| blob | 7cd6f2c6578e8c10b6dadd1fba7e8dfb60730376 |
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, 2020 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/gcc-plugin.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="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"
168 # these tools are built using the target libraries, and are intended to
169 # run only in the target environment
170 #
171 # note: any program that *uses* libraries that are in the "target_libraries"
172 # list belongs in this list.
173 #
174 target_tools="target-rda"
176 ################################################################################
178 ## All tools belong in one of the four categories, and are assigned above
179 ## We assign ${configdirs} this way to remove all embedded newlines. This
180 ## is important because configure will choke if they ever get through.
181 ## ${configdirs} is directories we build using the host tools.
182 ## ${target_configdirs} is directories we build using the target tools.
183 configdirs=`echo ${host_libs} ${host_tools}`
184 target_configdirs=`echo ${target_libraries} ${target_tools}`
185 build_configdirs=`echo ${build_libs} ${build_tools}`
187 m4_divert_text([PARSE_ARGS],
188 [case $srcdir in
189 *" "*)
190 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
191 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
192 m4_popdef([AS_MESSAGE_LOG_FD])dnl
193 ;;
194 esac
195 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
196 ])
198 ################################################################################
200 srcname="gnu development package"
202 # This gets set non-empty for some net releases of packages.
203 appdirs=""
205 # Define is_cross_compiler to save on calls to 'test'.
206 is_cross_compiler=
207 if test x"${host}" = x"${target}" ; then
208 is_cross_compiler=no
209 else
210 is_cross_compiler=yes
211 fi
213 # Find the build and target subdir names.
214 GCC_TOPLEV_SUBDIRS
215 # Be sure to cover against remnants of an in-tree build.
216 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
217 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
218 Use a pristine source tree when building in a separate tree])
219 fi
221 # Skipdirs are removed silently.
222 skipdirs=
223 # Noconfigdirs are removed loudly.
224 noconfigdirs=""
226 use_gnu_ld=
227 # Make sure we don't let GNU ld be added if we didn't want it.
228 if test x$with_gnu_ld = xno ; then
229 use_gnu_ld=no
230 noconfigdirs="$noconfigdirs ld gold"
231 fi
233 use_gnu_as=
234 # Make sure we don't let GNU as be added if we didn't want it.
235 if test x$with_gnu_as = xno ; then
236 use_gnu_as=no
237 noconfigdirs="$noconfigdirs gas"
238 fi
240 use_included_zlib=
241 AC_ARG_WITH(system-zlib,
242 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
243 # Make sure we don't let ZLIB be added if we didn't want it.
244 if test x$with_system_zlib = xyes ; then
245 use_included_zlib=no
246 noconfigdirs="$noconfigdirs zlib"
247 fi
249 # Don't compile the bundled readline/libreadline.a if --with-system-readline
250 # is provided.
251 if test x$with_system_readline = xyes ; then
252 noconfigdirs="$noconfigdirs readline"
253 fi
255 # some tools are so dependent upon X11 that if we're not building with X,
256 # it's not even worth trying to configure, much less build, that tool.
258 case ${with_x} in
259 yes | "") ;; # the default value for this tree is that X11 is available
260 no)
261 skipdirs="${skipdirs} tk itcl libgui"
262 # We won't be able to build gdbtk without X.
263 enable_gdbtk=no
264 ;;
265 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
266 esac
268 # Some are only suitable for cross toolchains.
269 # Remove these if host=target.
270 cross_only="target-libgloss target-newlib target-opcodes"
272 case $is_cross_compiler in
273 no) skipdirs="${skipdirs} ${cross_only}" ;;
274 esac
276 # If both --with-headers and --with-libs are specified, default to
277 # --without-newlib.
278 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
279 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
280 if test x"${with_newlib}" = x ; then
281 with_newlib=no
282 fi
283 fi
285 # Recognize --with-newlib/--without-newlib.
286 case ${with_newlib} in
287 no) skipdirs="${skipdirs} target-newlib" ;;
288 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
289 esac
291 AC_ARG_ENABLE(as-accelerator-for,
292 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
293 [build as offload target compiler.
294 Specify offload host triple by ARG])])
296 AC_ARG_ENABLE(offload-targets,
297 [AS_HELP_STRING([--enable-offload-targets=LIST],
298 [enable offloading to devices from comma-separated LIST of
299 TARGET[=DIR]. Use optional path to find offload target compiler
300 during the build])],
301 [
302 if test x"$enable_offload_targets" = x; then
303 AC_MSG_ERROR([no offload targets specified])
304 fi
305 ], [enable_offload_targets=])
307 # Handle --enable-gold, --enable-ld.
308 # --disable-gold [--enable-ld]
309 # Build only ld. Default option.
310 # --enable-gold [--enable-ld]
311 # Build both gold and ld. Install gold as "ld.gold", install ld
312 # as "ld.bfd" and "ld".
313 # --enable-gold=default [--enable-ld]
314 # Build both gold and ld. Install gold as "ld.gold" and "ld",
315 # install ld as "ld.bfd".
316 # --enable-gold[=default] --disable-ld
317 # Build only gold, which is then installed as both "ld.gold" and "ld".
318 # --enable-gold --enable-ld=default
319 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
320 # and ld.bfd).
321 # In other words, ld is default
322 # --enable-gold=default --enable-ld=default
323 # Error.
325 default_ld=
326 AC_ARG_ENABLE(gold,
327 [AS_HELP_STRING([[--enable-gold[=ARG]]],
328 [build gold @<:@ARG={default,yes,no}@:>@])],
329 ENABLE_GOLD=$enableval,
330 ENABLE_GOLD=no)
331 case "${ENABLE_GOLD}" in
332 yes|default)
333 # Check for ELF target.
334 is_elf=no
335 case "${target}" in
336 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
337 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
338 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
339 | *-*-solaris2* | *-*-nto* | *-*-nacl* | *-*-haiku*)
340 case "${target}" in
341 *-*-linux*aout* | *-*-linux*oldld*)
342 ;;
343 *)
344 is_elf=yes
345 ;;
346 esac
347 esac
349 if test "$is_elf" = "yes"; then
350 # Check for target supported by gold.
351 case "${target}" in
352 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
353 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
354 configdirs="$configdirs gold"
355 if test x${ENABLE_GOLD} = xdefault; then
356 default_ld=gold
357 fi
358 ENABLE_GOLD=yes
359 ;;
360 esac
361 fi
362 ;;
363 no)
364 ;;
365 *)
366 AC_MSG_ERROR([invalid --enable-gold argument])
367 ;;
368 esac
370 AC_ARG_ENABLE(ld,
371 [AS_HELP_STRING([[--enable-ld[=ARG]]],
372 [build ld @<:@ARG={default,yes,no}@:>@])],
373 ENABLE_LD=$enableval,
374 ENABLE_LD=yes)
376 case "${ENABLE_LD}" in
377 default)
378 if test x${default_ld} != x; then
379 AC_MSG_ERROR([either gold or ld can be the default ld])
380 fi
381 ;;
382 yes)
383 ;;
384 no)
385 if test x${ENABLE_GOLD} != xyes; then
386 AC_MSG_WARN([neither ld nor gold are enabled])
387 fi
388 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
389 ;;
390 *)
391 AC_MSG_ERROR([invalid --enable-ld argument])
392 ;;
393 esac
395 # PR gas/19109
396 # Decide the default method for compressing debug sections.
397 # Provide a configure time option to override our default.
398 AC_ARG_ENABLE(compressed_debug_sections,
399 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
400 [Enable compressed debug sections for gas, gold or ld by
401 default])],
402 [
403 if test x"$enable_compressed_debug_sections" = xyes; then
404 AC_MSG_ERROR([no program with compressed debug sections specified])
405 fi
406 ], [enable_compressed_debug_sections=])
408 # Configure extra directories which are host specific
410 case "${host}" in
411 *-cygwin*)
412 configdirs="$configdirs libtermcap" ;;
413 esac
415 # A target can indicate whether a language isn't supported for some reason.
416 # Only spaces may be used in this macro; not newlines or tabs.
417 unsupported_languages=
419 # Remove more programs from consideration, based on the host or
420 # target this usually means that a port of the program doesn't
421 # exist yet.
423 case "${host}" in
424 i[[3456789]]86-*-msdosdjgpp*)
425 noconfigdirs="$noconfigdirs tcl tk itcl"
426 ;;
427 esac
430 AC_ARG_ENABLE(libquadmath,
431 AS_HELP_STRING([--disable-libquadmath],
432 [do not build libquadmath directory]),
433 ENABLE_LIBQUADMATH=$enableval,
434 ENABLE_LIBQUADMATH=yes)
435 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
436 noconfigdirs="$noconfigdirs target-libquadmath"
437 fi
440 AC_ARG_ENABLE(libquadmath-support,
441 AS_HELP_STRING([--disable-libquadmath-support],
442 [disable libquadmath support for Fortran]),
443 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
444 ENABLE_LIBQUADMATH_SUPPORT=yes)
445 enable_libquadmath_support=
446 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
447 enable_libquadmath_support=no
448 fi
451 AC_ARG_ENABLE(libada,
452 [AS_HELP_STRING([--enable-libada], [build libada directory])],
453 ENABLE_LIBADA=$enableval,
454 ENABLE_LIBADA=yes)
455 if test "${ENABLE_LIBADA}" != "yes" ; then
456 noconfigdirs="$noconfigdirs gnattools"
457 fi
459 AC_ARG_ENABLE(libssp,
460 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
461 ENABLE_LIBSSP=$enableval,
462 ENABLE_LIBSSP=yes)
464 AC_ARG_ENABLE(libstdcxx,
465 AS_HELP_STRING([--disable-libstdcxx],
466 [do not build libstdc++-v3 directory]),
467 ENABLE_LIBSTDCXX=$enableval,
468 ENABLE_LIBSTDCXX=default)
469 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
470 noconfigdirs="$noconfigdirs target-libstdc++-v3"
471 fi]
473 # If this is accelerator compiler and its target is intelmic we enable
474 # target liboffloadmic by default. If this is compiler with offloading
475 # for intelmic we enable host liboffloadmic by default. Otherwise
476 # liboffloadmic is disabled by default.
477 AC_ARG_ENABLE([liboffloadmic],
478 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
479 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
480 [case "$enableval" in
481 no | host | target)
482 enable_liboffloadmic=$enableval ;;
483 *)
484 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
485 esac],
486 [if test x"$enable_as_accelerator_for" != x; then
487 case "${target}" in
488 *-intelmic-* | *-intelmicemul-*)
489 enable_liboffloadmic=target
490 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
491 ;;
492 *)
493 enable_liboffloadmic=no
494 ;;
495 esac
496 else
497 case "${enable_offload_targets}" in
498 *-intelmic-* | *-intelmicemul-*)
499 enable_liboffloadmic=host
500 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
501 ;;
502 *)
503 enable_liboffloadmic=no
504 ;;
505 esac
506 fi])
507 AC_SUBST(extra_liboffloadmic_configure_flags)
509 # Enable libgomp by default on hosted POSIX systems, and a few others.
510 if test x$enable_libgomp = x ; then
511 case "${target}" in
512 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
513 ;;
514 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
515 ;;
516 *-*-solaris2* | *-*-hpux11*)
517 ;;
518 *-*-darwin* | *-*-aix*)
519 ;;
520 nvptx*-*-*)
521 ;;
522 *)
523 noconfigdirs="$noconfigdirs target-libgomp"
524 ;;
525 esac
526 fi
528 # Disable libatomic on unsupported systems.
529 if test -d ${srcdir}/libatomic; then
530 if test x$enable_libatomic = x; then
531 AC_MSG_CHECKING([for libatomic support])
532 if (srcdir=${srcdir}/libatomic; \
533 . ${srcdir}/configure.tgt; \
534 test -n "$UNSUPPORTED")
535 then
536 AC_MSG_RESULT([no])
537 noconfigdirs="$noconfigdirs target-libatomic"
538 else
539 AC_MSG_RESULT([yes])
540 fi
541 fi
542 fi
544 # Disable liboffloadmic on unsupported systems.
545 if test -d ${srcdir}/liboffloadmic; then
546 if test x$enable_liboffloadmic != xno; then
547 AC_MSG_CHECKING([for liboffloadmic support])
548 if (srcdir=${srcdir}/liboffloadmic; \
549 . ${srcdir}/configure.tgt; \
550 test -n "$UNSUPPORTED")
551 then
552 AC_MSG_RESULT([no])
553 noconfigdirs="$noconfigdirs target-liboffloadmic"
554 else
555 AC_MSG_RESULT([yes])
556 fi
557 fi
558 fi
560 # Disable libitm on unsupported systems.
561 if test -d ${srcdir}/libitm; then
562 if test x$enable_libitm = x; then
563 AC_MSG_CHECKING([for libitm support])
564 if (srcdir=${srcdir}/libitm; \
565 . ${srcdir}/configure.tgt; \
566 test -n "$UNSUPPORTED")
567 then
568 AC_MSG_RESULT([no])
569 noconfigdirs="$noconfigdirs target-libitm"
570 else
571 AC_MSG_RESULT([yes])
572 fi
573 fi
574 fi
576 # Disable libsanitizer on unsupported systems.
577 if test -d ${srcdir}/libsanitizer; then
578 if test x$enable_libsanitizer = x; then
579 AC_MSG_CHECKING([for libsanitizer support])
580 if (srcdir=${srcdir}/libsanitizer; \
581 . ${srcdir}/configure.tgt; \
582 test -n "$UNSUPPORTED")
583 then
584 AC_MSG_RESULT([no])
585 noconfigdirs="$noconfigdirs target-libsanitizer"
586 else
587 AC_MSG_RESULT([yes])
588 fi
589 fi
590 fi
592 # Disable libvtv on unsupported systems.
593 if test -d ${srcdir}/libvtv; then
594 if test x$enable_libvtv = x; then
595 AC_MSG_CHECKING([for libvtv support])
596 if (srcdir=${srcdir}/libvtv; \
597 . ${srcdir}/configure.tgt; \
598 test "$VTV_SUPPORTED" != "yes")
599 then
600 AC_MSG_RESULT([no])
601 noconfigdirs="$noconfigdirs target-libvtv"
602 else
603 AC_MSG_RESULT([yes])
604 fi
605 fi
606 fi
609 # Disable libhsail-rt on unsupported systems.
610 if test -d ${srcdir}/libhsail-rt; then
611 if test x$enable_libhsail_rt = x; then
612 AC_MSG_CHECKING([for libhsail-rt support])
613 if (srcdir=${srcdir}/libhsail-rt; \
614 . ${srcdir}/configure.tgt; \
615 test -n "$UNSUPPORTED")
616 then
617 AC_MSG_RESULT([no])
618 unsupported_languages="$unsupported_languages brig"
619 # This implicitly disables also target-libhsail-rt as it won't
620 # get added to the build without BRIG FE.
621 else
622 AC_MSG_RESULT([yes])
623 fi
624 fi
625 fi
628 # Disable libquadmath for some systems.
629 case "${target}" in
630 avr-*-*)
631 noconfigdirs="$noconfigdirs target-libquadmath"
632 ;;
633 # libquadmath is unused on AIX and libquadmath build process use of
634 # LD_LIBRARY_PATH can break AIX bootstrap.
635 powerpc-*-aix* | rs6000-*-aix*)
636 noconfigdirs="$noconfigdirs target-libquadmath"
637 ;;
638 esac
640 # Disable libssp for some systems.
641 case "${target}" in
642 avr-*-*)
643 # No hosted I/O support.
644 noconfigdirs="$noconfigdirs target-libssp"
645 ;;
646 powerpc-*-aix* | rs6000-*-aix*)
647 noconfigdirs="$noconfigdirs target-libssp"
648 ;;
649 rl78-*-*)
650 # libssp uses a misaligned load to trigger a fault, but the RL78
651 # doesn't fault for those - instead, it gives a build-time error
652 # for explicit misaligned loads.
653 noconfigdirs="$noconfigdirs target-libssp"
654 ;;
655 visium-*-*)
656 # No hosted I/O support.
657 noconfigdirs="$noconfigdirs target-libssp"
658 ;;
659 esac
661 # Disable libstdc++-v3 for some systems.
662 # Allow user to override this if they pass --enable-libstdc++-v3
663 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
664 case "${target}" in
665 *-*-vxworks*)
666 # VxWorks uses the Dinkumware C++ library.
667 noconfigdirs="$noconfigdirs target-libstdc++-v3"
668 ;;
669 arm*-wince-pe*)
670 # the C++ libraries don't build on top of CE's C libraries
671 noconfigdirs="$noconfigdirs target-libstdc++-v3"
672 ;;
673 avr-*-*)
674 noconfigdirs="$noconfigdirs target-libstdc++-v3"
675 ;;
676 ft32-*-*)
677 noconfigdirs="$noconfigdirs target-libstdc++-v3"
678 ;;
679 esac
680 fi
682 # Disable Fortran for some systems.
683 case "${target}" in
684 mmix-*-*)
685 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
686 unsupported_languages="$unsupported_languages fortran"
687 ;;
688 esac
690 # Disable libffi for some systems.
691 case "${target}" in
692 powerpc-*-darwin*)
693 ;;
694 i[[3456789]]86-*-darwin*)
695 ;;
696 x86_64-*-darwin[[912]]*)
697 ;;
698 *-*-darwin*)
699 noconfigdirs="$noconfigdirs target-libffi"
700 ;;
701 *-*-netware*)
702 noconfigdirs="$noconfigdirs target-libffi"
703 ;;
704 *-*-phoenix*)
705 noconfigdirs="$noconfigdirs target-libffi"
706 ;;
707 *-*-rtems*)
708 noconfigdirs="$noconfigdirs target-libffi"
709 ;;
710 *-*-tpf*)
711 noconfigdirs="$noconfigdirs target-libffi"
712 ;;
713 *-*-uclinux*)
714 noconfigdirs="$noconfigdirs target-libffi"
715 ;;
716 *-*-vxworks*)
717 noconfigdirs="$noconfigdirs target-libffi"
718 ;;
719 aarch64*-*-freebsd*)
720 noconfigdirs="$noconfigdirs target-libffi"
721 ;;
722 alpha*-*-*vms*)
723 noconfigdirs="$noconfigdirs target-libffi"
724 ;;
725 arm*-*-freebsd*)
726 noconfigdirs="$noconfigdirs target-libffi"
727 ;;
728 arm-wince-pe)
729 noconfigdirs="$noconfigdirs target-libffi"
730 ;;
731 cris-*-* | crisv32-*-*)
732 case "${target}" in
733 *-*-linux*)
734 ;;
735 *) # See PR46792 regarding target-libffi.
736 noconfigdirs="$noconfigdirs target-libffi";;
737 esac
738 ;;
739 hppa*64*-*-hpux*)
740 noconfigdirs="$noconfigdirs target-libffi"
741 ;;
742 hppa*-hp-hpux11*)
743 ;;
744 hppa*-*-hpux*)
745 noconfigdirs="$noconfigdirs target-libffi"
746 ;;
747 ia64*-*-*vms*)
748 noconfigdirs="$noconfigdirs target-libffi"
749 ;;
750 i[[3456789]]86-w64-mingw*)
751 noconfigdirs="$noconfigdirs target-libffi"
752 ;;
753 i[[3456789]]86-*-mingw*)
754 noconfigdirs="$noconfigdirs target-libffi"
755 ;;
756 x86_64-*-mingw*)
757 noconfigdirs="$noconfigdirs target-libffi"
758 ;;
759 mmix-*-*)
760 noconfigdirs="$noconfigdirs target-libffi"
761 ;;
762 powerpc-*-aix*)
763 ;;
764 rs6000-*-aix*)
765 ;;
766 ft32-*-*)
767 noconfigdirs="$noconfigdirs target-libffi"
768 ;;
769 *-*-lynxos*)
770 noconfigdirs="$noconfigdirs target-libffi"
771 ;;
772 esac
774 # Disable the go frontend on systems where it is known to not work. Please keep
775 # this in sync with contrib/config-list.mk.
776 case "${target}" in
777 *-*-darwin* | *-*-cygwin* | *-*-mingw*)
778 unsupported_languages="$unsupported_languages go"
779 ;;
780 esac
782 # Only allow gdbserver on some systems.
783 if test -d ${srcdir}/gdbserver; then
784 if test x$enable_gdbserver = x; then
785 AC_MSG_CHECKING([for gdbserver support])
786 if (srcdir=${srcdir}/gdbserver; \
787 . ${srcdir}/configure.srv; \
788 test -n "$UNSUPPORTED")
789 then
790 AC_MSG_RESULT([no])
791 noconfigdirs="$noconfigdirs gdbserver"
792 else
793 AC_MSG_RESULT([yes])
794 fi
795 fi
796 fi
798 # Disable libgo for some systems where it is known to not work.
799 # For testing, you can easily override this with --enable-libgo.
800 if test x$enable_libgo = x; then
801 case "${target}" in
802 *-*-darwin*)
803 # PR 46986
804 noconfigdirs="$noconfigdirs target-libgo"
805 ;;
806 *-*-cygwin* | *-*-mingw*)
807 noconfigdirs="$noconfigdirs target-libgo"
808 ;;
809 esac
810 fi
812 # Default libgloss CPU subdirectory.
813 libgloss_dir="$target_cpu"
815 case "${target}" in
816 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
817 libgloss_dir=wince
818 ;;
819 aarch64*-*-* )
820 libgloss_dir=aarch64
821 ;;
822 arm*-*-*)
823 libgloss_dir=arm
824 ;;
825 cris-*-* | crisv32-*-*)
826 libgloss_dir=cris
827 ;;
828 hppa*-*-*)
829 libgloss_dir=pa
830 ;;
831 i[[3456789]]86-*-*)
832 libgloss_dir=i386
833 ;;
834 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
835 libgloss_dir=m68hc11
836 ;;
837 m68*-*-* | fido-*-*)
838 libgloss_dir=m68k
839 ;;
840 mips*-*-*)
841 libgloss_dir=mips
842 ;;
843 powerpc*-*-*)
844 libgloss_dir=rs6000
845 ;;
846 sparc*-*-*)
847 libgloss_dir=sparc
848 ;;
849 esac
851 # Disable newlib and libgloss for various target OSes.
852 case "${target}" in
853 alpha*-dec-osf*)
854 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
855 ;;
856 i[[3456789]]86-*-linux*)
857 # This section makes it possible to build newlib natively on linux.
858 # If we are using a cross compiler then don't configure newlib.
859 if test x${is_cross_compiler} != xno ; then
860 noconfigdirs="$noconfigdirs target-newlib"
861 fi
862 noconfigdirs="$noconfigdirs target-libgloss"
863 # If we are not using a cross compiler, do configure newlib.
864 # Note however, that newlib will only be configured in this situation
865 # if the --with-newlib option has been given, because otherwise
866 # 'target-newlib' will appear in skipdirs.
867 ;;
868 i[[3456789]]86-*-rdos*)
869 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
870 ;;
871 sh*-*-pe|mips*-*-pe|arm-wince-pe)
872 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
873 ;;
874 sparc-*-sunos4*)
875 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
876 ;;
877 *-*-aix*)
878 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
879 ;;
880 *-*-beos*)
881 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
882 ;;
883 *-*-chorusos)
884 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
885 ;;
886 *-*-dragonfly*)
887 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
888 ;;
889 *-*-freebsd*)
890 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
891 ;;
892 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
893 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
894 ;;
895 *-*-lynxos*)
896 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
897 ;;
898 *-*-mingw*)
899 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
900 ;;
901 *-*-netbsd*)
902 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
903 ;;
904 *-*-netware*)
905 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
906 ;;
907 *-*-tpf*)
908 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
909 ;;
910 *-*-uclinux*)
911 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
912 ;;
913 *-*-vxworks*)
914 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
915 ;;
916 esac
918 case "${target}" in
919 *-*-chorusos)
920 ;;
921 aarch64-*-darwin*)
922 noconfigdirs="$noconfigdirs ld gas gdb gprof"
923 noconfigdirs="$noconfigdirs sim target-rda"
924 ;;
925 arm-*-darwin*)
926 noconfigdirs="$noconfigdirs ld gas gdb gprof"
927 noconfigdirs="$noconfigdirs sim target-rda"
928 ;;
929 powerpc-*-darwin*)
930 noconfigdirs="$noconfigdirs ld gas gdb gprof"
931 noconfigdirs="$noconfigdirs sim target-rda"
932 ;;
933 i[[3456789]]86-*-darwin*)
934 noconfigdirs="$noconfigdirs ld gprof"
935 noconfigdirs="$noconfigdirs sim target-rda"
936 ;;
937 x86_64-*-darwin[[912]]*)
938 noconfigdirs="$noconfigdirs ld gas gprof"
939 noconfigdirs="$noconfigdirs sim target-rda"
940 ;;
941 *-*-darwin*)
942 noconfigdirs="$noconfigdirs ld gas gdb gprof"
943 noconfigdirs="$noconfigdirs sim target-rda"
944 ;;
945 *-*-dragonfly*)
946 ;;
947 *-*-freebsd*)
948 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
949 && test -f /usr/local/include/gmp.h; then
950 with_gmp=/usr/local
951 fi
952 ;;
953 *-*-kaos*)
954 # Remove unsupported stuff on all kaOS configurations.
955 noconfigdirs="$noconfigdirs target-libgloss"
956 ;;
957 *-*-netbsd*)
958 ;;
959 *-*-netware*)
960 ;;
961 *-*-phoenix*)
962 noconfigdirs="$noconfigdirs target-libgloss"
963 ;;
964 *-*-rtems*)
965 noconfigdirs="$noconfigdirs target-libgloss"
966 ;;
967 # The tpf target doesn't support gdb yet.
968 *-*-tpf*)
969 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
970 ;;
971 *-*-uclinux*)
972 noconfigdirs="$noconfigdirs target-rda"
973 ;;
974 *-*-vxworks*)
975 ;;
976 alpha*-dec-osf*)
977 # ld works, but does not support shared libraries.
978 # gas doesn't generate exception information.
979 noconfigdirs="$noconfigdirs gas ld"
980 ;;
981 alpha*-*-*vms*)
982 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
983 ;;
984 alpha*-*-*)
985 # newlib is not 64 bit ready
986 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
987 ;;
988 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
989 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
990 ;;
991 arc*-*-*)
992 noconfigdirs="$noconfigdirs sim"
993 ;;
994 arm-*-pe*)
995 noconfigdirs="$noconfigdirs target-libgloss"
996 ;;
997 arm-*-riscix*)
998 noconfigdirs="$noconfigdirs ld target-libgloss"
999 ;;
1000 avr-*-*)
1001 if test x${with_avrlibc} != xno; then
1002 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1003 fi
1004 ;;
1005 c4x-*-* | tic4x-*-*)
1006 noconfigdirs="$noconfigdirs target-libgloss"
1007 ;;
1008 tic54x-*-*)
1009 noconfigdirs="$noconfigdirs target-libgloss gdb"
1010 ;;
1011 d10v-*-*)
1012 noconfigdirs="$noconfigdirs target-libgloss"
1013 ;;
1014 d30v-*-*)
1015 noconfigdirs="$noconfigdirs gdb"
1016 ;;
1017 fr30-*-elf*)
1018 noconfigdirs="$noconfigdirs gdb"
1019 ;;
1020 ft32-*-*)
1021 noconfigdirs="$noconfigdirs target-rda gprof"
1022 ;;
1023 moxie-*-*)
1024 noconfigdirs="$noconfigdirs"
1025 ;;
1026 h8300*-*-*)
1027 noconfigdirs="$noconfigdirs target-libgloss"
1028 ;;
1029 h8500-*-*)
1030 noconfigdirs="$noconfigdirs target-libgloss"
1031 ;;
1032 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1033 ;;
1034 hppa*64*-*-hpux*)
1035 noconfigdirs="$noconfigdirs gdb"
1036 ;;
1037 hppa*-*-hpux11*)
1038 noconfigdirs="$noconfigdirs gdb ld"
1039 ;;
1040 hppa*64*-*-linux*)
1041 ;;
1042 hppa*-*-linux*)
1043 ;;
1044 hppa*-*-*elf* | \
1045 hppa*-*-lites* | \
1046 hppa*-*-openbsd* | \
1047 hppa*64*-*-*)
1048 ;;
1049 hppa*-*-pro*)
1050 ;;
1051 hppa*-*-*)
1052 noconfigdirs="$noconfigdirs ld"
1053 ;;
1054 i960-*-*)
1055 noconfigdirs="$noconfigdirs gdb"
1056 ;;
1057 ia64*-*-elf*)
1058 # No gdb support yet.
1059 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1060 ;;
1061 ia64*-**-hpux*)
1062 # No ld support yet.
1063 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1064 ;;
1065 ia64*-*-*vms*)
1066 # No ld support yet.
1067 noconfigdirs="$noconfigdirs libgui itcl ld"
1068 ;;
1069 i[[3456789]]86-w64-mingw*)
1070 ;;
1071 i[[3456789]]86-*-mingw*)
1072 target_configdirs="$target_configdirs target-winsup"
1073 ;;
1074 *-*-cygwin*)
1075 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1076 noconfigdirs="$noconfigdirs target-libgloss"
1077 # always build newlib if winsup directory is present.
1078 if test -d "$srcdir/winsup/cygwin"; then
1079 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1080 elif test -d "$srcdir/newlib"; then
1081 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1082 fi
1083 ;;
1084 i[[3456789]]86-*-pe)
1085 noconfigdirs="$noconfigdirs target-libgloss"
1086 ;;
1087 i[[3456789]]86-*-sco3.2v5*)
1088 # The linker does not yet know about weak symbols in COFF,
1089 # and is not configured to handle mixed ELF and COFF.
1090 noconfigdirs="$noconfigdirs ld target-libgloss"
1091 ;;
1092 i[[3456789]]86-*-sco*)
1093 noconfigdirs="$noconfigdirs gprof target-libgloss"
1094 ;;
1095 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1096 noconfigdirs="$noconfigdirs target-libgloss"
1097 ;;
1098 i[[3456789]]86-*-sysv4*)
1099 noconfigdirs="$noconfigdirs target-libgloss"
1100 ;;
1101 i[[3456789]]86-*-beos*)
1102 noconfigdirs="$noconfigdirs gdb"
1103 ;;
1104 i[[3456789]]86-*-rdos*)
1105 noconfigdirs="$noconfigdirs gdb"
1106 ;;
1107 mmix-*-*)
1108 noconfigdirs="$noconfigdirs gdb"
1109 ;;
1110 mt-*-*)
1111 noconfigdirs="$noconfigdirs sim"
1112 ;;
1113 nfp-*-*)
1114 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1115 noconfigdirs="$noconfigdirs $target_libraries"
1116 ;;
1117 pdp11-*-*)
1118 noconfigdirs="$noconfigdirs gdb gprof"
1119 ;;
1120 powerpc-*-aix*)
1121 # copied from rs6000-*-* entry
1122 noconfigdirs="$noconfigdirs gprof"
1123 ;;
1124 powerpc*-*-winnt* | powerpc*-*-pe*)
1125 target_configdirs="$target_configdirs target-winsup"
1126 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1127 # always build newlib.
1128 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1129 ;;
1130 # This is temporary until we can link against shared libraries
1131 powerpcle-*-solaris*)
1132 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1133 ;;
1134 powerpc-*-beos*)
1135 noconfigdirs="$noconfigdirs gdb"
1136 ;;
1137 rs6000-*-lynxos*)
1138 noconfigdirs="$noconfigdirs gprof"
1139 ;;
1140 rs6000-*-aix*)
1141 noconfigdirs="$noconfigdirs gprof"
1142 ;;
1143 rs6000-*-*)
1144 noconfigdirs="$noconfigdirs gprof"
1145 ;;
1146 m68k-apollo-*)
1147 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1148 ;;
1149 microblaze*)
1150 noconfigdirs="$noconfigdirs gprof"
1151 ;;
1152 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1153 if test x$with_newlib = xyes; then
1154 noconfigdirs="$noconfigdirs gprof"
1155 fi
1156 ;;
1157 mips*-*-irix5*)
1158 noconfigdirs="$noconfigdirs gprof target-libgloss"
1159 ;;
1160 mips*-*-irix6*)
1161 noconfigdirs="$noconfigdirs gprof target-libgloss"
1162 ;;
1163 mips*-*-bsd*)
1164 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1165 ;;
1166 mips*-*-linux*)
1167 ;;
1168 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1169 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1170 noconfigdirs="$noconfigdirs ld gas gprof"
1171 ;;
1172 mips*-*-*)
1173 noconfigdirs="$noconfigdirs gprof"
1174 ;;
1175 nvptx*-*-*)
1176 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1177 ;;
1178 sh-*-*)
1179 case "${target}" in
1180 sh*-*-elf)
1181 ;;
1182 *)
1183 noconfigdirs="$noconfigdirs target-libgloss" ;;
1184 esac
1185 ;;
1186 sparc-*-sunos4*)
1187 if test x${is_cross_compiler} = xno ; then
1188 use_gnu_ld=no
1189 fi
1190 ;;
1191 tic6x-*-*)
1192 noconfigdirs="$noconfigdirs sim"
1193 ;;
1194 tilepro*-*-* | tilegx*-*-*)
1195 noconfigdirs="$noconfigdirs sim"
1196 ;;
1197 v810-*-*)
1198 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1199 ;;
1200 vax-*-*)
1201 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1202 ;;
1203 wasm32-*-*)
1204 noconfigdirs="$noconfigdirs ld"
1205 ;;
1206 esac
1208 # If we aren't building newlib, then don't build libgloss, since libgloss
1209 # depends upon some newlib header files.
1210 case "${noconfigdirs}" in
1211 *target-libgloss*) ;;
1212 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1213 esac
1215 # Work in distributions that contain no compiler tools, like Autoconf.
1216 host_makefile_frag=/dev/null
1217 if test -d ${srcdir}/config ; then
1218 case "${host}" in
1219 i[[3456789]]86-*-msdosdjgpp*)
1220 host_makefile_frag="config/mh-djgpp"
1221 ;;
1222 *-cygwin*)
1223 ACX_CHECK_CYGWIN_CAT_WORKS
1224 host_makefile_frag="config/mh-cygwin"
1225 ;;
1226 *-mingw*)
1227 host_makefile_frag="config/mh-mingw"
1228 ;;
1229 alpha*-linux*)
1230 host_makefile_frag="config/mh-alpha-linux"
1231 ;;
1232 hppa*-hp-hpux10*)
1233 host_makefile_frag="config/mh-pa-hpux10"
1234 ;;
1235 hppa*-hp-hpux*)
1236 host_makefile_frag="config/mh-pa"
1237 ;;
1238 hppa*-*)
1239 host_makefile_frag="config/mh-pa"
1240 ;;
1241 *-*-darwin*)
1242 host_makefile_frag="config/mh-darwin"
1243 ;;
1244 powerpc-*-aix*)
1245 host_makefile_frag="config/mh-ppc-aix"
1246 ;;
1247 rs6000-*-aix*)
1248 host_makefile_frag="config/mh-ppc-aix"
1249 ;;
1250 esac
1251 fi
1253 if test "${build}" != "${host}" ; then
1254 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1255 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1256 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1257 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1258 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1259 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1260 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1261 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1262 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1263 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1264 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1265 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1266 else
1267 AR_FOR_BUILD="\$(AR)"
1268 AS_FOR_BUILD="\$(AS)"
1269 CC_FOR_BUILD="\$(CC)"
1270 CXX_FOR_BUILD="\$(CXX)"
1271 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1272 GOC_FOR_BUILD="\$(GOC)"
1273 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1274 LD_FOR_BUILD="\$(LD)"
1275 NM_FOR_BUILD="\$(NM)"
1276 RANLIB_FOR_BUILD="\$(RANLIB)"
1277 WINDRES_FOR_BUILD="\$(WINDRES)"
1278 WINDMC_FOR_BUILD="\$(WINDMC)"
1279 fi
1281 AC_PROG_CC_C99
1282 AC_PROG_CXX
1284 # We must set the default linker to the linker used by gcc for the correct
1285 # operation of libtool. If LD is not defined and we are using gcc, try to
1286 # set the LD default to the ld used by gcc.
1287 if test -z "$LD"; then
1288 if test "$GCC" = yes; then
1289 case $build in
1290 *-*-mingw*)
1291 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1292 *)
1293 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1294 esac
1295 case $gcc_prog_ld in
1296 # Accept absolute paths.
1297 [[\\/]* | [A-Za-z]:[\\/]*)]
1298 LD="$gcc_prog_ld" ;;
1299 esac
1300 fi
1301 fi
1303 # Check whether -static-libstdc++ -static-libgcc is supported.
1304 have_static_libs=no
1305 if test "$GCC" = yes; then
1306 saved_LDFLAGS="$LDFLAGS"
1308 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1309 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1310 AC_LANG_PUSH(C++)
1311 AC_LINK_IFELSE([AC_LANG_SOURCE([
1312 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1313 #error -static-libstdc++ not implemented
1314 #endif
1315 int main() {}])],
1316 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1317 [AC_MSG_RESULT([no])])
1318 AC_LANG_POP(C++)
1320 LDFLAGS="$saved_LDFLAGS"
1321 fi
1323 ACX_PROG_GNAT
1324 ACX_PROG_CMP_IGNORE_INITIAL
1326 AC_ARG_ENABLE([bootstrap],
1327 [AS_HELP_STRING([--enable-bootstrap],
1328 [enable bootstrapping @<:@yes if native build@:>@])],,
1329 enable_bootstrap=default)
1331 # Issue errors and warnings for invalid/strange bootstrap combinations.
1332 if test -r $srcdir/gcc/configure; then
1333 have_compiler=yes
1334 else
1335 have_compiler=no
1336 fi
1338 case "$have_compiler:$host:$target:$enable_bootstrap" in
1339 *:*:*:no) ;;
1341 # Default behavior. Enable bootstrap if we have a compiler
1342 # and we are in a native configuration.
1343 yes:$build:$build:default)
1344 enable_bootstrap=yes ;;
1346 *:*:*:default)
1347 enable_bootstrap=no ;;
1349 # We have a compiler and we are in a native configuration, bootstrap is ok
1350 yes:$build:$build:yes)
1351 ;;
1353 # Other configurations, but we have a compiler. Assume the user knows
1354 # what he's doing.
1355 yes:*:*:yes)
1356 AC_MSG_WARN([trying to bootstrap a cross compiler])
1357 ;;
1359 # No compiler: if they passed --enable-bootstrap explicitly, fail
1360 no:*:*:yes)
1361 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1363 # Fail if wrong command line
1364 *)
1365 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1366 ;;
1367 esac
1369 # When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1370 # C++98 compiler can still start the bootstrap.
1371 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1372 CXX="$CXX -std=gnu++98"
1373 fi
1375 AC_ARG_ENABLE([pgo-build],
1376 [AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1377 [enable the PGO build])],
1378 [enable_pgo_build=$enableval],
1379 [enable_pgo_build=no])
1381 # Issue errors and warnings for invalid/strange PGO build combinations.
1382 case "$have_compiler:$host:$target:$enable_pgo_build" in
1383 *:*:*:no) ;;
1385 # Allow the PGO build only if we aren't building a compiler and
1386 # we are in a native configuration.
1387 no:$build:$build:yes | no:$build:$build:lto) ;;
1389 # Disallow the PGO bootstrap if we are building a compiler.
1390 yes:*:*:yes | yes:*:*:lto)
1391 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1393 *)
1394 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1395 ;;
1396 esac
1398 if test "$enable_pgo_build" != "no"; then
1399 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1400 old_CFLAGS="$CFLAGS"
1401 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1402 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1403 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1404 [PGO_BUILD_GEN_CFLAGS=])
1405 CFLAGS="$old_CFLAGS"
1406 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1407 AC_MSG_RESULT([yes])
1408 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1409 else
1410 AC_MSG_RESULT([no])
1411 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1412 fi
1414 if test "$enable_pgo_build" = "lto"; then
1415 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1416 old_CFLAGS="$CFLAGS"
1417 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1418 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1419 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1420 [PGO_BUILD_LTO_CFLAGS=])
1421 CFLAGS="$old_CFLAGS"
1422 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1423 AC_MSG_RESULT([yes])
1424 else
1425 AC_MSG_RESULT([no])
1426 AC_MSG_WARN([LTO is disabled for the PGO build])
1427 fi
1428 fi
1429 fi
1430 AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1431 AC_SUBST(PGO_BUILD_USE_CFLAGS)
1432 AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1434 # Used for setting $lt_cv_objdir
1435 _LT_CHECK_OBJDIR
1437 # Check for GMP, MPFR and MPC
1438 gmplibs="-lmpc -lmpfr -lgmp"
1439 gmpinc=
1440 have_gmp=no
1442 # Specify a location for mpc
1443 # check for this first so it ends up on the link line before mpfr.
1444 AC_ARG_WITH(mpc,
1445 [AS_HELP_STRING([--with-mpc=PATH],
1446 [specify prefix directory for installed MPC package.
1447 Equivalent to --with-mpc-include=PATH/include
1448 plus --with-mpc-lib=PATH/lib])])
1449 AC_ARG_WITH(mpc-include,
1450 [AS_HELP_STRING([--with-mpc-include=PATH],
1451 [specify directory for installed MPC include files])])
1452 AC_ARG_WITH(mpc-lib,
1453 [AS_HELP_STRING([--with-mpc-lib=PATH],
1454 [specify directory for the installed MPC library])])
1456 if test "x$with_mpc" != x; then
1457 gmplibs="-L$with_mpc/lib $gmplibs"
1458 gmpinc="-I$with_mpc/include $gmpinc"
1459 fi
1460 if test "x$with_mpc_include" != x; then
1461 gmpinc="-I$with_mpc_include $gmpinc"
1462 fi
1463 if test "x$with_mpc_lib" != x; then
1464 gmplibs="-L$with_mpc_lib $gmplibs"
1465 fi
1466 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1467 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1468 gmpinc='-I$$s/mpc/src '"$gmpinc"
1469 # Do not test the mpc version. Assume that it is sufficient, since
1470 # it is in the source tree, and the library has not been built yet
1471 # but it would be included on the link line in the version check below
1472 # hence making the test fail.
1473 have_gmp=yes
1474 fi
1476 # Specify a location for mpfr
1477 # check for this first so it ends up on the link line before gmp.
1478 AC_ARG_WITH(mpfr-dir,
1479 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1480 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1481 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1483 AC_ARG_WITH(mpfr,
1484 [AS_HELP_STRING([--with-mpfr=PATH],
1485 [specify prefix directory for installed MPFR package.
1486 Equivalent to --with-mpfr-include=PATH/include
1487 plus --with-mpfr-lib=PATH/lib])])
1488 AC_ARG_WITH(mpfr-include,
1489 [AS_HELP_STRING([--with-mpfr-include=PATH],
1490 [specify directory for installed MPFR include files])])
1491 AC_ARG_WITH(mpfr-lib,
1492 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1493 [specify directory for the installed MPFR library])])
1495 if test "x$with_mpfr" != x; then
1496 gmplibs="-L$with_mpfr/lib $gmplibs"
1497 gmpinc="-I$with_mpfr/include $gmpinc"
1498 fi
1499 if test "x$with_mpfr_include" != x; then
1500 gmpinc="-I$with_mpfr_include $gmpinc"
1501 fi
1502 if test "x$with_mpfr_lib" != x; then
1503 gmplibs="-L$with_mpfr_lib $gmplibs"
1504 fi
1505 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1506 # MPFR v3.1.0 moved the sources into a src sub-directory.
1507 if ! test -d ${srcdir}/mpfr/src; then
1508 AC_MSG_ERROR([dnl
1509 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1510 fi
1511 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1512 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1513 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1514 # Do not test the mpfr version. Assume that it is sufficient, since
1515 # it is in the source tree, and the library has not been built yet
1516 # but it would be included on the link line in the version check below
1517 # hence making the test fail.
1518 have_gmp=yes
1519 fi
1521 # Specify a location for gmp
1522 AC_ARG_WITH(gmp-dir,
1523 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1524 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1525 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1527 AC_ARG_WITH(gmp,
1528 [AS_HELP_STRING([--with-gmp=PATH],
1529 [specify prefix directory for the installed GMP package.
1530 Equivalent to --with-gmp-include=PATH/include
1531 plus --with-gmp-lib=PATH/lib])])
1532 AC_ARG_WITH(gmp-include,
1533 [AS_HELP_STRING([--with-gmp-include=PATH],
1534 [specify directory for installed GMP include files])])
1535 AC_ARG_WITH(gmp-lib,
1536 [AS_HELP_STRING([--with-gmp-lib=PATH],
1537 [specify directory for the installed GMP library])])
1540 if test "x$with_gmp" != x; then
1541 gmplibs="-L$with_gmp/lib $gmplibs"
1542 gmpinc="-I$with_gmp/include $gmpinc"
1543 fi
1544 if test "x$with_gmp_include" != x; then
1545 gmpinc="-I$with_gmp_include $gmpinc"
1546 fi
1547 if test "x$with_gmp_lib" != x; then
1548 gmplibs="-L$with_gmp_lib $gmplibs"
1549 fi
1550 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1551 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1552 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1553 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1554 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1555 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1556 # Do not test the gmp version. Assume that it is sufficient, since
1557 # it is in the source tree, and the library has not been built yet
1558 # but it would be included on the link line in the version check below
1559 # hence making the test fail.
1560 have_gmp=yes
1561 fi
1563 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1564 have_gmp=yes
1565 saved_CFLAGS="$CFLAGS"
1566 CFLAGS="$CFLAGS $gmpinc"
1567 # Check for the recommended and required versions of GMP.
1568 AC_MSG_CHECKING([for the correct version of gmp.h])
1569 AC_TRY_COMPILE([#include "gmp.h"],[
1570 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1571 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1572 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1573 choke me
1574 #endif
1575 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1576 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1577 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1578 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1579 choke me
1580 #endif
1581 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1582 [AC_MSG_RESULT([no]); have_gmp=no])
1584 # If we have GMP, check the MPFR version.
1585 if test x"$have_gmp" = xyes; then
1586 # Check for the recommended and required versions of MPFR.
1587 AC_MSG_CHECKING([for the correct version of mpfr.h])
1588 AC_TRY_COMPILE([#include <gmp.h>
1589 #include <mpfr.h>],[
1590 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1591 choke me
1592 #endif
1593 ], [AC_TRY_COMPILE([#include <gmp.h>
1594 #include <mpfr.h>],[
1595 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1596 choke me
1597 #endif
1598 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1599 [AC_MSG_RESULT([no]); have_gmp=no])
1600 fi
1602 # Check for the MPC header version.
1603 if test x"$have_gmp" = xyes ; then
1604 # Check for the recommended and required versions of MPC.
1605 AC_MSG_CHECKING([for the correct version of mpc.h])
1606 AC_TRY_COMPILE([#include <mpc.h>],[
1607 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1608 choke me
1609 #endif
1610 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1611 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1612 choke me
1613 #endif
1614 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1615 [AC_MSG_RESULT([no]); have_gmp=no])
1616 fi
1618 # Now check the MPFR library.
1619 if test x"$have_gmp" = xyes; then
1620 saved_LIBS="$LIBS"
1621 LIBS="$LIBS $gmplibs"
1622 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1623 AC_TRY_LINK([#include <mpc.h>],[
1624 mpfr_t n;
1625 mpfr_t x;
1626 mpc_t c;
1627 int t;
1628 mpfr_init (n);
1629 mpfr_init (x);
1630 mpfr_atan2 (n, n, x, GMP_RNDN);
1631 mpfr_erfc (n, x, GMP_RNDN);
1632 mpfr_subnormalize (x, t, GMP_RNDN);
1633 mpfr_clear(n);
1634 mpfr_clear(x);
1635 mpc_init2 (c, 53);
1636 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1637 mpc_cosh (c, c, MPC_RNDNN);
1638 mpc_pow (c, c, c, MPC_RNDNN);
1639 mpc_acosh (c, c, MPC_RNDNN);
1640 mpc_clear (c);
1641 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1642 LIBS="$saved_LIBS"
1643 fi
1645 CFLAGS="$saved_CFLAGS"
1647 # The library versions listed in the error message below should match
1648 # the HARD-minimums enforced above.
1649 if test x$have_gmp != xyes; then
1650 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1651 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1652 their locations. Source code for these libraries can be found at
1653 their respective hosting sites as well as at
1654 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1655 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1656 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1657 make sure that you have installed both the libraries and the header
1658 files. They may be located in separate packages.])
1659 fi
1660 fi
1662 # Flags needed for both GMP, MPFR and/or MPC.
1663 AC_SUBST(gmplibs)
1664 AC_SUBST(gmpinc)
1665 AC_SUBST(extra_mpfr_configure_flags)
1666 AC_SUBST(extra_mpc_gmp_configure_flags)
1667 AC_SUBST(extra_mpc_mpfr_configure_flags)
1668 AC_SUBST(extra_isl_gmp_configure_flags)
1670 # Libraries to use for stage1 or when not bootstrapping.
1671 AC_ARG_WITH(stage1-libs,
1672 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1673 [if test "$withval" = "no" -o "$withval" = "yes"; then
1674 stage1_libs=
1675 else
1676 stage1_libs=$withval
1677 fi],
1678 [stage1_libs=])
1679 AC_SUBST(stage1_libs)
1681 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1682 # default is yes if gcc is being built; no otherwise. The reason for
1683 # this default is that gdb is sometimes linked against GNU Source
1684 # Highlight, which is a shared library that uses C++ exceptions. In
1685 # this case, -static-libstdc++ will cause crashes.
1686 AC_ARG_WITH(static-standard-libraries,
1687 [AS_HELP_STRING([--with-static-standard-libraries],
1688 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1689 [], [with_static_standard_libraries=auto])
1690 if test "$with_static_standard_libraries" = auto; then
1691 with_static_standard_libraries=$have_compiler
1692 fi
1694 # Linker flags to use for stage1 or when not bootstrapping.
1695 AC_ARG_WITH(stage1-ldflags,
1696 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1697 [if test "$withval" = "no" -o "$withval" = "yes"; then
1698 stage1_ldflags=
1699 else
1700 stage1_ldflags=$withval
1701 fi],
1702 [stage1_ldflags=
1703 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1704 # if supported. But if the user explicitly specified the libraries to use,
1705 # trust that they are doing what they want.
1706 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1707 -a "$have_static_libs" = yes; then
1708 stage1_ldflags="-static-libstdc++ -static-libgcc"
1709 fi])
1710 AC_SUBST(stage1_ldflags)
1712 # Libraries to use for stage2 and later builds.
1713 AC_ARG_WITH(boot-libs,
1714 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1715 [if test "$withval" = "no" -o "$withval" = "yes"; then
1716 poststage1_libs=
1717 else
1718 poststage1_libs=$withval
1719 fi],
1720 [poststage1_libs=])
1721 AC_SUBST(poststage1_libs)
1723 # Linker flags to use for stage2 and later builds.
1724 AC_ARG_WITH(boot-ldflags,
1725 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1726 [linker flags for stage2 and later])],
1727 [if test "$withval" = "no" -o "$withval" = "yes"; then
1728 poststage1_ldflags=
1729 else
1730 poststage1_ldflags=$withval
1731 fi],
1732 [poststage1_ldflags=
1733 # In stages 2 and 3, default to linking libstdc++ and libgcc
1734 # statically. But if the user explicitly specified the libraries to
1735 # use, trust that they are doing what they want.
1736 if test "$poststage1_libs" = ""; then
1737 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1738 fi])
1739 AC_SUBST(poststage1_ldflags)
1741 # GCC GRAPHITE dependency isl.
1742 # Basic setup is inlined here, actual checks are in config/isl.m4
1744 AC_ARG_WITH(isl,
1745 [AS_HELP_STRING(
1746 [--with-isl=PATH],
1747 [Specify prefix directory for the installed isl package.
1748 Equivalent to --with-isl-include=PATH/include
1749 plus --with-isl-lib=PATH/lib])])
1751 # Treat --without-isl as a request to disable
1752 # GRAPHITE support and skip all following checks.
1753 if test "x$with_isl" != "xno"; then
1754 # Check for isl
1755 dnl Provide configure switches and initialize islinc & isllibs
1756 dnl with user input.
1757 ISL_INIT_FLAGS
1758 dnl The versions of isl that work for Graphite
1759 ISL_CHECK_VERSION()
1760 dnl Only execute fail-action, if isl has been requested.
1761 ISL_IF_FAILED([
1762 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1763 fi
1765 # If the isl check failed, disable builds of in-tree variant of isl
1766 if test "x$with_isl" = xno ||
1767 test "x$gcc_cv_isl" = xno; then
1768 noconfigdirs="$noconfigdirs isl"
1769 islinc=
1770 fi
1772 AC_SUBST(isllibs)
1773 AC_SUBST(islinc)
1775 # Check for LTO support.
1776 AC_ARG_ENABLE(lto,
1777 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1778 enable_lto=$enableval,
1779 enable_lto=yes; default_enable_lto=yes)
1781 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1782 build_lto_plugin=yes
1783 ],[if test x"$default_enable_lto" = x"yes" ; then
1784 case $target in
1785 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1786 # On other non-ELF platforms, LTO has yet to be validated.
1787 *) enable_lto=no ;;
1788 esac
1789 else
1790 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1791 # It would also be nice to check the binutils support, but we don't
1792 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1793 # warn during gcc/ subconfigure; unless you're bootstrapping with
1794 # -flto it won't be needed until after installation anyway.
1795 case $target in
1796 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1797 *) if test x"$enable_lto" = x"yes"; then
1798 AC_MSG_ERROR([LTO support is not enabled for this target.])
1799 fi
1800 ;;
1801 esac
1802 fi
1803 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1804 # Build it unless LTO was explicitly disabled.
1805 case $target in
1806 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1807 *) ;;
1808 esac
1809 ])
1811 AC_ARG_ENABLE(linker-plugin-configure-flags,
1812 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1813 [additional flags for configuring linker plugins @<:@none@:>@])],
1814 extra_linker_plugin_configure_flags=$enableval,
1815 extra_linker_plugin_configure_flags=)
1816 AC_SUBST(extra_linker_plugin_configure_flags)
1817 AC_ARG_ENABLE(linker-plugin-flags,
1818 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1819 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1820 extra_linker_plugin_flags=$enableval,
1821 extra_linker_plugin_flags=)
1822 AC_SUBST(extra_linker_plugin_flags)
1824 # Enable --enable-host-shared.
1825 # Checked early to determine whether jit is an 'all' language
1826 AC_ARG_ENABLE(host-shared,
1827 [AS_HELP_STRING([--enable-host-shared],
1828 [build host code as shared libraries])],
1829 [host_shared=$enableval], [host_shared=no])
1830 AC_SUBST(host_shared)
1832 # By default, C and C++ are the only stage 1 languages.
1833 stage1_languages=,c,
1835 # Target libraries that we bootstrap.
1836 bootstrap_target_libs=,target-libgcc,
1838 # Figure out what language subdirectories are present.
1839 # Look if the user specified --enable-languages="..."; if not, use
1840 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1841 # go away some day.
1842 # NB: embedded tabs in this IF block -- do not untabify
1843 if test -d ${srcdir}/gcc; then
1844 if test x"${enable_languages+set}" != xset; then
1845 if test x"${LANGUAGES+set}" = xset; then
1846 enable_languages="${LANGUAGES}"
1847 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1848 else
1849 enable_languages=default
1850 fi
1851 else
1852 if test x"${enable_languages}" = x ||
1853 test x"${enable_languages}" = xyes;
1854 then
1855 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1856 exit 1
1857 fi
1858 fi
1859 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1861 # 'f95' is the old name for the 'fortran' language. We issue a warning
1862 # and make the substitution.
1863 case ,${enable_languages}, in
1864 *,f95,*)
1865 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1866 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1867 ;;
1868 esac
1870 # If bootstrapping, C++ must be enabled.
1871 case ",$enable_languages,:$enable_bootstrap" in
1872 *,c++,*:*) ;;
1873 *:yes)
1874 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1875 enable_languages="${enable_languages},c++"
1876 else
1877 AC_MSG_ERROR([bootstrapping requires c++ sources])
1878 fi
1879 ;;
1880 esac
1882 # First scan to see if an enabled language requires some other language.
1883 # We assume that a given config-lang.in will list all the language
1884 # front ends it requires, even if some are required indirectly.
1885 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1886 case ${lang_frag} in
1887 ..) ;;
1888 # The odd quoting in the next line works around
1889 # an apparent bug in bash 1.12 on linux.
1890 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1891 *)
1892 # From the config-lang.in, get $language, $lang_requires, and
1893 # $lang_requires_boot_languages.
1894 language=
1895 lang_requires=
1896 lang_requires_boot_languages=
1897 # set srcdir during sourcing lang_frag to the gcc dir.
1898 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1899 # polutes this shell
1900 saved_srcdir=${srcdir}
1901 srcdir=${srcdir}/gcc . ${lang_frag}
1902 srcdir=${saved_srcdir}
1903 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1904 case ,${enable_languages}, in
1905 *,$other,*) ;;
1906 *,default,*) ;;
1907 *,all,*) ;;
1908 *,$language,*)
1909 echo " \`$other' language required by \`$language'; enabling" 1>&2
1910 enable_languages="${enable_languages},${other}"
1911 ;;
1912 esac
1913 done
1914 for other in ${lang_requires_boot_languages} ; do
1915 if test "$other" != "c"; then
1916 case ,${enable_stage1_languages}, in
1917 *,$other,*) ;;
1918 *,default,*) ;;
1919 *,all,*) ;;
1920 *)
1921 case ,${enable_languages}, in
1922 *,$language,*)
1923 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1924 enable_stage1_languages="$enable_stage1_languages,${other}"
1925 ;;
1926 esac
1927 ;;
1928 esac
1929 fi
1930 done
1931 ;;
1932 esac
1933 done
1935 new_enable_languages=,c,
1937 # If LTO is enabled, add the LTO front end.
1938 if test "$enable_lto" = "yes" ; then
1939 case ,${enable_languages}, in
1940 *,lto,*) ;;
1941 *) enable_languages="${enable_languages},lto" ;;
1942 esac
1943 if test "${build_lto_plugin}" = "yes" ; then
1944 configdirs="$configdirs lto-plugin"
1945 fi
1946 fi
1948 # If we're building an offloading compiler, add the LTO front end.
1949 if test x"$enable_as_accelerator_for" != x ; then
1950 case ,${enable_languages}, in
1951 *,lto,*) ;;
1952 *) enable_languages="${enable_languages},lto" ;;
1953 esac
1954 fi
1956 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
1957 potential_languages=,c,
1959 enabled_target_libs=
1960 disabled_target_libs=
1962 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1963 case ${lang_frag} in
1964 ..) ;;
1965 # The odd quoting in the next line works around
1966 # an apparent bug in bash 1.12 on linux.
1967 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1968 *)
1969 # From the config-lang.in, get $language, $target_libs,
1970 # $lang_dirs, $boot_language, and $build_by_default
1971 language=
1972 target_libs=
1973 lang_dirs=
1974 subdir_requires=
1975 boot_language=no
1976 build_by_default=yes
1977 # set srcdir during sourcing. See above about save & restore
1978 saved_srcdir=${srcdir}
1979 srcdir=${srcdir}/gcc . ${lang_frag}
1980 srcdir=${saved_srcdir}
1981 if test x${language} = x; then
1982 echo "${lang_frag} doesn't set \$language." 1>&2
1983 exit 1
1984 fi
1986 if test "$language" = "c++"; then
1987 boot_language=yes
1988 fi
1990 add_this_lang=no
1991 # C is always enabled, so no need to add it again
1992 if test "$language" != "c"; then
1993 case ,${enable_languages}, in
1994 *,${language},*)
1995 # Language was explicitly selected; include it
1996 add_this_lang=yes
1997 ;;
1998 *,all,*)
1999 # All languages are enabled
2000 add_this_lang=all
2001 ;;
2002 *,default,*)
2003 # 'default' was selected, select it if it is a default language
2004 add_this_lang=${build_by_default}
2005 ;;
2006 esac
2007 fi
2009 # Disable languages that need other directories if these aren't available.
2010 for i in $subdir_requires; do
2011 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2012 case ${add_this_lang} in
2013 yes)
2014 # Specifically requested language; tell them.
2015 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2016 ;;
2017 all)
2018 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2019 add_this_lang=unsupported
2020 ;;
2021 *)
2022 # Silently disable.
2023 add_this_lang=unsupported
2024 ;;
2025 esac
2026 done
2028 # Disable Ada if no preexisting GNAT is available.
2029 case ${add_this_lang}:${language}:${have_gnat} in
2030 yes:ada:no)
2031 # Specifically requested language; tell them.
2032 AC_MSG_ERROR([GNAT is required to build $language])
2033 ;;
2034 all:ada:no)
2035 AC_MSG_WARN([GNAT is required to build $language])
2036 add_this_lang=unsupported
2037 ;;
2038 *:ada:no)
2039 # Silently disable.
2040 add_this_lang=unsupported
2041 ;;
2042 esac
2044 # Disable jit if -enable-host-shared not specified
2045 case ${add_this_lang}:${language}:${host_shared} in
2046 yes:jit:no)
2047 # PR jit/64780: explicitly specify --enable-host-shared
2048 AC_MSG_ERROR([
2049 Enabling language "jit" requires --enable-host-shared.
2051 --enable-host-shared typically slows the rest of the compiler down by
2052 a few %, so you must explicitly enable it.
2054 If you want to build both the jit and the regular compiler, it is often
2055 best to do this via two separate configure/builds, in separate
2056 directories, to avoid imposing the performance cost of
2057 --enable-host-shared on the regular compiler.])
2058 ;;
2059 all:jit:no)
2060 AC_MSG_WARN([--enable-host-shared required to build $language])
2061 add_this_lang=unsupported
2062 ;;
2063 *:jit:no)
2064 # Silently disable.
2065 add_this_lang=unsupported
2066 ;;
2067 esac
2069 # Disable a language that is unsupported by the target.
2070 case "${add_this_lang}: $unsupported_languages " in
2071 no:*) ;;
2072 unsupported:*) ;;
2073 *:*" $language "*)
2074 AC_MSG_WARN([${language} not supported for this target])
2075 add_this_lang=unsupported
2076 ;;
2077 esac
2079 case $add_this_lang in
2080 unsupported)
2081 # Remove language-dependent dirs.
2082 disabled_target_libs="$disabled_target_libs $target_libs"
2083 noconfigdirs="$noconfigdirs $lang_dirs"
2084 ;;
2085 no)
2086 # Remove language-dependent dirs; still show language as supported.
2087 disabled_target_libs="$disabled_target_libs $target_libs"
2088 noconfigdirs="$noconfigdirs $lang_dirs"
2089 potential_languages="${potential_languages}${language},"
2090 ;;
2091 all|yes)
2092 new_enable_languages="${new_enable_languages}${language},"
2093 potential_languages="${potential_languages}${language},"
2094 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2095 enabled_target_libs="$enabled_target_libs $target_libs"
2096 case "${boot_language}:,$enable_stage1_languages," in
2097 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2098 # Add to (comma-separated) list of stage 1 languages.
2099 case ",$stage1_languages," in
2100 *,$language,* | ,yes, | ,all,) ;;
2101 *) stage1_languages="${stage1_languages}${language}," ;;
2102 esac
2103 # We need to bootstrap any supporting libraries.
2104 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2105 ;;
2106 esac
2107 ;;
2108 esac
2109 ;;
2110 esac
2111 done
2113 # Add target libraries which are only needed for disabled languages
2114 # to noconfigdirs.
2115 if test -n "$disabled_target_libs"; then
2116 for dir in $disabled_target_libs; do
2117 case " $enabled_target_libs " in
2118 *" ${dir} "*) ;;
2119 *) noconfigdirs="$noconfigdirs $dir" ;;
2120 esac
2121 done
2122 fi
2124 AC_ARG_ENABLE(stage1-languages,
2125 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2126 [choose additional languages to build during
2127 stage1. Mostly useful for compiler development])],
2128 [case ,${enable_stage1_languages}, in
2129 ,no,|,,)
2130 # Set it to something that will have no effect in the loop below
2131 enable_stage1_languages=c ;;
2132 ,yes,)
2133 enable_stage1_languages=`echo $new_enable_languages | \
2134 sed -e "s/^,//" -e "s/,$//" ` ;;
2135 *,all,*)
2136 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2137 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2138 esac
2140 # Add "good" languages from enable_stage1_languages to stage1_languages,
2141 # while "bad" languages go in missing_languages. Leave no duplicates.
2142 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2143 case $potential_languages in
2144 *,$i,*)
2145 case $stage1_languages in
2146 *,$i,*) ;;
2147 *) stage1_languages="$stage1_languages$i," ;;
2148 esac ;;
2149 *)
2150 case $missing_languages in
2151 *,$i,*) ;;
2152 *) missing_languages="$missing_languages$i," ;;
2153 esac ;;
2154 esac
2155 done])
2157 # Remove leading/trailing commas that were added for simplicity
2158 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2159 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2160 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2161 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2163 if test "x$missing_languages" != x; then
2164 AC_MSG_ERROR([
2165 The following requested languages could not be built: ${missing_languages}
2166 Supported languages are: ${potential_languages}])
2167 fi
2168 if test "x$new_enable_languages" != "x$enable_languages"; then
2169 echo The following languages will be built: ${new_enable_languages}
2170 enable_languages="$new_enable_languages"
2171 fi
2173 AC_SUBST(stage1_languages)
2174 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2175 fi
2177 # Handle --disable-<component> generically.
2178 for dir in $configdirs $build_configdirs $target_configdirs ; do
2179 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2180 varname=`echo $dirname | sed -e s/+/_/g`
2181 if eval test x\${enable_${varname}} "=" xno ; then
2182 noconfigdirs="$noconfigdirs $dir"
2183 fi
2184 done
2186 # Check for Boehm's garbage collector
2187 AC_ARG_ENABLE(objc-gc,
2188 [AS_HELP_STRING([--enable-objc-gc],
2189 [enable use of Boehm's garbage collector with the
2190 GNU Objective-C runtime])])
2191 AC_ARG_WITH([target-bdw-gc],
2192 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2193 [specify prefix directory for installed bdw-gc package.
2194 Equivalent to --with-target-bdw-gc-include=PATH/include
2195 plus --with-target-bdw-gc-lib=PATH/lib])])
2196 AC_ARG_WITH([target-bdw-gc-include],
2197 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2198 [specify directories for installed bdw-gc include files])])
2199 AC_ARG_WITH([target-bdw-gc-lib],
2200 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2201 [specify directories for installed bdw-gc library])])
2203 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2204 AC_MSG_CHECKING([for bdw garbage collector])
2205 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2206 dnl no bdw-gw options, assume default locations
2207 AC_MSG_RESULT([using bdw-gc in default locations])
2208 else
2209 dnl bdw-gw options, first error checking, complete checking in libobjc
2210 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2211 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2212 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2213 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2214 else
2215 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2216 fi
2217 fi
2218 esac
2220 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2221 case ,${enable_languages}, in
2222 *,c++,*)
2223 # Disable libitm, libsanitizer if we're not building libstdc++
2224 case "${noconfigdirs}" in
2225 *target-libstdc++-v3*)
2226 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2227 ;;
2228 *) ;;
2229 esac
2230 ;;
2231 *)
2232 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2233 ;;
2234 esac
2236 # If gcc/ is not in the source tree then we'll not be building a
2237 # target compiler, assume in that case we don't want to build any
2238 # target libraries or tools.
2239 #
2240 # This was added primarily for the benefit for binutils-gdb who reuse
2241 # this configure script, but don't always have target tools available.
2242 if test ! -d ${srcdir}/gcc; then
2243 skipdirs="${skipdirs} ${target_configdirs}"
2244 fi
2246 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2247 # $build_configdirs and $target_configdirs.
2248 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2250 notsupp=""
2251 for dir in . $skipdirs $noconfigdirs ; do
2252 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2253 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2254 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2255 if test -r $srcdir/$dirname/configure ; then
2256 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2257 true
2258 else
2259 notsupp="$notsupp $dir"
2260 fi
2261 fi
2262 fi
2263 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2264 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2265 if test -r $srcdir/$dirname/configure ; then
2266 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2267 true
2268 else
2269 notsupp="$notsupp $dir"
2270 fi
2271 fi
2272 fi
2273 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2274 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2275 if test -r $srcdir/$dirname/configure ; then
2276 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2277 true
2278 else
2279 notsupp="$notsupp $dir"
2280 fi
2281 fi
2282 fi
2283 done
2285 # Quietly strip out all directories which aren't configurable in this tree.
2286 # This relies on all configurable subdirectories being autoconfiscated, which
2287 # is now the case.
2288 build_configdirs_all="$build_configdirs"
2289 build_configdirs=
2290 for i in ${build_configdirs_all} ; do
2291 j=`echo $i | sed -e s/build-//g`
2292 if test -f ${srcdir}/$j/configure ; then
2293 build_configdirs="${build_configdirs} $i"
2294 fi
2295 done
2297 configdirs_all="$configdirs"
2298 configdirs=
2299 for i in ${configdirs_all} ; do
2300 if test -f ${srcdir}/$i/configure ; then
2301 configdirs="${configdirs} $i"
2302 fi
2303 done
2305 target_configdirs_all="$target_configdirs"
2306 target_configdirs=
2307 for i in ${target_configdirs_all} ; do
2308 j=`echo $i | sed -e s/target-//g`
2309 if test -f ${srcdir}/$j/configure ; then
2310 target_configdirs="${target_configdirs} $i"
2311 fi
2312 done
2314 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2315 # so we have to add it after the preceding checks.
2316 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2317 then
2318 case " $configdirs " in
2319 *" libiberty "*)
2320 # If we can build libiberty, we can also build libiberty-linker-plugin.
2321 configdirs="$configdirs libiberty-linker-plugin"
2322 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2323 --with-libiberty=../libiberty-linker-plugin";;
2324 *)
2325 AC_MSG_ERROR([libiberty missing]);;
2326 esac
2327 fi
2329 # Sometimes we have special requirements for the host libiberty.
2330 extra_host_libiberty_configure_flags=
2331 extra_host_zlib_configure_flags=
2332 case " $configdirs " in
2333 *" lto-plugin "* | *" libcc1 "*)
2334 # When these are to be built as shared libraries, the same applies to
2335 # libiberty.
2336 extra_host_libiberty_configure_flags=--enable-shared
2337 ;;
2338 *" bfd "*)
2339 # When bfd is to be built as a shared library, the same applies to
2340 # zlib.
2341 if test "$enable_shared" = "yes"; then
2342 extra_host_zlib_configure_flags=--enable-host-shared
2343 fi
2344 ;;
2345 esac
2346 AC_SUBST(extra_host_libiberty_configure_flags)
2347 AC_SUBST(extra_host_zlib_configure_flags)
2349 # Produce a warning message for the subdirs we can't configure.
2350 # This isn't especially interesting in the Cygnus tree, but in the individual
2351 # FSF releases, it's important to let people know when their machine isn't
2352 # supported by the one or two programs in a package.
2354 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2355 # If $appdirs is non-empty, at least one of those directories must still
2356 # be configured, or we error out. (E.g., if the gas release supports a
2357 # specified target in some subdirs but not the gas subdir, we shouldn't
2358 # pretend that all is well.)
2359 if test -n "$appdirs" ; then
2360 for dir in $appdirs ; do
2361 if test -r $dir/Makefile.in ; then
2362 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2363 appdirs=""
2364 break
2365 fi
2366 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2367 appdirs=""
2368 break
2369 fi
2370 fi
2371 done
2372 if test -n "$appdirs" ; then
2373 echo "*** This configuration is not supported by this package." 1>&2
2374 exit 1
2375 fi
2376 fi
2377 # Okay, some application will build, or we don't care to check. Still
2378 # notify of subdirs not getting built.
2379 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2380 echo " ${notsupp}" 1>&2
2381 echo " (Any other directories should still work fine.)" 1>&2
2382 fi
2384 case "$host" in
2385 *msdosdjgpp*)
2386 enable_gdbtk=no ;;
2387 esac
2389 # To find our prefix, in gcc_cv_tool_prefix.
2390 ACX_TOOL_DIRS
2392 copy_dirs=
2394 AC_ARG_WITH([build-sysroot],
2395 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2396 [use sysroot as the system root during the build])],
2397 [if test x"$withval" != x ; then
2398 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2399 fi],
2400 [SYSROOT_CFLAGS_FOR_TARGET=])
2401 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2403 AC_ARG_WITH([debug-prefix-map],
2404 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2405 [map A to B, C to D ... in debug information])],
2406 [if test x"$withval" != x; then
2407 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2408 for debug_map in $withval; do
2409 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2410 done
2411 fi],
2412 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2413 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2415 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2416 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2417 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2418 # We want to ensure that TARGET libraries (which we know are built with
2419 # gcc) are built with "-O2 -g", so include those options when setting
2420 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2421 if test "x$CFLAGS_FOR_TARGET" = x; then
2422 if test "x${is_cross_compiler}" = xyes; then
2423 CFLAGS_FOR_TARGET="-g -O2"
2424 else
2425 CFLAGS_FOR_TARGET=$CFLAGS
2426 case " $CFLAGS " in
2427 *" -O2 "*) ;;
2428 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2429 esac
2430 case " $CFLAGS " in
2431 *" -g "* | *" -g3 "*) ;;
2432 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2433 esac
2434 fi
2435 fi
2436 AC_SUBST(CFLAGS_FOR_TARGET)
2438 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2439 if test "x${is_cross_compiler}" = xyes; then
2440 CXXFLAGS_FOR_TARGET="-g -O2"
2441 else
2442 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2443 case " $CXXFLAGS " in
2444 *" -O2 "*) ;;
2445 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2446 esac
2447 case " $CXXFLAGS " in
2448 *" -g "* | *" -g3 "*) ;;
2449 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2450 esac
2451 fi
2452 fi
2453 AC_SUBST(CXXFLAGS_FOR_TARGET)
2455 AC_SUBST(LDFLAGS_FOR_TARGET)
2457 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2458 # the named directory are copied to $(tooldir)/sys-include.
2459 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2460 if test x${is_cross_compiler} = xno ; then
2461 echo 1>&2 '***' --with-headers is only supported when cross compiling
2462 exit 1
2463 fi
2464 if test x"${with_headers}" != xyes ; then
2465 x=${gcc_cv_tool_prefix}
2466 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2467 fi
2468 fi
2470 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2471 # the name directories are copied to $(tooldir)/lib. Multiple directories
2472 # are permitted.
2473 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2474 if test x${is_cross_compiler} = xno ; then
2475 echo 1>&2 '***' --with-libs is only supported when cross compiling
2476 exit 1
2477 fi
2478 if test x"${with_libs}" != xyes ; then
2479 # Copy the libraries in reverse order, so that files in the first named
2480 # library override files in subsequent libraries.
2481 x=${gcc_cv_tool_prefix}
2482 for l in ${with_libs}; do
2483 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2484 done
2485 fi
2486 fi
2488 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2489 #
2490 # This is done by determining whether or not the appropriate directory
2491 # is available, and by checking whether or not specific configurations
2492 # have requested that this magic not happen.
2493 #
2494 # The command line options always override the explicit settings in
2495 # configure.ac, and the settings in configure.ac override this magic.
2496 #
2497 # If the default for a toolchain is to use GNU as and ld, and you don't
2498 # want to do that, then you should use the --without-gnu-as and
2499 # --without-gnu-ld options for the configure script. Similarly, if
2500 # the default is to use the included zlib and you don't want to do that,
2501 # you should use the --with-system-zlib option for the configure script.
2503 if test x${use_gnu_as} = x &&
2504 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2505 with_gnu_as=yes
2506 extra_host_args="$extra_host_args --with-gnu-as"
2507 fi
2509 if test x${use_gnu_ld} = x &&
2510 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2511 with_gnu_ld=yes
2512 extra_host_args="$extra_host_args --with-gnu-ld"
2513 fi
2515 if test x${use_included_zlib} = x &&
2516 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2517 :
2518 else
2519 with_system_zlib=yes
2520 extra_host_args="$extra_host_args --with-system-zlib"
2521 fi
2523 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2524 # can detect this case.
2526 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2527 with_newlib=yes
2528 extra_host_args="$extra_host_args --with-newlib"
2529 fi
2531 # Handle ${copy_dirs}
2532 set fnord ${copy_dirs}
2533 shift
2534 while test $# != 0 ; do
2535 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2536 :
2537 else
2538 echo Copying $1 to $2
2540 # Use the install script to create the directory and all required
2541 # parent directories.
2542 if test -d $2 ; then
2543 :
2544 else
2545 echo >config.temp
2546 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2547 fi
2549 # Copy the directory, assuming we have tar.
2550 # FIXME: Should we use B in the second tar? Not all systems support it.
2551 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2553 # It is the responsibility of the user to correctly adjust all
2554 # symlinks. If somebody can figure out how to handle them correctly
2555 # here, feel free to add the code.
2557 echo $1 > $2/COPIED
2558 fi
2559 shift; shift
2560 done
2562 # Determine a target-dependent exec_prefix that the installed
2563 # gcc will search in. Keep this list sorted by triplet, with
2564 # the *-*-osname triplets last.
2565 md_exec_prefix=
2566 case "${target}" in
2567 i[[34567]]86-pc-msdosdjgpp*)
2568 md_exec_prefix=/dev/env/DJDIR/bin
2569 ;;
2570 *-*-hpux* | \
2571 *-*-nto-qnx* | \
2572 *-*-solaris2*)
2573 md_exec_prefix=/usr/ccs/bin
2574 ;;
2575 esac
2577 extra_arflags_for_target=
2578 extra_nmflags_for_target=
2579 extra_ranlibflags_for_target=
2580 target_makefile_frag=/dev/null
2581 case "${target}" in
2582 spu-*-*)
2583 target_makefile_frag="config/mt-spu"
2584 ;;
2585 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2586 target_makefile_frag="config/mt-sde"
2587 ;;
2588 mipsisa*-*-elfoabi*)
2589 target_makefile_frag="config/mt-mips-elfoabi"
2590 ;;
2591 mips*-*-*linux* | mips*-*-gnu*)
2592 target_makefile_frag="config/mt-mips-gnu"
2593 ;;
2594 nios2-*-elf*)
2595 target_makefile_frag="config/mt-nios2-elf"
2596 ;;
2597 *-*-linux-android*)
2598 target_makefile_frag="config/mt-android"
2599 ;;
2600 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2601 target_makefile_frag="config/mt-gnu"
2602 ;;
2603 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2604 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2605 # commands to handle both 32-bit and 64-bit objects. These flags are
2606 # harmless if we're using GNU nm or ar.
2607 extra_arflags_for_target=" -X32_64"
2608 extra_nmflags_for_target=" -B -X32_64"
2609 ;;
2610 esac
2612 alphaieee_frag=/dev/null
2613 case $target in
2614 alpha*-*-*)
2615 # This just makes sure to use the -mieee option to build target libs.
2616 # This should probably be set individually by each library.
2617 alphaieee_frag="config/mt-alphaieee"
2618 ;;
2619 esac
2621 # If --enable-target-optspace always use -Os instead of -O2 to build
2622 # the target libraries, similarly if it is not specified, use -Os
2623 # on selected platforms.
2624 ospace_frag=/dev/null
2625 case "${enable_target_optspace}:${target}" in
2626 yes:*)
2627 ospace_frag="config/mt-ospace"
2628 ;;
2629 :d30v-*)
2630 ospace_frag="config/mt-d30v"
2631 ;;
2632 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2633 ospace_frag="config/mt-ospace"
2634 ;;
2635 no:* | :*)
2636 ;;
2637 *)
2638 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2639 ;;
2640 esac
2642 # Some systems (e.g., one of the i386-aix systems the gas testers are
2643 # using) don't handle "\$" correctly, so don't use it here.
2644 tooldir='${exec_prefix}'/${target_noncanonical}
2645 build_tooldir=${tooldir}
2647 # Create a .gdbinit file which runs the one in srcdir
2648 # and tells GDB to look there for source files.
2650 if test -r ${srcdir}/.gdbinit ; then
2651 case ${srcdir} in
2652 .) ;;
2653 *) cat > ./.gdbinit <<EOF
2654 # ${NO_EDIT}
2655 dir ${srcdir}
2656 dir .
2657 source ${srcdir}/.gdbinit
2658 EOF
2659 ;;
2660 esac
2661 fi
2663 # Make sure that the compiler is able to generate an executable. If it
2664 # can't, we are probably in trouble. We don't care whether we can run the
2665 # executable--we might be using a cross compiler--we only care whether it
2666 # can be created. At this point the main configure script has set CC.
2667 we_are_ok=no
2668 echo "int main () { return 0; }" > conftest.c
2669 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2670 if test $? = 0 ; then
2671 if test -s conftest || test -s conftest.exe ; then
2672 we_are_ok=yes
2673 fi
2674 fi
2675 case $we_are_ok in
2676 no)
2677 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2678 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2679 rm -f conftest*
2680 exit 1
2681 ;;
2682 esac
2683 rm -f conftest*
2685 # Decide which environment variable is used to find dynamic libraries.
2686 case "${host}" in
2687 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2688 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2689 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2690 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2691 esac
2693 # On systems where the dynamic library environment variable is PATH,
2694 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2695 # built executables to PATH.
2696 if test "$RPATH_ENVVAR" = PATH; then
2697 GCC_SHLIB_SUBDIR=/shlib
2698 else
2699 GCC_SHLIB_SUBDIR=
2700 fi
2702 # Adjust the toplevel makefile according to whether bootstrap was selected.
2703 case $enable_bootstrap in
2704 yes)
2705 bootstrap_suffix=bootstrap
2706 BUILD_CONFIG=bootstrap-debug
2707 ;;
2708 no)
2709 bootstrap_suffix=no-bootstrap
2710 BUILD_CONFIG=
2711 ;;
2712 esac
2714 AC_MSG_CHECKING(for default BUILD_CONFIG)
2716 AC_ARG_WITH([build-config],
2717 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2718 [use config/NAME.mk build configuration])],
2719 [case $with_build_config in
2720 yes) with_build_config= ;;
2721 no) with_build_config= BUILD_CONFIG= ;;
2722 esac])
2724 if test "x${with_build_config}" != x; then
2725 BUILD_CONFIG=$with_build_config
2726 else
2727 case $BUILD_CONFIG in
2728 bootstrap-debug)
2729 if echo "int f (void) { return 0; }" > conftest.c &&
2730 ${CC} -c conftest.c &&
2731 mv conftest.o conftest.o.g0 &&
2732 ${CC} -c -g conftest.c &&
2733 mv conftest.o conftest.o.g &&
2734 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2735 :
2736 else
2737 BUILD_CONFIG=
2738 fi
2739 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2740 ;;
2741 esac
2742 fi
2743 AC_MSG_RESULT($BUILD_CONFIG)
2744 AC_SUBST(BUILD_CONFIG)
2746 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2747 AC_MSG_CHECKING([for --enable-vtable-verify])
2748 AC_ARG_ENABLE(vtable-verify,
2749 [AS_HELP_STRING([--enable-vtable-verify],
2750 [Enable vtable verification feature])],
2751 [case "$enableval" in
2752 yes) enable_vtable_verify=yes ;;
2753 no) enable_vtable_verify=no ;;
2754 *) enable_vtable_verify=no;;
2755 esac],
2756 [enable_vtable_verify=no])
2757 AC_MSG_RESULT($enable_vtable_verify)
2759 # Record target_configdirs and the configure arguments for target and
2760 # build configuration in Makefile.
2761 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2762 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2763 bootstrap_fixincludes=no
2765 # If we are building libgomp, bootstrap it.
2766 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2767 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2768 fi
2770 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2771 # or bootstrap-ubsan, bootstrap it.
2772 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2773 case "$BUILD_CONFIG" in
2774 *bootstrap-asan* | *bootstrap-ubsan* )
2775 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2776 bootstrap_fixincludes=yes
2777 ;;
2778 esac
2779 fi
2781 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2782 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2783 test "$enable_vtable_verify" != no; then
2784 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2785 fi
2787 # Determine whether gdb needs tk/tcl or not.
2788 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2789 # and in that case we want gdb to be built without tk. Ugh!
2790 # In fact I believe gdb is the *only* package directly dependent on tk,
2791 # so we should be able to put the 'maybe's in unconditionally and
2792 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2793 # 100% sure that that's safe though.
2795 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2796 case "$enable_gdbtk" in
2797 no)
2798 GDB_TK="" ;;
2799 yes)
2800 GDB_TK="${gdb_tk}" ;;
2801 *)
2802 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2803 # distro. Eventually someone will fix this and move Insight, nee
2804 # gdbtk to a separate directory.
2805 if test -d ${srcdir}/gdb/gdbtk ; then
2806 GDB_TK="${gdb_tk}"
2807 else
2808 GDB_TK=""
2809 fi
2810 ;;
2811 esac
2812 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2813 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2815 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
2816 # else does, only include them if one of these is built. The Makefile
2817 # provides the ordering, so it's enough here to add to the list.
2818 case " ${configdirs} " in
2819 *\ gdb\ *)
2820 configdirs="${configdirs} gnulib gdbsupport"
2821 ;;
2822 *\ gdbserver\ *)
2823 configdirs="${configdirs} gnulib gdbsupport"
2824 ;;
2825 *\ sim\ *)
2826 configdirs="${configdirs} gnulib"
2827 ;;
2828 esac
2830 # Strip out unwanted targets.
2832 # While at that, we remove Makefiles if we were started for recursive
2833 # configuration, so that the top-level Makefile reconfigures them,
2834 # like we used to do when configure itself was recursive.
2836 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2837 # but now we're fixing up the Makefile ourselves with the additional
2838 # commands passed to AC_CONFIG_FILES. Use separate variables
2839 # extrasub-{build,host,target} not because there is any reason to split
2840 # the substitutions up that way, but only to remain below the limit of
2841 # 99 commands in a script, for HP-UX sed.
2843 # Do not nest @if/@endif or @unless/@endunless pairs, because
2844 # configure will not warn you at all.
2846 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2847 yes:yes:*\ gold\ *:*,c++,*) ;;
2848 yes:yes:*\ gold\ *:*)
2849 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2850 ;;
2851 esac
2853 extrasub_build=
2854 for module in ${build_configdirs} ; do
2855 if test -z "${no_recursion}" \
2856 && test -f ${build_subdir}/${module}/Makefile; then
2857 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2858 rm -f ${build_subdir}/${module}/Makefile
2859 fi
2860 extrasub_build="$extrasub_build
2861 /^@if build-$module\$/d
2862 /^@endif build-$module\$/d
2863 /^@unless build-$module\$/,/^@endunless build-$module\$/d
2864 /^@if build-$module-$bootstrap_suffix\$/d
2865 /^@endif build-$module-$bootstrap_suffix\$/d
2866 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
2867 done
2868 extrasub_host=
2869 for module in ${configdirs} ; do
2870 if test -z "${no_recursion}"; then
2871 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2872 if test -f ${file}; then
2873 echo 1>&2 "*** removing ${file} to force reconfigure"
2874 rm -f ${file}
2875 fi
2876 done
2877 fi
2878 case ${module},${bootstrap_fixincludes} in
2879 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2880 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2881 esac
2882 extrasub_host="$extrasub_host
2883 /^@if $module\$/d
2884 /^@endif $module\$/d
2885 /^@unless $module\$/,/^@endunless $module\$/d
2886 /^@if $module-$host_bootstrap_suffix\$/d
2887 /^@endif $module-$host_bootstrap_suffix\$/d
2888 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
2889 done
2890 extrasub_target=
2891 for module in ${target_configdirs} ; do
2892 if test -z "${no_recursion}" \
2893 && test -f ${target_subdir}/${module}/Makefile; then
2894 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2895 rm -f ${target_subdir}/${module}/Makefile
2896 fi
2898 # We only bootstrap target libraries listed in bootstrap_target_libs.
2899 case $bootstrap_target_libs in
2900 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2901 *) target_bootstrap_suffix=no-bootstrap ;;
2902 esac
2904 extrasub_target="$extrasub_target
2905 /^@if target-$module\$/d
2906 /^@endif target-$module\$/d
2907 /^@unless target-$module\$/,/^@endunless target-$module\$/d
2908 /^@if target-$module-$target_bootstrap_suffix\$/d
2909 /^@endif target-$module-$target_bootstrap_suffix\$/d
2910 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
2911 done
2913 # Do the final fixup along with target modules.
2914 extrasub_target="$extrasub_target
2915 /^@if /,/^@endif /d
2916 /^@unless /d
2917 /^@endunless /d"
2919 if test "$enable_pgo_build" != "no"; then
2920 extrasub_build="$extrasub_build
2921 /^@if pgo-build\$/d
2922 /^@endif pgo-build\$/d"
2923 fi
2925 # Create the serialization dependencies. This uses a temporary file.
2927 AC_ARG_ENABLE([serial-configure],
2928 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2929 [force sequential configuration of
2930 sub-packages for the host, target or build
2931 machine, or all sub-packages])])
2933 case ${enable_serial_configure} in
2934 yes)
2935 enable_serial_build_configure=yes
2936 enable_serial_host_configure=yes
2937 enable_serial_target_configure=yes
2938 ;;
2939 esac
2941 # These force 'configure's to be done one at a time, to avoid problems
2942 # with contention over a shared config.cache.
2943 rm -f serdep.tmp
2944 echo '# serdep.tmp' > serdep.tmp
2945 olditem=
2946 test "x${enable_serial_build_configure}" = xyes &&
2947 for item in ${build_configdirs} ; do
2948 case ${olditem} in
2949 "") ;;
2950 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2951 esac
2952 olditem=${item}
2953 done
2954 olditem=
2955 test "x${enable_serial_host_configure}" = xyes &&
2956 for item in ${configdirs} ; do
2957 case ${olditem} in
2958 "") ;;
2959 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2960 esac
2961 olditem=${item}
2962 done
2963 olditem=
2964 test "x${enable_serial_target_configure}" = xyes &&
2965 for item in ${target_configdirs} ; do
2966 case ${olditem} in
2967 "") ;;
2968 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2969 esac
2970 olditem=${item}
2971 done
2972 serialization_dependencies=serdep.tmp
2973 AC_SUBST_FILE(serialization_dependencies)
2975 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2976 # target, nonopt, and variable assignments. These are the ones we
2977 # might not want to pass down to subconfigures. The exception being
2978 # --cache-file=/dev/null, which is used to turn off the use of cache
2979 # files altogether, and which should be passed on to subconfigures.
2980 # Also strip program-prefix, program-suffix, and program-transform-name,
2981 # so that we can pass down a consistent program-transform-name.
2982 baseargs=
2983 tbaseargs=
2984 keep_next=no
2985 skip_next=no
2986 eval "set -- $ac_configure_args"
2987 for ac_arg
2988 do
2989 if test X"$skip_next" = X"yes"; then
2990 skip_next=no
2991 continue
2992 fi
2993 if test X"$keep_next" = X"yes"; then
2994 case $ac_arg in
2995 *\'*)
2996 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2997 esac
2998 baseargs="$baseargs '$ac_arg'"
2999 tbaseargs="$tbaseargs '$ac_arg'"
3000 keep_next=no
3001 continue
3002 fi
3004 # Handle separated arguments. Based on the logic generated by
3005 # autoconf 2.59.
3006 case $ac_arg in
3007 *=* | --config-cache | -C | -disable-* | --disable-* \
3008 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3009 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3010 | -with-* | --with-* | -without-* | --without-* | --x)
3011 separate_arg=no
3012 ;;
3013 -*)
3014 separate_arg=yes
3015 ;;
3016 *)
3017 separate_arg=no
3018 ;;
3019 esac
3021 skip_targ=no
3022 case $ac_arg in
3023 changequote(,)
3024 --with-* | --without-*)
3025 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3027 case $libopt in
3028 *[-_]include)
3029 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3030 ;;
3031 *[-_]lib)
3032 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3033 ;;
3034 *)
3035 lib=$libopt
3036 ;;
3037 esac
3038 changequote([,])
3040 case $lib in
3041 mpc | mpfr | gmp | isl)
3042 # If we're processing --with-$lib, --with-$lib-include or
3043 # --with-$lib-lib, for one of the libs above, and target is
3044 # different from host, don't pass the current argument to any
3045 # target library's configure.
3046 if test x$is_cross_compiler = xyes; then
3047 skip_targ=yes
3048 fi
3049 ;;
3050 esac
3051 ;;
3052 esac
3054 case "$ac_arg" in
3055 --cache-file=/dev/null | \
3056 -cache-file=/dev/null )
3057 # Handled here to avoid the test to skip args below.
3058 baseargs="$baseargs '$ac_arg'"
3059 tbaseargs="$tbaseargs '$ac_arg'"
3060 # Assert: $separate_arg should always be no.
3061 keep_next=$separate_arg
3062 ;;
3063 --no*)
3064 continue
3065 ;;
3066 --c* | \
3067 --sr* | \
3068 --ho* | \
3069 --bu* | \
3070 --t* | \
3071 --program-* | \
3072 -cache_file* | \
3073 -srcdir* | \
3074 -host* | \
3075 -build* | \
3076 -target* | \
3077 -program-prefix* | \
3078 -program-suffix* | \
3079 -program-transform-name* )
3080 skip_next=$separate_arg
3081 continue
3082 ;;
3083 -*)
3084 # An option. Add it.
3085 case $ac_arg in
3086 *\'*)
3087 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3088 esac
3089 baseargs="$baseargs '$ac_arg'"
3090 if test X"$skip_targ" = Xno; then
3091 tbaseargs="$tbaseargs '$ac_arg'"
3092 fi
3093 keep_next=$separate_arg
3094 ;;
3095 *)
3096 # Either a variable assignment, or a nonopt (triplet). Don't
3097 # pass it down; let the Makefile handle this.
3098 continue
3099 ;;
3100 esac
3101 done
3102 # Remove the initial space we just introduced and, as these will be
3103 # expanded by make, quote '$'.
3104 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3106 # Add in --program-transform-name, after --program-prefix and
3107 # --program-suffix have been applied to it. Autoconf has already
3108 # doubled dollar signs and backslashes in program_transform_name; we want
3109 # the backslashes un-doubled, and then the entire thing wrapped in single
3110 # quotes, because this will be expanded first by make and then by the shell.
3111 # Also, because we want to override the logic in subdir configure scripts to
3112 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3113 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3114 ${program_transform_name}
3115 EOF_SED
3116 gcc_transform_name=`cat conftestsed.out`
3117 rm -f conftestsed.out
3118 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3119 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3120 if test "$silent" = yes; then
3121 baseargs="$baseargs --silent"
3122 tbaseargs="$tbaseargs --silent"
3123 fi
3124 baseargs="$baseargs --disable-option-checking"
3125 tbaseargs="$tbaseargs --disable-option-checking"
3127 # Record and document user additions to sub configure arguments.
3128 AC_ARG_VAR([build_configargs],
3129 [additional configure arguments for build directories])
3130 AC_ARG_VAR([host_configargs],
3131 [additional configure arguments for host directories])
3132 AC_ARG_VAR([target_configargs],
3133 [additional configure arguments for target directories])
3135 # For the build-side libraries, we just need to pretend we're native,
3136 # and not use the same cache file. Multilibs are neither needed nor
3137 # desired. We can't even use the same cache file for all build-side
3138 # libraries, as they're compiled differently; some with C, some with
3139 # C++ or with different feature-enabling options.
3140 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3142 # For host modules, accept cache file option, or specification as blank.
3143 case "${cache_file}" in
3144 "") # empty
3145 cache_file_option="" ;;
3146 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3147 cache_file_option="--cache-file=${cache_file}" ;;
3148 *) # relative path
3149 cache_file_option="--cache-file=../${cache_file}" ;;
3150 esac
3152 # Host dirs don't like to share a cache file either, horribly enough.
3153 # This seems to be due to autoconf 2.5x stupidity.
3154 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3156 target_configargs="$target_configargs ${tbaseargs}"
3158 # Passing a --with-cross-host argument lets the target libraries know
3159 # whether they are being built with a cross-compiler or being built
3160 # native. However, it would be better to use other mechanisms to make the
3161 # sorts of decisions they want to make on this basis. Please consider
3162 # this option to be deprecated. FIXME.
3163 if test x${is_cross_compiler} = xyes ; then
3164 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3165 fi
3167 # Special user-friendly check for native x86_64-linux build, if
3168 # multilib is not explicitly enabled.
3169 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3170 x86_64-*linux*:yes:$build:$build:)
3171 # Make sure we have a development environment that handles 32-bit
3172 dev64=no
3173 echo "int main () { return 0; }" > conftest.c
3174 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3175 if test $? = 0 ; then
3176 if test -s conftest || test -s conftest.exe ; then
3177 dev64=yes
3178 fi
3179 fi
3180 rm -f conftest*
3181 if test x${dev64} != xyes ; then
3182 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.])
3183 fi
3184 ;;
3185 esac
3187 # Default to --enable-multilib.
3188 if test x${enable_multilib} = x ; then
3189 target_configargs="--enable-multilib ${target_configargs}"
3190 fi
3192 # Pass --with-newlib if appropriate. Note that target_configdirs has
3193 # changed from the earlier setting of with_newlib.
3194 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3195 target_configargs="--with-newlib ${target_configargs}"
3196 fi
3198 # Different target subdirs use different values of certain variables
3199 # (notably CXX). Worse, multilibs use *lots* of different values.
3200 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3201 # it doesn't automatically accept command-line overrides of them.
3202 # This means it's not safe for target subdirs to share a cache file,
3203 # which is disgusting, but there you have it. Hopefully this can be
3204 # fixed in future. It's still worthwhile to use a cache file for each
3205 # directory. I think.
3207 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3208 # We need to pass --target, as newer autoconf's requires consistency
3209 # for target_alias and gcc doesn't manage it consistently.
3210 target_configargs="--cache-file=./config.cache ${target_configargs}"
3212 FLAGS_FOR_TARGET=
3213 case " $target_configdirs " in
3214 *" newlib "*)
3215 case " $target_configargs " in
3216 *" --with-newlib "*)
3217 case "$target" in
3218 *-cygwin*)
3219 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3220 ;;
3221 esac
3223 # If we're not building GCC, don't discard standard headers.
3224 if test -d ${srcdir}/gcc; then
3225 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3227 if test "${build}" != "${host}"; then
3228 # On Canadian crosses, CC_FOR_TARGET will have already been set
3229 # by `configure', so we won't have an opportunity to add -Bgcc/
3230 # to it. This is right: we don't want to search that directory
3231 # for binaries, but we want the header files in there, so add
3232 # them explicitly.
3233 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3235 # Someone might think of using the pre-installed headers on
3236 # Canadian crosses, in case the installed compiler is not fully
3237 # compatible with the compiler being built. In this case, it
3238 # would be better to flag an error than risking having
3239 # incompatible object files being constructed. We can't
3240 # guarantee that an error will be flagged, but let's hope the
3241 # compiler will do it, when presented with incompatible header
3242 # files.
3243 fi
3244 fi
3246 case "${target}-${is_cross_compiler}" in
3247 i[[3456789]]86-*-linux*-no)
3248 # Here host == target, so we don't need to build gcc,
3249 # so we don't want to discard standard headers.
3250 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3251 ;;
3252 *)
3253 # If we're building newlib, use its generic headers last, but search
3254 # for any libc-related directories first (so make it the last -B
3255 # switch).
3256 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3258 # If we're building libgloss, find the startup file, simulator library
3259 # and linker script.
3260 case " $target_configdirs " in
3261 *" libgloss "*)
3262 # Look for startup file, simulator library and maybe linker script.
3263 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3264 # Look for libnosys.a in case the target needs it.
3265 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3266 # Most targets have the linker script in the source directory.
3267 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3268 ;;
3269 esac
3270 ;;
3271 esac
3272 ;;
3273 esac
3274 ;;
3275 esac
3277 case "$target" in
3278 x86_64-*mingw* | *-w64-mingw*)
3279 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3280 # however, use a symlink named 'mingw' in ${prefix} .
3281 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3282 ;;
3283 *-mingw*)
3284 # MinGW can't be handled as Cygwin above since it does not use newlib.
3285 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3286 ;;
3287 esac
3289 # Allow the user to override the flags for
3290 # our build compiler if desired.
3291 if test x"${build}" = x"${host}" ; then
3292 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3293 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3294 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3295 fi
3297 # On Canadian crosses, we'll be searching the right directories for
3298 # the previously-installed cross compiler, so don't bother to add
3299 # flags for directories within the install tree of the compiler
3300 # being built; programs in there won't even run.
3301 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3302 # Search for pre-installed headers if nothing else fits.
3303 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3304 fi
3306 if test "x${use_gnu_ld}" = x &&
3307 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3308 # Arrange for us to find uninstalled linker scripts.
3309 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3310 fi
3312 # Search for other target-specific linker scripts and such.
3313 case "${target}" in
3314 mep*)
3315 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3316 ;;
3317 esac
3319 # Makefile fragments.
3320 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3321 do
3322 eval fragval=\$$frag
3323 if test $fragval != /dev/null; then
3324 eval $frag=${srcdir}/$fragval
3325 fi
3326 done
3327 AC_SUBST_FILE(host_makefile_frag)
3328 AC_SUBST_FILE(target_makefile_frag)
3329 AC_SUBST_FILE(alphaieee_frag)
3330 AC_SUBST_FILE(ospace_frag)
3332 # Miscellanea: directories, flags, etc.
3333 AC_SUBST(RPATH_ENVVAR)
3334 AC_SUBST(GCC_SHLIB_SUBDIR)
3335 AC_SUBST(tooldir)
3336 AC_SUBST(build_tooldir)
3337 AC_SUBST(CONFIGURE_GDB_TK)
3338 AC_SUBST(GDB_TK)
3339 AC_SUBST(INSTALL_GDB_TK)
3341 # Build module lists & subconfigure args.
3342 AC_SUBST(build_configargs)
3343 AC_SUBST(build_configdirs)
3345 # Host module lists & subconfigure args.
3346 AC_SUBST(host_configargs)
3347 AC_SUBST(configdirs)
3348 AC_SUBST(target_configdirs)
3350 # Target module lists & subconfigure args.
3351 AC_SUBST(target_configargs)
3354 # Build tools.
3355 AC_SUBST(AR_FOR_BUILD)
3356 AC_SUBST(AS_FOR_BUILD)
3357 AC_SUBST(CC_FOR_BUILD)
3358 AC_SUBST(CFLAGS_FOR_BUILD)
3359 AC_SUBST(CXXFLAGS_FOR_BUILD)
3360 AC_SUBST(CXX_FOR_BUILD)
3361 AC_SUBST(DLLTOOL_FOR_BUILD)
3362 AC_SUBST(GFORTRAN_FOR_BUILD)
3363 AC_SUBST(GOC_FOR_BUILD)
3364 AC_SUBST(LDFLAGS_FOR_BUILD)
3365 AC_SUBST(LD_FOR_BUILD)
3366 AC_SUBST(NM_FOR_BUILD)
3367 AC_SUBST(RANLIB_FOR_BUILD)
3368 AC_SUBST(WINDMC_FOR_BUILD)
3369 AC_SUBST(WINDRES_FOR_BUILD)
3371 # Generate default definitions for YACC, M4, LEX and other programs that run
3372 # on the build machine. These are used if the Makefile can't locate these
3373 # programs in objdir.
3374 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3376 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3377 case " $build_configdirs " in
3378 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3379 esac
3381 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3382 case " $build_configdirs " in
3383 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3384 esac
3386 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3387 case " $build_configdirs " in
3388 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3389 esac
3391 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3392 case " $build_configdirs " in
3393 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3394 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3395 esac
3397 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3398 case " $build_configdirs " in
3399 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3400 esac
3402 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3403 case " $build_configdirs " in
3404 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3405 *)
3406 changequote(,)
3407 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3408 # higher, else we use the "missing" dummy.
3409 if ${MAKEINFO} --version \
3410 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3411 :
3412 else
3413 MAKEINFO="$MISSING makeinfo"
3414 fi
3415 ;;
3416 changequote([,])
3417 esac
3419 # FIXME: expect and dejagnu may become build tools?
3421 AC_CHECK_PROGS(EXPECT, expect, expect)
3422 case " $configdirs " in
3423 *" expect "*)
3424 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3425 ;;
3426 esac
3428 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3429 case " $configdirs " in
3430 *" dejagnu "*)
3431 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3432 ;;
3433 esac
3436 # Host tools.
3437 NCN_STRICT_CHECK_TOOLS(AR, ar)
3438 NCN_STRICT_CHECK_TOOLS(AS, as)
3439 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3440 NCN_STRICT_CHECK_TOOLS(LD, ld)
3441 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3442 NCN_STRICT_CHECK_TOOLS(NM, nm)
3443 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3444 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3445 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3446 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3447 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3448 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3449 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3450 AC_SUBST(CC)
3451 AC_SUBST(CXX)
3452 AC_SUBST(CFLAGS)
3453 AC_SUBST(CXXFLAGS)
3455 GCC_PLUGIN_OPTION(PLUGIN_OPTION)
3456 AR_PLUGIN_OPTION=
3457 RANLIB_PLUGIN_OPTION=
3458 if test -n "$PLUGIN_OPTION"; then
3459 if $AR --help 2>&1 | grep -q "\--plugin"; then
3460 AR_PLUGIN_OPTION="$PLUGIN_OPTION"
3461 fi
3462 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
3463 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
3464 fi
3465 else
3466 if test "$enable_pgo_build" != "no"; then
3467 AC_MSG_ERROR([AR with --plugin and rc is required for LTO build])
3468 fi
3469 fi
3470 AC_SUBST(AR_PLUGIN_OPTION)
3471 AC_SUBST(RANLIB_PLUGIN_OPTION)
3473 # Target tools.
3474 AC_ARG_WITH([build-time-tools],
3475 [AS_HELP_STRING([--with-build-time-tools=PATH],
3476 [use given path to find target tools during the build])],
3477 [case x"$withval" in
3478 x/*) ;;
3479 *)
3480 with_build_time_tools=
3481 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3482 ;;
3483 esac],
3484 [with_build_time_tools=])
3486 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3487 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3488 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3489 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3490 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3492 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3493 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3494 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3495 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3496 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3497 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3498 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3499 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3500 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3501 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3502 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3503 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3504 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3506 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3508 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3509 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3510 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3511 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3512 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3513 [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],
3514 c++)
3515 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3516 [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],
3517 c++)
3518 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3519 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3520 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3521 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3522 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3523 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3524 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3525 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3526 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3527 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3528 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3529 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3530 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3531 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3532 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3533 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3535 AC_SUBST(FLAGS_FOR_TARGET)
3536 AC_SUBST(RAW_CXX_FOR_TARGET)
3538 # Certain tools may need extra flags.
3539 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3540 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3541 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3543 # When building target libraries, except in a Canadian cross, we use
3544 # the same toolchain as the compiler we just built.
3545 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3546 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3547 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3548 if test $host = $build; then
3549 case " $configdirs " in
3550 *" gcc "*)
3551 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3552 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3553 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3554 ;;
3555 esac
3556 fi
3558 AC_SUBST(COMPILER_AS_FOR_TARGET)
3559 AC_SUBST(COMPILER_LD_FOR_TARGET)
3560 AC_SUBST(COMPILER_NM_FOR_TARGET)
3562 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3563 AC_ARG_ENABLE(maintainer-mode,
3564 [AS_HELP_STRING([--enable-maintainer-mode],
3565 [enable make rules and dependencies not useful
3566 (and sometimes confusing) to the casual installer])],
3567 USE_MAINTAINER_MODE=$enableval,
3568 USE_MAINTAINER_MODE=no)
3569 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3570 AC_SUBST(MAINTAINER_MODE_TRUE)
3571 AC_SUBST(MAINTAINER_MODE_FALSE)
3572 if test "$USE_MAINTAINER_MODE" = yes; then
3573 MAINTAINER_MODE_TRUE=
3574 MAINTAINER_MODE_FALSE='#'
3575 else
3576 MAINTAINER_MODE_TRUE='#'
3577 MAINTAINER_MODE_FALSE=
3578 fi
3579 MAINT=$MAINTAINER_MODE_TRUE
3580 AC_SUBST(MAINT)dnl
3582 # ---------------------
3583 # GCC bootstrap support
3584 # ---------------------
3586 # Stage specific cflags for build.
3587 stage1_cflags="-g"
3588 case $build in
3589 vax-*-*)
3590 case ${GCC} in
3591 yes) stage1_cflags="-g -Wa,-J" ;;
3592 *) stage1_cflags="-g -J" ;;
3593 esac ;;
3594 esac
3596 AC_SUBST(stage1_cflags)
3598 # Enable --enable-checking in stage1 of the compiler.
3599 AC_ARG_ENABLE(stage1-checking,
3600 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3601 [choose additional checking for stage1 of the compiler])],
3602 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3603 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3604 # For --disable-checking or implicit --enable-checking=release, avoid
3605 # setting --enable-checking=gc in the default stage1 checking for LTO
3606 # bootstraps. See PR62077.
3607 case $BUILD_CONFIG in
3608 *lto*)
3609 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3610 *)
3611 stage1_checking=--enable-checking=yes,types;;
3612 esac
3613 if test "x$enable_checking" = x && \
3614 test -d ${srcdir}/gcc && \
3615 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3616 stage1_checking=--enable-checking=yes,types,extra
3617 fi
3618 else
3619 stage1_checking=--enable-checking=$enable_checking,types
3620 fi])
3621 AC_SUBST(stage1_checking)
3623 # Enable -Werror in bootstrap stage2 and later.
3624 AC_ARG_ENABLE(werror,
3625 [AS_HELP_STRING([--enable-werror],
3626 [enable -Werror in bootstrap stage2 and later])],
3627 [
3628 case ${enable_werror} in
3629 yes) stage2_werror_flag="--enable-werror-always" ;;
3630 *) stage2_werror_flag="" ;;
3631 esac
3632 ],
3633 [
3634 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3635 case $BUILD_CONFIG in
3636 bootstrap-debug)
3637 stage2_werror_flag="--enable-werror-always" ;;
3638 "")
3639 stage2_werror_flag="--enable-werror-always" ;;
3640 esac
3641 fi
3642 ])
3644 AC_SUBST(stage2_werror_flag)
3646 # Specify what files to not compare during bootstrap.
3648 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3649 case "$target" in
3650 hppa*64*-*-hpux*) ;;
3651 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
3652 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3653 esac
3654 AC_SUBST(compare_exclusions)
3656 AC_CONFIG_FILES([Makefile],
3657 [sed "$extrasub_build" Makefile |
3658 sed "$extrasub_host" |
3659 sed "$extrasub_target" > mf$$
3660 mv -f mf$$ Makefile],
3661 [extrasub_build="$extrasub_build"
3662 extrasub_host="$extrasub_host"
3663 extrasub_target="$extrasub_target"])
3664 AC_OUTPUT