| blob | 87f2aee050089231bad3e73c5a417d60c4da229c |
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 # 2014, 2015, 2016 Free Software Foundation, Inc.
4 #
5 # This file is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program; see the file COPYING3. If not see
17 # <http://www.gnu.org/licenses/>.
19 ##############################################################################
20 ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
22 m4_include(config/acx.m4)
23 m4_include(config/override.m4)
24 m4_include(config/proginstall.m4)
25 m4_include(config/elf.m4)
26 m4_include([libtool.m4])
27 m4_include([ltoptions.m4])
28 m4_include([ltsugar.m4])
29 m4_include([ltversion.m4])
30 m4_include([lt~obsolete.m4])
31 m4_include([config/isl.m4])
33 AC_INIT(move-if-change)
34 AC_DISABLE_OPTION_CHECKING
36 progname=$0
37 # if PWD already has a value, it is probably wrong.
38 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
40 # Export original configure arguments for use by sub-configures.
41 # Quote arguments with shell meta charatcers.
42 TOPLEVEL_CONFIGURE_ARGUMENTS=
43 set -- "$progname" "$@"
44 for ac_arg
45 do
46 case "$ac_arg" in
47 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
48 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
49 # if the argument is of the form -foo=baz, quote the baz part only
50 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
51 *) ;;
52 esac
53 # Add the quoted argument to the list.
54 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
55 done
56 if test "$silent" = yes; then
57 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
58 fi
59 # Remove the initial space we just introduced and, as these will be
60 # expanded by make, quote '$'.
61 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
62 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
64 # Find the build, host, and target systems.
65 ACX_NONCANONICAL_BUILD
66 ACX_NONCANONICAL_HOST
67 ACX_NONCANONICAL_TARGET
69 dnl Autoconf 2.5x and later will set a default program prefix if
70 dnl --target was used, even if it was the same as --host. Disable
71 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
72 dnl to take effect.
73 test "$host_noncanonical" = "$target_noncanonical" &&
74 test "$program_prefix$program_suffix$program_transform_name" = \
75 NONENONEs,x,x, &&
76 program_transform_name=s,y,y,
78 AC_CANONICAL_SYSTEM
79 AC_ARG_PROGRAM
81 m4_pattern_allow([^AS_FOR_TARGET$])dnl
82 m4_pattern_allow([^AS_FOR_BUILD$])dnl
84 # Get 'install' or 'install-sh' and its variants.
85 AC_PROG_INSTALL
86 ACX_PROG_LN
87 AC_PROG_LN_S
88 AC_PROG_SED
89 AC_PROG_AWK
91 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
93 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
94 # a relative path.
95 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
96 INSTALL="${srcpwd}/install-sh -c"
97 fi
99 # Set srcdir to "." if that's what it is.
100 # This is important for multilib support.
101 pwd=`${PWDCMD-pwd}`
102 if test "${pwd}" = "${srcpwd}" ; then
103 srcdir=.
104 fi
106 topsrcdir=$srcpwd
108 extra_host_args=
110 ### To add a new directory to the tree, first choose whether it is a target
111 ### or a host dependent tool. Then put it into the appropriate list
112 ### (library or tools, host or target), doing a dependency sort.
114 # Subdirs will be configured in the order listed in build_configdirs,
115 # configdirs, or target_configdirs; see the serialization section below.
117 # Dependency sorting is only needed when *configuration* must be done in
118 # a particular order. In all cases a dependency should be specified in
119 # the Makefile, whether or not it's implicitly specified here.
121 # Double entries in build_configdirs, configdirs, or target_configdirs may
122 # cause circular dependencies and break everything horribly.
124 # these library is used by various programs built for the build
125 # environment
126 #
127 build_libs="build-libiberty build-libcpp"
129 # these tools are built for the build environment
130 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
132 # these libraries are used by various programs built for the host environment
133 #f
134 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv"
136 # these tools are built for the host environment
137 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
138 # know that we are building the simulator.
139 # binutils, gas and ld appear in that order because it makes sense to run
140 # "make check" in that particular order.
141 # If --enable-gold is used, "gold" may replace "ld".
142 host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools"
144 # these libraries are built for the target environment, and are built after
145 # the host libraries and the host tools (which may be a cross compiler)
146 # Note that libiberty is not a target library.
147 target_libraries="target-libgcc \
148 target-libbacktrace \
149 target-libgloss \
150 target-newlib \
151 target-libgomp \
152 target-liboffloadmic \
153 target-libhsail-rt \
154 target-libatomic \
155 target-libitm \
156 target-libstdc++-v3 \
157 target-libsanitizer \
158 target-libvtv \
159 target-libssp \
160 target-libquadmath \
161 target-libgfortran \
162 target-libffi \
163 target-libobjc \
164 target-libada \
165 target-libgo \
166 target-libphobos"
168 # these tools are built using the target libraries, and are intended to
169 # run only in the target environment
170 #
171 # note: any program that *uses* libraries that are in the "target_libraries"
172 # list belongs in this list.
173 #
174 target_tools="target-rda"
176 ################################################################################
178 ## All tools belong in one of the four categories, and are assigned above
179 ## We assign ${configdirs} this way to remove all embedded newlines. This
180 ## is important because configure will choke if they ever get through.
181 ## ${configdirs} is directories we build using the host tools.
182 ## ${target_configdirs} is directories we build using the target tools.
183 configdirs=`echo ${host_libs} ${host_tools}`
184 target_configdirs=`echo ${target_libraries} ${target_tools}`
185 build_configdirs=`echo ${build_libs} ${build_tools}`
187 m4_divert_text([PARSE_ARGS],
188 [case $srcdir in
189 *" "*)
190 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
191 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
192 m4_popdef([AS_MESSAGE_LOG_FD])dnl
193 ;;
194 esac
195 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
196 ])
198 ################################################################################
200 srcname="gnu development package"
202 # This gets set non-empty for some net releases of packages.
203 appdirs=""
205 # Define is_cross_compiler to save on calls to 'test'.
206 is_cross_compiler=
207 if test x"${host}" = x"${target}" ; then
208 is_cross_compiler=no
209 else
210 is_cross_compiler=yes
211 fi
213 # Find the build and target subdir names.
214 GCC_TOPLEV_SUBDIRS
215 # Be sure to cover against remnants of an in-tree build.
216 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
217 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
218 Use a pristine source tree when building in a separate tree])
219 fi
221 # Skipdirs are removed silently.
222 skipdirs=
223 # Noconfigdirs are removed loudly.
224 noconfigdirs=""
226 use_gnu_ld=
227 # Make sure we don't let GNU ld be added if we didn't want it.
228 if test x$with_gnu_ld = xno ; then
229 use_gnu_ld=no
230 noconfigdirs="$noconfigdirs ld gold"
231 fi
233 use_gnu_as=
234 # Make sure we don't let GNU as be added if we didn't want it.
235 if test x$with_gnu_as = xno ; then
236 use_gnu_as=no
237 noconfigdirs="$noconfigdirs gas"
238 fi
240 use_included_zlib=
241 AC_ARG_WITH(system-zlib,
242 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
243 # Make sure we don't let ZLIB be added if we didn't want it.
244 if test x$with_system_zlib = xyes ; then
245 use_included_zlib=no
246 noconfigdirs="$noconfigdirs zlib"
247 fi
249 # some tools are so dependent upon X11 that if we're not building with X,
250 # it's not even worth trying to configure, much less build, that tool.
252 case ${with_x} in
253 yes | "") ;; # the default value for this tree is that X11 is available
254 no)
255 skipdirs="${skipdirs} tk itcl libgui"
256 # We won't be able to build gdbtk without X.
257 enable_gdbtk=no
258 ;;
259 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
260 esac
262 # Some are only suitable for cross toolchains.
263 # Remove these if host=target.
264 cross_only="target-libgloss target-newlib target-opcodes"
266 case $is_cross_compiler in
267 no) skipdirs="${skipdirs} ${cross_only}" ;;
268 esac
270 # If both --with-headers and --with-libs are specified, default to
271 # --without-newlib.
272 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
273 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
274 if test x"${with_newlib}" = x ; then
275 with_newlib=no
276 fi
277 fi
279 # Recognize --with-newlib/--without-newlib.
280 case ${with_newlib} in
281 no) skipdirs="${skipdirs} target-newlib" ;;
282 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
283 esac
285 AC_ARG_ENABLE(as-accelerator-for,
286 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
287 [build as offload target compiler.
288 Specify offload host triple by ARG])])
290 AC_ARG_ENABLE(offload-targets,
291 [AS_HELP_STRING([--enable-offload-targets=LIST],
292 [enable offloading to devices from comma-separated LIST of
293 TARGET[=DIR]. Use optional path to find offload target compiler
294 during the build])],
295 [
296 if test x"$enable_offload_targets" = x; then
297 AC_MSG_ERROR([no offload targets specified])
298 fi
299 ], [enable_offload_targets=])
301 # Handle --enable-gold, --enable-ld.
302 # --disable-gold [--enable-ld]
303 # Build only ld. Default option.
304 # --enable-gold [--enable-ld]
305 # Build both gold and ld. Install gold as "ld.gold", install ld
306 # as "ld.bfd" and "ld".
307 # --enable-gold=default [--enable-ld]
308 # Build both gold and ld. Install gold as "ld.gold" and "ld",
309 # install ld as "ld.bfd".
310 # --enable-gold[=default] --disable-ld
311 # Build only gold, which is then installed as both "ld.gold" and "ld".
312 # --enable-gold --enable-ld=default
313 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
314 # and ld.bfd).
315 # In other words, ld is default
316 # --enable-gold=default --enable-ld=default
317 # Error.
319 default_ld=
320 AC_ARG_ENABLE(gold,
321 [AS_HELP_STRING([[--enable-gold[=ARG]]],
322 [build gold @<:@ARG={default,yes,no}@:>@])],
323 ENABLE_GOLD=$enableval,
324 ENABLE_GOLD=no)
325 case "${ENABLE_GOLD}" in
326 yes|default)
327 # Check for ELF target.
328 is_elf=no
329 case "${target}" in
330 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
331 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
332 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
333 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
334 case "${target}" in
335 *-*-linux*aout* | *-*-linux*oldld*)
336 ;;
337 *)
338 is_elf=yes
339 ;;
340 esac
341 esac
343 if test "$is_elf" = "yes"; then
344 # Check for target supported by gold.
345 case "${target}" in
346 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
347 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
348 configdirs="$configdirs gold"
349 if test x${ENABLE_GOLD} = xdefault; then
350 default_ld=gold
351 fi
352 ENABLE_GOLD=yes
353 ;;
354 esac
355 fi
356 ;;
357 no)
358 ;;
359 *)
360 AC_MSG_ERROR([invalid --enable-gold argument])
361 ;;
362 esac
364 AC_ARG_ENABLE(ld,
365 [AS_HELP_STRING([[--enable-ld[=ARG]]],
366 [build ld @<:@ARG={default,yes,no}@:>@])],
367 ENABLE_LD=$enableval,
368 ENABLE_LD=yes)
370 case "${ENABLE_LD}" in
371 default)
372 if test x${default_ld} != x; then
373 AC_MSG_ERROR([either gold or ld can be the default ld])
374 fi
375 ;;
376 yes)
377 ;;
378 no)
379 if test x${ENABLE_GOLD} != xyes; then
380 AC_MSG_WARN([neither ld nor gold are enabled])
381 fi
382 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
383 ;;
384 *)
385 AC_MSG_ERROR([invalid --enable-ld argument])
386 ;;
387 esac
389 # PR gas/19109
390 # Decide the default method for compressing debug sections.
391 # Provide a configure time option to override our default.
392 AC_ARG_ENABLE(compressed_debug_sections,
393 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
394 [Enable compressed debug sections for gas, gold or ld by
395 default])],
396 [
397 if test x"$enable_compressed_debug_sections" = xyes; then
398 AC_MSG_ERROR([no program with compressed debug sections specified])
399 fi
400 ], [enable_compressed_debug_sections=])
402 # Configure extra directories which are host specific
404 case "${host}" in
405 *-cygwin*)
406 configdirs="$configdirs libtermcap" ;;
407 esac
409 # A target can indicate whether a language isn't supported for some reason.
410 # Only spaces may be used in this macro; not newlines or tabs.
411 unsupported_languages=
413 # Remove more programs from consideration, based on the host or
414 # target this usually means that a port of the program doesn't
415 # exist yet.
417 case "${host}" in
418 i[[3456789]]86-*-msdosdjgpp*)
419 noconfigdirs="$noconfigdirs tcl tk itcl"
420 ;;
421 esac
424 AC_ARG_ENABLE(libquadmath,
425 AS_HELP_STRING([--disable-libquadmath],
426 [do not build libquadmath directory]),
427 ENABLE_LIBQUADMATH=$enableval,
428 ENABLE_LIBQUADMATH=yes)
429 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
430 noconfigdirs="$noconfigdirs target-libquadmath"
431 fi
434 AC_ARG_ENABLE(libquadmath-support,
435 AS_HELP_STRING([--disable-libquadmath-support],
436 [disable libquadmath support for Fortran]),
437 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
438 ENABLE_LIBQUADMATH_SUPPORT=yes)
439 enable_libquadmath_support=
440 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
441 enable_libquadmath_support=no
442 fi
445 AC_ARG_ENABLE(libada,
446 [AS_HELP_STRING([--enable-libada], [build libada directory])],
447 ENABLE_LIBADA=$enableval,
448 ENABLE_LIBADA=yes)
449 if test "${ENABLE_LIBADA}" != "yes" ; then
450 noconfigdirs="$noconfigdirs gnattools"
451 fi
453 AC_ARG_ENABLE(libssp,
454 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
455 ENABLE_LIBSSP=$enableval,
456 ENABLE_LIBSSP=yes)
458 AC_ARG_ENABLE(libstdcxx,
459 AS_HELP_STRING([--disable-libstdcxx],
460 [do not build libstdc++-v3 directory]),
461 ENABLE_LIBSTDCXX=$enableval,
462 ENABLE_LIBSTDCXX=default)
463 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
464 noconfigdirs="$noconfigdirs target-libstdc++-v3"
465 fi]
467 # If this is accelerator compiler and its target is intelmic we enable
468 # target liboffloadmic by default. If this is compiler with offloading
469 # for intelmic we enable host liboffloadmic by default. Otherwise
470 # liboffloadmic is disabled by default.
471 AC_ARG_ENABLE([liboffloadmic],
472 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
473 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
474 [case "$enableval" in
475 no | host | target)
476 enable_liboffloadmic=$enableval ;;
477 *)
478 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
479 esac],
480 [if test x"$enable_as_accelerator_for" != x; then
481 case "${target}" in
482 *-intelmic-* | *-intelmicemul-*)
483 enable_liboffloadmic=target
484 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
485 ;;
486 *)
487 enable_liboffloadmic=no
488 ;;
489 esac
490 else
491 case "${enable_offload_targets}" in
492 *-intelmic-* | *-intelmicemul-*)
493 enable_liboffloadmic=host
494 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
495 ;;
496 *)
497 enable_liboffloadmic=no
498 ;;
499 esac
500 fi])
501 AC_SUBST(extra_liboffloadmic_configure_flags)
503 # Enable libgomp by default on hosted POSIX systems, and a few others.
504 if test x$enable_libgomp = x ; then
505 case "${target}" in
506 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
507 ;;
508 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
509 ;;
510 *-*-solaris2* | *-*-hpux11*)
511 ;;
512 *-*-darwin* | *-*-aix*)
513 ;;
514 nvptx*-*-*)
515 ;;
516 *)
517 noconfigdirs="$noconfigdirs target-libgomp"
518 ;;
519 esac
520 fi
522 # Disable libatomic on unsupported systems.
523 if test -d ${srcdir}/libatomic; then
524 if test x$enable_libatomic = x; then
525 AC_MSG_CHECKING([for libatomic support])
526 if (srcdir=${srcdir}/libatomic; \
527 . ${srcdir}/configure.tgt; \
528 test -n "$UNSUPPORTED")
529 then
530 AC_MSG_RESULT([no])
531 noconfigdirs="$noconfigdirs target-libatomic"
532 else
533 AC_MSG_RESULT([yes])
534 fi
535 fi
536 fi
538 # Disable liboffloadmic on unsupported systems.
539 if test -d ${srcdir}/liboffloadmic; then
540 if test x$enable_liboffloadmic != xno; then
541 AC_MSG_CHECKING([for liboffloadmic support])
542 if (srcdir=${srcdir}/liboffloadmic; \
543 . ${srcdir}/configure.tgt; \
544 test -n "$UNSUPPORTED")
545 then
546 AC_MSG_RESULT([no])
547 noconfigdirs="$noconfigdirs target-liboffloadmic"
548 else
549 AC_MSG_RESULT([yes])
550 fi
551 fi
552 fi
554 # Disable libitm on unsupported systems.
555 if test -d ${srcdir}/libitm; then
556 if test x$enable_libitm = x; then
557 AC_MSG_CHECKING([for libitm support])
558 if (srcdir=${srcdir}/libitm; \
559 . ${srcdir}/configure.tgt; \
560 test -n "$UNSUPPORTED")
561 then
562 AC_MSG_RESULT([no])
563 noconfigdirs="$noconfigdirs target-libitm"
564 else
565 AC_MSG_RESULT([yes])
566 fi
567 fi
568 fi
570 # Disable libsanitizer on unsupported systems.
571 if test -d ${srcdir}/libsanitizer; then
572 if test x$enable_libsanitizer = x; then
573 AC_MSG_CHECKING([for libsanitizer support])
574 if (srcdir=${srcdir}/libsanitizer; \
575 . ${srcdir}/configure.tgt; \
576 test -n "$UNSUPPORTED")
577 then
578 AC_MSG_RESULT([no])
579 noconfigdirs="$noconfigdirs target-libsanitizer"
580 else
581 AC_MSG_RESULT([yes])
582 fi
583 fi
584 fi
586 # Disable libvtv on unsupported systems.
587 if test -d ${srcdir}/libvtv; then
588 if test x$enable_libvtv = x; then
589 AC_MSG_CHECKING([for libvtv support])
590 if (srcdir=${srcdir}/libvtv; \
591 . ${srcdir}/configure.tgt; \
592 test "$VTV_SUPPORTED" != "yes")
593 then
594 AC_MSG_RESULT([no])
595 noconfigdirs="$noconfigdirs target-libvtv"
596 else
597 AC_MSG_RESULT([yes])
598 fi
599 fi
600 fi
603 # Disable libhsail-rt on unsupported systems.
604 if test -d ${srcdir}/libhsail-rt; then
605 if test x$enable_libhsail_rt = x; then
606 AC_MSG_CHECKING([for libhsail-rt support])
607 if (srcdir=${srcdir}/libhsail-rt; \
608 . ${srcdir}/configure.tgt; \
609 test -n "$UNSUPPORTED")
610 then
611 AC_MSG_RESULT([no])
612 unsupported_languages="$unsupported_languages brig"
613 # This implicitly disables also target-libhsail-rt as it won't
614 # get added to the build without BRIG FE.
615 else
616 AC_MSG_RESULT([yes])
617 fi
618 fi
619 fi
622 # Disable libquadmath for some systems.
623 case "${target}" in
624 avr-*-*)
625 noconfigdirs="$noconfigdirs target-libquadmath"
626 ;;
627 # libquadmath is unused on AIX and libquadmath build process use of
628 # LD_LIBRARY_PATH can break AIX bootstrap.
629 powerpc-*-aix* | rs6000-*-aix*)
630 noconfigdirs="$noconfigdirs target-libquadmath"
631 ;;
632 esac
634 # Disable libssp for some systems.
635 case "${target}" in
636 avr-*-*)
637 # No hosted I/O support.
638 noconfigdirs="$noconfigdirs target-libssp"
639 ;;
640 powerpc-*-aix* | rs6000-*-aix*)
641 noconfigdirs="$noconfigdirs target-libssp"
642 ;;
643 rl78-*-*)
644 # libssp uses a misaligned load to trigger a fault, but the RL78
645 # doesn't fault for those - instead, it gives a build-time error
646 # for explicit misaligned loads.
647 noconfigdirs="$noconfigdirs target-libssp"
648 ;;
649 visium-*-*)
650 # No hosted I/O support.
651 noconfigdirs="$noconfigdirs target-libssp"
652 ;;
653 esac
655 # Disable libstdc++-v3 for some systems.
656 # Allow user to override this if they pass --enable-libstdc++-v3
657 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
658 case "${target}" in
659 *-*-vxworks*)
660 # VxWorks uses the Dinkumware C++ library.
661 noconfigdirs="$noconfigdirs target-libstdc++-v3"
662 ;;
663 arm*-wince-pe*)
664 # the C++ libraries don't build on top of CE's C libraries
665 noconfigdirs="$noconfigdirs target-libstdc++-v3"
666 ;;
667 avr-*-*)
668 noconfigdirs="$noconfigdirs target-libstdc++-v3"
669 ;;
670 ft32-*-*)
671 noconfigdirs="$noconfigdirs target-libstdc++-v3"
672 ;;
673 esac
674 fi
676 # Disable D on systems where it is known to not work.
677 # For testing, you can override this with --enable-languages=d.
678 case ,${enable_languages}, in
679 *,d,*)
680 ;;
681 *)
682 case "${target}" in
683 *-*-darwin* | *-*-cygwin* | *-*-mingw*)
684 unsupported_languages="$unsupported_languages d"
685 ;;
686 esac
687 ;;
688 esac
690 # Disable libphobos on unsupported systems.
691 # For testing, you can override this with --enable-libphobos.
692 if test -d ${srcdir}/libphobos; then
693 if test x$enable_libphobos = x; then
694 AC_MSG_CHECKING([for libphobos support])
695 if (srcdir=${srcdir}/libphobos; \
696 . ${srcdir}/configure.tgt; \
697 test -n "$UNSUPPORTED")
698 then
699 AC_MSG_RESULT([no])
700 noconfigdirs="$noconfigdirs target-libphobos"
701 else
702 AC_MSG_RESULT([yes])
703 fi
704 fi
705 fi
707 # Disable Fortran for some systems.
708 case "${target}" in
709 mmix-*-*)
710 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
711 unsupported_languages="$unsupported_languages fortran"
712 ;;
713 esac
715 # Disable libffi for some systems.
716 case "${target}" in
717 powerpc-*-darwin*)
718 ;;
719 i[[3456789]]86-*-darwin*)
720 ;;
721 x86_64-*-darwin[[912]]*)
722 ;;
723 *-*-darwin*)
724 noconfigdirs="$noconfigdirs target-libffi"
725 ;;
726 *-*-netware*)
727 noconfigdirs="$noconfigdirs target-libffi"
728 ;;
729 *-*-phoenix*)
730 noconfigdirs="$noconfigdirs target-libffi"
731 ;;
732 *-*-rtems*)
733 noconfigdirs="$noconfigdirs target-libffi"
734 ;;
735 *-*-tpf*)
736 noconfigdirs="$noconfigdirs target-libffi"
737 ;;
738 *-*-uclinux*)
739 noconfigdirs="$noconfigdirs target-libffi"
740 ;;
741 *-*-vxworks*)
742 noconfigdirs="$noconfigdirs target-libffi"
743 ;;
744 aarch64*-*-freebsd*)
745 noconfigdirs="$noconfigdirs target-libffi"
746 ;;
747 alpha*-*-*vms*)
748 noconfigdirs="$noconfigdirs target-libffi"
749 ;;
750 arm*-*-freebsd*)
751 noconfigdirs="$noconfigdirs target-libffi"
752 ;;
753 arm-wince-pe)
754 noconfigdirs="$noconfigdirs target-libffi"
755 ;;
756 arm*-*-symbianelf*)
757 noconfigdirs="$noconfigdirs target-libffi"
758 ;;
759 cris-*-* | crisv32-*-*)
760 case "${target}" in
761 *-*-linux*)
762 ;;
763 *) # See PR46792 regarding target-libffi.
764 noconfigdirs="$noconfigdirs target-libffi";;
765 esac
766 ;;
767 hppa*64*-*-hpux*)
768 noconfigdirs="$noconfigdirs target-libffi"
769 ;;
770 hppa*-hp-hpux11*)
771 ;;
772 hppa*-*-hpux*)
773 noconfigdirs="$noconfigdirs target-libffi"
774 ;;
775 ia64*-*-*vms*)
776 noconfigdirs="$noconfigdirs target-libffi"
777 ;;
778 i[[3456789]]86-w64-mingw*)
779 noconfigdirs="$noconfigdirs target-libffi"
780 ;;
781 i[[3456789]]86-*-mingw*)
782 noconfigdirs="$noconfigdirs target-libffi"
783 ;;
784 x86_64-*-mingw*)
785 noconfigdirs="$noconfigdirs target-libffi"
786 ;;
787 mmix-*-*)
788 noconfigdirs="$noconfigdirs target-libffi"
789 ;;
790 powerpc-*-aix*)
791 ;;
792 rs6000-*-aix*)
793 ;;
794 ft32-*-*)
795 noconfigdirs="$noconfigdirs target-libffi"
796 ;;
797 *-*-lynxos*)
798 noconfigdirs="$noconfigdirs target-libffi"
799 ;;
800 esac
802 # Disable the go frontend on systems where it is known to not work. Please keep
803 # this in sync with contrib/config-list.mk.
804 case "${target}" in
805 *-*-darwin* | *-*-cygwin* | *-*-mingw*)
806 unsupported_languages="$unsupported_languages go"
807 ;;
808 esac
810 # Disable libgo for some systems where it is known to not work.
811 # For testing, you can easily override this with --enable-libgo.
812 if test x$enable_libgo = x; then
813 case "${target}" in
814 *-*-darwin*)
815 # PR 46986
816 noconfigdirs="$noconfigdirs target-libgo"
817 ;;
818 *-*-cygwin* | *-*-mingw*)
819 noconfigdirs="$noconfigdirs target-libgo"
820 ;;
821 esac
822 fi
824 # Default libgloss CPU subdirectory.
825 libgloss_dir="$target_cpu"
827 case "${target}" in
828 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
829 libgloss_dir=wince
830 ;;
831 aarch64*-*-* )
832 libgloss_dir=aarch64
833 ;;
834 arm*-*-*)
835 libgloss_dir=arm
836 ;;
837 cris-*-* | crisv32-*-*)
838 libgloss_dir=cris
839 ;;
840 hppa*-*-*)
841 libgloss_dir=pa
842 ;;
843 i[[3456789]]86-*-*)
844 libgloss_dir=i386
845 ;;
846 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
847 libgloss_dir=m68hc11
848 ;;
849 m68*-*-* | fido-*-*)
850 libgloss_dir=m68k
851 ;;
852 mips*-*-*)
853 libgloss_dir=mips
854 ;;
855 powerpc*-*-*)
856 libgloss_dir=rs6000
857 ;;
858 sparc*-*-*)
859 libgloss_dir=sparc
860 ;;
861 esac
863 # Disable newlib and libgloss for various target OSes.
864 case "${target}" in
865 alpha*-dec-osf*)
866 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
867 ;;
868 i[[3456789]]86-*-linux*)
869 # This section makes it possible to build newlib natively on linux.
870 # If we are using a cross compiler then don't configure newlib.
871 if test x${is_cross_compiler} != xno ; then
872 noconfigdirs="$noconfigdirs target-newlib"
873 fi
874 noconfigdirs="$noconfigdirs target-libgloss"
875 # If we are not using a cross compiler, do configure newlib.
876 # Note however, that newlib will only be configured in this situation
877 # if the --with-newlib option has been given, because otherwise
878 # 'target-newlib' will appear in skipdirs.
879 ;;
880 i[[3456789]]86-*-rdos*)
881 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
882 ;;
883 sh*-*-pe|mips*-*-pe|arm-wince-pe)
884 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
885 ;;
886 sparc-*-sunos4*)
887 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
888 ;;
889 *-*-aix*)
890 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
891 ;;
892 *-*-beos*)
893 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
894 ;;
895 *-*-chorusos)
896 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
897 ;;
898 *-*-dragonfly*)
899 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
900 ;;
901 *-*-freebsd*)
902 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
903 ;;
904 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
905 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
906 ;;
907 *-*-lynxos*)
908 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
909 ;;
910 *-*-mingw*)
911 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
912 ;;
913 *-*-netbsd*)
914 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
915 ;;
916 *-*-netware*)
917 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
918 ;;
919 *-*-tpf*)
920 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
921 ;;
922 *-*-uclinux*)
923 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
924 ;;
925 *-*-vxworks*)
926 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
927 ;;
928 esac
930 case "${target}" in
931 *-*-chorusos)
932 ;;
933 aarch64-*-darwin*)
934 noconfigdirs="$noconfigdirs ld gas gdb gprof"
935 noconfigdirs="$noconfigdirs sim target-rda"
936 ;;
937 amdgcn*-*-*)
938 ;;
939 arm-*-darwin*)
940 noconfigdirs="$noconfigdirs ld gas gdb gprof"
941 noconfigdirs="$noconfigdirs sim target-rda"
942 ;;
943 powerpc-*-darwin*)
944 noconfigdirs="$noconfigdirs ld gas gdb gprof"
945 noconfigdirs="$noconfigdirs sim target-rda"
946 ;;
947 i[[3456789]]86-*-darwin*)
948 noconfigdirs="$noconfigdirs ld gprof"
949 noconfigdirs="$noconfigdirs sim target-rda"
950 ;;
951 x86_64-*-darwin[[912]]*)
952 noconfigdirs="$noconfigdirs ld gas gprof"
953 noconfigdirs="$noconfigdirs sim target-rda"
954 ;;
955 *-*-darwin*)
956 noconfigdirs="$noconfigdirs ld gas gdb gprof"
957 noconfigdirs="$noconfigdirs sim target-rda"
958 ;;
959 *-*-dragonfly*)
960 ;;
961 *-*-freebsd*)
962 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
963 && test -f /usr/local/include/gmp.h; then
964 with_gmp=/usr/local
965 fi
966 ;;
967 *-*-kaos*)
968 # Remove unsupported stuff on all kaOS configurations.
969 noconfigdirs="$noconfigdirs target-libgloss"
970 ;;
971 *-*-netbsd*)
972 ;;
973 *-*-netware*)
974 ;;
975 *-*-phoenix*)
976 noconfigdirs="$noconfigdirs target-libgloss"
977 ;;
978 *-*-rtems*)
979 noconfigdirs="$noconfigdirs target-libgloss"
980 ;;
981 # The tpf target doesn't support gdb yet.
982 *-*-tpf*)
983 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
984 ;;
985 *-*-uclinux*)
986 noconfigdirs="$noconfigdirs target-rda"
987 ;;
988 *-*-vxworks*)
989 ;;
990 alpha*-dec-osf*)
991 # ld works, but does not support shared libraries.
992 # gas doesn't generate exception information.
993 noconfigdirs="$noconfigdirs gas ld"
994 ;;
995 alpha*-*-*vms*)
996 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
997 ;;
998 alpha*-*-*)
999 # newlib is not 64 bit ready
1000 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1001 ;;
1002 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1003 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1004 ;;
1005 arc*-*-*)
1006 noconfigdirs="$noconfigdirs sim"
1007 ;;
1008 arm-*-pe*)
1009 noconfigdirs="$noconfigdirs target-libgloss"
1010 ;;
1011 arm-*-riscix*)
1012 noconfigdirs="$noconfigdirs ld target-libgloss"
1013 ;;
1014 avr-*-*)
1015 if test x${with_avrlibc} != xno; then
1016 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1017 fi
1018 ;;
1019 c4x-*-* | tic4x-*-*)
1020 noconfigdirs="$noconfigdirs target-libgloss"
1021 ;;
1022 tic54x-*-*)
1023 noconfigdirs="$noconfigdirs target-libgloss gdb"
1024 ;;
1025 d10v-*-*)
1026 noconfigdirs="$noconfigdirs target-libgloss"
1027 ;;
1028 d30v-*-*)
1029 noconfigdirs="$noconfigdirs gdb"
1030 ;;
1031 fr30-*-elf*)
1032 noconfigdirs="$noconfigdirs gdb"
1033 ;;
1034 ft32-*-*)
1035 noconfigdirs="$noconfigdirs target-rda gprof"
1036 ;;
1037 moxie-*-*)
1038 noconfigdirs="$noconfigdirs"
1039 ;;
1040 h8300*-*-*)
1041 noconfigdirs="$noconfigdirs target-libgloss"
1042 ;;
1043 h8500-*-*)
1044 noconfigdirs="$noconfigdirs target-libgloss"
1045 ;;
1046 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1047 ;;
1048 hppa*64*-*-hpux*)
1049 noconfigdirs="$noconfigdirs gdb"
1050 ;;
1051 hppa*-*-hpux11*)
1052 noconfigdirs="$noconfigdirs gdb ld"
1053 ;;
1054 hppa*64*-*-linux*)
1055 ;;
1056 hppa*-*-linux*)
1057 ;;
1058 hppa*-*-*elf* | \
1059 hppa*-*-lites* | \
1060 hppa*-*-openbsd* | \
1061 hppa*64*-*-*)
1062 ;;
1063 hppa*-*-pro*)
1064 ;;
1065 hppa*-*-*)
1066 noconfigdirs="$noconfigdirs ld"
1067 ;;
1068 i960-*-*)
1069 noconfigdirs="$noconfigdirs gdb"
1070 ;;
1071 ia64*-*-elf*)
1072 # No gdb support yet.
1073 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1074 ;;
1075 ia64*-**-hpux*)
1076 # No ld support yet.
1077 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1078 ;;
1079 ia64*-*-*vms*)
1080 # No ld support yet.
1081 noconfigdirs="$noconfigdirs libgui itcl ld"
1082 ;;
1083 i[[3456789]]86-w64-mingw*)
1084 ;;
1085 i[[3456789]]86-*-mingw*)
1086 target_configdirs="$target_configdirs target-winsup"
1087 ;;
1088 *-*-cygwin*)
1089 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1090 noconfigdirs="$noconfigdirs target-libgloss"
1091 # always build newlib if winsup directory is present.
1092 if test -d "$srcdir/winsup/cygwin"; then
1093 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1094 elif test -d "$srcdir/newlib"; then
1095 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1096 fi
1097 ;;
1098 i[[3456789]]86-*-pe)
1099 noconfigdirs="$noconfigdirs target-libgloss"
1100 ;;
1101 i[[3456789]]86-*-sco3.2v5*)
1102 # The linker does not yet know about weak symbols in COFF,
1103 # and is not configured to handle mixed ELF and COFF.
1104 noconfigdirs="$noconfigdirs ld target-libgloss"
1105 ;;
1106 i[[3456789]]86-*-sco*)
1107 noconfigdirs="$noconfigdirs gprof target-libgloss"
1108 ;;
1109 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1110 noconfigdirs="$noconfigdirs target-libgloss"
1111 ;;
1112 i[[3456789]]86-*-sysv4*)
1113 noconfigdirs="$noconfigdirs target-libgloss"
1114 ;;
1115 i[[3456789]]86-*-beos*)
1116 noconfigdirs="$noconfigdirs gdb"
1117 ;;
1118 i[[3456789]]86-*-rdos*)
1119 noconfigdirs="$noconfigdirs gdb"
1120 ;;
1121 mmix-*-*)
1122 noconfigdirs="$noconfigdirs gdb"
1123 ;;
1124 mt-*-*)
1125 noconfigdirs="$noconfigdirs sim"
1126 ;;
1127 nfp-*-*)
1128 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1129 noconfigdirs="$noconfigdirs $target_libraries"
1130 ;;
1131 powerpc-*-aix*)
1132 # copied from rs6000-*-* entry
1133 noconfigdirs="$noconfigdirs gprof"
1134 ;;
1135 powerpc*-*-winnt* | powerpc*-*-pe*)
1136 target_configdirs="$target_configdirs target-winsup"
1137 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1138 # always build newlib.
1139 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1140 ;;
1141 # This is temporary until we can link against shared libraries
1142 powerpcle-*-solaris*)
1143 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1144 ;;
1145 powerpc-*-beos*)
1146 noconfigdirs="$noconfigdirs gdb"
1147 ;;
1148 rs6000-*-lynxos*)
1149 noconfigdirs="$noconfigdirs gprof"
1150 ;;
1151 rs6000-*-aix*)
1152 noconfigdirs="$noconfigdirs gprof"
1153 ;;
1154 rs6000-*-*)
1155 noconfigdirs="$noconfigdirs gprof"
1156 ;;
1157 m68k-apollo-*)
1158 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1159 ;;
1160 microblaze*)
1161 noconfigdirs="$noconfigdirs gprof"
1162 ;;
1163 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1164 if test x$with_newlib = xyes; then
1165 noconfigdirs="$noconfigdirs gprof"
1166 fi
1167 ;;
1168 mips*-*-irix5*)
1169 noconfigdirs="$noconfigdirs gprof target-libgloss"
1170 ;;
1171 mips*-*-irix6*)
1172 noconfigdirs="$noconfigdirs gprof target-libgloss"
1173 ;;
1174 mips*-*-bsd*)
1175 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1176 ;;
1177 mips*-*-linux*)
1178 ;;
1179 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1180 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1181 noconfigdirs="$noconfigdirs ld gas gprof"
1182 ;;
1183 mips*-*-*)
1184 noconfigdirs="$noconfigdirs gprof"
1185 ;;
1186 nvptx*-*-*)
1187 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1188 ;;
1189 sh-*-*)
1190 case "${target}" in
1191 sh*-*-elf)
1192 ;;
1193 *)
1194 noconfigdirs="$noconfigdirs target-libgloss" ;;
1195 esac
1196 ;;
1197 sparc-*-sunos4*)
1198 if test x${is_cross_compiler} = xno ; then
1199 use_gnu_ld=no
1200 fi
1201 ;;
1202 tic6x-*-*)
1203 noconfigdirs="$noconfigdirs sim"
1204 ;;
1205 tilepro*-*-* | tilegx*-*-*)
1206 noconfigdirs="$noconfigdirs sim"
1207 ;;
1208 v810-*-*)
1209 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1210 ;;
1211 vax-*-*)
1212 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1213 ;;
1214 wasm32-*-*)
1215 noconfigdirs="$noconfigdirs ld"
1216 ;;
1217 esac
1219 # If we aren't building newlib, then don't build libgloss, since libgloss
1220 # depends upon some newlib header files.
1221 case "${noconfigdirs}" in
1222 *target-libgloss*) ;;
1223 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1224 esac
1226 # Work in distributions that contain no compiler tools, like Autoconf.
1227 host_makefile_frag=/dev/null
1228 if test -d ${srcdir}/config ; then
1229 case "${host}" in
1230 i[[3456789]]86-*-msdosdjgpp*)
1231 host_makefile_frag="config/mh-djgpp"
1232 ;;
1233 *-cygwin*)
1234 ACX_CHECK_CYGWIN_CAT_WORKS
1235 host_makefile_frag="config/mh-cygwin"
1236 ;;
1237 *-mingw*)
1238 host_makefile_frag="config/mh-mingw"
1239 ;;
1240 alpha*-linux*)
1241 host_makefile_frag="config/mh-alpha-linux"
1242 ;;
1243 hppa*-hp-hpux10*)
1244 host_makefile_frag="config/mh-pa-hpux10"
1245 ;;
1246 hppa*-hp-hpux*)
1247 host_makefile_frag="config/mh-pa"
1248 ;;
1249 hppa*-*)
1250 host_makefile_frag="config/mh-pa"
1251 ;;
1252 *-*-darwin*)
1253 host_makefile_frag="config/mh-darwin"
1254 ;;
1255 powerpc-*-aix*)
1256 host_makefile_frag="config/mh-ppc-aix"
1257 ;;
1258 rs6000-*-aix*)
1259 host_makefile_frag="config/mh-ppc-aix"
1260 ;;
1261 esac
1262 fi
1264 if test "${build}" != "${host}" ; then
1265 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1266 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1267 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1268 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1269 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1270 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1271 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1272 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1273 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1274 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1275 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1276 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1277 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1278 else
1279 AR_FOR_BUILD="\$(AR)"
1280 AS_FOR_BUILD="\$(AS)"
1281 CC_FOR_BUILD="\$(CC)"
1282 CXX_FOR_BUILD="\$(CXX)"
1283 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1284 GOC_FOR_BUILD="\$(GOC)"
1285 GDC_FOR_BUILD="\$(GDC)"
1286 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1287 LD_FOR_BUILD="\$(LD)"
1288 NM_FOR_BUILD="\$(NM)"
1289 RANLIB_FOR_BUILD="\$(RANLIB)"
1290 WINDRES_FOR_BUILD="\$(WINDRES)"
1291 WINDMC_FOR_BUILD="\$(WINDMC)"
1292 fi
1294 AC_PROG_CC
1295 AC_PROG_CXX
1297 # We must set the default linker to the linker used by gcc for the correct
1298 # operation of libtool. If LD is not defined and we are using gcc, try to
1299 # set the LD default to the ld used by gcc.
1300 if test -z "$LD"; then
1301 if test "$GCC" = yes; then
1302 case $build in
1303 *-*-mingw*)
1304 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1305 *)
1306 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1307 esac
1308 case $gcc_prog_ld in
1309 # Accept absolute paths.
1310 [[\\/]* | [A-Za-z]:[\\/]*)]
1311 LD="$gcc_prog_ld" ;;
1312 esac
1313 fi
1314 fi
1316 # Check whether -static-libstdc++ -static-libgcc is supported.
1317 have_static_libs=no
1318 if test "$GCC" = yes; then
1319 saved_LDFLAGS="$LDFLAGS"
1321 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1322 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1323 AC_LANG_PUSH(C++)
1324 AC_LINK_IFELSE([AC_LANG_SOURCE([
1325 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1326 #error -static-libstdc++ not implemented
1327 #endif
1328 int main() {}])],
1329 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1330 [AC_MSG_RESULT([no])])
1331 AC_LANG_POP(C++)
1333 LDFLAGS="$saved_LDFLAGS"
1334 fi
1336 ACX_PROG_GNAT
1337 ACX_PROG_CMP_IGNORE_INITIAL
1339 AC_ARG_ENABLE([bootstrap],
1340 [AS_HELP_STRING([--enable-bootstrap],
1341 [enable bootstrapping @<:@yes if native build@:>@])],,
1342 enable_bootstrap=default)
1344 # Issue errors and warnings for invalid/strange bootstrap combinations.
1345 if test -r $srcdir/gcc/configure; then
1346 have_compiler=yes
1347 else
1348 have_compiler=no
1349 fi
1351 case "$have_compiler:$host:$target:$enable_bootstrap" in
1352 *:*:*:no) ;;
1354 # Default behavior. Enable bootstrap if we have a compiler
1355 # and we are in a native configuration.
1356 yes:$build:$build:default)
1357 enable_bootstrap=yes ;;
1359 *:*:*:default)
1360 enable_bootstrap=no ;;
1362 # We have a compiler and we are in a native configuration, bootstrap is ok
1363 yes:$build:$build:yes)
1364 ;;
1366 # Other configurations, but we have a compiler. Assume the user knows
1367 # what he's doing.
1368 yes:*:*:yes)
1369 AC_MSG_WARN([trying to bootstrap a cross compiler])
1370 ;;
1372 # No compiler: if they passed --enable-bootstrap explicitly, fail
1373 no:*:*:yes)
1374 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1376 # Fail if wrong command line
1377 *)
1378 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1379 ;;
1380 esac
1382 # When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1383 # C++98 compiler can still start the bootstrap.
1384 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1385 CXX="$CXX -std=gnu++98"
1386 fi
1388 # Used for setting $lt_cv_objdir
1389 _LT_CHECK_OBJDIR
1391 # Check for GMP, MPFR and MPC
1392 gmplibs="-lmpc -lmpfr -lgmp"
1393 gmpinc=
1394 have_gmp=no
1396 # Specify a location for mpc
1397 # check for this first so it ends up on the link line before mpfr.
1398 AC_ARG_WITH(mpc,
1399 [AS_HELP_STRING([--with-mpc=PATH],
1400 [specify prefix directory for installed MPC package.
1401 Equivalent to --with-mpc-include=PATH/include
1402 plus --with-mpc-lib=PATH/lib])])
1403 AC_ARG_WITH(mpc-include,
1404 [AS_HELP_STRING([--with-mpc-include=PATH],
1405 [specify directory for installed MPC include files])])
1406 AC_ARG_WITH(mpc-lib,
1407 [AS_HELP_STRING([--with-mpc-lib=PATH],
1408 [specify directory for the installed MPC library])])
1410 if test "x$with_mpc" != x; then
1411 gmplibs="-L$with_mpc/lib $gmplibs"
1412 gmpinc="-I$with_mpc/include $gmpinc"
1413 fi
1414 if test "x$with_mpc_include" != x; then
1415 gmpinc="-I$with_mpc_include $gmpinc"
1416 fi
1417 if test "x$with_mpc_lib" != x; then
1418 gmplibs="-L$with_mpc_lib $gmplibs"
1419 fi
1420 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1421 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1422 gmpinc='-I$$s/mpc/src '"$gmpinc"
1423 # Do not test the mpc version. Assume that it is sufficient, since
1424 # it is in the source tree, and the library has not been built yet
1425 # but it would be included on the link line in the version check below
1426 # hence making the test fail.
1427 have_gmp=yes
1428 fi
1430 # Specify a location for mpfr
1431 # check for this first so it ends up on the link line before gmp.
1432 AC_ARG_WITH(mpfr-dir,
1433 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1434 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1435 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1437 AC_ARG_WITH(mpfr,
1438 [AS_HELP_STRING([--with-mpfr=PATH],
1439 [specify prefix directory for installed MPFR package.
1440 Equivalent to --with-mpfr-include=PATH/include
1441 plus --with-mpfr-lib=PATH/lib])])
1442 AC_ARG_WITH(mpfr-include,
1443 [AS_HELP_STRING([--with-mpfr-include=PATH],
1444 [specify directory for installed MPFR include files])])
1445 AC_ARG_WITH(mpfr-lib,
1446 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1447 [specify directory for the installed MPFR library])])
1449 if test "x$with_mpfr" != x; then
1450 gmplibs="-L$with_mpfr/lib $gmplibs"
1451 gmpinc="-I$with_mpfr/include $gmpinc"
1452 fi
1453 if test "x$with_mpfr_include" != x; then
1454 gmpinc="-I$with_mpfr_include $gmpinc"
1455 fi
1456 if test "x$with_mpfr_lib" != x; then
1457 gmplibs="-L$with_mpfr_lib $gmplibs"
1458 fi
1459 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1460 # MPFR v3.1.0 moved the sources into a src sub-directory.
1461 if ! test -d ${srcdir}/mpfr/src; then
1462 AC_MSG_ERROR([dnl
1463 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1464 fi
1465 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1466 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1467 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1468 # Do not test the mpfr version. Assume that it is sufficient, since
1469 # it is in the source tree, and the library has not been built yet
1470 # but it would be included on the link line in the version check below
1471 # hence making the test fail.
1472 have_gmp=yes
1473 fi
1475 # Specify a location for gmp
1476 AC_ARG_WITH(gmp-dir,
1477 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1478 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1479 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1481 AC_ARG_WITH(gmp,
1482 [AS_HELP_STRING([--with-gmp=PATH],
1483 [specify prefix directory for the installed GMP package.
1484 Equivalent to --with-gmp-include=PATH/include
1485 plus --with-gmp-lib=PATH/lib])])
1486 AC_ARG_WITH(gmp-include,
1487 [AS_HELP_STRING([--with-gmp-include=PATH],
1488 [specify directory for installed GMP include files])])
1489 AC_ARG_WITH(gmp-lib,
1490 [AS_HELP_STRING([--with-gmp-lib=PATH],
1491 [specify directory for the installed GMP library])])
1494 if test "x$with_gmp" != x; then
1495 gmplibs="-L$with_gmp/lib $gmplibs"
1496 gmpinc="-I$with_gmp/include $gmpinc"
1497 fi
1498 if test "x$with_gmp_include" != x; then
1499 gmpinc="-I$with_gmp_include $gmpinc"
1500 fi
1501 if test "x$with_gmp_lib" != x; then
1502 gmplibs="-L$with_gmp_lib $gmplibs"
1503 fi
1504 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1505 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1506 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1507 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1508 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1509 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1510 # Do not test the gmp version. Assume that it is sufficient, since
1511 # it is in the source tree, and the library has not been built yet
1512 # but it would be included on the link line in the version check below
1513 # hence making the test fail.
1514 have_gmp=yes
1515 fi
1517 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1518 have_gmp=yes
1519 saved_CFLAGS="$CFLAGS"
1520 CFLAGS="$CFLAGS $gmpinc"
1521 # Check for the recommended and required versions of GMP.
1522 AC_MSG_CHECKING([for the correct version of gmp.h])
1523 AC_TRY_COMPILE([#include "gmp.h"],[
1524 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1525 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1526 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1527 choke me
1528 #endif
1529 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1530 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1531 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1532 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1533 choke me
1534 #endif
1535 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1536 [AC_MSG_RESULT([no]); have_gmp=no])
1538 # If we have GMP, check the MPFR version.
1539 if test x"$have_gmp" = xyes; then
1540 # Check for the recommended and required versions of MPFR.
1541 AC_MSG_CHECKING([for the correct version of mpfr.h])
1542 AC_TRY_COMPILE([#include <gmp.h>
1543 #include <mpfr.h>],[
1544 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1545 choke me
1546 #endif
1547 ], [AC_TRY_COMPILE([#include <gmp.h>
1548 #include <mpfr.h>],[
1549 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1550 choke me
1551 #endif
1552 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1553 [AC_MSG_RESULT([no]); have_gmp=no])
1554 fi
1556 # Check for the MPC header version.
1557 if test x"$have_gmp" = xyes ; then
1558 # Check for the recommended and required versions of MPC.
1559 AC_MSG_CHECKING([for the correct version of mpc.h])
1560 AC_TRY_COMPILE([#include <mpc.h>],[
1561 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1562 choke me
1563 #endif
1564 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1565 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1566 choke me
1567 #endif
1568 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1569 [AC_MSG_RESULT([no]); have_gmp=no])
1570 fi
1572 # Now check the MPFR library.
1573 if test x"$have_gmp" = xyes; then
1574 saved_LIBS="$LIBS"
1575 LIBS="$LIBS $gmplibs"
1576 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1577 AC_TRY_LINK([#include <mpc.h>],[
1578 mpfr_t n;
1579 mpfr_t x;
1580 mpc_t c;
1581 int t;
1582 mpfr_init (n);
1583 mpfr_init (x);
1584 mpfr_atan2 (n, n, x, GMP_RNDN);
1585 mpfr_erfc (n, x, GMP_RNDN);
1586 mpfr_subnormalize (x, t, GMP_RNDN);
1587 mpfr_clear(n);
1588 mpfr_clear(x);
1589 mpc_init2 (c, 53);
1590 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1591 mpc_cosh (c, c, MPC_RNDNN);
1592 mpc_pow (c, c, c, MPC_RNDNN);
1593 mpc_acosh (c, c, MPC_RNDNN);
1594 mpc_clear (c);
1595 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1596 LIBS="$saved_LIBS"
1597 fi
1599 CFLAGS="$saved_CFLAGS"
1601 # The library versions listed in the error message below should match
1602 # the HARD-minimums enforced above.
1603 if test x$have_gmp != xyes; then
1604 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1605 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1606 their locations. Source code for these libraries can be found at
1607 their respective hosting sites as well as at
1608 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1609 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1610 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1611 make sure that you have installed both the libraries and the header
1612 files. They may be located in separate packages.])
1613 fi
1614 fi
1616 # Flags needed for both GMP, MPFR and/or MPC.
1617 AC_SUBST(gmplibs)
1618 AC_SUBST(gmpinc)
1619 AC_SUBST(extra_mpfr_configure_flags)
1620 AC_SUBST(extra_mpc_gmp_configure_flags)
1621 AC_SUBST(extra_mpc_mpfr_configure_flags)
1622 AC_SUBST(extra_isl_gmp_configure_flags)
1624 # Libraries to use for stage1 or when not bootstrapping.
1625 AC_ARG_WITH(stage1-libs,
1626 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1627 [if test "$withval" = "no" -o "$withval" = "yes"; then
1628 stage1_libs=
1629 else
1630 stage1_libs=$withval
1631 fi],
1632 [stage1_libs=])
1633 AC_SUBST(stage1_libs)
1635 # Linker flags to use for stage1 or when not bootstrapping.
1636 AC_ARG_WITH(stage1-ldflags,
1637 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1638 [if test "$withval" = "no" -o "$withval" = "yes"; then
1639 stage1_ldflags=
1640 else
1641 stage1_ldflags=$withval
1642 fi],
1643 [stage1_ldflags=
1644 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1645 # if supported. But if the user explicitly specified the libraries to use,
1646 # trust that they are doing what they want.
1647 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1648 stage1_ldflags="-static-libstdc++ -static-libgcc"
1649 fi])
1650 AC_SUBST(stage1_ldflags)
1652 # Libraries to use for stage2 and later builds.
1653 AC_ARG_WITH(boot-libs,
1654 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1655 [if test "$withval" = "no" -o "$withval" = "yes"; then
1656 poststage1_libs=
1657 else
1658 poststage1_libs=$withval
1659 fi],
1660 [poststage1_libs=])
1661 AC_SUBST(poststage1_libs)
1663 # Linker flags to use for stage2 and later builds.
1664 AC_ARG_WITH(boot-ldflags,
1665 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1666 [linker flags for stage2 and later])],
1667 [if test "$withval" = "no" -o "$withval" = "yes"; then
1668 poststage1_ldflags=
1669 else
1670 poststage1_ldflags=$withval
1671 fi],
1672 [poststage1_ldflags=
1673 # In stages 2 and 3, default to linking libstdc++ and libgcc
1674 # statically. But if the user explicitly specified the libraries to
1675 # use, trust that they are doing what they want.
1676 if test "$poststage1_libs" = ""; then
1677 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1678 fi])
1679 AC_SUBST(poststage1_ldflags)
1681 # GCC GRAPHITE dependency isl.
1682 # Basic setup is inlined here, actual checks are in config/isl.m4
1684 AC_ARG_WITH(isl,
1685 [AS_HELP_STRING(
1686 [--with-isl=PATH],
1687 [Specify prefix directory for the installed isl package.
1688 Equivalent to --with-isl-include=PATH/include
1689 plus --with-isl-lib=PATH/lib])])
1691 # Treat --without-isl as a request to disable
1692 # GRAPHITE support and skip all following checks.
1693 if test "x$with_isl" != "xno"; then
1694 # Check for isl
1695 dnl Provide configure switches and initialize islinc & isllibs
1696 dnl with user input.
1697 ISL_INIT_FLAGS
1698 dnl The versions of isl that work for Graphite
1699 ISL_CHECK_VERSION()
1700 dnl Only execute fail-action, if isl has been requested.
1701 ISL_IF_FAILED([
1702 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1703 fi
1705 # If the isl check failed, disable builds of in-tree variant of isl
1706 if test "x$with_isl" = xno ||
1707 test "x$gcc_cv_isl" = xno; then
1708 noconfigdirs="$noconfigdirs isl"
1709 islinc=
1710 fi
1712 AC_SUBST(isllibs)
1713 AC_SUBST(islinc)
1715 # Check for LTO support.
1716 AC_ARG_ENABLE(lto,
1717 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1718 enable_lto=$enableval,
1719 enable_lto=yes; default_enable_lto=yes)
1721 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1722 build_lto_plugin=yes
1723 ],[if test x"$default_enable_lto" = x"yes" ; then
1724 case $target in
1725 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1726 # On other non-ELF platforms, LTO has yet to be validated.
1727 *) enable_lto=no ;;
1728 esac
1729 else
1730 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1731 # It would also be nice to check the binutils support, but we don't
1732 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1733 # warn during gcc/ subconfigure; unless you're bootstrapping with
1734 # -flto it won't be needed until after installation anyway.
1735 case $target in
1736 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1737 *) if test x"$enable_lto" = x"yes"; then
1738 AC_MSG_ERROR([LTO support is not enabled for this target.])
1739 fi
1740 ;;
1741 esac
1742 fi
1743 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1744 # Build it unless LTO was explicitly disabled.
1745 case $target in
1746 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1747 *) ;;
1748 esac
1749 ])
1751 AC_ARG_ENABLE(linker-plugin-configure-flags,
1752 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1753 [additional flags for configuring linker plugins @<:@none@:>@])],
1754 extra_linker_plugin_configure_flags=$enableval,
1755 extra_linker_plugin_configure_flags=)
1756 AC_SUBST(extra_linker_plugin_configure_flags)
1757 AC_ARG_ENABLE(linker-plugin-flags,
1758 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1759 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1760 extra_linker_plugin_flags=$enableval,
1761 extra_linker_plugin_flags=)
1762 AC_SUBST(extra_linker_plugin_flags)
1764 # Enable --enable-host-shared.
1765 # Checked early to determine whether jit is an 'all' language
1766 AC_ARG_ENABLE(host-shared,
1767 [AS_HELP_STRING([--enable-host-shared],
1768 [build host code as shared libraries])],
1769 [host_shared=$enableval], [host_shared=no])
1770 AC_SUBST(host_shared)
1772 # By default, C and C++ are the only stage 1 languages.
1773 stage1_languages=,c,
1775 # Target libraries that we bootstrap.
1776 bootstrap_target_libs=,target-libgcc,
1778 # Figure out what language subdirectories are present.
1779 # Look if the user specified --enable-languages="..."; if not, use
1780 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1781 # go away some day.
1782 # NB: embedded tabs in this IF block -- do not untabify
1783 if test -d ${srcdir}/gcc; then
1784 if test x"${enable_languages+set}" != xset; then
1785 if test x"${LANGUAGES+set}" = xset; then
1786 enable_languages="${LANGUAGES}"
1787 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1788 else
1789 enable_languages=default
1790 fi
1791 else
1792 if test x"${enable_languages}" = x ||
1793 test x"${enable_languages}" = xyes;
1794 then
1795 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1796 exit 1
1797 fi
1798 fi
1799 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1801 # 'f95' is the old name for the 'fortran' language. We issue a warning
1802 # and make the substitution.
1803 case ,${enable_languages}, in
1804 *,f95,*)
1805 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1806 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1807 ;;
1808 esac
1810 # If bootstrapping, C++ must be enabled.
1811 case ",$enable_languages,:$enable_bootstrap" in
1812 *,c++,*:*) ;;
1813 *:yes)
1814 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1815 enable_languages="${enable_languages},c++"
1816 else
1817 AC_MSG_ERROR([bootstrapping requires c++ sources])
1818 fi
1819 ;;
1820 esac
1822 # First scan to see if an enabled language requires some other language.
1823 # We assume that a given config-lang.in will list all the language
1824 # front ends it requires, even if some are required indirectly.
1825 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1826 case ${lang_frag} in
1827 ..) ;;
1828 # The odd quoting in the next line works around
1829 # an apparent bug in bash 1.12 on linux.
1830 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1831 *)
1832 # From the config-lang.in, get $language, $lang_requires, and
1833 # $lang_requires_boot_languages.
1834 language=
1835 lang_requires=
1836 lang_requires_boot_languages=
1837 # set srcdir during sourcing lang_frag to the gcc dir.
1838 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1839 # polutes this shell
1840 saved_srcdir=${srcdir}
1841 srcdir=${srcdir}/gcc . ${lang_frag}
1842 srcdir=${saved_srcdir}
1843 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1844 case ,${enable_languages}, in
1845 *,$other,*) ;;
1846 *,default,*) ;;
1847 *,all,*) ;;
1848 *,$language,*)
1849 echo " \`$other' language required by \`$language'; enabling" 1>&2
1850 enable_languages="${enable_languages},${other}"
1851 ;;
1852 esac
1853 done
1854 for other in ${lang_requires_boot_languages} ; do
1855 if test "$other" != "c"; then
1856 case ,${enable_stage1_languages}, in
1857 *,$other,*) ;;
1858 *,default,*) ;;
1859 *,all,*) ;;
1860 *)
1861 case ,${enable_languages}, in
1862 *,$language,*)
1863 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1864 enable_stage1_languages="$enable_stage1_languages,${other}"
1865 ;;
1866 esac
1867 ;;
1868 esac
1869 fi
1870 done
1871 ;;
1872 esac
1873 done
1875 new_enable_languages=,c,
1877 # If LTO is enabled, add the LTO front end.
1878 if test "$enable_lto" = "yes" ; then
1879 case ,${enable_languages}, in
1880 *,lto,*) ;;
1881 *) enable_languages="${enable_languages},lto" ;;
1882 esac
1883 if test "${build_lto_plugin}" = "yes" ; then
1884 configdirs="$configdirs lto-plugin"
1885 fi
1886 fi
1888 # If we're building an offloading compiler, add the LTO front end.
1889 if test x"$enable_as_accelerator_for" != x ; then
1890 case ,${enable_languages}, in
1891 *,lto,*) ;;
1892 *) enable_languages="${enable_languages},lto" ;;
1893 esac
1894 fi
1896 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
1897 potential_languages=,c,
1899 enabled_target_libs=
1900 disabled_target_libs=
1902 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1903 case ${lang_frag} in
1904 ..) ;;
1905 # The odd quoting in the next line works around
1906 # an apparent bug in bash 1.12 on linux.
1907 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1908 *)
1909 # From the config-lang.in, get $language, $target_libs,
1910 # $lang_dirs, $boot_language, and $build_by_default
1911 language=
1912 target_libs=
1913 lang_dirs=
1914 subdir_requires=
1915 boot_language=no
1916 build_by_default=yes
1917 # set srcdir during sourcing. See above about save & restore
1918 saved_srcdir=${srcdir}
1919 srcdir=${srcdir}/gcc . ${lang_frag}
1920 srcdir=${saved_srcdir}
1921 if test x${language} = x; then
1922 echo "${lang_frag} doesn't set \$language." 1>&2
1923 exit 1
1924 fi
1926 if test "$language" = "c++"; then
1927 boot_language=yes
1928 fi
1930 add_this_lang=no
1931 # C is always enabled, so no need to add it again
1932 if test "$language" != "c"; then
1933 case ,${enable_languages}, in
1934 *,${language},*)
1935 # Language was explicitly selected; include it
1936 add_this_lang=yes
1937 ;;
1938 *,all,*)
1939 # All languages are enabled
1940 add_this_lang=all
1941 ;;
1942 *,default,*)
1943 # 'default' was selected, select it if it is a default language
1944 add_this_lang=${build_by_default}
1945 ;;
1946 esac
1947 fi
1949 # Disable languages that need other directories if these aren't available.
1950 for i in $subdir_requires; do
1951 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1952 case ${add_this_lang} in
1953 yes)
1954 # Specifically requested language; tell them.
1955 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1956 ;;
1957 all)
1958 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
1959 add_this_lang=unsupported
1960 ;;
1961 *)
1962 # Silently disable.
1963 add_this_lang=unsupported
1964 ;;
1965 esac
1966 done
1968 # Disable Ada if no preexisting GNAT is available.
1969 case ${add_this_lang}:${language}:${have_gnat} in
1970 yes:ada:no)
1971 # Specifically requested language; tell them.
1972 AC_MSG_ERROR([GNAT is required to build $language])
1973 ;;
1974 all:ada:no)
1975 AC_MSG_WARN([GNAT is required to build $language])
1976 add_this_lang=unsupported
1977 ;;
1978 *:ada:no)
1979 # Silently disable.
1980 add_this_lang=unsupported
1981 ;;
1982 esac
1984 # Disable jit if -enable-host-shared not specified
1985 case ${add_this_lang}:${language}:${host_shared} in
1986 yes:jit:no)
1987 # PR jit/64780: explicitly specify --enable-host-shared
1988 AC_MSG_ERROR([
1989 Enabling language "jit" requires --enable-host-shared.
1991 --enable-host-shared typically slows the rest of the compiler down by
1992 a few %, so you must explicitly enable it.
1994 If you want to build both the jit and the regular compiler, it is often
1995 best to do this via two separate configure/builds, in separate
1996 directories, to avoid imposing the performance cost of
1997 --enable-host-shared on the regular compiler.])
1998 ;;
1999 all:jit:no)
2000 AC_MSG_WARN([--enable-host-shared required to build $language])
2001 add_this_lang=unsupported
2002 ;;
2003 *:jit:no)
2004 # Silently disable.
2005 add_this_lang=unsupported
2006 ;;
2007 esac
2009 # Disable a language that is unsupported by the target.
2010 case "${add_this_lang}: $unsupported_languages " in
2011 no:*) ;;
2012 unsupported:*) ;;
2013 *:*" $language "*)
2014 AC_MSG_WARN([${language} not supported for this target])
2015 add_this_lang=unsupported
2016 ;;
2017 esac
2019 case $add_this_lang in
2020 unsupported)
2021 # Remove language-dependent dirs.
2022 disabled_target_libs="$disabled_target_libs $target_libs"
2023 noconfigdirs="$noconfigdirs $lang_dirs"
2024 ;;
2025 no)
2026 # Remove language-dependent dirs; still show language as supported.
2027 disabled_target_libs="$disabled_target_libs $target_libs"
2028 noconfigdirs="$noconfigdirs $lang_dirs"
2029 potential_languages="${potential_languages}${language},"
2030 ;;
2031 all|yes)
2032 new_enable_languages="${new_enable_languages}${language},"
2033 potential_languages="${potential_languages}${language},"
2034 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2035 enabled_target_libs="$enabled_target_libs $target_libs"
2036 case "${boot_language}:,$enable_stage1_languages," in
2037 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2038 # Add to (comma-separated) list of stage 1 languages.
2039 case ",$stage1_languages," in
2040 *,$language,* | ,yes, | ,all,) ;;
2041 *) stage1_languages="${stage1_languages}${language}," ;;
2042 esac
2043 # We need to bootstrap any supporting libraries.
2044 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2045 ;;
2046 esac
2047 ;;
2048 esac
2049 ;;
2050 esac
2051 done
2053 # Add target libraries which are only needed for disabled languages
2054 # to noconfigdirs.
2055 if test -n "$disabled_target_libs"; then
2056 for dir in $disabled_target_libs; do
2057 case " $enabled_target_libs " in
2058 *" ${dir} "*) ;;
2059 *) noconfigdirs="$noconfigdirs $dir" ;;
2060 esac
2061 done
2062 fi
2064 AC_ARG_ENABLE(stage1-languages,
2065 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2066 [choose additional languages to build during
2067 stage1. Mostly useful for compiler development])],
2068 [case ,${enable_stage1_languages}, in
2069 ,no,|,,)
2070 # Set it to something that will have no effect in the loop below
2071 enable_stage1_languages=c ;;
2072 ,yes,)
2073 enable_stage1_languages=`echo $new_enable_languages | \
2074 sed -e "s/^,//" -e "s/,$//" ` ;;
2075 *,all,*)
2076 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2077 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2078 esac
2080 # Add "good" languages from enable_stage1_languages to stage1_languages,
2081 # while "bad" languages go in missing_languages. Leave no duplicates.
2082 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2083 case $potential_languages in
2084 *,$i,*)
2085 case $stage1_languages in
2086 *,$i,*) ;;
2087 *) stage1_languages="$stage1_languages$i," ;;
2088 esac ;;
2089 *)
2090 case $missing_languages in
2091 *,$i,*) ;;
2092 *) missing_languages="$missing_languages$i," ;;
2093 esac ;;
2094 esac
2095 done])
2097 # Remove leading/trailing commas that were added for simplicity
2098 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2099 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2100 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2101 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2103 if test "x$missing_languages" != x; then
2104 AC_MSG_ERROR([
2105 The following requested languages could not be built: ${missing_languages}
2106 Supported languages are: ${potential_languages}])
2107 fi
2108 if test "x$new_enable_languages" != "x$enable_languages"; then
2109 echo The following languages will be built: ${new_enable_languages}
2110 enable_languages="$new_enable_languages"
2111 fi
2113 AC_SUBST(stage1_languages)
2114 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2115 fi
2117 # Handle --disable-<component> generically.
2118 for dir in $configdirs $build_configdirs $target_configdirs ; do
2119 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2120 varname=`echo $dirname | sed -e s/+/_/g`
2121 if eval test x\${enable_${varname}} "=" xno ; then
2122 noconfigdirs="$noconfigdirs $dir"
2123 fi
2124 done
2126 # Check for Boehm's garbage collector
2127 AC_ARG_ENABLE(objc-gc,
2128 [AS_HELP_STRING([--enable-objc-gc],
2129 [enable use of Boehm's garbage collector with the
2130 GNU Objective-C runtime])])
2131 AC_ARG_WITH([target-bdw-gc],
2132 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2133 [specify prefix directory for installed bdw-gc package.
2134 Equivalent to --with-target-bdw-gc-include=PATH/include
2135 plus --with-target-bdw-gc-lib=PATH/lib])])
2136 AC_ARG_WITH([target-bdw-gc-include],
2137 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2138 [specify directories for installed bdw-gc include files])])
2139 AC_ARG_WITH([target-bdw-gc-lib],
2140 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2141 [specify directories for installed bdw-gc library])])
2143 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2144 AC_MSG_CHECKING([for bdw garbage collector])
2145 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2146 dnl no bdw-gw options, assume default locations
2147 AC_MSG_RESULT([using bdw-gc in default locations])
2148 else
2149 dnl bdw-gw options, first error checking, complete checking in libobjc
2150 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2151 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2152 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2153 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2154 else
2155 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2156 fi
2157 fi
2158 esac
2160 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2161 case ,${enable_languages}, in
2162 *,c++,*)
2163 # Disable libitm, libsanitizer if we're not building libstdc++
2164 case "${noconfigdirs}" in
2165 *target-libstdc++-v3*)
2166 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2167 ;;
2168 *) ;;
2169 esac
2170 ;;
2171 *)
2172 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2173 ;;
2174 esac
2176 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2177 # $build_configdirs and $target_configdirs.
2178 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2180 notsupp=""
2181 for dir in . $skipdirs $noconfigdirs ; do
2182 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2183 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2184 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2185 if test -r $srcdir/$dirname/configure ; then
2186 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2187 true
2188 else
2189 notsupp="$notsupp $dir"
2190 fi
2191 fi
2192 fi
2193 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2194 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2195 if test -r $srcdir/$dirname/configure ; then
2196 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2197 true
2198 else
2199 notsupp="$notsupp $dir"
2200 fi
2201 fi
2202 fi
2203 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2204 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2205 if test -r $srcdir/$dirname/configure ; then
2206 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2207 true
2208 else
2209 notsupp="$notsupp $dir"
2210 fi
2211 fi
2212 fi
2213 done
2215 # Quietly strip out all directories which aren't configurable in this tree.
2216 # This relies on all configurable subdirectories being autoconfiscated, which
2217 # is now the case.
2218 build_configdirs_all="$build_configdirs"
2219 build_configdirs=
2220 for i in ${build_configdirs_all} ; do
2221 j=`echo $i | sed -e s/build-//g`
2222 if test -f ${srcdir}/$j/configure ; then
2223 build_configdirs="${build_configdirs} $i"
2224 fi
2225 done
2227 configdirs_all="$configdirs"
2228 configdirs=
2229 for i in ${configdirs_all} ; do
2230 if test -f ${srcdir}/$i/configure ; then
2231 configdirs="${configdirs} $i"
2232 fi
2233 done
2235 target_configdirs_all="$target_configdirs"
2236 target_configdirs=
2237 for i in ${target_configdirs_all} ; do
2238 j=`echo $i | sed -e s/target-//g`
2239 if test -f ${srcdir}/$j/configure ; then
2240 target_configdirs="${target_configdirs} $i"
2241 fi
2242 done
2244 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2245 # so we have to add it after the preceding checks.
2246 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2247 then
2248 case " $configdirs " in
2249 *" libiberty "*)
2250 # If we can build libiberty, we can also build libiberty-linker-plugin.
2251 configdirs="$configdirs libiberty-linker-plugin"
2252 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2253 --with-libiberty=../libiberty-linker-plugin";;
2254 *)
2255 AC_MSG_ERROR([libiberty missing]);;
2256 esac
2257 fi
2259 # Sometimes we have special requirements for the host libiberty.
2260 extra_host_libiberty_configure_flags=
2261 extra_host_zlib_configure_flags=
2262 case " $configdirs " in
2263 *" lto-plugin "* | *" libcc1 "*)
2264 # When these are to be built as shared libraries, the same applies to
2265 # libiberty.
2266 extra_host_libiberty_configure_flags=--enable-shared
2267 ;;
2268 *" bfd "*)
2269 # When bfd is to be built as a shared library, the same applies to
2270 # zlib.
2271 if test "$enable_shared" = "yes"; then
2272 extra_host_zlib_configure_flags=--enable-host-shared
2273 fi
2274 ;;
2275 esac
2276 AC_SUBST(extra_host_libiberty_configure_flags)
2277 AC_SUBST(extra_host_zlib_configure_flags)
2279 # Produce a warning message for the subdirs we can't configure.
2280 # This isn't especially interesting in the Cygnus tree, but in the individual
2281 # FSF releases, it's important to let people know when their machine isn't
2282 # supported by the one or two programs in a package.
2284 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2285 # If $appdirs is non-empty, at least one of those directories must still
2286 # be configured, or we error out. (E.g., if the gas release supports a
2287 # specified target in some subdirs but not the gas subdir, we shouldn't
2288 # pretend that all is well.)
2289 if test -n "$appdirs" ; then
2290 for dir in $appdirs ; do
2291 if test -r $dir/Makefile.in ; then
2292 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2293 appdirs=""
2294 break
2295 fi
2296 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2297 appdirs=""
2298 break
2299 fi
2300 fi
2301 done
2302 if test -n "$appdirs" ; then
2303 echo "*** This configuration is not supported by this package." 1>&2
2304 exit 1
2305 fi
2306 fi
2307 # Okay, some application will build, or we don't care to check. Still
2308 # notify of subdirs not getting built.
2309 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2310 echo " ${notsupp}" 1>&2
2311 echo " (Any other directories should still work fine.)" 1>&2
2312 fi
2314 case "$host" in
2315 *msdosdjgpp*)
2316 enable_gdbtk=no ;;
2317 esac
2319 # To find our prefix, in gcc_cv_tool_prefix.
2320 ACX_TOOL_DIRS
2322 copy_dirs=
2324 AC_ARG_WITH([build-sysroot],
2325 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2326 [use sysroot as the system root during the build])],
2327 [if test x"$withval" != x ; then
2328 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2329 fi],
2330 [SYSROOT_CFLAGS_FOR_TARGET=])
2331 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2333 AC_ARG_WITH([debug-prefix-map],
2334 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2335 [map A to B, C to D ... in debug information])],
2336 [if test x"$withval" != x; then
2337 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2338 for debug_map in $withval; do
2339 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2340 done
2341 fi],
2342 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2343 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2345 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2346 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2347 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2348 # We want to ensure that TARGET libraries (which we know are built with
2349 # gcc) are built with "-O2 -g", so include those options when setting
2350 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2351 if test "x$CFLAGS_FOR_TARGET" = x; then
2352 if test "x${is_cross_compiler}" = xyes; then
2353 CFLAGS_FOR_TARGET="-g -O2"
2354 else
2355 CFLAGS_FOR_TARGET=$CFLAGS
2356 case " $CFLAGS " in
2357 *" -O2 "*) ;;
2358 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2359 esac
2360 case " $CFLAGS " in
2361 *" -g "* | *" -g3 "*) ;;
2362 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2363 esac
2364 fi
2365 fi
2366 AC_SUBST(CFLAGS_FOR_TARGET)
2368 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2369 if test "x${is_cross_compiler}" = xyes; then
2370 CXXFLAGS_FOR_TARGET="-g -O2"
2371 else
2372 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2373 case " $CXXFLAGS " in
2374 *" -O2 "*) ;;
2375 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2376 esac
2377 case " $CXXFLAGS " in
2378 *" -g "* | *" -g3 "*) ;;
2379 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2380 esac
2381 fi
2382 fi
2383 AC_SUBST(CXXFLAGS_FOR_TARGET)
2385 AC_SUBST(LDFLAGS_FOR_TARGET)
2387 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2388 # the named directory are copied to $(tooldir)/sys-include.
2389 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2390 if test x${is_cross_compiler} = xno ; then
2391 echo 1>&2 '***' --with-headers is only supported when cross compiling
2392 exit 1
2393 fi
2394 if test x"${with_headers}" != xyes ; then
2395 x=${gcc_cv_tool_prefix}
2396 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2397 fi
2398 fi
2400 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2401 # the name directories are copied to $(tooldir)/lib. Multiple directories
2402 # are permitted.
2403 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2404 if test x${is_cross_compiler} = xno ; then
2405 echo 1>&2 '***' --with-libs is only supported when cross compiling
2406 exit 1
2407 fi
2408 if test x"${with_libs}" != xyes ; then
2409 # Copy the libraries in reverse order, so that files in the first named
2410 # library override files in subsequent libraries.
2411 x=${gcc_cv_tool_prefix}
2412 for l in ${with_libs}; do
2413 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2414 done
2415 fi
2416 fi
2418 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2419 #
2420 # This is done by determining whether or not the appropriate directory
2421 # is available, and by checking whether or not specific configurations
2422 # have requested that this magic not happen.
2423 #
2424 # The command line options always override the explicit settings in
2425 # configure.ac, and the settings in configure.ac override this magic.
2426 #
2427 # If the default for a toolchain is to use GNU as and ld, and you don't
2428 # want to do that, then you should use the --without-gnu-as and
2429 # --without-gnu-ld options for the configure script. Similarly, if
2430 # the default is to use the included zlib and you don't want to do that,
2431 # you should use the --with-system-zlib option for the configure script.
2433 if test x${use_gnu_as} = x &&
2434 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2435 with_gnu_as=yes
2436 extra_host_args="$extra_host_args --with-gnu-as"
2437 fi
2439 if test x${use_gnu_ld} = x &&
2440 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2441 with_gnu_ld=yes
2442 extra_host_args="$extra_host_args --with-gnu-ld"
2443 fi
2445 if test x${use_included_zlib} = x &&
2446 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2447 :
2448 else
2449 with_system_zlib=yes
2450 extra_host_args="$extra_host_args --with-system-zlib"
2451 fi
2453 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2454 # can detect this case.
2456 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2457 with_newlib=yes
2458 extra_host_args="$extra_host_args --with-newlib"
2459 fi
2461 # Handle ${copy_dirs}
2462 set fnord ${copy_dirs}
2463 shift
2464 while test $# != 0 ; do
2465 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2466 :
2467 else
2468 echo Copying $1 to $2
2470 # Use the install script to create the directory and all required
2471 # parent directories.
2472 if test -d $2 ; then
2473 :
2474 else
2475 echo >config.temp
2476 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2477 fi
2479 # Copy the directory, assuming we have tar.
2480 # FIXME: Should we use B in the second tar? Not all systems support it.
2481 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2483 # It is the responsibility of the user to correctly adjust all
2484 # symlinks. If somebody can figure out how to handle them correctly
2485 # here, feel free to add the code.
2487 echo $1 > $2/COPIED
2488 fi
2489 shift; shift
2490 done
2492 # Determine a target-dependent exec_prefix that the installed
2493 # gcc will search in. Keep this list sorted by triplet, with
2494 # the *-*-osname triplets last.
2495 md_exec_prefix=
2496 case "${target}" in
2497 i[[34567]]86-pc-msdosdjgpp*)
2498 md_exec_prefix=/dev/env/DJDIR/bin
2499 ;;
2500 *-*-hpux* | \
2501 *-*-nto-qnx* | \
2502 *-*-solaris2*)
2503 md_exec_prefix=/usr/ccs/bin
2504 ;;
2505 esac
2507 extra_arflags_for_target=
2508 extra_nmflags_for_target=
2509 extra_ranlibflags_for_target=
2510 target_makefile_frag=/dev/null
2511 case "${target}" in
2512 spu-*-*)
2513 target_makefile_frag="config/mt-spu"
2514 ;;
2515 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2516 target_makefile_frag="config/mt-sde"
2517 ;;
2518 mipsisa*-*-elfoabi*)
2519 target_makefile_frag="config/mt-mips-elfoabi"
2520 ;;
2521 mips*-*-*linux* | mips*-*-gnu*)
2522 target_makefile_frag="config/mt-mips-gnu"
2523 ;;
2524 nios2-*-elf*)
2525 target_makefile_frag="config/mt-nios2-elf"
2526 ;;
2527 *-*-linux-android*)
2528 target_makefile_frag="config/mt-android"
2529 ;;
2530 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2531 target_makefile_frag="config/mt-gnu"
2532 ;;
2533 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2534 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2535 # commands to handle both 32-bit and 64-bit objects. These flags are
2536 # harmless if we're using GNU nm or ar.
2537 extra_arflags_for_target=" -X32_64"
2538 extra_nmflags_for_target=" -B -X32_64"
2539 ;;
2540 esac
2542 alphaieee_frag=/dev/null
2543 case $target in
2544 alpha*-*-*)
2545 # This just makes sure to use the -mieee option to build target libs.
2546 # This should probably be set individually by each library.
2547 alphaieee_frag="config/mt-alphaieee"
2548 ;;
2549 esac
2551 # If --enable-target-optspace always use -Os instead of -O2 to build
2552 # the target libraries, similarly if it is not specified, use -Os
2553 # on selected platforms.
2554 ospace_frag=/dev/null
2555 case "${enable_target_optspace}:${target}" in
2556 yes:*)
2557 ospace_frag="config/mt-ospace"
2558 ;;
2559 :d30v-*)
2560 ospace_frag="config/mt-d30v"
2561 ;;
2562 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2563 ospace_frag="config/mt-ospace"
2564 ;;
2565 no:* | :*)
2566 ;;
2567 *)
2568 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2569 ;;
2570 esac
2572 # Some systems (e.g., one of the i386-aix systems the gas testers are
2573 # using) don't handle "\$" correctly, so don't use it here.
2574 tooldir='${exec_prefix}'/${target_noncanonical}
2575 build_tooldir=${tooldir}
2577 # Create a .gdbinit file which runs the one in srcdir
2578 # and tells GDB to look there for source files.
2580 if test -r ${srcdir}/.gdbinit ; then
2581 case ${srcdir} in
2582 .) ;;
2583 *) cat > ./.gdbinit <<EOF
2584 # ${NO_EDIT}
2585 dir ${srcdir}
2586 dir .
2587 source ${srcdir}/.gdbinit
2588 EOF
2589 ;;
2590 esac
2591 fi
2593 # Make sure that the compiler is able to generate an executable. If it
2594 # can't, we are probably in trouble. We don't care whether we can run the
2595 # executable--we might be using a cross compiler--we only care whether it
2596 # can be created. At this point the main configure script has set CC.
2597 we_are_ok=no
2598 echo "int main () { return 0; }" > conftest.c
2599 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2600 if test $? = 0 ; then
2601 if test -s conftest || test -s conftest.exe ; then
2602 we_are_ok=yes
2603 fi
2604 fi
2605 case $we_are_ok in
2606 no)
2607 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2608 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2609 rm -f conftest*
2610 exit 1
2611 ;;
2612 esac
2613 rm -f conftest*
2615 # Decide which environment variable is used to find dynamic libraries.
2616 case "${host}" in
2617 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2618 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2619 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2620 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2621 esac
2623 # On systems where the dynamic library environment variable is PATH,
2624 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2625 # built executables to PATH.
2626 if test "$RPATH_ENVVAR" = PATH; then
2627 GCC_SHLIB_SUBDIR=/shlib
2628 else
2629 GCC_SHLIB_SUBDIR=
2630 fi
2632 # Adjust the toplevel makefile according to whether bootstrap was selected.
2633 case $enable_bootstrap in
2634 yes)
2635 bootstrap_suffix=bootstrap
2636 BUILD_CONFIG=bootstrap-debug
2637 ;;
2638 no)
2639 bootstrap_suffix=no-bootstrap
2640 BUILD_CONFIG=
2641 ;;
2642 esac
2644 AC_MSG_CHECKING(for default BUILD_CONFIG)
2646 AC_ARG_WITH([build-config],
2647 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2648 [use config/NAME.mk build configuration])],
2649 [case $with_build_config in
2650 yes) with_build_config= ;;
2651 no) with_build_config= BUILD_CONFIG= ;;
2652 esac])
2654 if test "x${with_build_config}" != x; then
2655 BUILD_CONFIG=$with_build_config
2656 else
2657 case $BUILD_CONFIG in
2658 bootstrap-debug)
2659 if echo "int f (void) { return 0; }" > conftest.c &&
2660 ${CC} -c conftest.c &&
2661 mv conftest.o conftest.o.g0 &&
2662 ${CC} -c -g conftest.c &&
2663 mv conftest.o conftest.o.g &&
2664 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2665 :
2666 else
2667 BUILD_CONFIG=
2668 fi
2669 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2670 ;;
2671 esac
2672 fi
2673 AC_MSG_RESULT($BUILD_CONFIG)
2674 AC_SUBST(BUILD_CONFIG)
2676 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2677 AC_MSG_CHECKING([for --enable-vtable-verify])
2678 AC_ARG_ENABLE(vtable-verify,
2679 [AS_HELP_STRING([--enable-vtable-verify],
2680 [Enable vtable verification feature])],
2681 [case "$enableval" in
2682 yes) enable_vtable_verify=yes ;;
2683 no) enable_vtable_verify=no ;;
2684 *) enable_vtable_verify=no;;
2685 esac],
2686 [enable_vtable_verify=no])
2687 AC_MSG_RESULT($enable_vtable_verify)
2689 # Record target_configdirs and the configure arguments for target and
2690 # build configuration in Makefile.
2691 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2692 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2693 bootstrap_fixincludes=no
2695 # If we are building libgomp, bootstrap it.
2696 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2697 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2698 fi
2700 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2701 # or bootstrap-ubsan, bootstrap it.
2702 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2703 case "$BUILD_CONFIG" in
2704 *bootstrap-asan* | *bootstrap-ubsan* )
2705 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2706 bootstrap_fixincludes=yes
2707 ;;
2708 esac
2709 fi
2711 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2712 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2713 test "$enable_vtable_verify" != no; then
2714 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2715 fi
2717 # Determine whether gdb needs tk/tcl or not.
2718 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2719 # and in that case we want gdb to be built without tk. Ugh!
2720 # In fact I believe gdb is the *only* package directly dependent on tk,
2721 # so we should be able to put the 'maybe's in unconditionally and
2722 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2723 # 100% sure that that's safe though.
2725 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2726 case "$enable_gdbtk" in
2727 no)
2728 GDB_TK="" ;;
2729 yes)
2730 GDB_TK="${gdb_tk}" ;;
2731 *)
2732 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2733 # distro. Eventually someone will fix this and move Insight, nee
2734 # gdbtk to a separate directory.
2735 if test -d ${srcdir}/gdb/gdbtk ; then
2736 GDB_TK="${gdb_tk}"
2737 else
2738 GDB_TK=""
2739 fi
2740 ;;
2741 esac
2742 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2743 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2745 # Strip out unwanted targets.
2747 # While at that, we remove Makefiles if we were started for recursive
2748 # configuration, so that the top-level Makefile reconfigures them,
2749 # like we used to do when configure itself was recursive.
2751 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2752 # but now we're fixing up the Makefile ourselves with the additional
2753 # commands passed to AC_CONFIG_FILES. Use separate variables
2754 # extrasub-{build,host,target} not because there is any reason to split
2755 # the substitutions up that way, but only to remain below the limit of
2756 # 99 commands in a script, for HP-UX sed.
2758 # Do not nest @if/@endif or @unless/@endunless pairs, because
2759 # configure will not warn you at all.
2761 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2762 yes:yes:*\ gold\ *:*,c++,*) ;;
2763 yes:yes:*\ gold\ *:*)
2764 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2765 ;;
2766 esac
2768 extrasub_build=
2769 for module in ${build_configdirs} ; do
2770 if test -z "${no_recursion}" \
2771 && test -f ${build_subdir}/${module}/Makefile; then
2772 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2773 rm -f ${build_subdir}/${module}/Makefile
2774 fi
2775 extrasub_build="$extrasub_build
2776 /^@if build-$module\$/d
2777 /^@endif build-$module\$/d
2778 /^@unless build-$module\$/,/^@endunless build-$module\$/d
2779 /^@if build-$module-$bootstrap_suffix\$/d
2780 /^@endif build-$module-$bootstrap_suffix\$/d
2781 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
2782 done
2783 extrasub_host=
2784 for module in ${configdirs} ; do
2785 if test -z "${no_recursion}"; then
2786 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2787 if test -f ${file}; then
2788 echo 1>&2 "*** removing ${file} to force reconfigure"
2789 rm -f ${file}
2790 fi
2791 done
2792 fi
2793 case ${module},${bootstrap_fixincludes} in
2794 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2795 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2796 esac
2797 extrasub_host="$extrasub_host
2798 /^@if $module\$/d
2799 /^@endif $module\$/d
2800 /^@unless $module\$/,/^@endunless $module\$/d
2801 /^@if $module-$host_bootstrap_suffix\$/d
2802 /^@endif $module-$host_bootstrap_suffix\$/d
2803 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
2804 done
2805 extrasub_target=
2806 for module in ${target_configdirs} ; do
2807 if test -z "${no_recursion}" \
2808 && test -f ${target_subdir}/${module}/Makefile; then
2809 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2810 rm -f ${target_subdir}/${module}/Makefile
2811 fi
2813 # We only bootstrap target libraries listed in bootstrap_target_libs.
2814 case $bootstrap_target_libs in
2815 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2816 *) target_bootstrap_suffix=no-bootstrap ;;
2817 esac
2819 extrasub_target="$extrasub_target
2820 /^@if target-$module\$/d
2821 /^@endif target-$module\$/d
2822 /^@unless target-$module\$/,/^@endunless target-$module\$/d
2823 /^@if target-$module-$target_bootstrap_suffix\$/d
2824 /^@endif target-$module-$target_bootstrap_suffix\$/d
2825 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
2826 done
2828 # Do the final fixup along with target modules.
2829 extrasub_target="$extrasub_target
2830 /^@if /,/^@endif /d
2831 /^@unless /d
2832 /^@endunless /d"
2834 # Create the serialization dependencies. This uses a temporary file.
2836 AC_ARG_ENABLE([serial-configure],
2837 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2838 [force sequential configuration of
2839 sub-packages for the host, target or build
2840 machine, or all sub-packages])])
2842 case ${enable_serial_configure} in
2843 yes)
2844 enable_serial_build_configure=yes
2845 enable_serial_host_configure=yes
2846 enable_serial_target_configure=yes
2847 ;;
2848 esac
2850 # These force 'configure's to be done one at a time, to avoid problems
2851 # with contention over a shared config.cache.
2852 rm -f serdep.tmp
2853 echo '# serdep.tmp' > serdep.tmp
2854 olditem=
2855 test "x${enable_serial_build_configure}" = xyes &&
2856 for item in ${build_configdirs} ; do
2857 case ${olditem} in
2858 "") ;;
2859 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2860 esac
2861 olditem=${item}
2862 done
2863 olditem=
2864 test "x${enable_serial_host_configure}" = xyes &&
2865 for item in ${configdirs} ; do
2866 case ${olditem} in
2867 "") ;;
2868 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2869 esac
2870 olditem=${item}
2871 done
2872 olditem=
2873 test "x${enable_serial_target_configure}" = xyes &&
2874 for item in ${target_configdirs} ; do
2875 case ${olditem} in
2876 "") ;;
2877 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2878 esac
2879 olditem=${item}
2880 done
2881 serialization_dependencies=serdep.tmp
2882 AC_SUBST_FILE(serialization_dependencies)
2884 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2885 # target, nonopt, and variable assignments. These are the ones we
2886 # might not want to pass down to subconfigures. The exception being
2887 # --cache-file=/dev/null, which is used to turn off the use of cache
2888 # files altogether, and which should be passed on to subconfigures.
2889 # Also strip program-prefix, program-suffix, and program-transform-name,
2890 # so that we can pass down a consistent program-transform-name.
2891 baseargs=
2892 tbaseargs=
2893 keep_next=no
2894 skip_next=no
2895 eval "set -- $ac_configure_args"
2896 for ac_arg
2897 do
2898 if test X"$skip_next" = X"yes"; then
2899 skip_next=no
2900 continue
2901 fi
2902 if test X"$keep_next" = X"yes"; then
2903 case $ac_arg in
2904 *\'*)
2905 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2906 esac
2907 baseargs="$baseargs '$ac_arg'"
2908 tbaseargs="$tbaseargs '$ac_arg'"
2909 keep_next=no
2910 continue
2911 fi
2913 # Handle separated arguments. Based on the logic generated by
2914 # autoconf 2.59.
2915 case $ac_arg in
2916 *=* | --config-cache | -C | -disable-* | --disable-* \
2917 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2918 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2919 | -with-* | --with-* | -without-* | --without-* | --x)
2920 separate_arg=no
2921 ;;
2922 -*)
2923 separate_arg=yes
2924 ;;
2925 *)
2926 separate_arg=no
2927 ;;
2928 esac
2930 skip_targ=no
2931 case $ac_arg in
2932 changequote(,)
2933 --with-* | --without-*)
2934 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2936 case $libopt in
2937 *[-_]include)
2938 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2939 ;;
2940 *[-_]lib)
2941 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2942 ;;
2943 *)
2944 lib=$libopt
2945 ;;
2946 esac
2947 changequote([,])
2949 case $lib in
2950 mpc | mpfr | gmp | isl)
2951 # If we're processing --with-$lib, --with-$lib-include or
2952 # --with-$lib-lib, for one of the libs above, and target is
2953 # different from host, don't pass the current argument to any
2954 # target library's configure.
2955 if test x$is_cross_compiler = xyes; then
2956 skip_targ=yes
2957 fi
2958 ;;
2959 esac
2960 ;;
2961 esac
2963 case "$ac_arg" in
2964 --cache-file=/dev/null | \
2965 -cache-file=/dev/null )
2966 # Handled here to avoid the test to skip args below.
2967 baseargs="$baseargs '$ac_arg'"
2968 tbaseargs="$tbaseargs '$ac_arg'"
2969 # Assert: $separate_arg should always be no.
2970 keep_next=$separate_arg
2971 ;;
2972 --no*)
2973 continue
2974 ;;
2975 --c* | \
2976 --sr* | \
2977 --ho* | \
2978 --bu* | \
2979 --t* | \
2980 --program-* | \
2981 -cache_file* | \
2982 -srcdir* | \
2983 -host* | \
2984 -build* | \
2985 -target* | \
2986 -program-prefix* | \
2987 -program-suffix* | \
2988 -program-transform-name* )
2989 skip_next=$separate_arg
2990 continue
2991 ;;
2992 -*)
2993 # An option. Add it.
2994 case $ac_arg in
2995 *\'*)
2996 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2997 esac
2998 baseargs="$baseargs '$ac_arg'"
2999 if test X"$skip_targ" = Xno; then
3000 tbaseargs="$tbaseargs '$ac_arg'"
3001 fi
3002 keep_next=$separate_arg
3003 ;;
3004 *)
3005 # Either a variable assignment, or a nonopt (triplet). Don't
3006 # pass it down; let the Makefile handle this.
3007 continue
3008 ;;
3009 esac
3010 done
3011 # Remove the initial space we just introduced and, as these will be
3012 # expanded by make, quote '$'.
3013 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3015 # Add in --program-transform-name, after --program-prefix and
3016 # --program-suffix have been applied to it. Autoconf has already
3017 # doubled dollar signs and backslashes in program_transform_name; we want
3018 # the backslashes un-doubled, and then the entire thing wrapped in single
3019 # quotes, because this will be expanded first by make and then by the shell.
3020 # Also, because we want to override the logic in subdir configure scripts to
3021 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3022 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3023 ${program_transform_name}
3024 EOF_SED
3025 gcc_transform_name=`cat conftestsed.out`
3026 rm -f conftestsed.out
3027 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3028 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3029 if test "$silent" = yes; then
3030 baseargs="$baseargs --silent"
3031 tbaseargs="$tbaseargs --silent"
3032 fi
3033 baseargs="$baseargs --disable-option-checking"
3034 tbaseargs="$tbaseargs --disable-option-checking"
3036 # Record and document user additions to sub configure arguments.
3037 AC_ARG_VAR([build_configargs],
3038 [additional configure arguments for build directories])
3039 AC_ARG_VAR([host_configargs],
3040 [additional configure arguments for host directories])
3041 AC_ARG_VAR([target_configargs],
3042 [additional configure arguments for target directories])
3044 # For the build-side libraries, we just need to pretend we're native,
3045 # and not use the same cache file. Multilibs are neither needed nor
3046 # desired. We can't even use the same cache file for all build-side
3047 # libraries, as they're compiled differently; some with C, some with
3048 # C++ or with different feature-enabling options.
3049 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3051 # For host modules, accept cache file option, or specification as blank.
3052 case "${cache_file}" in
3053 "") # empty
3054 cache_file_option="" ;;
3055 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3056 cache_file_option="--cache-file=${cache_file}" ;;
3057 *) # relative path
3058 cache_file_option="--cache-file=../${cache_file}" ;;
3059 esac
3061 # Host dirs don't like to share a cache file either, horribly enough.
3062 # This seems to be due to autoconf 2.5x stupidity.
3063 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3065 target_configargs="$target_configargs ${tbaseargs}"
3067 # Passing a --with-cross-host argument lets the target libraries know
3068 # whether they are being built with a cross-compiler or being built
3069 # native. However, it would be better to use other mechanisms to make the
3070 # sorts of decisions they want to make on this basis. Please consider
3071 # this option to be deprecated. FIXME.
3072 if test x${is_cross_compiler} = xyes ; then
3073 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3074 fi
3076 # Special user-friendly check for native x86_64-linux build, if
3077 # multilib is not explicitly enabled.
3078 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3079 x86_64-*linux*:yes:$build:$build:)
3080 # Make sure we have a development environment that handles 32-bit
3081 dev64=no
3082 echo "int main () { return 0; }" > conftest.c
3083 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3084 if test $? = 0 ; then
3085 if test -s conftest || test -s conftest.exe ; then
3086 dev64=yes
3087 fi
3088 fi
3089 rm -f conftest*
3090 if test x${dev64} != xyes ; then
3091 AC_MSG_ERROR([I suspect your system does not have 32-bit development libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib.])
3092 fi
3093 ;;
3094 esac
3096 # Default to --enable-multilib.
3097 if test x${enable_multilib} = x ; then
3098 target_configargs="--enable-multilib ${target_configargs}"
3099 fi
3101 # Pass --with-newlib if appropriate. Note that target_configdirs has
3102 # changed from the earlier setting of with_newlib.
3103 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3104 target_configargs="--with-newlib ${target_configargs}"
3105 fi
3107 # Different target subdirs use different values of certain variables
3108 # (notably CXX). Worse, multilibs use *lots* of different values.
3109 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3110 # it doesn't automatically accept command-line overrides of them.
3111 # This means it's not safe for target subdirs to share a cache file,
3112 # which is disgusting, but there you have it. Hopefully this can be
3113 # fixed in future. It's still worthwhile to use a cache file for each
3114 # directory. I think.
3116 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3117 # We need to pass --target, as newer autoconf's requires consistency
3118 # for target_alias and gcc doesn't manage it consistently.
3119 target_configargs="--cache-file=./config.cache ${target_configargs}"
3121 FLAGS_FOR_TARGET=
3122 case " $target_configdirs " in
3123 *" newlib "*)
3124 case " $target_configargs " in
3125 *" --with-newlib "*)
3126 case "$target" in
3127 *-cygwin*)
3128 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3129 ;;
3130 esac
3132 # If we're not building GCC, don't discard standard headers.
3133 if test -d ${srcdir}/gcc; then
3134 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3136 if test "${build}" != "${host}"; then
3137 # On Canadian crosses, CC_FOR_TARGET will have already been set
3138 # by `configure', so we won't have an opportunity to add -Bgcc/
3139 # to it. This is right: we don't want to search that directory
3140 # for binaries, but we want the header files in there, so add
3141 # them explicitly.
3142 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3144 # Someone might think of using the pre-installed headers on
3145 # Canadian crosses, in case the installed compiler is not fully
3146 # compatible with the compiler being built. In this case, it
3147 # would be better to flag an error than risking having
3148 # incompatible object files being constructed. We can't
3149 # guarantee that an error will be flagged, but let's hope the
3150 # compiler will do it, when presented with incompatible header
3151 # files.
3152 fi
3153 fi
3155 case "${target}-${is_cross_compiler}" in
3156 i[[3456789]]86-*-linux*-no)
3157 # Here host == target, so we don't need to build gcc,
3158 # so we don't want to discard standard headers.
3159 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3160 ;;
3161 *)
3162 # If we're building newlib, use its generic headers last, but search
3163 # for any libc-related directories first (so make it the last -B
3164 # switch).
3165 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3167 # If we're building libgloss, find the startup file, simulator library
3168 # and linker script.
3169 case " $target_configdirs " in
3170 *" libgloss "*)
3171 # Look for startup file, simulator library and maybe linker script.
3172 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3173 # Look for libnosys.a in case the target needs it.
3174 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3175 # Most targets have the linker script in the source directory.
3176 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3177 ;;
3178 esac
3179 ;;
3180 esac
3181 ;;
3182 esac
3183 ;;
3184 esac
3186 case "$target" in
3187 x86_64-*mingw* | *-w64-mingw*)
3188 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3189 # however, use a symlink named 'mingw' in ${prefix} .
3190 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3191 ;;
3192 *-mingw*)
3193 # MinGW can't be handled as Cygwin above since it does not use newlib.
3194 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3195 ;;
3196 esac
3198 # Allow the user to override the flags for
3199 # our build compiler if desired.
3200 if test x"${build}" = x"${host}" ; then
3201 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3202 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3203 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3204 fi
3206 # On Canadian crosses, we'll be searching the right directories for
3207 # the previously-installed cross compiler, so don't bother to add
3208 # flags for directories within the install tree of the compiler
3209 # being built; programs in there won't even run.
3210 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3211 # Search for pre-installed headers if nothing else fits.
3212 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3213 fi
3215 if test "x${use_gnu_ld}" = x &&
3216 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3217 # Arrange for us to find uninstalled linker scripts.
3218 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3219 fi
3221 # Search for other target-specific linker scripts and such.
3222 case "${target}" in
3223 mep*)
3224 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3225 ;;
3226 esac
3228 # Makefile fragments.
3229 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3230 do
3231 eval fragval=\$$frag
3232 if test $fragval != /dev/null; then
3233 eval $frag=${srcdir}/$fragval
3234 fi
3235 done
3236 AC_SUBST_FILE(host_makefile_frag)
3237 AC_SUBST_FILE(target_makefile_frag)
3238 AC_SUBST_FILE(alphaieee_frag)
3239 AC_SUBST_FILE(ospace_frag)
3241 # Miscellanea: directories, flags, etc.
3242 AC_SUBST(RPATH_ENVVAR)
3243 AC_SUBST(GCC_SHLIB_SUBDIR)
3244 AC_SUBST(tooldir)
3245 AC_SUBST(build_tooldir)
3246 AC_SUBST(CONFIGURE_GDB_TK)
3247 AC_SUBST(GDB_TK)
3248 AC_SUBST(INSTALL_GDB_TK)
3250 # Build module lists & subconfigure args.
3251 AC_SUBST(build_configargs)
3252 AC_SUBST(build_configdirs)
3254 # Host module lists & subconfigure args.
3255 AC_SUBST(host_configargs)
3256 AC_SUBST(configdirs)
3257 AC_SUBST(target_configdirs)
3259 # Target module lists & subconfigure args.
3260 AC_SUBST(target_configargs)
3263 # Build tools.
3264 AC_SUBST(AR_FOR_BUILD)
3265 AC_SUBST(AS_FOR_BUILD)
3266 AC_SUBST(CC_FOR_BUILD)
3267 AC_SUBST(CFLAGS_FOR_BUILD)
3268 AC_SUBST(CXXFLAGS_FOR_BUILD)
3269 AC_SUBST(CXX_FOR_BUILD)
3270 AC_SUBST(DLLTOOL_FOR_BUILD)
3271 AC_SUBST(GFORTRAN_FOR_BUILD)
3272 AC_SUBST(GOC_FOR_BUILD)
3273 AC_SUBST(GDC_FOR_BUILD)
3274 AC_SUBST(LDFLAGS_FOR_BUILD)
3275 AC_SUBST(LD_FOR_BUILD)
3276 AC_SUBST(NM_FOR_BUILD)
3277 AC_SUBST(RANLIB_FOR_BUILD)
3278 AC_SUBST(WINDMC_FOR_BUILD)
3279 AC_SUBST(WINDRES_FOR_BUILD)
3281 # Generate default definitions for YACC, M4, LEX and other programs that run
3282 # on the build machine. These are used if the Makefile can't locate these
3283 # programs in objdir.
3284 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3286 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3287 case " $build_configdirs " in
3288 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3289 esac
3291 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3292 case " $build_configdirs " in
3293 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3294 esac
3296 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3297 case " $build_configdirs " in
3298 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3299 esac
3301 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3302 case " $build_configdirs " in
3303 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3304 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3305 esac
3307 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3308 case " $build_configdirs " in
3309 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3310 esac
3312 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3313 case " $build_configdirs " in
3314 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3315 *)
3316 changequote(,)
3317 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3318 # higher, else we use the "missing" dummy.
3319 if ${MAKEINFO} --version \
3320 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3321 :
3322 else
3323 MAKEINFO="$MISSING makeinfo"
3324 fi
3325 ;;
3326 changequote([,])
3327 esac
3329 # FIXME: expect and dejagnu may become build tools?
3331 AC_CHECK_PROGS(EXPECT, expect, expect)
3332 case " $configdirs " in
3333 *" expect "*)
3334 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3335 ;;
3336 esac
3338 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3339 case " $configdirs " in
3340 *" dejagnu "*)
3341 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3342 ;;
3343 esac
3346 # Host tools.
3347 NCN_STRICT_CHECK_TOOLS(AR, ar)
3348 NCN_STRICT_CHECK_TOOLS(AS, as)
3349 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3350 NCN_STRICT_CHECK_TOOLS(LD, ld)
3351 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3352 NCN_STRICT_CHECK_TOOLS(NM, nm)
3353 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3354 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3355 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3356 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3357 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3358 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3359 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3360 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3361 AC_SUBST(CC)
3362 AC_SUBST(CXX)
3363 AC_SUBST(CFLAGS)
3364 AC_SUBST(CXXFLAGS)
3366 # Target tools.
3367 AC_ARG_WITH([build-time-tools],
3368 [AS_HELP_STRING([--with-build-time-tools=PATH],
3369 [use given path to find target tools during the build])],
3370 [case x"$withval" in
3371 x/*) ;;
3372 *)
3373 with_build_time_tools=
3374 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3375 ;;
3376 esac],
3377 [with_build_time_tools=])
3379 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3380 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3381 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3382 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3383 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3384 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3386 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3387 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3388 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3389 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3390 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3391 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3392 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3393 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3394 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3395 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3396 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3397 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3398 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3399 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3401 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3403 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3404 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3405 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3406 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3407 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3408 [gcc/xg++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3409 c++)
3410 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3411 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3412 c++)
3413 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3414 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3415 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3416 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3417 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3418 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3419 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3420 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3421 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3422 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3423 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3424 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3425 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3426 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3427 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3428 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3429 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3430 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3431 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3433 AC_SUBST(FLAGS_FOR_TARGET)
3434 AC_SUBST(RAW_CXX_FOR_TARGET)
3436 # Certain tools may need extra flags.
3437 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3438 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3439 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3441 # When building target libraries, except in a Canadian cross, we use
3442 # the same toolchain as the compiler we just built.
3443 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3444 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3445 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3446 if test $host = $build; then
3447 case " $configdirs " in
3448 *" gcc "*)
3449 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3450 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3451 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3452 ;;
3453 esac
3454 fi
3456 AC_SUBST(COMPILER_AS_FOR_TARGET)
3457 AC_SUBST(COMPILER_LD_FOR_TARGET)
3458 AC_SUBST(COMPILER_NM_FOR_TARGET)
3460 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3461 AC_ARG_ENABLE(maintainer-mode,
3462 [AS_HELP_STRING([--enable-maintainer-mode],
3463 [enable make rules and dependencies not useful
3464 (and sometimes confusing) to the casual installer])],
3465 USE_MAINTAINER_MODE=$enableval,
3466 USE_MAINTAINER_MODE=no)
3467 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3468 AC_SUBST(MAINTAINER_MODE_TRUE)
3469 AC_SUBST(MAINTAINER_MODE_FALSE)
3470 if test "$USE_MAINTAINER_MODE" = yes; then
3471 MAINTAINER_MODE_TRUE=
3472 MAINTAINER_MODE_FALSE='#'
3473 else
3474 MAINTAINER_MODE_TRUE='#'
3475 MAINTAINER_MODE_FALSE=
3476 fi
3477 MAINT=$MAINTAINER_MODE_TRUE
3478 AC_SUBST(MAINT)dnl
3480 # ---------------------
3481 # GCC bootstrap support
3482 # ---------------------
3484 # Stage specific cflags for build.
3485 stage1_cflags="-g"
3486 case $build in
3487 vax-*-*)
3488 case ${GCC} in
3489 yes) stage1_cflags="-g -Wa,-J" ;;
3490 *) stage1_cflags="-g -J" ;;
3491 esac ;;
3492 esac
3494 AC_SUBST(stage1_cflags)
3496 # Enable --enable-checking in stage1 of the compiler.
3497 AC_ARG_ENABLE(stage1-checking,
3498 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3499 [choose additional checking for stage1 of the compiler])],
3500 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3501 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3502 # For --disable-checking or implicit --enable-checking=release, avoid
3503 # setting --enable-checking=gc in the default stage1 checking for LTO
3504 # bootstraps. See PR62077.
3505 case $BUILD_CONFIG in
3506 *lto*)
3507 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3508 *)
3509 stage1_checking=--enable-checking=yes,types;;
3510 esac
3511 if test "x$enable_checking" = x && \
3512 test -d ${srcdir}/gcc && \
3513 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3514 stage1_checking=--enable-checking=yes,types,extra
3515 fi
3516 else
3517 stage1_checking=--enable-checking=$enable_checking,types
3518 fi])
3519 AC_SUBST(stage1_checking)
3521 # Enable -Werror in bootstrap stage2 and later.
3522 AC_ARG_ENABLE(werror,
3523 [AS_HELP_STRING([--enable-werror],
3524 [enable -Werror in bootstrap stage2 and later])],
3525 [
3526 case ${enable_werror} in
3527 yes) stage2_werror_flag="--enable-werror-always" ;;
3528 *) stage2_werror_flag="" ;;
3529 esac
3530 ],
3531 [
3532 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3533 case $BUILD_CONFIG in
3534 bootstrap-debug)
3535 stage2_werror_flag="--enable-werror-always" ;;
3536 "")
3537 stage2_werror_flag="--enable-werror-always" ;;
3538 esac
3539 fi
3540 ])
3542 AC_SUBST(stage2_werror_flag)
3544 # Specify what files to not compare during bootstrap.
3546 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3547 case "$target" in
3548 hppa*64*-*-hpux*) ;;
3549 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
3550 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3551 esac
3552 AC_SUBST(compare_exclusions)
3554 AC_CONFIG_FILES([Makefile],
3555 [sed "$extrasub_build" Makefile |
3556 sed "$extrasub_host" |
3557 sed "$extrasub_target" > mf$$
3558 mv -f mf$$ Makefile],
3559 [extrasub_build="$extrasub_build"
3560 extrasub_host="$extrasub_host"
3561 extrasub_target="$extrasub_target"])
3562 AC_OUTPUT