| blob | 9a72b2311bdda6a82a51ab8e910281dc91f7dad7 |
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/ax_cxx_compile_stdcxx.m4)
27 m4_include(config/gcc-plugin.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="gettext libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf libsframe libgrust "
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 gm2tools 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-libatomic \
155 target-libitm \
156 target-libstdc++-v3 \
157 target-libsanitizer \
158 target-libvtv \
159 target-libssp \
160 target-libquadmath \
161 target-libgfortran \
162 target-libffi \
163 target-libobjc \
164 target-libada \
165 target-libgm2 \
166 target-libgo \
167 target-libgrust \
168 target-libphobos \
169 target-zlib"
171 # these tools are built using the target libraries, and are intended to
172 # run only in the target environment
173 #
174 # note: any program that *uses* libraries that are in the "target_libraries"
175 # list belongs in this list.
176 #
177 target_tools="target-rda"
179 ################################################################################
181 ## All tools belong in one of the four categories, and are assigned above
182 ## We assign ${configdirs} this way to remove all embedded newlines. This
183 ## is important because configure will choke if they ever get through.
184 ## ${configdirs} is directories we build using the host tools.
185 ## ${target_configdirs} is directories we build using the target tools.
186 configdirs=`echo ${host_libs} ${host_tools}`
187 target_configdirs=`echo ${target_libraries} ${target_tools}`
188 build_configdirs=`echo ${build_libs} ${build_tools}`
190 m4_divert_text([PARSE_ARGS],
191 [case $srcdir in
192 *" "*)
193 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
194 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
195 m4_popdef([AS_MESSAGE_LOG_FD])dnl
196 ;;
197 esac
198 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
199 ])
201 ################################################################################
203 srcname="gnu development package"
205 # This gets set non-empty for some net releases of packages.
206 appdirs=""
208 # Define is_cross_compiler to save on calls to 'test'.
209 is_cross_compiler=
210 if test x"${host}" = x"${target}" ; then
211 is_cross_compiler=no
212 else
213 is_cross_compiler=yes
214 fi
216 # Find the build and target subdir names.
217 GCC_TOPLEV_SUBDIRS
218 # Be sure to cover against remnants of an in-tree build.
219 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
220 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
221 Use a pristine source tree when building in a separate tree])
222 fi
224 # Skipdirs are removed silently.
225 skipdirs=
226 # Noconfigdirs are removed loudly.
227 noconfigdirs=""
229 use_gnu_ld=
230 # Make sure we don't let GNU ld be added if we didn't want it.
231 if test x$with_gnu_ld = xno ; then
232 use_gnu_ld=no
233 noconfigdirs="$noconfigdirs ld gold"
234 fi
236 use_gnu_as=
237 # Make sure we don't let GNU as be added if we didn't want it.
238 if test x$with_gnu_as = xno ; then
239 use_gnu_as=no
240 noconfigdirs="$noconfigdirs gas"
241 fi
243 use_included_zlib=
244 AC_ARG_WITH(system-zlib,
245 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
246 # Make sure we don't let ZLIB be added if we didn't want it.
247 if test x$with_system_zlib = xyes ; then
248 use_included_zlib=no
249 noconfigdirs="$noconfigdirs zlib"
250 fi
252 # Don't compile the bundled readline/libreadline.a if --with-system-readline
253 # is provided.
254 if test x$with_system_readline = xyes ; then
255 noconfigdirs="$noconfigdirs readline"
256 fi
258 AC_ARG_WITH(zstd,
259 [AS_HELP_STRING([--with-zstd], [Support zstd compressed debug sections (default=auto)])])
261 # some tools are so dependent upon X11 that if we're not building with X,
262 # it's not even worth trying to configure, much less build, that tool.
264 case ${with_x} in
265 yes | "") ;; # the default value for this tree is that X11 is available
266 no)
267 skipdirs="${skipdirs} tk itcl libgui"
268 # We won't be able to build gdbtk without X.
269 enable_gdbtk=no
270 ;;
271 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
272 esac
274 # Some are only suitable for cross toolchains.
275 # Remove these if host=target.
276 cross_only="target-libgloss target-newlib target-opcodes"
278 case $is_cross_compiler in
279 no) skipdirs="${skipdirs} ${cross_only}" ;;
280 esac
282 # If both --with-headers and --with-libs are specified, default to
283 # --without-newlib.
284 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
285 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
286 if test x"${with_newlib}" = x ; then
287 with_newlib=no
288 fi
289 fi
291 # Recognize --with-newlib/--without-newlib.
292 case ${with_newlib} in
293 no) skipdirs="${skipdirs} target-newlib" ;;
294 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
295 esac
297 AC_ARG_ENABLE(as-accelerator-for,
298 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
299 [build as offload target compiler.
300 Specify offload host triple by ARG])])
302 AC_ARG_ENABLE(offload-targets,
303 [AS_HELP_STRING([--enable-offload-targets=LIST],
304 [enable offloading to devices from comma-separated LIST of
305 TARGET[=DIR]. Use optional path to find offload target compiler
306 during the build])],
307 [
308 if test x"$enable_offload_targets" = x; then
309 AC_MSG_ERROR([no offload targets specified])
310 fi
311 ], [enable_offload_targets=])
313 AC_ARG_ENABLE(offload-defaulted,
314 [AS_HELP_STRING([--enable-offload-defaulted]
315 [If enabled, configured but not installed offload compilers and
316 libgomp plugins are silently ignored. Useful for distribution
317 compilers where those are in separate optional packages.])],
318 [enable_offload_defaulted=$enableval],
319 [enable_offload_defaulted=])
321 # Handle --enable-gold, --enable-ld.
322 # --disable-gold [--enable-ld]
323 # Build only ld. Default option.
324 # --enable-gold [--enable-ld]
325 # Build both gold and ld. Install gold as "ld.gold", install ld
326 # as "ld.bfd" and "ld".
327 # --enable-gold=default [--enable-ld]
328 # Build both gold and ld. Install gold as "ld.gold" and "ld",
329 # install ld as "ld.bfd".
330 # --enable-gold[=default] --disable-ld
331 # Build only gold, which is then installed as both "ld.gold" and "ld".
332 # --enable-gold --enable-ld=default
333 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
334 # and ld.bfd).
335 # In other words, ld is default
336 # --enable-gold=default --enable-ld=default
337 # Error.
339 default_ld=
340 AC_ARG_ENABLE(gold,
341 [AS_HELP_STRING([[--enable-gold[=ARG]]],
342 [build gold @<:@ARG={default,yes,no}@:>@])],
343 ENABLE_GOLD=$enableval,
344 ENABLE_GOLD=no)
345 case "${ENABLE_GOLD}" in
346 yes|default)
347 # Check for ELF target.
348 is_elf=no
349 case "${target}" in
350 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
351 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
352 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
353 | *-*-solaris2* | *-*-nto* | *-*-nacl* | *-*-haiku*)
354 case "${target}" in
355 *-*-linux*aout* | *-*-linux*oldld*)
356 ;;
357 *)
358 is_elf=yes
359 ;;
360 esac
361 esac
363 if test "$is_elf" = "yes"; then
364 # Check for target supported by gold.
365 case "${target}" in
366 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
367 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
368 configdirs="$configdirs gold"
369 if test x${ENABLE_GOLD} = xdefault; then
370 default_ld=gold
371 fi
372 ENABLE_GOLD=yes
373 ;;
374 esac
375 fi
376 ;;
377 no)
378 ;;
379 *)
380 AC_MSG_ERROR([invalid --enable-gold argument])
381 ;;
382 esac
384 AC_ARG_ENABLE(ld,
385 [AS_HELP_STRING([[--enable-ld[=ARG]]],
386 [build ld @<:@ARG={default,yes,no}@:>@])],
387 ENABLE_LD=$enableval,
388 ENABLE_LD=yes)
390 case "${ENABLE_LD}" in
391 default)
392 if test x${default_ld} != x; then
393 AC_MSG_ERROR([either gold or ld can be the default ld])
394 fi
395 ;;
396 yes)
397 ;;
398 no)
399 if test x${ENABLE_GOLD} != xyes; then
400 AC_MSG_WARN([neither ld nor gold are enabled])
401 fi
402 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
403 ;;
404 *)
405 AC_MSG_ERROR([invalid --enable-ld argument])
406 ;;
407 esac
409 AC_ARG_ENABLE(gprofng,
410 [AS_HELP_STRING([[--disable-gprofng]], [do not build gprofng])],
411 enable_gprofng=$enableval,
412 enable_gprofng=yes)
413 if test "$enable_gprofng" = "yes"; then
414 case "${target}" in
415 *-musl*)
416 ;;
417 x86_64-*-linux* | i?86-*-linux* | aarch64-*-linux* | riscv64-*-linux*)
418 configdirs="$configdirs gprofng"
419 ;;
420 esac
421 fi
424 # PR gas/19109
425 # Decide the default method for compressing debug sections.
426 # Provide a configure time option to override our default.
427 AC_ARG_ENABLE(compressed_debug_sections,
428 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
429 [Enable compressed debug sections for gas, gold or ld by
430 default])],
431 [
432 if test x"$enable_compressed_debug_sections" = xyes; then
433 AC_MSG_ERROR([no program with compressed debug sections specified])
434 fi
435 ], [enable_compressed_debug_sections=])
437 # Select default compression algorithm.
438 AC_ARG_ENABLE(default_compressed_debug_sections_algorithm,
439 [AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}],
440 [Default compression algorithm for --enable-compressed-debug-sections.])],
441 [], [default_compressed_debug_sections_algorithm=])
443 # Configure extra directories which are host specific
445 case "${host}" in
446 *-cygwin*)
447 configdirs="$configdirs libtermcap" ;;
448 esac
450 # A target can indicate whether a language isn't supported for some reason.
451 # Only spaces may be used in this macro; not newlines or tabs.
452 unsupported_languages=
454 # Remove more programs from consideration, based on the host or
455 # target this usually means that a port of the program doesn't
456 # exist yet.
458 case "${host}" in
459 i[[3456789]]86-*-msdosdjgpp*)
460 noconfigdirs="$noconfigdirs tcl tk itcl"
461 ;;
462 esac
464 # Default to --disable-year2038 until we can handle differences between
465 # projects that use gnulib (which understands year 2038) and projects that
466 # do not (like BFD).
467 AC_ARG_ENABLE(year2038,
468 AS_HELP_STRING([--enable-year2038],
469 [enable support for timestamps past the year 2038]),
470 ENABLE_YEAR2038=$enableval,
471 ENABLE_YEAR2038=no)
472 enable_year2038=
473 if test "${ENABLE_YEAR2038}" = "no" ; then
474 enable_year2038=no
475 fi
477 AC_ARG_ENABLE(libquadmath,
478 AS_HELP_STRING([--disable-libquadmath],
479 [do not build libquadmath directory]),
480 ENABLE_LIBQUADMATH=$enableval,
481 ENABLE_LIBQUADMATH=yes)
482 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
483 noconfigdirs="$noconfigdirs target-libquadmath"
484 fi
487 AC_ARG_ENABLE(libquadmath-support,
488 AS_HELP_STRING([--disable-libquadmath-support],
489 [disable libquadmath support for Fortran]),
490 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
491 ENABLE_LIBQUADMATH_SUPPORT=yes)
492 enable_libquadmath_support=
493 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
494 enable_libquadmath_support=no
495 fi
498 AC_ARG_ENABLE(libada,
499 [AS_HELP_STRING([--enable-libada], [build libada directory])],
500 ENABLE_LIBADA=$enableval,
501 ENABLE_LIBADA=yes)
502 if test "${ENABLE_LIBADA}" != "yes" ; then
503 noconfigdirs="$noconfigdirs gnattools"
504 fi
506 AC_ARG_ENABLE(libgm2,
507 [AS_HELP_STRING([--enable-libgm2], [build libgm2 directory])],
508 ENABLE_LIBGM2=$enableval,
509 ENABLE_LIBGM2=no)
510 if test "${ENABLE_LIBGM2}" != "yes" ; then
511 noconfigdirs="$noconfigdirs gm2tools"
512 fi
514 AC_ARG_ENABLE(libssp,
515 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
516 ENABLE_LIBSSP=$enableval,
517 ENABLE_LIBSSP=yes)
519 AC_ARG_ENABLE(libstdcxx,
520 AS_HELP_STRING([--disable-libstdcxx],
521 [do not build libstdc++-v3 directory]),
522 ENABLE_LIBSTDCXX=$enableval,
523 ENABLE_LIBSTDCXX=default)
524 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
525 noconfigdirs="$noconfigdirs target-libstdc++-v3"
526 fi]
528 # Enable libgomp by default on hosted POSIX systems, and a few others.
529 if test x$enable_libgomp = x ; then
530 case "${target}" in
531 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
532 ;;
533 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
534 ;;
535 *-*-solaris2* | *-*-hpux11*)
536 ;;
537 *-*-darwin* | *-*-aix*)
538 ;;
539 nvptx*-*-* | amdgcn*-*-*)
540 ;;
541 *)
542 noconfigdirs="$noconfigdirs target-libgomp"
543 ;;
544 esac
545 fi
547 # Disable libatomic on unsupported systems.
548 if test -d ${srcdir}/libatomic; then
549 if test x$enable_libatomic = x; then
550 AC_MSG_CHECKING([for libatomic support])
551 if (srcdir=${srcdir}/libatomic; \
552 . ${srcdir}/configure.tgt; \
553 test -n "$UNSUPPORTED")
554 then
555 AC_MSG_RESULT([no])
556 noconfigdirs="$noconfigdirs target-libatomic"
557 else
558 AC_MSG_RESULT([yes])
559 fi
560 fi
561 fi
563 # Disable libitm on unsupported systems.
564 if test -d ${srcdir}/libitm; then
565 if test x$enable_libitm = x; then
566 AC_MSG_CHECKING([for libitm support])
567 if (srcdir=${srcdir}/libitm; \
568 . ${srcdir}/configure.tgt; \
569 test -n "$UNSUPPORTED")
570 then
571 AC_MSG_RESULT([no])
572 noconfigdirs="$noconfigdirs target-libitm"
573 else
574 AC_MSG_RESULT([yes])
575 fi
576 fi
577 fi
579 # Disable libsanitizer on unsupported systems.
580 if test -d ${srcdir}/libsanitizer; then
581 if test x$enable_libsanitizer = x; then
582 AC_MSG_CHECKING([for libsanitizer support])
583 if (srcdir=${srcdir}/libsanitizer; \
584 . ${srcdir}/configure.tgt; \
585 test -n "$UNSUPPORTED")
586 then
587 AC_MSG_RESULT([no])
588 noconfigdirs="$noconfigdirs target-libsanitizer"
589 else
590 AC_MSG_RESULT([yes])
591 fi
592 fi
593 fi
595 # Disable libvtv on unsupported systems.
596 if test -d ${srcdir}/libvtv; then
597 if test x$enable_libvtv = x; then
598 AC_MSG_CHECKING([for libvtv support])
599 if (srcdir=${srcdir}/libvtv; \
600 . ${srcdir}/configure.tgt; \
601 test "$VTV_SUPPORTED" != "yes")
602 then
603 AC_MSG_RESULT([no])
604 noconfigdirs="$noconfigdirs target-libvtv"
605 else
606 AC_MSG_RESULT([yes])
607 fi
608 fi
609 fi
611 # Disable libquadmath for some systems.
612 case "${target}" in
613 avr-*-*)
614 noconfigdirs="$noconfigdirs target-libquadmath"
615 ;;
616 # libquadmath is unused on AIX and libquadmath build process use of
617 # LD_LIBRARY_PATH can break AIX bootstrap.
618 powerpc-*-aix* | rs6000-*-aix*)
619 noconfigdirs="$noconfigdirs target-libquadmath"
620 ;;
621 esac
623 # Disable libssp for some systems.
624 case "${target}" in
625 avr-*-*)
626 # No hosted I/O support.
627 noconfigdirs="$noconfigdirs target-libssp"
628 ;;
629 bpf-*-*)
630 noconfigdirs="$noconfigdirs target-libssp"
631 ;;
632 powerpc-*-aix* | rs6000-*-aix*)
633 noconfigdirs="$noconfigdirs target-libssp"
634 ;;
635 pru-*-*)
636 # No hosted I/O support.
637 noconfigdirs="$noconfigdirs target-libssp"
638 ;;
639 rl78-*-*)
640 # libssp uses a misaligned load to trigger a fault, but the RL78
641 # doesn't fault for those - instead, it gives a build-time error
642 # for explicit misaligned loads.
643 noconfigdirs="$noconfigdirs target-libssp"
644 ;;
645 visium-*-*)
646 # No hosted I/O support.
647 noconfigdirs="$noconfigdirs target-libssp"
648 ;;
649 esac
651 # Disable libstdc++-v3 for some systems.
652 # Allow user to override this if they pass --enable-libstdcxx
653 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
654 case "${target}" in
655 *-*-vxworks*)
656 # VxWorks uses the Dinkumware C++ library.
657 noconfigdirs="$noconfigdirs target-libstdc++-v3"
658 ;;
659 amdgcn*-*-*)
660 # Not ported/fails to build when using newlib.
661 noconfigdirs="$noconfigdirs target-libstdc++-v3"
662 ;;
663 arm*-wince-pe*)
664 # the C++ libraries don't build on top of CE's C libraries
665 noconfigdirs="$noconfigdirs target-libstdc++-v3"
666 ;;
667 avr-*-*)
668 noconfigdirs="$noconfigdirs target-libstdc++-v3"
669 ;;
670 bpf-*-*)
671 noconfigdirs="$noconfigdirs target-libstdc++-v3"
672 ;;
673 ft32-*-*)
674 noconfigdirs="$noconfigdirs target-libstdc++-v3"
675 ;;
676 esac
677 fi
679 # Disable C++ on systems where it is known to not work.
680 # For testing, you can override this with --enable-languages=c++.
681 case ,${enable_languages}, in
682 *,c++,*)
683 ;;
684 *)
685 case "${target}" in
686 bpf-*-*)
687 unsupported_languages="$unsupported_languages c++"
688 ;;
689 esac
690 ;;
691 esac
693 # Disable Objc on systems where it is known to not work.
694 # For testing, you can override this with --enable-languages=objc.
695 case ,${enable_languages}, in
696 *,objc,*)
697 ;;
698 *)
699 case "${target}" in
700 bpf-*-*)
701 unsupported_languages="$unsupported_languages objc"
702 ;;
703 esac
704 ;;
705 esac
707 # Disable D on systems where it is known to not work.
708 # For testing, you can override this with --enable-languages=d.
709 case ,${enable_languages}, in
710 *,d,*)
711 ;;
712 *)
713 case "${target}" in
714 bpf-*-*)
715 unsupported_languages="$unsupported_languages d"
716 ;;
717 esac
718 ;;
719 esac
721 # Disable libphobos on unsupported systems.
722 # For testing, you can override this with --enable-libphobos.
723 if test -d ${srcdir}/libphobos; then
724 if test x$enable_libphobos = x; then
725 AC_MSG_CHECKING([for libphobos support])
726 if (srcdir=${srcdir}/libphobos; \
727 . ${srcdir}/configure.tgt; \
728 test "$LIBPHOBOS_SUPPORTED" != "yes")
729 then
730 AC_MSG_RESULT([no])
731 noconfigdirs="$noconfigdirs target-libphobos"
732 else
733 AC_MSG_RESULT([yes])
734 fi
735 fi
736 fi
738 # Disable Fortran for some systems.
739 case "${target}" in
740 mmix-*-*)
741 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
742 unsupported_languages="$unsupported_languages fortran"
743 ;;
744 bpf-*-*)
745 unsupported_languages="$unsupported_languages fortran"
746 ;;
747 esac
749 # Disable libffi for some systems.
750 case "${target}" in
751 powerpc-*-darwin*)
752 ;;
753 i[[3456789]]86-*-darwin*)
754 ;;
755 x86_64-*-darwin[[912]]*)
756 ;;
757 *-*-darwin*)
758 noconfigdirs="$noconfigdirs target-libffi"
759 ;;
760 *-*-netware*)
761 noconfigdirs="$noconfigdirs target-libffi"
762 ;;
763 *-*-phoenix*)
764 noconfigdirs="$noconfigdirs target-libffi"
765 ;;
766 *-*-rtems*)
767 noconfigdirs="$noconfigdirs target-libffi"
768 ;;
769 *-*-tpf*)
770 noconfigdirs="$noconfigdirs target-libffi"
771 ;;
772 *-*-uclinux*)
773 noconfigdirs="$noconfigdirs target-libffi"
774 ;;
775 *-*-vxworks*)
776 noconfigdirs="$noconfigdirs target-libffi"
777 ;;
778 aarch64*-*-freebsd*)
779 noconfigdirs="$noconfigdirs target-libffi"
780 ;;
781 alpha*-*-*vms*)
782 noconfigdirs="$noconfigdirs target-libffi"
783 ;;
784 arm*-*-freebsd*)
785 noconfigdirs="$noconfigdirs target-libffi"
786 ;;
787 arm-wince-pe)
788 noconfigdirs="$noconfigdirs target-libffi"
789 ;;
790 arm*-*-symbianelf*)
791 noconfigdirs="$noconfigdirs target-libffi"
792 ;;
793 bpf-*-*)
794 noconfigdirs="$noconfigdirs target-libffi"
795 ;;
796 cris-*-* | crisv32-*-*)
797 case "${target}" in
798 *-*-linux*)
799 ;;
800 *) # See PR46792 regarding target-libffi.
801 noconfigdirs="$noconfigdirs target-libffi";;
802 esac
803 ;;
804 hppa*64*-*-hpux*)
805 noconfigdirs="$noconfigdirs target-libffi"
806 ;;
807 hppa*-hp-hpux11*)
808 ;;
809 hppa*-*-hpux*)
810 noconfigdirs="$noconfigdirs target-libffi"
811 ;;
812 ia64*-*-*vms*)
813 noconfigdirs="$noconfigdirs target-libffi"
814 ;;
815 i[[3456789]]86-w64-mingw*)
816 noconfigdirs="$noconfigdirs target-libffi"
817 ;;
818 i[[3456789]]86-*-mingw*)
819 noconfigdirs="$noconfigdirs target-libffi"
820 ;;
821 x86_64-*-mingw*)
822 noconfigdirs="$noconfigdirs target-libffi"
823 ;;
824 mmix-*-*)
825 noconfigdirs="$noconfigdirs target-libffi"
826 ;;
827 powerpc-*-aix*)
828 ;;
829 rs6000-*-aix*)
830 ;;
831 ft32-*-*)
832 noconfigdirs="$noconfigdirs target-libffi"
833 ;;
834 *-*-lynxos*)
835 noconfigdirs="$noconfigdirs target-libffi"
836 ;;
837 esac
839 # Disable the go frontend on systems where it is known to not work. Please keep
840 # this in sync with contrib/config-list.mk.
841 case "${target}" in
842 *-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
843 unsupported_languages="$unsupported_languages go"
844 ;;
845 esac
847 # Only allow gdbserver on some systems.
848 if test -d ${srcdir}/gdbserver; then
849 if test x$enable_gdbserver = x; then
850 AC_MSG_CHECKING([for gdbserver support])
851 if (srcdir=${srcdir}/gdbserver; \
852 . ${srcdir}/configure.srv; \
853 test -n "$UNSUPPORTED")
854 then
855 AC_MSG_RESULT([no])
856 noconfigdirs="$noconfigdirs gdbserver"
857 else
858 AC_MSG_RESULT([yes])
859 fi
860 fi
861 fi
863 # Disable libgo for some systems where it is known to not work.
864 # For testing, you can easily override this with --enable-libgo.
865 if test x$enable_libgo = x; then
866 case "${target}" in
867 *-*-darwin*)
868 # PR 46986
869 noconfigdirs="$noconfigdirs target-libgo"
870 ;;
871 *-*-cygwin* | *-*-mingw*)
872 noconfigdirs="$noconfigdirs target-libgo"
873 ;;
874 bpf-*-*)
875 noconfigdirs="$noconfigdirs target-libgo"
876 ;;
877 esac
878 fi
880 # Default libgloss CPU subdirectory.
881 libgloss_dir="$target_cpu"
883 case "${target}" in
884 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
885 libgloss_dir=wince
886 ;;
887 aarch64*-*-* )
888 libgloss_dir=aarch64
889 ;;
890 arm*-*-*)
891 libgloss_dir=arm
892 ;;
893 cris-*-* | crisv32-*-*)
894 libgloss_dir=cris
895 ;;
896 kvx-*-elf)
897 libgloss_dir=kvx-elf
898 ;;
899 kvx-*-mbr)
900 libgloss_dir=kvx-mbr
901 ;;
902 kvx-*-cos)
903 libgloss_dir=kvx-cos
904 ;;
905 hppa*-*-*)
906 libgloss_dir=pa
907 ;;
908 i[[3456789]]86-*-*)
909 libgloss_dir=i386
910 ;;
911 loongarch*-*-*)
912 libgloss_dir=loongarch
913 ;;
914 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
915 libgloss_dir=m68hc11
916 ;;
917 m68*-*-* | fido-*-*)
918 libgloss_dir=m68k
919 ;;
920 mips*-*-*)
921 libgloss_dir=mips
922 ;;
923 powerpc*-*-*)
924 libgloss_dir=rs6000
925 ;;
926 pru-*-*)
927 libgloss_dir=pru
928 ;;
929 sparc*-*-*)
930 libgloss_dir=sparc
931 ;;
932 esac
934 # Disable newlib and libgloss for various target OSes.
935 case "${target}" in
936 alpha*-dec-osf*)
937 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
938 ;;
939 i[[3456789]]86-*-linux*)
940 # This section makes it possible to build newlib natively on linux.
941 # If we are using a cross compiler then don't configure newlib.
942 if test x${is_cross_compiler} != xno ; then
943 noconfigdirs="$noconfigdirs target-newlib"
944 fi
945 noconfigdirs="$noconfigdirs target-libgloss"
946 # If we are not using a cross compiler, do configure newlib.
947 # Note however, that newlib will only be configured in this situation
948 # if the --with-newlib option has been given, because otherwise
949 # 'target-newlib' will appear in skipdirs.
950 ;;
951 i[[3456789]]86-*-rdos*)
952 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
953 ;;
954 sh*-*-pe|mips*-*-pe|arm-wince-pe)
955 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
956 ;;
957 sparc-*-sunos4*)
958 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
959 ;;
960 bpf-*-*)
961 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
962 ;;
963 *-*-aix*)
964 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
965 ;;
966 *-*-beos*)
967 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
968 ;;
969 *-*-chorusos)
970 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
971 ;;
972 *-*-dragonfly*)
973 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
974 ;;
975 *-*-freebsd*)
976 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
977 ;;
978 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
979 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
980 ;;
981 *-*-lynxos*)
982 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
983 ;;
984 *-*-mingw*)
985 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
986 ;;
987 *-*-netbsd*)
988 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
989 ;;
990 *-*-netware*)
991 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
992 ;;
993 *-*-tpf*)
994 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
995 ;;
996 *-*-uclinux*)
997 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
998 ;;
999 *-*-vxworks*)
1000 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1001 ;;
1002 esac
1004 # The ARM simulator has been deprecated for all ARM targets.
1005 case "${target}" in
1006 arm*-*-*)
1007 noconfigdirs="$noconfigdirs sim"
1008 ;;
1009 esac
1011 case "${target}" in
1012 *-*-chorusos)
1013 ;;
1014 aarch64-*-darwin*)
1015 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1016 noconfigdirs="$noconfigdirs sim target-rda"
1017 ;;
1018 amdgcn*-*-*)
1019 ;;
1020 arm-*-darwin*)
1021 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1022 noconfigdirs="$noconfigdirs target-rda"
1023 ;;
1024 powerpc-*-darwin*)
1025 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1026 noconfigdirs="$noconfigdirs sim target-rda"
1027 ;;
1028 i[[3456789]]86-*-darwin*)
1029 noconfigdirs="$noconfigdirs ld gprof"
1030 noconfigdirs="$noconfigdirs sim target-rda"
1031 ;;
1032 x86_64-*-darwin[[912]]*)
1033 noconfigdirs="$noconfigdirs ld gas gprof"
1034 noconfigdirs="$noconfigdirs sim target-rda"
1035 ;;
1036 *-*-darwin*)
1037 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1038 noconfigdirs="$noconfigdirs sim target-rda"
1039 ;;
1040 *-*-dragonfly*)
1041 ;;
1042 *-*-freebsd*)
1043 if test "x$with_gmp" = x \
1044 && ! test -d ${srcdir}/gmp \
1045 && test -f /usr/local/include/gmp.h; then
1046 with_gmp=/usr/local
1047 fi
1048 ;;
1049 *-*-kaos*)
1050 # Remove unsupported stuff on all kaOS configurations.
1051 noconfigdirs="$noconfigdirs target-libgloss"
1052 ;;
1053 *-*-netbsd*)
1054 ;;
1055 *-*-netware*)
1056 ;;
1057 *-*-phoenix*)
1058 noconfigdirs="$noconfigdirs target-libgloss"
1059 ;;
1060 *-*-rtems*)
1061 noconfigdirs="$noconfigdirs target-libgloss"
1062 ;;
1063 # The tpf target doesn't support gdb yet.
1064 *-*-tpf*)
1065 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
1066 ;;
1067 *-*-uclinux*)
1068 noconfigdirs="$noconfigdirs target-rda"
1069 ;;
1070 *-*-vxworks*)
1071 ;;
1072 alpha*-dec-osf*)
1073 # ld works, but does not support shared libraries.
1074 # gas doesn't generate exception information.
1075 noconfigdirs="$noconfigdirs gas ld"
1076 ;;
1077 alpha*-*-*vms*)
1078 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1079 ;;
1080 alpha*-*-*)
1081 # newlib is not 64 bit ready
1082 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1083 ;;
1084 bpf-*-*)
1085 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1086 ;;
1087 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1088 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1089 ;;
1090 arc*-*-*)
1091 noconfigdirs="$noconfigdirs sim"
1092 ;;
1093 arm-*-pe*)
1094 noconfigdirs="$noconfigdirs target-libgloss"
1095 ;;
1096 arm-*-riscix*)
1097 noconfigdirs="$noconfigdirs ld target-libgloss"
1098 ;;
1099 avr-*-*)
1100 if test x${with_avrlibc} != xno; then
1101 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1102 fi
1103 ;;
1104 c4x-*-* | tic4x-*-*)
1105 noconfigdirs="$noconfigdirs target-libgloss"
1106 ;;
1107 tic54x-*-*)
1108 noconfigdirs="$noconfigdirs target-libgloss gdb"
1109 ;;
1110 d10v-*-*)
1111 noconfigdirs="$noconfigdirs target-libgloss"
1112 ;;
1113 d30v-*-*)
1114 noconfigdirs="$noconfigdirs gdb"
1115 ;;
1116 fr30-*-elf*)
1117 noconfigdirs="$noconfigdirs gdb"
1118 ;;
1119 ft32-*-*)
1120 noconfigdirs="$noconfigdirs target-rda gprof"
1121 ;;
1122 moxie-*-*)
1123 noconfigdirs="$noconfigdirs"
1124 ;;
1125 h8300*-*-*)
1126 noconfigdirs="$noconfigdirs target-libgloss"
1127 ;;
1128 h8500-*-*)
1129 noconfigdirs="$noconfigdirs target-libgloss"
1130 ;;
1131 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1132 ;;
1133 hppa*64*-*-hpux*)
1134 noconfigdirs="$noconfigdirs gdb"
1135 ;;
1136 hppa*-*-hpux11*)
1137 noconfigdirs="$noconfigdirs gdb ld"
1138 ;;
1139 hppa*64*-*-linux*)
1140 ;;
1141 hppa*-*-linux*)
1142 ;;
1143 hppa*-*-*elf* | \
1144 hppa*-*-lites* | \
1145 hppa*-*-openbsd* | \
1146 hppa*64*-*-*)
1147 ;;
1148 hppa*-*-pro*)
1149 ;;
1150 hppa*-*-*)
1151 noconfigdirs="$noconfigdirs ld"
1152 ;;
1153 i960-*-*)
1154 noconfigdirs="$noconfigdirs gdb"
1155 ;;
1156 ia64*-*-elf*)
1157 # No gdb support yet.
1158 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1159 ;;
1160 ia64*-**-hpux*)
1161 # No ld support yet.
1162 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1163 ;;
1164 ia64*-*-*vms*)
1165 # No ld support yet.
1166 noconfigdirs="$noconfigdirs libgui itcl ld"
1167 ;;
1168 i[[3456789]]86-w64-mingw*)
1169 ;;
1170 i[[3456789]]86-*-mingw*)
1171 target_configdirs="$target_configdirs target-winsup"
1172 ;;
1173 *-*-cygwin*)
1174 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1175 noconfigdirs="$noconfigdirs target-libgloss"
1176 # always build newlib if winsup directory is present.
1177 if test -d "$srcdir/winsup/cygwin"; then
1178 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1179 elif test -d "$srcdir/newlib"; then
1180 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1181 fi
1182 ;;
1183 i[[3456789]]86-*-pe)
1184 noconfigdirs="$noconfigdirs target-libgloss"
1185 ;;
1186 i[[3456789]]86-*-sco3.2v5*)
1187 # The linker does not yet know about weak symbols in COFF,
1188 # and is not configured to handle mixed ELF and COFF.
1189 noconfigdirs="$noconfigdirs ld target-libgloss"
1190 ;;
1191 i[[3456789]]86-*-sco*)
1192 noconfigdirs="$noconfigdirs gprof target-libgloss"
1193 ;;
1194 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1195 noconfigdirs="$noconfigdirs target-libgloss"
1196 ;;
1197 i[[3456789]]86-*-sysv4*)
1198 noconfigdirs="$noconfigdirs target-libgloss"
1199 ;;
1200 i[[3456789]]86-*-beos*)
1201 noconfigdirs="$noconfigdirs gdb"
1202 ;;
1203 i[[3456789]]86-*-rdos*)
1204 noconfigdirs="$noconfigdirs gdb"
1205 ;;
1206 kvx-*-*)
1207 noconfigdirs="$noconfigdirs gdb gdbserver sim"
1208 ;;
1209 mmix-*-*)
1210 noconfigdirs="$noconfigdirs gdb"
1211 ;;
1212 mt-*-*)
1213 noconfigdirs="$noconfigdirs sim"
1214 ;;
1215 nfp-*-*)
1216 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1217 noconfigdirs="$noconfigdirs $target_libraries"
1218 ;;
1219 pdp11-*-*)
1220 noconfigdirs="$noconfigdirs gdb gprof"
1221 ;;
1222 powerpc-*-aix*)
1223 # copied from rs6000-*-* entry
1224 noconfigdirs="$noconfigdirs gprof"
1225 ;;
1226 powerpc*-*-winnt* | powerpc*-*-pe*)
1227 target_configdirs="$target_configdirs target-winsup"
1228 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1229 # always build newlib.
1230 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1231 ;;
1232 # This is temporary until we can link against shared libraries
1233 powerpcle-*-solaris*)
1234 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1235 ;;
1236 powerpc-*-beos*)
1237 noconfigdirs="$noconfigdirs gdb"
1238 ;;
1239 rs6000-*-lynxos*)
1240 noconfigdirs="$noconfigdirs gprof"
1241 ;;
1242 rs6000-*-aix*)
1243 noconfigdirs="$noconfigdirs gprof"
1244 ;;
1245 rs6000-*-*)
1246 noconfigdirs="$noconfigdirs gprof"
1247 ;;
1248 m68k-apollo-*)
1249 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1250 ;;
1251 microblaze*)
1252 noconfigdirs="$noconfigdirs gprof"
1253 ;;
1254 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1255 if test x$with_newlib = xyes; then
1256 noconfigdirs="$noconfigdirs gprof"
1257 fi
1258 ;;
1259 mips*-*-irix5*)
1260 noconfigdirs="$noconfigdirs gprof target-libgloss"
1261 ;;
1262 mips*-*-irix6*)
1263 noconfigdirs="$noconfigdirs gprof target-libgloss"
1264 ;;
1265 mips*-*-bsd*)
1266 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1267 ;;
1268 mips*-*-linux*)
1269 ;;
1270 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1271 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1272 noconfigdirs="$noconfigdirs ld gas gprof"
1273 ;;
1274 mips*-*-*)
1275 noconfigdirs="$noconfigdirs gprof"
1276 ;;
1277 nvptx*-*-*)
1278 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1279 ;;
1280 sh-*-*)
1281 case "${target}" in
1282 sh*-*-elf)
1283 ;;
1284 *)
1285 noconfigdirs="$noconfigdirs target-libgloss" ;;
1286 esac
1287 ;;
1288 sparc-*-sunos4*)
1289 if test x${is_cross_compiler} = xno ; then
1290 use_gnu_ld=no
1291 fi
1292 ;;
1293 tic6x-*-*)
1294 noconfigdirs="$noconfigdirs sim"
1295 ;;
1296 tilepro*-*-* | tilegx*-*-*)
1297 noconfigdirs="$noconfigdirs sim"
1298 ;;
1299 v810-*-*)
1300 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1301 ;;
1302 vax-*-*)
1303 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1304 ;;
1305 wasm32-*-*)
1306 noconfigdirs="$noconfigdirs ld"
1307 ;;
1308 loongarch*-*-linux*)
1309 ;;
1310 loongarch*-*-*)
1311 noconfigdirs="$noconfigdirs gprof"
1312 ;;
1313 esac
1315 # If we aren't building newlib, then don't build libgloss, since libgloss
1316 # depends upon some newlib header files.
1317 case "${noconfigdirs}" in
1318 *target-libgloss*) ;;
1319 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1320 esac
1322 # Work in distributions that contain no compiler tools, like Autoconf.
1323 host_makefile_frag=/dev/null
1324 if test -d ${srcdir}/config ; then
1325 case "${host}" in
1326 i[[3456789]]86-*-msdosdjgpp*)
1327 host_makefile_frag="config/mh-djgpp"
1328 ;;
1329 *-cygwin*)
1330 ACX_CHECK_CYGWIN_CAT_WORKS
1331 host_makefile_frag="config/mh-cygwin"
1332 ;;
1333 *-mingw*)
1334 host_makefile_frag="config/mh-mingw"
1335 ;;
1336 alpha*-linux*)
1337 host_makefile_frag="config/mh-alpha-linux"
1338 ;;
1339 hppa*-hp-hpux*)
1340 host_makefile_frag="config/mh-pa"
1341 ;;
1342 hppa*-*)
1343 host_makefile_frag="config/mh-pa"
1344 ;;
1345 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
1346 host_makefile_frag="config/mh-darwin"
1347 ;;
1348 powerpc-*-aix*)
1349 host_makefile_frag="config/mh-ppc-aix"
1350 ;;
1351 rs6000-*-aix*)
1352 host_makefile_frag="config/mh-ppc-aix"
1353 ;;
1354 esac
1355 fi
1357 if test "${build}" != "${host}" ; then
1358 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1359 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1360 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1361 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
1362 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1363 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
1364 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1365 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1366 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1367 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1368 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1369 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1370 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1371 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1372 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1373 else
1374 AR_FOR_BUILD="\$(AR)"
1375 AS_FOR_BUILD="\$(AS)"
1376 CC_FOR_BUILD="\$(CC)"
1377 CXX_FOR_BUILD="\$(CXX)"
1378 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
1379 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1380 GOC_FOR_BUILD="\$(GOC)"
1381 GDC_FOR_BUILD="\$(GDC)"
1382 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1383 LD_FOR_BUILD="\$(LD)"
1384 NM_FOR_BUILD="\$(NM)"
1385 RANLIB_FOR_BUILD="\$(RANLIB)"
1386 WINDRES_FOR_BUILD="\$(WINDRES)"
1387 WINDMC_FOR_BUILD="\$(WINDMC)"
1388 fi
1390 AC_PROG_CC_C99
1391 AC_PROG_CXX
1393 # We must set the default linker to the linker used by gcc for the correct
1394 # operation of libtool. If LD is not defined and we are using gcc, try to
1395 # set the LD default to the ld used by gcc.
1396 if test -z "$LD"; then
1397 if test "$GCC" = yes; then
1398 case $build in
1399 *-*-mingw*)
1400 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1401 *)
1402 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1403 esac
1404 case $gcc_prog_ld in
1405 # Accept absolute paths.
1406 [[\\/]* | [A-Za-z]:[\\/]*)]
1407 LD="$gcc_prog_ld" ;;
1408 esac
1409 fi
1410 fi
1412 # Check whether -static-libstdc++ -static-libgcc is supported.
1413 have_static_libs=no
1414 if test "$GCC" = yes; then
1415 saved_LDFLAGS="$LDFLAGS"
1417 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1418 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1419 AC_LANG_PUSH(C++)
1420 AC_LINK_IFELSE([AC_LANG_SOURCE([
1421 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1422 #error -static-libstdc++ not implemented
1423 #endif
1424 int main() {}])],
1425 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1426 [AC_MSG_RESULT([no])])
1427 AC_LANG_POP(C++)
1429 LDFLAGS="$saved_LDFLAGS"
1430 fi
1432 ACX_PROG_GNAT
1433 ACX_PROG_GDC
1434 ACX_PROG_CARGO
1435 ACX_PROG_CMP_IGNORE_INITIAL
1437 AC_ARG_ENABLE([bootstrap],
1438 [AS_HELP_STRING([--enable-bootstrap],
1439 [enable bootstrapping @<:@yes if native build@:>@])],,
1440 enable_bootstrap=default)
1442 # Issue errors and warnings for invalid/strange bootstrap combinations.
1443 if test -r $srcdir/gcc/configure; then
1444 have_compiler=yes
1445 else
1446 have_compiler=no
1447 fi
1449 case "$have_compiler:$host:$target:$enable_bootstrap" in
1450 *:*:*:no) ;;
1452 # Default behavior. Enable bootstrap if we have a compiler
1453 # and we are in a native configuration.
1454 yes:$build:$build:default)
1455 enable_bootstrap=yes ;;
1457 *:*:*:default)
1458 enable_bootstrap=no ;;
1460 # We have a compiler and we are in a native configuration, bootstrap is ok
1461 yes:$build:$build:yes)
1462 ;;
1464 # Other configurations, but we have a compiler. Assume the user knows
1465 # what he's doing.
1466 yes:*:*:yes)
1467 AC_MSG_WARN([trying to bootstrap a cross compiler])
1468 ;;
1470 # No compiler: if they passed --enable-bootstrap explicitly, fail
1471 no:*:*:yes)
1472 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1474 # Fail if wrong command line
1475 *)
1476 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1477 ;;
1478 esac
1480 # When bootstrapping with GCC, build stage 1 in C++14 mode to ensure that a
1481 # C++14 compiler can still start the bootstrap. Otherwise, if building GCC,
1482 # require C++14 (or higher).
1483 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1484 CXX="$CXX -std=c++14"
1485 elif test "$have_compiler" = yes; then
1486 AX_CXX_COMPILE_STDCXX(14)
1488 if test "${build}" != "${host}"; then
1489 AX_CXX_COMPILE_STDCXX(14, [], [], [_FOR_BUILD])
1490 fi
1491 fi
1493 AC_ARG_ENABLE([pgo-build],
1494 [AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1495 [enable the PGO build])],
1496 [enable_pgo_build=$enableval],
1497 [enable_pgo_build=no])
1499 # Issue errors and warnings for invalid/strange PGO build combinations.
1500 case "$have_compiler:$host:$target:$enable_pgo_build" in
1501 *:*:*:no) ;;
1503 # Allow the PGO build only if we aren't building a compiler and
1504 # we are in a native configuration.
1505 no:$build:$build:yes | no:$build:$build:lto) ;;
1507 # Disallow the PGO bootstrap if we are building a compiler.
1508 yes:*:*:yes | yes:*:*:lto)
1509 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1511 *)
1512 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1513 ;;
1514 esac
1516 if test "$enable_pgo_build" != "no"; then
1517 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1518 old_CFLAGS="$CFLAGS"
1519 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1520 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1521 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1522 [PGO_BUILD_GEN_CFLAGS=])
1523 CFLAGS="$old_CFLAGS"
1524 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1525 AC_MSG_RESULT([yes])
1526 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1527 else
1528 AC_MSG_RESULT([no])
1529 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1530 fi
1532 if test "$enable_pgo_build" = "lto"; then
1533 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1534 old_CFLAGS="$CFLAGS"
1535 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1536 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1537 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1538 [PGO_BUILD_LTO_CFLAGS=])
1539 CFLAGS="$old_CFLAGS"
1540 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1541 AC_MSG_RESULT([yes])
1542 else
1543 AC_MSG_RESULT([no])
1544 AC_MSG_WARN([LTO is disabled for the PGO build])
1545 fi
1546 fi
1547 fi
1548 AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1549 AC_SUBST(PGO_BUILD_USE_CFLAGS)
1550 AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1552 # Used for setting $lt_cv_objdir
1553 _LT_CHECK_OBJDIR
1555 # Check for GMP, MPFR and MPC
1556 require_gmp=no
1557 require_mpc=no
1558 if test -d ${srcdir}/gcc ; then
1559 require_gmp=yes
1560 require_mpc=yes
1561 fi
1562 if test -d ${srcdir}/gdb ; then
1563 if test "x$enable_gdb" != xno; then
1564 require_gmp=yes
1565 fi
1566 fi
1568 gmplibs="-lmpfr -lgmp"
1569 if test x"$require_mpc" = "xyes" ; then
1570 gmplibs="-lmpc $gmplibs"
1571 fi
1572 gmpinc=
1573 have_gmp=no
1575 # Specify a location for mpc
1576 # check for this first so it ends up on the link line before mpfr.
1577 AC_ARG_WITH(mpc,
1578 [AS_HELP_STRING([--with-mpc=PATH],
1579 [specify prefix directory for installed MPC package.
1580 Equivalent to --with-mpc-include=PATH/include
1581 plus --with-mpc-lib=PATH/lib])])
1582 AC_ARG_WITH(mpc-include,
1583 [AS_HELP_STRING([--with-mpc-include=PATH],
1584 [specify directory for installed MPC include files])])
1585 AC_ARG_WITH(mpc-lib,
1586 [AS_HELP_STRING([--with-mpc-lib=PATH],
1587 [specify directory for the installed MPC library])])
1589 if test "x$with_mpc" != x; then
1590 gmplibs="-L$with_mpc/lib $gmplibs"
1591 gmpinc="-I$with_mpc/include $gmpinc"
1592 fi
1593 if test "x$with_mpc_include" != x; then
1594 gmpinc="-I$with_mpc_include $gmpinc"
1595 fi
1596 if test "x$with_mpc_lib" != x; then
1597 gmplibs="-L$with_mpc_lib $gmplibs"
1598 fi
1599 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1600 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1601 gmpinc='-I$$s/mpc/src '"$gmpinc"
1602 # Do not test the mpc version. Assume that it is sufficient, since
1603 # it is in the source tree, and the library has not been built yet
1604 # but it would be included on the link line in the version check below
1605 # hence making the test fail.
1606 have_gmp=yes
1607 fi
1609 # Specify a location for mpfr
1610 # check for this first so it ends up on the link line before gmp.
1611 AC_ARG_WITH(mpfr,
1612 [AS_HELP_STRING([--with-mpfr=PATH],
1613 [specify prefix directory for installed MPFR package.
1614 Equivalent to --with-mpfr-include=PATH/include
1615 plus --with-mpfr-lib=PATH/lib])])
1616 AC_ARG_WITH(mpfr-include,
1617 [AS_HELP_STRING([--with-mpfr-include=PATH],
1618 [specify directory for installed MPFR include files])])
1619 AC_ARG_WITH(mpfr-lib,
1620 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1621 [specify directory for the installed MPFR library])])
1623 if test "x$with_mpfr" != x; then
1624 gmplibs="-L$with_mpfr/lib $gmplibs"
1625 gmpinc="-I$with_mpfr/include $gmpinc"
1626 fi
1627 if test "x$with_mpfr_include" != x; then
1628 gmpinc="-I$with_mpfr_include $gmpinc"
1629 fi
1630 if test "x$with_mpfr_lib" != x; then
1631 gmplibs="-L$with_mpfr_lib $gmplibs"
1632 fi
1633 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1634 # MPFR v3.1.0 moved the sources into a src sub-directory.
1635 if ! test -d ${srcdir}/mpfr/src; then
1636 AC_MSG_ERROR([dnl
1637 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1638 fi
1639 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1640 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1641 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1642 # Do not test the mpfr version. Assume that it is sufficient, since
1643 # it is in the source tree, and the library has not been built yet
1644 # but it would be included on the link line in the version check below
1645 # hence making the test fail.
1646 have_gmp=yes
1647 fi
1649 # Specify a location for gmp
1650 AC_ARG_WITH(gmp,
1651 [AS_HELP_STRING([--with-gmp=PATH],
1652 [specify prefix directory for the installed GMP package.
1653 Equivalent to --with-gmp-include=PATH/include
1654 plus --with-gmp-lib=PATH/lib])])
1655 AC_ARG_WITH(gmp-include,
1656 [AS_HELP_STRING([--with-gmp-include=PATH],
1657 [specify directory for installed GMP include files])])
1658 AC_ARG_WITH(gmp-lib,
1659 [AS_HELP_STRING([--with-gmp-lib=PATH],
1660 [specify directory for the installed GMP library])])
1663 if test "x$with_gmp" != x; then
1664 gmplibs="-L$with_gmp/lib $gmplibs"
1665 gmpinc="-I$with_gmp/include $gmpinc"
1666 fi
1667 if test "x$with_gmp_include" != x; then
1668 gmpinc="-I$with_gmp_include $gmpinc"
1669 fi
1670 if test "x$with_gmp_lib" != x; then
1671 gmplibs="-L$with_gmp_lib $gmplibs"
1672 fi
1673 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1674 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1675 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1676 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1677 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1678 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1679 # Do not test the gmp version. Assume that it is sufficient, since
1680 # it is in the source tree, and the library has not been built yet
1681 # but it would be included on the link line in the version check below
1682 # hence making the test fail.
1683 have_gmp=yes
1684 fi
1686 if test "x$require_gmp" = xyes && test "x$have_gmp" = xno; then
1687 have_gmp=yes
1688 saved_CFLAGS="$CFLAGS"
1689 CFLAGS="$CFLAGS $gmpinc"
1690 # Check for the recommended and required versions of GMP.
1691 AC_MSG_CHECKING([for the correct version of gmp.h])
1692 AC_TRY_COMPILE([#include "gmp.h"],[
1693 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1694 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1695 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1696 choke me
1697 #endif
1698 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1699 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1700 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1701 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1702 choke me
1703 #endif
1704 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1705 [AC_MSG_RESULT([no]); have_gmp=no])
1707 # If we have GMP, check the MPFR version.
1708 if test x"$have_gmp" = xyes; then
1709 # Check for the recommended and required versions of MPFR.
1710 AC_MSG_CHECKING([for the correct version of mpfr.h])
1711 AC_TRY_COMPILE([#include <gmp.h>
1712 #include <mpfr.h>],[
1713 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
1714 choke me
1715 #endif
1716 ], [AC_TRY_COMPILE([#include <gmp.h>
1717 #include <mpfr.h>],[
1718 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
1719 choke me
1720 #endif
1721 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1722 [AC_MSG_RESULT([no]); have_gmp=no])
1723 fi
1725 # Check for the MPC header version.
1726 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes ; then
1727 # Check for the recommended and required versions of MPC.
1728 AC_MSG_CHECKING([for the correct version of mpc.h])
1729 AC_TRY_COMPILE([#include <mpc.h>],[
1730 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1731 choke me
1732 #endif
1733 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1734 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1735 choke me
1736 #endif
1737 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1738 [AC_MSG_RESULT([no]); have_gmp=no])
1739 fi
1741 # Now check the MPFR library.
1742 if test x"$have_gmp" = xyes; then
1743 saved_LIBS="$LIBS"
1744 LIBS="$LIBS $gmplibs"
1745 AC_MSG_CHECKING([for the correct version of the gmp/mpfr libraries])
1746 AC_TRY_LINK([#include <mpfr.h>],[
1747 mpfr_t n;
1748 mpfr_t x;
1749 int t;
1750 mpfr_init (n);
1751 mpfr_init (x);
1752 mpfr_atan2 (n, n, x, MPFR_RNDN);
1753 mpfr_erfc (n, x, MPFR_RNDN);
1754 mpfr_subnormalize (x, t, MPFR_RNDN);
1755 mpfr_clear(n);
1756 mpfr_clear(x);
1757 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1758 LIBS="$saved_LIBS"
1759 fi
1761 # Now check the MPC library
1762 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes; then
1763 saved_LIBS="$LIBS"
1764 LIBS="$LIBS $gmplibs"
1765 AC_MSG_CHECKING([for the correct version of the mpc libraries])
1766 AC_TRY_LINK([#include <mpc.h>],[
1767 mpc_t c;
1768 mpc_init2 (c, 53);
1769 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1770 mpc_cosh (c, c, MPC_RNDNN);
1771 mpc_pow (c, c, c, MPC_RNDNN);
1772 mpc_acosh (c, c, MPC_RNDNN);
1773 mpc_clear (c);
1774 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1775 LIBS="$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 if test -d ${srcdir}/gcc ; then
1784 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
1785 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1786 their locations. Source code for these libraries can be found at
1787 their respective hosting sites as well as at
1788 https://gcc.gnu.org/pub/gcc/infrastructure/. See also
1789 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1790 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1791 make sure that you have installed both the libraries and the header
1792 files. They may be located in separate packages.])
1793 else
1794 AC_MSG_ERROR([Building GDB requires GMP 4.2+, and MPFR 3.1.0+.
1795 Try the --with-gmp and/or --with-mpfr options to specify
1796 their locations. If you obtained GMP and/or MPFR from a vendor
1797 distribution package, make sure that you have installed both the libraries
1798 and the header files. They may be located in separate packages.])
1799 fi
1800 fi
1801 fi
1803 # Flags needed for both GMP, MPFR and/or MPC.
1804 AC_SUBST(gmplibs)
1805 AC_SUBST(gmpinc)
1806 AC_SUBST(extra_mpfr_configure_flags)
1807 AC_SUBST(extra_mpc_gmp_configure_flags)
1808 AC_SUBST(extra_mpc_mpfr_configure_flags)
1809 AC_SUBST(extra_isl_gmp_configure_flags)
1811 # Libraries to use for stage1 or when not bootstrapping.
1812 AC_ARG_WITH(stage1-libs,
1813 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1814 [if test "$withval" = "no" -o "$withval" = "yes"; then
1815 stage1_libs=
1816 else
1817 stage1_libs=$withval
1818 fi],
1819 [stage1_libs=])
1820 AC_SUBST(stage1_libs)
1822 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1823 # default is yes if gcc is being built; no otherwise. The reason for
1824 # this default is that gdb is sometimes linked against GNU Source
1825 # Highlight, which is a shared library that uses C++ exceptions. In
1826 # this case, -static-libstdc++ will cause crashes.
1827 AC_ARG_WITH(static-standard-libraries,
1828 [AS_HELP_STRING([--with-static-standard-libraries],
1829 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1830 [], [with_static_standard_libraries=auto])
1831 if test "$with_static_standard_libraries" = auto; then
1832 with_static_standard_libraries=$have_compiler
1833 fi
1835 # Linker flags to use for stage1 or when not bootstrapping.
1836 AC_ARG_WITH(stage1-ldflags,
1837 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1838 [if test "$withval" = "no" -o "$withval" = "yes"; then
1839 stage1_ldflags=
1840 else
1841 stage1_ldflags=$withval
1842 fi],
1843 [stage1_ldflags=
1844 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1845 # if supported. But if the user explicitly specified the libraries to use,
1846 # trust that they are doing what they want.
1847 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1848 -a "$have_static_libs" = yes; then
1849 stage1_ldflags="-static-libstdc++ -static-libgcc"
1850 fi])
1851 AC_SUBST(stage1_ldflags)
1853 # Libraries to use for stage2 and later builds.
1854 AC_ARG_WITH(boot-libs,
1855 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1856 [if test "$withval" = "no" -o "$withval" = "yes"; then
1857 poststage1_libs=
1858 else
1859 poststage1_libs=$withval
1860 fi],
1861 [poststage1_libs=])
1862 AC_SUBST(poststage1_libs)
1864 # Linker flags to use for stage2 and later builds.
1865 AC_ARG_WITH(boot-ldflags,
1866 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1867 [linker flags for stage2 and later])],
1868 [if test "$withval" = "no" -o "$withval" = "yes"; then
1869 poststage1_ldflags=
1870 else
1871 poststage1_ldflags=$withval
1872 fi],
1873 [poststage1_ldflags=
1874 # In stages 2 and 3, default to linking libstdc++ and libgcc
1875 # statically. But if the user explicitly specified the libraries to
1876 # use, trust that they are doing what they want.
1877 if test "$poststage1_libs" = ""; then
1878 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1879 fi])
1880 case $target in
1881 *-darwin2* | *-darwin1[[56789]]*)
1882 # For these versions, we default to using embedded rpaths.
1883 if test "x$enable_darwin_at_rpath" != "xno"; then
1884 poststage1_ldflags="$poststage1_ldflags -nodefaultrpaths"
1885 fi
1886 ;;
1887 *-darwin*)
1888 # For these versions, we only use embedded rpaths on demand.
1889 if test "x$enable_darwin_at_rpath" = "xyes"; then
1890 poststage1_ldflags="$poststage1_ldflags -nodefaultrpaths"
1891 fi
1892 ;;
1893 esac
1894 AC_SUBST(poststage1_ldflags)
1896 # GCC GRAPHITE dependency isl.
1897 # Basic setup is inlined here, actual checks are in config/isl.m4
1899 AC_ARG_WITH(isl,
1900 [AS_HELP_STRING(
1901 [--with-isl=PATH],
1902 [Specify prefix directory for the installed isl package.
1903 Equivalent to --with-isl-include=PATH/include
1904 plus --with-isl-lib=PATH/lib])])
1906 # Treat --without-isl as a request to disable
1907 # GRAPHITE support and skip all following checks.
1908 if test "x$with_isl" != "xno"; then
1909 # Check for isl
1910 dnl Provide configure switches and initialize islinc & isllibs
1911 dnl with user input.
1912 ISL_INIT_FLAGS
1913 dnl The versions of isl that work for Graphite
1914 ISL_CHECK_VERSION()
1915 dnl Only execute fail-action, if isl has been requested.
1916 ISL_IF_FAILED([
1917 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1918 fi
1920 # If the isl check failed, disable builds of in-tree variant of isl
1921 if test "x$with_isl" = xno ||
1922 test "x$gcc_cv_isl" = xno; then
1923 noconfigdirs="$noconfigdirs isl"
1924 islinc=
1925 fi
1927 AC_SUBST(isllibs)
1928 AC_SUBST(islinc)
1930 # Check for LTO support.
1931 AC_ARG_ENABLE(lto,
1932 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1933 enable_lto=$enableval,
1934 enable_lto=yes; default_enable_lto=yes)
1936 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1937 build_lto_plugin=yes
1938 ],[if test x"$default_enable_lto" = x"yes" ; then
1939 case $target in
1940 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1941 # On other non-ELF platforms, LTO has yet to be validated.
1942 *) enable_lto=no ;;
1943 esac
1944 else
1945 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1946 # It would also be nice to check the binutils support, but we don't
1947 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1948 # warn during gcc/ subconfigure; unless you're bootstrapping with
1949 # -flto it won't be needed until after installation anyway.
1950 case $target in
1951 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1952 *) if test x"$enable_lto" = x"yes"; then
1953 AC_MSG_ERROR([LTO support is not enabled for this target.])
1954 fi
1955 ;;
1956 esac
1957 fi
1958 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1959 # Build it unless LTO was explicitly disabled.
1960 case $target in
1961 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1962 *) ;;
1963 esac
1964 ])
1966 AC_ARG_ENABLE(linker-plugin-configure-flags,
1967 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1968 [additional flags for configuring linker plugins @<:@none@:>@])],
1969 extra_linker_plugin_configure_flags=$enableval,
1970 extra_linker_plugin_configure_flags=)
1971 AC_SUBST(extra_linker_plugin_configure_flags)
1972 AC_ARG_ENABLE(linker-plugin-flags,
1973 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1974 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1975 extra_linker_plugin_flags=$enableval,
1976 extra_linker_plugin_flags=)
1977 AC_SUBST(extra_linker_plugin_flags)
1979 # Handle --enable-host-pie
1980 # If host PIE executables are the default (or must be forced on) for some host,
1981 # we must pass that configuration to the gcc directory.
1982 gcc_host_pie=
1983 AC_ARG_ENABLE(host-pie,
1984 [AS_HELP_STRING([--enable-host-pie],
1985 [build position independent host executables])],
1986 [host_pie=$enableval
1987 case $host in
1988 *-*-darwin2*)
1989 if test x$host_pie != xyes ; then
1990 # for Darwin20+ this is required.
1991 AC_MSG_WARN([PIE executables are required for the configured host, host-pie setting ignored.])
1992 host_pie=yes
1993 gcc_host_pie=--enable-host-pie
1994 fi ;;
1995 *) ;;
1996 esac],
1997 [case $host in
1998 *-*-darwin2*)
1999 # Default to PIE (mandatory for aarch64).
2000 host_pie=yes
2001 gcc_host_pie=--enable-host-pie
2002 ;;
2003 *) host_pie=no ;;
2004 esac])
2006 AC_SUBST(host_pie)
2007 AC_SUBST(gcc_host_pie)
2009 # Enable --enable-host-shared.
2010 # Checked early to determine whether jit is an 'all' language
2011 AC_ARG_ENABLE(host-shared,
2012 [AS_HELP_STRING([--enable-host-shared],
2013 [build host code as shared libraries])],
2014 [host_shared=$enableval
2015 case $host in
2016 x86_64-*-darwin* | aarch64-*-darwin*)
2017 if test x$host_shared != xyes ; then
2018 # PIC is the default, and actually cannot be switched off.
2019 AC_MSG_WARN([PIC code is required for the configured host; host-shared setting ignored.])
2020 host_shared=yes
2021 fi ;;
2022 *-*-darwin*)
2023 if test x$host_pie = xyes -a x$host_shared != xyes ; then
2024 AC_MSG_WARN([PIC code is required for PIE host executables host-shared setting ignored.])
2025 host_shared=yes
2026 fi ;;
2027 *) ;;
2028 esac],
2029 [case $host in
2030 # 64B x86_64 and Aarch64 Darwin default to PIC.
2031 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
2032 # 32B and powerpc64 Darwin must use PIC to link PIE exes.
2033 *-*-darwin*) host_shared=$host_pie ;;
2034 *) host_shared=no;;
2035 esac])
2037 AC_SUBST(host_shared)
2039 if test x$host_shared = xyes; then
2040 case $host in
2041 *-*-darwin*)
2042 # Since host shared is the default for 64b Darwin, and also enabled for
2043 # host_pie, ensure that we present the PIE flag when host_pie is active.
2044 if test x$host_pie = xyes; then
2045 PICFLAG=-fPIE
2046 fi
2047 ;;
2048 *)
2049 PICFLAG=-fPIC
2050 ;;
2051 esac
2052 elif test x$host_pie = xyes; then
2053 PICFLAG=-fPIE
2054 else
2055 PICFLAG=
2056 fi
2058 AC_SUBST(PICFLAG)
2061 # Check for libgdiagnostics support.
2062 AC_MSG_CHECKING([whether to enable libgdiagnostics])
2063 AC_ARG_ENABLE(libgdiagnostics,
2064 [AS_HELP_STRING([--enable-libgdiagnostics],
2065 [build libgdiagnostics shared library])],
2066 enable_libgdiagnostics=$enableval,
2067 enable_libgdiagnostics=no)
2069 if test x$enable_libgdiagnostics = xyes; then
2070 # Disable libgdiagnostics if -enable-host-shared not specified
2071 # but not if building for Mingw. All code in Windows
2072 # is position independent code (PIC).
2073 case $target in
2074 *mingw*) ;;
2075 *)
2076 if test x$host_shared != xyes; then
2077 AC_MSG_ERROR([
2078 Enabling libgdiagnostics requires --enable-host-shared.
2080 --enable-host-shared typically slows the rest of the compiler down by
2081 a few %, so you must explicitly enable it.
2083 If you want to build both libgdiagnostics and the regular compiler, it is often
2084 best to do this via two separate configure/builds, in separate
2085 directories, to avoid imposing the performance cost of
2086 --enable-host-shared on the regular compiler.])
2087 fi
2088 ;;
2089 esac
2090 fi
2091 AC_MSG_RESULT($enable_libgdiagnostics)
2092 AC_SUBST(enable_libgdiagnostics)
2095 # Rust requires -ldl and -lpthread if you are using an old glibc that does not include them by
2096 # default, so we check for them here
2097 # We are doing the test here and not in the gcc/configure to be able to nicely disable the
2098 # build of the Rust frontend in case a dep is missing.
2099 missing_rust_dynlibs=none
2101 save_LIBS="$LIBS"
2102 LIBS=
2103 AC_SEARCH_LIBS([dlopen], [dl])
2104 AC_SEARCH_LIBS([pthread_create], [pthread])
2105 CRAB1_LIBS="$LIBS"
2106 LIBS="$save_LIBS"
2108 if test "$ac_cv_search_dlopen" = no; then
2109 missing_rust_dynlibs="libdl"
2110 fi
2112 if test "$ac_cv_search_pthread_create" = no; then
2113 missing_rust_dynlibs="$missing_rust_dynlibs, libpthread"
2114 fi
2116 AC_SUBST(CRAB1_LIBS, "$CRAB1_LIBS")
2118 # If we are building PIC/PIE host executables, and we are building dependent
2119 # libs (e.g. GMP) in-tree those libs need to be configured to generate PIC
2120 # code.
2121 host_libs_picflag=
2122 if test "$host_shared" = "yes" -o "$host_pie" = "yes"; then
2123 host_libs_picflag='--with-pic'
2124 fi
2125 AC_SUBST(host_libs_picflag)
2127 # By default, C and C++ are the only stage 1 languages.
2128 stage1_languages=,c,
2130 # Target libraries that we bootstrap.
2131 bootstrap_target_libs=,target-libgcc,
2133 # Figure out what language subdirectories are present.
2134 # Look if the user specified --enable-languages="..."; if not, use
2135 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2136 # go away some day.
2137 # NB: embedded tabs in this IF block -- do not untabify
2138 if test -d ${srcdir}/gcc; then
2139 if test x"${enable_languages+set}" != xset; then
2140 if test x"${LANGUAGES+set}" = xset; then
2141 enable_languages="${LANGUAGES}"
2142 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
2143 else
2144 enable_languages=default
2145 fi
2146 else
2147 if test x"${enable_languages}" = x ||
2148 test x"${enable_languages}" = xyes;
2149 then
2150 echo configure.ac: --enable-languages needs at least one language argument 1>&2
2151 exit 1
2152 fi
2153 fi
2154 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2156 # 'f95' is the old name for the 'fortran' language. We issue a warning
2157 # and make the substitution.
2158 case ,${enable_languages}, in
2159 *,f95,*)
2160 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
2161 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
2162 ;;
2163 esac
2165 # If bootstrapping, C++ must be enabled.
2166 case ",$enable_languages,:$enable_bootstrap" in
2167 *,c++,*:*) ;;
2168 *:yes)
2169 if test -f ${srcdir}/gcc/cp/config-lang.in; then
2170 enable_languages="${enable_languages},c++"
2171 else
2172 AC_MSG_ERROR([bootstrapping requires c++ sources])
2173 fi
2174 ;;
2175 esac
2177 # First scan to see if an enabled language requires some other language.
2178 # We assume that a given config-lang.in will list all the language
2179 # front ends it requires, even if some are required indirectly.
2180 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2181 case ${lang_frag} in
2182 ..) ;;
2183 # The odd quoting in the next line works around
2184 # an apparent bug in bash 1.12 on linux.
2185 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2186 *)
2187 # From the config-lang.in, get $language, $lang_requires, and
2188 # $lang_requires_boot_languages.
2189 language=
2190 lang_requires=
2191 lang_requires_boot_languages=
2192 # set srcdir during sourcing lang_frag to the gcc dir.
2193 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
2194 # pollutes this shell
2195 saved_srcdir=${srcdir}
2196 srcdir=${srcdir}/gcc . ${lang_frag}
2197 srcdir=${saved_srcdir}
2198 for other in ${lang_requires} ${lang_requires_boot_languages}; do
2199 case ,${enable_languages}, in
2200 *,$other,*) ;;
2201 *,default,*) ;;
2202 *,all,*) ;;
2203 *,$language,*)
2204 echo " \`$other' language required by \`$language'; enabling" 1>&2
2205 enable_languages="${enable_languages},${other}"
2206 ;;
2207 esac
2208 done
2209 for other in ${lang_requires_boot_languages} ; do
2210 if test "$other" != "c"; then
2211 case ,${enable_stage1_languages}, in
2212 *,$other,*) ;;
2213 *,default,*) ;;
2214 *,all,*) ;;
2215 *)
2216 case ,${enable_languages}, in
2217 *,$language,*)
2218 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
2219 enable_stage1_languages="$enable_stage1_languages,${other}"
2220 ;;
2221 esac
2222 ;;
2223 esac
2224 fi
2225 done
2226 ;;
2227 esac
2228 done
2230 new_enable_languages=,c,
2232 # If LTO is enabled, add the LTO front end.
2233 if test "$enable_lto" = "yes" ; then
2234 case ,${enable_languages}, in
2235 *,lto,*) ;;
2236 *) enable_languages="${enable_languages},lto" ;;
2237 esac
2238 if test "${build_lto_plugin}" = "yes" ; then
2239 configdirs="$configdirs lto-plugin"
2240 fi
2241 fi
2243 # If we're building an offloading compiler, add the LTO front end.
2244 if test x"$enable_as_accelerator_for" != x ; then
2245 case ,${enable_languages}, in
2246 *,lto,*) ;;
2247 *) enable_languages="${enable_languages},lto" ;;
2248 esac
2249 fi
2251 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
2252 potential_languages=,c,
2254 enabled_target_libs=
2255 disabled_target_libs=
2257 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2258 case ${lang_frag} in
2259 ..) ;;
2260 # The odd quoting in the next line works around
2261 # an apparent bug in bash 1.12 on linux.
2262 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2263 *)
2264 # From the config-lang.in, get $language, $target_libs,
2265 # $lang_dirs, $boot_language, and $build_by_default
2266 language=
2267 target_libs=
2268 lang_dirs=
2269 subdir_requires=
2270 boot_language=no
2271 build_by_default=yes
2272 # set srcdir during sourcing. See above about save & restore
2273 saved_srcdir=${srcdir}
2274 srcdir=${srcdir}/gcc . ${lang_frag}
2275 srcdir=${saved_srcdir}
2276 if test x${language} = x; then
2277 echo "${lang_frag} doesn't set \$language." 1>&2
2278 exit 1
2279 fi
2281 if test "$language" = "c++"; then
2282 boot_language=yes
2283 fi
2285 add_this_lang=no
2286 # C is always enabled, so no need to add it again
2287 if test "$language" != "c"; then
2288 case ,${enable_languages}, in
2289 *,${language},*)
2290 # Language was explicitly selected; include it
2291 add_this_lang=yes
2292 ;;
2293 *,all,*)
2294 # All languages are enabled
2295 add_this_lang=all
2296 ;;
2297 *,default,*)
2298 # 'default' was selected, select it if it is a default language
2299 add_this_lang=${build_by_default}
2300 ;;
2301 esac
2302 fi
2304 # Disable languages that need other directories if these aren't available.
2305 for i in $subdir_requires; do
2306 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2307 case ${add_this_lang} in
2308 yes)
2309 # Specifically requested language; tell them.
2310 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2311 ;;
2312 all)
2313 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2314 add_this_lang=unsupported
2315 ;;
2316 *)
2317 # Silently disable.
2318 add_this_lang=unsupported
2319 ;;
2320 esac
2321 done
2323 # Disable Ada if no preexisting GNAT is available.
2324 case ${add_this_lang}:${language}:${have_gnat} in
2325 yes:ada:no)
2326 # Specifically requested language; tell them.
2327 AC_MSG_ERROR([GNAT is required to build $language])
2328 ;;
2329 all:ada:no)
2330 AC_MSG_WARN([GNAT is required to build $language])
2331 add_this_lang=unsupported
2332 ;;
2333 *:ada:no)
2334 # Silently disable.
2335 add_this_lang=unsupported
2336 ;;
2337 esac
2339 # Disable D if no preexisting GDC is available.
2340 case ${add_this_lang}:${language}:${have_gdc} in
2341 yes:d:no)
2342 # Specifically requested language; tell them.
2343 AC_MSG_ERROR([GDC is required to build $language])
2344 ;;
2345 all:d:no)
2346 AC_MSG_WARN([GDC is required to build $language])
2347 add_this_lang=unsupported
2348 ;;
2349 *:d:no)
2350 # Silently disable.
2351 add_this_lang=unsupported
2352 ;;
2353 esac
2355 # Disable Rust if we are missing some required C libraries for the Rust runtime.
2356 case ${add_this_lang}:${language}:${missing_rust_dynlibs} in
2357 *:rust:none)
2358 # Nothing to do - we're not missing any C libraries
2359 ;;
2360 yes:rust:*)
2361 AC_MSG_ERROR([some C libraries are required to build $language: $missing_rust_dynlibs])
2362 add_this_lang=unsupported
2363 ;;
2364 all:rust:*)
2365 AC_MSG_WARN([some C libraries are required to build $language: $missing_rust_dynlibs])
2366 add_this_lang=unsupported
2367 ;;
2368 *:rust:*)
2369 # Silently disable.
2370 add_this_lang=unsupported
2371 ;;
2372 esac
2374 # Disable jit if -enable-host-shared not specified
2375 # but not if building for Mingw. All code in Windows
2376 # is position independent code (PIC).
2377 case $target in
2378 *mingw*) ;;
2379 *)
2380 case ${add_this_lang}:${language}:${host_shared} in
2381 yes:jit:no)
2382 # PR jit/64780: explicitly specify --enable-host-shared
2383 AC_MSG_ERROR([
2384 Enabling language "jit" requires --enable-host-shared.
2386 --enable-host-shared typically slows the rest of the compiler down by
2387 a few %, so you must explicitly enable it.
2389 If you want to build both the jit and the regular compiler, it is often
2390 best to do this via two separate configure/builds, in separate
2391 directories, to avoid imposing the performance cost of
2392 --enable-host-shared on the regular compiler.])
2393 ;;
2394 all:jit:no)
2395 AC_MSG_WARN([--enable-host-shared required to build $language])
2396 add_this_lang=unsupported
2397 ;;
2398 *:jit:no)
2399 # Silently disable.
2400 add_this_lang=unsupported
2401 ;;
2402 esac
2403 ;;
2404 esac
2406 # Pre-conditions to consider whether cargo being supported.
2407 if test x"$have_cargo" = xyes \
2408 && test x"$build" != x"$host"; then
2409 # Until <https://github.com/Rust-GCC/gccrs/issues/2898>
2410 # "'cargo' should build for the host system" is resolved:
2411 AC_MSG_WARN([use of cargo not yet supported here in Canadian cross configurations])
2412 have_cargo=no
2413 else
2414 # Assume that cargo-produced object files are compatible with what
2415 # we're going to build here.
2416 :
2417 fi
2418 # Disable Rust if cargo is unavailable.
2419 case ${add_this_lang}:${language}:${have_cargo} in
2420 yes:rust:no)
2421 # Specifically requested language; tell them.
2422 AC_MSG_ERROR([cargo is required to build $language])
2423 ;;
2424 all:rust:no)
2425 AC_MSG_WARN([cargo is required to build $language])
2426 add_this_lang=unsupported
2427 ;;
2428 *:rust:no)
2429 # Silently disable.
2430 add_this_lang=unsupported
2431 ;;
2432 esac
2435 # Disable a language that is unsupported by the target.
2436 case "${add_this_lang}: $unsupported_languages " in
2437 no:*) ;;
2438 unsupported:*) ;;
2439 *:*" $language "*)
2440 AC_MSG_WARN([${language} not supported for this target])
2441 add_this_lang=unsupported
2442 ;;
2443 esac
2445 case $add_this_lang in
2446 unsupported)
2447 # Remove language-dependent dirs.
2448 disabled_target_libs="$disabled_target_libs $target_libs"
2449 noconfigdirs="$noconfigdirs $lang_dirs"
2450 ;;
2451 no)
2452 # Remove language-dependent dirs; still show language as supported.
2453 disabled_target_libs="$disabled_target_libs $target_libs"
2454 noconfigdirs="$noconfigdirs $lang_dirs"
2455 potential_languages="${potential_languages}${language},"
2456 ;;
2457 all|yes)
2458 new_enable_languages="${new_enable_languages}${language},"
2459 potential_languages="${potential_languages}${language},"
2460 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2461 enabled_target_libs="$enabled_target_libs $target_libs"
2462 case "${boot_language}:,$enable_stage1_languages," in
2463 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2464 # Add to (comma-separated) list of stage 1 languages.
2465 case ",$stage1_languages," in
2466 *,$language,* | ,yes, | ,all,) ;;
2467 *) stage1_languages="${stage1_languages}${language}," ;;
2468 esac
2469 # We need to bootstrap any supporting libraries.
2470 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2471 ;;
2472 esac
2473 ;;
2474 esac
2475 ;;
2476 esac
2477 done
2479 # Add target libraries which are only needed for disabled languages
2480 # to noconfigdirs.
2481 if test -n "$disabled_target_libs"; then
2482 for dir in $disabled_target_libs; do
2483 case " $enabled_target_libs " in
2484 *" ${dir} "*) ;;
2485 *) noconfigdirs="$noconfigdirs $dir" ;;
2486 esac
2487 done
2488 fi
2490 AC_ARG_ENABLE(stage1-languages,
2491 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2492 [choose additional languages to build during
2493 stage1. Mostly useful for compiler development])],
2494 [case ,${enable_stage1_languages}, in
2495 ,no,|,,)
2496 # Set it to something that will have no effect in the loop below
2497 enable_stage1_languages=c ;;
2498 ,yes,)
2499 enable_stage1_languages=`echo $new_enable_languages | \
2500 sed -e "s/^,//" -e "s/,$//" ` ;;
2501 *,all,*)
2502 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2503 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2504 esac
2506 # Add "good" languages from enable_stage1_languages to stage1_languages,
2507 # while "bad" languages go in missing_languages. Leave no duplicates.
2508 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2509 case $potential_languages in
2510 *,$i,*)
2511 case $stage1_languages in
2512 *,$i,*) ;;
2513 *) stage1_languages="$stage1_languages$i," ;;
2514 esac ;;
2515 *)
2516 case $missing_languages in
2517 *,$i,*) ;;
2518 *) missing_languages="$missing_languages$i," ;;
2519 esac ;;
2520 esac
2521 done])
2523 # Remove leading/trailing commas that were added for simplicity
2524 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2525 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2526 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2527 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2529 if test "x$missing_languages" != x; then
2530 AC_MSG_ERROR([
2531 The following requested languages could not be built: ${missing_languages}
2532 Supported languages are: ${potential_languages}])
2533 fi
2534 if test "x$new_enable_languages" != "x$enable_languages"; then
2535 echo The following languages will be built: ${new_enable_languages}
2536 enable_languages="$new_enable_languages"
2537 fi
2539 AC_SUBST(stage1_languages)
2540 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2541 fi
2543 # Handle --disable-<component> generically.
2544 for dir in $configdirs $build_configdirs $target_configdirs ; do
2545 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2546 varname=`echo $dirname | sed -e s/+/_/g`
2547 if eval test x\${enable_${varname}} "=" xno ; then
2548 noconfigdirs="$noconfigdirs $dir"
2549 fi
2550 done
2552 # Check for Boehm's garbage collector
2553 AC_ARG_ENABLE(objc-gc,
2554 [AS_HELP_STRING([--enable-objc-gc],
2555 [enable use of Boehm's garbage collector with the
2556 GNU Objective-C runtime])])
2557 AC_ARG_WITH([target-bdw-gc],
2558 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2559 [specify prefix directory for installed bdw-gc package.
2560 Equivalent to --with-target-bdw-gc-include=PATH/include
2561 plus --with-target-bdw-gc-lib=PATH/lib])])
2562 AC_ARG_WITH([target-bdw-gc-include],
2563 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2564 [specify directories for installed bdw-gc include files])])
2565 AC_ARG_WITH([target-bdw-gc-lib],
2566 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2567 [specify directories for installed bdw-gc library])])
2569 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2570 AC_MSG_CHECKING([for bdw garbage collector])
2571 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2572 dnl no bdw-gw options, assume default locations
2573 AC_MSG_RESULT([using bdw-gc in default locations])
2574 else
2575 dnl bdw-gw options, first error checking, complete checking in libobjc
2576 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2577 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2578 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2579 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2580 else
2581 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2582 fi
2583 fi
2584 esac
2586 # Disable libitm, libsanitizer, libvtv if we're not building C++
2587 case ,${enable_languages}, in
2588 *,c++,*)
2589 # Disable libitm, libsanitizer if we're not building libstdc++
2590 case "${noconfigdirs}" in
2591 *target-libstdc++-v3*)
2592 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2593 ;;
2594 *) ;;
2595 esac
2596 ;;
2597 *)
2598 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer target-libvtv"
2599 ;;
2600 esac
2602 case ,${enable_languages}, in
2603 *,rust,*)
2604 case " ${noconfigdirs} " in
2605 *\ target-libstdc++-v3\ *)
2606 # Disable target libgrust if we're not building target libstdc++.
2607 noconfigdirs="$noconfigdirs target-libgrust"
2608 ;;
2609 esac
2610 ;;
2611 esac
2613 # If gcc/ is not in the source tree then we'll not be building a
2614 # target compiler, assume in that case we don't want to build any
2615 # target libraries or tools.
2616 #
2617 # This was added primarily for the benefit for binutils-gdb who reuse
2618 # this configure script, but don't always have target tools available.
2619 if test ! -d ${srcdir}/gcc; then
2620 skipdirs="${skipdirs} ${target_configdirs}"
2621 fi
2623 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2624 # $build_configdirs and $target_configdirs.
2625 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2627 notsupp=""
2628 for dir in . $skipdirs $noconfigdirs ; do
2629 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2630 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2631 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2632 if test -r $srcdir/$dirname/configure ; then
2633 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2634 true
2635 else
2636 notsupp="$notsupp $dir"
2637 fi
2638 fi
2639 fi
2640 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2641 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2642 if test -r $srcdir/$dirname/configure ; then
2643 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2644 true
2645 else
2646 notsupp="$notsupp $dir"
2647 fi
2648 fi
2649 fi
2650 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2651 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2652 if test -r $srcdir/$dirname/configure ; then
2653 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2654 true
2655 else
2656 notsupp="$notsupp $dir"
2657 fi
2658 fi
2659 fi
2660 done
2662 # Quietly strip out all directories which aren't configurable in this tree.
2663 # This relies on all configurable subdirectories being autoconfiscated, which
2664 # is now the case.
2665 build_configdirs_all="$build_configdirs"
2666 build_configdirs=
2667 for i in ${build_configdirs_all} ; do
2668 j=`echo $i | sed -e s/build-//g`
2669 if test -f ${srcdir}/$j/configure ; then
2670 build_configdirs="${build_configdirs} $i"
2671 fi
2672 done
2674 configdirs_all="$configdirs"
2675 configdirs=
2676 for i in ${configdirs_all} ; do
2677 if test -f ${srcdir}/$i/configure ; then
2678 configdirs="${configdirs} $i"
2679 fi
2680 done
2682 target_configdirs_all="$target_configdirs"
2683 target_configdirs=
2684 for i in ${target_configdirs_all} ; do
2685 j=`echo $i | sed -e s/target-//g`
2686 if test -f ${srcdir}/$j/configure ; then
2687 target_configdirs="${target_configdirs} $i"
2688 fi
2689 done
2691 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2692 # so we have to add it after the preceding checks.
2693 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2694 then
2695 case " $configdirs " in
2696 *" libiberty "*)
2697 # If we can build libiberty, we can also build libiberty-linker-plugin.
2698 configdirs="$configdirs libiberty-linker-plugin"
2699 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2700 --with-libiberty=../libiberty-linker-plugin";;
2701 *)
2702 AC_MSG_ERROR([libiberty missing]);;
2703 esac
2704 fi
2706 # Sometimes we have special requirements for the host libiberty.
2707 extra_host_libiberty_configure_flags=
2708 case " $configdirs " in
2709 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
2710 # When these are to be built as shared libraries, the same applies to
2711 # libiberty.
2712 extra_host_libiberty_configure_flags=--enable-shared
2713 ;;
2714 esac
2715 AC_SUBST(extra_host_libiberty_configure_flags)
2717 # Sometimes we have special requirements for the host zlib.
2718 extra_host_zlib_configure_flags=
2719 case " $configdirs " in
2720 *" bfd "*)
2721 # When bfd is to be built as a shared library, the same applies to
2722 # zlib.
2723 if test "$enable_shared" = "yes"; then
2724 extra_host_zlib_configure_flags=--enable-host-shared
2725 fi
2726 ;;
2727 esac
2728 AC_SUBST(extra_host_zlib_configure_flags)
2730 # Produce a warning message for the subdirs we can't configure.
2731 # This isn't especially interesting in the Cygnus tree, but in the individual
2732 # FSF releases, it's important to let people know when their machine isn't
2733 # supported by the one or two programs in a package.
2735 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2736 # If $appdirs is non-empty, at least one of those directories must still
2737 # be configured, or we error out. (E.g., if the gas release supports a
2738 # specified target in some subdirs but not the gas subdir, we shouldn't
2739 # pretend that all is well.)
2740 if test -n "$appdirs" ; then
2741 for dir in $appdirs ; do
2742 if test -r $dir/Makefile.in ; then
2743 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2744 appdirs=""
2745 break
2746 fi
2747 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2748 appdirs=""
2749 break
2750 fi
2751 fi
2752 done
2753 if test -n "$appdirs" ; then
2754 echo "*** This configuration is not supported by this package." 1>&2
2755 exit 1
2756 fi
2757 fi
2758 # Okay, some application will build, or we don't care to check. Still
2759 # notify of subdirs not getting built.
2760 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2761 echo " ${notsupp}" 1>&2
2762 echo " (Any other directories should still work fine.)" 1>&2
2763 fi
2765 case "$host" in
2766 *msdosdjgpp*)
2767 enable_gdbtk=no ;;
2768 esac
2770 # To find our prefix, in gcc_cv_tool_prefix.
2771 ACX_TOOL_DIRS
2773 copy_dirs=
2775 AC_ARG_WITH([build-sysroot],
2776 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2777 [use sysroot as the system root during the build])],
2778 [if test x"$withval" != x ; then
2779 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2780 fi],
2781 [SYSROOT_CFLAGS_FOR_TARGET=])
2782 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2784 AC_ARG_WITH([debug-prefix-map],
2785 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2786 [map A to B, C to D ... in debug information])],
2787 [if test x"$withval" != x; then
2788 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2789 for debug_map in $withval; do
2790 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2791 done
2792 fi],
2793 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2794 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2796 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2797 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2798 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2799 # We want to ensure that TARGET libraries (which we know are built with
2800 # gcc) are built with "-O2 -g", so include those options when setting
2801 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2802 if test "x$CFLAGS_FOR_TARGET" = x; then
2803 if test "x${is_cross_compiler}" = xyes; then
2804 CFLAGS_FOR_TARGET="-g -O2"
2805 else
2806 CFLAGS_FOR_TARGET=$CFLAGS
2807 case " $CFLAGS " in
2808 *" -O2 "*) ;;
2809 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2810 esac
2811 case " $CFLAGS " in
2812 *" -g "* | *" -g3 "*) ;;
2813 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2814 esac
2815 fi
2816 fi
2817 AC_SUBST(CFLAGS_FOR_TARGET)
2819 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2820 if test "x${is_cross_compiler}" = xyes; then
2821 CXXFLAGS_FOR_TARGET="-g -O2"
2822 else
2823 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2824 case " $CXXFLAGS " in
2825 *" -O2 "*) ;;
2826 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2827 esac
2828 case " $CXXFLAGS " in
2829 *" -g "* | *" -g3 "*) ;;
2830 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2831 esac
2832 fi
2833 fi
2834 AC_SUBST(CXXFLAGS_FOR_TARGET)
2836 AC_SUBST(LDFLAGS_FOR_TARGET)
2838 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2839 # the named directory are copied to $(tooldir)/sys-include.
2840 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2841 if test x${is_cross_compiler} = xno ; then
2842 echo 1>&2 '***' --with-headers is only supported when cross compiling
2843 exit 1
2844 fi
2845 if test x"${with_headers}" != xyes ; then
2846 x=${gcc_cv_tool_prefix}
2847 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2848 fi
2849 fi
2851 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2852 # the name directories are copied to $(tooldir)/lib. Multiple directories
2853 # are permitted.
2854 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2855 if test x${is_cross_compiler} = xno ; then
2856 echo 1>&2 '***' --with-libs is only supported when cross compiling
2857 exit 1
2858 fi
2859 if test x"${with_libs}" != xyes ; then
2860 # Copy the libraries in reverse order, so that files in the first named
2861 # library override files in subsequent libraries.
2862 x=${gcc_cv_tool_prefix}
2863 for l in ${with_libs}; do
2864 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2865 done
2866 fi
2867 fi
2869 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2870 #
2871 # This is done by determining whether or not the appropriate directory
2872 # is available, and by checking whether or not specific configurations
2873 # have requested that this magic not happen.
2874 #
2875 # The command line options always override the explicit settings in
2876 # configure.ac, and the settings in configure.ac override this magic.
2877 #
2878 # If the default for a toolchain is to use GNU as and ld, and you don't
2879 # want to do that, then you should use the --without-gnu-as and
2880 # --without-gnu-ld options for the configure script. Similarly, if
2881 # the default is to use the included zlib and you don't want to do that,
2882 # you should use the --with-system-zlib option for the configure script.
2884 if test x${use_gnu_as} = x &&
2885 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2886 with_gnu_as=yes
2887 extra_host_args="$extra_host_args --with-gnu-as"
2888 fi
2890 if test x${use_gnu_ld} = x &&
2891 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2892 with_gnu_ld=yes
2893 extra_host_args="$extra_host_args --with-gnu-ld"
2894 fi
2896 if test x${use_included_zlib} = x &&
2897 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2898 :
2899 else
2900 with_system_zlib=yes
2901 extra_host_args="$extra_host_args --with-system-zlib"
2902 fi
2904 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2905 # can detect this case.
2907 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2908 with_newlib=yes
2909 extra_host_args="$extra_host_args --with-newlib"
2910 fi
2912 # Handle ${copy_dirs}
2913 set fnord ${copy_dirs}
2914 shift
2915 while test $# != 0 ; do
2916 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2917 :
2918 else
2919 echo Copying $1 to $2
2921 # Use the install script to create the directory and all required
2922 # parent directories.
2923 if test -d $2 ; then
2924 :
2925 else
2926 echo >config.temp
2927 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2928 fi
2930 # Copy the directory, assuming we have tar.
2931 # FIXME: Should we use B in the second tar? Not all systems support it.
2932 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2934 # It is the responsibility of the user to correctly adjust all
2935 # symlinks. If somebody can figure out how to handle them correctly
2936 # here, feel free to add the code.
2938 echo $1 > $2/COPIED
2939 fi
2940 shift; shift
2941 done
2943 # Determine a target-dependent exec_prefix that the installed
2944 # gcc will search in. Keep this list sorted by triplet, with
2945 # the *-*-osname triplets last.
2946 md_exec_prefix=
2947 case "${target}" in
2948 i[[34567]]86-pc-msdosdjgpp*)
2949 md_exec_prefix=/dev/env/DJDIR/bin
2950 ;;
2951 *-*-hpux* | \
2952 *-*-nto-qnx* | \
2953 *-*-solaris2*)
2954 md_exec_prefix=/usr/ccs/bin
2955 ;;
2956 esac
2958 extra_arflags_for_target=
2959 extra_nmflags_for_target=
2960 extra_ranlibflags_for_target=
2961 target_makefile_frag=/dev/null
2962 case "${target}" in
2963 spu-*-*)
2964 target_makefile_frag="config/mt-spu"
2965 ;;
2966 loongarch*-*linux* | loongarch*-*gnu*)
2967 target_makefile_frag="config/mt-loongarch-gnu"
2968 ;;
2969 loongarch*-*elf*)
2970 target_makefile_frag="config/mt-loongarch-elf"
2971 ;;
2972 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2973 target_makefile_frag="config/mt-sde"
2974 ;;
2975 mipsisa*-*-elfoabi*)
2976 target_makefile_frag="config/mt-mips-elfoabi"
2977 ;;
2978 mips*-*-*linux* | mips*-*-gnu*)
2979 target_makefile_frag="config/mt-mips-gnu"
2980 ;;
2981 *-*-linux-android*)
2982 target_makefile_frag="config/mt-android"
2983 ;;
2984 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2985 target_makefile_frag="config/mt-gnu"
2986 ;;
2987 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2988 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2989 # commands to handle both 32-bit and 64-bit objects. These flags are
2990 # harmless if we're using GNU nm or ar.
2991 extra_arflags_for_target=" -X32_64"
2992 extra_nmflags_for_target=" -B -X32_64"
2993 ;;
2994 esac
2996 alphaieee_frag=/dev/null
2997 case $target in
2998 alpha*-*-*)
2999 # This just makes sure to use the -mieee option to build target libs.
3000 # This should probably be set individually by each library.
3001 alphaieee_frag="config/mt-alphaieee"
3002 ;;
3003 esac
3005 # If --enable-target-optspace always use -Os instead of -O2 to build
3006 # the target libraries, similarly if it is not specified, use -Os
3007 # on selected platforms.
3008 ospace_frag=/dev/null
3009 case "${enable_target_optspace}:${target}" in
3010 yes:*)
3011 ospace_frag="config/mt-ospace"
3012 ;;
3013 :d30v-*)
3014 ospace_frag="config/mt-d30v"
3015 ;;
3016 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
3017 ospace_frag="config/mt-ospace"
3018 ;;
3019 no:* | :*)
3020 ;;
3021 *)
3022 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
3023 ;;
3024 esac
3026 # Some systems (e.g., one of the i386-aix systems the gas testers are
3027 # using) don't handle "\$" correctly, so don't use it here.
3028 tooldir='${exec_prefix}'/${target_noncanonical}
3029 build_tooldir=${tooldir}
3031 # Create a .gdbinit file which runs the one in srcdir
3032 # and tells GDB to look there for source files.
3034 if test -r ${srcdir}/.gdbinit ; then
3035 case ${srcdir} in
3036 .) ;;
3037 *) cat > ./.gdbinit <<EOF
3038 # ${NO_EDIT}
3039 dir ${srcdir}
3040 dir .
3041 source ${srcdir}/.gdbinit
3042 EOF
3043 ;;
3044 esac
3045 fi
3047 # Make sure that the compiler is able to generate an executable. If it
3048 # can't, we are probably in trouble. We don't care whether we can run the
3049 # executable--we might be using a cross compiler--we only care whether it
3050 # can be created. At this point the main configure script has set CC.
3051 we_are_ok=no
3052 echo "int main () { return 0; }" > conftest.c
3053 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3054 if test $? = 0 ; then
3055 if test -s conftest || test -s conftest.exe ; then
3056 we_are_ok=yes
3057 fi
3058 fi
3059 case $we_are_ok in
3060 no)
3061 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
3062 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
3063 rm -f conftest*
3064 exit 1
3065 ;;
3066 esac
3067 rm -f conftest*
3069 # Decide which environment variable is used to find dynamic libraries.
3070 case "${host}" in
3071 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
3072 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
3073 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
3074 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
3075 esac
3077 # On systems where the dynamic library environment variable is PATH,
3078 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
3079 # built executables to PATH.
3080 if test "$RPATH_ENVVAR" = PATH; then
3081 GCC_SHLIB_SUBDIR=/shlib
3082 else
3083 GCC_SHLIB_SUBDIR=
3084 fi
3086 # Adjust the toplevel makefile according to whether bootstrap was selected.
3087 case $enable_bootstrap in
3088 yes)
3089 bootstrap_suffix=bootstrap
3090 BUILD_CONFIG=bootstrap-debug
3091 ;;
3092 no)
3093 bootstrap_suffix=no-bootstrap
3094 BUILD_CONFIG=
3095 ;;
3096 esac
3098 AC_MSG_CHECKING(for default BUILD_CONFIG)
3100 AC_ARG_WITH([build-config],
3101 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
3102 [use config/NAME.mk build configuration])],
3103 [case $with_build_config in
3104 yes) with_build_config= ;;
3105 no) with_build_config= BUILD_CONFIG= ;;
3106 esac])
3108 if test "x${with_build_config}" != x; then
3109 BUILD_CONFIG=$with_build_config
3110 else
3111 case $BUILD_CONFIG in
3112 bootstrap-debug)
3113 if echo "int f (void) { return 0; }" > conftest.c &&
3114 ${CC} -c conftest.c &&
3115 mv conftest.o conftest.o.g0 &&
3116 ${CC} -c -g conftest.c &&
3117 mv conftest.o conftest.o.g &&
3118 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
3119 :
3120 else
3121 BUILD_CONFIG=
3122 fi
3123 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
3124 ;;
3125 esac
3126 fi
3127 AC_MSG_RESULT($BUILD_CONFIG)
3128 AC_SUBST(BUILD_CONFIG)
3130 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
3131 AC_MSG_CHECKING([for --enable-vtable-verify])
3132 AC_ARG_ENABLE(vtable-verify,
3133 [AS_HELP_STRING([--enable-vtable-verify],
3134 [Enable vtable verification feature])],
3135 [case "$enableval" in
3136 yes) enable_vtable_verify=yes ;;
3137 no) enable_vtable_verify=no ;;
3138 *) enable_vtable_verify=no;;
3139 esac],
3140 [enable_vtable_verify=no])
3141 AC_MSG_RESULT($enable_vtable_verify)
3143 # Record target_configdirs and the configure arguments for target and
3144 # build configuration in Makefile.
3145 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
3146 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
3147 bootstrap_fixincludes=no
3149 # If we are building libgomp, bootstrap it.
3150 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
3151 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
3152 fi
3154 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
3155 # or bootstrap-ubsan, bootstrap it.
3156 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
3157 case "$BUILD_CONFIG" in
3158 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
3159 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
3160 bootstrap_fixincludes=yes
3161 ;;
3162 esac
3163 fi
3165 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
3166 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
3167 test "$enable_vtable_verify" != no; then
3168 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
3169 fi
3171 # If we are building libatomic and the list of enabled languages includes the
3172 # D frontend, bootstrap it.
3173 if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
3174 case ,${enable_languages}, in
3175 *,d,*)
3176 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
3177 ;;
3178 esac
3179 fi
3181 # Determine whether gdb needs tk/tcl or not.
3182 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
3183 # and in that case we want gdb to be built without tk. Ugh!
3184 # In fact I believe gdb is the *only* package directly dependent on tk,
3185 # so we should be able to put the 'maybe's in unconditionally and
3186 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
3187 # 100% sure that that's safe though.
3189 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
3190 case "$enable_gdbtk" in
3191 no)
3192 GDB_TK="" ;;
3193 yes)
3194 GDB_TK="${gdb_tk}" ;;
3195 *)
3196 # Only add the dependency on gdbtk when GDBtk is part of the gdb
3197 # distro. Eventually someone will fix this and move Insight, nee
3198 # gdbtk to a separate directory.
3199 if test -d ${srcdir}/gdb/gdbtk ; then
3200 GDB_TK="${gdb_tk}"
3201 else
3202 GDB_TK=""
3203 fi
3204 ;;
3205 esac
3206 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
3207 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
3209 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
3210 # else does, only include them if one of these is built. The Makefile
3211 # provides the ordering, so it's enough here to add to the list.
3212 case " ${configdirs} " in
3213 *\ gdb\ *)
3214 configdirs="${configdirs} gnulib gdbsupport"
3215 ;;
3216 *\ gdbserver\ *)
3217 configdirs="${configdirs} gnulib gdbsupport"
3218 ;;
3219 *\ sim\ *)
3220 configdirs="${configdirs} gnulib"
3221 ;;
3222 esac
3224 # Strip out unwanted targets.
3226 # While at that, we remove Makefiles if we were started for recursive
3227 # configuration, so that the top-level Makefile reconfigures them,
3228 # like we used to do when configure itself was recursive.
3230 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
3231 # but now we're fixing up the Makefile ourselves with the additional
3232 # commands passed to AC_CONFIG_FILES. Use separate variables
3233 # extrasub-{build,host,target} not because there is any reason to split
3234 # the substitutions up that way, but only to remain below the limit of
3235 # 99 commands in a script, for HP-UX sed.
3237 # Do not nest @if/@endif or @unless/@endunless pairs, because
3238 # configure will not warn you at all.
3240 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
3241 yes:yes:*\ gold\ *:*,c++,*) ;;
3242 yes:yes:*\ gold\ *:*)
3243 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
3244 ;;
3245 esac
3247 # Bootstrapping GCC requires libstdc++-v3 so error out if libstdc++ is disabled with bootstrapping
3248 # Note C++ is always enabled for stage1 now.
3249 case "$enable_bootstrap:${noconfigdirs}" in
3250 yes:*target-libstdc++-v3*)
3251 AC_MSG_ERROR([bootstrapping with --disable-libstdcxx is not supported])
3252 ;;
3253 esac
3256 extrasub_build=
3257 for module in ${build_configdirs} ; do
3258 if test -z "${no_recursion}" \
3259 && test -f ${build_subdir}/${module}/Makefile; then
3260 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
3261 rm -f ${build_subdir}/${module}/Makefile
3262 fi
3263 extrasub_build="$extrasub_build
3264 /^@if build-$module\$/d
3265 /^@endif build-$module\$/d
3266 /^@unless build-$module\$/,/^@endunless build-$module\$/d
3267 /^@if build-$module-$bootstrap_suffix\$/d
3268 /^@endif build-$module-$bootstrap_suffix\$/d
3269 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
3270 done
3271 extrasub_host=
3272 for module in ${configdirs} ; do
3273 if test -z "${no_recursion}"; then
3274 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
3275 if test -f ${file}; then
3276 echo 1>&2 "*** removing ${file} to force reconfigure"
3277 rm -f ${file}
3278 fi
3279 done
3280 fi
3281 case ${module},${bootstrap_fixincludes} in
3282 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
3283 *) host_bootstrap_suffix=$bootstrap_suffix ;;
3284 esac
3285 extrasub_host="$extrasub_host
3286 /^@if $module\$/d
3287 /^@endif $module\$/d
3288 /^@unless $module\$/,/^@endunless $module\$/d
3289 /^@if $module-$host_bootstrap_suffix\$/d
3290 /^@endif $module-$host_bootstrap_suffix\$/d
3291 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
3292 done
3293 extrasub_target=
3294 for module in ${target_configdirs} ; do
3295 if test -z "${no_recursion}" \
3296 && test -f ${target_subdir}/${module}/Makefile; then
3297 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
3298 rm -f ${target_subdir}/${module}/Makefile
3299 fi
3301 # We only bootstrap target libraries listed in bootstrap_target_libs.
3302 case $bootstrap_target_libs in
3303 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
3304 *) target_bootstrap_suffix=no-bootstrap ;;
3305 esac
3307 extrasub_target="$extrasub_target
3308 /^@if target-$module\$/d
3309 /^@endif target-$module\$/d
3310 /^@unless target-$module\$/,/^@endunless target-$module\$/d
3311 /^@if target-$module-$target_bootstrap_suffix\$/d
3312 /^@endif target-$module-$target_bootstrap_suffix\$/d
3313 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
3314 done
3316 # Do the final fixup along with target modules.
3317 extrasub_target="$extrasub_target
3318 /^@if /,/^@endif /d
3319 /^@unless /d
3320 /^@endunless /d"
3322 if test "$enable_pgo_build" != "no"; then
3323 extrasub_build="$extrasub_build
3324 /^@if pgo-build\$/d
3325 /^@endif pgo-build\$/d"
3326 fi
3328 # Create the serialization dependencies. This uses a temporary file.
3330 AC_ARG_ENABLE([serial-configure],
3331 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3332 [force sequential configuration of
3333 sub-packages for the host, target or build
3334 machine, or all sub-packages])])
3336 case ${enable_serial_configure} in
3337 yes)
3338 enable_serial_build_configure=yes
3339 enable_serial_host_configure=yes
3340 enable_serial_target_configure=yes
3341 ;;
3342 esac
3344 # These force 'configure's to be done one at a time, to avoid problems
3345 # with contention over a shared config.cache.
3346 rm -f serdep.tmp
3347 if test "x${enable_serial_build_configure}" = xyes || test "x${enable_serial_host_configure}" = xyes || test "x${enable_serial_target_configure}" = xyes; then
3348 echo '# serdep.tmp' > serdep.tmp
3349 fi
3350 olditem=
3351 test "x${enable_serial_build_configure}" = xyes &&
3352 for item in ${build_configdirs} ; do
3353 case ${olditem} in
3354 "") ;;
3355 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
3356 esac
3357 olditem=${item}
3358 done
3359 olditem=
3360 test "x${enable_serial_host_configure}" = xyes &&
3361 for item in ${configdirs} ; do
3362 case ${olditem} in
3363 "") ;;
3364 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
3365 esac
3366 olditem=${item}
3367 done
3368 olditem=
3369 test "x${enable_serial_target_configure}" = xyes &&
3370 for item in ${target_configdirs} ; do
3371 case ${olditem} in
3372 "") ;;
3373 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
3374 esac
3375 olditem=${item}
3376 done
3377 serialization_dependencies=serdep.tmp
3378 AC_SUBST_FILE(serialization_dependencies)
3380 # Base args. Strip norecursion, cache-file, srcdir, host, build,
3381 # target, nonopt, and variable assignments. These are the ones we
3382 # might not want to pass down to subconfigures. The exception being
3383 # --cache-file=/dev/null, which is used to turn off the use of cache
3384 # files altogether, and which should be passed on to subconfigures.
3385 # Also strip program-prefix, program-suffix, and program-transform-name,
3386 # so that we can pass down a consistent program-transform-name.
3387 hbaseargs=
3388 bbaseargs=
3389 tbaseargs=
3390 keep_next=no
3391 skip_next=no
3392 eval "set -- $ac_configure_args"
3393 for ac_arg
3394 do
3395 if test X"$skip_next" = X"yes"; then
3396 skip_next=no
3397 continue
3398 fi
3399 if test X"$keep_next" = X"yes"; then
3400 case $ac_arg in
3401 *\'*)
3402 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3403 esac
3404 hbaseargs="$hbaseargs '$ac_arg'"
3405 bbaseargs="$bbaseargs '$ac_arg'"
3406 tbaseargs="$tbaseargs '$ac_arg'"
3407 keep_next=no
3408 continue
3409 fi
3411 # Handle separated arguments. Based on the logic generated by
3412 # autoconf 2.59.
3413 case $ac_arg in
3414 *=* | --config-cache | -C | -disable-* | --disable-* \
3415 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3416 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3417 | -with-* | --with-* | -without-* | --without-* | --x)
3418 separate_arg=no
3419 ;;
3420 -*)
3421 separate_arg=yes
3422 ;;
3423 *)
3424 separate_arg=no
3425 ;;
3426 esac
3428 skip_targ=no
3429 skip_barg=no
3430 case $ac_arg in
3431 changequote(,)
3432 --with-* | --without-*)
3433 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3435 case $libopt in
3436 *[-_]include)
3437 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3438 ;;
3439 *[-_]lib)
3440 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3441 ;;
3442 *[-_]prefix)
3443 lib=`echo "$libopt" | sed 's,[-_]prefix$,,'`
3444 ;;
3445 *[-_]type)
3446 lib=`echo "$libopt" | sed 's,[-_]type$,,'`
3447 ;;
3448 *)
3449 lib=$libopt
3450 ;;
3451 esac
3452 changequote([,])
3454 case $lib in
3455 mpc | mpfr | gmp | isl)
3456 # If we're processing --with-$lib, --with-$lib-include or
3457 # --with-$lib-lib, for one of the libs above, and target is
3458 # different from host, don't pass the current argument to any
3459 # target library's configure.
3460 if test x$is_cross_compiler = xyes; then
3461 skip_targ=yes
3462 fi
3463 ;;
3464 libintl | libiconv)
3465 # We don't want libintl (and co.) in anything but the host arguments.
3466 skip_targ=yes
3467 skip_barg=yes
3468 ;;
3469 esac
3470 ;;
3471 esac
3473 case "$ac_arg" in
3474 --cache-file=/dev/null | \
3475 -cache-file=/dev/null )
3476 # Handled here to avoid the test to skip args below.
3477 hbaseargs="$hbaseargs '$ac_arg'"
3478 bbaseargs="$bbaseargs '$ac_arg'"
3479 tbaseargs="$tbaseargs '$ac_arg'"
3480 # Assert: $separate_arg should always be no.
3481 keep_next=$separate_arg
3482 ;;
3483 --no*)
3484 continue
3485 ;;
3486 --c* | \
3487 --sr* | \
3488 --ho* | \
3489 --bu* | \
3490 --t* | \
3491 --program-* | \
3492 -cache_file* | \
3493 -srcdir* | \
3494 -host* | \
3495 -build* | \
3496 -target* | \
3497 -program-prefix* | \
3498 -program-suffix* | \
3499 -program-transform-name* )
3500 skip_next=$separate_arg
3501 continue
3502 ;;
3503 -*)
3504 # An option. Add it.
3505 case $ac_arg in
3506 *\'*)
3507 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3508 esac
3509 hbaseargs="$hbaseargs '$ac_arg'"
3510 if test X"$skip_barg" = Xno; then
3511 bbaseargs="$bbaseargs '$ac_arg'"
3512 fi
3513 if test X"$skip_targ" = Xno; then
3514 tbaseargs="$tbaseargs '$ac_arg'"
3515 fi
3516 keep_next=$separate_arg
3517 ;;
3518 *)
3519 # Either a variable assignment, or a nonopt (triplet). Don't
3520 # pass it down; let the Makefile handle this.
3521 continue
3522 ;;
3523 esac
3524 done
3525 # Remove the initial space we just introduced and, as these will be
3526 # expanded by make, quote '$'.
3527 hbaseargs=`echo "x$hbaseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3528 bbaseargs=`echo "x$bbaseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3530 # Add in --program-transform-name, after --program-prefix and
3531 # --program-suffix have been applied to it. Autoconf has already
3532 # doubled dollar signs and backslashes in program_transform_name; we want
3533 # the backslashes un-doubled, and then the entire thing wrapped in single
3534 # quotes, because this will be expanded first by make and then by the shell.
3535 # Also, because we want to override the logic in subdir configure scripts to
3536 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3537 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3538 ${program_transform_name}
3539 EOF_SED
3540 gcc_transform_name=`cat conftestsed.out`
3541 rm -f conftestsed.out
3542 hbaseargs="$hbaseargs --program-transform-name='${gcc_transform_name}'"
3543 bbaseargs="$bbaseargs --program-transform-name='${gcc_transform_name}'"
3544 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3545 if test "$silent" = yes; then
3546 bbaseargs="$bbaseargs --silent"
3547 hbaseargs="$hbaseargs --silent"
3548 tbaseargs="$tbaseargs --silent"
3549 fi
3551 bbaseargs="$bbaseargs --disable-option-checking"
3552 hbaseargs="$hbaseargs --disable-option-checking"
3553 tbaseargs="$tbaseargs --disable-option-checking"
3555 if test "$enable_year2038" = no; then
3556 bbaseargs="$bbaseargs --disable-year2038"
3557 hbaseargs="$hbaseargs --disable-year2038"
3558 tbaseargs="$tbaseargs --disable-year2038"
3559 fi
3561 # Record and document user additions to sub configure arguments.
3562 AC_ARG_VAR([build_configargs],
3563 [additional configure arguments for build directories])
3564 AC_ARG_VAR([host_configargs],
3565 [additional configure arguments for host directories])
3566 AC_ARG_VAR([target_configargs],
3567 [additional configure arguments for target directories])
3569 # For the build-side libraries, we just need to pretend we're native,
3570 # and not use the same cache file. Multilibs are neither needed nor
3571 # desired. We can't even use the same cache file for all build-side
3572 # libraries, as they're compiled differently; some with C, some with
3573 # C++ or with different feature-enabling options.
3574 build_configargs="$build_configargs --cache-file=./config.cache ${bbaseargs}"
3576 # For host modules, accept cache file option, or specification as blank.
3577 case "${cache_file}" in
3578 "") # empty
3579 cache_file_option="" ;;
3580 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3581 cache_file_option="--cache-file=${cache_file}" ;;
3582 *) # relative path
3583 cache_file_option="--cache-file=../${cache_file}" ;;
3584 esac
3586 # Host dirs don't like to share a cache file either, horribly enough.
3587 # This seems to be due to autoconf 2.5x stupidity.
3588 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${hbaseargs}"
3590 target_configargs="$target_configargs ${tbaseargs}"
3592 # Passing a --with-cross-host argument lets the target libraries know
3593 # whether they are being built with a cross-compiler or being built
3594 # native. However, it would be better to use other mechanisms to make the
3595 # sorts of decisions they want to make on this basis. Please consider
3596 # this option to be deprecated. FIXME.
3597 if test x${is_cross_compiler} = xyes ; then
3598 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3599 fi
3601 # Special user-friendly check for native x86_64-linux build, if
3602 # multilib is not explicitly enabled.
3603 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3604 x86_64-*linux*:yes:$build:$build:)
3605 # Make sure we have a development environment that handles 32-bit
3606 dev64=no
3607 echo "int main () { return 0; }" > conftest.c
3608 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3609 if test $? = 0 ; then
3610 if test -s conftest || test -s conftest.exe ; then
3611 dev64=yes
3612 fi
3613 fi
3614 rm -f conftest*
3615 if test x${dev64} != xyes ; then
3616 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.])
3617 fi
3618 ;;
3619 esac
3621 # Default to --enable-multilib.
3622 if test x${enable_multilib} = x ; then
3623 target_configargs="--enable-multilib ${target_configargs}"
3624 fi
3626 # Pass --with-newlib if appropriate. Note that target_configdirs has
3627 # changed from the earlier setting of with_newlib.
3628 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3629 target_configargs="--with-newlib ${target_configargs}"
3630 fi
3632 # Different target subdirs use different values of certain variables
3633 # (notably CXX). Worse, multilibs use *lots* of different values.
3634 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3635 # it doesn't automatically accept command-line overrides of them.
3636 # This means it's not safe for target subdirs to share a cache file,
3637 # which is disgusting, but there you have it. Hopefully this can be
3638 # fixed in future. It's still worthwhile to use a cache file for each
3639 # directory. I think.
3641 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3642 # We need to pass --target, as newer autoconf's requires consistency
3643 # for target_alias and gcc doesn't manage it consistently.
3644 target_configargs="--cache-file=./config.cache ${target_configargs}"
3646 FLAGS_FOR_TARGET=
3647 case " $target_configdirs " in
3648 *" newlib "*)
3649 case " $target_configargs " in
3650 *" --with-newlib "*)
3651 case "$target" in
3652 *-cygwin*)
3653 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3654 ;;
3655 esac
3657 # If we're not building GCC, don't discard standard headers.
3658 if test -d ${srcdir}/gcc; then
3659 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3661 if test "${build}" != "${host}"; then
3662 # On Canadian crosses, CC_FOR_TARGET will have already been set
3663 # by `configure', so we won't have an opportunity to add -Bgcc/
3664 # to it. This is right: we don't want to search that directory
3665 # for binaries, but we want the header files in there, so add
3666 # them explicitly.
3667 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3669 # Someone might think of using the pre-installed headers on
3670 # Canadian crosses, in case the installed compiler is not fully
3671 # compatible with the compiler being built. In this case, it
3672 # would be better to flag an error than risking having
3673 # incompatible object files being constructed. We can't
3674 # guarantee that an error will be flagged, but let's hope the
3675 # compiler will do it, when presented with incompatible header
3676 # files.
3677 fi
3678 fi
3680 case "${target}-${is_cross_compiler}" in
3681 i[[3456789]]86-*-linux*-no)
3682 # Here host == target, so we don't need to build gcc,
3683 # so we don't want to discard standard headers.
3684 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3685 ;;
3686 *)
3687 # If we're building newlib, use its generic headers last, but search
3688 # for any libc-related directories first (so make it the last -B
3689 # switch).
3690 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3692 # If we're building libgloss, find the startup file, simulator library
3693 # and linker script.
3694 case " $target_configdirs " in
3695 *" libgloss "*)
3696 # Look for startup file, simulator library and maybe linker script.
3697 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3698 # Look for libnosys.a in case the target needs it.
3699 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3700 # Most targets have the linker script in the source directory.
3701 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3702 ;;
3703 esac
3704 ;;
3705 esac
3706 ;;
3707 esac
3708 ;;
3709 esac
3711 case "$target" in
3712 x86_64-*mingw* | *-w64-mingw*)
3713 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3714 # however, use a symlink named 'mingw' in ${prefix} .
3715 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3716 ;;
3717 *-mingw*)
3718 # MinGW can't be handled as Cygwin above since it does not use newlib.
3719 FLAGS_FOR_TARGET=$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'
3720 ;;
3721 esac
3723 # Allow the user to override the flags for
3724 # our build compiler if desired.
3725 if test x"${build}" = x"${host}" ; then
3726 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3727 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
3728 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3729 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3730 fi
3732 # On Canadian crosses, we'll be searching the right directories for
3733 # the previously-installed cross compiler, so don't bother to add
3734 # flags for directories within the install tree of the compiler
3735 # being built; programs in there won't even run.
3736 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3737 # Search for pre-installed headers if nothing else fits.
3738 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3739 fi
3741 if test "x${use_gnu_ld}" = x &&
3742 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3743 # Arrange for us to find uninstalled linker scripts.
3744 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3745 fi
3747 # Search for other target-specific linker scripts and such.
3748 case "${target}" in
3749 mep*)
3750 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3751 ;;
3752 # The VxWorks support for shared libraries is getting in
3753 # incrementally. Make sure it doesn't get activated implicitly:
3754 *vxworks*)
3755 if test "${enable_shared-unset}" = unset ; then
3756 enable_shared=no
3757 # So the build of libraries knows ...
3758 target_configargs="${target_configargs} --disable-shared"
3759 # So gcc knows ...
3760 host_configargs="${host_configargs} --disable-shared"
3761 fi
3762 ;;
3763 esac
3765 # Makefile fragments.
3766 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3767 do
3768 eval fragval=\$$frag
3769 if test $fragval != /dev/null; then
3770 eval $frag=${srcdir}/$fragval
3771 fi
3772 done
3773 AC_SUBST_FILE(host_makefile_frag)
3774 AC_SUBST_FILE(target_makefile_frag)
3775 AC_SUBST_FILE(alphaieee_frag)
3776 AC_SUBST_FILE(ospace_frag)
3778 # Miscellanea: directories, flags, etc.
3779 AC_SUBST(RPATH_ENVVAR)
3780 AC_SUBST(GCC_SHLIB_SUBDIR)
3781 AC_SUBST(tooldir)
3782 AC_SUBST(build_tooldir)
3783 AC_SUBST(CONFIGURE_GDB_TK)
3784 AC_SUBST(GDB_TK)
3785 AC_SUBST(INSTALL_GDB_TK)
3787 # Build module lists & subconfigure args.
3788 AC_SUBST(build_configargs)
3789 AC_SUBST(build_configdirs)
3791 # Host module lists & subconfigure args.
3792 AC_SUBST(host_configargs)
3793 AC_SUBST(configdirs)
3794 AC_SUBST(target_configdirs)
3796 # Target module lists & subconfigure args.
3797 AC_SUBST(target_configargs)
3800 # Build tools.
3801 AC_SUBST(AR_FOR_BUILD)
3802 AC_SUBST(AS_FOR_BUILD)
3803 AC_SUBST(CC_FOR_BUILD)
3804 AC_SUBST(CFLAGS_FOR_BUILD)
3805 AC_SUBST(CPP_FOR_BUILD)
3806 AC_SUBST(CPPFLAGS_FOR_BUILD)
3807 AC_SUBST(CXXFLAGS_FOR_BUILD)
3808 AC_SUBST(CXX_FOR_BUILD)
3809 AC_SUBST(DLLTOOL_FOR_BUILD)
3810 AC_SUBST(DSYMUTIL_FOR_BUILD)
3811 AC_SUBST(GFORTRAN_FOR_BUILD)
3812 AC_SUBST(GOC_FOR_BUILD)
3813 AC_SUBST(GDC_FOR_BUILD)
3814 AC_SUBST(LDFLAGS_FOR_BUILD)
3815 AC_SUBST(LD_FOR_BUILD)
3816 AC_SUBST(NM_FOR_BUILD)
3817 AC_SUBST(RANLIB_FOR_BUILD)
3818 AC_SUBST(WINDMC_FOR_BUILD)
3819 AC_SUBST(WINDRES_FOR_BUILD)
3821 # Generate default definitions for YACC, M4, LEX and other programs that run
3822 # on the build machine. These are used if the Makefile can't locate these
3823 # programs in objdir.
3824 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3826 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3827 case " $build_configdirs " in
3828 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3829 esac
3831 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3832 case " $build_configdirs " in
3833 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3834 esac
3836 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3837 case " $build_configdirs " in
3838 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3839 esac
3841 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3842 case " $build_configdirs " in
3843 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3844 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3845 esac
3847 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3848 case " $build_configdirs " in
3849 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3850 esac
3852 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3853 case " $build_configdirs " in
3854 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3855 *)
3856 changequote(,)
3857 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3858 # higher, else we use the "missing" dummy.
3859 if ${MAKEINFO} --version \
3860 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3861 :
3862 else
3863 MAKEINFO="$MISSING makeinfo"
3864 fi
3865 ;;
3866 changequote([,])
3867 esac
3869 # FIXME: expect and dejagnu may become build tools?
3871 AC_CHECK_PROGS(EXPECT, expect, expect)
3872 case " $configdirs " in
3873 *" expect "*)
3874 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3875 ;;
3876 esac
3878 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3879 case " $configdirs " in
3880 *" dejagnu "*)
3881 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3882 ;;
3883 esac
3886 # Host tools.
3887 NCN_STRICT_CHECK_TOOLS(AR, ar)
3888 NCN_STRICT_CHECK_TOOLS(AS, as)
3889 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3890 NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
3891 NCN_STRICT_CHECK_TOOLS(LD, ld)
3892 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3893 NCN_STRICT_CHECK_TOOLS(NM, nm)
3894 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3895 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3896 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3897 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3898 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3899 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3900 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3901 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3902 AC_SUBST(CC)
3903 AC_SUBST(CXX)
3904 AC_SUBST(CFLAGS)
3905 AC_SUBST(CXXFLAGS)
3906 AC_SUBST(GDC)
3907 AC_SUBST(GDCFLAGS)
3908 GDCFLAGS=${GDCFLAGS-${CFLAGS}}
3909 AC_SUBST(PKG_CONFIG_PATH)
3911 GCC_PLUGIN_OPTION(PLUGIN_OPTION)
3912 AR_PLUGIN_OPTION=
3913 RANLIB_PLUGIN_OPTION=
3914 if test -n "$PLUGIN_OPTION"; then
3915 if $AR --help 2>&1 | grep -q "\--plugin"; then
3916 AR_PLUGIN_OPTION="$PLUGIN_OPTION"
3917 fi
3918 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
3919 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
3920 fi
3921 fi
3922 AC_SUBST(AR_PLUGIN_OPTION)
3923 AC_SUBST(RANLIB_PLUGIN_OPTION)
3925 # Target tools.
3926 AC_ARG_WITH([build-time-tools],
3927 [AS_HELP_STRING([--with-build-time-tools=PATH],
3928 [use given path to find target tools during the build])],
3929 [case x"$withval" in
3930 x/*) ;;
3931 *)
3932 with_build_time_tools=
3933 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3934 ;;
3935 esac],
3936 [with_build_time_tools=])
3938 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3939 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3940 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3941 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3942 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3943 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3944 NCN_STRICT_CHECK_TARGET_TOOLS(GM2_FOR_TARGET, gm2)
3946 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3947 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3948 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3949 ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
3950 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3951 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3952 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3953 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3954 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3955 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3956 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3957 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3958 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3959 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3960 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3962 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3964 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3965 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3966 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3967 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3968 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3969 [gcc/xg++ -B$$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3970 c++)
3971 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3972 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3973 c++)
3974 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3975 GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
3976 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3977 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3978 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3979 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3980 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3981 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3982 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3983 GCC_TARGET_TOOL(gm2, GM2_FOR_TARGET, GM2,
3984 [gcc/gm2 -B$$r/$(HOST_SUBDIR)/gcc/], m2)
3985 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3986 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3987 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3988 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3989 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3990 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3991 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3992 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3993 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3994 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3995 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3997 AC_SUBST(FLAGS_FOR_TARGET)
3998 AC_SUBST(RAW_CXX_FOR_TARGET)
4000 # Certain tools may need extra flags.
4001 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
4002 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
4003 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
4005 # When building target libraries, except in a Canadian cross, we use
4006 # the same toolchain as the compiler we just built.
4007 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
4008 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
4009 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
4010 if test $host = $build; then
4011 case " $configdirs " in
4012 *" gcc "*)
4013 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
4014 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
4015 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
4016 ;;
4017 esac
4018 fi
4020 AC_SUBST(COMPILER_AS_FOR_TARGET)
4021 AC_SUBST(COMPILER_LD_FOR_TARGET)
4022 AC_SUBST(COMPILER_NM_FOR_TARGET)
4024 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
4025 AC_ARG_ENABLE(maintainer-mode,
4026 [AS_HELP_STRING([--enable-maintainer-mode],
4027 [enable make rules and dependencies not useful
4028 (and sometimes confusing) to the casual installer])],
4029 USE_MAINTAINER_MODE=$enableval,
4030 USE_MAINTAINER_MODE=no)
4031 AC_MSG_RESULT($USE_MAINTAINER_MODE)
4032 AC_SUBST(MAINTAINER_MODE_TRUE)
4033 AC_SUBST(MAINTAINER_MODE_FALSE)
4034 if test "$USE_MAINTAINER_MODE" = yes; then
4035 MAINTAINER_MODE_TRUE=
4036 MAINTAINER_MODE_FALSE='#'
4037 else
4038 MAINTAINER_MODE_TRUE='#'
4039 MAINTAINER_MODE_FALSE=
4040 fi
4041 MAINT=$MAINTAINER_MODE_TRUE
4042 AC_SUBST(MAINT)dnl
4044 # ---------------------
4045 # GCC bootstrap support
4046 # ---------------------
4048 # Stage specific cflags for build.
4049 stage1_cflags="-g"
4050 case $build in
4051 vax-*-*)
4052 case ${GCC} in
4053 yes) stage1_cflags="-g -Wa,-J" ;;
4054 *) stage1_cflags="-g -J" ;;
4055 esac ;;
4056 esac
4058 AC_SUBST(stage1_cflags)
4060 # Enable --enable-checking in stage1 of the compiler.
4061 AC_ARG_ENABLE(stage1-checking,
4062 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
4063 [choose additional checking for stage1 of the compiler])],
4064 [stage1_checking=--enable-checking=${enable_stage1_checking}],
4065 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
4066 # For --disable-checking or implicit --enable-checking=release, avoid
4067 # setting --enable-checking=gc in the default stage1 checking for LTO
4068 # bootstraps. See PR62077.
4069 case $BUILD_CONFIG in
4070 *lto*)
4071 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
4072 *)
4073 stage1_checking=--enable-checking=yes,types;;
4074 esac
4075 if test "x$enable_checking" = x && \
4076 test -d ${srcdir}/gcc && \
4077 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
4078 stage1_checking=--enable-checking=yes,types,extra
4079 fi
4080 else
4081 stage1_checking=--enable-checking=$enable_checking,types
4082 fi])
4083 AC_SUBST(stage1_checking)
4085 # Enable -Werror in bootstrap stage2 and later.
4086 AC_ARG_ENABLE(werror,
4087 [AS_HELP_STRING([--enable-werror],
4088 [enable -Werror in bootstrap stage2 and later])],
4089 [
4090 case ${enable_werror} in
4091 yes) stage2_werror_flag="--enable-werror-always" ;;
4092 *) stage2_werror_flag="" ;;
4093 esac
4094 ],
4095 [
4096 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
4097 case $BUILD_CONFIG in
4098 bootstrap-debug)
4099 stage2_werror_flag="--enable-werror-always" ;;
4100 "")
4101 stage2_werror_flag="--enable-werror-always" ;;
4102 esac
4103 fi
4104 ])
4106 AC_SUBST(stage2_werror_flag)
4108 # Specify what files to not compare during bootstrap.
4110 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
4111 compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/M2Version*"
4112 compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/SYSTEM*"
4113 compare_exclusions="$compare_exclusions | gcc/m2/gm2version*"
4114 case "$target" in
4115 hppa*64*-*-hpux*) ;;
4116 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
4117 esac
4118 AC_SUBST(compare_exclusions)
4120 AC_CONFIG_FILES([Makefile],
4121 [sed "$extrasub_build" Makefile |
4122 sed "$extrasub_host" |
4123 sed "$extrasub_target" > mf$$
4124 mv -f mf$$ Makefile],
4125 [extrasub_build="$extrasub_build"
4126 extrasub_host="$extrasub_host"
4127 extrasub_target="$extrasub_target"])
4128 AC_OUTPUT