| blob | d50bb392d918d9703cac2dfe0eb7bc8c3e26153c |
1 # configure.in for GCC
2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
6 #This file is part of GCC.
8 #GCC is free software; you can redistribute it and/or modify it under
9 #the terms of the GNU General Public License as published by the Free
10 #Software Foundation; either version 2, or (at your option) any later
11 #version.
13 #GCC is distributed in the hope that it will be useful, but WITHOUT
14 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 #for more details.
18 #You should have received a copy of the GNU General Public License
19 #along with GCC; see the file COPYING. If not, write to the Free
20 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
21 #02111-1307, USA.
23 # Initialization and defaults
24 AC_PREREQ(2.13)
25 AC_INIT(tree.c)
26 AC_CONFIG_HEADER(auto-host.h:config.in)
28 remove=rm
29 hard_link=ln
30 symbolic_link='ln -s'
31 copy=cp
33 # Check for bogus environment variables.
34 # Test if LIBRARY_PATH contains the notation for the current directory
35 # since this would lead to problems installing/building glibc.
36 # LIBRARY_PATH contains the current directory if one of the following
37 # is true:
38 # - one of the terminals (":" and ";") is the first or last sign
39 # - two terminals occur directly after each other
40 # - the path contains an element with a dot in it
41 AC_MSG_CHECKING(LIBRARY_PATH variable)
42 changequote(,)dnl
43 case ${LIBRARY_PATH} in
44 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
45 library_path_setting="contains current directory"
46 ;;
47 *)
48 library_path_setting="ok"
49 ;;
50 esac
51 changequote([,])dnl
52 AC_MSG_RESULT($library_path_setting)
53 if test "$library_path_setting" != "ok"; then
54 AC_MSG_ERROR([
55 *** LIBRARY_PATH shouldn't contain the current directory when
56 *** building gcc. Please change the environment variable
57 *** and run configure again.])
58 fi
60 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
61 # since this would lead to problems installing/building glibc.
62 # GCC_EXEC_PREFIX contains the current directory if one of the following
63 # is true:
64 # - one of the terminals (":" and ";") is the first or last sign
65 # - two terminals occur directly after each other
66 # - the path contains an element with a dot in it
67 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
68 changequote(,)dnl
69 case ${GCC_EXEC_PREFIX} in
70 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
71 gcc_exec_prefix_setting="contains current directory"
72 ;;
73 *)
74 gcc_exec_prefix_setting="ok"
75 ;;
76 esac
77 changequote([,])dnl
78 AC_MSG_RESULT($gcc_exec_prefix_setting)
79 if test "$gcc_exec_prefix_setting" != "ok"; then
80 AC_MSG_ERROR([
81 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
82 *** building gcc. Please change the environment variable
83 *** and run configure again.])
84 fi
86 # Check for additional parameters
88 # With GNU ld
89 AC_ARG_WITH(gnu-ld,
90 [ --with-gnu-ld arrange to work with GNU ld.],
91 gnu_ld_flag="$with_gnu_ld",
92 gnu_ld_flag=no)
94 # With pre-defined ld
95 AC_ARG_WITH(ld,
96 [ --with-ld arrange to use the specified ld (full pathname)],
97 DEFAULT_LINKER="$with_ld")
98 if test x"${DEFAULT_LINKER+set}" = x"set"; then
99 if test ! -x "$DEFAULT_LINKER"; then
100 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
101 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
102 gnu_ld_flag=yes
103 fi
104 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
105 [Define to enable the use of a default linker.])
106 fi
108 # With GNU as
109 AC_ARG_WITH(gnu-as,
110 [ --with-gnu-as arrange to work with GNU as],
111 gas_flag="$with_gnu_as",
112 gas_flag=no)
114 AC_ARG_WITH(as,
115 [ --with-as arrange to use the specified as (full pathname)],
116 DEFAULT_ASSEMBLER="$with_as")
117 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
118 if test ! -x "$DEFAULT_ASSEMBLER"; then
119 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
120 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
121 gas_flag=yes
122 fi
123 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
124 [Define to enable the use of a default assembler.])
125 fi
127 # With stabs
128 AC_ARG_WITH(stabs,
129 [ --with-stabs arrange to use stabs instead of host debug format],
130 stabs="$with_stabs",
131 stabs=no)
133 # With ELF
134 AC_ARG_WITH(elf,
135 [ --with-elf arrange to use ELF instead of host debug format],
136 elf="$with_elf",
137 elf=no)
139 # Specify the local prefix
140 local_prefix=
141 AC_ARG_WITH(local-prefix,
142 [ --with-local-prefix=DIR specifies directory to put local include],
143 [case "${withval}" in
144 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
145 no) ;;
146 *) local_prefix=$with_local_prefix ;;
147 esac])
149 # Default local prefix if it is empty
150 if test x$local_prefix = x; then
151 local_prefix=/usr/local
152 fi
154 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
155 # passed in by the toplevel make and thus we'd get different behavior
156 # depending on where we built the sources.
157 gcc_gxx_include_dir=
158 # Specify the g++ header file directory
159 AC_ARG_WITH(gxx-include-dir,
160 [ --with-gxx-include-dir=DIR
161 specifies directory to put g++ header files],
162 [case "${withval}" in
163 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
164 no) ;;
165 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
166 esac])
168 if test x${gcc_gxx_include_dir} = x; then
169 if test x${enable_version_specific_runtime_libs} = xyes; then
170 gcc_gxx_include_dir='${libsubdir}/include/c++'
171 else
172 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
173 changequote(<<, >>)dnl
174 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
175 changequote([, ])dnl
176 fi
177 fi
179 # Find the native compiler
180 AC_PROG_CC
181 AC_PROG_CC_C_O
182 # autoconf is lame and doesn't give us any substitution variable for this.
183 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
184 NO_MINUS_C_MINUS_O=yes
185 else
186 OUTPUT_OPTION='-o $@'
187 fi
188 AC_SUBST(NO_MINUS_C_MINUS_O)
189 AC_SUBST(OUTPUT_OPTION)
191 # See if GNAT has been installed
192 gcc_AC_PROG_GNAT
194 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
195 ac_cv_prog_cc_no_long_long,
196 [save_CFLAGS="$CFLAGS"
197 CFLAGS="-Wno-long-long"
198 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
199 ac_cv_prog_cc_no_long_long=no)
200 CFLAGS="$save_CFLAGS"])
202 if test x$have_gnat != xno ; then
203 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
204 ac_cv_prog_adac_no_long_long,
205 [cat >conftest.adb <<EOF
206 procedure conftest is begin null; end conftest;
207 EOF
208 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
209 ac_cv_prog_adac_no_long_long=yes
210 else
211 ac_cv_prog_adac_no_long_long=no
212 fi
213 rm -f conftest*])
214 else
215 ac_cv_prog_adac_no_long_long=yes
216 fi
218 strict1_warn=
219 if test $ac_cv_prog_cc_no_long_long = yes && \
220 test $ac_cv_prog_adac_no_long_long = yes ; then
221 strict1_warn="-pedantic -Wno-long-long"
222 fi
223 AC_SUBST(strict1_warn)
225 AC_PROG_CPP
226 AC_C_INLINE
227 gcc_AC_C_VOLATILE
229 gcc_AC_C_LONG_DOUBLE
230 gcc_AC_C_LONG_LONG
231 gcc_AC_C__BOOL
233 # sizeof(char) is 1 by definition.
234 gcc_AC_COMPILE_CHECK_SIZEOF(short)
235 gcc_AC_COMPILE_CHECK_SIZEOF(int)
236 gcc_AC_COMPILE_CHECK_SIZEOF(long)
237 if test $ac_cv_c_long_long = yes; then
238 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
239 fi
240 if test $ac_cv_c___int64 = yes; then
241 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
242 fi
244 gcc_AC_C_CHARSET
246 # If the native compiler is GCC, we can enable warnings even in stage1.
247 # That's useful for people building cross-compilers, or just running a
248 # quick `make'.
249 warn_cflags=
250 if test "x$GCC" = "xyes"; then
251 warn_cflags='$(GCC_WARN_CFLAGS)'
252 fi
253 AC_SUBST(warn_cflags)
255 # Determine whether or not multilibs are enabled.
256 AC_ARG_ENABLE(multilib,
257 [ --enable-multilib enable library support for multiple ABIs],
258 [], [enable_multilib=yes])
259 AC_SUBST(enable_multilib)
261 # Enable expensive internal checks
262 AC_ARG_ENABLE(checking,
263 [ --enable-checking[=LIST]
264 enable expensive run-time checks. With LIST,
265 enable only specific categories of checks.
266 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
267 default is misc,tree,gc,rtlflag],
268 [ac_checking=
269 ac_tree_checking=
270 ac_rtl_checking=
271 ac_rtlflag_checking=
272 ac_gc_checking=
273 ac_gc_always_collect=
274 case "${enableval}" in
275 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
276 ac_rtlflag_checking=1 ;;
277 no) ;;
278 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
279 set fnord $enableval; shift
280 IFS="$ac_save_IFS"
281 for check
282 do
283 case $check in
284 misc) ac_checking=1 ;;
285 tree) ac_tree_checking=1 ;;
286 rtlflag) ac_rtlflag_checking=1 ;;
287 rtl) ac_rtl_checking=1 ;;
288 gc) ac_gc_checking=1 ;;
289 gcac) ac_gc_always_collect=1 ;;
290 valgrind) ac_checking_valgrind=1 ;;
291 *) AC_MSG_ERROR(unknown check category $check) ;;
292 esac
293 done
294 ;;
295 esac
296 ],
297 # Enable some checks by default for development versions of GCC
298 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
299 nocommon_flag=""
300 if test x$ac_checking != x ; then
301 AC_DEFINE(ENABLE_CHECKING, 1,
302 [Define if you want more run-time sanity checks. This one gets a grab
303 bag of miscellaneous but relatively cheap checks.])
304 nocommon_flag=-fno-common
305 fi
306 AC_SUBST(nocommon_flag)
307 if test x$ac_tree_checking != x ; then
308 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
309 [Define if you want all operations on trees (the basic data
310 structure of the front ends) to be checked for dynamic type safety
311 at runtime. This is moderately expensive.])
312 fi
313 if test x$ac_rtl_checking != x ; then
314 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
315 [Define if you want all operations on RTL (the basic data structure
316 of the optimizer and back end) to be checked for dynamic type safety
317 at runtime. This is quite expensive.])
318 fi
319 if test x$ac_rtlflag_checking != x ; then
320 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
321 [Define if you want RTL flag accesses to be checked against the RTL
322 codes that are supported for each access macro. This is relatively
323 cheap.])
324 fi
325 if test x$ac_gc_checking != x ; then
326 AC_DEFINE(ENABLE_GC_CHECKING, 1,
327 [Define if you want the garbage collector to do object poisoning and
328 other memory allocation checks. This is quite expensive.])
329 fi
330 if test x$ac_gc_always_collect != x ; then
331 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
332 [Define if you want the garbage collector to operate in maximally
333 paranoid mode, validating the entire heap and collecting garbage at
334 every opportunity. This is extremely expensive.])
335 fi
336 valgrind_path_defines=
337 valgrind_command=
338 if test x$ac_checking_valgrind != x ; then
339 # It is certainly possible that there's valgrind but no valgrind.h.
340 # GCC relies on making annotations so we must have both.
341 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
342 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
343 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
344 if test "x$valgrind_path" = "x" || test $have_valgrind_h = no; then
345 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h])
346 fi
347 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
348 valgrind_command="$valgrind_path -q"
349 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
350 [Define if you want to run subprograms and generated programs
351 through valgrind (a memory checker). This is extremely expensive.])
352 fi
353 AC_SUBST(valgrind_path_defines)
354 AC_SUBST(valgrind_command)
356 # Enable code coverage collection
357 AC_ARG_ENABLE(coverage,
358 [ --enable-coverage[=LEVEL]
359 enable compiler\'s code coverage collection.
360 Use to measure compiler performance and locate
361 unused parts of the compiler. With LEVEL, specificy
362 optimization. Values are opt, noopt,
363 default is noopt],
364 [case "${enableval}" in
365 yes|noopt)
366 coverage_flags="-fprofile-arcs -ftest-coverage -O0"
367 ;;
368 opt)
369 coverage_flags="-fprofile-arcs -ftest-coverage -O2"
370 ;;
371 *)
372 AC_MSG_ERROR(unknown coverage setting $enableval)
373 ;;
374 esac],
375 [coverage_flags=""])
376 AC_SUBST(coverage_flags)
378 AC_ARG_WITH(cpp_install_dir,
379 [ --with-cpp-install-dir=DIR
380 install the user visible C preprocessor in DIR
381 (relative to PREFIX) as well as PREFIX/bin],
382 [if test x$withval = xyes; then
383 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
384 elif test x$withval != xno; then
385 cpp_install_dir=$withval
386 fi])
388 # Enable __cxa_atexit for C++.
389 AC_ARG_ENABLE(__cxa_atexit,
390 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
391 [], [])
392 if test x$enable___cxa_atexit = xyes; then
393 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
394 [Define if you want to use __cxa_atexit, rather than atexit, to
395 register C++ destructors for local statics and global objects.
396 This is essential for fully standards-compliant handling of
397 destructors, but requires __cxa_atexit in libc.])
398 fi
400 # Enable Multibyte Characters for C/C++
401 AC_ARG_ENABLE(c-mbchar,
402 [ --enable-c-mbchar enable multibyte characters for C and C++],
403 if test x$enable_c_mbchar != xno; then
404 AC_DEFINE(MULTIBYTE_CHARS, 1,
405 [Define if you want the C and C++ compilers to support multibyte
406 character sets for source code.])
407 fi)
409 # Enable threads
410 # Pass with no value to take the default
411 # Pass with a value to specify a thread package
412 AC_ARG_ENABLE(threads,
413 [ --enable-threads enable thread usage for target GCC
414 --enable-threads=LIB use LIB thread package for target GCC],,
415 enable_threads='')
417 enable_threads_flag=$enable_threads
418 # Check if a valid thread package
419 case x${enable_threads_flag} in
420 x | xno)
421 # No threads
422 target_thread_file='single'
423 ;;
424 xyes)
425 # default
426 target_thread_file=''
427 ;;
428 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
429 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
430 target_thread_file=$enable_threads_flag
431 ;;
432 *)
433 echo "$enable_threads is an unknown thread package" 1>&2
434 exit 1
435 ;;
436 esac
438 AC_ARG_ENABLE(objc-gc,
439 [ --enable-objc-gc enable the use of Boehm's garbage collector with
440 the GNU Objective-C runtime],
441 if test x$enable_objc_gc = xno; then
442 objc_boehm_gc=''
443 else
444 objc_boehm_gc=1
445 fi,
446 objc_boehm_gc='')
448 AC_ARG_WITH(dwarf2,
449 [ --with-dwarf2 force the default debug format to be DWARF 2],
450 dwarf2="$with_dwarf2",
451 dwarf2=no)
453 AC_ARG_ENABLE(shared,
454 [ --disable-shared don't provide a shared libgcc],
455 [
456 case $enable_shared in
457 yes | no) ;;
458 *)
459 enable_shared=no
460 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
461 for pkg in $enableval; do
462 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
463 enable_shared=yes
464 fi
465 done
466 IFS="$ac_save_ifs"
467 ;;
468 esac
469 ], [enable_shared=yes])
470 AC_SUBST(enable_shared)
472 # Determine the host, build, and target systems
473 AC_CANONICAL_SYSTEM
475 # Set program_transform_name
476 AC_ARG_PROGRAM
478 # Stage specific cflags for build.
479 stage1_cflags=
480 case $build in
481 vax-*-*)
482 if test x$GCC = xyes
483 then
484 stage1_cflags="-Wa,-J"
485 else
486 stage1_cflags="-J"
487 fi
488 ;;
489 powerpc-*-darwin*)
490 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
491 # sources; use -no-cpp-precomp to get to GNU cpp.
492 # Apple's GCC has bugs in designated initializer handling, so disable
493 # that too.
494 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
495 ;;
496 esac
497 AC_SUBST(stage1_cflags)
499 AC_PROG_MAKE_SET
501 AC_MSG_CHECKING([whether a default assembler was specified])
502 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
503 if test x"$gas_flag" = x"no"; then
504 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
505 else
506 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
507 fi
508 else
509 AC_MSG_RESULT(no)
510 fi
512 AC_MSG_CHECKING([whether a default linker was specified])
513 if test x"${DEFAULT_LINKER+set}" = x"set"; then
514 if test x"$gnu_ld_flag" = x"no"; then
515 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
516 else
517 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
518 fi
519 else
520 AC_MSG_RESULT(no)
521 fi
523 AC_MSG_CHECKING(for GNU C library)
524 AC_CACHE_VAL(gcc_cv_glibc,
525 [AC_TRY_COMPILE(
526 [#include <features.h>],[
527 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
528 #error Not a GNU C library system
529 #endif],
530 [gcc_cv_glibc=yes],
531 gcc_cv_glibc=no)])
532 AC_MSG_RESULT($gcc_cv_glibc)
533 if test $gcc_cv_glibc = yes; then
534 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
535 fi
537 # Find some useful tools
538 AC_PROG_AWK
539 gcc_AC_PROG_LN
540 gcc_AC_PROG_LN_S
541 AC_PROG_RANLIB
542 gcc_AC_PROG_INSTALL
544 AC_HEADER_STDC
545 AC_HEADER_TIME
546 gcc_AC_HEADER_STDBOOL
547 gcc_AC_HEADER_STRING
548 AC_HEADER_SYS_WAIT
549 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
550 fcntl.h unistd.h sys/file.h sys/time.h \
551 sys/resource.h sys/param.h sys/times.h sys/stat.h \
552 direct.h malloc.h langinfo.h)
554 # Check for thread headers.
555 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
556 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
558 # These tests can't be done till we know if we have limits.h.
559 gcc_AC_C_CHAR_BIT
560 gcc_AC_C_COMPILE_ENDIAN
561 gcc_AC_C_FLOAT_FORMAT
563 # See if we have the mktemp command.
564 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
566 # Do we have a single-tree copy of texinfo?
567 if test -f $srcdir/../texinfo/Makefile.in; then
568 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
569 gcc_cv_prog_makeinfo_modern=yes
570 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
571 else
572 # See if makeinfo has been installed and is modern enough
573 # that we can use it.
574 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
575 [GNU texinfo.* \([0-9][0-9.]*\)],
576 [4.[1-9]*])
577 fi
579 if test $gcc_cv_prog_makeinfo_modern = no; then
580 AC_MSG_WARN([
581 *** Makeinfo is missing or too old.
582 *** Info documentation will not be built.])
583 BUILD_INFO=
584 else
585 BUILD_INFO=info AC_SUBST(BUILD_INFO)
586 fi
588 # Is pod2man recent enough to regenerate manpages?
589 AC_MSG_CHECKING([for recent Pod::Man])
590 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
591 AC_MSG_RESULT(yes)
592 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
593 else
594 AC_MSG_RESULT(no)
595 GENERATED_MANPAGES=
596 fi
598 # How about lex?
599 dnl Don't use AC_PROG_LEX; we insist on flex.
600 dnl LEXLIB is not useful in gcc.
601 if test -f $srcdir/../flex/skel.c; then
602 FLEX='$(objdir)/../flex/flex'
603 else
604 AC_CHECK_PROG(FLEX, flex, flex, false)
605 fi
607 # Bison?
608 # The -L switch is so bison can find its skeleton file.
609 if test -f $srcdir/../bison/bison.simple; then
610 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
611 else
612 AC_CHECK_PROG(BISON, bison, bison, false)
613 fi
615 # These libraries may be used by collect2.
616 # We may need a special search path to get them linked.
617 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
618 [save_LIBS="$LIBS"
619 for libs in '' -lld -lmld \
620 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
621 '-L/usr/lib/cmplrs/cc3.11 -lmld'
622 do
623 LIBS="$libs"
624 AC_TRY_LINK_FUNC(ldopen,
625 [gcc_cv_collect2_libs="$libs"; break])
626 done
627 LIBS="$save_LIBS"
628 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
629 case $gcc_cv_collect2_libs in
630 "none required") ;;
631 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
632 esac
633 AC_SUBST(COLLECT2_LIBS)
635 # When building Ada code on Alpha, we need exc_resume which is usually in
636 # -lexc. So test for it.
637 save_LIBS="$LIBS"
638 LIBS=
639 AC_SEARCH_LIBS(exc_resume, exc)
640 GNAT_LIBEXC="$LIBS"
641 LIBS="$save_LIBS"
642 AC_SUBST(GNAT_LIBEXC)
644 # See if the stage1 system preprocessor understands the ANSI C
645 # preprocessor stringification operator. (Used by symcat.h.)
646 AC_C_STRINGIZE
648 # Use <inttypes.h> only if it exists,
649 # doesn't clash with <sys/types.h>, and declares intmax_t.
650 AC_MSG_CHECKING(for inttypes.h)
651 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
652 [AC_TRY_COMPILE(
653 [#include <sys/types.h>
654 #include <inttypes.h>],
655 [intmax_t i = -1;],
656 [gcc_cv_header_inttypes_h=yes],
657 gcc_cv_header_inttypes_h=no)])
658 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
659 if test $gcc_cv_header_inttypes_h = yes; then
660 AC_DEFINE(HAVE_INTTYPES_H, 1,
661 [Define if you have a working <inttypes.h> header file.])
662 fi
664 dnl Disabled until we have a complete test for buggy enum bitfields.
665 dnl gcc_AC_C_ENUM_BF_UNSIGNED
667 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
668 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
669 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
670 scandir alphasort)
672 AC_CHECK_TYPE(ssize_t, int)
674 # Try to determine the array type of the second argument of getgroups
675 # for the target system (int or gid_t).
676 AC_TYPE_GETGROUPS
677 if test "${target}" = "${build}"; then
678 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
679 else
680 case "${target}" in
681 # This condition may need some tweaking. It should include all
682 # targets where the array type of the second argument of getgroups
683 # is int and the type of gid_t is not equivalent to int.
684 *-*-sunos* | *-*-ultrix*)
685 TARGET_GETGROUPS_T=int
686 ;;
687 *)
688 TARGET_GETGROUPS_T=gid_t
689 ;;
690 esac
691 fi
692 AC_SUBST(TARGET_GETGROUPS_T)
694 gcc_AC_FUNC_PRINTF_PTR
696 case "${host}" in
697 *-*-uwin*)
698 AC_MSG_ERROR([
699 *** UWIN may not be used as a host platform because
700 *** linking with posix.dll is not allowed by the GNU GPL])
701 ;;
702 *-*-*vms*)
703 # Under VMS, vfork works very different than on Unix. The standard test
704 # won't work, and it isn't easily adaptable. It makes more sense to
705 # just force it.
706 ac_cv_func_vfork_works=yes
707 ;;
708 esac
709 AC_FUNC_VFORK
710 AC_FUNC_MMAP_ANYWHERE
711 AC_FUNC_MMAP_FILE
713 AM_ICONV
715 # We will need to find libiberty.h and ansidecl.h
716 saved_CFLAGS="$CFLAGS"
717 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
718 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
719 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
720 fprintf_unlocked strstr errno vasprintf \
721 malloc realloc calloc free basename getopt clock, , ,[
722 #include "ansidecl.h"
723 #include "system.h"])
725 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
726 #include "ansidecl.h"
727 #include "system.h"
728 #ifdef HAVE_SYS_RESOURCE_H
729 #include <sys/resource.h>
730 #endif
731 ])
733 gcc_AC_CHECK_DECLS(times, , ,[
734 #include "ansidecl.h"
735 #include "system.h"
736 #ifdef HAVE_SYS_TIMES_H
737 #include <sys/times.h>
738 #endif
739 ])
741 # More time-related stuff.
742 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
743 AC_TRY_COMPILE([
744 #include "ansidecl.h"
745 #include "system.h"
746 #ifdef HAVE_SYS_TIMES_H
747 #include <sys/times.h>
748 #endif
749 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
750 if test $ac_cv_struct_tms = yes; then
751 AC_DEFINE(HAVE_STRUCT_TMS, 1,
752 [Define if <sys/times.h> defines struct tms.])
753 fi
755 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
756 # revisit after autoconf 2.50.
757 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
758 AC_TRY_COMPILE([
759 #include "ansidecl.h"
760 #include "system.h"
761 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
762 if test $gcc_cv_type_clock_t = yes; then
763 AC_DEFINE(HAVE_CLOCK_T, 1,
764 [Define if <time.h> defines clock_t.])
765 fi
767 AC_ARG_ENABLE(initfini-array,
768 [ --enable-initfini-array use .init_array/.fini_array sections],
769 gcc_cv_initfinit_array=$enableval, [gcc_AC_INITFINI_ARRAY])
771 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
772 CFLAGS="$saved_CFLAGS"
774 # mkdir takes a single argument on some systems.
775 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
777 # File extensions
778 manext='.1'
779 objext='.o'
780 AC_SUBST(manext)
781 AC_SUBST(objext)
783 target_gtfiles=
784 build_xm_file=
785 build_xm_defines=
786 build_install_headers_dir=install-headers-tar
787 build_exeext=
788 host_xm_file=
789 host_xm_defines=
790 host_xmake_file=
791 host_truncate_target=
792 host_exeext=
794 # Decode the host machine, then the target machine.
795 # For the host machine, we save the xm_file variable as host_xm_file;
796 # then we decode the target machine and forget everything else
797 # that came from the host machine.
798 for machine in $build $host $target; do
799 . ${srcdir}/config.gcc
800 done
802 extra_objs="${host_extra_objs} ${extra_objs}"
804 # Default the target-machine variables that were not explicitly set.
805 if test x"$tm_file" = x
806 then tm_file=$cpu_type/$cpu_type.h; fi
808 if test x"$extra_headers" = x
809 then extra_headers=; fi
811 if test x$md_file = x
812 then md_file=$cpu_type/$cpu_type.md; fi
814 if test x$out_file = x
815 then out_file=$cpu_type/$cpu_type.c; fi
817 if test x"$tmake_file" = x
818 then tmake_file=$cpu_type/t-$cpu_type
819 fi
821 if test x"$dwarf2" = xyes
822 then tm_file="$tm_file tm-dwarf2.h"
823 fi
825 # Say what files are being used for the output code and MD file.
826 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
827 echo "Using \`$srcdir/config/$md_file' as machine description file."
829 # If any of the xm_file variables contain nonexistent files, warn
830 # about them and drop them.
832 bx=
833 for x in $build_xm_file; do
834 if test -f $srcdir/config/$x
835 then bx="$bx $x"
836 else AC_MSG_WARN($srcdir/config/$x does not exist.)
837 fi
838 done
839 build_xm_file="$bx"
841 hx=
842 for x in $host_xm_file; do
843 if test -f $srcdir/config/$x
844 then hx="$hx $x"
845 else AC_MSG_WARN($srcdir/config/$x does not exist.)
846 fi
847 done
848 host_xm_file="$hx"
850 tx=
851 for x in $xm_file; do
852 if test -f $srcdir/config/$x
853 then tx="$tx $x"
854 else AC_MSG_WARN($srcdir/config/$x does not exist.)
855 fi
856 done
857 xm_file="$tx"
859 count=a
860 for f in $tm_file; do
861 count=${count}x
862 done
863 if test $count = ax; then
864 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
865 else
866 echo "Using the following target machine macro files:"
867 for f in $tm_file; do
868 echo " $srcdir/config/$f"
869 done
870 fi
872 count=a
873 for f in $host_xm_file; do
874 count=${count}x
875 done
876 if test $count = a; then
877 :
878 elif test $count = ax; then
879 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
880 else
881 echo "Using the following host machine macro files:"
882 for f in $host_xm_file; do
883 echo " $srcdir/config/$f"
884 done
885 fi
887 if test "$host_xm_file" != "$build_xm_file"; then
888 count=a
889 for f in $build_xm_file; do
890 count=${count}x
891 done
892 if test $count = a; then
893 :
894 elif test $count = ax; then
895 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
896 else
897 echo "Using the following build machine macro files:"
898 for f in $build_xm_file; do
899 echo " $srcdir/config/$f"
900 done
901 fi
902 fi
904 if test x$thread_file = x; then
905 if test x$target_thread_file != x; then
906 thread_file=$target_thread_file
907 else
908 thread_file='single'
909 fi
910 fi
912 # Look for a file containing extra machine modes.
913 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
914 extra_modes_file='$(srcdir)'/config/${extra_modes}
915 AC_SUBST(extra_modes_file)
916 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
917 [Define to the name of a file containing a list of extra machine modes
918 for this architecture.])
919 AC_DEFINE(EXTRA_CC_MODES, 1,
920 [Define if the target architecture needs extra machine modes to represent
921 the results of comparisons.])
922 fi
924 # auto-host.h is the file containing items generated by autoconf and is
925 # the first file included by config.h.
926 # If host=build, it is correct to have hconfig include auto-host.h
927 # as well. If host!=build, we are in error and need to do more
928 # work to find out the build config parameters.
929 if test x$host = x$build
930 then
931 build_auto=auto-host.h
932 FORBUILD=..
933 else
934 # We create a subdir, then run autoconf in the subdir.
935 # To prevent recursion we set host and build for the new
936 # invocation of configure to the build for this invocation
937 # of configure.
938 tempdir=build.$$
939 rm -rf $tempdir
940 mkdir $tempdir
941 cd $tempdir
942 case ${srcdir} in
943 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
944 *) realsrcdir=../${srcdir};;
945 esac
946 saved_CFLAGS="${CFLAGS}"
947 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
948 ${realsrcdir}/configure \
949 --target=$target_alias --host=$build_alias --build=$build_alias
950 CFLAGS="${saved_CFLAGS}"
952 # We just finished tests for the build machine, so rename
953 # the file auto-build.h in the gcc directory.
954 mv auto-host.h ../auto-build.h
955 cd ..
956 rm -rf $tempdir
957 build_auto=auto-build.h
958 FORBUILD=../$build_alias
959 fi
960 AC_SUBST(FORBUILD)
962 tm_file="${tm_file} defaults.h"
963 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
964 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
965 xm_file="ansidecl.h ${xm_file} ${tm_file}"
967 # Truncate the target if necessary
968 if test x$host_truncate_target != x; then
969 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
970 fi
972 # Get the version trigger filename from the toplevel
973 if test "${with_gcc_version_trigger+set}" = set; then
974 gcc_version_trigger=$with_gcc_version_trigger
975 else
976 gcc_version_trigger=${srcdir}/version.c
977 fi
978 changequote(,)dnl
979 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
980 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
982 # Compile in configure arguments.
983 if test -f configargs.h ; then
984 # Being re-configured.
985 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
986 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
987 else
988 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
989 fi
990 cat > configargs.h <<EOF
991 /* Generated automatically. */
992 static const char configuration_arguments[] = "$gcc_config_arguments";
993 static const char thread_model[] = "$thread_file";
994 EOF
995 changequote([,])dnl
997 # Internationalization
998 PACKAGE=gcc
999 VERSION="$gcc_version"
1000 AC_SUBST(PACKAGE)
1001 AC_SUBST(VERSION)
1003 # Enable NLS support by default
1004 AC_ARG_ENABLE(nls,
1005 [ --enable-nls use Native Language Support (default)],
1006 , enable_nls=yes)
1008 # if cross compiling, disable NLS support.
1009 # It's not worth the trouble, at least for now.
1011 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1012 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1013 enable_nls=no
1014 fi
1016 AM_GNU_GETTEXT
1018 # Windows32 Registry support for specifying GCC installation paths.
1019 AC_ARG_ENABLE(win32-registry,
1020 [ --disable-win32-registry
1021 disable lookup of installation paths in the
1022 Registry on Windows hosts
1023 --enable-win32-registry enable registry lookup (default)
1024 --enable-win32-registry=KEY
1025 use KEY instead of GCC version as the last portion
1026 of the registry key],,)
1027 case $host_os in
1028 win32 | pe | cygwin* | mingw32* | uwin*)
1029 AC_MSG_CHECKING(whether windows registry support is requested)
1030 if test "x$enable_win32_registry" != xno; then
1031 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1032 [Define to 1 if installation paths should be looked up in Windows32
1033 Registry. Ignored on non windows32 hosts.])
1034 AC_MSG_RESULT(yes)
1035 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1036 else
1037 AC_MSG_RESULT(no)
1038 fi
1040 # Check if user specified a different registry key.
1041 case "x${enable_win32_registry}" in
1042 x | xyes)
1043 # default.
1044 gcc_cv_win32_registry_key="$VERSION"
1045 ;;
1046 xno)
1047 # no registry lookup.
1048 gcc_cv_win32_registry_key=''
1049 ;;
1050 *)
1051 # user-specified key.
1052 gcc_cv_win32_registry_key="$enable_win32_registry"
1053 ;;
1054 esac
1056 if test "x$enable_win32_registry" != xno; then
1057 AC_MSG_CHECKING(registry key on windows hosts)
1058 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1059 [Define to be the last portion of registry key on windows hosts.])
1060 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1061 fi
1062 ;;
1063 esac
1065 # Get an absolute path to the GCC top-level source directory
1066 holddir=`${PWDCMD-pwd}`
1067 cd $srcdir
1068 topdir=`${PWDCMD-pwd}`
1069 cd $holddir
1071 # Conditionalize the makefile for this host machine.
1072 # Make-host contains the concatenation of all host makefile fragments
1073 # [there can be more than one]. This file is built by configure.frag.
1074 host_overrides=Make-host
1075 dep_host_xmake_file=
1076 for f in .. ${host_xmake_file}
1077 do
1078 if test -f ${srcdir}/config/$f
1079 then
1080 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1081 fi
1082 done
1084 # Conditionalize the makefile for this target machine.
1085 # Make-target contains the concatenation of all host makefile fragments
1086 # [there can be more than one]. This file is built by configure.frag.
1087 target_overrides=Make-target
1088 dep_tmake_file=
1089 for f in .. ${tmake_file}
1090 do
1091 if test -f ${srcdir}/config/$f
1092 then
1093 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1094 fi
1095 done
1097 # If the host doesn't support symlinks, modify CC in
1098 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1099 # Otherwise, we can use "CC=$(CC)".
1100 rm -f symtest.tem
1101 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1102 then
1103 cc_set_by_configure="\$(CC)"
1104 quoted_cc_set_by_configure="\$(CC)"
1105 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1106 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1107 else
1108 rm -f symtest.tem
1109 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1110 then
1111 symbolic_link="cp -p"
1112 else
1113 symbolic_link="cp"
1114 fi
1115 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1116 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1117 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1118 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1119 fi
1120 rm -f symtest.tem
1122 out_object_file=`basename $out_file .c`.o
1124 tm_file_list=
1125 for f in $tm_file; do
1126 case $f in
1127 ansidecl.h )
1128 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1129 defaults.h )
1130 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1131 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1132 esac
1133 done
1135 tm_p_file_list=
1136 for f in $tm_p_file; do
1137 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1138 done
1140 host_xm_file_list=
1141 for f in $host_xm_file; do
1142 case $f in
1143 ansidecl.h )
1144 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1145 auto-host.h )
1146 host_xm_file_list="${host_xm_file_list} $f" ;;
1147 defaults.h )
1148 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1149 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1150 esac
1151 done
1153 build_xm_file_list=
1154 for f in $build_xm_file; do
1155 case $f in
1156 ansidecl.h )
1157 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1158 auto-build.h | auto-host.h )
1159 build_xm_file_list="${build_xm_file_list} $f" ;;
1160 defaults.h )
1161 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1162 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1163 esac
1164 done
1166 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1167 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1168 CROSS= AC_SUBST(CROSS)
1169 ALL=all.internal AC_SUBST(ALL)
1170 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1171 if test x$host != x$target
1172 then
1173 CROSS="-DCROSS_COMPILE"
1174 ALL=all.cross
1175 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1176 case "$host","$target" in
1177 i?86-*-*,x86_64-*-* \
1178 | powerpc*-*-*,powerpc64*-*-*)
1179 CROSS="$CROSS -DNATIVE_CROSS" ;;
1180 esac
1181 fi
1183 # If this is a cross-compiler that does not
1184 # have its own set of headers then define
1185 # inhibit_libc
1187 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1188 # This prevents libgcc2 from containing any code which requires libc
1189 # support.
1190 inhibit_libc=
1191 if [test x$host != x$target] && [test x$with_headers = x]; then
1192 inhibit_libc=-Dinhibit_libc
1193 else
1194 if [test x$with_newlib = xyes]; then
1195 inhibit_libc=-Dinhibit_libc
1196 fi
1197 fi
1198 AC_SUBST(inhibit_libc)
1200 # When building gcc with a cross-compiler, we need to adjust things so
1201 # that the generator programs are still built with the native compiler.
1202 # Also, we cannot run fixincludes or fix-header.
1203 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1204 # FIXME.
1206 # These are the normal (build=host) settings:
1207 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1208 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1209 HOST_CC='$(CC)' AC_SUBST(HOST_CC)
1210 HOST_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(HOST_CFLAGS)
1212 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1213 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1215 # And these apply if build != host.
1216 if test x$build != x$host
1217 then
1218 BUILD_PREFIX=build-
1219 BUILD_PREFIX_1=build-
1220 HOST_CC='$(CC_FOR_BUILD)'
1221 HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1223 STMP_FIXINC=
1224 STMP_FIXPROTO=
1225 fi
1227 # Expand extra_headers to include complete path.
1228 # This substitutes for lots of t-* files.
1229 extra_headers_list=
1230 if test "x$extra_headers" = x
1231 then true
1232 else
1233 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1234 for file in $extra_headers;
1235 do
1236 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1237 done
1238 fi
1240 if test x$use_collect2 = xno; then
1241 use_collect2=
1242 fi
1244 # Add a definition of USE_COLLECT2 if system wants one.
1245 if test x$use_collect2 != x
1246 then
1247 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1248 xm_defines="${xm_defines} USE_COLLECT2"
1249 fi
1251 # If we have gas in the build tree, make a link to it.
1252 if test -f ../gas/Makefile; then
1253 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1254 fi
1256 # If we have nm and objdump in the build tree, make a link to them.
1257 if test -f ../binutils/Makefile; then
1258 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1259 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1260 fi
1262 # If we have ld in the build tree, make a link to it.
1263 if test -f ../ld/Makefile; then
1264 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1265 fi
1267 # Figure out what assembler we will be using.
1268 AC_MSG_CHECKING(what assembler to use)
1269 gcc_cv_as=
1270 gcc_cv_gas_major_version=
1271 gcc_cv_gas_minor_version=
1272 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1273 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1274 if test -x "$DEFAULT_ASSEMBLER"; then
1275 gcc_cv_as="$DEFAULT_ASSEMBLER"
1276 elif test -x "$AS"; then
1277 gcc_cv_as="$AS"
1278 elif test -x as$host_exeext; then
1279 # Build using assembler in the current directory.
1280 gcc_cv_as=./as$host_exeext
1281 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1282 # Single tree build which includes gas.
1283 for f in $gcc_cv_as_bfd_srcdir/configure $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1284 do
1285 changequote(,)dnl
1286 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1287 changequote([,])dnl
1288 if test x$gcc_cv_gas_version != x; then
1289 break
1290 fi
1291 done
1292 changequote(,)dnl
1293 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1294 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1295 gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.[0-9]*\.\([0-9]*\)"`
1296 changequote([,])dnl
1297 fi
1299 if test "x$gcc_cv_as" = x; then
1300 # Search the same directories that the installed compiler will
1301 # search. Else we may find the wrong assembler and lose. If we
1302 # do not find a suitable assembler binary, then try the user's
1303 # path.
1304 #
1305 # Also note we have to check MD_EXEC_PREFIX before checking the
1306 # user's path. Unfortunately, there is no good way to get at the
1307 # value of MD_EXEC_PREFIX here. So we do a brute force search
1308 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1309 # to be fixed as part of the make/configure rewrite too.
1311 if test "x$exec_prefix" = xNONE; then
1312 if test "x$prefix" = xNONE; then
1313 test_prefix=/usr/local
1314 else
1315 test_prefix=$prefix
1316 fi
1317 else
1318 test_prefix=$exec_prefix
1319 fi
1321 # If the loop below does not find an assembler, then use whatever
1322 # one we can find in the users's path.
1323 # user's path.
1324 if test "x$program_prefix" != xNONE; then
1325 gcc_cv_as=${program_prefix}as$host_exeext
1326 else
1327 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1328 fi
1330 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1331 $test_prefix/lib/gcc-lib/$target_alias \
1332 /usr/lib/gcc/$target_alias/$gcc_version \
1333 /usr/lib/gcc/$target_alias \
1334 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1335 $test_prefix/$target_alias/bin"
1337 if test x$host = x$target; then
1338 test_dirs="$test_dirs \
1339 /usr/libexec \
1340 /usr/ccs/gcc \
1341 /usr/ccs/bin \
1342 /udk/usr/ccs/bin \
1343 /bsd43/usr/lib/cmplrs/cc \
1344 /usr/cross64/usr/bin \
1345 /usr/lib/cmplrs/cc \
1346 /sysv/usr/lib/cmplrs/cc \
1347 /svr4/usr/lib/cmplrs/cc \
1348 /usr/bin"
1349 fi
1351 for dir in $test_dirs; do
1352 if test -x $dir/as$host_exeext; then
1353 gcc_cv_as=$dir/as$host_exeext
1354 break;
1355 fi
1356 done
1357 fi
1358 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1359 AC_MSG_RESULT("newly built gas")
1360 else
1361 AC_MSG_RESULT($gcc_cv_as)
1362 fi
1364 # Figure out what linker we will be using.
1365 AC_MSG_CHECKING(what linker to use)
1366 gcc_cv_ld=
1367 gcc_cv_gld_major_version=
1368 gcc_cv_gld_minor_version=
1369 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1370 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1371 if test -x "$DEFAULT_LINKER"; then
1372 gcc_cv_ld="$DEFAULT_LINKER"
1373 elif test -x "$LD"; then
1374 gcc_cv_ld="$LD"
1375 elif test -x ld$host_exeext; then
1376 # Build using linker in the current directory.
1377 gcc_cv_ld=./ld$host_exeext
1378 elif test -f $gcc_cv_ld_gld_srcdir/configure.in -a -f ../ld/Makefile; then
1379 # Single tree build which includes ld.
1380 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
1381 do
1382 changequote(,)dnl
1383 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1384 changequote([,])dnl
1385 if test x$gcc_cv_gld_version != x; then
1386 break
1387 fi
1388 done
1389 changequote(,)dnl
1390 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1391 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1392 changequote([,])dnl
1393 fi
1395 if test "x$gcc_cv_ld" = x; then
1396 # Search the same directories that the installed compiler will
1397 # search. Else we may find the wrong linker and lose. If we
1398 # do not find a suitable linker binary, then try the user's
1399 # path.
1400 #
1401 # Also note we have to check MD_EXEC_PREFIX before checking the
1402 # user's path. Unfortunately, there is no good way to get at the
1403 # value of MD_EXEC_PREFIX here. So we do a brute force search
1404 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1405 # to be fixed as part of the make/configure rewrite too.
1407 if test "x$exec_prefix" = xNONE; then
1408 if test "x$prefix" = xNONE; then
1409 test_prefix=/usr/local
1410 else
1411 test_prefix=$prefix
1412 fi
1413 else
1414 test_prefix=$exec_prefix
1415 fi
1417 # If the loop below does not find an linker, then use whatever
1418 # one we can find in the users's path.
1419 # user's path.
1420 if test "x$program_prefix" != xNONE; then
1421 gcc_cv_ld=${program_prefix}ld$host_exeext
1422 else
1423 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1424 fi
1426 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1427 $test_prefix/lib/gcc-lib/$target_alias \
1428 /usr/lib/gcc/$target_alias/$gcc_version \
1429 /usr/lib/gcc/$target_alias \
1430 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1431 $test_prefix/$target_alias/bin"
1433 if test x$host = x$target; then
1434 test_dirs="$test_dirs \
1435 /usr/libexec \
1436 /usr/ccs/gcc \
1437 /usr/ccs/bin \
1438 /udk/usr/ccs/bin \
1439 /bsd43/usr/lib/cmplrs/cc \
1440 /usr/cross64/usr/bin \
1441 /usr/lib/cmplrs/cc \
1442 /sysv/usr/lib/cmplrs/cc \
1443 /svr4/usr/lib/cmplrs/cc \
1444 /usr/bin"
1445 fi
1447 for dir in $test_dirs; do
1448 if test -x $dir/ld$host_exeext; then
1449 gcc_cv_ld=$dir/ld$host_exeext
1450 break;
1451 fi
1452 done
1453 fi
1454 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1455 AC_MSG_RESULT("newly built ld")
1456 else
1457 AC_MSG_RESULT($gcc_cv_ld)
1458 fi
1460 # Figure out what nm we will be using.
1461 AC_MSG_CHECKING(what nm to use)
1462 if test -x nm$host_exeext; then
1463 gcc_cv_nm=./nm$host_exeext
1464 elif test "x$program_prefix" != xNONE; then
1465 gcc_cv_nm=${program_prefix}nm$host_exeext
1466 else
1467 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1468 fi
1469 AC_MSG_RESULT($gcc_cv_nm)
1471 # Figure out what objdump we will be using.
1472 AC_MSG_CHECKING(what objdump to use)
1473 if test -x objdump$host_exeext; then
1474 gcc_cv_objdump=./objdump$host_exeext
1475 elif test "x$program_prefix" != xNONE; then
1476 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1477 else
1478 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1479 fi
1480 AC_MSG_RESULT($gcc_cv_objdump)
1482 # Figure out what assembler alignment features are present.
1483 AC_MSG_CHECKING(assembler alignment features)
1484 gcc_cv_as_alignment_features=none
1485 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1486 # Gas version 2.6 and later support for .balign and .p2align.
1487 # bytes to skip when using .p2align.
1488 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1489 gcc_cv_as_alignment_features=".balign and .p2align"
1490 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1491 fi
1492 # Gas version 2.8 and later support specifying the maximum
1493 # bytes to skip when using .p2align.
1494 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1495 gcc_cv_as_alignment_features=".p2align including maximum skip"
1496 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1497 fi
1498 elif test x$gcc_cv_as != x; then
1499 # Check if we have .balign and .p2align
1500 echo ".balign 4" > conftest.s
1501 echo ".p2align 2" >> conftest.s
1502 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1503 gcc_cv_as_alignment_features=".balign and .p2align"
1504 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1505 fi
1506 rm -f conftest.s conftest.o
1507 # Check if specifying the maximum bytes to skip when
1508 # using .p2align is supported.
1509 echo ".p2align 4,,7" > conftest.s
1510 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1511 gcc_cv_as_alignment_features=".p2align including maximum skip"
1512 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1513 fi
1514 rm -f conftest.s conftest.o
1515 fi
1516 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1518 AC_MSG_CHECKING(assembler subsection support)
1519 gcc_cv_as_subsections=no
1520 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1521 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1522 gcc_cv_as_subsections="working .subsection -1"
1523 fi
1524 elif test x$gcc_cv_as != x; then
1525 # Check if we have .subsection
1526 echo ".subsection 1" > conftest.s
1527 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1528 gcc_cv_as_subsections=".subsection"
1529 if test x$gcc_cv_nm != x; then
1530 cat > conftest.s <<EOF
1531 conftest_label1: .word 0
1532 .subsection -1
1533 conftest_label2: .word 0
1534 .previous
1535 EOF
1536 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1537 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1538 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1539 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1540 :
1541 else
1542 gcc_cv_as_subsections="working .subsection -1"
1543 fi
1544 fi
1545 fi
1546 fi
1547 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1548 fi
1549 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1550 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1551 [Define if your assembler supports .subsection and .subsection -1 starts
1552 emitting at the beginning of your section.])
1553 fi
1554 AC_MSG_RESULT($gcc_cv_as_subsections)
1556 AC_MSG_CHECKING(assembler weak support)
1557 gcc_cv_as_weak=no
1558 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1559 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1560 gcc_cv_as_weak="yes"
1561 fi
1562 elif test x$gcc_cv_as != x; then
1563 # Check if we have .weak
1564 echo " .weak foobar" > conftest.s
1565 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1566 gcc_cv_as_weak="yes"
1567 fi
1568 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1569 fi
1570 if test x"$gcc_cv_as_weak" = xyes; then
1571 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1572 fi
1573 AC_MSG_RESULT($gcc_cv_as_weak)
1575 AC_MSG_CHECKING(assembler hidden support)
1576 gcc_cv_as_hidden=no
1577 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1578 if test "$gcc_cv_gas_major_version" -eq 2 \
1579 -a "$gcc_cv_gas_minor_version" -eq 12 \
1580 -a "$gcc_cv_gas_patch_version" -ge 1 \
1581 -o "$gcc_cv_gas_major_version" -eq 2 \
1582 -a "$gcc_cv_gas_minor_version" -gt 12 \
1583 -o "$gcc_cv_gas_major_version" -gt 2 \
1584 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1585 gcc_cv_as_hidden="yes"
1586 fi
1587 elif test x$gcc_cv_as != x; then
1588 # Check if we have .hidden
1589 echo " .hidden foobar" > conftest.s
1590 echo "foobar:" >> conftest.s
1591 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1592 gcc_cv_as_hidden="yes"
1593 fi
1594 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1596 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1597 # This is irritatingly difficult to feature test for. Look for
1598 # the date string after the version number.
1599 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1600 if echo "$ld_ver" | grep GNU > /dev/null; then
1601 changequote(,)dnl
1602 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([ ].*\|\)$,\1,p'`
1603 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1604 if test 0"$ld_date" -lt 20020404; then
1605 if test -n "$ld_date"; then
1606 # If there was date string, but was earlier than 2002-04-04, fail
1607 gcc_cv_as_hidden="no"
1608 elif test -z "$ld_vers"; then
1609 # If there was no date string nor ld version number, something is wrong
1610 gcc_cv_as_hidden="no"
1611 else
1612 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1613 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1614 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1615 test -z "$ld_vers_patch" && ld_vers_patch=0
1616 if test "$ld_vers_major" -lt 2; then
1617 gcc_cv_as_hidden="no"
1618 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1619 gcc_cv_as_hidden="no"
1620 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1621 -a "$ld_vers_patch" -eq 0; then
1622 gcc_cv_as_hidden="no"
1623 fi
1624 fi
1625 fi
1626 changequote([,])dnl
1627 fi
1628 fi
1629 if test x"$gcc_cv_as_hidden" = xyes; then
1630 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1631 [Define if your assembler supports .hidden.])
1632 fi
1633 AC_MSG_RESULT($gcc_cv_as_hidden)
1634 libgcc_visibility=$gcc_cv_as_hidden
1635 case "$target" in
1636 mips-sgi-irix6*o32)
1637 if test x"$gnu_ld_flag" = x"no"; then
1638 # Even if using gas with .hidden support, the resulting object files
1639 # cannot be linked with the IRIX 6 O32 linker.
1640 libgcc_visibility=no
1641 fi
1642 ;;
1643 esac
1644 AC_SUBST(libgcc_visibility)
1646 AC_MSG_CHECKING(assembler leb128 support)
1647 gcc_cv_as_leb128=no
1648 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1649 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 11 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1650 gcc_cv_as_leb128="yes"
1651 fi
1652 elif test x$gcc_cv_as != x; then
1653 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1654 cat > conftest.s <<EOF
1655 .data
1656 .uleb128 L2 - L1
1657 L1:
1658 .uleb128 1280
1659 .sleb128 -1010
1660 L2:
1661 EOF
1662 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1663 gcc_cv_as_leb128="yes"
1665 # GAS versions before 2.11 do not support uleb128,
1666 # despite appearing to.
1667 # ??? There exists an elf-specific test that will crash
1668 # the assembler. Perhaps it's better to figure out whether
1669 # arbitrary sections are supported and try the test.
1670 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1671 if echo "$as_ver" | grep GNU > /dev/null; then
1672 changequote(,)dnl
1673 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1674 as_major=`echo $as_ver | sed 's/\..*//'`
1675 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1676 changequote([,])dnl
1677 if test $as_major -eq 2 -a $as_minor -lt 11; then
1678 gcc_cv_as_leb128="no"
1679 fi
1680 fi
1681 fi
1682 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1683 fi
1684 if test x"$gcc_cv_as_leb128" = xyes; then
1685 AC_DEFINE(HAVE_AS_LEB128, 1,
1686 [Define if your assembler supports .uleb128.])
1687 fi
1688 AC_MSG_RESULT($gcc_cv_as_leb128)
1690 AC_MSG_CHECKING(assembler eh_frame optimization)
1691 gcc_cv_as_eh_frame=no
1692 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1693 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1694 gcc_cv_as_eh_frame="yes"
1695 fi
1696 elif test x$gcc_cv_as != x; then
1697 # Check if this is GAS.
1698 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1699 rm -f a.out 2> /dev/null
1700 if echo "$as_ver" | grep GNU > /dev/null; then
1701 # Versions up to and including 2.11.0 may mis-optimize
1702 # .eh_frame data. Try something.
1703 cat > conftest.s <<EOF
1704 .text
1705 .LFB1:
1706 .4byte 0
1707 .L1:
1708 .4byte 0
1709 .LFE1:
1710 .section .eh_frame,"aw",@progbits
1711 __FRAME_BEGIN__:
1712 .4byte .LECIE1-.LSCIE1
1713 .LSCIE1:
1714 .4byte 0x0
1715 .byte 0x1
1716 .ascii "z\0"
1717 .byte 0x1
1718 .byte 0x78
1719 .byte 0x1a
1720 .byte 0x0
1721 .byte 0x4
1722 .4byte 1
1723 .p2align 1
1724 .LECIE1:
1725 .LSFDE1:
1726 .4byte .LEFDE1-.LASFDE1
1727 .LASFDE1:
1728 .4byte .LASFDE1-__FRAME_BEGIN__
1729 .4byte .LFB1
1730 .4byte .LFE1-.LFB1
1731 .byte 0x4
1732 .4byte .LFE1-.LFB1
1733 .byte 0x4
1734 .4byte .L1-.LFB1
1735 .LEFDE1:
1736 EOF
1737 cat > conftest.lit <<EOF
1738 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1739 0010 01000000 12000000 18000000 00000000 ................
1740 0020 08000000 04080000 0044 .........D
1741 EOF
1742 cat > conftest.big <<EOF
1743 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1744 0010 00000001 00000012 00000018 00000000 ................
1745 0020 00000008 04000000 0844 .........D
1746 EOF
1747 # If the assembler didn't choke, and we can objdump,
1748 # and we got the correct data, then succeed.
1749 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1750 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1751 | tail -3 > conftest.got \
1752 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1753 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1754 then
1755 gcc_cv_as_eh_frame="yes"
1756 else
1757 gcc_cv_as_eh_frame="bad"
1758 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1759 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1760 [Define if your assembler mis-optimizes .eh_frame data.])
1761 fi
1762 fi
1763 fi
1764 rm -f conftest.*
1765 fi
1766 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1768 AC_MSG_CHECKING(assembler section merging support)
1769 gcc_cv_as_shf_merge=no
1770 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1771 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1772 gcc_cv_as_shf_merge=yes
1773 fi
1774 elif test x$gcc_cv_as != x; then
1775 # Check if we support SHF_MERGE sections
1776 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1777 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1778 gcc_cv_as_shf_merge=yes
1779 fi
1780 rm -f conftest.s conftest.o
1781 fi
1782 if test x"$gcc_cv_as_shf_merge" = xyes; then
1783 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1784 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1785 fi
1786 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1788 AC_MSG_CHECKING(assembler thread-local storage support)
1789 gcc_cv_as_tls=no
1790 conftest_s=
1791 tls_first_major=
1792 tls_first_minor=
1793 case "$target" in
1794 changequote(,)dnl
1795 alpha*-*-*)
1796 conftest_s='
1797 .section ".tdata","awT",@progbits
1798 foo: .long 25
1799 .text
1800 ldq $27,__tls_get_addr($29) !literal!1
1801 lda $16,foo($29) !tlsgd!1
1802 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1803 ldq $27,__tls_get_addr($29) !literal!2
1804 lda $16,foo($29) !tlsldm!2
1805 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
1806 ldq $1,foo($29) !gotdtprel
1807 ldah $2,foo($29) !dtprelhi
1808 lda $3,foo($2) !dtprello
1809 lda $4,foo($29) !dtprel
1810 ldq $1,foo($29) !gottprel
1811 ldah $2,foo($29) !tprelhi
1812 lda $3,foo($2) !tprello
1813 lda $4,foo($29) !tprel'
1814 tls_first_major=2
1815 tls_first_minor=13
1816 ;;
1817 i[34567]86-*-*)
1818 changequote([,])dnl
1819 conftest_s='
1820 .section ".tdata","awT",@progbits
1821 foo: .long 25
1822 .text
1823 movl %gs:0, %eax
1824 leal foo@TLSGD(,%ebx,1), %eax
1825 leal foo@TLSLDM(%ebx), %eax
1826 leal foo@DTPOFF(%eax), %edx
1827 movl foo@GOTTPOFF(%ebx), %eax
1828 subl foo@GOTTPOFF(%ebx), %eax
1829 addl foo@GOTNTPOFF(%ebx), %eax
1830 movl foo@INDNTPOFF, %eax
1831 movl $foo@TPOFF, %eax
1832 subl $foo@TPOFF, %eax
1833 leal foo@NTPOFF(%ecx), %eax'
1834 tls_first_major=2
1835 tls_first_minor=14
1836 ;;
1837 x86_64-*-*)
1838 conftest_s='
1839 .section ".tdata","awT",@progbits
1840 foo: .long 25
1841 .text
1842 movq %fs:0, %rax
1843 leaq foo@TLSGD(%rip), %rdi
1844 leaq foo@TLSLD(%rip), %rdi
1845 leaq foo@DTPOFF(%rax), %rdx
1846 movq foo@GOTTPOFF(%rip), %rax
1847 movq $foo@TPOFF, %rax'
1848 tls_first_major=2
1849 tls_first_minor=14
1850 ;;
1851 ia64-*-*)
1852 conftest_s='
1853 .section ".tdata","awT",@progbits
1854 foo: data8 25
1855 .text
1856 addl r16 = @ltoff(@dtpmod(foo#)), gp
1857 addl r17 = @ltoff(@dtprel(foo#)), gp
1858 addl r18 = @ltoff(@tprel(foo#)), gp
1859 addl r19 = @dtprel(foo#), gp
1860 adds r21 = @dtprel(foo#), r13
1861 movl r23 = @dtprel(foo#)
1862 addl r20 = @tprel(foo#), gp
1863 adds r22 = @tprel(foo#), r13
1864 movl r24 = @tprel(foo#)'
1865 tls_first_major=2
1866 tls_first_minor=13
1867 ;;
1868 esac
1869 if test -z "$tls_first_major"; then
1870 :
1871 elif test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1872 then
1873 if test "$gcc_cv_gas_major_version" -eq "$tls_first_major" \
1874 -a "$gcc_cv_gas_minor_version" -ge "$tls_first_minor" \
1875 -o "$gcc_cv_gas_major_version" -gt "$tls_first_major"; then
1876 gcc_cv_as_tls=yes
1877 fi
1878 elif test x$gcc_cv_as != x; then
1879 echo "$conftest_s" > conftest.s
1880 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
1881 then
1882 gcc_cv_as_tls=yes
1883 fi
1884 rm -f conftest.s conftest.o
1885 fi
1886 if test "$gcc_cv_as_tls" = yes; then
1887 AC_DEFINE(HAVE_AS_TLS, 1,
1888 [Define if your assembler supports thread-local storage.])
1889 fi
1890 AC_MSG_RESULT($gcc_cv_as_tls)
1892 case "$target" in
1893 # All TARGET_ABI_OSF targets.
1894 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
1895 AC_CACHE_CHECK([assembler supports explicit relocations],
1896 gcc_cv_as_explicit_relocs, [
1897 gcc_cv_as_explicit_relocs=unknown
1898 if test x$gcc_cv_gas_major_version != x \
1899 -a x$gcc_cv_gas_minor_version != x
1900 then
1901 if test "$gcc_cv_gas_major_version" -eq 2 \
1902 -a "$gcc_cv_gas_minor_version" -ge 12 \
1903 -o "$gcc_cv_gas_major_version" -gt 2; then
1904 gcc_cv_as_explicit_relocs=yes
1905 fi
1906 elif test x$gcc_cv_as != x; then
1907 cat > conftest.s << 'EOF'
1908 .set nomacro
1909 .text
1910 extbl $3, $2, $3 !lituse_bytoff!1
1911 ldq $2, a($29) !literal!1
1912 ldq $4, b($29) !literal!2
1913 ldq_u $3, 0($2) !lituse_base!1
1914 ldq $27, f($29) !literal!5
1915 jsr $26, ($27), f !lituse_jsr!5
1916 ldah $29, 0($26) !gpdisp!3
1917 lda $0, c($29) !gprel
1918 ldah $1, d($29) !gprelhigh
1919 lda $1, d($1) !gprellow
1920 lda $29, 0($29) !gpdisp!3
1921 EOF
1922 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1923 gcc_cv_as_explicit_relocs=yes
1924 else
1925 gcc_cv_as_explicit_relocs=no
1926 fi
1927 rm -f conftest.s conftest.o
1928 fi
1929 ])
1930 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
1931 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
1932 [Define if your assembler supports explicit relocations.])
1933 fi
1934 ;;
1935 sparc*-*-*)
1936 AC_CACHE_CHECK([assembler .register pseudo-op support],
1937 gcc_cv_as_register_pseudo_op, [
1938 gcc_cv_as_register_pseudo_op=unknown
1939 if test x$gcc_cv_as != x; then
1940 # Check if we have .register
1941 echo ".register %g2, #scratch" > conftest.s
1942 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1943 gcc_cv_as_register_pseudo_op=yes
1944 else
1945 gcc_cv_as_register_pseudo_op=no
1946 fi
1947 rm -f conftest.s conftest.o
1948 fi
1949 ])
1950 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1951 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1952 [Define if your assembler supports .register.])
1953 fi
1955 AC_CACHE_CHECK([assembler supports -relax],
1956 gcc_cv_as_relax_opt, [
1957 gcc_cv_as_relax_opt=unknown
1958 if test x$gcc_cv_as != x; then
1959 # Check if gas supports -relax
1960 echo ".text" > conftest.s
1961 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1962 gcc_cv_as_relax_opt=yes
1963 else
1964 gcc_cv_as_relax_opt=no
1965 fi
1966 rm -f conftest.s conftest.o
1967 fi
1968 ])
1969 if test "x$gcc_cv_as_relax_opt" = xyes; then
1970 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1971 [Define if your assembler supports -relax option.])
1972 fi
1974 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
1975 gcc_cv_as_sparc_ua_pcrel, [
1976 gcc_cv_as_sparc_ua_pcrel=unknown
1977 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
1978 gcc_cv_as_sparc_ua_pcrel=no
1979 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
1980 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1981 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
1982 gcc_cv_as_sparc_ua_pcrel=yes
1983 fi
1984 rm -f conftest.s conftest.o conftest
1985 fi
1986 ])
1987 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1988 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
1989 [Define if your assembler and linker support unaligned PC relative relocs.])
1990 fi
1992 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
1993 gcc_cv_as_sparc_ua_pcrel_hidden, [
1994 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1995 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
1996 if test x$gcc_cv_objdump != x; then
1997 gcc_cv_as_sparc_ua_pcrel_hidden=no
1998 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
1999 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2000 echo "foo: .skip 4" >> conftest.s
2001 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2002 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2003 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2004 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2005 if $gcc_cv_objdump -R conftest 2> /dev/null \
2006 | grep 'DISP32' > /dev/null 2>&1; then
2007 :
2008 else
2009 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2010 fi
2011 fi
2012 fi
2013 rm -f conftest.s conftest.o conftest
2014 else
2015 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2016 fi
2017 ])
2018 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2019 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2020 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2021 fi
2023 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2024 gcc_cv_as_offsetable_lo10, [
2025 gcc_cv_as_offsetable_lo10=unknown
2026 if test "x$gcc_cv_as" != x; then
2027 # Check if assembler has offsetable %lo()
2028 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2029 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2030 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2031 > /dev/null 2>&1 &&
2032 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2033 > /dev/null 2>&1; then
2034 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2035 gcc_cv_as_offsetable_lo10=no
2036 else
2037 gcc_cv_as_offsetable_lo10=yes
2038 fi
2039 else
2040 gcc_cv_as_offsetable_lo10=no
2041 fi
2042 rm -f conftest.s conftest.o conftest1.s conftest1.o
2043 fi
2044 ])
2045 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2046 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2047 [Define if your assembler supports offsetable %lo().])
2048 fi
2050 ;;
2052 changequote(,)dnl
2053 i[34567]86-*-* | x86_64-*-*)
2054 changequote([,])dnl
2055 AC_MSG_CHECKING(assembler instructions)
2056 gcc_cv_as_instructions=
2057 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
2058 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
2059 gcc_cv_as_instructions="filds fists"
2060 fi
2061 elif test x$gcc_cv_as != x; then
2062 set "filds fists" "filds mem; fists mem"
2063 while test $# -gt 0
2064 do
2065 echo "$2" > conftest.s
2066 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2067 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2068 fi
2069 shift 2
2070 done
2071 rm -f conftest.s conftest.o
2072 fi
2073 if test x"$gcc_cv_as_instructions" != x; then
2074 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2075 fi
2076 AC_MSG_RESULT($gcc_cv_as_instructions)
2078 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2079 gcc_cv_as_gotoff_in_data=no
2080 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
2081 then
2082 if test "$gcc_cv_gas_major_version" -eq 2 \
2083 -a "$gcc_cv_gas_minor_version" -ge 11 \
2084 -o "$gcc_cv_gas_major_version" -gt 2; then
2085 gcc_cv_as_gotoff_in_data=yes
2086 fi
2087 elif test x$gcc_cv_as != x; then
2088 cat > conftest.s <<EOF
2089 .text
2090 .L0:
2091 nop
2092 .data
2093 .long .L0@GOTOFF
2094 EOF
2095 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2096 gcc_cv_as_gotoff_in_data=yes
2097 fi
2098 fi
2099 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2100 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2101 [Define true if the assembler supports '.long foo@GOTOFF'.])
2102 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2103 ;;
2104 esac
2106 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2107 gcc_cv_as_dwarf2_debug_line=no
2108 # ??? Not all targets support dwarf2 debug_line, even within a version
2109 # of gas. Moreover, we need to emit a valid instruction to trigger any
2110 # info to the output file. So, as supported targets are added to gas 2.11,
2111 # add some instruction here to (also) show we expect this might work.
2112 # ??? Once 2.11 is released, probably need to add first known working
2113 # version to the per-target configury.
2114 case "$target" in
2115 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-* | hppa*-*-*)
2116 insn="nop"
2117 ;;
2118 ia64*-*-*)
2119 insn="nop 0"
2120 ;;
2121 esac
2122 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2123 then
2124 if test "$gcc_cv_gas_major_version" -eq 2 \
2125 -a "$gcc_cv_gas_minor_version" -ge 11 \
2126 -o "$gcc_cv_gas_major_version" -gt 2 \
2127 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2128 && test x"$insn" != x ; then
2129 gcc_cv_as_dwarf2_debug_line="yes"
2130 fi
2131 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2132 echo ' .file 1 "conftest.s"' > conftest.s
2133 echo ' .loc 1 3 0' >> conftest.s
2134 echo " $insn" >> conftest.s
2135 # ??? This fails with non-gnu grep.
2136 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2137 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2138 # The .debug_line file table must be in the exact order that
2139 # we specified the files, since these indices are also used
2140 # by DW_AT_decl_file. Approximate this test by testing if
2141 # the assembler bitches if the same index is assigned twice.
2142 echo ' .file 1 "foo.s"' > conftest.s
2143 echo ' .file 1 "bar.s"' >> conftest.s
2144 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2145 then
2146 gcc_cv_as_dwarf2_debug_line="no"
2147 else
2148 gcc_cv_as_dwarf2_debug_line="yes"
2149 fi
2150 fi
2151 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2152 fi
2153 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2154 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2155 [Define if your assembler supports dwarf2 .file/.loc directives,
2156 and preserves file table indices exactly as given.])
2157 fi
2158 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2160 AC_MSG_CHECKING(assembler --gdwarf2 support)
2161 gcc_cv_as_gdwarf2_flag=no
2162 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2163 then
2164 if test "$gcc_cv_gas_major_version" -eq 2 \
2165 -a "$gcc_cv_gas_minor_version" -ge 11 \
2166 -o "$gcc_cv_gas_major_version" -gt 2 \
2167 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2168 && test x"$insn" != x ; then
2169 gcc_cv_as_gdwarf2_flag="yes"
2170 fi
2171 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2172 echo '' > conftest.s
2173 # ??? This fails with non-gnu grep.
2174 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2175 then
2176 gcc_cv_as_gdwarf2_flag="yes"
2177 fi
2178 rm -f conftest.s conftest.o
2179 fi
2180 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2181 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2182 [Define if your assembler supports the --gdwarf2 option.])
2183 fi
2184 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2186 AC_MSG_CHECKING(assembler --gstabs support)
2187 gcc_cv_as_gstabs_flag=no
2188 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2189 then
2190 if test "$gcc_cv_gas_major_version" -eq 2 \
2191 -a "$gcc_cv_gas_minor_version" -ge 11 \
2192 -o "$gcc_cv_gas_major_version" -gt 2 \
2193 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2194 && test x"$insn" != x ; then
2195 gcc_cv_as_gstabs_flag="yes"
2196 fi
2197 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2198 echo '' > conftest.s
2199 # ??? This fails with non-gnu grep.
2200 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2201 gcc_cv_as_gstabs_flag="yes"
2202 fi
2203 rm -f conftest.s conftest.o
2204 fi
2205 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2206 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2207 [Define if your assembler supports the --gstabs option.])
2208 fi
2209 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2211 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2212 gcc_cv_ld_eh_frame_hdr=no
2213 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2214 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2215 gcc_cv_ld_eh_frame_hdr=yes
2216 fi
2217 elif test x$gcc_cv_ld != x; then
2218 # Check if linker supports --eh-frame-hdr option
2219 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2220 gcc_cv_ld_eh_frame_hdr=yes
2221 fi
2222 fi
2223 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2224 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2225 [Define if your linker supports --eh-frame-hdr option.])
2226 fi
2227 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2229 # Miscellaneous target-specific checks.
2230 case "$target" in
2231 mips*-*-*)
2232 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2233 gcc_cv_mips_libgloss_startup=no
2234 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2235 if test "x$exec_prefix" = xNONE; then
2236 if test "x$prefix" = xNONE; then
2237 test_prefix=/usr/local
2238 else
2239 test_prefix=$prefix
2240 fi
2241 else
2242 test_prefix=$exec_prefix
2243 fi
2244 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2245 do
2246 if grep '^STARTUP' $f > /dev/null 2>&1; then
2247 gcc_cv_mips_libgloss_startup=yes
2248 break
2249 fi
2250 done
2251 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2252 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2253 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2254 fi
2255 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2256 ;;
2257 esac
2259 if test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2260 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2261 fi
2263 # Figure out what language subdirectories are present.
2264 # Look if the user specified --enable-languages="..."; if not, use
2265 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2266 # go away some day.
2267 # NB: embedded tabs in this IF block -- do not untabify
2268 if test x"${enable_languages+set}" != xset; then
2269 if test x"${LANGUAGES+set}" = xset; then
2270 enable_languages="${LANGUAGES}"
2271 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2273 else
2274 enable_languages=all
2275 fi
2276 else
2277 if test x"${enable_languages}" = x \
2278 || test x"${enable_languages}" = xyes;
2279 then
2280 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2281 fi
2282 fi
2283 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2285 # First scan to see if an enabled language requires some other language.
2286 # We assume that a given config-lang.in will list all the language
2287 # front ends it requires, even if some are required indirectly.
2288 for lang in ${srcdir}/*/config-lang.in ..
2289 do
2290 case $lang in
2291 ..)
2292 ;;
2293 # The odd quoting in the next line works around
2294 # an apparent bug in bash 1.12 on linux.
2295 changequote(,)dnl
2296 ${srcdir}/[*]/config-lang.in)
2297 ;;
2298 *)
2299 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2300 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2301 for other in $this_lang_requires
2302 do
2303 case ,${enable_languages}, in
2304 *,$other,*)
2305 ;;
2306 *,all,*)
2307 ;;
2308 *,$lang_alias,*)
2309 enable_languages="$enable_languages,$other"
2310 ;;
2311 esac
2312 done
2313 ;;
2314 changequote([,])dnl
2315 esac
2316 done
2318 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2319 found_languages=
2320 subdirs=
2321 for lang in ${srcdir}/*/config-lang.in ..
2322 do
2323 case $lang in
2324 ..) ;;
2325 # The odd quoting in the next line works around
2326 # an apparent bug in bash 1.12 on linux.
2327 changequote(,)dnl
2328 ${srcdir}/[*]/config-lang.in) ;;
2329 *)
2330 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2331 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2332 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2333 if test "x$lang_alias" = x
2334 then
2335 echo "$lang doesn't set \$language." 1>&2
2336 exit 1
2337 fi
2338 case ${build_by_default},${enable_languages}, in
2339 *,$lang_alias,*) add_this_lang=yes ;;
2340 no,*) add_this_lang=no ;;
2341 *,all,*) add_this_lang=yes ;;
2342 *) add_this_lang=no ;;
2343 esac
2344 found_languages="${found_languages} ${lang_alias}"
2345 if test x"${add_this_lang}" = xyes; then
2346 case $lang in
2347 ${srcdir}/ada/config-lang.in)
2348 if test x$have_gnat = xyes ; then
2349 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2350 fi
2351 ;;
2352 *)
2353 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2354 ;;
2355 esac
2356 fi
2357 ;;
2358 changequote([,])dnl
2359 esac
2360 done
2362 missing_languages=
2363 for expected_language in ${expected_languages} ..
2364 do
2365 if test "${expected_language}" != ..; then
2366 missing_language="${expected_language}"
2367 if test "${expected_language}" = "c" \
2368 || test "${expected_language}" = "all"; then
2369 missing_language=
2370 fi
2371 for found_language in ${found_languages} ..
2372 do
2373 if test "${found_language}" != ..; then
2374 if test "${expected_language}" = "${found_language}"; then
2375 missing_language=
2376 fi
2377 fi
2378 done
2379 if test "x${missing_language}" != x; then
2380 missing_languages="${missing_languages} ${missing_language}"
2381 fi
2382 fi
2383 done
2385 if test "x$missing_languages" != x; then
2386 AC_MSG_ERROR([
2387 The following requested languages were not found:${missing_languages}
2388 The following languages were available: c${found_languages}])
2389 fi
2391 # Make gthr-default.h if we have a thread file.
2392 gthread_flags=
2393 if test $thread_file != single; then
2394 rm -f gthr-default.h
2395 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2396 gthread_flags=-DHAVE_GTHR_DEFAULT
2397 fi
2398 AC_SUBST(gthread_flags)
2400 # Find out what GC implementation we want, or may, use.
2401 AC_ARG_WITH(gc,
2402 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2403 with the compiler],
2404 [case "$withval" in
2405 simple | page)
2406 GGC=ggc-$withval
2407 ;;
2408 *)
2409 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2410 ;;
2411 esac],
2412 [GGC=ggc-page])
2413 AC_SUBST(GGC)
2414 echo "Using $GGC for garbage collection."
2416 # Use the system's zlib library.
2417 zlibdir=-L../zlib
2418 zlibinc="-I\$(srcdir)/../zlib"
2419 AC_ARG_WITH(system-zlib,
2420 [ --with-system-zlib use installed libz],
2421 zlibdir=
2422 zlibinc=
2423 )
2424 AC_SUBST(zlibdir)
2425 AC_SUBST(zlibinc)
2427 dnl Very limited version of automake's enable-maintainer-mode
2429 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2430 dnl maintainer-mode is disabled by default
2431 AC_ARG_ENABLE(maintainer-mode,
2432 [ --enable-maintainer-mode
2433 enable make rules and dependencies not useful
2434 (and sometimes confusing) to the casual installer],
2435 maintainer_mode=$enableval,
2436 maintainer_mode=no)
2438 AC_MSG_RESULT($maintainer_mode)
2440 if test "$maintainer_mode" = "yes"; then
2441 MAINT=''
2442 else
2443 MAINT='#'
2444 fi
2445 AC_SUBST(MAINT)dnl
2447 # With Setjmp/Longjmp based exception handling.
2448 AC_ARG_ENABLE(sjlj-exceptions,
2449 [ --enable-sjlj-exceptions
2450 arrange to use setjmp/longjmp exception handling],
2451 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
2452 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
2453 [Define 0/1 to force the choice for exception handling model.])])
2455 # Use libunwind based exception handling.
2456 AC_ARG_ENABLE(libunwind-exceptions,
2457 [ --enable-libunwind-exceptions force use libunwind for exceptions],
2458 use_libunwind_exceptions=$enableval,
2459 use_libunwind_exceptions=no)
2460 if test x"$use_libunwind_exceptions" = xyes; then
2461 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
2462 [Define if gcc should use -lunwind.])
2463 fi
2465 # Make empty files to contain the specs and options for each language.
2466 # Then add #include lines to for a compiler that has specs and/or options.
2468 lang_specs_files=
2469 lang_options_files=
2470 lang_tree_files=
2471 for subdir in . $subdirs
2472 do
2473 if test -f $srcdir/$subdir/lang-specs.h; then
2474 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2475 fi
2476 if test -f $srcdir/$subdir/lang-options.h; then
2477 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2478 fi
2479 if test -f $srcdir/$subdir/$subdir-tree.def; then
2480 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2481 fi
2482 done
2484 # These (without "all_") are set in each config-lang.in.
2485 # `language' must be a single word so is spelled singularly.
2486 all_languages=
2487 all_boot_languages=
2488 all_compilers=
2489 all_stagestuff=
2490 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2491 # List of language makefile fragments.
2492 all_lang_makefiles=
2493 # Files for gengtype
2494 all_gtfiles="$target_gtfiles"
2495 # Files for gengtype with language
2496 all_gtfiles_files_langs=
2497 all_gtfiles_files_files=
2499 # Add the language fragments.
2500 # Languages are added via two mechanisms. Some information must be
2501 # recorded in makefile variables, these are defined in config-lang.in.
2502 # We accumulate them and plug them into the main Makefile.
2503 # The other mechanism is a set of hooks for each of the main targets
2504 # like `clean', `install', etc.
2506 language_fragments="Make-lang"
2507 language_hooks="Make-hooks"
2509 for s in .. $subdirs
2510 do
2511 if test $s != ".."
2512 then
2513 language=
2514 boot_language=
2515 compilers=
2516 stagestuff=
2517 outputs=
2518 gtfiles=
2519 . ${srcdir}/$s/config-lang.in
2520 if test "x$language" = x
2521 then
2522 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2523 exit 1
2524 fi
2525 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2526 if test -f ${srcdir}/$s/Makefile.in
2527 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2528 fi
2529 all_languages="$all_languages $language"
2530 if test "x$boot_language" = xyes
2531 then
2532 all_boot_languages="$all_boot_languages $language"
2533 fi
2534 all_compilers="$all_compilers $compilers"
2535 all_stagestuff="$all_stagestuff $stagestuff"
2536 all_outputs="$all_outputs $outputs"
2537 all_gtfiles="$all_gtfiles $gtfiles"
2538 for f in .. $gtfiles
2539 do
2540 if test $f != ".."
2541 then
2542 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2543 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2544 fi
2545 done
2546 fi
2547 done
2549 # Pick up gtfiles for c
2550 gtfiles=
2551 s="c"
2552 . ${srcdir}/c-config-lang.in
2553 all_gtfiles="$all_gtfiles $gtfiles"
2554 for f in .. $gtfiles
2555 do
2556 if test $f != ".."
2557 then
2558 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2559 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2560 fi
2561 done
2563 check_languages=
2564 for language in .. $all_languages
2565 do
2566 if test $language != ".."
2567 then
2568 check_languages="$check_languages check-$language"
2569 fi
2570 done
2572 # Since we can't use `::' targets, we link each language in
2573 # with a set of hooks, reached indirectly via lang.${target}.
2575 rm -f Make-hooks
2576 touch Make-hooks
2577 target_list="all.build all.cross start.encap rest.encap \
2578 info dvi generated-manpages \
2579 install-normal install-common install-info install-man \
2580 uninstall \
2581 mostlyclean clean distclean extraclean maintainer-clean \
2582 stage1 stage2 stage3 stage4"
2583 for t in $target_list
2584 do
2585 x=
2586 for lang in .. $all_languages
2587 do
2588 if test $lang != ".."; then
2589 x="$x $lang.$t"
2590 fi
2591 done
2592 echo "lang.$t: $x" >> Make-hooks
2593 done
2595 # Create .gdbinit.
2597 echo "dir ." > .gdbinit
2598 echo "dir ${srcdir}" >> .gdbinit
2599 if test x$gdb_needs_out_file_path = xyes
2600 then
2601 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2602 fi
2603 if test "x$subdirs" != x; then
2604 for s in $subdirs
2605 do
2606 echo "dir ${srcdir}/$s" >> .gdbinit
2607 done
2608 fi
2609 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2611 # Define variables host_canonical and build_canonical
2612 # because some Cygnus local changes in the Makefile depend on them.
2613 build_canonical=${build}
2614 host_canonical=${host}
2615 target_subdir=
2616 if test "${host}" != "${target}" ; then
2617 target_subdir=${target_alias}/
2618 fi
2619 AC_SUBST(build_canonical)
2620 AC_SUBST(host_canonical)
2621 AC_SUBST(target_subdir)
2623 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2624 # absolute path for gcc_tooldir based on inserting the number of up-directory
2625 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2626 # $(libsubdir)/@(unlibsubdir) based path.
2627 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2628 # make and thus we'd get different behavior depending on where we built the
2629 # sources.
2630 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2631 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2632 else
2633 changequote(<<, >>)dnl
2634 # An explanation of the sed strings:
2635 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2636 # -e 's|/$||' match a trailing forward slash and eliminates it
2637 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2638 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2639 #
2640 # (*) Note this pattern overwrites the first character of the string
2641 # with a forward slash if one is not already present. This is not a
2642 # problem because the exact names of the sub-directories concerned is
2643 # unimportant, just the number of them matters.
2644 #
2645 # The practical upshot of these patterns is like this:
2646 #
2647 # prefix exec_prefix result
2648 # ------ ----------- ------
2649 # /foo /foo/bar ../
2650 # /foo/ /foo/bar ../
2651 # /foo /foo/bar/ ../
2652 # /foo/ /foo/bar/ ../
2653 # /foo /foo/bar/ugg ../../
2654 #
2655 dollar='$$'
2656 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2657 changequote([, ])dnl
2658 fi
2659 AC_SUBST(gcc_tooldir)
2660 AC_SUBST(dollar)
2662 # Find a directory in which to install a shared libgcc.
2664 AC_ARG_ENABLE(version-specific-runtime-libs,
2665 [ --enable-version-specific-runtime-libs
2666 specify that runtime libraries should be
2667 installed in a compiler-specific directory])
2669 AC_ARG_WITH(slibdir,
2670 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2671 slibdir="$with_slibdir",
2672 if test "${enable_version_specific_runtime_libs+set}" = set; then
2673 slibdir='$(libsubdir)'
2674 elif test "$host" != "$target"; then
2675 slibdir='$(build_tooldir)/lib'
2676 else
2677 slibdir='$(libdir)'
2678 fi)
2679 AC_SUBST(slibdir)
2681 objdir=`${PWDCMD-pwd}`
2682 AC_SUBST(objdir)
2684 # Process the language and host/target makefile fragments.
2685 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2687 # Substitute configuration variables
2688 AC_SUBST(subdirs)
2689 AC_SUBST(srcdir)
2690 AC_SUBST(all_boot_languages)
2691 AC_SUBST(all_compilers)
2692 AC_SUBST(all_gtfiles)
2693 AC_SUBST(all_gtfiles_files_langs)
2694 AC_SUBST(all_gtfiles_files_files)
2695 AC_SUBST(all_lang_makefiles)
2696 AC_SUBST(all_languages)
2697 AC_SUBST(all_stagestuff)
2698 AC_SUBST(build_exeext)
2699 AC_SUBST(build_install_headers_dir)
2700 AC_SUBST(build_xm_file_list)
2701 AC_SUBST(build_xm_file)
2702 AC_SUBST(build_xm_defines)
2703 AC_SUBST(check_languages)
2704 AC_SUBST(cc_set_by_configure)
2705 AC_SUBST(quoted_cc_set_by_configure)
2706 AC_SUBST(cpp_install_dir)
2707 AC_SUBST(dep_host_xmake_file)
2708 AC_SUBST(dep_tmake_file)
2709 AC_SUBST(extra_headers_list)
2710 AC_SUBST(extra_objs)
2711 AC_SUBST(extra_parts)
2712 AC_SUBST(extra_passes)
2713 AC_SUBST(extra_programs)
2714 AC_SUBST(float_h_file)
2715 AC_SUBST(gcc_config_arguments)
2716 AC_SUBST(gcc_gxx_include_dir)
2717 AC_SUBST(libstdcxx_incdir)
2718 AC_SUBST(gcc_version)
2719 AC_SUBST(gcc_version_full)
2720 AC_SUBST(gcc_version_trigger)
2721 AC_SUBST(host_exeext)
2722 AC_SUBST(host_extra_gcc_objs)
2723 AC_SUBST(host_xm_file_list)
2724 AC_SUBST(host_xm_file)
2725 AC_SUBST(host_xm_defines)
2726 AC_SUBST(install)
2727 AC_SUBST(lang_options_files)
2728 AC_SUBST(lang_specs_files)
2729 AC_SUBST(lang_tree_files)
2730 AC_SUBST(local_prefix)
2731 AC_SUBST(md_file)
2732 AC_SUBST(objc_boehm_gc)
2733 AC_SUBST(out_file)
2734 AC_SUBST(out_object_file)
2735 AC_SUBST(stage_prefix_set_by_configure)
2736 AC_SUBST(quoted_stage_prefix_set_by_configure)
2737 AC_SUBST(symbolic_link)
2738 AC_SUBST(thread_file)
2739 AC_SUBST(tm_file_list)
2740 AC_SUBST(tm_file)
2741 AC_SUBST(tm_defines)
2742 AC_SUBST(tm_p_file_list)
2743 AC_SUBST(tm_p_file)
2744 AC_SUBST(xm_file)
2745 AC_SUBST(xm_defines)
2746 AC_SUBST(target_alias)
2747 AC_SUBST(c_target_objs)
2748 AC_SUBST(cxx_target_objs)
2749 AC_SUBST(target_cpu_default)
2751 AC_SUBST_FILE(target_overrides)
2752 AC_SUBST_FILE(host_overrides)
2753 AC_SUBST_FILE(language_fragments)
2754 AC_SUBST_FILE(language_hooks)
2756 # Echo that links are built
2757 if test x$host = x$target
2758 then
2759 str1="native "
2760 else
2761 str1="cross-"
2762 str2=" from $host"
2763 fi
2765 if test x$host != x$build
2766 then
2767 str3=" on a $build system"
2768 fi
2770 if test "x$str2" != x || test "x$str3" != x
2771 then
2772 str4=
2773 fi
2775 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2777 if test "x$str2" != x || test "x$str3" != x
2778 then
2779 echo " ${str2}${str3}." 1>&2
2780 fi
2782 # Truncate the target if necessary
2783 if test x$host_truncate_target != x; then
2784 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2785 fi
2787 # Configure the subdirectories
2788 # AC_CONFIG_SUBDIRS($subdirs)
2790 # Create the Makefile
2791 # and configure language subdirectories
2792 AC_OUTPUT($all_outputs,
2793 [
2794 case x$CONFIG_HEADERS in
2795 xauto-host.h:config.in)
2796 echo > cstamp-h ;;
2797 esac
2798 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2799 # bootstrapping and the installation procedure can still use
2800 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2801 # FLAGS_TO_PASS has been modified to solve the problem there.
2802 # This is virtually a duplicate of what happens in configure.lang; we do
2803 # an extra check to make sure this only happens if ln -s can be used.
2804 if test "$symbolic_link" = "ln -s"; then
2805 for d in .. ${subdirs} fixinc ; do
2806 if test $d != ..; then
2807 STARTDIR=`${PWDCMD-pwd}`
2808 cd $d
2809 for t in stage1 stage2 stage3 stage4 include
2810 do
2811 rm -f $t
2812 $symbolic_link ../$t $t 2>/dev/null
2813 done
2814 cd $STARTDIR
2815 fi
2816 done
2817 else true ; fi
2818 # Avoid having to add intl to our include paths.
2819 if test -f intl/libintl.h; then
2820 echo creating libintl.h
2821 echo '#include "intl/libintl.h"' >libintl.h
2822 fi
2823 ],
2824 [subdirs='$subdirs'
2825 symbolic_link='$symbolic_link'
2826 ])