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 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([libtool.m4])
27 m4_include([ltoptions.m4])
28 m4_include([ltsugar.m4])
29 m4_include([ltversion.m4])
30 m4_include([lt~obsolete.m4])
31 m4_include([config/isl.m4])
33 AC_INIT(move-if-change)
35 AC_DISABLE_OPTION_CHECKING
38 # if PWD already has a value, it is probably wrong.
39 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
41 # Export original configure arguments for use by sub-configures.
42 # Quote arguments with shell meta charatcers.
43 TOPLEVEL_CONFIGURE_ARGUMENTS=
44 set -- "$progname" "$@"
48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
50 # if the argument is of the form -foo=baz, quote the baz part only
51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
54 # Add the quoted argument to the list.
55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
57 if test "$silent" = yes; then
58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
60 # Remove the initial space we just introduced and, as these will be
61 # expanded by make, quote '$'.
62 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
63 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
65 # Find the build, host, and target systems.
66 ACX_NONCANONICAL_BUILD
68 ACX_NONCANONICAL_TARGET
70 dnl Autoconf 2.5x and later will set a default program prefix if
71 dnl --target was used, even if it was the same as --host. Disable
72 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
74 test "$host_noncanonical" = "$target_noncanonical" &&
75 test "$program_prefix$program_suffix$program_transform_name" = \
77 program_transform_name=s,y,y,
82 m4_pattern_allow([^AS_FOR_TARGET$])dnl
83 m4_pattern_allow([^AS_FOR_BUILD$])dnl
85 # Get 'install' or 'install-sh' and its variants.
92 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
94 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
96 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
97 INSTALL="${srcpwd}/install-sh -c"
100 # Set srcdir to "." if that's what it is.
101 # This is important for multilib support.
103 if test "${pwd}" = "${srcpwd}" ; then
111 ### To add a new directory to the tree, first choose whether it is a target
112 ### or a host dependent tool. Then put it into the appropriate list
113 ### (library or tools, host or target), doing a dependency sort.
115 # Subdirs will be configured in the order listed in build_configdirs,
116 # configdirs, or target_configdirs; see the serialization section below.
118 # Dependency sorting is only needed when *configuration* must be done in
119 # a particular order. In all cases a dependency should be specified in
120 # the Makefile, whether or not it's implicitly specified here.
122 # Double entries in build_configdirs, configdirs, or target_configdirs may
123 # cause circular dependencies and break everything horribly.
125 # these library is used by various programs built for the build
128 build_libs="build-libiberty build-libcpp"
130 # these tools are built for the build environment
131 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
133 # these libraries are used by various programs built for the host environment
135 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv"
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 gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools"
145 # these libraries are built for the target environment, and are built after
146 # the host libraries and the host tools (which may be a cross compiler)
147 # Note that libiberty is not a target library.
148 target_libraries="target-libgcc \
149 target-libbacktrace \
154 target-liboffloadmic \
157 target-libstdc++-v3 \
158 target-libsanitizer \
168 # these tools are built using the target libraries, and are intended to
169 # run only in the target environment
171 # note: any program that *uses* libraries that are in the "target_libraries"
172 # list belongs in this list.
174 target_tools="target-rda"
176 ################################################################################
178 ## All tools belong in one of the four categories, and are assigned above
179 ## We assign ${configdirs} this way to remove all embedded newlines. This
180 ## is important because configure will choke if they ever get through.
181 ## ${configdirs} is directories we build using the host tools.
182 ## ${target_configdirs} is directories we build using the target tools.
183 configdirs=`echo ${host_libs} ${host_tools}`
184 target_configdirs=`echo ${target_libraries} ${target_tools}`
185 build_configdirs=`echo ${build_libs} ${build_tools}`
187 m4_divert_text([PARSE_ARGS],
190 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
191 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
192 m4_popdef([AS_MESSAGE_LOG_FD])dnl
195 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
198 ################################################################################
200 srcname="gnu development package"
202 # This gets set non-empty for some net releases of packages.
205 # Define is_cross_compiler to save on calls to 'test'.
207 if test x"${host}" = x"${target}" ; then
210 is_cross_compiler=yes
213 # Find the build and target subdir names.
215 # Be sure to cover against remnants of an in-tree build.
216 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
217 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
218 Use a pristine source tree when building in a separate tree])
221 # Skipdirs are removed silently.
223 # Noconfigdirs are removed loudly.
227 # Make sure we don't let GNU ld be added if we didn't want it.
228 if test x$with_gnu_ld = xno ; then
230 noconfigdirs="$noconfigdirs ld gold"
234 # Make sure we don't let GNU as be added if we didn't want it.
235 if test x$with_gnu_as = xno ; then
237 noconfigdirs="$noconfigdirs gas"
241 AC_ARG_WITH(system-zlib,
242 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
243 # Make sure we don't let ZLIB be added if we didn't want it.
244 if test x$with_system_zlib = xyes ; then
246 noconfigdirs="$noconfigdirs zlib"
249 # some tools are so dependent upon X11 that if we're not building with X,
250 # it's not even worth trying to configure, much less build, that tool.
253 yes | "") ;; # the default value for this tree is that X11 is available
255 skipdirs="${skipdirs} tk itcl libgui"
256 # We won't be able to build gdbtk without X.
259 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
262 # Some are only suitable for cross toolchains.
263 # Remove these if host=target.
264 cross_only="target-libgloss target-newlib target-opcodes"
266 case $is_cross_compiler in
267 no) skipdirs="${skipdirs} ${cross_only}" ;;
270 # If both --with-headers and --with-libs are specified, default to
272 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
273 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
274 if test x"${with_newlib}" = x ; then
279 # Recognize --with-newlib/--without-newlib.
280 case ${with_newlib} in
281 no) skipdirs="${skipdirs} target-newlib" ;;
282 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
285 AC_ARG_ENABLE(as-accelerator-for,
286 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
287 [build as offload target compiler.
288 Specify offload host triple by ARG])])
290 AC_ARG_ENABLE(offload-targets,
291 [AS_HELP_STRING([--enable-offload-targets=LIST],
292 [enable offloading to devices from comma-separated LIST of
293 TARGET[=DIR]. Use optional path to find offload target compiler
296 if test x"$enable_offload_targets" = x; then
297 AC_MSG_ERROR([no offload targets specified])
299 ], [enable_offload_targets=])
301 # Handle --enable-gold, --enable-ld.
302 # --disable-gold [--enable-ld]
303 # Build only ld. Default option.
304 # --enable-gold [--enable-ld]
305 # Build both gold and ld. Install gold as "ld.gold", install ld
306 # as "ld.bfd" and "ld".
307 # --enable-gold=default [--enable-ld]
308 # Build both gold and ld. Install gold as "ld.gold" and "ld",
309 # install ld as "ld.bfd".
310 # --enable-gold[=default] --disable-ld
311 # Build only gold, which is then installed as both "ld.gold" and "ld".
312 # --enable-gold --enable-ld=default
313 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
315 # In other words, ld is default
316 # --enable-gold=default --enable-ld=default
321 [AS_HELP_STRING([[--enable-gold[=ARG]]],
322 [build gold @<:@ARG={default,yes,no}@:>@])],
323 ENABLE_GOLD=$enableval,
325 case "${ENABLE_GOLD}" in
327 # Check for ELF target.
330 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
331 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
332 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
333 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
335 *-*-linux*aout* | *-*-linux*oldld*)
343 if test "$is_elf" = "yes"; then
344 # Check for target supported by gold.
346 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
347 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
348 configdirs="$configdirs gold"
349 if test x${ENABLE_GOLD} = xdefault; then
360 AC_MSG_ERROR([invalid --enable-gold argument])
365 [AS_HELP_STRING([[--enable-ld[=ARG]]],
366 [build ld @<:@ARG={default,yes,no}@:>@])],
367 ENABLE_LD=$enableval,
370 case "${ENABLE_LD}" in
372 if test x${default_ld} != x; then
373 AC_MSG_ERROR([either gold or ld can be the default ld])
379 if test x${ENABLE_GOLD} != xyes; then
380 AC_MSG_WARN([neither ld nor gold are enabled])
382 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
385 AC_MSG_ERROR([invalid --enable-ld argument])
390 # Decide the default method for compressing debug sections.
391 # Provide a configure time option to override our default.
392 AC_ARG_ENABLE(compressed_debug_sections,
393 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
394 [Enable compressed debug sections for gas, gold or ld by
397 if test x"$enable_compressed_debug_sections" = xyes; then
398 AC_MSG_ERROR([no program with compressed debug sections specified])
400 ], [enable_compressed_debug_sections=])
402 # Configure extra directories which are host specific
406 configdirs="$configdirs libtermcap" ;;
409 # A target can indicate whether a language isn't supported for some reason.
410 # Only spaces may be used in this macro; not newlines or tabs.
411 unsupported_languages=
413 # Remove more programs from consideration, based on the host or
414 # target this usually means that a port of the program doesn't
418 i[[3456789]]86-*-msdosdjgpp*)
419 noconfigdirs="$noconfigdirs tcl tk itcl"
424 AC_ARG_ENABLE(libquadmath,
425 AS_HELP_STRING([--disable-libquadmath],
426 [do not build libquadmath directory]),
427 ENABLE_LIBQUADMATH=$enableval,
428 ENABLE_LIBQUADMATH=yes)
429 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
430 noconfigdirs="$noconfigdirs target-libquadmath"
434 AC_ARG_ENABLE(libquadmath-support,
435 AS_HELP_STRING([--disable-libquadmath-support],
436 [disable libquadmath support for Fortran]),
437 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
438 ENABLE_LIBQUADMATH_SUPPORT=yes)
439 enable_libquadmath_support=
440 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
441 enable_libquadmath_support=no
445 AC_ARG_ENABLE(libada,
446 [AS_HELP_STRING([--enable-libada], [build libada directory])],
447 ENABLE_LIBADA=$enableval,
449 if test "${ENABLE_LIBADA}" != "yes" ; then
450 noconfigdirs="$noconfigdirs gnattools"
453 AC_ARG_ENABLE(libssp,
454 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
455 ENABLE_LIBSSP=$enableval,
458 AC_ARG_ENABLE(libstdcxx,
459 AS_HELP_STRING([--disable-libstdcxx],
460 [do not build libstdc++-v3 directory]),
461 ENABLE_LIBSTDCXX=$enableval,
462 ENABLE_LIBSTDCXX=default)
463 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
464 noconfigdirs="$noconfigdirs target-libstdc++-v3"
467 # If this is accelerator compiler and its target is intelmic we enable
468 # target liboffloadmic by default. If this is compiler with offloading
469 # for intelmic we enable host liboffloadmic by default. Otherwise
470 # liboffloadmic is disabled by default.
471 AC_ARG_ENABLE([liboffloadmic],
472 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
473 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
474 [case "$enableval" in
476 enable_liboffloadmic=$enableval ;;
478 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
480 [if test x"$enable_as_accelerator_for" != x; then
482 *-intelmic-* | *-intelmicemul-*)
483 enable_liboffloadmic=target
484 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
487 enable_liboffloadmic=no
491 case "${enable_offload_targets}" in
492 *-intelmic-* | *-intelmicemul-*)
493 enable_liboffloadmic=host
494 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
497 enable_liboffloadmic=no
501 AC_SUBST(extra_liboffloadmic_configure_flags)
503 # Enable libgomp by default on hosted POSIX systems, and a few others.
504 if test x$enable_libgomp = x ; then
506 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
508 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
510 *-*-solaris2* | *-*-hpux11*)
512 *-*-darwin* | *-*-aix*)
517 noconfigdirs="$noconfigdirs target-libgomp"
522 # Disable libatomic on unsupported systems.
523 if test -d ${srcdir}/libatomic; then
524 if test x$enable_libatomic = x; then
525 AC_MSG_CHECKING([for libatomic support])
526 if (srcdir=${srcdir}/libatomic; \
527 . ${srcdir}/configure.tgt; \
528 test -n "$UNSUPPORTED")
531 noconfigdirs="$noconfigdirs target-libatomic"
538 # Disable libcilkrts on unsupported systems.
539 if test -d ${srcdir}/libcilkrts; then
540 if test x$enable_libcilkrts = x; then
541 AC_MSG_CHECKING([for libcilkrts support])
542 if (srcdir=${srcdir}/libcilkrts; \
543 . ${srcdir}/configure.tgt; \
544 test -n "$UNSUPPORTED")
547 noconfigdirs="$noconfigdirs target-libcilkrts"
554 # Disable liboffloadmic on unsupported systems.
555 if test -d ${srcdir}/liboffloadmic; then
556 if test x$enable_liboffloadmic != xno; then
557 AC_MSG_CHECKING([for liboffloadmic support])
558 if (srcdir=${srcdir}/liboffloadmic; \
559 . ${srcdir}/configure.tgt; \
560 test -n "$UNSUPPORTED")
563 noconfigdirs="$noconfigdirs target-liboffloadmic"
570 # Disable libitm on unsupported systems.
571 if test -d ${srcdir}/libitm; then
572 if test x$enable_libitm = x; then
573 AC_MSG_CHECKING([for libitm support])
574 if (srcdir=${srcdir}/libitm; \
575 . ${srcdir}/configure.tgt; \
576 test -n "$UNSUPPORTED")
579 noconfigdirs="$noconfigdirs target-libitm"
586 # Disable libsanitizer on unsupported systems.
587 if test -d ${srcdir}/libsanitizer; then
588 if test x$enable_libsanitizer = x; then
589 AC_MSG_CHECKING([for libsanitizer support])
590 if (srcdir=${srcdir}/libsanitizer; \
591 . ${srcdir}/configure.tgt; \
592 test -n "$UNSUPPORTED")
595 noconfigdirs="$noconfigdirs target-libsanitizer"
602 # Disable libvtv on unsupported systems.
603 if test -d ${srcdir}/libvtv; then
604 if test x$enable_libvtv = x; then
605 AC_MSG_CHECKING([for libvtv support])
606 if (srcdir=${srcdir}/libvtv; \
607 . ${srcdir}/configure.tgt; \
608 test "$VTV_SUPPORTED" != "yes")
611 noconfigdirs="$noconfigdirs target-libvtv"
619 # Enable libmpx on supported systems by request.
620 if test -d ${srcdir}/libmpx; then
621 if test x$enable_libmpx = x; then
622 AC_MSG_CHECKING([for libmpx support])
623 if (srcdir=${srcdir}/libmpx; \
624 . ${srcdir}/configure.tgt; \
625 test "$LIBMPX_SUPPORTED" != "yes")
628 noconfigdirs="$noconfigdirs target-libmpx"
637 # Disable libquadmath for some systems.
640 noconfigdirs="$noconfigdirs target-libquadmath"
642 # libquadmath is unused on AIX and libquadmath build process use of
643 # LD_LIBRARY_PATH can break AIX bootstrap.
644 powerpc-*-aix* | rs6000-*-aix*)
645 noconfigdirs="$noconfigdirs target-libquadmath"
649 # Disable libssp for some systems.
652 # No hosted I/O support.
653 noconfigdirs="$noconfigdirs target-libssp"
655 powerpc-*-aix* | rs6000-*-aix*)
656 noconfigdirs="$noconfigdirs target-libssp"
659 # libssp uses a misaligned load to trigger a fault, but the RL78
660 # doesn't fault for those - instead, it gives a build-time error
661 # for explicit misaligned loads.
662 noconfigdirs="$noconfigdirs target-libssp"
665 # No hosted I/O support.
666 noconfigdirs="$noconfigdirs target-libssp"
670 # Disable libstdc++-v3 for some systems.
671 # Allow user to override this if they pass --enable-libstdc++-v3
672 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
675 # VxWorks uses the Dinkumware C++ library.
676 noconfigdirs="$noconfigdirs target-libstdc++-v3"
679 # the C++ libraries don't build on top of CE's C libraries
680 noconfigdirs="$noconfigdirs target-libstdc++-v3"
683 noconfigdirs="$noconfigdirs target-libstdc++-v3"
686 noconfigdirs="$noconfigdirs target-libstdc++-v3"
691 # Disable Fortran for some systems.
694 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
695 unsupported_languages="$unsupported_languages fortran"
699 # Disable libgo for some systems where it is known to not work.
700 # For testing, you can easily override this with --enable-libgo.
701 if test x$enable_libgo = x; then
705 noconfigdirs="$noconfigdirs target-libgo"
707 *-*-cygwin* | *-*-mingw*)
708 noconfigdirs="$noconfigdirs target-libgo"
711 noconfigdirs="$noconfigdirs target-libgo"
716 # Default libgloss CPU subdirectory.
717 libgloss_dir="$target_cpu"
720 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
729 cris-*-* | crisv32-*-*)
738 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
755 # Disable newlib and libgloss for various target OSes.
758 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
760 i[[3456789]]86-*-linux*)
761 # This section makes it possible to build newlib natively on linux.
762 # If we are using a cross compiler then don't configure newlib.
763 if test x${is_cross_compiler} != xno ; then
764 noconfigdirs="$noconfigdirs target-newlib"
766 noconfigdirs="$noconfigdirs target-libgloss"
767 # If we are not using a cross compiler, do configure newlib.
768 # Note however, that newlib will only be configured in this situation
769 # if the --with-newlib option has been given, because otherwise
770 # 'target-newlib' will appear in skipdirs.
772 i[[3456789]]86-*-rdos*)
773 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
775 sh*-*-pe|mips*-*-pe|arm-wince-pe)
776 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
779 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
782 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
785 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
788 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
791 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
794 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
796 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
797 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
800 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
803 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
806 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
809 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
812 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
815 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
818 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
826 noconfigdirs="$noconfigdirs ld gas gdb gprof"
827 noconfigdirs="$noconfigdirs sim target-rda"
830 noconfigdirs="$noconfigdirs ld gas gdb gprof"
831 noconfigdirs="$noconfigdirs sim target-rda"
834 noconfigdirs="$noconfigdirs ld gas gdb gprof"
835 noconfigdirs="$noconfigdirs sim target-rda"
837 i[[3456789]]86-*-darwin*)
838 noconfigdirs="$noconfigdirs ld gprof"
839 noconfigdirs="$noconfigdirs sim target-rda"
841 x86_64-*-darwin[[912]]*)
842 noconfigdirs="$noconfigdirs ld gas gprof"
843 noconfigdirs="$noconfigdirs sim target-rda"
846 noconfigdirs="$noconfigdirs ld gas gdb gprof"
847 noconfigdirs="$noconfigdirs sim target-rda"
852 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
853 && test -f /usr/local/include/gmp.h; then
858 # Remove unsupported stuff on all kaOS configurations.
859 noconfigdirs="$noconfigdirs target-libgloss"
866 noconfigdirs="$noconfigdirs target-libgloss"
869 noconfigdirs="$noconfigdirs target-libgloss"
870 # this is not caught below because this stanza matches earlier
872 or1k*-*-*) noconfigdirs="$noconfigdirs gdb" ;;
875 # The tpf target doesn't support gdb yet.
877 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
880 noconfigdirs="$noconfigdirs target-rda"
885 # ld works, but does not support shared libraries.
886 # gas doesn't generate exception information.
887 noconfigdirs="$noconfigdirs gas ld"
890 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
893 # newlib is not 64 bit ready
894 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
896 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
897 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
900 noconfigdirs="$noconfigdirs sim"
903 noconfigdirs="$noconfigdirs target-libgloss"
906 noconfigdirs="$noconfigdirs ld target-libgloss"
909 if test x${with_avrlibc} != xno; then
910 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
914 noconfigdirs="$noconfigdirs target-libgloss"
917 noconfigdirs="$noconfigdirs target-libgloss gdb"
920 noconfigdirs="$noconfigdirs target-libgloss"
923 noconfigdirs="$noconfigdirs gdb"
926 noconfigdirs="$noconfigdirs gdb"
929 noconfigdirs="$noconfigdirs target-rda gprof"
932 noconfigdirs="$noconfigdirs"
935 noconfigdirs="$noconfigdirs target-libgloss"
938 noconfigdirs="$noconfigdirs target-libgloss"
940 hppa1.1-*-osf* | hppa1.1-*-bsd* )
943 noconfigdirs="$noconfigdirs gdb"
946 noconfigdirs="$noconfigdirs gdb ld"
960 noconfigdirs="$noconfigdirs ld"
963 noconfigdirs="$noconfigdirs gdb"
966 # No gdb support yet.
967 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
971 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
975 noconfigdirs="$noconfigdirs libgui itcl ld"
977 i[[3456789]]86-w64-mingw*)
979 i[[3456789]]86-*-mingw*)
980 target_configdirs="$target_configdirs target-winsup"
983 target_configdirs="$target_configdirs target-libtermcap target-winsup"
984 noconfigdirs="$noconfigdirs target-libgloss"
985 # always build newlib if winsup directory is present.
986 if test -d "$srcdir/winsup/cygwin"; then
987 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
988 elif test -d "$srcdir/newlib"; then
989 echo "Warning: winsup/cygwin is missing so newlib can't be built."
993 noconfigdirs="$noconfigdirs target-libgloss"
995 i[[3456789]]86-*-sco3.2v5*)
996 # The linker does not yet know about weak symbols in COFF,
997 # and is not configured to handle mixed ELF and COFF.
998 noconfigdirs="$noconfigdirs ld target-libgloss"
1000 i[[3456789]]86-*-sco*)
1001 noconfigdirs="$noconfigdirs gprof target-libgloss"
1003 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1004 noconfigdirs="$noconfigdirs target-libgloss"
1006 i[[3456789]]86-*-sysv4*)
1007 noconfigdirs="$noconfigdirs target-libgloss"
1009 i[[3456789]]86-*-beos*)
1010 noconfigdirs="$noconfigdirs gdb"
1012 i[[3456789]]86-*-rdos*)
1013 noconfigdirs="$noconfigdirs gdb"
1016 noconfigdirs="$noconfigdirs gdb"
1019 noconfigdirs="$noconfigdirs sim"
1022 # copied from rs6000-*-* entry
1023 noconfigdirs="$noconfigdirs gprof"
1025 powerpc*-*-winnt* | powerpc*-*-pe*)
1026 target_configdirs="$target_configdirs target-winsup"
1027 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1028 # always build newlib.
1029 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1031 # This is temporary until we can link against shared libraries
1032 powerpcle-*-solaris*)
1033 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1036 noconfigdirs="$noconfigdirs gdb"
1039 noconfigdirs="$noconfigdirs gprof"
1042 noconfigdirs="$noconfigdirs gprof"
1045 noconfigdirs="$noconfigdirs gprof"
1048 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1051 noconfigdirs="$noconfigdirs gprof"
1053 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1054 if test x$with_newlib = xyes; then
1055 noconfigdirs="$noconfigdirs gprof"
1059 noconfigdirs="$noconfigdirs gprof target-libgloss"
1062 noconfigdirs="$noconfigdirs gprof target-libgloss"
1065 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1069 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1070 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1071 noconfigdirs="$noconfigdirs ld gas gprof"
1074 noconfigdirs="$noconfigdirs gprof"
1077 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1080 noconfigdirs="$noconfigdirs gdb"
1087 noconfigdirs="$noconfigdirs target-libgloss" ;;
1091 if test x${is_cross_compiler} = xno ; then
1096 noconfigdirs="$noconfigdirs sim"
1098 tilepro*-*-* | tilegx*-*-*)
1099 noconfigdirs="$noconfigdirs sim"
1102 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1105 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1109 # If we aren't building newlib, then don't build libgloss, since libgloss
1110 # depends upon some newlib header files.
1111 case "${noconfigdirs}" in
1112 *target-libgloss*) ;;
1113 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1116 # Work in distributions that contain no compiler tools, like Autoconf.
1117 host_makefile_frag=/dev/null
1118 if test -d ${srcdir}/config ; then
1120 i[[3456789]]86-*-msdosdjgpp*)
1121 host_makefile_frag="config/mh-djgpp"
1124 ACX_CHECK_CYGWIN_CAT_WORKS
1125 host_makefile_frag="config/mh-cygwin"
1128 host_makefile_frag="config/mh-mingw"
1131 host_makefile_frag="config/mh-alpha-linux"
1134 host_makefile_frag="config/mh-pa-hpux10"
1137 host_makefile_frag="config/mh-pa"
1140 host_makefile_frag="config/mh-pa"
1143 host_makefile_frag="config/mh-darwin"
1146 host_makefile_frag="config/mh-ppc-aix"
1149 host_makefile_frag="config/mh-ppc-aix"
1154 if test "${build}" != "${host}" ; then
1155 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1156 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1157 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1158 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1159 GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1160 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1161 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1162 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1163 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1164 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1165 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1166 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1167 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1169 AR_FOR_BUILD="\$(AR)"
1170 AS_FOR_BUILD="\$(AS)"
1171 CC_FOR_BUILD="\$(CC)"
1172 CXX_FOR_BUILD="\$(CXX)"
1173 GCJ_FOR_BUILD="\$(GCJ)"
1174 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1175 GOC_FOR_BUILD="\$(GOC)"
1176 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1177 LD_FOR_BUILD="\$(LD)"
1178 NM_FOR_BUILD="\$(NM)"
1179 RANLIB_FOR_BUILD="\$(RANLIB)"
1180 WINDRES_FOR_BUILD="\$(WINDRES)"
1181 WINDMC_FOR_BUILD="\$(WINDMC)"
1187 # We must set the default linker to the linker used by gcc for the correct
1188 # operation of libtool. If LD is not defined and we are using gcc, try to
1189 # set the LD default to the ld used by gcc.
1190 if test -z "$LD"; then
1191 if test "$GCC" = yes; then
1194 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1196 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1198 case $gcc_prog_ld in
1199 # Accept absolute paths.
1200 [[\\/]* | [A-Za-z]:[\\/]*)]
1201 LD="$gcc_prog_ld" ;;
1206 # Check whether -static-libstdc++ -static-libgcc is supported.
1208 if test "$GCC" = yes; then
1209 saved_LDFLAGS="$LDFLAGS"
1211 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1212 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1215 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1216 #error -static-libstdc++ not implemented
1219 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1220 [AC_MSG_RESULT([no])])
1223 LDFLAGS="$saved_LDFLAGS"
1227 ACX_PROG_CMP_IGNORE_INITIAL
1229 AC_ARG_ENABLE([bootstrap],
1230 [AS_HELP_STRING([--enable-bootstrap],
1231 [enable bootstrapping @<:@yes if native build@:>@])],,
1232 enable_bootstrap=default)
1234 # Issue errors and warnings for invalid/strange bootstrap combinations.
1235 if test -r $srcdir/gcc/configure; then
1241 case "$have_compiler:$host:$target:$enable_bootstrap" in
1244 # Default behavior. Enable bootstrap if we have a compiler
1245 # and we are in a native configuration.
1246 yes:$build:$build:default)
1247 enable_bootstrap=yes ;;
1250 enable_bootstrap=no ;;
1252 # We have a compiler and we are in a native configuration, bootstrap is ok
1253 yes:$build:$build:yes)
1256 # Other configurations, but we have a compiler. Assume the user knows
1259 AC_MSG_WARN([trying to bootstrap a cross compiler])
1262 # No compiler: if they passed --enable-bootstrap explicitly, fail
1264 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1266 # Fail if wrong command line
1268 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1272 # When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1273 # C++98 compiler can still start the bootstrap.
1274 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1275 CXX="$CXX -std=gnu++98"
1278 # Used for setting $lt_cv_objdir
1281 # Check for GMP, MPFR and MPC
1282 gmplibs="-lmpc -lmpfr -lgmp"
1286 # Specify a location for mpc
1287 # check for this first so it ends up on the link line before mpfr.
1289 [AS_HELP_STRING([--with-mpc=PATH],
1290 [specify prefix directory for installed MPC package.
1291 Equivalent to --with-mpc-include=PATH/include
1292 plus --with-mpc-lib=PATH/lib])])
1293 AC_ARG_WITH(mpc-include,
1294 [AS_HELP_STRING([--with-mpc-include=PATH],
1295 [specify directory for installed MPC include files])])
1296 AC_ARG_WITH(mpc-lib,
1297 [AS_HELP_STRING([--with-mpc-lib=PATH],
1298 [specify directory for the installed MPC library])])
1300 if test "x$with_mpc" != x; then
1301 gmplibs="-L$with_mpc/lib $gmplibs"
1302 gmpinc="-I$with_mpc/include $gmpinc"
1304 if test "x$with_mpc_include" != x; then
1305 gmpinc="-I$with_mpc_include $gmpinc"
1307 if test "x$with_mpc_lib" != x; then
1308 gmplibs="-L$with_mpc_lib $gmplibs"
1310 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1311 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1312 gmpinc='-I$$s/mpc/src '"$gmpinc"
1313 # Do not test the mpc version. Assume that it is sufficient, since
1314 # it is in the source tree, and the library has not been built yet
1315 # but it would be included on the link line in the version check below
1316 # hence making the test fail.
1320 # Specify a location for mpfr
1321 # check for this first so it ends up on the link line before gmp.
1322 AC_ARG_WITH(mpfr-dir,
1323 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1324 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1325 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1328 [AS_HELP_STRING([--with-mpfr=PATH],
1329 [specify prefix directory for installed MPFR package.
1330 Equivalent to --with-mpfr-include=PATH/include
1331 plus --with-mpfr-lib=PATH/lib])])
1332 AC_ARG_WITH(mpfr-include,
1333 [AS_HELP_STRING([--with-mpfr-include=PATH],
1334 [specify directory for installed MPFR include files])])
1335 AC_ARG_WITH(mpfr-lib,
1336 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1337 [specify directory for the installed MPFR library])])
1339 if test "x$with_mpfr" != x; then
1340 gmplibs="-L$with_mpfr/lib $gmplibs"
1341 gmpinc="-I$with_mpfr/include $gmpinc"
1343 if test "x$with_mpfr_include" != x; then
1344 gmpinc="-I$with_mpfr_include $gmpinc"
1346 if test "x$with_mpfr_lib" != x; then
1347 gmplibs="-L$with_mpfr_lib $gmplibs"
1349 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1350 # MPFR v3.1.0 moved the sources into a src sub-directory.
1351 if ! test -d ${srcdir}/mpfr/src; then
1353 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1355 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1356 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1357 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1358 # Do not test the mpfr version. Assume that it is sufficient, since
1359 # it is in the source tree, and the library has not been built yet
1360 # but it would be included on the link line in the version check below
1361 # hence making the test fail.
1365 # Specify a location for gmp
1366 AC_ARG_WITH(gmp-dir,
1367 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1368 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1369 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1372 [AS_HELP_STRING([--with-gmp=PATH],
1373 [specify prefix directory for the installed GMP package.
1374 Equivalent to --with-gmp-include=PATH/include
1375 plus --with-gmp-lib=PATH/lib])])
1376 AC_ARG_WITH(gmp-include,
1377 [AS_HELP_STRING([--with-gmp-include=PATH],
1378 [specify directory for installed GMP include files])])
1379 AC_ARG_WITH(gmp-lib,
1380 [AS_HELP_STRING([--with-gmp-lib=PATH],
1381 [specify directory for the installed GMP library])])
1384 if test "x$with_gmp" != x; then
1385 gmplibs="-L$with_gmp/lib $gmplibs"
1386 gmpinc="-I$with_gmp/include $gmpinc"
1388 if test "x$with_gmp_include" != x; then
1389 gmpinc="-I$with_gmp_include $gmpinc"
1391 if test "x$with_gmp_lib" != x; then
1392 gmplibs="-L$with_gmp_lib $gmplibs"
1394 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1395 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1396 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1397 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1398 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1399 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1400 # Do not test the gmp version. Assume that it is sufficient, since
1401 # it is in the source tree, and the library has not been built yet
1402 # but it would be included on the link line in the version check below
1403 # hence making the test fail.
1407 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1409 saved_CFLAGS="$CFLAGS"
1410 CFLAGS="$CFLAGS $gmpinc"
1411 # Check for the recommended and required versions of GMP.
1412 AC_MSG_CHECKING([for the correct version of gmp.h])
1413 AC_TRY_COMPILE([#include "gmp.h"],[
1414 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1415 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1416 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1419 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1420 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1421 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1422 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1425 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1426 [AC_MSG_RESULT([no]); have_gmp=no])
1428 # If we have GMP, check the MPFR version.
1429 if test x"$have_gmp" = xyes; then
1430 # Check for the recommended and required versions of MPFR.
1431 AC_MSG_CHECKING([for the correct version of mpfr.h])
1432 AC_TRY_COMPILE([#include <gmp.h>
1433 #include <mpfr.h>],[
1434 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1437 ], [AC_TRY_COMPILE([#include <gmp.h>
1438 #include <mpfr.h>],[
1439 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1442 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1443 [AC_MSG_RESULT([no]); have_gmp=no])
1446 # Check for the MPC header version.
1447 if test x"$have_gmp" = xyes ; then
1448 # Check for the recommended and required versions of MPC.
1449 AC_MSG_CHECKING([for the correct version of mpc.h])
1450 AC_TRY_COMPILE([#include <mpc.h>],[
1451 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1454 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1455 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1458 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1459 [AC_MSG_RESULT([no]); have_gmp=no])
1462 # Now check the MPFR library.
1463 if test x"$have_gmp" = xyes; then
1465 LIBS="$LIBS $gmplibs"
1466 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1467 AC_TRY_LINK([#include <mpc.h>],[
1474 mpfr_atan2 (n, n, x, GMP_RNDN);
1475 mpfr_erfc (n, x, GMP_RNDN);
1476 mpfr_subnormalize (x, t, GMP_RNDN);
1480 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1481 mpc_cosh (c, c, MPC_RNDNN);
1482 mpc_pow (c, c, c, MPC_RNDNN);
1483 mpc_acosh (c, c, MPC_RNDNN);
1485 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1489 CFLAGS="$saved_CFLAGS"
1491 # The library versions listed in the error message below should match
1492 # the HARD-minimums enforced above.
1493 if test x$have_gmp != xyes; then
1494 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1495 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1496 their locations. Source code for these libraries can be found at
1497 their respective hosting sites as well as at
1498 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1499 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1500 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1501 make sure that you have installed both the libraries and the header
1502 files. They may be located in separate packages.])
1506 # Flags needed for both GMP, MPFR and/or MPC.
1509 AC_SUBST(extra_mpfr_configure_flags)
1510 AC_SUBST(extra_mpc_gmp_configure_flags)
1511 AC_SUBST(extra_mpc_mpfr_configure_flags)
1512 AC_SUBST(extra_isl_gmp_configure_flags)
1514 # Libraries to use for stage1 or when not bootstrapping.
1515 AC_ARG_WITH(stage1-libs,
1516 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1517 [if test "$withval" = "no" -o "$withval" = "yes"; then
1520 stage1_libs=$withval
1523 AC_SUBST(stage1_libs)
1525 # Linker flags to use for stage1 or when not bootstrapping.
1526 AC_ARG_WITH(stage1-ldflags,
1527 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1528 [if test "$withval" = "no" -o "$withval" = "yes"; then
1531 stage1_ldflags=$withval
1534 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1535 # if supported. But if the user explicitly specified the libraries to use,
1536 # trust that they are doing what they want.
1537 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1538 stage1_ldflags="-static-libstdc++ -static-libgcc"
1540 AC_SUBST(stage1_ldflags)
1542 # Libraries to use for stage2 and later builds.
1543 AC_ARG_WITH(boot-libs,
1544 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1545 [if test "$withval" = "no" -o "$withval" = "yes"; then
1548 poststage1_libs=$withval
1551 AC_SUBST(poststage1_libs)
1553 # Linker flags to use for stage2 and later builds.
1554 AC_ARG_WITH(boot-ldflags,
1555 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1556 [linker flags for stage2 and later])],
1557 [if test "$withval" = "no" -o "$withval" = "yes"; then
1560 poststage1_ldflags=$withval
1562 [poststage1_ldflags=
1563 # In stages 2 and 3, default to linking libstdc++ and libgcc
1564 # statically. But if the user explicitly specified the libraries to
1565 # use, trust that they are doing what they want.
1566 if test "$poststage1_libs" = ""; then
1567 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1569 AC_SUBST(poststage1_ldflags)
1571 # GCC GRAPHITE dependency isl.
1572 # Basic setup is inlined here, actual checks are in config/isl.m4
1577 [Specify prefix directory for the installed isl package.
1578 Equivalent to --with-isl-include=PATH/include
1579 plus --with-isl-lib=PATH/lib])])
1581 # Treat --without-isl as a request to disable
1582 # GRAPHITE support and skip all following checks.
1583 if test "x$with_isl" != "xno"; then
1585 dnl Provide configure switches and initialize islinc & isllibs
1586 dnl with user input.
1588 dnl The versions of isl that work for Graphite
1590 dnl Only execute fail-action, if isl has been requested.
1592 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1595 # If the isl check failed, disable builds of in-tree variant of isl
1596 if test "x$with_isl" = xno ||
1597 test "x$gcc_cv_isl" = xno; then
1598 noconfigdirs="$noconfigdirs isl"
1605 # Check for LTO support.
1607 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1608 enable_lto=$enableval,
1609 enable_lto=yes; default_enable_lto=yes)
1611 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1612 build_lto_plugin=yes
1613 ],[if test x"$default_enable_lto" = x"yes" ; then
1615 *-apple-darwin9* | *-cygwin* | *-mingw* | *djgpp*) ;;
1616 # On other non-ELF platforms, LTO has yet to be validated.
1620 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1621 # It would also be nice to check the binutils support, but we don't
1622 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1623 # warn during gcc/ subconfigure; unless you're bootstrapping with
1624 # -flto it won't be needed until after installation anyway.
1626 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1627 *) if test x"$enable_lto" = x"yes"; then
1628 AC_MSG_ERROR([LTO support is not enabled for this target.])
1633 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1634 # Build it unless LTO was explicitly disabled.
1636 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1641 AC_ARG_ENABLE(linker-plugin-configure-flags,
1642 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1643 [additional flags for configuring linker plugins @<:@none@:>@])],
1644 extra_linker_plugin_configure_flags=$enableval,
1645 extra_linker_plugin_configure_flags=)
1646 AC_SUBST(extra_linker_plugin_configure_flags)
1647 AC_ARG_ENABLE(linker-plugin-flags,
1648 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1649 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1650 extra_linker_plugin_flags=$enableval,
1651 extra_linker_plugin_flags=)
1652 AC_SUBST(extra_linker_plugin_flags)
1655 # By default, C and C++ are the only stage 1 languages.
1656 stage1_languages=,c,
1658 # Target libraries that we bootstrap.
1659 bootstrap_target_libs=,target-libgcc,
1661 # Figure out what language subdirectories are present.
1662 # Look if the user specified --enable-languages="..."; if not, use
1663 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1665 # NB: embedded tabs in this IF block -- do not untabify
1666 if test -d ${srcdir}/gcc; then
1667 if test x"${enable_languages+set}" != xset; then
1668 if test x"${LANGUAGES+set}" = xset; then
1669 enable_languages="${LANGUAGES}"
1670 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1672 enable_languages=all
1675 if test x"${enable_languages}" = x ||
1676 test x"${enable_languages}" = xyes;
1678 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1682 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1684 # 'f95' is the old name for the 'fortran' language. We issue a warning
1685 # and make the substitution.
1686 case ,${enable_languages}, in
1688 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1689 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1693 # If bootstrapping, C++ must be enabled.
1694 case ",$enable_languages,:$enable_bootstrap" in
1697 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1698 enable_languages="${enable_languages},c++"
1700 AC_MSG_ERROR([bootstrapping requires c++ sources])
1705 # First scan to see if an enabled language requires some other language.
1706 # We assume that a given config-lang.in will list all the language
1707 # front ends it requires, even if some are required indirectly.
1708 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1709 case ${lang_frag} in
1711 # The odd quoting in the next line works around
1712 # an apparent bug in bash 1.12 on linux.
1713 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1715 # From the config-lang.in, get $language, $lang_requires, and
1716 # $lang_requires_boot_languages.
1719 lang_requires_boot_languages=
1721 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1722 case ,${enable_languages}, in
1726 echo " \`$other' language required by \`$language'; enabling" 1>&2
1727 enable_languages="${enable_languages},${other}"
1731 for other in ${lang_requires_boot_languages} ; do
1732 if test "$other" != "c"; then
1733 case ,${enable_stage1_languages}, in
1737 case ,${enable_languages}, in
1739 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1740 enable_stage1_languages="$enable_stage1_languages,${other}"
1751 new_enable_languages=,c,
1753 # If LTO is enabled, add the LTO front end.
1754 if test "$enable_lto" = "yes" ; then
1755 case ,${enable_languages}, in
1757 *) enable_languages="${enable_languages},lto" ;;
1759 if test "${build_lto_plugin}" = "yes" ; then
1760 configdirs="$configdirs lto-plugin"
1764 # If we're building an offloading compiler, add the LTO front end.
1765 if test x"$enable_as_accelerator_for" != x ; then
1766 case ,${enable_languages}, in
1768 *) enable_languages="${enable_languages},lto" ;;
1772 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1773 potential_languages=,c,
1775 enabled_target_libs=
1776 disabled_target_libs=
1778 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1779 case ${lang_frag} in
1781 # The odd quoting in the next line works around
1782 # an apparent bug in bash 1.12 on linux.
1783 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1785 # From the config-lang.in, get $language, $target_libs,
1786 # $lang_dirs, $boot_language, and $build_by_default
1792 build_by_default=yes
1794 if test x${language} = x; then
1795 echo "${lang_frag} doesn't set \$language." 1>&2
1799 if test "$language" = "c++"; then
1804 case ,${enable_languages}, in
1806 # Language was explicitly selected; include it
1807 # unless it is C, which is enabled by default.
1808 if test "$language" != "c"; then
1813 # 'all' was selected, select it if it is a default language
1814 if test "$language" != "c"; then
1815 add_this_lang=${build_by_default}
1820 # Disable languages that need other directories if these aren't available.
1821 for i in $subdir_requires; do
1822 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1823 case ,${enable_languages}, in
1825 # Specifically requested language; tell them.
1826 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1830 add_this_lang=unsupported
1835 # Disable Ada if no preexisting GNAT is available.
1836 case ,${enable_languages},:${language}:${have_gnat} in
1837 *,${language},*:ada:no)
1838 # Specifically requested language; tell them.
1839 AC_MSG_ERROR([GNAT is required to build $language])
1843 add_this_lang=unsupported
1847 # Disable a language that is unsupported by the target.
1848 case " $unsupported_languages " in
1850 add_this_lang=unsupported
1854 case $add_this_lang in
1856 # Remove language-dependent dirs.
1857 disabled_target_libs="$disabled_target_libs $target_libs"
1858 noconfigdirs="$noconfigdirs $lang_dirs"
1861 # Remove language-dependent dirs; still show language as supported.
1862 disabled_target_libs="$disabled_target_libs $target_libs"
1863 noconfigdirs="$noconfigdirs $lang_dirs"
1864 potential_languages="${potential_languages}${language},"
1867 new_enable_languages="${new_enable_languages}${language},"
1868 potential_languages="${potential_languages}${language},"
1869 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1870 enabled_target_libs="$enabled_target_libs $target_libs"
1871 case "${boot_language}:,$enable_stage1_languages," in
1872 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
1873 # Add to (comma-separated) list of stage 1 languages.
1874 case ",$stage1_languages," in
1875 *,$language,* | ,yes, | ,all,) ;;
1876 *) stage1_languages="${stage1_languages}${language}," ;;
1878 # We need to bootstrap any supporting libraries.
1879 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
1888 # Add target libraries which are only needed for disabled languages
1890 if test -n "$disabled_target_libs"; then
1891 for dir in $disabled_target_libs; do
1892 case " $enabled_target_libs " in
1894 *) noconfigdirs="$noconfigdirs $dir" ;;
1899 AC_ARG_ENABLE(stage1-languages,
1900 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
1901 [choose additional languages to build during
1902 stage1. Mostly useful for compiler development])],
1903 [case ,${enable_stage1_languages}, in
1905 # Set it to something that will have no effect in the loop below
1906 enable_stage1_languages=c ;;
1908 enable_stage1_languages=`echo $new_enable_languages | \
1909 sed -e "s/^,//" -e "s/,$//" ` ;;
1911 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
1912 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
1915 # Add "good" languages from enable_stage1_languages to stage1_languages,
1916 # while "bad" languages go in missing_languages. Leave no duplicates.
1917 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
1918 case $potential_languages in
1920 case $stage1_languages in
1922 *) stage1_languages="$stage1_languages$i," ;;
1925 case $missing_languages in
1927 *) missing_languages="$missing_languages$i," ;;
1932 # Remove leading/trailing commas that were added for simplicity
1933 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
1934 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1935 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
1936 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
1938 if test "x$missing_languages" != x; then
1940 The following requested languages could not be built: ${missing_languages}
1941 Supported languages are: ${potential_languages}])
1943 if test "x$new_enable_languages" != "x$enable_languages"; then
1944 echo The following languages will be built: ${new_enable_languages}
1945 enable_languages="$new_enable_languages"
1948 AC_SUBST(stage1_languages)
1949 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
1952 # Handle --disable-<component> generically.
1953 for dir in $configdirs $build_configdirs $target_configdirs ; do
1954 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1955 varname=`echo $dirname | sed -e s/+/_/g`
1956 if eval test x\${enable_${varname}} "=" xno ; then
1957 noconfigdirs="$noconfigdirs $dir"
1961 # Disable libcilkrts, libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
1962 case ,${enable_languages}, in
1964 # Disable libcilkrts, libitm, libsanitizer if we're not building libstdc++
1965 case "${noconfigdirs}" in
1966 *target-libstdc++-v3*)
1967 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer"
1973 noconfigdirs="$noconfigdirs target-libcilkrts target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
1977 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1978 # $build_configdirs and $target_configdirs.
1979 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1982 for dir in . $skipdirs $noconfigdirs ; do
1983 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1984 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1985 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1986 if test -r $srcdir/$dirname/configure ; then
1987 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1990 notsupp="$notsupp $dir"
1994 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1995 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1996 if test -r $srcdir/$dirname/configure ; then
1997 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2000 notsupp="$notsupp $dir"
2004 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2005 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2006 if test -r $srcdir/$dirname/configure ; then
2007 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2010 notsupp="$notsupp $dir"
2016 # Quietly strip out all directories which aren't configurable in this tree.
2017 # This relies on all configurable subdirectories being autoconfiscated, which
2019 build_configdirs_all="$build_configdirs"
2021 for i in ${build_configdirs_all} ; do
2022 j=`echo $i | sed -e s/build-//g`
2023 if test -f ${srcdir}/$j/configure ; then
2024 build_configdirs="${build_configdirs} $i"
2028 configdirs_all="$configdirs"
2030 for i in ${configdirs_all} ; do
2031 if test -f ${srcdir}/$i/configure ; then
2032 configdirs="${configdirs} $i"
2036 target_configdirs_all="$target_configdirs"
2038 for i in ${target_configdirs_all} ; do
2039 j=`echo $i | sed -e s/target-//g`
2040 if test -f ${srcdir}/$j/configure ; then
2041 target_configdirs="${target_configdirs} $i"
2045 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2046 # so we have to add it after the preceding checks.
2047 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2049 case " $configdirs " in
2051 # If we can build libiberty, we can also build libiberty-linker-plugin.
2052 configdirs="$configdirs libiberty-linker-plugin"
2053 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2054 --with-libiberty=../libiberty-linker-plugin";;
2056 AC_MSG_ERROR([libiberty missing]);;
2060 # Sometimes we have special requirements for the host libiberty.
2061 extra_host_libiberty_configure_flags=
2062 extra_host_zlib_configure_flags=
2063 case " $configdirs " in
2064 *" lto-plugin "* | *" libcc1 "*)
2065 # When these are to be built as shared libraries, the same applies to
2067 extra_host_libiberty_configure_flags=--enable-shared
2070 # When bfd is to be built as a shared library, the same applies to
2072 if test "$enable_shared" = "yes"; then
2073 extra_host_zlib_configure_flags=--enable-host-shared
2077 AC_SUBST(extra_host_libiberty_configure_flags)
2078 AC_SUBST(extra_host_zlib_configure_flags)
2080 # Produce a warning message for the subdirs we can't configure.
2081 # This isn't especially interesting in the Cygnus tree, but in the individual
2082 # FSF releases, it's important to let people know when their machine isn't
2083 # supported by the one or two programs in a package.
2085 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2086 # If $appdirs is non-empty, at least one of those directories must still
2087 # be configured, or we error out. (E.g., if the gas release supports a
2088 # specified target in some subdirs but not the gas subdir, we shouldn't
2089 # pretend that all is well.)
2090 if test -n "$appdirs" ; then
2091 for dir in $appdirs ; do
2092 if test -r $dir/Makefile.in ; then
2093 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2097 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2103 if test -n "$appdirs" ; then
2104 echo "*** This configuration is not supported by this package." 1>&2
2108 # Okay, some application will build, or we don't care to check. Still
2109 # notify of subdirs not getting built.
2110 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2111 echo " ${notsupp}" 1>&2
2112 echo " (Any other directories should still work fine.)" 1>&2
2120 # To find our prefix, in gcc_cv_tool_prefix.
2125 AC_ARG_WITH([build-sysroot],
2126 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2127 [use sysroot as the system root during the build])],
2128 [if test x"$withval" != x ; then
2129 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2131 [SYSROOT_CFLAGS_FOR_TARGET=])
2132 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2134 AC_ARG_WITH([debug-prefix-map],
2135 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2136 [map A to B, C to D ... in debug information])],
2137 [if test x"$withval" != x; then
2138 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2139 for debug_map in $withval; do
2140 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2143 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2144 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2146 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2147 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2148 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2149 # We want to ensure that TARGET libraries (which we know are built with
2150 # gcc) are built with "-O2 -g", so include those options when setting
2151 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2152 if test "x$CFLAGS_FOR_TARGET" = x; then
2153 if test "x${is_cross_compiler}" = xyes; then
2154 CFLAGS_FOR_TARGET="-g -O2"
2156 CFLAGS_FOR_TARGET=$CFLAGS
2159 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2162 *" -g "* | *" -g3 "*) ;;
2163 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2167 AC_SUBST(CFLAGS_FOR_TARGET)
2169 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2170 if test "x${is_cross_compiler}" = xyes; then
2171 CXXFLAGS_FOR_TARGET="-g -O2"
2173 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2174 case " $CXXFLAGS " in
2176 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2178 case " $CXXFLAGS " in
2179 *" -g "* | *" -g3 "*) ;;
2180 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2184 AC_SUBST(CXXFLAGS_FOR_TARGET)
2186 AC_SUBST(LDFLAGS_FOR_TARGET)
2188 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2189 # the named directory are copied to $(tooldir)/sys-include.
2190 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2191 if test x${is_cross_compiler} = xno ; then
2192 echo 1>&2 '***' --with-headers is only supported when cross compiling
2195 if test x"${with_headers}" != xyes ; then
2196 x=${gcc_cv_tool_prefix}
2197 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2201 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2202 # the name directories are copied to $(tooldir)/lib. Multiple directories
2204 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2205 if test x${is_cross_compiler} = xno ; then
2206 echo 1>&2 '***' --with-libs is only supported when cross compiling
2209 if test x"${with_libs}" != xyes ; then
2210 # Copy the libraries in reverse order, so that files in the first named
2211 # library override files in subsequent libraries.
2212 x=${gcc_cv_tool_prefix}
2213 for l in ${with_libs}; do
2214 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2219 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2221 # This is done by determining whether or not the appropriate directory
2222 # is available, and by checking whether or not specific configurations
2223 # have requested that this magic not happen.
2225 # The command line options always override the explicit settings in
2226 # configure.ac, and the settings in configure.ac override this magic.
2228 # If the default for a toolchain is to use GNU as and ld, and you don't
2229 # want to do that, then you should use the --without-gnu-as and
2230 # --without-gnu-ld options for the configure script. Similarly, if
2231 # the default is to use the included zlib and you don't want to do that,
2232 # you should use the --with-system-zlib option for the configure script.
2234 if test x${use_gnu_as} = x &&
2235 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2237 extra_host_args="$extra_host_args --with-gnu-as"
2240 if test x${use_gnu_ld} = x &&
2241 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2243 extra_host_args="$extra_host_args --with-gnu-ld"
2246 if test x${use_included_zlib} = x &&
2247 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2250 with_system_zlib=yes
2251 extra_host_args="$extra_host_args --with-system-zlib"
2254 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2255 # can detect this case.
2257 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2259 extra_host_args="$extra_host_args --with-newlib"
2262 # Handle ${copy_dirs}
2263 set fnord ${copy_dirs}
2265 while test $# != 0 ; do
2266 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2269 echo Copying $1 to $2
2271 # Use the install script to create the directory and all required
2272 # parent directories.
2273 if test -d $2 ; then
2277 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2280 # Copy the directory, assuming we have tar.
2281 # FIXME: Should we use B in the second tar? Not all systems support it.
2282 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2284 # It is the responsibility of the user to correctly adjust all
2285 # symlinks. If somebody can figure out how to handle them correctly
2286 # here, feel free to add the code.
2293 # Determine a target-dependent exec_prefix that the installed
2294 # gcc will search in. Keep this list sorted by triplet, with
2295 # the *-*-osname triplets last.
2298 i[[34567]]86-pc-msdosdjgpp*)
2299 md_exec_prefix=/dev/env/DJDIR/bin
2304 md_exec_prefix=/usr/ccs/bin
2308 extra_arflags_for_target=
2309 extra_nmflags_for_target=
2310 extra_ranlibflags_for_target=
2311 target_makefile_frag=/dev/null
2314 target_makefile_frag="config/mt-spu"
2316 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2317 target_makefile_frag="config/mt-sde"
2319 mipsisa*-*-elfoabi*)
2320 target_makefile_frag="config/mt-mips-elfoabi"
2322 mips*-*-*linux* | mips*-*-gnu*)
2323 target_makefile_frag="config/mt-mips-gnu"
2326 target_makefile_frag="config/mt-nios2-elf"
2328 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2329 target_makefile_frag="config/mt-gnu"
2331 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2332 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2333 # commands to handle both 32-bit and 64-bit objects. These flags are
2334 # harmless if we're using GNU nm or ar.
2335 extra_arflags_for_target=" -X32_64"
2336 extra_nmflags_for_target=" -B -X32_64"
2340 alphaieee_frag=/dev/null
2343 # This just makes sure to use the -mieee option to build target libs.
2344 # This should probably be set individually by each library.
2345 alphaieee_frag="config/mt-alphaieee"
2349 # If --enable-target-optspace always use -Os instead of -O2 to build
2350 # the target libraries, similarly if it is not specified, use -Os
2351 # on selected platforms.
2352 ospace_frag=/dev/null
2353 case "${enable_target_optspace}:${target}" in
2355 ospace_frag="config/mt-ospace"
2358 ospace_frag="config/mt-d30v"
2360 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2361 ospace_frag="config/mt-ospace"
2366 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2370 # Some systems (e.g., one of the i386-aix systems the gas testers are
2371 # using) don't handle "\$" correctly, so don't use it here.
2372 tooldir='${exec_prefix}'/${target_noncanonical}
2373 build_tooldir=${tooldir}
2375 # Create a .gdbinit file which runs the one in srcdir
2376 # and tells GDB to look there for source files.
2378 if test -r ${srcdir}/.gdbinit ; then
2381 *) cat > ./.gdbinit <<EOF
2385 source ${srcdir}/.gdbinit
2391 # Make sure that the compiler is able to generate an executable. If it
2392 # can't, we are probably in trouble. We don't care whether we can run the
2393 # executable--we might be using a cross compiler--we only care whether it
2394 # can be created. At this point the main configure script has set CC.
2396 echo "int main () { return 0; }" > conftest.c
2397 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2398 if test $? = 0 ; then
2399 if test -s conftest || test -s conftest.exe ; then
2405 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2406 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2413 # Decide which environment variable is used to find dynamic libraries.
2415 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2416 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2417 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2418 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2421 # On systems where the dynamic library environment variable is PATH,
2422 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2423 # built executables to PATH.
2424 if test "$RPATH_ENVVAR" = PATH; then
2425 GCC_SHLIB_SUBDIR=/shlib
2430 # Adjust the toplevel makefile according to whether bootstrap was selected.
2431 case $enable_bootstrap in
2433 bootstrap_suffix=bootstrap
2434 BUILD_CONFIG=bootstrap-debug
2437 bootstrap_suffix=no-bootstrap
2442 AC_MSG_CHECKING(for default BUILD_CONFIG)
2444 AC_ARG_WITH([build-config],
2445 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2446 [use config/NAME.mk build configuration])],
2447 [case $with_build_config in
2448 yes) with_build_config= ;;
2449 no) with_build_config= BUILD_CONFIG= ;;
2452 if test "x${with_build_config}" != x; then
2453 BUILD_CONFIG=$with_build_config
2455 case $BUILD_CONFIG in
2457 if echo "int f (void) { return 0; }" > conftest.c &&
2458 ${CC} -c conftest.c &&
2459 mv conftest.o conftest.o.g0 &&
2460 ${CC} -c -g conftest.c &&
2461 mv conftest.o conftest.o.g &&
2462 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2467 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2471 AC_MSG_RESULT($BUILD_CONFIG)
2472 AC_SUBST(BUILD_CONFIG)
2474 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2475 AC_MSG_CHECKING([for --enable-vtable-verify])
2476 AC_ARG_ENABLE(vtable-verify,
2477 [AS_HELP_STRING([--enable-vtable-verify],
2478 [Enable vtable verification feature])],
2479 [case "$enableval" in
2480 yes) enable_vtable_verify=yes ;;
2481 no) enable_vtable_verify=no ;;
2482 *) enable_vtable_verify=no;;
2484 [enable_vtable_verify=no])
2485 AC_MSG_RESULT($enable_vtable_verify)
2487 # Record target_configdirs and the configure arguments for target and
2488 # build configuration in Makefile.
2489 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2490 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2491 bootstrap_fixincludes=no
2493 # If we are building libgomp, bootstrap it.
2494 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2495 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2498 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2499 # or bootstrap-ubsan, bootstrap it.
2500 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2501 case "$BUILD_CONFIG" in
2502 *bootstrap-asan* | *bootstrap-ubsan* )
2503 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2504 bootstrap_fixincludes=yes
2509 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2510 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2511 test "$enable_vtable_verify" != no; then
2512 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2515 # If we are building libmpx, bootstrap it.
2516 if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then
2517 bootstrap_target_libs=${bootstrap_target_libs}target-libmpx,
2520 # Determine whether gdb needs tk/tcl or not.
2521 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2522 # and in that case we want gdb to be built without tk. Ugh!
2523 # In fact I believe gdb is the *only* package directly dependent on tk,
2524 # so we should be able to put the 'maybe's in unconditionally and
2525 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2526 # 100% sure that that's safe though.
2528 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2529 case "$enable_gdbtk" in
2533 GDB_TK="${gdb_tk}" ;;
2535 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2536 # distro. Eventually someone will fix this and move Insight, nee
2537 # gdbtk to a separate directory.
2538 if test -d ${srcdir}/gdb/gdbtk ; then
2545 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2546 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2548 # Strip out unwanted targets.
2550 # While at that, we remove Makefiles if we were started for recursive
2551 # configuration, so that the top-level Makefile reconfigures them,
2552 # like we used to do when configure itself was recursive.
2554 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2555 # but now we're fixing up the Makefile ourselves with the additional
2556 # commands passed to AC_CONFIG_FILES. Use separate variables
2557 # extrasub-{build,host,target} not because there is any reason to split
2558 # the substitutions up that way, but only to remain below the limit of
2559 # 99 commands in a script, for HP-UX sed.
2560 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2562 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2563 yes:yes:*\ gold\ *:*,c++,*) ;;
2564 yes:yes:*\ gold\ *:*)
2565 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2570 for module in ${build_configdirs} ; do
2571 if test -z "${no_recursion}" \
2572 && test -f ${build_subdir}/${module}/Makefile; then
2573 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2574 rm -f ${build_subdir}/${module}/Makefile
2576 extrasub_build="$extrasub_build
2577 /^@if build-$module\$/d
2578 /^@endif build-$module\$/d
2579 /^@if build-$module-$bootstrap_suffix\$/d
2580 /^@endif build-$module-$bootstrap_suffix\$/d"
2583 for module in ${configdirs} ; do
2584 if test -z "${no_recursion}"; then
2585 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2586 if test -f ${file}; then
2587 echo 1>&2 "*** removing ${file} to force reconfigure"
2592 case ${module},${bootstrap_fixincludes} in
2593 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2594 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2596 extrasub_host="$extrasub_host
2598 /^@endif $module\$/d
2599 /^@if $module-$host_bootstrap_suffix\$/d
2600 /^@endif $module-$host_bootstrap_suffix\$/d"
2603 for module in ${target_configdirs} ; do
2604 if test -z "${no_recursion}" \
2605 && test -f ${target_subdir}/${module}/Makefile; then
2606 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2607 rm -f ${target_subdir}/${module}/Makefile
2610 # We only bootstrap target libraries listed in bootstrap_target_libs.
2611 case $bootstrap_target_libs in
2612 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2613 *) target_bootstrap_suffix=no-bootstrap ;;
2616 extrasub_target="$extrasub_target
2617 /^@if target-$module\$/d
2618 /^@endif target-$module\$/d
2619 /^@if target-$module-$target_bootstrap_suffix\$/d
2620 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2623 # Do the final fixup along with target modules.
2624 extrasub_target="$extrasub_target
2625 /^@if /,/^@endif /d"
2627 # Create the serialization dependencies. This uses a temporary file.
2629 AC_ARG_ENABLE([serial-configure],
2630 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2631 [force sequential configuration of
2632 sub-packages for the host, target or build
2633 machine, or all sub-packages])])
2635 case ${enable_serial_configure} in
2637 enable_serial_build_configure=yes
2638 enable_serial_host_configure=yes
2639 enable_serial_target_configure=yes
2643 # These force 'configure's to be done one at a time, to avoid problems
2644 # with contention over a shared config.cache.
2646 echo '# serdep.tmp' > serdep.tmp
2648 test "x${enable_serial_build_configure}" = xyes &&
2649 for item in ${build_configdirs} ; do
2652 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2657 test "x${enable_serial_host_configure}" = xyes &&
2658 for item in ${configdirs} ; do
2661 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2666 test "x${enable_serial_target_configure}" = xyes &&
2667 for item in ${target_configdirs} ; do
2670 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2674 serialization_dependencies=serdep.tmp
2675 AC_SUBST_FILE(serialization_dependencies)
2677 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2678 # target, nonopt, and variable assignments. These are the ones we
2679 # might not want to pass down to subconfigures. The exception being
2680 # --cache-file=/dev/null, which is used to turn off the use of cache
2681 # files altogether, and which should be passed on to subconfigures.
2682 # Also strip program-prefix, program-suffix, and program-transform-name,
2683 # so that we can pass down a consistent program-transform-name.
2688 eval "set -- $ac_configure_args"
2691 if test X"$skip_next" = X"yes"; then
2695 if test X"$keep_next" = X"yes"; then
2698 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2700 baseargs="$baseargs '$ac_arg'"
2701 tbaseargs="$tbaseargs '$ac_arg'"
2706 # Handle separated arguments. Based on the logic generated by
2709 *=* | --config-cache | -C | -disable-* | --disable-* \
2710 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2711 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2712 | -with-* | --with-* | -without-* | --without-* | --x)
2726 --with-* | --without-*)
2727 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2731 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2734 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2743 mpc | mpfr | gmp | isl)
2744 # If we're processing --with-$lib, --with-$lib-include or
2745 # --with-$lib-lib, for one of the libs above, and target is
2746 # different from host, don't pass the current argument to any
2747 # target library's configure.
2748 if test x$is_cross_compiler = xyes; then
2757 --cache-file=/dev/null | \
2758 -cache-file=/dev/null )
2759 # Handled here to avoid the test to skip args below.
2760 baseargs="$baseargs '$ac_arg'"
2761 tbaseargs="$tbaseargs '$ac_arg'"
2762 # Assert: $separate_arg should always be no.
2763 keep_next=$separate_arg
2779 -program-prefix* | \
2780 -program-suffix* | \
2781 -program-transform-name* )
2782 skip_next=$separate_arg
2786 # An option. Add it.
2789 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2791 baseargs="$baseargs '$ac_arg'"
2792 if test X"$skip_targ" = Xno; then
2793 tbaseargs="$tbaseargs '$ac_arg'"
2795 keep_next=$separate_arg
2798 # Either a variable assignment, or a nonopt (triplet). Don't
2799 # pass it down; let the Makefile handle this.
2804 # Remove the initial space we just introduced and, as these will be
2805 # expanded by make, quote '$'.
2806 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2808 # Add in --program-transform-name, after --program-prefix and
2809 # --program-suffix have been applied to it. Autoconf has already
2810 # doubled dollar signs and backslashes in program_transform_name; we want
2811 # the backslashes un-doubled, and then the entire thing wrapped in single
2812 # quotes, because this will be expanded first by make and then by the shell.
2813 # Also, because we want to override the logic in subdir configure scripts to
2814 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2815 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2816 ${program_transform_name}
2818 gcc_transform_name=`cat conftestsed.out`
2819 rm -f conftestsed.out
2820 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2821 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
2822 if test "$silent" = yes; then
2823 baseargs="$baseargs --silent"
2824 tbaseargs="$tbaseargs --silent"
2826 baseargs="$baseargs --disable-option-checking"
2827 tbaseargs="$tbaseargs --disable-option-checking"
2829 # Record and document user additions to sub configure arguments.
2830 AC_ARG_VAR([build_configargs],
2831 [additional configure arguments for build directories])
2832 AC_ARG_VAR([host_configargs],
2833 [additional configure arguments for host directories])
2834 AC_ARG_VAR([target_configargs],
2835 [additional configure arguments for target directories])
2837 # For the build-side libraries, we just need to pretend we're native,
2838 # and not use the same cache file. Multilibs are neither needed nor
2839 # desired. We can't even use the same cache file for all build-side
2840 # libraries, as they're compiled differently; some with C, some with
2841 # C++ or with different feature-enabling options.
2842 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
2844 # For host modules, accept cache file option, or specification as blank.
2845 case "${cache_file}" in
2847 cache_file_option="" ;;
2848 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2849 cache_file_option="--cache-file=${cache_file}" ;;
2851 cache_file_option="--cache-file=../${cache_file}" ;;
2854 # Host dirs don't like to share a cache file either, horribly enough.
2855 # This seems to be due to autoconf 2.5x stupidity.
2856 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
2858 target_configargs="$target_configargs ${tbaseargs}"
2860 # Passing a --with-cross-host argument lets the target libraries know
2861 # whether they are being built with a cross-compiler or being built
2862 # native. However, it would be better to use other mechanisms to make the
2863 # sorts of decisions they want to make on this basis. Please consider
2864 # this option to be deprecated. FIXME.
2865 if test x${is_cross_compiler} = xyes ; then
2866 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
2869 # Special user-friendly check for native x86_64-linux build, if
2870 # multilib is not explicitly enabled.
2871 case "$target:$have_compiler:$host:$target:$enable_multilib" in
2872 x86_64-*linux*:yes:$build:$build:)
2873 # Make sure we have a development environment that handles 32-bit
2875 echo "int main () { return 0; }" > conftest.c
2876 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2877 if test $? = 0 ; then
2878 if test -s conftest || test -s conftest.exe ; then
2883 if test x${dev64} != xyes ; then
2884 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.])
2889 # Default to --enable-multilib.
2890 if test x${enable_multilib} = x ; then
2891 target_configargs="--enable-multilib ${target_configargs}"
2894 # Pass --with-newlib if appropriate. Note that target_configdirs has
2895 # changed from the earlier setting of with_newlib.
2896 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2897 target_configargs="--with-newlib ${target_configargs}"
2900 # Different target subdirs use different values of certain variables
2901 # (notably CXX). Worse, multilibs use *lots* of different values.
2902 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2903 # it doesn't automatically accept command-line overrides of them.
2904 # This means it's not safe for target subdirs to share a cache file,
2905 # which is disgusting, but there you have it. Hopefully this can be
2906 # fixed in future. It's still worthwhile to use a cache file for each
2907 # directory. I think.
2909 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2910 # We need to pass --target, as newer autoconf's requires consistency
2911 # for target_alias and gcc doesn't manage it consistently.
2912 target_configargs="--cache-file=./config.cache ${target_configargs}"
2915 case " $target_configdirs " in
2917 case " $target_configargs " in
2918 *" --with-newlib "*)
2921 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
2925 # If we're not building GCC, don't discard standard headers.
2926 if test -d ${srcdir}/gcc; then
2927 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2929 if test "${build}" != "${host}"; then
2930 # On Canadian crosses, CC_FOR_TARGET will have already been set
2931 # by `configure', so we won't have an opportunity to add -Bgcc/
2932 # to it. This is right: we don't want to search that directory
2933 # for binaries, but we want the header files in there, so add
2935 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
2937 # Someone might think of using the pre-installed headers on
2938 # Canadian crosses, in case the installed compiler is not fully
2939 # compatible with the compiler being built. In this case, it
2940 # would be better to flag an error than risking having
2941 # incompatible object files being constructed. We can't
2942 # guarantee that an error will be flagged, but let's hope the
2943 # compiler will do it, when presented with incompatible header
2948 case "${target}-${is_cross_compiler}" in
2949 i[[3456789]]86-*-linux*-no)
2950 # Here host == target, so we don't need to build gcc,
2951 # so we don't want to discard standard headers.
2952 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2955 # If we're building newlib, use its generic headers last, but search
2956 # for any libc-related directories first (so make it the last -B
2958 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2960 # If we're building libgloss, find the startup file, simulator library
2961 # and linker script.
2962 case " $target_configdirs " in
2964 # Look for startup file, simulator library and maybe linker script.
2965 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
2966 # Look for libnosys.a in case the target needs it.
2967 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2968 # Most targets have the linker script in the source directory.
2969 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
2980 x86_64-*mingw* | *-w64-mingw*)
2981 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
2982 # however, use a symlink named 'mingw' in ${prefix} .
2983 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
2986 # MinGW can't be handled as Cygwin above since it does not use newlib.
2987 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
2991 # Allow the user to override the flags for
2992 # our build compiler if desired.
2993 if test x"${build}" = x"${host}" ; then
2994 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2995 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
2996 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
2999 # On Canadian crosses, we'll be searching the right directories for
3000 # the previously-installed cross compiler, so don't bother to add
3001 # flags for directories within the install tree of the compiler
3002 # being built; programs in there won't even run.
3003 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3004 # Search for pre-installed headers if nothing else fits.
3005 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3008 if test "x${use_gnu_ld}" = x &&
3009 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3010 # Arrange for us to find uninstalled linker scripts.
3011 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3014 # Search for other target-specific linker scripts and such.
3017 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3021 # Makefile fragments.
3022 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3024 eval fragval=\$$frag
3025 if test $fragval != /dev/null; then
3026 eval $frag=${srcdir}/$fragval
3029 AC_SUBST_FILE(host_makefile_frag)
3030 AC_SUBST_FILE(target_makefile_frag)
3031 AC_SUBST_FILE(alphaieee_frag)
3032 AC_SUBST_FILE(ospace_frag)
3034 # Miscellanea: directories, flags, etc.
3035 AC_SUBST(RPATH_ENVVAR)
3036 AC_SUBST(GCC_SHLIB_SUBDIR)
3038 AC_SUBST(build_tooldir)
3039 AC_SUBST(CONFIGURE_GDB_TK)
3041 AC_SUBST(INSTALL_GDB_TK)
3043 # Build module lists & subconfigure args.
3044 AC_SUBST(build_configargs)
3045 AC_SUBST(build_configdirs)
3047 # Host module lists & subconfigure args.
3048 AC_SUBST(host_configargs)
3049 AC_SUBST(configdirs)
3050 AC_SUBST(target_configdirs)
3052 # Target module lists & subconfigure args.
3053 AC_SUBST(target_configargs)
3057 AC_SUBST(AR_FOR_BUILD)
3058 AC_SUBST(AS_FOR_BUILD)
3059 AC_SUBST(CC_FOR_BUILD)
3060 AC_SUBST(CFLAGS_FOR_BUILD)
3061 AC_SUBST(CXXFLAGS_FOR_BUILD)
3062 AC_SUBST(CXX_FOR_BUILD)
3063 AC_SUBST(DLLTOOL_FOR_BUILD)
3064 AC_SUBST(GCJ_FOR_BUILD)
3065 AC_SUBST(GFORTRAN_FOR_BUILD)
3066 AC_SUBST(GOC_FOR_BUILD)
3067 AC_SUBST(LDFLAGS_FOR_BUILD)
3068 AC_SUBST(LD_FOR_BUILD)
3069 AC_SUBST(NM_FOR_BUILD)
3070 AC_SUBST(RANLIB_FOR_BUILD)
3071 AC_SUBST(WINDMC_FOR_BUILD)
3072 AC_SUBST(WINDRES_FOR_BUILD)
3074 # Generate default definitions for YACC, M4, LEX and other programs that run
3075 # on the build machine. These are used if the Makefile can't locate these
3076 # programs in objdir.
3077 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3079 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3080 case " $build_configdirs " in
3081 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3084 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3085 case " $build_configdirs " in
3086 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3089 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3090 case " $build_configdirs " in
3091 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3094 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3095 case " $build_configdirs " in
3096 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3097 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3100 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3101 case " $build_configdirs " in
3102 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3105 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3106 case " $build_configdirs " in
3107 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3110 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3111 # higher, else we use the "missing" dummy.
3112 if ${MAKEINFO} --version \
3113 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3116 MAKEINFO="$MISSING makeinfo"
3122 # FIXME: expect and dejagnu may become build tools?
3124 AC_CHECK_PROGS(EXPECT, expect, expect)
3125 case " $configdirs " in
3127 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3131 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3132 case " $configdirs " in
3134 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3140 NCN_STRICT_CHECK_TOOLS(AR, ar)
3141 NCN_STRICT_CHECK_TOOLS(AS, as)
3142 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3143 NCN_STRICT_CHECK_TOOLS(LD, ld)
3144 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3145 NCN_STRICT_CHECK_TOOLS(NM, nm)
3146 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3147 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3148 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3149 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3150 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3151 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3152 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3159 AC_ARG_WITH([build-time-tools],
3160 [AS_HELP_STRING([--with-build-time-tools=PATH],
3161 [use given path to find target tools during the build])],
3162 [case x"$withval" in
3165 with_build_time_tools=
3166 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3169 [with_build_time_tools=])
3171 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3172 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3173 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3174 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3175 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3176 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3178 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3179 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3180 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3181 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3182 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3183 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3184 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3185 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3186 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3187 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3188 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3189 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3190 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3192 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3194 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3195 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3196 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3197 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3198 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3199 [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],
3201 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3202 [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],
3204 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3205 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3206 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3207 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3208 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3209 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3210 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3211 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3212 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3213 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3214 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3215 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3216 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3217 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3218 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3219 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3221 AC_SUBST(FLAGS_FOR_TARGET)
3222 AC_SUBST(RAW_CXX_FOR_TARGET)
3224 # Certain tools may need extra flags.
3225 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3226 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3227 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3229 # When building target libraries, except in a Canadian cross, we use
3230 # the same toolchain as the compiler we just built.
3231 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3232 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3233 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3234 if test $host = $build; then
3235 case " $configdirs " in
3237 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3238 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3239 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3244 AC_SUBST(COMPILER_AS_FOR_TARGET)
3245 AC_SUBST(COMPILER_LD_FOR_TARGET)
3246 AC_SUBST(COMPILER_NM_FOR_TARGET)
3248 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3249 AC_ARG_ENABLE(maintainer-mode,
3250 [AS_HELP_STRING([--enable-maintainer-mode],
3251 [enable make rules and dependencies not useful
3252 (and sometimes confusing) to the casual installer])],
3253 USE_MAINTAINER_MODE=$enableval,
3254 USE_MAINTAINER_MODE=no)
3255 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3256 AC_SUBST(MAINTAINER_MODE_TRUE)
3257 AC_SUBST(MAINTAINER_MODE_FALSE)
3258 if test "$USE_MAINTAINER_MODE" = yes; then
3259 MAINTAINER_MODE_TRUE=
3260 MAINTAINER_MODE_FALSE='#'
3262 MAINTAINER_MODE_TRUE='#'
3263 MAINTAINER_MODE_FALSE=
3265 MAINT=$MAINTAINER_MODE_TRUE
3268 # ---------------------
3269 # GCC bootstrap support
3270 # ---------------------
3272 # Stage specific cflags for build.
3277 yes) stage1_cflags="-g -Wa,-J" ;;
3278 *) stage1_cflags="-g -J" ;;
3282 AC_SUBST(stage1_cflags)
3284 # Enable --enable-checking in stage1 of the compiler.
3285 AC_ARG_ENABLE(stage1-checking,
3286 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3287 [choose additional checking for stage1 of the compiler])],
3288 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3289 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3290 # For --disable-checking or implicit --enable-checking=release, avoid
3291 # setting --enable-checking=gc in the default stage1 checking for LTO
3292 # bootstraps. See PR62077.
3293 case $BUILD_CONFIG in
3295 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3297 stage1_checking=--enable-checking=yes,types;;
3299 if test "x$enable_checking" = x && \
3300 test -d ${srcdir}/gcc && \
3301 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3302 stage1_checking=--enable-checking=yes,types,extra
3305 stage1_checking=--enable-checking=$enable_checking,types
3307 AC_SUBST(stage1_checking)
3309 # Enable -Werror in bootstrap stage2 and later.
3310 AC_ARG_ENABLE(werror,
3311 [AS_HELP_STRING([--enable-werror],
3312 [enable -Werror in bootstrap stage2 and later])], [],
3313 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3318 case ${enable_werror} in
3319 yes) stage2_werror_flag="--enable-werror-always" ;;
3320 *) stage2_werror_flag="" ;;
3322 AC_SUBST(stage2_werror_flag)
3324 # Enable --enable-host-shared.
3325 AC_ARG_ENABLE(host-shared,
3326 [AS_HELP_STRING([--enable-host-shared],
3327 [build host code as shared libraries])],
3328 [host_shared=$enableval], [host_shared=no])
3329 AC_SUBST(host_shared)
3331 # PR jit/64780: Require the user to explicitly specify
3332 # --enable-host-shared if the jit is enabled, hinting
3333 # that they might want to do a separate configure/build of
3334 # the jit, to avoid users from slowing down the rest of the
3335 # compiler by enabling the jit.
3336 if test ${host_shared} = "no" ; then
3337 case "${enable_languages}" in
3340 Enabling language "jit" requires --enable-host-shared.
3342 --enable-host-shared typically slows the rest of the compiler down by
3343 a few %, so you must explicitly enable it.
3345 If you want to build both the jit and the regular compiler, it is often
3346 best to do this via two separate configure/builds, in separate
3347 directories, to avoid imposing the performance cost of
3348 --enable-host-shared on the regular compiler.])
3355 # Specify what files to not compare during bootstrap.
3357 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3359 hppa*64*-*-hpux*) ;;
3360 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
3361 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3363 AC_SUBST(compare_exclusions)
3365 AC_CONFIG_FILES([Makefile],
3366 [sed "$extrasub_build" Makefile |
3367 sed "$extrasub_host" |
3368 sed "$extrasub_target" > mf$$
3369 mv -f mf$$ Makefile],
3370 [extrasub_build="$extrasub_build"
3371 extrasub_host="$extrasub_host"
3372 extrasub_target="$extrasub_target"])
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