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Add assembler and disassembler support for the new Armv8.4-a instructions for AArch64.
[deliverable/binutils-gdb.git] / configure.ac
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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, 2017 Free Software Foundation, Inc.
4#
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.
9#
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.
14#
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/>.
18
19##############################################################################
20### WARNING: this file contains embedded tabs. Do not run untabify on this file.
21
22m4_include(config/acx.m4)
23m4_include(config/override.m4)
24m4_include(config/proginstall.m4)
25m4_include(config/elf.m4)
26m4_include([libtool.m4])
27m4_include([ltoptions.m4])
28m4_include([ltsugar.m4])
29m4_include([ltversion.m4])
30m4_include([lt~obsolete.m4])
31m4_include([config/isl.m4])
32
33AC_INIT(move-if-change)
34AC_PREREQ(2.64)
35AC_DISABLE_OPTION_CHECKING
36
37progname=$0
38# if PWD already has a value, it is probably wrong.
39if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
40
41# Export original configure arguments for use by sub-configures.
42# Quote arguments with shell meta charatcers.
43TOPLEVEL_CONFIGURE_ARGUMENTS=
44set -- "$progname" "$@"
45for ac_arg
46do
47 case "$ac_arg" in
48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
50 # if the argument is of the form -foo=baz, quote the baz part only
51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
52 *) ;;
53 esac
54 # Add the quoted argument to the list.
55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
56done
57if test "$silent" = yes; then
58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
59fi
60# Remove the initial space we just introduced and, as these will be
61# expanded by make, quote '$'.
62TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
63AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
64
65# Find the build, host, and target systems.
66ACX_NONCANONICAL_BUILD
67ACX_NONCANONICAL_HOST
68ACX_NONCANONICAL_TARGET
69
70dnl Autoconf 2.5x and later will set a default program prefix if
71dnl --target was used, even if it was the same as --host. Disable
72dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
73dnl to take effect.
74test "$host_noncanonical" = "$target_noncanonical" &&
75 test "$program_prefix$program_suffix$program_transform_name" = \
76 NONENONEs,x,x, &&
77 program_transform_name=s,y,y,
78
79AC_CANONICAL_SYSTEM
80AC_ARG_PROGRAM
81
82m4_pattern_allow([^AS_FOR_TARGET$])dnl
83m4_pattern_allow([^AS_FOR_BUILD$])dnl
84
85# Get 'install' or 'install-sh' and its variants.
86AC_PROG_INSTALL
87ACX_PROG_LN
88AC_PROG_LN_S
89AC_PROG_SED
90AC_PROG_AWK
91
92srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
93
94# We pass INSTALL explicitly to sub-makes. Make sure that it is not
95# a relative path.
96if test "$INSTALL" = "${srcdir}/install-sh -c"; then
97 INSTALL="${srcpwd}/install-sh -c"
98fi
99
100# Set srcdir to "." if that's what it is.
101# This is important for multilib support.
102pwd=`${PWDCMD-pwd}`
103if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105fi
106
107topsrcdir=$srcpwd
108
109extra_host_args=
110
111### To add a new directory to the tree, first choose whether it is a target
112### or a host dependent tool. Then put it into the appropriate list
113### (library or tools, host or target), doing a dependency sort.
114
115# Subdirs will be configured in the order listed in build_configdirs,
116# configdirs, or target_configdirs; see the serialization section below.
117
118# Dependency sorting is only needed when *configuration* must be done in
119# a particular order. In all cases a dependency should be specified in
120# the Makefile, whether or not it's implicitly specified here.
121
122# Double entries in build_configdirs, configdirs, or target_configdirs may
123# cause circular dependencies and break everything horribly.
124
125# these library is used by various programs built for the build
126# environment
127#
128build_libs="build-libiberty build-libcpp"
129
130# these tools are built for the build environment
131build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
132
133# these libraries are used by various programs built for the host environment
134#f
135host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv"
136
137# these tools are built for the host environment
138# Note, the powerpc-eabi build depends on sim occurring before gdb in order to
139# know that we are building the simulator.
140# binutils, gas and ld appear in that order because it makes sense to run
141# "make check" in that particular order.
142# If --enable-gold is used, "gold" may replace "ld".
143host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools"
144
145# these libraries are built for the target environment, and are built after
146# the host libraries and the host tools (which may be a cross compiler)
147# Note that libiberty is not a target library.
148target_libraries="target-libgcc \
149 target-libbacktrace \
150 target-libgloss \
151 target-newlib \
152 target-libgomp \
153 target-libcilkrts \
154 target-liboffloadmic \
155 target-libatomic \
156 target-libitm \
157 target-libstdc++-v3 \
158 target-libsanitizer \
159 target-libvtv \
160 target-libmpx \
161 target-libssp \
162 target-libquadmath \
163 target-libgfortran \
164 target-libffi \
165 target-libobjc \
166 target-libada \
167 target-libgo"
168
169# these tools are built using the target libraries, and are intended to
170# run only in the target environment
171#
172# note: any program that *uses* libraries that are in the "target_libraries"
173# list belongs in this list.
174#
175target_tools="target-rda"
176
177################################################################################
178
179## All tools belong in one of the four categories, and are assigned above
180## We assign ${configdirs} this way to remove all embedded newlines. This
181## is important because configure will choke if they ever get through.
182## ${configdirs} is directories we build using the host tools.
183## ${target_configdirs} is directories we build using the target tools.
184configdirs=`echo ${host_libs} ${host_tools}`
185target_configdirs=`echo ${target_libraries} ${target_tools}`
186build_configdirs=`echo ${build_libs} ${build_tools}`
187
188m4_divert_text([PARSE_ARGS],
189[case $srcdir in
190 *" "*)
191m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
192 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
193m4_popdef([AS_MESSAGE_LOG_FD])dnl
194 ;;
195esac
196ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
197])
198
199################################################################################
200
201srcname="gnu development package"
202
203# This gets set non-empty for some net releases of packages.
204appdirs=""
205
206# Define is_cross_compiler to save on calls to 'test'.
207is_cross_compiler=
208if test x"${host}" = x"${target}" ; then
209 is_cross_compiler=no
210else
211 is_cross_compiler=yes
212fi
213
214# Find the build and target subdir names.
215GCC_TOPLEV_SUBDIRS
216# Be sure to cover against remnants of an in-tree build.
217if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
218 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
219Use a pristine source tree when building in a separate tree])
220fi
221
222# Skipdirs are removed silently.
223skipdirs=
224# Noconfigdirs are removed loudly.
225noconfigdirs=""
226
227use_gnu_ld=
228# Make sure we don't let GNU ld be added if we didn't want it.
229if test x$with_gnu_ld = xno ; then
230 use_gnu_ld=no
231 noconfigdirs="$noconfigdirs ld gold"
232fi
233
234use_gnu_as=
235# Make sure we don't let GNU as be added if we didn't want it.
236if test x$with_gnu_as = xno ; then
237 use_gnu_as=no
238 noconfigdirs="$noconfigdirs gas"
239fi
240
241use_included_zlib=
242AC_ARG_WITH(system-zlib,
243[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
244# Make sure we don't let ZLIB be added if we didn't want it.
245if test x$with_system_zlib = xyes ; then
246 use_included_zlib=no
247 noconfigdirs="$noconfigdirs zlib"
248fi
249
250# some tools are so dependent upon X11 that if we're not building with X,
251# it's not even worth trying to configure, much less build, that tool.
252
253case ${with_x} in
254 yes | "") ;; # the default value for this tree is that X11 is available
255 no)
256 skipdirs="${skipdirs} tk itcl libgui"
257 # We won't be able to build gdbtk without X.
258 enable_gdbtk=no
259 ;;
260 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
261esac
262
263# Some are only suitable for cross toolchains.
264# Remove these if host=target.
265cross_only="target-libgloss target-newlib target-opcodes"
266
267case $is_cross_compiler in
268 no) skipdirs="${skipdirs} ${cross_only}" ;;
269esac
270
271# If both --with-headers and --with-libs are specified, default to
272# --without-newlib.
273if test x"${with_headers}" != x && test x"${with_headers}" != xno \
274 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
275 if test x"${with_newlib}" = x ; then
276 with_newlib=no
277 fi
278fi
279
280# Recognize --with-newlib/--without-newlib.
281case ${with_newlib} in
282 no) skipdirs="${skipdirs} target-newlib" ;;
283 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
284esac
285
286AC_ARG_ENABLE(as-accelerator-for,
287[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
288 [build as offload target compiler.
289 Specify offload host triple by ARG])])
290
291AC_ARG_ENABLE(offload-targets,
292[AS_HELP_STRING([--enable-offload-targets=LIST],
293 [enable offloading to devices from comma-separated LIST of
294 TARGET[=DIR]. Use optional path to find offload target compiler
295 during the build])],
296[
297 if test x"$enable_offload_targets" = x; then
298 AC_MSG_ERROR([no offload targets specified])
299 fi
300], [enable_offload_targets=])
301
302# Handle --enable-gold, --enable-ld.
303# --disable-gold [--enable-ld]
304# Build only ld. Default option.
305# --enable-gold [--enable-ld]
306# Build both gold and ld. Install gold as "ld.gold", install ld
307# as "ld.bfd" and "ld".
308# --enable-gold=default [--enable-ld]
309# Build both gold and ld. Install gold as "ld.gold" and "ld",
310# install ld as "ld.bfd".
311# --enable-gold[=default] --disable-ld
312# Build only gold, which is then installed as both "ld.gold" and "ld".
313# --enable-gold --enable-ld=default
314# Build both gold (installed as "ld.gold") and ld (installed as "ld"
315# and ld.bfd).
316# In other words, ld is default
317# --enable-gold=default --enable-ld=default
318# Error.
319
320default_ld=
321AC_ARG_ENABLE(gold,
322[AS_HELP_STRING([[--enable-gold[=ARG]]],
323 [build gold @<:@ARG={default,yes,no}@:>@])],
324ENABLE_GOLD=$enableval,
325ENABLE_GOLD=no)
326case "${ENABLE_GOLD}" in
327 yes|default)
328 # Check for ELF target.
329 is_elf=no
330 case "${target}" in
331 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
332 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
333 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
334 | *-*-solaris2* | *-*-nto* | *-*-nacl* | *-*-fuchsia*)
335 case "${target}" in
336 *-*-linux*aout* | *-*-linux*oldld*)
337 ;;
338 *)
339 is_elf=yes
340 ;;
341 esac
342 esac
343
344 if test "$is_elf" = "yes"; then
345 # Check for target supported by gold.
346 case "${target}" in
347 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
348 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
349 configdirs="$configdirs gold"
350 if test x${ENABLE_GOLD} = xdefault; then
351 default_ld=gold
352 fi
353 ENABLE_GOLD=yes
354 ;;
355 esac
356 fi
357 ;;
358 no)
359 ;;
360 *)
361 AC_MSG_ERROR([invalid --enable-gold argument])
362 ;;
363esac
364
365AC_ARG_ENABLE(ld,
366[AS_HELP_STRING([[--enable-ld[=ARG]]],
367 [build ld @<:@ARG={default,yes,no}@:>@])],
368ENABLE_LD=$enableval,
369ENABLE_LD=yes)
370
371case "${ENABLE_LD}" in
372 default)
373 if test x${default_ld} != x; then
374 AC_MSG_ERROR([either gold or ld can be the default ld])
375 fi
376 ;;
377 yes)
378 ;;
379 no)
380 if test x${ENABLE_GOLD} != xyes; then
381 AC_MSG_WARN([neither ld nor gold are enabled])
382 fi
383 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
384 ;;
385 *)
386 AC_MSG_ERROR([invalid --enable-ld argument])
387 ;;
388esac
389
390# PR gas/19109
391# Decide the default method for compressing debug sections.
392# Provide a configure time option to override our default.
393AC_ARG_ENABLE(compressed_debug_sections,
394[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
395 [Enable compressed debug sections for gas, gold or ld by
396 default])],
397[
398 if test x"$enable_compressed_debug_sections" = xyes; then
399 AC_MSG_ERROR([no program with compressed debug sections specified])
400 fi
401], [enable_compressed_debug_sections=])
402
403# Configure extra directories which are host specific
404
405case "${host}" in
406 *-cygwin*)
407 configdirs="$configdirs libtermcap" ;;
408esac
409
410# A target can indicate whether a language isn't supported for some reason.
411# Only spaces may be used in this macro; not newlines or tabs.
412unsupported_languages=
413
414# Remove more programs from consideration, based on the host or
415# target this usually means that a port of the program doesn't
416# exist yet.
417
418case "${host}" in
419 i[[3456789]]86-*-msdosdjgpp*)
420 noconfigdirs="$noconfigdirs tcl tk itcl"
421 ;;
422esac
423
424
425AC_ARG_ENABLE(libquadmath,
426AS_HELP_STRING([--disable-libquadmath],
427 [do not build libquadmath directory]),
428ENABLE_LIBQUADMATH=$enableval,
429ENABLE_LIBQUADMATH=yes)
430if test "${ENABLE_LIBQUADMATH}" = "no" ; then
431 noconfigdirs="$noconfigdirs target-libquadmath"
432fi
433
434
435AC_ARG_ENABLE(libquadmath-support,
436AS_HELP_STRING([--disable-libquadmath-support],
437 [disable libquadmath support for Fortran]),
438ENABLE_LIBQUADMATH_SUPPORT=$enableval,
439ENABLE_LIBQUADMATH_SUPPORT=yes)
440enable_libquadmath_support=
441if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
442 enable_libquadmath_support=no
443fi
444
445
446AC_ARG_ENABLE(libada,
447[AS_HELP_STRING([--enable-libada], [build libada directory])],
448ENABLE_LIBADA=$enableval,
449ENABLE_LIBADA=yes)
450if test "${ENABLE_LIBADA}" != "yes" ; then
451 noconfigdirs="$noconfigdirs gnattools"
452fi
453
454AC_ARG_ENABLE(libssp,
455[AS_HELP_STRING([--enable-libssp], [build libssp directory])],
456ENABLE_LIBSSP=$enableval,
457ENABLE_LIBSSP=yes)
458
459AC_ARG_ENABLE(libstdcxx,
460AS_HELP_STRING([--disable-libstdcxx],
461 [do not build libstdc++-v3 directory]),
462ENABLE_LIBSTDCXX=$enableval,
463ENABLE_LIBSTDCXX=default)
464[if test "${ENABLE_LIBSTDCXX}" = "no" ; then
465 noconfigdirs="$noconfigdirs target-libstdc++-v3"
466fi]
467
468# If this is accelerator compiler and its target is intelmic we enable
469# target liboffloadmic by default. If this is compiler with offloading
470# for intelmic we enable host liboffloadmic by default. Otherwise
471# liboffloadmic is disabled by default.
472AC_ARG_ENABLE([liboffloadmic],
473AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
474 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
475[case "$enableval" in
476 no | host | target)
477 enable_liboffloadmic=$enableval ;;
478 *)
479 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
480esac],
481[if test x"$enable_as_accelerator_for" != x; then
482 case "${target}" in
483 *-intelmic-* | *-intelmicemul-*)
484 enable_liboffloadmic=target
485 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
486 ;;
487 *)
488 enable_liboffloadmic=no
489 ;;
490 esac
491else
492 case "${enable_offload_targets}" in
493 *-intelmic-* | *-intelmicemul-*)
494 enable_liboffloadmic=host
495 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
496 ;;
497 *)
498 enable_liboffloadmic=no
499 ;;
500 esac
501fi])
502AC_SUBST(extra_liboffloadmic_configure_flags)
503
504# Enable libgomp by default on hosted POSIX systems, and a few others.
505if test x$enable_libgomp = x ; then
506 case "${target}" in
507 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
508 ;;
509 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
510 ;;
511 *-*-solaris2* | *-*-hpux11*)
512 ;;
513 *-*-darwin* | *-*-aix*)
514 ;;
515 nvptx*-*-*)
516 ;;
517 *)
518 noconfigdirs="$noconfigdirs target-libgomp"
519 ;;
520 esac
521fi
522
523# Disable libatomic on unsupported systems.
524if test -d ${srcdir}/libatomic; then
525 if test x$enable_libatomic = x; then
526 AC_MSG_CHECKING([for libatomic support])
527 if (srcdir=${srcdir}/libatomic; \
528 . ${srcdir}/configure.tgt; \
529 test -n "$UNSUPPORTED")
530 then
531 AC_MSG_RESULT([no])
532 noconfigdirs="$noconfigdirs target-libatomic"
533 else
534 AC_MSG_RESULT([yes])
535 fi
536 fi
537fi
538
539# Disable libcilkrts on unsupported systems.
540if test -d ${srcdir}/libcilkrts; then
541 if test x$enable_libcilkrts = x; then
542 AC_MSG_CHECKING([for libcilkrts support])
543 if (srcdir=${srcdir}/libcilkrts; \
544 . ${srcdir}/configure.tgt; \
545 test -n "$UNSUPPORTED")
546 then
547 AC_MSG_RESULT([no])
548 noconfigdirs="$noconfigdirs target-libcilkrts"
549 else
550 AC_MSG_RESULT([yes])
551 fi
552 fi
553fi
554
555# Disable liboffloadmic on unsupported systems.
556if test -d ${srcdir}/liboffloadmic; then
557 if test x$enable_liboffloadmic != xno; then
558 AC_MSG_CHECKING([for liboffloadmic support])
559 if (srcdir=${srcdir}/liboffloadmic; \
560 . ${srcdir}/configure.tgt; \
561 test -n "$UNSUPPORTED")
562 then
563 AC_MSG_RESULT([no])
564 noconfigdirs="$noconfigdirs target-liboffloadmic"
565 else
566 AC_MSG_RESULT([yes])
567 fi
568 fi
569fi
570
571# Disable libitm on unsupported systems.
572if test -d ${srcdir}/libitm; then
573 if test x$enable_libitm = x; then
574 AC_MSG_CHECKING([for libitm support])
575 if (srcdir=${srcdir}/libitm; \
576 . ${srcdir}/configure.tgt; \
577 test -n "$UNSUPPORTED")
578 then
579 AC_MSG_RESULT([no])
580 noconfigdirs="$noconfigdirs target-libitm"
581 else
582 AC_MSG_RESULT([yes])
583 fi
584 fi
585fi
586
587# Disable libsanitizer on unsupported systems.
588if test -d ${srcdir}/libsanitizer; then
589 if test x$enable_libsanitizer = x; then
590 AC_MSG_CHECKING([for libsanitizer support])
591 if (srcdir=${srcdir}/libsanitizer; \
592 . ${srcdir}/configure.tgt; \
593 test -n "$UNSUPPORTED")
594 then
595 AC_MSG_RESULT([no])
596 noconfigdirs="$noconfigdirs target-libsanitizer"
597 else
598 AC_MSG_RESULT([yes])
599 fi
600 fi
601fi
602
603# Disable libvtv on unsupported systems.
604if test -d ${srcdir}/libvtv; then
605 if test x$enable_libvtv = x; then
606 AC_MSG_CHECKING([for libvtv support])
607 if (srcdir=${srcdir}/libvtv; \
608 . ${srcdir}/configure.tgt; \
609 test "$VTV_SUPPORTED" != "yes")
610 then
611 AC_MSG_RESULT([no])
612 noconfigdirs="$noconfigdirs target-libvtv"
613 else
614 AC_MSG_RESULT([yes])
615 fi
616 fi
617fi
618
619
620# Enable libmpx on supported systems by request.
621if test -d ${srcdir}/libmpx; then
622 if test x$enable_libmpx = x; then
623 AC_MSG_CHECKING([for libmpx support])
624 if (srcdir=${srcdir}/libmpx; \
625 . ${srcdir}/configure.tgt; \
626 test "$LIBMPX_SUPPORTED" != "yes")
627 then
628 AC_MSG_RESULT([no])
629 noconfigdirs="$noconfigdirs target-libmpx"
630 else
631 AC_MSG_RESULT([yes])
632 fi
633 fi
634fi
635
636
637
638# Disable libquadmath for some systems.
639case "${target}" in
640 avr-*-*)
641 noconfigdirs="$noconfigdirs target-libquadmath"
642 ;;
643 # libquadmath is unused on AIX and libquadmath build process use of
644 # LD_LIBRARY_PATH can break AIX bootstrap.
645 powerpc-*-aix* | rs6000-*-aix*)
646 noconfigdirs="$noconfigdirs target-libquadmath"
647 ;;
648esac
649
650# Disable libssp for some systems.
651case "${target}" in
652 avr-*-*)
653 # No hosted I/O support.
654 noconfigdirs="$noconfigdirs target-libssp"
655 ;;
656 powerpc-*-aix* | rs6000-*-aix*)
657 noconfigdirs="$noconfigdirs target-libssp"
658 ;;
659 rl78-*-*)
660 # libssp uses a misaligned load to trigger a fault, but the RL78
661 # doesn't fault for those - instead, it gives a build-time error
662 # for explicit misaligned loads.
663 noconfigdirs="$noconfigdirs target-libssp"
664 ;;
665 visium-*-*)
666 # No hosted I/O support.
667 noconfigdirs="$noconfigdirs target-libssp"
668 ;;
669esac
670
671# Disable libstdc++-v3 for some systems.
672# Allow user to override this if they pass --enable-libstdc++-v3
673if test "${ENABLE_LIBSTDCXX}" = "default" ; then
674 case "${target}" in
675 *-*-vxworks*)
676 # VxWorks uses the Dinkumware C++ library.
677 noconfigdirs="$noconfigdirs target-libstdc++-v3"
678 ;;
679 arm*-wince-pe*)
680 # the C++ libraries don't build on top of CE's C libraries
681 noconfigdirs="$noconfigdirs target-libstdc++-v3"
682 ;;
683 avr-*-*)
684 noconfigdirs="$noconfigdirs target-libstdc++-v3"
685 ;;
686 ft32-*-*)
687 noconfigdirs="$noconfigdirs target-libstdc++-v3"
688 ;;
689 esac
690fi
691
692# Disable Fortran for some systems.
693case "${target}" in
694 mmix-*-*)
695 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
696 unsupported_languages="$unsupported_languages fortran"
697 ;;
698esac
699
700# Disable libffi for some systems.
701case "${target}" in
702 powerpc-*-darwin*)
703 ;;
704 i[[3456789]]86-*-darwin*)
705 ;;
706 x86_64-*-darwin[[912]]*)
707 ;;
708 *-*-darwin*)
709 noconfigdirs="$noconfigdirs target-libffi"
710 ;;
711 *-*-netware*)
712 noconfigdirs="$noconfigdirs target-libffi"
713 ;;
714 *-*-phoenix*)
715 noconfigdirs="$noconfigdirs target-libffi"
716 ;;
717 *-*-rtems*)
718 noconfigdirs="$noconfigdirs target-libffi"
719 ;;
720 *-*-tpf*)
721 noconfigdirs="$noconfigdirs target-libffi"
722 ;;
723 *-*-uclinux*)
724 noconfigdirs="$noconfigdirs target-libffi"
725 ;;
726 *-*-vxworks*)
727 noconfigdirs="$noconfigdirs target-libffi"
728 ;;
729 aarch64*-*-freebsd*)
730 noconfigdirs="$noconfigdirs target-libffi"
731 ;;
732 alpha*-*-*vms*)
733 noconfigdirs="$noconfigdirs target-libffi"
734 ;;
735 arm*-*-freebsd*)
736 noconfigdirs="$noconfigdirs target-libffi"
737 ;;
738 arm-wince-pe)
739 noconfigdirs="$noconfigdirs target-libffi"
740 ;;
741 arm*-*-symbianelf*)
742 noconfigdirs="$noconfigdirs target-libffi"
743 ;;
744 cris-*-* | crisv32-*-*)
745 case "${target}" in
746 *-*-linux*)
747 ;;
748 *) # See PR46792 regarding target-libffi.
749 noconfigdirs="$noconfigdirs target-libffi";;
750 esac
751 ;;
752 hppa*64*-*-hpux*)
753 noconfigdirs="$noconfigdirs target-libffi"
754 ;;
755 hppa*-hp-hpux11*)
756 ;;
757 hppa*-*-hpux*)
758 noconfigdirs="$noconfigdirs target-libffi"
759 ;;
760 ia64*-*-*vms*)
761 noconfigdirs="$noconfigdirs target-libffi"
762 ;;
763 i[[3456789]]86-w64-mingw*)
764 noconfigdirs="$noconfigdirs target-libffi"
765 ;;
766 i[[3456789]]86-*-mingw*)
767 noconfigdirs="$noconfigdirs target-libffi"
768 ;;
769 x86_64-*-mingw*)
770 noconfigdirs="$noconfigdirs target-libffi"
771 ;;
772 mmix-*-*)
773 noconfigdirs="$noconfigdirs target-libffi"
774 ;;
775 powerpc-*-aix*)
776 # copied from rs6000-*-* entry
777 noconfigdirs="$noconfigdirs target-libffi"
778 ;;
779 rs6000-*-aix*)
780 noconfigdirs="$noconfigdirs target-libffi"
781 ;;
782 ft32-*-*)
783 noconfigdirs="$noconfigdirs target-libffi"
784 ;;
785 *-*-lynxos*)
786 noconfigdirs="$noconfigdirs target-libffi"
787 ;;
788esac
789
790# Disable the go frontend on systems where it is known to not work. Please keep
791# this in sync with contrib/config-list.mk.
792case "${target}" in
793*-*-darwin* | *-*-cygwin* | *-*-mingw* | *-*-aix*)
794 unsupported_languages="$unsupported_languages go"
795 ;;
796esac
797
798# Disable libgo for some systems where it is known to not work.
799# For testing, you can easily override this with --enable-libgo.
800if test x$enable_libgo = x; then
801 case "${target}" in
802 *-*-darwin*)
803 # PR 46986
804 noconfigdirs="$noconfigdirs target-libgo"
805 ;;
806 *-*-cygwin* | *-*-mingw*)
807 noconfigdirs="$noconfigdirs target-libgo"
808 ;;
809 *-*-aix*)
810 noconfigdirs="$noconfigdirs target-libgo"
811 ;;
812 esac
813fi
814
815# Default libgloss CPU subdirectory.
816libgloss_dir="$target_cpu"
817
818case "${target}" in
819 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
820 libgloss_dir=wince
821 ;;
822 aarch64*-*-* )
823 libgloss_dir=aarch64
824 ;;
825 arm*-*-*)
826 libgloss_dir=arm
827 ;;
828 cris-*-* | crisv32-*-*)
829 libgloss_dir=cris
830 ;;
831 hppa*-*-*)
832 libgloss_dir=pa
833 ;;
834 i[[3456789]]86-*-*)
835 libgloss_dir=i386
836 ;;
837 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
838 libgloss_dir=m68hc11
839 ;;
840 m68*-*-* | fido-*-*)
841 libgloss_dir=m68k
842 ;;
843 mips*-*-*)
844 libgloss_dir=mips
845 ;;
846 powerpc*-*-*)
847 libgloss_dir=rs6000
848 ;;
849 sparc*-*-*)
850 libgloss_dir=sparc
851 ;;
852esac
853
854# Disable newlib and libgloss for various target OSes.
855case "${target}" in
856 alpha*-dec-osf*)
857 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
858 ;;
859 i[[3456789]]86-*-linux*)
860 # This section makes it possible to build newlib natively on linux.
861 # If we are using a cross compiler then don't configure newlib.
862 if test x${is_cross_compiler} != xno ; then
863 noconfigdirs="$noconfigdirs target-newlib"
864 fi
865 noconfigdirs="$noconfigdirs target-libgloss"
866 # If we are not using a cross compiler, do configure newlib.
867 # Note however, that newlib will only be configured in this situation
868 # if the --with-newlib option has been given, because otherwise
869 # 'target-newlib' will appear in skipdirs.
870 ;;
871 i[[3456789]]86-*-rdos*)
872 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
873 ;;
874 sh*-*-pe|mips*-*-pe|arm-wince-pe)
875 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
876 ;;
877 sparc-*-sunos4*)
878 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
879 ;;
880 *-*-aix*)
881 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
882 ;;
883 *-*-beos*)
884 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
885 ;;
886 *-*-chorusos)
887 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
888 ;;
889 *-*-dragonfly*)
890 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
891 ;;
892 *-*-freebsd*)
893 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
894 ;;
895 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
896 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
897 ;;
898 *-*-lynxos*)
899 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
900 ;;
901 *-*-mingw*)
902 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
903 ;;
904 *-*-netbsd*)
905 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
906 ;;
907 *-*-netware*)
908 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
909 ;;
910 *-*-tpf*)
911 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
912 ;;
913 *-*-uclinux*)
914 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
915 ;;
916 *-*-vxworks*)
917 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
918 ;;
919esac
920
921case "${target}" in
922 *-*-chorusos)
923 ;;
924 aarch64-*-darwin*)
925 noconfigdirs="$noconfigdirs ld gas gdb gprof"
926 noconfigdirs="$noconfigdirs sim target-rda"
927 ;;
928 arm-*-darwin*)
929 noconfigdirs="$noconfigdirs ld gas gdb gprof"
930 noconfigdirs="$noconfigdirs sim target-rda"
931 ;;
932 powerpc-*-darwin*)
933 noconfigdirs="$noconfigdirs ld gas gdb gprof"
934 noconfigdirs="$noconfigdirs sim target-rda"
935 ;;
936 i[[3456789]]86-*-darwin*)
937 noconfigdirs="$noconfigdirs ld gprof"
938 noconfigdirs="$noconfigdirs sim target-rda"
939 ;;
940 x86_64-*-darwin[[912]]*)
941 noconfigdirs="$noconfigdirs ld gas gprof"
942 noconfigdirs="$noconfigdirs sim target-rda"
943 ;;
944 *-*-darwin*)
945 noconfigdirs="$noconfigdirs ld gas gdb gprof"
946 noconfigdirs="$noconfigdirs sim target-rda"
947 ;;
948 *-*-dragonfly*)
949 ;;
950 *-*-freebsd*)
951 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
952 && test -f /usr/local/include/gmp.h; then
953 with_gmp=/usr/local
954 fi
955 ;;
956 *-*-kaos*)
957 # Remove unsupported stuff on all kaOS configurations.
958 noconfigdirs="$noconfigdirs target-libgloss"
959 ;;
960 *-*-netbsd*)
961 ;;
962 *-*-netware*)
963 ;;
964 *-*-phoenix*)
965 noconfigdirs="$noconfigdirs target-libgloss"
966 ;;
967 *-*-rtems*)
968 noconfigdirs="$noconfigdirs target-libgloss"
969 # this is not caught below because this stanza matches earlier
970 case $target in
971 or1k*-*-*) noconfigdirs="$noconfigdirs gdb" ;;
972 esac
973 ;;
974 # The tpf target doesn't support gdb yet.
975 *-*-tpf*)
976 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
977 ;;
978 *-*-uclinux*)
979 noconfigdirs="$noconfigdirs target-rda"
980 ;;
981 *-*-vxworks*)
982 ;;
983 alpha*-dec-osf*)
984 # ld works, but does not support shared libraries.
985 # gas doesn't generate exception information.
986 noconfigdirs="$noconfigdirs gas ld"
987 ;;
988 alpha*-*-*vms*)
989 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
990 ;;
991 alpha*-*-*)
992 # newlib is not 64 bit ready
993 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
994 ;;
995 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
996 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
997 ;;
998 arc*-*-*)
999 noconfigdirs="$noconfigdirs sim"
1000 ;;
1001 arm-*-pe*)
1002 noconfigdirs="$noconfigdirs target-libgloss"
1003 ;;
1004 arm-*-riscix*)
1005 noconfigdirs="$noconfigdirs ld target-libgloss"
1006 ;;
1007 avr-*-*)
1008 if test x${with_avrlibc} != xno; then
1009 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1010 fi
1011 ;;
1012 c4x-*-* | tic4x-*-*)
1013 noconfigdirs="$noconfigdirs target-libgloss"
1014 ;;
1015 tic54x-*-*)
1016 noconfigdirs="$noconfigdirs target-libgloss gdb"
1017 ;;
1018 d10v-*-*)
1019 noconfigdirs="$noconfigdirs target-libgloss"
1020 ;;
1021 d30v-*-*)
1022 noconfigdirs="$noconfigdirs gdb"
1023 ;;
1024 fr30-*-elf*)
1025 noconfigdirs="$noconfigdirs gdb"
1026 ;;
1027 ft32-*-*)
1028 noconfigdirs="$noconfigdirs target-rda gprof"
1029 ;;
1030 moxie-*-*)
1031 noconfigdirs="$noconfigdirs"
1032 ;;
1033 h8300*-*-*)
1034 noconfigdirs="$noconfigdirs target-libgloss"
1035 ;;
1036 h8500-*-*)
1037 noconfigdirs="$noconfigdirs target-libgloss"
1038 ;;
1039 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1040 ;;
1041 hppa*64*-*-hpux*)
1042 noconfigdirs="$noconfigdirs gdb"
1043 ;;
1044 hppa*-*-hpux11*)
1045 noconfigdirs="$noconfigdirs gdb ld"
1046 ;;
1047 hppa*64*-*-linux*)
1048 ;;
1049 hppa*-*-linux*)
1050 ;;
1051 hppa*-*-*elf* | \
1052 hppa*-*-lites* | \
1053 hppa*-*-openbsd* | \
1054 hppa*64*-*-*)
1055 ;;
1056 hppa*-*-pro*)
1057 ;;
1058 hppa*-*-*)
1059 noconfigdirs="$noconfigdirs ld"
1060 ;;
1061 i960-*-*)
1062 noconfigdirs="$noconfigdirs gdb"
1063 ;;
1064 ia64*-*-elf*)
1065 # No gdb support yet.
1066 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1067 ;;
1068 ia64*-**-hpux*)
1069 # No ld support yet.
1070 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1071 ;;
1072 ia64*-*-*vms*)
1073 # No ld support yet.
1074 noconfigdirs="$noconfigdirs libgui itcl ld"
1075 ;;
1076 i[[3456789]]86-w64-mingw*)
1077 ;;
1078 i[[3456789]]86-*-mingw*)
1079 target_configdirs="$target_configdirs target-winsup"
1080 ;;
1081 *-*-cygwin*)
1082 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1083 noconfigdirs="$noconfigdirs target-libgloss"
1084 # always build newlib if winsup directory is present.
1085 if test -d "$srcdir/winsup/cygwin"; then
1086 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1087 elif test -d "$srcdir/newlib"; then
1088 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1089 fi
1090 ;;
1091 i[[3456789]]86-*-pe)
1092 noconfigdirs="$noconfigdirs target-libgloss"
1093 ;;
1094 i[[3456789]]86-*-sco3.2v5*)
1095 # The linker does not yet know about weak symbols in COFF,
1096 # and is not configured to handle mixed ELF and COFF.
1097 noconfigdirs="$noconfigdirs ld target-libgloss"
1098 ;;
1099 i[[3456789]]86-*-sco*)
1100 noconfigdirs="$noconfigdirs gprof target-libgloss"
1101 ;;
1102 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1103 noconfigdirs="$noconfigdirs target-libgloss"
1104 ;;
1105 i[[3456789]]86-*-sysv4*)
1106 noconfigdirs="$noconfigdirs target-libgloss"
1107 ;;
1108 i[[3456789]]86-*-beos*)
1109 noconfigdirs="$noconfigdirs gdb"
1110 ;;
1111 i[[3456789]]86-*-rdos*)
1112 noconfigdirs="$noconfigdirs gdb"
1113 ;;
1114 mmix-*-*)
1115 noconfigdirs="$noconfigdirs gdb"
1116 ;;
1117 mt-*-*)
1118 noconfigdirs="$noconfigdirs sim"
1119 ;;
1120 powerpc-*-aix*)
1121 # copied from rs6000-*-* entry
1122 noconfigdirs="$noconfigdirs gprof"
1123 ;;
1124 powerpc*-*-winnt* | powerpc*-*-pe*)
1125 target_configdirs="$target_configdirs target-winsup"
1126 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1127 # always build newlib.
1128 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1129 ;;
1130 # This is temporary until we can link against shared libraries
1131 powerpcle-*-solaris*)
1132 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1133 ;;
1134 powerpc-*-beos*)
1135 noconfigdirs="$noconfigdirs gdb"
1136 ;;
1137 rs6000-*-lynxos*)
1138 noconfigdirs="$noconfigdirs gprof"
1139 ;;
1140 rs6000-*-aix*)
1141 noconfigdirs="$noconfigdirs gprof"
1142 ;;
1143 rs6000-*-*)
1144 noconfigdirs="$noconfigdirs gprof"
1145 ;;
1146 m68k-apollo-*)
1147 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1148 ;;
1149 microblaze*)
1150 noconfigdirs="$noconfigdirs gprof"
1151 ;;
1152 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1153 if test x$with_newlib = xyes; then
1154 noconfigdirs="$noconfigdirs gprof"
1155 fi
1156 ;;
1157 mips*-*-irix5*)
1158 noconfigdirs="$noconfigdirs gprof target-libgloss"
1159 ;;
1160 mips*-*-irix6*)
1161 noconfigdirs="$noconfigdirs gprof target-libgloss"
1162 ;;
1163 mips*-*-bsd*)
1164 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1165 ;;
1166 mips*-*-linux*)
1167 ;;
1168 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1169 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1170 noconfigdirs="$noconfigdirs ld gas gprof"
1171 ;;
1172 mips*-*-*)
1173 noconfigdirs="$noconfigdirs gprof"
1174 ;;
1175 nvptx*-*-*)
1176 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1177 ;;
1178 or1k*-*-*)
1179 noconfigdirs="$noconfigdirs gdb"
1180 ;;
1181 sh-*-*)
1182 case "${target}" in
1183 sh*-*-elf)
1184 ;;
1185 *)
1186 noconfigdirs="$noconfigdirs target-libgloss" ;;
1187 esac
1188 ;;
1189 sparc-*-sunos4*)
1190 if test x${is_cross_compiler} = xno ; then
1191 use_gnu_ld=no
1192 fi
1193 ;;
1194 tic6x-*-*)
1195 noconfigdirs="$noconfigdirs sim"
1196 ;;
1197 tilepro*-*-* | tilegx*-*-*)
1198 noconfigdirs="$noconfigdirs sim"
1199 ;;
1200 v810-*-*)
1201 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1202 ;;
1203 vax-*-*)
1204 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1205 ;;
1206esac
1207
1208# If we aren't building newlib, then don't build libgloss, since libgloss
1209# depends upon some newlib header files.
1210case "${noconfigdirs}" in
1211 *target-libgloss*) ;;
1212 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1213esac
1214
1215# Work in distributions that contain no compiler tools, like Autoconf.
1216host_makefile_frag=/dev/null
1217if test -d ${srcdir}/config ; then
1218case "${host}" in
1219 i[[3456789]]86-*-msdosdjgpp*)
1220 host_makefile_frag="config/mh-djgpp"
1221 ;;
1222 *-cygwin*)
1223 ACX_CHECK_CYGWIN_CAT_WORKS
1224 host_makefile_frag="config/mh-cygwin"
1225 ;;
1226 *-mingw*)
1227 host_makefile_frag="config/mh-mingw"
1228 ;;
1229 alpha*-linux*)
1230 host_makefile_frag="config/mh-alpha-linux"
1231 ;;
1232 hppa*-hp-hpux10*)
1233 host_makefile_frag="config/mh-pa-hpux10"
1234 ;;
1235 hppa*-hp-hpux*)
1236 host_makefile_frag="config/mh-pa"
1237 ;;
1238 hppa*-*)
1239 host_makefile_frag="config/mh-pa"
1240 ;;
1241 *-*-darwin*)
1242 host_makefile_frag="config/mh-darwin"
1243 ;;
1244 powerpc-*-aix*)
1245 host_makefile_frag="config/mh-ppc-aix"
1246 ;;
1247 rs6000-*-aix*)
1248 host_makefile_frag="config/mh-ppc-aix"
1249 ;;
1250esac
1251fi
1252
1253if test "${build}" != "${host}" ; then
1254 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1255 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1256 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1257 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1258 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1259 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1260 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1261 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1262 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1263 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1264 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1265 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1266else
1267 AR_FOR_BUILD="\$(AR)"
1268 AS_FOR_BUILD="\$(AS)"
1269 CC_FOR_BUILD="\$(CC)"
1270 CXX_FOR_BUILD="\$(CXX)"
1271 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1272 GOC_FOR_BUILD="\$(GOC)"
1273 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1274 LD_FOR_BUILD="\$(LD)"
1275 NM_FOR_BUILD="\$(NM)"
1276 RANLIB_FOR_BUILD="\$(RANLIB)"
1277 WINDRES_FOR_BUILD="\$(WINDRES)"
1278 WINDMC_FOR_BUILD="\$(WINDMC)"
1279fi
1280
1281AC_PROG_CC
1282AC_PROG_CXX
1283
1284# We must set the default linker to the linker used by gcc for the correct
1285# operation of libtool. If LD is not defined and we are using gcc, try to
1286# set the LD default to the ld used by gcc.
1287if test -z "$LD"; then
1288 if test "$GCC" = yes; then
1289 case $build in
1290 *-*-mingw*)
1291 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1292 *)
1293 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1294 esac
1295 case $gcc_prog_ld in
1296 # Accept absolute paths.
1297 [[\\/]* | [A-Za-z]:[\\/]*)]
1298 LD="$gcc_prog_ld" ;;
1299 esac
1300 fi
1301fi
1302
1303# Check whether -static-libstdc++ -static-libgcc is supported.
1304have_static_libs=no
1305if test "$GCC" = yes; then
1306 saved_LDFLAGS="$LDFLAGS"
1307
1308 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1309 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1310 AC_LANG_PUSH(C++)
1311 AC_LINK_IFELSE([
1312#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1313#error -static-libstdc++ not implemented
1314#endif
1315int main() {}],
1316 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1317 [AC_MSG_RESULT([no])])
1318 AC_LANG_POP(C++)
1319
1320 LDFLAGS="$saved_LDFLAGS"
1321fi
1322
1323ACX_PROG_GNAT
1324ACX_PROG_CMP_IGNORE_INITIAL
1325
1326AC_ARG_ENABLE([bootstrap],
1327[AS_HELP_STRING([--enable-bootstrap],
1328 [enable bootstrapping @<:@yes if native build@:>@])],,
1329enable_bootstrap=default)
1330
1331# Issue errors and warnings for invalid/strange bootstrap combinations.
1332if test -r $srcdir/gcc/configure; then
1333 have_compiler=yes
1334else
1335 have_compiler=no
1336fi
1337
1338case "$have_compiler:$host:$target:$enable_bootstrap" in
1339 *:*:*:no) ;;
1340
1341 # Default behavior. Enable bootstrap if we have a compiler
1342 # and we are in a native configuration.
1343 yes:$build:$build:default)
1344 enable_bootstrap=yes ;;
1345
1346 *:*:*:default)
1347 enable_bootstrap=no ;;
1348
1349 # We have a compiler and we are in a native configuration, bootstrap is ok
1350 yes:$build:$build:yes)
1351 ;;
1352
1353 # Other configurations, but we have a compiler. Assume the user knows
1354 # what he's doing.
1355 yes:*:*:yes)
1356 AC_MSG_WARN([trying to bootstrap a cross compiler])
1357 ;;
1358
1359 # No compiler: if they passed --enable-bootstrap explicitly, fail
1360 no:*:*:yes)
1361 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1362
1363 # Fail if wrong command line
1364 *)
1365 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1366 ;;
1367esac
1368
1369# When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1370# C++98 compiler can still start the bootstrap.
1371if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1372 CXX="$CXX -std=gnu++98"
1373fi
1374
1375# Used for setting $lt_cv_objdir
1376_LT_CHECK_OBJDIR
1377
1378# Check for GMP, MPFR and MPC
1379gmplibs="-lmpc -lmpfr -lgmp"
1380gmpinc=
1381have_gmp=no
1382
1383# Specify a location for mpc
1384# check for this first so it ends up on the link line before mpfr.
1385AC_ARG_WITH(mpc,
1386[AS_HELP_STRING([--with-mpc=PATH],
1387 [specify prefix directory for installed MPC package.
1388 Equivalent to --with-mpc-include=PATH/include
1389 plus --with-mpc-lib=PATH/lib])])
1390AC_ARG_WITH(mpc-include,
1391[AS_HELP_STRING([--with-mpc-include=PATH],
1392 [specify directory for installed MPC include files])])
1393AC_ARG_WITH(mpc-lib,
1394[AS_HELP_STRING([--with-mpc-lib=PATH],
1395 [specify directory for the installed MPC library])])
1396
1397if test "x$with_mpc" != x; then
1398 gmplibs="-L$with_mpc/lib $gmplibs"
1399 gmpinc="-I$with_mpc/include $gmpinc"
1400fi
1401if test "x$with_mpc_include" != x; then
1402 gmpinc="-I$with_mpc_include $gmpinc"
1403fi
1404if test "x$with_mpc_lib" != x; then
1405 gmplibs="-L$with_mpc_lib $gmplibs"
1406fi
1407if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1408 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1409 gmpinc='-I$$s/mpc/src '"$gmpinc"
1410 # Do not test the mpc version. Assume that it is sufficient, since
1411 # it is in the source tree, and the library has not been built yet
1412 # but it would be included on the link line in the version check below
1413 # hence making the test fail.
1414 have_gmp=yes
1415fi
1416
1417# Specify a location for mpfr
1418# check for this first so it ends up on the link line before gmp.
1419AC_ARG_WITH(mpfr-dir,
1420[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1421[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1422Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1423
1424AC_ARG_WITH(mpfr,
1425[AS_HELP_STRING([--with-mpfr=PATH],
1426 [specify prefix directory for installed MPFR package.
1427 Equivalent to --with-mpfr-include=PATH/include
1428 plus --with-mpfr-lib=PATH/lib])])
1429AC_ARG_WITH(mpfr-include,
1430[AS_HELP_STRING([--with-mpfr-include=PATH],
1431 [specify directory for installed MPFR include files])])
1432AC_ARG_WITH(mpfr-lib,
1433[AS_HELP_STRING([--with-mpfr-lib=PATH],
1434 [specify directory for the installed MPFR library])])
1435
1436if test "x$with_mpfr" != x; then
1437 gmplibs="-L$with_mpfr/lib $gmplibs"
1438 gmpinc="-I$with_mpfr/include $gmpinc"
1439fi
1440if test "x$with_mpfr_include" != x; then
1441 gmpinc="-I$with_mpfr_include $gmpinc"
1442fi
1443if test "x$with_mpfr_lib" != x; then
1444 gmplibs="-L$with_mpfr_lib $gmplibs"
1445fi
1446if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1447 # MPFR v3.1.0 moved the sources into a src sub-directory.
1448 if ! test -d ${srcdir}/mpfr/src; then
1449 AC_MSG_ERROR([dnl
1450Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1451 fi
1452 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1453 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1454 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1455 # Do not test the mpfr version. Assume that it is sufficient, since
1456 # it is in the source tree, and the library has not been built yet
1457 # but it would be included on the link line in the version check below
1458 # hence making the test fail.
1459 have_gmp=yes
1460fi
1461
1462# Specify a location for gmp
1463AC_ARG_WITH(gmp-dir,
1464[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1465[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1466Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1467
1468AC_ARG_WITH(gmp,
1469[AS_HELP_STRING([--with-gmp=PATH],
1470 [specify prefix directory for the installed GMP package.
1471 Equivalent to --with-gmp-include=PATH/include
1472 plus --with-gmp-lib=PATH/lib])])
1473AC_ARG_WITH(gmp-include,
1474[AS_HELP_STRING([--with-gmp-include=PATH],
1475 [specify directory for installed GMP include files])])
1476AC_ARG_WITH(gmp-lib,
1477[AS_HELP_STRING([--with-gmp-lib=PATH],
1478 [specify directory for the installed GMP library])])
1479
1480
1481if test "x$with_gmp" != x; then
1482 gmplibs="-L$with_gmp/lib $gmplibs"
1483 gmpinc="-I$with_gmp/include $gmpinc"
1484fi
1485if test "x$with_gmp_include" != x; then
1486 gmpinc="-I$with_gmp_include $gmpinc"
1487fi
1488if test "x$with_gmp_lib" != x; then
1489 gmplibs="-L$with_gmp_lib $gmplibs"
1490fi
1491if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1492 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1493 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1494 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1495 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1496 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1497 # Do not test the gmp version. Assume that it is sufficient, since
1498 # it is in the source tree, and the library has not been built yet
1499 # but it would be included on the link line in the version check below
1500 # hence making the test fail.
1501 have_gmp=yes
1502fi
1503
1504if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1505 have_gmp=yes
1506 saved_CFLAGS="$CFLAGS"
1507 CFLAGS="$CFLAGS $gmpinc"
1508 # Check for the recommended and required versions of GMP.
1509 AC_MSG_CHECKING([for the correct version of gmp.h])
1510 AC_TRY_COMPILE([#include "gmp.h"],[
1511 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1512 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1513 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1514 choke me
1515 #endif
1516 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1517 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1518 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1519 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1520 choke me
1521 #endif
1522 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1523 [AC_MSG_RESULT([no]); have_gmp=no])
1524
1525 # If we have GMP, check the MPFR version.
1526 if test x"$have_gmp" = xyes; then
1527 # Check for the recommended and required versions of MPFR.
1528 AC_MSG_CHECKING([for the correct version of mpfr.h])
1529 AC_TRY_COMPILE([#include <gmp.h>
1530 #include <mpfr.h>],[
1531 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1532 choke me
1533 #endif
1534 ], [AC_TRY_COMPILE([#include <gmp.h>
1535 #include <mpfr.h>],[
1536 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1537 choke me
1538 #endif
1539 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1540 [AC_MSG_RESULT([no]); have_gmp=no])
1541 fi
1542
1543 # Check for the MPC header version.
1544 if test x"$have_gmp" = xyes ; then
1545 # Check for the recommended and required versions of MPC.
1546 AC_MSG_CHECKING([for the correct version of mpc.h])
1547 AC_TRY_COMPILE([#include <mpc.h>],[
1548 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1549 choke me
1550 #endif
1551 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1552 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1553 choke me
1554 #endif
1555 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1556 [AC_MSG_RESULT([no]); have_gmp=no])
1557 fi
1558
1559 # Now check the MPFR library.
1560 if test x"$have_gmp" = xyes; then
1561 saved_LIBS="$LIBS"
1562 LIBS="$LIBS $gmplibs"
1563 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1564 AC_TRY_LINK([#include <mpc.h>],[
1565 mpfr_t n;
1566 mpfr_t x;
1567 mpc_t c;
1568 int t;
1569 mpfr_init (n);
1570 mpfr_init (x);
1571 mpfr_atan2 (n, n, x, GMP_RNDN);
1572 mpfr_erfc (n, x, GMP_RNDN);
1573 mpfr_subnormalize (x, t, GMP_RNDN);
1574 mpfr_clear(n);
1575 mpfr_clear(x);
1576 mpc_init2 (c, 53);
1577 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1578 mpc_cosh (c, c, MPC_RNDNN);
1579 mpc_pow (c, c, c, MPC_RNDNN);
1580 mpc_acosh (c, c, MPC_RNDNN);
1581 mpc_clear (c);
1582 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1583 LIBS="$saved_LIBS"
1584 fi
1585
1586 CFLAGS="$saved_CFLAGS"
1587
1588# The library versions listed in the error message below should match
1589# the HARD-minimums enforced above.
1590 if test x$have_gmp != xyes; then
1591 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1592Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1593their locations. Source code for these libraries can be found at
1594their respective hosting sites as well as at
1595ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1596http://gcc.gnu.org/install/prerequisites.html for additional info. If
1597you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1598make sure that you have installed both the libraries and the header
1599files. They may be located in separate packages.])
1600 fi
1601fi
1602
1603# Flags needed for both GMP, MPFR and/or MPC.
1604AC_SUBST(gmplibs)
1605AC_SUBST(gmpinc)
1606AC_SUBST(extra_mpfr_configure_flags)
1607AC_SUBST(extra_mpc_gmp_configure_flags)
1608AC_SUBST(extra_mpc_mpfr_configure_flags)
1609AC_SUBST(extra_isl_gmp_configure_flags)
1610
1611# Libraries to use for stage1 or when not bootstrapping.
1612AC_ARG_WITH(stage1-libs,
1613[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1614[if test "$withval" = "no" -o "$withval" = "yes"; then
1615 stage1_libs=
1616 else
1617 stage1_libs=$withval
1618 fi],
1619[stage1_libs=])
1620AC_SUBST(stage1_libs)
1621
1622# Linker flags to use for stage1 or when not bootstrapping.
1623AC_ARG_WITH(stage1-ldflags,
1624[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1625[if test "$withval" = "no" -o "$withval" = "yes"; then
1626 stage1_ldflags=
1627 else
1628 stage1_ldflags=$withval
1629 fi],
1630[stage1_ldflags=
1631 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1632 # if supported. But if the user explicitly specified the libraries to use,
1633 # trust that they are doing what they want.
1634 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1635 stage1_ldflags="-static-libstdc++ -static-libgcc"
1636 fi])
1637AC_SUBST(stage1_ldflags)
1638
1639# Libraries to use for stage2 and later builds.
1640AC_ARG_WITH(boot-libs,
1641[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1642[if test "$withval" = "no" -o "$withval" = "yes"; then
1643 poststage1_libs=
1644 else
1645 poststage1_libs=$withval
1646 fi],
1647[poststage1_libs=])
1648AC_SUBST(poststage1_libs)
1649
1650# Linker flags to use for stage2 and later builds.
1651AC_ARG_WITH(boot-ldflags,
1652[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1653 [linker flags for stage2 and later])],
1654[if test "$withval" = "no" -o "$withval" = "yes"; then
1655 poststage1_ldflags=
1656 else
1657 poststage1_ldflags=$withval
1658 fi],
1659[poststage1_ldflags=
1660 # In stages 2 and 3, default to linking libstdc++ and libgcc
1661 # statically. But if the user explicitly specified the libraries to
1662 # use, trust that they are doing what they want.
1663 if test "$poststage1_libs" = ""; then
1664 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1665 fi])
1666AC_SUBST(poststage1_ldflags)
1667
1668# GCC GRAPHITE dependency isl.
1669# Basic setup is inlined here, actual checks are in config/isl.m4
1670
1671AC_ARG_WITH(isl,
1672 [AS_HELP_STRING(
1673 [--with-isl=PATH],
1674 [Specify prefix directory for the installed isl package.
1675 Equivalent to --with-isl-include=PATH/include
1676 plus --with-isl-lib=PATH/lib])])
1677
1678# Treat --without-isl as a request to disable
1679# GRAPHITE support and skip all following checks.
1680if test "x$with_isl" != "xno"; then
1681 # Check for isl
1682 dnl Provide configure switches and initialize islinc & isllibs
1683 dnl with user input.
1684 ISL_INIT_FLAGS
1685 dnl The versions of isl that work for Graphite
1686 ISL_CHECK_VERSION()
1687 dnl Only execute fail-action, if isl has been requested.
1688 ISL_IF_FAILED([
1689 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1690fi
1691
1692# If the isl check failed, disable builds of in-tree variant of isl
1693if test "x$with_isl" = xno ||
1694 test "x$gcc_cv_isl" = xno; then
1695 noconfigdirs="$noconfigdirs isl"
1696 islinc=
1697fi
1698
1699AC_SUBST(isllibs)
1700AC_SUBST(islinc)
1701
1702# Check for LTO support.
1703AC_ARG_ENABLE(lto,
1704[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1705enable_lto=$enableval,
1706enable_lto=yes; default_enable_lto=yes)
1707
1708ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1709 build_lto_plugin=yes
1710],[if test x"$default_enable_lto" = x"yes" ; then
1711 case $target in
1712 *-apple-darwin9* | *-cygwin* | *-mingw* | *djgpp*) ;;
1713 # On other non-ELF platforms, LTO has yet to be validated.
1714 *) enable_lto=no ;;
1715 esac
1716 else
1717 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1718 # It would also be nice to check the binutils support, but we don't
1719 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1720 # warn during gcc/ subconfigure; unless you're bootstrapping with
1721 # -flto it won't be needed until after installation anyway.
1722 case $target in
1723 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1724 *) if test x"$enable_lto" = x"yes"; then
1725 AC_MSG_ERROR([LTO support is not enabled for this target.])
1726 fi
1727 ;;
1728 esac
1729 fi
1730 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1731 # Build it unless LTO was explicitly disabled.
1732 case $target in
1733 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1734 *) ;;
1735 esac
1736])
1737
1738AC_ARG_ENABLE(linker-plugin-configure-flags,
1739 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1740 [additional flags for configuring linker plugins @<:@none@:>@])],
1741 extra_linker_plugin_configure_flags=$enableval,
1742 extra_linker_plugin_configure_flags=)
1743AC_SUBST(extra_linker_plugin_configure_flags)
1744AC_ARG_ENABLE(linker-plugin-flags,
1745 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1746 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1747 extra_linker_plugin_flags=$enableval,
1748 extra_linker_plugin_flags=)
1749AC_SUBST(extra_linker_plugin_flags)
1750
1751
1752# By default, C and C++ are the only stage 1 languages.
1753stage1_languages=,c,
1754
1755# Target libraries that we bootstrap.
1756bootstrap_target_libs=,target-libgcc,
1757
1758# Figure out what language subdirectories are present.
1759# Look if the user specified --enable-languages="..."; if not, use
1760# the environment variable $LANGUAGES if defined. $LANGUAGES might
1761# go away some day.
1762# NB: embedded tabs in this IF block -- do not untabify
1763if test -d ${srcdir}/gcc; then
1764 if test x"${enable_languages+set}" != xset; then
1765 if test x"${LANGUAGES+set}" = xset; then
1766 enable_languages="${LANGUAGES}"
1767 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1768 else
1769 enable_languages=all
1770 fi
1771 else
1772 if test x"${enable_languages}" = x ||
1773 test x"${enable_languages}" = xyes;
1774 then
1775 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1776 exit 1
1777 fi
1778 fi
1779 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1780
1781 # 'f95' is the old name for the 'fortran' language. We issue a warning
1782 # and make the substitution.
1783 case ,${enable_languages}, in
1784 *,f95,*)
1785 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1786 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1787 ;;
1788 esac
1789
1790 # If bootstrapping, C++ must be enabled.
1791 case ",$enable_languages,:$enable_bootstrap" in
1792 *,c++,*:*) ;;
1793 *:yes)
1794 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1795 enable_languages="${enable_languages},c++"
1796 else
1797 AC_MSG_ERROR([bootstrapping requires c++ sources])
1798 fi
1799 ;;
1800 esac
1801
1802 # First scan to see if an enabled language requires some other language.
1803 # We assume that a given config-lang.in will list all the language
1804 # front ends it requires, even if some are required indirectly.
1805 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1806 case ${lang_frag} in
1807 ..) ;;
1808 # The odd quoting in the next line works around
1809 # an apparent bug in bash 1.12 on linux.
1810 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1811 *)
1812 # From the config-lang.in, get $language, $lang_requires, and
1813 # $lang_requires_boot_languages.
1814 language=
1815 lang_requires=
1816 lang_requires_boot_languages=
1817 . ${lang_frag}
1818 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1819 case ,${enable_languages}, in
1820 *,$other,*) ;;
1821 *,all,*) ;;
1822 *,$language,*)
1823 echo " \`$other' language required by \`$language'; enabling" 1>&2
1824 enable_languages="${enable_languages},${other}"
1825 ;;
1826 esac
1827 done
1828 for other in ${lang_requires_boot_languages} ; do
1829 if test "$other" != "c"; then
1830 case ,${enable_stage1_languages}, in
1831 *,$other,*) ;;
1832 *,all,*) ;;
1833 *)
1834 case ,${enable_languages}, in
1835 *,$language,*)
1836 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1837 enable_stage1_languages="$enable_stage1_languages,${other}"
1838 ;;
1839 esac
1840 ;;
1841 esac
1842 fi
1843 done
1844 ;;
1845 esac
1846 done
1847
1848 new_enable_languages=,c,
1849
1850 # If LTO is enabled, add the LTO front end.
1851 if test "$enable_lto" = "yes" ; then
1852 case ,${enable_languages}, in
1853 *,lto,*) ;;
1854 *) enable_languages="${enable_languages},lto" ;;
1855 esac
1856 if test "${build_lto_plugin}" = "yes" ; then
1857 configdirs="$configdirs lto-plugin"
1858 fi
1859 fi
1860
1861 # If we're building an offloading compiler, add the LTO front end.
1862 if test x"$enable_as_accelerator_for" != x ; then
1863 case ,${enable_languages}, in
1864 *,lto,*) ;;
1865 *) enable_languages="${enable_languages},lto" ;;
1866 esac
1867 fi
1868
1869 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1870 potential_languages=,c,
1871
1872 enabled_target_libs=
1873 disabled_target_libs=
1874
1875 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1876 case ${lang_frag} in
1877 ..) ;;
1878 # The odd quoting in the next line works around
1879 # an apparent bug in bash 1.12 on linux.
1880 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1881 *)
1882 # From the config-lang.in, get $language, $target_libs,
1883 # $lang_dirs, $boot_language, and $build_by_default
1884 language=
1885 target_libs=
1886 lang_dirs=
1887 subdir_requires=
1888 boot_language=no
1889 build_by_default=yes
1890 . ${lang_frag}
1891 if test x${language} = x; then
1892 echo "${lang_frag} doesn't set \$language." 1>&2
1893 exit 1
1894 fi
1895
1896 if test "$language" = "c++"; then
1897 boot_language=yes
1898 fi
1899
1900 add_this_lang=no
1901 case ,${enable_languages}, in
1902 *,${language},*)
1903 # Language was explicitly selected; include it
1904 # unless it is C, which is enabled by default.
1905 if test "$language" != "c"; then
1906 add_this_lang=yes
1907 fi
1908 ;;
1909 *,all,*)
1910 # 'all' was selected, select it if it is a default language
1911 if test "$language" != "c"; then
1912 add_this_lang=${build_by_default}
1913 fi
1914 ;;
1915 esac
1916
1917 # Disable languages that need other directories if these aren't available.
1918 for i in $subdir_requires; do
1919 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1920 case ,${enable_languages}, in
1921 *,${language},*)
1922 # Specifically requested language; tell them.
1923 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1924 ;;
1925 *)
1926 # Silently disable.
1927 add_this_lang=unsupported
1928 ;;
1929 esac
1930 done
1931
1932 # Disable Ada if no preexisting GNAT is available.
1933 case ,${enable_languages},:${language}:${have_gnat} in
1934 *,${language},*:ada:no)
1935 # Specifically requested language; tell them.
1936 AC_MSG_ERROR([GNAT is required to build $language])
1937 ;;
1938 *:ada:no)
1939 # Silently disable.
1940 add_this_lang=unsupported
1941 ;;
1942 esac
1943
1944 # Disable a language that is unsupported by the target.
1945 case " $unsupported_languages " in
1946 *" $language "*)
1947 add_this_lang=unsupported
1948 ;;
1949 esac
1950
1951 case $add_this_lang in
1952 unsupported)
1953 # Remove language-dependent dirs.
1954 disabled_target_libs="$disabled_target_libs $target_libs"
1955 noconfigdirs="$noconfigdirs $lang_dirs"
1956 ;;
1957 no)
1958 # Remove language-dependent dirs; still show language as supported.
1959 disabled_target_libs="$disabled_target_libs $target_libs"
1960 noconfigdirs="$noconfigdirs $lang_dirs"
1961 potential_languages="${potential_languages}${language},"
1962 ;;
1963 yes)
1964 new_enable_languages="${new_enable_languages}${language},"
1965 potential_languages="${potential_languages}${language},"
1966 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1967 enabled_target_libs="$enabled_target_libs $target_libs"
1968 case "${boot_language}:,$enable_stage1_languages," in
1969 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
1970 # Add to (comma-separated) list of stage 1 languages.
1971 case ",$stage1_languages," in
1972 *,$language,* | ,yes, | ,all,) ;;
1973 *) stage1_languages="${stage1_languages}${language}," ;;
1974 esac
1975 # We need to bootstrap any supporting libraries.
1976 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
1977 ;;
1978 esac
1979 ;;
1980 esac
1981 ;;
1982 esac
1983 done
1984
1985 # Add target libraries which are only needed for disabled languages
1986 # to noconfigdirs.
1987 if test -n "$disabled_target_libs"; then
1988 for dir in $disabled_target_libs; do
1989 case " $enabled_target_libs " in
1990 *" ${dir} "*) ;;
1991 *) noconfigdirs="$noconfigdirs $dir" ;;
1992 esac
1993 done
1994 fi
1995
1996 AC_ARG_ENABLE(stage1-languages,
1997 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
1998 [choose additional languages to build during
1999 stage1. Mostly useful for compiler development])],
2000 [case ,${enable_stage1_languages}, in
2001 ,no,|,,)
2002 # Set it to something that will have no effect in the loop below
2003 enable_stage1_languages=c ;;
2004 ,yes,)
2005 enable_stage1_languages=`echo $new_enable_languages | \
2006 sed -e "s/^,//" -e "s/,$//" ` ;;
2007 *,all,*)
2008 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2009 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2010 esac
2011
2012 # Add "good" languages from enable_stage1_languages to stage1_languages,
2013 # while "bad" languages go in missing_languages. Leave no duplicates.
2014 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2015 case $potential_languages in
2016 *,$i,*)
2017 case $stage1_languages in
2018 *,$i,*) ;;
2019 *) stage1_languages="$stage1_languages$i," ;;
2020 esac ;;
2021 *)
2022 case $missing_languages in
2023 *,$i,*) ;;
2024 *) missing_languages="$missing_languages$i," ;;
2025 esac ;;
2026 esac
2027 done])
2028
2029 # Remove leading/trailing commas that were added for simplicity
2030 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2031 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2032 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2033 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2034
2035 if test "x$missing_languages" != x; then
2036 AC_MSG_ERROR([
2037The following requested languages could not be built: ${missing_languages}
2038Supported languages are: ${potential_languages}])
2039 fi
2040 if test "x$new_enable_languages" != "x$enable_languages"; then
2041 echo The following languages will be built: ${new_enable_languages}
2042 enable_languages="$new_enable_languages"
2043 fi
2044
2045 AC_SUBST(stage1_languages)
2046 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2047fi
2048
2049# Handle --disable-<component> generically.
2050for dir in $configdirs $build_configdirs $target_configdirs ; do
2051 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2052 varname=`echo $dirname | sed -e s/+/_/g`
2053 if eval test x\${enable_${varname}} "=" xno ; then
2054 noconfigdirs="$noconfigdirs $dir"
2055 fi
2056done
2057
2058# Check for Boehm's garbage collector
2059AC_ARG_ENABLE(objc-gc,
2060[AS_HELP_STRING([--enable-objc-gc],
2061 [enable use of Boehm's garbage collector with the
2062 GNU Objective-C runtime])])
2063AC_ARG_WITH([target-bdw-gc],
2064[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2065 [specify prefix directory for installed bdw-gc package.
2066 Equivalent to --with-target-bdw-gc-include=PATH/include
2067 plus --with-target-bdw-gc-lib=PATH/lib])])
2068AC_ARG_WITH([target-bdw-gc-include],
2069[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2070 [specify directories for installed bdw-gc include files])])
2071AC_ARG_WITH([target-bdw-gc-lib],
2072[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2073 [specify directories for installed bdw-gc library])])
2074
2075case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2076 AC_MSG_CHECKING([for bdw garbage collector])
2077 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2078 dnl no bdw-gw options, assume default locations
2079 AC_MSG_RESULT([using bdw-gc in default locations])
2080 else
2081 dnl bdw-gw options, first error checking, complete checking in libobjc
2082 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2083 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2084 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2085 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2086 else
2087 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2088 fi
2089 fi
2090esac
2091
2092# Disable libcilkrts, libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2093case ,${enable_languages}, in
2094 *,c++,*)
2095 # Disable libcilkrts, libitm, libsanitizer if we're not building libstdc++
2096 case "${noconfigdirs}" in
2097 *target-libstdc++-v3*)
2098 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer"
2099 ;;
2100 *) ;;
2101 esac
2102 ;;
2103 *)
2104 noconfigdirs="$noconfigdirs target-libcilkrts target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2105 ;;
2106esac
2107
2108# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2109# $build_configdirs and $target_configdirs.
2110# If we have the source for $noconfigdirs entries, add them to $notsupp.
2111
2112notsupp=""
2113for dir in . $skipdirs $noconfigdirs ; do
2114 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2115 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2116 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2117 if test -r $srcdir/$dirname/configure ; then
2118 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2119 true
2120 else
2121 notsupp="$notsupp $dir"
2122 fi
2123 fi
2124 fi
2125 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2126 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2127 if test -r $srcdir/$dirname/configure ; then
2128 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2129 true
2130 else
2131 notsupp="$notsupp $dir"
2132 fi
2133 fi
2134 fi
2135 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2136 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2137 if test -r $srcdir/$dirname/configure ; then
2138 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2139 true
2140 else
2141 notsupp="$notsupp $dir"
2142 fi
2143 fi
2144 fi
2145done
2146
2147# Quietly strip out all directories which aren't configurable in this tree.
2148# This relies on all configurable subdirectories being autoconfiscated, which
2149# is now the case.
2150build_configdirs_all="$build_configdirs"
2151build_configdirs=
2152for i in ${build_configdirs_all} ; do
2153 j=`echo $i | sed -e s/build-//g`
2154 if test -f ${srcdir}/$j/configure ; then
2155 build_configdirs="${build_configdirs} $i"
2156 fi
2157done
2158
2159configdirs_all="$configdirs"
2160configdirs=
2161for i in ${configdirs_all} ; do
2162 if test -f ${srcdir}/$i/configure ; then
2163 configdirs="${configdirs} $i"
2164 fi
2165done
2166
2167target_configdirs_all="$target_configdirs"
2168target_configdirs=
2169for i in ${target_configdirs_all} ; do
2170 j=`echo $i | sed -e s/target-//g`
2171 if test -f ${srcdir}/$j/configure ; then
2172 target_configdirs="${target_configdirs} $i"
2173 fi
2174done
2175
2176# libiberty-linker-plugin is special: it doesn't have its own source directory,
2177# so we have to add it after the preceding checks.
2178if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2179then
2180 case " $configdirs " in
2181 *" libiberty "*)
2182 # If we can build libiberty, we can also build libiberty-linker-plugin.
2183 configdirs="$configdirs libiberty-linker-plugin"
2184 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2185 --with-libiberty=../libiberty-linker-plugin";;
2186 *)
2187 AC_MSG_ERROR([libiberty missing]);;
2188 esac
2189fi
2190
2191# Sometimes we have special requirements for the host libiberty.
2192extra_host_libiberty_configure_flags=
2193extra_host_zlib_configure_flags=
2194case " $configdirs " in
2195 *" lto-plugin "* | *" libcc1 "*)
2196 # When these are to be built as shared libraries, the same applies to
2197 # libiberty.
2198 extra_host_libiberty_configure_flags=--enable-shared
2199 ;;
2200 *" bfd "*)
2201 # When bfd is to be built as a shared library, the same applies to
2202 # zlib.
2203 if test "$enable_shared" = "yes"; then
2204 extra_host_zlib_configure_flags=--enable-host-shared
2205 fi
2206 ;;
2207esac
2208AC_SUBST(extra_host_libiberty_configure_flags)
2209AC_SUBST(extra_host_zlib_configure_flags)
2210
2211# Produce a warning message for the subdirs we can't configure.
2212# This isn't especially interesting in the Cygnus tree, but in the individual
2213# FSF releases, it's important to let people know when their machine isn't
2214# supported by the one or two programs in a package.
2215
2216if test -n "${notsupp}" && test -z "${norecursion}" ; then
2217 # If $appdirs is non-empty, at least one of those directories must still
2218 # be configured, or we error out. (E.g., if the gas release supports a
2219 # specified target in some subdirs but not the gas subdir, we shouldn't
2220 # pretend that all is well.)
2221 if test -n "$appdirs" ; then
2222 for dir in $appdirs ; do
2223 if test -r $dir/Makefile.in ; then
2224 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2225 appdirs=""
2226 break
2227 fi
2228 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2229 appdirs=""
2230 break
2231 fi
2232 fi
2233 done
2234 if test -n "$appdirs" ; then
2235 echo "*** This configuration is not supported by this package." 1>&2
2236 exit 1
2237 fi
2238 fi
2239 # Okay, some application will build, or we don't care to check. Still
2240 # notify of subdirs not getting built.
2241 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2242 echo " ${notsupp}" 1>&2
2243 echo " (Any other directories should still work fine.)" 1>&2
2244fi
2245
2246case "$host" in
2247 *msdosdjgpp*)
2248 enable_gdbtk=no ;;
2249esac
2250
2251# To find our prefix, in gcc_cv_tool_prefix.
2252ACX_TOOL_DIRS
2253
2254copy_dirs=
2255
2256AC_ARG_WITH([build-sysroot],
2257 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2258 [use sysroot as the system root during the build])],
2259 [if test x"$withval" != x ; then
2260 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2261 fi],
2262 [SYSROOT_CFLAGS_FOR_TARGET=])
2263AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2264
2265AC_ARG_WITH([debug-prefix-map],
2266 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2267 [map A to B, C to D ... in debug information])],
2268 [if test x"$withval" != x; then
2269 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2270 for debug_map in $withval; do
2271 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2272 done
2273 fi],
2274 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2275AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2276
2277# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2278# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2279# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2280# We want to ensure that TARGET libraries (which we know are built with
2281# gcc) are built with "-O2 -g", so include those options when setting
2282# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2283if test "x$CFLAGS_FOR_TARGET" = x; then
2284 if test "x${is_cross_compiler}" = xyes; then
2285 CFLAGS_FOR_TARGET="-g -O2"
2286 else
2287 CFLAGS_FOR_TARGET=$CFLAGS
2288 case " $CFLAGS " in
2289 *" -O2 "*) ;;
2290 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2291 esac
2292 case " $CFLAGS " in
2293 *" -g "* | *" -g3 "*) ;;
2294 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2295 esac
2296 fi
2297fi
2298AC_SUBST(CFLAGS_FOR_TARGET)
2299
2300if test "x$CXXFLAGS_FOR_TARGET" = x; then
2301 if test "x${is_cross_compiler}" = xyes; then
2302 CXXFLAGS_FOR_TARGET="-g -O2"
2303 else
2304 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2305 case " $CXXFLAGS " in
2306 *" -O2 "*) ;;
2307 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2308 esac
2309 case " $CXXFLAGS " in
2310 *" -g "* | *" -g3 "*) ;;
2311 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2312 esac
2313 fi
2314fi
2315AC_SUBST(CXXFLAGS_FOR_TARGET)
2316
2317AC_SUBST(LDFLAGS_FOR_TARGET)
2318
2319# Handle --with-headers=XXX. If the value is not "yes", the contents of
2320# the named directory are copied to $(tooldir)/sys-include.
2321if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2322 if test x${is_cross_compiler} = xno ; then
2323 echo 1>&2 '***' --with-headers is only supported when cross compiling
2324 exit 1
2325 fi
2326 if test x"${with_headers}" != xyes ; then
2327 x=${gcc_cv_tool_prefix}
2328 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2329 fi
2330fi
2331
2332# Handle --with-libs=XXX. If the value is not "yes", the contents of
2333# the name directories are copied to $(tooldir)/lib. Multiple directories
2334# are permitted.
2335if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2336 if test x${is_cross_compiler} = xno ; then
2337 echo 1>&2 '***' --with-libs is only supported when cross compiling
2338 exit 1
2339 fi
2340 if test x"${with_libs}" != xyes ; then
2341 # Copy the libraries in reverse order, so that files in the first named
2342 # library override files in subsequent libraries.
2343 x=${gcc_cv_tool_prefix}
2344 for l in ${with_libs}; do
2345 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2346 done
2347 fi
2348fi
2349
2350# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2351#
2352# This is done by determining whether or not the appropriate directory
2353# is available, and by checking whether or not specific configurations
2354# have requested that this magic not happen.
2355#
2356# The command line options always override the explicit settings in
2357# configure.ac, and the settings in configure.ac override this magic.
2358#
2359# If the default for a toolchain is to use GNU as and ld, and you don't
2360# want to do that, then you should use the --without-gnu-as and
2361# --without-gnu-ld options for the configure script. Similarly, if
2362# the default is to use the included zlib and you don't want to do that,
2363# you should use the --with-system-zlib option for the configure script.
2364
2365if test x${use_gnu_as} = x &&
2366 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2367 with_gnu_as=yes
2368 extra_host_args="$extra_host_args --with-gnu-as"
2369fi
2370
2371if test x${use_gnu_ld} = x &&
2372 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2373 with_gnu_ld=yes
2374 extra_host_args="$extra_host_args --with-gnu-ld"
2375fi
2376
2377if test x${use_included_zlib} = x &&
2378 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2379 :
2380else
2381 with_system_zlib=yes
2382 extra_host_args="$extra_host_args --with-system-zlib"
2383fi
2384
2385# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2386# can detect this case.
2387
2388if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2389 with_newlib=yes
2390 extra_host_args="$extra_host_args --with-newlib"
2391fi
2392
2393# Handle ${copy_dirs}
2394set fnord ${copy_dirs}
2395shift
2396while test $# != 0 ; do
2397 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2398 :
2399 else
2400 echo Copying $1 to $2
2401
2402 # Use the install script to create the directory and all required
2403 # parent directories.
2404 if test -d $2 ; then
2405 :
2406 else
2407 echo >config.temp
2408 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2409 fi
2410
2411 # Copy the directory, assuming we have tar.
2412 # FIXME: Should we use B in the second tar? Not all systems support it.
2413 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2414
2415 # It is the responsibility of the user to correctly adjust all
2416 # symlinks. If somebody can figure out how to handle them correctly
2417 # here, feel free to add the code.
2418
2419 echo $1 > $2/COPIED
2420 fi
2421 shift; shift
2422done
2423
2424# Determine a target-dependent exec_prefix that the installed
2425# gcc will search in. Keep this list sorted by triplet, with
2426# the *-*-osname triplets last.
2427md_exec_prefix=
2428case "${target}" in
2429 i[[34567]]86-pc-msdosdjgpp*)
2430 md_exec_prefix=/dev/env/DJDIR/bin
2431 ;;
2432 *-*-hpux* | \
2433 *-*-nto-qnx* | \
2434 *-*-solaris2*)
2435 md_exec_prefix=/usr/ccs/bin
2436 ;;
2437esac
2438
2439extra_arflags_for_target=
2440extra_nmflags_for_target=
2441extra_ranlibflags_for_target=
2442target_makefile_frag=/dev/null
2443case "${target}" in
2444 spu-*-*)
2445 target_makefile_frag="config/mt-spu"
2446 ;;
2447 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2448 target_makefile_frag="config/mt-sde"
2449 ;;
2450 mipsisa*-*-elfoabi*)
2451 target_makefile_frag="config/mt-mips-elfoabi"
2452 ;;
2453 mips*-*-*linux* | mips*-*-gnu*)
2454 target_makefile_frag="config/mt-mips-gnu"
2455 ;;
2456 nios2-*-elf*)
2457 target_makefile_frag="config/mt-nios2-elf"
2458 ;;
2459 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2460 target_makefile_frag="config/mt-gnu"
2461 ;;
2462 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2463 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2464 # commands to handle both 32-bit and 64-bit objects. These flags are
2465 # harmless if we're using GNU nm or ar.
2466 extra_arflags_for_target=" -X32_64"
2467 extra_nmflags_for_target=" -B -X32_64"
2468 ;;
2469esac
2470
2471alphaieee_frag=/dev/null
2472case $target in
2473 alpha*-*-*)
2474 # This just makes sure to use the -mieee option to build target libs.
2475 # This should probably be set individually by each library.
2476 alphaieee_frag="config/mt-alphaieee"
2477 ;;
2478esac
2479
2480# If --enable-target-optspace always use -Os instead of -O2 to build
2481# the target libraries, similarly if it is not specified, use -Os
2482# on selected platforms.
2483ospace_frag=/dev/null
2484case "${enable_target_optspace}:${target}" in
2485 yes:*)
2486 ospace_frag="config/mt-ospace"
2487 ;;
2488 :d30v-*)
2489 ospace_frag="config/mt-d30v"
2490 ;;
2491 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2492 ospace_frag="config/mt-ospace"
2493 ;;
2494 no:* | :*)
2495 ;;
2496 *)
2497 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2498 ;;
2499esac
2500
2501# Some systems (e.g., one of the i386-aix systems the gas testers are
2502# using) don't handle "\$" correctly, so don't use it here.
2503tooldir='${exec_prefix}'/${target_noncanonical}
2504build_tooldir=${tooldir}
2505
2506# Create a .gdbinit file which runs the one in srcdir
2507# and tells GDB to look there for source files.
2508
2509if test -r ${srcdir}/.gdbinit ; then
2510 case ${srcdir} in
2511 .) ;;
2512 *) cat > ./.gdbinit <<EOF
2513# ${NO_EDIT}
2514dir ${srcdir}
2515dir .
2516source ${srcdir}/.gdbinit
2517EOF
2518 ;;
2519 esac
2520fi
2521
2522# Make sure that the compiler is able to generate an executable. If it
2523# can't, we are probably in trouble. We don't care whether we can run the
2524# executable--we might be using a cross compiler--we only care whether it
2525# can be created. At this point the main configure script has set CC.
2526we_are_ok=no
2527echo "int main () { return 0; }" > conftest.c
2528${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2529if test $? = 0 ; then
2530 if test -s conftest || test -s conftest.exe ; then
2531 we_are_ok=yes
2532 fi
2533fi
2534case $we_are_ok in
2535 no)
2536 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2537 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2538 rm -f conftest*
2539 exit 1
2540 ;;
2541esac
2542rm -f conftest*
2543
2544# Decide which environment variable is used to find dynamic libraries.
2545case "${host}" in
2546 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2547 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2548 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2549 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2550esac
2551
2552# On systems where the dynamic library environment variable is PATH,
2553# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2554# built executables to PATH.
2555if test "$RPATH_ENVVAR" = PATH; then
2556 GCC_SHLIB_SUBDIR=/shlib
2557else
2558 GCC_SHLIB_SUBDIR=
2559fi
2560
2561# Adjust the toplevel makefile according to whether bootstrap was selected.
2562case $enable_bootstrap in
2563 yes)
2564 bootstrap_suffix=bootstrap
2565 BUILD_CONFIG=bootstrap-debug
2566 ;;
2567 no)
2568 bootstrap_suffix=no-bootstrap
2569 BUILD_CONFIG=
2570 ;;
2571esac
2572
2573AC_MSG_CHECKING(for default BUILD_CONFIG)
2574
2575AC_ARG_WITH([build-config],
2576 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2577 [use config/NAME.mk build configuration])],
2578 [case $with_build_config in
2579 yes) with_build_config= ;;
2580 no) with_build_config= BUILD_CONFIG= ;;
2581 esac])
2582
2583if test "x${with_build_config}" != x; then
2584 BUILD_CONFIG=$with_build_config
2585else
2586 case $BUILD_CONFIG in
2587 bootstrap-debug)
2588 if echo "int f (void) { return 0; }" > conftest.c &&
2589 ${CC} -c conftest.c &&
2590 mv conftest.o conftest.o.g0 &&
2591 ${CC} -c -g conftest.c &&
2592 mv conftest.o conftest.o.g &&
2593 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2594 :
2595 else
2596 BUILD_CONFIG=
2597 fi
2598 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2599 ;;
2600 esac
2601fi
2602AC_MSG_RESULT($BUILD_CONFIG)
2603AC_SUBST(BUILD_CONFIG)
2604
2605# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2606AC_MSG_CHECKING([for --enable-vtable-verify])
2607AC_ARG_ENABLE(vtable-verify,
2608[AS_HELP_STRING([--enable-vtable-verify],
2609 [Enable vtable verification feature])],
2610[case "$enableval" in
2611 yes) enable_vtable_verify=yes ;;
2612 no) enable_vtable_verify=no ;;
2613 *) enable_vtable_verify=no;;
2614 esac],
2615[enable_vtable_verify=no])
2616AC_MSG_RESULT($enable_vtable_verify)
2617
2618# Record target_configdirs and the configure arguments for target and
2619# build configuration in Makefile.
2620target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2621build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2622bootstrap_fixincludes=no
2623
2624# If we are building libgomp, bootstrap it.
2625if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2626 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2627fi
2628
2629# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2630# or bootstrap-ubsan, bootstrap it.
2631if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2632 case "$BUILD_CONFIG" in
2633 *bootstrap-asan* | *bootstrap-ubsan* )
2634 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2635 bootstrap_fixincludes=yes
2636 ;;
2637 esac
2638fi
2639
2640# If we are building libvtv and --enable-vtable-verify, bootstrap it.
2641if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2642 test "$enable_vtable_verify" != no; then
2643 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2644fi
2645
2646# If we are building libmpx and $BUILD_CONFIG contains bootstrap-mpx,
2647# bootstrap it.
2648if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then
2649 case "$BUILD_CONFIG" in
2650 *bootstrap-mpx* )
2651 bootstrap_target_libs=${bootstrap_target_libs}target-libmpx,
2652 ;;
2653 esac
2654fi
2655
2656# Determine whether gdb needs tk/tcl or not.
2657# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2658# and in that case we want gdb to be built without tk. Ugh!
2659# In fact I believe gdb is the *only* package directly dependent on tk,
2660# so we should be able to put the 'maybe's in unconditionally and
2661# leave out the maybe dependencies when enable_gdbtk is false. I'm not
2662# 100% sure that that's safe though.
2663
2664gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2665case "$enable_gdbtk" in
2666 no)
2667 GDB_TK="" ;;
2668 yes)
2669 GDB_TK="${gdb_tk}" ;;
2670 *)
2671 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2672 # distro. Eventually someone will fix this and move Insight, nee
2673 # gdbtk to a separate directory.
2674 if test -d ${srcdir}/gdb/gdbtk ; then
2675 GDB_TK="${gdb_tk}"
2676 else
2677 GDB_TK=""
2678 fi
2679 ;;
2680esac
2681CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2682INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2683
2684# Strip out unwanted targets.
2685
2686# While at that, we remove Makefiles if we were started for recursive
2687# configuration, so that the top-level Makefile reconfigures them,
2688# like we used to do when configure itself was recursive.
2689
2690# Loop over modules. We used to use the "$extrasub" feature from Autoconf
2691# but now we're fixing up the Makefile ourselves with the additional
2692# commands passed to AC_CONFIG_FILES. Use separate variables
2693# extrasub-{build,host,target} not because there is any reason to split
2694# the substitutions up that way, but only to remain below the limit of
2695# 99 commands in a script, for HP-UX sed.
2696# Do not nest @if/@endif pairs, because configure will not warn you at all.
2697
2698case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2699 yes:yes:*\ gold\ *:*,c++,*) ;;
2700 yes:yes:*\ gold\ *:*)
2701 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2702 ;;
2703esac
2704
2705extrasub_build=
2706for module in ${build_configdirs} ; do
2707 if test -z "${no_recursion}" \
2708 && test -f ${build_subdir}/${module}/Makefile; then
2709 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2710 rm -f ${build_subdir}/${module}/Makefile
2711 fi
2712 extrasub_build="$extrasub_build
2713/^@if build-$module\$/d
2714/^@endif build-$module\$/d
2715/^@if build-$module-$bootstrap_suffix\$/d
2716/^@endif build-$module-$bootstrap_suffix\$/d"
2717done
2718extrasub_host=
2719for module in ${configdirs} ; do
2720 if test -z "${no_recursion}"; then
2721 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2722 if test -f ${file}; then
2723 echo 1>&2 "*** removing ${file} to force reconfigure"
2724 rm -f ${file}
2725 fi
2726 done
2727 fi
2728 case ${module},${bootstrap_fixincludes} in
2729 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2730 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2731 esac
2732 extrasub_host="$extrasub_host
2733/^@if $module\$/d
2734/^@endif $module\$/d
2735/^@if $module-$host_bootstrap_suffix\$/d
2736/^@endif $module-$host_bootstrap_suffix\$/d"
2737done
2738extrasub_target=
2739for module in ${target_configdirs} ; do
2740 if test -z "${no_recursion}" \
2741 && test -f ${target_subdir}/${module}/Makefile; then
2742 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2743 rm -f ${target_subdir}/${module}/Makefile
2744 fi
2745
2746 # We only bootstrap target libraries listed in bootstrap_target_libs.
2747 case $bootstrap_target_libs in
2748 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2749 *) target_bootstrap_suffix=no-bootstrap ;;
2750 esac
2751
2752 extrasub_target="$extrasub_target
2753/^@if target-$module\$/d
2754/^@endif target-$module\$/d
2755/^@if target-$module-$target_bootstrap_suffix\$/d
2756/^@endif target-$module-$target_bootstrap_suffix\$/d"
2757done
2758
2759# Do the final fixup along with target modules.
2760extrasub_target="$extrasub_target
2761/^@if /,/^@endif /d"
2762
2763# Create the serialization dependencies. This uses a temporary file.
2764
2765AC_ARG_ENABLE([serial-configure],
2766[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2767 [force sequential configuration of
2768 sub-packages for the host, target or build
2769 machine, or all sub-packages])])
2770
2771case ${enable_serial_configure} in
2772 yes)
2773 enable_serial_build_configure=yes
2774 enable_serial_host_configure=yes
2775 enable_serial_target_configure=yes
2776 ;;
2777esac
2778
2779# These force 'configure's to be done one at a time, to avoid problems
2780# with contention over a shared config.cache.
2781rm -f serdep.tmp
2782echo '# serdep.tmp' > serdep.tmp
2783olditem=
2784test "x${enable_serial_build_configure}" = xyes &&
2785for item in ${build_configdirs} ; do
2786 case ${olditem} in
2787 "") ;;
2788 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2789 esac
2790 olditem=${item}
2791done
2792olditem=
2793test "x${enable_serial_host_configure}" = xyes &&
2794for item in ${configdirs} ; do
2795 case ${olditem} in
2796 "") ;;
2797 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2798 esac
2799 olditem=${item}
2800done
2801olditem=
2802test "x${enable_serial_target_configure}" = xyes &&
2803for item in ${target_configdirs} ; do
2804 case ${olditem} in
2805 "") ;;
2806 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2807 esac
2808 olditem=${item}
2809done
2810serialization_dependencies=serdep.tmp
2811AC_SUBST_FILE(serialization_dependencies)
2812
2813# Base args. Strip norecursion, cache-file, srcdir, host, build,
2814# target, nonopt, and variable assignments. These are the ones we
2815# might not want to pass down to subconfigures. The exception being
2816# --cache-file=/dev/null, which is used to turn off the use of cache
2817# files altogether, and which should be passed on to subconfigures.
2818# Also strip program-prefix, program-suffix, and program-transform-name,
2819# so that we can pass down a consistent program-transform-name.
2820baseargs=
2821tbaseargs=
2822keep_next=no
2823skip_next=no
2824eval "set -- $ac_configure_args"
2825for ac_arg
2826do
2827 if test X"$skip_next" = X"yes"; then
2828 skip_next=no
2829 continue
2830 fi
2831 if test X"$keep_next" = X"yes"; then
2832 case $ac_arg in
2833 *\'*)
2834 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2835 esac
2836 baseargs="$baseargs '$ac_arg'"
2837 tbaseargs="$tbaseargs '$ac_arg'"
2838 keep_next=no
2839 continue
2840 fi
2841
2842 # Handle separated arguments. Based on the logic generated by
2843 # autoconf 2.59.
2844 case $ac_arg in
2845 *=* | --config-cache | -C | -disable-* | --disable-* \
2846 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2847 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2848 | -with-* | --with-* | -without-* | --without-* | --x)
2849 separate_arg=no
2850 ;;
2851 -*)
2852 separate_arg=yes
2853 ;;
2854 *)
2855 separate_arg=no
2856 ;;
2857 esac
2858
2859 skip_targ=no
2860 case $ac_arg in
2861changequote(,)
2862 --with-* | --without-*)
2863 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2864
2865 case $libopt in
2866 *[-_]include)
2867 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2868 ;;
2869 *[-_]lib)
2870 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2871 ;;
2872 *)
2873 lib=$libopt
2874 ;;
2875 esac
2876changequote([,])
2877
2878 case $lib in
2879 mpc | mpfr | gmp | isl)
2880 # If we're processing --with-$lib, --with-$lib-include or
2881 # --with-$lib-lib, for one of the libs above, and target is
2882 # different from host, don't pass the current argument to any
2883 # target library's configure.
2884 if test x$is_cross_compiler = xyes; then
2885 skip_targ=yes
2886 fi
2887 ;;
2888 esac
2889 ;;
2890 esac
2891
2892 case "$ac_arg" in
2893 --cache-file=/dev/null | \
2894 -cache-file=/dev/null )
2895 # Handled here to avoid the test to skip args below.
2896 baseargs="$baseargs '$ac_arg'"
2897 tbaseargs="$tbaseargs '$ac_arg'"
2898 # Assert: $separate_arg should always be no.
2899 keep_next=$separate_arg
2900 ;;
2901 --no*)
2902 continue
2903 ;;
2904 --c* | \
2905 --sr* | \
2906 --ho* | \
2907 --bu* | \
2908 --t* | \
2909 --program-* | \
2910 -cache_file* | \
2911 -srcdir* | \
2912 -host* | \
2913 -build* | \
2914 -target* | \
2915 -program-prefix* | \
2916 -program-suffix* | \
2917 -program-transform-name* )
2918 skip_next=$separate_arg
2919 continue
2920 ;;
2921 -*)
2922 # An option. Add it.
2923 case $ac_arg in
2924 *\'*)
2925 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2926 esac
2927 baseargs="$baseargs '$ac_arg'"
2928 if test X"$skip_targ" = Xno; then
2929 tbaseargs="$tbaseargs '$ac_arg'"
2930 fi
2931 keep_next=$separate_arg
2932 ;;
2933 *)
2934 # Either a variable assignment, or a nonopt (triplet). Don't
2935 # pass it down; let the Makefile handle this.
2936 continue
2937 ;;
2938 esac
2939done
2940# Remove the initial space we just introduced and, as these will be
2941# expanded by make, quote '$'.
2942baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2943
2944# Add in --program-transform-name, after --program-prefix and
2945# --program-suffix have been applied to it. Autoconf has already
2946# doubled dollar signs and backslashes in program_transform_name; we want
2947# the backslashes un-doubled, and then the entire thing wrapped in single
2948# quotes, because this will be expanded first by make and then by the shell.
2949# Also, because we want to override the logic in subdir configure scripts to
2950# choose program_transform_name, replace any s,x,x, with s,y,y,.
2951sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2952${program_transform_name}
2953EOF_SED
2954gcc_transform_name=`cat conftestsed.out`
2955rm -f conftestsed.out
2956baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2957tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
2958if test "$silent" = yes; then
2959 baseargs="$baseargs --silent"
2960 tbaseargs="$tbaseargs --silent"
2961fi
2962baseargs="$baseargs --disable-option-checking"
2963tbaseargs="$tbaseargs --disable-option-checking"
2964
2965# Record and document user additions to sub configure arguments.
2966AC_ARG_VAR([build_configargs],
2967 [additional configure arguments for build directories])
2968AC_ARG_VAR([host_configargs],
2969 [additional configure arguments for host directories])
2970AC_ARG_VAR([target_configargs],
2971 [additional configure arguments for target directories])
2972
2973# For the build-side libraries, we just need to pretend we're native,
2974# and not use the same cache file. Multilibs are neither needed nor
2975# desired. We can't even use the same cache file for all build-side
2976# libraries, as they're compiled differently; some with C, some with
2977# C++ or with different feature-enabling options.
2978build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
2979
2980# For host modules, accept cache file option, or specification as blank.
2981case "${cache_file}" in
2982"") # empty
2983 cache_file_option="" ;;
2984/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2985 cache_file_option="--cache-file=${cache_file}" ;;
2986*) # relative path
2987 cache_file_option="--cache-file=../${cache_file}" ;;
2988esac
2989
2990# Host dirs don't like to share a cache file either, horribly enough.
2991# This seems to be due to autoconf 2.5x stupidity.
2992host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
2993
2994target_configargs="$target_configargs ${tbaseargs}"
2995
2996# Passing a --with-cross-host argument lets the target libraries know
2997# whether they are being built with a cross-compiler or being built
2998# native. However, it would be better to use other mechanisms to make the
2999# sorts of decisions they want to make on this basis. Please consider
3000# this option to be deprecated. FIXME.
3001if test x${is_cross_compiler} = xyes ; then
3002 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3003fi
3004
3005# Special user-friendly check for native x86_64-linux build, if
3006# multilib is not explicitly enabled.
3007case "$target:$have_compiler:$host:$target:$enable_multilib" in
3008 x86_64-*linux*:yes:$build:$build:)
3009 # Make sure we have a development environment that handles 32-bit
3010 dev64=no
3011 echo "int main () { return 0; }" > conftest.c
3012 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3013 if test $? = 0 ; then
3014 if test -s conftest || test -s conftest.exe ; then
3015 dev64=yes
3016 fi
3017 fi
3018 rm -f conftest*
3019 if test x${dev64} != xyes ; then
3020 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.])
3021 fi
3022 ;;
3023esac
3024
3025# Default to --enable-multilib.
3026if test x${enable_multilib} = x ; then
3027 target_configargs="--enable-multilib ${target_configargs}"
3028fi
3029
3030# Pass --with-newlib if appropriate. Note that target_configdirs has
3031# changed from the earlier setting of with_newlib.
3032if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3033 target_configargs="--with-newlib ${target_configargs}"
3034fi
3035
3036# Different target subdirs use different values of certain variables
3037# (notably CXX). Worse, multilibs use *lots* of different values.
3038# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3039# it doesn't automatically accept command-line overrides of them.
3040# This means it's not safe for target subdirs to share a cache file,
3041# which is disgusting, but there you have it. Hopefully this can be
3042# fixed in future. It's still worthwhile to use a cache file for each
3043# directory. I think.
3044
3045# Pass the appropriate --build, --host, --target and --cache-file arguments.
3046# We need to pass --target, as newer autoconf's requires consistency
3047# for target_alias and gcc doesn't manage it consistently.
3048target_configargs="--cache-file=./config.cache ${target_configargs}"
3049
3050FLAGS_FOR_TARGET=
3051case " $target_configdirs " in
3052 *" newlib "*)
3053 case " $target_configargs " in
3054 *" --with-newlib "*)
3055 case "$target" in
3056 *-cygwin*)
3057 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3058 ;;
3059 esac
3060
3061 # If we're not building GCC, don't discard standard headers.
3062 if test -d ${srcdir}/gcc; then
3063 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3064
3065 if test "${build}" != "${host}"; then
3066 # On Canadian crosses, CC_FOR_TARGET will have already been set
3067 # by `configure', so we won't have an opportunity to add -Bgcc/
3068 # to it. This is right: we don't want to search that directory
3069 # for binaries, but we want the header files in there, so add
3070 # them explicitly.
3071 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3072
3073 # Someone might think of using the pre-installed headers on
3074 # Canadian crosses, in case the installed compiler is not fully
3075 # compatible with the compiler being built. In this case, it
3076 # would be better to flag an error than risking having
3077 # incompatible object files being constructed. We can't
3078 # guarantee that an error will be flagged, but let's hope the
3079 # compiler will do it, when presented with incompatible header
3080 # files.
3081 fi
3082 fi
3083
3084 case "${target}-${is_cross_compiler}" in
3085 i[[3456789]]86-*-linux*-no)
3086 # Here host == target, so we don't need to build gcc,
3087 # so we don't want to discard standard headers.
3088 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3089 ;;
3090 *)
3091 # If we're building newlib, use its generic headers last, but search
3092 # for any libc-related directories first (so make it the last -B
3093 # switch).
3094 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3095
3096 # If we're building libgloss, find the startup file, simulator library
3097 # and linker script.
3098 case " $target_configdirs " in
3099 *" libgloss "*)
3100 # Look for startup file, simulator library and maybe linker script.
3101 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3102 # Look for libnosys.a in case the target needs it.
3103 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3104 # Most targets have the linker script in the source directory.
3105 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3106 ;;
3107 esac
3108 ;;
3109 esac
3110 ;;
3111 esac
3112 ;;
3113esac
3114
3115case "$target" in
3116 x86_64-*mingw* | *-w64-mingw*)
3117 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3118 # however, use a symlink named 'mingw' in ${prefix} .
3119 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3120 ;;
3121 *-mingw*)
3122 # MinGW can't be handled as Cygwin above since it does not use newlib.
3123 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3124 ;;
3125esac
3126
3127# Allow the user to override the flags for
3128# our build compiler if desired.
3129if test x"${build}" = x"${host}" ; then
3130 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3131 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3132 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3133fi
3134
3135# On Canadian crosses, we'll be searching the right directories for
3136# the previously-installed cross compiler, so don't bother to add
3137# flags for directories within the install tree of the compiler
3138# being built; programs in there won't even run.
3139if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3140 # Search for pre-installed headers if nothing else fits.
3141 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3142fi
3143
3144if test "x${use_gnu_ld}" = x &&
3145 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3146 # Arrange for us to find uninstalled linker scripts.
3147 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3148fi
3149
3150# Search for other target-specific linker scripts and such.
3151case "${target}" in
3152 mep*)
3153 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3154 ;;
3155esac
3156
3157# Makefile fragments.
3158for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3159do
3160 eval fragval=\$$frag
3161 if test $fragval != /dev/null; then
3162 eval $frag=${srcdir}/$fragval
3163 fi
3164done
3165AC_SUBST_FILE(host_makefile_frag)
3166AC_SUBST_FILE(target_makefile_frag)
3167AC_SUBST_FILE(alphaieee_frag)
3168AC_SUBST_FILE(ospace_frag)
3169
3170# Miscellanea: directories, flags, etc.
3171AC_SUBST(RPATH_ENVVAR)
3172AC_SUBST(GCC_SHLIB_SUBDIR)
3173AC_SUBST(tooldir)
3174AC_SUBST(build_tooldir)
3175AC_SUBST(CONFIGURE_GDB_TK)
3176AC_SUBST(GDB_TK)
3177AC_SUBST(INSTALL_GDB_TK)
3178
3179# Build module lists & subconfigure args.
3180AC_SUBST(build_configargs)
3181AC_SUBST(build_configdirs)
3182
3183# Host module lists & subconfigure args.
3184AC_SUBST(host_configargs)
3185AC_SUBST(configdirs)
3186AC_SUBST(target_configdirs)
3187
3188# Target module lists & subconfigure args.
3189AC_SUBST(target_configargs)
3190
3191
3192# Build tools.
3193AC_SUBST(AR_FOR_BUILD)
3194AC_SUBST(AS_FOR_BUILD)
3195AC_SUBST(CC_FOR_BUILD)
3196AC_SUBST(CFLAGS_FOR_BUILD)
3197AC_SUBST(CXXFLAGS_FOR_BUILD)
3198AC_SUBST(CXX_FOR_BUILD)
3199AC_SUBST(DLLTOOL_FOR_BUILD)
3200AC_SUBST(GFORTRAN_FOR_BUILD)
3201AC_SUBST(GOC_FOR_BUILD)
3202AC_SUBST(LDFLAGS_FOR_BUILD)
3203AC_SUBST(LD_FOR_BUILD)
3204AC_SUBST(NM_FOR_BUILD)
3205AC_SUBST(RANLIB_FOR_BUILD)
3206AC_SUBST(WINDMC_FOR_BUILD)
3207AC_SUBST(WINDRES_FOR_BUILD)
3208
3209# Generate default definitions for YACC, M4, LEX and other programs that run
3210# on the build machine. These are used if the Makefile can't locate these
3211# programs in objdir.
3212MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3213
3214AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3215case " $build_configdirs " in
3216 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3217esac
3218
3219AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3220case " $build_configdirs " in
3221 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3222esac
3223
3224AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3225case " $build_configdirs " in
3226 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3227esac
3228
3229AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3230case " $build_configdirs " in
3231 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3232 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3233esac
3234
3235AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3236case " $build_configdirs " in
3237 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3238esac
3239
3240AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3241case " $build_configdirs " in
3242 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3243 *)
3244changequote(,)
3245 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3246 # higher, else we use the "missing" dummy.
3247 if ${MAKEINFO} --version \
3248 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3249 :
3250 else
3251 MAKEINFO="$MISSING makeinfo"
3252 fi
3253 ;;
3254changequote([,])
3255esac
3256
3257# FIXME: expect and dejagnu may become build tools?
3258
3259AC_CHECK_PROGS(EXPECT, expect, expect)
3260case " $configdirs " in
3261 *" expect "*)
3262 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3263 ;;
3264esac
3265
3266AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3267case " $configdirs " in
3268 *" dejagnu "*)
3269 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3270 ;;
3271esac
3272
3273
3274# Host tools.
3275NCN_STRICT_CHECK_TOOLS(AR, ar)
3276NCN_STRICT_CHECK_TOOLS(AS, as)
3277NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3278NCN_STRICT_CHECK_TOOLS(LD, ld)
3279NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3280NCN_STRICT_CHECK_TOOLS(NM, nm)
3281NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3282NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3283NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3284NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3285NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3286NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3287NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3288AC_SUBST(CC)
3289AC_SUBST(CXX)
3290AC_SUBST(CFLAGS)
3291AC_SUBST(CXXFLAGS)
3292
3293# Target tools.
3294AC_ARG_WITH([build-time-tools],
3295 [AS_HELP_STRING([--with-build-time-tools=PATH],
3296 [use given path to find target tools during the build])],
3297 [case x"$withval" in
3298 x/*) ;;
3299 *)
3300 with_build_time_tools=
3301 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3302 ;;
3303 esac],
3304 [with_build_time_tools=])
3305
3306NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3307NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3308NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3309NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3310NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3311
3312ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3313ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3314ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3315ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3316ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3317ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3318ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3319ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3320ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3321ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3322ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3323ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3324ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3325
3326RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3327
3328GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3329GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3330GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3331dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3332GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3333 [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],
3334 c++)
3335GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3336 [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],
3337 c++)
3338GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3339GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3340GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3341 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3342GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3343 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3344GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3345GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3346GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3347GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3348GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3349GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3350GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3351GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3352GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3353GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3354
3355AC_SUBST(FLAGS_FOR_TARGET)
3356AC_SUBST(RAW_CXX_FOR_TARGET)
3357
3358# Certain tools may need extra flags.
3359AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3360RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3361NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3362
3363# When building target libraries, except in a Canadian cross, we use
3364# the same toolchain as the compiler we just built.
3365COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3366COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3367COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3368if test $host = $build; then
3369 case " $configdirs " in
3370 *" gcc "*)
3371 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3372 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3373 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3374 ;;
3375 esac
3376fi
3377
3378AC_SUBST(COMPILER_AS_FOR_TARGET)
3379AC_SUBST(COMPILER_LD_FOR_TARGET)
3380AC_SUBST(COMPILER_NM_FOR_TARGET)
3381
3382AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3383AC_ARG_ENABLE(maintainer-mode,
3384[AS_HELP_STRING([--enable-maintainer-mode],
3385 [enable make rules and dependencies not useful
3386 (and sometimes confusing) to the casual installer])],
3387 USE_MAINTAINER_MODE=$enableval,
3388 USE_MAINTAINER_MODE=no)
3389AC_MSG_RESULT($USE_MAINTAINER_MODE)
3390AC_SUBST(MAINTAINER_MODE_TRUE)
3391AC_SUBST(MAINTAINER_MODE_FALSE)
3392if test "$USE_MAINTAINER_MODE" = yes; then
3393 MAINTAINER_MODE_TRUE=
3394 MAINTAINER_MODE_FALSE='#'
3395else
3396 MAINTAINER_MODE_TRUE='#'
3397 MAINTAINER_MODE_FALSE=
3398fi
3399MAINT=$MAINTAINER_MODE_TRUE
3400AC_SUBST(MAINT)dnl
3401
3402# ---------------------
3403# GCC bootstrap support
3404# ---------------------
3405
3406# Stage specific cflags for build.
3407stage1_cflags="-g"
3408case $build in
3409 vax-*-*)
3410 case ${GCC} in
3411 yes) stage1_cflags="-g -Wa,-J" ;;
3412 *) stage1_cflags="-g -J" ;;
3413 esac ;;
3414esac
3415
3416AC_SUBST(stage1_cflags)
3417
3418# Enable --enable-checking in stage1 of the compiler.
3419AC_ARG_ENABLE(stage1-checking,
3420[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3421 [choose additional checking for stage1 of the compiler])],
3422[stage1_checking=--enable-checking=${enable_stage1_checking}],
3423[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3424 # For --disable-checking or implicit --enable-checking=release, avoid
3425 # setting --enable-checking=gc in the default stage1 checking for LTO
3426 # bootstraps. See PR62077.
3427 case $BUILD_CONFIG in
3428 *lto*)
3429 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3430 *)
3431 stage1_checking=--enable-checking=yes,types;;
3432 esac
3433 if test "x$enable_checking" = x && \
3434 test -d ${srcdir}/gcc && \
3435 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3436 stage1_checking=--enable-checking=yes,types,extra
3437 fi
3438else
3439 stage1_checking=--enable-checking=$enable_checking,types
3440fi])
3441AC_SUBST(stage1_checking)
3442
3443# Enable -Werror in bootstrap stage2 and later.
3444AC_ARG_ENABLE(werror,
3445[AS_HELP_STRING([--enable-werror],
3446 [enable -Werror in bootstrap stage2 and later])], [],
3447[if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3448 enable_werror=yes
3449else
3450 enable_werror=no
3451fi])
3452case ${enable_werror} in
3453 yes) stage2_werror_flag="--enable-werror-always" ;;
3454 *) stage2_werror_flag="" ;;
3455esac
3456AC_SUBST(stage2_werror_flag)
3457
3458# Enable --enable-host-shared.
3459AC_ARG_ENABLE(host-shared,
3460[AS_HELP_STRING([--enable-host-shared],
3461 [build host code as shared libraries])],
3462[host_shared=$enableval], [host_shared=no])
3463AC_SUBST(host_shared)
3464
3465# PR jit/64780: Require the user to explicitly specify
3466# --enable-host-shared if the jit is enabled, hinting
3467# that they might want to do a separate configure/build of
3468# the jit, to avoid users from slowing down the rest of the
3469# compiler by enabling the jit.
3470if test ${host_shared} = "no" ; then
3471 case "${enable_languages}" in
3472 *jit*)
3473 AC_MSG_ERROR([
3474Enabling language "jit" requires --enable-host-shared.
3475
3476--enable-host-shared typically slows the rest of the compiler down by
3477a few %, so you must explicitly enable it.
3478
3479If you want to build both the jit and the regular compiler, it is often
3480best to do this via two separate configure/builds, in separate
3481directories, to avoid imposing the performance cost of
3482--enable-host-shared on the regular compiler.])
3483 ;;
3484 *)
3485 ;;
3486 esac
3487fi
3488
3489# Specify what files to not compare during bootstrap.
3490
3491compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3492case "$target" in
3493 hppa*64*-*-hpux*) ;;
3494 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
3495 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3496esac
3497AC_SUBST(compare_exclusions)
3498
3499AC_CONFIG_FILES([Makefile],
3500 [sed "$extrasub_build" Makefile |
3501 sed "$extrasub_host" |
3502 sed "$extrasub_target" > mf$$
3503 mv -f mf$$ Makefile],
3504 [extrasub_build="$extrasub_build"
3505 extrasub_host="$extrasub_host"
3506 extrasub_target="$extrasub_target"])
3507AC_OUTPUT
GDB Binutils - Deliverables
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