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 Free Software Foundation, Inc.
5 # This file is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; see the file COPYING3. If not see
17 # <http://www.gnu.org/licenses/>.
19 ##############################################################################
20 ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
22 m4_include(config/acx.m4)
23 m4_include(config/override.m4)
24 m4_include(config/proginstall.m4)
25 m4_include(config/elf.m4)
26 m4_include(config/ax_cxx_compile_stdcxx.m4)
27 m4_include([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 libcody 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 c++tools"
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 \
156 target-libstdc++-v3 \
157 target-libsanitizer \
169 # these tools are built using the target libraries, and are intended to
170 # run only in the target environment
172 # note: any program that *uses* libraries that are in the "target_libraries"
173 # list belongs in this list.
175 target_tools="target-rda"
177 ################################################################################
179 ## All tools belong in one of the four categories, and are assigned above
180 ## We assign ${configdirs} this way to remove all embedded newlines. This
181 ## is important because configure will choke if they ever get through.
182 ## ${configdirs} is directories we build using the host tools.
183 ## ${target_configdirs} is directories we build using the target tools.
184 configdirs=`echo ${host_libs} ${host_tools}`
185 target_configdirs=`echo ${target_libraries} ${target_tools}`
186 build_configdirs=`echo ${build_libs} ${build_tools}`
188 m4_divert_text([PARSE_ARGS],
191 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
192 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
193 m4_popdef([AS_MESSAGE_LOG_FD])dnl
196 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
199 ################################################################################
201 srcname="gnu development package"
203 # This gets set non-empty for some net releases of packages.
206 # Define is_cross_compiler to save on calls to 'test'.
208 if test x"${host}" = x"${target}" ; then
211 is_cross_compiler=yes
214 # Find the build and target subdir names.
216 # Be sure to cover against remnants of an in-tree build.
217 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
218 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
219 Use a pristine source tree when building in a separate tree])
222 # Skipdirs are removed silently.
224 # Noconfigdirs are removed loudly.
228 # Make sure we don't let GNU ld be added if we didn't want it.
229 if test x$with_gnu_ld = xno ; then
231 noconfigdirs="$noconfigdirs ld gold"
235 # Make sure we don't let GNU as be added if we didn't want it.
236 if test x$with_gnu_as = xno ; then
238 noconfigdirs="$noconfigdirs gas"
242 AC_ARG_WITH(system-zlib,
243 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
244 # Make sure we don't let ZLIB be added if we didn't want it.
245 if test x$with_system_zlib = xyes ; then
247 noconfigdirs="$noconfigdirs zlib"
250 # some tools are so dependent upon X11 that if we're not building with X,
251 # it's not even worth trying to configure, much less build, that tool.
254 yes | "") ;; # the default value for this tree is that X11 is available
256 skipdirs="${skipdirs} tk itcl libgui"
257 # We won't be able to build gdbtk without X.
260 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
263 # Some are only suitable for cross toolchains.
264 # Remove these if host=target.
265 cross_only="target-libgloss target-newlib target-opcodes"
267 case $is_cross_compiler in
268 no) skipdirs="${skipdirs} ${cross_only}" ;;
271 # If both --with-headers and --with-libs are specified, default to
273 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
274 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
275 if test x"${with_newlib}" = x ; then
280 # Recognize --with-newlib/--without-newlib.
281 case ${with_newlib} in
282 no) skipdirs="${skipdirs} target-newlib" ;;
283 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
286 AC_ARG_ENABLE(as-accelerator-for,
287 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
288 [build as offload target compiler.
289 Specify offload host triple by ARG])])
291 AC_ARG_ENABLE(offload-targets,
292 [AS_HELP_STRING([--enable-offload-targets=LIST],
293 [enable offloading to devices from comma-separated LIST of
294 TARGET[=DIR]. Use optional path to find offload target compiler
297 if test x"$enable_offload_targets" = x; then
298 AC_MSG_ERROR([no offload targets specified])
300 ], [enable_offload_targets=])
302 AC_ARG_ENABLE(offload-defaulted,
303 [AS_HELP_STRING([--enable-offload-defaulted]
304 [If enabled, configured but not installed offload compilers and
305 libgomp plugins are silently ignored. Useful for distribution
306 compilers where those are in separate optional packages.])],
307 [enable_offload_defaulted=$enableval],
308 [enable_offload_defaulted=])
310 # Handle --enable-gold, --enable-ld.
311 # --disable-gold [--enable-ld]
312 # Build only ld. Default option.
313 # --enable-gold [--enable-ld]
314 # Build both gold and ld. Install gold as "ld.gold", install ld
315 # as "ld.bfd" and "ld".
316 # --enable-gold=default [--enable-ld]
317 # Build both gold and ld. Install gold as "ld.gold" and "ld",
318 # install ld as "ld.bfd".
319 # --enable-gold[=default] --disable-ld
320 # Build only gold, which is then installed as both "ld.gold" and "ld".
321 # --enable-gold --enable-ld=default
322 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
324 # In other words, ld is default
325 # --enable-gold=default --enable-ld=default
330 [AS_HELP_STRING([[--enable-gold[=ARG]]],
331 [build gold @<:@ARG={default,yes,no}@:>@])],
332 ENABLE_GOLD=$enableval,
334 case "${ENABLE_GOLD}" in
336 # Check for ELF target.
339 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
340 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
341 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
342 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
344 *-*-linux*aout* | *-*-linux*oldld*)
352 if test "$is_elf" = "yes"; then
353 # Check for target supported by gold.
355 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
356 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
357 configdirs="$configdirs gold"
358 if test x${ENABLE_GOLD} = xdefault; then
369 AC_MSG_ERROR([invalid --enable-gold argument])
374 [AS_HELP_STRING([[--enable-ld[=ARG]]],
375 [build ld @<:@ARG={default,yes,no}@:>@])],
376 ENABLE_LD=$enableval,
379 case "${ENABLE_LD}" in
381 if test x${default_ld} != x; then
382 AC_MSG_ERROR([either gold or ld can be the default ld])
388 if test x${ENABLE_GOLD} != xyes; then
389 AC_MSG_WARN([neither ld nor gold are enabled])
391 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
394 AC_MSG_ERROR([invalid --enable-ld argument])
399 # Decide the default method for compressing debug sections.
400 # Provide a configure time option to override our default.
401 AC_ARG_ENABLE(compressed_debug_sections,
402 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
403 [Enable compressed debug sections for gas, gold or ld by
406 if test x"$enable_compressed_debug_sections" = xyes; then
407 AC_MSG_ERROR([no program with compressed debug sections specified])
409 ], [enable_compressed_debug_sections=])
411 # Configure extra directories which are host specific
415 configdirs="$configdirs libtermcap" ;;
418 # A target can indicate whether a language isn't supported for some reason.
419 # Only spaces may be used in this macro; not newlines or tabs.
420 unsupported_languages=
422 # Remove more programs from consideration, based on the host or
423 # target this usually means that a port of the program doesn't
427 i[[3456789]]86-*-msdosdjgpp*)
428 noconfigdirs="$noconfigdirs tcl tk itcl"
433 AC_ARG_ENABLE(libquadmath,
434 AS_HELP_STRING([--disable-libquadmath],
435 [do not build libquadmath directory]),
436 ENABLE_LIBQUADMATH=$enableval,
437 ENABLE_LIBQUADMATH=yes)
438 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
439 noconfigdirs="$noconfigdirs target-libquadmath"
443 AC_ARG_ENABLE(libquadmath-support,
444 AS_HELP_STRING([--disable-libquadmath-support],
445 [disable libquadmath support for Fortran]),
446 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
447 ENABLE_LIBQUADMATH_SUPPORT=yes)
448 enable_libquadmath_support=
449 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
450 enable_libquadmath_support=no
454 AC_ARG_ENABLE(libada,
455 [AS_HELP_STRING([--enable-libada], [build libada directory])],
456 ENABLE_LIBADA=$enableval,
458 if test "${ENABLE_LIBADA}" != "yes" ; then
459 noconfigdirs="$noconfigdirs gnattools"
462 AC_ARG_ENABLE(libssp,
463 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
464 ENABLE_LIBSSP=$enableval,
467 AC_ARG_ENABLE(libstdcxx,
468 AS_HELP_STRING([--disable-libstdcxx],
469 [do not build libstdc++-v3 directory]),
470 ENABLE_LIBSTDCXX=$enableval,
471 ENABLE_LIBSTDCXX=default)
472 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
473 noconfigdirs="$noconfigdirs target-libstdc++-v3"
476 # If this is accelerator compiler and its target is intelmic we enable
477 # target liboffloadmic by default. If this is compiler with offloading
478 # for intelmic we enable host liboffloadmic by default. Otherwise
479 # liboffloadmic is disabled by default.
480 AC_ARG_ENABLE([liboffloadmic],
481 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
482 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
483 [case "$enableval" in
485 enable_liboffloadmic=$enableval ;;
487 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
489 [if test x"$enable_as_accelerator_for" != x; then
491 *-intelmic-* | *-intelmicemul-*)
492 enable_liboffloadmic=target
493 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
496 enable_liboffloadmic=no
500 case "${enable_offload_targets}" in
501 *-intelmic-* | *-intelmicemul-*)
502 enable_liboffloadmic=host
503 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
506 enable_liboffloadmic=no
510 AC_SUBST(extra_liboffloadmic_configure_flags)
512 # Enable libgomp by default on hosted POSIX systems, and a few others.
513 if test x$enable_libgomp = x ; then
515 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
517 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
519 *-*-solaris2* | *-*-hpux11*)
521 *-*-darwin* | *-*-aix*)
523 nvptx*-*-* | amdgcn*-*-*)
526 noconfigdirs="$noconfigdirs target-libgomp"
531 # Disable libatomic on unsupported systems.
532 if test -d ${srcdir}/libatomic; then
533 if test x$enable_libatomic = x; then
534 AC_MSG_CHECKING([for libatomic support])
535 if (srcdir=${srcdir}/libatomic; \
536 . ${srcdir}/configure.tgt; \
537 test -n "$UNSUPPORTED")
540 noconfigdirs="$noconfigdirs target-libatomic"
547 # Disable liboffloadmic on unsupported systems.
548 if test -d ${srcdir}/liboffloadmic; then
549 if test x$enable_liboffloadmic != xno; then
550 AC_MSG_CHECKING([for liboffloadmic support])
551 if (srcdir=${srcdir}/liboffloadmic; \
552 . ${srcdir}/configure.tgt; \
553 test -n "$UNSUPPORTED")
556 noconfigdirs="$noconfigdirs target-liboffloadmic"
563 # Disable libitm on unsupported systems.
564 if test -d ${srcdir}/libitm; then
565 if test x$enable_libitm = x; then
566 AC_MSG_CHECKING([for libitm support])
567 if (srcdir=${srcdir}/libitm; \
568 . ${srcdir}/configure.tgt; \
569 test -n "$UNSUPPORTED")
572 noconfigdirs="$noconfigdirs target-libitm"
579 # Disable libsanitizer on unsupported systems.
580 if test -d ${srcdir}/libsanitizer; then
581 if test x$enable_libsanitizer = x; then
582 AC_MSG_CHECKING([for libsanitizer support])
583 if (srcdir=${srcdir}/libsanitizer; \
584 . ${srcdir}/configure.tgt; \
585 test -n "$UNSUPPORTED")
588 noconfigdirs="$noconfigdirs target-libsanitizer"
595 # Disable libvtv on unsupported systems.
596 if test -d ${srcdir}/libvtv; then
597 if test x$enable_libvtv = x; then
598 AC_MSG_CHECKING([for libvtv support])
599 if (srcdir=${srcdir}/libvtv; \
600 . ${srcdir}/configure.tgt; \
601 test "$VTV_SUPPORTED" != "yes")
604 noconfigdirs="$noconfigdirs target-libvtv"
611 # Disable libquadmath for some systems.
614 noconfigdirs="$noconfigdirs target-libquadmath"
616 # libquadmath is unused on AIX and libquadmath build process use of
617 # LD_LIBRARY_PATH can break AIX bootstrap.
618 powerpc-*-aix* | rs6000-*-aix*)
619 noconfigdirs="$noconfigdirs target-libquadmath"
623 # Disable libssp for some systems.
626 # No hosted I/O support.
627 noconfigdirs="$noconfigdirs target-libssp"
630 noconfigdirs="$noconfigdirs target-libssp"
632 powerpc-*-aix* | rs6000-*-aix*)
633 noconfigdirs="$noconfigdirs target-libssp"
636 # No hosted I/O support.
637 noconfigdirs="$noconfigdirs target-libssp"
640 # libssp uses a misaligned load to trigger a fault, but the RL78
641 # doesn't fault for those - instead, it gives a build-time error
642 # for explicit misaligned loads.
643 noconfigdirs="$noconfigdirs target-libssp"
646 # No hosted I/O support.
647 noconfigdirs="$noconfigdirs target-libssp"
651 # Disable libstdc++-v3 for some systems.
652 # Allow user to override this if they pass --enable-libstdc++-v3
653 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
656 # VxWorks uses the Dinkumware C++ library.
657 noconfigdirs="$noconfigdirs target-libstdc++-v3"
660 # Not ported/fails to build when using newlib.
661 noconfigdirs="$noconfigdirs target-libstdc++-v3"
664 # the C++ libraries don't build on top of CE's C libraries
665 noconfigdirs="$noconfigdirs target-libstdc++-v3"
668 noconfigdirs="$noconfigdirs target-libstdc++-v3"
671 noconfigdirs="$noconfigdirs target-libstdc++-v3"
674 noconfigdirs="$noconfigdirs target-libstdc++-v3"
679 # Disable C++ on systems where it is known to not work.
680 # For testing, you can override this with --enable-languages=c++.
681 case ,${enable_languages}, in
687 unsupported_languages="$unsupported_languages c++"
693 # Disable Objc on systems where it is known to not work.
694 # For testing, you can override this with --enable-languages=objc.
695 case ,${enable_languages}, in
701 unsupported_languages="$unsupported_languages objc"
707 # Disable D on systems where it is known to not work.
708 # For testing, you can override this with --enable-languages=d.
709 case ,${enable_languages}, in
715 unsupported_languages="$unsupported_languages d"
721 # Disable libphobos on unsupported systems.
722 # For testing, you can override this with --enable-libphobos.
723 if test -d ${srcdir}/libphobos; then
724 if test x$enable_libphobos = x; then
725 AC_MSG_CHECKING([for libphobos support])
726 if (srcdir=${srcdir}/libphobos; \
727 . ${srcdir}/configure.tgt; \
728 test "$LIBPHOBOS_SUPPORTED" != "yes")
731 noconfigdirs="$noconfigdirs target-libphobos"
738 # Disable Fortran for some systems.
741 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
742 unsupported_languages="$unsupported_languages fortran"
745 unsupported_languages="$unsupported_languages fortran"
749 # Disable libffi for some systems.
753 i[[3456789]]86-*-darwin*)
755 x86_64-*-darwin[[912]]*)
758 noconfigdirs="$noconfigdirs target-libffi"
761 noconfigdirs="$noconfigdirs target-libffi"
764 noconfigdirs="$noconfigdirs target-libffi"
767 noconfigdirs="$noconfigdirs target-libffi"
770 noconfigdirs="$noconfigdirs target-libffi"
773 noconfigdirs="$noconfigdirs target-libffi"
776 noconfigdirs="$noconfigdirs target-libffi"
779 noconfigdirs="$noconfigdirs target-libffi"
782 noconfigdirs="$noconfigdirs target-libffi"
785 noconfigdirs="$noconfigdirs target-libffi"
788 noconfigdirs="$noconfigdirs target-libffi"
791 noconfigdirs="$noconfigdirs target-libffi"
794 noconfigdirs="$noconfigdirs target-libffi"
796 cris-*-* | crisv32-*-*)
800 *) # See PR46792 regarding target-libffi.
801 noconfigdirs="$noconfigdirs target-libffi";;
805 noconfigdirs="$noconfigdirs target-libffi"
810 noconfigdirs="$noconfigdirs target-libffi"
813 noconfigdirs="$noconfigdirs target-libffi"
815 i[[3456789]]86-w64-mingw*)
816 noconfigdirs="$noconfigdirs target-libffi"
818 i[[3456789]]86-*-mingw*)
819 noconfigdirs="$noconfigdirs target-libffi"
822 noconfigdirs="$noconfigdirs target-libffi"
825 noconfigdirs="$noconfigdirs target-libffi"
832 noconfigdirs="$noconfigdirs target-libffi"
835 noconfigdirs="$noconfigdirs target-libffi"
839 # Disable the go frontend on systems where it is known to not work. Please keep
840 # this in sync with contrib/config-list.mk.
842 *-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
843 unsupported_languages="$unsupported_languages go"
847 # Only allow gdbserver on some systems.
848 if test -d ${srcdir}/gdbserver; then
849 if test x$enable_gdbserver = x; then
850 AC_MSG_CHECKING([for gdbserver support])
851 if (srcdir=${srcdir}/gdbserver; \
852 . ${srcdir}/configure.srv; \
853 test -n "$UNSUPPORTED")
856 noconfigdirs="$noconfigdirs gdbserver"
863 # Disable libgo for some systems where it is known to not work.
864 # For testing, you can easily override this with --enable-libgo.
865 if test x$enable_libgo = x; then
869 noconfigdirs="$noconfigdirs target-libgo"
871 *-*-cygwin* | *-*-mingw*)
872 noconfigdirs="$noconfigdirs target-libgo"
875 noconfigdirs="$noconfigdirs target-libgo"
880 # Default libgloss CPU subdirectory.
881 libgloss_dir="$target_cpu"
884 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
893 cris-*-* | crisv32-*-*)
902 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
922 # Disable newlib and libgloss for various target OSes.
925 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
927 i[[3456789]]86-*-linux*)
928 # This section makes it possible to build newlib natively on linux.
929 # If we are using a cross compiler then don't configure newlib.
930 if test x${is_cross_compiler} != xno ; then
931 noconfigdirs="$noconfigdirs target-newlib"
933 noconfigdirs="$noconfigdirs target-libgloss"
934 # If we are not using a cross compiler, do configure newlib.
935 # Note however, that newlib will only be configured in this situation
936 # if the --with-newlib option has been given, because otherwise
937 # 'target-newlib' will appear in skipdirs.
939 i[[3456789]]86-*-rdos*)
940 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
942 sh*-*-pe|mips*-*-pe|arm-wince-pe)
943 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
946 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
949 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
952 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
955 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
958 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
961 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
964 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
966 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
967 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
970 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
973 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
976 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
979 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
982 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
985 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
988 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
996 noconfigdirs="$noconfigdirs ld gas gdb gprof"
997 noconfigdirs="$noconfigdirs sim target-rda"
1002 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1003 noconfigdirs="$noconfigdirs sim target-rda"
1006 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1007 noconfigdirs="$noconfigdirs sim target-rda"
1009 i[[3456789]]86-*-darwin*)
1010 noconfigdirs="$noconfigdirs ld gprof"
1011 noconfigdirs="$noconfigdirs sim target-rda"
1013 x86_64-*-darwin[[912]]*)
1014 noconfigdirs="$noconfigdirs ld gas gprof"
1015 noconfigdirs="$noconfigdirs sim target-rda"
1018 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1019 noconfigdirs="$noconfigdirs sim target-rda"
1024 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
1025 && ! test -d ${srcdir}/gmp \
1026 && test -f /usr/local/include/gmp.h; then
1031 # Remove unsupported stuff on all kaOS configurations.
1032 noconfigdirs="$noconfigdirs target-libgloss"
1039 noconfigdirs="$noconfigdirs target-libgloss"
1042 noconfigdirs="$noconfigdirs target-libgloss"
1044 # The tpf target doesn't support gdb yet.
1046 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
1049 noconfigdirs="$noconfigdirs target-rda"
1054 # ld works, but does not support shared libraries.
1055 # gas doesn't generate exception information.
1056 noconfigdirs="$noconfigdirs gas ld"
1059 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1062 # newlib is not 64 bit ready
1063 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1066 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1068 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1069 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1072 noconfigdirs="$noconfigdirs sim"
1075 noconfigdirs="$noconfigdirs target-libgloss"
1078 noconfigdirs="$noconfigdirs ld target-libgloss"
1081 if test x${with_avrlibc} != xno; then
1082 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1085 c4x-*-* | tic4x-*-*)
1086 noconfigdirs="$noconfigdirs target-libgloss"
1089 noconfigdirs="$noconfigdirs target-libgloss gdb"
1092 noconfigdirs="$noconfigdirs target-libgloss"
1095 noconfigdirs="$noconfigdirs gdb"
1098 noconfigdirs="$noconfigdirs gdb"
1101 noconfigdirs="$noconfigdirs target-rda gprof"
1104 noconfigdirs="$noconfigdirs"
1107 noconfigdirs="$noconfigdirs target-libgloss"
1110 noconfigdirs="$noconfigdirs target-libgloss"
1112 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1115 noconfigdirs="$noconfigdirs gdb"
1118 noconfigdirs="$noconfigdirs gdb ld"
1126 hppa*-*-openbsd* | \
1132 noconfigdirs="$noconfigdirs ld"
1135 noconfigdirs="$noconfigdirs gdb"
1138 # No gdb support yet.
1139 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1142 # No ld support yet.
1143 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1146 # No ld support yet.
1147 noconfigdirs="$noconfigdirs libgui itcl ld"
1149 i[[3456789]]86-w64-mingw*)
1151 i[[3456789]]86-*-mingw*)
1152 target_configdirs="$target_configdirs target-winsup"
1155 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1156 noconfigdirs="$noconfigdirs target-libgloss"
1157 # always build newlib if winsup directory is present.
1158 if test -d "$srcdir/winsup/cygwin"; then
1159 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1160 elif test -d "$srcdir/newlib"; then
1161 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1164 i[[3456789]]86-*-pe)
1165 noconfigdirs="$noconfigdirs target-libgloss"
1167 i[[3456789]]86-*-sco3.2v5*)
1168 # The linker does not yet know about weak symbols in COFF,
1169 # and is not configured to handle mixed ELF and COFF.
1170 noconfigdirs="$noconfigdirs ld target-libgloss"
1172 i[[3456789]]86-*-sco*)
1173 noconfigdirs="$noconfigdirs gprof target-libgloss"
1175 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1176 noconfigdirs="$noconfigdirs target-libgloss"
1178 i[[3456789]]86-*-sysv4*)
1179 noconfigdirs="$noconfigdirs target-libgloss"
1181 i[[3456789]]86-*-beos*)
1182 noconfigdirs="$noconfigdirs gdb"
1184 i[[3456789]]86-*-rdos*)
1185 noconfigdirs="$noconfigdirs gdb"
1188 noconfigdirs="$noconfigdirs gdb"
1191 noconfigdirs="$noconfigdirs sim"
1194 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1195 noconfigdirs="$noconfigdirs $target_libraries"
1198 noconfigdirs="$noconfigdirs gdb gprof"
1201 # copied from rs6000-*-* entry
1202 noconfigdirs="$noconfigdirs gprof"
1204 powerpc*-*-winnt* | powerpc*-*-pe*)
1205 target_configdirs="$target_configdirs target-winsup"
1206 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1207 # always build newlib.
1208 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1210 # This is temporary until we can link against shared libraries
1211 powerpcle-*-solaris*)
1212 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1215 noconfigdirs="$noconfigdirs gdb"
1218 noconfigdirs="$noconfigdirs gprof"
1221 noconfigdirs="$noconfigdirs gprof"
1224 noconfigdirs="$noconfigdirs gprof"
1227 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1230 noconfigdirs="$noconfigdirs gprof"
1232 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1233 if test x$with_newlib = xyes; then
1234 noconfigdirs="$noconfigdirs gprof"
1238 noconfigdirs="$noconfigdirs gprof target-libgloss"
1241 noconfigdirs="$noconfigdirs gprof target-libgloss"
1244 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1248 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1249 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1250 noconfigdirs="$noconfigdirs ld gas gprof"
1253 noconfigdirs="$noconfigdirs gprof"
1256 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1263 noconfigdirs="$noconfigdirs target-libgloss" ;;
1267 if test x${is_cross_compiler} = xno ; then
1272 noconfigdirs="$noconfigdirs sim"
1274 tilepro*-*-* | tilegx*-*-*)
1275 noconfigdirs="$noconfigdirs sim"
1278 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1281 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1284 noconfigdirs="$noconfigdirs ld"
1288 # If we aren't building newlib, then don't build libgloss, since libgloss
1289 # depends upon some newlib header files.
1290 case "${noconfigdirs}" in
1291 *target-libgloss*) ;;
1292 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1295 # Work in distributions that contain no compiler tools, like Autoconf.
1296 host_makefile_frag=/dev/null
1297 if test -d ${srcdir}/config ; then
1299 i[[3456789]]86-*-msdosdjgpp*)
1300 host_makefile_frag="config/mh-djgpp"
1303 ACX_CHECK_CYGWIN_CAT_WORKS
1304 host_makefile_frag="config/mh-cygwin"
1307 host_makefile_frag="config/mh-mingw"
1310 host_makefile_frag="config/mh-alpha-linux"
1313 host_makefile_frag="config/mh-pa-hpux10"
1316 host_makefile_frag="config/mh-pa"
1319 host_makefile_frag="config/mh-pa"
1321 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
1322 host_makefile_frag="config/mh-darwin"
1325 host_makefile_frag="config/mh-ppc-aix"
1328 host_makefile_frag="config/mh-ppc-aix"
1333 if test "${build}" != "${host}" ; then
1334 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1335 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1336 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1337 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
1338 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1339 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
1340 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1341 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1342 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1343 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1344 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1345 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1346 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1347 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1348 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1350 AR_FOR_BUILD="\$(AR)"
1351 AS_FOR_BUILD="\$(AS)"
1352 CC_FOR_BUILD="\$(CC)"
1353 CXX_FOR_BUILD="\$(CXX)"
1354 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
1355 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1356 GOC_FOR_BUILD="\$(GOC)"
1357 GDC_FOR_BUILD="\$(GDC)"
1358 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1359 LD_FOR_BUILD="\$(LD)"
1360 NM_FOR_BUILD="\$(NM)"
1361 RANLIB_FOR_BUILD="\$(RANLIB)"
1362 WINDRES_FOR_BUILD="\$(WINDRES)"
1363 WINDMC_FOR_BUILD="\$(WINDMC)"
1369 # We must set the default linker to the linker used by gcc for the correct
1370 # operation of libtool. If LD is not defined and we are using gcc, try to
1371 # set the LD default to the ld used by gcc.
1372 if test -z "$LD"; then
1373 if test "$GCC" = yes; then
1376 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1378 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1380 case $gcc_prog_ld in
1381 # Accept absolute paths.
1382 [[\\/]* | [A-Za-z]:[\\/]*)]
1383 LD="$gcc_prog_ld" ;;
1388 # Check whether -static-libstdc++ -static-libgcc is supported.
1390 if test "$GCC" = yes; then
1391 saved_LDFLAGS="$LDFLAGS"
1393 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1394 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1396 AC_LINK_IFELSE([AC_LANG_SOURCE([
1397 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1398 #error -static-libstdc++ not implemented
1401 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1402 [AC_MSG_RESULT([no])])
1405 LDFLAGS="$saved_LDFLAGS"
1410 ACX_PROG_CMP_IGNORE_INITIAL
1412 AC_ARG_ENABLE([bootstrap],
1413 [AS_HELP_STRING([--enable-bootstrap],
1414 [enable bootstrapping @<:@yes if native build@:>@])],,
1415 enable_bootstrap=default)
1417 # Issue errors and warnings for invalid/strange bootstrap combinations.
1418 if test -r $srcdir/gcc/configure; then
1424 case "$have_compiler:$host:$target:$enable_bootstrap" in
1427 # Default behavior. Enable bootstrap if we have a compiler
1428 # and we are in a native configuration.
1429 yes:$build:$build:default)
1430 enable_bootstrap=yes ;;
1433 enable_bootstrap=no ;;
1435 # We have a compiler and we are in a native configuration, bootstrap is ok
1436 yes:$build:$build:yes)
1439 # Other configurations, but we have a compiler. Assume the user knows
1442 AC_MSG_WARN([trying to bootstrap a cross compiler])
1445 # No compiler: if they passed --enable-bootstrap explicitly, fail
1447 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1449 # Fail if wrong command line
1451 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1455 # When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
1456 # C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1457 # require C++11 (or higher).
1458 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1459 CXX="$CXX -std=c++11"
1460 elif test "$have_compiler" = yes; then
1461 AX_CXX_COMPILE_STDCXX(11)
1463 if test "${build}" != "${host}"; then
1464 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1468 AC_ARG_ENABLE([pgo-build],
1469 [AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1470 [enable the PGO build])],
1471 [enable_pgo_build=$enableval],
1472 [enable_pgo_build=no])
1474 # Issue errors and warnings for invalid/strange PGO build combinations.
1475 case "$have_compiler:$host:$target:$enable_pgo_build" in
1478 # Allow the PGO build only if we aren't building a compiler and
1479 # we are in a native configuration.
1480 no:$build:$build:yes | no:$build:$build:lto) ;;
1482 # Disallow the PGO bootstrap if we are building a compiler.
1483 yes:*:*:yes | yes:*:*:lto)
1484 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1487 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1491 if test "$enable_pgo_build" != "no"; then
1492 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1493 old_CFLAGS="$CFLAGS"
1494 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1495 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1496 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1497 [PGO_BUILD_GEN_CFLAGS=])
1498 CFLAGS="$old_CFLAGS"
1499 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1500 AC_MSG_RESULT([yes])
1501 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1504 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1507 if test "$enable_pgo_build" = "lto"; then
1508 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1509 old_CFLAGS="$CFLAGS"
1510 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1511 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1512 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1513 [PGO_BUILD_LTO_CFLAGS=])
1514 CFLAGS="$old_CFLAGS"
1515 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1516 AC_MSG_RESULT([yes])
1519 AC_MSG_WARN([LTO is disabled for the PGO build])
1523 AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1524 AC_SUBST(PGO_BUILD_USE_CFLAGS)
1525 AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1527 # Used for setting $lt_cv_objdir
1530 # Check for GMP, MPFR and MPC
1531 gmplibs="-lmpc -lmpfr -lgmp"
1535 # Specify a location for mpc
1536 # check for this first so it ends up on the link line before mpfr.
1538 [AS_HELP_STRING([--with-mpc=PATH],
1539 [specify prefix directory for installed MPC package.
1540 Equivalent to --with-mpc-include=PATH/include
1541 plus --with-mpc-lib=PATH/lib])])
1542 AC_ARG_WITH(mpc-include,
1543 [AS_HELP_STRING([--with-mpc-include=PATH],
1544 [specify directory for installed MPC include files])])
1545 AC_ARG_WITH(mpc-lib,
1546 [AS_HELP_STRING([--with-mpc-lib=PATH],
1547 [specify directory for the installed MPC library])])
1549 if test "x$with_mpc" != x; then
1550 gmplibs="-L$with_mpc/lib $gmplibs"
1551 gmpinc="-I$with_mpc/include $gmpinc"
1553 if test "x$with_mpc_include" != x; then
1554 gmpinc="-I$with_mpc_include $gmpinc"
1556 if test "x$with_mpc_lib" != x; then
1557 gmplibs="-L$with_mpc_lib $gmplibs"
1559 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1560 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1561 gmpinc='-I$$s/mpc/src '"$gmpinc"
1562 # Do not test the mpc version. Assume that it is sufficient, since
1563 # it is in the source tree, and the library has not been built yet
1564 # but it would be included on the link line in the version check below
1565 # hence making the test fail.
1569 # Specify a location for mpfr
1570 # check for this first so it ends up on the link line before gmp.
1571 AC_ARG_WITH(mpfr-dir,
1572 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1573 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1574 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1577 [AS_HELP_STRING([--with-mpfr=PATH],
1578 [specify prefix directory for installed MPFR package.
1579 Equivalent to --with-mpfr-include=PATH/include
1580 plus --with-mpfr-lib=PATH/lib])])
1581 AC_ARG_WITH(mpfr-include,
1582 [AS_HELP_STRING([--with-mpfr-include=PATH],
1583 [specify directory for installed MPFR include files])])
1584 AC_ARG_WITH(mpfr-lib,
1585 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1586 [specify directory for the installed MPFR library])])
1588 if test "x$with_mpfr" != x; then
1589 gmplibs="-L$with_mpfr/lib $gmplibs"
1590 gmpinc="-I$with_mpfr/include $gmpinc"
1592 if test "x$with_mpfr_include" != x; then
1593 gmpinc="-I$with_mpfr_include $gmpinc"
1595 if test "x$with_mpfr_lib" != x; then
1596 gmplibs="-L$with_mpfr_lib $gmplibs"
1598 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1599 # MPFR v3.1.0 moved the sources into a src sub-directory.
1600 if ! test -d ${srcdir}/mpfr/src; then
1602 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1604 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1605 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1606 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1607 # Do not test the mpfr version. Assume that it is sufficient, since
1608 # it is in the source tree, and the library has not been built yet
1609 # but it would be included on the link line in the version check below
1610 # hence making the test fail.
1614 # Specify a location for gmp
1615 AC_ARG_WITH(gmp-dir,
1616 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1617 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1618 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1621 [AS_HELP_STRING([--with-gmp=PATH],
1622 [specify prefix directory for the installed GMP package.
1623 Equivalent to --with-gmp-include=PATH/include
1624 plus --with-gmp-lib=PATH/lib])])
1625 AC_ARG_WITH(gmp-include,
1626 [AS_HELP_STRING([--with-gmp-include=PATH],
1627 [specify directory for installed GMP include files])])
1628 AC_ARG_WITH(gmp-lib,
1629 [AS_HELP_STRING([--with-gmp-lib=PATH],
1630 [specify directory for the installed GMP library])])
1633 if test "x$with_gmp" != x; then
1634 gmplibs="-L$with_gmp/lib $gmplibs"
1635 gmpinc="-I$with_gmp/include $gmpinc"
1637 if test "x$with_gmp_include" != x; then
1638 gmpinc="-I$with_gmp_include $gmpinc"
1640 if test "x$with_gmp_lib" != x; then
1641 gmplibs="-L$with_gmp_lib $gmplibs"
1643 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1644 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1645 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1646 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1647 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1648 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1649 # Do not test the gmp version. Assume that it is sufficient, since
1650 # it is in the source tree, and the library has not been built yet
1651 # but it would be included on the link line in the version check below
1652 # hence making the test fail.
1656 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1658 saved_CFLAGS="$CFLAGS"
1659 CFLAGS="$CFLAGS $gmpinc"
1660 # Check for the recommended and required versions of GMP.
1661 AC_MSG_CHECKING([for the correct version of gmp.h])
1662 AC_TRY_COMPILE([#include "gmp.h"],[
1663 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1664 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1665 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1668 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1669 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1670 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1671 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1674 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1675 [AC_MSG_RESULT([no]); have_gmp=no])
1677 # If we have GMP, check the MPFR version.
1678 if test x"$have_gmp" = xyes; then
1679 # Check for the recommended and required versions of MPFR.
1680 AC_MSG_CHECKING([for the correct version of mpfr.h])
1681 AC_TRY_COMPILE([#include <gmp.h>
1682 #include <mpfr.h>],[
1683 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
1686 ], [AC_TRY_COMPILE([#include <gmp.h>
1687 #include <mpfr.h>],[
1688 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
1691 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1692 [AC_MSG_RESULT([no]); have_gmp=no])
1695 # Check for the MPC header version.
1696 if test x"$have_gmp" = xyes ; then
1697 # Check for the recommended and required versions of MPC.
1698 AC_MSG_CHECKING([for the correct version of mpc.h])
1699 AC_TRY_COMPILE([#include <mpc.h>],[
1700 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1703 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1704 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1707 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1708 [AC_MSG_RESULT([no]); have_gmp=no])
1711 # Now check the MPFR library.
1712 if test x"$have_gmp" = xyes; then
1714 LIBS="$LIBS $gmplibs"
1715 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1716 AC_TRY_LINK([#include <mpc.h>],[
1723 mpfr_atan2 (n, n, x, MPFR_RNDN);
1724 mpfr_erfc (n, x, MPFR_RNDN);
1725 mpfr_subnormalize (x, t, MPFR_RNDN);
1729 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1730 mpc_cosh (c, c, MPC_RNDNN);
1731 mpc_pow (c, c, c, MPC_RNDNN);
1732 mpc_acosh (c, c, MPC_RNDNN);
1734 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1738 CFLAGS="$saved_CFLAGS"
1740 # The library versions listed in the error message below should match
1741 # the HARD-minimums enforced above.
1742 if test x$have_gmp != xyes; then
1743 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
1744 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1745 their locations. Source code for these libraries can be found at
1746 their respective hosting sites as well as at
1747 https://gcc.gnu.org/pub/gcc/infrastructure/. See also
1748 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1749 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1750 make sure that you have installed both the libraries and the header
1751 files. They may be located in separate packages.])
1755 # Flags needed for both GMP, MPFR and/or MPC.
1758 AC_SUBST(extra_mpfr_configure_flags)
1759 AC_SUBST(extra_mpc_gmp_configure_flags)
1760 AC_SUBST(extra_mpc_mpfr_configure_flags)
1761 AC_SUBST(extra_isl_gmp_configure_flags)
1763 # Libraries to use for stage1 or when not bootstrapping.
1764 AC_ARG_WITH(stage1-libs,
1765 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1766 [if test "$withval" = "no" -o "$withval" = "yes"; then
1769 stage1_libs=$withval
1772 AC_SUBST(stage1_libs)
1774 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1775 # default is yes if gcc is being built; no otherwise. The reason for
1776 # this default is that gdb is sometimes linked against GNU Source
1777 # Highlight, which is a shared library that uses C++ exceptions. In
1778 # this case, -static-libstdc++ will cause crashes.
1779 AC_ARG_WITH(static-standard-libraries,
1780 [AS_HELP_STRING([--with-static-standard-libraries],
1781 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1782 [], [with_static_standard_libraries=auto])
1783 if test "$with_static_standard_libraries" = auto; then
1784 with_static_standard_libraries=$have_compiler
1787 # Linker flags to use for stage1 or when not bootstrapping.
1788 AC_ARG_WITH(stage1-ldflags,
1789 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1790 [if test "$withval" = "no" -o "$withval" = "yes"; then
1793 stage1_ldflags=$withval
1796 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1797 # if supported. But if the user explicitly specified the libraries to use,
1798 # trust that they are doing what they want.
1799 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1800 -a "$have_static_libs" = yes; then
1801 stage1_ldflags="-static-libstdc++ -static-libgcc"
1803 AC_SUBST(stage1_ldflags)
1805 # Libraries to use for stage2 and later builds.
1806 AC_ARG_WITH(boot-libs,
1807 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1808 [if test "$withval" = "no" -o "$withval" = "yes"; then
1811 poststage1_libs=$withval
1814 AC_SUBST(poststage1_libs)
1816 # Linker flags to use for stage2 and later builds.
1817 AC_ARG_WITH(boot-ldflags,
1818 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1819 [linker flags for stage2 and later])],
1820 [if test "$withval" = "no" -o "$withval" = "yes"; then
1823 poststage1_ldflags=$withval
1825 [poststage1_ldflags=
1826 # In stages 2 and 3, default to linking libstdc++ and libgcc
1827 # statically. But if the user explicitly specified the libraries to
1828 # use, trust that they are doing what they want.
1829 if test "$poststage1_libs" = ""; then
1830 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1832 AC_SUBST(poststage1_ldflags)
1834 # GCC GRAPHITE dependency isl.
1835 # Basic setup is inlined here, actual checks are in config/isl.m4
1840 [Specify prefix directory for the installed isl package.
1841 Equivalent to --with-isl-include=PATH/include
1842 plus --with-isl-lib=PATH/lib])])
1844 # Treat --without-isl as a request to disable
1845 # GRAPHITE support and skip all following checks.
1846 if test "x$with_isl" != "xno"; then
1848 dnl Provide configure switches and initialize islinc & isllibs
1849 dnl with user input.
1851 dnl The versions of isl that work for Graphite
1853 dnl Only execute fail-action, if isl has been requested.
1855 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1858 # If the isl check failed, disable builds of in-tree variant of isl
1859 if test "x$with_isl" = xno ||
1860 test "x$gcc_cv_isl" = xno; then
1861 noconfigdirs="$noconfigdirs isl"
1868 # Check for LTO support.
1870 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1871 enable_lto=$enableval,
1872 enable_lto=yes; default_enable_lto=yes)
1874 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1875 build_lto_plugin=yes
1876 ],[if test x"$default_enable_lto" = x"yes" ; then
1878 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1879 # On other non-ELF platforms, LTO has yet to be validated.
1883 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1884 # It would also be nice to check the binutils support, but we don't
1885 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1886 # warn during gcc/ subconfigure; unless you're bootstrapping with
1887 # -flto it won't be needed until after installation anyway.
1889 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1890 *) if test x"$enable_lto" = x"yes"; then
1891 AC_MSG_ERROR([LTO support is not enabled for this target.])
1896 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1897 # Build it unless LTO was explicitly disabled.
1899 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1904 AC_ARG_ENABLE(linker-plugin-configure-flags,
1905 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1906 [additional flags for configuring linker plugins @<:@none@:>@])],
1907 extra_linker_plugin_configure_flags=$enableval,
1908 extra_linker_plugin_configure_flags=)
1909 AC_SUBST(extra_linker_plugin_configure_flags)
1910 AC_ARG_ENABLE(linker-plugin-flags,
1911 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1912 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1913 extra_linker_plugin_flags=$enableval,
1914 extra_linker_plugin_flags=)
1915 AC_SUBST(extra_linker_plugin_flags)
1917 # Enable --enable-host-shared.
1918 # Checked early to determine whether jit is an 'all' language
1919 AC_ARG_ENABLE(host-shared,
1920 [AS_HELP_STRING([--enable-host-shared],
1921 [build host code as shared libraries])],
1922 [host_shared=$enableval
1924 x86_64-*-darwin* | aarch64-*-darwin*)
1925 if test x$host_shared != xyes ; then
1926 # PIC is the default, and actually cannot be switched off.
1927 echo configure.ac: warning: PIC code is required for the configured target, host-shared setting ignored. 1>&2
1933 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
1934 *) host_shared=no ;;
1936 AC_SUBST(host_shared)
1938 # By default, C and C++ are the only stage 1 languages.
1939 stage1_languages=,c,
1941 # Target libraries that we bootstrap.
1942 bootstrap_target_libs=,target-libgcc,
1944 # Figure out what language subdirectories are present.
1945 # Look if the user specified --enable-languages="..."; if not, use
1946 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1948 # NB: embedded tabs in this IF block -- do not untabify
1949 if test -d ${srcdir}/gcc; then
1950 if test x"${enable_languages+set}" != xset; then
1951 if test x"${LANGUAGES+set}" = xset; then
1952 enable_languages="${LANGUAGES}"
1953 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1955 enable_languages=default
1958 if test x"${enable_languages}" = x ||
1959 test x"${enable_languages}" = xyes;
1961 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1965 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1967 # 'f95' is the old name for the 'fortran' language. We issue a warning
1968 # and make the substitution.
1969 case ,${enable_languages}, in
1971 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1972 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1976 # If bootstrapping, C++ must be enabled.
1977 case ",$enable_languages,:$enable_bootstrap" in
1980 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1981 enable_languages="${enable_languages},c++"
1983 AC_MSG_ERROR([bootstrapping requires c++ sources])
1988 # First scan to see if an enabled language requires some other language.
1989 # We assume that a given config-lang.in will list all the language
1990 # front ends it requires, even if some are required indirectly.
1991 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1992 case ${lang_frag} in
1994 # The odd quoting in the next line works around
1995 # an apparent bug in bash 1.12 on linux.
1996 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1998 # From the config-lang.in, get $language, $lang_requires, and
1999 # $lang_requires_boot_languages.
2002 lang_requires_boot_languages=
2003 # set srcdir during sourcing lang_frag to the gcc dir.
2004 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
2005 # polutes this shell
2006 saved_srcdir=${srcdir}
2007 srcdir=${srcdir}/gcc . ${lang_frag}
2008 srcdir=${saved_srcdir}
2009 for other in ${lang_requires} ${lang_requires_boot_languages}; do
2010 case ,${enable_languages}, in
2015 echo " \`$other' language required by \`$language'; enabling" 1>&2
2016 enable_languages="${enable_languages},${other}"
2020 for other in ${lang_requires_boot_languages} ; do
2021 if test "$other" != "c"; then
2022 case ,${enable_stage1_languages}, in
2027 case ,${enable_languages}, in
2029 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
2030 enable_stage1_languages="$enable_stage1_languages,${other}"
2041 new_enable_languages=,c,
2043 # If LTO is enabled, add the LTO front end.
2044 if test "$enable_lto" = "yes" ; then
2045 case ,${enable_languages}, in
2047 *) enable_languages="${enable_languages},lto" ;;
2049 if test "${build_lto_plugin}" = "yes" ; then
2050 configdirs="$configdirs lto-plugin"
2054 # If we're building an offloading compiler, add the LTO front end.
2055 if test x"$enable_as_accelerator_for" != x ; then
2056 case ,${enable_languages}, in
2058 *) enable_languages="${enable_languages},lto" ;;
2062 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
2063 potential_languages=,c,
2065 enabled_target_libs=
2066 disabled_target_libs=
2068 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2069 case ${lang_frag} in
2071 # The odd quoting in the next line works around
2072 # an apparent bug in bash 1.12 on linux.
2073 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2075 # From the config-lang.in, get $language, $target_libs,
2076 # $lang_dirs, $boot_language, and $build_by_default
2082 build_by_default=yes
2083 # set srcdir during sourcing. See above about save & restore
2084 saved_srcdir=${srcdir}
2085 srcdir=${srcdir}/gcc . ${lang_frag}
2086 srcdir=${saved_srcdir}
2087 if test x${language} = x; then
2088 echo "${lang_frag} doesn't set \$language." 1>&2
2092 if test "$language" = "c++"; then
2097 # C is always enabled, so no need to add it again
2098 if test "$language" != "c"; then
2099 case ,${enable_languages}, in
2101 # Language was explicitly selected; include it
2105 # All languages are enabled
2109 # 'default' was selected, select it if it is a default language
2110 add_this_lang=${build_by_default}
2115 # Disable languages that need other directories if these aren't available.
2116 for i in $subdir_requires; do
2117 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2118 case ${add_this_lang} in
2120 # Specifically requested language; tell them.
2121 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2124 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2125 add_this_lang=unsupported
2129 add_this_lang=unsupported
2134 # Disable Ada if no preexisting GNAT is available.
2135 case ${add_this_lang}:${language}:${have_gnat} in
2137 # Specifically requested language; tell them.
2138 AC_MSG_ERROR([GNAT is required to build $language])
2141 AC_MSG_WARN([GNAT is required to build $language])
2142 add_this_lang=unsupported
2146 add_this_lang=unsupported
2150 # Disable D if no preexisting GDC is available.
2151 case ${add_this_lang}:${language}:${have_gdc} in
2153 # Specifically requested language; tell them.
2154 AC_MSG_ERROR([GDC is required to build $language])
2157 AC_MSG_WARN([GDC is required to build $language])
2158 add_this_lang=unsupported
2162 add_this_lang=unsupported
2166 # Disable jit if -enable-host-shared not specified
2167 # but not if building for Mingw. All code in Windows
2168 # is position independent code (PIC).
2172 case ${add_this_lang}:${language}:${host_shared} in
2174 # PR jit/64780: explicitly specify --enable-host-shared
2176 Enabling language "jit" requires --enable-host-shared.
2178 --enable-host-shared typically slows the rest of the compiler down by
2179 a few %, so you must explicitly enable it.
2181 If you want to build both the jit and the regular compiler, it is often
2182 best to do this via two separate configure/builds, in separate
2183 directories, to avoid imposing the performance cost of
2184 --enable-host-shared on the regular compiler.])
2187 AC_MSG_WARN([--enable-host-shared required to build $language])
2188 add_this_lang=unsupported
2192 add_this_lang=unsupported
2198 # Disable a language that is unsupported by the target.
2199 case "${add_this_lang}: $unsupported_languages " in
2203 AC_MSG_WARN([${language} not supported for this target])
2204 add_this_lang=unsupported
2208 case $add_this_lang in
2210 # Remove language-dependent dirs.
2211 disabled_target_libs="$disabled_target_libs $target_libs"
2212 noconfigdirs="$noconfigdirs $lang_dirs"
2215 # Remove language-dependent dirs; still show language as supported.
2216 disabled_target_libs="$disabled_target_libs $target_libs"
2217 noconfigdirs="$noconfigdirs $lang_dirs"
2218 potential_languages="${potential_languages}${language},"
2221 new_enable_languages="${new_enable_languages}${language},"
2222 potential_languages="${potential_languages}${language},"
2223 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2224 enabled_target_libs="$enabled_target_libs $target_libs"
2225 case "${boot_language}:,$enable_stage1_languages," in
2226 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2227 # Add to (comma-separated) list of stage 1 languages.
2228 case ",$stage1_languages," in
2229 *,$language,* | ,yes, | ,all,) ;;
2230 *) stage1_languages="${stage1_languages}${language}," ;;
2232 # We need to bootstrap any supporting libraries.
2233 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2242 # Add target libraries which are only needed for disabled languages
2244 if test -n "$disabled_target_libs"; then
2245 for dir in $disabled_target_libs; do
2246 case " $enabled_target_libs " in
2248 *) noconfigdirs="$noconfigdirs $dir" ;;
2253 AC_ARG_ENABLE(stage1-languages,
2254 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2255 [choose additional languages to build during
2256 stage1. Mostly useful for compiler development])],
2257 [case ,${enable_stage1_languages}, in
2259 # Set it to something that will have no effect in the loop below
2260 enable_stage1_languages=c ;;
2262 enable_stage1_languages=`echo $new_enable_languages | \
2263 sed -e "s/^,//" -e "s/,$//" ` ;;
2265 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2266 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2269 # Add "good" languages from enable_stage1_languages to stage1_languages,
2270 # while "bad" languages go in missing_languages. Leave no duplicates.
2271 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2272 case $potential_languages in
2274 case $stage1_languages in
2276 *) stage1_languages="$stage1_languages$i," ;;
2279 case $missing_languages in
2281 *) missing_languages="$missing_languages$i," ;;
2286 # Remove leading/trailing commas that were added for simplicity
2287 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2288 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2289 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2290 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2292 if test "x$missing_languages" != x; then
2294 The following requested languages could not be built: ${missing_languages}
2295 Supported languages are: ${potential_languages}])
2297 if test "x$new_enable_languages" != "x$enable_languages"; then
2298 echo The following languages will be built: ${new_enable_languages}
2299 enable_languages="$new_enable_languages"
2302 AC_SUBST(stage1_languages)
2303 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2306 # Handle --disable-<component> generically.
2307 for dir in $configdirs $build_configdirs $target_configdirs ; do
2308 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2309 varname=`echo $dirname | sed -e s/+/_/g`
2310 if eval test x\${enable_${varname}} "=" xno ; then
2311 noconfigdirs="$noconfigdirs $dir"
2315 # Check for Boehm's garbage collector
2316 AC_ARG_ENABLE(objc-gc,
2317 [AS_HELP_STRING([--enable-objc-gc],
2318 [enable use of Boehm's garbage collector with the
2319 GNU Objective-C runtime])])
2320 AC_ARG_WITH([target-bdw-gc],
2321 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2322 [specify prefix directory for installed bdw-gc package.
2323 Equivalent to --with-target-bdw-gc-include=PATH/include
2324 plus --with-target-bdw-gc-lib=PATH/lib])])
2325 AC_ARG_WITH([target-bdw-gc-include],
2326 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2327 [specify directories for installed bdw-gc include files])])
2328 AC_ARG_WITH([target-bdw-gc-lib],
2329 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2330 [specify directories for installed bdw-gc library])])
2332 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2333 AC_MSG_CHECKING([for bdw garbage collector])
2334 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2335 dnl no bdw-gw options, assume default locations
2336 AC_MSG_RESULT([using bdw-gc in default locations])
2338 dnl bdw-gw options, first error checking, complete checking in libobjc
2339 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2340 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2341 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2342 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2344 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2349 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2350 case ,${enable_languages}, in
2352 # Disable libitm, libsanitizer if we're not building libstdc++
2353 case "${noconfigdirs}" in
2354 *target-libstdc++-v3*)
2355 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2361 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2365 # If gcc/ is not in the source tree then we'll not be building a
2366 # target compiler, assume in that case we don't want to build any
2367 # target libraries or tools.
2369 # This was added primarily for the benefit for binutils-gdb who reuse
2370 # this configure script, but don't always have target tools available.
2371 if test ! -d ${srcdir}/gcc; then
2372 skipdirs="${skipdirs} ${target_configdirs}"
2375 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2376 # $build_configdirs and $target_configdirs.
2377 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2380 for dir in . $skipdirs $noconfigdirs ; do
2381 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2382 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2383 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2384 if test -r $srcdir/$dirname/configure ; then
2385 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2388 notsupp="$notsupp $dir"
2392 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2393 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2394 if test -r $srcdir/$dirname/configure ; then
2395 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2398 notsupp="$notsupp $dir"
2402 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2403 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2404 if test -r $srcdir/$dirname/configure ; then
2405 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2408 notsupp="$notsupp $dir"
2414 # Quietly strip out all directories which aren't configurable in this tree.
2415 # This relies on all configurable subdirectories being autoconfiscated, which
2417 build_configdirs_all="$build_configdirs"
2419 for i in ${build_configdirs_all} ; do
2420 j=`echo $i | sed -e s/build-//g`
2421 if test -f ${srcdir}/$j/configure ; then
2422 build_configdirs="${build_configdirs} $i"
2426 configdirs_all="$configdirs"
2428 for i in ${configdirs_all} ; do
2429 if test -f ${srcdir}/$i/configure ; then
2430 configdirs="${configdirs} $i"
2434 target_configdirs_all="$target_configdirs"
2436 for i in ${target_configdirs_all} ; do
2437 j=`echo $i | sed -e s/target-//g`
2438 if test -f ${srcdir}/$j/configure ; then
2439 target_configdirs="${target_configdirs} $i"
2443 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2444 # so we have to add it after the preceding checks.
2445 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2447 case " $configdirs " in
2449 # If we can build libiberty, we can also build libiberty-linker-plugin.
2450 configdirs="$configdirs libiberty-linker-plugin"
2451 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2452 --with-libiberty=../libiberty-linker-plugin";;
2454 AC_MSG_ERROR([libiberty missing]);;
2458 # Sometimes we have special requirements for the host libiberty.
2459 extra_host_libiberty_configure_flags=
2460 extra_host_zlib_configure_flags=
2461 case " $configdirs " in
2462 *" lto-plugin "* | *" libcc1 "*)
2463 # When these are to be built as shared libraries, the same applies to
2465 extra_host_libiberty_configure_flags=--enable-shared
2468 # When bfd is to be built as a shared library, the same applies to
2470 if test "$enable_shared" = "yes"; then
2471 extra_host_zlib_configure_flags=--enable-host-shared
2475 AC_SUBST(extra_host_libiberty_configure_flags)
2476 AC_SUBST(extra_host_zlib_configure_flags)
2478 # Produce a warning message for the subdirs we can't configure.
2479 # This isn't especially interesting in the Cygnus tree, but in the individual
2480 # FSF releases, it's important to let people know when their machine isn't
2481 # supported by the one or two programs in a package.
2483 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2484 # If $appdirs is non-empty, at least one of those directories must still
2485 # be configured, or we error out. (E.g., if the gas release supports a
2486 # specified target in some subdirs but not the gas subdir, we shouldn't
2487 # pretend that all is well.)
2488 if test -n "$appdirs" ; then
2489 for dir in $appdirs ; do
2490 if test -r $dir/Makefile.in ; then
2491 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2495 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2501 if test -n "$appdirs" ; then
2502 echo "*** This configuration is not supported by this package." 1>&2
2506 # Okay, some application will build, or we don't care to check. Still
2507 # notify of subdirs not getting built.
2508 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2509 echo " ${notsupp}" 1>&2
2510 echo " (Any other directories should still work fine.)" 1>&2
2518 # To find our prefix, in gcc_cv_tool_prefix.
2523 AC_ARG_WITH([build-sysroot],
2524 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2525 [use sysroot as the system root during the build])],
2526 [if test x"$withval" != x ; then
2527 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2529 [SYSROOT_CFLAGS_FOR_TARGET=])
2530 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2532 AC_ARG_WITH([debug-prefix-map],
2533 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2534 [map A to B, C to D ... in debug information])],
2535 [if test x"$withval" != x; then
2536 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2537 for debug_map in $withval; do
2538 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2541 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2542 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2544 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2545 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2546 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2547 # We want to ensure that TARGET libraries (which we know are built with
2548 # gcc) are built with "-O2 -g", so include those options when setting
2549 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2550 if test "x$CFLAGS_FOR_TARGET" = x; then
2551 if test "x${is_cross_compiler}" = xyes; then
2552 CFLAGS_FOR_TARGET="-g -O2"
2554 CFLAGS_FOR_TARGET=$CFLAGS
2557 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2560 *" -g "* | *" -g3 "*) ;;
2561 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2565 AC_SUBST(CFLAGS_FOR_TARGET)
2567 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2568 if test "x${is_cross_compiler}" = xyes; then
2569 CXXFLAGS_FOR_TARGET="-g -O2"
2571 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2572 case " $CXXFLAGS " in
2574 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2576 case " $CXXFLAGS " in
2577 *" -g "* | *" -g3 "*) ;;
2578 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2582 AC_SUBST(CXXFLAGS_FOR_TARGET)
2584 AC_SUBST(LDFLAGS_FOR_TARGET)
2586 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2587 # the named directory are copied to $(tooldir)/sys-include.
2588 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2589 if test x${is_cross_compiler} = xno ; then
2590 echo 1>&2 '***' --with-headers is only supported when cross compiling
2593 if test x"${with_headers}" != xyes ; then
2594 x=${gcc_cv_tool_prefix}
2595 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2599 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2600 # the name directories are copied to $(tooldir)/lib. Multiple directories
2602 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2603 if test x${is_cross_compiler} = xno ; then
2604 echo 1>&2 '***' --with-libs is only supported when cross compiling
2607 if test x"${with_libs}" != xyes ; then
2608 # Copy the libraries in reverse order, so that files in the first named
2609 # library override files in subsequent libraries.
2610 x=${gcc_cv_tool_prefix}
2611 for l in ${with_libs}; do
2612 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2617 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2619 # This is done by determining whether or not the appropriate directory
2620 # is available, and by checking whether or not specific configurations
2621 # have requested that this magic not happen.
2623 # The command line options always override the explicit settings in
2624 # configure.ac, and the settings in configure.ac override this magic.
2626 # If the default for a toolchain is to use GNU as and ld, and you don't
2627 # want to do that, then you should use the --without-gnu-as and
2628 # --without-gnu-ld options for the configure script. Similarly, if
2629 # the default is to use the included zlib and you don't want to do that,
2630 # you should use the --with-system-zlib option for the configure script.
2632 if test x${use_gnu_as} = x &&
2633 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2635 extra_host_args="$extra_host_args --with-gnu-as"
2638 if test x${use_gnu_ld} = x &&
2639 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2641 extra_host_args="$extra_host_args --with-gnu-ld"
2644 if test x${use_included_zlib} = x &&
2645 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2648 with_system_zlib=yes
2649 extra_host_args="$extra_host_args --with-system-zlib"
2652 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2653 # can detect this case.
2655 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2657 extra_host_args="$extra_host_args --with-newlib"
2660 # Handle ${copy_dirs}
2661 set fnord ${copy_dirs}
2663 while test $# != 0 ; do
2664 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2667 echo Copying $1 to $2
2669 # Use the install script to create the directory and all required
2670 # parent directories.
2671 if test -d $2 ; then
2675 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2678 # Copy the directory, assuming we have tar.
2679 # FIXME: Should we use B in the second tar? Not all systems support it.
2680 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2682 # It is the responsibility of the user to correctly adjust all
2683 # symlinks. If somebody can figure out how to handle them correctly
2684 # here, feel free to add the code.
2691 # Determine a target-dependent exec_prefix that the installed
2692 # gcc will search in. Keep this list sorted by triplet, with
2693 # the *-*-osname triplets last.
2696 i[[34567]]86-pc-msdosdjgpp*)
2697 md_exec_prefix=/dev/env/DJDIR/bin
2702 md_exec_prefix=/usr/ccs/bin
2706 extra_arflags_for_target=
2707 extra_nmflags_for_target=
2708 extra_ranlibflags_for_target=
2709 target_makefile_frag=/dev/null
2712 target_makefile_frag="config/mt-spu"
2714 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2715 target_makefile_frag="config/mt-sde"
2717 mipsisa*-*-elfoabi*)
2718 target_makefile_frag="config/mt-mips-elfoabi"
2720 mips*-*-*linux* | mips*-*-gnu*)
2721 target_makefile_frag="config/mt-mips-gnu"
2724 target_makefile_frag="config/mt-nios2-elf"
2727 target_makefile_frag="config/mt-android"
2729 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2730 target_makefile_frag="config/mt-gnu"
2732 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2733 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2734 # commands to handle both 32-bit and 64-bit objects. These flags are
2735 # harmless if we're using GNU nm or ar.
2736 extra_arflags_for_target=" -X32_64"
2737 extra_nmflags_for_target=" -B -X32_64"
2741 alphaieee_frag=/dev/null
2744 # This just makes sure to use the -mieee option to build target libs.
2745 # This should probably be set individually by each library.
2746 alphaieee_frag="config/mt-alphaieee"
2750 # If --enable-target-optspace always use -Os instead of -O2 to build
2751 # the target libraries, similarly if it is not specified, use -Os
2752 # on selected platforms.
2753 ospace_frag=/dev/null
2754 case "${enable_target_optspace}:${target}" in
2756 ospace_frag="config/mt-ospace"
2759 ospace_frag="config/mt-d30v"
2761 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2762 ospace_frag="config/mt-ospace"
2767 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2771 # Some systems (e.g., one of the i386-aix systems the gas testers are
2772 # using) don't handle "\$" correctly, so don't use it here.
2773 tooldir='${exec_prefix}'/${target_noncanonical}
2774 build_tooldir=${tooldir}
2776 # Create a .gdbinit file which runs the one in srcdir
2777 # and tells GDB to look there for source files.
2779 if test -r ${srcdir}/.gdbinit ; then
2782 *) cat > ./.gdbinit <<EOF
2786 source ${srcdir}/.gdbinit
2792 # Make sure that the compiler is able to generate an executable. If it
2793 # can't, we are probably in trouble. We don't care whether we can run the
2794 # executable--we might be using a cross compiler--we only care whether it
2795 # can be created. At this point the main configure script has set CC.
2797 echo "int main () { return 0; }" > conftest.c
2798 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2799 if test $? = 0 ; then
2800 if test -s conftest || test -s conftest.exe ; then
2806 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2807 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2814 # Decide which environment variable is used to find dynamic libraries.
2816 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2817 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2818 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2819 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2822 # On systems where the dynamic library environment variable is PATH,
2823 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2824 # built executables to PATH.
2825 if test "$RPATH_ENVVAR" = PATH; then
2826 GCC_SHLIB_SUBDIR=/shlib
2831 # Adjust the toplevel makefile according to whether bootstrap was selected.
2832 case $enable_bootstrap in
2834 bootstrap_suffix=bootstrap
2835 BUILD_CONFIG=bootstrap-debug
2838 bootstrap_suffix=no-bootstrap
2843 AC_MSG_CHECKING(for default BUILD_CONFIG)
2845 AC_ARG_WITH([build-config],
2846 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2847 [use config/NAME.mk build configuration])],
2848 [case $with_build_config in
2849 yes) with_build_config= ;;
2850 no) with_build_config= BUILD_CONFIG= ;;
2853 if test "x${with_build_config}" != x; then
2854 BUILD_CONFIG=$with_build_config
2856 case $BUILD_CONFIG in
2858 if echo "int f (void) { return 0; }" > conftest.c &&
2859 ${CC} -c conftest.c &&
2860 mv conftest.o conftest.o.g0 &&
2861 ${CC} -c -g conftest.c &&
2862 mv conftest.o conftest.o.g &&
2863 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2868 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2872 AC_MSG_RESULT($BUILD_CONFIG)
2873 AC_SUBST(BUILD_CONFIG)
2875 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2876 AC_MSG_CHECKING([for --enable-vtable-verify])
2877 AC_ARG_ENABLE(vtable-verify,
2878 [AS_HELP_STRING([--enable-vtable-verify],
2879 [Enable vtable verification feature])],
2880 [case "$enableval" in
2881 yes) enable_vtable_verify=yes ;;
2882 no) enable_vtable_verify=no ;;
2883 *) enable_vtable_verify=no;;
2885 [enable_vtable_verify=no])
2886 AC_MSG_RESULT($enable_vtable_verify)
2888 # Record target_configdirs and the configure arguments for target and
2889 # build configuration in Makefile.
2890 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2891 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2892 bootstrap_fixincludes=no
2894 # If we are building libgomp, bootstrap it.
2895 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2896 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2899 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2900 # or bootstrap-ubsan, bootstrap it.
2901 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2902 case "$BUILD_CONFIG" in
2903 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
2904 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2905 bootstrap_fixincludes=yes
2910 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2911 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2912 test "$enable_vtable_verify" != no; then
2913 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2916 # If we are building libatomic and the list of enabled languages includes the
2917 # D frontend, bootstrap it.
2918 if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
2919 case ,${enable_languages}, in
2921 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
2926 # Determine whether gdb needs tk/tcl or not.
2927 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2928 # and in that case we want gdb to be built without tk. Ugh!
2929 # In fact I believe gdb is the *only* package directly dependent on tk,
2930 # so we should be able to put the 'maybe's in unconditionally and
2931 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2932 # 100% sure that that's safe though.
2934 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2935 case "$enable_gdbtk" in
2939 GDB_TK="${gdb_tk}" ;;
2941 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2942 # distro. Eventually someone will fix this and move Insight, nee
2943 # gdbtk to a separate directory.
2944 if test -d ${srcdir}/gdb/gdbtk ; then
2951 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2952 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2954 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
2955 # else does, only include them if one of these is built. The Makefile
2956 # provides the ordering, so it's enough here to add to the list.
2957 case " ${configdirs} " in
2959 configdirs="${configdirs} gnulib gdbsupport"
2962 configdirs="${configdirs} gnulib gdbsupport"
2965 configdirs="${configdirs} gnulib"
2969 # Strip out unwanted targets.
2971 # While at that, we remove Makefiles if we were started for recursive
2972 # configuration, so that the top-level Makefile reconfigures them,
2973 # like we used to do when configure itself was recursive.
2975 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2976 # but now we're fixing up the Makefile ourselves with the additional
2977 # commands passed to AC_CONFIG_FILES. Use separate variables
2978 # extrasub-{build,host,target} not because there is any reason to split
2979 # the substitutions up that way, but only to remain below the limit of
2980 # 99 commands in a script, for HP-UX sed.
2982 # Do not nest @if/@endif or @unless/@endunless pairs, because
2983 # configure will not warn you at all.
2985 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2986 yes:yes:*\ gold\ *:*,c++,*) ;;
2987 yes:yes:*\ gold\ *:*)
2988 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2993 for module in ${build_configdirs} ; do
2994 if test -z "${no_recursion}" \
2995 && test -f ${build_subdir}/${module}/Makefile; then
2996 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2997 rm -f ${build_subdir}/${module}/Makefile
2999 extrasub_build="$extrasub_build
3000 /^@if build-$module\$/d
3001 /^@endif build-$module\$/d
3002 /^@unless build-$module\$/,/^@endunless build-$module\$/d
3003 /^@if build-$module-$bootstrap_suffix\$/d
3004 /^@endif build-$module-$bootstrap_suffix\$/d
3005 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
3008 for module in ${configdirs} ; do
3009 if test -z "${no_recursion}"; then
3010 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
3011 if test -f ${file}; then
3012 echo 1>&2 "*** removing ${file} to force reconfigure"
3017 case ${module},${bootstrap_fixincludes} in
3018 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
3019 *) host_bootstrap_suffix=$bootstrap_suffix ;;
3021 extrasub_host="$extrasub_host
3023 /^@endif $module\$/d
3024 /^@unless $module\$/,/^@endunless $module\$/d
3025 /^@if $module-$host_bootstrap_suffix\$/d
3026 /^@endif $module-$host_bootstrap_suffix\$/d
3027 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
3030 for module in ${target_configdirs} ; do
3031 if test -z "${no_recursion}" \
3032 && test -f ${target_subdir}/${module}/Makefile; then
3033 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
3034 rm -f ${target_subdir}/${module}/Makefile
3037 # We only bootstrap target libraries listed in bootstrap_target_libs.
3038 case $bootstrap_target_libs in
3039 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
3040 *) target_bootstrap_suffix=no-bootstrap ;;
3043 extrasub_target="$extrasub_target
3044 /^@if target-$module\$/d
3045 /^@endif target-$module\$/d
3046 /^@unless target-$module\$/,/^@endunless target-$module\$/d
3047 /^@if target-$module-$target_bootstrap_suffix\$/d
3048 /^@endif target-$module-$target_bootstrap_suffix\$/d
3049 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
3052 # Do the final fixup along with target modules.
3053 extrasub_target="$extrasub_target
3058 if test "$enable_pgo_build" != "no"; then
3059 extrasub_build="$extrasub_build
3061 /^@endif pgo-build\$/d"
3064 # Create the serialization dependencies. This uses a temporary file.
3066 AC_ARG_ENABLE([serial-configure],
3067 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3068 [force sequential configuration of
3069 sub-packages for the host, target or build
3070 machine, or all sub-packages])])
3072 case ${enable_serial_configure} in
3074 enable_serial_build_configure=yes
3075 enable_serial_host_configure=yes
3076 enable_serial_target_configure=yes
3080 # These force 'configure's to be done one at a time, to avoid problems
3081 # with contention over a shared config.cache.
3083 echo '# serdep.tmp' > serdep.tmp
3085 test "x${enable_serial_build_configure}" = xyes &&
3086 for item in ${build_configdirs} ; do
3089 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
3094 test "x${enable_serial_host_configure}" = xyes &&
3095 for item in ${configdirs} ; do
3098 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
3103 test "x${enable_serial_target_configure}" = xyes &&
3104 for item in ${target_configdirs} ; do
3107 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
3111 serialization_dependencies=serdep.tmp
3112 AC_SUBST_FILE(serialization_dependencies)
3114 # Base args. Strip norecursion, cache-file, srcdir, host, build,
3115 # target, nonopt, and variable assignments. These are the ones we
3116 # might not want to pass down to subconfigures. The exception being
3117 # --cache-file=/dev/null, which is used to turn off the use of cache
3118 # files altogether, and which should be passed on to subconfigures.
3119 # Also strip program-prefix, program-suffix, and program-transform-name,
3120 # so that we can pass down a consistent program-transform-name.
3125 eval "set -- $ac_configure_args"
3128 if test X"$skip_next" = X"yes"; then
3132 if test X"$keep_next" = X"yes"; then
3135 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3137 baseargs="$baseargs '$ac_arg'"
3138 tbaseargs="$tbaseargs '$ac_arg'"
3143 # Handle separated arguments. Based on the logic generated by
3146 *=* | --config-cache | -C | -disable-* | --disable-* \
3147 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3148 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3149 | -with-* | --with-* | -without-* | --without-* | --x)
3163 --with-* | --without-*)
3164 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3168 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3171 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3180 mpc | mpfr | gmp | isl)
3181 # If we're processing --with-$lib, --with-$lib-include or
3182 # --with-$lib-lib, for one of the libs above, and target is
3183 # different from host, don't pass the current argument to any
3184 # target library's configure.
3185 if test x$is_cross_compiler = xyes; then
3194 --cache-file=/dev/null | \
3195 -cache-file=/dev/null )
3196 # Handled here to avoid the test to skip args below.
3197 baseargs="$baseargs '$ac_arg'"
3198 tbaseargs="$tbaseargs '$ac_arg'"
3199 # Assert: $separate_arg should always be no.
3200 keep_next=$separate_arg
3216 -program-prefix* | \
3217 -program-suffix* | \
3218 -program-transform-name* )
3219 skip_next=$separate_arg
3223 # An option. Add it.
3226 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3228 baseargs="$baseargs '$ac_arg'"
3229 if test X"$skip_targ" = Xno; then
3230 tbaseargs="$tbaseargs '$ac_arg'"
3232 keep_next=$separate_arg
3235 # Either a variable assignment, or a nonopt (triplet). Don't
3236 # pass it down; let the Makefile handle this.
3241 # Remove the initial space we just introduced and, as these will be
3242 # expanded by make, quote '$'.
3243 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3245 # Add in --program-transform-name, after --program-prefix and
3246 # --program-suffix have been applied to it. Autoconf has already
3247 # doubled dollar signs and backslashes in program_transform_name; we want
3248 # the backslashes un-doubled, and then the entire thing wrapped in single
3249 # quotes, because this will be expanded first by make and then by the shell.
3250 # Also, because we want to override the logic in subdir configure scripts to
3251 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3252 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3253 ${program_transform_name}
3255 gcc_transform_name=`cat conftestsed.out`
3256 rm -f conftestsed.out
3257 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3258 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3259 if test "$silent" = yes; then
3260 baseargs="$baseargs --silent"
3261 tbaseargs="$tbaseargs --silent"
3263 baseargs="$baseargs --disable-option-checking"
3264 tbaseargs="$tbaseargs --disable-option-checking"
3266 # Record and document user additions to sub configure arguments.
3267 AC_ARG_VAR([build_configargs],
3268 [additional configure arguments for build directories])
3269 AC_ARG_VAR([host_configargs],
3270 [additional configure arguments for host directories])
3271 AC_ARG_VAR([target_configargs],
3272 [additional configure arguments for target directories])
3274 # For the build-side libraries, we just need to pretend we're native,
3275 # and not use the same cache file. Multilibs are neither needed nor
3276 # desired. We can't even use the same cache file for all build-side
3277 # libraries, as they're compiled differently; some with C, some with
3278 # C++ or with different feature-enabling options.
3279 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3281 # For host modules, accept cache file option, or specification as blank.
3282 case "${cache_file}" in
3284 cache_file_option="" ;;
3285 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3286 cache_file_option="--cache-file=${cache_file}" ;;
3288 cache_file_option="--cache-file=../${cache_file}" ;;
3291 # Host dirs don't like to share a cache file either, horribly enough.
3292 # This seems to be due to autoconf 2.5x stupidity.
3293 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3295 target_configargs="$target_configargs ${tbaseargs}"
3297 # Passing a --with-cross-host argument lets the target libraries know
3298 # whether they are being built with a cross-compiler or being built
3299 # native. However, it would be better to use other mechanisms to make the
3300 # sorts of decisions they want to make on this basis. Please consider
3301 # this option to be deprecated. FIXME.
3302 if test x${is_cross_compiler} = xyes ; then
3303 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3306 # Special user-friendly check for native x86_64-linux build, if
3307 # multilib is not explicitly enabled.
3308 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3309 x86_64-*linux*:yes:$build:$build:)
3310 # Make sure we have a development environment that handles 32-bit
3312 echo "int main () { return 0; }" > conftest.c
3313 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3314 if test $? = 0 ; then
3315 if test -s conftest || test -s conftest.exe ; then
3320 if test x${dev64} != xyes ; then
3321 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.])
3326 # Default to --enable-multilib.
3327 if test x${enable_multilib} = x ; then
3328 target_configargs="--enable-multilib ${target_configargs}"
3331 # Pass --with-newlib if appropriate. Note that target_configdirs has
3332 # changed from the earlier setting of with_newlib.
3333 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3334 target_configargs="--with-newlib ${target_configargs}"
3337 # Different target subdirs use different values of certain variables
3338 # (notably CXX). Worse, multilibs use *lots* of different values.
3339 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3340 # it doesn't automatically accept command-line overrides of them.
3341 # This means it's not safe for target subdirs to share a cache file,
3342 # which is disgusting, but there you have it. Hopefully this can be
3343 # fixed in future. It's still worthwhile to use a cache file for each
3344 # directory. I think.
3346 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3347 # We need to pass --target, as newer autoconf's requires consistency
3348 # for target_alias and gcc doesn't manage it consistently.
3349 target_configargs="--cache-file=./config.cache ${target_configargs}"
3352 case " $target_configdirs " in
3354 case " $target_configargs " in
3355 *" --with-newlib "*)
3358 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3362 # If we're not building GCC, don't discard standard headers.
3363 if test -d ${srcdir}/gcc; then
3364 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3366 if test "${build}" != "${host}"; then
3367 # On Canadian crosses, CC_FOR_TARGET will have already been set
3368 # by `configure', so we won't have an opportunity to add -Bgcc/
3369 # to it. This is right: we don't want to search that directory
3370 # for binaries, but we want the header files in there, so add
3372 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3374 # Someone might think of using the pre-installed headers on
3375 # Canadian crosses, in case the installed compiler is not fully
3376 # compatible with the compiler being built. In this case, it
3377 # would be better to flag an error than risking having
3378 # incompatible object files being constructed. We can't
3379 # guarantee that an error will be flagged, but let's hope the
3380 # compiler will do it, when presented with incompatible header
3385 case "${target}-${is_cross_compiler}" in
3386 i[[3456789]]86-*-linux*-no)
3387 # Here host == target, so we don't need to build gcc,
3388 # so we don't want to discard standard headers.
3389 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3392 # If we're building newlib, use its generic headers last, but search
3393 # for any libc-related directories first (so make it the last -B
3395 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3397 # If we're building libgloss, find the startup file, simulator library
3398 # and linker script.
3399 case " $target_configdirs " in
3401 # Look for startup file, simulator library and maybe linker script.
3402 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3403 # Look for libnosys.a in case the target needs it.
3404 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3405 # Most targets have the linker script in the source directory.
3406 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3417 x86_64-*mingw* | *-w64-mingw*)
3418 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3419 # however, use a symlink named 'mingw' in ${prefix} .
3420 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3423 # MinGW can't be handled as Cygwin above since it does not use newlib.
3424 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3428 # Allow the user to override the flags for
3429 # our build compiler if desired.
3430 if test x"${build}" = x"${host}" ; then
3431 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3432 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
3433 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3434 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3437 # On Canadian crosses, we'll be searching the right directories for
3438 # the previously-installed cross compiler, so don't bother to add
3439 # flags for directories within the install tree of the compiler
3440 # being built; programs in there won't even run.
3441 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3442 # Search for pre-installed headers if nothing else fits.
3443 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3446 if test "x${use_gnu_ld}" = x &&
3447 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3448 # Arrange for us to find uninstalled linker scripts.
3449 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3452 # Search for other target-specific linker scripts and such.
3455 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3459 # Makefile fragments.
3460 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3462 eval fragval=\$$frag
3463 if test $fragval != /dev/null; then
3464 eval $frag=${srcdir}/$fragval
3467 AC_SUBST_FILE(host_makefile_frag)
3468 AC_SUBST_FILE(target_makefile_frag)
3469 AC_SUBST_FILE(alphaieee_frag)
3470 AC_SUBST_FILE(ospace_frag)
3472 # Miscellanea: directories, flags, etc.
3473 AC_SUBST(RPATH_ENVVAR)
3474 AC_SUBST(GCC_SHLIB_SUBDIR)
3476 AC_SUBST(build_tooldir)
3477 AC_SUBST(CONFIGURE_GDB_TK)
3479 AC_SUBST(INSTALL_GDB_TK)
3481 # Build module lists & subconfigure args.
3482 AC_SUBST(build_configargs)
3483 AC_SUBST(build_configdirs)
3485 # Host module lists & subconfigure args.
3486 AC_SUBST(host_configargs)
3487 AC_SUBST(configdirs)
3488 AC_SUBST(target_configdirs)
3490 # Target module lists & subconfigure args.
3491 AC_SUBST(target_configargs)
3495 AC_SUBST(AR_FOR_BUILD)
3496 AC_SUBST(AS_FOR_BUILD)
3497 AC_SUBST(CC_FOR_BUILD)
3498 AC_SUBST(CFLAGS_FOR_BUILD)
3499 AC_SUBST(CPP_FOR_BUILD)
3500 AC_SUBST(CPPFLAGS_FOR_BUILD)
3501 AC_SUBST(CXXFLAGS_FOR_BUILD)
3502 AC_SUBST(CXX_FOR_BUILD)
3503 AC_SUBST(DLLTOOL_FOR_BUILD)
3504 AC_SUBST(DSYMUTIL_FOR_BUILD)
3505 AC_SUBST(GFORTRAN_FOR_BUILD)
3506 AC_SUBST(GOC_FOR_BUILD)
3507 AC_SUBST(GDC_FOR_BUILD)
3508 AC_SUBST(LDFLAGS_FOR_BUILD)
3509 AC_SUBST(LD_FOR_BUILD)
3510 AC_SUBST(NM_FOR_BUILD)
3511 AC_SUBST(RANLIB_FOR_BUILD)
3512 AC_SUBST(WINDMC_FOR_BUILD)
3513 AC_SUBST(WINDRES_FOR_BUILD)
3515 # Generate default definitions for YACC, M4, LEX and other programs that run
3516 # on the build machine. These are used if the Makefile can't locate these
3517 # programs in objdir.
3518 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3520 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3521 case " $build_configdirs " in
3522 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3525 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3526 case " $build_configdirs " in
3527 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3530 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3531 case " $build_configdirs " in
3532 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3535 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3536 case " $build_configdirs " in
3537 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3538 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3541 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3542 case " $build_configdirs " in
3543 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3546 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3547 case " $build_configdirs " in
3548 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3551 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3552 # higher, else we use the "missing" dummy.
3553 if ${MAKEINFO} --version \
3554 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3557 MAKEINFO="$MISSING makeinfo"
3563 # FIXME: expect and dejagnu may become build tools?
3565 AC_CHECK_PROGS(EXPECT, expect, expect)
3566 case " $configdirs " in
3568 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3572 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3573 case " $configdirs " in
3575 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3581 NCN_STRICT_CHECK_TOOLS(AR, ar)
3582 NCN_STRICT_CHECK_TOOLS(AS, as)
3583 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3584 NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
3585 NCN_STRICT_CHECK_TOOLS(LD, ld)
3586 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3587 NCN_STRICT_CHECK_TOOLS(NM, nm)
3588 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3589 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3590 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3591 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3592 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3593 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3594 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3595 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3604 AC_ARG_WITH([build-time-tools],
3605 [AS_HELP_STRING([--with-build-time-tools=PATH],
3606 [use given path to find target tools during the build])],
3607 [case x"$withval" in
3610 with_build_time_tools=
3611 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3614 [with_build_time_tools=])
3616 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3617 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3618 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3619 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3620 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3621 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3623 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3624 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3625 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3626 ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
3627 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3628 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3629 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3630 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3631 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3632 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3633 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3634 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3635 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3636 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3637 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3639 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3641 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3642 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3643 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3644 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3645 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3646 [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],
3648 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3649 [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],
3651 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3652 GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
3653 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3654 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3655 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3656 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3657 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3658 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3659 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3660 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3661 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3662 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3663 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3664 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3665 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3666 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3667 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3668 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3669 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3670 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3672 AC_SUBST(FLAGS_FOR_TARGET)
3673 AC_SUBST(RAW_CXX_FOR_TARGET)
3675 # Certain tools may need extra flags.
3676 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3677 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3678 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3680 # When building target libraries, except in a Canadian cross, we use
3681 # the same toolchain as the compiler we just built.
3682 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3683 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3684 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3685 if test $host = $build; then
3686 case " $configdirs " in
3688 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3689 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3690 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3695 AC_SUBST(COMPILER_AS_FOR_TARGET)
3696 AC_SUBST(COMPILER_LD_FOR_TARGET)
3697 AC_SUBST(COMPILER_NM_FOR_TARGET)
3699 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3700 AC_ARG_ENABLE(maintainer-mode,
3701 [AS_HELP_STRING([--enable-maintainer-mode],
3702 [enable make rules and dependencies not useful
3703 (and sometimes confusing) to the casual installer])],
3704 USE_MAINTAINER_MODE=$enableval,
3705 USE_MAINTAINER_MODE=no)
3706 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3707 AC_SUBST(MAINTAINER_MODE_TRUE)
3708 AC_SUBST(MAINTAINER_MODE_FALSE)
3709 if test "$USE_MAINTAINER_MODE" = yes; then
3710 MAINTAINER_MODE_TRUE=
3711 MAINTAINER_MODE_FALSE='#'
3713 MAINTAINER_MODE_TRUE='#'
3714 MAINTAINER_MODE_FALSE=
3716 MAINT=$MAINTAINER_MODE_TRUE
3719 # ---------------------
3720 # GCC bootstrap support
3721 # ---------------------
3723 # Stage specific cflags for build.
3728 yes) stage1_cflags="-g -Wa,-J" ;;
3729 *) stage1_cflags="-g -J" ;;
3733 AC_SUBST(stage1_cflags)
3735 # Enable --enable-checking in stage1 of the compiler.
3736 AC_ARG_ENABLE(stage1-checking,
3737 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3738 [choose additional checking for stage1 of the compiler])],
3739 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3740 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3741 # For --disable-checking or implicit --enable-checking=release, avoid
3742 # setting --enable-checking=gc in the default stage1 checking for LTO
3743 # bootstraps. See PR62077.
3744 case $BUILD_CONFIG in
3746 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3748 stage1_checking=--enable-checking=yes,types;;
3750 if test "x$enable_checking" = x && \
3751 test -d ${srcdir}/gcc && \
3752 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3753 stage1_checking=--enable-checking=yes,types,extra
3756 stage1_checking=--enable-checking=$enable_checking,types
3758 AC_SUBST(stage1_checking)
3760 # Enable -Werror in bootstrap stage2 and later.
3761 AC_ARG_ENABLE(werror,
3762 [AS_HELP_STRING([--enable-werror],
3763 [enable -Werror in bootstrap stage2 and later])],
3765 case ${enable_werror} in
3766 yes) stage2_werror_flag="--enable-werror-always" ;;
3767 *) stage2_werror_flag="" ;;
3771 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3772 case $BUILD_CONFIG in
3774 stage2_werror_flag="--enable-werror-always" ;;
3776 stage2_werror_flag="--enable-werror-always" ;;
3781 AC_SUBST(stage2_werror_flag)
3783 # Specify what files to not compare during bootstrap.
3785 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3787 hppa*64*-*-hpux*) ;;
3788 hppa*-*-hpux*) compare_exclusions="$compare_exclusions | */libgcc/lib2funcs* | gcc/function-tests.o" ;;
3789 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
3791 AC_SUBST(compare_exclusions)
3793 AC_CONFIG_FILES([Makefile],
3794 [sed "$extrasub_build" Makefile |
3795 sed "$extrasub_host" |
3796 sed "$extrasub_target" > mf$$
3797 mv -f mf$$ Makefile],
3798 [extrasub_build="$extrasub_build"
3799 extrasub_host="$extrasub_host"
3800 extrasub_target="$extrasub_target"])