| blob | 9cacc4ad9dba61fa1941e4aff014107e067cf305 |
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 # Determine whether or not multilibs are enabled.
180 AC_ARG_ENABLE(multilib,
181 [ --enable-multilib enable library support for multiple ABIs],
182 [], [enable_multilib=yes])
183 AC_SUBST(enable_multilib)
185 # Enable expensive internal checks
186 AC_ARG_ENABLE(checking,
187 [ --enable-checking[=LIST]
188 enable expensive run-time checks. With LIST,
189 enable only specific categories of checks.
190 Categories are: misc,tree,rtl,gc,gcac; default
191 is misc,tree,gc],
192 [ac_checking=
193 ac_tree_checking=
194 ac_rtl_checking=
195 ac_gc_checking=
196 ac_gc_always_collect=
197 case "${enableval}" in
198 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;;
199 no) ;;
200 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
201 set fnord $enableval; shift
202 IFS="$ac_save_IFS"
203 for check
204 do
205 case $check in
206 misc) ac_checking=1 ;;
207 tree) ac_tree_checking=1 ;;
208 rtl) ac_rtl_checking=1 ;;
209 gc) ac_gc_checking=1 ;;
210 gcac) ac_gc_always_collect=1 ;;
211 *) AC_MSG_ERROR(unknown check category $check) ;;
212 esac
213 done
214 ;;
215 esac
216 ],
217 [])
218 if test x$ac_checking != x ; then
219 AC_DEFINE(ENABLE_CHECKING, 1,
220 [Define if you want more run-time sanity checks. This one gets a grab
221 bag of miscellaneous but relatively cheap checks.])
222 fi
223 if test x$ac_tree_checking != x ; then
224 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
225 [Define if you want all operations on trees (the basic data
226 structure of the front ends) to be checked for dynamic type safety
227 at runtime. This is moderately expensive.])
228 fi
229 if test x$ac_rtl_checking != x ; then
230 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
231 [Define if you want all operations on RTL (the basic data structure
232 of the optimizer and back end) to be checked for dynamic type safety
233 at runtime. This is quite expensive.])
234 fi
235 if test x$ac_gc_checking != x ; then
236 AC_DEFINE(ENABLE_GC_CHECKING, 1,
237 [Define if you want the garbage collector to do object poisoning and
238 other memory allocation checks. This is quite expensive.])
239 fi
240 if test x$ac_gc_always_collect != x ; then
241 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
242 [Define if you want the garbage collector to operate in maximally
243 paranoid mode, validating the entire heap and collecting garbage at
244 every opportunity. This is extremely expensive.])
245 fi
248 AC_ARG_ENABLE(cpp,
249 [ --disable-cpp don't provide a user-visible C preprocessor],
250 [], [enable_cpp=yes])
252 AC_ARG_WITH(cpp_install_dir,
253 [ --with-cpp-install-dir=DIR
254 install the user visible C preprocessor in DIR
255 (relative to PREFIX) as well as PREFIX/bin],
256 [if test x$withval = xyes; then
257 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
258 elif test x$withval != xno; then
259 cpp_install_dir=$withval
260 fi])
262 # Enable __cxa_atexit for C++.
263 AC_ARG_ENABLE(__cxa_atexit,
264 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
265 [], [])
266 if test x$enable___cxa_atexit = xyes; then
267 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
268 [Define if you want to use __cxa_atexit, rather than atexit, to
269 register C++ destructors for local statics and global objects.
270 This is essential for fully standards-compliant handling of
271 destructors, but requires __cxa_atexit in libc.])
272 fi
274 # Enable Multibyte Characters for C/C++
275 AC_ARG_ENABLE(c-mbchar,
276 [ --enable-c-mbchar enable multibyte characters for C and C++],
277 if test x$enable_c_mbchar != xno; then
278 AC_DEFINE(MULTIBYTE_CHARS, 1,
279 [Define if you want the C and C++ compilers to support multibyte
280 character sets for source code.])
281 fi)
283 # Enable threads
284 # Pass with no value to take the default
285 # Pass with a value to specify a thread package
286 AC_ARG_ENABLE(threads,
287 [ --enable-threads enable thread usage for target GCC
288 --enable-threads=LIB use LIB thread package for target GCC],,
289 enable_threads='')
291 enable_threads_flag=$enable_threads
292 # Check if a valid thread package
293 case x${enable_threads_flag} in
294 x | xno)
295 # No threads
296 target_thread_file='single'
297 ;;
298 xyes)
299 # default
300 target_thread_file=''
301 ;;
302 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
303 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
304 target_thread_file=$enable_threads_flag
305 ;;
306 *)
307 echo "$enable_threads is an unknown thread package" 1>&2
308 exit 1
309 ;;
310 esac
312 AC_ARG_ENABLE(objc-gc,
313 [ --enable-objc-gc enable the use of Boehm's garbage collector with
314 the GNU Objective-C runtime],
315 if test x$enable_objc_gc = xno; then
316 objc_boehm_gc=''
317 else
318 objc_boehm_gc=1
319 fi,
320 objc_boehm_gc='')
322 AC_ARG_WITH(dwarf2,
323 [ --with-dwarf2 force the default debug format to be DWARF 2],
324 dwarf2="$with_dwarf2",
325 dwarf2=no)
327 AC_ARG_ENABLE(shared,
328 [ --disable-shared don't provide a shared libgcc],
329 [
330 case $enable_shared in
331 yes | no) ;;
332 *)
333 enable_shared=no
334 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
335 for pkg in $enableval; do
336 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
337 enable_shared=yes
338 fi
339 done
340 IFS="$ac_save_ifs"
341 ;;
342 esac
343 ], [enable_shared=yes])
344 AC_SUBST(enable_shared)
346 # Determine the host, build, and target systems
347 AC_CANONICAL_SYSTEM
349 # Set program_transform_name
350 AC_ARG_PROGRAM
352 # Find the native compiler
353 AC_PROG_CC
354 AC_PROG_CC_C_O
355 # autoconf is lame and doesn't give us any substitution variable for this.
356 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
357 NO_MINUS_C_MINUS_O=yes
358 else
359 OUTPUT_OPTION='-o $@'
360 fi
361 AC_SUBST(NO_MINUS_C_MINUS_O)
362 AC_SUBST(OUTPUT_OPTION)
364 # See if GNAT has been installed
365 gcc_AC_PROG_GNAT
367 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
368 ac_cv_prog_cc_no_long_long,
369 [save_CFLAGS="$CFLAGS"
370 CFLAGS="-Wno-long-long"
371 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
372 ac_cv_prog_cc_no_long_long=no)
373 CFLAGS="$save_CFLAGS"])
375 if test x$have_gnat != xno ; then
376 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
377 ac_cv_prog_adac_no_long_long,
378 [cat >conftest.adb <<EOF
379 procedure conftest is begin null; end conftest;
380 EOF
381 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
382 ac_cv_prog_adac_no_long_long=yes
383 else
384 ac_cv_prog_adac_no_long_long=no
385 fi
386 rm -f conftest*])
387 else
388 ac_cv_prog_adac_no_long_long=yes
389 fi
391 strict1_warn=
392 if test $ac_cv_prog_cc_no_long_long = yes && \
393 test $ac_cv_prog_adac_no_long_long = yes ; then
394 strict1_warn="-pedantic -Wno-long-long"
395 fi
396 AC_SUBST(strict1_warn)
398 AC_PROG_CPP
399 AC_C_INLINE
400 gcc_AC_C_VOLATILE
402 gcc_AC_C_LONG_DOUBLE
403 gcc_AC_C_LONG_LONG
404 gcc_AC_C__BOOL
406 # sizeof(char) is 1 by definition.
407 gcc_AC_COMPILE_CHECK_SIZEOF(short)
408 gcc_AC_COMPILE_CHECK_SIZEOF(int)
409 gcc_AC_COMPILE_CHECK_SIZEOF(long)
410 if test $ac_cv_c_long_long = yes; then
411 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
412 fi
413 if test $ac_cv_c___int64 = yes; then
414 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
415 fi
417 gcc_AC_C_CHARSET
419 # If the native compiler is GCC, we can enable warnings even in stage1.
420 # That's useful for people building cross-compilers, or just running a
421 # quick `make'.
422 warn_cflags=
423 if test "x$GCC" = "xyes"; then
424 warn_cflags='$(GCC_WARN_CFLAGS)'
425 fi
426 AC_SUBST(warn_cflags)
428 # Stage specific cflags for build.
429 stage1_cflags=
430 case $build in
431 vax-*-*)
432 if test x$GCC = xyes
433 then
434 stage1_cflags="-Wa,-J"
435 else
436 stage1_cflags="-J"
437 fi
438 ;;
439 powerpc-*-darwin*)
440 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
441 # sources; use -no-cpp-precomp to get to GNU cpp.
442 # Apple's GCC has bugs in designated initializer handling, so disable
443 # that too.
444 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
445 ;;
446 esac
447 AC_SUBST(stage1_cflags)
449 AC_PROG_MAKE_SET
451 AC_MSG_CHECKING([whether a default assembler was specified])
452 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
453 if test x"$gas_flag" = x"no"; then
454 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
455 else
456 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
457 fi
458 else
459 AC_MSG_RESULT(no)
460 fi
462 AC_MSG_CHECKING([whether a default linker was specified])
463 if test x"${DEFAULT_LINKER+set}" = x"set"; then
464 if test x"$gnu_ld_flag" = x"no"; then
465 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
466 else
467 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
468 fi
469 else
470 AC_MSG_RESULT(no)
471 fi
473 AC_MSG_CHECKING(for GNU C library)
474 AC_CACHE_VAL(gcc_cv_glibc,
475 [AC_TRY_COMPILE(
476 [#include <features.h>],[
477 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
478 #error Not a GNU C library system
479 #endif],
480 [gcc_cv_glibc=yes],
481 gcc_cv_glibc=no)])
482 AC_MSG_RESULT($gcc_cv_glibc)
483 if test $gcc_cv_glibc = yes; then
484 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
485 fi
487 # Find some useful tools
488 AC_PROG_AWK
489 gcc_AC_PROG_LN
490 gcc_AC_PROG_LN_S
491 AC_PROG_RANLIB
492 gcc_AC_PROG_INSTALL
494 AC_HEADER_STDC
495 AC_HEADER_TIME
496 gcc_AC_HEADER_STDBOOL
497 gcc_AC_HEADER_STRING
498 AC_HEADER_SYS_WAIT
499 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
500 fcntl.h unistd.h sys/file.h sys/time.h \
501 sys/resource.h sys/param.h sys/times.h sys/stat.h \
502 direct.h malloc.h langinfo.h)
504 # Check for thread headers.
505 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
506 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
508 # These tests can't be done till we know if we have limits.h.
509 gcc_AC_C_CHAR_BIT
510 gcc_AC_C_COMPILE_ENDIAN
511 gcc_AC_C_FLOAT_FORMAT
513 # See if we have the mktemp command.
514 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
516 # Do we have a single-tree copy of texinfo?
517 if test -f $srcdir/../texinfo/Makefile.in; then
518 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
519 gcc_cv_prog_makeinfo_modern=yes
520 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
521 else
522 # See if makeinfo has been installed and is modern enough
523 # that we can use it.
524 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
525 [GNU texinfo.* \([0-9][0-9.]*\)],
526 [4.[1-9]*])
527 fi
529 if test $gcc_cv_prog_makeinfo_modern = no; then
530 AC_MSG_WARN([
531 *** Makeinfo is missing or too old.
532 *** Info documentation will not be built.])
533 BUILD_INFO=
534 else
535 BUILD_INFO=info AC_SUBST(BUILD_INFO)
536 fi
538 # Is pod2man recent enough to regenerate manpages?
539 AC_MSG_CHECKING([for recent Pod::Man])
540 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
541 AC_MSG_RESULT(yes)
542 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
543 else
544 AC_MSG_RESULT(no)
545 GENERATED_MANPAGES=
546 fi
548 # How about lex?
549 dnl Don't use AC_PROG_LEX; we insist on flex.
550 dnl LEXLIB is not useful in gcc.
551 if test -f $srcdir/../flex/skel.c; then
552 FLEX='$(objdir)/../flex/flex'
553 else
554 AC_CHECK_PROG(FLEX, flex, flex, false)
555 fi
557 # Bison?
558 # The -L switch is so bison can find its skeleton file.
559 if test -f $srcdir/../bison/bison.simple; then
560 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
561 else
562 AC_CHECK_PROG(BISON, bison, bison, false)
563 fi
565 # These libraries may be used by collect2.
566 # We may need a special search path to get them linked.
567 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
568 [save_LIBS="$LIBS"
569 for libs in '' -lld -lmld \
570 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
571 '-L/usr/lib/cmplrs/cc3.11 -lmld'
572 do
573 LIBS="$libs"
574 AC_TRY_LINK_FUNC(ldopen,
575 [gcc_cv_collect2_libs="$libs"; break])
576 done
577 LIBS="$save_LIBS"
578 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
579 case $gcc_cv_collect2_libs in
580 "none required") ;;
581 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
582 esac
583 AC_SUBST(COLLECT2_LIBS)
585 # When building Ada code on Alpha, we need exc_resume which is usually in
586 # -lexc. So test for it.
587 save_LIBS="$LIBS"
588 LIBS=
589 AC_SEARCH_LIBS(exc_resume, exc)
590 GNAT_LIBEXC="$LIBS"
591 LIBS="$save_LIBS"
592 AC_SUBST(GNAT_LIBEXC)
594 # See if the stage1 system preprocessor understands the ANSI C
595 # preprocessor stringification operator. (Used by symcat.h.)
596 AC_C_STRINGIZE
598 # Use <inttypes.h> only if it exists,
599 # doesn't clash with <sys/types.h>, and declares intmax_t.
600 AC_MSG_CHECKING(for inttypes.h)
601 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
602 [AC_TRY_COMPILE(
603 [#include <sys/types.h>
604 #include <inttypes.h>],
605 [intmax_t i = -1;],
606 [gcc_cv_header_inttypes_h=yes],
607 gcc_cv_header_inttypes_h=no)])
608 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
609 if test $gcc_cv_header_inttypes_h = yes; then
610 AC_DEFINE(HAVE_INTTYPES_H, 1,
611 [Define if you have a working <inttypes.h> header file.])
612 fi
614 dnl Disabled until we have a complete test for buggy enum bitfields.
615 dnl gcc_AC_C_ENUM_BF_UNSIGNED
617 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
618 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
619 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat)
621 AC_CHECK_TYPE(ssize_t, int)
623 # Try to determine the array type of the second argument of getgroups
624 # for the target system (int or gid_t).
625 AC_TYPE_GETGROUPS
626 if test "${target}" = "${build}"; then
627 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
628 else
629 case "${target}" in
630 # This condition may need some tweaking. It should include all
631 # targets where the array type of the second argument of getgroups
632 # is int and the type of gid_t is not equivalent to int.
633 *-*-sunos* | *-*-ultrix*)
634 TARGET_GETGROUPS_T=int
635 ;;
636 *)
637 TARGET_GETGROUPS_T=gid_t
638 ;;
639 esac
640 fi
641 AC_SUBST(TARGET_GETGROUPS_T)
643 gcc_AC_FUNC_PRINTF_PTR
645 case "${host}" in
646 *-*-uwin*)
647 AC_MSG_ERROR([
648 *** UWIN may not be used as a host platform because
649 *** linking with posix.dll is not allowed by the GNU GPL])
650 ;;
651 *-*-*vms*)
652 # Under VMS, vfork works very different than on Unix. The standard test
653 # won't work, and it isn't easily adaptable. It makes more sense to
654 # just force it.
655 ac_cv_func_vfork_works=yes
656 ;;
657 esac
658 AC_FUNC_VFORK
659 AC_FUNC_MMAP_ANYWHERE
660 AC_FUNC_MMAP_FILE
662 AM_ICONV
664 # We will need to find libiberty.h and ansidecl.h
665 saved_CFLAGS="$CFLAGS"
666 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
667 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
668 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
669 fprintf_unlocked strstr errno \
670 malloc realloc calloc free basename getopt clock, , ,[
671 #include "ansidecl.h"
672 #include "system.h"])
674 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
675 #include "ansidecl.h"
676 #include "system.h"
677 #ifdef HAVE_SYS_RESOURCE_H
678 #include <sys/resource.h>
679 #endif
680 ])
682 gcc_AC_CHECK_DECLS(times, , ,[
683 #include "ansidecl.h"
684 #include "system.h"
685 #ifdef HAVE_SYS_TIMES_H
686 #include <sys/times.h>
687 #endif
688 ])
690 # More time-related stuff.
691 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
692 AC_TRY_COMPILE([
693 #include "ansidecl.h"
694 #include "system.h"
695 #ifdef HAVE_SYS_TIMES_H
696 #include <sys/times.h>
697 #endif
698 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
699 if test $ac_cv_struct_tms = yes; then
700 AC_DEFINE(HAVE_STRUCT_TMS, 1,
701 [Define if <sys/times.h> defines struct tms.])
702 fi
704 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
705 # revisit after autoconf 2.50.
706 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
707 AC_TRY_COMPILE([
708 #include "ansidecl.h"
709 #include "system.h"
710 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
711 if test $gcc_cv_type_clock_t = yes; then
712 AC_DEFINE(HAVE_CLOCK_T, 1,
713 [Define if <time.h> defines clock_t.])
714 fi
716 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
717 CFLAGS="$saved_CFLAGS"
719 # mkdir takes a single argument on some systems.
720 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
722 # File extensions
723 manext='.1'
724 objext='.o'
725 AC_SUBST(manext)
726 AC_SUBST(objext)
728 build_xm_file=
729 build_xm_defines=
730 build_install_headers_dir=install-headers-tar
731 build_exeext=
732 host_xm_file=
733 host_xm_defines=
734 host_xmake_file=
735 host_truncate_target=
736 host_exeext=
738 # Decode the host machine, then the target machine.
739 # For the host machine, we save the xm_file variable as host_xm_file;
740 # then we decode the target machine and forget everything else
741 # that came from the host machine.
742 for machine in $build $host $target; do
743 . ${srcdir}/config.gcc
744 done
746 extra_objs="${host_extra_objs} ${extra_objs}"
748 # Default the target-machine variables that were not explicitly set.
749 if test x"$tm_file" = x
750 then tm_file=$cpu_type/$cpu_type.h; fi
752 if test x"$extra_headers" = x
753 then extra_headers=; fi
755 if test x$md_file = x
756 then md_file=$cpu_type/$cpu_type.md; fi
758 if test x$out_file = x
759 then out_file=$cpu_type/$cpu_type.c; fi
761 if test x"$tmake_file" = x
762 then tmake_file=$cpu_type/t-$cpu_type
763 fi
765 if test x"$dwarf2" = xyes
766 then tm_file="$tm_file tm-dwarf2.h"
767 fi
769 if test x$float_format = x
770 then float_format=i64
771 fi
773 if test $float_format = none
774 then float_h_file=Makefile.in
775 else float_h_file=float-$float_format.h
776 fi
778 # Handle cpp installation.
779 if test x$enable_cpp != xno
780 then
781 tmake_file="$tmake_file t-install-cpp"
782 fi
784 # Say what files are being used for the output code and MD file.
785 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
786 echo "Using \`$srcdir/config/$md_file' as machine description file."
788 # If any of the xm_file variables contain nonexistent files, warn
789 # about them and drop them.
791 bx=
792 for x in $build_xm_file; do
793 if test -f $srcdir/config/$x
794 then bx="$bx $x"
795 else AC_MSG_WARN($srcdir/config/$x does not exist.)
796 fi
797 done
798 build_xm_file="$bx"
800 hx=
801 for x in $host_xm_file; do
802 if test -f $srcdir/config/$x
803 then hx="$hx $x"
804 else AC_MSG_WARN($srcdir/config/$x does not exist.)
805 fi
806 done
807 host_xm_file="$hx"
809 tx=
810 for x in $xm_file; do
811 if test -f $srcdir/config/$x
812 then tx="$tx $x"
813 else AC_MSG_WARN($srcdir/config/$x does not exist.)
814 fi
815 done
816 xm_file="$tx"
818 count=a
819 for f in $tm_file; do
820 count=${count}x
821 done
822 if test $count = ax; then
823 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
824 else
825 echo "Using the following target machine macro files:"
826 for f in $tm_file; do
827 echo " $srcdir/config/$f"
828 done
829 fi
831 count=a
832 for f in $host_xm_file; do
833 count=${count}x
834 done
835 if test $count = a; then
836 :
837 elif test $count = ax; then
838 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
839 else
840 echo "Using the following host machine macro files:"
841 for f in $host_xm_file; do
842 echo " $srcdir/config/$f"
843 done
844 fi
846 if test "$host_xm_file" != "$build_xm_file"; then
847 count=a
848 for f in $build_xm_file; do
849 count=${count}x
850 done
851 if test $count = a; then
852 :
853 elif test $count = ax; then
854 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
855 else
856 echo "Using the following build machine macro files:"
857 for f in $build_xm_file; do
858 echo " $srcdir/config/$f"
859 done
860 fi
861 fi
863 if test x$thread_file = x; then
864 if test x$target_thread_file != x; then
865 thread_file=$target_thread_file
866 else
867 thread_file='single'
868 fi
869 fi
871 # auto-host.h is the file containing items generated by autoconf and is
872 # the first file included by config.h.
873 # If host=build, it is correct to have hconfig include auto-host.h
874 # as well. If host!=build, we are in error and need to do more
875 # work to find out the build config parameters.
876 if test x$host = x$build
877 then
878 build_auto=auto-host.h
879 FORBUILD=..
880 else
881 # We create a subdir, then run autoconf in the subdir.
882 # To prevent recursion we set host and build for the new
883 # invocation of configure to the build for this invocation
884 # of configure.
885 tempdir=build.$$
886 rm -rf $tempdir
887 mkdir $tempdir
888 cd $tempdir
889 case ${srcdir} in
890 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
891 *) realsrcdir=../${srcdir};;
892 esac
893 saved_CFLAGS="${CFLAGS}"
894 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
895 ${realsrcdir}/configure \
896 --target=$target_alias --host=$build_alias --build=$build_alias
897 CFLAGS="${saved_CFLAGS}"
899 # We just finished tests for the build machine, so rename
900 # the file auto-build.h in the gcc directory.
901 mv auto-host.h ../auto-build.h
902 cd ..
903 rm -rf $tempdir
904 build_auto=auto-build.h
905 FORBUILD=../$build
906 fi
907 AC_SUBST(FORBUILD)
909 tm_file="${tm_file} defaults.h"
910 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
911 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
912 xm_file="ansidecl.h ${xm_file} ${tm_file}"
914 # Truncate the target if necessary
915 if test x$host_truncate_target != x; then
916 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
917 fi
919 # Get the version trigger filename from the toplevel
920 if test "${with_gcc_version_trigger+set}" = set; then
921 gcc_version_trigger=$with_gcc_version_trigger
922 else
923 gcc_version_trigger=${srcdir}/version.c
924 fi
925 changequote(,)dnl
926 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
927 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
929 # Compile in configure arguments.
930 if test -f configargs.h ; then
931 # Being re-configured.
932 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
933 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
934 else
935 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
936 fi
937 cat > configargs.h <<EOF
938 /* Generated automatically. */
939 static const char configuration_arguments[] = "$gcc_config_arguments";
940 static const char thread_model[] = "$thread_file";
941 EOF
942 changequote([,])dnl
944 # Internationalization
945 PACKAGE=gcc
946 VERSION="$gcc_version"
947 AC_SUBST(PACKAGE)
948 AC_SUBST(VERSION)
950 # Enable NLS support by default
951 AC_ARG_ENABLE(nls,
952 [ --enable-nls use Native Language Support (default)],
953 , enable_nls=yes)
955 # if cross compiling, disable NLS support.
956 # It's not worth the trouble, at least for now.
958 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
959 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
960 enable_nls=no
961 fi
963 AM_GNU_GETTEXT
965 # Windows32 Registry support for specifying GCC installation paths.
966 AC_ARG_ENABLE(win32-registry,
967 [ --disable-win32-registry
968 disable lookup of installation paths in the
969 Registry on Windows hosts
970 --enable-win32-registry enable registry lookup (default)
971 --enable-win32-registry=KEY
972 use KEY instead of GCC version as the last portion
973 of the registry key],,)
974 case $host_os in
975 win32 | pe | cygwin* | mingw32* | uwin*)
976 AC_MSG_CHECKING(whether windows registry support is requested)
977 if test "x$enable_win32_registry" != xno; then
978 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
979 [Define to 1 if installation paths should be looked up in Windows32
980 Registry. Ignored on non windows32 hosts.])
981 AC_MSG_RESULT(yes)
982 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
983 else
984 AC_MSG_RESULT(no)
985 fi
987 # Check if user specified a different registry key.
988 case "x${enable_win32_registry}" in
989 x | xyes)
990 # default.
991 gcc_cv_win32_registry_key="$VERSION"
992 ;;
993 xno)
994 # no registry lookup.
995 gcc_cv_win32_registry_key=''
996 ;;
997 *)
998 # user-specified key.
999 gcc_cv_win32_registry_key="$enable_win32_registry"
1000 ;;
1001 esac
1003 if test "x$enable_win32_registry" != xno; then
1004 AC_MSG_CHECKING(registry key on windows hosts)
1005 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1006 [Define to be the last portion of registry key on windows hosts.])
1007 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1008 fi
1009 ;;
1010 esac
1012 # Get an absolute path to the GCC top-level source directory
1013 holddir=`pwd`
1014 cd $srcdir
1015 topdir=`pwd`
1016 cd $holddir
1018 # Conditionalize the makefile for this host machine.
1019 # Make-host contains the concatenation of all host makefile fragments
1020 # [there can be more than one]. This file is built by configure.frag.
1021 host_overrides=Make-host
1022 dep_host_xmake_file=
1023 for f in .. ${host_xmake_file}
1024 do
1025 if test -f ${srcdir}/config/$f
1026 then
1027 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1028 fi
1029 done
1031 # Conditionalize the makefile for this target machine.
1032 # Make-target contains the concatenation of all host makefile fragments
1033 # [there can be more than one]. This file is built by configure.frag.
1034 target_overrides=Make-target
1035 dep_tmake_file=
1036 for f in .. ${tmake_file}
1037 do
1038 if test -f ${srcdir}/config/$f
1039 then
1040 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1041 fi
1042 done
1044 # If the host doesn't support symlinks, modify CC in
1045 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1046 # Otherwise, we can use "CC=$(CC)".
1047 rm -f symtest.tem
1048 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1049 then
1050 cc_set_by_configure="\$(CC)"
1051 quoted_cc_set_by_configure="\$(CC)"
1052 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1053 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1054 else
1055 rm -f symtest.tem
1056 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1057 then
1058 symbolic_link="cp -p"
1059 else
1060 symbolic_link="cp"
1061 fi
1062 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1063 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1064 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1065 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1066 fi
1067 rm -f symtest.tem
1069 out_object_file=`basename $out_file .c`.o
1071 tm_file_list=
1072 for f in $tm_file; do
1073 case $f in
1074 ansidecl.h )
1075 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1076 defaults.h )
1077 tm_file_list="${tm_file_list} $f" ;;
1078 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1079 esac
1080 done
1082 tm_p_file_list=
1083 for f in $tm_p_file; do
1084 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1085 done
1087 host_xm_file_list=
1088 for f in $host_xm_file; do
1089 case $f in
1090 ansidecl.h )
1091 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1092 auto-host.h | defaults.h )
1093 host_xm_file_list="${host_xm_file_list} $f" ;;
1094 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1095 esac
1096 done
1098 build_xm_file_list=
1099 for f in $build_xm_file; do
1100 case $f in
1101 ansidecl.h )
1102 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1103 auto-build.h | auto-host.h | defaults.h )
1104 build_xm_file_list="${build_xm_file_list} $f" ;;
1105 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1106 esac
1107 done
1109 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1110 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1111 CROSS= AC_SUBST(CROSS)
1112 ALL=all.internal AC_SUBST(ALL)
1113 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1114 if test x$host != x$target
1115 then
1116 CROSS="-DCROSS_COMPILE"
1117 ALL=all.cross
1118 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1119 fi
1121 # If this is a cross-compiler that does not
1122 # have its own set of headers then define
1123 # inhibit_libc
1125 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1126 # This prevents libgcc2 from containing any code which requires libc
1127 # support.
1128 inhibit_libc=
1129 if [test x$host != x$target] && [test x$with_headers = x]; then
1130 inhibit_libc=-Dinhibit_libc
1131 else
1132 if [test x$with_newlib = xyes]; then
1133 inhibit_libc=-Dinhibit_libc
1134 fi
1135 fi
1136 AC_SUBST(inhibit_libc)
1138 # When building gcc with a cross-compiler, we need to adjust things so
1139 # that the generator programs are still built with the native compiler.
1140 # Also, we cannot run fixincludes or fix-header.
1141 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1142 # FIXME.
1144 # These are the normal (build=host) settings:
1145 HOST_PREFIX= AC_SUBST(HOST_PREFIX)
1146 HOST_PREFIX_1=ignore- AC_SUBST(HOST_PREFIX_1)
1147 HOST_CC='$(CC)' AC_SUBST(HOST_CC)
1148 HOST_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(HOST_CFLAGS)
1150 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1151 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1153 # And these apply if build != host.
1154 if test x$build != x$host
1155 then
1156 HOST_PREFIX=build-
1157 HOST_PREFIX_1=build-
1158 HOST_CC='$(CC_FOR_BUILD)'
1159 HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1161 STMP_FIXINC=
1162 STMP_FIXPROTO=
1163 fi
1165 # Expand extra_headers to include complete path.
1166 # This substitutes for lots of t-* files.
1167 extra_headers_list=
1168 if test "x$extra_headers" = x
1169 then true
1170 else
1171 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1172 for file in $extra_headers;
1173 do
1174 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1175 done
1176 fi
1178 if test x$use_collect2 = xno; then
1179 use_collect2=
1180 fi
1182 # Add a definition of USE_COLLECT2 if system wants one.
1183 if test x$use_collect2 != x
1184 then
1185 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1186 xm_defines="${xm_defines} USE_COLLECT2"
1187 fi
1189 # If we have gas in the build tree, make a link to it.
1190 if test -f ../gas/Makefile; then
1191 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1192 fi
1194 # If we have nm and objdump in the build tree, make a link to them.
1195 if test -f ../binutils/Makefile; then
1196 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1197 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1198 fi
1200 # If we have ld in the build tree, make a link to it.
1201 if test -f ../ld/Makefile; then
1202 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1203 fi
1205 # Figure out what assembler we will be using.
1206 AC_MSG_CHECKING(what assembler to use)
1207 gcc_cv_as=
1208 gcc_cv_gas_major_version=
1209 gcc_cv_gas_minor_version=
1210 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1211 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1212 if test -x "$DEFAULT_ASSEMBLER"; then
1213 gcc_cv_as="$DEFAULT_ASSEMBLER"
1214 elif test -x "$AS"; then
1215 gcc_cv_as="$AS"
1216 elif test -x as$host_exeext; then
1217 # Build using assembler in the current directory.
1218 gcc_cv_as=./as$host_exeext
1219 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1220 # Single tree build which includes gas.
1221 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
1222 do
1223 changequote(,)dnl
1224 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1225 changequote([,])dnl
1226 if test x$gcc_cv_gas_version != x; then
1227 break
1228 fi
1229 done
1230 changequote(,)dnl
1231 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1232 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1233 gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.[0-9]*\.\([0-9]*\)"`
1234 changequote([,])dnl
1235 fi
1237 if test "x$gcc_cv_as" = x; then
1238 # Search the same directories that the installed compiler will
1239 # search. Else we may find the wrong assembler and lose. If we
1240 # do not find a suitable assembler binary, then try the user's
1241 # path.
1242 #
1243 # Also note we have to check MD_EXEC_PREFIX before checking the
1244 # user's path. Unfortunately, there is no good way to get at the
1245 # value of MD_EXEC_PREFIX here. So we do a brute force search
1246 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1247 # to be fixed as part of the make/configure rewrite too.
1249 if test "x$exec_prefix" = xNONE; then
1250 if test "x$prefix" = xNONE; then
1251 test_prefix=/usr/local
1252 else
1253 test_prefix=$prefix
1254 fi
1255 else
1256 test_prefix=$exec_prefix
1257 fi
1259 # If the loop below does not find an assembler, then use whatever
1260 # one we can find in the users's path.
1261 # user's path.
1262 if test "x$program_prefix" != xNONE; then
1263 gcc_cv_as=${program_prefix}as$host_exeext
1264 else
1265 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1266 fi
1268 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1269 $test_prefix/lib/gcc-lib/$target_alias \
1270 /usr/lib/gcc/$target_alias/$gcc_version \
1271 /usr/lib/gcc/$target_alias \
1272 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1273 $test_prefix/$target_alias/bin"
1275 if test x$host = x$target; then
1276 test_dirs="$test_dirs \
1277 /usr/libexec \
1278 /usr/ccs/gcc \
1279 /usr/ccs/bin \
1280 /udk/usr/ccs/bin \
1281 /bsd43/usr/lib/cmplrs/cc \
1282 /usr/cross64/usr/bin \
1283 /usr/lib/cmplrs/cc \
1284 /sysv/usr/lib/cmplrs/cc \
1285 /svr4/usr/lib/cmplrs/cc \
1286 /usr/bin"
1287 fi
1289 for dir in $test_dirs; do
1290 if test -x $dir/as$host_exeext; then
1291 gcc_cv_as=$dir/as$host_exeext
1292 break;
1293 fi
1294 done
1295 fi
1296 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1297 AC_MSG_RESULT("newly built gas")
1298 else
1299 AC_MSG_RESULT($gcc_cv_as)
1300 fi
1302 # Figure out what linker we will be using.
1303 AC_MSG_CHECKING(what linker to use)
1304 gcc_cv_ld=
1305 gcc_cv_gld_major_version=
1306 gcc_cv_gld_minor_version=
1307 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1308 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1309 if test -x "$DEFAULT_LINKER"; then
1310 gcc_cv_ld="$DEFAULT_LINKER"
1311 elif test -x "$LD"; then
1312 gcc_cv_ld="$LD"
1313 elif test -x ld$host_exeext; then
1314 # Build using linker in the current directory.
1315 gcc_cv_ld=./ld$host_exeext
1316 elif test -f $gcc_cv_ld_gld_srcdir/configure.in -a -f ../ld/Makefile; then
1317 # Single tree build which includes ld.
1318 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
1319 do
1320 changequote(,)dnl
1321 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1322 changequote([,])dnl
1323 if test x$gcc_cv_gld_version != x; then
1324 break
1325 fi
1326 done
1327 changequote(,)dnl
1328 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1329 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1330 changequote([,])dnl
1331 fi
1333 if test "x$gcc_cv_ld" = x; then
1334 # Search the same directories that the installed compiler will
1335 # search. Else we may find the wrong linker and lose. If we
1336 # do not find a suitable linker binary, then try the user's
1337 # path.
1338 #
1339 # Also note we have to check MD_EXEC_PREFIX before checking the
1340 # user's path. Unfortunately, there is no good way to get at the
1341 # value of MD_EXEC_PREFIX here. So we do a brute force search
1342 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1343 # to be fixed as part of the make/configure rewrite too.
1345 if test "x$exec_prefix" = xNONE; then
1346 if test "x$prefix" = xNONE; then
1347 test_prefix=/usr/local
1348 else
1349 test_prefix=$prefix
1350 fi
1351 else
1352 test_prefix=$exec_prefix
1353 fi
1355 # If the loop below does not find an linker, then use whatever
1356 # one we can find in the users's path.
1357 # user's path.
1358 if test "x$program_prefix" != xNONE; then
1359 gcc_cv_ld=${program_prefix}ld$host_exeext
1360 else
1361 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1362 fi
1364 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1365 $test_prefix/lib/gcc-lib/$target_alias \
1366 /usr/lib/gcc/$target_alias/$gcc_version \
1367 /usr/lib/gcc/$target_alias \
1368 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1369 $test_prefix/$target_alias/bin"
1371 if test x$host = x$target; then
1372 test_dirs="$test_dirs \
1373 /usr/libexec \
1374 /usr/ccs/gcc \
1375 /usr/ccs/bin \
1376 /udk/usr/ccs/bin \
1377 /bsd43/usr/lib/cmplrs/cc \
1378 /usr/cross64/usr/bin \
1379 /usr/lib/cmplrs/cc \
1380 /sysv/usr/lib/cmplrs/cc \
1381 /svr4/usr/lib/cmplrs/cc \
1382 /usr/bin"
1383 fi
1385 for dir in $test_dirs; do
1386 if test -x $dir/ld$host_exeext; then
1387 gcc_cv_ld=$dir/ld$host_exeext
1388 break;
1389 fi
1390 done
1391 fi
1392 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1393 AC_MSG_RESULT("newly built ld")
1394 else
1395 AC_MSG_RESULT($gcc_cv_ld)
1396 fi
1398 # Figure out what nm we will be using.
1399 AC_MSG_CHECKING(what nm to use)
1400 if test -x nm$host_exeext; then
1401 gcc_cv_nm=./nm$host_exeext
1402 elif test "x$program_prefix" != xNONE; then
1403 gcc_cv_nm=${program_prefix}nm$host_exeext
1404 else
1405 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1406 fi
1407 AC_MSG_RESULT($gcc_cv_nm)
1409 # Figure out what objdump we will be using.
1410 AC_MSG_CHECKING(what objdump to use)
1411 if test -x objdump$host_exeext; then
1412 gcc_cv_objdump=./objdump$host_exeext
1413 elif test "x$program_prefix" != xNONE; then
1414 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1415 else
1416 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1417 fi
1418 AC_MSG_RESULT($gcc_cv_objdump)
1420 # Figure out what assembler alignment features are present.
1421 AC_MSG_CHECKING(assembler alignment features)
1422 gcc_cv_as_alignment_features=none
1423 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1424 # Gas version 2.6 and later support for .balign and .p2align.
1425 # bytes to skip when using .p2align.
1426 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1427 gcc_cv_as_alignment_features=".balign and .p2align"
1428 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1429 fi
1430 # Gas version 2.8 and later support specifying the maximum
1431 # bytes to skip when using .p2align.
1432 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1433 gcc_cv_as_alignment_features=".p2align including maximum skip"
1434 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1435 fi
1436 elif test x$gcc_cv_as != x; then
1437 # Check if we have .balign and .p2align
1438 echo ".balign 4" > conftest.s
1439 echo ".p2align 2" >> conftest.s
1440 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1441 gcc_cv_as_alignment_features=".balign and .p2align"
1442 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1443 fi
1444 rm -f conftest.s conftest.o
1445 # Check if specifying the maximum bytes to skip when
1446 # using .p2align is supported.
1447 echo ".p2align 4,,7" > conftest.s
1448 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1449 gcc_cv_as_alignment_features=".p2align including maximum skip"
1450 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1451 fi
1452 rm -f conftest.s conftest.o
1453 fi
1454 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1456 AC_MSG_CHECKING(assembler subsection support)
1457 gcc_cv_as_subsections=no
1458 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1459 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1460 gcc_cv_as_subsections="working .subsection -1"
1461 fi
1462 elif test x$gcc_cv_as != x; then
1463 # Check if we have .subsection
1464 echo ".subsection 1" > conftest.s
1465 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1466 gcc_cv_as_subsections=".subsection"
1467 if test x$gcc_cv_nm != x; then
1468 cat > conftest.s <<EOF
1469 conftest_label1: .word 0
1470 .subsection -1
1471 conftest_label2: .word 0
1472 .previous
1473 EOF
1474 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1475 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1476 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1477 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1478 :
1479 else
1480 gcc_cv_as_subsections="working .subsection -1"
1481 fi
1482 fi
1483 fi
1484 fi
1485 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1486 fi
1487 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1488 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1489 [Define if your assembler supports .subsection and .subsection -1 starts
1490 emitting at the beginning of your section.])
1491 fi
1492 AC_MSG_RESULT($gcc_cv_as_subsections)
1494 AC_MSG_CHECKING(assembler weak support)
1495 gcc_cv_as_weak=no
1496 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1497 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1498 gcc_cv_as_weak="yes"
1499 fi
1500 elif test x$gcc_cv_as != x; then
1501 # Check if we have .weak
1502 echo " .weak foobar" > conftest.s
1503 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1504 gcc_cv_as_weak="yes"
1505 fi
1506 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1507 fi
1508 if test x"$gcc_cv_as_weak" = xyes; then
1509 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1510 fi
1511 AC_MSG_RESULT($gcc_cv_as_weak)
1513 AC_MSG_CHECKING(assembler hidden support)
1514 gcc_cv_as_hidden=no
1515 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1516 if test "$gcc_cv_gas_major_version" -eq 2 \
1517 -a "$gcc_cv_gas_minor_version" -eq 12 \
1518 -a "$gcc_cv_gas_patch_version" -ge 1 \
1519 -o "$gcc_cv_gas_major_version" -eq 2 \
1520 -a "$gcc_cv_gas_minor_version" -gt 12 \
1521 -o "$gcc_cv_gas_major_version" -gt 2 \
1522 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1523 gcc_cv_as_hidden="yes"
1524 fi
1525 elif test x$gcc_cv_as != x; then
1526 # Check if we have .hidden
1527 echo " .hidden foobar" > conftest.s
1528 echo "foobar:" >> conftest.s
1529 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1530 gcc_cv_as_hidden="yes"
1531 fi
1532 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1534 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1535 # This is irritatingly difficult to feature test for. Look for
1536 # the date string after the version number.
1537 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1538 if echo "$ld_ver" | grep GNU > /dev/null; then
1539 changequote(,)dnl
1540 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([ ].*\|\)$,\1,p'`
1541 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1542 if test 0"$ld_date" -lt 20020404; then
1543 if test -n "$ld_date"; then
1544 # If there was date string, but was earlier than 2002-04-04, fail
1545 gcc_cv_as_hidden="no"
1546 elif test -z "$ld_vers"; then
1547 # If there was no date string nor ld version number, something is wrong
1548 gcc_cv_as_hidden="no"
1549 else
1550 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1551 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1552 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1553 test -z "$ld_vers_patch" && ld_vers_patch=0
1554 if test "$ld_vers_major" -lt 2; then
1555 gcc_cv_as_hidden="no"
1556 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1557 gcc_cv_as_hidden="no"
1558 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1559 -a "$ld_vers_patch" -eq 0; then
1560 gcc_cv_as_hidden="no"
1561 fi
1562 fi
1563 fi
1564 changequote([,])dnl
1565 fi
1566 fi
1568 if test x"$gcc_cv_as_hidden" = xyes; then
1569 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1570 [Define if your assembler supports .hidden.])
1571 fi
1572 AC_MSG_RESULT($gcc_cv_as_hidden)
1573 libgcc_visibility=$gcc_cv_as_hidden
1574 AC_SUBST(libgcc_visibility)
1576 AC_MSG_CHECKING(assembler leb128 support)
1577 gcc_cv_as_leb128=no
1578 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1579 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 11 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1580 gcc_cv_as_leb128="yes"
1581 fi
1582 elif test x$gcc_cv_as != x; then
1583 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1584 cat > conftest.s <<EOF
1585 .data
1586 .uleb128 L2 - L1
1587 L1:
1588 .uleb128 1280
1589 .sleb128 -1010
1590 L2:
1591 EOF
1592 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1593 gcc_cv_as_leb128="yes"
1595 # GAS versions before 2.11 do not support uleb128,
1596 # despite appearing to.
1597 # ??? There exists an elf-specific test that will crash
1598 # the assembler. Perhaps it's better to figure out whether
1599 # arbitrary sections are supported and try the test.
1600 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1601 if echo "$as_ver" | grep GNU > /dev/null; then
1602 changequote(,)dnl
1603 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1604 as_major=`echo $as_ver | sed 's/\..*//'`
1605 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1606 changequote([,])dnl
1607 if test $as_major -eq 2 -a $as_minor -lt 11; then
1608 gcc_cv_as_leb128="no"
1609 fi
1610 fi
1611 fi
1612 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1613 fi
1614 if test x"$gcc_cv_as_leb128" = xyes; then
1615 AC_DEFINE(HAVE_AS_LEB128, 1,
1616 [Define if your assembler supports .uleb128.])
1617 fi
1618 AC_MSG_RESULT($gcc_cv_as_leb128)
1620 AC_MSG_CHECKING(assembler eh_frame optimization)
1621 gcc_cv_as_eh_frame=no
1622 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1623 if test "$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
1624 gcc_cv_as_eh_frame="yes"
1625 fi
1626 elif test x$gcc_cv_as != x; then
1627 # Check if this is GAS.
1628 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1629 rm -f a.out 2> /dev/null
1630 if echo "$as_ver" | grep GNU > /dev/null; then
1631 # Versions up to and including 2.11.0 may mis-optimize
1632 # .eh_frame data. Try something.
1633 cat > conftest.s <<EOF
1634 .text
1635 .LFB1:
1636 .4byte 0
1637 .L1:
1638 .4byte 0
1639 .LFE1:
1640 .section .eh_frame,"aw",@progbits
1641 __FRAME_BEGIN__:
1642 .4byte .LECIE1-.LSCIE1
1643 .LSCIE1:
1644 .4byte 0x0
1645 .byte 0x1
1646 .ascii "z\0"
1647 .byte 0x1
1648 .byte 0x78
1649 .byte 0x1a
1650 .byte 0x0
1651 .byte 0x4
1652 .4byte 1
1653 .p2align 1
1654 .LECIE1:
1655 .LSFDE1:
1656 .4byte .LEFDE1-.LASFDE1
1657 .LASFDE1:
1658 .4byte .LASFDE1-__FRAME_BEGIN__
1659 .4byte .LFB1
1660 .4byte .LFE1-.LFB1
1661 .byte 0x4
1662 .4byte .LFE1-.LFB1
1663 .byte 0x4
1664 .4byte .L1-.LFB1
1665 .LEFDE1:
1666 EOF
1667 cat > conftest.lit <<EOF
1668 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1669 0010 01000000 12000000 18000000 00000000 ................
1670 0020 08000000 04080000 0044 .........D
1671 EOF
1672 cat > conftest.big <<EOF
1673 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1674 0010 00000001 00000012 00000018 00000000 ................
1675 0020 00000008 04000000 0844 .........D
1676 EOF
1677 # If the assembler didn't choke, and we can objdump,
1678 # and we got the correct data, then succeed.
1679 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1680 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1681 | tail -3 > conftest.got \
1682 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1683 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1684 then
1685 gcc_cv_as_eh_frame="yes"
1686 else
1687 gcc_cv_as_eh_frame="bad"
1688 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1689 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1690 [Define if your assembler mis-optimizes .eh_frame data.])
1691 fi
1692 fi
1693 fi
1694 rm -f conftest.*
1695 fi
1696 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1698 AC_MSG_CHECKING(assembler section merging support)
1699 gcc_cv_as_shf_merge=no
1700 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1701 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1702 gcc_cv_as_shf_merge=yes
1703 fi
1704 elif test x$gcc_cv_as != x; then
1705 # Check if we support SHF_MERGE sections
1706 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1707 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1708 gcc_cv_as_shf_merge=yes
1709 fi
1710 rm -f conftest.s conftest.o
1711 fi
1712 if test x"$gcc_cv_as_shf_merge" = xyes; then
1713 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1714 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1715 fi
1716 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1718 case "$target" in
1719 # All TARGET_ABI_OSF targets.
1720 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
1721 AC_CACHE_CHECK([assembler supports explicit relocations],
1722 gcc_cv_as_explicit_relocs, [
1723 gcc_cv_as_explicit_relocs=unknown
1724 if test x$gcc_cv_gas_major_version != x \
1725 -a x$gcc_cv_gas_minor_version != x
1726 then
1727 if test "$gcc_cv_gas_major_version" -eq 2 \
1728 -a "$gcc_cv_gas_minor_version" -ge 12 \
1729 -o "$gcc_cv_gas_major_version" -gt 2; then
1730 gcc_cv_as_explicit_relocs=yes
1731 fi
1732 elif test x$gcc_cv_as != x; then
1733 cat > conftest.s << 'EOF'
1734 .set nomacro
1735 .text
1736 extbl $3, $2, $3 !lituse_bytoff!1
1737 ldq $2, a($29) !literal!1
1738 ldq $4, b($29) !literal!2
1739 ldq_u $3, 0($2) !lituse_base!1
1740 ldq $27, f($29) !literal!5
1741 jsr $26, ($27), f !lituse_jsr!5
1742 ldah $29, 0($26) !gpdisp!3
1743 lda $0, c($29) !gprel
1744 ldah $1, d($29) !gprelhigh
1745 lda $1, d($1) !gprellow
1746 lda $29, 0($29) !gpdisp!3
1747 EOF
1748 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1749 gcc_cv_as_explicit_relocs=yes
1750 else
1751 gcc_cv_as_explicit_relocs=no
1752 fi
1753 rm -f conftest.s conftest.o
1754 fi
1755 ])
1756 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
1757 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
1758 [Define if your assembler supports explicit relocations.])
1759 fi
1760 ;;
1761 sparc*-*-*)
1762 AC_CACHE_CHECK([assembler .register pseudo-op support],
1763 gcc_cv_as_register_pseudo_op, [
1764 gcc_cv_as_register_pseudo_op=unknown
1765 if test x$gcc_cv_as != x; then
1766 # Check if we have .register
1767 echo ".register %g2, #scratch" > conftest.s
1768 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1769 gcc_cv_as_register_pseudo_op=yes
1770 else
1771 gcc_cv_as_register_pseudo_op=no
1772 fi
1773 rm -f conftest.s conftest.o
1774 fi
1775 ])
1776 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1777 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1778 [Define if your assembler supports .register.])
1779 fi
1781 AC_CACHE_CHECK([assembler supports -relax],
1782 gcc_cv_as_relax_opt, [
1783 gcc_cv_as_relax_opt=unknown
1784 if test x$gcc_cv_as != x; then
1785 # Check if gas supports -relax
1786 echo ".text" > conftest.s
1787 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1788 gcc_cv_as_relax_opt=yes
1789 else
1790 gcc_cv_as_relax_opt=no
1791 fi
1792 rm -f conftest.s conftest.o
1793 fi
1794 ])
1795 if test "x$gcc_cv_as_relax_opt" = xyes; then
1796 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1797 [Define if your assembler supports -relax option.])
1798 fi
1800 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
1801 gcc_cv_as_sparc_ua_pcrel, [
1802 gcc_cv_as_sparc_ua_pcrel=unknown
1803 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
1804 gcc_cv_as_sparc_ua_pcrel=no
1805 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
1806 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1807 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
1808 gcc_cv_as_sparc_ua_pcrel=yes
1809 fi
1810 rm -f conftest.s conftest.o conftest
1811 fi
1812 ])
1813 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1814 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
1815 [Define if your assembler and linker support unaligned PC relative relocs.])
1816 fi
1818 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
1819 gcc_cv_as_sparc_ua_pcrel_hidden, [
1820 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1821 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
1822 if test x$gcc_cv_objdump != x; then
1823 gcc_cv_as_sparc_ua_pcrel_hidden=no
1824 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
1825 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
1826 echo "foo: .skip 4" >> conftest.s
1827 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1828 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
1829 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
1830 | grep ' 31000000 07323334' > /dev/null 2>&1; then
1831 if $gcc_cv_objdump -R conftest 2> /dev/null \
1832 | grep 'DISP32' > /dev/null 2>&1; then
1833 :
1834 else
1835 gcc_cv_as_sparc_ua_pcrel_hidden=yes
1836 fi
1837 fi
1838 fi
1839 rm -f conftest.s conftest.o conftest
1840 else
1841 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
1842 fi
1843 ])
1844 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
1845 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
1846 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
1847 fi
1849 if test "x$gcc_cv_as_flags64" != xno; then
1850 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1851 gcc_cv_as_offsetable_lo10, [
1852 gcc_cv_as_offsetable_lo10=unknown
1853 if test "x$gcc_cv_as" != x; then
1854 # Check if assembler has offsetable %lo()
1855 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1856 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1857 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1858 > /dev/null 2>&1 &&
1859 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1860 > /dev/null 2>&1; then
1861 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1862 gcc_cv_as_offsetable_lo10=no
1863 else
1864 gcc_cv_as_offsetable_lo10=yes
1865 fi
1866 else
1867 gcc_cv_as_offsetable_lo10=no
1868 fi
1869 rm -f conftest.s conftest.o conftest1.s conftest1.o
1870 fi
1871 ])
1872 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1873 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1874 [Define if your assembler supports offsetable %lo().])
1875 fi
1876 fi
1878 ;;
1880 changequote(,)dnl
1881 i[34567]86-*-* | x86_64-*-*)
1882 changequote([,])dnl
1883 AC_MSG_CHECKING(assembler instructions)
1884 gcc_cv_as_instructions=
1885 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1886 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1887 gcc_cv_as_instructions="filds fists"
1888 fi
1889 elif test x$gcc_cv_as != x; then
1890 set "filds fists" "filds mem; fists mem"
1891 while test $# -gt 0
1892 do
1893 echo "$2" > conftest.s
1894 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1895 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1896 fi
1897 shift 2
1898 done
1899 rm -f conftest.s conftest.o
1900 fi
1901 if test x"$gcc_cv_as_instructions" != x; then
1902 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1903 fi
1904 AC_MSG_RESULT($gcc_cv_as_instructions)
1906 AC_MSG_CHECKING(assembler GOTOFF in data directives)
1907 gcc_cv_as_gotoff_in_data=no
1908 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1909 then
1910 if test "$gcc_cv_gas_major_version" -eq 2 \
1911 -a "$gcc_cv_gas_minor_version" -ge 11 \
1912 -o "$gcc_cv_gas_major_version" -gt 2; then
1913 gcc_cv_as_gotoff_in_data=yes
1914 fi
1915 elif test x$gcc_cv_as != x; then
1916 cat > conftest.s <<EOF
1917 .text
1918 .L0:
1919 nop
1920 .data
1921 .long .L0@GOTOFF
1922 EOF
1923 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1924 gcc_cv_as_gotoff_in_data=yes
1925 fi
1926 fi
1927 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
1928 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
1929 [Define true if the assembler supports '.long foo@GOTOFF'.])
1930 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
1931 ;;
1932 esac
1934 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1935 gcc_cv_as_dwarf2_debug_line=no
1936 # ??? Not all targets support dwarf2 debug_line, even within a version
1937 # of gas. Moreover, we need to emit a valid instruction to trigger any
1938 # info to the output file. So, as supported targets are added to gas 2.11,
1939 # add some instruction here to (also) show we expect this might work.
1940 # ??? Once 2.11 is released, probably need to add first known working
1941 # version to the per-target configury.
1942 case "$target" in
1943 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-*)
1944 insn="nop"
1945 ;;
1946 ia64*-*-*)
1947 insn="nop 0"
1948 ;;
1949 esac
1950 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1951 then
1952 if test "$gcc_cv_gas_major_version" -eq 2 \
1953 -a "$gcc_cv_gas_minor_version" -ge 11 \
1954 -o "$gcc_cv_gas_major_version" -gt 2 \
1955 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1956 && test x"$insn" != x ; then
1957 gcc_cv_as_dwarf2_debug_line="yes"
1958 fi
1959 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1960 echo ' .file 1 "conftest.s"' > conftest.s
1961 echo ' .loc 1 3 0' >> conftest.s
1962 echo " $insn" >> conftest.s
1963 # ??? This fails with non-gnu grep.
1964 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1965 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1966 # The .debug_line file table must be in the exact order that
1967 # we specified the files, since these indices are also used
1968 # by DW_AT_decl_file. Approximate this test by testing if
1969 # the assembler bitches if the same index is assigned twice.
1970 echo ' .file 1 "foo.s"' > conftest.s
1971 echo ' .file 1 "bar.s"' >> conftest.s
1972 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1973 then
1974 gcc_cv_as_dwarf2_debug_line="no"
1975 else
1976 gcc_cv_as_dwarf2_debug_line="yes"
1977 fi
1978 fi
1979 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1980 fi
1981 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1982 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1983 [Define if your assembler supports dwarf2 .file/.loc directives,
1984 and preserves file table indices exactly as given.])
1985 fi
1986 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1988 AC_MSG_CHECKING(assembler --gdwarf2 support)
1989 gcc_cv_as_gdwarf2_flag=no
1990 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1991 then
1992 if test "$gcc_cv_gas_major_version" -eq 2 \
1993 -a "$gcc_cv_gas_minor_version" -ge 11 \
1994 -o "$gcc_cv_gas_major_version" -gt 2 \
1995 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1996 && test x"$insn" != x ; then
1997 gcc_cv_as_gdwarf2_debug_flag="yes"
1998 fi
1999 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2000 echo '' > conftest.s
2001 # ??? This fails with non-gnu grep.
2002 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2003 then
2004 gcc_cv_as_gdwarf2_flag="yes"
2005 fi
2006 rm -f conftest.s conftest.o
2007 fi
2008 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2009 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2010 [Define if your assembler supports the --gdwarf2 option.])
2011 fi
2012 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2014 AC_MSG_CHECKING(assembler --gstabs support)
2015 gcc_cv_as_gstabs_flag=no
2016 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2017 then
2018 if test "$gcc_cv_gas_major_version" -eq 2 \
2019 -a "$gcc_cv_gas_minor_version" -ge 11 \
2020 -o "$gcc_cv_gas_major_version" -gt 2 \
2021 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2022 && test x"$insn" != x ; then
2023 gcc_cv_as_gstabs_debug_flag="yes"
2024 fi
2025 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2026 echo '' > conftest.s
2027 # ??? This fails with non-gnu grep.
2028 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2029 gcc_cv_as_gstabs_flag="yes"
2030 fi
2031 rm -f conftest.s conftest.o
2032 fi
2033 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2034 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2035 [Define if your assembler supports the --gstabs option.])
2036 fi
2037 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2039 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2040 gcc_cv_ld_eh_frame_hdr=no
2041 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2042 if test "$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
2043 gcc_cv_ld_eh_frame_hdr=yes
2044 fi
2045 elif test x$gcc_cv_ld != x; then
2046 # Check if linker supports --eh-frame-hdr option
2047 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2048 gcc_cv_ld_eh_frame_hdr=yes
2049 fi
2050 fi
2051 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2052 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2053 AC_MSG_CHECKING(whether linker eh_frame optimizations work properly)
2054 gcc_cv_ld_eh_frame_hdr_works=no
2055 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2056 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2057 gcc_cv_ld_eh_frame_hdr_works=yes
2058 fi
2059 elif test x$gcc_cv_ld != x; then
2060 for gcc_WS in 4 8; do
2061 cat > conftest.s <<EOF
2062 .text
2063 .LFB1: .skip 64
2064 .LFE1:
2065 .LFB2: .skip 64
2066 .LFE2:
2067 .LFB3: .skip 64
2068 .LFE3:
2069 .section .eh_frame,"aw",@progbits
2070 .Lframe1:
2071 .4byte .LECIE1-.LSCIE1
2072 .LSCIE1:
2073 .4byte 0x0
2074 .byte 0x1
2075 .ascii "zR\0"
2076 .uleb128 0x1
2077 .sleb128 -4
2078 .byte 0x8
2079 .uleb128 0x1
2080 .byte 0x50
2081 .byte 0xc
2082 .uleb128 0x4
2083 .uleb128 0x4
2084 .byte 0x88
2085 .uleb128 0x1
2086 .balign ${gcc_WS}
2087 .LECIE1:
2088 .LSFDE1:
2089 .4byte .LEFDE1-.LASFDE1
2090 .LASFDE1:
2091 .4byte .LASFDE1-.Lframe1
2092 .${gcc_WS}byte .LFB1
2093 .${gcc_WS}byte .LFE1-.LFB1
2094 .uleb128 0x0
2095 .balign ${gcc_WS}
2096 .LEFDE1:
2097 .LSFDE2:
2098 .4byte .LEFDE2-.LASFDE2
2099 .LASFDE2:
2100 .4byte .LASFDE2-.Lframe1
2101 .${gcc_WS}byte .LFB2
2102 .${gcc_WS}byte .LFE2-.LFB2
2103 .uleb128 0x0
2104 .balign ${gcc_WS}
2105 .LEFDE2:
2106 .LSFDE3:
2107 .4byte .LEFDE3-.LASFDE3
2108 .LASFDE3:
2109 .4byte .LASFDE3-.Lframe1
2110 .${gcc_WS}byte .LFB3
2111 .${gcc_WS}byte .LFE3-.LFB3
2112 .uleb128 0x0
2113 .balign ${gcc_WS}
2114 .LEFDE3:
2115 .4byte 0
2116 EOF
2117 if ($gcc_cv_as -o conftest.o conftest.s; exit $?) 1>&AC_FD_CC 2>&1; then
2118 if ($gcc_cv_ld --eh-frame-hdr -shared -o conftest.so conftest.o; exit $?) 1>&AC_FD_CC 2>&1; then
2119 changequote(,)dnl
2120 if $gcc_cv_objdump -h conftest.so 2>&AC_FD_CC \
2121 | grep 'eh_frame_hdr[ ]*0*[01][048cC][ ]' 1>&AC_FD_CC 2>&1; then
2122 gcc_cv_ld_eh_frame_hdr_works=yes; break
2123 else
2124 $gcc_cv_objdump -h conftest.so 2>/dev/null | grep eh_frame_hdr 1>&AC_FD_CC 2>&1
2125 fi
2126 changequote([,])dnl
2127 fi
2128 fi
2129 rm -f conftest.*
2130 done
2131 fi
2132 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr_works)
2133 fi
2134 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes \
2135 && test x"$gcc_cv_ld_eh_frame_hdr_works" = xyes; then
2136 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2137 [Define if your linker supports --eh-frame-hdr option.])
2138 fi
2140 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
2141 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2142 fi
2144 # Figure out what language subdirectories are present.
2145 # Look if the user specified --enable-languages="..."; if not, use
2146 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2147 # go away some day.
2148 # NB: embedded tabs in this IF block -- do not untabify
2149 if test x"${enable_languages+set}" != xset; then
2150 if test x"${LANGUAGES+set}" = xset; then
2151 enable_languages="${LANGUAGES}"
2152 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2154 else
2155 enable_languages=all
2156 fi
2157 else
2158 if test x"${enable_languages}" = x ||
2159 test x"${enable_languages}" = xyes;
2160 then
2161 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2162 fi
2163 fi
2164 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2166 # First scan to see if an enabled language requires some other language.
2167 # We assume that a given config-lang.in will list all the language
2168 # front ends it requires, even if some are required indirectly.
2169 for lang in ${srcdir}/*/config-lang.in ..
2170 do
2171 case $lang in
2172 ..)
2173 ;;
2174 # The odd quoting in the next line works around
2175 # an apparent bug in bash 1.12 on linux.
2176 changequote(,)dnl
2177 ${srcdir}/[*]/config-lang.in)
2178 ;;
2179 *)
2180 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2181 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2182 for other in $this_lang_requires
2183 do
2184 case ,${enable_languages}, in
2185 *,$other,*)
2186 ;;
2187 *,all,*)
2188 ;;
2189 *,$lang_alias,*)
2190 enable_languages="$enable_languages,$other"
2191 ;;
2192 esac
2193 done
2194 ;;
2195 changequote([,])dnl
2196 esac
2197 done
2199 subdirs=
2200 for lang in ${srcdir}/*/config-lang.in ..
2201 do
2202 case $lang in
2203 ..) ;;
2204 # The odd quoting in the next line works around
2205 # an apparent bug in bash 1.12 on linux.
2206 changequote(,)dnl
2207 ${srcdir}/[*]/config-lang.in) ;;
2208 *)
2209 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2210 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2211 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2212 if test "x$lang_alias" = x
2213 then
2214 echo "$lang doesn't set \$language." 1>&2
2215 exit 1
2216 fi
2217 case ${build_by_default},${enable_languages}, in
2218 *,$lang_alias,*) add_this_lang=yes ;;
2219 no,*) add_this_lang=no ;;
2220 *,all,*) add_this_lang=yes ;;
2221 *) add_this_lang=no ;;
2222 esac
2223 if test x"${add_this_lang}" = xyes; then
2224 case $lang in
2225 ${srcdir}/ada/config-lang.in)
2226 if test x$have_gnat = xyes ; then
2227 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2228 fi
2229 ;;
2230 *)
2231 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2232 ;;
2233 esac
2234 fi
2235 ;;
2236 changequote([,])dnl
2237 esac
2238 done
2240 # Make gthr-default.h if we have a thread file.
2241 gthread_flags=
2242 if test $thread_file != single; then
2243 rm -f gthr-default.h
2244 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2245 gthread_flags=-DHAVE_GTHR_DEFAULT
2246 fi
2247 AC_SUBST(gthread_flags)
2249 # Find out what GC implementation we want, or may, use.
2250 AC_ARG_WITH(gc,
2251 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2252 with the compiler],
2253 [case "$withval" in
2254 simple | page)
2255 GGC=ggc-$withval
2256 ;;
2257 *)
2258 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2259 ;;
2260 esac],
2261 [GGC=ggc-page])
2262 AC_SUBST(GGC)
2263 echo "Using $GGC for garbage collection."
2265 # Use the system's zlib library.
2266 zlibdir=-L../zlib
2267 zlibinc="-I\$(srcdir)/../zlib"
2268 AC_ARG_WITH(system-zlib,
2269 [ --with-system-zlib use installed libz],
2270 zlibdir=
2271 zlibinc=
2272 )
2273 AC_SUBST(zlibdir)
2274 AC_SUBST(zlibinc)
2276 dnl Very limited version of automake's enable-maintainer-mode
2278 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2279 dnl maintainer-mode is disabled by default
2280 AC_ARG_ENABLE(maintainer-mode,
2281 [ --enable-maintainer-mode
2282 enable make rules and dependencies not useful
2283 (and sometimes confusing) to the casual installer],
2284 maintainer_mode=$enableval,
2285 maintainer_mode=no)
2287 AC_MSG_RESULT($maintainer_mode)
2289 if test "$maintainer_mode" = "yes"; then
2290 MAINT=''
2291 else
2292 MAINT='#'
2293 fi
2294 AC_SUBST(MAINT)dnl
2296 # With Setjmp/Longjmp based exception handling.
2297 AC_ARG_ENABLE(sjlj-exceptions,
2298 [ --enable-sjlj-exceptions
2299 arrange to use setjmp/longjmp exception handling],
2300 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
2301 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
2302 [Define 0/1 to force the choice for exception handling model.])])
2304 # Make empty files to contain the specs and options for each language.
2305 # Then add #include lines to for a compiler that has specs and/or options.
2307 lang_specs_files=
2308 lang_options_files=
2309 lang_tree_files=
2310 for subdir in . $subdirs
2311 do
2312 if test -f $srcdir/$subdir/lang-specs.h; then
2313 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2314 fi
2315 if test -f $srcdir/$subdir/lang-options.h; then
2316 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2317 fi
2318 if test -f $srcdir/$subdir/$subdir-tree.def; then
2319 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2320 fi
2321 done
2323 # These (without "all_") are set in each config-lang.in.
2324 # `language' must be a single word so is spelled singularly.
2325 all_languages=
2326 all_boot_languages=
2327 all_compilers=
2328 all_stagestuff=
2329 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc'
2330 # List of language makefile fragments.
2331 all_lang_makefiles=
2333 # Add the language fragments.
2334 # Languages are added via two mechanisms. Some information must be
2335 # recorded in makefile variables, these are defined in config-lang.in.
2336 # We accumulate them and plug them into the main Makefile.
2337 # The other mechanism is a set of hooks for each of the main targets
2338 # like `clean', `install', etc.
2340 language_fragments="Make-lang"
2341 language_hooks="Make-hooks"
2343 for s in .. $subdirs
2344 do
2345 if test $s != ".."
2346 then
2347 language=
2348 boot_language=
2349 compilers=
2350 stagestuff=
2351 outputs=
2352 . ${srcdir}/$s/config-lang.in
2353 if test "x$language" = x
2354 then
2355 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2356 exit 1
2357 fi
2358 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2359 if test -f ${srcdir}/$s/Makefile.in
2360 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2361 fi
2362 all_languages="$all_languages $language"
2363 if test "x$boot_language" = xyes
2364 then
2365 all_boot_languages="$all_boot_languages $language"
2366 fi
2367 all_compilers="$all_compilers $compilers"
2368 all_stagestuff="$all_stagestuff $stagestuff"
2369 all_outputs="$all_outputs $outputs"
2370 fi
2371 done
2373 check_languages=
2374 for language in .. $all_languages
2375 do
2376 if test $language != ".."
2377 then
2378 check_languages="$check_languages check-$language"
2379 fi
2380 done
2382 # Since we can't use `::' targets, we link each language in
2383 # with a set of hooks, reached indirectly via lang.${target}.
2385 rm -f Make-hooks
2386 touch Make-hooks
2387 target_list="all.build all.cross start.encap rest.encap \
2388 info dvi generated-manpages \
2389 install-normal install-common install-info install-man \
2390 uninstall \
2391 mostlyclean clean distclean extraclean maintainer-clean \
2392 stage1 stage2 stage3 stage4"
2393 for t in $target_list
2394 do
2395 x=
2396 for lang in .. $all_languages
2397 do
2398 if test $lang != ".."; then
2399 x="$x $lang.$t"
2400 fi
2401 done
2402 echo "lang.$t: $x" >> Make-hooks
2403 done
2405 # Create .gdbinit.
2407 echo "dir ." > .gdbinit
2408 echo "dir ${srcdir}" >> .gdbinit
2409 if test x$gdb_needs_out_file_path = xyes
2410 then
2411 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2412 fi
2413 if test "x$subdirs" != x; then
2414 for s in $subdirs
2415 do
2416 echo "dir ${srcdir}/$s" >> .gdbinit
2417 done
2418 fi
2419 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2421 # Define variables host_canonical and build_canonical
2422 # because some Cygnus local changes in the Makefile depend on them.
2423 build_canonical=${build}
2424 host_canonical=${host}
2425 target_subdir=
2426 if test "${host}" != "${target}" ; then
2427 target_subdir=${target_alias}/
2428 fi
2429 AC_SUBST(build_canonical)
2430 AC_SUBST(host_canonical)
2431 AC_SUBST(target_subdir)
2433 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2434 # absolute path for gcc_tooldir based on inserting the number of up-directory
2435 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2436 # $(libsubdir)/@(unlibsubdir) based path.
2437 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2438 # make and thus we'd get different behavior depending on where we built the
2439 # sources.
2440 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2441 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2442 else
2443 changequote(<<, >>)dnl
2444 # An explanation of the sed strings:
2445 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2446 # -e 's|/$||' match a trailing forward slash and eliminates it
2447 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2448 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2449 #
2450 # (*) Note this pattern overwrites the first character of the string
2451 # with a forward slash if one is not already present. This is not a
2452 # problem because the exact names of the sub-directories concerned is
2453 # unimportant, just the number of them matters.
2454 #
2455 # The practical upshot of these patterns is like this:
2456 #
2457 # prefix exec_prefix result
2458 # ------ ----------- ------
2459 # /foo /foo/bar ../
2460 # /foo/ /foo/bar ../
2461 # /foo /foo/bar/ ../
2462 # /foo/ /foo/bar/ ../
2463 # /foo /foo/bar/ugg ../../
2464 #
2465 dollar='$$'
2466 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2467 changequote([, ])dnl
2468 fi
2469 AC_SUBST(gcc_tooldir)
2470 AC_SUBST(dollar)
2472 # Find a directory in which to install a shared libgcc.
2474 AC_ARG_ENABLE(version-specific-runtime-libs,
2475 [ --enable-version-specific-runtime-libs
2476 specify that runtime libraries should be
2477 installed in a compiler-specific directory])
2479 AC_ARG_WITH(slibdir,
2480 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2481 slibdir="$with_slibdir",
2482 if test "${enable_version_specific_runtime_libs+set}" = set; then
2483 slibdir='$(libsubdir)'
2484 elif test "$host" != "$target"; then
2485 slibdir='$(build_tooldir)/lib'
2486 else
2487 slibdir='$(libdir)'
2488 fi)
2489 AC_SUBST(slibdir)
2491 # Nothing to do for FLOAT_H, float_format already handled.
2492 objdir=`pwd`
2493 AC_SUBST(objdir)
2495 # Process the language and host/target makefile fragments.
2496 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2498 # Substitute configuration variables
2499 AC_SUBST(subdirs)
2500 AC_SUBST(all_boot_languages)
2501 AC_SUBST(all_compilers)
2502 AC_SUBST(all_lang_makefiles)
2503 AC_SUBST(all_languages)
2504 AC_SUBST(all_stagestuff)
2505 AC_SUBST(build_exeext)
2506 AC_SUBST(build_install_headers_dir)
2507 AC_SUBST(build_xm_file_list)
2508 AC_SUBST(build_xm_file)
2509 AC_SUBST(build_xm_defines)
2510 AC_SUBST(check_languages)
2511 AC_SUBST(cc_set_by_configure)
2512 AC_SUBST(quoted_cc_set_by_configure)
2513 AC_SUBST(cpp_install_dir)
2514 AC_SUBST(dep_host_xmake_file)
2515 AC_SUBST(dep_tmake_file)
2516 AC_SUBST(extra_headers_list)
2517 AC_SUBST(extra_objs)
2518 AC_SUBST(extra_parts)
2519 AC_SUBST(extra_passes)
2520 AC_SUBST(extra_programs)
2521 AC_SUBST(float_h_file)
2522 AC_SUBST(gcc_config_arguments)
2523 AC_SUBST(gcc_gxx_include_dir)
2524 AC_SUBST(libstdcxx_incdir)
2525 AC_SUBST(gcc_version)
2526 AC_SUBST(gcc_version_full)
2527 AC_SUBST(gcc_version_trigger)
2528 AC_SUBST(host_exeext)
2529 AC_SUBST(host_extra_gcc_objs)
2530 AC_SUBST(host_xm_file_list)
2531 AC_SUBST(host_xm_file)
2532 AC_SUBST(host_xm_defines)
2533 AC_SUBST(install)
2534 AC_SUBST(lang_options_files)
2535 AC_SUBST(lang_specs_files)
2536 AC_SUBST(lang_tree_files)
2537 AC_SUBST(local_prefix)
2538 AC_SUBST(md_file)
2539 AC_SUBST(objc_boehm_gc)
2540 AC_SUBST(out_file)
2541 AC_SUBST(out_object_file)
2542 AC_SUBST(stage_prefix_set_by_configure)
2543 AC_SUBST(quoted_stage_prefix_set_by_configure)
2544 AC_SUBST(symbolic_link)
2545 AC_SUBST(thread_file)
2546 AC_SUBST(tm_file_list)
2547 AC_SUBST(tm_file)
2548 AC_SUBST(tm_p_file_list)
2549 AC_SUBST(tm_p_file)
2550 AC_SUBST(xm_file)
2551 AC_SUBST(xm_defines)
2552 AC_SUBST(target_alias)
2553 AC_SUBST(c_target_objs)
2554 AC_SUBST(cxx_target_objs)
2555 AC_SUBST(target_cpu_default)
2557 AC_SUBST_FILE(target_overrides)
2558 AC_SUBST_FILE(host_overrides)
2559 AC_SUBST_FILE(language_fragments)
2560 AC_SUBST_FILE(language_hooks)
2562 # Echo that links are built
2563 if test x$host = x$target
2564 then
2565 str1="native "
2566 else
2567 str1="cross-"
2568 str2=" from $host"
2569 fi
2571 if test x$host != x$build
2572 then
2573 str3=" on a $build system"
2574 fi
2576 if test "x$str2" != x || test "x$str3" != x
2577 then
2578 str4=
2579 fi
2581 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2583 if test "x$str2" != x || test "x$str3" != x
2584 then
2585 echo " ${str2}${str3}." 1>&2
2586 fi
2588 # Truncate the target if necessary
2589 if test x$host_truncate_target != x; then
2590 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2591 fi
2593 # Configure the subdirectories
2594 # AC_CONFIG_SUBDIRS($subdirs)
2596 # Create the Makefile
2597 # and configure language subdirectories
2598 AC_OUTPUT($all_outputs,
2599 [
2600 case x$CONFIG_HEADERS in
2601 xauto-host.h:config.in)
2602 echo > cstamp-h ;;
2603 esac
2604 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2605 # bootstrapping and the installation procedure can still use
2606 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2607 # FLAGS_TO_PASS has been modified to solve the problem there.
2608 # This is virtually a duplicate of what happens in configure.lang; we do
2609 # an extra check to make sure this only happens if ln -s can be used.
2610 if test "$symbolic_link" = "ln -s"; then
2611 for d in .. ${subdirs} fixinc ; do
2612 if test $d != ..; then
2613 STARTDIR=`pwd`
2614 cd $d
2615 for t in stage1 stage2 stage3 stage4 include
2616 do
2617 rm -f $t
2618 $symbolic_link ../$t $t 2>/dev/null
2619 done
2620 cd $STARTDIR
2621 fi
2622 done
2623 else true ; fi
2624 # Avoid having to add intl to our include paths.
2625 if test -f intl/libintl.h; then
2626 echo creating libintl.h
2627 echo '#include "intl/libintl.h"' >libintl.h
2628 fi
2629 ],
2630 [subdirs='$subdirs'
2631 symbolic_link='$symbolic_link'
2632 ])