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/gcc-plugin.m4)
27 m4_include(config/ax_cxx_compile_stdcxx.m4)
28 m4_include([libtool.m4])
29 m4_include([ltoptions.m4])
30 m4_include([ltsugar.m4])
31 m4_include([ltversion.m4])
32 m4_include([lt~obsolete.m4])
33 m4_include([config/isl.m4])
35 AC_INIT(move-if-change)
36 AC_DISABLE_OPTION_CHECKING
39 # if PWD already has a value, it is probably wrong.
40 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
42 # Export original configure arguments for use by sub-configures.
43 # Quote arguments with shell meta charatcers.
44 TOPLEVEL_CONFIGURE_ARGUMENTS=
45 set -- "$progname" "$@"
49 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
50 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
51 # if the argument is of the form -foo=baz, quote the baz part only
52 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
55 # Add the quoted argument to the list.
56 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
58 if test "$silent" = yes; then
59 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
61 # Remove the initial space we just introduced and, as these will be
62 # expanded by make, quote '$'.
63 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
64 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
66 # Find the build, host, and target systems.
67 ACX_NONCANONICAL_BUILD
69 ACX_NONCANONICAL_TARGET
71 dnl Autoconf 2.5x and later will set a default program prefix if
72 dnl --target was used, even if it was the same as --host. Disable
73 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
75 test "$host_noncanonical" = "$target_noncanonical" &&
76 test "$program_prefix$program_suffix$program_transform_name" = \
78 program_transform_name=s,y,y,
83 m4_pattern_allow([^AS_FOR_TARGET$])dnl
84 m4_pattern_allow([^AS_FOR_BUILD$])dnl
86 # Get 'install' or 'install-sh' and its variants.
93 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
95 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
97 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
98 INSTALL="${srcpwd}/install-sh -c"
101 # Set srcdir to "." if that's what it is.
102 # This is important for multilib support.
104 if test "${pwd}" = "${srcpwd}" ; then
112 ### To add a new directory to the tree, first choose whether it is a target
113 ### or a host dependent tool. Then put it into the appropriate list
114 ### (library or tools, host or target), doing a dependency sort.
116 # Subdirs will be configured in the order listed in build_configdirs,
117 # configdirs, or target_configdirs; see the serialization section below.
119 # Dependency sorting is only needed when *configuration* must be done in
120 # a particular order. In all cases a dependency should be specified in
121 # the Makefile, whether or not it's implicitly specified here.
123 # Double entries in build_configdirs, configdirs, or target_configdirs may
124 # cause circular dependencies and break everything horribly.
126 # these library is used by various programs built for the build
129 build_libs="build-libiberty build-libcpp"
131 # these tools are built for the build environment
132 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
134 # these libraries are used by various programs built for the host environment
136 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf libsframe"
138 # these tools are built for the host environment
139 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
140 # know that we are building the simulator.
141 # binutils, gas and ld appear in that order because it makes sense to run
142 # "make check" in that particular order.
143 # If --enable-gold is used, "gold" may replace "ld".
144 host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools c++tools"
146 # these libraries are built for the target environment, and are built after
147 # the host libraries and the host tools (which may be a cross compiler)
148 # Note that libiberty is not a target library.
149 target_libraries="target-libgcc \
150 target-libbacktrace \
154 target-liboffloadmic \
157 target-libstdc++-v3 \
158 target-libsanitizer \
170 # these tools are built using the target libraries, and are intended to
171 # run only in the target environment
173 # note: any program that *uses* libraries that are in the "target_libraries"
174 # list belongs in this list.
176 target_tools="target-rda"
178 ################################################################################
180 ## All tools belong in one of the four categories, and are assigned above
181 ## We assign ${configdirs} this way to remove all embedded newlines. This
182 ## is important because configure will choke if they ever get through.
183 ## ${configdirs} is directories we build using the host tools.
184 ## ${target_configdirs} is directories we build using the target tools.
185 configdirs=`echo ${host_libs} ${host_tools}`
186 target_configdirs=`echo ${target_libraries} ${target_tools}`
187 build_configdirs=`echo ${build_libs} ${build_tools}`
189 m4_divert_text([PARSE_ARGS],
192 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
193 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
194 m4_popdef([AS_MESSAGE_LOG_FD])dnl
197 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
200 ################################################################################
202 srcname="gnu development package"
204 # This gets set non-empty for some net releases of packages.
207 # Define is_cross_compiler to save on calls to 'test'.
209 if test x"${host}" = x"${target}" ; then
212 is_cross_compiler=yes
215 # Find the build and target subdir names.
217 # Be sure to cover against remnants of an in-tree build.
218 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
219 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
220 Use a pristine source tree when building in a separate tree])
223 # Skipdirs are removed silently.
225 # Noconfigdirs are removed loudly.
229 # Make sure we don't let GNU ld be added if we didn't want it.
230 if test x$with_gnu_ld = xno ; then
232 noconfigdirs="$noconfigdirs ld gold"
236 # Make sure we don't let GNU as be added if we didn't want it.
237 if test x$with_gnu_as = xno ; then
239 noconfigdirs="$noconfigdirs gas"
243 AC_ARG_WITH(system-zlib,
244 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
245 # Make sure we don't let ZLIB be added if we didn't want it.
246 if test x$with_system_zlib = xyes ; then
248 noconfigdirs="$noconfigdirs zlib"
251 # Don't compile the bundled readline/libreadline.a if --with-system-readline
253 if test x$with_system_readline = xyes ; then
254 noconfigdirs="$noconfigdirs readline"
258 [AS_HELP_STRING([--with-zstd], [Support zstd compressed debug sections (default=auto)])])
260 # some tools are so dependent upon X11 that if we're not building with X,
261 # it's not even worth trying to configure, much less build, that tool.
264 yes | "") ;; # the default value for this tree is that X11 is available
266 skipdirs="${skipdirs} tk itcl libgui"
267 # We won't be able to build gdbtk without X.
270 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
273 # Some are only suitable for cross toolchains.
274 # Remove these if host=target.
275 cross_only="target-libgloss target-newlib target-opcodes"
277 case $is_cross_compiler in
278 no) skipdirs="${skipdirs} ${cross_only}" ;;
281 # If both --with-headers and --with-libs are specified, default to
283 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
284 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
285 if test x"${with_newlib}" = x ; then
290 # Recognize --with-newlib/--without-newlib.
291 case ${with_newlib} in
292 no) skipdirs="${skipdirs} target-newlib" ;;
293 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
296 AC_ARG_ENABLE(as-accelerator-for,
297 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
298 [build as offload target compiler.
299 Specify offload host triple by ARG])])
301 AC_ARG_ENABLE(offload-targets,
302 [AS_HELP_STRING([--enable-offload-targets=LIST],
303 [enable offloading to devices from comma-separated LIST of
304 TARGET[=DIR]. Use optional path to find offload target compiler
307 if test x"$enable_offload_targets" = x; then
308 AC_MSG_ERROR([no offload targets specified])
310 ], [enable_offload_targets=])
312 AC_ARG_ENABLE(offload-defaulted,
313 [AS_HELP_STRING([--enable-offload-defaulted]
314 [If enabled, configured but not installed offload compilers and
315 libgomp plugins are silently ignored. Useful for distribution
316 compilers where those are in separate optional packages.])],
317 [enable_offload_defaulted=$enableval],
318 [enable_offload_defaulted=])
320 # Handle --enable-gold, --enable-ld.
321 # --disable-gold [--enable-ld]
322 # Build only ld. Default option.
323 # --enable-gold [--enable-ld]
324 # Build both gold and ld. Install gold as "ld.gold", install ld
325 # as "ld.bfd" and "ld".
326 # --enable-gold=default [--enable-ld]
327 # Build both gold and ld. Install gold as "ld.gold" and "ld",
328 # install ld as "ld.bfd".
329 # --enable-gold[=default] --disable-ld
330 # Build only gold, which is then installed as both "ld.gold" and "ld".
331 # --enable-gold --enable-ld=default
332 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
334 # In other words, ld is default
335 # --enable-gold=default --enable-ld=default
340 [AS_HELP_STRING([[--enable-gold[=ARG]]],
341 [build gold @<:@ARG={default,yes,no}@:>@])],
342 ENABLE_GOLD=$enableval,
344 case "${ENABLE_GOLD}" in
346 # Check for ELF target.
349 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
350 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
351 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
352 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
354 *-*-linux*aout* | *-*-linux*oldld*)
362 if test "$is_elf" = "yes"; then
363 # Check for target supported by gold.
365 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
366 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-* | loongarch*-*-*)
367 configdirs="$configdirs gold"
368 if test x${ENABLE_GOLD} = xdefault; then
379 AC_MSG_ERROR([invalid --enable-gold argument])
384 [AS_HELP_STRING([[--enable-ld[=ARG]]],
385 [build ld @<:@ARG={default,yes,no}@:>@])],
386 ENABLE_LD=$enableval,
389 case "${ENABLE_LD}" in
391 if test x${default_ld} != x; then
392 AC_MSG_ERROR([either gold or ld can be the default ld])
398 if test x${ENABLE_GOLD} != xyes; then
399 AC_MSG_WARN([neither ld nor gold are enabled])
401 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
404 AC_MSG_ERROR([invalid --enable-ld argument])
408 AC_ARG_ENABLE(gprofng,
409 [AS_HELP_STRING([[--enable-gprofng[=ARG]]],
410 [build gprofng @<:@ARG={yes,no}@:>@])],
411 enable_gprofng=$enableval,
413 if test "$enable_gprofng" = "yes"; then
415 x86_64-*-linux* | i?86-*-linux* | aarch64-*-linux*)
416 configdirs="$configdirs gprofng"
423 # Decide the default method for compressing debug sections.
424 # Provide a configure time option to override our default.
425 AC_ARG_ENABLE(compressed_debug_sections,
426 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
427 [Enable compressed debug sections for gas, gold or ld by
430 if test x"$enable_compressed_debug_sections" = xyes; then
431 AC_MSG_ERROR([no program with compressed debug sections specified])
433 ], [enable_compressed_debug_sections=])
435 # Select default compression algorithm.
436 AC_ARG_ENABLE(default_compressed_debug_sections_algorithm,
437 [AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}],
438 [Default compression algorithm for --enable-compressed-debug-sections.])],
439 [], [default_compressed_debug_sections_algorithm=])
441 # Configure extra directories which are host specific
445 configdirs="$configdirs libtermcap" ;;
448 # A target can indicate whether a language isn't supported for some reason.
449 # Only spaces may be used in this macro; not newlines or tabs.
450 unsupported_languages=
452 # Remove more programs from consideration, based on the host or
453 # target this usually means that a port of the program doesn't
457 i[[3456789]]86-*-msdosdjgpp*)
458 noconfigdirs="$noconfigdirs tcl tk itcl"
462 # Default to --disable-year2038 until we can handle differences between
463 # projects that use gnulib (which understands year 2038) and projects that
465 AC_ARG_ENABLE(year2038,
466 AS_HELP_STRING([--enable-year2038],
467 [enable support for timestamps past the year 2038]),
468 ENABLE_YEAR2038=$enableval,
471 if test "${ENABLE_YEAR2038}" = "no" ; then
475 AC_ARG_ENABLE(libquadmath,
476 AS_HELP_STRING([--disable-libquadmath],
477 [do not build libquadmath directory]),
478 ENABLE_LIBQUADMATH=$enableval,
479 ENABLE_LIBQUADMATH=yes)
480 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
481 noconfigdirs="$noconfigdirs target-libquadmath"
485 AC_ARG_ENABLE(libquadmath-support,
486 AS_HELP_STRING([--disable-libquadmath-support],
487 [disable libquadmath support for Fortran]),
488 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
489 ENABLE_LIBQUADMATH_SUPPORT=yes)
490 enable_libquadmath_support=
491 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
492 enable_libquadmath_support=no
496 AC_ARG_ENABLE(libada,
497 [AS_HELP_STRING([--enable-libada], [build libada directory])],
498 ENABLE_LIBADA=$enableval,
500 if test "${ENABLE_LIBADA}" != "yes" ; then
501 noconfigdirs="$noconfigdirs gnattools"
504 AC_ARG_ENABLE(libssp,
505 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
506 ENABLE_LIBSSP=$enableval,
509 AC_ARG_ENABLE(libstdcxx,
510 AS_HELP_STRING([--disable-libstdcxx],
511 [do not build libstdc++-v3 directory]),
512 ENABLE_LIBSTDCXX=$enableval,
513 ENABLE_LIBSTDCXX=default)
514 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
515 noconfigdirs="$noconfigdirs target-libstdc++-v3"
518 # If this is accelerator compiler and its target is intelmic we enable
519 # target liboffloadmic by default. If this is compiler with offloading
520 # for intelmic we enable host liboffloadmic by default. Otherwise
521 # liboffloadmic is disabled by default.
522 AC_ARG_ENABLE([liboffloadmic],
523 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
524 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
525 [case "$enableval" in
527 enable_liboffloadmic=$enableval ;;
529 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
531 [if test x"$enable_as_accelerator_for" != x; then
533 *-intelmic-* | *-intelmicemul-*)
534 enable_liboffloadmic=target
535 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
538 enable_liboffloadmic=no
542 case "${enable_offload_targets}" in
543 *-intelmic-* | *-intelmicemul-*)
544 enable_liboffloadmic=host
545 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
548 enable_liboffloadmic=no
552 AC_SUBST(extra_liboffloadmic_configure_flags)
554 # Enable libgomp by default on hosted POSIX systems, and a few others.
555 if test x$enable_libgomp = x ; then
557 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
559 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
561 *-*-solaris2* | *-*-hpux11*)
563 *-*-darwin* | *-*-aix*)
565 nvptx*-*-* | amdgcn*-*-*)
568 noconfigdirs="$noconfigdirs target-libgomp"
573 # Disable libatomic on unsupported systems.
574 if test -d ${srcdir}/libatomic; then
575 if test x$enable_libatomic = x; then
576 AC_MSG_CHECKING([for libatomic support])
577 if (srcdir=${srcdir}/libatomic; \
578 . ${srcdir}/configure.tgt; \
579 test -n "$UNSUPPORTED")
582 noconfigdirs="$noconfigdirs target-libatomic"
589 # Disable liboffloadmic on unsupported systems.
590 if test -d ${srcdir}/liboffloadmic; then
591 if test x$enable_liboffloadmic != xno; then
592 AC_MSG_CHECKING([for liboffloadmic support])
593 if (srcdir=${srcdir}/liboffloadmic; \
594 . ${srcdir}/configure.tgt; \
595 test -n "$UNSUPPORTED")
598 noconfigdirs="$noconfigdirs target-liboffloadmic"
605 # Disable libitm on unsupported systems.
606 if test -d ${srcdir}/libitm; then
607 if test x$enable_libitm = x; then
608 AC_MSG_CHECKING([for libitm support])
609 if (srcdir=${srcdir}/libitm; \
610 . ${srcdir}/configure.tgt; \
611 test -n "$UNSUPPORTED")
614 noconfigdirs="$noconfigdirs target-libitm"
621 # Disable libsanitizer on unsupported systems.
622 if test -d ${srcdir}/libsanitizer; then
623 if test x$enable_libsanitizer = x; then
624 AC_MSG_CHECKING([for libsanitizer support])
625 if (srcdir=${srcdir}/libsanitizer; \
626 . ${srcdir}/configure.tgt; \
627 test -n "$UNSUPPORTED")
630 noconfigdirs="$noconfigdirs target-libsanitizer"
637 # Disable libvtv on unsupported systems.
638 if test -d ${srcdir}/libvtv; then
639 if test x$enable_libvtv = x; then
640 AC_MSG_CHECKING([for libvtv support])
641 if (srcdir=${srcdir}/libvtv; \
642 . ${srcdir}/configure.tgt; \
643 test "$VTV_SUPPORTED" != "yes")
646 noconfigdirs="$noconfigdirs target-libvtv"
653 # Disable libquadmath for some systems.
656 noconfigdirs="$noconfigdirs target-libquadmath"
658 # libquadmath is unused on AIX and libquadmath build process use of
659 # LD_LIBRARY_PATH can break AIX bootstrap.
660 powerpc-*-aix* | rs6000-*-aix*)
661 noconfigdirs="$noconfigdirs target-libquadmath"
665 # Disable libssp for some systems.
668 # No hosted I/O support.
669 noconfigdirs="$noconfigdirs target-libssp"
672 noconfigdirs="$noconfigdirs target-libssp"
674 powerpc-*-aix* | rs6000-*-aix*)
675 noconfigdirs="$noconfigdirs target-libssp"
678 # No hosted I/O support.
679 noconfigdirs="$noconfigdirs target-libssp"
682 # libssp uses a misaligned load to trigger a fault, but the RL78
683 # doesn't fault for those - instead, it gives a build-time error
684 # for explicit misaligned loads.
685 noconfigdirs="$noconfigdirs target-libssp"
688 # No hosted I/O support.
689 noconfigdirs="$noconfigdirs target-libssp"
693 # Disable libstdc++-v3 for some systems.
694 # Allow user to override this if they pass --enable-libstdcxx
695 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
698 # VxWorks uses the Dinkumware C++ library.
699 noconfigdirs="$noconfigdirs target-libstdc++-v3"
702 # Not ported/fails to build when using newlib.
703 noconfigdirs="$noconfigdirs target-libstdc++-v3"
706 # the C++ libraries don't build on top of CE's C libraries
707 noconfigdirs="$noconfigdirs target-libstdc++-v3"
710 noconfigdirs="$noconfigdirs target-libstdc++-v3"
713 noconfigdirs="$noconfigdirs target-libstdc++-v3"
716 noconfigdirs="$noconfigdirs target-libstdc++-v3"
721 # Disable C++ on systems where it is known to not work.
722 # For testing, you can override this with --enable-languages=c++.
723 case ,${enable_languages}, in
729 unsupported_languages="$unsupported_languages c++"
735 # Disable Objc on systems where it is known to not work.
736 # For testing, you can override this with --enable-languages=objc.
737 case ,${enable_languages}, in
743 unsupported_languages="$unsupported_languages objc"
749 # Disable D on systems where it is known to not work.
750 # For testing, you can override this with --enable-languages=d.
751 case ,${enable_languages}, in
757 unsupported_languages="$unsupported_languages d"
763 # Disable libphobos on unsupported systems.
764 # For testing, you can override this with --enable-libphobos.
765 if test -d ${srcdir}/libphobos; then
766 if test x$enable_libphobos = x; then
767 AC_MSG_CHECKING([for libphobos support])
768 if (srcdir=${srcdir}/libphobos; \
769 . ${srcdir}/configure.tgt; \
770 test "$LIBPHOBOS_SUPPORTED" != "yes")
773 noconfigdirs="$noconfigdirs target-libphobos"
780 # Disable Fortran for some systems.
783 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
784 unsupported_languages="$unsupported_languages fortran"
787 unsupported_languages="$unsupported_languages fortran"
791 # Disable libffi for some systems.
795 i[[3456789]]86-*-darwin*)
797 x86_64-*-darwin[[912]]*)
800 noconfigdirs="$noconfigdirs target-libffi"
803 noconfigdirs="$noconfigdirs target-libffi"
806 noconfigdirs="$noconfigdirs target-libffi"
809 noconfigdirs="$noconfigdirs target-libffi"
812 noconfigdirs="$noconfigdirs target-libffi"
815 noconfigdirs="$noconfigdirs target-libffi"
818 noconfigdirs="$noconfigdirs target-libffi"
821 noconfigdirs="$noconfigdirs target-libffi"
824 noconfigdirs="$noconfigdirs target-libffi"
827 noconfigdirs="$noconfigdirs target-libffi"
830 noconfigdirs="$noconfigdirs target-libffi"
833 noconfigdirs="$noconfigdirs target-libffi"
836 noconfigdirs="$noconfigdirs target-libffi"
838 cris-*-* | crisv32-*-*)
842 *) # See PR46792 regarding target-libffi.
843 noconfigdirs="$noconfigdirs target-libffi";;
847 noconfigdirs="$noconfigdirs target-libffi"
852 noconfigdirs="$noconfigdirs target-libffi"
855 noconfigdirs="$noconfigdirs target-libffi"
857 i[[3456789]]86-w64-mingw*)
858 noconfigdirs="$noconfigdirs target-libffi"
860 i[[3456789]]86-*-mingw*)
861 noconfigdirs="$noconfigdirs target-libffi"
864 noconfigdirs="$noconfigdirs target-libffi"
867 noconfigdirs="$noconfigdirs target-libffi"
874 noconfigdirs="$noconfigdirs target-libffi"
877 noconfigdirs="$noconfigdirs target-libffi"
881 # Disable the go frontend on systems where it is known to not work. Please keep
882 # this in sync with contrib/config-list.mk.
884 *-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
885 unsupported_languages="$unsupported_languages go"
889 # Only allow gdbserver on some systems.
890 if test -d ${srcdir}/gdbserver; then
891 if test x$enable_gdbserver = x; then
892 AC_MSG_CHECKING([for gdbserver support])
893 if (srcdir=${srcdir}/gdbserver; \
894 . ${srcdir}/configure.srv; \
895 test -n "$UNSUPPORTED")
898 noconfigdirs="$noconfigdirs gdbserver"
905 # Disable libgo for some systems where it is known to not work.
906 # For testing, you can easily override this with --enable-libgo.
907 if test x$enable_libgo = x; then
911 noconfigdirs="$noconfigdirs target-libgo"
913 *-*-cygwin* | *-*-mingw*)
914 noconfigdirs="$noconfigdirs target-libgo"
917 noconfigdirs="$noconfigdirs target-libgo"
922 # Default libgloss CPU subdirectory.
923 libgloss_dir="$target_cpu"
926 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
935 cris-*-* | crisv32-*-*)
945 libgloss_dir=loongarch
947 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
967 # Disable newlib and libgloss for various target OSes.
970 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
972 i[[3456789]]86-*-linux*)
973 # This section makes it possible to build newlib natively on linux.
974 # If we are using a cross compiler then don't configure newlib.
975 if test x${is_cross_compiler} != xno ; then
976 noconfigdirs="$noconfigdirs target-newlib"
978 noconfigdirs="$noconfigdirs target-libgloss"
979 # If we are not using a cross compiler, do configure newlib.
980 # Note however, that newlib will only be configured in this situation
981 # if the --with-newlib option has been given, because otherwise
982 # 'target-newlib' will appear in skipdirs.
984 i[[3456789]]86-*-rdos*)
985 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
987 sh*-*-pe|mips*-*-pe|arm-wince-pe)
988 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
991 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
994 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
997 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1000 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1003 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1006 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1009 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1011 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
1012 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1015 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1018 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1021 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1024 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1027 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1030 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1033 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1041 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1042 noconfigdirs="$noconfigdirs sim target-rda"
1047 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1048 noconfigdirs="$noconfigdirs sim target-rda"
1051 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1052 noconfigdirs="$noconfigdirs sim target-rda"
1054 i[[3456789]]86-*-darwin*)
1055 noconfigdirs="$noconfigdirs ld gprof"
1056 noconfigdirs="$noconfigdirs sim target-rda"
1058 x86_64-*-darwin[[912]]*)
1059 noconfigdirs="$noconfigdirs ld gas gprof"
1060 noconfigdirs="$noconfigdirs sim target-rda"
1063 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1064 noconfigdirs="$noconfigdirs sim target-rda"
1069 if test "x$with_gmp" = x \
1070 && ! test -d ${srcdir}/gmp \
1071 && test -f /usr/local/include/gmp.h; then
1076 # Remove unsupported stuff on all kaOS configurations.
1077 noconfigdirs="$noconfigdirs target-libgloss"
1084 noconfigdirs="$noconfigdirs target-libgloss"
1087 noconfigdirs="$noconfigdirs target-libgloss"
1089 # The tpf target doesn't support gdb yet.
1091 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
1094 noconfigdirs="$noconfigdirs target-rda"
1099 # ld works, but does not support shared libraries.
1100 # gas doesn't generate exception information.
1101 noconfigdirs="$noconfigdirs gas ld"
1104 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1107 # newlib is not 64 bit ready
1108 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1111 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1113 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1114 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1117 noconfigdirs="$noconfigdirs sim"
1120 noconfigdirs="$noconfigdirs target-libgloss"
1123 noconfigdirs="$noconfigdirs ld target-libgloss"
1126 if test x${with_avrlibc} != xno; then
1127 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1130 c4x-*-* | tic4x-*-*)
1131 noconfigdirs="$noconfigdirs target-libgloss"
1134 noconfigdirs="$noconfigdirs target-libgloss gdb"
1137 noconfigdirs="$noconfigdirs target-libgloss"
1140 noconfigdirs="$noconfigdirs gdb"
1143 noconfigdirs="$noconfigdirs gdb"
1146 noconfigdirs="$noconfigdirs target-rda gprof"
1149 noconfigdirs="$noconfigdirs"
1152 noconfigdirs="$noconfigdirs target-libgloss"
1155 noconfigdirs="$noconfigdirs target-libgloss"
1157 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1160 noconfigdirs="$noconfigdirs gdb"
1163 noconfigdirs="$noconfigdirs gdb ld"
1171 hppa*-*-openbsd* | \
1177 noconfigdirs="$noconfigdirs ld"
1180 noconfigdirs="$noconfigdirs gdb"
1183 # No gdb support yet.
1184 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1187 # No ld support yet.
1188 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1191 # No ld support yet.
1192 noconfigdirs="$noconfigdirs libgui itcl ld"
1194 i[[3456789]]86-w64-mingw*)
1196 i[[3456789]]86-*-mingw*)
1197 target_configdirs="$target_configdirs target-winsup"
1200 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1201 noconfigdirs="$noconfigdirs target-libgloss"
1202 # always build newlib if winsup directory is present.
1203 if test -d "$srcdir/winsup/cygwin"; then
1204 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1205 elif test -d "$srcdir/newlib"; then
1206 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1209 i[[3456789]]86-*-pe)
1210 noconfigdirs="$noconfigdirs target-libgloss"
1212 i[[3456789]]86-*-sco3.2v5*)
1213 # The linker does not yet know about weak symbols in COFF,
1214 # and is not configured to handle mixed ELF and COFF.
1215 noconfigdirs="$noconfigdirs ld target-libgloss"
1217 i[[3456789]]86-*-sco*)
1218 noconfigdirs="$noconfigdirs gprof target-libgloss"
1220 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1221 noconfigdirs="$noconfigdirs target-libgloss"
1223 i[[3456789]]86-*-sysv4*)
1224 noconfigdirs="$noconfigdirs target-libgloss"
1226 i[[3456789]]86-*-beos*)
1227 noconfigdirs="$noconfigdirs gdb"
1229 i[[3456789]]86-*-rdos*)
1230 noconfigdirs="$noconfigdirs gdb"
1233 noconfigdirs="$noconfigdirs gdb"
1236 noconfigdirs="$noconfigdirs sim"
1239 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1240 noconfigdirs="$noconfigdirs $target_libraries"
1243 noconfigdirs="$noconfigdirs gdb gprof"
1246 # copied from rs6000-*-* entry
1247 noconfigdirs="$noconfigdirs gprof"
1249 powerpc*-*-winnt* | powerpc*-*-pe*)
1250 target_configdirs="$target_configdirs target-winsup"
1251 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1252 # always build newlib.
1253 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1255 # This is temporary until we can link against shared libraries
1256 powerpcle-*-solaris*)
1257 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1260 noconfigdirs="$noconfigdirs gdb"
1263 noconfigdirs="$noconfigdirs gprof"
1266 noconfigdirs="$noconfigdirs gprof"
1269 noconfigdirs="$noconfigdirs gprof"
1272 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1275 noconfigdirs="$noconfigdirs gprof"
1277 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1278 if test x$with_newlib = xyes; then
1279 noconfigdirs="$noconfigdirs gprof"
1283 noconfigdirs="$noconfigdirs gprof target-libgloss"
1286 noconfigdirs="$noconfigdirs gprof target-libgloss"
1289 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1293 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1294 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1295 noconfigdirs="$noconfigdirs ld gas gprof"
1298 noconfigdirs="$noconfigdirs gprof"
1301 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1308 noconfigdirs="$noconfigdirs target-libgloss" ;;
1312 if test x${is_cross_compiler} = xno ; then
1317 noconfigdirs="$noconfigdirs sim"
1319 tilepro*-*-* | tilegx*-*-*)
1320 noconfigdirs="$noconfigdirs sim"
1323 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1326 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1329 noconfigdirs="$noconfigdirs ld"
1331 loongarch*-*-linux*)
1334 noconfigdirs="$noconfigdirs gprof"
1338 # If we aren't building newlib, then don't build libgloss, since libgloss
1339 # depends upon some newlib header files.
1340 case "${noconfigdirs}" in
1341 *target-libgloss*) ;;
1342 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1345 # Work in distributions that contain no compiler tools, like Autoconf.
1346 host_makefile_frag=/dev/null
1347 if test -d ${srcdir}/config ; then
1349 i[[3456789]]86-*-msdosdjgpp*)
1350 host_makefile_frag="config/mh-djgpp"
1353 ACX_CHECK_CYGWIN_CAT_WORKS
1354 host_makefile_frag="config/mh-cygwin"
1357 host_makefile_frag="config/mh-mingw"
1360 host_makefile_frag="config/mh-alpha-linux"
1363 host_makefile_frag="config/mh-pa-hpux10"
1366 host_makefile_frag="config/mh-pa"
1369 host_makefile_frag="config/mh-pa"
1371 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
1372 host_makefile_frag="config/mh-darwin"
1375 host_makefile_frag="config/mh-ppc-aix"
1378 host_makefile_frag="config/mh-ppc-aix"
1383 if test "${build}" != "${host}" ; then
1384 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1385 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1386 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1387 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
1388 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1389 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
1390 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1391 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1392 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1393 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1394 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1395 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1396 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1397 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1398 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1400 AR_FOR_BUILD="\$(AR)"
1401 AS_FOR_BUILD="\$(AS)"
1402 CC_FOR_BUILD="\$(CC)"
1403 CXX_FOR_BUILD="\$(CXX)"
1404 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
1405 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1406 GOC_FOR_BUILD="\$(GOC)"
1407 GDC_FOR_BUILD="\$(GDC)"
1408 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1409 LD_FOR_BUILD="\$(LD)"
1410 NM_FOR_BUILD="\$(NM)"
1411 RANLIB_FOR_BUILD="\$(RANLIB)"
1412 WINDRES_FOR_BUILD="\$(WINDRES)"
1413 WINDMC_FOR_BUILD="\$(WINDMC)"
1419 # We must set the default linker to the linker used by gcc for the correct
1420 # operation of libtool. If LD is not defined and we are using gcc, try to
1421 # set the LD default to the ld used by gcc.
1422 if test -z "$LD"; then
1423 if test "$GCC" = yes; then
1426 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1428 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1430 case $gcc_prog_ld in
1431 # Accept absolute paths.
1432 [[\\/]* | [A-Za-z]:[\\/]*)]
1433 LD="$gcc_prog_ld" ;;
1438 # Check whether -static-libstdc++ -static-libgcc is supported.
1440 if test "$GCC" = yes; then
1441 saved_LDFLAGS="$LDFLAGS"
1443 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1444 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1446 AC_LINK_IFELSE([AC_LANG_SOURCE([
1447 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1448 #error -static-libstdc++ not implemented
1451 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1452 [AC_MSG_RESULT([no])])
1455 LDFLAGS="$saved_LDFLAGS"
1460 ACX_PROG_CMP_IGNORE_INITIAL
1462 AC_ARG_ENABLE([bootstrap],
1463 [AS_HELP_STRING([--enable-bootstrap],
1464 [enable bootstrapping @<:@yes if native build@:>@])],,
1465 enable_bootstrap=default)
1467 # Issue errors and warnings for invalid/strange bootstrap combinations.
1468 if test -r $srcdir/gcc/configure; then
1474 case "$have_compiler:$host:$target:$enable_bootstrap" in
1477 # Default behavior. Enable bootstrap if we have a compiler
1478 # and we are in a native configuration.
1479 yes:$build:$build:default)
1480 enable_bootstrap=yes ;;
1483 enable_bootstrap=no ;;
1485 # We have a compiler and we are in a native configuration, bootstrap is ok
1486 yes:$build:$build:yes)
1489 # Other configurations, but we have a compiler. Assume the user knows
1492 AC_MSG_WARN([trying to bootstrap a cross compiler])
1495 # No compiler: if they passed --enable-bootstrap explicitly, fail
1497 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1499 # Fail if wrong command line
1501 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1505 # When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
1506 # C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1507 # require C++11 (or higher).
1508 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1509 CXX="$CXX -std=c++11"
1510 elif test "$have_compiler" = yes; then
1511 AX_CXX_COMPILE_STDCXX(11)
1513 if test "${build}" != "${host}"; then
1514 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1518 AC_ARG_ENABLE([pgo-build],
1519 [AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1520 [enable the PGO build])],
1521 [enable_pgo_build=$enableval],
1522 [enable_pgo_build=no])
1524 # Issue errors and warnings for invalid/strange PGO build combinations.
1525 case "$have_compiler:$host:$target:$enable_pgo_build" in
1528 # Allow the PGO build only if we aren't building a compiler and
1529 # we are in a native configuration.
1530 no:$build:$build:yes | no:$build:$build:lto) ;;
1532 # Disallow the PGO bootstrap if we are building a compiler.
1533 yes:*:*:yes | yes:*:*:lto)
1534 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1537 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1541 if test "$enable_pgo_build" != "no"; then
1542 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1543 old_CFLAGS="$CFLAGS"
1544 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1545 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1546 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1547 [PGO_BUILD_GEN_CFLAGS=])
1548 CFLAGS="$old_CFLAGS"
1549 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1550 AC_MSG_RESULT([yes])
1551 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1554 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1557 if test "$enable_pgo_build" = "lto"; then
1558 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1559 old_CFLAGS="$CFLAGS"
1560 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1561 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1562 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1563 [PGO_BUILD_LTO_CFLAGS=])
1564 CFLAGS="$old_CFLAGS"
1565 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1566 AC_MSG_RESULT([yes])
1569 AC_MSG_WARN([LTO is disabled for the PGO build])
1573 AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1574 AC_SUBST(PGO_BUILD_USE_CFLAGS)
1575 AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1577 # Used for setting $lt_cv_objdir
1580 # Check for GMP, MPFR and MPC
1583 if test -d ${srcdir}/gcc ; then
1587 if test -d ${srcdir}/gdb ; then
1588 if test "x$enable_gdb" != xno; then
1593 gmplibs="-lmpfr -lgmp"
1594 if test x"$require_mpc" = "xyes" ; then
1595 gmplibs="-lmpc $gmplibs"
1600 # Specify a location for mpc
1601 # check for this first so it ends up on the link line before mpfr.
1603 [AS_HELP_STRING([--with-mpc=PATH],
1604 [specify prefix directory for installed MPC package.
1605 Equivalent to --with-mpc-include=PATH/include
1606 plus --with-mpc-lib=PATH/lib])])
1607 AC_ARG_WITH(mpc-include,
1608 [AS_HELP_STRING([--with-mpc-include=PATH],
1609 [specify directory for installed MPC include files])])
1610 AC_ARG_WITH(mpc-lib,
1611 [AS_HELP_STRING([--with-mpc-lib=PATH],
1612 [specify directory for the installed MPC library])])
1614 if test "x$with_mpc" != x; then
1615 gmplibs="-L$with_mpc/lib $gmplibs"
1616 gmpinc="-I$with_mpc/include $gmpinc"
1618 if test "x$with_mpc_include" != x; then
1619 gmpinc="-I$with_mpc_include $gmpinc"
1621 if test "x$with_mpc_lib" != x; then
1622 gmplibs="-L$with_mpc_lib $gmplibs"
1624 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1625 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1626 gmpinc='-I$$s/mpc/src '"$gmpinc"
1627 # Do not test the mpc version. Assume that it is sufficient, since
1628 # it is in the source tree, and the library has not been built yet
1629 # but it would be included on the link line in the version check below
1630 # hence making the test fail.
1634 # Specify a location for mpfr
1635 # check for this first so it ends up on the link line before gmp.
1637 [AS_HELP_STRING([--with-mpfr=PATH],
1638 [specify prefix directory for installed MPFR package.
1639 Equivalent to --with-mpfr-include=PATH/include
1640 plus --with-mpfr-lib=PATH/lib])])
1641 AC_ARG_WITH(mpfr-include,
1642 [AS_HELP_STRING([--with-mpfr-include=PATH],
1643 [specify directory for installed MPFR include files])])
1644 AC_ARG_WITH(mpfr-lib,
1645 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1646 [specify directory for the installed MPFR library])])
1648 if test "x$with_mpfr" != x; then
1649 gmplibs="-L$with_mpfr/lib $gmplibs"
1650 gmpinc="-I$with_mpfr/include $gmpinc"
1652 if test "x$with_mpfr_include" != x; then
1653 gmpinc="-I$with_mpfr_include $gmpinc"
1655 if test "x$with_mpfr_lib" != x; then
1656 gmplibs="-L$with_mpfr_lib $gmplibs"
1658 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1659 # MPFR v3.1.0 moved the sources into a src sub-directory.
1660 if ! test -d ${srcdir}/mpfr/src; then
1662 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1664 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1665 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1666 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1667 # Do not test the mpfr version. Assume that it is sufficient, since
1668 # it is in the source tree, and the library has not been built yet
1669 # but it would be included on the link line in the version check below
1670 # hence making the test fail.
1674 # Specify a location for gmp
1676 [AS_HELP_STRING([--with-gmp=PATH],
1677 [specify prefix directory for the installed GMP package.
1678 Equivalent to --with-gmp-include=PATH/include
1679 plus --with-gmp-lib=PATH/lib])])
1680 AC_ARG_WITH(gmp-include,
1681 [AS_HELP_STRING([--with-gmp-include=PATH],
1682 [specify directory for installed GMP include files])])
1683 AC_ARG_WITH(gmp-lib,
1684 [AS_HELP_STRING([--with-gmp-lib=PATH],
1685 [specify directory for the installed GMP library])])
1688 if test "x$with_gmp" != x; then
1689 gmplibs="-L$with_gmp/lib $gmplibs"
1690 gmpinc="-I$with_gmp/include $gmpinc"
1692 if test "x$with_gmp_include" != x; then
1693 gmpinc="-I$with_gmp_include $gmpinc"
1695 if test "x$with_gmp_lib" != x; then
1696 gmplibs="-L$with_gmp_lib $gmplibs"
1698 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1699 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1700 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1701 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1702 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1703 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1704 # Do not test the gmp version. Assume that it is sufficient, since
1705 # it is in the source tree, and the library has not been built yet
1706 # but it would be included on the link line in the version check below
1707 # hence making the test fail.
1711 if test "x$require_gmp" = xyes && test "x$have_gmp" = xno; then
1713 saved_CFLAGS="$CFLAGS"
1714 CFLAGS="$CFLAGS $gmpinc"
1715 # Check for the recommended and required versions of GMP.
1716 AC_MSG_CHECKING([for the correct version of gmp.h])
1717 AC_TRY_COMPILE([#include "gmp.h"],[
1718 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1719 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1720 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1723 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1724 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1725 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1726 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1729 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1730 [AC_MSG_RESULT([no]); have_gmp=no])
1732 # If we have GMP, check the MPFR version.
1733 if test x"$have_gmp" = xyes; then
1734 # Check for the recommended and required versions of MPFR.
1735 AC_MSG_CHECKING([for the correct version of mpfr.h])
1736 AC_TRY_COMPILE([#include <gmp.h>
1737 #include <mpfr.h>],[
1738 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
1741 ], [AC_TRY_COMPILE([#include <gmp.h>
1742 #include <mpfr.h>],[
1743 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
1746 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1747 [AC_MSG_RESULT([no]); have_gmp=no])
1750 # Check for the MPC header version.
1751 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes ; then
1752 # Check for the recommended and required versions of MPC.
1753 AC_MSG_CHECKING([for the correct version of mpc.h])
1754 AC_TRY_COMPILE([#include <mpc.h>],[
1755 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1758 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1759 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1762 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1763 [AC_MSG_RESULT([no]); have_gmp=no])
1766 # Now check the MPFR library.
1767 if test x"$have_gmp" = xyes; then
1769 LIBS="$LIBS $gmplibs"
1770 AC_MSG_CHECKING([for the correct version of the gmp/mpfr libraries])
1771 AC_TRY_LINK([#include <mpfr.h>],[
1777 mpfr_atan2 (n, n, x, MPFR_RNDN);
1778 mpfr_erfc (n, x, MPFR_RNDN);
1779 mpfr_subnormalize (x, t, MPFR_RNDN);
1782 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1786 # Now check the MPC library
1787 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes; then
1789 LIBS="$LIBS $gmplibs"
1790 AC_MSG_CHECKING([for the correct version of the mpc libraries])
1791 AC_TRY_LINK([#include <mpc.h>],[
1794 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1795 mpc_cosh (c, c, MPC_RNDNN);
1796 mpc_pow (c, c, c, MPC_RNDNN);
1797 mpc_acosh (c, c, MPC_RNDNN);
1799 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1803 CFLAGS="$saved_CFLAGS"
1805 # The library versions listed in the error message below should match
1806 # the HARD-minimums enforced above.
1807 if test x$have_gmp != xyes; then
1808 if test -d ${srcdir}/gcc ; then
1809 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
1810 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1811 their locations. Source code for these libraries can be found at
1812 their respective hosting sites as well as at
1813 https://gcc.gnu.org/pub/gcc/infrastructure/. See also
1814 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1815 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1816 make sure that you have installed both the libraries and the header
1817 files. They may be located in separate packages.])
1819 AC_MSG_ERROR([Building GDB requires GMP 4.2+, and MPFR 3.1.0+.
1820 Try the --with-gmp and/or --with-mpfr options to specify
1821 their locations. If you obtained GMP and/or MPFR from a vendor
1822 distribution package, make sure that you have installed both the libraries
1823 and the header files. They may be located in separate packages.])
1828 # Flags needed for both GMP, MPFR and/or MPC.
1831 AC_SUBST(extra_mpfr_configure_flags)
1832 AC_SUBST(extra_mpc_gmp_configure_flags)
1833 AC_SUBST(extra_mpc_mpfr_configure_flags)
1834 AC_SUBST(extra_isl_gmp_configure_flags)
1836 # Libraries to use for stage1 or when not bootstrapping.
1837 AC_ARG_WITH(stage1-libs,
1838 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1839 [if test "$withval" = "no" -o "$withval" = "yes"; then
1842 stage1_libs=$withval
1845 AC_SUBST(stage1_libs)
1847 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1848 # default is yes if gcc is being built; no otherwise. The reason for
1849 # this default is that gdb is sometimes linked against GNU Source
1850 # Highlight, which is a shared library that uses C++ exceptions. In
1851 # this case, -static-libstdc++ will cause crashes.
1852 AC_ARG_WITH(static-standard-libraries,
1853 [AS_HELP_STRING([--with-static-standard-libraries],
1854 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1855 [], [with_static_standard_libraries=auto])
1856 if test "$with_static_standard_libraries" = auto; then
1857 with_static_standard_libraries=$have_compiler
1860 # Linker flags to use for stage1 or when not bootstrapping.
1861 AC_ARG_WITH(stage1-ldflags,
1862 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1863 [if test "$withval" = "no" -o "$withval" = "yes"; then
1866 stage1_ldflags=$withval
1869 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1870 # if supported. But if the user explicitly specified the libraries to use,
1871 # trust that they are doing what they want.
1872 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1873 -a "$have_static_libs" = yes; then
1874 stage1_ldflags="-static-libstdc++ -static-libgcc"
1876 AC_SUBST(stage1_ldflags)
1878 # Libraries to use for stage2 and later builds.
1879 AC_ARG_WITH(boot-libs,
1880 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1881 [if test "$withval" = "no" -o "$withval" = "yes"; then
1884 poststage1_libs=$withval
1887 AC_SUBST(poststage1_libs)
1889 # Linker flags to use for stage2 and later builds.
1890 AC_ARG_WITH(boot-ldflags,
1891 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1892 [linker flags for stage2 and later])],
1893 [if test "$withval" = "no" -o "$withval" = "yes"; then
1896 poststage1_ldflags=$withval
1898 [poststage1_ldflags=
1899 # In stages 2 and 3, default to linking libstdc++ and libgcc
1900 # statically. But if the user explicitly specified the libraries to
1901 # use, trust that they are doing what they want.
1902 if test "$poststage1_libs" = ""; then
1903 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1905 AC_SUBST(poststage1_ldflags)
1907 # GCC GRAPHITE dependency isl.
1908 # Basic setup is inlined here, actual checks are in config/isl.m4
1913 [Specify prefix directory for the installed isl package.
1914 Equivalent to --with-isl-include=PATH/include
1915 plus --with-isl-lib=PATH/lib])])
1917 # Treat --without-isl as a request to disable
1918 # GRAPHITE support and skip all following checks.
1919 if test "x$with_isl" != "xno"; then
1921 dnl Provide configure switches and initialize islinc & isllibs
1922 dnl with user input.
1924 dnl The versions of isl that work for Graphite
1926 dnl Only execute fail-action, if isl has been requested.
1928 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1931 # If the isl check failed, disable builds of in-tree variant of isl
1932 if test "x$with_isl" = xno ||
1933 test "x$gcc_cv_isl" = xno; then
1934 noconfigdirs="$noconfigdirs isl"
1941 # Check for LTO support.
1943 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1944 enable_lto=$enableval,
1945 enable_lto=yes; default_enable_lto=yes)
1947 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1948 build_lto_plugin=yes
1949 ],[if test x"$default_enable_lto" = x"yes" ; then
1951 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1952 # On other non-ELF platforms, LTO has yet to be validated.
1956 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1957 # It would also be nice to check the binutils support, but we don't
1958 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1959 # warn during gcc/ subconfigure; unless you're bootstrapping with
1960 # -flto it won't be needed until after installation anyway.
1962 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1963 *) if test x"$enable_lto" = x"yes"; then
1964 AC_MSG_ERROR([LTO support is not enabled for this target.])
1969 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1970 # Build it unless LTO was explicitly disabled.
1972 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1977 AC_ARG_ENABLE(linker-plugin-configure-flags,
1978 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1979 [additional flags for configuring linker plugins @<:@none@:>@])],
1980 extra_linker_plugin_configure_flags=$enableval,
1981 extra_linker_plugin_configure_flags=)
1982 AC_SUBST(extra_linker_plugin_configure_flags)
1983 AC_ARG_ENABLE(linker-plugin-flags,
1984 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1985 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1986 extra_linker_plugin_flags=$enableval,
1987 extra_linker_plugin_flags=)
1988 AC_SUBST(extra_linker_plugin_flags)
1990 # Enable --enable-host-pie.
1991 # Checked early to determine whether jit is an 'all' language
1992 AC_ARG_ENABLE(host-pie,
1993 [AS_HELP_STRING([--enable-host-pie],
1994 [build position independent host executables])],
1995 [host_pie=$enableval
1997 x86_64-*-darwin* | aarch64-*-darwin*)
1998 if test x$host_pie != xyes ; then
1999 # PIC is the default, and actually cannot be switched off.
2000 echo configure.ac: warning: PIC code is required for the configured target, host-shared setting ignored. 1>&2
2006 *-*-darwin2*) host_pie=yes ;;
2012 # Enable --enable-host-shared.
2013 # Checked early to determine whether jit is an 'all' language
2014 AC_ARG_ENABLE(host-shared,
2015 [AS_HELP_STRING([--enable-host-shared],
2016 [build host code as shared libraries])],
2017 [host_shared=$enableval
2019 x86_64-*-darwin* | aarch64-*-darwin*)
2020 if test x$host_shared != xyes ; then
2021 # PIC is the default, and actually cannot be switched off.
2022 echo configure.ac: warning: PIC code is required for the configured target, host-shared setting ignored. 1>&2
2026 if test x$host_pie == xyes ; then
2027 echo configure.ac: warning: PIC code is required for PIE executables. 1>&2
2033 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
2034 # Darwin needs PIC objects to link PIE executables.
2035 *-*-darwin*) host_shared=host_pie ;;
2039 AC_SUBST(host_shared)
2041 if test x$host_shared = xyes; then
2043 elif test x$host_pie = xyes; then
2051 # If we are building PIC/PIE host executables, and we are building dependent
2052 # libs (e.g. GMP) in-tree those libs need to be configured to generate PIC
2055 if test "$host_shared" = "yes" -o "$host_pie" = "yes"; then
2056 host_libs_picflag='--with-pic'
2058 AC_SUBST(host_libs_picflag)
2060 # By default, C and C++ are the only stage 1 languages.
2061 stage1_languages=,c,
2063 # Target libraries that we bootstrap.
2064 bootstrap_target_libs=,target-libgcc,
2066 # Figure out what language subdirectories are present.
2067 # Look if the user specified --enable-languages="..."; if not, use
2068 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2070 # NB: embedded tabs in this IF block -- do not untabify
2071 if test -d ${srcdir}/gcc; then
2072 if test x"${enable_languages+set}" != xset; then
2073 if test x"${LANGUAGES+set}" = xset; then
2074 enable_languages="${LANGUAGES}"
2075 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
2077 enable_languages=default
2080 if test x"${enable_languages}" = x ||
2081 test x"${enable_languages}" = xyes;
2083 echo configure.ac: --enable-languages needs at least one language argument 1>&2
2087 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2089 # 'f95' is the old name for the 'fortran' language. We issue a warning
2090 # and make the substitution.
2091 case ,${enable_languages}, in
2093 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
2094 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
2098 # If bootstrapping, C++ must be enabled.
2099 case ",$enable_languages,:$enable_bootstrap" in
2102 if test -f ${srcdir}/gcc/cp/config-lang.in; then
2103 enable_languages="${enable_languages},c++"
2105 AC_MSG_ERROR([bootstrapping requires c++ sources])
2110 # First scan to see if an enabled language requires some other language.
2111 # We assume that a given config-lang.in will list all the language
2112 # front ends it requires, even if some are required indirectly.
2113 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2114 case ${lang_frag} in
2116 # The odd quoting in the next line works around
2117 # an apparent bug in bash 1.12 on linux.
2118 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2120 # From the config-lang.in, get $language, $lang_requires, and
2121 # $lang_requires_boot_languages.
2124 lang_requires_boot_languages=
2125 # set srcdir during sourcing lang_frag to the gcc dir.
2126 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
2127 # polutes this shell
2128 saved_srcdir=${srcdir}
2129 srcdir=${srcdir}/gcc . ${lang_frag}
2130 srcdir=${saved_srcdir}
2131 for other in ${lang_requires} ${lang_requires_boot_languages}; do
2132 case ,${enable_languages}, in
2137 echo " \`$other' language required by \`$language'; enabling" 1>&2
2138 enable_languages="${enable_languages},${other}"
2142 for other in ${lang_requires_boot_languages} ; do
2143 if test "$other" != "c"; then
2144 case ,${enable_stage1_languages}, in
2149 case ,${enable_languages}, in
2151 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
2152 enable_stage1_languages="$enable_stage1_languages,${other}"
2163 new_enable_languages=,c,
2165 # If LTO is enabled, add the LTO front end.
2166 if test "$enable_lto" = "yes" ; then
2167 case ,${enable_languages}, in
2169 *) enable_languages="${enable_languages},lto" ;;
2171 if test "${build_lto_plugin}" = "yes" ; then
2172 configdirs="$configdirs lto-plugin"
2176 # If we're building an offloading compiler, add the LTO front end.
2177 if test x"$enable_as_accelerator_for" != x ; then
2178 case ,${enable_languages}, in
2180 *) enable_languages="${enable_languages},lto" ;;
2184 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
2185 potential_languages=,c,
2187 enabled_target_libs=
2188 disabled_target_libs=
2190 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2191 case ${lang_frag} in
2193 # The odd quoting in the next line works around
2194 # an apparent bug in bash 1.12 on linux.
2195 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2197 # From the config-lang.in, get $language, $target_libs,
2198 # $lang_dirs, $boot_language, and $build_by_default
2204 build_by_default=yes
2205 # set srcdir during sourcing. See above about save & restore
2206 saved_srcdir=${srcdir}
2207 srcdir=${srcdir}/gcc . ${lang_frag}
2208 srcdir=${saved_srcdir}
2209 if test x${language} = x; then
2210 echo "${lang_frag} doesn't set \$language." 1>&2
2214 if test "$language" = "c++"; then
2219 # C is always enabled, so no need to add it again
2220 if test "$language" != "c"; then
2221 case ,${enable_languages}, in
2223 # Language was explicitly selected; include it
2227 # All languages are enabled
2231 # 'default' was selected, select it if it is a default language
2232 add_this_lang=${build_by_default}
2237 # Disable languages that need other directories if these aren't available.
2238 for i in $subdir_requires; do
2239 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2240 case ${add_this_lang} in
2242 # Specifically requested language; tell them.
2243 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2246 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2247 add_this_lang=unsupported
2251 add_this_lang=unsupported
2256 # Disable Ada if no preexisting GNAT is available.
2257 case ${add_this_lang}:${language}:${have_gnat} in
2259 # Specifically requested language; tell them.
2260 AC_MSG_ERROR([GNAT is required to build $language])
2263 AC_MSG_WARN([GNAT is required to build $language])
2264 add_this_lang=unsupported
2268 add_this_lang=unsupported
2272 # Disable D if no preexisting GDC is available.
2273 case ${add_this_lang}:${language}:${have_gdc} in
2275 # Specifically requested language; tell them.
2276 AC_MSG_ERROR([GDC is required to build $language])
2279 AC_MSG_WARN([GDC is required to build $language])
2280 add_this_lang=unsupported
2284 add_this_lang=unsupported
2288 # Disable jit if -enable-host-shared not specified
2289 # but not if building for Mingw. All code in Windows
2290 # is position independent code (PIC).
2294 case ${add_this_lang}:${language}:${host_shared} in
2296 # PR jit/64780: explicitly specify --enable-host-shared
2298 Enabling language "jit" requires --enable-host-shared.
2300 --enable-host-shared typically slows the rest of the compiler down by
2301 a few %, so you must explicitly enable it.
2303 If you want to build both the jit and the regular compiler, it is often
2304 best to do this via two separate configure/builds, in separate
2305 directories, to avoid imposing the performance cost of
2306 --enable-host-shared on the regular compiler.])
2309 AC_MSG_WARN([--enable-host-shared required to build $language])
2310 add_this_lang=unsupported
2314 add_this_lang=unsupported
2320 # Disable a language that is unsupported by the target.
2321 case "${add_this_lang}: $unsupported_languages " in
2325 AC_MSG_WARN([${language} not supported for this target])
2326 add_this_lang=unsupported
2330 case $add_this_lang in
2332 # Remove language-dependent dirs.
2333 disabled_target_libs="$disabled_target_libs $target_libs"
2334 noconfigdirs="$noconfigdirs $lang_dirs"
2337 # Remove language-dependent dirs; still show language as supported.
2338 disabled_target_libs="$disabled_target_libs $target_libs"
2339 noconfigdirs="$noconfigdirs $lang_dirs"
2340 potential_languages="${potential_languages}${language},"
2343 new_enable_languages="${new_enable_languages}${language},"
2344 potential_languages="${potential_languages}${language},"
2345 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2346 enabled_target_libs="$enabled_target_libs $target_libs"
2347 case "${boot_language}:,$enable_stage1_languages," in
2348 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2349 # Add to (comma-separated) list of stage 1 languages.
2350 case ",$stage1_languages," in
2351 *,$language,* | ,yes, | ,all,) ;;
2352 *) stage1_languages="${stage1_languages}${language}," ;;
2354 # We need to bootstrap any supporting libraries.
2355 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2364 # Add target libraries which are only needed for disabled languages
2366 if test -n "$disabled_target_libs"; then
2367 for dir in $disabled_target_libs; do
2368 case " $enabled_target_libs " in
2370 *) noconfigdirs="$noconfigdirs $dir" ;;
2375 AC_ARG_ENABLE(stage1-languages,
2376 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2377 [choose additional languages to build during
2378 stage1. Mostly useful for compiler development])],
2379 [case ,${enable_stage1_languages}, in
2381 # Set it to something that will have no effect in the loop below
2382 enable_stage1_languages=c ;;
2384 enable_stage1_languages=`echo $new_enable_languages | \
2385 sed -e "s/^,//" -e "s/,$//" ` ;;
2387 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2388 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2391 # Add "good" languages from enable_stage1_languages to stage1_languages,
2392 # while "bad" languages go in missing_languages. Leave no duplicates.
2393 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2394 case $potential_languages in
2396 case $stage1_languages in
2398 *) stage1_languages="$stage1_languages$i," ;;
2401 case $missing_languages in
2403 *) missing_languages="$missing_languages$i," ;;
2408 # Remove leading/trailing commas that were added for simplicity
2409 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2410 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2411 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2412 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2414 if test "x$missing_languages" != x; then
2416 The following requested languages could not be built: ${missing_languages}
2417 Supported languages are: ${potential_languages}])
2419 if test "x$new_enable_languages" != "x$enable_languages"; then
2420 echo The following languages will be built: ${new_enable_languages}
2421 enable_languages="$new_enable_languages"
2424 AC_SUBST(stage1_languages)
2425 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2428 # Handle --disable-<component> generically.
2429 for dir in $configdirs $build_configdirs $target_configdirs ; do
2430 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2431 varname=`echo $dirname | sed -e s/+/_/g`
2432 if eval test x\${enable_${varname}} "=" xno ; then
2433 noconfigdirs="$noconfigdirs $dir"
2437 # Check for Boehm's garbage collector
2438 AC_ARG_ENABLE(objc-gc,
2439 [AS_HELP_STRING([--enable-objc-gc],
2440 [enable use of Boehm's garbage collector with the
2441 GNU Objective-C runtime])])
2442 AC_ARG_WITH([target-bdw-gc],
2443 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2444 [specify prefix directory for installed bdw-gc package.
2445 Equivalent to --with-target-bdw-gc-include=PATH/include
2446 plus --with-target-bdw-gc-lib=PATH/lib])])
2447 AC_ARG_WITH([target-bdw-gc-include],
2448 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2449 [specify directories for installed bdw-gc include files])])
2450 AC_ARG_WITH([target-bdw-gc-lib],
2451 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2452 [specify directories for installed bdw-gc library])])
2454 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2455 AC_MSG_CHECKING([for bdw garbage collector])
2456 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2457 dnl no bdw-gw options, assume default locations
2458 AC_MSG_RESULT([using bdw-gc in default locations])
2460 dnl bdw-gw options, first error checking, complete checking in libobjc
2461 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2462 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2463 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2464 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2466 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2471 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2472 case ,${enable_languages}, in
2474 # Disable libitm, libsanitizer if we're not building libstdc++
2475 case "${noconfigdirs}" in
2476 *target-libstdc++-v3*)
2477 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2483 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2487 # If gcc/ is not in the source tree then we'll not be building a
2488 # target compiler, assume in that case we don't want to build any
2489 # target libraries or tools.
2491 # This was added primarily for the benefit for binutils-gdb who reuse
2492 # this configure script, but don't always have target tools available.
2493 if test ! -d ${srcdir}/gcc; then
2494 skipdirs="${skipdirs} ${target_configdirs}"
2497 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2498 # $build_configdirs and $target_configdirs.
2499 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2502 for dir in . $skipdirs $noconfigdirs ; do
2503 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2504 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2505 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2506 if test -r $srcdir/$dirname/configure ; then
2507 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2510 notsupp="$notsupp $dir"
2514 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2515 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2516 if test -r $srcdir/$dirname/configure ; then
2517 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2520 notsupp="$notsupp $dir"
2524 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2525 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2526 if test -r $srcdir/$dirname/configure ; then
2527 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2530 notsupp="$notsupp $dir"
2536 # Quietly strip out all directories which aren't configurable in this tree.
2537 # This relies on all configurable subdirectories being autoconfiscated, which
2539 build_configdirs_all="$build_configdirs"
2541 for i in ${build_configdirs_all} ; do
2542 j=`echo $i | sed -e s/build-//g`
2543 if test -f ${srcdir}/$j/configure ; then
2544 build_configdirs="${build_configdirs} $i"
2548 configdirs_all="$configdirs"
2550 for i in ${configdirs_all} ; do
2551 if test -f ${srcdir}/$i/configure ; then
2552 configdirs="${configdirs} $i"
2556 target_configdirs_all="$target_configdirs"
2558 for i in ${target_configdirs_all} ; do
2559 j=`echo $i | sed -e s/target-//g`
2560 if test -f ${srcdir}/$j/configure ; then
2561 target_configdirs="${target_configdirs} $i"
2565 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2566 # so we have to add it after the preceding checks.
2567 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2569 case " $configdirs " in
2571 # If we can build libiberty, we can also build libiberty-linker-plugin.
2572 configdirs="$configdirs libiberty-linker-plugin"
2573 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2574 --with-libiberty=../libiberty-linker-plugin";;
2576 AC_MSG_ERROR([libiberty missing]);;
2580 # Sometimes we have special requirements for the host libiberty.
2581 extra_host_libiberty_configure_flags=
2582 case " $configdirs " in
2583 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
2584 # When these are to be built as shared libraries, the same applies to
2586 extra_host_libiberty_configure_flags=--enable-shared
2589 AC_SUBST(extra_host_libiberty_configure_flags)
2591 # Sometimes we have special requirements for the host zlib.
2592 extra_host_zlib_configure_flags=
2593 case " $configdirs " in
2595 # When bfd is to be built as a shared library, the same applies to
2597 if test "$enable_shared" = "yes"; then
2598 extra_host_zlib_configure_flags=--enable-host-shared
2602 AC_SUBST(extra_host_zlib_configure_flags)
2604 # Produce a warning message for the subdirs we can't configure.
2605 # This isn't especially interesting in the Cygnus tree, but in the individual
2606 # FSF releases, it's important to let people know when their machine isn't
2607 # supported by the one or two programs in a package.
2609 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2610 # If $appdirs is non-empty, at least one of those directories must still
2611 # be configured, or we error out. (E.g., if the gas release supports a
2612 # specified target in some subdirs but not the gas subdir, we shouldn't
2613 # pretend that all is well.)
2614 if test -n "$appdirs" ; then
2615 for dir in $appdirs ; do
2616 if test -r $dir/Makefile.in ; then
2617 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2621 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2627 if test -n "$appdirs" ; then
2628 echo "*** This configuration is not supported by this package." 1>&2
2632 # Okay, some application will build, or we don't care to check. Still
2633 # notify of subdirs not getting built.
2634 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2635 echo " ${notsupp}" 1>&2
2636 echo " (Any other directories should still work fine.)" 1>&2
2644 # To find our prefix, in gcc_cv_tool_prefix.
2649 AC_ARG_WITH([build-sysroot],
2650 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2651 [use sysroot as the system root during the build])],
2652 [if test x"$withval" != x ; then
2653 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2655 [SYSROOT_CFLAGS_FOR_TARGET=])
2656 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2658 AC_ARG_WITH([debug-prefix-map],
2659 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2660 [map A to B, C to D ... in debug information])],
2661 [if test x"$withval" != x; then
2662 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2663 for debug_map in $withval; do
2664 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2667 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2668 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2670 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2671 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2672 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2673 # We want to ensure that TARGET libraries (which we know are built with
2674 # gcc) are built with "-O2 -g", so include those options when setting
2675 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2676 if test "x$CFLAGS_FOR_TARGET" = x; then
2677 if test "x${is_cross_compiler}" = xyes; then
2678 CFLAGS_FOR_TARGET="-g -O2"
2680 CFLAGS_FOR_TARGET=$CFLAGS
2683 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2686 *" -g "* | *" -g3 "*) ;;
2687 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2691 AC_SUBST(CFLAGS_FOR_TARGET)
2693 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2694 if test "x${is_cross_compiler}" = xyes; then
2695 CXXFLAGS_FOR_TARGET="-g -O2"
2697 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2698 case " $CXXFLAGS " in
2700 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2702 case " $CXXFLAGS " in
2703 *" -g "* | *" -g3 "*) ;;
2704 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2708 AC_SUBST(CXXFLAGS_FOR_TARGET)
2710 AC_SUBST(LDFLAGS_FOR_TARGET)
2712 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2713 # the named directory are copied to $(tooldir)/sys-include.
2714 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2715 if test x${is_cross_compiler} = xno ; then
2716 echo 1>&2 '***' --with-headers is only supported when cross compiling
2719 if test x"${with_headers}" != xyes ; then
2720 x=${gcc_cv_tool_prefix}
2721 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2725 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2726 # the name directories are copied to $(tooldir)/lib. Multiple directories
2728 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2729 if test x${is_cross_compiler} = xno ; then
2730 echo 1>&2 '***' --with-libs is only supported when cross compiling
2733 if test x"${with_libs}" != xyes ; then
2734 # Copy the libraries in reverse order, so that files in the first named
2735 # library override files in subsequent libraries.
2736 x=${gcc_cv_tool_prefix}
2737 for l in ${with_libs}; do
2738 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2743 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2745 # This is done by determining whether or not the appropriate directory
2746 # is available, and by checking whether or not specific configurations
2747 # have requested that this magic not happen.
2749 # The command line options always override the explicit settings in
2750 # configure.ac, and the settings in configure.ac override this magic.
2752 # If the default for a toolchain is to use GNU as and ld, and you don't
2753 # want to do that, then you should use the --without-gnu-as and
2754 # --without-gnu-ld options for the configure script. Similarly, if
2755 # the default is to use the included zlib and you don't want to do that,
2756 # you should use the --with-system-zlib option for the configure script.
2758 if test x${use_gnu_as} = x &&
2759 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2761 extra_host_args="$extra_host_args --with-gnu-as"
2764 if test x${use_gnu_ld} = x &&
2765 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2767 extra_host_args="$extra_host_args --with-gnu-ld"
2770 if test x${use_included_zlib} = x &&
2771 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2774 with_system_zlib=yes
2775 extra_host_args="$extra_host_args --with-system-zlib"
2778 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2779 # can detect this case.
2781 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2783 extra_host_args="$extra_host_args --with-newlib"
2786 # Handle ${copy_dirs}
2787 set fnord ${copy_dirs}
2789 while test $# != 0 ; do
2790 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2793 echo Copying $1 to $2
2795 # Use the install script to create the directory and all required
2796 # parent directories.
2797 if test -d $2 ; then
2801 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2804 # Copy the directory, assuming we have tar.
2805 # FIXME: Should we use B in the second tar? Not all systems support it.
2806 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2808 # It is the responsibility of the user to correctly adjust all
2809 # symlinks. If somebody can figure out how to handle them correctly
2810 # here, feel free to add the code.
2817 # Determine a target-dependent exec_prefix that the installed
2818 # gcc will search in. Keep this list sorted by triplet, with
2819 # the *-*-osname triplets last.
2822 i[[34567]]86-pc-msdosdjgpp*)
2823 md_exec_prefix=/dev/env/DJDIR/bin
2828 md_exec_prefix=/usr/ccs/bin
2832 extra_arflags_for_target=
2833 extra_nmflags_for_target=
2834 extra_ranlibflags_for_target=
2835 target_makefile_frag=/dev/null
2838 target_makefile_frag="config/mt-spu"
2840 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2841 target_makefile_frag="config/mt-sde"
2843 mipsisa*-*-elfoabi*)
2844 target_makefile_frag="config/mt-mips-elfoabi"
2846 mips*-*-*linux* | mips*-*-gnu*)
2847 target_makefile_frag="config/mt-mips-gnu"
2850 target_makefile_frag="config/mt-nios2-elf"
2853 target_makefile_frag="config/mt-android"
2855 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2856 target_makefile_frag="config/mt-gnu"
2858 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2859 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2860 # commands to handle both 32-bit and 64-bit objects. These flags are
2861 # harmless if we're using GNU nm or ar.
2862 extra_arflags_for_target=" -X32_64"
2863 extra_nmflags_for_target=" -B -X32_64"
2867 alphaieee_frag=/dev/null
2870 # This just makes sure to use the -mieee option to build target libs.
2871 # This should probably be set individually by each library.
2872 alphaieee_frag="config/mt-alphaieee"
2876 # If --enable-target-optspace always use -Os instead of -O2 to build
2877 # the target libraries, similarly if it is not specified, use -Os
2878 # on selected platforms.
2879 ospace_frag=/dev/null
2880 case "${enable_target_optspace}:${target}" in
2882 ospace_frag="config/mt-ospace"
2885 ospace_frag="config/mt-d30v"
2887 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2888 ospace_frag="config/mt-ospace"
2893 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2897 # Some systems (e.g., one of the i386-aix systems the gas testers are
2898 # using) don't handle "\$" correctly, so don't use it here.
2899 tooldir='${exec_prefix}'/${target_noncanonical}
2900 build_tooldir=${tooldir}
2902 # Create a .gdbinit file which runs the one in srcdir
2903 # and tells GDB to look there for source files.
2905 if test -r ${srcdir}/.gdbinit ; then
2908 *) cat > ./.gdbinit <<EOF
2912 source ${srcdir}/.gdbinit
2918 # Make sure that the compiler is able to generate an executable. If it
2919 # can't, we are probably in trouble. We don't care whether we can run the
2920 # executable--we might be using a cross compiler--we only care whether it
2921 # can be created. At this point the main configure script has set CC.
2923 echo "int main () { return 0; }" > conftest.c
2924 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2925 if test $? = 0 ; then
2926 if test -s conftest || test -s conftest.exe ; then
2932 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2933 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2940 # Decide which environment variable is used to find dynamic libraries.
2942 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2943 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2944 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2945 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2948 # On systems where the dynamic library environment variable is PATH,
2949 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2950 # built executables to PATH.
2951 if test "$RPATH_ENVVAR" = PATH; then
2952 GCC_SHLIB_SUBDIR=/shlib
2957 # Adjust the toplevel makefile according to whether bootstrap was selected.
2958 case $enable_bootstrap in
2960 bootstrap_suffix=bootstrap
2961 BUILD_CONFIG=bootstrap-debug
2964 bootstrap_suffix=no-bootstrap
2969 AC_MSG_CHECKING(for default BUILD_CONFIG)
2971 AC_ARG_WITH([build-config],
2972 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2973 [use config/NAME.mk build configuration])],
2974 [case $with_build_config in
2975 yes) with_build_config= ;;
2976 no) with_build_config= BUILD_CONFIG= ;;
2979 if test "x${with_build_config}" != x; then
2980 BUILD_CONFIG=$with_build_config
2982 case $BUILD_CONFIG in
2984 if echo "int f (void) { return 0; }" > conftest.c &&
2985 ${CC} -c conftest.c &&
2986 mv conftest.o conftest.o.g0 &&
2987 ${CC} -c -g conftest.c &&
2988 mv conftest.o conftest.o.g &&
2989 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2994 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2998 AC_MSG_RESULT($BUILD_CONFIG)
2999 AC_SUBST(BUILD_CONFIG)
3001 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
3002 AC_MSG_CHECKING([for --enable-vtable-verify])
3003 AC_ARG_ENABLE(vtable-verify,
3004 [AS_HELP_STRING([--enable-vtable-verify],
3005 [Enable vtable verification feature])],
3006 [case "$enableval" in
3007 yes) enable_vtable_verify=yes ;;
3008 no) enable_vtable_verify=no ;;
3009 *) enable_vtable_verify=no;;
3011 [enable_vtable_verify=no])
3012 AC_MSG_RESULT($enable_vtable_verify)
3014 # Record target_configdirs and the configure arguments for target and
3015 # build configuration in Makefile.
3016 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
3017 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
3018 bootstrap_fixincludes=no
3020 # If we are building libgomp, bootstrap it.
3021 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
3022 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
3025 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
3026 # or bootstrap-ubsan, bootstrap it.
3027 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
3028 case "$BUILD_CONFIG" in
3029 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
3030 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
3031 bootstrap_fixincludes=yes
3036 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
3037 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
3038 test "$enable_vtable_verify" != no; then
3039 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
3042 # If we are building libatomic and the list of enabled languages includes the
3043 # D frontend, bootstrap it.
3044 if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
3045 case ,${enable_languages}, in
3047 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
3052 # Determine whether gdb needs tk/tcl or not.
3053 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
3054 # and in that case we want gdb to be built without tk. Ugh!
3055 # In fact I believe gdb is the *only* package directly dependent on tk,
3056 # so we should be able to put the 'maybe's in unconditionally and
3057 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
3058 # 100% sure that that's safe though.
3060 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
3061 case "$enable_gdbtk" in
3065 GDB_TK="${gdb_tk}" ;;
3067 # Only add the dependency on gdbtk when GDBtk is part of the gdb
3068 # distro. Eventually someone will fix this and move Insight, nee
3069 # gdbtk to a separate directory.
3070 if test -d ${srcdir}/gdb/gdbtk ; then
3077 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
3078 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
3080 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
3081 # else does, only include them if one of these is built. The Makefile
3082 # provides the ordering, so it's enough here to add to the list.
3083 case " ${configdirs} " in
3085 configdirs="${configdirs} gnulib gdbsupport"
3088 configdirs="${configdirs} gnulib gdbsupport"
3091 configdirs="${configdirs} gnulib"
3095 # Strip out unwanted targets.
3097 # While at that, we remove Makefiles if we were started for recursive
3098 # configuration, so that the top-level Makefile reconfigures them,
3099 # like we used to do when configure itself was recursive.
3101 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
3102 # but now we're fixing up the Makefile ourselves with the additional
3103 # commands passed to AC_CONFIG_FILES. Use separate variables
3104 # extrasub-{build,host,target} not because there is any reason to split
3105 # the substitutions up that way, but only to remain below the limit of
3106 # 99 commands in a script, for HP-UX sed.
3108 # Do not nest @if/@endif or @unless/@endunless pairs, because
3109 # configure will not warn you at all.
3111 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
3112 yes:yes:*\ gold\ *:*,c++,*) ;;
3113 yes:yes:*\ gold\ *:*)
3114 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
3119 for module in ${build_configdirs} ; do
3120 if test -z "${no_recursion}" \
3121 && test -f ${build_subdir}/${module}/Makefile; then
3122 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
3123 rm -f ${build_subdir}/${module}/Makefile
3125 extrasub_build="$extrasub_build
3126 /^@if build-$module\$/d
3127 /^@endif build-$module\$/d
3128 /^@unless build-$module\$/,/^@endunless build-$module\$/d
3129 /^@if build-$module-$bootstrap_suffix\$/d
3130 /^@endif build-$module-$bootstrap_suffix\$/d
3131 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
3134 for module in ${configdirs} ; do
3135 if test -z "${no_recursion}"; then
3136 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
3137 if test -f ${file}; then
3138 echo 1>&2 "*** removing ${file} to force reconfigure"
3143 case ${module},${bootstrap_fixincludes} in
3144 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
3145 *) host_bootstrap_suffix=$bootstrap_suffix ;;
3147 extrasub_host="$extrasub_host
3149 /^@endif $module\$/d
3150 /^@unless $module\$/,/^@endunless $module\$/d
3151 /^@if $module-$host_bootstrap_suffix\$/d
3152 /^@endif $module-$host_bootstrap_suffix\$/d
3153 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
3156 for module in ${target_configdirs} ; do
3157 if test -z "${no_recursion}" \
3158 && test -f ${target_subdir}/${module}/Makefile; then
3159 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
3160 rm -f ${target_subdir}/${module}/Makefile
3163 # We only bootstrap target libraries listed in bootstrap_target_libs.
3164 case $bootstrap_target_libs in
3165 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
3166 *) target_bootstrap_suffix=no-bootstrap ;;
3169 extrasub_target="$extrasub_target
3170 /^@if target-$module\$/d
3171 /^@endif target-$module\$/d
3172 /^@unless target-$module\$/,/^@endunless target-$module\$/d
3173 /^@if target-$module-$target_bootstrap_suffix\$/d
3174 /^@endif target-$module-$target_bootstrap_suffix\$/d
3175 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
3178 # Do the final fixup along with target modules.
3179 extrasub_target="$extrasub_target
3184 if test "$enable_pgo_build" != "no"; then
3185 extrasub_build="$extrasub_build
3187 /^@endif pgo-build\$/d"
3190 # Create the serialization dependencies. This uses a temporary file.
3192 AC_ARG_ENABLE([serial-configure],
3193 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3194 [force sequential configuration of
3195 sub-packages for the host, target or build
3196 machine, or all sub-packages])])
3198 case ${enable_serial_configure} in
3200 enable_serial_build_configure=yes
3201 enable_serial_host_configure=yes
3202 enable_serial_target_configure=yes
3206 # These force 'configure's to be done one at a time, to avoid problems
3207 # with contention over a shared config.cache.
3209 echo '# serdep.tmp' > serdep.tmp
3211 test "x${enable_serial_build_configure}" = xyes &&
3212 for item in ${build_configdirs} ; do
3215 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
3220 test "x${enable_serial_host_configure}" = xyes &&
3221 for item in ${configdirs} ; do
3224 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
3229 test "x${enable_serial_target_configure}" = xyes &&
3230 for item in ${target_configdirs} ; do
3233 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
3237 serialization_dependencies=serdep.tmp
3238 AC_SUBST_FILE(serialization_dependencies)
3240 # Base args. Strip norecursion, cache-file, srcdir, host, build,
3241 # target, nonopt, and variable assignments. These are the ones we
3242 # might not want to pass down to subconfigures. The exception being
3243 # --cache-file=/dev/null, which is used to turn off the use of cache
3244 # files altogether, and which should be passed on to subconfigures.
3245 # Also strip program-prefix, program-suffix, and program-transform-name,
3246 # so that we can pass down a consistent program-transform-name.
3251 eval "set -- $ac_configure_args"
3254 if test X"$skip_next" = X"yes"; then
3258 if test X"$keep_next" = X"yes"; then
3261 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3263 baseargs="$baseargs '$ac_arg'"
3264 tbaseargs="$tbaseargs '$ac_arg'"
3269 # Handle separated arguments. Based on the logic generated by
3272 *=* | --config-cache | -C | -disable-* | --disable-* \
3273 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3274 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3275 | -with-* | --with-* | -without-* | --without-* | --x)
3289 --with-* | --without-*)
3290 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3294 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3297 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3306 mpc | mpfr | gmp | isl)
3307 # If we're processing --with-$lib, --with-$lib-include or
3308 # --with-$lib-lib, for one of the libs above, and target is
3309 # different from host, don't pass the current argument to any
3310 # target library's configure.
3311 if test x$is_cross_compiler = xyes; then
3320 --cache-file=/dev/null | \
3321 -cache-file=/dev/null )
3322 # Handled here to avoid the test to skip args below.
3323 baseargs="$baseargs '$ac_arg'"
3324 tbaseargs="$tbaseargs '$ac_arg'"
3325 # Assert: $separate_arg should always be no.
3326 keep_next=$separate_arg
3342 -program-prefix* | \
3343 -program-suffix* | \
3344 -program-transform-name* )
3345 skip_next=$separate_arg
3349 # An option. Add it.
3352 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3354 baseargs="$baseargs '$ac_arg'"
3355 if test X"$skip_targ" = Xno; then
3356 tbaseargs="$tbaseargs '$ac_arg'"
3358 keep_next=$separate_arg
3361 # Either a variable assignment, or a nonopt (triplet). Don't
3362 # pass it down; let the Makefile handle this.
3367 # Remove the initial space we just introduced and, as these will be
3368 # expanded by make, quote '$'.
3369 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3371 # Add in --program-transform-name, after --program-prefix and
3372 # --program-suffix have been applied to it. Autoconf has already
3373 # doubled dollar signs and backslashes in program_transform_name; we want
3374 # the backslashes un-doubled, and then the entire thing wrapped in single
3375 # quotes, because this will be expanded first by make and then by the shell.
3376 # Also, because we want to override the logic in subdir configure scripts to
3377 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3378 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3379 ${program_transform_name}
3381 gcc_transform_name=`cat conftestsed.out`
3382 rm -f conftestsed.out
3383 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3384 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3385 if test "$silent" = yes; then
3386 baseargs="$baseargs --silent"
3387 tbaseargs="$tbaseargs --silent"
3390 baseargs="$baseargs --disable-option-checking"
3391 tbaseargs="$tbaseargs --disable-option-checking"
3393 if test "$enable_year2038" = no; then
3394 baseargs="$baseargs --disable-year2038"
3395 tbaseargs="$tbaseargs --disable-year2038"
3398 # Record and document user additions to sub configure arguments.
3399 AC_ARG_VAR([build_configargs],
3400 [additional configure arguments for build directories])
3401 AC_ARG_VAR([host_configargs],
3402 [additional configure arguments for host directories])
3403 AC_ARG_VAR([target_configargs],
3404 [additional configure arguments for target directories])
3406 # For the build-side libraries, we just need to pretend we're native,
3407 # and not use the same cache file. Multilibs are neither needed nor
3408 # desired. We can't even use the same cache file for all build-side
3409 # libraries, as they're compiled differently; some with C, some with
3410 # C++ or with different feature-enabling options.
3411 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3413 # For host modules, accept cache file option, or specification as blank.
3414 case "${cache_file}" in
3416 cache_file_option="" ;;
3417 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3418 cache_file_option="--cache-file=${cache_file}" ;;
3420 cache_file_option="--cache-file=../${cache_file}" ;;
3423 # Host dirs don't like to share a cache file either, horribly enough.
3424 # This seems to be due to autoconf 2.5x stupidity.
3425 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3427 target_configargs="$target_configargs ${tbaseargs}"
3429 # Passing a --with-cross-host argument lets the target libraries know
3430 # whether they are being built with a cross-compiler or being built
3431 # native. However, it would be better to use other mechanisms to make the
3432 # sorts of decisions they want to make on this basis. Please consider
3433 # this option to be deprecated. FIXME.
3434 if test x${is_cross_compiler} = xyes ; then
3435 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3438 # Special user-friendly check for native x86_64-linux build, if
3439 # multilib is not explicitly enabled.
3440 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3441 x86_64-*linux*:yes:$build:$build:)
3442 # Make sure we have a development environment that handles 32-bit
3444 echo "int main () { return 0; }" > conftest.c
3445 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3446 if test $? = 0 ; then
3447 if test -s conftest || test -s conftest.exe ; then
3452 if test x${dev64} != xyes ; then
3453 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.])
3458 # Default to --enable-multilib.
3459 if test x${enable_multilib} = x ; then
3460 target_configargs="--enable-multilib ${target_configargs}"
3463 # Pass --with-newlib if appropriate. Note that target_configdirs has
3464 # changed from the earlier setting of with_newlib.
3465 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3466 target_configargs="--with-newlib ${target_configargs}"
3469 # Different target subdirs use different values of certain variables
3470 # (notably CXX). Worse, multilibs use *lots* of different values.
3471 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3472 # it doesn't automatically accept command-line overrides of them.
3473 # This means it's not safe for target subdirs to share a cache file,
3474 # which is disgusting, but there you have it. Hopefully this can be
3475 # fixed in future. It's still worthwhile to use a cache file for each
3476 # directory. I think.
3478 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3479 # We need to pass --target, as newer autoconf's requires consistency
3480 # for target_alias and gcc doesn't manage it consistently.
3481 target_configargs="--cache-file=./config.cache ${target_configargs}"
3484 case " $target_configdirs " in
3486 case " $target_configargs " in
3487 *" --with-newlib "*)
3490 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3494 # If we're not building GCC, don't discard standard headers.
3495 if test -d ${srcdir}/gcc; then
3496 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3498 if test "${build}" != "${host}"; then
3499 # On Canadian crosses, CC_FOR_TARGET will have already been set
3500 # by `configure', so we won't have an opportunity to add -Bgcc/
3501 # to it. This is right: we don't want to search that directory
3502 # for binaries, but we want the header files in there, so add
3504 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3506 # Someone might think of using the pre-installed headers on
3507 # Canadian crosses, in case the installed compiler is not fully
3508 # compatible with the compiler being built. In this case, it
3509 # would be better to flag an error than risking having
3510 # incompatible object files being constructed. We can't
3511 # guarantee that an error will be flagged, but let's hope the
3512 # compiler will do it, when presented with incompatible header
3517 case "${target}-${is_cross_compiler}" in
3518 i[[3456789]]86-*-linux*-no)
3519 # Here host == target, so we don't need to build gcc,
3520 # so we don't want to discard standard headers.
3521 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3524 # If we're building newlib, use its generic headers last, but search
3525 # for any libc-related directories first (so make it the last -B
3527 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3529 # If we're building libgloss, find the startup file, simulator library
3530 # and linker script.
3531 case " $target_configdirs " in
3533 # Look for startup file, simulator library and maybe linker script.
3534 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3535 # Look for libnosys.a in case the target needs it.
3536 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3537 # Most targets have the linker script in the source directory.
3538 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3549 x86_64-*mingw* | *-w64-mingw*)
3550 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3551 # however, use a symlink named 'mingw' in ${prefix} .
3552 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3555 # MinGW can't be handled as Cygwin above since it does not use newlib.
3556 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3560 # Allow the user to override the flags for
3561 # our build compiler if desired.
3562 if test x"${build}" = x"${host}" ; then
3563 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3564 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
3565 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3566 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3569 # On Canadian crosses, we'll be searching the right directories for
3570 # the previously-installed cross compiler, so don't bother to add
3571 # flags for directories within the install tree of the compiler
3572 # being built; programs in there won't even run.
3573 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3574 # Search for pre-installed headers if nothing else fits.
3575 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3578 if test "x${use_gnu_ld}" = x &&
3579 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3580 # Arrange for us to find uninstalled linker scripts.
3581 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3584 # Search for other target-specific linker scripts and such.
3587 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3589 # The VxWorks support for shared libraries is getting in
3590 # incrementally. Make sure it doesn't get activated implicitly:
3592 if test "${enable_shared-unset}" = unset ; then
3594 # So the build of libraries knows ...
3595 target_configargs="${target_configargs} --disable-shared"
3597 host_configargs="${host_configargs} --disable-shared"
3602 # Makefile fragments.
3603 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3605 eval fragval=\$$frag
3606 if test $fragval != /dev/null; then
3607 eval $frag=${srcdir}/$fragval
3610 AC_SUBST_FILE(host_makefile_frag)
3611 AC_SUBST_FILE(target_makefile_frag)
3612 AC_SUBST_FILE(alphaieee_frag)
3613 AC_SUBST_FILE(ospace_frag)
3615 # Miscellanea: directories, flags, etc.
3616 AC_SUBST(RPATH_ENVVAR)
3617 AC_SUBST(GCC_SHLIB_SUBDIR)
3619 AC_SUBST(build_tooldir)
3620 AC_SUBST(CONFIGURE_GDB_TK)
3622 AC_SUBST(INSTALL_GDB_TK)
3624 # Build module lists & subconfigure args.
3625 AC_SUBST(build_configargs)
3626 AC_SUBST(build_configdirs)
3628 # Host module lists & subconfigure args.
3629 AC_SUBST(host_configargs)
3630 AC_SUBST(configdirs)
3631 AC_SUBST(target_configdirs)
3633 # Target module lists & subconfigure args.
3634 AC_SUBST(target_configargs)
3638 AC_SUBST(AR_FOR_BUILD)
3639 AC_SUBST(AS_FOR_BUILD)
3640 AC_SUBST(CC_FOR_BUILD)
3641 AC_SUBST(CFLAGS_FOR_BUILD)
3642 AC_SUBST(CPP_FOR_BUILD)
3643 AC_SUBST(CPPFLAGS_FOR_BUILD)
3644 AC_SUBST(CXXFLAGS_FOR_BUILD)
3645 AC_SUBST(CXX_FOR_BUILD)
3646 AC_SUBST(DLLTOOL_FOR_BUILD)
3647 AC_SUBST(DSYMUTIL_FOR_BUILD)
3648 AC_SUBST(GFORTRAN_FOR_BUILD)
3649 AC_SUBST(GOC_FOR_BUILD)
3650 AC_SUBST(GDC_FOR_BUILD)
3651 AC_SUBST(LDFLAGS_FOR_BUILD)
3652 AC_SUBST(LD_FOR_BUILD)
3653 AC_SUBST(NM_FOR_BUILD)
3654 AC_SUBST(RANLIB_FOR_BUILD)
3655 AC_SUBST(WINDMC_FOR_BUILD)
3656 AC_SUBST(WINDRES_FOR_BUILD)
3658 # Generate default definitions for YACC, M4, LEX and other programs that run
3659 # on the build machine. These are used if the Makefile can't locate these
3660 # programs in objdir.
3661 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3663 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3664 case " $build_configdirs " in
3665 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3668 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3669 case " $build_configdirs " in
3670 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3673 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3674 case " $build_configdirs " in
3675 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3678 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3679 case " $build_configdirs " in
3680 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3681 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3684 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3685 case " $build_configdirs " in
3686 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3689 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3690 case " $build_configdirs " in
3691 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3694 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3695 # higher, else we use the "missing" dummy.
3696 if ${MAKEINFO} --version \
3697 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3700 MAKEINFO="$MISSING makeinfo"
3706 # FIXME: expect and dejagnu may become build tools?
3708 AC_CHECK_PROGS(EXPECT, expect, expect)
3709 case " $configdirs " in
3711 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3715 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3716 case " $configdirs " in
3718 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3724 NCN_STRICT_CHECK_TOOLS(AR, ar)
3725 NCN_STRICT_CHECK_TOOLS(AS, as)
3726 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3727 NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
3728 NCN_STRICT_CHECK_TOOLS(LD, ld)
3729 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3730 NCN_STRICT_CHECK_TOOLS(NM, nm)
3731 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3732 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3733 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3734 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3735 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3736 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3737 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3738 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3745 AC_SUBST(PKG_CONFIG_PATH)
3747 GCC_PLUGIN_OPTION(PLUGIN_OPTION)
3749 RANLIB_PLUGIN_OPTION=
3750 if test -n "$PLUGIN_OPTION"; then
3751 if $AR --help 2>&1 | grep -q "\--plugin"; then
3752 AR_PLUGIN_OPTION="$PLUGIN_OPTION"
3754 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
3755 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
3758 AC_SUBST(AR_PLUGIN_OPTION)
3759 AC_SUBST(RANLIB_PLUGIN_OPTION)
3762 AC_ARG_WITH([build-time-tools],
3763 [AS_HELP_STRING([--with-build-time-tools=PATH],
3764 [use given path to find target tools during the build])],
3765 [case x"$withval" in
3768 with_build_time_tools=
3769 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3772 [with_build_time_tools=])
3774 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3775 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3776 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3777 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3778 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3779 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3781 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3782 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3783 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3784 ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
3785 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3786 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3787 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3788 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3789 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3790 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3791 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3792 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3793 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3794 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3795 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3797 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3799 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3800 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3801 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3802 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3803 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3804 [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],
3806 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3807 [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],
3809 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3810 GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
3811 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3812 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3813 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3814 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3815 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3816 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3817 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3818 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3819 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3820 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3821 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3822 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3823 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3824 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3825 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3826 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3827 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3828 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3830 AC_SUBST(FLAGS_FOR_TARGET)
3831 AC_SUBST(RAW_CXX_FOR_TARGET)
3833 # Certain tools may need extra flags.
3834 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3835 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3836 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3838 # When building target libraries, except in a Canadian cross, we use
3839 # the same toolchain as the compiler we just built.
3840 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3841 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3842 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3843 if test $host = $build; then
3844 case " $configdirs " in
3846 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3847 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3848 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3853 AC_SUBST(COMPILER_AS_FOR_TARGET)
3854 AC_SUBST(COMPILER_LD_FOR_TARGET)
3855 AC_SUBST(COMPILER_NM_FOR_TARGET)
3857 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3858 AC_ARG_ENABLE(maintainer-mode,
3859 [AS_HELP_STRING([--enable-maintainer-mode],
3860 [enable make rules and dependencies not useful
3861 (and sometimes confusing) to the casual installer])],
3862 USE_MAINTAINER_MODE=$enableval,
3863 USE_MAINTAINER_MODE=no)
3864 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3865 AC_SUBST(MAINTAINER_MODE_TRUE)
3866 AC_SUBST(MAINTAINER_MODE_FALSE)
3867 if test "$USE_MAINTAINER_MODE" = yes; then
3868 MAINTAINER_MODE_TRUE=
3869 MAINTAINER_MODE_FALSE='#'
3871 MAINTAINER_MODE_TRUE='#'
3872 MAINTAINER_MODE_FALSE=
3874 MAINT=$MAINTAINER_MODE_TRUE
3877 # ---------------------
3878 # GCC bootstrap support
3879 # ---------------------
3881 # Stage specific cflags for build.
3886 yes) stage1_cflags="-g -Wa,-J" ;;
3887 *) stage1_cflags="-g -J" ;;
3891 AC_SUBST(stage1_cflags)
3893 # Enable --enable-checking in stage1 of the compiler.
3894 AC_ARG_ENABLE(stage1-checking,
3895 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3896 [choose additional checking for stage1 of the compiler])],
3897 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3898 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3899 # For --disable-checking or implicit --enable-checking=release, avoid
3900 # setting --enable-checking=gc in the default stage1 checking for LTO
3901 # bootstraps. See PR62077.
3902 case $BUILD_CONFIG in
3904 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3906 stage1_checking=--enable-checking=yes,types;;
3908 if test "x$enable_checking" = x && \
3909 test -d ${srcdir}/gcc && \
3910 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3911 stage1_checking=--enable-checking=yes,types,extra
3914 stage1_checking=--enable-checking=$enable_checking,types
3916 AC_SUBST(stage1_checking)
3918 # Enable -Werror in bootstrap stage2 and later.
3919 AC_ARG_ENABLE(werror,
3920 [AS_HELP_STRING([--enable-werror],
3921 [enable -Werror in bootstrap stage2 and later])],
3923 case ${enable_werror} in
3924 yes) stage2_werror_flag="--enable-werror-always" ;;
3925 *) stage2_werror_flag="" ;;
3929 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3930 case $BUILD_CONFIG in
3932 stage2_werror_flag="--enable-werror-always" ;;
3934 stage2_werror_flag="--enable-werror-always" ;;
3939 AC_SUBST(stage2_werror_flag)
3941 # Specify what files to not compare during bootstrap.
3943 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3945 hppa*64*-*-hpux*) ;;
3946 hppa*-*-hpux*) compare_exclusions="$compare_exclusions | */libgcc/lib2funcs* | gcc/function-tests.o" ;;
3947 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
3949 AC_SUBST(compare_exclusions)
3951 AC_CONFIG_FILES([Makefile],
3952 [sed "$extrasub_build" Makefile |
3953 sed "$extrasub_host" |
3954 sed "$extrasub_target" > mf$$
3955 mv -f mf$$ Makefile],
3956 [extrasub_build="$extrasub_build"
3957 extrasub_host="$extrasub_host"
3958 extrasub_target="$extrasub_target"])