| blob | c3433336523c58cc403af3dd9895ffb7a77da974 |
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_PREREQ(2.64)
35 AC_DISABLE_OPTION_CHECKING
37 progname=$0
38 # if PWD already has a value, it is probably wrong.
39 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
41 # Export original configure arguments for use by sub-configures.
42 # Quote arguments with shell meta charatcers.
43 TOPLEVEL_CONFIGURE_ARGUMENTS=
44 set -- "$progname" "$@"
45 for ac_arg
46 do
47 case "$ac_arg" in
48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
50 # if the argument is of the form -foo=baz, quote the baz part only
51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
52 *) ;;
53 esac
54 # Add the quoted argument to the list.
55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
56 done
57 if test "$silent" = yes; then
58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
59 fi
60 # Remove the initial space we just introduced and, as these will be
61 # expanded by make, quote '$'.
62 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
63 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
65 # Find the build, host, and target systems.
66 ACX_NONCANONICAL_BUILD
67 ACX_NONCANONICAL_HOST
68 ACX_NONCANONICAL_TARGET
70 dnl Autoconf 2.5x and later will set a default program prefix if
71 dnl --target was used, even if it was the same as --host. Disable
72 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
73 dnl to take effect.
74 test "$host_noncanonical" = "$target_noncanonical" &&
75 test "$program_prefix$program_suffix$program_transform_name" = \
76 NONENONEs,x,x, &&
77 program_transform_name=s,y,y,
79 AC_CANONICAL_SYSTEM
80 AC_ARG_PROGRAM
82 m4_pattern_allow([^AS_FOR_TARGET$])dnl
83 m4_pattern_allow([^AS_FOR_BUILD$])dnl
85 # Get 'install' or 'install-sh' and its variants.
86 AC_PROG_INSTALL
87 ACX_PROG_LN
88 AC_PROG_LN_S
89 AC_PROG_SED
90 AC_PROG_AWK
92 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
94 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
95 # a relative path.
96 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
97 INSTALL="${srcpwd}/install-sh -c"
98 fi
100 # Set srcdir to "." if that's what it is.
101 # This is important for multilib support.
102 pwd=`${PWDCMD-pwd}`
103 if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105 fi
107 topsrcdir=$srcpwd
109 extra_host_args=
111 ### To add a new directory to the tree, first choose whether it is a target
112 ### or a host dependent tool. Then put it into the appropriate list
113 ### (library or tools, host or target), doing a dependency sort.
115 # Subdirs will be configured in the order listed in build_configdirs,
116 # configdirs, or target_configdirs; see the serialization section below.
118 # Dependency sorting is only needed when *configuration* must be done in
119 # a particular order. In all cases a dependency should be specified in
120 # the Makefile, whether or not it's implicitly specified here.
122 # Double entries in build_configdirs, configdirs, or target_configdirs may
123 # cause circular dependencies and break everything horribly.
125 # these library is used by various programs built for the build
126 # environment
127 #
128 build_libs="build-libiberty build-libcpp"
130 # these tools are built for the build environment
131 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
133 # these libraries are used by various programs built for the host environment
134 #f
135 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv"
137 # these tools are built for the host environment
138 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
139 # know that we are building the simulator.
140 # binutils, gas and ld appear in that order because it makes sense to run
141 # "make check" in that particular order.
142 # If --enable-gold is used, "gold" may replace "ld".
143 host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools"
145 # these libraries are built for the target environment, and are built after
146 # the host libraries and the host tools (which may be a cross compiler)
147 # Note that libiberty is not a target library.
148 target_libraries="target-libgcc \
149 target-libbacktrace \
150 target-libgloss \
151 target-newlib \
152 target-libgomp \
153 target-liboffloadmic \
154 target-libhsail-rt \
155 target-libatomic \
156 target-libitm \
157 target-libstdc++-v3 \
158 target-libsanitizer \
159 target-libvtv \
160 target-libmpx \
161 target-libssp \
162 target-libquadmath \
163 target-libgfortran \
164 target-libffi \
165 target-libobjc \
166 target-libada \
167 target-libgo"
169 # these tools are built using the target libraries, and are intended to
170 # run only in the target environment
171 #
172 # note: any program that *uses* libraries that are in the "target_libraries"
173 # list belongs in this list.
174 #
175 target_tools="target-rda"
177 ################################################################################
179 ## All tools belong in one of the four categories, and are assigned above
180 ## We assign ${configdirs} this way to remove all embedded newlines. This
181 ## is important because configure will choke if they ever get through.
182 ## ${configdirs} is directories we build using the host tools.
183 ## ${target_configdirs} is directories we build using the target tools.
184 configdirs=`echo ${host_libs} ${host_tools}`
185 target_configdirs=`echo ${target_libraries} ${target_tools}`
186 build_configdirs=`echo ${build_libs} ${build_tools}`
188 m4_divert_text([PARSE_ARGS],
189 [case $srcdir in
190 *" "*)
191 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
192 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
193 m4_popdef([AS_MESSAGE_LOG_FD])dnl
194 ;;
195 esac
196 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
197 ])
199 ################################################################################
201 srcname="gnu development package"
203 # This gets set non-empty for some net releases of packages.
204 appdirs=""
206 # Define is_cross_compiler to save on calls to 'test'.
207 is_cross_compiler=
208 if test x"${host}" = x"${target}" ; then
209 is_cross_compiler=no
210 else
211 is_cross_compiler=yes
212 fi
214 # Find the build and target subdir names.
215 GCC_TOPLEV_SUBDIRS
216 # Be sure to cover against remnants of an in-tree build.
217 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
218 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
219 Use a pristine source tree when building in a separate tree])
220 fi
222 # Skipdirs are removed silently.
223 skipdirs=
224 # Noconfigdirs are removed loudly.
225 noconfigdirs=""
227 use_gnu_ld=
228 # Make sure we don't let GNU ld be added if we didn't want it.
229 if test x$with_gnu_ld = xno ; then
230 use_gnu_ld=no
231 noconfigdirs="$noconfigdirs ld gold"
232 fi
234 use_gnu_as=
235 # Make sure we don't let GNU as be added if we didn't want it.
236 if test x$with_gnu_as = xno ; then
237 use_gnu_as=no
238 noconfigdirs="$noconfigdirs gas"
239 fi
241 use_included_zlib=
242 AC_ARG_WITH(system-zlib,
243 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
244 # Make sure we don't let ZLIB be added if we didn't want it.
245 if test x$with_system_zlib = xyes ; then
246 use_included_zlib=no
247 noconfigdirs="$noconfigdirs zlib"
248 fi
250 # some tools are so dependent upon X11 that if we're not building with X,
251 # it's not even worth trying to configure, much less build, that tool.
253 case ${with_x} in
254 yes | "") ;; # the default value for this tree is that X11 is available
255 no)
256 skipdirs="${skipdirs} tk itcl libgui"
257 # We won't be able to build gdbtk without X.
258 enable_gdbtk=no
259 ;;
260 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
261 esac
263 # Some are only suitable for cross toolchains.
264 # Remove these if host=target.
265 cross_only="target-libgloss target-newlib target-opcodes"
267 case $is_cross_compiler in
268 no) skipdirs="${skipdirs} ${cross_only}" ;;
269 esac
271 # If both --with-headers and --with-libs are specified, default to
272 # --without-newlib.
273 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
274 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
275 if test x"${with_newlib}" = x ; then
276 with_newlib=no
277 fi
278 fi
280 # Recognize --with-newlib/--without-newlib.
281 case ${with_newlib} in
282 no) skipdirs="${skipdirs} target-newlib" ;;
283 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
284 esac
286 AC_ARG_ENABLE(as-accelerator-for,
287 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
288 [build as offload target compiler.
289 Specify offload host triple by ARG])])
291 AC_ARG_ENABLE(offload-targets,
292 [AS_HELP_STRING([--enable-offload-targets=LIST],
293 [enable offloading to devices from comma-separated LIST of
294 TARGET[=DIR]. Use optional path to find offload target compiler
295 during the build])],
296 [
297 if test x"$enable_offload_targets" = x; then
298 AC_MSG_ERROR([no offload targets specified])
299 fi
300 ], [enable_offload_targets=])
302 # Handle --enable-gold, --enable-ld.
303 # --disable-gold [--enable-ld]
304 # Build only ld. Default option.
305 # --enable-gold [--enable-ld]
306 # Build both gold and ld. Install gold as "ld.gold", install ld
307 # as "ld.bfd" and "ld".
308 # --enable-gold=default [--enable-ld]
309 # Build both gold and ld. Install gold as "ld.gold" and "ld",
310 # install ld as "ld.bfd".
311 # --enable-gold[=default] --disable-ld
312 # Build only gold, which is then installed as both "ld.gold" and "ld".
313 # --enable-gold --enable-ld=default
314 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
315 # and ld.bfd).
316 # In other words, ld is default
317 # --enable-gold=default --enable-ld=default
318 # Error.
320 default_ld=
321 AC_ARG_ENABLE(gold,
322 [AS_HELP_STRING([[--enable-gold[=ARG]]],
323 [build gold @<:@ARG={default,yes,no}@:>@])],
324 ENABLE_GOLD=$enableval,
325 ENABLE_GOLD=no)
326 case "${ENABLE_GOLD}" in
327 yes|default)
328 # Check for ELF target.
329 is_elf=no
330 case "${target}" in
331 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
332 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
333 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
334 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
335 case "${target}" in
336 *-*-linux*aout* | *-*-linux*oldld*)
337 ;;
338 *)
339 is_elf=yes
340 ;;
341 esac
342 esac
344 if test "$is_elf" = "yes"; then
345 # Check for target supported by gold.
346 case "${target}" in
347 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
348 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
349 configdirs="$configdirs gold"
350 if test x${ENABLE_GOLD} = xdefault; then
351 default_ld=gold
352 fi
353 ENABLE_GOLD=yes
354 ;;
355 esac
356 fi
357 ;;
358 no)
359 ;;
360 *)
361 AC_MSG_ERROR([invalid --enable-gold argument])
362 ;;
363 esac
365 AC_ARG_ENABLE(ld,
366 [AS_HELP_STRING([[--enable-ld[=ARG]]],
367 [build ld @<:@ARG={default,yes,no}@:>@])],
368 ENABLE_LD=$enableval,
369 ENABLE_LD=yes)
371 case "${ENABLE_LD}" in
372 default)
373 if test x${default_ld} != x; then
374 AC_MSG_ERROR([either gold or ld can be the default ld])
375 fi
376 ;;
377 yes)
378 ;;
379 no)
380 if test x${ENABLE_GOLD} != xyes; then
381 AC_MSG_WARN([neither ld nor gold are enabled])
382 fi
383 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
384 ;;
385 *)
386 AC_MSG_ERROR([invalid --enable-ld argument])
387 ;;
388 esac
390 # PR gas/19109
391 # Decide the default method for compressing debug sections.
392 # Provide a configure time option to override our default.
393 AC_ARG_ENABLE(compressed_debug_sections,
394 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
395 [Enable compressed debug sections for gas, gold or ld by
396 default])],
397 [
398 if test x"$enable_compressed_debug_sections" = xyes; then
399 AC_MSG_ERROR([no program with compressed debug sections specified])
400 fi
401 ], [enable_compressed_debug_sections=])
403 # Configure extra directories which are host specific
405 case "${host}" in
406 *-cygwin*)
407 configdirs="$configdirs libtermcap" ;;
408 esac
410 # A target can indicate whether a language isn't supported for some reason.
411 # Only spaces may be used in this macro; not newlines or tabs.
412 unsupported_languages=
414 # Remove more programs from consideration, based on the host or
415 # target this usually means that a port of the program doesn't
416 # exist yet.
418 case "${host}" in
419 i[[3456789]]86-*-msdosdjgpp*)
420 noconfigdirs="$noconfigdirs tcl tk itcl"
421 ;;
422 esac
425 AC_ARG_ENABLE(libquadmath,
426 AS_HELP_STRING([--disable-libquadmath],
427 [do not build libquadmath directory]),
428 ENABLE_LIBQUADMATH=$enableval,
429 ENABLE_LIBQUADMATH=yes)
430 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
431 noconfigdirs="$noconfigdirs target-libquadmath"
432 fi
435 AC_ARG_ENABLE(libquadmath-support,
436 AS_HELP_STRING([--disable-libquadmath-support],
437 [disable libquadmath support for Fortran]),
438 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
439 ENABLE_LIBQUADMATH_SUPPORT=yes)
440 enable_libquadmath_support=
441 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
442 enable_libquadmath_support=no
443 fi
446 AC_ARG_ENABLE(libada,
447 [AS_HELP_STRING([--enable-libada], [build libada directory])],
448 ENABLE_LIBADA=$enableval,
449 ENABLE_LIBADA=yes)
450 if test "${ENABLE_LIBADA}" != "yes" ; then
451 noconfigdirs="$noconfigdirs gnattools"
452 fi
454 AC_ARG_ENABLE(libssp,
455 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
456 ENABLE_LIBSSP=$enableval,
457 ENABLE_LIBSSP=yes)
459 AC_ARG_ENABLE(libstdcxx,
460 AS_HELP_STRING([--disable-libstdcxx],
461 [do not build libstdc++-v3 directory]),
462 ENABLE_LIBSTDCXX=$enableval,
463 ENABLE_LIBSTDCXX=default)
464 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
465 noconfigdirs="$noconfigdirs target-libstdc++-v3"
466 fi]
468 # If this is accelerator compiler and its target is intelmic we enable
469 # target liboffloadmic by default. If this is compiler with offloading
470 # for intelmic we enable host liboffloadmic by default. Otherwise
471 # liboffloadmic is disabled by default.
472 AC_ARG_ENABLE([liboffloadmic],
473 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
474 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
475 [case "$enableval" in
476 no | host | target)
477 enable_liboffloadmic=$enableval ;;
478 *)
479 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
480 esac],
481 [if test x"$enable_as_accelerator_for" != x; then
482 case "${target}" in
483 *-intelmic-* | *-intelmicemul-*)
484 enable_liboffloadmic=target
485 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
486 ;;
487 *)
488 enable_liboffloadmic=no
489 ;;
490 esac
491 else
492 case "${enable_offload_targets}" in
493 *-intelmic-* | *-intelmicemul-*)
494 enable_liboffloadmic=host
495 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
496 ;;
497 *)
498 enable_liboffloadmic=no
499 ;;
500 esac
501 fi])
502 AC_SUBST(extra_liboffloadmic_configure_flags)
504 # Enable libgomp by default on hosted POSIX systems, and a few others.
505 if test x$enable_libgomp = x ; then
506 case "${target}" in
507 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
508 ;;
509 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
510 ;;
511 *-*-solaris2* | *-*-hpux11*)
512 ;;
513 *-*-darwin* | *-*-aix*)
514 ;;
515 nvptx*-*-*)
516 ;;
517 *)
518 noconfigdirs="$noconfigdirs target-libgomp"
519 ;;
520 esac
521 fi
523 # Disable libatomic on unsupported systems.
524 if test -d ${srcdir}/libatomic; then
525 if test x$enable_libatomic = x; then
526 AC_MSG_CHECKING([for libatomic support])
527 if (srcdir=${srcdir}/libatomic; \
528 . ${srcdir}/configure.tgt; \
529 test -n "$UNSUPPORTED")
530 then
531 AC_MSG_RESULT([no])
532 noconfigdirs="$noconfigdirs target-libatomic"
533 else
534 AC_MSG_RESULT([yes])
535 fi
536 fi
537 fi
539 # Disable liboffloadmic on unsupported systems.
540 if test -d ${srcdir}/liboffloadmic; then
541 if test x$enable_liboffloadmic != xno; then
542 AC_MSG_CHECKING([for liboffloadmic support])
543 if (srcdir=${srcdir}/liboffloadmic; \
544 . ${srcdir}/configure.tgt; \
545 test -n "$UNSUPPORTED")
546 then
547 AC_MSG_RESULT([no])
548 noconfigdirs="$noconfigdirs target-liboffloadmic"
549 else
550 AC_MSG_RESULT([yes])
551 fi
552 fi
553 fi
555 # Disable libitm on unsupported systems.
556 if test -d ${srcdir}/libitm; then
557 if test x$enable_libitm = x; then
558 AC_MSG_CHECKING([for libitm support])
559 if (srcdir=${srcdir}/libitm; \
560 . ${srcdir}/configure.tgt; \
561 test -n "$UNSUPPORTED")
562 then
563 AC_MSG_RESULT([no])
564 noconfigdirs="$noconfigdirs target-libitm"
565 else
566 AC_MSG_RESULT([yes])
567 fi
568 fi
569 fi
571 # Disable libsanitizer on unsupported systems.
572 if test -d ${srcdir}/libsanitizer; then
573 if test x$enable_libsanitizer = x; then
574 AC_MSG_CHECKING([for libsanitizer support])
575 if (srcdir=${srcdir}/libsanitizer; \
576 . ${srcdir}/configure.tgt; \
577 test -n "$UNSUPPORTED")
578 then
579 AC_MSG_RESULT([no])
580 noconfigdirs="$noconfigdirs target-libsanitizer"
581 else
582 AC_MSG_RESULT([yes])
583 fi
584 fi
585 fi
587 # Disable libvtv on unsupported systems.
588 if test -d ${srcdir}/libvtv; then
589 if test x$enable_libvtv = x; then
590 AC_MSG_CHECKING([for libvtv support])
591 if (srcdir=${srcdir}/libvtv; \
592 . ${srcdir}/configure.tgt; \
593 test "$VTV_SUPPORTED" != "yes")
594 then
595 AC_MSG_RESULT([no])
596 noconfigdirs="$noconfigdirs target-libvtv"
597 else
598 AC_MSG_RESULT([yes])
599 fi
600 fi
601 fi
604 # Enable libmpx on supported systems by request.
605 if test -d ${srcdir}/libmpx; then
606 if test x$enable_libmpx = x; then
607 AC_MSG_CHECKING([for libmpx support])
608 if (srcdir=${srcdir}/libmpx; \
609 . ${srcdir}/configure.tgt; \
610 test "$LIBMPX_SUPPORTED" != "yes")
611 then
612 AC_MSG_RESULT([no])
613 noconfigdirs="$noconfigdirs target-libmpx"
614 else
615 AC_MSG_RESULT([yes])
616 fi
617 fi
618 fi
620 # Disable libhsail-rt on unsupported systems.
621 if test -d ${srcdir}/libhsail-rt; then
622 if test x$enable_libhsail_rt = x; then
623 AC_MSG_CHECKING([for libhsail-rt support])
624 if (srcdir=${srcdir}/libhsail-rt; \
625 . ${srcdir}/configure.tgt; \
626 test -n "$UNSUPPORTED")
627 then
628 AC_MSG_RESULT([no])
629 unsupported_languages="$unsupported_languages brig"
630 # This implicitly disables also target-libhsail-rt as it won't
631 # get added to the build without BRIG FE.
632 else
633 AC_MSG_RESULT([yes])
634 fi
635 fi
636 fi
639 # Disable libquadmath for some systems.
640 case "${target}" in
641 avr-*-*)
642 noconfigdirs="$noconfigdirs target-libquadmath"
643 ;;
644 # libquadmath is unused on AIX and libquadmath build process use of
645 # LD_LIBRARY_PATH can break AIX bootstrap.
646 powerpc-*-aix* | rs6000-*-aix*)
647 noconfigdirs="$noconfigdirs target-libquadmath"
648 ;;
649 esac
651 # Disable libssp for some systems.
652 case "${target}" in
653 avr-*-*)
654 # No hosted I/O support.
655 noconfigdirs="$noconfigdirs target-libssp"
656 ;;
657 powerpc-*-aix* | rs6000-*-aix*)
658 noconfigdirs="$noconfigdirs target-libssp"
659 ;;
660 rl78-*-*)
661 # libssp uses a misaligned load to trigger a fault, but the RL78
662 # doesn't fault for those - instead, it gives a build-time error
663 # for explicit misaligned loads.
664 noconfigdirs="$noconfigdirs target-libssp"
665 ;;
666 visium-*-*)
667 # No hosted I/O support.
668 noconfigdirs="$noconfigdirs target-libssp"
669 ;;
670 esac
672 # Disable libstdc++-v3 for some systems.
673 # Allow user to override this if they pass --enable-libstdc++-v3
674 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
675 case "${target}" in
676 *-*-vxworks*)
677 # VxWorks uses the Dinkumware C++ library.
678 noconfigdirs="$noconfigdirs target-libstdc++-v3"
679 ;;
680 arm*-wince-pe*)
681 # the C++ libraries don't build on top of CE's C libraries
682 noconfigdirs="$noconfigdirs target-libstdc++-v3"
683 ;;
684 avr-*-*)
685 noconfigdirs="$noconfigdirs target-libstdc++-v3"
686 ;;
687 ft32-*-*)
688 noconfigdirs="$noconfigdirs target-libstdc++-v3"
689 ;;
690 esac
691 fi
693 # Disable Fortran for some systems.
694 case "${target}" in
695 mmix-*-*)
696 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
697 unsupported_languages="$unsupported_languages fortran"
698 ;;
699 esac
701 # Disable libffi for some systems.
702 case "${target}" in
703 powerpc-*-darwin*)
704 ;;
705 i[[3456789]]86-*-darwin*)
706 ;;
707 x86_64-*-darwin[[912]]*)
708 ;;
709 *-*-darwin*)
710 noconfigdirs="$noconfigdirs target-libffi"
711 ;;
712 *-*-netware*)
713 noconfigdirs="$noconfigdirs target-libffi"
714 ;;
715 *-*-phoenix*)
716 noconfigdirs="$noconfigdirs target-libffi"
717 ;;
718 *-*-rtems*)
719 noconfigdirs="$noconfigdirs target-libffi"
720 ;;
721 *-*-tpf*)
722 noconfigdirs="$noconfigdirs target-libffi"
723 ;;
724 *-*-uclinux*)
725 noconfigdirs="$noconfigdirs target-libffi"
726 ;;
727 *-*-vxworks*)
728 noconfigdirs="$noconfigdirs target-libffi"
729 ;;
730 aarch64*-*-freebsd*)
731 noconfigdirs="$noconfigdirs target-libffi"
732 ;;
733 alpha*-*-*vms*)
734 noconfigdirs="$noconfigdirs target-libffi"
735 ;;
736 arm*-*-freebsd*)
737 noconfigdirs="$noconfigdirs target-libffi"
738 ;;
739 arm-wince-pe)
740 noconfigdirs="$noconfigdirs target-libffi"
741 ;;
742 arm*-*-symbianelf*)
743 noconfigdirs="$noconfigdirs target-libffi"
744 ;;
745 cris-*-* | crisv32-*-*)
746 case "${target}" in
747 *-*-linux*)
748 ;;
749 *) # See PR46792 regarding target-libffi.
750 noconfigdirs="$noconfigdirs target-libffi";;
751 esac
752 ;;
753 hppa*64*-*-hpux*)
754 noconfigdirs="$noconfigdirs target-libffi"
755 ;;
756 hppa*-hp-hpux11*)
757 ;;
758 hppa*-*-hpux*)
759 noconfigdirs="$noconfigdirs target-libffi"
760 ;;
761 ia64*-*-*vms*)
762 noconfigdirs="$noconfigdirs target-libffi"
763 ;;
764 i[[3456789]]86-w64-mingw*)
765 noconfigdirs="$noconfigdirs target-libffi"
766 ;;
767 i[[3456789]]86-*-mingw*)
768 noconfigdirs="$noconfigdirs target-libffi"
769 ;;
770 x86_64-*-mingw*)
771 noconfigdirs="$noconfigdirs target-libffi"
772 ;;
773 mmix-*-*)
774 noconfigdirs="$noconfigdirs target-libffi"
775 ;;
776 powerpc-*-aix*)
777 ;;
778 rs6000-*-aix*)
779 ;;
780 ft32-*-*)
781 noconfigdirs="$noconfigdirs target-libffi"
782 ;;
783 *-*-lynxos*)
784 noconfigdirs="$noconfigdirs target-libffi"
785 ;;
786 esac
788 # Disable the go frontend on systems where it is known to not work. Please keep
789 # this in sync with contrib/config-list.mk.
790 case "${target}" in
791 *-*-darwin* | *-*-cygwin* | *-*-mingw*)
792 unsupported_languages="$unsupported_languages go"
793 ;;
794 esac
796 # Disable libgo for some systems where it is known to not work.
797 # For testing, you can easily override this with --enable-libgo.
798 if test x$enable_libgo = x; then
799 case "${target}" in
800 *-*-darwin*)
801 # PR 46986
802 noconfigdirs="$noconfigdirs target-libgo"
803 ;;
804 *-*-cygwin* | *-*-mingw*)
805 noconfigdirs="$noconfigdirs target-libgo"
806 ;;
807 esac
808 fi
810 # Default libgloss CPU subdirectory.
811 libgloss_dir="$target_cpu"
813 case "${target}" in
814 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
815 libgloss_dir=wince
816 ;;
817 aarch64*-*-* )
818 libgloss_dir=aarch64
819 ;;
820 arm*-*-*)
821 libgloss_dir=arm
822 ;;
823 cris-*-* | crisv32-*-*)
824 libgloss_dir=cris
825 ;;
826 hppa*-*-*)
827 libgloss_dir=pa
828 ;;
829 i[[3456789]]86-*-*)
830 libgloss_dir=i386
831 ;;
832 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
833 libgloss_dir=m68hc11
834 ;;
835 m68*-*-* | fido-*-*)
836 libgloss_dir=m68k
837 ;;
838 mips*-*-*)
839 libgloss_dir=mips
840 ;;
841 powerpc*-*-*)
842 libgloss_dir=rs6000
843 ;;
844 sparc*-*-*)
845 libgloss_dir=sparc
846 ;;
847 esac
849 # Disable newlib and libgloss for various target OSes.
850 case "${target}" in
851 alpha*-dec-osf*)
852 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
853 ;;
854 i[[3456789]]86-*-linux*)
855 # This section makes it possible to build newlib natively on linux.
856 # If we are using a cross compiler then don't configure newlib.
857 if test x${is_cross_compiler} != xno ; then
858 noconfigdirs="$noconfigdirs target-newlib"
859 fi
860 noconfigdirs="$noconfigdirs target-libgloss"
861 # If we are not using a cross compiler, do configure newlib.
862 # Note however, that newlib will only be configured in this situation
863 # if the --with-newlib option has been given, because otherwise
864 # 'target-newlib' will appear in skipdirs.
865 ;;
866 i[[3456789]]86-*-rdos*)
867 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
868 ;;
869 sh*-*-pe|mips*-*-pe|arm-wince-pe)
870 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
871 ;;
872 sparc-*-sunos4*)
873 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
874 ;;
875 *-*-aix*)
876 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
877 ;;
878 *-*-beos*)
879 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
880 ;;
881 *-*-chorusos)
882 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
883 ;;
884 *-*-dragonfly*)
885 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
886 ;;
887 *-*-freebsd*)
888 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
889 ;;
890 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
891 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
892 ;;
893 *-*-lynxos*)
894 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
895 ;;
896 *-*-mingw*)
897 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
898 ;;
899 *-*-netbsd*)
900 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
901 ;;
902 *-*-netware*)
903 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
904 ;;
905 *-*-tpf*)
906 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
907 ;;
908 *-*-uclinux*)
909 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
910 ;;
911 *-*-vxworks*)
912 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
913 ;;
914 esac
916 case "${target}" in
917 *-*-chorusos)
918 ;;
919 aarch64-*-darwin*)
920 noconfigdirs="$noconfigdirs ld gas gdb gprof"
921 noconfigdirs="$noconfigdirs sim target-rda"
922 ;;
923 arm-*-darwin*)
924 noconfigdirs="$noconfigdirs ld gas gdb gprof"
925 noconfigdirs="$noconfigdirs sim target-rda"
926 ;;
927 powerpc-*-darwin*)
928 noconfigdirs="$noconfigdirs ld gas gdb gprof"
929 noconfigdirs="$noconfigdirs sim target-rda"
930 ;;
931 i[[3456789]]86-*-darwin*)
932 noconfigdirs="$noconfigdirs ld gprof"
933 noconfigdirs="$noconfigdirs sim target-rda"
934 ;;
935 x86_64-*-darwin[[912]]*)
936 noconfigdirs="$noconfigdirs ld gas gprof"
937 noconfigdirs="$noconfigdirs sim target-rda"
938 ;;
939 *-*-darwin*)
940 noconfigdirs="$noconfigdirs ld gas gdb gprof"
941 noconfigdirs="$noconfigdirs sim target-rda"
942 ;;
943 *-*-dragonfly*)
944 ;;
945 *-*-freebsd*)
946 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
947 && test -f /usr/local/include/gmp.h; then
948 with_gmp=/usr/local
949 fi
950 ;;
951 *-*-kaos*)
952 # Remove unsupported stuff on all kaOS configurations.
953 noconfigdirs="$noconfigdirs target-libgloss"
954 ;;
955 *-*-netbsd*)
956 ;;
957 *-*-netware*)
958 ;;
959 *-*-phoenix*)
960 noconfigdirs="$noconfigdirs target-libgloss"
961 ;;
962 *-*-rtems*)
963 noconfigdirs="$noconfigdirs target-libgloss"
964 ;;
965 # The tpf target doesn't support gdb yet.
966 *-*-tpf*)
967 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
968 ;;
969 *-*-uclinux*)
970 noconfigdirs="$noconfigdirs target-rda"
971 ;;
972 *-*-vxworks*)
973 ;;
974 alpha*-dec-osf*)
975 # ld works, but does not support shared libraries.
976 # gas doesn't generate exception information.
977 noconfigdirs="$noconfigdirs gas ld"
978 ;;
979 alpha*-*-*vms*)
980 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
981 ;;
982 alpha*-*-*)
983 # newlib is not 64 bit ready
984 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
985 ;;
986 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
987 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
988 ;;
989 arc*-*-*)
990 noconfigdirs="$noconfigdirs sim"
991 ;;
992 arm-*-pe*)
993 noconfigdirs="$noconfigdirs target-libgloss"
994 ;;
995 arm-*-riscix*)
996 noconfigdirs="$noconfigdirs ld target-libgloss"
997 ;;
998 avr-*-*)
999 if test x${with_avrlibc} != xno; then
1000 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1001 fi
1002 ;;
1003 c4x-*-* | tic4x-*-*)
1004 noconfigdirs="$noconfigdirs target-libgloss"
1005 ;;
1006 tic54x-*-*)
1007 noconfigdirs="$noconfigdirs target-libgloss gdb"
1008 ;;
1009 d10v-*-*)
1010 noconfigdirs="$noconfigdirs target-libgloss"
1011 ;;
1012 d30v-*-*)
1013 noconfigdirs="$noconfigdirs gdb"
1014 ;;
1015 fr30-*-elf*)
1016 noconfigdirs="$noconfigdirs gdb"
1017 ;;
1018 ft32-*-*)
1019 noconfigdirs="$noconfigdirs target-rda gprof"
1020 ;;
1021 moxie-*-*)
1022 noconfigdirs="$noconfigdirs"
1023 ;;
1024 h8300*-*-*)
1025 noconfigdirs="$noconfigdirs target-libgloss"
1026 ;;
1027 h8500-*-*)
1028 noconfigdirs="$noconfigdirs target-libgloss"
1029 ;;
1030 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1031 ;;
1032 hppa*64*-*-hpux*)
1033 noconfigdirs="$noconfigdirs gdb"
1034 ;;
1035 hppa*-*-hpux11*)
1036 noconfigdirs="$noconfigdirs gdb ld"
1037 ;;
1038 hppa*64*-*-linux*)
1039 ;;
1040 hppa*-*-linux*)
1041 ;;
1042 hppa*-*-*elf* | \
1043 hppa*-*-lites* | \
1044 hppa*-*-openbsd* | \
1045 hppa*64*-*-*)
1046 ;;
1047 hppa*-*-pro*)
1048 ;;
1049 hppa*-*-*)
1050 noconfigdirs="$noconfigdirs ld"
1051 ;;
1052 i960-*-*)
1053 noconfigdirs="$noconfigdirs gdb"
1054 ;;
1055 ia64*-*-elf*)
1056 # No gdb support yet.
1057 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1058 ;;
1059 ia64*-**-hpux*)
1060 # No ld support yet.
1061 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1062 ;;
1063 ia64*-*-*vms*)
1064 # No ld support yet.
1065 noconfigdirs="$noconfigdirs libgui itcl ld"
1066 ;;
1067 i[[3456789]]86-w64-mingw*)
1068 ;;
1069 i[[3456789]]86-*-mingw*)
1070 target_configdirs="$target_configdirs target-winsup"
1071 ;;
1072 *-*-cygwin*)
1073 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1074 noconfigdirs="$noconfigdirs target-libgloss"
1075 # always build newlib if winsup directory is present.
1076 if test -d "$srcdir/winsup/cygwin"; then
1077 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1078 elif test -d "$srcdir/newlib"; then
1079 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1080 fi
1081 ;;
1082 i[[3456789]]86-*-pe)
1083 noconfigdirs="$noconfigdirs target-libgloss"
1084 ;;
1085 i[[3456789]]86-*-sco3.2v5*)
1086 # The linker does not yet know about weak symbols in COFF,
1087 # and is not configured to handle mixed ELF and COFF.
1088 noconfigdirs="$noconfigdirs ld target-libgloss"
1089 ;;
1090 i[[3456789]]86-*-sco*)
1091 noconfigdirs="$noconfigdirs gprof target-libgloss"
1092 ;;
1093 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1094 noconfigdirs="$noconfigdirs target-libgloss"
1095 ;;
1096 i[[3456789]]86-*-sysv4*)
1097 noconfigdirs="$noconfigdirs target-libgloss"
1098 ;;
1099 i[[3456789]]86-*-beos*)
1100 noconfigdirs="$noconfigdirs gdb"
1101 ;;
1102 i[[3456789]]86-*-rdos*)
1103 noconfigdirs="$noconfigdirs gdb"
1104 ;;
1105 mmix-*-*)
1106 noconfigdirs="$noconfigdirs gdb"
1107 ;;
1108 mt-*-*)
1109 noconfigdirs="$noconfigdirs sim"
1110 ;;
1111 powerpc-*-aix*)
1112 # copied from rs6000-*-* entry
1113 noconfigdirs="$noconfigdirs gprof"
1114 ;;
1115 powerpc*-*-winnt* | powerpc*-*-pe*)
1116 target_configdirs="$target_configdirs target-winsup"
1117 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1118 # always build newlib.
1119 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1120 ;;
1121 # This is temporary until we can link against shared libraries
1122 powerpcle-*-solaris*)
1123 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1124 ;;
1125 powerpc-*-beos*)
1126 noconfigdirs="$noconfigdirs gdb"
1127 ;;
1128 rs6000-*-lynxos*)
1129 noconfigdirs="$noconfigdirs gprof"
1130 ;;
1131 rs6000-*-aix*)
1132 noconfigdirs="$noconfigdirs gprof"
1133 ;;
1134 rs6000-*-*)
1135 noconfigdirs="$noconfigdirs gprof"
1136 ;;
1137 m68k-apollo-*)
1138 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1139 ;;
1140 microblaze*)
1141 noconfigdirs="$noconfigdirs gprof"
1142 ;;
1143 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1144 if test x$with_newlib = xyes; then
1145 noconfigdirs="$noconfigdirs gprof"
1146 fi
1147 ;;
1148 mips*-*-irix5*)
1149 noconfigdirs="$noconfigdirs gprof target-libgloss"
1150 ;;
1151 mips*-*-irix6*)
1152 noconfigdirs="$noconfigdirs gprof target-libgloss"
1153 ;;
1154 mips*-*-bsd*)
1155 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1156 ;;
1157 mips*-*-linux*)
1158 ;;
1159 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1160 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1161 noconfigdirs="$noconfigdirs ld gas gprof"
1162 ;;
1163 mips*-*-*)
1164 noconfigdirs="$noconfigdirs gprof"
1165 ;;
1166 nvptx*-*-*)
1167 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1168 ;;
1169 sh-*-*)
1170 case "${target}" in
1171 sh*-*-elf)
1172 ;;
1173 *)
1174 noconfigdirs="$noconfigdirs target-libgloss" ;;
1175 esac
1176 ;;
1177 sparc-*-sunos4*)
1178 if test x${is_cross_compiler} = xno ; then
1179 use_gnu_ld=no
1180 fi
1181 ;;
1182 tic6x-*-*)
1183 noconfigdirs="$noconfigdirs sim"
1184 ;;
1185 tilepro*-*-* | tilegx*-*-*)
1186 noconfigdirs="$noconfigdirs sim"
1187 ;;
1188 v810-*-*)
1189 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1190 ;;
1191 vax-*-*)
1192 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1193 ;;
1194 wasm32-*-*)
1195 noconfigdirs="$noconfigdirs ld"
1196 ;;
1197 esac
1199 # If we aren't building newlib, then don't build libgloss, since libgloss
1200 # depends upon some newlib header files.
1201 case "${noconfigdirs}" in
1202 *target-libgloss*) ;;
1203 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1204 esac
1206 # Work in distributions that contain no compiler tools, like Autoconf.
1207 host_makefile_frag=/dev/null
1208 if test -d ${srcdir}/config ; then
1209 case "${host}" in
1210 i[[3456789]]86-*-msdosdjgpp*)
1211 host_makefile_frag="config/mh-djgpp"
1212 ;;
1213 *-cygwin*)
1214 ACX_CHECK_CYGWIN_CAT_WORKS
1215 host_makefile_frag="config/mh-cygwin"
1216 ;;
1217 *-mingw*)
1218 host_makefile_frag="config/mh-mingw"
1219 ;;
1220 alpha*-linux*)
1221 host_makefile_frag="config/mh-alpha-linux"
1222 ;;
1223 hppa*-hp-hpux10*)
1224 host_makefile_frag="config/mh-pa-hpux10"
1225 ;;
1226 hppa*-hp-hpux*)
1227 host_makefile_frag="config/mh-pa"
1228 ;;
1229 hppa*-*)
1230 host_makefile_frag="config/mh-pa"
1231 ;;
1232 *-*-darwin*)
1233 host_makefile_frag="config/mh-darwin"
1234 ;;
1235 powerpc-*-aix*)
1236 host_makefile_frag="config/mh-ppc-aix"
1237 ;;
1238 rs6000-*-aix*)
1239 host_makefile_frag="config/mh-ppc-aix"
1240 ;;
1241 esac
1242 fi
1244 if test "${build}" != "${host}" ; then
1245 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1246 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1247 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1248 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1249 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1250 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1251 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1252 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1253 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1254 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1255 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1256 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1257 else
1258 AR_FOR_BUILD="\$(AR)"
1259 AS_FOR_BUILD="\$(AS)"
1260 CC_FOR_BUILD="\$(CC)"
1261 CXX_FOR_BUILD="\$(CXX)"
1262 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1263 GOC_FOR_BUILD="\$(GOC)"
1264 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1265 LD_FOR_BUILD="\$(LD)"
1266 NM_FOR_BUILD="\$(NM)"
1267 RANLIB_FOR_BUILD="\$(RANLIB)"
1268 WINDRES_FOR_BUILD="\$(WINDRES)"
1269 WINDMC_FOR_BUILD="\$(WINDMC)"
1270 fi
1272 AC_PROG_CC
1273 AC_PROG_CXX
1275 # We must set the default linker to the linker used by gcc for the correct
1276 # operation of libtool. If LD is not defined and we are using gcc, try to
1277 # set the LD default to the ld used by gcc.
1278 if test -z "$LD"; then
1279 if test "$GCC" = yes; then
1280 case $build in
1281 *-*-mingw*)
1282 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1283 *)
1284 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1285 esac
1286 case $gcc_prog_ld in
1287 # Accept absolute paths.
1288 [[\\/]* | [A-Za-z]:[\\/]*)]
1289 LD="$gcc_prog_ld" ;;
1290 esac
1291 fi
1292 fi
1294 # Check whether -static-libstdc++ -static-libgcc is supported.
1295 have_static_libs=no
1296 if test "$GCC" = yes; then
1297 saved_LDFLAGS="$LDFLAGS"
1299 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1300 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1301 AC_LANG_PUSH(C++)
1302 AC_LINK_IFELSE([
1303 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1304 #error -static-libstdc++ not implemented
1305 #endif
1306 int main() {}],
1307 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1308 [AC_MSG_RESULT([no])])
1309 AC_LANG_POP(C++)
1311 LDFLAGS="$saved_LDFLAGS"
1312 fi
1314 ACX_PROG_GNAT
1315 ACX_PROG_CMP_IGNORE_INITIAL
1317 AC_ARG_ENABLE([bootstrap],
1318 [AS_HELP_STRING([--enable-bootstrap],
1319 [enable bootstrapping @<:@yes if native build@:>@])],,
1320 enable_bootstrap=default)
1322 # Issue errors and warnings for invalid/strange bootstrap combinations.
1323 if test -r $srcdir/gcc/configure; then
1324 have_compiler=yes
1325 else
1326 have_compiler=no
1327 fi
1329 case "$have_compiler:$host:$target:$enable_bootstrap" in
1330 *:*:*:no) ;;
1332 # Default behavior. Enable bootstrap if we have a compiler
1333 # and we are in a native configuration.
1334 yes:$build:$build:default)
1335 enable_bootstrap=yes ;;
1337 *:*:*:default)
1338 enable_bootstrap=no ;;
1340 # We have a compiler and we are in a native configuration, bootstrap is ok
1341 yes:$build:$build:yes)
1342 ;;
1344 # Other configurations, but we have a compiler. Assume the user knows
1345 # what he's doing.
1346 yes:*:*:yes)
1347 AC_MSG_WARN([trying to bootstrap a cross compiler])
1348 ;;
1350 # No compiler: if they passed --enable-bootstrap explicitly, fail
1351 no:*:*:yes)
1352 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1354 # Fail if wrong command line
1355 *)
1356 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1357 ;;
1358 esac
1360 # When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1361 # C++98 compiler can still start the bootstrap.
1362 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1363 CXX="$CXX -std=gnu++98"
1364 fi
1366 # Used for setting $lt_cv_objdir
1367 _LT_CHECK_OBJDIR
1369 # Check for GMP, MPFR and MPC
1370 gmplibs="-lmpc -lmpfr -lgmp"
1371 gmpinc=
1372 have_gmp=no
1374 # Specify a location for mpc
1375 # check for this first so it ends up on the link line before mpfr.
1376 AC_ARG_WITH(mpc,
1377 [AS_HELP_STRING([--with-mpc=PATH],
1378 [specify prefix directory for installed MPC package.
1379 Equivalent to --with-mpc-include=PATH/include
1380 plus --with-mpc-lib=PATH/lib])])
1381 AC_ARG_WITH(mpc-include,
1382 [AS_HELP_STRING([--with-mpc-include=PATH],
1383 [specify directory for installed MPC include files])])
1384 AC_ARG_WITH(mpc-lib,
1385 [AS_HELP_STRING([--with-mpc-lib=PATH],
1386 [specify directory for the installed MPC library])])
1388 if test "x$with_mpc" != x; then
1389 gmplibs="-L$with_mpc/lib $gmplibs"
1390 gmpinc="-I$with_mpc/include $gmpinc"
1391 fi
1392 if test "x$with_mpc_include" != x; then
1393 gmpinc="-I$with_mpc_include $gmpinc"
1394 fi
1395 if test "x$with_mpc_lib" != x; then
1396 gmplibs="-L$with_mpc_lib $gmplibs"
1397 fi
1398 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1399 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1400 gmpinc='-I$$s/mpc/src '"$gmpinc"
1401 # Do not test the mpc version. Assume that it is sufficient, since
1402 # it is in the source tree, and the library has not been built yet
1403 # but it would be included on the link line in the version check below
1404 # hence making the test fail.
1405 have_gmp=yes
1406 fi
1408 # Specify a location for mpfr
1409 # check for this first so it ends up on the link line before gmp.
1410 AC_ARG_WITH(mpfr-dir,
1411 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1412 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1413 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1415 AC_ARG_WITH(mpfr,
1416 [AS_HELP_STRING([--with-mpfr=PATH],
1417 [specify prefix directory for installed MPFR package.
1418 Equivalent to --with-mpfr-include=PATH/include
1419 plus --with-mpfr-lib=PATH/lib])])
1420 AC_ARG_WITH(mpfr-include,
1421 [AS_HELP_STRING([--with-mpfr-include=PATH],
1422 [specify directory for installed MPFR include files])])
1423 AC_ARG_WITH(mpfr-lib,
1424 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1425 [specify directory for the installed MPFR library])])
1427 if test "x$with_mpfr" != x; then
1428 gmplibs="-L$with_mpfr/lib $gmplibs"
1429 gmpinc="-I$with_mpfr/include $gmpinc"
1430 fi
1431 if test "x$with_mpfr_include" != x; then
1432 gmpinc="-I$with_mpfr_include $gmpinc"
1433 fi
1434 if test "x$with_mpfr_lib" != x; then
1435 gmplibs="-L$with_mpfr_lib $gmplibs"
1436 fi
1437 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1438 # MPFR v3.1.0 moved the sources into a src sub-directory.
1439 if ! test -d ${srcdir}/mpfr/src; then
1440 AC_MSG_ERROR([dnl
1441 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1442 fi
1443 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1444 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1445 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1446 # Do not test the mpfr version. Assume that it is sufficient, since
1447 # it is in the source tree, and the library has not been built yet
1448 # but it would be included on the link line in the version check below
1449 # hence making the test fail.
1450 have_gmp=yes
1451 fi
1453 # Specify a location for gmp
1454 AC_ARG_WITH(gmp-dir,
1455 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1456 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1457 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1459 AC_ARG_WITH(gmp,
1460 [AS_HELP_STRING([--with-gmp=PATH],
1461 [specify prefix directory for the installed GMP package.
1462 Equivalent to --with-gmp-include=PATH/include
1463 plus --with-gmp-lib=PATH/lib])])
1464 AC_ARG_WITH(gmp-include,
1465 [AS_HELP_STRING([--with-gmp-include=PATH],
1466 [specify directory for installed GMP include files])])
1467 AC_ARG_WITH(gmp-lib,
1468 [AS_HELP_STRING([--with-gmp-lib=PATH],
1469 [specify directory for the installed GMP library])])
1472 if test "x$with_gmp" != x; then
1473 gmplibs="-L$with_gmp/lib $gmplibs"
1474 gmpinc="-I$with_gmp/include $gmpinc"
1475 fi
1476 if test "x$with_gmp_include" != x; then
1477 gmpinc="-I$with_gmp_include $gmpinc"
1478 fi
1479 if test "x$with_gmp_lib" != x; then
1480 gmplibs="-L$with_gmp_lib $gmplibs"
1481 fi
1482 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1483 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1484 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1485 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1486 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1487 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1488 # Do not test the gmp version. Assume that it is sufficient, since
1489 # it is in the source tree, and the library has not been built yet
1490 # but it would be included on the link line in the version check below
1491 # hence making the test fail.
1492 have_gmp=yes
1493 fi
1495 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1496 have_gmp=yes
1497 saved_CFLAGS="$CFLAGS"
1498 CFLAGS="$CFLAGS $gmpinc"
1499 # Check for the recommended and required versions of GMP.
1500 AC_MSG_CHECKING([for the correct version of gmp.h])
1501 AC_TRY_COMPILE([#include "gmp.h"],[
1502 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1503 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1504 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1505 choke me
1506 #endif
1507 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1508 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1509 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1510 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1511 choke me
1512 #endif
1513 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1514 [AC_MSG_RESULT([no]); have_gmp=no])
1516 # If we have GMP, check the MPFR version.
1517 if test x"$have_gmp" = xyes; then
1518 # Check for the recommended and required versions of MPFR.
1519 AC_MSG_CHECKING([for the correct version of mpfr.h])
1520 AC_TRY_COMPILE([#include <gmp.h>
1521 #include <mpfr.h>],[
1522 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1523 choke me
1524 #endif
1525 ], [AC_TRY_COMPILE([#include <gmp.h>
1526 #include <mpfr.h>],[
1527 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1528 choke me
1529 #endif
1530 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1531 [AC_MSG_RESULT([no]); have_gmp=no])
1532 fi
1534 # Check for the MPC header version.
1535 if test x"$have_gmp" = xyes ; then
1536 # Check for the recommended and required versions of MPC.
1537 AC_MSG_CHECKING([for the correct version of mpc.h])
1538 AC_TRY_COMPILE([#include <mpc.h>],[
1539 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1540 choke me
1541 #endif
1542 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1543 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1544 choke me
1545 #endif
1546 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1547 [AC_MSG_RESULT([no]); have_gmp=no])
1548 fi
1550 # Now check the MPFR library.
1551 if test x"$have_gmp" = xyes; then
1552 saved_LIBS="$LIBS"
1553 LIBS="$LIBS $gmplibs"
1554 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1555 AC_TRY_LINK([#include <mpc.h>],[
1556 mpfr_t n;
1557 mpfr_t x;
1558 mpc_t c;
1559 int t;
1560 mpfr_init (n);
1561 mpfr_init (x);
1562 mpfr_atan2 (n, n, x, GMP_RNDN);
1563 mpfr_erfc (n, x, GMP_RNDN);
1564 mpfr_subnormalize (x, t, GMP_RNDN);
1565 mpfr_clear(n);
1566 mpfr_clear(x);
1567 mpc_init2 (c, 53);
1568 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1569 mpc_cosh (c, c, MPC_RNDNN);
1570 mpc_pow (c, c, c, MPC_RNDNN);
1571 mpc_acosh (c, c, MPC_RNDNN);
1572 mpc_clear (c);
1573 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1574 LIBS="$saved_LIBS"
1575 fi
1577 CFLAGS="$saved_CFLAGS"
1579 # The library versions listed in the error message below should match
1580 # the HARD-minimums enforced above.
1581 if test x$have_gmp != xyes; then
1582 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1583 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1584 their locations. Source code for these libraries can be found at
1585 their respective hosting sites as well as at
1586 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1587 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1588 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1589 make sure that you have installed both the libraries and the header
1590 files. They may be located in separate packages.])
1591 fi
1592 fi
1594 # Flags needed for both GMP, MPFR and/or MPC.
1595 AC_SUBST(gmplibs)
1596 AC_SUBST(gmpinc)
1597 AC_SUBST(extra_mpfr_configure_flags)
1598 AC_SUBST(extra_mpc_gmp_configure_flags)
1599 AC_SUBST(extra_mpc_mpfr_configure_flags)
1600 AC_SUBST(extra_isl_gmp_configure_flags)
1602 # Libraries to use for stage1 or when not bootstrapping.
1603 AC_ARG_WITH(stage1-libs,
1604 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1605 [if test "$withval" = "no" -o "$withval" = "yes"; then
1606 stage1_libs=
1607 else
1608 stage1_libs=$withval
1609 fi],
1610 [stage1_libs=])
1611 AC_SUBST(stage1_libs)
1613 # Linker flags to use for stage1 or when not bootstrapping.
1614 AC_ARG_WITH(stage1-ldflags,
1615 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1616 [if test "$withval" = "no" -o "$withval" = "yes"; then
1617 stage1_ldflags=
1618 else
1619 stage1_ldflags=$withval
1620 fi],
1621 [stage1_ldflags=
1622 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1623 # if supported. But if the user explicitly specified the libraries to use,
1624 # trust that they are doing what they want.
1625 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1626 stage1_ldflags="-static-libstdc++ -static-libgcc"
1627 fi])
1628 AC_SUBST(stage1_ldflags)
1630 # Libraries to use for stage2 and later builds.
1631 AC_ARG_WITH(boot-libs,
1632 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1633 [if test "$withval" = "no" -o "$withval" = "yes"; then
1634 poststage1_libs=
1635 else
1636 poststage1_libs=$withval
1637 fi],
1638 [poststage1_libs=])
1639 AC_SUBST(poststage1_libs)
1641 # Linker flags to use for stage2 and later builds.
1642 AC_ARG_WITH(boot-ldflags,
1643 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1644 [linker flags for stage2 and later])],
1645 [if test "$withval" = "no" -o "$withval" = "yes"; then
1646 poststage1_ldflags=
1647 else
1648 poststage1_ldflags=$withval
1649 fi],
1650 [poststage1_ldflags=
1651 # In stages 2 and 3, default to linking libstdc++ and libgcc
1652 # statically. But if the user explicitly specified the libraries to
1653 # use, trust that they are doing what they want.
1654 if test "$poststage1_libs" = ""; then
1655 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1656 fi])
1657 AC_SUBST(poststage1_ldflags)
1659 # GCC GRAPHITE dependency isl.
1660 # Basic setup is inlined here, actual checks are in config/isl.m4
1662 AC_ARG_WITH(isl,
1663 [AS_HELP_STRING(
1664 [--with-isl=PATH],
1665 [Specify prefix directory for the installed isl package.
1666 Equivalent to --with-isl-include=PATH/include
1667 plus --with-isl-lib=PATH/lib])])
1669 # Treat --without-isl as a request to disable
1670 # GRAPHITE support and skip all following checks.
1671 if test "x$with_isl" != "xno"; then
1672 # Check for isl
1673 dnl Provide configure switches and initialize islinc & isllibs
1674 dnl with user input.
1675 ISL_INIT_FLAGS
1676 dnl The versions of isl that work for Graphite
1677 ISL_CHECK_VERSION()
1678 dnl Only execute fail-action, if isl has been requested.
1679 ISL_IF_FAILED([
1680 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1681 fi
1683 # If the isl check failed, disable builds of in-tree variant of isl
1684 if test "x$with_isl" = xno ||
1685 test "x$gcc_cv_isl" = xno; then
1686 noconfigdirs="$noconfigdirs isl"
1687 islinc=
1688 fi
1690 AC_SUBST(isllibs)
1691 AC_SUBST(islinc)
1693 # Check for LTO support.
1694 AC_ARG_ENABLE(lto,
1695 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1696 enable_lto=$enableval,
1697 enable_lto=yes; default_enable_lto=yes)
1699 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1700 build_lto_plugin=yes
1701 ],[if test x"$default_enable_lto" = x"yes" ; then
1702 case $target in
1703 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1704 # On other non-ELF platforms, LTO has yet to be validated.
1705 *) enable_lto=no ;;
1706 esac
1707 else
1708 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1709 # It would also be nice to check the binutils support, but we don't
1710 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1711 # warn during gcc/ subconfigure; unless you're bootstrapping with
1712 # -flto it won't be needed until after installation anyway.
1713 case $target in
1714 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1715 *) if test x"$enable_lto" = x"yes"; then
1716 AC_MSG_ERROR([LTO support is not enabled for this target.])
1717 fi
1718 ;;
1719 esac
1720 fi
1721 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1722 # Build it unless LTO was explicitly disabled.
1723 case $target in
1724 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1725 *) ;;
1726 esac
1727 ])
1729 AC_ARG_ENABLE(linker-plugin-configure-flags,
1730 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1731 [additional flags for configuring linker plugins @<:@none@:>@])],
1732 extra_linker_plugin_configure_flags=$enableval,
1733 extra_linker_plugin_configure_flags=)
1734 AC_SUBST(extra_linker_plugin_configure_flags)
1735 AC_ARG_ENABLE(linker-plugin-flags,
1736 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1737 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1738 extra_linker_plugin_flags=$enableval,
1739 extra_linker_plugin_flags=)
1740 AC_SUBST(extra_linker_plugin_flags)
1742 # Enable --enable-host-shared.
1743 # Checked early to determine whether jit is an 'all' language
1744 AC_ARG_ENABLE(host-shared,
1745 [AS_HELP_STRING([--enable-host-shared],
1746 [build host code as shared libraries])],
1747 [host_shared=$enableval], [host_shared=no])
1748 AC_SUBST(host_shared)
1750 # By default, C and C++ are the only stage 1 languages.
1751 stage1_languages=,c,
1753 # Target libraries that we bootstrap.
1754 bootstrap_target_libs=,target-libgcc,
1756 # Figure out what language subdirectories are present.
1757 # Look if the user specified --enable-languages="..."; if not, use
1758 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1759 # go away some day.
1760 # NB: embedded tabs in this IF block -- do not untabify
1761 if test -d ${srcdir}/gcc; then
1762 if test x"${enable_languages+set}" != xset; then
1763 if test x"${LANGUAGES+set}" = xset; then
1764 enable_languages="${LANGUAGES}"
1765 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1766 else
1767 enable_languages=default
1768 fi
1769 else
1770 if test x"${enable_languages}" = x ||
1771 test x"${enable_languages}" = xyes;
1772 then
1773 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1774 exit 1
1775 fi
1776 fi
1777 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1779 # 'f95' is the old name for the 'fortran' language. We issue a warning
1780 # and make the substitution.
1781 case ,${enable_languages}, in
1782 *,f95,*)
1783 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1784 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1785 ;;
1786 esac
1788 # If bootstrapping, C++ must be enabled.
1789 case ",$enable_languages,:$enable_bootstrap" in
1790 *,c++,*:*) ;;
1791 *:yes)
1792 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1793 enable_languages="${enable_languages},c++"
1794 else
1795 AC_MSG_ERROR([bootstrapping requires c++ sources])
1796 fi
1797 ;;
1798 esac
1800 # First scan to see if an enabled language requires some other language.
1801 # We assume that a given config-lang.in will list all the language
1802 # front ends it requires, even if some are required indirectly.
1803 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1804 case ${lang_frag} in
1805 ..) ;;
1806 # The odd quoting in the next line works around
1807 # an apparent bug in bash 1.12 on linux.
1808 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1809 *)
1810 # From the config-lang.in, get $language, $lang_requires, and
1811 # $lang_requires_boot_languages.
1812 language=
1813 lang_requires=
1814 lang_requires_boot_languages=
1815 # set srcdir during sourcing lang_frag to the gcc dir.
1816 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1817 # polutes this shell
1818 saved_srcdir=${srcdir}
1819 srcdir=${srcdir}/gcc . ${lang_frag}
1820 srcdir=${saved_srcdir}
1821 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1822 case ,${enable_languages}, in
1823 *,$other,*) ;;
1824 *,default,*) ;;
1825 *,all,*) ;;
1826 *,$language,*)
1827 echo " \`$other' language required by \`$language'; enabling" 1>&2
1828 enable_languages="${enable_languages},${other}"
1829 ;;
1830 esac
1831 done
1832 for other in ${lang_requires_boot_languages} ; do
1833 if test "$other" != "c"; then
1834 case ,${enable_stage1_languages}, in
1835 *,$other,*) ;;
1836 *,default,*) ;;
1837 *,all,*) ;;
1838 *)
1839 case ,${enable_languages}, in
1840 *,$language,*)
1841 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1842 enable_stage1_languages="$enable_stage1_languages,${other}"
1843 ;;
1844 esac
1845 ;;
1846 esac
1847 fi
1848 done
1849 ;;
1850 esac
1851 done
1853 new_enable_languages=,c,
1855 # If LTO is enabled, add the LTO front end.
1856 if test "$enable_lto" = "yes" ; then
1857 case ,${enable_languages}, in
1858 *,lto,*) ;;
1859 *) enable_languages="${enable_languages},lto" ;;
1860 esac
1861 if test "${build_lto_plugin}" = "yes" ; then
1862 configdirs="$configdirs lto-plugin"
1863 fi
1864 fi
1866 # If we're building an offloading compiler, add the LTO front end.
1867 if test x"$enable_as_accelerator_for" != x ; then
1868 case ,${enable_languages}, in
1869 *,lto,*) ;;
1870 *) enable_languages="${enable_languages},lto" ;;
1871 esac
1872 fi
1874 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
1875 potential_languages=,c,
1877 enabled_target_libs=
1878 disabled_target_libs=
1880 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1881 case ${lang_frag} in
1882 ..) ;;
1883 # The odd quoting in the next line works around
1884 # an apparent bug in bash 1.12 on linux.
1885 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1886 *)
1887 # From the config-lang.in, get $language, $target_libs,
1888 # $lang_dirs, $boot_language, and $build_by_default
1889 language=
1890 target_libs=
1891 lang_dirs=
1892 subdir_requires=
1893 boot_language=no
1894 build_by_default=yes
1895 # set srcdir during sourcing. See above about save & restore
1896 saved_srcdir=${srcdir}
1897 srcdir=${srcdir}/gcc . ${lang_frag}
1898 srcdir=${saved_srcdir}
1899 if test x${language} = x; then
1900 echo "${lang_frag} doesn't set \$language." 1>&2
1901 exit 1
1902 fi
1904 if test "$language" = "c++"; then
1905 boot_language=yes
1906 fi
1908 add_this_lang=no
1909 # C is always enabled, so no need to add it again
1910 if test "$language" != "c"; then
1911 case ,${enable_languages}, in
1912 *,${language},*)
1913 # Language was explicitly selected; include it
1914 add_this_lang=yes
1915 ;;
1916 *,all,*)
1917 # All languages are enabled
1918 add_this_lang=all
1919 ;;
1920 *,default,*)
1921 # 'default' was selected, select it if it is a default language
1922 add_this_lang=${build_by_default}
1923 ;;
1924 esac
1925 fi
1927 # Disable languages that need other directories if these aren't available.
1928 for i in $subdir_requires; do
1929 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1930 case ${add_this_lang} in
1931 yes)
1932 # Specifically requested language; tell them.
1933 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1934 ;;
1935 all)
1936 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
1937 add_this_lang=unsupported
1938 ;;
1939 *)
1940 # Silently disable.
1941 add_this_lang=unsupported
1942 ;;
1943 esac
1944 done
1946 # Disable Ada if no preexisting GNAT is available.
1947 case ${add_this_lang}:${language}:${have_gnat} in
1948 yes:ada:no)
1949 # Specifically requested language; tell them.
1950 AC_MSG_ERROR([GNAT is required to build $language])
1951 ;;
1952 all:ada:no)
1953 AC_MSG_WARN([GNAT is required to build $language])
1954 add_this_lang=unsupported
1955 ;;
1956 *:ada:no)
1957 # Silently disable.
1958 add_this_lang=unsupported
1959 ;;
1960 esac
1962 # Disable jit if -enable-host-shared not specified
1963 case ${add_this_lang}:${language}:${host_shared} in
1964 yes:jit:no)
1965 # PR jit/64780: explicitly specify --enable-host-shared
1966 AC_MSG_ERROR([
1967 Enabling language "jit" requires --enable-host-shared.
1969 --enable-host-shared typically slows the rest of the compiler down by
1970 a few %, so you must explicitly enable it.
1972 If you want to build both the jit and the regular compiler, it is often
1973 best to do this via two separate configure/builds, in separate
1974 directories, to avoid imposing the performance cost of
1975 --enable-host-shared on the regular compiler.])
1976 ;;
1977 all:jit:no)
1978 AC_MSG_WARN([--enable-host-shared required to build $language])
1979 add_this_lang=unsupported
1980 ;;
1981 *:jit:no)
1982 # Silently disable.
1983 add_this_lang=unsupported
1984 ;;
1985 esac
1987 # Disable a language that is unsupported by the target.
1988 case "${add_this_lang}: $unsupported_languages " in
1989 no:*) ;;
1990 unsupported:*) ;;
1991 *:*" $language "*)
1992 AC_MSG_WARN([${language} not supported for this target])
1993 add_this_lang=unsupported
1994 ;;
1995 esac
1997 case $add_this_lang in
1998 unsupported)
1999 # Remove language-dependent dirs.
2000 disabled_target_libs="$disabled_target_libs $target_libs"
2001 noconfigdirs="$noconfigdirs $lang_dirs"
2002 ;;
2003 no)
2004 # Remove language-dependent dirs; still show language as supported.
2005 disabled_target_libs="$disabled_target_libs $target_libs"
2006 noconfigdirs="$noconfigdirs $lang_dirs"
2007 potential_languages="${potential_languages}${language},"
2008 ;;
2009 all|yes)
2010 new_enable_languages="${new_enable_languages}${language},"
2011 potential_languages="${potential_languages}${language},"
2012 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2013 enabled_target_libs="$enabled_target_libs $target_libs"
2014 case "${boot_language}:,$enable_stage1_languages," in
2015 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2016 # Add to (comma-separated) list of stage 1 languages.
2017 case ",$stage1_languages," in
2018 *,$language,* | ,yes, | ,all,) ;;
2019 *) stage1_languages="${stage1_languages}${language}," ;;
2020 esac
2021 # We need to bootstrap any supporting libraries.
2022 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2023 ;;
2024 esac
2025 ;;
2026 esac
2027 ;;
2028 esac
2029 done
2031 # Add target libraries which are only needed for disabled languages
2032 # to noconfigdirs.
2033 if test -n "$disabled_target_libs"; then
2034 for dir in $disabled_target_libs; do
2035 case " $enabled_target_libs " in
2036 *" ${dir} "*) ;;
2037 *) noconfigdirs="$noconfigdirs $dir" ;;
2038 esac
2039 done
2040 fi
2042 AC_ARG_ENABLE(stage1-languages,
2043 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2044 [choose additional languages to build during
2045 stage1. Mostly useful for compiler development])],
2046 [case ,${enable_stage1_languages}, in
2047 ,no,|,,)
2048 # Set it to something that will have no effect in the loop below
2049 enable_stage1_languages=c ;;
2050 ,yes,)
2051 enable_stage1_languages=`echo $new_enable_languages | \
2052 sed -e "s/^,//" -e "s/,$//" ` ;;
2053 *,all,*)
2054 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2055 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2056 esac
2058 # Add "good" languages from enable_stage1_languages to stage1_languages,
2059 # while "bad" languages go in missing_languages. Leave no duplicates.
2060 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2061 case $potential_languages in
2062 *,$i,*)
2063 case $stage1_languages in
2064 *,$i,*) ;;
2065 *) stage1_languages="$stage1_languages$i," ;;
2066 esac ;;
2067 *)
2068 case $missing_languages in
2069 *,$i,*) ;;
2070 *) missing_languages="$missing_languages$i," ;;
2071 esac ;;
2072 esac
2073 done])
2075 # Remove leading/trailing commas that were added for simplicity
2076 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2077 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2078 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2079 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2081 if test "x$missing_languages" != x; then
2082 AC_MSG_ERROR([
2083 The following requested languages could not be built: ${missing_languages}
2084 Supported languages are: ${potential_languages}])
2085 fi
2086 if test "x$new_enable_languages" != "x$enable_languages"; then
2087 echo The following languages will be built: ${new_enable_languages}
2088 enable_languages="$new_enable_languages"
2089 fi
2091 AC_SUBST(stage1_languages)
2092 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2093 fi
2095 # Handle --disable-<component> generically.
2096 for dir in $configdirs $build_configdirs $target_configdirs ; do
2097 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2098 varname=`echo $dirname | sed -e s/+/_/g`
2099 if eval test x\${enable_${varname}} "=" xno ; then
2100 noconfigdirs="$noconfigdirs $dir"
2101 fi
2102 done
2104 # Check for Boehm's garbage collector
2105 AC_ARG_ENABLE(objc-gc,
2106 [AS_HELP_STRING([--enable-objc-gc],
2107 [enable use of Boehm's garbage collector with the
2108 GNU Objective-C runtime])])
2109 AC_ARG_WITH([target-bdw-gc],
2110 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2111 [specify prefix directory for installed bdw-gc package.
2112 Equivalent to --with-target-bdw-gc-include=PATH/include
2113 plus --with-target-bdw-gc-lib=PATH/lib])])
2114 AC_ARG_WITH([target-bdw-gc-include],
2115 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2116 [specify directories for installed bdw-gc include files])])
2117 AC_ARG_WITH([target-bdw-gc-lib],
2118 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2119 [specify directories for installed bdw-gc library])])
2121 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2122 AC_MSG_CHECKING([for bdw garbage collector])
2123 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2124 dnl no bdw-gw options, assume default locations
2125 AC_MSG_RESULT([using bdw-gc in default locations])
2126 else
2127 dnl bdw-gw options, first error checking, complete checking in libobjc
2128 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2129 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2130 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2131 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2132 else
2133 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2134 fi
2135 fi
2136 esac
2138 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2139 case ,${enable_languages}, in
2140 *,c++,*)
2141 # Disable libitm, libsanitizer if we're not building libstdc++
2142 case "${noconfigdirs}" in
2143 *target-libstdc++-v3*)
2144 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2145 ;;
2146 *) ;;
2147 esac
2148 ;;
2149 *)
2150 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2151 ;;
2152 esac
2154 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2155 # $build_configdirs and $target_configdirs.
2156 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2158 notsupp=""
2159 for dir in . $skipdirs $noconfigdirs ; do
2160 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2161 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2162 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2163 if test -r $srcdir/$dirname/configure ; then
2164 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2165 true
2166 else
2167 notsupp="$notsupp $dir"
2168 fi
2169 fi
2170 fi
2171 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2172 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2173 if test -r $srcdir/$dirname/configure ; then
2174 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2175 true
2176 else
2177 notsupp="$notsupp $dir"
2178 fi
2179 fi
2180 fi
2181 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2182 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2183 if test -r $srcdir/$dirname/configure ; then
2184 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2185 true
2186 else
2187 notsupp="$notsupp $dir"
2188 fi
2189 fi
2190 fi
2191 done
2193 # Quietly strip out all directories which aren't configurable in this tree.
2194 # This relies on all configurable subdirectories being autoconfiscated, which
2195 # is now the case.
2196 build_configdirs_all="$build_configdirs"
2197 build_configdirs=
2198 for i in ${build_configdirs_all} ; do
2199 j=`echo $i | sed -e s/build-//g`
2200 if test -f ${srcdir}/$j/configure ; then
2201 build_configdirs="${build_configdirs} $i"
2202 fi
2203 done
2205 configdirs_all="$configdirs"
2206 configdirs=
2207 for i in ${configdirs_all} ; do
2208 if test -f ${srcdir}/$i/configure ; then
2209 configdirs="${configdirs} $i"
2210 fi
2211 done
2213 target_configdirs_all="$target_configdirs"
2214 target_configdirs=
2215 for i in ${target_configdirs_all} ; do
2216 j=`echo $i | sed -e s/target-//g`
2217 if test -f ${srcdir}/$j/configure ; then
2218 target_configdirs="${target_configdirs} $i"
2219 fi
2220 done
2222 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2223 # so we have to add it after the preceding checks.
2224 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2225 then
2226 case " $configdirs " in
2227 *" libiberty "*)
2228 # If we can build libiberty, we can also build libiberty-linker-plugin.
2229 configdirs="$configdirs libiberty-linker-plugin"
2230 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2231 --with-libiberty=../libiberty-linker-plugin";;
2232 *)
2233 AC_MSG_ERROR([libiberty missing]);;
2234 esac
2235 fi
2237 # Sometimes we have special requirements for the host libiberty.
2238 extra_host_libiberty_configure_flags=
2239 extra_host_zlib_configure_flags=
2240 case " $configdirs " in
2241 *" lto-plugin "* | *" libcc1 "*)
2242 # When these are to be built as shared libraries, the same applies to
2243 # libiberty.
2244 extra_host_libiberty_configure_flags=--enable-shared
2245 ;;
2246 *" bfd "*)
2247 # When bfd is to be built as a shared library, the same applies to
2248 # zlib.
2249 if test "$enable_shared" = "yes"; then
2250 extra_host_zlib_configure_flags=--enable-host-shared
2251 fi
2252 ;;
2253 esac
2254 AC_SUBST(extra_host_libiberty_configure_flags)
2255 AC_SUBST(extra_host_zlib_configure_flags)
2257 # Produce a warning message for the subdirs we can't configure.
2258 # This isn't especially interesting in the Cygnus tree, but in the individual
2259 # FSF releases, it's important to let people know when their machine isn't
2260 # supported by the one or two programs in a package.
2262 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2263 # If $appdirs is non-empty, at least one of those directories must still
2264 # be configured, or we error out. (E.g., if the gas release supports a
2265 # specified target in some subdirs but not the gas subdir, we shouldn't
2266 # pretend that all is well.)
2267 if test -n "$appdirs" ; then
2268 for dir in $appdirs ; do
2269 if test -r $dir/Makefile.in ; then
2270 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2271 appdirs=""
2272 break
2273 fi
2274 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2275 appdirs=""
2276 break
2277 fi
2278 fi
2279 done
2280 if test -n "$appdirs" ; then
2281 echo "*** This configuration is not supported by this package." 1>&2
2282 exit 1
2283 fi
2284 fi
2285 # Okay, some application will build, or we don't care to check. Still
2286 # notify of subdirs not getting built.
2287 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2288 echo " ${notsupp}" 1>&2
2289 echo " (Any other directories should still work fine.)" 1>&2
2290 fi
2292 case "$host" in
2293 *msdosdjgpp*)
2294 enable_gdbtk=no ;;
2295 esac
2297 # To find our prefix, in gcc_cv_tool_prefix.
2298 ACX_TOOL_DIRS
2300 copy_dirs=
2302 AC_ARG_WITH([build-sysroot],
2303 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2304 [use sysroot as the system root during the build])],
2305 [if test x"$withval" != x ; then
2306 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2307 fi],
2308 [SYSROOT_CFLAGS_FOR_TARGET=])
2309 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2311 AC_ARG_WITH([debug-prefix-map],
2312 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2313 [map A to B, C to D ... in debug information])],
2314 [if test x"$withval" != x; then
2315 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2316 for debug_map in $withval; do
2317 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2318 done
2319 fi],
2320 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2321 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2323 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2324 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2325 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2326 # We want to ensure that TARGET libraries (which we know are built with
2327 # gcc) are built with "-O2 -g", so include those options when setting
2328 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2329 if test "x$CFLAGS_FOR_TARGET" = x; then
2330 if test "x${is_cross_compiler}" = xyes; then
2331 CFLAGS_FOR_TARGET="-g -O2"
2332 else
2333 CFLAGS_FOR_TARGET=$CFLAGS
2334 case " $CFLAGS " in
2335 *" -O2 "*) ;;
2336 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2337 esac
2338 case " $CFLAGS " in
2339 *" -g "* | *" -g3 "*) ;;
2340 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2341 esac
2342 fi
2343 fi
2344 AC_SUBST(CFLAGS_FOR_TARGET)
2346 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2347 if test "x${is_cross_compiler}" = xyes; then
2348 CXXFLAGS_FOR_TARGET="-g -O2"
2349 else
2350 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2351 case " $CXXFLAGS " in
2352 *" -O2 "*) ;;
2353 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2354 esac
2355 case " $CXXFLAGS " in
2356 *" -g "* | *" -g3 "*) ;;
2357 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2358 esac
2359 fi
2360 fi
2361 AC_SUBST(CXXFLAGS_FOR_TARGET)
2363 AC_SUBST(LDFLAGS_FOR_TARGET)
2365 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2366 # the named directory are copied to $(tooldir)/sys-include.
2367 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2368 if test x${is_cross_compiler} = xno ; then
2369 echo 1>&2 '***' --with-headers is only supported when cross compiling
2370 exit 1
2371 fi
2372 if test x"${with_headers}" != xyes ; then
2373 x=${gcc_cv_tool_prefix}
2374 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2375 fi
2376 fi
2378 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2379 # the name directories are copied to $(tooldir)/lib. Multiple directories
2380 # are permitted.
2381 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2382 if test x${is_cross_compiler} = xno ; then
2383 echo 1>&2 '***' --with-libs is only supported when cross compiling
2384 exit 1
2385 fi
2386 if test x"${with_libs}" != xyes ; then
2387 # Copy the libraries in reverse order, so that files in the first named
2388 # library override files in subsequent libraries.
2389 x=${gcc_cv_tool_prefix}
2390 for l in ${with_libs}; do
2391 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2392 done
2393 fi
2394 fi
2396 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2397 #
2398 # This is done by determining whether or not the appropriate directory
2399 # is available, and by checking whether or not specific configurations
2400 # have requested that this magic not happen.
2401 #
2402 # The command line options always override the explicit settings in
2403 # configure.ac, and the settings in configure.ac override this magic.
2404 #
2405 # If the default for a toolchain is to use GNU as and ld, and you don't
2406 # want to do that, then you should use the --without-gnu-as and
2407 # --without-gnu-ld options for the configure script. Similarly, if
2408 # the default is to use the included zlib and you don't want to do that,
2409 # you should use the --with-system-zlib option for the configure script.
2411 if test x${use_gnu_as} = x &&
2412 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2413 with_gnu_as=yes
2414 extra_host_args="$extra_host_args --with-gnu-as"
2415 fi
2417 if test x${use_gnu_ld} = x &&
2418 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2419 with_gnu_ld=yes
2420 extra_host_args="$extra_host_args --with-gnu-ld"
2421 fi
2423 if test x${use_included_zlib} = x &&
2424 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2425 :
2426 else
2427 with_system_zlib=yes
2428 extra_host_args="$extra_host_args --with-system-zlib"
2429 fi
2431 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2432 # can detect this case.
2434 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2435 with_newlib=yes
2436 extra_host_args="$extra_host_args --with-newlib"
2437 fi
2439 # Handle ${copy_dirs}
2440 set fnord ${copy_dirs}
2441 shift
2442 while test $# != 0 ; do
2443 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2444 :
2445 else
2446 echo Copying $1 to $2
2448 # Use the install script to create the directory and all required
2449 # parent directories.
2450 if test -d $2 ; then
2451 :
2452 else
2453 echo >config.temp
2454 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2455 fi
2457 # Copy the directory, assuming we have tar.
2458 # FIXME: Should we use B in the second tar? Not all systems support it.
2459 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2461 # It is the responsibility of the user to correctly adjust all
2462 # symlinks. If somebody can figure out how to handle them correctly
2463 # here, feel free to add the code.
2465 echo $1 > $2/COPIED
2466 fi
2467 shift; shift
2468 done
2470 # Determine a target-dependent exec_prefix that the installed
2471 # gcc will search in. Keep this list sorted by triplet, with
2472 # the *-*-osname triplets last.
2473 md_exec_prefix=
2474 case "${target}" in
2475 i[[34567]]86-pc-msdosdjgpp*)
2476 md_exec_prefix=/dev/env/DJDIR/bin
2477 ;;
2478 *-*-hpux* | \
2479 *-*-nto-qnx* | \
2480 *-*-solaris2*)
2481 md_exec_prefix=/usr/ccs/bin
2482 ;;
2483 esac
2485 extra_arflags_for_target=
2486 extra_nmflags_for_target=
2487 extra_ranlibflags_for_target=
2488 target_makefile_frag=/dev/null
2489 case "${target}" in
2490 spu-*-*)
2491 target_makefile_frag="config/mt-spu"
2492 ;;
2493 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2494 target_makefile_frag="config/mt-sde"
2495 ;;
2496 mipsisa*-*-elfoabi*)
2497 target_makefile_frag="config/mt-mips-elfoabi"
2498 ;;
2499 mips*-*-*linux* | mips*-*-gnu*)
2500 target_makefile_frag="config/mt-mips-gnu"
2501 ;;
2502 nios2-*-elf*)
2503 target_makefile_frag="config/mt-nios2-elf"
2504 ;;
2505 *-*-linux-android*)
2506 target_makefile_frag="config/mt-android"
2507 ;;
2508 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2509 target_makefile_frag="config/mt-gnu"
2510 ;;
2511 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2512 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2513 # commands to handle both 32-bit and 64-bit objects. These flags are
2514 # harmless if we're using GNU nm or ar.
2515 extra_arflags_for_target=" -X32_64"
2516 extra_nmflags_for_target=" -B -X32_64"
2517 ;;
2518 esac
2520 alphaieee_frag=/dev/null
2521 case $target in
2522 alpha*-*-*)
2523 # This just makes sure to use the -mieee option to build target libs.
2524 # This should probably be set individually by each library.
2525 alphaieee_frag="config/mt-alphaieee"
2526 ;;
2527 esac
2529 # If --enable-target-optspace always use -Os instead of -O2 to build
2530 # the target libraries, similarly if it is not specified, use -Os
2531 # on selected platforms.
2532 ospace_frag=/dev/null
2533 case "${enable_target_optspace}:${target}" in
2534 yes:*)
2535 ospace_frag="config/mt-ospace"
2536 ;;
2537 :d30v-*)
2538 ospace_frag="config/mt-d30v"
2539 ;;
2540 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2541 ospace_frag="config/mt-ospace"
2542 ;;
2543 no:* | :*)
2544 ;;
2545 *)
2546 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2547 ;;
2548 esac
2550 # Some systems (e.g., one of the i386-aix systems the gas testers are
2551 # using) don't handle "\$" correctly, so don't use it here.
2552 tooldir='${exec_prefix}'/${target_noncanonical}
2553 build_tooldir=${tooldir}
2555 # Create a .gdbinit file which runs the one in srcdir
2556 # and tells GDB to look there for source files.
2558 if test -r ${srcdir}/.gdbinit ; then
2559 case ${srcdir} in
2560 .) ;;
2561 *) cat > ./.gdbinit <<EOF
2562 # ${NO_EDIT}
2563 dir ${srcdir}
2564 dir .
2565 source ${srcdir}/.gdbinit
2566 EOF
2567 ;;
2568 esac
2569 fi
2571 # Make sure that the compiler is able to generate an executable. If it
2572 # can't, we are probably in trouble. We don't care whether we can run the
2573 # executable--we might be using a cross compiler--we only care whether it
2574 # can be created. At this point the main configure script has set CC.
2575 we_are_ok=no
2576 echo "int main () { return 0; }" > conftest.c
2577 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2578 if test $? = 0 ; then
2579 if test -s conftest || test -s conftest.exe ; then
2580 we_are_ok=yes
2581 fi
2582 fi
2583 case $we_are_ok in
2584 no)
2585 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2586 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2587 rm -f conftest*
2588 exit 1
2589 ;;
2590 esac
2591 rm -f conftest*
2593 # Decide which environment variable is used to find dynamic libraries.
2594 case "${host}" in
2595 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2596 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2597 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2598 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2599 esac
2601 # On systems where the dynamic library environment variable is PATH,
2602 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2603 # built executables to PATH.
2604 if test "$RPATH_ENVVAR" = PATH; then
2605 GCC_SHLIB_SUBDIR=/shlib
2606 else
2607 GCC_SHLIB_SUBDIR=
2608 fi
2610 # Adjust the toplevel makefile according to whether bootstrap was selected.
2611 case $enable_bootstrap in
2612 yes)
2613 bootstrap_suffix=bootstrap
2614 BUILD_CONFIG=bootstrap-debug
2615 ;;
2616 no)
2617 bootstrap_suffix=no-bootstrap
2618 BUILD_CONFIG=
2619 ;;
2620 esac
2622 AC_MSG_CHECKING(for default BUILD_CONFIG)
2624 AC_ARG_WITH([build-config],
2625 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2626 [use config/NAME.mk build configuration])],
2627 [case $with_build_config in
2628 yes) with_build_config= ;;
2629 no) with_build_config= BUILD_CONFIG= ;;
2630 esac])
2632 if test "x${with_build_config}" != x; then
2633 BUILD_CONFIG=$with_build_config
2634 else
2635 case $BUILD_CONFIG in
2636 bootstrap-debug)
2637 if echo "int f (void) { return 0; }" > conftest.c &&
2638 ${CC} -c conftest.c &&
2639 mv conftest.o conftest.o.g0 &&
2640 ${CC} -c -g conftest.c &&
2641 mv conftest.o conftest.o.g &&
2642 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2643 :
2644 else
2645 BUILD_CONFIG=
2646 fi
2647 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2648 ;;
2649 esac
2650 fi
2651 AC_MSG_RESULT($BUILD_CONFIG)
2652 AC_SUBST(BUILD_CONFIG)
2654 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2655 AC_MSG_CHECKING([for --enable-vtable-verify])
2656 AC_ARG_ENABLE(vtable-verify,
2657 [AS_HELP_STRING([--enable-vtable-verify],
2658 [Enable vtable verification feature])],
2659 [case "$enableval" in
2660 yes) enable_vtable_verify=yes ;;
2661 no) enable_vtable_verify=no ;;
2662 *) enable_vtable_verify=no;;
2663 esac],
2664 [enable_vtable_verify=no])
2665 AC_MSG_RESULT($enable_vtable_verify)
2667 # Record target_configdirs and the configure arguments for target and
2668 # build configuration in Makefile.
2669 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2670 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2671 bootstrap_fixincludes=no
2673 # If we are building libgomp, bootstrap it.
2674 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2675 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2676 fi
2678 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2679 # or bootstrap-ubsan, bootstrap it.
2680 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2681 case "$BUILD_CONFIG" in
2682 *bootstrap-asan* | *bootstrap-ubsan* )
2683 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2684 bootstrap_fixincludes=yes
2685 ;;
2686 esac
2687 fi
2689 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2690 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2691 test "$enable_vtable_verify" != no; then
2692 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2693 fi
2695 # If we are building libmpx and $BUILD_CONFIG contains bootstrap-mpx,
2696 # bootstrap it.
2697 if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then
2698 case "$BUILD_CONFIG" in
2699 *bootstrap-mpx* )
2700 bootstrap_target_libs=${bootstrap_target_libs}target-libmpx,
2701 ;;
2702 esac
2703 fi
2705 # Determine whether gdb needs tk/tcl or not.
2706 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2707 # and in that case we want gdb to be built without tk. Ugh!
2708 # In fact I believe gdb is the *only* package directly dependent on tk,
2709 # so we should be able to put the 'maybe's in unconditionally and
2710 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2711 # 100% sure that that's safe though.
2713 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2714 case "$enable_gdbtk" in
2715 no)
2716 GDB_TK="" ;;
2717 yes)
2718 GDB_TK="${gdb_tk}" ;;
2719 *)
2720 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2721 # distro. Eventually someone will fix this and move Insight, nee
2722 # gdbtk to a separate directory.
2723 if test -d ${srcdir}/gdb/gdbtk ; then
2724 GDB_TK="${gdb_tk}"
2725 else
2726 GDB_TK=""
2727 fi
2728 ;;
2729 esac
2730 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2731 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2733 # Strip out unwanted targets.
2735 # While at that, we remove Makefiles if we were started for recursive
2736 # configuration, so that the top-level Makefile reconfigures them,
2737 # like we used to do when configure itself was recursive.
2739 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2740 # but now we're fixing up the Makefile ourselves with the additional
2741 # commands passed to AC_CONFIG_FILES. Use separate variables
2742 # extrasub-{build,host,target} not because there is any reason to split
2743 # the substitutions up that way, but only to remain below the limit of
2744 # 99 commands in a script, for HP-UX sed.
2745 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2747 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2748 yes:yes:*\ gold\ *:*,c++,*) ;;
2749 yes:yes:*\ gold\ *:*)
2750 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2751 ;;
2752 esac
2754 extrasub_build=
2755 for module in ${build_configdirs} ; do
2756 if test -z "${no_recursion}" \
2757 && test -f ${build_subdir}/${module}/Makefile; then
2758 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2759 rm -f ${build_subdir}/${module}/Makefile
2760 fi
2761 extrasub_build="$extrasub_build
2762 /^@if build-$module\$/d
2763 /^@endif build-$module\$/d
2764 /^@if build-$module-$bootstrap_suffix\$/d
2765 /^@endif build-$module-$bootstrap_suffix\$/d"
2766 done
2767 extrasub_host=
2768 for module in ${configdirs} ; do
2769 if test -z "${no_recursion}"; then
2770 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2771 if test -f ${file}; then
2772 echo 1>&2 "*** removing ${file} to force reconfigure"
2773 rm -f ${file}
2774 fi
2775 done
2776 fi
2777 case ${module},${bootstrap_fixincludes} in
2778 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2779 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2780 esac
2781 extrasub_host="$extrasub_host
2782 /^@if $module\$/d
2783 /^@endif $module\$/d
2784 /^@if $module-$host_bootstrap_suffix\$/d
2785 /^@endif $module-$host_bootstrap_suffix\$/d"
2786 done
2787 extrasub_target=
2788 for module in ${target_configdirs} ; do
2789 if test -z "${no_recursion}" \
2790 && test -f ${target_subdir}/${module}/Makefile; then
2791 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2792 rm -f ${target_subdir}/${module}/Makefile
2793 fi
2795 # We only bootstrap target libraries listed in bootstrap_target_libs.
2796 case $bootstrap_target_libs in
2797 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2798 *) target_bootstrap_suffix=no-bootstrap ;;
2799 esac
2801 extrasub_target="$extrasub_target
2802 /^@if target-$module\$/d
2803 /^@endif target-$module\$/d
2804 /^@if target-$module-$target_bootstrap_suffix\$/d
2805 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2806 done
2808 # Do the final fixup along with target modules.
2809 extrasub_target="$extrasub_target
2810 /^@if /,/^@endif /d"
2812 # Create the serialization dependencies. This uses a temporary file.
2814 AC_ARG_ENABLE([serial-configure],
2815 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2816 [force sequential configuration of
2817 sub-packages for the host, target or build
2818 machine, or all sub-packages])])
2820 case ${enable_serial_configure} in
2821 yes)
2822 enable_serial_build_configure=yes
2823 enable_serial_host_configure=yes
2824 enable_serial_target_configure=yes
2825 ;;
2826 esac
2828 # These force 'configure's to be done one at a time, to avoid problems
2829 # with contention over a shared config.cache.
2830 rm -f serdep.tmp
2831 echo '# serdep.tmp' > serdep.tmp
2832 olditem=
2833 test "x${enable_serial_build_configure}" = xyes &&
2834 for item in ${build_configdirs} ; do
2835 case ${olditem} in
2836 "") ;;
2837 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2838 esac
2839 olditem=${item}
2840 done
2841 olditem=
2842 test "x${enable_serial_host_configure}" = xyes &&
2843 for item in ${configdirs} ; do
2844 case ${olditem} in
2845 "") ;;
2846 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2847 esac
2848 olditem=${item}
2849 done
2850 olditem=
2851 test "x${enable_serial_target_configure}" = xyes &&
2852 for item in ${target_configdirs} ; do
2853 case ${olditem} in
2854 "") ;;
2855 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2856 esac
2857 olditem=${item}
2858 done
2859 serialization_dependencies=serdep.tmp
2860 AC_SUBST_FILE(serialization_dependencies)
2862 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2863 # target, nonopt, and variable assignments. These are the ones we
2864 # might not want to pass down to subconfigures. The exception being
2865 # --cache-file=/dev/null, which is used to turn off the use of cache
2866 # files altogether, and which should be passed on to subconfigures.
2867 # Also strip program-prefix, program-suffix, and program-transform-name,
2868 # so that we can pass down a consistent program-transform-name.
2869 baseargs=
2870 tbaseargs=
2871 keep_next=no
2872 skip_next=no
2873 eval "set -- $ac_configure_args"
2874 for ac_arg
2875 do
2876 if test X"$skip_next" = X"yes"; then
2877 skip_next=no
2878 continue
2879 fi
2880 if test X"$keep_next" = X"yes"; then
2881 case $ac_arg in
2882 *\'*)
2883 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2884 esac
2885 baseargs="$baseargs '$ac_arg'"
2886 tbaseargs="$tbaseargs '$ac_arg'"
2887 keep_next=no
2888 continue
2889 fi
2891 # Handle separated arguments. Based on the logic generated by
2892 # autoconf 2.59.
2893 case $ac_arg in
2894 *=* | --config-cache | -C | -disable-* | --disable-* \
2895 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2896 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2897 | -with-* | --with-* | -without-* | --without-* | --x)
2898 separate_arg=no
2899 ;;
2900 -*)
2901 separate_arg=yes
2902 ;;
2903 *)
2904 separate_arg=no
2905 ;;
2906 esac
2908 skip_targ=no
2909 case $ac_arg in
2910 changequote(,)
2911 --with-* | --without-*)
2912 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2914 case $libopt in
2915 *[-_]include)
2916 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2917 ;;
2918 *[-_]lib)
2919 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2920 ;;
2921 *)
2922 lib=$libopt
2923 ;;
2924 esac
2925 changequote([,])
2927 case $lib in
2928 mpc | mpfr | gmp | isl)
2929 # If we're processing --with-$lib, --with-$lib-include or
2930 # --with-$lib-lib, for one of the libs above, and target is
2931 # different from host, don't pass the current argument to any
2932 # target library's configure.
2933 if test x$is_cross_compiler = xyes; then
2934 skip_targ=yes
2935 fi
2936 ;;
2937 esac
2938 ;;
2939 esac
2941 case "$ac_arg" in
2942 --cache-file=/dev/null | \
2943 -cache-file=/dev/null )
2944 # Handled here to avoid the test to skip args below.
2945 baseargs="$baseargs '$ac_arg'"
2946 tbaseargs="$tbaseargs '$ac_arg'"
2947 # Assert: $separate_arg should always be no.
2948 keep_next=$separate_arg
2949 ;;
2950 --no*)
2951 continue
2952 ;;
2953 --c* | \
2954 --sr* | \
2955 --ho* | \
2956 --bu* | \
2957 --t* | \
2958 --program-* | \
2959 -cache_file* | \
2960 -srcdir* | \
2961 -host* | \
2962 -build* | \
2963 -target* | \
2964 -program-prefix* | \
2965 -program-suffix* | \
2966 -program-transform-name* )
2967 skip_next=$separate_arg
2968 continue
2969 ;;
2970 -*)
2971 # An option. Add it.
2972 case $ac_arg in
2973 *\'*)
2974 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2975 esac
2976 baseargs="$baseargs '$ac_arg'"
2977 if test X"$skip_targ" = Xno; then
2978 tbaseargs="$tbaseargs '$ac_arg'"
2979 fi
2980 keep_next=$separate_arg
2981 ;;
2982 *)
2983 # Either a variable assignment, or a nonopt (triplet). Don't
2984 # pass it down; let the Makefile handle this.
2985 continue
2986 ;;
2987 esac
2988 done
2989 # Remove the initial space we just introduced and, as these will be
2990 # expanded by make, quote '$'.
2991 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2993 # Add in --program-transform-name, after --program-prefix and
2994 # --program-suffix have been applied to it. Autoconf has already
2995 # doubled dollar signs and backslashes in program_transform_name; we want
2996 # the backslashes un-doubled, and then the entire thing wrapped in single
2997 # quotes, because this will be expanded first by make and then by the shell.
2998 # Also, because we want to override the logic in subdir configure scripts to
2999 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3000 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3001 ${program_transform_name}
3002 EOF_SED
3003 gcc_transform_name=`cat conftestsed.out`
3004 rm -f conftestsed.out
3005 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3006 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3007 if test "$silent" = yes; then
3008 baseargs="$baseargs --silent"
3009 tbaseargs="$tbaseargs --silent"
3010 fi
3011 baseargs="$baseargs --disable-option-checking"
3012 tbaseargs="$tbaseargs --disable-option-checking"
3014 # Record and document user additions to sub configure arguments.
3015 AC_ARG_VAR([build_configargs],
3016 [additional configure arguments for build directories])
3017 AC_ARG_VAR([host_configargs],
3018 [additional configure arguments for host directories])
3019 AC_ARG_VAR([target_configargs],
3020 [additional configure arguments for target directories])
3022 # For the build-side libraries, we just need to pretend we're native,
3023 # and not use the same cache file. Multilibs are neither needed nor
3024 # desired. We can't even use the same cache file for all build-side
3025 # libraries, as they're compiled differently; some with C, some with
3026 # C++ or with different feature-enabling options.
3027 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3029 # For host modules, accept cache file option, or specification as blank.
3030 case "${cache_file}" in
3031 "") # empty
3032 cache_file_option="" ;;
3033 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3034 cache_file_option="--cache-file=${cache_file}" ;;
3035 *) # relative path
3036 cache_file_option="--cache-file=../${cache_file}" ;;
3037 esac
3039 # Host dirs don't like to share a cache file either, horribly enough.
3040 # This seems to be due to autoconf 2.5x stupidity.
3041 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3043 target_configargs="$target_configargs ${tbaseargs}"
3045 # Passing a --with-cross-host argument lets the target libraries know
3046 # whether they are being built with a cross-compiler or being built
3047 # native. However, it would be better to use other mechanisms to make the
3048 # sorts of decisions they want to make on this basis. Please consider
3049 # this option to be deprecated. FIXME.
3050 if test x${is_cross_compiler} = xyes ; then
3051 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3052 fi
3054 # Special user-friendly check for native x86_64-linux build, if
3055 # multilib is not explicitly enabled.
3056 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3057 x86_64-*linux*:yes:$build:$build:)
3058 # Make sure we have a development environment that handles 32-bit
3059 dev64=no
3060 echo "int main () { return 0; }" > conftest.c
3061 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3062 if test $? = 0 ; then
3063 if test -s conftest || test -s conftest.exe ; then
3064 dev64=yes
3065 fi
3066 fi
3067 rm -f conftest*
3068 if test x${dev64} != xyes ; then
3069 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.])
3070 fi
3071 ;;
3072 esac
3074 # Default to --enable-multilib.
3075 if test x${enable_multilib} = x ; then
3076 target_configargs="--enable-multilib ${target_configargs}"
3077 fi
3079 # Pass --with-newlib if appropriate. Note that target_configdirs has
3080 # changed from the earlier setting of with_newlib.
3081 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3082 target_configargs="--with-newlib ${target_configargs}"
3083 fi
3085 # Different target subdirs use different values of certain variables
3086 # (notably CXX). Worse, multilibs use *lots* of different values.
3087 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3088 # it doesn't automatically accept command-line overrides of them.
3089 # This means it's not safe for target subdirs to share a cache file,
3090 # which is disgusting, but there you have it. Hopefully this can be
3091 # fixed in future. It's still worthwhile to use a cache file for each
3092 # directory. I think.
3094 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3095 # We need to pass --target, as newer autoconf's requires consistency
3096 # for target_alias and gcc doesn't manage it consistently.
3097 target_configargs="--cache-file=./config.cache ${target_configargs}"
3099 FLAGS_FOR_TARGET=
3100 case " $target_configdirs " in
3101 *" newlib "*)
3102 case " $target_configargs " in
3103 *" --with-newlib "*)
3104 case "$target" in
3105 *-cygwin*)
3106 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3107 ;;
3108 esac
3110 # If we're not building GCC, don't discard standard headers.
3111 if test -d ${srcdir}/gcc; then
3112 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3114 if test "${build}" != "${host}"; then
3115 # On Canadian crosses, CC_FOR_TARGET will have already been set
3116 # by `configure', so we won't have an opportunity to add -Bgcc/
3117 # to it. This is right: we don't want to search that directory
3118 # for binaries, but we want the header files in there, so add
3119 # them explicitly.
3120 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3122 # Someone might think of using the pre-installed headers on
3123 # Canadian crosses, in case the installed compiler is not fully
3124 # compatible with the compiler being built. In this case, it
3125 # would be better to flag an error than risking having
3126 # incompatible object files being constructed. We can't
3127 # guarantee that an error will be flagged, but let's hope the
3128 # compiler will do it, when presented with incompatible header
3129 # files.
3130 fi
3131 fi
3133 case "${target}-${is_cross_compiler}" in
3134 i[[3456789]]86-*-linux*-no)
3135 # Here host == target, so we don't need to build gcc,
3136 # so we don't want to discard standard headers.
3137 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3138 ;;
3139 *)
3140 # If we're building newlib, use its generic headers last, but search
3141 # for any libc-related directories first (so make it the last -B
3142 # switch).
3143 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3145 # If we're building libgloss, find the startup file, simulator library
3146 # and linker script.
3147 case " $target_configdirs " in
3148 *" libgloss "*)
3149 # Look for startup file, simulator library and maybe linker script.
3150 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3151 # Look for libnosys.a in case the target needs it.
3152 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3153 # Most targets have the linker script in the source directory.
3154 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3155 ;;
3156 esac
3157 ;;
3158 esac
3159 ;;
3160 esac
3161 ;;
3162 esac
3164 case "$target" in
3165 x86_64-*mingw* | *-w64-mingw*)
3166 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3167 # however, use a symlink named 'mingw' in ${prefix} .
3168 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3169 ;;
3170 *-mingw*)
3171 # MinGW can't be handled as Cygwin above since it does not use newlib.
3172 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3173 ;;
3174 esac
3176 # Allow the user to override the flags for
3177 # our build compiler if desired.
3178 if test x"${build}" = x"${host}" ; then
3179 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3180 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3181 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3182 fi
3184 # On Canadian crosses, we'll be searching the right directories for
3185 # the previously-installed cross compiler, so don't bother to add
3186 # flags for directories within the install tree of the compiler
3187 # being built; programs in there won't even run.
3188 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3189 # Search for pre-installed headers if nothing else fits.
3190 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3191 fi
3193 if test "x${use_gnu_ld}" = x &&
3194 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3195 # Arrange for us to find uninstalled linker scripts.
3196 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3197 fi
3199 # Search for other target-specific linker scripts and such.
3200 case "${target}" in
3201 mep*)
3202 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3203 ;;
3204 esac
3206 # Makefile fragments.
3207 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3208 do
3209 eval fragval=\$$frag
3210 if test $fragval != /dev/null; then
3211 eval $frag=${srcdir}/$fragval
3212 fi
3213 done
3214 AC_SUBST_FILE(host_makefile_frag)
3215 AC_SUBST_FILE(target_makefile_frag)
3216 AC_SUBST_FILE(alphaieee_frag)
3217 AC_SUBST_FILE(ospace_frag)
3219 # Miscellanea: directories, flags, etc.
3220 AC_SUBST(RPATH_ENVVAR)
3221 AC_SUBST(GCC_SHLIB_SUBDIR)
3222 AC_SUBST(tooldir)
3223 AC_SUBST(build_tooldir)
3224 AC_SUBST(CONFIGURE_GDB_TK)
3225 AC_SUBST(GDB_TK)
3226 AC_SUBST(INSTALL_GDB_TK)
3228 # Build module lists & subconfigure args.
3229 AC_SUBST(build_configargs)
3230 AC_SUBST(build_configdirs)
3232 # Host module lists & subconfigure args.
3233 AC_SUBST(host_configargs)
3234 AC_SUBST(configdirs)
3235 AC_SUBST(target_configdirs)
3237 # Target module lists & subconfigure args.
3238 AC_SUBST(target_configargs)
3241 # Build tools.
3242 AC_SUBST(AR_FOR_BUILD)
3243 AC_SUBST(AS_FOR_BUILD)
3244 AC_SUBST(CC_FOR_BUILD)
3245 AC_SUBST(CFLAGS_FOR_BUILD)
3246 AC_SUBST(CXXFLAGS_FOR_BUILD)
3247 AC_SUBST(CXX_FOR_BUILD)
3248 AC_SUBST(DLLTOOL_FOR_BUILD)
3249 AC_SUBST(GFORTRAN_FOR_BUILD)
3250 AC_SUBST(GOC_FOR_BUILD)
3251 AC_SUBST(LDFLAGS_FOR_BUILD)
3252 AC_SUBST(LD_FOR_BUILD)
3253 AC_SUBST(NM_FOR_BUILD)
3254 AC_SUBST(RANLIB_FOR_BUILD)
3255 AC_SUBST(WINDMC_FOR_BUILD)
3256 AC_SUBST(WINDRES_FOR_BUILD)
3258 # Generate default definitions for YACC, M4, LEX and other programs that run
3259 # on the build machine. These are used if the Makefile can't locate these
3260 # programs in objdir.
3261 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3263 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3264 case " $build_configdirs " in
3265 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3266 esac
3268 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3269 case " $build_configdirs " in
3270 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3271 esac
3273 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3274 case " $build_configdirs " in
3275 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3276 esac
3278 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3279 case " $build_configdirs " in
3280 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3281 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3282 esac
3284 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3285 case " $build_configdirs " in
3286 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3287 esac
3289 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3290 case " $build_configdirs " in
3291 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3292 *)
3293 changequote(,)
3294 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3295 # higher, else we use the "missing" dummy.
3296 if ${MAKEINFO} --version \
3297 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3298 :
3299 else
3300 MAKEINFO="$MISSING makeinfo"
3301 fi
3302 ;;
3303 changequote([,])
3304 esac
3306 # FIXME: expect and dejagnu may become build tools?
3308 AC_CHECK_PROGS(EXPECT, expect, expect)
3309 case " $configdirs " in
3310 *" expect "*)
3311 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3312 ;;
3313 esac
3315 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3316 case " $configdirs " in
3317 *" dejagnu "*)
3318 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3319 ;;
3320 esac
3323 # Host tools.
3324 NCN_STRICT_CHECK_TOOLS(AR, ar)
3325 NCN_STRICT_CHECK_TOOLS(AS, as)
3326 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3327 NCN_STRICT_CHECK_TOOLS(LD, ld)
3328 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3329 NCN_STRICT_CHECK_TOOLS(NM, nm)
3330 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3331 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3332 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3333 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3334 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3335 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3336 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3337 AC_SUBST(CC)
3338 AC_SUBST(CXX)
3339 AC_SUBST(CFLAGS)
3340 AC_SUBST(CXXFLAGS)
3342 # Target tools.
3343 AC_ARG_WITH([build-time-tools],
3344 [AS_HELP_STRING([--with-build-time-tools=PATH],
3345 [use given path to find target tools during the build])],
3346 [case x"$withval" in
3347 x/*) ;;
3348 *)
3349 with_build_time_tools=
3350 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3351 ;;
3352 esac],
3353 [with_build_time_tools=])
3355 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3356 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3357 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3358 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3359 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3361 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3362 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3363 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3364 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3365 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3366 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3367 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3368 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3369 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3370 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3371 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3372 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3373 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3375 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3377 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3378 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3379 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3380 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3381 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3382 [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],
3383 c++)
3384 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3385 [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],
3386 c++)
3387 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3388 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3389 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3390 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3391 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3392 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3393 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3394 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3395 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3396 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3397 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3398 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3399 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3400 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3401 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3402 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3404 AC_SUBST(FLAGS_FOR_TARGET)
3405 AC_SUBST(RAW_CXX_FOR_TARGET)
3407 # Certain tools may need extra flags.
3408 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3409 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3410 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3412 # When building target libraries, except in a Canadian cross, we use
3413 # the same toolchain as the compiler we just built.
3414 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3415 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3416 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3417 if test $host = $build; then
3418 case " $configdirs " in
3419 *" gcc "*)
3420 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3421 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3422 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3423 ;;
3424 esac
3425 fi
3427 AC_SUBST(COMPILER_AS_FOR_TARGET)
3428 AC_SUBST(COMPILER_LD_FOR_TARGET)
3429 AC_SUBST(COMPILER_NM_FOR_TARGET)
3431 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3432 AC_ARG_ENABLE(maintainer-mode,
3433 [AS_HELP_STRING([--enable-maintainer-mode],
3434 [enable make rules and dependencies not useful
3435 (and sometimes confusing) to the casual installer])],
3436 USE_MAINTAINER_MODE=$enableval,
3437 USE_MAINTAINER_MODE=no)
3438 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3439 AC_SUBST(MAINTAINER_MODE_TRUE)
3440 AC_SUBST(MAINTAINER_MODE_FALSE)
3441 if test "$USE_MAINTAINER_MODE" = yes; then
3442 MAINTAINER_MODE_TRUE=
3443 MAINTAINER_MODE_FALSE='#'
3444 else
3445 MAINTAINER_MODE_TRUE='#'
3446 MAINTAINER_MODE_FALSE=
3447 fi
3448 MAINT=$MAINTAINER_MODE_TRUE
3449 AC_SUBST(MAINT)dnl
3451 # ---------------------
3452 # GCC bootstrap support
3453 # ---------------------
3455 # Stage specific cflags for build.
3456 stage1_cflags="-g"
3457 case $build in
3458 vax-*-*)
3459 case ${GCC} in
3460 yes) stage1_cflags="-g -Wa,-J" ;;
3461 *) stage1_cflags="-g -J" ;;
3462 esac ;;
3463 esac
3465 AC_SUBST(stage1_cflags)
3467 # Enable --enable-checking in stage1 of the compiler.
3468 AC_ARG_ENABLE(stage1-checking,
3469 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3470 [choose additional checking for stage1 of the compiler])],
3471 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3472 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3473 # For --disable-checking or implicit --enable-checking=release, avoid
3474 # setting --enable-checking=gc in the default stage1 checking for LTO
3475 # bootstraps. See PR62077.
3476 case $BUILD_CONFIG in
3477 *lto*)
3478 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3479 *)
3480 stage1_checking=--enable-checking=yes,types;;
3481 esac
3482 if test "x$enable_checking" = x && \
3483 test -d ${srcdir}/gcc && \
3484 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3485 stage1_checking=--enable-checking=yes,types,extra
3486 fi
3487 else
3488 stage1_checking=--enable-checking=$enable_checking,types
3489 fi])
3490 AC_SUBST(stage1_checking)
3492 # Enable -Werror in bootstrap stage2 and later.
3493 AC_ARG_ENABLE(werror,
3494 [AS_HELP_STRING([--enable-werror],
3495 [enable -Werror in bootstrap stage2 and later])],
3496 [
3497 case ${enable_werror} in
3498 yes) stage2_werror_flag="--enable-werror-always" ;;
3499 *) stage2_werror_flag="" ;;
3500 esac
3501 ],
3502 [
3503 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3504 case $BUILD_CONFIG in
3505 bootstrap-debug)
3506 stage2_werror_flag="--enable-werror-always" ;;
3507 "")
3508 stage2_werror_flag="--enable-werror-always" ;;
3509 esac
3510 fi
3511 ])
3513 AC_SUBST(stage2_werror_flag)
3515 # Specify what files to not compare during bootstrap.
3517 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3518 case "$target" in
3519 hppa*64*-*-hpux*) ;;
3520 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
3521 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3522 esac
3523 AC_SUBST(compare_exclusions)
3525 AC_CONFIG_FILES([Makefile],
3526 [sed "$extrasub_build" Makefile |
3527 sed "$extrasub_host" |
3528 sed "$extrasub_target" > mf$$
3529 mv -f mf$$ Makefile],
3530 [extrasub_build="$extrasub_build"
3531 extrasub_host="$extrasub_host"
3532 extrasub_target="$extrasub_target"])
3533 AC_OUTPUT