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MIPS: Relax instruction order check in msa-builtins.c.
[thirdparty/gcc.git] / configure.ac
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77ae4d79 1# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
9b31ae9c 2# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
7aa50266 3# 2014, 2015, 2016 Free Software Foundation, Inc.
28e9041c 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
4b072aaf 7# the Free Software Foundation; either version 3 of the License, or
28e9041c 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
4b072aaf 16# along with this program; see the file COPYING3. If not see
17# <http://www.gnu.org/licenses/>.
28e9041c 18
19##############################################################################
71ab34df 20### WARNING: this file contains embedded tabs. Do not run untabify on this file.
21
f0cb9b36 22m4_include(config/acx.m4)
23m4_include(config/override.m4)
82eaf560 24m4_include(config/proginstall.m4)
1a4f45ec 25m4_include(config/elf.m4)
c3fc6a63 26m4_include([libtool.m4])
27m4_include([ltoptions.m4])
28m4_include([ltsugar.m4])
29m4_include([ltversion.m4])
30m4_include([lt~obsolete.m4])
87e20041 31m4_include([config/isl.m4])
599a3eac 32
71ab34df 33AC_INIT(move-if-change)
81a71e2b 34AC_PREREQ(2.64)
cd2f3773 35AC_DISABLE_OPTION_CHECKING
b30fcfae 36
4e8a889d 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
b30fcfae 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
71ab34df 79AC_CANONICAL_SYSTEM
80AC_ARG_PROGRAM
81
b30fcfae 82m4_pattern_allow([^AS_FOR_TARGET$])dnl
93c5e793 83m4_pattern_allow([^AS_FOR_BUILD$])dnl
b30fcfae 84
450e6c84 85# Get 'install' or 'install-sh' and its variants.
86AC_PROG_INSTALL
599a3eac 87ACX_PROG_LN
5965d276 88AC_PROG_LN_S
b181f265 89AC_PROG_SED
90AC_PROG_AWK
450e6c84 91
3a8631fa 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
71ab34df 100# Set srcdir to "." if that's what it is.
101# This is important for multilib support.
102pwd=`${PWDCMD-pwd}`
71ab34df 103if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105fi
106
107topsrcdir=$srcpwd
28e9041c 108
805e22b2 109extra_host_args=
14ac9144 110
28e9041c 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
805e22b2 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.
28e9041c 121
805e22b2 122# Double entries in build_configdirs, configdirs, or target_configdirs may
123# cause circular dependencies and break everything horribly.
28e9041c 124
2f8725b0 125# these library is used by various programs built for the build
126# environment
127#
9245d2c5 128build_libs="build-libiberty build-libcpp"
2f8725b0 129
130# these tools are built for the build environment
4fc99708 131build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
2f8725b0 132
28e9041c 133# these libraries are used by various programs built for the host environment
429cca51 134#f
572cf1f7 135host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv"
28e9041c 136
28e9041c 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.
805e22b2 140# binutils, gas and ld appear in that order because it makes sense to run
141# "make check" in that particular order.
af7c5662 142# If --enable-gold is used, "gold" may replace "ld".
dcfe52b6 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"
ed37269d 144
28e9041c 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)
5ab7e123 147# Note that libiberty is not a target library.
27bfe7b7 148target_libraries="target-libgcc \
ecd3459e 149 target-libbacktrace \
ed37269d 150 target-libgloss \
151 target-newlib \
a0191bfe 152 target-libgomp \
4710dd51 153 target-libcilkrts \
d3a7dd32 154 target-liboffloadmic \
6db1d2ca 155 target-libatomic \
4c0315d0 156 target-libitm \
54d7d5f2 157 target-libstdc++-v3 \
549e2197 158 target-libsanitizer \
b710ec85 159 target-libvtv \
202baac8 160 target-libmpx \
0d55f4d0 161 target-libssp \
87969c8c 162 target-libquadmath \
4ee9c684 163 target-libgfortran \
38cf534f 164 target-libffi \
93341878 165 target-libobjc \
5ff5b630 166 target-libada \
167 target-libgo"
28e9041c 168
328637e8 169# these tools are built using the target libraries, and are intended to
170# run only in the target environment
28e9041c 171#
328637e8 172# note: any program that *uses* libraries that are in the "target_libraries"
6c9785b4 173# list belongs in this list.
28e9041c 174#
4fc99708 175target_tools="target-rda"
28e9041c 176
177################################################################################
178
28e9041c 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.
28e9041c 184configdirs=`echo ${host_libs} ${host_tools}`
328637e8 185target_configdirs=`echo ${target_libraries} ${target_tools}`
2b59cb05 186build_configdirs=`echo ${build_libs} ${build_tools}`
6f4f34a7 187
d2d2630b 188m4_divert_text([PARSE_ARGS],
13d2f2b2 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'`
d2d2630b 197])
198
28e9041c 199################################################################################
200
28e9041c 201srcname="gnu development package"
202
203# This gets set non-empty for some net releases of packages.
204appdirs=""
205
99aa6b34 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
2f61b8ca 214# Find the build and target subdir names.
6f4f34a7 215GCC_TOPLEV_SUBDIRS
04a2e841 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
7bb9dd92 221
13b1b53a 222# Skipdirs are removed silently.
223skipdirs=
224# Noconfigdirs are removed loudly.
225noconfigdirs=""
28e9041c 226
13b1b53a 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
3d47fcf5 231 noconfigdirs="$noconfigdirs ld gold"
28e9041c 232fi
233
13b1b53a 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"
28e9041c 239fi
240
7bfefa9d 241use_included_zlib=
6406d366 242AC_ARG_WITH(system-zlib,
243[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
7bfefa9d 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
13b1b53a 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.
28e9041c 252
13b1b53a 253case ${with_x} in
254 yes | "") ;; # the default value for this tree is that X11 is available
f6c0123d 255 no)
f843f075 256 skipdirs="${skipdirs} tk itcl libgui"
f6c0123d 257 # We won't be able to build gdbtk without X.
258 enable_gdbtk=no
259 ;;
13b1b53a 260 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
261esac
28e9041c 262
6c9785b4 263# Some are only suitable for cross toolchains.
2a1ac811 264# Remove these if host=target.
265cross_only="target-libgloss target-newlib target-opcodes"
28e9041c 266
13b1b53a 267case $is_cross_compiler in
268 no) skipdirs="${skipdirs} ${cross_only}" ;;
13b1b53a 269esac
28e9041c 270
4ff41e84 271# If both --with-headers and --with-libs are specified, default to
272# --without-newlib.
3bdd04cc 273if test x"${with_headers}" != x && test x"${with_headers}" != xno \
274 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
4ff41e84 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
a3d93be3 286AC_ARG_ENABLE(as-accelerator-for,
287[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
288 [build as offload target compiler.
67cedda8 289 Specify offload host triple by ARG])])
a3d93be3 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
1e369e5f 302# Handle --enable-gold, --enable-ld.
303# --disable-gold [--enable-ld]
304# Build only ld. Default option.
85516948 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]
1e369e5f 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
85516948 314# Build both gold (installed as "ld.gold") and ld (installed as "ld"
315# and ld.bfd).
1e369e5f 316# In other words, ld is default
317# --enable-gold=default --enable-ld=default
318# Error.
319
320default_ld=
3d47fcf5 321AC_ARG_ENABLE(gold,
8747a938 322[AS_HELP_STRING([[--enable-gold[=ARG]]],
323 [build gold @<:@ARG={default,yes,no}@:>@])],
3d47fcf5 324ENABLE_GOLD=$enableval,
325ENABLE_GOLD=no)
1e369e5f 326case "${ENABLE_GOLD}" in
327 yes|default)
af7c5662 328 # Check for ELF target.
329 is_elf=no
330 case "${target}" in
331 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
e4c33dd2 332 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
e3a1fe08 333 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
9d36d513 334 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
af7c5662 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.
3d47fcf5 346 case "${target}" in
58f62c51 347 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
ca7ff757 348 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
1e369e5f 349 configdirs="$configdirs gold"
350 if test x${ENABLE_GOLD} = xdefault; then
351 default_ld=gold
352 fi
af7c5662 353 ENABLE_GOLD=yes
3d47fcf5 354 ;;
355 esac
af7c5662 356 fi
357 ;;
358 no)
359 ;;
360 *)
361 AC_MSG_ERROR([invalid --enable-gold argument])
362 ;;
1e369e5f 363esac
364
365AC_ARG_ENABLE(ld,
8747a938 366[AS_HELP_STRING([[--enable-ld[=ARG]]],
367 [build ld @<:@ARG={default,yes,no}@:>@])],
1e369e5f 368ENABLE_LD=$enableval,
369ENABLE_LD=yes)
370
371case "${ENABLE_LD}" in
372 default)
85516948 373 if test x${default_ld} != x; then
1e369e5f 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
3d47fcf5 389
afb6adb9 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,
325f661b 394[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
afb6adb9 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
28e9041c 403# Configure extra directories which are host specific
404
405case "${host}" in
13b1b53a 406 *-cygwin*)
805e22b2 407 configdirs="$configdirs libtermcap" ;;
28e9041c 408esac
409
ff7dcf6a 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
28e9041c 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
28e9041c 418case "${host}" in
b2240ff6 419 i[[3456789]]86-*-msdosdjgpp*)
e3a5e6ff 420 noconfigdirs="$noconfigdirs tcl tk itcl"
ed37269d 421 ;;
28e9041c 422esac
423
4ee9c684 424
d9d975ae 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
93341878 446AC_ARG_ENABLE(libada,
8747a938 447[AS_HELP_STRING([--enable-libada], [build libada directory])],
93341878 448ENABLE_LIBADA=$enableval,
449ENABLE_LIBADA=yes)
450if test "${ENABLE_LIBADA}" != "yes" ; then
a136b23d 451 noconfigdirs="$noconfigdirs gnattools"
93341878 452fi
453
07da5214 454AC_ARG_ENABLE(libssp,
8747a938 455[AS_HELP_STRING([--enable-libssp], [build libssp directory])],
07da5214 456ENABLE_LIBSSP=$enableval,
457ENABLE_LIBSSP=yes)
07da5214 458
d3cf0a31 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
df148e44 465 noconfigdirs="$noconfigdirs target-libstdc++-v3"
d3cf0a31 466fi]
467
d3a7dd32 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],
67cedda8 481[if test x"$enable_as_accelerator_for" != x; then
d3a7dd32 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
fdcd05c8 504# Enable libgomp by default on hosted POSIX systems, and a few others.
50996fe5 505if test x$enable_libgomp = x ; then
1e8e9920 506 case "${target}" in
3bef4012 507 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
1e8e9920 508 ;;
e3a1fe08 509 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
1e8e9920 510 ;;
5641963c 511 *-*-solaris2* | *-*-hpux11*)
1e8e9920 512 ;;
634efbee 513 *-*-darwin* | *-*-aix*)
1e8e9920 514 ;;
fdcd05c8 515 nvptx*-*-*)
516 ;;
1e8e9920 517 *)
518 noconfigdirs="$noconfigdirs target-libgomp"
519 ;;
520 esac
50996fe5 521fi
1e8e9920 522
6db1d2ca 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
4710dd51 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
d3a7dd32 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
42b15c81 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
4c0315d0 585fi
586
492e75a7 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
b710ec85 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; \
6d0992e1 609 test "$VTV_SUPPORTED" != "yes")
b710ec85 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
202baac8 619
620# Enable libmpx on supported systems by request.
621if test -d ${srcdir}/libmpx; then
067ef0d9 622 if test x$enable_libmpx = x; then
202baac8 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
202baac8 633 fi
634fi
635
636
637
286256c7 638# Disable libquadmath for some systems.
639case "${target}" in
c36ee471 640 avr-*-*)
641 noconfigdirs="$noconfigdirs target-libquadmath"
642 ;;
286256c7 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
d5831552 650# Disable libssp for some systems.
651case "${target}" in
652 avr-*-*)
76c19016 653 # No hosted I/O support.
d5831552 654 noconfigdirs="$noconfigdirs target-libssp"
655 ;;
656 powerpc-*-aix* | rs6000-*-aix*)
657 noconfigdirs="$noconfigdirs target-libssp"
658 ;;
78e515f7 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 ;;
8992df51 665 visium-*-*)
666 # No hosted I/O support.
667 noconfigdirs="$noconfigdirs target-libssp"
668 ;;
d5831552 669esac
670
d5831552 671# Disable libstdc++-v3 for some systems.
d3cf0a31 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 ;;
b6616c9c 686 ft32-*-*)
687 noconfigdirs="$noconfigdirs target-libstdc++-v3"
688 ;;
d3cf0a31 689 esac
690fi
d5831552 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
38cf534f 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 ;;
88afddbc 729 aarch64*-*-freebsd*)
730 noconfigdirs="$noconfigdirs target-libffi"
731 ;;
38cf534f 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
a6999726 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
1c5767f1 815# Default libgloss CPU subdirectory.
816libgloss_dir="$target_cpu"
4ee9c684 817
e0942c78 818case "${target}" in
819 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
820 libgloss_dir=wince
821 ;;
e26fddfa 822 aarch64*-*-* )
823 libgloss_dir=aarch64
824 ;;
e0942c78 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
d556f192 854# Disable newlib and libgloss for various target OSes.
28e9041c 855case "${target}" in
d556f192 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 ;;
f6dd84a6 886 *-*-chorusos)
71559dce 887 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
f6dd84a6 888 ;;
d556f192 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 ;;
38f4c967 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 ;;
40c500e1 932 powerpc-*-darwin*)
dba2c8ea 933 noconfigdirs="$noconfigdirs ld gas gdb gprof"
d28caca4 934 noconfigdirs="$noconfigdirs sim target-rda"
0894307c 935 ;;
ea864ded 936 i[[3456789]]86-*-darwin*)
937 noconfigdirs="$noconfigdirs ld gprof"
938 noconfigdirs="$noconfigdirs sim target-rda"
939 ;;
940 x86_64-*-darwin[[912]]*)
d9f9f3af 941 noconfigdirs="$noconfigdirs ld gas gprof"
942 noconfigdirs="$noconfigdirs sim target-rda"
943 ;;
fce068fd 944 *-*-darwin*)
945 noconfigdirs="$noconfigdirs ld gas gdb gprof"
946 noconfigdirs="$noconfigdirs sim target-rda"
fce068fd 947 ;;
e3a1fe08 948 *-*-dragonfly*)
e3a1fe08 949 ;;
c01dd063 950 *-*-freebsd*)
4ee9c684 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
4ee9c684 955 ;;
336577be 956 *-*-kaos*)
957 # Remove unsupported stuff on all kaOS configurations.
336577be 958 noconfigdirs="$noconfigdirs target-libgloss"
959 ;;
1602f15c 960 *-*-netbsd*)
1602f15c 961 ;;
634f7a13 962 *-*-netware*)
28e9041c 963 ;;
1d6aa005 964 *-*-phoenix*)
965 noconfigdirs="$noconfigdirs target-libgloss"
966 ;;
952fead6 967 *-*-rtems*)
f24be480 968 noconfigdirs="$noconfigdirs target-libgloss"
3e78a7ce 969 # this is not caught below because this stanza matches earlier
970 case $target in
971 or1k*-*-*) noconfigdirs="$noconfigdirs gdb" ;;
972 esac
952fead6 973 ;;
9f88bc9d 974 # The tpf target doesn't support gdb yet.
975 *-*-tpf*)
d556f192 976 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
9f88bc9d 977 ;;
688429c4 978 *-*-uclinux*)
d556f192 979 noconfigdirs="$noconfigdirs target-rda"
688429c4 980 ;;
28e9041c 981 *-*-vxworks*)
28e9041c 982 ;;
8c7cf808 983 alpha*-dec-osf*)
ebd9f514 984 # ld works, but does not support shared libraries.
28e9041c 985 # gas doesn't generate exception information.
d556f192 986 noconfigdirs="$noconfigdirs gas ld"
28e9041c 987 ;;
988 alpha*-*-*vms*)
f24be480 989 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
28e9041c 990 ;;
991 alpha*-*-*)
992 # newlib is not 64 bit ready
f24be480 993 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
28e9041c 994 ;;
8027f1d6 995 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
f843f075 996 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
8027f1d6 997 ;;
194b906d 998 arc*-*-*)
999 noconfigdirs="$noconfigdirs sim"
1000 ;;
28e9041c 1001 arm-*-pe*)
f24be480 1002 noconfigdirs="$noconfigdirs target-libgloss"
28e9041c 1003 ;;
ed37269d 1004 arm-*-riscix*)
71559dce 1005 noconfigdirs="$noconfigdirs ld target-libgloss"
ed37269d 1006 ;;
fd28e216 1007 avr-*-*)
1008 if test x${with_avrlibc} != xno; then
1009 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1010 fi
1011 ;;
6c5e2f80 1012 c4x-*-* | tic4x-*-*)
71559dce 1013 noconfigdirs="$noconfigdirs target-libgloss"
df2ff48f 1014 ;;
71559dce 1015 tic54x-*-*)
1016 noconfigdirs="$noconfigdirs target-libgloss gdb"
df2ff48f 1017 ;;
28e9041c 1018 d10v-*-*)
71559dce 1019 noconfigdirs="$noconfigdirs target-libgloss"
151ad919 1020 ;;
1021 d30v-*-*)
71559dce 1022 noconfigdirs="$noconfigdirs gdb"
28e9041c 1023 ;;
f9254114 1024 fr30-*-elf*)
f24be480 1025 noconfigdirs="$noconfigdirs gdb"
f9254114 1026 ;;
6406d366 1027 ft32-*-*)
1028 noconfigdirs="$noconfigdirs target-rda gprof"
1029 ;;
ca2751b6 1030 moxie-*-*)
6406d366 1031 noconfigdirs="$noconfigdirs"
ca2751b6 1032 ;;
df2ff48f 1033 h8300*-*-*)
f24be480 1034 noconfigdirs="$noconfigdirs target-libgloss"
df2ff48f 1035 ;;
28e9041c 1036 h8500-*-*)
71559dce 1037 noconfigdirs="$noconfigdirs target-libgloss"
28e9041c 1038 ;;
6675f2d9 1039 hppa1.1-*-osf* | hppa1.1-*-bsd* )
6675f2d9 1040 ;;
6406d366 1041 hppa*64*-*-hpux*)
1042 noconfigdirs="$noconfigdirs gdb"
1043 ;;
1044 hppa*-*-hpux11*)
1045 noconfigdirs="$noconfigdirs gdb ld"
1046 ;;
6bd59761 1047 hppa*64*-*-linux*)
954078d1 1048 ;;
99684e84 1049 hppa*-*-linux*)
08261f02 1050 ;;
28e9041c 1051 hppa*-*-*elf* | \
1ef89cd1 1052 hppa*-*-lites* | \
dc0ea924 1053 hppa*-*-openbsd* | \
1ef89cd1 1054 hppa*64*-*-*)
28e9041c 1055 ;;
1c5767f1 1056 hppa*-*-pro*)
1c5767f1 1057 ;;
28e9041c 1058 hppa*-*-*)
f24be480 1059 noconfigdirs="$noconfigdirs ld"
151ad919 1060 ;;
4a9237fb 1061 i960-*-*)
71559dce 1062 noconfigdirs="$noconfigdirs gdb"
4a9237fb 1063 ;;
151ad919 1064 ia64*-*-elf*)
1065 # No gdb support yet.
6c9785b4 1066 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
151ad919 1067 ;;
df2ff48f 1068 ia64*-**-hpux*)
1aca86a6 1069 # No ld support yet.
6406d366 1070 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
df2ff48f 1071 ;;
8408ca00 1072 ia64*-*-*vms*)
3211401d 1073 # No ld support yet.
1074 noconfigdirs="$noconfigdirs libgui itcl ld"
8408ca00 1075 ;;
ec2eb8fb 1076 i[[3456789]]86-w64-mingw*)
ec2eb8fb 1077 ;;
1078 i[[3456789]]86-*-mingw*)
d6d689df 1079 target_configdirs="$target_configdirs target-winsup"
fe284774 1080 ;;
151ad919 1081 *-*-cygwin*)
1082 target_configdirs="$target_configdirs target-libtermcap target-winsup"
6c9785b4 1083 noconfigdirs="$noconfigdirs target-libgloss"
2c10944d 1084 # always build newlib if winsup directory is present.
d6d689df 1085 if test -d "$srcdir/winsup/cygwin"; then
2c10944d 1086 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
3fba36a4 1087 elif test -d "$srcdir/newlib"; then
d6d689df 1088 echo "Warning: winsup/cygwin is missing so newlib can't be built."
2c10944d 1089 fi
fe284774 1090 ;;
f74ea578 1091 i[[3456789]]86-*-pe)
17b3d2a8 1092 noconfigdirs="$noconfigdirs target-libgloss"
28e9041c 1093 ;;
f74ea578 1094 i[[3456789]]86-*-sco3.2v5*)
28e9041c 1095 # The linker does not yet know about weak symbols in COFF,
1096 # and is not configured to handle mixed ELF and COFF.
71559dce 1097 noconfigdirs="$noconfigdirs ld target-libgloss"
28e9041c 1098 ;;
f74ea578 1099 i[[3456789]]86-*-sco*)
71559dce 1100 noconfigdirs="$noconfigdirs gprof target-libgloss"
28e9041c 1101 ;;
14f27bc6 1102 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
ef1760c1 1103 noconfigdirs="$noconfigdirs target-libgloss"
28e9041c 1104 ;;
f74ea578 1105 i[[3456789]]86-*-sysv4*)
71559dce 1106 noconfigdirs="$noconfigdirs target-libgloss"
28e9041c 1107 ;;
f74ea578 1108 i[[3456789]]86-*-beos*)
d556f192 1109 noconfigdirs="$noconfigdirs gdb"
602d002b 1110 ;;
ab0da556 1111 i[[3456789]]86-*-rdos*)
d556f192 1112 noconfigdirs="$noconfigdirs gdb"
1c5767f1 1113 ;;
38135c1e 1114 mmix-*-*)
f24be480 1115 noconfigdirs="$noconfigdirs gdb"
38135c1e 1116 ;;
957985d9 1117 mt-*-*)
f6fa11cb 1118 noconfigdirs="$noconfigdirs sim"
1119 ;;
28e9041c 1120 powerpc-*-aix*)
1121 # copied from rs6000-*-* entry
d556f192 1122 noconfigdirs="$noconfigdirs gprof"
28e9041c 1123 ;;
6bd59761 1124 powerpc*-*-winnt* | powerpc*-*-pe*)
28e9041c 1125 target_configdirs="$target_configdirs target-winsup"
71559dce 1126 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
28e9041c 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*)
71559dce 1132 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
28e9041c 1133 ;;
1532359f 1134 powerpc-*-beos*)
d556f192 1135 noconfigdirs="$noconfigdirs gdb"
151ad919 1136 ;;
28e9041c 1137 rs6000-*-lynxos*)
d556f192 1138 noconfigdirs="$noconfigdirs gprof"
28e9041c 1139 ;;
1140 rs6000-*-aix*)
d556f192 1141 noconfigdirs="$noconfigdirs gprof"
28e9041c 1142 ;;
1143 rs6000-*-*)
f24be480 1144 noconfigdirs="$noconfigdirs gprof"
28e9041c 1145 ;;
1146 m68k-apollo-*)
71559dce 1147 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
28e9041c 1148 ;;
ba2b484f 1149 microblaze*)
f24be480 1150 noconfigdirs="$noconfigdirs gprof"
ba2b484f 1151 ;;
3e78a7ce 1152 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
68c9bc25 1153 if test x$with_newlib = xyes; then
1154 noconfigdirs="$noconfigdirs gprof"
1155 fi
68c9bc25 1156 ;;
28e9041c 1157 mips*-*-irix5*)
71559dce 1158 noconfigdirs="$noconfigdirs gprof target-libgloss"
28e9041c 1159 ;;
1160 mips*-*-irix6*)
f24be480 1161 noconfigdirs="$noconfigdirs gprof target-libgloss"
28e9041c 1162 ;;
28e9041c 1163 mips*-*-bsd*)
d6449910 1164 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
28e9041c 1165 ;;
857f2cca 1166 mips*-*-linux*)
857f2cca 1167 ;;
d6449910 1168 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1169 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1170 noconfigdirs="$noconfigdirs ld gas gprof"
1171 ;;
28e9041c 1172 mips*-*-*)
f24be480 1173 noconfigdirs="$noconfigdirs gprof"
28e9041c 1174 ;;
8ce80784 1175 nvptx*-*-*)
8ce80784 1176 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1177 ;;
3e78a7ce 1178 or1k*-*-*)
1179 noconfigdirs="$noconfigdirs gdb"
1180 ;;
9a9b5abf 1181 sh-*-*)
39f6b116 1182 case "${target}" in
1183 sh*-*-elf)
f24be480 1184 ;;
39f6b116 1185 *)
f24be480 1186 noconfigdirs="$noconfigdirs target-libgloss" ;;
39f6b116 1187 esac
28e9041c 1188 ;;
1189 sparc-*-sunos4*)
d556f192 1190 if test x${is_cross_compiler} = xno ; then
28e9041c 1191 use_gnu_ld=no
1192 fi
1193 ;;
fa0a53e3 1194 tic6x-*-*)
ccdfa490 1195 noconfigdirs="$noconfigdirs sim"
fa0a53e3 1196 ;;
2da35515 1197 tilepro*-*-* | tilegx*-*-*)
e5fa74b2 1198 noconfigdirs="$noconfigdirs sim"
1199 ;;
28e9041c 1200 v810-*-*)
71559dce 1201 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
28e9041c 1202 ;;
1203 vax-*-*)
f24be480 1204 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
28e9041c 1205 ;;
28e9041c 1206esac
1207
28e9041c 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" ;;
13b1b53a 1213esac
28e9041c 1214
13b1b53a 1215# Work in distributions that contain no compiler tools, like Autoconf.
71ab34df 1216host_makefile_frag=/dev/null
13b1b53a 1217if test -d ${srcdir}/config ; then
1218case "${host}" in
f74ea578 1219 i[[3456789]]86-*-msdosdjgpp*)
13b1b53a 1220 host_makefile_frag="config/mh-djgpp"
1221 ;;
1222 *-cygwin*)
45043b2b 1223 ACX_CHECK_CYGWIN_CAT_WORKS
13b1b53a 1224 host_makefile_frag="config/mh-cygwin"
1225 ;;
5a92bcc2 1226 *-mingw*)
70d8e49e 1227 host_makefile_frag="config/mh-mingw"
06dd9e69 1228 ;;
bed3355c 1229 alpha*-linux*)
539ded76 1230 host_makefile_frag="config/mh-alpha-linux"
1231 ;;
3bed0958 1232 hppa*-hp-hpux10*)
3bed0958 1233 host_makefile_frag="config/mh-pa-hpux10"
13b1b53a 1234 ;;
b2240ff6 1235 hppa*-hp-hpux*)
3bed0958 1236 host_makefile_frag="config/mh-pa"
1237 ;;
1238 hppa*-*)
1239 host_makefile_frag="config/mh-pa"
1240 ;;
16463c8d 1241 *-*-darwin*)
1242 host_makefile_frag="config/mh-darwin"
0222d984 1243 ;;
9d44a802 1244 powerpc-*-aix*)
1245 host_makefile_frag="config/mh-ppc-aix"
1246 ;;
1247 rs6000-*-aix*)
1248 host_makefile_frag="config/mh-ppc-aix"
1249 ;;
13b1b53a 1250esac
1251fi
1252
c24c5e46 1253if test "${build}" != "${host}" ; then
93c5e793 1254 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1255 AS_FOR_BUILD=${AS_FOR_BUILD-as}
c24c5e46 1256 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
93c5e793 1257 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
93c5e793 1258 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
5ff5b630 1259 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
93c5e793 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}
c24c5e46 1266else
93c5e793 1267 AR_FOR_BUILD="\$(AR)"
1268 AS_FOR_BUILD="\$(AS)"
c24c5e46 1269 CC_FOR_BUILD="\$(CC)"
93c5e793 1270 CXX_FOR_BUILD="\$(CXX)"
93c5e793 1271 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
5ff5b630 1272 GOC_FOR_BUILD="\$(GOC)"
93c5e793 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)"
eae5b2bc 1279fi
c24c5e46 1280
eae5b2bc 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
c24c5e46 1301fi
1302
13687c85 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++)
74f1ea54 1311 AC_LINK_IFELSE([
1312#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1313#error -static-libstdc++ not implemented
1314#endif
1315int main() {}],
13687c85 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
c24c5e46 1323ACX_PROG_GNAT
7bcc3b4a 1324ACX_PROG_CMP_IGNORE_INITIAL
c24c5e46 1325
6c59dfa4 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.
d7c9b4c1 1332if test -r $srcdir/gcc/configure; then
1333 have_compiler=yes
1334else
1335 have_compiler=no
1336fi
6c59dfa4 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
27590679 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
dce53dbc 1372 CXX="$CXX -std=gnu++98"
27590679 1373fi
1374
c3fc6a63 1375# Used for setting $lt_cv_objdir
1376_LT_CHECK_OBJDIR
1377
7601a55c 1378# Check for GMP, MPFR and MPC
16de6a81 1379gmplibs="-lmpc -lmpfr -lgmp"
4ee9c684 1380gmpinc=
d45318b3 1381have_gmp=no
7601a55c 1382
1383# Specify a location for mpc
1384# check for this first so it ends up on the link line before mpfr.
8747a938 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])])
7601a55c 1396
1397if test "x$with_mpc" != x; then
16de6a81 1398 gmplibs="-L$with_mpc/lib $gmplibs"
1399 gmpinc="-I$with_mpc/include $gmpinc"
7601a55c 1400fi
1401if test "x$with_mpc_include" != x; then
16de6a81 1402 gmpinc="-I$with_mpc_include $gmpinc"
7601a55c 1403fi
1404if test "x$with_mpc_lib" != x; then
16de6a81 1405 gmplibs="-L$with_mpc_lib $gmplibs"
7601a55c 1406fi
1407if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
c3fc6a63 1408 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
16de6a81 1409 gmpinc='-I$$s/mpc/src '"$gmpinc"
7601a55c 1410 # Do not test the mpc version. Assume that it is sufficient, since
1411 # it is in the source tree, and the library has not been built yet
1412 # but it would be included on the link line in the version check below
1413 # hence making the test fail.
16de6a81 1414 have_gmp=yes
7601a55c 1415fi
d45318b3 1416
5ca838b8 1417# Specify a location for mpfr
1418# check for this first so it ends up on the link line before gmp.
8747a938 1419AC_ARG_WITH(mpfr-dir,
1420[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1421[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1422Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1423
1424AC_ARG_WITH(mpfr,
1425[AS_HELP_STRING([--with-mpfr=PATH],
1426 [specify prefix directory for installed MPFR package.
1427 Equivalent to --with-mpfr-include=PATH/include
1428 plus --with-mpfr-lib=PATH/lib])])
1429AC_ARG_WITH(mpfr-include,
1430[AS_HELP_STRING([--with-mpfr-include=PATH],
1431 [specify directory for installed MPFR include files])])
1432AC_ARG_WITH(mpfr-lib,
1433[AS_HELP_STRING([--with-mpfr-lib=PATH],
1434 [specify directory for the installed MPFR library])])
5ca838b8 1435
1436if test "x$with_mpfr" != x; then
1437 gmplibs="-L$with_mpfr/lib $gmplibs"
16de6a81 1438 gmpinc="-I$with_mpfr/include $gmpinc"
5ca838b8 1439fi
a5144c1d 1440if test "x$with_mpfr_include" != x; then
16de6a81 1441 gmpinc="-I$with_mpfr_include $gmpinc"
a5144c1d 1442fi
1443if test "x$with_mpfr_lib" != x; then
1444 gmplibs="-L$with_mpfr_lib $gmplibs"
1445fi
d45318b3 1446if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
efa1150d 1447 # MPFR v3.1.0 moved the sources into a src sub-directory.
1448 if ! test -d ${srcdir}/mpfr/src; then
1449 AC_MSG_ERROR([dnl
1450Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1451 fi
4b2246ef 1452 gmplibs='-L$$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"
d45318b3 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
5ca838b8 1461
4ee9c684 1462# Specify a location for gmp
8747a938 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])])
4ee9c684 1479
4ee9c684 1480
5ca838b8 1481if test "x$with_gmp" != x; then
1482 gmplibs="-L$with_gmp/lib $gmplibs"
1483 gmpinc="-I$with_gmp/include $gmpinc"
4ee9c684 1484fi
a5144c1d 1485if test "x$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 $gmplibs"
1490fi
d45318b3 1491if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
c3fc6a63 1492 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
d45318b3 1493 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
b9a8e4c4 1494 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
c3fc6a63 1495 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
e4128452 1496 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
d45318b3 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
4ee9c684 1503
16c9b2e3 1504if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
d45318b3 1505 have_gmp=yes
1506 saved_CFLAGS="$CFLAGS"
1507 CFLAGS="$CFLAGS $gmpinc"
17b6993a 1508 # Check for the recommended and required versions of GMP.
1509 AC_MSG_CHECKING([for the correct version of gmp.h])
d45318b3 1510 AC_TRY_COMPILE([#include "gmp.h"],[
17b6993a 1511 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1512 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
f819bb73 1513 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
112f3d57 1514 choke me
d45318b3 1515 #endif
4fd35f21 1516 ], [AC_TRY_COMPILE([#include <gmp.h>],[
17b6993a 1517 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1518 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1519 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1520 choke me
1521 #endif
4fd35f21 1522 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
17b6993a 1523 [AC_MSG_RESULT([no]); have_gmp=no])
d45318b3 1524
7601a55c 1525 # If we have GMP, check the MPFR version.
d45318b3 1526 if test x"$have_gmp" = xyes; then
17b6993a 1527 # Check for the recommended and required versions of MPFR.
1528 AC_MSG_CHECKING([for the correct version of mpfr.h])
7601a55c 1529 AC_TRY_COMPILE([#include <gmp.h>
d45318b3 1530 #include <mpfr.h>],[
cb1d9044 1531 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
d45318b3 1532 choke me
1533 #endif
4fd35f21 1534 ], [AC_TRY_COMPILE([#include <gmp.h>
7601a55c 1535 #include <mpfr.h>],[
17b6993a 1536 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
7601a55c 1537 choke me
1538 #endif
4fd35f21 1539 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
7601a55c 1540 [AC_MSG_RESULT([no]); have_gmp=no])
1541 fi
1542
1543 # Check for the MPC header version.
16de6a81 1544 if test x"$have_gmp" = xyes ; then
17b6993a 1545 # Check for the recommended and required versions of MPC.
7601a55c 1546 AC_MSG_CHECKING([for the correct version of mpc.h])
1547 AC_TRY_COMPILE([#include <mpc.h>],[
17b6993a 1548 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
7601a55c 1549 choke me
1550 #endif
4fd35f21 1551 ], [AC_TRY_COMPILE([#include <mpc.h>],[
17b6993a 1552 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1553 choke me
1554 #endif
4fd35f21 1555 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
17b6993a 1556 [AC_MSG_RESULT([no]); have_gmp=no])
7601a55c 1557 fi
1558
1559 # Now check the MPFR library.
1560 if test x"$have_gmp" = xyes; then
1561 saved_LIBS="$LIBS"
1562 LIBS="$LIBS $gmplibs"
16de6a81 1563 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1564 AC_TRY_LINK([#include <mpc.h>],[
78a477ad 1565 mpfr_t n;
1566 mpfr_t x;
16de6a81 1567 mpc_t c;
d45318b3 1568 int t;
78a477ad 1569 mpfr_init (n);
1570 mpfr_init (x);
d45318b3 1571 mpfr_atan2 (n, n, x, GMP_RNDN);
1572 mpfr_erfc (n, x, GMP_RNDN);
1573 mpfr_subnormalize (x, t, GMP_RNDN);
16de6a81 1574 mpfr_clear(n);
1575 mpfr_clear(x);
1576 mpc_init2 (c, 53);
1577 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1578 mpc_cosh (c, c, MPC_RNDNN);
1579 mpc_pow (c, c, c, MPC_RNDNN);
1580 mpc_acosh (c, c, MPC_RNDNN);
1581 mpc_clear (c);
7601a55c 1582 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1583 LIBS="$saved_LIBS"
d45318b3 1584 fi
7601a55c 1585
d45318b3 1586 CFLAGS="$saved_CFLAGS"
4ee9c684 1587
17b6993a 1588# The library versions listed in the error message below should match
1589# the HARD-minimums enforced above.
d45318b3 1590 if test x$have_gmp != xyes; then
cb1d9044 1591 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
16de6a81 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.])
d45318b3 1600 fi
6a086156 1601fi
1602
7601a55c 1603# Flags needed for both GMP, MPFR and/or MPC.
4ee9c684 1604AC_SUBST(gmplibs)
1605AC_SUBST(gmpinc)
bff7ea4a 1606AC_SUBST(extra_mpfr_configure_flags)
7601a55c 1607AC_SUBST(extra_mpc_gmp_configure_flags)
1608AC_SUBST(extra_mpc_mpfr_configure_flags)
e4128452 1609AC_SUBST(extra_isl_gmp_configure_flags)
4ee9c684 1610
7ab76cec 1611# Libraries to use for stage1 or when not bootstrapping.
1612AC_ARG_WITH(stage1-libs,
8747a938 1613[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
7ab76cec 1614[if test "$withval" = "no" -o "$withval" = "yes"; then
1615 stage1_libs=
1616 else
1617 stage1_libs=$withval
1618 fi],
9d71bbdc 1619[stage1_libs=])
7ab76cec 1620AC_SUBST(stage1_libs)
1621
13687c85 1622# Linker flags to use for stage1 or when not bootstrapping.
1623AC_ARG_WITH(stage1-ldflags,
1624[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1625[if test "$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
9d71bbdc 1639# Libraries to use for stage2 and later builds.
7ab76cec 1640AC_ARG_WITH(boot-libs,
8747a938 1641[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
7ab76cec 1642[if test "$withval" = "no" -o "$withval" = "yes"; then
1643 poststage1_libs=
1644 else
5110389d 1645 poststage1_libs=$withval
7ab76cec 1646 fi],
9d71bbdc 1647[poststage1_libs=])
7ab76cec 1648AC_SUBST(poststage1_libs)
1649
d6dfe18a 1650# Linker flags to use for stage2 and later builds.
1651AC_ARG_WITH(boot-ldflags,
8747a938 1652[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1653 [linker flags for stage2 and later])],
d6dfe18a 1654[if test "$withval" = "no" -o "$withval" = "yes"; then
1655 poststage1_ldflags=
1656 else
1657 poststage1_ldflags=$withval
1658 fi],
1659[poststage1_ldflags=
7deb2d70 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 "$poststage1_libs" = ""; then
d6dfe18a 1664 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1665 fi])
1666AC_SUBST(poststage1_ldflags)
1667
71130ef8 1668# GCC GRAPHITE dependency isl.
572cf1f7 1669# Basic setup is inlined here, actual checks are in config/isl.m4
83d54ac4 1670
83d54ac4 1671AC_ARG_WITH(isl,
1672 [AS_HELP_STRING(
1673 [--with-isl=PATH],
71130ef8 1674 [Specify prefix directory for the installed isl package.
83d54ac4 1675 Equivalent to --with-isl-include=PATH/include
1676 plus --with-isl-lib=PATH/lib])])
1677
429cca51 1678# Treat --without-isl as a request to disable
83d54ac4 1679# GRAPHITE support and skip all following checks.
429cca51 1680if test "x$with_isl" != "xno"; then
71130ef8 1681 # Check for isl
83d54ac4 1682 dnl Provide configure switches and initialize islinc & isllibs
1683 dnl with user input.
1684 ISL_INIT_FLAGS
71130ef8 1685 dnl The versions of isl that work for Graphite
b6de67fd 1686 ISL_CHECK_VERSION()
71130ef8 1687 dnl Only execute fail-action, if isl has been requested.
87e20041 1688 ISL_IF_FAILED([
71130ef8 1689 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
255b6be7 1690fi
255b6be7 1691
71130ef8 1692# If the isl check failed, disable builds of in-tree variant of isl
83d54ac4 1693if test "x$with_isl" = xno ||
83d54ac4 1694 test "x$gcc_cv_isl" = xno; then
572cf1f7 1695 noconfigdirs="$noconfigdirs isl"
83d54ac4 1696 islinc=
429cca51 1697fi
1698
1699AC_SUBST(isllibs)
83d54ac4 1700AC_SUBST(islinc)
83d54ac4 1701
7bfefa9d 1702# Check for LTO support.
1703AC_ARG_ENABLE(lto,
8747a938 1704[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
7bfefa9d 1705enable_lto=$enableval,
1706enable_lto=yes; default_enable_lto=yes)
1707
25630dc7 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
4ae8c98f 1711 case $target in
7aa50266 1712 *-apple-darwin9* | *-cygwin* | *-mingw* | *djgpp*) ;;
25630dc7 1713 # On other non-ELF platforms, LTO has yet to be validated.
4ae8c98f 1714 *) enable_lto=no ;;
1715 esac
4d992eb6 1716 else
62932e4d 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
4d992eb6 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 $target in
7aa50266 1723 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
4d992eb6 1724 *) if test x"$enable_lto" = x"yes"; then
1725 AC_MSG_ERROR([LTO support is not enabled for this target.])
1726 fi
1727 ;;
1728 esac
1729 fi
ca42e774 1730 # Among non-ELF, only Windows platforms support the lto-plugin so far.
25630dc7 1731 # Build it unless LTO was explicitly disabled.
ca42e774 1732 case $target in
25630dc7 1733 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
ca42e774 1734 *) ;;
1735 esac
25630dc7 1736])
7bfefa9d 1737
1015a063 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
255b6be7 1751
2b15d2ba 1752# By default, C and C++ are the only stage 1 languages.
9c3a0a29 1753stage1_languages=,c,
2d64c2fd 1754
7ab76cec 1755# Target libraries that we bootstrap.
5c96a839 1756bootstrap_target_libs=,target-libgcc,
7ab76cec 1757
c24c5e46 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}"
e757a6a8 1767 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
c24c5e46 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
e757a6a8 1775 echo configure.ac: --enable-languages needs at least one language argument 1>&2
c24c5e46 1776 exit 1
1777 fi
1778 fi
1779 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1780
2c718da0 1781 # 'f95' is the old name for the 'fortran' language. We issue a warning
1782 # and make the substitution.
1783 case ,${enable_languages}, in
1784 *,f95,*)
e757a6a8 1785 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
2c718da0 1786 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1787 ;;
1788 esac
1789
2b15d2ba 1790 # If bootstrapping, C++ must be enabled.
1791 case ",$enable_languages,:$enable_bootstrap" in
1792 *,c++,*:*) ;;
1793 *:yes)
6c59dfa4 1794 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1795 enable_languages="${enable_languages},c++"
1796 else
2b15d2ba 1797 AC_MSG_ERROR([bootstrapping requires c++ sources])
6c59dfa4 1798 fi
1799 ;;
1800 esac
1801
c24c5e46 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 *)
101ddbe4 1812 # From the config-lang.in, get $language, $lang_requires, and
1813 # $lang_requires_boot_languages.
c24c5e46 1814 language=
1815 lang_requires=
101ddbe4 1816 lang_requires_boot_languages=
c24c5e46 1817 . ${lang_frag}
101ddbe4 1818 for other in ${lang_requires} ${lang_requires_boot_languages}; do
c24c5e46 1819 case ,${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
101ddbe4 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
c24c5e46 1844 ;;
1845 esac
1846 done
1847
9c3a0a29 1848 new_enable_languages=,c,
7bfefa9d 1849
1850 # If LTO is enabled, add the LTO front end.
7bfefa9d 1851 if test "$enable_lto" = "yes" ; then
d6ef094a 1852 case ,${enable_languages}, in
1853 *,lto,*) ;;
1854 *) enable_languages="${enable_languages},lto" ;;
1855 esac
ca42e774 1856 if test "${build_lto_plugin}" = "yes" ; then
7bfefa9d 1857 configdirs="$configdirs lto-plugin"
7bfefa9d 1858 fi
1859 fi
7bfefa9d 1860
dd87c525 1861 # If we're building an offloading compiler, add the LTO front end.
1862 if test x"$enable_as_accelerator_for" != x ; then
1863 case ,${enable_languages}, in
1864 *,lto,*) ;;
1865 *) enable_languages="${enable_languages},lto" ;;
1866 esac
1867 fi
1868
c24c5e46 1869 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
9c3a0a29 1870 potential_languages=,c,
c24c5e46 1871
604a285a 1872 enabled_target_libs=
1873 disabled_target_libs=
1874
c24c5e46 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,
2d64c2fd 1883 # $lang_dirs, $boot_language, and $build_by_default
c24c5e46 1884 language=
1885 target_libs=
1886 lang_dirs=
5dee13c2 1887 subdir_requires=
9c3a0a29 1888 boot_language=no
1889 build_by_default=yes
c24c5e46 1890 . ${lang_frag}
9c3a0a29 1891 if test x${language} = x; then
1892 echo "${lang_frag} doesn't set \$language." 1>&2
1893 exit 1
1894 fi
1895
ef3c41c7 1896 if test "$language" = "c++"; then
2b15d2ba 1897 boot_language=yes
7ab76cec 1898 fi
1899
a2ecd49c 1900 add_this_lang=no
9c3a0a29 1901 case ,${enable_languages}, in
1902 *,${language},*)
e53d55e7 1903 # Language was explicitly selected; include it
1904 # unless it is C, which is enabled by default.
1905 if test "$language" != "c"; then
1906 add_this_lang=yes
1907 fi
c24c5e46 1908 ;;
9c3a0a29 1909 *,all,*)
1910 # 'all' was selected, select it if it is a default language
a2ecd49c 1911 if test "$language" != "c"; then
1912 add_this_lang=${build_by_default}
1913 fi
c24c5e46 1914 ;;
1915 esac
4ee9c684 1916
5dee13c2 1917 # Disable languages that need other directories if these aren't available.
9333ae0b 1918 for i in $subdir_requires; do
3891e7d9 1919 test -f "$srcdir/gcc/$i/config-lang.in" && continue
5dee13c2 1920 case ,${enable_languages}, in
1921 *,${language},*)
1922 # Specifically requested language; tell them.
1923 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1924 ;;
1925 *)
1926 # Silently disable.
9c3a0a29 1927 add_this_lang=unsupported
5dee13c2 1928 ;;
1929 esac
1930 done
1931
9c3a0a29 1932 # Disable Ada if no preexisting GNAT is available.
1933 case ,${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
ff7dcf6a 1944 # Disable a language that is unsupported by the target.
1945 case " $unsupported_languages " in
1946 *" $language "*)
9c3a0a29 1947 add_this_lang=unsupported
ff7dcf6a 1948 ;;
1949 esac
1950
4ee9c684 1951 case $add_this_lang in
9c3a0a29 1952 unsupported)
c24c5e46 1953 # Remove language-dependent dirs.
604a285a 1954 disabled_target_libs="$disabled_target_libs $target_libs"
1955 noconfigdirs="$noconfigdirs $lang_dirs"
2d64c2fd 1956 ;;
9c3a0a29 1957 no)
1958 # Remove language-dependent dirs; still show language as supported.
604a285a 1959 disabled_target_libs="$disabled_target_libs $target_libs"
1960 noconfigdirs="$noconfigdirs $lang_dirs"
9c3a0a29 1961 potential_languages="${potential_languages}${language},"
1962 ;;
1963 yes)
1964 new_enable_languages="${new_enable_languages}${language},"
1965 potential_languages="${potential_languages}${language},"
2d64c2fd 1966 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
604a285a 1967 enabled_target_libs="$enabled_target_libs $target_libs"
32027446 1968 case "${boot_language}:,$enable_stage1_languages," in
1969 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
aff6cf7b 1970 # Add to (comma-separated) list of stage 1 languages.
32027446 1971 case ",$stage1_languages," in
1972 *,$language,* | ,yes, | ,all,) ;;
1973 *) stage1_languages="${stage1_languages}${language}," ;;
1974 esac
7ab76cec 1975 # We need to bootstrap any supporting libraries.
1976 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2d64c2fd 1977 ;;
1978 esac
1979 ;;
c24c5e46 1980 esac
1981 ;;
1982 esac
1983 done
1984
604a285a 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 $dir" ;;
1992 esac
1993 done
1994 fi
1995
9c3a0a29 1996 AC_ARG_ENABLE(stage1-languages,
8747a938 1997 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
1998 [choose additional languages to build during
1999 stage1. Mostly useful for compiler development])],
9c3a0a29 2000 [case ,${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 "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
989edd2f 2031 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
9c3a0a29 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
c24c5e46 2035 if test "x$missing_languages" != x; then
2036 AC_MSG_ERROR([
e8bfe1fa 2037The following requested languages could not be built: ${missing_languages}
9c3a0a29 2038Supported languages are: ${potential_languages}])
c24c5e46 2039 fi
c24c5e46 2040 if test "x$new_enable_languages" != "x$enable_languages"; then
2041 echo The following languages will be built: ${new_enable_languages}
9c3a0a29 2042 enable_languages="$new_enable_languages"
c24c5e46 2043 fi
9c3a0a29 2044
2045 AC_SUBST(stage1_languages)
b0e9b581 2046 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
c24c5e46 2047fi
2048
50996fe5 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`
d2d2630b 2052 varname=`echo $dirname | sed -e s/+/_/g`
2053 if eval test x\${enable_${varname}} "=" xno ; then
50996fe5 2054 noconfigdirs="$noconfigdirs $dir"
2055 fi
2056done
2057
03869f98 2058# Check for Boehm's garbage collector
2059AC_ARG_ENABLE(objc-gc,
2060[AS_HELP_STRING([--enable-objc-gc],
2061 [enable use of Boehm's garbage collector with the
baf71228 2062 GNU Objective-C runtime])])
2063AC_ARG_WITH([target-bdw-gc],
2064[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2065 [specify prefix directory for installed bdw-gc package.
2066 Equivalent to --with-target-bdw-gc-include=PATH/include
2067 plus --with-target-bdw-gc-lib=PATH/lib])])
2068AC_ARG_WITH([target-bdw-gc-include],
2069[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2070 [specify directories for installed bdw-gc include files])])
2071AC_ARG_WITH([target-bdw-gc-lib],
2072[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2073 [specify directories for installed bdw-gc library])])
2074
2075case ,${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
74dfdbe3 2078 dnl no bdw-gw options, assume default locations
2079 AC_MSG_RESULT([using bdw-gc in default locations])
baf71228 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
03869f98 2090esac
2091
d3a7dd32 2092# Disable libcilkrts, libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
b33ca042 2093case ,${enable_languages}, in
df148e44 2094 *,c++,*)
2095 # Disable libcilkrts, libitm, libsanitizer if we're not building libstdc++
2096 case "${noconfigdirs}" in
2097 *target-libstdc++-v3*)
2098 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer"
2099 ;;
2100 *) ;;
2101 esac
2102 ;;
b33ca042 2103 *)
d3a7dd32 2104 noconfigdirs="$noconfigdirs target-libcilkrts target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
b33ca042 2105 ;;
2106esac
dd6d3a67 2107
6675f2d9 2108# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2109# $build_configdirs and $target_configdirs.
c24c5e46 2110# If we have the source for $noconfigdirs entries, add them to $notsupp.
2111
2112notsupp=""
2113for dir in . $skipdirs $noconfigdirs ; do
6675f2d9 2114 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
c24c5e46 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
6675f2d9 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
c24c5e46 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 $dir"
2142 fi
2143 fi
2144 fi
2145done
2146
c24c5e46 2147# Quietly strip out all directories which aren't configurable in this tree.
2148# This relies on all configurable subdirectories being autoconfiscated, which
2149# is now the case.
2f8725b0 2150build_configdirs_all="$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} $i"
2156 fi
2157done
2158
c24c5e46 2159configdirs_all="$configdirs"
2160configdirs=
2161for i in ${configdirs_all} ; do
2162 if test -f ${srcdir}/$i/configure ; then
2163 configdirs="${configdirs} $i"
2164 fi
2165done
2f8725b0 2166
c24c5e46 2167target_configdirs_all="$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} $i"
2173 fi
2174done
2175
1015a063 2176# libiberty-linker-plugin is special: it doesn't have its own source directory,
2177# so we have to add it after the preceding checks.
2178if test x"$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
944792ef 2191# Sometimes we have special requirements for the host libiberty.
2192extra_host_libiberty_configure_flags=
c850ece7 2193extra_host_zlib_configure_flags=
944792ef 2194case " $configdirs " in
2195 *" lto-plugin "* | *" libcc1 "*)
2196 # When these are to be built as shared libraries, the same applies to
2197 # libiberty.
2198 extra_host_libiberty_configure_flags=--enable-shared
2199 ;;
c850ece7 2200 *" bfd "*)
2201 # When bfd is to be built as a shared library, the same applies to
2202 # zlib.
2203 if test "$enable_shared" = "yes"; then
2204 extra_host_zlib_configure_flags=--enable-host-shared
2205 fi
2206 ;;
944792ef 2207esac
2208AC_SUBST(extra_host_libiberty_configure_flags)
c850ece7 2209AC_SUBST(extra_host_zlib_configure_flags)
944792ef 2210
c24c5e46 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
2f8725b0 2228 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
c24c5e46 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
eae5b2bc 2251# To find our prefix, in gcc_cv_tool_prefix.
2252ACX_TOOL_DIRS
2253
c24c5e46 2254copy_dirs=
2255
ffa8502d 2256AC_ARG_WITH([build-sysroot],
8747a938 2257 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2258 [use sysroot as the system root during the build])],
ffa8502d 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
5f1f2de5 2265AC_ARG_WITH([debug-prefix-map],
8747a938 2266 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2267 [map A to B, C to D ... in debug information])],
5f1f2de5 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=$debug_map"
2272 done
2273 fi],
2274 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2275AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2276
c898f165 2277# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2278# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2279# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2280# We want to ensure that TARGET libraries (which we know are built with
2281# gcc) are built with "-O2 -g", so include those options when setting
2282# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2283if test "x$CFLAGS_FOR_TARGET" = x; then
f5fad380 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 $CFLAGS_FOR_TARGET" ;;
2295 esac
2296 fi
c898f165 2297fi
2298AC_SUBST(CFLAGS_FOR_TARGET)
2299
2300if test "x$CXXFLAGS_FOR_TARGET" = x; then
f5fad380 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
c898f165 2314fi
2315AC_SUBST(CXXFLAGS_FOR_TARGET)
2316
ed9516f5 2317AC_SUBST(LDFLAGS_FOR_TARGET)
2318
c24c5e46 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"${with_headers}" != xyes ; then
eae5b2bc 2327 x=${gcc_cv_tool_prefix}
b30fcfae 2328 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
c24c5e46 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"${with_libs}" != xyes ; then
2341 # Copy the libraries in reverse order, so that files in the first named
2342 # library override files in subsequent libraries.
eae5b2bc 2343 x=${gcc_cv_tool_prefix}
c24c5e46 2344 for l in ${with_libs}; do
b30fcfae 2345 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
c24c5e46 2346 done
2347 fi
2348fi
2349
7bfefa9d 2350# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
c47832b1 2351#
2352# This is done by determining whether or not the appropriate directory
2353# is available, and by checking whether or not specific configurations
2354# have requested that this magic not happen.
2355#
2356# The command line options always override the explicit settings in
e757a6a8 2357# configure.ac, and the settings in configure.ac override this magic.
c47832b1 2358#
2359# If the default for a toolchain is to use GNU as and ld, and you don't
2360# want to do that, then you should use the --without-gnu-as and
7bfefa9d 2361# --without-gnu-ld options for the configure script. Similarly, if
2362# the default is to use the included zlib and you don't want to do that,
2363# you should use the --with-system-zlib option for the configure script.
c47832b1 2364
2365if test x${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 &&
3d47fcf5 2372 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
c47832b1 2373 with_gnu_ld=yes
2374 extra_host_args="$extra_host_args --with-gnu-ld"
2375fi
2376
7bfefa9d 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
c47832b1 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
c24c5e46 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 > $2/COPIED
2420 fi
2421 shift; shift
2422done
2423
c47832b1 2424# Determine a target-dependent exec_prefix that the installed
2425# gcc will search in. Keep this list sorted by triplet, with
2426# the *-*-osname triplets last.
2427md_exec_prefix=
2428case "${target}" in
09c2d953 2429 i[[34567]]86-pc-msdosdjgpp*)
c47832b1 2430 md_exec_prefix=/dev/env/DJDIR/bin
2431 ;;
c47832b1 2432 *-*-hpux* | \
c47832b1 2433 *-*-nto-qnx* | \
93faf308 2434 *-*-solaris2*)
c47832b1 2435 md_exec_prefix=/usr/ccs/bin
2436 ;;
2437esac
2438
805e22b2 2439extra_arflags_for_target=
2440extra_nmflags_for_target=
b437616a 2441extra_ranlibflags_for_target=
71ab34df 2442target_makefile_frag=/dev/null
13b1b53a 2443case "${target}" in
57c7de11 2444 spu-*-*)
2445 target_makefile_frag="config/mt-spu"
2446 ;;
3e78a7ce 2447 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
f8520ad7 2448 target_makefile_frag="config/mt-sde"
2449 ;;
3013c2c7 2450 mipsisa*-*-elfoabi*)
2451 target_makefile_frag="config/mt-mips-elfoabi"
2452 ;;
559b0712 2453 mips*-*-*linux* | mips*-*-gnu*)
2454 target_makefile_frag="config/mt-mips-gnu"
2455 ;;
2481a2c1 2456 nios2-*-elf*)
2457 target_makefile_frag="config/mt-nios2-elf"
2458 ;;
3bef4012 2459 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
cb8a7007 2460 target_makefile_frag="config/mt-gnu"
13b1b53a 2461 ;;
71ab34df 2462 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
805e22b2 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"
13b1b53a 2468 ;;
70af7570 2469esac
2470
71ab34df 2471alphaieee_frag=/dev/null
70af7570 2472case $target in
2473 alpha*-*-*)
2474 # This just makes sure to use the -mieee option to build target libs.
2475 # This should probably be set individually by each library.
2476 alphaieee_frag="config/mt-alphaieee"
13b1b53a 2477 ;;
2478esac
b138c834 2479
13b1b53a 2480# If --enable-target-optspace always use -Os instead of -O2 to build
2481# the target libraries, similarly if it is not specified, use -Os
2482# on selected platforms.
71ab34df 2483ospace_frag=/dev/null
13b1b53a 2484case "${enable_target_optspace}:${target}" in
2485 yes:*)
70af7570 2486 ospace_frag="config/mt-ospace"
13b1b53a 2487 ;;
2488 :d30v-*)
70af7570 2489 ospace_frag="config/mt-d30v"
13b1b53a 2490 ;;
1c26a2ee 2491 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
70af7570 2492 ospace_frag="config/mt-ospace"
13b1b53a 2493 ;;
2494 no:* | :*)
2495 ;;
2496 *)
2497 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2498 ;;
2499esac
28e9041c 2500
71ab34df 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.
b30fcfae 2503tooldir='${exec_prefix}'/${target_noncanonical}
71ab34df 2504build_tooldir=${tooldir}
2505
71ab34df 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 ${srcdir}/.gdbinit
2517EOF
2518 ;;
2519 esac
2520fi
2521
28e9041c 2522# Make sure that the compiler is able to generate an executable. If it
2523# can't, we are probably in trouble. We don't care whether we can run the
2524# executable--we might be using a cross compiler--we only care whether it
2525# can be created. At this point the main configure script has set CC.
441f85dc 2526we_are_ok=no
28e9041c 2527echo "int main () { return 0; }" > conftest.c
2528${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
441f85dc 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} ${LDFLAGS} conftest.c' failed."
2537 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2538 rm -f conftest*
2539 exit 1
2540 ;;
2541esac
28e9041c 2542rm -f conftest*
2543
7d804f04 2544# Decide which environment variable is used to find dynamic libraries.
949b0daa 2545case "${host}" in
2546 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
b2240ff6 2547 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
7d804f04 2548 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
949b0daa 2549 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2550esac
949b0daa 2551
7d804f04 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
ee055341 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,
d5f3a33f 2608[AS_HELP_STRING([--enable-vtable-verify],
2609 [Enable vtable verification feature])],
ee055341 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
805e22b2 2618# Record target_configdirs and the configure arguments for target and
2619# build configuration in Makefile.
2620target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2f8725b0 2621build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
f4ae1a00 2622bootstrap_fixincludes=no
805e22b2 2623
5c96a839 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
ee055341 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,
f4ae1a00 2635 bootstrap_fixincludes=yes
ee055341 2636 ;;
2637 esac
579abfee 2638fi
2639
ee055341 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
b710ec85 2643 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2644fi
2645
202baac8 2646# If we are building libmpx, bootstrap it.
2647if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then
2648 bootstrap_target_libs=${bootstrap_target_libs}target-libmpx,
2649fi
2650
805e22b2 2651# Determine whether gdb needs tk/tcl or not.
2652# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2653# and in that case we want gdb to be built without tk. Ugh!
2654# In fact I believe gdb is the *only* package directly dependent on tk,
2655# so we should be able to put the 'maybe's in unconditionally and
2656# leave out the maybe dependencies when enable_gdbtk is false. I'm not
2657# 100% sure that that's safe though.
8fdaf281 2658
f843f075 2659gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
805e22b2 2660case "$enable_gdbtk" in
2661 no)
2662 GDB_TK="" ;;
8fdaf281 2663 yes)
2664 GDB_TK="${gdb_tk}" ;;
805e22b2 2665 *)
8fdaf281 2666 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2667 # distro. Eventually someone will fix this and move Insight, nee
2668 # gdbtk to a separate directory.
2669 if test -d ${srcdir}/gdb/gdbtk ; then
2670 GDB_TK="${gdb_tk}"
2671 else
2672 GDB_TK=""
2673 fi
2674 ;;
805e22b2 2675esac
415470be 2676CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2677INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
805e22b2 2678
01b41571 2679# Strip out unwanted targets.
6f4f34a7 2680
2681# While at that, we remove Makefiles if we were started for recursive
2682# configuration, so that the top-level Makefile reconfigures them,
2683# like we used to do when configure itself was recursive.
6f4f34a7 2684
8bb79148 2685# Loop over modules. We used to use the "$extrasub" feature from Autoconf
2686# but now we're fixing up the Makefile ourselves with the additional
2687# commands passed to AC_CONFIG_FILES. Use separate variables
2688# extrasub-{build,host,target} not because there is any reason to split
2689# the substitutions up that way, but only to remain below the limit of
2690# 99 commands in a script, for HP-UX sed.
2691# Do not nest @if/@endif pairs, because configure will not warn you at all.
6f4f34a7 2692
7b5fee3e 2693case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2694 yes:yes:*\ gold\ *:*,c++,*) ;;
2695 yes:yes:*\ gold\ *:*)
2696 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2697 ;;
2698esac
2699
8bb79148 2700extrasub_build=
2f8725b0 2701for module in ${build_configdirs} ; do
6f4f34a7 2702 if test -z "${no_recursion}" \
2703 && test -f ${build_subdir}/${module}/Makefile; then
2704 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2705 rm -f ${build_subdir}/${module}/Makefile
2706 fi
8bb79148 2707 extrasub_build="$extrasub_build
01b41571 2708/^@if build-$module\$/d
93f93279 2709/^@endif build-$module\$/d
2710/^@if build-$module-$bootstrap_suffix\$/d
2711/^@endif build-$module-$bootstrap_suffix\$/d"
6f4f34a7 2712done
8bb79148 2713extrasub_host=
6f4f34a7 2714for module in ${configdirs} ; do
9c19a746 2715 if test -z "${no_recursion}"; then
35d84d10 2716 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
9c19a746 2717 if test -f ${file}; then
2718 echo 1>&2 "*** removing ${file} to force reconfigure"
2719 rm -f ${file}
2720 fi
2721 done
6f4f34a7 2722 fi
f4ae1a00 2723 case ${module},${bootstrap_fixincludes} in
2724 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2725 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2726 esac
8bb79148 2727 extrasub_host="$extrasub_host
01b41571 2728/^@if $module\$/d
93f93279 2729/^@endif $module\$/d
f4ae1a00 2730/^@if $module-$host_bootstrap_suffix\$/d
2731/^@endif $module-$host_bootstrap_suffix\$/d"
6f4f34a7 2732done
8bb79148 2733extrasub_target=
6f4f34a7 2734for module in ${target_configdirs} ; do
2735 if test -z "${no_recursion}" \
2736 && test -f ${target_subdir}/${module}/Makefile; then
2737 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2738 rm -f ${target_subdir}/${module}/Makefile
2739 fi
7ab76cec 2740
2741 # We only bootstrap target libraries listed in bootstrap_target_libs.
2742 case $bootstrap_target_libs in
2743 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2744 *) target_bootstrap_suffix=no-bootstrap ;;
2745 esac
2746
8bb79148 2747 extrasub_target="$extrasub_target
01b41571 2748/^@if target-$module\$/d
93f93279 2749/^@endif target-$module\$/d
7ab76cec 2750/^@if target-$module-$target_bootstrap_suffix\$/d
2751/^@endif target-$module-$target_bootstrap_suffix\$/d"
805e22b2 2752done
54f0538b 2753
8bb79148 2754# Do the final fixup along with target modules.
2755extrasub_target="$extrasub_target
01b41571 2756/^@if /,/^@endif /d"
805e22b2 2757
2758# Create the serialization dependencies. This uses a temporary file.
2759
11d8013a 2760AC_ARG_ENABLE([serial-configure],
8747a938 2761[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2762 [force sequential configuration of
2763 sub-packages for the host, target or build
2764 machine, or all sub-packages])])
622c1fa9 2765
2766case ${enable_serial_configure} in
2767 yes)
2768 enable_serial_build_configure=yes
2769 enable_serial_host_configure=yes
2770 enable_serial_target_configure=yes
2771 ;;
2772esac
11d8013a 2773
805e22b2 2774# These force 'configure's to be done one at a time, to avoid problems
2775# with contention over a shared config.cache.
2776rm -f serdep.tmp
11d8013a 2777echo '# serdep.tmp' > serdep.tmp
805e22b2 2778olditem=
622c1fa9 2779test "x${enable_serial_build_configure}" = xyes &&
805e22b2 2780for item in ${build_configdirs} ; do
2781 case ${olditem} in
2782 "") ;;
11d8013a 2783 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
805e22b2 2784 esac
2785 olditem=${item}
2786done
2787olditem=
622c1fa9 2788test "x${enable_serial_host_configure}" = xyes &&
805e22b2 2789for item in ${configdirs} ; do
2790 case ${olditem} in
2791 "") ;;
11d8013a 2792 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
805e22b2 2793 esac
2794 olditem=${item}
2795done
2796olditem=
622c1fa9 2797test "x${enable_serial_target_configure}" = xyes &&
805e22b2 2798for item in ${target_configdirs} ; do
2799 case ${olditem} in
2800 "") ;;
11d8013a 2801 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
805e22b2 2802 esac
2803 olditem=${item}
2804done
71ab34df 2805serialization_dependencies=serdep.tmp
2806AC_SUBST_FILE(serialization_dependencies)
949b0daa 2807
11d8013a 2808# Base args. Strip norecursion, cache-file, srcdir, host, build,
b30fcfae 2809# target, nonopt, and variable assignments. These are the ones we
412c2e81 2810# might not want to pass down to subconfigures. The exception being
2811# --cache-file=/dev/null, which is used to turn off the use of cache
2812# files altogether, and which should be passed on to subconfigures.
2813# Also strip program-prefix, program-suffix, and program-transform-name,
2814# so that we can pass down a consistent program-transform-name.
b30fcfae 2815baseargs=
0e4d1862 2816tbaseargs=
b30fcfae 2817keep_next=no
2818skip_next=no
2819eval "set -- $ac_configure_args"
4ff792a4 2820for ac_arg
2821do
b30fcfae 2822 if test X"$skip_next" = X"yes"; then
2823 skip_next=no
2824 continue
2825 fi
2826 if test X"$keep_next" = X"yes"; then
2827 case $ac_arg in
2828 *\'*)
2829 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2830 esac
2831 baseargs="$baseargs '$ac_arg'"
0e4d1862 2832 tbaseargs="$tbaseargs '$ac_arg'"
b30fcfae 2833 keep_next=no
2834 continue
2835 fi
2836
2837 # Handle separated arguments. Based on the logic generated by
2838 # autoconf 2.59.
2839 case $ac_arg in
2840 *=* | --config-cache | -C | -disable-* | --disable-* \
2841 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2842 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2843 | -with-* | --with-* | -without-* | --without-* | --x)
2844 separate_arg=no
2845 ;;
2846 -*)
2847 separate_arg=yes
2848 ;;
2849 *)
2850 separate_arg=no
2851 ;;
2852 esac
2853
0e4d1862 2854 skip_targ=no
2855 case $ac_arg in
2856changequote(,)
2857 --with-* | --without-*)
2858 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2859
2860 case $libopt in
2861 *[-_]include)
2862 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2863 ;;
2864 *[-_]lib)
2865 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2866 ;;
2867 *)
2868 lib=$libopt
2869 ;;
2870 esac
2871changequote([,])
2872
2873 case $lib in
572cf1f7 2874 mpc | mpfr | gmp | isl)
0e4d1862 2875 # If we're processing --with-$lib, --with-$lib-include or
2876 # --with-$lib-lib, for one of the libs above, and target is
2877 # different from host, don't pass the current argument to any
2878 # target library's configure.
2879 if test x$is_cross_compiler = xyes; then
2880 skip_targ=yes
2881 fi
2882 ;;
2883 esac
2884 ;;
2885 esac
2886
b30fcfae 2887 case "$ac_arg" in
412c2e81 2888 --cache-file=/dev/null | \
2889 -cache-file=/dev/null )
2890 # Handled here to avoid the test to skip args below.
2891 baseargs="$baseargs '$ac_arg'"
0e4d1862 2892 tbaseargs="$tbaseargs '$ac_arg'"
412c2e81 2893 # Assert: $separate_arg should always be no.
2894 keep_next=$separate_arg
2895 ;;
b30fcfae 2896 --no*)
2897 continue
2898 ;;
2899 --c* | \
2900 --sr* | \
2901 --ho* | \
2902 --bu* | \
2903 --t* | \
2904 --program-* | \
2905 -cache_file* | \
2906 -srcdir* | \
2907 -host* | \
2908 -build* | \
2909 -target* | \
2910 -program-prefix* | \
2911 -program-suffix* | \
2912 -program-transform-name* )
2913 skip_next=$separate_arg
2914 continue
2915 ;;
2916 -*)
2917 # An option. Add it.
2918 case $ac_arg in
2919 *\'*)
2920 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2921 esac
2922 baseargs="$baseargs '$ac_arg'"
0e4d1862 2923 if test X"$skip_targ" = Xno; then
2924 tbaseargs="$tbaseargs '$ac_arg'"
2925 fi
b30fcfae 2926 keep_next=$separate_arg
2927 ;;
2928 *)
2929 # Either a variable assignment, or a nonopt (triplet). Don't
2930 # pass it down; let the Makefile handle this.
2931 continue
2932 ;;
2933 esac
2934done
2935# Remove the initial space we just introduced and, as these will be
2936# expanded by make, quote '$'.
2937baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
28e9041c 2938
fbfea1fa 2939# Add in --program-transform-name, after --program-prefix and
2940# --program-suffix have been applied to it. Autoconf has already
2941# doubled dollar signs and backslashes in program_transform_name; we want
2942# the backslashes un-doubled, and then the entire thing wrapped in single
2943# quotes, because this will be expanded first by make and then by the shell.
2944# Also, because we want to override the logic in subdir configure scripts to
2945# choose program_transform_name, replace any s,x,x, with s,y,y,.
2946sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2947${program_transform_name}
2948EOF_SED
2949gcc_transform_name=`cat conftestsed.out`
2950rm -f conftestsed.out
2951baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
0e4d1862 2952tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
af7bb0c0 2953if test "$silent" = yes; then
2954 baseargs="$baseargs --silent"
0e4d1862 2955 tbaseargs="$tbaseargs --silent"
af7bb0c0 2956fi
cd2f3773 2957baseargs="$baseargs --disable-option-checking"
0e4d1862 2958tbaseargs="$tbaseargs --disable-option-checking"
fbfea1fa 2959
372a3f1e 2960# Record and document user additions to sub configure arguments.
2961AC_ARG_VAR([build_configargs],
2962 [additional configure arguments for build directories])
2963AC_ARG_VAR([host_configargs],
2964 [additional configure arguments for host directories])
2965AC_ARG_VAR([target_configargs],
2966 [additional configure arguments for target directories])
2967
31972771 2968# For the build-side libraries, we just need to pretend we're native,
2969# and not use the same cache file. Multilibs are neither needed nor
b85b703b 2970# desired. We can't even use the same cache file for all build-side
2971# libraries, as they're compiled differently; some with C, some with
2972# C++ or with different feature-enabling options.
2973build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
64d298c9 2974
805e22b2 2975# For host modules, accept cache file option, or specification as blank.
2976case "${cache_file}" in
2977"") # empty
2978 cache_file_option="" ;;
71ab34df 2979/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
805e22b2 2980 cache_file_option="--cache-file=${cache_file}" ;;
2981*) # relative path
2982 cache_file_option="--cache-file=../${cache_file}" ;;
2983esac
2984
ba1081ef 2985# Host dirs don't like to share a cache file either, horribly enough.
2986# This seems to be due to autoconf 2.5x stupidity.
372a3f1e 2987host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
805e22b2 2988
0e4d1862 2989target_configargs="$target_configargs ${tbaseargs}"
31972771 2990
28e9041c 2991# Passing a --with-cross-host argument lets the target libraries know
2992# whether they are being built with a cross-compiler or being built
2993# native. However, it would be better to use other mechanisms to make the
2994# sorts of decisions they want to make on this basis. Please consider
2995# this option to be deprecated. FIXME.
441f85dc 2996if test x${is_cross_compiler} = xyes ; then
b30fcfae 2997 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
28e9041c 2998fi
2999
87ebeb4c 3000# Special user-friendly check for native x86_64-linux build, if
3001# multilib is not explicitly enabled.
3002case "$target:$have_compiler:$host:$target:$enable_multilib" in
3003 x86_64-*linux*:yes:$build:$build:)
6efd9d79 3004 # Make sure we have a development environment that handles 32-bit
87ebeb4c 3005 dev64=no
3006 echo "int main () { return 0; }" > conftest.c
3007 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3008 if test $? = 0 ; then
3009 if test -s conftest || test -s conftest.exe ; then
3010 dev64=yes
3011 fi
3012 fi
3013 rm -f conftest*
3014 if test x${dev64} != xyes ; then
6efd9d79 3015 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.])
87ebeb4c 3016 fi
3017 ;;
3018esac
3019
59a40389 3020# Default to --enable-multilib.
3021if test x${enable_multilib} = x ; then
3a7bfd0c 3022 target_configargs="--enable-multilib ${target_configargs}"
59a40389 3023fi
28e9041c 3024
ed37269d 3025# Pass --with-newlib if appropriate. Note that target_configdirs has
3026# changed from the earlier setting of with_newlib.
441f85dc 3027if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3a7bfd0c 3028 target_configargs="--with-newlib ${target_configargs}"
ed37269d 3029fi
3030
74fef112 3031# Different target subdirs use different values of certain variables
3032# (notably CXX). Worse, multilibs use *lots* of different values.
3033# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3034# it doesn't automatically accept command-line overrides of them.
3035# This means it's not safe for target subdirs to share a cache file,
3036# which is disgusting, but there you have it. Hopefully this can be
3037# fixed in future. It's still worthwhile to use a cache file for each
3038# directory. I think.
3039
a8abbd9d 3040# Pass the appropriate --build, --host, --target and --cache-file arguments.
3041# We need to pass --target, as newer autoconf's requires consistency
3042# for target_alias and gcc doesn't manage it consistently.
d45318b3 3043target_configargs="--cache-file=./config.cache ${target_configargs}"
31972771 3044
bc7af389 3045FLAGS_FOR_TARGET=
753fca8a 3046case " $target_configdirs " in
681dbe98 3047 *" newlib "*)
3a7bfd0c 3048 case " $target_configargs " in
681dbe98 3049 *" --with-newlib "*)
bc7af389 3050 case "$target" in
fe284774 3051 *-cygwin*)
db54564d 3052 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
fe284774 3053 ;;
bc7af389 3054 esac
3055
e2bac683 3056 # If we're not building GCC, don't discard standard headers.
296a0f54 3057 if test -d ${srcdir}/gcc; then
32999451 3058 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
e2bac683 3059
3060 if test "${build}" != "${host}"; then
3061 # On Canadian crosses, CC_FOR_TARGET will have already been set
3062 # by `configure', so we won't have an opportunity to add -Bgcc/
3063 # to it. This is right: we don't want to search that directory
3064 # for binaries, but we want the header files in there, so add
3065 # them explicitly.
e619f0a6 3066 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
e2bac683 3067
3068 # Someone might think of using the pre-installed headers on
3069 # Canadian crosses, in case the installed compiler is not fully
3070 # compatible with the compiler being built. In this case, it
3071 # would be better to flag an error than risking having
3072 # incompatible object files being constructed. We can't
3073 # guarantee that an error will be flagged, but let's hope the
3074 # compiler will do it, when presented with incompatible header
3075 # files.
3076 fi
32999451 3077 fi
3078
df2ff48f 3079 case "${target}-${is_cross_compiler}" in
f74ea578 3080 i[[3456789]]86-*-linux*-no)
df2ff48f 3081 # Here host == target, so we don't need to build gcc,
3082 # so we don't want to discard standard headers.
3083 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
df2ff48f 3084 ;;
3085 *)
3086 # If we're building newlib, use its generic headers last, but search
3087 # for any libc-related directories first (so make it the last -B
3088 # switch).
3089 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1c5767f1 3090
3091 # If we're building libgloss, find the startup file, simulator library
3092 # and linker script.
3093 case " $target_configdirs " in
3094 *" libgloss "*)
3095 # Look for startup file, simulator library and maybe linker script.
3096 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3097 # Look for libnosys.a in case the target needs it.
3098 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3099 # Most targets have the linker script in the source directory.
3100 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3101 ;;
3102 esac
df2ff48f 3103 ;;
3104 esac
bc7af389 3105 ;;
681dbe98 3106 esac
3107 ;;
bc7af389 3108esac
fe284774 3109
d6d689df 3110case "$target" in
fe284774 3111 x86_64-*mingw* | *-w64-mingw*)
3112 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3113 # however, use a symlink named 'mingw' in ${prefix} .
3114 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3115 ;;
3116 *-mingw*)
3117 # MinGW can't be handled as Cygwin above since it does not use newlib.
3118 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3119 ;;
d6d689df 3120esac
32999451 3121
d8e9ea04 3122# Allow the user to override the flags for
3123# our build compiler if desired.
823e8b8d 3124if test x"${build}" = x"${host}" ; then
3125 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3126 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3127 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3128fi
d8e9ea04 3129
32999451 3130# On Canadian crosses, we'll be searching the right directories for
3131# the previously-installed cross compiler, so don't bother to add
3132# flags for directories within the install tree of the compiler
3133# being built; programs in there won't even run.
296a0f54 3134if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
bc7af389 3135 # Search for pre-installed headers if nothing else fits.
5750c7d4 3136 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
bc7af389 3137fi
32999451 3138
753fca8a 3139if test "x${use_gnu_ld}" = x &&
13b1b53a 3140 echo " ${configdirs} " | grep " ld " > /dev/null ; then
bc7af389 3141 # Arrange for us to find uninstalled linker scripts.
c1eb9e31 3142 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
bc7af389 3143fi
3144
24714a39 3145# Search for other target-specific linker scripts and such.
3146case "${target}" in
38d7211b 3147 mep*)
3148 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3149 ;;
24714a39 3150esac
3151
71ab34df 3152# Makefile fragments.
03c65091 3153for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3154do
3155 eval fragval=\$$frag
3156 if test $fragval != /dev/null; then
3157 eval $frag=${srcdir}/$fragval
3158 fi
3159done
71ab34df 3160AC_SUBST_FILE(host_makefile_frag)
3161AC_SUBST_FILE(target_makefile_frag)
3162AC_SUBST_FILE(alphaieee_frag)
3163AC_SUBST_FILE(ospace_frag)
3164
3165# Miscellanea: directories, flags, etc.
71ab34df 3166AC_SUBST(RPATH_ENVVAR)
7d804f04 3167AC_SUBST(GCC_SHLIB_SUBDIR)
71ab34df 3168AC_SUBST(tooldir)
3169AC_SUBST(build_tooldir)
415470be 3170AC_SUBST(CONFIGURE_GDB_TK)
71ab34df 3171AC_SUBST(GDB_TK)
415470be 3172AC_SUBST(INSTALL_GDB_TK)
71ab34df 3173
3174# Build module lists & subconfigure args.
71ab34df 3175AC_SUBST(build_configargs)
2f8725b0 3176AC_SUBST(build_configdirs)
71ab34df 3177
3178# Host module lists & subconfigure args.
3179AC_SUBST(host_configargs)
3180AC_SUBST(configdirs)
1fda3360 3181AC_SUBST(target_configdirs)
71ab34df 3182
3183# Target module lists & subconfigure args.
71ab34df 3184AC_SUBST(target_configargs)
7601142f 3185
71ab34df 3186
3187# Build tools.
93c5e793 3188AC_SUBST(AR_FOR_BUILD)
3189AC_SUBST(AS_FOR_BUILD)
71ab34df 3190AC_SUBST(CC_FOR_BUILD)
93c5e793 3191AC_SUBST(CFLAGS_FOR_BUILD)
3192AC_SUBST(CXXFLAGS_FOR_BUILD)
3193AC_SUBST(CXX_FOR_BUILD)
3194AC_SUBST(DLLTOOL_FOR_BUILD)
93c5e793 3195AC_SUBST(GFORTRAN_FOR_BUILD)
5ff5b630 3196AC_SUBST(GOC_FOR_BUILD)
93c5e793 3197AC_SUBST(LDFLAGS_FOR_BUILD)
3198AC_SUBST(LD_FOR_BUILD)
3199AC_SUBST(NM_FOR_BUILD)
3200AC_SUBST(RANLIB_FOR_BUILD)
3201AC_SUBST(WINDMC_FOR_BUILD)
3202AC_SUBST(WINDRES_FOR_BUILD)
71ab34df 3203
f5aebe3e 3204# Generate default definitions for YACC, M4, LEX and other programs that run
3205# on the build machine. These are used if the Makefile can't locate these
3206# programs in objdir.
3207MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3208
3209AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3210case " $build_configdirs " in
3211 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
f5aebe3e 3212esac
3213
3214AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3215case " $build_configdirs " in
3216 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3217esac
3218
3219AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3220case " $build_configdirs " in
3221 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3222esac
3223
3224AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3225case " $build_configdirs " in
3226 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3227 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3228esac
3229
3230AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3231case " $build_configdirs " in
3232 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3233esac
3234
3235AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3236case " $build_configdirs " in
3237 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3238 *)
3239changequote(,)
03caadda 3240 # For an installed makeinfo, we require it to be from texinfo 4.7 or
f5aebe3e 3241 # higher, else we use the "missing" dummy.
3242 if ${MAKEINFO} --version \
03caadda 3243 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
f5aebe3e 3244 :
3245 else
3246 MAKEINFO="$MISSING makeinfo"
3247 fi
3248 ;;
3249changequote([,])
3250esac
3251
3252# FIXME: expect and dejagnu may become build tools?
3253
3254AC_CHECK_PROGS(EXPECT, expect, expect)
3255case " $configdirs " in
3256 *" expect "*)
3257 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3258 ;;
3259esac
3260
3261AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3262case " $configdirs " in
3263 *" dejagnu "*)
8d365775 3264 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
f5aebe3e 3265 ;;
3266esac
3267
3268
71ab34df 3269# Host tools.
768691b5 3270NCN_STRICT_CHECK_TOOLS(AR, ar)
3271NCN_STRICT_CHECK_TOOLS(AS, as)
3272NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3273NCN_STRICT_CHECK_TOOLS(LD, ld)
f5aebe3e 3274NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
768691b5 3275NCN_STRICT_CHECK_TOOLS(NM, nm)
68645a6b 3276NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3277NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
768691b5 3278NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
75d6a0a9 3279NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
768691b5 3280NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3281NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3f71364d 3282NCN_STRICT_CHECK_TOOLS(READELF, readelf)
71ab34df 3283AC_SUBST(CC)
3284AC_SUBST(CXX)
3285AC_SUBST(CFLAGS)
3286AC_SUBST(CXXFLAGS)
71ab34df 3287
f5aebe3e 3288# Target tools.
c47832b1 3289AC_ARG_WITH([build-time-tools],
8747a938 3290 [AS_HELP_STRING([--with-build-time-tools=PATH],
3291 [use given path to find target tools during the build])],
c47832b1 3292 [case x"$withval" in
3293 x/*) ;;
3294 *)
3295 with_build_time_tools=
3296 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3297 ;;
3298 esac],
3299 [with_build_time_tools=])
3300
768691b5 3301NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3302NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
768691b5 3303NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
768691b5 3304NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
5ff5b630 3305NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
c47832b1 3306
3307ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3308ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3309ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3310ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3311ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3312ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
fc740d70 3313ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
c47832b1 3314ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
68645a6b 3315ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3f71364d 3316ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
c47832b1 3317ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3318ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
75d6a0a9 3319ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
ef8184c7 3320
f5aebe3e 3321RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3322
3323GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3324GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3325GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
fb093ce7 3326dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
f5aebe3e 3327GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
b710ec85 3328 [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],
f5aebe3e 3329 c++)
3330GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
b710ec85 3331 [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],
f5aebe3e 3332 c++)
3333GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3334GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
f5aebe3e 3335GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3336 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
5ff5b630 3337GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3338 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
f5aebe3e 3339GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3340GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3341GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
9b31ae9c 3342GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
f5aebe3e 3343GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3344GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3f71364d 3345GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
2b7a4d59 3346GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
f5aebe3e 3347GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
75d6a0a9 3348GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
ef8184c7 3349
f5aebe3e 3350AC_SUBST(FLAGS_FOR_TARGET)
ef8184c7 3351AC_SUBST(RAW_CXX_FOR_TARGET)
49aae208 3352
71ab34df 3353# Certain tools may need extra flags.
3354AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3355RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3356NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
28e9041c 3357
f5aebe3e 3358# When building target libraries, except in a Canadian cross, we use
3359# the same toolchain as the compiler we just built.
3360COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3361COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3362COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3363if test $host = $build; then
3364 case " $configdirs " in
3365 *" gcc "*)
3366 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3367 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3368 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3369 ;;
3370 esac
3371fi
3372
3373AC_SUBST(COMPILER_AS_FOR_TARGET)
3374AC_SUBST(COMPILER_LD_FOR_TARGET)
3375AC_SUBST(COMPILER_NM_FOR_TARGET)
3376
3290c0cf 3377AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3378AC_ARG_ENABLE(maintainer-mode,
8747a938 3379[AS_HELP_STRING([--enable-maintainer-mode],
3380 [enable make rules and dependencies not useful
3381 (and sometimes confusing) to the casual installer])],
3290c0cf 3382 USE_MAINTAINER_MODE=$enableval,
3383 USE_MAINTAINER_MODE=no)
3384AC_MSG_RESULT($USE_MAINTAINER_MODE)
3385AC_SUBST(MAINTAINER_MODE_TRUE)
3386AC_SUBST(MAINTAINER_MODE_FALSE)
3387if test "$USE_MAINTAINER_MODE" = yes; then
3388 MAINTAINER_MODE_TRUE=
3389 MAINTAINER_MODE_FALSE='#'
3390else
3391 MAINTAINER_MODE_TRUE='#'
3392 MAINTAINER_MODE_FALSE=
3393fi
3394MAINT=$MAINTAINER_MODE_TRUE
3395AC_SUBST(MAINT)dnl
3396
2d64c2fd 3397# ---------------------
3398# GCC bootstrap support
3399# ---------------------
3400
3401# Stage specific cflags for build.
3402stage1_cflags="-g"
3403case $build in
3404 vax-*-*)
3405 case ${GCC} in
3406 yes) stage1_cflags="-g -Wa,-J" ;;
3407 *) stage1_cflags="-g -J" ;;
3408 esac ;;
2d64c2fd 3409esac
f508ba97 3410
2d64c2fd 3411AC_SUBST(stage1_cflags)
3412
39f34cfc 3413# Enable --enable-checking in stage1 of the compiler.
3414AC_ARG_ENABLE(stage1-checking,
8747a938 3415[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3416 [choose additional checking for stage1 of the compiler])],
39f34cfc 3417[stage1_checking=--enable-checking=${enable_stage1_checking}],
f6be6a96 3418[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
868af6b6 3419 # For --disable-checking or implicit --enable-checking=release, avoid
3420 # setting --enable-checking=gc in the default stage1 checking for LTO
3421 # bootstraps. See PR62077.
868af6b6 3422 case $BUILD_CONFIG in
3423 *lto*)
c05979a1 3424 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3425 *)
3426 stage1_checking=--enable-checking=yes,types;;
868af6b6 3427 esac
c05979a1 3428 if test "x$enable_checking" = x && \
3429 test -d ${srcdir}/gcc && \
3430 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
bee4f5e5 3431 stage1_checking=--enable-checking=yes,types,extra
c05979a1 3432 fi
39f34cfc 3433else
f6be6a96 3434 stage1_checking=--enable-checking=$enable_checking,types
39f34cfc 3435fi])
3436AC_SUBST(stage1_checking)
3437
2d64c2fd 3438# Enable -Werror in bootstrap stage2 and later.
2d64c2fd 3439AC_ARG_ENABLE(werror,
8747a938 3440[AS_HELP_STRING([--enable-werror],
3441 [enable -Werror in bootstrap stage2 and later])], [],
dd979235 3442[if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
dc914c6d 3443 enable_werror=yes
3444else
3445 enable_werror=no
3446fi])
c0c5068d 3447case ${enable_werror} in
3448 yes) stage2_werror_flag="--enable-werror-always" ;;
3449 *) stage2_werror_flag="" ;;
2d64c2fd 3450esac
c0c5068d 3451AC_SUBST(stage2_werror_flag)
2d64c2fd 3452
2bd17377 3453# Enable --enable-host-shared.
3454AC_ARG_ENABLE(host-shared,
3455[AS_HELP_STRING([--enable-host-shared],
3456 [build host code as shared libraries])],
3457[host_shared=$enableval], [host_shared=no])
3458AC_SUBST(host_shared)
3459
5c524c74 3460# PR jit/64780: Require the user to explicitly specify
3461# --enable-host-shared if the jit is enabled, hinting
3462# that they might want to do a separate configure/build of
3463# the jit, to avoid users from slowing down the rest of the
3464# compiler by enabling the jit.
3465if test ${host_shared} = "no" ; then
3466 case "${enable_languages}" in
3467 *jit*)
3468 AC_MSG_ERROR([
3469Enabling language "jit" requires --enable-host-shared.
3470
3471--enable-host-shared typically slows the rest of the compiler down by
3472a few %, so you must explicitly enable it.
3473
3474If you want to build both the jit and the regular compiler, it is often
3475best to do this via two separate configure/builds, in separate
3476directories, to avoid imposing the performance cost of
3477--enable-host-shared on the regular compiler.])
3478 ;;
3479 *)
3480 ;;
3481 esac
3482fi
3483
6fe86052 3484# Specify what files to not compare during bootstrap.
3485
3486compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3487case "$target" in
3488 hppa*64*-*-hpux*) ;;
3489 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
286256c7 3490 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
6fe86052 3491esac
3492AC_SUBST(compare_exclusions)
3493
8bb79148 3494AC_CONFIG_FILES([Makefile],
3495 [sed "$extrasub_build" Makefile |
3496 sed "$extrasub_host" |
3497 sed "$extrasub_target" > mf$$
3498 mv -f mf$$ Makefile],
3499 [extrasub_build="$extrasub_build"
3500 extrasub_host="$extrasub_host"
3501 extrasub_target="$extrasub_target"])
3502AC_OUTPUT
Mirror of https://gcc.gnu.org/git/gcc.git