| blob | 944f30cfea84e9266b4322df7902b867882d4d8c |
1 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
2 # 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
3 # 2014, 2015, 2016, 2019 Free Software Foundation, Inc.
4 #
5 # This file is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program; see the file COPYING3. If not see
17 # <http://www.gnu.org/licenses/>.
19 ##############################################################################
20 ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
22 m4_include(config/acx.m4)
23 m4_include(config/override.m4)
24 m4_include(config/proginstall.m4)
25 m4_include(config/elf.m4)
26 m4_include(config/ax_cxx_compile_stdcxx.m4)
27 m4_include([libtool.m4])
28 m4_include([ltoptions.m4])
29 m4_include([ltsugar.m4])
30 m4_include([ltversion.m4])
31 m4_include([lt~obsolete.m4])
32 m4_include([config/isl.m4])
34 AC_INIT(move-if-change)
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 libctf"
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 gdbserver 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-libssp \
161 target-libquadmath \
162 target-libgfortran \
163 target-libffi \
164 target-libobjc \
165 target-libada \
166 target-libgo \
167 target-libphobos \
168 target-zlib"
170 # these tools are built using the target libraries, and are intended to
171 # run only in the target environment
172 #
173 # note: any program that *uses* libraries that are in the "target_libraries"
174 # list belongs in this list.
175 #
176 target_tools="target-rda"
178 ################################################################################
180 ## All tools belong in one of the four categories, and are assigned above
181 ## We assign ${configdirs} this way to remove all embedded newlines. This
182 ## is important because configure will choke if they ever get through.
183 ## ${configdirs} is directories we build using the host tools.
184 ## ${target_configdirs} is directories we build using the target tools.
185 configdirs=`echo ${host_libs} ${host_tools}`
186 target_configdirs=`echo ${target_libraries} ${target_tools}`
187 build_configdirs=`echo ${build_libs} ${build_tools}`
189 m4_divert_text([PARSE_ARGS],
190 [case $srcdir in
191 *" "*)
192 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
193 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
194 m4_popdef([AS_MESSAGE_LOG_FD])dnl
195 ;;
196 esac
197 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
198 ])
200 ################################################################################
202 srcname="gnu development package"
204 # This gets set non-empty for some net releases of packages.
205 appdirs=""
207 # Define is_cross_compiler to save on calls to 'test'.
208 is_cross_compiler=
209 if test x"${host}" = x"${target}" ; then
210 is_cross_compiler=no
211 else
212 is_cross_compiler=yes
213 fi
215 # Find the build and target subdir names.
216 GCC_TOPLEV_SUBDIRS
217 # Be sure to cover against remnants of an in-tree build.
218 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
219 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
220 Use a pristine source tree when building in a separate tree])
221 fi
223 # Skipdirs are removed silently.
224 skipdirs=
225 # Noconfigdirs are removed loudly.
226 noconfigdirs=""
228 use_gnu_ld=
229 # Make sure we don't let GNU ld be added if we didn't want it.
230 if test x$with_gnu_ld = xno ; then
231 use_gnu_ld=no
232 noconfigdirs="$noconfigdirs ld gold"
233 fi
235 use_gnu_as=
236 # Make sure we don't let GNU as be added if we didn't want it.
237 if test x$with_gnu_as = xno ; then
238 use_gnu_as=no
239 noconfigdirs="$noconfigdirs gas"
240 fi
242 use_included_zlib=
243 AC_ARG_WITH(system-zlib,
244 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
245 # Make sure we don't let ZLIB be added if we didn't want it.
246 if test x$with_system_zlib = xyes ; then
247 use_included_zlib=no
248 noconfigdirs="$noconfigdirs zlib"
249 fi
251 # some tools are so dependent upon X11 that if we're not building with X,
252 # it's not even worth trying to configure, much less build, that tool.
254 case ${with_x} in
255 yes | "") ;; # the default value for this tree is that X11 is available
256 no)
257 skipdirs="${skipdirs} tk itcl libgui"
258 # We won't be able to build gdbtk without X.
259 enable_gdbtk=no
260 ;;
261 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
262 esac
264 # Some are only suitable for cross toolchains.
265 # Remove these if host=target.
266 cross_only="target-libgloss target-newlib target-opcodes"
268 case $is_cross_compiler in
269 no) skipdirs="${skipdirs} ${cross_only}" ;;
270 esac
272 # If both --with-headers and --with-libs are specified, default to
273 # --without-newlib.
274 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
275 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
276 if test x"${with_newlib}" = x ; then
277 with_newlib=no
278 fi
279 fi
281 # Recognize --with-newlib/--without-newlib.
282 case ${with_newlib} in
283 no) skipdirs="${skipdirs} target-newlib" ;;
284 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
285 esac
287 AC_ARG_ENABLE(as-accelerator-for,
288 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
289 [build as offload target compiler.
290 Specify offload host triple by ARG])])
292 AC_ARG_ENABLE(offload-targets,
293 [AS_HELP_STRING([--enable-offload-targets=LIST],
294 [enable offloading to devices from comma-separated LIST of
295 TARGET[=DIR]. Use optional path to find offload target compiler
296 during the build])],
297 [
298 if test x"$enable_offload_targets" = x; then
299 AC_MSG_ERROR([no offload targets specified])
300 fi
301 ], [enable_offload_targets=])
303 # Handle --enable-gold, --enable-ld.
304 # --disable-gold [--enable-ld]
305 # Build only ld. Default option.
306 # --enable-gold [--enable-ld]
307 # Build both gold and ld. Install gold as "ld.gold", install ld
308 # as "ld.bfd" and "ld".
309 # --enable-gold=default [--enable-ld]
310 # Build both gold and ld. Install gold as "ld.gold" and "ld",
311 # install ld as "ld.bfd".
312 # --enable-gold[=default] --disable-ld
313 # Build only gold, which is then installed as both "ld.gold" and "ld".
314 # --enable-gold --enable-ld=default
315 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
316 # and ld.bfd).
317 # In other words, ld is default
318 # --enable-gold=default --enable-ld=default
319 # Error.
321 default_ld=
322 AC_ARG_ENABLE(gold,
323 [AS_HELP_STRING([[--enable-gold[=ARG]]],
324 [build gold @<:@ARG={default,yes,no}@:>@])],
325 ENABLE_GOLD=$enableval,
326 ENABLE_GOLD=no)
327 case "${ENABLE_GOLD}" in
328 yes|default)
329 # Check for ELF target.
330 is_elf=no
331 case "${target}" in
332 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
333 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
334 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
335 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
336 case "${target}" in
337 *-*-linux*aout* | *-*-linux*oldld*)
338 ;;
339 *)
340 is_elf=yes
341 ;;
342 esac
343 esac
345 if test "$is_elf" = "yes"; then
346 # Check for target supported by gold.
347 case "${target}" in
348 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
349 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
350 configdirs="$configdirs gold"
351 if test x${ENABLE_GOLD} = xdefault; then
352 default_ld=gold
353 fi
354 ENABLE_GOLD=yes
355 ;;
356 esac
357 fi
358 ;;
359 no)
360 ;;
361 *)
362 AC_MSG_ERROR([invalid --enable-gold argument])
363 ;;
364 esac
366 AC_ARG_ENABLE(ld,
367 [AS_HELP_STRING([[--enable-ld[=ARG]]],
368 [build ld @<:@ARG={default,yes,no}@:>@])],
369 ENABLE_LD=$enableval,
370 ENABLE_LD=yes)
372 case "${ENABLE_LD}" in
373 default)
374 if test x${default_ld} != x; then
375 AC_MSG_ERROR([either gold or ld can be the default ld])
376 fi
377 ;;
378 yes)
379 ;;
380 no)
381 if test x${ENABLE_GOLD} != xyes; then
382 AC_MSG_WARN([neither ld nor gold are enabled])
383 fi
384 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
385 ;;
386 *)
387 AC_MSG_ERROR([invalid --enable-ld argument])
388 ;;
389 esac
391 # PR gas/19109
392 # Decide the default method for compressing debug sections.
393 # Provide a configure time option to override our default.
394 AC_ARG_ENABLE(compressed_debug_sections,
395 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
396 [Enable compressed debug sections for gas, gold or ld by
397 default])],
398 [
399 if test x"$enable_compressed_debug_sections" = xyes; then
400 AC_MSG_ERROR([no program with compressed debug sections specified])
401 fi
402 ], [enable_compressed_debug_sections=])
404 # Configure extra directories which are host specific
406 case "${host}" in
407 *-cygwin*)
408 configdirs="$configdirs libtermcap" ;;
409 esac
411 # A target can indicate whether a language isn't supported for some reason.
412 # Only spaces may be used in this macro; not newlines or tabs.
413 unsupported_languages=
415 # Remove more programs from consideration, based on the host or
416 # target this usually means that a port of the program doesn't
417 # exist yet.
419 case "${host}" in
420 i[[3456789]]86-*-msdosdjgpp*)
421 noconfigdirs="$noconfigdirs tcl tk itcl"
422 ;;
423 esac
426 AC_ARG_ENABLE(libquadmath,
427 AS_HELP_STRING([--disable-libquadmath],
428 [do not build libquadmath directory]),
429 ENABLE_LIBQUADMATH=$enableval,
430 ENABLE_LIBQUADMATH=yes)
431 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
432 noconfigdirs="$noconfigdirs target-libquadmath"
433 fi
436 AC_ARG_ENABLE(libquadmath-support,
437 AS_HELP_STRING([--disable-libquadmath-support],
438 [disable libquadmath support for Fortran]),
439 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
440 ENABLE_LIBQUADMATH_SUPPORT=yes)
441 enable_libquadmath_support=
442 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
443 enable_libquadmath_support=no
444 fi
447 AC_ARG_ENABLE(libada,
448 [AS_HELP_STRING([--enable-libada], [build libada directory])],
449 ENABLE_LIBADA=$enableval,
450 ENABLE_LIBADA=yes)
451 if test "${ENABLE_LIBADA}" != "yes" ; then
452 noconfigdirs="$noconfigdirs gnattools"
453 fi
455 AC_ARG_ENABLE(libssp,
456 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
457 ENABLE_LIBSSP=$enableval,
458 ENABLE_LIBSSP=yes)
460 AC_ARG_ENABLE(libstdcxx,
461 AS_HELP_STRING([--disable-libstdcxx],
462 [do not build libstdc++-v3 directory]),
463 ENABLE_LIBSTDCXX=$enableval,
464 ENABLE_LIBSTDCXX=default)
465 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
466 noconfigdirs="$noconfigdirs target-libstdc++-v3"
467 fi]
469 # If this is accelerator compiler and its target is intelmic we enable
470 # target liboffloadmic by default. If this is compiler with offloading
471 # for intelmic we enable host liboffloadmic by default. Otherwise
472 # liboffloadmic is disabled by default.
473 AC_ARG_ENABLE([liboffloadmic],
474 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
475 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
476 [case "$enableval" in
477 no | host | target)
478 enable_liboffloadmic=$enableval ;;
479 *)
480 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
481 esac],
482 [if test x"$enable_as_accelerator_for" != x; then
483 case "${target}" in
484 *-intelmic-* | *-intelmicemul-*)
485 enable_liboffloadmic=target
486 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
487 ;;
488 *)
489 enable_liboffloadmic=no
490 ;;
491 esac
492 else
493 case "${enable_offload_targets}" in
494 *-intelmic-* | *-intelmicemul-*)
495 enable_liboffloadmic=host
496 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
497 ;;
498 *)
499 enable_liboffloadmic=no
500 ;;
501 esac
502 fi])
503 AC_SUBST(extra_liboffloadmic_configure_flags)
505 # Enable libgomp by default on hosted POSIX systems, and a few others.
506 if test x$enable_libgomp = x ; then
507 case "${target}" in
508 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
509 ;;
510 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
511 ;;
512 *-*-solaris2* | *-*-hpux11*)
513 ;;
514 *-*-darwin* | *-*-aix*)
515 ;;
516 nvptx*-*-* | amdgcn*-*-*)
517 ;;
518 *)
519 noconfigdirs="$noconfigdirs target-libgomp"
520 ;;
521 esac
522 fi
524 # Disable libatomic on unsupported systems.
525 if test -d ${srcdir}/libatomic; then
526 if test x$enable_libatomic = x; then
527 AC_MSG_CHECKING([for libatomic support])
528 if (srcdir=${srcdir}/libatomic; \
529 . ${srcdir}/configure.tgt; \
530 test -n "$UNSUPPORTED")
531 then
532 AC_MSG_RESULT([no])
533 noconfigdirs="$noconfigdirs target-libatomic"
534 else
535 AC_MSG_RESULT([yes])
536 fi
537 fi
538 fi
540 # Disable liboffloadmic on unsupported systems.
541 if test -d ${srcdir}/liboffloadmic; then
542 if test x$enable_liboffloadmic != xno; then
543 AC_MSG_CHECKING([for liboffloadmic support])
544 if (srcdir=${srcdir}/liboffloadmic; \
545 . ${srcdir}/configure.tgt; \
546 test -n "$UNSUPPORTED")
547 then
548 AC_MSG_RESULT([no])
549 noconfigdirs="$noconfigdirs target-liboffloadmic"
550 else
551 AC_MSG_RESULT([yes])
552 fi
553 fi
554 fi
556 # Disable libitm on unsupported systems.
557 if test -d ${srcdir}/libitm; then
558 if test x$enable_libitm = x; then
559 AC_MSG_CHECKING([for libitm support])
560 if (srcdir=${srcdir}/libitm; \
561 . ${srcdir}/configure.tgt; \
562 test -n "$UNSUPPORTED")
563 then
564 AC_MSG_RESULT([no])
565 noconfigdirs="$noconfigdirs target-libitm"
566 else
567 AC_MSG_RESULT([yes])
568 fi
569 fi
570 fi
572 # Disable libsanitizer on unsupported systems.
573 if test -d ${srcdir}/libsanitizer; then
574 if test x$enable_libsanitizer = x; then
575 AC_MSG_CHECKING([for libsanitizer support])
576 if (srcdir=${srcdir}/libsanitizer; \
577 . ${srcdir}/configure.tgt; \
578 test -n "$UNSUPPORTED")
579 then
580 AC_MSG_RESULT([no])
581 noconfigdirs="$noconfigdirs target-libsanitizer"
582 else
583 AC_MSG_RESULT([yes])
584 fi
585 fi
586 fi
588 # Disable libvtv on unsupported systems.
589 if test -d ${srcdir}/libvtv; then
590 if test x$enable_libvtv = x; then
591 AC_MSG_CHECKING([for libvtv support])
592 if (srcdir=${srcdir}/libvtv; \
593 . ${srcdir}/configure.tgt; \
594 test "$VTV_SUPPORTED" != "yes")
595 then
596 AC_MSG_RESULT([no])
597 noconfigdirs="$noconfigdirs target-libvtv"
598 else
599 AC_MSG_RESULT([yes])
600 fi
601 fi
602 fi
605 # Disable libhsail-rt on unsupported systems.
606 if test -d ${srcdir}/libhsail-rt; then
607 if test x$enable_libhsail_rt = x; then
608 AC_MSG_CHECKING([for libhsail-rt support])
609 if (srcdir=${srcdir}/libhsail-rt; \
610 . ${srcdir}/configure.tgt; \
611 test -n "$UNSUPPORTED")
612 then
613 AC_MSG_RESULT([no])
614 unsupported_languages="$unsupported_languages brig"
615 # This implicitly disables also target-libhsail-rt as it won't
616 # get added to the build without BRIG FE.
617 else
618 AC_MSG_RESULT([yes])
619 fi
620 fi
621 fi
624 # Disable libquadmath for some systems.
625 case "${target}" in
626 avr-*-*)
627 noconfigdirs="$noconfigdirs target-libquadmath"
628 ;;
629 # libquadmath is unused on AIX and libquadmath build process use of
630 # LD_LIBRARY_PATH can break AIX bootstrap.
631 powerpc-*-aix* | rs6000-*-aix*)
632 noconfigdirs="$noconfigdirs target-libquadmath"
633 ;;
634 esac
636 # Disable libssp for some systems.
637 case "${target}" in
638 avr-*-*)
639 # No hosted I/O support.
640 noconfigdirs="$noconfigdirs target-libssp"
641 ;;
642 bpf-*-*)
643 noconfigdirs="$noconfigdirs target-libssp"
644 ;;
645 powerpc-*-aix* | rs6000-*-aix*)
646 noconfigdirs="$noconfigdirs target-libssp"
647 ;;
648 pru-*-*)
649 # No hosted I/O support.
650 noconfigdirs="$noconfigdirs target-libssp"
651 ;;
652 rl78-*-*)
653 # libssp uses a misaligned load to trigger a fault, but the RL78
654 # doesn't fault for those - instead, it gives a build-time error
655 # for explicit misaligned loads.
656 noconfigdirs="$noconfigdirs target-libssp"
657 ;;
658 visium-*-*)
659 # No hosted I/O support.
660 noconfigdirs="$noconfigdirs target-libssp"
661 ;;
662 esac
664 # Disable libstdc++-v3 for some systems.
665 # Allow user to override this if they pass --enable-libstdc++-v3
666 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
667 case "${target}" in
668 *-*-vxworks*)
669 # VxWorks uses the Dinkumware C++ library.
670 noconfigdirs="$noconfigdirs target-libstdc++-v3"
671 ;;
672 amdgcn*-*-*)
673 # Not ported/fails to build when using newlib.
674 noconfigdirs="$noconfigdirs target-libstdc++-v3"
675 ;;
676 arm*-wince-pe*)
677 # the C++ libraries don't build on top of CE's C libraries
678 noconfigdirs="$noconfigdirs target-libstdc++-v3"
679 ;;
680 avr-*-*)
681 noconfigdirs="$noconfigdirs target-libstdc++-v3"
682 ;;
683 bpf-*-*)
684 noconfigdirs="$noconfigdirs target-libstdc++-v3"
685 ;;
686 ft32-*-*)
687 noconfigdirs="$noconfigdirs target-libstdc++-v3"
688 ;;
689 esac
690 fi
692 # Disable C++ on systems where it is known to not work.
693 # For testing, you can override this with --enable-languages=c++.
694 case ,${enable_languages}, in
695 *,c++,*)
696 ;;
697 *)
698 case "${target}" in
699 bpf-*-*)
700 unsupported_languages="$unsupported_languages c++"
701 ;;
702 esac
703 ;;
704 esac
706 # Disable Objc on systems where it is known to not work.
707 # For testing, you can override this with --enable-languages=objc.
708 case ,${enable_languages}, in
709 *,objc,*)
710 ;;
711 *)
712 case "${target}" in
713 bpf-*-*)
714 unsupported_languages="$unsupported_languages objc"
715 ;;
716 esac
717 ;;
718 esac
720 # Disable D on systems where it is known to not work.
721 # For testing, you can override this with --enable-languages=d.
722 case ,${enable_languages}, in
723 *,d,*)
724 ;;
725 *)
726 case "${target}" in
727 *-*-darwin*)
728 unsupported_languages="$unsupported_languages d"
729 ;;
730 bpf-*-*)
731 unsupported_languages="$unsupported_languages d"
732 ;;
733 esac
734 ;;
735 esac
737 # Disable libphobos on unsupported systems.
738 # For testing, you can override this with --enable-libphobos.
739 if test -d ${srcdir}/libphobos; then
740 if test x$enable_libphobos = x; then
741 AC_MSG_CHECKING([for libphobos support])
742 if (srcdir=${srcdir}/libphobos; \
743 . ${srcdir}/configure.tgt; \
744 test "$LIBPHOBOS_SUPPORTED" != "yes")
745 then
746 AC_MSG_RESULT([no])
747 noconfigdirs="$noconfigdirs target-libphobos"
748 else
749 AC_MSG_RESULT([yes])
750 fi
751 fi
752 fi
754 # Disable Fortran for some systems.
755 case "${target}" in
756 mmix-*-*)
757 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
758 unsupported_languages="$unsupported_languages fortran"
759 ;;
760 bpf-*-*)
761 unsupported_languages="$unsupported_languages fortran"
762 ;;
763 esac
765 # Disable libffi for some systems.
766 case "${target}" in
767 powerpc-*-darwin*)
768 ;;
769 i[[3456789]]86-*-darwin*)
770 ;;
771 x86_64-*-darwin[[912]]*)
772 ;;
773 *-*-darwin*)
774 noconfigdirs="$noconfigdirs target-libffi"
775 ;;
776 *-*-netware*)
777 noconfigdirs="$noconfigdirs target-libffi"
778 ;;
779 *-*-phoenix*)
780 noconfigdirs="$noconfigdirs target-libffi"
781 ;;
782 *-*-rtems*)
783 noconfigdirs="$noconfigdirs target-libffi"
784 ;;
785 *-*-tpf*)
786 noconfigdirs="$noconfigdirs target-libffi"
787 ;;
788 *-*-uclinux*)
789 noconfigdirs="$noconfigdirs target-libffi"
790 ;;
791 *-*-vxworks*)
792 noconfigdirs="$noconfigdirs target-libffi"
793 ;;
794 aarch64*-*-freebsd*)
795 noconfigdirs="$noconfigdirs target-libffi"
796 ;;
797 alpha*-*-*vms*)
798 noconfigdirs="$noconfigdirs target-libffi"
799 ;;
800 arm*-*-freebsd*)
801 noconfigdirs="$noconfigdirs target-libffi"
802 ;;
803 arm-wince-pe)
804 noconfigdirs="$noconfigdirs target-libffi"
805 ;;
806 arm*-*-symbianelf*)
807 noconfigdirs="$noconfigdirs target-libffi"
808 ;;
809 bpf-*-*)
810 noconfigdirs="$noconfigdirs target-libffi"
811 ;;
812 cris-*-* | crisv32-*-*)
813 case "${target}" in
814 *-*-linux*)
815 ;;
816 *) # See PR46792 regarding target-libffi.
817 noconfigdirs="$noconfigdirs target-libffi";;
818 esac
819 ;;
820 hppa*64*-*-hpux*)
821 noconfigdirs="$noconfigdirs target-libffi"
822 ;;
823 hppa*-hp-hpux11*)
824 ;;
825 hppa*-*-hpux*)
826 noconfigdirs="$noconfigdirs target-libffi"
827 ;;
828 ia64*-*-*vms*)
829 noconfigdirs="$noconfigdirs target-libffi"
830 ;;
831 i[[3456789]]86-w64-mingw*)
832 noconfigdirs="$noconfigdirs target-libffi"
833 ;;
834 i[[3456789]]86-*-mingw*)
835 noconfigdirs="$noconfigdirs target-libffi"
836 ;;
837 x86_64-*-mingw*)
838 noconfigdirs="$noconfigdirs target-libffi"
839 ;;
840 mmix-*-*)
841 noconfigdirs="$noconfigdirs target-libffi"
842 ;;
843 powerpc-*-aix*)
844 ;;
845 rs6000-*-aix*)
846 ;;
847 ft32-*-*)
848 noconfigdirs="$noconfigdirs target-libffi"
849 ;;
850 *-*-lynxos*)
851 noconfigdirs="$noconfigdirs target-libffi"
852 ;;
853 esac
855 # Disable the go frontend on systems where it is known to not work. Please keep
856 # this in sync with contrib/config-list.mk.
857 case "${target}" in
858 *-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
859 unsupported_languages="$unsupported_languages go"
860 ;;
861 esac
863 # Only allow gdbserver on some systems.
864 if test -d ${srcdir}/gdbserver; then
865 if test x$enable_gdbserver = x; then
866 AC_MSG_CHECKING([for gdbserver support])
867 if (srcdir=${srcdir}/gdbserver; \
868 . ${srcdir}/configure.srv; \
869 test -n "$UNSUPPORTED")
870 then
871 AC_MSG_RESULT([no])
872 noconfigdirs="$noconfigdirs gdbserver"
873 else
874 AC_MSG_RESULT([yes])
875 fi
876 fi
877 fi
879 # Disable libgo for some systems where it is known to not work.
880 # For testing, you can easily override this with --enable-libgo.
881 if test x$enable_libgo = x; then
882 case "${target}" in
883 *-*-darwin*)
884 # PR 46986
885 noconfigdirs="$noconfigdirs target-libgo"
886 ;;
887 *-*-cygwin* | *-*-mingw*)
888 noconfigdirs="$noconfigdirs target-libgo"
889 ;;
890 bpf-*-*)
891 noconfigdirs="$noconfigdirs target-libgo"
892 ;;
893 esac
894 fi
896 # Default libgloss CPU subdirectory.
897 libgloss_dir="$target_cpu"
899 case "${target}" in
900 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
901 libgloss_dir=wince
902 ;;
903 aarch64*-*-* )
904 libgloss_dir=aarch64
905 ;;
906 arm*-*-*)
907 libgloss_dir=arm
908 ;;
909 cris-*-* | crisv32-*-*)
910 libgloss_dir=cris
911 ;;
912 hppa*-*-*)
913 libgloss_dir=pa
914 ;;
915 i[[3456789]]86-*-*)
916 libgloss_dir=i386
917 ;;
918 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
919 libgloss_dir=m68hc11
920 ;;
921 m68*-*-* | fido-*-*)
922 libgloss_dir=m68k
923 ;;
924 mips*-*-*)
925 libgloss_dir=mips
926 ;;
927 powerpc*-*-*)
928 libgloss_dir=rs6000
929 ;;
930 pru-*-*)
931 libgloss_dir=pru
932 ;;
933 sparc*-*-*)
934 libgloss_dir=sparc
935 ;;
936 esac
938 # Disable newlib and libgloss for various target OSes.
939 case "${target}" in
940 alpha*-dec-osf*)
941 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
942 ;;
943 i[[3456789]]86-*-linux*)
944 # This section makes it possible to build newlib natively on linux.
945 # If we are using a cross compiler then don't configure newlib.
946 if test x${is_cross_compiler} != xno ; then
947 noconfigdirs="$noconfigdirs target-newlib"
948 fi
949 noconfigdirs="$noconfigdirs target-libgloss"
950 # If we are not using a cross compiler, do configure newlib.
951 # Note however, that newlib will only be configured in this situation
952 # if the --with-newlib option has been given, because otherwise
953 # 'target-newlib' will appear in skipdirs.
954 ;;
955 i[[3456789]]86-*-rdos*)
956 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
957 ;;
958 sh*-*-pe|mips*-*-pe|arm-wince-pe)
959 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
960 ;;
961 sparc-*-sunos4*)
962 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
963 ;;
964 bpf-*-*)
965 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
966 ;;
967 *-*-aix*)
968 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
969 ;;
970 *-*-beos*)
971 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
972 ;;
973 *-*-chorusos)
974 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
975 ;;
976 *-*-dragonfly*)
977 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
978 ;;
979 *-*-freebsd*)
980 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
981 ;;
982 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
983 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
984 ;;
985 *-*-lynxos*)
986 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
987 ;;
988 *-*-mingw*)
989 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
990 ;;
991 *-*-netbsd*)
992 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
993 ;;
994 *-*-netware*)
995 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
996 ;;
997 *-*-tpf*)
998 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
999 ;;
1000 *-*-uclinux*)
1001 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1002 ;;
1003 *-*-vxworks*)
1004 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1005 ;;
1006 esac
1008 case "${target}" in
1009 *-*-chorusos)
1010 ;;
1011 aarch64-*-darwin*)
1012 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1013 noconfigdirs="$noconfigdirs sim target-rda"
1014 ;;
1015 amdgcn*-*-*)
1016 ;;
1017 arm-*-darwin*)
1018 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1019 noconfigdirs="$noconfigdirs sim target-rda"
1020 ;;
1021 powerpc-*-darwin*)
1022 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1023 noconfigdirs="$noconfigdirs sim target-rda"
1024 ;;
1025 i[[3456789]]86-*-darwin*)
1026 noconfigdirs="$noconfigdirs ld gprof"
1027 noconfigdirs="$noconfigdirs sim target-rda"
1028 ;;
1029 x86_64-*-darwin[[912]]*)
1030 noconfigdirs="$noconfigdirs ld gas gprof"
1031 noconfigdirs="$noconfigdirs sim target-rda"
1032 ;;
1033 *-*-darwin*)
1034 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1035 noconfigdirs="$noconfigdirs sim target-rda"
1036 ;;
1037 *-*-dragonfly*)
1038 ;;
1039 *-*-freebsd*)
1040 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
1041 && ! test -d ${srcdir}/gmp \
1042 && test -f /usr/local/include/gmp.h; then
1043 with_gmp=/usr/local
1044 fi
1045 ;;
1046 *-*-kaos*)
1047 # Remove unsupported stuff on all kaOS configurations.
1048 noconfigdirs="$noconfigdirs target-libgloss"
1049 ;;
1050 *-*-netbsd*)
1051 ;;
1052 *-*-netware*)
1053 ;;
1054 *-*-phoenix*)
1055 noconfigdirs="$noconfigdirs target-libgloss"
1056 ;;
1057 *-*-rtems*)
1058 noconfigdirs="$noconfigdirs target-libgloss"
1059 ;;
1060 # The tpf target doesn't support gdb yet.
1061 *-*-tpf*)
1062 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
1063 ;;
1064 *-*-uclinux*)
1065 noconfigdirs="$noconfigdirs target-rda"
1066 ;;
1067 *-*-vxworks*)
1068 ;;
1069 alpha*-dec-osf*)
1070 # ld works, but does not support shared libraries.
1071 # gas doesn't generate exception information.
1072 noconfigdirs="$noconfigdirs gas ld"
1073 ;;
1074 alpha*-*-*vms*)
1075 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1076 ;;
1077 alpha*-*-*)
1078 # newlib is not 64 bit ready
1079 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1080 ;;
1081 bpf-*-*)
1082 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1083 ;;
1084 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1085 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1086 ;;
1087 arc*-*-*)
1088 noconfigdirs="$noconfigdirs sim"
1089 ;;
1090 arm-*-pe*)
1091 noconfigdirs="$noconfigdirs target-libgloss"
1092 ;;
1093 arm-*-riscix*)
1094 noconfigdirs="$noconfigdirs ld target-libgloss"
1095 ;;
1096 avr-*-*)
1097 if test x${with_avrlibc} != xno; then
1098 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1099 fi
1100 ;;
1101 c4x-*-* | tic4x-*-*)
1102 noconfigdirs="$noconfigdirs target-libgloss"
1103 ;;
1104 tic54x-*-*)
1105 noconfigdirs="$noconfigdirs target-libgloss gdb"
1106 ;;
1107 d10v-*-*)
1108 noconfigdirs="$noconfigdirs target-libgloss"
1109 ;;
1110 d30v-*-*)
1111 noconfigdirs="$noconfigdirs gdb"
1112 ;;
1113 fr30-*-elf*)
1114 noconfigdirs="$noconfigdirs gdb"
1115 ;;
1116 ft32-*-*)
1117 noconfigdirs="$noconfigdirs target-rda gprof"
1118 ;;
1119 moxie-*-*)
1120 noconfigdirs="$noconfigdirs"
1121 ;;
1122 h8300*-*-*)
1123 noconfigdirs="$noconfigdirs target-libgloss"
1124 ;;
1125 h8500-*-*)
1126 noconfigdirs="$noconfigdirs target-libgloss"
1127 ;;
1128 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1129 ;;
1130 hppa*64*-*-hpux*)
1131 noconfigdirs="$noconfigdirs gdb"
1132 ;;
1133 hppa*-*-hpux11*)
1134 noconfigdirs="$noconfigdirs gdb ld"
1135 ;;
1136 hppa*64*-*-linux*)
1137 ;;
1138 hppa*-*-linux*)
1139 ;;
1140 hppa*-*-*elf* | \
1141 hppa*-*-lites* | \
1142 hppa*-*-openbsd* | \
1143 hppa*64*-*-*)
1144 ;;
1145 hppa*-*-pro*)
1146 ;;
1147 hppa*-*-*)
1148 noconfigdirs="$noconfigdirs ld"
1149 ;;
1150 i960-*-*)
1151 noconfigdirs="$noconfigdirs gdb"
1152 ;;
1153 ia64*-*-elf*)
1154 # No gdb support yet.
1155 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1156 ;;
1157 ia64*-**-hpux*)
1158 # No ld support yet.
1159 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1160 ;;
1161 ia64*-*-*vms*)
1162 # No ld support yet.
1163 noconfigdirs="$noconfigdirs libgui itcl ld"
1164 ;;
1165 i[[3456789]]86-w64-mingw*)
1166 ;;
1167 i[[3456789]]86-*-mingw*)
1168 target_configdirs="$target_configdirs target-winsup"
1169 ;;
1170 *-*-cygwin*)
1171 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1172 noconfigdirs="$noconfigdirs target-libgloss"
1173 # always build newlib if winsup directory is present.
1174 if test -d "$srcdir/winsup/cygwin"; then
1175 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1176 elif test -d "$srcdir/newlib"; then
1177 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1178 fi
1179 ;;
1180 i[[3456789]]86-*-pe)
1181 noconfigdirs="$noconfigdirs target-libgloss"
1182 ;;
1183 i[[3456789]]86-*-sco3.2v5*)
1184 # The linker does not yet know about weak symbols in COFF,
1185 # and is not configured to handle mixed ELF and COFF.
1186 noconfigdirs="$noconfigdirs ld target-libgloss"
1187 ;;
1188 i[[3456789]]86-*-sco*)
1189 noconfigdirs="$noconfigdirs gprof target-libgloss"
1190 ;;
1191 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1192 noconfigdirs="$noconfigdirs target-libgloss"
1193 ;;
1194 i[[3456789]]86-*-sysv4*)
1195 noconfigdirs="$noconfigdirs target-libgloss"
1196 ;;
1197 i[[3456789]]86-*-beos*)
1198 noconfigdirs="$noconfigdirs gdb"
1199 ;;
1200 i[[3456789]]86-*-rdos*)
1201 noconfigdirs="$noconfigdirs gdb"
1202 ;;
1203 mmix-*-*)
1204 noconfigdirs="$noconfigdirs gdb"
1205 ;;
1206 mt-*-*)
1207 noconfigdirs="$noconfigdirs sim"
1208 ;;
1209 nfp-*-*)
1210 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1211 noconfigdirs="$noconfigdirs $target_libraries"
1212 ;;
1213 pdp11-*-*)
1214 noconfigdirs="$noconfigdirs gdb gprof"
1215 ;;
1216 powerpc-*-aix*)
1217 # copied from rs6000-*-* entry
1218 noconfigdirs="$noconfigdirs gprof"
1219 ;;
1220 powerpc*-*-winnt* | powerpc*-*-pe*)
1221 target_configdirs="$target_configdirs target-winsup"
1222 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1223 # always build newlib.
1224 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1225 ;;
1226 # This is temporary until we can link against shared libraries
1227 powerpcle-*-solaris*)
1228 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1229 ;;
1230 powerpc-*-beos*)
1231 noconfigdirs="$noconfigdirs gdb"
1232 ;;
1233 rs6000-*-lynxos*)
1234 noconfigdirs="$noconfigdirs gprof"
1235 ;;
1236 rs6000-*-aix*)
1237 noconfigdirs="$noconfigdirs gprof"
1238 ;;
1239 rs6000-*-*)
1240 noconfigdirs="$noconfigdirs gprof"
1241 ;;
1242 m68k-apollo-*)
1243 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1244 ;;
1245 microblaze*)
1246 noconfigdirs="$noconfigdirs gprof"
1247 ;;
1248 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1249 if test x$with_newlib = xyes; then
1250 noconfigdirs="$noconfigdirs gprof"
1251 fi
1252 ;;
1253 mips*-*-irix5*)
1254 noconfigdirs="$noconfigdirs gprof target-libgloss"
1255 ;;
1256 mips*-*-irix6*)
1257 noconfigdirs="$noconfigdirs gprof target-libgloss"
1258 ;;
1259 mips*-*-bsd*)
1260 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1261 ;;
1262 mips*-*-linux*)
1263 ;;
1264 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1265 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1266 noconfigdirs="$noconfigdirs ld gas gprof"
1267 ;;
1268 mips*-*-*)
1269 noconfigdirs="$noconfigdirs gprof"
1270 ;;
1271 nvptx*-*-*)
1272 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1273 ;;
1274 sh-*-*)
1275 case "${target}" in
1276 sh*-*-elf)
1277 ;;
1278 *)
1279 noconfigdirs="$noconfigdirs target-libgloss" ;;
1280 esac
1281 ;;
1282 sparc-*-sunos4*)
1283 if test x${is_cross_compiler} = xno ; then
1284 use_gnu_ld=no
1285 fi
1286 ;;
1287 tic6x-*-*)
1288 noconfigdirs="$noconfigdirs sim"
1289 ;;
1290 tilepro*-*-* | tilegx*-*-*)
1291 noconfigdirs="$noconfigdirs sim"
1292 ;;
1293 v810-*-*)
1294 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1295 ;;
1296 vax-*-*)
1297 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1298 ;;
1299 wasm32-*-*)
1300 noconfigdirs="$noconfigdirs ld"
1301 ;;
1302 esac
1304 # If we aren't building newlib, then don't build libgloss, since libgloss
1305 # depends upon some newlib header files.
1306 case "${noconfigdirs}" in
1307 *target-libgloss*) ;;
1308 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1309 esac
1311 # Work in distributions that contain no compiler tools, like Autoconf.
1312 host_makefile_frag=/dev/null
1313 if test -d ${srcdir}/config ; then
1314 case "${host}" in
1315 i[[3456789]]86-*-msdosdjgpp*)
1316 host_makefile_frag="config/mh-djgpp"
1317 ;;
1318 *-cygwin*)
1319 ACX_CHECK_CYGWIN_CAT_WORKS
1320 host_makefile_frag="config/mh-cygwin"
1321 ;;
1322 *-mingw*)
1323 host_makefile_frag="config/mh-mingw"
1324 ;;
1325 alpha*-linux*)
1326 host_makefile_frag="config/mh-alpha-linux"
1327 ;;
1328 hppa*-hp-hpux10*)
1329 host_makefile_frag="config/mh-pa-hpux10"
1330 ;;
1331 hppa*-hp-hpux*)
1332 host_makefile_frag="config/mh-pa"
1333 ;;
1334 hppa*-*)
1335 host_makefile_frag="config/mh-pa"
1336 ;;
1337 *-*-darwin*)
1338 host_makefile_frag="config/mh-darwin"
1339 ;;
1340 powerpc-*-aix*)
1341 host_makefile_frag="config/mh-ppc-aix"
1342 ;;
1343 rs6000-*-aix*)
1344 host_makefile_frag="config/mh-ppc-aix"
1345 ;;
1346 esac
1347 fi
1349 if test "${build}" != "${host}" ; then
1350 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1351 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1352 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1353 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1354 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1355 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1356 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1357 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1358 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1359 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1360 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1361 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1362 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1363 else
1364 AR_FOR_BUILD="\$(AR)"
1365 AS_FOR_BUILD="\$(AS)"
1366 CC_FOR_BUILD="\$(CC)"
1367 CXX_FOR_BUILD="\$(CXX)"
1368 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1369 GOC_FOR_BUILD="\$(GOC)"
1370 GDC_FOR_BUILD="\$(GDC)"
1371 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1372 LD_FOR_BUILD="\$(LD)"
1373 NM_FOR_BUILD="\$(NM)"
1374 RANLIB_FOR_BUILD="\$(RANLIB)"
1375 WINDRES_FOR_BUILD="\$(WINDRES)"
1376 WINDMC_FOR_BUILD="\$(WINDMC)"
1377 fi
1379 AC_PROG_CC
1380 AC_PROG_CXX
1382 # We must set the default linker to the linker used by gcc for the correct
1383 # operation of libtool. If LD is not defined and we are using gcc, try to
1384 # set the LD default to the ld used by gcc.
1385 if test -z "$LD"; then
1386 if test "$GCC" = yes; then
1387 case $build in
1388 *-*-mingw*)
1389 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1390 *)
1391 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1392 esac
1393 case $gcc_prog_ld in
1394 # Accept absolute paths.
1395 [[\\/]* | [A-Za-z]:[\\/]*)]
1396 LD="$gcc_prog_ld" ;;
1397 esac
1398 fi
1399 fi
1401 # Check whether -static-libstdc++ -static-libgcc is supported.
1402 have_static_libs=no
1403 if test "$GCC" = yes; then
1404 saved_LDFLAGS="$LDFLAGS"
1406 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1407 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1408 AC_LANG_PUSH(C++)
1409 AC_LINK_IFELSE([AC_LANG_SOURCE([
1410 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1411 #error -static-libstdc++ not implemented
1412 #endif
1413 int main() {}])],
1414 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1415 [AC_MSG_RESULT([no])])
1416 AC_LANG_POP(C++)
1418 LDFLAGS="$saved_LDFLAGS"
1419 fi
1421 ACX_PROG_GNAT
1422 ACX_PROG_CMP_IGNORE_INITIAL
1424 AC_ARG_ENABLE([bootstrap],
1425 [AS_HELP_STRING([--enable-bootstrap],
1426 [enable bootstrapping @<:@yes if native build@:>@])],,
1427 enable_bootstrap=default)
1429 # Issue errors and warnings for invalid/strange bootstrap combinations.
1430 if test -r $srcdir/gcc/configure; then
1431 have_compiler=yes
1432 else
1433 have_compiler=no
1434 fi
1436 case "$have_compiler:$host:$target:$enable_bootstrap" in
1437 *:*:*:no) ;;
1439 # Default behavior. Enable bootstrap if we have a compiler
1440 # and we are in a native configuration.
1441 yes:$build:$build:default)
1442 enable_bootstrap=yes ;;
1444 *:*:*:default)
1445 enable_bootstrap=no ;;
1447 # We have a compiler and we are in a native configuration, bootstrap is ok
1448 yes:$build:$build:yes)
1449 ;;
1451 # Other configurations, but we have a compiler. Assume the user knows
1452 # what he's doing.
1453 yes:*:*:yes)
1454 AC_MSG_WARN([trying to bootstrap a cross compiler])
1455 ;;
1457 # No compiler: if they passed --enable-bootstrap explicitly, fail
1458 no:*:*:yes)
1459 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1461 # Fail if wrong command line
1462 *)
1463 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1464 ;;
1465 esac
1467 # When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
1468 # C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1469 # require C++11 (or higher).
1470 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1471 CXX="$CXX -std=c++11"
1472 elif test "$have_compiler" = yes; then
1473 AX_CXX_COMPILE_STDCXX(11)
1475 if test "${build}" != "${host}"; then
1476 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1477 fi
1478 fi
1480 # Used for setting $lt_cv_objdir
1481 _LT_CHECK_OBJDIR
1483 # Check for GMP, MPFR and MPC
1484 gmplibs="-lmpc -lmpfr -lgmp"
1485 gmpinc=
1486 have_gmp=no
1488 # Specify a location for mpc
1489 # check for this first so it ends up on the link line before mpfr.
1490 AC_ARG_WITH(mpc,
1491 [AS_HELP_STRING([--with-mpc=PATH],
1492 [specify prefix directory for installed MPC package.
1493 Equivalent to --with-mpc-include=PATH/include
1494 plus --with-mpc-lib=PATH/lib])])
1495 AC_ARG_WITH(mpc-include,
1496 [AS_HELP_STRING([--with-mpc-include=PATH],
1497 [specify directory for installed MPC include files])])
1498 AC_ARG_WITH(mpc-lib,
1499 [AS_HELP_STRING([--with-mpc-lib=PATH],
1500 [specify directory for the installed MPC library])])
1502 if test "x$with_mpc" != x; then
1503 gmplibs="-L$with_mpc/lib $gmplibs"
1504 gmpinc="-I$with_mpc/include $gmpinc"
1505 fi
1506 if test "x$with_mpc_include" != x; then
1507 gmpinc="-I$with_mpc_include $gmpinc"
1508 fi
1509 if test "x$with_mpc_lib" != x; then
1510 gmplibs="-L$with_mpc_lib $gmplibs"
1511 fi
1512 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1513 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1514 gmpinc='-I$$s/mpc/src '"$gmpinc"
1515 # Do not test the mpc version. Assume that it is sufficient, since
1516 # it is in the source tree, and the library has not been built yet
1517 # but it would be included on the link line in the version check below
1518 # hence making the test fail.
1519 have_gmp=yes
1520 fi
1522 # Specify a location for mpfr
1523 # check for this first so it ends up on the link line before gmp.
1524 AC_ARG_WITH(mpfr-dir,
1525 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1526 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1527 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1529 AC_ARG_WITH(mpfr,
1530 [AS_HELP_STRING([--with-mpfr=PATH],
1531 [specify prefix directory for installed MPFR package.
1532 Equivalent to --with-mpfr-include=PATH/include
1533 plus --with-mpfr-lib=PATH/lib])])
1534 AC_ARG_WITH(mpfr-include,
1535 [AS_HELP_STRING([--with-mpfr-include=PATH],
1536 [specify directory for installed MPFR include files])])
1537 AC_ARG_WITH(mpfr-lib,
1538 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1539 [specify directory for the installed MPFR library])])
1541 if test "x$with_mpfr" != x; then
1542 gmplibs="-L$with_mpfr/lib $gmplibs"
1543 gmpinc="-I$with_mpfr/include $gmpinc"
1544 fi
1545 if test "x$with_mpfr_include" != x; then
1546 gmpinc="-I$with_mpfr_include $gmpinc"
1547 fi
1548 if test "x$with_mpfr_lib" != x; then
1549 gmplibs="-L$with_mpfr_lib $gmplibs"
1550 fi
1551 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1552 # MPFR v3.1.0 moved the sources into a src sub-directory.
1553 if ! test -d ${srcdir}/mpfr/src; then
1554 AC_MSG_ERROR([dnl
1555 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1556 fi
1557 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1558 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1559 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1560 # Do not test the mpfr version. Assume that it is sufficient, since
1561 # it is in the source tree, and the library has not been built yet
1562 # but it would be included on the link line in the version check below
1563 # hence making the test fail.
1564 have_gmp=yes
1565 fi
1567 # Specify a location for gmp
1568 AC_ARG_WITH(gmp-dir,
1569 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1570 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1571 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1573 AC_ARG_WITH(gmp,
1574 [AS_HELP_STRING([--with-gmp=PATH],
1575 [specify prefix directory for the installed GMP package.
1576 Equivalent to --with-gmp-include=PATH/include
1577 plus --with-gmp-lib=PATH/lib])])
1578 AC_ARG_WITH(gmp-include,
1579 [AS_HELP_STRING([--with-gmp-include=PATH],
1580 [specify directory for installed GMP include files])])
1581 AC_ARG_WITH(gmp-lib,
1582 [AS_HELP_STRING([--with-gmp-lib=PATH],
1583 [specify directory for the installed GMP library])])
1586 if test "x$with_gmp" != x; then
1587 gmplibs="-L$with_gmp/lib $gmplibs"
1588 gmpinc="-I$with_gmp/include $gmpinc"
1589 fi
1590 if test "x$with_gmp_include" != x; then
1591 gmpinc="-I$with_gmp_include $gmpinc"
1592 fi
1593 if test "x$with_gmp_lib" != x; then
1594 gmplibs="-L$with_gmp_lib $gmplibs"
1595 fi
1596 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1597 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1598 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1599 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1600 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1601 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1602 # Do not test the gmp version. Assume that it is sufficient, since
1603 # it is in the source tree, and the library has not been built yet
1604 # but it would be included on the link line in the version check below
1605 # hence making the test fail.
1606 have_gmp=yes
1607 fi
1609 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1610 have_gmp=yes
1611 saved_CFLAGS="$CFLAGS"
1612 CFLAGS="$CFLAGS $gmpinc"
1613 # Check for the recommended and required versions of GMP.
1614 AC_MSG_CHECKING([for the correct version of gmp.h])
1615 AC_TRY_COMPILE([#include "gmp.h"],[
1616 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1617 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1618 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1619 choke me
1620 #endif
1621 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1622 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1623 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1624 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1625 choke me
1626 #endif
1627 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1628 [AC_MSG_RESULT([no]); have_gmp=no])
1630 # If we have GMP, check the MPFR version.
1631 if test x"$have_gmp" = xyes; then
1632 # Check for the recommended and required versions of MPFR.
1633 AC_MSG_CHECKING([for the correct version of mpfr.h])
1634 AC_TRY_COMPILE([#include <gmp.h>
1635 #include <mpfr.h>],[
1636 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
1637 choke me
1638 #endif
1639 ], [AC_TRY_COMPILE([#include <gmp.h>
1640 #include <mpfr.h>],[
1641 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
1642 choke me
1643 #endif
1644 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1645 [AC_MSG_RESULT([no]); have_gmp=no])
1646 fi
1648 # Check for the MPC header version.
1649 if test x"$have_gmp" = xyes ; then
1650 # Check for the recommended and required versions of MPC.
1651 AC_MSG_CHECKING([for the correct version of mpc.h])
1652 AC_TRY_COMPILE([#include <mpc.h>],[
1653 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1654 choke me
1655 #endif
1656 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1657 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1658 choke me
1659 #endif
1660 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1661 [AC_MSG_RESULT([no]); have_gmp=no])
1662 fi
1664 # Now check the MPFR library.
1665 if test x"$have_gmp" = xyes; then
1666 saved_LIBS="$LIBS"
1667 LIBS="$LIBS $gmplibs"
1668 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1669 AC_TRY_LINK([#include <mpc.h>],[
1670 mpfr_t n;
1671 mpfr_t x;
1672 mpc_t c;
1673 int t;
1674 mpfr_init (n);
1675 mpfr_init (x);
1676 mpfr_atan2 (n, n, x, MPFR_RNDN);
1677 mpfr_erfc (n, x, MPFR_RNDN);
1678 mpfr_subnormalize (x, t, MPFR_RNDN);
1679 mpfr_clear(n);
1680 mpfr_clear(x);
1681 mpc_init2 (c, 53);
1682 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1683 mpc_cosh (c, c, MPC_RNDNN);
1684 mpc_pow (c, c, c, MPC_RNDNN);
1685 mpc_acosh (c, c, MPC_RNDNN);
1686 mpc_clear (c);
1687 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1688 LIBS="$saved_LIBS"
1689 fi
1691 CFLAGS="$saved_CFLAGS"
1693 # The library versions listed in the error message below should match
1694 # the HARD-minimums enforced above.
1695 if test x$have_gmp != xyes; then
1696 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
1697 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1698 their locations. Source code for these libraries can be found at
1699 their respective hosting sites as well as at
1700 https://gcc.gnu.org/pub/gcc/infrastructure/. See also
1701 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1702 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1703 make sure that you have installed both the libraries and the header
1704 files. They may be located in separate packages.])
1705 fi
1706 fi
1708 # Flags needed for both GMP, MPFR and/or MPC.
1709 AC_SUBST(gmplibs)
1710 AC_SUBST(gmpinc)
1711 AC_SUBST(extra_mpfr_configure_flags)
1712 AC_SUBST(extra_mpc_gmp_configure_flags)
1713 AC_SUBST(extra_mpc_mpfr_configure_flags)
1714 AC_SUBST(extra_isl_gmp_configure_flags)
1716 # Libraries to use for stage1 or when not bootstrapping.
1717 AC_ARG_WITH(stage1-libs,
1718 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1719 [if test "$withval" = "no" -o "$withval" = "yes"; then
1720 stage1_libs=
1721 else
1722 stage1_libs=$withval
1723 fi],
1724 [stage1_libs=])
1725 AC_SUBST(stage1_libs)
1727 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1728 # default is yes if gcc is being built; no otherwise. The reason for
1729 # this default is that gdb is sometimes linked against GNU Source
1730 # Highlight, which is a shared library that uses C++ exceptions. In
1731 # this case, -static-libstdc++ will cause crashes.
1732 AC_ARG_WITH(static-standard-libraries,
1733 [AS_HELP_STRING([--with-static-standard-libraries],
1734 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1735 [], [with_static_standard_libraries=auto])
1736 if test "$with_static_standard_libraries" = auto; then
1737 with_static_standard_libraries=$have_compiler
1738 fi
1740 # Linker flags to use for stage1 or when not bootstrapping.
1741 AC_ARG_WITH(stage1-ldflags,
1742 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1743 [if test "$withval" = "no" -o "$withval" = "yes"; then
1744 stage1_ldflags=
1745 else
1746 stage1_ldflags=$withval
1747 fi],
1748 [stage1_ldflags=
1749 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1750 # if supported. But if the user explicitly specified the libraries to use,
1751 # trust that they are doing what they want.
1752 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1753 -a "$have_static_libs" = yes; then
1754 stage1_ldflags="-static-libstdc++ -static-libgcc"
1755 fi])
1756 AC_SUBST(stage1_ldflags)
1758 # Libraries to use for stage2 and later builds.
1759 AC_ARG_WITH(boot-libs,
1760 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1761 [if test "$withval" = "no" -o "$withval" = "yes"; then
1762 poststage1_libs=
1763 else
1764 poststage1_libs=$withval
1765 fi],
1766 [poststage1_libs=])
1767 AC_SUBST(poststage1_libs)
1769 # Linker flags to use for stage2 and later builds.
1770 AC_ARG_WITH(boot-ldflags,
1771 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1772 [linker flags for stage2 and later])],
1773 [if test "$withval" = "no" -o "$withval" = "yes"; then
1774 poststage1_ldflags=
1775 else
1776 poststage1_ldflags=$withval
1777 fi],
1778 [poststage1_ldflags=
1779 # In stages 2 and 3, default to linking libstdc++ and libgcc
1780 # statically. But if the user explicitly specified the libraries to
1781 # use, trust that they are doing what they want.
1782 if test "$poststage1_libs" = ""; then
1783 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1784 fi])
1785 AC_SUBST(poststage1_ldflags)
1787 # GCC GRAPHITE dependency isl.
1788 # Basic setup is inlined here, actual checks are in config/isl.m4
1790 AC_ARG_WITH(isl,
1791 [AS_HELP_STRING(
1792 [--with-isl=PATH],
1793 [Specify prefix directory for the installed isl package.
1794 Equivalent to --with-isl-include=PATH/include
1795 plus --with-isl-lib=PATH/lib])])
1797 # Treat --without-isl as a request to disable
1798 # GRAPHITE support and skip all following checks.
1799 if test "x$with_isl" != "xno"; then
1800 # Check for isl
1801 dnl Provide configure switches and initialize islinc & isllibs
1802 dnl with user input.
1803 ISL_INIT_FLAGS
1804 dnl The versions of isl that work for Graphite
1805 ISL_CHECK_VERSION()
1806 dnl Only execute fail-action, if isl has been requested.
1807 ISL_IF_FAILED([
1808 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1809 fi
1811 # If the isl check failed, disable builds of in-tree variant of isl
1812 if test "x$with_isl" = xno ||
1813 test "x$gcc_cv_isl" = xno; then
1814 noconfigdirs="$noconfigdirs isl"
1815 islinc=
1816 fi
1818 AC_SUBST(isllibs)
1819 AC_SUBST(islinc)
1821 # Check for LTO support.
1822 AC_ARG_ENABLE(lto,
1823 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1824 enable_lto=$enableval,
1825 enable_lto=yes; default_enable_lto=yes)
1827 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1828 build_lto_plugin=yes
1829 ],[if test x"$default_enable_lto" = x"yes" ; then
1830 case $target in
1831 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1832 # On other non-ELF platforms, LTO has yet to be validated.
1833 *) enable_lto=no ;;
1834 esac
1835 else
1836 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1837 # It would also be nice to check the binutils support, but we don't
1838 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1839 # warn during gcc/ subconfigure; unless you're bootstrapping with
1840 # -flto it won't be needed until after installation anyway.
1841 case $target in
1842 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1843 *) if test x"$enable_lto" = x"yes"; then
1844 AC_MSG_ERROR([LTO support is not enabled for this target.])
1845 fi
1846 ;;
1847 esac
1848 fi
1849 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1850 # Build it unless LTO was explicitly disabled.
1851 case $target in
1852 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1853 *) ;;
1854 esac
1855 ])
1857 AC_ARG_ENABLE(linker-plugin-configure-flags,
1858 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1859 [additional flags for configuring linker plugins @<:@none@:>@])],
1860 extra_linker_plugin_configure_flags=$enableval,
1861 extra_linker_plugin_configure_flags=)
1862 AC_SUBST(extra_linker_plugin_configure_flags)
1863 AC_ARG_ENABLE(linker-plugin-flags,
1864 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1865 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1866 extra_linker_plugin_flags=$enableval,
1867 extra_linker_plugin_flags=)
1868 AC_SUBST(extra_linker_plugin_flags)
1870 # Enable --enable-host-shared.
1871 # Checked early to determine whether jit is an 'all' language
1872 AC_ARG_ENABLE(host-shared,
1873 [AS_HELP_STRING([--enable-host-shared],
1874 [build host code as shared libraries])],
1875 [host_shared=$enableval], [host_shared=no])
1876 AC_SUBST(host_shared)
1878 # By default, C and C++ are the only stage 1 languages.
1879 stage1_languages=,c,
1881 # Target libraries that we bootstrap.
1882 bootstrap_target_libs=,target-libgcc,
1884 # Figure out what language subdirectories are present.
1885 # Look if the user specified --enable-languages="..."; if not, use
1886 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1887 # go away some day.
1888 # NB: embedded tabs in this IF block -- do not untabify
1889 if test -d ${srcdir}/gcc; then
1890 if test x"${enable_languages+set}" != xset; then
1891 if test x"${LANGUAGES+set}" = xset; then
1892 enable_languages="${LANGUAGES}"
1893 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1894 else
1895 enable_languages=default
1896 fi
1897 else
1898 if test x"${enable_languages}" = x ||
1899 test x"${enable_languages}" = xyes;
1900 then
1901 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1902 exit 1
1903 fi
1904 fi
1905 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1907 # 'f95' is the old name for the 'fortran' language. We issue a warning
1908 # and make the substitution.
1909 case ,${enable_languages}, in
1910 *,f95,*)
1911 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1912 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1913 ;;
1914 esac
1916 # If bootstrapping, C++ must be enabled.
1917 case ",$enable_languages,:$enable_bootstrap" in
1918 *,c++,*:*) ;;
1919 *:yes)
1920 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1921 enable_languages="${enable_languages},c++"
1922 else
1923 AC_MSG_ERROR([bootstrapping requires c++ sources])
1924 fi
1925 ;;
1926 esac
1928 # First scan to see if an enabled language requires some other language.
1929 # We assume that a given config-lang.in will list all the language
1930 # front ends it requires, even if some are required indirectly.
1931 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1932 case ${lang_frag} in
1933 ..) ;;
1934 # The odd quoting in the next line works around
1935 # an apparent bug in bash 1.12 on linux.
1936 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1937 *)
1938 # From the config-lang.in, get $language, $lang_requires, and
1939 # $lang_requires_boot_languages.
1940 language=
1941 lang_requires=
1942 lang_requires_boot_languages=
1943 # set srcdir during sourcing lang_frag to the gcc dir.
1944 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1945 # polutes this shell
1946 saved_srcdir=${srcdir}
1947 srcdir=${srcdir}/gcc . ${lang_frag}
1948 srcdir=${saved_srcdir}
1949 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1950 case ,${enable_languages}, in
1951 *,$other,*) ;;
1952 *,default,*) ;;
1953 *,all,*) ;;
1954 *,$language,*)
1955 echo " \`$other' language required by \`$language'; enabling" 1>&2
1956 enable_languages="${enable_languages},${other}"
1957 ;;
1958 esac
1959 done
1960 for other in ${lang_requires_boot_languages} ; do
1961 if test "$other" != "c"; then
1962 case ,${enable_stage1_languages}, in
1963 *,$other,*) ;;
1964 *,default,*) ;;
1965 *,all,*) ;;
1966 *)
1967 case ,${enable_languages}, in
1968 *,$language,*)
1969 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1970 enable_stage1_languages="$enable_stage1_languages,${other}"
1971 ;;
1972 esac
1973 ;;
1974 esac
1975 fi
1976 done
1977 ;;
1978 esac
1979 done
1981 new_enable_languages=,c,
1983 # If LTO is enabled, add the LTO front end.
1984 if test "$enable_lto" = "yes" ; then
1985 case ,${enable_languages}, in
1986 *,lto,*) ;;
1987 *) enable_languages="${enable_languages},lto" ;;
1988 esac
1989 if test "${build_lto_plugin}" = "yes" ; then
1990 configdirs="$configdirs lto-plugin"
1991 fi
1992 fi
1994 # If we're building an offloading compiler, add the LTO front end.
1995 if test x"$enable_as_accelerator_for" != x ; then
1996 case ,${enable_languages}, in
1997 *,lto,*) ;;
1998 *) enable_languages="${enable_languages},lto" ;;
1999 esac
2000 fi
2002 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
2003 potential_languages=,c,
2005 enabled_target_libs=
2006 disabled_target_libs=
2008 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2009 case ${lang_frag} in
2010 ..) ;;
2011 # The odd quoting in the next line works around
2012 # an apparent bug in bash 1.12 on linux.
2013 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2014 *)
2015 # From the config-lang.in, get $language, $target_libs,
2016 # $lang_dirs, $boot_language, and $build_by_default
2017 language=
2018 target_libs=
2019 lang_dirs=
2020 subdir_requires=
2021 boot_language=no
2022 build_by_default=yes
2023 # set srcdir during sourcing. See above about save & restore
2024 saved_srcdir=${srcdir}
2025 srcdir=${srcdir}/gcc . ${lang_frag}
2026 srcdir=${saved_srcdir}
2027 if test x${language} = x; then
2028 echo "${lang_frag} doesn't set \$language." 1>&2
2029 exit 1
2030 fi
2032 if test "$language" = "c++"; then
2033 boot_language=yes
2034 fi
2036 add_this_lang=no
2037 # C is always enabled, so no need to add it again
2038 if test "$language" != "c"; then
2039 case ,${enable_languages}, in
2040 *,${language},*)
2041 # Language was explicitly selected; include it
2042 add_this_lang=yes
2043 ;;
2044 *,all,*)
2045 # All languages are enabled
2046 add_this_lang=all
2047 ;;
2048 *,default,*)
2049 # 'default' was selected, select it if it is a default language
2050 add_this_lang=${build_by_default}
2051 ;;
2052 esac
2053 fi
2055 # Disable languages that need other directories if these aren't available.
2056 for i in $subdir_requires; do
2057 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2058 case ${add_this_lang} in
2059 yes)
2060 # Specifically requested language; tell them.
2061 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2062 ;;
2063 all)
2064 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2065 add_this_lang=unsupported
2066 ;;
2067 *)
2068 # Silently disable.
2069 add_this_lang=unsupported
2070 ;;
2071 esac
2072 done
2074 # Disable Ada if no preexisting GNAT is available.
2075 case ${add_this_lang}:${language}:${have_gnat} in
2076 yes:ada:no)
2077 # Specifically requested language; tell them.
2078 AC_MSG_ERROR([GNAT is required to build $language])
2079 ;;
2080 all:ada:no)
2081 AC_MSG_WARN([GNAT is required to build $language])
2082 add_this_lang=unsupported
2083 ;;
2084 *:ada:no)
2085 # Silently disable.
2086 add_this_lang=unsupported
2087 ;;
2088 esac
2090 # Disable jit if -enable-host-shared not specified
2091 # but not if building for Mingw. All code in Windows
2092 # is position independent code (PIC).
2093 case $target in
2094 *mingw*) ;;
2095 *)
2096 case ${add_this_lang}:${language}:${host_shared} in
2097 yes:jit:no)
2098 # PR jit/64780: explicitly specify --enable-host-shared
2099 AC_MSG_ERROR([
2100 Enabling language "jit" requires --enable-host-shared.
2102 --enable-host-shared typically slows the rest of the compiler down by
2103 a few %, so you must explicitly enable it.
2105 If you want to build both the jit and the regular compiler, it is often
2106 best to do this via two separate configure/builds, in separate
2107 directories, to avoid imposing the performance cost of
2108 --enable-host-shared on the regular compiler.])
2109 ;;
2110 all:jit:no)
2111 AC_MSG_WARN([--enable-host-shared required to build $language])
2112 add_this_lang=unsupported
2113 ;;
2114 *:jit:no)
2115 # Silently disable.
2116 add_this_lang=unsupported
2117 ;;
2118 esac
2119 ;;
2120 esac
2122 # Disable a language that is unsupported by the target.
2123 case "${add_this_lang}: $unsupported_languages " in
2124 no:*) ;;
2125 unsupported:*) ;;
2126 *:*" $language "*)
2127 AC_MSG_WARN([${language} not supported for this target])
2128 add_this_lang=unsupported
2129 ;;
2130 esac
2132 case $add_this_lang in
2133 unsupported)
2134 # Remove language-dependent dirs.
2135 disabled_target_libs="$disabled_target_libs $target_libs"
2136 noconfigdirs="$noconfigdirs $lang_dirs"
2137 ;;
2138 no)
2139 # Remove language-dependent dirs; still show language as supported.
2140 disabled_target_libs="$disabled_target_libs $target_libs"
2141 noconfigdirs="$noconfigdirs $lang_dirs"
2142 potential_languages="${potential_languages}${language},"
2143 ;;
2144 all|yes)
2145 new_enable_languages="${new_enable_languages}${language},"
2146 potential_languages="${potential_languages}${language},"
2147 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2148 enabled_target_libs="$enabled_target_libs $target_libs"
2149 case "${boot_language}:,$enable_stage1_languages," in
2150 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2151 # Add to (comma-separated) list of stage 1 languages.
2152 case ",$stage1_languages," in
2153 *,$language,* | ,yes, | ,all,) ;;
2154 *) stage1_languages="${stage1_languages}${language}," ;;
2155 esac
2156 # We need to bootstrap any supporting libraries.
2157 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2158 ;;
2159 esac
2160 ;;
2161 esac
2162 ;;
2163 esac
2164 done
2166 # Add target libraries which are only needed for disabled languages
2167 # to noconfigdirs.
2168 if test -n "$disabled_target_libs"; then
2169 for dir in $disabled_target_libs; do
2170 case " $enabled_target_libs " in
2171 *" ${dir} "*) ;;
2172 *) noconfigdirs="$noconfigdirs $dir" ;;
2173 esac
2174 done
2175 fi
2177 AC_ARG_ENABLE(stage1-languages,
2178 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2179 [choose additional languages to build during
2180 stage1. Mostly useful for compiler development])],
2181 [case ,${enable_stage1_languages}, in
2182 ,no,|,,)
2183 # Set it to something that will have no effect in the loop below
2184 enable_stage1_languages=c ;;
2185 ,yes,)
2186 enable_stage1_languages=`echo $new_enable_languages | \
2187 sed -e "s/^,//" -e "s/,$//" ` ;;
2188 *,all,*)
2189 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2190 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2191 esac
2193 # Add "good" languages from enable_stage1_languages to stage1_languages,
2194 # while "bad" languages go in missing_languages. Leave no duplicates.
2195 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2196 case $potential_languages in
2197 *,$i,*)
2198 case $stage1_languages in
2199 *,$i,*) ;;
2200 *) stage1_languages="$stage1_languages$i," ;;
2201 esac ;;
2202 *)
2203 case $missing_languages in
2204 *,$i,*) ;;
2205 *) missing_languages="$missing_languages$i," ;;
2206 esac ;;
2207 esac
2208 done])
2210 # Remove leading/trailing commas that were added for simplicity
2211 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2212 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2213 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2214 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2216 if test "x$missing_languages" != x; then
2217 AC_MSG_ERROR([
2218 The following requested languages could not be built: ${missing_languages}
2219 Supported languages are: ${potential_languages}])
2220 fi
2221 if test "x$new_enable_languages" != "x$enable_languages"; then
2222 echo The following languages will be built: ${new_enable_languages}
2223 enable_languages="$new_enable_languages"
2224 fi
2226 AC_SUBST(stage1_languages)
2227 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2228 fi
2230 # Handle --disable-<component> generically.
2231 for dir in $configdirs $build_configdirs $target_configdirs ; do
2232 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2233 varname=`echo $dirname | sed -e s/+/_/g`
2234 if eval test x\${enable_${varname}} "=" xno ; then
2235 noconfigdirs="$noconfigdirs $dir"
2236 fi
2237 done
2239 # Check for Boehm's garbage collector
2240 AC_ARG_ENABLE(objc-gc,
2241 [AS_HELP_STRING([--enable-objc-gc],
2242 [enable use of Boehm's garbage collector with the
2243 GNU Objective-C runtime])])
2244 AC_ARG_WITH([target-bdw-gc],
2245 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2246 [specify prefix directory for installed bdw-gc package.
2247 Equivalent to --with-target-bdw-gc-include=PATH/include
2248 plus --with-target-bdw-gc-lib=PATH/lib])])
2249 AC_ARG_WITH([target-bdw-gc-include],
2250 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2251 [specify directories for installed bdw-gc include files])])
2252 AC_ARG_WITH([target-bdw-gc-lib],
2253 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2254 [specify directories for installed bdw-gc library])])
2256 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2257 AC_MSG_CHECKING([for bdw garbage collector])
2258 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2259 dnl no bdw-gw options, assume default locations
2260 AC_MSG_RESULT([using bdw-gc in default locations])
2261 else
2262 dnl bdw-gw options, first error checking, complete checking in libobjc
2263 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2264 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2265 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2266 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2267 else
2268 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2269 fi
2270 fi
2271 esac
2273 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2274 case ,${enable_languages}, in
2275 *,c++,*)
2276 # Disable libitm, libsanitizer if we're not building libstdc++
2277 case "${noconfigdirs}" in
2278 *target-libstdc++-v3*)
2279 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2280 ;;
2281 *) ;;
2282 esac
2283 ;;
2284 *)
2285 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2286 ;;
2287 esac
2289 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2290 # $build_configdirs and $target_configdirs.
2291 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2293 notsupp=""
2294 for dir in . $skipdirs $noconfigdirs ; do
2295 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2296 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2297 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2298 if test -r $srcdir/$dirname/configure ; then
2299 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2300 true
2301 else
2302 notsupp="$notsupp $dir"
2303 fi
2304 fi
2305 fi
2306 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2307 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2308 if test -r $srcdir/$dirname/configure ; then
2309 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2310 true
2311 else
2312 notsupp="$notsupp $dir"
2313 fi
2314 fi
2315 fi
2316 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2317 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2318 if test -r $srcdir/$dirname/configure ; then
2319 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2320 true
2321 else
2322 notsupp="$notsupp $dir"
2323 fi
2324 fi
2325 fi
2326 done
2328 # Quietly strip out all directories which aren't configurable in this tree.
2329 # This relies on all configurable subdirectories being autoconfiscated, which
2330 # is now the case.
2331 build_configdirs_all="$build_configdirs"
2332 build_configdirs=
2333 for i in ${build_configdirs_all} ; do
2334 j=`echo $i | sed -e s/build-//g`
2335 if test -f ${srcdir}/$j/configure ; then
2336 build_configdirs="${build_configdirs} $i"
2337 fi
2338 done
2340 configdirs_all="$configdirs"
2341 configdirs=
2342 for i in ${configdirs_all} ; do
2343 if test -f ${srcdir}/$i/configure ; then
2344 configdirs="${configdirs} $i"
2345 fi
2346 done
2348 target_configdirs_all="$target_configdirs"
2349 target_configdirs=
2350 for i in ${target_configdirs_all} ; do
2351 j=`echo $i | sed -e s/target-//g`
2352 if test -f ${srcdir}/$j/configure ; then
2353 target_configdirs="${target_configdirs} $i"
2354 fi
2355 done
2357 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2358 # so we have to add it after the preceding checks.
2359 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2360 then
2361 case " $configdirs " in
2362 *" libiberty "*)
2363 # If we can build libiberty, we can also build libiberty-linker-plugin.
2364 configdirs="$configdirs libiberty-linker-plugin"
2365 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2366 --with-libiberty=../libiberty-linker-plugin";;
2367 *)
2368 AC_MSG_ERROR([libiberty missing]);;
2369 esac
2370 fi
2372 # Sometimes we have special requirements for the host libiberty.
2373 extra_host_libiberty_configure_flags=
2374 extra_host_zlib_configure_flags=
2375 case " $configdirs " in
2376 *" lto-plugin "* | *" libcc1 "*)
2377 # When these are to be built as shared libraries, the same applies to
2378 # libiberty.
2379 extra_host_libiberty_configure_flags=--enable-shared
2380 ;;
2381 *" bfd "*)
2382 # When bfd is to be built as a shared library, the same applies to
2383 # zlib.
2384 if test "$enable_shared" = "yes"; then
2385 extra_host_zlib_configure_flags=--enable-host-shared
2386 fi
2387 ;;
2388 esac
2389 AC_SUBST(extra_host_libiberty_configure_flags)
2390 AC_SUBST(extra_host_zlib_configure_flags)
2392 # Produce a warning message for the subdirs we can't configure.
2393 # This isn't especially interesting in the Cygnus tree, but in the individual
2394 # FSF releases, it's important to let people know when their machine isn't
2395 # supported by the one or two programs in a package.
2397 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2398 # If $appdirs is non-empty, at least one of those directories must still
2399 # be configured, or we error out. (E.g., if the gas release supports a
2400 # specified target in some subdirs but not the gas subdir, we shouldn't
2401 # pretend that all is well.)
2402 if test -n "$appdirs" ; then
2403 for dir in $appdirs ; do
2404 if test -r $dir/Makefile.in ; then
2405 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2406 appdirs=""
2407 break
2408 fi
2409 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2410 appdirs=""
2411 break
2412 fi
2413 fi
2414 done
2415 if test -n "$appdirs" ; then
2416 echo "*** This configuration is not supported by this package." 1>&2
2417 exit 1
2418 fi
2419 fi
2420 # Okay, some application will build, or we don't care to check. Still
2421 # notify of subdirs not getting built.
2422 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2423 echo " ${notsupp}" 1>&2
2424 echo " (Any other directories should still work fine.)" 1>&2
2425 fi
2427 case "$host" in
2428 *msdosdjgpp*)
2429 enable_gdbtk=no ;;
2430 esac
2432 # To find our prefix, in gcc_cv_tool_prefix.
2433 ACX_TOOL_DIRS
2435 copy_dirs=
2437 AC_ARG_WITH([build-sysroot],
2438 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2439 [use sysroot as the system root during the build])],
2440 [if test x"$withval" != x ; then
2441 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2442 fi],
2443 [SYSROOT_CFLAGS_FOR_TARGET=])
2444 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2446 AC_ARG_WITH([debug-prefix-map],
2447 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2448 [map A to B, C to D ... in debug information])],
2449 [if test x"$withval" != x; then
2450 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2451 for debug_map in $withval; do
2452 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2453 done
2454 fi],
2455 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2456 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2458 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2459 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2460 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2461 # We want to ensure that TARGET libraries (which we know are built with
2462 # gcc) are built with "-O2 -g", so include those options when setting
2463 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2464 if test "x$CFLAGS_FOR_TARGET" = x; then
2465 if test "x${is_cross_compiler}" = xyes; then
2466 CFLAGS_FOR_TARGET="-g -O2"
2467 else
2468 CFLAGS_FOR_TARGET=$CFLAGS
2469 case " $CFLAGS " in
2470 *" -O2 "*) ;;
2471 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2472 esac
2473 case " $CFLAGS " in
2474 *" -g "* | *" -g3 "*) ;;
2475 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2476 esac
2477 fi
2478 fi
2479 AC_SUBST(CFLAGS_FOR_TARGET)
2481 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2482 if test "x${is_cross_compiler}" = xyes; then
2483 CXXFLAGS_FOR_TARGET="-g -O2"
2484 else
2485 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2486 case " $CXXFLAGS " in
2487 *" -O2 "*) ;;
2488 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2489 esac
2490 case " $CXXFLAGS " in
2491 *" -g "* | *" -g3 "*) ;;
2492 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2493 esac
2494 fi
2495 fi
2496 AC_SUBST(CXXFLAGS_FOR_TARGET)
2498 AC_SUBST(LDFLAGS_FOR_TARGET)
2500 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2501 # the named directory are copied to $(tooldir)/sys-include.
2502 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2503 if test x${is_cross_compiler} = xno ; then
2504 echo 1>&2 '***' --with-headers is only supported when cross compiling
2505 exit 1
2506 fi
2507 if test x"${with_headers}" != xyes ; then
2508 x=${gcc_cv_tool_prefix}
2509 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2510 fi
2511 fi
2513 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2514 # the name directories are copied to $(tooldir)/lib. Multiple directories
2515 # are permitted.
2516 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2517 if test x${is_cross_compiler} = xno ; then
2518 echo 1>&2 '***' --with-libs is only supported when cross compiling
2519 exit 1
2520 fi
2521 if test x"${with_libs}" != xyes ; then
2522 # Copy the libraries in reverse order, so that files in the first named
2523 # library override files in subsequent libraries.
2524 x=${gcc_cv_tool_prefix}
2525 for l in ${with_libs}; do
2526 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2527 done
2528 fi
2529 fi
2531 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2532 #
2533 # This is done by determining whether or not the appropriate directory
2534 # is available, and by checking whether or not specific configurations
2535 # have requested that this magic not happen.
2536 #
2537 # The command line options always override the explicit settings in
2538 # configure.ac, and the settings in configure.ac override this magic.
2539 #
2540 # If the default for a toolchain is to use GNU as and ld, and you don't
2541 # want to do that, then you should use the --without-gnu-as and
2542 # --without-gnu-ld options for the configure script. Similarly, if
2543 # the default is to use the included zlib and you don't want to do that,
2544 # you should use the --with-system-zlib option for the configure script.
2546 if test x${use_gnu_as} = x &&
2547 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2548 with_gnu_as=yes
2549 extra_host_args="$extra_host_args --with-gnu-as"
2550 fi
2552 if test x${use_gnu_ld} = x &&
2553 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2554 with_gnu_ld=yes
2555 extra_host_args="$extra_host_args --with-gnu-ld"
2556 fi
2558 if test x${use_included_zlib} = x &&
2559 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2560 :
2561 else
2562 with_system_zlib=yes
2563 extra_host_args="$extra_host_args --with-system-zlib"
2564 fi
2566 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2567 # can detect this case.
2569 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2570 with_newlib=yes
2571 extra_host_args="$extra_host_args --with-newlib"
2572 fi
2574 # Handle ${copy_dirs}
2575 set fnord ${copy_dirs}
2576 shift
2577 while test $# != 0 ; do
2578 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2579 :
2580 else
2581 echo Copying $1 to $2
2583 # Use the install script to create the directory and all required
2584 # parent directories.
2585 if test -d $2 ; then
2586 :
2587 else
2588 echo >config.temp
2589 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2590 fi
2592 # Copy the directory, assuming we have tar.
2593 # FIXME: Should we use B in the second tar? Not all systems support it.
2594 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2596 # It is the responsibility of the user to correctly adjust all
2597 # symlinks. If somebody can figure out how to handle them correctly
2598 # here, feel free to add the code.
2600 echo $1 > $2/COPIED
2601 fi
2602 shift; shift
2603 done
2605 # Determine a target-dependent exec_prefix that the installed
2606 # gcc will search in. Keep this list sorted by triplet, with
2607 # the *-*-osname triplets last.
2608 md_exec_prefix=
2609 case "${target}" in
2610 i[[34567]]86-pc-msdosdjgpp*)
2611 md_exec_prefix=/dev/env/DJDIR/bin
2612 ;;
2613 *-*-hpux* | \
2614 *-*-nto-qnx* | \
2615 *-*-solaris2*)
2616 md_exec_prefix=/usr/ccs/bin
2617 ;;
2618 esac
2620 extra_arflags_for_target=
2621 extra_nmflags_for_target=
2622 extra_ranlibflags_for_target=
2623 target_makefile_frag=/dev/null
2624 case "${target}" in
2625 spu-*-*)
2626 target_makefile_frag="config/mt-spu"
2627 ;;
2628 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2629 target_makefile_frag="config/mt-sde"
2630 ;;
2631 mipsisa*-*-elfoabi*)
2632 target_makefile_frag="config/mt-mips-elfoabi"
2633 ;;
2634 mips*-*-*linux* | mips*-*-gnu*)
2635 target_makefile_frag="config/mt-mips-gnu"
2636 ;;
2637 nios2-*-elf*)
2638 target_makefile_frag="config/mt-nios2-elf"
2639 ;;
2640 *-*-linux-android*)
2641 target_makefile_frag="config/mt-android"
2642 ;;
2643 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2644 target_makefile_frag="config/mt-gnu"
2645 ;;
2646 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2647 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2648 # commands to handle both 32-bit and 64-bit objects. These flags are
2649 # harmless if we're using GNU nm or ar.
2650 extra_arflags_for_target=" -X32_64"
2651 extra_nmflags_for_target=" -B -X32_64"
2652 ;;
2653 esac
2655 alphaieee_frag=/dev/null
2656 case $target in
2657 alpha*-*-*)
2658 # This just makes sure to use the -mieee option to build target libs.
2659 # This should probably be set individually by each library.
2660 alphaieee_frag="config/mt-alphaieee"
2661 ;;
2662 esac
2664 # If --enable-target-optspace always use -Os instead of -O2 to build
2665 # the target libraries, similarly if it is not specified, use -Os
2666 # on selected platforms.
2667 ospace_frag=/dev/null
2668 case "${enable_target_optspace}:${target}" in
2669 yes:*)
2670 ospace_frag="config/mt-ospace"
2671 ;;
2672 :d30v-*)
2673 ospace_frag="config/mt-d30v"
2674 ;;
2675 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2676 ospace_frag="config/mt-ospace"
2677 ;;
2678 no:* | :*)
2679 ;;
2680 *)
2681 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2682 ;;
2683 esac
2685 # Some systems (e.g., one of the i386-aix systems the gas testers are
2686 # using) don't handle "\$" correctly, so don't use it here.
2687 tooldir='${exec_prefix}'/${target_noncanonical}
2688 build_tooldir=${tooldir}
2690 # Create a .gdbinit file which runs the one in srcdir
2691 # and tells GDB to look there for source files.
2693 if test -r ${srcdir}/.gdbinit ; then
2694 case ${srcdir} in
2695 .) ;;
2696 *) cat > ./.gdbinit <<EOF
2697 # ${NO_EDIT}
2698 dir ${srcdir}
2699 dir .
2700 source ${srcdir}/.gdbinit
2701 EOF
2702 ;;
2703 esac
2704 fi
2706 # Make sure that the compiler is able to generate an executable. If it
2707 # can't, we are probably in trouble. We don't care whether we can run the
2708 # executable--we might be using a cross compiler--we only care whether it
2709 # can be created. At this point the main configure script has set CC.
2710 we_are_ok=no
2711 echo "int main () { return 0; }" > conftest.c
2712 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2713 if test $? = 0 ; then
2714 if test -s conftest || test -s conftest.exe ; then
2715 we_are_ok=yes
2716 fi
2717 fi
2718 case $we_are_ok in
2719 no)
2720 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2721 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2722 rm -f conftest*
2723 exit 1
2724 ;;
2725 esac
2726 rm -f conftest*
2728 # Decide which environment variable is used to find dynamic libraries.
2729 case "${host}" in
2730 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2731 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2732 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2733 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2734 esac
2736 # On systems where the dynamic library environment variable is PATH,
2737 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2738 # built executables to PATH.
2739 if test "$RPATH_ENVVAR" = PATH; then
2740 GCC_SHLIB_SUBDIR=/shlib
2741 else
2742 GCC_SHLIB_SUBDIR=
2743 fi
2745 # Adjust the toplevel makefile according to whether bootstrap was selected.
2746 case $enable_bootstrap in
2747 yes)
2748 bootstrap_suffix=bootstrap
2749 BUILD_CONFIG=bootstrap-debug
2750 ;;
2751 no)
2752 bootstrap_suffix=no-bootstrap
2753 BUILD_CONFIG=
2754 ;;
2755 esac
2757 AC_MSG_CHECKING(for default BUILD_CONFIG)
2759 AC_ARG_WITH([build-config],
2760 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2761 [use config/NAME.mk build configuration])],
2762 [case $with_build_config in
2763 yes) with_build_config= ;;
2764 no) with_build_config= BUILD_CONFIG= ;;
2765 esac])
2767 if test "x${with_build_config}" != x; then
2768 BUILD_CONFIG=$with_build_config
2769 else
2770 case $BUILD_CONFIG in
2771 bootstrap-debug)
2772 if echo "int f (void) { return 0; }" > conftest.c &&
2773 ${CC} -c conftest.c &&
2774 mv conftest.o conftest.o.g0 &&
2775 ${CC} -c -g conftest.c &&
2776 mv conftest.o conftest.o.g &&
2777 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2778 :
2779 else
2780 BUILD_CONFIG=
2781 fi
2782 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2783 ;;
2784 esac
2785 fi
2786 AC_MSG_RESULT($BUILD_CONFIG)
2787 AC_SUBST(BUILD_CONFIG)
2789 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2790 AC_MSG_CHECKING([for --enable-vtable-verify])
2791 AC_ARG_ENABLE(vtable-verify,
2792 [AS_HELP_STRING([--enable-vtable-verify],
2793 [Enable vtable verification feature])],
2794 [case "$enableval" in
2795 yes) enable_vtable_verify=yes ;;
2796 no) enable_vtable_verify=no ;;
2797 *) enable_vtable_verify=no;;
2798 esac],
2799 [enable_vtable_verify=no])
2800 AC_MSG_RESULT($enable_vtable_verify)
2802 # Record target_configdirs and the configure arguments for target and
2803 # build configuration in Makefile.
2804 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2805 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2806 bootstrap_fixincludes=no
2808 # If we are building libgomp, bootstrap it.
2809 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2810 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2811 fi
2813 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2814 # or bootstrap-ubsan, bootstrap it.
2815 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2816 case "$BUILD_CONFIG" in
2817 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
2818 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2819 bootstrap_fixincludes=yes
2820 ;;
2821 esac
2822 fi
2824 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2825 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2826 test "$enable_vtable_verify" != no; then
2827 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2828 fi
2830 # Determine whether gdb needs tk/tcl or not.
2831 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2832 # and in that case we want gdb to be built without tk. Ugh!
2833 # In fact I believe gdb is the *only* package directly dependent on tk,
2834 # so we should be able to put the 'maybe's in unconditionally and
2835 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2836 # 100% sure that that's safe though.
2838 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2839 case "$enable_gdbtk" in
2840 no)
2841 GDB_TK="" ;;
2842 yes)
2843 GDB_TK="${gdb_tk}" ;;
2844 *)
2845 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2846 # distro. Eventually someone will fix this and move Insight, nee
2847 # gdbtk to a separate directory.
2848 if test -d ${srcdir}/gdb/gdbtk ; then
2849 GDB_TK="${gdb_tk}"
2850 else
2851 GDB_TK=""
2852 fi
2853 ;;
2854 esac
2855 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2856 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2858 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
2859 # else does, only include them if one of these is built. The Makefile
2860 # provides the ordering, so it's enough here to add to the list.
2861 case " ${configdirs} " in
2862 *\ gdb\ *)
2863 configdirs="${configdirs} gnulib gdbsupport"
2864 ;;
2865 *\ gdbserver\ *)
2866 configdirs="${configdirs} gnulib gdbsupport"
2867 ;;
2868 esac
2870 # Strip out unwanted targets.
2872 # While at that, we remove Makefiles if we were started for recursive
2873 # configuration, so that the top-level Makefile reconfigures them,
2874 # like we used to do when configure itself was recursive.
2876 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2877 # but now we're fixing up the Makefile ourselves with the additional
2878 # commands passed to AC_CONFIG_FILES. Use separate variables
2879 # extrasub-{build,host,target} not because there is any reason to split
2880 # the substitutions up that way, but only to remain below the limit of
2881 # 99 commands in a script, for HP-UX sed.
2883 # Do not nest @if/@endif or @unless/@endunless pairs, because
2884 # configure will not warn you at all.
2886 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2887 yes:yes:*\ gold\ *:*,c++,*) ;;
2888 yes:yes:*\ gold\ *:*)
2889 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2890 ;;
2891 esac
2893 extrasub_build=
2894 for module in ${build_configdirs} ; do
2895 if test -z "${no_recursion}" \
2896 && test -f ${build_subdir}/${module}/Makefile; then
2897 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2898 rm -f ${build_subdir}/${module}/Makefile
2899 fi
2900 extrasub_build="$extrasub_build
2901 /^@if build-$module\$/d
2902 /^@endif build-$module\$/d
2903 /^@unless build-$module\$/,/^@endunless build-$module\$/d
2904 /^@if build-$module-$bootstrap_suffix\$/d
2905 /^@endif build-$module-$bootstrap_suffix\$/d
2906 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
2907 done
2908 extrasub_host=
2909 for module in ${configdirs} ; do
2910 if test -z "${no_recursion}"; then
2911 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2912 if test -f ${file}; then
2913 echo 1>&2 "*** removing ${file} to force reconfigure"
2914 rm -f ${file}
2915 fi
2916 done
2917 fi
2918 case ${module},${bootstrap_fixincludes} in
2919 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2920 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2921 esac
2922 extrasub_host="$extrasub_host
2923 /^@if $module\$/d
2924 /^@endif $module\$/d
2925 /^@unless $module\$/,/^@endunless $module\$/d
2926 /^@if $module-$host_bootstrap_suffix\$/d
2927 /^@endif $module-$host_bootstrap_suffix\$/d
2928 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
2929 done
2930 extrasub_target=
2931 for module in ${target_configdirs} ; do
2932 if test -z "${no_recursion}" \
2933 && test -f ${target_subdir}/${module}/Makefile; then
2934 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2935 rm -f ${target_subdir}/${module}/Makefile
2936 fi
2938 # We only bootstrap target libraries listed in bootstrap_target_libs.
2939 case $bootstrap_target_libs in
2940 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2941 *) target_bootstrap_suffix=no-bootstrap ;;
2942 esac
2944 extrasub_target="$extrasub_target
2945 /^@if target-$module\$/d
2946 /^@endif target-$module\$/d
2947 /^@unless target-$module\$/,/^@endunless target-$module\$/d
2948 /^@if target-$module-$target_bootstrap_suffix\$/d
2949 /^@endif target-$module-$target_bootstrap_suffix\$/d
2950 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
2951 done
2953 # Do the final fixup along with target modules.
2954 extrasub_target="$extrasub_target
2955 /^@if /,/^@endif /d
2956 /^@unless /d
2957 /^@endunless /d"
2959 # Create the serialization dependencies. This uses a temporary file.
2961 AC_ARG_ENABLE([serial-configure],
2962 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2963 [force sequential configuration of
2964 sub-packages for the host, target or build
2965 machine, or all sub-packages])])
2967 case ${enable_serial_configure} in
2968 yes)
2969 enable_serial_build_configure=yes
2970 enable_serial_host_configure=yes
2971 enable_serial_target_configure=yes
2972 ;;
2973 esac
2975 # These force 'configure's to be done one at a time, to avoid problems
2976 # with contention over a shared config.cache.
2977 rm -f serdep.tmp
2978 echo '# serdep.tmp' > serdep.tmp
2979 olditem=
2980 test "x${enable_serial_build_configure}" = xyes &&
2981 for item in ${build_configdirs} ; do
2982 case ${olditem} in
2983 "") ;;
2984 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2985 esac
2986 olditem=${item}
2987 done
2988 olditem=
2989 test "x${enable_serial_host_configure}" = xyes &&
2990 for item in ${configdirs} ; do
2991 case ${olditem} in
2992 "") ;;
2993 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2994 esac
2995 olditem=${item}
2996 done
2997 olditem=
2998 test "x${enable_serial_target_configure}" = xyes &&
2999 for item in ${target_configdirs} ; do
3000 case ${olditem} in
3001 "") ;;
3002 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
3003 esac
3004 olditem=${item}
3005 done
3006 serialization_dependencies=serdep.tmp
3007 AC_SUBST_FILE(serialization_dependencies)
3009 # Base args. Strip norecursion, cache-file, srcdir, host, build,
3010 # target, nonopt, and variable assignments. These are the ones we
3011 # might not want to pass down to subconfigures. The exception being
3012 # --cache-file=/dev/null, which is used to turn off the use of cache
3013 # files altogether, and which should be passed on to subconfigures.
3014 # Also strip program-prefix, program-suffix, and program-transform-name,
3015 # so that we can pass down a consistent program-transform-name.
3016 baseargs=
3017 tbaseargs=
3018 keep_next=no
3019 skip_next=no
3020 eval "set -- $ac_configure_args"
3021 for ac_arg
3022 do
3023 if test X"$skip_next" = X"yes"; then
3024 skip_next=no
3025 continue
3026 fi
3027 if test X"$keep_next" = X"yes"; then
3028 case $ac_arg in
3029 *\'*)
3030 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3031 esac
3032 baseargs="$baseargs '$ac_arg'"
3033 tbaseargs="$tbaseargs '$ac_arg'"
3034 keep_next=no
3035 continue
3036 fi
3038 # Handle separated arguments. Based on the logic generated by
3039 # autoconf 2.59.
3040 case $ac_arg in
3041 *=* | --config-cache | -C | -disable-* | --disable-* \
3042 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3043 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3044 | -with-* | --with-* | -without-* | --without-* | --x)
3045 separate_arg=no
3046 ;;
3047 -*)
3048 separate_arg=yes
3049 ;;
3050 *)
3051 separate_arg=no
3052 ;;
3053 esac
3055 skip_targ=no
3056 case $ac_arg in
3057 changequote(,)
3058 --with-* | --without-*)
3059 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3061 case $libopt in
3062 *[-_]include)
3063 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3064 ;;
3065 *[-_]lib)
3066 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3067 ;;
3068 *)
3069 lib=$libopt
3070 ;;
3071 esac
3072 changequote([,])
3074 case $lib in
3075 mpc | mpfr | gmp | isl)
3076 # If we're processing --with-$lib, --with-$lib-include or
3077 # --with-$lib-lib, for one of the libs above, and target is
3078 # different from host, don't pass the current argument to any
3079 # target library's configure.
3080 if test x$is_cross_compiler = xyes; then
3081 skip_targ=yes
3082 fi
3083 ;;
3084 esac
3085 ;;
3086 esac
3088 case "$ac_arg" in
3089 --cache-file=/dev/null | \
3090 -cache-file=/dev/null )
3091 # Handled here to avoid the test to skip args below.
3092 baseargs="$baseargs '$ac_arg'"
3093 tbaseargs="$tbaseargs '$ac_arg'"
3094 # Assert: $separate_arg should always be no.
3095 keep_next=$separate_arg
3096 ;;
3097 --no*)
3098 continue
3099 ;;
3100 --c* | \
3101 --sr* | \
3102 --ho* | \
3103 --bu* | \
3104 --t* | \
3105 --program-* | \
3106 -cache_file* | \
3107 -srcdir* | \
3108 -host* | \
3109 -build* | \
3110 -target* | \
3111 -program-prefix* | \
3112 -program-suffix* | \
3113 -program-transform-name* )
3114 skip_next=$separate_arg
3115 continue
3116 ;;
3117 -*)
3118 # An option. Add it.
3119 case $ac_arg in
3120 *\'*)
3121 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3122 esac
3123 baseargs="$baseargs '$ac_arg'"
3124 if test X"$skip_targ" = Xno; then
3125 tbaseargs="$tbaseargs '$ac_arg'"
3126 fi
3127 keep_next=$separate_arg
3128 ;;
3129 *)
3130 # Either a variable assignment, or a nonopt (triplet). Don't
3131 # pass it down; let the Makefile handle this.
3132 continue
3133 ;;
3134 esac
3135 done
3136 # Remove the initial space we just introduced and, as these will be
3137 # expanded by make, quote '$'.
3138 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3140 # Add in --program-transform-name, after --program-prefix and
3141 # --program-suffix have been applied to it. Autoconf has already
3142 # doubled dollar signs and backslashes in program_transform_name; we want
3143 # the backslashes un-doubled, and then the entire thing wrapped in single
3144 # quotes, because this will be expanded first by make and then by the shell.
3145 # Also, because we want to override the logic in subdir configure scripts to
3146 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3147 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3148 ${program_transform_name}
3149 EOF_SED
3150 gcc_transform_name=`cat conftestsed.out`
3151 rm -f conftestsed.out
3152 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3153 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3154 if test "$silent" = yes; then
3155 baseargs="$baseargs --silent"
3156 tbaseargs="$tbaseargs --silent"
3157 fi
3158 baseargs="$baseargs --disable-option-checking"
3159 tbaseargs="$tbaseargs --disable-option-checking"
3161 # Record and document user additions to sub configure arguments.
3162 AC_ARG_VAR([build_configargs],
3163 [additional configure arguments for build directories])
3164 AC_ARG_VAR([host_configargs],
3165 [additional configure arguments for host directories])
3166 AC_ARG_VAR([target_configargs],
3167 [additional configure arguments for target directories])
3169 # For the build-side libraries, we just need to pretend we're native,
3170 # and not use the same cache file. Multilibs are neither needed nor
3171 # desired. We can't even use the same cache file for all build-side
3172 # libraries, as they're compiled differently; some with C, some with
3173 # C++ or with different feature-enabling options.
3174 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3176 # For host modules, accept cache file option, or specification as blank.
3177 case "${cache_file}" in
3178 "") # empty
3179 cache_file_option="" ;;
3180 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3181 cache_file_option="--cache-file=${cache_file}" ;;
3182 *) # relative path
3183 cache_file_option="--cache-file=../${cache_file}" ;;
3184 esac
3186 # Host dirs don't like to share a cache file either, horribly enough.
3187 # This seems to be due to autoconf 2.5x stupidity.
3188 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3190 target_configargs="$target_configargs ${tbaseargs}"
3192 # Passing a --with-cross-host argument lets the target libraries know
3193 # whether they are being built with a cross-compiler or being built
3194 # native. However, it would be better to use other mechanisms to make the
3195 # sorts of decisions they want to make on this basis. Please consider
3196 # this option to be deprecated. FIXME.
3197 if test x${is_cross_compiler} = xyes ; then
3198 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3199 fi
3201 # Special user-friendly check for native x86_64-linux build, if
3202 # multilib is not explicitly enabled.
3203 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3204 x86_64-*linux*:yes:$build:$build:)
3205 # Make sure we have a development environment that handles 32-bit
3206 dev64=no
3207 echo "int main () { return 0; }" > conftest.c
3208 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3209 if test $? = 0 ; then
3210 if test -s conftest || test -s conftest.exe ; then
3211 dev64=yes
3212 fi
3213 fi
3214 rm -f conftest*
3215 if test x${dev64} != xyes ; then
3216 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.])
3217 fi
3218 ;;
3219 esac
3221 # Default to --enable-multilib.
3222 if test x${enable_multilib} = x ; then
3223 target_configargs="--enable-multilib ${target_configargs}"
3224 fi
3226 # Pass --with-newlib if appropriate. Note that target_configdirs has
3227 # changed from the earlier setting of with_newlib.
3228 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3229 target_configargs="--with-newlib ${target_configargs}"
3230 fi
3232 # Different target subdirs use different values of certain variables
3233 # (notably CXX). Worse, multilibs use *lots* of different values.
3234 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3235 # it doesn't automatically accept command-line overrides of them.
3236 # This means it's not safe for target subdirs to share a cache file,
3237 # which is disgusting, but there you have it. Hopefully this can be
3238 # fixed in future. It's still worthwhile to use a cache file for each
3239 # directory. I think.
3241 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3242 # We need to pass --target, as newer autoconf's requires consistency
3243 # for target_alias and gcc doesn't manage it consistently.
3244 target_configargs="--cache-file=./config.cache ${target_configargs}"
3246 FLAGS_FOR_TARGET=
3247 case " $target_configdirs " in
3248 *" newlib "*)
3249 case " $target_configargs " in
3250 *" --with-newlib "*)
3251 case "$target" in
3252 *-cygwin*)
3253 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3254 ;;
3255 esac
3257 # If we're not building GCC, don't discard standard headers.
3258 if test -d ${srcdir}/gcc; then
3259 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3261 if test "${build}" != "${host}"; then
3262 # On Canadian crosses, CC_FOR_TARGET will have already been set
3263 # by `configure', so we won't have an opportunity to add -Bgcc/
3264 # to it. This is right: we don't want to search that directory
3265 # for binaries, but we want the header files in there, so add
3266 # them explicitly.
3267 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3269 # Someone might think of using the pre-installed headers on
3270 # Canadian crosses, in case the installed compiler is not fully
3271 # compatible with the compiler being built. In this case, it
3272 # would be better to flag an error than risking having
3273 # incompatible object files being constructed. We can't
3274 # guarantee that an error will be flagged, but let's hope the
3275 # compiler will do it, when presented with incompatible header
3276 # files.
3277 fi
3278 fi
3280 case "${target}-${is_cross_compiler}" in
3281 i[[3456789]]86-*-linux*-no)
3282 # Here host == target, so we don't need to build gcc,
3283 # so we don't want to discard standard headers.
3284 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3285 ;;
3286 *)
3287 # If we're building newlib, use its generic headers last, but search
3288 # for any libc-related directories first (so make it the last -B
3289 # switch).
3290 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3292 # If we're building libgloss, find the startup file, simulator library
3293 # and linker script.
3294 case " $target_configdirs " in
3295 *" libgloss "*)
3296 # Look for startup file, simulator library and maybe linker script.
3297 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3298 # Look for libnosys.a in case the target needs it.
3299 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3300 # Most targets have the linker script in the source directory.
3301 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3302 ;;
3303 esac
3304 ;;
3305 esac
3306 ;;
3307 esac
3308 ;;
3309 esac
3311 case "$target" in
3312 x86_64-*mingw* | *-w64-mingw*)
3313 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3314 # however, use a symlink named 'mingw' in ${prefix} .
3315 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3316 ;;
3317 *-mingw*)
3318 # MinGW can't be handled as Cygwin above since it does not use newlib.
3319 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3320 ;;
3321 esac
3323 # Allow the user to override the flags for
3324 # our build compiler if desired.
3325 if test x"${build}" = x"${host}" ; then
3326 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3327 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3328 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3329 fi
3331 # On Canadian crosses, we'll be searching the right directories for
3332 # the previously-installed cross compiler, so don't bother to add
3333 # flags for directories within the install tree of the compiler
3334 # being built; programs in there won't even run.
3335 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3336 # Search for pre-installed headers if nothing else fits.
3337 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3338 fi
3340 if test "x${use_gnu_ld}" = x &&
3341 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3342 # Arrange for us to find uninstalled linker scripts.
3343 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3344 fi
3346 # Search for other target-specific linker scripts and such.
3347 case "${target}" in
3348 mep*)
3349 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3350 ;;
3351 esac
3353 # Makefile fragments.
3354 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3355 do
3356 eval fragval=\$$frag
3357 if test $fragval != /dev/null; then
3358 eval $frag=${srcdir}/$fragval
3359 fi
3360 done
3361 AC_SUBST_FILE(host_makefile_frag)
3362 AC_SUBST_FILE(target_makefile_frag)
3363 AC_SUBST_FILE(alphaieee_frag)
3364 AC_SUBST_FILE(ospace_frag)
3366 # Miscellanea: directories, flags, etc.
3367 AC_SUBST(RPATH_ENVVAR)
3368 AC_SUBST(GCC_SHLIB_SUBDIR)
3369 AC_SUBST(tooldir)
3370 AC_SUBST(build_tooldir)
3371 AC_SUBST(CONFIGURE_GDB_TK)
3372 AC_SUBST(GDB_TK)
3373 AC_SUBST(INSTALL_GDB_TK)
3375 # Build module lists & subconfigure args.
3376 AC_SUBST(build_configargs)
3377 AC_SUBST(build_configdirs)
3379 # Host module lists & subconfigure args.
3380 AC_SUBST(host_configargs)
3381 AC_SUBST(configdirs)
3382 AC_SUBST(target_configdirs)
3384 # Target module lists & subconfigure args.
3385 AC_SUBST(target_configargs)
3388 # Build tools.
3389 AC_SUBST(AR_FOR_BUILD)
3390 AC_SUBST(AS_FOR_BUILD)
3391 AC_SUBST(CC_FOR_BUILD)
3392 AC_SUBST(CFLAGS_FOR_BUILD)
3393 AC_SUBST(CXXFLAGS_FOR_BUILD)
3394 AC_SUBST(CXX_FOR_BUILD)
3395 AC_SUBST(DLLTOOL_FOR_BUILD)
3396 AC_SUBST(GFORTRAN_FOR_BUILD)
3397 AC_SUBST(GOC_FOR_BUILD)
3398 AC_SUBST(GDC_FOR_BUILD)
3399 AC_SUBST(LDFLAGS_FOR_BUILD)
3400 AC_SUBST(LD_FOR_BUILD)
3401 AC_SUBST(NM_FOR_BUILD)
3402 AC_SUBST(RANLIB_FOR_BUILD)
3403 AC_SUBST(WINDMC_FOR_BUILD)
3404 AC_SUBST(WINDRES_FOR_BUILD)
3406 # Generate default definitions for YACC, M4, LEX and other programs that run
3407 # on the build machine. These are used if the Makefile can't locate these
3408 # programs in objdir.
3409 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3411 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3412 case " $build_configdirs " in
3413 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3414 esac
3416 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3417 case " $build_configdirs " in
3418 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3419 esac
3421 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3422 case " $build_configdirs " in
3423 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3424 esac
3426 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3427 case " $build_configdirs " in
3428 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3429 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3430 esac
3432 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3433 case " $build_configdirs " in
3434 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3435 esac
3437 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3438 case " $build_configdirs " in
3439 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3440 *)
3441 changequote(,)
3442 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3443 # higher, else we use the "missing" dummy.
3444 if ${MAKEINFO} --version \
3445 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3446 :
3447 else
3448 MAKEINFO="$MISSING makeinfo"
3449 fi
3450 ;;
3451 changequote([,])
3452 esac
3454 # FIXME: expect and dejagnu may become build tools?
3456 AC_CHECK_PROGS(EXPECT, expect, expect)
3457 case " $configdirs " in
3458 *" expect "*)
3459 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3460 ;;
3461 esac
3463 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3464 case " $configdirs " in
3465 *" dejagnu "*)
3466 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3467 ;;
3468 esac
3471 # Host tools.
3472 NCN_STRICT_CHECK_TOOLS(AR, ar)
3473 NCN_STRICT_CHECK_TOOLS(AS, as)
3474 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3475 NCN_STRICT_CHECK_TOOLS(LD, ld)
3476 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3477 NCN_STRICT_CHECK_TOOLS(NM, nm)
3478 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3479 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3480 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3481 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3482 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3483 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3484 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3485 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3486 AC_SUBST(CC)
3487 AC_SUBST(CXX)
3488 AC_SUBST(CFLAGS)
3489 AC_SUBST(CXXFLAGS)
3491 # Target tools.
3492 AC_ARG_WITH([build-time-tools],
3493 [AS_HELP_STRING([--with-build-time-tools=PATH],
3494 [use given path to find target tools during the build])],
3495 [case x"$withval" in
3496 x/*) ;;
3497 *)
3498 with_build_time_tools=
3499 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3500 ;;
3501 esac],
3502 [with_build_time_tools=])
3504 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3505 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3506 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3507 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3508 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3509 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3511 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3512 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3513 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3514 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3515 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3516 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3517 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3518 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3519 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3520 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3521 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3522 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3523 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3524 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3526 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3528 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3529 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3530 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3531 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3532 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3533 [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],
3534 c++)
3535 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3536 [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],
3537 c++)
3538 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3539 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3540 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3541 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3542 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3543 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3544 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3545 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3546 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3547 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3548 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3549 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3550 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3551 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3552 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3553 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3554 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3555 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3556 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3558 AC_SUBST(FLAGS_FOR_TARGET)
3559 AC_SUBST(RAW_CXX_FOR_TARGET)
3561 # Certain tools may need extra flags.
3562 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3563 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3564 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3566 # When building target libraries, except in a Canadian cross, we use
3567 # the same toolchain as the compiler we just built.
3568 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3569 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3570 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3571 if test $host = $build; then
3572 case " $configdirs " in
3573 *" gcc "*)
3574 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3575 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3576 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3577 ;;
3578 esac
3579 fi
3581 AC_SUBST(COMPILER_AS_FOR_TARGET)
3582 AC_SUBST(COMPILER_LD_FOR_TARGET)
3583 AC_SUBST(COMPILER_NM_FOR_TARGET)
3585 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3586 AC_ARG_ENABLE(maintainer-mode,
3587 [AS_HELP_STRING([--enable-maintainer-mode],
3588 [enable make rules and dependencies not useful
3589 (and sometimes confusing) to the casual installer])],
3590 USE_MAINTAINER_MODE=$enableval,
3591 USE_MAINTAINER_MODE=no)
3592 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3593 AC_SUBST(MAINTAINER_MODE_TRUE)
3594 AC_SUBST(MAINTAINER_MODE_FALSE)
3595 if test "$USE_MAINTAINER_MODE" = yes; then
3596 MAINTAINER_MODE_TRUE=
3597 MAINTAINER_MODE_FALSE='#'
3598 else
3599 MAINTAINER_MODE_TRUE='#'
3600 MAINTAINER_MODE_FALSE=
3601 fi
3602 MAINT=$MAINTAINER_MODE_TRUE
3603 AC_SUBST(MAINT)dnl
3605 # ---------------------
3606 # GCC bootstrap support
3607 # ---------------------
3609 # Stage specific cflags for build.
3610 stage1_cflags="-g"
3611 case $build in
3612 vax-*-*)
3613 case ${GCC} in
3614 yes) stage1_cflags="-g -Wa,-J" ;;
3615 *) stage1_cflags="-g -J" ;;
3616 esac ;;
3617 esac
3619 AC_SUBST(stage1_cflags)
3621 # Enable --enable-checking in stage1 of the compiler.
3622 AC_ARG_ENABLE(stage1-checking,
3623 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3624 [choose additional checking for stage1 of the compiler])],
3625 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3626 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3627 # For --disable-checking or implicit --enable-checking=release, avoid
3628 # setting --enable-checking=gc in the default stage1 checking for LTO
3629 # bootstraps. See PR62077.
3630 case $BUILD_CONFIG in
3631 *lto*)
3632 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3633 *)
3634 stage1_checking=--enable-checking=yes,types;;
3635 esac
3636 if test "x$enable_checking" = x && \
3637 test -d ${srcdir}/gcc && \
3638 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3639 stage1_checking=--enable-checking=yes,types,extra
3640 fi
3641 else
3642 stage1_checking=--enable-checking=$enable_checking,types
3643 fi])
3644 AC_SUBST(stage1_checking)
3646 # Enable -Werror in bootstrap stage2 and later.
3647 AC_ARG_ENABLE(werror,
3648 [AS_HELP_STRING([--enable-werror],
3649 [enable -Werror in bootstrap stage2 and later])],
3650 [
3651 case ${enable_werror} in
3652 yes) stage2_werror_flag="--enable-werror-always" ;;
3653 *) stage2_werror_flag="" ;;
3654 esac
3655 ],
3656 [
3657 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3658 case $BUILD_CONFIG in
3659 bootstrap-debug)
3660 stage2_werror_flag="--enable-werror-always" ;;
3661 "")
3662 stage2_werror_flag="--enable-werror-always" ;;
3663 esac
3664 fi
3665 ])
3667 AC_SUBST(stage2_werror_flag)
3669 # Specify what files to not compare during bootstrap.
3671 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3672 case "$target" in
3673 hppa*64*-*-hpux*) ;;
3674 hppa*-*-hpux*) compare_exclusions="$compare_exclusions | */libgcc/lib2funcs* | gcc/function-tests.o" ;;
3675 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
3676 esac
3677 AC_SUBST(compare_exclusions)
3679 AC_CONFIG_FILES([Makefile],
3680 [sed "$extrasub_build" Makefile |
3681 sed "$extrasub_host" |
3682 sed "$extrasub_target" > mf$$
3683 mv -f mf$$ Makefile],
3684 [extrasub_build="$extrasub_build"
3685 extrasub_host="$extrasub_host"
3686 extrasub_target="$extrasub_target"])
3687 AC_OUTPUT