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, 2020 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([libtool.m4])
28 m4_include([ltoptions.m4])
29 m4_include([ltsugar.m4])
30 m4_include([ltversion.m4])
31 m4_include([lt~obsolete.m4])
32 m4_include([config/isl.m4])
34 AC_INIT(move-if-change)
35 AC_DISABLE_OPTION_CHECKING
38 # if PWD already has a value, it is probably wrong.
39 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
41 # Export original configure arguments for use by sub-configures.
42 # Quote arguments with shell meta charatcers.
43 TOPLEVEL_CONFIGURE_ARGUMENTS=
44 set -- "$progname" "$@"
48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
50 # if the argument is of the form -foo=baz, quote the baz part only
51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
54 # Add the quoted argument to the list.
55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
57 if test "$silent" = yes; then
58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
60 # Remove the initial space we just introduced and, as these will be
61 # expanded by make, quote '$'.
62 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
63 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
65 # Find the build, host, and target systems.
66 ACX_NONCANONICAL_BUILD
68 ACX_NONCANONICAL_TARGET
70 dnl Autoconf 2.5x and later will set a default program prefix if
71 dnl --target was used, even if it was the same as --host. Disable
72 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
74 test "$host_noncanonical" = "$target_noncanonical" &&
75 test "$program_prefix$program_suffix$program_transform_name" = \
77 program_transform_name=s,y,y,
82 m4_pattern_allow([^AS_FOR_TARGET$])dnl
83 m4_pattern_allow([^AS_FOR_BUILD$])dnl
85 # Get 'install' or 'install-sh' and its variants.
92 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
94 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
96 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
97 INSTALL="${srcpwd}/install-sh -c"
100 # Set srcdir to "." if that's what it is.
101 # This is important for multilib support.
103 if test "${pwd}" = "${srcpwd}" ; then
111 ### To add a new directory to the tree, first choose whether it is a target
112 ### or a host dependent tool. Then put it into the appropriate list
113 ### (library or tools, host or target), doing a dependency sort.
115 # Subdirs will be configured in the order listed in build_configdirs,
116 # configdirs, or target_configdirs; see the serialization section below.
118 # Dependency sorting is only needed when *configuration* must be done in
119 # a particular order. In all cases a dependency should be specified in
120 # the Makefile, whether or not it's implicitly specified here.
122 # Double entries in build_configdirs, configdirs, or target_configdirs may
123 # cause circular dependencies and break everything horribly.
125 # these library is used by various programs built for the build
128 build_libs="build-libiberty build-libcpp"
130 # these tools are built for the build environment
131 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
133 # these libraries are used by various programs built for the host environment
135 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv libctf"
137 # these tools are built for the host environment
138 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
139 # know that we are building the simulator.
140 # binutils, gas and ld appear in that order because it makes sense to run
141 # "make check" in that particular order.
142 # If --enable-gold is used, "gold" may replace "ld".
143 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"
145 # these libraries are built for the target environment, and are built after
146 # the host libraries and the host tools (which may be a cross compiler)
147 # Note that libiberty is not a target library.
148 target_libraries="target-libgcc \
149 target-libbacktrace \
153 target-liboffloadmic \
157 target-libstdc++-v3 \
158 target-libsanitizer \
168 # these tools are built using the target libraries, and are intended to
169 # run only in the target environment
171 # note: any program that *uses* libraries that are in the "target_libraries"
172 # list belongs in this list.
174 target_tools="target-rda"
176 ################################################################################
178 ## All tools belong in one of the four categories, and are assigned above
179 ## We assign ${configdirs} this way to remove all embedded newlines. This
180 ## is important because configure will choke if they ever get through.
181 ## ${configdirs} is directories we build using the host tools.
182 ## ${target_configdirs} is directories we build using the target tools.
183 configdirs=`echo ${host_libs} ${host_tools}`
184 target_configdirs=`echo ${target_libraries} ${target_tools}`
185 build_configdirs=`echo ${build_libs} ${build_tools}`
187 m4_divert_text([PARSE_ARGS],
190 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
191 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
192 m4_popdef([AS_MESSAGE_LOG_FD])dnl
195 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
198 ################################################################################
200 srcname="gnu development package"
202 # This gets set non-empty for some net releases of packages.
205 # Define is_cross_compiler to save on calls to 'test'.
207 if test x"${host}" = x"${target}" ; then
210 is_cross_compiler=yes
213 # Find the build and target subdir names.
215 # Be sure to cover against remnants of an in-tree build.
216 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
217 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
218 Use a pristine source tree when building in a separate tree])
221 # Skipdirs are removed silently.
223 # Noconfigdirs are removed loudly.
227 # Make sure we don't let GNU ld be added if we didn't want it.
228 if test x$with_gnu_ld = xno ; then
230 noconfigdirs="$noconfigdirs ld gold"
234 # Make sure we don't let GNU as be added if we didn't want it.
235 if test x$with_gnu_as = xno ; then
237 noconfigdirs="$noconfigdirs gas"
241 AC_ARG_WITH(system-zlib,
242 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
243 # Make sure we don't let ZLIB be added if we didn't want it.
244 if test x$with_system_zlib = xyes ; then
246 noconfigdirs="$noconfigdirs zlib"
249 # Don't compile the bundled readline/libreadline.a if --with-system-readline
251 if test x$with_system_readline = xyes ; then
252 noconfigdirs="$noconfigdirs readline"
255 # some tools are so dependent upon X11 that if we're not building with X,
256 # it's not even worth trying to configure, much less build, that tool.
259 yes | "") ;; # the default value for this tree is that X11 is available
261 skipdirs="${skipdirs} tk itcl libgui"
262 # We won't be able to build gdbtk without X.
265 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
268 # Some are only suitable for cross toolchains.
269 # Remove these if host=target.
270 cross_only="target-libgloss target-newlib target-opcodes"
272 case $is_cross_compiler in
273 no) skipdirs="${skipdirs} ${cross_only}" ;;
276 # If both --with-headers and --with-libs are specified, default to
278 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
279 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
280 if test x"${with_newlib}" = x ; then
285 # Recognize --with-newlib/--without-newlib.
286 case ${with_newlib} in
287 no) skipdirs="${skipdirs} target-newlib" ;;
288 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
291 AC_ARG_ENABLE(as-accelerator-for,
292 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
293 [build as offload target compiler.
294 Specify offload host triple by ARG])])
296 AC_ARG_ENABLE(offload-targets,
297 [AS_HELP_STRING([--enable-offload-targets=LIST],
298 [enable offloading to devices from comma-separated LIST of
299 TARGET[=DIR]. Use optional path to find offload target compiler
302 if test x"$enable_offload_targets" = x; then
303 AC_MSG_ERROR([no offload targets specified])
305 ], [enable_offload_targets=])
307 # Handle --enable-gold, --enable-ld.
308 # --disable-gold [--enable-ld]
309 # Build only ld. Default option.
310 # --enable-gold [--enable-ld]
311 # Build both gold and ld. Install gold as "ld.gold", install ld
312 # as "ld.bfd" and "ld".
313 # --enable-gold=default [--enable-ld]
314 # Build both gold and ld. Install gold as "ld.gold" and "ld",
315 # install ld as "ld.bfd".
316 # --enable-gold[=default] --disable-ld
317 # Build only gold, which is then installed as both "ld.gold" and "ld".
318 # --enable-gold --enable-ld=default
319 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
321 # In other words, ld is default
322 # --enable-gold=default --enable-ld=default
327 [AS_HELP_STRING([[--enable-gold[=ARG]]],
328 [build gold @<:@ARG={default,yes,no}@:>@])],
329 ENABLE_GOLD=$enableval,
331 case "${ENABLE_GOLD}" in
333 # Check for ELF target.
336 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
337 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
338 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
339 | *-*-solaris2* | *-*-nto* | *-*-nacl* | *-*-haiku*)
341 *-*-linux*aout* | *-*-linux*oldld*)
349 if test "$is_elf" = "yes"; then
350 # Check for target supported by gold.
352 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
353 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
354 configdirs="$configdirs gold"
355 if test x${ENABLE_GOLD} = xdefault; then
366 AC_MSG_ERROR([invalid --enable-gold argument])
371 [AS_HELP_STRING([[--enable-ld[=ARG]]],
372 [build ld @<:@ARG={default,yes,no}@:>@])],
373 ENABLE_LD=$enableval,
376 case "${ENABLE_LD}" in
378 if test x${default_ld} != x; then
379 AC_MSG_ERROR([either gold or ld can be the default ld])
385 if test x${ENABLE_GOLD} != xyes; then
386 AC_MSG_WARN([neither ld nor gold are enabled])
388 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
391 AC_MSG_ERROR([invalid --enable-ld argument])
395 AC_ARG_ENABLE(gprofng,
396 [AS_HELP_STRING([[--enable-gprofng[=ARG]]],
397 [build gprofng @<:@ARG={yes,no}@:>@])],
398 enable_gprofng=$enableval,
400 if test "$enable_gprofng" = "yes"; then
402 x86_64-*-linux* | i?86-*-linux* | aarch64-*-linux*)
403 configdirs="$configdirs gprofng"
410 # Decide the default method for compressing debug sections.
411 # Provide a configure time option to override our default.
412 AC_ARG_ENABLE(compressed_debug_sections,
413 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
414 [Enable compressed debug sections for gas, gold or ld by
417 if test x"$enable_compressed_debug_sections" = xyes; then
418 AC_MSG_ERROR([no program with compressed debug sections specified])
420 ], [enable_compressed_debug_sections=])
422 # Configure extra directories which are host specific
426 configdirs="$configdirs libtermcap" ;;
429 # A target can indicate whether a language isn't supported for some reason.
430 # Only spaces may be used in this macro; not newlines or tabs.
431 unsupported_languages=
433 # Remove more programs from consideration, based on the host or
434 # target this usually means that a port of the program doesn't
438 i[[3456789]]86-*-msdosdjgpp*)
439 noconfigdirs="$noconfigdirs tcl tk itcl"
443 # Default to --disable-year2038 until we can handle differences between
444 # projects that use gnulib (which understands year 2038) and projects that
446 AC_ARG_ENABLE(year2038,
447 AS_HELP_STRING([--enable-year2038],
448 [enable support for timestamps past the year 2038]),
449 ENABLE_YEAR2038=$enableval,
452 if test "${ENABLE_YEAR2038}" = "no" ; then
456 AC_ARG_ENABLE(libquadmath,
457 AS_HELP_STRING([--disable-libquadmath],
458 [do not build libquadmath directory]),
459 ENABLE_LIBQUADMATH=$enableval,
460 ENABLE_LIBQUADMATH=yes)
461 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
462 noconfigdirs="$noconfigdirs target-libquadmath"
466 AC_ARG_ENABLE(libquadmath-support,
467 AS_HELP_STRING([--disable-libquadmath-support],
468 [disable libquadmath support for Fortran]),
469 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
470 ENABLE_LIBQUADMATH_SUPPORT=yes)
471 enable_libquadmath_support=
472 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
473 enable_libquadmath_support=no
477 AC_ARG_ENABLE(libada,
478 [AS_HELP_STRING([--enable-libada], [build libada directory])],
479 ENABLE_LIBADA=$enableval,
481 if test "${ENABLE_LIBADA}" != "yes" ; then
482 noconfigdirs="$noconfigdirs gnattools"
485 AC_ARG_ENABLE(libssp,
486 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
487 ENABLE_LIBSSP=$enableval,
490 AC_ARG_ENABLE(libstdcxx,
491 AS_HELP_STRING([--disable-libstdcxx],
492 [do not build libstdc++-v3 directory]),
493 ENABLE_LIBSTDCXX=$enableval,
494 ENABLE_LIBSTDCXX=default)
495 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
496 noconfigdirs="$noconfigdirs target-libstdc++-v3"
499 # If this is accelerator compiler and its target is intelmic we enable
500 # target liboffloadmic by default. If this is compiler with offloading
501 # for intelmic we enable host liboffloadmic by default. Otherwise
502 # liboffloadmic is disabled by default.
503 AC_ARG_ENABLE([liboffloadmic],
504 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
505 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
506 [case "$enableval" in
508 enable_liboffloadmic=$enableval ;;
510 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
512 [if test x"$enable_as_accelerator_for" != x; then
514 *-intelmic-* | *-intelmicemul-*)
515 enable_liboffloadmic=target
516 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
519 enable_liboffloadmic=no
523 case "${enable_offload_targets}" in
524 *-intelmic-* | *-intelmicemul-*)
525 enable_liboffloadmic=host
526 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
529 enable_liboffloadmic=no
533 AC_SUBST(extra_liboffloadmic_configure_flags)
535 # Enable libgomp by default on hosted POSIX systems, and a few others.
536 if test x$enable_libgomp = x ; then
538 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
540 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
542 *-*-solaris2* | *-*-hpux11*)
544 *-*-darwin* | *-*-aix*)
549 noconfigdirs="$noconfigdirs target-libgomp"
554 # Disable libatomic on unsupported systems.
555 if test -d ${srcdir}/libatomic; then
556 if test x$enable_libatomic = x; then
557 AC_MSG_CHECKING([for libatomic support])
558 if (srcdir=${srcdir}/libatomic; \
559 . ${srcdir}/configure.tgt; \
560 test -n "$UNSUPPORTED")
563 noconfigdirs="$noconfigdirs target-libatomic"
570 # Disable liboffloadmic on unsupported systems.
571 if test -d ${srcdir}/liboffloadmic; then
572 if test x$enable_liboffloadmic != xno; then
573 AC_MSG_CHECKING([for liboffloadmic support])
574 if (srcdir=${srcdir}/liboffloadmic; \
575 . ${srcdir}/configure.tgt; \
576 test -n "$UNSUPPORTED")
579 noconfigdirs="$noconfigdirs target-liboffloadmic"
586 # Disable libitm on unsupported systems.
587 if test -d ${srcdir}/libitm; then
588 if test x$enable_libitm = x; then
589 AC_MSG_CHECKING([for libitm support])
590 if (srcdir=${srcdir}/libitm; \
591 . ${srcdir}/configure.tgt; \
592 test -n "$UNSUPPORTED")
595 noconfigdirs="$noconfigdirs target-libitm"
602 # Disable libsanitizer on unsupported systems.
603 if test -d ${srcdir}/libsanitizer; then
604 if test x$enable_libsanitizer = x; then
605 AC_MSG_CHECKING([for libsanitizer support])
606 if (srcdir=${srcdir}/libsanitizer; \
607 . ${srcdir}/configure.tgt; \
608 test -n "$UNSUPPORTED")
611 noconfigdirs="$noconfigdirs target-libsanitizer"
618 # Disable libvtv on unsupported systems.
619 if test -d ${srcdir}/libvtv; then
620 if test x$enable_libvtv = x; then
621 AC_MSG_CHECKING([for libvtv support])
622 if (srcdir=${srcdir}/libvtv; \
623 . ${srcdir}/configure.tgt; \
624 test "$VTV_SUPPORTED" != "yes")
627 noconfigdirs="$noconfigdirs target-libvtv"
635 # Disable libhsail-rt on unsupported systems.
636 if test -d ${srcdir}/libhsail-rt; then
637 if test x$enable_libhsail_rt = x; then
638 AC_MSG_CHECKING([for libhsail-rt support])
639 if (srcdir=${srcdir}/libhsail-rt; \
640 . ${srcdir}/configure.tgt; \
641 test -n "$UNSUPPORTED")
644 unsupported_languages="$unsupported_languages brig"
645 # This implicitly disables also target-libhsail-rt as it won't
646 # get added to the build without BRIG FE.
654 # Disable libquadmath for some systems.
657 noconfigdirs="$noconfigdirs target-libquadmath"
659 # libquadmath is unused on AIX and libquadmath build process use of
660 # LD_LIBRARY_PATH can break AIX bootstrap.
661 powerpc-*-aix* | rs6000-*-aix*)
662 noconfigdirs="$noconfigdirs target-libquadmath"
666 # Disable libssp for some systems.
669 # No hosted I/O support.
670 noconfigdirs="$noconfigdirs target-libssp"
672 powerpc-*-aix* | rs6000-*-aix*)
673 noconfigdirs="$noconfigdirs target-libssp"
676 # libssp uses a misaligned load to trigger a fault, but the RL78
677 # doesn't fault for those - instead, it gives a build-time error
678 # for explicit misaligned loads.
679 noconfigdirs="$noconfigdirs target-libssp"
682 # No hosted I/O support.
683 noconfigdirs="$noconfigdirs target-libssp"
687 # Disable libstdc++-v3 for some systems.
688 # Allow user to override this if they pass --enable-libstdc++-v3
689 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
692 # VxWorks uses the Dinkumware C++ library.
693 noconfigdirs="$noconfigdirs target-libstdc++-v3"
696 # the C++ libraries don't build on top of CE's C libraries
697 noconfigdirs="$noconfigdirs target-libstdc++-v3"
700 noconfigdirs="$noconfigdirs target-libstdc++-v3"
703 noconfigdirs="$noconfigdirs target-libstdc++-v3"
708 # Disable Fortran for some systems.
711 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
712 unsupported_languages="$unsupported_languages fortran"
716 # Disable libffi for some systems.
720 i[[3456789]]86-*-darwin*)
722 x86_64-*-darwin[[912]]*)
725 noconfigdirs="$noconfigdirs target-libffi"
728 noconfigdirs="$noconfigdirs target-libffi"
731 noconfigdirs="$noconfigdirs target-libffi"
734 noconfigdirs="$noconfigdirs target-libffi"
737 noconfigdirs="$noconfigdirs target-libffi"
740 noconfigdirs="$noconfigdirs target-libffi"
743 noconfigdirs="$noconfigdirs target-libffi"
746 noconfigdirs="$noconfigdirs target-libffi"
749 noconfigdirs="$noconfigdirs target-libffi"
752 noconfigdirs="$noconfigdirs target-libffi"
755 noconfigdirs="$noconfigdirs target-libffi"
757 cris-*-* | crisv32-*-*)
761 *) # See PR46792 regarding target-libffi.
762 noconfigdirs="$noconfigdirs target-libffi";;
766 noconfigdirs="$noconfigdirs target-libffi"
771 noconfigdirs="$noconfigdirs target-libffi"
774 noconfigdirs="$noconfigdirs target-libffi"
776 i[[3456789]]86-w64-mingw*)
777 noconfigdirs="$noconfigdirs target-libffi"
779 i[[3456789]]86-*-mingw*)
780 noconfigdirs="$noconfigdirs target-libffi"
783 noconfigdirs="$noconfigdirs target-libffi"
786 noconfigdirs="$noconfigdirs target-libffi"
793 noconfigdirs="$noconfigdirs target-libffi"
796 noconfigdirs="$noconfigdirs target-libffi"
800 # Disable the go frontend on systems where it is known to not work. Please keep
801 # this in sync with contrib/config-list.mk.
803 *-*-darwin* | *-*-cygwin* | *-*-mingw*)
804 unsupported_languages="$unsupported_languages go"
808 # Only allow gdbserver on some systems.
809 if test -d ${srcdir}/gdbserver; then
810 if test x$enable_gdbserver = x; then
811 AC_MSG_CHECKING([for gdbserver support])
812 if (srcdir=${srcdir}/gdbserver; \
813 . ${srcdir}/configure.srv; \
814 test -n "$UNSUPPORTED")
817 noconfigdirs="$noconfigdirs gdbserver"
824 # Disable libgo for some systems where it is known to not work.
825 # For testing, you can easily override this with --enable-libgo.
826 if test x$enable_libgo = x; then
830 noconfigdirs="$noconfigdirs target-libgo"
832 *-*-cygwin* | *-*-mingw*)
833 noconfigdirs="$noconfigdirs target-libgo"
838 # Default libgloss CPU subdirectory.
839 libgloss_dir="$target_cpu"
842 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
851 cris-*-* | crisv32-*-*)
860 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
877 # Disable newlib and libgloss for various target OSes.
880 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
882 i[[3456789]]86-*-linux*)
883 # This section makes it possible to build newlib natively on linux.
884 # If we are using a cross compiler then don't configure newlib.
885 if test x${is_cross_compiler} != xno ; then
886 noconfigdirs="$noconfigdirs target-newlib"
888 noconfigdirs="$noconfigdirs target-libgloss"
889 # If we are not using a cross compiler, do configure newlib.
890 # Note however, that newlib will only be configured in this situation
891 # if the --with-newlib option has been given, because otherwise
892 # 'target-newlib' will appear in skipdirs.
894 i[[3456789]]86-*-rdos*)
895 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
897 sh*-*-pe|mips*-*-pe|arm-wince-pe)
898 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
901 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
904 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
907 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
910 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
913 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
916 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
918 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
919 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
922 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
925 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
928 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
931 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
934 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
937 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
940 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
948 noconfigdirs="$noconfigdirs ld gas gdb gprof"
949 noconfigdirs="$noconfigdirs sim target-rda"
952 noconfigdirs="$noconfigdirs ld gas gdb gprof"
953 noconfigdirs="$noconfigdirs sim target-rda"
956 noconfigdirs="$noconfigdirs ld gas gdb gprof"
957 noconfigdirs="$noconfigdirs sim target-rda"
959 i[[3456789]]86-*-darwin*)
960 noconfigdirs="$noconfigdirs ld gprof"
961 noconfigdirs="$noconfigdirs sim target-rda"
963 x86_64-*-darwin[[912]]*)
964 noconfigdirs="$noconfigdirs ld gas gprof"
965 noconfigdirs="$noconfigdirs sim target-rda"
968 noconfigdirs="$noconfigdirs ld gas gdb gprof"
969 noconfigdirs="$noconfigdirs sim target-rda"
974 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
975 && test -f /usr/local/include/gmp.h; then
980 # Remove unsupported stuff on all kaOS configurations.
981 noconfigdirs="$noconfigdirs target-libgloss"
988 noconfigdirs="$noconfigdirs target-libgloss"
991 noconfigdirs="$noconfigdirs target-libgloss"
993 # The tpf target doesn't support gdb yet.
995 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
998 noconfigdirs="$noconfigdirs target-rda"
1003 # ld works, but does not support shared libraries.
1004 # gas doesn't generate exception information.
1005 noconfigdirs="$noconfigdirs gas ld"
1008 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1011 # newlib is not 64 bit ready
1012 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1014 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1015 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1018 noconfigdirs="$noconfigdirs sim"
1021 noconfigdirs="$noconfigdirs target-libgloss"
1024 noconfigdirs="$noconfigdirs ld target-libgloss"
1027 if test x${with_avrlibc} != xno; then
1028 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1031 c4x-*-* | tic4x-*-*)
1032 noconfigdirs="$noconfigdirs target-libgloss"
1035 noconfigdirs="$noconfigdirs target-libgloss gdb"
1038 noconfigdirs="$noconfigdirs target-libgloss"
1041 noconfigdirs="$noconfigdirs gdb"
1044 noconfigdirs="$noconfigdirs gdb"
1047 noconfigdirs="$noconfigdirs target-rda gprof"
1050 noconfigdirs="$noconfigdirs"
1053 noconfigdirs="$noconfigdirs target-libgloss"
1056 noconfigdirs="$noconfigdirs target-libgloss"
1058 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1061 noconfigdirs="$noconfigdirs gdb"
1064 noconfigdirs="$noconfigdirs gdb ld"
1072 hppa*-*-openbsd* | \
1078 noconfigdirs="$noconfigdirs ld"
1081 noconfigdirs="$noconfigdirs gdb"
1084 # No gdb support yet.
1085 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1088 # No ld support yet.
1089 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1092 # No ld support yet.
1093 noconfigdirs="$noconfigdirs libgui itcl ld"
1095 i[[3456789]]86-w64-mingw*)
1097 i[[3456789]]86-*-mingw*)
1098 target_configdirs="$target_configdirs target-winsup"
1101 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1102 noconfigdirs="$noconfigdirs target-libgloss"
1103 # always build newlib if winsup directory is present.
1104 if test -d "$srcdir/winsup/cygwin"; then
1105 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1106 elif test -d "$srcdir/newlib"; then
1107 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1110 i[[3456789]]86-*-pe)
1111 noconfigdirs="$noconfigdirs target-libgloss"
1113 i[[3456789]]86-*-sco3.2v5*)
1114 # The linker does not yet know about weak symbols in COFF,
1115 # and is not configured to handle mixed ELF and COFF.
1116 noconfigdirs="$noconfigdirs ld target-libgloss"
1118 i[[3456789]]86-*-sco*)
1119 noconfigdirs="$noconfigdirs gprof target-libgloss"
1121 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1122 noconfigdirs="$noconfigdirs target-libgloss"
1124 i[[3456789]]86-*-sysv4*)
1125 noconfigdirs="$noconfigdirs target-libgloss"
1127 i[[3456789]]86-*-beos*)
1128 noconfigdirs="$noconfigdirs gdb"
1130 i[[3456789]]86-*-rdos*)
1131 noconfigdirs="$noconfigdirs gdb"
1134 noconfigdirs="$noconfigdirs gdb"
1137 noconfigdirs="$noconfigdirs sim"
1140 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1141 noconfigdirs="$noconfigdirs $target_libraries"
1144 noconfigdirs="$noconfigdirs gdb gprof"
1147 # copied from rs6000-*-* entry
1148 noconfigdirs="$noconfigdirs gprof"
1150 powerpc*-*-winnt* | powerpc*-*-pe*)
1151 target_configdirs="$target_configdirs target-winsup"
1152 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1153 # always build newlib.
1154 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1156 # This is temporary until we can link against shared libraries
1157 powerpcle-*-solaris*)
1158 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1161 noconfigdirs="$noconfigdirs gdb"
1164 noconfigdirs="$noconfigdirs gprof"
1167 noconfigdirs="$noconfigdirs gprof"
1170 noconfigdirs="$noconfigdirs gprof"
1173 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1176 noconfigdirs="$noconfigdirs gprof"
1178 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1179 if test x$with_newlib = xyes; then
1180 noconfigdirs="$noconfigdirs gprof"
1184 noconfigdirs="$noconfigdirs gprof target-libgloss"
1187 noconfigdirs="$noconfigdirs gprof target-libgloss"
1190 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1194 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1195 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1196 noconfigdirs="$noconfigdirs ld gas gprof"
1199 noconfigdirs="$noconfigdirs gprof"
1202 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1209 noconfigdirs="$noconfigdirs target-libgloss" ;;
1213 if test x${is_cross_compiler} = xno ; then
1218 noconfigdirs="$noconfigdirs sim"
1220 tilepro*-*-* | tilegx*-*-*)
1221 noconfigdirs="$noconfigdirs sim"
1224 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1227 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1230 noconfigdirs="$noconfigdirs ld"
1234 # If we aren't building newlib, then don't build libgloss, since libgloss
1235 # depends upon some newlib header files.
1236 case "${noconfigdirs}" in
1237 *target-libgloss*) ;;
1238 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1241 # Work in distributions that contain no compiler tools, like Autoconf.
1242 host_makefile_frag=/dev/null
1243 if test -d ${srcdir}/config ; then
1245 i[[3456789]]86-*-msdosdjgpp*)
1246 host_makefile_frag="config/mh-djgpp"
1249 ACX_CHECK_CYGWIN_CAT_WORKS
1250 host_makefile_frag="config/mh-cygwin"
1253 host_makefile_frag="config/mh-mingw"
1256 host_makefile_frag="config/mh-alpha-linux"
1259 host_makefile_frag="config/mh-pa-hpux10"
1262 host_makefile_frag="config/mh-pa"
1265 host_makefile_frag="config/mh-pa"
1268 host_makefile_frag="config/mh-darwin"
1271 host_makefile_frag="config/mh-ppc-aix"
1274 host_makefile_frag="config/mh-ppc-aix"
1279 if test "${build}" != "${host}" ; then
1280 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1281 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1282 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1283 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1284 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1285 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1286 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1287 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1288 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1289 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1290 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1291 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1293 AR_FOR_BUILD="\$(AR)"
1294 AS_FOR_BUILD="\$(AS)"
1295 CC_FOR_BUILD="\$(CC)"
1296 CXX_FOR_BUILD="\$(CXX)"
1297 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1298 GOC_FOR_BUILD="\$(GOC)"
1299 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1300 LD_FOR_BUILD="\$(LD)"
1301 NM_FOR_BUILD="\$(NM)"
1302 RANLIB_FOR_BUILD="\$(RANLIB)"
1303 WINDRES_FOR_BUILD="\$(WINDRES)"
1304 WINDMC_FOR_BUILD="\$(WINDMC)"
1310 # We must set the default linker to the linker used by gcc for the correct
1311 # operation of libtool. If LD is not defined and we are using gcc, try to
1312 # set the LD default to the ld used by gcc.
1313 if test -z "$LD"; then
1314 if test "$GCC" = yes; then
1317 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1319 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1321 case $gcc_prog_ld in
1322 # Accept absolute paths.
1323 [[\\/]* | [A-Za-z]:[\\/]*)]
1324 LD="$gcc_prog_ld" ;;
1329 # Check whether -static-libstdc++ -static-libgcc is supported.
1331 if test "$GCC" = yes; then
1332 saved_LDFLAGS="$LDFLAGS"
1334 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1335 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1337 AC_LINK_IFELSE([AC_LANG_SOURCE([
1338 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1339 #error -static-libstdc++ not implemented
1342 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1343 [AC_MSG_RESULT([no])])
1346 LDFLAGS="$saved_LDFLAGS"
1350 ACX_PROG_CMP_IGNORE_INITIAL
1352 AC_ARG_ENABLE([bootstrap],
1353 [AS_HELP_STRING([--enable-bootstrap],
1354 [enable bootstrapping @<:@yes if native build@:>@])],,
1355 enable_bootstrap=default)
1357 # Issue errors and warnings for invalid/strange bootstrap combinations.
1358 if test -r $srcdir/gcc/configure; then
1364 case "$have_compiler:$host:$target:$enable_bootstrap" in
1367 # Default behavior. Enable bootstrap if we have a compiler
1368 # and we are in a native configuration.
1369 yes:$build:$build:default)
1370 enable_bootstrap=yes ;;
1373 enable_bootstrap=no ;;
1375 # We have a compiler and we are in a native configuration, bootstrap is ok
1376 yes:$build:$build:yes)
1379 # Other configurations, but we have a compiler. Assume the user knows
1382 AC_MSG_WARN([trying to bootstrap a cross compiler])
1385 # No compiler: if they passed --enable-bootstrap explicitly, fail
1387 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1389 # Fail if wrong command line
1391 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1395 # When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1396 # C++98 compiler can still start the bootstrap.
1397 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1398 CXX="$CXX -std=gnu++98"
1401 AC_ARG_ENABLE([pgo-build],
1402 [AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1403 [enable the PGO build])],
1404 [enable_pgo_build=$enableval],
1405 [enable_pgo_build=no])
1407 # Issue errors and warnings for invalid/strange PGO build combinations.
1408 case "$have_compiler:$host:$target:$enable_pgo_build" in
1411 # Allow the PGO build only if we aren't building a compiler and
1412 # we are in a native configuration.
1413 no:$build:$build:yes | no:$build:$build:lto) ;;
1415 # Disallow the PGO bootstrap if we are building a compiler.
1416 yes:*:*:yes | yes:*:*:lto)
1417 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1420 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1424 if test "$enable_pgo_build" != "no"; then
1425 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1426 old_CFLAGS="$CFLAGS"
1427 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1428 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1429 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1430 [PGO_BUILD_GEN_CFLAGS=])
1431 CFLAGS="$old_CFLAGS"
1432 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1433 AC_MSG_RESULT([yes])
1434 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1437 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1440 if test "$enable_pgo_build" = "lto"; then
1441 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1442 old_CFLAGS="$CFLAGS"
1443 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1444 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1445 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1446 [PGO_BUILD_LTO_CFLAGS=])
1447 CFLAGS="$old_CFLAGS"
1448 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1449 AC_MSG_RESULT([yes])
1452 AC_MSG_WARN([LTO is disabled for the PGO build])
1456 AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1457 AC_SUBST(PGO_BUILD_USE_CFLAGS)
1458 AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1460 # Used for setting $lt_cv_objdir
1463 # Check for GMP, MPFR and MPC
1464 gmplibs="-lmpc -lmpfr -lgmp"
1468 # Specify a location for mpc
1469 # check for this first so it ends up on the link line before mpfr.
1471 [AS_HELP_STRING([--with-mpc=PATH],
1472 [specify prefix directory for installed MPC package.
1473 Equivalent to --with-mpc-include=PATH/include
1474 plus --with-mpc-lib=PATH/lib])])
1475 AC_ARG_WITH(mpc-include,
1476 [AS_HELP_STRING([--with-mpc-include=PATH],
1477 [specify directory for installed MPC include files])])
1478 AC_ARG_WITH(mpc-lib,
1479 [AS_HELP_STRING([--with-mpc-lib=PATH],
1480 [specify directory for the installed MPC library])])
1482 if test "x$with_mpc" != x; then
1483 gmplibs="-L$with_mpc/lib $gmplibs"
1484 gmpinc="-I$with_mpc/include $gmpinc"
1486 if test "x$with_mpc_include" != x; then
1487 gmpinc="-I$with_mpc_include $gmpinc"
1489 if test "x$with_mpc_lib" != x; then
1490 gmplibs="-L$with_mpc_lib $gmplibs"
1492 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1493 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1494 gmpinc='-I$$s/mpc/src '"$gmpinc"
1495 # Do not test the mpc version. Assume that it is sufficient, since
1496 # it is in the source tree, and the library has not been built yet
1497 # but it would be included on the link line in the version check below
1498 # hence making the test fail.
1502 # Specify a location for mpfr
1503 # check for this first so it ends up on the link line before gmp.
1504 AC_ARG_WITH(mpfr-dir,
1505 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1506 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1507 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1510 [AS_HELP_STRING([--with-mpfr=PATH],
1511 [specify prefix directory for installed MPFR package.
1512 Equivalent to --with-mpfr-include=PATH/include
1513 plus --with-mpfr-lib=PATH/lib])])
1514 AC_ARG_WITH(mpfr-include,
1515 [AS_HELP_STRING([--with-mpfr-include=PATH],
1516 [specify directory for installed MPFR include files])])
1517 AC_ARG_WITH(mpfr-lib,
1518 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1519 [specify directory for the installed MPFR library])])
1521 if test "x$with_mpfr" != x; then
1522 gmplibs="-L$with_mpfr/lib $gmplibs"
1523 gmpinc="-I$with_mpfr/include $gmpinc"
1525 if test "x$with_mpfr_include" != x; then
1526 gmpinc="-I$with_mpfr_include $gmpinc"
1528 if test "x$with_mpfr_lib" != x; then
1529 gmplibs="-L$with_mpfr_lib $gmplibs"
1531 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1532 # MPFR v3.1.0 moved the sources into a src sub-directory.
1533 if ! test -d ${srcdir}/mpfr/src; then
1535 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1537 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1538 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1539 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1540 # Do not test the mpfr version. Assume that it is sufficient, since
1541 # it is in the source tree, and the library has not been built yet
1542 # but it would be included on the link line in the version check below
1543 # hence making the test fail.
1547 # Specify a location for gmp
1548 AC_ARG_WITH(gmp-dir,
1549 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1550 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1551 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1554 [AS_HELP_STRING([--with-gmp=PATH],
1555 [specify prefix directory for the installed GMP package.
1556 Equivalent to --with-gmp-include=PATH/include
1557 plus --with-gmp-lib=PATH/lib])])
1558 AC_ARG_WITH(gmp-include,
1559 [AS_HELP_STRING([--with-gmp-include=PATH],
1560 [specify directory for installed GMP include files])])
1561 AC_ARG_WITH(gmp-lib,
1562 [AS_HELP_STRING([--with-gmp-lib=PATH],
1563 [specify directory for the installed GMP library])])
1566 if test "x$with_gmp" != x; then
1567 gmplibs="-L$with_gmp/lib $gmplibs"
1568 gmpinc="-I$with_gmp/include $gmpinc"
1570 if test "x$with_gmp_include" != x; then
1571 gmpinc="-I$with_gmp_include $gmpinc"
1573 if test "x$with_gmp_lib" != x; then
1574 gmplibs="-L$with_gmp_lib $gmplibs"
1576 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1577 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1578 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1579 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1580 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1581 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1582 # Do not test the gmp version. Assume that it is sufficient, since
1583 # it is in the source tree, and the library has not been built yet
1584 # but it would be included on the link line in the version check below
1585 # hence making the test fail.
1589 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1591 saved_CFLAGS="$CFLAGS"
1592 CFLAGS="$CFLAGS $gmpinc"
1593 # Check for the recommended and required versions of GMP.
1594 AC_MSG_CHECKING([for the correct version of gmp.h])
1595 AC_TRY_COMPILE([#include "gmp.h"],[
1596 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1597 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1598 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1601 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1602 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1603 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1604 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1607 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1608 [AC_MSG_RESULT([no]); have_gmp=no])
1610 # If we have GMP, check the MPFR version.
1611 if test x"$have_gmp" = xyes; then
1612 # Check for the recommended and required versions of MPFR.
1613 AC_MSG_CHECKING([for the correct version of mpfr.h])
1614 AC_TRY_COMPILE([#include <gmp.h>
1615 #include <mpfr.h>],[
1616 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1619 ], [AC_TRY_COMPILE([#include <gmp.h>
1620 #include <mpfr.h>],[
1621 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1624 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1625 [AC_MSG_RESULT([no]); have_gmp=no])
1628 # Check for the MPC header version.
1629 if test x"$have_gmp" = xyes ; then
1630 # Check for the recommended and required versions of MPC.
1631 AC_MSG_CHECKING([for the correct version of mpc.h])
1632 AC_TRY_COMPILE([#include <mpc.h>],[
1633 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1636 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1637 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1640 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1641 [AC_MSG_RESULT([no]); have_gmp=no])
1644 # Now check the MPFR library.
1645 if test x"$have_gmp" = xyes; then
1647 LIBS="$LIBS $gmplibs"
1648 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1649 AC_TRY_LINK([#include <mpc.h>],[
1656 mpfr_atan2 (n, n, x, GMP_RNDN);
1657 mpfr_erfc (n, x, GMP_RNDN);
1658 mpfr_subnormalize (x, t, GMP_RNDN);
1662 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1663 mpc_cosh (c, c, MPC_RNDNN);
1664 mpc_pow (c, c, c, MPC_RNDNN);
1665 mpc_acosh (c, c, MPC_RNDNN);
1667 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1671 CFLAGS="$saved_CFLAGS"
1673 # The library versions listed in the error message below should match
1674 # the HARD-minimums enforced above.
1675 if test x$have_gmp != xyes; then
1676 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1677 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1678 their locations. Source code for these libraries can be found at
1679 their respective hosting sites as well as at
1680 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1681 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1682 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1683 make sure that you have installed both the libraries and the header
1684 files. They may be located in separate packages.])
1688 # Flags needed for both GMP, MPFR and/or MPC.
1691 AC_SUBST(extra_mpfr_configure_flags)
1692 AC_SUBST(extra_mpc_gmp_configure_flags)
1693 AC_SUBST(extra_mpc_mpfr_configure_flags)
1694 AC_SUBST(extra_isl_gmp_configure_flags)
1696 # Libraries to use for stage1 or when not bootstrapping.
1697 AC_ARG_WITH(stage1-libs,
1698 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1699 [if test "$withval" = "no" -o "$withval" = "yes"; then
1702 stage1_libs=$withval
1705 AC_SUBST(stage1_libs)
1707 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1708 # default is yes if gcc is being built; no otherwise. The reason for
1709 # this default is that gdb is sometimes linked against GNU Source
1710 # Highlight, which is a shared library that uses C++ exceptions. In
1711 # this case, -static-libstdc++ will cause crashes.
1712 AC_ARG_WITH(static-standard-libraries,
1713 [AS_HELP_STRING([--with-static-standard-libraries],
1714 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1715 [], [with_static_standard_libraries=auto])
1716 if test "$with_static_standard_libraries" = auto; then
1717 with_static_standard_libraries=$have_compiler
1720 # Linker flags to use for stage1 or when not bootstrapping.
1721 AC_ARG_WITH(stage1-ldflags,
1722 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1723 [if test "$withval" = "no" -o "$withval" = "yes"; then
1726 stage1_ldflags=$withval
1729 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1730 # if supported. But if the user explicitly specified the libraries to use,
1731 # trust that they are doing what they want.
1732 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1733 -a "$have_static_libs" = yes; then
1734 stage1_ldflags="-static-libstdc++ -static-libgcc"
1736 AC_SUBST(stage1_ldflags)
1738 # Libraries to use for stage2 and later builds.
1739 AC_ARG_WITH(boot-libs,
1740 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1741 [if test "$withval" = "no" -o "$withval" = "yes"; then
1744 poststage1_libs=$withval
1747 AC_SUBST(poststage1_libs)
1749 # Linker flags to use for stage2 and later builds.
1750 AC_ARG_WITH(boot-ldflags,
1751 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1752 [linker flags for stage2 and later])],
1753 [if test "$withval" = "no" -o "$withval" = "yes"; then
1756 poststage1_ldflags=$withval
1758 [poststage1_ldflags=
1759 # In stages 2 and 3, default to linking libstdc++ and libgcc
1760 # statically. But if the user explicitly specified the libraries to
1761 # use, trust that they are doing what they want.
1762 if test "$poststage1_libs" = ""; then
1763 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1765 AC_SUBST(poststage1_ldflags)
1767 # GCC GRAPHITE dependency isl.
1768 # Basic setup is inlined here, actual checks are in config/isl.m4
1773 [Specify prefix directory for the installed isl package.
1774 Equivalent to --with-isl-include=PATH/include
1775 plus --with-isl-lib=PATH/lib])])
1777 # Treat --without-isl as a request to disable
1778 # GRAPHITE support and skip all following checks.
1779 if test "x$with_isl" != "xno"; then
1781 dnl Provide configure switches and initialize islinc & isllibs
1782 dnl with user input.
1784 dnl The versions of isl that work for Graphite
1786 dnl Only execute fail-action, if isl has been requested.
1788 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1791 # If the isl check failed, disable builds of in-tree variant of isl
1792 if test "x$with_isl" = xno ||
1793 test "x$gcc_cv_isl" = xno; then
1794 noconfigdirs="$noconfigdirs isl"
1801 # Check for LTO support.
1803 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1804 enable_lto=$enableval,
1805 enable_lto=yes; default_enable_lto=yes)
1807 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1808 build_lto_plugin=yes
1809 ],[if test x"$default_enable_lto" = x"yes" ; then
1811 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1812 # On other non-ELF platforms, LTO has yet to be validated.
1816 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1817 # It would also be nice to check the binutils support, but we don't
1818 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1819 # warn during gcc/ subconfigure; unless you're bootstrapping with
1820 # -flto it won't be needed until after installation anyway.
1822 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1823 *) if test x"$enable_lto" = x"yes"; then
1824 AC_MSG_ERROR([LTO support is not enabled for this target.])
1829 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1830 # Build it unless LTO was explicitly disabled.
1832 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1837 AC_ARG_ENABLE(linker-plugin-configure-flags,
1838 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1839 [additional flags for configuring linker plugins @<:@none@:>@])],
1840 extra_linker_plugin_configure_flags=$enableval,
1841 extra_linker_plugin_configure_flags=)
1842 AC_SUBST(extra_linker_plugin_configure_flags)
1843 AC_ARG_ENABLE(linker-plugin-flags,
1844 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1845 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1846 extra_linker_plugin_flags=$enableval,
1847 extra_linker_plugin_flags=)
1848 AC_SUBST(extra_linker_plugin_flags)
1850 # Enable --enable-host-shared.
1851 # Checked early to determine whether jit is an 'all' language
1852 AC_ARG_ENABLE(host-shared,
1853 [AS_HELP_STRING([--enable-host-shared],
1854 [build host code as shared libraries])],
1855 [host_shared=$enableval], [host_shared=no])
1856 AC_SUBST(host_shared)
1858 # By default, C and C++ are the only stage 1 languages.
1859 stage1_languages=,c,
1861 # Target libraries that we bootstrap.
1862 bootstrap_target_libs=,target-libgcc,
1864 # Figure out what language subdirectories are present.
1865 # Look if the user specified --enable-languages="..."; if not, use
1866 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1868 # NB: embedded tabs in this IF block -- do not untabify
1869 if test -d ${srcdir}/gcc; then
1870 if test x"${enable_languages+set}" != xset; then
1871 if test x"${LANGUAGES+set}" = xset; then
1872 enable_languages="${LANGUAGES}"
1873 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1875 enable_languages=default
1878 if test x"${enable_languages}" = x ||
1879 test x"${enable_languages}" = xyes;
1881 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1885 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1887 # 'f95' is the old name for the 'fortran' language. We issue a warning
1888 # and make the substitution.
1889 case ,${enable_languages}, in
1891 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1892 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1896 # If bootstrapping, C++ must be enabled.
1897 case ",$enable_languages,:$enable_bootstrap" in
1900 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1901 enable_languages="${enable_languages},c++"
1903 AC_MSG_ERROR([bootstrapping requires c++ sources])
1908 # First scan to see if an enabled language requires some other language.
1909 # We assume that a given config-lang.in will list all the language
1910 # front ends it requires, even if some are required indirectly.
1911 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1912 case ${lang_frag} in
1914 # The odd quoting in the next line works around
1915 # an apparent bug in bash 1.12 on linux.
1916 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1918 # From the config-lang.in, get $language, $lang_requires, and
1919 # $lang_requires_boot_languages.
1922 lang_requires_boot_languages=
1923 # set srcdir during sourcing lang_frag to the gcc dir.
1924 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1925 # polutes this shell
1926 saved_srcdir=${srcdir}
1927 srcdir=${srcdir}/gcc . ${lang_frag}
1928 srcdir=${saved_srcdir}
1929 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1930 case ,${enable_languages}, in
1935 echo " \`$other' language required by \`$language'; enabling" 1>&2
1936 enable_languages="${enable_languages},${other}"
1940 for other in ${lang_requires_boot_languages} ; do
1941 if test "$other" != "c"; then
1942 case ,${enable_stage1_languages}, in
1947 case ,${enable_languages}, in
1949 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1950 enable_stage1_languages="$enable_stage1_languages,${other}"
1961 new_enable_languages=,c,
1963 # If LTO is enabled, add the LTO front end.
1964 if test "$enable_lto" = "yes" ; then
1965 case ,${enable_languages}, in
1967 *) enable_languages="${enable_languages},lto" ;;
1969 if test "${build_lto_plugin}" = "yes" ; then
1970 configdirs="$configdirs lto-plugin"
1974 # If we're building an offloading compiler, add the LTO front end.
1975 if test x"$enable_as_accelerator_for" != x ; then
1976 case ,${enable_languages}, in
1978 *) enable_languages="${enable_languages},lto" ;;
1982 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
1983 potential_languages=,c,
1985 enabled_target_libs=
1986 disabled_target_libs=
1988 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1989 case ${lang_frag} in
1991 # The odd quoting in the next line works around
1992 # an apparent bug in bash 1.12 on linux.
1993 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1995 # From the config-lang.in, get $language, $target_libs,
1996 # $lang_dirs, $boot_language, and $build_by_default
2002 build_by_default=yes
2003 # set srcdir during sourcing. See above about save & restore
2004 saved_srcdir=${srcdir}
2005 srcdir=${srcdir}/gcc . ${lang_frag}
2006 srcdir=${saved_srcdir}
2007 if test x${language} = x; then
2008 echo "${lang_frag} doesn't set \$language." 1>&2
2012 if test "$language" = "c++"; then
2017 # C is always enabled, so no need to add it again
2018 if test "$language" != "c"; then
2019 case ,${enable_languages}, in
2021 # Language was explicitly selected; include it
2025 # All languages are enabled
2029 # 'default' was selected, select it if it is a default language
2030 add_this_lang=${build_by_default}
2035 # Disable languages that need other directories if these aren't available.
2036 for i in $subdir_requires; do
2037 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2038 case ${add_this_lang} in
2040 # Specifically requested language; tell them.
2041 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2044 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2045 add_this_lang=unsupported
2049 add_this_lang=unsupported
2054 # Disable Ada if no preexisting GNAT is available.
2055 case ${add_this_lang}:${language}:${have_gnat} in
2057 # Specifically requested language; tell them.
2058 AC_MSG_ERROR([GNAT is required to build $language])
2061 AC_MSG_WARN([GNAT is required to build $language])
2062 add_this_lang=unsupported
2066 add_this_lang=unsupported
2070 # Disable jit if -enable-host-shared not specified
2071 case ${add_this_lang}:${language}:${host_shared} in
2073 # PR jit/64780: explicitly specify --enable-host-shared
2075 Enabling language "jit" requires --enable-host-shared.
2077 --enable-host-shared typically slows the rest of the compiler down by
2078 a few %, so you must explicitly enable it.
2080 If you want to build both the jit and the regular compiler, it is often
2081 best to do this via two separate configure/builds, in separate
2082 directories, to avoid imposing the performance cost of
2083 --enable-host-shared on the regular compiler.])
2086 AC_MSG_WARN([--enable-host-shared required to build $language])
2087 add_this_lang=unsupported
2091 add_this_lang=unsupported
2095 # Disable a language that is unsupported by the target.
2096 case "${add_this_lang}: $unsupported_languages " in
2100 AC_MSG_WARN([${language} not supported for this target])
2101 add_this_lang=unsupported
2105 case $add_this_lang in
2107 # Remove language-dependent dirs.
2108 disabled_target_libs="$disabled_target_libs $target_libs"
2109 noconfigdirs="$noconfigdirs $lang_dirs"
2112 # Remove language-dependent dirs; still show language as supported.
2113 disabled_target_libs="$disabled_target_libs $target_libs"
2114 noconfigdirs="$noconfigdirs $lang_dirs"
2115 potential_languages="${potential_languages}${language},"
2118 new_enable_languages="${new_enable_languages}${language},"
2119 potential_languages="${potential_languages}${language},"
2120 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2121 enabled_target_libs="$enabled_target_libs $target_libs"
2122 case "${boot_language}:,$enable_stage1_languages," in
2123 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2124 # Add to (comma-separated) list of stage 1 languages.
2125 case ",$stage1_languages," in
2126 *,$language,* | ,yes, | ,all,) ;;
2127 *) stage1_languages="${stage1_languages}${language}," ;;
2129 # We need to bootstrap any supporting libraries.
2130 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2139 # Add target libraries which are only needed for disabled languages
2141 if test -n "$disabled_target_libs"; then
2142 for dir in $disabled_target_libs; do
2143 case " $enabled_target_libs " in
2145 *) noconfigdirs="$noconfigdirs $dir" ;;
2150 AC_ARG_ENABLE(stage1-languages,
2151 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2152 [choose additional languages to build during
2153 stage1. Mostly useful for compiler development])],
2154 [case ,${enable_stage1_languages}, in
2156 # Set it to something that will have no effect in the loop below
2157 enable_stage1_languages=c ;;
2159 enable_stage1_languages=`echo $new_enable_languages | \
2160 sed -e "s/^,//" -e "s/,$//" ` ;;
2162 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2163 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2166 # Add "good" languages from enable_stage1_languages to stage1_languages,
2167 # while "bad" languages go in missing_languages. Leave no duplicates.
2168 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2169 case $potential_languages in
2171 case $stage1_languages in
2173 *) stage1_languages="$stage1_languages$i," ;;
2176 case $missing_languages in
2178 *) missing_languages="$missing_languages$i," ;;
2183 # Remove leading/trailing commas that were added for simplicity
2184 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2185 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2186 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2187 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2189 if test "x$missing_languages" != x; then
2191 The following requested languages could not be built: ${missing_languages}
2192 Supported languages are: ${potential_languages}])
2194 if test "x$new_enable_languages" != "x$enable_languages"; then
2195 echo The following languages will be built: ${new_enable_languages}
2196 enable_languages="$new_enable_languages"
2199 AC_SUBST(stage1_languages)
2200 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2203 # Handle --disable-<component> generically.
2204 for dir in $configdirs $build_configdirs $target_configdirs ; do
2205 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2206 varname=`echo $dirname | sed -e s/+/_/g`
2207 if eval test x\${enable_${varname}} "=" xno ; then
2208 noconfigdirs="$noconfigdirs $dir"
2212 # Check for Boehm's garbage collector
2213 AC_ARG_ENABLE(objc-gc,
2214 [AS_HELP_STRING([--enable-objc-gc],
2215 [enable use of Boehm's garbage collector with the
2216 GNU Objective-C runtime])])
2217 AC_ARG_WITH([target-bdw-gc],
2218 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2219 [specify prefix directory for installed bdw-gc package.
2220 Equivalent to --with-target-bdw-gc-include=PATH/include
2221 plus --with-target-bdw-gc-lib=PATH/lib])])
2222 AC_ARG_WITH([target-bdw-gc-include],
2223 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2224 [specify directories for installed bdw-gc include files])])
2225 AC_ARG_WITH([target-bdw-gc-lib],
2226 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2227 [specify directories for installed bdw-gc library])])
2229 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2230 AC_MSG_CHECKING([for bdw garbage collector])
2231 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2232 dnl no bdw-gw options, assume default locations
2233 AC_MSG_RESULT([using bdw-gc in default locations])
2235 dnl bdw-gw options, first error checking, complete checking in libobjc
2236 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2237 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2238 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2239 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2241 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2246 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2247 case ,${enable_languages}, in
2249 # Disable libitm, libsanitizer if we're not building libstdc++
2250 case "${noconfigdirs}" in
2251 *target-libstdc++-v3*)
2252 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2258 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2262 # If gcc/ is not in the source tree then we'll not be building a
2263 # target compiler, assume in that case we don't want to build any
2264 # target libraries or tools.
2266 # This was added primarily for the benefit for binutils-gdb who reuse
2267 # this configure script, but don't always have target tools available.
2268 if test ! -d ${srcdir}/gcc; then
2269 skipdirs="${skipdirs} ${target_configdirs}"
2272 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2273 # $build_configdirs and $target_configdirs.
2274 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2277 for dir in . $skipdirs $noconfigdirs ; do
2278 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2279 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2280 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2281 if test -r $srcdir/$dirname/configure ; then
2282 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2285 notsupp="$notsupp $dir"
2289 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2290 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2291 if test -r $srcdir/$dirname/configure ; then
2292 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2295 notsupp="$notsupp $dir"
2299 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2300 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2301 if test -r $srcdir/$dirname/configure ; then
2302 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2305 notsupp="$notsupp $dir"
2311 # Quietly strip out all directories which aren't configurable in this tree.
2312 # This relies on all configurable subdirectories being autoconfiscated, which
2314 build_configdirs_all="$build_configdirs"
2316 for i in ${build_configdirs_all} ; do
2317 j=`echo $i | sed -e s/build-//g`
2318 if test -f ${srcdir}/$j/configure ; then
2319 build_configdirs="${build_configdirs} $i"
2323 configdirs_all="$configdirs"
2325 for i in ${configdirs_all} ; do
2326 if test -f ${srcdir}/$i/configure ; then
2327 configdirs="${configdirs} $i"
2331 target_configdirs_all="$target_configdirs"
2333 for i in ${target_configdirs_all} ; do
2334 j=`echo $i | sed -e s/target-//g`
2335 if test -f ${srcdir}/$j/configure ; then
2336 target_configdirs="${target_configdirs} $i"
2340 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2341 # so we have to add it after the preceding checks.
2342 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2344 case " $configdirs " in
2346 # If we can build libiberty, we can also build libiberty-linker-plugin.
2347 configdirs="$configdirs libiberty-linker-plugin"
2348 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2349 --with-libiberty=../libiberty-linker-plugin";;
2351 AC_MSG_ERROR([libiberty missing]);;
2355 # Sometimes we have special requirements for the host libiberty.
2356 extra_host_libiberty_configure_flags=
2357 case " $configdirs " in
2358 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
2359 # When these are to be built as shared libraries, the same applies to
2361 extra_host_libiberty_configure_flags=--enable-shared
2364 AC_SUBST(extra_host_libiberty_configure_flags)
2366 # Sometimes we have special requirements for the host zlib.
2367 extra_host_zlib_configure_flags=
2368 case " $configdirs " in
2370 # When bfd is to be built as a shared library, the same applies to
2372 if test "$enable_shared" = "yes"; then
2373 extra_host_zlib_configure_flags=--enable-host-shared
2377 AC_SUBST(extra_host_zlib_configure_flags)
2379 # Produce a warning message for the subdirs we can't configure.
2380 # This isn't especially interesting in the Cygnus tree, but in the individual
2381 # FSF releases, it's important to let people know when their machine isn't
2382 # supported by the one or two programs in a package.
2384 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2385 # If $appdirs is non-empty, at least one of those directories must still
2386 # be configured, or we error out. (E.g., if the gas release supports a
2387 # specified target in some subdirs but not the gas subdir, we shouldn't
2388 # pretend that all is well.)
2389 if test -n "$appdirs" ; then
2390 for dir in $appdirs ; do
2391 if test -r $dir/Makefile.in ; then
2392 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2396 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2402 if test -n "$appdirs" ; then
2403 echo "*** This configuration is not supported by this package." 1>&2
2407 # Okay, some application will build, or we don't care to check. Still
2408 # notify of subdirs not getting built.
2409 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2410 echo " ${notsupp}" 1>&2
2411 echo " (Any other directories should still work fine.)" 1>&2
2419 # To find our prefix, in gcc_cv_tool_prefix.
2424 AC_ARG_WITH([build-sysroot],
2425 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2426 [use sysroot as the system root during the build])],
2427 [if test x"$withval" != x ; then
2428 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2430 [SYSROOT_CFLAGS_FOR_TARGET=])
2431 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2433 AC_ARG_WITH([debug-prefix-map],
2434 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2435 [map A to B, C to D ... in debug information])],
2436 [if test x"$withval" != x; then
2437 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2438 for debug_map in $withval; do
2439 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2442 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2443 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2445 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2446 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2447 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2448 # We want to ensure that TARGET libraries (which we know are built with
2449 # gcc) are built with "-O2 -g", so include those options when setting
2450 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2451 if test "x$CFLAGS_FOR_TARGET" = x; then
2452 if test "x${is_cross_compiler}" = xyes; then
2453 CFLAGS_FOR_TARGET="-g -O2"
2455 CFLAGS_FOR_TARGET=$CFLAGS
2458 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2461 *" -g "* | *" -g3 "*) ;;
2462 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2466 AC_SUBST(CFLAGS_FOR_TARGET)
2468 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2469 if test "x${is_cross_compiler}" = xyes; then
2470 CXXFLAGS_FOR_TARGET="-g -O2"
2472 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2473 case " $CXXFLAGS " in
2475 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2477 case " $CXXFLAGS " in
2478 *" -g "* | *" -g3 "*) ;;
2479 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2483 AC_SUBST(CXXFLAGS_FOR_TARGET)
2485 AC_SUBST(LDFLAGS_FOR_TARGET)
2487 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2488 # the named directory are copied to $(tooldir)/sys-include.
2489 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2490 if test x${is_cross_compiler} = xno ; then
2491 echo 1>&2 '***' --with-headers is only supported when cross compiling
2494 if test x"${with_headers}" != xyes ; then
2495 x=${gcc_cv_tool_prefix}
2496 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2500 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2501 # the name directories are copied to $(tooldir)/lib. Multiple directories
2503 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2504 if test x${is_cross_compiler} = xno ; then
2505 echo 1>&2 '***' --with-libs is only supported when cross compiling
2508 if test x"${with_libs}" != xyes ; then
2509 # Copy the libraries in reverse order, so that files in the first named
2510 # library override files in subsequent libraries.
2511 x=${gcc_cv_tool_prefix}
2512 for l in ${with_libs}; do
2513 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2518 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2520 # This is done by determining whether or not the appropriate directory
2521 # is available, and by checking whether or not specific configurations
2522 # have requested that this magic not happen.
2524 # The command line options always override the explicit settings in
2525 # configure.ac, and the settings in configure.ac override this magic.
2527 # If the default for a toolchain is to use GNU as and ld, and you don't
2528 # want to do that, then you should use the --without-gnu-as and
2529 # --without-gnu-ld options for the configure script. Similarly, if
2530 # the default is to use the included zlib and you don't want to do that,
2531 # you should use the --with-system-zlib option for the configure script.
2533 if test x${use_gnu_as} = x &&
2534 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2536 extra_host_args="$extra_host_args --with-gnu-as"
2539 if test x${use_gnu_ld} = x &&
2540 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2542 extra_host_args="$extra_host_args --with-gnu-ld"
2545 if test x${use_included_zlib} = x &&
2546 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2549 with_system_zlib=yes
2550 extra_host_args="$extra_host_args --with-system-zlib"
2553 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2554 # can detect this case.
2556 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2558 extra_host_args="$extra_host_args --with-newlib"
2561 # Handle ${copy_dirs}
2562 set fnord ${copy_dirs}
2564 while test $# != 0 ; do
2565 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2568 echo Copying $1 to $2
2570 # Use the install script to create the directory and all required
2571 # parent directories.
2572 if test -d $2 ; then
2576 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2579 # Copy the directory, assuming we have tar.
2580 # FIXME: Should we use B in the second tar? Not all systems support it.
2581 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2583 # It is the responsibility of the user to correctly adjust all
2584 # symlinks. If somebody can figure out how to handle them correctly
2585 # here, feel free to add the code.
2592 # Determine a target-dependent exec_prefix that the installed
2593 # gcc will search in. Keep this list sorted by triplet, with
2594 # the *-*-osname triplets last.
2597 i[[34567]]86-pc-msdosdjgpp*)
2598 md_exec_prefix=/dev/env/DJDIR/bin
2603 md_exec_prefix=/usr/ccs/bin
2607 extra_arflags_for_target=
2608 extra_nmflags_for_target=
2609 extra_ranlibflags_for_target=
2610 target_makefile_frag=/dev/null
2613 target_makefile_frag="config/mt-spu"
2615 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2616 target_makefile_frag="config/mt-sde"
2618 mipsisa*-*-elfoabi*)
2619 target_makefile_frag="config/mt-mips-elfoabi"
2621 mips*-*-*linux* | mips*-*-gnu*)
2622 target_makefile_frag="config/mt-mips-gnu"
2625 target_makefile_frag="config/mt-nios2-elf"
2628 target_makefile_frag="config/mt-android"
2630 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2631 target_makefile_frag="config/mt-gnu"
2633 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2634 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2635 # commands to handle both 32-bit and 64-bit objects. These flags are
2636 # harmless if we're using GNU nm or ar.
2637 extra_arflags_for_target=" -X32_64"
2638 extra_nmflags_for_target=" -B -X32_64"
2642 alphaieee_frag=/dev/null
2645 # This just makes sure to use the -mieee option to build target libs.
2646 # This should probably be set individually by each library.
2647 alphaieee_frag="config/mt-alphaieee"
2651 # If --enable-target-optspace always use -Os instead of -O2 to build
2652 # the target libraries, similarly if it is not specified, use -Os
2653 # on selected platforms.
2654 ospace_frag=/dev/null
2655 case "${enable_target_optspace}:${target}" in
2657 ospace_frag="config/mt-ospace"
2660 ospace_frag="config/mt-d30v"
2662 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2663 ospace_frag="config/mt-ospace"
2668 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2672 # Some systems (e.g., one of the i386-aix systems the gas testers are
2673 # using) don't handle "\$" correctly, so don't use it here.
2674 tooldir='${exec_prefix}'/${target_noncanonical}
2675 build_tooldir=${tooldir}
2677 # Create a .gdbinit file which runs the one in srcdir
2678 # and tells GDB to look there for source files.
2680 if test -r ${srcdir}/.gdbinit ; then
2683 *) cat > ./.gdbinit <<EOF
2687 source ${srcdir}/.gdbinit
2693 # Make sure that the compiler is able to generate an executable. If it
2694 # can't, we are probably in trouble. We don't care whether we can run the
2695 # executable--we might be using a cross compiler--we only care whether it
2696 # can be created. At this point the main configure script has set CC.
2698 echo "int main () { return 0; }" > conftest.c
2699 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2700 if test $? = 0 ; then
2701 if test -s conftest || test -s conftest.exe ; then
2707 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2708 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2715 # Decide which environment variable is used to find dynamic libraries.
2717 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2718 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2719 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2720 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2723 # On systems where the dynamic library environment variable is PATH,
2724 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2725 # built executables to PATH.
2726 if test "$RPATH_ENVVAR" = PATH; then
2727 GCC_SHLIB_SUBDIR=/shlib
2732 # Adjust the toplevel makefile according to whether bootstrap was selected.
2733 case $enable_bootstrap in
2735 bootstrap_suffix=bootstrap
2736 BUILD_CONFIG=bootstrap-debug
2739 bootstrap_suffix=no-bootstrap
2744 AC_MSG_CHECKING(for default BUILD_CONFIG)
2746 AC_ARG_WITH([build-config],
2747 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2748 [use config/NAME.mk build configuration])],
2749 [case $with_build_config in
2750 yes) with_build_config= ;;
2751 no) with_build_config= BUILD_CONFIG= ;;
2754 if test "x${with_build_config}" != x; then
2755 BUILD_CONFIG=$with_build_config
2757 case $BUILD_CONFIG in
2759 if echo "int f (void) { return 0; }" > conftest.c &&
2760 ${CC} -c conftest.c &&
2761 mv conftest.o conftest.o.g0 &&
2762 ${CC} -c -g conftest.c &&
2763 mv conftest.o conftest.o.g &&
2764 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2769 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2773 AC_MSG_RESULT($BUILD_CONFIG)
2774 AC_SUBST(BUILD_CONFIG)
2776 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2777 AC_MSG_CHECKING([for --enable-vtable-verify])
2778 AC_ARG_ENABLE(vtable-verify,
2779 [AS_HELP_STRING([--enable-vtable-verify],
2780 [Enable vtable verification feature])],
2781 [case "$enableval" in
2782 yes) enable_vtable_verify=yes ;;
2783 no) enable_vtable_verify=no ;;
2784 *) enable_vtable_verify=no;;
2786 [enable_vtable_verify=no])
2787 AC_MSG_RESULT($enable_vtable_verify)
2789 # Record target_configdirs and the configure arguments for target and
2790 # build configuration in Makefile.
2791 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2792 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2793 bootstrap_fixincludes=no
2795 # If we are building libgomp, bootstrap it.
2796 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2797 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2800 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2801 # or bootstrap-ubsan, bootstrap it.
2802 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2803 case "$BUILD_CONFIG" in
2804 *bootstrap-asan* | *bootstrap-ubsan* )
2805 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2806 bootstrap_fixincludes=yes
2811 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2812 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2813 test "$enable_vtable_verify" != no; then
2814 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2817 # Determine whether gdb needs tk/tcl or not.
2818 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2819 # and in that case we want gdb to be built without tk. Ugh!
2820 # In fact I believe gdb is the *only* package directly dependent on tk,
2821 # so we should be able to put the 'maybe's in unconditionally and
2822 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2823 # 100% sure that that's safe though.
2825 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2826 case "$enable_gdbtk" in
2830 GDB_TK="${gdb_tk}" ;;
2832 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2833 # distro. Eventually someone will fix this and move Insight, nee
2834 # gdbtk to a separate directory.
2835 if test -d ${srcdir}/gdb/gdbtk ; then
2842 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2843 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2845 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
2846 # else does, only include them if one of these is built. The Makefile
2847 # provides the ordering, so it's enough here to add to the list.
2848 case " ${configdirs} " in
2850 configdirs="${configdirs} gnulib gdbsupport"
2853 configdirs="${configdirs} gnulib gdbsupport"
2856 configdirs="${configdirs} gnulib"
2860 # Strip out unwanted targets.
2862 # While at that, we remove Makefiles if we were started for recursive
2863 # configuration, so that the top-level Makefile reconfigures them,
2864 # like we used to do when configure itself was recursive.
2866 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2867 # but now we're fixing up the Makefile ourselves with the additional
2868 # commands passed to AC_CONFIG_FILES. Use separate variables
2869 # extrasub-{build,host,target} not because there is any reason to split
2870 # the substitutions up that way, but only to remain below the limit of
2871 # 99 commands in a script, for HP-UX sed.
2873 # Do not nest @if/@endif or @unless/@endunless pairs, because
2874 # configure will not warn you at all.
2876 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2877 yes:yes:*\ gold\ *:*,c++,*) ;;
2878 yes:yes:*\ gold\ *:*)
2879 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2884 for module in ${build_configdirs} ; do
2885 if test -z "${no_recursion}" \
2886 && test -f ${build_subdir}/${module}/Makefile; then
2887 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2888 rm -f ${build_subdir}/${module}/Makefile
2890 extrasub_build="$extrasub_build
2891 /^@if build-$module\$/d
2892 /^@endif build-$module\$/d
2893 /^@unless build-$module\$/,/^@endunless build-$module\$/d
2894 /^@if build-$module-$bootstrap_suffix\$/d
2895 /^@endif build-$module-$bootstrap_suffix\$/d
2896 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
2899 for module in ${configdirs} ; do
2900 if test -z "${no_recursion}"; then
2901 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2902 if test -f ${file}; then
2903 echo 1>&2 "*** removing ${file} to force reconfigure"
2908 case ${module},${bootstrap_fixincludes} in
2909 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2910 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2912 extrasub_host="$extrasub_host
2914 /^@endif $module\$/d
2915 /^@unless $module\$/,/^@endunless $module\$/d
2916 /^@if $module-$host_bootstrap_suffix\$/d
2917 /^@endif $module-$host_bootstrap_suffix\$/d
2918 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
2921 for module in ${target_configdirs} ; do
2922 if test -z "${no_recursion}" \
2923 && test -f ${target_subdir}/${module}/Makefile; then
2924 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2925 rm -f ${target_subdir}/${module}/Makefile
2928 # We only bootstrap target libraries listed in bootstrap_target_libs.
2929 case $bootstrap_target_libs in
2930 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2931 *) target_bootstrap_suffix=no-bootstrap ;;
2934 extrasub_target="$extrasub_target
2935 /^@if target-$module\$/d
2936 /^@endif target-$module\$/d
2937 /^@unless target-$module\$/,/^@endunless target-$module\$/d
2938 /^@if target-$module-$target_bootstrap_suffix\$/d
2939 /^@endif target-$module-$target_bootstrap_suffix\$/d
2940 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
2943 # Do the final fixup along with target modules.
2944 extrasub_target="$extrasub_target
2949 if test "$enable_pgo_build" != "no"; then
2950 extrasub_build="$extrasub_build
2952 /^@endif pgo-build\$/d"
2955 # Create the serialization dependencies. This uses a temporary file.
2957 AC_ARG_ENABLE([serial-configure],
2958 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2959 [force sequential configuration of
2960 sub-packages for the host, target or build
2961 machine, or all sub-packages])])
2963 case ${enable_serial_configure} in
2965 enable_serial_build_configure=yes
2966 enable_serial_host_configure=yes
2967 enable_serial_target_configure=yes
2971 # These force 'configure's to be done one at a time, to avoid problems
2972 # with contention over a shared config.cache.
2974 echo '# serdep.tmp' > serdep.tmp
2976 test "x${enable_serial_build_configure}" = xyes &&
2977 for item in ${build_configdirs} ; do
2980 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2985 test "x${enable_serial_host_configure}" = xyes &&
2986 for item in ${configdirs} ; do
2989 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2994 test "x${enable_serial_target_configure}" = xyes &&
2995 for item in ${target_configdirs} ; do
2998 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
3002 serialization_dependencies=serdep.tmp
3003 AC_SUBST_FILE(serialization_dependencies)
3005 # Base args. Strip norecursion, cache-file, srcdir, host, build,
3006 # target, nonopt, and variable assignments. These are the ones we
3007 # might not want to pass down to subconfigures. The exception being
3008 # --cache-file=/dev/null, which is used to turn off the use of cache
3009 # files altogether, and which should be passed on to subconfigures.
3010 # Also strip program-prefix, program-suffix, and program-transform-name,
3011 # so that we can pass down a consistent program-transform-name.
3016 eval "set -- $ac_configure_args"
3019 if test X"$skip_next" = X"yes"; then
3023 if test X"$keep_next" = X"yes"; then
3026 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3028 baseargs="$baseargs '$ac_arg'"
3029 tbaseargs="$tbaseargs '$ac_arg'"
3034 # Handle separated arguments. Based on the logic generated by
3037 *=* | --config-cache | -C | -disable-* | --disable-* \
3038 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3039 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3040 | -with-* | --with-* | -without-* | --without-* | --x)
3054 --with-* | --without-*)
3055 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3059 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3062 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3071 mpc | mpfr | gmp | isl)
3072 # If we're processing --with-$lib, --with-$lib-include or
3073 # --with-$lib-lib, for one of the libs above, and target is
3074 # different from host, don't pass the current argument to any
3075 # target library's configure.
3076 if test x$is_cross_compiler = xyes; then
3085 --cache-file=/dev/null | \
3086 -cache-file=/dev/null )
3087 # Handled here to avoid the test to skip args below.
3088 baseargs="$baseargs '$ac_arg'"
3089 tbaseargs="$tbaseargs '$ac_arg'"
3090 # Assert: $separate_arg should always be no.
3091 keep_next=$separate_arg
3107 -program-prefix* | \
3108 -program-suffix* | \
3109 -program-transform-name* )
3110 skip_next=$separate_arg
3114 # An option. Add it.
3117 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3119 baseargs="$baseargs '$ac_arg'"
3120 if test X"$skip_targ" = Xno; then
3121 tbaseargs="$tbaseargs '$ac_arg'"
3123 keep_next=$separate_arg
3126 # Either a variable assignment, or a nonopt (triplet). Don't
3127 # pass it down; let the Makefile handle this.
3132 # Remove the initial space we just introduced and, as these will be
3133 # expanded by make, quote '$'.
3134 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3136 # Add in --program-transform-name, after --program-prefix and
3137 # --program-suffix have been applied to it. Autoconf has already
3138 # doubled dollar signs and backslashes in program_transform_name; we want
3139 # the backslashes un-doubled, and then the entire thing wrapped in single
3140 # quotes, because this will be expanded first by make and then by the shell.
3141 # Also, because we want to override the logic in subdir configure scripts to
3142 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3143 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3144 ${program_transform_name}
3146 gcc_transform_name=`cat conftestsed.out`
3147 rm -f conftestsed.out
3148 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3149 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3150 if test "$silent" = yes; then
3151 baseargs="$baseargs --silent"
3152 tbaseargs="$tbaseargs --silent"
3155 baseargs="$baseargs --disable-option-checking"
3156 tbaseargs="$tbaseargs --disable-option-checking"
3158 if test "$enable_year2038" = no; then
3159 baseargs="$baseargs --disable-year2038"
3160 tbaseargs="$tbaseargs --disable-year2038"
3163 # Record and document user additions to sub configure arguments.
3164 AC_ARG_VAR([build_configargs],
3165 [additional configure arguments for build directories])
3166 AC_ARG_VAR([host_configargs],
3167 [additional configure arguments for host directories])
3168 AC_ARG_VAR([target_configargs],
3169 [additional configure arguments for target directories])
3171 # For the build-side libraries, we just need to pretend we're native,
3172 # and not use the same cache file. Multilibs are neither needed nor
3173 # desired. We can't even use the same cache file for all build-side
3174 # libraries, as they're compiled differently; some with C, some with
3175 # C++ or with different feature-enabling options.
3176 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3178 # For host modules, accept cache file option, or specification as blank.
3179 case "${cache_file}" in
3181 cache_file_option="" ;;
3182 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3183 cache_file_option="--cache-file=${cache_file}" ;;
3185 cache_file_option="--cache-file=../${cache_file}" ;;
3188 # Host dirs don't like to share a cache file either, horribly enough.
3189 # This seems to be due to autoconf 2.5x stupidity.
3190 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3192 target_configargs="$target_configargs ${tbaseargs}"
3194 # Passing a --with-cross-host argument lets the target libraries know
3195 # whether they are being built with a cross-compiler or being built
3196 # native. However, it would be better to use other mechanisms to make the
3197 # sorts of decisions they want to make on this basis. Please consider
3198 # this option to be deprecated. FIXME.
3199 if test x${is_cross_compiler} = xyes ; then
3200 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3203 # Special user-friendly check for native x86_64-linux build, if
3204 # multilib is not explicitly enabled.
3205 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3206 x86_64-*linux*:yes:$build:$build:)
3207 # Make sure we have a development environment that handles 32-bit
3209 echo "int main () { return 0; }" > conftest.c
3210 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3211 if test $? = 0 ; then
3212 if test -s conftest || test -s conftest.exe ; then
3217 if test x${dev64} != xyes ; then
3218 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.])
3223 # Default to --enable-multilib.
3224 if test x${enable_multilib} = x ; then
3225 target_configargs="--enable-multilib ${target_configargs}"
3228 # Pass --with-newlib if appropriate. Note that target_configdirs has
3229 # changed from the earlier setting of with_newlib.
3230 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3231 target_configargs="--with-newlib ${target_configargs}"
3234 # Different target subdirs use different values of certain variables
3235 # (notably CXX). Worse, multilibs use *lots* of different values.
3236 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3237 # it doesn't automatically accept command-line overrides of them.
3238 # This means it's not safe for target subdirs to share a cache file,
3239 # which is disgusting, but there you have it. Hopefully this can be
3240 # fixed in future. It's still worthwhile to use a cache file for each
3241 # directory. I think.
3243 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3244 # We need to pass --target, as newer autoconf's requires consistency
3245 # for target_alias and gcc doesn't manage it consistently.
3246 target_configargs="--cache-file=./config.cache ${target_configargs}"
3249 case " $target_configdirs " in
3251 case " $target_configargs " in
3252 *" --with-newlib "*)
3255 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3259 # If we're not building GCC, don't discard standard headers.
3260 if test -d ${srcdir}/gcc; then
3261 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3263 if test "${build}" != "${host}"; then
3264 # On Canadian crosses, CC_FOR_TARGET will have already been set
3265 # by `configure', so we won't have an opportunity to add -Bgcc/
3266 # to it. This is right: we don't want to search that directory
3267 # for binaries, but we want the header files in there, so add
3269 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3271 # Someone might think of using the pre-installed headers on
3272 # Canadian crosses, in case the installed compiler is not fully
3273 # compatible with the compiler being built. In this case, it
3274 # would be better to flag an error than risking having
3275 # incompatible object files being constructed. We can't
3276 # guarantee that an error will be flagged, but let's hope the
3277 # compiler will do it, when presented with incompatible header
3282 case "${target}-${is_cross_compiler}" in
3283 i[[3456789]]86-*-linux*-no)
3284 # Here host == target, so we don't need to build gcc,
3285 # so we don't want to discard standard headers.
3286 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3289 # If we're building newlib, use its generic headers last, but search
3290 # for any libc-related directories first (so make it the last -B
3292 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3294 # If we're building libgloss, find the startup file, simulator library
3295 # and linker script.
3296 case " $target_configdirs " in
3298 # Look for startup file, simulator library and maybe linker script.
3299 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3300 # Look for libnosys.a in case the target needs it.
3301 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3302 # Most targets have the linker script in the source directory.
3303 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3314 x86_64-*mingw* | *-w64-mingw*)
3315 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3316 # however, use a symlink named 'mingw' in ${prefix} .
3317 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3320 # MinGW can't be handled as Cygwin above since it does not use newlib.
3321 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3325 # Allow the user to override the flags for
3326 # our build compiler if desired.
3327 if test x"${build}" = x"${host}" ; then
3328 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3329 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3330 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3333 # On Canadian crosses, we'll be searching the right directories for
3334 # the previously-installed cross compiler, so don't bother to add
3335 # flags for directories within the install tree of the compiler
3336 # being built; programs in there won't even run.
3337 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3338 # Search for pre-installed headers if nothing else fits.
3339 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3342 if test "x${use_gnu_ld}" = x &&
3343 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3344 # Arrange for us to find uninstalled linker scripts.
3345 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3348 # Search for other target-specific linker scripts and such.
3351 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3355 # Makefile fragments.
3356 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3358 eval fragval=\$$frag
3359 if test $fragval != /dev/null; then
3360 eval $frag=${srcdir}/$fragval
3363 AC_SUBST_FILE(host_makefile_frag)
3364 AC_SUBST_FILE(target_makefile_frag)
3365 AC_SUBST_FILE(alphaieee_frag)
3366 AC_SUBST_FILE(ospace_frag)
3368 # Miscellanea: directories, flags, etc.
3369 AC_SUBST(RPATH_ENVVAR)
3370 AC_SUBST(GCC_SHLIB_SUBDIR)
3372 AC_SUBST(build_tooldir)
3373 AC_SUBST(CONFIGURE_GDB_TK)
3375 AC_SUBST(INSTALL_GDB_TK)
3377 # Build module lists & subconfigure args.
3378 AC_SUBST(build_configargs)
3379 AC_SUBST(build_configdirs)
3381 # Host module lists & subconfigure args.
3382 AC_SUBST(host_configargs)
3383 AC_SUBST(configdirs)
3384 AC_SUBST(target_configdirs)
3386 # Target module lists & subconfigure args.
3387 AC_SUBST(target_configargs)
3391 AC_SUBST(AR_FOR_BUILD)
3392 AC_SUBST(AS_FOR_BUILD)
3393 AC_SUBST(CC_FOR_BUILD)
3394 AC_SUBST(CFLAGS_FOR_BUILD)
3395 AC_SUBST(CXXFLAGS_FOR_BUILD)
3396 AC_SUBST(CXX_FOR_BUILD)
3397 AC_SUBST(DLLTOOL_FOR_BUILD)
3398 AC_SUBST(GFORTRAN_FOR_BUILD)
3399 AC_SUBST(GOC_FOR_BUILD)
3400 AC_SUBST(LDFLAGS_FOR_BUILD)
3401 AC_SUBST(LD_FOR_BUILD)
3402 AC_SUBST(NM_FOR_BUILD)
3403 AC_SUBST(RANLIB_FOR_BUILD)
3404 AC_SUBST(WINDMC_FOR_BUILD)
3405 AC_SUBST(WINDRES_FOR_BUILD)
3407 # Generate default definitions for YACC, M4, LEX and other programs that run
3408 # on the build machine. These are used if the Makefile can't locate these
3409 # programs in objdir.
3410 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3412 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3413 case " $build_configdirs " in
3414 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3417 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3418 case " $build_configdirs " in
3419 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3422 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3423 case " $build_configdirs " in
3424 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3427 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3428 case " $build_configdirs " in
3429 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3430 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3433 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3434 case " $build_configdirs " in
3435 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3438 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3439 case " $build_configdirs " in
3440 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3443 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3444 # higher, else we use the "missing" dummy.
3445 if ${MAKEINFO} --version \
3446 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3449 MAKEINFO="$MISSING makeinfo"
3455 # FIXME: expect and dejagnu may become build tools?
3457 AC_CHECK_PROGS(EXPECT, expect, expect)
3458 case " $configdirs " in
3460 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3464 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3465 case " $configdirs " in
3467 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3473 NCN_STRICT_CHECK_TOOLS(AR, ar)
3474 NCN_STRICT_CHECK_TOOLS(AS, as)
3475 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3476 NCN_STRICT_CHECK_TOOLS(LD, ld)
3477 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3478 NCN_STRICT_CHECK_TOOLS(NM, nm)
3479 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3480 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3481 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3482 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3483 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3484 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3485 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3490 AC_SUBST(PKG_CONFIG_PATH)
3492 GCC_PLUGIN_OPTION(PLUGIN_OPTION)
3494 RANLIB_PLUGIN_OPTION=
3495 if test -n "$PLUGIN_OPTION"; then
3496 if $AR --help 2>&1 | grep -q "\--plugin"; then
3497 AR_PLUGIN_OPTION="$PLUGIN_OPTION"
3499 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
3500 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
3503 if test "$enable_pgo_build" != "no"; then
3504 AC_MSG_ERROR([AR with --plugin and rc is required for LTO build])
3507 AC_SUBST(AR_PLUGIN_OPTION)
3508 AC_SUBST(RANLIB_PLUGIN_OPTION)
3511 AC_ARG_WITH([build-time-tools],
3512 [AS_HELP_STRING([--with-build-time-tools=PATH],
3513 [use given path to find target tools during the build])],
3514 [case x"$withval" in
3517 with_build_time_tools=
3518 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3521 [with_build_time_tools=])
3523 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3524 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3525 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3526 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3527 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3529 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3530 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3531 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3532 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3533 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3534 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3535 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3536 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3537 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3538 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3539 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3540 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3541 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3543 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3545 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3546 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3547 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3548 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3549 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3550 [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],
3552 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3553 [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],
3555 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3556 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3557 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3558 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3559 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3560 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3561 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3562 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3563 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3564 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3565 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3566 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3567 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3568 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3569 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3570 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3572 AC_SUBST(FLAGS_FOR_TARGET)
3573 AC_SUBST(RAW_CXX_FOR_TARGET)
3575 # Certain tools may need extra flags.
3576 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3577 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3578 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3580 # When building target libraries, except in a Canadian cross, we use
3581 # the same toolchain as the compiler we just built.
3582 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3583 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3584 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3585 if test $host = $build; then
3586 case " $configdirs " in
3588 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3589 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3590 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3595 AC_SUBST(COMPILER_AS_FOR_TARGET)
3596 AC_SUBST(COMPILER_LD_FOR_TARGET)
3597 AC_SUBST(COMPILER_NM_FOR_TARGET)
3599 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3600 AC_ARG_ENABLE(maintainer-mode,
3601 [AS_HELP_STRING([--enable-maintainer-mode],
3602 [enable make rules and dependencies not useful
3603 (and sometimes confusing) to the casual installer])],
3604 USE_MAINTAINER_MODE=$enableval,
3605 USE_MAINTAINER_MODE=no)
3606 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3607 AC_SUBST(MAINTAINER_MODE_TRUE)
3608 AC_SUBST(MAINTAINER_MODE_FALSE)
3609 if test "$USE_MAINTAINER_MODE" = yes; then
3610 MAINTAINER_MODE_TRUE=
3611 MAINTAINER_MODE_FALSE='#'
3613 MAINTAINER_MODE_TRUE='#'
3614 MAINTAINER_MODE_FALSE=
3616 MAINT=$MAINTAINER_MODE_TRUE
3619 # ---------------------
3620 # GCC bootstrap support
3621 # ---------------------
3623 # Stage specific cflags for build.
3628 yes) stage1_cflags="-g -Wa,-J" ;;
3629 *) stage1_cflags="-g -J" ;;
3633 AC_SUBST(stage1_cflags)
3635 # Enable --enable-checking in stage1 of the compiler.
3636 AC_ARG_ENABLE(stage1-checking,
3637 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3638 [choose additional checking for stage1 of the compiler])],
3639 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3640 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3641 # For --disable-checking or implicit --enable-checking=release, avoid
3642 # setting --enable-checking=gc in the default stage1 checking for LTO
3643 # bootstraps. See PR62077.
3644 case $BUILD_CONFIG in
3646 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3648 stage1_checking=--enable-checking=yes,types;;
3650 if test "x$enable_checking" = x && \
3651 test -d ${srcdir}/gcc && \
3652 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3653 stage1_checking=--enable-checking=yes,types,extra
3656 stage1_checking=--enable-checking=$enable_checking,types
3658 AC_SUBST(stage1_checking)
3660 # Enable -Werror in bootstrap stage2 and later.
3661 AC_ARG_ENABLE(werror,
3662 [AS_HELP_STRING([--enable-werror],
3663 [enable -Werror in bootstrap stage2 and later])],
3665 case ${enable_werror} in
3666 yes) stage2_werror_flag="--enable-werror-always" ;;
3667 *) stage2_werror_flag="" ;;
3671 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3672 case $BUILD_CONFIG in
3674 stage2_werror_flag="--enable-werror-always" ;;
3676 stage2_werror_flag="--enable-werror-always" ;;
3681 AC_SUBST(stage2_werror_flag)
3683 # Specify what files to not compare during bootstrap.
3685 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3687 hppa*64*-*-hpux*) ;;
3688 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
3689 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3691 AC_SUBST(compare_exclusions)
3693 AC_CONFIG_FILES([Makefile],
3694 [sed "$extrasub_build" Makefile |
3695 sed "$extrasub_host" |
3696 sed "$extrasub_target" > mf$$
3697 mv -f mf$$ Makefile],
3698 [extrasub_build="$extrasub_build"
3699 extrasub_host="$extrasub_host"
3700 extrasub_target="$extrasub_target"])