| blob | dcc89fbdde1ba191dca82fb2519148f3c1281d23 |
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, 2019 Free Software Foundation, Inc.
4 #
5 # This file is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program; see the file COPYING3. If not see
17 # <http://www.gnu.org/licenses/>.
19 ##############################################################################
20 ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
22 m4_include(config/acx.m4)
23 m4_include(config/override.m4)
24 m4_include(config/proginstall.m4)
25 m4_include(config/elf.m4)
26 m4_include([libtool.m4])
27 m4_include([ltoptions.m4])
28 m4_include([ltsugar.m4])
29 m4_include([ltversion.m4])
30 m4_include([lt~obsolete.m4])
31 m4_include([config/isl.m4])
33 AC_INIT(move-if-change)
34 AC_DISABLE_OPTION_CHECKING
36 progname=$0
37 # if PWD already has a value, it is probably wrong.
38 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
40 # Export original configure arguments for use by sub-configures.
41 # Quote arguments with shell meta charatcers.
42 TOPLEVEL_CONFIGURE_ARGUMENTS=
43 set -- "$progname" "$@"
44 for ac_arg
45 do
46 case "$ac_arg" in
47 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
48 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
49 # if the argument is of the form -foo=baz, quote the baz part only
50 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
51 *) ;;
52 esac
53 # Add the quoted argument to the list.
54 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
55 done
56 if test "$silent" = yes; then
57 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
58 fi
59 # Remove the initial space we just introduced and, as these will be
60 # expanded by make, quote '$'.
61 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
62 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
64 # Find the build, host, and target systems.
65 ACX_NONCANONICAL_BUILD
66 ACX_NONCANONICAL_HOST
67 ACX_NONCANONICAL_TARGET
69 dnl Autoconf 2.5x and later will set a default program prefix if
70 dnl --target was used, even if it was the same as --host. Disable
71 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
72 dnl to take effect.
73 test "$host_noncanonical" = "$target_noncanonical" &&
74 test "$program_prefix$program_suffix$program_transform_name" = \
75 NONENONEs,x,x, &&
76 program_transform_name=s,y,y,
78 AC_CANONICAL_SYSTEM
79 AC_ARG_PROGRAM
81 m4_pattern_allow([^AS_FOR_TARGET$])dnl
82 m4_pattern_allow([^AS_FOR_BUILD$])dnl
84 # Get 'install' or 'install-sh' and its variants.
85 AC_PROG_INSTALL
86 ACX_PROG_LN
87 AC_PROG_LN_S
88 AC_PROG_SED
89 AC_PROG_AWK
91 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
93 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
94 # a relative path.
95 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
96 INSTALL="${srcpwd}/install-sh -c"
97 fi
99 # Set srcdir to "." if that's what it is.
100 # This is important for multilib support.
101 pwd=`${PWDCMD-pwd}`
102 if test "${pwd}" = "${srcpwd}" ; then
103 srcdir=.
104 fi
106 topsrcdir=$srcpwd
108 extra_host_args=
110 ### To add a new directory to the tree, first choose whether it is a target
111 ### or a host dependent tool. Then put it into the appropriate list
112 ### (library or tools, host or target), doing a dependency sort.
114 # Subdirs will be configured in the order listed in build_configdirs,
115 # configdirs, or target_configdirs; see the serialization section below.
117 # Dependency sorting is only needed when *configuration* must be done in
118 # a particular order. In all cases a dependency should be specified in
119 # the Makefile, whether or not it's implicitly specified here.
121 # Double entries in build_configdirs, configdirs, or target_configdirs may
122 # cause circular dependencies and break everything horribly.
124 # these library is used by various programs built for the build
125 # environment
126 #
127 build_libs="build-libiberty build-libcpp"
129 # these tools are built for the build environment
130 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
132 # these libraries are used by various programs built for the host environment
133 #f
134 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv libctf"
136 # these tools are built for the host environment
137 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
138 # know that we are building the simulator.
139 # binutils, gas and ld appear in that order because it makes sense to run
140 # "make check" in that particular order.
141 # If --enable-gold is used, "gold" may replace "ld".
142 host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools"
144 # these libraries are built for the target environment, and are built after
145 # the host libraries and the host tools (which may be a cross compiler)
146 # Note that libiberty is not a target library.
147 target_libraries="target-libgcc \
148 target-libbacktrace \
149 target-libgloss \
150 target-newlib \
151 target-libgomp \
152 target-liboffloadmic \
153 target-libhsail-rt \
154 target-libatomic \
155 target-libitm \
156 target-libstdc++-v3 \
157 target-libsanitizer \
158 target-libvtv \
159 target-libssp \
160 target-libquadmath \
161 target-libgfortran \
162 target-libffi \
163 target-libobjc \
164 target-libada \
165 target-libgo \
166 target-libphobos \
167 target-zlib"
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 # Disable libhsail-rt on unsupported systems.
605 if test -d ${srcdir}/libhsail-rt; then
606 if test x$enable_libhsail_rt = x; then
607 AC_MSG_CHECKING([for libhsail-rt support])
608 if (srcdir=${srcdir}/libhsail-rt; \
609 . ${srcdir}/configure.tgt; \
610 test -n "$UNSUPPORTED")
611 then
612 AC_MSG_RESULT([no])
613 unsupported_languages="$unsupported_languages brig"
614 # This implicitly disables also target-libhsail-rt as it won't
615 # get added to the build without BRIG FE.
616 else
617 AC_MSG_RESULT([yes])
618 fi
619 fi
620 fi
623 # Disable libquadmath for some systems.
624 case "${target}" in
625 avr-*-*)
626 noconfigdirs="$noconfigdirs target-libquadmath"
627 ;;
628 # libquadmath is unused on AIX and libquadmath build process use of
629 # LD_LIBRARY_PATH can break AIX bootstrap.
630 powerpc-*-aix* | rs6000-*-aix*)
631 noconfigdirs="$noconfigdirs target-libquadmath"
632 ;;
633 esac
635 # Disable libssp for some systems.
636 case "${target}" in
637 avr-*-*)
638 # No hosted I/O support.
639 noconfigdirs="$noconfigdirs target-libssp"
640 ;;
641 powerpc-*-aix* | rs6000-*-aix*)
642 noconfigdirs="$noconfigdirs target-libssp"
643 ;;
644 pru-*-*)
645 # No hosted I/O support.
646 noconfigdirs="$noconfigdirs target-libssp"
647 ;;
648 rl78-*-*)
649 # libssp uses a misaligned load to trigger a fault, but the RL78
650 # doesn't fault for those - instead, it gives a build-time error
651 # for explicit misaligned loads.
652 noconfigdirs="$noconfigdirs target-libssp"
653 ;;
654 visium-*-*)
655 # No hosted I/O support.
656 noconfigdirs="$noconfigdirs target-libssp"
657 ;;
658 esac
660 # Disable libstdc++-v3 for some systems.
661 # Allow user to override this if they pass --enable-libstdc++-v3
662 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
663 case "${target}" in
664 *-*-vxworks*)
665 # VxWorks uses the Dinkumware C++ library.
666 noconfigdirs="$noconfigdirs target-libstdc++-v3"
667 ;;
668 arm*-wince-pe*)
669 # the C++ libraries don't build on top of CE's C libraries
670 noconfigdirs="$noconfigdirs target-libstdc++-v3"
671 ;;
672 avr-*-*)
673 noconfigdirs="$noconfigdirs target-libstdc++-v3"
674 ;;
675 ft32-*-*)
676 noconfigdirs="$noconfigdirs target-libstdc++-v3"
677 ;;
678 esac
679 fi
681 # Disable D on systems where it is known to not work.
682 # For testing, you can override this with --enable-languages=d.
683 case ,${enable_languages}, in
684 *,d,*)
685 ;;
686 *)
687 case "${target}" in
688 *-*-darwin*)
689 unsupported_languages="$unsupported_languages d"
690 ;;
691 esac
692 ;;
693 esac
695 # Disable libphobos on unsupported systems.
696 # For testing, you can override this with --enable-libphobos.
697 if test -d ${srcdir}/libphobos; then
698 if test x$enable_libphobos = x; then
699 AC_MSG_CHECKING([for libphobos support])
700 if (srcdir=${srcdir}/libphobos; \
701 . ${srcdir}/configure.tgt; \
702 test "$LIBPHOBOS_SUPPORTED" != "yes")
703 then
704 AC_MSG_RESULT([no])
705 noconfigdirs="$noconfigdirs target-libphobos"
706 else
707 AC_MSG_RESULT([yes])
708 fi
709 fi
710 fi
712 # Disable Fortran for some systems.
713 case "${target}" in
714 mmix-*-*)
715 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
716 unsupported_languages="$unsupported_languages fortran"
717 ;;
718 esac
720 # Disable libffi for some systems.
721 case "${target}" in
722 powerpc-*-darwin*)
723 ;;
724 i[[3456789]]86-*-darwin*)
725 ;;
726 x86_64-*-darwin[[912]]*)
727 ;;
728 *-*-darwin*)
729 noconfigdirs="$noconfigdirs target-libffi"
730 ;;
731 *-*-netware*)
732 noconfigdirs="$noconfigdirs target-libffi"
733 ;;
734 *-*-phoenix*)
735 noconfigdirs="$noconfigdirs target-libffi"
736 ;;
737 *-*-rtems*)
738 noconfigdirs="$noconfigdirs target-libffi"
739 ;;
740 *-*-tpf*)
741 noconfigdirs="$noconfigdirs target-libffi"
742 ;;
743 *-*-uclinux*)
744 noconfigdirs="$noconfigdirs target-libffi"
745 ;;
746 *-*-vxworks*)
747 noconfigdirs="$noconfigdirs target-libffi"
748 ;;
749 aarch64*-*-freebsd*)
750 noconfigdirs="$noconfigdirs target-libffi"
751 ;;
752 alpha*-*-*vms*)
753 noconfigdirs="$noconfigdirs target-libffi"
754 ;;
755 arm*-*-freebsd*)
756 noconfigdirs="$noconfigdirs target-libffi"
757 ;;
758 arm-wince-pe)
759 noconfigdirs="$noconfigdirs target-libffi"
760 ;;
761 arm*-*-symbianelf*)
762 noconfigdirs="$noconfigdirs target-libffi"
763 ;;
764 cris-*-* | crisv32-*-*)
765 case "${target}" in
766 *-*-linux*)
767 ;;
768 *) # See PR46792 regarding target-libffi.
769 noconfigdirs="$noconfigdirs target-libffi";;
770 esac
771 ;;
772 hppa*64*-*-hpux*)
773 noconfigdirs="$noconfigdirs target-libffi"
774 ;;
775 hppa*-hp-hpux11*)
776 ;;
777 hppa*-*-hpux*)
778 noconfigdirs="$noconfigdirs target-libffi"
779 ;;
780 ia64*-*-*vms*)
781 noconfigdirs="$noconfigdirs target-libffi"
782 ;;
783 i[[3456789]]86-w64-mingw*)
784 noconfigdirs="$noconfigdirs target-libffi"
785 ;;
786 i[[3456789]]86-*-mingw*)
787 noconfigdirs="$noconfigdirs target-libffi"
788 ;;
789 x86_64-*-mingw*)
790 noconfigdirs="$noconfigdirs target-libffi"
791 ;;
792 mmix-*-*)
793 noconfigdirs="$noconfigdirs target-libffi"
794 ;;
795 powerpc-*-aix*)
796 ;;
797 rs6000-*-aix*)
798 ;;
799 ft32-*-*)
800 noconfigdirs="$noconfigdirs target-libffi"
801 ;;
802 *-*-lynxos*)
803 noconfigdirs="$noconfigdirs target-libffi"
804 ;;
805 esac
807 # Disable the go frontend on systems where it is known to not work. Please keep
808 # this in sync with contrib/config-list.mk.
809 case "${target}" in
810 *-*-darwin* | *-*-cygwin* | *-*-mingw*)
811 unsupported_languages="$unsupported_languages go"
812 ;;
813 esac
815 # Disable libgo for some systems where it is known to not work.
816 # For testing, you can easily override this with --enable-libgo.
817 if test x$enable_libgo = x; then
818 case "${target}" in
819 *-*-darwin*)
820 # PR 46986
821 noconfigdirs="$noconfigdirs target-libgo"
822 ;;
823 *-*-cygwin* | *-*-mingw*)
824 noconfigdirs="$noconfigdirs target-libgo"
825 ;;
826 esac
827 fi
829 # Default libgloss CPU subdirectory.
830 libgloss_dir="$target_cpu"
832 case "${target}" in
833 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
834 libgloss_dir=wince
835 ;;
836 aarch64*-*-* )
837 libgloss_dir=aarch64
838 ;;
839 arm*-*-*)
840 libgloss_dir=arm
841 ;;
842 cris-*-* | crisv32-*-*)
843 libgloss_dir=cris
844 ;;
845 hppa*-*-*)
846 libgloss_dir=pa
847 ;;
848 i[[3456789]]86-*-*)
849 libgloss_dir=i386
850 ;;
851 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
852 libgloss_dir=m68hc11
853 ;;
854 m68*-*-* | fido-*-*)
855 libgloss_dir=m68k
856 ;;
857 mips*-*-*)
858 libgloss_dir=mips
859 ;;
860 powerpc*-*-*)
861 libgloss_dir=rs6000
862 ;;
863 pru-*-*)
864 libgloss_dir=pru
865 ;;
866 sparc*-*-*)
867 libgloss_dir=sparc
868 ;;
869 esac
871 # Disable newlib and libgloss for various target OSes.
872 case "${target}" in
873 alpha*-dec-osf*)
874 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
875 ;;
876 i[[3456789]]86-*-linux*)
877 # This section makes it possible to build newlib natively on linux.
878 # If we are using a cross compiler then don't configure newlib.
879 if test x${is_cross_compiler} != xno ; then
880 noconfigdirs="$noconfigdirs target-newlib"
881 fi
882 noconfigdirs="$noconfigdirs target-libgloss"
883 # If we are not using a cross compiler, do configure newlib.
884 # Note however, that newlib will only be configured in this situation
885 # if the --with-newlib option has been given, because otherwise
886 # 'target-newlib' will appear in skipdirs.
887 ;;
888 i[[3456789]]86-*-rdos*)
889 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
890 ;;
891 sh*-*-pe|mips*-*-pe|arm-wince-pe)
892 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
893 ;;
894 sparc-*-sunos4*)
895 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
896 ;;
897 *-*-aix*)
898 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
899 ;;
900 *-*-beos*)
901 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
902 ;;
903 *-*-chorusos)
904 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
905 ;;
906 *-*-dragonfly*)
907 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
908 ;;
909 *-*-freebsd*)
910 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
911 ;;
912 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
913 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
914 ;;
915 *-*-lynxos*)
916 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
917 ;;
918 *-*-mingw*)
919 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
920 ;;
921 *-*-netbsd*)
922 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
923 ;;
924 *-*-netware*)
925 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
926 ;;
927 *-*-tpf*)
928 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
929 ;;
930 *-*-uclinux*)
931 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
932 ;;
933 *-*-vxworks*)
934 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
935 ;;
936 esac
938 case "${target}" in
939 *-*-chorusos)
940 ;;
941 aarch64-*-darwin*)
942 noconfigdirs="$noconfigdirs ld gas gdb gprof"
943 noconfigdirs="$noconfigdirs sim target-rda"
944 ;;
945 amdgcn*-*-*)
946 ;;
947 arm-*-darwin*)
948 noconfigdirs="$noconfigdirs ld gas gdb gprof"
949 noconfigdirs="$noconfigdirs sim target-rda"
950 ;;
951 powerpc-*-darwin*)
952 noconfigdirs="$noconfigdirs ld gas gdb gprof"
953 noconfigdirs="$noconfigdirs sim target-rda"
954 ;;
955 i[[3456789]]86-*-darwin*)
956 noconfigdirs="$noconfigdirs ld gprof"
957 noconfigdirs="$noconfigdirs sim target-rda"
958 ;;
959 x86_64-*-darwin[[912]]*)
960 noconfigdirs="$noconfigdirs ld gas gprof"
961 noconfigdirs="$noconfigdirs sim target-rda"
962 ;;
963 *-*-darwin*)
964 noconfigdirs="$noconfigdirs ld gas gdb gprof"
965 noconfigdirs="$noconfigdirs sim target-rda"
966 ;;
967 *-*-dragonfly*)
968 ;;
969 *-*-freebsd*)
970 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
971 && test -f /usr/local/include/gmp.h; then
972 with_gmp=/usr/local
973 fi
974 ;;
975 *-*-kaos*)
976 # Remove unsupported stuff on all kaOS configurations.
977 noconfigdirs="$noconfigdirs target-libgloss"
978 ;;
979 *-*-netbsd*)
980 ;;
981 *-*-netware*)
982 ;;
983 *-*-phoenix*)
984 noconfigdirs="$noconfigdirs target-libgloss"
985 ;;
986 *-*-rtems*)
987 noconfigdirs="$noconfigdirs target-libgloss"
988 ;;
989 # The tpf target doesn't support gdb yet.
990 *-*-tpf*)
991 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
992 ;;
993 *-*-uclinux*)
994 noconfigdirs="$noconfigdirs target-rda"
995 ;;
996 *-*-vxworks*)
997 ;;
998 alpha*-dec-osf*)
999 # ld works, but does not support shared libraries.
1000 # gas doesn't generate exception information.
1001 noconfigdirs="$noconfigdirs gas ld"
1002 ;;
1003 alpha*-*-*vms*)
1004 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1005 ;;
1006 alpha*-*-*)
1007 # newlib is not 64 bit ready
1008 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1009 ;;
1010 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1011 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1012 ;;
1013 arc*-*-*)
1014 noconfigdirs="$noconfigdirs sim"
1015 ;;
1016 arm-*-pe*)
1017 noconfigdirs="$noconfigdirs target-libgloss"
1018 ;;
1019 arm-*-riscix*)
1020 noconfigdirs="$noconfigdirs ld target-libgloss"
1021 ;;
1022 avr-*-*)
1023 if test x${with_avrlibc} != xno; then
1024 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1025 fi
1026 ;;
1027 c4x-*-* | tic4x-*-*)
1028 noconfigdirs="$noconfigdirs target-libgloss"
1029 ;;
1030 tic54x-*-*)
1031 noconfigdirs="$noconfigdirs target-libgloss gdb"
1032 ;;
1033 d10v-*-*)
1034 noconfigdirs="$noconfigdirs target-libgloss"
1035 ;;
1036 d30v-*-*)
1037 noconfigdirs="$noconfigdirs gdb"
1038 ;;
1039 fr30-*-elf*)
1040 noconfigdirs="$noconfigdirs gdb"
1041 ;;
1042 ft32-*-*)
1043 noconfigdirs="$noconfigdirs target-rda gprof"
1044 ;;
1045 moxie-*-*)
1046 noconfigdirs="$noconfigdirs"
1047 ;;
1048 h8300*-*-*)
1049 noconfigdirs="$noconfigdirs target-libgloss"
1050 ;;
1051 h8500-*-*)
1052 noconfigdirs="$noconfigdirs target-libgloss"
1053 ;;
1054 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1055 ;;
1056 hppa*64*-*-hpux*)
1057 noconfigdirs="$noconfigdirs gdb"
1058 ;;
1059 hppa*-*-hpux11*)
1060 noconfigdirs="$noconfigdirs gdb ld"
1061 ;;
1062 hppa*64*-*-linux*)
1063 ;;
1064 hppa*-*-linux*)
1065 ;;
1066 hppa*-*-*elf* | \
1067 hppa*-*-lites* | \
1068 hppa*-*-openbsd* | \
1069 hppa*64*-*-*)
1070 ;;
1071 hppa*-*-pro*)
1072 ;;
1073 hppa*-*-*)
1074 noconfigdirs="$noconfigdirs ld"
1075 ;;
1076 i960-*-*)
1077 noconfigdirs="$noconfigdirs gdb"
1078 ;;
1079 ia64*-*-elf*)
1080 # No gdb support yet.
1081 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1082 ;;
1083 ia64*-**-hpux*)
1084 # No ld support yet.
1085 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1086 ;;
1087 ia64*-*-*vms*)
1088 # No ld support yet.
1089 noconfigdirs="$noconfigdirs libgui itcl ld"
1090 ;;
1091 i[[3456789]]86-w64-mingw*)
1092 ;;
1093 i[[3456789]]86-*-mingw*)
1094 target_configdirs="$target_configdirs target-winsup"
1095 ;;
1096 *-*-cygwin*)
1097 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1098 noconfigdirs="$noconfigdirs target-libgloss"
1099 # always build newlib if winsup directory is present.
1100 if test -d "$srcdir/winsup/cygwin"; then
1101 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1102 elif test -d "$srcdir/newlib"; then
1103 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1104 fi
1105 ;;
1106 i[[3456789]]86-*-pe)
1107 noconfigdirs="$noconfigdirs target-libgloss"
1108 ;;
1109 i[[3456789]]86-*-sco3.2v5*)
1110 # The linker does not yet know about weak symbols in COFF,
1111 # and is not configured to handle mixed ELF and COFF.
1112 noconfigdirs="$noconfigdirs ld target-libgloss"
1113 ;;
1114 i[[3456789]]86-*-sco*)
1115 noconfigdirs="$noconfigdirs gprof target-libgloss"
1116 ;;
1117 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1118 noconfigdirs="$noconfigdirs target-libgloss"
1119 ;;
1120 i[[3456789]]86-*-sysv4*)
1121 noconfigdirs="$noconfigdirs target-libgloss"
1122 ;;
1123 i[[3456789]]86-*-beos*)
1124 noconfigdirs="$noconfigdirs gdb"
1125 ;;
1126 i[[3456789]]86-*-rdos*)
1127 noconfigdirs="$noconfigdirs gdb"
1128 ;;
1129 mmix-*-*)
1130 noconfigdirs="$noconfigdirs gdb"
1131 ;;
1132 mt-*-*)
1133 noconfigdirs="$noconfigdirs sim"
1134 ;;
1135 nfp-*-*)
1136 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1137 noconfigdirs="$noconfigdirs $target_libraries"
1138 ;;
1139 powerpc-*-aix*)
1140 # copied from rs6000-*-* entry
1141 noconfigdirs="$noconfigdirs gprof"
1142 ;;
1143 powerpc*-*-winnt* | powerpc*-*-pe*)
1144 target_configdirs="$target_configdirs target-winsup"
1145 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1146 # always build newlib.
1147 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1148 ;;
1149 # This is temporary until we can link against shared libraries
1150 powerpcle-*-solaris*)
1151 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1152 ;;
1153 powerpc-*-beos*)
1154 noconfigdirs="$noconfigdirs gdb"
1155 ;;
1156 rs6000-*-lynxos*)
1157 noconfigdirs="$noconfigdirs gprof"
1158 ;;
1159 rs6000-*-aix*)
1160 noconfigdirs="$noconfigdirs gprof"
1161 ;;
1162 rs6000-*-*)
1163 noconfigdirs="$noconfigdirs gprof"
1164 ;;
1165 m68k-apollo-*)
1166 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1167 ;;
1168 microblaze*)
1169 noconfigdirs="$noconfigdirs gprof"
1170 ;;
1171 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1172 if test x$with_newlib = xyes; then
1173 noconfigdirs="$noconfigdirs gprof"
1174 fi
1175 ;;
1176 mips*-*-irix5*)
1177 noconfigdirs="$noconfigdirs gprof target-libgloss"
1178 ;;
1179 mips*-*-irix6*)
1180 noconfigdirs="$noconfigdirs gprof target-libgloss"
1181 ;;
1182 mips*-*-bsd*)
1183 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1184 ;;
1185 mips*-*-linux*)
1186 ;;
1187 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1188 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1189 noconfigdirs="$noconfigdirs ld gas gprof"
1190 ;;
1191 mips*-*-*)
1192 noconfigdirs="$noconfigdirs gprof"
1193 ;;
1194 nvptx*-*-*)
1195 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1196 ;;
1197 sh-*-*)
1198 case "${target}" in
1199 sh*-*-elf)
1200 ;;
1201 *)
1202 noconfigdirs="$noconfigdirs target-libgloss" ;;
1203 esac
1204 ;;
1205 sparc-*-sunos4*)
1206 if test x${is_cross_compiler} = xno ; then
1207 use_gnu_ld=no
1208 fi
1209 ;;
1210 tic6x-*-*)
1211 noconfigdirs="$noconfigdirs sim"
1212 ;;
1213 tilepro*-*-* | tilegx*-*-*)
1214 noconfigdirs="$noconfigdirs sim"
1215 ;;
1216 v810-*-*)
1217 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1218 ;;
1219 vax-*-*)
1220 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1221 ;;
1222 wasm32-*-*)
1223 noconfigdirs="$noconfigdirs ld"
1224 ;;
1225 esac
1227 # If we aren't building newlib, then don't build libgloss, since libgloss
1228 # depends upon some newlib header files.
1229 case "${noconfigdirs}" in
1230 *target-libgloss*) ;;
1231 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1232 esac
1234 # Work in distributions that contain no compiler tools, like Autoconf.
1235 host_makefile_frag=/dev/null
1236 if test -d ${srcdir}/config ; then
1237 case "${host}" in
1238 i[[3456789]]86-*-msdosdjgpp*)
1239 host_makefile_frag="config/mh-djgpp"
1240 ;;
1241 *-cygwin*)
1242 ACX_CHECK_CYGWIN_CAT_WORKS
1243 host_makefile_frag="config/mh-cygwin"
1244 ;;
1245 *-mingw*)
1246 host_makefile_frag="config/mh-mingw"
1247 ;;
1248 alpha*-linux*)
1249 host_makefile_frag="config/mh-alpha-linux"
1250 ;;
1251 hppa*-hp-hpux10*)
1252 host_makefile_frag="config/mh-pa-hpux10"
1253 ;;
1254 hppa*-hp-hpux*)
1255 host_makefile_frag="config/mh-pa"
1256 ;;
1257 hppa*-*)
1258 host_makefile_frag="config/mh-pa"
1259 ;;
1260 *-*-darwin*)
1261 host_makefile_frag="config/mh-darwin"
1262 ;;
1263 powerpc-*-aix*)
1264 host_makefile_frag="config/mh-ppc-aix"
1265 ;;
1266 rs6000-*-aix*)
1267 host_makefile_frag="config/mh-ppc-aix"
1268 ;;
1269 esac
1270 fi
1272 if test "${build}" != "${host}" ; then
1273 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1274 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1275 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1276 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1277 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1278 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1279 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1280 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1281 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1282 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1283 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1284 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1285 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1286 else
1287 AR_FOR_BUILD="\$(AR)"
1288 AS_FOR_BUILD="\$(AS)"
1289 CC_FOR_BUILD="\$(CC)"
1290 CXX_FOR_BUILD="\$(CXX)"
1291 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1292 GOC_FOR_BUILD="\$(GOC)"
1293 GDC_FOR_BUILD="\$(GDC)"
1294 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1295 LD_FOR_BUILD="\$(LD)"
1296 NM_FOR_BUILD="\$(NM)"
1297 RANLIB_FOR_BUILD="\$(RANLIB)"
1298 WINDRES_FOR_BUILD="\$(WINDRES)"
1299 WINDMC_FOR_BUILD="\$(WINDMC)"
1300 fi
1302 AC_PROG_CC
1303 AC_PROG_CXX
1305 # We must set the default linker to the linker used by gcc for the correct
1306 # operation of libtool. If LD is not defined and we are using gcc, try to
1307 # set the LD default to the ld used by gcc.
1308 if test -z "$LD"; then
1309 if test "$GCC" = yes; then
1310 case $build in
1311 *-*-mingw*)
1312 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1313 *)
1314 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1315 esac
1316 case $gcc_prog_ld in
1317 # Accept absolute paths.
1318 [[\\/]* | [A-Za-z]:[\\/]*)]
1319 LD="$gcc_prog_ld" ;;
1320 esac
1321 fi
1322 fi
1324 # Check whether -static-libstdc++ -static-libgcc is supported.
1325 have_static_libs=no
1326 if test "$GCC" = yes; then
1327 saved_LDFLAGS="$LDFLAGS"
1329 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1330 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1331 AC_LANG_PUSH(C++)
1332 AC_LINK_IFELSE([AC_LANG_SOURCE([
1333 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1334 #error -static-libstdc++ not implemented
1335 #endif
1336 int main() {}])],
1337 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1338 [AC_MSG_RESULT([no])])
1339 AC_LANG_POP(C++)
1341 LDFLAGS="$saved_LDFLAGS"
1342 fi
1344 ACX_PROG_GNAT
1345 ACX_PROG_CMP_IGNORE_INITIAL
1347 AC_ARG_ENABLE([bootstrap],
1348 [AS_HELP_STRING([--enable-bootstrap],
1349 [enable bootstrapping @<:@yes if native build@:>@])],,
1350 enable_bootstrap=default)
1352 # Issue errors and warnings for invalid/strange bootstrap combinations.
1353 if test -r $srcdir/gcc/configure; then
1354 have_compiler=yes
1355 else
1356 have_compiler=no
1357 fi
1359 case "$have_compiler:$host:$target:$enable_bootstrap" in
1360 *:*:*:no) ;;
1362 # Default behavior. Enable bootstrap if we have a compiler
1363 # and we are in a native configuration.
1364 yes:$build:$build:default)
1365 enable_bootstrap=yes ;;
1367 *:*:*:default)
1368 enable_bootstrap=no ;;
1370 # We have a compiler and we are in a native configuration, bootstrap is ok
1371 yes:$build:$build:yes)
1372 ;;
1374 # Other configurations, but we have a compiler. Assume the user knows
1375 # what he's doing.
1376 yes:*:*:yes)
1377 AC_MSG_WARN([trying to bootstrap a cross compiler])
1378 ;;
1380 # No compiler: if they passed --enable-bootstrap explicitly, fail
1381 no:*:*:yes)
1382 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1384 # Fail if wrong command line
1385 *)
1386 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1387 ;;
1388 esac
1390 # When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1391 # C++98 compiler can still start the bootstrap.
1392 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1393 CXX="$CXX -std=gnu++98"
1394 fi
1396 # Used for setting $lt_cv_objdir
1397 _LT_CHECK_OBJDIR
1399 # Check for GMP, MPFR and MPC
1400 gmplibs="-lmpc -lmpfr -lgmp"
1401 gmpinc=
1402 have_gmp=no
1404 # Specify a location for mpc
1405 # check for this first so it ends up on the link line before mpfr.
1406 AC_ARG_WITH(mpc,
1407 [AS_HELP_STRING([--with-mpc=PATH],
1408 [specify prefix directory for installed MPC package.
1409 Equivalent to --with-mpc-include=PATH/include
1410 plus --with-mpc-lib=PATH/lib])])
1411 AC_ARG_WITH(mpc-include,
1412 [AS_HELP_STRING([--with-mpc-include=PATH],
1413 [specify directory for installed MPC include files])])
1414 AC_ARG_WITH(mpc-lib,
1415 [AS_HELP_STRING([--with-mpc-lib=PATH],
1416 [specify directory for the installed MPC library])])
1418 if test "x$with_mpc" != x; then
1419 gmplibs="-L$with_mpc/lib $gmplibs"
1420 gmpinc="-I$with_mpc/include $gmpinc"
1421 fi
1422 if test "x$with_mpc_include" != x; then
1423 gmpinc="-I$with_mpc_include $gmpinc"
1424 fi
1425 if test "x$with_mpc_lib" != x; then
1426 gmplibs="-L$with_mpc_lib $gmplibs"
1427 fi
1428 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1429 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1430 gmpinc='-I$$s/mpc/src '"$gmpinc"
1431 # Do not test the mpc version. Assume that it is sufficient, since
1432 # it is in the source tree, and the library has not been built yet
1433 # but it would be included on the link line in the version check below
1434 # hence making the test fail.
1435 have_gmp=yes
1436 fi
1438 # Specify a location for mpfr
1439 # check for this first so it ends up on the link line before gmp.
1440 AC_ARG_WITH(mpfr-dir,
1441 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1442 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1443 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1445 AC_ARG_WITH(mpfr,
1446 [AS_HELP_STRING([--with-mpfr=PATH],
1447 [specify prefix directory for installed MPFR package.
1448 Equivalent to --with-mpfr-include=PATH/include
1449 plus --with-mpfr-lib=PATH/lib])])
1450 AC_ARG_WITH(mpfr-include,
1451 [AS_HELP_STRING([--with-mpfr-include=PATH],
1452 [specify directory for installed MPFR include files])])
1453 AC_ARG_WITH(mpfr-lib,
1454 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1455 [specify directory for the installed MPFR library])])
1457 if test "x$with_mpfr" != x; then
1458 gmplibs="-L$with_mpfr/lib $gmplibs"
1459 gmpinc="-I$with_mpfr/include $gmpinc"
1460 fi
1461 if test "x$with_mpfr_include" != x; then
1462 gmpinc="-I$with_mpfr_include $gmpinc"
1463 fi
1464 if test "x$with_mpfr_lib" != x; then
1465 gmplibs="-L$with_mpfr_lib $gmplibs"
1466 fi
1467 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1468 # MPFR v3.1.0 moved the sources into a src sub-directory.
1469 if ! test -d ${srcdir}/mpfr/src; then
1470 AC_MSG_ERROR([dnl
1471 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1472 fi
1473 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1474 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1475 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1476 # Do not test the mpfr version. Assume that it is sufficient, since
1477 # it is in the source tree, and the library has not been built yet
1478 # but it would be included on the link line in the version check below
1479 # hence making the test fail.
1480 have_gmp=yes
1481 fi
1483 # Specify a location for gmp
1484 AC_ARG_WITH(gmp-dir,
1485 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1486 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1487 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1489 AC_ARG_WITH(gmp,
1490 [AS_HELP_STRING([--with-gmp=PATH],
1491 [specify prefix directory for the installed GMP package.
1492 Equivalent to --with-gmp-include=PATH/include
1493 plus --with-gmp-lib=PATH/lib])])
1494 AC_ARG_WITH(gmp-include,
1495 [AS_HELP_STRING([--with-gmp-include=PATH],
1496 [specify directory for installed GMP include files])])
1497 AC_ARG_WITH(gmp-lib,
1498 [AS_HELP_STRING([--with-gmp-lib=PATH],
1499 [specify directory for the installed GMP library])])
1502 if test "x$with_gmp" != x; then
1503 gmplibs="-L$with_gmp/lib $gmplibs"
1504 gmpinc="-I$with_gmp/include $gmpinc"
1505 fi
1506 if test "x$with_gmp_include" != x; then
1507 gmpinc="-I$with_gmp_include $gmpinc"
1508 fi
1509 if test "x$with_gmp_lib" != x; then
1510 gmplibs="-L$with_gmp_lib $gmplibs"
1511 fi
1512 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1513 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1514 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1515 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1516 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1517 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1518 # Do not test the gmp version. Assume that it is sufficient, since
1519 # it is in the source tree, and the library has not been built yet
1520 # but it would be included on the link line in the version check below
1521 # hence making the test fail.
1522 have_gmp=yes
1523 fi
1525 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1526 have_gmp=yes
1527 saved_CFLAGS="$CFLAGS"
1528 CFLAGS="$CFLAGS $gmpinc"
1529 # Check for the recommended and required versions of GMP.
1530 AC_MSG_CHECKING([for the correct version of gmp.h])
1531 AC_TRY_COMPILE([#include "gmp.h"],[
1532 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1533 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1534 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1535 choke me
1536 #endif
1537 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1538 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1539 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1540 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1541 choke me
1542 #endif
1543 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1544 [AC_MSG_RESULT([no]); have_gmp=no])
1546 # If we have GMP, check the MPFR version.
1547 if test x"$have_gmp" = xyes; then
1548 # Check for the recommended and required versions of MPFR.
1549 AC_MSG_CHECKING([for the correct version of mpfr.h])
1550 AC_TRY_COMPILE([#include <gmp.h>
1551 #include <mpfr.h>],[
1552 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1553 choke me
1554 #endif
1555 ], [AC_TRY_COMPILE([#include <gmp.h>
1556 #include <mpfr.h>],[
1557 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1558 choke me
1559 #endif
1560 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1561 [AC_MSG_RESULT([no]); have_gmp=no])
1562 fi
1564 # Check for the MPC header version.
1565 if test x"$have_gmp" = xyes ; then
1566 # Check for the recommended and required versions of MPC.
1567 AC_MSG_CHECKING([for the correct version of mpc.h])
1568 AC_TRY_COMPILE([#include <mpc.h>],[
1569 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1570 choke me
1571 #endif
1572 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1573 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1574 choke me
1575 #endif
1576 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1577 [AC_MSG_RESULT([no]); have_gmp=no])
1578 fi
1580 # Now check the MPFR library.
1581 if test x"$have_gmp" = xyes; then
1582 saved_LIBS="$LIBS"
1583 LIBS="$LIBS $gmplibs"
1584 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1585 AC_TRY_LINK([#include <mpc.h>],[
1586 mpfr_t n;
1587 mpfr_t x;
1588 mpc_t c;
1589 int t;
1590 mpfr_init (n);
1591 mpfr_init (x);
1592 mpfr_atan2 (n, n, x, GMP_RNDN);
1593 mpfr_erfc (n, x, GMP_RNDN);
1594 mpfr_subnormalize (x, t, GMP_RNDN);
1595 mpfr_clear(n);
1596 mpfr_clear(x);
1597 mpc_init2 (c, 53);
1598 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1599 mpc_cosh (c, c, MPC_RNDNN);
1600 mpc_pow (c, c, c, MPC_RNDNN);
1601 mpc_acosh (c, c, MPC_RNDNN);
1602 mpc_clear (c);
1603 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1604 LIBS="$saved_LIBS"
1605 fi
1607 CFLAGS="$saved_CFLAGS"
1609 # The library versions listed in the error message below should match
1610 # the HARD-minimums enforced above.
1611 if test x$have_gmp != xyes; then
1612 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1613 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1614 their locations. Source code for these libraries can be found at
1615 their respective hosting sites as well as at
1616 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1617 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1618 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1619 make sure that you have installed both the libraries and the header
1620 files. They may be located in separate packages.])
1621 fi
1622 fi
1624 # Flags needed for both GMP, MPFR and/or MPC.
1625 AC_SUBST(gmplibs)
1626 AC_SUBST(gmpinc)
1627 AC_SUBST(extra_mpfr_configure_flags)
1628 AC_SUBST(extra_mpc_gmp_configure_flags)
1629 AC_SUBST(extra_mpc_mpfr_configure_flags)
1630 AC_SUBST(extra_isl_gmp_configure_flags)
1632 # Libraries to use for stage1 or when not bootstrapping.
1633 AC_ARG_WITH(stage1-libs,
1634 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1635 [if test "$withval" = "no" -o "$withval" = "yes"; then
1636 stage1_libs=
1637 else
1638 stage1_libs=$withval
1639 fi],
1640 [stage1_libs=])
1641 AC_SUBST(stage1_libs)
1643 # Linker flags to use for stage1 or when not bootstrapping.
1644 AC_ARG_WITH(stage1-ldflags,
1645 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1646 [if test "$withval" = "no" -o "$withval" = "yes"; then
1647 stage1_ldflags=
1648 else
1649 stage1_ldflags=$withval
1650 fi],
1651 [stage1_ldflags=
1652 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1653 # if supported. But if the user explicitly specified the libraries to use,
1654 # trust that they are doing what they want.
1655 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1656 stage1_ldflags="-static-libstdc++ -static-libgcc"
1657 fi])
1658 AC_SUBST(stage1_ldflags)
1660 # Libraries to use for stage2 and later builds.
1661 AC_ARG_WITH(boot-libs,
1662 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1663 [if test "$withval" = "no" -o "$withval" = "yes"; then
1664 poststage1_libs=
1665 else
1666 poststage1_libs=$withval
1667 fi],
1668 [poststage1_libs=])
1669 AC_SUBST(poststage1_libs)
1671 # Linker flags to use for stage2 and later builds.
1672 AC_ARG_WITH(boot-ldflags,
1673 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1674 [linker flags for stage2 and later])],
1675 [if test "$withval" = "no" -o "$withval" = "yes"; then
1676 poststage1_ldflags=
1677 else
1678 poststage1_ldflags=$withval
1679 fi],
1680 [poststage1_ldflags=
1681 # In stages 2 and 3, default to linking libstdc++ and libgcc
1682 # statically. But if the user explicitly specified the libraries to
1683 # use, trust that they are doing what they want.
1684 if test "$poststage1_libs" = ""; then
1685 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1686 fi])
1687 AC_SUBST(poststage1_ldflags)
1689 # GCC GRAPHITE dependency isl.
1690 # Basic setup is inlined here, actual checks are in config/isl.m4
1692 AC_ARG_WITH(isl,
1693 [AS_HELP_STRING(
1694 [--with-isl=PATH],
1695 [Specify prefix directory for the installed isl package.
1696 Equivalent to --with-isl-include=PATH/include
1697 plus --with-isl-lib=PATH/lib])])
1699 # Treat --without-isl as a request to disable
1700 # GRAPHITE support and skip all following checks.
1701 if test "x$with_isl" != "xno"; then
1702 # Check for isl
1703 dnl Provide configure switches and initialize islinc & isllibs
1704 dnl with user input.
1705 ISL_INIT_FLAGS
1706 dnl The versions of isl that work for Graphite
1707 ISL_CHECK_VERSION()
1708 dnl Only execute fail-action, if isl has been requested.
1709 ISL_IF_FAILED([
1710 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1711 fi
1713 # If the isl check failed, disable builds of in-tree variant of isl
1714 if test "x$with_isl" = xno ||
1715 test "x$gcc_cv_isl" = xno; then
1716 noconfigdirs="$noconfigdirs isl"
1717 islinc=
1718 fi
1720 AC_SUBST(isllibs)
1721 AC_SUBST(islinc)
1723 # Check for LTO support.
1724 AC_ARG_ENABLE(lto,
1725 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1726 enable_lto=$enableval,
1727 enable_lto=yes; default_enable_lto=yes)
1729 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1730 build_lto_plugin=yes
1731 ],[if test x"$default_enable_lto" = x"yes" ; then
1732 case $target in
1733 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1734 # On other non-ELF platforms, LTO has yet to be validated.
1735 *) enable_lto=no ;;
1736 esac
1737 else
1738 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1739 # It would also be nice to check the binutils support, but we don't
1740 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1741 # warn during gcc/ subconfigure; unless you're bootstrapping with
1742 # -flto it won't be needed until after installation anyway.
1743 case $target in
1744 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1745 *) if test x"$enable_lto" = x"yes"; then
1746 AC_MSG_ERROR([LTO support is not enabled for this target.])
1747 fi
1748 ;;
1749 esac
1750 fi
1751 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1752 # Build it unless LTO was explicitly disabled.
1753 case $target in
1754 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1755 *) ;;
1756 esac
1757 ])
1759 AC_ARG_ENABLE(linker-plugin-configure-flags,
1760 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1761 [additional flags for configuring linker plugins @<:@none@:>@])],
1762 extra_linker_plugin_configure_flags=$enableval,
1763 extra_linker_plugin_configure_flags=)
1764 AC_SUBST(extra_linker_plugin_configure_flags)
1765 AC_ARG_ENABLE(linker-plugin-flags,
1766 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1767 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1768 extra_linker_plugin_flags=$enableval,
1769 extra_linker_plugin_flags=)
1770 AC_SUBST(extra_linker_plugin_flags)
1772 # Enable --enable-host-shared.
1773 # Checked early to determine whether jit is an 'all' language
1774 AC_ARG_ENABLE(host-shared,
1775 [AS_HELP_STRING([--enable-host-shared],
1776 [build host code as shared libraries])],
1777 [host_shared=$enableval], [host_shared=no])
1778 AC_SUBST(host_shared)
1780 # By default, C and C++ are the only stage 1 languages.
1781 stage1_languages=,c,
1783 # Target libraries that we bootstrap.
1784 bootstrap_target_libs=,target-libgcc,
1786 # Figure out what language subdirectories are present.
1787 # Look if the user specified --enable-languages="..."; if not, use
1788 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1789 # go away some day.
1790 # NB: embedded tabs in this IF block -- do not untabify
1791 if test -d ${srcdir}/gcc; then
1792 if test x"${enable_languages+set}" != xset; then
1793 if test x"${LANGUAGES+set}" = xset; then
1794 enable_languages="${LANGUAGES}"
1795 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1796 else
1797 enable_languages=default
1798 fi
1799 else
1800 if test x"${enable_languages}" = x ||
1801 test x"${enable_languages}" = xyes;
1802 then
1803 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1804 exit 1
1805 fi
1806 fi
1807 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1809 # 'f95' is the old name for the 'fortran' language. We issue a warning
1810 # and make the substitution.
1811 case ,${enable_languages}, in
1812 *,f95,*)
1813 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1814 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1815 ;;
1816 esac
1818 # If bootstrapping, C++ must be enabled.
1819 case ",$enable_languages,:$enable_bootstrap" in
1820 *,c++,*:*) ;;
1821 *:yes)
1822 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1823 enable_languages="${enable_languages},c++"
1824 else
1825 AC_MSG_ERROR([bootstrapping requires c++ sources])
1826 fi
1827 ;;
1828 esac
1830 # First scan to see if an enabled language requires some other language.
1831 # We assume that a given config-lang.in will list all the language
1832 # front ends it requires, even if some are required indirectly.
1833 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1834 case ${lang_frag} in
1835 ..) ;;
1836 # The odd quoting in the next line works around
1837 # an apparent bug in bash 1.12 on linux.
1838 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1839 *)
1840 # From the config-lang.in, get $language, $lang_requires, and
1841 # $lang_requires_boot_languages.
1842 language=
1843 lang_requires=
1844 lang_requires_boot_languages=
1845 # set srcdir during sourcing lang_frag to the gcc dir.
1846 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1847 # polutes this shell
1848 saved_srcdir=${srcdir}
1849 srcdir=${srcdir}/gcc . ${lang_frag}
1850 srcdir=${saved_srcdir}
1851 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1852 case ,${enable_languages}, in
1853 *,$other,*) ;;
1854 *,default,*) ;;
1855 *,all,*) ;;
1856 *,$language,*)
1857 echo " \`$other' language required by \`$language'; enabling" 1>&2
1858 enable_languages="${enable_languages},${other}"
1859 ;;
1860 esac
1861 done
1862 for other in ${lang_requires_boot_languages} ; do
1863 if test "$other" != "c"; then
1864 case ,${enable_stage1_languages}, in
1865 *,$other,*) ;;
1866 *,default,*) ;;
1867 *,all,*) ;;
1868 *)
1869 case ,${enable_languages}, in
1870 *,$language,*)
1871 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1872 enable_stage1_languages="$enable_stage1_languages,${other}"
1873 ;;
1874 esac
1875 ;;
1876 esac
1877 fi
1878 done
1879 ;;
1880 esac
1881 done
1883 new_enable_languages=,c,
1885 # If LTO is enabled, add the LTO front end.
1886 if test "$enable_lto" = "yes" ; then
1887 case ,${enable_languages}, in
1888 *,lto,*) ;;
1889 *) enable_languages="${enable_languages},lto" ;;
1890 esac
1891 if test "${build_lto_plugin}" = "yes" ; then
1892 configdirs="$configdirs lto-plugin"
1893 fi
1894 fi
1896 # If we're building an offloading compiler, add the LTO front end.
1897 if test x"$enable_as_accelerator_for" != x ; then
1898 case ,${enable_languages}, in
1899 *,lto,*) ;;
1900 *) enable_languages="${enable_languages},lto" ;;
1901 esac
1902 fi
1904 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
1905 potential_languages=,c,
1907 enabled_target_libs=
1908 disabled_target_libs=
1910 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1911 case ${lang_frag} in
1912 ..) ;;
1913 # The odd quoting in the next line works around
1914 # an apparent bug in bash 1.12 on linux.
1915 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1916 *)
1917 # From the config-lang.in, get $language, $target_libs,
1918 # $lang_dirs, $boot_language, and $build_by_default
1919 language=
1920 target_libs=
1921 lang_dirs=
1922 subdir_requires=
1923 boot_language=no
1924 build_by_default=yes
1925 # set srcdir during sourcing. See above about save & restore
1926 saved_srcdir=${srcdir}
1927 srcdir=${srcdir}/gcc . ${lang_frag}
1928 srcdir=${saved_srcdir}
1929 if test x${language} = x; then
1930 echo "${lang_frag} doesn't set \$language." 1>&2
1931 exit 1
1932 fi
1934 if test "$language" = "c++"; then
1935 boot_language=yes
1936 fi
1938 add_this_lang=no
1939 # C is always enabled, so no need to add it again
1940 if test "$language" != "c"; then
1941 case ,${enable_languages}, in
1942 *,${language},*)
1943 # Language was explicitly selected; include it
1944 add_this_lang=yes
1945 ;;
1946 *,all,*)
1947 # All languages are enabled
1948 add_this_lang=all
1949 ;;
1950 *,default,*)
1951 # 'default' was selected, select it if it is a default language
1952 add_this_lang=${build_by_default}
1953 ;;
1954 esac
1955 fi
1957 # Disable languages that need other directories if these aren't available.
1958 for i in $subdir_requires; do
1959 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1960 case ${add_this_lang} in
1961 yes)
1962 # Specifically requested language; tell them.
1963 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1964 ;;
1965 all)
1966 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
1967 add_this_lang=unsupported
1968 ;;
1969 *)
1970 # Silently disable.
1971 add_this_lang=unsupported
1972 ;;
1973 esac
1974 done
1976 # Disable Ada if no preexisting GNAT is available.
1977 case ${add_this_lang}:${language}:${have_gnat} in
1978 yes:ada:no)
1979 # Specifically requested language; tell them.
1980 AC_MSG_ERROR([GNAT is required to build $language])
1981 ;;
1982 all:ada:no)
1983 AC_MSG_WARN([GNAT is required to build $language])
1984 add_this_lang=unsupported
1985 ;;
1986 *:ada:no)
1987 # Silently disable.
1988 add_this_lang=unsupported
1989 ;;
1990 esac
1992 # Disable jit if -enable-host-shared not specified
1993 case ${add_this_lang}:${language}:${host_shared} in
1994 yes:jit:no)
1995 # PR jit/64780: explicitly specify --enable-host-shared
1996 AC_MSG_ERROR([
1997 Enabling language "jit" requires --enable-host-shared.
1999 --enable-host-shared typically slows the rest of the compiler down by
2000 a few %, so you must explicitly enable it.
2002 If you want to build both the jit and the regular compiler, it is often
2003 best to do this via two separate configure/builds, in separate
2004 directories, to avoid imposing the performance cost of
2005 --enable-host-shared on the regular compiler.])
2006 ;;
2007 all:jit:no)
2008 AC_MSG_WARN([--enable-host-shared required to build $language])
2009 add_this_lang=unsupported
2010 ;;
2011 *:jit:no)
2012 # Silently disable.
2013 add_this_lang=unsupported
2014 ;;
2015 esac
2017 # Disable a language that is unsupported by the target.
2018 case "${add_this_lang}: $unsupported_languages " in
2019 no:*) ;;
2020 unsupported:*) ;;
2021 *:*" $language "*)
2022 AC_MSG_WARN([${language} not supported for this target])
2023 add_this_lang=unsupported
2024 ;;
2025 esac
2027 case $add_this_lang in
2028 unsupported)
2029 # Remove language-dependent dirs.
2030 disabled_target_libs="$disabled_target_libs $target_libs"
2031 noconfigdirs="$noconfigdirs $lang_dirs"
2032 ;;
2033 no)
2034 # Remove language-dependent dirs; still show language as supported.
2035 disabled_target_libs="$disabled_target_libs $target_libs"
2036 noconfigdirs="$noconfigdirs $lang_dirs"
2037 potential_languages="${potential_languages}${language},"
2038 ;;
2039 all|yes)
2040 new_enable_languages="${new_enable_languages}${language},"
2041 potential_languages="${potential_languages}${language},"
2042 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2043 enabled_target_libs="$enabled_target_libs $target_libs"
2044 case "${boot_language}:,$enable_stage1_languages," in
2045 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2046 # Add to (comma-separated) list of stage 1 languages.
2047 case ",$stage1_languages," in
2048 *,$language,* | ,yes, | ,all,) ;;
2049 *) stage1_languages="${stage1_languages}${language}," ;;
2050 esac
2051 # We need to bootstrap any supporting libraries.
2052 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2053 ;;
2054 esac
2055 ;;
2056 esac
2057 ;;
2058 esac
2059 done
2061 # Add target libraries which are only needed for disabled languages
2062 # to noconfigdirs.
2063 if test -n "$disabled_target_libs"; then
2064 for dir in $disabled_target_libs; do
2065 case " $enabled_target_libs " in
2066 *" ${dir} "*) ;;
2067 *) noconfigdirs="$noconfigdirs $dir" ;;
2068 esac
2069 done
2070 fi
2072 AC_ARG_ENABLE(stage1-languages,
2073 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2074 [choose additional languages to build during
2075 stage1. Mostly useful for compiler development])],
2076 [case ,${enable_stage1_languages}, in
2077 ,no,|,,)
2078 # Set it to something that will have no effect in the loop below
2079 enable_stage1_languages=c ;;
2080 ,yes,)
2081 enable_stage1_languages=`echo $new_enable_languages | \
2082 sed -e "s/^,//" -e "s/,$//" ` ;;
2083 *,all,*)
2084 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2085 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2086 esac
2088 # Add "good" languages from enable_stage1_languages to stage1_languages,
2089 # while "bad" languages go in missing_languages. Leave no duplicates.
2090 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2091 case $potential_languages in
2092 *,$i,*)
2093 case $stage1_languages in
2094 *,$i,*) ;;
2095 *) stage1_languages="$stage1_languages$i," ;;
2096 esac ;;
2097 *)
2098 case $missing_languages in
2099 *,$i,*) ;;
2100 *) missing_languages="$missing_languages$i," ;;
2101 esac ;;
2102 esac
2103 done])
2105 # Remove leading/trailing commas that were added for simplicity
2106 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2107 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2108 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2109 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2111 if test "x$missing_languages" != x; then
2112 AC_MSG_ERROR([
2113 The following requested languages could not be built: ${missing_languages}
2114 Supported languages are: ${potential_languages}])
2115 fi
2116 if test "x$new_enable_languages" != "x$enable_languages"; then
2117 echo The following languages will be built: ${new_enable_languages}
2118 enable_languages="$new_enable_languages"
2119 fi
2121 AC_SUBST(stage1_languages)
2122 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2123 fi
2125 # Handle --disable-<component> generically.
2126 for dir in $configdirs $build_configdirs $target_configdirs ; do
2127 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2128 varname=`echo $dirname | sed -e s/+/_/g`
2129 if eval test x\${enable_${varname}} "=" xno ; then
2130 noconfigdirs="$noconfigdirs $dir"
2131 fi
2132 done
2134 # Check for Boehm's garbage collector
2135 AC_ARG_ENABLE(objc-gc,
2136 [AS_HELP_STRING([--enable-objc-gc],
2137 [enable use of Boehm's garbage collector with the
2138 GNU Objective-C runtime])])
2139 AC_ARG_WITH([target-bdw-gc],
2140 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2141 [specify prefix directory for installed bdw-gc package.
2142 Equivalent to --with-target-bdw-gc-include=PATH/include
2143 plus --with-target-bdw-gc-lib=PATH/lib])])
2144 AC_ARG_WITH([target-bdw-gc-include],
2145 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2146 [specify directories for installed bdw-gc include files])])
2147 AC_ARG_WITH([target-bdw-gc-lib],
2148 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2149 [specify directories for installed bdw-gc library])])
2151 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2152 AC_MSG_CHECKING([for bdw garbage collector])
2153 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2154 dnl no bdw-gw options, assume default locations
2155 AC_MSG_RESULT([using bdw-gc in default locations])
2156 else
2157 dnl bdw-gw options, first error checking, complete checking in libobjc
2158 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2159 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2160 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2161 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2162 else
2163 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2164 fi
2165 fi
2166 esac
2168 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2169 case ,${enable_languages}, in
2170 *,c++,*)
2171 # Disable libitm, libsanitizer if we're not building libstdc++
2172 case "${noconfigdirs}" in
2173 *target-libstdc++-v3*)
2174 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2175 ;;
2176 *) ;;
2177 esac
2178 ;;
2179 *)
2180 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2181 ;;
2182 esac
2184 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2185 # $build_configdirs and $target_configdirs.
2186 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2188 notsupp=""
2189 for dir in . $skipdirs $noconfigdirs ; do
2190 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2191 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2192 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2193 if test -r $srcdir/$dirname/configure ; then
2194 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2195 true
2196 else
2197 notsupp="$notsupp $dir"
2198 fi
2199 fi
2200 fi
2201 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2202 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2203 if test -r $srcdir/$dirname/configure ; then
2204 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2205 true
2206 else
2207 notsupp="$notsupp $dir"
2208 fi
2209 fi
2210 fi
2211 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2212 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2213 if test -r $srcdir/$dirname/configure ; then
2214 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2215 true
2216 else
2217 notsupp="$notsupp $dir"
2218 fi
2219 fi
2220 fi
2221 done
2223 # Quietly strip out all directories which aren't configurable in this tree.
2224 # This relies on all configurable subdirectories being autoconfiscated, which
2225 # is now the case.
2226 build_configdirs_all="$build_configdirs"
2227 build_configdirs=
2228 for i in ${build_configdirs_all} ; do
2229 j=`echo $i | sed -e s/build-//g`
2230 if test -f ${srcdir}/$j/configure ; then
2231 build_configdirs="${build_configdirs} $i"
2232 fi
2233 done
2235 configdirs_all="$configdirs"
2236 configdirs=
2237 for i in ${configdirs_all} ; do
2238 if test -f ${srcdir}/$i/configure ; then
2239 configdirs="${configdirs} $i"
2240 fi
2241 done
2243 target_configdirs_all="$target_configdirs"
2244 target_configdirs=
2245 for i in ${target_configdirs_all} ; do
2246 j=`echo $i | sed -e s/target-//g`
2247 if test -f ${srcdir}/$j/configure ; then
2248 target_configdirs="${target_configdirs} $i"
2249 fi
2250 done
2252 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2253 # so we have to add it after the preceding checks.
2254 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2255 then
2256 case " $configdirs " in
2257 *" libiberty "*)
2258 # If we can build libiberty, we can also build libiberty-linker-plugin.
2259 configdirs="$configdirs libiberty-linker-plugin"
2260 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2261 --with-libiberty=../libiberty-linker-plugin";;
2262 *)
2263 AC_MSG_ERROR([libiberty missing]);;
2264 esac
2265 fi
2267 # Sometimes we have special requirements for the host libiberty.
2268 extra_host_libiberty_configure_flags=
2269 extra_host_zlib_configure_flags=
2270 case " $configdirs " in
2271 *" lto-plugin "* | *" libcc1 "*)
2272 # When these are to be built as shared libraries, the same applies to
2273 # libiberty.
2274 extra_host_libiberty_configure_flags=--enable-shared
2275 ;;
2276 *" bfd "*)
2277 # When bfd is to be built as a shared library, the same applies to
2278 # zlib.
2279 if test "$enable_shared" = "yes"; then
2280 extra_host_zlib_configure_flags=--enable-host-shared
2281 fi
2282 ;;
2283 esac
2284 AC_SUBST(extra_host_libiberty_configure_flags)
2285 AC_SUBST(extra_host_zlib_configure_flags)
2287 # Produce a warning message for the subdirs we can't configure.
2288 # This isn't especially interesting in the Cygnus tree, but in the individual
2289 # FSF releases, it's important to let people know when their machine isn't
2290 # supported by the one or two programs in a package.
2292 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2293 # If $appdirs is non-empty, at least one of those directories must still
2294 # be configured, or we error out. (E.g., if the gas release supports a
2295 # specified target in some subdirs but not the gas subdir, we shouldn't
2296 # pretend that all is well.)
2297 if test -n "$appdirs" ; then
2298 for dir in $appdirs ; do
2299 if test -r $dir/Makefile.in ; then
2300 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2301 appdirs=""
2302 break
2303 fi
2304 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2305 appdirs=""
2306 break
2307 fi
2308 fi
2309 done
2310 if test -n "$appdirs" ; then
2311 echo "*** This configuration is not supported by this package." 1>&2
2312 exit 1
2313 fi
2314 fi
2315 # Okay, some application will build, or we don't care to check. Still
2316 # notify of subdirs not getting built.
2317 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2318 echo " ${notsupp}" 1>&2
2319 echo " (Any other directories should still work fine.)" 1>&2
2320 fi
2322 case "$host" in
2323 *msdosdjgpp*)
2324 enable_gdbtk=no ;;
2325 esac
2327 # To find our prefix, in gcc_cv_tool_prefix.
2328 ACX_TOOL_DIRS
2330 copy_dirs=
2332 AC_ARG_WITH([build-sysroot],
2333 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2334 [use sysroot as the system root during the build])],
2335 [if test x"$withval" != x ; then
2336 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2337 fi],
2338 [SYSROOT_CFLAGS_FOR_TARGET=])
2339 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2341 AC_ARG_WITH([debug-prefix-map],
2342 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2343 [map A to B, C to D ... in debug information])],
2344 [if test x"$withval" != x; then
2345 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2346 for debug_map in $withval; do
2347 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2348 done
2349 fi],
2350 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2351 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2353 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2354 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2355 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2356 # We want to ensure that TARGET libraries (which we know are built with
2357 # gcc) are built with "-O2 -g", so include those options when setting
2358 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2359 if test "x$CFLAGS_FOR_TARGET" = x; then
2360 if test "x${is_cross_compiler}" = xyes; then
2361 CFLAGS_FOR_TARGET="-g -O2"
2362 else
2363 CFLAGS_FOR_TARGET=$CFLAGS
2364 case " $CFLAGS " in
2365 *" -O2 "*) ;;
2366 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2367 esac
2368 case " $CFLAGS " in
2369 *" -g "* | *" -g3 "*) ;;
2370 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2371 esac
2372 fi
2373 fi
2374 AC_SUBST(CFLAGS_FOR_TARGET)
2376 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2377 if test "x${is_cross_compiler}" = xyes; then
2378 CXXFLAGS_FOR_TARGET="-g -O2"
2379 else
2380 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2381 case " $CXXFLAGS " in
2382 *" -O2 "*) ;;
2383 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2384 esac
2385 case " $CXXFLAGS " in
2386 *" -g "* | *" -g3 "*) ;;
2387 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2388 esac
2389 fi
2390 fi
2391 AC_SUBST(CXXFLAGS_FOR_TARGET)
2393 AC_SUBST(LDFLAGS_FOR_TARGET)
2395 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2396 # the named directory are copied to $(tooldir)/sys-include.
2397 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2398 if test x${is_cross_compiler} = xno ; then
2399 echo 1>&2 '***' --with-headers is only supported when cross compiling
2400 exit 1
2401 fi
2402 if test x"${with_headers}" != xyes ; then
2403 x=${gcc_cv_tool_prefix}
2404 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2405 fi
2406 fi
2408 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2409 # the name directories are copied to $(tooldir)/lib. Multiple directories
2410 # are permitted.
2411 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2412 if test x${is_cross_compiler} = xno ; then
2413 echo 1>&2 '***' --with-libs is only supported when cross compiling
2414 exit 1
2415 fi
2416 if test x"${with_libs}" != xyes ; then
2417 # Copy the libraries in reverse order, so that files in the first named
2418 # library override files in subsequent libraries.
2419 x=${gcc_cv_tool_prefix}
2420 for l in ${with_libs}; do
2421 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2422 done
2423 fi
2424 fi
2426 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2427 #
2428 # This is done by determining whether or not the appropriate directory
2429 # is available, and by checking whether or not specific configurations
2430 # have requested that this magic not happen.
2431 #
2432 # The command line options always override the explicit settings in
2433 # configure.ac, and the settings in configure.ac override this magic.
2434 #
2435 # If the default for a toolchain is to use GNU as and ld, and you don't
2436 # want to do that, then you should use the --without-gnu-as and
2437 # --without-gnu-ld options for the configure script. Similarly, if
2438 # the default is to use the included zlib and you don't want to do that,
2439 # you should use the --with-system-zlib option for the configure script.
2441 if test x${use_gnu_as} = x &&
2442 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2443 with_gnu_as=yes
2444 extra_host_args="$extra_host_args --with-gnu-as"
2445 fi
2447 if test x${use_gnu_ld} = x &&
2448 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2449 with_gnu_ld=yes
2450 extra_host_args="$extra_host_args --with-gnu-ld"
2451 fi
2453 if test x${use_included_zlib} = x &&
2454 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2455 :
2456 else
2457 with_system_zlib=yes
2458 extra_host_args="$extra_host_args --with-system-zlib"
2459 fi
2461 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2462 # can detect this case.
2464 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2465 with_newlib=yes
2466 extra_host_args="$extra_host_args --with-newlib"
2467 fi
2469 # Handle ${copy_dirs}
2470 set fnord ${copy_dirs}
2471 shift
2472 while test $# != 0 ; do
2473 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2474 :
2475 else
2476 echo Copying $1 to $2
2478 # Use the install script to create the directory and all required
2479 # parent directories.
2480 if test -d $2 ; then
2481 :
2482 else
2483 echo >config.temp
2484 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2485 fi
2487 # Copy the directory, assuming we have tar.
2488 # FIXME: Should we use B in the second tar? Not all systems support it.
2489 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2491 # It is the responsibility of the user to correctly adjust all
2492 # symlinks. If somebody can figure out how to handle them correctly
2493 # here, feel free to add the code.
2495 echo $1 > $2/COPIED
2496 fi
2497 shift; shift
2498 done
2500 # Determine a target-dependent exec_prefix that the installed
2501 # gcc will search in. Keep this list sorted by triplet, with
2502 # the *-*-osname triplets last.
2503 md_exec_prefix=
2504 case "${target}" in
2505 i[[34567]]86-pc-msdosdjgpp*)
2506 md_exec_prefix=/dev/env/DJDIR/bin
2507 ;;
2508 *-*-hpux* | \
2509 *-*-nto-qnx* | \
2510 *-*-solaris2*)
2511 md_exec_prefix=/usr/ccs/bin
2512 ;;
2513 esac
2515 extra_arflags_for_target=
2516 extra_nmflags_for_target=
2517 extra_ranlibflags_for_target=
2518 target_makefile_frag=/dev/null
2519 case "${target}" in
2520 spu-*-*)
2521 target_makefile_frag="config/mt-spu"
2522 ;;
2523 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2524 target_makefile_frag="config/mt-sde"
2525 ;;
2526 mipsisa*-*-elfoabi*)
2527 target_makefile_frag="config/mt-mips-elfoabi"
2528 ;;
2529 mips*-*-*linux* | mips*-*-gnu*)
2530 target_makefile_frag="config/mt-mips-gnu"
2531 ;;
2532 nios2-*-elf*)
2533 target_makefile_frag="config/mt-nios2-elf"
2534 ;;
2535 *-*-linux-android*)
2536 target_makefile_frag="config/mt-android"
2537 ;;
2538 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2539 target_makefile_frag="config/mt-gnu"
2540 ;;
2541 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2542 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2543 # commands to handle both 32-bit and 64-bit objects. These flags are
2544 # harmless if we're using GNU nm or ar.
2545 extra_arflags_for_target=" -X32_64"
2546 extra_nmflags_for_target=" -B -X32_64"
2547 ;;
2548 esac
2550 alphaieee_frag=/dev/null
2551 case $target in
2552 alpha*-*-*)
2553 # This just makes sure to use the -mieee option to build target libs.
2554 # This should probably be set individually by each library.
2555 alphaieee_frag="config/mt-alphaieee"
2556 ;;
2557 esac
2559 # If --enable-target-optspace always use -Os instead of -O2 to build
2560 # the target libraries, similarly if it is not specified, use -Os
2561 # on selected platforms.
2562 ospace_frag=/dev/null
2563 case "${enable_target_optspace}:${target}" in
2564 yes:*)
2565 ospace_frag="config/mt-ospace"
2566 ;;
2567 :d30v-*)
2568 ospace_frag="config/mt-d30v"
2569 ;;
2570 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2571 ospace_frag="config/mt-ospace"
2572 ;;
2573 no:* | :*)
2574 ;;
2575 *)
2576 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2577 ;;
2578 esac
2580 # Some systems (e.g., one of the i386-aix systems the gas testers are
2581 # using) don't handle "\$" correctly, so don't use it here.
2582 tooldir='${exec_prefix}'/${target_noncanonical}
2583 build_tooldir=${tooldir}
2585 # Create a .gdbinit file which runs the one in srcdir
2586 # and tells GDB to look there for source files.
2588 if test -r ${srcdir}/.gdbinit ; then
2589 case ${srcdir} in
2590 .) ;;
2591 *) cat > ./.gdbinit <<EOF
2592 # ${NO_EDIT}
2593 dir ${srcdir}
2594 dir .
2595 source ${srcdir}/.gdbinit
2596 EOF
2597 ;;
2598 esac
2599 fi
2601 # Make sure that the compiler is able to generate an executable. If it
2602 # can't, we are probably in trouble. We don't care whether we can run the
2603 # executable--we might be using a cross compiler--we only care whether it
2604 # can be created. At this point the main configure script has set CC.
2605 we_are_ok=no
2606 echo "int main () { return 0; }" > conftest.c
2607 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2608 if test $? = 0 ; then
2609 if test -s conftest || test -s conftest.exe ; then
2610 we_are_ok=yes
2611 fi
2612 fi
2613 case $we_are_ok in
2614 no)
2615 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2616 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2617 rm -f conftest*
2618 exit 1
2619 ;;
2620 esac
2621 rm -f conftest*
2623 # Decide which environment variable is used to find dynamic libraries.
2624 case "${host}" in
2625 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2626 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2627 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2628 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2629 esac
2631 # On systems where the dynamic library environment variable is PATH,
2632 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2633 # built executables to PATH.
2634 if test "$RPATH_ENVVAR" = PATH; then
2635 GCC_SHLIB_SUBDIR=/shlib
2636 else
2637 GCC_SHLIB_SUBDIR=
2638 fi
2640 # Adjust the toplevel makefile according to whether bootstrap was selected.
2641 case $enable_bootstrap in
2642 yes)
2643 bootstrap_suffix=bootstrap
2644 BUILD_CONFIG=bootstrap-debug
2645 ;;
2646 no)
2647 bootstrap_suffix=no-bootstrap
2648 BUILD_CONFIG=
2649 ;;
2650 esac
2652 AC_MSG_CHECKING(for default BUILD_CONFIG)
2654 AC_ARG_WITH([build-config],
2655 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2656 [use config/NAME.mk build configuration])],
2657 [case $with_build_config in
2658 yes) with_build_config= ;;
2659 no) with_build_config= BUILD_CONFIG= ;;
2660 esac])
2662 if test "x${with_build_config}" != x; then
2663 BUILD_CONFIG=$with_build_config
2664 else
2665 case $BUILD_CONFIG in
2666 bootstrap-debug)
2667 if echo "int f (void) { return 0; }" > conftest.c &&
2668 ${CC} -c conftest.c &&
2669 mv conftest.o conftest.o.g0 &&
2670 ${CC} -c -g conftest.c &&
2671 mv conftest.o conftest.o.g &&
2672 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2673 :
2674 else
2675 BUILD_CONFIG=
2676 fi
2677 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2678 ;;
2679 esac
2680 fi
2681 AC_MSG_RESULT($BUILD_CONFIG)
2682 AC_SUBST(BUILD_CONFIG)
2684 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2685 AC_MSG_CHECKING([for --enable-vtable-verify])
2686 AC_ARG_ENABLE(vtable-verify,
2687 [AS_HELP_STRING([--enable-vtable-verify],
2688 [Enable vtable verification feature])],
2689 [case "$enableval" in
2690 yes) enable_vtable_verify=yes ;;
2691 no) enable_vtable_verify=no ;;
2692 *) enable_vtable_verify=no;;
2693 esac],
2694 [enable_vtable_verify=no])
2695 AC_MSG_RESULT($enable_vtable_verify)
2697 # Record target_configdirs and the configure arguments for target and
2698 # build configuration in Makefile.
2699 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2700 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2701 bootstrap_fixincludes=no
2703 # If we are building libgomp, bootstrap it.
2704 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2705 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2706 fi
2708 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2709 # or bootstrap-ubsan, bootstrap it.
2710 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2711 case "$BUILD_CONFIG" in
2712 *bootstrap-asan* | *bootstrap-ubsan* )
2713 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2714 bootstrap_fixincludes=yes
2715 ;;
2716 esac
2717 fi
2719 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2720 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2721 test "$enable_vtable_verify" != no; then
2722 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2723 fi
2725 # Determine whether gdb needs tk/tcl or not.
2726 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2727 # and in that case we want gdb to be built without tk. Ugh!
2728 # In fact I believe gdb is the *only* package directly dependent on tk,
2729 # so we should be able to put the 'maybe's in unconditionally and
2730 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2731 # 100% sure that that's safe though.
2733 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2734 case "$enable_gdbtk" in
2735 no)
2736 GDB_TK="" ;;
2737 yes)
2738 GDB_TK="${gdb_tk}" ;;
2739 *)
2740 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2741 # distro. Eventually someone will fix this and move Insight, nee
2742 # gdbtk to a separate directory.
2743 if test -d ${srcdir}/gdb/gdbtk ; then
2744 GDB_TK="${gdb_tk}"
2745 else
2746 GDB_TK=""
2747 fi
2748 ;;
2749 esac
2750 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2751 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2753 # gdb depends on gnulib, but as nothing else does, only include it if
2754 # gdb is built.
2755 if echo " ${configdirs} " | grep " gdb " > /dev/null 2>&1 ; then
2756 # The Makefile provides the ordering, so it's enough here to add
2757 # gnulib to the list.
2758 configdirs="${configdirs} gnulib"
2759 fi
2761 # Strip out unwanted targets.
2763 # While at that, we remove Makefiles if we were started for recursive
2764 # configuration, so that the top-level Makefile reconfigures them,
2765 # like we used to do when configure itself was recursive.
2767 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2768 # but now we're fixing up the Makefile ourselves with the additional
2769 # commands passed to AC_CONFIG_FILES. Use separate variables
2770 # extrasub-{build,host,target} not because there is any reason to split
2771 # the substitutions up that way, but only to remain below the limit of
2772 # 99 commands in a script, for HP-UX sed.
2774 # Do not nest @if/@endif or @unless/@endunless pairs, because
2775 # configure will not warn you at all.
2777 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2778 yes:yes:*\ gold\ *:*,c++,*) ;;
2779 yes:yes:*\ gold\ *:*)
2780 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2781 ;;
2782 esac
2784 extrasub_build=
2785 for module in ${build_configdirs} ; do
2786 if test -z "${no_recursion}" \
2787 && test -f ${build_subdir}/${module}/Makefile; then
2788 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2789 rm -f ${build_subdir}/${module}/Makefile
2790 fi
2791 extrasub_build="$extrasub_build
2792 /^@if build-$module\$/d
2793 /^@endif build-$module\$/d
2794 /^@unless build-$module\$/,/^@endunless build-$module\$/d
2795 /^@if build-$module-$bootstrap_suffix\$/d
2796 /^@endif build-$module-$bootstrap_suffix\$/d
2797 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
2798 done
2799 extrasub_host=
2800 for module in ${configdirs} ; do
2801 if test -z "${no_recursion}"; then
2802 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2803 if test -f ${file}; then
2804 echo 1>&2 "*** removing ${file} to force reconfigure"
2805 rm -f ${file}
2806 fi
2807 done
2808 fi
2809 case ${module},${bootstrap_fixincludes} in
2810 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2811 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2812 esac
2813 extrasub_host="$extrasub_host
2814 /^@if $module\$/d
2815 /^@endif $module\$/d
2816 /^@unless $module\$/,/^@endunless $module\$/d
2817 /^@if $module-$host_bootstrap_suffix\$/d
2818 /^@endif $module-$host_bootstrap_suffix\$/d
2819 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
2820 done
2821 extrasub_target=
2822 for module in ${target_configdirs} ; do
2823 if test -z "${no_recursion}" \
2824 && test -f ${target_subdir}/${module}/Makefile; then
2825 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2826 rm -f ${target_subdir}/${module}/Makefile
2827 fi
2829 # We only bootstrap target libraries listed in bootstrap_target_libs.
2830 case $bootstrap_target_libs in
2831 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2832 *) target_bootstrap_suffix=no-bootstrap ;;
2833 esac
2835 extrasub_target="$extrasub_target
2836 /^@if target-$module\$/d
2837 /^@endif target-$module\$/d
2838 /^@unless target-$module\$/,/^@endunless target-$module\$/d
2839 /^@if target-$module-$target_bootstrap_suffix\$/d
2840 /^@endif target-$module-$target_bootstrap_suffix\$/d
2841 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
2842 done
2844 # Do the final fixup along with target modules.
2845 extrasub_target="$extrasub_target
2846 /^@if /,/^@endif /d
2847 /^@unless /d
2848 /^@endunless /d"
2850 # Create the serialization dependencies. This uses a temporary file.
2852 AC_ARG_ENABLE([serial-configure],
2853 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2854 [force sequential configuration of
2855 sub-packages for the host, target or build
2856 machine, or all sub-packages])])
2858 case ${enable_serial_configure} in
2859 yes)
2860 enable_serial_build_configure=yes
2861 enable_serial_host_configure=yes
2862 enable_serial_target_configure=yes
2863 ;;
2864 esac
2866 # These force 'configure's to be done one at a time, to avoid problems
2867 # with contention over a shared config.cache.
2868 rm -f serdep.tmp
2869 echo '# serdep.tmp' > serdep.tmp
2870 olditem=
2871 test "x${enable_serial_build_configure}" = xyes &&
2872 for item in ${build_configdirs} ; do
2873 case ${olditem} in
2874 "") ;;
2875 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2876 esac
2877 olditem=${item}
2878 done
2879 olditem=
2880 test "x${enable_serial_host_configure}" = xyes &&
2881 for item in ${configdirs} ; do
2882 case ${olditem} in
2883 "") ;;
2884 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2885 esac
2886 olditem=${item}
2887 done
2888 olditem=
2889 test "x${enable_serial_target_configure}" = xyes &&
2890 for item in ${target_configdirs} ; do
2891 case ${olditem} in
2892 "") ;;
2893 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2894 esac
2895 olditem=${item}
2896 done
2897 serialization_dependencies=serdep.tmp
2898 AC_SUBST_FILE(serialization_dependencies)
2900 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2901 # target, nonopt, and variable assignments. These are the ones we
2902 # might not want to pass down to subconfigures. The exception being
2903 # --cache-file=/dev/null, which is used to turn off the use of cache
2904 # files altogether, and which should be passed on to subconfigures.
2905 # Also strip program-prefix, program-suffix, and program-transform-name,
2906 # so that we can pass down a consistent program-transform-name.
2907 baseargs=
2908 tbaseargs=
2909 keep_next=no
2910 skip_next=no
2911 eval "set -- $ac_configure_args"
2912 for ac_arg
2913 do
2914 if test X"$skip_next" = X"yes"; then
2915 skip_next=no
2916 continue
2917 fi
2918 if test X"$keep_next" = X"yes"; then
2919 case $ac_arg in
2920 *\'*)
2921 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2922 esac
2923 baseargs="$baseargs '$ac_arg'"
2924 tbaseargs="$tbaseargs '$ac_arg'"
2925 keep_next=no
2926 continue
2927 fi
2929 # Handle separated arguments. Based on the logic generated by
2930 # autoconf 2.59.
2931 case $ac_arg in
2932 *=* | --config-cache | -C | -disable-* | --disable-* \
2933 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2934 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2935 | -with-* | --with-* | -without-* | --without-* | --x)
2936 separate_arg=no
2937 ;;
2938 -*)
2939 separate_arg=yes
2940 ;;
2941 *)
2942 separate_arg=no
2943 ;;
2944 esac
2946 skip_targ=no
2947 case $ac_arg in
2948 changequote(,)
2949 --with-* | --without-*)
2950 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2952 case $libopt in
2953 *[-_]include)
2954 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2955 ;;
2956 *[-_]lib)
2957 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2958 ;;
2959 *)
2960 lib=$libopt
2961 ;;
2962 esac
2963 changequote([,])
2965 case $lib in
2966 mpc | mpfr | gmp | isl)
2967 # If we're processing --with-$lib, --with-$lib-include or
2968 # --with-$lib-lib, for one of the libs above, and target is
2969 # different from host, don't pass the current argument to any
2970 # target library's configure.
2971 if test x$is_cross_compiler = xyes; then
2972 skip_targ=yes
2973 fi
2974 ;;
2975 esac
2976 ;;
2977 esac
2979 case "$ac_arg" in
2980 --cache-file=/dev/null | \
2981 -cache-file=/dev/null )
2982 # Handled here to avoid the test to skip args below.
2983 baseargs="$baseargs '$ac_arg'"
2984 tbaseargs="$tbaseargs '$ac_arg'"
2985 # Assert: $separate_arg should always be no.
2986 keep_next=$separate_arg
2987 ;;
2988 --no*)
2989 continue
2990 ;;
2991 --c* | \
2992 --sr* | \
2993 --ho* | \
2994 --bu* | \
2995 --t* | \
2996 --program-* | \
2997 -cache_file* | \
2998 -srcdir* | \
2999 -host* | \
3000 -build* | \
3001 -target* | \
3002 -program-prefix* | \
3003 -program-suffix* | \
3004 -program-transform-name* )
3005 skip_next=$separate_arg
3006 continue
3007 ;;
3008 -*)
3009 # An option. Add it.
3010 case $ac_arg in
3011 *\'*)
3012 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3013 esac
3014 baseargs="$baseargs '$ac_arg'"
3015 if test X"$skip_targ" = Xno; then
3016 tbaseargs="$tbaseargs '$ac_arg'"
3017 fi
3018 keep_next=$separate_arg
3019 ;;
3020 *)
3021 # Either a variable assignment, or a nonopt (triplet). Don't
3022 # pass it down; let the Makefile handle this.
3023 continue
3024 ;;
3025 esac
3026 done
3027 # Remove the initial space we just introduced and, as these will be
3028 # expanded by make, quote '$'.
3029 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3031 # Add in --program-transform-name, after --program-prefix and
3032 # --program-suffix have been applied to it. Autoconf has already
3033 # doubled dollar signs and backslashes in program_transform_name; we want
3034 # the backslashes un-doubled, and then the entire thing wrapped in single
3035 # quotes, because this will be expanded first by make and then by the shell.
3036 # Also, because we want to override the logic in subdir configure scripts to
3037 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3038 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3039 ${program_transform_name}
3040 EOF_SED
3041 gcc_transform_name=`cat conftestsed.out`
3042 rm -f conftestsed.out
3043 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3044 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3045 if test "$silent" = yes; then
3046 baseargs="$baseargs --silent"
3047 tbaseargs="$tbaseargs --silent"
3048 fi
3049 baseargs="$baseargs --disable-option-checking"
3050 tbaseargs="$tbaseargs --disable-option-checking"
3052 # Record and document user additions to sub configure arguments.
3053 AC_ARG_VAR([build_configargs],
3054 [additional configure arguments for build directories])
3055 AC_ARG_VAR([host_configargs],
3056 [additional configure arguments for host directories])
3057 AC_ARG_VAR([target_configargs],
3058 [additional configure arguments for target directories])
3060 # For the build-side libraries, we just need to pretend we're native,
3061 # and not use the same cache file. Multilibs are neither needed nor
3062 # desired. We can't even use the same cache file for all build-side
3063 # libraries, as they're compiled differently; some with C, some with
3064 # C++ or with different feature-enabling options.
3065 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3067 # For host modules, accept cache file option, or specification as blank.
3068 case "${cache_file}" in
3069 "") # empty
3070 cache_file_option="" ;;
3071 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3072 cache_file_option="--cache-file=${cache_file}" ;;
3073 *) # relative path
3074 cache_file_option="--cache-file=../${cache_file}" ;;
3075 esac
3077 # Host dirs don't like to share a cache file either, horribly enough.
3078 # This seems to be due to autoconf 2.5x stupidity.
3079 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3081 target_configargs="$target_configargs ${tbaseargs}"
3083 # Passing a --with-cross-host argument lets the target libraries know
3084 # whether they are being built with a cross-compiler or being built
3085 # native. However, it would be better to use other mechanisms to make the
3086 # sorts of decisions they want to make on this basis. Please consider
3087 # this option to be deprecated. FIXME.
3088 if test x${is_cross_compiler} = xyes ; then
3089 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3090 fi
3092 # Special user-friendly check for native x86_64-linux build, if
3093 # multilib is not explicitly enabled.
3094 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3095 x86_64-*linux*:yes:$build:$build:)
3096 # Make sure we have a development environment that handles 32-bit
3097 dev64=no
3098 echo "int main () { return 0; }" > conftest.c
3099 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3100 if test $? = 0 ; then
3101 if test -s conftest || test -s conftest.exe ; then
3102 dev64=yes
3103 fi
3104 fi
3105 rm -f conftest*
3106 if test x${dev64} != xyes ; then
3107 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.])
3108 fi
3109 ;;
3110 esac
3112 # Default to --enable-multilib.
3113 if test x${enable_multilib} = x ; then
3114 target_configargs="--enable-multilib ${target_configargs}"
3115 fi
3117 # Pass --with-newlib if appropriate. Note that target_configdirs has
3118 # changed from the earlier setting of with_newlib.
3119 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3120 target_configargs="--with-newlib ${target_configargs}"
3121 fi
3123 # Different target subdirs use different values of certain variables
3124 # (notably CXX). Worse, multilibs use *lots* of different values.
3125 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3126 # it doesn't automatically accept command-line overrides of them.
3127 # This means it's not safe for target subdirs to share a cache file,
3128 # which is disgusting, but there you have it. Hopefully this can be
3129 # fixed in future. It's still worthwhile to use a cache file for each
3130 # directory. I think.
3132 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3133 # We need to pass --target, as newer autoconf's requires consistency
3134 # for target_alias and gcc doesn't manage it consistently.
3135 target_configargs="--cache-file=./config.cache ${target_configargs}"
3137 FLAGS_FOR_TARGET=
3138 case " $target_configdirs " in
3139 *" newlib "*)
3140 case " $target_configargs " in
3141 *" --with-newlib "*)
3142 case "$target" in
3143 *-cygwin*)
3144 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3145 ;;
3146 esac
3148 # If we're not building GCC, don't discard standard headers.
3149 if test -d ${srcdir}/gcc; then
3150 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3152 if test "${build}" != "${host}"; then
3153 # On Canadian crosses, CC_FOR_TARGET will have already been set
3154 # by `configure', so we won't have an opportunity to add -Bgcc/
3155 # to it. This is right: we don't want to search that directory
3156 # for binaries, but we want the header files in there, so add
3157 # them explicitly.
3158 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3160 # Someone might think of using the pre-installed headers on
3161 # Canadian crosses, in case the installed compiler is not fully
3162 # compatible with the compiler being built. In this case, it
3163 # would be better to flag an error than risking having
3164 # incompatible object files being constructed. We can't
3165 # guarantee that an error will be flagged, but let's hope the
3166 # compiler will do it, when presented with incompatible header
3167 # files.
3168 fi
3169 fi
3171 case "${target}-${is_cross_compiler}" in
3172 i[[3456789]]86-*-linux*-no)
3173 # Here host == target, so we don't need to build gcc,
3174 # so we don't want to discard standard headers.
3175 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3176 ;;
3177 *)
3178 # If we're building newlib, use its generic headers last, but search
3179 # for any libc-related directories first (so make it the last -B
3180 # switch).
3181 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3183 # If we're building libgloss, find the startup file, simulator library
3184 # and linker script.
3185 case " $target_configdirs " in
3186 *" libgloss "*)
3187 # Look for startup file, simulator library and maybe linker script.
3188 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3189 # Look for libnosys.a in case the target needs it.
3190 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3191 # Most targets have the linker script in the source directory.
3192 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3193 ;;
3194 esac
3195 ;;
3196 esac
3197 ;;
3198 esac
3199 ;;
3200 esac
3202 case "$target" in
3203 x86_64-*mingw* | *-w64-mingw*)
3204 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3205 # however, use a symlink named 'mingw' in ${prefix} .
3206 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3207 ;;
3208 *-mingw*)
3209 # MinGW can't be handled as Cygwin above since it does not use newlib.
3210 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3211 ;;
3212 esac
3214 # Allow the user to override the flags for
3215 # our build compiler if desired.
3216 if test x"${build}" = x"${host}" ; then
3217 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3218 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3219 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3220 fi
3222 # On Canadian crosses, we'll be searching the right directories for
3223 # the previously-installed cross compiler, so don't bother to add
3224 # flags for directories within the install tree of the compiler
3225 # being built; programs in there won't even run.
3226 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3227 # Search for pre-installed headers if nothing else fits.
3228 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3229 fi
3231 if test "x${use_gnu_ld}" = x &&
3232 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3233 # Arrange for us to find uninstalled linker scripts.
3234 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3235 fi
3237 # Search for other target-specific linker scripts and such.
3238 case "${target}" in
3239 mep*)
3240 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3241 ;;
3242 esac
3244 # Makefile fragments.
3245 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3246 do
3247 eval fragval=\$$frag
3248 if test $fragval != /dev/null; then
3249 eval $frag=${srcdir}/$fragval
3250 fi
3251 done
3252 AC_SUBST_FILE(host_makefile_frag)
3253 AC_SUBST_FILE(target_makefile_frag)
3254 AC_SUBST_FILE(alphaieee_frag)
3255 AC_SUBST_FILE(ospace_frag)
3257 # Miscellanea: directories, flags, etc.
3258 AC_SUBST(RPATH_ENVVAR)
3259 AC_SUBST(GCC_SHLIB_SUBDIR)
3260 AC_SUBST(tooldir)
3261 AC_SUBST(build_tooldir)
3262 AC_SUBST(CONFIGURE_GDB_TK)
3263 AC_SUBST(GDB_TK)
3264 AC_SUBST(INSTALL_GDB_TK)
3266 # Build module lists & subconfigure args.
3267 AC_SUBST(build_configargs)
3268 AC_SUBST(build_configdirs)
3270 # Host module lists & subconfigure args.
3271 AC_SUBST(host_configargs)
3272 AC_SUBST(configdirs)
3273 AC_SUBST(target_configdirs)
3275 # Target module lists & subconfigure args.
3276 AC_SUBST(target_configargs)
3279 # Build tools.
3280 AC_SUBST(AR_FOR_BUILD)
3281 AC_SUBST(AS_FOR_BUILD)
3282 AC_SUBST(CC_FOR_BUILD)
3283 AC_SUBST(CFLAGS_FOR_BUILD)
3284 AC_SUBST(CXXFLAGS_FOR_BUILD)
3285 AC_SUBST(CXX_FOR_BUILD)
3286 AC_SUBST(DLLTOOL_FOR_BUILD)
3287 AC_SUBST(GFORTRAN_FOR_BUILD)
3288 AC_SUBST(GOC_FOR_BUILD)
3289 AC_SUBST(GDC_FOR_BUILD)
3290 AC_SUBST(LDFLAGS_FOR_BUILD)
3291 AC_SUBST(LD_FOR_BUILD)
3292 AC_SUBST(NM_FOR_BUILD)
3293 AC_SUBST(RANLIB_FOR_BUILD)
3294 AC_SUBST(WINDMC_FOR_BUILD)
3295 AC_SUBST(WINDRES_FOR_BUILD)
3297 # Generate default definitions for YACC, M4, LEX and other programs that run
3298 # on the build machine. These are used if the Makefile can't locate these
3299 # programs in objdir.
3300 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3302 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3303 case " $build_configdirs " in
3304 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3305 esac
3307 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3308 case " $build_configdirs " in
3309 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3310 esac
3312 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3313 case " $build_configdirs " in
3314 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3315 esac
3317 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3318 case " $build_configdirs " in
3319 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3320 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3321 esac
3323 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3324 case " $build_configdirs " in
3325 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3326 esac
3328 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3329 case " $build_configdirs " in
3330 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3331 *)
3332 changequote(,)
3333 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3334 # higher, else we use the "missing" dummy.
3335 if ${MAKEINFO} --version \
3336 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3337 :
3338 else
3339 MAKEINFO="$MISSING makeinfo"
3340 fi
3341 ;;
3342 changequote([,])
3343 esac
3345 # FIXME: expect and dejagnu may become build tools?
3347 AC_CHECK_PROGS(EXPECT, expect, expect)
3348 case " $configdirs " in
3349 *" expect "*)
3350 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3351 ;;
3352 esac
3354 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3355 case " $configdirs " in
3356 *" dejagnu "*)
3357 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3358 ;;
3359 esac
3362 # Host tools.
3363 NCN_STRICT_CHECK_TOOLS(AR, ar)
3364 NCN_STRICT_CHECK_TOOLS(AS, as)
3365 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3366 NCN_STRICT_CHECK_TOOLS(LD, ld)
3367 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3368 NCN_STRICT_CHECK_TOOLS(NM, nm)
3369 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3370 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3371 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3372 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3373 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3374 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3375 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3376 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3377 AC_SUBST(CC)
3378 AC_SUBST(CXX)
3379 AC_SUBST(CFLAGS)
3380 AC_SUBST(CXXFLAGS)
3382 # Target tools.
3383 AC_ARG_WITH([build-time-tools],
3384 [AS_HELP_STRING([--with-build-time-tools=PATH],
3385 [use given path to find target tools during the build])],
3386 [case x"$withval" in
3387 x/*) ;;
3388 *)
3389 with_build_time_tools=
3390 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3391 ;;
3392 esac],
3393 [with_build_time_tools=])
3395 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3396 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3397 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3398 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3399 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3400 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3402 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3403 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3404 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3405 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3406 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3407 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3408 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3409 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3410 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3411 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3412 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3413 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3414 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3415 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3417 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3419 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3420 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3421 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3422 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3423 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3424 [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],
3425 c++)
3426 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3427 [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],
3428 c++)
3429 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3430 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3431 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3432 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3433 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3434 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3435 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3436 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3437 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3438 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3439 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3440 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3441 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3442 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3443 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3444 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3445 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3446 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3447 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3449 AC_SUBST(FLAGS_FOR_TARGET)
3450 AC_SUBST(RAW_CXX_FOR_TARGET)
3452 # Certain tools may need extra flags.
3453 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3454 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3455 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3457 # When building target libraries, except in a Canadian cross, we use
3458 # the same toolchain as the compiler we just built.
3459 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3460 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3461 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3462 if test $host = $build; then
3463 case " $configdirs " in
3464 *" gcc "*)
3465 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3466 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3467 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3468 ;;
3469 esac
3470 fi
3472 AC_SUBST(COMPILER_AS_FOR_TARGET)
3473 AC_SUBST(COMPILER_LD_FOR_TARGET)
3474 AC_SUBST(COMPILER_NM_FOR_TARGET)
3476 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3477 AC_ARG_ENABLE(maintainer-mode,
3478 [AS_HELP_STRING([--enable-maintainer-mode],
3479 [enable make rules and dependencies not useful
3480 (and sometimes confusing) to the casual installer])],
3481 USE_MAINTAINER_MODE=$enableval,
3482 USE_MAINTAINER_MODE=no)
3483 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3484 AC_SUBST(MAINTAINER_MODE_TRUE)
3485 AC_SUBST(MAINTAINER_MODE_FALSE)
3486 if test "$USE_MAINTAINER_MODE" = yes; then
3487 MAINTAINER_MODE_TRUE=
3488 MAINTAINER_MODE_FALSE='#'
3489 else
3490 MAINTAINER_MODE_TRUE='#'
3491 MAINTAINER_MODE_FALSE=
3492 fi
3493 MAINT=$MAINTAINER_MODE_TRUE
3494 AC_SUBST(MAINT)dnl
3496 # ---------------------
3497 # GCC bootstrap support
3498 # ---------------------
3500 # Stage specific cflags for build.
3501 stage1_cflags="-g"
3502 case $build in
3503 vax-*-*)
3504 case ${GCC} in
3505 yes) stage1_cflags="-g -Wa,-J" ;;
3506 *) stage1_cflags="-g -J" ;;
3507 esac ;;
3508 esac
3510 AC_SUBST(stage1_cflags)
3512 # Enable --enable-checking in stage1 of the compiler.
3513 AC_ARG_ENABLE(stage1-checking,
3514 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3515 [choose additional checking for stage1 of the compiler])],
3516 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3517 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3518 # For --disable-checking or implicit --enable-checking=release, avoid
3519 # setting --enable-checking=gc in the default stage1 checking for LTO
3520 # bootstraps. See PR62077.
3521 case $BUILD_CONFIG in
3522 *lto*)
3523 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3524 *)
3525 stage1_checking=--enable-checking=yes,types;;
3526 esac
3527 if test "x$enable_checking" = x && \
3528 test -d ${srcdir}/gcc && \
3529 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3530 stage1_checking=--enable-checking=yes,types,extra
3531 fi
3532 else
3533 stage1_checking=--enable-checking=$enable_checking,types
3534 fi])
3535 AC_SUBST(stage1_checking)
3537 # Enable -Werror in bootstrap stage2 and later.
3538 AC_ARG_ENABLE(werror,
3539 [AS_HELP_STRING([--enable-werror],
3540 [enable -Werror in bootstrap stage2 and later])],
3541 [
3542 case ${enable_werror} in
3543 yes) stage2_werror_flag="--enable-werror-always" ;;
3544 *) stage2_werror_flag="" ;;
3545 esac
3546 ],
3547 [
3548 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3549 case $BUILD_CONFIG in
3550 bootstrap-debug)
3551 stage2_werror_flag="--enable-werror-always" ;;
3552 "")
3553 stage2_werror_flag="--enable-werror-always" ;;
3554 esac
3555 fi
3556 ])
3558 AC_SUBST(stage2_werror_flag)
3560 # Specify what files to not compare during bootstrap.
3562 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3563 case "$target" in
3564 hppa*64*-*-hpux*) ;;
3565 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
3566 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3567 esac
3568 AC_SUBST(compare_exclusions)
3570 AC_CONFIG_FILES([Makefile],
3571 [sed "$extrasub_build" Makefile |
3572 sed "$extrasub_host" |
3573 sed "$extrasub_target" > mf$$
3574 mv -f mf$$ Makefile],
3575 [extrasub_build="$extrasub_build"
3576 extrasub_host="$extrasub_host"
3577 extrasub_target="$extrasub_target"])
3578 AC_OUTPUT