host machine macro files:"
1089 for f in $host_xm_file; do
1090 echo " $srcdir/config/$f"
1093 echo "Using ${out_host_hook_obj} for host machine hooks."
1095 if test "$host_xm_file" != "$build_xm_file"; then
1097 for f in $build_xm_file; do
1100 if test $count = a; then
1102 elif test $count = ax; then
1103 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1105 echo "Using the following build machine macro files:"
1106 for f in $build_xm_file; do
1107 echo " $srcdir/config/$f"
1112 if test x$thread_file = x; then
1113 if test x$target_thread_file != x; then
1114 thread_file=$target_thread_file
1116 thread_file='single'
1120 if test x$enable___cxa_atexit = xyes || \
1121 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1122 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1123 [Define if you want to use __cxa_atexit, rather than atexit, to
1124 register C++ destructors for local statics and global objects.
1125 This is essential for fully standards-compliant handling of
1126 destructors, but requires __cxa_atexit in libc.])
1129 # Look for a file containing extra machine modes.
1130 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1131 extra_modes_file='$(srcdir)'/config/${extra_modes}
1132 AC_SUBST(extra_modes_file)
1133 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1134 [Define to the name of a file containing a list of extra machine modes
1135 for this architecture.])
1136 AC_DEFINE(EXTRA_CC_MODES, 1,
1137 [Define if the target architecture needs extra machine modes to represent
1138 the results of comparisons.])
1141 # auto-host.h is the file containing items generated by autoconf and is
1142 # the first file included by config.h.
1143 # If host=build, it is correct to have bconfig include auto-host.h
1144 # as well. If host!=build, we are in error and need to do more
1145 # work to find out the build config parameters.
1146 if test x$host = x$build
1148 build_auto=auto-host.h
1151 # We create a subdir, then run autoconf in the subdir.
1152 # To prevent recursion we set host and build for the new
1153 # invocation of configure to the build for this invocation
1160 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1161 *) realsrcdir=../${srcdir};;
1163 saved_CFLAGS="${CFLAGS}"
1164 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1165 ${realsrcdir}/configure \
1166 --target=$target_alias --host=$build_alias --build=$build_alias
1167 CFLAGS="${saved_CFLAGS}"
1169 # We just finished tests for the build machine, so rename
1170 # the file auto-build.h in the gcc directory.
1171 mv auto-host.h ../auto-build.h
1174 build_auto=auto-build.h
1175 FORBUILD=../build-$build_alias
1179 tm_file="${tm_file} defaults.h"
1180 tm_p_file="${tm_p_file} tm-preds.h"
1181 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1182 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1183 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1184 # put this back in temporarily.
1185 xm_file="ansidecl.h ${xm_file}"
1191 # Truncate the target if necessary
1192 if test x$host_truncate_target != x; then
1193 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1196 # Get the version trigger filename from the toplevel
1197 if test "${with_gcc_version_trigger+set}" = set; then
1198 gcc_version_trigger=$with_gcc_version_trigger
1200 gcc_version_trigger=${srcdir}/version.c
1203 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1204 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1206 # Compile in configure arguments.
1207 if test -f configargs.h ; then
1208 # Being re-configured.
1209 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1210 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1212 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1214 cat > configargs.h <<EOF
1215 /* Generated automatically. */
1216 static const char configuration_arguments[] = "$gcc_config_arguments";
1217 static const char thread_model[] = "$thread_file";
1221 # Internationalization
1223 VERSION="$gcc_version"
1227 # Enable NLS support by default
1229 [ --enable-nls use Native Language Support (default)],
1232 # if cross compiling, disable NLS support.
1233 # It's not worth the trouble, at least for now.
1235 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1236 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1242 # Windows32 Registry support for specifying GCC installation paths.
1243 AC_ARG_ENABLE(win32-registry,
1244 [ --disable-win32-registry
1245 disable lookup of installation paths in the
1246 Registry on Windows hosts
1247 --enable-win32-registry enable registry lookup (default)
1248 --enable-win32-registry=KEY
1249 use KEY instead of GCC version as the last portion
1250 of the registry key],,)
1252 win32 | pe | cygwin* | mingw32* | uwin*)
1253 AC_MSG_CHECKING(whether windows registry support is requested)
1254 if test "x$enable_win32_registry" != xno; then
1255 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1256 [Define to 1 if installation paths should be looked up in Windows32
1257 Registry. Ignored on non windows32 hosts.])
1259 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1264 # Check if user specified a different registry key.
1265 case "x${enable_win32_registry}" in
1268 gcc_cv_win32_registry_key="$VERSION"
1271 # no registry lookup.
1272 gcc_cv_win32_registry_key=''
1275 # user-specified key.
1276 gcc_cv_win32_registry_key="$enable_win32_registry"
1280 if test "x$enable_win32_registry" != xno; then
1281 AC_MSG_CHECKING(registry key on windows hosts)
1282 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1283 [Define to be the last portion of registry key on windows hosts.])
1284 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1289 # Get an absolute path to the GCC top-level source directory
1290 holddir=`${PWDCMD-pwd}`
1292 topdir=`${PWDCMD-pwd}`
1295 # Conditionalize the makefile for this host machine.
1296 # Make-host contains the concatenation of all host makefile fragments
1297 # [there can be more than one]. This file is built by configure.frag.
1298 host_overrides=Make-host
1299 dep_host_xmake_file=
1300 for f in .. ${host_xmake_file}
1302 if test -f ${srcdir}/config/$f
1304 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1308 # Conditionalize the makefile for this target machine.
1309 # Make-target contains the concatenation of all host makefile fragments
1310 # [there can be more than one]. This file is built by configure.frag.
1311 target_overrides=Make-target
1313 for f in .. ${tmake_file}
1315 if test -f ${srcdir}/config/$f
1317 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1321 symbolic_link='ln -s'
1323 # If the host doesn't support symlinks, modify CC in
1324 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1325 # Otherwise, we can use "CC=$(CC)".
1327 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1329 cc_set_by_configure="\$(CC)"
1330 quoted_cc_set_by_configure="\$(CC)"
1331 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1332 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1335 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1337 symbolic_link="cp -p"
1341 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1342 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1343 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1344 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1348 out_object_file=`basename $out_file .c`.o
1351 for f in $tm_file; do
1354 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1356 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1357 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1362 for f in $tm_p_file; do
1365 tm_p_file_list="${tm_p_file_list} $f" ;;
1366 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1371 for f in $host_xm_file; do
1374 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1376 host_xm_file_list="${host_xm_file_list} $f" ;;
1378 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1379 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1384 for f in $build_xm_file; do
1387 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1388 auto-build.h | auto-host.h )
1389 build_xm_file_list="${build_xm_file_list} $f" ;;
1391 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1392 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1396 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1397 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1398 CROSS= AC_SUBST(CROSS)
1399 ALL=all.internal AC_SUBST(ALL)
1400 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1401 if test x$host != x$target
1403 CROSS="-DCROSS_COMPILE"
1405 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1406 case "$host","$target" in
1407 i?86-*-*,x86_64-*-* \
1408 | powerpc*-*-*,powerpc64*-*-*)
1409 CROSS="$CROSS -DNATIVE_CROSS" ;;
1411 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1412 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1413 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1416 # If this is a cross-compiler that does not
1417 # have its own set of headers then define
1420 # If this is using newlib, without having the headers available now,
1421 # then define inhibit_libc in LIBGCC2_CFLAGS.
1422 # This prevents libgcc2 from containing any code which requires libc
1425 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1426 test x$with_newlib = xyes ; } &&
1427 test "x$with_headers" = x ; then
1428 inhibit_libc=-Dinhibit_libc
1430 AC_SUBST(inhibit_libc)
1432 # When building gcc with a cross-compiler, we need to adjust things so
1433 # that the generator programs are still built with the native compiler.
1434 # Also, we cannot run fixincludes or fix-header.
1436 # These are the normal (build=host) settings:
1437 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1438 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1439 BUILD_CC='$(CC)' AC_SUBST(BUILD_CC)
1440 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1442 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1443 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1445 # And these apply if build != host.
1446 if test x$build != x$host
1449 BUILD_PREFIX_1=build-
1450 BUILD_CC='$(CC_FOR_BUILD)'
1451 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1453 if test "x$TARGET_SYSTEM_ROOT" = x; then
1459 # Expand extra_headers to include complete path.
1460 # This substitutes for lots of t-* files.
1462 if test "x$extra_headers" = x
1465 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1466 for file in $extra_headers;
1468 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1472 # Add a definition of USE_COLLECT2 if system wants one.
1473 case $use_collect2 in
1474 no) use_collect2= ;;
1477 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1478 xm_defines="${xm_defines} USE_COLLECT2"
1482 # Identify the assembler which will work hand-in-glove with the newly
1483 # built GCC, so that we can examine its features. This is the assembler
1484 # which will be driven by the driver program.
1486 # If build != host, and we aren't building gas in-tree, we identify a
1487 # build->target assembler and hope that it will have the same features
1488 # as the host->target assembler we'll be using.
1489 AC_MSG_CHECKING(what assembler to use)
1492 gcc_cv_gas_major_version=
1493 gcc_cv_gas_minor_version=
1494 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1495 if test -x "$DEFAULT_ASSEMBLER"; then
1496 gcc_cv_as="$DEFAULT_ASSEMBLER"
1497 elif test -x "$AS"; then
1499 elif test -x as$host_exeext; then
1500 # Build using assembler in the current directory.
1501 gcc_cv_as=./as$host_exeext
1502 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1503 && test -f ../gas/Makefile; then
1504 # Single tree build which includes gas.
1506 _gcc_COMPUTE_GAS_VERSION
1507 rm -f as$host_exeext
1508 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1511 if test "x$gcc_cv_as" = x; then
1512 # Search the same directories that the installed compiler will
1513 # search. Else we may find the wrong assembler and lose. If we
1514 # do not find a suitable assembler binary, then try the user's
1517 # Also note we have to check MD_EXEC_PREFIX before checking the
1518 # user's path. Unfortunately, there is no good way to get at the
1519 # value of MD_EXEC_PREFIX here. So we do a brute force search
1520 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1521 # to be fixed as part of the make/configure rewrite too.
1523 if test "x$exec_prefix" = xNONE; then
1524 if test "x$prefix" = xNONE; then
1525 test_prefix=/usr/local
1530 test_prefix=$exec_prefix
1533 # If the loop below does not find an assembler, then use whatever
1534 # one we can find in the users's path.
1536 if test "x$program_prefix" != xNONE; then
1537 gcc_cv_as=${program_prefix}as$host_exeext
1539 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1542 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1543 $test_prefix/lib/gcc-lib/$target_alias \
1544 /usr/lib/gcc/$target_alias/$gcc_version \
1545 /usr/lib/gcc/$target_alias \
1546 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1547 $test_prefix/$target_alias/bin"
1549 if test x$host = x$target; then
1550 test_dirs="$test_dirs \
1555 /bsd43/usr/lib/cmplrs/cc \
1556 /usr/cross64/usr/bin \
1557 /usr/lib/cmplrs/cc \
1558 /sysv/usr/lib/cmplrs/cc \
1559 /svr4/usr/lib/cmplrs/cc \
1563 for dir in $test_dirs; do
1564 if test -x $dir/as$host_exeext; then
1565 gcc_cv_as=$dir/as$host_exeext
1570 case $in_tree_gas in
1572 AC_MSG_RESULT("newly built gas")
1575 AC_MSG_RESULT($gcc_cv_as)
1579 # Identify the linker which will work hand-in-glove with the newly
1580 # built GCC, so that we can examine its features. This is the linker
1581 # which will be driven by the driver program.
1583 # If build != host, and we aren't building gas in-tree, we identify a
1584 # build->target linker and hope that it will have the same features
1585 # as the host->target linker we'll be using.
1586 AC_MSG_CHECKING(what linker to use)
1589 gcc_cv_gld_major_version=
1590 gcc_cv_gld_minor_version=
1591 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1592 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1593 if test -x "$DEFAULT_LINKER"; then
1594 gcc_cv_ld="$DEFAULT_LINKER"
1595 elif test -x "$LD"; then
1597 elif test -x collect-ld$host_exeext; then
1598 # Build using linker in the current directory.
1599 gcc_cv_ld=./collect-ld$host_exeext
1600 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1601 && test -f ../ld/Makefile; then
1602 # Single tree build which includes ld.
1604 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
1607 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1609 if test x$gcc_cv_gld_version != x; then
1614 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1615 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1617 rm -f collect-ld$host_exeext
1618 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1622 if test "x$gcc_cv_ld" = x; then
1623 # Search the same directories that the installed compiler will
1624 # search. Else we may find the wrong linker and lose. If we
1625 # do not find a suitable linker binary, then try the user's
1628 # Also note we have to check MD_EXEC_PREFIX before checking the
1629 # user's path. Unfortunately, there is no good way to get at the
1630 # value of MD_EXEC_PREFIX here. So we do a brute force search
1631 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1632 # to be fixed as part of the make/configure rewrite too.
1634 if test "x$exec_prefix" = xNONE; then
1635 if test "x$prefix" = xNONE; then
1636 test_prefix=/usr/local
1641 test_prefix=$exec_prefix
1644 # If the loop below does not find an linker, then use whatever
1645 # one we can find in the users's path.
1647 if test "x$program_prefix" != xNONE; then
1648 gcc_cv_ld=${program_prefix}ld$host_exeext
1650 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1653 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1654 $test_prefix/lib/gcc-lib/$target_alias \
1655 /usr/lib/gcc/$target_alias/$gcc_version \
1656 /usr/lib/gcc/$target_alias \
1657 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1658 $test_prefix/$target_alias/bin"
1660 if test x$host = x$target; then
1661 test_dirs="$test_dirs \
1666 /bsd43/usr/lib/cmplrs/cc \
1667 /usr/cross64/usr/bin \
1668 /usr/lib/cmplrs/cc \
1669 /sysv/usr/lib/cmplrs/cc \
1670 /svr4/usr/lib/cmplrs/cc \
1674 for dir in $test_dirs; do
1675 if test -x $dir/ld$host_exeext; then
1676 gcc_cv_ld=$dir/ld$host_exeext
1683 AC_MSG_RESULT("newly built ld")
1686 AC_MSG_RESULT($gcc_cv_ld)
1690 # Figure out what nm we will be using.
1691 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1692 AC_MSG_CHECKING(what nm to use)
1694 if test -x nm$host_exeext; then
1695 gcc_cv_nm=./nm$host_exeext
1696 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1697 && test -f ../binutils/Makefile; then
1698 # Single tree build which includes binutils.
1700 gcc_cv_nm=./nm$host_exeext
1701 rm -f nm$host_exeext
1702 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1703 elif test "x$program_prefix" != xNONE; then
1704 gcc_cv_nm=${program_prefix}nm$host_exeext
1706 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1709 yes) AC_MSG_RESULT("newly built nm") ;;
1710 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1713 # Figure out what objdump we will be using.
1714 AC_MSG_CHECKING(what objdump to use)
1716 if test -x objdump$host_exeext; then
1717 gcc_cv_objdump=./objdump$host_exeext
1718 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1719 && test -f ../binutils/Makefile; then
1720 # Single tree build which includes binutils.
1722 gcc_cv_objdump=./objdump$host_exeext
1723 rm -f objdump$host_exeext
1724 $symbolic_link ../binutils/objdump$host_exeext \
1725 objdump$host_exeext 2>/dev/null
1726 elif test "x$program_prefix" != xNONE; then
1727 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1729 gcc_cv_objdump=`echo objdump | \
1730 sed ${program_transform_name}`$host_exeext
1732 case $in_tree_objdump in
1733 yes) AC_MSG_RESULT("newly built objdump") ;;
1734 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1737 # Figure out what assembler alignment features are present.
1738 AC_MSG_CHECKING(assembler alignment features)
1739 gcc_cv_as_alignment_features=none
1740 if test $in_tree_gas = yes; then
1741 # Gas version 2.6 and later support for .balign and .p2align.
1742 gcc_GAS_VERSION_GTE_IFELSE(2,6,0,[
1743 gcc_cv_as_alignment_features=".balign and .p2align"
1744 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1746 # Gas version 2.8 and later support specifying the maximum
1747 # bytes to skip when using .p2align.
1748 gcc_GAS_VERSION_GTE_IFELSE(2,8,0,[
1749 gcc_cv_as_alignment_features=".p2align including maximum skip"
1750 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1752 elif test x$gcc_cv_as != x; then
1753 # Check if we have .balign and .p2align
1754 echo ".balign 4" > conftest.s
1755 echo ".p2align 2" >> conftest.s
1756 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1757 gcc_cv_as_alignment_features=".balign and .p2align"
1758 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1760 rm -f conftest.s conftest.o
1761 # Check if specifying the maximum bytes to skip when
1762 # using .p2align is supported.
1763 echo ".p2align 4,,7" > conftest.s
1764 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1765 gcc_cv_as_alignment_features=".p2align including maximum skip"
1766 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1768 rm -f conftest.s conftest.o
1770 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1772 AC_MSG_CHECKING(assembler subsection support)
1773 gcc_cv_as_subsections=no
1774 if test $in_tree_gas = yes ; then
1775 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
1776 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1777 gcc_cv_as_subsections="working .subsection -1"
1780 elif test x$gcc_cv_as != x; then
1781 # Check if we have .subsection
1782 echo ".subsection 1" > conftest.s
1783 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1784 gcc_cv_as_subsections=".subsection"
1785 if test x$gcc_cv_nm != x; then
1786 cat > conftest.s <<EOF
1787 conftest_label1: .word 0
1789 conftest_label2: .word 0
1792 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1793 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1794 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1795 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1798 gcc_cv_as_subsections="working .subsection -1"
1803 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1805 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1806 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1807 [Define if your assembler supports .subsection and .subsection -1 starts
1808 emitting at the beginning of your section.])
1810 AC_MSG_RESULT($gcc_cv_as_subsections)
1812 AC_MSG_CHECKING(assembler weak support)
1814 if test $in_tree_gas = yes ; then
1815 gcc_GAS_VERSION_GTE_IFELSE(2,2,0,[
1816 gcc_cv_as_weak="yes"
1818 elif test x$gcc_cv_as != x; then
1819 # Check if we have .weak
1820 echo " .weak foobar" > conftest.s
1821 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1822 gcc_cv_as_weak="yes"
1824 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1826 if test x"$gcc_cv_as_weak" = xyes; then
1827 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1829 AC_MSG_RESULT($gcc_cv_as_weak)
1831 AC_MSG_CHECKING(assembler hidden support)
1833 if test $in_tree_gas = yes ; then
1834 gcc_GAS_VERSION_GTE_IFELSE(2,12,1,[
1835 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1836 gcc_cv_as_hidden="yes"
1839 elif test x$gcc_cv_as != x; then
1840 # Check if we have .hidden
1841 echo " .hidden foobar" > conftest.s
1842 echo "foobar:" >> conftest.s
1843 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1844 gcc_cv_as_hidden="yes"
1846 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1848 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1849 # This is irritatingly difficult to feature test for. Look for
1850 # the date string after the version number.
1851 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1852 if echo "$ld_ver" | grep GNU > /dev/null; then
1854 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'`
1855 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1856 if test 0"$ld_date" -lt 20020404; then
1857 if test -n "$ld_date"; then
1858 # If there was date string, but was earlier than 2002-04-04, fail
1859 gcc_cv_as_hidden="no"
1860 elif test -z "$ld_vers"; then
1861 # If there was no date string nor ld version number, something is wrong
1862 gcc_cv_as_hidden="no"
1864 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1865 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1866 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1867 test -z "$ld_vers_patch" && ld_vers_patch=0
1868 if test "$ld_vers_major" -lt 2; then
1869 gcc_cv_as_hidden="no"
1870 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1871 gcc_cv_as_hidden="no"
1872 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1873 -a "$ld_vers_patch" -eq 0; then
1874 gcc_cv_as_hidden="no"
1883 if test x"$gnu_ld_flag" = x"no"; then
1884 # Even if using gas with .hidden support, the resulting object files
1885 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1886 # N64 linkers, the problem is that the linker refuses to accept
1887 # -call_shared (passed by default to the linker) and -r (used to
1888 # link the object file generated without .hidden directives with
1889 # one that hides symbols), so we also lose.
1894 if test x"$gcc_cv_as_hidden" = xyes; then
1895 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1896 [Define if your assembler supports .hidden.])
1898 AC_MSG_RESULT($gcc_cv_as_hidden)
1899 libgcc_visibility=$gcc_cv_as_hidden
1900 AC_SUBST(libgcc_visibility)
1902 AC_MSG_CHECKING(assembler leb128 support)
1904 if test $in_tree_gas = yes ; then
1905 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
1906 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1907 gcc_cv_as_leb128="yes"
1910 elif test x$gcc_cv_as != x; then
1911 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1912 cat > conftest.s <<EOF
1920 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1921 gcc_cv_as_leb128="yes"
1923 # GAS versions before 2.11 do not support uleb128,
1924 # despite appearing to.
1925 # ??? There exists an elf-specific test that will crash
1926 # the assembler. Perhaps it's better to figure out whether
1927 # arbitrary sections are supported and try the test.
1928 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1929 if echo "$as_ver" | grep GNU > /dev/null; then
1931 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1932 as_major=`echo $as_ver | sed 's/\..*//'`
1933 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1935 if test $as_major -eq 2 -a $as_minor -lt 11; then
1936 gcc_cv_as_leb128="no"
1940 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1942 if test x"$gcc_cv_as_leb128" = xyes; then
1943 AC_DEFINE(HAVE_AS_LEB128, 1,
1944 [Define if your assembler supports .uleb128.])
1946 AC_MSG_RESULT($gcc_cv_as_leb128)
1948 AC_MSG_CHECKING(assembler eh_frame optimization)
1949 gcc_cv_as_eh_frame=no
1950 if test $in_tree_gas = yes ; then
1951 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1952 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1953 gcc_cv_as_eh_frame="yes"
1956 elif test x$gcc_cv_as != x; then
1957 # Check if this is GAS.
1958 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1959 rm -f a.out 2> /dev/null
1960 if echo "$as_ver" | grep GNU > /dev/null; then
1961 # Versions up to and including 2.11.0 may mis-optimize
1962 # .eh_frame data. Try something.
1963 cat > conftest.s <<EOF
1970 .section .eh_frame,"aw",@progbits
1972 .4byte .LECIE1-.LSCIE1
1986 .4byte .LEFDE1-.LASFDE1
1988 .4byte .LASFDE1-__FRAME_BEGIN__
1997 cat > conftest.lit <<EOF
1998 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1999 0010 01000000 12000000 18000000 00000000 ................
2000 0020 08000000 04080000 0044 .........D
2002 cat > conftest.big <<EOF
2003 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2004 0010 00000001 00000012 00000018 00000000 ................
2005 0020 00000008 04000000 0844 .........D
2007 # If the assembler didn't choke, and we can objdump,
2008 # and we got the correct data, then succeed.
2009 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2010 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2011 | tail -3 > conftest.got \
2012 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2013 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2015 gcc_cv_as_eh_frame="yes"
2017 gcc_cv_as_eh_frame="bad"
2018 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
2019 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2020 [Define if your assembler mis-optimizes .eh_frame data.])
2026 AC_MSG_RESULT($gcc_cv_as_eh_frame)
2028 AC_MSG_CHECKING(assembler section merging support)
2029 gcc_cv_as_shf_merge=no
2030 if test $in_tree_gas = yes ; then
2031 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2032 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
2033 gcc_cv_as_shf_merge=yes
2036 elif test x$gcc_cv_as != x; then
2037 # Check if we support SHF_MERGE sections
2038 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
2039 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
2040 gcc_cv_as_shf_merge=yes
2042 rm -f conftest.s conftest.o
2044 if test x"$gcc_cv_as_shf_merge" = xyes; then
2045 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
2046 [Define if your assembler supports marking sections with SHF_MERGE flag.])
2048 AC_MSG_RESULT($gcc_cv_as_shf_merge)
2050 AC_MSG_CHECKING(assembler thread-local storage support)
2059 .section ".tdata","awT",@progbits
2062 ldq $27,__tls_get_addr($29) !literal!1
2063 lda $16,foo($29) !tlsgd!1
2064 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2065 ldq $27,__tls_get_addr($29) !literal!2
2066 lda $16,foo($29) !tlsldm!2
2067 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2068 ldq $1,foo($29) !gotdtprel
2069 ldah $2,foo($29) !dtprelhi
2070 lda $3,foo($2) !dtprello
2071 lda $4,foo($29) !dtprel
2072 ldq $1,foo($29) !gottprel
2073 ldah $2,foo($29) !tprelhi
2074 lda $3,foo($2) !tprello
2075 lda $4,foo($29) !tprel'
2082 .section ".tdata","awT",@progbits
2086 leal foo@TLSGD(,%ebx,1), %eax
2087 leal foo@TLSLDM(%ebx), %eax
2088 leal foo@DTPOFF(%eax), %edx
2089 movl foo@GOTTPOFF(%ebx), %eax
2090 subl foo@GOTTPOFF(%ebx), %eax
2091 addl foo@GOTNTPOFF(%ebx), %eax
2092 movl foo@INDNTPOFF, %eax
2093 movl $foo@TPOFF, %eax
2094 subl $foo@TPOFF, %eax
2095 leal foo@NTPOFF(%ecx), %eax'
2101 .section ".tdata","awT",@progbits
2105 leaq foo@TLSGD(%rip), %rdi
2106 leaq foo@TLSLD(%rip), %rdi
2107 leaq foo@DTPOFF(%rax), %rdx
2108 movq foo@GOTTPOFF(%rip), %rax
2109 movq $foo@TPOFF, %rax'
2115 .section ".tdata","awT",@progbits
2118 addl r16 = @ltoff(@dtpmod(foo#)), gp
2119 addl r17 = @ltoff(@dtprel(foo#)), gp
2120 addl r18 = @ltoff(@tprel(foo#)), gp
2121 addl r19 = @dtprel(foo#), gp
2122 adds r21 = @dtprel(foo#), r13
2123 movl r23 = @dtprel(foo#)
2124 addl r20 = @tprel(foo#), gp
2125 adds r22 = @tprel(foo#), r13
2126 movl r24 = @tprel(foo#)'
2132 .section ".tdata","awT",@progbits
2140 addi 3,31,ld0@got@tlsgd
2142 addi 3,31,x1@got@tlsld
2145 addis 9,3,x2@dtprel@ha
2146 addi 9,9,x2@dtprel@l
2147 lwz 9,x3@got@tprel(31)
2150 addis 9,2,x2@tprel@ha
2151 addi 9,9,x2@tprel@l'
2157 .section ".tdata","awT",@progbits
2165 addi 3,2,ld0@got@tlsgd
2171 addi 3,2,x1@got@tlsld
2177 addis 9,3,x2@dtprel@ha
2178 addi 9,9,x2@dtprel@l
2181 ld 9,x3@got@dtprel(2)
2190 .section ".tdata","awT",@progbits
2199 l %r1,foo@GOTNTPOFF(%r12)
2200 l %r1,0(%r1):tls_load:foo
2201 bas %r14,0(%r1,%r13):tls_gdcall:foo
2202 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2208 .section ".tdata","awT",@progbits
2216 lg %r1,foo@GOTNTPOFF(%r12)
2217 larl %r1,foo@INDNTPOFF
2218 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2219 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2224 if test -z "$tls_first_major"; then
2226 elif test $in_tree_gas = yes ; then
2227 gcc_GAS_VERSION_GTE_IFELSE($tls_first_major,$tls_first_minor,0,[
2230 elif test x$gcc_cv_as != x; then
2231 echo "$conftest_s" > conftest.s
2232 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2236 rm -f conftest.s conftest.o
2238 if test "$gcc_cv_as_tls" = yes; then
2239 AC_DEFINE(HAVE_AS_TLS, 1,
2240 [Define if your assembler supports thread-local storage.])
2242 AC_MSG_RESULT($gcc_cv_as_tls)
2245 # All TARGET_ABI_OSF targets.
2246 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2247 AC_CACHE_CHECK([assembler supports explicit relocations],
2248 gcc_cv_as_explicit_relocs, [
2249 gcc_cv_as_explicit_relocs=unknown
2250 if test $in_tree_gas = yes ; then
2251 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2252 gcc_cv_as_explicit_relocs=yes
2254 elif test x$gcc_cv_as != x; then
2255 cat > conftest.s << 'EOF'
2258 extbl $3, $2, $3 !lituse_bytoff!1
2259 ldq $2, a($29) !literal!1
2260 ldq $4, b($29) !literal!2
2261 ldq_u $3, 0($2) !lituse_base!1
2262 ldq $27, f($29) !literal!5
2263 jsr $26, ($27), f !lituse_jsr!5
2264 ldah $29, 0($26) !gpdisp!3
2265 lda $0, c($29) !gprel
2266 ldah $1, d($29) !gprelhigh
2267 lda $1, d($1) !gprellow
2268 lda $29, 0($29) !gpdisp!3
2270 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2271 gcc_cv_as_explicit_relocs=yes
2273 gcc_cv_as_explicit_relocs=no
2275 rm -f conftest.s conftest.o
2278 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2279 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2280 [Define if your assembler supports explicit relocations.])
2284 AC_CACHE_CHECK([assembler .register pseudo-op support],
2285 gcc_cv_as_register_pseudo_op, [
2286 gcc_cv_as_register_pseudo_op=unknown
2287 if test x$gcc_cv_as != x; then
2288 # Check if we have .register
2289 echo ".register %g2, #scratch" > conftest.s
2290 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2291 gcc_cv_as_register_pseudo_op=yes
2293 gcc_cv_as_register_pseudo_op=no
2295 rm -f conftest.s conftest.o
2298 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2299 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2300 [Define if your assembler supports .register.])
2303 AC_CACHE_CHECK([assembler supports -relax],
2304 gcc_cv_as_relax_opt, [
2305 gcc_cv_as_relax_opt=unknown
2306 if test x$gcc_cv_as != x; then
2307 # Check if gas supports -relax
2308 echo ".text" > conftest.s
2309 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2310 gcc_cv_as_relax_opt=yes
2312 gcc_cv_as_relax_opt=no
2314 rm -f conftest.s conftest.o
2317 if test "x$gcc_cv_as_relax_opt" = xyes; then
2318 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2319 [Define if your assembler supports -relax option.])
2322 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2323 gcc_cv_as_sparc_ua_pcrel, [
2324 gcc_cv_as_sparc_ua_pcrel=unknown
2325 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2326 gcc_cv_as_sparc_ua_pcrel=no
2327 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2328 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2329 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2330 gcc_cv_as_sparc_ua_pcrel=yes
2332 rm -f conftest.s conftest.o conftest
2335 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2336 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2337 [Define if your assembler and linker support unaligned PC relative relocs.])
2340 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2341 gcc_cv_as_sparc_ua_pcrel_hidden, [
2342 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2343 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2344 if test x$gcc_cv_objdump != x; then
2345 gcc_cv_as_sparc_ua_pcrel_hidden=no
2346 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2347 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2348 echo "foo: .skip 4" >> conftest.s
2349 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2350 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2351 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2352 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2353 if $gcc_cv_objdump -R conftest 2> /dev/null \
2354 | grep 'DISP32' > /dev/null 2>&1; then
2357 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2361 rm -f conftest.s conftest.o conftest
2363 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2366 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2367 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2368 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2371 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2372 gcc_cv_as_offsetable_lo10, [
2373 gcc_cv_as_offsetable_lo10=unknown
2374 if test "x$gcc_cv_as" != x; then
2375 # Check if assembler has offsetable %lo()
2376 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2377 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2378 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2380 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2381 > /dev/null 2>&1; then
2382 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2383 gcc_cv_as_offsetable_lo10=no
2385 gcc_cv_as_offsetable_lo10=yes
2388 gcc_cv_as_offsetable_lo10=no
2390 rm -f conftest.s conftest.o conftest1.s conftest1.o
2393 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2394 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2395 [Define if your assembler supports offsetable %lo().])
2401 i[34567]86-*-* | x86_64-*-*)
2403 AC_MSG_CHECKING(assembler instructions)
2404 gcc_cv_as_instructions=
2405 if test $in_tree_gas = yes ; then
2406 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
2407 gcc_cv_as_instructions="filds fists"
2409 elif test x$gcc_cv_as != x; then
2410 set "filds fists" "filds mem; fists mem"
2413 echo "$2" > conftest.s
2414 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2415 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2419 rm -f conftest.s conftest.o
2421 if test x"$gcc_cv_as_instructions" != x; then
2422 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2424 AC_MSG_RESULT($gcc_cv_as_instructions)
2426 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2427 gcc_cv_as_gotoff_in_data=no
2428 if test $in_tree_gas = yes ; then
2429 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2430 gcc_cv_as_gotoff_in_data=yes
2432 elif test x$gcc_cv_as != x; then
2433 cat > conftest.s <<EOF
2440 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2441 gcc_cv_as_gotoff_in_data=yes
2444 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2445 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2446 [Define true if the assembler supports '.long foo@GOTOFF'.])
2447 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2451 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2452 gcc_cv_as_ltoffx_ldxmov_relocs, [
2453 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2454 if test $in_tree_gas = yes ; then
2455 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2456 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2458 elif test x$gcc_cv_as != x; then
2459 cat > conftest.s << 'EOF'
2462 addl r15 = @ltoffx(x#), gp
2464 ld8.mov r16 = [r15], x#
2467 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2468 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2470 gcc_cv_as_ltoffx_ldxmov_relocs=no
2472 rm -f conftest.s conftest.o
2475 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2476 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2477 [Define if your assembler supports ltoffx and ldxmov relocations.])
2482 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2483 gcc_cv_as_dwarf2_debug_line=no
2484 # ??? Not all targets support dwarf2 debug_line, even within a version
2485 # of gas. Moreover, we need to emit a valid instruction to trigger any
2486 # info to the output file. So, as supported targets are added to gas 2.11,
2487 # add some instruction here to (also) show we expect this might work.
2488 # ??? Once 2.11 is released, probably need to add first known working
2489 # version to the per-target configury.
2491 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2492 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* | xstormy16*-*-*)
2499 if test $in_tree_gas = yes ; then
2500 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2501 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2502 && test x"$insn" != x ; then
2503 gcc_cv_as_dwarf2_debug_line="yes"
2506 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2507 echo ' .file 1 "conftest.s"' > conftest.s
2508 echo ' .loc 1 3 0' >> conftest.s
2509 echo " $insn" >> conftest.s
2510 # ??? This fails with non-gnu grep.
2511 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2512 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2513 # The .debug_line file table must be in the exact order that
2514 # we specified the files, since these indices are also used
2515 # by DW_AT_decl_file. Approximate this test by testing if
2516 # the assembler bitches if the same index is assigned twice.
2517 echo ' .file 1 "foo.s"' > conftest.s
2518 echo ' .file 1 "bar.s"' >> conftest.s
2519 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2521 gcc_cv_as_dwarf2_debug_line="no"
2523 gcc_cv_as_dwarf2_debug_line="yes"
2526 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2528 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2529 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2530 [Define if your assembler supports dwarf2 .file/.loc directives,
2531 and preserves file table indices exactly as given.])
2533 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2535 AC_MSG_CHECKING(assembler --gdwarf2 support)
2536 gcc_cv_as_gdwarf2_flag=no
2537 if test $in_tree_gas = yes ; then
2538 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2539 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2540 && test x"$insn" != x ; then
2541 gcc_cv_as_gdwarf2_flag="yes"
2544 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2545 echo '' > conftest.s
2546 # ??? This fails with non-gnu grep.
2547 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2549 gcc_cv_as_gdwarf2_flag="yes"
2551 rm -f conftest.s conftest.o
2553 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2554 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2555 [Define if your assembler supports the --gdwarf2 option.])
2557 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2559 AC_MSG_CHECKING(assembler --gstabs support)
2560 gcc_cv_as_gstabs_flag=no
2561 if test $in_tree_gas = yes ; then
2562 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2563 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2564 && test x"$insn" != x ; then
2565 gcc_cv_as_gstabs_flag="yes"
2568 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2569 echo '' > conftest.s
2570 # ??? This fails with non-gnu grep.
2571 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2572 gcc_cv_as_gstabs_flag="yes"
2574 rm -f conftest.s conftest.o
2576 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2577 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2578 [Define if your assembler supports the --gstabs option.])
2580 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2582 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2583 gcc_cv_ld_ro_rw_mix=unknown
2584 if test $in_tree_ld = yes ; then
2585 if test "$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
2586 gcc_cv_ld_ro_rw_mix=read-write
2588 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2589 echo '.section "myfoosect", "a"' > conftest1.s
2590 echo '.section "myfoosect", "aw"' > conftest2.s
2591 echo '.byte 1' >> conftest2.s
2592 echo '.section "myfoosect", "a"' > conftest3.s
2593 echo '.byte 0' >> conftest3.s
2594 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2595 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2596 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2597 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2598 conftest2.o conftest3.o; then
2599 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2600 | grep -A1 myfoosect`
2601 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2602 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2603 gcc_cv_ld_ro_rw_mix=read-only
2605 gcc_cv_ld_ro_rw_mix=read-write
2610 rm -f conftest.* conftest[123].*
2613 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2614 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2615 [Define if your linker links a mix of read-only
2616 and read-write sections into a read-write section.])
2618 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2620 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2621 gcc_cv_ld_eh_frame_hdr=no
2622 if test $in_tree_ld = yes ; then
2623 if test "$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
2624 gcc_cv_ld_eh_frame_hdr=yes
2626 elif test x$gcc_cv_ld != x; then
2627 # Check if linker supports --eh-frame-hdr option
2628 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2629 gcc_cv_ld_eh_frame_hdr=yes
2632 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2633 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2634 [Define if your linker supports --eh-frame-hdr option.])
2636 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2638 AC_MSG_CHECKING(linker position independent executable support)
2640 if test $in_tree_ld = yes ; then
2641 if test "$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
2644 elif test x$gcc_cv_ld != x; then
2645 # Check if linker supports -pie option
2646 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2650 if test x"$gcc_cv_ld_pie" = xyes; then
2651 AC_DEFINE(HAVE_LD_PIE, 1,
2652 [Define if your linker supports -pie option.])
2654 AC_MSG_RESULT($gcc_cv_ld_pie)
2656 # Miscellaneous target-specific checks.
2659 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2660 gcc_cv_mips_libgloss_startup=no
2661 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2662 if test "x$exec_prefix" = xNONE; then
2663 if test "x$prefix" = xNONE; then
2664 test_prefix=/usr/local
2669 test_prefix=$exec_prefix
2671 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2673 if grep '^STARTUP' $f > /dev/null 2>&1; then
2674 gcc_cv_mips_libgloss_startup=yes
2678 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2679 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2680 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2682 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2684 AC_MSG_CHECKING(whether the assembler has explicit relocation support)
2685 if test x$gcc_cv_mips_explicit_relocs = x; then
2686 gcc_cv_mips_explicit_relocs=no
2687 if test x$gcc_cv_as != x; then
2688 echo ' lw $4,%gp_rel(foo)($4)' > conftest.s
2689 if $gcc_cv_as conftest.s -o conftest.o > /dev/null 2>&1; then
2690 gcc_cv_mips_explicit_relocs=yes
2692 rm -f conftest.s conftest.o
2695 if test $gcc_cv_mips_explicit_relocs = yes; then
2696 test x$target_cpu_default != x || target_cpu_default=0
2697 target_cpu_default="(${target_cpu_default}|MASK_EXPLICIT_RELOCS)"
2699 AC_MSG_RESULT($gcc_cv_mips_explicit_relocs)
2703 if test x$with_sysroot = x && test x$host = x$target \
2704 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2705 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2708 # Figure out what language subdirectories are present.
2709 # Look if the user specified --enable-languages="..."; if not, use
2710 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2712 # NB: embedded tabs in this IF block -- do not untabify
2713 if test x"${enable_languages+set}" != xset; then
2714 if test x"${LANGUAGES+set}" = xset; then
2715 enable_languages="${LANGUAGES}"
2716 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2719 enable_languages=all
2722 if test x"${enable_languages}" = x \
2723 || test x"${enable_languages}" = xyes;
2725 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2728 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2730 # First scan to see if an enabled language requires some other language.
2731 # We assume that a given config-lang.in will list all the language
2732 # front ends it requires, even if some are required indirectly.
2733 for lang in ${srcdir}/*/config-lang.in ..
2738 # The odd quoting in the next line works around
2739 # an apparent bug in bash 1.12 on linux.
2741 ${srcdir}/[*]/config-lang.in)
2744 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2745 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2746 for other in $this_lang_requires
2748 case ,${enable_languages}, in
2754 enable_languages="$enable_languages,$other"
2763 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2766 for lang in ${srcdir}/*/config-lang.in ..
2770 # The odd quoting in the next line works around
2771 # an apparent bug in bash 1.12 on linux.
2773 ${srcdir}/[*]/config-lang.in) ;;
2775 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2776 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2777 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2778 if test "x$lang_alias" = x
2780 echo "$lang doesn't set \$language." 1>&2
2783 case ${build_by_default},${enable_languages}, in
2784 *,$lang_alias,*) add_this_lang=yes ;;
2785 no,*) add_this_lang=no ;;
2786 *,all,*) add_this_lang=yes ;;
2787 *) add_this_lang=no ;;
2789 found_languages="${found_languages} ${lang_alias}"
2790 if test x"${add_this_lang}" = xyes; then
2792 ${srcdir}/ada/config-lang.in)
2793 if test x$have_gnat = xyes ; then
2794 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2798 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2808 for expected_language in ${expected_languages} ..
2810 if test "${expected_language}" != ..; then
2811 missing_language="${expected_language}"
2812 if test "${expected_language}" = "c" \
2813 || test "${expected_language}" = "all"; then
2816 for found_language in ${found_languages} ..
2818 if test "${found_language}" != ..; then
2819 if test "${expected_language}" = "${found_language}"; then
2824 if test "x${missing_language}" != x; then
2825 missing_languages="${missing_languages} ${missing_language}"
2830 if test "x$missing_languages" != x; then
2832 The following requested languages were not found:${missing_languages}
2833 The following languages were available: c${found_languages}])
2836 # Make gthr-default.h if we have a thread file.
2838 if test $thread_file != single; then
2839 rm -f gthr-default.h
2840 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2841 gthread_flags=-DHAVE_GTHR_DEFAULT
2843 AC_SUBST(gthread_flags)
2845 # Find out what GC implementation we want, or may, use.
2847 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2854 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2859 echo "Using $GGC for garbage collection."
2861 # Use the system's zlib library.
2863 zlibinc="-I\$(srcdir)/../zlib"
2864 AC_ARG_WITH(system-zlib,
2865 [ --with-system-zlib use installed libz],
2872 dnl Very limited version of automake's enable-maintainer-mode
2874 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2875 dnl maintainer-mode is disabled by default
2876 AC_ARG_ENABLE(maintainer-mode,
2877 [ --enable-maintainer-mode
2878 enable make rules and dependencies not useful
2879 (and sometimes confusing) to the casual installer],
2880 maintainer_mode=$enableval,
2883 AC_MSG_RESULT($maintainer_mode)
2885 if test "$maintainer_mode" = "yes"; then
2892 # Make empty files to contain the specs and options for each language.
2893 # Then add #include lines to for a compiler that has specs and/or options.
2898 for subdir in . $subdirs
2900 if test -f $srcdir/$subdir/lang-specs.h; then
2901 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2903 if test -f $srcdir/$subdir/lang-options.h; then
2904 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2906 if test -f $srcdir/$subdir/$subdir-tree.def; then
2907 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2911 # These (without "all_") are set in each config-lang.in.
2912 # `language' must be a single word so is spelled singularly.
2917 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2918 # List of language makefile fragments.
2920 # Files for gengtype
2921 all_gtfiles="$target_gtfiles"
2922 # Files for gengtype with language
2923 all_gtfiles_files_langs=
2924 all_gtfiles_files_files=
2926 # Add the language fragments.
2927 # Languages are added via two mechanisms. Some information must be
2928 # recorded in makefile variables, these are defined in config-lang.in.
2929 # We accumulate them and plug them into the main Makefile.
2930 # The other mechanism is a set of hooks for each of the main targets
2931 # like `clean', `install', etc.
2933 language_fragments="Make-lang"
2934 language_hooks="Make-hooks"
2936 for s in .. $subdirs
2946 . ${srcdir}/$s/config-lang.in
2947 if test "x$language" = x
2949 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2952 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2953 if test -f ${srcdir}/$s/Makefile.in
2954 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2956 all_languages="$all_languages $language"
2957 if test "x$boot_language" = xyes
2959 all_boot_languages="$all_boot_languages $language"
2961 all_compilers="$all_compilers $compilers"
2962 all_stagestuff="$all_stagestuff $stagestuff"
2963 all_outputs="$all_outputs $outputs"
2964 all_gtfiles="$all_gtfiles $gtfiles"
2965 for f in .. $gtfiles
2969 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2970 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2976 # Pick up gtfiles for c
2979 . ${srcdir}/c-config-lang.in
2980 all_gtfiles="$all_gtfiles $gtfiles"
2981 for f in .. $gtfiles
2985 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2986 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2991 for language in .. $all_languages
2993 if test $language != ".."
2995 check_languages="$check_languages check-$language"
2999 # Since we can't use `::' targets, we link each language in
3000 # with a set of hooks, reached indirectly via lang.${target}.
3004 target_list="all.build all.cross start.encap rest.encap tags \
3005 info dvi generated-manpages \
3006 install-normal install-common install-info install-man \
3008 mostlyclean clean distclean extraclean maintainer-clean \
3009 stage1 stage2 stage3 stage4"
3010 for t in $target_list
3013 for lang in .. $all_languages
3015 if test $lang != ".."; then
3019 echo "lang.$t: $x" >> Make-hooks
3024 echo "dir ." > .gdbinit
3025 echo "dir ${srcdir}" >> .gdbinit
3026 if test x$gdb_needs_out_file_path = xyes
3028 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3030 if test "x$subdirs" != x; then
3033 echo "dir ${srcdir}/$s" >> .gdbinit
3036 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3038 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3039 # absolute path for gcc_tooldir based on inserting the number of up-directory
3040 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3041 # $(libsubdir)/@(unlibsubdir) based path.
3042 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3043 # make and thus we'd get different behavior depending on where we built the
3045 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3046 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
3048 changequote(<<, >>)dnl
3049 # An explanation of the sed strings:
3050 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3051 # -e 's|/$||' match a trailing forward slash and eliminates it
3052 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3053 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3055 # (*) Note this pattern overwrites the first character of the string
3056 # with a forward slash if one is not already present. This is not a
3057 # problem because the exact names of the sub-directories concerned is
3058 # unimportant, just the number of them matters.
3060 # The practical upshot of these patterns is like this:
3062 # prefix exec_prefix result
3063 # ------ ----------- ------
3065 # /foo/ /foo/bar ../
3066 # /foo /foo/bar/ ../
3067 # /foo/ /foo/bar/ ../
3068 # /foo /foo/bar/ugg ../../
3071 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
3072 changequote([, ])dnl
3074 AC_SUBST(gcc_tooldir)
3077 # Find a directory in which to install a shared libgcc.
3079 AC_ARG_ENABLE(version-specific-runtime-libs,
3080 [ --enable-version-specific-runtime-libs
3081 specify that runtime libraries should be
3082 installed in a compiler-specific directory])
3084 AC_ARG_WITH(slibdir,
3085 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3086 slibdir="$with_slibdir",
3087 if test "${enable_version_specific_runtime_libs+set}" = set; then
3088 slibdir='$(libsubdir)'
3089 elif test "$host" != "$target"; then
3090 slibdir='$(build_tooldir)/lib'
3096 objdir=`${PWDCMD-pwd}`
3099 # Process the language and host/target makefile fragments.
3100 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
3102 # Substitute configuration variables
3105 AC_SUBST(all_boot_languages)
3106 AC_SUBST(all_compilers)
3107 AC_SUBST(all_gtfiles)
3108 AC_SUBST(all_gtfiles_files_langs)
3109 AC_SUBST(all_gtfiles_files_files)
3110 AC_SUBST(all_lang_makefiles)
3111 AC_SUBST(all_languages)
3112 AC_SUBST(all_stagestuff)
3113 AC_SUBST(build_exeext)
3114 AC_SUBST(build_install_headers_dir)
3115 AC_SUBST(build_xm_file_list)
3116 AC_SUBST(build_xm_file)
3117 AC_SUBST(build_xm_defines)
3118 AC_SUBST(check_languages)
3119 AC_SUBST(cc_set_by_configure)
3120 AC_SUBST(quoted_cc_set_by_configure)
3121 AC_SUBST(cpp_install_dir)
3122 AC_SUBST(dep_host_xmake_file)
3123 AC_SUBST(dep_tmake_file)
3124 AC_SUBST(extra_headers_list)
3125 AC_SUBST(extra_objs)
3126 AC_SUBST(extra_parts)
3127 AC_SUBST(extra_passes)
3128 AC_SUBST(extra_programs)
3129 AC_SUBST(float_h_file)
3130 AC_SUBST(gcc_config_arguments)
3131 AC_SUBST(gcc_gxx_include_dir)
3132 AC_SUBST(libstdcxx_incdir)
3133 AC_SUBST(gcc_version)
3134 AC_SUBST(gcc_version_full)
3135 AC_SUBST(gcc_version_trigger)
3136 AC_SUBST(host_exeext)
3137 AC_SUBST(host_extra_gcc_objs)
3138 AC_SUBST(host_xm_file_list)
3139 AC_SUBST(host_xm_file)
3140 AC_SUBST(host_xm_defines)
3141 AC_SUBST(out_host_hook_obj)
3143 AC_SUBST(lang_options_files)
3144 AC_SUBST(lang_specs_files)
3145 AC_SUBST(lang_tree_files)
3146 AC_SUBST(local_prefix)
3148 AC_SUBST(objc_boehm_gc)
3150 AC_SUBST(out_object_file)
3151 AC_SUBST(stage_prefix_set_by_configure)
3152 AC_SUBST(quoted_stage_prefix_set_by_configure)
3153 AC_SUBST(symbolic_link)
3154 AC_SUBST(thread_file)
3155 AC_SUBST(tm_file_list)
3157 AC_SUBST(tm_defines)
3158 AC_SUBST(tm_p_file_list)
3161 AC_SUBST(xm_defines)
3162 AC_SUBST(target_alias)
3163 AC_SUBST(c_target_objs)
3164 AC_SUBST(cxx_target_objs)
3165 AC_SUBST(target_cpu_default)
3167 AC_SUBST_FILE(target_overrides)
3168 AC_SUBST_FILE(host_overrides)
3169 AC_SUBST_FILE(language_fragments)
3170 AC_SUBST_FILE(language_hooks)
3172 # Echo that links are built
3173 if test x$host = x$target
3181 if test x$host != x$build
3183 str3=" on a $build system"
3186 if test "x$str2" != x || test "x$str3" != x
3191 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3193 if test "x$str2" != x || test "x$str3" != x
3195 echo " ${str2}${str3}." 1>&2
3198 # Truncate the target if necessary
3199 if test x$host_truncate_target != x; then
3200 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
3203 # Configure the subdirectories
3204 # AC_CONFIG_SUBDIRS($subdirs)
3206 # Create the Makefile
3207 # and configure language subdirectories
3208 AC_OUTPUT($all_outputs,
3210 case x$CONFIG_HEADERS in
3211 xauto-host.h:config.in)
3214 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3215 # bootstrapping and the installation procedure can still use
3216 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3217 # FLAGS_TO_PASS has been modified to solve the problem there.
3218 # This is virtually a duplicate of what happens in configure.lang; we do
3219 # an extra check to make sure this only happens if ln -s can be used.
3220 if test "$symbolic_link" = "ln -s"; then
3221 for d in .. ${subdirs} fixinc ; do
3222 if test $d != ..; then
3223 STARTDIR=`${PWDCMD-pwd}`
3225 for t in stage1 stage2 stage3 stage4 include
3228 $symbolic_link ../$t $t 2>/dev/null
3234 # Avoid having to add intl to our include paths.
3235 if test -f intl/libintl.h; then
3236 echo creating libintl.h
3237 echo '#include "intl/libintl.h"' >libintl.h
3241 symbolic_link='$symbolic_link'