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*)
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"
806 noconfigdirs="$noconfigdirs target-libffi"
808 i[[3456789]]86-w64-mingw*)
809 noconfigdirs="$noconfigdirs target-libffi"
811 i[[3456789]]86-*-mingw*)
812 noconfigdirs="$noconfigdirs target-libffi"
815 noconfigdirs="$noconfigdirs target-libffi"
818 noconfigdirs="$noconfigdirs target-libffi"
825 noconfigdirs="$noconfigdirs target-libffi"
828 noconfigdirs="$noconfigdirs target-libffi"
832 # Disable the go frontend on systems where it is known to not work. Please keep
833 # this in sync with contrib/config-list.mk.
835 *-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
836 unsupported_languages="$unsupported_languages go"
840 # Only allow gdbserver on some systems.
841 if test -d ${srcdir}/gdbserver; then
842 if test x$enable_gdbserver = x; then
843 AC_MSG_CHECKING([for gdbserver support])
844 if (srcdir=${srcdir}/gdbserver; \
845 . ${srcdir}/configure.srv; \
846 test -n "$UNSUPPORTED")
849 noconfigdirs="$noconfigdirs gdbserver"
856 # Disable libgo for some systems where it is known to not work.
857 # For testing, you can easily override this with --enable-libgo.
858 if test x$enable_libgo = x; then
862 noconfigdirs="$noconfigdirs target-libgo"
864 *-*-cygwin* | *-*-mingw*)
865 noconfigdirs="$noconfigdirs target-libgo"
868 noconfigdirs="$noconfigdirs target-libgo"
873 # Default libgloss CPU subdirectory.
874 libgloss_dir="$target_cpu"
877 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
886 cris-*-* | crisv32-*-*)
896 libgloss_dir=loongarch
898 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
918 # Disable newlib and libgloss for various target OSes.
921 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
923 i[[3456789]]86-*-linux*)
924 # This section makes it possible to build newlib natively on linux.
925 # If we are using a cross compiler then don't configure newlib.
926 if test x${is_cross_compiler} != xno ; then
927 noconfigdirs="$noconfigdirs target-newlib"
929 noconfigdirs="$noconfigdirs target-libgloss"
930 # If we are not using a cross compiler, do configure newlib.
931 # Note however, that newlib will only be configured in this situation
932 # if the --with-newlib option has been given, because otherwise
933 # 'target-newlib' will appear in skipdirs.
935 i[[3456789]]86-*-rdos*)
936 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
938 sh*-*-pe|mips*-*-pe|arm-wince-pe)
939 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
942 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
945 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
948 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
951 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
954 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
957 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
960 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
962 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
963 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
966 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
969 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
972 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
975 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
978 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
981 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
984 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
992 noconfigdirs="$noconfigdirs ld gas gdb gprof"
993 noconfigdirs="$noconfigdirs sim target-rda"
998 noconfigdirs="$noconfigdirs ld gas gdb gprof"
999 noconfigdirs="$noconfigdirs sim target-rda"
1002 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1003 noconfigdirs="$noconfigdirs sim target-rda"
1005 i[[3456789]]86-*-darwin*)
1006 noconfigdirs="$noconfigdirs ld gprof"
1007 noconfigdirs="$noconfigdirs sim target-rda"
1009 x86_64-*-darwin[[912]]*)
1010 noconfigdirs="$noconfigdirs ld gas gprof"
1011 noconfigdirs="$noconfigdirs sim target-rda"
1014 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1015 noconfigdirs="$noconfigdirs sim target-rda"
1020 if test "x$with_gmp" = x \
1021 && ! test -d ${srcdir}/gmp \
1022 && test -f /usr/local/include/gmp.h; then
1027 # Remove unsupported stuff on all kaOS configurations.
1028 noconfigdirs="$noconfigdirs target-libgloss"
1035 noconfigdirs="$noconfigdirs target-libgloss"
1038 noconfigdirs="$noconfigdirs target-libgloss"
1040 # The tpf target doesn't support gdb yet.
1042 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
1045 noconfigdirs="$noconfigdirs target-rda"
1050 # ld works, but does not support shared libraries.
1051 # gas doesn't generate exception information.
1052 noconfigdirs="$noconfigdirs gas ld"
1055 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1058 # newlib is not 64 bit ready
1059 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1062 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1064 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1065 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1068 noconfigdirs="$noconfigdirs sim"
1071 noconfigdirs="$noconfigdirs target-libgloss"
1074 noconfigdirs="$noconfigdirs ld target-libgloss"
1077 if test x${with_avrlibc} != xno; then
1078 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1081 c4x-*-* | tic4x-*-*)
1082 noconfigdirs="$noconfigdirs target-libgloss"
1085 noconfigdirs="$noconfigdirs target-libgloss gdb"
1088 noconfigdirs="$noconfigdirs target-libgloss"
1091 noconfigdirs="$noconfigdirs gdb"
1094 noconfigdirs="$noconfigdirs gdb"
1097 noconfigdirs="$noconfigdirs target-rda gprof"
1100 noconfigdirs="$noconfigdirs"
1103 noconfigdirs="$noconfigdirs target-libgloss"
1106 noconfigdirs="$noconfigdirs target-libgloss"
1109 noconfigdirs="$noconfigdirs gdb"
1117 hppa*-*-openbsd* | \
1123 noconfigdirs="$noconfigdirs ld"
1126 noconfigdirs="$noconfigdirs gdb"
1129 # No gdb support yet.
1130 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1133 # No ld support yet.
1134 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1137 # No ld support yet.
1138 noconfigdirs="$noconfigdirs libgui itcl ld"
1140 i[[3456789]]86-w64-mingw*)
1142 i[[3456789]]86-*-mingw*)
1143 target_configdirs="$target_configdirs target-winsup"
1146 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1147 noconfigdirs="$noconfigdirs target-libgloss"
1148 # always build newlib if winsup directory is present.
1149 if test -d "$srcdir/winsup/cygwin"; then
1150 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1151 elif test -d "$srcdir/newlib"; then
1152 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1155 i[[3456789]]86-*-pe)
1156 noconfigdirs="$noconfigdirs target-libgloss"
1158 i[[3456789]]86-*-sco3.2v5*)
1159 # The linker does not yet know about weak symbols in COFF,
1160 # and is not configured to handle mixed ELF and COFF.
1161 noconfigdirs="$noconfigdirs ld target-libgloss"
1163 i[[3456789]]86-*-sco*)
1164 noconfigdirs="$noconfigdirs gprof target-libgloss"
1166 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1167 noconfigdirs="$noconfigdirs target-libgloss"
1169 i[[3456789]]86-*-sysv4*)
1170 noconfigdirs="$noconfigdirs target-libgloss"
1172 i[[3456789]]86-*-beos*)
1173 noconfigdirs="$noconfigdirs gdb"
1175 i[[3456789]]86-*-rdos*)
1176 noconfigdirs="$noconfigdirs gdb"
1179 noconfigdirs="$noconfigdirs gdb"
1182 noconfigdirs="$noconfigdirs sim"
1185 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1186 noconfigdirs="$noconfigdirs $target_libraries"
1189 noconfigdirs="$noconfigdirs gdb gprof"
1192 # copied from rs6000-*-* entry
1193 noconfigdirs="$noconfigdirs gprof"
1195 powerpc*-*-winnt* | powerpc*-*-pe*)
1196 target_configdirs="$target_configdirs target-winsup"
1197 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1198 # always build newlib.
1199 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1201 # This is temporary until we can link against shared libraries
1202 powerpcle-*-solaris*)
1203 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1206 noconfigdirs="$noconfigdirs gdb"
1209 noconfigdirs="$noconfigdirs gprof"
1212 noconfigdirs="$noconfigdirs gprof"
1215 noconfigdirs="$noconfigdirs gprof"
1218 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1221 noconfigdirs="$noconfigdirs gprof"
1223 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1224 if test x$with_newlib = xyes; then
1225 noconfigdirs="$noconfigdirs gprof"
1229 noconfigdirs="$noconfigdirs gprof target-libgloss"
1232 noconfigdirs="$noconfigdirs gprof target-libgloss"
1235 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1239 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1240 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1241 noconfigdirs="$noconfigdirs ld gas gprof"
1244 noconfigdirs="$noconfigdirs gprof"
1247 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1254 noconfigdirs="$noconfigdirs target-libgloss" ;;
1258 if test x${is_cross_compiler} = xno ; then
1263 noconfigdirs="$noconfigdirs sim"
1265 tilepro*-*-* | tilegx*-*-*)
1266 noconfigdirs="$noconfigdirs sim"
1269 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1272 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1275 noconfigdirs="$noconfigdirs ld"
1277 loongarch*-*-linux*)
1280 noconfigdirs="$noconfigdirs gprof"
1284 # If we aren't building newlib, then don't build libgloss, since libgloss
1285 # depends upon some newlib header files.
1286 case "${noconfigdirs}" in
1287 *target-libgloss*) ;;
1288 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1291 # Work in distributions that contain no compiler tools, like Autoconf.
1292 host_makefile_frag=/dev/null
1293 if test -d ${srcdir}/config ; then
1295 i[[3456789]]86-*-msdosdjgpp*)
1296 host_makefile_frag="config/mh-djgpp"
1299 ACX_CHECK_CYGWIN_CAT_WORKS
1300 host_makefile_frag="config/mh-cygwin"
1303 host_makefile_frag="config/mh-mingw"
1306 host_makefile_frag="config/mh-alpha-linux"
1309 host_makefile_frag="config/mh-pa"
1312 host_makefile_frag="config/mh-pa"
1314 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
1315 host_makefile_frag="config/mh-darwin"
1318 host_makefile_frag="config/mh-ppc-aix"
1321 host_makefile_frag="config/mh-ppc-aix"
1326 if test "${build}" != "${host}" ; then
1327 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1328 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1329 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1330 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
1331 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1332 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
1333 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1334 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1335 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1336 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1337 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1338 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1339 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1340 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1341 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1343 AR_FOR_BUILD="\$(AR)"
1344 AS_FOR_BUILD="\$(AS)"
1345 CC_FOR_BUILD="\$(CC)"
1346 CXX_FOR_BUILD="\$(CXX)"
1347 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
1348 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1349 GOC_FOR_BUILD="\$(GOC)"
1350 GDC_FOR_BUILD="\$(GDC)"
1351 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1352 LD_FOR_BUILD="\$(LD)"
1353 NM_FOR_BUILD="\$(NM)"
1354 RANLIB_FOR_BUILD="\$(RANLIB)"
1355 WINDRES_FOR_BUILD="\$(WINDRES)"
1356 WINDMC_FOR_BUILD="\$(WINDMC)"
1362 # We must set the default linker to the linker used by gcc for the correct
1363 # operation of libtool. If LD is not defined and we are using gcc, try to
1364 # set the LD default to the ld used by gcc.
1365 if test -z "$LD"; then
1366 if test "$GCC" = yes; then
1369 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1371 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1373 case $gcc_prog_ld in
1374 # Accept absolute paths.
1375 [[\\/]* | [A-Za-z]:[\\/]*)]
1376 LD="$gcc_prog_ld" ;;
1381 # Check whether -static-libstdc++ -static-libgcc is supported.
1383 if test "$GCC" = yes; then
1384 saved_LDFLAGS="$LDFLAGS"
1386 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1387 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1389 AC_LINK_IFELSE([AC_LANG_SOURCE([
1390 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1391 #error -static-libstdc++ not implemented
1394 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1395 [AC_MSG_RESULT([no])])
1398 LDFLAGS="$saved_LDFLAGS"
1403 ACX_PROG_CMP_IGNORE_INITIAL
1405 AC_ARG_ENABLE([bootstrap],
1406 [AS_HELP_STRING([--enable-bootstrap],
1407 [enable bootstrapping @<:@yes if native build@:>@])],,
1408 enable_bootstrap=default)
1410 # Issue errors and warnings for invalid/strange bootstrap combinations.
1411 if test -r $srcdir/gcc/configure; then
1417 case "$have_compiler:$host:$target:$enable_bootstrap" in
1420 # Default behavior. Enable bootstrap if we have a compiler
1421 # and we are in a native configuration.
1422 yes:$build:$build:default)
1423 enable_bootstrap=yes ;;
1426 enable_bootstrap=no ;;
1428 # We have a compiler and we are in a native configuration, bootstrap is ok
1429 yes:$build:$build:yes)
1432 # Other configurations, but we have a compiler. Assume the user knows
1435 AC_MSG_WARN([trying to bootstrap a cross compiler])
1438 # No compiler: if they passed --enable-bootstrap explicitly, fail
1440 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1442 # Fail if wrong command line
1444 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1448 # When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
1449 # C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1450 # require C++11 (or higher).
1451 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1452 CXX="$CXX -std=c++11"
1453 elif test "$have_compiler" = yes; then
1454 AX_CXX_COMPILE_STDCXX(11)
1456 if test "${build}" != "${host}"; then
1457 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1461 AC_ARG_ENABLE([pgo-build],
1462 [AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1463 [enable the PGO build])],
1464 [enable_pgo_build=$enableval],
1465 [enable_pgo_build=no])
1467 # Issue errors and warnings for invalid/strange PGO build combinations.
1468 case "$have_compiler:$host:$target:$enable_pgo_build" in
1471 # Allow the PGO build only if we aren't building a compiler and
1472 # we are in a native configuration.
1473 no:$build:$build:yes | no:$build:$build:lto) ;;
1475 # Disallow the PGO bootstrap if we are building a compiler.
1476 yes:*:*:yes | yes:*:*:lto)
1477 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1480 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1484 if test "$enable_pgo_build" != "no"; then
1485 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1486 old_CFLAGS="$CFLAGS"
1487 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1488 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1489 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1490 [PGO_BUILD_GEN_CFLAGS=])
1491 CFLAGS="$old_CFLAGS"
1492 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1493 AC_MSG_RESULT([yes])
1494 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1497 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1500 if test "$enable_pgo_build" = "lto"; then
1501 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1502 old_CFLAGS="$CFLAGS"
1503 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1504 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1505 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1506 [PGO_BUILD_LTO_CFLAGS=])
1507 CFLAGS="$old_CFLAGS"
1508 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1509 AC_MSG_RESULT([yes])
1512 AC_MSG_WARN([LTO is disabled for the PGO build])
1516 AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1517 AC_SUBST(PGO_BUILD_USE_CFLAGS)
1518 AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1520 # Used for setting $lt_cv_objdir
1523 # Check for GMP, MPFR and MPC
1526 if test -d ${srcdir}/gcc ; then
1530 if test -d ${srcdir}/gdb ; then
1531 if test "x$enable_gdb" != xno; then
1536 gmplibs="-lmpfr -lgmp"
1537 if test x"$require_mpc" = "xyes" ; then
1538 gmplibs="-lmpc $gmplibs"
1543 # Specify a location for mpc
1544 # check for this first so it ends up on the link line before mpfr.
1546 [AS_HELP_STRING([--with-mpc=PATH],
1547 [specify prefix directory for installed MPC package.
1548 Equivalent to --with-mpc-include=PATH/include
1549 plus --with-mpc-lib=PATH/lib])])
1550 AC_ARG_WITH(mpc-include,
1551 [AS_HELP_STRING([--with-mpc-include=PATH],
1552 [specify directory for installed MPC include files])])
1553 AC_ARG_WITH(mpc-lib,
1554 [AS_HELP_STRING([--with-mpc-lib=PATH],
1555 [specify directory for the installed MPC library])])
1557 if test "x$with_mpc" != x; then
1558 gmplibs="-L$with_mpc/lib $gmplibs"
1559 gmpinc="-I$with_mpc/include $gmpinc"
1561 if test "x$with_mpc_include" != x; then
1562 gmpinc="-I$with_mpc_include $gmpinc"
1564 if test "x$with_mpc_lib" != x; then
1565 gmplibs="-L$with_mpc_lib $gmplibs"
1567 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1568 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1569 gmpinc='-I$$s/mpc/src '"$gmpinc"
1570 # Do not test the mpc version. Assume that it is sufficient, since
1571 # it is in the source tree, and the library has not been built yet
1572 # but it would be included on the link line in the version check below
1573 # hence making the test fail.
1577 # Specify a location for mpfr
1578 # check for this first so it ends up on the link line before gmp.
1580 [AS_HELP_STRING([--with-mpfr=PATH],
1581 [specify prefix directory for installed MPFR package.
1582 Equivalent to --with-mpfr-include=PATH/include
1583 plus --with-mpfr-lib=PATH/lib])])
1584 AC_ARG_WITH(mpfr-include,
1585 [AS_HELP_STRING([--with-mpfr-include=PATH],
1586 [specify directory for installed MPFR include files])])
1587 AC_ARG_WITH(mpfr-lib,
1588 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1589 [specify directory for the installed MPFR library])])
1591 if test "x$with_mpfr" != x; then
1592 gmplibs="-L$with_mpfr/lib $gmplibs"
1593 gmpinc="-I$with_mpfr/include $gmpinc"
1595 if test "x$with_mpfr_include" != x; then
1596 gmpinc="-I$with_mpfr_include $gmpinc"
1598 if test "x$with_mpfr_lib" != x; then
1599 gmplibs="-L$with_mpfr_lib $gmplibs"
1601 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1602 # MPFR v3.1.0 moved the sources into a src sub-directory.
1603 if ! test -d ${srcdir}/mpfr/src; then
1605 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1607 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1608 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1609 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1610 # Do not test the mpfr version. Assume that it is sufficient, since
1611 # it is in the source tree, and the library has not been built yet
1612 # but it would be included on the link line in the version check below
1613 # hence making the test fail.
1617 # Specify a location for gmp
1619 [AS_HELP_STRING([--with-gmp=PATH],
1620 [specify prefix directory for the installed GMP package.
1621 Equivalent to --with-gmp-include=PATH/include
1622 plus --with-gmp-lib=PATH/lib])])
1623 AC_ARG_WITH(gmp-include,
1624 [AS_HELP_STRING([--with-gmp-include=PATH],
1625 [specify directory for installed GMP include files])])
1626 AC_ARG_WITH(gmp-lib,
1627 [AS_HELP_STRING([--with-gmp-lib=PATH],
1628 [specify directory for the installed GMP library])])
1631 if test "x$with_gmp" != x; then
1632 gmplibs="-L$with_gmp/lib $gmplibs"
1633 gmpinc="-I$with_gmp/include $gmpinc"
1635 if test "x$with_gmp_include" != x; then
1636 gmpinc="-I$with_gmp_include $gmpinc"
1638 if test "x$with_gmp_lib" != x; then
1639 gmplibs="-L$with_gmp_lib $gmplibs"
1641 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1642 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1643 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1644 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1645 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1646 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1647 # Do not test the gmp version. Assume that it is sufficient, since
1648 # it is in the source tree, and the library has not been built yet
1649 # but it would be included on the link line in the version check below
1650 # hence making the test fail.
1654 if test "x$require_gmp" = xyes && test "x$have_gmp" = xno; then
1656 saved_CFLAGS="$CFLAGS"
1657 CFLAGS="$CFLAGS $gmpinc"
1658 # Check for the recommended and required versions of GMP.
1659 AC_MSG_CHECKING([for the correct version of gmp.h])
1660 AC_TRY_COMPILE([#include "gmp.h"],[
1661 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1662 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1663 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1666 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1667 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1668 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1669 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1672 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1673 [AC_MSG_RESULT([no]); have_gmp=no])
1675 # If we have GMP, check the MPFR version.
1676 if test x"$have_gmp" = xyes; then
1677 # Check for the recommended and required versions of MPFR.
1678 AC_MSG_CHECKING([for the correct version of mpfr.h])
1679 AC_TRY_COMPILE([#include <gmp.h>
1680 #include <mpfr.h>],[
1681 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
1684 ], [AC_TRY_COMPILE([#include <gmp.h>
1685 #include <mpfr.h>],[
1686 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
1689 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1690 [AC_MSG_RESULT([no]); have_gmp=no])
1693 # Check for the MPC header version.
1694 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes ; then
1695 # Check for the recommended and required versions of MPC.
1696 AC_MSG_CHECKING([for the correct version of mpc.h])
1697 AC_TRY_COMPILE([#include <mpc.h>],[
1698 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1701 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1702 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1705 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1706 [AC_MSG_RESULT([no]); have_gmp=no])
1709 # Now check the MPFR library.
1710 if test x"$have_gmp" = xyes; then
1712 LIBS="$LIBS $gmplibs"
1713 AC_MSG_CHECKING([for the correct version of the gmp/mpfr libraries])
1714 AC_TRY_LINK([#include <mpfr.h>],[
1720 mpfr_atan2 (n, n, x, MPFR_RNDN);
1721 mpfr_erfc (n, x, MPFR_RNDN);
1722 mpfr_subnormalize (x, t, MPFR_RNDN);
1725 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1729 # Now check the MPC library
1730 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes; then
1732 LIBS="$LIBS $gmplibs"
1733 AC_MSG_CHECKING([for the correct version of the mpc libraries])
1734 AC_TRY_LINK([#include <mpc.h>],[
1737 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1738 mpc_cosh (c, c, MPC_RNDNN);
1739 mpc_pow (c, c, c, MPC_RNDNN);
1740 mpc_acosh (c, c, MPC_RNDNN);
1742 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1746 CFLAGS="$saved_CFLAGS"
1748 # The library versions listed in the error message below should match
1749 # the HARD-minimums enforced above.
1750 if test x$have_gmp != xyes; then
1751 if test -d ${srcdir}/gcc ; then
1752 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
1753 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1754 their locations. Source code for these libraries can be found at
1755 their respective hosting sites as well as at
1756 https://gcc.gnu.org/pub/gcc/infrastructure/. See also
1757 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1758 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1759 make sure that you have installed both the libraries and the header
1760 files. They may be located in separate packages.])
1762 AC_MSG_ERROR([Building GDB requires GMP 4.2+, and MPFR 3.1.0+.
1763 Try the --with-gmp and/or --with-mpfr options to specify
1764 their locations. If you obtained GMP and/or MPFR from a vendor
1765 distribution package, make sure that you have installed both the libraries
1766 and the header files. They may be located in separate packages.])
1771 # Flags needed for both GMP, MPFR and/or MPC.
1774 AC_SUBST(extra_mpfr_configure_flags)
1775 AC_SUBST(extra_mpc_gmp_configure_flags)
1776 AC_SUBST(extra_mpc_mpfr_configure_flags)
1777 AC_SUBST(extra_isl_gmp_configure_flags)
1779 # Libraries to use for stage1 or when not bootstrapping.
1780 AC_ARG_WITH(stage1-libs,
1781 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1782 [if test "$withval" = "no" -o "$withval" = "yes"; then
1785 stage1_libs=$withval
1788 AC_SUBST(stage1_libs)
1790 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1791 # default is yes if gcc is being built; no otherwise. The reason for
1792 # this default is that gdb is sometimes linked against GNU Source
1793 # Highlight, which is a shared library that uses C++ exceptions. In
1794 # this case, -static-libstdc++ will cause crashes.
1795 AC_ARG_WITH(static-standard-libraries,
1796 [AS_HELP_STRING([--with-static-standard-libraries],
1797 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1798 [], [with_static_standard_libraries=auto])
1799 if test "$with_static_standard_libraries" = auto; then
1800 with_static_standard_libraries=$have_compiler
1803 # Linker flags to use for stage1 or when not bootstrapping.
1804 AC_ARG_WITH(stage1-ldflags,
1805 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1806 [if test "$withval" = "no" -o "$withval" = "yes"; then
1809 stage1_ldflags=$withval
1812 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1813 # if supported. But if the user explicitly specified the libraries to use,
1814 # trust that they are doing what they want.
1815 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1816 -a "$have_static_libs" = yes; then
1817 stage1_ldflags="-static-libstdc++ -static-libgcc"
1819 AC_SUBST(stage1_ldflags)
1821 # Libraries to use for stage2 and later builds.
1822 AC_ARG_WITH(boot-libs,
1823 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1824 [if test "$withval" = "no" -o "$withval" = "yes"; then
1827 poststage1_libs=$withval
1830 AC_SUBST(poststage1_libs)
1832 # Linker flags to use for stage2 and later builds.
1833 AC_ARG_WITH(boot-ldflags,
1834 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1835 [linker flags for stage2 and later])],
1836 [if test "$withval" = "no" -o "$withval" = "yes"; then
1839 poststage1_ldflags=$withval
1841 [poststage1_ldflags=
1842 # In stages 2 and 3, default to linking libstdc++ and libgcc
1843 # statically. But if the user explicitly specified the libraries to
1844 # use, trust that they are doing what they want.
1845 if test "$poststage1_libs" = ""; then
1846 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1848 AC_SUBST(poststage1_ldflags)
1850 # GCC GRAPHITE dependency isl.
1851 # Basic setup is inlined here, actual checks are in config/isl.m4
1856 [Specify prefix directory for the installed isl package.
1857 Equivalent to --with-isl-include=PATH/include
1858 plus --with-isl-lib=PATH/lib])])
1860 # Treat --without-isl as a request to disable
1861 # GRAPHITE support and skip all following checks.
1862 if test "x$with_isl" != "xno"; then
1864 dnl Provide configure switches and initialize islinc & isllibs
1865 dnl with user input.
1867 dnl The versions of isl that work for Graphite
1869 dnl Only execute fail-action, if isl has been requested.
1871 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1874 # If the isl check failed, disable builds of in-tree variant of isl
1875 if test "x$with_isl" = xno ||
1876 test "x$gcc_cv_isl" = xno; then
1877 noconfigdirs="$noconfigdirs isl"
1884 # Check for LTO support.
1886 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1887 enable_lto=$enableval,
1888 enable_lto=yes; default_enable_lto=yes)
1890 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1891 build_lto_plugin=yes
1892 ],[if test x"$default_enable_lto" = x"yes" ; then
1894 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1895 # On other non-ELF platforms, LTO has yet to be validated.
1899 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1900 # It would also be nice to check the binutils support, but we don't
1901 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1902 # warn during gcc/ subconfigure; unless you're bootstrapping with
1903 # -flto it won't be needed until after installation anyway.
1905 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1906 *) if test x"$enable_lto" = x"yes"; then
1907 AC_MSG_ERROR([LTO support is not enabled for this target.])
1912 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1913 # Build it unless LTO was explicitly disabled.
1915 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1920 AC_ARG_ENABLE(linker-plugin-configure-flags,
1921 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1922 [additional flags for configuring linker plugins @<:@none@:>@])],
1923 extra_linker_plugin_configure_flags=$enableval,
1924 extra_linker_plugin_configure_flags=)
1925 AC_SUBST(extra_linker_plugin_configure_flags)
1926 AC_ARG_ENABLE(linker-plugin-flags,
1927 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1928 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1929 extra_linker_plugin_flags=$enableval,
1930 extra_linker_plugin_flags=)
1931 AC_SUBST(extra_linker_plugin_flags)
1933 # Handle --enable-host-pie
1934 # If host PIE executables are the default (or must be forced on) for some host,
1935 # we must pass that configuration to the gcc directory.
1937 AC_ARG_ENABLE(host-pie,
1938 [AS_HELP_STRING([--enable-host-pie],
1939 [build position independent host executables])],
1940 [host_pie=$enableval
1943 if test x$host_pie != xyes ; then
1944 # for Darwin20+ this is required.
1945 AC_MSG_WARN([PIE executables are required for the configured host, host-pie setting ignored.])
1947 gcc_host_pie=--enable-host-pie
1953 # Default to PIE (mandatory for aarch64).
1955 gcc_host_pie=--enable-host-pie
1961 AC_SUBST(gcc_host_pie)
1963 # Enable --enable-host-shared.
1964 # Checked early to determine whether jit is an 'all' language
1965 AC_ARG_ENABLE(host-shared,
1966 [AS_HELP_STRING([--enable-host-shared],
1967 [build host code as shared libraries])],
1968 [host_shared=$enableval
1970 x86_64-*-darwin* | aarch64-*-darwin*)
1971 if test x$host_shared != xyes ; then
1972 # PIC is the default, and actually cannot be switched off.
1973 AC_MSG_WARN([PIC code is required for the configured host; host-shared setting ignored.])
1977 if test x$host_pie = xyes -a x$host_shared != xyes ; then
1978 AC_MSG_WARN([PIC code is required for PIE host executables host-shared setting ignored.])
1984 # 64B x86_64 and Aarch64 Darwin default to PIC.
1985 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
1986 # 32B and powerpc64 Darwin must use PIC to link PIE exes.
1987 *-*-darwin*) host_shared=$host_pie ;;
1991 AC_SUBST(host_shared)
1993 if test x$host_shared = xyes; then
1996 # Since host shared is the default for 64b Darwin, and also enabled for
1997 # host_pie, ensure that we present the PIE flag when host_pie is active.
1998 if test x$host_pie = xyes; then
2006 elif test x$host_pie = xyes; then
2014 # If we are building PIC/PIE host executables, and we are building dependent
2015 # libs (e.g. GMP) in-tree those libs need to be configured to generate PIC
2018 if test "$host_shared" = "yes" -o "$host_pie" = "yes"; then
2019 host_libs_picflag='--with-pic'
2021 AC_SUBST(host_libs_picflag)
2023 # By default, C and C++ are the only stage 1 languages.
2024 stage1_languages=,c,
2026 # Target libraries that we bootstrap.
2027 bootstrap_target_libs=,target-libgcc,
2029 # Figure out what language subdirectories are present.
2030 # Look if the user specified --enable-languages="..."; if not, use
2031 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2033 # NB: embedded tabs in this IF block -- do not untabify
2034 if test -d ${srcdir}/gcc; then
2035 if test x"${enable_languages+set}" != xset; then
2036 if test x"${LANGUAGES+set}" = xset; then
2037 enable_languages="${LANGUAGES}"
2038 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
2040 enable_languages=default
2043 if test x"${enable_languages}" = x ||
2044 test x"${enable_languages}" = xyes;
2046 echo configure.ac: --enable-languages needs at least one language argument 1>&2
2050 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2052 # 'f95' is the old name for the 'fortran' language. We issue a warning
2053 # and make the substitution.
2054 case ,${enable_languages}, in
2056 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
2057 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
2061 # If bootstrapping, C++ must be enabled.
2062 case ",$enable_languages,:$enable_bootstrap" in
2065 if test -f ${srcdir}/gcc/cp/config-lang.in; then
2066 enable_languages="${enable_languages},c++"
2068 AC_MSG_ERROR([bootstrapping requires c++ sources])
2073 # First scan to see if an enabled language requires some other language.
2074 # We assume that a given config-lang.in will list all the language
2075 # front ends it requires, even if some are required indirectly.
2076 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2077 case ${lang_frag} in
2079 # The odd quoting in the next line works around
2080 # an apparent bug in bash 1.12 on linux.
2081 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2083 # From the config-lang.in, get $language, $lang_requires, and
2084 # $lang_requires_boot_languages.
2087 lang_requires_boot_languages=
2088 # set srcdir during sourcing lang_frag to the gcc dir.
2089 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
2090 # polutes this shell
2091 saved_srcdir=${srcdir}
2092 srcdir=${srcdir}/gcc . ${lang_frag}
2093 srcdir=${saved_srcdir}
2094 for other in ${lang_requires} ${lang_requires_boot_languages}; do
2095 case ,${enable_languages}, in
2100 echo " \`$other' language required by \`$language'; enabling" 1>&2
2101 enable_languages="${enable_languages},${other}"
2105 for other in ${lang_requires_boot_languages} ; do
2106 if test "$other" != "c"; then
2107 case ,${enable_stage1_languages}, in
2112 case ,${enable_languages}, in
2114 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
2115 enable_stage1_languages="$enable_stage1_languages,${other}"
2126 new_enable_languages=,c,
2128 # If LTO is enabled, add the LTO front end.
2129 if test "$enable_lto" = "yes" ; then
2130 case ,${enable_languages}, in
2132 *) enable_languages="${enable_languages},lto" ;;
2134 if test "${build_lto_plugin}" = "yes" ; then
2135 configdirs="$configdirs lto-plugin"
2139 # If we're building an offloading compiler, add the LTO front end.
2140 if test x"$enable_as_accelerator_for" != x ; then
2141 case ,${enable_languages}, in
2143 *) enable_languages="${enable_languages},lto" ;;
2147 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
2148 potential_languages=,c,
2150 enabled_target_libs=
2151 disabled_target_libs=
2153 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2154 case ${lang_frag} in
2156 # The odd quoting in the next line works around
2157 # an apparent bug in bash 1.12 on linux.
2158 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2160 # From the config-lang.in, get $language, $target_libs,
2161 # $lang_dirs, $boot_language, and $build_by_default
2167 build_by_default=yes
2168 # set srcdir during sourcing. See above about save & restore
2169 saved_srcdir=${srcdir}
2170 srcdir=${srcdir}/gcc . ${lang_frag}
2171 srcdir=${saved_srcdir}
2172 if test x${language} = x; then
2173 echo "${lang_frag} doesn't set \$language." 1>&2
2177 if test "$language" = "c++"; then
2182 # C is always enabled, so no need to add it again
2183 if test "$language" != "c"; then
2184 case ,${enable_languages}, in
2186 # Language was explicitly selected; include it
2190 # All languages are enabled
2194 # 'default' was selected, select it if it is a default language
2195 add_this_lang=${build_by_default}
2200 # Disable languages that need other directories if these aren't available.
2201 for i in $subdir_requires; do
2202 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2203 case ${add_this_lang} in
2205 # Specifically requested language; tell them.
2206 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2209 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2210 add_this_lang=unsupported
2214 add_this_lang=unsupported
2219 # Disable Ada if no preexisting GNAT is available.
2220 case ${add_this_lang}:${language}:${have_gnat} in
2222 # Specifically requested language; tell them.
2223 AC_MSG_ERROR([GNAT is required to build $language])
2226 AC_MSG_WARN([GNAT is required to build $language])
2227 add_this_lang=unsupported
2231 add_this_lang=unsupported
2235 # Disable D if no preexisting GDC is available.
2236 case ${add_this_lang}:${language}:${have_gdc} in
2238 # Specifically requested language; tell them.
2239 AC_MSG_ERROR([GDC is required to build $language])
2242 AC_MSG_WARN([GDC is required to build $language])
2243 add_this_lang=unsupported
2247 add_this_lang=unsupported
2251 # Disable jit if -enable-host-shared not specified
2252 # but not if building for Mingw. All code in Windows
2253 # is position independent code (PIC).
2257 case ${add_this_lang}:${language}:${host_shared} in
2259 # PR jit/64780: explicitly specify --enable-host-shared
2261 Enabling language "jit" requires --enable-host-shared.
2263 --enable-host-shared typically slows the rest of the compiler down by
2264 a few %, so you must explicitly enable it.
2266 If you want to build both the jit and the regular compiler, it is often
2267 best to do this via two separate configure/builds, in separate
2268 directories, to avoid imposing the performance cost of
2269 --enable-host-shared on the regular compiler.])
2272 AC_MSG_WARN([--enable-host-shared required to build $language])
2273 add_this_lang=unsupported
2277 add_this_lang=unsupported
2283 # Disable a language that is unsupported by the target.
2284 case "${add_this_lang}: $unsupported_languages " in
2288 AC_MSG_WARN([${language} not supported for this target])
2289 add_this_lang=unsupported
2293 case $add_this_lang in
2295 # Remove language-dependent dirs.
2296 disabled_target_libs="$disabled_target_libs $target_libs"
2297 noconfigdirs="$noconfigdirs $lang_dirs"
2300 # Remove language-dependent dirs; still show language as supported.
2301 disabled_target_libs="$disabled_target_libs $target_libs"
2302 noconfigdirs="$noconfigdirs $lang_dirs"
2303 potential_languages="${potential_languages}${language},"
2306 new_enable_languages="${new_enable_languages}${language},"
2307 potential_languages="${potential_languages}${language},"
2308 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2309 enabled_target_libs="$enabled_target_libs $target_libs"
2310 case "${boot_language}:,$enable_stage1_languages," in
2311 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2312 # Add to (comma-separated) list of stage 1 languages.
2313 case ",$stage1_languages," in
2314 *,$language,* | ,yes, | ,all,) ;;
2315 *) stage1_languages="${stage1_languages}${language}," ;;
2317 # We need to bootstrap any supporting libraries.
2318 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2327 # Add target libraries which are only needed for disabled languages
2329 if test -n "$disabled_target_libs"; then
2330 for dir in $disabled_target_libs; do
2331 case " $enabled_target_libs " in
2333 *) noconfigdirs="$noconfigdirs $dir" ;;
2338 AC_ARG_ENABLE(stage1-languages,
2339 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2340 [choose additional languages to build during
2341 stage1. Mostly useful for compiler development])],
2342 [case ,${enable_stage1_languages}, in
2344 # Set it to something that will have no effect in the loop below
2345 enable_stage1_languages=c ;;
2347 enable_stage1_languages=`echo $new_enable_languages | \
2348 sed -e "s/^,//" -e "s/,$//" ` ;;
2350 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2351 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2354 # Add "good" languages from enable_stage1_languages to stage1_languages,
2355 # while "bad" languages go in missing_languages. Leave no duplicates.
2356 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2357 case $potential_languages in
2359 case $stage1_languages in
2361 *) stage1_languages="$stage1_languages$i," ;;
2364 case $missing_languages in
2366 *) missing_languages="$missing_languages$i," ;;
2371 # Remove leading/trailing commas that were added for simplicity
2372 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2373 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2374 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2375 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2377 if test "x$missing_languages" != x; then
2379 The following requested languages could not be built: ${missing_languages}
2380 Supported languages are: ${potential_languages}])
2382 if test "x$new_enable_languages" != "x$enable_languages"; then
2383 echo The following languages will be built: ${new_enable_languages}
2384 enable_languages="$new_enable_languages"
2387 AC_SUBST(stage1_languages)
2388 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2391 # Handle --disable-<component> generically.
2392 for dir in $configdirs $build_configdirs $target_configdirs ; do
2393 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2394 varname=`echo $dirname | sed -e s/+/_/g`
2395 if eval test x\${enable_${varname}} "=" xno ; then
2396 noconfigdirs="$noconfigdirs $dir"
2400 # Check for Boehm's garbage collector
2401 AC_ARG_ENABLE(objc-gc,
2402 [AS_HELP_STRING([--enable-objc-gc],
2403 [enable use of Boehm's garbage collector with the
2404 GNU Objective-C runtime])])
2405 AC_ARG_WITH([target-bdw-gc],
2406 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2407 [specify prefix directory for installed bdw-gc package.
2408 Equivalent to --with-target-bdw-gc-include=PATH/include
2409 plus --with-target-bdw-gc-lib=PATH/lib])])
2410 AC_ARG_WITH([target-bdw-gc-include],
2411 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2412 [specify directories for installed bdw-gc include files])])
2413 AC_ARG_WITH([target-bdw-gc-lib],
2414 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2415 [specify directories for installed bdw-gc library])])
2417 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2418 AC_MSG_CHECKING([for bdw garbage collector])
2419 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2420 dnl no bdw-gw options, assume default locations
2421 AC_MSG_RESULT([using bdw-gc in default locations])
2423 dnl bdw-gw options, first error checking, complete checking in libobjc
2424 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2425 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2426 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2427 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2429 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2434 # Disable libitm, libsanitizer, libvtv if we're not building C++
2435 case ,${enable_languages}, in
2437 # Disable libitm, libsanitizer if we're not building libstdc++
2438 case "${noconfigdirs}" in
2439 *target-libstdc++-v3*)
2440 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2446 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer target-libvtv"
2450 # If gcc/ is not in the source tree then we'll not be building a
2451 # target compiler, assume in that case we don't want to build any
2452 # target libraries or tools.
2454 # This was added primarily for the benefit for binutils-gdb who reuse
2455 # this configure script, but don't always have target tools available.
2456 if test ! -d ${srcdir}/gcc; then
2457 skipdirs="${skipdirs} ${target_configdirs}"
2460 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2461 # $build_configdirs and $target_configdirs.
2462 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2465 for dir in . $skipdirs $noconfigdirs ; do
2466 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2467 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2468 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2469 if test -r $srcdir/$dirname/configure ; then
2470 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2473 notsupp="$notsupp $dir"
2477 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2478 build_configdirs=`echo " ${build_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 " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2488 target_configdirs=`echo " ${target_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 $dir"
2499 # Quietly strip out all directories which aren't configurable in this tree.
2500 # This relies on all configurable subdirectories being autoconfiscated, which
2502 build_configdirs_all="$build_configdirs"
2504 for i in ${build_configdirs_all} ; do
2505 j=`echo $i | sed -e s/build-//g`
2506 if test -f ${srcdir}/$j/configure ; then
2507 build_configdirs="${build_configdirs} $i"
2511 configdirs_all="$configdirs"
2513 for i in ${configdirs_all} ; do
2514 if test -f ${srcdir}/$i/configure ; then
2515 configdirs="${configdirs} $i"
2519 target_configdirs_all="$target_configdirs"
2521 for i in ${target_configdirs_all} ; do
2522 j=`echo $i | sed -e s/target-//g`
2523 if test -f ${srcdir}/$j/configure ; then
2524 target_configdirs="${target_configdirs} $i"
2528 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2529 # so we have to add it after the preceding checks.
2530 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2532 case " $configdirs " in
2534 # If we can build libiberty, we can also build libiberty-linker-plugin.
2535 configdirs="$configdirs libiberty-linker-plugin"
2536 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2537 --with-libiberty=../libiberty-linker-plugin";;
2539 AC_MSG_ERROR([libiberty missing]);;
2543 # Sometimes we have special requirements for the host libiberty.
2544 extra_host_libiberty_configure_flags=
2545 case " $configdirs " in
2546 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
2547 # When these are to be built as shared libraries, the same applies to
2549 extra_host_libiberty_configure_flags=--enable-shared
2552 AC_SUBST(extra_host_libiberty_configure_flags)
2554 # Sometimes we have special requirements for the host zlib.
2555 extra_host_zlib_configure_flags=
2556 case " $configdirs " in
2558 # When bfd is to be built as a shared library, the same applies to
2560 if test "$enable_shared" = "yes"; then
2561 extra_host_zlib_configure_flags=--enable-host-shared
2565 AC_SUBST(extra_host_zlib_configure_flags)
2567 # Produce a warning message for the subdirs we can't configure.
2568 # This isn't especially interesting in the Cygnus tree, but in the individual
2569 # FSF releases, it's important to let people know when their machine isn't
2570 # supported by the one or two programs in a package.
2572 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2573 # If $appdirs is non-empty, at least one of those directories must still
2574 # be configured, or we error out. (E.g., if the gas release supports a
2575 # specified target in some subdirs but not the gas subdir, we shouldn't
2576 # pretend that all is well.)
2577 if test -n "$appdirs" ; then
2578 for dir in $appdirs ; do
2579 if test -r $dir/Makefile.in ; then
2580 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2584 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2590 if test -n "$appdirs" ; then
2591 echo "*** This configuration is not supported by this package." 1>&2
2595 # Okay, some application will build, or we don't care to check. Still
2596 # notify of subdirs not getting built.
2597 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2598 echo " ${notsupp}" 1>&2
2599 echo " (Any other directories should still work fine.)" 1>&2
2607 # To find our prefix, in gcc_cv_tool_prefix.
2612 AC_ARG_WITH([build-sysroot],
2613 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2614 [use sysroot as the system root during the build])],
2615 [if test x"$withval" != x ; then
2616 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2618 [SYSROOT_CFLAGS_FOR_TARGET=])
2619 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2621 AC_ARG_WITH([debug-prefix-map],
2622 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2623 [map A to B, C to D ... in debug information])],
2624 [if test x"$withval" != x; then
2625 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2626 for debug_map in $withval; do
2627 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2630 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2631 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2633 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2634 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2635 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2636 # We want to ensure that TARGET libraries (which we know are built with
2637 # gcc) are built with "-O2 -g", so include those options when setting
2638 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2639 if test "x$CFLAGS_FOR_TARGET" = x; then
2640 if test "x${is_cross_compiler}" = xyes; then
2641 CFLAGS_FOR_TARGET="-g -O2"
2643 CFLAGS_FOR_TARGET=$CFLAGS
2646 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2649 *" -g "* | *" -g3 "*) ;;
2650 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2654 AC_SUBST(CFLAGS_FOR_TARGET)
2656 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2657 if test "x${is_cross_compiler}" = xyes; then
2658 CXXFLAGS_FOR_TARGET="-g -O2"
2660 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2661 case " $CXXFLAGS " in
2663 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2665 case " $CXXFLAGS " in
2666 *" -g "* | *" -g3 "*) ;;
2667 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2671 AC_SUBST(CXXFLAGS_FOR_TARGET)
2673 AC_SUBST(LDFLAGS_FOR_TARGET)
2675 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2676 # the named directory are copied to $(tooldir)/sys-include.
2677 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2678 if test x${is_cross_compiler} = xno ; then
2679 echo 1>&2 '***' --with-headers is only supported when cross compiling
2682 if test x"${with_headers}" != xyes ; then
2683 x=${gcc_cv_tool_prefix}
2684 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2688 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2689 # the name directories are copied to $(tooldir)/lib. Multiple directories
2691 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2692 if test x${is_cross_compiler} = xno ; then
2693 echo 1>&2 '***' --with-libs is only supported when cross compiling
2696 if test x"${with_libs}" != xyes ; then
2697 # Copy the libraries in reverse order, so that files in the first named
2698 # library override files in subsequent libraries.
2699 x=${gcc_cv_tool_prefix}
2700 for l in ${with_libs}; do
2701 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2706 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2708 # This is done by determining whether or not the appropriate directory
2709 # is available, and by checking whether or not specific configurations
2710 # have requested that this magic not happen.
2712 # The command line options always override the explicit settings in
2713 # configure.ac, and the settings in configure.ac override this magic.
2715 # If the default for a toolchain is to use GNU as and ld, and you don't
2716 # want to do that, then you should use the --without-gnu-as and
2717 # --without-gnu-ld options for the configure script. Similarly, if
2718 # the default is to use the included zlib and you don't want to do that,
2719 # you should use the --with-system-zlib option for the configure script.
2721 if test x${use_gnu_as} = x &&
2722 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2724 extra_host_args="$extra_host_args --with-gnu-as"
2727 if test x${use_gnu_ld} = x &&
2728 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2730 extra_host_args="$extra_host_args --with-gnu-ld"
2733 if test x${use_included_zlib} = x &&
2734 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2737 with_system_zlib=yes
2738 extra_host_args="$extra_host_args --with-system-zlib"
2741 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2742 # can detect this case.
2744 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2746 extra_host_args="$extra_host_args --with-newlib"
2749 # Handle ${copy_dirs}
2750 set fnord ${copy_dirs}
2752 while test $# != 0 ; do
2753 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2756 echo Copying $1 to $2
2758 # Use the install script to create the directory and all required
2759 # parent directories.
2760 if test -d $2 ; then
2764 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2767 # Copy the directory, assuming we have tar.
2768 # FIXME: Should we use B in the second tar? Not all systems support it.
2769 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2771 # It is the responsibility of the user to correctly adjust all
2772 # symlinks. If somebody can figure out how to handle them correctly
2773 # here, feel free to add the code.
2780 # Determine a target-dependent exec_prefix that the installed
2781 # gcc will search in. Keep this list sorted by triplet, with
2782 # the *-*-osname triplets last.
2785 i[[34567]]86-pc-msdosdjgpp*)
2786 md_exec_prefix=/dev/env/DJDIR/bin
2791 md_exec_prefix=/usr/ccs/bin
2795 extra_arflags_for_target=
2796 extra_nmflags_for_target=
2797 extra_ranlibflags_for_target=
2798 target_makefile_frag=/dev/null
2801 target_makefile_frag="config/mt-spu"
2803 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2804 target_makefile_frag="config/mt-sde"
2806 mipsisa*-*-elfoabi*)
2807 target_makefile_frag="config/mt-mips-elfoabi"
2809 mips*-*-*linux* | mips*-*-gnu*)
2810 target_makefile_frag="config/mt-mips-gnu"
2813 target_makefile_frag="config/mt-nios2-elf"
2816 target_makefile_frag="config/mt-android"
2818 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2819 target_makefile_frag="config/mt-gnu"
2821 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2822 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2823 # commands to handle both 32-bit and 64-bit objects. These flags are
2824 # harmless if we're using GNU nm or ar.
2825 extra_arflags_for_target=" -X32_64"
2826 extra_nmflags_for_target=" -B -X32_64"
2830 alphaieee_frag=/dev/null
2833 # This just makes sure to use the -mieee option to build target libs.
2834 # This should probably be set individually by each library.
2835 alphaieee_frag="config/mt-alphaieee"
2839 # If --enable-target-optspace always use -Os instead of -O2 to build
2840 # the target libraries, similarly if it is not specified, use -Os
2841 # on selected platforms.
2842 ospace_frag=/dev/null
2843 case "${enable_target_optspace}:${target}" in
2845 ospace_frag="config/mt-ospace"
2848 ospace_frag="config/mt-d30v"
2850 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2851 ospace_frag="config/mt-ospace"
2856 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2860 # Some systems (e.g., one of the i386-aix systems the gas testers are
2861 # using) don't handle "\$" correctly, so don't use it here.
2862 tooldir='${exec_prefix}'/${target_noncanonical}
2863 build_tooldir=${tooldir}
2865 # Create a .gdbinit file which runs the one in srcdir
2866 # and tells GDB to look there for source files.
2868 if test -r ${srcdir}/.gdbinit ; then
2871 *) cat > ./.gdbinit <<EOF
2875 source ${srcdir}/.gdbinit
2881 # Make sure that the compiler is able to generate an executable. If it
2882 # can't, we are probably in trouble. We don't care whether we can run the
2883 # executable--we might be using a cross compiler--we only care whether it
2884 # can be created. At this point the main configure script has set CC.
2886 echo "int main () { return 0; }" > conftest.c
2887 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2888 if test $? = 0 ; then
2889 if test -s conftest || test -s conftest.exe ; then
2895 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2896 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2903 # Decide which environment variable is used to find dynamic libraries.
2905 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2906 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2907 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2908 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2911 # On systems where the dynamic library environment variable is PATH,
2912 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2913 # built executables to PATH.
2914 if test "$RPATH_ENVVAR" = PATH; then
2915 GCC_SHLIB_SUBDIR=/shlib
2920 # Adjust the toplevel makefile according to whether bootstrap was selected.
2921 case $enable_bootstrap in
2923 bootstrap_suffix=bootstrap
2924 BUILD_CONFIG=bootstrap-debug
2927 bootstrap_suffix=no-bootstrap
2932 AC_MSG_CHECKING(for default BUILD_CONFIG)
2934 AC_ARG_WITH([build-config],
2935 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2936 [use config/NAME.mk build configuration])],
2937 [case $with_build_config in
2938 yes) with_build_config= ;;
2939 no) with_build_config= BUILD_CONFIG= ;;
2942 if test "x${with_build_config}" != x; then
2943 BUILD_CONFIG=$with_build_config
2945 case $BUILD_CONFIG in
2947 if echo "int f (void) { return 0; }" > conftest.c &&
2948 ${CC} -c conftest.c &&
2949 mv conftest.o conftest.o.g0 &&
2950 ${CC} -c -g conftest.c &&
2951 mv conftest.o conftest.o.g &&
2952 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2957 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2961 AC_MSG_RESULT($BUILD_CONFIG)
2962 AC_SUBST(BUILD_CONFIG)
2964 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2965 AC_MSG_CHECKING([for --enable-vtable-verify])
2966 AC_ARG_ENABLE(vtable-verify,
2967 [AS_HELP_STRING([--enable-vtable-verify],
2968 [Enable vtable verification feature])],
2969 [case "$enableval" in
2970 yes) enable_vtable_verify=yes ;;
2971 no) enable_vtable_verify=no ;;
2972 *) enable_vtable_verify=no;;
2974 [enable_vtable_verify=no])
2975 AC_MSG_RESULT($enable_vtable_verify)
2977 # Record target_configdirs and the configure arguments for target and
2978 # build configuration in Makefile.
2979 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2980 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2981 bootstrap_fixincludes=no
2983 # If we are building libgomp, bootstrap it.
2984 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2985 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2988 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2989 # or bootstrap-ubsan, bootstrap it.
2990 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2991 case "$BUILD_CONFIG" in
2992 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
2993 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2994 bootstrap_fixincludes=yes
2999 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
3000 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
3001 test "$enable_vtable_verify" != no; then
3002 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
3005 # If we are building libatomic and the list of enabled languages includes the
3006 # D frontend, bootstrap it.
3007 if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
3008 case ,${enable_languages}, in
3010 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
3015 # Determine whether gdb needs tk/tcl or not.
3016 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
3017 # and in that case we want gdb to be built without tk. Ugh!
3018 # In fact I believe gdb is the *only* package directly dependent on tk,
3019 # so we should be able to put the 'maybe's in unconditionally and
3020 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
3021 # 100% sure that that's safe though.
3023 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
3024 case "$enable_gdbtk" in
3028 GDB_TK="${gdb_tk}" ;;
3030 # Only add the dependency on gdbtk when GDBtk is part of the gdb
3031 # distro. Eventually someone will fix this and move Insight, nee
3032 # gdbtk to a separate directory.
3033 if test -d ${srcdir}/gdb/gdbtk ; then
3040 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
3041 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
3043 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
3044 # else does, only include them if one of these is built. The Makefile
3045 # provides the ordering, so it's enough here to add to the list.
3046 case " ${configdirs} " in
3048 configdirs="${configdirs} gnulib gdbsupport"
3051 configdirs="${configdirs} gnulib gdbsupport"
3054 configdirs="${configdirs} gnulib"
3058 # Strip out unwanted targets.
3060 # While at that, we remove Makefiles if we were started for recursive
3061 # configuration, so that the top-level Makefile reconfigures them,
3062 # like we used to do when configure itself was recursive.
3064 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
3065 # but now we're fixing up the Makefile ourselves with the additional
3066 # commands passed to AC_CONFIG_FILES. Use separate variables
3067 # extrasub-{build,host,target} not because there is any reason to split
3068 # the substitutions up that way, but only to remain below the limit of
3069 # 99 commands in a script, for HP-UX sed.
3071 # Do not nest @if/@endif or @unless/@endunless pairs, because
3072 # configure will not warn you at all.
3074 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
3075 yes:yes:*\ gold\ *:*,c++,*) ;;
3076 yes:yes:*\ gold\ *:*)
3077 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
3082 for module in ${build_configdirs} ; do
3083 if test -z "${no_recursion}" \
3084 && test -f ${build_subdir}/${module}/Makefile; then
3085 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
3086 rm -f ${build_subdir}/${module}/Makefile
3088 extrasub_build="$extrasub_build
3089 /^@if build-$module\$/d
3090 /^@endif build-$module\$/d
3091 /^@unless build-$module\$/,/^@endunless build-$module\$/d
3092 /^@if build-$module-$bootstrap_suffix\$/d
3093 /^@endif build-$module-$bootstrap_suffix\$/d
3094 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
3097 for module in ${configdirs} ; do
3098 if test -z "${no_recursion}"; then
3099 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
3100 if test -f ${file}; then
3101 echo 1>&2 "*** removing ${file} to force reconfigure"
3106 case ${module},${bootstrap_fixincludes} in
3107 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
3108 *) host_bootstrap_suffix=$bootstrap_suffix ;;
3110 extrasub_host="$extrasub_host
3112 /^@endif $module\$/d
3113 /^@unless $module\$/,/^@endunless $module\$/d
3114 /^@if $module-$host_bootstrap_suffix\$/d
3115 /^@endif $module-$host_bootstrap_suffix\$/d
3116 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
3119 for module in ${target_configdirs} ; do
3120 if test -z "${no_recursion}" \
3121 && test -f ${target_subdir}/${module}/Makefile; then
3122 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
3123 rm -f ${target_subdir}/${module}/Makefile
3126 # We only bootstrap target libraries listed in bootstrap_target_libs.
3127 case $bootstrap_target_libs in
3128 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
3129 *) target_bootstrap_suffix=no-bootstrap ;;
3132 extrasub_target="$extrasub_target
3133 /^@if target-$module\$/d
3134 /^@endif target-$module\$/d
3135 /^@unless target-$module\$/,/^@endunless target-$module\$/d
3136 /^@if target-$module-$target_bootstrap_suffix\$/d
3137 /^@endif target-$module-$target_bootstrap_suffix\$/d
3138 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
3141 # Do the final fixup along with target modules.
3142 extrasub_target="$extrasub_target
3147 if test "$enable_pgo_build" != "no"; then
3148 extrasub_build="$extrasub_build
3150 /^@endif pgo-build\$/d"
3153 # Create the serialization dependencies. This uses a temporary file.
3155 AC_ARG_ENABLE([serial-configure],
3156 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3157 [force sequential configuration of
3158 sub-packages for the host, target or build
3159 machine, or all sub-packages])])
3161 case ${enable_serial_configure} in
3163 enable_serial_build_configure=yes
3164 enable_serial_host_configure=yes
3165 enable_serial_target_configure=yes
3169 # These force 'configure's to be done one at a time, to avoid problems
3170 # with contention over a shared config.cache.
3172 if test "x${enable_serial_build_configure}" = xyes || test "x${enable_serial_host_configure}" = xyes || test "x${enable_serial_target_configure}" = xyes; then
3173 echo '# serdep.tmp' > serdep.tmp
3176 test "x${enable_serial_build_configure}" = xyes &&
3177 for item in ${build_configdirs} ; do
3180 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
3185 test "x${enable_serial_host_configure}" = xyes &&
3186 for item in ${configdirs} ; do
3189 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
3194 test "x${enable_serial_target_configure}" = xyes &&
3195 for item in ${target_configdirs} ; do
3198 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
3202 serialization_dependencies=serdep.tmp
3203 AC_SUBST_FILE(serialization_dependencies)
3205 # Base args. Strip norecursion, cache-file, srcdir, host, build,
3206 # target, nonopt, and variable assignments. These are the ones we
3207 # might not want to pass down to subconfigures. The exception being
3208 # --cache-file=/dev/null, which is used to turn off the use of cache
3209 # files altogether, and which should be passed on to subconfigures.
3210 # Also strip program-prefix, program-suffix, and program-transform-name,
3211 # so that we can pass down a consistent program-transform-name.
3216 eval "set -- $ac_configure_args"
3219 if test X"$skip_next" = X"yes"; then
3223 if test X"$keep_next" = X"yes"; then
3226 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3228 baseargs="$baseargs '$ac_arg'"
3229 tbaseargs="$tbaseargs '$ac_arg'"
3234 # Handle separated arguments. Based on the logic generated by
3237 *=* | --config-cache | -C | -disable-* | --disable-* \
3238 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3239 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3240 | -with-* | --with-* | -without-* | --without-* | --x)
3254 --with-* | --without-*)
3255 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3259 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3262 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3271 mpc | mpfr | gmp | isl)
3272 # If we're processing --with-$lib, --with-$lib-include or
3273 # --with-$lib-lib, for one of the libs above, and target is
3274 # different from host, don't pass the current argument to any
3275 # target library's configure.
3276 if test x$is_cross_compiler = xyes; then
3285 --cache-file=/dev/null | \
3286 -cache-file=/dev/null )
3287 # Handled here to avoid the test to skip args below.
3288 baseargs="$baseargs '$ac_arg'"
3289 tbaseargs="$tbaseargs '$ac_arg'"
3290 # Assert: $separate_arg should always be no.
3291 keep_next=$separate_arg
3307 -program-prefix* | \
3308 -program-suffix* | \
3309 -program-transform-name* )
3310 skip_next=$separate_arg
3314 # An option. Add it.
3317 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3319 baseargs="$baseargs '$ac_arg'"
3320 if test X"$skip_targ" = Xno; then
3321 tbaseargs="$tbaseargs '$ac_arg'"
3323 keep_next=$separate_arg
3326 # Either a variable assignment, or a nonopt (triplet). Don't
3327 # pass it down; let the Makefile handle this.
3332 # Remove the initial space we just introduced and, as these will be
3333 # expanded by make, quote '$'.
3334 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3336 # Add in --program-transform-name, after --program-prefix and
3337 # --program-suffix have been applied to it. Autoconf has already
3338 # doubled dollar signs and backslashes in program_transform_name; we want
3339 # the backslashes un-doubled, and then the entire thing wrapped in single
3340 # quotes, because this will be expanded first by make and then by the shell.
3341 # Also, because we want to override the logic in subdir configure scripts to
3342 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3343 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3344 ${program_transform_name}
3346 gcc_transform_name=`cat conftestsed.out`
3347 rm -f conftestsed.out
3348 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3349 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3350 if test "$silent" = yes; then
3351 baseargs="$baseargs --silent"
3352 tbaseargs="$tbaseargs --silent"
3355 baseargs="$baseargs --disable-option-checking"
3356 tbaseargs="$tbaseargs --disable-option-checking"
3358 if test "$enable_year2038" = no; then
3359 baseargs="$baseargs --disable-year2038"
3360 tbaseargs="$tbaseargs --disable-year2038"
3363 # Record and document user additions to sub configure arguments.
3364 AC_ARG_VAR([build_configargs],
3365 [additional configure arguments for build directories])
3366 AC_ARG_VAR([host_configargs],
3367 [additional configure arguments for host directories])
3368 AC_ARG_VAR([target_configargs],
3369 [additional configure arguments for target directories])
3371 # For the build-side libraries, we just need to pretend we're native,
3372 # and not use the same cache file. Multilibs are neither needed nor
3373 # desired. We can't even use the same cache file for all build-side
3374 # libraries, as they're compiled differently; some with C, some with
3375 # C++ or with different feature-enabling options.
3376 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3378 # For host modules, accept cache file option, or specification as blank.
3379 case "${cache_file}" in
3381 cache_file_option="" ;;
3382 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3383 cache_file_option="--cache-file=${cache_file}" ;;
3385 cache_file_option="--cache-file=../${cache_file}" ;;
3388 # Host dirs don't like to share a cache file either, horribly enough.
3389 # This seems to be due to autoconf 2.5x stupidity.
3390 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3392 target_configargs="$target_configargs ${tbaseargs}"
3394 # Passing a --with-cross-host argument lets the target libraries know
3395 # whether they are being built with a cross-compiler or being built
3396 # native. However, it would be better to use other mechanisms to make the
3397 # sorts of decisions they want to make on this basis. Please consider
3398 # this option to be deprecated. FIXME.
3399 if test x${is_cross_compiler} = xyes ; then
3400 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3403 # Special user-friendly check for native x86_64-linux build, if
3404 # multilib is not explicitly enabled.
3405 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3406 x86_64-*linux*:yes:$build:$build:)
3407 # Make sure we have a development environment that handles 32-bit
3409 echo "int main () { return 0; }" > conftest.c
3410 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3411 if test $? = 0 ; then
3412 if test -s conftest || test -s conftest.exe ; then
3417 if test x${dev64} != xyes ; then
3418 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.])
3423 # Default to --enable-multilib.
3424 if test x${enable_multilib} = x ; then
3425 target_configargs="--enable-multilib ${target_configargs}"
3428 # Pass --with-newlib if appropriate. Note that target_configdirs has
3429 # changed from the earlier setting of with_newlib.
3430 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3431 target_configargs="--with-newlib ${target_configargs}"
3434 # Different target subdirs use different values of certain variables
3435 # (notably CXX). Worse, multilibs use *lots* of different values.
3436 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3437 # it doesn't automatically accept command-line overrides of them.
3438 # This means it's not safe for target subdirs to share a cache file,
3439 # which is disgusting, but there you have it. Hopefully this can be
3440 # fixed in future. It's still worthwhile to use a cache file for each
3441 # directory. I think.
3443 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3444 # We need to pass --target, as newer autoconf's requires consistency
3445 # for target_alias and gcc doesn't manage it consistently.
3446 target_configargs="--cache-file=./config.cache ${target_configargs}"
3449 case " $target_configdirs " in
3451 case " $target_configargs " in
3452 *" --with-newlib "*)
3455 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3459 # If we're not building GCC, don't discard standard headers.
3460 if test -d ${srcdir}/gcc; then
3461 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3463 if test "${build}" != "${host}"; then
3464 # On Canadian crosses, CC_FOR_TARGET will have already been set
3465 # by `configure', so we won't have an opportunity to add -Bgcc/
3466 # to it. This is right: we don't want to search that directory
3467 # for binaries, but we want the header files in there, so add
3469 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3471 # Someone might think of using the pre-installed headers on
3472 # Canadian crosses, in case the installed compiler is not fully
3473 # compatible with the compiler being built. In this case, it
3474 # would be better to flag an error than risking having
3475 # incompatible object files being constructed. We can't
3476 # guarantee that an error will be flagged, but let's hope the
3477 # compiler will do it, when presented with incompatible header
3482 case "${target}-${is_cross_compiler}" in
3483 i[[3456789]]86-*-linux*-no)
3484 # Here host == target, so we don't need to build gcc,
3485 # so we don't want to discard standard headers.
3486 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3489 # If we're building newlib, use its generic headers last, but search
3490 # for any libc-related directories first (so make it the last -B
3492 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3494 # If we're building libgloss, find the startup file, simulator library
3495 # and linker script.
3496 case " $target_configdirs " in
3498 # Look for startup file, simulator library and maybe linker script.
3499 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3500 # Look for libnosys.a in case the target needs it.
3501 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3502 # Most targets have the linker script in the source directory.
3503 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3514 x86_64-*mingw* | *-w64-mingw*)
3515 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3516 # however, use a symlink named 'mingw' in ${prefix} .
3517 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3520 # MinGW can't be handled as Cygwin above since it does not use newlib.
3521 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3525 # Allow the user to override the flags for
3526 # our build compiler if desired.
3527 if test x"${build}" = x"${host}" ; then
3528 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3529 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
3530 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3531 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3534 # On Canadian crosses, we'll be searching the right directories for
3535 # the previously-installed cross compiler, so don't bother to add
3536 # flags for directories within the install tree of the compiler
3537 # being built; programs in there won't even run.
3538 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3539 # Search for pre-installed headers if nothing else fits.
3540 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3543 if test "x${use_gnu_ld}" = x &&
3544 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3545 # Arrange for us to find uninstalled linker scripts.
3546 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3549 # Search for other target-specific linker scripts and such.
3552 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3554 # The VxWorks support for shared libraries is getting in
3555 # incrementally. Make sure it doesn't get activated implicitly:
3557 if test "${enable_shared-unset}" = unset ; then
3559 # So the build of libraries knows ...
3560 target_configargs="${target_configargs} --disable-shared"
3562 host_configargs="${host_configargs} --disable-shared"
3567 # Makefile fragments.
3568 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3570 eval fragval=\$$frag
3571 if test $fragval != /dev/null; then
3572 eval $frag=${srcdir}/$fragval
3575 AC_SUBST_FILE(host_makefile_frag)
3576 AC_SUBST_FILE(target_makefile_frag)
3577 AC_SUBST_FILE(alphaieee_frag)
3578 AC_SUBST_FILE(ospace_frag)
3580 # Miscellanea: directories, flags, etc.
3581 AC_SUBST(RPATH_ENVVAR)
3582 AC_SUBST(GCC_SHLIB_SUBDIR)
3584 AC_SUBST(build_tooldir)
3585 AC_SUBST(CONFIGURE_GDB_TK)
3587 AC_SUBST(INSTALL_GDB_TK)
3589 # Build module lists & subconfigure args.
3590 AC_SUBST(build_configargs)
3591 AC_SUBST(build_configdirs)
3593 # Host module lists & subconfigure args.
3594 AC_SUBST(host_configargs)
3595 AC_SUBST(configdirs)
3596 AC_SUBST(target_configdirs)
3598 # Target module lists & subconfigure args.
3599 AC_SUBST(target_configargs)
3603 AC_SUBST(AR_FOR_BUILD)
3604 AC_SUBST(AS_FOR_BUILD)
3605 AC_SUBST(CC_FOR_BUILD)
3606 AC_SUBST(CFLAGS_FOR_BUILD)
3607 AC_SUBST(CPP_FOR_BUILD)
3608 AC_SUBST(CPPFLAGS_FOR_BUILD)
3609 AC_SUBST(CXXFLAGS_FOR_BUILD)
3610 AC_SUBST(CXX_FOR_BUILD)
3611 AC_SUBST(DLLTOOL_FOR_BUILD)
3612 AC_SUBST(DSYMUTIL_FOR_BUILD)
3613 AC_SUBST(GFORTRAN_FOR_BUILD)
3614 AC_SUBST(GOC_FOR_BUILD)
3615 AC_SUBST(GDC_FOR_BUILD)
3616 AC_SUBST(LDFLAGS_FOR_BUILD)
3617 AC_SUBST(LD_FOR_BUILD)
3618 AC_SUBST(NM_FOR_BUILD)
3619 AC_SUBST(RANLIB_FOR_BUILD)
3620 AC_SUBST(WINDMC_FOR_BUILD)
3621 AC_SUBST(WINDRES_FOR_BUILD)
3623 # Generate default definitions for YACC, M4, LEX and other programs that run
3624 # on the build machine. These are used if the Makefile can't locate these
3625 # programs in objdir.
3626 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3628 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3629 case " $build_configdirs " in
3630 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3633 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3634 case " $build_configdirs " in
3635 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3638 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3639 case " $build_configdirs " in
3640 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3643 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3644 case " $build_configdirs " in
3645 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3646 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3649 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3650 case " $build_configdirs " in
3651 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3654 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3655 case " $build_configdirs " in
3656 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3659 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3660 # higher, else we use the "missing" dummy.
3661 if ${MAKEINFO} --version \
3662 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3665 MAKEINFO="$MISSING makeinfo"
3671 # FIXME: expect and dejagnu may become build tools?
3673 AC_CHECK_PROGS(EXPECT, expect, expect)
3674 case " $configdirs " in
3676 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3680 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3681 case " $configdirs " in
3683 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3689 NCN_STRICT_CHECK_TOOLS(AR, ar)
3690 NCN_STRICT_CHECK_TOOLS(AS, as)
3691 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3692 NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
3693 NCN_STRICT_CHECK_TOOLS(LD, ld)
3694 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3695 NCN_STRICT_CHECK_TOOLS(NM, nm)
3696 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3697 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3698 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3699 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3700 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3701 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3702 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3703 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3710 GDCFLAGS=${GDCFLAGS-${CFLAGS}}
3711 AC_SUBST(PKG_CONFIG_PATH)
3713 GCC_PLUGIN_OPTION(PLUGIN_OPTION)
3715 RANLIB_PLUGIN_OPTION=
3716 if test -n "$PLUGIN_OPTION"; then
3717 if $AR --help 2>&1 | grep -q "\--plugin"; then
3718 AR_PLUGIN_OPTION="$PLUGIN_OPTION"
3720 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
3721 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
3724 AC_SUBST(AR_PLUGIN_OPTION)
3725 AC_SUBST(RANLIB_PLUGIN_OPTION)
3728 AC_ARG_WITH([build-time-tools],
3729 [AS_HELP_STRING([--with-build-time-tools=PATH],
3730 [use given path to find target tools during the build])],
3731 [case x"$withval" in
3734 with_build_time_tools=
3735 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3738 [with_build_time_tools=])
3740 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3741 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3742 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3743 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3744 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3745 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3746 NCN_STRICT_CHECK_TARGET_TOOLS(GM2_FOR_TARGET, gm2)
3748 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3749 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3750 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3751 ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
3752 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3753 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3754 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3755 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3756 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3757 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3758 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3759 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3760 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3761 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3762 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3764 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3766 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3767 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3768 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3769 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3770 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3771 [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],
3773 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3774 [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],
3776 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3777 GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
3778 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3779 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3780 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3781 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3782 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3783 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3784 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3785 GCC_TARGET_TOOL(gm2, GM2_FOR_TARGET, GM2,
3786 [gcc/gm2 -B$$r/$(HOST_SUBDIR)/gcc/], m2)
3787 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3788 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3789 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3790 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3791 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3792 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3793 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3794 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3795 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3796 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3797 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3799 AC_SUBST(FLAGS_FOR_TARGET)
3800 AC_SUBST(RAW_CXX_FOR_TARGET)
3802 # Certain tools may need extra flags.
3803 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3804 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3805 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3807 # When building target libraries, except in a Canadian cross, we use
3808 # the same toolchain as the compiler we just built.
3809 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3810 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3811 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3812 if test $host = $build; then
3813 case " $configdirs " in
3815 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3816 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3817 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3822 AC_SUBST(COMPILER_AS_FOR_TARGET)
3823 AC_SUBST(COMPILER_LD_FOR_TARGET)
3824 AC_SUBST(COMPILER_NM_FOR_TARGET)
3826 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3827 AC_ARG_ENABLE(maintainer-mode,
3828 [AS_HELP_STRING([--enable-maintainer-mode],
3829 [enable make rules and dependencies not useful
3830 (and sometimes confusing) to the casual installer])],
3831 USE_MAINTAINER_MODE=$enableval,
3832 USE_MAINTAINER_MODE=no)
3833 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3834 AC_SUBST(MAINTAINER_MODE_TRUE)
3835 AC_SUBST(MAINTAINER_MODE_FALSE)
3836 if test "$USE_MAINTAINER_MODE" = yes; then
3837 MAINTAINER_MODE_TRUE=
3838 MAINTAINER_MODE_FALSE='#'
3840 MAINTAINER_MODE_TRUE='#'
3841 MAINTAINER_MODE_FALSE=
3843 MAINT=$MAINTAINER_MODE_TRUE
3846 # ---------------------
3847 # GCC bootstrap support
3848 # ---------------------
3850 # Stage specific cflags for build.
3855 yes) stage1_cflags="-g -Wa,-J" ;;
3856 *) stage1_cflags="-g -J" ;;
3860 AC_SUBST(stage1_cflags)
3862 # Enable --enable-checking in stage1 of the compiler.
3863 AC_ARG_ENABLE(stage1-checking,
3864 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3865 [choose additional checking for stage1 of the compiler])],
3866 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3867 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3868 # For --disable-checking or implicit --enable-checking=release, avoid
3869 # setting --enable-checking=gc in the default stage1 checking for LTO
3870 # bootstraps. See PR62077.
3871 case $BUILD_CONFIG in
3873 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3875 stage1_checking=--enable-checking=yes,types;;
3877 if test "x$enable_checking" = x && \
3878 test -d ${srcdir}/gcc && \
3879 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3880 stage1_checking=--enable-checking=yes,types,extra
3883 stage1_checking=--enable-checking=$enable_checking,types
3885 AC_SUBST(stage1_checking)
3887 # Enable -Werror in bootstrap stage2 and later.
3888 AC_ARG_ENABLE(werror,
3889 [AS_HELP_STRING([--enable-werror],
3890 [enable -Werror in bootstrap stage2 and later])],
3892 case ${enable_werror} in
3893 yes) stage2_werror_flag="--enable-werror-always" ;;
3894 *) stage2_werror_flag="" ;;
3898 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3899 case $BUILD_CONFIG in
3901 stage2_werror_flag="--enable-werror-always" ;;
3903 stage2_werror_flag="--enable-werror-always" ;;
3908 AC_SUBST(stage2_werror_flag)
3910 # Specify what files to not compare during bootstrap.
3912 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3913 compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/M2Version*"
3914 compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/SYSTEM*"
3915 compare_exclusions="$compare_exclusions | gcc/m2/gm2version*"
3917 hppa*64*-*-hpux*) ;;
3918 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
3920 AC_SUBST(compare_exclusions)
3922 AC_CONFIG_FILES([Makefile],
3923 [sed "$extrasub_build" Makefile |
3924 sed "$extrasub_host" |
3925 sed "$extrasub_target" > mf$$
3926 mv -f mf$$ Makefile],
3927 [extrasub_build="$extrasub_build"
3928 extrasub_host="$extrasub_host"
3929 extrasub_target="$extrasub_target"])