| blob | aab451467bdaa690a684de3e99a82e1aa2ffeb41 |
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, 2022 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(config/ax_cxx_compile_stdcxx.m4)
28 m4_include([libtool.m4])
29 m4_include([ltoptions.m4])
30 m4_include([ltsugar.m4])
31 m4_include([ltversion.m4])
32 m4_include([lt~obsolete.m4])
33 m4_include([config/isl.m4])
35 AC_INIT(move-if-change)
36 AC_DISABLE_OPTION_CHECKING
38 progname=$0
39 # if PWD already has a value, it is probably wrong.
40 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
42 # Export original configure arguments for use by sub-configures.
43 # Quote arguments with shell meta charatcers.
44 TOPLEVEL_CONFIGURE_ARGUMENTS=
45 set -- "$progname" "$@"
46 for ac_arg
47 do
48 case "$ac_arg" in
49 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
50 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
51 # if the argument is of the form -foo=baz, quote the baz part only
52 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
53 *) ;;
54 esac
55 # Add the quoted argument to the list.
56 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
57 done
58 if test "$silent" = yes; then
59 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
60 fi
61 # Remove the initial space we just introduced and, as these will be
62 # expanded by make, quote '$'.
63 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
64 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
66 # Find the build, host, and target systems.
67 ACX_NONCANONICAL_BUILD
68 ACX_NONCANONICAL_HOST
69 ACX_NONCANONICAL_TARGET
71 dnl Autoconf 2.5x and later will set a default program prefix if
72 dnl --target was used, even if it was the same as --host. Disable
73 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
74 dnl to take effect.
75 test "$host_noncanonical" = "$target_noncanonical" &&
76 test "$program_prefix$program_suffix$program_transform_name" = \
77 NONENONEs,x,x, &&
78 program_transform_name=s,y,y,
80 AC_CANONICAL_SYSTEM
81 AC_ARG_PROGRAM
83 m4_pattern_allow([^AS_FOR_TARGET$])dnl
84 m4_pattern_allow([^AS_FOR_BUILD$])dnl
86 # Get 'install' or 'install-sh' and its variants.
87 AC_PROG_INSTALL
88 ACX_PROG_LN
89 AC_PROG_LN_S
90 AC_PROG_SED
91 AC_PROG_AWK
93 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
95 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
96 # a relative path.
97 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
98 INSTALL="${srcpwd}/install-sh -c"
99 fi
101 # Set srcdir to "." if that's what it is.
102 # This is important for multilib support.
103 pwd=`${PWDCMD-pwd}`
104 if test "${pwd}" = "${srcpwd}" ; then
105 srcdir=.
106 fi
108 topsrcdir=$srcpwd
110 extra_host_args=
112 ### To add a new directory to the tree, first choose whether it is a target
113 ### or a host dependent tool. Then put it into the appropriate list
114 ### (library or tools, host or target), doing a dependency sort.
116 # Subdirs will be configured in the order listed in build_configdirs,
117 # configdirs, or target_configdirs; see the serialization section below.
119 # Dependency sorting is only needed when *configuration* must be done in
120 # a particular order. In all cases a dependency should be specified in
121 # the Makefile, whether or not it's implicitly specified here.
123 # Double entries in build_configdirs, configdirs, or target_configdirs may
124 # cause circular dependencies and break everything horribly.
126 # these library is used by various programs built for the build
127 # environment
128 #
129 build_libs="build-libiberty build-libcpp"
131 # these tools are built for the build environment
132 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
134 # these libraries are used by various programs built for the host environment
135 #f
136 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf"
138 # these tools are built for the host environment
139 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
140 # know that we are building the simulator.
141 # binutils, gas and ld appear in that order because it makes sense to run
142 # "make check" in that particular order.
143 # If --enable-gold is used, "gold" may replace "ld".
144 host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools c++tools"
146 # these libraries are built for the target environment, and are built after
147 # the host libraries and the host tools (which may be a cross compiler)
148 # Note that libiberty is not a target library.
149 target_libraries="target-libgcc \
150 target-libbacktrace \
151 target-libgloss \
152 target-newlib \
153 target-libgomp \
154 target-liboffloadmic \
155 target-libatomic \
156 target-libitm \
157 target-libstdc++-v3 \
158 target-libsanitizer \
159 target-libvtv \
160 target-libssp \
161 target-libquadmath \
162 target-libgfortran \
163 target-libffi \
164 target-libobjc \
165 target-libada \
166 target-libgo \
167 target-libphobos \
168 target-zlib"
170 # these tools are built using the target libraries, and are intended to
171 # run only in the target environment
172 #
173 # note: any program that *uses* libraries that are in the "target_libraries"
174 # list belongs in this list.
175 #
176 target_tools="target-rda"
178 ################################################################################
180 ## All tools belong in one of the four categories, and are assigned above
181 ## We assign ${configdirs} this way to remove all embedded newlines. This
182 ## is important because configure will choke if they ever get through.
183 ## ${configdirs} is directories we build using the host tools.
184 ## ${target_configdirs} is directories we build using the target tools.
185 configdirs=`echo ${host_libs} ${host_tools}`
186 target_configdirs=`echo ${target_libraries} ${target_tools}`
187 build_configdirs=`echo ${build_libs} ${build_tools}`
189 m4_divert_text([PARSE_ARGS],
190 [case $srcdir in
191 *" "*)
192 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
193 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
194 m4_popdef([AS_MESSAGE_LOG_FD])dnl
195 ;;
196 esac
197 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
198 ])
200 ################################################################################
202 srcname="gnu development package"
204 # This gets set non-empty for some net releases of packages.
205 appdirs=""
207 # Define is_cross_compiler to save on calls to 'test'.
208 is_cross_compiler=
209 if test x"${host}" = x"${target}" ; then
210 is_cross_compiler=no
211 else
212 is_cross_compiler=yes
213 fi
215 # Find the build and target subdir names.
216 GCC_TOPLEV_SUBDIRS
217 # Be sure to cover against remnants of an in-tree build.
218 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
219 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
220 Use a pristine source tree when building in a separate tree])
221 fi
223 # Skipdirs are removed silently.
224 skipdirs=
225 # Noconfigdirs are removed loudly.
226 noconfigdirs=""
228 use_gnu_ld=
229 # Make sure we don't let GNU ld be added if we didn't want it.
230 if test x$with_gnu_ld = xno ; then
231 use_gnu_ld=no
232 noconfigdirs="$noconfigdirs ld gold"
233 fi
235 use_gnu_as=
236 # Make sure we don't let GNU as be added if we didn't want it.
237 if test x$with_gnu_as = xno ; then
238 use_gnu_as=no
239 noconfigdirs="$noconfigdirs gas"
240 fi
242 use_included_zlib=
243 AC_ARG_WITH(system-zlib,
244 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
245 # Make sure we don't let ZLIB be added if we didn't want it.
246 if test x$with_system_zlib = xyes ; then
247 use_included_zlib=no
248 noconfigdirs="$noconfigdirs zlib"
249 fi
251 # Don't compile the bundled readline/libreadline.a if --with-system-readline
252 # is provided.
253 if test x$with_system_readline = xyes ; then
254 noconfigdirs="$noconfigdirs readline"
255 fi
257 AC_ARG_WITH(zstd,
258 [AS_HELP_STRING([--with-zstd], [Support zstd compressed debug sections (default=auto)])])
260 # some tools are so dependent upon X11 that if we're not building with X,
261 # it's not even worth trying to configure, much less build, that tool.
263 case ${with_x} in
264 yes | "") ;; # the default value for this tree is that X11 is available
265 no)
266 skipdirs="${skipdirs} tk itcl libgui"
267 # We won't be able to build gdbtk without X.
268 enable_gdbtk=no
269 ;;
270 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
271 esac
273 # Some are only suitable for cross toolchains.
274 # Remove these if host=target.
275 cross_only="target-libgloss target-newlib target-opcodes"
277 case $is_cross_compiler in
278 no) skipdirs="${skipdirs} ${cross_only}" ;;
279 esac
281 # If both --with-headers and --with-libs are specified, default to
282 # --without-newlib.
283 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
284 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
285 if test x"${with_newlib}" = x ; then
286 with_newlib=no
287 fi
288 fi
290 # Recognize --with-newlib/--without-newlib.
291 case ${with_newlib} in
292 no) skipdirs="${skipdirs} target-newlib" ;;
293 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
294 esac
296 AC_ARG_ENABLE(as-accelerator-for,
297 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
298 [build as offload target compiler.
299 Specify offload host triple by ARG])])
301 AC_ARG_ENABLE(offload-targets,
302 [AS_HELP_STRING([--enable-offload-targets=LIST],
303 [enable offloading to devices from comma-separated LIST of
304 TARGET[=DIR]. Use optional path to find offload target compiler
305 during the build])],
306 [
307 if test x"$enable_offload_targets" = x; then
308 AC_MSG_ERROR([no offload targets specified])
309 fi
310 ], [enable_offload_targets=])
312 AC_ARG_ENABLE(offload-defaulted,
313 [AS_HELP_STRING([--enable-offload-defaulted]
314 [If enabled, configured but not installed offload compilers and
315 libgomp plugins are silently ignored. Useful for distribution
316 compilers where those are in separate optional packages.])],
317 [enable_offload_defaulted=$enableval],
318 [enable_offload_defaulted=])
320 # Handle --enable-gold, --enable-ld.
321 # --disable-gold [--enable-ld]
322 # Build only ld. Default option.
323 # --enable-gold [--enable-ld]
324 # Build both gold and ld. Install gold as "ld.gold", install ld
325 # as "ld.bfd" and "ld".
326 # --enable-gold=default [--enable-ld]
327 # Build both gold and ld. Install gold as "ld.gold" and "ld",
328 # install ld as "ld.bfd".
329 # --enable-gold[=default] --disable-ld
330 # Build only gold, which is then installed as both "ld.gold" and "ld".
331 # --enable-gold --enable-ld=default
332 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
333 # and ld.bfd).
334 # In other words, ld is default
335 # --enable-gold=default --enable-ld=default
336 # Error.
338 default_ld=
339 AC_ARG_ENABLE(gold,
340 [AS_HELP_STRING([[--enable-gold[=ARG]]],
341 [build gold @<:@ARG={default,yes,no}@:>@])],
342 ENABLE_GOLD=$enableval,
343 ENABLE_GOLD=no)
344 case "${ENABLE_GOLD}" in
345 yes|default)
346 # Check for ELF target.
347 is_elf=no
348 case "${target}" in
349 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
350 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
351 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
352 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
353 case "${target}" in
354 *-*-linux*aout* | *-*-linux*oldld*)
355 ;;
356 *)
357 is_elf=yes
358 ;;
359 esac
360 esac
362 if test "$is_elf" = "yes"; then
363 # Check for target supported by gold.
364 case "${target}" in
365 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
366 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-* | loongarch*-*-*)
367 configdirs="$configdirs gold"
368 if test x${ENABLE_GOLD} = xdefault; then
369 default_ld=gold
370 fi
371 ENABLE_GOLD=yes
372 ;;
373 esac
374 fi
375 ;;
376 no)
377 ;;
378 *)
379 AC_MSG_ERROR([invalid --enable-gold argument])
380 ;;
381 esac
383 AC_ARG_ENABLE(ld,
384 [AS_HELP_STRING([[--enable-ld[=ARG]]],
385 [build ld @<:@ARG={default,yes,no}@:>@])],
386 ENABLE_LD=$enableval,
387 ENABLE_LD=yes)
389 case "${ENABLE_LD}" in
390 default)
391 if test x${default_ld} != x; then
392 AC_MSG_ERROR([either gold or ld can be the default ld])
393 fi
394 ;;
395 yes)
396 ;;
397 no)
398 if test x${ENABLE_GOLD} != xyes; then
399 AC_MSG_WARN([neither ld nor gold are enabled])
400 fi
401 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
402 ;;
403 *)
404 AC_MSG_ERROR([invalid --enable-ld argument])
405 ;;
406 esac
408 AC_ARG_ENABLE(gprofng,
409 [AS_HELP_STRING([[--enable-gprofng[=ARG]]],
410 [build gprofng @<:@ARG={yes,no}@:>@])],
411 enable_gprofng=$enableval,
412 enable_gprofng=yes)
413 if test "$enable_gprofng" = "yes"; then
414 case "${target}" in
415 x86_64-*-linux* | i?86-*-linux* | aarch64-*-linux*)
416 configdirs="$configdirs gprofng"
417 ;;
418 esac
419 fi
422 # PR gas/19109
423 # Decide the default method for compressing debug sections.
424 # Provide a configure time option to override our default.
425 AC_ARG_ENABLE(compressed_debug_sections,
426 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
427 [Enable compressed debug sections for gas, gold or ld by
428 default])],
429 [
430 if test x"$enable_compressed_debug_sections" = xyes; then
431 AC_MSG_ERROR([no program with compressed debug sections specified])
432 fi
433 ], [enable_compressed_debug_sections=])
435 # Select default compression algorithm.
436 AC_ARG_ENABLE(default_compressed_debug_sections_algorithm,
437 [AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}],
438 [Default compression algorithm for --enable-compressed-debug-sections.])],
439 [], [default_compressed_debug_sections_algorithm=])
441 # Configure extra directories which are host specific
443 case "${host}" in
444 *-cygwin*)
445 configdirs="$configdirs libtermcap" ;;
446 esac
448 # A target can indicate whether a language isn't supported for some reason.
449 # Only spaces may be used in this macro; not newlines or tabs.
450 unsupported_languages=
452 # Remove more programs from consideration, based on the host or
453 # target this usually means that a port of the program doesn't
454 # exist yet.
456 case "${host}" in
457 i[[3456789]]86-*-msdosdjgpp*)
458 noconfigdirs="$noconfigdirs tcl tk itcl"
459 ;;
460 esac
462 # Default to --disable-year2038 until we can handle differences between
463 # projects that use gnulib (which understands year 2038) and projects that
464 # do not (like BFD).
465 AC_ARG_ENABLE(year2038,
466 AS_HELP_STRING([--enable-year2038],
467 [enable support for timestamps past the year 2038]),
468 ENABLE_YEAR2038=$enableval,
469 ENABLE_YEAR2038=no)
470 enable_year2038=
471 if test "${ENABLE_YEAR2038}" = "no" ; then
472 enable_year2038=no
473 fi
475 AC_ARG_ENABLE(libquadmath,
476 AS_HELP_STRING([--disable-libquadmath],
477 [do not build libquadmath directory]),
478 ENABLE_LIBQUADMATH=$enableval,
479 ENABLE_LIBQUADMATH=yes)
480 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
481 noconfigdirs="$noconfigdirs target-libquadmath"
482 fi
485 AC_ARG_ENABLE(libquadmath-support,
486 AS_HELP_STRING([--disable-libquadmath-support],
487 [disable libquadmath support for Fortran]),
488 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
489 ENABLE_LIBQUADMATH_SUPPORT=yes)
490 enable_libquadmath_support=
491 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
492 enable_libquadmath_support=no
493 fi
496 AC_ARG_ENABLE(libada,
497 [AS_HELP_STRING([--enable-libada], [build libada directory])],
498 ENABLE_LIBADA=$enableval,
499 ENABLE_LIBADA=yes)
500 if test "${ENABLE_LIBADA}" != "yes" ; then
501 noconfigdirs="$noconfigdirs gnattools"
502 fi
504 AC_ARG_ENABLE(libssp,
505 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
506 ENABLE_LIBSSP=$enableval,
507 ENABLE_LIBSSP=yes)
509 AC_ARG_ENABLE(libstdcxx,
510 AS_HELP_STRING([--disable-libstdcxx],
511 [do not build libstdc++-v3 directory]),
512 ENABLE_LIBSTDCXX=$enableval,
513 ENABLE_LIBSTDCXX=default)
514 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
515 noconfigdirs="$noconfigdirs target-libstdc++-v3"
516 fi]
518 # If this is accelerator compiler and its target is intelmic we enable
519 # target liboffloadmic by default. If this is compiler with offloading
520 # for intelmic we enable host liboffloadmic by default. Otherwise
521 # liboffloadmic is disabled by default.
522 AC_ARG_ENABLE([liboffloadmic],
523 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
524 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
525 [case "$enableval" in
526 no | host | target)
527 enable_liboffloadmic=$enableval ;;
528 *)
529 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
530 esac],
531 [if test x"$enable_as_accelerator_for" != x; then
532 case "${target}" in
533 *-intelmic-* | *-intelmicemul-*)
534 enable_liboffloadmic=target
535 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
536 ;;
537 *)
538 enable_liboffloadmic=no
539 ;;
540 esac
541 else
542 case "${enable_offload_targets}" in
543 *-intelmic-* | *-intelmicemul-*)
544 enable_liboffloadmic=host
545 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
546 ;;
547 *)
548 enable_liboffloadmic=no
549 ;;
550 esac
551 fi])
552 AC_SUBST(extra_liboffloadmic_configure_flags)
554 # Enable libgomp by default on hosted POSIX systems, and a few others.
555 if test x$enable_libgomp = x ; then
556 case "${target}" in
557 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
558 ;;
559 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
560 ;;
561 *-*-solaris2* | *-*-hpux11*)
562 ;;
563 *-*-darwin* | *-*-aix*)
564 ;;
565 nvptx*-*-* | amdgcn*-*-*)
566 ;;
567 *)
568 noconfigdirs="$noconfigdirs target-libgomp"
569 ;;
570 esac
571 fi
573 # Disable libatomic on unsupported systems.
574 if test -d ${srcdir}/libatomic; then
575 if test x$enable_libatomic = x; then
576 AC_MSG_CHECKING([for libatomic support])
577 if (srcdir=${srcdir}/libatomic; \
578 . ${srcdir}/configure.tgt; \
579 test -n "$UNSUPPORTED")
580 then
581 AC_MSG_RESULT([no])
582 noconfigdirs="$noconfigdirs target-libatomic"
583 else
584 AC_MSG_RESULT([yes])
585 fi
586 fi
587 fi
589 # Disable liboffloadmic on unsupported systems.
590 if test -d ${srcdir}/liboffloadmic; then
591 if test x$enable_liboffloadmic != xno; then
592 AC_MSG_CHECKING([for liboffloadmic support])
593 if (srcdir=${srcdir}/liboffloadmic; \
594 . ${srcdir}/configure.tgt; \
595 test -n "$UNSUPPORTED")
596 then
597 AC_MSG_RESULT([no])
598 noconfigdirs="$noconfigdirs target-liboffloadmic"
599 else
600 AC_MSG_RESULT([yes])
601 fi
602 fi
603 fi
605 # Disable libitm on unsupported systems.
606 if test -d ${srcdir}/libitm; then
607 if test x$enable_libitm = x; then
608 AC_MSG_CHECKING([for libitm support])
609 if (srcdir=${srcdir}/libitm; \
610 . ${srcdir}/configure.tgt; \
611 test -n "$UNSUPPORTED")
612 then
613 AC_MSG_RESULT([no])
614 noconfigdirs="$noconfigdirs target-libitm"
615 else
616 AC_MSG_RESULT([yes])
617 fi
618 fi
619 fi
621 # Disable libsanitizer on unsupported systems.
622 if test -d ${srcdir}/libsanitizer; then
623 if test x$enable_libsanitizer = x; then
624 AC_MSG_CHECKING([for libsanitizer support])
625 if (srcdir=${srcdir}/libsanitizer; \
626 . ${srcdir}/configure.tgt; \
627 test -n "$UNSUPPORTED")
628 then
629 AC_MSG_RESULT([no])
630 noconfigdirs="$noconfigdirs target-libsanitizer"
631 else
632 AC_MSG_RESULT([yes])
633 fi
634 fi
635 fi
637 # Disable libvtv on unsupported systems.
638 if test -d ${srcdir}/libvtv; then
639 if test x$enable_libvtv = x; then
640 AC_MSG_CHECKING([for libvtv support])
641 if (srcdir=${srcdir}/libvtv; \
642 . ${srcdir}/configure.tgt; \
643 test "$VTV_SUPPORTED" != "yes")
644 then
645 AC_MSG_RESULT([no])
646 noconfigdirs="$noconfigdirs target-libvtv"
647 else
648 AC_MSG_RESULT([yes])
649 fi
650 fi
651 fi
653 # Disable libquadmath for some systems.
654 case "${target}" in
655 avr-*-*)
656 noconfigdirs="$noconfigdirs target-libquadmath"
657 ;;
658 # libquadmath is unused on AIX and libquadmath build process use of
659 # LD_LIBRARY_PATH can break AIX bootstrap.
660 powerpc-*-aix* | rs6000-*-aix*)
661 noconfigdirs="$noconfigdirs target-libquadmath"
662 ;;
663 esac
665 # Disable libssp for some systems.
666 case "${target}" in
667 avr-*-*)
668 # No hosted I/O support.
669 noconfigdirs="$noconfigdirs target-libssp"
670 ;;
671 bpf-*-*)
672 noconfigdirs="$noconfigdirs target-libssp"
673 ;;
674 powerpc-*-aix* | rs6000-*-aix*)
675 noconfigdirs="$noconfigdirs target-libssp"
676 ;;
677 pru-*-*)
678 # No hosted I/O support.
679 noconfigdirs="$noconfigdirs target-libssp"
680 ;;
681 rl78-*-*)
682 # libssp uses a misaligned load to trigger a fault, but the RL78
683 # doesn't fault for those - instead, it gives a build-time error
684 # for explicit misaligned loads.
685 noconfigdirs="$noconfigdirs target-libssp"
686 ;;
687 visium-*-*)
688 # No hosted I/O support.
689 noconfigdirs="$noconfigdirs target-libssp"
690 ;;
691 esac
693 # Disable libstdc++-v3 for some systems.
694 # Allow user to override this if they pass --enable-libstdcxx
695 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
696 case "${target}" in
697 *-*-vxworks*)
698 # VxWorks uses the Dinkumware C++ library.
699 noconfigdirs="$noconfigdirs target-libstdc++-v3"
700 ;;
701 amdgcn*-*-*)
702 # Not ported/fails to build when using newlib.
703 noconfigdirs="$noconfigdirs target-libstdc++-v3"
704 ;;
705 arm*-wince-pe*)
706 # the C++ libraries don't build on top of CE's C libraries
707 noconfigdirs="$noconfigdirs target-libstdc++-v3"
708 ;;
709 avr-*-*)
710 noconfigdirs="$noconfigdirs target-libstdc++-v3"
711 ;;
712 bpf-*-*)
713 noconfigdirs="$noconfigdirs target-libstdc++-v3"
714 ;;
715 ft32-*-*)
716 noconfigdirs="$noconfigdirs target-libstdc++-v3"
717 ;;
718 esac
719 fi
721 # Disable C++ on systems where it is known to not work.
722 # For testing, you can override this with --enable-languages=c++.
723 case ,${enable_languages}, in
724 *,c++,*)
725 ;;
726 *)
727 case "${target}" in
728 bpf-*-*)
729 unsupported_languages="$unsupported_languages c++"
730 ;;
731 esac
732 ;;
733 esac
735 # Disable Objc on systems where it is known to not work.
736 # For testing, you can override this with --enable-languages=objc.
737 case ,${enable_languages}, in
738 *,objc,*)
739 ;;
740 *)
741 case "${target}" in
742 bpf-*-*)
743 unsupported_languages="$unsupported_languages objc"
744 ;;
745 esac
746 ;;
747 esac
749 # Disable D on systems where it is known to not work.
750 # For testing, you can override this with --enable-languages=d.
751 case ,${enable_languages}, in
752 *,d,*)
753 ;;
754 *)
755 case "${target}" in
756 bpf-*-*)
757 unsupported_languages="$unsupported_languages d"
758 ;;
759 esac
760 ;;
761 esac
763 # Disable libphobos on unsupported systems.
764 # For testing, you can override this with --enable-libphobos.
765 if test -d ${srcdir}/libphobos; then
766 if test x$enable_libphobos = x; then
767 AC_MSG_CHECKING([for libphobos support])
768 if (srcdir=${srcdir}/libphobos; \
769 . ${srcdir}/configure.tgt; \
770 test "$LIBPHOBOS_SUPPORTED" != "yes")
771 then
772 AC_MSG_RESULT([no])
773 noconfigdirs="$noconfigdirs target-libphobos"
774 else
775 AC_MSG_RESULT([yes])
776 fi
777 fi
778 fi
780 # Disable Fortran for some systems.
781 case "${target}" in
782 mmix-*-*)
783 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
784 unsupported_languages="$unsupported_languages fortran"
785 ;;
786 bpf-*-*)
787 unsupported_languages="$unsupported_languages fortran"
788 ;;
789 esac
791 # Disable libffi for some systems.
792 case "${target}" in
793 powerpc-*-darwin*)
794 ;;
795 i[[3456789]]86-*-darwin*)
796 ;;
797 x86_64-*-darwin[[912]]*)
798 ;;
799 *-*-darwin*)
800 noconfigdirs="$noconfigdirs target-libffi"
801 ;;
802 *-*-netware*)
803 noconfigdirs="$noconfigdirs target-libffi"
804 ;;
805 *-*-phoenix*)
806 noconfigdirs="$noconfigdirs target-libffi"
807 ;;
808 *-*-rtems*)
809 noconfigdirs="$noconfigdirs target-libffi"
810 ;;
811 *-*-tpf*)
812 noconfigdirs="$noconfigdirs target-libffi"
813 ;;
814 *-*-uclinux*)
815 noconfigdirs="$noconfigdirs target-libffi"
816 ;;
817 *-*-vxworks*)
818 noconfigdirs="$noconfigdirs target-libffi"
819 ;;
820 aarch64*-*-freebsd*)
821 noconfigdirs="$noconfigdirs target-libffi"
822 ;;
823 alpha*-*-*vms*)
824 noconfigdirs="$noconfigdirs target-libffi"
825 ;;
826 arm*-*-freebsd*)
827 noconfigdirs="$noconfigdirs target-libffi"
828 ;;
829 arm-wince-pe)
830 noconfigdirs="$noconfigdirs target-libffi"
831 ;;
832 arm*-*-symbianelf*)
833 noconfigdirs="$noconfigdirs target-libffi"
834 ;;
835 bpf-*-*)
836 noconfigdirs="$noconfigdirs target-libffi"
837 ;;
838 cris-*-* | crisv32-*-*)
839 case "${target}" in
840 *-*-linux*)
841 ;;
842 *) # See PR46792 regarding target-libffi.
843 noconfigdirs="$noconfigdirs target-libffi";;
844 esac
845 ;;
846 hppa*64*-*-hpux*)
847 noconfigdirs="$noconfigdirs target-libffi"
848 ;;
849 hppa*-hp-hpux11*)
850 ;;
851 hppa*-*-hpux*)
852 noconfigdirs="$noconfigdirs target-libffi"
853 ;;
854 ia64*-*-*vms*)
855 noconfigdirs="$noconfigdirs target-libffi"
856 ;;
857 i[[3456789]]86-w64-mingw*)
858 noconfigdirs="$noconfigdirs target-libffi"
859 ;;
860 i[[3456789]]86-*-mingw*)
861 noconfigdirs="$noconfigdirs target-libffi"
862 ;;
863 x86_64-*-mingw*)
864 noconfigdirs="$noconfigdirs target-libffi"
865 ;;
866 mmix-*-*)
867 noconfigdirs="$noconfigdirs target-libffi"
868 ;;
869 powerpc-*-aix*)
870 ;;
871 rs6000-*-aix*)
872 ;;
873 ft32-*-*)
874 noconfigdirs="$noconfigdirs target-libffi"
875 ;;
876 *-*-lynxos*)
877 noconfigdirs="$noconfigdirs target-libffi"
878 ;;
879 esac
881 # Disable the go frontend on systems where it is known to not work. Please keep
882 # this in sync with contrib/config-list.mk.
883 case "${target}" in
884 *-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
885 unsupported_languages="$unsupported_languages go"
886 ;;
887 esac
889 # Only allow gdbserver on some systems.
890 if test -d ${srcdir}/gdbserver; then
891 if test x$enable_gdbserver = x; then
892 AC_MSG_CHECKING([for gdbserver support])
893 if (srcdir=${srcdir}/gdbserver; \
894 . ${srcdir}/configure.srv; \
895 test -n "$UNSUPPORTED")
896 then
897 AC_MSG_RESULT([no])
898 noconfigdirs="$noconfigdirs gdbserver"
899 else
900 AC_MSG_RESULT([yes])
901 fi
902 fi
903 fi
905 # Disable libgo for some systems where it is known to not work.
906 # For testing, you can easily override this with --enable-libgo.
907 if test x$enable_libgo = x; then
908 case "${target}" in
909 *-*-darwin*)
910 # PR 46986
911 noconfigdirs="$noconfigdirs target-libgo"
912 ;;
913 *-*-cygwin* | *-*-mingw*)
914 noconfigdirs="$noconfigdirs target-libgo"
915 ;;
916 bpf-*-*)
917 noconfigdirs="$noconfigdirs target-libgo"
918 ;;
919 esac
920 fi
922 # Default libgloss CPU subdirectory.
923 libgloss_dir="$target_cpu"
925 case "${target}" in
926 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
927 libgloss_dir=wince
928 ;;
929 aarch64*-*-* )
930 libgloss_dir=aarch64
931 ;;
932 arm*-*-*)
933 libgloss_dir=arm
934 ;;
935 cris-*-* | crisv32-*-*)
936 libgloss_dir=cris
937 ;;
938 hppa*-*-*)
939 libgloss_dir=pa
940 ;;
941 i[[3456789]]86-*-*)
942 libgloss_dir=i386
943 ;;
944 loongarch*-*-*)
945 libgloss_dir=loongarch
946 ;;
947 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
948 libgloss_dir=m68hc11
949 ;;
950 m68*-*-* | fido-*-*)
951 libgloss_dir=m68k
952 ;;
953 mips*-*-*)
954 libgloss_dir=mips
955 ;;
956 powerpc*-*-*)
957 libgloss_dir=rs6000
958 ;;
959 pru-*-*)
960 libgloss_dir=pru
961 ;;
962 sparc*-*-*)
963 libgloss_dir=sparc
964 ;;
965 esac
967 # Disable newlib and libgloss for various target OSes.
968 case "${target}" in
969 alpha*-dec-osf*)
970 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
971 ;;
972 i[[3456789]]86-*-linux*)
973 # This section makes it possible to build newlib natively on linux.
974 # If we are using a cross compiler then don't configure newlib.
975 if test x${is_cross_compiler} != xno ; then
976 noconfigdirs="$noconfigdirs target-newlib"
977 fi
978 noconfigdirs="$noconfigdirs target-libgloss"
979 # If we are not using a cross compiler, do configure newlib.
980 # Note however, that newlib will only be configured in this situation
981 # if the --with-newlib option has been given, because otherwise
982 # 'target-newlib' will appear in skipdirs.
983 ;;
984 i[[3456789]]86-*-rdos*)
985 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
986 ;;
987 sh*-*-pe|mips*-*-pe|arm-wince-pe)
988 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
989 ;;
990 sparc-*-sunos4*)
991 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
992 ;;
993 bpf-*-*)
994 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
995 ;;
996 *-*-aix*)
997 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
998 ;;
999 *-*-beos*)
1000 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1001 ;;
1002 *-*-chorusos)
1003 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1004 ;;
1005 *-*-dragonfly*)
1006 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1007 ;;
1008 *-*-freebsd*)
1009 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1010 ;;
1011 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
1012 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1013 ;;
1014 *-*-lynxos*)
1015 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1016 ;;
1017 *-*-mingw*)
1018 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1019 ;;
1020 *-*-netbsd*)
1021 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1022 ;;
1023 *-*-netware*)
1024 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1025 ;;
1026 *-*-tpf*)
1027 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1028 ;;
1029 *-*-uclinux*)
1030 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1031 ;;
1032 *-*-vxworks*)
1033 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1034 ;;
1035 esac
1037 case "${target}" in
1038 *-*-chorusos)
1039 ;;
1040 aarch64-*-darwin*)
1041 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1042 noconfigdirs="$noconfigdirs sim target-rda"
1043 ;;
1044 amdgcn*-*-*)
1045 ;;
1046 arm-*-darwin*)
1047 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1048 noconfigdirs="$noconfigdirs sim target-rda"
1049 ;;
1050 powerpc-*-darwin*)
1051 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1052 noconfigdirs="$noconfigdirs sim target-rda"
1053 ;;
1054 i[[3456789]]86-*-darwin*)
1055 noconfigdirs="$noconfigdirs ld gprof"
1056 noconfigdirs="$noconfigdirs sim target-rda"
1057 ;;
1058 x86_64-*-darwin[[912]]*)
1059 noconfigdirs="$noconfigdirs ld gas gprof"
1060 noconfigdirs="$noconfigdirs sim target-rda"
1061 ;;
1062 *-*-darwin*)
1063 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1064 noconfigdirs="$noconfigdirs sim target-rda"
1065 ;;
1066 *-*-dragonfly*)
1067 ;;
1068 *-*-freebsd*)
1069 if test "x$with_gmp" = x \
1070 && ! test -d ${srcdir}/gmp \
1071 && test -f /usr/local/include/gmp.h; then
1072 with_gmp=/usr/local
1073 fi
1074 ;;
1075 *-*-kaos*)
1076 # Remove unsupported stuff on all kaOS configurations.
1077 noconfigdirs="$noconfigdirs target-libgloss"
1078 ;;
1079 *-*-netbsd*)
1080 ;;
1081 *-*-netware*)
1082 ;;
1083 *-*-phoenix*)
1084 noconfigdirs="$noconfigdirs target-libgloss"
1085 ;;
1086 *-*-rtems*)
1087 noconfigdirs="$noconfigdirs target-libgloss"
1088 ;;
1089 # The tpf target doesn't support gdb yet.
1090 *-*-tpf*)
1091 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
1092 ;;
1093 *-*-uclinux*)
1094 noconfigdirs="$noconfigdirs target-rda"
1095 ;;
1096 *-*-vxworks*)
1097 ;;
1098 alpha*-dec-osf*)
1099 # ld works, but does not support shared libraries.
1100 # gas doesn't generate exception information.
1101 noconfigdirs="$noconfigdirs gas ld"
1102 ;;
1103 alpha*-*-*vms*)
1104 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1105 ;;
1106 alpha*-*-*)
1107 # newlib is not 64 bit ready
1108 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1109 ;;
1110 bpf-*-*)
1111 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1112 ;;
1113 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1114 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1115 ;;
1116 arc*-*-*)
1117 noconfigdirs="$noconfigdirs sim"
1118 ;;
1119 arm-*-pe*)
1120 noconfigdirs="$noconfigdirs target-libgloss"
1121 ;;
1122 arm-*-riscix*)
1123 noconfigdirs="$noconfigdirs ld target-libgloss"
1124 ;;
1125 avr-*-*)
1126 if test x${with_avrlibc} != xno; then
1127 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1128 fi
1129 ;;
1130 c4x-*-* | tic4x-*-*)
1131 noconfigdirs="$noconfigdirs target-libgloss"
1132 ;;
1133 tic54x-*-*)
1134 noconfigdirs="$noconfigdirs target-libgloss gdb"
1135 ;;
1136 d10v-*-*)
1137 noconfigdirs="$noconfigdirs target-libgloss"
1138 ;;
1139 d30v-*-*)
1140 noconfigdirs="$noconfigdirs gdb"
1141 ;;
1142 fr30-*-elf*)
1143 noconfigdirs="$noconfigdirs gdb"
1144 ;;
1145 ft32-*-*)
1146 noconfigdirs="$noconfigdirs target-rda gprof"
1147 ;;
1148 moxie-*-*)
1149 noconfigdirs="$noconfigdirs"
1150 ;;
1151 h8300*-*-*)
1152 noconfigdirs="$noconfigdirs target-libgloss"
1153 ;;
1154 h8500-*-*)
1155 noconfigdirs="$noconfigdirs target-libgloss"
1156 ;;
1157 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1158 ;;
1159 hppa*64*-*-hpux*)
1160 noconfigdirs="$noconfigdirs gdb"
1161 ;;
1162 hppa*-*-hpux11*)
1163 noconfigdirs="$noconfigdirs gdb ld"
1164 ;;
1165 hppa*64*-*-linux*)
1166 ;;
1167 hppa*-*-linux*)
1168 ;;
1169 hppa*-*-*elf* | \
1170 hppa*-*-lites* | \
1171 hppa*-*-openbsd* | \
1172 hppa*64*-*-*)
1173 ;;
1174 hppa*-*-pro*)
1175 ;;
1176 hppa*-*-*)
1177 noconfigdirs="$noconfigdirs ld"
1178 ;;
1179 i960-*-*)
1180 noconfigdirs="$noconfigdirs gdb"
1181 ;;
1182 ia64*-*-elf*)
1183 # No gdb support yet.
1184 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1185 ;;
1186 ia64*-**-hpux*)
1187 # No ld support yet.
1188 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1189 ;;
1190 ia64*-*-*vms*)
1191 # No ld support yet.
1192 noconfigdirs="$noconfigdirs libgui itcl ld"
1193 ;;
1194 i[[3456789]]86-w64-mingw*)
1195 ;;
1196 i[[3456789]]86-*-mingw*)
1197 target_configdirs="$target_configdirs target-winsup"
1198 ;;
1199 *-*-cygwin*)
1200 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1201 noconfigdirs="$noconfigdirs target-libgloss"
1202 # always build newlib if winsup directory is present.
1203 if test -d "$srcdir/winsup/cygwin"; then
1204 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1205 elif test -d "$srcdir/newlib"; then
1206 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1207 fi
1208 ;;
1209 i[[3456789]]86-*-pe)
1210 noconfigdirs="$noconfigdirs target-libgloss"
1211 ;;
1212 i[[3456789]]86-*-sco3.2v5*)
1213 # The linker does not yet know about weak symbols in COFF,
1214 # and is not configured to handle mixed ELF and COFF.
1215 noconfigdirs="$noconfigdirs ld target-libgloss"
1216 ;;
1217 i[[3456789]]86-*-sco*)
1218 noconfigdirs="$noconfigdirs gprof target-libgloss"
1219 ;;
1220 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1221 noconfigdirs="$noconfigdirs target-libgloss"
1222 ;;
1223 i[[3456789]]86-*-sysv4*)
1224 noconfigdirs="$noconfigdirs target-libgloss"
1225 ;;
1226 i[[3456789]]86-*-beos*)
1227 noconfigdirs="$noconfigdirs gdb"
1228 ;;
1229 i[[3456789]]86-*-rdos*)
1230 noconfigdirs="$noconfigdirs gdb"
1231 ;;
1232 mmix-*-*)
1233 noconfigdirs="$noconfigdirs gdb"
1234 ;;
1235 mt-*-*)
1236 noconfigdirs="$noconfigdirs sim"
1237 ;;
1238 nfp-*-*)
1239 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1240 noconfigdirs="$noconfigdirs $target_libraries"
1241 ;;
1242 pdp11-*-*)
1243 noconfigdirs="$noconfigdirs gdb gprof"
1244 ;;
1245 powerpc-*-aix*)
1246 # copied from rs6000-*-* entry
1247 noconfigdirs="$noconfigdirs gprof"
1248 ;;
1249 powerpc*-*-winnt* | powerpc*-*-pe*)
1250 target_configdirs="$target_configdirs target-winsup"
1251 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1252 # always build newlib.
1253 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1254 ;;
1255 # This is temporary until we can link against shared libraries
1256 powerpcle-*-solaris*)
1257 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1258 ;;
1259 powerpc-*-beos*)
1260 noconfigdirs="$noconfigdirs gdb"
1261 ;;
1262 rs6000-*-lynxos*)
1263 noconfigdirs="$noconfigdirs gprof"
1264 ;;
1265 rs6000-*-aix*)
1266 noconfigdirs="$noconfigdirs gprof"
1267 ;;
1268 rs6000-*-*)
1269 noconfigdirs="$noconfigdirs gprof"
1270 ;;
1271 m68k-apollo-*)
1272 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1273 ;;
1274 microblaze*)
1275 noconfigdirs="$noconfigdirs gprof"
1276 ;;
1277 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1278 if test x$with_newlib = xyes; then
1279 noconfigdirs="$noconfigdirs gprof"
1280 fi
1281 ;;
1282 mips*-*-irix5*)
1283 noconfigdirs="$noconfigdirs gprof target-libgloss"
1284 ;;
1285 mips*-*-irix6*)
1286 noconfigdirs="$noconfigdirs gprof target-libgloss"
1287 ;;
1288 mips*-*-bsd*)
1289 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1290 ;;
1291 mips*-*-linux*)
1292 ;;
1293 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1294 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1295 noconfigdirs="$noconfigdirs ld gas gprof"
1296 ;;
1297 mips*-*-*)
1298 noconfigdirs="$noconfigdirs gprof"
1299 ;;
1300 nvptx*-*-*)
1301 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1302 ;;
1303 sh-*-*)
1304 case "${target}" in
1305 sh*-*-elf)
1306 ;;
1307 *)
1308 noconfigdirs="$noconfigdirs target-libgloss" ;;
1309 esac
1310 ;;
1311 sparc-*-sunos4*)
1312 if test x${is_cross_compiler} = xno ; then
1313 use_gnu_ld=no
1314 fi
1315 ;;
1316 tic6x-*-*)
1317 noconfigdirs="$noconfigdirs sim"
1318 ;;
1319 tilepro*-*-* | tilegx*-*-*)
1320 noconfigdirs="$noconfigdirs sim"
1321 ;;
1322 v810-*-*)
1323 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1324 ;;
1325 vax-*-*)
1326 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1327 ;;
1328 wasm32-*-*)
1329 noconfigdirs="$noconfigdirs ld"
1330 ;;
1331 loongarch*-*-linux*)
1332 ;;
1333 loongarch*-*-*)
1334 noconfigdirs="$noconfigdirs gprof"
1335 ;;
1336 esac
1338 # If we aren't building newlib, then don't build libgloss, since libgloss
1339 # depends upon some newlib header files.
1340 case "${noconfigdirs}" in
1341 *target-libgloss*) ;;
1342 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1343 esac
1345 # Work in distributions that contain no compiler tools, like Autoconf.
1346 host_makefile_frag=/dev/null
1347 if test -d ${srcdir}/config ; then
1348 case "${host}" in
1349 i[[3456789]]86-*-msdosdjgpp*)
1350 host_makefile_frag="config/mh-djgpp"
1351 ;;
1352 *-cygwin*)
1353 ACX_CHECK_CYGWIN_CAT_WORKS
1354 host_makefile_frag="config/mh-cygwin"
1355 ;;
1356 *-mingw*)
1357 host_makefile_frag="config/mh-mingw"
1358 ;;
1359 alpha*-linux*)
1360 host_makefile_frag="config/mh-alpha-linux"
1361 ;;
1362 hppa*-hp-hpux10*)
1363 host_makefile_frag="config/mh-pa-hpux10"
1364 ;;
1365 hppa*-hp-hpux*)
1366 host_makefile_frag="config/mh-pa"
1367 ;;
1368 hppa*-*)
1369 host_makefile_frag="config/mh-pa"
1370 ;;
1371 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
1372 host_makefile_frag="config/mh-darwin"
1373 ;;
1374 powerpc-*-aix*)
1375 host_makefile_frag="config/mh-ppc-aix"
1376 ;;
1377 rs6000-*-aix*)
1378 host_makefile_frag="config/mh-ppc-aix"
1379 ;;
1380 esac
1381 fi
1383 if test "${build}" != "${host}" ; then
1384 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1385 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1386 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1387 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
1388 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1389 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
1390 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1391 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1392 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1393 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1394 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1395 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1396 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1397 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1398 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1399 else
1400 AR_FOR_BUILD="\$(AR)"
1401 AS_FOR_BUILD="\$(AS)"
1402 CC_FOR_BUILD="\$(CC)"
1403 CXX_FOR_BUILD="\$(CXX)"
1404 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
1405 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1406 GOC_FOR_BUILD="\$(GOC)"
1407 GDC_FOR_BUILD="\$(GDC)"
1408 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1409 LD_FOR_BUILD="\$(LD)"
1410 NM_FOR_BUILD="\$(NM)"
1411 RANLIB_FOR_BUILD="\$(RANLIB)"
1412 WINDRES_FOR_BUILD="\$(WINDRES)"
1413 WINDMC_FOR_BUILD="\$(WINDMC)"
1414 fi
1416 AC_PROG_CC_C99
1417 AC_PROG_CXX
1419 # We must set the default linker to the linker used by gcc for the correct
1420 # operation of libtool. If LD is not defined and we are using gcc, try to
1421 # set the LD default to the ld used by gcc.
1422 if test -z "$LD"; then
1423 if test "$GCC" = yes; then
1424 case $build in
1425 *-*-mingw*)
1426 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1427 *)
1428 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1429 esac
1430 case $gcc_prog_ld in
1431 # Accept absolute paths.
1432 [[\\/]* | [A-Za-z]:[\\/]*)]
1433 LD="$gcc_prog_ld" ;;
1434 esac
1435 fi
1436 fi
1438 # Check whether -static-libstdc++ -static-libgcc is supported.
1439 have_static_libs=no
1440 if test "$GCC" = yes; then
1441 saved_LDFLAGS="$LDFLAGS"
1443 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1444 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1445 AC_LANG_PUSH(C++)
1446 AC_LINK_IFELSE([AC_LANG_SOURCE([
1447 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1448 #error -static-libstdc++ not implemented
1449 #endif
1450 int main() {}])],
1451 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1452 [AC_MSG_RESULT([no])])
1453 AC_LANG_POP(C++)
1455 LDFLAGS="$saved_LDFLAGS"
1456 fi
1458 ACX_PROG_GNAT
1459 ACX_PROG_GDC
1460 ACX_PROG_CMP_IGNORE_INITIAL
1462 AC_ARG_ENABLE([bootstrap],
1463 [AS_HELP_STRING([--enable-bootstrap],
1464 [enable bootstrapping @<:@yes if native build@:>@])],,
1465 enable_bootstrap=default)
1467 # Issue errors and warnings for invalid/strange bootstrap combinations.
1468 if test -r $srcdir/gcc/configure; then
1469 have_compiler=yes
1470 else
1471 have_compiler=no
1472 fi
1474 case "$have_compiler:$host:$target:$enable_bootstrap" in
1475 *:*:*:no) ;;
1477 # Default behavior. Enable bootstrap if we have a compiler
1478 # and we are in a native configuration.
1479 yes:$build:$build:default)
1480 enable_bootstrap=yes ;;
1482 *:*:*:default)
1483 enable_bootstrap=no ;;
1485 # We have a compiler and we are in a native configuration, bootstrap is ok
1486 yes:$build:$build:yes)
1487 ;;
1489 # Other configurations, but we have a compiler. Assume the user knows
1490 # what he's doing.
1491 yes:*:*:yes)
1492 AC_MSG_WARN([trying to bootstrap a cross compiler])
1493 ;;
1495 # No compiler: if they passed --enable-bootstrap explicitly, fail
1496 no:*:*:yes)
1497 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1499 # Fail if wrong command line
1500 *)
1501 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1502 ;;
1503 esac
1505 # When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
1506 # C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1507 # require C++11 (or higher).
1508 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1509 CXX="$CXX -std=c++11"
1510 elif test "$have_compiler" = yes; then
1511 AX_CXX_COMPILE_STDCXX(11)
1513 if test "${build}" != "${host}"; then
1514 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1515 fi
1516 fi
1518 AC_ARG_ENABLE([pgo-build],
1519 [AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1520 [enable the PGO build])],
1521 [enable_pgo_build=$enableval],
1522 [enable_pgo_build=no])
1524 # Issue errors and warnings for invalid/strange PGO build combinations.
1525 case "$have_compiler:$host:$target:$enable_pgo_build" in
1526 *:*:*:no) ;;
1528 # Allow the PGO build only if we aren't building a compiler and
1529 # we are in a native configuration.
1530 no:$build:$build:yes | no:$build:$build:lto) ;;
1532 # Disallow the PGO bootstrap if we are building a compiler.
1533 yes:*:*:yes | yes:*:*:lto)
1534 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1536 *)
1537 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1538 ;;
1539 esac
1541 if test "$enable_pgo_build" != "no"; then
1542 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1543 old_CFLAGS="$CFLAGS"
1544 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1545 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1546 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1547 [PGO_BUILD_GEN_CFLAGS=])
1548 CFLAGS="$old_CFLAGS"
1549 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1550 AC_MSG_RESULT([yes])
1551 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1552 else
1553 AC_MSG_RESULT([no])
1554 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1555 fi
1557 if test "$enable_pgo_build" = "lto"; then
1558 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1559 old_CFLAGS="$CFLAGS"
1560 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1561 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1562 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1563 [PGO_BUILD_LTO_CFLAGS=])
1564 CFLAGS="$old_CFLAGS"
1565 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1566 AC_MSG_RESULT([yes])
1567 else
1568 AC_MSG_RESULT([no])
1569 AC_MSG_WARN([LTO is disabled for the PGO build])
1570 fi
1571 fi
1572 fi
1573 AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1574 AC_SUBST(PGO_BUILD_USE_CFLAGS)
1575 AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1577 # Used for setting $lt_cv_objdir
1578 _LT_CHECK_OBJDIR
1580 # Check for GMP, MPFR and MPC
1581 gmplibs="-lmpc -lmpfr -lgmp"
1582 gmpinc=
1583 have_gmp=no
1585 # Specify a location for mpc
1586 # check for this first so it ends up on the link line before mpfr.
1587 AC_ARG_WITH(mpc,
1588 [AS_HELP_STRING([--with-mpc=PATH],
1589 [specify prefix directory for installed MPC package.
1590 Equivalent to --with-mpc-include=PATH/include
1591 plus --with-mpc-lib=PATH/lib])])
1592 AC_ARG_WITH(mpc-include,
1593 [AS_HELP_STRING([--with-mpc-include=PATH],
1594 [specify directory for installed MPC include files])])
1595 AC_ARG_WITH(mpc-lib,
1596 [AS_HELP_STRING([--with-mpc-lib=PATH],
1597 [specify directory for the installed MPC library])])
1599 if test "x$with_mpc" != x; then
1600 gmplibs="-L$with_mpc/lib $gmplibs"
1601 gmpinc="-I$with_mpc/include $gmpinc"
1602 fi
1603 if test "x$with_mpc_include" != x; then
1604 gmpinc="-I$with_mpc_include $gmpinc"
1605 fi
1606 if test "x$with_mpc_lib" != x; then
1607 gmplibs="-L$with_mpc_lib $gmplibs"
1608 fi
1609 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1610 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1611 gmpinc='-I$$s/mpc/src '"$gmpinc"
1612 # Do not test the mpc version. Assume that it is sufficient, since
1613 # it is in the source tree, and the library has not been built yet
1614 # but it would be included on the link line in the version check below
1615 # hence making the test fail.
1616 have_gmp=yes
1617 fi
1619 # Specify a location for mpfr
1620 # check for this first so it ends up on the link line before gmp.
1621 AC_ARG_WITH(mpfr,
1622 [AS_HELP_STRING([--with-mpfr=PATH],
1623 [specify prefix directory for installed MPFR package.
1624 Equivalent to --with-mpfr-include=PATH/include
1625 plus --with-mpfr-lib=PATH/lib])])
1626 AC_ARG_WITH(mpfr-include,
1627 [AS_HELP_STRING([--with-mpfr-include=PATH],
1628 [specify directory for installed MPFR include files])])
1629 AC_ARG_WITH(mpfr-lib,
1630 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1631 [specify directory for the installed MPFR library])])
1633 if test "x$with_mpfr" != x; then
1634 gmplibs="-L$with_mpfr/lib $gmplibs"
1635 gmpinc="-I$with_mpfr/include $gmpinc"
1636 fi
1637 if test "x$with_mpfr_include" != x; then
1638 gmpinc="-I$with_mpfr_include $gmpinc"
1639 fi
1640 if test "x$with_mpfr_lib" != x; then
1641 gmplibs="-L$with_mpfr_lib $gmplibs"
1642 fi
1643 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1644 # MPFR v3.1.0 moved the sources into a src sub-directory.
1645 if ! test -d ${srcdir}/mpfr/src; then
1646 AC_MSG_ERROR([dnl
1647 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1648 fi
1649 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1650 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1651 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1652 # Do not test the mpfr version. Assume that it is sufficient, since
1653 # it is in the source tree, and the library has not been built yet
1654 # but it would be included on the link line in the version check below
1655 # hence making the test fail.
1656 have_gmp=yes
1657 fi
1659 # Specify a location for gmp
1660 AC_ARG_WITH(gmp,
1661 [AS_HELP_STRING([--with-gmp=PATH],
1662 [specify prefix directory for the installed GMP package.
1663 Equivalent to --with-gmp-include=PATH/include
1664 plus --with-gmp-lib=PATH/lib])])
1665 AC_ARG_WITH(gmp-include,
1666 [AS_HELP_STRING([--with-gmp-include=PATH],
1667 [specify directory for installed GMP include files])])
1668 AC_ARG_WITH(gmp-lib,
1669 [AS_HELP_STRING([--with-gmp-lib=PATH],
1670 [specify directory for the installed GMP library])])
1673 if test "x$with_gmp" != x; then
1674 gmplibs="-L$with_gmp/lib $gmplibs"
1675 gmpinc="-I$with_gmp/include $gmpinc"
1676 fi
1677 if test "x$with_gmp_include" != x; then
1678 gmpinc="-I$with_gmp_include $gmpinc"
1679 fi
1680 if test "x$with_gmp_lib" != x; then
1681 gmplibs="-L$with_gmp_lib $gmplibs"
1682 fi
1683 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1684 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1685 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1686 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1687 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1688 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1689 # Do not test the gmp version. Assume that it is sufficient, since
1690 # it is in the source tree, and the library has not been built yet
1691 # but it would be included on the link line in the version check below
1692 # hence making the test fail.
1693 have_gmp=yes
1694 fi
1696 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1697 have_gmp=yes
1698 saved_CFLAGS="$CFLAGS"
1699 CFLAGS="$CFLAGS $gmpinc"
1700 # Check for the recommended and required versions of GMP.
1701 AC_MSG_CHECKING([for the correct version of gmp.h])
1702 AC_TRY_COMPILE([#include "gmp.h"],[
1703 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1704 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1705 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1706 choke me
1707 #endif
1708 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1709 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1710 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1711 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1712 choke me
1713 #endif
1714 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1715 [AC_MSG_RESULT([no]); have_gmp=no])
1717 # If we have GMP, check the MPFR version.
1718 if test x"$have_gmp" = xyes; then
1719 # Check for the recommended and required versions of MPFR.
1720 AC_MSG_CHECKING([for the correct version of mpfr.h])
1721 AC_TRY_COMPILE([#include <gmp.h>
1722 #include <mpfr.h>],[
1723 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
1724 choke me
1725 #endif
1726 ], [AC_TRY_COMPILE([#include <gmp.h>
1727 #include <mpfr.h>],[
1728 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
1729 choke me
1730 #endif
1731 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1732 [AC_MSG_RESULT([no]); have_gmp=no])
1733 fi
1735 # Check for the MPC header version.
1736 if test x"$have_gmp" = xyes ; then
1737 # Check for the recommended and required versions of MPC.
1738 AC_MSG_CHECKING([for the correct version of mpc.h])
1739 AC_TRY_COMPILE([#include <mpc.h>],[
1740 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1741 choke me
1742 #endif
1743 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1744 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1745 choke me
1746 #endif
1747 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1748 [AC_MSG_RESULT([no]); have_gmp=no])
1749 fi
1751 # Now check the MPFR library.
1752 if test x"$have_gmp" = xyes; then
1753 saved_LIBS="$LIBS"
1754 LIBS="$LIBS $gmplibs"
1755 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1756 AC_TRY_LINK([#include <mpc.h>],[
1757 mpfr_t n;
1758 mpfr_t x;
1759 mpc_t c;
1760 int t;
1761 mpfr_init (n);
1762 mpfr_init (x);
1763 mpfr_atan2 (n, n, x, MPFR_RNDN);
1764 mpfr_erfc (n, x, MPFR_RNDN);
1765 mpfr_subnormalize (x, t, MPFR_RNDN);
1766 mpfr_clear(n);
1767 mpfr_clear(x);
1768 mpc_init2 (c, 53);
1769 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1770 mpc_cosh (c, c, MPC_RNDNN);
1771 mpc_pow (c, c, c, MPC_RNDNN);
1772 mpc_acosh (c, c, MPC_RNDNN);
1773 mpc_clear (c);
1774 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1775 LIBS="$saved_LIBS"
1776 fi
1778 CFLAGS="$saved_CFLAGS"
1780 # The library versions listed in the error message below should match
1781 # the HARD-minimums enforced above.
1782 if test x$have_gmp != xyes; then
1783 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
1784 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1785 their locations. Source code for these libraries can be found at
1786 their respective hosting sites as well as at
1787 https://gcc.gnu.org/pub/gcc/infrastructure/. See also
1788 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1789 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1790 make sure that you have installed both the libraries and the header
1791 files. They may be located in separate packages.])
1792 fi
1793 fi
1795 # Flags needed for both GMP, MPFR and/or MPC.
1796 AC_SUBST(gmplibs)
1797 AC_SUBST(gmpinc)
1798 AC_SUBST(extra_mpfr_configure_flags)
1799 AC_SUBST(extra_mpc_gmp_configure_flags)
1800 AC_SUBST(extra_mpc_mpfr_configure_flags)
1801 AC_SUBST(extra_isl_gmp_configure_flags)
1803 # Libraries to use for stage1 or when not bootstrapping.
1804 AC_ARG_WITH(stage1-libs,
1805 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1806 [if test "$withval" = "no" -o "$withval" = "yes"; then
1807 stage1_libs=
1808 else
1809 stage1_libs=$withval
1810 fi],
1811 [stage1_libs=])
1812 AC_SUBST(stage1_libs)
1814 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1815 # default is yes if gcc is being built; no otherwise. The reason for
1816 # this default is that gdb is sometimes linked against GNU Source
1817 # Highlight, which is a shared library that uses C++ exceptions. In
1818 # this case, -static-libstdc++ will cause crashes.
1819 AC_ARG_WITH(static-standard-libraries,
1820 [AS_HELP_STRING([--with-static-standard-libraries],
1821 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1822 [], [with_static_standard_libraries=auto])
1823 if test "$with_static_standard_libraries" = auto; then
1824 with_static_standard_libraries=$have_compiler
1825 fi
1827 # Linker flags to use for stage1 or when not bootstrapping.
1828 AC_ARG_WITH(stage1-ldflags,
1829 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1830 [if test "$withval" = "no" -o "$withval" = "yes"; then
1831 stage1_ldflags=
1832 else
1833 stage1_ldflags=$withval
1834 fi],
1835 [stage1_ldflags=
1836 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1837 # if supported. But if the user explicitly specified the libraries to use,
1838 # trust that they are doing what they want.
1839 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1840 -a "$have_static_libs" = yes; then
1841 stage1_ldflags="-static-libstdc++ -static-libgcc"
1842 fi])
1843 AC_SUBST(stage1_ldflags)
1845 # Libraries to use for stage2 and later builds.
1846 AC_ARG_WITH(boot-libs,
1847 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1848 [if test "$withval" = "no" -o "$withval" = "yes"; then
1849 poststage1_libs=
1850 else
1851 poststage1_libs=$withval
1852 fi],
1853 [poststage1_libs=])
1854 AC_SUBST(poststage1_libs)
1856 # Linker flags to use for stage2 and later builds.
1857 AC_ARG_WITH(boot-ldflags,
1858 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1859 [linker flags for stage2 and later])],
1860 [if test "$withval" = "no" -o "$withval" = "yes"; then
1861 poststage1_ldflags=
1862 else
1863 poststage1_ldflags=$withval
1864 fi],
1865 [poststage1_ldflags=
1866 # In stages 2 and 3, default to linking libstdc++ and libgcc
1867 # statically. But if the user explicitly specified the libraries to
1868 # use, trust that they are doing what they want.
1869 if test "$poststage1_libs" = ""; then
1870 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1871 fi])
1872 AC_SUBST(poststage1_ldflags)
1874 # GCC GRAPHITE dependency isl.
1875 # Basic setup is inlined here, actual checks are in config/isl.m4
1877 AC_ARG_WITH(isl,
1878 [AS_HELP_STRING(
1879 [--with-isl=PATH],
1880 [Specify prefix directory for the installed isl package.
1881 Equivalent to --with-isl-include=PATH/include
1882 plus --with-isl-lib=PATH/lib])])
1884 # Treat --without-isl as a request to disable
1885 # GRAPHITE support and skip all following checks.
1886 if test "x$with_isl" != "xno"; then
1887 # Check for isl
1888 dnl Provide configure switches and initialize islinc & isllibs
1889 dnl with user input.
1890 ISL_INIT_FLAGS
1891 dnl The versions of isl that work for Graphite
1892 ISL_CHECK_VERSION()
1893 dnl Only execute fail-action, if isl has been requested.
1894 ISL_IF_FAILED([
1895 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1896 fi
1898 # If the isl check failed, disable builds of in-tree variant of isl
1899 if test "x$with_isl" = xno ||
1900 test "x$gcc_cv_isl" = xno; then
1901 noconfigdirs="$noconfigdirs isl"
1902 islinc=
1903 fi
1905 AC_SUBST(isllibs)
1906 AC_SUBST(islinc)
1908 # Check for LTO support.
1909 AC_ARG_ENABLE(lto,
1910 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1911 enable_lto=$enableval,
1912 enable_lto=yes; default_enable_lto=yes)
1914 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1915 build_lto_plugin=yes
1916 ],[if test x"$default_enable_lto" = x"yes" ; then
1917 case $target in
1918 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1919 # On other non-ELF platforms, LTO has yet to be validated.
1920 *) enable_lto=no ;;
1921 esac
1922 else
1923 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1924 # It would also be nice to check the binutils support, but we don't
1925 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1926 # warn during gcc/ subconfigure; unless you're bootstrapping with
1927 # -flto it won't be needed until after installation anyway.
1928 case $target in
1929 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1930 *) if test x"$enable_lto" = x"yes"; then
1931 AC_MSG_ERROR([LTO support is not enabled for this target.])
1932 fi
1933 ;;
1934 esac
1935 fi
1936 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1937 # Build it unless LTO was explicitly disabled.
1938 case $target in
1939 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1940 *) ;;
1941 esac
1942 ])
1944 AC_ARG_ENABLE(linker-plugin-configure-flags,
1945 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1946 [additional flags for configuring linker plugins @<:@none@:>@])],
1947 extra_linker_plugin_configure_flags=$enableval,
1948 extra_linker_plugin_configure_flags=)
1949 AC_SUBST(extra_linker_plugin_configure_flags)
1950 AC_ARG_ENABLE(linker-plugin-flags,
1951 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1952 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1953 extra_linker_plugin_flags=$enableval,
1954 extra_linker_plugin_flags=)
1955 AC_SUBST(extra_linker_plugin_flags)
1957 # Enable --enable-host-shared.
1958 # Checked early to determine whether jit is an 'all' language
1959 AC_ARG_ENABLE(host-shared,
1960 [AS_HELP_STRING([--enable-host-shared],
1961 [build host code as shared libraries])],
1962 [host_shared=$enableval
1963 case $host in
1964 x86_64-*-darwin* | aarch64-*-darwin*)
1965 if test x$host_shared != xyes ; then
1966 # PIC is the default, and actually cannot be switched off.
1967 echo configure.ac: warning: PIC code is required for the configured target, host-shared setting ignored. 1>&2
1968 host_shared=yes
1969 fi ;;
1970 *) ;;
1971 esac],
1972 [case $host in
1973 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
1974 *) host_shared=no ;;
1975 esac])
1976 AC_SUBST(host_shared)
1978 # By default, C and C++ are the only stage 1 languages.
1979 stage1_languages=,c,
1981 # Target libraries that we bootstrap.
1982 bootstrap_target_libs=,target-libgcc,
1984 # Figure out what language subdirectories are present.
1985 # Look if the user specified --enable-languages="..."; if not, use
1986 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1987 # go away some day.
1988 # NB: embedded tabs in this IF block -- do not untabify
1989 if test -d ${srcdir}/gcc; then
1990 if test x"${enable_languages+set}" != xset; then
1991 if test x"${LANGUAGES+set}" = xset; then
1992 enable_languages="${LANGUAGES}"
1993 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1994 else
1995 enable_languages=default
1996 fi
1997 else
1998 if test x"${enable_languages}" = x ||
1999 test x"${enable_languages}" = xyes;
2000 then
2001 echo configure.ac: --enable-languages needs at least one language argument 1>&2
2002 exit 1
2003 fi
2004 fi
2005 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2007 # 'f95' is the old name for the 'fortran' language. We issue a warning
2008 # and make the substitution.
2009 case ,${enable_languages}, in
2010 *,f95,*)
2011 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
2012 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
2013 ;;
2014 esac
2016 # If bootstrapping, C++ must be enabled.
2017 case ",$enable_languages,:$enable_bootstrap" in
2018 *,c++,*:*) ;;
2019 *:yes)
2020 if test -f ${srcdir}/gcc/cp/config-lang.in; then
2021 enable_languages="${enable_languages},c++"
2022 else
2023 AC_MSG_ERROR([bootstrapping requires c++ sources])
2024 fi
2025 ;;
2026 esac
2028 # First scan to see if an enabled language requires some other language.
2029 # We assume that a given config-lang.in will list all the language
2030 # front ends it requires, even if some are required indirectly.
2031 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2032 case ${lang_frag} in
2033 ..) ;;
2034 # The odd quoting in the next line works around
2035 # an apparent bug in bash 1.12 on linux.
2036 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2037 *)
2038 # From the config-lang.in, get $language, $lang_requires, and
2039 # $lang_requires_boot_languages.
2040 language=
2041 lang_requires=
2042 lang_requires_boot_languages=
2043 # set srcdir during sourcing lang_frag to the gcc dir.
2044 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
2045 # polutes this shell
2046 saved_srcdir=${srcdir}
2047 srcdir=${srcdir}/gcc . ${lang_frag}
2048 srcdir=${saved_srcdir}
2049 for other in ${lang_requires} ${lang_requires_boot_languages}; do
2050 case ,${enable_languages}, in
2051 *,$other,*) ;;
2052 *,default,*) ;;
2053 *,all,*) ;;
2054 *,$language,*)
2055 echo " \`$other' language required by \`$language'; enabling" 1>&2
2056 enable_languages="${enable_languages},${other}"
2057 ;;
2058 esac
2059 done
2060 for other in ${lang_requires_boot_languages} ; do
2061 if test "$other" != "c"; then
2062 case ,${enable_stage1_languages}, in
2063 *,$other,*) ;;
2064 *,default,*) ;;
2065 *,all,*) ;;
2066 *)
2067 case ,${enable_languages}, in
2068 *,$language,*)
2069 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
2070 enable_stage1_languages="$enable_stage1_languages,${other}"
2071 ;;
2072 esac
2073 ;;
2074 esac
2075 fi
2076 done
2077 ;;
2078 esac
2079 done
2081 new_enable_languages=,c,
2083 # If LTO is enabled, add the LTO front end.
2084 if test "$enable_lto" = "yes" ; then
2085 case ,${enable_languages}, in
2086 *,lto,*) ;;
2087 *) enable_languages="${enable_languages},lto" ;;
2088 esac
2089 if test "${build_lto_plugin}" = "yes" ; then
2090 configdirs="$configdirs lto-plugin"
2091 fi
2092 fi
2094 # If we're building an offloading compiler, add the LTO front end.
2095 if test x"$enable_as_accelerator_for" != x ; then
2096 case ,${enable_languages}, in
2097 *,lto,*) ;;
2098 *) enable_languages="${enable_languages},lto" ;;
2099 esac
2100 fi
2102 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
2103 potential_languages=,c,
2105 enabled_target_libs=
2106 disabled_target_libs=
2108 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2109 case ${lang_frag} in
2110 ..) ;;
2111 # The odd quoting in the next line works around
2112 # an apparent bug in bash 1.12 on linux.
2113 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2114 *)
2115 # From the config-lang.in, get $language, $target_libs,
2116 # $lang_dirs, $boot_language, and $build_by_default
2117 language=
2118 target_libs=
2119 lang_dirs=
2120 subdir_requires=
2121 boot_language=no
2122 build_by_default=yes
2123 # set srcdir during sourcing. See above about save & restore
2124 saved_srcdir=${srcdir}
2125 srcdir=${srcdir}/gcc . ${lang_frag}
2126 srcdir=${saved_srcdir}
2127 if test x${language} = x; then
2128 echo "${lang_frag} doesn't set \$language." 1>&2
2129 exit 1
2130 fi
2132 if test "$language" = "c++"; then
2133 boot_language=yes
2134 fi
2136 add_this_lang=no
2137 # C is always enabled, so no need to add it again
2138 if test "$language" != "c"; then
2139 case ,${enable_languages}, in
2140 *,${language},*)
2141 # Language was explicitly selected; include it
2142 add_this_lang=yes
2143 ;;
2144 *,all,*)
2145 # All languages are enabled
2146 add_this_lang=all
2147 ;;
2148 *,default,*)
2149 # 'default' was selected, select it if it is a default language
2150 add_this_lang=${build_by_default}
2151 ;;
2152 esac
2153 fi
2155 # Disable languages that need other directories if these aren't available.
2156 for i in $subdir_requires; do
2157 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2158 case ${add_this_lang} in
2159 yes)
2160 # Specifically requested language; tell them.
2161 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2162 ;;
2163 all)
2164 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2165 add_this_lang=unsupported
2166 ;;
2167 *)
2168 # Silently disable.
2169 add_this_lang=unsupported
2170 ;;
2171 esac
2172 done
2174 # Disable Ada if no preexisting GNAT is available.
2175 case ${add_this_lang}:${language}:${have_gnat} in
2176 yes:ada:no)
2177 # Specifically requested language; tell them.
2178 AC_MSG_ERROR([GNAT is required to build $language])
2179 ;;
2180 all:ada:no)
2181 AC_MSG_WARN([GNAT is required to build $language])
2182 add_this_lang=unsupported
2183 ;;
2184 *:ada:no)
2185 # Silently disable.
2186 add_this_lang=unsupported
2187 ;;
2188 esac
2190 # Disable D if no preexisting GDC is available.
2191 case ${add_this_lang}:${language}:${have_gdc} in
2192 yes:d:no)
2193 # Specifically requested language; tell them.
2194 AC_MSG_ERROR([GDC is required to build $language])
2195 ;;
2196 all:d:no)
2197 AC_MSG_WARN([GDC is required to build $language])
2198 add_this_lang=unsupported
2199 ;;
2200 *:d:no)
2201 # Silently disable.
2202 add_this_lang=unsupported
2203 ;;
2204 esac
2206 # Disable jit if -enable-host-shared not specified
2207 # but not if building for Mingw. All code in Windows
2208 # is position independent code (PIC).
2209 case $target in
2210 *mingw*) ;;
2211 *)
2212 case ${add_this_lang}:${language}:${host_shared} in
2213 yes:jit:no)
2214 # PR jit/64780: explicitly specify --enable-host-shared
2215 AC_MSG_ERROR([
2216 Enabling language "jit" requires --enable-host-shared.
2218 --enable-host-shared typically slows the rest of the compiler down by
2219 a few %, so you must explicitly enable it.
2221 If you want to build both the jit and the regular compiler, it is often
2222 best to do this via two separate configure/builds, in separate
2223 directories, to avoid imposing the performance cost of
2224 --enable-host-shared on the regular compiler.])
2225 ;;
2226 all:jit:no)
2227 AC_MSG_WARN([--enable-host-shared required to build $language])
2228 add_this_lang=unsupported
2229 ;;
2230 *:jit:no)
2231 # Silently disable.
2232 add_this_lang=unsupported
2233 ;;
2234 esac
2235 ;;
2236 esac
2238 # Disable a language that is unsupported by the target.
2239 case "${add_this_lang}: $unsupported_languages " in
2240 no:*) ;;
2241 unsupported:*) ;;
2242 *:*" $language "*)
2243 AC_MSG_WARN([${language} not supported for this target])
2244 add_this_lang=unsupported
2245 ;;
2246 esac
2248 case $add_this_lang in
2249 unsupported)
2250 # Remove language-dependent dirs.
2251 disabled_target_libs="$disabled_target_libs $target_libs"
2252 noconfigdirs="$noconfigdirs $lang_dirs"
2253 ;;
2254 no)
2255 # Remove language-dependent dirs; still show language as supported.
2256 disabled_target_libs="$disabled_target_libs $target_libs"
2257 noconfigdirs="$noconfigdirs $lang_dirs"
2258 potential_languages="${potential_languages}${language},"
2259 ;;
2260 all|yes)
2261 new_enable_languages="${new_enable_languages}${language},"
2262 potential_languages="${potential_languages}${language},"
2263 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2264 enabled_target_libs="$enabled_target_libs $target_libs"
2265 case "${boot_language}:,$enable_stage1_languages," in
2266 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2267 # Add to (comma-separated) list of stage 1 languages.
2268 case ",$stage1_languages," in
2269 *,$language,* | ,yes, | ,all,) ;;
2270 *) stage1_languages="${stage1_languages}${language}," ;;
2271 esac
2272 # We need to bootstrap any supporting libraries.
2273 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2274 ;;
2275 esac
2276 ;;
2277 esac
2278 ;;
2279 esac
2280 done
2282 # Add target libraries which are only needed for disabled languages
2283 # to noconfigdirs.
2284 if test -n "$disabled_target_libs"; then
2285 for dir in $disabled_target_libs; do
2286 case " $enabled_target_libs " in
2287 *" ${dir} "*) ;;
2288 *) noconfigdirs="$noconfigdirs $dir" ;;
2289 esac
2290 done
2291 fi
2293 AC_ARG_ENABLE(stage1-languages,
2294 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2295 [choose additional languages to build during
2296 stage1. Mostly useful for compiler development])],
2297 [case ,${enable_stage1_languages}, in
2298 ,no,|,,)
2299 # Set it to something that will have no effect in the loop below
2300 enable_stage1_languages=c ;;
2301 ,yes,)
2302 enable_stage1_languages=`echo $new_enable_languages | \
2303 sed -e "s/^,//" -e "s/,$//" ` ;;
2304 *,all,*)
2305 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2306 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2307 esac
2309 # Add "good" languages from enable_stage1_languages to stage1_languages,
2310 # while "bad" languages go in missing_languages. Leave no duplicates.
2311 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2312 case $potential_languages in
2313 *,$i,*)
2314 case $stage1_languages in
2315 *,$i,*) ;;
2316 *) stage1_languages="$stage1_languages$i," ;;
2317 esac ;;
2318 *)
2319 case $missing_languages in
2320 *,$i,*) ;;
2321 *) missing_languages="$missing_languages$i," ;;
2322 esac ;;
2323 esac
2324 done])
2326 # Remove leading/trailing commas that were added for simplicity
2327 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2328 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2329 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2330 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2332 if test "x$missing_languages" != x; then
2333 AC_MSG_ERROR([
2334 The following requested languages could not be built: ${missing_languages}
2335 Supported languages are: ${potential_languages}])
2336 fi
2337 if test "x$new_enable_languages" != "x$enable_languages"; then
2338 echo The following languages will be built: ${new_enable_languages}
2339 enable_languages="$new_enable_languages"
2340 fi
2342 AC_SUBST(stage1_languages)
2343 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2344 fi
2346 # Handle --disable-<component> generically.
2347 for dir in $configdirs $build_configdirs $target_configdirs ; do
2348 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2349 varname=`echo $dirname | sed -e s/+/_/g`
2350 if eval test x\${enable_${varname}} "=" xno ; then
2351 noconfigdirs="$noconfigdirs $dir"
2352 fi
2353 done
2355 # Check for Boehm's garbage collector
2356 AC_ARG_ENABLE(objc-gc,
2357 [AS_HELP_STRING([--enable-objc-gc],
2358 [enable use of Boehm's garbage collector with the
2359 GNU Objective-C runtime])])
2360 AC_ARG_WITH([target-bdw-gc],
2361 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2362 [specify prefix directory for installed bdw-gc package.
2363 Equivalent to --with-target-bdw-gc-include=PATH/include
2364 plus --with-target-bdw-gc-lib=PATH/lib])])
2365 AC_ARG_WITH([target-bdw-gc-include],
2366 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2367 [specify directories for installed bdw-gc include files])])
2368 AC_ARG_WITH([target-bdw-gc-lib],
2369 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2370 [specify directories for installed bdw-gc library])])
2372 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2373 AC_MSG_CHECKING([for bdw garbage collector])
2374 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2375 dnl no bdw-gw options, assume default locations
2376 AC_MSG_RESULT([using bdw-gc in default locations])
2377 else
2378 dnl bdw-gw options, first error checking, complete checking in libobjc
2379 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2380 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2381 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2382 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2383 else
2384 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2385 fi
2386 fi
2387 esac
2389 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2390 case ,${enable_languages}, in
2391 *,c++,*)
2392 # Disable libitm, libsanitizer if we're not building libstdc++
2393 case "${noconfigdirs}" in
2394 *target-libstdc++-v3*)
2395 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2396 ;;
2397 *) ;;
2398 esac
2399 ;;
2400 *)
2401 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2402 ;;
2403 esac
2405 # If gcc/ is not in the source tree then we'll not be building a
2406 # target compiler, assume in that case we don't want to build any
2407 # target libraries or tools.
2408 #
2409 # This was added primarily for the benefit for binutils-gdb who reuse
2410 # this configure script, but don't always have target tools available.
2411 if test ! -d ${srcdir}/gcc; then
2412 skipdirs="${skipdirs} ${target_configdirs}"
2413 fi
2415 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2416 # $build_configdirs and $target_configdirs.
2417 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2419 notsupp=""
2420 for dir in . $skipdirs $noconfigdirs ; do
2421 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2422 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2423 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2424 if test -r $srcdir/$dirname/configure ; then
2425 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2426 true
2427 else
2428 notsupp="$notsupp $dir"
2429 fi
2430 fi
2431 fi
2432 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2433 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2434 if test -r $srcdir/$dirname/configure ; then
2435 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2436 true
2437 else
2438 notsupp="$notsupp $dir"
2439 fi
2440 fi
2441 fi
2442 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2443 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2444 if test -r $srcdir/$dirname/configure ; then
2445 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2446 true
2447 else
2448 notsupp="$notsupp $dir"
2449 fi
2450 fi
2451 fi
2452 done
2454 # Quietly strip out all directories which aren't configurable in this tree.
2455 # This relies on all configurable subdirectories being autoconfiscated, which
2456 # is now the case.
2457 build_configdirs_all="$build_configdirs"
2458 build_configdirs=
2459 for i in ${build_configdirs_all} ; do
2460 j=`echo $i | sed -e s/build-//g`
2461 if test -f ${srcdir}/$j/configure ; then
2462 build_configdirs="${build_configdirs} $i"
2463 fi
2464 done
2466 configdirs_all="$configdirs"
2467 configdirs=
2468 for i in ${configdirs_all} ; do
2469 if test -f ${srcdir}/$i/configure ; then
2470 configdirs="${configdirs} $i"
2471 fi
2472 done
2474 target_configdirs_all="$target_configdirs"
2475 target_configdirs=
2476 for i in ${target_configdirs_all} ; do
2477 j=`echo $i | sed -e s/target-//g`
2478 if test -f ${srcdir}/$j/configure ; then
2479 target_configdirs="${target_configdirs} $i"
2480 fi
2481 done
2483 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2484 # so we have to add it after the preceding checks.
2485 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2486 then
2487 case " $configdirs " in
2488 *" libiberty "*)
2489 # If we can build libiberty, we can also build libiberty-linker-plugin.
2490 configdirs="$configdirs libiberty-linker-plugin"
2491 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2492 --with-libiberty=../libiberty-linker-plugin";;
2493 *)
2494 AC_MSG_ERROR([libiberty missing]);;
2495 esac
2496 fi
2498 # Sometimes we have special requirements for the host libiberty.
2499 extra_host_libiberty_configure_flags=
2500 case " $configdirs " in
2501 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
2502 # When these are to be built as shared libraries, the same applies to
2503 # libiberty.
2504 extra_host_libiberty_configure_flags=--enable-shared
2505 ;;
2506 esac
2507 AC_SUBST(extra_host_libiberty_configure_flags)
2509 # Sometimes we have special requirements for the host zlib.
2510 extra_host_zlib_configure_flags=
2511 case " $configdirs " in
2512 *" bfd "*)
2513 # When bfd is to be built as a shared library, the same applies to
2514 # zlib.
2515 if test "$enable_shared" = "yes"; then
2516 extra_host_zlib_configure_flags=--enable-host-shared
2517 fi
2518 ;;
2519 esac
2520 AC_SUBST(extra_host_zlib_configure_flags)
2522 # Produce a warning message for the subdirs we can't configure.
2523 # This isn't especially interesting in the Cygnus tree, but in the individual
2524 # FSF releases, it's important to let people know when their machine isn't
2525 # supported by the one or two programs in a package.
2527 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2528 # If $appdirs is non-empty, at least one of those directories must still
2529 # be configured, or we error out. (E.g., if the gas release supports a
2530 # specified target in some subdirs but not the gas subdir, we shouldn't
2531 # pretend that all is well.)
2532 if test -n "$appdirs" ; then
2533 for dir in $appdirs ; do
2534 if test -r $dir/Makefile.in ; then
2535 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2536 appdirs=""
2537 break
2538 fi
2539 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2540 appdirs=""
2541 break
2542 fi
2543 fi
2544 done
2545 if test -n "$appdirs" ; then
2546 echo "*** This configuration is not supported by this package." 1>&2
2547 exit 1
2548 fi
2549 fi
2550 # Okay, some application will build, or we don't care to check. Still
2551 # notify of subdirs not getting built.
2552 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2553 echo " ${notsupp}" 1>&2
2554 echo " (Any other directories should still work fine.)" 1>&2
2555 fi
2557 case "$host" in
2558 *msdosdjgpp*)
2559 enable_gdbtk=no ;;
2560 esac
2562 # To find our prefix, in gcc_cv_tool_prefix.
2563 ACX_TOOL_DIRS
2565 copy_dirs=
2567 AC_ARG_WITH([build-sysroot],
2568 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2569 [use sysroot as the system root during the build])],
2570 [if test x"$withval" != x ; then
2571 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2572 fi],
2573 [SYSROOT_CFLAGS_FOR_TARGET=])
2574 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2576 AC_ARG_WITH([debug-prefix-map],
2577 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2578 [map A to B, C to D ... in debug information])],
2579 [if test x"$withval" != x; then
2580 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2581 for debug_map in $withval; do
2582 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2583 done
2584 fi],
2585 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2586 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2588 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2589 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2590 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2591 # We want to ensure that TARGET libraries (which we know are built with
2592 # gcc) are built with "-O2 -g", so include those options when setting
2593 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2594 if test "x$CFLAGS_FOR_TARGET" = x; then
2595 if test "x${is_cross_compiler}" = xyes; then
2596 CFLAGS_FOR_TARGET="-g -O2"
2597 else
2598 CFLAGS_FOR_TARGET=$CFLAGS
2599 case " $CFLAGS " in
2600 *" -O2 "*) ;;
2601 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2602 esac
2603 case " $CFLAGS " in
2604 *" -g "* | *" -g3 "*) ;;
2605 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2606 esac
2607 fi
2608 fi
2609 AC_SUBST(CFLAGS_FOR_TARGET)
2611 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2612 if test "x${is_cross_compiler}" = xyes; then
2613 CXXFLAGS_FOR_TARGET="-g -O2"
2614 else
2615 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2616 case " $CXXFLAGS " in
2617 *" -O2 "*) ;;
2618 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2619 esac
2620 case " $CXXFLAGS " in
2621 *" -g "* | *" -g3 "*) ;;
2622 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2623 esac
2624 fi
2625 fi
2626 AC_SUBST(CXXFLAGS_FOR_TARGET)
2628 AC_SUBST(LDFLAGS_FOR_TARGET)
2630 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2631 # the named directory are copied to $(tooldir)/sys-include.
2632 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2633 if test x${is_cross_compiler} = xno ; then
2634 echo 1>&2 '***' --with-headers is only supported when cross compiling
2635 exit 1
2636 fi
2637 if test x"${with_headers}" != xyes ; then
2638 x=${gcc_cv_tool_prefix}
2639 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2640 fi
2641 fi
2643 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2644 # the name directories are copied to $(tooldir)/lib. Multiple directories
2645 # are permitted.
2646 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2647 if test x${is_cross_compiler} = xno ; then
2648 echo 1>&2 '***' --with-libs is only supported when cross compiling
2649 exit 1
2650 fi
2651 if test x"${with_libs}" != xyes ; then
2652 # Copy the libraries in reverse order, so that files in the first named
2653 # library override files in subsequent libraries.
2654 x=${gcc_cv_tool_prefix}
2655 for l in ${with_libs}; do
2656 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2657 done
2658 fi
2659 fi
2661 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2662 #
2663 # This is done by determining whether or not the appropriate directory
2664 # is available, and by checking whether or not specific configurations
2665 # have requested that this magic not happen.
2666 #
2667 # The command line options always override the explicit settings in
2668 # configure.ac, and the settings in configure.ac override this magic.
2669 #
2670 # If the default for a toolchain is to use GNU as and ld, and you don't
2671 # want to do that, then you should use the --without-gnu-as and
2672 # --without-gnu-ld options for the configure script. Similarly, if
2673 # the default is to use the included zlib and you don't want to do that,
2674 # you should use the --with-system-zlib option for the configure script.
2676 if test x${use_gnu_as} = x &&
2677 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2678 with_gnu_as=yes
2679 extra_host_args="$extra_host_args --with-gnu-as"
2680 fi
2682 if test x${use_gnu_ld} = x &&
2683 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2684 with_gnu_ld=yes
2685 extra_host_args="$extra_host_args --with-gnu-ld"
2686 fi
2688 if test x${use_included_zlib} = x &&
2689 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2690 :
2691 else
2692 with_system_zlib=yes
2693 extra_host_args="$extra_host_args --with-system-zlib"
2694 fi
2696 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2697 # can detect this case.
2699 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2700 with_newlib=yes
2701 extra_host_args="$extra_host_args --with-newlib"
2702 fi
2704 # Handle ${copy_dirs}
2705 set fnord ${copy_dirs}
2706 shift
2707 while test $# != 0 ; do
2708 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2709 :
2710 else
2711 echo Copying $1 to $2
2713 # Use the install script to create the directory and all required
2714 # parent directories.
2715 if test -d $2 ; then
2716 :
2717 else
2718 echo >config.temp
2719 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2720 fi
2722 # Copy the directory, assuming we have tar.
2723 # FIXME: Should we use B in the second tar? Not all systems support it.
2724 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2726 # It is the responsibility of the user to correctly adjust all
2727 # symlinks. If somebody can figure out how to handle them correctly
2728 # here, feel free to add the code.
2730 echo $1 > $2/COPIED
2731 fi
2732 shift; shift
2733 done
2735 # Determine a target-dependent exec_prefix that the installed
2736 # gcc will search in. Keep this list sorted by triplet, with
2737 # the *-*-osname triplets last.
2738 md_exec_prefix=
2739 case "${target}" in
2740 i[[34567]]86-pc-msdosdjgpp*)
2741 md_exec_prefix=/dev/env/DJDIR/bin
2742 ;;
2743 *-*-hpux* | \
2744 *-*-nto-qnx* | \
2745 *-*-solaris2*)
2746 md_exec_prefix=/usr/ccs/bin
2747 ;;
2748 esac
2750 extra_arflags_for_target=
2751 extra_nmflags_for_target=
2752 extra_ranlibflags_for_target=
2753 target_makefile_frag=/dev/null
2754 case "${target}" in
2755 spu-*-*)
2756 target_makefile_frag="config/mt-spu"
2757 ;;
2758 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2759 target_makefile_frag="config/mt-sde"
2760 ;;
2761 mipsisa*-*-elfoabi*)
2762 target_makefile_frag="config/mt-mips-elfoabi"
2763 ;;
2764 mips*-*-*linux* | mips*-*-gnu*)
2765 target_makefile_frag="config/mt-mips-gnu"
2766 ;;
2767 nios2-*-elf*)
2768 target_makefile_frag="config/mt-nios2-elf"
2769 ;;
2770 *-*-linux-android*)
2771 target_makefile_frag="config/mt-android"
2772 ;;
2773 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2774 target_makefile_frag="config/mt-gnu"
2775 ;;
2776 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2777 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2778 # commands to handle both 32-bit and 64-bit objects. These flags are
2779 # harmless if we're using GNU nm or ar.
2780 extra_arflags_for_target=" -X32_64"
2781 extra_nmflags_for_target=" -B -X32_64"
2782 ;;
2783 esac
2785 alphaieee_frag=/dev/null
2786 case $target in
2787 alpha*-*-*)
2788 # This just makes sure to use the -mieee option to build target libs.
2789 # This should probably be set individually by each library.
2790 alphaieee_frag="config/mt-alphaieee"
2791 ;;
2792 esac
2794 # If --enable-target-optspace always use -Os instead of -O2 to build
2795 # the target libraries, similarly if it is not specified, use -Os
2796 # on selected platforms.
2797 ospace_frag=/dev/null
2798 case "${enable_target_optspace}:${target}" in
2799 yes:*)
2800 ospace_frag="config/mt-ospace"
2801 ;;
2802 :d30v-*)
2803 ospace_frag="config/mt-d30v"
2804 ;;
2805 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2806 ospace_frag="config/mt-ospace"
2807 ;;
2808 no:* | :*)
2809 ;;
2810 *)
2811 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2812 ;;
2813 esac
2815 # Some systems (e.g., one of the i386-aix systems the gas testers are
2816 # using) don't handle "\$" correctly, so don't use it here.
2817 tooldir='${exec_prefix}'/${target_noncanonical}
2818 build_tooldir=${tooldir}
2820 # Create a .gdbinit file which runs the one in srcdir
2821 # and tells GDB to look there for source files.
2823 if test -r ${srcdir}/.gdbinit ; then
2824 case ${srcdir} in
2825 .) ;;
2826 *) cat > ./.gdbinit <<EOF
2827 # ${NO_EDIT}
2828 dir ${srcdir}
2829 dir .
2830 source ${srcdir}/.gdbinit
2831 EOF
2832 ;;
2833 esac
2834 fi
2836 # Make sure that the compiler is able to generate an executable. If it
2837 # can't, we are probably in trouble. We don't care whether we can run the
2838 # executable--we might be using a cross compiler--we only care whether it
2839 # can be created. At this point the main configure script has set CC.
2840 we_are_ok=no
2841 echo "int main () { return 0; }" > conftest.c
2842 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2843 if test $? = 0 ; then
2844 if test -s conftest || test -s conftest.exe ; then
2845 we_are_ok=yes
2846 fi
2847 fi
2848 case $we_are_ok in
2849 no)
2850 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2851 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2852 rm -f conftest*
2853 exit 1
2854 ;;
2855 esac
2856 rm -f conftest*
2858 # Decide which environment variable is used to find dynamic libraries.
2859 case "${host}" in
2860 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2861 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2862 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2863 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2864 esac
2866 # On systems where the dynamic library environment variable is PATH,
2867 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2868 # built executables to PATH.
2869 if test "$RPATH_ENVVAR" = PATH; then
2870 GCC_SHLIB_SUBDIR=/shlib
2871 else
2872 GCC_SHLIB_SUBDIR=
2873 fi
2875 # Adjust the toplevel makefile according to whether bootstrap was selected.
2876 case $enable_bootstrap in
2877 yes)
2878 bootstrap_suffix=bootstrap
2879 BUILD_CONFIG=bootstrap-debug
2880 ;;
2881 no)
2882 bootstrap_suffix=no-bootstrap
2883 BUILD_CONFIG=
2884 ;;
2885 esac
2887 AC_MSG_CHECKING(for default BUILD_CONFIG)
2889 AC_ARG_WITH([build-config],
2890 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2891 [use config/NAME.mk build configuration])],
2892 [case $with_build_config in
2893 yes) with_build_config= ;;
2894 no) with_build_config= BUILD_CONFIG= ;;
2895 esac])
2897 if test "x${with_build_config}" != x; then
2898 BUILD_CONFIG=$with_build_config
2899 else
2900 case $BUILD_CONFIG in
2901 bootstrap-debug)
2902 if echo "int f (void) { return 0; }" > conftest.c &&
2903 ${CC} -c conftest.c &&
2904 mv conftest.o conftest.o.g0 &&
2905 ${CC} -c -g conftest.c &&
2906 mv conftest.o conftest.o.g &&
2907 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2908 :
2909 else
2910 BUILD_CONFIG=
2911 fi
2912 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2913 ;;
2914 esac
2915 fi
2916 AC_MSG_RESULT($BUILD_CONFIG)
2917 AC_SUBST(BUILD_CONFIG)
2919 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2920 AC_MSG_CHECKING([for --enable-vtable-verify])
2921 AC_ARG_ENABLE(vtable-verify,
2922 [AS_HELP_STRING([--enable-vtable-verify],
2923 [Enable vtable verification feature])],
2924 [case "$enableval" in
2925 yes) enable_vtable_verify=yes ;;
2926 no) enable_vtable_verify=no ;;
2927 *) enable_vtable_verify=no;;
2928 esac],
2929 [enable_vtable_verify=no])
2930 AC_MSG_RESULT($enable_vtable_verify)
2932 # Record target_configdirs and the configure arguments for target and
2933 # build configuration in Makefile.
2934 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2935 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2936 bootstrap_fixincludes=no
2938 # If we are building libgomp, bootstrap it.
2939 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2940 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2941 fi
2943 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2944 # or bootstrap-ubsan, bootstrap it.
2945 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2946 case "$BUILD_CONFIG" in
2947 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
2948 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2949 bootstrap_fixincludes=yes
2950 ;;
2951 esac
2952 fi
2954 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2955 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2956 test "$enable_vtable_verify" != no; then
2957 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2958 fi
2960 # If we are building libatomic and the list of enabled languages includes the
2961 # D frontend, bootstrap it.
2962 if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
2963 case ,${enable_languages}, in
2964 *,d,*)
2965 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
2966 ;;
2967 esac
2968 fi
2970 # Determine whether gdb needs tk/tcl or not.
2971 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2972 # and in that case we want gdb to be built without tk. Ugh!
2973 # In fact I believe gdb is the *only* package directly dependent on tk,
2974 # so we should be able to put the 'maybe's in unconditionally and
2975 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2976 # 100% sure that that's safe though.
2978 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2979 case "$enable_gdbtk" in
2980 no)
2981 GDB_TK="" ;;
2982 yes)
2983 GDB_TK="${gdb_tk}" ;;
2984 *)
2985 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2986 # distro. Eventually someone will fix this and move Insight, nee
2987 # gdbtk to a separate directory.
2988 if test -d ${srcdir}/gdb/gdbtk ; then
2989 GDB_TK="${gdb_tk}"
2990 else
2991 GDB_TK=""
2992 fi
2993 ;;
2994 esac
2995 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2996 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2998 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
2999 # else does, only include them if one of these is built. The Makefile
3000 # provides the ordering, so it's enough here to add to the list.
3001 case " ${configdirs} " in
3002 *\ gdb\ *)
3003 configdirs="${configdirs} gnulib gdbsupport"
3004 ;;
3005 *\ gdbserver\ *)
3006 configdirs="${configdirs} gnulib gdbsupport"
3007 ;;
3008 *\ sim\ *)
3009 configdirs="${configdirs} gnulib"
3010 ;;
3011 esac
3013 # Strip out unwanted targets.
3015 # While at that, we remove Makefiles if we were started for recursive
3016 # configuration, so that the top-level Makefile reconfigures them,
3017 # like we used to do when configure itself was recursive.
3019 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
3020 # but now we're fixing up the Makefile ourselves with the additional
3021 # commands passed to AC_CONFIG_FILES. Use separate variables
3022 # extrasub-{build,host,target} not because there is any reason to split
3023 # the substitutions up that way, but only to remain below the limit of
3024 # 99 commands in a script, for HP-UX sed.
3026 # Do not nest @if/@endif or @unless/@endunless pairs, because
3027 # configure will not warn you at all.
3029 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
3030 yes:yes:*\ gold\ *:*,c++,*) ;;
3031 yes:yes:*\ gold\ *:*)
3032 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
3033 ;;
3034 esac
3036 extrasub_build=
3037 for module in ${build_configdirs} ; do
3038 if test -z "${no_recursion}" \
3039 && test -f ${build_subdir}/${module}/Makefile; then
3040 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
3041 rm -f ${build_subdir}/${module}/Makefile
3042 fi
3043 extrasub_build="$extrasub_build
3044 /^@if build-$module\$/d
3045 /^@endif build-$module\$/d
3046 /^@unless build-$module\$/,/^@endunless build-$module\$/d
3047 /^@if build-$module-$bootstrap_suffix\$/d
3048 /^@endif build-$module-$bootstrap_suffix\$/d
3049 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
3050 done
3051 extrasub_host=
3052 for module in ${configdirs} ; do
3053 if test -z "${no_recursion}"; then
3054 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
3055 if test -f ${file}; then
3056 echo 1>&2 "*** removing ${file} to force reconfigure"
3057 rm -f ${file}
3058 fi
3059 done
3060 fi
3061 case ${module},${bootstrap_fixincludes} in
3062 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
3063 *) host_bootstrap_suffix=$bootstrap_suffix ;;
3064 esac
3065 extrasub_host="$extrasub_host
3066 /^@if $module\$/d
3067 /^@endif $module\$/d
3068 /^@unless $module\$/,/^@endunless $module\$/d
3069 /^@if $module-$host_bootstrap_suffix\$/d
3070 /^@endif $module-$host_bootstrap_suffix\$/d
3071 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
3072 done
3073 extrasub_target=
3074 for module in ${target_configdirs} ; do
3075 if test -z "${no_recursion}" \
3076 && test -f ${target_subdir}/${module}/Makefile; then
3077 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
3078 rm -f ${target_subdir}/${module}/Makefile
3079 fi
3081 # We only bootstrap target libraries listed in bootstrap_target_libs.
3082 case $bootstrap_target_libs in
3083 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
3084 *) target_bootstrap_suffix=no-bootstrap ;;
3085 esac
3087 extrasub_target="$extrasub_target
3088 /^@if target-$module\$/d
3089 /^@endif target-$module\$/d
3090 /^@unless target-$module\$/,/^@endunless target-$module\$/d
3091 /^@if target-$module-$target_bootstrap_suffix\$/d
3092 /^@endif target-$module-$target_bootstrap_suffix\$/d
3093 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
3094 done
3096 # Do the final fixup along with target modules.
3097 extrasub_target="$extrasub_target
3098 /^@if /,/^@endif /d
3099 /^@unless /d
3100 /^@endunless /d"
3102 if test "$enable_pgo_build" != "no"; then
3103 extrasub_build="$extrasub_build
3104 /^@if pgo-build\$/d
3105 /^@endif pgo-build\$/d"
3106 fi
3108 # Create the serialization dependencies. This uses a temporary file.
3110 AC_ARG_ENABLE([serial-configure],
3111 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3112 [force sequential configuration of
3113 sub-packages for the host, target or build
3114 machine, or all sub-packages])])
3116 case ${enable_serial_configure} in
3117 yes)
3118 enable_serial_build_configure=yes
3119 enable_serial_host_configure=yes
3120 enable_serial_target_configure=yes
3121 ;;
3122 esac
3124 # These force 'configure's to be done one at a time, to avoid problems
3125 # with contention over a shared config.cache.
3126 rm -f serdep.tmp
3127 echo '# serdep.tmp' > serdep.tmp
3128 olditem=
3129 test "x${enable_serial_build_configure}" = xyes &&
3130 for item in ${build_configdirs} ; do
3131 case ${olditem} in
3132 "") ;;
3133 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
3134 esac
3135 olditem=${item}
3136 done
3137 olditem=
3138 test "x${enable_serial_host_configure}" = xyes &&
3139 for item in ${configdirs} ; do
3140 case ${olditem} in
3141 "") ;;
3142 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
3143 esac
3144 olditem=${item}
3145 done
3146 olditem=
3147 test "x${enable_serial_target_configure}" = xyes &&
3148 for item in ${target_configdirs} ; do
3149 case ${olditem} in
3150 "") ;;
3151 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
3152 esac
3153 olditem=${item}
3154 done
3155 serialization_dependencies=serdep.tmp
3156 AC_SUBST_FILE(serialization_dependencies)
3158 # Base args. Strip norecursion, cache-file, srcdir, host, build,
3159 # target, nonopt, and variable assignments. These are the ones we
3160 # might not want to pass down to subconfigures. The exception being
3161 # --cache-file=/dev/null, which is used to turn off the use of cache
3162 # files altogether, and which should be passed on to subconfigures.
3163 # Also strip program-prefix, program-suffix, and program-transform-name,
3164 # so that we can pass down a consistent program-transform-name.
3165 baseargs=
3166 tbaseargs=
3167 keep_next=no
3168 skip_next=no
3169 eval "set -- $ac_configure_args"
3170 for ac_arg
3171 do
3172 if test X"$skip_next" = X"yes"; then
3173 skip_next=no
3174 continue
3175 fi
3176 if test X"$keep_next" = X"yes"; then
3177 case $ac_arg in
3178 *\'*)
3179 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3180 esac
3181 baseargs="$baseargs '$ac_arg'"
3182 tbaseargs="$tbaseargs '$ac_arg'"
3183 keep_next=no
3184 continue
3185 fi
3187 # Handle separated arguments. Based on the logic generated by
3188 # autoconf 2.59.
3189 case $ac_arg in
3190 *=* | --config-cache | -C | -disable-* | --disable-* \
3191 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3192 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3193 | -with-* | --with-* | -without-* | --without-* | --x)
3194 separate_arg=no
3195 ;;
3196 -*)
3197 separate_arg=yes
3198 ;;
3199 *)
3200 separate_arg=no
3201 ;;
3202 esac
3204 skip_targ=no
3205 case $ac_arg in
3206 changequote(,)
3207 --with-* | --without-*)
3208 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3210 case $libopt in
3211 *[-_]include)
3212 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3213 ;;
3214 *[-_]lib)
3215 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3216 ;;
3217 *)
3218 lib=$libopt
3219 ;;
3220 esac
3221 changequote([,])
3223 case $lib in
3224 mpc | mpfr | gmp | isl)
3225 # If we're processing --with-$lib, --with-$lib-include or
3226 # --with-$lib-lib, for one of the libs above, and target is
3227 # different from host, don't pass the current argument to any
3228 # target library's configure.
3229 if test x$is_cross_compiler = xyes; then
3230 skip_targ=yes
3231 fi
3232 ;;
3233 esac
3234 ;;
3235 esac
3237 case "$ac_arg" in
3238 --cache-file=/dev/null | \
3239 -cache-file=/dev/null )
3240 # Handled here to avoid the test to skip args below.
3241 baseargs="$baseargs '$ac_arg'"
3242 tbaseargs="$tbaseargs '$ac_arg'"
3243 # Assert: $separate_arg should always be no.
3244 keep_next=$separate_arg
3245 ;;
3246 --no*)
3247 continue
3248 ;;
3249 --c* | \
3250 --sr* | \
3251 --ho* | \
3252 --bu* | \
3253 --t* | \
3254 --program-* | \
3255 -cache_file* | \
3256 -srcdir* | \
3257 -host* | \
3258 -build* | \
3259 -target* | \
3260 -program-prefix* | \
3261 -program-suffix* | \
3262 -program-transform-name* )
3263 skip_next=$separate_arg
3264 continue
3265 ;;
3266 -*)
3267 # An option. Add it.
3268 case $ac_arg in
3269 *\'*)
3270 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3271 esac
3272 baseargs="$baseargs '$ac_arg'"
3273 if test X"$skip_targ" = Xno; then
3274 tbaseargs="$tbaseargs '$ac_arg'"
3275 fi
3276 keep_next=$separate_arg
3277 ;;
3278 *)
3279 # Either a variable assignment, or a nonopt (triplet). Don't
3280 # pass it down; let the Makefile handle this.
3281 continue
3282 ;;
3283 esac
3284 done
3285 # Remove the initial space we just introduced and, as these will be
3286 # expanded by make, quote '$'.
3287 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3289 # Add in --program-transform-name, after --program-prefix and
3290 # --program-suffix have been applied to it. Autoconf has already
3291 # doubled dollar signs and backslashes in program_transform_name; we want
3292 # the backslashes un-doubled, and then the entire thing wrapped in single
3293 # quotes, because this will be expanded first by make and then by the shell.
3294 # Also, because we want to override the logic in subdir configure scripts to
3295 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3296 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3297 ${program_transform_name}
3298 EOF_SED
3299 gcc_transform_name=`cat conftestsed.out`
3300 rm -f conftestsed.out
3301 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3302 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3303 if test "$silent" = yes; then
3304 baseargs="$baseargs --silent"
3305 tbaseargs="$tbaseargs --silent"
3306 fi
3308 baseargs="$baseargs --disable-option-checking"
3309 tbaseargs="$tbaseargs --disable-option-checking"
3311 if test "$enable_year2038" = no; then
3312 baseargs="$baseargs --disable-year2038"
3313 tbaseargs="$tbaseargs --disable-year2038"
3314 fi
3316 # Record and document user additions to sub configure arguments.
3317 AC_ARG_VAR([build_configargs],
3318 [additional configure arguments for build directories])
3319 AC_ARG_VAR([host_configargs],
3320 [additional configure arguments for host directories])
3321 AC_ARG_VAR([target_configargs],
3322 [additional configure arguments for target directories])
3324 # For the build-side libraries, we just need to pretend we're native,
3325 # and not use the same cache file. Multilibs are neither needed nor
3326 # desired. We can't even use the same cache file for all build-side
3327 # libraries, as they're compiled differently; some with C, some with
3328 # C++ or with different feature-enabling options.
3329 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3331 # For host modules, accept cache file option, or specification as blank.
3332 case "${cache_file}" in
3333 "") # empty
3334 cache_file_option="" ;;
3335 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3336 cache_file_option="--cache-file=${cache_file}" ;;
3337 *) # relative path
3338 cache_file_option="--cache-file=../${cache_file}" ;;
3339 esac
3341 # Host dirs don't like to share a cache file either, horribly enough.
3342 # This seems to be due to autoconf 2.5x stupidity.
3343 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3345 target_configargs="$target_configargs ${tbaseargs}"
3347 # Passing a --with-cross-host argument lets the target libraries know
3348 # whether they are being built with a cross-compiler or being built
3349 # native. However, it would be better to use other mechanisms to make the
3350 # sorts of decisions they want to make on this basis. Please consider
3351 # this option to be deprecated. FIXME.
3352 if test x${is_cross_compiler} = xyes ; then
3353 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3354 fi
3356 # Special user-friendly check for native x86_64-linux build, if
3357 # multilib is not explicitly enabled.
3358 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3359 x86_64-*linux*:yes:$build:$build:)
3360 # Make sure we have a development environment that handles 32-bit
3361 dev64=no
3362 echo "int main () { return 0; }" > conftest.c
3363 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3364 if test $? = 0 ; then
3365 if test -s conftest || test -s conftest.exe ; then
3366 dev64=yes
3367 fi
3368 fi
3369 rm -f conftest*
3370 if test x${dev64} != xyes ; then
3371 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.])
3372 fi
3373 ;;
3374 esac
3376 # Default to --enable-multilib.
3377 if test x${enable_multilib} = x ; then
3378 target_configargs="--enable-multilib ${target_configargs}"
3379 fi
3381 # Pass --with-newlib if appropriate. Note that target_configdirs has
3382 # changed from the earlier setting of with_newlib.
3383 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3384 target_configargs="--with-newlib ${target_configargs}"
3385 fi
3387 # Different target subdirs use different values of certain variables
3388 # (notably CXX). Worse, multilibs use *lots* of different values.
3389 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3390 # it doesn't automatically accept command-line overrides of them.
3391 # This means it's not safe for target subdirs to share a cache file,
3392 # which is disgusting, but there you have it. Hopefully this can be
3393 # fixed in future. It's still worthwhile to use a cache file for each
3394 # directory. I think.
3396 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3397 # We need to pass --target, as newer autoconf's requires consistency
3398 # for target_alias and gcc doesn't manage it consistently.
3399 target_configargs="--cache-file=./config.cache ${target_configargs}"
3401 FLAGS_FOR_TARGET=
3402 case " $target_configdirs " in
3403 *" newlib "*)
3404 case " $target_configargs " in
3405 *" --with-newlib "*)
3406 case "$target" in
3407 *-cygwin*)
3408 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3409 ;;
3410 esac
3412 # If we're not building GCC, don't discard standard headers.
3413 if test -d ${srcdir}/gcc; then
3414 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3416 if test "${build}" != "${host}"; then
3417 # On Canadian crosses, CC_FOR_TARGET will have already been set
3418 # by `configure', so we won't have an opportunity to add -Bgcc/
3419 # to it. This is right: we don't want to search that directory
3420 # for binaries, but we want the header files in there, so add
3421 # them explicitly.
3422 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3424 # Someone might think of using the pre-installed headers on
3425 # Canadian crosses, in case the installed compiler is not fully
3426 # compatible with the compiler being built. In this case, it
3427 # would be better to flag an error than risking having
3428 # incompatible object files being constructed. We can't
3429 # guarantee that an error will be flagged, but let's hope the
3430 # compiler will do it, when presented with incompatible header
3431 # files.
3432 fi
3433 fi
3435 case "${target}-${is_cross_compiler}" in
3436 i[[3456789]]86-*-linux*-no)
3437 # Here host == target, so we don't need to build gcc,
3438 # so we don't want to discard standard headers.
3439 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3440 ;;
3441 *)
3442 # If we're building newlib, use its generic headers last, but search
3443 # for any libc-related directories first (so make it the last -B
3444 # switch).
3445 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3447 # If we're building libgloss, find the startup file, simulator library
3448 # and linker script.
3449 case " $target_configdirs " in
3450 *" libgloss "*)
3451 # Look for startup file, simulator library and maybe linker script.
3452 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3453 # Look for libnosys.a in case the target needs it.
3454 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3455 # Most targets have the linker script in the source directory.
3456 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3457 ;;
3458 esac
3459 ;;
3460 esac
3461 ;;
3462 esac
3463 ;;
3464 esac
3466 case "$target" in
3467 x86_64-*mingw* | *-w64-mingw*)
3468 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3469 # however, use a symlink named 'mingw' in ${prefix} .
3470 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3471 ;;
3472 *-mingw*)
3473 # MinGW can't be handled as Cygwin above since it does not use newlib.
3474 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3475 ;;
3476 esac
3478 # Allow the user to override the flags for
3479 # our build compiler if desired.
3480 if test x"${build}" = x"${host}" ; then
3481 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3482 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
3483 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3484 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3485 fi
3487 # On Canadian crosses, we'll be searching the right directories for
3488 # the previously-installed cross compiler, so don't bother to add
3489 # flags for directories within the install tree of the compiler
3490 # being built; programs in there won't even run.
3491 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3492 # Search for pre-installed headers if nothing else fits.
3493 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3494 fi
3496 if test "x${use_gnu_ld}" = x &&
3497 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3498 # Arrange for us to find uninstalled linker scripts.
3499 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3500 fi
3502 # Search for other target-specific linker scripts and such.
3503 case "${target}" in
3504 mep*)
3505 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3506 ;;
3507 # The VxWorks support for shared libraries is getting in
3508 # incrementally. Make sure it doesn't get activated implicitly:
3509 *vxworks*)
3510 if test "${enable_shared-unset}" = unset ; then
3511 enable_shared=no
3512 # So the build of libraries knows ...
3513 target_configargs="${target_configargs} --disable-shared"
3514 # So gcc knows ...
3515 host_configargs="${host_configargs} --disable-shared"
3516 fi
3517 ;;
3518 esac
3520 # Makefile fragments.
3521 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3522 do
3523 eval fragval=\$$frag
3524 if test $fragval != /dev/null; then
3525 eval $frag=${srcdir}/$fragval
3526 fi
3527 done
3528 AC_SUBST_FILE(host_makefile_frag)
3529 AC_SUBST_FILE(target_makefile_frag)
3530 AC_SUBST_FILE(alphaieee_frag)
3531 AC_SUBST_FILE(ospace_frag)
3533 # Miscellanea: directories, flags, etc.
3534 AC_SUBST(RPATH_ENVVAR)
3535 AC_SUBST(GCC_SHLIB_SUBDIR)
3536 AC_SUBST(tooldir)
3537 AC_SUBST(build_tooldir)
3538 AC_SUBST(CONFIGURE_GDB_TK)
3539 AC_SUBST(GDB_TK)
3540 AC_SUBST(INSTALL_GDB_TK)
3542 # Build module lists & subconfigure args.
3543 AC_SUBST(build_configargs)
3544 AC_SUBST(build_configdirs)
3546 # Host module lists & subconfigure args.
3547 AC_SUBST(host_configargs)
3548 AC_SUBST(configdirs)
3549 AC_SUBST(target_configdirs)
3551 # Target module lists & subconfigure args.
3552 AC_SUBST(target_configargs)
3555 # Build tools.
3556 AC_SUBST(AR_FOR_BUILD)
3557 AC_SUBST(AS_FOR_BUILD)
3558 AC_SUBST(CC_FOR_BUILD)
3559 AC_SUBST(CFLAGS_FOR_BUILD)
3560 AC_SUBST(CPP_FOR_BUILD)
3561 AC_SUBST(CPPFLAGS_FOR_BUILD)
3562 AC_SUBST(CXXFLAGS_FOR_BUILD)
3563 AC_SUBST(CXX_FOR_BUILD)
3564 AC_SUBST(DLLTOOL_FOR_BUILD)
3565 AC_SUBST(DSYMUTIL_FOR_BUILD)
3566 AC_SUBST(GFORTRAN_FOR_BUILD)
3567 AC_SUBST(GOC_FOR_BUILD)
3568 AC_SUBST(GDC_FOR_BUILD)
3569 AC_SUBST(LDFLAGS_FOR_BUILD)
3570 AC_SUBST(LD_FOR_BUILD)
3571 AC_SUBST(NM_FOR_BUILD)
3572 AC_SUBST(RANLIB_FOR_BUILD)
3573 AC_SUBST(WINDMC_FOR_BUILD)
3574 AC_SUBST(WINDRES_FOR_BUILD)
3576 # Generate default definitions for YACC, M4, LEX and other programs that run
3577 # on the build machine. These are used if the Makefile can't locate these
3578 # programs in objdir.
3579 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3581 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3582 case " $build_configdirs " in
3583 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3584 esac
3586 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3587 case " $build_configdirs " in
3588 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3589 esac
3591 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3592 case " $build_configdirs " in
3593 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3594 esac
3596 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3597 case " $build_configdirs " in
3598 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3599 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3600 esac
3602 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3603 case " $build_configdirs " in
3604 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3605 esac
3607 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3608 case " $build_configdirs " in
3609 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3610 *)
3611 changequote(,)
3612 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3613 # higher, else we use the "missing" dummy.
3614 if ${MAKEINFO} --version \
3615 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3616 :
3617 else
3618 MAKEINFO="$MISSING makeinfo"
3619 fi
3620 ;;
3621 changequote([,])
3622 esac
3624 # FIXME: expect and dejagnu may become build tools?
3626 AC_CHECK_PROGS(EXPECT, expect, expect)
3627 case " $configdirs " in
3628 *" expect "*)
3629 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3630 ;;
3631 esac
3633 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3634 case " $configdirs " in
3635 *" dejagnu "*)
3636 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3637 ;;
3638 esac
3641 # Host tools.
3642 NCN_STRICT_CHECK_TOOLS(AR, ar)
3643 NCN_STRICT_CHECK_TOOLS(AS, as)
3644 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3645 NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
3646 NCN_STRICT_CHECK_TOOLS(LD, ld)
3647 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3648 NCN_STRICT_CHECK_TOOLS(NM, nm)
3649 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3650 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3651 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3652 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3653 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3654 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3655 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3656 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3657 AC_SUBST(CC)
3658 AC_SUBST(CXX)
3659 AC_SUBST(CFLAGS)
3660 AC_SUBST(CXXFLAGS)
3661 AC_SUBST(GDC)
3662 AC_SUBST(GDCFLAGS)
3663 AC_SUBST(PKG_CONFIG_PATH)
3665 GCC_PLUGIN_OPTION(PLUGIN_OPTION)
3666 AR_PLUGIN_OPTION=
3667 RANLIB_PLUGIN_OPTION=
3668 if test -n "$PLUGIN_OPTION"; then
3669 if $AR --help 2>&1 | grep -q "\--plugin"; then
3670 AR_PLUGIN_OPTION="$PLUGIN_OPTION"
3671 fi
3672 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
3673 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
3674 fi
3675 fi
3676 AC_SUBST(AR_PLUGIN_OPTION)
3677 AC_SUBST(RANLIB_PLUGIN_OPTION)
3679 # Target tools.
3680 AC_ARG_WITH([build-time-tools],
3681 [AS_HELP_STRING([--with-build-time-tools=PATH],
3682 [use given path to find target tools during the build])],
3683 [case x"$withval" in
3684 x/*) ;;
3685 *)
3686 with_build_time_tools=
3687 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3688 ;;
3689 esac],
3690 [with_build_time_tools=])
3692 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3693 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3694 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3695 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3696 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3697 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3699 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3700 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3701 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3702 ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
3703 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3704 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3705 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3706 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3707 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3708 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3709 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3710 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3711 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3712 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3713 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3715 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3717 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3718 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3719 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3720 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3721 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3722 [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],
3723 c++)
3724 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3725 [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],
3726 c++)
3727 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3728 GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
3729 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3730 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3731 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3732 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3733 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3734 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3735 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3736 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3737 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3738 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3739 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3740 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3741 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3742 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3743 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3744 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3745 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3746 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3748 AC_SUBST(FLAGS_FOR_TARGET)
3749 AC_SUBST(RAW_CXX_FOR_TARGET)
3751 # Certain tools may need extra flags.
3752 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3753 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3754 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3756 # When building target libraries, except in a Canadian cross, we use
3757 # the same toolchain as the compiler we just built.
3758 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3759 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3760 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3761 if test $host = $build; then
3762 case " $configdirs " in
3763 *" gcc "*)
3764 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3765 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3766 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3767 ;;
3768 esac
3769 fi
3771 AC_SUBST(COMPILER_AS_FOR_TARGET)
3772 AC_SUBST(COMPILER_LD_FOR_TARGET)
3773 AC_SUBST(COMPILER_NM_FOR_TARGET)
3775 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3776 AC_ARG_ENABLE(maintainer-mode,
3777 [AS_HELP_STRING([--enable-maintainer-mode],
3778 [enable make rules and dependencies not useful
3779 (and sometimes confusing) to the casual installer])],
3780 USE_MAINTAINER_MODE=$enableval,
3781 USE_MAINTAINER_MODE=no)
3782 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3783 AC_SUBST(MAINTAINER_MODE_TRUE)
3784 AC_SUBST(MAINTAINER_MODE_FALSE)
3785 if test "$USE_MAINTAINER_MODE" = yes; then
3786 MAINTAINER_MODE_TRUE=
3787 MAINTAINER_MODE_FALSE='#'
3788 else
3789 MAINTAINER_MODE_TRUE='#'
3790 MAINTAINER_MODE_FALSE=
3791 fi
3792 MAINT=$MAINTAINER_MODE_TRUE
3793 AC_SUBST(MAINT)dnl
3795 # ---------------------
3796 # GCC bootstrap support
3797 # ---------------------
3799 # Stage specific cflags for build.
3800 stage1_cflags="-g"
3801 case $build in
3802 vax-*-*)
3803 case ${GCC} in
3804 yes) stage1_cflags="-g -Wa,-J" ;;
3805 *) stage1_cflags="-g -J" ;;
3806 esac ;;
3807 esac
3809 AC_SUBST(stage1_cflags)
3811 # Enable --enable-checking in stage1 of the compiler.
3812 AC_ARG_ENABLE(stage1-checking,
3813 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3814 [choose additional checking for stage1 of the compiler])],
3815 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3816 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3817 # For --disable-checking or implicit --enable-checking=release, avoid
3818 # setting --enable-checking=gc in the default stage1 checking for LTO
3819 # bootstraps. See PR62077.
3820 case $BUILD_CONFIG in
3821 *lto*)
3822 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3823 *)
3824 stage1_checking=--enable-checking=yes,types;;
3825 esac
3826 if test "x$enable_checking" = x && \
3827 test -d ${srcdir}/gcc && \
3828 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3829 stage1_checking=--enable-checking=yes,types,extra
3830 fi
3831 else
3832 stage1_checking=--enable-checking=$enable_checking,types
3833 fi])
3834 AC_SUBST(stage1_checking)
3836 # Enable -Werror in bootstrap stage2 and later.
3837 AC_ARG_ENABLE(werror,
3838 [AS_HELP_STRING([--enable-werror],
3839 [enable -Werror in bootstrap stage2 and later])],
3840 [
3841 case ${enable_werror} in
3842 yes) stage2_werror_flag="--enable-werror-always" ;;
3843 *) stage2_werror_flag="" ;;
3844 esac
3845 ],
3846 [
3847 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3848 case $BUILD_CONFIG in
3849 bootstrap-debug)
3850 stage2_werror_flag="--enable-werror-always" ;;
3851 "")
3852 stage2_werror_flag="--enable-werror-always" ;;
3853 esac
3854 fi
3855 ])
3857 AC_SUBST(stage2_werror_flag)
3859 # Specify what files to not compare during bootstrap.
3861 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3862 case "$target" in
3863 hppa*64*-*-hpux*) ;;
3864 hppa*-*-hpux*) compare_exclusions="$compare_exclusions | */libgcc/lib2funcs* | gcc/function-tests.o" ;;
3865 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
3866 esac
3867 AC_SUBST(compare_exclusions)
3869 AC_CONFIG_FILES([Makefile],
3870 [sed "$extrasub_build" Makefile |
3871 sed "$extrasub_host" |
3872 sed "$extrasub_target" > mf$$
3873 mv -f mf$$ Makefile],
3874 [extrasub_build="$extrasub_build"
3875 extrasub_host="$extrasub_host"
3876 extrasub_target="$extrasub_target"])
3877 AC_OUTPUT