| blob | 8f747d62c7278729a96c86a4ed6423a2e2fd44a1 |
1 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
2 # 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
3 # Free Software Foundation, Inc.
4 #
5 # This file is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program; see the file COPYING3. If not see
17 # <http://www.gnu.org/licenses/>.
19 ##############################################################################
20 ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
22 m4_include(config/acx.m4)
23 m4_include(config/override.m4)
24 m4_include(config/proginstall.m4)
25 m4_include(config/elf.m4)
26 m4_include([libtool.m4])
27 m4_include([ltoptions.m4])
28 m4_include([ltsugar.m4])
29 m4_include([ltversion.m4])
30 m4_include([lt~obsolete.m4])
31 m4_include([config/isl.m4])
32 m4_include([config/cloog.m4])
34 AC_INIT(move-if-change)
35 AC_PREREQ(2.64)
36 AC_DISABLE_OPTION_CHECKING
38 progname=$0
39 # if PWD already has a value, it is probably wrong.
40 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
42 # Export original configure arguments for use by sub-configures.
43 # Quote arguments with shell meta charatcers.
44 TOPLEVEL_CONFIGURE_ARGUMENTS=
45 set -- "$progname" "$@"
46 for ac_arg
47 do
48 case "$ac_arg" in
49 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
50 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
51 # if the argument is of the form -foo=baz, quote the baz part only
52 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
53 *) ;;
54 esac
55 # Add the quoted argument to the list.
56 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
57 done
58 if test "$silent" = yes; then
59 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
60 fi
61 # Remove the initial space we just introduced and, as these will be
62 # expanded by make, quote '$'.
63 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
64 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
66 # Find the build, host, and target systems.
67 ACX_NONCANONICAL_BUILD
68 ACX_NONCANONICAL_HOST
69 ACX_NONCANONICAL_TARGET
71 dnl Autoconf 2.5x and later will set a default program prefix if
72 dnl --target was used, even if it was the same as --host. Disable
73 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
74 dnl to take effect.
75 test "$host_noncanonical" = "$target_noncanonical" &&
76 test "$program_prefix$program_suffix$program_transform_name" = \
77 NONENONEs,x,x, &&
78 program_transform_name=s,y,y,
80 AC_CANONICAL_SYSTEM
81 AC_ARG_PROGRAM
83 m4_pattern_allow([^AS_FOR_TARGET$])dnl
84 m4_pattern_allow([^AS_FOR_BUILD$])dnl
86 # Get 'install' or 'install-sh' and its variants.
87 AC_PROG_INSTALL
88 ACX_PROG_LN
89 AC_PROG_LN_S
90 AC_PROG_SED
91 AC_PROG_AWK
93 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
95 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
96 # a relative path.
97 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
98 INSTALL="${srcpwd}/install-sh -c"
99 fi
101 # Set srcdir to "." if that's what it is.
102 # This is important for multilib support.
103 pwd=`${PWDCMD-pwd}`
104 if test "${pwd}" = "${srcpwd}" ; then
105 srcdir=.
106 fi
108 topsrcdir=$srcpwd
110 extra_host_args=
112 ### To add a new directory to the tree, first choose whether it is a target
113 ### or a host dependent tool. Then put it into the appropriate list
114 ### (library or tools, host or target), doing a dependency sort.
116 # Subdirs will be configured in the order listed in build_configdirs,
117 # configdirs, or target_configdirs; see the serialization section below.
119 # Dependency sorting is only needed when *configuration* must be done in
120 # a particular order. In all cases a dependency should be specified in
121 # the Makefile, whether or not it's implicitly specified here.
123 # Double entries in build_configdirs, configdirs, or target_configdirs may
124 # cause circular dependencies and break everything horribly.
126 # these library is used by various programs built for the build
127 # environment
128 #
129 build_libs="build-libiberty"
131 # these tools are built for the build environment
132 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
134 # these libraries are used by various programs built for the host environment
135 #f
136 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl cloog libelf libiconv"
138 # these tools are built for the host environment
139 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
140 # know that we are building the simulator.
141 # binutils, gas and ld appear in that order because it makes sense to run
142 # "make check" in that particular order.
143 # If --enable-gold is used, "gold" may replace "ld".
144 host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools"
146 # libgcj represents the runtime libraries only used by gcj.
147 libgcj="target-libffi \
148 target-zlib \
149 target-libjava"
151 # these libraries are built for the target environment, and are built after
152 # the host libraries and the host tools (which may be a cross compiler)
153 # Note that libiberty is not a target library.
154 target_libraries="target-libgcc \
155 target-libbacktrace \
156 target-libgloss \
157 target-newlib \
158 target-libgomp \
159 target-libcilkrts \
160 target-libatomic \
161 target-libitm \
162 target-libstdc++-v3 \
163 target-libsanitizer \
164 target-libvtv \
165 target-libssp \
166 target-libquadmath \
167 target-libgfortran \
168 target-boehm-gc \
169 ${libgcj} \
170 target-libobjc \
171 target-libada \
172 target-libgo"
174 # these tools are built using the target libraries, and are intended to
175 # run only in the target environment
176 #
177 # note: any program that *uses* libraries that are in the "target_libraries"
178 # list belongs in this list.
179 #
180 target_tools="target-rda"
182 ################################################################################
184 ## All tools belong in one of the four categories, and are assigned above
185 ## We assign ${configdirs} this way to remove all embedded newlines. This
186 ## is important because configure will choke if they ever get through.
187 ## ${configdirs} is directories we build using the host tools.
188 ## ${target_configdirs} is directories we build using the target tools.
189 configdirs=`echo ${host_libs} ${host_tools}`
190 target_configdirs=`echo ${target_libraries} ${target_tools}`
191 build_configdirs=`echo ${build_libs} ${build_tools}`
193 m4_divert_text([PARSE_ARGS],
194 [case $srcdir in
195 *" "*)
196 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
197 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
198 m4_popdef([AS_MESSAGE_LOG_FD])dnl
199 ;;
200 esac
201 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
202 ])
204 ################################################################################
206 srcname="gnu development package"
208 # This gets set non-empty for some net releases of packages.
209 appdirs=""
211 # Define is_cross_compiler to save on calls to 'test'.
212 is_cross_compiler=
213 if test x"${host}" = x"${target}" ; then
214 is_cross_compiler=no
215 else
216 is_cross_compiler=yes
217 fi
219 # Find the build and target subdir names.
220 GCC_TOPLEV_SUBDIRS
221 # Be sure to cover against remnants of an in-tree build.
222 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
223 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
224 Use a pristine source tree when building in a separate tree])
225 fi
227 # Skipdirs are removed silently.
228 skipdirs=
229 # Noconfigdirs are removed loudly.
230 noconfigdirs=""
232 use_gnu_ld=
233 # Make sure we don't let GNU ld be added if we didn't want it.
234 if test x$with_gnu_ld = xno ; then
235 use_gnu_ld=no
236 noconfigdirs="$noconfigdirs ld gold"
237 fi
239 use_gnu_as=
240 # Make sure we don't let GNU as be added if we didn't want it.
241 if test x$with_gnu_as = xno ; then
242 use_gnu_as=no
243 noconfigdirs="$noconfigdirs gas"
244 fi
246 use_included_zlib=
247 # Make sure we don't let ZLIB be added if we didn't want it.
248 if test x$with_system_zlib = xyes ; then
249 use_included_zlib=no
250 noconfigdirs="$noconfigdirs zlib"
251 fi
253 # some tools are so dependent upon X11 that if we're not building with X,
254 # it's not even worth trying to configure, much less build, that tool.
256 case ${with_x} in
257 yes | "") ;; # the default value for this tree is that X11 is available
258 no)
259 skipdirs="${skipdirs} tk itcl libgui"
260 # We won't be able to build gdbtk without X.
261 enable_gdbtk=no
262 ;;
263 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
264 esac
266 # Some are only suitable for cross toolchains.
267 # Remove these if host=target.
268 cross_only="target-libgloss target-newlib target-opcodes"
270 case $is_cross_compiler in
271 no) skipdirs="${skipdirs} ${cross_only}" ;;
272 esac
274 # If both --with-headers and --with-libs are specified, default to
275 # --without-newlib.
276 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
277 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
278 if test x"${with_newlib}" = x ; then
279 with_newlib=no
280 fi
281 fi
283 # Recognize --with-newlib/--without-newlib.
284 case ${with_newlib} in
285 no) skipdirs="${skipdirs} target-newlib" ;;
286 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
287 esac
289 # Handle --enable-gold, --enable-ld.
290 # --disable-gold [--enable-ld]
291 # Build only ld. Default option.
292 # --enable-gold [--enable-ld]
293 # Build both gold and ld. Install gold as "ld.gold", install ld
294 # as "ld.bfd" and "ld".
295 # --enable-gold=default [--enable-ld]
296 # Build both gold and ld. Install gold as "ld.gold" and "ld",
297 # install ld as "ld.bfd".
298 # --enable-gold[=default] --disable-ld
299 # Build only gold, which is then installed as both "ld.gold" and "ld".
300 # --enable-gold --enable-ld=default
301 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
302 # and ld.bfd).
303 # In other words, ld is default
304 # --enable-gold=default --enable-ld=default
305 # Error.
307 default_ld=
308 AC_ARG_ENABLE(gold,
309 [AS_HELP_STRING([[--enable-gold[=ARG]]],
310 [build gold @<:@ARG={default,yes,no}@:>@])],
311 ENABLE_GOLD=$enableval,
312 ENABLE_GOLD=no)
313 case "${ENABLE_GOLD}" in
314 yes|default)
315 # Check for ELF target.
316 is_elf=no
317 case "${target}" in
318 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
319 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
320 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
321 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
322 case "${target}" in
323 *-*-linux*aout* | *-*-linux*oldld*)
324 ;;
325 *)
326 is_elf=yes
327 ;;
328 esac
329 esac
331 if test "$is_elf" = "yes"; then
332 # Check for target supported by gold.
333 case "${target}" in
334 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* | tilegx*-*-*)
335 configdirs="$configdirs gold"
336 if test x${ENABLE_GOLD} = xdefault; then
337 default_ld=gold
338 fi
339 ENABLE_GOLD=yes
340 ;;
341 esac
342 fi
343 ;;
344 no)
345 ;;
346 *)
347 AC_MSG_ERROR([invalid --enable-gold argument])
348 ;;
349 esac
351 AC_ARG_ENABLE(ld,
352 [AS_HELP_STRING([[--enable-ld[=ARG]]],
353 [build ld @<:@ARG={default,yes,no}@:>@])],
354 ENABLE_LD=$enableval,
355 ENABLE_LD=yes)
357 case "${ENABLE_LD}" in
358 default)
359 if test x${default_ld} != x; then
360 AC_MSG_ERROR([either gold or ld can be the default ld])
361 fi
362 ;;
363 yes)
364 ;;
365 no)
366 if test x${ENABLE_GOLD} != xyes; then
367 AC_MSG_WARN([neither ld nor gold are enabled])
368 fi
369 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
370 ;;
371 *)
372 AC_MSG_ERROR([invalid --enable-ld argument])
373 ;;
374 esac
376 # Configure extra directories which are host specific
378 case "${host}" in
379 *-cygwin*)
380 configdirs="$configdirs libtermcap" ;;
381 esac
383 # A target can indicate whether a language isn't supported for some reason.
384 # Only spaces may be used in this macro; not newlines or tabs.
385 unsupported_languages=
387 # Remove more programs from consideration, based on the host or
388 # target this usually means that a port of the program doesn't
389 # exist yet.
391 case "${host}" in
392 i[[3456789]]86-*-msdosdjgpp*)
393 noconfigdirs="$noconfigdirs tcl tk itcl"
394 ;;
395 esac
398 AC_ARG_ENABLE(libquadmath,
399 AS_HELP_STRING([--disable-libquadmath],
400 [do not build libquadmath directory]),
401 ENABLE_LIBQUADMATH=$enableval,
402 ENABLE_LIBQUADMATH=yes)
403 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
404 noconfigdirs="$noconfigdirs target-libquadmath"
405 fi
408 AC_ARG_ENABLE(libquadmath-support,
409 AS_HELP_STRING([--disable-libquadmath-support],
410 [disable libquadmath support for Fortran]),
411 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
412 ENABLE_LIBQUADMATH_SUPPORT=yes)
413 enable_libquadmath_support=
414 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
415 enable_libquadmath_support=no
416 fi
419 AC_ARG_ENABLE(libada,
420 [AS_HELP_STRING([--enable-libada], [build libada directory])],
421 ENABLE_LIBADA=$enableval,
422 ENABLE_LIBADA=yes)
423 if test "${ENABLE_LIBADA}" != "yes" ; then
424 noconfigdirs="$noconfigdirs gnattools"
425 fi
427 AC_ARG_ENABLE(libssp,
428 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
429 ENABLE_LIBSSP=$enableval,
430 ENABLE_LIBSSP=yes)
432 AC_ARG_ENABLE(libstdcxx,
433 AS_HELP_STRING([--disable-libstdcxx],
434 [do not build libstdc++-v3 directory]),
435 ENABLE_LIBSTDCXX=$enableval,
436 ENABLE_LIBSTDCXX=default)
437 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
438 noconfigdirs="$noconfigdirs target-libstdc++-v3"
439 fi]
441 # Save it here so that, even in case of --enable-libgcj, if the Java
442 # front-end isn't enabled, we still get libgcj disabled.
443 libgcj_saved=$libgcj
444 case $enable_libgcj in
445 yes)
446 # If we reset it here, it won't get added to noconfigdirs in the
447 # target-specific build rules, so it will be forcibly enabled
448 # (unless the Java language itself isn't enabled).
449 libgcj=
450 ;;
451 no)
452 # Make sure we get it printed in the list of not supported target libs.
453 # Don't disable libffi, though, other languages use it.
454 noconfigdirs="$noconfigdirs `echo ${libgcj} | sed -e 's/target-libffi//'`"
455 # Clear libgcj_saved so that even if java is enabled libffi won't be
456 # built.
457 libgcj_saved=
458 ;;
459 esac
461 AC_ARG_ENABLE(static-libjava,
462 [AS_HELP_STRING([[--enable-static-libjava[=ARG]]],
463 [build static libjava @<:@default=no@:>@])],
464 ENABLE_STATIC_LIBJAVA=$enableval,
465 ENABLE_STATIC_LIBJAVA=no)
466 enable_static_libjava=
467 if test "${ENABLE_STATIC_LIBJAVA}" = "yes" ; then
468 enable_static_libjava=yes
469 fi
471 if test x$enable_static_libjava != xyes ; then
472 EXTRA_CONFIGARGS_LIBJAVA=--disable-static
473 fi
474 AC_SUBST(EXTRA_CONFIGARGS_LIBJAVA)
476 # Disable libgomp on non POSIX hosted systems.
477 if test x$enable_libgomp = x ; then
478 # Enable libgomp by default on hosted POSIX systems.
479 case "${target}" in
480 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
481 ;;
482 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
483 ;;
484 *-*-solaris2* | *-*-hpux11*)
485 ;;
486 *-*-darwin* | *-*-aix*)
487 ;;
488 *)
489 noconfigdirs="$noconfigdirs target-libgomp"
490 ;;
491 esac
492 fi
494 # Disable libatomic on unsupported systems.
495 if test -d ${srcdir}/libatomic; then
496 if test x$enable_libatomic = x; then
497 AC_MSG_CHECKING([for libatomic support])
498 if (srcdir=${srcdir}/libatomic; \
499 . ${srcdir}/configure.tgt; \
500 test -n "$UNSUPPORTED")
501 then
502 AC_MSG_RESULT([no])
503 noconfigdirs="$noconfigdirs target-libatomic"
504 else
505 AC_MSG_RESULT([yes])
506 fi
507 fi
508 fi
510 # Disable libcilkrts on unsupported systems.
511 if test -d ${srcdir}/libcilkrts; then
512 if test x$enable_libcilkrts = x; then
513 AC_MSG_CHECKING([for libcilkrts support])
514 if (srcdir=${srcdir}/libcilkrts; \
515 . ${srcdir}/configure.tgt; \
516 test -n "$UNSUPPORTED")
517 then
518 AC_MSG_RESULT([no])
519 noconfigdirs="$noconfigdirs target-libcilkrts"
520 else
521 AC_MSG_RESULT([yes])
522 fi
523 fi
524 fi
526 # Disable libitm on unsupported systems.
527 if test -d ${srcdir}/libitm; then
528 if test x$enable_libitm = x; then
529 AC_MSG_CHECKING([for libitm support])
530 if (srcdir=${srcdir}/libitm; \
531 . ${srcdir}/configure.tgt; \
532 test -n "$UNSUPPORTED")
533 then
534 AC_MSG_RESULT([no])
535 noconfigdirs="$noconfigdirs target-libitm"
536 else
537 AC_MSG_RESULT([yes])
538 fi
539 fi
540 fi
542 # Disable libsanitizer on unsupported systems.
543 if test -d ${srcdir}/libsanitizer; then
544 if test x$enable_libsanitizer = x; then
545 AC_MSG_CHECKING([for libsanitizer support])
546 if (srcdir=${srcdir}/libsanitizer; \
547 . ${srcdir}/configure.tgt; \
548 test -n "$UNSUPPORTED")
549 then
550 AC_MSG_RESULT([no])
551 noconfigdirs="$noconfigdirs target-libsanitizer"
552 else
553 AC_MSG_RESULT([yes])
554 fi
555 fi
556 fi
558 # Disable libvtv on unsupported systems.
559 if test -d ${srcdir}/libvtv; then
560 if test x$enable_libvtv = x; then
561 AC_MSG_CHECKING([for libvtv support])
562 if (srcdir=${srcdir}/libvtv; \
563 . ${srcdir}/configure.tgt; \
564 test "$VTV_SUPPORTED" != "yes")
565 then
566 AC_MSG_RESULT([no])
567 noconfigdirs="$noconfigdirs target-libvtv"
568 else
569 AC_MSG_RESULT([yes])
570 fi
571 fi
572 fi
574 # Disable libquadmath for some systems.
575 case "${target}" in
576 avr-*-*)
577 noconfigdirs="$noconfigdirs target-libquadmath"
578 ;;
579 # libquadmath is unused on AIX and libquadmath build process use of
580 # LD_LIBRARY_PATH can break AIX bootstrap.
581 powerpc-*-aix* | rs6000-*-aix*)
582 noconfigdirs="$noconfigdirs target-libquadmath"
583 ;;
584 esac
586 # Disable libssp for some systems.
587 case "${target}" in
588 avr-*-*)
589 # No hosted I/O support.
590 noconfigdirs="$noconfigdirs target-libssp"
591 ;;
592 powerpc-*-aix* | rs6000-*-aix*)
593 noconfigdirs="$noconfigdirs target-libssp"
594 ;;
595 rl78-*-*)
596 # libssp uses a misaligned load to trigger a fault, but the RL78
597 # doesn't fault for those - instead, it gives a build-time error
598 # for explicit misaligned loads.
599 noconfigdirs="$noconfigdirs target-libssp"
600 ;;
601 esac
603 # Disable libstdc++-v3 for some systems.
604 # Allow user to override this if they pass --enable-libstdc++-v3
605 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
606 case "${target}" in
607 *-*-vxworks*)
608 # VxWorks uses the Dinkumware C++ library.
609 noconfigdirs="$noconfigdirs target-libstdc++-v3"
610 ;;
611 arm*-wince-pe*)
612 # the C++ libraries don't build on top of CE's C libraries
613 noconfigdirs="$noconfigdirs target-libstdc++-v3"
614 ;;
615 avr-*-*)
616 noconfigdirs="$noconfigdirs target-libstdc++-v3"
617 ;;
618 esac
619 fi
621 # Disable Fortran for some systems.
622 case "${target}" in
623 mmix-*-*)
624 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
625 unsupported_languages="$unsupported_languages fortran"
626 ;;
627 esac
629 # Disable Java if libffi is not supported.
630 case "${target}" in
631 aarch64-*-*)
632 ;;
633 alpha*-*-*)
634 ;;
635 arm*-*-*)
636 ;;
637 cris-*-*)
638 ;;
639 frv-*-*)
640 ;;
641 hppa*-*-linux*)
642 ;;
643 hppa*-*-hpux*)
644 ;;
645 i?86-*-*)
646 ;;
647 ia64*-*-*)
648 ;;
649 m32r*-*-*)
650 ;;
651 m68k-*-*)
652 ;;
653 mips*-*-rtems*)
654 ;;
655 mips*-*-linux*)
656 ;;
657 powerpc*-*-linux*)
658 ;;
659 powerpc-*-darwin*)
660 ;;
661 powerpc-*-aix* | rs6000-*-aix*)
662 ;;
663 powerpc-*-freebsd*)
664 ;;
665 powerpc64-*-freebsd*)
666 ;;
667 powerpc*-*-rtems*)
668 ;;
669 s390-*-* | s390x-*-*)
670 ;;
671 sh-*-* | sh[[34]]*-*-*)
672 ;;
673 sh64-*-* | sh5*-*-*)
674 ;;
675 sparc*-*-*)
676 ;;
677 x86_64-*-*)
678 ;;
679 *-*-*)
680 unsupported_languages="$unsupported_languages java"
681 ;;
682 esac
684 # Disable Java, libgcj or related libraries for some systems.
685 case "${target}" in
686 powerpc-*-darwin*)
687 ;;
688 i[[3456789]]86-*-darwin*)
689 ;;
690 x86_64-*-darwin[[912]]*)
691 ;;
692 *-*-darwin*)
693 noconfigdirs="$noconfigdirs ${libgcj}"
694 ;;
695 *-*-netware*)
696 noconfigdirs="$noconfigdirs ${libgcj}"
697 ;;
698 *-*-rtems*)
699 noconfigdirs="$noconfigdirs ${libgcj}"
700 ;;
701 *-*-tpf*)
702 noconfigdirs="$noconfigdirs ${libgcj}"
703 ;;
704 *-*-uclinux*)
705 noconfigdirs="$noconfigdirs ${libgcj}"
706 ;;
707 *-*-vxworks*)
708 noconfigdirs="$noconfigdirs ${libgcj}"
709 ;;
710 alpha*-*-*vms*)
711 noconfigdirs="$noconfigdirs ${libgcj}"
712 ;;
713 arm-wince-pe)
714 noconfigdirs="$noconfigdirs ${libgcj}"
715 ;;
716 arm*-*-symbianelf*)
717 noconfigdirs="$noconfigdirs ${libgcj}"
718 ;;
719 bfin-*-*)
720 noconfigdirs="$noconfigdirs target-boehm-gc"
721 ;;
722 cris-*-* | crisv32-*-*)
723 unsupported_languages="$unsupported_languages java"
724 case "${target}" in
725 *-*-linux*)
726 ;;
727 *) # See PR46792 regarding target-libffi.
728 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
729 esac
730 ;;
731 hppa*64*-*-linux*)
732 # In this case, it's because the hppa64-linux target is for
733 # the kernel only at this point and has no libc, and thus no
734 # headers, crt*.o, etc., all of which are needed by these.
735 unsupported_languages="$unsupported_languages java"
736 ;;
737 hppa*64*-*-hpux*)
738 noconfigdirs="$noconfigdirs ${libgcj}"
739 ;;
740 hppa*-hp-hpux11*)
741 ;;
742 hppa*-*-hpux*)
743 # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
744 # build on HP-UX 10.20.
745 noconfigdirs="$noconfigdirs ${libgcj}"
746 ;;
747 ia64*-*-*vms*)
748 noconfigdirs="$noconfigdirs ${libgcj}"
749 ;;
750 i[[3456789]]86-w64-mingw*)
751 noconfigdirs="$noconfigdirs ${libgcj}"
752 ;;
753 i[[3456789]]86-*-mingw*)
754 noconfigdirs="$noconfigdirs ${libgcj}"
755 ;;
756 x86_64-*-mingw*)
757 noconfigdirs="$noconfigdirs ${libgcj}"
758 ;;
759 mmix-*-*)
760 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc"
761 ;;
762 powerpc-*-aix*)
763 # copied from rs6000-*-* entry
764 noconfigdirs="$noconfigdirs ${libgcj}"
765 ;;
766 rs6000-*-aix*)
767 noconfigdirs="$noconfigdirs ${libgcj}"
768 ;;
769 *-*-lynxos*)
770 noconfigdirs="$noconfigdirs ${libgcj}"
771 ;;
772 esac
774 # Disable libgo for some systems where it is known to not work.
775 # For testing, you can easily override this with --enable-libgo.
776 if test x$enable_libgo = x; then
777 case "${target}" in
778 *-*-darwin*)
779 # PR 46986
780 noconfigdirs="$noconfigdirs target-libgo"
781 ;;
782 *-*-cygwin* | *-*-mingw*)
783 noconfigdirs="$noconfigdirs target-libgo"
784 ;;
785 *-*-aix*)
786 noconfigdirs="$noconfigdirs target-libgo"
787 ;;
788 esac
789 fi
791 # Default libgloss CPU subdirectory.
792 libgloss_dir="$target_cpu"
794 case "${target}" in
795 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
796 libgloss_dir=wince
797 ;;
798 aarch64*-*-* )
799 libgloss_dir=aarch64
800 ;;
801 arm*-*-*)
802 libgloss_dir=arm
803 ;;
804 cris-*-* | crisv32-*-*)
805 libgloss_dir=cris
806 ;;
807 hppa*-*-*)
808 libgloss_dir=pa
809 ;;
810 i[[3456789]]86-*-*)
811 libgloss_dir=i386
812 ;;
813 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
814 libgloss_dir=m68hc11
815 ;;
816 m68*-*-* | fido-*-*)
817 libgloss_dir=m68k
818 ;;
819 mips*-*-*)
820 libgloss_dir=mips
821 ;;
822 powerpc*-*-*)
823 libgloss_dir=rs6000
824 ;;
825 sparc*-*-*)
826 libgloss_dir=sparc
827 ;;
828 esac
830 # Disable newlib and libgloss for various target OSes.
831 case "${target}" in
832 alpha*-dec-osf*)
833 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
834 ;;
835 i[[3456789]]86-*-linux*)
836 # This section makes it possible to build newlib natively on linux.
837 # If we are using a cross compiler then don't configure newlib.
838 if test x${is_cross_compiler} != xno ; then
839 noconfigdirs="$noconfigdirs target-newlib"
840 fi
841 noconfigdirs="$noconfigdirs target-libgloss"
842 # If we are not using a cross compiler, do configure newlib.
843 # Note however, that newlib will only be configured in this situation
844 # if the --with-newlib option has been given, because otherwise
845 # 'target-newlib' will appear in skipdirs.
846 ;;
847 i[[3456789]]86-*-rdos*)
848 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
849 ;;
850 sh*-*-pe|mips*-*-pe|arm-wince-pe)
851 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
852 ;;
853 sparc-*-sunos4*)
854 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
855 ;;
856 *-*-aix*)
857 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
858 ;;
859 *-*-beos*)
860 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
861 ;;
862 *-*-chorusos)
863 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
864 ;;
865 *-*-dragonfly*)
866 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
867 ;;
868 *-*-freebsd*)
869 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
870 ;;
871 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
872 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
873 ;;
874 *-*-lynxos*)
875 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
876 ;;
877 *-*-mingw*)
878 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
879 ;;
880 *-*-netbsd*)
881 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
882 ;;
883 *-*-netware*)
884 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
885 ;;
886 *-*-tpf*)
887 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
888 ;;
889 *-*-uclinux*)
890 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
891 ;;
892 *-*-vxworks*)
893 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
894 ;;
895 esac
897 case "${target}" in
898 *-*-chorusos)
899 ;;
900 powerpc-*-darwin*)
901 noconfigdirs="$noconfigdirs ld gas gdb gprof"
902 noconfigdirs="$noconfigdirs sim target-rda"
903 ;;
904 i[[3456789]]86-*-darwin*)
905 noconfigdirs="$noconfigdirs ld gprof"
906 noconfigdirs="$noconfigdirs sim target-rda"
907 ;;
908 x86_64-*-darwin[[912]]*)
909 noconfigdirs="$noconfigdirs ld gas gprof"
910 noconfigdirs="$noconfigdirs sim target-rda"
911 ;;
912 *-*-darwin*)
913 noconfigdirs="$noconfigdirs ld gas gdb gprof"
914 noconfigdirs="$noconfigdirs sim target-rda"
915 ;;
916 *-*-dragonfly*)
917 ;;
918 *-*-freebsd*)
919 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
920 && test -f /usr/local/include/gmp.h; then
921 with_gmp=/usr/local
922 fi
923 ;;
924 *-*-kaos*)
925 # Remove unsupported stuff on all kaOS configurations.
926 noconfigdirs="$noconfigdirs target-libgloss"
927 ;;
928 *-*-netbsd*)
929 ;;
930 *-*-netware*)
931 ;;
932 *-*-rtems*)
933 noconfigdirs="$noconfigdirs target-libgloss"
934 ;;
935 # The tpf target doesn't support gdb yet.
936 *-*-tpf*)
937 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
938 ;;
939 *-*-uclinux*)
940 noconfigdirs="$noconfigdirs target-rda"
941 ;;
942 *-*-vxworks*)
943 ;;
944 alpha*-dec-osf*)
945 # ld works, but does not support shared libraries.
946 # gas doesn't generate exception information.
947 noconfigdirs="$noconfigdirs gas ld"
948 ;;
949 alpha*-*-*vms*)
950 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
951 ;;
952 alpha*-*-*)
953 # newlib is not 64 bit ready
954 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
955 ;;
956 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
957 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
958 ;;
959 arc-*-*|arceb-*-*)
960 noconfigdirs="$noconfigdirs target-libgloss"
961 ;;
962 arm-*-pe*)
963 noconfigdirs="$noconfigdirs target-libgloss"
964 ;;
965 arm-*-riscix*)
966 noconfigdirs="$noconfigdirs ld target-libgloss"
967 ;;
968 avr-*-rtems*)
969 ;;
970 avr-*-*)
971 if test x${with_avrlibc} != xno; then
972 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
973 fi
974 ;;
975 c4x-*-* | tic4x-*-*)
976 noconfigdirs="$noconfigdirs target-libgloss"
977 ;;
978 tic54x-*-*)
979 noconfigdirs="$noconfigdirs target-libgloss gdb"
980 ;;
981 d10v-*-*)
982 noconfigdirs="$noconfigdirs target-libgloss"
983 ;;
984 d30v-*-*)
985 noconfigdirs="$noconfigdirs gdb"
986 ;;
987 fr30-*-elf*)
988 noconfigdirs="$noconfigdirs gdb"
989 ;;
990 moxie-*-*)
991 noconfigdirs="$noconfigdirs gprof"
992 ;;
993 h8300*-*-*)
994 noconfigdirs="$noconfigdirs target-libgloss"
995 ;;
996 h8500-*-*)
997 noconfigdirs="$noconfigdirs target-libgloss"
998 ;;
999 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1000 ;;
1001 hppa*64*-*-linux*)
1002 ;;
1003 hppa*-*-linux*)
1004 ;;
1005 hppa*-*-*elf* | \
1006 hppa*-*-lites* | \
1007 hppa*-*-openbsd* | \
1008 hppa*64*-*-*)
1009 ;;
1010 hppa*-hp-hpux11*)
1011 noconfigdirs="$noconfigdirs ld"
1012 ;;
1013 hppa*-*-pro*)
1014 ;;
1015 hppa*-*-*)
1016 noconfigdirs="$noconfigdirs ld"
1017 ;;
1018 i960-*-*)
1019 noconfigdirs="$noconfigdirs gdb"
1020 ;;
1021 ia64*-*-elf*)
1022 # No gdb support yet.
1023 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1024 ;;
1025 ia64*-**-hpux*)
1026 # No ld support yet.
1027 noconfigdirs="$noconfigdirs libgui itcl ld"
1028 ;;
1029 ia64*-*-*vms*)
1030 # No ld support yet.
1031 noconfigdirs="$noconfigdirs libgui itcl ld"
1032 ;;
1033 i[[3456789]]86-w64-mingw*)
1034 ;;
1035 i[[3456789]]86-*-mingw*)
1036 target_configdirs="$target_configdirs target-winsup"
1037 ;;
1038 *-*-cygwin*)
1039 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1040 noconfigdirs="$noconfigdirs target-libgloss"
1041 # always build newlib if winsup directory is present.
1042 if test -d "$srcdir/winsup/cygwin"; then
1043 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1044 elif test -d "$srcdir/newlib"; then
1045 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1046 fi
1047 ;;
1048 i[[3456789]]86-*-pe)
1049 noconfigdirs="$noconfigdirs target-libgloss"
1050 ;;
1051 i[[3456789]]86-*-sco3.2v5*)
1052 # The linker does not yet know about weak symbols in COFF,
1053 # and is not configured to handle mixed ELF and COFF.
1054 noconfigdirs="$noconfigdirs ld target-libgloss"
1055 ;;
1056 i[[3456789]]86-*-sco*)
1057 noconfigdirs="$noconfigdirs gprof target-libgloss"
1058 ;;
1059 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1060 noconfigdirs="$noconfigdirs target-libgloss"
1061 ;;
1062 i[[3456789]]86-*-sysv4*)
1063 noconfigdirs="$noconfigdirs target-libgloss"
1064 ;;
1065 i[[3456789]]86-*-beos*)
1066 noconfigdirs="$noconfigdirs gdb"
1067 ;;
1068 i[[3456789]]86-*-rdos*)
1069 noconfigdirs="$noconfigdirs gdb"
1070 ;;
1071 mmix-*-*)
1072 noconfigdirs="$noconfigdirs gdb"
1073 ;;
1074 mt-*-*)
1075 noconfigdirs="$noconfigdirs sim"
1076 ;;
1077 powerpc-*-aix*)
1078 # copied from rs6000-*-* entry
1079 noconfigdirs="$noconfigdirs gprof"
1080 ;;
1081 powerpc*-*-winnt* | powerpc*-*-pe*)
1082 target_configdirs="$target_configdirs target-winsup"
1083 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1084 # always build newlib.
1085 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1086 ;;
1087 # This is temporary until we can link against shared libraries
1088 powerpcle-*-solaris*)
1089 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1090 ;;
1091 powerpc-*-beos*)
1092 noconfigdirs="$noconfigdirs gdb"
1093 ;;
1094 rs6000-*-lynxos*)
1095 noconfigdirs="$noconfigdirs gprof"
1096 ;;
1097 rs6000-*-aix*)
1098 noconfigdirs="$noconfigdirs gprof"
1099 ;;
1100 rs6000-*-*)
1101 noconfigdirs="$noconfigdirs gprof"
1102 ;;
1103 m68k-apollo-*)
1104 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1105 ;;
1106 microblaze*)
1107 noconfigdirs="$noconfigdirs gprof"
1108 ;;
1109 mips*-sde-elf* | mips*-mti-elf*)
1110 if test x$with_newlib = xyes; then
1111 noconfigdirs="$noconfigdirs gprof"
1112 fi
1113 ;;
1114 mips*-*-irix5*)
1115 noconfigdirs="$noconfigdirs gprof target-libgloss"
1116 ;;
1117 mips*-*-irix6*)
1118 noconfigdirs="$noconfigdirs gprof target-libgloss"
1119 ;;
1120 mips*-*-bsd*)
1121 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1122 ;;
1123 mips*-*-linux*)
1124 ;;
1125 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1126 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1127 noconfigdirs="$noconfigdirs ld gas gprof"
1128 ;;
1129 mips*-*-*)
1130 noconfigdirs="$noconfigdirs gprof"
1131 ;;
1132 sh-*-* | sh64-*-*)
1133 case "${target}" in
1134 sh*-*-elf)
1135 ;;
1136 *)
1137 noconfigdirs="$noconfigdirs target-libgloss" ;;
1138 esac
1139 ;;
1140 sparc-*-sunos4*)
1141 if test x${is_cross_compiler} = xno ; then
1142 use_gnu_ld=no
1143 fi
1144 ;;
1145 tic6x-*-*)
1146 noconfigdirs="$noconfigdirs sim"
1147 ;;
1148 tilepro*-*-* | tilegx*-*-*)
1149 noconfigdirs="$noconfigdirs sim"
1150 ;;
1151 v810-*-*)
1152 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1153 ;;
1154 vax-*-*)
1155 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1156 ;;
1157 esac
1159 # If we aren't building newlib, then don't build libgloss, since libgloss
1160 # depends upon some newlib header files.
1161 case "${noconfigdirs}" in
1162 *target-libgloss*) ;;
1163 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1164 esac
1166 # Work in distributions that contain no compiler tools, like Autoconf.
1167 host_makefile_frag=/dev/null
1168 if test -d ${srcdir}/config ; then
1169 case "${host}" in
1170 i[[3456789]]86-*-msdosdjgpp*)
1171 host_makefile_frag="config/mh-djgpp"
1172 ;;
1173 *-cygwin*)
1174 ACX_CHECK_CYGWIN_CAT_WORKS
1175 host_makefile_frag="config/mh-cygwin"
1176 ;;
1177 *-mingw*)
1178 host_makefile_frag="config/mh-mingw"
1179 ;;
1180 alpha*-*-linux*)
1181 host_makefile_frag="config/mh-alpha-linux"
1182 ;;
1183 hppa*-hp-hpux10*)
1184 host_makefile_frag="config/mh-pa-hpux10"
1185 ;;
1186 hppa*-hp-hpux*)
1187 host_makefile_frag="config/mh-pa"
1188 ;;
1189 hppa*-*)
1190 host_makefile_frag="config/mh-pa"
1191 ;;
1192 *-*-darwin*)
1193 host_makefile_frag="config/mh-darwin"
1194 ;;
1195 powerpc-*-aix*)
1196 host_makefile_frag="config/mh-ppc-aix"
1197 ;;
1198 rs6000-*-aix*)
1199 host_makefile_frag="config/mh-ppc-aix"
1200 ;;
1201 esac
1202 fi
1204 if test "${build}" != "${host}" ; then
1205 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1206 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1207 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1208 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1209 GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1210 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1211 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1212 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1213 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1214 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1215 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1216 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1217 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1218 else
1219 AR_FOR_BUILD="\$(AR)"
1220 AS_FOR_BUILD="\$(AS)"
1221 CC_FOR_BUILD="\$(CC)"
1222 CXX_FOR_BUILD="\$(CXX)"
1223 GCJ_FOR_BUILD="\$(GCJ)"
1224 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1225 GOC_FOR_BUILD="\$(GOC)"
1226 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1227 LD_FOR_BUILD="\$(LD)"
1228 NM_FOR_BUILD="\$(NM)"
1229 RANLIB_FOR_BUILD="\$(RANLIB)"
1230 WINDRES_FOR_BUILD="\$(WINDRES)"
1231 WINDMC_FOR_BUILD="\$(WINDMC)"
1232 fi
1234 AC_PROG_CC
1235 AC_PROG_CXX
1237 # We must set the default linker to the linker used by gcc for the correct
1238 # operation of libtool. If LD is not defined and we are using gcc, try to
1239 # set the LD default to the ld used by gcc.
1240 if test -z "$LD"; then
1241 if test "$GCC" = yes; then
1242 case $build in
1243 *-*-mingw*)
1244 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1245 *)
1246 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1247 esac
1248 case $gcc_prog_ld in
1249 # Accept absolute paths.
1250 [[\\/]* | [A-Za-z]:[\\/]*)]
1251 LD="$gcc_prog_ld" ;;
1252 esac
1253 fi
1254 fi
1256 # Check whether -static-libstdc++ -static-libgcc is supported.
1257 have_static_libs=no
1258 if test "$GCC" = yes; then
1259 saved_LDFLAGS="$LDFLAGS"
1261 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1262 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1263 AC_LANG_PUSH(C++)
1264 AC_LINK_IFELSE([
1265 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1266 #error -static-libstdc++ not implemented
1267 #endif
1268 int main() {}],
1269 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1270 [AC_MSG_RESULT([no])])
1271 AC_LANG_POP(C++)
1273 LDFLAGS="$saved_LDFLAGS"
1274 fi
1276 ACX_PROG_GNAT
1277 ACX_PROG_CMP_IGNORE_INITIAL
1279 AC_ARG_ENABLE([bootstrap],
1280 [AS_HELP_STRING([--enable-bootstrap],
1281 [enable bootstrapping @<:@yes if native build@:>@])],,
1282 enable_bootstrap=default)
1284 # Issue errors and warnings for invalid/strange bootstrap combinations.
1285 if test -r $srcdir/gcc/configure; then
1286 have_compiler=yes
1287 else
1288 have_compiler=no
1289 fi
1291 case "$have_compiler:$host:$target:$enable_bootstrap" in
1292 *:*:*:no) ;;
1294 # Default behavior. Enable bootstrap if we have a compiler
1295 # and we are in a native configuration.
1296 yes:$build:$build:default)
1297 enable_bootstrap=yes ;;
1299 *:*:*:default)
1300 enable_bootstrap=no ;;
1302 # We have a compiler and we are in a native configuration, bootstrap is ok
1303 yes:$build:$build:yes)
1304 ;;
1306 # Other configurations, but we have a compiler. Assume the user knows
1307 # what he's doing.
1308 yes:*:*:yes)
1309 AC_MSG_WARN([trying to bootstrap a cross compiler])
1310 ;;
1312 # No compiler: if they passed --enable-bootstrap explicitly, fail
1313 no:*:*:yes)
1314 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1316 # Fail if wrong command line
1317 *)
1318 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1319 ;;
1320 esac
1322 # Used for setting $lt_cv_objdir
1323 _LT_CHECK_OBJDIR
1325 # Check for GMP, MPFR and MPC
1326 gmplibs="-lmpc -lmpfr -lgmp"
1327 gmpinc=
1328 have_gmp=no
1330 # Specify a location for mpc
1331 # check for this first so it ends up on the link line before mpfr.
1332 AC_ARG_WITH(mpc,
1333 [AS_HELP_STRING([--with-mpc=PATH],
1334 [specify prefix directory for installed MPC package.
1335 Equivalent to --with-mpc-include=PATH/include
1336 plus --with-mpc-lib=PATH/lib])])
1337 AC_ARG_WITH(mpc-include,
1338 [AS_HELP_STRING([--with-mpc-include=PATH],
1339 [specify directory for installed MPC include files])])
1340 AC_ARG_WITH(mpc-lib,
1341 [AS_HELP_STRING([--with-mpc-lib=PATH],
1342 [specify directory for the installed MPC library])])
1344 if test "x$with_mpc" != x; then
1345 gmplibs="-L$with_mpc/lib $gmplibs"
1346 gmpinc="-I$with_mpc/include $gmpinc"
1347 fi
1348 if test "x$with_mpc_include" != x; then
1349 gmpinc="-I$with_mpc_include $gmpinc"
1350 fi
1351 if test "x$with_mpc_lib" != x; then
1352 gmplibs="-L$with_mpc_lib $gmplibs"
1353 fi
1354 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1355 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1356 gmpinc='-I$$s/mpc/src '"$gmpinc"
1357 # Do not test the mpc version. Assume that it is sufficient, since
1358 # it is in the source tree, and the library has not been built yet
1359 # but it would be included on the link line in the version check below
1360 # hence making the test fail.
1361 have_gmp=yes
1362 fi
1364 # Specify a location for mpfr
1365 # check for this first so it ends up on the link line before gmp.
1366 AC_ARG_WITH(mpfr-dir,
1367 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1368 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1369 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1371 AC_ARG_WITH(mpfr,
1372 [AS_HELP_STRING([--with-mpfr=PATH],
1373 [specify prefix directory for installed MPFR package.
1374 Equivalent to --with-mpfr-include=PATH/include
1375 plus --with-mpfr-lib=PATH/lib])])
1376 AC_ARG_WITH(mpfr-include,
1377 [AS_HELP_STRING([--with-mpfr-include=PATH],
1378 [specify directory for installed MPFR include files])])
1379 AC_ARG_WITH(mpfr-lib,
1380 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1381 [specify directory for the installed MPFR library])])
1383 if test "x$with_mpfr" != x; then
1384 gmplibs="-L$with_mpfr/lib $gmplibs"
1385 gmpinc="-I$with_mpfr/include $gmpinc"
1386 fi
1387 if test "x$with_mpfr_include" != x; then
1388 gmpinc="-I$with_mpfr_include $gmpinc"
1389 fi
1390 if test "x$with_mpfr_lib" != x; then
1391 gmplibs="-L$with_mpfr_lib $gmplibs"
1392 fi
1393 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1394 # MPFR v3.1.0 moved the sources into a src sub-directory.
1395 if test -d ${srcdir}/mpfr/src; then
1396 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1397 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1398 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1399 else
1400 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
1401 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1402 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
1403 fi
1404 # Do not test the mpfr version. Assume that it is sufficient, since
1405 # it is in the source tree, and the library has not been built yet
1406 # but it would be included on the link line in the version check below
1407 # hence making the test fail.
1408 have_gmp=yes
1409 fi
1411 # Specify a location for gmp
1412 AC_ARG_WITH(gmp-dir,
1413 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1414 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1415 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1417 AC_ARG_WITH(gmp,
1418 [AS_HELP_STRING([--with-gmp=PATH],
1419 [specify prefix directory for the installed GMP package.
1420 Equivalent to --with-gmp-include=PATH/include
1421 plus --with-gmp-lib=PATH/lib])])
1422 AC_ARG_WITH(gmp-include,
1423 [AS_HELP_STRING([--with-gmp-include=PATH],
1424 [specify directory for installed GMP include files])])
1425 AC_ARG_WITH(gmp-lib,
1426 [AS_HELP_STRING([--with-gmp-lib=PATH],
1427 [specify directory for the installed GMP library])])
1430 if test "x$with_gmp" != x; then
1431 gmplibs="-L$with_gmp/lib $gmplibs"
1432 gmpinc="-I$with_gmp/include $gmpinc"
1433 fi
1434 if test "x$with_gmp_include" != x; then
1435 gmpinc="-I$with_gmp_include $gmpinc"
1436 fi
1437 if test "x$with_gmp_lib" != x; then
1438 gmplibs="-L$with_gmp_lib $gmplibs"
1439 fi
1440 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1441 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1442 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1443 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1444 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1445 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1446 # Do not test the gmp version. Assume that it is sufficient, since
1447 # it is in the source tree, and the library has not been built yet
1448 # but it would be included on the link line in the version check below
1449 # hence making the test fail.
1450 have_gmp=yes
1451 fi
1453 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1454 have_gmp=yes
1455 saved_CFLAGS="$CFLAGS"
1456 CFLAGS="$CFLAGS $gmpinc"
1457 # Check for the recommended and required versions of GMP.
1458 AC_MSG_CHECKING([for the correct version of gmp.h])
1459 AC_TRY_COMPILE([#include "gmp.h"],[
1460 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1461 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1462 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1463 choke me
1464 #endif
1465 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1466 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1467 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1468 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1469 choke me
1470 #endif
1471 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1472 [AC_MSG_RESULT([no]); have_gmp=no])
1474 # If we have GMP, check the MPFR version.
1475 if test x"$have_gmp" = xyes; then
1476 # Check for the recommended and required versions of MPFR.
1477 AC_MSG_CHECKING([for the correct version of mpfr.h])
1478 AC_TRY_COMPILE([#include <gmp.h>
1479 #include <mpfr.h>],[
1480 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1481 choke me
1482 #endif
1483 ], [AC_TRY_COMPILE([#include <gmp.h>
1484 #include <mpfr.h>],[
1485 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1486 choke me
1487 #endif
1488 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1489 [AC_MSG_RESULT([no]); have_gmp=no])
1490 fi
1492 # Check for the MPC header version.
1493 if test x"$have_gmp" = xyes ; then
1494 # Check for the recommended and required versions of MPC.
1495 AC_MSG_CHECKING([for the correct version of mpc.h])
1496 AC_TRY_COMPILE([#include <mpc.h>],[
1497 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1498 choke me
1499 #endif
1500 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1501 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1502 choke me
1503 #endif
1504 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1505 [AC_MSG_RESULT([no]); have_gmp=no])
1506 fi
1508 # Now check the MPFR library.
1509 if test x"$have_gmp" = xyes; then
1510 saved_LIBS="$LIBS"
1511 LIBS="$LIBS $gmplibs"
1512 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1513 AC_TRY_LINK([#include <mpc.h>],[
1514 mpfr_t n;
1515 mpfr_t x;
1516 mpc_t c;
1517 int t;
1518 mpfr_init (n);
1519 mpfr_init (x);
1520 mpfr_atan2 (n, n, x, GMP_RNDN);
1521 mpfr_erfc (n, x, GMP_RNDN);
1522 mpfr_subnormalize (x, t, GMP_RNDN);
1523 mpfr_clear(n);
1524 mpfr_clear(x);
1525 mpc_init2 (c, 53);
1526 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1527 mpc_cosh (c, c, MPC_RNDNN);
1528 mpc_pow (c, c, c, MPC_RNDNN);
1529 mpc_acosh (c, c, MPC_RNDNN);
1530 mpc_clear (c);
1531 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1532 LIBS="$saved_LIBS"
1533 fi
1535 CFLAGS="$saved_CFLAGS"
1537 # The library versions listed in the error message below should match
1538 # the HARD-minimums enforced above.
1539 if test x$have_gmp != xyes; then
1540 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1541 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1542 their locations. Source code for these libraries can be found at
1543 their respective hosting sites as well as at
1544 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1545 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1546 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1547 make sure that you have installed both the libraries and the header
1548 files. They may be located in separate packages.])
1549 fi
1550 fi
1552 # Flags needed for both GMP, MPFR and/or MPC.
1553 AC_SUBST(gmplibs)
1554 AC_SUBST(gmpinc)
1555 AC_SUBST(extra_mpfr_configure_flags)
1556 AC_SUBST(extra_mpc_gmp_configure_flags)
1557 AC_SUBST(extra_mpc_mpfr_configure_flags)
1558 AC_SUBST(extra_isl_gmp_configure_flags)
1560 # Allow host libstdc++ to be specified for static linking with PPL.
1561 AC_ARG_WITH(host-libstdcxx,
1562 [AS_HELP_STRING([--with-host-libstdcxx=L],
1563 [use linker arguments L to link with libstdc++
1564 when linking with PPL])])
1566 case $with_host_libstdcxx in
1567 no|yes)
1568 AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
1569 ;;
1570 esac
1572 # Libraries to use for stage1 or when not bootstrapping.
1573 AC_ARG_WITH(stage1-libs,
1574 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1575 [if test "$withval" = "no" -o "$withval" = "yes"; then
1576 stage1_libs=
1577 else
1578 stage1_libs=$withval
1579 fi],
1580 [stage1_libs=$with_host_libstdcxx])
1581 AC_SUBST(stage1_libs)
1583 # Linker flags to use for stage1 or when not bootstrapping.
1584 AC_ARG_WITH(stage1-ldflags,
1585 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1586 [if test "$withval" = "no" -o "$withval" = "yes"; then
1587 stage1_ldflags=
1588 else
1589 stage1_ldflags=$withval
1590 fi],
1591 [stage1_ldflags=
1592 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1593 # if supported. But if the user explicitly specified the libraries to use,
1594 # trust that they are doing what they want.
1595 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1596 stage1_ldflags="-static-libstdc++ -static-libgcc"
1597 fi])
1598 AC_SUBST(stage1_ldflags)
1600 # Libraries to use for stage2 and later builds. This defaults to the
1601 # argument passed to --with-host-libstdcxx.
1602 AC_ARG_WITH(boot-libs,
1603 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1604 [if test "$withval" = "no" -o "$withval" = "yes"; then
1605 poststage1_libs=
1606 else
1607 poststage1_libs=$withval
1608 fi],
1609 [poststage1_libs=$with_host_libstdcxx])
1610 AC_SUBST(poststage1_libs)
1612 # Linker flags to use for stage2 and later builds.
1613 AC_ARG_WITH(boot-ldflags,
1614 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1615 [linker flags for stage2 and later])],
1616 [if test "$withval" = "no" -o "$withval" = "yes"; then
1617 poststage1_ldflags=
1618 else
1619 poststage1_ldflags=$withval
1620 fi],
1621 [poststage1_ldflags=
1622 # In stages 2 and 3, default to linking libstdc++ and libgcc
1623 # statically. But if the user explicitly specified the libraries to
1624 # use, trust that they are doing what they want.
1625 if test "$poststage1_libs" = ""; then
1626 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1627 fi])
1628 AC_SUBST(poststage1_ldflags)
1630 # GCC GRAPHITE dependences, ISL and CLOOG which in turn requires ISL.
1631 # Basic setup is inlined here, actual checks are in config/cloog.m4 and
1632 # config/isl.m4
1634 AC_ARG_WITH(cloog,
1635 [AS_HELP_STRING(
1636 [--with-cloog=PATH],
1637 [Specify prefix directory for the installed CLooG-ISL package.
1638 Equivalent to --with-cloog-include=PATH/include
1639 plus --with-cloog-lib=PATH/lib])])
1640 AC_ARG_WITH(isl,
1641 [AS_HELP_STRING(
1642 [--with-isl=PATH],
1643 [Specify prefix directory for the installed ISL package.
1644 Equivalent to --with-isl-include=PATH/include
1645 plus --with-isl-lib=PATH/lib])])
1647 # Treat --without-isl as a request to disable
1648 # GRAPHITE support and skip all following checks.
1649 if test "x$with_isl" != "xno"; then
1650 # Check for ISL
1651 dnl Provide configure switches and initialize islinc & isllibs
1652 dnl with user input.
1653 ISL_INIT_FLAGS
1654 dnl The versions of ISL that work for Graphite
1655 ISL_CHECK_VERSION(0,12)
1656 dnl Only execute fail-action, if ISL has been requested.
1657 ISL_IF_FAILED([
1658 AC_MSG_ERROR([Unable to find a usable ISL. See config.log for details.])])
1660 if test "x$gcc_cv_isl" != "xno"; then
1661 # Check for CLOOG
1662 dnl Provide configure switches and initialize clooginc & clooglibs
1663 dnl with user input.
1664 CLOOG_INIT_FLAGS
1665 dnl The versions of CLooG that work for Graphite.
1666 CLOOG_CHECK_VERSION(0,18,1)
1668 dnl Only execute fail-action, if CLooG has been requested.
1669 CLOOG_IF_FAILED([
1670 AC_MSG_ERROR([Unable to find a usable CLooG. See config.log for details.])])
1671 fi
1672 fi
1674 # If the ISL check failed, disable builds of in-tree
1675 # variants of both ISL and CLooG
1676 if test "x$with_isl" = xno ||
1677 test "x$gcc_cv_isl" = xno; then
1678 noconfigdirs="$noconfigdirs cloog isl"
1679 islinc=
1680 clooginc=
1681 clooglibs=
1682 fi
1684 # If the CLooG check failed, disable builds of in-tree
1685 # variants of CLooG
1686 if test "x$with_cloog" = xno ||
1687 test "x$gcc_cv_cloog" = xno; then
1688 noconfigdirs="$noconfigdirs cloog isl"
1689 clooginc=
1690 clooglibs=
1691 fi
1693 AC_SUBST(isllibs)
1694 AC_SUBST(islinc)
1695 AC_SUBST(clooglibs)
1696 AC_SUBST(clooginc)
1698 # Check for LTO support.
1699 AC_ARG_ENABLE(lto,
1700 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1701 enable_lto=$enableval,
1702 enable_lto=yes; default_enable_lto=yes)
1704 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1705 build_lto_plugin=yes
1706 ],[if test x"$default_enable_lto" = x"yes" ; then
1707 case $target in
1708 *-apple-darwin9* | *-cygwin* | *-mingw*) ;;
1709 # On other non-ELF platforms, LTO has yet to be validated.
1710 *) enable_lto=no ;;
1711 esac
1712 else
1713 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1714 # It would also be nice to check the binutils support, but we don't
1715 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1716 # warn during gcc/ subconfigure; unless you're bootstrapping with
1717 # -flto it won't be needed until after installation anyway.
1718 case $target in
1719 *-cygwin* | *-mingw* | *-apple-darwin*) ;;
1720 *) if test x"$enable_lto" = x"yes"; then
1721 AC_MSG_ERROR([LTO support is not enabled for this target.])
1722 fi
1723 ;;
1724 esac
1725 fi
1726 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1727 # Build it unless LTO was explicitly disabled.
1728 case $target in
1729 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1730 *) ;;
1731 esac
1732 ])
1734 AC_ARG_ENABLE(linker-plugin-configure-flags,
1735 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1736 [additional flags for configuring linker plugins @<:@none@:>@])],
1737 extra_linker_plugin_configure_flags=$enableval,
1738 extra_linker_plugin_configure_flags=)
1739 AC_SUBST(extra_linker_plugin_configure_flags)
1740 AC_ARG_ENABLE(linker-plugin-flags,
1741 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1742 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1743 extra_linker_plugin_flags=$enableval,
1744 extra_linker_plugin_flags=)
1745 AC_SUBST(extra_linker_plugin_flags)
1748 # By default, C and C++ are the only stage 1 languages.
1749 stage1_languages=,c,
1751 # Target libraries that we bootstrap.
1752 bootstrap_target_libs=,target-libgcc,
1754 # Figure out what language subdirectories are present.
1755 # Look if the user specified --enable-languages="..."; if not, use
1756 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1757 # go away some day.
1758 # NB: embedded tabs in this IF block -- do not untabify
1759 if test -d ${srcdir}/gcc; then
1760 if test x"${enable_languages+set}" != xset; then
1761 if test x"${LANGUAGES+set}" = xset; then
1762 enable_languages="${LANGUAGES}"
1763 echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1764 else
1765 enable_languages=all
1766 fi
1767 else
1768 if test x"${enable_languages}" = x ||
1769 test x"${enable_languages}" = xyes;
1770 then
1771 echo configure.in: --enable-languages needs at least one language argument 1>&2
1772 exit 1
1773 fi
1774 fi
1775 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1777 # 'f95' is the old name for the 'fortran' language. We issue a warning
1778 # and make the substitution.
1779 case ,${enable_languages}, in
1780 *,f95,*)
1781 echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1782 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1783 ;;
1784 esac
1786 # If bootstrapping, C++ must be enabled.
1787 case ",$enable_languages,:$enable_bootstrap" in
1788 *,c++,*:*) ;;
1789 *:yes)
1790 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1791 enable_languages="${enable_languages},c++"
1792 else
1793 AC_MSG_ERROR([bootstrapping requires c++ sources])
1794 fi
1795 ;;
1796 esac
1798 # First scan to see if an enabled language requires some other language.
1799 # We assume that a given config-lang.in will list all the language
1800 # front ends it requires, even if some are required indirectly.
1801 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1802 case ${lang_frag} in
1803 ..) ;;
1804 # The odd quoting in the next line works around
1805 # an apparent bug in bash 1.12 on linux.
1806 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1807 *)
1808 # From the config-lang.in, get $language, $lang_requires, and
1809 # $lang_requires_boot_languages.
1810 language=
1811 lang_requires=
1812 lang_requires_boot_languages=
1813 . ${lang_frag}
1814 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1815 case ,${enable_languages}, in
1816 *,$other,*) ;;
1817 *,all,*) ;;
1818 *,$language,*)
1819 echo " \`$other' language required by \`$language'; enabling" 1>&2
1820 enable_languages="${enable_languages},${other}"
1821 ;;
1822 esac
1823 done
1824 for other in ${lang_requires_boot_languages} ; do
1825 if test "$other" != "c"; then
1826 case ,${enable_stage1_languages}, in
1827 *,$other,*) ;;
1828 *,all,*) ;;
1829 *)
1830 case ,${enable_languages}, in
1831 *,$language,*)
1832 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1833 enable_stage1_languages="$enable_stage1_languages,${other}"
1834 ;;
1835 esac
1836 ;;
1837 esac
1838 fi
1839 done
1840 ;;
1841 esac
1842 done
1844 new_enable_languages=,c,
1846 # If LTO is enabled, add the LTO front end.
1847 extra_host_libiberty_configure_flags=
1848 if test "$enable_lto" = "yes" ; then
1849 case ,${enable_languages}, in
1850 *,lto,*) ;;
1851 *) enable_languages="${enable_languages},lto" ;;
1852 esac
1853 if test "${build_lto_plugin}" = "yes" ; then
1854 configdirs="$configdirs lto-plugin"
1855 extra_host_libiberty_configure_flags=--enable-shared
1856 fi
1857 fi
1858 AC_SUBST(extra_host_libiberty_configure_flags)
1860 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1861 potential_languages=,c,
1863 enabled_target_libs=
1864 disabled_target_libs=
1866 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1867 case ${lang_frag} in
1868 ..) ;;
1869 # The odd quoting in the next line works around
1870 # an apparent bug in bash 1.12 on linux.
1871 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1872 *)
1873 # From the config-lang.in, get $language, $target_libs,
1874 # $lang_dirs, $boot_language, and $build_by_default
1875 language=
1876 target_libs=
1877 lang_dirs=
1878 subdir_requires=
1879 boot_language=no
1880 build_by_default=yes
1881 . ${lang_frag}
1882 if test x${language} = x; then
1883 echo "${lang_frag} doesn't set \$language." 1>&2
1884 exit 1
1885 fi
1887 if test "$language" = "c++"; then
1888 boot_language=yes
1889 fi
1891 add_this_lang=no
1892 case ,${enable_languages}, in
1893 *,${language},*)
1894 # Language was explicitly selected; include it
1895 # unless it is C, which is enabled by default.
1896 if test "$language" != "c"; then
1897 add_this_lang=yes
1898 fi
1899 ;;
1900 *,all,*)
1901 # 'all' was selected, select it if it is a default language
1902 if test "$language" != "c"; then
1903 add_this_lang=${build_by_default}
1904 fi
1905 ;;
1906 esac
1908 # Disable languages that need other directories if these aren't available.
1909 for i in $subdir_requires; do
1910 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1911 case ,${enable_languages}, in
1912 *,${language},*)
1913 # Specifically requested language; tell them.
1914 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1915 ;;
1916 *)
1917 # Silently disable.
1918 add_this_lang=unsupported
1919 ;;
1920 esac
1921 done
1923 # Disable Ada if no preexisting GNAT is available.
1924 case ,${enable_languages},:${language}:${have_gnat} in
1925 *,${language},*:ada:no)
1926 # Specifically requested language; tell them.
1927 AC_MSG_ERROR([GNAT is required to build $language])
1928 ;;
1929 *:ada:no)
1930 # Silently disable.
1931 add_this_lang=unsupported
1932 ;;
1933 esac
1935 # Disable a language that is unsupported by the target.
1936 case " $unsupported_languages " in
1937 *" $language "*)
1938 add_this_lang=unsupported
1939 ;;
1940 esac
1942 case $add_this_lang in
1943 unsupported)
1944 # Remove language-dependent dirs.
1945 disabled_target_libs="$disabled_target_libs $target_libs"
1946 noconfigdirs="$noconfigdirs $lang_dirs"
1947 ;;
1948 no)
1949 # Remove language-dependent dirs; still show language as supported.
1950 disabled_target_libs="$disabled_target_libs $target_libs"
1951 noconfigdirs="$noconfigdirs $lang_dirs"
1952 potential_languages="${potential_languages}${language},"
1953 ;;
1954 yes)
1955 new_enable_languages="${new_enable_languages}${language},"
1956 potential_languages="${potential_languages}${language},"
1957 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1958 enabled_target_libs="$enabled_target_libs $target_libs"
1959 case "${boot_language}:,$enable_stage1_languages," in
1960 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
1961 # Add to (comma-separated) list of stage 1 languages.
1962 case ",$stage1_languages," in
1963 *,$language,* | ,yes, | ,all,) ;;
1964 *) stage1_languages="${stage1_languages}${language}," ;;
1965 esac
1966 # We need to bootstrap any supporting libraries.
1967 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
1968 ;;
1969 esac
1970 ;;
1971 esac
1972 ;;
1973 esac
1974 done
1976 # Add target libraries which are only needed for disabled languages
1977 # to noconfigdirs.
1978 if test -n "$disabled_target_libs"; then
1979 for dir in $disabled_target_libs; do
1980 case " $enabled_target_libs " in
1981 *" ${dir} "*) ;;
1982 *) noconfigdirs="$noconfigdirs $dir" ;;
1983 esac
1984 done
1985 fi
1987 AC_ARG_ENABLE(stage1-languages,
1988 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
1989 [choose additional languages to build during
1990 stage1. Mostly useful for compiler development])],
1991 [case ,${enable_stage1_languages}, in
1992 ,no,|,,)
1993 # Set it to something that will have no effect in the loop below
1994 enable_stage1_languages=c ;;
1995 ,yes,)
1996 enable_stage1_languages=`echo $new_enable_languages | \
1997 sed -e "s/^,//" -e "s/,$//" ` ;;
1998 *,all,*)
1999 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2000 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2001 esac
2003 # Add "good" languages from enable_stage1_languages to stage1_languages,
2004 # while "bad" languages go in missing_languages. Leave no duplicates.
2005 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2006 case $potential_languages in
2007 *,$i,*)
2008 case $stage1_languages in
2009 *,$i,*) ;;
2010 *) stage1_languages="$stage1_languages$i," ;;
2011 esac ;;
2012 *)
2013 case $missing_languages in
2014 *,$i,*) ;;
2015 *) missing_languages="$missing_languages$i," ;;
2016 esac ;;
2017 esac
2018 done])
2020 # Remove leading/trailing commas that were added for simplicity
2021 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2022 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2023 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2024 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2026 if test "x$missing_languages" != x; then
2027 AC_MSG_ERROR([
2028 The following requested languages could not be built: ${missing_languages}
2029 Supported languages are: ${potential_languages}])
2030 fi
2031 if test "x$new_enable_languages" != "x$enable_languages"; then
2032 echo The following languages will be built: ${new_enable_languages}
2033 enable_languages="$new_enable_languages"
2034 fi
2036 AC_SUBST(stage1_languages)
2037 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2038 fi
2040 # Handle --disable-<component> generically.
2041 for dir in $configdirs $build_configdirs $target_configdirs ; do
2042 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2043 varname=`echo $dirname | sed -e s/+/_/g`
2044 if eval test x\${enable_${varname}} "=" xno ; then
2045 noconfigdirs="$noconfigdirs $dir"
2046 fi
2047 done
2049 # Check for Boehm's garbage collector
2050 AC_ARG_ENABLE(objc-gc,
2051 [AS_HELP_STRING([--enable-objc-gc],
2052 [enable use of Boehm's garbage collector with the
2053 GNU Objective-C runtime])],
2054 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
2055 *,objc,*:*:yes:*target-boehm-gc*)
2056 AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
2057 ;;
2058 esac])
2060 # Make sure we only build Boehm's garbage collector if required.
2061 case ,${enable_languages},:${enable_objc_gc} in
2062 *,objc,*:yes)
2063 # Keep target-boehm-gc if requested for Objective-C.
2064 ;;
2065 *)
2066 # Otherwise remove target-boehm-gc depending on target-libjava.
2067 if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
2068 noconfigdirs="$noconfigdirs target-boehm-gc"
2069 fi
2070 ;;
2071 esac
2073 # Disable libcilkrts, libitm, libsanitizer, libvtv if we're not building C++
2074 case ,${enable_languages}, in
2075 *,c++,*)
2076 # Disable libcilkrts, libitm, libsanitizer if we're not building libstdc++
2077 case "${noconfigdirs}" in
2078 *target-libstdc++-v3*)
2079 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer"
2080 ;;
2081 *) ;;
2082 esac
2083 ;;
2084 *)
2085 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer target-libvtv"
2086 ;;
2087 esac
2089 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2090 # $build_configdirs and $target_configdirs.
2091 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2093 notsupp=""
2094 for dir in . $skipdirs $noconfigdirs ; do
2095 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2096 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2097 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2098 if test -r $srcdir/$dirname/configure ; then
2099 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2100 true
2101 else
2102 notsupp="$notsupp $dir"
2103 fi
2104 fi
2105 fi
2106 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2107 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2108 if test -r $srcdir/$dirname/configure ; then
2109 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2110 true
2111 else
2112 notsupp="$notsupp $dir"
2113 fi
2114 fi
2115 fi
2116 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2117 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2118 if test -r $srcdir/$dirname/configure ; then
2119 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2120 true
2121 else
2122 notsupp="$notsupp $dir"
2123 fi
2124 fi
2125 fi
2126 done
2128 # Quietly strip out all directories which aren't configurable in this tree.
2129 # This relies on all configurable subdirectories being autoconfiscated, which
2130 # is now the case.
2131 build_configdirs_all="$build_configdirs"
2132 build_configdirs=
2133 for i in ${build_configdirs_all} ; do
2134 j=`echo $i | sed -e s/build-//g`
2135 if test -f ${srcdir}/$j/configure ; then
2136 build_configdirs="${build_configdirs} $i"
2137 fi
2138 done
2140 configdirs_all="$configdirs"
2141 configdirs=
2142 for i in ${configdirs_all} ; do
2143 if test -f ${srcdir}/$i/configure ; then
2144 configdirs="${configdirs} $i"
2145 fi
2146 done
2148 target_configdirs_all="$target_configdirs"
2149 target_configdirs=
2150 for i in ${target_configdirs_all} ; do
2151 j=`echo $i | sed -e s/target-//g`
2152 if test -f ${srcdir}/$j/configure ; then
2153 target_configdirs="${target_configdirs} $i"
2154 fi
2155 done
2157 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2158 # so we have to add it after the preceding checks.
2159 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2160 then
2161 case " $configdirs " in
2162 *" libiberty "*)
2163 # If we can build libiberty, we can also build libiberty-linker-plugin.
2164 configdirs="$configdirs libiberty-linker-plugin"
2165 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2166 --with-libiberty=../libiberty-linker-plugin";;
2167 *)
2168 AC_MSG_ERROR([libiberty missing]);;
2169 esac
2170 fi
2172 # Produce a warning message for the subdirs we can't configure.
2173 # This isn't especially interesting in the Cygnus tree, but in the individual
2174 # FSF releases, it's important to let people know when their machine isn't
2175 # supported by the one or two programs in a package.
2177 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2178 # If $appdirs is non-empty, at least one of those directories must still
2179 # be configured, or we error out. (E.g., if the gas release supports a
2180 # specified target in some subdirs but not the gas subdir, we shouldn't
2181 # pretend that all is well.)
2182 if test -n "$appdirs" ; then
2183 for dir in $appdirs ; do
2184 if test -r $dir/Makefile.in ; then
2185 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2186 appdirs=""
2187 break
2188 fi
2189 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2190 appdirs=""
2191 break
2192 fi
2193 fi
2194 done
2195 if test -n "$appdirs" ; then
2196 echo "*** This configuration is not supported by this package." 1>&2
2197 exit 1
2198 fi
2199 fi
2200 # Okay, some application will build, or we don't care to check. Still
2201 # notify of subdirs not getting built.
2202 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2203 echo " ${notsupp}" 1>&2
2204 echo " (Any other directories should still work fine.)" 1>&2
2205 fi
2207 case "$host" in
2208 *msdosdjgpp*)
2209 enable_gdbtk=no ;;
2210 esac
2212 # To find our prefix, in gcc_cv_tool_prefix.
2213 ACX_TOOL_DIRS
2215 copy_dirs=
2217 AC_ARG_WITH([build-sysroot],
2218 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2219 [use sysroot as the system root during the build])],
2220 [if test x"$withval" != x ; then
2221 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2222 fi],
2223 [SYSROOT_CFLAGS_FOR_TARGET=])
2224 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2226 AC_ARG_WITH([debug-prefix-map],
2227 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2228 [map A to B, C to D ... in debug information])],
2229 [if test x"$withval" != x; then
2230 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2231 for debug_map in $withval; do
2232 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2233 done
2234 fi],
2235 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2236 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2238 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2239 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2240 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2241 # We want to ensure that TARGET libraries (which we know are built with
2242 # gcc) are built with "-O2 -g", so include those options when setting
2243 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2244 if test "x$CFLAGS_FOR_TARGET" = x; then
2245 CFLAGS_FOR_TARGET=$CFLAGS
2246 case " $CFLAGS " in
2247 *" -O2 "*) ;;
2248 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2249 esac
2250 case " $CFLAGS " in
2251 *" -g "* | *" -g3 "*) ;;
2252 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2253 esac
2254 fi
2255 AC_SUBST(CFLAGS_FOR_TARGET)
2257 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2258 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2259 case " $CXXFLAGS " in
2260 *" -O2 "*) ;;
2261 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2262 esac
2263 case " $CXXFLAGS " in
2264 *" -g "* | *" -g3 "*) ;;
2265 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2266 esac
2267 fi
2268 AC_SUBST(CXXFLAGS_FOR_TARGET)
2270 AC_SUBST(LDFLAGS_FOR_TARGET)
2272 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2273 # the named directory are copied to $(tooldir)/sys-include.
2274 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2275 if test x${is_cross_compiler} = xno ; then
2276 echo 1>&2 '***' --with-headers is only supported when cross compiling
2277 exit 1
2278 fi
2279 if test x"${with_headers}" != xyes ; then
2280 x=${gcc_cv_tool_prefix}
2281 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2282 fi
2283 fi
2285 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2286 # the name directories are copied to $(tooldir)/lib. Multiple directories
2287 # are permitted.
2288 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2289 if test x${is_cross_compiler} = xno ; then
2290 echo 1>&2 '***' --with-libs is only supported when cross compiling
2291 exit 1
2292 fi
2293 if test x"${with_libs}" != xyes ; then
2294 # Copy the libraries in reverse order, so that files in the first named
2295 # library override files in subsequent libraries.
2296 x=${gcc_cv_tool_prefix}
2297 for l in ${with_libs}; do
2298 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2299 done
2300 fi
2301 fi
2303 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2304 #
2305 # This is done by determining whether or not the appropriate directory
2306 # is available, and by checking whether or not specific configurations
2307 # have requested that this magic not happen.
2308 #
2309 # The command line options always override the explicit settings in
2310 # configure.in, and the settings in configure.in override this magic.
2311 #
2312 # If the default for a toolchain is to use GNU as and ld, and you don't
2313 # want to do that, then you should use the --without-gnu-as and
2314 # --without-gnu-ld options for the configure script. Similarly, if
2315 # the default is to use the included zlib and you don't want to do that,
2316 # you should use the --with-system-zlib option for the configure script.
2318 if test x${use_gnu_as} = x &&
2319 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2320 with_gnu_as=yes
2321 extra_host_args="$extra_host_args --with-gnu-as"
2322 fi
2324 if test x${use_gnu_ld} = x &&
2325 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2326 with_gnu_ld=yes
2327 extra_host_args="$extra_host_args --with-gnu-ld"
2328 fi
2330 if test x${use_included_zlib} = x &&
2331 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2332 :
2333 else
2334 with_system_zlib=yes
2335 extra_host_args="$extra_host_args --with-system-zlib"
2336 fi
2338 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2339 # can detect this case.
2341 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2342 with_newlib=yes
2343 extra_host_args="$extra_host_args --with-newlib"
2344 fi
2346 # Handle ${copy_dirs}
2347 set fnord ${copy_dirs}
2348 shift
2349 while test $# != 0 ; do
2350 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2351 :
2352 else
2353 echo Copying $1 to $2
2355 # Use the install script to create the directory and all required
2356 # parent directories.
2357 if test -d $2 ; then
2358 :
2359 else
2360 echo >config.temp
2361 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2362 fi
2364 # Copy the directory, assuming we have tar.
2365 # FIXME: Should we use B in the second tar? Not all systems support it.
2366 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2368 # It is the responsibility of the user to correctly adjust all
2369 # symlinks. If somebody can figure out how to handle them correctly
2370 # here, feel free to add the code.
2372 echo $1 > $2/COPIED
2373 fi
2374 shift; shift
2375 done
2377 # Determine a target-dependent exec_prefix that the installed
2378 # gcc will search in. Keep this list sorted by triplet, with
2379 # the *-*-osname triplets last.
2380 md_exec_prefix=
2381 case "${target}" in
2382 i[[34567]]86-pc-msdosdjgpp*)
2383 md_exec_prefix=/dev/env/DJDIR/bin
2384 ;;
2385 *-*-hpux* | \
2386 *-*-nto-qnx* | \
2387 *-*-solaris2*)
2388 md_exec_prefix=/usr/ccs/bin
2389 ;;
2390 esac
2392 extra_arflags_for_target=
2393 extra_nmflags_for_target=
2394 extra_ranlibflags_for_target=
2395 target_makefile_frag=/dev/null
2396 case "${target}" in
2397 spu-*-*)
2398 target_makefile_frag="config/mt-spu"
2399 ;;
2400 mips*-sde-elf* | mips*-mti-elf*)
2401 target_makefile_frag="config/mt-sde"
2402 ;;
2403 mipsisa*-*-elfoabi*)
2404 target_makefile_frag="config/mt-mips-elfoabi"
2405 ;;
2406 mips*-*-*linux* | mips*-*-gnu*)
2407 target_makefile_frag="config/mt-mips-gnu"
2408 ;;
2409 nios2-*-elf*)
2410 target_makefile_frag="config/mt-nios2-elf"
2411 ;;
2412 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2413 target_makefile_frag="config/mt-gnu"
2414 ;;
2415 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2416 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2417 # commands to handle both 32-bit and 64-bit objects. These flags are
2418 # harmless if we're using GNU nm or ar.
2419 extra_arflags_for_target=" -X32_64"
2420 extra_nmflags_for_target=" -B -X32_64"
2421 ;;
2422 esac
2424 alphaieee_frag=/dev/null
2425 case $target in
2426 alpha*-*-*)
2427 # This just makes sure to use the -mieee option to build target libs.
2428 # This should probably be set individually by each library.
2429 alphaieee_frag="config/mt-alphaieee"
2430 ;;
2431 esac
2433 # If --enable-target-optspace always use -Os instead of -O2 to build
2434 # the target libraries, similarly if it is not specified, use -Os
2435 # on selected platforms.
2436 ospace_frag=/dev/null
2437 case "${enable_target_optspace}:${target}" in
2438 yes:*)
2439 ospace_frag="config/mt-ospace"
2440 ;;
2441 :d30v-*)
2442 ospace_frag="config/mt-d30v"
2443 ;;
2444 :m32r-* | :d10v-* | :fr30-*)
2445 ospace_frag="config/mt-ospace"
2446 ;;
2447 no:* | :*)
2448 ;;
2449 *)
2450 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2451 ;;
2452 esac
2454 # Some systems (e.g., one of the i386-aix systems the gas testers are
2455 # using) don't handle "\$" correctly, so don't use it here.
2456 tooldir='${exec_prefix}'/${target_noncanonical}
2457 build_tooldir=${tooldir}
2459 # Create a .gdbinit file which runs the one in srcdir
2460 # and tells GDB to look there for source files.
2462 if test -r ${srcdir}/.gdbinit ; then
2463 case ${srcdir} in
2464 .) ;;
2465 *) cat > ./.gdbinit <<EOF
2466 # ${NO_EDIT}
2467 dir ${srcdir}
2468 dir .
2469 source ${srcdir}/.gdbinit
2470 EOF
2471 ;;
2472 esac
2473 fi
2475 # Make sure that the compiler is able to generate an executable. If it
2476 # can't, we are probably in trouble. We don't care whether we can run the
2477 # executable--we might be using a cross compiler--we only care whether it
2478 # can be created. At this point the main configure script has set CC.
2479 we_are_ok=no
2480 echo "int main () { return 0; }" > conftest.c
2481 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2482 if test $? = 0 ; then
2483 if test -s conftest || test -s conftest.exe ; then
2484 we_are_ok=yes
2485 fi
2486 fi
2487 case $we_are_ok in
2488 no)
2489 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2490 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2491 rm -f conftest*
2492 exit 1
2493 ;;
2494 esac
2495 rm -f conftest*
2497 # Decide which environment variable is used to find dynamic libraries.
2498 case "${host}" in
2499 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2500 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2501 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2502 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2503 esac
2505 # On systems where the dynamic library environment variable is PATH,
2506 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2507 # built executables to PATH.
2508 if test "$RPATH_ENVVAR" = PATH; then
2509 GCC_SHLIB_SUBDIR=/shlib
2510 else
2511 GCC_SHLIB_SUBDIR=
2512 fi
2514 # Adjust the toplevel makefile according to whether bootstrap was selected.
2515 case $enable_bootstrap in
2516 yes)
2517 bootstrap_suffix=bootstrap
2518 BUILD_CONFIG=bootstrap-debug
2519 ;;
2520 no)
2521 bootstrap_suffix=no-bootstrap
2522 BUILD_CONFIG=
2523 ;;
2524 esac
2526 AC_MSG_CHECKING(for default BUILD_CONFIG)
2528 AC_ARG_WITH([build-config],
2529 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2530 [use config/NAME.mk build configuration])],
2531 [case $with_build_config in
2532 yes) with_build_config= ;;
2533 no) with_build_config= BUILD_CONFIG= ;;
2534 esac])
2536 if test "x${with_build_config}" != x; then
2537 BUILD_CONFIG=$with_build_config
2538 else
2539 case $BUILD_CONFIG in
2540 bootstrap-debug)
2541 if echo "int f (void) { return 0; }" > conftest.c &&
2542 ${CC} -c conftest.c &&
2543 mv conftest.o conftest.o.g0 &&
2544 ${CC} -c -g conftest.c &&
2545 mv conftest.o conftest.o.g &&
2546 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2547 :
2548 else
2549 BUILD_CONFIG=
2550 fi
2551 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2552 ;;
2553 esac
2554 fi
2555 AC_MSG_RESULT($BUILD_CONFIG)
2556 AC_SUBST(BUILD_CONFIG)
2558 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2559 AC_MSG_CHECKING([for --enable-vtable-verify])
2560 AC_ARG_ENABLE(vtable-verify,
2561 [ --enable-vtable-verify Enable vtable verification feature ],
2562 [case "$enableval" in
2563 yes) enable_vtable_verify=yes ;;
2564 no) enable_vtable_verify=no ;;
2565 *) enable_vtable_verify=no;;
2566 esac],
2567 [enable_vtable_verify=no])
2568 AC_MSG_RESULT($enable_vtable_verify)
2570 # Record target_configdirs and the configure arguments for target and
2571 # build configuration in Makefile.
2572 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2573 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2574 bootstrap_fixincludes=no
2576 # If we are building libgomp, bootstrap it.
2577 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2578 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2579 fi
2581 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2582 # or bootstrap-ubsan, bootstrap it.
2583 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2584 case "$BUILD_CONFIG" in
2585 *bootstrap-asan* | *bootstrap-ubsan* )
2586 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2587 bootstrap_fixincludes=yes
2588 ;;
2589 esac
2590 fi
2592 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2593 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2594 test "$enable_vtable_verify" != no; then
2595 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2596 fi
2598 # Determine whether gdb needs tk/tcl or not.
2599 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2600 # and in that case we want gdb to be built without tk. Ugh!
2601 # In fact I believe gdb is the *only* package directly dependent on tk,
2602 # so we should be able to put the 'maybe's in unconditionally and
2603 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2604 # 100% sure that that's safe though.
2606 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2607 case "$enable_gdbtk" in
2608 no)
2609 GDB_TK="" ;;
2610 yes)
2611 GDB_TK="${gdb_tk}" ;;
2612 *)
2613 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2614 # distro. Eventually someone will fix this and move Insight, nee
2615 # gdbtk to a separate directory.
2616 if test -d ${srcdir}/gdb/gdbtk ; then
2617 GDB_TK="${gdb_tk}"
2618 else
2619 GDB_TK=""
2620 fi
2621 ;;
2622 esac
2623 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2624 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2626 # Strip out unwanted targets.
2628 # While at that, we remove Makefiles if we were started for recursive
2629 # configuration, so that the top-level Makefile reconfigures them,
2630 # like we used to do when configure itself was recursive.
2632 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2633 # but now we're fixing up the Makefile ourselves with the additional
2634 # commands passed to AC_CONFIG_FILES. Use separate variables
2635 # extrasub-{build,host,target} not because there is any reason to split
2636 # the substitutions up that way, but only to remain below the limit of
2637 # 99 commands in a script, for HP-UX sed.
2638 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2640 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2641 yes:yes:*\ gold\ *:*,c++,*) ;;
2642 yes:yes:*\ gold\ *:*)
2643 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2644 ;;
2645 esac
2647 extrasub_build=
2648 for module in ${build_configdirs} ; do
2649 if test -z "${no_recursion}" \
2650 && test -f ${build_subdir}/${module}/Makefile; then
2651 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2652 rm -f ${build_subdir}/${module}/Makefile
2653 fi
2654 extrasub_build="$extrasub_build
2655 /^@if build-$module\$/d
2656 /^@endif build-$module\$/d
2657 /^@if build-$module-$bootstrap_suffix\$/d
2658 /^@endif build-$module-$bootstrap_suffix\$/d"
2659 done
2660 extrasub_host=
2661 for module in ${configdirs} ; do
2662 if test -z "${no_recursion}"; then
2663 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2664 if test -f ${file}; then
2665 echo 1>&2 "*** removing ${file} to force reconfigure"
2666 rm -f ${file}
2667 fi
2668 done
2669 fi
2670 case ${module},${bootstrap_fixincludes} in
2671 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2672 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2673 esac
2674 extrasub_host="$extrasub_host
2675 /^@if $module\$/d
2676 /^@endif $module\$/d
2677 /^@if $module-$host_bootstrap_suffix\$/d
2678 /^@endif $module-$host_bootstrap_suffix\$/d"
2679 done
2680 extrasub_target=
2681 for module in ${target_configdirs} ; do
2682 if test -z "${no_recursion}" \
2683 && test -f ${target_subdir}/${module}/Makefile; then
2684 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2685 rm -f ${target_subdir}/${module}/Makefile
2686 fi
2688 # We only bootstrap target libraries listed in bootstrap_target_libs.
2689 case $bootstrap_target_libs in
2690 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2691 *) target_bootstrap_suffix=no-bootstrap ;;
2692 esac
2694 extrasub_target="$extrasub_target
2695 /^@if target-$module\$/d
2696 /^@endif target-$module\$/d
2697 /^@if target-$module-$target_bootstrap_suffix\$/d
2698 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2699 done
2701 # Do the final fixup along with target modules.
2702 extrasub_target="$extrasub_target
2703 /^@if /,/^@endif /d"
2705 # Create the serialization dependencies. This uses a temporary file.
2707 AC_ARG_ENABLE([serial-configure],
2708 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2709 [force sequential configuration of
2710 sub-packages for the host, target or build
2711 machine, or all sub-packages])])
2713 case ${enable_serial_configure} in
2714 yes)
2715 enable_serial_build_configure=yes
2716 enable_serial_host_configure=yes
2717 enable_serial_target_configure=yes
2718 ;;
2719 esac
2721 # These force 'configure's to be done one at a time, to avoid problems
2722 # with contention over a shared config.cache.
2723 rm -f serdep.tmp
2724 echo '# serdep.tmp' > serdep.tmp
2725 olditem=
2726 test "x${enable_serial_build_configure}" = xyes &&
2727 for item in ${build_configdirs} ; do
2728 case ${olditem} in
2729 "") ;;
2730 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2731 esac
2732 olditem=${item}
2733 done
2734 olditem=
2735 test "x${enable_serial_host_configure}" = xyes &&
2736 for item in ${configdirs} ; do
2737 case ${olditem} in
2738 "") ;;
2739 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2740 esac
2741 olditem=${item}
2742 done
2743 olditem=
2744 test "x${enable_serial_target_configure}" = xyes &&
2745 for item in ${target_configdirs} ; do
2746 case ${olditem} in
2747 "") ;;
2748 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2749 esac
2750 olditem=${item}
2751 done
2752 serialization_dependencies=serdep.tmp
2753 AC_SUBST_FILE(serialization_dependencies)
2755 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2756 # target, nonopt, and variable assignments. These are the ones we
2757 # might not want to pass down to subconfigures. The exception being
2758 # --cache-file=/dev/null, which is used to turn off the use of cache
2759 # files altogether, and which should be passed on to subconfigures.
2760 # Also strip program-prefix, program-suffix, and program-transform-name,
2761 # so that we can pass down a consistent program-transform-name.
2762 baseargs=
2763 tbaseargs=
2764 keep_next=no
2765 skip_next=no
2766 eval "set -- $ac_configure_args"
2767 for ac_arg
2768 do
2769 if test X"$skip_next" = X"yes"; then
2770 skip_next=no
2771 continue
2772 fi
2773 if test X"$keep_next" = X"yes"; then
2774 case $ac_arg in
2775 *\'*)
2776 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2777 esac
2778 baseargs="$baseargs '$ac_arg'"
2779 tbaseargs="$tbaseargs '$ac_arg'"
2780 keep_next=no
2781 continue
2782 fi
2784 # Handle separated arguments. Based on the logic generated by
2785 # autoconf 2.59.
2786 case $ac_arg in
2787 *=* | --config-cache | -C | -disable-* | --disable-* \
2788 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2789 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2790 | -with-* | --with-* | -without-* | --without-* | --x)
2791 separate_arg=no
2792 ;;
2793 -*)
2794 separate_arg=yes
2795 ;;
2796 *)
2797 separate_arg=no
2798 ;;
2799 esac
2801 skip_targ=no
2802 case $ac_arg in
2803 changequote(,)
2804 --with-* | --without-*)
2805 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2807 case $libopt in
2808 *[-_]include)
2809 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2810 ;;
2811 *[-_]lib)
2812 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2813 ;;
2814 *)
2815 lib=$libopt
2816 ;;
2817 esac
2818 changequote([,])
2820 case $lib in
2821 mpc | mpfr | gmp | isl | cloog)
2822 # If we're processing --with-$lib, --with-$lib-include or
2823 # --with-$lib-lib, for one of the libs above, and target is
2824 # different from host, don't pass the current argument to any
2825 # target library's configure.
2826 if test x$is_cross_compiler = xyes; then
2827 skip_targ=yes
2828 fi
2829 ;;
2830 esac
2831 ;;
2832 esac
2834 case "$ac_arg" in
2835 --cache-file=/dev/null | \
2836 -cache-file=/dev/null )
2837 # Handled here to avoid the test to skip args below.
2838 baseargs="$baseargs '$ac_arg'"
2839 tbaseargs="$tbaseargs '$ac_arg'"
2840 # Assert: $separate_arg should always be no.
2841 keep_next=$separate_arg
2842 ;;
2843 --no*)
2844 continue
2845 ;;
2846 --c* | \
2847 --sr* | \
2848 --ho* | \
2849 --bu* | \
2850 --t* | \
2851 --program-* | \
2852 -cache_file* | \
2853 -srcdir* | \
2854 -host* | \
2855 -build* | \
2856 -target* | \
2857 -program-prefix* | \
2858 -program-suffix* | \
2859 -program-transform-name* )
2860 skip_next=$separate_arg
2861 continue
2862 ;;
2863 -*)
2864 # An option. Add it.
2865 case $ac_arg in
2866 *\'*)
2867 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2868 esac
2869 baseargs="$baseargs '$ac_arg'"
2870 if test X"$skip_targ" = Xno; then
2871 tbaseargs="$tbaseargs '$ac_arg'"
2872 fi
2873 keep_next=$separate_arg
2874 ;;
2875 *)
2876 # Either a variable assignment, or a nonopt (triplet). Don't
2877 # pass it down; let the Makefile handle this.
2878 continue
2879 ;;
2880 esac
2881 done
2882 # Remove the initial space we just introduced and, as these will be
2883 # expanded by make, quote '$'.
2884 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2886 # Add in --program-transform-name, after --program-prefix and
2887 # --program-suffix have been applied to it. Autoconf has already
2888 # doubled dollar signs and backslashes in program_transform_name; we want
2889 # the backslashes un-doubled, and then the entire thing wrapped in single
2890 # quotes, because this will be expanded first by make and then by the shell.
2891 # Also, because we want to override the logic in subdir configure scripts to
2892 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2893 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2894 ${program_transform_name}
2895 EOF_SED
2896 gcc_transform_name=`cat conftestsed.out`
2897 rm -f conftestsed.out
2898 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2899 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
2900 if test "$silent" = yes; then
2901 baseargs="$baseargs --silent"
2902 tbaseargs="$tbaseargs --silent"
2903 fi
2904 baseargs="$baseargs --disable-option-checking"
2905 tbaseargs="$tbaseargs --disable-option-checking"
2907 # Record and document user additions to sub configure arguments.
2908 AC_ARG_VAR([build_configargs],
2909 [additional configure arguments for build directories])
2910 AC_ARG_VAR([host_configargs],
2911 [additional configure arguments for host directories])
2912 AC_ARG_VAR([target_configargs],
2913 [additional configure arguments for target directories])
2915 # For the build-side libraries, we just need to pretend we're native,
2916 # and not use the same cache file. Multilibs are neither needed nor
2917 # desired.
2918 build_configargs="$build_configargs --cache-file=../config.cache ${baseargs}"
2920 # For host modules, accept cache file option, or specification as blank.
2921 case "${cache_file}" in
2922 "") # empty
2923 cache_file_option="" ;;
2924 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2925 cache_file_option="--cache-file=${cache_file}" ;;
2926 *) # relative path
2927 cache_file_option="--cache-file=../${cache_file}" ;;
2928 esac
2930 # Host dirs don't like to share a cache file either, horribly enough.
2931 # This seems to be due to autoconf 2.5x stupidity.
2932 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
2934 target_configargs="$target_configargs ${tbaseargs}"
2936 # Passing a --with-cross-host argument lets the target libraries know
2937 # whether they are being built with a cross-compiler or being built
2938 # native. However, it would be better to use other mechanisms to make the
2939 # sorts of decisions they want to make on this basis. Please consider
2940 # this option to be deprecated. FIXME.
2941 if test x${is_cross_compiler} = xyes ; then
2942 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
2943 fi
2945 # Special user-friendly check for native x86_64-linux build, if
2946 # multilib is not explicitly enabled.
2947 case "$target:$have_compiler:$host:$target:$enable_multilib" in
2948 x86_64-*linux*:yes:$build:$build:)
2949 # Make sure we have a developement environment that handles 32-bit
2950 dev64=no
2951 echo "int main () { return 0; }" > conftest.c
2952 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2953 if test $? = 0 ; then
2954 if test -s conftest || test -s conftest.exe ; then
2955 dev64=yes
2956 fi
2957 fi
2958 rm -f conftest*
2959 if test x${dev64} != xyes ; then
2960 AC_MSG_ERROR([I suspect your system does not have 32-bit developement libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib.])
2961 fi
2962 ;;
2963 esac
2965 # Default to --enable-multilib.
2966 if test x${enable_multilib} = x ; then
2967 target_configargs="--enable-multilib ${target_configargs}"
2968 fi
2970 # Pass --with-newlib if appropriate. Note that target_configdirs has
2971 # changed from the earlier setting of with_newlib.
2972 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2973 target_configargs="--with-newlib ${target_configargs}"
2974 fi
2976 # Different target subdirs use different values of certain variables
2977 # (notably CXX). Worse, multilibs use *lots* of different values.
2978 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2979 # it doesn't automatically accept command-line overrides of them.
2980 # This means it's not safe for target subdirs to share a cache file,
2981 # which is disgusting, but there you have it. Hopefully this can be
2982 # fixed in future. It's still worthwhile to use a cache file for each
2983 # directory. I think.
2985 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2986 # We need to pass --target, as newer autoconf's requires consistency
2987 # for target_alias and gcc doesn't manage it consistently.
2988 target_configargs="--cache-file=./config.cache ${target_configargs}"
2990 FLAGS_FOR_TARGET=
2991 case " $target_configdirs " in
2992 *" newlib "*)
2993 case " $target_configargs " in
2994 *" --with-newlib "*)
2995 case "$target" in
2996 *-cygwin*)
2997 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
2998 ;;
2999 esac
3001 # If we're not building GCC, don't discard standard headers.
3002 if test -d ${srcdir}/gcc; then
3003 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3005 if test "${build}" != "${host}"; then
3006 # On Canadian crosses, CC_FOR_TARGET will have already been set
3007 # by `configure', so we won't have an opportunity to add -Bgcc/
3008 # to it. This is right: we don't want to search that directory
3009 # for binaries, but we want the header files in there, so add
3010 # them explicitly.
3011 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3013 # Someone might think of using the pre-installed headers on
3014 # Canadian crosses, in case the installed compiler is not fully
3015 # compatible with the compiler being built. In this case, it
3016 # would be better to flag an error than risking having
3017 # incompatible object files being constructed. We can't
3018 # guarantee that an error will be flagged, but let's hope the
3019 # compiler will do it, when presented with incompatible header
3020 # files.
3021 fi
3022 fi
3024 case "${target}-${is_cross_compiler}" in
3025 i[[3456789]]86-*-linux*-no)
3026 # Here host == target, so we don't need to build gcc,
3027 # so we don't want to discard standard headers.
3028 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3029 ;;
3030 *)
3031 # If we're building newlib, use its generic headers last, but search
3032 # for any libc-related directories first (so make it the last -B
3033 # switch).
3034 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3036 # If we're building libgloss, find the startup file, simulator library
3037 # and linker script.
3038 case " $target_configdirs " in
3039 *" libgloss "*)
3040 # Look for startup file, simulator library and maybe linker script.
3041 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3042 # Look for libnosys.a in case the target needs it.
3043 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3044 # Most targets have the linker script in the source directory.
3045 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3046 ;;
3047 esac
3048 ;;
3049 esac
3050 ;;
3051 esac
3052 ;;
3053 esac
3055 case "$target" in
3056 x86_64-*mingw* | *-w64-mingw*)
3057 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3058 # however, use a symlink named 'mingw' in ${prefix} .
3059 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3060 ;;
3061 *-mingw*)
3062 # MinGW can't be handled as Cygwin above since it does not use newlib.
3063 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3064 ;;
3065 esac
3067 # Allow the user to override the flags for
3068 # our build compiler if desired.
3069 if test x"${build}" = x"${host}" ; then
3070 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3071 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3072 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3073 fi
3075 # On Canadian crosses, we'll be searching the right directories for
3076 # the previously-installed cross compiler, so don't bother to add
3077 # flags for directories within the install tree of the compiler
3078 # being built; programs in there won't even run.
3079 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3080 # Search for pre-installed headers if nothing else fits.
3081 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3082 fi
3084 if test "x${use_gnu_ld}" = x &&
3085 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3086 # Arrange for us to find uninstalled linker scripts.
3087 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3088 fi
3090 # Search for other target-specific linker scripts and such.
3091 case "${target}" in
3092 mep*)
3093 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3094 ;;
3095 esac
3097 # Makefile fragments.
3098 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3099 do
3100 eval fragval=\$$frag
3101 if test $fragval != /dev/null; then
3102 eval $frag=${srcdir}/$fragval
3103 fi
3104 done
3105 AC_SUBST_FILE(host_makefile_frag)
3106 AC_SUBST_FILE(target_makefile_frag)
3107 AC_SUBST_FILE(alphaieee_frag)
3108 AC_SUBST_FILE(ospace_frag)
3110 # Miscellanea: directories, flags, etc.
3111 AC_SUBST(RPATH_ENVVAR)
3112 AC_SUBST(GCC_SHLIB_SUBDIR)
3113 AC_SUBST(tooldir)
3114 AC_SUBST(build_tooldir)
3115 AC_SUBST(CONFIGURE_GDB_TK)
3116 AC_SUBST(GDB_TK)
3117 AC_SUBST(INSTALL_GDB_TK)
3119 # Build module lists & subconfigure args.
3120 AC_SUBST(build_configargs)
3121 AC_SUBST(build_configdirs)
3123 # Host module lists & subconfigure args.
3124 AC_SUBST(host_configargs)
3125 AC_SUBST(configdirs)
3126 AC_SUBST(target_configdirs)
3128 # Target module lists & subconfigure args.
3129 AC_SUBST(target_configargs)
3132 # Build tools.
3133 AC_SUBST(AR_FOR_BUILD)
3134 AC_SUBST(AS_FOR_BUILD)
3135 AC_SUBST(CC_FOR_BUILD)
3136 AC_SUBST(CFLAGS_FOR_BUILD)
3137 AC_SUBST(CXXFLAGS_FOR_BUILD)
3138 AC_SUBST(CXX_FOR_BUILD)
3139 AC_SUBST(DLLTOOL_FOR_BUILD)
3140 AC_SUBST(GCJ_FOR_BUILD)
3141 AC_SUBST(GFORTRAN_FOR_BUILD)
3142 AC_SUBST(GOC_FOR_BUILD)
3143 AC_SUBST(LDFLAGS_FOR_BUILD)
3144 AC_SUBST(LD_FOR_BUILD)
3145 AC_SUBST(NM_FOR_BUILD)
3146 AC_SUBST(RANLIB_FOR_BUILD)
3147 AC_SUBST(WINDMC_FOR_BUILD)
3148 AC_SUBST(WINDRES_FOR_BUILD)
3150 # Generate default definitions for YACC, M4, LEX and other programs that run
3151 # on the build machine. These are used if the Makefile can't locate these
3152 # programs in objdir.
3153 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3155 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3156 case " $build_configdirs " in
3157 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3158 esac
3160 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3161 case " $build_configdirs " in
3162 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3163 esac
3165 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3166 case " $build_configdirs " in
3167 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3168 esac
3170 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3171 case " $build_configdirs " in
3172 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3173 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3174 esac
3176 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3177 case " $build_configdirs " in
3178 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3179 esac
3181 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3182 case " $build_configdirs " in
3183 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3184 *)
3185 changequote(,)
3186 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3187 # higher, else we use the "missing" dummy.
3188 if ${MAKEINFO} --version \
3189 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3190 :
3191 else
3192 MAKEINFO="$MISSING makeinfo"
3193 fi
3194 ;;
3195 changequote([,])
3196 esac
3198 # FIXME: expect and dejagnu may become build tools?
3200 AC_CHECK_PROGS(EXPECT, expect, expect)
3201 case " $configdirs " in
3202 *" expect "*)
3203 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3204 ;;
3205 esac
3207 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3208 case " $configdirs " in
3209 *" dejagnu "*)
3210 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3211 ;;
3212 esac
3215 # Host tools.
3216 NCN_STRICT_CHECK_TOOLS(AR, ar)
3217 NCN_STRICT_CHECK_TOOLS(AS, as)
3218 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3219 NCN_STRICT_CHECK_TOOLS(LD, ld)
3220 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3221 NCN_STRICT_CHECK_TOOLS(NM, nm)
3222 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3223 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3224 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3225 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3226 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3227 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3228 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3229 AC_SUBST(CC)
3230 AC_SUBST(CXX)
3231 AC_SUBST(CFLAGS)
3232 AC_SUBST(CXXFLAGS)
3234 # Target tools.
3235 AC_ARG_WITH([build-time-tools],
3236 [AS_HELP_STRING([--with-build-time-tools=PATH],
3237 [use given path to find target tools during the build])],
3238 [case x"$withval" in
3239 x/*) ;;
3240 *)
3241 with_build_time_tools=
3242 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3243 ;;
3244 esac],
3245 [with_build_time_tools=])
3247 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3248 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3249 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3250 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3251 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3252 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3254 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3255 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3256 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3257 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3258 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3259 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3260 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3261 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3262 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3263 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3264 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3265 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3267 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3269 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3270 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3271 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3272 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3273 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3274 [gcc/xg++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3275 c++)
3276 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3277 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3278 c++)
3279 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3280 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3281 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
3282 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
3283 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3284 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3285 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3286 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3287 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3288 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3289 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3290 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3291 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3292 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3293 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3294 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3295 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3297 AC_SUBST(FLAGS_FOR_TARGET)
3298 AC_SUBST(RAW_CXX_FOR_TARGET)
3300 # Certain tools may need extra flags.
3301 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3302 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3303 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3305 # When building target libraries, except in a Canadian cross, we use
3306 # the same toolchain as the compiler we just built.
3307 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3308 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3309 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3310 if test $host = $build; then
3311 case " $configdirs " in
3312 *" gcc "*)
3313 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3314 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3315 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3316 ;;
3317 esac
3318 fi
3320 AC_SUBST(COMPILER_AS_FOR_TARGET)
3321 AC_SUBST(COMPILER_LD_FOR_TARGET)
3322 AC_SUBST(COMPILER_NM_FOR_TARGET)
3324 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3325 AC_ARG_ENABLE(maintainer-mode,
3326 [AS_HELP_STRING([--enable-maintainer-mode],
3327 [enable make rules and dependencies not useful
3328 (and sometimes confusing) to the casual installer])],
3329 USE_MAINTAINER_MODE=$enableval,
3330 USE_MAINTAINER_MODE=no)
3331 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3332 AC_SUBST(MAINTAINER_MODE_TRUE)
3333 AC_SUBST(MAINTAINER_MODE_FALSE)
3334 if test "$USE_MAINTAINER_MODE" = yes; then
3335 MAINTAINER_MODE_TRUE=
3336 MAINTAINER_MODE_FALSE='#'
3337 else
3338 MAINTAINER_MODE_TRUE='#'
3339 MAINTAINER_MODE_FALSE=
3340 fi
3341 MAINT=$MAINTAINER_MODE_TRUE
3342 AC_SUBST(MAINT)dnl
3344 # ---------------------
3345 # GCC bootstrap support
3346 # ---------------------
3348 # Stage specific cflags for build.
3349 stage1_cflags="-g"
3350 case $build in
3351 vax-*-*)
3352 case ${GCC} in
3353 yes) stage1_cflags="-g -Wa,-J" ;;
3354 *) stage1_cflags="-g -J" ;;
3355 esac ;;
3356 esac
3358 AC_SUBST(stage1_cflags)
3360 # Enable --enable-checking in stage1 of the compiler.
3361 AC_ARG_ENABLE(stage1-checking,
3362 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3363 [choose additional checking for stage1 of the compiler])],
3364 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3365 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3366 stage1_checking=--enable-checking=yes,types
3367 else
3368 stage1_checking=--enable-checking=$enable_checking,types
3369 fi])
3370 AC_SUBST(stage1_checking)
3372 # Enable -Werror in bootstrap stage2 and later.
3373 AC_ARG_ENABLE(werror,
3374 [AS_HELP_STRING([--enable-werror],
3375 [enable -Werror in bootstrap stage2 and later])], [],
3376 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3377 enable_werror=yes
3378 else
3379 enable_werror=no
3380 fi])
3381 case ${enable_werror} in
3382 yes) stage2_werror_flag="--enable-werror-always" ;;
3383 *) stage2_werror_flag="" ;;
3384 esac
3385 AC_SUBST(stage2_werror_flag)
3387 # Enable --enable-host-shared.
3388 AC_ARG_ENABLE(host-shared,
3389 [AS_HELP_STRING([--enable-host-shared],
3390 [build host code as shared libraries])],
3391 [host_shared=$enableval], [host_shared=no])
3392 AC_SUBST(host_shared)
3394 # Specify what files to not compare during bootstrap.
3396 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3397 case "$target" in
3398 hppa*64*-*-hpux*) ;;
3399 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
3400 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3401 esac
3402 AC_SUBST(compare_exclusions)
3404 AC_CONFIG_FILES([Makefile],
3405 [sed "$extrasub_build" Makefile |
3406 sed "$extrasub_host" |
3407 sed "$extrasub_target" > mf$$
3408 mv -f mf$$ Makefile],
3409 [extrasub_build="$extrasub_build"
3410 extrasub_host="$extrasub_host"
3411 extrasub_target="$extrasub_target"])
3412 AC_OUTPUT