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 for lang in ${srcdir}/*/config-lang.in
824 # The odd quoting in the next line works around
825 # an apparent bug in bash 1.12 on linux.
827 ${srcdir}/[*]/config-lang.in) ;;
829 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
830 if test "x$lang_alias" = x
832 echo "$lang doesn't set \$language." 1>&2
835 case ",$enable_languages," in
837 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
845 # -------------------------
846 # Checks for other programs
847 # -------------------------
851 # Find some useful tools
853 # We need awk to create options.c and options.h.
854 # Bail out if it's missing.
856 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
864 # By default, the Darwin ranlib will not treat common symbols as
865 # definitions when building the archive table of contents. Other
866 # ranlibs do that; pass an option to the Darwin ranlib that makes
867 # it behave similarly.
873 AC_SUBST(ranlib_flags)
877 # See if cmp has --ignore-initial.
878 gcc_AC_PROG_CMP_IGNORE_INITIAL
880 # See if we have the mktemp command.
881 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
883 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
885 # See if makeinfo has been installed and is modern enough
886 # that we can use it.
887 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
888 [GNU texinfo.* \([0-9][0-9.]*\)],
890 if test $gcc_cv_prog_makeinfo_modern = no; then
891 MAKEINFO="$MISSING makeinfo"
893 *** Makeinfo is missing or too old.
894 *** Info documentation will not be built.])
901 # Is pod2man recent enough to regenerate manpages?
902 AC_MSG_CHECKING([for recent Pod::Man])
903 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
905 GENERATED_MANPAGES=generated-manpages
910 AC_SUBST(GENERATED_MANPAGES)
913 dnl Don't use AC_PROG_LEX; we insist on flex.
914 dnl LEXLIB is not useful in gcc.
915 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
918 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
920 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
921 # check for build == host before using them.
924 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
925 && test -d ../binutils ; then
926 NM='$(objdir)/../binutils/nm-new'
928 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
932 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
933 && test -d ../binutils ; then
934 AR='$(objdir)/../binutils/ar'
936 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
940 # --------------------
941 # Checks for C headers
942 # --------------------
944 AC_MSG_CHECKING(for GNU C library)
945 AC_CACHE_VAL(gcc_cv_glibc,
946 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
947 [[#include <features.h>]], [[
948 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
949 #error Not a GNU C library system
953 AC_MSG_RESULT($gcc_cv_glibc)
954 if test $gcc_cv_glibc = yes; then
955 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
958 # Need to reject headers which give warnings, so that the -Werror bootstrap
959 # works later. *sigh* This needs to come before all header checks.
966 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
967 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
968 sys/resource.h sys/param.h sys/times.h sys/stat.h \
969 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
971 # Check for thread headers.
972 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
973 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
975 # These tests can't be done till we know if we have limits.h.
983 # Stage specific cflags for build.
989 stage1_cflags="-Wa,-J"
995 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
996 # sources; use -no-cpp-precomp to get to GNU cpp.
997 # Apple's GCC has bugs in designated initializer handling, so disable
999 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
1002 AC_SUBST(stage1_cflags)
1004 # These libraries may be used by collect2.
1005 # We may need a special search path to get them linked.
1006 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
1008 for libs in '' -lld -lmld \
1009 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
1010 '-L/usr/lib/cmplrs/cc3.11 -lmld'
1013 AC_TRY_LINK_FUNC(ldopen,
1014 [gcc_cv_collect2_libs="$libs"; break])
1017 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
1018 case $gcc_cv_collect2_libs in
1020 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
1022 AC_SUBST(COLLECT2_LIBS)
1024 # When building Ada code on Alpha, we need exc_resume which is usually in
1025 # -lexc. So test for it.
1028 AC_SEARCH_LIBS(exc_resume, exc)
1031 AC_SUBST(GNAT_LIBEXC)
1033 # Some systems put ldexp and frexp in libm instead of libc; assume
1034 # they're both in the same place. jcf-dump needs them.
1037 AC_SEARCH_LIBS(ldexp, m)
1042 # Use <inttypes.h> only if it exists,
1043 # doesn't clash with <sys/types.h>, and declares intmax_t.
1044 AC_MSG_CHECKING(for inttypes.h)
1045 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
1046 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1047 [[#include <sys/types.h>
1048 #include <inttypes.h>]],
1049 [[intmax_t i = -1;]])],
1050 [gcc_cv_header_inttypes_h=yes],
1051 [gcc_cv_header_inttypes_h=no])])
1052 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
1053 if test $gcc_cv_header_inttypes_h = yes; then
1054 AC_DEFINE(HAVE_INTTYPES_H, 1,
1055 [Define if you have a working <inttypes.h> header file.])
1058 dnl Disabled until we have a complete test for buggy enum bitfields.
1059 dnl gcc_AC_C_ENUM_BF_UNSIGNED
1061 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
1062 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
1063 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
1064 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
1065 putchar_unlocked putc_unlocked)
1066 AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
1067 sysconf strsignal getrusage nl_langinfo scandir alphasort \
1068 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
1071 if test x$ac_cv_func_mbstowcs = xyes; then
1072 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
1073 [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
1079 [gcc_cv_func_mbstowcs_works=yes],
1080 [gcc_cv_func_mbstowcs_works=no],
1081 [gcc_cv_func_mbstowcs_works=yes])])
1082 if test x$gcc_cv_func_mbstowcs_works = xyes; then
1083 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1084 [Define this macro if mbstowcs does not crash when its
1085 first argument is NULL.])
1089 AC_CHECK_TYPE(ssize_t, int)
1091 # Try to determine the array type of the second argument of getgroups
1092 # for the target system (int or gid_t).
1094 if test "${target}" = "${build}"; then
1095 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
1098 # This condition may need some tweaking. It should include all
1099 # targets where the array type of the second argument of getgroups
1100 # is int and the type of gid_t is not equivalent to int.
1101 *-*-sunos* | *-*-ultrix*)
1102 TARGET_GETGROUPS_T=int
1105 TARGET_GETGROUPS_T=gid_t
1109 AC_SUBST(TARGET_GETGROUPS_T)
1111 gcc_AC_FUNC_MMAP_BLACKLIST
1115 # Under VMS, vfork works very differently than on Unix. The standard test
1116 # won't work, and it isn't easily adaptable. It makes more sense to
1118 ac_cv_func_vfork_works=yes
1124 # Until we have in-tree GNU iconv:
1126 AC_SUBST(LIBICONV_DEP)
1132 # We will need to find libiberty.h and ansidecl.h
1133 saved_CFLAGS="$CFLAGS"
1134 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1135 gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
1136 strsignal strstr strverscmp \
1137 errno snprintf vsnprintf vasprintf malloc realloc calloc \
1138 free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1139 #include "ansidecl.h"
1140 #include "system.h"])
1142 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1143 #include "ansidecl.h"
1145 #ifdef HAVE_SYS_RESOURCE_H
1146 #include <sys/resource.h>
1150 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1151 #include "ansidecl.h"
1153 #ifdef HAVE_SYS_RESOURCE_H
1154 #include <sys/resource.h>
1156 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
1157 [Define to \`long' if <sys/resource.h> doesn't define.])])
1159 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1160 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1161 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1162 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1163 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1164 #include "ansidecl.h"
1173 gcc_AC_CHECK_DECLS(times, , ,[
1174 #include "ansidecl.h"
1176 #ifdef HAVE_SYS_TIMES_H
1177 #include <sys/times.h>
1181 # More time-related stuff.
1182 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1183 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1184 #include "ansidecl.h"
1186 #ifdef HAVE_SYS_TIMES_H
1187 #include <sys/times.h>
1189 ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
1190 if test $ac_cv_struct_tms = yes; then
1191 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1192 [Define if <sys/times.h> defines struct tms.])
1195 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1196 # revisit after autoconf 2.50.
1197 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1198 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1199 #include "ansidecl.h"
1201 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
1202 if test $gcc_cv_type_clock_t = yes; then
1203 AC_DEFINE(HAVE_CLOCK_T, 1,
1204 [Define if <time.h> defines clock_t.])
1207 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1208 CFLAGS="$saved_CFLAGS"
1210 gcc_AC_INITFINI_ARRAY
1212 # mkdir takes a single argument on some systems.
1213 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1221 # With Setjmp/Longjmp based exception handling.
1222 AC_ARG_ENABLE(sjlj-exceptions,
1223 [ --enable-sjlj-exceptions
1224 arrange to use setjmp/longjmp exception handling],
1225 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1226 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1227 [Define 0/1 to force the choice for exception handling model.])])
1229 # For platforms with the unwind ABI which includes an unwind library,
1230 # libunwind, we can choose to use the system libunwind.
1231 AC_ARG_WITH(system-libunwind,
1232 [ --with-system-libunwind use installed libunwind])
1234 # --------------------------------------------------------
1235 # Build, host, and target specific configuration fragments
1236 # --------------------------------------------------------
1238 # Collect build-machine-specific information.
1239 . ${srcdir}/config.build
1241 # Collect host-machine-specific information.
1242 . ${srcdir}/config.host
1246 # Collect target-machine-specific information.
1247 . ${srcdir}/config.gcc
1249 extra_objs="${host_extra_objs} ${extra_objs}"
1250 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1252 # Default the target-machine variables that were not explicitly set.
1253 if test x"$tm_file" = x
1254 then tm_file=$cpu_type/$cpu_type.h; fi
1256 if test x"$extra_headers" = x
1257 then extra_headers=; fi
1259 if test x$md_file = x
1260 then md_file=$cpu_type/$cpu_type.md; fi
1262 if test x$out_file = x
1263 then out_file=$cpu_type/$cpu_type.c; fi
1265 if test x"$tmake_file" = x
1266 then tmake_file=$cpu_type/t-$cpu_type
1269 if test x"$dwarf2" = xyes
1270 then tm_file="$tm_file tm-dwarf2.h"
1273 # Say what files are being used for the output code and MD file.
1274 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1275 echo "Using \`$srcdir/config/$md_file' as machine description file."
1277 # If any of the xm_file variables contain nonexistent files, warn
1278 # about them and drop them.
1281 for x in $build_xm_file; do
1282 if test -f $srcdir/config/$x
1284 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1290 for x in $host_xm_file; do
1291 if test -f $srcdir/config/$x
1293 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1299 for x in $xm_file; do
1300 if test -f $srcdir/config/$x
1302 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1308 for f in $tm_file; do
1311 if test $count = ax; then
1312 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1314 echo "Using the following target machine macro files:"
1315 for f in $tm_file; do
1316 echo " $srcdir/config/$f"
1320 if test x$need_64bit_hwint = xyes; then
1321 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1322 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1325 if test x$use_long_long_for_widest_fast_int = xyes; then
1326 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1327 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1328 efficiently supported by the host hardware.])
1332 for f in $host_xm_file; do
1335 if test $count = a; then
1337 elif test $count = ax; then
1338 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1340 echo "Using the following host machine macro files:"
1341 for f in $host_xm_file; do
1342 echo " $srcdir/config/$f"
1345 echo "Using ${out_host_hook_obj} for host machine hooks."
1347 if test "$host_xm_file" != "$build_xm_file"; then
1349 for f in $build_xm_file; do
1352 if test $count = a; then
1354 elif test $count = ax; then
1355 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1357 echo "Using the following build machine macro files:"
1358 for f in $build_xm_file; do
1359 echo " $srcdir/config/$f"
1368 # Check if a valid thread package
1369 case ${enable_threads} in
1372 target_thread_file='single'
1376 target_thread_file='single'
1378 aix | dce | gnat | irix | posix | posix95 | rtems | \
1379 single | solaris | vxworks | win32 )
1380 target_thread_file=${enable_threads}
1383 echo "${enable_threads} is an unknown thread package" 1>&2
1388 if test x${thread_file} = x; then
1389 # No thread file set by target-specific clauses in config.gcc,
1390 # so use file chosen by default logic above
1391 thread_file=${target_thread_file}
1394 # Make gthr-default.h if we have a thread file.
1396 if test $thread_file != single; then
1397 rm -f gthr-default.h
1398 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1399 gthread_flags=-DHAVE_GTHR_DEFAULT
1401 AC_SUBST(gthread_flags)
1408 if test x$enable___cxa_atexit = xyes || \
1409 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1410 if test x$host = x$target; then
1411 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1412 [echo "__cxa_atexit can't be enabled on this target"])
1414 # We can't check for __cxa_atexit when building a cross, so assume
1418 if test x$use_cxa_atexit = xyes; then
1419 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1420 [Define if you want to use __cxa_atexit, rather than atexit, to
1421 register C++ destructors for local statics and global objects.
1422 This is essential for fully standards-compliant handling of
1423 destructors, but requires __cxa_atexit in libc.])
1427 # Look for a file containing extra machine modes.
1428 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1429 extra_modes_file='$(srcdir)'/config/${extra_modes}
1430 AC_SUBST(extra_modes_file)
1431 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1432 [Define to the name of a file containing a list of extra machine modes
1433 for this architecture.])
1436 # Convert extra_options into a form suitable for Makefile use.
1438 for f in $extra_options; do
1439 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1441 AC_SUBST(extra_opt_files)
1443 # auto-host.h is the file containing items generated by autoconf and is
1444 # the first file included by config.h.
1445 # If host=build, it is correct to have bconfig include auto-host.h
1446 # as well. If host!=build, we are in error and need to do more
1447 # work to find out the build config parameters.
1448 if test x$host = x$build
1450 build_auto=auto-host.h
1452 # We create a subdir, then run autoconf in the subdir.
1453 # To prevent recursion we set host and build for the new
1454 # invocation of configure to the build for this invocation
1461 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1462 *) realsrcdir=../${srcdir};;
1464 saved_CFLAGS="${CFLAGS}"
1465 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1466 ${realsrcdir}/configure \
1467 --enable-languages=${enable_languages-all} \
1468 --target=$target_alias --host=$build_alias --build=$build_alias
1469 CFLAGS="${saved_CFLAGS}"
1471 # We just finished tests for the build machine, so rename
1472 # the file auto-build.h in the gcc directory.
1473 mv auto-host.h ../auto-build.h
1476 build_auto=auto-build.h
1478 AC_SUBST(build_subdir)
1480 tm_file="${tm_file} defaults.h"
1481 tm_p_file="${tm_p_file} tm-preds.h"
1482 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1483 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1484 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1485 # put this back in temporarily.
1486 xm_file="auto-host.h ansidecl.h ${xm_file}"
1493 # Compile in configure arguments.
1494 if test -f configargs.h ; then
1495 # Being re-configured.
1496 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1497 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1499 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1502 # Double all backslashes and backslash all quotes to turn
1503 # gcc_config_arguments into a C string.
1504 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1505 $gcc_config_arguments
1507 gcc_config_arguments_str=`cat conftest.out`
1510 cat > configargs.h <<EOF
1511 /* Generated automatically. */
1512 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1513 static const char thread_model[] = "$thread_file";
1515 static const struct {
1516 const char *name, *value;
1517 } configure_default_options[] = $configure_default_options;
1521 # Internationalization
1522 ZW_GNU_GETTEXT_SISTER_DIR
1524 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1525 # -liconv on the link line twice.
1526 case "$LIBINTL" in *$LIBICONV*)
1530 AC_ARG_ENABLE(secureplt,
1531 [ --enable-secureplt enable -msecure-plt by default for PowerPC],
1534 # Windows32 Registry support for specifying GCC installation paths.
1535 AC_ARG_ENABLE(win32-registry,
1536 [ --disable-win32-registry
1537 disable lookup of installation paths in the
1538 Registry on Windows hosts
1539 --enable-win32-registry enable registry lookup (default)
1540 --enable-win32-registry=KEY
1541 use KEY instead of GCC version as the last portion
1542 of the registry key],,)
1545 win32 | pe | cygwin* | mingw32* | uwin*)
1546 if test "x$enable_win32_registry" != xno; then
1547 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1550 if test "x$enable_win32_registry" != xno; then
1551 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1552 [Define to 1 if installation paths should be looked up in the Windows
1553 Registry. Ignored on non-Windows hosts.])
1555 if test "x$enable_win32_registry" != xyes \
1556 && test "x$enable_win32_registry" != x; then
1557 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1558 [Define to be the last component of the Windows registry key under which
1559 to look for installation paths. The full key used will be
1560 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1561 The default is the GCC version number.])
1567 # Get an absolute path to the GCC top-level source directory
1568 holddir=`${PWDCMD-pwd}`
1570 topdir=`${PWDCMD-pwd}`
1573 # Conditionalize the makefile for this host machine.
1575 for f in ${host_xmake_file}
1577 if test -f ${srcdir}/config/$f
1579 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1583 # Conditionalize the makefile for this target machine.
1585 for f in ${tmake_file}
1587 if test -f ${srcdir}/config/$f
1589 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1592 tmake_file="${tmake_file_}"
1594 # If the host doesn't support symlinks, modify CC in
1595 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1596 # Otherwise, we can use "CC=$(CC)".
1600 cc_set_by_configure="\$(CC)"
1601 quoted_cc_set_by_configure="\$(CC)"
1602 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1603 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1606 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1607 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1608 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1609 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1613 # This is a terrible hack which will go away some day.
1614 host_cc_for_libada=${CC}
1615 AC_SUBST(host_cc_for_libada)
1617 out_object_file=`basename $out_file .c`.o
1619 tm_file_list="options.h"
1620 tm_include_list="options.h"
1621 for f in $tm_file; do
1624 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1625 tm_include_list="${tm_include_list} $f"
1628 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1629 tm_include_list="${tm_include_list} config/$f"
1636 for f in $tm_p_file; do
1639 tm_p_file_list="${tm_p_file_list} $f"
1640 tm_p_include_list="${tm_p_include_list} $f"
1643 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1644 tm_p_include_list="${tm_p_include_list} config/$f"
1650 for f in $xm_file; do
1653 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1654 xm_include_list="${xm_include_list} $f"
1657 xm_file_list="${xm_file_list} $f"
1658 xm_include_list="${xm_include_list} $f"
1661 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1662 xm_include_list="${xm_include_list} config/$f"
1668 host_xm_include_list=
1669 for f in $host_xm_file; do
1672 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1673 host_xm_include_list="${host_xm_include_list} $f"
1676 host_xm_file_list="${host_xm_file_list} $f"
1677 host_xm_include_list="${host_xm_include_list} $f"
1680 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1681 host_xm_include_list="${host_xm_include_list} config/$f"
1687 for f in $build_xm_file; do
1690 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1691 build_xm_include_list="${build_xm_include_list} $f"
1693 auto-build.h | auto-host.h )
1694 build_xm_file_list="${build_xm_file_list} $f"
1695 build_xm_include_list="${build_xm_include_list} $f"
1698 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1699 build_xm_include_list="${build_xm_include_list} config/$f"
1704 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1705 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1706 CROSS= AC_SUBST(CROSS)
1707 ALL=all.internal AC_SUBST(ALL)
1708 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1710 if test "x$with_build_sysroot" != x; then
1711 build_system_header_dir=$with_build_sysroot'$(NATIVE_SYSTEM_HEADER_DIR)'
1713 # This value is used, even on a native system, because
1714 # CROSS_SYSTEM_HEADER_DIR is just
1715 # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
1716 build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
1719 if test x$host != x$target
1721 CROSS="-DCROSS_COMPILE"
1723 SYSTEM_HEADER_DIR=$build_system_header_dir
1724 case "$host","$target" in
1725 # Darwin crosses can use the host system's libraries and headers,
1726 # because of the fat library support. Of course, it must be the
1727 # same version of Darwin on both sides. Allow the user to
1728 # just say --target=foo-darwin without a version number to mean
1729 # "the version on this system".
1730 *-*-darwin*,*-*-darwin*)
1731 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1732 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1733 if test $hostos = $targetos -o $targetos = darwin ; then
1735 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1740 i?86-*-*,x86_64-*-* \
1741 | powerpc*-*-*,powerpc64*-*-*)
1742 CROSS="$CROSS -DNATIVE_CROSS" ;;
1744 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1745 SYSTEM_HEADER_DIR=$build_system_header_dir
1748 # If this is a cross-compiler that does not
1749 # have its own set of headers then define
1752 # If this is using newlib, without having the headers available now,
1753 # then define inhibit_libc in LIBGCC2_CFLAGS.
1754 # This prevents libgcc2 from containing any code which requires libc
1757 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1758 test x$with_newlib = xyes ; } &&
1759 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1762 AC_SUBST(inhibit_libc)
1764 # When building gcc with a cross-compiler, we need to adjust things so
1765 # that the generator programs are still built with the native compiler.
1766 # Also, we cannot run fixincludes or fix-header.
1768 # These are the normal (build=host) settings:
1769 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1770 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1771 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1773 # Possibly disable fixproto, on a per-target basis.
1774 case ${use_fixproto} in
1779 STMP_FIXPROTO=stmp-fixproto
1782 AC_SUBST(STMP_FIXPROTO)
1784 # And these apply if build != host, or we are generating coverage data
1785 if test x$build != x$host || test "x$coverage_flags" != x
1787 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1789 if test "x$TARGET_SYSTEM_ROOT" = x; then
1790 if test "x$STMP_FIXPROTO" != x; then
1791 STMP_FIXPROTO=stmp-install-fixproto
1796 # Expand extra_headers to include complete path.
1797 # This substitutes for lots of t-* files.
1799 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1800 for file in ${extra_headers} ; do
1801 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1804 # Define collect2 in Makefile.
1805 case $host_can_use_collect2 in
1807 *) collect2='collect2$(exeext)' ;;
1809 AC_SUBST([collect2])
1811 # Add a definition of USE_COLLECT2 if system wants one.
1812 case $use_collect2 in
1813 no) use_collect2= ;;
1816 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1817 xm_defines="${xm_defines} USE_COLLECT2"
1818 case $host_can_use_collect2 in
1820 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1826 # ---------------------------
1827 # Assembler & linker features
1828 # ---------------------------
1830 # Identify the assembler which will work hand-in-glove with the newly
1831 # built GCC, so that we can examine its features. This is the assembler
1832 # which will be driven by the driver program.
1834 # If build != host, and we aren't building gas in-tree, we identify a
1835 # build->target assembler and hope that it will have the same features
1836 # as the host->target assembler we'll be using.
1837 gcc_cv_gas_major_version=
1838 gcc_cv_gas_minor_version=
1839 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1841 m4_pattern_allow([AS_FOR_TARGET])dnl
1842 AS_VAR_SET_IF(gcc_cv_as,, [
1843 if test -x "$DEFAULT_ASSEMBLER"; then
1844 gcc_cv_as="$DEFAULT_ASSEMBLER"
1845 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1846 && test -f ../gas/Makefile \
1847 && test x$build = x$host; then
1848 gcc_cv_as=../gas/as-new$build_exeext
1849 elif test -x as$build_exeext; then
1850 # Build using assembler in the current directory.
1851 gcc_cv_as=./as$build_exeext
1852 elif test -x $AS_FOR_TARGET; then
1853 gcc_cv_as="$AS_FOR_TARGET"
1855 AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET)
1858 ORIGINAL_AS_FOR_TARGET=$gcc_cv_as
1859 AC_SUBST(ORIGINAL_AS_FOR_TARGET)
1861 AC_MSG_CHECKING(what assembler to use)
1862 if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then
1863 # Single tree build which includes gas. We want to prefer it
1864 # over whatever linker top-level may have detected, since
1865 # we'll use what we're building after installation anyway.
1866 AC_MSG_RESULT(newly built gas)
1868 _gcc_COMPUTE_GAS_VERSION
1869 in_tree_gas_is_elf=no
1870 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1871 || (grep 'obj_format = multi' ../gas/Makefile \
1872 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1874 in_tree_gas_is_elf=yes
1877 AC_MSG_RESULT($gcc_cv_as)
1881 # Identify the linker which will work hand-in-glove with the newly
1882 # built GCC, so that we can examine its features. This is the linker
1883 # which will be driven by the driver program.
1885 # If build != host, and we aren't building gas in-tree, we identify a
1886 # build->target linker and hope that it will have the same features
1887 # as the host->target linker we'll be using.
1888 gcc_cv_gld_major_version=
1889 gcc_cv_gld_minor_version=
1890 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1891 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1893 AS_VAR_SET_IF(gcc_cv_ld,, [
1894 if test -x "$DEFAULT_LINKER"; then
1895 gcc_cv_ld="$DEFAULT_LINKER"
1896 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1897 && test -f ../ld/Makefile \
1898 && test x$build = x$host; then
1899 gcc_cv_ld=../ld/ld-new$build_exeext
1900 elif test -x collect-ld$build_exeext; then
1901 # Build using linker in the current directory.
1902 gcc_cv_ld=./collect-ld$build_exeext
1903 elif test -x $LD_FOR_TARGET; then
1904 gcc_cv_ld="$LD_FOR_TARGET"
1906 AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
1909 ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
1910 AC_SUBST(ORIGINAL_LD_FOR_TARGET)
1912 AC_MSG_CHECKING(what linker to use)
1913 if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then
1914 # Single tree build which includes ld. We want to prefer it
1915 # over whatever linker top-level may have detected, since
1916 # we'll use what we're building after installation anyway.
1917 AC_MSG_RESULT(newly built ld)
1919 in_tree_ld_is_elf=no
1920 if (grep 'EMUL = .*elf' ../ld/Makefile \
1921 || grep 'EMUL = .*linux' ../ld/Makefile \
1922 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1923 in_tree_ld_is_elf=yes
1925 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
1928 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1929 if test x$gcc_cv_gld_version != x; then
1933 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1934 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1937 AC_MSG_RESULT($gcc_cv_ld)
1941 # Figure out what nm we will be using.
1942 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1943 AS_VAR_SET_IF(gcc_cv_nm,, [
1944 if test -f $gcc_cv_binutils_srcdir/configure.in \
1945 && test -f ../binutils/Makefile; then
1946 gcc_cv_nm=../binutils/nm-new$build_exeext
1947 elif test -x nm$build_exeext; then
1948 gcc_cv_nm=./nm$build_exeext
1949 elif test -x $NM_FOR_TARGET; then
1950 gcc_cv_nm="$NM_FOR_TARGET"
1952 AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET)
1955 AC_MSG_CHECKING(what nm to use)
1956 if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then
1957 # Single tree build which includes binutils.
1958 AC_MSG_RESULT(newly built nm)
1961 AC_MSG_RESULT($gcc_cv_nm)
1965 ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm
1966 AC_SUBST(ORIGINAL_NM_FOR_TARGET)
1968 # Figure out what objdump we will be using.
1969 AS_VAR_SET_IF(gcc_cv_objdump,, [
1970 if test -f $gcc_cv_binutils_srcdir/configure.in \
1971 && test -f ../binutils/Makefile; then
1972 # Single tree build which includes binutils.
1973 gcc_cv_objdump=../binutils/objdump$build_exeext
1974 elif test -x objdump$build_exeext; then
1975 gcc_cv_objdump=./objdump$build_exeext
1976 elif test -x $OBJDUMP_FOR_TARGET; then
1977 gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
1979 AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
1982 AC_MSG_CHECKING(what objdump to use)
1983 if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then
1984 # Single tree build which includes binutils.
1985 AC_MSG_RESULT(newly built objdump)
1986 elif test x$gcc_cv_objdump = x; then
1987 AC_MSG_RESULT(not found)
1989 AC_MSG_RESULT($gcc_cv_objdump)
1992 # Figure out what assembler alignment features are present.
1993 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1997 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1998 [Define if your assembler supports .balign and .p2align.])])
2000 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2003 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2004 [Define if your assembler supports specifying the maximum number
2005 of bytes to skip when using the GAS .p2align command.])])
2007 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2009 [conftest_label1: .word 0
2011 conftest_label2: .word 0
2013 [if test x$gcc_cv_nm != x; then
2014 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2015 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2016 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2018 else gcc_cv_as_subsection_m1=yes
2020 rm -f conftest.nm1 conftest.nm2
2022 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2023 [Define if your assembler supports .subsection and .subsection -1 starts
2024 emitting at the beginning of your section.])])
2026 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2029 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2031 gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,
2033 [ .weakref foobar, barfnot],,
2034 [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])])
2036 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2039 .NSUBSPA $CODE$,COMDAT],,
2040 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2042 # .hidden needs to be supported in both the assembler and the linker,
2043 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2044 # This is irritatingly difficult to feature test for; we have to check the
2045 # date string after the version number. If we've got an in-tree
2046 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2048 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2049 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2054 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2055 [if test $in_tree_ld = yes ; then
2057 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2058 && test $in_tree_ld_is_elf = yes; then
2059 gcc_cv_ld_hidden=yes
2062 gcc_cv_ld_hidden=yes
2063 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2064 if echo "$ld_ver" | grep GNU > /dev/null; then
2066 ld_vers=`echo $ld_ver | sed -n \
2067 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2068 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2069 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2070 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2071 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2072 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2073 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2074 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2075 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2076 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2077 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2078 if test 0"$ld_date" -lt 20020404; then
2079 if test -n "$ld_date"; then
2080 # If there was date string, but was earlier than 2002-04-04, fail
2082 elif test -z "$ld_vers"; then
2083 # If there was no date string nor ld version number, something is wrong
2086 test -z "$ld_vers_patch" && ld_vers_patch=0
2087 if test "$ld_vers_major" -lt 2; then
2089 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2090 gcc_cv_ld_hidden="no"
2091 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2099 hppa64*-*-hpux* | ia64*-*-hpux*)
2100 gcc_cv_ld_hidden=yes
2108 libgcc_visibility=no
2109 AC_SUBST(libgcc_visibility)
2110 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2111 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2112 libgcc_visibility=yes
2113 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2114 [Define if your assembler and linker support .hidden.])
2117 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2118 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2126 [# GAS versions before 2.11 do not support uleb128,
2127 # despite appearing to.
2128 # ??? There exists an elf-specific test that will crash
2129 # the assembler. Perhaps it's better to figure out whether
2130 # arbitrary sections are supported and try the test.
2131 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2132 if echo "$as_ver" | grep GNU > /dev/null; then
2134 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2135 as_major=`echo $as_ver | sed 's/\..*//'`
2136 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2138 if test $as_major -eq 2 && test $as_minor -lt 11
2140 else gcc_cv_as_leb128=yes
2143 [AC_DEFINE(HAVE_AS_LEB128, 1,
2144 [Define if your assembler supports .sleb128 and .uleb128.])])
2146 # GAS versions up to and including 2.11.0 may mis-optimize
2148 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2156 .section .eh_frame,"aw",@progbits
2158 .4byte .LECIE1-.LSCIE1
2172 .4byte .LEFDE1-.LASFDE1
2174 .4byte .LASFDE1-__FRAME_BEGIN__
2182 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2183 cat > conftest.lit <<EOF
2184 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2185 0010 01000000 12000000 18000000 00000000 ................
2186 0020 08000000 04080000 0044 .........D @&t@
2188 cat > conftest.big <<EOF
2189 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2190 0010 00000001 00000012 00000018 00000000 ................
2191 0020 00000008 04000000 0844 .........D @&t@
2193 # If the assembler didn't choke, and we can objdump,
2194 # and we got the correct data, then succeed.
2195 if test x$gcc_cv_objdump != x \
2196 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2197 | tail -3 > conftest.got \
2198 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2199 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2201 gcc_cv_as_eh_frame=yes
2202 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2203 gcc_cv_as_eh_frame=buggy
2205 # Uh oh, what do we do now?
2206 gcc_cv_as_eh_frame=no
2209 if test $gcc_cv_as_eh_frame = buggy; then
2210 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2211 [Define if your assembler mis-optimizes .eh_frame data.])
2214 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2215 [elf,2,12,0], [--fatal-warnings],
2216 [.section .rodata.str, "aMS", @progbits, 1])
2217 if test $gcc_cv_as_shf_merge = no; then
2218 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2219 [elf,2,12,0], [--fatal-warnings],
2220 [.section .rodata.str, "aMS", %progbits, 1])
2222 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2223 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2224 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2226 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2227 [elf,2,16,0], [--fatal-warnings],
2228 [.section .text,"axG",@progbits,.foo,comdat])
2229 if test $gcc_cv_as_comdat_group = yes; then
2230 gcc_cv_as_comdat_group_percent=no
2232 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2233 [elf,2,16,0], [--fatal-warnings],
2234 [.section .text,"axG",%progbits,.foo,comdat])
2236 if test $in_tree_ld != yes && test x"$ld_vers" != x; then
2238 if test 0"$ld_date" -lt 20050308; then
2239 if test -n "$ld_date"; then
2240 # If there was date string, but was earlier than 2005-03-08, fail
2242 elif test "$ld_vers_major" -lt 2; then
2244 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2248 if test $comdat_group = no; then
2249 gcc_cv_as_comdat_group=no
2250 gcc_cv_as_comdat_group_percent=no
2253 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
2254 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2255 [Define 0/1 if your assembler and linker support COMDAT groups.])
2257 # Thread-local storage - the check is heavily parametrized.
2266 .section ".tdata","awT",@progbits
2269 ldq $27,__tls_get_addr($29) !literal!1
2270 lda $16,foo($29) !tlsgd!1
2271 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2272 ldq $27,__tls_get_addr($29) !literal!2
2273 lda $16,foo($29) !tlsldm!2
2274 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2275 ldq $1,foo($29) !gotdtprel
2276 ldah $2,foo($29) !dtprelhi
2277 lda $3,foo($2) !dtprello
2278 lda $4,foo($29) !dtprel
2279 ldq $1,foo($29) !gottprel
2280 ldah $2,foo($29) !tprelhi
2281 lda $3,foo($2) !tprello
2282 lda $4,foo($29) !tprel'
2285 tls_as_opt=--fatal-warnings
2289 .section ".tdata","awT",@progbits
2301 .section ".tdata","awT",@progbits
2305 addil LT%foo-$tls_gdidx$,gp
2306 ldo RT%foo-$tls_gdidx$(%r1),%arg0
2309 addil LT%foo-$tls_ldidx$,gp
2311 ldo RT%foo-$tls_ldidx$(%r1),%arg0
2312 addil LR%foo-$tls_dtpoff$,%ret0
2313 ldo RR%foo-$tls_dtpoff$(%r1),%t1
2315 addil LT%foo-$tls_ieoff$,gp
2316 ldw RT%foo-$tls_ieoff$(%r1),%t2
2319 addil LR%foo-$tls_leoff$,%t1
2320 ldo RR%foo-$tls_leoff$(%r1),%t2'
2323 tls_as_opt=--fatal-warnings
2327 .section ".tdata","awT",%progbits
2340 .section ".tdata","awT",@progbits
2344 leal foo@TLSGD(,%ebx,1), %eax
2345 leal foo@TLSLDM(%ebx), %eax
2346 leal foo@DTPOFF(%eax), %edx
2347 movl foo@GOTTPOFF(%ebx), %eax
2348 subl foo@GOTTPOFF(%ebx), %eax
2349 addl foo@GOTNTPOFF(%ebx), %eax
2350 movl foo@INDNTPOFF, %eax
2351 movl $foo@TPOFF, %eax
2352 subl $foo@TPOFF, %eax
2353 leal foo@NTPOFF(%ecx), %eax'
2356 tls_as_opt=--fatal-warnings
2360 .section ".tdata","awT",@progbits
2364 leaq foo@TLSGD(%rip), %rdi
2365 leaq foo@TLSLD(%rip), %rdi
2366 leaq foo@DTPOFF(%rax), %rdx
2367 movq foo@GOTTPOFF(%rip), %rax
2368 movq $foo@TPOFF, %rax'
2371 tls_as_opt=--fatal-warnings
2375 .section ".tdata","awT",@progbits
2378 addl r16 = @ltoff(@dtpmod(foo#)), gp
2379 addl r17 = @ltoff(@dtprel(foo#)), gp
2380 addl r18 = @ltoff(@tprel(foo#)), gp
2381 addl r19 = @dtprel(foo#), gp
2382 adds r21 = @dtprel(foo#), r13
2383 movl r23 = @dtprel(foo#)
2384 addl r20 = @tprel(foo#), gp
2385 adds r22 = @tprel(foo#), r13
2386 movl r24 = @tprel(foo#)'
2389 tls_as_opt=--fatal-warnings
2393 .section .tdata,"awT",@progbits
2397 addiu $4, $28, %tlsgd(x)
2398 addiu $4, $28, %tlsldm(x)
2399 lui $4, %dtprel_hi(x)
2400 addiu $4, $4, %dtprel_lo(x)
2401 lw $4, %gottprel(x)($28)
2402 lui $4, %tprel_hi(x)
2403 addiu $4, $4, %tprel_lo(x)'
2406 tls_as_opt='-32 --fatal-warnings'
2410 .section ".tdata","awT",@progbits
2418 addi 3,31,ld0@got@tlsgd
2420 addi 3,31,x1@got@tlsld
2423 addis 9,3,x2@dtprel@ha
2424 addi 9,9,x2@dtprel@l
2425 lwz 9,x3@got@tprel(31)
2428 addis 9,2,x2@tprel@ha
2429 addi 9,9,x2@tprel@l'
2432 tls_as_opt="-a32 --fatal-warnings"
2436 .section ".tdata","awT",@progbits
2444 addi 3,2,ld0@got@tlsgd
2450 addi 3,2,x1@got@tlsld
2456 addis 9,3,x2@dtprel@ha
2457 addi 9,9,x2@dtprel@l
2460 ld 9,x3@got@dtprel(2)
2466 tls_as_opt="-a64 --fatal-warnings"
2470 .section ".tdata","awT",@progbits
2479 l %r1,foo@GOTNTPOFF(%r12)
2480 l %r1,0(%r1):tls_load:foo
2481 bas %r14,0(%r1,%r13):tls_gdcall:foo
2482 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2485 tls_as_opt="-m31 --fatal-warnings"
2489 .section ".tdata","awT",@progbits
2497 lg %r1,foo@GOTNTPOFF(%r12)
2498 larl %r1,foo@INDNTPOFF
2499 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2500 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2503 tls_as_opt="-m64 -Aesame --fatal-warnings"
2505 sh-*-* | sh[34]-*-*)
2507 .section ".tdata","awT",@progbits
2517 tls_as_opt=--fatal-warnings
2521 sparc*-sun-solaris2.[56789]*)
2522 # TLS was introduced in the Solaris 9 4/04 release but
2523 # we do not enable it by default on Solaris 9 either.
2524 if test "x$enable_tls" = xyes ; then
2530 sparc*-sun-solaris2.*)
2537 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2539 .section ".tdata",#alloc,#write,#tls
2542 sethi %tgd_hi22(foo), %o0
2543 add %o0, %tgd_lo10(foo), %o1
2544 add %l7, %o1, %o0, %tgd_add(foo)
2545 call __tls_get_addr, %tgd_call(foo)
2546 sethi %tldm_hi22(foo), %l1
2547 add %l1, %tldm_lo10(foo), %l2
2548 add %l7, %l2, %o0, %tldm_add(foo)
2549 call __tls_get_addr, %tldm_call(foo)
2550 sethi %tldo_hix22(foo), %l3
2551 xor %l3, %tldo_lox10(foo), %l4
2552 add %o0, %l4, %l5, %tldo_add(foo)
2553 sethi %tie_hi22(foo), %o3
2554 add %o3, %tie_lo10(foo), %o3
2555 ld [%l7 + %o3], %o2, %tie_ld(foo)
2556 add %g7, %o2, %o4, %tie_add(foo)
2557 sethi %tle_hix22(foo), %l1
2558 xor %l1, %tle_lox10(foo), %o5
2559 ld [%g7 + %o5], %o1'
2564 .section ".tdata","awT",@progbits
2567 sethi %tgd_hi22(foo), %o0
2568 add %o0, %tgd_lo10(foo), %o1
2569 add %l7, %o1, %o0, %tgd_add(foo)
2570 call __tls_get_addr, %tgd_call(foo)
2571 sethi %tldm_hi22(foo), %l1
2572 add %l1, %tldm_lo10(foo), %l2
2573 add %l7, %l2, %o0, %tldm_add(foo)
2574 call __tls_get_addr, %tldm_call(foo)
2575 sethi %tldo_hix22(foo), %l3
2576 xor %l3, %tldo_lox10(foo), %l4
2577 add %o0, %l4, %l5, %tldo_add(foo)
2578 sethi %tie_hi22(foo), %o3
2579 add %o3, %tie_lo10(foo), %o3
2580 ld [%l7 + %o3], %o2, %tie_ld(foo)
2581 add %g7, %o2, %o4, %tie_add(foo)
2582 sethi %tle_hix22(foo), %l1
2583 xor %l1, %tle_lox10(foo), %o5
2584 ld [%g7 + %o5], %o1'
2587 tls_as_opt="-32 --fatal-warnings"
2593 if test "x$enable_tls" = xno ; then
2594 : # TLS explicitly disabled.
2595 elif test "x$enable_tls" = xyes ; then
2596 set_have_as_tls=yes # TLS explicitly enabled.
2597 elif test -z "$tls_first_major"; then
2598 : # If we don't have a check, assume no support.
2600 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2601 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2602 [set_have_as_tls=yes])
2604 if test $set_have_as_tls = yes ; then
2605 AC_DEFINE(HAVE_AS_TLS, 1,
2606 [Define if your assembler supports thread-local storage.])
2609 # Target-specific assembler checks.
2611 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2612 gcc_cv_ld_static_dynamic=no
2613 if test $in_tree_ld = yes ; then
2614 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2615 gcc_cv_ld_static_dynamic=yes
2617 elif test x$gcc_cv_ld != x; then
2618 # Check if linker supports -Bstatic/-Bdynamic option
2619 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2620 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2621 gcc_cv_ld_static_dynamic=yes
2624 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2625 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2626 [Define if your linker supports -Bstatic/-Bdynamic option.])
2628 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2630 if test x"$demangler_in_ld" = xyes; then
2631 AC_MSG_CHECKING(linker --demangle support)
2632 gcc_cv_ld_demangle=no
2633 if test $in_tree_ld = yes; then
2634 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2635 gcc_cv_ld_demangle=yes
2637 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2638 # Check if the GNU linker supports --demangle option
2639 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2640 gcc_cv_ld_demangle=yes
2643 if test x"$gcc_cv_ld_demangle" = xyes; then
2644 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2645 [Define if your linker supports --demangle option.])
2647 AC_MSG_RESULT($gcc_cv_ld_demangle)
2651 # All TARGET_ABI_OSF targets.
2652 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2653 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2654 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2657 extbl $3, $2, $3 !lituse_bytoff!1
2658 ldq $2, a($29) !literal!1
2659 ldq $4, b($29) !literal!2
2660 ldq_u $3, 0($2) !lituse_base!1
2661 ldq $27, f($29) !literal!5
2662 jsr $26, ($27), f !lituse_jsr!5
2663 ldah $29, 0($26) !gpdisp!3
2664 lda $0, c($29) !gprel
2665 ldah $1, d($29) !gprelhigh
2666 lda $1, d($1) !gprellow
2667 lda $29, 0($29) !gpdisp!3],,
2668 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2669 [Define if your assembler supports explicit relocations.])])
2670 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2671 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2674 ldq $27, a($29) !literal!1
2675 jsr $26, ($27), a !lituse_jsrdirect!1],,
2676 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2677 [Define if your assembler supports the lituse_jsrdirect relocation.])])
2681 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2682 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2683 [-no-mul-bug-abort], [.text],,
2684 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2685 [Define if your assembler supports the -no-mul-bug-abort option.])])
2689 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2690 [.register %g2, #scratch],,
2691 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2692 [Define if your assembler supports .register.])])
2694 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2696 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2697 [Define if your assembler supports -relax option.])])
2699 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2700 gcc_cv_as_sparc_ua_pcrel,,
2708 .uaword %r_disp32(foo)],
2709 [if test x$gcc_cv_ld != x \
2710 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2711 gcc_cv_as_sparc_ua_pcrel=yes
2714 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2715 [Define if your assembler and linker support unaligned PC relative relocs.])
2717 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2718 gcc_cv_as_sparc_ua_pcrel_hidden,,
2723 .uaword %r_disp32(foo)
2724 .byte 0x32, 0x33, 0x34
2729 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2730 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2731 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2732 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2733 if $gcc_cv_objdump -R conftest 2> /dev/null \
2734 | grep 'DISP32' > /dev/null 2>&1; then
2737 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2741 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2742 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2743 ]) # unaligned pcrel relocs
2745 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2746 gcc_cv_as_sparc_offsetable_lo10,,
2749 or %g1, %lo(ab) + 12, %g1
2750 or %g1, %lo(ab + 12), %g1],
2751 [if test x$gcc_cv_objdump != x \
2752 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2753 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2754 gcc_cv_as_sparc_offsetable_lo10=yes
2756 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2757 [Define if your assembler supports offsetable %lo().])])
2761 i[34567]86-*-* | x86_64-*-*)
2764 cygwin* | pe | mingw32*)
2765 # Used for DWARF 2 in PE
2766 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2767 gcc_cv_as_ix86_pe_secrel32,
2773 [if test x$gcc_cv_ld != x \
2774 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2775 gcc_cv_as_ix86_pe_secrel32=yes
2778 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2779 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2783 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2784 gcc_cv_as_ix86_filds_fists,
2785 [2,9,0],, [filds mem; fists mem],,
2786 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2787 [Define if your assembler uses the new HImode fild and fist notation.])])
2789 gcc_GAS_CHECK_FEATURE([cmov syntax],
2790 gcc_cv_as_ix86_cmov_sun_syntax,,,
2791 [cmovl.l %edx, %eax],,
2792 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2793 [Define if your assembler supports the Sun syntax for cmov.])])
2795 # This one is used unconditionally by i386.[ch]; it is to be defined
2796 # to 1 if the feature is present, 0 otherwise.
2797 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2798 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2804 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2805 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2806 [Define true if the assembler supports '.long foo@GOTOFF'.])
2810 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2811 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2813 addl r15 = @ltoffx(x#), gp
2815 ld8.mov r16 = [[r15]], x#],,
2816 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2817 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2823 *-*-aix*) conftest_s=' .machine "pwr5"
2827 gcc_GAS_CHECK_FEATURE([.machine directive support],
2828 gcc_cv_as_machine_directive,,,
2829 [ .machine ppc7400])
2830 if test x$gcc_cv_as_machine_directive != xyes; then
2831 echo "*** This target requires an assembler supporting \".machine\"" >&2
2832 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2833 test x$build = x$target && exit 1
2837 *) conftest_s=' .machine power4
2842 gcc_GAS_CHECK_FEATURE([mfcr field support],
2843 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2845 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2846 [Define if your assembler supports mfcr field.])])
2849 *-*-aix*) conftest_s=' .machine "pwr5"
2852 *) conftest_s=' .machine power5
2857 gcc_GAS_CHECK_FEATURE([popcntb support],
2858 gcc_cv_as_powerpc_popcntb, [2,17,0],,
2860 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
2861 [Define if your assembler supports popcntb field.])])
2864 *-*-aix*) conftest_s=' .machine "pwr5x"
2867 *) conftest_s=' .machine power5
2872 gcc_GAS_CHECK_FEATURE([fp round support],
2873 gcc_cv_as_powerpc_fprnd, [2,17,0],,
2875 [AC_DEFINE(HAVE_AS_FPRND, 1,
2876 [Define if your assembler supports fprnd.])])
2879 *-*-aix*) conftest_s=' .csect .text[[PR]]
2881 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
2885 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
2886 *) conftest_s=' .text
2888 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
2891 gcc_GAS_CHECK_FEATURE([rel16 relocs],
2892 gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
2894 [AC_DEFINE(HAVE_AS_REL16, 1,
2895 [Define if your assembler supports R_PPC_REL16 relocs.])])
2899 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2900 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2901 [ lw $4,%gp_rel(foo)($4)],,
2902 [if test x$target_cpu_default = x
2903 then target_cpu_default=MASK_EXPLICIT_RELOCS
2904 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2909 # Mips and HP-UX need the GNU assembler.
2910 # Linux on IA64 might be able to use the Intel assembler.
2913 mips*-*-* | *-*-hpux* )
2914 if test x$gas_flag = xyes \
2915 || test x"$host" != x"$build" \
2916 || test ! -x "$gcc_cv_as" \
2917 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2920 echo "*** This configuration requires the GNU assembler" >&2
2926 # ??? Not all targets support dwarf2 debug_line, even within a version
2927 # of gas. Moreover, we need to emit a valid instruction to trigger any
2928 # info to the output file. So, as supported targets are added to gas 2.11,
2929 # add some instruction here to (also) show we expect this might work.
2930 # ??? Once 2.11 is released, probably need to add first known working
2931 # version to the per-target configury.
2933 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2934 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2935 | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-*)
2938 ia64*-*-* | s390*-*-*)
2945 if test x"$insn" != x; then
2947 .file 1 \"conftest.s\"
2950 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2951 gcc_cv_as_dwarf2_debug_line,
2952 [elf,2,11,0],, [$conftest_s],
2953 [if test x$gcc_cv_objdump != x \
2954 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2955 | grep debug_line > /dev/null 2>&1; then
2956 gcc_cv_as_dwarf2_debug_line=yes
2959 # The .debug_line file table must be in the exact order that
2960 # we specified the files, since these indices are also used
2961 # by DW_AT_decl_file. Approximate this test by testing if
2962 # the assembler bitches if the same index is assigned twice.
2963 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2964 gcc_cv_as_dwarf2_file_buggy,,,
2968 if test $gcc_cv_as_dwarf2_debug_line = yes \
2969 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2970 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2971 [Define if your assembler supports dwarf2 .file/.loc directives,
2972 and preserves file table indices exactly as given.])
2975 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2976 gcc_cv_as_gdwarf2_flag,
2977 [elf,2,11,0], [--gdwarf2], [$insn],,
2978 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2979 [Define if your assembler supports the --gdwarf2 option.])])
2981 gcc_GAS_CHECK_FEATURE([--gstabs option],
2982 gcc_cv_as_gstabs_flag,
2983 [elf,2,11,0], [--gstabs], [$insn],
2984 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2985 # and warns about it, but still exits successfully. So check for
2987 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2989 else gcc_cv_as_gstabs_flag=yes
2991 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2992 [Define if your assembler supports the --gstabs option.])])
2995 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2996 gcc_cv_ld_ro_rw_mix=unknown
2997 if test $in_tree_ld = yes ; then
2998 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2999 && test $in_tree_ld_is_elf = yes; then
3000 gcc_cv_ld_ro_rw_mix=read-write
3002 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
3003 echo '.section myfoosect, "a"' > conftest1.s
3004 echo '.section myfoosect, "aw"' > conftest2.s
3005 echo '.byte 1' >> conftest2.s
3006 echo '.section myfoosect, "a"' > conftest3.s
3007 echo '.byte 0' >> conftest3.s
3008 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
3009 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
3010 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
3011 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
3012 conftest2.o conftest3.o > /dev/null 2>&1; then
3013 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
3014 | sed -e '/myfoosect/!d' -e N`
3015 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
3016 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
3017 gcc_cv_ld_ro_rw_mix=read-only
3019 gcc_cv_ld_ro_rw_mix=read-write
3024 rm -f conftest.* conftest[123].*
3027 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
3028 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
3029 [Define if your linker links a mix of read-only
3030 and read-write sections into a read-write section.])
3032 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
3034 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
3035 gcc_cv_ld_eh_frame_hdr=no
3036 if test $in_tree_ld = yes ; then
3037 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
3038 && test $in_tree_ld_is_elf = yes; then
3039 gcc_cv_ld_eh_frame_hdr=yes
3041 elif test x$gcc_cv_ld != x; then
3042 # Check if linker supports --eh-frame-hdr option
3043 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
3044 gcc_cv_ld_eh_frame_hdr=yes
3047 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
3048 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
3049 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
3050 [Define if your linker supports --eh-frame-hdr option.])
3052 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
3054 AC_MSG_CHECKING(linker position independent executable support)
3056 if test $in_tree_ld = yes ; then
3057 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
3058 && test $in_tree_ld_is_elf = yes; then
3061 elif test x$gcc_cv_ld != x; then
3062 # Check if linker supports -pie option
3063 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
3067 if test x"$gcc_cv_ld_pie" = xyes; then
3068 AC_DEFINE(HAVE_LD_PIE, 1,
3069 [Define if your linker supports -pie option.])
3071 AC_MSG_RESULT($gcc_cv_ld_pie)
3077 AC_CACHE_CHECK(linker --as-needed support,
3078 gcc_cv_ld_as_needed,
3079 [gcc_cv_ld_as_needed=no
3080 if test $in_tree_ld = yes ; then
3081 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
3082 && test $in_tree_ld_is_elf = yes; then
3083 gcc_cv_ld_as_needed=yes
3085 elif test x$gcc_cv_ld != x; then
3086 # Check if linker supports --as-needed and --no-as-needed options
3087 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
3088 gcc_cv_ld_as_needed=yes
3092 if test x"$gcc_cv_ld_as_needed" = xyes; then
3093 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
3094 [Define if your linker supports --as-needed and --no-as-needed options.])
3097 case "$target:$tm_file" in
3098 powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
3099 AC_CACHE_CHECK(linker support for omitting dot symbols,
3100 gcc_cv_ld_no_dot_syms,
3101 [gcc_cv_ld_no_dot_syms=no
3102 if test $in_tree_ld = yes ; then
3103 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
3104 gcc_cv_ld_no_dot_syms=yes
3106 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
3107 cat > conftest1.s <<EOF
3111 cat > conftest2.s <<EOF
3112 .section ".opd","aw"
3117 .quad .LEfoo,.TOC.@tocbase,0
3123 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
3124 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
3125 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
3126 gcc_cv_ld_no_dot_syms=yes
3128 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3131 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3132 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3133 [Define if your PowerPC64 linker only needs function descriptor syms.])
3138 AC_CACHE_CHECK(linker --sysroot support,
3140 [gcc_cv_ld_sysroot=no
3141 if test $in_tree_ld = yes ; then
3142 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
3143 gcc_cv_ld_sysroot=yes
3145 elif test x$gcc_cv_ld != x; then
3146 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3147 gcc_cv_ld_sysroot=yes
3150 if test x"$gcc_cv_ld_sysroot" = xyes; then
3151 AC_DEFINE(HAVE_LD_SYSROOT, 1,
3152 [Define if your linker supports --sysroot.])
3155 if test x$with_sysroot = x && test x$host = x$target \
3156 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3157 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3158 [Define to PREFIX/include if cpp should also search that directory.])
3161 # Test for stack protector support in target C library.
3164 AC_CACHE_CHECK(__stack_chk_fail in target GNU C library,
3165 gcc_cv_libc_provides_ssp,
3166 [gcc_cv_libc_provides_ssp=no
3167 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3168 if test "x$with_sysroot" = x; then
3169 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3170 elif test "x$with_sysroot" = xyes; then
3171 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3173 glibc_header_dir="${with_sysroot}/usr/include"
3176 glibc_header_dir=/usr/include
3178 # glibc 2.4 and later provides __stack_chk_fail and
3179 # either __stack_chk_guard, or TLS access to stack guard canary.
3180 if test -f $glibc_header_dir/features.h \
3181 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
3182 $glibc_header_dir/features.h > /dev/null; then
3183 if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
3184 $glibc_header_dir/features.h > /dev/null; then
3185 gcc_cv_libc_provides_ssp=yes
3186 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
3187 $glibc_header_dir/features.h > /dev/null \
3188 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
3189 $glibc_header_dir/features.h > /dev/null; then
3190 gcc_cv_libc_provides_ssp=yes
3193 *) gcc_cv_libc_provides_ssp=no ;;
3195 if test x$gcc_cv_libc_provides_ssp = xyes; then
3196 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
3197 [Define if your target C library provides stack protector support])
3200 # Find out what GC implementation we want, or may, use.
3202 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3210 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3213 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3218 echo "Using $GGC for garbage collection."
3220 # Use the system's zlib library.
3222 zlibinc="-I\$(srcdir)/../zlib"
3223 AC_ARG_WITH(system-zlib,
3224 [ --with-system-zlib use installed libz],
3231 dnl Very limited version of automake's enable-maintainer-mode
3233 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3234 dnl maintainer-mode is disabled by default
3235 AC_ARG_ENABLE(maintainer-mode,
3236 [ --enable-maintainer-mode
3237 enable make rules and dependencies not useful
3238 (and sometimes confusing) to the casual installer],
3239 maintainer_mode=$enableval,
3242 AC_MSG_RESULT($maintainer_mode)
3244 if test "$maintainer_mode" = "yes"; then
3255 # Make empty files to contain the specs and options for each language.
3256 # Then add #include lines to for a compiler that has specs and/or options.
3261 for subdir in . $subdirs
3263 if test -f $srcdir/$subdir/lang.opt; then
3264 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3266 if test -f $srcdir/$subdir/lang-specs.h; then
3267 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3269 if test -f $srcdir/$subdir/$subdir-tree.def; then
3270 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3274 # These (without "all_") are set in each config-lang.in.
3275 # `language' must be a single word so is spelled singularly.
3280 all_outputs='Makefile gccbug mklibgcc libada-mk'
3281 # List of language makefile fragments.
3283 # List of language subdirectory makefiles. Deprecated.
3285 # Files for gengtype
3286 all_gtfiles="$target_gtfiles"
3287 # Files for gengtype with language
3288 all_gtfiles_files_langs=
3289 all_gtfiles_files_files=
3291 # Add the language fragments.
3292 # Languages are added via two mechanisms. Some information must be
3293 # recorded in makefile variables, these are defined in config-lang.in.
3294 # We accumulate them and plug them into the main Makefile.
3295 # The other mechanism is a set of hooks for each of the main targets
3296 # like `clean', `install', etc.
3298 language_hooks="Make-hooks"
3308 . ${srcdir}/$s/config-lang.in
3309 if test "x$language" = x
3311 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3314 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3315 if test -f ${srcdir}/$s/Makefile.in
3316 then all_lang_makefiles="$s/Makefile"
3318 all_languages="$all_languages $language"
3319 if test "x$boot_language" = xyes
3321 all_boot_languages="$all_boot_languages $language"
3323 all_compilers="$all_compilers $compilers"
3324 all_stagestuff="$all_stagestuff $stagestuff"
3325 all_outputs="$all_outputs $outputs"
3326 all_gtfiles="$all_gtfiles $gtfiles"
3329 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3330 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3334 # Pick up gtfiles for c
3337 . ${srcdir}/c-config-lang.in
3338 all_gtfiles="$all_gtfiles $gtfiles"
3341 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3342 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3346 for language in $all_languages
3348 check_languages="$check_languages check-$language"
3351 # We link each language in with a set of hooks, reached indirectly via
3356 target_list="all.cross start.encap rest.encap tags \
3357 install-common install-man \
3358 uninstall info man srcextra srcman srcinfo \
3359 mostlyclean clean distclean maintainer-clean \
3360 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3361 for t in $target_list
3364 for lang in $all_languages
3368 echo "lang.$t: $x" >> Make-hooks
3377 echo "dir ." > .gdbinit
3378 echo "dir ${srcdir}" >> .gdbinit
3379 if test x$gdb_needs_out_file_path = xyes
3381 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3383 if test "x$subdirs" != x; then
3386 echo "dir ${srcdir}/$s" >> .gdbinit
3389 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3391 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3392 # absolute path for gcc_tooldir based on inserting the number of up-directory
3393 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3394 # $(libsubdir)/@(unlibsubdir) based path.
3395 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3396 # make and thus we'd get different behavior depending on where we built the
3398 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3399 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3401 changequote(<<, >>)dnl
3402 # An explanation of the sed strings:
3403 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3404 # -e 's|/$||' match a trailing forward slash and eliminates it
3405 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3406 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3408 # (*) Note this pattern overwrites the first character of the string
3409 # with a forward slash if one is not already present. This is not a
3410 # problem because the exact names of the sub-directories concerned is
3411 # unimportant, just the number of them matters.
3413 # The practical upshot of these patterns is like this:
3415 # prefix exec_prefix result
3416 # ------ ----------- ------
3418 # /foo/ /foo/bar ../
3419 # /foo /foo/bar/ ../
3420 # /foo/ /foo/bar/ ../
3421 # /foo /foo/bar/ugg ../../
3424 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3425 changequote([, ])dnl
3427 AC_SUBST(gcc_tooldir)
3430 # Find a directory in which to install a shared libgcc.
3432 AC_ARG_ENABLE(version-specific-runtime-libs,
3433 [ --enable-version-specific-runtime-libs
3434 specify that runtime libraries should be
3435 installed in a compiler-specific directory])
3437 AC_ARG_WITH(slibdir,
3438 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3439 slibdir="$with_slibdir",
3440 if test "${enable_version_specific_runtime_libs+set}" = set; then
3441 slibdir='$(libsubdir)'
3442 elif test "$host" != "$target"; then
3443 slibdir='$(build_tooldir)/lib'
3449 objdir=`${PWDCMD-pwd}`
3452 # Substitute configuration variables
3455 AC_SUBST(all_boot_languages)
3456 AC_SUBST(all_compilers)
3457 AC_SUBST(all_gtfiles)
3458 AC_SUBST(all_gtfiles_files_langs)
3459 AC_SUBST(all_gtfiles_files_files)
3460 AC_SUBST(all_lang_makefrags)
3461 AC_SUBST(all_lang_makefiles)
3462 AC_SUBST(all_languages)
3463 AC_SUBST(all_stagestuff)
3464 AC_SUBST(build_exeext)
3465 AC_SUBST(build_install_headers_dir)
3466 AC_SUBST(build_xm_file_list)
3467 AC_SUBST(build_xm_include_list)
3468 AC_SUBST(build_xm_defines)
3469 AC_SUBST(check_languages)
3470 AC_SUBST(cc_set_by_configure)
3471 AC_SUBST(quoted_cc_set_by_configure)
3472 AC_SUBST(cpp_install_dir)
3473 AC_SUBST(xmake_file)
3474 AC_SUBST(tmake_file)
3475 AC_SUBST(extra_gcc_objs)
3476 AC_SUBST(extra_headers_list)
3477 AC_SUBST(extra_objs)
3478 AC_SUBST(extra_parts)
3479 AC_SUBST(extra_passes)
3480 AC_SUBST(extra_programs)
3481 AC_SUBST(float_h_file)
3482 AC_SUBST(gcc_config_arguments)
3483 AC_SUBST(gcc_gxx_include_dir)
3484 AC_SUBST(libstdcxx_incdir)
3485 AC_SUBST(host_exeext)
3486 AC_SUBST(host_xm_file_list)
3487 AC_SUBST(host_xm_include_list)
3488 AC_SUBST(host_xm_defines)
3489 AC_SUBST(out_host_hook_obj)
3491 AC_SUBST(lang_opt_files)
3492 AC_SUBST(lang_specs_files)
3493 AC_SUBST(lang_tree_files)
3494 AC_SUBST(local_prefix)
3496 AC_SUBST(objc_boehm_gc)
3498 AC_SUBST(out_object_file)
3499 AC_SUBST(stage_prefix_set_by_configure)
3500 AC_SUBST(quoted_stage_prefix_set_by_configure)
3501 AC_SUBST(thread_file)
3502 AC_SUBST(tm_file_list)
3503 AC_SUBST(tm_include_list)
3504 AC_SUBST(tm_defines)
3505 AC_SUBST(tm_p_file_list)
3506 AC_SUBST(tm_p_include_list)
3507 AC_SUBST(xm_file_list)
3508 AC_SUBST(xm_include_list)
3509 AC_SUBST(xm_defines)
3510 AC_SUBST(c_target_objs)
3511 AC_SUBST(cxx_target_objs)
3512 AC_SUBST(target_cpu_default)
3514 AC_SUBST_FILE(language_hooks)
3517 if test x${build} = x${host} ; then
3518 if test x${host} = x${target} ; then
3519 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3521 echo "Links are now set up to build a cross-compiler" 1>&2
3522 echo " from ${host} to ${target}." 1>&2
3525 if test x${host} = x${target} ; then
3526 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3527 echo " for ${target}." 1>&2
3529 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3530 echo " from ${host} to ${target}." 1>&2
3534 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3535 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3537 # Configure the subdirectories
3538 # AC_CONFIG_SUBDIRS($subdirs)
3540 # Create the Makefile
3541 # and configure language subdirectories
3542 AC_CONFIG_FILES($all_outputs)
3544 AC_CONFIG_COMMANDS([default],
3546 case ${CONFIG_HEADERS} in
3547 *auto-host.h:config.in*)
3550 # Make sure all the subdirs exist.
3551 for d in $subdirs doc build
3553 test -d $d || mkdir $d
3555 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3556 # bootstrapping and the installation procedure can still use
3557 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3558 # FLAGS_TO_PASS has been modified to solve the problem there.
3559 # This is virtually a duplicate of what happens in configure.lang; we do
3560 # an extra check to make sure this only happens if ln -s can be used.
3563 for d in ${subdirs} ; do
3564 STARTDIR=`${PWDCMD-pwd}`
3566 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3569 $LN_S ../$t $t 2>/dev/null
3576 [subdirs='$subdirs'])