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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/>.
18
19 ##############################################################################
20 ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
21
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/cloog.m4])
32
33 AC_INIT(move-if-change)
34 AC_PREREQ(2.64)
35 AC_DISABLE_OPTION_CHECKING
36
37 progname=$0
38 # if PWD already has a value, it is probably wrong.
39 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
40
41 # Export original configure arguments for use by sub-configures.
42 # Quote arguments with shell meta charatcers.
43 TOPLEVEL_CONFIGURE_ARGUMENTS=
44 set -- "$progname" "$@"
45 for ac_arg
46 do
47 case "$ac_arg" in
48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
50 # if the argument is of the form -foo=baz, quote the baz part only
51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
52 *) ;;
53 esac
54 # Add the quoted argument to the list.
55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
56 done
57 if test "$silent" = yes; then
58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
59 fi
60 # Remove the initial space we just introduced and, as these will be
61 # expanded by make, quote '$'.
62 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
63 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
64
65 # Find the build, host, and target systems.
66 ACX_NONCANONICAL_BUILD
67 ACX_NONCANONICAL_HOST
68 ACX_NONCANONICAL_TARGET
69
70 dnl Autoconf 2.5x and later will set a default program prefix if
71 dnl --target was used, even if it was the same as --host. Disable
72 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
73 dnl to take effect.
74 test "$host_noncanonical" = "$target_noncanonical" &&
75 test "$program_prefix$program_suffix$program_transform_name" = \
76 NONENONEs,x,x, &&
77 program_transform_name=s,y,y,
78
79 AC_CANONICAL_SYSTEM
80 AC_ARG_PROGRAM
81
82 m4_pattern_allow([^AS_FOR_TARGET$])dnl
83 m4_pattern_allow([^AS_FOR_BUILD$])dnl
84
85 # Get 'install' or 'install-sh' and its variants.
86 AC_PROG_INSTALL
87 ACX_PROG_LN
88 AC_PROG_LN_S
89 AC_PROG_SED
90 AC_PROG_AWK
91
92 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
93
94 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
95 # a relative path.
96 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
97 INSTALL="${srcpwd}/install-sh -c"
98 fi
99
100 # Set srcdir to "." if that's what it is.
101 # This is important for multilib support.
102 pwd=`${PWDCMD-pwd}`
103 if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105 fi
106
107 topsrcdir=$srcpwd
108
109 extra_host_args=
110
111 ### To add a new directory to the tree, first choose whether it is a target
112 ### or a host dependent tool. Then put it into the appropriate list
113 ### (library or tools, host or target), doing a dependency sort.
114
115 # Subdirs will be configured in the order listed in build_configdirs,
116 # configdirs, or target_configdirs; see the serialization section below.
117
118 # Dependency sorting is only needed when *configuration* must be done in
119 # a particular order. In all cases a dependency should be specified in
120 # the Makefile, whether or not it's implicitly specified here.
121
122 # Double entries in build_configdirs, configdirs, or target_configdirs may
123 # cause circular dependencies and break everything horribly.
124
125 # these library is used by various programs built for the build
126 # environment
127 #
128 build_libs="build-libiberty"
129
130 # these tools are built for the build environment
131 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
132
133 # these libraries are used by various programs built for the host environment
134 #
135 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber gmp mpfr mpc ppl cloog libelf libiconv"
136
137 # these tools are built for the host environment
138 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
139 # know that we are building the simulator.
140 # binutils, gas and ld appear in that order because it makes sense to run
141 # "make check" in that particular order.
142 # If --enable-gold is used, "gold" may replace "ld".
143 host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools"
144
145 # libgcj represents the runtime libraries only used by gcj.
146 libgcj="target-libffi \
147 target-zlib \
148 target-libjava"
149
150 # these libraries are built for the target environment, and are built after
151 # the host libraries and the host tools (which may be a cross compiler)
152 # Note that libiberty is not a target library.
153 target_libraries="target-libgcc \
154 target-libgloss \
155 target-newlib \
156 target-libgomp \
157 target-libitm \
158 target-libstdc++-v3 \
159 target-libmudflap \
160 target-libssp \
161 target-libquadmath \
162 target-libgfortran \
163 target-boehm-gc \
164 ${libgcj} \
165 target-libobjc \
166 target-libada \
167 target-libgo"
168
169 # these tools are built using the target libraries, and are intended to
170 # run only in the target environment
171 #
172 # note: any program that *uses* libraries that are in the "target_libraries"
173 # list belongs in this list.
174 #
175 target_tools="target-rda"
176
177 ################################################################################
178
179 ## All tools belong in one of the four categories, and are assigned above
180 ## We assign ${configdirs} this way to remove all embedded newlines. This
181 ## is important because configure will choke if they ever get through.
182 ## ${configdirs} is directories we build using the host tools.
183 ## ${target_configdirs} is directories we build using the target tools.
184 configdirs=`echo ${host_libs} ${host_tools}`
185 target_configdirs=`echo ${target_libraries} ${target_tools}`
186 build_configdirs=`echo ${build_libs} ${build_tools}`
187
188 m4_divert_text([PARSE_ARGS],
189 [case $srcdir in
190 *" "*)
191 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
192 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
193 m4_popdef([AS_MESSAGE_LOG_FD])dnl
194 ;;
195 esac
196 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
197 ])
198
199 ################################################################################
200
201 srcname="gnu development package"
202
203 # This gets set non-empty for some net releases of packages.
204 appdirs=""
205
206 # Define is_cross_compiler to save on calls to 'test'.
207 is_cross_compiler=
208 if test x"${host}" = x"${target}" ; then
209 is_cross_compiler=no
210 else
211 is_cross_compiler=yes
212 fi
213
214 # Find the build and target subdir names.
215 GCC_TOPLEV_SUBDIRS
216 # Be sure to cover against remnants of an in-tree build.
217 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
218 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
219 Use a pristine source tree when building in a separate tree])
220 fi
221
222 # Skipdirs are removed silently.
223 skipdirs=
224 # Noconfigdirs are removed loudly.
225 noconfigdirs=""
226
227 use_gnu_ld=
228 # Make sure we don't let GNU ld be added if we didn't want it.
229 if test x$with_gnu_ld = xno ; then
230 use_gnu_ld=no
231 noconfigdirs="$noconfigdirs ld gold"
232 fi
233
234 use_gnu_as=
235 # Make sure we don't let GNU as be added if we didn't want it.
236 if test x$with_gnu_as = xno ; then
237 use_gnu_as=no
238 noconfigdirs="$noconfigdirs gas"
239 fi
240
241 use_included_zlib=
242 # Make sure we don't let ZLIB be added if we didn't want it.
243 if test x$with_system_zlib = xyes ; then
244 use_included_zlib=no
245 noconfigdirs="$noconfigdirs zlib"
246 fi
247
248 # some tools are so dependent upon X11 that if we're not building with X,
249 # it's not even worth trying to configure, much less build, that tool.
250
251 case ${with_x} in
252 yes | "") ;; # the default value for this tree is that X11 is available
253 no)
254 skipdirs="${skipdirs} tk itcl libgui"
255 # We won't be able to build gdbtk without X.
256 enable_gdbtk=no
257 ;;
258 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
259 esac
260
261 # Some are only suitable for cross toolchains.
262 # Remove these if host=target.
263 cross_only="target-libgloss target-newlib target-opcodes"
264
265 case $is_cross_compiler in
266 no) skipdirs="${skipdirs} ${cross_only}" ;;
267 esac
268
269 # If both --with-headers and --with-libs are specified, default to
270 # --without-newlib.
271 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
272 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
273 if test x"${with_newlib}" = x ; then
274 with_newlib=no
275 fi
276 fi
277
278 # Recognize --with-newlib/--without-newlib.
279 case ${with_newlib} in
280 no) skipdirs="${skipdirs} target-newlib" ;;
281 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
282 esac
283
284 # Handle --enable-gold, --enable-ld.
285 # --disable-gold [--enable-ld]
286 # Build only ld. Default option.
287 # --enable-gold [--enable-ld]
288 # Build both gold and ld. Install gold as "ld.gold", install ld
289 # as "ld.bfd" and "ld".
290 # --enable-gold=default [--enable-ld]
291 # Build both gold and ld. Install gold as "ld.gold" and "ld",
292 # install ld as "ld.bfd".
293 # --enable-gold[=default] --disable-ld
294 # Build only gold, which is then installed as both "ld.gold" and "ld".
295 # --enable-gold --enable-ld=default
296 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
297 # and ld.bfd).
298 # In other words, ld is default
299 # --enable-gold=default --enable-ld=default
300 # Error.
301
302 default_ld=
303 AC_ARG_ENABLE(gold,
304 [AS_HELP_STRING([[--enable-gold[=ARG]]],
305 [build gold @<:@ARG={default,yes,no}@:>@])],
306 ENABLE_GOLD=$enableval,
307 ENABLE_GOLD=no)
308 case "${ENABLE_GOLD}" in
309 yes|default)
310 # Check for ELF target.
311 is_elf=no
312 case "${target}" in
313 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
314 | *-*-linux* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
315 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
316 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
317 case "${target}" in
318 *-*-linux*aout* | *-*-linux*oldld*)
319 ;;
320 *)
321 is_elf=yes
322 ;;
323 esac
324 esac
325
326 if test "$is_elf" = "yes"; then
327 # Check for target supported by gold.
328 case "${target}" in
329 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-*)
330 configdirs="$configdirs gold"
331 if test x${ENABLE_GOLD} = xdefault; then
332 default_ld=gold
333 fi
334 ENABLE_GOLD=yes
335 ;;
336 esac
337 fi
338 ;;
339 no)
340 ;;
341 *)
342 AC_MSG_ERROR([invalid --enable-gold argument])
343 ;;
344 esac
345
346 AC_ARG_ENABLE(ld,
347 [AS_HELP_STRING([[--enable-ld[=ARG]]],
348 [build ld @<:@ARG={default,yes,no}@:>@])],
349 ENABLE_LD=$enableval,
350 ENABLE_LD=yes)
351
352 case "${ENABLE_LD}" in
353 default)
354 if test x${default_ld} != x; then
355 AC_MSG_ERROR([either gold or ld can be the default ld])
356 fi
357 ;;
358 yes)
359 ;;
360 no)
361 if test x${ENABLE_GOLD} != xyes; then
362 AC_MSG_WARN([neither ld nor gold are enabled])
363 fi
364 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
365 ;;
366 *)
367 AC_MSG_ERROR([invalid --enable-ld argument])
368 ;;
369 esac
370
371 # Configure extra directories which are host specific
372
373 case "${host}" in
374 *-cygwin*)
375 configdirs="$configdirs libtermcap" ;;
376 esac
377
378 # A target can indicate whether a language isn't supported for some reason.
379 # Only spaces may be used in this macro; not newlines or tabs.
380 unsupported_languages=
381
382 # Remove more programs from consideration, based on the host or
383 # target this usually means that a port of the program doesn't
384 # exist yet.
385
386 case "${host}" in
387 i[[3456789]]86-*-msdosdjgpp*)
388 noconfigdirs="$noconfigdirs tcl tk itcl"
389 ;;
390 esac
391
392
393 AC_ARG_ENABLE(libquadmath,
394 AS_HELP_STRING([--disable-libquadmath],
395 [do not build libquadmath directory]),
396 ENABLE_LIBQUADMATH=$enableval,
397 ENABLE_LIBQUADMATH=yes)
398 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
399 noconfigdirs="$noconfigdirs target-libquadmath"
400 fi
401
402
403 AC_ARG_ENABLE(libquadmath-support,
404 AS_HELP_STRING([--disable-libquadmath-support],
405 [disable libquadmath support for Fortran]),
406 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
407 ENABLE_LIBQUADMATH_SUPPORT=yes)
408 enable_libquadmath_support=
409 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
410 enable_libquadmath_support=no
411 fi
412
413
414 AC_ARG_ENABLE(libada,
415 [AS_HELP_STRING([--enable-libada], [build libada directory])],
416 ENABLE_LIBADA=$enableval,
417 ENABLE_LIBADA=yes)
418 if test "${ENABLE_LIBADA}" != "yes" ; then
419 noconfigdirs="$noconfigdirs gnattools"
420 fi
421
422 AC_ARG_ENABLE(libssp,
423 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
424 ENABLE_LIBSSP=$enableval,
425 ENABLE_LIBSSP=yes)
426
427 # Save it here so that, even in case of --enable-libgcj, if the Java
428 # front-end isn't enabled, we still get libgcj disabled.
429 libgcj_saved=$libgcj
430 case $enable_libgcj in
431 yes)
432 # If we reset it here, it won't get added to noconfigdirs in the
433 # target-specific build rules, so it will be forcibly enabled
434 # (unless the Java language itself isn't enabled).
435 libgcj=
436 ;;
437 no)
438 # Make sure we get it printed in the list of not supported target libs.
439 # Don't disable libffi, though, other languages use it.
440 noconfigdirs="$noconfigdirs `echo ${libgcj} | sed -e 's/target-libffi//'`"
441 # Clear libgcj_saved so that even if java is enabled libffi won't be
442 # built.
443 libgcj_saved=
444 ;;
445 esac
446
447 AC_ARG_ENABLE(static-libjava,
448 [AS_HELP_STRING([[--enable-static-libjava[=ARG]]],
449 [build static libjava @<:@default=no@:>@])],
450 ENABLE_STATIC_LIBJAVA=$enableval,
451 ENABLE_STATIC_LIBJAVA=no)
452 enable_static_libjava=
453 if test "${ENABLE_STATIC_LIBJAVA}" = "yes" ; then
454 enable_static_libjava=yes
455 fi
456
457 if test x$enable_static_libjava != xyes ; then
458 EXTRA_CONFIGARGS_LIBJAVA=--disable-static
459 fi
460 AC_SUBST(EXTRA_CONFIGARGS_LIBJAVA)
461
462 # Disable libmudflap on some systems.
463 if test x$enable_libmudflap = x ; then
464 case "${target}" in
465 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | bfin*-*-uclinux* | *-*-kopensolaris*-gnu)
466 # Enable libmudflap by default in GNU and friends.
467 ;;
468 *-*-freebsd*)
469 # Enable libmudflap by default in FreeBSD.
470 ;;
471 *)
472 # Disable it by default everywhere else.
473 noconfigdirs="$noconfigdirs target-libmudflap"
474 ;;
475 esac
476 fi
477
478 # Disable libgomp on non POSIX hosted systems.
479 if test x$enable_libgomp = x ; then
480 # Enable libgomp by default on hosted POSIX systems.
481 case "${target}" in
482 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
483 ;;
484 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
485 ;;
486 *-*-solaris2* | *-*-hpux11*)
487 ;;
488 *-*-darwin* | *-*-aix*)
489 ;;
490 *)
491 noconfigdirs="$noconfigdirs target-libgomp"
492 ;;
493 esac
494 fi
495
496 # Disable libitm on unsupported systems.
497 if test -d ${srcdir}/libitm; then
498 if test x$enable_libitm = x; then
499 AC_MSG_CHECKING([for libitm support])
500 if (srcdir=${srcdir}/libitm; \
501 . ${srcdir}/configure.tgt; \
502 test -n "$UNSUPPORTED")
503 then
504 AC_MSG_RESULT([no])
505 noconfigdirs="$noconfigdirs target-libitm"
506 else
507 AC_MSG_RESULT([yes])
508 fi
509 fi
510 fi
511
512 # Disable libssp for some systems.
513 case "${target}" in
514 avr-*-*)
515 # No hosted I/O support.
516 noconfigdirs="$noconfigdirs target-libssp"
517 ;;
518 powerpc-*-aix* | rs6000-*-aix*)
519 noconfigdirs="$noconfigdirs target-libssp"
520 ;;
521 rl78-*-*)
522 # libssp uses a misaligned load to trigger a fault, but the RL78
523 # doesn't fault for those - instead, it gives a build-time error
524 # for explicit misaligned loads.
525 noconfigdirs="$noconfigdirs target-libssp"
526 ;;
527 esac
528
529 # Disable libstdc++-v3 for some systems.
530 case "${target}" in
531 *-*-vxworks*)
532 # VxWorks uses the Dinkumware C++ library.
533 noconfigdirs="$noconfigdirs target-libstdc++-v3"
534 ;;
535 arm*-wince-pe*)
536 # the C++ libraries don't build on top of CE's C libraries
537 noconfigdirs="$noconfigdirs target-libstdc++-v3"
538 ;;
539 avr-*-*)
540 noconfigdirs="$noconfigdirs target-libstdc++-v3"
541 ;;
542 esac
543
544 # Disable Fortran for some systems.
545 case "${target}" in
546 mmix-*-*)
547 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
548 unsupported_languages="$unsupported_languages fortran"
549 ;;
550 esac
551
552 # Disable Java if libffi is not supported.
553 case "${target}" in
554 alpha*-*-*)
555 ;;
556 arm*-*-*)
557 ;;
558 cris-*-*)
559 ;;
560 frv-*-*)
561 ;;
562 hppa*-*-linux*)
563 ;;
564 hppa*-*-hpux*)
565 ;;
566 i?86-*-*)
567 ;;
568 ia64*-*-*)
569 ;;
570 m32r*-*-*)
571 ;;
572 m68k-*-*)
573 ;;
574 mips*-*-rtems*)
575 ;;
576 mips*-*-linux*)
577 ;;
578 powerpc*-*-linux*)
579 ;;
580 powerpc-*-darwin*)
581 ;;
582 powerpc-*-aix* | rs6000-*-aix*)
583 ;;
584 powerpc-*-freebsd*)
585 ;;
586 powerpc64-*-freebsd*)
587 ;;
588 powerpc*-*-rtems*)
589 ;;
590 s390-*-* | s390x-*-*)
591 ;;
592 sh-*-* | sh[[34]]*-*-*)
593 ;;
594 sh64-*-* | sh5*-*-*)
595 ;;
596 sparc*-*-*)
597 ;;
598 x86_64-*-*)
599 ;;
600 *-*-*)
601 unsupported_languages="$unsupported_languages java"
602 ;;
603 esac
604
605 # Disable Java, libgcj or related libraries for some systems.
606 case "${target}" in
607 powerpc-*-darwin*)
608 ;;
609 i[[3456789]]86-*-darwin*)
610 ;;
611 x86_64-*-darwin[[912]]*)
612 ;;
613 *-*-darwin*)
614 noconfigdirs="$noconfigdirs ${libgcj}"
615 ;;
616 *-*-netware*)
617 noconfigdirs="$noconfigdirs ${libgcj}"
618 ;;
619 *-*-rtems*)
620 noconfigdirs="$noconfigdirs ${libgcj}"
621 ;;
622 *-*-tpf*)
623 noconfigdirs="$noconfigdirs ${libgcj}"
624 ;;
625 *-*-uclinux*)
626 noconfigdirs="$noconfigdirs ${libgcj}"
627 ;;
628 *-*-vxworks*)
629 noconfigdirs="$noconfigdirs ${libgcj}"
630 ;;
631 alpha*-*-*vms*)
632 noconfigdirs="$noconfigdirs ${libgcj}"
633 ;;
634 arm-wince-pe)
635 noconfigdirs="$noconfigdirs ${libgcj}"
636 ;;
637 arm*-*-symbianelf*)
638 noconfigdirs="$noconfigdirs ${libgcj}"
639 ;;
640 bfin-*-*)
641 noconfigdirs="$noconfigdirs target-boehm-gc"
642 ;;
643 cris-*-* | crisv32-*-*)
644 unsupported_languages="$unsupported_languages java"
645 case "${target}" in
646 *-*-linux*)
647 ;;
648 *) # See PR46792 regarding target-libffi.
649 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
650 esac
651 ;;
652 hppa*64*-*-linux*)
653 # In this case, it's because the hppa64-linux target is for
654 # the kernel only at this point and has no libc, and thus no
655 # headers, crt*.o, etc., all of which are needed by these.
656 unsupported_languages="$unsupported_languages java"
657 ;;
658 hppa*64*-*-hpux*)
659 noconfigdirs="$noconfigdirs ${libgcj}"
660 ;;
661 hppa*-hp-hpux11*)
662 ;;
663 hppa*-*-hpux*)
664 # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
665 # build on HP-UX 10.20.
666 noconfigdirs="$noconfigdirs ${libgcj}"
667 ;;
668 ia64*-*-*vms*)
669 noconfigdirs="$noconfigdirs ${libgcj}"
670 ;;
671 i[[3456789]]86-w64-mingw*)
672 noconfigdirs="$noconfigdirs ${libgcj}"
673 ;;
674 i[[3456789]]86-*-mingw*)
675 noconfigdirs="$noconfigdirs ${libgcj}"
676 ;;
677 x86_64-*-mingw*)
678 noconfigdirs="$noconfigdirs ${libgcj}"
679 ;;
680 mmix-*-*)
681 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc"
682 ;;
683 powerpc-*-aix*)
684 # copied from rs6000-*-* entry
685 noconfigdirs="$noconfigdirs ${libgcj}"
686 ;;
687 rs6000-*-aix*)
688 noconfigdirs="$noconfigdirs ${libgcj}"
689 ;;
690 *-*-lynxos*)
691 noconfigdirs="$noconfigdirs ${libgcj}"
692 ;;
693 esac
694
695 # Default libgloss CPU subdirectory.
696 libgloss_dir="$target_cpu"
697
698 case "${target}" in
699 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
700 libgloss_dir=wince
701 ;;
702 arm*-*-*)
703 libgloss_dir=arm
704 ;;
705 cris-*-* | crisv32-*-*)
706 libgloss_dir=cris
707 ;;
708 hppa*-*-*)
709 libgloss_dir=pa
710 ;;
711 i[[3456789]]86-*-*)
712 libgloss_dir=i386
713 ;;
714 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
715 libgloss_dir=m68hc11
716 ;;
717 m68*-*-* | fido-*-*)
718 libgloss_dir=m68k
719 ;;
720 mips*-*-*)
721 libgloss_dir=mips
722 ;;
723 powerpc*-*-*)
724 libgloss_dir=rs6000
725 ;;
726 sparc*-*-*)
727 libgloss_dir=sparc
728 ;;
729 esac
730
731 # Disable newlib and libgloss for various target OSes.
732 case "${target}" in
733 alpha*-dec-osf*)
734 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
735 ;;
736 i[[3456789]]86-*-linux*)
737 # This section makes it possible to build newlib natively on linux.
738 # If we are using a cross compiler then don't configure newlib.
739 if test x${is_cross_compiler} != xno ; then
740 noconfigdirs="$noconfigdirs target-newlib"
741 fi
742 noconfigdirs="$noconfigdirs target-libgloss"
743 # If we are not using a cross compiler, do configure newlib.
744 # Note however, that newlib will only be configured in this situation
745 # if the --with-newlib option has been given, because otherwise
746 # 'target-newlib' will appear in skipdirs.
747 ;;
748 i[[3456789]]86-*-rdos*)
749 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
750 ;;
751 sh*-*-pe|mips*-*-pe|arm-wince-pe)
752 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
753 ;;
754 sparc-*-sunos4*)
755 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
756 ;;
757 *-*-aix*)
758 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
759 ;;
760 *-*-beos*)
761 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
762 ;;
763 *-*-chorusos)
764 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
765 ;;
766 *-*-dragonfly*)
767 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
768 ;;
769 *-*-freebsd*)
770 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
771 ;;
772 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
773 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
774 ;;
775 *-*-lynxos*)
776 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
777 ;;
778 *-*-mingw*)
779 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
780 ;;
781 *-*-netbsd*)
782 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
783 ;;
784 *-*-netware*)
785 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
786 ;;
787 *-*-tpf*)
788 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
789 ;;
790 *-*-uclinux*)
791 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
792 ;;
793 *-*-vxworks*)
794 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
795 ;;
796 esac
797
798 case "${target}" in
799 *-*-chorusos)
800 ;;
801 powerpc-*-darwin*)
802 noconfigdirs="$noconfigdirs ld gas gdb gprof"
803 noconfigdirs="$noconfigdirs sim target-rda"
804 ;;
805 i[[3456789]]86-*-darwin*)
806 noconfigdirs="$noconfigdirs ld gprof"
807 noconfigdirs="$noconfigdirs sim target-rda"
808 ;;
809 x86_64-*-darwin[[912]]*)
810 noconfigdirs="$noconfigdirs ld gas gprof"
811 noconfigdirs="$noconfigdirs sim target-rda"
812 ;;
813 *-*-darwin*)
814 noconfigdirs="$noconfigdirs ld gas gdb gprof"
815 noconfigdirs="$noconfigdirs sim target-rda"
816 ;;
817 *-*-dragonfly*)
818 ;;
819 *-*-freebsd*)
820 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
821 && test -f /usr/local/include/gmp.h; then
822 with_gmp=/usr/local
823 fi
824 ;;
825 *-*-kaos*)
826 # Remove unsupported stuff on all kaOS configurations.
827 noconfigdirs="$noconfigdirs target-libgloss"
828 ;;
829 *-*-netbsd*)
830 ;;
831 *-*-netware*)
832 ;;
833 *-*-rtems*)
834 noconfigdirs="$noconfigdirs target-libgloss"
835 ;;
836 # The tpf target doesn't support gdb yet.
837 *-*-tpf*)
838 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
839 ;;
840 *-*-uclinux*)
841 noconfigdirs="$noconfigdirs target-rda"
842 ;;
843 *-*-vxworks*)
844 ;;
845 alpha*-dec-osf*)
846 # ld works, but does not support shared libraries.
847 # gas doesn't generate exception information.
848 noconfigdirs="$noconfigdirs gas ld"
849 ;;
850 alpha*-*-*vms*)
851 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
852 ;;
853 alpha*-*-*)
854 # newlib is not 64 bit ready
855 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
856 ;;
857 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
858 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
859 ;;
860 arc-*-*)
861 noconfigdirs="$noconfigdirs target-libgloss"
862 ;;
863 arm-*-pe*)
864 noconfigdirs="$noconfigdirs target-libgloss"
865 ;;
866 arm-*-riscix*)
867 noconfigdirs="$noconfigdirs ld target-libgloss"
868 ;;
869 c4x-*-* | tic4x-*-*)
870 noconfigdirs="$noconfigdirs target-libgloss"
871 ;;
872 tic54x-*-*)
873 noconfigdirs="$noconfigdirs target-libgloss gdb"
874 ;;
875 cr16-*-*)
876 noconfigdirs="$noconfigdirs gdb"
877 ;;
878 d10v-*-*)
879 noconfigdirs="$noconfigdirs target-libgloss"
880 ;;
881 d30v-*-*)
882 noconfigdirs="$noconfigdirs gdb"
883 ;;
884 fr30-*-elf*)
885 noconfigdirs="$noconfigdirs gdb"
886 ;;
887 moxie-*-*)
888 noconfigdirs="$noconfigdirs gprof"
889 ;;
890 h8300*-*-*)
891 noconfigdirs="$noconfigdirs target-libgloss"
892 ;;
893 h8500-*-*)
894 noconfigdirs="$noconfigdirs target-libgloss"
895 ;;
896 hppa1.1-*-osf* | hppa1.1-*-bsd* )
897 ;;
898 hppa*64*-*-linux*)
899 ;;
900 hppa*-*-linux*)
901 ;;
902 hppa*-*-*elf* | \
903 hppa*-*-lites* | \
904 hppa*-*-openbsd* | \
905 hppa*64*-*-*)
906 ;;
907 hppa*-hp-hpux11*)
908 noconfigdirs="$noconfigdirs ld"
909 ;;
910 hppa*-*-pro*)
911 ;;
912 hppa*-*-*)
913 noconfigdirs="$noconfigdirs ld"
914 ;;
915 i960-*-*)
916 noconfigdirs="$noconfigdirs gdb"
917 ;;
918 ia64*-*-elf*)
919 # No gdb support yet.
920 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
921 ;;
922 ia64*-**-hpux*)
923 # No ld support yet.
924 noconfigdirs="$noconfigdirs libgui itcl ld"
925 ;;
926 ia64*-*-*vms*)
927 noconfigdirs="$noconfigdirs libgui itcl"
928 ;;
929 i[[3456789]]86-w64-mingw*)
930 ;;
931 i[[3456789]]86-*-mingw*)
932 target_configdirs="$target_configdirs target-winsup"
933 ;;
934 *-*-cygwin*)
935 target_configdirs="$target_configdirs target-libtermcap target-winsup"
936 noconfigdirs="$noconfigdirs target-libgloss"
937 # always build newlib if winsup directory is present.
938 if test -d "$srcdir/winsup/cygwin"; then
939 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
940 elif test -d "$srcdir/newlib"; then
941 echo "Warning: winsup/cygwin is missing so newlib can't be built."
942 fi
943 ;;
944 i[[3456789]]86-*-pe)
945 noconfigdirs="$noconfigdirs target-libgloss"
946 ;;
947 i[[3456789]]86-*-sco3.2v5*)
948 # The linker does not yet know about weak symbols in COFF,
949 # and is not configured to handle mixed ELF and COFF.
950 noconfigdirs="$noconfigdirs ld target-libgloss"
951 ;;
952 i[[3456789]]86-*-sco*)
953 noconfigdirs="$noconfigdirs gprof target-libgloss"
954 ;;
955 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
956 noconfigdirs="$noconfigdirs target-libgloss"
957 ;;
958 i[[3456789]]86-*-sysv4*)
959 noconfigdirs="$noconfigdirs target-libgloss"
960 ;;
961 i[[3456789]]86-*-beos*)
962 noconfigdirs="$noconfigdirs gdb"
963 ;;
964 i[[3456789]]86-*-rdos*)
965 noconfigdirs="$noconfigdirs gdb"
966 ;;
967 mmix-*-*)
968 noconfigdirs="$noconfigdirs gdb"
969 ;;
970 mt-*-*)
971 noconfigdirs="$noconfigdirs sim"
972 ;;
973 powerpc-*-aix*)
974 # copied from rs6000-*-* entry
975 noconfigdirs="$noconfigdirs gprof"
976 ;;
977 powerpc*-*-winnt* | powerpc*-*-pe*)
978 target_configdirs="$target_configdirs target-winsup"
979 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
980 # always build newlib.
981 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
982 ;;
983 # This is temporary until we can link against shared libraries
984 powerpcle-*-solaris*)
985 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
986 ;;
987 powerpc-*-beos*)
988 noconfigdirs="$noconfigdirs gdb"
989 ;;
990 rs6000-*-lynxos*)
991 noconfigdirs="$noconfigdirs gprof"
992 ;;
993 rs6000-*-aix*)
994 noconfigdirs="$noconfigdirs gprof"
995 ;;
996 rs6000-*-*)
997 noconfigdirs="$noconfigdirs gprof"
998 ;;
999 m68k-apollo-*)
1000 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1001 ;;
1002 microblaze*)
1003 noconfigdirs="$noconfigdirs gprof"
1004 ;;
1005 mips*-sde-elf*)
1006 if test x$with_newlib = xyes; then
1007 noconfigdirs="$noconfigdirs gprof"
1008 fi
1009 ;;
1010 mips*-*-irix5*)
1011 noconfigdirs="$noconfigdirs gprof target-libgloss"
1012 ;;
1013 mips*-*-irix6*)
1014 noconfigdirs="$noconfigdirs gprof target-libgloss"
1015 ;;
1016 mips*-*-bsd*)
1017 noconfigdirs="$noconfigdirs gprof target-libgloss"
1018 ;;
1019 mips*-*-linux*)
1020 ;;
1021 mips*-*-*)
1022 noconfigdirs="$noconfigdirs gprof"
1023 ;;
1024 sh-*-* | sh64-*-*)
1025 case "${target}" in
1026 sh*-*-elf)
1027 ;;
1028 *)
1029 noconfigdirs="$noconfigdirs target-libgloss" ;;
1030 esac
1031 ;;
1032 sparc-*-sunos4*)
1033 if test x${is_cross_compiler} = xno ; then
1034 use_gnu_ld=no
1035 fi
1036 ;;
1037 tic6x-*-*)
1038 noconfigdirs="$noconfigdirs sim"
1039 ;;
1040 tilepro-*-* | tilegx-*-*)
1041 noconfigdirs="$noconfigdirs sim"
1042 ;;
1043 v810-*-*)
1044 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1045 ;;
1046 vax-*-*)
1047 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1048 ;;
1049 esac
1050
1051 # If we aren't building newlib, then don't build libgloss, since libgloss
1052 # depends upon some newlib header files.
1053 case "${noconfigdirs}" in
1054 *target-libgloss*) ;;
1055 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1056 esac
1057
1058 # Work in distributions that contain no compiler tools, like Autoconf.
1059 host_makefile_frag=/dev/null
1060 if test -d ${srcdir}/config ; then
1061 case "${host}" in
1062 i[[3456789]]86-*-msdosdjgpp*)
1063 host_makefile_frag="config/mh-djgpp"
1064 ;;
1065 *-cygwin*)
1066 ACX_CHECK_CYGWIN_CAT_WORKS
1067 host_makefile_frag="config/mh-cygwin"
1068 ;;
1069 *-mingw*)
1070 host_makefile_frag="config/mh-mingw"
1071 ;;
1072 *-interix*)
1073 host_makefile_frag="config/mh-interix"
1074 ;;
1075 hppa*-hp-hpux10*)
1076 host_makefile_frag="config/mh-pa-hpux10"
1077 ;;
1078 hppa*-hp-hpux*)
1079 host_makefile_frag="config/mh-pa"
1080 ;;
1081 hppa*-*)
1082 host_makefile_frag="config/mh-pa"
1083 ;;
1084 *-*-darwin*)
1085 host_makefile_frag="config/mh-darwin"
1086 ;;
1087 powerpc-*-aix*)
1088 host_makefile_frag="config/mh-ppc-aix"
1089 ;;
1090 rs6000-*-aix*)
1091 host_makefile_frag="config/mh-ppc-aix"
1092 ;;
1093 esac
1094 fi
1095
1096 if test "${build}" != "${host}" ; then
1097 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1098 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1099 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1100 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1101 GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1102 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1103 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1104 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1105 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1106 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1107 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1108 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1109 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1110 else
1111 AR_FOR_BUILD="\$(AR)"
1112 AS_FOR_BUILD="\$(AS)"
1113 CC_FOR_BUILD="\$(CC)"
1114 CXX_FOR_BUILD="\$(CXX)"
1115 GCJ_FOR_BUILD="\$(GCJ)"
1116 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1117 GOC_FOR_BUILD="\$(GOC)"
1118 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1119 LD_FOR_BUILD="\$(LD)"
1120 NM_FOR_BUILD="\$(NM)"
1121 RANLIB_FOR_BUILD="\$(RANLIB)"
1122 WINDRES_FOR_BUILD="\$(WINDRES)"
1123 WINDMC_FOR_BUILD="\$(WINDMC)"
1124 fi
1125
1126 AC_PROG_CC
1127 AC_PROG_CXX
1128
1129 # We must set the default linker to the linker used by gcc for the correct
1130 # operation of libtool. If LD is not defined and we are using gcc, try to
1131 # set the LD default to the ld used by gcc.
1132 if test -z "$LD"; then
1133 if test "$GCC" = yes; then
1134 case $build in
1135 *-*-mingw*)
1136 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1137 *)
1138 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1139 esac
1140 case $gcc_prog_ld in
1141 # Accept absolute paths.
1142 [[\\/]* | [A-Za-z]:[\\/]*)]
1143 LD="$gcc_prog_ld" ;;
1144 esac
1145 fi
1146 fi
1147
1148 ACX_PROG_GNAT
1149 ACX_PROG_CMP_IGNORE_INITIAL
1150
1151 AC_ARG_ENABLE([bootstrap],
1152 [AS_HELP_STRING([--enable-bootstrap],
1153 [enable bootstrapping @<:@yes if native build@:>@])],,
1154 enable_bootstrap=default)
1155
1156 # Issue errors and warnings for invalid/strange bootstrap combinations.
1157 if test -r $srcdir/gcc/configure; then
1158 have_compiler=yes
1159 else
1160 have_compiler=no
1161 fi
1162
1163 case "$have_compiler:$host:$target:$enable_bootstrap" in
1164 *:*:*:no) ;;
1165
1166 # Default behavior. Enable bootstrap if we have a compiler
1167 # and we are in a native configuration.
1168 yes:$build:$build:default)
1169 enable_bootstrap=yes ;;
1170
1171 *:*:*:default)
1172 enable_bootstrap=no ;;
1173
1174 # We have a compiler and we are in a native configuration, bootstrap is ok
1175 yes:$build:$build:yes)
1176 ;;
1177
1178 # Other configurations, but we have a compiler. Assume the user knows
1179 # what he's doing.
1180 yes:*:*:yes)
1181 AC_MSG_WARN([trying to bootstrap a cross compiler])
1182 ;;
1183
1184 # No compiler: if they passed --enable-bootstrap explicitly, fail
1185 no:*:*:yes)
1186 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1187
1188 # Fail if wrong command line
1189 *)
1190 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1191 ;;
1192 esac
1193
1194 # See if we are building gcc with C++.
1195 AC_ARG_ENABLE(build-with-cxx,
1196 [AS_HELP_STRING([--enable-build-with-cxx],
1197 [build with C++ compiler instead of C compiler])],
1198 ENABLE_BUILD_WITH_CXX=$enableval,
1199 ENABLE_BUILD_WITH_CXX=no)
1200
1201 # Build stage1 with C and build stages 2 and 3 with C++.
1202 AC_ARG_ENABLE(build-poststage1-with-cxx,
1203 [AS_HELP_STRING([--enable-build-poststage1-with-cxx],
1204 [build stages 2 and 3 with C++, not C])],
1205 ENABLE_BUILD_POSTSTAGE1_WITH_CXX=$enableval,
1206 ENABLE_BUILD_POSTSTAGE1_WITH_CXX=yes)
1207
1208 # Used for setting $lt_cv_objdir
1209 _LT_CHECK_OBJDIR
1210
1211 # Check for GMP, MPFR and MPC
1212 gmplibs="-lmpc -lmpfr -lgmp"
1213 gmpinc=
1214 have_gmp=no
1215
1216 # Specify a location for mpc
1217 # check for this first so it ends up on the link line before mpfr.
1218 AC_ARG_WITH(mpc,
1219 [AS_HELP_STRING([--with-mpc=PATH],
1220 [specify prefix directory for installed MPC package.
1221 Equivalent to --with-mpc-include=PATH/include
1222 plus --with-mpc-lib=PATH/lib])])
1223 AC_ARG_WITH(mpc-include,
1224 [AS_HELP_STRING([--with-mpc-include=PATH],
1225 [specify directory for installed MPC include files])])
1226 AC_ARG_WITH(mpc-lib,
1227 [AS_HELP_STRING([--with-mpc-lib=PATH],
1228 [specify directory for the installed MPC library])])
1229
1230 if test "x$with_mpc" != x; then
1231 gmplibs="-L$with_mpc/lib $gmplibs"
1232 gmpinc="-I$with_mpc/include $gmpinc"
1233 fi
1234 if test "x$with_mpc_include" != x; then
1235 gmpinc="-I$with_mpc_include $gmpinc"
1236 fi
1237 if test "x$with_mpc_lib" != x; then
1238 gmplibs="-L$with_mpc_lib $gmplibs"
1239 fi
1240 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1241 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1242 gmpinc='-I$$s/mpc/src '"$gmpinc"
1243 # Do not test the mpc version. Assume that it is sufficient, since
1244 # it is in the source tree, and the library has not been built yet
1245 # but it would be included on the link line in the version check below
1246 # hence making the test fail.
1247 have_gmp=yes
1248 fi
1249
1250 # Specify a location for mpfr
1251 # check for this first so it ends up on the link line before gmp.
1252 AC_ARG_WITH(mpfr-dir,
1253 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1254 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1255 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1256
1257 AC_ARG_WITH(mpfr,
1258 [AS_HELP_STRING([--with-mpfr=PATH],
1259 [specify prefix directory for installed MPFR package.
1260 Equivalent to --with-mpfr-include=PATH/include
1261 plus --with-mpfr-lib=PATH/lib])])
1262 AC_ARG_WITH(mpfr-include,
1263 [AS_HELP_STRING([--with-mpfr-include=PATH],
1264 [specify directory for installed MPFR include files])])
1265 AC_ARG_WITH(mpfr-lib,
1266 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1267 [specify directory for the installed MPFR library])])
1268
1269 if test "x$with_mpfr" != x; then
1270 gmplibs="-L$with_mpfr/lib $gmplibs"
1271 gmpinc="-I$with_mpfr/include $gmpinc"
1272 fi
1273 if test "x$with_mpfr_include" != x; then
1274 gmpinc="-I$with_mpfr_include $gmpinc"
1275 fi
1276 if test "x$with_mpfr_lib" != x; then
1277 gmplibs="-L$with_mpfr_lib $gmplibs"
1278 fi
1279 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1280 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
1281 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1282 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
1283 # Do not test the mpfr version. Assume that it is sufficient, since
1284 # it is in the source tree, and the library has not been built yet
1285 # but it would be included on the link line in the version check below
1286 # hence making the test fail.
1287 have_gmp=yes
1288 fi
1289
1290 # Specify a location for gmp
1291 AC_ARG_WITH(gmp-dir,
1292 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1293 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1294 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1295
1296 AC_ARG_WITH(gmp,
1297 [AS_HELP_STRING([--with-gmp=PATH],
1298 [specify prefix directory for the installed GMP package.
1299 Equivalent to --with-gmp-include=PATH/include
1300 plus --with-gmp-lib=PATH/lib])])
1301 AC_ARG_WITH(gmp-include,
1302 [AS_HELP_STRING([--with-gmp-include=PATH],
1303 [specify directory for installed GMP include files])])
1304 AC_ARG_WITH(gmp-lib,
1305 [AS_HELP_STRING([--with-gmp-lib=PATH],
1306 [specify directory for the installed GMP library])])
1307
1308
1309 if test "x$with_gmp" != x; then
1310 gmplibs="-L$with_gmp/lib $gmplibs"
1311 gmpinc="-I$with_gmp/include $gmpinc"
1312 fi
1313 if test "x$with_gmp_include" != x; then
1314 gmpinc="-I$with_gmp_include $gmpinc"
1315 fi
1316 if test "x$with_gmp_lib" != x; then
1317 gmplibs="-L$with_gmp_lib $gmplibs"
1318 fi
1319 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1320 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1321 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1322 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1323 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1324 # Do not test the gmp version. Assume that it is sufficient, since
1325 # it is in the source tree, and the library has not been built yet
1326 # but it would be included on the link line in the version check below
1327 # hence making the test fail.
1328 have_gmp=yes
1329 fi
1330
1331 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1332 have_gmp=yes
1333 saved_CFLAGS="$CFLAGS"
1334 CFLAGS="$CFLAGS $gmpinc"
1335 # Check for the recommended and required versions of GMP.
1336 AC_MSG_CHECKING([for the correct version of gmp.h])
1337 AC_TRY_COMPILE([#include "gmp.h"],[
1338 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1339 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1340 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,0)
1341 choke me
1342 #endif
1343 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1344 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1345 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1346 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1347 choke me
1348 #endif
1349 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1350 [AC_MSG_RESULT([no]); have_gmp=no])
1351
1352 # If we have GMP, check the MPFR version.
1353 if test x"$have_gmp" = xyes; then
1354 # Check for the recommended and required versions of MPFR.
1355 AC_MSG_CHECKING([for the correct version of mpfr.h])
1356 AC_TRY_COMPILE([#include <gmp.h>
1357 #include <mpfr.h>],[
1358 #if MPFR_VERSION < MPFR_VERSION_NUM(2,3,1)
1359 choke me
1360 #endif
1361 ], [AC_TRY_COMPILE([#include <gmp.h>
1362 #include <mpfr.h>],[
1363 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1364 choke me
1365 #endif
1366 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1367 [AC_MSG_RESULT([no]); have_gmp=no])
1368 fi
1369
1370 # Check for the MPC header version.
1371 if test x"$have_gmp" = xyes ; then
1372 # Check for the recommended and required versions of MPC.
1373 AC_MSG_CHECKING([for the correct version of mpc.h])
1374 AC_TRY_COMPILE([#include <mpc.h>],[
1375 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1376 choke me
1377 #endif
1378 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1379 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1380 choke me
1381 #endif
1382 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1383 [AC_MSG_RESULT([no]); have_gmp=no])
1384 fi
1385
1386 # Now check the MPFR library.
1387 if test x"$have_gmp" = xyes; then
1388 saved_LIBS="$LIBS"
1389 LIBS="$LIBS $gmplibs"
1390 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1391 AC_TRY_LINK([#include <mpc.h>],[
1392 mpfr_t n;
1393 mpfr_t x;
1394 mpc_t c;
1395 int t;
1396 mpfr_init (n);
1397 mpfr_init (x);
1398 mpfr_atan2 (n, n, x, GMP_RNDN);
1399 mpfr_erfc (n, x, GMP_RNDN);
1400 mpfr_subnormalize (x, t, GMP_RNDN);
1401 mpfr_clear(n);
1402 mpfr_clear(x);
1403 mpc_init2 (c, 53);
1404 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1405 mpc_cosh (c, c, MPC_RNDNN);
1406 mpc_pow (c, c, c, MPC_RNDNN);
1407 mpc_acosh (c, c, MPC_RNDNN);
1408 mpc_clear (c);
1409 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1410 LIBS="$saved_LIBS"
1411 fi
1412
1413 CFLAGS="$saved_CFLAGS"
1414
1415 # The library versions listed in the error message below should match
1416 # the HARD-minimums enforced above.
1417 if test x$have_gmp != xyes; then
1418 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+.
1419 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1420 their locations. Source code for these libraries can be found at
1421 their respective hosting sites as well as at
1422 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1423 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1424 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1425 make sure that you have installed both the libraries and the header
1426 files. They may be located in separate packages.])
1427 fi
1428 fi
1429
1430 # Flags needed for both GMP, MPFR and/or MPC.
1431 AC_SUBST(gmplibs)
1432 AC_SUBST(gmpinc)
1433 AC_SUBST(extra_mpfr_configure_flags)
1434 AC_SUBST(extra_mpc_gmp_configure_flags)
1435 AC_SUBST(extra_mpc_mpfr_configure_flags)
1436
1437 # Allow host libstdc++ to be specified for static linking with PPL.
1438 AC_ARG_WITH(host-libstdcxx,
1439 [AS_HELP_STRING([--with-host-libstdcxx=L],
1440 [use linker arguments L to link with libstdc++
1441 when linking with PPL])])
1442
1443 case $with_host_libstdcxx in
1444 no|yes)
1445 AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
1446 ;;
1447 esac
1448
1449 # Linker flags to use for stage1 or when not boostrapping.
1450 AC_ARG_WITH(stage1-ldflags,
1451 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1452 [if test "$withval" = "no" -o "$withval" = "yes"; then
1453 stage1_ldflags=
1454 else
1455 stage1_ldflags=$withval
1456 fi],
1457 [stage1_ldflags=])
1458 AC_SUBST(stage1_ldflags)
1459
1460 # Libraries to use for stage1 or when not bootstrapping.
1461 AC_ARG_WITH(stage1-libs,
1462 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1463 [if test "$withval" = "no" -o "$withval" = "yes"; then
1464 stage1_libs=
1465 else
1466 stage1_libs=$withval
1467 fi],
1468 [stage1_libs=$with_host_libstdcxx])
1469 AC_SUBST(stage1_libs)
1470
1471 # Libraries to use for stage2 and later builds. This defaults to the
1472 # argument passed to --with-host-libstdcxx.
1473 AC_ARG_WITH(boot-libs,
1474 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1475 [if test "$withval" = "no" -o "$withval" = "yes"; then
1476 poststage1_libs=
1477 else
1478 poststage1_libs=$withval
1479 fi],
1480 [poststage1_libs=$with_host_libstdcxx])
1481 AC_SUBST(poststage1_libs)
1482
1483 # Linker flags to use for stage2 and later builds.
1484 AC_ARG_WITH(boot-ldflags,
1485 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1486 [linker flags for stage2 and later])],
1487 [if test "$withval" = "no" -o "$withval" = "yes"; then
1488 poststage1_ldflags=
1489 else
1490 poststage1_ldflags=$withval
1491 fi],
1492 [poststage1_ldflags=
1493 # In stages 2 and 3, default to linking libstdc++ and libgcc
1494 # statically. But if the user explicitly specified the libraries to
1495 # use, trust that they are doing what they want.
1496 if test "$poststage1_libs" = ""; then
1497 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1498 fi])
1499 AC_SUBST(poststage1_ldflags)
1500
1501 # Check for PPL
1502 ppllibs=
1503 pplinc=
1504 pwllib=
1505
1506 AC_ARG_WITH(ppl,
1507 [AS_HELP_STRING([--with-ppl=PATH],
1508 [specify prefix directory for the installed PPL package.
1509 Equivalent to --with-ppl-include=PATH/include
1510 plus --with-ppl-lib=PATH/lib])])
1511 AC_ARG_WITH(ppl-include,
1512 [AS_HELP_STRING([--with-ppl-include=PATH],
1513 [specify directory for installed PPL include files])])
1514 AC_ARG_WITH(ppl-lib,
1515 [AS_HELP_STRING([--with-ppl-lib=PATH],
1516 [specify directory for the installed PPL library])])
1517
1518 AC_ARG_ENABLE(ppl-version-check,
1519 [AS_HELP_STRING([--disable-ppl-version-check],
1520 [disable check for PPL version])])
1521
1522 case $with_ppl in
1523 yes | no | "")
1524 ;;
1525 *)
1526 ppllibs="-L$with_ppl/lib"
1527 pplinc="-I$with_ppl/include $pplinc"
1528 if test -d "$with_ppl/lib" && test -d "$with_ppl/include"; then
1529 with_ppl=yes
1530 else
1531 AC_MSG_ERROR([cannot find directories "$with_ppl/lib" or "$with_ppl/include"])
1532 fi
1533 ;;
1534 esac
1535
1536 if test x"$with_ppl_include" != x; then
1537 pplinc="-I$with_ppl_include $pplinc"
1538 with_ppl=yes
1539 fi
1540
1541 if test "x$with_ppl_lib" != x; then
1542 ppllibs="-L$with_ppl_lib"
1543 with_ppl=yes
1544 fi
1545
1546 if test x"$with_ppl$with_ppl_include$with_ppl_lib" = x && test -d ${srcdir}/ppl; then
1547 if test x"$enable_watchdog" = xyes; then
1548 pwllib="-lpwl"
1549 fi
1550 ppllibs='-L$$r/$(HOST_SUBDIR)/ppl/interfaces/C/'"$lt_cv_objdir"' -L$$r/$(HOST_SUBDIR)/ppl/src/'"$lt_cv_objdir"
1551 pplinc='-I$$r/$(HOST_SUBDIR)/ppl/src -I$$r/$(HOST_SUBDIR)/ppl/interfaces/C '
1552 enable_ppl_version_check=no
1553 with_ppl=yes
1554 fi
1555
1556 if test "x$with_ppl" != xno; then
1557 if test "x$pwllib" = x; then
1558 saved_LIBS="$LIBS"
1559 LIBS="$LIBS $ppllibs -lstdc++ -lm"
1560 AC_CHECK_LIB(pwl, PWL_handle_timeout, [pwllib="-lpwl"])
1561 LIBS="$saved_LIBS"
1562 fi
1563
1564 ppllibs="$ppllibs -lppl_c -lppl $pwllib -lgmpxx"
1565
1566 if test "$enable_ppl_version_check" != no; then
1567 saved_CFLAGS="$CFLAGS"
1568 CFLAGS="$CFLAGS $pplinc $gmpinc"
1569 AC_MSG_CHECKING([for version 0.11 (revision 0 or later) of PPL])
1570 AC_TRY_COMPILE([#include "ppl_c.h"],[
1571 #if PPL_VERSION_MAJOR != 0 || PPL_VERSION_MINOR < 11
1572 choke me
1573 #endif
1574 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); ppllibs= ; pplinc= ; with_ppl=no ])
1575 CFLAGS="$saved_CFLAGS"
1576 fi
1577 fi
1578
1579 # Flags needed for PPL
1580 AC_SUBST(ppllibs)
1581 AC_SUBST(pplinc)
1582
1583
1584 # Check for CLOOG
1585
1586 dnl Provide configure switches and initialize clooginc & clooglibs
1587 dnl with user input.
1588 CLOOG_INIT_FLAGS
1589 if test "x$with_ppl" = "xno"; then
1590 dnl Only execute fail-action, if CLooG has been requested.
1591 CLOOG_REQUESTED([graphite_requested=yes], [graphite_requested=no])
1592 if test "${graphite_requested}" = yes; then
1593 AC_MSG_ERROR([Unable to find a usable PPL. See config.log for details.])
1594 fi
1595 with_cloog=no
1596 fi
1597 if test "x${with_cloog}" = x && test "x${with_cloog_include}" = x \
1598 && test "x${with_cloog_lib}" = x && test -d ${srcdir}/cloog; then
1599 clooglibs='-L$$r/$(HOST_SUBDIR)/cloog/'"$lt_cv_objdir"' '
1600 clooginc='-I$$r/$(HOST_SUBDIR)/cloog/include -I$$s/cloog/include '
1601 fi
1602 if test "x$with_cloog" != "xno"; then
1603 dnl The minimal version of CLooG required for Graphite.
1604 dnl
1605 dnl If we use CLooG-Legacy, the provided version information is
1606 dnl ignored.
1607 CLOOG_CHECK_VERSION(0,16,1)
1608
1609 dnl Only execute fail-action, if CLooG has been requested.
1610 CLOOG_IF_FAILED([
1611 AC_MSG_ERROR([Unable to find a usable CLooG. See config.log for details.])])
1612 fi
1613
1614 # Check for LTO support.
1615 AC_ARG_ENABLE(lto,
1616 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1617 enable_lto=$enableval,
1618 enable_lto=yes; default_enable_lto=yes)
1619
1620 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1621 build_lto_plugin=yes
1622 ],[if test x"$default_enable_lto" = x"yes" ; then
1623 case $target in
1624 *-apple-darwin9* | *-cygwin* | *-mingw*) ;;
1625 # On other non-ELF platforms, LTO has yet to be validated.
1626 *) enable_lto=no ;;
1627 esac
1628 else
1629 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1630 # It would also be nice to check the binutils support, but we don't
1631 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1632 # warn during gcc/ subconfigure; unless you're bootstrapping with
1633 # -flto it won't be needed until after installation anyway.
1634 case $target in
1635 *-cygwin* | *-mingw* | *-apple-darwin*) ;;
1636 *) if test x"$enable_lto" = x"yes"; then
1637 AC_MSG_ERROR([LTO support is not enabled for this target.])
1638 fi
1639 ;;
1640 esac
1641 fi
1642 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1643 # Build it unless LTO was explicitly disabled.
1644 case $target in
1645 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1646 *) ;;
1647 esac
1648 ])
1649
1650
1651 # By default, C is the only stage 1 language.
1652 stage1_languages=,c,
1653
1654 # Target libraries that we bootstrap.
1655 bootstrap_target_libs=,target-libgcc,
1656
1657 # Figure out what language subdirectories are present.
1658 # Look if the user specified --enable-languages="..."; if not, use
1659 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1660 # go away some day.
1661 # NB: embedded tabs in this IF block -- do not untabify
1662 if test -d ${srcdir}/gcc; then
1663 if test x"${enable_languages+set}" != xset; then
1664 if test x"${LANGUAGES+set}" = xset; then
1665 enable_languages="${LANGUAGES}"
1666 echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1667 else
1668 enable_languages=all
1669 fi
1670 else
1671 if test x"${enable_languages}" = x ||
1672 test x"${enable_languages}" = xyes;
1673 then
1674 echo configure.in: --enable-languages needs at least one language argument 1>&2
1675 exit 1
1676 fi
1677 fi
1678 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1679
1680 # 'f95' is the old name for the 'fortran' language. We issue a warning
1681 # and make the substitution.
1682 case ,${enable_languages}, in
1683 *,f95,*)
1684 echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1685 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1686 ;;
1687 esac
1688
1689 # If bootstrapping, then using --enable-build-with-cxx or
1690 # --enable-build-poststage1-with-cxx requires enabling C++.
1691 case ",$enable_languages,:,$ENABLE_BUILD_WITH_CXX,$ENABLE_BUILD_POSTSTAGE1_WITH_CXX,:$enable_bootstrap" in
1692 *,c++,*:*:*) ;;
1693 *:*,yes,*:yes)
1694 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1695 enable_languages="${enable_languages},c++"
1696 else
1697 AC_MSG_ERROR([bootstrapping with --enable-build-with-cxx or --enable-build-poststage1-with-cxx requires c++ sources])
1698 fi
1699 ;;
1700 esac
1701
1702 # First scan to see if an enabled language requires some other language.
1703 # We assume that a given config-lang.in will list all the language
1704 # front ends it requires, even if some are required indirectly.
1705 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1706 case ${lang_frag} in
1707 ..) ;;
1708 # The odd quoting in the next line works around
1709 # an apparent bug in bash 1.12 on linux.
1710 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1711 *)
1712 # From the config-lang.in, get $language, $lang_requires, and
1713 # $lang_requires_boot_languages.
1714 language=
1715 lang_requires=
1716 lang_requires_boot_languages=
1717 . ${lang_frag}
1718 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1719 case ,${enable_languages}, in
1720 *,$other,*) ;;
1721 *,all,*) ;;
1722 *,$language,*)
1723 echo " \`$other' language required by \`$language'; enabling" 1>&2
1724 enable_languages="${enable_languages},${other}"
1725 ;;
1726 esac
1727 done
1728 for other in ${lang_requires_boot_languages} ; do
1729 if test "$other" != "c"; then
1730 case ,${enable_stage1_languages}, in
1731 *,$other,*) ;;
1732 *,all,*) ;;
1733 *)
1734 case ,${enable_languages}, in
1735 *,$language,*)
1736 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1737 enable_stage1_languages="$enable_stage1_languages,${other}"
1738 ;;
1739 esac
1740 ;;
1741 esac
1742 fi
1743 done
1744 ;;
1745 esac
1746 done
1747
1748 new_enable_languages=,c,
1749
1750 # If LTO is enabled, add the LTO front end.
1751 extra_host_libiberty_configure_flags=
1752 if test "$enable_lto" = "yes" ; then
1753 case ,${enable_languages}, in
1754 *,lto,*) ;;
1755 *) enable_languages="${enable_languages},lto" ;;
1756 esac
1757 if test "${build_lto_plugin}" = "yes" ; then
1758 configdirs="$configdirs lto-plugin"
1759 extra_host_libiberty_configure_flags=--enable-shared
1760 fi
1761 fi
1762 AC_SUBST(extra_host_libiberty_configure_flags)
1763
1764 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1765 potential_languages=,c,
1766
1767 enabled_target_libs=
1768 disabled_target_libs=
1769
1770 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1771 case ${lang_frag} in
1772 ..) ;;
1773 # The odd quoting in the next line works around
1774 # an apparent bug in bash 1.12 on linux.
1775 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1776 *)
1777 # From the config-lang.in, get $language, $target_libs,
1778 # $lang_dirs, $boot_language, and $build_by_default
1779 language=
1780 target_libs=
1781 lang_dirs=
1782 subdir_requires=
1783 boot_language=no
1784 build_by_default=yes
1785 . ${lang_frag}
1786 if test x${language} = x; then
1787 echo "${lang_frag} doesn't set \$language." 1>&2
1788 exit 1
1789 fi
1790
1791 if test "$language" = "c++"; then
1792 if test "$ENABLE_BUILD_WITH_CXX" = "yes" \
1793 || test "$ENABLE_BUILD_POSTSTAGE1_WITH_CXX" = "yes"; then
1794 boot_language=yes
1795 fi
1796 fi
1797
1798 case ,${enable_languages}, in
1799 *,${language},*)
1800 # Language was explicitly selected; include it.
1801 add_this_lang=yes
1802 ;;
1803 *,all,*)
1804 # 'all' was selected, select it if it is a default language
1805 add_this_lang=${build_by_default}
1806 ;;
1807 *)
1808 add_this_lang=no
1809 ;;
1810 esac
1811
1812 # Disable languages that need other directories if these aren't available.
1813 for i in $subdir_requires; do
1814 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1815 case ,${enable_languages}, in
1816 *,${language},*)
1817 # Specifically requested language; tell them.
1818 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1819 ;;
1820 *)
1821 # Silently disable.
1822 add_this_lang=unsupported
1823 ;;
1824 esac
1825 done
1826
1827 # Disable Ada if no preexisting GNAT is available.
1828 case ,${enable_languages},:${language}:${have_gnat} in
1829 *,${language},*:ada:no)
1830 # Specifically requested language; tell them.
1831 AC_MSG_ERROR([GNAT is required to build $language])
1832 ;;
1833 *:ada:no)
1834 # Silently disable.
1835 add_this_lang=unsupported
1836 ;;
1837 esac
1838
1839 # Disable a language that is unsupported by the target.
1840 case " $unsupported_languages " in
1841 *" $language "*)
1842 add_this_lang=unsupported
1843 ;;
1844 esac
1845
1846 case $add_this_lang in
1847 unsupported)
1848 # Remove language-dependent dirs.
1849 disabled_target_libs="$disabled_target_libs $target_libs"
1850 noconfigdirs="$noconfigdirs $lang_dirs"
1851 ;;
1852 no)
1853 # Remove language-dependent dirs; still show language as supported.
1854 disabled_target_libs="$disabled_target_libs $target_libs"
1855 noconfigdirs="$noconfigdirs $lang_dirs"
1856 potential_languages="${potential_languages}${language},"
1857 ;;
1858 yes)
1859 new_enable_languages="${new_enable_languages}${language},"
1860 potential_languages="${potential_languages}${language},"
1861 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1862 enabled_target_libs="$enabled_target_libs $target_libs"
1863 case "${boot_language}:,$enable_stage1_languages," in
1864 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
1865 # Add to (comma-separated) list of stage 1 languages.
1866 case ",$stage1_languages," in
1867 *,$language,* | ,yes, | ,all,) ;;
1868 *) stage1_languages="${stage1_languages}${language}," ;;
1869 esac
1870 # We need to bootstrap any supporting libraries.
1871 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
1872 ;;
1873 esac
1874 ;;
1875 esac
1876 ;;
1877 esac
1878 done
1879
1880 # Add target libraries which are only needed for disabled languages
1881 # to noconfigdirs.
1882 if test -n "$disabled_target_libs"; then
1883 for dir in $disabled_target_libs; do
1884 case " $enabled_target_libs " in
1885 *" ${dir} "*) ;;
1886 *) noconfigdirs="$noconfigdirs $dir" ;;
1887 esac
1888 done
1889 fi
1890
1891 AC_ARG_ENABLE(stage1-languages,
1892 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
1893 [choose additional languages to build during
1894 stage1. Mostly useful for compiler development])],
1895 [case ,${enable_stage1_languages}, in
1896 ,no,|,,)
1897 # Set it to something that will have no effect in the loop below
1898 enable_stage1_languages=c ;;
1899 ,yes,)
1900 enable_stage1_languages=`echo $new_enable_languages | \
1901 sed -e "s/^,//" -e "s/,$//" ` ;;
1902 *,all,*)
1903 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
1904 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
1905 esac
1906
1907 # Add "good" languages from enable_stage1_languages to stage1_languages,
1908 # while "bad" languages go in missing_languages. Leave no duplicates.
1909 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
1910 case $potential_languages in
1911 *,$i,*)
1912 case $stage1_languages in
1913 *,$i,*) ;;
1914 *) stage1_languages="$stage1_languages$i," ;;
1915 esac ;;
1916 *)
1917 case $missing_languages in
1918 *,$i,*) ;;
1919 *) missing_languages="$missing_languages$i," ;;
1920 esac ;;
1921 esac
1922 done])
1923
1924 # Remove leading/trailing commas that were added for simplicity
1925 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
1926 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1927 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
1928 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
1929
1930 if test "x$missing_languages" != x; then
1931 AC_MSG_ERROR([
1932 The following requested languages could not be built: ${missing_languages}
1933 Supported languages are: ${potential_languages}])
1934 fi
1935 if test "x$new_enable_languages" != "x$enable_languages"; then
1936 echo The following languages will be built: ${new_enable_languages}
1937 enable_languages="$new_enable_languages"
1938 fi
1939
1940 AC_SUBST(stage1_languages)
1941 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
1942 fi
1943
1944 # Handle --disable-<component> generically.
1945 for dir in $configdirs $build_configdirs $target_configdirs ; do
1946 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1947 varname=`echo $dirname | sed -e s/+/_/g`
1948 if eval test x\${enable_${varname}} "=" xno ; then
1949 noconfigdirs="$noconfigdirs $dir"
1950 fi
1951 done
1952
1953 # Check for Boehm's garbage collector
1954 AC_ARG_ENABLE(objc-gc,
1955 [AS_HELP_STRING([--enable-objc-gc],
1956 [enable use of Boehm's garbage collector with the
1957 GNU Objective-C runtime])],
1958 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1959 *,objc,*:*:yes:*target-boehm-gc*)
1960 AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1961 ;;
1962 esac])
1963
1964 # Make sure we only build Boehm's garbage collector if required.
1965 case ,${enable_languages},:${enable_objc_gc} in
1966 *,objc,*:yes)
1967 # Keep target-boehm-gc if requested for Objective-C.
1968 ;;
1969 *)
1970 # Otherwise remove target-boehm-gc depending on target-libjava.
1971 if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1972 noconfigdirs="$noconfigdirs target-boehm-gc"
1973 fi
1974 ;;
1975 esac
1976
1977 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1978 # $build_configdirs and $target_configdirs.
1979 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1980
1981 notsupp=""
1982 for dir in . $skipdirs $noconfigdirs ; do
1983 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1984 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1985 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1986 if test -r $srcdir/$dirname/configure ; then
1987 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1988 true
1989 else
1990 notsupp="$notsupp $dir"
1991 fi
1992 fi
1993 fi
1994 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1995 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1996 if test -r $srcdir/$dirname/configure ; then
1997 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1998 true
1999 else
2000 notsupp="$notsupp $dir"
2001 fi
2002 fi
2003 fi
2004 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2005 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2006 if test -r $srcdir/$dirname/configure ; then
2007 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2008 true
2009 else
2010 notsupp="$notsupp $dir"
2011 fi
2012 fi
2013 fi
2014 done
2015
2016 # Quietly strip out all directories which aren't configurable in this tree.
2017 # This relies on all configurable subdirectories being autoconfiscated, which
2018 # is now the case.
2019 build_configdirs_all="$build_configdirs"
2020 build_configdirs=
2021 for i in ${build_configdirs_all} ; do
2022 j=`echo $i | sed -e s/build-//g`
2023 if test -f ${srcdir}/$j/configure ; then
2024 build_configdirs="${build_configdirs} $i"
2025 fi
2026 done
2027
2028 configdirs_all="$configdirs"
2029 configdirs=
2030 for i in ${configdirs_all} ; do
2031 if test -f ${srcdir}/$i/configure ; then
2032 configdirs="${configdirs} $i"
2033 fi
2034 done
2035
2036 target_configdirs_all="$target_configdirs"
2037 target_configdirs=
2038 for i in ${target_configdirs_all} ; do
2039 j=`echo $i | sed -e s/target-//g`
2040 if test -f ${srcdir}/$j/configure ; then
2041 target_configdirs="${target_configdirs} $i"
2042 fi
2043 done
2044
2045 # Produce a warning message for the subdirs we can't configure.
2046 # This isn't especially interesting in the Cygnus tree, but in the individual
2047 # FSF releases, it's important to let people know when their machine isn't
2048 # supported by the one or two programs in a package.
2049
2050 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2051 # If $appdirs is non-empty, at least one of those directories must still
2052 # be configured, or we error out. (E.g., if the gas release supports a
2053 # specified target in some subdirs but not the gas subdir, we shouldn't
2054 # pretend that all is well.)
2055 if test -n "$appdirs" ; then
2056 for dir in $appdirs ; do
2057 if test -r $dir/Makefile.in ; then
2058 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2059 appdirs=""
2060 break
2061 fi
2062 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2063 appdirs=""
2064 break
2065 fi
2066 fi
2067 done
2068 if test -n "$appdirs" ; then
2069 echo "*** This configuration is not supported by this package." 1>&2
2070 exit 1
2071 fi
2072 fi
2073 # Okay, some application will build, or we don't care to check. Still
2074 # notify of subdirs not getting built.
2075 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2076 echo " ${notsupp}" 1>&2
2077 echo " (Any other directories should still work fine.)" 1>&2
2078 fi
2079
2080 case "$host" in
2081 *msdosdjgpp*)
2082 enable_gdbtk=no ;;
2083 esac
2084
2085 # To find our prefix, in gcc_cv_tool_prefix.
2086 ACX_TOOL_DIRS
2087
2088 copy_dirs=
2089
2090 AC_ARG_WITH([build-sysroot],
2091 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2092 [use sysroot as the system root during the build])],
2093 [if test x"$withval" != x ; then
2094 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2095 fi],
2096 [SYSROOT_CFLAGS_FOR_TARGET=])
2097 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2098
2099 AC_ARG_WITH([debug-prefix-map],
2100 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2101 [map A to B, C to D ... in debug information])],
2102 [if test x"$withval" != x; then
2103 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2104 for debug_map in $withval; do
2105 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2106 done
2107 fi],
2108 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2109 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2110
2111 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2112 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2113 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2114 # We want to ensure that TARGET libraries (which we know are built with
2115 # gcc) are built with "-O2 -g", so include those options when setting
2116 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2117 if test "x$CFLAGS_FOR_TARGET" = x; then
2118 CFLAGS_FOR_TARGET=$CFLAGS
2119 case " $CFLAGS " in
2120 *" -O2 "*) ;;
2121 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS" ;;
2122 esac
2123 case " $CFLAGS " in
2124 *" -g "* | *" -g3 "*) ;;
2125 *) CFLAGS_FOR_TARGET="-g $CFLAGS" ;;
2126 esac
2127 fi
2128 AC_SUBST(CFLAGS_FOR_TARGET)
2129
2130 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2131 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2132 case " $CXXFLAGS " in
2133 *" -O2 "*) ;;
2134 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS" ;;
2135 esac
2136 case " $CXXFLAGS " in
2137 *" -g "* | *" -g3 "*) ;;
2138 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS" ;;
2139 esac
2140 fi
2141 AC_SUBST(CXXFLAGS_FOR_TARGET)
2142
2143 AC_SUBST(LDFLAGS_FOR_TARGET)
2144
2145 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2146 # the named directory are copied to $(tooldir)/sys-include.
2147 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2148 if test x${is_cross_compiler} = xno ; then
2149 echo 1>&2 '***' --with-headers is only supported when cross compiling
2150 exit 1
2151 fi
2152 if test x"${with_headers}" != xyes ; then
2153 x=${gcc_cv_tool_prefix}
2154 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2155 fi
2156 fi
2157
2158 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2159 # the name directories are copied to $(tooldir)/lib. Multiple directories
2160 # are permitted.
2161 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2162 if test x${is_cross_compiler} = xno ; then
2163 echo 1>&2 '***' --with-libs is only supported when cross compiling
2164 exit 1
2165 fi
2166 if test x"${with_libs}" != xyes ; then
2167 # Copy the libraries in reverse order, so that files in the first named
2168 # library override files in subsequent libraries.
2169 x=${gcc_cv_tool_prefix}
2170 for l in ${with_libs}; do
2171 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2172 done
2173 fi
2174 fi
2175
2176 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2177 #
2178 # This is done by determining whether or not the appropriate directory
2179 # is available, and by checking whether or not specific configurations
2180 # have requested that this magic not happen.
2181 #
2182 # The command line options always override the explicit settings in
2183 # configure.in, and the settings in configure.in override this magic.
2184 #
2185 # If the default for a toolchain is to use GNU as and ld, and you don't
2186 # want to do that, then you should use the --without-gnu-as and
2187 # --without-gnu-ld options for the configure script. Similarly, if
2188 # the default is to use the included zlib and you don't want to do that,
2189 # you should use the --with-system-zlib option for the configure script.
2190
2191 if test x${use_gnu_as} = x &&
2192 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2193 with_gnu_as=yes
2194 extra_host_args="$extra_host_args --with-gnu-as"
2195 fi
2196
2197 if test x${use_gnu_ld} = x &&
2198 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2199 with_gnu_ld=yes
2200 extra_host_args="$extra_host_args --with-gnu-ld"
2201 fi
2202
2203 if test x${use_included_zlib} = x &&
2204 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2205 :
2206 else
2207 with_system_zlib=yes
2208 extra_host_args="$extra_host_args --with-system-zlib"
2209 fi
2210
2211 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2212 # can detect this case.
2213
2214 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2215 with_newlib=yes
2216 extra_host_args="$extra_host_args --with-newlib"
2217 fi
2218
2219 # Handle ${copy_dirs}
2220 set fnord ${copy_dirs}
2221 shift
2222 while test $# != 0 ; do
2223 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2224 :
2225 else
2226 echo Copying $1 to $2
2227
2228 # Use the install script to create the directory and all required
2229 # parent directories.
2230 if test -d $2 ; then
2231 :
2232 else
2233 echo >config.temp
2234 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2235 fi
2236
2237 # Copy the directory, assuming we have tar.
2238 # FIXME: Should we use B in the second tar? Not all systems support it.
2239 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2240
2241 # It is the responsibility of the user to correctly adjust all
2242 # symlinks. If somebody can figure out how to handle them correctly
2243 # here, feel free to add the code.
2244
2245 echo $1 > $2/COPIED
2246 fi
2247 shift; shift
2248 done
2249
2250 # Determine a target-dependent exec_prefix that the installed
2251 # gcc will search in. Keep this list sorted by triplet, with
2252 # the *-*-osname triplets last.
2253 md_exec_prefix=
2254 case "${target}" in
2255 i[[34567]]86-pc-msdosdjgpp*)
2256 md_exec_prefix=/dev/env/DJDIR/bin
2257 ;;
2258 *-*-hpux* | \
2259 *-*-nto-qnx* | \
2260 *-*-solaris2*)
2261 md_exec_prefix=/usr/ccs/bin
2262 ;;
2263 esac
2264
2265 extra_arflags_for_target=
2266 extra_nmflags_for_target=
2267 extra_ranlibflags_for_target=
2268 target_makefile_frag=/dev/null
2269 case "${target}" in
2270 spu-*-*)
2271 target_makefile_frag="config/mt-spu"
2272 ;;
2273 mips*-sde-elf*)
2274 target_makefile_frag="config/mt-sde"
2275 ;;
2276 mipsisa*-*-elfoabi*)
2277 target_makefile_frag="config/mt-mips-elfoabi"
2278 ;;
2279 mips*-*-*linux* | mips*-*-gnu*)
2280 target_makefile_frag="config/mt-mips-gnu"
2281 ;;
2282 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2283 target_makefile_frag="config/mt-gnu"
2284 ;;
2285 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2286 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2287 # commands to handle both 32-bit and 64-bit objects. These flags are
2288 # harmless if we're using GNU nm or ar.
2289 extra_arflags_for_target=" -X32_64"
2290 extra_nmflags_for_target=" -B -X32_64"
2291 ;;
2292 *-*-darwin[[3-9]]*)
2293 # ranlib before Darwin10 requires the -c flag to look at common symbols.
2294 extra_ranlibflags_for_target=" -c"
2295 ;;
2296 esac
2297
2298 alphaieee_frag=/dev/null
2299 case $target in
2300 alpha*-*-*)
2301 # This just makes sure to use the -mieee option to build target libs.
2302 # This should probably be set individually by each library.
2303 alphaieee_frag="config/mt-alphaieee"
2304 ;;
2305 esac
2306
2307 # If --enable-target-optspace always use -Os instead of -O2 to build
2308 # the target libraries, similarly if it is not specified, use -Os
2309 # on selected platforms.
2310 ospace_frag=/dev/null
2311 case "${enable_target_optspace}:${target}" in
2312 yes:*)
2313 ospace_frag="config/mt-ospace"
2314 ;;
2315 :d30v-*)
2316 ospace_frag="config/mt-d30v"
2317 ;;
2318 :m32r-* | :d10v-* | :fr30-*)
2319 ospace_frag="config/mt-ospace"
2320 ;;
2321 no:* | :*)
2322 ;;
2323 *)
2324 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2325 ;;
2326 esac
2327
2328 # Some systems (e.g., one of the i386-aix systems the gas testers are
2329 # using) don't handle "\$" correctly, so don't use it here.
2330 tooldir='${exec_prefix}'/${target_noncanonical}
2331 build_tooldir=${tooldir}
2332
2333 # Create a .gdbinit file which runs the one in srcdir
2334 # and tells GDB to look there for source files.
2335
2336 if test -r ${srcdir}/.gdbinit ; then
2337 case ${srcdir} in
2338 .) ;;
2339 *) cat > ./.gdbinit <<EOF
2340 # ${NO_EDIT}
2341 dir ${srcdir}
2342 dir .
2343 source ${srcdir}/.gdbinit
2344 EOF
2345 ;;
2346 esac
2347 fi
2348
2349 # Make sure that the compiler is able to generate an executable. If it
2350 # can't, we are probably in trouble. We don't care whether we can run the
2351 # executable--we might be using a cross compiler--we only care whether it
2352 # can be created. At this point the main configure script has set CC.
2353 we_are_ok=no
2354 echo "int main () { return 0; }" > conftest.c
2355 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2356 if test $? = 0 ; then
2357 if test -s conftest || test -s conftest.exe ; then
2358 we_are_ok=yes
2359 fi
2360 fi
2361 case $we_are_ok in
2362 no)
2363 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2364 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2365 rm -f conftest*
2366 exit 1
2367 ;;
2368 esac
2369 rm -f conftest*
2370
2371 # Decide which environment variable is used to find dynamic libraries.
2372 case "${host}" in
2373 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2374 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2375 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2376 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2377 esac
2378
2379 # On systems where the dynamic library environment variable is PATH,
2380 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2381 # built executables to PATH.
2382 if test "$RPATH_ENVVAR" = PATH; then
2383 GCC_SHLIB_SUBDIR=/shlib
2384 else
2385 GCC_SHLIB_SUBDIR=
2386 fi
2387
2388 # Record target_configdirs and the configure arguments for target and
2389 # build configuration in Makefile.
2390 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2391 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2392
2393 # If we are building libgomp, bootstrap it.
2394 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2395 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2396 fi
2397
2398 # Determine whether gdb needs tk/tcl or not.
2399 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2400 # and in that case we want gdb to be built without tk. Ugh!
2401 # In fact I believe gdb is the *only* package directly dependent on tk,
2402 # so we should be able to put the 'maybe's in unconditionally and
2403 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2404 # 100% sure that that's safe though.
2405
2406 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2407 case "$enable_gdbtk" in
2408 no)
2409 GDB_TK="" ;;
2410 yes)
2411 GDB_TK="${gdb_tk}" ;;
2412 *)
2413 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2414 # distro. Eventually someone will fix this and move Insight, nee
2415 # gdbtk to a separate directory.
2416 if test -d ${srcdir}/gdb/gdbtk ; then
2417 GDB_TK="${gdb_tk}"
2418 else
2419 GDB_TK=""
2420 fi
2421 ;;
2422 esac
2423 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2424 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2425
2426 # Strip out unwanted targets.
2427
2428 # While at that, we remove Makefiles if we were started for recursive
2429 # configuration, so that the top-level Makefile reconfigures them,
2430 # like we used to do when configure itself was recursive.
2431
2432 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2433 # but now we're fixing up the Makefile ourselves with the additional
2434 # commands passed to AC_CONFIG_FILES. Use separate variables
2435 # extrasub-{build,host,target} not because there is any reason to split
2436 # the substitutions up that way, but only to remain below the limit of
2437 # 99 commands in a script, for HP-UX sed.
2438 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2439
2440 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2441 yes:yes:*\ gold\ *:*,c++,*) ;;
2442 yes:yes:*\ gold\ *:*)
2443 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2444 ;;
2445 esac
2446
2447 # Adjust the toplevel makefile according to whether bootstrap was selected.
2448 case $enable_bootstrap in
2449 yes)
2450 bootstrap_suffix=bootstrap
2451 BUILD_CONFIG=bootstrap-debug
2452 ;;
2453 no)
2454 bootstrap_suffix=no-bootstrap
2455 BUILD_CONFIG=
2456 ;;
2457 esac
2458
2459 AC_MSG_CHECKING(for default BUILD_CONFIG)
2460
2461 AC_ARG_WITH([build-config],
2462 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2463 [use config/NAME.mk build configuration])],
2464 [case $with_build_config in
2465 yes) with_build_config= ;;
2466 no) with_build_config= BUILD_CONFIG= ;;
2467 esac])
2468
2469 if test "x${with_build_config}" != x; then
2470 BUILD_CONFIG=$with_build_config
2471 else
2472 case $BUILD_CONFIG in
2473 bootstrap-debug)
2474 if echo "int f (void) { return 0; }" > conftest.c &&
2475 ${CC} -c conftest.c &&
2476 mv conftest.o conftest.o.g0 &&
2477 ${CC} -c -g conftest.c &&
2478 mv conftest.o conftest.o.g &&
2479 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2480 :
2481 else
2482 BUILD_CONFIG=
2483 fi
2484 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2485 ;;
2486 esac
2487 fi
2488 AC_MSG_RESULT($BUILD_CONFIG)
2489 AC_SUBST(BUILD_CONFIG)
2490
2491 extrasub_build=
2492 for module in ${build_configdirs} ; do
2493 if test -z "${no_recursion}" \
2494 && test -f ${build_subdir}/${module}/Makefile; then
2495 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2496 rm -f ${build_subdir}/${module}/Makefile
2497 fi
2498 extrasub_build="$extrasub_build
2499 /^@if build-$module\$/d
2500 /^@endif build-$module\$/d
2501 /^@if build-$module-$bootstrap_suffix\$/d
2502 /^@endif build-$module-$bootstrap_suffix\$/d"
2503 done
2504 extrasub_host=
2505 for module in ${configdirs} ; do
2506 if test -z "${no_recursion}"; then
2507 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2508 if test -f ${file}; then
2509 echo 1>&2 "*** removing ${file} to force reconfigure"
2510 rm -f ${file}
2511 fi
2512 done
2513 fi
2514 extrasub_host="$extrasub_host
2515 /^@if $module\$/d
2516 /^@endif $module\$/d
2517 /^@if $module-$bootstrap_suffix\$/d
2518 /^@endif $module-$bootstrap_suffix\$/d"
2519 done
2520 extrasub_target=
2521 for module in ${target_configdirs} ; do
2522 if test -z "${no_recursion}" \
2523 && test -f ${target_subdir}/${module}/Makefile; then
2524 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2525 rm -f ${target_subdir}/${module}/Makefile
2526 fi
2527
2528 # We only bootstrap target libraries listed in bootstrap_target_libs.
2529 case $bootstrap_target_libs in
2530 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2531 *) target_bootstrap_suffix=no-bootstrap ;;
2532 esac
2533
2534 extrasub_target="$extrasub_target
2535 /^@if target-$module\$/d
2536 /^@endif target-$module\$/d
2537 /^@if target-$module-$target_bootstrap_suffix\$/d
2538 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2539 done
2540
2541 # Do the final fixup along with target modules.
2542 extrasub_target="$extrasub_target
2543 /^@if /,/^@endif /d"
2544
2545 # Create the serialization dependencies. This uses a temporary file.
2546
2547 AC_ARG_ENABLE([serial-configure],
2548 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2549 [force sequential configuration of
2550 sub-packages for the host, target or build
2551 machine, or all sub-packages])])
2552
2553 case ${enable_serial_configure} in
2554 yes)
2555 enable_serial_build_configure=yes
2556 enable_serial_host_configure=yes
2557 enable_serial_target_configure=yes
2558 ;;
2559 esac
2560
2561 # These force 'configure's to be done one at a time, to avoid problems
2562 # with contention over a shared config.cache.
2563 rm -f serdep.tmp
2564 echo '# serdep.tmp' > serdep.tmp
2565 olditem=
2566 test "x${enable_serial_build_configure}" = xyes &&
2567 for item in ${build_configdirs} ; do
2568 case ${olditem} in
2569 "") ;;
2570 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2571 esac
2572 olditem=${item}
2573 done
2574 olditem=
2575 test "x${enable_serial_host_configure}" = xyes &&
2576 for item in ${configdirs} ; do
2577 case ${olditem} in
2578 "") ;;
2579 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2580 esac
2581 olditem=${item}
2582 done
2583 olditem=
2584 test "x${enable_serial_target_configure}" = xyes &&
2585 for item in ${target_configdirs} ; do
2586 case ${olditem} in
2587 "") ;;
2588 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2589 esac
2590 olditem=${item}
2591 done
2592 serialization_dependencies=serdep.tmp
2593 AC_SUBST_FILE(serialization_dependencies)
2594
2595 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2596 # target, nonopt, and variable assignments. These are the ones we
2597 # might not want to pass down to subconfigures. The exception being
2598 # --cache-file=/dev/null, which is used to turn off the use of cache
2599 # files altogether, and which should be passed on to subconfigures.
2600 # Also strip program-prefix, program-suffix, and program-transform-name,
2601 # so that we can pass down a consistent program-transform-name.
2602 baseargs=
2603 tbaseargs=
2604 keep_next=no
2605 skip_next=no
2606 eval "set -- $ac_configure_args"
2607 for ac_arg
2608 do
2609 if test X"$skip_next" = X"yes"; then
2610 skip_next=no
2611 continue
2612 fi
2613 if test X"$keep_next" = X"yes"; then
2614 case $ac_arg in
2615 *\'*)
2616 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2617 esac
2618 baseargs="$baseargs '$ac_arg'"
2619 tbaseargs="$tbaseargs '$ac_arg'"
2620 keep_next=no
2621 continue
2622 fi
2623
2624 # Handle separated arguments. Based on the logic generated by
2625 # autoconf 2.59.
2626 case $ac_arg in
2627 *=* | --config-cache | -C | -disable-* | --disable-* \
2628 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2629 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2630 | -with-* | --with-* | -without-* | --without-* | --x)
2631 separate_arg=no
2632 ;;
2633 -*)
2634 separate_arg=yes
2635 ;;
2636 *)
2637 separate_arg=no
2638 ;;
2639 esac
2640
2641 skip_targ=no
2642 case $ac_arg in
2643 changequote(,)
2644 --with-* | --without-*)
2645 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2646
2647 case $libopt in
2648 *[-_]include)
2649 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2650 ;;
2651 *[-_]lib)
2652 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2653 ;;
2654 *)
2655 lib=$libopt
2656 ;;
2657 esac
2658 changequote([,])
2659
2660 case $lib in
2661 mpc | mpfr | gmp | ppl | cloog)
2662 # If we're processing --with-$lib, --with-$lib-include or
2663 # --with-$lib-lib, for one of the libs above, and target is
2664 # different from host, don't pass the current argument to any
2665 # target library's configure.
2666 if test x$is_cross_compiler = xyes; then
2667 skip_targ=yes
2668 fi
2669 ;;
2670 esac
2671 ;;
2672 esac
2673
2674 case "$ac_arg" in
2675 --cache-file=/dev/null | \
2676 -cache-file=/dev/null )
2677 # Handled here to avoid the test to skip args below.
2678 baseargs="$baseargs '$ac_arg'"
2679 tbaseargs="$tbaseargs '$ac_arg'"
2680 # Assert: $separate_arg should always be no.
2681 keep_next=$separate_arg
2682 ;;
2683 --no*)
2684 continue
2685 ;;
2686 --c* | \
2687 --sr* | \
2688 --ho* | \
2689 --bu* | \
2690 --t* | \
2691 --program-* | \
2692 -cache_file* | \
2693 -srcdir* | \
2694 -host* | \
2695 -build* | \
2696 -target* | \
2697 -program-prefix* | \
2698 -program-suffix* | \
2699 -program-transform-name* )
2700 skip_next=$separate_arg
2701 continue
2702 ;;
2703 -*)
2704 # An option. Add it.
2705 case $ac_arg in
2706 *\'*)
2707 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2708 esac
2709 baseargs="$baseargs '$ac_arg'"
2710 if test X"$skip_targ" = Xno; then
2711 tbaseargs="$tbaseargs '$ac_arg'"
2712 fi
2713 keep_next=$separate_arg
2714 ;;
2715 *)
2716 # Either a variable assignment, or a nonopt (triplet). Don't
2717 # pass it down; let the Makefile handle this.
2718 continue
2719 ;;
2720 esac
2721 done
2722 # Remove the initial space we just introduced and, as these will be
2723 # expanded by make, quote '$'.
2724 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2725
2726 # Add in --program-transform-name, after --program-prefix and
2727 # --program-suffix have been applied to it. Autoconf has already
2728 # doubled dollar signs and backslashes in program_transform_name; we want
2729 # the backslashes un-doubled, and then the entire thing wrapped in single
2730 # quotes, because this will be expanded first by make and then by the shell.
2731 # Also, because we want to override the logic in subdir configure scripts to
2732 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2733 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2734 ${program_transform_name}
2735 EOF_SED
2736 gcc_transform_name=`cat conftestsed.out`
2737 rm -f conftestsed.out
2738 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2739 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
2740 if test "$silent" = yes; then
2741 baseargs="$baseargs --silent"
2742 tbaseargs="$tbaseargs --silent"
2743 fi
2744 baseargs="$baseargs --disable-option-checking"
2745 tbaseargs="$tbaseargs --disable-option-checking"
2746
2747 # Record and document user additions to sub configure arguments.
2748 AC_ARG_VAR([build_configargs],
2749 [additional configure arguments for build directories])
2750 AC_ARG_VAR([host_configargs],
2751 [additional configure arguments for host directories])
2752 AC_ARG_VAR([target_configargs],
2753 [additional configure arguments for target directories])
2754
2755 # For the build-side libraries, we just need to pretend we're native,
2756 # and not use the same cache file. Multilibs are neither needed nor
2757 # desired.
2758 build_configargs="$build_configargs --cache-file=../config.cache ${baseargs}"
2759
2760 # For host modules, accept cache file option, or specification as blank.
2761 case "${cache_file}" in
2762 "") # empty
2763 cache_file_option="" ;;
2764 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2765 cache_file_option="--cache-file=${cache_file}" ;;
2766 *) # relative path
2767 cache_file_option="--cache-file=../${cache_file}" ;;
2768 esac
2769
2770 # Host dirs don't like to share a cache file either, horribly enough.
2771 # This seems to be due to autoconf 2.5x stupidity.
2772 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
2773
2774 target_configargs="$target_configargs ${tbaseargs}"
2775
2776 # Passing a --with-cross-host argument lets the target libraries know
2777 # whether they are being built with a cross-compiler or being built
2778 # native. However, it would be better to use other mechanisms to make the
2779 # sorts of decisions they want to make on this basis. Please consider
2780 # this option to be deprecated. FIXME.
2781 if test x${is_cross_compiler} = xyes ; then
2782 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
2783 fi
2784
2785 # Default to --enable-multilib.
2786 if test x${enable_multilib} = x ; then
2787 target_configargs="--enable-multilib ${target_configargs}"
2788 fi
2789
2790 # Pass --with-newlib if appropriate. Note that target_configdirs has
2791 # changed from the earlier setting of with_newlib.
2792 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2793 target_configargs="--with-newlib ${target_configargs}"
2794 fi
2795
2796 # Different target subdirs use different values of certain variables
2797 # (notably CXX). Worse, multilibs use *lots* of different values.
2798 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2799 # it doesn't automatically accept command-line overrides of them.
2800 # This means it's not safe for target subdirs to share a cache file,
2801 # which is disgusting, but there you have it. Hopefully this can be
2802 # fixed in future. It's still worthwhile to use a cache file for each
2803 # directory. I think.
2804
2805 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2806 # We need to pass --target, as newer autoconf's requires consistency
2807 # for target_alias and gcc doesn't manage it consistently.
2808 target_configargs="--cache-file=./config.cache ${target_configargs}"
2809
2810 FLAGS_FOR_TARGET=
2811 case " $target_configdirs " in
2812 *" newlib "*)
2813 case " $target_configargs " in
2814 *" --with-newlib "*)
2815 case "$target" in
2816 *-cygwin*)
2817 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 $$s/winsup/w32api/include'
2818 ;;
2819 esac
2820
2821 # If we're not building GCC, don't discard standard headers.
2822 if test -d ${srcdir}/gcc; then
2823 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2824
2825 if test "${build}" != "${host}"; then
2826 # On Canadian crosses, CC_FOR_TARGET will have already been set
2827 # by `configure', so we won't have an opportunity to add -Bgcc/
2828 # to it. This is right: we don't want to search that directory
2829 # for binaries, but we want the header files in there, so add
2830 # them explicitly.
2831 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
2832
2833 # Someone might think of using the pre-installed headers on
2834 # Canadian crosses, in case the installed compiler is not fully
2835 # compatible with the compiler being built. In this case, it
2836 # would be better to flag an error than risking having
2837 # incompatible object files being constructed. We can't
2838 # guarantee that an error will be flagged, but let's hope the
2839 # compiler will do it, when presented with incompatible header
2840 # files.
2841 fi
2842 fi
2843
2844 case "${target}-${is_cross_compiler}" in
2845 i[[3456789]]86-*-linux*-no)
2846 # Here host == target, so we don't need to build gcc,
2847 # so we don't want to discard standard headers.
2848 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2849 ;;
2850 *)
2851 # If we're building newlib, use its generic headers last, but search
2852 # for any libc-related directories first (so make it the last -B
2853 # switch).
2854 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2855
2856 # If we're building libgloss, find the startup file, simulator library
2857 # and linker script.
2858 case " $target_configdirs " in
2859 *" libgloss "*)
2860 # Look for startup file, simulator library and maybe linker script.
2861 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
2862 # Look for libnosys.a in case the target needs it.
2863 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2864 # Most targets have the linker script in the source directory.
2865 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
2866 ;;
2867 esac
2868 ;;
2869 esac
2870 ;;
2871 esac
2872 ;;
2873 esac
2874
2875 case "$target" in
2876 x86_64-*mingw* | *-w64-mingw*)
2877 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
2878 # however, use a symlink named 'mingw' in ${prefix} .
2879 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
2880 ;;
2881 *-mingw*)
2882 # MinGW can't be handled as Cygwin above since it does not use newlib.
2883 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
2884 ;;
2885 esac
2886
2887 # Allow the user to override the flags for
2888 # our build compiler if desired.
2889 if test x"${build}" = x"${host}" ; then
2890 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2891 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
2892 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
2893 fi
2894
2895 # On Canadian crosses, we'll be searching the right directories for
2896 # the previously-installed cross compiler, so don't bother to add
2897 # flags for directories within the install tree of the compiler
2898 # being built; programs in there won't even run.
2899 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2900 # Search for pre-installed headers if nothing else fits.
2901 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2902 fi
2903
2904 if test "x${use_gnu_ld}" = x &&
2905 echo " ${configdirs} " | grep " ld " > /dev/null ; then
2906 # Arrange for us to find uninstalled linker scripts.
2907 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2908 fi
2909
2910 # Search for other target-specific linker scripts and such.
2911 case "${target}" in
2912 mep*)
2913 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
2914 ;;
2915 esac
2916
2917 # Makefile fragments.
2918 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2919 do
2920 eval fragval=\$$frag
2921 if test $fragval != /dev/null; then
2922 eval $frag=${srcdir}/$fragval
2923 fi
2924 done
2925 AC_SUBST_FILE(host_makefile_frag)
2926 AC_SUBST_FILE(target_makefile_frag)
2927 AC_SUBST_FILE(alphaieee_frag)
2928 AC_SUBST_FILE(ospace_frag)
2929
2930 # Miscellanea: directories, flags, etc.
2931 AC_SUBST(RPATH_ENVVAR)
2932 AC_SUBST(GCC_SHLIB_SUBDIR)
2933 AC_SUBST(tooldir)
2934 AC_SUBST(build_tooldir)
2935 AC_SUBST(CONFIGURE_GDB_TK)
2936 AC_SUBST(GDB_TK)
2937 AC_SUBST(INSTALL_GDB_TK)
2938
2939 # Build module lists & subconfigure args.
2940 AC_SUBST(build_configargs)
2941 AC_SUBST(build_configdirs)
2942
2943 # Host module lists & subconfigure args.
2944 AC_SUBST(host_configargs)
2945 AC_SUBST(configdirs)
2946 AC_SUBST(target_configdirs)
2947
2948 # Target module lists & subconfigure args.
2949 AC_SUBST(target_configargs)
2950
2951
2952 # Build tools.
2953 AC_SUBST(AR_FOR_BUILD)
2954 AC_SUBST(AS_FOR_BUILD)
2955 AC_SUBST(CC_FOR_BUILD)
2956 AC_SUBST(CFLAGS_FOR_BUILD)
2957 AC_SUBST(CXXFLAGS_FOR_BUILD)
2958 AC_SUBST(CXX_FOR_BUILD)
2959 AC_SUBST(DLLTOOL_FOR_BUILD)
2960 AC_SUBST(GCJ_FOR_BUILD)
2961 AC_SUBST(GFORTRAN_FOR_BUILD)
2962 AC_SUBST(GOC_FOR_BUILD)
2963 AC_SUBST(LDFLAGS_FOR_BUILD)
2964 AC_SUBST(LD_FOR_BUILD)
2965 AC_SUBST(NM_FOR_BUILD)
2966 AC_SUBST(RANLIB_FOR_BUILD)
2967 AC_SUBST(WINDMC_FOR_BUILD)
2968 AC_SUBST(WINDRES_FOR_BUILD)
2969
2970 # Generate default definitions for YACC, M4, LEX and other programs that run
2971 # on the build machine. These are used if the Makefile can't locate these
2972 # programs in objdir.
2973 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2974
2975 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2976 case " $build_configdirs " in
2977 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2978 esac
2979
2980 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2981 case " $build_configdirs " in
2982 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2983 esac
2984
2985 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2986 case " $build_configdirs " in
2987 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2988 esac
2989
2990 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2991 case " $build_configdirs " in
2992 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2993 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2994 esac
2995
2996 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2997 case " $build_configdirs " in
2998 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2999 esac
3000
3001 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3002 case " $build_configdirs " in
3003 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3004 *)
3005 changequote(,)
3006 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3007 # higher, else we use the "missing" dummy.
3008 if ${MAKEINFO} --version \
3009 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3010 :
3011 else
3012 MAKEINFO="$MISSING makeinfo"
3013 fi
3014 ;;
3015 changequote([,])
3016 esac
3017
3018 # FIXME: expect and dejagnu may become build tools?
3019
3020 AC_CHECK_PROGS(EXPECT, expect, expect)
3021 case " $configdirs " in
3022 *" expect "*)
3023 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3024 ;;
3025 esac
3026
3027 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3028 case " $configdirs " in
3029 *" dejagnu "*)
3030 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3031 ;;
3032 esac
3033
3034
3035 # Host tools.
3036 NCN_STRICT_CHECK_TOOLS(AR, ar)
3037 NCN_STRICT_CHECK_TOOLS(AS, as)
3038 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3039 NCN_STRICT_CHECK_TOOLS(LD, ld)
3040 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3041 NCN_STRICT_CHECK_TOOLS(NM, nm)
3042 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3043 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3044 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3045 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3046 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3047 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3048 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3049 AC_SUBST(CC)
3050 AC_SUBST(CXX)
3051 AC_SUBST(CFLAGS)
3052 AC_SUBST(CXXFLAGS)
3053
3054 # Target tools.
3055 AC_ARG_WITH([build-time-tools],
3056 [AS_HELP_STRING([--with-build-time-tools=PATH],
3057 [use given path to find target tools during the build])],
3058 [case x"$withval" in
3059 x/*) ;;
3060 *)
3061 with_build_time_tools=
3062 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3063 ;;
3064 esac],
3065 [with_build_time_tools=])
3066
3067 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3068 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3069 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3070 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3071 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3072 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3073
3074 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3075 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3076 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3077 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3078 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3079 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3080 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3081 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3082 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3083 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3084 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3085 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3086
3087 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3088
3089 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3090 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3091 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3092 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3093 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3094 [gcc/g++ -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$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
3095 c++)
3096 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3097 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
3098 c++)
3099 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3100 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3101 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
3102 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
3103 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3104 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3105 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3106 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3107 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3108 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3109 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3110 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3111 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3112 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3113 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3114 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3115 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3116
3117 AC_SUBST(FLAGS_FOR_TARGET)
3118 AC_SUBST(RAW_CXX_FOR_TARGET)
3119
3120 # Certain tools may need extra flags.
3121 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3122 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3123 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3124
3125 # When building target libraries, except in a Canadian cross, we use
3126 # the same toolchain as the compiler we just built.
3127 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3128 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3129 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3130 if test $host = $build; then
3131 case " $configdirs " in
3132 *" gcc "*)
3133 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3134 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3135 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3136 ;;
3137 esac
3138 fi
3139
3140 AC_SUBST(COMPILER_AS_FOR_TARGET)
3141 AC_SUBST(COMPILER_LD_FOR_TARGET)
3142 AC_SUBST(COMPILER_NM_FOR_TARGET)
3143
3144 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3145 AC_ARG_ENABLE(maintainer-mode,
3146 [AS_HELP_STRING([--enable-maintainer-mode],
3147 [enable make rules and dependencies not useful
3148 (and sometimes confusing) to the casual installer])],
3149 USE_MAINTAINER_MODE=$enableval,
3150 USE_MAINTAINER_MODE=no)
3151 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3152 AC_SUBST(MAINTAINER_MODE_TRUE)
3153 AC_SUBST(MAINTAINER_MODE_FALSE)
3154 if test "$USE_MAINTAINER_MODE" = yes; then
3155 MAINTAINER_MODE_TRUE=
3156 MAINTAINER_MODE_FALSE='#'
3157 else
3158 MAINTAINER_MODE_TRUE='#'
3159 MAINTAINER_MODE_FALSE=
3160 fi
3161 MAINT=$MAINTAINER_MODE_TRUE
3162 AC_SUBST(MAINT)dnl
3163
3164 # ---------------------
3165 # GCC bootstrap support
3166 # ---------------------
3167
3168 # Stage specific cflags for build.
3169 stage1_cflags="-g"
3170 case $build in
3171 vax-*-*)
3172 case ${GCC} in
3173 yes) stage1_cflags="-g -Wa,-J" ;;
3174 *) stage1_cflags="-g -J" ;;
3175 esac ;;
3176 esac
3177
3178 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
3179 if test "$GCC" = yes -a "$ENABLE_BUILD_WITH_CXX" != yes; then
3180 saved_CFLAGS="$CFLAGS"
3181
3182 # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
3183 CFLAGS="$CFLAGS -fkeep-inline-functions"
3184 AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
3185 AC_TRY_COMPILE([
3186 #if (__GNUC__ < 3) \
3187 || (__GNUC__ == 3 && (__GNUC_MINOR__ < 3 \
3188 || (__GNUC_MINOR__ == 3 && __GNUC_PATCHLEVEL__ < 1)))
3189 #error http://gcc.gnu.org/PR29382
3190 #endif
3191 ],,
3192 [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
3193 [AC_MSG_RESULT([no])])
3194
3195 CFLAGS="$saved_CFLAGS"
3196 fi
3197
3198 AC_SUBST(stage1_cflags)
3199
3200 # Enable --enable-checking in stage1 of the compiler.
3201 AC_ARG_ENABLE(stage1-checking,
3202 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3203 [choose additional checking for stage1 of the compiler])],
3204 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3205 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3206 stage1_checking=--enable-checking=yes,types
3207 else
3208 stage1_checking=--enable-checking=$enable_checking,types
3209 fi])
3210 AC_SUBST(stage1_checking)
3211
3212 # Enable -Werror in bootstrap stage2 and later.
3213 AC_ARG_ENABLE(werror,
3214 [AS_HELP_STRING([--enable-werror],
3215 [enable -Werror in bootstrap stage2 and later])], [],
3216 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3217 enable_werror=yes
3218 else
3219 enable_werror=no
3220 fi])
3221 case ${enable_werror} in
3222 yes) stage2_werror_flag="--enable-werror-always" ;;
3223 *) stage2_werror_flag="" ;;
3224 esac
3225 AC_SUBST(stage2_werror_flag)
3226
3227 # If using ENABLE_BUILD_POSTSTAGE1_WITH_CXX, pass
3228 # --enable-build-with-cxx after stage1.
3229 if test "$ENABLE_BUILD_POSTSTAGE1_WITH_CXX" = "yes"; then
3230 POSTSTAGE1_CONFIGURE_FLAGS=--enable-build-with-cxx
3231 else
3232 POSTSTAGE1_CONFIGURE_FLAGS=
3233 fi
3234 AC_SUBST(POSTSTAGE1_CONFIGURE_FLAGS)
3235
3236 # Specify what files to not compare during bootstrap.
3237
3238 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3239 case "$target" in
3240 hppa*64*-*-hpux*) ;;
3241 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
3242 esac
3243 case " $configdirs " in
3244 *" ppl "*) compare_exclusions="$compare_exclusions | ppl/src/ppl-config.o" ;;
3245 esac
3246 AC_SUBST(compare_exclusions)
3247
3248 AC_CONFIG_FILES([Makefile],
3249 [sed "$extrasub_build" Makefile |
3250 sed "$extrasub_host" |
3251 sed "$extrasub_target" > mf$$
3252 mv -f mf$$ Makefile],
3253 [extrasub_build="$extrasub_build"
3254 extrasub_host="$extrasub_host"
3255 extrasub_target="$extrasub_target"])
3256 AC_OUTPUT