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])
36 AC_CONFIG_SRCDIR([move-if-change])
37 AC_DISABLE_OPTION_CHECKING
40 # if PWD already has a value, it is probably wrong.
41 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
43 # Export original configure arguments for use by sub-configures.
44 # Quote arguments with shell meta charatcers.
45 TOPLEVEL_CONFIGURE_ARGUMENTS=
46 set -- "$progname" "$@"
50 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
51 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
52 # if the argument is of the form -foo=baz, quote the baz part only
53 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
56 # Add the quoted argument to the list.
57 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
59 if test "$silent" = yes; then
60 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
62 # Remove the initial space we just introduced and, as these will be
63 # expanded by make, quote '$'.
64 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
65 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
67 # Find the build, host, and target systems.
68 ACX_NONCANONICAL_BUILD
70 ACX_NONCANONICAL_TARGET
72 dnl Autoconf 2.5x and later will set a default program prefix if
73 dnl --target was used, even if it was the same as --host. Disable
74 dnl that behavior. This must be done before AC_CANONICAL_TARGET
76 test "$host_noncanonical" = "$target_noncanonical" &&
77 test "$program_prefix$program_suffix$program_transform_name" = \
79 program_transform_name=s,y,y,
84 m4_pattern_allow([^AS_FOR_TARGET$])dnl
85 m4_pattern_allow([^AS_FOR_BUILD$])dnl
87 # Get 'install' or 'install-sh' and its variants.
94 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
96 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
98 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
99 INSTALL="${srcpwd}/install-sh -c"
102 # Set srcdir to "." if that's what it is.
103 # This is important for multilib support.
105 if test "${pwd}" = "${srcpwd}" ; then
113 ### To add a new directory to the tree, first choose whether it is a target
114 ### or a host dependent tool. Then put it into the appropriate list
115 ### (library or tools, host or target), doing a dependency sort.
117 # Subdirs will be configured in the order listed in build_configdirs,
118 # configdirs, or target_configdirs; see the serialization section below.
120 # Dependency sorting is only needed when *configuration* must be done in
121 # a particular order. In all cases a dependency should be specified in
122 # the Makefile, whether or not it's implicitly specified here.
124 # Double entries in build_configdirs, configdirs, or target_configdirs may
125 # cause circular dependencies and break everything horribly.
127 # these library is used by various programs built for the build
130 build_libs="build-libiberty build-libcpp"
132 # these tools are built for the build environment
133 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
135 # these libraries are used by various programs built for the host environment
137 host_libs="gettext libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf libsframe libgrust "
139 # these tools are built for the host environment
140 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
141 # know that we are building the simulator.
142 # binutils, gas and ld appear in that order because it makes sense to run
143 # "make check" in that particular order.
144 # If --enable-gold is used, "gold" may replace "ld".
145 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"
147 # these libraries are built for the target environment, and are built after
148 # the host libraries and the host tools (which may be a cross compiler)
149 # Note that libiberty is not a target library.
150 target_libraries="target-libgcc \
151 target-libbacktrace \
157 target-libstdc++-v3 \
158 target-libsanitizer \
172 # these tools are built using the target libraries, and are intended to
173 # run only in the target environment
175 # note: any program that *uses* libraries that are in the "target_libraries"
176 # list belongs in this list.
178 target_tools="target-rda"
180 ################################################################################
182 ## All tools belong in one of the four categories, and are assigned above
183 ## We assign ${configdirs} this way to remove all embedded newlines. This
184 ## is important because configure will choke if they ever get through.
185 ## ${configdirs} is directories we build using the host tools.
186 ## ${target_configdirs} is directories we build using the target tools.
187 configdirs=`echo ${host_libs} ${host_tools}`
188 target_configdirs=`echo ${target_libraries} ${target_tools}`
189 build_configdirs=`echo ${build_libs} ${build_tools}`
191 m4_divert_text([PARSE_ARGS],
194 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
195 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
196 m4_popdef([AS_MESSAGE_LOG_FD])dnl
199 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
202 ################################################################################
204 srcname="gnu development package"
206 # This gets set non-empty for some net releases of packages.
209 # Define is_cross_compiler to save on calls to 'test'.
211 if test x"${host}" = x"${target}" ; then
214 is_cross_compiler=yes
217 # Find the build and target subdir names.
219 # Be sure to cover against remnants of an in-tree build.
220 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
221 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
222 Use a pristine source tree when building in a separate tree])
225 # Skipdirs are removed silently.
227 # Noconfigdirs are removed loudly.
231 # Make sure we don't let GNU ld be added if we didn't want it.
232 if test x$with_gnu_ld = xno ; then
234 noconfigdirs="$noconfigdirs ld gold"
238 # Make sure we don't let GNU as be added if we didn't want it.
239 if test x$with_gnu_as = xno ; then
241 noconfigdirs="$noconfigdirs gas"
245 AC_ARG_WITH(system-zlib,
246 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
247 # Make sure we don't let ZLIB be added if we didn't want it.
248 if test x$with_system_zlib = xyes ; then
250 noconfigdirs="$noconfigdirs zlib"
253 # Don't compile the bundled readline/libreadline.a if --with-system-readline
255 if test x$with_system_readline = xyes ; then
256 noconfigdirs="$noconfigdirs readline"
260 [AS_HELP_STRING([--with-zstd], [Support zstd compressed debug sections (default=auto)])])
262 # some tools are so dependent upon X11 that if we're not building with X,
263 # it's not even worth trying to configure, much less build, that tool.
266 yes | "") ;; # the default value for this tree is that X11 is available
268 skipdirs="${skipdirs} tk itcl libgui"
269 # We won't be able to build gdbtk without X.
272 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
275 # Some are only suitable for cross toolchains.
276 # Remove these if host=target.
277 cross_only="target-libgloss target-newlib target-opcodes"
279 case $is_cross_compiler in
280 no) skipdirs="${skipdirs} ${cross_only}" ;;
283 # If both --with-headers and --with-libs are specified, default to
285 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
286 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
287 if test x"${with_newlib}" = x ; then
292 # Recognize --with-newlib/--without-newlib.
293 case ${with_newlib} in
294 no) skipdirs="${skipdirs} target-newlib" ;;
295 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
298 AC_ARG_ENABLE(as-accelerator-for,
299 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
300 [build as offload target compiler.
301 Specify offload host triple by ARG])])
303 AC_ARG_ENABLE(offload-targets,
304 [AS_HELP_STRING([--enable-offload-targets=LIST],
305 [enable offloading to devices from comma-separated LIST of
306 TARGET[=DIR]. Use optional path to find offload target compiler
309 if test x"$enable_offload_targets" = x; then
310 AC_MSG_ERROR([no offload targets specified])
312 ], [enable_offload_targets=])
314 AC_ARG_ENABLE(offload-defaulted,
315 [AS_HELP_STRING([--enable-offload-defaulted]
316 [If enabled, configured but not installed offload compilers and
317 libgomp plugins are silently ignored. Useful for distribution
318 compilers where those are in separate optional packages.])],
319 [enable_offload_defaulted=$enableval],
320 [enable_offload_defaulted=])
322 # Handle --enable-gold, --enable-ld.
323 # --disable-gold [--enable-ld]
324 # Build only ld. Default option.
325 # --enable-gold [--enable-ld]
326 # Build both gold and ld. Install gold as "ld.gold", install ld
327 # as "ld.bfd" and "ld".
328 # --enable-gold=default [--enable-ld]
329 # Build both gold and ld. Install gold as "ld.gold" and "ld",
330 # install ld as "ld.bfd".
331 # --enable-gold[=default] --disable-ld
332 # Build only gold, which is then installed as both "ld.gold" and "ld".
333 # --enable-gold --enable-ld=default
334 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
336 # In other words, ld is default
337 # --enable-gold=default --enable-ld=default
342 [AS_HELP_STRING([[--enable-gold[=ARG]]],
343 [build gold @<:@ARG={default,yes,no}@:>@])],
344 ENABLE_GOLD=$enableval,
346 case "${ENABLE_GOLD}" in
348 # Check for ELF target.
351 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
352 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
353 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
354 | *-*-solaris2* | *-*-nto* | *-*-nacl* | *-*-haiku*)
356 *-*-linux*aout* | *-*-linux*oldld*)
364 if test "$is_elf" = "yes"; then
365 # Check for target supported by gold.
367 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
368 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-* | loongarch*-*-*)
369 configdirs="$configdirs gold"
370 if test x${ENABLE_GOLD} = xdefault; then
381 AC_MSG_ERROR([invalid --enable-gold argument])
386 [AS_HELP_STRING([[--enable-ld[=ARG]]],
387 [build ld @<:@ARG={default,yes,no}@:>@])],
388 ENABLE_LD=$enableval,
391 case "${ENABLE_LD}" in
393 if test x${default_ld} != x; then
394 AC_MSG_ERROR([either gold or ld can be the default ld])
400 if test x${ENABLE_GOLD} != xyes; then
401 AC_MSG_WARN([neither ld nor gold are enabled])
403 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
406 AC_MSG_ERROR([invalid --enable-ld argument])
410 AC_ARG_ENABLE(gprofng,
411 [AS_HELP_STRING([[--disable-gprofng]], [do not build gprofng])],
412 enable_gprofng=$enableval,
414 if test "$enable_gprofng" = "yes"; then
418 x86_64-*-linux* | i?86-*-linux* | aarch64-*-linux* | riscv64-*-linux*)
419 configdirs="$configdirs gprofng"
426 # Decide the default method for compressing debug sections.
427 # Provide a configure time option to override our default.
428 AC_ARG_ENABLE(compressed_debug_sections,
429 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
430 [Enable compressed debug sections for gas, gold or ld by
433 if test x"$enable_compressed_debug_sections" = xyes; then
434 AC_MSG_ERROR([no program with compressed debug sections specified])
436 ], [enable_compressed_debug_sections=])
438 # Select default compression algorithm.
439 AC_ARG_ENABLE(default_compressed_debug_sections_algorithm,
440 [AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}],
441 [Default compression algorithm for --enable-compressed-debug-sections.])],
442 [], [default_compressed_debug_sections_algorithm=])
444 # Configure extra directories which are host specific
448 configdirs="$configdirs libtermcap" ;;
451 # A target can indicate whether a language isn't supported for some reason.
452 # Only spaces may be used in this macro; not newlines or tabs.
453 unsupported_languages=
455 # Remove more programs from consideration, based on the host or
456 # target this usually means that a port of the program doesn't
460 i[[3456789]]86-*-msdosdjgpp*)
461 noconfigdirs="$noconfigdirs tcl tk itcl"
465 # Default to --disable-year2038 until we can handle differences between
466 # projects that use gnulib (which understands year 2038) and projects that
468 AC_ARG_ENABLE(year2038,
469 AS_HELP_STRING([--enable-year2038],
470 [enable support for timestamps past the year 2038]),
471 ENABLE_YEAR2038=$enableval,
474 if test "${ENABLE_YEAR2038}" = "no" ; then
478 AC_ARG_ENABLE(libquadmath,
479 AS_HELP_STRING([--disable-libquadmath],
480 [do not build libquadmath directory]),
481 ENABLE_LIBQUADMATH=$enableval,
482 ENABLE_LIBQUADMATH=yes)
483 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
484 noconfigdirs="$noconfigdirs target-libquadmath"
488 AC_ARG_ENABLE(libquadmath-support,
489 AS_HELP_STRING([--disable-libquadmath-support],
490 [disable libquadmath support for Fortran]),
491 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
492 ENABLE_LIBQUADMATH_SUPPORT=yes)
493 enable_libquadmath_support=
494 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
495 enable_libquadmath_support=no
499 AC_ARG_ENABLE(libada,
500 [AS_HELP_STRING([--enable-libada], [build libada directory])],
501 ENABLE_LIBADA=$enableval,
503 if test "${ENABLE_LIBADA}" != "yes" ; then
504 noconfigdirs="$noconfigdirs gnattools"
507 AC_ARG_ENABLE(libgm2,
508 [AS_HELP_STRING([--enable-libgm2], [build libgm2 directory])],
509 ENABLE_LIBGM2=$enableval,
511 if test "${ENABLE_LIBGM2}" != "yes" ; then
512 noconfigdirs="$noconfigdirs gm2tools"
515 AC_ARG_ENABLE(libssp,
516 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
517 ENABLE_LIBSSP=$enableval,
520 AC_ARG_ENABLE(libstdcxx,
521 AS_HELP_STRING([--disable-libstdcxx],
522 [do not build libstdc++-v3 directory]),
523 ENABLE_LIBSTDCXX=$enableval,
524 ENABLE_LIBSTDCXX=default)
525 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
526 noconfigdirs="$noconfigdirs target-libstdc++-v3"
529 # Enable libgomp by default on hosted POSIX systems, and a few others.
530 if test x$enable_libgomp = x ; then
532 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
534 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
536 *-*-solaris2* | *-*-hpux11*)
538 *-*-darwin* | *-*-aix*)
540 nvptx*-*-* | amdgcn*-*-*)
543 noconfigdirs="$noconfigdirs target-libgomp"
548 # Disable libatomic on unsupported systems.
549 if test -d ${srcdir}/libatomic; then
550 if test x$enable_libatomic = x; then
551 AC_MSG_CHECKING([for libatomic support])
552 if (srcdir=${srcdir}/libatomic; \
553 . ${srcdir}/configure.tgt; \
554 test -n "$UNSUPPORTED")
557 noconfigdirs="$noconfigdirs target-libatomic"
564 # Disable libitm on unsupported systems.
565 if test -d ${srcdir}/libitm; then
566 if test x$enable_libitm = x; then
567 AC_MSG_CHECKING([for libitm support])
568 if (srcdir=${srcdir}/libitm; \
569 . ${srcdir}/configure.tgt; \
570 test -n "$UNSUPPORTED")
573 noconfigdirs="$noconfigdirs target-libitm"
580 # Disable libsanitizer on unsupported systems.
581 if test -d ${srcdir}/libsanitizer; then
582 if test x$enable_libsanitizer = x; then
583 AC_MSG_CHECKING([for libsanitizer support])
584 if (srcdir=${srcdir}/libsanitizer; \
585 . ${srcdir}/configure.tgt; \
586 test -n "$UNSUPPORTED")
589 noconfigdirs="$noconfigdirs target-libsanitizer"
596 # Disable libvtv on unsupported systems.
597 if test -d ${srcdir}/libvtv; then
598 if test x$enable_libvtv = x; then
599 AC_MSG_CHECKING([for libvtv support])
600 if (srcdir=${srcdir}/libvtv; \
601 . ${srcdir}/configure.tgt; \
602 test "$VTV_SUPPORTED" != "yes")
605 noconfigdirs="$noconfigdirs target-libvtv"
612 # Disable libquadmath for some systems.
615 noconfigdirs="$noconfigdirs target-libquadmath"
617 # libquadmath is unused on AIX and libquadmath build process use of
618 # LD_LIBRARY_PATH can break AIX bootstrap.
619 powerpc-*-aix* | rs6000-*-aix*)
620 noconfigdirs="$noconfigdirs target-libquadmath"
624 # Disable libssp for some systems.
627 # No hosted I/O support.
628 noconfigdirs="$noconfigdirs target-libssp"
631 noconfigdirs="$noconfigdirs target-libssp"
633 powerpc-*-aix* | rs6000-*-aix*)
634 noconfigdirs="$noconfigdirs target-libssp"
637 # No hosted I/O support.
638 noconfigdirs="$noconfigdirs target-libssp"
641 # libssp uses a misaligned load to trigger a fault, but the RL78
642 # doesn't fault for those - instead, it gives a build-time error
643 # for explicit misaligned loads.
644 noconfigdirs="$noconfigdirs target-libssp"
647 # No hosted I/O support.
648 noconfigdirs="$noconfigdirs target-libssp"
652 # Disable libstdc++-v3 for some systems.
653 # Allow user to override this if they pass --enable-libstdcxx
654 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
657 # VxWorks uses the Dinkumware C++ library.
658 noconfigdirs="$noconfigdirs target-libstdc++-v3"
661 # Not ported/fails to build when using newlib.
662 noconfigdirs="$noconfigdirs target-libstdc++-v3"
665 # the C++ libraries don't build on top of CE's C libraries
666 noconfigdirs="$noconfigdirs target-libstdc++-v3"
669 noconfigdirs="$noconfigdirs target-libstdc++-v3"
672 noconfigdirs="$noconfigdirs target-libstdc++-v3"
675 noconfigdirs="$noconfigdirs target-libstdc++-v3"
680 # Disable C++ on systems where it is known to not work.
681 # For testing, you can override this with --enable-languages=c++.
682 case ,${enable_languages}, in
688 unsupported_languages="$unsupported_languages c++"
694 # Disable Objc on systems where it is known to not work.
695 # For testing, you can override this with --enable-languages=objc.
696 case ,${enable_languages}, in
702 unsupported_languages="$unsupported_languages objc"
708 # Disable D on systems where it is known to not work.
709 # For testing, you can override this with --enable-languages=d.
710 case ,${enable_languages}, in
716 unsupported_languages="$unsupported_languages d"
722 # Disable libphobos on unsupported systems.
723 # For testing, you can override this with --enable-libphobos.
724 if test -d ${srcdir}/libphobos; then
725 if test x$enable_libphobos = x; then
726 AC_MSG_CHECKING([for libphobos support])
727 if (srcdir=${srcdir}/libphobos; \
728 . ${srcdir}/configure.tgt; \
729 test "$LIBPHOBOS_SUPPORTED" != "yes")
732 noconfigdirs="$noconfigdirs target-libphobos"
739 # Disable Fortran for some systems.
742 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
743 unsupported_languages="$unsupported_languages fortran"
746 unsupported_languages="$unsupported_languages fortran"
750 # Disable libffi for some systems.
754 i[[3456789]]86-*-darwin*)
756 x86_64-*-darwin[[912]]*)
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"
795 noconfigdirs="$noconfigdirs target-libffi"
797 cris-*-* | crisv32-*-*)
801 *) # See PR46792 regarding target-libffi.
802 noconfigdirs="$noconfigdirs target-libffi";;
806 noconfigdirs="$noconfigdirs target-libffi"
811 noconfigdirs="$noconfigdirs target-libffi"
814 noconfigdirs="$noconfigdirs target-libffi"
816 i[[3456789]]86-w64-mingw*)
817 noconfigdirs="$noconfigdirs target-libffi"
819 i[[3456789]]86-*-mingw*)
820 noconfigdirs="$noconfigdirs target-libffi"
823 noconfigdirs="$noconfigdirs target-libffi"
826 noconfigdirs="$noconfigdirs target-libffi"
833 noconfigdirs="$noconfigdirs target-libffi"
836 noconfigdirs="$noconfigdirs target-libffi"
840 # Disable the go frontend on systems where it is known to not work. Please keep
841 # this in sync with contrib/config-list.mk.
843 *-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
844 unsupported_languages="$unsupported_languages go"
848 # Only allow gdbserver on some systems.
849 if test -d ${srcdir}/gdbserver; then
850 if test x$enable_gdbserver = x; then
851 AC_MSG_CHECKING([for gdbserver support])
852 if (srcdir=${srcdir}/gdbserver; \
853 . ${srcdir}/configure.srv; \
854 test -n "$UNSUPPORTED")
857 noconfigdirs="$noconfigdirs gdbserver"
864 # Disable libgo for some systems where it is known to not work.
865 # For testing, you can easily override this with --enable-libgo.
866 if test x$enable_libgo = x; then
870 noconfigdirs="$noconfigdirs target-libgo"
872 *-*-cygwin* | *-*-mingw*)
873 noconfigdirs="$noconfigdirs target-libgo"
876 noconfigdirs="$noconfigdirs target-libgo"
881 # Default libgloss CPU subdirectory.
882 libgloss_dir="$target_cpu"
885 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
894 cris-*-* | crisv32-*-*)
913 libgloss_dir=loongarch
915 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
935 # Disable newlib and libgloss for various target OSes.
938 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
940 i[[3456789]]86-*-linux*)
941 # This section makes it possible to build newlib natively on linux.
942 # If we are using a cross compiler then don't configure newlib.
943 if test x${is_cross_compiler} != xno ; then
944 noconfigdirs="$noconfigdirs target-newlib"
946 noconfigdirs="$noconfigdirs target-libgloss"
947 # If we are not using a cross compiler, do configure newlib.
948 # Note however, that newlib will only be configured in this situation
949 # if the --with-newlib option has been given, because otherwise
950 # 'target-newlib' will appear in skipdirs.
952 i[[3456789]]86-*-rdos*)
953 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
955 sh*-*-pe|mips*-*-pe|arm-wince-pe)
956 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
959 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
962 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
965 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
968 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
971 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
974 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
977 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
979 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
980 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
983 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
986 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
989 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
992 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
995 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
998 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1001 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1005 # The ARM simulator has been deprecated for all ARM targets.
1008 noconfigdirs="$noconfigdirs sim"
1016 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1017 noconfigdirs="$noconfigdirs sim target-rda"
1022 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1023 noconfigdirs="$noconfigdirs target-rda"
1026 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1027 noconfigdirs="$noconfigdirs sim target-rda"
1029 i[[3456789]]86-*-darwin*)
1030 noconfigdirs="$noconfigdirs ld gprof"
1031 noconfigdirs="$noconfigdirs sim target-rda"
1033 x86_64-*-darwin[[912]]*)
1034 noconfigdirs="$noconfigdirs ld gas gprof"
1035 noconfigdirs="$noconfigdirs sim target-rda"
1038 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1039 noconfigdirs="$noconfigdirs sim target-rda"
1044 if test "x$with_gmp" = x \
1045 && ! test -d ${srcdir}/gmp \
1046 && test -f /usr/local/include/gmp.h; then
1051 # Remove unsupported stuff on all kaOS configurations.
1052 noconfigdirs="$noconfigdirs target-libgloss"
1059 noconfigdirs="$noconfigdirs target-libgloss"
1062 noconfigdirs="$noconfigdirs target-libgloss"
1064 # The tpf target doesn't support gdb yet.
1066 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
1069 noconfigdirs="$noconfigdirs target-rda"
1074 # ld works, but does not support shared libraries.
1075 # gas doesn't generate exception information.
1076 noconfigdirs="$noconfigdirs gas ld"
1079 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1082 # newlib is not 64 bit ready
1083 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1086 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1088 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1089 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1092 noconfigdirs="$noconfigdirs sim"
1095 noconfigdirs="$noconfigdirs target-libgloss"
1098 noconfigdirs="$noconfigdirs ld target-libgloss"
1101 if test x${with_avrlibc} != xno; then
1102 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1105 c4x-*-* | tic4x-*-*)
1106 noconfigdirs="$noconfigdirs target-libgloss"
1109 noconfigdirs="$noconfigdirs target-libgloss gdb"
1112 noconfigdirs="$noconfigdirs target-libgloss"
1115 noconfigdirs="$noconfigdirs gdb"
1118 noconfigdirs="$noconfigdirs gdb"
1121 noconfigdirs="$noconfigdirs target-rda gprof"
1124 noconfigdirs="$noconfigdirs"
1127 noconfigdirs="$noconfigdirs target-libgloss"
1130 noconfigdirs="$noconfigdirs target-libgloss"
1132 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1135 noconfigdirs="$noconfigdirs gdb"
1138 noconfigdirs="$noconfigdirs gdb ld"
1146 hppa*-*-openbsd* | \
1152 noconfigdirs="$noconfigdirs ld"
1155 noconfigdirs="$noconfigdirs gdb"
1158 # No gdb support yet.
1159 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1162 # No ld support yet.
1163 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1166 # No ld support yet.
1167 noconfigdirs="$noconfigdirs libgui itcl ld"
1169 i[[3456789]]86-w64-mingw*)
1171 i[[3456789]]86-*-mingw*)
1172 target_configdirs="$target_configdirs target-winsup"
1175 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1176 noconfigdirs="$noconfigdirs target-libgloss"
1177 # always build newlib if winsup directory is present.
1178 if test -d "$srcdir/winsup/cygwin"; then
1179 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1180 elif test -d "$srcdir/newlib"; then
1181 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1184 i[[3456789]]86-*-pe)
1185 noconfigdirs="$noconfigdirs target-libgloss"
1187 i[[3456789]]86-*-sco3.2v5*)
1188 # The linker does not yet know about weak symbols in COFF,
1189 # and is not configured to handle mixed ELF and COFF.
1190 noconfigdirs="$noconfigdirs ld target-libgloss"
1192 i[[3456789]]86-*-sco*)
1193 noconfigdirs="$noconfigdirs gprof target-libgloss"
1195 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1196 noconfigdirs="$noconfigdirs target-libgloss"
1198 i[[3456789]]86-*-sysv4*)
1199 noconfigdirs="$noconfigdirs target-libgloss"
1201 i[[3456789]]86-*-beos*)
1202 noconfigdirs="$noconfigdirs gdb"
1204 i[[3456789]]86-*-rdos*)
1205 noconfigdirs="$noconfigdirs gdb"
1208 noconfigdirs="$noconfigdirs gdb gdbserver sim"
1211 noconfigdirs="$noconfigdirs gdb"
1214 noconfigdirs="$noconfigdirs sim"
1217 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1218 noconfigdirs="$noconfigdirs $target_libraries"
1221 noconfigdirs="$noconfigdirs gdb gprof"
1224 # copied from rs6000-*-* entry
1225 noconfigdirs="$noconfigdirs gprof"
1227 powerpc*-*-winnt* | powerpc*-*-pe*)
1228 target_configdirs="$target_configdirs target-winsup"
1229 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1230 # always build newlib.
1231 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1233 # This is temporary until we can link against shared libraries
1234 powerpcle-*-solaris*)
1235 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1238 noconfigdirs="$noconfigdirs gdb"
1241 noconfigdirs="$noconfigdirs gprof"
1244 noconfigdirs="$noconfigdirs gprof"
1247 noconfigdirs="$noconfigdirs gprof"
1250 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1253 noconfigdirs="$noconfigdirs gprof"
1255 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1256 if test x$with_newlib = xyes; then
1257 noconfigdirs="$noconfigdirs gprof"
1261 noconfigdirs="$noconfigdirs gprof target-libgloss"
1264 noconfigdirs="$noconfigdirs gprof target-libgloss"
1267 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1271 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1272 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1273 noconfigdirs="$noconfigdirs ld gas gprof"
1276 noconfigdirs="$noconfigdirs gprof"
1279 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1286 noconfigdirs="$noconfigdirs target-libgloss" ;;
1290 if test x${is_cross_compiler} = xno ; then
1295 noconfigdirs="$noconfigdirs sim"
1297 tilepro*-*-* | tilegx*-*-*)
1298 noconfigdirs="$noconfigdirs sim"
1301 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1304 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1307 noconfigdirs="$noconfigdirs ld"
1309 loongarch*-*-linux*)
1312 noconfigdirs="$noconfigdirs gprof"
1316 # If we aren't building newlib, then don't build libgloss, since libgloss
1317 # depends upon some newlib header files.
1318 case "${noconfigdirs}" in
1319 *target-libgloss*) ;;
1320 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1323 # Work in distributions that contain no compiler tools, like Autoconf.
1324 host_makefile_frag=/dev/null
1325 if test -d ${srcdir}/config ; then
1327 i[[3456789]]86-*-msdosdjgpp*)
1328 host_makefile_frag="config/mh-djgpp"
1331 ACX_CHECK_CYGWIN_CAT_WORKS
1332 host_makefile_frag="config/mh-cygwin"
1335 host_makefile_frag="config/mh-mingw"
1338 host_makefile_frag="config/mh-alpha-linux"
1341 host_makefile_frag="config/mh-pa"
1344 host_makefile_frag="config/mh-pa"
1346 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
1347 host_makefile_frag="config/mh-darwin"
1350 host_makefile_frag="config/mh-ppc-aix"
1353 host_makefile_frag="config/mh-ppc-aix"
1358 if test "${build}" != "${host}" ; then
1359 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1360 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1361 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1362 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
1363 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1364 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
1365 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1366 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1367 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1368 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1369 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1370 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1371 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1372 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1373 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1375 AR_FOR_BUILD="\$(AR)"
1376 AS_FOR_BUILD="\$(AS)"
1377 CC_FOR_BUILD="\$(CC)"
1378 CXX_FOR_BUILD="\$(CXX)"
1379 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
1380 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1381 GOC_FOR_BUILD="\$(GOC)"
1382 GDC_FOR_BUILD="\$(GDC)"
1383 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1384 LD_FOR_BUILD="\$(LD)"
1385 NM_FOR_BUILD="\$(NM)"
1386 RANLIB_FOR_BUILD="\$(RANLIB)"
1387 WINDRES_FOR_BUILD="\$(WINDRES)"
1388 WINDMC_FOR_BUILD="\$(WINDMC)"
1394 # We must set the default linker to the linker used by gcc for the correct
1395 # operation of libtool. If LD is not defined and we are using gcc, try to
1396 # set the LD default to the ld used by gcc.
1397 if test -z "$LD"; then
1398 if test "$GCC" = yes; then
1401 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1403 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1405 case $gcc_prog_ld in
1406 # Accept absolute paths.
1407 [[\\/]* | [A-Za-z]:[\\/]*)]
1408 LD="$gcc_prog_ld" ;;
1413 # Check whether -static-libstdc++ -static-libgcc is supported.
1415 if test "$GCC" = yes; then
1416 saved_LDFLAGS="$LDFLAGS"
1418 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1419 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1421 AC_LINK_IFELSE([AC_LANG_SOURCE([
1422 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1423 #error -static-libstdc++ not implemented
1426 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1427 [AC_MSG_RESULT([no])])
1430 LDFLAGS="$saved_LDFLAGS"
1435 ACX_PROG_CMP_IGNORE_INITIAL
1437 AC_ARG_ENABLE([bootstrap],
1438 [AS_HELP_STRING([--enable-bootstrap],
1439 [enable bootstrapping @<:@yes if native build@:>@])],,
1440 enable_bootstrap=default)
1442 # Issue errors and warnings for invalid/strange bootstrap combinations.
1443 if test -r $srcdir/gcc/configure; then
1449 case "$have_compiler:$host:$target:$enable_bootstrap" in
1452 # Default behavior. Enable bootstrap if we have a compiler
1453 # and we are in a native configuration.
1454 yes:$build:$build:default)
1455 enable_bootstrap=yes ;;
1458 enable_bootstrap=no ;;
1460 # We have a compiler and we are in a native configuration, bootstrap is ok
1461 yes:$build:$build:yes)
1464 # Other configurations, but we have a compiler. Assume the user knows
1467 AC_MSG_WARN([trying to bootstrap a cross compiler])
1470 # No compiler: if they passed --enable-bootstrap explicitly, fail
1472 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1474 # Fail if wrong command line
1476 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1480 # When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
1481 # C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1482 # require C++11 (or higher).
1483 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1484 CXX="$CXX -std=c++11"
1485 elif test "$have_compiler" = yes; then
1486 AX_CXX_COMPILE_STDCXX(11)
1488 if test "${build}" != "${host}"; then
1489 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1493 AC_ARG_ENABLE([pgo-build],
1494 [AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1495 [enable the PGO build])],
1496 [enable_pgo_build=$enableval],
1497 [enable_pgo_build=no])
1499 # Issue errors and warnings for invalid/strange PGO build combinations.
1500 case "$have_compiler:$host:$target:$enable_pgo_build" in
1503 # Allow the PGO build only if we aren't building a compiler and
1504 # we are in a native configuration.
1505 no:$build:$build:yes | no:$build:$build:lto) ;;
1507 # Disallow the PGO bootstrap if we are building a compiler.
1508 yes:*:*:yes | yes:*:*:lto)
1509 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1512 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1516 if test "$enable_pgo_build" != "no"; then
1517 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1518 old_CFLAGS="$CFLAGS"
1519 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1520 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1521 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1522 [PGO_BUILD_GEN_CFLAGS=])
1523 CFLAGS="$old_CFLAGS"
1524 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1525 AC_MSG_RESULT([yes])
1526 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1529 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1532 if test "$enable_pgo_build" = "lto"; then
1533 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1534 old_CFLAGS="$CFLAGS"
1535 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1536 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1537 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1538 [PGO_BUILD_LTO_CFLAGS=])
1539 CFLAGS="$old_CFLAGS"
1540 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1541 AC_MSG_RESULT([yes])
1544 AC_MSG_WARN([LTO is disabled for the PGO build])
1548 AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1549 AC_SUBST(PGO_BUILD_USE_CFLAGS)
1550 AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1552 # Used for setting $lt_cv_objdir
1555 # Check for GMP, MPFR and MPC
1558 if test -d ${srcdir}/gcc ; then
1562 if test -d ${srcdir}/gdb ; then
1563 if test "x$enable_gdb" != xno; then
1568 gmplibs="-lmpfr -lgmp"
1569 if test x"$require_mpc" = "xyes" ; then
1570 gmplibs="-lmpc $gmplibs"
1575 # Specify a location for mpc
1576 # check for this first so it ends up on the link line before mpfr.
1578 [AS_HELP_STRING([--with-mpc=PATH],
1579 [specify prefix directory for installed MPC package.
1580 Equivalent to --with-mpc-include=PATH/include
1581 plus --with-mpc-lib=PATH/lib])])
1582 AC_ARG_WITH(mpc-include,
1583 [AS_HELP_STRING([--with-mpc-include=PATH],
1584 [specify directory for installed MPC include files])])
1585 AC_ARG_WITH(mpc-lib,
1586 [AS_HELP_STRING([--with-mpc-lib=PATH],
1587 [specify directory for the installed MPC library])])
1589 if test "x$with_mpc" != x; then
1590 gmplibs="-L$with_mpc/lib $gmplibs"
1591 gmpinc="-I$with_mpc/include $gmpinc"
1593 if test "x$with_mpc_include" != x; then
1594 gmpinc="-I$with_mpc_include $gmpinc"
1596 if test "x$with_mpc_lib" != x; then
1597 gmplibs="-L$with_mpc_lib $gmplibs"
1599 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1600 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1601 gmpinc='-I$$s/mpc/src '"$gmpinc"
1602 # Do not test the mpc version. Assume that it is sufficient, since
1603 # it is in the source tree, and the library has not been built yet
1604 # but it would be included on the link line in the version check below
1605 # hence making the test fail.
1609 # Specify a location for mpfr
1610 # check for this first so it ends up on the link line before gmp.
1612 [AS_HELP_STRING([--with-mpfr=PATH],
1613 [specify prefix directory for installed MPFR package.
1614 Equivalent to --with-mpfr-include=PATH/include
1615 plus --with-mpfr-lib=PATH/lib])])
1616 AC_ARG_WITH(mpfr-include,
1617 [AS_HELP_STRING([--with-mpfr-include=PATH],
1618 [specify directory for installed MPFR include files])])
1619 AC_ARG_WITH(mpfr-lib,
1620 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1621 [specify directory for the installed MPFR library])])
1623 if test "x$with_mpfr" != x; then
1624 gmplibs="-L$with_mpfr/lib $gmplibs"
1625 gmpinc="-I$with_mpfr/include $gmpinc"
1627 if test "x$with_mpfr_include" != x; then
1628 gmpinc="-I$with_mpfr_include $gmpinc"
1630 if test "x$with_mpfr_lib" != x; then
1631 gmplibs="-L$with_mpfr_lib $gmplibs"
1633 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1634 # MPFR v3.1.0 moved the sources into a src sub-directory.
1635 if ! test -d ${srcdir}/mpfr/src; then
1637 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1639 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1640 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1641 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1642 # Do not test the mpfr version. Assume that it is sufficient, since
1643 # it is in the source tree, and the library has not been built yet
1644 # but it would be included on the link line in the version check below
1645 # hence making the test fail.
1649 # Specify a location for gmp
1651 [AS_HELP_STRING([--with-gmp=PATH],
1652 [specify prefix directory for the installed GMP package.
1653 Equivalent to --with-gmp-include=PATH/include
1654 plus --with-gmp-lib=PATH/lib])])
1655 AC_ARG_WITH(gmp-include,
1656 [AS_HELP_STRING([--with-gmp-include=PATH],
1657 [specify directory for installed GMP include files])])
1658 AC_ARG_WITH(gmp-lib,
1659 [AS_HELP_STRING([--with-gmp-lib=PATH],
1660 [specify directory for the installed GMP library])])
1663 if test "x$with_gmp" != x; then
1664 gmplibs="-L$with_gmp/lib $gmplibs"
1665 gmpinc="-I$with_gmp/include $gmpinc"
1667 if test "x$with_gmp_include" != x; then
1668 gmpinc="-I$with_gmp_include $gmpinc"
1670 if test "x$with_gmp_lib" != x; then
1671 gmplibs="-L$with_gmp_lib $gmplibs"
1673 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1674 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1675 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1676 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1677 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1678 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1679 # Do not test the gmp version. Assume that it is sufficient, since
1680 # it is in the source tree, and the library has not been built yet
1681 # but it would be included on the link line in the version check below
1682 # hence making the test fail.
1686 if test "x$require_gmp" = xyes && test "x$have_gmp" = xno; then
1688 saved_CFLAGS="$CFLAGS"
1689 CFLAGS="$CFLAGS $gmpinc"
1690 # Check for the recommended and required versions of GMP.
1691 AC_MSG_CHECKING([for the correct version of gmp.h])
1692 AC_TRY_COMPILE([#include "gmp.h"],[
1693 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1694 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1695 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1698 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1699 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1700 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1701 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1704 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1705 [AC_MSG_RESULT([no]); have_gmp=no])
1707 # If we have GMP, check the MPFR version.
1708 if test x"$have_gmp" = xyes; then
1709 # Check for the recommended and required versions of MPFR.
1710 AC_MSG_CHECKING([for the correct version of mpfr.h])
1711 AC_TRY_COMPILE([#include <gmp.h>
1712 #include <mpfr.h>],[
1713 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
1716 ], [AC_TRY_COMPILE([#include <gmp.h>
1717 #include <mpfr.h>],[
1718 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
1721 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1722 [AC_MSG_RESULT([no]); have_gmp=no])
1725 # Check for the MPC header version.
1726 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes ; then
1727 # Check for the recommended and required versions of MPC.
1728 AC_MSG_CHECKING([for the correct version of mpc.h])
1729 AC_TRY_COMPILE([#include <mpc.h>],[
1730 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1733 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1734 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1737 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1738 [AC_MSG_RESULT([no]); have_gmp=no])
1741 # Now check the MPFR library.
1742 if test x"$have_gmp" = xyes; then
1744 LIBS="$LIBS $gmplibs"
1745 AC_MSG_CHECKING([for the correct version of the gmp/mpfr libraries])
1746 AC_TRY_LINK([#include <mpfr.h>],[
1752 mpfr_atan2 (n, n, x, MPFR_RNDN);
1753 mpfr_erfc (n, x, MPFR_RNDN);
1754 mpfr_subnormalize (x, t, MPFR_RNDN);
1757 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1761 # Now check the MPC library
1762 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes; then
1764 LIBS="$LIBS $gmplibs"
1765 AC_MSG_CHECKING([for the correct version of the mpc libraries])
1766 AC_TRY_LINK([#include <mpc.h>],[
1769 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1770 mpc_cosh (c, c, MPC_RNDNN);
1771 mpc_pow (c, c, c, MPC_RNDNN);
1772 mpc_acosh (c, c, MPC_RNDNN);
1774 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1778 CFLAGS="$saved_CFLAGS"
1780 # The library versions listed in the error message below should match
1781 # the HARD-minimums enforced above.
1782 if test x$have_gmp != xyes; then
1783 if test -d ${srcdir}/gcc ; then
1784 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
1785 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1786 their locations. Source code for these libraries can be found at
1787 their respective hosting sites as well as at
1788 https://gcc.gnu.org/pub/gcc/infrastructure/. See also
1789 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1790 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1791 make sure that you have installed both the libraries and the header
1792 files. They may be located in separate packages.])
1794 AC_MSG_ERROR([Building GDB requires GMP 4.2+, and MPFR 3.1.0+.
1795 Try the --with-gmp and/or --with-mpfr options to specify
1796 their locations. If you obtained GMP and/or MPFR from a vendor
1797 distribution package, make sure that you have installed both the libraries
1798 and the header files. They may be located in separate packages.])
1803 # Flags needed for both GMP, MPFR and/or MPC.
1806 AC_SUBST(extra_mpfr_configure_flags)
1807 AC_SUBST(extra_mpc_gmp_configure_flags)
1808 AC_SUBST(extra_mpc_mpfr_configure_flags)
1809 AC_SUBST(extra_isl_gmp_configure_flags)
1811 # Libraries to use for stage1 or when not bootstrapping.
1812 AC_ARG_WITH(stage1-libs,
1813 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1814 [if test "$withval" = "no" -o "$withval" = "yes"; then
1817 stage1_libs=$withval
1820 AC_SUBST(stage1_libs)
1822 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1823 # default is yes if gcc is being built; no otherwise. The reason for
1824 # this default is that gdb is sometimes linked against GNU Source
1825 # Highlight, which is a shared library that uses C++ exceptions. In
1826 # this case, -static-libstdc++ will cause crashes.
1827 AC_ARG_WITH(static-standard-libraries,
1828 [AS_HELP_STRING([--with-static-standard-libraries],
1829 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1830 [], [with_static_standard_libraries=auto])
1831 if test "$with_static_standard_libraries" = auto; then
1832 with_static_standard_libraries=$have_compiler
1835 # Linker flags to use for stage1 or when not bootstrapping.
1836 AC_ARG_WITH(stage1-ldflags,
1837 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1838 [if test "$withval" = "no" -o "$withval" = "yes"; then
1841 stage1_ldflags=$withval
1844 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1845 # if supported. But if the user explicitly specified the libraries to use,
1846 # trust that they are doing what they want.
1847 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1848 -a "$have_static_libs" = yes; then
1849 stage1_ldflags="-static-libstdc++ -static-libgcc"
1851 AC_SUBST(stage1_ldflags)
1853 # Libraries to use for stage2 and later builds.
1854 AC_ARG_WITH(boot-libs,
1855 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1856 [if test "$withval" = "no" -o "$withval" = "yes"; then
1859 poststage1_libs=$withval
1862 AC_SUBST(poststage1_libs)
1864 # Linker flags to use for stage2 and later builds.
1865 AC_ARG_WITH(boot-ldflags,
1866 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1867 [linker flags for stage2 and later])],
1868 [if test "$withval" = "no" -o "$withval" = "yes"; then
1871 poststage1_ldflags=$withval
1873 [poststage1_ldflags=
1874 # In stages 2 and 3, default to linking libstdc++ and libgcc
1875 # statically. But if the user explicitly specified the libraries to
1876 # use, trust that they are doing what they want.
1877 if test "$poststage1_libs" = ""; then
1878 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1881 *-darwin2* | *-darwin1[[56789]]*)
1882 # For these versions, we default to using embedded rpaths.
1883 if test "x$enable_darwin_at_rpath" != "xno"; then
1884 poststage1_ldflags="$poststage1_ldflags -nodefaultrpaths"
1888 # For these versions, we only use embedded rpaths on demand.
1889 if test "x$enable_darwin_at_rpath" = "xyes"; then
1890 poststage1_ldflags="$poststage1_ldflags -nodefaultrpaths"
1894 AC_SUBST(poststage1_ldflags)
1896 # GCC GRAPHITE dependency isl.
1897 # Basic setup is inlined here, actual checks are in config/isl.m4
1902 [Specify prefix directory for the installed isl package.
1903 Equivalent to --with-isl-include=PATH/include
1904 plus --with-isl-lib=PATH/lib])])
1906 # Treat --without-isl as a request to disable
1907 # GRAPHITE support and skip all following checks.
1908 if test "x$with_isl" != "xno"; then
1910 dnl Provide configure switches and initialize islinc & isllibs
1911 dnl with user input.
1913 dnl The versions of isl that work for Graphite
1915 dnl Only execute fail-action, if isl has been requested.
1917 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1920 # If the isl check failed, disable builds of in-tree variant of isl
1921 if test "x$with_isl" = xno ||
1922 test "x$gcc_cv_isl" = xno; then
1923 noconfigdirs="$noconfigdirs isl"
1930 # Check for LTO support.
1932 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1933 enable_lto=$enableval,
1934 enable_lto=yes; default_enable_lto=yes)
1936 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1937 build_lto_plugin=yes
1938 ],[if test x"$default_enable_lto" = x"yes" ; then
1940 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1941 # On other non-ELF platforms, LTO has yet to be validated.
1945 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1946 # It would also be nice to check the binutils support, but we don't
1947 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1948 # warn during gcc/ subconfigure; unless you're bootstrapping with
1949 # -flto it won't be needed until after installation anyway.
1951 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1952 *) if test x"$enable_lto" = x"yes"; then
1953 AC_MSG_ERROR([LTO support is not enabled for this target.])
1958 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1959 # Build it unless LTO was explicitly disabled.
1961 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1966 AC_ARG_ENABLE(linker-plugin-configure-flags,
1967 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1968 [additional flags for configuring linker plugins @<:@none@:>@])],
1969 extra_linker_plugin_configure_flags=$enableval,
1970 extra_linker_plugin_configure_flags=)
1971 AC_SUBST(extra_linker_plugin_configure_flags)
1972 AC_ARG_ENABLE(linker-plugin-flags,
1973 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1974 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1975 extra_linker_plugin_flags=$enableval,
1976 extra_linker_plugin_flags=)
1977 AC_SUBST(extra_linker_plugin_flags)
1979 # Handle --enable-host-pie
1980 # If host PIE executables are the default (or must be forced on) for some host,
1981 # we must pass that configuration to the gcc directory.
1983 AC_ARG_ENABLE(host-pie,
1984 [AS_HELP_STRING([--enable-host-pie],
1985 [build position independent host executables])],
1986 [host_pie=$enableval
1989 if test x$host_pie != xyes ; then
1990 # for Darwin20+ this is required.
1991 AC_MSG_WARN([PIE executables are required for the configured host, host-pie setting ignored.])
1993 gcc_host_pie=--enable-host-pie
1999 # Default to PIE (mandatory for aarch64).
2001 gcc_host_pie=--enable-host-pie
2007 AC_SUBST(gcc_host_pie)
2009 # Enable --enable-host-shared.
2010 # Checked early to determine whether jit is an 'all' language
2011 AC_ARG_ENABLE(host-shared,
2012 [AS_HELP_STRING([--enable-host-shared],
2013 [build host code as shared libraries])],
2014 [host_shared=$enableval
2016 x86_64-*-darwin* | aarch64-*-darwin*)
2017 if test x$host_shared != xyes ; then
2018 # PIC is the default, and actually cannot be switched off.
2019 AC_MSG_WARN([PIC code is required for the configured host; host-shared setting ignored.])
2023 if test x$host_pie = xyes -a x$host_shared != xyes ; then
2024 AC_MSG_WARN([PIC code is required for PIE host executables host-shared setting ignored.])
2030 # 64B x86_64 and Aarch64 Darwin default to PIC.
2031 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
2032 # 32B and powerpc64 Darwin must use PIC to link PIE exes.
2033 *-*-darwin*) host_shared=$host_pie ;;
2037 AC_SUBST(host_shared)
2039 if test x$host_shared = xyes; then
2042 # Since host shared is the default for 64b Darwin, and also enabled for
2043 # host_pie, ensure that we present the PIE flag when host_pie is active.
2044 if test x$host_pie = xyes; then
2052 elif test x$host_pie = xyes; then
2060 # If we are building PIC/PIE host executables, and we are building dependent
2061 # libs (e.g. GMP) in-tree those libs need to be configured to generate PIC
2064 if test "$host_shared" = "yes" -o "$host_pie" = "yes"; then
2065 host_libs_picflag='--with-pic'
2067 AC_SUBST(host_libs_picflag)
2069 # By default, C and C++ are the only stage 1 languages.
2070 stage1_languages=,c,
2072 # Target libraries that we bootstrap.
2073 bootstrap_target_libs=,target-libgcc,
2075 # Figure out what language subdirectories are present.
2076 # Look if the user specified --enable-languages="..."; if not, use
2077 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2079 # NB: embedded tabs in this IF block -- do not untabify
2080 if test -d ${srcdir}/gcc; then
2081 if test x"${enable_languages+set}" != xset; then
2082 if test x"${LANGUAGES+set}" = xset; then
2083 enable_languages="${LANGUAGES}"
2084 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
2086 enable_languages=default
2089 if test x"${enable_languages}" = x ||
2090 test x"${enable_languages}" = xyes;
2092 echo configure.ac: --enable-languages needs at least one language argument 1>&2
2096 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2098 # 'f95' is the old name for the 'fortran' language. We issue a warning
2099 # and make the substitution.
2100 case ,${enable_languages}, in
2102 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
2103 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
2107 # If bootstrapping, C++ must be enabled.
2108 case ",$enable_languages,:$enable_bootstrap" in
2111 if test -f ${srcdir}/gcc/cp/config-lang.in; then
2112 enable_languages="${enable_languages},c++"
2114 AC_MSG_ERROR([bootstrapping requires c++ sources])
2119 # First scan to see if an enabled language requires some other language.
2120 # We assume that a given config-lang.in will list all the language
2121 # front ends it requires, even if some are required indirectly.
2122 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2123 case ${lang_frag} in
2125 # The odd quoting in the next line works around
2126 # an apparent bug in bash 1.12 on linux.
2127 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2129 # From the config-lang.in, get $language, $lang_requires, and
2130 # $lang_requires_boot_languages.
2133 lang_requires_boot_languages=
2134 # set srcdir during sourcing lang_frag to the gcc dir.
2135 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
2136 # polutes this shell
2137 saved_srcdir=${srcdir}
2138 srcdir=${srcdir}/gcc . ${lang_frag}
2139 srcdir=${saved_srcdir}
2140 for other in ${lang_requires} ${lang_requires_boot_languages}; do
2141 case ,${enable_languages}, in
2146 echo " \`$other' language required by \`$language'; enabling" 1>&2
2147 enable_languages="${enable_languages},${other}"
2151 for other in ${lang_requires_boot_languages} ; do
2152 if test "$other" != "c"; then
2153 case ,${enable_stage1_languages}, in
2158 case ,${enable_languages}, in
2160 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
2161 enable_stage1_languages="$enable_stage1_languages,${other}"
2172 new_enable_languages=,c,
2174 # If LTO is enabled, add the LTO front end.
2175 if test "$enable_lto" = "yes" ; then
2176 case ,${enable_languages}, in
2178 *) enable_languages="${enable_languages},lto" ;;
2180 if test "${build_lto_plugin}" = "yes" ; then
2181 configdirs="$configdirs lto-plugin"
2185 # If we're building an offloading compiler, add the LTO front end.
2186 if test x"$enable_as_accelerator_for" != x ; then
2187 case ,${enable_languages}, in
2189 *) enable_languages="${enable_languages},lto" ;;
2193 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
2194 potential_languages=,c,
2196 enabled_target_libs=
2197 disabled_target_libs=
2199 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2200 case ${lang_frag} in
2202 # The odd quoting in the next line works around
2203 # an apparent bug in bash 1.12 on linux.
2204 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2206 # From the config-lang.in, get $language, $target_libs,
2207 # $lang_dirs, $boot_language, and $build_by_default
2213 build_by_default=yes
2214 # set srcdir during sourcing. See above about save & restore
2215 saved_srcdir=${srcdir}
2216 srcdir=${srcdir}/gcc . ${lang_frag}
2217 srcdir=${saved_srcdir}
2218 if test x${language} = x; then
2219 echo "${lang_frag} doesn't set \$language." 1>&2
2223 if test "$language" = "c++"; then
2228 # C is always enabled, so no need to add it again
2229 if test "$language" != "c"; then
2230 case ,${enable_languages}, in
2232 # Language was explicitly selected; include it
2236 # All languages are enabled
2240 # 'default' was selected, select it if it is a default language
2241 add_this_lang=${build_by_default}
2246 # Disable languages that need other directories if these aren't available.
2247 for i in $subdir_requires; do
2248 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2249 case ${add_this_lang} in
2251 # Specifically requested language; tell them.
2252 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2255 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2256 add_this_lang=unsupported
2260 add_this_lang=unsupported
2265 # Disable Ada if no preexisting GNAT is available.
2266 case ${add_this_lang}:${language}:${have_gnat} in
2268 # Specifically requested language; tell them.
2269 AC_MSG_ERROR([GNAT is required to build $language])
2272 AC_MSG_WARN([GNAT is required to build $language])
2273 add_this_lang=unsupported
2277 add_this_lang=unsupported
2281 # Disable D if no preexisting GDC is available.
2282 case ${add_this_lang}:${language}:${have_gdc} in
2284 # Specifically requested language; tell them.
2285 AC_MSG_ERROR([GDC is required to build $language])
2288 AC_MSG_WARN([GDC is required to build $language])
2289 add_this_lang=unsupported
2293 add_this_lang=unsupported
2297 # Disable jit if -enable-host-shared not specified
2298 # but not if building for Mingw. All code in Windows
2299 # is position independent code (PIC).
2303 case ${add_this_lang}:${language}:${host_shared} in
2305 # PR jit/64780: explicitly specify --enable-host-shared
2307 Enabling language "jit" requires --enable-host-shared.
2309 --enable-host-shared typically slows the rest of the compiler down by
2310 a few %, so you must explicitly enable it.
2312 If you want to build both the jit and the regular compiler, it is often
2313 best to do this via two separate configure/builds, in separate
2314 directories, to avoid imposing the performance cost of
2315 --enable-host-shared on the regular compiler.])
2318 AC_MSG_WARN([--enable-host-shared required to build $language])
2319 add_this_lang=unsupported
2323 add_this_lang=unsupported
2329 # Disable a language that is unsupported by the target.
2330 case "${add_this_lang}: $unsupported_languages " in
2334 AC_MSG_WARN([${language} not supported for this target])
2335 add_this_lang=unsupported
2339 case $add_this_lang in
2341 # Remove language-dependent dirs.
2342 disabled_target_libs="$disabled_target_libs $target_libs"
2343 noconfigdirs="$noconfigdirs $lang_dirs"
2346 # Remove language-dependent dirs; still show language as supported.
2347 disabled_target_libs="$disabled_target_libs $target_libs"
2348 noconfigdirs="$noconfigdirs $lang_dirs"
2349 potential_languages="${potential_languages}${language},"
2352 new_enable_languages="${new_enable_languages}${language},"
2353 potential_languages="${potential_languages}${language},"
2354 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2355 enabled_target_libs="$enabled_target_libs $target_libs"
2356 case "${boot_language}:,$enable_stage1_languages," in
2357 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2358 # Add to (comma-separated) list of stage 1 languages.
2359 case ",$stage1_languages," in
2360 *,$language,* | ,yes, | ,all,) ;;
2361 *) stage1_languages="${stage1_languages}${language}," ;;
2363 # We need to bootstrap any supporting libraries.
2364 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2373 # Add target libraries which are only needed for disabled languages
2375 if test -n "$disabled_target_libs"; then
2376 for dir in $disabled_target_libs; do
2377 case " $enabled_target_libs " in
2379 *) noconfigdirs="$noconfigdirs $dir" ;;
2384 AC_ARG_ENABLE(stage1-languages,
2385 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2386 [choose additional languages to build during
2387 stage1. Mostly useful for compiler development])],
2388 [case ,${enable_stage1_languages}, in
2390 # Set it to something that will have no effect in the loop below
2391 enable_stage1_languages=c ;;
2393 enable_stage1_languages=`echo $new_enable_languages | \
2394 sed -e "s/^,//" -e "s/,$//" ` ;;
2396 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2397 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2400 # Add "good" languages from enable_stage1_languages to stage1_languages,
2401 # while "bad" languages go in missing_languages. Leave no duplicates.
2402 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2403 case $potential_languages in
2405 case $stage1_languages in
2407 *) stage1_languages="$stage1_languages$i," ;;
2410 case $missing_languages in
2412 *) missing_languages="$missing_languages$i," ;;
2417 # Remove leading/trailing commas that were added for simplicity
2418 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2419 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2420 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2421 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2423 if test "x$missing_languages" != x; then
2425 The following requested languages could not be built: ${missing_languages}
2426 Supported languages are: ${potential_languages}])
2428 if test "x$new_enable_languages" != "x$enable_languages"; then
2429 echo The following languages will be built: ${new_enable_languages}
2430 enable_languages="$new_enable_languages"
2433 AC_SUBST(stage1_languages)
2434 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2437 # Handle --disable-<component> generically.
2438 for dir in $configdirs $build_configdirs $target_configdirs ; do
2439 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2440 varname=`echo $dirname | sed -e s/+/_/g`
2441 if eval test x\${enable_${varname}} "=" xno ; then
2442 noconfigdirs="$noconfigdirs $dir"
2446 # Check for Boehm's garbage collector
2447 AC_ARG_ENABLE(objc-gc,
2448 [AS_HELP_STRING([--enable-objc-gc],
2449 [enable use of Boehm's garbage collector with the
2450 GNU Objective-C runtime])])
2451 AC_ARG_WITH([target-bdw-gc],
2452 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2453 [specify prefix directory for installed bdw-gc package.
2454 Equivalent to --with-target-bdw-gc-include=PATH/include
2455 plus --with-target-bdw-gc-lib=PATH/lib])])
2456 AC_ARG_WITH([target-bdw-gc-include],
2457 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2458 [specify directories for installed bdw-gc include files])])
2459 AC_ARG_WITH([target-bdw-gc-lib],
2460 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2461 [specify directories for installed bdw-gc library])])
2463 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2464 AC_MSG_CHECKING([for bdw garbage collector])
2465 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2466 dnl no bdw-gw options, assume default locations
2467 AC_MSG_RESULT([using bdw-gc in default locations])
2469 dnl bdw-gw options, first error checking, complete checking in libobjc
2470 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2471 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2472 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2473 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2475 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2480 # Disable libitm, libsanitizer, libvtv if we're not building C++
2481 case ,${enable_languages}, in
2483 # Disable libitm, libsanitizer if we're not building libstdc++
2484 case "${noconfigdirs}" in
2485 *target-libstdc++-v3*)
2486 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2492 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer target-libvtv"
2496 case ,${enable_languages}, in
2498 case " ${noconfigdirs} " in
2499 *\ target-libstdc++-v3\ *)
2500 # Disable target libgrust if we're not building target libstdc++.
2501 noconfigdirs="$noconfigdirs target-libgrust"
2507 # If gcc/ is not in the source tree then we'll not be building a
2508 # target compiler, assume in that case we don't want to build any
2509 # target libraries or tools.
2511 # This was added primarily for the benefit for binutils-gdb who reuse
2512 # this configure script, but don't always have target tools available.
2513 if test ! -d ${srcdir}/gcc; then
2514 skipdirs="${skipdirs} ${target_configdirs}"
2517 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2518 # $build_configdirs and $target_configdirs.
2519 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2522 for dir in . $skipdirs $noconfigdirs ; do
2523 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2524 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2525 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2526 if test -r $srcdir/$dirname/configure ; then
2527 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2530 notsupp="$notsupp $dir"
2534 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2535 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2536 if test -r $srcdir/$dirname/configure ; then
2537 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2540 notsupp="$notsupp $dir"
2544 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2545 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2546 if test -r $srcdir/$dirname/configure ; then
2547 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2550 notsupp="$notsupp $dir"
2556 # Quietly strip out all directories which aren't configurable in this tree.
2557 # This relies on all configurable subdirectories being autoconfiscated, which
2559 build_configdirs_all="$build_configdirs"
2561 for i in ${build_configdirs_all} ; do
2562 j=`echo $i | sed -e s/build-//g`
2563 if test -f ${srcdir}/$j/configure ; then
2564 build_configdirs="${build_configdirs} $i"
2568 configdirs_all="$configdirs"
2570 for i in ${configdirs_all} ; do
2571 if test -f ${srcdir}/$i/configure ; then
2572 configdirs="${configdirs} $i"
2576 target_configdirs_all="$target_configdirs"
2578 for i in ${target_configdirs_all} ; do
2579 j=`echo $i | sed -e s/target-//g`
2580 if test -f ${srcdir}/$j/configure ; then
2581 target_configdirs="${target_configdirs} $i"
2585 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2586 # so we have to add it after the preceding checks.
2587 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2589 case " $configdirs " in
2591 # If we can build libiberty, we can also build libiberty-linker-plugin.
2592 configdirs="$configdirs libiberty-linker-plugin"
2593 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2594 --with-libiberty=../libiberty-linker-plugin";;
2596 AC_MSG_ERROR([libiberty missing]);;
2600 # Sometimes we have special requirements for the host libiberty.
2601 extra_host_libiberty_configure_flags=
2602 case " $configdirs " in
2603 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
2604 # When these are to be built as shared libraries, the same applies to
2606 extra_host_libiberty_configure_flags=--enable-shared
2609 AC_SUBST(extra_host_libiberty_configure_flags)
2611 # Sometimes we have special requirements for the host zlib.
2612 extra_host_zlib_configure_flags=
2613 case " $configdirs " in
2615 # When bfd is to be built as a shared library, the same applies to
2617 if test "$enable_shared" = "yes"; then
2618 extra_host_zlib_configure_flags=--enable-host-shared
2622 AC_SUBST(extra_host_zlib_configure_flags)
2624 # Produce a warning message for the subdirs we can't configure.
2625 # This isn't especially interesting in the Cygnus tree, but in the individual
2626 # FSF releases, it's important to let people know when their machine isn't
2627 # supported by the one or two programs in a package.
2629 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2630 # If $appdirs is non-empty, at least one of those directories must still
2631 # be configured, or we error out. (E.g., if the gas release supports a
2632 # specified target in some subdirs but not the gas subdir, we shouldn't
2633 # pretend that all is well.)
2634 if test -n "$appdirs" ; then
2635 for dir in $appdirs ; do
2636 if test -r $dir/Makefile.in ; then
2637 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2641 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2647 if test -n "$appdirs" ; then
2648 echo "*** This configuration is not supported by this package." 1>&2
2652 # Okay, some application will build, or we don't care to check. Still
2653 # notify of subdirs not getting built.
2654 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2655 echo " ${notsupp}" 1>&2
2656 echo " (Any other directories should still work fine.)" 1>&2
2664 # To find our prefix, in gcc_cv_tool_prefix.
2669 AC_ARG_WITH([build-sysroot],
2670 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2671 [use sysroot as the system root during the build])],
2672 [if test x"$withval" != x ; then
2673 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2675 [SYSROOT_CFLAGS_FOR_TARGET=])
2676 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2678 AC_ARG_WITH([debug-prefix-map],
2679 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2680 [map A to B, C to D ... in debug information])],
2681 [if test x"$withval" != x; then
2682 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2683 for debug_map in $withval; do
2684 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2687 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2688 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2690 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2691 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2692 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2693 # We want to ensure that TARGET libraries (which we know are built with
2694 # gcc) are built with "-O2 -g", so include those options when setting
2695 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2696 if test "x$CFLAGS_FOR_TARGET" = x; then
2697 if test "x${is_cross_compiler}" = xyes; then
2698 CFLAGS_FOR_TARGET="-g -O2"
2700 CFLAGS_FOR_TARGET=$CFLAGS
2703 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2706 *" -g "* | *" -g3 "*) ;;
2707 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2711 AC_SUBST(CFLAGS_FOR_TARGET)
2713 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2714 if test "x${is_cross_compiler}" = xyes; then
2715 CXXFLAGS_FOR_TARGET="-g -O2"
2717 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2718 case " $CXXFLAGS " in
2720 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2722 case " $CXXFLAGS " in
2723 *" -g "* | *" -g3 "*) ;;
2724 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2728 AC_SUBST(CXXFLAGS_FOR_TARGET)
2730 AC_SUBST(LDFLAGS_FOR_TARGET)
2732 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2733 # the named directory are copied to $(tooldir)/sys-include.
2734 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2735 if test x${is_cross_compiler} = xno ; then
2736 echo 1>&2 '***' --with-headers is only supported when cross compiling
2739 if test x"${with_headers}" != xyes ; then
2740 x=${gcc_cv_tool_prefix}
2741 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2745 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2746 # the name directories are copied to $(tooldir)/lib. Multiple directories
2748 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2749 if test x${is_cross_compiler} = xno ; then
2750 echo 1>&2 '***' --with-libs is only supported when cross compiling
2753 if test x"${with_libs}" != xyes ; then
2754 # Copy the libraries in reverse order, so that files in the first named
2755 # library override files in subsequent libraries.
2756 x=${gcc_cv_tool_prefix}
2757 for l in ${with_libs}; do
2758 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2763 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2765 # This is done by determining whether or not the appropriate directory
2766 # is available, and by checking whether or not specific configurations
2767 # have requested that this magic not happen.
2769 # The command line options always override the explicit settings in
2770 # configure.ac, and the settings in configure.ac override this magic.
2772 # If the default for a toolchain is to use GNU as and ld, and you don't
2773 # want to do that, then you should use the --without-gnu-as and
2774 # --without-gnu-ld options for the configure script. Similarly, if
2775 # the default is to use the included zlib and you don't want to do that,
2776 # you should use the --with-system-zlib option for the configure script.
2778 if test x${use_gnu_as} = x &&
2779 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2781 extra_host_args="$extra_host_args --with-gnu-as"
2784 if test x${use_gnu_ld} = x &&
2785 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2787 extra_host_args="$extra_host_args --with-gnu-ld"
2790 if test x${use_included_zlib} = x &&
2791 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2794 with_system_zlib=yes
2795 extra_host_args="$extra_host_args --with-system-zlib"
2798 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2799 # can detect this case.
2801 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2803 extra_host_args="$extra_host_args --with-newlib"
2806 # Handle ${copy_dirs}
2807 set fnord ${copy_dirs}
2809 while test $# != 0 ; do
2810 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2813 echo Copying $1 to $2
2815 # Use the install script to create the directory and all required
2816 # parent directories.
2817 if test -d $2 ; then
2821 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2824 # Copy the directory, assuming we have tar.
2825 # FIXME: Should we use B in the second tar? Not all systems support it.
2826 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2828 # It is the responsibility of the user to correctly adjust all
2829 # symlinks. If somebody can figure out how to handle them correctly
2830 # here, feel free to add the code.
2837 # Determine a target-dependent exec_prefix that the installed
2838 # gcc will search in. Keep this list sorted by triplet, with
2839 # the *-*-osname triplets last.
2842 i[[34567]]86-pc-msdosdjgpp*)
2843 md_exec_prefix=/dev/env/DJDIR/bin
2848 md_exec_prefix=/usr/ccs/bin
2852 extra_arflags_for_target=
2853 extra_nmflags_for_target=
2854 extra_ranlibflags_for_target=
2855 target_makefile_frag=/dev/null
2858 target_makefile_frag="config/mt-spu"
2860 loongarch*-*linux* | loongarch*-*gnu*)
2861 target_makefile_frag="config/mt-loongarch-gnu"
2864 target_makefile_frag="config/mt-loongarch-elf"
2866 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2867 target_makefile_frag="config/mt-sde"
2869 mipsisa*-*-elfoabi*)
2870 target_makefile_frag="config/mt-mips-elfoabi"
2872 mips*-*-*linux* | mips*-*-gnu*)
2873 target_makefile_frag="config/mt-mips-gnu"
2876 target_makefile_frag="config/mt-nios2-elf"
2879 target_makefile_frag="config/mt-android"
2881 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2882 target_makefile_frag="config/mt-gnu"
2884 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2885 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2886 # commands to handle both 32-bit and 64-bit objects. These flags are
2887 # harmless if we're using GNU nm or ar.
2888 extra_arflags_for_target=" -X32_64"
2889 extra_nmflags_for_target=" -B -X32_64"
2893 alphaieee_frag=/dev/null
2896 # This just makes sure to use the -mieee option to build target libs.
2897 # This should probably be set individually by each library.
2898 alphaieee_frag="config/mt-alphaieee"
2902 # If --enable-target-optspace always use -Os instead of -O2 to build
2903 # the target libraries, similarly if it is not specified, use -Os
2904 # on selected platforms.
2905 ospace_frag=/dev/null
2906 case "${enable_target_optspace}:${target}" in
2908 ospace_frag="config/mt-ospace"
2911 ospace_frag="config/mt-d30v"
2913 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2914 ospace_frag="config/mt-ospace"
2919 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2923 # Some systems (e.g., one of the i386-aix systems the gas testers are
2924 # using) don't handle "\$" correctly, so don't use it here.
2925 tooldir='${exec_prefix}'/${target_noncanonical}
2926 build_tooldir=${tooldir}
2928 # Create a .gdbinit file which runs the one in srcdir
2929 # and tells GDB to look there for source files.
2931 if test -r ${srcdir}/.gdbinit ; then
2934 *) cat > ./.gdbinit <<EOF
2938 source ${srcdir}/.gdbinit
2944 # Make sure that the compiler is able to generate an executable. If it
2945 # can't, we are probably in trouble. We don't care whether we can run the
2946 # executable--we might be using a cross compiler--we only care whether it
2947 # can be created. At this point the main configure script has set CC.
2949 echo "int main () { return 0; }" > conftest.c
2950 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2951 if test $? = 0 ; then
2952 if test -s conftest || test -s conftest.exe ; then
2958 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2959 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2966 # Decide which environment variable is used to find dynamic libraries.
2968 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2969 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2970 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2971 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2974 # On systems where the dynamic library environment variable is PATH,
2975 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2976 # built executables to PATH.
2977 if test "$RPATH_ENVVAR" = PATH; then
2978 GCC_SHLIB_SUBDIR=/shlib
2983 # Adjust the toplevel makefile according to whether bootstrap was selected.
2984 case $enable_bootstrap in
2986 bootstrap_suffix=bootstrap
2987 BUILD_CONFIG=bootstrap-debug
2990 bootstrap_suffix=no-bootstrap
2995 AC_MSG_CHECKING(for default BUILD_CONFIG)
2997 AC_ARG_WITH([build-config],
2998 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2999 [use config/NAME.mk build configuration])],
3000 [case $with_build_config in
3001 yes) with_build_config= ;;
3002 no) with_build_config= BUILD_CONFIG= ;;
3005 if test "x${with_build_config}" != x; then
3006 BUILD_CONFIG=$with_build_config
3008 case $BUILD_CONFIG in
3010 if echo "int f (void) { return 0; }" > conftest.c &&
3011 ${CC} -c conftest.c &&
3012 mv conftest.o conftest.o.g0 &&
3013 ${CC} -c -g conftest.c &&
3014 mv conftest.o conftest.o.g &&
3015 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
3020 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
3024 AC_MSG_RESULT($BUILD_CONFIG)
3025 AC_SUBST(BUILD_CONFIG)
3027 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
3028 AC_MSG_CHECKING([for --enable-vtable-verify])
3029 AC_ARG_ENABLE(vtable-verify,
3030 [AS_HELP_STRING([--enable-vtable-verify],
3031 [Enable vtable verification feature])],
3032 [case "$enableval" in
3033 yes) enable_vtable_verify=yes ;;
3034 no) enable_vtable_verify=no ;;
3035 *) enable_vtable_verify=no;;
3037 [enable_vtable_verify=no])
3038 AC_MSG_RESULT($enable_vtable_verify)
3040 # Record target_configdirs and the configure arguments for target and
3041 # build configuration in Makefile.
3042 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
3043 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
3044 bootstrap_fixincludes=no
3046 # If we are building libgomp, bootstrap it.
3047 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
3048 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
3051 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
3052 # or bootstrap-ubsan, bootstrap it.
3053 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
3054 case "$BUILD_CONFIG" in
3055 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
3056 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
3057 bootstrap_fixincludes=yes
3062 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
3063 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
3064 test "$enable_vtable_verify" != no; then
3065 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
3068 # If we are building libatomic and the list of enabled languages includes the
3069 # D frontend, bootstrap it.
3070 if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
3071 case ,${enable_languages}, in
3073 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
3078 # Determine whether gdb needs tk/tcl or not.
3079 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
3080 # and in that case we want gdb to be built without tk. Ugh!
3081 # In fact I believe gdb is the *only* package directly dependent on tk,
3082 # so we should be able to put the 'maybe's in unconditionally and
3083 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
3084 # 100% sure that that's safe though.
3086 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
3087 case "$enable_gdbtk" in
3091 GDB_TK="${gdb_tk}" ;;
3093 # Only add the dependency on gdbtk when GDBtk is part of the gdb
3094 # distro. Eventually someone will fix this and move Insight, nee
3095 # gdbtk to a separate directory.
3096 if test -d ${srcdir}/gdb/gdbtk ; then
3103 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
3104 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
3106 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
3107 # else does, only include them if one of these is built. The Makefile
3108 # provides the ordering, so it's enough here to add to the list.
3109 case " ${configdirs} " in
3111 configdirs="${configdirs} gnulib gdbsupport"
3114 configdirs="${configdirs} gnulib gdbsupport"
3117 configdirs="${configdirs} gnulib"
3121 # Strip out unwanted targets.
3123 # While at that, we remove Makefiles if we were started for recursive
3124 # configuration, so that the top-level Makefile reconfigures them,
3125 # like we used to do when configure itself was recursive.
3127 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
3128 # but now we're fixing up the Makefile ourselves with the additional
3129 # commands passed to AC_CONFIG_FILES. Use separate variables
3130 # extrasub-{build,host,target} not because there is any reason to split
3131 # the substitutions up that way, but only to remain below the limit of
3132 # 99 commands in a script, for HP-UX sed.
3134 # Do not nest @if/@endif or @unless/@endunless pairs, because
3135 # configure will not warn you at all.
3137 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
3138 yes:yes:*\ gold\ *:*,c++,*) ;;
3139 yes:yes:*\ gold\ *:*)
3140 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
3145 for module in ${build_configdirs} ; do
3146 if test -z "${no_recursion}" \
3147 && test -f ${build_subdir}/${module}/Makefile; then
3148 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
3149 rm -f ${build_subdir}/${module}/Makefile
3151 extrasub_build="$extrasub_build
3152 /^@if build-$module\$/d
3153 /^@endif build-$module\$/d
3154 /^@unless build-$module\$/,/^@endunless build-$module\$/d
3155 /^@if build-$module-$bootstrap_suffix\$/d
3156 /^@endif build-$module-$bootstrap_suffix\$/d
3157 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
3160 for module in ${configdirs} ; do
3161 if test -z "${no_recursion}"; then
3162 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
3163 if test -f ${file}; then
3164 echo 1>&2 "*** removing ${file} to force reconfigure"
3169 case ${module},${bootstrap_fixincludes} in
3170 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
3171 *) host_bootstrap_suffix=$bootstrap_suffix ;;
3173 extrasub_host="$extrasub_host
3175 /^@endif $module\$/d
3176 /^@unless $module\$/,/^@endunless $module\$/d
3177 /^@if $module-$host_bootstrap_suffix\$/d
3178 /^@endif $module-$host_bootstrap_suffix\$/d
3179 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
3182 for module in ${target_configdirs} ; do
3183 if test -z "${no_recursion}" \
3184 && test -f ${target_subdir}/${module}/Makefile; then
3185 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
3186 rm -f ${target_subdir}/${module}/Makefile
3189 # We only bootstrap target libraries listed in bootstrap_target_libs.
3190 case $bootstrap_target_libs in
3191 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
3192 *) target_bootstrap_suffix=no-bootstrap ;;
3195 extrasub_target="$extrasub_target
3196 /^@if target-$module\$/d
3197 /^@endif target-$module\$/d
3198 /^@unless target-$module\$/,/^@endunless target-$module\$/d
3199 /^@if target-$module-$target_bootstrap_suffix\$/d
3200 /^@endif target-$module-$target_bootstrap_suffix\$/d
3201 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
3204 # Do the final fixup along with target modules.
3205 extrasub_target="$extrasub_target
3210 if test "$enable_pgo_build" != "no"; then
3211 extrasub_build="$extrasub_build
3213 /^@endif pgo-build\$/d"
3216 # Create the serialization dependencies. This uses a temporary file.
3218 AC_ARG_ENABLE([serial-configure],
3219 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3220 [force sequential configuration of
3221 sub-packages for the host, target or build
3222 machine, or all sub-packages])])
3224 case ${enable_serial_configure} in
3226 enable_serial_build_configure=yes
3227 enable_serial_host_configure=yes
3228 enable_serial_target_configure=yes
3232 # These force 'configure's to be done one at a time, to avoid problems
3233 # with contention over a shared config.cache.
3235 if test "x${enable_serial_build_configure}" = xyes || test "x${enable_serial_host_configure}" = xyes || test "x${enable_serial_target_configure}" = xyes; then
3236 echo '# serdep.tmp' > serdep.tmp
3239 test "x${enable_serial_build_configure}" = xyes &&
3240 for item in ${build_configdirs} ; do
3243 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
3248 test "x${enable_serial_host_configure}" = xyes &&
3249 for item in ${configdirs} ; do
3252 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
3257 test "x${enable_serial_target_configure}" = xyes &&
3258 for item in ${target_configdirs} ; do
3261 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
3265 serialization_dependencies=serdep.tmp
3266 AC_SUBST_FILE(serialization_dependencies)
3268 # Base args. Strip norecursion, cache-file, srcdir, host, build,
3269 # target, nonopt, and variable assignments. These are the ones we
3270 # might not want to pass down to subconfigures. The exception being
3271 # --cache-file=/dev/null, which is used to turn off the use of cache
3272 # files altogether, and which should be passed on to subconfigures.
3273 # Also strip program-prefix, program-suffix, and program-transform-name,
3274 # so that we can pass down a consistent program-transform-name.
3280 eval "set -- $ac_configure_args"
3283 if test X"$skip_next" = X"yes"; then
3287 if test X"$keep_next" = X"yes"; then
3290 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3292 hbaseargs="$hbaseargs '$ac_arg'"
3293 bbaseargs="$bbaseargs '$ac_arg'"
3294 tbaseargs="$tbaseargs '$ac_arg'"
3299 # Handle separated arguments. Based on the logic generated by
3302 *=* | --config-cache | -C | -disable-* | --disable-* \
3303 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3304 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3305 | -with-* | --with-* | -without-* | --without-* | --x)
3320 --with-* | --without-*)
3321 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3325 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3328 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3331 lib=`echo "$libopt" | sed 's,[-_]prefix$,,'`
3334 lib=`echo "$libopt" | sed 's,[-_]type$,,'`
3343 mpc | mpfr | gmp | isl)
3344 # If we're processing --with-$lib, --with-$lib-include or
3345 # --with-$lib-lib, for one of the libs above, and target is
3346 # different from host, don't pass the current argument to any
3347 # target library's configure.
3348 if test x$is_cross_compiler = xyes; then
3353 # We don't want libintl (and co.) in anything but the host arguments.
3362 --cache-file=/dev/null | \
3363 -cache-file=/dev/null )
3364 # Handled here to avoid the test to skip args below.
3365 hbaseargs="$hbaseargs '$ac_arg'"
3366 bbaseargs="$bbaseargs '$ac_arg'"
3367 tbaseargs="$tbaseargs '$ac_arg'"
3368 # Assert: $separate_arg should always be no.
3369 keep_next=$separate_arg
3385 -program-prefix* | \
3386 -program-suffix* | \
3387 -program-transform-name* )
3388 skip_next=$separate_arg
3392 # An option. Add it.
3395 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3397 hbaseargs="$hbaseargs '$ac_arg'"
3398 if test X"$skip_barg" = Xno; then
3399 bbaseargs="$bbaseargs '$ac_arg'"
3401 if test X"$skip_targ" = Xno; then
3402 tbaseargs="$tbaseargs '$ac_arg'"
3404 keep_next=$separate_arg
3407 # Either a variable assignment, or a nonopt (triplet). Don't
3408 # pass it down; let the Makefile handle this.
3413 # Remove the initial space we just introduced and, as these will be
3414 # expanded by make, quote '$'.
3415 hbaseargs=`echo "x$hbaseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3416 bbaseargs=`echo "x$bbaseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3418 # Add in --program-transform-name, after --program-prefix and
3419 # --program-suffix have been applied to it. Autoconf has already
3420 # doubled dollar signs and backslashes in program_transform_name; we want
3421 # the backslashes un-doubled, and then the entire thing wrapped in single
3422 # quotes, because this will be expanded first by make and then by the shell.
3423 # Also, because we want to override the logic in subdir configure scripts to
3424 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3425 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3426 ${program_transform_name}
3428 gcc_transform_name=`cat conftestsed.out`
3429 rm -f conftestsed.out
3430 hbaseargs="$hbaseargs --program-transform-name='${gcc_transform_name}'"
3431 bbaseargs="$bbaseargs --program-transform-name='${gcc_transform_name}'"
3432 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3433 if test "$silent" = yes; then
3434 bbaseargs="$bbaseargs --silent"
3435 hbaseargs="$hbaseargs --silent"
3436 tbaseargs="$tbaseargs --silent"
3439 bbaseargs="$bbaseargs --disable-option-checking"
3440 hbaseargs="$hbaseargs --disable-option-checking"
3441 tbaseargs="$tbaseargs --disable-option-checking"
3443 if test "$enable_year2038" = no; then
3444 bbaseargs="$bbaseargs --disable-year2038"
3445 hbaseargs="$hbaseargs --disable-year2038"
3446 tbaseargs="$tbaseargs --disable-year2038"
3449 # Record and document user additions to sub configure arguments.
3450 AC_ARG_VAR([build_configargs],
3451 [additional configure arguments for build directories])
3452 AC_ARG_VAR([host_configargs],
3453 [additional configure arguments for host directories])
3454 AC_ARG_VAR([target_configargs],
3455 [additional configure arguments for target directories])
3457 # For the build-side libraries, we just need to pretend we're native,
3458 # and not use the same cache file. Multilibs are neither needed nor
3459 # desired. We can't even use the same cache file for all build-side
3460 # libraries, as they're compiled differently; some with C, some with
3461 # C++ or with different feature-enabling options.
3462 build_configargs="$build_configargs --cache-file=./config.cache ${bbaseargs}"
3464 # For host modules, accept cache file option, or specification as blank.
3465 case "${cache_file}" in
3467 cache_file_option="" ;;
3468 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3469 cache_file_option="--cache-file=${cache_file}" ;;
3471 cache_file_option="--cache-file=../${cache_file}" ;;
3474 # Host dirs don't like to share a cache file either, horribly enough.
3475 # This seems to be due to autoconf 2.5x stupidity.
3476 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${hbaseargs}"
3478 target_configargs="$target_configargs ${tbaseargs}"
3480 # Passing a --with-cross-host argument lets the target libraries know
3481 # whether they are being built with a cross-compiler or being built
3482 # native. However, it would be better to use other mechanisms to make the
3483 # sorts of decisions they want to make on this basis. Please consider
3484 # this option to be deprecated. FIXME.
3485 if test x${is_cross_compiler} = xyes ; then
3486 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3489 # Special user-friendly check for native x86_64-linux build, if
3490 # multilib is not explicitly enabled.
3491 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3492 x86_64-*linux*:yes:$build:$build:)
3493 # Make sure we have a development environment that handles 32-bit
3495 echo "int main () { return 0; }" > conftest.c
3496 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3497 if test $? = 0 ; then
3498 if test -s conftest || test -s conftest.exe ; then
3503 if test x${dev64} != xyes ; then
3504 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.])
3509 # Default to --enable-multilib.
3510 if test x${enable_multilib} = x ; then
3511 target_configargs="--enable-multilib ${target_configargs}"
3514 # Pass --with-newlib if appropriate. Note that target_configdirs has
3515 # changed from the earlier setting of with_newlib.
3516 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3517 target_configargs="--with-newlib ${target_configargs}"
3520 # Different target subdirs use different values of certain variables
3521 # (notably CXX). Worse, multilibs use *lots* of different values.
3522 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3523 # it doesn't automatically accept command-line overrides of them.
3524 # This means it's not safe for target subdirs to share a cache file,
3525 # which is disgusting, but there you have it. Hopefully this can be
3526 # fixed in future. It's still worthwhile to use a cache file for each
3527 # directory. I think.
3529 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3530 # We need to pass --target, as newer autoconf's requires consistency
3531 # for target_alias and gcc doesn't manage it consistently.
3532 target_configargs="--cache-file=./config.cache ${target_configargs}"
3535 case " $target_configdirs " in
3537 case " $target_configargs " in
3538 *" --with-newlib "*)
3541 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3545 # If we're not building GCC, don't discard standard headers.
3546 if test -d ${srcdir}/gcc; then
3547 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3549 if test "${build}" != "${host}"; then
3550 # On Canadian crosses, CC_FOR_TARGET will have already been set
3551 # by `configure', so we won't have an opportunity to add -Bgcc/
3552 # to it. This is right: we don't want to search that directory
3553 # for binaries, but we want the header files in there, so add
3555 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3557 # Someone might think of using the pre-installed headers on
3558 # Canadian crosses, in case the installed compiler is not fully
3559 # compatible with the compiler being built. In this case, it
3560 # would be better to flag an error than risking having
3561 # incompatible object files being constructed. We can't
3562 # guarantee that an error will be flagged, but let's hope the
3563 # compiler will do it, when presented with incompatible header
3568 case "${target}-${is_cross_compiler}" in
3569 i[[3456789]]86-*-linux*-no)
3570 # Here host == target, so we don't need to build gcc,
3571 # so we don't want to discard standard headers.
3572 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3575 # If we're building newlib, use its generic headers last, but search
3576 # for any libc-related directories first (so make it the last -B
3578 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3580 # If we're building libgloss, find the startup file, simulator library
3581 # and linker script.
3582 case " $target_configdirs " in
3584 # Look for startup file, simulator library and maybe linker script.
3585 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3586 # Look for libnosys.a in case the target needs it.
3587 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3588 # Most targets have the linker script in the source directory.
3589 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3600 x86_64-*mingw* | *-w64-mingw*)
3601 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3602 # however, use a symlink named 'mingw' in ${prefix} .
3603 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3606 # MinGW can't be handled as Cygwin above since it does not use newlib.
3607 FLAGS_FOR_TARGET=$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'
3611 # Allow the user to override the flags for
3612 # our build compiler if desired.
3613 if test x"${build}" = x"${host}" ; then
3614 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3615 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
3616 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3617 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3620 # On Canadian crosses, we'll be searching the right directories for
3621 # the previously-installed cross compiler, so don't bother to add
3622 # flags for directories within the install tree of the compiler
3623 # being built; programs in there won't even run.
3624 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3625 # Search for pre-installed headers if nothing else fits.
3626 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3629 if test "x${use_gnu_ld}" = x &&
3630 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3631 # Arrange for us to find uninstalled linker scripts.
3632 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3635 # Search for other target-specific linker scripts and such.
3638 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3640 # The VxWorks support for shared libraries is getting in
3641 # incrementally. Make sure it doesn't get activated implicitly:
3643 if test "${enable_shared-unset}" = unset ; then
3645 # So the build of libraries knows ...
3646 target_configargs="${target_configargs} --disable-shared"
3648 host_configargs="${host_configargs} --disable-shared"
3653 # Makefile fragments.
3654 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3656 eval fragval=\$$frag
3657 if test $fragval != /dev/null; then
3658 eval $frag=${srcdir}/$fragval
3661 AC_SUBST_FILE(host_makefile_frag)
3662 AC_SUBST_FILE(target_makefile_frag)
3663 AC_SUBST_FILE(alphaieee_frag)
3664 AC_SUBST_FILE(ospace_frag)
3666 # Miscellanea: directories, flags, etc.
3667 AC_SUBST(RPATH_ENVVAR)
3668 AC_SUBST(GCC_SHLIB_SUBDIR)
3670 AC_SUBST(build_tooldir)
3671 AC_SUBST(CONFIGURE_GDB_TK)
3673 AC_SUBST(INSTALL_GDB_TK)
3675 # Build module lists & subconfigure args.
3676 AC_SUBST(build_configargs)
3677 AC_SUBST(build_configdirs)
3679 # Host module lists & subconfigure args.
3680 AC_SUBST(host_configargs)
3681 AC_SUBST(configdirs)
3682 AC_SUBST(target_configdirs)
3684 # Target module lists & subconfigure args.
3685 AC_SUBST(target_configargs)
3689 AC_SUBST(AR_FOR_BUILD)
3690 AC_SUBST(AS_FOR_BUILD)
3691 AC_SUBST(CC_FOR_BUILD)
3692 AC_SUBST(CFLAGS_FOR_BUILD)
3693 AC_SUBST(CPP_FOR_BUILD)
3694 AC_SUBST(CPPFLAGS_FOR_BUILD)
3695 AC_SUBST(CXXFLAGS_FOR_BUILD)
3696 AC_SUBST(CXX_FOR_BUILD)
3697 AC_SUBST(DLLTOOL_FOR_BUILD)
3698 AC_SUBST(DSYMUTIL_FOR_BUILD)
3699 AC_SUBST(GFORTRAN_FOR_BUILD)
3700 AC_SUBST(GOC_FOR_BUILD)
3701 AC_SUBST(GDC_FOR_BUILD)
3702 AC_SUBST(LDFLAGS_FOR_BUILD)
3703 AC_SUBST(LD_FOR_BUILD)
3704 AC_SUBST(NM_FOR_BUILD)
3705 AC_SUBST(RANLIB_FOR_BUILD)
3706 AC_SUBST(WINDMC_FOR_BUILD)
3707 AC_SUBST(WINDRES_FOR_BUILD)
3709 # Generate default definitions for YACC, M4, LEX and other programs that run
3710 # on the build machine. These are used if the Makefile can't locate these
3711 # programs in objdir.
3712 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3714 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3715 case " $build_configdirs " in
3716 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3719 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3720 case " $build_configdirs " in
3721 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3724 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3725 case " $build_configdirs " in
3726 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3729 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3730 case " $build_configdirs " in
3731 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3732 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3735 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3736 case " $build_configdirs " in
3737 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3740 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3741 case " $build_configdirs " in
3742 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3745 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3746 # higher, else we use the "missing" dummy.
3747 if ${MAKEINFO} --version \
3748 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3751 MAKEINFO="$MISSING makeinfo"
3757 # FIXME: expect and dejagnu may become build tools?
3759 AC_CHECK_PROGS(EXPECT, expect, expect)
3760 case " $configdirs " in
3762 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3766 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3767 case " $configdirs " in
3769 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3775 NCN_STRICT_CHECK_TOOLS(AR, ar)
3776 NCN_STRICT_CHECK_TOOLS(AS, as)
3777 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3778 NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
3779 NCN_STRICT_CHECK_TOOLS(LD, ld)
3780 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3781 NCN_STRICT_CHECK_TOOLS(NM, nm)
3782 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3783 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3784 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3785 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3786 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3787 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3788 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3789 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3796 GDCFLAGS=${GDCFLAGS-${CFLAGS}}
3797 AC_SUBST(PKG_CONFIG_PATH)
3799 GCC_PLUGIN_OPTION(PLUGIN_OPTION)
3801 RANLIB_PLUGIN_OPTION=
3802 if test -n "$PLUGIN_OPTION"; then
3803 if $AR --help 2>&1 | grep -q "\--plugin"; then
3804 AR_PLUGIN_OPTION="$PLUGIN_OPTION"
3806 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
3807 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
3810 AC_SUBST(AR_PLUGIN_OPTION)
3811 AC_SUBST(RANLIB_PLUGIN_OPTION)
3814 AC_ARG_WITH([build-time-tools],
3815 [AS_HELP_STRING([--with-build-time-tools=PATH],
3816 [use given path to find target tools during the build])],
3817 [case x"$withval" in
3820 with_build_time_tools=
3821 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3824 [with_build_time_tools=])
3826 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3827 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3828 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3829 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3830 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3831 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3832 NCN_STRICT_CHECK_TARGET_TOOLS(GM2_FOR_TARGET, gm2)
3834 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3835 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3836 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3837 ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
3838 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3839 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3840 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3841 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3842 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3843 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3844 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3845 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3846 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3847 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3848 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3850 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3852 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3853 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3854 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3855 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3856 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3857 [gcc/xg++ -B$$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3859 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3860 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3862 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3863 GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
3864 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3865 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3866 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3867 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3868 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3869 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3870 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3871 GCC_TARGET_TOOL(gm2, GM2_FOR_TARGET, GM2,
3872 [gcc/gm2 -B$$r/$(HOST_SUBDIR)/gcc/], m2)
3873 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3874 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3875 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3876 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3877 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3878 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3879 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3880 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3881 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3882 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3883 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3885 AC_SUBST(FLAGS_FOR_TARGET)
3886 AC_SUBST(RAW_CXX_FOR_TARGET)
3888 # Certain tools may need extra flags.
3889 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3890 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3891 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3893 # When building target libraries, except in a Canadian cross, we use
3894 # the same toolchain as the compiler we just built.
3895 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3896 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3897 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3898 if test $host = $build; then
3899 case " $configdirs " in
3901 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3902 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3903 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3908 AC_SUBST(COMPILER_AS_FOR_TARGET)
3909 AC_SUBST(COMPILER_LD_FOR_TARGET)
3910 AC_SUBST(COMPILER_NM_FOR_TARGET)
3912 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3913 AC_ARG_ENABLE(maintainer-mode,
3914 [AS_HELP_STRING([--enable-maintainer-mode],
3915 [enable make rules and dependencies not useful
3916 (and sometimes confusing) to the casual installer])],
3917 USE_MAINTAINER_MODE=$enableval,
3918 USE_MAINTAINER_MODE=no)
3919 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3920 AC_SUBST(MAINTAINER_MODE_TRUE)
3921 AC_SUBST(MAINTAINER_MODE_FALSE)
3922 if test "$USE_MAINTAINER_MODE" = yes; then
3923 MAINTAINER_MODE_TRUE=
3924 MAINTAINER_MODE_FALSE='#'
3926 MAINTAINER_MODE_TRUE='#'
3927 MAINTAINER_MODE_FALSE=
3929 MAINT=$MAINTAINER_MODE_TRUE
3932 # ---------------------
3933 # GCC bootstrap support
3934 # ---------------------
3936 # Stage specific cflags for build.
3941 yes) stage1_cflags="-g -Wa,-J" ;;
3942 *) stage1_cflags="-g -J" ;;
3946 AC_SUBST(stage1_cflags)
3948 # Enable --enable-checking in stage1 of the compiler.
3949 AC_ARG_ENABLE(stage1-checking,
3950 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3951 [choose additional checking for stage1 of the compiler])],
3952 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3953 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3954 # For --disable-checking or implicit --enable-checking=release, avoid
3955 # setting --enable-checking=gc in the default stage1 checking for LTO
3956 # bootstraps. See PR62077.
3957 case $BUILD_CONFIG in
3959 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3961 stage1_checking=--enable-checking=yes,types;;
3963 if test "x$enable_checking" = x && \
3964 test -d ${srcdir}/gcc && \
3965 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3966 stage1_checking=--enable-checking=yes,types,extra
3969 stage1_checking=--enable-checking=$enable_checking,types
3971 AC_SUBST(stage1_checking)
3973 # Enable -Werror in bootstrap stage2 and later.
3974 AC_ARG_ENABLE(werror,
3975 [AS_HELP_STRING([--enable-werror],
3976 [enable -Werror in bootstrap stage2 and later])],
3978 case ${enable_werror} in
3979 yes) stage2_werror_flag="--enable-werror-always" ;;
3980 *) stage2_werror_flag="" ;;
3984 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3985 case $BUILD_CONFIG in
3987 stage2_werror_flag="--enable-werror-always" ;;
3989 stage2_werror_flag="--enable-werror-always" ;;
3994 AC_SUBST(stage2_werror_flag)
3996 # Specify what files to not compare during bootstrap.
3998 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3999 compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/M2Version*"
4000 compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/SYSTEM*"
4001 compare_exclusions="$compare_exclusions | gcc/m2/gm2version*"
4003 hppa*64*-*-hpux*) ;;
4004 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
4006 AC_SUBST(compare_exclusions)
4008 AC_CONFIG_FILES([Makefile],
4009 [sed "$extrasub_build" Makefile |
4010 sed "$extrasub_host" |
4011 sed "$extrasub_target" > mf$$
4012 mv -f mf$$ Makefile],
4013 [extrasub_build="$extrasub_build"
4014 extrasub_host="$extrasub_host"
4015 extrasub_target="$extrasub_target"])