2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
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 if test x${gcc_gxx_include_dir} = x; then
136 if test x${enable_version_specific_runtime_libs} = xyes; then
137 gcc_gxx_include_dir='${libsubdir}/include/c++'
139 libstdcxx_incdir='c++/$(version)'
140 changequote(<<, >>)dnl
141 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
146 AC_ARG_WITH(cpp_install_dir,
147 [ --with-cpp-install-dir=DIR
148 install the user visible C preprocessor in DIR
149 (relative to PREFIX) as well as PREFIX/bin],
150 [if test x$withval = xyes; then
151 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
152 elif test x$withval != xno; then
153 cpp_install_dir=$withval
156 # We would like to our source tree to be readonly. However when releases or
157 # pre-releases are generated, the flex/bison generated files as well as the
158 # various formats of manuals need to be included along with the rest of the
159 # sources. Therefore we have --enable-generated-files-in-srcdir to do
162 AC_MSG_CHECKING([whether to place generated files in the source directory])
163 dnl generated-files-in-srcdir is disabled by default
164 AC_ARG_ENABLE(generated-files-in-srcdir,
165 [ --enable-generated-files-in-srcdir
166 put copies of generated files in source dir
167 intended for creating source tarballs for users
168 without texinfo bison or flex.],
169 generated_files_in_srcdir=$enableval,
170 generated_files_in_srcdir=no)
172 AC_MSG_RESULT($generated_files_in_srcdir)
174 if test "$generated_files_in_srcdir" = "yes"; then
181 # -------------------
182 # Find default linker
183 # -------------------
187 [ --with-gnu-ld arrange to work with GNU ld.],
188 gnu_ld_flag="$with_gnu_ld",
191 # With pre-defined ld
193 [ --with-ld arrange to use the specified ld (full pathname)],
194 DEFAULT_LINKER="$with_ld")
195 if test x"${DEFAULT_LINKER+set}" = x"set"; then
196 if test ! -x "$DEFAULT_LINKER"; then
197 AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
198 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
201 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
202 [Define to enable the use of a default linker.])
205 AC_MSG_CHECKING([whether a default linker was specified])
206 if test x"${DEFAULT_LINKER+set}" = x"set"; then
207 if test x"$gnu_ld_flag" = x"no"; then
208 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
210 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
216 # With demangler in GNU ld
217 AC_ARG_WITH(demangler-in-ld,
218 [ --with-demangler-in-ld try to use demangler in GNU ld.],
219 demangler_in_ld="$with_demangler_in_ld",
222 # ----------------------
223 # Find default assembler
224 # ----------------------
228 [ --with-gnu-as arrange to work with GNU as],
229 gas_flag="$with_gnu_as",
233 [ --with-as arrange to use the specified as (full pathname)],
234 DEFAULT_ASSEMBLER="$with_as")
235 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
236 if test ! -x "$DEFAULT_ASSEMBLER"; then
237 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
238 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
241 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
242 [Define to enable the use of a default assembler.])
245 AC_MSG_CHECKING([whether a default assembler was specified])
246 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
247 if test x"$gas_flag" = x"no"; then
248 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
250 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
260 # If a non-executable a.out is present (e.g. created by GNU as above even if
261 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
262 # file, even when creating an executable, so an execution test fails.
263 # Remove possible default executable files to avoid this.
265 # FIXME: This really belongs into AC_PROG_CC and can be removed once
266 # Autoconf includes it.
267 rm -f a.out a.exe b.out
269 # Find the native compiler
272 # autoconf is lame and doesn't give us any substitution variable for this.
273 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
274 NO_MINUS_C_MINUS_O=yes
276 OUTPUT_OPTION='-o $@'
278 AC_SUBST(NO_MINUS_C_MINUS_O)
279 AC_SUBST(OUTPUT_OPTION)
281 # -------------------------
282 # Check C compiler features
283 # -------------------------
288 # sizeof(char) is 1 by definition.
289 AC_CHECK_SIZEOF(void *)
290 AC_CHECK_SIZEOF(short)
292 AC_CHECK_SIZEOF(long)
293 AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
294 AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)])
296 # ---------------------
297 # Warnings and checking
298 # ---------------------
300 # Check $CC warning features (if it's GCC).
301 # We want to use -pedantic, but we don't want warnings about
305 # So, we only use -pedantic if we can disable those warnings.
308 [whether ${CC} accepts -Wno-long-long],
309 [ac_cv_prog_cc_w_no_long_long],
310 [save_CFLAGS="$CFLAGS"
311 CFLAGS="-Wno-long-long"
312 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
313 [ac_cv_prog_cc_w_no_long_long=yes],
314 [ac_cv_prog_cc_w_no_long_long=no])
315 CFLAGS="$save_CFLAGS"
319 [whether ${CC} accepts -Wno-variadic-macros],
320 [ac_cv_prog_cc_w_no_variadic_macros],
321 [save_CFLAGS="$CFLAGS"
322 CFLAGS="-Wno-variadic-macros"
323 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
324 [ac_cv_prog_cc_w_no_variadic_macros=yes],
325 [ac_cv_prog_cc_w_no_variadic_macros=no])
326 CFLAGS="$save_CFLAGS"
330 [whether ${CC} accepts -Wno-overlength-strings],
331 [ac_cv_prog_cc_w_no_overlength_strings],
332 [save_CFLAGS="$CFLAGS"
333 CFLAGS="-Wno-overlength-strings"
334 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
335 [ac_cv_prog_cc_w_no_overlength_strings=yes],
336 [ac_cv_prog_cc_w_no_overlength_strings=no])
337 CFLAGS="$save_CFLAGS"
341 if test $ac_cv_prog_cc_w_no_long_long = yes \
342 && test $ac_cv_prog_cc_w_no_variadic_macros = yes \
343 && test $ac_cv_prog_cc_w_no_overlength_strings = yes ; then
344 strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings"
347 # Add -Wold-style-definition if it's accepted
349 [whether ${CC} accepts -Wold-style-definition],
350 [ac_cv_prog_cc_w_old_style_definition],
351 [save_CFLAGS="$CFLAGS"
352 CFLAGS="-Wold-style-definition"
353 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
354 [ac_cv_prog_cc_w_old_style_definition=yes],
355 [ac_cv_prog_cc_w_old_style_definition=no])
356 CFLAGS="$save_CFLAGS"
358 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
359 strict1_warn="${strict1_warn} -Wold-style-definition"
362 # Add -Wmissing-format-attribute if it's accepted
364 [whether ${CC} accepts -Wmissing-format-attribute],
365 [ac_cv_prog_cc_w_missing_format_attribute],
366 [save_CFLAGS="$CFLAGS"
367 CFLAGS="-Wmissing-format-attribute"
368 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
369 [ac_cv_prog_cc_w_missing_format_attribute=yes],
370 [ac_cv_prog_cc_w_missing_format_attribute=no])
371 CFLAGS="$save_CFLAGS"
373 if test $ac_cv_prog_cc_w_missing_format_attribute = yes ; then
374 strict1_warn="${strict1_warn} -Wmissing-format-attribute"
377 # Enable -Werror, period.
378 AC_ARG_ENABLE(werror_always,
379 [ --enable-werror-always enable -Werror always], [],
380 [enable_werror_always=no])
381 if test x${enable_werror_always} = xyes ; then
382 strict1_warn="${strict1_warn} -Werror"
386 AC_SUBST(strict1_warn)
388 # Get C++ compatibility warning flag, if supported.
390 [whether ${CC} accepts -Wc++-compat],
391 [ac_cv_prog_cc_w_cxx_compat],
392 [save_CFLAGS="$CFLAGS"
393 CFLAGS="-Wc++-compat"
394 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
395 [ac_cv_prog_cc_w_cxx_compat=yes],
396 [ac_cv_prog_cc_w_cxx_compat=no])
397 CFLAGS="$save_CFLAGS"
399 if test x${ac_cv_prog_cc_w_cxx_compat} = xyes; then
400 cxx_compat_warn="-Wc++-compat"
402 AC_SUBST(cxx_compat_warn)
405 # If the native compiler is GCC, we can enable warnings even in stage1.
406 # That's useful for people building cross-compilers, or just running a
409 if test "x$GCC" = "xyes"; then
410 warn_cflags='$(GCC_WARN_CFLAGS)'
412 AC_SUBST(warn_cflags)
414 # Enable -Werror in bootstrap stage2 and later.
416 if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
419 AC_ARG_ENABLE(werror,
420 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
421 [if test x$is_release = x ; then
422 # Default to "yes" on development branches.
425 # Default to "no" on release branches.
428 if test x$enable_werror = xyes ; then
433 # Enable expensive internal checks
434 AC_ARG_ENABLE(checking,
435 [ --enable-checking[=LIST]
436 enable expensive run-time checks. With LIST,
437 enable only specific categories of checks.
438 Categories are: yes,no,all,none,release.
439 Flags are: assert,fold,gc,gcac,misc,
440 rtlflag,rtl,runtime,tree,valgrind.],
441 [ac_checking_flags="${enableval}"],[
442 # Determine the default checks.
443 if test x$is_release = x ; then
444 ac_checking_flags=yes
446 ac_checking_flags=release
452 ac_gc_always_collect=
455 ac_runtime_checking=1
457 ac_valgrind_checking=
458 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
459 for check in $ac_checking_flags
462 # these set all the flags to specific states
463 yes) ac_assert_checking=1 ; ac_checking=1 ;
464 ac_fold_checking= ; ac_gc_checking=1 ;
465 ac_gc_always_collect= ; ac_rtl_checking= ;
466 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
467 ac_tree_checking=1 ; ac_valgrind_checking= ;;
468 no|none) ac_assert_checking= ; ac_checking= ;
469 ac_fold_checking= ; ac_gc_checking= ;
470 ac_gc_always_collect= ; ac_rtl_checking= ;
471 ac_rtlflag_checking= ; ac_runtime_checking= ;
472 ac_tree_checking= ; ac_valgrind_checking= ;;
473 all) ac_assert_checking=1 ; ac_checking=1 ;
474 ac_fold_checking=1 ; ac_gc_checking=1 ;
475 ac_gc_always_collect=1 ; ac_rtl_checking=1 ;
476 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
477 ac_tree_checking=1 ; ac_valgrind_checking= ;;
478 release) ac_assert_checking=1 ; ac_checking= ;
479 ac_fold_checking= ; ac_gc_checking= ;
480 ac_gc_always_collect= ; ac_rtl_checking= ;
481 ac_rtlflag_checking= ; ac_runtime_checking=1 ;
482 ac_tree_checking= ; ac_valgrind_checking= ;;
483 # these enable particular checks
484 assert) ac_assert_checking=1 ;;
485 fold) ac_fold_checking=1 ;;
486 gc) ac_gc_checking=1 ;;
487 gcac) ac_gc_always_collect=1 ;;
488 misc) ac_checking=1 ;;
489 rtl) ac_rtl_checking=1 ;;
490 rtlflag) ac_rtlflag_checking=1 ;;
491 runtime) ac_runtime_checking=1 ;;
492 tree) ac_tree_checking=1 ;;
493 valgrind) ac_valgrind_checking=1 ;;
494 *) AC_MSG_ERROR(unknown check category $check) ;;
500 if test x$ac_checking != x ; then
501 AC_DEFINE(ENABLE_CHECKING, 1,
502 [Define if you want more run-time sanity checks. This one gets a grab
503 bag of miscellaneous but relatively cheap checks.])
504 nocommon_flag=-fno-common
506 AC_SUBST(nocommon_flag)
507 if test x$ac_assert_checking != x ; then
508 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
509 [Define if you want assertions enabled. This is a cheap check.])
511 GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING)
512 if test x$ac_runtime_checking != x ; then
513 AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
514 [Define if you want runtime assertions enabled. This is a cheap check.])
516 if test x$ac_tree_checking != x ; then
517 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
518 [Define if you want all operations on trees (the basic data
519 structure of the front ends) to be checked for dynamic type safety
520 at runtime. This is moderately expensive. The tree browser debugging
521 routines will also be enabled by this option.
523 TREEBROWSER=tree-browser.o
525 AC_SUBST(TREEBROWSER)
526 if test x$ac_rtl_checking != x ; then
527 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
528 [Define if you want all operations on RTL (the basic data structure
529 of the optimizer and back end) to be checked for dynamic type safety
530 at runtime. This is quite expensive.])
532 if test x$ac_rtlflag_checking != x ; then
533 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
534 [Define if you want RTL flag accesses to be checked against the RTL
535 codes that are supported for each access macro. This is relatively
538 if test x$ac_gc_checking != x ; then
539 AC_DEFINE(ENABLE_GC_CHECKING, 1,
540 [Define if you want the garbage collector to do object poisoning and
541 other memory allocation checks. This is quite expensive.])
543 if test x$ac_gc_always_collect != x ; then
544 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
545 [Define if you want the garbage collector to operate in maximally
546 paranoid mode, validating the entire heap and collecting garbage at
547 every opportunity. This is extremely expensive.])
549 if test x$ac_fold_checking != x ; then
550 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
551 [Define if you want fold checked that it never destructs its argument.
552 This is quite expensive.])
554 valgrind_path_defines=
557 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
558 dnl # an if statement. This was the source of very frustrating bugs
559 dnl # in converting to autoconf 2.5x!
560 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
562 if test x$ac_valgrind_checking != x ; then
563 # It is certainly possible that there's valgrind but no valgrind.h.
564 # GCC relies on making annotations so we must have both.
565 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
566 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
567 [[#include <valgrind/memcheck.h>
568 #ifndef VALGRIND_DISCARD
569 #error VALGRIND_DISCARD not defined
571 [gcc_cv_header_valgrind_memcheck_h=yes],
572 [gcc_cv_header_valgrind_memcheck_h=no])
573 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
574 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
575 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
576 [[#include <memcheck.h>
577 #ifndef VALGRIND_DISCARD
578 #error VALGRIND_DISCARD not defined
580 [gcc_cv_header_memcheck_h=yes],
581 [gcc_cv_header_memcheck_h=no])
582 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
583 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
584 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
585 if test "x$valgrind_path" = "x" \
586 || (test $have_valgrind_h = no \
587 && test $gcc_cv_header_memcheck_h = no \
588 && test $gcc_cv_header_valgrind_memcheck_h = no); then
589 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
591 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
592 valgrind_command="$valgrind_path -q"
593 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
594 [Define if you want to run subprograms and generated programs
595 through valgrind (a memory checker). This is extremely expensive.])
596 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
597 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
598 [Define if valgrind's valgrind/memcheck.h header is installed.])
600 if test $gcc_cv_header_memcheck_h = yes; then
601 AC_DEFINE(HAVE_MEMCHECK_H, 1,
602 [Define if valgrind's memcheck.h header is installed.])
605 AC_SUBST(valgrind_path_defines)
606 AC_SUBST(valgrind_command)
608 AC_ARG_ENABLE(mapped-location,
609 [ --enable-mapped-location location_t is fileline integer cookie],,
610 enable_mapped_location=no)
612 if test "$enable_mapped_location" = yes ; then
613 AC_DEFINE(USE_MAPPED_LOCATION, 1,
614 [Define if location_t is fileline integer cookie.])
617 # Enable code coverage collection
618 AC_ARG_ENABLE(coverage,
619 [ --enable-coverage[=LEVEL]
620 enable compiler's code coverage collection.
621 Use to measure compiler performance and locate
622 unused parts of the compiler. With LEVEL, specify
623 optimization. Values are opt, noopt,
625 [case "${enableval}" in
627 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
630 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
633 # a.k.a. --disable-coverage
637 AC_MSG_ERROR(unknown coverage setting $enableval)
641 AC_SUBST(coverage_flags)
643 AC_ARG_ENABLE(gather-detailed-mem-stats,
644 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
645 [enable_gather_detailed_mem_stats=no])
646 if test x$enable_gather_detailed_mem_stats = xyes ; then
647 AC_DEFINE(GATHER_STATISTICS, 1,
648 [Define to enable detailed memory allocation stats gathering.])
651 # -------------------------------
652 # Miscenalleous configure options
653 # -------------------------------
657 [ --with-stabs arrange to use stabs instead of host debug format],
661 # Determine whether or not multilibs are enabled.
662 AC_ARG_ENABLE(multilib,
663 [ --enable-multilib enable library support for multiple ABIs],
664 [], [enable_multilib=yes])
665 AC_SUBST(enable_multilib)
667 # Enable __cxa_atexit for C++.
668 AC_ARG_ENABLE(__cxa_atexit,
669 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
672 # Enable C extension for decimal float if target supports it.
673 AC_ARG_ENABLE(decimal-float,
674 [ --enable-decimal-float enable decimal float extension to C],
676 if test x$enablevar = xyes ; then
678 powerpc*-*-linux* | i?86*-*-linux*)
679 enable_decimal_float=yes
682 AC_MSG_WARN(decimal float is not supported for this target, ignored)
683 enable_decimal_float=no
687 ], [enable_decimal_float=no])
689 AC_SUBST(enable_decimal_float)
691 dfp=`if test $enable_decimal_float = yes; then echo 1; else echo 0; fi`
692 AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp,
693 [Define to 1 to enable decimal float extension to C.])
696 # Pass with no value to take the default
697 # Pass with a value to specify a thread package
698 AC_ARG_ENABLE(threads,
699 [ --enable-threads enable thread usage for target GCC
700 --enable-threads=LIB use LIB thread package for target GCC],,
704 [ --enable-tls enable or disable generation of tls code
705 overriding the assembler check for tls support],
709 *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls.
710 Valid choices are 'yes' and 'no'.]) ;;
714 AC_ARG_ENABLE(objc-gc,
715 [ --enable-objc-gc enable the use of Boehm's garbage collector with
716 the GNU Objective-C runtime],
717 if test x$enable_objc_gc = xno; then
725 [ --with-dwarf2 force the default debug format to be DWARF 2],
726 dwarf2="$with_dwarf2",
729 AC_ARG_ENABLE(shared,
730 [ --disable-shared don't provide a shared libgcc],
732 case $enable_shared in
736 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
737 for pkg in $enableval; do
738 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
745 ], [enable_shared=yes])
746 AC_SUBST(enable_shared)
748 AC_ARG_WITH(build-sysroot,
749 [ --with-build-sysroot=sysroot
750 use sysroot as the system root during the build])
753 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
755 case ${with_sysroot} in
756 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
757 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
760 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
761 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
763 if test "x$exec_prefix" = xNONE; then
764 if test "x$prefix" = xNONE; then
765 test_prefix=/usr/local
770 test_prefix=$exec_prefix
772 case ${TARGET_SYSTEM_ROOT} in
773 "${test_prefix}"|"${test_prefix}/"*|\
774 '${exec_prefix}'|'${exec_prefix}/'*)
775 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
776 TARGET_SYSTEM_ROOT_DEFINE="$t"
781 TARGET_SYSTEM_ROOT_DEFINE=
782 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
784 AC_SUBST(TARGET_SYSTEM_ROOT)
785 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
786 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
788 # Build with intermodule optimisations
789 AC_ARG_ENABLE(intermodule,
790 [ --enable-intermodule build the compiler in one step],
791 [case ${enable_intermodule} in
792 yes) onestep="-onestep";;
798 # Sanity check enable_languages in case someone does not run the toplevel
799 # configure # script.
800 AC_ARG_ENABLE(languages,
801 [ --enable-languages=LIST specify which front-ends to build],
802 [case ,${enable_languages}, in
804 # go safe -- we cannot be much sure without the toplevel
806 # analysis of which target libs are present and usable
810 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
815 enable_languages=c,${enable_languages}
818 [enable_languages=c])
821 # -------------------------
822 # Checks for other programs
823 # -------------------------
827 # Find some useful tools
829 # We need awk to create options.c and options.h.
830 # Bail out if it's missing.
832 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
840 # By default, the Darwin ranlib will not treat common symbols as
841 # definitions when building the archive table of contents. Other
842 # ranlibs do that; pass an option to the Darwin ranlib that makes
843 # it behave similarly.
849 AC_SUBST(ranlib_flags)
853 # See if cmp has --ignore-initial.
854 gcc_AC_PROG_CMP_IGNORE_INITIAL
856 # See if we have the mktemp command.
857 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
859 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
861 # See if makeinfo has been installed and is modern enough
862 # that we can use it.
863 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
864 [GNU texinfo.* \([0-9][0-9.]*\)],
866 if test $gcc_cv_prog_makeinfo_modern = no; then
867 MAKEINFO="$MISSING makeinfo"
869 *** Makeinfo is missing or too old.
870 *** Info documentation will not be built.])
877 # Is pod2man recent enough to regenerate manpages?
878 AC_MSG_CHECKING([for recent Pod::Man])
879 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
881 GENERATED_MANPAGES=generated-manpages
886 AC_SUBST(GENERATED_MANPAGES)
889 dnl Don't use AC_PROG_LEX; we insist on flex.
890 dnl LEXLIB is not useful in gcc.
891 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
894 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
896 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
897 # check for build == host before using them.
900 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
901 && test -d ../binutils ; then
902 NM='$(objdir)/../binutils/nm-new'
904 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
908 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
909 && test -d ../binutils ; then
910 AR='$(objdir)/../binutils/ar'
912 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
916 # --------------------
917 # Checks for C headers
918 # --------------------
920 AC_MSG_CHECKING(for GNU C library)
921 AC_CACHE_VAL(gcc_cv_glibc,
922 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
923 [[#include <features.h>]], [[
924 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
925 #error Not a GNU C library system
929 AC_MSG_RESULT($gcc_cv_glibc)
930 if test $gcc_cv_glibc = yes; then
931 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
934 # Need to reject headers which give warnings, so that the -Werror bootstrap
935 # works later. *sigh* This needs to come before all header checks.
942 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
943 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
944 sys/resource.h sys/param.h sys/times.h sys/stat.h \
945 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
947 # Check for thread headers.
948 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
949 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
951 # These tests can't be done till we know if we have limits.h.
959 # Stage specific cflags for build.
965 stage1_cflags="-Wa,-J"
971 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
972 # sources; use -no-cpp-precomp to get to GNU cpp.
973 # Apple's GCC has bugs in designated initializer handling, so disable
975 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
978 AC_SUBST(stage1_cflags)
980 # These libraries may be used by collect2.
981 # We may need a special search path to get them linked.
982 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
984 for libs in '' -lld -lmld \
985 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
986 '-L/usr/lib/cmplrs/cc3.11 -lmld'
989 AC_TRY_LINK_FUNC(ldopen,
990 [gcc_cv_collect2_libs="$libs"; break])
993 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
994 case $gcc_cv_collect2_libs in
996 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
998 AC_SUBST(COLLECT2_LIBS)
1000 # When building Ada code on Alpha, we need exc_resume which is usually in
1001 # -lexc. So test for it.
1004 AC_SEARCH_LIBS(exc_resume, exc)
1007 AC_SUBST(GNAT_LIBEXC)
1009 # Some systems put ldexp and frexp in libm instead of libc; assume
1010 # they're both in the same place. jcf-dump needs them.
1013 AC_SEARCH_LIBS(ldexp, m)
1018 # Use <inttypes.h> only if it exists,
1019 # doesn't clash with <sys/types.h>, and declares intmax_t.
1020 AC_MSG_CHECKING(for inttypes.h)
1021 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
1022 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1023 [[#include <sys/types.h>
1024 #include <inttypes.h>]],
1025 [[intmax_t i = -1;]])],
1026 [gcc_cv_header_inttypes_h=yes],
1027 [gcc_cv_header_inttypes_h=no])])
1028 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
1029 if test $gcc_cv_header_inttypes_h = yes; then
1030 AC_DEFINE(HAVE_INTTYPES_H, 1,
1031 [Define if you have a working <inttypes.h> header file.])
1034 dnl Disabled until we have a complete test for buggy enum bitfields.
1035 dnl gcc_AC_C_ENUM_BF_UNSIGNED
1037 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
1038 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
1039 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
1040 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
1041 putchar_unlocked putc_unlocked)
1042 AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
1043 sysconf strsignal getrusage nl_langinfo scandir alphasort \
1044 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
1047 if test x$ac_cv_func_mbstowcs = xyes; then
1048 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
1049 [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
1055 [gcc_cv_func_mbstowcs_works=yes],
1056 [gcc_cv_func_mbstowcs_works=no],
1057 [gcc_cv_func_mbstowcs_works=yes])])
1058 if test x$gcc_cv_func_mbstowcs_works = xyes; then
1059 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1060 [Define this macro if mbstowcs does not crash when its
1061 first argument is NULL.])
1065 AC_CHECK_TYPE(ssize_t, int)
1067 # Try to determine the array type of the second argument of getgroups
1068 # for the target system (int or gid_t).
1070 if test "${target}" = "${build}"; then
1071 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
1074 # This condition may need some tweaking. It should include all
1075 # targets where the array type of the second argument of getgroups
1076 # is int and the type of gid_t is not equivalent to int.
1077 *-*-sunos* | *-*-ultrix*)
1078 TARGET_GETGROUPS_T=int
1081 TARGET_GETGROUPS_T=gid_t
1085 AC_SUBST(TARGET_GETGROUPS_T)
1087 gcc_AC_FUNC_MMAP_BLACKLIST
1091 # Under VMS, vfork works very differently than on Unix. The standard test
1092 # won't work, and it isn't easily adaptable. It makes more sense to
1094 ac_cv_func_vfork_works=yes
1100 # Until we have in-tree GNU iconv:
1102 AC_SUBST(LIBICONV_DEP)
1108 # We will need to find libiberty.h and ansidecl.h
1109 saved_CFLAGS="$CFLAGS"
1110 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1111 gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
1112 strsignal strstr strverscmp \
1113 errno snprintf vsnprintf vasprintf malloc realloc calloc \
1114 free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1115 #include "ansidecl.h"
1116 #include "system.h"])
1118 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1119 #include "ansidecl.h"
1121 #ifdef HAVE_SYS_RESOURCE_H
1122 #include <sys/resource.h>
1126 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1127 #include "ansidecl.h"
1129 #ifdef HAVE_SYS_RESOURCE_H
1130 #include <sys/resource.h>
1132 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
1133 [Define to \`long' if <sys/resource.h> doesn't define.])])
1135 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1136 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1137 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1138 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1139 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1140 #include "ansidecl.h"
1149 gcc_AC_CHECK_DECLS(times, , ,[
1150 #include "ansidecl.h"
1152 #ifdef HAVE_SYS_TIMES_H
1153 #include <sys/times.h>
1157 # More time-related stuff.
1158 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1159 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1160 #include "ansidecl.h"
1162 #ifdef HAVE_SYS_TIMES_H
1163 #include <sys/times.h>
1165 ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
1166 if test $ac_cv_struct_tms = yes; then
1167 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1168 [Define if <sys/times.h> defines struct tms.])
1171 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1172 # revisit after autoconf 2.50.
1173 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1174 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1175 #include "ansidecl.h"
1177 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
1178 if test $gcc_cv_type_clock_t = yes; then
1179 AC_DEFINE(HAVE_CLOCK_T, 1,
1180 [Define if <time.h> defines clock_t.])
1183 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1184 CFLAGS="$saved_CFLAGS"
1186 gcc_AC_INITFINI_ARRAY
1188 # mkdir takes a single argument on some systems.
1189 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1197 # With Setjmp/Longjmp based exception handling.
1198 AC_ARG_ENABLE(sjlj-exceptions,
1199 [ --enable-sjlj-exceptions
1200 arrange to use setjmp/longjmp exception handling],
1201 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1202 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1203 [Define 0/1 to force the choice for exception handling model.])])
1205 # For platforms with the unwind ABI which includes an unwind library,
1206 # libunwind, we can choose to use the system libunwind.
1207 AC_ARG_WITH(system-libunwind,
1208 [ --with-system-libunwind use installed libunwind])
1210 # --------------------------------------------------------
1211 # Build, host, and target specific configuration fragments
1212 # --------------------------------------------------------
1214 # Collect build-machine-specific information.
1215 . ${srcdir}/config.build
1217 # Collect host-machine-specific information.
1218 . ${srcdir}/config.host
1222 # Collect target-machine-specific information.
1223 . ${srcdir}/config.gcc
1225 extra_objs="${host_extra_objs} ${extra_objs}"
1226 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1228 # Default the target-machine variables that were not explicitly set.
1229 if test x"$tm_file" = x
1230 then tm_file=$cpu_type/$cpu_type.h; fi
1232 if test x"$extra_headers" = x
1233 then extra_headers=; fi
1235 if test x$md_file = x
1236 then md_file=$cpu_type/$cpu_type.md; fi
1238 if test x$out_file = x
1239 then out_file=$cpu_type/$cpu_type.c; fi
1241 if test x"$tmake_file" = x
1242 then tmake_file=$cpu_type/t-$cpu_type
1245 if test x"$dwarf2" = xyes
1246 then tm_file="$tm_file tm-dwarf2.h"
1249 # Say what files are being used for the output code and MD file.
1250 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1251 echo "Using \`$srcdir/config/$md_file' as machine description file."
1253 # If any of the xm_file variables contain nonexistent files, warn
1254 # about them and drop them.
1257 for x in $build_xm_file; do
1258 if test -f $srcdir/config/$x
1260 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1266 for x in $host_xm_file; do
1267 if test -f $srcdir/config/$x
1269 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1275 for x in $xm_file; do
1276 if test -f $srcdir/config/$x
1278 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1284 for f in $tm_file; do
1287 if test $count = ax; then
1288 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1290 echo "Using the following target machine macro files:"
1291 for f in $tm_file; do
1292 echo " $srcdir/config/$f"
1296 if test x$need_64bit_hwint = xyes; then
1297 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1298 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1301 if test x$use_long_long_for_widest_fast_int = xyes; then
1302 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1303 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1304 efficiently supported by the host hardware.])
1308 for f in $host_xm_file; do
1311 if test $count = a; then
1313 elif test $count = ax; then
1314 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1316 echo "Using the following host machine macro files:"
1317 for f in $host_xm_file; do
1318 echo " $srcdir/config/$f"
1321 echo "Using ${out_host_hook_obj} for host machine hooks."
1323 if test "$host_xm_file" != "$build_xm_file"; then
1325 for f in $build_xm_file; do
1328 if test $count = a; then
1330 elif test $count = ax; then
1331 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1333 echo "Using the following build machine macro files:"
1334 for f in $build_xm_file; do
1335 echo " $srcdir/config/$f"
1344 # Check if a valid thread package
1345 case ${enable_threads} in
1348 target_thread_file='single'
1352 target_thread_file='single'
1354 aix | dce | gnat | irix | posix | posix95 | rtems | \
1355 single | solaris | vxworks | win32 )
1356 target_thread_file=${enable_threads}
1359 echo "${enable_threads} is an unknown thread package" 1>&2
1364 if test x${thread_file} = x; then
1365 # No thread file set by target-specific clauses in config.gcc,
1366 # so use file chosen by default logic above
1367 thread_file=${target_thread_file}
1370 # Make gthr-default.h if we have a thread file.
1372 if test $thread_file != single; then
1373 rm -f gthr-default.h
1374 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1375 gthread_flags=-DHAVE_GTHR_DEFAULT
1377 AC_SUBST(gthread_flags)
1384 if test x$enable___cxa_atexit = xyes || \
1385 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1386 if test x$host = x$target; then
1387 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1388 [echo "__cxa_atexit can't be enabled on this target"])
1390 # We can't check for __cxa_atexit when building a cross, so assume
1394 if test x$use_cxa_atexit = xyes; then
1395 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2,
1396 [Define if you want to use __cxa_atexit, rather than atexit, to
1397 register C++ destructors for local statics and global objects.
1398 This is essential for fully standards-compliant handling of
1399 destructors, but requires __cxa_atexit in libc.])
1403 # Look for a file containing extra machine modes.
1404 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1405 extra_modes_file='$(srcdir)'/config/${extra_modes}
1406 AC_SUBST(extra_modes_file)
1407 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1408 [Define to the name of a file containing a list of extra machine modes
1409 for this architecture.])
1412 # Convert extra_options into a form suitable for Makefile use.
1414 for f in $extra_options; do
1415 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1417 AC_SUBST(extra_opt_files)
1419 # auto-host.h is the file containing items generated by autoconf and is
1420 # the first file included by config.h.
1421 # If host=build, it is correct to have bconfig include auto-host.h
1422 # as well. If host!=build, we are in error and need to do more
1423 # work to find out the build config parameters.
1424 if test x$host = x$build
1426 build_auto=auto-host.h
1428 # We create a subdir, then run autoconf in the subdir.
1429 # To prevent recursion we set host and build for the new
1430 # invocation of configure to the build for this invocation
1437 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1438 *) realsrcdir=../${srcdir};;
1440 saved_CFLAGS="${CFLAGS}"
1441 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1442 ${realsrcdir}/configure \
1443 --enable-languages=${enable_languages-all} \
1444 --target=$target_alias --host=$build_alias --build=$build_alias
1445 CFLAGS="${saved_CFLAGS}"
1447 # We just finished tests for the build machine, so rename
1448 # the file auto-build.h in the gcc directory.
1449 mv auto-host.h ../auto-build.h
1452 build_auto=auto-build.h
1454 AC_SUBST(build_subdir)
1456 tm_file="${tm_file} defaults.h"
1457 tm_p_file="${tm_p_file} tm-preds.h"
1458 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1459 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1460 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1461 # put this back in temporarily.
1462 xm_file="auto-host.h ansidecl.h ${xm_file}"
1469 # Compile in configure arguments.
1470 if test -f configargs.h ; then
1471 # Being re-configured.
1472 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1473 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1475 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1478 # Double all backslashes and backslash all quotes to turn
1479 # gcc_config_arguments into a C string.
1480 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1481 $gcc_config_arguments
1483 gcc_config_arguments_str=`cat conftest.out`
1486 cat > configargs.h <<EOF
1487 /* Generated automatically. */
1488 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1489 static const char thread_model[] = "$thread_file";
1491 static const struct {
1492 const char *name, *value;
1493 } configure_default_options[] = $configure_default_options;
1497 # Internationalization
1498 ZW_GNU_GETTEXT_SISTER_DIR
1500 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1501 # -liconv on the link line twice.
1502 case "$LIBINTL" in *$LIBICONV*)
1506 AC_ARG_ENABLE(secureplt,
1507 [ --enable-secureplt enable -msecure-plt by default for PowerPC],
1510 # Windows32 Registry support for specifying GCC installation paths.
1511 AC_ARG_ENABLE(win32-registry,
1512 [ --disable-win32-registry
1513 disable lookup of installation paths in the
1514 Registry on Windows hosts
1515 --enable-win32-registry enable registry lookup (default)
1516 --enable-win32-registry=KEY
1517 use KEY instead of GCC version as the last portion
1518 of the registry key],,)
1521 win32 | pe | cygwin* | mingw32* | uwin*)
1522 if test "x$enable_win32_registry" != xno; then
1523 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1526 if test "x$enable_win32_registry" != xno; then
1527 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1528 [Define to 1 if installation paths should be looked up in the Windows
1529 Registry. Ignored on non-Windows hosts.])
1531 if test "x$enable_win32_registry" != xyes \
1532 && test "x$enable_win32_registry" != x; then
1533 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1534 [Define to be the last component of the Windows registry key under which
1535 to look for installation paths. The full key used will be
1536 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1537 The default is the GCC version number.])
1543 # Get an absolute path to the GCC top-level source directory
1544 holddir=`${PWDCMD-pwd}`
1546 topdir=`${PWDCMD-pwd}`
1549 # Conditionalize the makefile for this host machine.
1551 for f in ${host_xmake_file}
1553 if test -f ${srcdir}/config/$f
1555 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1559 # Conditionalize the makefile for this target machine.
1561 for f in ${tmake_file}
1563 if test -f ${srcdir}/config/$f
1565 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1568 tmake_file="${tmake_file_}"
1570 # If the host doesn't support symlinks, modify CC in
1571 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1572 # Otherwise, we can use "CC=$(CC)".
1576 cc_set_by_configure="\$(CC)"
1577 quoted_cc_set_by_configure="\$(CC)"
1578 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1579 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1582 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1583 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1584 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1585 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1589 # This is a terrible hack which will go away some day.
1590 host_cc_for_libada=${CC}
1591 AC_SUBST(host_cc_for_libada)
1593 out_object_file=`basename $out_file .c`.o
1595 tm_file_list="options.h"
1596 tm_include_list="options.h"
1597 for f in $tm_file; do
1600 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1601 tm_include_list="${tm_include_list} $f"
1604 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1605 tm_include_list="${tm_include_list} config/$f"
1612 for f in $tm_p_file; do
1615 tm_p_file_list="${tm_p_file_list} $f"
1616 tm_p_include_list="${tm_p_include_list} $f"
1619 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1620 tm_p_include_list="${tm_p_include_list} config/$f"
1626 for f in $xm_file; do
1629 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1630 xm_include_list="${xm_include_list} $f"
1633 xm_file_list="${xm_file_list} $f"
1634 xm_include_list="${xm_include_list} $f"
1637 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1638 xm_include_list="${xm_include_list} config/$f"
1644 host_xm_include_list=
1645 for f in $host_xm_file; do
1648 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1649 host_xm_include_list="${host_xm_include_list} $f"
1652 host_xm_file_list="${host_xm_file_list} $f"
1653 host_xm_include_list="${host_xm_include_list} $f"
1656 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1657 host_xm_include_list="${host_xm_include_list} config/$f"
1663 for f in $build_xm_file; do
1666 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1667 build_xm_include_list="${build_xm_include_list} $f"
1669 auto-build.h | auto-host.h )
1670 build_xm_file_list="${build_xm_file_list} $f"
1671 build_xm_include_list="${build_xm_include_list} $f"
1674 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1675 build_xm_include_list="${build_xm_include_list} config/$f"
1680 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1681 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1682 CROSS= AC_SUBST(CROSS)
1683 ALL=all.internal AC_SUBST(ALL)
1684 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1686 if test "x$with_build_sysroot" != x; then
1687 build_system_header_dir=$with_build_sysroot'$(NATIVE_SYSTEM_HEADER_DIR)'
1689 # This value is used, even on a native system, because
1690 # CROSS_SYSTEM_HEADER_DIR is just
1691 # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
1692 build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
1695 if test x$host != x$target
1697 CROSS="-DCROSS_COMPILE"
1699 SYSTEM_HEADER_DIR=$build_system_header_dir
1700 case "$host","$target" in
1701 # Darwin crosses can use the host system's libraries and headers,
1702 # because of the fat library support. Of course, it must be the
1703 # same version of Darwin on both sides. Allow the user to
1704 # just say --target=foo-darwin without a version number to mean
1705 # "the version on this system".
1706 *-*-darwin*,*-*-darwin*)
1707 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1708 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1709 if test $hostos = $targetos -o $targetos = darwin ; then
1711 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1716 i?86-*-*,x86_64-*-* \
1717 | powerpc*-*-*,powerpc64*-*-*)
1718 CROSS="$CROSS -DNATIVE_CROSS" ;;
1720 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1721 SYSTEM_HEADER_DIR=$build_system_header_dir
1724 # If this is a cross-compiler that does not
1725 # have its own set of headers then define
1728 # If this is using newlib, without having the headers available now,
1729 # then define inhibit_libc in LIBGCC2_CFLAGS.
1730 # This prevents libgcc2 from containing any code which requires libc
1733 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1734 test x$with_newlib = xyes ; } &&
1735 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1738 AC_SUBST(inhibit_libc)
1740 # When building gcc with a cross-compiler, we need to adjust things so
1741 # that the generator programs are still built with the native compiler.
1742 # Also, we cannot run fixincludes or fix-header.
1744 # These are the normal (build=host) settings:
1745 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1746 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1747 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1749 # Possibly disable fixproto, on a per-target basis.
1750 case ${use_fixproto} in
1755 STMP_FIXPROTO=stmp-fixproto
1758 AC_SUBST(STMP_FIXPROTO)
1760 # And these apply if build != host, or we are generating coverage data
1761 if test x$build != x$host || test "x$coverage_flags" != x
1763 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1765 if test "x$TARGET_SYSTEM_ROOT" = x; then
1766 if test "x$STMP_FIXPROTO" != x; then
1767 STMP_FIXPROTO=stmp-install-fixproto
1772 # Expand extra_headers to include complete path.
1773 # This substitutes for lots of t-* files.
1775 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1776 for file in ${extra_headers} ; do
1777 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1780 # Define collect2 in Makefile.
1781 case $host_can_use_collect2 in
1783 *) collect2='collect2$(exeext)' ;;
1785 AC_SUBST([collect2])
1787 # Add a definition of USE_COLLECT2 if system wants one.
1788 case $use_collect2 in
1789 no) use_collect2= ;;
1792 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1793 xm_defines="${xm_defines} USE_COLLECT2"
1794 case $host_can_use_collect2 in
1796 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1802 # ---------------------------
1803 # Assembler & linker features
1804 # ---------------------------
1806 # Identify the assembler which will work hand-in-glove with the newly
1807 # built GCC, so that we can examine its features. This is the assembler
1808 # which will be driven by the driver program.
1810 # If build != host, and we aren't building gas in-tree, we identify a
1811 # build->target assembler and hope that it will have the same features
1812 # as the host->target assembler we'll be using.
1813 gcc_cv_gas_major_version=
1814 gcc_cv_gas_minor_version=
1815 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1817 m4_pattern_allow([AS_FOR_TARGET])dnl
1818 AS_VAR_SET_IF(gcc_cv_as,, [
1819 if test -x "$DEFAULT_ASSEMBLER"; then
1820 gcc_cv_as="$DEFAULT_ASSEMBLER"
1821 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1822 && test -f ../gas/Makefile \
1823 && test x$build = x$host; then
1824 gcc_cv_as=../gas/as-new$build_exeext
1825 elif test -x as$build_exeext; then
1826 # Build using assembler in the current directory.
1827 gcc_cv_as=./as$build_exeext
1828 elif test -x $AS_FOR_TARGET; then
1829 gcc_cv_as="$AS_FOR_TARGET"
1831 AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET)
1834 ORIGINAL_AS_FOR_TARGET=$gcc_cv_as
1835 AC_SUBST(ORIGINAL_AS_FOR_TARGET)
1837 AC_MSG_CHECKING(what assembler to use)
1838 if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then
1839 # Single tree build which includes gas. We want to prefer it
1840 # over whatever linker top-level may have detected, since
1841 # we'll use what we're building after installation anyway.
1842 AC_MSG_RESULT(newly built gas)
1844 _gcc_COMPUTE_GAS_VERSION
1845 in_tree_gas_is_elf=no
1846 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1847 || (grep 'obj_format = multi' ../gas/Makefile \
1848 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1850 in_tree_gas_is_elf=yes
1853 AC_MSG_RESULT($gcc_cv_as)
1857 # Identify the linker which will work hand-in-glove with the newly
1858 # built GCC, so that we can examine its features. This is the linker
1859 # which will be driven by the driver program.
1861 # If build != host, and we aren't building gas in-tree, we identify a
1862 # build->target linker and hope that it will have the same features
1863 # as the host->target linker we'll be using.
1864 gcc_cv_gld_major_version=
1865 gcc_cv_gld_minor_version=
1866 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1867 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1869 AS_VAR_SET_IF(gcc_cv_ld,, [
1870 if test -x "$DEFAULT_LINKER"; then
1871 gcc_cv_ld="$DEFAULT_LINKER"
1872 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1873 && test -f ../ld/Makefile \
1874 && test x$build = x$host; then
1875 gcc_cv_ld=../ld/ld-new$build_exeext
1876 elif test -x collect-ld$build_exeext; then
1877 # Build using linker in the current directory.
1878 gcc_cv_ld=./collect-ld$build_exeext
1879 elif test -x $LD_FOR_TARGET; then
1880 gcc_cv_ld="$LD_FOR_TARGET"
1882 AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
1885 ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
1886 AC_SUBST(ORIGINAL_LD_FOR_TARGET)
1888 AC_MSG_CHECKING(what linker to use)
1889 if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then
1890 # Single tree build which includes ld. We want to prefer it
1891 # over whatever linker top-level may have detected, since
1892 # we'll use what we're building after installation anyway.
1893 AC_MSG_RESULT(newly built ld)
1895 in_tree_ld_is_elf=no
1896 if (grep 'EMUL = .*elf' ../ld/Makefile \
1897 || grep 'EMUL = .*linux' ../ld/Makefile \
1898 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1899 in_tree_ld_is_elf=yes
1901 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
1904 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1905 if test x$gcc_cv_gld_version != x; then
1909 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1910 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1913 AC_MSG_RESULT($gcc_cv_ld)
1917 # Figure out what nm we will be using.
1918 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1919 AS_VAR_SET_IF(gcc_cv_nm,, [
1920 if test -f $gcc_cv_binutils_srcdir/configure.in \
1921 && test -f ../binutils/Makefile \
1922 && test x$build = x$host; then
1923 gcc_cv_nm=../binutils/nm-new$build_exeext
1924 elif test -x nm$build_exeext; then
1925 gcc_cv_nm=./nm$build_exeext
1926 elif test -x $NM_FOR_TARGET; then
1927 gcc_cv_nm="$NM_FOR_TARGET"
1929 AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET)
1932 AC_MSG_CHECKING(what nm to use)
1933 if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then
1934 # Single tree build which includes binutils.
1935 AC_MSG_RESULT(newly built nm)
1938 AC_MSG_RESULT($gcc_cv_nm)
1942 ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm
1943 AC_SUBST(ORIGINAL_NM_FOR_TARGET)
1945 # Figure out what objdump we will be using.
1946 AS_VAR_SET_IF(gcc_cv_objdump,, [
1947 if test -f $gcc_cv_binutils_srcdir/configure.in \
1948 && test -f ../binutils/Makefile \
1949 && test x$build = x$host; then
1950 # Single tree build which includes binutils.
1951 gcc_cv_objdump=../binutils/objdump$build_exeext
1952 elif test -x objdump$build_exeext; then
1953 gcc_cv_objdump=./objdump$build_exeext
1954 elif test -x $OBJDUMP_FOR_TARGET; then
1955 gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
1957 AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
1960 AC_MSG_CHECKING(what objdump to use)
1961 if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then
1962 # Single tree build which includes binutils.
1963 AC_MSG_RESULT(newly built objdump)
1964 elif test x$gcc_cv_objdump = x; then
1965 AC_MSG_RESULT(not found)
1967 AC_MSG_RESULT($gcc_cv_objdump)
1970 # Figure out what assembler alignment features are present.
1971 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1975 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1976 [Define if your assembler supports .balign and .p2align.])])
1978 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1981 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1982 [Define if your assembler supports specifying the maximum number
1983 of bytes to skip when using the GAS .p2align command.])])
1985 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1987 [conftest_label1: .word 0
1989 conftest_label2: .word 0
1991 [if test x$gcc_cv_nm != x; then
1992 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1993 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1994 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1996 else gcc_cv_as_subsection_m1=yes
1998 rm -f conftest.nm1 conftest.nm2
2000 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2001 [Define if your assembler supports .subsection and .subsection -1 starts
2002 emitting at the beginning of your section.])])
2004 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2007 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2009 gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,
2011 [ .weakref foobar, barfnot],,
2012 [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])])
2014 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2017 .NSUBSPA $CODE$,COMDAT],,
2018 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2020 # .hidden needs to be supported in both the assembler and the linker,
2021 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2022 # This is irritatingly difficult to feature test for; we have to check the
2023 # date string after the version number. If we've got an in-tree
2024 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2026 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2027 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2032 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2033 [if test $in_tree_ld = yes ; then
2035 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2036 && test $in_tree_ld_is_elf = yes; then
2037 gcc_cv_ld_hidden=yes
2040 gcc_cv_ld_hidden=yes
2041 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2042 if echo "$ld_ver" | grep GNU > /dev/null; then
2044 ld_vers=`echo $ld_ver | sed -n \
2045 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2046 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2047 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2048 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2049 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2050 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2051 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2052 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2053 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2054 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2055 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2056 if test 0"$ld_date" -lt 20020404; then
2057 if test -n "$ld_date"; then
2058 # If there was date string, but was earlier than 2002-04-04, fail
2060 elif test -z "$ld_vers"; then
2061 # If there was no date string nor ld version number, something is wrong
2064 test -z "$ld_vers_patch" && ld_vers_patch=0
2065 if test "$ld_vers_major" -lt 2; then
2067 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2068 gcc_cv_ld_hidden="no"
2069 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2077 hppa64*-*-hpux* | ia64*-*-hpux*)
2078 gcc_cv_ld_hidden=yes
2086 libgcc_visibility=no
2087 AC_SUBST(libgcc_visibility)
2088 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2089 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2090 libgcc_visibility=yes
2091 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2092 [Define if your assembler and linker support .hidden.])
2095 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2096 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2104 [# GAS versions before 2.11 do not support uleb128,
2105 # despite appearing to.
2106 # ??? There exists an elf-specific test that will crash
2107 # the assembler. Perhaps it's better to figure out whether
2108 # arbitrary sections are supported and try the test.
2109 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2110 if echo "$as_ver" | grep GNU > /dev/null; then
2112 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2113 as_major=`echo $as_ver | sed 's/\..*//'`
2114 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2116 if test $as_major -eq 2 && test $as_minor -lt 11
2118 else gcc_cv_as_leb128=yes
2121 [AC_DEFINE(HAVE_AS_LEB128, 1,
2122 [Define if your assembler supports .sleb128 and .uleb128.])])
2124 # GAS versions up to and including 2.11.0 may mis-optimize
2126 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2134 .section .eh_frame,"aw",@progbits
2136 .4byte .LECIE1-.LSCIE1
2150 .4byte .LEFDE1-.LASFDE1
2152 .4byte .LASFDE1-__FRAME_BEGIN__
2160 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2161 cat > conftest.lit <<EOF
2162 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2163 0010 01000000 12000000 18000000 00000000 ................
2164 0020 08000000 04080000 0044 .........D @&t@
2166 cat > conftest.big <<EOF
2167 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2168 0010 00000001 00000012 00000018 00000000 ................
2169 0020 00000008 04000000 0844 .........D @&t@
2171 # If the assembler didn't choke, and we can objdump,
2172 # and we got the correct data, then succeed.
2173 if test x$gcc_cv_objdump != x \
2174 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2175 | tail -3 > conftest.got \
2176 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2177 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2179 gcc_cv_as_eh_frame=yes
2180 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2181 gcc_cv_as_eh_frame=buggy
2183 # Uh oh, what do we do now?
2184 gcc_cv_as_eh_frame=no
2187 if test $gcc_cv_as_eh_frame = buggy; then
2188 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2189 [Define if your assembler mis-optimizes .eh_frame data.])
2192 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2193 [elf,2,12,0], [--fatal-warnings],
2194 [.section .rodata.str, "aMS", @progbits, 1])
2195 if test $gcc_cv_as_shf_merge = no; then
2196 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2197 [elf,2,12,0], [--fatal-warnings],
2198 [.section .rodata.str, "aMS", %progbits, 1])
2200 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2201 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2202 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2204 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2205 [elf,2,16,0], [--fatal-warnings],
2206 [.section .text,"axG",@progbits,.foo,comdat])
2207 if test $gcc_cv_as_comdat_group = yes; then
2208 gcc_cv_as_comdat_group_percent=no
2210 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2211 [elf,2,16,0], [--fatal-warnings],
2212 [.section .text,"axG",%progbits,.foo,comdat])
2214 if test $in_tree_ld != yes && test x"$ld_vers" != x; then
2216 if test 0"$ld_date" -lt 20050308; then
2217 if test -n "$ld_date"; then
2218 # If there was date string, but was earlier than 2005-03-08, fail
2220 elif test "$ld_vers_major" -lt 2; then
2222 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2227 # assume linkers other than GNU ld don't support COMDAT group
2230 if test $comdat_group = no; then
2231 gcc_cv_as_comdat_group=no
2232 gcc_cv_as_comdat_group_percent=no
2234 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
2235 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2236 [Define 0/1 if your assembler and linker support COMDAT groups.])
2238 # Thread-local storage - the check is heavily parametrized.
2247 .section ".tdata","awT",@progbits
2250 ldq $27,__tls_get_addr($29) !literal!1
2251 lda $16,foo($29) !tlsgd!1
2252 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2253 ldq $27,__tls_get_addr($29) !literal!2
2254 lda $16,foo($29) !tlsldm!2
2255 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2256 ldq $1,foo($29) !gotdtprel
2257 ldah $2,foo($29) !dtprelhi
2258 lda $3,foo($2) !dtprello
2259 lda $4,foo($29) !dtprel
2260 ldq $1,foo($29) !gottprel
2261 ldah $2,foo($29) !tprelhi
2262 lda $3,foo($2) !tprello
2263 lda $4,foo($29) !tprel'
2266 tls_as_opt=--fatal-warnings
2270 .section ".tdata","awT",@progbits
2282 .section ".tdata","awT",@progbits
2286 addil LT%foo-$tls_gdidx$,gp
2287 ldo RT%foo-$tls_gdidx$(%r1),%arg0
2290 addil LT%foo-$tls_ldidx$,gp
2292 ldo RT%foo-$tls_ldidx$(%r1),%arg0
2293 addil LR%foo-$tls_dtpoff$,%ret0
2294 ldo RR%foo-$tls_dtpoff$(%r1),%t1
2296 addil LT%foo-$tls_ieoff$,gp
2297 ldw RT%foo-$tls_ieoff$(%r1),%t2
2300 addil LR%foo-$tls_leoff$,%t1
2301 ldo RR%foo-$tls_leoff$(%r1),%t2'
2304 tls_as_opt=--fatal-warnings
2308 .section ".tdata","awT",%progbits
2321 .section ".tdata","awT",@progbits
2325 leal foo@TLSGD(,%ebx,1), %eax
2326 leal foo@TLSLDM(%ebx), %eax
2327 leal foo@DTPOFF(%eax), %edx
2328 movl foo@GOTTPOFF(%ebx), %eax
2329 subl foo@GOTTPOFF(%ebx), %eax
2330 addl foo@GOTNTPOFF(%ebx), %eax
2331 movl foo@INDNTPOFF, %eax
2332 movl $foo@TPOFF, %eax
2333 subl $foo@TPOFF, %eax
2334 leal foo@NTPOFF(%ecx), %eax'
2337 tls_as_opt=--fatal-warnings
2341 .section ".tdata","awT",@progbits
2345 leaq foo@TLSGD(%rip), %rdi
2346 leaq foo@TLSLD(%rip), %rdi
2347 leaq foo@DTPOFF(%rax), %rdx
2348 movq foo@GOTTPOFF(%rip), %rax
2349 movq $foo@TPOFF, %rax'
2352 tls_as_opt=--fatal-warnings
2356 .section ".tdata","awT",@progbits
2359 addl r16 = @ltoff(@dtpmod(foo#)), gp
2360 addl r17 = @ltoff(@dtprel(foo#)), gp
2361 addl r18 = @ltoff(@tprel(foo#)), gp
2362 addl r19 = @dtprel(foo#), gp
2363 adds r21 = @dtprel(foo#), r13
2364 movl r23 = @dtprel(foo#)
2365 addl r20 = @tprel(foo#), gp
2366 adds r22 = @tprel(foo#), r13
2367 movl r24 = @tprel(foo#)'
2370 tls_as_opt=--fatal-warnings
2374 .section .tdata,"awT",@progbits
2378 addiu $4, $28, %tlsgd(x)
2379 addiu $4, $28, %tlsldm(x)
2380 lui $4, %dtprel_hi(x)
2381 addiu $4, $4, %dtprel_lo(x)
2382 lw $4, %gottprel(x)($28)
2383 lui $4, %tprel_hi(x)
2384 addiu $4, $4, %tprel_lo(x)'
2387 tls_as_opt='-32 --fatal-warnings'
2391 .section ".tdata","awT",@progbits
2399 addi 3,31,ld0@got@tlsgd
2401 addi 3,31,x1@got@tlsld
2404 addis 9,3,x2@dtprel@ha
2405 addi 9,9,x2@dtprel@l
2406 lwz 9,x3@got@tprel(31)
2409 addis 9,2,x2@tprel@ha
2410 addi 9,9,x2@tprel@l'
2413 tls_as_opt="-a32 --fatal-warnings"
2417 .section ".tdata","awT",@progbits
2425 addi 3,2,ld0@got@tlsgd
2431 addi 3,2,x1@got@tlsld
2437 addis 9,3,x2@dtprel@ha
2438 addi 9,9,x2@dtprel@l
2441 ld 9,x3@got@dtprel(2)
2447 tls_as_opt="-a64 --fatal-warnings"
2451 .section ".tdata","awT",@progbits
2460 l %r1,foo@GOTNTPOFF(%r12)
2461 l %r1,0(%r1):tls_load:foo
2462 bas %r14,0(%r1,%r13):tls_gdcall:foo
2463 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2466 tls_as_opt="-m31 --fatal-warnings"
2470 .section ".tdata","awT",@progbits
2478 lg %r1,foo@GOTNTPOFF(%r12)
2479 larl %r1,foo@INDNTPOFF
2480 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2481 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2484 tls_as_opt="-m64 -Aesame --fatal-warnings"
2486 sh-*-* | sh[34]-*-*)
2488 .section ".tdata","awT",@progbits
2498 tls_as_opt=--fatal-warnings
2502 sparc*-sun-solaris2.[56789]*)
2503 # TLS was introduced in the Solaris 9 4/04 release but
2504 # we do not enable it by default on Solaris 9 either.
2505 if test "x$enable_tls" = xyes ; then
2511 sparc*-sun-solaris2.*)
2518 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2520 .section ".tdata",#alloc,#write,#tls
2523 sethi %tgd_hi22(foo), %o0
2524 add %o0, %tgd_lo10(foo), %o1
2525 add %l7, %o1, %o0, %tgd_add(foo)
2526 call __tls_get_addr, %tgd_call(foo)
2527 sethi %tldm_hi22(foo), %l1
2528 add %l1, %tldm_lo10(foo), %l2
2529 add %l7, %l2, %o0, %tldm_add(foo)
2530 call __tls_get_addr, %tldm_call(foo)
2531 sethi %tldo_hix22(foo), %l3
2532 xor %l3, %tldo_lox10(foo), %l4
2533 add %o0, %l4, %l5, %tldo_add(foo)
2534 sethi %tie_hi22(foo), %o3
2535 add %o3, %tie_lo10(foo), %o3
2536 ld [%l7 + %o3], %o2, %tie_ld(foo)
2537 add %g7, %o2, %o4, %tie_add(foo)
2538 sethi %tle_hix22(foo), %l1
2539 xor %l1, %tle_lox10(foo), %o5
2540 ld [%g7 + %o5], %o1'
2545 .section ".tdata","awT",@progbits
2548 sethi %tgd_hi22(foo), %o0
2549 add %o0, %tgd_lo10(foo), %o1
2550 add %l7, %o1, %o0, %tgd_add(foo)
2551 call __tls_get_addr, %tgd_call(foo)
2552 sethi %tldm_hi22(foo), %l1
2553 add %l1, %tldm_lo10(foo), %l2
2554 add %l7, %l2, %o0, %tldm_add(foo)
2555 call __tls_get_addr, %tldm_call(foo)
2556 sethi %tldo_hix22(foo), %l3
2557 xor %l3, %tldo_lox10(foo), %l4
2558 add %o0, %l4, %l5, %tldo_add(foo)
2559 sethi %tie_hi22(foo), %o3
2560 add %o3, %tie_lo10(foo), %o3
2561 ld [%l7 + %o3], %o2, %tie_ld(foo)
2562 add %g7, %o2, %o4, %tie_add(foo)
2563 sethi %tle_hix22(foo), %l1
2564 xor %l1, %tle_lox10(foo), %o5
2565 ld [%g7 + %o5], %o1'
2568 tls_as_opt="-32 --fatal-warnings"
2574 if test "x$enable_tls" = xno ; then
2575 : # TLS explicitly disabled.
2576 elif test "x$enable_tls" = xyes ; then
2577 set_have_as_tls=yes # TLS explicitly enabled.
2578 elif test -z "$tls_first_major"; then
2579 : # If we don't have a check, assume no support.
2581 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2582 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2583 [set_have_as_tls=yes])
2585 if test $set_have_as_tls = yes ; then
2586 AC_DEFINE(HAVE_AS_TLS, 1,
2587 [Define if your assembler supports thread-local storage.])
2590 # Target-specific assembler checks.
2592 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2593 gcc_cv_ld_static_dynamic=no
2594 if test $in_tree_ld = yes ; then
2595 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2596 gcc_cv_ld_static_dynamic=yes
2598 elif test x$gcc_cv_ld != x; then
2599 # Check if linker supports -Bstatic/-Bdynamic option
2600 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2601 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2602 gcc_cv_ld_static_dynamic=yes
2605 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2606 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2607 [Define if your linker supports -Bstatic/-Bdynamic option.])
2609 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2611 if test x"$demangler_in_ld" = xyes; then
2612 AC_MSG_CHECKING(linker --demangle support)
2613 gcc_cv_ld_demangle=no
2614 if test $in_tree_ld = yes; then
2615 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2616 gcc_cv_ld_demangle=yes
2618 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2619 # Check if the GNU linker supports --demangle option
2620 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2621 gcc_cv_ld_demangle=yes
2624 if test x"$gcc_cv_ld_demangle" = xyes; then
2625 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2626 [Define if your linker supports --demangle option.])
2628 AC_MSG_RESULT($gcc_cv_ld_demangle)
2632 # All TARGET_ABI_OSF targets.
2633 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2634 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2635 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2638 extbl $3, $2, $3 !lituse_bytoff!1
2639 ldq $2, a($29) !literal!1
2640 ldq $4, b($29) !literal!2
2641 ldq_u $3, 0($2) !lituse_base!1
2642 ldq $27, f($29) !literal!5
2643 jsr $26, ($27), f !lituse_jsr!5
2644 ldah $29, 0($26) !gpdisp!3
2645 lda $0, c($29) !gprel
2646 ldah $1, d($29) !gprelhigh
2647 lda $1, d($1) !gprellow
2648 lda $29, 0($29) !gpdisp!3],,
2649 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2650 [Define if your assembler supports explicit relocations.])])
2651 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2652 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2655 ldq $27, a($29) !literal!1
2656 jsr $26, ($27), a !lituse_jsrdirect!1],,
2657 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2658 [Define if your assembler supports the lituse_jsrdirect relocation.])])
2662 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2663 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2664 [-no-mul-bug-abort], [.text],,
2665 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2666 [Define if your assembler supports the -no-mul-bug-abort option.])])
2670 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2671 [.register %g2, #scratch],,
2672 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2673 [Define if your assembler supports .register.])])
2675 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2677 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2678 [Define if your assembler supports -relax option.])])
2680 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2681 gcc_cv_as_sparc_ua_pcrel,,
2689 .uaword %r_disp32(foo)],
2690 [if test x$gcc_cv_ld != x \
2691 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2692 gcc_cv_as_sparc_ua_pcrel=yes
2695 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2696 [Define if your assembler and linker support unaligned PC relative relocs.])
2698 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2699 gcc_cv_as_sparc_ua_pcrel_hidden,,
2704 .uaword %r_disp32(foo)
2705 .byte 0x32, 0x33, 0x34
2710 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2711 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2712 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2713 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2714 if $gcc_cv_objdump -R conftest 2> /dev/null \
2715 | grep 'DISP32' > /dev/null 2>&1; then
2718 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2722 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2723 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2724 ]) # unaligned pcrel relocs
2726 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2727 gcc_cv_as_sparc_offsetable_lo10,,
2730 or %g1, %lo(ab) + 12, %g1
2731 or %g1, %lo(ab + 12), %g1],
2732 [if test x$gcc_cv_objdump != x \
2733 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2734 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2735 gcc_cv_as_sparc_offsetable_lo10=yes
2737 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2738 [Define if your assembler supports offsetable %lo().])])
2742 i[34567]86-*-* | x86_64-*-*)
2745 cygwin* | pe | mingw32*)
2746 # Used for DWARF 2 in PE
2747 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2748 gcc_cv_as_ix86_pe_secrel32,
2754 [if test x$gcc_cv_ld != x \
2755 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2756 gcc_cv_as_ix86_pe_secrel32=yes
2759 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2760 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2764 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2765 gcc_cv_as_ix86_filds_fists,
2766 [2,9,0],, [filds mem; fists mem],,
2767 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2768 [Define if your assembler uses the new HImode fild and fist notation.])])
2770 gcc_GAS_CHECK_FEATURE([cmov syntax],
2771 gcc_cv_as_ix86_cmov_sun_syntax,,,
2772 [cmovl.l %edx, %eax],,
2773 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2774 [Define if your assembler supports the Sun syntax for cmov.])])
2776 # This one is used unconditionally by i386.[ch]; it is to be defined
2777 # to 1 if the feature is present, 0 otherwise.
2778 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2779 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2785 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2786 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2787 [Define true if the assembler supports '.long foo@GOTOFF'.])
2791 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2792 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2794 addl r15 = @ltoffx(x#), gp
2796 ld8.mov r16 = [[r15]], x#],,
2797 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2798 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2804 *-*-aix*) conftest_s=' .machine "pwr5"
2808 gcc_GAS_CHECK_FEATURE([.machine directive support],
2809 gcc_cv_as_machine_directive,,,
2810 [ .machine ppc7400])
2811 if test x$gcc_cv_as_machine_directive != xyes; then
2812 echo "*** This target requires an assembler supporting \".machine\"" >&2
2813 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2814 test x$build = x$target && exit 1
2818 *) conftest_s=' .machine power4
2823 gcc_GAS_CHECK_FEATURE([mfcr field support],
2824 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2826 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2827 [Define if your assembler supports mfcr field.])])
2830 *-*-aix*) conftest_s=' .machine "pwr5"
2833 *) conftest_s=' .machine power5
2838 gcc_GAS_CHECK_FEATURE([popcntb support],
2839 gcc_cv_as_powerpc_popcntb, [2,17,0],,
2841 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
2842 [Define if your assembler supports popcntb field.])])
2845 *-*-aix*) conftest_s=' .machine "pwr5x"
2848 *) conftest_s=' .machine power5
2853 gcc_GAS_CHECK_FEATURE([fp round support],
2854 gcc_cv_as_powerpc_fprnd, [2,17,0],,
2856 [AC_DEFINE(HAVE_AS_FPRND, 1,
2857 [Define if your assembler supports fprnd.])])
2860 *-*-aix*) conftest_s=' .csect .text[[PR]]
2862 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
2866 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
2867 *) conftest_s=' .text
2869 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
2872 gcc_GAS_CHECK_FEATURE([rel16 relocs],
2873 gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
2875 [AC_DEFINE(HAVE_AS_REL16, 1,
2876 [Define if your assembler supports R_PPC_REL16 relocs.])])
2880 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2881 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2882 [ lw $4,%gp_rel(foo)($4)],,
2883 [if test x$target_cpu_default = x
2884 then target_cpu_default=MASK_EXPLICIT_RELOCS
2885 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2890 # Mips and HP-UX need the GNU assembler.
2891 # Linux on IA64 might be able to use the Intel assembler.
2894 mips*-*-* | *-*-hpux* )
2895 if test x$gas_flag = xyes \
2896 || test x"$host" != x"$build" \
2897 || test ! -x "$gcc_cv_as" \
2898 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2901 echo "*** This configuration requires the GNU assembler" >&2
2907 # ??? Not all targets support dwarf2 debug_line, even within a version
2908 # of gas. Moreover, we need to emit a valid instruction to trigger any
2909 # info to the output file. So, as supported targets are added to gas 2.11,
2910 # add some instruction here to (also) show we expect this might work.
2911 # ??? Once 2.11 is released, probably need to add first known working
2912 # version to the per-target configury.
2914 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2915 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2916 | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-*)
2919 ia64*-*-* | s390*-*-*)
2926 if test x"$insn" != x; then
2928 .file 1 \"conftest.s\"
2931 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2932 gcc_cv_as_dwarf2_debug_line,
2933 [elf,2,11,0],, [$conftest_s],
2934 [if test x$gcc_cv_objdump != x \
2935 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2936 | grep debug_line > /dev/null 2>&1; then
2937 gcc_cv_as_dwarf2_debug_line=yes
2940 # The .debug_line file table must be in the exact order that
2941 # we specified the files, since these indices are also used
2942 # by DW_AT_decl_file. Approximate this test by testing if
2943 # the assembler bitches if the same index is assigned twice.
2944 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2945 gcc_cv_as_dwarf2_file_buggy,,,
2949 if test $gcc_cv_as_dwarf2_debug_line = yes \
2950 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2951 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2952 [Define if your assembler supports dwarf2 .file/.loc directives,
2953 and preserves file table indices exactly as given.])
2956 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2957 gcc_cv_as_gdwarf2_flag,
2958 [elf,2,11,0], [--gdwarf2], [$insn],,
2959 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2960 [Define if your assembler supports the --gdwarf2 option.])])
2962 gcc_GAS_CHECK_FEATURE([--gstabs option],
2963 gcc_cv_as_gstabs_flag,
2964 [elf,2,11,0], [--gstabs], [$insn],
2965 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2966 # and warns about it, but still exits successfully. So check for
2968 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2970 else gcc_cv_as_gstabs_flag=yes
2972 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2973 [Define if your assembler supports the --gstabs option.])])
2976 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2977 gcc_cv_ld_ro_rw_mix=unknown
2978 if test $in_tree_ld = yes ; then
2979 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2980 && test $in_tree_ld_is_elf = yes; then
2981 gcc_cv_ld_ro_rw_mix=read-write
2983 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2984 echo '.section myfoosect, "a"' > conftest1.s
2985 echo '.section myfoosect, "aw"' > conftest2.s
2986 echo '.byte 1' >> conftest2.s
2987 echo '.section myfoosect, "a"' > conftest3.s
2988 echo '.byte 0' >> conftest3.s
2989 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2990 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2991 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2992 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2993 conftest2.o conftest3.o > /dev/null 2>&1; then
2994 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2995 | sed -e '/myfoosect/!d' -e N`
2996 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2997 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2998 gcc_cv_ld_ro_rw_mix=read-only
3000 gcc_cv_ld_ro_rw_mix=read-write
3005 rm -f conftest.* conftest[123].*
3008 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
3009 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
3010 [Define if your linker links a mix of read-only
3011 and read-write sections into a read-write section.])
3013 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
3015 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
3016 gcc_cv_ld_eh_frame_hdr=no
3017 if test $in_tree_ld = yes ; then
3018 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
3019 && test $in_tree_ld_is_elf = yes; then
3020 gcc_cv_ld_eh_frame_hdr=yes
3022 elif test x$gcc_cv_ld != x; then
3023 # Check if linker supports --eh-frame-hdr option
3024 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
3025 gcc_cv_ld_eh_frame_hdr=yes
3028 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
3029 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
3030 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
3031 [Define if your linker supports --eh-frame-hdr option.])
3033 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
3035 AC_MSG_CHECKING(linker position independent executable support)
3037 if test $in_tree_ld = yes ; then
3038 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
3039 && test $in_tree_ld_is_elf = yes; then
3042 elif test x$gcc_cv_ld != x; then
3043 # Check if linker supports -pie option
3044 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
3048 if test x"$gcc_cv_ld_pie" = xyes; then
3049 AC_DEFINE(HAVE_LD_PIE, 1,
3050 [Define if your linker supports -pie option.])
3052 AC_MSG_RESULT($gcc_cv_ld_pie)
3058 AC_CACHE_CHECK(linker --as-needed support,
3059 gcc_cv_ld_as_needed,
3060 [gcc_cv_ld_as_needed=no
3061 if test $in_tree_ld = yes ; then
3062 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
3063 && test $in_tree_ld_is_elf = yes; then
3064 gcc_cv_ld_as_needed=yes
3066 elif test x$gcc_cv_ld != x; then
3067 # Check if linker supports --as-needed and --no-as-needed options
3068 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
3069 gcc_cv_ld_as_needed=yes
3073 if test x"$gcc_cv_ld_as_needed" = xyes; then
3074 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
3075 [Define if your linker supports --as-needed and --no-as-needed options.])
3078 case "$target:$tm_file" in
3079 powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
3080 AC_CACHE_CHECK(linker support for omitting dot symbols,
3081 gcc_cv_ld_no_dot_syms,
3082 [gcc_cv_ld_no_dot_syms=no
3083 if test $in_tree_ld = yes ; then
3084 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
3085 gcc_cv_ld_no_dot_syms=yes
3087 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
3088 cat > conftest1.s <<EOF
3092 cat > conftest2.s <<EOF
3093 .section ".opd","aw"
3098 .quad .LEfoo,.TOC.@tocbase,0
3104 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
3105 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
3106 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
3107 gcc_cv_ld_no_dot_syms=yes
3109 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3112 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3113 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3114 [Define if your PowerPC64 linker only needs function descriptor syms.])
3119 AC_CACHE_CHECK(linker --sysroot support,
3121 [gcc_cv_ld_sysroot=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 ; then
3124 gcc_cv_ld_sysroot=yes
3126 elif test x$gcc_cv_ld != x; then
3127 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3128 gcc_cv_ld_sysroot=yes
3131 if test x"$gcc_cv_ld_sysroot" = xyes; then
3132 AC_DEFINE(HAVE_LD_SYSROOT, 1,
3133 [Define if your linker supports --sysroot.])
3136 if test x$with_sysroot = x && test x$host = x$target \
3137 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3138 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3139 [Define to PREFIX/include if cpp should also search that directory.])
3142 # Test for stack protector support in target C library.
3145 AC_CACHE_CHECK(__stack_chk_fail in target GNU C library,
3146 gcc_cv_libc_provides_ssp,
3147 [gcc_cv_libc_provides_ssp=no
3148 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3149 if test "x$with_sysroot" = x; then
3150 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3151 elif test "x$with_sysroot" = xyes; then
3152 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3154 glibc_header_dir="${with_sysroot}/usr/include"
3157 glibc_header_dir=/usr/include
3159 # glibc 2.4 and later provides __stack_chk_fail and
3160 # either __stack_chk_guard, or TLS access to stack guard canary.
3161 if test -f $glibc_header_dir/features.h \
3162 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
3163 $glibc_header_dir/features.h > /dev/null; then
3164 if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
3165 $glibc_header_dir/features.h > /dev/null; then
3166 gcc_cv_libc_provides_ssp=yes
3167 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
3168 $glibc_header_dir/features.h > /dev/null \
3169 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
3170 $glibc_header_dir/features.h > /dev/null; then
3171 gcc_cv_libc_provides_ssp=yes
3174 *) gcc_cv_libc_provides_ssp=no ;;
3176 if test x$gcc_cv_libc_provides_ssp = xyes; then
3177 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
3178 [Define if your target C library provides stack protector support])
3181 # Check if TFmode long double should be used by default or not.
3182 # Some glibc targets used DFmode long double, but with glibc 2.4
3183 # and later they can use TFmode.
3185 powerpc*-*-*gnu* | \
3189 AC_ARG_WITH(long-double-128,
3190 [ --with-long-double-128 Use 128-bit long double by default.],
3191 gcc_cv_target_ldbl128="$with_long_double_128",
3192 [gcc_cv_target_ldbl128=no
3193 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3194 if test "x$with_sysroot" = x; then
3195 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3196 elif test "x$with_sysroot" = xyes; then
3197 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3199 glibc_header_dir="${with_sysroot}/usr/include"
3202 glibc_header_dir=/usr/include
3204 grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \
3205 $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \
3206 && gcc_cv_target_ldbl128=yes])
3209 if test x$gcc_cv_target_ldbl128 = xyes; then
3210 AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1,
3211 [Define if TFmode long double should be the default])
3214 # Find out what GC implementation we want, or may, use.
3216 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3224 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3227 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3232 echo "Using $GGC for garbage collection."
3234 # Use the system's zlib library.
3236 zlibinc="-I\$(srcdir)/../zlib"
3237 AC_ARG_WITH(system-zlib,
3238 [ --with-system-zlib use installed libz],
3245 dnl Very limited version of automake's enable-maintainer-mode
3247 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3248 dnl maintainer-mode is disabled by default
3249 AC_ARG_ENABLE(maintainer-mode,
3250 [ --enable-maintainer-mode
3251 enable make rules and dependencies not useful
3252 (and sometimes confusing) to the casual installer],
3253 maintainer_mode=$enableval,
3256 AC_MSG_RESULT($maintainer_mode)
3258 if test "$maintainer_mode" = "yes"; then
3269 # Make empty files to contain the specs and options for each language.
3270 # Then add #include lines to for a compiler that has specs and/or options.
3276 # These (without "all_") are set in each config-lang.in.
3277 # `language' must be a single word so is spelled singularly.
3282 all_outputs='Makefile gccbug mklibgcc libada-mk'
3283 # List of language makefile fragments.
3285 # List of language subdirectory makefiles. Deprecated.
3287 # Files for gengtype
3288 all_gtfiles="$target_gtfiles"
3289 # Files for gengtype with language
3290 all_gtfiles_files_langs=
3291 all_gtfiles_files_files=
3293 # These are the languages that are set in --enable-languages,
3294 # and are available in the GCC tree.
3295 all_selected_languages=
3297 # Add the language fragments.
3298 # Languages are added via two mechanisms. Some information must be
3299 # recorded in makefile variables, these are defined in config-lang.in.
3300 # We accumulate them and plug them into the main Makefile.
3301 # The other mechanism is a set of hooks for each of the main targets
3302 # like `clean', `install', etc.
3304 language_hooks="Make-hooks"
3306 for lang in ${srcdir}/*/config-lang.in
3309 # The odd quoting in the next line works around
3310 # an apparent bug in bash 1.12 on linux.
3312 ${srcdir}/[*]/config-lang.in)
3315 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
3316 if test "x$lang_alias" = x
3318 echo "$lang doesn't set \$language." 1>&2
3321 subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
3322 subdirs="$subdirs $subdir"
3323 case ",$enable_languages," in
3325 all_selected_languages="$all_selected_languages $lang_alias"
3326 if test -f $srcdir/$subdir/lang-specs.h; then
3327 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3333 if test -f $srcdir/$subdir/lang.opt; then
3334 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3336 if test -f $srcdir/$subdir/$subdir-tree.def; then
3337 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3346 . ${srcdir}/$subdir/config-lang.in
3347 if test "x$language" = x
3349 echo "${srcdir}/$subdir/config-lang.in doesn't set \$language." 1>&2
3352 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$subdir/Make-lang.in"
3353 if test -f ${srcdir}/$subdir/Makefile.in
3354 then all_lang_makefiles="$subdir/Makefile"
3356 all_languages="$all_languages $language"
3357 if test "x$boot_language" = xyes
3359 all_boot_languages="$all_boot_languages $language"
3361 all_compilers="$all_compilers $compilers"
3362 all_stagestuff="$all_stagestuff $stagestuff"
3363 all_outputs="$all_outputs $outputs"
3364 all_gtfiles="$all_gtfiles $gtfiles"
3367 all_gtfiles_files_langs="$all_gtfiles_files_langs ${subdir} "
3368 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3374 # Pick up gtfiles for c
3377 . ${srcdir}/c-config-lang.in
3378 all_gtfiles="$all_gtfiles $gtfiles"
3381 all_gtfiles_files_langs="$all_gtfiles_files_langs ${subdir} "
3382 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3386 for language in $all_selected_languages
3388 check_languages="$check_languages check-$language"
3391 # We link each language in with a set of hooks, reached indirectly via
3392 # lang.${target}. Only do so for selected languages.
3396 target_list="all.cross start.encap rest.encap tags \
3397 install-common install-man install-info dvi html \
3398 uninstall info man srcextra srcman srcinfo \
3399 mostlyclean clean distclean maintainer-clean \
3400 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3402 for t in $target_list
3405 for lang in $all_selected_languages
3409 echo "lang.$t: $x" >> Make-hooks
3418 echo "dir ." > .gdbinit
3419 echo "dir ${srcdir}" >> .gdbinit
3420 if test x$gdb_needs_out_file_path = xyes
3422 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3424 if test "x$subdirs" != x; then
3427 echo "dir ${srcdir}/$s" >> .gdbinit
3430 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3432 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3433 # absolute path for gcc_tooldir based on inserting the number of up-directory
3434 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3435 # $(libsubdir)/@(unlibsubdir) based path.
3436 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3437 # make and thus we'd get different behavior depending on where we built the
3439 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3440 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3442 changequote(<<, >>)dnl
3443 # An explanation of the sed strings:
3444 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3445 # -e 's|/$||' match a trailing forward slash and eliminates it
3446 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3447 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3449 # (*) Note this pattern overwrites the first character of the string
3450 # with a forward slash if one is not already present. This is not a
3451 # problem because the exact names of the sub-directories concerned is
3452 # unimportant, just the number of them matters.
3454 # The practical upshot of these patterns is like this:
3456 # prefix exec_prefix result
3457 # ------ ----------- ------
3459 # /foo/ /foo/bar ../
3460 # /foo /foo/bar/ ../
3461 # /foo/ /foo/bar/ ../
3462 # /foo /foo/bar/ugg ../../
3465 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3466 changequote([, ])dnl
3468 AC_SUBST(gcc_tooldir)
3471 # Find a directory in which to install a shared libgcc.
3473 AC_ARG_ENABLE(version-specific-runtime-libs,
3474 [ --enable-version-specific-runtime-libs
3475 specify that runtime libraries should be
3476 installed in a compiler-specific directory])
3478 AC_ARG_WITH(slibdir,
3479 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3480 slibdir="$with_slibdir",
3481 if test "${enable_version_specific_runtime_libs+set}" = set; then
3482 slibdir='$(libsubdir)'
3483 elif test "$host" != "$target"; then
3484 slibdir='$(build_tooldir)/lib'
3490 objdir=`${PWDCMD-pwd}`
3493 # Substitute configuration variables
3496 AC_SUBST(all_boot_languages)
3497 AC_SUBST(all_compilers)
3498 AC_SUBST(all_gtfiles)
3499 AC_SUBST(all_gtfiles_files_langs)
3500 AC_SUBST(all_gtfiles_files_files)
3501 AC_SUBST(all_lang_makefrags)
3502 AC_SUBST(all_lang_makefiles)
3503 AC_SUBST(all_languages)
3504 AC_SUBST(all_selected_languages)
3505 AC_SUBST(all_stagestuff)
3506 AC_SUBST(build_exeext)
3507 AC_SUBST(build_install_headers_dir)
3508 AC_SUBST(build_xm_file_list)
3509 AC_SUBST(build_xm_include_list)
3510 AC_SUBST(build_xm_defines)
3511 AC_SUBST(check_languages)
3512 AC_SUBST(cc_set_by_configure)
3513 AC_SUBST(quoted_cc_set_by_configure)
3514 AC_SUBST(cpp_install_dir)
3515 AC_SUBST(xmake_file)
3516 AC_SUBST(tmake_file)
3517 AC_SUBST(extra_gcc_objs)
3518 AC_SUBST(extra_headers_list)
3519 AC_SUBST(extra_objs)
3520 AC_SUBST(extra_parts)
3521 AC_SUBST(extra_passes)
3522 AC_SUBST(extra_programs)
3523 AC_SUBST(float_h_file)
3524 AC_SUBST(gcc_config_arguments)
3525 AC_SUBST(gcc_gxx_include_dir)
3526 AC_SUBST(libstdcxx_incdir)
3527 AC_SUBST(host_exeext)
3528 AC_SUBST(host_xm_file_list)
3529 AC_SUBST(host_xm_include_list)
3530 AC_SUBST(host_xm_defines)
3531 AC_SUBST(out_host_hook_obj)
3533 AC_SUBST(lang_opt_files)
3534 AC_SUBST(lang_specs_files)
3535 AC_SUBST(lang_tree_files)
3536 AC_SUBST(local_prefix)
3538 AC_SUBST(objc_boehm_gc)
3540 AC_SUBST(out_object_file)
3541 AC_SUBST(stage_prefix_set_by_configure)
3542 AC_SUBST(quoted_stage_prefix_set_by_configure)
3543 AC_SUBST(thread_file)
3544 AC_SUBST(tm_file_list)
3545 AC_SUBST(tm_include_list)
3546 AC_SUBST(tm_defines)
3547 AC_SUBST(tm_p_file_list)
3548 AC_SUBST(tm_p_include_list)
3549 AC_SUBST(xm_file_list)
3550 AC_SUBST(xm_include_list)
3551 AC_SUBST(xm_defines)
3552 AC_SUBST(c_target_objs)
3553 AC_SUBST(cxx_target_objs)
3554 AC_SUBST(target_cpu_default)
3556 AC_SUBST_FILE(language_hooks)
3559 if test x${build} = x${host} ; then
3560 if test x${host} = x${target} ; then
3561 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3563 echo "Links are now set up to build a cross-compiler" 1>&2
3564 echo " from ${host} to ${target}." 1>&2
3567 if test x${host} = x${target} ; then
3568 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3569 echo " for ${target}." 1>&2
3571 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3572 echo " from ${host} to ${target}." 1>&2
3576 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3577 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3579 # Configure the subdirectories
3580 # AC_CONFIG_SUBDIRS($subdirs)
3582 # Create the Makefile
3583 # and configure language subdirectories
3584 AC_CONFIG_FILES($all_outputs)
3586 AC_CONFIG_COMMANDS([default],
3588 case ${CONFIG_HEADERS} in
3589 *auto-host.h:config.in*)
3592 # Make sure all the subdirs exist.
3593 for d in $subdirs doc build
3595 test -d $d || mkdir $d
3597 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3598 # bootstrapping and the installation procedure can still use
3599 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3600 # FLAGS_TO_PASS has been modified to solve the problem there.
3601 # This is virtually a duplicate of what happens in configure.lang; we do
3602 # an extra check to make sure this only happens if ln -s can be used.
3605 for d in ${subdirs} ; do
3606 STARTDIR=`${PWDCMD-pwd}`
3608 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3611 $LN_S ../$t $t 2>/dev/null
3618 [subdirs='$subdirs'])