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.
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.
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.
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
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 -- "$progname" "$@"
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'/"` ;;
55 # Add the quoted argument to the list.
56 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
58 if test "$silent" = yes; then
59 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
61 # Remove the initial space we just introduced and, as these will be
62 # expanded by make, quote '$'.
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
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
75 test "$host_noncanonical" = "$target_noncanonical" &&
76 test "$program_prefix$program_suffix$program_transform_name" = \
78 program_transform_name=s,y,y,
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.
93 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
95 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
97 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
98 INSTALL="${srcpwd}/install-sh -c"
101 # Set srcdir to "." if that's what it is.
102 # This is important for multilib support.
104 if test "${pwd}" = "${srcpwd}" ; then
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
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
136 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf libsframe"
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 \
156 target-libstdc++-v3 \
157 target-libsanitizer \
170 # these tools are built using the target libraries, and are intended to
171 # run only in the target environment
173 # note: any program that *uses* libraries that are in the "target_libraries"
174 # list belongs in this list.
176 target_tools="target-rda"
178 ################################################################################
180 ## All tools belong in one of the four categories, and are assigned above
181 ## We assign ${configdirs} this way to remove all embedded newlines. This
182 ## is important because configure will choke if they ever get through.
183 ## ${configdirs} is directories we build using the host tools.
184 ## ${target_configdirs} is directories we build using the target tools.
185 configdirs=`echo ${host_libs} ${host_tools}`
186 target_configdirs=`echo ${target_libraries} ${target_tools}`
187 build_configdirs=`echo ${build_libs} ${build_tools}`
189 m4_divert_text([PARSE_ARGS],
192 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
193 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
194 m4_popdef([AS_MESSAGE_LOG_FD])dnl
197 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
200 ################################################################################
202 srcname="gnu development package"
204 # This gets set non-empty for some net releases of packages.
207 # Define is_cross_compiler to save on calls to 'test'.
209 if test x"${host}" = x"${target}" ; then
212 is_cross_compiler=yes
215 # Find the build and target subdir names.
217 # Be sure to cover against remnants of an in-tree build.
218 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
219 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
220 Use a pristine source tree when building in a separate tree])
223 # Skipdirs are removed silently.
225 # Noconfigdirs are removed loudly.
229 # Make sure we don't let GNU ld be added if we didn't want it.
230 if test x$with_gnu_ld = xno ; then
232 noconfigdirs="$noconfigdirs ld gold"
236 # Make sure we don't let GNU as be added if we didn't want it.
237 if test x$with_gnu_as = xno ; then
239 noconfigdirs="$noconfigdirs gas"
243 AC_ARG_WITH(system-zlib,
244 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
245 # Make sure we don't let ZLIB be added if we didn't want it.
246 if test x$with_system_zlib = xyes ; then
248 noconfigdirs="$noconfigdirs zlib"
251 # Don't compile the bundled readline/libreadline.a if --with-system-readline
253 if test x$with_system_readline = xyes ; then
254 noconfigdirs="$noconfigdirs readline"
258 [AS_HELP_STRING([--with-zstd], [Support zstd compressed debug sections (default=auto)])])
260 # some tools are so dependent upon X11 that if we're not building with X,
261 # it's not even worth trying to configure, much less build, that tool.
264 yes | "") ;; # the default value for this tree is that X11 is available
266 skipdirs="${skipdirs} tk itcl libgui"
267 # We won't be able to build gdbtk without X.
270 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
273 # Some are only suitable for cross toolchains.
274 # Remove these if host=target.
275 cross_only="target-libgloss target-newlib target-opcodes"
277 case $is_cross_compiler in
278 no) skipdirs="${skipdirs} ${cross_only}" ;;
281 # If both --with-headers and --with-libs are specified, default to
283 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
284 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
285 if test x"${with_newlib}" = x ; then
290 # Recognize --with-newlib/--without-newlib.
291 case ${with_newlib} in
292 no) skipdirs="${skipdirs} target-newlib" ;;
293 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
296 AC_ARG_ENABLE(as-accelerator-for,
297 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
298 [build as offload target compiler.
299 Specify offload host triple by ARG])])
301 AC_ARG_ENABLE(offload-targets,
302 [AS_HELP_STRING([--enable-offload-targets=LIST],
303 [enable offloading to devices from comma-separated LIST of
304 TARGET[=DIR]. Use optional path to find offload target compiler
307 if test x"$enable_offload_targets" = x; then
308 AC_MSG_ERROR([no offload targets specified])
310 ], [enable_offload_targets=])
312 AC_ARG_ENABLE(offload-defaulted,
313 [AS_HELP_STRING([--enable-offload-defaulted]
314 [If enabled, configured but not installed offload compilers and
315 libgomp plugins are silently ignored. Useful for distribution
316 compilers where those are in separate optional packages.])],
317 [enable_offload_defaulted=$enableval],
318 [enable_offload_defaulted=])
320 # Handle --enable-gold, --enable-ld.
321 # --disable-gold [--enable-ld]
322 # Build only ld. Default option.
323 # --enable-gold [--enable-ld]
324 # Build both gold and ld. Install gold as "ld.gold", install ld
325 # as "ld.bfd" and "ld".
326 # --enable-gold=default [--enable-ld]
327 # Build both gold and ld. Install gold as "ld.gold" and "ld",
328 # install ld as "ld.bfd".
329 # --enable-gold[=default] --disable-ld
330 # Build only gold, which is then installed as both "ld.gold" and "ld".
331 # --enable-gold --enable-ld=default
332 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
334 # In other words, ld is default
335 # --enable-gold=default --enable-ld=default
340 [AS_HELP_STRING([[--enable-gold[=ARG]]],
341 [build gold @<:@ARG={default,yes,no}@:>@])],
342 ENABLE_GOLD=$enableval,
344 case "${ENABLE_GOLD}" in
346 # Check for ELF target.
349 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
350 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
351 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
352 | *-*-solaris2* | *-*-nto* | *-*-nacl* | *-*-haiku*)
354 *-*-linux*aout* | *-*-linux*oldld*)
362 if test "$is_elf" = "yes"; then
363 # Check for target supported by gold.
365 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
366 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-* | loongarch*-*-*)
367 configdirs="$configdirs gold"
368 if test x${ENABLE_GOLD} = xdefault; then
379 AC_MSG_ERROR([invalid --enable-gold argument])
384 [AS_HELP_STRING([[--enable-ld[=ARG]]],
385 [build ld @<:@ARG={default,yes,no}@:>@])],
386 ENABLE_LD=$enableval,
389 case "${ENABLE_LD}" in
391 if test x${default_ld} != x; then
392 AC_MSG_ERROR([either gold or ld can be the default ld])
398 if test x${ENABLE_GOLD} != xyes; then
399 AC_MSG_WARN([neither ld nor gold are enabled])
401 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
404 AC_MSG_ERROR([invalid --enable-ld argument])
408 AC_ARG_ENABLE(gprofng,
409 [AS_HELP_STRING([[--enable-gprofng[=ARG]]],
410 [build gprofng @<:@ARG={yes,no}@:>@])],
411 enable_gprofng=$enableval,
413 if test "$enable_gprofng" = "yes"; then
415 x86_64-*-linux* | i?86-*-linux* | aarch64-*-linux*)
416 configdirs="$configdirs gprofng"
423 # Decide the default method for compressing debug sections.
424 # Provide a configure time option to override our default.
425 AC_ARG_ENABLE(compressed_debug_sections,
426 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
427 [Enable compressed debug sections for gas, gold or ld by
430 if test x"$enable_compressed_debug_sections" = xyes; then
431 AC_MSG_ERROR([no program with compressed debug sections specified])
433 ], [enable_compressed_debug_sections=])
435 # Select default compression algorithm.
436 AC_ARG_ENABLE(default_compressed_debug_sections_algorithm,
437 [AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}],
438 [Default compression algorithm for --enable-compressed-debug-sections.])],
439 [], [default_compressed_debug_sections_algorithm=])
441 # Configure extra directories which are host specific
445 configdirs="$configdirs libtermcap" ;;
448 # A target can indicate whether a language isn't supported for some reason.
449 # Only spaces may be used in this macro; not newlines or tabs.
450 unsupported_languages=
452 # Remove more programs from consideration, based on the host or
453 # target this usually means that a port of the program doesn't
457 i[[3456789]]86-*-msdosdjgpp*)
458 noconfigdirs="$noconfigdirs tcl tk itcl"
462 # Default to --disable-year2038 until we can handle differences between
463 # projects that use gnulib (which understands year 2038) and projects that
465 AC_ARG_ENABLE(year2038,
466 AS_HELP_STRING([--enable-year2038],
467 [enable support for timestamps past the year 2038]),
468 ENABLE_YEAR2038=$enableval,
471 if test "${ENABLE_YEAR2038}" = "no" ; then
475 AC_ARG_ENABLE(libquadmath,
476 AS_HELP_STRING([--disable-libquadmath],
477 [do not build libquadmath directory]),
478 ENABLE_LIBQUADMATH=$enableval,
479 ENABLE_LIBQUADMATH=yes)
480 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
481 noconfigdirs="$noconfigdirs target-libquadmath"
485 AC_ARG_ENABLE(libquadmath-support,
486 AS_HELP_STRING([--disable-libquadmath-support],
487 [disable libquadmath support for Fortran]),
488 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
489 ENABLE_LIBQUADMATH_SUPPORT=yes)
490 enable_libquadmath_support=
491 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
492 enable_libquadmath_support=no
496 AC_ARG_ENABLE(libada,
497 [AS_HELP_STRING([--enable-libada], [build libada directory])],
498 ENABLE_LIBADA=$enableval,
500 if test "${ENABLE_LIBADA}" != "yes" ; then
501 noconfigdirs="$noconfigdirs gnattools"
504 AC_ARG_ENABLE(libgm2,
505 [AS_HELP_STRING([--enable-libgm2], [build libgm2 directory])],
506 ENABLE_LIBGM2=$enableval,
508 if test "${ENABLE_LIBGM2}" != "yes" ; then
509 noconfigdirs="$noconfigdirs gm2tools"
512 AC_ARG_ENABLE(libssp,
513 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
514 ENABLE_LIBSSP=$enableval,
517 AC_ARG_ENABLE(libstdcxx,
518 AS_HELP_STRING([--disable-libstdcxx],
519 [do not build libstdc++-v3 directory]),
520 ENABLE_LIBSTDCXX=$enableval,
521 ENABLE_LIBSTDCXX=default)
522 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
523 noconfigdirs="$noconfigdirs target-libstdc++-v3"
526 # Enable libgomp by default on hosted POSIX systems, and a few others.
527 if test x$enable_libgomp = x ; then
529 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
531 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
533 *-*-solaris2* | *-*-hpux11*)
535 *-*-darwin* | *-*-aix*)
537 nvptx*-*-* | amdgcn*-*-*)
540 noconfigdirs="$noconfigdirs target-libgomp"
545 # Disable libatomic on unsupported systems.
546 if test -d ${srcdir}/libatomic; then
547 if test x$enable_libatomic = x; then
548 AC_MSG_CHECKING([for libatomic support])
549 if (srcdir=${srcdir}/libatomic; \
550 . ${srcdir}/configure.tgt; \
551 test -n "$UNSUPPORTED")
554 noconfigdirs="$noconfigdirs target-libatomic"
561 # Disable libitm on unsupported systems.
562 if test -d ${srcdir}/libitm; then
563 if test x$enable_libitm = x; then
564 AC_MSG_CHECKING([for libitm support])
565 if (srcdir=${srcdir}/libitm; \
566 . ${srcdir}/configure.tgt; \
567 test -n "$UNSUPPORTED")
570 noconfigdirs="$noconfigdirs target-libitm"
577 # Disable libsanitizer on unsupported systems.
578 if test -d ${srcdir}/libsanitizer; then
579 if test x$enable_libsanitizer = x; then
580 AC_MSG_CHECKING([for libsanitizer support])
581 if (srcdir=${srcdir}/libsanitizer; \
582 . ${srcdir}/configure.tgt; \
583 test -n "$UNSUPPORTED")
586 noconfigdirs="$noconfigdirs target-libsanitizer"
593 # Disable libvtv on unsupported systems.
594 if test -d ${srcdir}/libvtv; then
595 if test x$enable_libvtv = x; then
596 AC_MSG_CHECKING([for libvtv support])
597 if (srcdir=${srcdir}/libvtv; \
598 . ${srcdir}/configure.tgt; \
599 test "$VTV_SUPPORTED" != "yes")
602 noconfigdirs="$noconfigdirs target-libvtv"
609 # Disable libquadmath for some systems.
612 noconfigdirs="$noconfigdirs target-libquadmath"
614 # libquadmath is unused on AIX and libquadmath build process use of
615 # LD_LIBRARY_PATH can break AIX bootstrap.
616 powerpc-*-aix* | rs6000-*-aix*)
617 noconfigdirs="$noconfigdirs target-libquadmath"
621 # Disable libssp for some systems.
624 # No hosted I/O support.
625 noconfigdirs="$noconfigdirs target-libssp"
628 noconfigdirs="$noconfigdirs target-libssp"
630 powerpc-*-aix* | rs6000-*-aix*)
631 noconfigdirs="$noconfigdirs target-libssp"
634 # No hosted I/O support.
635 noconfigdirs="$noconfigdirs target-libssp"
638 # libssp uses a misaligned load to trigger a fault, but the RL78
639 # doesn't fault for those - instead, it gives a build-time error
640 # for explicit misaligned loads.
641 noconfigdirs="$noconfigdirs target-libssp"
644 # No hosted I/O support.
645 noconfigdirs="$noconfigdirs target-libssp"
649 # Disable libstdc++-v3 for some systems.
650 # Allow user to override this if they pass --enable-libstdcxx
651 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
654 # VxWorks uses the Dinkumware C++ library.
655 noconfigdirs="$noconfigdirs target-libstdc++-v3"
658 # Not ported/fails to build when using newlib.
659 noconfigdirs="$noconfigdirs target-libstdc++-v3"
662 # the C++ libraries don't build on top of CE's C libraries
663 noconfigdirs="$noconfigdirs target-libstdc++-v3"
666 noconfigdirs="$noconfigdirs target-libstdc++-v3"
669 noconfigdirs="$noconfigdirs target-libstdc++-v3"
672 noconfigdirs="$noconfigdirs target-libstdc++-v3"
677 # Disable C++ on systems where it is known to not work.
678 # For testing, you can override this with --enable-languages=c++.
679 case ,${enable_languages}, in
685 unsupported_languages="$unsupported_languages c++"
691 # Disable Objc on systems where it is known to not work.
692 # For testing, you can override this with --enable-languages=objc.
693 case ,${enable_languages}, in
699 unsupported_languages="$unsupported_languages objc"
705 # Disable D on systems where it is known to not work.
706 # For testing, you can override this with --enable-languages=d.
707 case ,${enable_languages}, in
713 unsupported_languages="$unsupported_languages d"
719 # Disable libphobos on unsupported systems.
720 # For testing, you can override this with --enable-libphobos.
721 if test -d ${srcdir}/libphobos; then
722 if test x$enable_libphobos = x; then
723 AC_MSG_CHECKING([for libphobos support])
724 if (srcdir=${srcdir}/libphobos; \
725 . ${srcdir}/configure.tgt; \
726 test "$LIBPHOBOS_SUPPORTED" != "yes")
729 noconfigdirs="$noconfigdirs target-libphobos"
736 # Disable Fortran for some systems.
739 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
740 unsupported_languages="$unsupported_languages fortran"
743 unsupported_languages="$unsupported_languages fortran"
747 # Disable libffi for some systems.
751 i[[3456789]]86-*-darwin*)
753 x86_64-*-darwin[[912]]*)
756 noconfigdirs="$noconfigdirs target-libffi"
759 noconfigdirs="$noconfigdirs target-libffi"
762 noconfigdirs="$noconfigdirs target-libffi"
765 noconfigdirs="$noconfigdirs target-libffi"
768 noconfigdirs="$noconfigdirs target-libffi"
771 noconfigdirs="$noconfigdirs target-libffi"
774 noconfigdirs="$noconfigdirs target-libffi"
777 noconfigdirs="$noconfigdirs target-libffi"
780 noconfigdirs="$noconfigdirs target-libffi"
783 noconfigdirs="$noconfigdirs target-libffi"
786 noconfigdirs="$noconfigdirs target-libffi"
789 noconfigdirs="$noconfigdirs target-libffi"
792 noconfigdirs="$noconfigdirs target-libffi"
794 cris-*-* | crisv32-*-*)
798 *) # See PR46792 regarding target-libffi.
799 noconfigdirs="$noconfigdirs target-libffi";;
803 noconfigdirs="$noconfigdirs target-libffi"
808 noconfigdirs="$noconfigdirs target-libffi"
811 noconfigdirs="$noconfigdirs target-libffi"
813 i[[3456789]]86-w64-mingw*)
814 noconfigdirs="$noconfigdirs target-libffi"
816 i[[3456789]]86-*-mingw*)
817 noconfigdirs="$noconfigdirs target-libffi"
820 noconfigdirs="$noconfigdirs target-libffi"
823 noconfigdirs="$noconfigdirs target-libffi"
830 noconfigdirs="$noconfigdirs target-libffi"
833 noconfigdirs="$noconfigdirs target-libffi"
837 # Disable the go frontend on systems where it is known to not work. Please keep
838 # this in sync with contrib/config-list.mk.
840 *-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
841 unsupported_languages="$unsupported_languages go"
845 # Only allow gdbserver on some systems.
846 if test -d ${srcdir}/gdbserver; then
847 if test x$enable_gdbserver = x; then
848 AC_MSG_CHECKING([for gdbserver support])
849 if (srcdir=${srcdir}/gdbserver; \
850 . ${srcdir}/configure.srv; \
851 test -n "$UNSUPPORTED")
854 noconfigdirs="$noconfigdirs gdbserver"
861 # Disable libgo for some systems where it is known to not work.
862 # For testing, you can easily override this with --enable-libgo.
863 if test x$enable_libgo = x; then
867 noconfigdirs="$noconfigdirs target-libgo"
869 *-*-cygwin* | *-*-mingw*)
870 noconfigdirs="$noconfigdirs target-libgo"
873 noconfigdirs="$noconfigdirs target-libgo"
878 # Default libgloss CPU subdirectory.
879 libgloss_dir="$target_cpu"
882 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
891 cris-*-* | crisv32-*-*)
901 libgloss_dir=loongarch
903 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
923 # Disable newlib and libgloss for various target OSes.
926 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
928 i[[3456789]]86-*-linux*)
929 # This section makes it possible to build newlib natively on linux.
930 # If we are using a cross compiler then don't configure newlib.
931 if test x${is_cross_compiler} != xno ; then
932 noconfigdirs="$noconfigdirs target-newlib"
934 noconfigdirs="$noconfigdirs target-libgloss"
935 # If we are not using a cross compiler, do configure newlib.
936 # Note however, that newlib will only be configured in this situation
937 # if the --with-newlib option has been given, because otherwise
938 # 'target-newlib' will appear in skipdirs.
940 i[[3456789]]86-*-rdos*)
941 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
943 sh*-*-pe|mips*-*-pe|arm-wince-pe)
944 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
947 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
950 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
953 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
956 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
959 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
962 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
965 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
967 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
968 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
971 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
974 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
977 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
980 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
983 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
986 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
989 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
997 noconfigdirs="$noconfigdirs ld gas gdb gprof"
998 noconfigdirs="$noconfigdirs sim target-rda"
1003 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1004 noconfigdirs="$noconfigdirs sim target-rda"
1007 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1008 noconfigdirs="$noconfigdirs sim target-rda"
1010 i[[3456789]]86-*-darwin*)
1011 noconfigdirs="$noconfigdirs ld gprof"
1012 noconfigdirs="$noconfigdirs sim target-rda"
1014 x86_64-*-darwin[[912]]*)
1015 noconfigdirs="$noconfigdirs ld gas gprof"
1016 noconfigdirs="$noconfigdirs sim target-rda"
1019 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1020 noconfigdirs="$noconfigdirs sim target-rda"
1025 if test "x$with_gmp" = x \
1026 && ! test -d ${srcdir}/gmp \
1027 && test -f /usr/local/include/gmp.h; then
1032 # Remove unsupported stuff on all kaOS configurations.
1033 noconfigdirs="$noconfigdirs target-libgloss"
1040 noconfigdirs="$noconfigdirs target-libgloss"
1043 noconfigdirs="$noconfigdirs target-libgloss"
1045 # The tpf target doesn't support gdb yet.
1047 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
1050 noconfigdirs="$noconfigdirs target-rda"
1055 # ld works, but does not support shared libraries.
1056 # gas doesn't generate exception information.
1057 noconfigdirs="$noconfigdirs gas ld"
1060 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1063 # newlib is not 64 bit ready
1064 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1067 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1069 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1070 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1073 noconfigdirs="$noconfigdirs sim"
1076 noconfigdirs="$noconfigdirs target-libgloss"
1079 noconfigdirs="$noconfigdirs ld target-libgloss"
1082 if test x${with_avrlibc} != xno; then
1083 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1086 c4x-*-* | tic4x-*-*)
1087 noconfigdirs="$noconfigdirs target-libgloss"
1090 noconfigdirs="$noconfigdirs target-libgloss gdb"
1093 noconfigdirs="$noconfigdirs target-libgloss"
1096 noconfigdirs="$noconfigdirs gdb"
1099 noconfigdirs="$noconfigdirs gdb"
1102 noconfigdirs="$noconfigdirs target-rda gprof"
1105 noconfigdirs="$noconfigdirs"
1108 noconfigdirs="$noconfigdirs target-libgloss"
1111 noconfigdirs="$noconfigdirs target-libgloss"
1113 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1116 noconfigdirs="$noconfigdirs gdb"
1119 noconfigdirs="$noconfigdirs gdb ld"
1127 hppa*-*-openbsd* | \
1133 noconfigdirs="$noconfigdirs ld"
1136 noconfigdirs="$noconfigdirs gdb"
1139 # No gdb support yet.
1140 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1143 # No ld support yet.
1144 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1147 # No ld support yet.
1148 noconfigdirs="$noconfigdirs libgui itcl ld"
1150 i[[3456789]]86-w64-mingw*)
1152 i[[3456789]]86-*-mingw*)
1153 target_configdirs="$target_configdirs target-winsup"
1156 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1157 noconfigdirs="$noconfigdirs target-libgloss"
1158 # always build newlib if winsup directory is present.
1159 if test -d "$srcdir/winsup/cygwin"; then
1160 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1161 elif test -d "$srcdir/newlib"; then
1162 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1165 i[[3456789]]86-*-pe)
1166 noconfigdirs="$noconfigdirs target-libgloss"
1168 i[[3456789]]86-*-sco3.2v5*)
1169 # The linker does not yet know about weak symbols in COFF,
1170 # and is not configured to handle mixed ELF and COFF.
1171 noconfigdirs="$noconfigdirs ld target-libgloss"
1173 i[[3456789]]86-*-sco*)
1174 noconfigdirs="$noconfigdirs gprof target-libgloss"
1176 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1177 noconfigdirs="$noconfigdirs target-libgloss"
1179 i[[3456789]]86-*-sysv4*)
1180 noconfigdirs="$noconfigdirs target-libgloss"
1182 i[[3456789]]86-*-beos*)
1183 noconfigdirs="$noconfigdirs gdb"
1185 i[[3456789]]86-*-rdos*)
1186 noconfigdirs="$noconfigdirs gdb"
1189 noconfigdirs="$noconfigdirs gdb"
1192 noconfigdirs="$noconfigdirs sim"
1195 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1196 noconfigdirs="$noconfigdirs $target_libraries"
1199 noconfigdirs="$noconfigdirs gdb gprof"
1202 # copied from rs6000-*-* entry
1203 noconfigdirs="$noconfigdirs gprof"
1205 powerpc*-*-winnt* | powerpc*-*-pe*)
1206 target_configdirs="$target_configdirs target-winsup"
1207 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1208 # always build newlib.
1209 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1211 # This is temporary until we can link against shared libraries
1212 powerpcle-*-solaris*)
1213 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1216 noconfigdirs="$noconfigdirs gdb"
1219 noconfigdirs="$noconfigdirs gprof"
1222 noconfigdirs="$noconfigdirs gprof"
1225 noconfigdirs="$noconfigdirs gprof"
1228 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1231 noconfigdirs="$noconfigdirs gprof"
1233 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1234 if test x$with_newlib = xyes; then
1235 noconfigdirs="$noconfigdirs gprof"
1239 noconfigdirs="$noconfigdirs gprof target-libgloss"
1242 noconfigdirs="$noconfigdirs gprof target-libgloss"
1245 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1249 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1250 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1251 noconfigdirs="$noconfigdirs ld gas gprof"
1254 noconfigdirs="$noconfigdirs gprof"
1257 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1264 noconfigdirs="$noconfigdirs target-libgloss" ;;
1268 if test x${is_cross_compiler} = xno ; then
1273 noconfigdirs="$noconfigdirs sim"
1275 tilepro*-*-* | tilegx*-*-*)
1276 noconfigdirs="$noconfigdirs sim"
1279 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1282 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1285 noconfigdirs="$noconfigdirs ld"
1287 loongarch*-*-linux*)
1290 noconfigdirs="$noconfigdirs gprof"
1294 # If we aren't building newlib, then don't build libgloss, since libgloss
1295 # depends upon some newlib header files.
1296 case "${noconfigdirs}" in
1297 *target-libgloss*) ;;
1298 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1301 # Work in distributions that contain no compiler tools, like Autoconf.
1302 host_makefile_frag=/dev/null
1303 if test -d ${srcdir}/config ; then
1305 i[[3456789]]86-*-msdosdjgpp*)
1306 host_makefile_frag="config/mh-djgpp"
1309 ACX_CHECK_CYGWIN_CAT_WORKS
1310 host_makefile_frag="config/mh-cygwin"
1313 host_makefile_frag="config/mh-mingw"
1316 host_makefile_frag="config/mh-alpha-linux"
1319 host_makefile_frag="config/mh-pa"
1322 host_makefile_frag="config/mh-pa"
1324 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
1325 host_makefile_frag="config/mh-darwin"
1328 host_makefile_frag="config/mh-ppc-aix"
1331 host_makefile_frag="config/mh-ppc-aix"
1336 if test "${build}" != "${host}" ; then
1337 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1338 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1339 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1340 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
1341 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1342 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
1343 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1344 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1345 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1346 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1347 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1348 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1349 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1350 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1351 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1353 AR_FOR_BUILD="\$(AR)"
1354 AS_FOR_BUILD="\$(AS)"
1355 CC_FOR_BUILD="\$(CC)"
1356 CXX_FOR_BUILD="\$(CXX)"
1357 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
1358 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1359 GOC_FOR_BUILD="\$(GOC)"
1360 GDC_FOR_BUILD="\$(GDC)"
1361 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1362 LD_FOR_BUILD="\$(LD)"
1363 NM_FOR_BUILD="\$(NM)"
1364 RANLIB_FOR_BUILD="\$(RANLIB)"
1365 WINDRES_FOR_BUILD="\$(WINDRES)"
1366 WINDMC_FOR_BUILD="\$(WINDMC)"
1372 # We must set the default linker to the linker used by gcc for the correct
1373 # operation of libtool. If LD is not defined and we are using gcc, try to
1374 # set the LD default to the ld used by gcc.
1375 if test -z "$LD"; then
1376 if test "$GCC" = yes; then
1379 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1381 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1383 case $gcc_prog_ld in
1384 # Accept absolute paths.
1385 [[\\/]* | [A-Za-z]:[\\/]*)]
1386 LD="$gcc_prog_ld" ;;
1391 # Check whether -static-libstdc++ -static-libgcc is supported.
1393 if test "$GCC" = yes; then
1394 saved_LDFLAGS="$LDFLAGS"
1396 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1397 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1399 AC_LINK_IFELSE([AC_LANG_SOURCE([
1400 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1401 #error -static-libstdc++ not implemented
1404 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1405 [AC_MSG_RESULT([no])])
1408 LDFLAGS="$saved_LDFLAGS"
1413 ACX_PROG_CMP_IGNORE_INITIAL
1415 AC_ARG_ENABLE([bootstrap],
1416 [AS_HELP_STRING([--enable-bootstrap],
1417 [enable bootstrapping @<:@yes if native build@:>@])],,
1418 enable_bootstrap=default)
1420 # Issue errors and warnings for invalid/strange bootstrap combinations.
1421 if test -r $srcdir/gcc/configure; then
1427 case "$have_compiler:$host:$target:$enable_bootstrap" in
1430 # Default behavior. Enable bootstrap if we have a compiler
1431 # and we are in a native configuration.
1432 yes:$build:$build:default)
1433 enable_bootstrap=yes ;;
1436 enable_bootstrap=no ;;
1438 # We have a compiler and we are in a native configuration, bootstrap is ok
1439 yes:$build:$build:yes)
1442 # Other configurations, but we have a compiler. Assume the user knows
1445 AC_MSG_WARN([trying to bootstrap a cross compiler])
1448 # No compiler: if they passed --enable-bootstrap explicitly, fail
1450 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1452 # Fail if wrong command line
1454 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1458 # When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
1459 # C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1460 # require C++11 (or higher).
1461 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1462 CXX="$CXX -std=c++11"
1463 elif test "$have_compiler" = yes; then
1464 AX_CXX_COMPILE_STDCXX(11)
1466 if test "${build}" != "${host}"; then
1467 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1471 AC_ARG_ENABLE([pgo-build],
1472 [AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1473 [enable the PGO build])],
1474 [enable_pgo_build=$enableval],
1475 [enable_pgo_build=no])
1477 # Issue errors and warnings for invalid/strange PGO build combinations.
1478 case "$have_compiler:$host:$target:$enable_pgo_build" in
1481 # Allow the PGO build only if we aren't building a compiler and
1482 # we are in a native configuration.
1483 no:$build:$build:yes | no:$build:$build:lto) ;;
1485 # Disallow the PGO bootstrap if we are building a compiler.
1486 yes:*:*:yes | yes:*:*:lto)
1487 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1490 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1494 if test "$enable_pgo_build" != "no"; then
1495 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1496 old_CFLAGS="$CFLAGS"
1497 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1498 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1499 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1500 [PGO_BUILD_GEN_CFLAGS=])
1501 CFLAGS="$old_CFLAGS"
1502 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1503 AC_MSG_RESULT([yes])
1504 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1507 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1510 if test "$enable_pgo_build" = "lto"; then
1511 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1512 old_CFLAGS="$CFLAGS"
1513 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1514 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1515 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1516 [PGO_BUILD_LTO_CFLAGS=])
1517 CFLAGS="$old_CFLAGS"
1518 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1519 AC_MSG_RESULT([yes])
1522 AC_MSG_WARN([LTO is disabled for the PGO build])
1526 AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1527 AC_SUBST(PGO_BUILD_USE_CFLAGS)
1528 AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1530 # Used for setting $lt_cv_objdir
1533 # Check for GMP, MPFR and MPC
1536 if test -d ${srcdir}/gcc ; then
1540 if test -d ${srcdir}/gdb ; then
1541 if test "x$enable_gdb" != xno; then
1546 gmplibs="-lmpfr -lgmp"
1547 if test x"$require_mpc" = "xyes" ; then
1548 gmplibs="-lmpc $gmplibs"
1553 # Specify a location for mpc
1554 # check for this first so it ends up on the link line before mpfr.
1556 [AS_HELP_STRING([--with-mpc=PATH],
1557 [specify prefix directory for installed MPC package.
1558 Equivalent to --with-mpc-include=PATH/include
1559 plus --with-mpc-lib=PATH/lib])])
1560 AC_ARG_WITH(mpc-include,
1561 [AS_HELP_STRING([--with-mpc-include=PATH],
1562 [specify directory for installed MPC include files])])
1563 AC_ARG_WITH(mpc-lib,
1564 [AS_HELP_STRING([--with-mpc-lib=PATH],
1565 [specify directory for the installed MPC library])])
1567 if test "x$with_mpc" != x; then
1568 gmplibs="-L$with_mpc/lib $gmplibs"
1569 gmpinc="-I$with_mpc/include $gmpinc"
1571 if test "x$with_mpc_include" != x; then
1572 gmpinc="-I$with_mpc_include $gmpinc"
1574 if test "x$with_mpc_lib" != x; then
1575 gmplibs="-L$with_mpc_lib $gmplibs"
1577 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1578 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1579 gmpinc='-I$$s/mpc/src '"$gmpinc"
1580 # Do not test the mpc version. Assume that it is sufficient, since
1581 # it is in the source tree, and the library has not been built yet
1582 # but it would be included on the link line in the version check below
1583 # hence making the test fail.
1587 # Specify a location for mpfr
1588 # check for this first so it ends up on the link line before gmp.
1590 [AS_HELP_STRING([--with-mpfr=PATH],
1591 [specify prefix directory for installed MPFR package.
1592 Equivalent to --with-mpfr-include=PATH/include
1593 plus --with-mpfr-lib=PATH/lib])])
1594 AC_ARG_WITH(mpfr-include,
1595 [AS_HELP_STRING([--with-mpfr-include=PATH],
1596 [specify directory for installed MPFR include files])])
1597 AC_ARG_WITH(mpfr-lib,
1598 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1599 [specify directory for the installed MPFR library])])
1601 if test "x$with_mpfr" != x; then
1602 gmplibs="-L$with_mpfr/lib $gmplibs"
1603 gmpinc="-I$with_mpfr/include $gmpinc"
1605 if test "x$with_mpfr_include" != x; then
1606 gmpinc="-I$with_mpfr_include $gmpinc"
1608 if test "x$with_mpfr_lib" != x; then
1609 gmplibs="-L$with_mpfr_lib $gmplibs"
1611 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1612 # MPFR v3.1.0 moved the sources into a src sub-directory.
1613 if ! test -d ${srcdir}/mpfr/src; then
1615 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1617 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1618 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1619 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1620 # Do not test the mpfr version. Assume that it is sufficient, since
1621 # it is in the source tree, and the library has not been built yet
1622 # but it would be included on the link line in the version check below
1623 # hence making the test fail.
1627 # Specify a location for gmp
1629 [AS_HELP_STRING([--with-gmp=PATH],
1630 [specify prefix directory for the installed GMP package.
1631 Equivalent to --with-gmp-include=PATH/include
1632 plus --with-gmp-lib=PATH/lib])])
1633 AC_ARG_WITH(gmp-include,
1634 [AS_HELP_STRING([--with-gmp-include=PATH],
1635 [specify directory for installed GMP include files])])
1636 AC_ARG_WITH(gmp-lib,
1637 [AS_HELP_STRING([--with-gmp-lib=PATH],
1638 [specify directory for the installed GMP library])])
1641 if test "x$with_gmp" != x; then
1642 gmplibs="-L$with_gmp/lib $gmplibs"
1643 gmpinc="-I$with_gmp/include $gmpinc"
1645 if test "x$with_gmp_include" != x; then
1646 gmpinc="-I$with_gmp_include $gmpinc"
1648 if test "x$with_gmp_lib" != x; then
1649 gmplibs="-L$with_gmp_lib $gmplibs"
1651 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1652 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1653 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1654 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1655 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1656 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1657 # Do not test the gmp version. Assume that it is sufficient, since
1658 # it is in the source tree, and the library has not been built yet
1659 # but it would be included on the link line in the version check below
1660 # hence making the test fail.
1664 if test "x$require_gmp" = xyes && test "x$have_gmp" = xno; then
1666 saved_CFLAGS="$CFLAGS"
1667 CFLAGS="$CFLAGS $gmpinc"
1668 # Check for the recommended and required versions of GMP.
1669 AC_MSG_CHECKING([for the correct version of gmp.h])
1670 AC_TRY_COMPILE([#include "gmp.h"],[
1671 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1672 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1673 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1676 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1677 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1678 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1679 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1682 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1683 [AC_MSG_RESULT([no]); have_gmp=no])
1685 # If we have GMP, check the MPFR version.
1686 if test x"$have_gmp" = xyes; then
1687 # Check for the recommended and required versions of MPFR.
1688 AC_MSG_CHECKING([for the correct version of mpfr.h])
1689 AC_TRY_COMPILE([#include <gmp.h>
1690 #include <mpfr.h>],[
1691 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
1694 ], [AC_TRY_COMPILE([#include <gmp.h>
1695 #include <mpfr.h>],[
1696 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
1699 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1700 [AC_MSG_RESULT([no]); have_gmp=no])
1703 # Check for the MPC header version.
1704 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes ; then
1705 # Check for the recommended and required versions of MPC.
1706 AC_MSG_CHECKING([for the correct version of mpc.h])
1707 AC_TRY_COMPILE([#include <mpc.h>],[
1708 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1711 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1712 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1715 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1716 [AC_MSG_RESULT([no]); have_gmp=no])
1719 # Now check the MPFR library.
1720 if test x"$have_gmp" = xyes; then
1722 LIBS="$LIBS $gmplibs"
1723 AC_MSG_CHECKING([for the correct version of the gmp/mpfr libraries])
1724 AC_TRY_LINK([#include <mpfr.h>],[
1730 mpfr_atan2 (n, n, x, MPFR_RNDN);
1731 mpfr_erfc (n, x, MPFR_RNDN);
1732 mpfr_subnormalize (x, t, MPFR_RNDN);
1735 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1739 # Now check the MPC library
1740 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes; then
1742 LIBS="$LIBS $gmplibs"
1743 AC_MSG_CHECKING([for the correct version of the mpc libraries])
1744 AC_TRY_LINK([#include <mpc.h>],[
1747 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1748 mpc_cosh (c, c, MPC_RNDNN);
1749 mpc_pow (c, c, c, MPC_RNDNN);
1750 mpc_acosh (c, c, MPC_RNDNN);
1752 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1756 CFLAGS="$saved_CFLAGS"
1758 # The library versions listed in the error message below should match
1759 # the HARD-minimums enforced above.
1760 if test x$have_gmp != xyes; then
1761 if test -d ${srcdir}/gcc ; then
1762 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
1763 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1764 their locations. Source code for these libraries can be found at
1765 their respective hosting sites as well as at
1766 https://gcc.gnu.org/pub/gcc/infrastructure/. See also
1767 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1768 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1769 make sure that you have installed both the libraries and the header
1770 files. They may be located in separate packages.])
1772 AC_MSG_ERROR([Building GDB requires GMP 4.2+, and MPFR 3.1.0+.
1773 Try the --with-gmp and/or --with-mpfr options to specify
1774 their locations. If you obtained GMP and/or MPFR from a vendor
1775 distribution package, make sure that you have installed both the libraries
1776 and the header files. They may be located in separate packages.])
1781 # Flags needed for both GMP, MPFR and/or MPC.
1784 AC_SUBST(extra_mpfr_configure_flags)
1785 AC_SUBST(extra_mpc_gmp_configure_flags)
1786 AC_SUBST(extra_mpc_mpfr_configure_flags)
1787 AC_SUBST(extra_isl_gmp_configure_flags)
1789 # Libraries to use for stage1 or when not bootstrapping.
1790 AC_ARG_WITH(stage1-libs,
1791 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1792 [if test "$withval" = "no" -o "$withval" = "yes"; then
1795 stage1_libs=$withval
1798 AC_SUBST(stage1_libs)
1800 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1801 # default is yes if gcc is being built; no otherwise. The reason for
1802 # this default is that gdb is sometimes linked against GNU Source
1803 # Highlight, which is a shared library that uses C++ exceptions. In
1804 # this case, -static-libstdc++ will cause crashes.
1805 AC_ARG_WITH(static-standard-libraries,
1806 [AS_HELP_STRING([--with-static-standard-libraries],
1807 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1808 [], [with_static_standard_libraries=auto])
1809 if test "$with_static_standard_libraries" = auto; then
1810 with_static_standard_libraries=$have_compiler
1813 # Linker flags to use for stage1 or when not bootstrapping.
1814 AC_ARG_WITH(stage1-ldflags,
1815 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1816 [if test "$withval" = "no" -o "$withval" = "yes"; then
1819 stage1_ldflags=$withval
1822 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1823 # if supported. But if the user explicitly specified the libraries to use,
1824 # trust that they are doing what they want.
1825 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1826 -a "$have_static_libs" = yes; then
1827 stage1_ldflags="-static-libstdc++ -static-libgcc"
1829 AC_SUBST(stage1_ldflags)
1831 # Libraries to use for stage2 and later builds.
1832 AC_ARG_WITH(boot-libs,
1833 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1834 [if test "$withval" = "no" -o "$withval" = "yes"; then
1837 poststage1_libs=$withval
1840 AC_SUBST(poststage1_libs)
1842 # Linker flags to use for stage2 and later builds.
1843 AC_ARG_WITH(boot-ldflags,
1844 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1845 [linker flags for stage2 and later])],
1846 [if test "$withval" = "no" -o "$withval" = "yes"; then
1849 poststage1_ldflags=$withval
1851 [poststage1_ldflags=
1852 # In stages 2 and 3, default to linking libstdc++ and libgcc
1853 # statically. But if the user explicitly specified the libraries to
1854 # use, trust that they are doing what they want.
1855 if test "$poststage1_libs" = ""; then
1856 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1858 AC_SUBST(poststage1_ldflags)
1860 # GCC GRAPHITE dependency isl.
1861 # Basic setup is inlined here, actual checks are in config/isl.m4
1866 [Specify prefix directory for the installed isl package.
1867 Equivalent to --with-isl-include=PATH/include
1868 plus --with-isl-lib=PATH/lib])])
1870 # Treat --without-isl as a request to disable
1871 # GRAPHITE support and skip all following checks.
1872 if test "x$with_isl" != "xno"; then
1874 dnl Provide configure switches and initialize islinc & isllibs
1875 dnl with user input.
1877 dnl The versions of isl that work for Graphite
1879 dnl Only execute fail-action, if isl has been requested.
1881 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1884 # If the isl check failed, disable builds of in-tree variant of isl
1885 if test "x$with_isl" = xno ||
1886 test "x$gcc_cv_isl" = xno; then
1887 noconfigdirs="$noconfigdirs isl"
1894 # Check for LTO support.
1896 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1897 enable_lto=$enableval,
1898 enable_lto=yes; default_enable_lto=yes)
1900 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1901 build_lto_plugin=yes
1902 ],[if test x"$default_enable_lto" = x"yes" ; then
1904 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1905 # On other non-ELF platforms, LTO has yet to be validated.
1909 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1910 # It would also be nice to check the binutils support, but we don't
1911 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1912 # warn during gcc/ subconfigure; unless you're bootstrapping with
1913 # -flto it won't be needed until after installation anyway.
1915 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1916 *) if test x"$enable_lto" = x"yes"; then
1917 AC_MSG_ERROR([LTO support is not enabled for this target.])
1922 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1923 # Build it unless LTO was explicitly disabled.
1925 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1930 AC_ARG_ENABLE(linker-plugin-configure-flags,
1931 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1932 [additional flags for configuring linker plugins @<:@none@:>@])],
1933 extra_linker_plugin_configure_flags=$enableval,
1934 extra_linker_plugin_configure_flags=)
1935 AC_SUBST(extra_linker_plugin_configure_flags)
1936 AC_ARG_ENABLE(linker-plugin-flags,
1937 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1938 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1939 extra_linker_plugin_flags=$enableval,
1940 extra_linker_plugin_flags=)
1941 AC_SUBST(extra_linker_plugin_flags)
1943 # Handle --enable-host-pie
1944 # If host PIE executables are the default (or must be forced on) for some host,
1945 # we must pass that configuration to the gcc directory.
1947 AC_ARG_ENABLE(host-pie,
1948 [AS_HELP_STRING([--enable-host-pie],
1949 [build position independent host executables])],
1950 [host_pie=$enableval
1953 if test x$host_pie != xyes ; then
1954 # for Darwin20+ this is required.
1955 AC_MSG_WARN([PIE executables are required for the configured host, host-pie setting ignored.])
1957 gcc_host_pie=--enable-host-pie
1963 # Default to PIE (mandatory for aarch64).
1965 gcc_host_pie=--enable-host-pie
1971 AC_SUBST(gcc_host_pie)
1973 # Enable --enable-host-shared.
1974 # Checked early to determine whether jit is an 'all' language
1975 AC_ARG_ENABLE(host-shared,
1976 [AS_HELP_STRING([--enable-host-shared],
1977 [build host code as shared libraries])],
1978 [host_shared=$enableval
1980 x86_64-*-darwin* | aarch64-*-darwin*)
1981 if test x$host_shared != xyes ; then
1982 # PIC is the default, and actually cannot be switched off.
1983 AC_MSG_WARN([PIC code is required for the configured host; host-shared setting ignored.])
1987 if test x$host_pie = xyes -a x$host_shared != xyes ; then
1988 AC_MSG_WARN([PIC code is required for PIE host executables host-shared setting ignored.])
1994 # 64B x86_64 and Aarch64 Darwin default to PIC.
1995 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
1996 # 32B and powerpc64 Darwin must use PIC to link PIE exes.
1997 *-*-darwin*) host_shared=$host_pie ;;
2001 AC_SUBST(host_shared)
2003 if test x$host_shared = xyes; then
2006 # Since host shared is the default for 64b Darwin, and also enabled for
2007 # host_pie, ensure that we present the PIE flag when host_pie is active.
2008 if test x$host_pie = xyes; then
2016 elif test x$host_pie = xyes; then
2024 # If we are building PIC/PIE host executables, and we are building dependent
2025 # libs (e.g. GMP) in-tree those libs need to be configured to generate PIC
2028 if test "$host_shared" = "yes" -o "$host_pie" = "yes"; then
2029 host_libs_picflag='--with-pic'
2031 AC_SUBST(host_libs_picflag)
2033 # By default, C and C++ are the only stage 1 languages.
2034 stage1_languages=,c,
2036 # Target libraries that we bootstrap.
2037 bootstrap_target_libs=,target-libgcc,
2039 # Figure out what language subdirectories are present.
2040 # Look if the user specified --enable-languages="..."; if not, use
2041 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2043 # NB: embedded tabs in this IF block -- do not untabify
2044 if test -d ${srcdir}/gcc; then
2045 if test x"${enable_languages+set}" != xset; then
2046 if test x"${LANGUAGES+set}" = xset; then
2047 enable_languages="${LANGUAGES}"
2048 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
2050 enable_languages=default
2053 if test x"${enable_languages}" = x ||
2054 test x"${enable_languages}" = xyes;
2056 echo configure.ac: --enable-languages needs at least one language argument 1>&2
2060 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2062 # 'f95' is the old name for the 'fortran' language. We issue a warning
2063 # and make the substitution.
2064 case ,${enable_languages}, in
2066 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
2067 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
2071 # If bootstrapping, C++ must be enabled.
2072 case ",$enable_languages,:$enable_bootstrap" in
2075 if test -f ${srcdir}/gcc/cp/config-lang.in; then
2076 enable_languages="${enable_languages},c++"
2078 AC_MSG_ERROR([bootstrapping requires c++ sources])
2083 # First scan to see if an enabled language requires some other language.
2084 # We assume that a given config-lang.in will list all the language
2085 # front ends it requires, even if some are required indirectly.
2086 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2087 case ${lang_frag} in
2089 # The odd quoting in the next line works around
2090 # an apparent bug in bash 1.12 on linux.
2091 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2093 # From the config-lang.in, get $language, $lang_requires, and
2094 # $lang_requires_boot_languages.
2097 lang_requires_boot_languages=
2098 # set srcdir during sourcing lang_frag to the gcc dir.
2099 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
2100 # polutes this shell
2101 saved_srcdir=${srcdir}
2102 srcdir=${srcdir}/gcc . ${lang_frag}
2103 srcdir=${saved_srcdir}
2104 for other in ${lang_requires} ${lang_requires_boot_languages}; do
2105 case ,${enable_languages}, in
2110 echo " \`$other' language required by \`$language'; enabling" 1>&2
2111 enable_languages="${enable_languages},${other}"
2115 for other in ${lang_requires_boot_languages} ; do
2116 if test "$other" != "c"; then
2117 case ,${enable_stage1_languages}, in
2122 case ,${enable_languages}, in
2124 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
2125 enable_stage1_languages="$enable_stage1_languages,${other}"
2136 new_enable_languages=,c,
2138 # If LTO is enabled, add the LTO front end.
2139 if test "$enable_lto" = "yes" ; then
2140 case ,${enable_languages}, in
2142 *) enable_languages="${enable_languages},lto" ;;
2144 if test "${build_lto_plugin}" = "yes" ; then
2145 configdirs="$configdirs lto-plugin"
2149 # If we're building an offloading compiler, add the LTO front end.
2150 if test x"$enable_as_accelerator_for" != x ; then
2151 case ,${enable_languages}, in
2153 *) enable_languages="${enable_languages},lto" ;;
2157 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
2158 potential_languages=,c,
2160 enabled_target_libs=
2161 disabled_target_libs=
2163 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2164 case ${lang_frag} in
2166 # The odd quoting in the next line works around
2167 # an apparent bug in bash 1.12 on linux.
2168 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2170 # From the config-lang.in, get $language, $target_libs,
2171 # $lang_dirs, $boot_language, and $build_by_default
2177 build_by_default=yes
2178 # set srcdir during sourcing. See above about save & restore
2179 saved_srcdir=${srcdir}
2180 srcdir=${srcdir}/gcc . ${lang_frag}
2181 srcdir=${saved_srcdir}
2182 if test x${language} = x; then
2183 echo "${lang_frag} doesn't set \$language." 1>&2
2187 if test "$language" = "c++"; then
2192 # C is always enabled, so no need to add it again
2193 if test "$language" != "c"; then
2194 case ,${enable_languages}, in
2196 # Language was explicitly selected; include it
2200 # All languages are enabled
2204 # 'default' was selected, select it if it is a default language
2205 add_this_lang=${build_by_default}
2210 # Disable languages that need other directories if these aren't available.
2211 for i in $subdir_requires; do
2212 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2213 case ${add_this_lang} in
2215 # Specifically requested language; tell them.
2216 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2219 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2220 add_this_lang=unsupported
2224 add_this_lang=unsupported
2229 # Disable Ada if no preexisting GNAT is available.
2230 case ${add_this_lang}:${language}:${have_gnat} in
2232 # Specifically requested language; tell them.
2233 AC_MSG_ERROR([GNAT is required to build $language])
2236 AC_MSG_WARN([GNAT is required to build $language])
2237 add_this_lang=unsupported
2241 add_this_lang=unsupported
2245 # Disable D if no preexisting GDC is available.
2246 case ${add_this_lang}:${language}:${have_gdc} in
2248 # Specifically requested language; tell them.
2249 AC_MSG_ERROR([GDC is required to build $language])
2252 AC_MSG_WARN([GDC is required to build $language])
2253 add_this_lang=unsupported
2257 add_this_lang=unsupported
2261 # Disable jit if -enable-host-shared not specified
2262 # but not if building for Mingw. All code in Windows
2263 # is position independent code (PIC).
2267 case ${add_this_lang}:${language}:${host_shared} in
2269 # PR jit/64780: explicitly specify --enable-host-shared
2271 Enabling language "jit" requires --enable-host-shared.
2273 --enable-host-shared typically slows the rest of the compiler down by
2274 a few %, so you must explicitly enable it.
2276 If you want to build both the jit and the regular compiler, it is often
2277 best to do this via two separate configure/builds, in separate
2278 directories, to avoid imposing the performance cost of
2279 --enable-host-shared on the regular compiler.])
2282 AC_MSG_WARN([--enable-host-shared required to build $language])
2283 add_this_lang=unsupported
2287 add_this_lang=unsupported
2293 # Disable a language that is unsupported by the target.
2294 case "${add_this_lang}: $unsupported_languages " in
2298 AC_MSG_WARN([${language} not supported for this target])
2299 add_this_lang=unsupported
2303 case $add_this_lang in
2305 # Remove language-dependent dirs.
2306 disabled_target_libs="$disabled_target_libs $target_libs"
2307 noconfigdirs="$noconfigdirs $lang_dirs"
2310 # Remove language-dependent dirs; still show language as supported.
2311 disabled_target_libs="$disabled_target_libs $target_libs"
2312 noconfigdirs="$noconfigdirs $lang_dirs"
2313 potential_languages="${potential_languages}${language},"
2316 new_enable_languages="${new_enable_languages}${language},"
2317 potential_languages="${potential_languages}${language},"
2318 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2319 enabled_target_libs="$enabled_target_libs $target_libs"
2320 case "${boot_language}:,$enable_stage1_languages," in
2321 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2322 # Add to (comma-separated) list of stage 1 languages.
2323 case ",$stage1_languages," in
2324 *,$language,* | ,yes, | ,all,) ;;
2325 *) stage1_languages="${stage1_languages}${language}," ;;
2327 # We need to bootstrap any supporting libraries.
2328 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2337 # Add target libraries which are only needed for disabled languages
2339 if test -n "$disabled_target_libs"; then
2340 for dir in $disabled_target_libs; do
2341 case " $enabled_target_libs " in
2343 *) noconfigdirs="$noconfigdirs $dir" ;;
2348 AC_ARG_ENABLE(stage1-languages,
2349 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2350 [choose additional languages to build during
2351 stage1. Mostly useful for compiler development])],
2352 [case ,${enable_stage1_languages}, in
2354 # Set it to something that will have no effect in the loop below
2355 enable_stage1_languages=c ;;
2357 enable_stage1_languages=`echo $new_enable_languages | \
2358 sed -e "s/^,//" -e "s/,$//" ` ;;
2360 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2361 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2364 # Add "good" languages from enable_stage1_languages to stage1_languages,
2365 # while "bad" languages go in missing_languages. Leave no duplicates.
2366 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2367 case $potential_languages in
2369 case $stage1_languages in
2371 *) stage1_languages="$stage1_languages$i," ;;
2374 case $missing_languages in
2376 *) missing_languages="$missing_languages$i," ;;
2381 # Remove leading/trailing commas that were added for simplicity
2382 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2383 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2384 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2385 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2387 if test "x$missing_languages" != x; then
2389 The following requested languages could not be built: ${missing_languages}
2390 Supported languages are: ${potential_languages}])
2392 if test "x$new_enable_languages" != "x$enable_languages"; then
2393 echo The following languages will be built: ${new_enable_languages}
2394 enable_languages="$new_enable_languages"
2397 AC_SUBST(stage1_languages)
2398 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2401 # Handle --disable-<component> generically.
2402 for dir in $configdirs $build_configdirs $target_configdirs ; do
2403 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2404 varname=`echo $dirname | sed -e s/+/_/g`
2405 if eval test x\${enable_${varname}} "=" xno ; then
2406 noconfigdirs="$noconfigdirs $dir"
2410 # Check for Boehm's garbage collector
2411 AC_ARG_ENABLE(objc-gc,
2412 [AS_HELP_STRING([--enable-objc-gc],
2413 [enable use of Boehm's garbage collector with the
2414 GNU Objective-C runtime])])
2415 AC_ARG_WITH([target-bdw-gc],
2416 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2417 [specify prefix directory for installed bdw-gc package.
2418 Equivalent to --with-target-bdw-gc-include=PATH/include
2419 plus --with-target-bdw-gc-lib=PATH/lib])])
2420 AC_ARG_WITH([target-bdw-gc-include],
2421 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2422 [specify directories for installed bdw-gc include files])])
2423 AC_ARG_WITH([target-bdw-gc-lib],
2424 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2425 [specify directories for installed bdw-gc library])])
2427 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2428 AC_MSG_CHECKING([for bdw garbage collector])
2429 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2430 dnl no bdw-gw options, assume default locations
2431 AC_MSG_RESULT([using bdw-gc in default locations])
2433 dnl bdw-gw options, first error checking, complete checking in libobjc
2434 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2435 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2436 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2437 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2439 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2444 # Disable libitm, libsanitizer, libvtv if we're not building C++
2445 case ,${enable_languages}, in
2447 # Disable libitm, libsanitizer if we're not building libstdc++
2448 case "${noconfigdirs}" in
2449 *target-libstdc++-v3*)
2450 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2456 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer target-libvtv"
2460 # If gcc/ is not in the source tree then we'll not be building a
2461 # target compiler, assume in that case we don't want to build any
2462 # target libraries or tools.
2464 # This was added primarily for the benefit for binutils-gdb who reuse
2465 # this configure script, but don't always have target tools available.
2466 if test ! -d ${srcdir}/gcc; then
2467 skipdirs="${skipdirs} ${target_configdirs}"
2470 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2471 # $build_configdirs and $target_configdirs.
2472 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2475 for dir in . $skipdirs $noconfigdirs ; do
2476 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2477 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2478 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2479 if test -r $srcdir/$dirname/configure ; then
2480 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2483 notsupp="$notsupp $dir"
2487 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2488 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2489 if test -r $srcdir/$dirname/configure ; then
2490 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2493 notsupp="$notsupp $dir"
2497 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2498 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2499 if test -r $srcdir/$dirname/configure ; then
2500 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2503 notsupp="$notsupp $dir"
2509 # Quietly strip out all directories which aren't configurable in this tree.
2510 # This relies on all configurable subdirectories being autoconfiscated, which
2512 build_configdirs_all="$build_configdirs"
2514 for i in ${build_configdirs_all} ; do
2515 j=`echo $i | sed -e s/build-//g`
2516 if test -f ${srcdir}/$j/configure ; then
2517 build_configdirs="${build_configdirs} $i"
2521 configdirs_all="$configdirs"
2523 for i in ${configdirs_all} ; do
2524 if test -f ${srcdir}/$i/configure ; then
2525 configdirs="${configdirs} $i"
2529 target_configdirs_all="$target_configdirs"
2531 for i in ${target_configdirs_all} ; do
2532 j=`echo $i | sed -e s/target-//g`
2533 if test -f ${srcdir}/$j/configure ; then
2534 target_configdirs="${target_configdirs} $i"
2538 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2539 # so we have to add it after the preceding checks.
2540 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2542 case " $configdirs " in
2544 # If we can build libiberty, we can also build libiberty-linker-plugin.
2545 configdirs="$configdirs libiberty-linker-plugin"
2546 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2547 --with-libiberty=../libiberty-linker-plugin";;
2549 AC_MSG_ERROR([libiberty missing]);;
2553 # Sometimes we have special requirements for the host libiberty.
2554 extra_host_libiberty_configure_flags=
2555 case " $configdirs " in
2556 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
2557 # When these are to be built as shared libraries, the same applies to
2559 extra_host_libiberty_configure_flags=--enable-shared
2562 AC_SUBST(extra_host_libiberty_configure_flags)
2564 # Sometimes we have special requirements for the host zlib.
2565 extra_host_zlib_configure_flags=
2566 case " $configdirs " in
2568 # When bfd is to be built as a shared library, the same applies to
2570 if test "$enable_shared" = "yes"; then
2571 extra_host_zlib_configure_flags=--enable-host-shared
2575 AC_SUBST(extra_host_zlib_configure_flags)
2577 # Produce a warning message for the subdirs we can't configure.
2578 # This isn't especially interesting in the Cygnus tree, but in the individual
2579 # FSF releases, it's important to let people know when their machine isn't
2580 # supported by the one or two programs in a package.
2582 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2583 # If $appdirs is non-empty, at least one of those directories must still
2584 # be configured, or we error out. (E.g., if the gas release supports a
2585 # specified target in some subdirs but not the gas subdir, we shouldn't
2586 # pretend that all is well.)
2587 if test -n "$appdirs" ; then
2588 for dir in $appdirs ; do
2589 if test -r $dir/Makefile.in ; then
2590 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2594 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2600 if test -n "$appdirs" ; then
2601 echo "*** This configuration is not supported by this package." 1>&2
2605 # Okay, some application will build, or we don't care to check. Still
2606 # notify of subdirs not getting built.
2607 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2608 echo " ${notsupp}" 1>&2
2609 echo " (Any other directories should still work fine.)" 1>&2
2617 # To find our prefix, in gcc_cv_tool_prefix.
2622 AC_ARG_WITH([build-sysroot],
2623 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2624 [use sysroot as the system root during the build])],
2625 [if test x"$withval" != x ; then
2626 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2628 [SYSROOT_CFLAGS_FOR_TARGET=])
2629 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2631 AC_ARG_WITH([debug-prefix-map],
2632 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2633 [map A to B, C to D ... in debug information])],
2634 [if test x"$withval" != x; then
2635 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2636 for debug_map in $withval; do
2637 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2640 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2641 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2643 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2644 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2645 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2646 # We want to ensure that TARGET libraries (which we know are built with
2647 # gcc) are built with "-O2 -g", so include those options when setting
2648 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2649 if test "x$CFLAGS_FOR_TARGET" = x; then
2650 if test "x${is_cross_compiler}" = xyes; then
2651 CFLAGS_FOR_TARGET="-g -O2"
2653 CFLAGS_FOR_TARGET=$CFLAGS
2656 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2659 *" -g "* | *" -g3 "*) ;;
2660 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2664 AC_SUBST(CFLAGS_FOR_TARGET)
2666 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2667 if test "x${is_cross_compiler}" = xyes; then
2668 CXXFLAGS_FOR_TARGET="-g -O2"
2670 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2671 case " $CXXFLAGS " in
2673 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2675 case " $CXXFLAGS " in
2676 *" -g "* | *" -g3 "*) ;;
2677 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2681 AC_SUBST(CXXFLAGS_FOR_TARGET)
2683 AC_SUBST(LDFLAGS_FOR_TARGET)
2685 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2686 # the named directory are copied to $(tooldir)/sys-include.
2687 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2688 if test x${is_cross_compiler} = xno ; then
2689 echo 1>&2 '***' --with-headers is only supported when cross compiling
2692 if test x"${with_headers}" != xyes ; then
2693 x=${gcc_cv_tool_prefix}
2694 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2698 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2699 # the name directories are copied to $(tooldir)/lib. Multiple directories
2701 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2702 if test x${is_cross_compiler} = xno ; then
2703 echo 1>&2 '***' --with-libs is only supported when cross compiling
2706 if test x"${with_libs}" != xyes ; then
2707 # Copy the libraries in reverse order, so that files in the first named
2708 # library override files in subsequent libraries.
2709 x=${gcc_cv_tool_prefix}
2710 for l in ${with_libs}; do
2711 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2716 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2718 # This is done by determining whether or not the appropriate directory
2719 # is available, and by checking whether or not specific configurations
2720 # have requested that this magic not happen.
2722 # The command line options always override the explicit settings in
2723 # configure.ac, and the settings in configure.ac override this magic.
2725 # If the default for a toolchain is to use GNU as and ld, and you don't
2726 # want to do that, then you should use the --without-gnu-as and
2727 # --without-gnu-ld options for the configure script. Similarly, if
2728 # the default is to use the included zlib and you don't want to do that,
2729 # you should use the --with-system-zlib option for the configure script.
2731 if test x${use_gnu_as} = x &&
2732 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2734 extra_host_args="$extra_host_args --with-gnu-as"
2737 if test x${use_gnu_ld} = x &&
2738 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2740 extra_host_args="$extra_host_args --with-gnu-ld"
2743 if test x${use_included_zlib} = x &&
2744 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2747 with_system_zlib=yes
2748 extra_host_args="$extra_host_args --with-system-zlib"
2751 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2752 # can detect this case.
2754 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2756 extra_host_args="$extra_host_args --with-newlib"
2759 # Handle ${copy_dirs}
2760 set fnord ${copy_dirs}
2762 while test $# != 0 ; do
2763 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2766 echo Copying $1 to $2
2768 # Use the install script to create the directory and all required
2769 # parent directories.
2770 if test -d $2 ; then
2774 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2777 # Copy the directory, assuming we have tar.
2778 # FIXME: Should we use B in the second tar? Not all systems support it.
2779 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2781 # It is the responsibility of the user to correctly adjust all
2782 # symlinks. If somebody can figure out how to handle them correctly
2783 # here, feel free to add the code.
2790 # Determine a target-dependent exec_prefix that the installed
2791 # gcc will search in. Keep this list sorted by triplet, with
2792 # the *-*-osname triplets last.
2795 i[[34567]]86-pc-msdosdjgpp*)
2796 md_exec_prefix=/dev/env/DJDIR/bin
2801 md_exec_prefix=/usr/ccs/bin
2805 extra_arflags_for_target=
2806 extra_nmflags_for_target=
2807 extra_ranlibflags_for_target=
2808 target_makefile_frag=/dev/null
2811 target_makefile_frag="config/mt-spu"
2813 loongarch*-*linux* | loongarch*-*gnu*)
2814 target_makefile_frag="config/mt-loongarch-gnu"
2817 target_makefile_frag="config/mt-loongarch-elf"
2819 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2820 target_makefile_frag="config/mt-sde"
2822 mipsisa*-*-elfoabi*)
2823 target_makefile_frag="config/mt-mips-elfoabi"
2825 mips*-*-*linux* | mips*-*-gnu*)
2826 target_makefile_frag="config/mt-mips-gnu"
2829 target_makefile_frag="config/mt-nios2-elf"
2832 target_makefile_frag="config/mt-android"
2834 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2835 target_makefile_frag="config/mt-gnu"
2837 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2838 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2839 # commands to handle both 32-bit and 64-bit objects. These flags are
2840 # harmless if we're using GNU nm or ar.
2841 extra_arflags_for_target=" -X32_64"
2842 extra_nmflags_for_target=" -B -X32_64"
2846 alphaieee_frag=/dev/null
2849 # This just makes sure to use the -mieee option to build target libs.
2850 # This should probably be set individually by each library.
2851 alphaieee_frag="config/mt-alphaieee"
2855 # If --enable-target-optspace always use -Os instead of -O2 to build
2856 # the target libraries, similarly if it is not specified, use -Os
2857 # on selected platforms.
2858 ospace_frag=/dev/null
2859 case "${enable_target_optspace}:${target}" in
2861 ospace_frag="config/mt-ospace"
2864 ospace_frag="config/mt-d30v"
2866 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2867 ospace_frag="config/mt-ospace"
2872 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2876 # Some systems (e.g., one of the i386-aix systems the gas testers are
2877 # using) don't handle "\$" correctly, so don't use it here.
2878 tooldir='${exec_prefix}'/${target_noncanonical}
2879 build_tooldir=${tooldir}
2881 # Create a .gdbinit file which runs the one in srcdir
2882 # and tells GDB to look there for source files.
2884 if test -r ${srcdir}/.gdbinit ; then
2887 *) cat > ./.gdbinit <<EOF
2891 source ${srcdir}/.gdbinit
2897 # Make sure that the compiler is able to generate an executable. If it
2898 # can't, we are probably in trouble. We don't care whether we can run the
2899 # executable--we might be using a cross compiler--we only care whether it
2900 # can be created. At this point the main configure script has set CC.
2902 echo "int main () { return 0; }" > conftest.c
2903 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2904 if test $? = 0 ; then
2905 if test -s conftest || test -s conftest.exe ; then
2911 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2912 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2919 # Decide which environment variable is used to find dynamic libraries.
2921 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2922 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2923 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2924 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2927 # On systems where the dynamic library environment variable is PATH,
2928 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2929 # built executables to PATH.
2930 if test "$RPATH_ENVVAR" = PATH; then
2931 GCC_SHLIB_SUBDIR=/shlib
2936 # Adjust the toplevel makefile according to whether bootstrap was selected.
2937 case $enable_bootstrap in
2939 bootstrap_suffix=bootstrap
2940 BUILD_CONFIG=bootstrap-debug
2943 bootstrap_suffix=no-bootstrap
2948 AC_MSG_CHECKING(for default BUILD_CONFIG)
2950 AC_ARG_WITH([build-config],
2951 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2952 [use config/NAME.mk build configuration])],
2953 [case $with_build_config in
2954 yes) with_build_config= ;;
2955 no) with_build_config= BUILD_CONFIG= ;;
2958 if test "x${with_build_config}" != x; then
2959 BUILD_CONFIG=$with_build_config
2961 case $BUILD_CONFIG in
2963 if echo "int f (void) { return 0; }" > conftest.c &&
2964 ${CC} -c conftest.c &&
2965 mv conftest.o conftest.o.g0 &&
2966 ${CC} -c -g conftest.c &&
2967 mv conftest.o conftest.o.g &&
2968 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2973 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2977 AC_MSG_RESULT($BUILD_CONFIG)
2978 AC_SUBST(BUILD_CONFIG)
2980 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2981 AC_MSG_CHECKING([for --enable-vtable-verify])
2982 AC_ARG_ENABLE(vtable-verify,
2983 [AS_HELP_STRING([--enable-vtable-verify],
2984 [Enable vtable verification feature])],
2985 [case "$enableval" in
2986 yes) enable_vtable_verify=yes ;;
2987 no) enable_vtable_verify=no ;;
2988 *) enable_vtable_verify=no;;
2990 [enable_vtable_verify=no])
2991 AC_MSG_RESULT($enable_vtable_verify)
2993 # Record target_configdirs and the configure arguments for target and
2994 # build configuration in Makefile.
2995 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2996 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2997 bootstrap_fixincludes=no
2999 # If we are building libgomp, bootstrap it.
3000 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
3001 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
3004 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
3005 # or bootstrap-ubsan, bootstrap it.
3006 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
3007 case "$BUILD_CONFIG" in
3008 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
3009 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
3010 bootstrap_fixincludes=yes
3015 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
3016 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
3017 test "$enable_vtable_verify" != no; then
3018 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
3021 # If we are building libatomic and the list of enabled languages includes the
3022 # D frontend, bootstrap it.
3023 if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
3024 case ,${enable_languages}, in
3026 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
3031 # Determine whether gdb needs tk/tcl or not.
3032 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
3033 # and in that case we want gdb to be built without tk. Ugh!
3034 # In fact I believe gdb is the *only* package directly dependent on tk,
3035 # so we should be able to put the 'maybe's in unconditionally and
3036 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
3037 # 100% sure that that's safe though.
3039 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
3040 case "$enable_gdbtk" in
3044 GDB_TK="${gdb_tk}" ;;
3046 # Only add the dependency on gdbtk when GDBtk is part of the gdb
3047 # distro. Eventually someone will fix this and move Insight, nee
3048 # gdbtk to a separate directory.
3049 if test -d ${srcdir}/gdb/gdbtk ; then
3056 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
3057 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
3059 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
3060 # else does, only include them if one of these is built. The Makefile
3061 # provides the ordering, so it's enough here to add to the list.
3062 case " ${configdirs} " in
3064 configdirs="${configdirs} gnulib gdbsupport"
3067 configdirs="${configdirs} gnulib gdbsupport"
3070 configdirs="${configdirs} gnulib"
3074 # Strip out unwanted targets.
3076 # While at that, we remove Makefiles if we were started for recursive
3077 # configuration, so that the top-level Makefile reconfigures them,
3078 # like we used to do when configure itself was recursive.
3080 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
3081 # but now we're fixing up the Makefile ourselves with the additional
3082 # commands passed to AC_CONFIG_FILES. Use separate variables
3083 # extrasub-{build,host,target} not because there is any reason to split
3084 # the substitutions up that way, but only to remain below the limit of
3085 # 99 commands in a script, for HP-UX sed.
3087 # Do not nest @if/@endif or @unless/@endunless pairs, because
3088 # configure will not warn you at all.
3090 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
3091 yes:yes:*\ gold\ *:*,c++,*) ;;
3092 yes:yes:*\ gold\ *:*)
3093 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
3098 for module in ${build_configdirs} ; do
3099 if test -z "${no_recursion}" \
3100 && test -f ${build_subdir}/${module}/Makefile; then
3101 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
3102 rm -f ${build_subdir}/${module}/Makefile
3104 extrasub_build="$extrasub_build
3105 /^@if build-$module\$/d
3106 /^@endif build-$module\$/d
3107 /^@unless build-$module\$/,/^@endunless build-$module\$/d
3108 /^@if build-$module-$bootstrap_suffix\$/d
3109 /^@endif build-$module-$bootstrap_suffix\$/d
3110 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
3113 for module in ${configdirs} ; do
3114 if test -z "${no_recursion}"; then
3115 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
3116 if test -f ${file}; then
3117 echo 1>&2 "*** removing ${file} to force reconfigure"
3122 case ${module},${bootstrap_fixincludes} in
3123 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
3124 *) host_bootstrap_suffix=$bootstrap_suffix ;;
3126 extrasub_host="$extrasub_host
3128 /^@endif $module\$/d
3129 /^@unless $module\$/,/^@endunless $module\$/d
3130 /^@if $module-$host_bootstrap_suffix\$/d
3131 /^@endif $module-$host_bootstrap_suffix\$/d
3132 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
3135 for module in ${target_configdirs} ; do
3136 if test -z "${no_recursion}" \
3137 && test -f ${target_subdir}/${module}/Makefile; then
3138 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
3139 rm -f ${target_subdir}/${module}/Makefile
3142 # We only bootstrap target libraries listed in bootstrap_target_libs.
3143 case $bootstrap_target_libs in
3144 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
3145 *) target_bootstrap_suffix=no-bootstrap ;;
3148 extrasub_target="$extrasub_target
3149 /^@if target-$module\$/d
3150 /^@endif target-$module\$/d
3151 /^@unless target-$module\$/,/^@endunless target-$module\$/d
3152 /^@if target-$module-$target_bootstrap_suffix\$/d
3153 /^@endif target-$module-$target_bootstrap_suffix\$/d
3154 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
3157 # Do the final fixup along with target modules.
3158 extrasub_target="$extrasub_target
3163 if test "$enable_pgo_build" != "no"; then
3164 extrasub_build="$extrasub_build
3166 /^@endif pgo-build\$/d"
3169 # Create the serialization dependencies. This uses a temporary file.
3171 AC_ARG_ENABLE([serial-configure],
3172 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3173 [force sequential configuration of
3174 sub-packages for the host, target or build
3175 machine, or all sub-packages])])
3177 case ${enable_serial_configure} in
3179 enable_serial_build_configure=yes
3180 enable_serial_host_configure=yes
3181 enable_serial_target_configure=yes
3185 # These force 'configure's to be done one at a time, to avoid problems
3186 # with contention over a shared config.cache.
3188 if test "x${enable_serial_build_configure}" = xyes || test "x${enable_serial_host_configure}" = xyes || test "x${enable_serial_target_configure}" = xyes; then
3189 echo '# serdep.tmp' > serdep.tmp
3192 test "x${enable_serial_build_configure}" = xyes &&
3193 for item in ${build_configdirs} ; do
3196 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
3201 test "x${enable_serial_host_configure}" = xyes &&
3202 for item in ${configdirs} ; do
3205 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
3210 test "x${enable_serial_target_configure}" = xyes &&
3211 for item in ${target_configdirs} ; do
3214 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
3218 serialization_dependencies=serdep.tmp
3219 AC_SUBST_FILE(serialization_dependencies)
3221 # Base args. Strip norecursion, cache-file, srcdir, host, build,
3222 # target, nonopt, and variable assignments. These are the ones we
3223 # might not want to pass down to subconfigures. The exception being
3224 # --cache-file=/dev/null, which is used to turn off the use of cache
3225 # files altogether, and which should be passed on to subconfigures.
3226 # Also strip program-prefix, program-suffix, and program-transform-name,
3227 # so that we can pass down a consistent program-transform-name.
3232 eval "set -- $ac_configure_args"
3235 if test X"$skip_next" = X"yes"; then
3239 if test X"$keep_next" = X"yes"; then
3242 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3244 baseargs="$baseargs '$ac_arg'"
3245 tbaseargs="$tbaseargs '$ac_arg'"
3250 # Handle separated arguments. Based on the logic generated by
3253 *=* | --config-cache | -C | -disable-* | --disable-* \
3254 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3255 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3256 | -with-* | --with-* | -without-* | --without-* | --x)
3270 --with-* | --without-*)
3271 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3275 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3278 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3287 mpc | mpfr | gmp | isl)
3288 # If we're processing --with-$lib, --with-$lib-include or
3289 # --with-$lib-lib, for one of the libs above, and target is
3290 # different from host, don't pass the current argument to any
3291 # target library's configure.
3292 if test x$is_cross_compiler = xyes; then
3301 --cache-file=/dev/null | \
3302 -cache-file=/dev/null )
3303 # Handled here to avoid the test to skip args below.
3304 baseargs="$baseargs '$ac_arg'"
3305 tbaseargs="$tbaseargs '$ac_arg'"
3306 # Assert: $separate_arg should always be no.
3307 keep_next=$separate_arg
3323 -program-prefix* | \
3324 -program-suffix* | \
3325 -program-transform-name* )
3326 skip_next=$separate_arg
3330 # An option. Add it.
3333 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3335 baseargs="$baseargs '$ac_arg'"
3336 if test X"$skip_targ" = Xno; then
3337 tbaseargs="$tbaseargs '$ac_arg'"
3339 keep_next=$separate_arg
3342 # Either a variable assignment, or a nonopt (triplet). Don't
3343 # pass it down; let the Makefile handle this.
3348 # Remove the initial space we just introduced and, as these will be
3349 # expanded by make, quote '$'.
3350 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3352 # Add in --program-transform-name, after --program-prefix and
3353 # --program-suffix have been applied to it. Autoconf has already
3354 # doubled dollar signs and backslashes in program_transform_name; we want
3355 # the backslashes un-doubled, and then the entire thing wrapped in single
3356 # quotes, because this will be expanded first by make and then by the shell.
3357 # Also, because we want to override the logic in subdir configure scripts to
3358 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3359 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3360 ${program_transform_name}
3362 gcc_transform_name=`cat conftestsed.out`
3363 rm -f conftestsed.out
3364 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3365 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3366 if test "$silent" = yes; then
3367 baseargs="$baseargs --silent"
3368 tbaseargs="$tbaseargs --silent"
3371 baseargs="$baseargs --disable-option-checking"
3372 tbaseargs="$tbaseargs --disable-option-checking"
3374 if test "$enable_year2038" = no; then
3375 baseargs="$baseargs --disable-year2038"
3376 tbaseargs="$tbaseargs --disable-year2038"
3379 # Record and document user additions to sub configure arguments.
3380 AC_ARG_VAR([build_configargs],
3381 [additional configure arguments for build directories])
3382 AC_ARG_VAR([host_configargs],
3383 [additional configure arguments for host directories])
3384 AC_ARG_VAR([target_configargs],
3385 [additional configure arguments for target directories])
3387 # For the build-side libraries, we just need to pretend we're native,
3388 # and not use the same cache file. Multilibs are neither needed nor
3389 # desired. We can't even use the same cache file for all build-side
3390 # libraries, as they're compiled differently; some with C, some with
3391 # C++ or with different feature-enabling options.
3392 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3394 # For host modules, accept cache file option, or specification as blank.
3395 case "${cache_file}" in
3397 cache_file_option="" ;;
3398 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3399 cache_file_option="--cache-file=${cache_file}" ;;
3401 cache_file_option="--cache-file=../${cache_file}" ;;
3404 # Host dirs don't like to share a cache file either, horribly enough.
3405 # This seems to be due to autoconf 2.5x stupidity.
3406 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3408 target_configargs="$target_configargs ${tbaseargs}"
3410 # Passing a --with-cross-host argument lets the target libraries know
3411 # whether they are being built with a cross-compiler or being built
3412 # native. However, it would be better to use other mechanisms to make the
3413 # sorts of decisions they want to make on this basis. Please consider
3414 # this option to be deprecated. FIXME.
3415 if test x${is_cross_compiler} = xyes ; then
3416 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3419 # Special user-friendly check for native x86_64-linux build, if
3420 # multilib is not explicitly enabled.
3421 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3422 x86_64-*linux*:yes:$build:$build:)
3423 # Make sure we have a development environment that handles 32-bit
3425 echo "int main () { return 0; }" > conftest.c
3426 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3427 if test $? = 0 ; then
3428 if test -s conftest || test -s conftest.exe ; then
3433 if test x${dev64} != xyes ; then
3434 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.])
3439 # Default to --enable-multilib.
3440 if test x${enable_multilib} = x ; then
3441 target_configargs="--enable-multilib ${target_configargs}"
3444 # Pass --with-newlib if appropriate. Note that target_configdirs has
3445 # changed from the earlier setting of with_newlib.
3446 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3447 target_configargs="--with-newlib ${target_configargs}"
3450 # Different target subdirs use different values of certain variables
3451 # (notably CXX). Worse, multilibs use *lots* of different values.
3452 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3453 # it doesn't automatically accept command-line overrides of them.
3454 # This means it's not safe for target subdirs to share a cache file,
3455 # which is disgusting, but there you have it. Hopefully this can be
3456 # fixed in future. It's still worthwhile to use a cache file for each
3457 # directory. I think.
3459 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3460 # We need to pass --target, as newer autoconf's requires consistency
3461 # for target_alias and gcc doesn't manage it consistently.
3462 target_configargs="--cache-file=./config.cache ${target_configargs}"
3465 case " $target_configdirs " in
3467 case " $target_configargs " in
3468 *" --with-newlib "*)
3471 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3475 # If we're not building GCC, don't discard standard headers.
3476 if test -d ${srcdir}/gcc; then
3477 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3479 if test "${build}" != "${host}"; then
3480 # On Canadian crosses, CC_FOR_TARGET will have already been set
3481 # by `configure', so we won't have an opportunity to add -Bgcc/
3482 # to it. This is right: we don't want to search that directory
3483 # for binaries, but we want the header files in there, so add
3485 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3487 # Someone might think of using the pre-installed headers on
3488 # Canadian crosses, in case the installed compiler is not fully
3489 # compatible with the compiler being built. In this case, it
3490 # would be better to flag an error than risking having
3491 # incompatible object files being constructed. We can't
3492 # guarantee that an error will be flagged, but let's hope the
3493 # compiler will do it, when presented with incompatible header
3498 case "${target}-${is_cross_compiler}" in
3499 i[[3456789]]86-*-linux*-no)
3500 # Here host == target, so we don't need to build gcc,
3501 # so we don't want to discard standard headers.
3502 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3505 # If we're building newlib, use its generic headers last, but search
3506 # for any libc-related directories first (so make it the last -B
3508 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3510 # If we're building libgloss, find the startup file, simulator library
3511 # and linker script.
3512 case " $target_configdirs " in
3514 # Look for startup file, simulator library and maybe linker script.
3515 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3516 # Look for libnosys.a in case the target needs it.
3517 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3518 # Most targets have the linker script in the source directory.
3519 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3530 x86_64-*mingw* | *-w64-mingw*)
3531 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3532 # however, use a symlink named 'mingw' in ${prefix} .
3533 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3536 # MinGW can't be handled as Cygwin above since it does not use newlib.
3537 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3541 # Allow the user to override the flags for
3542 # our build compiler if desired.
3543 if test x"${build}" = x"${host}" ; then
3544 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3545 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
3546 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3547 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3550 # On Canadian crosses, we'll be searching the right directories for
3551 # the previously-installed cross compiler, so don't bother to add
3552 # flags for directories within the install tree of the compiler
3553 # being built; programs in there won't even run.
3554 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3555 # Search for pre-installed headers if nothing else fits.
3556 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3559 if test "x${use_gnu_ld}" = x &&
3560 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3561 # Arrange for us to find uninstalled linker scripts.
3562 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3565 # Search for other target-specific linker scripts and such.
3568 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3570 # The VxWorks support for shared libraries is getting in
3571 # incrementally. Make sure it doesn't get activated implicitly:
3573 if test "${enable_shared-unset}" = unset ; then
3575 # So the build of libraries knows ...
3576 target_configargs="${target_configargs} --disable-shared"
3578 host_configargs="${host_configargs} --disable-shared"
3583 # Makefile fragments.
3584 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3586 eval fragval=\$$frag
3587 if test $fragval != /dev/null; then
3588 eval $frag=${srcdir}/$fragval
3591 AC_SUBST_FILE(host_makefile_frag)
3592 AC_SUBST_FILE(target_makefile_frag)
3593 AC_SUBST_FILE(alphaieee_frag)
3594 AC_SUBST_FILE(ospace_frag)
3596 # Miscellanea: directories, flags, etc.
3597 AC_SUBST(RPATH_ENVVAR)
3598 AC_SUBST(GCC_SHLIB_SUBDIR)
3600 AC_SUBST(build_tooldir)
3601 AC_SUBST(CONFIGURE_GDB_TK)
3603 AC_SUBST(INSTALL_GDB_TK)
3605 # Build module lists & subconfigure args.
3606 AC_SUBST(build_configargs)
3607 AC_SUBST(build_configdirs)
3609 # Host module lists & subconfigure args.
3610 AC_SUBST(host_configargs)
3611 AC_SUBST(configdirs)
3612 AC_SUBST(target_configdirs)
3614 # Target module lists & subconfigure args.
3615 AC_SUBST(target_configargs)
3619 AC_SUBST(AR_FOR_BUILD)
3620 AC_SUBST(AS_FOR_BUILD)
3621 AC_SUBST(CC_FOR_BUILD)
3622 AC_SUBST(CFLAGS_FOR_BUILD)
3623 AC_SUBST(CPP_FOR_BUILD)
3624 AC_SUBST(CPPFLAGS_FOR_BUILD)
3625 AC_SUBST(CXXFLAGS_FOR_BUILD)
3626 AC_SUBST(CXX_FOR_BUILD)
3627 AC_SUBST(DLLTOOL_FOR_BUILD)
3628 AC_SUBST(DSYMUTIL_FOR_BUILD)
3629 AC_SUBST(GFORTRAN_FOR_BUILD)
3630 AC_SUBST(GOC_FOR_BUILD)
3631 AC_SUBST(GDC_FOR_BUILD)
3632 AC_SUBST(LDFLAGS_FOR_BUILD)
3633 AC_SUBST(LD_FOR_BUILD)
3634 AC_SUBST(NM_FOR_BUILD)
3635 AC_SUBST(RANLIB_FOR_BUILD)
3636 AC_SUBST(WINDMC_FOR_BUILD)
3637 AC_SUBST(WINDRES_FOR_BUILD)
3639 # Generate default definitions for YACC, M4, LEX and other programs that run
3640 # on the build machine. These are used if the Makefile can't locate these
3641 # programs in objdir.
3642 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3644 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3645 case " $build_configdirs " in
3646 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3649 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3650 case " $build_configdirs " in
3651 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3654 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3655 case " $build_configdirs " in
3656 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3659 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3660 case " $build_configdirs " in
3661 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3662 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3665 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3666 case " $build_configdirs " in
3667 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3670 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3671 case " $build_configdirs " in
3672 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3675 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3676 # higher, else we use the "missing" dummy.
3677 if ${MAKEINFO} --version \
3678 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3681 MAKEINFO="$MISSING makeinfo"
3687 # FIXME: expect and dejagnu may become build tools?
3689 AC_CHECK_PROGS(EXPECT, expect, expect)
3690 case " $configdirs " in
3692 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3696 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3697 case " $configdirs " in
3699 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3705 NCN_STRICT_CHECK_TOOLS(AR, ar)
3706 NCN_STRICT_CHECK_TOOLS(AS, as)
3707 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3708 NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
3709 NCN_STRICT_CHECK_TOOLS(LD, ld)
3710 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3711 NCN_STRICT_CHECK_TOOLS(NM, nm)
3712 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3713 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3714 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3715 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3716 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3717 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3718 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3719 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3726 GDCFLAGS=${GDCFLAGS-${CFLAGS}}
3727 AC_SUBST(PKG_CONFIG_PATH)
3729 GCC_PLUGIN_OPTION(PLUGIN_OPTION)
3731 RANLIB_PLUGIN_OPTION=
3732 if test -n "$PLUGIN_OPTION"; then
3733 if $AR --help 2>&1 | grep -q "\--plugin"; then
3734 AR_PLUGIN_OPTION="$PLUGIN_OPTION"
3736 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
3737 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
3740 AC_SUBST(AR_PLUGIN_OPTION)
3741 AC_SUBST(RANLIB_PLUGIN_OPTION)
3744 AC_ARG_WITH([build-time-tools],
3745 [AS_HELP_STRING([--with-build-time-tools=PATH],
3746 [use given path to find target tools during the build])],
3747 [case x"$withval" in
3750 with_build_time_tools=
3751 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3754 [with_build_time_tools=])
3756 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3757 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3758 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3759 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3760 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3761 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3762 NCN_STRICT_CHECK_TARGET_TOOLS(GM2_FOR_TARGET, gm2)
3764 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3765 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3766 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3767 ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
3768 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3769 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3770 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3771 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3772 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3773 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3774 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3775 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3776 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3777 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3778 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3780 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3782 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3783 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3784 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3785 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3786 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3787 [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],
3789 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3790 [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],
3792 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3793 GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
3794 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3795 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3796 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3797 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3798 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3799 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3800 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3801 GCC_TARGET_TOOL(gm2, GM2_FOR_TARGET, GM2,
3802 [gcc/gm2 -B$$r/$(HOST_SUBDIR)/gcc/], m2)
3803 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3804 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3805 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3806 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3807 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3808 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3809 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3810 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3811 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3812 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3813 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3815 AC_SUBST(FLAGS_FOR_TARGET)
3816 AC_SUBST(RAW_CXX_FOR_TARGET)
3818 # Certain tools may need extra flags.
3819 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3820 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3821 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3823 # When building target libraries, except in a Canadian cross, we use
3824 # the same toolchain as the compiler we just built.
3825 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3826 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3827 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3828 if test $host = $build; then
3829 case " $configdirs " in
3831 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3832 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3833 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3838 AC_SUBST(COMPILER_AS_FOR_TARGET)
3839 AC_SUBST(COMPILER_LD_FOR_TARGET)
3840 AC_SUBST(COMPILER_NM_FOR_TARGET)
3842 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3843 AC_ARG_ENABLE(maintainer-mode,
3844 [AS_HELP_STRING([--enable-maintainer-mode],
3845 [enable make rules and dependencies not useful
3846 (and sometimes confusing) to the casual installer])],
3847 USE_MAINTAINER_MODE=$enableval,
3848 USE_MAINTAINER_MODE=no)
3849 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3850 AC_SUBST(MAINTAINER_MODE_TRUE)
3851 AC_SUBST(MAINTAINER_MODE_FALSE)
3852 if test "$USE_MAINTAINER_MODE" = yes; then
3853 MAINTAINER_MODE_TRUE=
3854 MAINTAINER_MODE_FALSE='#'
3856 MAINTAINER_MODE_TRUE='#'
3857 MAINTAINER_MODE_FALSE=
3859 MAINT=$MAINTAINER_MODE_TRUE
3862 # ---------------------
3863 # GCC bootstrap support
3864 # ---------------------
3866 # Stage specific cflags for build.
3871 yes) stage1_cflags="-g -Wa,-J" ;;
3872 *) stage1_cflags="-g -J" ;;
3876 AC_SUBST(stage1_cflags)
3878 # Enable --enable-checking in stage1 of the compiler.
3879 AC_ARG_ENABLE(stage1-checking,
3880 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3881 [choose additional checking for stage1 of the compiler])],
3882 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3883 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3884 # For --disable-checking or implicit --enable-checking=release, avoid
3885 # setting --enable-checking=gc in the default stage1 checking for LTO
3886 # bootstraps. See PR62077.
3887 case $BUILD_CONFIG in
3889 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3891 stage1_checking=--enable-checking=yes,types;;
3893 if test "x$enable_checking" = x && \
3894 test -d ${srcdir}/gcc && \
3895 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3896 stage1_checking=--enable-checking=yes,types,extra
3899 stage1_checking=--enable-checking=$enable_checking,types
3901 AC_SUBST(stage1_checking)
3903 # Enable -Werror in bootstrap stage2 and later.
3904 AC_ARG_ENABLE(werror,
3905 [AS_HELP_STRING([--enable-werror],
3906 [enable -Werror in bootstrap stage2 and later])],
3908 case ${enable_werror} in
3909 yes) stage2_werror_flag="--enable-werror-always" ;;
3910 *) stage2_werror_flag="" ;;
3914 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3915 case $BUILD_CONFIG in
3917 stage2_werror_flag="--enable-werror-always" ;;
3919 stage2_werror_flag="--enable-werror-always" ;;
3924 AC_SUBST(stage2_werror_flag)
3926 # Specify what files to not compare during bootstrap.
3928 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3929 compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/M2Version*"
3930 compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/SYSTEM*"
3931 compare_exclusions="$compare_exclusions | gcc/m2/gm2version*"
3933 hppa*64*-*-hpux*) ;;
3934 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
3936 AC_SUBST(compare_exclusions)
3938 AC_CONFIG_FILES([Makefile],
3939 [sed "$extrasub_build" Makefile |
3940 sed "$extrasub_host" |
3941 sed "$extrasub_target" > mf$$
3942 mv -f mf$$ Makefile],
3943 [extrasub_build="$extrasub_build"
3944 extrasub_host="$extrasub_host"
3945 extrasub_target="$extrasub_target"])