1 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
2 # 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
3 # 2014, 2015, 2016, 2019, 2022 Free Software Foundation, Inc.
5 # This file is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; see the file COPYING3. If not see
17 # <http://www.gnu.org/licenses/>.
19 ##############################################################################
20 ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
22 m4_include(config/acx.m4)
23 m4_include(config/override.m4)
24 m4_include(config/proginstall.m4)
25 m4_include(config/elf.m4)
26 m4_include(config/gcc-plugin.m4)
27 m4_include(config/ax_cxx_compile_stdcxx.m4)
28 m4_include([libtool.m4])
29 m4_include([ltoptions.m4])
30 m4_include([ltsugar.m4])
31 m4_include([ltversion.m4])
32 m4_include([lt~obsolete.m4])
33 m4_include([config/isl.m4])
35 AC_INIT(move-if-change)
36 AC_DISABLE_OPTION_CHECKING
39 # if PWD already has a value, it is probably wrong.
40 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
42 # Export original configure arguments for use by sub-configures.
43 # Quote arguments with shell meta charatcers.
44 TOPLEVEL_CONFIGURE_ARGUMENTS=
45 set -- "$progname" "$@"
49 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
50 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
51 # if the argument is of the form -foo=baz, quote the baz part only
52 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
55 # Add the quoted argument to the list.
56 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
58 if test "$silent" = yes; then
59 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
61 # Remove the initial space we just introduced and, as these will be
62 # expanded by make, quote '$'.
63 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
64 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
66 # Find the build, host, and target systems.
67 ACX_NONCANONICAL_BUILD
69 ACX_NONCANONICAL_TARGET
71 dnl Autoconf 2.5x and later will set a default program prefix if
72 dnl --target was used, even if it was the same as --host. Disable
73 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
75 test "$host_noncanonical" = "$target_noncanonical" &&
76 test "$program_prefix$program_suffix$program_transform_name" = \
78 program_transform_name=s,y,y,
83 m4_pattern_allow([^AS_FOR_TARGET$])dnl
84 m4_pattern_allow([^AS_FOR_BUILD$])dnl
86 # Get 'install' or 'install-sh' and its variants.
93 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
95 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
97 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
98 INSTALL="${srcpwd}/install-sh -c"
101 # Set srcdir to "." if that's what it is.
102 # This is important for multilib support.
104 if test "${pwd}" = "${srcpwd}" ; then
112 ### To add a new directory to the tree, first choose whether it is a target
113 ### or a host dependent tool. Then put it into the appropriate list
114 ### (library or tools, host or target), doing a dependency sort.
116 # Subdirs will be configured in the order listed in build_configdirs,
117 # configdirs, or target_configdirs; see the serialization section below.
119 # Dependency sorting is only needed when *configuration* must be done in
120 # a particular order. In all cases a dependency should be specified in
121 # the Makefile, whether or not it's implicitly specified here.
123 # Double entries in build_configdirs, configdirs, or target_configdirs may
124 # cause circular dependencies and break everything horribly.
126 # these library is used by various programs built for the build
129 build_libs="build-libiberty build-libcpp"
131 # these tools are built for the build environment
132 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
134 # these libraries are used by various programs built for the host environment
136 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf"
138 # these tools are built for the host environment
139 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
140 # know that we are building the simulator.
141 # binutils, gas and ld appear in that order because it makes sense to run
142 # "make check" in that particular order.
143 # If --enable-gold is used, "gold" may replace "ld".
144 host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools c++tools"
146 # these libraries are built for the target environment, and are built after
147 # the host libraries and the host tools (which may be a cross compiler)
148 # Note that libiberty is not a target library.
149 target_libraries="target-libgcc \
150 target-libbacktrace \
154 target-liboffloadmic \
157 target-libstdc++-v3 \
158 target-libsanitizer \
170 # these tools are built using the target libraries, and are intended to
171 # run only in the target environment
173 # note: any program that *uses* libraries that are in the "target_libraries"
174 # list belongs in this list.
176 target_tools="target-rda"
178 ################################################################################
180 ## All tools belong in one of the four categories, and are assigned above
181 ## We assign ${configdirs} this way to remove all embedded newlines. This
182 ## is important because configure will choke if they ever get through.
183 ## ${configdirs} is directories we build using the host tools.
184 ## ${target_configdirs} is directories we build using the target tools.
185 configdirs=`echo ${host_libs} ${host_tools}`
186 target_configdirs=`echo ${target_libraries} ${target_tools}`
187 build_configdirs=`echo ${build_libs} ${build_tools}`
189 m4_divert_text([PARSE_ARGS],
192 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
193 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
194 m4_popdef([AS_MESSAGE_LOG_FD])dnl
197 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
200 ################################################################################
202 srcname="gnu development package"
204 # This gets set non-empty for some net releases of packages.
207 # Define is_cross_compiler to save on calls to 'test'.
209 if test x"${host}" = x"${target}" ; then
212 is_cross_compiler=yes
215 # Find the build and target subdir names.
217 # Be sure to cover against remnants of an in-tree build.
218 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
219 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
220 Use a pristine source tree when building in a separate tree])
223 # Skipdirs are removed silently.
225 # Noconfigdirs are removed loudly.
229 # Make sure we don't let GNU ld be added if we didn't want it.
230 if test x$with_gnu_ld = xno ; then
232 noconfigdirs="$noconfigdirs ld gold"
236 # Make sure we don't let GNU as be added if we didn't want it.
237 if test x$with_gnu_as = xno ; then
239 noconfigdirs="$noconfigdirs gas"
243 AC_ARG_WITH(system-zlib,
244 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
245 # Make sure we don't let ZLIB be added if we didn't want it.
246 if test x$with_system_zlib = xyes ; then
248 noconfigdirs="$noconfigdirs zlib"
252 [AS_HELP_STRING([--with-zstd], [Support zstd compressed debug sections (default=auto)])])
254 # some tools are so dependent upon X11 that if we're not building with X,
255 # it's not even worth trying to configure, much less build, that tool.
258 yes | "") ;; # the default value for this tree is that X11 is available
260 skipdirs="${skipdirs} tk itcl libgui"
261 # We won't be able to build gdbtk without X.
264 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
267 # Some are only suitable for cross toolchains.
268 # Remove these if host=target.
269 cross_only="target-libgloss target-newlib target-opcodes"
271 case $is_cross_compiler in
272 no) skipdirs="${skipdirs} ${cross_only}" ;;
275 # If both --with-headers and --with-libs are specified, default to
277 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
278 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
279 if test x"${with_newlib}" = x ; then
284 # Recognize --with-newlib/--without-newlib.
285 case ${with_newlib} in
286 no) skipdirs="${skipdirs} target-newlib" ;;
287 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
290 AC_ARG_ENABLE(as-accelerator-for,
291 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
292 [build as offload target compiler.
293 Specify offload host triple by ARG])])
295 AC_ARG_ENABLE(offload-targets,
296 [AS_HELP_STRING([--enable-offload-targets=LIST],
297 [enable offloading to devices from comma-separated LIST of
298 TARGET[=DIR]. Use optional path to find offload target compiler
301 if test x"$enable_offload_targets" = x; then
302 AC_MSG_ERROR([no offload targets specified])
304 ], [enable_offload_targets=])
306 AC_ARG_ENABLE(offload-defaulted,
307 [AS_HELP_STRING([--enable-offload-defaulted]
308 [If enabled, configured but not installed offload compilers and
309 libgomp plugins are silently ignored. Useful for distribution
310 compilers where those are in separate optional packages.])],
311 [enable_offload_defaulted=$enableval],
312 [enable_offload_defaulted=])
314 # Handle --enable-gold, --enable-ld.
315 # --disable-gold [--enable-ld]
316 # Build only ld. Default option.
317 # --enable-gold [--enable-ld]
318 # Build both gold and ld. Install gold as "ld.gold", install ld
319 # as "ld.bfd" and "ld".
320 # --enable-gold=default [--enable-ld]
321 # Build both gold and ld. Install gold as "ld.gold" and "ld",
322 # install ld as "ld.bfd".
323 # --enable-gold[=default] --disable-ld
324 # Build only gold, which is then installed as both "ld.gold" and "ld".
325 # --enable-gold --enable-ld=default
326 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
328 # In other words, ld is default
329 # --enable-gold=default --enable-ld=default
334 [AS_HELP_STRING([[--enable-gold[=ARG]]],
335 [build gold @<:@ARG={default,yes,no}@:>@])],
336 ENABLE_GOLD=$enableval,
338 case "${ENABLE_GOLD}" in
340 # Check for ELF target.
343 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
344 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
345 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
346 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
348 *-*-linux*aout* | *-*-linux*oldld*)
356 if test "$is_elf" = "yes"; then
357 # Check for target supported by gold.
359 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
360 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-* | loongarch*-*-*)
361 configdirs="$configdirs gold"
362 if test x${ENABLE_GOLD} = xdefault; then
373 AC_MSG_ERROR([invalid --enable-gold argument])
378 [AS_HELP_STRING([[--enable-ld[=ARG]]],
379 [build ld @<:@ARG={default,yes,no}@:>@])],
380 ENABLE_LD=$enableval,
383 case "${ENABLE_LD}" in
385 if test x${default_ld} != x; then
386 AC_MSG_ERROR([either gold or ld can be the default ld])
392 if test x${ENABLE_GOLD} != xyes; then
393 AC_MSG_WARN([neither ld nor gold are enabled])
395 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
398 AC_MSG_ERROR([invalid --enable-ld argument])
402 AC_ARG_ENABLE(gprofng,
403 [AS_HELP_STRING([[--enable-gprofng[=ARG]]],
404 [build gprofng @<:@ARG={yes,no}@:>@])],
405 enable_gprofng=$enableval,
407 if test "$enable_gprofng" = "yes"; then
409 x86_64-*-linux* | i?86-*-linux* | aarch64-*-linux*)
410 configdirs="$configdirs gprofng"
417 # Decide the default method for compressing debug sections.
418 # Provide a configure time option to override our default.
419 AC_ARG_ENABLE(compressed_debug_sections,
420 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
421 [Enable compressed debug sections for gas, gold or ld by
424 if test x"$enable_compressed_debug_sections" = xyes; then
425 AC_MSG_ERROR([no program with compressed debug sections specified])
427 ], [enable_compressed_debug_sections=])
429 # Select default compression algorithm.
430 AC_ARG_ENABLE(default_compressed_debug_sections_algorithm,
431 [AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}],
432 [Default compression algorithm for --enable-compressed-debug-sections.])],
433 [], [default_compressed_debug_sections_algorithm=])
435 # Configure extra directories which are host specific
439 configdirs="$configdirs libtermcap" ;;
442 # A target can indicate whether a language isn't supported for some reason.
443 # Only spaces may be used in this macro; not newlines or tabs.
444 unsupported_languages=
446 # Remove more programs from consideration, based on the host or
447 # target this usually means that a port of the program doesn't
451 i[[3456789]]86-*-msdosdjgpp*)
452 noconfigdirs="$noconfigdirs tcl tk itcl"
456 # Default to --disable-year2038 until we can handle differences between
457 # projects that use gnulib (which understands year 2038) and projects that
459 AC_ARG_ENABLE(year2038,
460 AS_HELP_STRING([--enable-year2038],
461 [enable support for timestamps past the year 2038]),
462 ENABLE_YEAR2038=$enableval,
465 if test "${ENABLE_YEAR2038}" = "no" ; then
469 AC_ARG_ENABLE(libquadmath,
470 AS_HELP_STRING([--disable-libquadmath],
471 [do not build libquadmath directory]),
472 ENABLE_LIBQUADMATH=$enableval,
473 ENABLE_LIBQUADMATH=yes)
474 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
475 noconfigdirs="$noconfigdirs target-libquadmath"
479 AC_ARG_ENABLE(libquadmath-support,
480 AS_HELP_STRING([--disable-libquadmath-support],
481 [disable libquadmath support for Fortran]),
482 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
483 ENABLE_LIBQUADMATH_SUPPORT=yes)
484 enable_libquadmath_support=
485 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
486 enable_libquadmath_support=no
490 AC_ARG_ENABLE(libada,
491 [AS_HELP_STRING([--enable-libada], [build libada directory])],
492 ENABLE_LIBADA=$enableval,
494 if test "${ENABLE_LIBADA}" != "yes" ; then
495 noconfigdirs="$noconfigdirs gnattools"
498 AC_ARG_ENABLE(libssp,
499 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
500 ENABLE_LIBSSP=$enableval,
503 AC_ARG_ENABLE(libstdcxx,
504 AS_HELP_STRING([--disable-libstdcxx],
505 [do not build libstdc++-v3 directory]),
506 ENABLE_LIBSTDCXX=$enableval,
507 ENABLE_LIBSTDCXX=default)
508 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
509 noconfigdirs="$noconfigdirs target-libstdc++-v3"
512 # If this is accelerator compiler and its target is intelmic we enable
513 # target liboffloadmic by default. If this is compiler with offloading
514 # for intelmic we enable host liboffloadmic by default. Otherwise
515 # liboffloadmic is disabled by default.
516 AC_ARG_ENABLE([liboffloadmic],
517 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
518 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
519 [case "$enableval" in
521 enable_liboffloadmic=$enableval ;;
523 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
525 [if test x"$enable_as_accelerator_for" != x; then
527 *-intelmic-* | *-intelmicemul-*)
528 enable_liboffloadmic=target
529 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
532 enable_liboffloadmic=no
536 case "${enable_offload_targets}" in
537 *-intelmic-* | *-intelmicemul-*)
538 enable_liboffloadmic=host
539 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
542 enable_liboffloadmic=no
546 AC_SUBST(extra_liboffloadmic_configure_flags)
548 # Enable libgomp by default on hosted POSIX systems, and a few others.
549 if test x$enable_libgomp = x ; then
551 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
553 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
555 *-*-solaris2* | *-*-hpux11*)
557 *-*-darwin* | *-*-aix*)
559 nvptx*-*-* | amdgcn*-*-*)
562 noconfigdirs="$noconfigdirs target-libgomp"
567 # Disable libatomic on unsupported systems.
568 if test -d ${srcdir}/libatomic; then
569 if test x$enable_libatomic = x; then
570 AC_MSG_CHECKING([for libatomic support])
571 if (srcdir=${srcdir}/libatomic; \
572 . ${srcdir}/configure.tgt; \
573 test -n "$UNSUPPORTED")
576 noconfigdirs="$noconfigdirs target-libatomic"
583 # Disable liboffloadmic on unsupported systems.
584 if test -d ${srcdir}/liboffloadmic; then
585 if test x$enable_liboffloadmic != xno; then
586 AC_MSG_CHECKING([for liboffloadmic support])
587 if (srcdir=${srcdir}/liboffloadmic; \
588 . ${srcdir}/configure.tgt; \
589 test -n "$UNSUPPORTED")
592 noconfigdirs="$noconfigdirs target-liboffloadmic"
599 # Disable libitm on unsupported systems.
600 if test -d ${srcdir}/libitm; then
601 if test x$enable_libitm = x; then
602 AC_MSG_CHECKING([for libitm support])
603 if (srcdir=${srcdir}/libitm; \
604 . ${srcdir}/configure.tgt; \
605 test -n "$UNSUPPORTED")
608 noconfigdirs="$noconfigdirs target-libitm"
615 # Disable libsanitizer on unsupported systems.
616 if test -d ${srcdir}/libsanitizer; then
617 if test x$enable_libsanitizer = x; then
618 AC_MSG_CHECKING([for libsanitizer support])
619 if (srcdir=${srcdir}/libsanitizer; \
620 . ${srcdir}/configure.tgt; \
621 test -n "$UNSUPPORTED")
624 noconfigdirs="$noconfigdirs target-libsanitizer"
631 # Disable libvtv on unsupported systems.
632 if test -d ${srcdir}/libvtv; then
633 if test x$enable_libvtv = x; then
634 AC_MSG_CHECKING([for libvtv support])
635 if (srcdir=${srcdir}/libvtv; \
636 . ${srcdir}/configure.tgt; \
637 test "$VTV_SUPPORTED" != "yes")
640 noconfigdirs="$noconfigdirs target-libvtv"
647 # Disable libquadmath for some systems.
650 noconfigdirs="$noconfigdirs target-libquadmath"
652 # libquadmath is unused on AIX and libquadmath build process use of
653 # LD_LIBRARY_PATH can break AIX bootstrap.
654 powerpc-*-aix* | rs6000-*-aix*)
655 noconfigdirs="$noconfigdirs target-libquadmath"
659 # Disable libssp for some systems.
662 # No hosted I/O support.
663 noconfigdirs="$noconfigdirs target-libssp"
666 noconfigdirs="$noconfigdirs target-libssp"
668 powerpc-*-aix* | rs6000-*-aix*)
669 noconfigdirs="$noconfigdirs target-libssp"
672 # No hosted I/O support.
673 noconfigdirs="$noconfigdirs target-libssp"
676 # libssp uses a misaligned load to trigger a fault, but the RL78
677 # doesn't fault for those - instead, it gives a build-time error
678 # for explicit misaligned loads.
679 noconfigdirs="$noconfigdirs target-libssp"
682 # No hosted I/O support.
683 noconfigdirs="$noconfigdirs target-libssp"
687 # Disable libstdc++-v3 for some systems.
688 # Allow user to override this if they pass --enable-libstdcxx
689 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
692 # VxWorks uses the Dinkumware C++ library.
693 noconfigdirs="$noconfigdirs target-libstdc++-v3"
696 # Not ported/fails to build when using newlib.
697 noconfigdirs="$noconfigdirs target-libstdc++-v3"
700 # the C++ libraries don't build on top of CE's C libraries
701 noconfigdirs="$noconfigdirs target-libstdc++-v3"
704 noconfigdirs="$noconfigdirs target-libstdc++-v3"
707 noconfigdirs="$noconfigdirs target-libstdc++-v3"
710 noconfigdirs="$noconfigdirs target-libstdc++-v3"
715 # Disable C++ on systems where it is known to not work.
716 # For testing, you can override this with --enable-languages=c++.
717 case ,${enable_languages}, in
723 unsupported_languages="$unsupported_languages c++"
729 # Disable Objc on systems where it is known to not work.
730 # For testing, you can override this with --enable-languages=objc.
731 case ,${enable_languages}, in
737 unsupported_languages="$unsupported_languages objc"
743 # Disable D on systems where it is known to not work.
744 # For testing, you can override this with --enable-languages=d.
745 case ,${enable_languages}, in
751 unsupported_languages="$unsupported_languages d"
757 # Disable libphobos on unsupported systems.
758 # For testing, you can override this with --enable-libphobos.
759 if test -d ${srcdir}/libphobos; then
760 if test x$enable_libphobos = x; then
761 AC_MSG_CHECKING([for libphobos support])
762 if (srcdir=${srcdir}/libphobos; \
763 . ${srcdir}/configure.tgt; \
764 test "$LIBPHOBOS_SUPPORTED" != "yes")
767 noconfigdirs="$noconfigdirs target-libphobos"
774 # Disable Fortran for some systems.
777 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
778 unsupported_languages="$unsupported_languages fortran"
781 unsupported_languages="$unsupported_languages fortran"
785 # Disable libffi for some systems.
789 i[[3456789]]86-*-darwin*)
791 x86_64-*-darwin[[912]]*)
794 noconfigdirs="$noconfigdirs target-libffi"
797 noconfigdirs="$noconfigdirs target-libffi"
800 noconfigdirs="$noconfigdirs target-libffi"
803 noconfigdirs="$noconfigdirs target-libffi"
806 noconfigdirs="$noconfigdirs target-libffi"
809 noconfigdirs="$noconfigdirs target-libffi"
812 noconfigdirs="$noconfigdirs target-libffi"
815 noconfigdirs="$noconfigdirs target-libffi"
818 noconfigdirs="$noconfigdirs target-libffi"
821 noconfigdirs="$noconfigdirs target-libffi"
824 noconfigdirs="$noconfigdirs target-libffi"
827 noconfigdirs="$noconfigdirs target-libffi"
830 noconfigdirs="$noconfigdirs target-libffi"
832 cris-*-* | crisv32-*-*)
836 *) # See PR46792 regarding target-libffi.
837 noconfigdirs="$noconfigdirs target-libffi";;
841 noconfigdirs="$noconfigdirs target-libffi"
846 noconfigdirs="$noconfigdirs target-libffi"
849 noconfigdirs="$noconfigdirs target-libffi"
851 i[[3456789]]86-w64-mingw*)
852 noconfigdirs="$noconfigdirs target-libffi"
854 i[[3456789]]86-*-mingw*)
855 noconfigdirs="$noconfigdirs target-libffi"
858 noconfigdirs="$noconfigdirs target-libffi"
861 noconfigdirs="$noconfigdirs target-libffi"
868 noconfigdirs="$noconfigdirs target-libffi"
871 noconfigdirs="$noconfigdirs target-libffi"
875 # Disable the go frontend on systems where it is known to not work. Please keep
876 # this in sync with contrib/config-list.mk.
878 *-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
879 unsupported_languages="$unsupported_languages go"
883 # Only allow gdbserver on some systems.
884 if test -d ${srcdir}/gdbserver; then
885 if test x$enable_gdbserver = x; then
886 AC_MSG_CHECKING([for gdbserver support])
887 if (srcdir=${srcdir}/gdbserver; \
888 . ${srcdir}/configure.srv; \
889 test -n "$UNSUPPORTED")
892 noconfigdirs="$noconfigdirs gdbserver"
899 # Disable libgo for some systems where it is known to not work.
900 # For testing, you can easily override this with --enable-libgo.
901 if test x$enable_libgo = x; then
905 noconfigdirs="$noconfigdirs target-libgo"
907 *-*-cygwin* | *-*-mingw*)
908 noconfigdirs="$noconfigdirs target-libgo"
911 noconfigdirs="$noconfigdirs target-libgo"
916 # Default libgloss CPU subdirectory.
917 libgloss_dir="$target_cpu"
920 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
929 cris-*-* | crisv32-*-*)
939 libgloss_dir=loongarch
941 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
961 # Disable newlib and libgloss for various target OSes.
964 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
966 i[[3456789]]86-*-linux*)
967 # This section makes it possible to build newlib natively on linux.
968 # If we are using a cross compiler then don't configure newlib.
969 if test x${is_cross_compiler} != xno ; then
970 noconfigdirs="$noconfigdirs target-newlib"
972 noconfigdirs="$noconfigdirs target-libgloss"
973 # If we are not using a cross compiler, do configure newlib.
974 # Note however, that newlib will only be configured in this situation
975 # if the --with-newlib option has been given, because otherwise
976 # 'target-newlib' will appear in skipdirs.
978 i[[3456789]]86-*-rdos*)
979 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
981 sh*-*-pe|mips*-*-pe|arm-wince-pe)
982 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
985 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
988 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
991 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
994 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
997 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1000 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1003 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1005 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
1006 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1009 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1012 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1015 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1018 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1021 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1024 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1027 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1035 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1036 noconfigdirs="$noconfigdirs sim target-rda"
1041 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1042 noconfigdirs="$noconfigdirs sim target-rda"
1045 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1046 noconfigdirs="$noconfigdirs sim target-rda"
1048 i[[3456789]]86-*-darwin*)
1049 noconfigdirs="$noconfigdirs ld gprof"
1050 noconfigdirs="$noconfigdirs sim target-rda"
1052 x86_64-*-darwin[[912]]*)
1053 noconfigdirs="$noconfigdirs ld gas gprof"
1054 noconfigdirs="$noconfigdirs sim target-rda"
1057 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1058 noconfigdirs="$noconfigdirs sim target-rda"
1063 if test "x$with_gmp" = x \
1064 && ! test -d ${srcdir}/gmp \
1065 && test -f /usr/local/include/gmp.h; then
1070 # Remove unsupported stuff on all kaOS configurations.
1071 noconfigdirs="$noconfigdirs target-libgloss"
1078 noconfigdirs="$noconfigdirs target-libgloss"
1081 noconfigdirs="$noconfigdirs target-libgloss"
1083 # The tpf target doesn't support gdb yet.
1085 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
1088 noconfigdirs="$noconfigdirs target-rda"
1093 # ld works, but does not support shared libraries.
1094 # gas doesn't generate exception information.
1095 noconfigdirs="$noconfigdirs gas ld"
1098 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1101 # newlib is not 64 bit ready
1102 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1105 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1107 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1108 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1111 noconfigdirs="$noconfigdirs sim"
1114 noconfigdirs="$noconfigdirs target-libgloss"
1117 noconfigdirs="$noconfigdirs ld target-libgloss"
1120 if test x${with_avrlibc} != xno; then
1121 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1124 c4x-*-* | tic4x-*-*)
1125 noconfigdirs="$noconfigdirs target-libgloss"
1128 noconfigdirs="$noconfigdirs target-libgloss gdb"
1131 noconfigdirs="$noconfigdirs target-libgloss"
1134 noconfigdirs="$noconfigdirs gdb"
1137 noconfigdirs="$noconfigdirs gdb"
1140 noconfigdirs="$noconfigdirs target-rda gprof"
1143 noconfigdirs="$noconfigdirs"
1146 noconfigdirs="$noconfigdirs target-libgloss"
1149 noconfigdirs="$noconfigdirs target-libgloss"
1151 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1154 noconfigdirs="$noconfigdirs gdb"
1157 noconfigdirs="$noconfigdirs gdb ld"
1165 hppa*-*-openbsd* | \
1171 noconfigdirs="$noconfigdirs ld"
1174 noconfigdirs="$noconfigdirs gdb"
1177 # No gdb support yet.
1178 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1181 # No ld support yet.
1182 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1185 # No ld support yet.
1186 noconfigdirs="$noconfigdirs libgui itcl ld"
1188 i[[3456789]]86-w64-mingw*)
1190 i[[3456789]]86-*-mingw*)
1191 target_configdirs="$target_configdirs target-winsup"
1194 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1195 noconfigdirs="$noconfigdirs target-libgloss"
1196 # always build newlib if winsup directory is present.
1197 if test -d "$srcdir/winsup/cygwin"; then
1198 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1199 elif test -d "$srcdir/newlib"; then
1200 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1203 i[[3456789]]86-*-pe)
1204 noconfigdirs="$noconfigdirs target-libgloss"
1206 i[[3456789]]86-*-sco3.2v5*)
1207 # The linker does not yet know about weak symbols in COFF,
1208 # and is not configured to handle mixed ELF and COFF.
1209 noconfigdirs="$noconfigdirs ld target-libgloss"
1211 i[[3456789]]86-*-sco*)
1212 noconfigdirs="$noconfigdirs gprof target-libgloss"
1214 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1215 noconfigdirs="$noconfigdirs target-libgloss"
1217 i[[3456789]]86-*-sysv4*)
1218 noconfigdirs="$noconfigdirs target-libgloss"
1220 i[[3456789]]86-*-beos*)
1221 noconfigdirs="$noconfigdirs gdb"
1223 i[[3456789]]86-*-rdos*)
1224 noconfigdirs="$noconfigdirs gdb"
1227 noconfigdirs="$noconfigdirs gdb"
1230 noconfigdirs="$noconfigdirs sim"
1233 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1234 noconfigdirs="$noconfigdirs $target_libraries"
1237 noconfigdirs="$noconfigdirs gdb gprof"
1240 # copied from rs6000-*-* entry
1241 noconfigdirs="$noconfigdirs gprof"
1243 powerpc*-*-winnt* | powerpc*-*-pe*)
1244 target_configdirs="$target_configdirs target-winsup"
1245 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1246 # always build newlib.
1247 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1249 # This is temporary until we can link against shared libraries
1250 powerpcle-*-solaris*)
1251 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1254 noconfigdirs="$noconfigdirs gdb"
1257 noconfigdirs="$noconfigdirs gprof"
1260 noconfigdirs="$noconfigdirs gprof"
1263 noconfigdirs="$noconfigdirs gprof"
1266 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1269 noconfigdirs="$noconfigdirs gprof"
1271 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1272 if test x$with_newlib = xyes; then
1273 noconfigdirs="$noconfigdirs gprof"
1277 noconfigdirs="$noconfigdirs gprof target-libgloss"
1280 noconfigdirs="$noconfigdirs gprof target-libgloss"
1283 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1287 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1288 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1289 noconfigdirs="$noconfigdirs ld gas gprof"
1292 noconfigdirs="$noconfigdirs gprof"
1295 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1302 noconfigdirs="$noconfigdirs target-libgloss" ;;
1306 if test x${is_cross_compiler} = xno ; then
1311 noconfigdirs="$noconfigdirs sim"
1313 tilepro*-*-* | tilegx*-*-*)
1314 noconfigdirs="$noconfigdirs sim"
1317 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1320 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1323 noconfigdirs="$noconfigdirs ld"
1325 loongarch*-*-linux*)
1328 noconfigdirs="$noconfigdirs gprof"
1332 # If we aren't building newlib, then don't build libgloss, since libgloss
1333 # depends upon some newlib header files.
1334 case "${noconfigdirs}" in
1335 *target-libgloss*) ;;
1336 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1339 # Work in distributions that contain no compiler tools, like Autoconf.
1340 host_makefile_frag=/dev/null
1341 if test -d ${srcdir}/config ; then
1343 i[[3456789]]86-*-msdosdjgpp*)
1344 host_makefile_frag="config/mh-djgpp"
1347 ACX_CHECK_CYGWIN_CAT_WORKS
1348 host_makefile_frag="config/mh-cygwin"
1351 host_makefile_frag="config/mh-mingw"
1354 host_makefile_frag="config/mh-alpha-linux"
1357 host_makefile_frag="config/mh-pa-hpux10"
1360 host_makefile_frag="config/mh-pa"
1363 host_makefile_frag="config/mh-pa"
1365 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
1366 host_makefile_frag="config/mh-darwin"
1369 host_makefile_frag="config/mh-ppc-aix"
1372 host_makefile_frag="config/mh-ppc-aix"
1377 if test "${build}" != "${host}" ; then
1378 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1379 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1380 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1381 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
1382 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1383 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
1384 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1385 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1386 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1387 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1388 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1389 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1390 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1391 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1392 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1394 AR_FOR_BUILD="\$(AR)"
1395 AS_FOR_BUILD="\$(AS)"
1396 CC_FOR_BUILD="\$(CC)"
1397 CXX_FOR_BUILD="\$(CXX)"
1398 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
1399 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1400 GOC_FOR_BUILD="\$(GOC)"
1401 GDC_FOR_BUILD="\$(GDC)"
1402 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1403 LD_FOR_BUILD="\$(LD)"
1404 NM_FOR_BUILD="\$(NM)"
1405 RANLIB_FOR_BUILD="\$(RANLIB)"
1406 WINDRES_FOR_BUILD="\$(WINDRES)"
1407 WINDMC_FOR_BUILD="\$(WINDMC)"
1413 # We must set the default linker to the linker used by gcc for the correct
1414 # operation of libtool. If LD is not defined and we are using gcc, try to
1415 # set the LD default to the ld used by gcc.
1416 if test -z "$LD"; then
1417 if test "$GCC" = yes; then
1420 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1422 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1424 case $gcc_prog_ld in
1425 # Accept absolute paths.
1426 [[\\/]* | [A-Za-z]:[\\/]*)]
1427 LD="$gcc_prog_ld" ;;
1432 # Check whether -static-libstdc++ -static-libgcc is supported.
1434 if test "$GCC" = yes; then
1435 saved_LDFLAGS="$LDFLAGS"
1437 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1438 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1440 AC_LINK_IFELSE([AC_LANG_SOURCE([
1441 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1442 #error -static-libstdc++ not implemented
1445 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1446 [AC_MSG_RESULT([no])])
1449 LDFLAGS="$saved_LDFLAGS"
1454 ACX_PROG_CMP_IGNORE_INITIAL
1456 AC_ARG_ENABLE([bootstrap],
1457 [AS_HELP_STRING([--enable-bootstrap],
1458 [enable bootstrapping @<:@yes if native build@:>@])],,
1459 enable_bootstrap=default)
1461 # Issue errors and warnings for invalid/strange bootstrap combinations.
1462 if test -r $srcdir/gcc/configure; then
1468 case "$have_compiler:$host:$target:$enable_bootstrap" in
1471 # Default behavior. Enable bootstrap if we have a compiler
1472 # and we are in a native configuration.
1473 yes:$build:$build:default)
1474 enable_bootstrap=yes ;;
1477 enable_bootstrap=no ;;
1479 # We have a compiler and we are in a native configuration, bootstrap is ok
1480 yes:$build:$build:yes)
1483 # Other configurations, but we have a compiler. Assume the user knows
1486 AC_MSG_WARN([trying to bootstrap a cross compiler])
1489 # No compiler: if they passed --enable-bootstrap explicitly, fail
1491 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1493 # Fail if wrong command line
1495 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1499 # When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
1500 # C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1501 # require C++11 (or higher).
1502 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1503 CXX="$CXX -std=c++11"
1504 elif test "$have_compiler" = yes; then
1505 AX_CXX_COMPILE_STDCXX(11)
1507 if test "${build}" != "${host}"; then
1508 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1512 AC_ARG_ENABLE([pgo-build],
1513 [AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1514 [enable the PGO build])],
1515 [enable_pgo_build=$enableval],
1516 [enable_pgo_build=no])
1518 # Issue errors and warnings for invalid/strange PGO build combinations.
1519 case "$have_compiler:$host:$target:$enable_pgo_build" in
1522 # Allow the PGO build only if we aren't building a compiler and
1523 # we are in a native configuration.
1524 no:$build:$build:yes | no:$build:$build:lto) ;;
1526 # Disallow the PGO bootstrap if we are building a compiler.
1527 yes:*:*:yes | yes:*:*:lto)
1528 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1531 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1535 if test "$enable_pgo_build" != "no"; then
1536 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1537 old_CFLAGS="$CFLAGS"
1538 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1539 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1540 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1541 [PGO_BUILD_GEN_CFLAGS=])
1542 CFLAGS="$old_CFLAGS"
1543 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1544 AC_MSG_RESULT([yes])
1545 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1548 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1551 if test "$enable_pgo_build" = "lto"; then
1552 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1553 old_CFLAGS="$CFLAGS"
1554 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1555 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1556 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1557 [PGO_BUILD_LTO_CFLAGS=])
1558 CFLAGS="$old_CFLAGS"
1559 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1560 AC_MSG_RESULT([yes])
1563 AC_MSG_WARN([LTO is disabled for the PGO build])
1567 AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1568 AC_SUBST(PGO_BUILD_USE_CFLAGS)
1569 AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1571 # Used for setting $lt_cv_objdir
1574 # Check for GMP, MPFR and MPC
1575 gmplibs="-lmpc -lmpfr -lgmp"
1579 # Specify a location for mpc
1580 # check for this first so it ends up on the link line before mpfr.
1582 [AS_HELP_STRING([--with-mpc=PATH],
1583 [specify prefix directory for installed MPC package.
1584 Equivalent to --with-mpc-include=PATH/include
1585 plus --with-mpc-lib=PATH/lib])])
1586 AC_ARG_WITH(mpc-include,
1587 [AS_HELP_STRING([--with-mpc-include=PATH],
1588 [specify directory for installed MPC include files])])
1589 AC_ARG_WITH(mpc-lib,
1590 [AS_HELP_STRING([--with-mpc-lib=PATH],
1591 [specify directory for the installed MPC library])])
1593 if test "x$with_mpc" != x; then
1594 gmplibs="-L$with_mpc/lib $gmplibs"
1595 gmpinc="-I$with_mpc/include $gmpinc"
1597 if test "x$with_mpc_include" != x; then
1598 gmpinc="-I$with_mpc_include $gmpinc"
1600 if test "x$with_mpc_lib" != x; then
1601 gmplibs="-L$with_mpc_lib $gmplibs"
1603 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1604 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1605 gmpinc='-I$$s/mpc/src '"$gmpinc"
1606 # Do not test the mpc version. Assume that it is sufficient, since
1607 # it is in the source tree, and the library has not been built yet
1608 # but it would be included on the link line in the version check below
1609 # hence making the test fail.
1613 # Specify a location for mpfr
1614 # check for this first so it ends up on the link line before gmp.
1616 [AS_HELP_STRING([--with-mpfr=PATH],
1617 [specify prefix directory for installed MPFR package.
1618 Equivalent to --with-mpfr-include=PATH/include
1619 plus --with-mpfr-lib=PATH/lib])])
1620 AC_ARG_WITH(mpfr-include,
1621 [AS_HELP_STRING([--with-mpfr-include=PATH],
1622 [specify directory for installed MPFR include files])])
1623 AC_ARG_WITH(mpfr-lib,
1624 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1625 [specify directory for the installed MPFR library])])
1627 if test "x$with_mpfr" != x; then
1628 gmplibs="-L$with_mpfr/lib $gmplibs"
1629 gmpinc="-I$with_mpfr/include $gmpinc"
1631 if test "x$with_mpfr_include" != x; then
1632 gmpinc="-I$with_mpfr_include $gmpinc"
1634 if test "x$with_mpfr_lib" != x; then
1635 gmplibs="-L$with_mpfr_lib $gmplibs"
1637 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1638 # MPFR v3.1.0 moved the sources into a src sub-directory.
1639 if ! test -d ${srcdir}/mpfr/src; then
1641 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1643 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1644 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1645 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1646 # Do not test the mpfr version. Assume that it is sufficient, since
1647 # it is in the source tree, and the library has not been built yet
1648 # but it would be included on the link line in the version check below
1649 # hence making the test fail.
1653 # Specify a location for gmp
1655 [AS_HELP_STRING([--with-gmp=PATH],
1656 [specify prefix directory for the installed GMP package.
1657 Equivalent to --with-gmp-include=PATH/include
1658 plus --with-gmp-lib=PATH/lib])])
1659 AC_ARG_WITH(gmp-include,
1660 [AS_HELP_STRING([--with-gmp-include=PATH],
1661 [specify directory for installed GMP include files])])
1662 AC_ARG_WITH(gmp-lib,
1663 [AS_HELP_STRING([--with-gmp-lib=PATH],
1664 [specify directory for the installed GMP library])])
1667 if test "x$with_gmp" != x; then
1668 gmplibs="-L$with_gmp/lib $gmplibs"
1669 gmpinc="-I$with_gmp/include $gmpinc"
1671 if test "x$with_gmp_include" != x; then
1672 gmpinc="-I$with_gmp_include $gmpinc"
1674 if test "x$with_gmp_lib" != x; then
1675 gmplibs="-L$with_gmp_lib $gmplibs"
1677 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1678 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1679 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1680 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1681 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1682 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1683 # Do not test the gmp version. Assume that it is sufficient, since
1684 # it is in the source tree, and the library has not been built yet
1685 # but it would be included on the link line in the version check below
1686 # hence making the test fail.
1690 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1692 saved_CFLAGS="$CFLAGS"
1693 CFLAGS="$CFLAGS $gmpinc"
1694 # Check for the recommended and required versions of GMP.
1695 AC_MSG_CHECKING([for the correct version of gmp.h])
1696 AC_TRY_COMPILE([#include "gmp.h"],[
1697 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1698 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1699 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1702 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1703 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1704 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1705 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1708 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1709 [AC_MSG_RESULT([no]); have_gmp=no])
1711 # If we have GMP, check the MPFR version.
1712 if test x"$have_gmp" = xyes; then
1713 # Check for the recommended and required versions of MPFR.
1714 AC_MSG_CHECKING([for the correct version of mpfr.h])
1715 AC_TRY_COMPILE([#include <gmp.h>
1716 #include <mpfr.h>],[
1717 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
1720 ], [AC_TRY_COMPILE([#include <gmp.h>
1721 #include <mpfr.h>],[
1722 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
1725 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1726 [AC_MSG_RESULT([no]); have_gmp=no])
1729 # Check for the MPC header version.
1730 if test x"$have_gmp" = xyes ; then
1731 # Check for the recommended and required versions of MPC.
1732 AC_MSG_CHECKING([for the correct version of mpc.h])
1733 AC_TRY_COMPILE([#include <mpc.h>],[
1734 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1737 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1738 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1741 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1742 [AC_MSG_RESULT([no]); have_gmp=no])
1745 # Now check the MPFR library.
1746 if test x"$have_gmp" = xyes; then
1748 LIBS="$LIBS $gmplibs"
1749 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1750 AC_TRY_LINK([#include <mpc.h>],[
1757 mpfr_atan2 (n, n, x, MPFR_RNDN);
1758 mpfr_erfc (n, x, MPFR_RNDN);
1759 mpfr_subnormalize (x, t, MPFR_RNDN);
1763 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1764 mpc_cosh (c, c, MPC_RNDNN);
1765 mpc_pow (c, c, c, MPC_RNDNN);
1766 mpc_acosh (c, c, MPC_RNDNN);
1768 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1772 CFLAGS="$saved_CFLAGS"
1774 # The library versions listed in the error message below should match
1775 # the HARD-minimums enforced above.
1776 if test x$have_gmp != xyes; then
1777 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
1778 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1779 their locations. Source code for these libraries can be found at
1780 their respective hosting sites as well as at
1781 https://gcc.gnu.org/pub/gcc/infrastructure/. See also
1782 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1783 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1784 make sure that you have installed both the libraries and the header
1785 files. They may be located in separate packages.])
1789 # Flags needed for both GMP, MPFR and/or MPC.
1792 AC_SUBST(extra_mpfr_configure_flags)
1793 AC_SUBST(extra_mpc_gmp_configure_flags)
1794 AC_SUBST(extra_mpc_mpfr_configure_flags)
1795 AC_SUBST(extra_isl_gmp_configure_flags)
1797 # Libraries to use for stage1 or when not bootstrapping.
1798 AC_ARG_WITH(stage1-libs,
1799 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1800 [if test "$withval" = "no" -o "$withval" = "yes"; then
1803 stage1_libs=$withval
1806 AC_SUBST(stage1_libs)
1808 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1809 # default is yes if gcc is being built; no otherwise. The reason for
1810 # this default is that gdb is sometimes linked against GNU Source
1811 # Highlight, which is a shared library that uses C++ exceptions. In
1812 # this case, -static-libstdc++ will cause crashes.
1813 AC_ARG_WITH(static-standard-libraries,
1814 [AS_HELP_STRING([--with-static-standard-libraries],
1815 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1816 [], [with_static_standard_libraries=auto])
1817 if test "$with_static_standard_libraries" = auto; then
1818 with_static_standard_libraries=$have_compiler
1821 # Linker flags to use for stage1 or when not bootstrapping.
1822 AC_ARG_WITH(stage1-ldflags,
1823 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1824 [if test "$withval" = "no" -o "$withval" = "yes"; then
1827 stage1_ldflags=$withval
1830 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1831 # if supported. But if the user explicitly specified the libraries to use,
1832 # trust that they are doing what they want.
1833 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1834 -a "$have_static_libs" = yes; then
1835 stage1_ldflags="-static-libstdc++ -static-libgcc"
1837 AC_SUBST(stage1_ldflags)
1839 # Libraries to use for stage2 and later builds.
1840 AC_ARG_WITH(boot-libs,
1841 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1842 [if test "$withval" = "no" -o "$withval" = "yes"; then
1845 poststage1_libs=$withval
1848 AC_SUBST(poststage1_libs)
1850 # Linker flags to use for stage2 and later builds.
1851 AC_ARG_WITH(boot-ldflags,
1852 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1853 [linker flags for stage2 and later])],
1854 [if test "$withval" = "no" -o "$withval" = "yes"; then
1857 poststage1_ldflags=$withval
1859 [poststage1_ldflags=
1860 # In stages 2 and 3, default to linking libstdc++ and libgcc
1861 # statically. But if the user explicitly specified the libraries to
1862 # use, trust that they are doing what they want.
1863 if test "$poststage1_libs" = ""; then
1864 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1866 AC_SUBST(poststage1_ldflags)
1868 # GCC GRAPHITE dependency isl.
1869 # Basic setup is inlined here, actual checks are in config/isl.m4
1874 [Specify prefix directory for the installed isl package.
1875 Equivalent to --with-isl-include=PATH/include
1876 plus --with-isl-lib=PATH/lib])])
1878 # Treat --without-isl as a request to disable
1879 # GRAPHITE support and skip all following checks.
1880 if test "x$with_isl" != "xno"; then
1882 dnl Provide configure switches and initialize islinc & isllibs
1883 dnl with user input.
1885 dnl The versions of isl that work for Graphite
1887 dnl Only execute fail-action, if isl has been requested.
1889 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1892 # If the isl check failed, disable builds of in-tree variant of isl
1893 if test "x$with_isl" = xno ||
1894 test "x$gcc_cv_isl" = xno; then
1895 noconfigdirs="$noconfigdirs isl"
1902 # Check for LTO support.
1904 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1905 enable_lto=$enableval,
1906 enable_lto=yes; default_enable_lto=yes)
1908 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1909 build_lto_plugin=yes
1910 ],[if test x"$default_enable_lto" = x"yes" ; then
1912 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1913 # On other non-ELF platforms, LTO has yet to be validated.
1917 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1918 # It would also be nice to check the binutils support, but we don't
1919 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1920 # warn during gcc/ subconfigure; unless you're bootstrapping with
1921 # -flto it won't be needed until after installation anyway.
1923 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1924 *) if test x"$enable_lto" = x"yes"; then
1925 AC_MSG_ERROR([LTO support is not enabled for this target.])
1930 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1931 # Build it unless LTO was explicitly disabled.
1933 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1938 AC_ARG_ENABLE(linker-plugin-configure-flags,
1939 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1940 [additional flags for configuring linker plugins @<:@none@:>@])],
1941 extra_linker_plugin_configure_flags=$enableval,
1942 extra_linker_plugin_configure_flags=)
1943 AC_SUBST(extra_linker_plugin_configure_flags)
1944 AC_ARG_ENABLE(linker-plugin-flags,
1945 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1946 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1947 extra_linker_plugin_flags=$enableval,
1948 extra_linker_plugin_flags=)
1949 AC_SUBST(extra_linker_plugin_flags)
1951 # Enable --enable-host-shared.
1952 # Checked early to determine whether jit is an 'all' language
1953 AC_ARG_ENABLE(host-shared,
1954 [AS_HELP_STRING([--enable-host-shared],
1955 [build host code as shared libraries])],
1956 [host_shared=$enableval
1958 x86_64-*-darwin* | aarch64-*-darwin*)
1959 if test x$host_shared != xyes ; then
1960 # PIC is the default, and actually cannot be switched off.
1961 echo configure.ac: warning: PIC code is required for the configured target, host-shared setting ignored. 1>&2
1967 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
1968 *) host_shared=no ;;
1970 AC_SUBST(host_shared)
1972 # By default, C and C++ are the only stage 1 languages.
1973 stage1_languages=,c,
1975 # Target libraries that we bootstrap.
1976 bootstrap_target_libs=,target-libgcc,
1978 # Figure out what language subdirectories are present.
1979 # Look if the user specified --enable-languages="..."; if not, use
1980 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1982 # NB: embedded tabs in this IF block -- do not untabify
1983 if test -d ${srcdir}/gcc; then
1984 if test x"${enable_languages+set}" != xset; then
1985 if test x"${LANGUAGES+set}" = xset; then
1986 enable_languages="${LANGUAGES}"
1987 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1989 enable_languages=default
1992 if test x"${enable_languages}" = x ||
1993 test x"${enable_languages}" = xyes;
1995 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1999 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2001 # 'f95' is the old name for the 'fortran' language. We issue a warning
2002 # and make the substitution.
2003 case ,${enable_languages}, in
2005 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
2006 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
2010 # If bootstrapping, C++ must be enabled.
2011 case ",$enable_languages,:$enable_bootstrap" in
2014 if test -f ${srcdir}/gcc/cp/config-lang.in; then
2015 enable_languages="${enable_languages},c++"
2017 AC_MSG_ERROR([bootstrapping requires c++ sources])
2022 # First scan to see if an enabled language requires some other language.
2023 # We assume that a given config-lang.in will list all the language
2024 # front ends it requires, even if some are required indirectly.
2025 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2026 case ${lang_frag} in
2028 # The odd quoting in the next line works around
2029 # an apparent bug in bash 1.12 on linux.
2030 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2032 # From the config-lang.in, get $language, $lang_requires, and
2033 # $lang_requires_boot_languages.
2036 lang_requires_boot_languages=
2037 # set srcdir during sourcing lang_frag to the gcc dir.
2038 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
2039 # polutes this shell
2040 saved_srcdir=${srcdir}
2041 srcdir=${srcdir}/gcc . ${lang_frag}
2042 srcdir=${saved_srcdir}
2043 for other in ${lang_requires} ${lang_requires_boot_languages}; do
2044 case ,${enable_languages}, in
2049 echo " \`$other' language required by \`$language'; enabling" 1>&2
2050 enable_languages="${enable_languages},${other}"
2054 for other in ${lang_requires_boot_languages} ; do
2055 if test "$other" != "c"; then
2056 case ,${enable_stage1_languages}, in
2061 case ,${enable_languages}, in
2063 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
2064 enable_stage1_languages="$enable_stage1_languages,${other}"
2075 new_enable_languages=,c,
2077 # If LTO is enabled, add the LTO front end.
2078 if test "$enable_lto" = "yes" ; then
2079 case ,${enable_languages}, in
2081 *) enable_languages="${enable_languages},lto" ;;
2083 if test "${build_lto_plugin}" = "yes" ; then
2084 configdirs="$configdirs lto-plugin"
2088 # If we're building an offloading compiler, add the LTO front end.
2089 if test x"$enable_as_accelerator_for" != x ; then
2090 case ,${enable_languages}, in
2092 *) enable_languages="${enable_languages},lto" ;;
2096 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
2097 potential_languages=,c,
2099 enabled_target_libs=
2100 disabled_target_libs=
2102 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2103 case ${lang_frag} in
2105 # The odd quoting in the next line works around
2106 # an apparent bug in bash 1.12 on linux.
2107 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2109 # From the config-lang.in, get $language, $target_libs,
2110 # $lang_dirs, $boot_language, and $build_by_default
2116 build_by_default=yes
2117 # set srcdir during sourcing. See above about save & restore
2118 saved_srcdir=${srcdir}
2119 srcdir=${srcdir}/gcc . ${lang_frag}
2120 srcdir=${saved_srcdir}
2121 if test x${language} = x; then
2122 echo "${lang_frag} doesn't set \$language." 1>&2
2126 if test "$language" = "c++"; then
2131 # C is always enabled, so no need to add it again
2132 if test "$language" != "c"; then
2133 case ,${enable_languages}, in
2135 # Language was explicitly selected; include it
2139 # All languages are enabled
2143 # 'default' was selected, select it if it is a default language
2144 add_this_lang=${build_by_default}
2149 # Disable languages that need other directories if these aren't available.
2150 for i in $subdir_requires; do
2151 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2152 case ${add_this_lang} in
2154 # Specifically requested language; tell them.
2155 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2158 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2159 add_this_lang=unsupported
2163 add_this_lang=unsupported
2168 # Disable Ada if no preexisting GNAT is available.
2169 case ${add_this_lang}:${language}:${have_gnat} in
2171 # Specifically requested language; tell them.
2172 AC_MSG_ERROR([GNAT is required to build $language])
2175 AC_MSG_WARN([GNAT is required to build $language])
2176 add_this_lang=unsupported
2180 add_this_lang=unsupported
2184 # Disable D if no preexisting GDC is available.
2185 case ${add_this_lang}:${language}:${have_gdc} in
2187 # Specifically requested language; tell them.
2188 AC_MSG_ERROR([GDC is required to build $language])
2191 AC_MSG_WARN([GDC is required to build $language])
2192 add_this_lang=unsupported
2196 add_this_lang=unsupported
2200 # Disable jit if -enable-host-shared not specified
2201 # but not if building for Mingw. All code in Windows
2202 # is position independent code (PIC).
2206 case ${add_this_lang}:${language}:${host_shared} in
2208 # PR jit/64780: explicitly specify --enable-host-shared
2210 Enabling language "jit" requires --enable-host-shared.
2212 --enable-host-shared typically slows the rest of the compiler down by
2213 a few %, so you must explicitly enable it.
2215 If you want to build both the jit and the regular compiler, it is often
2216 best to do this via two separate configure/builds, in separate
2217 directories, to avoid imposing the performance cost of
2218 --enable-host-shared on the regular compiler.])
2221 AC_MSG_WARN([--enable-host-shared required to build $language])
2222 add_this_lang=unsupported
2226 add_this_lang=unsupported
2232 # Disable a language that is unsupported by the target.
2233 case "${add_this_lang}: $unsupported_languages " in
2237 AC_MSG_WARN([${language} not supported for this target])
2238 add_this_lang=unsupported
2242 case $add_this_lang in
2244 # Remove language-dependent dirs.
2245 disabled_target_libs="$disabled_target_libs $target_libs"
2246 noconfigdirs="$noconfigdirs $lang_dirs"
2249 # Remove language-dependent dirs; still show language as supported.
2250 disabled_target_libs="$disabled_target_libs $target_libs"
2251 noconfigdirs="$noconfigdirs $lang_dirs"
2252 potential_languages="${potential_languages}${language},"
2255 new_enable_languages="${new_enable_languages}${language},"
2256 potential_languages="${potential_languages}${language},"
2257 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2258 enabled_target_libs="$enabled_target_libs $target_libs"
2259 case "${boot_language}:,$enable_stage1_languages," in
2260 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2261 # Add to (comma-separated) list of stage 1 languages.
2262 case ",$stage1_languages," in
2263 *,$language,* | ,yes, | ,all,) ;;
2264 *) stage1_languages="${stage1_languages}${language}," ;;
2266 # We need to bootstrap any supporting libraries.
2267 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2276 # Add target libraries which are only needed for disabled languages
2278 if test -n "$disabled_target_libs"; then
2279 for dir in $disabled_target_libs; do
2280 case " $enabled_target_libs " in
2282 *) noconfigdirs="$noconfigdirs $dir" ;;
2287 AC_ARG_ENABLE(stage1-languages,
2288 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2289 [choose additional languages to build during
2290 stage1. Mostly useful for compiler development])],
2291 [case ,${enable_stage1_languages}, in
2293 # Set it to something that will have no effect in the loop below
2294 enable_stage1_languages=c ;;
2296 enable_stage1_languages=`echo $new_enable_languages | \
2297 sed -e "s/^,//" -e "s/,$//" ` ;;
2299 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2300 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2303 # Add "good" languages from enable_stage1_languages to stage1_languages,
2304 # while "bad" languages go in missing_languages. Leave no duplicates.
2305 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2306 case $potential_languages in
2308 case $stage1_languages in
2310 *) stage1_languages="$stage1_languages$i," ;;
2313 case $missing_languages in
2315 *) missing_languages="$missing_languages$i," ;;
2320 # Remove leading/trailing commas that were added for simplicity
2321 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2322 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2323 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2324 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2326 if test "x$missing_languages" != x; then
2328 The following requested languages could not be built: ${missing_languages}
2329 Supported languages are: ${potential_languages}])
2331 if test "x$new_enable_languages" != "x$enable_languages"; then
2332 echo The following languages will be built: ${new_enable_languages}
2333 enable_languages="$new_enable_languages"
2336 AC_SUBST(stage1_languages)
2337 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2340 # Handle --disable-<component> generically.
2341 for dir in $configdirs $build_configdirs $target_configdirs ; do
2342 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2343 varname=`echo $dirname | sed -e s/+/_/g`
2344 if eval test x\${enable_${varname}} "=" xno ; then
2345 noconfigdirs="$noconfigdirs $dir"
2349 # Check for Boehm's garbage collector
2350 AC_ARG_ENABLE(objc-gc,
2351 [AS_HELP_STRING([--enable-objc-gc],
2352 [enable use of Boehm's garbage collector with the
2353 GNU Objective-C runtime])])
2354 AC_ARG_WITH([target-bdw-gc],
2355 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2356 [specify prefix directory for installed bdw-gc package.
2357 Equivalent to --with-target-bdw-gc-include=PATH/include
2358 plus --with-target-bdw-gc-lib=PATH/lib])])
2359 AC_ARG_WITH([target-bdw-gc-include],
2360 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2361 [specify directories for installed bdw-gc include files])])
2362 AC_ARG_WITH([target-bdw-gc-lib],
2363 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2364 [specify directories for installed bdw-gc library])])
2366 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2367 AC_MSG_CHECKING([for bdw garbage collector])
2368 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2369 dnl no bdw-gw options, assume default locations
2370 AC_MSG_RESULT([using bdw-gc in default locations])
2372 dnl bdw-gw options, first error checking, complete checking in libobjc
2373 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2374 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2375 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2376 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2378 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2383 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2384 case ,${enable_languages}, in
2386 # Disable libitm, libsanitizer if we're not building libstdc++
2387 case "${noconfigdirs}" in
2388 *target-libstdc++-v3*)
2389 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2395 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2399 # If gcc/ is not in the source tree then we'll not be building a
2400 # target compiler, assume in that case we don't want to build any
2401 # target libraries or tools.
2403 # This was added primarily for the benefit for binutils-gdb who reuse
2404 # this configure script, but don't always have target tools available.
2405 if test ! -d ${srcdir}/gcc; then
2406 skipdirs="${skipdirs} ${target_configdirs}"
2409 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2410 # $build_configdirs and $target_configdirs.
2411 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2414 for dir in . $skipdirs $noconfigdirs ; do
2415 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2416 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2417 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2418 if test -r $srcdir/$dirname/configure ; then
2419 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2422 notsupp="$notsupp $dir"
2426 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2427 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2428 if test -r $srcdir/$dirname/configure ; then
2429 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2432 notsupp="$notsupp $dir"
2436 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2437 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2438 if test -r $srcdir/$dirname/configure ; then
2439 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2442 notsupp="$notsupp $dir"
2448 # Quietly strip out all directories which aren't configurable in this tree.
2449 # This relies on all configurable subdirectories being autoconfiscated, which
2451 build_configdirs_all="$build_configdirs"
2453 for i in ${build_configdirs_all} ; do
2454 j=`echo $i | sed -e s/build-//g`
2455 if test -f ${srcdir}/$j/configure ; then
2456 build_configdirs="${build_configdirs} $i"
2460 configdirs_all="$configdirs"
2462 for i in ${configdirs_all} ; do
2463 if test -f ${srcdir}/$i/configure ; then
2464 configdirs="${configdirs} $i"
2468 target_configdirs_all="$target_configdirs"
2470 for i in ${target_configdirs_all} ; do
2471 j=`echo $i | sed -e s/target-//g`
2472 if test -f ${srcdir}/$j/configure ; then
2473 target_configdirs="${target_configdirs} $i"
2477 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2478 # so we have to add it after the preceding checks.
2479 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2481 case " $configdirs " in
2483 # If we can build libiberty, we can also build libiberty-linker-plugin.
2484 configdirs="$configdirs libiberty-linker-plugin"
2485 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2486 --with-libiberty=../libiberty-linker-plugin";;
2488 AC_MSG_ERROR([libiberty missing]);;
2492 # Sometimes we have special requirements for the host libiberty.
2493 extra_host_libiberty_configure_flags=
2494 case " $configdirs " in
2495 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
2496 # When these are to be built as shared libraries, the same applies to
2498 extra_host_libiberty_configure_flags=--enable-shared
2501 AC_SUBST(extra_host_libiberty_configure_flags)
2503 # Sometimes we have special requirements for the host zlib.
2504 extra_host_zlib_configure_flags=
2505 case " $configdirs " in
2507 # When bfd is to be built as a shared library, the same applies to
2509 if test "$enable_shared" = "yes"; then
2510 extra_host_zlib_configure_flags=--enable-host-shared
2514 AC_SUBST(extra_host_zlib_configure_flags)
2516 # Produce a warning message for the subdirs we can't configure.
2517 # This isn't especially interesting in the Cygnus tree, but in the individual
2518 # FSF releases, it's important to let people know when their machine isn't
2519 # supported by the one or two programs in a package.
2521 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2522 # If $appdirs is non-empty, at least one of those directories must still
2523 # be configured, or we error out. (E.g., if the gas release supports a
2524 # specified target in some subdirs but not the gas subdir, we shouldn't
2525 # pretend that all is well.)
2526 if test -n "$appdirs" ; then
2527 for dir in $appdirs ; do
2528 if test -r $dir/Makefile.in ; then
2529 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2533 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2539 if test -n "$appdirs" ; then
2540 echo "*** This configuration is not supported by this package." 1>&2
2544 # Okay, some application will build, or we don't care to check. Still
2545 # notify of subdirs not getting built.
2546 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2547 echo " ${notsupp}" 1>&2
2548 echo " (Any other directories should still work fine.)" 1>&2
2556 # To find our prefix, in gcc_cv_tool_prefix.
2561 AC_ARG_WITH([build-sysroot],
2562 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2563 [use sysroot as the system root during the build])],
2564 [if test x"$withval" != x ; then
2565 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2567 [SYSROOT_CFLAGS_FOR_TARGET=])
2568 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2570 AC_ARG_WITH([debug-prefix-map],
2571 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2572 [map A to B, C to D ... in debug information])],
2573 [if test x"$withval" != x; then
2574 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2575 for debug_map in $withval; do
2576 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2579 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2580 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2582 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2583 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2584 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2585 # We want to ensure that TARGET libraries (which we know are built with
2586 # gcc) are built with "-O2 -g", so include those options when setting
2587 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2588 if test "x$CFLAGS_FOR_TARGET" = x; then
2589 if test "x${is_cross_compiler}" = xyes; then
2590 CFLAGS_FOR_TARGET="-g -O2"
2592 CFLAGS_FOR_TARGET=$CFLAGS
2595 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2598 *" -g "* | *" -g3 "*) ;;
2599 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2603 AC_SUBST(CFLAGS_FOR_TARGET)
2605 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2606 if test "x${is_cross_compiler}" = xyes; then
2607 CXXFLAGS_FOR_TARGET="-g -O2"
2609 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2610 case " $CXXFLAGS " in
2612 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2614 case " $CXXFLAGS " in
2615 *" -g "* | *" -g3 "*) ;;
2616 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2620 AC_SUBST(CXXFLAGS_FOR_TARGET)
2622 AC_SUBST(LDFLAGS_FOR_TARGET)
2624 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2625 # the named directory are copied to $(tooldir)/sys-include.
2626 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2627 if test x${is_cross_compiler} = xno ; then
2628 echo 1>&2 '***' --with-headers is only supported when cross compiling
2631 if test x"${with_headers}" != xyes ; then
2632 x=${gcc_cv_tool_prefix}
2633 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2637 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2638 # the name directories are copied to $(tooldir)/lib. Multiple directories
2640 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2641 if test x${is_cross_compiler} = xno ; then
2642 echo 1>&2 '***' --with-libs is only supported when cross compiling
2645 if test x"${with_libs}" != xyes ; then
2646 # Copy the libraries in reverse order, so that files in the first named
2647 # library override files in subsequent libraries.
2648 x=${gcc_cv_tool_prefix}
2649 for l in ${with_libs}; do
2650 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2655 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2657 # This is done by determining whether or not the appropriate directory
2658 # is available, and by checking whether or not specific configurations
2659 # have requested that this magic not happen.
2661 # The command line options always override the explicit settings in
2662 # configure.ac, and the settings in configure.ac override this magic.
2664 # If the default for a toolchain is to use GNU as and ld, and you don't
2665 # want to do that, then you should use the --without-gnu-as and
2666 # --without-gnu-ld options for the configure script. Similarly, if
2667 # the default is to use the included zlib and you don't want to do that,
2668 # you should use the --with-system-zlib option for the configure script.
2670 if test x${use_gnu_as} = x &&
2671 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2673 extra_host_args="$extra_host_args --with-gnu-as"
2676 if test x${use_gnu_ld} = x &&
2677 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2679 extra_host_args="$extra_host_args --with-gnu-ld"
2682 if test x${use_included_zlib} = x &&
2683 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2686 with_system_zlib=yes
2687 extra_host_args="$extra_host_args --with-system-zlib"
2690 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2691 # can detect this case.
2693 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2695 extra_host_args="$extra_host_args --with-newlib"
2698 # Handle ${copy_dirs}
2699 set fnord ${copy_dirs}
2701 while test $# != 0 ; do
2702 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2705 echo Copying $1 to $2
2707 # Use the install script to create the directory and all required
2708 # parent directories.
2709 if test -d $2 ; then
2713 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2716 # Copy the directory, assuming we have tar.
2717 # FIXME: Should we use B in the second tar? Not all systems support it.
2718 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2720 # It is the responsibility of the user to correctly adjust all
2721 # symlinks. If somebody can figure out how to handle them correctly
2722 # here, feel free to add the code.
2729 # Determine a target-dependent exec_prefix that the installed
2730 # gcc will search in. Keep this list sorted by triplet, with
2731 # the *-*-osname triplets last.
2734 i[[34567]]86-pc-msdosdjgpp*)
2735 md_exec_prefix=/dev/env/DJDIR/bin
2740 md_exec_prefix=/usr/ccs/bin
2744 extra_arflags_for_target=
2745 extra_nmflags_for_target=
2746 extra_ranlibflags_for_target=
2747 target_makefile_frag=/dev/null
2750 target_makefile_frag="config/mt-spu"
2752 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2753 target_makefile_frag="config/mt-sde"
2755 mipsisa*-*-elfoabi*)
2756 target_makefile_frag="config/mt-mips-elfoabi"
2758 mips*-*-*linux* | mips*-*-gnu*)
2759 target_makefile_frag="config/mt-mips-gnu"
2762 target_makefile_frag="config/mt-nios2-elf"
2765 target_makefile_frag="config/mt-android"
2767 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2768 target_makefile_frag="config/mt-gnu"
2770 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2771 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2772 # commands to handle both 32-bit and 64-bit objects. These flags are
2773 # harmless if we're using GNU nm or ar.
2774 extra_arflags_for_target=" -X32_64"
2775 extra_nmflags_for_target=" -B -X32_64"
2779 alphaieee_frag=/dev/null
2782 # This just makes sure to use the -mieee option to build target libs.
2783 # This should probably be set individually by each library.
2784 alphaieee_frag="config/mt-alphaieee"
2788 # If --enable-target-optspace always use -Os instead of -O2 to build
2789 # the target libraries, similarly if it is not specified, use -Os
2790 # on selected platforms.
2791 ospace_frag=/dev/null
2792 case "${enable_target_optspace}:${target}" in
2794 ospace_frag="config/mt-ospace"
2797 ospace_frag="config/mt-d30v"
2799 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2800 ospace_frag="config/mt-ospace"
2805 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2809 # Some systems (e.g., one of the i386-aix systems the gas testers are
2810 # using) don't handle "\$" correctly, so don't use it here.
2811 tooldir='${exec_prefix}'/${target_noncanonical}
2812 build_tooldir=${tooldir}
2814 # Create a .gdbinit file which runs the one in srcdir
2815 # and tells GDB to look there for source files.
2817 if test -r ${srcdir}/.gdbinit ; then
2820 *) cat > ./.gdbinit <<EOF
2824 source ${srcdir}/.gdbinit
2830 # Make sure that the compiler is able to generate an executable. If it
2831 # can't, we are probably in trouble. We don't care whether we can run the
2832 # executable--we might be using a cross compiler--we only care whether it
2833 # can be created. At this point the main configure script has set CC.
2835 echo "int main () { return 0; }" > conftest.c
2836 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2837 if test $? = 0 ; then
2838 if test -s conftest || test -s conftest.exe ; then
2844 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2845 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2852 # Decide which environment variable is used to find dynamic libraries.
2854 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2855 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2856 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2857 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2860 # On systems where the dynamic library environment variable is PATH,
2861 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2862 # built executables to PATH.
2863 if test "$RPATH_ENVVAR" = PATH; then
2864 GCC_SHLIB_SUBDIR=/shlib
2869 # Adjust the toplevel makefile according to whether bootstrap was selected.
2870 case $enable_bootstrap in
2872 bootstrap_suffix=bootstrap
2873 BUILD_CONFIG=bootstrap-debug
2876 bootstrap_suffix=no-bootstrap
2881 AC_MSG_CHECKING(for default BUILD_CONFIG)
2883 AC_ARG_WITH([build-config],
2884 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2885 [use config/NAME.mk build configuration])],
2886 [case $with_build_config in
2887 yes) with_build_config= ;;
2888 no) with_build_config= BUILD_CONFIG= ;;
2891 if test "x${with_build_config}" != x; then
2892 BUILD_CONFIG=$with_build_config
2894 case $BUILD_CONFIG in
2896 if echo "int f (void) { return 0; }" > conftest.c &&
2897 ${CC} -c conftest.c &&
2898 mv conftest.o conftest.o.g0 &&
2899 ${CC} -c -g conftest.c &&
2900 mv conftest.o conftest.o.g &&
2901 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2906 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2910 AC_MSG_RESULT($BUILD_CONFIG)
2911 AC_SUBST(BUILD_CONFIG)
2913 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2914 AC_MSG_CHECKING([for --enable-vtable-verify])
2915 AC_ARG_ENABLE(vtable-verify,
2916 [AS_HELP_STRING([--enable-vtable-verify],
2917 [Enable vtable verification feature])],
2918 [case "$enableval" in
2919 yes) enable_vtable_verify=yes ;;
2920 no) enable_vtable_verify=no ;;
2921 *) enable_vtable_verify=no;;
2923 [enable_vtable_verify=no])
2924 AC_MSG_RESULT($enable_vtable_verify)
2926 # Record target_configdirs and the configure arguments for target and
2927 # build configuration in Makefile.
2928 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2929 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2930 bootstrap_fixincludes=no
2932 # If we are building libgomp, bootstrap it.
2933 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2934 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2937 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2938 # or bootstrap-ubsan, bootstrap it.
2939 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2940 case "$BUILD_CONFIG" in
2941 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
2942 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2943 bootstrap_fixincludes=yes
2948 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2949 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2950 test "$enable_vtable_verify" != no; then
2951 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2954 # If we are building libatomic and the list of enabled languages includes the
2955 # D frontend, bootstrap it.
2956 if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
2957 case ,${enable_languages}, in
2959 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
2964 # Determine whether gdb needs tk/tcl or not.
2965 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2966 # and in that case we want gdb to be built without tk. Ugh!
2967 # In fact I believe gdb is the *only* package directly dependent on tk,
2968 # so we should be able to put the 'maybe's in unconditionally and
2969 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2970 # 100% sure that that's safe though.
2972 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2973 case "$enable_gdbtk" in
2977 GDB_TK="${gdb_tk}" ;;
2979 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2980 # distro. Eventually someone will fix this and move Insight, nee
2981 # gdbtk to a separate directory.
2982 if test -d ${srcdir}/gdb/gdbtk ; then
2989 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2990 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2992 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
2993 # else does, only include them if one of these is built. The Makefile
2994 # provides the ordering, so it's enough here to add to the list.
2995 case " ${configdirs} " in
2997 configdirs="${configdirs} gnulib gdbsupport"
3000 configdirs="${configdirs} gnulib gdbsupport"
3003 configdirs="${configdirs} gnulib"
3007 # Strip out unwanted targets.
3009 # While at that, we remove Makefiles if we were started for recursive
3010 # configuration, so that the top-level Makefile reconfigures them,
3011 # like we used to do when configure itself was recursive.
3013 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
3014 # but now we're fixing up the Makefile ourselves with the additional
3015 # commands passed to AC_CONFIG_FILES. Use separate variables
3016 # extrasub-{build,host,target} not because there is any reason to split
3017 # the substitutions up that way, but only to remain below the limit of
3018 # 99 commands in a script, for HP-UX sed.
3020 # Do not nest @if/@endif or @unless/@endunless pairs, because
3021 # configure will not warn you at all.
3023 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
3024 yes:yes:*\ gold\ *:*,c++,*) ;;
3025 yes:yes:*\ gold\ *:*)
3026 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
3031 for module in ${build_configdirs} ; do
3032 if test -z "${no_recursion}" \
3033 && test -f ${build_subdir}/${module}/Makefile; then
3034 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
3035 rm -f ${build_subdir}/${module}/Makefile
3037 extrasub_build="$extrasub_build
3038 /^@if build-$module\$/d
3039 /^@endif build-$module\$/d
3040 /^@unless build-$module\$/,/^@endunless build-$module\$/d
3041 /^@if build-$module-$bootstrap_suffix\$/d
3042 /^@endif build-$module-$bootstrap_suffix\$/d
3043 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
3046 for module in ${configdirs} ; do
3047 if test -z "${no_recursion}"; then
3048 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
3049 if test -f ${file}; then
3050 echo 1>&2 "*** removing ${file} to force reconfigure"
3055 case ${module},${bootstrap_fixincludes} in
3056 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
3057 *) host_bootstrap_suffix=$bootstrap_suffix ;;
3059 extrasub_host="$extrasub_host
3061 /^@endif $module\$/d
3062 /^@unless $module\$/,/^@endunless $module\$/d
3063 /^@if $module-$host_bootstrap_suffix\$/d
3064 /^@endif $module-$host_bootstrap_suffix\$/d
3065 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
3068 for module in ${target_configdirs} ; do
3069 if test -z "${no_recursion}" \
3070 && test -f ${target_subdir}/${module}/Makefile; then
3071 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
3072 rm -f ${target_subdir}/${module}/Makefile
3075 # We only bootstrap target libraries listed in bootstrap_target_libs.
3076 case $bootstrap_target_libs in
3077 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
3078 *) target_bootstrap_suffix=no-bootstrap ;;
3081 extrasub_target="$extrasub_target
3082 /^@if target-$module\$/d
3083 /^@endif target-$module\$/d
3084 /^@unless target-$module\$/,/^@endunless target-$module\$/d
3085 /^@if target-$module-$target_bootstrap_suffix\$/d
3086 /^@endif target-$module-$target_bootstrap_suffix\$/d
3087 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
3090 # Do the final fixup along with target modules.
3091 extrasub_target="$extrasub_target
3096 if test "$enable_pgo_build" != "no"; then
3097 extrasub_build="$extrasub_build
3099 /^@endif pgo-build\$/d"
3102 # Create the serialization dependencies. This uses a temporary file.
3104 AC_ARG_ENABLE([serial-configure],
3105 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3106 [force sequential configuration of
3107 sub-packages for the host, target or build
3108 machine, or all sub-packages])])
3110 case ${enable_serial_configure} in
3112 enable_serial_build_configure=yes
3113 enable_serial_host_configure=yes
3114 enable_serial_target_configure=yes
3118 # These force 'configure's to be done one at a time, to avoid problems
3119 # with contention over a shared config.cache.
3121 echo '# serdep.tmp' > serdep.tmp
3123 test "x${enable_serial_build_configure}" = xyes &&
3124 for item in ${build_configdirs} ; do
3127 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
3132 test "x${enable_serial_host_configure}" = xyes &&
3133 for item in ${configdirs} ; do
3136 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
3141 test "x${enable_serial_target_configure}" = xyes &&
3142 for item in ${target_configdirs} ; do
3145 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
3149 serialization_dependencies=serdep.tmp
3150 AC_SUBST_FILE(serialization_dependencies)
3152 # Base args. Strip norecursion, cache-file, srcdir, host, build,
3153 # target, nonopt, and variable assignments. These are the ones we
3154 # might not want to pass down to subconfigures. The exception being
3155 # --cache-file=/dev/null, which is used to turn off the use of cache
3156 # files altogether, and which should be passed on to subconfigures.
3157 # Also strip program-prefix, program-suffix, and program-transform-name,
3158 # so that we can pass down a consistent program-transform-name.
3163 eval "set -- $ac_configure_args"
3166 if test X"$skip_next" = X"yes"; then
3170 if test X"$keep_next" = X"yes"; then
3173 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3175 baseargs="$baseargs '$ac_arg'"
3176 tbaseargs="$tbaseargs '$ac_arg'"
3181 # Handle separated arguments. Based on the logic generated by
3184 *=* | --config-cache | -C | -disable-* | --disable-* \
3185 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3186 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3187 | -with-* | --with-* | -without-* | --without-* | --x)
3201 --with-* | --without-*)
3202 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3206 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3209 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3218 mpc | mpfr | gmp | isl)
3219 # If we're processing --with-$lib, --with-$lib-include or
3220 # --with-$lib-lib, for one of the libs above, and target is
3221 # different from host, don't pass the current argument to any
3222 # target library's configure.
3223 if test x$is_cross_compiler = xyes; then
3232 --cache-file=/dev/null | \
3233 -cache-file=/dev/null )
3234 # Handled here to avoid the test to skip args below.
3235 baseargs="$baseargs '$ac_arg'"
3236 tbaseargs="$tbaseargs '$ac_arg'"
3237 # Assert: $separate_arg should always be no.
3238 keep_next=$separate_arg
3254 -program-prefix* | \
3255 -program-suffix* | \
3256 -program-transform-name* )
3257 skip_next=$separate_arg
3261 # An option. Add it.
3264 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3266 baseargs="$baseargs '$ac_arg'"
3267 if test X"$skip_targ" = Xno; then
3268 tbaseargs="$tbaseargs '$ac_arg'"
3270 keep_next=$separate_arg
3273 # Either a variable assignment, or a nonopt (triplet). Don't
3274 # pass it down; let the Makefile handle this.
3279 # Remove the initial space we just introduced and, as these will be
3280 # expanded by make, quote '$'.
3281 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3283 # Add in --program-transform-name, after --program-prefix and
3284 # --program-suffix have been applied to it. Autoconf has already
3285 # doubled dollar signs and backslashes in program_transform_name; we want
3286 # the backslashes un-doubled, and then the entire thing wrapped in single
3287 # quotes, because this will be expanded first by make and then by the shell.
3288 # Also, because we want to override the logic in subdir configure scripts to
3289 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3290 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3291 ${program_transform_name}
3293 gcc_transform_name=`cat conftestsed.out`
3294 rm -f conftestsed.out
3295 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3296 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3297 if test "$silent" = yes; then
3298 baseargs="$baseargs --silent"
3299 tbaseargs="$tbaseargs --silent"
3302 baseargs="$baseargs --disable-option-checking"
3303 tbaseargs="$tbaseargs --disable-option-checking"
3305 if test "$enable_year2038" = no; then
3306 baseargs="$baseargs --disable-year2038"
3307 tbaseargs="$tbaseargs --disable-year2038"
3310 # Record and document user additions to sub configure arguments.
3311 AC_ARG_VAR([build_configargs],
3312 [additional configure arguments for build directories])
3313 AC_ARG_VAR([host_configargs],
3314 [additional configure arguments for host directories])
3315 AC_ARG_VAR([target_configargs],
3316 [additional configure arguments for target directories])
3318 # For the build-side libraries, we just need to pretend we're native,
3319 # and not use the same cache file. Multilibs are neither needed nor
3320 # desired. We can't even use the same cache file for all build-side
3321 # libraries, as they're compiled differently; some with C, some with
3322 # C++ or with different feature-enabling options.
3323 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3325 # For host modules, accept cache file option, or specification as blank.
3326 case "${cache_file}" in
3328 cache_file_option="" ;;
3329 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3330 cache_file_option="--cache-file=${cache_file}" ;;
3332 cache_file_option="--cache-file=../${cache_file}" ;;
3335 # Host dirs don't like to share a cache file either, horribly enough.
3336 # This seems to be due to autoconf 2.5x stupidity.
3337 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3339 target_configargs="$target_configargs ${tbaseargs}"
3341 # Passing a --with-cross-host argument lets the target libraries know
3342 # whether they are being built with a cross-compiler or being built
3343 # native. However, it would be better to use other mechanisms to make the
3344 # sorts of decisions they want to make on this basis. Please consider
3345 # this option to be deprecated. FIXME.
3346 if test x${is_cross_compiler} = xyes ; then
3347 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3350 # Special user-friendly check for native x86_64-linux build, if
3351 # multilib is not explicitly enabled.
3352 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3353 x86_64-*linux*:yes:$build:$build:)
3354 # Make sure we have a development environment that handles 32-bit
3356 echo "int main () { return 0; }" > conftest.c
3357 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3358 if test $? = 0 ; then
3359 if test -s conftest || test -s conftest.exe ; then
3364 if test x${dev64} != xyes ; then
3365 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.])
3370 # Default to --enable-multilib.
3371 if test x${enable_multilib} = x ; then
3372 target_configargs="--enable-multilib ${target_configargs}"
3375 # Pass --with-newlib if appropriate. Note that target_configdirs has
3376 # changed from the earlier setting of with_newlib.
3377 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3378 target_configargs="--with-newlib ${target_configargs}"
3381 # Different target subdirs use different values of certain variables
3382 # (notably CXX). Worse, multilibs use *lots* of different values.
3383 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3384 # it doesn't automatically accept command-line overrides of them.
3385 # This means it's not safe for target subdirs to share a cache file,
3386 # which is disgusting, but there you have it. Hopefully this can be
3387 # fixed in future. It's still worthwhile to use a cache file for each
3388 # directory. I think.
3390 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3391 # We need to pass --target, as newer autoconf's requires consistency
3392 # for target_alias and gcc doesn't manage it consistently.
3393 target_configargs="--cache-file=./config.cache ${target_configargs}"
3396 case " $target_configdirs " in
3398 case " $target_configargs " in
3399 *" --with-newlib "*)
3402 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3406 # If we're not building GCC, don't discard standard headers.
3407 if test -d ${srcdir}/gcc; then
3408 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3410 if test "${build}" != "${host}"; then
3411 # On Canadian crosses, CC_FOR_TARGET will have already been set
3412 # by `configure', so we won't have an opportunity to add -Bgcc/
3413 # to it. This is right: we don't want to search that directory
3414 # for binaries, but we want the header files in there, so add
3416 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3418 # Someone might think of using the pre-installed headers on
3419 # Canadian crosses, in case the installed compiler is not fully
3420 # compatible with the compiler being built. In this case, it
3421 # would be better to flag an error than risking having
3422 # incompatible object files being constructed. We can't
3423 # guarantee that an error will be flagged, but let's hope the
3424 # compiler will do it, when presented with incompatible header
3429 case "${target}-${is_cross_compiler}" in
3430 i[[3456789]]86-*-linux*-no)
3431 # Here host == target, so we don't need to build gcc,
3432 # so we don't want to discard standard headers.
3433 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3436 # If we're building newlib, use its generic headers last, but search
3437 # for any libc-related directories first (so make it the last -B
3439 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3441 # If we're building libgloss, find the startup file, simulator library
3442 # and linker script.
3443 case " $target_configdirs " in
3445 # Look for startup file, simulator library and maybe linker script.
3446 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3447 # Look for libnosys.a in case the target needs it.
3448 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3449 # Most targets have the linker script in the source directory.
3450 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3461 x86_64-*mingw* | *-w64-mingw*)
3462 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3463 # however, use a symlink named 'mingw' in ${prefix} .
3464 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3467 # MinGW can't be handled as Cygwin above since it does not use newlib.
3468 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3472 # Allow the user to override the flags for
3473 # our build compiler if desired.
3474 if test x"${build}" = x"${host}" ; then
3475 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3476 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
3477 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3478 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3481 # On Canadian crosses, we'll be searching the right directories for
3482 # the previously-installed cross compiler, so don't bother to add
3483 # flags for directories within the install tree of the compiler
3484 # being built; programs in there won't even run.
3485 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3486 # Search for pre-installed headers if nothing else fits.
3487 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3490 if test "x${use_gnu_ld}" = x &&
3491 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3492 # Arrange for us to find uninstalled linker scripts.
3493 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3496 # Search for other target-specific linker scripts and such.
3499 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3501 # The VxWorks support for shared libraries is getting in
3502 # incrementally. Make sure it doesn't get activated implicitly:
3504 if test "${enable_shared-unset}" = unset ; then
3506 # So the build of libraries knows ...
3507 target_configargs="${target_configargs} --disable-shared"
3509 host_configargs="${host_configargs} --disable-shared"
3514 # Makefile fragments.
3515 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3517 eval fragval=\$$frag
3518 if test $fragval != /dev/null; then
3519 eval $frag=${srcdir}/$fragval
3522 AC_SUBST_FILE(host_makefile_frag)
3523 AC_SUBST_FILE(target_makefile_frag)
3524 AC_SUBST_FILE(alphaieee_frag)
3525 AC_SUBST_FILE(ospace_frag)
3527 # Miscellanea: directories, flags, etc.
3528 AC_SUBST(RPATH_ENVVAR)
3529 AC_SUBST(GCC_SHLIB_SUBDIR)
3531 AC_SUBST(build_tooldir)
3532 AC_SUBST(CONFIGURE_GDB_TK)
3534 AC_SUBST(INSTALL_GDB_TK)
3536 # Build module lists & subconfigure args.
3537 AC_SUBST(build_configargs)
3538 AC_SUBST(build_configdirs)
3540 # Host module lists & subconfigure args.
3541 AC_SUBST(host_configargs)
3542 AC_SUBST(configdirs)
3543 AC_SUBST(target_configdirs)
3545 # Target module lists & subconfigure args.
3546 AC_SUBST(target_configargs)
3550 AC_SUBST(AR_FOR_BUILD)
3551 AC_SUBST(AS_FOR_BUILD)
3552 AC_SUBST(CC_FOR_BUILD)
3553 AC_SUBST(CFLAGS_FOR_BUILD)
3554 AC_SUBST(CPP_FOR_BUILD)
3555 AC_SUBST(CPPFLAGS_FOR_BUILD)
3556 AC_SUBST(CXXFLAGS_FOR_BUILD)
3557 AC_SUBST(CXX_FOR_BUILD)
3558 AC_SUBST(DLLTOOL_FOR_BUILD)
3559 AC_SUBST(DSYMUTIL_FOR_BUILD)
3560 AC_SUBST(GFORTRAN_FOR_BUILD)
3561 AC_SUBST(GOC_FOR_BUILD)
3562 AC_SUBST(GDC_FOR_BUILD)
3563 AC_SUBST(LDFLAGS_FOR_BUILD)
3564 AC_SUBST(LD_FOR_BUILD)
3565 AC_SUBST(NM_FOR_BUILD)
3566 AC_SUBST(RANLIB_FOR_BUILD)
3567 AC_SUBST(WINDMC_FOR_BUILD)
3568 AC_SUBST(WINDRES_FOR_BUILD)
3570 # Generate default definitions for YACC, M4, LEX and other programs that run
3571 # on the build machine. These are used if the Makefile can't locate these
3572 # programs in objdir.
3573 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3575 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3576 case " $build_configdirs " in
3577 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3580 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3581 case " $build_configdirs " in
3582 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3585 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3586 case " $build_configdirs " in
3587 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3590 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3591 case " $build_configdirs " in
3592 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3593 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3596 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3597 case " $build_configdirs " in
3598 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3601 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3602 case " $build_configdirs " in
3603 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3606 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3607 # higher, else we use the "missing" dummy.
3608 if ${MAKEINFO} --version \
3609 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3612 MAKEINFO="$MISSING makeinfo"
3618 # FIXME: expect and dejagnu may become build tools?
3620 AC_CHECK_PROGS(EXPECT, expect, expect)
3621 case " $configdirs " in
3623 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3627 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3628 case " $configdirs " in
3630 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3636 NCN_STRICT_CHECK_TOOLS(AR, ar)
3637 NCN_STRICT_CHECK_TOOLS(AS, as)
3638 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3639 NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
3640 NCN_STRICT_CHECK_TOOLS(LD, ld)
3641 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3642 NCN_STRICT_CHECK_TOOLS(NM, nm)
3643 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3644 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3645 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3646 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3647 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3648 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3649 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3650 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3657 AC_SUBST(PKG_CONFIG_PATH)
3659 GCC_PLUGIN_OPTION(PLUGIN_OPTION)
3661 RANLIB_PLUGIN_OPTION=
3662 if test -n "$PLUGIN_OPTION"; then
3663 if $AR --help 2>&1 | grep -q "\--plugin"; then
3664 AR_PLUGIN_OPTION="$PLUGIN_OPTION"
3666 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
3667 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
3670 AC_SUBST(AR_PLUGIN_OPTION)
3671 AC_SUBST(RANLIB_PLUGIN_OPTION)
3674 AC_ARG_WITH([build-time-tools],
3675 [AS_HELP_STRING([--with-build-time-tools=PATH],
3676 [use given path to find target tools during the build])],
3677 [case x"$withval" in
3680 with_build_time_tools=
3681 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3684 [with_build_time_tools=])
3686 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3687 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3688 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3689 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3690 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3691 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3693 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3694 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3695 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3696 ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
3697 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3698 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3699 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3700 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3701 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3702 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3703 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3704 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3705 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3706 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3707 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3709 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3711 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3712 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3713 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3714 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3715 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3716 [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],
3718 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3719 [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],
3721 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3722 GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
3723 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3724 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3725 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3726 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3727 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3728 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3729 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3730 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3731 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3732 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3733 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3734 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3735 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3736 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3737 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3738 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3739 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3740 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3742 AC_SUBST(FLAGS_FOR_TARGET)
3743 AC_SUBST(RAW_CXX_FOR_TARGET)
3745 # Certain tools may need extra flags.
3746 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3747 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3748 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3750 # When building target libraries, except in a Canadian cross, we use
3751 # the same toolchain as the compiler we just built.
3752 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3753 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3754 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3755 if test $host = $build; then
3756 case " $configdirs " in
3758 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3759 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3760 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3765 AC_SUBST(COMPILER_AS_FOR_TARGET)
3766 AC_SUBST(COMPILER_LD_FOR_TARGET)
3767 AC_SUBST(COMPILER_NM_FOR_TARGET)
3769 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3770 AC_ARG_ENABLE(maintainer-mode,
3771 [AS_HELP_STRING([--enable-maintainer-mode],
3772 [enable make rules and dependencies not useful
3773 (and sometimes confusing) to the casual installer])],
3774 USE_MAINTAINER_MODE=$enableval,
3775 USE_MAINTAINER_MODE=no)
3776 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3777 AC_SUBST(MAINTAINER_MODE_TRUE)
3778 AC_SUBST(MAINTAINER_MODE_FALSE)
3779 if test "$USE_MAINTAINER_MODE" = yes; then
3780 MAINTAINER_MODE_TRUE=
3781 MAINTAINER_MODE_FALSE='#'
3783 MAINTAINER_MODE_TRUE='#'
3784 MAINTAINER_MODE_FALSE=
3786 MAINT=$MAINTAINER_MODE_TRUE
3789 # ---------------------
3790 # GCC bootstrap support
3791 # ---------------------
3793 # Stage specific cflags for build.
3798 yes) stage1_cflags="-g -Wa,-J" ;;
3799 *) stage1_cflags="-g -J" ;;
3803 AC_SUBST(stage1_cflags)
3805 # Enable --enable-checking in stage1 of the compiler.
3806 AC_ARG_ENABLE(stage1-checking,
3807 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3808 [choose additional checking for stage1 of the compiler])],
3809 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3810 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3811 # For --disable-checking or implicit --enable-checking=release, avoid
3812 # setting --enable-checking=gc in the default stage1 checking for LTO
3813 # bootstraps. See PR62077.
3814 case $BUILD_CONFIG in
3816 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3818 stage1_checking=--enable-checking=yes,types;;
3820 if test "x$enable_checking" = x && \
3821 test -d ${srcdir}/gcc && \
3822 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3823 stage1_checking=--enable-checking=yes,types,extra
3826 stage1_checking=--enable-checking=$enable_checking,types
3828 AC_SUBST(stage1_checking)
3830 # Enable -Werror in bootstrap stage2 and later.
3831 AC_ARG_ENABLE(werror,
3832 [AS_HELP_STRING([--enable-werror],
3833 [enable -Werror in bootstrap stage2 and later])],
3835 case ${enable_werror} in
3836 yes) stage2_werror_flag="--enable-werror-always" ;;
3837 *) stage2_werror_flag="" ;;
3841 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3842 case $BUILD_CONFIG in
3844 stage2_werror_flag="--enable-werror-always" ;;
3846 stage2_werror_flag="--enable-werror-always" ;;
3851 AC_SUBST(stage2_werror_flag)
3853 # Specify what files to not compare during bootstrap.
3855 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3857 hppa*64*-*-hpux*) ;;
3858 hppa*-*-hpux*) compare_exclusions="$compare_exclusions | */libgcc/lib2funcs* | gcc/function-tests.o" ;;
3859 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
3861 AC_SUBST(compare_exclusions)
3863 AC_CONFIG_FILES([Makefile],
3864 [sed "$extrasub_build" Makefile |
3865 sed "$extrasub_host" |
3866 sed "$extrasub_target" > mf$$
3867 mv -f mf$$ Makefile],
3868 [extrasub_build="$extrasub_build"
3869 extrasub_host="$extrasub_host"
3870 extrasub_target="$extrasub_target"])