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([[--enable-gprofng[=ARG]]],
412 [build gprofng @<:@ARG={yes,no}@:>@])],
413 enable_gprofng=$enableval,
415 if test "$enable_gprofng" = "yes"; then
419 x86_64-*-linux* | i?86-*-linux* | aarch64-*-linux* | riscv64-*-linux*)
420 configdirs="$configdirs gprofng"
427 # Decide the default method for compressing debug sections.
428 # Provide a configure time option to override our default.
429 AC_ARG_ENABLE(compressed_debug_sections,
430 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
431 [Enable compressed debug sections for gas, gold or ld by
434 if test x"$enable_compressed_debug_sections" = xyes; then
435 AC_MSG_ERROR([no program with compressed debug sections specified])
437 ], [enable_compressed_debug_sections=])
439 # Select default compression algorithm.
440 AC_ARG_ENABLE(default_compressed_debug_sections_algorithm,
441 [AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}],
442 [Default compression algorithm for --enable-compressed-debug-sections.])],
443 [], [default_compressed_debug_sections_algorithm=])
445 # Configure extra directories which are host specific
449 configdirs="$configdirs libtermcap" ;;
452 # A target can indicate whether a language isn't supported for some reason.
453 # Only spaces may be used in this macro; not newlines or tabs.
454 unsupported_languages=
456 # Remove more programs from consideration, based on the host or
457 # target this usually means that a port of the program doesn't
461 i[[3456789]]86-*-msdosdjgpp*)
462 noconfigdirs="$noconfigdirs tcl tk itcl"
466 # Default to --disable-year2038 until we can handle differences between
467 # projects that use gnulib (which understands year 2038) and projects that
469 AC_ARG_ENABLE(year2038,
470 AS_HELP_STRING([--enable-year2038],
471 [enable support for timestamps past the year 2038]),
472 ENABLE_YEAR2038=$enableval,
475 if test "${ENABLE_YEAR2038}" = "no" ; then
479 AC_ARG_ENABLE(libquadmath,
480 AS_HELP_STRING([--disable-libquadmath],
481 [do not build libquadmath directory]),
482 ENABLE_LIBQUADMATH=$enableval,
483 ENABLE_LIBQUADMATH=yes)
484 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
485 noconfigdirs="$noconfigdirs target-libquadmath"
489 AC_ARG_ENABLE(libquadmath-support,
490 AS_HELP_STRING([--disable-libquadmath-support],
491 [disable libquadmath support for Fortran]),
492 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
493 ENABLE_LIBQUADMATH_SUPPORT=yes)
494 enable_libquadmath_support=
495 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
496 enable_libquadmath_support=no
500 AC_ARG_ENABLE(libada,
501 [AS_HELP_STRING([--enable-libada], [build libada directory])],
502 ENABLE_LIBADA=$enableval,
504 if test "${ENABLE_LIBADA}" != "yes" ; then
505 noconfigdirs="$noconfigdirs gnattools"
508 AC_ARG_ENABLE(libgm2,
509 [AS_HELP_STRING([--enable-libgm2], [build libgm2 directory])],
510 ENABLE_LIBGM2=$enableval,
512 if test "${ENABLE_LIBGM2}" != "yes" ; then
513 noconfigdirs="$noconfigdirs gm2tools"
516 AC_ARG_ENABLE(libssp,
517 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
518 ENABLE_LIBSSP=$enableval,
521 AC_ARG_ENABLE(libstdcxx,
522 AS_HELP_STRING([--disable-libstdcxx],
523 [do not build libstdc++-v3 directory]),
524 ENABLE_LIBSTDCXX=$enableval,
525 ENABLE_LIBSTDCXX=default)
526 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
527 noconfigdirs="$noconfigdirs target-libstdc++-v3"
530 # Enable libgomp by default on hosted POSIX systems, and a few others.
531 if test x$enable_libgomp = x ; then
533 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
535 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
537 *-*-solaris2* | *-*-hpux11*)
539 *-*-darwin* | *-*-aix*)
541 nvptx*-*-* | amdgcn*-*-*)
544 noconfigdirs="$noconfigdirs target-libgomp"
549 # Disable libatomic on unsupported systems.
550 if test -d ${srcdir}/libatomic; then
551 if test x$enable_libatomic = x; then
552 AC_MSG_CHECKING([for libatomic support])
553 if (srcdir=${srcdir}/libatomic; \
554 . ${srcdir}/configure.tgt; \
555 test -n "$UNSUPPORTED")
558 noconfigdirs="$noconfigdirs target-libatomic"
565 # Disable libitm on unsupported systems.
566 if test -d ${srcdir}/libitm; then
567 if test x$enable_libitm = x; then
568 AC_MSG_CHECKING([for libitm support])
569 if (srcdir=${srcdir}/libitm; \
570 . ${srcdir}/configure.tgt; \
571 test -n "$UNSUPPORTED")
574 noconfigdirs="$noconfigdirs target-libitm"
581 # Disable libsanitizer on unsupported systems.
582 if test -d ${srcdir}/libsanitizer; then
583 if test x$enable_libsanitizer = x; then
584 AC_MSG_CHECKING([for libsanitizer support])
585 if (srcdir=${srcdir}/libsanitizer; \
586 . ${srcdir}/configure.tgt; \
587 test -n "$UNSUPPORTED")
590 noconfigdirs="$noconfigdirs target-libsanitizer"
597 # Disable libvtv on unsupported systems.
598 if test -d ${srcdir}/libvtv; then
599 if test x$enable_libvtv = x; then
600 AC_MSG_CHECKING([for libvtv support])
601 if (srcdir=${srcdir}/libvtv; \
602 . ${srcdir}/configure.tgt; \
603 test "$VTV_SUPPORTED" != "yes")
606 noconfigdirs="$noconfigdirs target-libvtv"
613 # Disable libquadmath for some systems.
616 noconfigdirs="$noconfigdirs target-libquadmath"
618 # libquadmath is unused on AIX and libquadmath build process use of
619 # LD_LIBRARY_PATH can break AIX bootstrap.
620 powerpc-*-aix* | rs6000-*-aix*)
621 noconfigdirs="$noconfigdirs target-libquadmath"
625 # Disable libssp for some systems.
628 # No hosted I/O support.
629 noconfigdirs="$noconfigdirs target-libssp"
632 noconfigdirs="$noconfigdirs target-libssp"
634 powerpc-*-aix* | rs6000-*-aix*)
635 noconfigdirs="$noconfigdirs target-libssp"
638 # No hosted I/O support.
639 noconfigdirs="$noconfigdirs target-libssp"
642 # libssp uses a misaligned load to trigger a fault, but the RL78
643 # doesn't fault for those - instead, it gives a build-time error
644 # for explicit misaligned loads.
645 noconfigdirs="$noconfigdirs target-libssp"
648 # No hosted I/O support.
649 noconfigdirs="$noconfigdirs target-libssp"
653 # Disable libstdc++-v3 for some systems.
654 # Allow user to override this if they pass --enable-libstdcxx
655 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
658 # VxWorks uses the Dinkumware C++ library.
659 noconfigdirs="$noconfigdirs target-libstdc++-v3"
662 # Not ported/fails to build when using newlib.
663 noconfigdirs="$noconfigdirs target-libstdc++-v3"
666 # the C++ libraries don't build on top of CE's C libraries
667 noconfigdirs="$noconfigdirs target-libstdc++-v3"
670 noconfigdirs="$noconfigdirs target-libstdc++-v3"
673 noconfigdirs="$noconfigdirs target-libstdc++-v3"
676 noconfigdirs="$noconfigdirs target-libstdc++-v3"
681 # Disable C++ on systems where it is known to not work.
682 # For testing, you can override this with --enable-languages=c++.
683 case ,${enable_languages}, in
689 unsupported_languages="$unsupported_languages c++"
695 # Disable Objc on systems where it is known to not work.
696 # For testing, you can override this with --enable-languages=objc.
697 case ,${enable_languages}, in
703 unsupported_languages="$unsupported_languages objc"
709 # Disable D on systems where it is known to not work.
710 # For testing, you can override this with --enable-languages=d.
711 case ,${enable_languages}, in
717 unsupported_languages="$unsupported_languages d"
723 # Disable libphobos on unsupported systems.
724 # For testing, you can override this with --enable-libphobos.
725 if test -d ${srcdir}/libphobos; then
726 if test x$enable_libphobos = x; then
727 AC_MSG_CHECKING([for libphobos support])
728 if (srcdir=${srcdir}/libphobos; \
729 . ${srcdir}/configure.tgt; \
730 test "$LIBPHOBOS_SUPPORTED" != "yes")
733 noconfigdirs="$noconfigdirs target-libphobos"
740 # Disable Fortran for some systems.
743 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
744 unsupported_languages="$unsupported_languages fortran"
747 unsupported_languages="$unsupported_languages fortran"
751 # Disable libffi for some systems.
755 i[[3456789]]86-*-darwin*)
757 x86_64-*-darwin[[912]]*)
760 noconfigdirs="$noconfigdirs target-libffi"
763 noconfigdirs="$noconfigdirs target-libffi"
766 noconfigdirs="$noconfigdirs target-libffi"
769 noconfigdirs="$noconfigdirs target-libffi"
772 noconfigdirs="$noconfigdirs target-libffi"
775 noconfigdirs="$noconfigdirs target-libffi"
778 noconfigdirs="$noconfigdirs target-libffi"
781 noconfigdirs="$noconfigdirs target-libffi"
784 noconfigdirs="$noconfigdirs target-libffi"
787 noconfigdirs="$noconfigdirs target-libffi"
790 noconfigdirs="$noconfigdirs target-libffi"
793 noconfigdirs="$noconfigdirs target-libffi"
796 noconfigdirs="$noconfigdirs target-libffi"
798 cris-*-* | crisv32-*-*)
802 *) # See PR46792 regarding target-libffi.
803 noconfigdirs="$noconfigdirs target-libffi";;
807 noconfigdirs="$noconfigdirs target-libffi"
812 noconfigdirs="$noconfigdirs target-libffi"
815 noconfigdirs="$noconfigdirs target-libffi"
817 i[[3456789]]86-w64-mingw*)
818 noconfigdirs="$noconfigdirs target-libffi"
820 i[[3456789]]86-*-mingw*)
821 noconfigdirs="$noconfigdirs target-libffi"
824 noconfigdirs="$noconfigdirs target-libffi"
827 noconfigdirs="$noconfigdirs target-libffi"
834 noconfigdirs="$noconfigdirs target-libffi"
837 noconfigdirs="$noconfigdirs target-libffi"
841 # Disable the go frontend on systems where it is known to not work. Please keep
842 # this in sync with contrib/config-list.mk.
844 *-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
845 unsupported_languages="$unsupported_languages go"
849 # Only allow gdbserver on some systems.
850 if test -d ${srcdir}/gdbserver; then
851 if test x$enable_gdbserver = x; then
852 AC_MSG_CHECKING([for gdbserver support])
853 if (srcdir=${srcdir}/gdbserver; \
854 . ${srcdir}/configure.srv; \
855 test -n "$UNSUPPORTED")
858 noconfigdirs="$noconfigdirs gdbserver"
865 # Disable libgo for some systems where it is known to not work.
866 # For testing, you can easily override this with --enable-libgo.
867 if test x$enable_libgo = x; then
871 noconfigdirs="$noconfigdirs target-libgo"
873 *-*-cygwin* | *-*-mingw*)
874 noconfigdirs="$noconfigdirs target-libgo"
877 noconfigdirs="$noconfigdirs target-libgo"
882 # Default libgloss CPU subdirectory.
883 libgloss_dir="$target_cpu"
886 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
895 cris-*-* | crisv32-*-*)
914 libgloss_dir=loongarch
916 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
936 # Disable newlib and libgloss for various target OSes.
939 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
941 i[[3456789]]86-*-linux*)
942 # This section makes it possible to build newlib natively on linux.
943 # If we are using a cross compiler then don't configure newlib.
944 if test x${is_cross_compiler} != xno ; then
945 noconfigdirs="$noconfigdirs target-newlib"
947 noconfigdirs="$noconfigdirs target-libgloss"
948 # If we are not using a cross compiler, do configure newlib.
949 # Note however, that newlib will only be configured in this situation
950 # if the --with-newlib option has been given, because otherwise
951 # 'target-newlib' will appear in skipdirs.
953 i[[3456789]]86-*-rdos*)
954 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
956 sh*-*-pe|mips*-*-pe|arm-wince-pe)
957 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
960 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
963 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
966 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
969 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
972 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
975 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
978 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
980 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
981 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
984 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
987 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
990 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
993 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
996 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
999 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1002 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1010 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1011 noconfigdirs="$noconfigdirs sim target-rda"
1016 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1017 noconfigdirs="$noconfigdirs sim target-rda"
1020 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1021 noconfigdirs="$noconfigdirs sim target-rda"
1023 i[[3456789]]86-*-darwin*)
1024 noconfigdirs="$noconfigdirs ld gprof"
1025 noconfigdirs="$noconfigdirs sim target-rda"
1027 x86_64-*-darwin[[912]]*)
1028 noconfigdirs="$noconfigdirs ld gas gprof"
1029 noconfigdirs="$noconfigdirs sim target-rda"
1032 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1033 noconfigdirs="$noconfigdirs sim target-rda"
1038 if test "x$with_gmp" = x \
1039 && ! test -d ${srcdir}/gmp \
1040 && test -f /usr/local/include/gmp.h; then
1045 # Remove unsupported stuff on all kaOS configurations.
1046 noconfigdirs="$noconfigdirs target-libgloss"
1053 noconfigdirs="$noconfigdirs target-libgloss"
1056 noconfigdirs="$noconfigdirs target-libgloss"
1058 # The tpf target doesn't support gdb yet.
1060 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
1063 noconfigdirs="$noconfigdirs target-rda"
1068 # ld works, but does not support shared libraries.
1069 # gas doesn't generate exception information.
1070 noconfigdirs="$noconfigdirs gas ld"
1073 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1076 # newlib is not 64 bit ready
1077 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1080 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1082 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1083 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1086 noconfigdirs="$noconfigdirs sim"
1089 noconfigdirs="$noconfigdirs target-libgloss"
1092 noconfigdirs="$noconfigdirs ld target-libgloss"
1095 if test x${with_avrlibc} != xno; then
1096 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1099 c4x-*-* | tic4x-*-*)
1100 noconfigdirs="$noconfigdirs target-libgloss"
1103 noconfigdirs="$noconfigdirs target-libgloss gdb"
1106 noconfigdirs="$noconfigdirs target-libgloss"
1109 noconfigdirs="$noconfigdirs gdb"
1112 noconfigdirs="$noconfigdirs gdb"
1115 noconfigdirs="$noconfigdirs target-rda gprof"
1118 noconfigdirs="$noconfigdirs"
1121 noconfigdirs="$noconfigdirs target-libgloss"
1124 noconfigdirs="$noconfigdirs target-libgloss"
1126 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1129 noconfigdirs="$noconfigdirs gdb"
1132 noconfigdirs="$noconfigdirs gdb ld"
1140 hppa*-*-openbsd* | \
1146 noconfigdirs="$noconfigdirs ld"
1149 noconfigdirs="$noconfigdirs gdb"
1152 # No gdb support yet.
1153 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1156 # No ld support yet.
1157 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1160 # No ld support yet.
1161 noconfigdirs="$noconfigdirs libgui itcl ld"
1163 i[[3456789]]86-w64-mingw*)
1165 i[[3456789]]86-*-mingw*)
1166 target_configdirs="$target_configdirs target-winsup"
1169 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1170 noconfigdirs="$noconfigdirs target-libgloss"
1171 # always build newlib if winsup directory is present.
1172 if test -d "$srcdir/winsup/cygwin"; then
1173 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1174 elif test -d "$srcdir/newlib"; then
1175 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1178 i[[3456789]]86-*-pe)
1179 noconfigdirs="$noconfigdirs target-libgloss"
1181 i[[3456789]]86-*-sco3.2v5*)
1182 # The linker does not yet know about weak symbols in COFF,
1183 # and is not configured to handle mixed ELF and COFF.
1184 noconfigdirs="$noconfigdirs ld target-libgloss"
1186 i[[3456789]]86-*-sco*)
1187 noconfigdirs="$noconfigdirs gprof target-libgloss"
1189 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1190 noconfigdirs="$noconfigdirs target-libgloss"
1192 i[[3456789]]86-*-sysv4*)
1193 noconfigdirs="$noconfigdirs target-libgloss"
1195 i[[3456789]]86-*-beos*)
1196 noconfigdirs="$noconfigdirs gdb"
1198 i[[3456789]]86-*-rdos*)
1199 noconfigdirs="$noconfigdirs gdb"
1202 noconfigdirs="$noconfigdirs gdb gdbserver sim"
1205 noconfigdirs="$noconfigdirs gdb"
1208 noconfigdirs="$noconfigdirs sim"
1211 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1212 noconfigdirs="$noconfigdirs $target_libraries"
1215 noconfigdirs="$noconfigdirs gdb gprof"
1218 # copied from rs6000-*-* entry
1219 noconfigdirs="$noconfigdirs gprof"
1221 powerpc*-*-winnt* | powerpc*-*-pe*)
1222 target_configdirs="$target_configdirs target-winsup"
1223 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1224 # always build newlib.
1225 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1227 # This is temporary until we can link against shared libraries
1228 powerpcle-*-solaris*)
1229 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1232 noconfigdirs="$noconfigdirs gdb"
1235 noconfigdirs="$noconfigdirs gprof"
1238 noconfigdirs="$noconfigdirs gprof"
1241 noconfigdirs="$noconfigdirs gprof"
1244 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1247 noconfigdirs="$noconfigdirs gprof"
1249 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1250 if test x$with_newlib = xyes; then
1251 noconfigdirs="$noconfigdirs gprof"
1255 noconfigdirs="$noconfigdirs gprof target-libgloss"
1258 noconfigdirs="$noconfigdirs gprof target-libgloss"
1261 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1265 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1266 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1267 noconfigdirs="$noconfigdirs ld gas gprof"
1270 noconfigdirs="$noconfigdirs gprof"
1273 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1280 noconfigdirs="$noconfigdirs target-libgloss" ;;
1284 if test x${is_cross_compiler} = xno ; then
1289 noconfigdirs="$noconfigdirs sim"
1291 tilepro*-*-* | tilegx*-*-*)
1292 noconfigdirs="$noconfigdirs sim"
1295 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1298 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1301 noconfigdirs="$noconfigdirs ld"
1303 loongarch*-*-linux*)
1306 noconfigdirs="$noconfigdirs gprof"
1310 # If we aren't building newlib, then don't build libgloss, since libgloss
1311 # depends upon some newlib header files.
1312 case "${noconfigdirs}" in
1313 *target-libgloss*) ;;
1314 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1317 # Work in distributions that contain no compiler tools, like Autoconf.
1318 host_makefile_frag=/dev/null
1319 if test -d ${srcdir}/config ; then
1321 i[[3456789]]86-*-msdosdjgpp*)
1322 host_makefile_frag="config/mh-djgpp"
1325 ACX_CHECK_CYGWIN_CAT_WORKS
1326 host_makefile_frag="config/mh-cygwin"
1329 host_makefile_frag="config/mh-mingw"
1332 host_makefile_frag="config/mh-alpha-linux"
1335 host_makefile_frag="config/mh-pa"
1338 host_makefile_frag="config/mh-pa"
1340 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
1341 host_makefile_frag="config/mh-darwin"
1344 host_makefile_frag="config/mh-ppc-aix"
1347 host_makefile_frag="config/mh-ppc-aix"
1352 if test "${build}" != "${host}" ; then
1353 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1354 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1355 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1356 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
1357 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1358 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
1359 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1360 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1361 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1362 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1363 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1364 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1365 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1366 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1367 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1369 AR_FOR_BUILD="\$(AR)"
1370 AS_FOR_BUILD="\$(AS)"
1371 CC_FOR_BUILD="\$(CC)"
1372 CXX_FOR_BUILD="\$(CXX)"
1373 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
1374 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1375 GOC_FOR_BUILD="\$(GOC)"
1376 GDC_FOR_BUILD="\$(GDC)"
1377 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1378 LD_FOR_BUILD="\$(LD)"
1379 NM_FOR_BUILD="\$(NM)"
1380 RANLIB_FOR_BUILD="\$(RANLIB)"
1381 WINDRES_FOR_BUILD="\$(WINDRES)"
1382 WINDMC_FOR_BUILD="\$(WINDMC)"
1388 # We must set the default linker to the linker used by gcc for the correct
1389 # operation of libtool. If LD is not defined and we are using gcc, try to
1390 # set the LD default to the ld used by gcc.
1391 if test -z "$LD"; then
1392 if test "$GCC" = yes; then
1395 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1397 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1399 case $gcc_prog_ld in
1400 # Accept absolute paths.
1401 [[\\/]* | [A-Za-z]:[\\/]*)]
1402 LD="$gcc_prog_ld" ;;
1407 # Check whether -static-libstdc++ -static-libgcc is supported.
1409 if test "$GCC" = yes; then
1410 saved_LDFLAGS="$LDFLAGS"
1412 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1413 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1415 AC_LINK_IFELSE([AC_LANG_SOURCE([
1416 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1417 #error -static-libstdc++ not implemented
1420 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1421 [AC_MSG_RESULT([no])])
1424 LDFLAGS="$saved_LDFLAGS"
1429 ACX_PROG_CMP_IGNORE_INITIAL
1431 AC_ARG_ENABLE([bootstrap],
1432 [AS_HELP_STRING([--enable-bootstrap],
1433 [enable bootstrapping @<:@yes if native build@:>@])],,
1434 enable_bootstrap=default)
1436 # Issue errors and warnings for invalid/strange bootstrap combinations.
1437 if test -r $srcdir/gcc/configure; then
1443 case "$have_compiler:$host:$target:$enable_bootstrap" in
1446 # Default behavior. Enable bootstrap if we have a compiler
1447 # and we are in a native configuration.
1448 yes:$build:$build:default)
1449 enable_bootstrap=yes ;;
1452 enable_bootstrap=no ;;
1454 # We have a compiler and we are in a native configuration, bootstrap is ok
1455 yes:$build:$build:yes)
1458 # Other configurations, but we have a compiler. Assume the user knows
1461 AC_MSG_WARN([trying to bootstrap a cross compiler])
1464 # No compiler: if they passed --enable-bootstrap explicitly, fail
1466 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1468 # Fail if wrong command line
1470 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1474 # When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
1475 # C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1476 # require C++11 (or higher).
1477 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1478 CXX="$CXX -std=c++11"
1479 elif test "$have_compiler" = yes; then
1480 AX_CXX_COMPILE_STDCXX(11)
1482 if test "${build}" != "${host}"; then
1483 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1487 AC_ARG_ENABLE([pgo-build],
1488 [AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1489 [enable the PGO build])],
1490 [enable_pgo_build=$enableval],
1491 [enable_pgo_build=no])
1493 # Issue errors and warnings for invalid/strange PGO build combinations.
1494 case "$have_compiler:$host:$target:$enable_pgo_build" in
1497 # Allow the PGO build only if we aren't building a compiler and
1498 # we are in a native configuration.
1499 no:$build:$build:yes | no:$build:$build:lto) ;;
1501 # Disallow the PGO bootstrap if we are building a compiler.
1502 yes:*:*:yes | yes:*:*:lto)
1503 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1506 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1510 if test "$enable_pgo_build" != "no"; then
1511 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1512 old_CFLAGS="$CFLAGS"
1513 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1514 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1515 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1516 [PGO_BUILD_GEN_CFLAGS=])
1517 CFLAGS="$old_CFLAGS"
1518 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1519 AC_MSG_RESULT([yes])
1520 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1523 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1526 if test "$enable_pgo_build" = "lto"; then
1527 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1528 old_CFLAGS="$CFLAGS"
1529 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1530 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1531 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1532 [PGO_BUILD_LTO_CFLAGS=])
1533 CFLAGS="$old_CFLAGS"
1534 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1535 AC_MSG_RESULT([yes])
1538 AC_MSG_WARN([LTO is disabled for the PGO build])
1542 AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1543 AC_SUBST(PGO_BUILD_USE_CFLAGS)
1544 AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1546 # Used for setting $lt_cv_objdir
1549 # Check for GMP, MPFR and MPC
1552 if test -d ${srcdir}/gcc ; then
1556 if test -d ${srcdir}/gdb ; then
1557 if test "x$enable_gdb" != xno; then
1562 gmplibs="-lmpfr -lgmp"
1563 if test x"$require_mpc" = "xyes" ; then
1564 gmplibs="-lmpc $gmplibs"
1569 # Specify a location for mpc
1570 # check for this first so it ends up on the link line before mpfr.
1572 [AS_HELP_STRING([--with-mpc=PATH],
1573 [specify prefix directory for installed MPC package.
1574 Equivalent to --with-mpc-include=PATH/include
1575 plus --with-mpc-lib=PATH/lib])])
1576 AC_ARG_WITH(mpc-include,
1577 [AS_HELP_STRING([--with-mpc-include=PATH],
1578 [specify directory for installed MPC include files])])
1579 AC_ARG_WITH(mpc-lib,
1580 [AS_HELP_STRING([--with-mpc-lib=PATH],
1581 [specify directory for the installed MPC library])])
1583 if test "x$with_mpc" != x; then
1584 gmplibs="-L$with_mpc/lib $gmplibs"
1585 gmpinc="-I$with_mpc/include $gmpinc"
1587 if test "x$with_mpc_include" != x; then
1588 gmpinc="-I$with_mpc_include $gmpinc"
1590 if test "x$with_mpc_lib" != x; then
1591 gmplibs="-L$with_mpc_lib $gmplibs"
1593 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1594 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1595 gmpinc='-I$$s/mpc/src '"$gmpinc"
1596 # Do not test the mpc version. Assume that it is sufficient, since
1597 # it is in the source tree, and the library has not been built yet
1598 # but it would be included on the link line in the version check below
1599 # hence making the test fail.
1603 # Specify a location for mpfr
1604 # check for this first so it ends up on the link line before gmp.
1606 [AS_HELP_STRING([--with-mpfr=PATH],
1607 [specify prefix directory for installed MPFR package.
1608 Equivalent to --with-mpfr-include=PATH/include
1609 plus --with-mpfr-lib=PATH/lib])])
1610 AC_ARG_WITH(mpfr-include,
1611 [AS_HELP_STRING([--with-mpfr-include=PATH],
1612 [specify directory for installed MPFR include files])])
1613 AC_ARG_WITH(mpfr-lib,
1614 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1615 [specify directory for the installed MPFR library])])
1617 if test "x$with_mpfr" != x; then
1618 gmplibs="-L$with_mpfr/lib $gmplibs"
1619 gmpinc="-I$with_mpfr/include $gmpinc"
1621 if test "x$with_mpfr_include" != x; then
1622 gmpinc="-I$with_mpfr_include $gmpinc"
1624 if test "x$with_mpfr_lib" != x; then
1625 gmplibs="-L$with_mpfr_lib $gmplibs"
1627 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1628 # MPFR v3.1.0 moved the sources into a src sub-directory.
1629 if ! test -d ${srcdir}/mpfr/src; then
1631 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1633 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1634 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1635 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1636 # Do not test the mpfr version. Assume that it is sufficient, since
1637 # it is in the source tree, and the library has not been built yet
1638 # but it would be included on the link line in the version check below
1639 # hence making the test fail.
1643 # Specify a location for gmp
1645 [AS_HELP_STRING([--with-gmp=PATH],
1646 [specify prefix directory for the installed GMP package.
1647 Equivalent to --with-gmp-include=PATH/include
1648 plus --with-gmp-lib=PATH/lib])])
1649 AC_ARG_WITH(gmp-include,
1650 [AS_HELP_STRING([--with-gmp-include=PATH],
1651 [specify directory for installed GMP include files])])
1652 AC_ARG_WITH(gmp-lib,
1653 [AS_HELP_STRING([--with-gmp-lib=PATH],
1654 [specify directory for the installed GMP library])])
1657 if test "x$with_gmp" != x; then
1658 gmplibs="-L$with_gmp/lib $gmplibs"
1659 gmpinc="-I$with_gmp/include $gmpinc"
1661 if test "x$with_gmp_include" != x; then
1662 gmpinc="-I$with_gmp_include $gmpinc"
1664 if test "x$with_gmp_lib" != x; then
1665 gmplibs="-L$with_gmp_lib $gmplibs"
1667 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1668 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1669 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1670 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1671 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1672 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1673 # Do not test the gmp version. Assume that it is sufficient, since
1674 # it is in the source tree, and the library has not been built yet
1675 # but it would be included on the link line in the version check below
1676 # hence making the test fail.
1680 if test "x$require_gmp" = xyes && test "x$have_gmp" = xno; then
1682 saved_CFLAGS="$CFLAGS"
1683 CFLAGS="$CFLAGS $gmpinc"
1684 # Check for the recommended and required versions of GMP.
1685 AC_MSG_CHECKING([for the correct version of gmp.h])
1686 AC_TRY_COMPILE([#include "gmp.h"],[
1687 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1688 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1689 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1692 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1693 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1694 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1695 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1698 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1699 [AC_MSG_RESULT([no]); have_gmp=no])
1701 # If we have GMP, check the MPFR version.
1702 if test x"$have_gmp" = xyes; then
1703 # Check for the recommended and required versions of MPFR.
1704 AC_MSG_CHECKING([for the correct version of mpfr.h])
1705 AC_TRY_COMPILE([#include <gmp.h>
1706 #include <mpfr.h>],[
1707 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
1710 ], [AC_TRY_COMPILE([#include <gmp.h>
1711 #include <mpfr.h>],[
1712 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
1715 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1716 [AC_MSG_RESULT([no]); have_gmp=no])
1719 # Check for the MPC header version.
1720 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes ; then
1721 # Check for the recommended and required versions of MPC.
1722 AC_MSG_CHECKING([for the correct version of mpc.h])
1723 AC_TRY_COMPILE([#include <mpc.h>],[
1724 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1727 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1728 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1731 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1732 [AC_MSG_RESULT([no]); have_gmp=no])
1735 # Now check the MPFR library.
1736 if test x"$have_gmp" = xyes; then
1738 LIBS="$LIBS $gmplibs"
1739 AC_MSG_CHECKING([for the correct version of the gmp/mpfr libraries])
1740 AC_TRY_LINK([#include <mpfr.h>],[
1746 mpfr_atan2 (n, n, x, MPFR_RNDN);
1747 mpfr_erfc (n, x, MPFR_RNDN);
1748 mpfr_subnormalize (x, t, MPFR_RNDN);
1751 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1755 # Now check the MPC library
1756 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes; then
1758 LIBS="$LIBS $gmplibs"
1759 AC_MSG_CHECKING([for the correct version of the mpc libraries])
1760 AC_TRY_LINK([#include <mpc.h>],[
1763 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1764 mpc_cosh (c, c, MPC_RNDNN);
1765 mpc_pow (c, c, c, MPC_RNDNN);
1766 mpc_acosh (c, c, MPC_RNDNN);
1768 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1772 CFLAGS="$saved_CFLAGS"
1774 # The library versions listed in the error message below should match
1775 # the HARD-minimums enforced above.
1776 if test x$have_gmp != xyes; then
1777 if test -d ${srcdir}/gcc ; then
1778 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
1779 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1780 their locations. Source code for these libraries can be found at
1781 their respective hosting sites as well as at
1782 https://gcc.gnu.org/pub/gcc/infrastructure/. See also
1783 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1784 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1785 make sure that you have installed both the libraries and the header
1786 files. They may be located in separate packages.])
1788 AC_MSG_ERROR([Building GDB requires GMP 4.2+, and MPFR 3.1.0+.
1789 Try the --with-gmp and/or --with-mpfr options to specify
1790 their locations. If you obtained GMP and/or MPFR from a vendor
1791 distribution package, make sure that you have installed both the libraries
1792 and the header files. They may be located in separate packages.])
1797 # Flags needed for both GMP, MPFR and/or MPC.
1800 AC_SUBST(extra_mpfr_configure_flags)
1801 AC_SUBST(extra_mpc_gmp_configure_flags)
1802 AC_SUBST(extra_mpc_mpfr_configure_flags)
1803 AC_SUBST(extra_isl_gmp_configure_flags)
1805 # Libraries to use for stage1 or when not bootstrapping.
1806 AC_ARG_WITH(stage1-libs,
1807 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1808 [if test "$withval" = "no" -o "$withval" = "yes"; then
1811 stage1_libs=$withval
1814 AC_SUBST(stage1_libs)
1816 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1817 # default is yes if gcc is being built; no otherwise. The reason for
1818 # this default is that gdb is sometimes linked against GNU Source
1819 # Highlight, which is a shared library that uses C++ exceptions. In
1820 # this case, -static-libstdc++ will cause crashes.
1821 AC_ARG_WITH(static-standard-libraries,
1822 [AS_HELP_STRING([--with-static-standard-libraries],
1823 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1824 [], [with_static_standard_libraries=auto])
1825 if test "$with_static_standard_libraries" = auto; then
1826 with_static_standard_libraries=$have_compiler
1829 # Linker flags to use for stage1 or when not bootstrapping.
1830 AC_ARG_WITH(stage1-ldflags,
1831 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1832 [if test "$withval" = "no" -o "$withval" = "yes"; then
1835 stage1_ldflags=$withval
1838 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1839 # if supported. But if the user explicitly specified the libraries to use,
1840 # trust that they are doing what they want.
1841 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1842 -a "$have_static_libs" = yes; then
1843 stage1_ldflags="-static-libstdc++ -static-libgcc"
1845 AC_SUBST(stage1_ldflags)
1847 # Libraries to use for stage2 and later builds.
1848 AC_ARG_WITH(boot-libs,
1849 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1850 [if test "$withval" = "no" -o "$withval" = "yes"; then
1853 poststage1_libs=$withval
1856 AC_SUBST(poststage1_libs)
1858 # Linker flags to use for stage2 and later builds.
1859 AC_ARG_WITH(boot-ldflags,
1860 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1861 [linker flags for stage2 and later])],
1862 [if test "$withval" = "no" -o "$withval" = "yes"; then
1865 poststage1_ldflags=$withval
1867 [poststage1_ldflags=
1868 # In stages 2 and 3, default to linking libstdc++ and libgcc
1869 # statically. But if the user explicitly specified the libraries to
1870 # use, trust that they are doing what they want.
1871 if test "$poststage1_libs" = ""; then
1872 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1875 *-darwin2* | *-darwin1[[56789]]*)
1876 # For these versions, we default to using embedded rpaths.
1877 if test "x$enable_darwin_at_rpath" != "xno"; then
1878 poststage1_ldflags="$poststage1_ldflags -nodefaultrpaths"
1882 # For these versions, we only use embedded rpaths on demand.
1883 if test "x$enable_darwin_at_rpath" = "xyes"; then
1884 poststage1_ldflags="$poststage1_ldflags -nodefaultrpaths"
1888 AC_SUBST(poststage1_ldflags)
1890 # GCC GRAPHITE dependency isl.
1891 # Basic setup is inlined here, actual checks are in config/isl.m4
1896 [Specify prefix directory for the installed isl package.
1897 Equivalent to --with-isl-include=PATH/include
1898 plus --with-isl-lib=PATH/lib])])
1900 # Treat --without-isl as a request to disable
1901 # GRAPHITE support and skip all following checks.
1902 if test "x$with_isl" != "xno"; then
1904 dnl Provide configure switches and initialize islinc & isllibs
1905 dnl with user input.
1907 dnl The versions of isl that work for Graphite
1909 dnl Only execute fail-action, if isl has been requested.
1911 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1914 # If the isl check failed, disable builds of in-tree variant of isl
1915 if test "x$with_isl" = xno ||
1916 test "x$gcc_cv_isl" = xno; then
1917 noconfigdirs="$noconfigdirs isl"
1924 # Check for LTO support.
1926 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1927 enable_lto=$enableval,
1928 enable_lto=yes; default_enable_lto=yes)
1930 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1931 build_lto_plugin=yes
1932 ],[if test x"$default_enable_lto" = x"yes" ; then
1934 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1935 # On other non-ELF platforms, LTO has yet to be validated.
1939 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1940 # It would also be nice to check the binutils support, but we don't
1941 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1942 # warn during gcc/ subconfigure; unless you're bootstrapping with
1943 # -flto it won't be needed until after installation anyway.
1945 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1946 *) if test x"$enable_lto" = x"yes"; then
1947 AC_MSG_ERROR([LTO support is not enabled for this target.])
1952 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1953 # Build it unless LTO was explicitly disabled.
1955 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1960 AC_ARG_ENABLE(linker-plugin-configure-flags,
1961 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1962 [additional flags for configuring linker plugins @<:@none@:>@])],
1963 extra_linker_plugin_configure_flags=$enableval,
1964 extra_linker_plugin_configure_flags=)
1965 AC_SUBST(extra_linker_plugin_configure_flags)
1966 AC_ARG_ENABLE(linker-plugin-flags,
1967 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1968 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1969 extra_linker_plugin_flags=$enableval,
1970 extra_linker_plugin_flags=)
1971 AC_SUBST(extra_linker_plugin_flags)
1973 # Handle --enable-host-pie
1974 # If host PIE executables are the default (or must be forced on) for some host,
1975 # we must pass that configuration to the gcc directory.
1977 AC_ARG_ENABLE(host-pie,
1978 [AS_HELP_STRING([--enable-host-pie],
1979 [build position independent host executables])],
1980 [host_pie=$enableval
1983 if test x$host_pie != xyes ; then
1984 # for Darwin20+ this is required.
1985 AC_MSG_WARN([PIE executables are required for the configured host, host-pie setting ignored.])
1987 gcc_host_pie=--enable-host-pie
1993 # Default to PIE (mandatory for aarch64).
1995 gcc_host_pie=--enable-host-pie
2001 AC_SUBST(gcc_host_pie)
2003 # Enable --enable-host-shared.
2004 # Checked early to determine whether jit is an 'all' language
2005 AC_ARG_ENABLE(host-shared,
2006 [AS_HELP_STRING([--enable-host-shared],
2007 [build host code as shared libraries])],
2008 [host_shared=$enableval
2010 x86_64-*-darwin* | aarch64-*-darwin*)
2011 if test x$host_shared != xyes ; then
2012 # PIC is the default, and actually cannot be switched off.
2013 AC_MSG_WARN([PIC code is required for the configured host; host-shared setting ignored.])
2017 if test x$host_pie = xyes -a x$host_shared != xyes ; then
2018 AC_MSG_WARN([PIC code is required for PIE host executables host-shared setting ignored.])
2024 # 64B x86_64 and Aarch64 Darwin default to PIC.
2025 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
2026 # 32B and powerpc64 Darwin must use PIC to link PIE exes.
2027 *-*-darwin*) host_shared=$host_pie ;;
2031 AC_SUBST(host_shared)
2033 if test x$host_shared = xyes; then
2036 # Since host shared is the default for 64b Darwin, and also enabled for
2037 # host_pie, ensure that we present the PIE flag when host_pie is active.
2038 if test x$host_pie = xyes; then
2046 elif test x$host_pie = xyes; then
2054 # If we are building PIC/PIE host executables, and we are building dependent
2055 # libs (e.g. GMP) in-tree those libs need to be configured to generate PIC
2058 if test "$host_shared" = "yes" -o "$host_pie" = "yes"; then
2059 host_libs_picflag='--with-pic'
2061 AC_SUBST(host_libs_picflag)
2063 # By default, C and C++ are the only stage 1 languages.
2064 stage1_languages=,c,
2066 # Target libraries that we bootstrap.
2067 bootstrap_target_libs=,target-libgcc,
2069 # Figure out what language subdirectories are present.
2070 # Look if the user specified --enable-languages="..."; if not, use
2071 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2073 # NB: embedded tabs in this IF block -- do not untabify
2074 if test -d ${srcdir}/gcc; then
2075 if test x"${enable_languages+set}" != xset; then
2076 if test x"${LANGUAGES+set}" = xset; then
2077 enable_languages="${LANGUAGES}"
2078 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
2080 enable_languages=default
2083 if test x"${enable_languages}" = x ||
2084 test x"${enable_languages}" = xyes;
2086 echo configure.ac: --enable-languages needs at least one language argument 1>&2
2090 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2092 # 'f95' is the old name for the 'fortran' language. We issue a warning
2093 # and make the substitution.
2094 case ,${enable_languages}, in
2096 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
2097 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
2101 # If bootstrapping, C++ must be enabled.
2102 case ",$enable_languages,:$enable_bootstrap" in
2105 if test -f ${srcdir}/gcc/cp/config-lang.in; then
2106 enable_languages="${enable_languages},c++"
2108 AC_MSG_ERROR([bootstrapping requires c++ sources])
2113 # First scan to see if an enabled language requires some other language.
2114 # We assume that a given config-lang.in will list all the language
2115 # front ends it requires, even if some are required indirectly.
2116 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2117 case ${lang_frag} in
2119 # The odd quoting in the next line works around
2120 # an apparent bug in bash 1.12 on linux.
2121 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2123 # From the config-lang.in, get $language, $lang_requires, and
2124 # $lang_requires_boot_languages.
2127 lang_requires_boot_languages=
2128 # set srcdir during sourcing lang_frag to the gcc dir.
2129 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
2130 # polutes this shell
2131 saved_srcdir=${srcdir}
2132 srcdir=${srcdir}/gcc . ${lang_frag}
2133 srcdir=${saved_srcdir}
2134 for other in ${lang_requires} ${lang_requires_boot_languages}; do
2135 case ,${enable_languages}, in
2140 echo " \`$other' language required by \`$language'; enabling" 1>&2
2141 enable_languages="${enable_languages},${other}"
2145 for other in ${lang_requires_boot_languages} ; do
2146 if test "$other" != "c"; then
2147 case ,${enable_stage1_languages}, in
2152 case ,${enable_languages}, in
2154 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
2155 enable_stage1_languages="$enable_stage1_languages,${other}"
2166 new_enable_languages=,c,
2168 # If LTO is enabled, add the LTO front end.
2169 if test "$enable_lto" = "yes" ; then
2170 case ,${enable_languages}, in
2172 *) enable_languages="${enable_languages},lto" ;;
2174 if test "${build_lto_plugin}" = "yes" ; then
2175 configdirs="$configdirs lto-plugin"
2179 # If we're building an offloading compiler, add the LTO front end.
2180 if test x"$enable_as_accelerator_for" != x ; then
2181 case ,${enable_languages}, in
2183 *) enable_languages="${enable_languages},lto" ;;
2187 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
2188 potential_languages=,c,
2190 enabled_target_libs=
2191 disabled_target_libs=
2193 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2194 case ${lang_frag} in
2196 # The odd quoting in the next line works around
2197 # an apparent bug in bash 1.12 on linux.
2198 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2200 # From the config-lang.in, get $language, $target_libs,
2201 # $lang_dirs, $boot_language, and $build_by_default
2207 build_by_default=yes
2208 # set srcdir during sourcing. See above about save & restore
2209 saved_srcdir=${srcdir}
2210 srcdir=${srcdir}/gcc . ${lang_frag}
2211 srcdir=${saved_srcdir}
2212 if test x${language} = x; then
2213 echo "${lang_frag} doesn't set \$language." 1>&2
2217 if test "$language" = "c++"; then
2222 # C is always enabled, so no need to add it again
2223 if test "$language" != "c"; then
2224 case ,${enable_languages}, in
2226 # Language was explicitly selected; include it
2230 # All languages are enabled
2234 # 'default' was selected, select it if it is a default language
2235 add_this_lang=${build_by_default}
2240 # Disable languages that need other directories if these aren't available.
2241 for i in $subdir_requires; do
2242 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2243 case ${add_this_lang} in
2245 # Specifically requested language; tell them.
2246 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2249 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2250 add_this_lang=unsupported
2254 add_this_lang=unsupported
2259 # Disable Ada if no preexisting GNAT is available.
2260 case ${add_this_lang}:${language}:${have_gnat} in
2262 # Specifically requested language; tell them.
2263 AC_MSG_ERROR([GNAT is required to build $language])
2266 AC_MSG_WARN([GNAT is required to build $language])
2267 add_this_lang=unsupported
2271 add_this_lang=unsupported
2275 # Disable D if no preexisting GDC is available.
2276 case ${add_this_lang}:${language}:${have_gdc} in
2278 # Specifically requested language; tell them.
2279 AC_MSG_ERROR([GDC is required to build $language])
2282 AC_MSG_WARN([GDC is required to build $language])
2283 add_this_lang=unsupported
2287 add_this_lang=unsupported
2291 # Disable jit if -enable-host-shared not specified
2292 # but not if building for Mingw. All code in Windows
2293 # is position independent code (PIC).
2297 case ${add_this_lang}:${language}:${host_shared} in
2299 # PR jit/64780: explicitly specify --enable-host-shared
2301 Enabling language "jit" requires --enable-host-shared.
2303 --enable-host-shared typically slows the rest of the compiler down by
2304 a few %, so you must explicitly enable it.
2306 If you want to build both the jit and the regular compiler, it is often
2307 best to do this via two separate configure/builds, in separate
2308 directories, to avoid imposing the performance cost of
2309 --enable-host-shared on the regular compiler.])
2312 AC_MSG_WARN([--enable-host-shared required to build $language])
2313 add_this_lang=unsupported
2317 add_this_lang=unsupported
2323 # Disable a language that is unsupported by the target.
2324 case "${add_this_lang}: $unsupported_languages " in
2328 AC_MSG_WARN([${language} not supported for this target])
2329 add_this_lang=unsupported
2333 case $add_this_lang in
2335 # Remove language-dependent dirs.
2336 disabled_target_libs="$disabled_target_libs $target_libs"
2337 noconfigdirs="$noconfigdirs $lang_dirs"
2340 # Remove language-dependent dirs; still show language as supported.
2341 disabled_target_libs="$disabled_target_libs $target_libs"
2342 noconfigdirs="$noconfigdirs $lang_dirs"
2343 potential_languages="${potential_languages}${language},"
2346 new_enable_languages="${new_enable_languages}${language},"
2347 potential_languages="${potential_languages}${language},"
2348 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2349 enabled_target_libs="$enabled_target_libs $target_libs"
2350 case "${boot_language}:,$enable_stage1_languages," in
2351 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2352 # Add to (comma-separated) list of stage 1 languages.
2353 case ",$stage1_languages," in
2354 *,$language,* | ,yes, | ,all,) ;;
2355 *) stage1_languages="${stage1_languages}${language}," ;;
2357 # We need to bootstrap any supporting libraries.
2358 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2367 # Add target libraries which are only needed for disabled languages
2369 if test -n "$disabled_target_libs"; then
2370 for dir in $disabled_target_libs; do
2371 case " $enabled_target_libs " in
2373 *) noconfigdirs="$noconfigdirs $dir" ;;
2378 AC_ARG_ENABLE(stage1-languages,
2379 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2380 [choose additional languages to build during
2381 stage1. Mostly useful for compiler development])],
2382 [case ,${enable_stage1_languages}, in
2384 # Set it to something that will have no effect in the loop below
2385 enable_stage1_languages=c ;;
2387 enable_stage1_languages=`echo $new_enable_languages | \
2388 sed -e "s/^,//" -e "s/,$//" ` ;;
2390 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2391 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2394 # Add "good" languages from enable_stage1_languages to stage1_languages,
2395 # while "bad" languages go in missing_languages. Leave no duplicates.
2396 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2397 case $potential_languages in
2399 case $stage1_languages in
2401 *) stage1_languages="$stage1_languages$i," ;;
2404 case $missing_languages in
2406 *) missing_languages="$missing_languages$i," ;;
2411 # Remove leading/trailing commas that were added for simplicity
2412 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2413 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2414 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2415 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2417 if test "x$missing_languages" != x; then
2419 The following requested languages could not be built: ${missing_languages}
2420 Supported languages are: ${potential_languages}])
2422 if test "x$new_enable_languages" != "x$enable_languages"; then
2423 echo The following languages will be built: ${new_enable_languages}
2424 enable_languages="$new_enable_languages"
2427 AC_SUBST(stage1_languages)
2428 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2431 # Handle --disable-<component> generically.
2432 for dir in $configdirs $build_configdirs $target_configdirs ; do
2433 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2434 varname=`echo $dirname | sed -e s/+/_/g`
2435 if eval test x\${enable_${varname}} "=" xno ; then
2436 noconfigdirs="$noconfigdirs $dir"
2440 # Check for Boehm's garbage collector
2441 AC_ARG_ENABLE(objc-gc,
2442 [AS_HELP_STRING([--enable-objc-gc],
2443 [enable use of Boehm's garbage collector with the
2444 GNU Objective-C runtime])])
2445 AC_ARG_WITH([target-bdw-gc],
2446 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2447 [specify prefix directory for installed bdw-gc package.
2448 Equivalent to --with-target-bdw-gc-include=PATH/include
2449 plus --with-target-bdw-gc-lib=PATH/lib])])
2450 AC_ARG_WITH([target-bdw-gc-include],
2451 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2452 [specify directories for installed bdw-gc include files])])
2453 AC_ARG_WITH([target-bdw-gc-lib],
2454 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2455 [specify directories for installed bdw-gc library])])
2457 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2458 AC_MSG_CHECKING([for bdw garbage collector])
2459 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2460 dnl no bdw-gw options, assume default locations
2461 AC_MSG_RESULT([using bdw-gc in default locations])
2463 dnl bdw-gw options, first error checking, complete checking in libobjc
2464 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2465 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2466 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2467 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2469 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2474 # Disable libitm, libsanitizer, libvtv if we're not building C++
2475 case ,${enable_languages}, in
2477 # Disable libitm, libsanitizer if we're not building libstdc++
2478 case "${noconfigdirs}" in
2479 *target-libstdc++-v3*)
2480 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2486 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer target-libvtv"
2490 case ,${enable_languages}, in
2492 case " ${noconfigdirs} " in
2493 *\ target-libstdc++-v3\ *)
2494 # Disable target libgrust if we're not building target libstdc++.
2495 noconfigdirs="$noconfigdirs target-libgrust"
2501 # If gcc/ is not in the source tree then we'll not be building a
2502 # target compiler, assume in that case we don't want to build any
2503 # target libraries or tools.
2505 # This was added primarily for the benefit for binutils-gdb who reuse
2506 # this configure script, but don't always have target tools available.
2507 if test ! -d ${srcdir}/gcc; then
2508 skipdirs="${skipdirs} ${target_configdirs}"
2511 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2512 # $build_configdirs and $target_configdirs.
2513 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2516 for dir in . $skipdirs $noconfigdirs ; do
2517 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2518 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2519 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2520 if test -r $srcdir/$dirname/configure ; then
2521 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2524 notsupp="$notsupp $dir"
2528 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2529 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2530 if test -r $srcdir/$dirname/configure ; then
2531 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2534 notsupp="$notsupp $dir"
2538 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2539 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2540 if test -r $srcdir/$dirname/configure ; then
2541 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2544 notsupp="$notsupp $dir"
2550 # Quietly strip out all directories which aren't configurable in this tree.
2551 # This relies on all configurable subdirectories being autoconfiscated, which
2553 build_configdirs_all="$build_configdirs"
2555 for i in ${build_configdirs_all} ; do
2556 j=`echo $i | sed -e s/build-//g`
2557 if test -f ${srcdir}/$j/configure ; then
2558 build_configdirs="${build_configdirs} $i"
2562 configdirs_all="$configdirs"
2564 for i in ${configdirs_all} ; do
2565 if test -f ${srcdir}/$i/configure ; then
2566 configdirs="${configdirs} $i"
2570 target_configdirs_all="$target_configdirs"
2572 for i in ${target_configdirs_all} ; do
2573 j=`echo $i | sed -e s/target-//g`
2574 if test -f ${srcdir}/$j/configure ; then
2575 target_configdirs="${target_configdirs} $i"
2579 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2580 # so we have to add it after the preceding checks.
2581 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2583 case " $configdirs " in
2585 # If we can build libiberty, we can also build libiberty-linker-plugin.
2586 configdirs="$configdirs libiberty-linker-plugin"
2587 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2588 --with-libiberty=../libiberty-linker-plugin";;
2590 AC_MSG_ERROR([libiberty missing]);;
2594 # Sometimes we have special requirements for the host libiberty.
2595 extra_host_libiberty_configure_flags=
2596 case " $configdirs " in
2597 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
2598 # When these are to be built as shared libraries, the same applies to
2600 extra_host_libiberty_configure_flags=--enable-shared
2603 AC_SUBST(extra_host_libiberty_configure_flags)
2605 # Sometimes we have special requirements for the host zlib.
2606 extra_host_zlib_configure_flags=
2607 case " $configdirs " in
2609 # When bfd is to be built as a shared library, the same applies to
2611 if test "$enable_shared" = "yes"; then
2612 extra_host_zlib_configure_flags=--enable-host-shared
2616 AC_SUBST(extra_host_zlib_configure_flags)
2618 # Produce a warning message for the subdirs we can't configure.
2619 # This isn't especially interesting in the Cygnus tree, but in the individual
2620 # FSF releases, it's important to let people know when their machine isn't
2621 # supported by the one or two programs in a package.
2623 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2624 # If $appdirs is non-empty, at least one of those directories must still
2625 # be configured, or we error out. (E.g., if the gas release supports a
2626 # specified target in some subdirs but not the gas subdir, we shouldn't
2627 # pretend that all is well.)
2628 if test -n "$appdirs" ; then
2629 for dir in $appdirs ; do
2630 if test -r $dir/Makefile.in ; then
2631 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2635 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2641 if test -n "$appdirs" ; then
2642 echo "*** This configuration is not supported by this package." 1>&2
2646 # Okay, some application will build, or we don't care to check. Still
2647 # notify of subdirs not getting built.
2648 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2649 echo " ${notsupp}" 1>&2
2650 echo " (Any other directories should still work fine.)" 1>&2
2658 # To find our prefix, in gcc_cv_tool_prefix.
2663 AC_ARG_WITH([build-sysroot],
2664 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2665 [use sysroot as the system root during the build])],
2666 [if test x"$withval" != x ; then
2667 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2669 [SYSROOT_CFLAGS_FOR_TARGET=])
2670 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2672 AC_ARG_WITH([debug-prefix-map],
2673 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2674 [map A to B, C to D ... in debug information])],
2675 [if test x"$withval" != x; then
2676 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2677 for debug_map in $withval; do
2678 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2681 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2682 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2684 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2685 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2686 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2687 # We want to ensure that TARGET libraries (which we know are built with
2688 # gcc) are built with "-O2 -g", so include those options when setting
2689 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2690 if test "x$CFLAGS_FOR_TARGET" = x; then
2691 if test "x${is_cross_compiler}" = xyes; then
2692 CFLAGS_FOR_TARGET="-g -O2"
2694 CFLAGS_FOR_TARGET=$CFLAGS
2697 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2700 *" -g "* | *" -g3 "*) ;;
2701 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2705 AC_SUBST(CFLAGS_FOR_TARGET)
2707 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2708 if test "x${is_cross_compiler}" = xyes; then
2709 CXXFLAGS_FOR_TARGET="-g -O2"
2711 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2712 case " $CXXFLAGS " in
2714 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2716 case " $CXXFLAGS " in
2717 *" -g "* | *" -g3 "*) ;;
2718 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2722 AC_SUBST(CXXFLAGS_FOR_TARGET)
2724 AC_SUBST(LDFLAGS_FOR_TARGET)
2726 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2727 # the named directory are copied to $(tooldir)/sys-include.
2728 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2729 if test x${is_cross_compiler} = xno ; then
2730 echo 1>&2 '***' --with-headers is only supported when cross compiling
2733 if test x"${with_headers}" != xyes ; then
2734 x=${gcc_cv_tool_prefix}
2735 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2739 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2740 # the name directories are copied to $(tooldir)/lib. Multiple directories
2742 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2743 if test x${is_cross_compiler} = xno ; then
2744 echo 1>&2 '***' --with-libs is only supported when cross compiling
2747 if test x"${with_libs}" != xyes ; then
2748 # Copy the libraries in reverse order, so that files in the first named
2749 # library override files in subsequent libraries.
2750 x=${gcc_cv_tool_prefix}
2751 for l in ${with_libs}; do
2752 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2757 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2759 # This is done by determining whether or not the appropriate directory
2760 # is available, and by checking whether or not specific configurations
2761 # have requested that this magic not happen.
2763 # The command line options always override the explicit settings in
2764 # configure.ac, and the settings in configure.ac override this magic.
2766 # If the default for a toolchain is to use GNU as and ld, and you don't
2767 # want to do that, then you should use the --without-gnu-as and
2768 # --without-gnu-ld options for the configure script. Similarly, if
2769 # the default is to use the included zlib and you don't want to do that,
2770 # you should use the --with-system-zlib option for the configure script.
2772 if test x${use_gnu_as} = x &&
2773 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2775 extra_host_args="$extra_host_args --with-gnu-as"
2778 if test x${use_gnu_ld} = x &&
2779 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2781 extra_host_args="$extra_host_args --with-gnu-ld"
2784 if test x${use_included_zlib} = x &&
2785 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2788 with_system_zlib=yes
2789 extra_host_args="$extra_host_args --with-system-zlib"
2792 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2793 # can detect this case.
2795 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2797 extra_host_args="$extra_host_args --with-newlib"
2800 # Handle ${copy_dirs}
2801 set fnord ${copy_dirs}
2803 while test $# != 0 ; do
2804 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2807 echo Copying $1 to $2
2809 # Use the install script to create the directory and all required
2810 # parent directories.
2811 if test -d $2 ; then
2815 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2818 # Copy the directory, assuming we have tar.
2819 # FIXME: Should we use B in the second tar? Not all systems support it.
2820 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2822 # It is the responsibility of the user to correctly adjust all
2823 # symlinks. If somebody can figure out how to handle them correctly
2824 # here, feel free to add the code.
2831 # Determine a target-dependent exec_prefix that the installed
2832 # gcc will search in. Keep this list sorted by triplet, with
2833 # the *-*-osname triplets last.
2836 i[[34567]]86-pc-msdosdjgpp*)
2837 md_exec_prefix=/dev/env/DJDIR/bin
2842 md_exec_prefix=/usr/ccs/bin
2846 extra_arflags_for_target=
2847 extra_nmflags_for_target=
2848 extra_ranlibflags_for_target=
2849 target_makefile_frag=/dev/null
2852 target_makefile_frag="config/mt-spu"
2854 loongarch*-*linux* | loongarch*-*gnu*)
2855 target_makefile_frag="config/mt-loongarch-gnu"
2858 target_makefile_frag="config/mt-loongarch-elf"
2860 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2861 target_makefile_frag="config/mt-sde"
2863 mipsisa*-*-elfoabi*)
2864 target_makefile_frag="config/mt-mips-elfoabi"
2866 mips*-*-*linux* | mips*-*-gnu*)
2867 target_makefile_frag="config/mt-mips-gnu"
2870 target_makefile_frag="config/mt-nios2-elf"
2873 target_makefile_frag="config/mt-android"
2875 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2876 target_makefile_frag="config/mt-gnu"
2878 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2879 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2880 # commands to handle both 32-bit and 64-bit objects. These flags are
2881 # harmless if we're using GNU nm or ar.
2882 extra_arflags_for_target=" -X32_64"
2883 extra_nmflags_for_target=" -B -X32_64"
2887 alphaieee_frag=/dev/null
2890 # This just makes sure to use the -mieee option to build target libs.
2891 # This should probably be set individually by each library.
2892 alphaieee_frag="config/mt-alphaieee"
2896 # If --enable-target-optspace always use -Os instead of -O2 to build
2897 # the target libraries, similarly if it is not specified, use -Os
2898 # on selected platforms.
2899 ospace_frag=/dev/null
2900 case "${enable_target_optspace}:${target}" in
2902 ospace_frag="config/mt-ospace"
2905 ospace_frag="config/mt-d30v"
2907 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2908 ospace_frag="config/mt-ospace"
2913 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2917 # Some systems (e.g., one of the i386-aix systems the gas testers are
2918 # using) don't handle "\$" correctly, so don't use it here.
2919 tooldir='${exec_prefix}'/${target_noncanonical}
2920 build_tooldir=${tooldir}
2922 # Create a .gdbinit file which runs the one in srcdir
2923 # and tells GDB to look there for source files.
2925 if test -r ${srcdir}/.gdbinit ; then
2928 *) cat > ./.gdbinit <<EOF
2932 source ${srcdir}/.gdbinit
2938 # Make sure that the compiler is able to generate an executable. If it
2939 # can't, we are probably in trouble. We don't care whether we can run the
2940 # executable--we might be using a cross compiler--we only care whether it
2941 # can be created. At this point the main configure script has set CC.
2943 echo "int main () { return 0; }" > conftest.c
2944 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2945 if test $? = 0 ; then
2946 if test -s conftest || test -s conftest.exe ; then
2952 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2953 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2960 # Decide which environment variable is used to find dynamic libraries.
2962 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2963 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2964 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2965 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2968 # On systems where the dynamic library environment variable is PATH,
2969 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2970 # built executables to PATH.
2971 if test "$RPATH_ENVVAR" = PATH; then
2972 GCC_SHLIB_SUBDIR=/shlib
2977 # Adjust the toplevel makefile according to whether bootstrap was selected.
2978 case $enable_bootstrap in
2980 bootstrap_suffix=bootstrap
2981 BUILD_CONFIG=bootstrap-debug
2984 bootstrap_suffix=no-bootstrap
2989 AC_MSG_CHECKING(for default BUILD_CONFIG)
2991 AC_ARG_WITH([build-config],
2992 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2993 [use config/NAME.mk build configuration])],
2994 [case $with_build_config in
2995 yes) with_build_config= ;;
2996 no) with_build_config= BUILD_CONFIG= ;;
2999 if test "x${with_build_config}" != x; then
3000 BUILD_CONFIG=$with_build_config
3002 case $BUILD_CONFIG in
3004 if echo "int f (void) { return 0; }" > conftest.c &&
3005 ${CC} -c conftest.c &&
3006 mv conftest.o conftest.o.g0 &&
3007 ${CC} -c -g conftest.c &&
3008 mv conftest.o conftest.o.g &&
3009 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
3014 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
3018 AC_MSG_RESULT($BUILD_CONFIG)
3019 AC_SUBST(BUILD_CONFIG)
3021 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
3022 AC_MSG_CHECKING([for --enable-vtable-verify])
3023 AC_ARG_ENABLE(vtable-verify,
3024 [AS_HELP_STRING([--enable-vtable-verify],
3025 [Enable vtable verification feature])],
3026 [case "$enableval" in
3027 yes) enable_vtable_verify=yes ;;
3028 no) enable_vtable_verify=no ;;
3029 *) enable_vtable_verify=no;;
3031 [enable_vtable_verify=no])
3032 AC_MSG_RESULT($enable_vtable_verify)
3034 # Record target_configdirs and the configure arguments for target and
3035 # build configuration in Makefile.
3036 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
3037 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
3038 bootstrap_fixincludes=no
3040 # If we are building libgomp, bootstrap it.
3041 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
3042 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
3045 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
3046 # or bootstrap-ubsan, bootstrap it.
3047 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
3048 case "$BUILD_CONFIG" in
3049 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
3050 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
3051 bootstrap_fixincludes=yes
3056 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
3057 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
3058 test "$enable_vtable_verify" != no; then
3059 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
3062 # If we are building libatomic and the list of enabled languages includes the
3063 # D frontend, bootstrap it.
3064 if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
3065 case ,${enable_languages}, in
3067 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
3072 # Determine whether gdb needs tk/tcl or not.
3073 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
3074 # and in that case we want gdb to be built without tk. Ugh!
3075 # In fact I believe gdb is the *only* package directly dependent on tk,
3076 # so we should be able to put the 'maybe's in unconditionally and
3077 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
3078 # 100% sure that that's safe though.
3080 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
3081 case "$enable_gdbtk" in
3085 GDB_TK="${gdb_tk}" ;;
3087 # Only add the dependency on gdbtk when GDBtk is part of the gdb
3088 # distro. Eventually someone will fix this and move Insight, nee
3089 # gdbtk to a separate directory.
3090 if test -d ${srcdir}/gdb/gdbtk ; then
3097 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
3098 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
3100 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
3101 # else does, only include them if one of these is built. The Makefile
3102 # provides the ordering, so it's enough here to add to the list.
3103 case " ${configdirs} " in
3105 configdirs="${configdirs} gnulib gdbsupport"
3108 configdirs="${configdirs} gnulib gdbsupport"
3111 configdirs="${configdirs} gnulib"
3115 # Strip out unwanted targets.
3117 # While at that, we remove Makefiles if we were started for recursive
3118 # configuration, so that the top-level Makefile reconfigures them,
3119 # like we used to do when configure itself was recursive.
3121 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
3122 # but now we're fixing up the Makefile ourselves with the additional
3123 # commands passed to AC_CONFIG_FILES. Use separate variables
3124 # extrasub-{build,host,target} not because there is any reason to split
3125 # the substitutions up that way, but only to remain below the limit of
3126 # 99 commands in a script, for HP-UX sed.
3128 # Do not nest @if/@endif or @unless/@endunless pairs, because
3129 # configure will not warn you at all.
3131 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
3132 yes:yes:*\ gold\ *:*,c++,*) ;;
3133 yes:yes:*\ gold\ *:*)
3134 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
3139 for module in ${build_configdirs} ; do
3140 if test -z "${no_recursion}" \
3141 && test -f ${build_subdir}/${module}/Makefile; then
3142 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
3143 rm -f ${build_subdir}/${module}/Makefile
3145 extrasub_build="$extrasub_build
3146 /^@if build-$module\$/d
3147 /^@endif build-$module\$/d
3148 /^@unless build-$module\$/,/^@endunless build-$module\$/d
3149 /^@if build-$module-$bootstrap_suffix\$/d
3150 /^@endif build-$module-$bootstrap_suffix\$/d
3151 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
3154 for module in ${configdirs} ; do
3155 if test -z "${no_recursion}"; then
3156 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
3157 if test -f ${file}; then
3158 echo 1>&2 "*** removing ${file} to force reconfigure"
3163 case ${module},${bootstrap_fixincludes} in
3164 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
3165 *) host_bootstrap_suffix=$bootstrap_suffix ;;
3167 extrasub_host="$extrasub_host
3169 /^@endif $module\$/d
3170 /^@unless $module\$/,/^@endunless $module\$/d
3171 /^@if $module-$host_bootstrap_suffix\$/d
3172 /^@endif $module-$host_bootstrap_suffix\$/d
3173 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
3176 for module in ${target_configdirs} ; do
3177 if test -z "${no_recursion}" \
3178 && test -f ${target_subdir}/${module}/Makefile; then
3179 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
3180 rm -f ${target_subdir}/${module}/Makefile
3183 # We only bootstrap target libraries listed in bootstrap_target_libs.
3184 case $bootstrap_target_libs in
3185 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
3186 *) target_bootstrap_suffix=no-bootstrap ;;
3189 extrasub_target="$extrasub_target
3190 /^@if target-$module\$/d
3191 /^@endif target-$module\$/d
3192 /^@unless target-$module\$/,/^@endunless target-$module\$/d
3193 /^@if target-$module-$target_bootstrap_suffix\$/d
3194 /^@endif target-$module-$target_bootstrap_suffix\$/d
3195 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
3198 # Do the final fixup along with target modules.
3199 extrasub_target="$extrasub_target
3204 if test "$enable_pgo_build" != "no"; then
3205 extrasub_build="$extrasub_build
3207 /^@endif pgo-build\$/d"
3210 # Create the serialization dependencies. This uses a temporary file.
3212 AC_ARG_ENABLE([serial-configure],
3213 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3214 [force sequential configuration of
3215 sub-packages for the host, target or build
3216 machine, or all sub-packages])])
3218 case ${enable_serial_configure} in
3220 enable_serial_build_configure=yes
3221 enable_serial_host_configure=yes
3222 enable_serial_target_configure=yes
3226 # These force 'configure's to be done one at a time, to avoid problems
3227 # with contention over a shared config.cache.
3229 if test "x${enable_serial_build_configure}" = xyes || test "x${enable_serial_host_configure}" = xyes || test "x${enable_serial_target_configure}" = xyes; then
3230 echo '# serdep.tmp' > serdep.tmp
3233 test "x${enable_serial_build_configure}" = xyes &&
3234 for item in ${build_configdirs} ; do
3237 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
3242 test "x${enable_serial_host_configure}" = xyes &&
3243 for item in ${configdirs} ; do
3246 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
3251 test "x${enable_serial_target_configure}" = xyes &&
3252 for item in ${target_configdirs} ; do
3255 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
3259 serialization_dependencies=serdep.tmp
3260 AC_SUBST_FILE(serialization_dependencies)
3262 # Base args. Strip norecursion, cache-file, srcdir, host, build,
3263 # target, nonopt, and variable assignments. These are the ones we
3264 # might not want to pass down to subconfigures. The exception being
3265 # --cache-file=/dev/null, which is used to turn off the use of cache
3266 # files altogether, and which should be passed on to subconfigures.
3267 # Also strip program-prefix, program-suffix, and program-transform-name,
3268 # so that we can pass down a consistent program-transform-name.
3274 eval "set -- $ac_configure_args"
3277 if test X"$skip_next" = X"yes"; then
3281 if test X"$keep_next" = X"yes"; then
3284 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3286 hbaseargs="$hbaseargs '$ac_arg'"
3287 bbaseargs="$bbaseargs '$ac_arg'"
3288 tbaseargs="$tbaseargs '$ac_arg'"
3293 # Handle separated arguments. Based on the logic generated by
3296 *=* | --config-cache | -C | -disable-* | --disable-* \
3297 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3298 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3299 | -with-* | --with-* | -without-* | --without-* | --x)
3314 --with-* | --without-*)
3315 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3319 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3322 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3325 lib=`echo "$libopt" | sed 's,[-_]prefix$,,'`
3328 lib=`echo "$libopt" | sed 's,[-_]type$,,'`
3337 mpc | mpfr | gmp | isl)
3338 # If we're processing --with-$lib, --with-$lib-include or
3339 # --with-$lib-lib, for one of the libs above, and target is
3340 # different from host, don't pass the current argument to any
3341 # target library's configure.
3342 if test x$is_cross_compiler = xyes; then
3347 # We don't want libintl (and co.) in anything but the host arguments.
3356 --cache-file=/dev/null | \
3357 -cache-file=/dev/null )
3358 # Handled here to avoid the test to skip args below.
3359 hbaseargs="$hbaseargs '$ac_arg'"
3360 bbaseargs="$bbaseargs '$ac_arg'"
3361 tbaseargs="$tbaseargs '$ac_arg'"
3362 # Assert: $separate_arg should always be no.
3363 keep_next=$separate_arg
3379 -program-prefix* | \
3380 -program-suffix* | \
3381 -program-transform-name* )
3382 skip_next=$separate_arg
3386 # An option. Add it.
3389 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3391 hbaseargs="$hbaseargs '$ac_arg'"
3392 if test X"$skip_barg" = Xno; then
3393 bbaseargs="$bbaseargs '$ac_arg'"
3395 if test X"$skip_targ" = Xno; then
3396 tbaseargs="$tbaseargs '$ac_arg'"
3398 keep_next=$separate_arg
3401 # Either a variable assignment, or a nonopt (triplet). Don't
3402 # pass it down; let the Makefile handle this.
3407 # Remove the initial space we just introduced and, as these will be
3408 # expanded by make, quote '$'.
3409 hbaseargs=`echo "x$hbaseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3410 bbaseargs=`echo "x$bbaseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3412 # Add in --program-transform-name, after --program-prefix and
3413 # --program-suffix have been applied to it. Autoconf has already
3414 # doubled dollar signs and backslashes in program_transform_name; we want
3415 # the backslashes un-doubled, and then the entire thing wrapped in single
3416 # quotes, because this will be expanded first by make and then by the shell.
3417 # Also, because we want to override the logic in subdir configure scripts to
3418 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3419 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3420 ${program_transform_name}
3422 gcc_transform_name=`cat conftestsed.out`
3423 rm -f conftestsed.out
3424 hbaseargs="$hbaseargs --program-transform-name='${gcc_transform_name}'"
3425 bbaseargs="$bbaseargs --program-transform-name='${gcc_transform_name}'"
3426 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3427 if test "$silent" = yes; then
3428 bbaseargs="$bbaseargs --silent"
3429 hbaseargs="$hbaseargs --silent"
3430 tbaseargs="$tbaseargs --silent"
3433 bbaseargs="$bbaseargs --disable-option-checking"
3434 hbaseargs="$hbaseargs --disable-option-checking"
3435 tbaseargs="$tbaseargs --disable-option-checking"
3437 if test "$enable_year2038" = no; then
3438 bbaseargs="$bbaseargs --disable-year2038"
3439 hbaseargs="$hbaseargs --disable-year2038"
3440 tbaseargs="$tbaseargs --disable-year2038"
3443 # Record and document user additions to sub configure arguments.
3444 AC_ARG_VAR([build_configargs],
3445 [additional configure arguments for build directories])
3446 AC_ARG_VAR([host_configargs],
3447 [additional configure arguments for host directories])
3448 AC_ARG_VAR([target_configargs],
3449 [additional configure arguments for target directories])
3451 # For the build-side libraries, we just need to pretend we're native,
3452 # and not use the same cache file. Multilibs are neither needed nor
3453 # desired. We can't even use the same cache file for all build-side
3454 # libraries, as they're compiled differently; some with C, some with
3455 # C++ or with different feature-enabling options.
3456 build_configargs="$build_configargs --cache-file=./config.cache ${bbaseargs}"
3458 # For host modules, accept cache file option, or specification as blank.
3459 case "${cache_file}" in
3461 cache_file_option="" ;;
3462 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3463 cache_file_option="--cache-file=${cache_file}" ;;
3465 cache_file_option="--cache-file=../${cache_file}" ;;
3468 # Host dirs don't like to share a cache file either, horribly enough.
3469 # This seems to be due to autoconf 2.5x stupidity.
3470 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${hbaseargs}"
3472 target_configargs="$target_configargs ${tbaseargs}"
3474 # Passing a --with-cross-host argument lets the target libraries know
3475 # whether they are being built with a cross-compiler or being built
3476 # native. However, it would be better to use other mechanisms to make the
3477 # sorts of decisions they want to make on this basis. Please consider
3478 # this option to be deprecated. FIXME.
3479 if test x${is_cross_compiler} = xyes ; then
3480 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3483 # Special user-friendly check for native x86_64-linux build, if
3484 # multilib is not explicitly enabled.
3485 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3486 x86_64-*linux*:yes:$build:$build:)
3487 # Make sure we have a development environment that handles 32-bit
3489 echo "int main () { return 0; }" > conftest.c
3490 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3491 if test $? = 0 ; then
3492 if test -s conftest || test -s conftest.exe ; then
3497 if test x${dev64} != xyes ; then
3498 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.])
3503 # Default to --enable-multilib.
3504 if test x${enable_multilib} = x ; then
3505 target_configargs="--enable-multilib ${target_configargs}"
3508 # Pass --with-newlib if appropriate. Note that target_configdirs has
3509 # changed from the earlier setting of with_newlib.
3510 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3511 target_configargs="--with-newlib ${target_configargs}"
3514 # Different target subdirs use different values of certain variables
3515 # (notably CXX). Worse, multilibs use *lots* of different values.
3516 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3517 # it doesn't automatically accept command-line overrides of them.
3518 # This means it's not safe for target subdirs to share a cache file,
3519 # which is disgusting, but there you have it. Hopefully this can be
3520 # fixed in future. It's still worthwhile to use a cache file for each
3521 # directory. I think.
3523 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3524 # We need to pass --target, as newer autoconf's requires consistency
3525 # for target_alias and gcc doesn't manage it consistently.
3526 target_configargs="--cache-file=./config.cache ${target_configargs}"
3529 case " $target_configdirs " in
3531 case " $target_configargs " in
3532 *" --with-newlib "*)
3535 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3539 # If we're not building GCC, don't discard standard headers.
3540 if test -d ${srcdir}/gcc; then
3541 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3543 if test "${build}" != "${host}"; then
3544 # On Canadian crosses, CC_FOR_TARGET will have already been set
3545 # by `configure', so we won't have an opportunity to add -Bgcc/
3546 # to it. This is right: we don't want to search that directory
3547 # for binaries, but we want the header files in there, so add
3549 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3551 # Someone might think of using the pre-installed headers on
3552 # Canadian crosses, in case the installed compiler is not fully
3553 # compatible with the compiler being built. In this case, it
3554 # would be better to flag an error than risking having
3555 # incompatible object files being constructed. We can't
3556 # guarantee that an error will be flagged, but let's hope the
3557 # compiler will do it, when presented with incompatible header
3562 case "${target}-${is_cross_compiler}" in
3563 i[[3456789]]86-*-linux*-no)
3564 # Here host == target, so we don't need to build gcc,
3565 # so we don't want to discard standard headers.
3566 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3569 # If we're building newlib, use its generic headers last, but search
3570 # for any libc-related directories first (so make it the last -B
3572 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3574 # If we're building libgloss, find the startup file, simulator library
3575 # and linker script.
3576 case " $target_configdirs " in
3578 # Look for startup file, simulator library and maybe linker script.
3579 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3580 # Look for libnosys.a in case the target needs it.
3581 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3582 # Most targets have the linker script in the source directory.
3583 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3594 x86_64-*mingw* | *-w64-mingw*)
3595 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3596 # however, use a symlink named 'mingw' in ${prefix} .
3597 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3600 # MinGW can't be handled as Cygwin above since it does not use newlib.
3601 FLAGS_FOR_TARGET=$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'
3605 # Allow the user to override the flags for
3606 # our build compiler if desired.
3607 if test x"${build}" = x"${host}" ; then
3608 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3609 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
3610 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3611 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3614 # On Canadian crosses, we'll be searching the right directories for
3615 # the previously-installed cross compiler, so don't bother to add
3616 # flags for directories within the install tree of the compiler
3617 # being built; programs in there won't even run.
3618 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3619 # Search for pre-installed headers if nothing else fits.
3620 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3623 if test "x${use_gnu_ld}" = x &&
3624 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3625 # Arrange for us to find uninstalled linker scripts.
3626 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3629 # Search for other target-specific linker scripts and such.
3632 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3634 # The VxWorks support for shared libraries is getting in
3635 # incrementally. Make sure it doesn't get activated implicitly:
3637 if test "${enable_shared-unset}" = unset ; then
3639 # So the build of libraries knows ...
3640 target_configargs="${target_configargs} --disable-shared"
3642 host_configargs="${host_configargs} --disable-shared"
3647 # Makefile fragments.
3648 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3650 eval fragval=\$$frag
3651 if test $fragval != /dev/null; then
3652 eval $frag=${srcdir}/$fragval
3655 AC_SUBST_FILE(host_makefile_frag)
3656 AC_SUBST_FILE(target_makefile_frag)
3657 AC_SUBST_FILE(alphaieee_frag)
3658 AC_SUBST_FILE(ospace_frag)
3660 # Miscellanea: directories, flags, etc.
3661 AC_SUBST(RPATH_ENVVAR)
3662 AC_SUBST(GCC_SHLIB_SUBDIR)
3664 AC_SUBST(build_tooldir)
3665 AC_SUBST(CONFIGURE_GDB_TK)
3667 AC_SUBST(INSTALL_GDB_TK)
3669 # Build module lists & subconfigure args.
3670 AC_SUBST(build_configargs)
3671 AC_SUBST(build_configdirs)
3673 # Host module lists & subconfigure args.
3674 AC_SUBST(host_configargs)
3675 AC_SUBST(configdirs)
3676 AC_SUBST(target_configdirs)
3678 # Target module lists & subconfigure args.
3679 AC_SUBST(target_configargs)
3683 AC_SUBST(AR_FOR_BUILD)
3684 AC_SUBST(AS_FOR_BUILD)
3685 AC_SUBST(CC_FOR_BUILD)
3686 AC_SUBST(CFLAGS_FOR_BUILD)
3687 AC_SUBST(CPP_FOR_BUILD)
3688 AC_SUBST(CPPFLAGS_FOR_BUILD)
3689 AC_SUBST(CXXFLAGS_FOR_BUILD)
3690 AC_SUBST(CXX_FOR_BUILD)
3691 AC_SUBST(DLLTOOL_FOR_BUILD)
3692 AC_SUBST(DSYMUTIL_FOR_BUILD)
3693 AC_SUBST(GFORTRAN_FOR_BUILD)
3694 AC_SUBST(GOC_FOR_BUILD)
3695 AC_SUBST(GDC_FOR_BUILD)
3696 AC_SUBST(LDFLAGS_FOR_BUILD)
3697 AC_SUBST(LD_FOR_BUILD)
3698 AC_SUBST(NM_FOR_BUILD)
3699 AC_SUBST(RANLIB_FOR_BUILD)
3700 AC_SUBST(WINDMC_FOR_BUILD)
3701 AC_SUBST(WINDRES_FOR_BUILD)
3703 # Generate default definitions for YACC, M4, LEX and other programs that run
3704 # on the build machine. These are used if the Makefile can't locate these
3705 # programs in objdir.
3706 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3708 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3709 case " $build_configdirs " in
3710 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3713 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3714 case " $build_configdirs " in
3715 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3718 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3719 case " $build_configdirs " in
3720 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3723 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3724 case " $build_configdirs " in
3725 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3726 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3729 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3730 case " $build_configdirs " in
3731 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3734 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3735 case " $build_configdirs " in
3736 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3739 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3740 # higher, else we use the "missing" dummy.
3741 if ${MAKEINFO} --version \
3742 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3745 MAKEINFO="$MISSING makeinfo"
3751 # FIXME: expect and dejagnu may become build tools?
3753 AC_CHECK_PROGS(EXPECT, expect, expect)
3754 case " $configdirs " in
3756 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3760 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3761 case " $configdirs " in
3763 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3769 NCN_STRICT_CHECK_TOOLS(AR, ar)
3770 NCN_STRICT_CHECK_TOOLS(AS, as)
3771 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3772 NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
3773 NCN_STRICT_CHECK_TOOLS(LD, ld)
3774 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3775 NCN_STRICT_CHECK_TOOLS(NM, nm)
3776 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3777 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3778 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3779 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3780 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3781 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3782 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3783 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3790 GDCFLAGS=${GDCFLAGS-${CFLAGS}}
3791 AC_SUBST(PKG_CONFIG_PATH)
3793 GCC_PLUGIN_OPTION(PLUGIN_OPTION)
3795 RANLIB_PLUGIN_OPTION=
3796 if test -n "$PLUGIN_OPTION"; then
3797 if $AR --help 2>&1 | grep -q "\--plugin"; then
3798 AR_PLUGIN_OPTION="$PLUGIN_OPTION"
3800 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
3801 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
3804 AC_SUBST(AR_PLUGIN_OPTION)
3805 AC_SUBST(RANLIB_PLUGIN_OPTION)
3808 AC_ARG_WITH([build-time-tools],
3809 [AS_HELP_STRING([--with-build-time-tools=PATH],
3810 [use given path to find target tools during the build])],
3811 [case x"$withval" in
3814 with_build_time_tools=
3815 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3818 [with_build_time_tools=])
3820 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3821 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3822 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3823 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3824 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3825 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3826 NCN_STRICT_CHECK_TARGET_TOOLS(GM2_FOR_TARGET, gm2)
3828 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3829 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3830 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3831 ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
3832 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3833 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3834 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3835 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3836 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3837 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3838 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3839 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3840 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3841 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3842 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3844 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3846 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3847 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3848 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3849 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3850 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3851 [gcc/xg++ -B$$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3853 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3854 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3856 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3857 GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
3858 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3859 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3860 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3861 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3862 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3863 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3864 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3865 GCC_TARGET_TOOL(gm2, GM2_FOR_TARGET, GM2,
3866 [gcc/gm2 -B$$r/$(HOST_SUBDIR)/gcc/], m2)
3867 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3868 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3869 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3870 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3871 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3872 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3873 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3874 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3875 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3876 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3877 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3879 AC_SUBST(FLAGS_FOR_TARGET)
3880 AC_SUBST(RAW_CXX_FOR_TARGET)
3882 # Certain tools may need extra flags.
3883 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3884 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3885 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3887 # When building target libraries, except in a Canadian cross, we use
3888 # the same toolchain as the compiler we just built.
3889 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3890 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3891 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3892 if test $host = $build; then
3893 case " $configdirs " in
3895 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3896 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3897 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3902 AC_SUBST(COMPILER_AS_FOR_TARGET)
3903 AC_SUBST(COMPILER_LD_FOR_TARGET)
3904 AC_SUBST(COMPILER_NM_FOR_TARGET)
3906 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3907 AC_ARG_ENABLE(maintainer-mode,
3908 [AS_HELP_STRING([--enable-maintainer-mode],
3909 [enable make rules and dependencies not useful
3910 (and sometimes confusing) to the casual installer])],
3911 USE_MAINTAINER_MODE=$enableval,
3912 USE_MAINTAINER_MODE=no)
3913 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3914 AC_SUBST(MAINTAINER_MODE_TRUE)
3915 AC_SUBST(MAINTAINER_MODE_FALSE)
3916 if test "$USE_MAINTAINER_MODE" = yes; then
3917 MAINTAINER_MODE_TRUE=
3918 MAINTAINER_MODE_FALSE='#'
3920 MAINTAINER_MODE_TRUE='#'
3921 MAINTAINER_MODE_FALSE=
3923 MAINT=$MAINTAINER_MODE_TRUE
3926 # ---------------------
3927 # GCC bootstrap support
3928 # ---------------------
3930 # Stage specific cflags for build.
3935 yes) stage1_cflags="-g -Wa,-J" ;;
3936 *) stage1_cflags="-g -J" ;;
3940 AC_SUBST(stage1_cflags)
3942 # Enable --enable-checking in stage1 of the compiler.
3943 AC_ARG_ENABLE(stage1-checking,
3944 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3945 [choose additional checking for stage1 of the compiler])],
3946 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3947 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3948 # For --disable-checking or implicit --enable-checking=release, avoid
3949 # setting --enable-checking=gc in the default stage1 checking for LTO
3950 # bootstraps. See PR62077.
3951 case $BUILD_CONFIG in
3953 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3955 stage1_checking=--enable-checking=yes,types;;
3957 if test "x$enable_checking" = x && \
3958 test -d ${srcdir}/gcc && \
3959 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3960 stage1_checking=--enable-checking=yes,types,extra
3963 stage1_checking=--enable-checking=$enable_checking,types
3965 AC_SUBST(stage1_checking)
3967 # Enable -Werror in bootstrap stage2 and later.
3968 AC_ARG_ENABLE(werror,
3969 [AS_HELP_STRING([--enable-werror],
3970 [enable -Werror in bootstrap stage2 and later])],
3972 case ${enable_werror} in
3973 yes) stage2_werror_flag="--enable-werror-always" ;;
3974 *) stage2_werror_flag="" ;;
3978 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3979 case $BUILD_CONFIG in
3981 stage2_werror_flag="--enable-werror-always" ;;
3983 stage2_werror_flag="--enable-werror-always" ;;
3988 AC_SUBST(stage2_werror_flag)
3990 # Specify what files to not compare during bootstrap.
3992 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3993 compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/M2Version*"
3994 compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/SYSTEM*"
3995 compare_exclusions="$compare_exclusions | gcc/m2/gm2version*"
3997 hppa*64*-*-hpux*) ;;
3998 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
4000 AC_SUBST(compare_exclusions)
4002 AC_CONFIG_FILES([Makefile],
4003 [sed "$extrasub_build" Makefile |
4004 sed "$extrasub_host" |
4005 sed "$extrasub_target" > mf$$
4006 mv -f mf$$ Makefile],
4007 [extrasub_build="$extrasub_build"
4008 extrasub_host="$extrasub_host"
4009 extrasub_target="$extrasub_target"])