2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
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, 51 Franklin Street, Fifth Floor, Boston, MA
24 # --------------------------------
25 # Initialization and sanity checks
26 # --------------------------------
30 AC_CONFIG_SRCDIR(tree.c)
31 AC_CONFIG_HEADER(auto-host.h:config.in)
33 gcc_version=`cat $srcdir/BASE-VER`
35 # Determine the host, build, and target systems
40 # Determine the noncanonical target name, for directory use.
41 ACX_NONCANONICAL_TARGET
43 # Determine the target- and build-specific subdirectories
46 # Set program_transform_name
49 # Check for bogus environment variables.
50 # Test if LIBRARY_PATH contains the notation for the current directory
51 # since this would lead to problems installing/building glibc.
52 # LIBRARY_PATH contains the current directory if one of the following
54 # - one of the terminals (":" and ";") is the first or last sign
55 # - two terminals occur directly after each other
56 # - the path contains an element with a dot in it
57 AC_MSG_CHECKING(LIBRARY_PATH variable)
59 case ${LIBRARY_PATH} in
60 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
61 library_path_setting="contains current directory"
64 library_path_setting="ok"
68 AC_MSG_RESULT($library_path_setting)
69 if test "$library_path_setting" != "ok"; then
71 *** LIBRARY_PATH shouldn't contain the current directory when
72 *** building gcc. Please change the environment variable
73 *** and run configure again.])
76 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
77 # since this would lead to problems installing/building glibc.
78 # GCC_EXEC_PREFIX contains the current directory if one of the following
80 # - one of the terminals (":" and ";") is the first or last sign
81 # - two terminals occur directly after each other
82 # - the path contains an element with a dot in it
83 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
85 case ${GCC_EXEC_PREFIX} in
86 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
87 gcc_exec_prefix_setting="contains current directory"
90 gcc_exec_prefix_setting="ok"
94 AC_MSG_RESULT($gcc_exec_prefix_setting)
95 if test "$gcc_exec_prefix_setting" != "ok"; then
97 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
98 *** building gcc. Please change the environment variable
99 *** and run configure again.])
106 # Specify the local prefix
108 AC_ARG_WITH(local-prefix,
109 [ --with-local-prefix=DIR specifies directory to put local include],
110 [case "${withval}" in
111 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
113 *) local_prefix=$with_local_prefix ;;
116 # Default local prefix if it is empty
117 if test x$local_prefix = x; then
118 local_prefix=/usr/local
121 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
122 # passed in by the toplevel make and thus we'd get different behavior
123 # depending on where we built the sources.
125 # Specify the g++ header file directory
126 AC_ARG_WITH(gxx-include-dir,
127 [ --with-gxx-include-dir=DIR
128 specifies directory to put g++ header files],
129 [case "${withval}" in
130 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
132 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
135 # This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO.
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='${libsubdir}/include/c++'
140 libstdcxx_incdir='include/c++/$(version)'
141 if test x$host != x$target; then
142 libstdcxx_incdir="$target_alias/$libstdcxx_incdir"
144 changequote(<<, >>)dnl
145 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/$libstdcxx_incdir"
150 AC_ARG_WITH(cpp_install_dir,
151 [ --with-cpp-install-dir=DIR
152 install the user visible C preprocessor in DIR
153 (relative to PREFIX) as well as PREFIX/bin],
154 [if test x$withval = xyes; then
155 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
156 elif test x$withval != xno; then
157 cpp_install_dir=$withval
160 # We would like to our source tree to be readonly. However when releases or
161 # pre-releases are generated, the flex/bison generated files as well as the
162 # various formats of manuals need to be included along with the rest of the
163 # sources. Therefore we have --enable-generated-files-in-srcdir to do
166 AC_MSG_CHECKING([whether to place generated files in the source directory])
167 dnl generated-files-in-srcdir is disabled by default
168 AC_ARG_ENABLE(generated-files-in-srcdir,
169 [ --enable-generated-files-in-srcdir
170 put copies of generated files in source dir
171 intended for creating source tarballs for users
172 without texinfo bison or flex.],
173 generated_files_in_srcdir=$enableval,
174 generated_files_in_srcdir=no)
176 AC_MSG_RESULT($generated_files_in_srcdir)
178 if test "$generated_files_in_srcdir" = "yes"; then
185 # -------------------
186 # Find default linker
187 # -------------------
191 [ --with-gnu-ld arrange to work with GNU ld.],
192 gnu_ld_flag="$with_gnu_ld",
195 # With pre-defined ld
197 [ --with-ld arrange to use the specified ld (full pathname)],
198 DEFAULT_LINKER="$with_ld")
199 if test x"${DEFAULT_LINKER+set}" = x"set"; then
200 if test ! -x "$DEFAULT_LINKER"; then
201 AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
202 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
205 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
206 [Define to enable the use of a default linker.])
209 AC_MSG_CHECKING([whether a default linker was specified])
210 if test x"${DEFAULT_LINKER+set}" = x"set"; then
211 if test x"$gnu_ld_flag" = x"no"; then
212 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
214 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
220 # With demangler in GNU ld
221 AC_ARG_WITH(demangler-in-ld,
222 [ --with-demangler-in-ld try to use demangler in GNU ld.],
223 demangler_in_ld="$with_demangler_in_ld",
226 # ----------------------
227 # Find default assembler
228 # ----------------------
232 [ --with-gnu-as arrange to work with GNU as],
233 gas_flag="$with_gnu_as",
237 [ --with-as arrange to use the specified as (full pathname)],
238 DEFAULT_ASSEMBLER="$with_as")
239 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
240 if test ! -x "$DEFAULT_ASSEMBLER"; then
241 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
242 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
245 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
246 [Define to enable the use of a default assembler.])
249 AC_MSG_CHECKING([whether a default assembler was specified])
250 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
251 if test x"$gas_flag" = x"no"; then
252 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
254 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
264 # If a non-executable a.out is present (e.g. created by GNU as above even if
265 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
266 # file, even when creating an executable, so an execution test fails.
267 # Remove possible default executable files to avoid this.
269 # FIXME: This really belongs into AC_PROG_CC and can be removed once
270 # Autoconf includes it.
271 rm -f a.out a.exe b.out
273 # Find the native compiler
276 # autoconf is lame and doesn't give us any substitution variable for this.
277 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
278 NO_MINUS_C_MINUS_O=yes
280 OUTPUT_OPTION='-o $@'
282 AC_SUBST(NO_MINUS_C_MINUS_O)
283 AC_SUBST(OUTPUT_OPTION)
285 # Remove the -O2: for historical reasons, unless bootstrapping we prefer
286 # optimizations to be activated explicitly by the toplevel.
289 *) CFLAGS=`echo $CFLAGS | sed "s/-O[[s0-9]]* *//" ` ;;
293 # -------------------------
294 # Check C compiler features
295 # -------------------------
300 # sizeof(char) is 1 by definition.
301 AC_CHECK_SIZEOF(void *)
302 AC_CHECK_SIZEOF(short)
304 AC_CHECK_SIZEOF(long)
305 AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
306 AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)])
308 # ---------------------
309 # Warnings and checking
310 # ---------------------
312 # Check $CC warning features (if it's GCC).
313 # We want to use -pedantic, but we don't want warnings about
317 # So, we only use -pedantic if we can disable those warnings.
320 [whether ${CC} accepts -Wno-long-long],
321 [ac_cv_prog_cc_w_no_long_long],
322 [save_CFLAGS="$CFLAGS"
323 CFLAGS="-Wno-long-long"
324 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
325 [ac_cv_prog_cc_w_no_long_long=yes],
326 [ac_cv_prog_cc_w_no_long_long=no])
327 CFLAGS="$save_CFLAGS"
331 [whether ${CC} accepts -Wno-variadic-macros],
332 [ac_cv_prog_cc_w_no_variadic_macros],
333 [save_CFLAGS="$CFLAGS"
334 CFLAGS="-Wno-variadic-macros"
335 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
336 [ac_cv_prog_cc_w_no_variadic_macros=yes],
337 [ac_cv_prog_cc_w_no_variadic_macros=no])
338 CFLAGS="$save_CFLAGS"
342 [whether ${CC} accepts -Wno-overlength-strings],
343 [ac_cv_prog_cc_w_no_overlength_strings],
344 [save_CFLAGS="$CFLAGS"
345 CFLAGS="-Wno-overlength-strings"
346 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
347 [ac_cv_prog_cc_w_no_overlength_strings=yes],
348 [ac_cv_prog_cc_w_no_overlength_strings=no])
349 CFLAGS="$save_CFLAGS"
353 if test $ac_cv_prog_cc_w_no_long_long = yes \
354 && test $ac_cv_prog_cc_w_no_variadic_macros = yes \
355 && test $ac_cv_prog_cc_w_no_overlength_strings = yes ; then
356 strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings"
359 # Add -Wold-style-definition if it's accepted
361 [whether ${CC} accepts -Wold-style-definition],
362 [ac_cv_prog_cc_w_old_style_definition],
363 [save_CFLAGS="$CFLAGS"
364 CFLAGS="-Wold-style-definition"
365 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
366 [ac_cv_prog_cc_w_old_style_definition=yes],
367 [ac_cv_prog_cc_w_old_style_definition=no])
368 CFLAGS="$save_CFLAGS"
370 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
371 strict1_warn="${strict1_warn} -Wold-style-definition"
374 # Add -Wmissing-format-attribute if it's accepted
376 [whether ${CC} accepts -Wmissing-format-attribute],
377 [ac_cv_prog_cc_w_missing_format_attribute],
378 [save_CFLAGS="$CFLAGS"
379 CFLAGS="-Wmissing-format-attribute"
380 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
381 [ac_cv_prog_cc_w_missing_format_attribute=yes],
382 [ac_cv_prog_cc_w_missing_format_attribute=no])
383 CFLAGS="$save_CFLAGS"
385 if test $ac_cv_prog_cc_w_missing_format_attribute = yes ; then
386 strict1_warn="${strict1_warn} -Wmissing-format-attribute"
389 # Enable -Werror, period.
390 AC_ARG_ENABLE(werror_always,
391 [ --enable-werror-always enable -Werror always], [],
392 [enable_werror_always=no])
393 if test x${enable_werror_always} = xyes ; then
394 strict1_warn="${strict1_warn} -Werror"
398 AC_SUBST(strict1_warn)
400 # Get C++ compatibility warning flag, if supported.
402 [whether ${CC} accepts -Wc++-compat],
403 [ac_cv_prog_cc_w_cxx_compat],
404 [save_CFLAGS="$CFLAGS"
405 CFLAGS="-Wc++-compat"
406 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
407 [ac_cv_prog_cc_w_cxx_compat=yes],
408 [ac_cv_prog_cc_w_cxx_compat=no])
409 CFLAGS="$save_CFLAGS"
411 if test x${ac_cv_prog_cc_w_cxx_compat} = xyes; then
412 cxx_compat_warn="-Wc++-compat"
414 AC_SUBST(cxx_compat_warn)
417 # If the native compiler is GCC, we can enable warnings even in stage1.
418 # That's useful for people building cross-compilers, or just running a
421 if test "x$GCC" = "xyes"; then
422 warn_cflags='$(GCC_WARN_CFLAGS)'
424 AC_SUBST(warn_cflags)
426 # Enable -Werror in bootstrap stage2 and later.
428 if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
431 AC_ARG_ENABLE(werror,
432 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
433 [if test x$is_release = x ; then
434 # Default to "yes" on development branches.
437 # Default to "no" on release branches.
440 if test x$enable_werror = xyes ; then
445 # Enable expensive internal checks
446 AC_ARG_ENABLE(checking,
447 [ --enable-checking[=LIST]
448 enable expensive run-time checks. With LIST,
449 enable only specific categories of checks.
450 Categories are: yes,no,all,none,release.
451 Flags are: assert,fold,gc,gcac,misc,
452 rtlflag,rtl,runtime,tree,valgrind.],
453 [ac_checking_flags="${enableval}"],[
454 # Determine the default checks.
455 if test x$is_release = x ; then
456 ac_checking_flags=yes
458 ac_checking_flags=release
464 ac_gc_always_collect=
467 ac_runtime_checking=1
469 ac_valgrind_checking=
470 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
471 for check in $ac_checking_flags
474 # these set all the flags to specific states
475 yes) ac_assert_checking=1 ; ac_checking=1 ;
476 ac_fold_checking= ; ac_gc_checking=1 ;
477 ac_gc_always_collect= ; ac_rtl_checking= ;
478 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
479 ac_tree_checking=1 ; ac_valgrind_checking= ;;
480 no|none) ac_assert_checking= ; ac_checking= ;
481 ac_fold_checking= ; ac_gc_checking= ;
482 ac_gc_always_collect= ; ac_rtl_checking= ;
483 ac_rtlflag_checking= ; ac_runtime_checking= ;
484 ac_tree_checking= ; ac_valgrind_checking= ;;
485 all) ac_assert_checking=1 ; ac_checking=1 ;
486 ac_fold_checking=1 ; ac_gc_checking=1 ;
487 ac_gc_always_collect=1 ; ac_rtl_checking=1 ;
488 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
489 ac_tree_checking=1 ; ac_valgrind_checking= ;;
490 release) ac_assert_checking=1 ; ac_checking= ;
491 ac_fold_checking= ; ac_gc_checking= ;
492 ac_gc_always_collect= ; ac_rtl_checking= ;
493 ac_rtlflag_checking= ; ac_runtime_checking=1 ;
494 ac_tree_checking= ; ac_valgrind_checking= ;;
495 # these enable particular checks
496 assert) ac_assert_checking=1 ;;
497 fold) ac_fold_checking=1 ;;
498 gc) ac_gc_checking=1 ;;
499 gcac) ac_gc_always_collect=1 ;;
500 misc) ac_checking=1 ;;
501 rtl) ac_rtl_checking=1 ;;
502 rtlflag) ac_rtlflag_checking=1 ;;
503 runtime) ac_runtime_checking=1 ;;
504 tree) ac_tree_checking=1 ;;
505 valgrind) ac_valgrind_checking=1 ;;
506 *) AC_MSG_ERROR(unknown check category $check) ;;
512 if test x$ac_checking != x ; then
513 AC_DEFINE(ENABLE_CHECKING, 1,
514 [Define if you want more run-time sanity checks. This one gets a grab
515 bag of miscellaneous but relatively cheap checks.])
516 nocommon_flag=-fno-common
518 AC_SUBST(nocommon_flag)
519 if test x$ac_assert_checking != x ; then
520 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
521 [Define if you want assertions enabled. This is a cheap check.])
523 GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING)
524 if test x$ac_runtime_checking != x ; then
525 AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
526 [Define if you want runtime assertions enabled. This is a cheap check.])
528 if test x$ac_tree_checking != x ; then
529 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
530 [Define if you want all operations on trees (the basic data
531 structure of the front ends) to be checked for dynamic type safety
532 at runtime. This is moderately expensive. The tree browser debugging
533 routines will also be enabled by this option.
535 TREEBROWSER=tree-browser.o
537 AC_SUBST(TREEBROWSER)
538 if test x$ac_rtl_checking != x ; then
539 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
540 [Define if you want all operations on RTL (the basic data structure
541 of the optimizer and back end) to be checked for dynamic type safety
542 at runtime. This is quite expensive.])
544 if test x$ac_rtlflag_checking != x ; then
545 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
546 [Define if you want RTL flag accesses to be checked against the RTL
547 codes that are supported for each access macro. This is relatively
550 if test x$ac_gc_checking != x ; then
551 AC_DEFINE(ENABLE_GC_CHECKING, 1,
552 [Define if you want the garbage collector to do object poisoning and
553 other memory allocation checks. This is quite expensive.])
555 if test x$ac_gc_always_collect != x ; then
556 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
557 [Define if you want the garbage collector to operate in maximally
558 paranoid mode, validating the entire heap and collecting garbage at
559 every opportunity. This is extremely expensive.])
561 if test x$ac_fold_checking != x ; then
562 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
563 [Define if you want fold checked that it never destructs its argument.
564 This is quite expensive.])
566 valgrind_path_defines=
569 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
570 dnl # an if statement. This was the source of very frustrating bugs
571 dnl # in converting to autoconf 2.5x!
572 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
574 if test x$ac_valgrind_checking != x ; then
575 # It is certainly possible that there's valgrind but no valgrind.h.
576 # GCC relies on making annotations so we must have both.
577 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
578 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
579 [[#include <valgrind/memcheck.h>
580 #ifndef VALGRIND_DISCARD
581 #error VALGRIND_DISCARD not defined
583 [gcc_cv_header_valgrind_memcheck_h=yes],
584 [gcc_cv_header_valgrind_memcheck_h=no])
585 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
586 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
587 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
588 [[#include <memcheck.h>
589 #ifndef VALGRIND_DISCARD
590 #error VALGRIND_DISCARD not defined
592 [gcc_cv_header_memcheck_h=yes],
593 [gcc_cv_header_memcheck_h=no])
594 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
595 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
596 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
597 if test "x$valgrind_path" = "x" \
598 || (test $have_valgrind_h = no \
599 && test $gcc_cv_header_memcheck_h = no \
600 && test $gcc_cv_header_valgrind_memcheck_h = no); then
601 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
603 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
604 valgrind_command="$valgrind_path -q"
605 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
606 [Define if you want to run subprograms and generated programs
607 through valgrind (a memory checker). This is extremely expensive.])
608 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
609 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
610 [Define if valgrind's valgrind/memcheck.h header is installed.])
612 if test $gcc_cv_header_memcheck_h = yes; then
613 AC_DEFINE(HAVE_MEMCHECK_H, 1,
614 [Define if valgrind's memcheck.h header is installed.])
617 AC_SUBST(valgrind_path_defines)
618 AC_SUBST(valgrind_command)
620 AC_ARG_ENABLE(mapped-location,
621 [ --enable-mapped-location location_t is fileline integer cookie],,
622 enable_mapped_location=no)
624 if test "$enable_mapped_location" = yes ; then
625 AC_DEFINE(USE_MAPPED_LOCATION, 1,
626 [Define if location_t is fileline integer cookie.])
629 # Enable code coverage collection
630 AC_ARG_ENABLE(coverage,
631 [ --enable-coverage[=LEVEL]
632 enable compiler's code coverage collection.
633 Use to measure compiler performance and locate
634 unused parts of the compiler. With LEVEL, specify
635 optimization. Values are opt, noopt,
637 [case "${enableval}" in
639 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
642 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
645 # a.k.a. --disable-coverage
649 AC_MSG_ERROR(unknown coverage setting $enableval)
653 AC_SUBST(coverage_flags)
655 AC_ARG_ENABLE(gather-detailed-mem-stats,
656 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
657 [enable_gather_detailed_mem_stats=no])
658 if test x$enable_gather_detailed_mem_stats = xyes ; then
659 AC_DEFINE(GATHER_STATISTICS, 1,
660 [Define to enable detailed memory allocation stats gathering.])
663 # -------------------------------
664 # Miscenalleous configure options
665 # -------------------------------
669 [ --with-stabs arrange to use stabs instead of host debug format],
673 # Determine whether or not multilibs are enabled.
674 AC_ARG_ENABLE(multilib,
675 [ --enable-multilib enable library support for multiple ABIs],
676 [], [enable_multilib=yes])
677 AC_SUBST(enable_multilib)
679 # Enable __cxa_atexit for C++.
680 AC_ARG_ENABLE(__cxa_atexit,
681 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
684 # Enable C extension for decimal float if target supports it.
685 AC_ARG_ENABLE(decimal-float,
686 [ --enable-decimal-float enable decimal float extension to C],
688 if test x$enablevar = xyes ; then
690 powerpc*-*-linux* | i?86*-*-linux*)
691 enable_decimal_float=yes
694 AC_MSG_WARN(decimal float is not supported for this target, ignored)
695 enable_decimal_float=no
699 ], [enable_decimal_float=no])
701 AC_SUBST(enable_decimal_float)
703 dfp=`if test $enable_decimal_float = yes; then echo 1; else echo 0; fi`
704 AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp,
705 [Define to 1 to enable decimal float extension to C.])
708 # Pass with no value to take the default
709 # Pass with a value to specify a thread package
710 AC_ARG_ENABLE(threads,
711 [ --enable-threads enable thread usage for target GCC
712 --enable-threads=LIB use LIB thread package for target GCC],,
716 [ --enable-tls enable or disable generation of tls code
717 overriding the assembler check for tls support],
721 *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls.
722 Valid choices are 'yes' and 'no'.]) ;;
726 AC_ARG_ENABLE(objc-gc,
727 [ --enable-objc-gc enable the use of Boehm's garbage collector with
728 the GNU Objective-C runtime],
729 if test x$enable_objc_gc = xno; then
737 [ --with-dwarf2 force the default debug format to be DWARF 2],
738 dwarf2="$with_dwarf2",
741 AC_ARG_ENABLE(shared,
742 [ --disable-shared don't provide a shared libgcc],
744 case $enable_shared in
748 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
749 for pkg in $enableval; do
750 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
757 ], [enable_shared=yes])
758 AC_SUBST(enable_shared)
760 AC_ARG_WITH(build-sysroot,
761 [ --with-build-sysroot=sysroot
762 use sysroot as the system root during the build])
765 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
767 case ${with_sysroot} in
768 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
769 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
772 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
773 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
775 if test "x$exec_prefix" = xNONE; then
776 if test "x$prefix" = xNONE; then
777 test_prefix=/usr/local
782 test_prefix=$exec_prefix
784 case ${TARGET_SYSTEM_ROOT} in
785 "${test_prefix}"|"${test_prefix}/"*|\
786 '${exec_prefix}'|'${exec_prefix}/'*)
787 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
788 TARGET_SYSTEM_ROOT_DEFINE="$t"
793 TARGET_SYSTEM_ROOT_DEFINE=
794 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
796 AC_SUBST(TARGET_SYSTEM_ROOT)
797 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
798 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
800 # Build with intermodule optimisations
801 AC_ARG_ENABLE(intermodule,
802 [ --enable-intermodule build the compiler in one step],
803 [case ${enable_intermodule} in
804 yes) onestep="-onestep";;
810 # Sanity check enable_languages in case someone does not run the toplevel
811 # configure # script.
812 AC_ARG_ENABLE(languages,
813 [ --enable-languages=LIST specify which front-ends to build],
814 [case ,${enable_languages}, in
816 # go safe -- we cannot be much sure without the toplevel
818 # analysis of which target libs are present and usable
822 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
827 enable_languages=c,${enable_languages}
830 [enable_languages=c])
832 # Used by documentation targets
833 AC_SUBST(datarootdir)
837 # -------------------------
838 # Checks for other programs
839 # -------------------------
843 # Find some useful tools
845 # We need awk to create options.c and options.h.
846 # Bail out if it's missing.
848 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
856 # By default, the Darwin ranlib will not treat common symbols as
857 # definitions when building the archive table of contents. Other
858 # ranlibs do that; pass an option to the Darwin ranlib that makes
859 # it behave similarly.
865 AC_SUBST(ranlib_flags)
869 # See if cmp has --ignore-initial.
870 gcc_AC_PROG_CMP_IGNORE_INITIAL
872 # See if we have the mktemp command.
873 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
875 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
877 # See if makeinfo has been installed and is modern enough
878 # that we can use it.
879 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
880 [GNU texinfo.* \([0-9][0-9.]*\)],
882 if test $gcc_cv_prog_makeinfo_modern = no; then
883 MAKEINFO="$MISSING makeinfo"
885 *** Makeinfo is missing or too old.
886 *** Info documentation will not be built.])
893 # Is pod2man recent enough to regenerate manpages?
894 AC_MSG_CHECKING([for recent Pod::Man])
895 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
897 GENERATED_MANPAGES=generated-manpages
902 AC_SUBST(GENERATED_MANPAGES)
905 dnl Don't use AC_PROG_LEX; we insist on flex.
906 dnl LEXLIB is not useful in gcc.
907 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
910 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
912 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
913 # check for build == host before using them.
916 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
917 && test -d ../binutils ; then
918 NM='$(objdir)/../binutils/nm-new'
920 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
924 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
925 && test -d ../binutils ; then
926 AR='$(objdir)/../binutils/ar'
928 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
932 # --------------------
933 # Checks for C headers
934 # --------------------
936 AC_MSG_CHECKING(for GNU C library)
937 AC_CACHE_VAL(gcc_cv_glibc,
938 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
939 [[#include <features.h>]], [[
940 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
941 #error Not a GNU C library system
945 AC_MSG_RESULT($gcc_cv_glibc)
946 if test $gcc_cv_glibc = yes; then
947 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
950 # Need to reject headers which give warnings, so that the -Werror bootstrap
951 # works later. *sigh* This needs to come before all header checks.
958 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
959 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
960 sys/resource.h sys/param.h sys/times.h sys/stat.h \
961 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
963 # Check for thread headers.
964 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
965 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
967 # These tests can't be done till we know if we have limits.h.
975 # Stage specific cflags for build.
981 stage1_cflags="-Wa,-J"
987 AC_SUBST(stage1_cflags)
989 # These libraries may be used by collect2.
990 # We may need a special search path to get them linked.
991 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
993 for libs in '' -lld -lmld \
994 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
995 '-L/usr/lib/cmplrs/cc3.11 -lmld'
998 AC_TRY_LINK_FUNC(ldopen,
999 [gcc_cv_collect2_libs="$libs"; break])
1002 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
1003 case $gcc_cv_collect2_libs in
1005 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
1007 AC_SUBST(COLLECT2_LIBS)
1009 # When building Ada code on Alpha, we need exc_resume which is usually in
1010 # -lexc. So test for it.
1013 AC_SEARCH_LIBS(exc_resume, exc)
1016 AC_SUBST(GNAT_LIBEXC)
1018 # Some systems put ldexp and frexp in libm instead of libc; assume
1019 # they're both in the same place. jcf-dump needs them.
1022 AC_SEARCH_LIBS(ldexp, m)
1027 # Use <inttypes.h> only if it exists,
1028 # doesn't clash with <sys/types.h>, and declares intmax_t.
1029 AC_MSG_CHECKING(for inttypes.h)
1030 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
1031 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1032 [[#include <sys/types.h>
1033 #include <inttypes.h>]],
1034 [[intmax_t i = -1;]])],
1035 [gcc_cv_header_inttypes_h=yes],
1036 [gcc_cv_header_inttypes_h=no])])
1037 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
1038 if test $gcc_cv_header_inttypes_h = yes; then
1039 AC_DEFINE(HAVE_INTTYPES_H, 1,
1040 [Define if you have a working <inttypes.h> header file.])
1043 dnl Disabled until we have a complete test for buggy enum bitfields.
1044 dnl gcc_AC_C_ENUM_BF_UNSIGNED
1046 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
1047 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
1048 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
1049 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
1050 putchar_unlocked putc_unlocked)
1051 AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
1052 sysconf strsignal getrusage nl_langinfo scandir alphasort \
1053 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
1056 if test x$ac_cv_func_mbstowcs = xyes; then
1057 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
1058 [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
1064 [gcc_cv_func_mbstowcs_works=yes],
1065 [gcc_cv_func_mbstowcs_works=no],
1066 [gcc_cv_func_mbstowcs_works=yes])])
1067 if test x$gcc_cv_func_mbstowcs_works = xyes; then
1068 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1069 [Define this macro if mbstowcs does not crash when its
1070 first argument is NULL.])
1074 AC_CHECK_TYPE(ssize_t, int)
1076 # Try to determine the array type of the second argument of getgroups
1077 # for the target system (int or gid_t).
1079 if test "${target}" = "${build}"; then
1080 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
1083 # This condition may need some tweaking. It should include all
1084 # targets where the array type of the second argument of getgroups
1085 # is int and the type of gid_t is not equivalent to int.
1086 *-*-sunos* | *-*-ultrix*)
1087 TARGET_GETGROUPS_T=int
1090 TARGET_GETGROUPS_T=gid_t
1094 AC_SUBST(TARGET_GETGROUPS_T)
1096 gcc_AC_FUNC_MMAP_BLACKLIST
1100 # Under VMS, vfork works very differently than on Unix. The standard test
1101 # won't work, and it isn't easily adaptable. It makes more sense to
1103 ac_cv_func_vfork_works=yes
1109 # Until we have in-tree GNU iconv:
1111 AC_SUBST(LIBICONV_DEP)
1117 # We will need to find libiberty.h and ansidecl.h
1118 saved_CFLAGS="$CFLAGS"
1119 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1120 gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
1121 strsignal strstr strverscmp \
1122 errno snprintf vsnprintf vasprintf malloc realloc calloc \
1123 free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1124 #include "ansidecl.h"
1125 #include "system.h"])
1127 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1128 #include "ansidecl.h"
1130 #ifdef HAVE_SYS_RESOURCE_H
1131 #include <sys/resource.h>
1135 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1136 #include "ansidecl.h"
1138 #ifdef HAVE_SYS_RESOURCE_H
1139 #include <sys/resource.h>
1141 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
1142 [Define to \`long' if <sys/resource.h> doesn't define.])])
1144 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1145 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1146 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1147 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1148 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1149 #include "ansidecl.h"
1158 gcc_AC_CHECK_DECLS(times, , ,[
1159 #include "ansidecl.h"
1161 #ifdef HAVE_SYS_TIMES_H
1162 #include <sys/times.h>
1166 gcc_AC_CHECK_DECLS(sigaltstack, , ,[
1167 #include "ansidecl.h"
1172 # More time-related stuff.
1173 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1174 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1175 #include "ansidecl.h"
1177 #ifdef HAVE_SYS_TIMES_H
1178 #include <sys/times.h>
1180 ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
1181 if test $ac_cv_struct_tms = yes; then
1182 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1183 [Define if <sys/times.h> defines struct tms.])
1186 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1187 # revisit after autoconf 2.50.
1188 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1189 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1190 #include "ansidecl.h"
1192 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
1193 if test $gcc_cv_type_clock_t = yes; then
1194 AC_DEFINE(HAVE_CLOCK_T, 1,
1195 [Define if <time.h> defines clock_t.])
1198 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1199 CFLAGS="$saved_CFLAGS"
1201 gcc_AC_INITFINI_ARRAY
1203 # mkdir takes a single argument on some systems.
1204 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1212 # With Setjmp/Longjmp based exception handling.
1213 AC_ARG_ENABLE(sjlj-exceptions,
1214 [ --enable-sjlj-exceptions
1215 arrange to use setjmp/longjmp exception handling],
1216 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1217 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1218 [Define 0/1 to force the choice for exception handling model.])])
1220 # For platforms with the unwind ABI which includes an unwind library,
1221 # libunwind, we can choose to use the system libunwind.
1222 AC_ARG_WITH(system-libunwind,
1223 [ --with-system-libunwind use installed libunwind])
1225 # config.gcc also contains tests of with_system_libunwind.
1226 if test x$with_system_libunwind = xyes; then
1227 AC_DEFINE(HAVE_GETIPINFO, 1,
1228 [Define to 1 if system unwind library has _Unwind_GetIPInfo.])
1231 # --------------------------------------------------------
1232 # Build, host, and target specific configuration fragments
1233 # --------------------------------------------------------
1235 # Collect build-machine-specific information.
1236 . ${srcdir}/config.build
1238 # Collect host-machine-specific information.
1239 . ${srcdir}/config.host
1243 # Collect target-machine-specific information.
1244 . ${srcdir}/config.gcc
1246 extra_objs="${host_extra_objs} ${extra_objs}"
1247 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1249 # Default the target-machine variables that were not explicitly set.
1250 if test x"$tm_file" = x
1251 then tm_file=$cpu_type/$cpu_type.h; fi
1253 if test x"$extra_headers" = x
1254 then extra_headers=; fi
1256 if test x$md_file = x
1257 then md_file=$cpu_type/$cpu_type.md; fi
1259 if test x$out_file = x
1260 then out_file=$cpu_type/$cpu_type.c; fi
1262 if test x"$tmake_file" = x
1263 then tmake_file=$cpu_type/t-$cpu_type
1266 if test x"$dwarf2" = xyes
1267 then tm_file="$tm_file tm-dwarf2.h"
1270 # Say what files are being used for the output code and MD file.
1271 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1272 echo "Using \`$srcdir/config/$md_file' as machine description file."
1274 # If any of the xm_file variables contain nonexistent files, warn
1275 # about them and drop them.
1278 for x in $build_xm_file; do
1279 if test -f $srcdir/config/$x
1281 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1287 for x in $host_xm_file; do
1288 if test -f $srcdir/config/$x
1290 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1296 for x in $xm_file; do
1297 if test -f $srcdir/config/$x
1299 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1305 for f in $tm_file; do
1308 if test $count = ax; then
1309 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1311 echo "Using the following target machine macro files:"
1312 for f in $tm_file; do
1313 echo " $srcdir/config/$f"
1317 if test x$need_64bit_hwint = xyes; then
1318 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1319 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1322 if test x$use_long_long_for_widest_fast_int = xyes; then
1323 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1324 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1325 efficiently supported by the host hardware.])
1329 for f in $host_xm_file; do
1332 if test $count = a; then
1334 elif test $count = ax; then
1335 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1337 echo "Using the following host machine macro files:"
1338 for f in $host_xm_file; do
1339 echo " $srcdir/config/$f"
1342 echo "Using ${out_host_hook_obj} for host machine hooks."
1344 if test "$host_xm_file" != "$build_xm_file"; then
1346 for f in $build_xm_file; do
1349 if test $count = a; then
1351 elif test $count = ax; then
1352 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1354 echo "Using the following build machine macro files:"
1355 for f in $build_xm_file; do
1356 echo " $srcdir/config/$f"
1363 AC_CACHE_CHECK([whether mcontext_t fields have underscores],
1364 gcc_cv_mcontext_underscores,
1366 #include <sys/signal.h>
1367 #include <ucontext.h>
1368 int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; }
1370 gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes))
1371 if test $gcc_cv_mcontext_underscores = yes; then
1372 AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl
1373 [mcontext_t fields start with __])
1382 # Check if a valid thread package
1383 case ${enable_threads} in
1386 target_thread_file='single'
1390 target_thread_file='single'
1392 aix | dce | gnat | irix | posix | posix95 | rtems | \
1393 single | solaris | vxworks | win32 )
1394 target_thread_file=${enable_threads}
1397 echo "${enable_threads} is an unknown thread package" 1>&2
1402 if test x${thread_file} = x; then
1403 # No thread file set by target-specific clauses in config.gcc,
1404 # so use file chosen by default logic above
1405 thread_file=${target_thread_file}
1408 # Make gthr-default.h if we have a thread file.
1410 if test $thread_file != single; then
1411 rm -f gthr-default.h
1412 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1413 gthread_flags=-DHAVE_GTHR_DEFAULT
1415 AC_SUBST(gthread_flags)
1422 if test x$enable___cxa_atexit = xyes || \
1423 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1424 if test x$host = x$target; then
1425 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1426 [echo "__cxa_atexit can't be enabled on this target"])
1428 # We can't check for __cxa_atexit when building a cross, so assume
1432 if test x$use_cxa_atexit = xyes; then
1433 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2,
1434 [Define if you want to use __cxa_atexit, rather than atexit, to
1435 register C++ destructors for local statics and global objects.
1436 This is essential for fully standards-compliant handling of
1437 destructors, but requires __cxa_atexit in libc.])
1442 if test x$with_system_libunwind = xyes; then
1443 if test x$host = x$target; then
1444 AC_SEARCH_LIBS(_Unwind_GetIPInfo, unwind,, [use_getipinfo=no])
1447 GCC_TARGET_TEMPLATE(HAVE_GETIPINFO)
1448 if test x$use_getipinfo = xyes; then
1449 AC_DEFINE(HAVE_GETIPINFO, 1,
1450 [Define to 1 if system unwind library has _Unwind_GetIPInfo.])
1452 echo "The system unwind library does not support _Unwind_GetIPInfo."
1455 # Look for a file containing extra machine modes.
1456 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1457 extra_modes_file='$(srcdir)'/config/${extra_modes}
1458 AC_SUBST(extra_modes_file)
1459 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1460 [Define to the name of a file containing a list of extra machine modes
1461 for this architecture.])
1464 # Convert extra_options into a form suitable for Makefile use.
1466 for f in $extra_options; do
1467 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1469 AC_SUBST(extra_opt_files)
1471 # auto-host.h is the file containing items generated by autoconf and is
1472 # the first file included by config.h.
1473 # If host=build, it is correct to have bconfig include auto-host.h
1474 # as well. If host!=build, we are in error and need to do more
1475 # work to find out the build config parameters.
1476 if test x$host = x$build
1478 build_auto=auto-host.h
1480 # We create a subdir, then run autoconf in the subdir.
1481 # To prevent recursion we set host and build for the new
1482 # invocation of configure to the build for this invocation
1489 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1490 *) realsrcdir=../${srcdir};;
1492 saved_CFLAGS="${CFLAGS}"
1493 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1494 ${realsrcdir}/configure \
1495 --enable-languages=${enable_languages-all} \
1496 --target=$target_alias --host=$build_alias --build=$build_alias
1497 CFLAGS="${saved_CFLAGS}"
1499 # We just finished tests for the build machine, so rename
1500 # the file auto-build.h in the gcc directory.
1501 mv auto-host.h ../auto-build.h
1504 build_auto=auto-build.h
1506 AC_SUBST(build_subdir)
1508 tm_file="${tm_file} defaults.h"
1509 tm_p_file="${tm_p_file} tm-preds.h"
1510 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1511 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1512 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1513 # put this back in temporarily.
1514 xm_file="auto-host.h ansidecl.h ${xm_file}"
1521 # Compile in configure arguments.
1522 if test -f configargs.h ; then
1523 # Being re-configured.
1524 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1525 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1527 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1530 # Double all backslashes and backslash all quotes to turn
1531 # gcc_config_arguments into a C string.
1532 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1533 $gcc_config_arguments
1535 gcc_config_arguments_str=`cat conftest.out`
1538 cat > configargs.h <<EOF
1539 /* Generated automatically. */
1540 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1541 static const char thread_model[] = "$thread_file";
1543 static const struct {
1544 const char *name, *value;
1545 } configure_default_options[] = $configure_default_options;
1549 # Internationalization
1550 ZW_GNU_GETTEXT_SISTER_DIR
1552 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1553 # -liconv on the link line twice.
1554 case "$LIBINTL" in *$LIBICONV*)
1558 AC_ARG_ENABLE(secureplt,
1559 [ --enable-secureplt enable -msecure-plt by default for PowerPC],
1562 # Windows32 Registry support for specifying GCC installation paths.
1563 AC_ARG_ENABLE(win32-registry,
1564 [ --disable-win32-registry
1565 disable lookup of installation paths in the
1566 Registry on Windows hosts
1567 --enable-win32-registry enable registry lookup (default)
1568 --enable-win32-registry=KEY
1569 use KEY instead of GCC version as the last portion
1570 of the registry key],,)
1573 win32 | pe | cygwin* | mingw32* | uwin*)
1574 if test "x$enable_win32_registry" != xno; then
1575 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1578 if test "x$enable_win32_registry" != xno; then
1579 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1580 [Define to 1 if installation paths should be looked up in the Windows
1581 Registry. Ignored on non-Windows hosts.])
1583 if test "x$enable_win32_registry" != xyes \
1584 && test "x$enable_win32_registry" != x; then
1585 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1586 [Define to be the last component of the Windows registry key under which
1587 to look for installation paths. The full key used will be
1588 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1589 The default is the GCC version number.])
1595 # Get an absolute path to the GCC top-level source directory
1596 holddir=`${PWDCMD-pwd}`
1598 topdir=`${PWDCMD-pwd}`
1601 # Conditionalize the makefile for this host machine.
1603 for f in ${host_xmake_file}
1605 if test -f ${srcdir}/config/$f
1607 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1611 # Conditionalize the makefile for this target machine.
1613 for f in ${tmake_file}
1615 if test -f ${srcdir}/config/$f
1617 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1620 tmake_file="${tmake_file_}"
1622 # If the host doesn't support symlinks, modify CC in
1623 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1624 # Otherwise, we can use "CC=$(CC)".
1628 cc_set_by_configure="\$(CC)"
1629 quoted_cc_set_by_configure="\$(CC)"
1630 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1631 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1634 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1635 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1636 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1637 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1641 # This is a terrible hack which will go away some day.
1642 host_cc_for_libada=${CC}
1643 AC_SUBST(host_cc_for_libada)
1645 out_object_file=`basename $out_file .c`.o
1647 tm_file_list="options.h"
1648 tm_include_list="options.h"
1649 for f in $tm_file; do
1652 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1653 tm_include_list="${tm_include_list} $f"
1656 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1657 tm_include_list="${tm_include_list} config/$f"
1664 for f in $tm_p_file; do
1667 tm_p_file_list="${tm_p_file_list} $f"
1668 tm_p_include_list="${tm_p_include_list} $f"
1671 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1672 tm_p_include_list="${tm_p_include_list} config/$f"
1678 for f in $xm_file; do
1681 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1682 xm_include_list="${xm_include_list} $f"
1685 xm_file_list="${xm_file_list} $f"
1686 xm_include_list="${xm_include_list} $f"
1689 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1690 xm_include_list="${xm_include_list} config/$f"
1696 host_xm_include_list=
1697 for f in $host_xm_file; do
1700 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1701 host_xm_include_list="${host_xm_include_list} $f"
1704 host_xm_file_list="${host_xm_file_list} $f"
1705 host_xm_include_list="${host_xm_include_list} $f"
1708 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1709 host_xm_include_list="${host_xm_include_list} config/$f"
1715 for f in $build_xm_file; do
1718 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1719 build_xm_include_list="${build_xm_include_list} $f"
1721 auto-build.h | auto-host.h )
1722 build_xm_file_list="${build_xm_file_list} $f"
1723 build_xm_include_list="${build_xm_include_list} $f"
1726 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1727 build_xm_include_list="${build_xm_include_list} config/$f"
1732 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1733 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1734 CROSS= AC_SUBST(CROSS)
1735 ALL=all.internal AC_SUBST(ALL)
1736 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1738 if test "x$with_build_sysroot" != x; then
1739 build_system_header_dir=$with_build_sysroot'$(NATIVE_SYSTEM_HEADER_DIR)'
1741 # This value is used, even on a native system, because
1742 # CROSS_SYSTEM_HEADER_DIR is just
1743 # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
1744 build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
1747 if test x$host != x$target
1749 CROSS="-DCROSS_COMPILE"
1751 SYSTEM_HEADER_DIR=$build_system_header_dir
1752 case "$host","$target" in
1753 # Darwin crosses can use the host system's libraries and headers,
1754 # because of the fat library support. Of course, it must be the
1755 # same version of Darwin on both sides. Allow the user to
1756 # just say --target=foo-darwin without a version number to mean
1757 # "the version on this system".
1758 *-*-darwin*,*-*-darwin*)
1759 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1760 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1761 if test $hostos = $targetos -o $targetos = darwin ; then
1763 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1768 i?86-*-*,x86_64-*-* \
1769 | powerpc*-*-*,powerpc64*-*-*)
1770 CROSS="$CROSS -DNATIVE_CROSS" ;;
1772 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1773 SYSTEM_HEADER_DIR=$build_system_header_dir
1776 # If this is a cross-compiler that does not
1777 # have its own set of headers then define
1780 # If this is using newlib, without having the headers available now,
1781 # then define inhibit_libc in LIBGCC2_CFLAGS.
1782 # This prevents libgcc2 from containing any code which requires libc
1785 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1786 test x$with_newlib = xyes ; } &&
1787 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1790 AC_SUBST(inhibit_libc)
1792 # When building gcc with a cross-compiler, we need to adjust things so
1793 # that the generator programs are still built with the native compiler.
1794 # Also, we cannot run fixincludes or fix-header.
1796 # These are the normal (build=host) settings:
1797 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1798 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1799 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1801 # Possibly disable fixproto, on a per-target basis.
1802 case ${use_fixproto} in
1807 STMP_FIXPROTO=stmp-fixproto
1810 AC_SUBST(STMP_FIXPROTO)
1812 # And these apply if build != host, or we are generating coverage data
1813 if test x$build != x$host || test "x$coverage_flags" != x
1815 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1817 if test "x$TARGET_SYSTEM_ROOT" = x; then
1818 if test "x$STMP_FIXPROTO" != x; then
1819 STMP_FIXPROTO=stmp-install-fixproto
1824 # Expand extra_headers to include complete path.
1825 # This substitutes for lots of t-* files.
1827 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1828 for file in ${extra_headers} ; do
1829 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1832 # Define collect2 in Makefile.
1833 case $host_can_use_collect2 in
1835 *) collect2='collect2$(exeext)' ;;
1837 AC_SUBST([collect2])
1839 # Add a definition of USE_COLLECT2 if system wants one.
1840 case $use_collect2 in
1841 no) use_collect2= ;;
1844 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1845 xm_defines="${xm_defines} USE_COLLECT2"
1846 case $host_can_use_collect2 in
1848 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1854 # ---------------------------
1855 # Assembler & linker features
1856 # ---------------------------
1858 # Identify the assembler which will work hand-in-glove with the newly
1859 # built GCC, so that we can examine its features. This is the assembler
1860 # which will be driven by the driver program.
1862 # If build != host, and we aren't building gas in-tree, we identify a
1863 # build->target assembler and hope that it will have the same features
1864 # as the host->target assembler we'll be using.
1865 gcc_cv_gas_major_version=
1866 gcc_cv_gas_minor_version=
1867 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1869 m4_pattern_allow([AS_FOR_TARGET])dnl
1870 AS_VAR_SET_IF(gcc_cv_as,, [
1871 if test -x "$DEFAULT_ASSEMBLER"; then
1872 gcc_cv_as="$DEFAULT_ASSEMBLER"
1873 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1874 && test -f ../gas/Makefile \
1875 && test x$build = x$host; then
1876 gcc_cv_as=../gas/as-new$build_exeext
1877 elif test -x as$build_exeext; then
1878 # Build using assembler in the current directory.
1879 gcc_cv_as=./as$build_exeext
1880 elif test -x $AS_FOR_TARGET; then
1881 gcc_cv_as="$AS_FOR_TARGET"
1883 AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET)
1886 ORIGINAL_AS_FOR_TARGET=$gcc_cv_as
1887 AC_SUBST(ORIGINAL_AS_FOR_TARGET)
1889 AC_MSG_CHECKING(what assembler to use)
1890 if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then
1891 # Single tree build which includes gas. We want to prefer it
1892 # over whatever linker top-level may have detected, since
1893 # we'll use what we're building after installation anyway.
1894 AC_MSG_RESULT(newly built gas)
1896 _gcc_COMPUTE_GAS_VERSION
1897 in_tree_gas_is_elf=no
1898 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1899 || (grep 'obj_format = multi' ../gas/Makefile \
1900 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1902 in_tree_gas_is_elf=yes
1905 AC_MSG_RESULT($gcc_cv_as)
1909 # Identify the linker which will work hand-in-glove with the newly
1910 # built GCC, so that we can examine its features. This is the linker
1911 # which will be driven by the driver program.
1913 # If build != host, and we aren't building gas in-tree, we identify a
1914 # build->target linker and hope that it will have the same features
1915 # as the host->target linker we'll be using.
1916 gcc_cv_gld_major_version=
1917 gcc_cv_gld_minor_version=
1918 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1919 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1921 AS_VAR_SET_IF(gcc_cv_ld,, [
1922 if test -x "$DEFAULT_LINKER"; then
1923 gcc_cv_ld="$DEFAULT_LINKER"
1924 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1925 && test -f ../ld/Makefile \
1926 && test x$build = x$host; then
1927 gcc_cv_ld=../ld/ld-new$build_exeext
1928 elif test -x collect-ld$build_exeext; then
1929 # Build using linker in the current directory.
1930 gcc_cv_ld=./collect-ld$build_exeext
1931 elif test -x $LD_FOR_TARGET; then
1932 gcc_cv_ld="$LD_FOR_TARGET"
1934 AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
1937 ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
1938 AC_SUBST(ORIGINAL_LD_FOR_TARGET)
1940 AC_MSG_CHECKING(what linker to use)
1941 if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then
1942 # Single tree build which includes ld. We want to prefer it
1943 # over whatever linker top-level may have detected, since
1944 # we'll use what we're building after installation anyway.
1945 AC_MSG_RESULT(newly built ld)
1947 in_tree_ld_is_elf=no
1948 if (grep 'EMUL = .*elf' ../ld/Makefile \
1949 || grep 'EMUL = .*linux' ../ld/Makefile \
1950 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1951 in_tree_ld_is_elf=yes
1953 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
1956 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1957 if test x$gcc_cv_gld_version != x; then
1961 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1962 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1965 AC_MSG_RESULT($gcc_cv_ld)
1969 # Figure out what nm we will be using.
1970 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1971 AS_VAR_SET_IF(gcc_cv_nm,, [
1972 if test -f $gcc_cv_binutils_srcdir/configure.in \
1973 && test -f ../binutils/Makefile \
1974 && test x$build = x$host; then
1975 gcc_cv_nm=../binutils/nm-new$build_exeext
1976 elif test -x nm$build_exeext; then
1977 gcc_cv_nm=./nm$build_exeext
1978 elif test -x $NM_FOR_TARGET; then
1979 gcc_cv_nm="$NM_FOR_TARGET"
1981 AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET)
1984 AC_MSG_CHECKING(what nm to use)
1985 if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then
1986 # Single tree build which includes binutils.
1987 AC_MSG_RESULT(newly built nm)
1990 AC_MSG_RESULT($gcc_cv_nm)
1994 ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm
1995 AC_SUBST(ORIGINAL_NM_FOR_TARGET)
1997 # Figure out what objdump we will be using.
1998 AS_VAR_SET_IF(gcc_cv_objdump,, [
1999 if test -f $gcc_cv_binutils_srcdir/configure.in \
2000 && test -f ../binutils/Makefile \
2001 && test x$build = x$host; then
2002 # Single tree build which includes binutils.
2003 gcc_cv_objdump=../binutils/objdump$build_exeext
2004 elif test -x objdump$build_exeext; then
2005 gcc_cv_objdump=./objdump$build_exeext
2006 elif test -x $OBJDUMP_FOR_TARGET; then
2007 gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
2009 AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
2012 AC_MSG_CHECKING(what objdump to use)
2013 if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then
2014 # Single tree build which includes binutils.
2015 AC_MSG_RESULT(newly built objdump)
2016 elif test x$gcc_cv_objdump = x; then
2017 AC_MSG_RESULT(not found)
2019 AC_MSG_RESULT($gcc_cv_objdump)
2022 # Figure out what assembler alignment features are present.
2023 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
2027 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
2028 [Define if your assembler supports .balign and .p2align.])])
2030 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2033 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2034 [Define if your assembler supports specifying the maximum number
2035 of bytes to skip when using the GAS .p2align command.])])
2037 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2039 [conftest_label1: .word 0
2041 conftest_label2: .word 0
2043 [if test x$gcc_cv_nm != x; then
2044 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2045 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2046 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2048 else gcc_cv_as_subsection_m1=yes
2050 rm -f conftest.nm1 conftest.nm2
2052 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2053 [Define if your assembler supports .subsection and .subsection -1 starts
2054 emitting at the beginning of your section.])])
2056 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2059 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2061 gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,
2063 [ .weakref foobar, barfnot],,
2064 [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])])
2066 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2069 .NSUBSPA $CODE$,COMDAT],,
2070 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2072 # .hidden needs to be supported in both the assembler and the linker,
2073 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2074 # This is irritatingly difficult to feature test for; we have to check the
2075 # date string after the version number. If we've got an in-tree
2076 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2078 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2079 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2084 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2085 [if test $in_tree_ld = yes ; then
2087 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2088 && test $in_tree_ld_is_elf = yes; then
2089 gcc_cv_ld_hidden=yes
2092 gcc_cv_ld_hidden=yes
2093 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2094 if echo "$ld_ver" | grep GNU > /dev/null; then
2096 ld_vers=`echo $ld_ver | sed -n \
2097 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2098 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2099 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2100 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2101 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2102 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2103 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ -].*$,\1,p'`
2104 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2105 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2106 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2107 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2108 if test 0"$ld_date" -lt 20020404; then
2109 if test -n "$ld_date"; then
2110 # If there was date string, but was earlier than 2002-04-04, fail
2112 elif test -z "$ld_vers"; then
2113 # If there was no date string nor ld version number, something is wrong
2116 test -z "$ld_vers_patch" && ld_vers_patch=0
2117 if test "$ld_vers_major" -lt 2; then
2119 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2120 gcc_cv_ld_hidden="no"
2121 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2129 hppa64*-*-hpux* | ia64*-*-hpux*)
2130 gcc_cv_ld_hidden=yes
2138 libgcc_visibility=no
2139 AC_SUBST(libgcc_visibility)
2140 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2141 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2142 libgcc_visibility=yes
2143 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2144 [Define if your assembler and linker support .hidden.])
2147 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2148 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2156 [# GAS versions before 2.11 do not support uleb128,
2157 # despite appearing to.
2158 # ??? There exists an elf-specific test that will crash
2159 # the assembler. Perhaps it's better to figure out whether
2160 # arbitrary sections are supported and try the test.
2161 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2162 if echo "$as_ver" | grep GNU > /dev/null; then
2164 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2165 as_major=`echo $as_ver | sed 's/\..*//'`
2166 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2168 if test $as_major -eq 2 && test $as_minor -lt 11
2170 else gcc_cv_as_leb128=yes
2173 [AC_DEFINE(HAVE_AS_LEB128, 1,
2174 [Define if your assembler supports .sleb128 and .uleb128.])])
2176 # GAS versions up to and including 2.11.0 may mis-optimize
2178 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2186 .section .eh_frame,"aw",@progbits
2188 .4byte .LECIE1-.LSCIE1
2202 .4byte .LEFDE1-.LASFDE1
2204 .4byte .LASFDE1-__FRAME_BEGIN__
2212 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2213 cat > conftest.lit <<EOF
2214 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2215 0010 01000000 12000000 18000000 00000000 ................
2216 0020 08000000 04080000 0044 .........D @&t@
2218 cat > conftest.big <<EOF
2219 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2220 0010 00000001 00000012 00000018 00000000 ................
2221 0020 00000008 04000000 0844 .........D @&t@
2223 # If the assembler didn't choke, and we can objdump,
2224 # and we got the correct data, then succeed.
2225 # The text in the here-document typically retains its unix-style line
2226 # endings, while the output of objdump will use host line endings.
2227 # Therefore, use diff -b for the comparisons.
2228 if test x$gcc_cv_objdump != x \
2229 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2230 | tail -3 > conftest.got \
2231 && { diff -b conftest.lit conftest.got > /dev/null 2>&1 \
2232 || diff -b conftest.big conftest.got > /dev/null 2>&1; }
2234 gcc_cv_as_eh_frame=yes
2235 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2236 gcc_cv_as_eh_frame=buggy
2238 # Uh oh, what do we do now?
2239 gcc_cv_as_eh_frame=no
2242 if test $gcc_cv_as_eh_frame = buggy; then
2243 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2244 [Define if your assembler mis-optimizes .eh_frame data.])
2247 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2248 [elf,2,12,0], [--fatal-warnings],
2249 [.section .rodata.str, "aMS", @progbits, 1])
2250 if test $gcc_cv_as_shf_merge = no; then
2251 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2252 [elf,2,12,0], [--fatal-warnings],
2253 [.section .rodata.str, "aMS", %progbits, 1])
2255 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2256 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2257 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2259 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2260 [elf,2,16,0], [--fatal-warnings],
2261 [.section .text,"axG",@progbits,.foo,comdat])
2262 if test $gcc_cv_as_comdat_group = yes; then
2263 gcc_cv_as_comdat_group_percent=no
2265 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2266 [elf,2,16,0], [--fatal-warnings],
2267 [.section .text,"axG",%progbits,.foo,comdat])
2269 if test $in_tree_ld != yes && test x"$ld_vers" != x; then
2271 if test 0"$ld_date" -lt 20050308; then
2272 if test -n "$ld_date"; then
2273 # If there was date string, but was earlier than 2005-03-08, fail
2275 elif test "$ld_vers_major" -lt 2; then
2277 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2282 # assume linkers other than GNU ld don't support COMDAT group
2285 if test $comdat_group = no; then
2286 gcc_cv_as_comdat_group=no
2287 gcc_cv_as_comdat_group_percent=no
2289 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
2290 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2291 [Define 0/1 if your assembler and linker support COMDAT groups.])
2293 # Thread-local storage - the check is heavily parametrized.
2302 .section ".tdata","awT",@progbits
2305 ldq $27,__tls_get_addr($29) !literal!1
2306 lda $16,foo($29) !tlsgd!1
2307 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2308 ldq $27,__tls_get_addr($29) !literal!2
2309 lda $16,foo($29) !tlsldm!2
2310 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2311 ldq $1,foo($29) !gotdtprel
2312 ldah $2,foo($29) !dtprelhi
2313 lda $3,foo($2) !dtprello
2314 lda $4,foo($29) !dtprel
2315 ldq $1,foo($29) !gottprel
2316 ldah $2,foo($29) !tprelhi
2317 lda $3,foo($2) !tprello
2318 lda $4,foo($29) !tprel'
2321 tls_as_opt=--fatal-warnings
2325 .section ".tdata","awT",@progbits
2337 .section ".tdata","awT",@progbits
2341 addil LT%foo-$tls_gdidx$,gp
2342 ldo RT%foo-$tls_gdidx$(%r1),%arg0
2345 addil LT%foo-$tls_ldidx$,gp
2347 ldo RT%foo-$tls_ldidx$(%r1),%arg0
2348 addil LR%foo-$tls_dtpoff$,%ret0
2349 ldo RR%foo-$tls_dtpoff$(%r1),%t1
2351 addil LT%foo-$tls_ieoff$,gp
2352 ldw RT%foo-$tls_ieoff$(%r1),%t2
2355 addil LR%foo-$tls_leoff$,%t1
2356 ldo RR%foo-$tls_leoff$(%r1),%t2'
2359 tls_as_opt=--fatal-warnings
2363 .section ".tdata","awT",%progbits
2376 .section ".tdata","awT",@progbits
2380 leal foo@TLSGD(,%ebx,1), %eax
2381 leal foo@TLSLDM(%ebx), %eax
2382 leal foo@DTPOFF(%eax), %edx
2383 movl foo@GOTTPOFF(%ebx), %eax
2384 subl foo@GOTTPOFF(%ebx), %eax
2385 addl foo@GOTNTPOFF(%ebx), %eax
2386 movl foo@INDNTPOFF, %eax
2387 movl $foo@TPOFF, %eax
2388 subl $foo@TPOFF, %eax
2389 leal foo@NTPOFF(%ecx), %eax'
2392 tls_as_opt=--fatal-warnings
2396 .section ".tdata","awT",@progbits
2400 leaq foo@TLSGD(%rip), %rdi
2401 leaq foo@TLSLD(%rip), %rdi
2402 leaq foo@DTPOFF(%rax), %rdx
2403 movq foo@GOTTPOFF(%rip), %rax
2404 movq $foo@TPOFF, %rax'
2407 tls_as_opt=--fatal-warnings
2411 .section ".tdata","awT",@progbits
2414 addl r16 = @ltoff(@dtpmod(foo#)), gp
2415 addl r17 = @ltoff(@dtprel(foo#)), gp
2416 addl r18 = @ltoff(@tprel(foo#)), gp
2417 addl r19 = @dtprel(foo#), gp
2418 adds r21 = @dtprel(foo#), r13
2419 movl r23 = @dtprel(foo#)
2420 addl r20 = @tprel(foo#), gp
2421 adds r22 = @tprel(foo#), r13
2422 movl r24 = @tprel(foo#)'
2425 tls_as_opt=--fatal-warnings
2429 .section .tdata,"awT",@progbits
2433 addiu $4, $28, %tlsgd(x)
2434 addiu $4, $28, %tlsldm(x)
2435 lui $4, %dtprel_hi(x)
2436 addiu $4, $4, %dtprel_lo(x)
2437 lw $4, %gottprel(x)($28)
2438 lui $4, %tprel_hi(x)
2439 addiu $4, $4, %tprel_lo(x)'
2442 tls_as_opt='-32 --fatal-warnings'
2446 .section ".tdata","awT",@progbits
2454 addi 3,31,ld0@got@tlsgd
2456 addi 3,31,x1@got@tlsld
2459 addis 9,3,x2@dtprel@ha
2460 addi 9,9,x2@dtprel@l
2461 lwz 9,x3@got@tprel(31)
2464 addis 9,2,x2@tprel@ha
2465 addi 9,9,x2@tprel@l'
2468 tls_as_opt="-a32 --fatal-warnings"
2472 .section ".tdata","awT",@progbits
2480 addi 3,2,ld0@got@tlsgd
2486 addi 3,2,x1@got@tlsld
2492 addis 9,3,x2@dtprel@ha
2493 addi 9,9,x2@dtprel@l
2496 ld 9,x3@got@dtprel(2)
2502 tls_as_opt="-a64 --fatal-warnings"
2506 .section ".tdata","awT",@progbits
2515 l %r1,foo@GOTNTPOFF(%r12)
2516 l %r1,0(%r1):tls_load:foo
2517 bas %r14,0(%r1,%r13):tls_gdcall:foo
2518 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2521 tls_as_opt="-m31 --fatal-warnings"
2525 .section ".tdata","awT",@progbits
2533 lg %r1,foo@GOTNTPOFF(%r12)
2534 larl %r1,foo@INDNTPOFF
2535 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2536 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2539 tls_as_opt="-m64 -Aesame --fatal-warnings"
2541 sh-*-* | sh[34]-*-*)
2543 .section ".tdata","awT",@progbits
2553 tls_as_opt=--fatal-warnings
2557 sparc*-sun-solaris2.[56789]*)
2558 # TLS was introduced in the Solaris 9 4/04 release but
2559 # we do not enable it by default on Solaris 9 either.
2560 if test "x$enable_tls" = xyes ; then
2566 sparc*-sun-solaris2.*)
2573 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2575 .section ".tdata",#alloc,#write,#tls
2578 sethi %tgd_hi22(foo), %o0
2579 add %o0, %tgd_lo10(foo), %o1
2580 add %l7, %o1, %o0, %tgd_add(foo)
2581 call __tls_get_addr, %tgd_call(foo)
2582 sethi %tldm_hi22(foo), %l1
2583 add %l1, %tldm_lo10(foo), %l2
2584 add %l7, %l2, %o0, %tldm_add(foo)
2585 call __tls_get_addr, %tldm_call(foo)
2586 sethi %tldo_hix22(foo), %l3
2587 xor %l3, %tldo_lox10(foo), %l4
2588 add %o0, %l4, %l5, %tldo_add(foo)
2589 sethi %tie_hi22(foo), %o3
2590 add %o3, %tie_lo10(foo), %o3
2591 ld [%l7 + %o3], %o2, %tie_ld(foo)
2592 add %g7, %o2, %o4, %tie_add(foo)
2593 sethi %tle_hix22(foo), %l1
2594 xor %l1, %tle_lox10(foo), %o5
2595 ld [%g7 + %o5], %o1'
2600 .section ".tdata","awT",@progbits
2603 sethi %tgd_hi22(foo), %o0
2604 add %o0, %tgd_lo10(foo), %o1
2605 add %l7, %o1, %o0, %tgd_add(foo)
2606 call __tls_get_addr, %tgd_call(foo)
2607 sethi %tldm_hi22(foo), %l1
2608 add %l1, %tldm_lo10(foo), %l2
2609 add %l7, %l2, %o0, %tldm_add(foo)
2610 call __tls_get_addr, %tldm_call(foo)
2611 sethi %tldo_hix22(foo), %l3
2612 xor %l3, %tldo_lox10(foo), %l4
2613 add %o0, %l4, %l5, %tldo_add(foo)
2614 sethi %tie_hi22(foo), %o3
2615 add %o3, %tie_lo10(foo), %o3
2616 ld [%l7 + %o3], %o2, %tie_ld(foo)
2617 add %g7, %o2, %o4, %tie_add(foo)
2618 sethi %tle_hix22(foo), %l1
2619 xor %l1, %tle_lox10(foo), %o5
2620 ld [%g7 + %o5], %o1'
2623 tls_as_opt="-32 --fatal-warnings"
2629 if test "x$enable_tls" = xno ; then
2630 : # TLS explicitly disabled.
2631 elif test "x$enable_tls" = xyes ; then
2632 set_have_as_tls=yes # TLS explicitly enabled.
2633 elif test -z "$tls_first_major"; then
2634 : # If we don't have a check, assume no support.
2636 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2637 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2638 [set_have_as_tls=yes])
2640 if test $set_have_as_tls = yes ; then
2641 AC_DEFINE(HAVE_AS_TLS, 1,
2642 [Define if your assembler supports thread-local storage.])
2645 # Target-specific assembler checks.
2647 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2648 gcc_cv_ld_static_dynamic=no
2649 if test $in_tree_ld = yes ; then
2650 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2651 gcc_cv_ld_static_dynamic=yes
2653 elif test x$gcc_cv_ld != x; then
2654 # Check if linker supports -Bstatic/-Bdynamic option
2655 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2656 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2657 gcc_cv_ld_static_dynamic=yes
2660 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2661 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2662 [Define if your linker supports -Bstatic/-Bdynamic option.])
2664 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2666 if test x"$demangler_in_ld" = xyes; then
2667 AC_MSG_CHECKING(linker --demangle support)
2668 gcc_cv_ld_demangle=no
2669 if test $in_tree_ld = yes; then
2670 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2671 gcc_cv_ld_demangle=yes
2673 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2674 # Check if the GNU linker supports --demangle option
2675 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2676 gcc_cv_ld_demangle=yes
2679 if test x"$gcc_cv_ld_demangle" = xyes; then
2680 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2681 [Define if your linker supports --demangle option.])
2683 AC_MSG_RESULT($gcc_cv_ld_demangle)
2687 # All TARGET_ABI_OSF targets.
2688 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2689 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2690 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2693 extbl $3, $2, $3 !lituse_bytoff!1
2694 ldq $2, a($29) !literal!1
2695 ldq $4, b($29) !literal!2
2696 ldq_u $3, 0($2) !lituse_base!1
2697 ldq $27, f($29) !literal!5
2698 jsr $26, ($27), f !lituse_jsr!5
2699 ldah $29, 0($26) !gpdisp!3
2700 lda $0, c($29) !gprel
2701 ldah $1, d($29) !gprelhigh
2702 lda $1, d($1) !gprellow
2703 lda $29, 0($29) !gpdisp!3],,
2704 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2705 [Define if your assembler supports explicit relocations.])])
2706 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2707 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2710 ldq $27, a($29) !literal!1
2711 jsr $26, ($27), a !lituse_jsrdirect!1],,
2712 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2713 [Define if your assembler supports the lituse_jsrdirect relocation.])])
2717 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2718 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2719 [-no-mul-bug-abort], [.text],,
2720 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2721 [Define if your assembler supports the -no-mul-bug-abort option.])])
2725 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2726 [.register %g2, #scratch],,
2727 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2728 [Define if your assembler supports .register.])])
2730 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2732 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2733 [Define if your assembler supports -relax option.])])
2735 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2736 gcc_cv_as_sparc_ua_pcrel,,
2744 .uaword %r_disp32(foo)],
2745 [if test x$gcc_cv_ld != x \
2746 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2747 gcc_cv_as_sparc_ua_pcrel=yes
2750 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2751 [Define if your assembler and linker support unaligned PC relative relocs.])
2753 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2754 gcc_cv_as_sparc_ua_pcrel_hidden,,
2759 .uaword %r_disp32(foo)
2760 .byte 0x32, 0x33, 0x34
2765 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2766 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2767 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2768 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2769 if $gcc_cv_objdump -R conftest 2> /dev/null \
2770 | grep 'DISP32' > /dev/null 2>&1; then
2773 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2777 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2778 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2779 ]) # unaligned pcrel relocs
2781 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2782 gcc_cv_as_sparc_offsetable_lo10,,
2785 or %g1, %lo(ab) + 12, %g1
2786 or %g1, %lo(ab + 12), %g1],
2787 [if test x$gcc_cv_objdump != x \
2788 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2789 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2790 gcc_cv_as_sparc_offsetable_lo10=yes
2792 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2793 [Define if your assembler supports offsetable %lo().])])
2797 i[34567]86-*-* | x86_64-*-*)
2800 cygwin* | pe | mingw32*)
2801 # Used for DWARF 2 in PE
2802 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2803 gcc_cv_as_ix86_pe_secrel32,
2809 [if test x$gcc_cv_ld != x \
2810 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2811 gcc_cv_as_ix86_pe_secrel32=yes
2814 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2815 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2819 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2820 gcc_cv_as_ix86_filds_fists,
2821 [2,9,0],, [filds mem; fists mem],,
2822 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2823 [Define if your assembler uses the new HImode fild and fist notation.])])
2825 gcc_GAS_CHECK_FEATURE([cmov syntax],
2826 gcc_cv_as_ix86_cmov_sun_syntax,,,
2827 [cmovl.l %edx, %eax],,
2828 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2829 [Define if your assembler supports the Sun syntax for cmov.])])
2831 gcc_GAS_CHECK_FEATURE([ffreep mnemonic],
2832 gcc_cv_as_ix86_ffreep,,,
2834 [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1,
2835 [Define if your assembler supports the ffreep mnemonic.])])
2837 # This one is used unconditionally by i386.[ch]; it is to be defined
2838 # to 1 if the feature is present, 0 otherwise.
2839 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2840 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2846 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2847 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2848 [Define true if the assembler supports '.long foo@GOTOFF'.])
2852 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2853 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2855 addl r15 = @ltoffx(x#), gp
2857 ld8.mov r16 = [[r15]], x#],,
2858 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2859 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2865 *-*-aix*) conftest_s=' .machine "pwr5"
2869 gcc_GAS_CHECK_FEATURE([.machine directive support],
2870 gcc_cv_as_machine_directive,,,
2871 [ .machine ppc7400])
2872 if test x$gcc_cv_as_machine_directive != xyes; then
2873 echo "*** This target requires an assembler supporting \".machine\"" >&2
2874 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2875 test x$build = x$target && exit 1
2879 *) conftest_s=' .machine power4
2884 gcc_GAS_CHECK_FEATURE([mfcr field support],
2885 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2887 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2888 [Define if your assembler supports mfcr field.])])
2891 *-*-aix*) conftest_s=' .machine "pwr5"
2894 *) conftest_s=' .machine power5
2899 gcc_GAS_CHECK_FEATURE([popcntb support],
2900 gcc_cv_as_powerpc_popcntb, [2,17,0],,
2902 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
2903 [Define if your assembler supports popcntb field.])])
2906 *-*-aix*) conftest_s=' .machine "pwr5x"
2909 *) conftest_s=' .machine power5
2914 gcc_GAS_CHECK_FEATURE([fp round support],
2915 gcc_cv_as_powerpc_fprnd, [2,17,0],,
2917 [AC_DEFINE(HAVE_AS_FPRND, 1,
2918 [Define if your assembler supports fprnd.])])
2921 *-*-aix*) conftest_s=' .csect .text[[PR]]
2923 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
2927 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
2928 *) conftest_s=' .text
2930 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
2933 gcc_GAS_CHECK_FEATURE([rel16 relocs],
2934 gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
2936 [AC_DEFINE(HAVE_AS_REL16, 1,
2937 [Define if your assembler supports R_PPC_REL16 relocs.])])
2941 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2942 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2943 [ lw $4,%gp_rel(foo)($4)],,
2944 [if test x$target_cpu_default = x
2945 then target_cpu_default=MASK_EXPLICIT_RELOCS
2946 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2951 # Mips and HP-UX need the GNU assembler.
2952 # Linux on IA64 might be able to use the Intel assembler.
2955 mips*-*-* | *-*-hpux* )
2956 if test x$gas_flag = xyes \
2957 || test x"$host" != x"$build" \
2958 || test ! -x "$gcc_cv_as" \
2959 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2962 echo "*** This configuration requires the GNU assembler" >&2
2968 # ??? Not all targets support dwarf2 debug_line, even within a version
2969 # of gas. Moreover, we need to emit a valid instruction to trigger any
2970 # info to the output file. So, as supported targets are added to gas 2.11,
2971 # add some instruction here to (also) show we expect this might work.
2972 # ??? Once 2.11 is released, probably need to add first known working
2973 # version to the per-target configury.
2975 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2976 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2977 | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-* | score*-*-*)
2980 ia64*-*-* | s390*-*-*)
2987 if test x"$insn" != x; then
2989 .file 1 \"conftest.s\"
2992 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2993 gcc_cv_as_dwarf2_debug_line,
2994 [elf,2,11,0],, [$conftest_s],
2995 [if test x$gcc_cv_objdump != x \
2996 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2997 | grep debug_line > /dev/null 2>&1; then
2998 gcc_cv_as_dwarf2_debug_line=yes
3001 # The .debug_line file table must be in the exact order that
3002 # we specified the files, since these indices are also used
3003 # by DW_AT_decl_file. Approximate this test by testing if
3004 # the assembler bitches if the same index is assigned twice.
3005 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
3006 gcc_cv_as_dwarf2_file_buggy,,,
3010 if test $gcc_cv_as_dwarf2_debug_line = yes \
3011 && test $gcc_cv_as_dwarf2_file_buggy = no; then
3012 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
3013 [Define if your assembler supports dwarf2 .file/.loc directives,
3014 and preserves file table indices exactly as given.])
3017 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
3018 gcc_cv_as_gdwarf2_flag,
3019 [elf,2,11,0], [--gdwarf2], [$insn],,
3020 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
3021 [Define if your assembler supports the --gdwarf2 option.])])
3023 gcc_GAS_CHECK_FEATURE([--gstabs option],
3024 gcc_cv_as_gstabs_flag,
3025 [elf,2,11,0], [--gstabs], [$insn],
3026 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
3027 # and warns about it, but still exits successfully. So check for
3029 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
3031 else gcc_cv_as_gstabs_flag=yes
3033 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
3034 [Define if your assembler supports the --gstabs option.])])
3037 AC_MSG_CHECKING(linker read-only and read-write section mixing)
3038 gcc_cv_ld_ro_rw_mix=unknown
3039 if test $in_tree_ld = yes ; then
3040 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
3041 && test $in_tree_ld_is_elf = yes; then
3042 gcc_cv_ld_ro_rw_mix=read-write
3044 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
3045 echo '.section myfoosect, "a"' > conftest1.s
3046 echo '.section myfoosect, "aw"' > conftest2.s
3047 echo '.byte 1' >> conftest2.s
3048 echo '.section myfoosect, "a"' > conftest3.s
3049 echo '.byte 0' >> conftest3.s
3050 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
3051 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
3052 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
3053 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
3054 conftest2.o conftest3.o > /dev/null 2>&1; then
3055 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
3056 | sed -e '/myfoosect/!d' -e N`
3057 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
3058 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
3059 gcc_cv_ld_ro_rw_mix=read-only
3061 gcc_cv_ld_ro_rw_mix=read-write
3066 rm -f conftest.* conftest[123].*
3069 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
3070 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
3071 [Define if your linker links a mix of read-only
3072 and read-write sections into a read-write section.])
3074 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
3076 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
3077 gcc_cv_ld_eh_frame_hdr=no
3078 if test $in_tree_ld = yes ; then
3079 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
3080 && test $in_tree_ld_is_elf = yes; then
3081 gcc_cv_ld_eh_frame_hdr=yes
3083 elif test x$gcc_cv_ld != x; then
3084 # Check if linker supports --eh-frame-hdr option
3085 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
3086 gcc_cv_ld_eh_frame_hdr=yes
3089 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
3090 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
3091 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
3092 [Define if your linker supports --eh-frame-hdr option.])
3094 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
3096 AC_MSG_CHECKING(linker position independent executable support)
3098 if test $in_tree_ld = yes ; then
3099 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
3100 && test $in_tree_ld_is_elf = yes; then
3103 elif test x$gcc_cv_ld != x; then
3104 # Check if linker supports -pie option
3105 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
3109 if test x"$gcc_cv_ld_pie" = xyes; then
3110 AC_DEFINE(HAVE_LD_PIE, 1,
3111 [Define if your linker supports -pie option.])
3113 AC_MSG_RESULT($gcc_cv_ld_pie)
3119 AC_CACHE_CHECK(linker --as-needed support,
3120 gcc_cv_ld_as_needed,
3121 [gcc_cv_ld_as_needed=no
3122 if test $in_tree_ld = yes ; then
3123 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
3124 && test $in_tree_ld_is_elf = yes; then
3125 gcc_cv_ld_as_needed=yes
3127 elif test x$gcc_cv_ld != x; then
3128 # Check if linker supports --as-needed and --no-as-needed options
3129 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
3130 gcc_cv_ld_as_needed=yes
3134 if test x"$gcc_cv_ld_as_needed" = xyes; then
3135 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
3136 [Define if your linker supports --as-needed and --no-as-needed options.])
3139 case "$target:$tm_file" in
3140 powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
3141 AC_CACHE_CHECK(linker support for omitting dot symbols,
3142 gcc_cv_ld_no_dot_syms,
3143 [gcc_cv_ld_no_dot_syms=no
3144 if test $in_tree_ld = yes ; then
3145 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
3146 gcc_cv_ld_no_dot_syms=yes
3148 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
3149 cat > conftest1.s <<EOF
3153 cat > conftest2.s <<EOF
3154 .section ".opd","aw"
3159 .quad .LEfoo,.TOC.@tocbase,0
3165 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
3166 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
3167 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
3168 gcc_cv_ld_no_dot_syms=yes
3170 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3173 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3174 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3175 [Define if your PowerPC64 linker only needs function descriptor syms.])
3180 AC_CACHE_CHECK(linker --sysroot support,
3182 [gcc_cv_ld_sysroot=no
3183 if test $in_tree_ld = yes ; then
3184 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
3185 gcc_cv_ld_sysroot=yes
3187 elif test x$gcc_cv_ld != x; then
3188 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3189 gcc_cv_ld_sysroot=yes
3192 if test x"$gcc_cv_ld_sysroot" = xyes; then
3193 AC_DEFINE(HAVE_LD_SYSROOT, 1,
3194 [Define if your linker supports --sysroot.])
3197 if test x$with_sysroot = x && test x$host = x$target \
3198 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3199 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3200 [Define to PREFIX/include if cpp should also search that directory.])
3203 # Test for stack protector support in target C library.
3206 AC_CACHE_CHECK(__stack_chk_fail in target GNU C library,
3207 gcc_cv_libc_provides_ssp,
3208 [gcc_cv_libc_provides_ssp=no
3209 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3210 if test "x$with_sysroot" = x; then
3211 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3212 elif test "x$with_sysroot" = xyes; then
3213 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3215 glibc_header_dir="${with_sysroot}/usr/include"
3218 glibc_header_dir=/usr/include
3220 # glibc 2.4 and later provides __stack_chk_fail and
3221 # either __stack_chk_guard, or TLS access to stack guard canary.
3222 if test -f $glibc_header_dir/features.h \
3223 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
3224 $glibc_header_dir/features.h > /dev/null; then
3225 if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
3226 $glibc_header_dir/features.h > /dev/null; then
3227 gcc_cv_libc_provides_ssp=yes
3228 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
3229 $glibc_header_dir/features.h > /dev/null \
3230 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
3231 $glibc_header_dir/features.h > /dev/null; then
3232 gcc_cv_libc_provides_ssp=yes
3235 *) gcc_cv_libc_provides_ssp=no ;;
3237 if test x$gcc_cv_libc_provides_ssp = xyes; then
3238 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
3239 [Define if your target C library provides stack protector support])
3242 # Check if TFmode long double should be used by default or not.
3243 # Some glibc targets used DFmode long double, but with glibc 2.4
3244 # and later they can use TFmode.
3246 powerpc*-*-*gnu* | \
3250 AC_ARG_WITH(long-double-128,
3251 [ --with-long-double-128 Use 128-bit long double by default.],
3252 gcc_cv_target_ldbl128="$with_long_double_128",
3253 [gcc_cv_target_ldbl128=no
3254 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3255 if test "x$with_sysroot" = x; then
3256 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3257 elif test "x$with_sysroot" = xyes; then
3258 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3260 glibc_header_dir="${with_sysroot}/usr/include"
3263 glibc_header_dir=/usr/include
3266 grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \
3267 $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \
3268 && gcc_cv_target_ldbl128=yes
3273 if test x$gcc_cv_target_ldbl128 = xyes; then
3274 AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1,
3275 [Define if TFmode long double should be the default])
3278 # Find out what GC implementation we want, or may, use.
3280 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3288 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3291 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3296 echo "Using $GGC for garbage collection."
3298 # Use the system's zlib library.
3300 zlibinc="-I\$(srcdir)/../zlib"
3301 AC_ARG_WITH(system-zlib,
3302 [ --with-system-zlib use installed libz],
3309 dnl Very limited version of automake's enable-maintainer-mode
3311 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3312 dnl maintainer-mode is disabled by default
3313 AC_ARG_ENABLE(maintainer-mode,
3314 [ --enable-maintainer-mode
3315 enable make rules and dependencies not useful
3316 (and sometimes confusing) to the casual installer],
3317 maintainer_mode=$enableval,
3320 AC_MSG_RESULT($maintainer_mode)
3322 if test "$maintainer_mode" = "yes"; then
3333 # Make empty files to contain the specs and options for each language.
3334 # Then add #include lines to for a compiler that has specs and/or options.
3340 # These (without "all_") are set in each config-lang.in.
3341 # `language' must be a single word so is spelled singularly.
3346 all_outputs='Makefile gccbug mklibgcc libada-mk'
3347 # List of language makefile fragments.
3349 # List of language subdirectory makefiles. Deprecated.
3351 # Files for gengtype
3352 all_gtfiles="$target_gtfiles"
3353 # Files for gengtype with language
3354 all_gtfiles_files_langs=
3355 all_gtfiles_files_files=
3357 # These are the languages that are set in --enable-languages,
3358 # and are available in the GCC tree.
3359 all_selected_languages=
3361 # Add the language fragments.
3362 # Languages are added via two mechanisms. Some information must be
3363 # recorded in makefile variables, these are defined in config-lang.in.
3364 # We accumulate them and plug them into the main Makefile.
3365 # The other mechanism is a set of hooks for each of the main targets
3366 # like `clean', `install', etc.
3368 language_hooks="Make-hooks"
3370 for lang in ${srcdir}/*/config-lang.in
3373 test "$lang" = "${srcdir}/*/config-lang.in" && continue
3375 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
3376 if test "x$lang_alias" = x
3378 echo "$lang doesn't set \$language." 1>&2
3381 subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
3382 subdirs="$subdirs $subdir"
3383 case ",$enable_languages," in
3385 all_selected_languages="$all_selected_languages $lang_alias"
3386 if test -f $srcdir/$subdir/lang-specs.h; then
3387 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3400 . ${srcdir}/$subdir/config-lang.in
3401 if test "x$language" = x
3403 echo "${srcdir}/$subdir/config-lang.in doesn't set \$language." 1>&2
3408 case ",$enable_languages," in
3411 for i in $subdir_requires; do
3412 test -f "${srcdir}/$i/config-lang.in" && continue
3420 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$subdir/Make-lang.in"
3421 if test -f $srcdir/$subdir/lang.opt; then
3422 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3424 if test -f $srcdir/$subdir/$subdir-tree.def; then
3425 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3427 if test -f ${srcdir}/$subdir/Makefile.in
3428 then all_lang_makefiles="$subdir/Makefile"
3430 all_languages="$all_languages $language"
3431 if test "x$boot_language" = xyes
3433 all_boot_languages="$all_boot_languages $language"
3435 all_compilers="$all_compilers $compilers"
3436 all_stagestuff="$all_stagestuff $stagestuff"
3437 all_outputs="$all_outputs $outputs"
3438 all_gtfiles="$all_gtfiles $gtfiles"
3441 all_gtfiles_files_langs="$all_gtfiles_files_langs ${subdir} "
3442 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3446 # Pick up gtfiles for c
3449 . ${srcdir}/c-config-lang.in
3450 all_gtfiles="$all_gtfiles $gtfiles"
3453 all_gtfiles_files_langs="$all_gtfiles_files_langs ${subdir} "
3454 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3458 for language in $all_selected_languages
3460 check_languages="$check_languages check-$language"
3463 # We link each language in with a set of hooks, reached indirectly via
3464 # lang.${target}. Only do so for selected languages.
3468 target_list="all.cross start.encap rest.encap tags \
3469 install-common install-man install-info dvi pdf html \
3470 uninstall info man srcextra srcman srcinfo \
3471 mostlyclean clean distclean maintainer-clean \
3472 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3474 for t in $target_list
3477 for lang in $all_selected_languages
3481 echo "lang.$t: $x" >> Make-hooks
3490 echo "dir ." > .gdbinit
3491 echo "dir ${srcdir}" >> .gdbinit
3492 if test x$gdb_needs_out_file_path = xyes
3494 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3496 if test "x$subdirs" != x; then
3499 echo "dir ${srcdir}/$s" >> .gdbinit
3502 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3504 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3505 # absolute path for gcc_tooldir based on inserting the number of up-directory
3506 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3507 # $(libsubdir)/@(unlibsubdir) based path.
3508 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3509 # make and thus we'd get different behavior depending on where we built the
3511 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3512 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3514 changequote(<<, >>)dnl
3515 # An explanation of the sed strings:
3516 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3517 # -e 's|/$||' match a trailing forward slash and eliminates it
3518 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3519 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3521 # (*) Note this pattern overwrites the first character of the string
3522 # with a forward slash if one is not already present. This is not a
3523 # problem because the exact names of the sub-directories concerned is
3524 # unimportant, just the number of them matters.
3526 # The practical upshot of these patterns is like this:
3528 # prefix exec_prefix result
3529 # ------ ----------- ------
3531 # /foo/ /foo/bar ../
3532 # /foo /foo/bar/ ../
3533 # /foo/ /foo/bar/ ../
3534 # /foo /foo/bar/ugg ../../
3537 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3538 changequote([, ])dnl
3540 AC_SUBST(gcc_tooldir)
3543 # Find a directory in which to install a shared libgcc.
3545 AC_ARG_ENABLE(version-specific-runtime-libs,
3546 [ --enable-version-specific-runtime-libs
3547 specify that runtime libraries should be
3548 installed in a compiler-specific directory])
3550 AC_ARG_WITH(slibdir,
3551 [ --with-slibdir=DIR shared libraries in DIR [[LIBDIR]]],
3552 slibdir="$with_slibdir",
3553 if test "${enable_version_specific_runtime_libs+set}" = set; then
3554 slibdir='$(libsubdir)'
3555 elif test "$host" != "$target"; then
3556 slibdir='$(build_tooldir)/lib'
3562 objdir=`${PWDCMD-pwd}`
3565 AC_ARG_WITH(datarootdir,
3566 [ --with-datarootdir=DIR Use DIR as the data root [[PREFIX/share]]],
3567 datarootdir="\${prefix}/$with_datarootdir",
3568 datarootdir='$(prefix)/share')
3569 AC_SUBST(datarootdir)
3572 [ --with-docdir=DIR Install documentation in DIR [[DATAROOTDIR]]],
3573 docdir="\${prefix}/$with_docdir",
3574 docdir='$(datarootdir)')
3577 AC_ARG_WITH(htmldir,
3578 [ --with-htmldir=DIR html documentation in in DIR [[DOCDIR]]],
3579 htmldir="\${prefix}/$with_htmldir",
3580 htmldir='$(docdir)')
3583 # Substitute configuration variables
3586 AC_SUBST(all_boot_languages)
3587 AC_SUBST(all_compilers)
3588 AC_SUBST(all_gtfiles)
3589 AC_SUBST(all_gtfiles_files_langs)
3590 AC_SUBST(all_gtfiles_files_files)
3591 AC_SUBST(all_lang_makefrags)
3592 AC_SUBST(all_lang_makefiles)
3593 AC_SUBST(all_languages)
3594 AC_SUBST(all_selected_languages)
3595 AC_SUBST(all_stagestuff)
3596 AC_SUBST(build_exeext)
3597 AC_SUBST(build_install_headers_dir)
3598 AC_SUBST(build_xm_file_list)
3599 AC_SUBST(build_xm_include_list)
3600 AC_SUBST(build_xm_defines)
3601 AC_SUBST(check_languages)
3602 AC_SUBST(cc_set_by_configure)
3603 AC_SUBST(quoted_cc_set_by_configure)
3604 AC_SUBST(cpp_install_dir)
3605 AC_SUBST(xmake_file)
3606 AC_SUBST(tmake_file)
3607 AC_SUBST(extra_gcc_objs)
3608 AC_SUBST(extra_headers_list)
3609 AC_SUBST(extra_objs)
3610 AC_SUBST(extra_parts)
3611 AC_SUBST(extra_passes)
3612 AC_SUBST(extra_programs)
3613 AC_SUBST(float_h_file)
3614 AC_SUBST(gcc_config_arguments)
3615 AC_SUBST(gcc_gxx_include_dir)
3616 AC_SUBST(host_exeext)
3617 AC_SUBST(host_xm_file_list)
3618 AC_SUBST(host_xm_include_list)
3619 AC_SUBST(host_xm_defines)
3620 AC_SUBST(out_host_hook_obj)
3622 AC_SUBST(lang_opt_files)
3623 AC_SUBST(lang_specs_files)
3624 AC_SUBST(lang_tree_files)
3625 AC_SUBST(local_prefix)
3627 AC_SUBST(objc_boehm_gc)
3629 AC_SUBST(out_object_file)
3630 AC_SUBST(stage_prefix_set_by_configure)
3631 AC_SUBST(quoted_stage_prefix_set_by_configure)
3632 AC_SUBST(thread_file)
3633 AC_SUBST(tm_file_list)
3634 AC_SUBST(tm_include_list)
3635 AC_SUBST(tm_defines)
3636 AC_SUBST(tm_p_file_list)
3637 AC_SUBST(tm_p_include_list)
3638 AC_SUBST(xm_file_list)
3639 AC_SUBST(xm_include_list)
3640 AC_SUBST(xm_defines)
3641 AC_SUBST(c_target_objs)
3642 AC_SUBST(cxx_target_objs)
3643 AC_SUBST(target_cpu_default)
3645 AC_SUBST_FILE(language_hooks)
3648 if test x${build} = x${host} ; then
3649 if test x${host} = x${target} ; then
3650 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3652 echo "Links are now set up to build a cross-compiler" 1>&2
3653 echo " from ${host} to ${target}." 1>&2
3656 if test x${host} = x${target} ; then
3657 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3658 echo " for ${target}." 1>&2
3660 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3661 echo " from ${host} to ${target}." 1>&2
3665 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3666 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3668 # Configure the subdirectories
3669 # AC_CONFIG_SUBDIRS($subdirs)
3671 # Create the Makefile
3672 # and configure language subdirectories
3673 AC_CONFIG_FILES($all_outputs)
3675 AC_CONFIG_COMMANDS([default],
3677 case ${CONFIG_HEADERS} in
3678 *auto-host.h:config.in*)
3681 # Make sure all the subdirs exist.
3682 for d in $subdirs doc build
3684 test -d $d || mkdir $d
3686 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3687 # bootstrapping and the installation procedure can still use
3688 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3689 # FLAGS_TO_PASS has been modified to solve the problem there.
3690 # This is virtually a duplicate of what happens in configure.lang; we do
3691 # an extra check to make sure this only happens if ln -s can be used.
3694 for d in ${subdirs} ; do
3695 STARTDIR=`${PWDCMD-pwd}`
3697 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3700 $LN_S ../$t $t 2>/dev/null
3707 [subdirs='$subdirs'])