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Fix libgfortran build failure, stX insns don't allow post_inc addr w/ reg inc.
[thirdparty/gcc.git] / configure.in
1 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
2 # 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
3 #
4 # This file is free software; you can redistribute it and/or modify it
5 # under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; either version 2 of the License, or
7 # (at your option) any later version.
8 #
9 # This program is distributed in the hope that it will be useful, but
10 # WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # General Public License for more details.
13 #
14 # You should have received a copy of the GNU General Public License
15 # along with this program; if not, write to the Free Software
16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17
18 ##############################################################################
19 ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
20
21 sinclude(config/acx.m4)
22
23 AC_INIT(move-if-change)
24 AC_PREREQ(2.13)
25 AC_CANONICAL_SYSTEM
26 AC_ARG_PROGRAM
27
28 # Get 'install' or 'install-sh' and its variants.
29 AC_PROG_INSTALL
30 ACX_PROG_LN
31 AC_PROG_LN_S
32
33 ### we might need to use some other shell than /bin/sh for running subshells
34 ### If we are on Windows, search for the shell. This will permit people
35 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
36 ### without also having to set CONFIG_SHELL. This code will work when
37 ### using bash, which sets OSTYPE.
38 case "${OSTYPE}" in
39 *win32*)
40 if test x${CONFIG_SHELL} = x ; then
41 if test ! -f /bin/sh ; then
42 if test x${SHELL} != x && test -f ${SHELL} ; then
43 CONFIG_SHELL=${SHELL}
44 export CONFIG_SHELL
45 else
46 for prog in sh sh.exe bash bash.exe; do
47 IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:"
48 for dir in $PATH; do
49 test -z "$dir" && dir=.
50 if test -f $dir/$prog; then
51 CONFIG_SHELL=$dir/$prog
52 export CONFIG_SHELL
53 break
54 fi
55 done
56 IFS="$save_ifs"
57 test -n "${CONFIG_SHELL}" && break
58 done
59 fi
60 fi
61 fi
62 ;;
63 esac
64
65 config_shell=${CONFIG_SHELL-/bin/sh}
66
67 progname=$0
68 # if PWD already has a value, it is probably wrong.
69 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
70
71 # Export original configure arguments for use by sub-configures. These
72 # will be expanded by make, so quote '$'.
73 tmp="$progname $@"
74 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
75 $tmp
76 EOF_SED
77 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
78 rm -f conftestsed.out
79 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
80
81 moveifchange=${srcdir}/move-if-change
82
83 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
84
85 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
86 # a relative path.
87 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
88 INSTALL="${srcpwd}/install-sh -c"
89 fi
90
91 # Set srcdir to "." if that's what it is.
92 # This is important for multilib support.
93 pwd=`${PWDCMD-pwd}`
94 if test "${pwd}" = "${srcpwd}" ; then
95 srcdir=.
96 fi
97
98 topsrcdir=$srcpwd
99
100 extra_host_args=
101
102 ### To add a new directory to the tree, first choose whether it is a target
103 ### or a host dependent tool. Then put it into the appropriate list
104 ### (library or tools, host or target), doing a dependency sort.
105
106 # Subdirs will be configured in the order listed in build_configdirs,
107 # configdirs, or target_configdirs; see the serialization section below.
108
109 # Dependency sorting is only needed when *configuration* must be done in
110 # a particular order. In all cases a dependency should be specified in
111 # the Makefile, whether or not it's implicitly specified here.
112
113 # Double entries in build_configdirs, configdirs, or target_configdirs may
114 # cause circular dependencies and break everything horribly.
115
116 # these library is used by various programs built for the build
117 # environment
118 #
119 build_libs="build-libiberty"
120
121 # these tools are built for the build environment
122 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
123
124 # these libraries are used by various programs built for the host environment
125 #
126 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp"
127
128 # these tools are built for the host environment
129 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
130 # know that we are building the simulator.
131 # binutils, gas and ld appear in that order because it makes sense to run
132 # "make check" in that particular order.
133 host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils gettext zip fastjar gnattools"
134
135 # libgcj represents the runtime libraries only used by gcj.
136 libgcj="target-libffi \
137 target-boehm-gc \
138 target-zlib \
139 target-qthreads \
140 target-libjava"
141
142 # these libraries are built for the target environment, and are built after
143 # the host libraries and the host tools (which may be a cross compiler)
144 #
145 target_libraries="target-libiberty \
146 target-libgloss \
147 target-newlib \
148 target-libstdc++-v3 \
149 target-libmudflap \
150 target-libssp \
151 target-libgfortran \
152 ${libgcj} \
153 target-libobjc \
154 target-libada"
155
156 # these tools are built using the target libraries, and are intended to
157 # run only in the target environment
158 #
159 # note: any program that *uses* libraries that are in the "target_libraries"
160 # list belongs in this list. those programs are also very likely
161 # candidates for the "native_only" list which follows
162 #
163 target_tools="target-examples target-groff target-gperf target-rda"
164
165 ################################################################################
166
167 ## All tools belong in one of the four categories, and are assigned above
168 ## We assign ${configdirs} this way to remove all embedded newlines. This
169 ## is important because configure will choke if they ever get through.
170 ## ${configdirs} is directories we build using the host tools.
171 ## ${target_configdirs} is directories we build using the target tools.
172 configdirs=`echo ${host_libs} ${host_tools}`
173 target_configdirs=`echo ${target_libraries} ${target_tools}`
174 build_configdirs=`echo ${build_libs} ${build_tools}`
175
176 ################################################################################
177
178 srcname="gnu development package"
179
180 # This gets set non-empty for some net releases of packages.
181 appdirs=""
182
183 # Define is_cross_compiler to save on calls to 'test'.
184 is_cross_compiler=
185 if test x"${host}" = x"${target}" ; then
186 is_cross_compiler=no
187 else
188 is_cross_compiler=yes
189 fi
190
191 # Find the build and target subdir names.
192 GCC_TOPLEV_SUBDIRS
193
194 # Skipdirs are removed silently.
195 skipdirs=
196 # Noconfigdirs are removed loudly.
197 noconfigdirs=""
198
199 use_gnu_ld=
200 # Make sure we don't let GNU ld be added if we didn't want it.
201 if test x$with_gnu_ld = xno ; then
202 use_gnu_ld=no
203 noconfigdirs="$noconfigdirs ld"
204 fi
205
206 use_gnu_as=
207 # Make sure we don't let GNU as be added if we didn't want it.
208 if test x$with_gnu_as = xno ; then
209 use_gnu_as=no
210 noconfigdirs="$noconfigdirs gas"
211 fi
212
213 # some tools are so dependent upon X11 that if we're not building with X,
214 # it's not even worth trying to configure, much less build, that tool.
215
216 case ${with_x} in
217 yes | "") ;; # the default value for this tree is that X11 is available
218 no)
219 skipdirs="${skipdirs} tk itcl libgui"
220 # We won't be able to build gdbtk without X.
221 enable_gdbtk=no
222 ;;
223 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
224 esac
225
226 # Some tools are only suitable for building in a "native" situation.
227 # Remove these if host!=target.
228 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff gprof target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
229
230 # Similarly, some are only suitable for cross toolchains.
231 # Remove these if host=target.
232 cross_only="target-libgloss target-newlib target-opcodes"
233
234 case $is_cross_compiler in
235 no) skipdirs="${skipdirs} ${cross_only}" ;;
236 yes) skipdirs="${skipdirs} ${native_only}" ;;
237 esac
238
239 # If both --with-headers and --with-libs are specified, default to
240 # --without-newlib.
241 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
242 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
243 if test x"${with_newlib}" = x ; then
244 with_newlib=no
245 fi
246 fi
247
248 # Recognize --with-newlib/--without-newlib.
249 case ${with_newlib} in
250 no) skipdirs="${skipdirs} target-newlib" ;;
251 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
252 esac
253
254 # Configure extra directories which are host specific
255
256 case "${host}" in
257 *-cygwin*)
258 configdirs="$configdirs libtermcap" ;;
259 esac
260
261 # A target can indicate whether a language isn't supported for some reason.
262 # Only spaces may be used in this macro; not newlines or tabs.
263 unsupported_languages=
264
265 # Remove more programs from consideration, based on the host or
266 # target this usually means that a port of the program doesn't
267 # exist yet.
268
269 case "${host}" in
270 hppa*64*-*-*)
271 noconfigdirs="$noconfigdirs byacc"
272 ;;
273 i[[3456789]]86-*-vsta)
274 noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
275 ;;
276 i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
277 noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
278 ;;
279 i[[3456789]]86-*-mingw32*)
280 # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
281 noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
282 ;;
283 i[[3456789]]86-*-beos*)
284 noconfigdirs="$noconfigdirs tk itcl libgui gdb"
285 ;;
286 *-*-cygwin*)
287 noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
288 ;;
289 *-*-netbsd*)
290 noconfigdirs="$noconfigdirs rcs"
291 ;;
292 ppc*-*-pe)
293 noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
294 ;;
295 powerpc-*-beos*)
296 noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
297 ;;
298 esac
299
300
301 AC_ARG_ENABLE(libada,
302 [ --enable-libada Builds libada directory],
303 ENABLE_LIBADA=$enableval,
304 ENABLE_LIBADA=yes)
305 if test "${ENABLE_LIBADA}" != "yes" ; then
306 noconfigdirs="$noconfigdirs target-libada"
307 noconfigdirs="$noconfigdirs gnattools"
308 fi
309
310 AC_ARG_ENABLE(libssp,
311 [ --enable-libssp Builds libssp directory],
312 ENABLE_LIBSSP=$enableval,
313 ENABLE_LIBSSP=yes)
314 if test "${ENABLE_LIBSSP}" != "yes" ; then
315 noconfigdirs="$noconfigdirs target-libssp"
316 fi
317
318 # Save it here so that, even in case of --enable-libgcj, if the Java
319 # front-end isn't enabled, we still get libgcj disabled.
320 libgcj_saved=$libgcj
321 case $enable_libgcj in
322 yes)
323 # If we reset it here, it won't get added to noconfigdirs in the
324 # target-specific build rules, so it will be forcibly enabled
325 # (unless the Java language itself isn't enabled).
326 libgcj=
327 ;;
328 no)
329 # Make sure we get it printed in the list of not supported target libs.
330 noconfigdirs="$noconfigdirs ${libgcj}"
331 ;;
332 esac
333
334
335 # Allow --disable-libmudflap to exclude target-libmudflap
336 case $enable_libmudflap in
337 yes)
338 ;;
339 no)
340 noconfigdirs="$noconfigdirs target-libmudflap"
341 ;;
342 "")
343 case "${target}" in
344 *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
345 # Enable libmudflap by default in GNU and friends.
346 ;;
347 *-*-freebsd*)
348 # Enable libmudflap by default in FreeBSD.
349 ;;
350 *)
351 # Disable it by default everywhere else.
352 noconfigdirs="$noconfigdirs target-libmudflap"
353 ;;
354 esac
355 esac
356
357
358 case "${target}" in
359 *-*-chorusos)
360 noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
361 ;;
362 powerpc-*-darwin*)
363 noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
364 noconfigdirs="$noconfigdirs sim target-rda"
365 ;;
366 *-*-darwin*)
367 noconfigdirs="$noconfigdirs ld gas gdb gprof"
368 noconfigdirs="$noconfigdirs sim target-rda"
369 noconfigdirs="$noconfigdirs ${libgcj}"
370 ;;
371 *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
372 noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
373 ;;
374 *-*-freebsd*)
375 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
376 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
377 && test -f /usr/local/include/gmp.h; then
378 with_gmp=/usr/local
379 fi
380
381 # Skip some stuff that's unsupported on some FreeBSD configurations.
382 case "${target}" in
383 i*86-*-*) ;;
384 alpha*-*-*) ;;
385 *)
386 noconfigdirs="$noconfigdirs ${libgcj}"
387 ;;
388 esac
389 ;;
390 *-*-kaos*)
391 # Remove unsupported stuff on all kaOS configurations.
392 skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
393 skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
394 skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
395 noconfigdirs="$noconfigdirs target-libgloss"
396 ;;
397 *-*-netbsd*)
398 # Skip some stuff on all NetBSD configurations.
399 noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
400
401 # Skip some stuff that's unsupported on some NetBSD configurations.
402 case "${target}" in
403 i*86-*-netbsdelf*) ;;
404 arm*-*-netbsdelf*) ;;
405 *)
406 noconfigdirs="$noconfigdirs ${libgcj}"
407 ;;
408 esac
409 ;;
410 *-*-netware*)
411 noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
412 ;;
413 *-*-rtems*)
414 noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
415 ;;
416 # The tpf target doesn't support gdb yet.
417 *-*-tpf*)
418 noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
419 ;;
420 *-*-uclinux*)
421 noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
422 ;;
423 *-*-vxworks*)
424 noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
425 ;;
426 m32c-*-*)
427 noconfigdirs="$noconfigdirs target-libstdc++-v3"
428 ;;
429 alpha*-dec-osf*)
430 # ld works, but does not support shared libraries.
431 # newlib is not 64 bit ready. I'm not sure about fileutils.
432 # gas doesn't generate exception information.
433 noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
434 ;;
435 alpha*-*-*vms*)
436 noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
437 ;;
438 alpha*-*-linux*)
439 # newlib is not 64 bit ready
440 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
441 ;;
442 alpha*-*-*)
443 # newlib is not 64 bit ready
444 noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
445 ;;
446 am33_2.0-*-linux*)
447 noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
448 ;;
449 sh-*-linux*)
450 noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
451 ;;
452 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
453 noconfigdirs="$noconfigdirs ${libgcj}"
454 noconfigdirs="$noconfigdirs target-examples"
455 noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
456 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
457 noconfigdirs="$noconfigdirs expect dejagnu"
458 # the C++ libraries don't build on top of CE's C libraries
459 noconfigdirs="$noconfigdirs target-libstdc++-v3"
460 noconfigdirs="$noconfigdirs target-newlib"
461 case "${host}" in
462 *-*-cygwin*) ;; # keep gdb and readline
463 *) noconfigdirs="$noconfigdirs gdb readline"
464 ;;
465 esac
466 ;;
467 arc-*-*)
468 noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
469 ;;
470 arm-semi-aof )
471 ;;
472 arm-*-coff | strongarm-*-coff | xscale-*-coff)
473 noconfigdirs="$noconfigdirs ${libgcj}"
474 ;;
475 arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
476 noconfigdirs="$noconfigdirs target-libffi target-qthreads"
477 ;;
478 arm*-*-symbianelf*)
479 noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
480 ;;
481 arm-*-pe*)
482 noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
483 ;;
484 thumb-*-coff)
485 noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
486 ;;
487 thumb-*-elf)
488 noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
489 ;;
490 thumb-*-pe)
491 noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
492 ;;
493 arm-*-riscix*)
494 noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
495 ;;
496 avr-*-*)
497 noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
498 ;;
499 bfin-*-*)
500 noconfigdirs="$noconfigdirs target-libgloss gdb"
501 if [ x${is_cross_compiler} != xno ] ; then
502 target_configdirs="${target_configdirs} target-bsp target-cygmon"
503 fi
504 ;;
505 c4x-*-* | tic4x-*-*)
506 noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
507 ;;
508 c54x*-*-* | tic54x-*-*)
509 noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
510 ;;
511 cris-*-* | crisv32-*-*)
512 unsupported_languages="$unsupported_languages java"
513 case "${target}" in
514 *-*-aout)
515 unsupported_languages="$unsupported_languages fortran"
516 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
517 *-*-elf)
518 unsupported_languages="$unsupported_languages fortran"
519 noconfigdirs="$noconfigdirs target-boehm-gc";;
520 *-*-linux*)
521 noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
522 *)
523 unsupported_languages="$unsupported_languages fortran"
524 noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
525 esac
526 ;;
527 crx-*-*)
528 noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
529 ;;
530 d10v-*-*)
531 noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
532 ;;
533 d30v-*-*)
534 noconfigdirs="$noconfigdirs ${libgcj} gdb"
535 ;;
536 fr30-*-elf*)
537 noconfigdirs="$noconfigdirs ${libgcj} gdb"
538 ;;
539 frv-*-*)
540 noconfigdirs="$noconfigdirs ${libgcj}"
541 ;;
542 h8300*-*-*)
543 noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
544 ;;
545 h8500-*-*)
546 noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
547 ;;
548 hppa1.1-*-osf* | hppa1.1-*-bsd* )
549 ;;
550 hppa*64*-*-linux* | parisc*64*-*-linux*)
551 # In this case, it's because the hppa64-linux target is for
552 # the kernel only at this point and has no libc, and thus no
553 # headers, crt*.o, etc., all of which are needed by these.
554 noconfigdirs="$noconfigdirs target-zlib"
555 ;;
556 parisc*-*-linux* | hppa*-*-linux*)
557 ;;
558 hppa*-*-*elf* | \
559 hppa*-*-lites* | \
560 hppa*-*-openbsd* | \
561 hppa*64*-*-*)
562 noconfigdirs="$noconfigdirs ${libgcj}"
563 ;;
564 hppa*-*-*)
565 # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
566 # build on HP-UX 10.20.
567 noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
568 ;;
569 i960-*-*)
570 noconfigdirs="$noconfigdirs ${libgcj} gdb"
571 ;;
572 ia64*-*-elf*)
573 # No gdb support yet.
574 noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
575 ;;
576 ia64*-**-hpux*)
577 # No gdb or ld support yet.
578 noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
579 ;;
580 i370-*-opened*)
581 ;;
582 i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
583 noconfigdirs="$noconfigdirs ${libgcj}"
584 ;;
585 i[[3456789]]86-*-linux*)
586 # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
587 # not build java stuff by default.
588 case "${target}" in
589 *-*-*libc1*)
590 noconfigdirs="$noconfigdirs ${libgcj}";;
591 esac
592
593 # This section makes it possible to build newlib natively on linux.
594 # If we are using a cross compiler then don't configure newlib.
595 if test x${is_cross_compiler} != xno ; then
596 noconfigdirs="$noconfigdirs target-newlib"
597 fi
598 noconfigdirs="$noconfigdirs target-libgloss"
599 # If we are not using a cross compiler, do configure newlib.
600 # Note however, that newlib will only be configured in this situation
601 # if the --with-newlib option has been given, because otherwise
602 # 'target-newlib' will appear in skipdirs.
603 ;;
604 i[[3456789]]86-*-mingw32*)
605 target_configdirs="$target_configdirs target-mingw"
606 noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
607
608 # Can't build gdb for mingw32 if not native.
609 case "${host}" in
610 i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
611 *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
612 ;;
613 esac
614 ;;
615 *-*-cygwin*)
616 target_configdirs="$target_configdirs target-libtermcap target-winsup"
617 noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
618 # always build newlib if winsup directory is present.
619 if test -d "$srcdir/winsup"; then
620 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
621 elif test -d "$srcdir/newlib"; then
622 echo "Warning: winsup is missing so newlib can't be built."
623 fi
624
625 # Can't build gdb for Cygwin if not native.
626 case "${host}" in
627 *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
628 *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
629 ;;
630 esac
631 ;;
632 i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
633 i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
634 ;;
635 i[[3456789]]86-*-pe)
636 noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
637 ;;
638 i[[3456789]]86-*-sco3.2v5*)
639 # The linker does not yet know about weak symbols in COFF,
640 # and is not configured to handle mixed ELF and COFF.
641 noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
642 ;;
643 i[[3456789]]86-*-sco*)
644 noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
645 ;;
646 i[[3456789]]86-*-solaris2*)
647 noconfigdirs="$noconfigdirs target-libgloss"
648 ;;
649 i[[3456789]]86-*-sysv4*)
650 noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
651 ;;
652 i[[3456789]]86-*-beos*)
653 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
654 ;;
655 m32r-*-*)
656 noconfigdirs="$noconfigdirs ${libgcj}"
657 ;;
658 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
659 noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
660 ;;
661 m68k-*-elf*)
662 noconfigdirs="$noconfigdirs ${libgcj}"
663 ;;
664 m68k-*-coff*)
665 noconfigdirs="$noconfigdirs ${libgcj}"
666 ;;
667 mcore-*-pe*)
668 # The EPOC C++ environment does not support exceptions or rtti,
669 # and so building libstdc++-v3 tends not to always work.
670 noconfigdirs="$noconfigdirs target-libstdc++-v3"
671 ;;
672 mmix-*-*)
673 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
674 unsupported_languages="$unsupported_languages fortran java"
675 ;;
676 mn10200-*-*)
677 noconfigdirs="$noconfigdirs ${libgcj}"
678 ;;
679 mn10300-*-*)
680 noconfigdirs="$noconfigdirs ${libgcj}"
681 ;;
682 ms1-*-*)
683 noconfigdirs="$noconfigdirs sim"
684 ;;
685 powerpc-*-aix*)
686 # copied from rs6000-*-* entry
687 noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
688 ;;
689 powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
690 target_configdirs="$target_configdirs target-winsup"
691 noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
692 # always build newlib.
693 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
694 ;;
695 # This is temporary until we can link against shared libraries
696 powerpcle-*-solaris*)
697 noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
698 ;;
699 powerpc-*-beos*)
700 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
701 ;;
702 powerpc-*-eabi)
703 noconfigdirs="$noconfigdirs ${libgcj}"
704 ;;
705 powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
706 ;;
707 rs6000-*-lynxos*)
708 noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
709 ;;
710 rs6000-*-aix*)
711 noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
712 ;;
713 rs6000-*-*)
714 noconfigdirs="$noconfigdirs gprof ${libgcj}"
715 ;;
716 m68k-apollo-*)
717 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
718 ;;
719 mips*-*-irix5*)
720 noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
721 ;;
722 mips*-*-irix6*)
723 # Linking libjava exceeds command-line length limits on at least
724 # IRIX 6.2, but not on IRIX 6.5.
725 # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
726 # <oldham@codesourcery.com>
727 noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
728 ;;
729 mips*-dec-bsd*)
730 noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
731 ;;
732 mips*-*-bsd*)
733 noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
734 ;;
735 mipstx39-*-*)
736 noconfigdirs="$noconfigdirs gprof ${libgcj}" # same as generic mips
737 ;;
738 mips64*-*-linux*)
739 noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
740 ;;
741 mips*-*-linux*)
742 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
743 ;;
744 mips*-*-*)
745 noconfigdirs="$noconfigdirs gprof ${libgcj}"
746 ;;
747 romp-*-*)
748 noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
749 ;;
750 sh-*-* | sh64-*-*)
751 case "${host}" in
752 i[[3456789]]86-*-vsta) ;; # don't add gprof back in
753 i[[3456789]]86-*-go32*) ;; # don't add gprof back in
754 i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
755 *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
756 esac
757 noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
758 ;;
759 sparc-*-elf*)
760 noconfigdirs="$noconfigdirs ${libgcj}"
761 ;;
762 sparc64-*-elf*)
763 noconfigdirs="$noconfigdirs ${libgcj}"
764 ;;
765 sparclite-*-*)
766 noconfigdirs="$noconfigdirs ${libgcj}"
767 ;;
768 sparc-*-sunos4*)
769 noconfigdirs="$noconfigdirs ${libgcj}"
770 if test x${is_cross_compiler} != xno ; then
771 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
772 else
773 use_gnu_ld=no
774 fi
775 ;;
776 sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
777 noconfigdirs="$noconfigdirs ${libgcj}"
778 ;;
779 sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
780 ;;
781 v810-*-*)
782 noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
783 ;;
784 v850-*-*)
785 noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
786 ;;
787 v850e-*-*)
788 noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
789 ;;
790 v850ea-*-*)
791 noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
792 ;;
793 vax-*-vms)
794 noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
795 ;;
796 vax-*-*)
797 noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
798 ;;
799 xtensa-*-*)
800 noconfigdirs="$noconfigdirs ${libgcj}"
801 ;;
802 ip2k-*-*)
803 noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
804 ;;
805 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
806 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
807 ;;
808 *-*-lynxos*)
809 noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
810 ;;
811 *-*-*)
812 noconfigdirs="$noconfigdirs ${libgcj}"
813 ;;
814 esac
815
816 # If we aren't building newlib, then don't build libgloss, since libgloss
817 # depends upon some newlib header files.
818 case "${noconfigdirs}" in
819 *target-libgloss*) ;;
820 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
821 esac
822
823 # Work in distributions that contain no compiler tools, like Autoconf.
824 tentative_cc=""
825 host_makefile_frag=/dev/null
826 if test -d ${srcdir}/config ; then
827 case "${host}" in
828 m68k-hp-hpux*)
829 # Avoid "too much defining" errors from HPUX compiler.
830 tentative_cc="cc -Wp,-H256000"
831 # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
832 # If it's HP/UX ar, this should be harmless.
833 RANLIB="ar ts"
834 ;;
835 m68k-apollo-sysv*)
836 tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
837 ;;
838 m68k-apollo-bsd*)
839 #None of the Apollo compilers can compile gas or binutils. The preprocessor
840 # chokes on bfd, the compiler won't let you assign integers to enums, and
841 # other problems. Defining CC to gcc is a questionable way to say "don't use
842 # the apollo compiler" (the preferred version of GCC could be called cc,
843 # or whatever), but I'm not sure leaving CC as cc is any better...
844 #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
845 # Used to have BISON=yacc.
846 tentative_cc=gcc
847 ;;
848 m88k-dg-dgux*)
849 tentative_cc="gcc -Wall -ansi -D__using_DGUX"
850 ;;
851 m88k-harris-cxux*)
852 # Under CX/UX, we want to tell the compiler to use ANSI mode.
853 tentative_cc="cc -Xa"
854 host_makefile_frag="config/mh-cxux"
855 ;;
856 m88k-motorola-sysv*)
857 ;;
858 mips*-dec-ultrix*)
859 tentative_cc="cc -Wf,-XNg1000"
860 host_makefile_frag="config/mh-decstation"
861 ;;
862 mips*-nec-sysv4*)
863 # The C compiler on NEC MIPS SVR4 needs bigger tables.
864 tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
865 host_makefile_frag="config/mh-necv4"
866 ;;
867 mips*-sgi-irix4*)
868 # Tell compiler to use K&R C. We can't compile under the SGI Ansi
869 # environment. Also bump switch table size so that cp-parse will
870 # compile. Bump string length limit so linker builds.
871 tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
872 ;;
873 mips*-*-sysv4*)
874 host_makefile_frag="config/mh-sysv4"
875 ;;
876 mips*-*-sysv*)
877 # This is for a MIPS running RISC/os 4.52C.
878
879 # This is needed for GDB, but needs to be in the top-level make because
880 # if a library is compiled with the bsd headers and gets linked with the
881 # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
882 # a different size).
883 # ptrace(2) apparently has problems in the BSD environment. No workaround is
884 # known except to select the sysv environment. Could we use /proc instead?
885 # These "sysv environments" and "bsd environments" often end up being a pain.
886 #
887 # This is not part of CFLAGS because perhaps not all C compilers have this
888 # option.
889 tentative_cc="cc -systype sysv"
890 ;;
891 i370-ibm-opened*)
892 tentative_cc="c89"
893 ;;
894 i[[3456789]]86-*-sysv5*)
895 host_makefile_frag="config/mh-sysv5"
896 ;;
897 i[[3456789]]86-*-dgux*)
898 tentative_cc="gcc -Wall -ansi -D__using_DGUX"
899 host_makefile_frag="config/mh-dgux386"
900 ;;
901 i[[3456789]]86-ncr-sysv4.3*)
902 # The MetaWare compiler will generate a copyright message unless you
903 # turn it off by adding the -Hnocopyr flag.
904 tentative_cc="cc -Hnocopyr"
905 ;;
906 i[[3456789]]86-ncr-sysv4*)
907 # for an NCR 3000 (i486/SVR4) system.
908 # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
909 # This compiler not only emits obnoxious copyright messages every time
910 # you run it, but it chokes and dies on a whole bunch of GNU source
911 # files. Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
912 tentative_cc="/usr/ccs/ATT/cc"
913 host_makefile_frag="config/mh-ncr3000"
914 ;;
915 i[[3456789]]86-*-sco3.2v5*)
916 ;;
917 i[[3456789]]86-*-sco*)
918 # The native C compiler botches some simple uses of const. Unfortunately,
919 # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
920 tentative_cc="cc -Dconst="
921 host_makefile_frag="config/mh-sco"
922 ;;
923 i[[3456789]]86-*-udk*)
924 host_makefile_frag="config/mh-sysv5"
925 ;;
926 i[[3456789]]86-*-solaris2*)
927 host_makefile_frag="config/mh-sysv4"
928 ;;
929 i[[3456789]]86-*-msdosdjgpp*)
930 host_makefile_frag="config/mh-djgpp"
931 ;;
932 *-cygwin*)
933 host_makefile_frag="config/mh-cygwin"
934 ;;
935 *-mingw32*)
936 ;;
937 *-interix*)
938 host_makefile_frag="config/mh-interix"
939 ;;
940 vax-*-ultrix2*)
941 # The old BSD pcc isn't up to compiling parts of gdb so use gcc
942 tentative_cc=gcc
943 ;;
944 *-*-solaris2*)
945 host_makefile_frag="config/mh-solaris"
946 ;;
947 m68k-sun-sunos*)
948 # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
949 # without overflowing the jump tables (-J says to use a 32 bit table)
950 tentative_cc="cc -J"
951 ;;
952 *-hp-hpux*)
953 tentative_cc="cc -Wp,-H256000"
954 ;;
955 *-*-hiux*)
956 tentative_cc="cc -Wp,-H256000"
957 ;;
958 rs6000-*-lynxos*)
959 # /bin/cc is less than useful for our purposes. Always use GCC
960 tentative_cc="/usr/cygnus/progressive/bin/gcc"
961 host_makefile_frag="config/mh-lynxrs6k"
962 ;;
963 powerpc-*-darwin*)
964 host_makefile_frag="config/mh-ppc-darwin"
965 ;;
966 *-*-lynxos*)
967 # /bin/cc is less than useful for our purposes. Always use GCC
968 tentative_cc="/bin/gcc"
969 ;;
970 *-*-sysv4*)
971 host_makefile_frag="config/mh-sysv4"
972 ;;
973 # This is placed last to prevent interfering with the cases above.
974 i[[3456789]]86-*-*)
975 # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
976 host_makefile_frag="config/mh-x86omitfp"
977 ;;
978 esac
979 fi
980
981 # If we aren't going to be using gcc, see if we can extract a definition
982 # of CC from the fragment.
983 # Actually, use the 'pre-extracted' version above.
984 if test -z "${CC}" && test "${build}" = "${host}" ; then
985 IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:"
986 found=
987 for dir in $PATH; do
988 test -z "$dir" && dir=.
989 if test -f $dir/gcc; then
990 found=yes
991 break
992 fi
993 done
994 IFS="$save_ifs"
995 if test -z "${found}" && test -n "${tentative_cc}" ; then
996 CC=$tentative_cc
997 fi
998 fi
999
1000 if test "${build}" != "${host}" ; then
1001 # If we are doing a Canadian Cross, in which the host and build systems
1002 # are not the same, we set reasonable default values for the tools.
1003
1004 CC=${CC-${host_alias}-gcc}
1005 CFLAGS=${CFLAGS-"-g -O2"}
1006 CXX=${CXX-${host_alias}-c++}
1007 CXXFLAGS=${CXXFLAGS-"-g -O2"}
1008 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1009 BUILD_PREFIX=${build_alias}-
1010 BUILD_PREFIX_1=${build_alias}-
1011
1012 else
1013 # Set reasonable default values for some tools even if not Canadian.
1014 # Of course, these are different reasonable default values, originally
1015 # specified directly in the Makefile.
1016 # We don't export, so that autoconf can do its job.
1017 # Note that all these settings are above the fragment inclusion point
1018 # in Makefile.in, so can still be overridden by fragments.
1019 # This is all going to change when we autoconfiscate...
1020
1021 CC_FOR_BUILD="\$(CC)"
1022 BUILD_PREFIX=
1023 BUILD_PREFIX_1=loser-
1024
1025 AC_PROG_CC
1026
1027 # We must set the default linker to the linker used by gcc for the correct
1028 # operation of libtool. If LD is not defined and we are using gcc, try to
1029 # set the LD default to the ld used by gcc.
1030 if test -z "$LD"; then
1031 if test "$GCC" = yes; then
1032 case $build in
1033 *-*-mingw*)
1034 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1035 *)
1036 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1037 esac
1038 case $gcc_prog_ld in
1039 # Accept absolute paths.
1040 [[\\/]* | [A-Za-z]:[\\/]*)]
1041 LD="$gcc_prog_ld" ;;
1042 esac
1043 fi
1044 fi
1045
1046 CXX=${CXX-"c++"}
1047 CFLAGS=${CFLAGS-"-g"}
1048 CXXFLAGS=${CXXFLAGS-"-g -O2"}
1049 fi
1050
1051 ACX_PROG_GNAT
1052 ACX_PROG_CMP_IGNORE_INITIAL
1053
1054 # Check for GMP and MPFR
1055 gmplibs=
1056 gmpinc=
1057 have_gmp=yes
1058 # Specify a location for mpfr
1059 # check for this first so it ends up on the link line before gmp.
1060 AC_ARG_WITH(mpfr-dir, [ --with-mpfr-dir=PATH Specify source directory for MPFR library])
1061
1062 if test "x$with_mpfr_dir" != x; then
1063 gmpinc="-I$with_mpfr_dir"
1064 gmplibs="$with_mpfr_dir/libmpfr.a"
1065 else
1066 gmplibs="-lmpfr"
1067 fi
1068
1069 AC_ARG_WITH(mpfr, [ --with-mpfr=PATH Specify directory for installed MPFR library])
1070
1071 if test "x$with_mpfr" != x; then
1072 gmplibs="-L$with_mpfr/lib $gmplibs"
1073 gmpinc="-I$with_mpfr/include"
1074 fi
1075
1076 # Specify a location for gmp
1077 AC_ARG_WITH(gmp-dir, [ --with-gmp-dir=PATH Specify source directory for GMP library])
1078
1079 if test "x$with_gmp_dir" != x; then
1080 gmpinc="$gmpinc -I$with_gmp_dir"
1081 if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1082 gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1083 elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1084 gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1085 fi
1086 # One of the later tests will catch the error if neither library is present.
1087 else
1088 gmplibs="$gmplibs -lgmp"
1089 fi
1090
1091 AC_ARG_WITH(gmp, [ --with-gmp=PATH Specify directory for installed GMP library])
1092
1093 if test "x$with_gmp" != x; then
1094 gmplibs="-L$with_gmp/lib $gmplibs"
1095 gmpinc="-I$with_gmp/include $gmpinc"
1096 fi
1097
1098 saved_CFLAGS="$CFLAGS"
1099 CFLAGS="$CFLAGS $gmpinc"
1100 # Check GMP actually works
1101 AC_MSG_CHECKING([for correct version of gmp.h])
1102 AC_TRY_COMPILE([#include "gmp.h"],[
1103 #if __GNU_MP_VERSION < 3
1104 choke me
1105 #endif
1106 ], [AC_MSG_RESULT([yes])],
1107 [AC_MSG_RESULT([no]); have_gmp=no])
1108
1109 if test x"$have_gmp" = xyes; then
1110 AC_MSG_CHECKING([for MPFR])
1111
1112 saved_LIBS="$LIBS"
1113 LIBS="$LIBS $gmplibs"
1114 AC_TRY_LINK([#include <gmp.h>
1115 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1116 [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1117 LIBS="$saved_LIBS"
1118 CFLAGS="$saved_CFLAGS"
1119 fi
1120
1121 # Flags needed for both GMP and/or MPFR
1122 AC_SUBST(gmplibs)
1123 AC_SUBST(gmpinc)
1124
1125 # By default, C is the only stage 1 language.
1126 stage1_languages=c
1127 AC_SUBST(stage1_languages)
1128
1129 # Figure out what language subdirectories are present.
1130 # Look if the user specified --enable-languages="..."; if not, use
1131 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1132 # go away some day.
1133 # NB: embedded tabs in this IF block -- do not untabify
1134 if test -d ${srcdir}/gcc; then
1135 if test x"${enable_languages+set}" != xset; then
1136 if test x"${LANGUAGES+set}" = xset; then
1137 enable_languages="${LANGUAGES}"
1138 echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1139 else
1140 enable_languages=all
1141 fi
1142 else
1143 if test x"${enable_languages}" = x ||
1144 test x"${enable_languages}" = xyes;
1145 then
1146 echo configure.in: --enable-languages needs at least one language argument 1>&2
1147 exit 1
1148 fi
1149 fi
1150 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1151
1152 # 'f95' is the old name for the 'fortran' language. We issue a warning
1153 # and make the substitution.
1154 case ,${enable_languages}, in
1155 *,f95,*)
1156 echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1157 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1158 ;;
1159 esac
1160
1161 # First scan to see if an enabled language requires some other language.
1162 # We assume that a given config-lang.in will list all the language
1163 # front ends it requires, even if some are required indirectly.
1164 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1165 case ${lang_frag} in
1166 ..) ;;
1167 # The odd quoting in the next line works around
1168 # an apparent bug in bash 1.12 on linux.
1169 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1170 *)
1171 # From the config-lang.in, get $language, $lang_requires
1172 language=
1173 lang_requires=
1174 . ${lang_frag}
1175 for other in ${lang_requires} ; do
1176 case ,${enable_languages}, in
1177 *,$other,*) ;;
1178 *,all,*) ;;
1179 *,$language,*)
1180 echo " \`$other' language required by \`$language'; enabling" 1>&2
1181 enable_languages="${enable_languages},${other}"
1182 ;;
1183 esac
1184 done
1185 ;;
1186 esac
1187 done
1188
1189 new_enable_languages=c
1190 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1191 potential_languages=c
1192
1193 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1194 case ${lang_frag} in
1195 ..) ;;
1196 # The odd quoting in the next line works around
1197 # an apparent bug in bash 1.12 on linux.
1198 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1199 *)
1200 # From the config-lang.in, get $language, $target_libs,
1201 # $lang_dirs, $boot_language, and $build_by_default
1202 language=
1203 target_libs=
1204 lang_dirs=
1205 boot_language=
1206 build_by_default=
1207 need_gmp=
1208 . ${lang_frag}
1209 potential_languages="${potential_languages},${language}"
1210 # This is quite sensitive to the ordering of the case statement arms.
1211 case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1212 *::*:*)
1213 echo "${lang_frag} doesn't set \$language." 1>&2
1214 exit 1
1215 ;;
1216 *:ada:no:*)
1217 # Ada was requested with no preexisting GNAT. Disable unconditionally.
1218 add_this_lang=no
1219 ;;
1220 *,${language},*:*:*:*)
1221 # Language was explicitly selected; include it.
1222 add_this_lang=yes
1223 ;;
1224 *,all,*:*:*:no)
1225 # 'all' was selected, but this is not a default language
1226 # so do not include it.
1227 add_this_lang=no
1228 ;;
1229 *,all,*:*:*:*)
1230 # 'all' was selected and this is a default language; include it.
1231 add_this_lang=yes
1232 ;;
1233 *)
1234 add_this_lang=no
1235 ;;
1236 esac
1237
1238 # Disable languages that need GMP if it isn't available.
1239 case ,${enable_languages},:${have_gmp}:${need_gmp} in
1240 *,${language},*:no:yes)
1241 # Specifically requested language; tell them.
1242 AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1243 ;;
1244 *:no:yes)
1245 # Silently disable.
1246 add_this_lang=no
1247 ;;
1248 esac
1249
1250 # Disable a language that is unsupported by the target.
1251 case " $unsupported_languages " in
1252 *" $language "*)
1253 add_this_lang=no
1254 ;;
1255 esac
1256
1257 case $add_this_lang in
1258 no)
1259 # Remove language-dependent dirs.
1260 eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1261 ;;
1262 *)
1263 new_enable_languages="$new_enable_languages,$language"
1264 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1265 case ${boot_language} in
1266 yes)
1267 # Add to (comma-separated) list of stage 1 languages.
1268 stage1_languages="${stage1_languages},${language}"
1269 ;;
1270 esac
1271 ;;
1272 esac
1273 ;;
1274 esac
1275 done
1276
1277 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1278 if test "x$missing_languages" != x; then
1279 AC_MSG_ERROR([
1280 The following requested languages could not be built: ${missing_languages}
1281 Recognised languages are: ${potential_languages}])
1282 fi
1283
1284 if test "x$new_enable_languages" != "x$enable_languages"; then
1285 echo The following languages will be built: ${new_enable_languages}
1286 fi
1287 enable_languages="$new_enable_languages"
1288 ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1289 fi
1290
1291 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1292 # $build_configdirs and $target_configdirs.
1293 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1294
1295 notsupp=""
1296 for dir in . $skipdirs $noconfigdirs ; do
1297 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1298 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1299 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1300 if test -r $srcdir/$dirname/configure ; then
1301 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1302 true
1303 else
1304 notsupp="$notsupp $dir"
1305 fi
1306 fi
1307 fi
1308 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1309 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1310 if test -r $srcdir/$dirname/configure ; then
1311 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1312 true
1313 else
1314 notsupp="$notsupp $dir"
1315 fi
1316 fi
1317 fi
1318 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1319 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1320 if test -r $srcdir/$dirname/configure ; then
1321 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1322 true
1323 else
1324 notsupp="$notsupp $dir"
1325 fi
1326 fi
1327 fi
1328 done
1329
1330 # Sometimes the tools are distributed with libiberty but with no other
1331 # libraries. In that case, we don't want to build target-libiberty.
1332 if test -n "${target_configdirs}" ; then
1333 others=
1334 for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1335 if test "$i" != "libiberty" ; then
1336 if test -r $srcdir/$i/configure ; then
1337 others=yes;
1338 break;
1339 fi
1340 fi
1341 done
1342 if test -z "${others}" ; then
1343 target_configdirs=
1344 fi
1345 fi
1346
1347 # Quietly strip out all directories which aren't configurable in this tree.
1348 # This relies on all configurable subdirectories being autoconfiscated, which
1349 # is now the case.
1350 build_configdirs_all="$build_configdirs"
1351 build_configdirs=
1352 for i in ${build_configdirs_all} ; do
1353 j=`echo $i | sed -e s/build-//g`
1354 if test -f ${srcdir}/$j/configure ; then
1355 build_configdirs="${build_configdirs} $i"
1356 fi
1357 done
1358
1359 configdirs_all="$configdirs"
1360 configdirs=
1361 for i in ${configdirs_all} ; do
1362 if test -f ${srcdir}/$i/configure ; then
1363 configdirs="${configdirs} $i"
1364 fi
1365 done
1366
1367 target_configdirs_all="$target_configdirs"
1368 target_configdirs=
1369 for i in ${target_configdirs_all} ; do
1370 j=`echo $i | sed -e s/target-//g`
1371 if test -f ${srcdir}/$j/configure ; then
1372 target_configdirs="${target_configdirs} $i"
1373 fi
1374 done
1375
1376 # Produce a warning message for the subdirs we can't configure.
1377 # This isn't especially interesting in the Cygnus tree, but in the individual
1378 # FSF releases, it's important to let people know when their machine isn't
1379 # supported by the one or two programs in a package.
1380
1381 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1382 # If $appdirs is non-empty, at least one of those directories must still
1383 # be configured, or we error out. (E.g., if the gas release supports a
1384 # specified target in some subdirs but not the gas subdir, we shouldn't
1385 # pretend that all is well.)
1386 if test -n "$appdirs" ; then
1387 for dir in $appdirs ; do
1388 if test -r $dir/Makefile.in ; then
1389 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1390 appdirs=""
1391 break
1392 fi
1393 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1394 appdirs=""
1395 break
1396 fi
1397 fi
1398 done
1399 if test -n "$appdirs" ; then
1400 echo "*** This configuration is not supported by this package." 1>&2
1401 exit 1
1402 fi
1403 fi
1404 # Okay, some application will build, or we don't care to check. Still
1405 # notify of subdirs not getting built.
1406 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1407 echo " ${notsupp}" 1>&2
1408 echo " (Any other directories should still work fine.)" 1>&2
1409 fi
1410
1411 case "$host" in
1412 *msdosdjgpp*)
1413 enable_gdbtk=no ;;
1414 esac
1415
1416 copy_dirs=
1417
1418 AC_ARG_WITH([build-sysroot],
1419 [ --with-build-sysroot=sysroot
1420 use sysroot as the system root during the build],
1421 [if test x"$withval" != x ; then
1422 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1423 fi],
1424 [SYSROOT_CFLAGS_FOR_TARGET=])
1425 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1426
1427 # Handle --with-headers=XXX. If the value is not "yes", the contents of
1428 # the named directory are copied to $(tooldir)/sys-include.
1429 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1430 if test x${is_cross_compiler} = xno ; then
1431 echo 1>&2 '***' --with-headers is only supported when cross compiling
1432 exit 1
1433 fi
1434 if test x"${with_headers}" != xyes ; then
1435 case "${exec_prefixoption}" in
1436 "") x=${prefix} ;;
1437 *) x=${exec_prefix} ;;
1438 esac
1439 copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1440 fi
1441 fi
1442
1443 # Handle --with-libs=XXX. If the value is not "yes", the contents of
1444 # the name directories are copied to $(tooldir)/lib. Multiple directories
1445 # are permitted.
1446 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1447 if test x${is_cross_compiler} = xno ; then
1448 echo 1>&2 '***' --with-libs is only supported when cross compiling
1449 exit 1
1450 fi
1451 if test x"${with_libs}" != xyes ; then
1452 # Copy the libraries in reverse order, so that files in the first named
1453 # library override files in subsequent libraries.
1454 case "${exec_prefixoption}" in
1455 "") x=${prefix} ;;
1456 *) x=${exec_prefix} ;;
1457 esac
1458 for l in ${with_libs}; do
1459 copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1460 done
1461 fi
1462 fi
1463
1464 # Handle ${copy_dirs}
1465 set fnord ${copy_dirs}
1466 shift
1467 while test $# != 0 ; do
1468 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1469 :
1470 else
1471 echo Copying $1 to $2
1472
1473 # Use the install script to create the directory and all required
1474 # parent directories.
1475 if test -d $2 ; then
1476 :
1477 else
1478 echo >config.temp
1479 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1480 fi
1481
1482 # Copy the directory, assuming we have tar.
1483 # FIXME: Should we use B in the second tar? Not all systems support it.
1484 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1485
1486 # It is the responsibility of the user to correctly adjust all
1487 # symlinks. If somebody can figure out how to handle them correctly
1488 # here, feel free to add the code.
1489
1490 echo $1 > $2/COPIED
1491 fi
1492 shift; shift
1493 done
1494
1495 extra_arflags_for_target=
1496 extra_nmflags_for_target=
1497 extra_ranlibflags_for_target=
1498 target_makefile_frag=/dev/null
1499 case "${target}" in
1500 *-*-netware*)
1501 target_makefile_frag="config/mt-netware"
1502 ;;
1503 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1504 target_makefile_frag="config/mt-gnu"
1505 ;;
1506 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1507 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1508 # commands to handle both 32-bit and 64-bit objects. These flags are
1509 # harmless if we're using GNU nm or ar.
1510 extra_arflags_for_target=" -X32_64"
1511 extra_nmflags_for_target=" -B -X32_64"
1512 ;;
1513 *-*-darwin*)
1514 # ranlib from Darwin requires the -c flag to look at common symbols.
1515 extra_ranlibflags_for_target=" -c"
1516 ;;
1517 mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1518 target_makefile_frag="config/mt-wince"
1519 ;;
1520 esac
1521
1522 alphaieee_frag=/dev/null
1523 case $target in
1524 alpha*-*-*)
1525 # This just makes sure to use the -mieee option to build target libs.
1526 # This should probably be set individually by each library.
1527 alphaieee_frag="config/mt-alphaieee"
1528 ;;
1529 esac
1530
1531 # If --enable-target-optspace always use -Os instead of -O2 to build
1532 # the target libraries, similarly if it is not specified, use -Os
1533 # on selected platforms.
1534 ospace_frag=/dev/null
1535 case "${enable_target_optspace}:${target}" in
1536 yes:*)
1537 ospace_frag="config/mt-ospace"
1538 ;;
1539 :d30v-*)
1540 ospace_frag="config/mt-d30v"
1541 ;;
1542 :m32r-* | :d10v-* | :fr30-*)
1543 ospace_frag="config/mt-ospace"
1544 ;;
1545 no:* | :*)
1546 ;;
1547 *)
1548 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1549 ;;
1550 esac
1551
1552 # Set with_gnu_as and with_gnu_ld as appropriate.
1553 #
1554 # This is done by determining whether or not the appropriate directory
1555 # is available, and by checking whether or not specific configurations
1556 # have requested that this magic not happen.
1557 #
1558 # The command line options always override the explicit settings in
1559 # configure.in, and the settings in configure.in override this magic.
1560 #
1561 # If the default for a toolchain is to use GNU as and ld, and you don't
1562 # want to do that, then you should use the --without-gnu-as and
1563 # --without-gnu-ld options for the configure script.
1564
1565 if test x${use_gnu_as} = x &&
1566 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1567 with_gnu_as=yes
1568 extra_host_args="$extra_host_args --with-gnu-as"
1569 fi
1570
1571 if test x${use_gnu_ld} = x &&
1572 echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1573 with_gnu_ld=yes
1574 extra_host_args="$extra_host_args --with-gnu-ld"
1575 fi
1576
1577 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1578 # can detect this case.
1579
1580 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1581 with_newlib=yes
1582 extra_host_args="$extra_host_args --with-newlib"
1583 fi
1584
1585 # Default to using --with-stabs for certain targets.
1586 if test x${with_stabs} = x ; then
1587 case "${target}" in
1588 mips*-*-irix[[56]]*)
1589 ;;
1590 mips*-*-* | alpha*-*-osf*)
1591 with_stabs=yes;
1592 extra_host_args="${extra_host_args} --with-stabs"
1593 ;;
1594 esac
1595 fi
1596
1597 # hpux11 in 64bit mode has libraries in a weird place. Arrange to find
1598 # them automatically.
1599 case "${host}" in
1600 hppa*64*-*-hpux11*)
1601 extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1602 ;;
1603 esac
1604
1605 # Some systems (e.g., one of the i386-aix systems the gas testers are
1606 # using) don't handle "\$" correctly, so don't use it here.
1607 tooldir='${exec_prefix}'/${target_alias}
1608 build_tooldir=${tooldir}
1609
1610 # Generate default definitions for YACC, M4, LEX and other programs that run
1611 # on the build machine. These are used if the Makefile can't locate these
1612 # programs in objdir.
1613 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1614 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1615 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1616 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1617 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1618 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1619 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1620
1621 # Create a .gdbinit file which runs the one in srcdir
1622 # and tells GDB to look there for source files.
1623
1624 if test -r ${srcdir}/.gdbinit ; then
1625 case ${srcdir} in
1626 .) ;;
1627 *) cat > ./.gdbinit <<EOF
1628 # ${NO_EDIT}
1629 dir ${srcdir}
1630 dir .
1631 source ${srcdir}/.gdbinit
1632 EOF
1633 ;;
1634 esac
1635 fi
1636
1637 # Make sure that the compiler is able to generate an executable. If it
1638 # can't, we are probably in trouble. We don't care whether we can run the
1639 # executable--we might be using a cross compiler--we only care whether it
1640 # can be created. At this point the main configure script has set CC.
1641 we_are_ok=no
1642 echo "int main () { return 0; }" > conftest.c
1643 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1644 if test $? = 0 ; then
1645 if test -s conftest || test -s conftest.exe ; then
1646 we_are_ok=yes
1647 fi
1648 fi
1649 case $we_are_ok in
1650 no)
1651 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1652 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1653 rm -f conftest*
1654 exit 1
1655 ;;
1656 esac
1657 rm -f conftest*
1658
1659 # The Solaris /usr/ucb/cc compiler does not appear to work.
1660 case "${host}" in
1661 sparc-sun-solaris2*)
1662 CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1663 if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1664 could_use=
1665 test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1666 if test -d /opt/cygnus/bin ; then
1667 if test "$could_use" = "" ; then
1668 could_use="/opt/cygnus/bin"
1669 else
1670 could_use="$could_use or /opt/cygnus/bin"
1671 fi
1672 fi
1673 if test "$could_use" = "" ; then
1674 echo "Warning: compilation may fail because you're using"
1675 echo "/usr/ucb/cc. You should change your PATH or CC "
1676 echo "variable and rerun configure."
1677 else
1678 echo "Warning: compilation may fail because you're using"
1679 echo "/usr/ucb/cc, when you should use the C compiler from"
1680 echo "$could_use. You should change your"
1681 echo "PATH or CC variable and rerun configure."
1682 fi
1683 fi
1684 ;;
1685 esac
1686
1687 case "${host}" in
1688 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1689 *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1690 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1691 esac
1692
1693 # Record target_configdirs and the configure arguments for target and
1694 # build configuration in Makefile.
1695 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1696 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1697
1698 # Determine whether gdb needs tk/tcl or not.
1699 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1700 # and in that case we want gdb to be built without tk. Ugh!
1701 # In fact I believe gdb is the *only* package directly dependent on tk,
1702 # so we should be able to put the 'maybe's in unconditionally and
1703 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
1704 # 100% sure that that's safe though.
1705
1706 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1707 case "$enable_gdbtk" in
1708 no)
1709 GDB_TK="" ;;
1710 yes)
1711 GDB_TK="${gdb_tk}" ;;
1712 *)
1713 # Only add the dependency on gdbtk when GDBtk is part of the gdb
1714 # distro. Eventually someone will fix this and move Insight, nee
1715 # gdbtk to a separate directory.
1716 if test -d ${srcdir}/gdb/gdbtk ; then
1717 GDB_TK="${gdb_tk}"
1718 else
1719 GDB_TK=""
1720 fi
1721 ;;
1722 esac
1723
1724 # Strip out unwanted targets.
1725
1726 # While at that, we remove Makefiles if we were started for recursive
1727 # configuration, so that the top-level Makefile reconfigures them,
1728 # like we used to do when configure itself was recursive.
1729
1730 # Loop over modules. $extrasub must be used with care, limiting as
1731 # much as possible the usage of range addresses. That's because autoconf
1732 # splits the sed script to overcome limits in the number of commands,
1733 # and relying on carefully-timed sed passes may turn out to be very hard
1734 # to maintain later. In this particular case, you just have to be careful
1735 # not to nest @if/@endif pairs, because configure will not warn you at all.
1736
1737 AC_ARG_ENABLE([bootstrap],
1738 [ --enable-bootstrap[=lean] Enable bootstrapping [no]],,
1739 enable_bootstrap=default)
1740
1741 # Issue errors and warnings for invalid/strange bootstrap combinations.
1742 case "$configdirs" in
1743 *gcc*) have_compiler=yes ;;
1744 *) have_compiler=no ;;
1745 esac
1746
1747 case "$have_compiler:$host:$target:$enable_bootstrap" in
1748 *:*:*:no) ;;
1749
1750 # Default behavior. (We'll) enable bootstrap if we have a compiler
1751 # and we are in a native configuration.
1752 yes:$build:$build:default)
1753 # This will become 'yes'
1754 enable_bootstrap=no ;;
1755
1756 *:*:*:default)
1757 enable_bootstrap=no ;;
1758
1759 # We have a compiler and we are in a native configuration, bootstrap is ok
1760 yes:$build:$build:yes | yes:$build:$build:lean)
1761 ;;
1762
1763 # Other configurations, but we have a compiler. Assume the user knows
1764 # what he's doing.
1765 yes:*:*:yes | yes:*:*:lean)
1766 AC_MSG_WARN([trying to bootstrap a cross compiler])
1767 ;;
1768
1769 # No compiler: if they passed --enable-bootstrap explicitly, fail
1770 no:*:*:yes | no:*:*:lean)
1771 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1772
1773 # Fail if wrong command line
1774 *)
1775 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1776 ;;
1777 esac
1778
1779 # Adjust the toplevel makefile according to whether bootstrap was selected.
1780 case "$enable_bootstrap" in
1781 yes)
1782 bootstrap_lean='#'
1783 bootstrap_suffix=bootstrap ;;
1784 lean)
1785 bootstrap_lean=''
1786 bootstrap_suffix=bootstrap ;;
1787 no)
1788 bootstrap_suffix=no-bootstrap ;;
1789 esac
1790 AC_SUBST(bootstrap_lean)
1791
1792 for module in ${build_configdirs} ; do
1793 if test -z "${no_recursion}" \
1794 && test -f ${build_subdir}/${module}/Makefile; then
1795 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1796 rm -f ${build_subdir}/${module}/Makefile
1797 fi
1798 extrasub="$extrasub
1799 /^@if build-$module\$/d
1800 /^@endif build-$module\$/d
1801 /^@if build-$module-$bootstrap_suffix\$/d
1802 /^@endif build-$module-$bootstrap_suffix\$/d"
1803 done
1804 for module in ${configdirs} ; do
1805 if test -z "${no_recursion}" \
1806 && test -f ${module}/Makefile; then
1807 echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1808 rm -f ${module}/Makefile
1809 fi
1810 extrasub="$extrasub
1811 /^@if $module\$/d
1812 /^@endif $module\$/d
1813 /^@if $module-$bootstrap_suffix\$/d
1814 /^@endif $module-$bootstrap_suffix\$/d"
1815 done
1816 for module in ${target_configdirs} ; do
1817 if test -z "${no_recursion}" \
1818 && test -f ${target_subdir}/${module}/Makefile; then
1819 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1820 rm -f ${target_subdir}/${module}/Makefile
1821 fi
1822 extrasub="$extrasub
1823 /^@if target-$module\$/d
1824 /^@endif target-$module\$/d
1825 /^@if target-$module-$bootstrap_suffix\$/d
1826 /^@endif target-$module-$bootstrap_suffix\$/d"
1827 done
1828
1829 extrasub="$extrasub
1830 /^@if /,/^@endif /d"
1831
1832 # Create the serialization dependencies. This uses a temporary file.
1833
1834 AC_ARG_ENABLE([serial-configure],
1835 [ --enable-serial-[{host,target,build}-]configure
1836 Force sequential configuration of
1837 sub-packages for the host, target or build
1838 machine, or all sub-packages])
1839
1840 case ${enable_serial_configure} in
1841 yes)
1842 enable_serial_build_configure=yes
1843 enable_serial_host_configure=yes
1844 enable_serial_target_configure=yes
1845 ;;
1846 esac
1847
1848 # These force 'configure's to be done one at a time, to avoid problems
1849 # with contention over a shared config.cache.
1850 rm -f serdep.tmp
1851 echo '# serdep.tmp' > serdep.tmp
1852 olditem=
1853 test "x${enable_serial_build_configure}" = xyes &&
1854 for item in ${build_configdirs} ; do
1855 case ${olditem} in
1856 "") ;;
1857 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1858 esac
1859 olditem=${item}
1860 done
1861 olditem=
1862 test "x${enable_serial_host_configure}" = xyes &&
1863 for item in ${configdirs} ; do
1864 case ${olditem} in
1865 "") ;;
1866 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1867 esac
1868 olditem=${item}
1869 done
1870 olditem=
1871 test "x${enable_serial_target_configure}" = xyes &&
1872 for item in ${target_configdirs} ; do
1873 case ${olditem} in
1874 "") ;;
1875 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1876 esac
1877 olditem=${item}
1878 done
1879 serialization_dependencies=serdep.tmp
1880 AC_SUBST_FILE(serialization_dependencies)
1881
1882 # Base args. Strip norecursion, cache-file, srcdir, host, build,
1883 # target and nonopt. These are the ones we might not want to pass
1884 # down to subconfigures. Also strip program-prefix, program-suffix,
1885 # and program-transform-name, so that we can pass down a consistent
1886 # program-transform-name. If autoconf has put single quotes around
1887 # any of these arguments (because they contain shell metacharacters)
1888 # then this will fail; in practice this only happens for
1889 # --program-transform-name, so be sure to override --program-transform-name
1890 # at the end of the argument list.
1891 # These will be expanded by make, so quote '$'.
1892 cat <<\EOF_SED > conftestsed
1893 s/ --no[[^ ]]*/ /g
1894 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1895 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1896 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1897 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1898 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1899 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1900 s/ -cache-file[[= ]][[^ ]]*//g
1901 s/ -srcdir[[= ]][[^ ]]*//g
1902 s/ -host[[= ]][[^ ]]*//g
1903 s/ -build[[= ]][[^ ]]*//g
1904 s/ -target[[= ]][[^ ]]*//g
1905 s/ -program-prefix[[= ]][[^ ]]*//g
1906 s/ -program-suffix[[= ]][[^ ]]*//g
1907 s/ -program-transform-name[[= ]][[^ ]]*//g
1908 s/ [[^' -][^ ]*] / /
1909 s/^ *//;s/ *$//
1910 s,\$,$$,g
1911 EOF_SED
1912 sed -f conftestsed <<EOF_SED > conftestsed.out
1913 ${ac_configure_args}
1914 EOF_SED
1915 baseargs=`cat conftestsed.out`
1916 rm -f conftestsed conftestsed.out
1917
1918 # Add in --program-transform-name, after --program-prefix and
1919 # --program-suffix have been applied to it. Autoconf has already
1920 # doubled dollar signs and backslashes in program_transform_name; we want
1921 # the backslashes un-doubled, and then the entire thing wrapped in single
1922 # quotes, because this will be expanded first by make and then by the shell.
1923 # Also, because we want to override the logic in subdir configure scripts to
1924 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1925 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1926 ${program_transform_name}
1927 EOF_SED
1928 gcc_transform_name=`cat conftestsed.out`
1929 rm -f conftestsed.out
1930 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1931
1932 # For the build-side libraries, we just need to pretend we're native,
1933 # and not use the same cache file. Multilibs are neither needed nor
1934 # desired.
1935 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
1936
1937 # For host modules, accept cache file option, or specification as blank.
1938 case "${cache_file}" in
1939 "") # empty
1940 cache_file_option="" ;;
1941 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1942 cache_file_option="--cache-file=${cache_file}" ;;
1943 *) # relative path
1944 cache_file_option="--cache-file=../${cache_file}" ;;
1945 esac
1946
1947 # Host dirs don't like to share a cache file either, horribly enough.
1948 # This seems to be due to autoconf 2.5x stupidity.
1949 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1950
1951 target_configargs=${baseargs}
1952
1953 # Passing a --with-cross-host argument lets the target libraries know
1954 # whether they are being built with a cross-compiler or being built
1955 # native. However, it would be better to use other mechanisms to make the
1956 # sorts of decisions they want to make on this basis. Please consider
1957 # this option to be deprecated. FIXME.
1958 if test x${is_cross_compiler} = xyes ; then
1959 target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1960 fi
1961
1962 # Default to --enable-multilib.
1963 if test x${enable_multilib} = x ; then
1964 target_configargs="--enable-multilib ${target_configargs}"
1965 fi
1966
1967 # Pass --with-newlib if appropriate. Note that target_configdirs has
1968 # changed from the earlier setting of with_newlib.
1969 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1970 target_configargs="--with-newlib ${target_configargs}"
1971 fi
1972
1973 # Different target subdirs use different values of certain variables
1974 # (notably CXX). Worse, multilibs use *lots* of different values.
1975 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1976 # it doesn't automatically accept command-line overrides of them.
1977 # This means it's not safe for target subdirs to share a cache file,
1978 # which is disgusting, but there you have it. Hopefully this can be
1979 # fixed in future. It's still worthwhile to use a cache file for each
1980 # directory. I think.
1981
1982 # Pass the appropriate --build, --host, --target and --cache-file arguments.
1983 # We need to pass --target, as newer autoconf's requires consistency
1984 # for target_alias and gcc doesn't manage it consistently.
1985 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
1986
1987 FLAGS_FOR_TARGET=
1988 case " $target_configdirs " in
1989 *" newlib "*)
1990 case " $target_configargs " in
1991 *" --with-newlib "*)
1992 case "$target" in
1993 *-cygwin*)
1994 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/include -isystem $$s/winsup/cygwin/include -isystem $$s/winsup/w32api/include' ;;
1995 esac
1996
1997 # If we're not building GCC, don't discard standard headers.
1998 if test -d ${srcdir}/gcc; then
1999 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2000
2001 if test "${build}" != "${host}"; then
2002 # On Canadian crosses, CC_FOR_TARGET will have already been set
2003 # by `configure', so we won't have an opportunity to add -Bgcc/
2004 # to it. This is right: we don't want to search that directory
2005 # for binaries, but we want the header files in there, so add
2006 # them explicitly.
2007 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2008
2009 # Someone might think of using the pre-installed headers on
2010 # Canadian crosses, in case the installed compiler is not fully
2011 # compatible with the compiler being built. In this case, it
2012 # would be better to flag an error than risking having
2013 # incompatible object files being constructed. We can't
2014 # guarantee that an error will be flagged, but let's hope the
2015 # compiler will do it, when presented with incompatible header
2016 # files.
2017 fi
2018 fi
2019
2020 case "${target}-${is_cross_compiler}" in
2021 i[[3456789]]86-*-linux*-no)
2022 # Here host == target, so we don't need to build gcc,
2023 # so we don't want to discard standard headers.
2024 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2025 ;;
2026 *)
2027 # If we're building newlib, use its generic headers last, but search
2028 # for any libc-related directories first (so make it the last -B
2029 # switch).
2030 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2031 ;;
2032 esac
2033 ;;
2034 esac
2035 ;;
2036 esac
2037
2038 # Allow the user to override the flags for
2039 # our build compiler if desired.
2040 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2041
2042 # On Canadian crosses, we'll be searching the right directories for
2043 # the previously-installed cross compiler, so don't bother to add
2044 # flags for directories within the install tree of the compiler
2045 # being built; programs in there won't even run.
2046 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2047 # Search for pre-installed headers if nothing else fits.
2048 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2049 fi
2050
2051 if test "x${use_gnu_ld}" = x &&
2052 echo " ${configdirs} " | grep " ld " > /dev/null ; then
2053 # Arrange for us to find uninstalled linker scripts.
2054 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2055 fi
2056
2057 # Makefile fragments.
2058 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2059 do
2060 eval fragval=\$$frag
2061 if test $fragval != /dev/null; then
2062 eval $frag=${srcdir}/$fragval
2063 fi
2064 done
2065 AC_SUBST_FILE(host_makefile_frag)
2066 AC_SUBST_FILE(target_makefile_frag)
2067 AC_SUBST_FILE(alphaieee_frag)
2068 AC_SUBST_FILE(ospace_frag)
2069
2070 # Miscellanea: directories, flags, etc.
2071 AC_SUBST(RPATH_ENVVAR)
2072 AC_SUBST(BUILD_PREFIX)
2073 AC_SUBST(BUILD_PREFIX_1)
2074 AC_SUBST(tooldir)
2075 AC_SUBST(build_tooldir)
2076 AC_SUBST(GDB_TK)
2077
2078 # Build module lists & subconfigure args.
2079 AC_SUBST(build_configargs)
2080 AC_SUBST(build_configdirs)
2081
2082 # Host module lists & subconfigure args.
2083 AC_SUBST(host_configargs)
2084 AC_SUBST(configdirs)
2085
2086 # Target module lists & subconfigure args.
2087 AC_SUBST(target_configargs)
2088 AC_SUBST(target_configdirs)
2089
2090 # Build tools.
2091 AC_SUBST(CC_FOR_BUILD)
2092 AC_SUBST(config_shell)
2093
2094 # Host tools.
2095 NCN_STRICT_CHECK_TOOLS(AR, ar)
2096 NCN_STRICT_CHECK_TOOLS(AS, as)
2097 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2098 NCN_STRICT_CHECK_TOOLS(LD, ld)
2099 NCN_STRICT_CHECK_TOOLS(NM, nm)
2100 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2101 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2102 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2103 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2104 AC_SUBST(CC)
2105 AC_SUBST(CXX)
2106 AC_SUBST(CFLAGS)
2107 AC_SUBST(CFLAGS_FOR_BUILD)
2108 AC_SUBST(CXXFLAGS)
2109
2110 # Target tools. Do the tests using the names they may have passed in
2111 # the environment, then move it to CONFIGURED_*_FOR_TARGET.
2112 NCN_STRICT_CHECK_TARGET_TOOLS(AR_FOR_TARGET, ar)
2113 NCN_STRICT_CHECK_TARGET_TOOLS(AS_FOR_TARGET, as)
2114 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2115 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2116 NCN_STRICT_CHECK_TARGET_TOOLS(DLLTOOL_FOR_TARGET, dlltool)
2117 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2118 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2119 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2120 NCN_STRICT_CHECK_TARGET_TOOLS(LD_FOR_TARGET, ld)
2121 NCN_STRICT_CHECK_TARGET_TOOLS(LIPO_FOR_TARGET, lipo)
2122 NCN_STRICT_CHECK_TARGET_TOOLS(NM_FOR_TARGET, nm)
2123 NCN_STRICT_CHECK_TARGET_TOOLS(OBJDUMP_FOR_TARGET, objdump)
2124 NCN_STRICT_CHECK_TARGET_TOOLS(RANLIB_FOR_TARGET, ranlib, :)
2125 NCN_STRICT_CHECK_TARGET_TOOLS(STRIP_FOR_TARGET, strip)
2126 NCN_STRICT_CHECK_TARGET_TOOLS(WINDRES_FOR_TARGET, windres)
2127
2128 CONFIGURED_AR_FOR_TARGET="$AR_FOR_TARGET"
2129 CONFIGURED_AS_FOR_TARGET="$AS_FOR_TARGET"
2130 CONFIGURED_CC_FOR_TARGET="$CC_FOR_TARGET"
2131 CONFIGURED_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2132 CONFIGURED_DLLTOOL_FOR_TARGET="$DLLTOOL_FOR_TARGET"
2133 CONFIGURED_GCC_FOR_TARGET="$GCC_FOR_TARGET"
2134 CONFIGURED_GCJ_FOR_TARGET="$GCJ_FOR_TARGET"
2135 CONFIGURED_GFORTRAN_FOR_TARGET="$GFORTRAN_FOR_TARGET"
2136 CONFIGURED_LD_FOR_TARGET="$LD_FOR_TARGET"
2137 CONFIGURED_LIPO_FOR_TARGET="$LIPO_FOR_TARGET"
2138 CONFIGURED_NM_FOR_TARGET="$NM_FOR_TARGET"
2139 CONFIGURED_OBJDUMP_FOR_TARGET="$OBJDUMP_FOR_TARGET"
2140 CONFIGURED_RANLIB_FOR_TARGET="$RANLIB_FOR_TARGET"
2141 CONFIGURED_STRIP_FOR_TARGET="$STRIP_FOR_TARGET"
2142 CONFIGURED_WINDRES_FOR_TARGET="$WINDRES_FOR_TARGET"
2143
2144 AC_SUBST(CONFIGURED_AR_FOR_TARGET)dnl
2145 AC_SUBST(CONFIGURED_AS_FOR_TARGET)dnl
2146 AC_SUBST(CONFIGURED_CC_FOR_TARGET)dnl
2147 AC_SUBST(CONFIGURED_CXX_FOR_TARGET)dnl
2148 AC_SUBST(CONFIGURED_DLLTOOL_FOR_TARGET)dnl
2149 AC_SUBST(CONFIGURED_GCC_FOR_TARGET)dnl
2150 AC_SUBST(CONFIGURED_GCJ_FOR_TARGET)dnl
2151 AC_SUBST(CONFIGURED_GFORTRAN_FOR_TARGET)dnl
2152 AC_SUBST(CONFIGURED_LD_FOR_TARGET)dnl
2153 AC_SUBST(CONFIGURED_LIPO_FOR_TARGET)dnl
2154 AC_SUBST(CONFIGURED_NM_FOR_TARGET)dnl
2155 AC_SUBST(CONFIGURED_OBJDUMP_FOR_TARGET)dnl
2156 AC_SUBST(CONFIGURED_RANLIB_FOR_TARGET)dnl
2157 AC_SUBST(CONFIGURED_STRIP_FOR_TARGET)dnl
2158 AC_SUBST(CONFIGURED_WINDRES_FOR_TARGET)dnl
2159 AC_SUBST(FLAGS_FOR_TARGET)
2160
2161 # Fix up target tools.
2162 if test "x${build}" = "x${host}" ; then
2163 # In this case, the newly built tools can and should be used,
2164 # so we override the results of the autoconf tests.
2165 # This should really only happen when the tools are actually being built,
2166 # but that's a further refinement. The new build scheme, where
2167 # tools are built into a structure paralleling where they're installed,
2168 # should also eliminate all of this cleanly.
2169 AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2170 AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2171 CC_FOR_TARGET="\$(USUAL_CC_FOR_TARGET)"
2172 CXX_FOR_TARGET="\$(USUAL_CXX_FOR_TARGET)"
2173 RAW_CXX_FOR_TARGET="\$(USUAL_RAW_CXX_FOR_TARGET)"
2174 DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2175 GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
2176 GCJ_FOR_TARGET="\$(USUAL_GCJ_FOR_TARGET)"
2177 GFORTRAN_FOR_TARGET="\$(USUAL_GFORTRAN_FOR_TARGET)"
2178 LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2179 LIPO_FOR_TARGET="\$(USUAL_LIPO_FOR_TARGET)"
2180 NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2181 OBJDUMP_FOR_TARGET="\$(USUAL_OBJDUMP_FOR_TARGET)"
2182 RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2183 STRIP_FOR_TARGET="\$(USUAL_STRIP_FOR_TARGET)"
2184 WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2185 else
2186 # Just use the ones we found.
2187 AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2188 AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2189 CC_FOR_TARGET="\$(CONFIGURED_CC_FOR_TARGET)"
2190 CXX_FOR_TARGET="\$(CONFIGURED_CXX_FOR_TARGET)"
2191 RAW_CXX_FOR_TARGET="\$(CONFIGURED_CXX_FOR_TARGET)"
2192 DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2193 GCC_FOR_TARGET="\$(CONFIGURED_GCC_FOR_TARGET)"
2194 GCJ_FOR_TARGET="\$(CONFIGURED_GCJ_FOR_TARGET)"
2195 GFORTRAN_FOR_TARGET="\$(CONFIGURED_GFORTRAN_FOR_TARGET)"
2196 LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2197 LIPO_FOR_TARGET="\$(CONFIGURED_LIPO_FOR_TARGET)"
2198 NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2199 OBJDUMP_FOR_TARGET="\$(CONFIGURED_OBJDUMP_FOR_TARGET)"
2200 RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2201 STRIP_FOR_TARGET="\$(CONFIGURED_STRIP_FOR_TARGET)"
2202 WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2203 fi
2204
2205 AC_SUBST(RAW_CXX_FOR_TARGET)
2206
2207 # Certain tools may need extra flags.
2208 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2209 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2210 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2211
2212 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2213 AC_ARG_ENABLE(maintainer-mode,
2214 [ --enable-maintainer-mode enable make rules and dependencies not useful
2215 (and sometimes confusing) to the casual installer],
2216 USE_MAINTAINER_MODE=$enableval,
2217 USE_MAINTAINER_MODE=no)
2218 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2219 AC_SUBST(MAINTAINER_MODE_TRUE)
2220 AC_SUBST(MAINTAINER_MODE_FALSE)
2221 if test "$USE_MAINTAINER_MODE" = yes; then
2222 MAINTAINER_MODE_TRUE=
2223 MAINTAINER_MODE_FALSE='#'
2224 else
2225 MAINTAINER_MODE_TRUE='#'
2226 MAINTAINER_MODE_FALSE=
2227 fi
2228 MAINT=$MAINTAINER_MODE_TRUE
2229 AC_SUBST(MAINT)dnl
2230
2231 # ---------------------
2232 # GCC bootstrap support
2233 # ---------------------
2234
2235 # Stage specific cflags for build.
2236 stage1_cflags="-g"
2237 case $build in
2238 vax-*-*)
2239 case ${GCC} in
2240 yes) stage1_cflags="-g -Wa,-J" ;;
2241 *) stage1_cflags="-g -J" ;;
2242 esac ;;
2243 powerpc-*-darwin*)
2244 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2245 # sources; use -no-cpp-precomp to get to GNU cpp.
2246 # Apple's GCC has bugs in designated initializer handling, so disable
2247 # that too.
2248 stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2249 ;;
2250 esac
2251 AC_SUBST(stage1_cflags)
2252
2253 # It makes debugging easier if we create as symlinks the stage directories
2254 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1). In case this is not
2255 # possible, however, we can resort to mv.
2256 AC_CACHE_CHECK([if symbolic links between directories work],
2257 [gcc_cv_prog_ln_s_dir],
2258 [if test "${LN_S}" = "ln -s" \
2259 && mkdir confdir.s1 \
2260 && ln -s confdir.s1 confdir.s2 \
2261 && echo timestamp1 > confdir.s1/conftest.1 \
2262 && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2263 && echo timestamp2 > confdir.s2/conftest.2 \
2264 && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2265 && rm -f confdir.s2; then
2266 gcc_cv_prog_ln_s_dir=yes
2267 else
2268 gcc_cv_prog_ln_s_dir=no
2269 fi
2270 rm -rf confdir.s1 confdir.s2])
2271
2272 case ${gcc_cv_prog_ln_s_dir} in
2273 yes)
2274 CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2275 UNDO_LINK_TO_DIR='rm -f $$1' ;;
2276 *)
2277 CREATE_LINK_TO_DIR='mv $$1 $$2'
2278 UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2279 esac
2280 AC_SUBST(CREATE_LINK_TO_DIR)
2281 AC_SUBST(UNDO_LINK_TO_DIR)
2282
2283 # Enable -Werror in bootstrap stage2 and later.
2284 # Change the default to "no" on release branches.
2285 AC_ARG_ENABLE(werror,
2286 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
2287 [enable_werror=yes])
2288 case ${enable_werror} in
2289 yes) stage2_werror_flag="--enable-werror-always" ;;
2290 *) stage2_werror_flag="" ;;
2291 esac
2292 AC_SUBST(stage2_werror_flag)
2293
2294 AC_OUTPUT(Makefile)