2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
5 # Free Software Foundation, Inc.
7 #This file is part of GCC.
9 #GCC is free software; you can redistribute it and/or modify it under
10 #the terms of the GNU General Public License as published by the Free
11 #Software Foundation; either version 2, or (at your option) any later
14 #GCC is distributed in the hope that it will be useful, but WITHOUT
15 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 #You should have received a copy of the GNU General Public License
20 #along with GCC; see the file COPYING. If not, write to the Free
21 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 # --------------------------------
25 # Initialization and sanity checks
26 # --------------------------------
30 AC_CONFIG_SRCDIR(tree.c)
31 AC_CONFIG_HEADER(auto-host.h:config.in)
33 # Determine the host, build, and target systems
38 # Determine the noncanonical target name, for directory use.
39 _GCC_TOPLEV_NONCANONICAL_TARGET
41 # Determine the target- and build-specific subdirectories
44 # Set program_transform_name
47 # Check for bogus environment variables.
48 # Test if LIBRARY_PATH contains the notation for the current directory
49 # since this would lead to problems installing/building glibc.
50 # LIBRARY_PATH contains the current directory if one of the following
52 # - one of the terminals (":" and ";") is the first or last sign
53 # - two terminals occur directly after each other
54 # - the path contains an element with a dot in it
55 AC_MSG_CHECKING(LIBRARY_PATH variable)
57 case ${LIBRARY_PATH} in
58 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
59 library_path_setting="contains current directory"
62 library_path_setting="ok"
66 AC_MSG_RESULT($library_path_setting)
67 if test "$library_path_setting" != "ok"; then
69 *** LIBRARY_PATH shouldn't contain the current directory when
70 *** building gcc. Please change the environment variable
71 *** and run configure again.])
74 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
75 # since this would lead to problems installing/building glibc.
76 # GCC_EXEC_PREFIX contains the current directory if one of the following
78 # - one of the terminals (":" and ";") is the first or last sign
79 # - two terminals occur directly after each other
80 # - the path contains an element with a dot in it
81 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
83 case ${GCC_EXEC_PREFIX} in
84 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
85 gcc_exec_prefix_setting="contains current directory"
88 gcc_exec_prefix_setting="ok"
92 AC_MSG_RESULT($gcc_exec_prefix_setting)
93 if test "$gcc_exec_prefix_setting" != "ok"; then
95 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
96 *** building gcc. Please change the environment variable
97 *** and run configure again.])
104 # Specify the local prefix
106 AC_ARG_WITH(local-prefix,
107 [ --with-local-prefix=DIR specifies directory to put local include],
108 [case "${withval}" in
109 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
111 *) local_prefix=$with_local_prefix ;;
114 # Default local prefix if it is empty
115 if test x$local_prefix = x; then
116 local_prefix=/usr/local
119 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
120 # passed in by the toplevel make and thus we'd get different behavior
121 # depending on where we built the sources.
123 # Specify the g++ header file directory
124 AC_ARG_WITH(gxx-include-dir,
125 [ --with-gxx-include-dir=DIR
126 specifies directory to put g++ header files],
127 [case "${withval}" in
128 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
130 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
133 if test x${gcc_gxx_include_dir} = x; then
134 if test x${enable_version_specific_runtime_libs} = xyes; then
135 gcc_gxx_include_dir='${libsubdir}/include/c++'
137 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
138 changequote(<<, >>)dnl
139 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
144 AC_ARG_WITH(cpp_install_dir,
145 [ --with-cpp-install-dir=DIR
146 install the user visible C preprocessor in DIR
147 (relative to PREFIX) as well as PREFIX/bin],
148 [if test x$withval = xyes; then
149 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
150 elif test x$withval != xno; then
151 cpp_install_dir=$withval
154 # We would like to our source tree to be readonly. However when releases or
155 # pre-releases are generated, the flex/bison generated files as well as the
156 # various formats of manuals need to be included along with the rest of the
157 # sources. Therefore we have --enable-generated-files-in-srcdir to do
160 AC_MSG_CHECKING([whether to place generated files in the source directory])
161 dnl generated-files-in-srcdir is disabled by default
162 AC_ARG_ENABLE(generated-files-in-srcdir,
163 [ --enable-generated-files-in-srcdir
164 put copies of generated files in source dir
165 intended for creating source tarballs for users
166 without texinfo bison or flex.],
167 generated_files_in_srcdir=$enableval,
168 generated_files_in_srcdir=no)
170 AC_MSG_RESULT($generated_files_in_srcdir)
172 if test "$generated_files_in_srcdir" = "yes"; then
179 # -------------------
180 # Find default linker
181 # -------------------
185 [ --with-gnu-ld arrange to work with GNU ld.],
186 gnu_ld_flag="$with_gnu_ld",
189 # With pre-defined ld
191 [ --with-ld arrange to use the specified ld (full pathname)],
192 DEFAULT_LINKER="$with_ld")
193 if test x"${DEFAULT_LINKER+set}" = x"set"; then
194 if test ! -x "$DEFAULT_LINKER"; then
195 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
196 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
199 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
200 [Define to enable the use of a default linker.])
203 AC_MSG_CHECKING([whether a default linker was specified])
204 if test x"${DEFAULT_LINKER+set}" = x"set"; then
205 if test x"$gnu_ld_flag" = x"no"; then
206 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
208 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
214 # ----------------------
215 # Find default assembler
216 # ----------------------
220 [ --with-gnu-as arrange to work with GNU as],
221 gas_flag="$with_gnu_as",
225 [ --with-as arrange to use the specified as (full pathname)],
226 DEFAULT_ASSEMBLER="$with_as")
227 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
228 if test ! -x "$DEFAULT_ASSEMBLER"; then
229 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
230 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
233 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
234 [Define to enable the use of a default assembler.])
237 AC_MSG_CHECKING([whether a default assembler was specified])
238 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
239 if test x"$gas_flag" = x"no"; then
240 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
242 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
252 # If a non-executable a.out is present (e.g. created by GNU as above even if
253 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
254 # file, even when creating an executable, so an execution test fails.
255 # Remove possible default executable files to avoid this.
257 # FIXME: This really belongs into AC_PROG_CC and can be removed once
258 # Autoconf includes it.
259 rm -f a.out a.exe b.out
261 # Find the native compiler
264 # autoconf is lame and doesn't give us any substitution variable for this.
265 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
266 NO_MINUS_C_MINUS_O=yes
268 OUTPUT_OPTION='-o $@'
270 AC_SUBST(NO_MINUS_C_MINUS_O)
271 AC_SUBST(OUTPUT_OPTION)
273 # -------------------------
274 # Check C compiler features
275 # -------------------------
283 # sizeof(char) is 1 by definition.
284 AC_COMPILE_CHECK_SIZEOF(void *)
285 AC_COMPILE_CHECK_SIZEOF(short)
286 AC_COMPILE_CHECK_SIZEOF(int)
287 AC_COMPILE_CHECK_SIZEOF(long)
288 if test $ac_cv_c_long_long = yes; then
289 AC_COMPILE_CHECK_SIZEOF(long long)
291 if test $ac_cv_c___int64 = yes; then
292 AC_COMPILE_CHECK_SIZEOF(__int64)
295 # ---------------------
296 # Warnings and checking
297 # ---------------------
299 # Check $CC warning features (if it's GCC).
300 # We want to use -pedantic, but we don't want warnings about
303 # So, we only use -pedantic if we can disable those warnings.
306 [whether ${CC} accepts -Wno-long-long],
307 [ac_cv_prog_cc_w_no_long_long],
308 [save_CFLAGS="$CFLAGS"
309 CFLAGS="-Wno-long-long"
310 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
311 [ac_cv_prog_cc_w_no_long_long=yes],
312 [ac_cv_prog_cc_w_no_long_long=no])
313 CFLAGS="$save_CFLAGS"
317 [whether ${CC} accepts -Wno-variadic-macros],
318 [ac_cv_prog_cc_w_no_variadic_macros],
319 [save_CFLAGS="$CFLAGS"
320 CFLAGS="-Wno-variadic-macros"
321 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
322 [ac_cv_prog_cc_w_no_variadic_macros=yes],
323 [ac_cv_prog_cc_w_no_variadic_macros=no])
324 CFLAGS="$save_CFLAGS"
328 if test $ac_cv_prog_cc_w_no_long_long = yes \
329 && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then
330 strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros"
332 AC_SUBST(strict1_warn)
334 # Add -Wold-style-definition if it's accepted
336 [whether ${CC} accepts -Wold-style-definition],
337 [ac_cv_prog_cc_w_old_style_definition],
338 [save_CFLAGS="$CFLAGS"
339 CFLAGS="-Wold-style-definition"
340 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
341 [ac_cv_prog_cc_w_old_style_definition=yes],
342 [ac_cv_prog_cc_w_old_style_definition=no])
343 CFLAGS="$save_CFLAGS"
345 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
346 strict1_warn="${strict1_warn} -Wold-style-definition"
349 # Enable -Werror, period.
350 AC_ARG_ENABLE(werror_always,
351 [ --enable-werror-always enable -Werror always], [],
352 [enable_werror_always=no])
353 if test x${enable_werror_always} = xyes ; then
354 strict1_warn="${strict1_warn} -Werror"
358 # If the native compiler is GCC, we can enable warnings even in stage1.
359 # That's useful for people building cross-compilers, or just running a
362 if test "x$GCC" = "xyes"; then
363 warn_cflags='$(GCC_WARN_CFLAGS)'
365 AC_SUBST(warn_cflags)
367 # Enable -Werror in bootstrap stage2 and later.
368 # Change the default to "no" on release branches.
369 AC_ARG_ENABLE(werror,
370 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
372 if test x$enable_werror = xyes ; then
377 # Enable expensive internal checks
378 AC_ARG_ENABLE(checking,
379 [ --enable-checking[=LIST]
380 enable expensive run-time checks. With LIST,
381 enable only specific categories of checks.
382 Categories are: misc,tree,rtl,rtlflag,gc,gcac,fold;
383 default is misc,tree,gc,rtlflag],
389 ac_gc_always_collect=
391 case "${enableval}" in
392 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
393 ac_rtlflag_checking=1 ;;
395 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
396 set fnord $enableval; shift
401 misc) ac_checking=1 ;;
402 tree) ac_tree_checking=1 ;;
403 rtlflag) ac_rtlflag_checking=1 ;;
404 rtl) ac_rtl_checking=1 ;;
405 gc) ac_gc_checking=1 ;;
406 gcac) ac_gc_always_collect=1 ;;
407 fold) ac_fold_checking=1 ;;
408 valgrind) ac_checking_valgrind=1 ;;
409 *) AC_MSG_ERROR(unknown check category $check) ;;
415 # Enable some checks by default for development versions of GCC
416 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
418 if test x$ac_checking != x ; then
419 AC_DEFINE(ENABLE_CHECKING, 1,
420 [Define if you want more run-time sanity checks. This one gets a grab
421 bag of miscellaneous but relatively cheap checks.])
422 nocommon_flag=-fno-common
424 AC_SUBST(nocommon_flag)
425 if test x$ac_tree_checking != x ; then
426 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
427 [Define if you want all operations on trees (the basic data
428 structure of the front ends) to be checked for dynamic type safety
429 at runtime. This is moderately expensive.])
431 if test x$ac_rtl_checking != x ; then
432 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
433 [Define if you want all operations on RTL (the basic data structure
434 of the optimizer and back end) to be checked for dynamic type safety
435 at runtime. This is quite expensive.])
437 if test x$ac_rtlflag_checking != x ; then
438 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
439 [Define if you want RTL flag accesses to be checked against the RTL
440 codes that are supported for each access macro. This is relatively
443 if test x$ac_gc_checking != x ; then
444 AC_DEFINE(ENABLE_GC_CHECKING, 1,
445 [Define if you want the garbage collector to do object poisoning and
446 other memory allocation checks. This is quite expensive.])
448 if test x$ac_gc_always_collect != x ; then
449 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
450 [Define if you want the garbage collector to operate in maximally
451 paranoid mode, validating the entire heap and collecting garbage at
452 every opportunity. This is extremely expensive.])
454 if test x$ac_fold_checking != x ; then
455 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
456 [Define if you want fold checked that it never destructs its argument.
457 This is quite expensive.])
459 valgrind_path_defines=
462 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
463 dnl # an if statement. This was the source of very frustrating bugs
464 dnl # in converting to autoconf 2.5x!
465 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
467 if test x$ac_checking_valgrind != x ; then
468 # It is certainly possible that there's valgrind but no valgrind.h.
469 # GCC relies on making annotations so we must have both.
470 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
472 [#include <valgrind/memcheck.h>
473 #ifndef VALGRIND_DISCARD
474 #error VALGRIND_DISCARD not defined
476 [gcc_cv_header_valgrind_memcheck_h=yes],
477 [gcc_cv_header_valgrind_memcheck_h=no])
478 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
479 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
481 [#include <memcheck.h>
482 #ifndef VALGRIND_DISCARD
483 #error VALGRIND_DISCARD not defined
485 [gcc_cv_header_memcheck_h=yes],
486 gcc_cv_header_memcheck_h=no)
487 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
488 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
489 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
490 if test "x$valgrind_path" = "x" \
491 || (test $have_valgrind_h = no \
492 && test $gcc_cv_header_memcheck_h = no \
493 && test $gcc_cv_header_valgrind_memcheck_h = no); then
494 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
496 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
497 valgrind_command="$valgrind_path -q"
498 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
499 [Define if you want to run subprograms and generated programs
500 through valgrind (a memory checker). This is extremely expensive.])
501 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
502 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
503 [Define if valgrind's valgrind/memcheck.h header is installed.])
505 if test $gcc_cv_header_memcheck_h = yes; then
506 AC_DEFINE(HAVE_MEMCHECK_H, 1,
507 [Define if valgrind's memcheck.h header is installed.])
510 AC_SUBST(valgrind_path_defines)
511 AC_SUBST(valgrind_command)
513 # Enable code coverage collection
514 AC_ARG_ENABLE(coverage,
515 [ --enable-coverage[=LEVEL]
516 enable compiler\'s code coverage collection.
517 Use to measure compiler performance and locate
518 unused parts of the compiler. With LEVEL, specify
519 optimization. Values are opt, noopt,
521 [case "${enableval}" in
523 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
526 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
529 # a.k.a. --disable-coverage
533 AC_MSG_ERROR(unknown coverage setting $enableval)
537 AC_SUBST(coverage_flags)
539 AC_ARG_ENABLE(gather-detailed-mem-stats,
540 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
541 [enable_gather_detailed_mem_stats=no])
542 if test x$enable_gather_detailed_mem_stats = xyes ; then
543 AC_DEFINE(GATHER_STATISTICS, 1,
544 [Define to enable detailed memory allocation stats gathering.])
547 # -------------------------------
548 # Miscenalleous configure options
549 # -------------------------------
553 [ --with-stabs arrange to use stabs instead of host debug format],
557 # Determine whether or not multilibs are enabled.
558 AC_ARG_ENABLE(multilib,
559 [ --enable-multilib enable library support for multiple ABIs],
560 [], [enable_multilib=yes])
561 AC_SUBST(enable_multilib)
563 # Enable __cxa_atexit for C++.
564 AC_ARG_ENABLE(__cxa_atexit,
565 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
569 # Pass with no value to take the default
570 # Pass with a value to specify a thread package
571 AC_ARG_ENABLE(threads,
572 [ --enable-threads enable thread usage for target GCC
573 --enable-threads=LIB use LIB thread package for target GCC],,
575 # Save in case it gets overwritten in config.gcc
576 enable_threads_flag=$enable_threads
578 AC_ARG_ENABLE(objc-gc,
579 [ --enable-objc-gc enable the use of Boehm's garbage collector with
580 the GNU Objective-C runtime],
581 if test x$enable_objc_gc = xno; then
589 [ --with-dwarf2 force the default debug format to be DWARF 2],
590 dwarf2="$with_dwarf2",
593 AC_ARG_ENABLE(shared,
594 [ --disable-shared don't provide a shared libgcc],
596 case $enable_shared in
600 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
601 for pkg in $enableval; do
602 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
609 ], [enable_shared=yes])
610 AC_SUBST(enable_shared)
613 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
615 case ${with_sysroot} in
616 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
617 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
620 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
621 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
623 if test "x$exec_prefix" = xNONE; then
624 if test "x$prefix" = xNONE; then
625 test_prefix=/usr/local
630 test_prefix=$exec_prefix
632 case ${TARGET_SYSTEM_ROOT} in
633 "${test_prefix}"|"${test_prefix}/"*|\
634 '${exec_prefix}'|'${exec_prefix}/'*)
635 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
636 TARGET_SYSTEM_ROOT_DEFINE="$t"
641 TARGET_SYSTEM_ROOT_DEFINE=
642 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
644 AC_SUBST(TARGET_SYSTEM_ROOT)
645 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
646 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
648 # Build with intermodule optimisations
649 AC_ARG_ENABLE(intermodule,
650 [ --enable-intermodule build the compiler in one step],
651 [case ${enable_intermodule} in
652 yes) onestep="-onestep";;
658 # Sanity check enable_languages in case someone does not run the toplevel
659 # configure # script.
660 AC_ARG_ENABLE(languages,
661 [ --enable-languages=LIST specify which front-ends to build],
662 [case ,${enable_languages}, in
664 # go safe -- we cannot be much sure without the toplevel
666 # analysis of which target libs are present and usable
670 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
675 enable_languages=c,${enable_languages}
678 [enable_languages=c])
681 for lang in ${srcdir}/*/config-lang.in
684 # The odd quoting in the next line works around
685 # an apparent bug in bash 1.12 on linux.
687 ${srcdir}/[*]/config-lang.in) ;;
689 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
690 if test "x$lang_alias" = x
692 echo "$lang doesn't set \$language." 1>&2
695 case ",$enable_languages," in
697 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
705 # -------------------------
706 # Checks for other programs
707 # -------------------------
711 # Find some useful tools
713 # We need awk to run opts.sh (to create options.c and options.h).
714 # Bail out if it's missing.
716 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
724 # See if cmp has --ignore-initial.
725 gcc_AC_PROG_CMP_IGNORE_INITIAL
727 # See if we have the mktemp command.
728 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
730 # Do we have a single-tree copy of texinfo?
731 if test -f $srcdir/../texinfo/Makefile.in; then
732 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
733 gcc_cv_prog_makeinfo_modern=yes
734 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
736 # See if makeinfo has been installed and is modern enough
737 # that we can use it.
738 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
739 [GNU texinfo.* \([0-9][0-9.]*\)],
743 if test $gcc_cv_prog_makeinfo_modern = no; then
745 *** Makeinfo is missing or too old.
746 *** Info documentation will not be built.])
749 BUILD_INFO=info AC_SUBST(BUILD_INFO)
752 # Is pod2man recent enough to regenerate manpages?
753 AC_MSG_CHECKING([for recent Pod::Man])
754 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
756 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
763 dnl Don't use AC_PROG_LEX; we insist on flex.
764 dnl LEXLIB is not useful in gcc.
765 if test -f $srcdir/../flex/skel.c; then
766 FLEX='$(objdir)/../flex/flex'
768 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
772 # The -L switch is so bison can find its skeleton file.
773 if test -f $srcdir/../bison/bison.simple; then
774 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
776 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
779 # --------------------
780 # Checks for C headers
781 # --------------------
783 AC_MSG_CHECKING(for GNU C library)
784 AC_CACHE_VAL(gcc_cv_glibc,
786 [#include <features.h>],[
787 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
788 #error Not a GNU C library system
792 AC_MSG_RESULT($gcc_cv_glibc)
793 if test $gcc_cv_glibc = yes; then
794 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
797 # Need to reject headers which give warnings, so that the -Werror bootstrap
798 # works later. *sigh* This needs to come before all header checks.
803 gcc_AC_HEADER_STDBOOL
806 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
807 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
808 sys/resource.h sys/param.h sys/times.h sys/stat.h \
809 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
811 # Check for thread headers.
812 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
813 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
815 # These tests can't be done till we know if we have limits.h.
823 # Stage specific cflags for build.
829 stage1_cflags="-Wa,-J"
835 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
836 # sources; use -no-cpp-precomp to get to GNU cpp.
837 # Apple's GCC has bugs in designated initializer handling, so disable
839 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
842 AC_SUBST(stage1_cflags)
844 # These libraries may be used by collect2.
845 # We may need a special search path to get them linked.
846 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
848 for libs in '' -lld -lmld \
849 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
850 '-L/usr/lib/cmplrs/cc3.11 -lmld'
853 AC_TRY_LINK_FUNC(ldopen,
854 [gcc_cv_collect2_libs="$libs"; break])
857 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
858 case $gcc_cv_collect2_libs in
860 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
862 AC_SUBST(COLLECT2_LIBS)
864 # When building Ada code on Alpha, we need exc_resume which is usually in
865 # -lexc. So test for it.
868 AC_SEARCH_LIBS(exc_resume, exc)
871 AC_SUBST(GNAT_LIBEXC)
873 # Some systems put ldexp and frexp in libm instead of libc; assume
874 # they're both in the same place. jcf-dump needs them.
877 AC_SEARCH_LIBS(ldexp, m)
882 # Use <inttypes.h> only if it exists,
883 # doesn't clash with <sys/types.h>, and declares intmax_t.
884 AC_MSG_CHECKING(for inttypes.h)
885 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
887 [#include <sys/types.h>
888 #include <inttypes.h>],
890 [gcc_cv_header_inttypes_h=yes],
891 gcc_cv_header_inttypes_h=no)])
892 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
893 if test $gcc_cv_header_inttypes_h = yes; then
894 AC_DEFINE(HAVE_INTTYPES_H, 1,
895 [Define if you have a working <inttypes.h> header file.])
898 dnl Disabled until we have a complete test for buggy enum bitfields.
899 dnl gcc_AC_C_ENUM_BF_UNSIGNED
901 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
902 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
903 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
904 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
907 if test x$ac_cv_func_mbstowcs = xyes; then
908 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
909 [ AC_TRY_RUN([#include <stdlib.h>
915 gcc_cv_func_mbstowcs_works=yes,
916 gcc_cv_func_mbstowcs_works=no,
917 gcc_cv_func_mbstowcs_works=yes)])
918 if test x$gcc_cv_func_mbstowcs_works = xyes; then
919 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
920 [Define this macro if mbstowcs does not crash when its
921 first argument is NULL.])
925 AC_CHECK_TYPE(ssize_t, int)
927 # Try to determine the array type of the second argument of getgroups
928 # for the target system (int or gid_t).
930 if test "${target}" = "${build}"; then
931 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
934 # This condition may need some tweaking. It should include all
935 # targets where the array type of the second argument of getgroups
936 # is int and the type of gid_t is not equivalent to int.
937 *-*-sunos* | *-*-ultrix*)
938 TARGET_GETGROUPS_T=int
941 TARGET_GETGROUPS_T=gid_t
945 AC_SUBST(TARGET_GETGROUPS_T)
947 gcc_AC_FUNC_PRINTF_PTR
948 gcc_AC_FUNC_MMAP_BLACKLIST
952 # Under VMS, vfork works very differently than on Unix. The standard test
953 # won't work, and it isn't easily adaptable. It makes more sense to
955 ac_cv_func_vfork_works=yes
961 # Until we have in-tree GNU iconv:
963 AC_SUBST(LIBICONV_DEP)
967 # We will need to find libiberty.h and ansidecl.h
968 saved_CFLAGS="$CFLAGS"
969 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
970 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
971 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
972 fprintf_unlocked strstr errno snprintf vasprintf \
973 malloc realloc calloc free basename getopt clock, , ,[
974 #include "ansidecl.h"
975 #include "system.h"])
977 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
978 #include "ansidecl.h"
980 #ifdef HAVE_SYS_RESOURCE_H
981 #include <sys/resource.h>
986 #include "ansidecl.h"
988 #ifdef HAVE_SYS_RESOURCE_H
989 #include <sys/resource.h>
991 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
992 [Define to \`long' if <sys/resource.h> doesn't define.])])
994 gcc_AC_CHECK_DECLS(ldgetname, , ,[
995 #include "ansidecl.h"
1002 gcc_AC_CHECK_DECLS(times, , ,[
1003 #include "ansidecl.h"
1005 #ifdef HAVE_SYS_TIMES_H
1006 #include <sys/times.h>
1010 # More time-related stuff.
1011 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1013 #include "ansidecl.h"
1015 #ifdef HAVE_SYS_TIMES_H
1016 #include <sys/times.h>
1018 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1019 if test $ac_cv_struct_tms = yes; then
1020 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1021 [Define if <sys/times.h> defines struct tms.])
1024 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1025 # revisit after autoconf 2.50.
1026 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1028 #include "ansidecl.h"
1030 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1031 if test $gcc_cv_type_clock_t = yes; then
1032 AC_DEFINE(HAVE_CLOCK_T, 1,
1033 [Define if <time.h> defines clock_t.])
1036 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
1038 #include "ansidecl.h"
1041 [if ((uchar *)0) return 0;
1042 if (sizeof(uchar)) return 0;],
1043 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
1044 if test $ac_cv_type_uchar = yes; then
1045 AC_DEFINE(HAVE_UCHAR, 1,
1046 [Define if <sys/types.h> defines \`uchar'.])
1049 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1050 CFLAGS="$saved_CFLAGS"
1052 gcc_AC_INITFINI_ARRAY
1054 # mkdir takes a single argument on some systems.
1055 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1063 # With Setjmp/Longjmp based exception handling.
1064 AC_ARG_ENABLE(sjlj-exceptions,
1065 [ --enable-sjlj-exceptions
1066 arrange to use setjmp/longjmp exception handling],
1067 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1068 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1069 [Define 0/1 to force the choice for exception handling model.])])
1071 if test x$host = x$target; then
1072 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
1074 use_libunwind_default=no
1076 # Use libunwind based exception handling.
1077 AC_ARG_ENABLE(libunwind-exceptions,
1078 [ --enable-libunwind-exceptions force use libunwind for exceptions],
1079 use_libunwind_exceptions=$enableval,
1080 use_libunwind_exceptions=$use_libunwind_default)
1081 if test x"$use_libunwind_exceptions" = xyes; then
1082 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
1083 [Define if gcc should use -lunwind.])
1086 # --------------------------------------------------------
1087 # Build, host, and target specific configuration fragments
1088 # --------------------------------------------------------
1090 # Collect build-machine-specific information.
1091 . ${srcdir}/config.build
1093 # Collect host-machine-specific information.
1094 . ${srcdir}/config.host
1098 # Collect target-machine-specific information.
1099 . ${srcdir}/config.gcc
1101 extra_objs="${host_extra_objs} ${extra_objs}"
1102 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1104 # Default the target-machine variables that were not explicitly set.
1105 if test x"$tm_file" = x
1106 then tm_file=$cpu_type/$cpu_type.h; fi
1108 if test x"$extra_headers" = x
1109 then extra_headers=; fi
1111 if test x$md_file = x
1112 then md_file=$cpu_type/$cpu_type.md; fi
1114 if test x$out_file = x
1115 then out_file=$cpu_type/$cpu_type.c; fi
1117 if test x"$tmake_file" = x
1118 then tmake_file=$cpu_type/t-$cpu_type
1121 if test x"$dwarf2" = xyes
1122 then tm_file="$tm_file tm-dwarf2.h"
1125 # Say what files are being used for the output code and MD file.
1126 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1127 echo "Using \`$srcdir/config/$md_file' as machine description file."
1129 # If any of the xm_file variables contain nonexistent files, warn
1130 # about them and drop them.
1133 for x in $build_xm_file; do
1134 if test -f $srcdir/config/$x
1136 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1142 for x in $host_xm_file; do
1143 if test -f $srcdir/config/$x
1145 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1151 for x in $xm_file; do
1152 if test -f $srcdir/config/$x
1154 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1160 for f in $tm_file; do
1163 if test $count = ax; then
1164 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1166 echo "Using the following target machine macro files:"
1167 for f in $tm_file; do
1168 echo " $srcdir/config/$f"
1172 if test x$need_64bit_hwint = xyes; then
1173 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1174 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1178 for f in $host_xm_file; do
1181 if test $count = a; then
1183 elif test $count = ax; then
1184 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1186 echo "Using the following host machine macro files:"
1187 for f in $host_xm_file; do
1188 echo " $srcdir/config/$f"
1191 echo "Using ${out_host_hook_obj} for host machine hooks."
1193 if test "$host_xm_file" != "$build_xm_file"; then
1195 for f in $build_xm_file; do
1198 if test $count = a; then
1200 elif test $count = ax; then
1201 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1203 echo "Using the following build machine macro files:"
1204 for f in $build_xm_file; do
1205 echo " $srcdir/config/$f"
1214 # Check if a valid thread package
1215 case ${enable_threads_flag} in
1218 target_thread_file='single'
1222 target_thread_file='single'
1224 aix | dce | gnat | irix | posix | rtems | \
1225 single | solaris | vxworks | win32 )
1226 target_thread_file=${enable_threads_flag}
1229 echo "${enable_threads_flag} is an unknown thread package" 1>&2
1234 if test x${thread_file} = x; then
1235 # No thread file set by target-specific clauses in config.gcc,
1236 # so use file chosen by default logic above
1237 thread_file=${target_thread_file}
1240 # Make gthr-default.h if we have a thread file.
1242 if test $thread_file != single; then
1243 rm -f gthr-default.h
1244 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1245 gthread_flags=-DHAVE_GTHR_DEFAULT
1247 AC_SUBST(gthread_flags)
1253 if test x$enable___cxa_atexit = xyes || \
1254 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1255 AC_CHECK_FUNC(__cxa_atexit,
1256 [AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1257 [Define if you want to use __cxa_atexit, rather than atexit, to
1258 register C++ destructors for local statics and global objects.
1259 This is essential for fully standards-compliant handling of
1260 destructors, but requires __cxa_atexit in libc.])],
1261 echo "__cxa_atexit can't be enabled on this target")
1264 # Look for a file containing extra machine modes.
1265 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1266 extra_modes_file='$(srcdir)'/config/${extra_modes}
1267 AC_SUBST(extra_modes_file)
1268 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1269 [Define to the name of a file containing a list of extra machine modes
1270 for this architecture.])
1273 # auto-host.h is the file containing items generated by autoconf and is
1274 # the first file included by config.h.
1275 # If host=build, it is correct to have bconfig include auto-host.h
1276 # as well. If host!=build, we are in error and need to do more
1277 # work to find out the build config parameters.
1278 if test x$host = x$build
1280 build_auto=auto-host.h
1283 # We create a subdir, then run autoconf in the subdir.
1284 # To prevent recursion we set host and build for the new
1285 # invocation of configure to the build for this invocation
1292 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1293 *) realsrcdir=../${srcdir};;
1295 saved_CFLAGS="${CFLAGS}"
1296 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1297 ${realsrcdir}/configure \
1298 --enable-languages=${enable_languages-all} \
1299 --target=$target_alias --host=$build_alias --build=$build_alias
1300 CFLAGS="${saved_CFLAGS}"
1302 # We just finished tests for the build machine, so rename
1303 # the file auto-build.h in the gcc directory.
1304 mv auto-host.h ../auto-build.h
1307 build_auto=auto-build.h
1308 FORBUILD=../${build_subdir}
1312 tm_file="${tm_file} defaults.h"
1313 tm_p_file="${tm_p_file} tm-preds.h"
1314 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1315 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1316 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1317 # put this back in temporarily.
1318 xm_file="ansidecl.h ${xm_file}"
1324 # Get the version trigger filename from the toplevel
1325 if test "${with_gcc_version_trigger+set}" = set; then
1326 gcc_version_trigger=$with_gcc_version_trigger
1328 gcc_version_trigger=${srcdir}/version.c
1331 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1332 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1334 # Compile in configure arguments.
1335 if test -f configargs.h ; then
1336 # Being re-configured.
1337 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1338 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1340 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1343 # Double all backslashes and backslash all quotes to turn
1344 # gcc_config_arguments into a C string.
1345 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1346 $gcc_config_arguments
1348 gcc_config_arguments_str=`cat conftest.out`
1351 cat > configargs.h <<EOF
1352 /* Generated automatically. */
1353 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1354 static const char thread_model[] = "$thread_file";
1356 static const struct {
1357 const char *name, *value;
1358 } configure_default_options[] = $configure_default_options;
1362 # Internationalization
1364 VERSION="$gcc_version"
1368 ZW_GNU_GETTEXT_SISTER_DIR
1370 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1371 # -liconv on the link line twice.
1372 case "$LIBINTL" in *$LIBICONV*)
1376 # Windows32 Registry support for specifying GCC installation paths.
1377 AC_ARG_ENABLE(win32-registry,
1378 [ --disable-win32-registry
1379 disable lookup of installation paths in the
1380 Registry on Windows hosts
1381 --enable-win32-registry enable registry lookup (default)
1382 --enable-win32-registry=KEY
1383 use KEY instead of GCC version as the last portion
1384 of the registry key],,)
1386 win32 | pe | cygwin* | mingw32* | uwin*)
1387 AC_MSG_CHECKING(whether windows registry support is requested)
1388 if test "x$enable_win32_registry" != xno; then
1389 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1390 [Define to 1 if installation paths should be looked up in Windows32
1391 Registry. Ignored on non windows32 hosts.])
1393 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1398 # Check if user specified a different registry key.
1399 case "x${enable_win32_registry}" in
1402 gcc_cv_win32_registry_key="$VERSION"
1405 # no registry lookup.
1406 gcc_cv_win32_registry_key=''
1409 # user-specified key.
1410 gcc_cv_win32_registry_key="$enable_win32_registry"
1414 if test "x$enable_win32_registry" != xno; then
1415 AC_MSG_CHECKING(registry key on windows hosts)
1416 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1417 [Define to be the last portion of registry key on windows hosts.])
1418 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1423 # Get an absolute path to the GCC top-level source directory
1424 holddir=`${PWDCMD-pwd}`
1426 topdir=`${PWDCMD-pwd}`
1429 # Conditionalize the makefile for this host machine.
1431 for f in ${host_xmake_file}
1433 if test -f ${srcdir}/config/$f
1435 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1439 # Conditionalize the makefile for this target machine.
1441 for f in ${tmake_file}
1443 if test -f ${srcdir}/config/$f
1445 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1448 tmake_file="${tmake_file_}"
1450 symbolic_link='ln -s'
1452 # If the host doesn't support symlinks, modify CC in
1453 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1454 # Otherwise, we can use "CC=$(CC)".
1456 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1458 cc_set_by_configure="\$(CC)"
1459 quoted_cc_set_by_configure="\$(CC)"
1460 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1461 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1464 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1466 symbolic_link="cp -p"
1470 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1471 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1472 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1473 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1477 out_object_file=`basename $out_file .c`.o
1481 for f in $tm_file; do
1484 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1485 tm_include_list="${tm_include_list} $f"
1488 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1489 tm_include_list="${tm_include_list} config/$f"
1496 for f in $tm_p_file; do
1499 tm_p_file_list="${tm_p_file_list} $f"
1500 tm_p_include_list="${tm_p_include_list} $f"
1503 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1504 tm_p_include_list="${tm_p_include_list} config/$f"
1510 for f in $xm_file; do
1513 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1514 xm_include_list="${xm_include_list} $f"
1517 xm_file_list="${xm_file_list} $f"
1518 xm_include_list="${xm_include_list} $f"
1521 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1522 xm_include_list="${xm_include_list} config/$f"
1528 host_xm_include_list=
1529 for f in $host_xm_file; do
1532 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1533 host_xm_include_list="${host_xm_include_list} $f"
1536 host_xm_file_list="${host_xm_file_list} $f"
1537 host_xm_include_list="${host_xm_include_list} $f"
1540 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1541 host_xm_include_list="${host_xm_include_list} config/$f"
1547 for f in $build_xm_file; do
1550 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1551 build_xm_include_list="${build_xm_include_list} $f"
1553 auto-build.h | auto-host.h )
1554 build_xm_file_list="${build_xm_file_list} $f"
1555 build_xm_include_list="${build_xm_include_list} $f"
1558 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1559 build_xm_include_list="${build_xm_include_list} config/$f"
1564 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1565 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1566 CROSS= AC_SUBST(CROSS)
1567 ALL=all.internal AC_SUBST(ALL)
1568 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1569 if test x$host != x$target
1571 CROSS="-DCROSS_COMPILE"
1573 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1574 case "$host","$target" in
1575 # Darwin crosses can use the host system's libraries and headers,
1576 # because of the fat library support. Of course, it must be the
1577 # same version of Darwin on both sides. Allow the user to
1578 # just say --target=foo-darwin without a version number to mean
1579 # "the version on this system".
1580 *-*-darwin*,*-*-darwin*)
1581 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1582 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1583 if test $hostos = $targetos -o $targetos = darwin ; then
1585 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1590 i?86-*-*,x86_64-*-* \
1591 | powerpc*-*-*,powerpc64*-*-*)
1592 CROSS="$CROSS -DNATIVE_CROSS" ;;
1594 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1595 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1596 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1599 # If this is a cross-compiler that does not
1600 # have its own set of headers then define
1603 # If this is using newlib, without having the headers available now,
1604 # then define inhibit_libc in LIBGCC2_CFLAGS.
1605 # This prevents libgcc2 from containing any code which requires libc
1608 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1609 test x$with_newlib = xyes ; } &&
1610 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1611 inhibit_libc=-Dinhibit_libc
1613 AC_SUBST(inhibit_libc)
1615 # When building gcc with a cross-compiler, we need to adjust things so
1616 # that the generator programs are still built with the native compiler.
1617 # Also, we cannot run fixincludes or fix-header.
1619 # These are the normal (build=host) settings:
1620 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1621 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1622 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1623 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1625 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1627 # Possibly disable fixproto, on a per-target basis.
1628 case ${use_fixproto} in
1633 STMP_FIXPROTO=stmp-fixproto
1636 AC_SUBST(STMP_FIXPROTO)
1638 # And these apply if build != host, or we are generating coverage data
1639 if test x$build != x$host || test "x$coverage_flags" != x
1642 BUILD_PREFIX_1=build-
1643 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1645 if test "x$TARGET_SYSTEM_ROOT" = x; then
1651 # Expand extra_headers to include complete path.
1652 # This substitutes for lots of t-* files.
1654 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1655 for file in ${extra_headers} ; do
1656 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1659 # Add a definition of USE_COLLECT2 if system wants one.
1660 case $use_collect2 in
1661 no) use_collect2= ;;
1664 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1665 xm_defines="${xm_defines} USE_COLLECT2"
1669 # ---------------------------
1670 # Assembler & linker features
1671 # ---------------------------
1673 # Identify the assembler which will work hand-in-glove with the newly
1674 # built GCC, so that we can examine its features. This is the assembler
1675 # which will be driven by the driver program.
1677 # If build != host, and we aren't building gas in-tree, we identify a
1678 # build->target assembler and hope that it will have the same features
1679 # as the host->target assembler we'll be using.
1680 AC_MSG_CHECKING(what assembler to use)
1683 gcc_cv_gas_major_version=
1684 gcc_cv_gas_minor_version=
1685 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1686 if test -x "$DEFAULT_ASSEMBLER"; then
1687 gcc_cv_as="$DEFAULT_ASSEMBLER"
1688 elif test -x "$AS"; then
1690 elif test -x as$host_exeext; then
1691 # Build using assembler in the current directory.
1692 gcc_cv_as=./as$host_exeext
1693 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1694 && test -f ../gas/Makefile; then
1695 # Single tree build which includes gas.
1697 _gcc_COMPUTE_GAS_VERSION
1698 rm -f as$host_exeext
1699 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1700 in_tree_gas_is_elf=no
1701 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1702 || (grep 'obj_format = multi' ../gas/Makefile \
1703 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1705 in_tree_gas_is_elf=yes
1709 if test "x$gcc_cv_as" = x; then
1710 # Search the same directories that the installed compiler will
1711 # search. Else we may find the wrong assembler and lose. If we
1712 # do not find a suitable assembler binary, then try the user's
1715 # Also note we have to check MD_EXEC_PREFIX before checking the
1716 # user's path. Unfortunately, there is no good way to get at the
1717 # value of MD_EXEC_PREFIX here. So we do a brute force search
1718 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1719 # to be fixed as part of the make/configure rewrite too.
1721 if test "x$exec_prefix" = xNONE; then
1722 if test "x$prefix" = xNONE; then
1723 test_prefix=/usr/local
1728 test_prefix=$exec_prefix
1731 # If the loop below does not find an assembler, then use whatever
1732 # one we can find in the users's path.
1734 if test "x$program_prefix" != xNONE; then
1735 gcc_cv_as=${program_prefix}as$host_exeext
1737 gcc_cv_as=`echo as | sed "${program_transform_name}"`$host_exeext
1740 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1741 $test_prefix/libexec/gcc/$target_noncanonical \
1742 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1743 /usr/lib/gcc/$target_noncanonical \
1744 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1745 $test_prefix/$target_noncanonical/bin"
1747 if test x$host = x$target; then
1748 test_dirs="$test_dirs \
1753 /bsd43/usr/lib/cmplrs/cc \
1754 /usr/cross64/usr/bin \
1755 /usr/lib/cmplrs/cc \
1756 /sysv/usr/lib/cmplrs/cc \
1757 /svr4/usr/lib/cmplrs/cc \
1761 for dir in $test_dirs; do
1762 if test -x $dir/as$host_exeext; then
1763 gcc_cv_as=$dir/as$host_exeext
1768 case $in_tree_gas in
1770 AC_MSG_RESULT("newly built gas")
1773 AC_MSG_RESULT($gcc_cv_as)
1777 # Identify the linker which will work hand-in-glove with the newly
1778 # built GCC, so that we can examine its features. This is the linker
1779 # which will be driven by the driver program.
1781 # If build != host, and we aren't building gas in-tree, we identify a
1782 # build->target linker and hope that it will have the same features
1783 # as the host->target linker we'll be using.
1784 AC_MSG_CHECKING(what linker to use)
1787 gcc_cv_gld_major_version=
1788 gcc_cv_gld_minor_version=
1789 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1790 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1791 if test -x "$DEFAULT_LINKER"; then
1792 gcc_cv_ld="$DEFAULT_LINKER"
1793 elif test -x "$LD_FOR_TARGET"; then
1794 gcc_cv_ld="$LD_FOR_TARGET"
1795 elif test -x "$LD" && test x$host = x$target; then
1797 elif test -x collect-ld$host_exeext; then
1798 # Build using linker in the current directory.
1799 gcc_cv_ld=./collect-ld$host_exeext
1800 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1801 && test -f ../ld/Makefile; then
1802 # Single tree build which includes ld.
1804 in_tree_ld_is_elf=no
1805 if (grep 'EMUL = .*elf' ../ld/Makefile \
1806 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1807 in_tree_ld_is_elf=yes
1809 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
1812 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1814 if test x$gcc_cv_gld_version != x; then
1819 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1820 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1822 rm -f collect-ld$host_exeext
1823 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1827 if test "x$gcc_cv_ld" = x; then
1828 # Search the same directories that the installed compiler will
1829 # search. Else we may find the wrong linker and lose. If we
1830 # do not find a suitable linker binary, then try the user's
1833 # Also note we have to check MD_EXEC_PREFIX before checking the
1834 # user's path. Unfortunately, there is no good way to get at the
1835 # value of MD_EXEC_PREFIX here. So we do a brute force search
1836 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1837 # to be fixed as part of the make/configure rewrite too.
1839 if test "x$exec_prefix" = xNONE; then
1840 if test "x$prefix" = xNONE; then
1841 test_prefix=/usr/local
1846 test_prefix=$exec_prefix
1849 # If the loop below does not find an linker, then use whatever
1850 # one we can find in the users's path.
1852 if test "x$program_prefix" != xNONE; then
1853 gcc_cv_ld=${program_prefix}ld$host_exeext
1855 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$host_exeext
1858 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1859 $test_prefix/libexec/gcc/$target_noncanonical \
1860 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1861 /usr/lib/gcc/$target_noncanonical \
1862 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1863 $test_prefix/$target_noncanonical/bin"
1865 if test x$host = x$target; then
1866 test_dirs="$test_dirs \
1871 /bsd43/usr/lib/cmplrs/cc \
1872 /usr/cross64/usr/bin \
1873 /usr/lib/cmplrs/cc \
1874 /sysv/usr/lib/cmplrs/cc \
1875 /svr4/usr/lib/cmplrs/cc \
1879 for dir in $test_dirs; do
1880 if test -x $dir/ld$host_exeext; then
1881 gcc_cv_ld=$dir/ld$host_exeext
1888 AC_MSG_RESULT("newly built ld")
1891 AC_MSG_RESULT($gcc_cv_ld)
1895 # Figure out what nm we will be using.
1896 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1897 AC_MSG_CHECKING(what nm to use)
1899 if test -x nm$host_exeext; then
1900 gcc_cv_nm=./nm$host_exeext
1901 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1902 && test -f ../binutils/Makefile; then
1903 # Single tree build which includes binutils.
1905 gcc_cv_nm=./nm$host_exeext
1906 rm -f nm$host_exeext
1907 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1908 elif test "x$program_prefix" != xNONE; then
1909 gcc_cv_nm=${program_prefix}nm$host_exeext
1911 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$host_exeext
1914 yes) AC_MSG_RESULT("newly built nm") ;;
1915 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1918 # Figure out what objdump we will be using.
1919 AC_MSG_CHECKING(what objdump to use)
1921 if test -x objdump$host_exeext; then
1922 gcc_cv_objdump=./objdump$host_exeext
1923 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1924 && test -f ../binutils/Makefile; then
1925 # Single tree build which includes binutils.
1927 gcc_cv_objdump=./objdump$host_exeext
1928 rm -f objdump$host_exeext
1929 $symbolic_link ../binutils/objdump$host_exeext \
1930 objdump$host_exeext 2>/dev/null
1931 elif test "x$program_prefix" != xNONE; then
1932 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1934 gcc_cv_objdump=`echo objdump | \
1935 sed "${program_transform_name}"`$host_exeext
1937 case $in_tree_objdump in
1938 yes) AC_MSG_RESULT("newly built objdump") ;;
1939 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1942 # Figure out what assembler alignment features are present.
1943 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1947 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1948 [Define if your assembler supports .balign and .p2align.])])
1950 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1953 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1954 [Define if your assembler supports specifying the maximum number
1955 of bytes to skip when using the GAS .p2align command.])])
1957 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1959 [conftest_label1: .word 0
1961 conftest_label2: .word 0
1963 [if test x$gcc_cv_nm != x; then
1964 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1965 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1966 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1968 else gcc_cv_as_subsection_m1=yes
1970 rm -f conftest.nm1 conftest.nm2
1972 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1973 [Define if your assembler supports .subsection and .subsection -1 starts
1974 emitting at the beginning of your section.])])
1976 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1979 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1981 # .hidden needs to be supported in both the assembler and the linker,
1982 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1983 # This is irritatingly difficult to feature test for; we have to check the
1984 # date string after the version number. If we've got an in-tree
1985 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1987 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1988 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1993 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1994 [if test $in_tree_ld = yes ; then
1996 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1997 && test $in_tree_ld_is_elf = yes; then
1998 gcc_cv_ld_hidden=yes
2001 gcc_cv_ld_hidden=yes
2002 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2003 if echo "$ld_ver" | grep GNU > /dev/null; then
2005 ld_vers=`echo $ld_ver | sed -n \
2006 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2007 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2008 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2009 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2010 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2011 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2012 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2013 if test 0"$ld_date" -lt 20020404; then
2014 if test -n "$ld_date"; then
2015 # If there was date string, but was earlier than 2002-04-04, fail
2017 elif test -z "$ld_vers"; then
2018 # If there was no date string nor ld version number, something is wrong
2021 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2022 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2023 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2024 test -z "$ld_vers_patch" && ld_vers_patch=0
2025 if test "$ld_vers_major" -lt 2; then
2027 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2028 gcc_cv_ld_hidden="no"
2029 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2037 hppa64*-*-hpux* | ia64*-*-hpux*)
2038 gcc_cv_ld_hidden=yes
2046 libgcc_visibility=no
2047 AC_SUBST(libgcc_visibility)
2048 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2049 libgcc_visibility=yes
2050 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2051 [Define if your assembler and linker support .hidden.])
2054 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2055 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2063 [# GAS versions before 2.11 do not support uleb128,
2064 # despite appearing to.
2065 # ??? There exists an elf-specific test that will crash
2066 # the assembler. Perhaps it's better to figure out whether
2067 # arbitrary sections are supported and try the test.
2068 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2069 if echo "$as_ver" | grep GNU > /dev/null; then
2071 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2072 as_major=`echo $as_ver | sed 's/\..*//'`
2073 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2075 if test $as_major -eq 2 && test $as_minor -lt 11
2077 else gcc_cv_as_leb128=yes
2080 [AC_DEFINE(HAVE_AS_LEB128, 1,
2081 [Define if your assembler supports .sleb128 and .uleb128.])])
2083 # GAS versions up to and including 2.11.0 may mis-optimize
2085 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2093 .section .eh_frame,"aw",@progbits
2095 .4byte .LECIE1-.LSCIE1
2109 .4byte .LEFDE1-.LASFDE1
2111 .4byte .LASFDE1-__FRAME_BEGIN__
2119 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2120 cat > conftest.lit <<EOF
2121 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2122 0010 01000000 12000000 18000000 00000000 ................
2123 0020 08000000 04080000 0044 .........D @&t@
2125 cat > conftest.big <<EOF
2126 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2127 0010 00000001 00000012 00000018 00000000 ................
2128 0020 00000008 04000000 0844 .........D @&t@
2130 # If the assembler didn't choke, and we can objdump,
2131 # and we got the correct data, then succeed.
2132 if test x$gcc_cv_objdump != x \
2133 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2134 | tail -3 > conftest.got \
2135 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2136 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2138 gcc_cv_as_eh_frame=yes
2139 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2140 gcc_cv_as_eh_frame=buggy
2142 # Uh oh, what do we do now?
2143 gcc_cv_as_eh_frame=no
2146 if test $gcc_cv_as_eh_frame = buggy; then
2147 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2148 [Define if your assembler mis-optimizes .eh_frame data.])
2151 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2152 [elf,2,12,0], [--fatal-warnings],
2153 [.section .rodata.str, "aMS", @progbits, 1])
2154 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2155 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2156 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2158 # Thread-local storage - the check is heavily parametrized.
2167 .section ".tdata","awT",@progbits
2170 ldq $27,__tls_get_addr($29) !literal!1
2171 lda $16,foo($29) !tlsgd!1
2172 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2173 ldq $27,__tls_get_addr($29) !literal!2
2174 lda $16,foo($29) !tlsldm!2
2175 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2176 ldq $1,foo($29) !gotdtprel
2177 ldah $2,foo($29) !dtprelhi
2178 lda $3,foo($2) !dtprello
2179 lda $4,foo($29) !dtprel
2180 ldq $1,foo($29) !gottprel
2181 ldah $2,foo($29) !tprelhi
2182 lda $3,foo($2) !tprello
2183 lda $4,foo($29) !tprel'
2186 tls_as_opt=--fatal-warnings
2190 .section ".tdata","awT",@progbits
2194 leal foo@TLSGD(,%ebx,1), %eax
2195 leal foo@TLSLDM(%ebx), %eax
2196 leal foo@DTPOFF(%eax), %edx
2197 movl foo@GOTTPOFF(%ebx), %eax
2198 subl foo@GOTTPOFF(%ebx), %eax
2199 addl foo@GOTNTPOFF(%ebx), %eax
2200 movl foo@INDNTPOFF, %eax
2201 movl $foo@TPOFF, %eax
2202 subl $foo@TPOFF, %eax
2203 leal foo@NTPOFF(%ecx), %eax'
2206 tls_as_opt=--fatal-warnings
2210 .section ".tdata","awT",@progbits
2214 leaq foo@TLSGD(%rip), %rdi
2215 leaq foo@TLSLD(%rip), %rdi
2216 leaq foo@DTPOFF(%rax), %rdx
2217 movq foo@GOTTPOFF(%rip), %rax
2218 movq $foo@TPOFF, %rax'
2221 tls_as_opt=--fatal-warnings
2225 .section ".tdata","awT",@progbits
2228 addl r16 = @ltoff(@dtpmod(foo#)), gp
2229 addl r17 = @ltoff(@dtprel(foo#)), gp
2230 addl r18 = @ltoff(@tprel(foo#)), gp
2231 addl r19 = @dtprel(foo#), gp
2232 adds r21 = @dtprel(foo#), r13
2233 movl r23 = @dtprel(foo#)
2234 addl r20 = @tprel(foo#), gp
2235 adds r22 = @tprel(foo#), r13
2236 movl r24 = @tprel(foo#)'
2239 tls_as_opt=--fatal-warnings
2243 .section ".tdata","awT",@progbits
2251 addi 3,31,ld0@got@tlsgd
2253 addi 3,31,x1@got@tlsld
2256 addis 9,3,x2@dtprel@ha
2257 addi 9,9,x2@dtprel@l
2258 lwz 9,x3@got@tprel(31)
2261 addis 9,2,x2@tprel@ha
2262 addi 9,9,x2@tprel@l'
2265 tls_as_opt="-a32 --fatal-warnings"
2269 .section ".tdata","awT",@progbits
2277 addi 3,2,ld0@got@tlsgd
2283 addi 3,2,x1@got@tlsld
2289 addis 9,3,x2@dtprel@ha
2290 addi 9,9,x2@dtprel@l
2293 ld 9,x3@got@dtprel(2)
2299 tls_as_opt="-a64 --fatal-warnings"
2303 .section ".tdata","awT",@progbits
2312 l %r1,foo@GOTNTPOFF(%r12)
2313 l %r1,0(%r1):tls_load:foo
2314 bas %r14,0(%r1,%r13):tls_gdcall:foo
2315 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2318 tls_as_opt="-m31 --fatal-warnings"
2322 .section ".tdata","awT",@progbits
2330 lg %r1,foo@GOTNTPOFF(%r12)
2331 larl %r1,foo@INDNTPOFF
2332 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2333 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2336 tls_as_opt="-m64 -Aesame --fatal-warnings"
2338 sh-*-* | sh[34]-*-*)
2340 .section ".tdata","awT",@progbits
2350 tls_as_opt=--fatal-warnings
2354 sparc*-sun-solaris2.*)
2361 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2363 .section ".tdata",#alloc,#write,#tls
2366 sethi %tgd_hi22(foo), %o0
2367 add %o0, %tgd_lo10(foo), %o1
2368 add %l7, %o1, %o0, %tgd_add(foo)
2369 call __tls_get_addr, %tgd_call(foo)
2370 sethi %tldm_hi22(foo), %l1
2371 add %l1, %tldm_lo10(foo), %l2
2372 add %l7, %l2, %o0, %tldm_add(foo)
2373 call __tls_get_addr, %tldm_call(foo)
2374 sethi %tldo_hix22(foo), %l3
2375 xor %l3, %tldo_lox10(foo), %l4
2376 add %o0, %l4, %l5, %tldo_add(foo)
2377 sethi %tie_hi22(foo), %o3
2378 add %o3, %tie_lo10(foo), %o3
2379 ld [%l7 + %o3], %o2, %tie_ld(foo)
2380 add %g7, %o2, %o4, %tie_add(foo)
2381 sethi %tle_hix22(foo), %l1
2382 xor %l1, %tle_lox10(foo), %o5
2383 ld [%g7 + %o5], %o1'
2388 .section ".tdata","awT",@progbits
2391 sethi %tgd_hi22(foo), %o0
2392 add %o0, %tgd_lo10(foo), %o1
2393 add %l7, %o1, %o0, %tgd_add(foo)
2394 call __tls_get_addr, %tgd_call(foo)
2395 sethi %tldm_hi22(foo), %l1
2396 add %l1, %tldm_lo10(foo), %l2
2397 add %l7, %l2, %o0, %tldm_add(foo)
2398 call __tls_get_addr, %tldm_call(foo)
2399 sethi %tldo_hix22(foo), %l3
2400 xor %l3, %tldo_lox10(foo), %l4
2401 add %o0, %l4, %l5, %tldo_add(foo)
2402 sethi %tie_hi22(foo), %o3
2403 add %o3, %tie_lo10(foo), %o3
2404 ld [%l7 + %o3], %o2, %tie_ld(foo)
2405 add %g7, %o2, %o4, %tie_add(foo)
2406 sethi %tle_hix22(foo), %l1
2407 xor %l1, %tle_lox10(foo), %o5
2408 ld [%g7 + %o5], %o1'
2411 tls_as_opt="-32 --fatal-warnings"
2416 if test -z "$tls_first_major"; then
2417 : # If we don't have a check, assume no support.
2419 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2420 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2421 [AC_DEFINE(HAVE_AS_TLS, 1,
2422 [Define if your assembler supports thread-local storage.])])
2425 # Target-specific assembler checks.
2428 # All TARGET_ABI_OSF targets.
2429 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2430 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2431 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2434 extbl $3, $2, $3 !lituse_bytoff!1
2435 ldq $2, a($29) !literal!1
2436 ldq $4, b($29) !literal!2
2437 ldq_u $3, 0($2) !lituse_base!1
2438 ldq $27, f($29) !literal!5
2439 jsr $26, ($27), f !lituse_jsr!5
2440 ldah $29, 0($26) !gpdisp!3
2441 lda $0, c($29) !gprel
2442 ldah $1, d($29) !gprelhigh
2443 lda $1, d($1) !gprellow
2444 lda $29, 0($29) !gpdisp!3],,
2445 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2446 [Define if your assembler supports explicit relocations.])])
2450 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2451 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2452 [-no-mul-bug-abort], [.text],,
2453 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2454 [Define if your assembler supports the -no-mul-bug-abort option.])])
2458 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2459 [.register %g2, #scratch],,
2460 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2461 [Define if your assembler supports .register.])])
2463 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2465 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2466 [Define if your assembler supports -relax option.])])
2468 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2469 gcc_cv_as_sparc_ua_pcrel,,
2477 .uaword %r_disp32(foo)],
2478 [if test x$gcc_cv_ld != x \
2479 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2480 gcc_cv_as_sparc_ua_pcrel=yes
2483 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2484 [Define if your assembler and linker support unaligned PC relative relocs.])
2486 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2487 gcc_cv_as_sparc_ua_pcrel_hidden,,
2492 .uaword %r_disp32(foo)
2493 .byte 0x32, 0x33, 0x34
2498 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2499 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2500 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2501 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2502 if $gcc_cv_objdump -R conftest 2> /dev/null \
2503 | grep 'DISP32' > /dev/null 2>&1; then
2506 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2510 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2511 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2512 ]) # unaligned pcrel relocs
2514 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2515 gcc_cv_as_sparc_offsetable_lo10,,
2518 or %g1, %lo(ab) + 12, %g1
2519 or %g1, %lo(ab + 12), %g1],
2520 [if test x$gcc_cv_objdump != x \
2521 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2522 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2523 gcc_cv_as_offsetable_lo10=yes
2525 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2526 [Define if your assembler supports offsetable %lo().])])
2530 i[34567]86-*-* | x86_64-*-*)
2532 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2533 gcc_cv_as_ix86_filds_fists,
2534 [2,9,0],, [filds mem; fists mem],,
2535 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2536 [Define if your assembler uses the new HImode fild and fist notation.])])
2538 gcc_GAS_CHECK_FEATURE([cmov syntax],
2539 gcc_cv_as_ix86_cmov_sun_syntax,,,
2540 [cmovl.l %edx, %eax],,
2541 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2542 [Define if your assembler supports the Sun syntax for cmov.])])
2544 # This one is used unconditionally by i386.[ch]; it is to be defined
2545 # to 1 if the feature is present, 0 otherwise.
2546 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2547 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2553 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2554 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2555 [Define true if the assembler supports '.long foo@GOTOFF'.])
2559 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2560 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2562 addl r15 = @ltoffx(x#), gp
2564 ld8.mov r16 = [[r15]], x#],,
2565 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2566 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2572 *-*-aix*) conftest_s=' .csect .text[[PR]]
2574 *-*-darwin*) conftest_s=' .text
2576 *) conftest_s=' .text
2580 gcc_GAS_CHECK_FEATURE([mfcr field support],
2581 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2583 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2584 [Define if your assembler supports mfcr field.])])
2588 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2589 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2590 [ lw $4,%gp_rel(foo)($4)],,
2591 [if test x$target_cpu_default = x
2592 then target_cpu_default=MASK_EXPLICIT_RELOCS
2593 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2598 # ??? Not all targets support dwarf2 debug_line, even within a version
2599 # of gas. Moreover, we need to emit a valid instruction to trigger any
2600 # info to the output file. So, as supported targets are added to gas 2.11,
2601 # add some instruction here to (also) show we expect this might work.
2602 # ??? Once 2.11 is released, probably need to add first known working
2603 # version to the per-target configury.
2605 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2606 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2607 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2610 ia64*-*-* | s390*-*-*)
2617 if test x"$insn" != x; then
2619 .file 1 \"conftest.s\"
2622 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2623 gcc_cv_as_dwarf2_debug_line,
2624 [elf,2,11,0],, [$conftest_s],
2625 [# ??? This fails with non-gnu grep. Maybe use objdump?
2626 if grep debug_line conftest.o > /dev/null 2>&1; then
2627 gcc_cv_as_dwarf2_debug_line=yes
2630 # The .debug_line file table must be in the exact order that
2631 # we specified the files, since these indices are also used
2632 # by DW_AT_decl_file. Approximate this test by testing if
2633 # the assembler bitches if the same index is assigned twice.
2634 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2635 gcc_cv_as_dwarf2_file_buggy,,,
2639 if test $gcc_cv_as_dwarf2_debug_line = yes \
2640 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2641 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2642 [Define if your assembler supports dwarf2 .file/.loc directives,
2643 and preserves file table indices exactly as given.])
2646 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2647 gcc_cv_as_gdwarf2_flag,
2648 [elf,2,11,0], [--gdwarf2], [$insn],,
2649 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2650 [Define if your assembler supports the --gdwarf2 option.])])
2652 gcc_GAS_CHECK_FEATURE([--gstabs option],
2653 gcc_cv_as_gstabs_flag,
2654 [elf,2,11,0], [--gstabs], [$insn],
2655 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2656 # and warns about it, but still exits successfully. So check for
2658 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2660 else gcc_cv_as_gstabs_flag=yes
2662 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2663 [Define if your assembler supports the --gstabs option.])])
2666 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2667 gcc_cv_ld_ro_rw_mix=unknown
2668 if test $in_tree_ld = yes ; then
2669 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2670 && test $in_tree_ld_is_elf = yes; then
2671 gcc_cv_ld_ro_rw_mix=read-write
2673 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2674 echo '.section myfoosect, "a"' > conftest1.s
2675 echo '.section myfoosect, "aw"' > conftest2.s
2676 echo '.byte 1' >> conftest2.s
2677 echo '.section myfoosect, "a"' > conftest3.s
2678 echo '.byte 0' >> conftest3.s
2679 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2680 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2681 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2682 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2683 conftest2.o conftest3.o > /dev/null 2>&1; then
2684 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2685 | sed -e '/myfoosect/!d' -e N`
2686 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2687 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2688 gcc_cv_ld_ro_rw_mix=read-only
2690 gcc_cv_ld_ro_rw_mix=read-write
2695 rm -f conftest.* conftest[123].*
2698 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2699 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2700 [Define if your linker links a mix of read-only
2701 and read-write sections into a read-write section.])
2703 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2705 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2706 gcc_cv_ld_eh_frame_hdr=no
2707 if test $in_tree_ld = yes ; then
2708 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2709 && test $in_tree_ld_is_elf = yes; then
2710 gcc_cv_ld_eh_frame_hdr=yes
2712 elif test x$gcc_cv_ld != x; then
2713 # Check if linker supports --eh-frame-hdr option
2714 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2715 gcc_cv_ld_eh_frame_hdr=yes
2718 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2719 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2720 [Define if your linker supports --eh-frame-hdr option.])
2722 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2724 AC_MSG_CHECKING(linker position independent executable support)
2726 if test $in_tree_ld = yes ; then
2727 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2728 && test $in_tree_ld_is_elf = yes; then
2731 elif test x$gcc_cv_ld != x; then
2732 # Check if linker supports -pie option
2733 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2737 if test x"$gcc_cv_ld_pie" = xyes; then
2738 AC_DEFINE(HAVE_LD_PIE, 1,
2739 [Define if your linker supports -pie option.])
2741 AC_MSG_RESULT($gcc_cv_ld_pie)
2747 if test x$with_sysroot = x && test x$host = x$target \
2748 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2749 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2750 [Define to PREFIX/include if cpp should also search that directory.])
2753 # Find out what GC implementation we want, or may, use.
2755 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2762 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2767 echo "Using $GGC for garbage collection."
2769 # Use the system's zlib library.
2771 zlibinc="-I\$(srcdir)/../zlib"
2772 AC_ARG_WITH(system-zlib,
2773 [ --with-system-zlib use installed libz],
2780 dnl Very limited version of automake's enable-maintainer-mode
2782 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2783 dnl maintainer-mode is disabled by default
2784 AC_ARG_ENABLE(maintainer-mode,
2785 [ --enable-maintainer-mode
2786 enable make rules and dependencies not useful
2787 (and sometimes confusing) to the casual installer],
2788 maintainer_mode=$enableval,
2791 AC_MSG_RESULT($maintainer_mode)
2793 if test "$maintainer_mode" = "yes"; then
2804 # Make empty files to contain the specs and options for each language.
2805 # Then add #include lines to for a compiler that has specs and/or options.
2810 for subdir in . $subdirs
2812 if test -f $srcdir/$subdir/lang.opt; then
2813 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2815 if test -f $srcdir/$subdir/lang-specs.h; then
2816 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2818 if test -f $srcdir/$subdir/$subdir-tree.def; then
2819 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2823 # These (without "all_") are set in each config-lang.in.
2824 # `language' must be a single word so is spelled singularly.
2829 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2830 # List of language makefile fragments.
2832 # List of language subdirectory makefiles. Deprecated.
2834 # Files for gengtype
2835 all_gtfiles="$target_gtfiles"
2836 # Files for gengtype with language
2837 all_gtfiles_files_langs=
2838 all_gtfiles_files_files=
2840 # Add the language fragments.
2841 # Languages are added via two mechanisms. Some information must be
2842 # recorded in makefile variables, these are defined in config-lang.in.
2843 # We accumulate them and plug them into the main Makefile.
2844 # The other mechanism is a set of hooks for each of the main targets
2845 # like `clean', `install', etc.
2847 language_hooks="Make-hooks"
2857 . ${srcdir}/$s/config-lang.in
2858 if test "x$language" = x
2860 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2863 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2864 if test -f ${srcdir}/$s/Makefile.in
2865 then all_lang_makefiles="$s/Makefile"
2867 all_languages="$all_languages $language"
2868 if test "x$boot_language" = xyes
2870 all_boot_languages="$all_boot_languages $language"
2872 all_compilers="$all_compilers $compilers"
2873 all_stagestuff="$all_stagestuff $stagestuff"
2874 all_outputs="$all_outputs $outputs"
2875 all_gtfiles="$all_gtfiles $gtfiles"
2878 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2879 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2883 # Pick up gtfiles for c
2886 . ${srcdir}/c-config-lang.in
2887 all_gtfiles="$all_gtfiles $gtfiles"
2890 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2891 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2895 for language in $all_languages
2897 check_languages="$check_languages check-$language"
2900 # We link each language in with a set of hooks, reached indirectly via
2905 target_list="all.build all.cross start.encap rest.encap tags \
2906 install-normal install-common install-man \
2907 uninstall info man srcextra srcman srcinfo \
2908 mostlyclean clean distclean maintainer-clean \
2909 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2910 for t in $target_list
2913 for lang in $all_languages
2917 echo "lang.$t: $x" >> Make-hooks
2926 echo "dir ." > .gdbinit
2927 echo "dir ${srcdir}" >> .gdbinit
2928 if test x$gdb_needs_out_file_path = xyes
2930 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2932 if test "x$subdirs" != x; then
2935 echo "dir ${srcdir}/$s" >> .gdbinit
2938 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2940 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2941 # absolute path for gcc_tooldir based on inserting the number of up-directory
2942 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2943 # $(libsubdir)/@(unlibsubdir) based path.
2944 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2945 # make and thus we'd get different behavior depending on where we built the
2947 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2948 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
2950 changequote(<<, >>)dnl
2951 # An explanation of the sed strings:
2952 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2953 # -e 's|/$||' match a trailing forward slash and eliminates it
2954 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2955 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2957 # (*) Note this pattern overwrites the first character of the string
2958 # with a forward slash if one is not already present. This is not a
2959 # problem because the exact names of the sub-directories concerned is
2960 # unimportant, just the number of them matters.
2962 # The practical upshot of these patterns is like this:
2964 # prefix exec_prefix result
2965 # ------ ----------- ------
2967 # /foo/ /foo/bar ../
2968 # /foo /foo/bar/ ../
2969 # /foo/ /foo/bar/ ../
2970 # /foo /foo/bar/ugg ../../
2973 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
2974 changequote([, ])dnl
2976 AC_SUBST(gcc_tooldir)
2979 # Find a directory in which to install a shared libgcc.
2981 AC_ARG_ENABLE(version-specific-runtime-libs,
2982 [ --enable-version-specific-runtime-libs
2983 specify that runtime libraries should be
2984 installed in a compiler-specific directory])
2986 AC_ARG_WITH(slibdir,
2987 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2988 slibdir="$with_slibdir",
2989 if test "${enable_version_specific_runtime_libs+set}" = set; then
2990 slibdir='$(libsubdir)'
2991 elif test "$host" != "$target"; then
2992 slibdir='$(build_tooldir)/lib'
2998 objdir=`${PWDCMD-pwd}`
3001 # Substitute configuration variables
3004 AC_SUBST(all_boot_languages)
3005 AC_SUBST(all_compilers)
3006 AC_SUBST(all_gtfiles)
3007 AC_SUBST(all_gtfiles_files_langs)
3008 AC_SUBST(all_gtfiles_files_files)
3009 AC_SUBST(all_lang_makefrags)
3010 AC_SUBST(all_lang_makefiles)
3011 AC_SUBST(all_languages)
3012 AC_SUBST(all_stagestuff)
3013 AC_SUBST(build_exeext)
3014 AC_SUBST(build_install_headers_dir)
3015 AC_SUBST(build_xm_file_list)
3016 AC_SUBST(build_xm_include_list)
3017 AC_SUBST(build_xm_defines)
3018 AC_SUBST(check_languages)
3019 AC_SUBST(cc_set_by_configure)
3020 AC_SUBST(quoted_cc_set_by_configure)
3021 AC_SUBST(cpp_install_dir)
3022 AC_SUBST(xmake_file)
3023 AC_SUBST(tmake_file)
3024 AC_SUBST(extra_gcc_objs)
3025 AC_SUBST(extra_headers_list)
3026 AC_SUBST(extra_objs)
3027 AC_SUBST(extra_parts)
3028 AC_SUBST(extra_passes)
3029 AC_SUBST(extra_programs)
3030 AC_SUBST(float_h_file)
3031 AC_SUBST(gcc_config_arguments)
3032 AC_SUBST(gcc_gxx_include_dir)
3033 AC_SUBST(libstdcxx_incdir)
3034 AC_SUBST(gcc_version)
3035 AC_SUBST(gcc_version_full)
3036 AC_SUBST(gcc_version_trigger)
3037 AC_SUBST(host_exeext)
3038 AC_SUBST(host_xm_file_list)
3039 AC_SUBST(host_xm_include_list)
3040 AC_SUBST(host_xm_defines)
3041 AC_SUBST(out_host_hook_obj)
3043 AC_SUBST(lang_opt_files)
3044 AC_SUBST(lang_specs_files)
3045 AC_SUBST(lang_tree_files)
3046 AC_SUBST(local_prefix)
3048 AC_SUBST(objc_boehm_gc)
3050 AC_SUBST(out_object_file)
3051 AC_SUBST(stage_prefix_set_by_configure)
3052 AC_SUBST(quoted_stage_prefix_set_by_configure)
3053 AC_SUBST(symbolic_link)
3054 AC_SUBST(thread_file)
3055 AC_SUBST(tm_file_list)
3056 AC_SUBST(tm_include_list)
3057 AC_SUBST(tm_defines)
3058 AC_SUBST(tm_p_file_list)
3059 AC_SUBST(tm_p_include_list)
3060 AC_SUBST(xm_file_list)
3061 AC_SUBST(xm_include_list)
3062 AC_SUBST(xm_defines)
3063 AC_SUBST(target_noncanonical)
3064 AC_SUBST(c_target_objs)
3065 AC_SUBST(cxx_target_objs)
3066 AC_SUBST(target_cpu_default)
3068 AC_SUBST_FILE(language_hooks)
3070 # If it doesn't already exist, create document directory
3071 echo "checking for the document directory." 1>&2
3072 if test -d doc ; then
3079 if test x${build} = x${host} ; then
3080 if test x${host} = x${target} ; then
3081 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3083 echo "Links are now set up to build a cross-compiler" 1>&2
3084 echo " from ${host} to ${target}." 1>&2
3087 if test x${host} = x${target} ; then
3088 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3089 echo " for ${target}." 1>&2
3091 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3092 echo " from ${host} to ${target}." 1>&2
3096 # Configure the subdirectories
3097 # AC_CONFIG_SUBDIRS($subdirs)
3099 # Create the Makefile
3100 # and configure language subdirectories
3101 AC_CONFIG_FILES($all_outputs)
3103 AC_CONFIG_COMMANDS([default],
3105 case ${CONFIG_HEADERS} in
3106 *auto-host.h:config.in*)
3109 # Make sure all the subdirs exist.
3112 test -d $d || mkdir $d
3114 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3115 # bootstrapping and the installation procedure can still use
3116 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3117 # FLAGS_TO_PASS has been modified to solve the problem there.
3118 # This is virtually a duplicate of what happens in configure.lang; we do
3119 # an extra check to make sure this only happens if ln -s can be used.
3120 if test "$symbolic_link" = "ln -s"; then
3121 for d in ${subdirs} fixinc ; do
3122 STARTDIR=`${PWDCMD-pwd}`
3124 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3127 $symbolic_link ../$t $t 2>/dev/null
3134 symbolic_link='$symbolic_link'