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"
1009 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1010 noconfigdirs="$noconfigdirs sim target-rda"
1015 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1016 noconfigdirs="$noconfigdirs sim target-rda"
1019 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1020 noconfigdirs="$noconfigdirs sim target-rda"
1022 i[[3456789]]86-*-darwin*)
1023 noconfigdirs="$noconfigdirs ld gprof"
1024 noconfigdirs="$noconfigdirs sim target-rda"
1026 x86_64-*-darwin[[912]]*)
1027 noconfigdirs="$noconfigdirs ld gas gprof"
1028 noconfigdirs="$noconfigdirs sim target-rda"
1031 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1032 noconfigdirs="$noconfigdirs sim target-rda"
1037 if test "x$with_gmp" = x \
1038 && ! test -d ${srcdir}/gmp \
1039 && test -f /usr/local/include/gmp.h; then
1044 # Remove unsupported stuff on all kaOS configurations.
1045 noconfigdirs="$noconfigdirs target-libgloss"
1052 noconfigdirs="$noconfigdirs target-libgloss"
1055 noconfigdirs="$noconfigdirs target-libgloss"
1057 # The tpf target doesn't support gdb yet.
1059 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
1062 noconfigdirs="$noconfigdirs target-rda"
1067 # ld works, but does not support shared libraries.
1068 # gas doesn't generate exception information.
1069 noconfigdirs="$noconfigdirs gas ld"
1072 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1075 # newlib is not 64 bit ready
1076 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1079 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1081 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1082 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1085 noconfigdirs="$noconfigdirs sim"
1088 noconfigdirs="$noconfigdirs target-libgloss"
1091 noconfigdirs="$noconfigdirs ld target-libgloss"
1094 if test x${with_avrlibc} != xno; then
1095 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1098 c4x-*-* | tic4x-*-*)
1099 noconfigdirs="$noconfigdirs target-libgloss"
1102 noconfigdirs="$noconfigdirs target-libgloss gdb"
1105 noconfigdirs="$noconfigdirs target-libgloss"
1108 noconfigdirs="$noconfigdirs gdb"
1111 noconfigdirs="$noconfigdirs gdb"
1114 noconfigdirs="$noconfigdirs target-rda gprof"
1117 noconfigdirs="$noconfigdirs"
1120 noconfigdirs="$noconfigdirs target-libgloss"
1123 noconfigdirs="$noconfigdirs target-libgloss"
1125 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1128 noconfigdirs="$noconfigdirs gdb"
1131 noconfigdirs="$noconfigdirs gdb ld"
1139 hppa*-*-openbsd* | \
1145 noconfigdirs="$noconfigdirs ld"
1148 noconfigdirs="$noconfigdirs gdb"
1151 # No gdb support yet.
1152 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1155 # No ld support yet.
1156 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1159 # No ld support yet.
1160 noconfigdirs="$noconfigdirs libgui itcl ld"
1162 i[[3456789]]86-w64-mingw*)
1164 i[[3456789]]86-*-mingw*)
1165 target_configdirs="$target_configdirs target-winsup"
1168 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1169 noconfigdirs="$noconfigdirs target-libgloss"
1170 # always build newlib if winsup directory is present.
1171 if test -d "$srcdir/winsup/cygwin"; then
1172 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1173 elif test -d "$srcdir/newlib"; then
1174 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1177 i[[3456789]]86-*-pe)
1178 noconfigdirs="$noconfigdirs target-libgloss"
1180 i[[3456789]]86-*-sco3.2v5*)
1181 # The linker does not yet know about weak symbols in COFF,
1182 # and is not configured to handle mixed ELF and COFF.
1183 noconfigdirs="$noconfigdirs ld target-libgloss"
1185 i[[3456789]]86-*-sco*)
1186 noconfigdirs="$noconfigdirs gprof target-libgloss"
1188 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1189 noconfigdirs="$noconfigdirs target-libgloss"
1191 i[[3456789]]86-*-sysv4*)
1192 noconfigdirs="$noconfigdirs target-libgloss"
1194 i[[3456789]]86-*-beos*)
1195 noconfigdirs="$noconfigdirs gdb"
1197 i[[3456789]]86-*-rdos*)
1198 noconfigdirs="$noconfigdirs gdb"
1201 noconfigdirs="$noconfigdirs gdb gdbserver sim"
1204 noconfigdirs="$noconfigdirs gdb"
1207 noconfigdirs="$noconfigdirs sim"
1210 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1211 noconfigdirs="$noconfigdirs $target_libraries"
1214 noconfigdirs="$noconfigdirs gdb gprof"
1217 # copied from rs6000-*-* entry
1218 noconfigdirs="$noconfigdirs gprof"
1220 powerpc*-*-winnt* | powerpc*-*-pe*)
1221 target_configdirs="$target_configdirs target-winsup"
1222 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1223 # always build newlib.
1224 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1226 # This is temporary until we can link against shared libraries
1227 powerpcle-*-solaris*)
1228 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1231 noconfigdirs="$noconfigdirs gdb"
1234 noconfigdirs="$noconfigdirs gprof"
1237 noconfigdirs="$noconfigdirs gprof"
1240 noconfigdirs="$noconfigdirs gprof"
1243 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1246 noconfigdirs="$noconfigdirs gprof"
1248 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1249 if test x$with_newlib = xyes; then
1250 noconfigdirs="$noconfigdirs gprof"
1254 noconfigdirs="$noconfigdirs gprof target-libgloss"
1257 noconfigdirs="$noconfigdirs gprof target-libgloss"
1260 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1264 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1265 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1266 noconfigdirs="$noconfigdirs ld gas gprof"
1269 noconfigdirs="$noconfigdirs gprof"
1272 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1279 noconfigdirs="$noconfigdirs target-libgloss" ;;
1283 if test x${is_cross_compiler} = xno ; then
1288 noconfigdirs="$noconfigdirs sim"
1290 tilepro*-*-* | tilegx*-*-*)
1291 noconfigdirs="$noconfigdirs sim"
1294 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1297 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1300 noconfigdirs="$noconfigdirs ld"
1302 loongarch*-*-linux*)
1305 noconfigdirs="$noconfigdirs gprof"
1309 # If we aren't building newlib, then don't build libgloss, since libgloss
1310 # depends upon some newlib header files.
1311 case "${noconfigdirs}" in
1312 *target-libgloss*) ;;
1313 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1316 # Work in distributions that contain no compiler tools, like Autoconf.
1317 host_makefile_frag=/dev/null
1318 if test -d ${srcdir}/config ; then
1320 i[[3456789]]86-*-msdosdjgpp*)
1321 host_makefile_frag="config/mh-djgpp"
1324 ACX_CHECK_CYGWIN_CAT_WORKS
1325 host_makefile_frag="config/mh-cygwin"
1328 host_makefile_frag="config/mh-mingw"
1331 host_makefile_frag="config/mh-alpha-linux"
1334 host_makefile_frag="config/mh-pa"
1337 host_makefile_frag="config/mh-pa"
1339 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
1340 host_makefile_frag="config/mh-darwin"
1343 host_makefile_frag="config/mh-ppc-aix"
1346 host_makefile_frag="config/mh-ppc-aix"
1351 if test "${build}" != "${host}" ; then
1352 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1353 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1354 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1355 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
1356 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1357 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
1358 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1359 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1360 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1361 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1362 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1363 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1364 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1365 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1366 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1368 AR_FOR_BUILD="\$(AR)"
1369 AS_FOR_BUILD="\$(AS)"
1370 CC_FOR_BUILD="\$(CC)"
1371 CXX_FOR_BUILD="\$(CXX)"
1372 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
1373 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1374 GOC_FOR_BUILD="\$(GOC)"
1375 GDC_FOR_BUILD="\$(GDC)"
1376 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1377 LD_FOR_BUILD="\$(LD)"
1378 NM_FOR_BUILD="\$(NM)"
1379 RANLIB_FOR_BUILD="\$(RANLIB)"
1380 WINDRES_FOR_BUILD="\$(WINDRES)"
1381 WINDMC_FOR_BUILD="\$(WINDMC)"
1387 # We must set the default linker to the linker used by gcc for the correct
1388 # operation of libtool. If LD is not defined and we are using gcc, try to
1389 # set the LD default to the ld used by gcc.
1390 if test -z "$LD"; then
1391 if test "$GCC" = yes; then
1394 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1396 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1398 case $gcc_prog_ld in
1399 # Accept absolute paths.
1400 [[\\/]* | [A-Za-z]:[\\/]*)]
1401 LD="$gcc_prog_ld" ;;
1406 # Check whether -static-libstdc++ -static-libgcc is supported.
1408 if test "$GCC" = yes; then
1409 saved_LDFLAGS="$LDFLAGS"
1411 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1412 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1414 AC_LINK_IFELSE([AC_LANG_SOURCE([
1415 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1416 #error -static-libstdc++ not implemented
1419 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1420 [AC_MSG_RESULT([no])])
1423 LDFLAGS="$saved_LDFLAGS"
1428 ACX_PROG_CMP_IGNORE_INITIAL
1430 AC_ARG_ENABLE([bootstrap],
1431 [AS_HELP_STRING([--enable-bootstrap],
1432 [enable bootstrapping @<:@yes if native build@:>@])],,
1433 enable_bootstrap=default)
1435 # Issue errors and warnings for invalid/strange bootstrap combinations.
1436 if test -r $srcdir/gcc/configure; then
1442 case "$have_compiler:$host:$target:$enable_bootstrap" in
1445 # Default behavior. Enable bootstrap if we have a compiler
1446 # and we are in a native configuration.
1447 yes:$build:$build:default)
1448 enable_bootstrap=yes ;;
1451 enable_bootstrap=no ;;
1453 # We have a compiler and we are in a native configuration, bootstrap is ok
1454 yes:$build:$build:yes)
1457 # Other configurations, but we have a compiler. Assume the user knows
1460 AC_MSG_WARN([trying to bootstrap a cross compiler])
1463 # No compiler: if they passed --enable-bootstrap explicitly, fail
1465 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1467 # Fail if wrong command line
1469 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1473 # When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
1474 # C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1475 # require C++11 (or higher).
1476 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1477 CXX="$CXX -std=c++11"
1478 elif test "$have_compiler" = yes; then
1479 AX_CXX_COMPILE_STDCXX(11)
1481 if test "${build}" != "${host}"; then
1482 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1486 AC_ARG_ENABLE([pgo-build],
1487 [AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1488 [enable the PGO build])],
1489 [enable_pgo_build=$enableval],
1490 [enable_pgo_build=no])
1492 # Issue errors and warnings for invalid/strange PGO build combinations.
1493 case "$have_compiler:$host:$target:$enable_pgo_build" in
1496 # Allow the PGO build only if we aren't building a compiler and
1497 # we are in a native configuration.
1498 no:$build:$build:yes | no:$build:$build:lto) ;;
1500 # Disallow the PGO bootstrap if we are building a compiler.
1501 yes:*:*:yes | yes:*:*:lto)
1502 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1505 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1509 if test "$enable_pgo_build" != "no"; then
1510 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1511 old_CFLAGS="$CFLAGS"
1512 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1513 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1514 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1515 [PGO_BUILD_GEN_CFLAGS=])
1516 CFLAGS="$old_CFLAGS"
1517 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1518 AC_MSG_RESULT([yes])
1519 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1522 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1525 if test "$enable_pgo_build" = "lto"; then
1526 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1527 old_CFLAGS="$CFLAGS"
1528 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1529 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1530 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1531 [PGO_BUILD_LTO_CFLAGS=])
1532 CFLAGS="$old_CFLAGS"
1533 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1534 AC_MSG_RESULT([yes])
1537 AC_MSG_WARN([LTO is disabled for the PGO build])
1541 AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1542 AC_SUBST(PGO_BUILD_USE_CFLAGS)
1543 AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1545 # Used for setting $lt_cv_objdir
1548 # Check for GMP, MPFR and MPC
1551 if test -d ${srcdir}/gcc ; then
1555 if test -d ${srcdir}/gdb ; then
1556 if test "x$enable_gdb" != xno; then
1561 gmplibs="-lmpfr -lgmp"
1562 if test x"$require_mpc" = "xyes" ; then
1563 gmplibs="-lmpc $gmplibs"
1568 # Specify a location for mpc
1569 # check for this first so it ends up on the link line before mpfr.
1571 [AS_HELP_STRING([--with-mpc=PATH],
1572 [specify prefix directory for installed MPC package.
1573 Equivalent to --with-mpc-include=PATH/include
1574 plus --with-mpc-lib=PATH/lib])])
1575 AC_ARG_WITH(mpc-include,
1576 [AS_HELP_STRING([--with-mpc-include=PATH],
1577 [specify directory for installed MPC include files])])
1578 AC_ARG_WITH(mpc-lib,
1579 [AS_HELP_STRING([--with-mpc-lib=PATH],
1580 [specify directory for the installed MPC library])])
1582 if test "x$with_mpc" != x; then
1583 gmplibs="-L$with_mpc/lib $gmplibs"
1584 gmpinc="-I$with_mpc/include $gmpinc"
1586 if test "x$with_mpc_include" != x; then
1587 gmpinc="-I$with_mpc_include $gmpinc"
1589 if test "x$with_mpc_lib" != x; then
1590 gmplibs="-L$with_mpc_lib $gmplibs"
1592 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1593 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1594 gmpinc='-I$$s/mpc/src '"$gmpinc"
1595 # Do not test the mpc version. Assume that it is sufficient, since
1596 # it is in the source tree, and the library has not been built yet
1597 # but it would be included on the link line in the version check below
1598 # hence making the test fail.
1602 # Specify a location for mpfr
1603 # check for this first so it ends up on the link line before gmp.
1605 [AS_HELP_STRING([--with-mpfr=PATH],
1606 [specify prefix directory for installed MPFR package.
1607 Equivalent to --with-mpfr-include=PATH/include
1608 plus --with-mpfr-lib=PATH/lib])])
1609 AC_ARG_WITH(mpfr-include,
1610 [AS_HELP_STRING([--with-mpfr-include=PATH],
1611 [specify directory for installed MPFR include files])])
1612 AC_ARG_WITH(mpfr-lib,
1613 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1614 [specify directory for the installed MPFR library])])
1616 if test "x$with_mpfr" != x; then
1617 gmplibs="-L$with_mpfr/lib $gmplibs"
1618 gmpinc="-I$with_mpfr/include $gmpinc"
1620 if test "x$with_mpfr_include" != x; then
1621 gmpinc="-I$with_mpfr_include $gmpinc"
1623 if test "x$with_mpfr_lib" != x; then
1624 gmplibs="-L$with_mpfr_lib $gmplibs"
1626 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1627 # MPFR v3.1.0 moved the sources into a src sub-directory.
1628 if ! test -d ${srcdir}/mpfr/src; then
1630 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1632 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1633 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1634 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1635 # Do not test the mpfr version. Assume that it is sufficient, since
1636 # it is in the source tree, and the library has not been built yet
1637 # but it would be included on the link line in the version check below
1638 # hence making the test fail.
1642 # Specify a location for gmp
1644 [AS_HELP_STRING([--with-gmp=PATH],
1645 [specify prefix directory for the installed GMP package.
1646 Equivalent to --with-gmp-include=PATH/include
1647 plus --with-gmp-lib=PATH/lib])])
1648 AC_ARG_WITH(gmp-include,
1649 [AS_HELP_STRING([--with-gmp-include=PATH],
1650 [specify directory for installed GMP include files])])
1651 AC_ARG_WITH(gmp-lib,
1652 [AS_HELP_STRING([--with-gmp-lib=PATH],
1653 [specify directory for the installed GMP library])])
1656 if test "x$with_gmp" != x; then
1657 gmplibs="-L$with_gmp/lib $gmplibs"
1658 gmpinc="-I$with_gmp/include $gmpinc"
1660 if test "x$with_gmp_include" != x; then
1661 gmpinc="-I$with_gmp_include $gmpinc"
1663 if test "x$with_gmp_lib" != x; then
1664 gmplibs="-L$with_gmp_lib $gmplibs"
1666 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1667 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1668 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1669 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1670 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1671 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1672 # Do not test the gmp version. Assume that it is sufficient, since
1673 # it is in the source tree, and the library has not been built yet
1674 # but it would be included on the link line in the version check below
1675 # hence making the test fail.
1679 if test "x$require_gmp" = xyes && test "x$have_gmp" = xno; then
1681 saved_CFLAGS="$CFLAGS"
1682 CFLAGS="$CFLAGS $gmpinc"
1683 # Check for the recommended and required versions of GMP.
1684 AC_MSG_CHECKING([for the correct version of gmp.h])
1685 AC_TRY_COMPILE([#include "gmp.h"],[
1686 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1687 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1688 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1691 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1692 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1693 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1694 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1697 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1698 [AC_MSG_RESULT([no]); have_gmp=no])
1700 # If we have GMP, check the MPFR version.
1701 if test x"$have_gmp" = xyes; then
1702 # Check for the recommended and required versions of MPFR.
1703 AC_MSG_CHECKING([for the correct version of mpfr.h])
1704 AC_TRY_COMPILE([#include <gmp.h>
1705 #include <mpfr.h>],[
1706 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
1709 ], [AC_TRY_COMPILE([#include <gmp.h>
1710 #include <mpfr.h>],[
1711 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
1714 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1715 [AC_MSG_RESULT([no]); have_gmp=no])
1718 # Check for the MPC header version.
1719 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes ; then
1720 # Check for the recommended and required versions of MPC.
1721 AC_MSG_CHECKING([for the correct version of mpc.h])
1722 AC_TRY_COMPILE([#include <mpc.h>],[
1723 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1726 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1727 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1730 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1731 [AC_MSG_RESULT([no]); have_gmp=no])
1734 # Now check the MPFR library.
1735 if test x"$have_gmp" = xyes; then
1737 LIBS="$LIBS $gmplibs"
1738 AC_MSG_CHECKING([for the correct version of the gmp/mpfr libraries])
1739 AC_TRY_LINK([#include <mpfr.h>],[
1745 mpfr_atan2 (n, n, x, MPFR_RNDN);
1746 mpfr_erfc (n, x, MPFR_RNDN);
1747 mpfr_subnormalize (x, t, MPFR_RNDN);
1750 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1754 # Now check the MPC library
1755 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes; then
1757 LIBS="$LIBS $gmplibs"
1758 AC_MSG_CHECKING([for the correct version of the mpc libraries])
1759 AC_TRY_LINK([#include <mpc.h>],[
1762 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1763 mpc_cosh (c, c, MPC_RNDNN);
1764 mpc_pow (c, c, c, MPC_RNDNN);
1765 mpc_acosh (c, c, MPC_RNDNN);
1767 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1771 CFLAGS="$saved_CFLAGS"
1773 # The library versions listed in the error message below should match
1774 # the HARD-minimums enforced above.
1775 if test x$have_gmp != xyes; then
1776 if test -d ${srcdir}/gcc ; then
1777 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
1778 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1779 their locations. Source code for these libraries can be found at
1780 their respective hosting sites as well as at
1781 https://gcc.gnu.org/pub/gcc/infrastructure/. See also
1782 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1783 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1784 make sure that you have installed both the libraries and the header
1785 files. They may be located in separate packages.])
1787 AC_MSG_ERROR([Building GDB requires GMP 4.2+, and MPFR 3.1.0+.
1788 Try the --with-gmp and/or --with-mpfr options to specify
1789 their locations. If you obtained GMP and/or MPFR from a vendor
1790 distribution package, make sure that you have installed both the libraries
1791 and the header files. They may be located in separate packages.])
1796 # Flags needed for both GMP, MPFR and/or MPC.
1799 AC_SUBST(extra_mpfr_configure_flags)
1800 AC_SUBST(extra_mpc_gmp_configure_flags)
1801 AC_SUBST(extra_mpc_mpfr_configure_flags)
1802 AC_SUBST(extra_isl_gmp_configure_flags)
1804 # Libraries to use for stage1 or when not bootstrapping.
1805 AC_ARG_WITH(stage1-libs,
1806 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1807 [if test "$withval" = "no" -o "$withval" = "yes"; then
1810 stage1_libs=$withval
1813 AC_SUBST(stage1_libs)
1815 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1816 # default is yes if gcc is being built; no otherwise. The reason for
1817 # this default is that gdb is sometimes linked against GNU Source
1818 # Highlight, which is a shared library that uses C++ exceptions. In
1819 # this case, -static-libstdc++ will cause crashes.
1820 AC_ARG_WITH(static-standard-libraries,
1821 [AS_HELP_STRING([--with-static-standard-libraries],
1822 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1823 [], [with_static_standard_libraries=auto])
1824 if test "$with_static_standard_libraries" = auto; then
1825 with_static_standard_libraries=$have_compiler
1828 # Linker flags to use for stage1 or when not bootstrapping.
1829 AC_ARG_WITH(stage1-ldflags,
1830 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1831 [if test "$withval" = "no" -o "$withval" = "yes"; then
1834 stage1_ldflags=$withval
1837 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1838 # if supported. But if the user explicitly specified the libraries to use,
1839 # trust that they are doing what they want.
1840 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1841 -a "$have_static_libs" = yes; then
1842 stage1_ldflags="-static-libstdc++ -static-libgcc"
1844 AC_SUBST(stage1_ldflags)
1846 # Libraries to use for stage2 and later builds.
1847 AC_ARG_WITH(boot-libs,
1848 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1849 [if test "$withval" = "no" -o "$withval" = "yes"; then
1852 poststage1_libs=$withval
1855 AC_SUBST(poststage1_libs)
1857 # Linker flags to use for stage2 and later builds.
1858 AC_ARG_WITH(boot-ldflags,
1859 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1860 [linker flags for stage2 and later])],
1861 [if test "$withval" = "no" -o "$withval" = "yes"; then
1864 poststage1_ldflags=$withval
1866 [poststage1_ldflags=
1867 # In stages 2 and 3, default to linking libstdc++ and libgcc
1868 # statically. But if the user explicitly specified the libraries to
1869 # use, trust that they are doing what they want.
1870 if test "$poststage1_libs" = ""; then
1871 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1874 *-darwin2* | *-darwin1[[56789]]*)
1875 # For these versions, we default to using embedded rpaths.
1876 if test "x$enable_darwin_at_rpath" != "xno"; then
1877 poststage1_ldflags="$poststage1_ldflags -nodefaultrpaths"
1881 # For these versions, we only use embedded rpaths on demand.
1882 if test "x$enable_darwin_at_rpath" = "xyes"; then
1883 poststage1_ldflags="$poststage1_ldflags -nodefaultrpaths"
1887 AC_SUBST(poststage1_ldflags)
1889 # GCC GRAPHITE dependency isl.
1890 # Basic setup is inlined here, actual checks are in config/isl.m4
1895 [Specify prefix directory for the installed isl package.
1896 Equivalent to --with-isl-include=PATH/include
1897 plus --with-isl-lib=PATH/lib])])
1899 # Treat --without-isl as a request to disable
1900 # GRAPHITE support and skip all following checks.
1901 if test "x$with_isl" != "xno"; then
1903 dnl Provide configure switches and initialize islinc & isllibs
1904 dnl with user input.
1906 dnl The versions of isl that work for Graphite
1908 dnl Only execute fail-action, if isl has been requested.
1910 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1913 # If the isl check failed, disable builds of in-tree variant of isl
1914 if test "x$with_isl" = xno ||
1915 test "x$gcc_cv_isl" = xno; then
1916 noconfigdirs="$noconfigdirs isl"
1923 # Check for LTO support.
1925 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1926 enable_lto=$enableval,
1927 enable_lto=yes; default_enable_lto=yes)
1929 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1930 build_lto_plugin=yes
1931 ],[if test x"$default_enable_lto" = x"yes" ; then
1933 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1934 # On other non-ELF platforms, LTO has yet to be validated.
1938 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1939 # It would also be nice to check the binutils support, but we don't
1940 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1941 # warn during gcc/ subconfigure; unless you're bootstrapping with
1942 # -flto it won't be needed until after installation anyway.
1944 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1945 *) if test x"$enable_lto" = x"yes"; then
1946 AC_MSG_ERROR([LTO support is not enabled for this target.])
1951 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1952 # Build it unless LTO was explicitly disabled.
1954 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1959 AC_ARG_ENABLE(linker-plugin-configure-flags,
1960 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1961 [additional flags for configuring linker plugins @<:@none@:>@])],
1962 extra_linker_plugin_configure_flags=$enableval,
1963 extra_linker_plugin_configure_flags=)
1964 AC_SUBST(extra_linker_plugin_configure_flags)
1965 AC_ARG_ENABLE(linker-plugin-flags,
1966 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1967 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1968 extra_linker_plugin_flags=$enableval,
1969 extra_linker_plugin_flags=)
1970 AC_SUBST(extra_linker_plugin_flags)
1972 # Handle --enable-host-pie
1973 # If host PIE executables are the default (or must be forced on) for some host,
1974 # we must pass that configuration to the gcc directory.
1976 AC_ARG_ENABLE(host-pie,
1977 [AS_HELP_STRING([--enable-host-pie],
1978 [build position independent host executables])],
1979 [host_pie=$enableval
1982 if test x$host_pie != xyes ; then
1983 # for Darwin20+ this is required.
1984 AC_MSG_WARN([PIE executables are required for the configured host, host-pie setting ignored.])
1986 gcc_host_pie=--enable-host-pie
1992 # Default to PIE (mandatory for aarch64).
1994 gcc_host_pie=--enable-host-pie
2000 AC_SUBST(gcc_host_pie)
2002 # Enable --enable-host-shared.
2003 # Checked early to determine whether jit is an 'all' language
2004 AC_ARG_ENABLE(host-shared,
2005 [AS_HELP_STRING([--enable-host-shared],
2006 [build host code as shared libraries])],
2007 [host_shared=$enableval
2009 x86_64-*-darwin* | aarch64-*-darwin*)
2010 if test x$host_shared != xyes ; then
2011 # PIC is the default, and actually cannot be switched off.
2012 AC_MSG_WARN([PIC code is required for the configured host; host-shared setting ignored.])
2016 if test x$host_pie = xyes -a x$host_shared != xyes ; then
2017 AC_MSG_WARN([PIC code is required for PIE host executables host-shared setting ignored.])
2023 # 64B x86_64 and Aarch64 Darwin default to PIC.
2024 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
2025 # 32B and powerpc64 Darwin must use PIC to link PIE exes.
2026 *-*-darwin*) host_shared=$host_pie ;;
2030 AC_SUBST(host_shared)
2032 if test x$host_shared = xyes; then
2035 # Since host shared is the default for 64b Darwin, and also enabled for
2036 # host_pie, ensure that we present the PIE flag when host_pie is active.
2037 if test x$host_pie = xyes; then
2045 elif test x$host_pie = xyes; then
2053 # If we are building PIC/PIE host executables, and we are building dependent
2054 # libs (e.g. GMP) in-tree those libs need to be configured to generate PIC
2057 if test "$host_shared" = "yes" -o "$host_pie" = "yes"; then
2058 host_libs_picflag='--with-pic'
2060 AC_SUBST(host_libs_picflag)
2062 # By default, C and C++ are the only stage 1 languages.
2063 stage1_languages=,c,
2065 # Target libraries that we bootstrap.
2066 bootstrap_target_libs=,target-libgcc,
2068 # Figure out what language subdirectories are present.
2069 # Look if the user specified --enable-languages="..."; if not, use
2070 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2072 # NB: embedded tabs in this IF block -- do not untabify
2073 if test -d ${srcdir}/gcc; then
2074 if test x"${enable_languages+set}" != xset; then
2075 if test x"${LANGUAGES+set}" = xset; then
2076 enable_languages="${LANGUAGES}"
2077 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
2079 enable_languages=default
2082 if test x"${enable_languages}" = x ||
2083 test x"${enable_languages}" = xyes;
2085 echo configure.ac: --enable-languages needs at least one language argument 1>&2
2089 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2091 # 'f95' is the old name for the 'fortran' language. We issue a warning
2092 # and make the substitution.
2093 case ,${enable_languages}, in
2095 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
2096 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
2100 # If bootstrapping, C++ must be enabled.
2101 case ",$enable_languages,:$enable_bootstrap" in
2104 if test -f ${srcdir}/gcc/cp/config-lang.in; then
2105 enable_languages="${enable_languages},c++"
2107 AC_MSG_ERROR([bootstrapping requires c++ sources])
2112 # First scan to see if an enabled language requires some other language.
2113 # We assume that a given config-lang.in will list all the language
2114 # front ends it requires, even if some are required indirectly.
2115 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2116 case ${lang_frag} in
2118 # The odd quoting in the next line works around
2119 # an apparent bug in bash 1.12 on linux.
2120 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2122 # From the config-lang.in, get $language, $lang_requires, and
2123 # $lang_requires_boot_languages.
2126 lang_requires_boot_languages=
2127 # set srcdir during sourcing lang_frag to the gcc dir.
2128 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
2129 # polutes this shell
2130 saved_srcdir=${srcdir}
2131 srcdir=${srcdir}/gcc . ${lang_frag}
2132 srcdir=${saved_srcdir}
2133 for other in ${lang_requires} ${lang_requires_boot_languages}; do
2134 case ,${enable_languages}, in
2139 echo " \`$other' language required by \`$language'; enabling" 1>&2
2140 enable_languages="${enable_languages},${other}"
2144 for other in ${lang_requires_boot_languages} ; do
2145 if test "$other" != "c"; then
2146 case ,${enable_stage1_languages}, in
2151 case ,${enable_languages}, in
2153 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
2154 enable_stage1_languages="$enable_stage1_languages,${other}"
2165 new_enable_languages=,c,
2167 # If LTO is enabled, add the LTO front end.
2168 if test "$enable_lto" = "yes" ; then
2169 case ,${enable_languages}, in
2171 *) enable_languages="${enable_languages},lto" ;;
2173 if test "${build_lto_plugin}" = "yes" ; then
2174 configdirs="$configdirs lto-plugin"
2178 # If we're building an offloading compiler, add the LTO front end.
2179 if test x"$enable_as_accelerator_for" != x ; then
2180 case ,${enable_languages}, in
2182 *) enable_languages="${enable_languages},lto" ;;
2186 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
2187 potential_languages=,c,
2189 enabled_target_libs=
2190 disabled_target_libs=
2192 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2193 case ${lang_frag} in
2195 # The odd quoting in the next line works around
2196 # an apparent bug in bash 1.12 on linux.
2197 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2199 # From the config-lang.in, get $language, $target_libs,
2200 # $lang_dirs, $boot_language, and $build_by_default
2206 build_by_default=yes
2207 # set srcdir during sourcing. See above about save & restore
2208 saved_srcdir=${srcdir}
2209 srcdir=${srcdir}/gcc . ${lang_frag}
2210 srcdir=${saved_srcdir}
2211 if test x${language} = x; then
2212 echo "${lang_frag} doesn't set \$language." 1>&2
2216 if test "$language" = "c++"; then
2221 # C is always enabled, so no need to add it again
2222 if test "$language" != "c"; then
2223 case ,${enable_languages}, in
2225 # Language was explicitly selected; include it
2229 # All languages are enabled
2233 # 'default' was selected, select it if it is a default language
2234 add_this_lang=${build_by_default}
2239 # Disable languages that need other directories if these aren't available.
2240 for i in $subdir_requires; do
2241 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2242 case ${add_this_lang} in
2244 # Specifically requested language; tell them.
2245 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2248 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2249 add_this_lang=unsupported
2253 add_this_lang=unsupported
2258 # Disable Ada if no preexisting GNAT is available.
2259 case ${add_this_lang}:${language}:${have_gnat} in
2261 # Specifically requested language; tell them.
2262 AC_MSG_ERROR([GNAT is required to build $language])
2265 AC_MSG_WARN([GNAT is required to build $language])
2266 add_this_lang=unsupported
2270 add_this_lang=unsupported
2274 # Disable D if no preexisting GDC is available.
2275 case ${add_this_lang}:${language}:${have_gdc} in
2277 # Specifically requested language; tell them.
2278 AC_MSG_ERROR([GDC is required to build $language])
2281 AC_MSG_WARN([GDC is required to build $language])
2282 add_this_lang=unsupported
2286 add_this_lang=unsupported
2290 # Disable jit if -enable-host-shared not specified
2291 # but not if building for Mingw. All code in Windows
2292 # is position independent code (PIC).
2296 case ${add_this_lang}:${language}:${host_shared} in
2298 # PR jit/64780: explicitly specify --enable-host-shared
2300 Enabling language "jit" requires --enable-host-shared.
2302 --enable-host-shared typically slows the rest of the compiler down by
2303 a few %, so you must explicitly enable it.
2305 If you want to build both the jit and the regular compiler, it is often
2306 best to do this via two separate configure/builds, in separate
2307 directories, to avoid imposing the performance cost of
2308 --enable-host-shared on the regular compiler.])
2311 AC_MSG_WARN([--enable-host-shared required to build $language])
2312 add_this_lang=unsupported
2316 add_this_lang=unsupported
2322 # Disable a language that is unsupported by the target.
2323 case "${add_this_lang}: $unsupported_languages " in
2327 AC_MSG_WARN([${language} not supported for this target])
2328 add_this_lang=unsupported
2332 case $add_this_lang in
2334 # Remove language-dependent dirs.
2335 disabled_target_libs="$disabled_target_libs $target_libs"
2336 noconfigdirs="$noconfigdirs $lang_dirs"
2339 # Remove language-dependent dirs; still show language as supported.
2340 disabled_target_libs="$disabled_target_libs $target_libs"
2341 noconfigdirs="$noconfigdirs $lang_dirs"
2342 potential_languages="${potential_languages}${language},"
2345 new_enable_languages="${new_enable_languages}${language},"
2346 potential_languages="${potential_languages}${language},"
2347 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2348 enabled_target_libs="$enabled_target_libs $target_libs"
2349 case "${boot_language}:,$enable_stage1_languages," in
2350 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2351 # Add to (comma-separated) list of stage 1 languages.
2352 case ",$stage1_languages," in
2353 *,$language,* | ,yes, | ,all,) ;;
2354 *) stage1_languages="${stage1_languages}${language}," ;;
2356 # We need to bootstrap any supporting libraries.
2357 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2366 # Add target libraries which are only needed for disabled languages
2368 if test -n "$disabled_target_libs"; then
2369 for dir in $disabled_target_libs; do
2370 case " $enabled_target_libs " in
2372 *) noconfigdirs="$noconfigdirs $dir" ;;
2377 AC_ARG_ENABLE(stage1-languages,
2378 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2379 [choose additional languages to build during
2380 stage1. Mostly useful for compiler development])],
2381 [case ,${enable_stage1_languages}, in
2383 # Set it to something that will have no effect in the loop below
2384 enable_stage1_languages=c ;;
2386 enable_stage1_languages=`echo $new_enable_languages | \
2387 sed -e "s/^,//" -e "s/,$//" ` ;;
2389 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2390 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2393 # Add "good" languages from enable_stage1_languages to stage1_languages,
2394 # while "bad" languages go in missing_languages. Leave no duplicates.
2395 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2396 case $potential_languages in
2398 case $stage1_languages in
2400 *) stage1_languages="$stage1_languages$i," ;;
2403 case $missing_languages in
2405 *) missing_languages="$missing_languages$i," ;;
2410 # Remove leading/trailing commas that were added for simplicity
2411 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2412 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2413 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2414 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2416 if test "x$missing_languages" != x; then
2418 The following requested languages could not be built: ${missing_languages}
2419 Supported languages are: ${potential_languages}])
2421 if test "x$new_enable_languages" != "x$enable_languages"; then
2422 echo The following languages will be built: ${new_enable_languages}
2423 enable_languages="$new_enable_languages"
2426 AC_SUBST(stage1_languages)
2427 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2430 # Handle --disable-<component> generically.
2431 for dir in $configdirs $build_configdirs $target_configdirs ; do
2432 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2433 varname=`echo $dirname | sed -e s/+/_/g`
2434 if eval test x\${enable_${varname}} "=" xno ; then
2435 noconfigdirs="$noconfigdirs $dir"
2439 # Check for Boehm's garbage collector
2440 AC_ARG_ENABLE(objc-gc,
2441 [AS_HELP_STRING([--enable-objc-gc],
2442 [enable use of Boehm's garbage collector with the
2443 GNU Objective-C runtime])])
2444 AC_ARG_WITH([target-bdw-gc],
2445 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2446 [specify prefix directory for installed bdw-gc package.
2447 Equivalent to --with-target-bdw-gc-include=PATH/include
2448 plus --with-target-bdw-gc-lib=PATH/lib])])
2449 AC_ARG_WITH([target-bdw-gc-include],
2450 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2451 [specify directories for installed bdw-gc include files])])
2452 AC_ARG_WITH([target-bdw-gc-lib],
2453 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2454 [specify directories for installed bdw-gc library])])
2456 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2457 AC_MSG_CHECKING([for bdw garbage collector])
2458 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2459 dnl no bdw-gw options, assume default locations
2460 AC_MSG_RESULT([using bdw-gc in default locations])
2462 dnl bdw-gw options, first error checking, complete checking in libobjc
2463 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2464 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2465 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2466 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2468 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2473 # Disable libitm, libsanitizer, libvtv if we're not building C++
2474 case ,${enable_languages}, in
2476 # Disable libitm, libsanitizer if we're not building libstdc++
2477 case "${noconfigdirs}" in
2478 *target-libstdc++-v3*)
2479 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2485 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer target-libvtv"
2489 case ,${enable_languages}, in
2491 case " ${noconfigdirs} " in
2492 *\ target-libstdc++-v3\ *)
2493 # Disable target libgrust if we're not building target libstdc++.
2494 noconfigdirs="$noconfigdirs target-libgrust"
2500 # If gcc/ is not in the source tree then we'll not be building a
2501 # target compiler, assume in that case we don't want to build any
2502 # target libraries or tools.
2504 # This was added primarily for the benefit for binutils-gdb who reuse
2505 # this configure script, but don't always have target tools available.
2506 if test ! -d ${srcdir}/gcc; then
2507 skipdirs="${skipdirs} ${target_configdirs}"
2510 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2511 # $build_configdirs and $target_configdirs.
2512 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2515 for dir in . $skipdirs $noconfigdirs ; do
2516 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2517 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2518 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2519 if test -r $srcdir/$dirname/configure ; then
2520 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2523 notsupp="$notsupp $dir"
2527 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2528 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2529 if test -r $srcdir/$dirname/configure ; then
2530 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2533 notsupp="$notsupp $dir"
2537 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2538 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2539 if test -r $srcdir/$dirname/configure ; then
2540 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2543 notsupp="$notsupp $dir"
2549 # Quietly strip out all directories which aren't configurable in this tree.
2550 # This relies on all configurable subdirectories being autoconfiscated, which
2552 build_configdirs_all="$build_configdirs"
2554 for i in ${build_configdirs_all} ; do
2555 j=`echo $i | sed -e s/build-//g`
2556 if test -f ${srcdir}/$j/configure ; then
2557 build_configdirs="${build_configdirs} $i"
2561 configdirs_all="$configdirs"
2563 for i in ${configdirs_all} ; do
2564 if test -f ${srcdir}/$i/configure ; then
2565 configdirs="${configdirs} $i"
2569 target_configdirs_all="$target_configdirs"
2571 for i in ${target_configdirs_all} ; do
2572 j=`echo $i | sed -e s/target-//g`
2573 if test -f ${srcdir}/$j/configure ; then
2574 target_configdirs="${target_configdirs} $i"
2578 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2579 # so we have to add it after the preceding checks.
2580 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2582 case " $configdirs " in
2584 # If we can build libiberty, we can also build libiberty-linker-plugin.
2585 configdirs="$configdirs libiberty-linker-plugin"
2586 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2587 --with-libiberty=../libiberty-linker-plugin";;
2589 AC_MSG_ERROR([libiberty missing]);;
2593 # Sometimes we have special requirements for the host libiberty.
2594 extra_host_libiberty_configure_flags=
2595 case " $configdirs " in
2596 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
2597 # When these are to be built as shared libraries, the same applies to
2599 extra_host_libiberty_configure_flags=--enable-shared
2602 AC_SUBST(extra_host_libiberty_configure_flags)
2604 # Sometimes we have special requirements for the host zlib.
2605 extra_host_zlib_configure_flags=
2606 case " $configdirs " in
2608 # When bfd is to be built as a shared library, the same applies to
2610 if test "$enable_shared" = "yes"; then
2611 extra_host_zlib_configure_flags=--enable-host-shared
2615 AC_SUBST(extra_host_zlib_configure_flags)
2617 # Produce a warning message for the subdirs we can't configure.
2618 # This isn't especially interesting in the Cygnus tree, but in the individual
2619 # FSF releases, it's important to let people know when their machine isn't
2620 # supported by the one or two programs in a package.
2622 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2623 # If $appdirs is non-empty, at least one of those directories must still
2624 # be configured, or we error out. (E.g., if the gas release supports a
2625 # specified target in some subdirs but not the gas subdir, we shouldn't
2626 # pretend that all is well.)
2627 if test -n "$appdirs" ; then
2628 for dir in $appdirs ; do
2629 if test -r $dir/Makefile.in ; then
2630 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2634 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2640 if test -n "$appdirs" ; then
2641 echo "*** This configuration is not supported by this package." 1>&2
2645 # Okay, some application will build, or we don't care to check. Still
2646 # notify of subdirs not getting built.
2647 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2648 echo " ${notsupp}" 1>&2
2649 echo " (Any other directories should still work fine.)" 1>&2
2657 # To find our prefix, in gcc_cv_tool_prefix.
2662 AC_ARG_WITH([build-sysroot],
2663 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2664 [use sysroot as the system root during the build])],
2665 [if test x"$withval" != x ; then
2666 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2668 [SYSROOT_CFLAGS_FOR_TARGET=])
2669 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2671 AC_ARG_WITH([debug-prefix-map],
2672 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2673 [map A to B, C to D ... in debug information])],
2674 [if test x"$withval" != x; then
2675 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2676 for debug_map in $withval; do
2677 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2680 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2681 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2683 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2684 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2685 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2686 # We want to ensure that TARGET libraries (which we know are built with
2687 # gcc) are built with "-O2 -g", so include those options when setting
2688 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2689 if test "x$CFLAGS_FOR_TARGET" = x; then
2690 if test "x${is_cross_compiler}" = xyes; then
2691 CFLAGS_FOR_TARGET="-g -O2"
2693 CFLAGS_FOR_TARGET=$CFLAGS
2696 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2699 *" -g "* | *" -g3 "*) ;;
2700 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2704 AC_SUBST(CFLAGS_FOR_TARGET)
2706 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2707 if test "x${is_cross_compiler}" = xyes; then
2708 CXXFLAGS_FOR_TARGET="-g -O2"
2710 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2711 case " $CXXFLAGS " in
2713 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2715 case " $CXXFLAGS " in
2716 *" -g "* | *" -g3 "*) ;;
2717 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2721 AC_SUBST(CXXFLAGS_FOR_TARGET)
2723 AC_SUBST(LDFLAGS_FOR_TARGET)
2725 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2726 # the named directory are copied to $(tooldir)/sys-include.
2727 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2728 if test x${is_cross_compiler} = xno ; then
2729 echo 1>&2 '***' --with-headers is only supported when cross compiling
2732 if test x"${with_headers}" != xyes ; then
2733 x=${gcc_cv_tool_prefix}
2734 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2738 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2739 # the name directories are copied to $(tooldir)/lib. Multiple directories
2741 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2742 if test x${is_cross_compiler} = xno ; then
2743 echo 1>&2 '***' --with-libs is only supported when cross compiling
2746 if test x"${with_libs}" != xyes ; then
2747 # Copy the libraries in reverse order, so that files in the first named
2748 # library override files in subsequent libraries.
2749 x=${gcc_cv_tool_prefix}
2750 for l in ${with_libs}; do
2751 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2756 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2758 # This is done by determining whether or not the appropriate directory
2759 # is available, and by checking whether or not specific configurations
2760 # have requested that this magic not happen.
2762 # The command line options always override the explicit settings in
2763 # configure.ac, and the settings in configure.ac override this magic.
2765 # If the default for a toolchain is to use GNU as and ld, and you don't
2766 # want to do that, then you should use the --without-gnu-as and
2767 # --without-gnu-ld options for the configure script. Similarly, if
2768 # the default is to use the included zlib and you don't want to do that,
2769 # you should use the --with-system-zlib option for the configure script.
2771 if test x${use_gnu_as} = x &&
2772 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2774 extra_host_args="$extra_host_args --with-gnu-as"
2777 if test x${use_gnu_ld} = x &&
2778 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2780 extra_host_args="$extra_host_args --with-gnu-ld"
2783 if test x${use_included_zlib} = x &&
2784 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2787 with_system_zlib=yes
2788 extra_host_args="$extra_host_args --with-system-zlib"
2791 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2792 # can detect this case.
2794 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2796 extra_host_args="$extra_host_args --with-newlib"
2799 # Handle ${copy_dirs}
2800 set fnord ${copy_dirs}
2802 while test $# != 0 ; do
2803 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2806 echo Copying $1 to $2
2808 # Use the install script to create the directory and all required
2809 # parent directories.
2810 if test -d $2 ; then
2814 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2817 # Copy the directory, assuming we have tar.
2818 # FIXME: Should we use B in the second tar? Not all systems support it.
2819 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2821 # It is the responsibility of the user to correctly adjust all
2822 # symlinks. If somebody can figure out how to handle them correctly
2823 # here, feel free to add the code.
2830 # Determine a target-dependent exec_prefix that the installed
2831 # gcc will search in. Keep this list sorted by triplet, with
2832 # the *-*-osname triplets last.
2835 i[[34567]]86-pc-msdosdjgpp*)
2836 md_exec_prefix=/dev/env/DJDIR/bin
2841 md_exec_prefix=/usr/ccs/bin
2845 extra_arflags_for_target=
2846 extra_nmflags_for_target=
2847 extra_ranlibflags_for_target=
2848 target_makefile_frag=/dev/null
2851 target_makefile_frag="config/mt-spu"
2853 loongarch*-*linux* | loongarch*-*gnu*)
2854 target_makefile_frag="config/mt-loongarch-gnu"
2857 target_makefile_frag="config/mt-loongarch-elf"
2859 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2860 target_makefile_frag="config/mt-sde"
2862 mipsisa*-*-elfoabi*)
2863 target_makefile_frag="config/mt-mips-elfoabi"
2865 mips*-*-*linux* | mips*-*-gnu*)
2866 target_makefile_frag="config/mt-mips-gnu"
2869 target_makefile_frag="config/mt-nios2-elf"
2872 target_makefile_frag="config/mt-android"
2874 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2875 target_makefile_frag="config/mt-gnu"
2877 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2878 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2879 # commands to handle both 32-bit and 64-bit objects. These flags are
2880 # harmless if we're using GNU nm or ar.
2881 extra_arflags_for_target=" -X32_64"
2882 extra_nmflags_for_target=" -B -X32_64"
2886 alphaieee_frag=/dev/null
2889 # This just makes sure to use the -mieee option to build target libs.
2890 # This should probably be set individually by each library.
2891 alphaieee_frag="config/mt-alphaieee"
2895 # If --enable-target-optspace always use -Os instead of -O2 to build
2896 # the target libraries, similarly if it is not specified, use -Os
2897 # on selected platforms.
2898 ospace_frag=/dev/null
2899 case "${enable_target_optspace}:${target}" in
2901 ospace_frag="config/mt-ospace"
2904 ospace_frag="config/mt-d30v"
2906 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2907 ospace_frag="config/mt-ospace"
2912 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2916 # Some systems (e.g., one of the i386-aix systems the gas testers are
2917 # using) don't handle "\$" correctly, so don't use it here.
2918 tooldir='${exec_prefix}'/${target_noncanonical}
2919 build_tooldir=${tooldir}
2921 # Create a .gdbinit file which runs the one in srcdir
2922 # and tells GDB to look there for source files.
2924 if test -r ${srcdir}/.gdbinit ; then
2927 *) cat > ./.gdbinit <<EOF
2931 source ${srcdir}/.gdbinit
2937 # Make sure that the compiler is able to generate an executable. If it
2938 # can't, we are probably in trouble. We don't care whether we can run the
2939 # executable--we might be using a cross compiler--we only care whether it
2940 # can be created. At this point the main configure script has set CC.
2942 echo "int main () { return 0; }" > conftest.c
2943 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2944 if test $? = 0 ; then
2945 if test -s conftest || test -s conftest.exe ; then
2951 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2952 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2959 # Decide which environment variable is used to find dynamic libraries.
2961 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2962 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2963 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2964 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2967 # On systems where the dynamic library environment variable is PATH,
2968 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2969 # built executables to PATH.
2970 if test "$RPATH_ENVVAR" = PATH; then
2971 GCC_SHLIB_SUBDIR=/shlib
2976 # Adjust the toplevel makefile according to whether bootstrap was selected.
2977 case $enable_bootstrap in
2979 bootstrap_suffix=bootstrap
2980 BUILD_CONFIG=bootstrap-debug
2983 bootstrap_suffix=no-bootstrap
2988 AC_MSG_CHECKING(for default BUILD_CONFIG)
2990 AC_ARG_WITH([build-config],
2991 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2992 [use config/NAME.mk build configuration])],
2993 [case $with_build_config in
2994 yes) with_build_config= ;;
2995 no) with_build_config= BUILD_CONFIG= ;;
2998 if test "x${with_build_config}" != x; then
2999 BUILD_CONFIG=$with_build_config
3001 case $BUILD_CONFIG in
3003 if echo "int f (void) { return 0; }" > conftest.c &&
3004 ${CC} -c conftest.c &&
3005 mv conftest.o conftest.o.g0 &&
3006 ${CC} -c -g conftest.c &&
3007 mv conftest.o conftest.o.g &&
3008 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
3013 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
3017 AC_MSG_RESULT($BUILD_CONFIG)
3018 AC_SUBST(BUILD_CONFIG)
3020 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
3021 AC_MSG_CHECKING([for --enable-vtable-verify])
3022 AC_ARG_ENABLE(vtable-verify,
3023 [AS_HELP_STRING([--enable-vtable-verify],
3024 [Enable vtable verification feature])],
3025 [case "$enableval" in
3026 yes) enable_vtable_verify=yes ;;
3027 no) enable_vtable_verify=no ;;
3028 *) enable_vtable_verify=no;;
3030 [enable_vtable_verify=no])
3031 AC_MSG_RESULT($enable_vtable_verify)
3033 # Record target_configdirs and the configure arguments for target and
3034 # build configuration in Makefile.
3035 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
3036 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
3037 bootstrap_fixincludes=no
3039 # If we are building libgomp, bootstrap it.
3040 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
3041 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
3044 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
3045 # or bootstrap-ubsan, bootstrap it.
3046 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
3047 case "$BUILD_CONFIG" in
3048 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
3049 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
3050 bootstrap_fixincludes=yes
3055 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
3056 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
3057 test "$enable_vtable_verify" != no; then
3058 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
3061 # If we are building libatomic and the list of enabled languages includes the
3062 # D frontend, bootstrap it.
3063 if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
3064 case ,${enable_languages}, in
3066 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
3071 # Determine whether gdb needs tk/tcl or not.
3072 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
3073 # and in that case we want gdb to be built without tk. Ugh!
3074 # In fact I believe gdb is the *only* package directly dependent on tk,
3075 # so we should be able to put the 'maybe's in unconditionally and
3076 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
3077 # 100% sure that that's safe though.
3079 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
3080 case "$enable_gdbtk" in
3084 GDB_TK="${gdb_tk}" ;;
3086 # Only add the dependency on gdbtk when GDBtk is part of the gdb
3087 # distro. Eventually someone will fix this and move Insight, nee
3088 # gdbtk to a separate directory.
3089 if test -d ${srcdir}/gdb/gdbtk ; then
3096 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
3097 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
3099 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
3100 # else does, only include them if one of these is built. The Makefile
3101 # provides the ordering, so it's enough here to add to the list.
3102 case " ${configdirs} " in
3104 configdirs="${configdirs} gnulib gdbsupport"
3107 configdirs="${configdirs} gnulib gdbsupport"
3110 configdirs="${configdirs} gnulib"
3114 # Strip out unwanted targets.
3116 # While at that, we remove Makefiles if we were started for recursive
3117 # configuration, so that the top-level Makefile reconfigures them,
3118 # like we used to do when configure itself was recursive.
3120 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
3121 # but now we're fixing up the Makefile ourselves with the additional
3122 # commands passed to AC_CONFIG_FILES. Use separate variables
3123 # extrasub-{build,host,target} not because there is any reason to split
3124 # the substitutions up that way, but only to remain below the limit of
3125 # 99 commands in a script, for HP-UX sed.
3127 # Do not nest @if/@endif or @unless/@endunless pairs, because
3128 # configure will not warn you at all.
3130 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
3131 yes:yes:*\ gold\ *:*,c++,*) ;;
3132 yes:yes:*\ gold\ *:*)
3133 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
3138 for module in ${build_configdirs} ; do
3139 if test -z "${no_recursion}" \
3140 && test -f ${build_subdir}/${module}/Makefile; then
3141 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
3142 rm -f ${build_subdir}/${module}/Makefile
3144 extrasub_build="$extrasub_build
3145 /^@if build-$module\$/d
3146 /^@endif build-$module\$/d
3147 /^@unless build-$module\$/,/^@endunless build-$module\$/d
3148 /^@if build-$module-$bootstrap_suffix\$/d
3149 /^@endif build-$module-$bootstrap_suffix\$/d
3150 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
3153 for module in ${configdirs} ; do
3154 if test -z "${no_recursion}"; then
3155 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
3156 if test -f ${file}; then
3157 echo 1>&2 "*** removing ${file} to force reconfigure"
3162 case ${module},${bootstrap_fixincludes} in
3163 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
3164 *) host_bootstrap_suffix=$bootstrap_suffix ;;
3166 extrasub_host="$extrasub_host
3168 /^@endif $module\$/d
3169 /^@unless $module\$/,/^@endunless $module\$/d
3170 /^@if $module-$host_bootstrap_suffix\$/d
3171 /^@endif $module-$host_bootstrap_suffix\$/d
3172 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
3175 for module in ${target_configdirs} ; do
3176 if test -z "${no_recursion}" \
3177 && test -f ${target_subdir}/${module}/Makefile; then
3178 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
3179 rm -f ${target_subdir}/${module}/Makefile
3182 # We only bootstrap target libraries listed in bootstrap_target_libs.
3183 case $bootstrap_target_libs in
3184 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
3185 *) target_bootstrap_suffix=no-bootstrap ;;
3188 extrasub_target="$extrasub_target
3189 /^@if target-$module\$/d
3190 /^@endif target-$module\$/d
3191 /^@unless target-$module\$/,/^@endunless target-$module\$/d
3192 /^@if target-$module-$target_bootstrap_suffix\$/d
3193 /^@endif target-$module-$target_bootstrap_suffix\$/d
3194 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
3197 # Do the final fixup along with target modules.
3198 extrasub_target="$extrasub_target
3203 if test "$enable_pgo_build" != "no"; then
3204 extrasub_build="$extrasub_build
3206 /^@endif pgo-build\$/d"
3209 # Create the serialization dependencies. This uses a temporary file.
3211 AC_ARG_ENABLE([serial-configure],
3212 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3213 [force sequential configuration of
3214 sub-packages for the host, target or build
3215 machine, or all sub-packages])])
3217 case ${enable_serial_configure} in
3219 enable_serial_build_configure=yes
3220 enable_serial_host_configure=yes
3221 enable_serial_target_configure=yes
3225 # These force 'configure's to be done one at a time, to avoid problems
3226 # with contention over a shared config.cache.
3228 if test "x${enable_serial_build_configure}" = xyes || test "x${enable_serial_host_configure}" = xyes || test "x${enable_serial_target_configure}" = xyes; then
3229 echo '# serdep.tmp' > serdep.tmp
3232 test "x${enable_serial_build_configure}" = xyes &&
3233 for item in ${build_configdirs} ; do
3236 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
3241 test "x${enable_serial_host_configure}" = xyes &&
3242 for item in ${configdirs} ; do
3245 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
3250 test "x${enable_serial_target_configure}" = xyes &&
3251 for item in ${target_configdirs} ; do
3254 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
3258 serialization_dependencies=serdep.tmp
3259 AC_SUBST_FILE(serialization_dependencies)
3261 # Base args. Strip norecursion, cache-file, srcdir, host, build,
3262 # target, nonopt, and variable assignments. These are the ones we
3263 # might not want to pass down to subconfigures. The exception being
3264 # --cache-file=/dev/null, which is used to turn off the use of cache
3265 # files altogether, and which should be passed on to subconfigures.
3266 # Also strip program-prefix, program-suffix, and program-transform-name,
3267 # so that we can pass down a consistent program-transform-name.
3273 eval "set -- $ac_configure_args"
3276 if test X"$skip_next" = X"yes"; then
3280 if test X"$keep_next" = X"yes"; then
3283 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3285 hbaseargs="$hbaseargs '$ac_arg'"
3286 bbaseargs="$bbaseargs '$ac_arg'"
3287 tbaseargs="$tbaseargs '$ac_arg'"
3292 # Handle separated arguments. Based on the logic generated by
3295 *=* | --config-cache | -C | -disable-* | --disable-* \
3296 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3297 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3298 | -with-* | --with-* | -without-* | --without-* | --x)
3313 --with-* | --without-*)
3314 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3318 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3321 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3324 lib=`echo "$libopt" | sed 's,[-_]prefix$,,'`
3327 lib=`echo "$libopt" | sed 's,[-_]type$,,'`
3336 mpc | mpfr | gmp | isl)
3337 # If we're processing --with-$lib, --with-$lib-include or
3338 # --with-$lib-lib, for one of the libs above, and target is
3339 # different from host, don't pass the current argument to any
3340 # target library's configure.
3341 if test x$is_cross_compiler = xyes; then
3346 # We don't want libintl (and co.) in anything but the host arguments.
3355 --cache-file=/dev/null | \
3356 -cache-file=/dev/null )
3357 # Handled here to avoid the test to skip args below.
3358 hbaseargs="$hbaseargs '$ac_arg'"
3359 bbaseargs="$bbaseargs '$ac_arg'"
3360 tbaseargs="$tbaseargs '$ac_arg'"
3361 # Assert: $separate_arg should always be no.
3362 keep_next=$separate_arg
3378 -program-prefix* | \
3379 -program-suffix* | \
3380 -program-transform-name* )
3381 skip_next=$separate_arg
3385 # An option. Add it.
3388 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3390 hbaseargs="$hbaseargs '$ac_arg'"
3391 if test X"$skip_barg" = Xno; then
3392 bbaseargs="$bbaseargs '$ac_arg'"
3394 if test X"$skip_targ" = Xno; then
3395 tbaseargs="$tbaseargs '$ac_arg'"
3397 keep_next=$separate_arg
3400 # Either a variable assignment, or a nonopt (triplet). Don't
3401 # pass it down; let the Makefile handle this.
3406 # Remove the initial space we just introduced and, as these will be
3407 # expanded by make, quote '$'.
3408 hbaseargs=`echo "x$hbaseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3409 bbaseargs=`echo "x$bbaseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3411 # Add in --program-transform-name, after --program-prefix and
3412 # --program-suffix have been applied to it. Autoconf has already
3413 # doubled dollar signs and backslashes in program_transform_name; we want
3414 # the backslashes un-doubled, and then the entire thing wrapped in single
3415 # quotes, because this will be expanded first by make and then by the shell.
3416 # Also, because we want to override the logic in subdir configure scripts to
3417 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3418 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3419 ${program_transform_name}
3421 gcc_transform_name=`cat conftestsed.out`
3422 rm -f conftestsed.out
3423 hbaseargs="$hbaseargs --program-transform-name='${gcc_transform_name}'"
3424 bbaseargs="$bbaseargs --program-transform-name='${gcc_transform_name}'"
3425 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3426 if test "$silent" = yes; then
3427 bbaseargs="$bbaseargs --silent"
3428 hbaseargs="$hbaseargs --silent"
3429 tbaseargs="$tbaseargs --silent"
3432 bbaseargs="$bbaseargs --disable-option-checking"
3433 hbaseargs="$hbaseargs --disable-option-checking"
3434 tbaseargs="$tbaseargs --disable-option-checking"
3436 if test "$enable_year2038" = no; then
3437 bbaseargs="$bbaseargs --disable-year2038"
3438 hbaseargs="$hbaseargs --disable-year2038"
3439 tbaseargs="$tbaseargs --disable-year2038"
3442 # Record and document user additions to sub configure arguments.
3443 AC_ARG_VAR([build_configargs],
3444 [additional configure arguments for build directories])
3445 AC_ARG_VAR([host_configargs],
3446 [additional configure arguments for host directories])
3447 AC_ARG_VAR([target_configargs],
3448 [additional configure arguments for target directories])
3450 # For the build-side libraries, we just need to pretend we're native,
3451 # and not use the same cache file. Multilibs are neither needed nor
3452 # desired. We can't even use the same cache file for all build-side
3453 # libraries, as they're compiled differently; some with C, some with
3454 # C++ or with different feature-enabling options.
3455 build_configargs="$build_configargs --cache-file=./config.cache ${bbaseargs}"
3457 # For host modules, accept cache file option, or specification as blank.
3458 case "${cache_file}" in
3460 cache_file_option="" ;;
3461 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3462 cache_file_option="--cache-file=${cache_file}" ;;
3464 cache_file_option="--cache-file=../${cache_file}" ;;
3467 # Host dirs don't like to share a cache file either, horribly enough.
3468 # This seems to be due to autoconf 2.5x stupidity.
3469 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${hbaseargs}"
3471 target_configargs="$target_configargs ${tbaseargs}"
3473 # Passing a --with-cross-host argument lets the target libraries know
3474 # whether they are being built with a cross-compiler or being built
3475 # native. However, it would be better to use other mechanisms to make the
3476 # sorts of decisions they want to make on this basis. Please consider
3477 # this option to be deprecated. FIXME.
3478 if test x${is_cross_compiler} = xyes ; then
3479 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3482 # Special user-friendly check for native x86_64-linux build, if
3483 # multilib is not explicitly enabled.
3484 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3485 x86_64-*linux*:yes:$build:$build:)
3486 # Make sure we have a development environment that handles 32-bit
3488 echo "int main () { return 0; }" > conftest.c
3489 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3490 if test $? = 0 ; then
3491 if test -s conftest || test -s conftest.exe ; then
3496 if test x${dev64} != xyes ; then
3497 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.])
3502 # Default to --enable-multilib.
3503 if test x${enable_multilib} = x ; then
3504 target_configargs="--enable-multilib ${target_configargs}"
3507 # Pass --with-newlib if appropriate. Note that target_configdirs has
3508 # changed from the earlier setting of with_newlib.
3509 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3510 target_configargs="--with-newlib ${target_configargs}"
3513 # Different target subdirs use different values of certain variables
3514 # (notably CXX). Worse, multilibs use *lots* of different values.
3515 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3516 # it doesn't automatically accept command-line overrides of them.
3517 # This means it's not safe for target subdirs to share a cache file,
3518 # which is disgusting, but there you have it. Hopefully this can be
3519 # fixed in future. It's still worthwhile to use a cache file for each
3520 # directory. I think.
3522 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3523 # We need to pass --target, as newer autoconf's requires consistency
3524 # for target_alias and gcc doesn't manage it consistently.
3525 target_configargs="--cache-file=./config.cache ${target_configargs}"
3528 case " $target_configdirs " in
3530 case " $target_configargs " in
3531 *" --with-newlib "*)
3534 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3538 # If we're not building GCC, don't discard standard headers.
3539 if test -d ${srcdir}/gcc; then
3540 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3542 if test "${build}" != "${host}"; then
3543 # On Canadian crosses, CC_FOR_TARGET will have already been set
3544 # by `configure', so we won't have an opportunity to add -Bgcc/
3545 # to it. This is right: we don't want to search that directory
3546 # for binaries, but we want the header files in there, so add
3548 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3550 # Someone might think of using the pre-installed headers on
3551 # Canadian crosses, in case the installed compiler is not fully
3552 # compatible with the compiler being built. In this case, it
3553 # would be better to flag an error than risking having
3554 # incompatible object files being constructed. We can't
3555 # guarantee that an error will be flagged, but let's hope the
3556 # compiler will do it, when presented with incompatible header
3561 case "${target}-${is_cross_compiler}" in
3562 i[[3456789]]86-*-linux*-no)
3563 # Here host == target, so we don't need to build gcc,
3564 # so we don't want to discard standard headers.
3565 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3568 # If we're building newlib, use its generic headers last, but search
3569 # for any libc-related directories first (so make it the last -B
3571 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3573 # If we're building libgloss, find the startup file, simulator library
3574 # and linker script.
3575 case " $target_configdirs " in
3577 # Look for startup file, simulator library and maybe linker script.
3578 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3579 # Look for libnosys.a in case the target needs it.
3580 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3581 # Most targets have the linker script in the source directory.
3582 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3593 x86_64-*mingw* | *-w64-mingw*)
3594 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3595 # however, use a symlink named 'mingw' in ${prefix} .
3596 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3599 # MinGW can't be handled as Cygwin above since it does not use newlib.
3600 FLAGS_FOR_TARGET=$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'
3604 # Allow the user to override the flags for
3605 # our build compiler if desired.
3606 if test x"${build}" = x"${host}" ; then
3607 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3608 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
3609 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3610 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3613 # On Canadian crosses, we'll be searching the right directories for
3614 # the previously-installed cross compiler, so don't bother to add
3615 # flags for directories within the install tree of the compiler
3616 # being built; programs in there won't even run.
3617 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3618 # Search for pre-installed headers if nothing else fits.
3619 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3622 if test "x${use_gnu_ld}" = x &&
3623 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3624 # Arrange for us to find uninstalled linker scripts.
3625 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3628 # Search for other target-specific linker scripts and such.
3631 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3633 # The VxWorks support for shared libraries is getting in
3634 # incrementally. Make sure it doesn't get activated implicitly:
3636 if test "${enable_shared-unset}" = unset ; then
3638 # So the build of libraries knows ...
3639 target_configargs="${target_configargs} --disable-shared"
3641 host_configargs="${host_configargs} --disable-shared"
3646 # Makefile fragments.
3647 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3649 eval fragval=\$$frag
3650 if test $fragval != /dev/null; then
3651 eval $frag=${srcdir}/$fragval
3654 AC_SUBST_FILE(host_makefile_frag)
3655 AC_SUBST_FILE(target_makefile_frag)
3656 AC_SUBST_FILE(alphaieee_frag)
3657 AC_SUBST_FILE(ospace_frag)
3659 # Miscellanea: directories, flags, etc.
3660 AC_SUBST(RPATH_ENVVAR)
3661 AC_SUBST(GCC_SHLIB_SUBDIR)
3663 AC_SUBST(build_tooldir)
3664 AC_SUBST(CONFIGURE_GDB_TK)
3666 AC_SUBST(INSTALL_GDB_TK)
3668 # Build module lists & subconfigure args.
3669 AC_SUBST(build_configargs)
3670 AC_SUBST(build_configdirs)
3672 # Host module lists & subconfigure args.
3673 AC_SUBST(host_configargs)
3674 AC_SUBST(configdirs)
3675 AC_SUBST(target_configdirs)
3677 # Target module lists & subconfigure args.
3678 AC_SUBST(target_configargs)
3682 AC_SUBST(AR_FOR_BUILD)
3683 AC_SUBST(AS_FOR_BUILD)
3684 AC_SUBST(CC_FOR_BUILD)
3685 AC_SUBST(CFLAGS_FOR_BUILD)
3686 AC_SUBST(CPP_FOR_BUILD)
3687 AC_SUBST(CPPFLAGS_FOR_BUILD)
3688 AC_SUBST(CXXFLAGS_FOR_BUILD)
3689 AC_SUBST(CXX_FOR_BUILD)
3690 AC_SUBST(DLLTOOL_FOR_BUILD)
3691 AC_SUBST(DSYMUTIL_FOR_BUILD)
3692 AC_SUBST(GFORTRAN_FOR_BUILD)
3693 AC_SUBST(GOC_FOR_BUILD)
3694 AC_SUBST(GDC_FOR_BUILD)
3695 AC_SUBST(LDFLAGS_FOR_BUILD)
3696 AC_SUBST(LD_FOR_BUILD)
3697 AC_SUBST(NM_FOR_BUILD)
3698 AC_SUBST(RANLIB_FOR_BUILD)
3699 AC_SUBST(WINDMC_FOR_BUILD)
3700 AC_SUBST(WINDRES_FOR_BUILD)
3702 # Generate default definitions for YACC, M4, LEX and other programs that run
3703 # on the build machine. These are used if the Makefile can't locate these
3704 # programs in objdir.
3705 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3707 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3708 case " $build_configdirs " in
3709 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3712 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3713 case " $build_configdirs " in
3714 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3717 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3718 case " $build_configdirs " in
3719 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3722 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3723 case " $build_configdirs " in
3724 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3725 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3728 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3729 case " $build_configdirs " in
3730 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3733 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3734 case " $build_configdirs " in
3735 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3738 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3739 # higher, else we use the "missing" dummy.
3740 if ${MAKEINFO} --version \
3741 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3744 MAKEINFO="$MISSING makeinfo"
3750 # FIXME: expect and dejagnu may become build tools?
3752 AC_CHECK_PROGS(EXPECT, expect, expect)
3753 case " $configdirs " in
3755 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3759 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3760 case " $configdirs " in
3762 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3768 NCN_STRICT_CHECK_TOOLS(AR, ar)
3769 NCN_STRICT_CHECK_TOOLS(AS, as)
3770 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3771 NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
3772 NCN_STRICT_CHECK_TOOLS(LD, ld)
3773 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3774 NCN_STRICT_CHECK_TOOLS(NM, nm)
3775 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3776 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3777 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3778 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3779 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3780 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3781 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3782 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3789 GDCFLAGS=${GDCFLAGS-${CFLAGS}}
3790 AC_SUBST(PKG_CONFIG_PATH)
3792 GCC_PLUGIN_OPTION(PLUGIN_OPTION)
3794 RANLIB_PLUGIN_OPTION=
3795 if test -n "$PLUGIN_OPTION"; then
3796 if $AR --help 2>&1 | grep -q "\--plugin"; then
3797 AR_PLUGIN_OPTION="$PLUGIN_OPTION"
3799 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
3800 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
3803 AC_SUBST(AR_PLUGIN_OPTION)
3804 AC_SUBST(RANLIB_PLUGIN_OPTION)
3807 AC_ARG_WITH([build-time-tools],
3808 [AS_HELP_STRING([--with-build-time-tools=PATH],
3809 [use given path to find target tools during the build])],
3810 [case x"$withval" in
3813 with_build_time_tools=
3814 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3817 [with_build_time_tools=])
3819 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3820 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3821 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3822 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3823 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3824 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3825 NCN_STRICT_CHECK_TARGET_TOOLS(GM2_FOR_TARGET, gm2)
3827 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3828 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3829 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3830 ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
3831 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3832 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3833 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3834 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3835 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3836 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3837 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3838 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3839 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3840 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3841 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3843 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3845 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3846 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3847 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3848 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3849 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3850 [gcc/xg++ -B$$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3852 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3853 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3855 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3856 GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
3857 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3858 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3859 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3860 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3861 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3862 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3863 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3864 GCC_TARGET_TOOL(gm2, GM2_FOR_TARGET, GM2,
3865 [gcc/gm2 -B$$r/$(HOST_SUBDIR)/gcc/], m2)
3866 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3867 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3868 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3869 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3870 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3871 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3872 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3873 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3874 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3875 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3876 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3878 AC_SUBST(FLAGS_FOR_TARGET)
3879 AC_SUBST(RAW_CXX_FOR_TARGET)
3881 # Certain tools may need extra flags.
3882 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3883 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3884 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3886 # When building target libraries, except in a Canadian cross, we use
3887 # the same toolchain as the compiler we just built.
3888 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3889 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3890 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3891 if test $host = $build; then
3892 case " $configdirs " in
3894 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3895 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3896 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3901 AC_SUBST(COMPILER_AS_FOR_TARGET)
3902 AC_SUBST(COMPILER_LD_FOR_TARGET)
3903 AC_SUBST(COMPILER_NM_FOR_TARGET)
3905 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3906 AC_ARG_ENABLE(maintainer-mode,
3907 [AS_HELP_STRING([--enable-maintainer-mode],
3908 [enable make rules and dependencies not useful
3909 (and sometimes confusing) to the casual installer])],
3910 USE_MAINTAINER_MODE=$enableval,
3911 USE_MAINTAINER_MODE=no)
3912 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3913 AC_SUBST(MAINTAINER_MODE_TRUE)
3914 AC_SUBST(MAINTAINER_MODE_FALSE)
3915 if test "$USE_MAINTAINER_MODE" = yes; then
3916 MAINTAINER_MODE_TRUE=
3917 MAINTAINER_MODE_FALSE='#'
3919 MAINTAINER_MODE_TRUE='#'
3920 MAINTAINER_MODE_FALSE=
3922 MAINT=$MAINTAINER_MODE_TRUE
3925 # ---------------------
3926 # GCC bootstrap support
3927 # ---------------------
3929 # Stage specific cflags for build.
3934 yes) stage1_cflags="-g -Wa,-J" ;;
3935 *) stage1_cflags="-g -J" ;;
3939 AC_SUBST(stage1_cflags)
3941 # Enable --enable-checking in stage1 of the compiler.
3942 AC_ARG_ENABLE(stage1-checking,
3943 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3944 [choose additional checking for stage1 of the compiler])],
3945 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3946 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3947 # For --disable-checking or implicit --enable-checking=release, avoid
3948 # setting --enable-checking=gc in the default stage1 checking for LTO
3949 # bootstraps. See PR62077.
3950 case $BUILD_CONFIG in
3952 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3954 stage1_checking=--enable-checking=yes,types;;
3956 if test "x$enable_checking" = x && \
3957 test -d ${srcdir}/gcc && \
3958 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3959 stage1_checking=--enable-checking=yes,types,extra
3962 stage1_checking=--enable-checking=$enable_checking,types
3964 AC_SUBST(stage1_checking)
3966 # Enable -Werror in bootstrap stage2 and later.
3967 AC_ARG_ENABLE(werror,
3968 [AS_HELP_STRING([--enable-werror],
3969 [enable -Werror in bootstrap stage2 and later])],
3971 case ${enable_werror} in
3972 yes) stage2_werror_flag="--enable-werror-always" ;;
3973 *) stage2_werror_flag="" ;;
3977 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3978 case $BUILD_CONFIG in
3980 stage2_werror_flag="--enable-werror-always" ;;
3982 stage2_werror_flag="--enable-werror-always" ;;
3987 AC_SUBST(stage2_werror_flag)
3989 # Specify what files to not compare during bootstrap.
3991 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3992 compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/M2Version*"
3993 compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/SYSTEM*"
3994 compare_exclusions="$compare_exclusions | gcc/m2/gm2version*"
3996 hppa*64*-*-hpux*) ;;
3997 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
3999 AC_SUBST(compare_exclusions)
4001 AC_CONFIG_FILES([Makefile],
4002 [sed "$extrasub_build" Makefile |
4003 sed "$extrasub_host" |
4004 sed "$extrasub_target" > mf$$
4005 mv -f mf$$ Makefile],
4006 [extrasub_build="$extrasub_build"
4007 extrasub_host="$extrasub_host"
4008 extrasub_target="$extrasub_target"])