| blob | fbf7400c412663dd1cf813f4e837fac859a63eb6 |
1 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
2 # 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
3 # 2014, 2015, 2016 Free Software Foundation, Inc.
4 #
5 # This file is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program; see the file COPYING3. If not see
17 # <http://www.gnu.org/licenses/>.
19 ##############################################################################
20 ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
22 m4_include(config/acx.m4)
23 m4_include(config/override.m4)
24 m4_include(config/proginstall.m4)
25 m4_include(config/elf.m4)
26 m4_include([libtool.m4])
27 m4_include([ltoptions.m4])
28 m4_include([ltsugar.m4])
29 m4_include([ltversion.m4])
30 m4_include([lt~obsolete.m4])
31 m4_include([config/isl.m4])
33 AC_INIT(move-if-change)
34 AC_PREREQ(2.64)
35 AC_DISABLE_OPTION_CHECKING
37 progname=$0
38 # if PWD already has a value, it is probably wrong.
39 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
41 # Export original configure arguments for use by sub-configures.
42 # Quote arguments with shell meta charatcers.
43 TOPLEVEL_CONFIGURE_ARGUMENTS=
44 set -- "$progname" "$@"
45 for ac_arg
46 do
47 case "$ac_arg" in
48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
50 # if the argument is of the form -foo=baz, quote the baz part only
51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
52 *) ;;
53 esac
54 # Add the quoted argument to the list.
55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
56 done
57 if test "$silent" = yes; then
58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
59 fi
60 # Remove the initial space we just introduced and, as these will be
61 # expanded by make, quote '$'.
62 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
63 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
65 # Find the build, host, and target systems.
66 ACX_NONCANONICAL_BUILD
67 ACX_NONCANONICAL_HOST
68 ACX_NONCANONICAL_TARGET
70 dnl Autoconf 2.5x and later will set a default program prefix if
71 dnl --target was used, even if it was the same as --host. Disable
72 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
73 dnl to take effect.
74 test "$host_noncanonical" = "$target_noncanonical" &&
75 test "$program_prefix$program_suffix$program_transform_name" = \
76 NONENONEs,x,x, &&
77 program_transform_name=s,y,y,
79 AC_CANONICAL_SYSTEM
80 AC_ARG_PROGRAM
82 m4_pattern_allow([^AS_FOR_TARGET$])dnl
83 m4_pattern_allow([^AS_FOR_BUILD$])dnl
85 # Get 'install' or 'install-sh' and its variants.
86 AC_PROG_INSTALL
87 ACX_PROG_LN
88 AC_PROG_LN_S
89 AC_PROG_SED
90 AC_PROG_AWK
92 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
94 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
95 # a relative path.
96 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
97 INSTALL="${srcpwd}/install-sh -c"
98 fi
100 # Set srcdir to "." if that's what it is.
101 # This is important for multilib support.
102 pwd=`${PWDCMD-pwd}`
103 if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105 fi
107 topsrcdir=$srcpwd
109 extra_host_args=
111 ### To add a new directory to the tree, first choose whether it is a target
112 ### or a host dependent tool. Then put it into the appropriate list
113 ### (library or tools, host or target), doing a dependency sort.
115 # Subdirs will be configured in the order listed in build_configdirs,
116 # configdirs, or target_configdirs; see the serialization section below.
118 # Dependency sorting is only needed when *configuration* must be done in
119 # a particular order. In all cases a dependency should be specified in
120 # the Makefile, whether or not it's implicitly specified here.
122 # Double entries in build_configdirs, configdirs, or target_configdirs may
123 # cause circular dependencies and break everything horribly.
125 # these library is used by various programs built for the build
126 # environment
127 #
128 build_libs="build-libiberty build-libcpp"
130 # these tools are built for the build environment
131 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
133 # these libraries are used by various programs built for the host environment
134 #f
135 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv"
137 # these tools are built for the host environment
138 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
139 # know that we are building the simulator.
140 # binutils, gas and ld appear in that order because it makes sense to run
141 # "make check" in that particular order.
142 # If --enable-gold is used, "gold" may replace "ld".
143 host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools"
145 # these libraries are built for the target environment, and are built after
146 # the host libraries and the host tools (which may be a cross compiler)
147 # Note that libiberty is not a target library.
148 target_libraries="target-libgcc \
149 target-libbacktrace \
150 target-libgloss \
151 target-newlib \
152 target-libgomp \
153 target-liboffloadmic \
154 target-libhsail-rt \
155 target-libatomic \
156 target-libitm \
157 target-libstdc++-v3 \
158 target-libsanitizer \
159 target-libvtv \
160 target-libmpx \
161 target-libssp \
162 target-libquadmath \
163 target-libgfortran \
164 target-libffi \
165 target-libobjc \
166 target-libada \
167 target-libgo"
169 # these tools are built using the target libraries, and are intended to
170 # run only in the target environment
171 #
172 # note: any program that *uses* libraries that are in the "target_libraries"
173 # list belongs in this list.
174 #
175 target_tools="target-rda"
177 ################################################################################
179 ## All tools belong in one of the four categories, and are assigned above
180 ## We assign ${configdirs} this way to remove all embedded newlines. This
181 ## is important because configure will choke if they ever get through.
182 ## ${configdirs} is directories we build using the host tools.
183 ## ${target_configdirs} is directories we build using the target tools.
184 configdirs=`echo ${host_libs} ${host_tools}`
185 target_configdirs=`echo ${target_libraries} ${target_tools}`
186 build_configdirs=`echo ${build_libs} ${build_tools}`
188 m4_divert_text([PARSE_ARGS],
189 [case $srcdir in
190 *" "*)
191 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
192 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
193 m4_popdef([AS_MESSAGE_LOG_FD])dnl
194 ;;
195 esac
196 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
197 ])
199 ################################################################################
201 srcname="gnu development package"
203 # This gets set non-empty for some net releases of packages.
204 appdirs=""
206 # Define is_cross_compiler to save on calls to 'test'.
207 is_cross_compiler=
208 if test x"${host}" = x"${target}" ; then
209 is_cross_compiler=no
210 else
211 is_cross_compiler=yes
212 fi
214 # Find the build and target subdir names.
215 GCC_TOPLEV_SUBDIRS
216 # Be sure to cover against remnants of an in-tree build.
217 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
218 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
219 Use a pristine source tree when building in a separate tree])
220 fi
222 # Skipdirs are removed silently.
223 skipdirs=
224 # Noconfigdirs are removed loudly.
225 noconfigdirs=""
227 use_gnu_ld=
228 # Make sure we don't let GNU ld be added if we didn't want it.
229 if test x$with_gnu_ld = xno ; then
230 use_gnu_ld=no
231 noconfigdirs="$noconfigdirs ld gold"
232 fi
234 use_gnu_as=
235 # Make sure we don't let GNU as be added if we didn't want it.
236 if test x$with_gnu_as = xno ; then
237 use_gnu_as=no
238 noconfigdirs="$noconfigdirs gas"
239 fi
241 use_included_zlib=
242 AC_ARG_WITH(system-zlib,
243 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
244 # Make sure we don't let ZLIB be added if we didn't want it.
245 if test x$with_system_zlib = xyes ; then
246 use_included_zlib=no
247 noconfigdirs="$noconfigdirs zlib"
248 fi
250 # some tools are so dependent upon X11 that if we're not building with X,
251 # it's not even worth trying to configure, much less build, that tool.
253 case ${with_x} in
254 yes | "") ;; # the default value for this tree is that X11 is available
255 no)
256 skipdirs="${skipdirs} tk itcl libgui"
257 # We won't be able to build gdbtk without X.
258 enable_gdbtk=no
259 ;;
260 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
261 esac
263 # Some are only suitable for cross toolchains.
264 # Remove these if host=target.
265 cross_only="target-libgloss target-newlib target-opcodes"
267 case $is_cross_compiler in
268 no) skipdirs="${skipdirs} ${cross_only}" ;;
269 esac
271 # If both --with-headers and --with-libs are specified, default to
272 # --without-newlib.
273 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
274 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
275 if test x"${with_newlib}" = x ; then
276 with_newlib=no
277 fi
278 fi
280 # Recognize --with-newlib/--without-newlib.
281 case ${with_newlib} in
282 no) skipdirs="${skipdirs} target-newlib" ;;
283 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
284 esac
286 AC_ARG_ENABLE(as-accelerator-for,
287 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
288 [build as offload target compiler.
289 Specify offload host triple by ARG])])
291 AC_ARG_ENABLE(offload-targets,
292 [AS_HELP_STRING([--enable-offload-targets=LIST],
293 [enable offloading to devices from comma-separated LIST of
294 TARGET[=DIR]. Use optional path to find offload target compiler
295 during the build])],
296 [
297 if test x"$enable_offload_targets" = x; then
298 AC_MSG_ERROR([no offload targets specified])
299 fi
300 ], [enable_offload_targets=])
302 # Handle --enable-gold, --enable-ld.
303 # --disable-gold [--enable-ld]
304 # Build only ld. Default option.
305 # --enable-gold [--enable-ld]
306 # Build both gold and ld. Install gold as "ld.gold", install ld
307 # as "ld.bfd" and "ld".
308 # --enable-gold=default [--enable-ld]
309 # Build both gold and ld. Install gold as "ld.gold" and "ld",
310 # install ld as "ld.bfd".
311 # --enable-gold[=default] --disable-ld
312 # Build only gold, which is then installed as both "ld.gold" and "ld".
313 # --enable-gold --enable-ld=default
314 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
315 # and ld.bfd).
316 # In other words, ld is default
317 # --enable-gold=default --enable-ld=default
318 # Error.
320 default_ld=
321 AC_ARG_ENABLE(gold,
322 [AS_HELP_STRING([[--enable-gold[=ARG]]],
323 [build gold @<:@ARG={default,yes,no}@:>@])],
324 ENABLE_GOLD=$enableval,
325 ENABLE_GOLD=no)
326 case "${ENABLE_GOLD}" in
327 yes|default)
328 # Check for ELF target.
329 is_elf=no
330 case "${target}" in
331 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
332 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
333 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
334 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
335 case "${target}" in
336 *-*-linux*aout* | *-*-linux*oldld*)
337 ;;
338 *)
339 is_elf=yes
340 ;;
341 esac
342 esac
344 if test "$is_elf" = "yes"; then
345 # Check for target supported by gold.
346 case "${target}" in
347 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
348 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
349 configdirs="$configdirs gold"
350 if test x${ENABLE_GOLD} = xdefault; then
351 default_ld=gold
352 fi
353 ENABLE_GOLD=yes
354 ;;
355 esac
356 fi
357 ;;
358 no)
359 ;;
360 *)
361 AC_MSG_ERROR([invalid --enable-gold argument])
362 ;;
363 esac
365 AC_ARG_ENABLE(ld,
366 [AS_HELP_STRING([[--enable-ld[=ARG]]],
367 [build ld @<:@ARG={default,yes,no}@:>@])],
368 ENABLE_LD=$enableval,
369 ENABLE_LD=yes)
371 case "${ENABLE_LD}" in
372 default)
373 if test x${default_ld} != x; then
374 AC_MSG_ERROR([either gold or ld can be the default ld])
375 fi
376 ;;
377 yes)
378 ;;
379 no)
380 if test x${ENABLE_GOLD} != xyes; then
381 AC_MSG_WARN([neither ld nor gold are enabled])
382 fi
383 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
384 ;;
385 *)
386 AC_MSG_ERROR([invalid --enable-ld argument])
387 ;;
388 esac
390 # PR gas/19109
391 # Decide the default method for compressing debug sections.
392 # Provide a configure time option to override our default.
393 AC_ARG_ENABLE(compressed_debug_sections,
394 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
395 [Enable compressed debug sections for gas, gold or ld by
396 default])],
397 [
398 if test x"$enable_compressed_debug_sections" = xyes; then
399 AC_MSG_ERROR([no program with compressed debug sections specified])
400 fi
401 ], [enable_compressed_debug_sections=])
403 # Configure extra directories which are host specific
405 case "${host}" in
406 *-cygwin*)
407 configdirs="$configdirs libtermcap" ;;
408 esac
410 # A target can indicate whether a language isn't supported for some reason.
411 # Only spaces may be used in this macro; not newlines or tabs.
412 unsupported_languages=
414 # Remove more programs from consideration, based on the host or
415 # target this usually means that a port of the program doesn't
416 # exist yet.
418 case "${host}" in
419 i[[3456789]]86-*-msdosdjgpp*)
420 noconfigdirs="$noconfigdirs tcl tk itcl"
421 ;;
422 esac
425 AC_ARG_ENABLE(libquadmath,
426 AS_HELP_STRING([--disable-libquadmath],
427 [do not build libquadmath directory]),
428 ENABLE_LIBQUADMATH=$enableval,
429 ENABLE_LIBQUADMATH=yes)
430 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
431 noconfigdirs="$noconfigdirs target-libquadmath"
432 fi
435 AC_ARG_ENABLE(libquadmath-support,
436 AS_HELP_STRING([--disable-libquadmath-support],
437 [disable libquadmath support for Fortran]),
438 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
439 ENABLE_LIBQUADMATH_SUPPORT=yes)
440 enable_libquadmath_support=
441 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
442 enable_libquadmath_support=no
443 fi
446 AC_ARG_ENABLE(libada,
447 [AS_HELP_STRING([--enable-libada], [build libada directory])],
448 ENABLE_LIBADA=$enableval,
449 ENABLE_LIBADA=yes)
450 if test "${ENABLE_LIBADA}" != "yes" ; then
451 noconfigdirs="$noconfigdirs gnattools"
452 fi
454 AC_ARG_ENABLE(libssp,
455 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
456 ENABLE_LIBSSP=$enableval,
457 ENABLE_LIBSSP=yes)
459 AC_ARG_ENABLE(libstdcxx,
460 AS_HELP_STRING([--disable-libstdcxx],
461 [do not build libstdc++-v3 directory]),
462 ENABLE_LIBSTDCXX=$enableval,
463 ENABLE_LIBSTDCXX=default)
464 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
465 noconfigdirs="$noconfigdirs target-libstdc++-v3"
466 fi]
468 # If this is accelerator compiler and its target is intelmic we enable
469 # target liboffloadmic by default. If this is compiler with offloading
470 # for intelmic we enable host liboffloadmic by default. Otherwise
471 # liboffloadmic is disabled by default.
472 AC_ARG_ENABLE([liboffloadmic],
473 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
474 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
475 [case "$enableval" in
476 no | host | target)
477 enable_liboffloadmic=$enableval ;;
478 *)
479 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
480 esac],
481 [if test x"$enable_as_accelerator_for" != x; then
482 case "${target}" in
483 *-intelmic-* | *-intelmicemul-*)
484 enable_liboffloadmic=target
485 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
486 ;;
487 *)
488 enable_liboffloadmic=no
489 ;;
490 esac
491 else
492 case "${enable_offload_targets}" in
493 *-intelmic-* | *-intelmicemul-*)
494 enable_liboffloadmic=host
495 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
496 ;;
497 *)
498 enable_liboffloadmic=no
499 ;;
500 esac
501 fi])
502 AC_SUBST(extra_liboffloadmic_configure_flags)
504 # Enable libgomp by default on hosted POSIX systems, and a few others.
505 if test x$enable_libgomp = x ; then
506 case "${target}" in
507 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
508 ;;
509 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
510 ;;
511 *-*-solaris2* | *-*-hpux11*)
512 ;;
513 *-*-darwin* | *-*-aix*)
514 ;;
515 nvptx*-*-*)
516 ;;
517 *)
518 noconfigdirs="$noconfigdirs target-libgomp"
519 ;;
520 esac
521 fi
523 # Disable libatomic on unsupported systems.
524 if test -d ${srcdir}/libatomic; then
525 if test x$enable_libatomic = x; then
526 AC_MSG_CHECKING([for libatomic support])
527 if (srcdir=${srcdir}/libatomic; \
528 . ${srcdir}/configure.tgt; \
529 test -n "$UNSUPPORTED")
530 then
531 AC_MSG_RESULT([no])
532 noconfigdirs="$noconfigdirs target-libatomic"
533 else
534 AC_MSG_RESULT([yes])
535 fi
536 fi
537 fi
539 # Disable liboffloadmic on unsupported systems.
540 if test -d ${srcdir}/liboffloadmic; then
541 if test x$enable_liboffloadmic != xno; then
542 AC_MSG_CHECKING([for liboffloadmic support])
543 if (srcdir=${srcdir}/liboffloadmic; \
544 . ${srcdir}/configure.tgt; \
545 test -n "$UNSUPPORTED")
546 then
547 AC_MSG_RESULT([no])
548 noconfigdirs="$noconfigdirs target-liboffloadmic"
549 else
550 AC_MSG_RESULT([yes])
551 fi
552 fi
553 fi
555 # Disable libitm on unsupported systems.
556 if test -d ${srcdir}/libitm; then
557 if test x$enable_libitm = x; then
558 AC_MSG_CHECKING([for libitm support])
559 if (srcdir=${srcdir}/libitm; \
560 . ${srcdir}/configure.tgt; \
561 test -n "$UNSUPPORTED")
562 then
563 AC_MSG_RESULT([no])
564 noconfigdirs="$noconfigdirs target-libitm"
565 else
566 AC_MSG_RESULT([yes])
567 fi
568 fi
569 fi
571 # Disable libsanitizer on unsupported systems.
572 if test -d ${srcdir}/libsanitizer; then
573 if test x$enable_libsanitizer = x; then
574 AC_MSG_CHECKING([for libsanitizer support])
575 if (srcdir=${srcdir}/libsanitizer; \
576 . ${srcdir}/configure.tgt; \
577 test -n "$UNSUPPORTED")
578 then
579 AC_MSG_RESULT([no])
580 noconfigdirs="$noconfigdirs target-libsanitizer"
581 else
582 AC_MSG_RESULT([yes])
583 fi
584 fi
585 fi
587 # Disable libvtv on unsupported systems.
588 if test -d ${srcdir}/libvtv; then
589 if test x$enable_libvtv = x; then
590 AC_MSG_CHECKING([for libvtv support])
591 if (srcdir=${srcdir}/libvtv; \
592 . ${srcdir}/configure.tgt; \
593 test "$VTV_SUPPORTED" != "yes")
594 then
595 AC_MSG_RESULT([no])
596 noconfigdirs="$noconfigdirs target-libvtv"
597 else
598 AC_MSG_RESULT([yes])
599 fi
600 fi
601 fi
604 # Enable libmpx on supported systems by request.
605 if test -d ${srcdir}/libmpx; then
606 if test x$enable_libmpx = x; then
607 AC_MSG_CHECKING([for libmpx support])
608 if (srcdir=${srcdir}/libmpx; \
609 . ${srcdir}/configure.tgt; \
610 test "$LIBMPX_SUPPORTED" != "yes")
611 then
612 AC_MSG_RESULT([no])
613 noconfigdirs="$noconfigdirs target-libmpx"
614 else
615 AC_MSG_RESULT([yes])
616 fi
617 fi
618 fi
620 # Disable libhsail-rt on unsupported systems.
621 if test -d ${srcdir}/libhsail-rt; then
622 if test x$enable_libhsail_rt = x; then
623 AC_MSG_CHECKING([for libhsail-rt support])
624 if (srcdir=${srcdir}/libhsail-rt; \
625 . ${srcdir}/configure.tgt; \
626 test -n "$UNSUPPORTED")
627 then
628 AC_MSG_RESULT([no])
629 unsupported_languages="$unsupported_languages brig"
630 # This implicitly disables also target-libhsail-rt as it won't
631 # get added to the build without BRIG FE.
632 else
633 AC_MSG_RESULT([yes])
634 fi
635 fi
636 fi
639 # Disable libquadmath for some systems.
640 case "${target}" in
641 avr-*-*)
642 noconfigdirs="$noconfigdirs target-libquadmath"
643 ;;
644 # libquadmath is unused on AIX and libquadmath build process use of
645 # LD_LIBRARY_PATH can break AIX bootstrap.
646 powerpc-*-aix* | rs6000-*-aix*)
647 noconfigdirs="$noconfigdirs target-libquadmath"
648 ;;
649 esac
651 # Disable libssp for some systems.
652 case "${target}" in
653 avr-*-*)
654 # No hosted I/O support.
655 noconfigdirs="$noconfigdirs target-libssp"
656 ;;
657 powerpc-*-aix* | rs6000-*-aix*)
658 noconfigdirs="$noconfigdirs target-libssp"
659 ;;
660 rl78-*-*)
661 # libssp uses a misaligned load to trigger a fault, but the RL78
662 # doesn't fault for those - instead, it gives a build-time error
663 # for explicit misaligned loads.
664 noconfigdirs="$noconfigdirs target-libssp"
665 ;;
666 visium-*-*)
667 # No hosted I/O support.
668 noconfigdirs="$noconfigdirs target-libssp"
669 ;;
670 esac
672 # Disable libstdc++-v3 for some systems.
673 # Allow user to override this if they pass --enable-libstdc++-v3
674 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
675 case "${target}" in
676 *-*-vxworks*)
677 # VxWorks uses the Dinkumware C++ library.
678 noconfigdirs="$noconfigdirs target-libstdc++-v3"
679 ;;
680 arm*-wince-pe*)
681 # the C++ libraries don't build on top of CE's C libraries
682 noconfigdirs="$noconfigdirs target-libstdc++-v3"
683 ;;
684 avr-*-*)
685 noconfigdirs="$noconfigdirs target-libstdc++-v3"
686 ;;
687 ft32-*-*)
688 noconfigdirs="$noconfigdirs target-libstdc++-v3"
689 ;;
690 esac
691 fi
693 # Disable Fortran for some systems.
694 case "${target}" in
695 mmix-*-*)
696 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
697 unsupported_languages="$unsupported_languages fortran"
698 ;;
699 esac
701 # Disable libffi for some systems.
702 case "${target}" in
703 powerpc-*-darwin*)
704 ;;
705 i[[3456789]]86-*-darwin*)
706 ;;
707 x86_64-*-darwin[[912]]*)
708 ;;
709 *-*-darwin*)
710 noconfigdirs="$noconfigdirs target-libffi"
711 ;;
712 *-*-netware*)
713 noconfigdirs="$noconfigdirs target-libffi"
714 ;;
715 *-*-phoenix*)
716 noconfigdirs="$noconfigdirs target-libffi"
717 ;;
718 *-*-rtems*)
719 noconfigdirs="$noconfigdirs target-libffi"
720 ;;
721 *-*-tpf*)
722 noconfigdirs="$noconfigdirs target-libffi"
723 ;;
724 *-*-uclinux*)
725 noconfigdirs="$noconfigdirs target-libffi"
726 ;;
727 *-*-vxworks*)
728 noconfigdirs="$noconfigdirs target-libffi"
729 ;;
730 aarch64*-*-freebsd*)
731 noconfigdirs="$noconfigdirs target-libffi"
732 ;;
733 alpha*-*-*vms*)
734 noconfigdirs="$noconfigdirs target-libffi"
735 ;;
736 arm*-*-freebsd*)
737 noconfigdirs="$noconfigdirs target-libffi"
738 ;;
739 arm-wince-pe)
740 noconfigdirs="$noconfigdirs target-libffi"
741 ;;
742 arm*-*-symbianelf*)
743 noconfigdirs="$noconfigdirs target-libffi"
744 ;;
745 cris-*-* | crisv32-*-*)
746 case "${target}" in
747 *-*-linux*)
748 ;;
749 *) # See PR46792 regarding target-libffi.
750 noconfigdirs="$noconfigdirs target-libffi";;
751 esac
752 ;;
753 hppa*64*-*-hpux*)
754 noconfigdirs="$noconfigdirs target-libffi"
755 ;;
756 hppa*-hp-hpux11*)
757 ;;
758 hppa*-*-hpux*)
759 noconfigdirs="$noconfigdirs target-libffi"
760 ;;
761 ia64*-*-*vms*)
762 noconfigdirs="$noconfigdirs target-libffi"
763 ;;
764 i[[3456789]]86-w64-mingw*)
765 noconfigdirs="$noconfigdirs target-libffi"
766 ;;
767 i[[3456789]]86-*-mingw*)
768 noconfigdirs="$noconfigdirs target-libffi"
769 ;;
770 x86_64-*-mingw*)
771 noconfigdirs="$noconfigdirs target-libffi"
772 ;;
773 mmix-*-*)
774 noconfigdirs="$noconfigdirs target-libffi"
775 ;;
776 powerpc-*-aix*)
777 ;;
778 rs6000-*-aix*)
779 ;;
780 ft32-*-*)
781 noconfigdirs="$noconfigdirs target-libffi"
782 ;;
783 *-*-lynxos*)
784 noconfigdirs="$noconfigdirs target-libffi"
785 ;;
786 esac
788 # Disable the go frontend on systems where it is known to not work. Please keep
789 # this in sync with contrib/config-list.mk.
790 case "${target}" in
791 *-*-darwin* | *-*-cygwin* | *-*-mingw*)
792 unsupported_languages="$unsupported_languages go"
793 ;;
794 esac
796 # Disable libgo for some systems where it is known to not work.
797 # For testing, you can easily override this with --enable-libgo.
798 if test x$enable_libgo = x; then
799 case "${target}" in
800 *-*-darwin*)
801 # PR 46986
802 noconfigdirs="$noconfigdirs target-libgo"
803 ;;
804 *-*-cygwin* | *-*-mingw*)
805 noconfigdirs="$noconfigdirs target-libgo"
806 ;;
807 esac
808 fi
810 # Default libgloss CPU subdirectory.
811 libgloss_dir="$target_cpu"
813 case "${target}" in
814 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
815 libgloss_dir=wince
816 ;;
817 aarch64*-*-* )
818 libgloss_dir=aarch64
819 ;;
820 arm*-*-*)
821 libgloss_dir=arm
822 ;;
823 cris-*-* | crisv32-*-*)
824 libgloss_dir=cris
825 ;;
826 hppa*-*-*)
827 libgloss_dir=pa
828 ;;
829 i[[3456789]]86-*-*)
830 libgloss_dir=i386
831 ;;
832 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
833 libgloss_dir=m68hc11
834 ;;
835 m68*-*-* | fido-*-*)
836 libgloss_dir=m68k
837 ;;
838 mips*-*-*)
839 libgloss_dir=mips
840 ;;
841 powerpc*-*-*)
842 libgloss_dir=rs6000
843 ;;
844 sparc*-*-*)
845 libgloss_dir=sparc
846 ;;
847 esac
849 # Disable newlib and libgloss for various target OSes.
850 case "${target}" in
851 alpha*-dec-osf*)
852 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
853 ;;
854 i[[3456789]]86-*-linux*)
855 # This section makes it possible to build newlib natively on linux.
856 # If we are using a cross compiler then don't configure newlib.
857 if test x${is_cross_compiler} != xno ; then
858 noconfigdirs="$noconfigdirs target-newlib"
859 fi
860 noconfigdirs="$noconfigdirs target-libgloss"
861 # If we are not using a cross compiler, do configure newlib.
862 # Note however, that newlib will only be configured in this situation
863 # if the --with-newlib option has been given, because otherwise
864 # 'target-newlib' will appear in skipdirs.
865 ;;
866 i[[3456789]]86-*-rdos*)
867 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
868 ;;
869 sh*-*-pe|mips*-*-pe|arm-wince-pe)
870 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
871 ;;
872 sparc-*-sunos4*)
873 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
874 ;;
875 *-*-aix*)
876 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
877 ;;
878 *-*-beos*)
879 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
880 ;;
881 *-*-chorusos)
882 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
883 ;;
884 *-*-dragonfly*)
885 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
886 ;;
887 *-*-freebsd*)
888 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
889 ;;
890 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
891 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
892 ;;
893 *-*-lynxos*)
894 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
895 ;;
896 *-*-mingw*)
897 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
898 ;;
899 *-*-netbsd*)
900 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
901 ;;
902 *-*-netware*)
903 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
904 ;;
905 *-*-tpf*)
906 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
907 ;;
908 *-*-uclinux*)
909 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
910 ;;
911 *-*-vxworks*)
912 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
913 ;;
914 esac
916 case "${target}" in
917 *-*-chorusos)
918 ;;
919 aarch64-*-darwin*)
920 noconfigdirs="$noconfigdirs ld gas gdb gprof"
921 noconfigdirs="$noconfigdirs sim target-rda"
922 ;;
923 arm-*-darwin*)
924 noconfigdirs="$noconfigdirs ld gas gdb gprof"
925 noconfigdirs="$noconfigdirs sim target-rda"
926 ;;
927 powerpc-*-darwin*)
928 noconfigdirs="$noconfigdirs ld gas gdb gprof"
929 noconfigdirs="$noconfigdirs sim target-rda"
930 ;;
931 i[[3456789]]86-*-darwin*)
932 noconfigdirs="$noconfigdirs ld gprof"
933 noconfigdirs="$noconfigdirs sim target-rda"
934 ;;
935 x86_64-*-darwin[[912]]*)
936 noconfigdirs="$noconfigdirs ld gas gprof"
937 noconfigdirs="$noconfigdirs sim target-rda"
938 ;;
939 *-*-darwin*)
940 noconfigdirs="$noconfigdirs ld gas gdb gprof"
941 noconfigdirs="$noconfigdirs sim target-rda"
942 ;;
943 *-*-dragonfly*)
944 ;;
945 *-*-freebsd*)
946 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
947 && test -f /usr/local/include/gmp.h; then
948 with_gmp=/usr/local
949 fi
950 ;;
951 *-*-kaos*)
952 # Remove unsupported stuff on all kaOS configurations.
953 noconfigdirs="$noconfigdirs target-libgloss"
954 ;;
955 *-*-netbsd*)
956 ;;
957 *-*-netware*)
958 ;;
959 *-*-phoenix*)
960 noconfigdirs="$noconfigdirs target-libgloss"
961 ;;
962 *-*-rtems*)
963 noconfigdirs="$noconfigdirs target-libgloss"
964 # this is not caught below because this stanza matches earlier
965 case $target in
966 or1k*-*-*) noconfigdirs="$noconfigdirs gdb" ;;
967 esac
968 ;;
969 # The tpf target doesn't support gdb yet.
970 *-*-tpf*)
971 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
972 ;;
973 *-*-uclinux*)
974 noconfigdirs="$noconfigdirs target-rda"
975 ;;
976 *-*-vxworks*)
977 ;;
978 alpha*-dec-osf*)
979 # ld works, but does not support shared libraries.
980 # gas doesn't generate exception information.
981 noconfigdirs="$noconfigdirs gas ld"
982 ;;
983 alpha*-*-*vms*)
984 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
985 ;;
986 alpha*-*-*)
987 # newlib is not 64 bit ready
988 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
989 ;;
990 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
991 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
992 ;;
993 arc*-*-*)
994 noconfigdirs="$noconfigdirs sim"
995 ;;
996 arm-*-pe*)
997 noconfigdirs="$noconfigdirs target-libgloss"
998 ;;
999 arm-*-riscix*)
1000 noconfigdirs="$noconfigdirs ld target-libgloss"
1001 ;;
1002 avr-*-*)
1003 if test x${with_avrlibc} != xno; then
1004 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1005 fi
1006 ;;
1007 c4x-*-* | tic4x-*-*)
1008 noconfigdirs="$noconfigdirs target-libgloss"
1009 ;;
1010 tic54x-*-*)
1011 noconfigdirs="$noconfigdirs target-libgloss gdb"
1012 ;;
1013 d10v-*-*)
1014 noconfigdirs="$noconfigdirs target-libgloss"
1015 ;;
1016 d30v-*-*)
1017 noconfigdirs="$noconfigdirs gdb"
1018 ;;
1019 fr30-*-elf*)
1020 noconfigdirs="$noconfigdirs gdb"
1021 ;;
1022 ft32-*-*)
1023 noconfigdirs="$noconfigdirs target-rda gprof"
1024 ;;
1025 moxie-*-*)
1026 noconfigdirs="$noconfigdirs"
1027 ;;
1028 h8300*-*-*)
1029 noconfigdirs="$noconfigdirs target-libgloss"
1030 ;;
1031 h8500-*-*)
1032 noconfigdirs="$noconfigdirs target-libgloss"
1033 ;;
1034 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1035 ;;
1036 hppa*64*-*-hpux*)
1037 noconfigdirs="$noconfigdirs gdb"
1038 ;;
1039 hppa*-*-hpux11*)
1040 noconfigdirs="$noconfigdirs gdb ld"
1041 ;;
1042 hppa*64*-*-linux*)
1043 ;;
1044 hppa*-*-linux*)
1045 ;;
1046 hppa*-*-*elf* | \
1047 hppa*-*-lites* | \
1048 hppa*-*-openbsd* | \
1049 hppa*64*-*-*)
1050 ;;
1051 hppa*-*-pro*)
1052 ;;
1053 hppa*-*-*)
1054 noconfigdirs="$noconfigdirs ld"
1055 ;;
1056 i960-*-*)
1057 noconfigdirs="$noconfigdirs gdb"
1058 ;;
1059 ia64*-*-elf*)
1060 # No gdb support yet.
1061 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1062 ;;
1063 ia64*-**-hpux*)
1064 # No ld support yet.
1065 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1066 ;;
1067 ia64*-*-*vms*)
1068 # No ld support yet.
1069 noconfigdirs="$noconfigdirs libgui itcl ld"
1070 ;;
1071 i[[3456789]]86-w64-mingw*)
1072 ;;
1073 i[[3456789]]86-*-mingw*)
1074 target_configdirs="$target_configdirs target-winsup"
1075 ;;
1076 *-*-cygwin*)
1077 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1078 noconfigdirs="$noconfigdirs target-libgloss"
1079 # always build newlib if winsup directory is present.
1080 if test -d "$srcdir/winsup/cygwin"; then
1081 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1082 elif test -d "$srcdir/newlib"; then
1083 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1084 fi
1085 ;;
1086 i[[3456789]]86-*-pe)
1087 noconfigdirs="$noconfigdirs target-libgloss"
1088 ;;
1089 i[[3456789]]86-*-sco3.2v5*)
1090 # The linker does not yet know about weak symbols in COFF,
1091 # and is not configured to handle mixed ELF and COFF.
1092 noconfigdirs="$noconfigdirs ld target-libgloss"
1093 ;;
1094 i[[3456789]]86-*-sco*)
1095 noconfigdirs="$noconfigdirs gprof target-libgloss"
1096 ;;
1097 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1098 noconfigdirs="$noconfigdirs target-libgloss"
1099 ;;
1100 i[[3456789]]86-*-sysv4*)
1101 noconfigdirs="$noconfigdirs target-libgloss"
1102 ;;
1103 i[[3456789]]86-*-beos*)
1104 noconfigdirs="$noconfigdirs gdb"
1105 ;;
1106 i[[3456789]]86-*-rdos*)
1107 noconfigdirs="$noconfigdirs gdb"
1108 ;;
1109 mmix-*-*)
1110 noconfigdirs="$noconfigdirs gdb"
1111 ;;
1112 mt-*-*)
1113 noconfigdirs="$noconfigdirs sim"
1114 ;;
1115 powerpc-*-aix*)
1116 # copied from rs6000-*-* entry
1117 noconfigdirs="$noconfigdirs gprof"
1118 ;;
1119 powerpc*-*-winnt* | powerpc*-*-pe*)
1120 target_configdirs="$target_configdirs target-winsup"
1121 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1122 # always build newlib.
1123 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1124 ;;
1125 # This is temporary until we can link against shared libraries
1126 powerpcle-*-solaris*)
1127 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1128 ;;
1129 powerpc-*-beos*)
1130 noconfigdirs="$noconfigdirs gdb"
1131 ;;
1132 rs6000-*-lynxos*)
1133 noconfigdirs="$noconfigdirs gprof"
1134 ;;
1135 rs6000-*-aix*)
1136 noconfigdirs="$noconfigdirs gprof"
1137 ;;
1138 rs6000-*-*)
1139 noconfigdirs="$noconfigdirs gprof"
1140 ;;
1141 m68k-apollo-*)
1142 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1143 ;;
1144 microblaze*)
1145 noconfigdirs="$noconfigdirs gprof"
1146 ;;
1147 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1148 if test x$with_newlib = xyes; then
1149 noconfigdirs="$noconfigdirs gprof"
1150 fi
1151 ;;
1152 mips*-*-irix5*)
1153 noconfigdirs="$noconfigdirs gprof target-libgloss"
1154 ;;
1155 mips*-*-irix6*)
1156 noconfigdirs="$noconfigdirs gprof target-libgloss"
1157 ;;
1158 mips*-*-bsd*)
1159 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1160 ;;
1161 mips*-*-linux*)
1162 ;;
1163 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1164 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1165 noconfigdirs="$noconfigdirs ld gas gprof"
1166 ;;
1167 mips*-*-*)
1168 noconfigdirs="$noconfigdirs gprof"
1169 ;;
1170 nvptx*-*-*)
1171 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1172 ;;
1173 or1k*-*-*)
1174 noconfigdirs="$noconfigdirs gdb"
1175 ;;
1176 sh-*-*)
1177 case "${target}" in
1178 sh*-*-elf)
1179 ;;
1180 *)
1181 noconfigdirs="$noconfigdirs target-libgloss" ;;
1182 esac
1183 ;;
1184 sparc-*-sunos4*)
1185 if test x${is_cross_compiler} = xno ; then
1186 use_gnu_ld=no
1187 fi
1188 ;;
1189 tic6x-*-*)
1190 noconfigdirs="$noconfigdirs sim"
1191 ;;
1192 tilepro*-*-* | tilegx*-*-*)
1193 noconfigdirs="$noconfigdirs sim"
1194 ;;
1195 v810-*-*)
1196 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1197 ;;
1198 vax-*-*)
1199 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1200 ;;
1201 esac
1203 # If we aren't building newlib, then don't build libgloss, since libgloss
1204 # depends upon some newlib header files.
1205 case "${noconfigdirs}" in
1206 *target-libgloss*) ;;
1207 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1208 esac
1210 # Work in distributions that contain no compiler tools, like Autoconf.
1211 host_makefile_frag=/dev/null
1212 if test -d ${srcdir}/config ; then
1213 case "${host}" in
1214 i[[3456789]]86-*-msdosdjgpp*)
1215 host_makefile_frag="config/mh-djgpp"
1216 ;;
1217 *-cygwin*)
1218 ACX_CHECK_CYGWIN_CAT_WORKS
1219 host_makefile_frag="config/mh-cygwin"
1220 ;;
1221 *-mingw*)
1222 host_makefile_frag="config/mh-mingw"
1223 ;;
1224 alpha*-linux*)
1225 host_makefile_frag="config/mh-alpha-linux"
1226 ;;
1227 hppa*-hp-hpux10*)
1228 host_makefile_frag="config/mh-pa-hpux10"
1229 ;;
1230 hppa*-hp-hpux*)
1231 host_makefile_frag="config/mh-pa"
1232 ;;
1233 hppa*-*)
1234 host_makefile_frag="config/mh-pa"
1235 ;;
1236 *-*-darwin*)
1237 host_makefile_frag="config/mh-darwin"
1238 ;;
1239 powerpc-*-aix*)
1240 host_makefile_frag="config/mh-ppc-aix"
1241 ;;
1242 rs6000-*-aix*)
1243 host_makefile_frag="config/mh-ppc-aix"
1244 ;;
1245 esac
1246 fi
1248 if test "${build}" != "${host}" ; then
1249 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1250 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1251 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1252 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1253 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1254 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1255 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1256 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1257 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1258 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1259 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1260 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1261 else
1262 AR_FOR_BUILD="\$(AR)"
1263 AS_FOR_BUILD="\$(AS)"
1264 CC_FOR_BUILD="\$(CC)"
1265 CXX_FOR_BUILD="\$(CXX)"
1266 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1267 GOC_FOR_BUILD="\$(GOC)"
1268 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1269 LD_FOR_BUILD="\$(LD)"
1270 NM_FOR_BUILD="\$(NM)"
1271 RANLIB_FOR_BUILD="\$(RANLIB)"
1272 WINDRES_FOR_BUILD="\$(WINDRES)"
1273 WINDMC_FOR_BUILD="\$(WINDMC)"
1274 fi
1276 AC_PROG_CC
1277 AC_PROG_CXX
1279 # We must set the default linker to the linker used by gcc for the correct
1280 # operation of libtool. If LD is not defined and we are using gcc, try to
1281 # set the LD default to the ld used by gcc.
1282 if test -z "$LD"; then
1283 if test "$GCC" = yes; then
1284 case $build in
1285 *-*-mingw*)
1286 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1287 *)
1288 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1289 esac
1290 case $gcc_prog_ld in
1291 # Accept absolute paths.
1292 [[\\/]* | [A-Za-z]:[\\/]*)]
1293 LD="$gcc_prog_ld" ;;
1294 esac
1295 fi
1296 fi
1298 # Check whether -static-libstdc++ -static-libgcc is supported.
1299 have_static_libs=no
1300 if test "$GCC" = yes; then
1301 saved_LDFLAGS="$LDFLAGS"
1303 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1304 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1305 AC_LANG_PUSH(C++)
1306 AC_LINK_IFELSE([
1307 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1308 #error -static-libstdc++ not implemented
1309 #endif
1310 int main() {}],
1311 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1312 [AC_MSG_RESULT([no])])
1313 AC_LANG_POP(C++)
1315 LDFLAGS="$saved_LDFLAGS"
1316 fi
1318 ACX_PROG_GNAT
1319 ACX_PROG_CMP_IGNORE_INITIAL
1321 AC_ARG_ENABLE([bootstrap],
1322 [AS_HELP_STRING([--enable-bootstrap],
1323 [enable bootstrapping @<:@yes if native build@:>@])],,
1324 enable_bootstrap=default)
1326 # Issue errors and warnings for invalid/strange bootstrap combinations.
1327 if test -r $srcdir/gcc/configure; then
1328 have_compiler=yes
1329 else
1330 have_compiler=no
1331 fi
1333 case "$have_compiler:$host:$target:$enable_bootstrap" in
1334 *:*:*:no) ;;
1336 # Default behavior. Enable bootstrap if we have a compiler
1337 # and we are in a native configuration.
1338 yes:$build:$build:default)
1339 enable_bootstrap=yes ;;
1341 *:*:*:default)
1342 enable_bootstrap=no ;;
1344 # We have a compiler and we are in a native configuration, bootstrap is ok
1345 yes:$build:$build:yes)
1346 ;;
1348 # Other configurations, but we have a compiler. Assume the user knows
1349 # what he's doing.
1350 yes:*:*:yes)
1351 AC_MSG_WARN([trying to bootstrap a cross compiler])
1352 ;;
1354 # No compiler: if they passed --enable-bootstrap explicitly, fail
1355 no:*:*:yes)
1356 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1358 # Fail if wrong command line
1359 *)
1360 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1361 ;;
1362 esac
1364 # When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1365 # C++98 compiler can still start the bootstrap.
1366 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1367 CXX="$CXX -std=gnu++98"
1368 fi
1370 # Used for setting $lt_cv_objdir
1371 _LT_CHECK_OBJDIR
1373 # Check for GMP, MPFR and MPC
1374 gmplibs="-lmpc -lmpfr -lgmp"
1375 gmpinc=
1376 have_gmp=no
1378 # Specify a location for mpc
1379 # check for this first so it ends up on the link line before mpfr.
1380 AC_ARG_WITH(mpc,
1381 [AS_HELP_STRING([--with-mpc=PATH],
1382 [specify prefix directory for installed MPC package.
1383 Equivalent to --with-mpc-include=PATH/include
1384 plus --with-mpc-lib=PATH/lib])])
1385 AC_ARG_WITH(mpc-include,
1386 [AS_HELP_STRING([--with-mpc-include=PATH],
1387 [specify directory for installed MPC include files])])
1388 AC_ARG_WITH(mpc-lib,
1389 [AS_HELP_STRING([--with-mpc-lib=PATH],
1390 [specify directory for the installed MPC library])])
1392 if test "x$with_mpc" != x; then
1393 gmplibs="-L$with_mpc/lib $gmplibs"
1394 gmpinc="-I$with_mpc/include $gmpinc"
1395 fi
1396 if test "x$with_mpc_include" != x; then
1397 gmpinc="-I$with_mpc_include $gmpinc"
1398 fi
1399 if test "x$with_mpc_lib" != x; then
1400 gmplibs="-L$with_mpc_lib $gmplibs"
1401 fi
1402 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1403 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1404 gmpinc='-I$$s/mpc/src '"$gmpinc"
1405 # Do not test the mpc version. Assume that it is sufficient, since
1406 # it is in the source tree, and the library has not been built yet
1407 # but it would be included on the link line in the version check below
1408 # hence making the test fail.
1409 have_gmp=yes
1410 fi
1412 # Specify a location for mpfr
1413 # check for this first so it ends up on the link line before gmp.
1414 AC_ARG_WITH(mpfr-dir,
1415 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1416 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1417 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1419 AC_ARG_WITH(mpfr,
1420 [AS_HELP_STRING([--with-mpfr=PATH],
1421 [specify prefix directory for installed MPFR package.
1422 Equivalent to --with-mpfr-include=PATH/include
1423 plus --with-mpfr-lib=PATH/lib])])
1424 AC_ARG_WITH(mpfr-include,
1425 [AS_HELP_STRING([--with-mpfr-include=PATH],
1426 [specify directory for installed MPFR include files])])
1427 AC_ARG_WITH(mpfr-lib,
1428 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1429 [specify directory for the installed MPFR library])])
1431 if test "x$with_mpfr" != x; then
1432 gmplibs="-L$with_mpfr/lib $gmplibs"
1433 gmpinc="-I$with_mpfr/include $gmpinc"
1434 fi
1435 if test "x$with_mpfr_include" != x; then
1436 gmpinc="-I$with_mpfr_include $gmpinc"
1437 fi
1438 if test "x$with_mpfr_lib" != x; then
1439 gmplibs="-L$with_mpfr_lib $gmplibs"
1440 fi
1441 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1442 # MPFR v3.1.0 moved the sources into a src sub-directory.
1443 if ! test -d ${srcdir}/mpfr/src; then
1444 AC_MSG_ERROR([dnl
1445 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1446 fi
1447 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1448 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1449 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1450 # Do not test the mpfr version. Assume that it is sufficient, since
1451 # it is in the source tree, and the library has not been built yet
1452 # but it would be included on the link line in the version check below
1453 # hence making the test fail.
1454 have_gmp=yes
1455 fi
1457 # Specify a location for gmp
1458 AC_ARG_WITH(gmp-dir,
1459 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1460 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1461 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1463 AC_ARG_WITH(gmp,
1464 [AS_HELP_STRING([--with-gmp=PATH],
1465 [specify prefix directory for the installed GMP package.
1466 Equivalent to --with-gmp-include=PATH/include
1467 plus --with-gmp-lib=PATH/lib])])
1468 AC_ARG_WITH(gmp-include,
1469 [AS_HELP_STRING([--with-gmp-include=PATH],
1470 [specify directory for installed GMP include files])])
1471 AC_ARG_WITH(gmp-lib,
1472 [AS_HELP_STRING([--with-gmp-lib=PATH],
1473 [specify directory for the installed GMP library])])
1476 if test "x$with_gmp" != x; then
1477 gmplibs="-L$with_gmp/lib $gmplibs"
1478 gmpinc="-I$with_gmp/include $gmpinc"
1479 fi
1480 if test "x$with_gmp_include" != x; then
1481 gmpinc="-I$with_gmp_include $gmpinc"
1482 fi
1483 if test "x$with_gmp_lib" != x; then
1484 gmplibs="-L$with_gmp_lib $gmplibs"
1485 fi
1486 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1487 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1488 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1489 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1490 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1491 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1492 # Do not test the gmp version. Assume that it is sufficient, since
1493 # it is in the source tree, and the library has not been built yet
1494 # but it would be included on the link line in the version check below
1495 # hence making the test fail.
1496 have_gmp=yes
1497 fi
1499 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1500 have_gmp=yes
1501 saved_CFLAGS="$CFLAGS"
1502 CFLAGS="$CFLAGS $gmpinc"
1503 # Check for the recommended and required versions of GMP.
1504 AC_MSG_CHECKING([for the correct version of gmp.h])
1505 AC_TRY_COMPILE([#include "gmp.h"],[
1506 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1507 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1508 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1509 choke me
1510 #endif
1511 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1512 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1513 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1514 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1515 choke me
1516 #endif
1517 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1518 [AC_MSG_RESULT([no]); have_gmp=no])
1520 # If we have GMP, check the MPFR version.
1521 if test x"$have_gmp" = xyes; then
1522 # Check for the recommended and required versions of MPFR.
1523 AC_MSG_CHECKING([for the correct version of mpfr.h])
1524 AC_TRY_COMPILE([#include <gmp.h>
1525 #include <mpfr.h>],[
1526 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1527 choke me
1528 #endif
1529 ], [AC_TRY_COMPILE([#include <gmp.h>
1530 #include <mpfr.h>],[
1531 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1532 choke me
1533 #endif
1534 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1535 [AC_MSG_RESULT([no]); have_gmp=no])
1536 fi
1538 # Check for the MPC header version.
1539 if test x"$have_gmp" = xyes ; then
1540 # Check for the recommended and required versions of MPC.
1541 AC_MSG_CHECKING([for the correct version of mpc.h])
1542 AC_TRY_COMPILE([#include <mpc.h>],[
1543 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1544 choke me
1545 #endif
1546 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1547 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1548 choke me
1549 #endif
1550 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1551 [AC_MSG_RESULT([no]); have_gmp=no])
1552 fi
1554 # Now check the MPFR library.
1555 if test x"$have_gmp" = xyes; then
1556 saved_LIBS="$LIBS"
1557 LIBS="$LIBS $gmplibs"
1558 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1559 AC_TRY_LINK([#include <mpc.h>],[
1560 mpfr_t n;
1561 mpfr_t x;
1562 mpc_t c;
1563 int t;
1564 mpfr_init (n);
1565 mpfr_init (x);
1566 mpfr_atan2 (n, n, x, GMP_RNDN);
1567 mpfr_erfc (n, x, GMP_RNDN);
1568 mpfr_subnormalize (x, t, GMP_RNDN);
1569 mpfr_clear(n);
1570 mpfr_clear(x);
1571 mpc_init2 (c, 53);
1572 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1573 mpc_cosh (c, c, MPC_RNDNN);
1574 mpc_pow (c, c, c, MPC_RNDNN);
1575 mpc_acosh (c, c, MPC_RNDNN);
1576 mpc_clear (c);
1577 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1578 LIBS="$saved_LIBS"
1579 fi
1581 CFLAGS="$saved_CFLAGS"
1583 # The library versions listed in the error message below should match
1584 # the HARD-minimums enforced above.
1585 if test x$have_gmp != xyes; then
1586 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1587 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1588 their locations. Source code for these libraries can be found at
1589 their respective hosting sites as well as at
1590 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1591 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1592 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1593 make sure that you have installed both the libraries and the header
1594 files. They may be located in separate packages.])
1595 fi
1596 fi
1598 # Flags needed for both GMP, MPFR and/or MPC.
1599 AC_SUBST(gmplibs)
1600 AC_SUBST(gmpinc)
1601 AC_SUBST(extra_mpfr_configure_flags)
1602 AC_SUBST(extra_mpc_gmp_configure_flags)
1603 AC_SUBST(extra_mpc_mpfr_configure_flags)
1604 AC_SUBST(extra_isl_gmp_configure_flags)
1606 # Libraries to use for stage1 or when not bootstrapping.
1607 AC_ARG_WITH(stage1-libs,
1608 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1609 [if test "$withval" = "no" -o "$withval" = "yes"; then
1610 stage1_libs=
1611 else
1612 stage1_libs=$withval
1613 fi],
1614 [stage1_libs=])
1615 AC_SUBST(stage1_libs)
1617 # Linker flags to use for stage1 or when not bootstrapping.
1618 AC_ARG_WITH(stage1-ldflags,
1619 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1620 [if test "$withval" = "no" -o "$withval" = "yes"; then
1621 stage1_ldflags=
1622 else
1623 stage1_ldflags=$withval
1624 fi],
1625 [stage1_ldflags=
1626 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1627 # if supported. But if the user explicitly specified the libraries to use,
1628 # trust that they are doing what they want.
1629 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1630 stage1_ldflags="-static-libstdc++ -static-libgcc"
1631 fi])
1632 AC_SUBST(stage1_ldflags)
1634 # Libraries to use for stage2 and later builds.
1635 AC_ARG_WITH(boot-libs,
1636 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1637 [if test "$withval" = "no" -o "$withval" = "yes"; then
1638 poststage1_libs=
1639 else
1640 poststage1_libs=$withval
1641 fi],
1642 [poststage1_libs=])
1643 AC_SUBST(poststage1_libs)
1645 # Linker flags to use for stage2 and later builds.
1646 AC_ARG_WITH(boot-ldflags,
1647 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1648 [linker flags for stage2 and later])],
1649 [if test "$withval" = "no" -o "$withval" = "yes"; then
1650 poststage1_ldflags=
1651 else
1652 poststage1_ldflags=$withval
1653 fi],
1654 [poststage1_ldflags=
1655 # In stages 2 and 3, default to linking libstdc++ and libgcc
1656 # statically. But if the user explicitly specified the libraries to
1657 # use, trust that they are doing what they want.
1658 if test "$poststage1_libs" = ""; then
1659 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1660 fi])
1661 AC_SUBST(poststage1_ldflags)
1663 # GCC GRAPHITE dependency isl.
1664 # Basic setup is inlined here, actual checks are in config/isl.m4
1666 AC_ARG_WITH(isl,
1667 [AS_HELP_STRING(
1668 [--with-isl=PATH],
1669 [Specify prefix directory for the installed isl package.
1670 Equivalent to --with-isl-include=PATH/include
1671 plus --with-isl-lib=PATH/lib])])
1673 # Treat --without-isl as a request to disable
1674 # GRAPHITE support and skip all following checks.
1675 if test "x$with_isl" != "xno"; then
1676 # Check for isl
1677 dnl Provide configure switches and initialize islinc & isllibs
1678 dnl with user input.
1679 ISL_INIT_FLAGS
1680 dnl The versions of isl that work for Graphite
1681 ISL_CHECK_VERSION()
1682 dnl Only execute fail-action, if isl has been requested.
1683 ISL_IF_FAILED([
1684 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1685 fi
1687 # If the isl check failed, disable builds of in-tree variant of isl
1688 if test "x$with_isl" = xno ||
1689 test "x$gcc_cv_isl" = xno; then
1690 noconfigdirs="$noconfigdirs isl"
1691 islinc=
1692 fi
1694 AC_SUBST(isllibs)
1695 AC_SUBST(islinc)
1697 # Check for LTO support.
1698 AC_ARG_ENABLE(lto,
1699 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1700 enable_lto=$enableval,
1701 enable_lto=yes; default_enable_lto=yes)
1703 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1704 build_lto_plugin=yes
1705 ],[if test x"$default_enable_lto" = x"yes" ; then
1706 case $target in
1707 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1708 # On other non-ELF platforms, LTO has yet to be validated.
1709 *) enable_lto=no ;;
1710 esac
1711 else
1712 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1713 # It would also be nice to check the binutils support, but we don't
1714 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1715 # warn during gcc/ subconfigure; unless you're bootstrapping with
1716 # -flto it won't be needed until after installation anyway.
1717 case $target in
1718 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1719 *) if test x"$enable_lto" = x"yes"; then
1720 AC_MSG_ERROR([LTO support is not enabled for this target.])
1721 fi
1722 ;;
1723 esac
1724 fi
1725 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1726 # Build it unless LTO was explicitly disabled.
1727 case $target in
1728 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1729 *) ;;
1730 esac
1731 ])
1733 AC_ARG_ENABLE(linker-plugin-configure-flags,
1734 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1735 [additional flags for configuring linker plugins @<:@none@:>@])],
1736 extra_linker_plugin_configure_flags=$enableval,
1737 extra_linker_plugin_configure_flags=)
1738 AC_SUBST(extra_linker_plugin_configure_flags)
1739 AC_ARG_ENABLE(linker-plugin-flags,
1740 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1741 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1742 extra_linker_plugin_flags=$enableval,
1743 extra_linker_plugin_flags=)
1744 AC_SUBST(extra_linker_plugin_flags)
1746 # Enable --enable-host-shared.
1747 # Checked early to determine whether jit is an 'all' language
1748 AC_ARG_ENABLE(host-shared,
1749 [AS_HELP_STRING([--enable-host-shared],
1750 [build host code as shared libraries])],
1751 [host_shared=$enableval], [host_shared=no])
1752 AC_SUBST(host_shared)
1754 # By default, C and C++ are the only stage 1 languages.
1755 stage1_languages=,c,
1757 # Target libraries that we bootstrap.
1758 bootstrap_target_libs=,target-libgcc,
1760 # Figure out what language subdirectories are present.
1761 # Look if the user specified --enable-languages="..."; if not, use
1762 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1763 # go away some day.
1764 # NB: embedded tabs in this IF block -- do not untabify
1765 if test -d ${srcdir}/gcc; then
1766 if test x"${enable_languages+set}" != xset; then
1767 if test x"${LANGUAGES+set}" = xset; then
1768 enable_languages="${LANGUAGES}"
1769 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1770 else
1771 enable_languages=default
1772 fi
1773 else
1774 if test x"${enable_languages}" = x ||
1775 test x"${enable_languages}" = xyes;
1776 then
1777 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1778 exit 1
1779 fi
1780 fi
1781 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1783 # 'f95' is the old name for the 'fortran' language. We issue a warning
1784 # and make the substitution.
1785 case ,${enable_languages}, in
1786 *,f95,*)
1787 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1788 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1789 ;;
1790 esac
1792 # If bootstrapping, C++ must be enabled.
1793 case ",$enable_languages,:$enable_bootstrap" in
1794 *,c++,*:*) ;;
1795 *:yes)
1796 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1797 enable_languages="${enable_languages},c++"
1798 else
1799 AC_MSG_ERROR([bootstrapping requires c++ sources])
1800 fi
1801 ;;
1802 esac
1804 # First scan to see if an enabled language requires some other language.
1805 # We assume that a given config-lang.in will list all the language
1806 # front ends it requires, even if some are required indirectly.
1807 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1808 case ${lang_frag} in
1809 ..) ;;
1810 # The odd quoting in the next line works around
1811 # an apparent bug in bash 1.12 on linux.
1812 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1813 *)
1814 # From the config-lang.in, get $language, $lang_requires, and
1815 # $lang_requires_boot_languages.
1816 language=
1817 lang_requires=
1818 lang_requires_boot_languages=
1819 # set srcdir during sourcing lang_frag to the gcc dir.
1820 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1821 # polutes this shell
1822 saved_srcdir=${srcdir}
1823 srcdir=${srcdir}/gcc . ${lang_frag}
1824 srcdir=${saved_srcdir}
1825 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1826 case ,${enable_languages}, in
1827 *,$other,*) ;;
1828 *,default,*) ;;
1829 *,all,*) ;;
1830 *,$language,*)
1831 echo " \`$other' language required by \`$language'; enabling" 1>&2
1832 enable_languages="${enable_languages},${other}"
1833 ;;
1834 esac
1835 done
1836 for other in ${lang_requires_boot_languages} ; do
1837 if test "$other" != "c"; then
1838 case ,${enable_stage1_languages}, in
1839 *,$other,*) ;;
1840 *,default,*) ;;
1841 *,all,*) ;;
1842 *)
1843 case ,${enable_languages}, in
1844 *,$language,*)
1845 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1846 enable_stage1_languages="$enable_stage1_languages,${other}"
1847 ;;
1848 esac
1849 ;;
1850 esac
1851 fi
1852 done
1853 ;;
1854 esac
1855 done
1857 new_enable_languages=,c,
1859 # If LTO is enabled, add the LTO front end.
1860 if test "$enable_lto" = "yes" ; then
1861 case ,${enable_languages}, in
1862 *,lto,*) ;;
1863 *) enable_languages="${enable_languages},lto" ;;
1864 esac
1865 if test "${build_lto_plugin}" = "yes" ; then
1866 configdirs="$configdirs lto-plugin"
1867 fi
1868 fi
1870 # If we're building an offloading compiler, add the LTO front end.
1871 if test x"$enable_as_accelerator_for" != x ; then
1872 case ,${enable_languages}, in
1873 *,lto,*) ;;
1874 *) enable_languages="${enable_languages},lto" ;;
1875 esac
1876 fi
1878 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
1879 potential_languages=,c,
1881 enabled_target_libs=
1882 disabled_target_libs=
1884 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1885 case ${lang_frag} in
1886 ..) ;;
1887 # The odd quoting in the next line works around
1888 # an apparent bug in bash 1.12 on linux.
1889 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1890 *)
1891 # From the config-lang.in, get $language, $target_libs,
1892 # $lang_dirs, $boot_language, and $build_by_default
1893 language=
1894 target_libs=
1895 lang_dirs=
1896 subdir_requires=
1897 boot_language=no
1898 build_by_default=yes
1899 # set srcdir during sourcing. See above about save & restore
1900 saved_srcdir=${srcdir}
1901 srcdir=${srcdir}/gcc . ${lang_frag}
1902 srcdir=${saved_srcdir}
1903 if test x${language} = x; then
1904 echo "${lang_frag} doesn't set \$language." 1>&2
1905 exit 1
1906 fi
1908 if test "$language" = "c++"; then
1909 boot_language=yes
1910 fi
1912 add_this_lang=no
1913 # C is always enabled, so no need to add it again
1914 if test "$language" != "c"; then
1915 case ,${enable_languages}, in
1916 *,${language},*)
1917 # Language was explicitly selected; include it
1918 add_this_lang=yes
1919 ;;
1920 *,all,*)
1921 # All languages are enabled
1922 add_this_lang=all
1923 ;;
1924 *,default,*)
1925 # 'default' was selected, select it if it is a default language
1926 add_this_lang=${build_by_default}
1927 ;;
1928 esac
1929 fi
1931 # Disable languages that need other directories if these aren't available.
1932 for i in $subdir_requires; do
1933 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1934 case ${add_this_lang} in
1935 yes)
1936 # Specifically requested language; tell them.
1937 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1938 ;;
1939 all)
1940 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
1941 add_this_lang=unsupported
1942 ;;
1943 *)
1944 # Silently disable.
1945 add_this_lang=unsupported
1946 ;;
1947 esac
1948 done
1950 # Disable Ada if no preexisting GNAT is available.
1951 case ${add_this_lang}:${language}:${have_gnat} in
1952 yes:ada:no)
1953 # Specifically requested language; tell them.
1954 AC_MSG_ERROR([GNAT is required to build $language])
1955 ;;
1956 all:ada:no)
1957 AC_MSG_WARN([GNAT is required to build $language])
1958 add_this_lang=unsupported
1959 ;;
1960 *:ada:no)
1961 # Silently disable.
1962 add_this_lang=unsupported
1963 ;;
1964 esac
1966 # Disable jit if -enable-host-shared not specified
1967 case ${add_this_lang}:${language}:${host_shared} in
1968 yes:jit:no)
1969 # PR jit/64780: explicitly specify --enable-host-shared
1970 AC_MSG_ERROR([
1971 Enabling language "jit" requires --enable-host-shared.
1973 --enable-host-shared typically slows the rest of the compiler down by
1974 a few %, so you must explicitly enable it.
1976 If you want to build both the jit and the regular compiler, it is often
1977 best to do this via two separate configure/builds, in separate
1978 directories, to avoid imposing the performance cost of
1979 --enable-host-shared on the regular compiler.])
1980 ;;
1981 all:jit:no)
1982 AC_MSG_WARN([--enable-host-shared required to build $language])
1983 add_this_lang=unsupported
1984 ;;
1985 *:jit:no)
1986 # Silently disable.
1987 add_this_lang=unsupported
1988 ;;
1989 esac
1991 # Disable a language that is unsupported by the target.
1992 case "${add_this_lang}: $unsupported_languages " in
1993 no:*) ;;
1994 unsupported:*) ;;
1995 *:*" $language "*)
1996 AC_MSG_WARN([${language} not supported for this target])
1997 add_this_lang=unsupported
1998 ;;
1999 esac
2001 case $add_this_lang in
2002 unsupported)
2003 # Remove language-dependent dirs.
2004 disabled_target_libs="$disabled_target_libs $target_libs"
2005 noconfigdirs="$noconfigdirs $lang_dirs"
2006 ;;
2007 no)
2008 # Remove language-dependent dirs; still show language as supported.
2009 disabled_target_libs="$disabled_target_libs $target_libs"
2010 noconfigdirs="$noconfigdirs $lang_dirs"
2011 potential_languages="${potential_languages}${language},"
2012 ;;
2013 all|yes)
2014 new_enable_languages="${new_enable_languages}${language},"
2015 potential_languages="${potential_languages}${language},"
2016 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2017 enabled_target_libs="$enabled_target_libs $target_libs"
2018 case "${boot_language}:,$enable_stage1_languages," in
2019 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2020 # Add to (comma-separated) list of stage 1 languages.
2021 case ",$stage1_languages," in
2022 *,$language,* | ,yes, | ,all,) ;;
2023 *) stage1_languages="${stage1_languages}${language}," ;;
2024 esac
2025 # We need to bootstrap any supporting libraries.
2026 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2027 ;;
2028 esac
2029 ;;
2030 esac
2031 ;;
2032 esac
2033 done
2035 # Add target libraries which are only needed for disabled languages
2036 # to noconfigdirs.
2037 if test -n "$disabled_target_libs"; then
2038 for dir in $disabled_target_libs; do
2039 case " $enabled_target_libs " in
2040 *" ${dir} "*) ;;
2041 *) noconfigdirs="$noconfigdirs $dir" ;;
2042 esac
2043 done
2044 fi
2046 AC_ARG_ENABLE(stage1-languages,
2047 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2048 [choose additional languages to build during
2049 stage1. Mostly useful for compiler development])],
2050 [case ,${enable_stage1_languages}, in
2051 ,no,|,,)
2052 # Set it to something that will have no effect in the loop below
2053 enable_stage1_languages=c ;;
2054 ,yes,)
2055 enable_stage1_languages=`echo $new_enable_languages | \
2056 sed -e "s/^,//" -e "s/,$//" ` ;;
2057 *,all,*)
2058 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2059 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2060 esac
2062 # Add "good" languages from enable_stage1_languages to stage1_languages,
2063 # while "bad" languages go in missing_languages. Leave no duplicates.
2064 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2065 case $potential_languages in
2066 *,$i,*)
2067 case $stage1_languages in
2068 *,$i,*) ;;
2069 *) stage1_languages="$stage1_languages$i," ;;
2070 esac ;;
2071 *)
2072 case $missing_languages in
2073 *,$i,*) ;;
2074 *) missing_languages="$missing_languages$i," ;;
2075 esac ;;
2076 esac
2077 done])
2079 # Remove leading/trailing commas that were added for simplicity
2080 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2081 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2082 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2083 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2085 if test "x$missing_languages" != x; then
2086 AC_MSG_ERROR([
2087 The following requested languages could not be built: ${missing_languages}
2088 Supported languages are: ${potential_languages}])
2089 fi
2090 if test "x$new_enable_languages" != "x$enable_languages"; then
2091 echo The following languages will be built: ${new_enable_languages}
2092 enable_languages="$new_enable_languages"
2093 fi
2095 AC_SUBST(stage1_languages)
2096 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2097 fi
2099 # Handle --disable-<component> generically.
2100 for dir in $configdirs $build_configdirs $target_configdirs ; do
2101 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2102 varname=`echo $dirname | sed -e s/+/_/g`
2103 if eval test x\${enable_${varname}} "=" xno ; then
2104 noconfigdirs="$noconfigdirs $dir"
2105 fi
2106 done
2108 # Check for Boehm's garbage collector
2109 AC_ARG_ENABLE(objc-gc,
2110 [AS_HELP_STRING([--enable-objc-gc],
2111 [enable use of Boehm's garbage collector with the
2112 GNU Objective-C runtime])])
2113 AC_ARG_WITH([target-bdw-gc],
2114 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2115 [specify prefix directory for installed bdw-gc package.
2116 Equivalent to --with-target-bdw-gc-include=PATH/include
2117 plus --with-target-bdw-gc-lib=PATH/lib])])
2118 AC_ARG_WITH([target-bdw-gc-include],
2119 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2120 [specify directories for installed bdw-gc include files])])
2121 AC_ARG_WITH([target-bdw-gc-lib],
2122 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2123 [specify directories for installed bdw-gc library])])
2125 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2126 AC_MSG_CHECKING([for bdw garbage collector])
2127 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2128 dnl no bdw-gw options, assume default locations
2129 AC_MSG_RESULT([using bdw-gc in default locations])
2130 else
2131 dnl bdw-gw options, first error checking, complete checking in libobjc
2132 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2133 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2134 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2135 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2136 else
2137 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2138 fi
2139 fi
2140 esac
2142 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2143 case ,${enable_languages}, in
2144 *,c++,*)
2145 # Disable libitm, libsanitizer if we're not building libstdc++
2146 case "${noconfigdirs}" in
2147 *target-libstdc++-v3*)
2148 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2149 ;;
2150 *) ;;
2151 esac
2152 ;;
2153 *)
2154 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2155 ;;
2156 esac
2158 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2159 # $build_configdirs and $target_configdirs.
2160 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2162 notsupp=""
2163 for dir in . $skipdirs $noconfigdirs ; do
2164 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2165 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2166 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2167 if test -r $srcdir/$dirname/configure ; then
2168 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2169 true
2170 else
2171 notsupp="$notsupp $dir"
2172 fi
2173 fi
2174 fi
2175 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2176 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2177 if test -r $srcdir/$dirname/configure ; then
2178 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2179 true
2180 else
2181 notsupp="$notsupp $dir"
2182 fi
2183 fi
2184 fi
2185 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2186 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2187 if test -r $srcdir/$dirname/configure ; then
2188 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2189 true
2190 else
2191 notsupp="$notsupp $dir"
2192 fi
2193 fi
2194 fi
2195 done
2197 # Quietly strip out all directories which aren't configurable in this tree.
2198 # This relies on all configurable subdirectories being autoconfiscated, which
2199 # is now the case.
2200 build_configdirs_all="$build_configdirs"
2201 build_configdirs=
2202 for i in ${build_configdirs_all} ; do
2203 j=`echo $i | sed -e s/build-//g`
2204 if test -f ${srcdir}/$j/configure ; then
2205 build_configdirs="${build_configdirs} $i"
2206 fi
2207 done
2209 configdirs_all="$configdirs"
2210 configdirs=
2211 for i in ${configdirs_all} ; do
2212 if test -f ${srcdir}/$i/configure ; then
2213 configdirs="${configdirs} $i"
2214 fi
2215 done
2217 target_configdirs_all="$target_configdirs"
2218 target_configdirs=
2219 for i in ${target_configdirs_all} ; do
2220 j=`echo $i | sed -e s/target-//g`
2221 if test -f ${srcdir}/$j/configure ; then
2222 target_configdirs="${target_configdirs} $i"
2223 fi
2224 done
2226 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2227 # so we have to add it after the preceding checks.
2228 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2229 then
2230 case " $configdirs " in
2231 *" libiberty "*)
2232 # If we can build libiberty, we can also build libiberty-linker-plugin.
2233 configdirs="$configdirs libiberty-linker-plugin"
2234 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2235 --with-libiberty=../libiberty-linker-plugin";;
2236 *)
2237 AC_MSG_ERROR([libiberty missing]);;
2238 esac
2239 fi
2241 # Sometimes we have special requirements for the host libiberty.
2242 extra_host_libiberty_configure_flags=
2243 extra_host_zlib_configure_flags=
2244 case " $configdirs " in
2245 *" lto-plugin "* | *" libcc1 "*)
2246 # When these are to be built as shared libraries, the same applies to
2247 # libiberty.
2248 extra_host_libiberty_configure_flags=--enable-shared
2249 ;;
2250 *" bfd "*)
2251 # When bfd is to be built as a shared library, the same applies to
2252 # zlib.
2253 if test "$enable_shared" = "yes"; then
2254 extra_host_zlib_configure_flags=--enable-host-shared
2255 fi
2256 ;;
2257 esac
2258 AC_SUBST(extra_host_libiberty_configure_flags)
2259 AC_SUBST(extra_host_zlib_configure_flags)
2261 # Produce a warning message for the subdirs we can't configure.
2262 # This isn't especially interesting in the Cygnus tree, but in the individual
2263 # FSF releases, it's important to let people know when their machine isn't
2264 # supported by the one or two programs in a package.
2266 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2267 # If $appdirs is non-empty, at least one of those directories must still
2268 # be configured, or we error out. (E.g., if the gas release supports a
2269 # specified target in some subdirs but not the gas subdir, we shouldn't
2270 # pretend that all is well.)
2271 if test -n "$appdirs" ; then
2272 for dir in $appdirs ; do
2273 if test -r $dir/Makefile.in ; then
2274 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2275 appdirs=""
2276 break
2277 fi
2278 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2279 appdirs=""
2280 break
2281 fi
2282 fi
2283 done
2284 if test -n "$appdirs" ; then
2285 echo "*** This configuration is not supported by this package." 1>&2
2286 exit 1
2287 fi
2288 fi
2289 # Okay, some application will build, or we don't care to check. Still
2290 # notify of subdirs not getting built.
2291 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2292 echo " ${notsupp}" 1>&2
2293 echo " (Any other directories should still work fine.)" 1>&2
2294 fi
2296 case "$host" in
2297 *msdosdjgpp*)
2298 enable_gdbtk=no ;;
2299 esac
2301 # To find our prefix, in gcc_cv_tool_prefix.
2302 ACX_TOOL_DIRS
2304 copy_dirs=
2306 AC_ARG_WITH([build-sysroot],
2307 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2308 [use sysroot as the system root during the build])],
2309 [if test x"$withval" != x ; then
2310 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2311 fi],
2312 [SYSROOT_CFLAGS_FOR_TARGET=])
2313 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2315 AC_ARG_WITH([debug-prefix-map],
2316 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2317 [map A to B, C to D ... in debug information])],
2318 [if test x"$withval" != x; then
2319 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2320 for debug_map in $withval; do
2321 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2322 done
2323 fi],
2324 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2325 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2327 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2328 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2329 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2330 # We want to ensure that TARGET libraries (which we know are built with
2331 # gcc) are built with "-O2 -g", so include those options when setting
2332 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2333 if test "x$CFLAGS_FOR_TARGET" = x; then
2334 if test "x${is_cross_compiler}" = xyes; then
2335 CFLAGS_FOR_TARGET="-g -O2"
2336 else
2337 CFLAGS_FOR_TARGET=$CFLAGS
2338 case " $CFLAGS " in
2339 *" -O2 "*) ;;
2340 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2341 esac
2342 case " $CFLAGS " in
2343 *" -g "* | *" -g3 "*) ;;
2344 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2345 esac
2346 fi
2347 fi
2348 AC_SUBST(CFLAGS_FOR_TARGET)
2350 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2351 if test "x${is_cross_compiler}" = xyes; then
2352 CXXFLAGS_FOR_TARGET="-g -O2"
2353 else
2354 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2355 case " $CXXFLAGS " in
2356 *" -O2 "*) ;;
2357 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2358 esac
2359 case " $CXXFLAGS " in
2360 *" -g "* | *" -g3 "*) ;;
2361 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2362 esac
2363 fi
2364 fi
2365 AC_SUBST(CXXFLAGS_FOR_TARGET)
2367 AC_SUBST(LDFLAGS_FOR_TARGET)
2369 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2370 # the named directory are copied to $(tooldir)/sys-include.
2371 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2372 if test x${is_cross_compiler} = xno ; then
2373 echo 1>&2 '***' --with-headers is only supported when cross compiling
2374 exit 1
2375 fi
2376 if test x"${with_headers}" != xyes ; then
2377 x=${gcc_cv_tool_prefix}
2378 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2379 fi
2380 fi
2382 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2383 # the name directories are copied to $(tooldir)/lib. Multiple directories
2384 # are permitted.
2385 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2386 if test x${is_cross_compiler} = xno ; then
2387 echo 1>&2 '***' --with-libs is only supported when cross compiling
2388 exit 1
2389 fi
2390 if test x"${with_libs}" != xyes ; then
2391 # Copy the libraries in reverse order, so that files in the first named
2392 # library override files in subsequent libraries.
2393 x=${gcc_cv_tool_prefix}
2394 for l in ${with_libs}; do
2395 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2396 done
2397 fi
2398 fi
2400 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2401 #
2402 # This is done by determining whether or not the appropriate directory
2403 # is available, and by checking whether or not specific configurations
2404 # have requested that this magic not happen.
2405 #
2406 # The command line options always override the explicit settings in
2407 # configure.ac, and the settings in configure.ac override this magic.
2408 #
2409 # If the default for a toolchain is to use GNU as and ld, and you don't
2410 # want to do that, then you should use the --without-gnu-as and
2411 # --without-gnu-ld options for the configure script. Similarly, if
2412 # the default is to use the included zlib and you don't want to do that,
2413 # you should use the --with-system-zlib option for the configure script.
2415 if test x${use_gnu_as} = x &&
2416 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2417 with_gnu_as=yes
2418 extra_host_args="$extra_host_args --with-gnu-as"
2419 fi
2421 if test x${use_gnu_ld} = x &&
2422 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2423 with_gnu_ld=yes
2424 extra_host_args="$extra_host_args --with-gnu-ld"
2425 fi
2427 if test x${use_included_zlib} = x &&
2428 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2429 :
2430 else
2431 with_system_zlib=yes
2432 extra_host_args="$extra_host_args --with-system-zlib"
2433 fi
2435 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2436 # can detect this case.
2438 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2439 with_newlib=yes
2440 extra_host_args="$extra_host_args --with-newlib"
2441 fi
2443 # Handle ${copy_dirs}
2444 set fnord ${copy_dirs}
2445 shift
2446 while test $# != 0 ; do
2447 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2448 :
2449 else
2450 echo Copying $1 to $2
2452 # Use the install script to create the directory and all required
2453 # parent directories.
2454 if test -d $2 ; then
2455 :
2456 else
2457 echo >config.temp
2458 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2459 fi
2461 # Copy the directory, assuming we have tar.
2462 # FIXME: Should we use B in the second tar? Not all systems support it.
2463 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2465 # It is the responsibility of the user to correctly adjust all
2466 # symlinks. If somebody can figure out how to handle them correctly
2467 # here, feel free to add the code.
2469 echo $1 > $2/COPIED
2470 fi
2471 shift; shift
2472 done
2474 # Determine a target-dependent exec_prefix that the installed
2475 # gcc will search in. Keep this list sorted by triplet, with
2476 # the *-*-osname triplets last.
2477 md_exec_prefix=
2478 case "${target}" in
2479 i[[34567]]86-pc-msdosdjgpp*)
2480 md_exec_prefix=/dev/env/DJDIR/bin
2481 ;;
2482 *-*-hpux* | \
2483 *-*-nto-qnx* | \
2484 *-*-solaris2*)
2485 md_exec_prefix=/usr/ccs/bin
2486 ;;
2487 esac
2489 extra_arflags_for_target=
2490 extra_nmflags_for_target=
2491 extra_ranlibflags_for_target=
2492 target_makefile_frag=/dev/null
2493 case "${target}" in
2494 spu-*-*)
2495 target_makefile_frag="config/mt-spu"
2496 ;;
2497 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2498 target_makefile_frag="config/mt-sde"
2499 ;;
2500 mipsisa*-*-elfoabi*)
2501 target_makefile_frag="config/mt-mips-elfoabi"
2502 ;;
2503 mips*-*-*linux* | mips*-*-gnu*)
2504 target_makefile_frag="config/mt-mips-gnu"
2505 ;;
2506 nios2-*-elf*)
2507 target_makefile_frag="config/mt-nios2-elf"
2508 ;;
2509 *-*-linux-android*)
2510 target_makefile_frag="config/mt-android"
2511 ;;
2512 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2513 target_makefile_frag="config/mt-gnu"
2514 ;;
2515 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2516 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2517 # commands to handle both 32-bit and 64-bit objects. These flags are
2518 # harmless if we're using GNU nm or ar.
2519 extra_arflags_for_target=" -X32_64"
2520 extra_nmflags_for_target=" -B -X32_64"
2521 ;;
2522 esac
2524 alphaieee_frag=/dev/null
2525 case $target in
2526 alpha*-*-*)
2527 # This just makes sure to use the -mieee option to build target libs.
2528 # This should probably be set individually by each library.
2529 alphaieee_frag="config/mt-alphaieee"
2530 ;;
2531 esac
2533 # If --enable-target-optspace always use -Os instead of -O2 to build
2534 # the target libraries, similarly if it is not specified, use -Os
2535 # on selected platforms.
2536 ospace_frag=/dev/null
2537 case "${enable_target_optspace}:${target}" in
2538 yes:*)
2539 ospace_frag="config/mt-ospace"
2540 ;;
2541 :d30v-*)
2542 ospace_frag="config/mt-d30v"
2543 ;;
2544 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2545 ospace_frag="config/mt-ospace"
2546 ;;
2547 no:* | :*)
2548 ;;
2549 *)
2550 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2551 ;;
2552 esac
2554 # Some systems (e.g., one of the i386-aix systems the gas testers are
2555 # using) don't handle "\$" correctly, so don't use it here.
2556 tooldir='${exec_prefix}'/${target_noncanonical}
2557 build_tooldir=${tooldir}
2559 # Create a .gdbinit file which runs the one in srcdir
2560 # and tells GDB to look there for source files.
2562 if test -r ${srcdir}/.gdbinit ; then
2563 case ${srcdir} in
2564 .) ;;
2565 *) cat > ./.gdbinit <<EOF
2566 # ${NO_EDIT}
2567 dir ${srcdir}
2568 dir .
2569 source ${srcdir}/.gdbinit
2570 EOF
2571 ;;
2572 esac
2573 fi
2575 # Make sure that the compiler is able to generate an executable. If it
2576 # can't, we are probably in trouble. We don't care whether we can run the
2577 # executable--we might be using a cross compiler--we only care whether it
2578 # can be created. At this point the main configure script has set CC.
2579 we_are_ok=no
2580 echo "int main () { return 0; }" > conftest.c
2581 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2582 if test $? = 0 ; then
2583 if test -s conftest || test -s conftest.exe ; then
2584 we_are_ok=yes
2585 fi
2586 fi
2587 case $we_are_ok in
2588 no)
2589 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2590 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2591 rm -f conftest*
2592 exit 1
2593 ;;
2594 esac
2595 rm -f conftest*
2597 # Decide which environment variable is used to find dynamic libraries.
2598 case "${host}" in
2599 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2600 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2601 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2602 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2603 esac
2605 # On systems where the dynamic library environment variable is PATH,
2606 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2607 # built executables to PATH.
2608 if test "$RPATH_ENVVAR" = PATH; then
2609 GCC_SHLIB_SUBDIR=/shlib
2610 else
2611 GCC_SHLIB_SUBDIR=
2612 fi
2614 # Adjust the toplevel makefile according to whether bootstrap was selected.
2615 case $enable_bootstrap in
2616 yes)
2617 bootstrap_suffix=bootstrap
2618 BUILD_CONFIG=bootstrap-debug
2619 ;;
2620 no)
2621 bootstrap_suffix=no-bootstrap
2622 BUILD_CONFIG=
2623 ;;
2624 esac
2626 AC_MSG_CHECKING(for default BUILD_CONFIG)
2628 AC_ARG_WITH([build-config],
2629 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2630 [use config/NAME.mk build configuration])],
2631 [case $with_build_config in
2632 yes) with_build_config= ;;
2633 no) with_build_config= BUILD_CONFIG= ;;
2634 esac])
2636 if test "x${with_build_config}" != x; then
2637 BUILD_CONFIG=$with_build_config
2638 else
2639 case $BUILD_CONFIG in
2640 bootstrap-debug)
2641 if echo "int f (void) { return 0; }" > conftest.c &&
2642 ${CC} -c conftest.c &&
2643 mv conftest.o conftest.o.g0 &&
2644 ${CC} -c -g conftest.c &&
2645 mv conftest.o conftest.o.g &&
2646 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2647 :
2648 else
2649 BUILD_CONFIG=
2650 fi
2651 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2652 ;;
2653 esac
2654 fi
2655 AC_MSG_RESULT($BUILD_CONFIG)
2656 AC_SUBST(BUILD_CONFIG)
2658 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2659 AC_MSG_CHECKING([for --enable-vtable-verify])
2660 AC_ARG_ENABLE(vtable-verify,
2661 [AS_HELP_STRING([--enable-vtable-verify],
2662 [Enable vtable verification feature])],
2663 [case "$enableval" in
2664 yes) enable_vtable_verify=yes ;;
2665 no) enable_vtable_verify=no ;;
2666 *) enable_vtable_verify=no;;
2667 esac],
2668 [enable_vtable_verify=no])
2669 AC_MSG_RESULT($enable_vtable_verify)
2671 # Record target_configdirs and the configure arguments for target and
2672 # build configuration in Makefile.
2673 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2674 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2675 bootstrap_fixincludes=no
2677 # If we are building libgomp, bootstrap it.
2678 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2679 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2680 fi
2682 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2683 # or bootstrap-ubsan, bootstrap it.
2684 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2685 case "$BUILD_CONFIG" in
2686 *bootstrap-asan* | *bootstrap-ubsan* )
2687 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2688 bootstrap_fixincludes=yes
2689 ;;
2690 esac
2691 fi
2693 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2694 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2695 test "$enable_vtable_verify" != no; then
2696 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2697 fi
2699 # If we are building libmpx and $BUILD_CONFIG contains bootstrap-mpx,
2700 # bootstrap it.
2701 if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then
2702 case "$BUILD_CONFIG" in
2703 *bootstrap-mpx* )
2704 bootstrap_target_libs=${bootstrap_target_libs}target-libmpx,
2705 ;;
2706 esac
2707 fi
2709 # Determine whether gdb needs tk/tcl or not.
2710 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2711 # and in that case we want gdb to be built without tk. Ugh!
2712 # In fact I believe gdb is the *only* package directly dependent on tk,
2713 # so we should be able to put the 'maybe's in unconditionally and
2714 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2715 # 100% sure that that's safe though.
2717 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2718 case "$enable_gdbtk" in
2719 no)
2720 GDB_TK="" ;;
2721 yes)
2722 GDB_TK="${gdb_tk}" ;;
2723 *)
2724 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2725 # distro. Eventually someone will fix this and move Insight, nee
2726 # gdbtk to a separate directory.
2727 if test -d ${srcdir}/gdb/gdbtk ; then
2728 GDB_TK="${gdb_tk}"
2729 else
2730 GDB_TK=""
2731 fi
2732 ;;
2733 esac
2734 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2735 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2737 # Strip out unwanted targets.
2739 # While at that, we remove Makefiles if we were started for recursive
2740 # configuration, so that the top-level Makefile reconfigures them,
2741 # like we used to do when configure itself was recursive.
2743 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2744 # but now we're fixing up the Makefile ourselves with the additional
2745 # commands passed to AC_CONFIG_FILES. Use separate variables
2746 # extrasub-{build,host,target} not because there is any reason to split
2747 # the substitutions up that way, but only to remain below the limit of
2748 # 99 commands in a script, for HP-UX sed.
2749 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2751 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2752 yes:yes:*\ gold\ *:*,c++,*) ;;
2753 yes:yes:*\ gold\ *:*)
2754 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2755 ;;
2756 esac
2758 extrasub_build=
2759 for module in ${build_configdirs} ; do
2760 if test -z "${no_recursion}" \
2761 && test -f ${build_subdir}/${module}/Makefile; then
2762 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2763 rm -f ${build_subdir}/${module}/Makefile
2764 fi
2765 extrasub_build="$extrasub_build
2766 /^@if build-$module\$/d
2767 /^@endif build-$module\$/d
2768 /^@if build-$module-$bootstrap_suffix\$/d
2769 /^@endif build-$module-$bootstrap_suffix\$/d"
2770 done
2771 extrasub_host=
2772 for module in ${configdirs} ; do
2773 if test -z "${no_recursion}"; then
2774 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2775 if test -f ${file}; then
2776 echo 1>&2 "*** removing ${file} to force reconfigure"
2777 rm -f ${file}
2778 fi
2779 done
2780 fi
2781 case ${module},${bootstrap_fixincludes} in
2782 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2783 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2784 esac
2785 extrasub_host="$extrasub_host
2786 /^@if $module\$/d
2787 /^@endif $module\$/d
2788 /^@if $module-$host_bootstrap_suffix\$/d
2789 /^@endif $module-$host_bootstrap_suffix\$/d"
2790 done
2791 extrasub_target=
2792 for module in ${target_configdirs} ; do
2793 if test -z "${no_recursion}" \
2794 && test -f ${target_subdir}/${module}/Makefile; then
2795 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2796 rm -f ${target_subdir}/${module}/Makefile
2797 fi
2799 # We only bootstrap target libraries listed in bootstrap_target_libs.
2800 case $bootstrap_target_libs in
2801 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2802 *) target_bootstrap_suffix=no-bootstrap ;;
2803 esac
2805 extrasub_target="$extrasub_target
2806 /^@if target-$module\$/d
2807 /^@endif target-$module\$/d
2808 /^@if target-$module-$target_bootstrap_suffix\$/d
2809 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2810 done
2812 # Do the final fixup along with target modules.
2813 extrasub_target="$extrasub_target
2814 /^@if /,/^@endif /d"
2816 # Create the serialization dependencies. This uses a temporary file.
2818 AC_ARG_ENABLE([serial-configure],
2819 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2820 [force sequential configuration of
2821 sub-packages for the host, target or build
2822 machine, or all sub-packages])])
2824 case ${enable_serial_configure} in
2825 yes)
2826 enable_serial_build_configure=yes
2827 enable_serial_host_configure=yes
2828 enable_serial_target_configure=yes
2829 ;;
2830 esac
2832 # These force 'configure's to be done one at a time, to avoid problems
2833 # with contention over a shared config.cache.
2834 rm -f serdep.tmp
2835 echo '# serdep.tmp' > serdep.tmp
2836 olditem=
2837 test "x${enable_serial_build_configure}" = xyes &&
2838 for item in ${build_configdirs} ; do
2839 case ${olditem} in
2840 "") ;;
2841 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2842 esac
2843 olditem=${item}
2844 done
2845 olditem=
2846 test "x${enable_serial_host_configure}" = xyes &&
2847 for item in ${configdirs} ; do
2848 case ${olditem} in
2849 "") ;;
2850 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2851 esac
2852 olditem=${item}
2853 done
2854 olditem=
2855 test "x${enable_serial_target_configure}" = xyes &&
2856 for item in ${target_configdirs} ; do
2857 case ${olditem} in
2858 "") ;;
2859 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2860 esac
2861 olditem=${item}
2862 done
2863 serialization_dependencies=serdep.tmp
2864 AC_SUBST_FILE(serialization_dependencies)
2866 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2867 # target, nonopt, and variable assignments. These are the ones we
2868 # might not want to pass down to subconfigures. The exception being
2869 # --cache-file=/dev/null, which is used to turn off the use of cache
2870 # files altogether, and which should be passed on to subconfigures.
2871 # Also strip program-prefix, program-suffix, and program-transform-name,
2872 # so that we can pass down a consistent program-transform-name.
2873 baseargs=
2874 tbaseargs=
2875 keep_next=no
2876 skip_next=no
2877 eval "set -- $ac_configure_args"
2878 for ac_arg
2879 do
2880 if test X"$skip_next" = X"yes"; then
2881 skip_next=no
2882 continue
2883 fi
2884 if test X"$keep_next" = X"yes"; then
2885 case $ac_arg in
2886 *\'*)
2887 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2888 esac
2889 baseargs="$baseargs '$ac_arg'"
2890 tbaseargs="$tbaseargs '$ac_arg'"
2891 keep_next=no
2892 continue
2893 fi
2895 # Handle separated arguments. Based on the logic generated by
2896 # autoconf 2.59.
2897 case $ac_arg in
2898 *=* | --config-cache | -C | -disable-* | --disable-* \
2899 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2900 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2901 | -with-* | --with-* | -without-* | --without-* | --x)
2902 separate_arg=no
2903 ;;
2904 -*)
2905 separate_arg=yes
2906 ;;
2907 *)
2908 separate_arg=no
2909 ;;
2910 esac
2912 skip_targ=no
2913 case $ac_arg in
2914 changequote(,)
2915 --with-* | --without-*)
2916 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2918 case $libopt in
2919 *[-_]include)
2920 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2921 ;;
2922 *[-_]lib)
2923 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2924 ;;
2925 *)
2926 lib=$libopt
2927 ;;
2928 esac
2929 changequote([,])
2931 case $lib in
2932 mpc | mpfr | gmp | isl)
2933 # If we're processing --with-$lib, --with-$lib-include or
2934 # --with-$lib-lib, for one of the libs above, and target is
2935 # different from host, don't pass the current argument to any
2936 # target library's configure.
2937 if test x$is_cross_compiler = xyes; then
2938 skip_targ=yes
2939 fi
2940 ;;
2941 esac
2942 ;;
2943 esac
2945 case "$ac_arg" in
2946 --cache-file=/dev/null | \
2947 -cache-file=/dev/null )
2948 # Handled here to avoid the test to skip args below.
2949 baseargs="$baseargs '$ac_arg'"
2950 tbaseargs="$tbaseargs '$ac_arg'"
2951 # Assert: $separate_arg should always be no.
2952 keep_next=$separate_arg
2953 ;;
2954 --no*)
2955 continue
2956 ;;
2957 --c* | \
2958 --sr* | \
2959 --ho* | \
2960 --bu* | \
2961 --t* | \
2962 --program-* | \
2963 -cache_file* | \
2964 -srcdir* | \
2965 -host* | \
2966 -build* | \
2967 -target* | \
2968 -program-prefix* | \
2969 -program-suffix* | \
2970 -program-transform-name* )
2971 skip_next=$separate_arg
2972 continue
2973 ;;
2974 -*)
2975 # An option. Add it.
2976 case $ac_arg in
2977 *\'*)
2978 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2979 esac
2980 baseargs="$baseargs '$ac_arg'"
2981 if test X"$skip_targ" = Xno; then
2982 tbaseargs="$tbaseargs '$ac_arg'"
2983 fi
2984 keep_next=$separate_arg
2985 ;;
2986 *)
2987 # Either a variable assignment, or a nonopt (triplet). Don't
2988 # pass it down; let the Makefile handle this.
2989 continue
2990 ;;
2991 esac
2992 done
2993 # Remove the initial space we just introduced and, as these will be
2994 # expanded by make, quote '$'.
2995 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2997 # Add in --program-transform-name, after --program-prefix and
2998 # --program-suffix have been applied to it. Autoconf has already
2999 # doubled dollar signs and backslashes in program_transform_name; we want
3000 # the backslashes un-doubled, and then the entire thing wrapped in single
3001 # quotes, because this will be expanded first by make and then by the shell.
3002 # Also, because we want to override the logic in subdir configure scripts to
3003 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3004 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3005 ${program_transform_name}
3006 EOF_SED
3007 gcc_transform_name=`cat conftestsed.out`
3008 rm -f conftestsed.out
3009 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3010 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3011 if test "$silent" = yes; then
3012 baseargs="$baseargs --silent"
3013 tbaseargs="$tbaseargs --silent"
3014 fi
3015 baseargs="$baseargs --disable-option-checking"
3016 tbaseargs="$tbaseargs --disable-option-checking"
3018 # Record and document user additions to sub configure arguments.
3019 AC_ARG_VAR([build_configargs],
3020 [additional configure arguments for build directories])
3021 AC_ARG_VAR([host_configargs],
3022 [additional configure arguments for host directories])
3023 AC_ARG_VAR([target_configargs],
3024 [additional configure arguments for target directories])
3026 # For the build-side libraries, we just need to pretend we're native,
3027 # and not use the same cache file. Multilibs are neither needed nor
3028 # desired. We can't even use the same cache file for all build-side
3029 # libraries, as they're compiled differently; some with C, some with
3030 # C++ or with different feature-enabling options.
3031 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3033 # For host modules, accept cache file option, or specification as blank.
3034 case "${cache_file}" in
3035 "") # empty
3036 cache_file_option="" ;;
3037 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3038 cache_file_option="--cache-file=${cache_file}" ;;
3039 *) # relative path
3040 cache_file_option="--cache-file=../${cache_file}" ;;
3041 esac
3043 # Host dirs don't like to share a cache file either, horribly enough.
3044 # This seems to be due to autoconf 2.5x stupidity.
3045 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3047 target_configargs="$target_configargs ${tbaseargs}"
3049 # Passing a --with-cross-host argument lets the target libraries know
3050 # whether they are being built with a cross-compiler or being built
3051 # native. However, it would be better to use other mechanisms to make the
3052 # sorts of decisions they want to make on this basis. Please consider
3053 # this option to be deprecated. FIXME.
3054 if test x${is_cross_compiler} = xyes ; then
3055 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3056 fi
3058 # Special user-friendly check for native x86_64-linux build, if
3059 # multilib is not explicitly enabled.
3060 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3061 x86_64-*linux*:yes:$build:$build:)
3062 # Make sure we have a development environment that handles 32-bit
3063 dev64=no
3064 echo "int main () { return 0; }" > conftest.c
3065 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3066 if test $? = 0 ; then
3067 if test -s conftest || test -s conftest.exe ; then
3068 dev64=yes
3069 fi
3070 fi
3071 rm -f conftest*
3072 if test x${dev64} != xyes ; then
3073 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.])
3074 fi
3075 ;;
3076 esac
3078 # Default to --enable-multilib.
3079 if test x${enable_multilib} = x ; then
3080 target_configargs="--enable-multilib ${target_configargs}"
3081 fi
3083 # Pass --with-newlib if appropriate. Note that target_configdirs has
3084 # changed from the earlier setting of with_newlib.
3085 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3086 target_configargs="--with-newlib ${target_configargs}"
3087 fi
3089 # Different target subdirs use different values of certain variables
3090 # (notably CXX). Worse, multilibs use *lots* of different values.
3091 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3092 # it doesn't automatically accept command-line overrides of them.
3093 # This means it's not safe for target subdirs to share a cache file,
3094 # which is disgusting, but there you have it. Hopefully this can be
3095 # fixed in future. It's still worthwhile to use a cache file for each
3096 # directory. I think.
3098 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3099 # We need to pass --target, as newer autoconf's requires consistency
3100 # for target_alias and gcc doesn't manage it consistently.
3101 target_configargs="--cache-file=./config.cache ${target_configargs}"
3103 FLAGS_FOR_TARGET=
3104 case " $target_configdirs " in
3105 *" newlib "*)
3106 case " $target_configargs " in
3107 *" --with-newlib "*)
3108 case "$target" in
3109 *-cygwin*)
3110 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3111 ;;
3112 esac
3114 # If we're not building GCC, don't discard standard headers.
3115 if test -d ${srcdir}/gcc; then
3116 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3118 if test "${build}" != "${host}"; then
3119 # On Canadian crosses, CC_FOR_TARGET will have already been set
3120 # by `configure', so we won't have an opportunity to add -Bgcc/
3121 # to it. This is right: we don't want to search that directory
3122 # for binaries, but we want the header files in there, so add
3123 # them explicitly.
3124 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3126 # Someone might think of using the pre-installed headers on
3127 # Canadian crosses, in case the installed compiler is not fully
3128 # compatible with the compiler being built. In this case, it
3129 # would be better to flag an error than risking having
3130 # incompatible object files being constructed. We can't
3131 # guarantee that an error will be flagged, but let's hope the
3132 # compiler will do it, when presented with incompatible header
3133 # files.
3134 fi
3135 fi
3137 case "${target}-${is_cross_compiler}" in
3138 i[[3456789]]86-*-linux*-no)
3139 # Here host == target, so we don't need to build gcc,
3140 # so we don't want to discard standard headers.
3141 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3142 ;;
3143 *)
3144 # If we're building newlib, use its generic headers last, but search
3145 # for any libc-related directories first (so make it the last -B
3146 # switch).
3147 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3149 # If we're building libgloss, find the startup file, simulator library
3150 # and linker script.
3151 case " $target_configdirs " in
3152 *" libgloss "*)
3153 # Look for startup file, simulator library and maybe linker script.
3154 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3155 # Look for libnosys.a in case the target needs it.
3156 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3157 # Most targets have the linker script in the source directory.
3158 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3159 ;;
3160 esac
3161 ;;
3162 esac
3163 ;;
3164 esac
3165 ;;
3166 esac
3168 case "$target" in
3169 x86_64-*mingw* | *-w64-mingw*)
3170 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3171 # however, use a symlink named 'mingw' in ${prefix} .
3172 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3173 ;;
3174 *-mingw*)
3175 # MinGW can't be handled as Cygwin above since it does not use newlib.
3176 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3177 ;;
3178 esac
3180 # Allow the user to override the flags for
3181 # our build compiler if desired.
3182 if test x"${build}" = x"${host}" ; then
3183 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3184 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3185 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3186 fi
3188 # On Canadian crosses, we'll be searching the right directories for
3189 # the previously-installed cross compiler, so don't bother to add
3190 # flags for directories within the install tree of the compiler
3191 # being built; programs in there won't even run.
3192 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3193 # Search for pre-installed headers if nothing else fits.
3194 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3195 fi
3197 if test "x${use_gnu_ld}" = x &&
3198 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3199 # Arrange for us to find uninstalled linker scripts.
3200 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3201 fi
3203 # Search for other target-specific linker scripts and such.
3204 case "${target}" in
3205 mep*)
3206 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3207 ;;
3208 esac
3210 # Makefile fragments.
3211 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3212 do
3213 eval fragval=\$$frag
3214 if test $fragval != /dev/null; then
3215 eval $frag=${srcdir}/$fragval
3216 fi
3217 done
3218 AC_SUBST_FILE(host_makefile_frag)
3219 AC_SUBST_FILE(target_makefile_frag)
3220 AC_SUBST_FILE(alphaieee_frag)
3221 AC_SUBST_FILE(ospace_frag)
3223 # Miscellanea: directories, flags, etc.
3224 AC_SUBST(RPATH_ENVVAR)
3225 AC_SUBST(GCC_SHLIB_SUBDIR)
3226 AC_SUBST(tooldir)
3227 AC_SUBST(build_tooldir)
3228 AC_SUBST(CONFIGURE_GDB_TK)
3229 AC_SUBST(GDB_TK)
3230 AC_SUBST(INSTALL_GDB_TK)
3232 # Build module lists & subconfigure args.
3233 AC_SUBST(build_configargs)
3234 AC_SUBST(build_configdirs)
3236 # Host module lists & subconfigure args.
3237 AC_SUBST(host_configargs)
3238 AC_SUBST(configdirs)
3239 AC_SUBST(target_configdirs)
3241 # Target module lists & subconfigure args.
3242 AC_SUBST(target_configargs)
3245 # Build tools.
3246 AC_SUBST(AR_FOR_BUILD)
3247 AC_SUBST(AS_FOR_BUILD)
3248 AC_SUBST(CC_FOR_BUILD)
3249 AC_SUBST(CFLAGS_FOR_BUILD)
3250 AC_SUBST(CXXFLAGS_FOR_BUILD)
3251 AC_SUBST(CXX_FOR_BUILD)
3252 AC_SUBST(DLLTOOL_FOR_BUILD)
3253 AC_SUBST(GFORTRAN_FOR_BUILD)
3254 AC_SUBST(GOC_FOR_BUILD)
3255 AC_SUBST(LDFLAGS_FOR_BUILD)
3256 AC_SUBST(LD_FOR_BUILD)
3257 AC_SUBST(NM_FOR_BUILD)
3258 AC_SUBST(RANLIB_FOR_BUILD)
3259 AC_SUBST(WINDMC_FOR_BUILD)
3260 AC_SUBST(WINDRES_FOR_BUILD)
3262 # Generate default definitions for YACC, M4, LEX and other programs that run
3263 # on the build machine. These are used if the Makefile can't locate these
3264 # programs in objdir.
3265 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3267 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3268 case " $build_configdirs " in
3269 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3270 esac
3272 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3273 case " $build_configdirs " in
3274 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3275 esac
3277 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3278 case " $build_configdirs " in
3279 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3280 esac
3282 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3283 case " $build_configdirs " in
3284 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3285 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3286 esac
3288 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3289 case " $build_configdirs " in
3290 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3291 esac
3293 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3294 case " $build_configdirs " in
3295 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3296 *)
3297 changequote(,)
3298 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3299 # higher, else we use the "missing" dummy.
3300 if ${MAKEINFO} --version \
3301 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3302 :
3303 else
3304 MAKEINFO="$MISSING makeinfo"
3305 fi
3306 ;;
3307 changequote([,])
3308 esac
3310 # FIXME: expect and dejagnu may become build tools?
3312 AC_CHECK_PROGS(EXPECT, expect, expect)
3313 case " $configdirs " in
3314 *" expect "*)
3315 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3316 ;;
3317 esac
3319 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3320 case " $configdirs " in
3321 *" dejagnu "*)
3322 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3323 ;;
3324 esac
3327 # Host tools.
3328 NCN_STRICT_CHECK_TOOLS(AR, ar)
3329 NCN_STRICT_CHECK_TOOLS(AS, as)
3330 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3331 NCN_STRICT_CHECK_TOOLS(LD, ld)
3332 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3333 NCN_STRICT_CHECK_TOOLS(NM, nm)
3334 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3335 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3336 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3337 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3338 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3339 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3340 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3341 AC_SUBST(CC)
3342 AC_SUBST(CXX)
3343 AC_SUBST(CFLAGS)
3344 AC_SUBST(CXXFLAGS)
3346 # Target tools.
3347 AC_ARG_WITH([build-time-tools],
3348 [AS_HELP_STRING([--with-build-time-tools=PATH],
3349 [use given path to find target tools during the build])],
3350 [case x"$withval" in
3351 x/*) ;;
3352 *)
3353 with_build_time_tools=
3354 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3355 ;;
3356 esac],
3357 [with_build_time_tools=])
3359 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3360 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3361 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3362 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3363 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3365 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3366 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3367 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3368 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3369 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3370 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3371 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3372 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3373 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3374 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3375 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3376 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3377 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3379 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3381 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3382 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3383 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3384 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3385 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3386 [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],
3387 c++)
3388 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3389 [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],
3390 c++)
3391 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3392 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3393 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3394 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3395 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3396 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3397 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3398 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3399 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3400 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3401 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3402 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3403 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3404 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3405 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3406 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3408 AC_SUBST(FLAGS_FOR_TARGET)
3409 AC_SUBST(RAW_CXX_FOR_TARGET)
3411 # Certain tools may need extra flags.
3412 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3413 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3414 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3416 # When building target libraries, except in a Canadian cross, we use
3417 # the same toolchain as the compiler we just built.
3418 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3419 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3420 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3421 if test $host = $build; then
3422 case " $configdirs " in
3423 *" gcc "*)
3424 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3425 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3426 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3427 ;;
3428 esac
3429 fi
3431 AC_SUBST(COMPILER_AS_FOR_TARGET)
3432 AC_SUBST(COMPILER_LD_FOR_TARGET)
3433 AC_SUBST(COMPILER_NM_FOR_TARGET)
3435 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3436 AC_ARG_ENABLE(maintainer-mode,
3437 [AS_HELP_STRING([--enable-maintainer-mode],
3438 [enable make rules and dependencies not useful
3439 (and sometimes confusing) to the casual installer])],
3440 USE_MAINTAINER_MODE=$enableval,
3441 USE_MAINTAINER_MODE=no)
3442 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3443 AC_SUBST(MAINTAINER_MODE_TRUE)
3444 AC_SUBST(MAINTAINER_MODE_FALSE)
3445 if test "$USE_MAINTAINER_MODE" = yes; then
3446 MAINTAINER_MODE_TRUE=
3447 MAINTAINER_MODE_FALSE='#'
3448 else
3449 MAINTAINER_MODE_TRUE='#'
3450 MAINTAINER_MODE_FALSE=
3451 fi
3452 MAINT=$MAINTAINER_MODE_TRUE
3453 AC_SUBST(MAINT)dnl
3455 # ---------------------
3456 # GCC bootstrap support
3457 # ---------------------
3459 # Stage specific cflags for build.
3460 stage1_cflags="-g"
3461 case $build in
3462 vax-*-*)
3463 case ${GCC} in
3464 yes) stage1_cflags="-g -Wa,-J" ;;
3465 *) stage1_cflags="-g -J" ;;
3466 esac ;;
3467 esac
3469 AC_SUBST(stage1_cflags)
3471 # Enable --enable-checking in stage1 of the compiler.
3472 AC_ARG_ENABLE(stage1-checking,
3473 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3474 [choose additional checking for stage1 of the compiler])],
3475 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3476 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3477 # For --disable-checking or implicit --enable-checking=release, avoid
3478 # setting --enable-checking=gc in the default stage1 checking for LTO
3479 # bootstraps. See PR62077.
3480 case $BUILD_CONFIG in
3481 *lto*)
3482 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3483 *)
3484 stage1_checking=--enable-checking=yes,types;;
3485 esac
3486 if test "x$enable_checking" = x && \
3487 test -d ${srcdir}/gcc && \
3488 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3489 stage1_checking=--enable-checking=yes,types,extra
3490 fi
3491 else
3492 stage1_checking=--enable-checking=$enable_checking,types
3493 fi])
3494 AC_SUBST(stage1_checking)
3496 # Enable -Werror in bootstrap stage2 and later.
3497 AC_ARG_ENABLE(werror,
3498 [AS_HELP_STRING([--enable-werror],
3499 [enable -Werror in bootstrap stage2 and later])],
3500 [
3501 case ${enable_werror} in
3502 yes) stage2_werror_flag="--enable-werror-always" ;;
3503 *) stage2_werror_flag="" ;;
3504 esac
3505 ],
3506 [
3507 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3508 case $BUILD_CONFIG in
3509 bootstrap-debug)
3510 stage2_werror_flag="--enable-werror-always" ;;
3511 "")
3512 stage2_werror_flag="--enable-werror-always" ;;
3513 esac
3514 fi
3515 ])
3517 AC_SUBST(stage2_werror_flag)
3519 # Specify what files to not compare during bootstrap.
3521 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3522 case "$target" in
3523 hppa*64*-*-hpux*) ;;
3524 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
3525 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3526 esac
3527 AC_SUBST(compare_exclusions)
3529 AC_CONFIG_FILES([Makefile],
3530 [sed "$extrasub_build" Makefile |
3531 sed "$extrasub_host" |
3532 sed "$extrasub_target" > mf$$
3533 mv -f mf$$ Makefile],
3534 [extrasub_build="$extrasub_build"
3535 extrasub_host="$extrasub_host"
3536 extrasub_target="$extrasub_target"])
3537 AC_OUTPUT