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Emit a no longer supported warning for gcoff* options.
[thirdparty/gcc.git] / configure.ac
CommitLineData
beeaf216 1# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
ec8fd1c0 2# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
9e530bcd 3# 2014, 2015, 2016 Free Software Foundation, Inc.
6599da04
JM		 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
309c24a9 7# the Free Software Foundation; either version 3 of the License, or
6599da04
JM		 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
309c24a9
JJ		 16# along with this program; see the file COPYING3. If not see
17# <http://www.gnu.org/licenses/>.
6599da04
JM		 18
19##############################################################################
671aa708
NN		 20### WARNING: this file contains embedded tabs. Do not run untabify on this file.
21
7142fb32
PB		 22m4_include(config/acx.m4)
23m4_include(config/override.m4)
38d24731 24m4_include(config/proginstall.m4)
7413962d 25m4_include(config/elf.m4)
592c90ff
KG		 26m4_include([libtool.m4])
27m4_include([ltoptions.m4])
28m4_include([ltsugar.m4])
29m4_include([ltversion.m4])
30m4_include([lt~obsolete.m4])
33ad93b9 31m4_include([config/isl.m4])
ad6717df 32
671aa708 33AC_INIT(move-if-change)
df58e648 34AC_PREREQ(2.64)
0115d4a3 35AC_DISABLE_OPTION_CHECKING
1c710c3c 36
ad33ff57
RW		 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
1c710c3c
DJ		 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
671aa708
NN		 79AC_CANONICAL_SYSTEM
80AC_ARG_PROGRAM
81
1c710c3c 82m4_pattern_allow([^AS_FOR_TARGET$])dnl
0999159b 83m4_pattern_allow([^AS_FOR_BUILD$])dnl
1c710c3c 84
775956d0
NN		 85# Get 'install' or 'install-sh' and its variants.
86AC_PROG_INSTALL
ad6717df 87ACX_PROG_LN
148907ea 88AC_PROG_LN_S
87264276
PB		 89AC_PROG_SED
90AC_PROG_AWK
775956d0 91
fc45f3fe
DJ		 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
671aa708
NN		 100# Set srcdir to "." if that's what it is.
101# This is important for multilib support.
102pwd=`${PWDCMD-pwd}`
671aa708
NN		 103if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105fi
106
107topsrcdir=$srcpwd
6599da04 108
4977bab6 109extra_host_args=
afabd8e6 110
6599da04
JM		 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
4977bab6
ZW		 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.
6599da04 121
4977bab6
ZW		 122# Double entries in build_configdirs, configdirs, or target_configdirs may
123# cause circular dependencies and break everything horribly.
6599da04 124
23f6b2f9
PB		 125# these library is used by various programs built for the build
126# environment
127#
929315a9 128build_libs="build-libiberty build-libcpp"
23f6b2f9
PB		 129
130# these tools are built for the build environment
85bfb75e 131build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
23f6b2f9 132
6599da04 133# these libraries are used by various programs built for the host environment
eae1a5d4 134#f
4a9bb2aa 135host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv"
6599da04 136
6599da04
JM		 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.
4977bab6
ZW		 140# binutils, gas and ld appear in that order because it makes sense to run
141# "make check" in that particular order.
38e3d868 142# If --enable-gold is used, "gold" may replace "ld".
bf1de3f0 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"
5d4a5ee6 144
6599da04
JM		 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)
8499116a 147# Note that libiberty is not a target library.
291f172e 148target_libraries="target-libgcc \
eff02e4f 149 target-libbacktrace \
5d4a5ee6
JL		 150 target-libgloss \
151 target-newlib \
6d3b5aea 152 target-libgomp \
3038054c 153 target-libcilkrts \
5f520819 154 target-liboffloadmic \
5fd1486c 155 target-libhsail-rt \
48310492 156 target-libatomic \
0a35513e 157 target-libitm \
cb543528 158 target-libstdc++-v3 \
f35db108 159 target-libsanitizer \
2077db1b 160 target-libvtv \
5373cd33 161 target-libmpx \
77008252 162 target-libssp \
1ec601bf 163 target-libquadmath \
6de9cd9a 164 target-libgfortran \
012447ea 165 target-libffi \
d9cdb878 166 target-libobjc \
632e2a07
ILT		 167 target-libada \
168 target-libgo"
6599da04 169
4dbda6f0
NN		 170# these tools are built using the target libraries, and are intended to
171# run only in the target environment
6599da04 172#
4dbda6f0 173# note: any program that *uses* libraries that are in the "target_libraries"
1bcce263 174# list belongs in this list.
6599da04 175#
85bfb75e 176target_tools="target-rda"
6599da04
JM		 177
178################################################################################
179
6599da04
JM		 180## All tools belong in one of the four categories, and are assigned above
181## We assign ${configdirs} this way to remove all embedded newlines. This
182## is important because configure will choke if they ever get through.
183## ${configdirs} is directories we build using the host tools.
184## ${target_configdirs} is directories we build using the target tools.
6599da04 185configdirs=`echo ${host_libs} ${host_tools}`
4dbda6f0 186target_configdirs=`echo ${target_libraries} ${target_tools}`
71b5d516 187build_configdirs=`echo ${build_libs} ${build_tools}`
8b87bb96 188
ac9e6043 189m4_divert_text([PARSE_ARGS],
87841584
AM		 190[case $srcdir in
191 *" "*)
192m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
193 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
194m4_popdef([AS_MESSAGE_LOG_FD])dnl
195 ;;
196esac
197ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
ac9e6043
RW		 198])
199
6599da04
JM		 200################################################################################
201
6599da04
JM		 202srcname="gnu development package"
203
204# This gets set non-empty for some net releases of packages.
205appdirs=""
206
e1848dde
NN		 207# Define is_cross_compiler to save on calls to 'test'.
208is_cross_compiler=
209if test x"${host}" = x"${target}" ; then
210 is_cross_compiler=no
211else
212 is_cross_compiler=yes
213fi
214
b4acb5ef 215# Find the build and target subdir names.
8b87bb96 216GCC_TOPLEV_SUBDIRS
0db770bd
RW		 217# Be sure to cover against remnants of an in-tree build.
218if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
219 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
220Use a pristine source tree when building in a separate tree])
221fi
f653f0ab 222
55380b08
NN		 223# Skipdirs are removed silently.
224skipdirs=
225# Noconfigdirs are removed loudly.
226noconfigdirs=""
6599da04 227
55380b08
NN		 228use_gnu_ld=
229# Make sure we don't let GNU ld be added if we didn't want it.
230if test x$with_gnu_ld = xno ; then
231 use_gnu_ld=no
5afab7ad 232 noconfigdirs="$noconfigdirs ld gold"
6599da04
JM		 233fi
234
55380b08
NN		 235use_gnu_as=
236# Make sure we don't let GNU as be added if we didn't want it.
237if test x$with_gnu_as = xno ; then
238 use_gnu_as=no
239 noconfigdirs="$noconfigdirs gas"
6599da04
JM		 240fi
241
d7f09764 242use_included_zlib=
a05c2c75
L		 243AC_ARG_WITH(system-zlib,
244[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
d7f09764
DN		 245# Make sure we don't let ZLIB be added if we didn't want it.
246if test x$with_system_zlib = xyes ; then
247 use_included_zlib=no
248 noconfigdirs="$noconfigdirs zlib"
249fi
250
55380b08
NN		 251# some tools are so dependent upon X11 that if we're not building with X,
252# it's not even worth trying to configure, much less build, that tool.
6599da04 253
55380b08
NN		 254case ${with_x} in
255 yes | "") ;; # the default value for this tree is that X11 is available
423ce3eb 256 no)
b4f96efe 257 skipdirs="${skipdirs} tk itcl libgui"
423ce3eb
NN		 258 # We won't be able to build gdbtk without X.
259 enable_gdbtk=no
260 ;;
55380b08
NN		 261 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
262esac
6599da04 263
1bcce263 264# Some are only suitable for cross toolchains.
95ddd785
NN		 265# Remove these if host=target.
266cross_only="target-libgloss target-newlib target-opcodes"
6599da04 267
55380b08
NN		 268case $is_cross_compiler in
269 no) skipdirs="${skipdirs} ${cross_only}" ;;
55380b08 270esac
6599da04 271
0c639b89
DD		 272# If both --with-headers and --with-libs are specified, default to
273# --without-newlib.
9082a750
MR		 274if test x"${with_headers}" != x && test x"${with_headers}" != xno \
275 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
0c639b89
DD		 276 if test x"${with_newlib}" = x ; then
277 with_newlib=no
278 fi
279fi
280
281# Recognize --with-newlib/--without-newlib.
282case ${with_newlib} in
283 no) skipdirs="${skipdirs} target-newlib" ;;
284 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
285esac
286
85c64bbe
BS		 287AC_ARG_ENABLE(as-accelerator-for,
288[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
289 [build as offload target compiler.
4b4f2e35 290 Specify offload host triple by ARG])])
85c64bbe
BS		 291
292AC_ARG_ENABLE(offload-targets,
293[AS_HELP_STRING([--enable-offload-targets=LIST],
294 [enable offloading to devices from comma-separated LIST of
295 TARGET[=DIR]. Use optional path to find offload target compiler
296 during the build])],
297[
298 if test x"$enable_offload_targets" = x; then
299 AC_MSG_ERROR([no offload targets specified])
300 fi
301], [enable_offload_targets=])
302
21539e2e
MK		 303# Handle --enable-gold, --enable-ld.
304# --disable-gold [--enable-ld]
305# Build only ld. Default option.
9580395f
L		 306# --enable-gold [--enable-ld]
307# Build both gold and ld. Install gold as "ld.gold", install ld
308# as "ld.bfd" and "ld".
309# --enable-gold=default [--enable-ld]
21539e2e
MK		 310# Build both gold and ld. Install gold as "ld.gold" and "ld",
311# install ld as "ld.bfd".
312# --enable-gold[=default] --disable-ld
313# Build only gold, which is then installed as both "ld.gold" and "ld".
314# --enable-gold --enable-ld=default
9580395f
L		 315# Build both gold (installed as "ld.gold") and ld (installed as "ld"
316# and ld.bfd).
21539e2e
MK		 317# In other words, ld is default
318# --enable-gold=default --enable-ld=default
319# Error.
320
321default_ld=
5afab7ad 322AC_ARG_ENABLE(gold,
33e39b66
AS		 323[AS_HELP_STRING([[--enable-gold[=ARG]]],
324 [build gold @<:@ARG={default,yes,no}@:>@])],
5afab7ad
ILT		 325ENABLE_GOLD=$enableval,
326ENABLE_GOLD=no)
21539e2e
MK		 327case "${ENABLE_GOLD}" in
328 yes|default)
38e3d868
RM		 329 # Check for ELF target.
330 is_elf=no
331 case "${target}" in
332 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
0e76460f 333 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
8c6d158a 334 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
ff4b7a7e 335 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
38e3d868
RM		 336 case "${target}" in
337 *-*-linux*aout* | *-*-linux*oldld*)
338 ;;
339 *)
340 is_elf=yes
341 ;;
342 esac
343 esac
344
345 if test "$is_elf" = "yes"; then
346 # Check for target supported by gold.
5afab7ad 347 case "${target}" in
7705dfd1 348 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
1b858e76 349 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
21539e2e
MK		 350 configdirs="$configdirs gold"
351 if test x${ENABLE_GOLD} = xdefault; then
352 default_ld=gold
353 fi
38e3d868 354 ENABLE_GOLD=yes
5afab7ad
ILT		 355 ;;
356 esac
38e3d868
RM		 357 fi
358 ;;
359 no)
360 ;;
361 *)
362 AC_MSG_ERROR([invalid --enable-gold argument])
363 ;;
21539e2e
MK		 364esac
365
366AC_ARG_ENABLE(ld,
33e39b66
AS		 367[AS_HELP_STRING([[--enable-ld[=ARG]]],
368 [build ld @<:@ARG={default,yes,no}@:>@])],
21539e2e
MK		 369ENABLE_LD=$enableval,
370ENABLE_LD=yes)
371
372case "${ENABLE_LD}" in
373 default)
9580395f 374 if test x${default_ld} != x; then
21539e2e
MK		 375 AC_MSG_ERROR([either gold or ld can be the default ld])
376 fi
377 ;;
378 yes)
379 ;;
380 no)
381 if test x${ENABLE_GOLD} != xyes; then
382 AC_MSG_WARN([neither ld nor gold are enabled])
383 fi
384 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
385 ;;
386 *)
387 AC_MSG_ERROR([invalid --enable-ld argument])
388 ;;
389esac
5afab7ad 390
78edb32f
L		 391# PR gas/19109
392# Decide the default method for compressing debug sections.
393# Provide a configure time option to override our default.
394AC_ARG_ENABLE(compressed_debug_sections,
324402a0 395[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
78edb32f
L		 396 [Enable compressed debug sections for gas, gold or ld by
397 default])],
398[
399 if test x"$enable_compressed_debug_sections" = xyes; then
400 AC_MSG_ERROR([no program with compressed debug sections specified])
401 fi
402], [enable_compressed_debug_sections=])
403
6599da04
JM		 404# Configure extra directories which are host specific
405
406case "${host}" in
55380b08 407 *-cygwin*)
4977bab6 408 configdirs="$configdirs libtermcap" ;;
6599da04
JM		 409esac
410
4fab7234
HPN		 411# A target can indicate whether a language isn't supported for some reason.
412# Only spaces may be used in this macro; not newlines or tabs.
413unsupported_languages=
414
6599da04
JM		 415# Remove more programs from consideration, based on the host or
416# target this usually means that a port of the program doesn't
417# exist yet.
418
6599da04 419case "${host}" in
111eeb6e 420 i[[3456789]]86-*-msdosdjgpp*)
c9bdb152 421 noconfigdirs="$noconfigdirs tcl tk itcl"
5d4a5ee6 422 ;;
6599da04
JM		 423esac
424
6de9cd9a 425
87e6d9dc
TB		 426AC_ARG_ENABLE(libquadmath,
427AS_HELP_STRING([--disable-libquadmath],
428 [do not build libquadmath directory]),
429ENABLE_LIBQUADMATH=$enableval,
430ENABLE_LIBQUADMATH=yes)
431if test "${ENABLE_LIBQUADMATH}" = "no" ; then
432 noconfigdirs="$noconfigdirs target-libquadmath"
433fi
434
435
436AC_ARG_ENABLE(libquadmath-support,
437AS_HELP_STRING([--disable-libquadmath-support],
438 [disable libquadmath support for Fortran]),
439ENABLE_LIBQUADMATH_SUPPORT=$enableval,
440ENABLE_LIBQUADMATH_SUPPORT=yes)
441enable_libquadmath_support=
442if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
443 enable_libquadmath_support=no
444fi
445
446
d9cdb878 447AC_ARG_ENABLE(libada,
33e39b66 448[AS_HELP_STRING([--enable-libada], [build libada directory])],
d9cdb878
AC		 449ENABLE_LIBADA=$enableval,
450ENABLE_LIBADA=yes)
451if test "${ENABLE_LIBADA}" != "yes" ; then
5395b47b 452 noconfigdirs="$noconfigdirs gnattools"
d9cdb878
AC		 453fi
454
ef0087a7 455AC_ARG_ENABLE(libssp,
33e39b66 456[AS_HELP_STRING([--enable-libssp], [build libssp directory])],
ef0087a7
KH		 457ENABLE_LIBSSP=$enableval,
458ENABLE_LIBSSP=yes)
ef0087a7 459
2588b26e
RM		 460AC_ARG_ENABLE(libstdcxx,
461AS_HELP_STRING([--disable-libstdcxx],
462 [do not build libstdc++-v3 directory]),
463ENABLE_LIBSTDCXX=$enableval,
464ENABLE_LIBSTDCXX=default)
465[if test "${ENABLE_LIBSTDCXX}" = "no" ; then
1007a55c 466 noconfigdirs="$noconfigdirs target-libstdc++-v3"
2588b26e
RM		 467fi]
468
5f520819
KY		 469# If this is accelerator compiler and its target is intelmic we enable
470# target liboffloadmic by default. If this is compiler with offloading
471# for intelmic we enable host liboffloadmic by default. Otherwise
472# liboffloadmic is disabled by default.
473AC_ARG_ENABLE([liboffloadmic],
474AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
475 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
476[case "$enableval" in
477 no | host | target)
478 enable_liboffloadmic=$enableval ;;
479 *)
480 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
481esac],
4b4f2e35 482[if test x"$enable_as_accelerator_for" != x; then
5f520819
KY		 483 case "${target}" in
484 *-intelmic-* | *-intelmicemul-*)
485 enable_liboffloadmic=target
486 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
487 ;;
488 *)
489 enable_liboffloadmic=no
490 ;;
491 esac
492else
493 case "${enable_offload_targets}" in
494 *-intelmic-* | *-intelmicemul-*)
495 enable_liboffloadmic=host
496 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
497 ;;
498 *)
499 enable_liboffloadmic=no
500 ;;
501 esac
502fi])
503AC_SUBST(extra_liboffloadmic_configure_flags)
504
44a7d18d 505# Enable libgomp by default on hosted POSIX systems, and a few others.
27079765 506if test x$enable_libgomp = x ; then
953ff289 507 case "${target}" in
416ac4d4 508 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
953ff289 509 ;;
8c6d158a 510 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
953ff289 511 ;;
b24513a1 512 *-*-solaris2* | *-*-hpux11*)
953ff289 513 ;;
cac90078 514 *-*-darwin* | *-*-aix*)
953ff289 515 ;;
44a7d18d
TS		 516 nvptx*-*-*)
517 ;;
953ff289
DN		 518 *)
519 noconfigdirs="$noconfigdirs target-libgomp"
520 ;;
521 esac
27079765 522fi
953ff289 523
48310492
RH		 524# Disable libatomic on unsupported systems.
525if test -d ${srcdir}/libatomic; then
526 if test x$enable_libatomic = x; then
527 AC_MSG_CHECKING([for libatomic support])
528 if (srcdir=${srcdir}/libatomic; \
529 . ${srcdir}/configure.tgt; \
530 test -n "$UNSUPPORTED")
531 then
532 AC_MSG_RESULT([no])
533 noconfigdirs="$noconfigdirs target-libatomic"
534 else
535 AC_MSG_RESULT([yes])
536 fi
537 fi
538fi
539
3038054c
BI		 540# Disable libcilkrts on unsupported systems.
541if test -d ${srcdir}/libcilkrts; then
542 if test x$enable_libcilkrts = x; then
543 AC_MSG_CHECKING([for libcilkrts support])
544 if (srcdir=${srcdir}/libcilkrts; \
545 . ${srcdir}/configure.tgt; \
546 test -n "$UNSUPPORTED")
547 then
548 AC_MSG_RESULT([no])
549 noconfigdirs="$noconfigdirs target-libcilkrts"
550 else
551 AC_MSG_RESULT([yes])
552 fi
553 fi
554fi
555
5f520819
KY		 556# Disable liboffloadmic on unsupported systems.
557if test -d ${srcdir}/liboffloadmic; then
558 if test x$enable_liboffloadmic != xno; then
559 AC_MSG_CHECKING([for liboffloadmic support])
560 if (srcdir=${srcdir}/liboffloadmic; \
561 . ${srcdir}/configure.tgt; \
562 test -n "$UNSUPPORTED")
563 then
564 AC_MSG_RESULT([no])
565 noconfigdirs="$noconfigdirs target-liboffloadmic"
566 else
567 AC_MSG_RESULT([yes])
568 fi
569 fi
570fi
571
e948157d
RH		 572# Disable libitm on unsupported systems.
573if test -d ${srcdir}/libitm; then
574 if test x$enable_libitm = x; then
575 AC_MSG_CHECKING([for libitm support])
576 if (srcdir=${srcdir}/libitm; \
577 . ${srcdir}/configure.tgt; \
578 test -n "$UNSUPPORTED")
579 then
580 AC_MSG_RESULT([no])
581 noconfigdirs="$noconfigdirs target-libitm"
582 else
583 AC_MSG_RESULT([yes])
584 fi
585 fi
0a35513e
AH		 586fi
587
93bf5390
RH		 588# Disable libsanitizer on unsupported systems.
589if test -d ${srcdir}/libsanitizer; then
590 if test x$enable_libsanitizer = x; then
591 AC_MSG_CHECKING([for libsanitizer support])
592 if (srcdir=${srcdir}/libsanitizer; \
593 . ${srcdir}/configure.tgt; \
594 test -n "$UNSUPPORTED")
595 then
596 AC_MSG_RESULT([no])
597 noconfigdirs="$noconfigdirs target-libsanitizer"
598 else
599 AC_MSG_RESULT([yes])
600 fi
601 fi
602fi
603
2077db1b
CT		 604# Disable libvtv on unsupported systems.
605if test -d ${srcdir}/libvtv; then
606 if test x$enable_libvtv = x; then
607 AC_MSG_CHECKING([for libvtv support])
608 if (srcdir=${srcdir}/libvtv; \
609 . ${srcdir}/configure.tgt; \
1e74b850 610 test "$VTV_SUPPORTED" != "yes")
2077db1b
CT		 611 then
612 AC_MSG_RESULT([no])
613 noconfigdirs="$noconfigdirs target-libvtv"
614 else
615 AC_MSG_RESULT([yes])
616 fi
617 fi
618fi
619
5373cd33
IE		 620
621# Enable libmpx on supported systems by request.
622if test -d ${srcdir}/libmpx; then
54985c70 623 if test x$enable_libmpx = x; then
5373cd33
IE		 624 AC_MSG_CHECKING([for libmpx support])
625 if (srcdir=${srcdir}/libmpx; \
626 . ${srcdir}/configure.tgt; \
627 test "$LIBMPX_SUPPORTED" != "yes")
628 then
629 AC_MSG_RESULT([no])
630 noconfigdirs="$noconfigdirs target-libmpx"
631 else
632 AC_MSG_RESULT([yes])
633 fi
5373cd33
IE		 634 fi
635fi
636
f6a24a94
MJ		 637# Disable libhsail-rt on unsupported systems.
638if test -d ${srcdir}/libhsail-rt; then
639 if test x$enable_libhsail_rt = x; then
640 AC_MSG_CHECKING([for libhsail-rt support])
641 if (srcdir=${srcdir}/libhsail-rt; \
642 . ${srcdir}/configure.tgt; \
643 test -n "$UNSUPPORTED")
644 then
645 AC_MSG_RESULT([no])
646 unsupported_languages="$unsupported_languages brig"
647 # This implicitly disables also target-libhsail-rt as it won't
648 # get added to the build without BRIG FE.
649 else
650 AC_MSG_RESULT([yes])
651 fi
652 fi
653fi
5373cd33
IE		 654
655
d7a29167
DE		 656# Disable libquadmath for some systems.
657case "${target}" in
e7fae550
DE		 658 avr-*-*)
659 noconfigdirs="$noconfigdirs target-libquadmath"
660 ;;
d7a29167
DE		 661 # libquadmath is unused on AIX and libquadmath build process use of
662 # LD_LIBRARY_PATH can break AIX bootstrap.
663 powerpc-*-aix* | rs6000-*-aix*)
664 noconfigdirs="$noconfigdirs target-libquadmath"
665 ;;
666esac
667
1e9e0e23
JM		 668# Disable libssp for some systems.
669case "${target}" in
670 avr-*-*)
b318fb4b 671 # No hosted I/O support.
1e9e0e23
JM		 672 noconfigdirs="$noconfigdirs target-libssp"
673 ;;
674 powerpc-*-aix* | rs6000-*-aix*)
675 noconfigdirs="$noconfigdirs target-libssp"
676 ;;
85b8555e
DD		 677 rl78-*-*)
678 # libssp uses a misaligned load to trigger a fault, but the RL78
679 # doesn't fault for those - instead, it gives a build-time error
680 # for explicit misaligned loads.
681 noconfigdirs="$noconfigdirs target-libssp"
682 ;;
0969ec7d
EB		 683 visium-*-*)
684 # No hosted I/O support.
685 noconfigdirs="$noconfigdirs target-libssp"
686 ;;
1e9e0e23
JM		 687esac
688
1e9e0e23 689# Disable libstdc++-v3 for some systems.
2588b26e
RM		 690# Allow user to override this if they pass --enable-libstdc++-v3
691if test "${ENABLE_LIBSTDCXX}" = "default" ; then
692 case "${target}" in
693 *-*-vxworks*)
694 # VxWorks uses the Dinkumware C++ library.
695 noconfigdirs="$noconfigdirs target-libstdc++-v3"
696 ;;
697 arm*-wince-pe*)
698 # the C++ libraries don't build on top of CE's C libraries
699 noconfigdirs="$noconfigdirs target-libstdc++-v3"
700 ;;
701 avr-*-*)
702 noconfigdirs="$noconfigdirs target-libstdc++-v3"
703 ;;
fef939d6
JB		 704 ft32-*-*)
705 noconfigdirs="$noconfigdirs target-libstdc++-v3"
706 ;;
2588b26e
RM		 707 esac
708fi
1e9e0e23
JM		 709
710# Disable Fortran for some systems.
711case "${target}" in
712 mmix-*-*)
713 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
714 unsupported_languages="$unsupported_languages fortran"
715 ;;
716esac
717
012447ea
JJ		 718# Disable libffi for some systems.
719case "${target}" in
720 powerpc-*-darwin*)
721 ;;
722 i[[3456789]]86-*-darwin*)
723 ;;
724 x86_64-*-darwin[[912]]*)
725 ;;
726 *-*-darwin*)
727 noconfigdirs="$noconfigdirs target-libffi"
728 ;;
729 *-*-netware*)
730 noconfigdirs="$noconfigdirs target-libffi"
731 ;;
732 *-*-phoenix*)
733 noconfigdirs="$noconfigdirs target-libffi"
734 ;;
735 *-*-rtems*)
736 noconfigdirs="$noconfigdirs target-libffi"
737 ;;
738 *-*-tpf*)
739 noconfigdirs="$noconfigdirs target-libffi"
740 ;;
741 *-*-uclinux*)
742 noconfigdirs="$noconfigdirs target-libffi"
743 ;;
744 *-*-vxworks*)
745 noconfigdirs="$noconfigdirs target-libffi"
746 ;;
b20e7532
AT		 747 aarch64*-*-freebsd*)
748 noconfigdirs="$noconfigdirs target-libffi"
749 ;;
012447ea
JJ		 750 alpha*-*-*vms*)
751 noconfigdirs="$noconfigdirs target-libffi"
752 ;;
753 arm*-*-freebsd*)
754 noconfigdirs="$noconfigdirs target-libffi"
755 ;;
756 arm-wince-pe)
757 noconfigdirs="$noconfigdirs target-libffi"
758 ;;
759 arm*-*-symbianelf*)
760 noconfigdirs="$noconfigdirs target-libffi"
761 ;;
762 cris-*-* | crisv32-*-*)
763 case "${target}" in
764 *-*-linux*)
765 ;;
766 *) # See PR46792 regarding target-libffi.
767 noconfigdirs="$noconfigdirs target-libffi";;
768 esac
769 ;;
770 hppa*64*-*-hpux*)
771 noconfigdirs="$noconfigdirs target-libffi"
772 ;;
773 hppa*-hp-hpux11*)
774 ;;
775 hppa*-*-hpux*)
776 noconfigdirs="$noconfigdirs target-libffi"
777 ;;
778 ia64*-*-*vms*)
779 noconfigdirs="$noconfigdirs target-libffi"
780 ;;
781 i[[3456789]]86-w64-mingw*)
782 noconfigdirs="$noconfigdirs target-libffi"
783 ;;
784 i[[3456789]]86-*-mingw*)
785 noconfigdirs="$noconfigdirs target-libffi"
786 ;;
787 x86_64-*-mingw*)
788 noconfigdirs="$noconfigdirs target-libffi"
789 ;;
790 mmix-*-*)
791 noconfigdirs="$noconfigdirs target-libffi"
792 ;;
793 powerpc-*-aix*)
012447ea
JJ		 794 ;;
795 rs6000-*-aix*)
012447ea
JJ		 796 ;;
797 ft32-*-*)
798 noconfigdirs="$noconfigdirs target-libffi"
799 ;;
800 *-*-lynxos*)
801 noconfigdirs="$noconfigdirs target-libffi"
802 ;;
803esac
804
805# Disable the go frontend on systems where it is known to not work. Please keep
806# this in sync with contrib/config-list.mk.
807case "${target}" in
5a427c63 808*-*-darwin* | *-*-cygwin* | *-*-mingw*)
012447ea
JJ		 809 unsupported_languages="$unsupported_languages go"
810 ;;
811esac
812
cdbc9e92
ILT		 813# Disable libgo for some systems where it is known to not work.
814# For testing, you can easily override this with --enable-libgo.
815if test x$enable_libgo = x; then
816 case "${target}" in
817 *-*-darwin*)
818 # PR 46986
819 noconfigdirs="$noconfigdirs target-libgo"
820 ;;
821 *-*-cygwin* | *-*-mingw*)
822 noconfigdirs="$noconfigdirs target-libgo"
823 ;;
cdbc9e92
ILT		 824 esac
825fi
826
c03353e2
RIL		 827# Default libgloss CPU subdirectory.
828libgloss_dir="$target_cpu"
6de9cd9a 829
fbcf0dca
JM		 830case "${target}" in
831 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
832 libgloss_dir=wince
833 ;;
4dddfc74
YZ		 834 aarch64*-*-* )
835 libgloss_dir=aarch64
836 ;;
fbcf0dca
JM		 837 arm*-*-*)
838 libgloss_dir=arm
839 ;;
840 cris-*-* | crisv32-*-*)
841 libgloss_dir=cris
842 ;;
843 hppa*-*-*)
844 libgloss_dir=pa
845 ;;
846 i[[3456789]]86-*-*)
847 libgloss_dir=i386
848 ;;
849 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
850 libgloss_dir=m68hc11
851 ;;
852 m68*-*-* | fido-*-*)
853 libgloss_dir=m68k
854 ;;
855 mips*-*-*)
856 libgloss_dir=mips
857 ;;
858 powerpc*-*-*)
859 libgloss_dir=rs6000
860 ;;
861 sparc*-*-*)
862 libgloss_dir=sparc
863 ;;
864esac
865
6a789d5e 866# Disable newlib and libgloss for various target OSes.
6599da04 867case "${target}" in
6a789d5e
JM		 868 alpha*-dec-osf*)
869 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
870 ;;
871 i[[3456789]]86-*-linux*)
872 # This section makes it possible to build newlib natively on linux.
873 # If we are using a cross compiler then don't configure newlib.
874 if test x${is_cross_compiler} != xno ; then
875 noconfigdirs="$noconfigdirs target-newlib"
876 fi
877 noconfigdirs="$noconfigdirs target-libgloss"
878 # If we are not using a cross compiler, do configure newlib.
879 # Note however, that newlib will only be configured in this situation
880 # if the --with-newlib option has been given, because otherwise
881 # 'target-newlib' will appear in skipdirs.
882 ;;
883 i[[3456789]]86-*-rdos*)
884 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
885 ;;
886 sh*-*-pe|mips*-*-pe|arm-wince-pe)
887 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
888 ;;
889 sparc-*-sunos4*)
890 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
891 ;;
892 *-*-aix*)
893 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
894 ;;
895 *-*-beos*)
896 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
897 ;;
3fa03ff9 898 *-*-chorusos)
0036370f 899 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
3fa03ff9 900 ;;
6a789d5e
JM		 901 *-*-dragonfly*)
902 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
903 ;;
904 *-*-freebsd*)
905 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
906 ;;
907 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
908 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
909 ;;
910 *-*-lynxos*)
911 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
912 ;;
913 *-*-mingw*)
914 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
915 ;;
916 *-*-netbsd*)
917 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
918 ;;
919 *-*-netware*)
920 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
921 ;;
922 *-*-tpf*)
923 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
924 ;;
925 *-*-uclinux*)
926 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
927 ;;
928 *-*-vxworks*)
929 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
930 ;;
931esac
932
933case "${target}" in
934 *-*-chorusos)
935 ;;
3be96231
TG		 936 aarch64-*-darwin*)
937 noconfigdirs="$noconfigdirs ld gas gdb gprof"
938 noconfigdirs="$noconfigdirs sim target-rda"
939 ;;
940 arm-*-darwin*)
941 noconfigdirs="$noconfigdirs ld gas gdb gprof"
942 noconfigdirs="$noconfigdirs sim target-rda"
943 ;;
75eeae1a 944 powerpc-*-darwin*)
e1514c3f 945 noconfigdirs="$noconfigdirs ld gas gdb gprof"
9c8f9ec2 946 noconfigdirs="$noconfigdirs sim target-rda"
940cde4d 947 ;;
354ebf88
RW		 948 i[[3456789]]86-*-darwin*)
949 noconfigdirs="$noconfigdirs ld gprof"
950 noconfigdirs="$noconfigdirs sim target-rda"
951 ;;
952 x86_64-*-darwin[[912]]*)
0db3a858
TG		 953 noconfigdirs="$noconfigdirs ld gas gprof"
954 noconfigdirs="$noconfigdirs sim target-rda"
955 ;;
42c1cd8a
AT		 956 *-*-darwin*)
957 noconfigdirs="$noconfigdirs ld gas gdb gprof"
958 noconfigdirs="$noconfigdirs sim target-rda"
42c1cd8a 959 ;;
8c6d158a 960 *-*-dragonfly*)
8c6d158a 961 ;;
c3f84f61 962 *-*-freebsd*)
6de9cd9a
DN		 963 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
964 && test -f /usr/local/include/gmp.h; then
965 with_gmp=/usr/local
966 fi
6de9cd9a 967 ;;
ef4e7569
US		 968 *-*-kaos*)
969 # Remove unsupported stuff on all kaOS configurations.
ef4e7569
US		 970 noconfigdirs="$noconfigdirs target-libgloss"
971 ;;
51584787 972 *-*-netbsd*)
51584787 973 ;;
61fec9ff 974 *-*-netware*)
6599da04 975 ;;
fd6487af
JS		 976 *-*-phoenix*)
977 noconfigdirs="$noconfigdirs target-libgloss"
978 ;;
3fbc0b70 979 *-*-rtems*)
2909494b 980 noconfigdirs="$noconfigdirs target-libgloss"
74ae587e
JBG		 981 # this is not caught below because this stanza matches earlier
982 case $target in
983 or1k*-*-*) noconfigdirs="$noconfigdirs gdb" ;;
984 esac
3fbc0b70 985 ;;
a8ba31f2
EC		 986 # The tpf target doesn't support gdb yet.
987 *-*-tpf*)
6a789d5e 988 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
a8ba31f2 989 ;;
5785c0ed 990 *-*-uclinux*)
6a789d5e 991 noconfigdirs="$noconfigdirs target-rda"
5785c0ed 992 ;;
6599da04 993 *-*-vxworks*)
6599da04 994 ;;
b104e095 995 alpha*-dec-osf*)
603606e7 996 # ld works, but does not support shared libraries.
6599da04 997 # gas doesn't generate exception information.
6a789d5e 998 noconfigdirs="$noconfigdirs gas ld"
6599da04
JM		 999 ;;
1000 alpha*-*-*vms*)
2909494b 1001 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
6599da04
JM		 1002 ;;
1003 alpha*-*-*)
1004 # newlib is not 64 bit ready
2909494b 1005 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1006 ;;
3a685f6f 1007 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
b4f96efe 1008 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
3a685f6f 1009 ;;
2fd88f4f
AK		 1010 arc*-*-*)
1011 noconfigdirs="$noconfigdirs sim"
1012 ;;
6599da04 1013 arm-*-pe*)
2909494b 1014 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1015 ;;
5d4a5ee6 1016 arm-*-riscix*)
0036370f 1017 noconfigdirs="$noconfigdirs ld target-libgloss"
5d4a5ee6 1018 ;;
b588ae30
GJL		 1019 avr-*-*)
1020 if test x${with_avrlibc} != xno; then
1021 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1022 fi
1023 ;;
a5a438f5 1024 c4x-*-* | tic4x-*-*)
0036370f 1025 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1026 ;;
0036370f
JM		 1027 tic54x-*-*)
1028 noconfigdirs="$noconfigdirs target-libgloss gdb"
ab50d72b 1029 ;;
6599da04 1030 d10v-*-*)
0036370f 1031 noconfigdirs="$noconfigdirs target-libgloss"
d207ebef
JM		 1032 ;;
1033 d30v-*-*)
0036370f 1034 noconfigdirs="$noconfigdirs gdb"
6599da04 1035 ;;
09b5f8bf 1036 fr30-*-elf*)
2909494b 1037 noconfigdirs="$noconfigdirs gdb"
09b5f8bf 1038 ;;
a05c2c75
L		 1039 ft32-*-*)
1040 noconfigdirs="$noconfigdirs target-rda gprof"
1041 ;;
55f2d967 1042 moxie-*-*)
a05c2c75 1043 noconfigdirs="$noconfigdirs"
55f2d967 1044 ;;
ab50d72b 1045 h8300*-*-*)
2909494b 1046 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1047 ;;
6599da04 1048 h8500-*-*)
0036370f 1049 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1050 ;;
9d069a4f 1051 hppa1.1-*-osf* | hppa1.1-*-bsd* )
9d069a4f 1052 ;;
a05c2c75
L		 1053 hppa*64*-*-hpux*)
1054 noconfigdirs="$noconfigdirs gdb"
1055 ;;
1056 hppa*-*-hpux11*)
1057 noconfigdirs="$noconfigdirs gdb ld"
1058 ;;
4569f85e 1059 hppa*64*-*-linux*)
cdbff0ab 1060 ;;
56f8587a 1061 hppa*-*-linux*)
3e732ba0 1062 ;;
6599da04 1063 hppa*-*-*elf* | \
bae29210 1064 hppa*-*-lites* | \
66350331 1065 hppa*-*-openbsd* | \
bae29210 1066 hppa*64*-*-*)
6599da04 1067 ;;
c03353e2 1068 hppa*-*-pro*)
c03353e2 1069 ;;
6599da04 1070 hppa*-*-*)
2909494b 1071 noconfigdirs="$noconfigdirs ld"
d207ebef 1072 ;;
fb87ad5d 1073 i960-*-*)
0036370f 1074 noconfigdirs="$noconfigdirs gdb"
fb87ad5d 1075 ;;
d207ebef
JM		 1076 ia64*-*-elf*)
1077 # No gdb support yet.
1bcce263 1078 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
d207ebef 1079 ;;
ab50d72b 1080 ia64*-**-hpux*)
5a2931d1 1081 # No ld support yet.
a05c2c75 1082 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
ab50d72b 1083 ;;
52535a64 1084 ia64*-*-*vms*)
091fe9ca
TG		 1085 # No ld support yet.
1086 noconfigdirs="$noconfigdirs libgui itcl ld"
52535a64 1087 ;;
ef4c4300 1088 i[[3456789]]86-w64-mingw*)
ef4c4300
KT		 1089 ;;
1090 i[[3456789]]86-*-mingw*)
b91f0a41 1091 target_configdirs="$target_configdirs target-winsup"
5d571eaa 1092 ;;
d207ebef
JM		 1093 *-*-cygwin*)
1094 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1bcce263 1095 noconfigdirs="$noconfigdirs target-libgloss"
801e2270 1096 # always build newlib if winsup directory is present.
b91f0a41 1097 if test -d "$srcdir/winsup/cygwin"; then
801e2270 1098 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
c8e6cd41 1099 elif test -d "$srcdir/newlib"; then
b91f0a41 1100 echo "Warning: winsup/cygwin is missing so newlib can't be built."
801e2270 1101 fi
5d571eaa 1102 ;;
f2a0e225 1103 i[[3456789]]86-*-pe)
ebb9f8b0 1104 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1105 ;;
f2a0e225 1106 i[[3456789]]86-*-sco3.2v5*)
6599da04
JM		 1107 # The linker does not yet know about weak symbols in COFF,
1108 # and is not configured to handle mixed ELF and COFF.
0036370f 1109 noconfigdirs="$noconfigdirs ld target-libgloss"
6599da04 1110 ;;
f2a0e225 1111 i[[3456789]]86-*-sco*)
0036370f 1112 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1113 ;;
fbdd5d87 1114 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
7c01b2b5 1115 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1116 ;;
f2a0e225 1117 i[[3456789]]86-*-sysv4*)
0036370f 1118 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1119 ;;
f2a0e225 1120 i[[3456789]]86-*-beos*)
6a789d5e 1121 noconfigdirs="$noconfigdirs gdb"
3aa83176 1122 ;;
d1f8db0c 1123 i[[3456789]]86-*-rdos*)
6a789d5e 1124 noconfigdirs="$noconfigdirs gdb"
c03353e2 1125 ;;
d344dce9 1126 mmix-*-*)
2909494b 1127 noconfigdirs="$noconfigdirs gdb"
d344dce9 1128 ;;
ab34901f 1129 mt-*-*)
79dd769c
AH		 1130 noconfigdirs="$noconfigdirs sim"
1131 ;;
6599da04
JM		 1132 powerpc-*-aix*)
1133 # copied from rs6000-*-* entry
6a789d5e 1134 noconfigdirs="$noconfigdirs gprof"
6599da04 1135 ;;
4569f85e 1136 powerpc*-*-winnt* | powerpc*-*-pe*)
6599da04 1137 target_configdirs="$target_configdirs target-winsup"
0036370f 1138 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
6599da04
JM		 1139 # always build newlib.
1140 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1141 ;;
1142 # This is temporary until we can link against shared libraries
1143 powerpcle-*-solaris*)
0036370f 1144 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
6599da04 1145 ;;
0da3b5a7 1146 powerpc-*-beos*)
6a789d5e 1147 noconfigdirs="$noconfigdirs gdb"
d207ebef 1148 ;;
6599da04 1149 rs6000-*-lynxos*)
6a789d5e 1150 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1151 ;;
1152 rs6000-*-aix*)
6a789d5e 1153 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1154 ;;
1155 rs6000-*-*)
2909494b 1156 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1157 ;;
1158 m68k-apollo-*)
0036370f 1159 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
6599da04 1160 ;;
ca9fe997 1161 microblaze*)
2909494b 1162 noconfigdirs="$noconfigdirs gprof"
ca9fe997 1163 ;;
74ae587e 1164 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
d9dced13
RS		 1165 if test x$with_newlib = xyes; then
1166 noconfigdirs="$noconfigdirs gprof"
1167 fi
d9dced13 1168 ;;
6599da04 1169 mips*-*-irix5*)
0036370f 1170 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04
JM		 1171 ;;
1172 mips*-*-irix6*)
2909494b 1173 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1174 ;;
6599da04 1175 mips*-*-bsd*)
bc98bcc4 1176 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
6599da04 1177 ;;
9bec4bf0 1178 mips*-*-linux*)
9bec4bf0 1179 ;;
bc98bcc4
JBG		 1180 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1181 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1182 noconfigdirs="$noconfigdirs ld gas gprof"
1183 ;;
6599da04 1184 mips*-*-*)
2909494b 1185 noconfigdirs="$noconfigdirs gprof"
6599da04 1186 ;;
738f2522 1187 nvptx*-*-*)
738f2522
BS		 1188 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1189 ;;
74ae587e
JBG		 1190 or1k*-*-*)
1191 noconfigdirs="$noconfigdirs gdb"
1192 ;;
bc6d9014 1193 sh-*-*)
ea2002ba
CB		 1194 case "${target}" in
1195 sh*-*-elf)
2909494b 1196 ;;
ea2002ba 1197 *)
2909494b 1198 noconfigdirs="$noconfigdirs target-libgloss" ;;
ea2002ba 1199 esac
6599da04
JM		 1200 ;;
1201 sparc-*-sunos4*)
6a789d5e 1202 if test x${is_cross_compiler} = xno ; then
6599da04
JM		 1203 use_gnu_ld=no
1204 fi
1205 ;;
b42f0d7e 1206 tic6x-*-*)
0d557ff8 1207 noconfigdirs="$noconfigdirs sim"
b42f0d7e 1208 ;;
341c653c 1209 tilepro*-*-* | tilegx*-*-*)
db1d217c
WL		 1210 noconfigdirs="$noconfigdirs sim"
1211 ;;
6599da04 1212 v810-*-*)
0036370f 1213 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
6599da04
JM		 1214 ;;
1215 vax-*-*)
2909494b 1216 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1217 ;;
6599da04
JM		 1218esac
1219
6599da04
JM		 1220# If we aren't building newlib, then don't build libgloss, since libgloss
1221# depends upon some newlib header files.
1222case "${noconfigdirs}" in
1223 *target-libgloss*) ;;
1224 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
55380b08 1225esac
6599da04 1226
55380b08 1227# Work in distributions that contain no compiler tools, like Autoconf.
671aa708 1228host_makefile_frag=/dev/null
55380b08
NN		 1229if test -d ${srcdir}/config ; then
1230case "${host}" in
f2a0e225 1231 i[[3456789]]86-*-msdosdjgpp*)
55380b08
NN		 1232 host_makefile_frag="config/mh-djgpp"
1233 ;;
1234 *-cygwin*)
2a79c47f 1235 ACX_CHECK_CYGWIN_CAT_WORKS
55380b08
NN		 1236 host_makefile_frag="config/mh-cygwin"
1237 ;;
c53a18d3 1238 *-mingw*)
1f5a6b84 1239 host_makefile_frag="config/mh-mingw"
738a52d3 1240 ;;
cabb9d59 1241 alpha*-linux*)
13be44ed
UB		 1242 host_makefile_frag="config/mh-alpha-linux"
1243 ;;
00afcaa0 1244 hppa*-hp-hpux10*)
00afcaa0 1245 host_makefile_frag="config/mh-pa-hpux10"
55380b08 1246 ;;
111eeb6e 1247 hppa*-hp-hpux*)
00afcaa0
PB		 1248 host_makefile_frag="config/mh-pa"
1249 ;;
1250 hppa*-*)
1251 host_makefile_frag="config/mh-pa"
1252 ;;
d8ed14ce
IS		 1253 *-*-darwin*)
1254 host_makefile_frag="config/mh-darwin"
be8fff81 1255 ;;
d19bca38
PB		 1256 powerpc-*-aix*)
1257 host_makefile_frag="config/mh-ppc-aix"
1258 ;;
1259 rs6000-*-aix*)
1260 host_makefile_frag="config/mh-ppc-aix"
1261 ;;
55380b08
NN		 1262esac
1263fi
1264
e4c9c075 1265if test "${build}" != "${host}" ; then
0999159b
PB		 1266 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1267 AS_FOR_BUILD=${AS_FOR_BUILD-as}
e4c9c075 1268 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
0999159b 1269 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
0999159b 1270 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
632e2a07 1271 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
0999159b
PB		 1272 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1273 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1274 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1275 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1276 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1277 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
e4c9c075 1278else
0999159b
PB		 1279 AR_FOR_BUILD="\$(AR)"
1280 AS_FOR_BUILD="\$(AS)"
e4c9c075 1281 CC_FOR_BUILD="\$(CC)"
0999159b 1282 CXX_FOR_BUILD="\$(CXX)"
0999159b 1283 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
632e2a07 1284 GOC_FOR_BUILD="\$(GOC)"
0999159b
PB		 1285 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1286 LD_FOR_BUILD="\$(LD)"
1287 NM_FOR_BUILD="\$(NM)"
1288 RANLIB_FOR_BUILD="\$(RANLIB)"
1289 WINDRES_FOR_BUILD="\$(WINDRES)"
1290 WINDMC_FOR_BUILD="\$(WINDMC)"
c3a86da9 1291fi
e4c9c075 1292
c3a86da9
DJ		 1293AC_PROG_CC
1294AC_PROG_CXX
1295
1296# We must set the default linker to the linker used by gcc for the correct
1297# operation of libtool. If LD is not defined and we are using gcc, try to
1298# set the LD default to the ld used by gcc.
1299if test -z "$LD"; then
1300 if test "$GCC" = yes; then
1301 case $build in
1302 *-*-mingw*)
1303 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1304 *)
1305 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1306 esac
1307 case $gcc_prog_ld in
1308 # Accept absolute paths.
1309 [[\\/]* | [A-Za-z]:[\\/]*)]
1310 LD="$gcc_prog_ld" ;;
1311 esac
1312 fi
e4c9c075
PB		 1313fi
1314
0b21f5d3
EB		 1315# Check whether -static-libstdc++ -static-libgcc is supported.
1316have_static_libs=no
1317if test "$GCC" = yes; then
1318 saved_LDFLAGS="$LDFLAGS"
1319
1320 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1321 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1322 AC_LANG_PUSH(C++)
0d6414b2
EB		 1323 AC_LINK_IFELSE([
1324#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1325#error -static-libstdc++ not implemented
1326#endif
1327int main() {}],
0b21f5d3
EB		 1328 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1329 [AC_MSG_RESULT([no])])
1330 AC_LANG_POP(C++)
1331
1332 LDFLAGS="$saved_LDFLAGS"
1333fi
1334
e4c9c075 1335ACX_PROG_GNAT
a76494aa 1336ACX_PROG_CMP_IGNORE_INITIAL
e4c9c075 1337
ff3ac0f4
ILT		 1338AC_ARG_ENABLE([bootstrap],
1339[AS_HELP_STRING([--enable-bootstrap],
1340 [enable bootstrapping @<:@yes if native build@:>@])],,
1341enable_bootstrap=default)
1342
1343# Issue errors and warnings for invalid/strange bootstrap combinations.
bf03b9ff
ILT		 1344if test -r $srcdir/gcc/configure; then
1345 have_compiler=yes
1346else
1347 have_compiler=no
1348fi
ff3ac0f4
ILT		 1349
1350case "$have_compiler:$host:$target:$enable_bootstrap" in
1351 *:*:*:no) ;;
1352
1353 # Default behavior. Enable bootstrap if we have a compiler
1354 # and we are in a native configuration.
1355 yes:$build:$build:default)
1356 enable_bootstrap=yes ;;
1357
1358 *:*:*:default)
1359 enable_bootstrap=no ;;
1360
1361 # We have a compiler and we are in a native configuration, bootstrap is ok
1362 yes:$build:$build:yes)
1363 ;;
1364
1365 # Other configurations, but we have a compiler. Assume the user knows
1366 # what he's doing.
1367 yes:*:*:yes)
1368 AC_MSG_WARN([trying to bootstrap a cross compiler])
1369 ;;
1370
1371 # No compiler: if they passed --enable-bootstrap explicitly, fail
1372 no:*:*:yes)
1373 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1374
1375 # Fail if wrong command line
1376 *)
1377 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1378 ;;
1379esac
1380
46070488
JM		 1381# When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1382# C++98 compiler can still start the bootstrap.
1383if test "$enable_bootstrap:$GXX" = "yes:yes"; then
8ca528d9 1384 CXX="$CXX -std=gnu++98"
46070488
JM		 1385fi
1386
592c90ff
KG		 1387# Used for setting $lt_cv_objdir
1388_LT_CHECK_OBJDIR
1389
acd26225 1390# Check for GMP, MPFR and MPC
3a5729ea 1391gmplibs="-lmpc -lmpfr -lgmp"
6de9cd9a 1392gmpinc=
e69bf64b 1393have_gmp=no
acd26225
KG		 1394
1395# Specify a location for mpc
1396# check for this first so it ends up on the link line before mpfr.
33e39b66
AS		 1397AC_ARG_WITH(mpc,
1398[AS_HELP_STRING([--with-mpc=PATH],
1399 [specify prefix directory for installed MPC package.
1400 Equivalent to --with-mpc-include=PATH/include
1401 plus --with-mpc-lib=PATH/lib])])
1402AC_ARG_WITH(mpc-include,
1403[AS_HELP_STRING([--with-mpc-include=PATH],
1404 [specify directory for installed MPC include files])])
1405AC_ARG_WITH(mpc-lib,
1406[AS_HELP_STRING([--with-mpc-lib=PATH],
1407 [specify directory for the installed MPC library])])
acd26225
KG		 1408
1409if test "x$with_mpc" != x; then
3a5729ea
KG		 1410 gmplibs="-L$with_mpc/lib $gmplibs"
1411 gmpinc="-I$with_mpc/include $gmpinc"
acd26225
KG		 1412fi
1413if test "x$with_mpc_include" != x; then
3a5729ea 1414 gmpinc="-I$with_mpc_include $gmpinc"
acd26225
KG		 1415fi
1416if test "x$with_mpc_lib" != x; then
3a5729ea 1417 gmplibs="-L$with_mpc_lib $gmplibs"
acd26225
KG		 1418fi
1419if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
592c90ff 1420 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
3a5729ea 1421 gmpinc='-I$$s/mpc/src '"$gmpinc"
acd26225
KG		 1422 # Do not test the mpc version. Assume that it is sufficient, since
1423 # it is in the source tree, and the library has not been built yet
1424 # but it would be included on the link line in the version check below
1425 # hence making the test fail.
3a5729ea 1426 have_gmp=yes
acd26225 1427fi
e69bf64b 1428
bebf829d
PB		 1429# Specify a location for mpfr
1430# check for this first so it ends up on the link line before gmp.
33e39b66
AS		 1431AC_ARG_WITH(mpfr-dir,
1432[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1433[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1434Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1435
1436AC_ARG_WITH(mpfr,
1437[AS_HELP_STRING([--with-mpfr=PATH],
1438 [specify prefix directory for installed MPFR package.
1439 Equivalent to --with-mpfr-include=PATH/include
1440 plus --with-mpfr-lib=PATH/lib])])
1441AC_ARG_WITH(mpfr-include,
1442[AS_HELP_STRING([--with-mpfr-include=PATH],
1443 [specify directory for installed MPFR include files])])
1444AC_ARG_WITH(mpfr-lib,
1445[AS_HELP_STRING([--with-mpfr-lib=PATH],
1446 [specify directory for the installed MPFR library])])
bebf829d
PB		 1447
1448if test "x$with_mpfr" != x; then
1449 gmplibs="-L$with_mpfr/lib $gmplibs"
3a5729ea 1450 gmpinc="-I$with_mpfr/include $gmpinc"
bebf829d 1451fi
8a877c9c 1452if test "x$with_mpfr_include" != x; then
3a5729ea 1453 gmpinc="-I$with_mpfr_include $gmpinc"
8a877c9c
KG		 1454fi
1455if test "x$with_mpfr_lib" != x; then
1456 gmplibs="-L$with_mpfr_lib $gmplibs"
1457fi
e69bf64b 1458if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
8f3675f8
MR		 1459 # MPFR v3.1.0 moved the sources into a src sub-directory.
1460 if ! test -d ${srcdir}/mpfr/src; then
1461 AC_MSG_ERROR([dnl
1462Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1463 fi
00f35794
BE		 1464 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1465 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1466 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
e69bf64b
PB		 1467 # Do not test the mpfr version. Assume that it is sufficient, since
1468 # it is in the source tree, and the library has not been built yet
1469 # but it would be included on the link line in the version check below
1470 # hence making the test fail.
1471 have_gmp=yes
1472fi
bebf829d 1473
6de9cd9a 1474# Specify a location for gmp
33e39b66
AS		 1475AC_ARG_WITH(gmp-dir,
1476[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1477[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1478Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1479
1480AC_ARG_WITH(gmp,
1481[AS_HELP_STRING([--with-gmp=PATH],
1482 [specify prefix directory for the installed GMP package.
1483 Equivalent to --with-gmp-include=PATH/include
1484 plus --with-gmp-lib=PATH/lib])])
1485AC_ARG_WITH(gmp-include,
1486[AS_HELP_STRING([--with-gmp-include=PATH],
1487 [specify directory for installed GMP include files])])
1488AC_ARG_WITH(gmp-lib,
1489[AS_HELP_STRING([--with-gmp-lib=PATH],
1490 [specify directory for the installed GMP library])])
6de9cd9a 1491
6de9cd9a 1492
bebf829d
PB		 1493if test "x$with_gmp" != x; then
1494 gmplibs="-L$with_gmp/lib $gmplibs"
1495 gmpinc="-I$with_gmp/include $gmpinc"
6de9cd9a 1496fi
8a877c9c
KG		 1497if test "x$with_gmp_include" != x; then
1498 gmpinc="-I$with_gmp_include $gmpinc"
1499fi
1500if test "x$with_gmp_lib" != x; then
1501 gmplibs="-L$with_gmp_lib $gmplibs"
1502fi
e69bf64b 1503if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
592c90ff 1504 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
e69bf64b 1505 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
9183bdcf 1506 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
592c90ff 1507 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
0ff2d841 1508 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
e69bf64b
PB		 1509 # Do not test the gmp version. Assume that it is sufficient, since
1510 # it is in the source tree, and the library has not been built yet
1511 # but it would be included on the link line in the version check below
1512 # hence making the test fail.
1513 have_gmp=yes
1514fi
6de9cd9a 1515
d943d7c4 1516if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
e69bf64b
PB		 1517 have_gmp=yes
1518 saved_CFLAGS="$CFLAGS"
1519 CFLAGS="$CFLAGS $gmpinc"
362c6d2f
KG		 1520 # Check for the recommended and required versions of GMP.
1521 AC_MSG_CHECKING([for the correct version of gmp.h])
e69bf64b 1522 AC_TRY_COMPILE([#include "gmp.h"],[
362c6d2f
KG		 1523 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1524 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
385c0681 1525 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
e48d66a9 1526 choke me
e69bf64b 1527 #endif
e8fd69bb 1528 ], [AC_TRY_COMPILE([#include <gmp.h>],[
362c6d2f
KG		 1529 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1530 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1531 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1532 choke me
1533 #endif
e8fd69bb 1534 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1535 [AC_MSG_RESULT([no]); have_gmp=no])
e69bf64b 1536
acd26225 1537 # If we have GMP, check the MPFR version.
e69bf64b 1538 if test x"$have_gmp" = xyes; then
362c6d2f
KG		 1539 # Check for the recommended and required versions of MPFR.
1540 AC_MSG_CHECKING([for the correct version of mpfr.h])
acd26225 1541 AC_TRY_COMPILE([#include <gmp.h>
e69bf64b 1542 #include <mpfr.h>],[
f7d6bc01 1543 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
e69bf64b
PB		 1544 choke me
1545 #endif
e8fd69bb 1546 ], [AC_TRY_COMPILE([#include <gmp.h>
acd26225 1547 #include <mpfr.h>],[
362c6d2f 1548 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
acd26225
KG		 1549 choke me
1550 #endif
e8fd69bb 1551 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
acd26225
KG		 1552 [AC_MSG_RESULT([no]); have_gmp=no])
1553 fi
1554
1555 # Check for the MPC header version.
3a5729ea 1556 if test x"$have_gmp" = xyes ; then
362c6d2f 1557 # Check for the recommended and required versions of MPC.
acd26225
KG		 1558 AC_MSG_CHECKING([for the correct version of mpc.h])
1559 AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f 1560 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
acd26225
KG		 1561 choke me
1562 #endif
e8fd69bb 1563 ], [AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f
KG		 1564 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1565 choke me
1566 #endif
e8fd69bb 1567 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1568 [AC_MSG_RESULT([no]); have_gmp=no])
acd26225
KG		 1569 fi
1570
1571 # Now check the MPFR library.
1572 if test x"$have_gmp" = xyes; then
1573 saved_LIBS="$LIBS"
1574 LIBS="$LIBS $gmplibs"
3a5729ea
KG		 1575 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1576 AC_TRY_LINK([#include <mpc.h>],[
54e433bc
MK		 1577 mpfr_t n;
1578 mpfr_t x;
3a5729ea 1579 mpc_t c;
e69bf64b 1580 int t;
54e433bc
MK		 1581 mpfr_init (n);
1582 mpfr_init (x);
e69bf64b
PB		 1583 mpfr_atan2 (n, n, x, GMP_RNDN);
1584 mpfr_erfc (n, x, GMP_RNDN);
1585 mpfr_subnormalize (x, t, GMP_RNDN);
3a5729ea
KG		 1586 mpfr_clear(n);
1587 mpfr_clear(x);
1588 mpc_init2 (c, 53);
1589 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1590 mpc_cosh (c, c, MPC_RNDNN);
1591 mpc_pow (c, c, c, MPC_RNDNN);
1592 mpc_acosh (c, c, MPC_RNDNN);
1593 mpc_clear (c);
acd26225
KG		 1594 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1595 LIBS="$saved_LIBS"
e69bf64b 1596 fi
acd26225 1597
e69bf64b 1598 CFLAGS="$saved_CFLAGS"
6de9cd9a 1599
362c6d2f
KG		 1600# The library versions listed in the error message below should match
1601# the HARD-minimums enforced above.
e69bf64b 1602 if test x$have_gmp != xyes; then
f7d6bc01 1603 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
3a5729ea
KG		 1604Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1605their locations. Source code for these libraries can be found at
1606their respective hosting sites as well as at
1607ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1608http://gcc.gnu.org/install/prerequisites.html for additional info. If
1609you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1610make sure that you have installed both the libraries and the header
1611files. They may be located in separate packages.])
e69bf64b 1612 fi
70ec446f
KG		 1613fi
1614
acd26225 1615# Flags needed for both GMP, MPFR and/or MPC.
6de9cd9a
DN		 1616AC_SUBST(gmplibs)
1617AC_SUBST(gmpinc)
9e3eba15 1618AC_SUBST(extra_mpfr_configure_flags)
acd26225
KG		 1619AC_SUBST(extra_mpc_gmp_configure_flags)
1620AC_SUBST(extra_mpc_mpfr_configure_flags)
0ff2d841 1621AC_SUBST(extra_isl_gmp_configure_flags)
6de9cd9a 1622
00020c16
ILT		 1623# Libraries to use for stage1 or when not bootstrapping.
1624AC_ARG_WITH(stage1-libs,
33e39b66 1625[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
00020c16
ILT		 1626[if test "$withval" = "no" -o "$withval" = "yes"; then
1627 stage1_libs=
1628 else
1629 stage1_libs=$withval
1630 fi],
5dc85f7e 1631[stage1_libs=])
00020c16
ILT		 1632AC_SUBST(stage1_libs)
1633
0b21f5d3
EB		 1634# Linker flags to use for stage1 or when not bootstrapping.
1635AC_ARG_WITH(stage1-ldflags,
1636[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1637[if test "$withval" = "no" -o "$withval" = "yes"; then
1638 stage1_ldflags=
1639 else
1640 stage1_ldflags=$withval
1641 fi],
1642[stage1_ldflags=
1643 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1644 # if supported. But if the user explicitly specified the libraries to use,
1645 # trust that they are doing what they want.
1646 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1647 stage1_ldflags="-static-libstdc++ -static-libgcc"
1648 fi])
1649AC_SUBST(stage1_ldflags)
1650
5dc85f7e 1651# Libraries to use for stage2 and later builds.
00020c16 1652AC_ARG_WITH(boot-libs,
33e39b66 1653[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
00020c16
ILT		 1654[if test "$withval" = "no" -o "$withval" = "yes"; then
1655 poststage1_libs=
1656 else
e90e6bd7 1657 poststage1_libs=$withval
00020c16 1658 fi],
5dc85f7e 1659[poststage1_libs=])
00020c16
ILT		 1660AC_SUBST(poststage1_libs)
1661
ed2eaa9f
ILT		 1662# Linker flags to use for stage2 and later builds.
1663AC_ARG_WITH(boot-ldflags,
33e39b66
AS		 1664[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1665 [linker flags for stage2 and later])],
ed2eaa9f
ILT		 1666[if test "$withval" = "no" -o "$withval" = "yes"; then
1667 poststage1_ldflags=
1668 else
1669 poststage1_ldflags=$withval
1670 fi],
1671[poststage1_ldflags=
bec93d73
ILT		 1672 # In stages 2 and 3, default to linking libstdc++ and libgcc
1673 # statically. But if the user explicitly specified the libraries to
1674 # use, trust that they are doing what they want.
1675 if test "$poststage1_libs" = ""; then
ed2eaa9f
ILT		 1676 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1677 fi])
1678AC_SUBST(poststage1_ldflags)
1679
e357a5e0 1680# GCC GRAPHITE dependency isl.
4a9bb2aa 1681# Basic setup is inlined here, actual checks are in config/isl.m4
625afa23 1682
625afa23
RG		 1683AC_ARG_WITH(isl,
1684 [AS_HELP_STRING(
1685 [--with-isl=PATH],
e357a5e0 1686 [Specify prefix directory for the installed isl package.
625afa23
RG		 1687 Equivalent to --with-isl-include=PATH/include
1688 plus --with-isl-lib=PATH/lib])])
1689
eae1a5d4 1690# Treat --without-isl as a request to disable
625afa23 1691# GRAPHITE support and skip all following checks.
eae1a5d4 1692if test "x$with_isl" != "xno"; then
e357a5e0 1693 # Check for isl
625afa23
RG		 1694 dnl Provide configure switches and initialize islinc & isllibs
1695 dnl with user input.
1696 ISL_INIT_FLAGS
e357a5e0 1697 dnl The versions of isl that work for Graphite
e0c0c325 1698 ISL_CHECK_VERSION()
e357a5e0 1699 dnl Only execute fail-action, if isl has been requested.
33ad93b9 1700 ISL_IF_FAILED([
e357a5e0 1701 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
f8bf9252 1702fi
f8bf9252 1703
e357a5e0 1704# If the isl check failed, disable builds of in-tree variant of isl
625afa23 1705if test "x$with_isl" = xno ||
625afa23 1706 test "x$gcc_cv_isl" = xno; then
4a9bb2aa 1707 noconfigdirs="$noconfigdirs isl"
625afa23 1708 islinc=
eae1a5d4
RG		 1709fi
1710
1711AC_SUBST(isllibs)
625afa23 1712AC_SUBST(islinc)
625afa23 1713
d7f09764
DN		 1714# Check for LTO support.
1715AC_ARG_ENABLE(lto,
33e39b66 1716[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
d7f09764
DN		 1717enable_lto=$enableval,
1718enable_lto=yes; default_enable_lto=yes)
1719
48215350
DK		 1720ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1721 build_lto_plugin=yes
1722],[if test x"$default_enable_lto" = x"yes" ; then
bb79486c 1723 case $target in
deeba76a 1724 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
48215350 1725 # On other non-ELF platforms, LTO has yet to be validated.
bb79486c
JH		 1726 *) enable_lto=no ;;
1727 esac
3bec79c5 1728 else
db50fe7d
IS		 1729 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1730 # It would also be nice to check the binutils support, but we don't
3bec79c5
DK		 1731 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1732 # warn during gcc/ subconfigure; unless you're bootstrapping with
1733 # -flto it won't be needed until after installation anyway.
1734 case $target in
9e530bcd 1735 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
3bec79c5
DK		 1736 *) if test x"$enable_lto" = x"yes"; then
1737 AC_MSG_ERROR([LTO support is not enabled for this target.])
1738 fi
1739 ;;
1740 esac
1741 fi
1cd0b716 1742 # Among non-ELF, only Windows platforms support the lto-plugin so far.
48215350 1743 # Build it unless LTO was explicitly disabled.
1cd0b716 1744 case $target in
48215350 1745 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1cd0b716
DK		 1746 *) ;;
1747 esac
48215350 1748])
d7f09764 1749
45b3824d
TS		 1750AC_ARG_ENABLE(linker-plugin-configure-flags,
1751 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1752 [additional flags for configuring linker plugins @<:@none@:>@])],
1753 extra_linker_plugin_configure_flags=$enableval,
1754 extra_linker_plugin_configure_flags=)
1755AC_SUBST(extra_linker_plugin_configure_flags)
1756AC_ARG_ENABLE(linker-plugin-flags,
1757 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1758 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1759 extra_linker_plugin_flags=$enableval,
1760 extra_linker_plugin_flags=)
1761AC_SUBST(extra_linker_plugin_flags)
1762
cdfee50a
NS		 1763# Enable --enable-host-shared.
1764# Checked early to determine whether jit is an 'all' language
1765AC_ARG_ENABLE(host-shared,
1766[AS_HELP_STRING([--enable-host-shared],
1767 [build host code as shared libraries])],
1768[host_shared=$enableval], [host_shared=no])
1769AC_SUBST(host_shared)
f8bf9252 1770
0823efed 1771# By default, C and C++ are the only stage 1 languages.
e1888513 1772stage1_languages=,c,
2805b53a 1773
00020c16 1774# Target libraries that we bootstrap.
ad1e5170 1775bootstrap_target_libs=,target-libgcc,
00020c16 1776
e4c9c075
PB		 1777# Figure out what language subdirectories are present.
1778# Look if the user specified --enable-languages="..."; if not, use
1779# the environment variable $LANGUAGES if defined. $LANGUAGES might
1780# go away some day.
1781# NB: embedded tabs in this IF block -- do not untabify
1782if test -d ${srcdir}/gcc; then
1783 if test x"${enable_languages+set}" != xset; then
1784 if test x"${LANGUAGES+set}" = xset; then
1785 enable_languages="${LANGUAGES}"
6b1786aa 1786 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
e4c9c075 1787 else
cdfee50a 1788 enable_languages=default
e4c9c075
PB		 1789 fi
1790 else
1791 if test x"${enable_languages}" = x ||
1792 test x"${enable_languages}" = xyes;
1793 then
6b1786aa 1794 echo configure.ac: --enable-languages needs at least one language argument 1>&2
e4c9c075
PB		 1795 exit 1
1796 fi
1797 fi
1798 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1799
7f26dfa3
FXC		 1800 # 'f95' is the old name for the 'fortran' language. We issue a warning
1801 # and make the substitution.
1802 case ,${enable_languages}, in
1803 *,f95,*)
6b1786aa 1804 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
7f26dfa3
FXC		 1805 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1806 ;;
1807 esac
1808
0823efed
DN		 1809 # If bootstrapping, C++ must be enabled.
1810 case ",$enable_languages,:$enable_bootstrap" in
1811 *,c++,*:*) ;;
1812 *:yes)
ff3ac0f4
ILT		 1813 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1814 enable_languages="${enable_languages},c++"
1815 else
0823efed 1816 AC_MSG_ERROR([bootstrapping requires c++ sources])
ff3ac0f4
ILT		 1817 fi
1818 ;;
1819 esac
1820
e4c9c075
PB		 1821 # First scan to see if an enabled language requires some other language.
1822 # We assume that a given config-lang.in will list all the language
1823 # front ends it requires, even if some are required indirectly.
1824 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1825 case ${lang_frag} in
1826 ..) ;;
1827 # The odd quoting in the next line works around
1828 # an apparent bug in bash 1.12 on linux.
1829 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1830 *)
69ecd18f
ILT		 1831 # From the config-lang.in, get $language, $lang_requires, and
1832 # $lang_requires_boot_languages.
e4c9c075
PB		 1833 language=
1834 lang_requires=
69ecd18f 1835 lang_requires_boot_languages=
d4360477
NS		 1836 # set srcdir during sourcing lang_frag to the gcc dir.
1837 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1838 # polutes this shell
1839 saved_srcdir=${srcdir}
1840 srcdir=${srcdir}/gcc . ${lang_frag}
1841 srcdir=${saved_srcdir}
69ecd18f 1842 for other in ${lang_requires} ${lang_requires_boot_languages}; do
e4c9c075
PB		 1843 case ,${enable_languages}, in
1844 *,$other,*) ;;
cdfee50a 1845 *,default,*) ;;
e4c9c075
PB		 1846 *,all,*) ;;
1847 *,$language,*)
1848 echo " \`$other' language required by \`$language'; enabling" 1>&2
1849 enable_languages="${enable_languages},${other}"
1850 ;;
1851 esac
1852 done
69ecd18f
ILT		 1853 for other in ${lang_requires_boot_languages} ; do
1854 if test "$other" != "c"; then
1855 case ,${enable_stage1_languages}, in
1856 *,$other,*) ;;
cdfee50a 1857 *,default,*) ;;
69ecd18f
ILT		 1858 *,all,*) ;;
1859 *)
1860 case ,${enable_languages}, in
1861 *,$language,*)
1862 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1863 enable_stage1_languages="$enable_stage1_languages,${other}"
1864 ;;
1865 esac
1866 ;;
1867 esac
1868 fi
1869 done
e4c9c075
PB		 1870 ;;
1871 esac
1872 done
1873
e1888513 1874 new_enable_languages=,c,
d7f09764
DN		 1875
1876 # If LTO is enabled, add the LTO front end.
d7f09764 1877 if test "$enable_lto" = "yes" ; then
e4c5bd48
RW		 1878 case ,${enable_languages}, in
1879 *,lto,*) ;;
1880 *) enable_languages="${enable_languages},lto" ;;
1881 esac
1cd0b716 1882 if test "${build_lto_plugin}" = "yes" ; then
d7f09764 1883 configdirs="$configdirs lto-plugin"
d7f09764
DN		 1884 fi
1885 fi
d7f09764 1886
426c1eb0
TS		 1887 # If we're building an offloading compiler, add the LTO front end.
1888 if test x"$enable_as_accelerator_for" != x ; then
1889 case ,${enable_languages}, in
1890 *,lto,*) ;;
1891 *) enable_languages="${enable_languages},lto" ;;
1892 esac
1893 fi
1894
cdfee50a 1895 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
e1888513 1896 potential_languages=,c,
e4c9c075 1897
4da3b0f8
ILT		 1898 enabled_target_libs=
1899 disabled_target_libs=
1900
e4c9c075
PB		 1901 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1902 case ${lang_frag} in
1903 ..) ;;
1904 # The odd quoting in the next line works around
1905 # an apparent bug in bash 1.12 on linux.
1906 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1907 *)
1908 # From the config-lang.in, get $language, $target_libs,
2805b53a 1909 # $lang_dirs, $boot_language, and $build_by_default
e4c9c075
PB		 1910 language=
1911 target_libs=
1912 lang_dirs=
1546bb64 1913 subdir_requires=
e1888513
PB		 1914 boot_language=no
1915 build_by_default=yes
d4360477
NS		 1916 # set srcdir during sourcing. See above about save & restore
1917 saved_srcdir=${srcdir}
1918 srcdir=${srcdir}/gcc . ${lang_frag}
1919 srcdir=${saved_srcdir}
e1888513
PB		 1920 if test x${language} = x; then
1921 echo "${lang_frag} doesn't set \$language." 1>&2
1922 exit 1
1923 fi
1924
78767fd9 1925 if test "$language" = "c++"; then
0823efed 1926 boot_language=yes
00020c16
ILT		 1927 fi
1928
178f875a 1929 add_this_lang=no
cdfee50a
NS		 1930 # C is always enabled, so no need to add it again
1931 if test "$language" != "c"; then
1932 case ,${enable_languages}, in
1933 *,${language},*)
1934 # Language was explicitly selected; include it
d4a10d0a 1935 add_this_lang=yes
cdfee50a
NS		 1936 ;;
1937 *,all,*)
1938 # All languages are enabled
1939 add_this_lang=all
1940 ;;
1941 *,default,*)
1942 # 'default' was selected, select it if it is a default language
178f875a 1943 add_this_lang=${build_by_default}
cdfee50a
NS		 1944 ;;
1945 esac
1946 fi
6de9cd9a 1947
1546bb64 1948 # Disable languages that need other directories if these aren't available.
95695ad3 1949 for i in $subdir_requires; do
b6348cb3 1950 test -f "$srcdir/gcc/$i/config-lang.in" && continue
cdfee50a
NS		 1951 case ${add_this_lang} in
1952 yes)
1546bb64
PB		 1953 # Specifically requested language; tell them.
1954 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1955 ;;
cdfee50a
NS		 1956 all)
1957 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
1958 add_this_lang=unsupported
1959 ;;
1546bb64
PB		 1960 *)
1961 # Silently disable.
e1888513 1962 add_this_lang=unsupported
1546bb64
PB		 1963 ;;
1964 esac
1965 done
1966
e1888513 1967 # Disable Ada if no preexisting GNAT is available.
cdfee50a
NS		 1968 case ${add_this_lang}:${language}:${have_gnat} in
1969 yes:ada:no)
e1888513
PB		 1970 # Specifically requested language; tell them.
1971 AC_MSG_ERROR([GNAT is required to build $language])
1972 ;;
cdfee50a
NS		 1973 all:ada:no)
1974 AC_MSG_WARN([GNAT is required to build $language])
1975 add_this_lang=unsupported
1976 ;;
e1888513
PB		 1977 *:ada:no)
1978 # Silently disable.
1979 add_this_lang=unsupported
1980 ;;
1981 esac
1982
cdfee50a
NS		 1983 # Disable jit if -enable-host-shared not specified
1984 case ${add_this_lang}:${language}:${host_shared} in
1985 yes:jit:no)
1986 # PR jit/64780: explicitly specify --enable-host-shared
1987 AC_MSG_ERROR([
1988Enabling language "jit" requires --enable-host-shared.
1989
1990--enable-host-shared typically slows the rest of the compiler down by
1991a few %, so you must explicitly enable it.
1992
1993If you want to build both the jit and the regular compiler, it is often
1994best to do this via two separate configure/builds, in separate
1995directories, to avoid imposing the performance cost of
1996--enable-host-shared on the regular compiler.])
1997 ;;
1998 all:jit:no)
1999 AC_MSG_WARN([--enable-host-shared required to build $language])
2000 add_this_lang=unsupported
2001 ;;
2002 *:jit:no)
2003 # Silently disable.
2004 add_this_lang=unsupported
2005 ;;
2006 esac
2007
2008 # Disable a language that is unsupported by the target.
2009 case "${add_this_lang}: $unsupported_languages " in
2010 no:*) ;;
2011 unsupported:*) ;;
2012 *:*" $language "*)
2013 AC_MSG_WARN([${language} not supported for this target])
e1888513 2014 add_this_lang=unsupported
4fab7234
HPN		 2015 ;;
2016 esac
2017
6de9cd9a 2018 case $add_this_lang in
e1888513 2019 unsupported)
e4c9c075 2020 # Remove language-dependent dirs.
4da3b0f8
ILT		 2021 disabled_target_libs="$disabled_target_libs $target_libs"
2022 noconfigdirs="$noconfigdirs $lang_dirs"
2805b53a 2023 ;;
e1888513
PB		 2024 no)
2025 # Remove language-dependent dirs; still show language as supported.
4da3b0f8
ILT		 2026 disabled_target_libs="$disabled_target_libs $target_libs"
2027 noconfigdirs="$noconfigdirs $lang_dirs"
e1888513
PB		 2028 potential_languages="${potential_languages}${language},"
2029 ;;
cdfee50a 2030 all|yes)
e1888513
PB		 2031 new_enable_languages="${new_enable_languages}${language},"
2032 potential_languages="${potential_languages}${language},"
2805b53a 2033 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
4da3b0f8 2034 enabled_target_libs="$enabled_target_libs $target_libs"
ab9dcd0c
RW		 2035 case "${boot_language}:,$enable_stage1_languages," in
2036 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
340de83f 2037 # Add to (comma-separated) list of stage 1 languages.
ab9dcd0c
RW		 2038 case ",$stage1_languages," in
2039 *,$language,* | ,yes, | ,all,) ;;
2040 *) stage1_languages="${stage1_languages}${language}," ;;
2041 esac
00020c16
ILT		 2042 # We need to bootstrap any supporting libraries.
2043 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2805b53a
NN		 2044 ;;
2045 esac
2046 ;;
e4c9c075
PB		 2047 esac
2048 ;;
2049 esac
2050 done
2051
4da3b0f8
ILT		 2052 # Add target libraries which are only needed for disabled languages
2053 # to noconfigdirs.
2054 if test -n "$disabled_target_libs"; then
2055 for dir in $disabled_target_libs; do
2056 case " $enabled_target_libs " in
2057 *" ${dir} "*) ;;
2058 *) noconfigdirs="$noconfigdirs $dir" ;;
2059 esac
2060 done
2061 fi
2062
e1888513 2063 AC_ARG_ENABLE(stage1-languages,
33e39b66
AS		 2064 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2065 [choose additional languages to build during
2066 stage1. Mostly useful for compiler development])],
e1888513
PB		 2067 [case ,${enable_stage1_languages}, in
2068 ,no,|,,)
2069 # Set it to something that will have no effect in the loop below
2070 enable_stage1_languages=c ;;
2071 ,yes,)
2072 enable_stage1_languages=`echo $new_enable_languages | \
2073 sed -e "s/^,//" -e "s/,$//" ` ;;
2074 *,all,*)
2075 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2076 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2077 esac
2078
2079 # Add "good" languages from enable_stage1_languages to stage1_languages,
2080 # while "bad" languages go in missing_languages. Leave no duplicates.
2081 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2082 case $potential_languages in
2083 *,$i,*)
2084 case $stage1_languages in
2085 *,$i,*) ;;
2086 *) stage1_languages="$stage1_languages$i," ;;
2087 esac ;;
2088 *)
2089 case $missing_languages in
2090 *,$i,*) ;;
2091 *) missing_languages="$missing_languages$i," ;;
2092 esac ;;
2093 esac
2094 done])
2095
2096 # Remove leading/trailing commas that were added for simplicity
2097 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
79b4b7d2 2098 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
e1888513
PB		 2099 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2100 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2101
e4c9c075
PB		 2102 if test "x$missing_languages" != x; then
2103 AC_MSG_ERROR([
0cf085e4 2104The following requested languages could not be built: ${missing_languages}
e1888513 2105Supported languages are: ${potential_languages}])
e4c9c075 2106 fi
e4c9c075
PB		 2107 if test "x$new_enable_languages" != "x$enable_languages"; then
2108 echo The following languages will be built: ${new_enable_languages}
e1888513 2109 enable_languages="$new_enable_languages"
e4c9c075 2110 fi
e1888513
PB		 2111
2112 AC_SUBST(stage1_languages)
b2eaac4a 2113 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
e4c9c075
PB		 2114fi
2115
27079765
AH		 2116# Handle --disable-<component> generically.
2117for dir in $configdirs $build_configdirs $target_configdirs ; do
2118 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
ac9e6043
RW		 2119 varname=`echo $dirname | sed -e s/+/_/g`
2120 if eval test x\${enable_${varname}} "=" xno ; then
27079765
AH		 2121 noconfigdirs="$noconfigdirs $dir"
2122 fi
2123done
2124
43c40f3e
RO		 2125# Check for Boehm's garbage collector
2126AC_ARG_ENABLE(objc-gc,
2127[AS_HELP_STRING([--enable-objc-gc],
2128 [enable use of Boehm's garbage collector with the
114bf3f1
MK		 2129 GNU Objective-C runtime])])
2130AC_ARG_WITH([target-bdw-gc],
2131[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2132 [specify prefix directory for installed bdw-gc package.
2133 Equivalent to --with-target-bdw-gc-include=PATH/include
2134 plus --with-target-bdw-gc-lib=PATH/lib])])
2135AC_ARG_WITH([target-bdw-gc-include],
2136[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2137 [specify directories for installed bdw-gc include files])])
2138AC_ARG_WITH([target-bdw-gc-lib],
2139[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2140 [specify directories for installed bdw-gc library])])
2141
2142case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2143 AC_MSG_CHECKING([for bdw garbage collector])
2144 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
825fba52
MK		 2145 dnl no bdw-gw options, assume default locations
2146 AC_MSG_RESULT([using bdw-gc in default locations])
114bf3f1
MK		 2147 else
2148 dnl bdw-gw options, first error checking, complete checking in libobjc
2149 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2150 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2151 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2152 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2153 else
2154 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2155 fi
2156 fi
43c40f3e
RO		 2157esac
2158
5f520819 2159# Disable libcilkrts, libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
99776ebd 2160case ,${enable_languages}, in
1007a55c
JW		 2161 *,c++,*)
2162 # Disable libcilkrts, libitm, libsanitizer if we're not building libstdc++
2163 case "${noconfigdirs}" in
2164 *target-libstdc++-v3*)
2165 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer"
2166 ;;
2167 *) ;;
2168 esac
2169 ;;
99776ebd 2170 *)
5f520819 2171 noconfigdirs="$noconfigdirs target-libcilkrts target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
99776ebd
RH		 2172 ;;
2173esac
7cd0cf9c 2174
9d069a4f
PB		 2175# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2176# $build_configdirs and $target_configdirs.
e4c9c075
PB		 2177# If we have the source for $noconfigdirs entries, add them to $notsupp.
2178
2179notsupp=""
2180for dir in . $skipdirs $noconfigdirs ; do
9d069a4f 2181 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
e4c9c075
PB		 2182 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2183 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2184 if test -r $srcdir/$dirname/configure ; then
2185 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2186 true
2187 else
2188 notsupp="$notsupp $dir"
2189 fi
2190 fi
2191 fi
9d069a4f
PB		 2192 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2193 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2194 if test -r $srcdir/$dirname/configure ; then
2195 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2196 true
2197 else
2198 notsupp="$notsupp $dir"
2199 fi
2200 fi
2201 fi
e4c9c075
PB		 2202 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2203 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2204 if test -r $srcdir/$dirname/configure ; then
2205 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2206 true
2207 else
2208 notsupp="$notsupp $dir"
2209 fi
2210 fi
2211 fi
2212done
2213
e4c9c075
PB		 2214# Quietly strip out all directories which aren't configurable in this tree.
2215# This relies on all configurable subdirectories being autoconfiscated, which
2216# is now the case.
23f6b2f9
PB		 2217build_configdirs_all="$build_configdirs"
2218build_configdirs=
2219for i in ${build_configdirs_all} ; do
2220 j=`echo $i | sed -e s/build-//g`
2221 if test -f ${srcdir}/$j/configure ; then
2222 build_configdirs="${build_configdirs} $i"
2223 fi
2224done
2225
e4c9c075
PB		 2226configdirs_all="$configdirs"
2227configdirs=
2228for i in ${configdirs_all} ; do
2229 if test -f ${srcdir}/$i/configure ; then
2230 configdirs="${configdirs} $i"
2231 fi
2232done
23f6b2f9 2233
e4c9c075
PB		 2234target_configdirs_all="$target_configdirs"
2235target_configdirs=
2236for i in ${target_configdirs_all} ; do
2237 j=`echo $i | sed -e s/target-//g`
2238 if test -f ${srcdir}/$j/configure ; then
2239 target_configdirs="${target_configdirs} $i"
2240 fi
2241done
2242
45b3824d
TS		 2243# libiberty-linker-plugin is special: it doesn't have its own source directory,
2244# so we have to add it after the preceding checks.
2245if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2246then
2247 case " $configdirs " in
2248 *" libiberty "*)
2249 # If we can build libiberty, we can also build libiberty-linker-plugin.
2250 configdirs="$configdirs libiberty-linker-plugin"
2251 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2252 --with-libiberty=../libiberty-linker-plugin";;
2253 *)
2254 AC_MSG_ERROR([libiberty missing]);;
2255 esac
2256fi
2257
fca38047
TS		 2258# Sometimes we have special requirements for the host libiberty.
2259extra_host_libiberty_configure_flags=
1c01ebf6 2260extra_host_zlib_configure_flags=
fca38047
TS		 2261case " $configdirs " in
2262 *" lto-plugin "* | *" libcc1 "*)
2263 # When these are to be built as shared libraries, the same applies to
2264 # libiberty.
2265 extra_host_libiberty_configure_flags=--enable-shared
2266 ;;
1c01ebf6
L		 2267 *" bfd "*)
2268 # When bfd is to be built as a shared library, the same applies to
2269 # zlib.
2270 if test "$enable_shared" = "yes"; then
2271 extra_host_zlib_configure_flags=--enable-host-shared
2272 fi
2273 ;;
fca38047
TS		 2274esac
2275AC_SUBST(extra_host_libiberty_configure_flags)
1c01ebf6 2276AC_SUBST(extra_host_zlib_configure_flags)
fca38047 2277
e4c9c075
PB		 2278# Produce a warning message for the subdirs we can't configure.
2279# This isn't especially interesting in the Cygnus tree, but in the individual
2280# FSF releases, it's important to let people know when their machine isn't
2281# supported by the one or two programs in a package.
2282
2283if test -n "${notsupp}" && test -z "${norecursion}" ; then
2284 # If $appdirs is non-empty, at least one of those directories must still
2285 # be configured, or we error out. (E.g., if the gas release supports a
2286 # specified target in some subdirs but not the gas subdir, we shouldn't
2287 # pretend that all is well.)
2288 if test -n "$appdirs" ; then
2289 for dir in $appdirs ; do
2290 if test -r $dir/Makefile.in ; then
2291 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2292 appdirs=""
2293 break
2294 fi
23f6b2f9 2295 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
e4c9c075
PB		 2296 appdirs=""
2297 break
2298 fi
2299 fi
2300 done
2301 if test -n "$appdirs" ; then
2302 echo "*** This configuration is not supported by this package." 1>&2
2303 exit 1
2304 fi
2305 fi
2306 # Okay, some application will build, or we don't care to check. Still
2307 # notify of subdirs not getting built.
2308 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2309 echo " ${notsupp}" 1>&2
2310 echo " (Any other directories should still work fine.)" 1>&2
2311fi
2312
2313case "$host" in
2314 *msdosdjgpp*)
2315 enable_gdbtk=no ;;
2316esac
2317
c3a86da9
DJ		 2318# To find our prefix, in gcc_cv_tool_prefix.
2319ACX_TOOL_DIRS
2320
e4c9c075
PB		 2321copy_dirs=
2322
526635cb 2323AC_ARG_WITH([build-sysroot],
33e39b66
AS		 2324 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2325 [use sysroot as the system root during the build])],
526635cb
MM		 2326 [if test x"$withval" != x ; then
2327 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2328 fi],
2329 [SYSROOT_CFLAGS_FOR_TARGET=])
2330AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2331
c8aea42c 2332AC_ARG_WITH([debug-prefix-map],
33e39b66
AS		 2333 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2334 [map A to B, C to D ... in debug information])],
c8aea42c
PB		 2335 [if test x"$withval" != x; then
2336 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2337 for debug_map in $withval; do
2338 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2339 done
2340 fi],
2341 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2342AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2343
1c8bd6a3
PB		 2344# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2345# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2346# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2347# We want to ensure that TARGET libraries (which we know are built with
2348# gcc) are built with "-O2 -g", so include those options when setting
2349# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2350if test "x$CFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2351 if test "x${is_cross_compiler}" = xyes; then
2352 CFLAGS_FOR_TARGET="-g -O2"
2353 else
2354 CFLAGS_FOR_TARGET=$CFLAGS
2355 case " $CFLAGS " in
2356 *" -O2 "*) ;;
2357 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2358 esac
2359 case " $CFLAGS " in
2360 *" -g "* | *" -g3 "*) ;;
2361 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2362 esac
2363 fi
1c8bd6a3
PB		 2364fi
2365AC_SUBST(CFLAGS_FOR_TARGET)
2366
2367if test "x$CXXFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2368 if test "x${is_cross_compiler}" = xyes; then
2369 CXXFLAGS_FOR_TARGET="-g -O2"
2370 else
2371 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2372 case " $CXXFLAGS " in
2373 *" -O2 "*) ;;
2374 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2375 esac
2376 case " $CXXFLAGS " in
2377 *" -g "* | *" -g3 "*) ;;
2378 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2379 esac
2380 fi
1c8bd6a3
PB		 2381fi
2382AC_SUBST(CXXFLAGS_FOR_TARGET)
2383
6f57bdf6
DK		 2384AC_SUBST(LDFLAGS_FOR_TARGET)
2385
e4c9c075
PB		 2386# Handle --with-headers=XXX. If the value is not "yes", the contents of
2387# the named directory are copied to $(tooldir)/sys-include.
2388if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2389 if test x${is_cross_compiler} = xno ; then
2390 echo 1>&2 '***' --with-headers is only supported when cross compiling
2391 exit 1
2392 fi
2393 if test x"${with_headers}" != xyes ; then
c3a86da9 2394 x=${gcc_cv_tool_prefix}
1c710c3c 2395 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
e4c9c075
PB		 2396 fi
2397fi
2398
2399# Handle --with-libs=XXX. If the value is not "yes", the contents of
2400# the name directories are copied to $(tooldir)/lib. Multiple directories
2401# are permitted.
2402if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2403 if test x${is_cross_compiler} = xno ; then
2404 echo 1>&2 '***' --with-libs is only supported when cross compiling
2405 exit 1
2406 fi
2407 if test x"${with_libs}" != xyes ; then
2408 # Copy the libraries in reverse order, so that files in the first named
2409 # library override files in subsequent libraries.
c3a86da9 2410 x=${gcc_cv_tool_prefix}
e4c9c075 2411 for l in ${with_libs}; do
1c710c3c 2412 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
e4c9c075
PB		 2413 done
2414 fi
2415fi
2416
d7f09764 2417# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
e8b05380
PB		 2418#
2419# This is done by determining whether or not the appropriate directory
2420# is available, and by checking whether or not specific configurations
2421# have requested that this magic not happen.
2422#
2423# The command line options always override the explicit settings in
6b1786aa 2424# configure.ac, and the settings in configure.ac override this magic.
e8b05380
PB		 2425#
2426# If the default for a toolchain is to use GNU as and ld, and you don't
2427# want to do that, then you should use the --without-gnu-as and
d7f09764
DN		 2428# --without-gnu-ld options for the configure script. Similarly, if
2429# the default is to use the included zlib and you don't want to do that,
2430# you should use the --with-system-zlib option for the configure script.
e8b05380
PB		 2431
2432if test x${use_gnu_as} = x &&
2433 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2434 with_gnu_as=yes
2435 extra_host_args="$extra_host_args --with-gnu-as"
2436fi
2437
2438if test x${use_gnu_ld} = x &&
5afab7ad 2439 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
e8b05380
PB		 2440 with_gnu_ld=yes
2441 extra_host_args="$extra_host_args --with-gnu-ld"
2442fi
2443
d7f09764
DN		 2444if test x${use_included_zlib} = x &&
2445 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2446 :
2447else
2448 with_system_zlib=yes
2449 extra_host_args="$extra_host_args --with-system-zlib"
2450fi
2451
e8b05380
PB		 2452# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2453# can detect this case.
2454
2455if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2456 with_newlib=yes
2457 extra_host_args="$extra_host_args --with-newlib"
2458fi
2459
e4c9c075
PB		 2460# Handle ${copy_dirs}
2461set fnord ${copy_dirs}
2462shift
2463while test $# != 0 ; do
2464 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2465 :
2466 else
2467 echo Copying $1 to $2
2468
2469 # Use the install script to create the directory and all required
2470 # parent directories.
2471 if test -d $2 ; then
2472 :
2473 else
2474 echo >config.temp
2475 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2476 fi
2477
2478 # Copy the directory, assuming we have tar.
2479 # FIXME: Should we use B in the second tar? Not all systems support it.
2480 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2481
2482 # It is the responsibility of the user to correctly adjust all
2483 # symlinks. If somebody can figure out how to handle them correctly
2484 # here, feel free to add the code.
2485
2486 echo $1 > $2/COPIED
2487 fi
2488 shift; shift
2489done
2490
e8b05380
PB		 2491# Determine a target-dependent exec_prefix that the installed
2492# gcc will search in. Keep this list sorted by triplet, with
2493# the *-*-osname triplets last.
2494md_exec_prefix=
2495case "${target}" in
30b74385 2496 i[[34567]]86-pc-msdosdjgpp*)
e8b05380
PB		 2497 md_exec_prefix=/dev/env/DJDIR/bin
2498 ;;
e8b05380 2499 *-*-hpux* | \
e8b05380 2500 *-*-nto-qnx* | \
6de66370 2501 *-*-solaris2*)
e8b05380
PB		 2502 md_exec_prefix=/usr/ccs/bin
2503 ;;
2504esac
2505
4977bab6
ZW		 2506extra_arflags_for_target=
2507extra_nmflags_for_target=
2a726918 2508extra_ranlibflags_for_target=
671aa708 2509target_makefile_frag=/dev/null
55380b08 2510case "${target}" in
58e24147
AM		 2511 spu-*-*)
2512 target_makefile_frag="config/mt-spu"
2513 ;;
74ae587e 2514 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
4bf6c438
RS		 2515 target_makefile_frag="config/mt-sde"
2516 ;;
1ec3b87b
RS		 2517 mipsisa*-*-elfoabi*)
2518 target_makefile_frag="config/mt-mips-elfoabi"
2519 ;;
08d0963a
RS		 2520 mips*-*-*linux* | mips*-*-gnu*)
2521 target_makefile_frag="config/mt-mips-gnu"
2522 ;;
707f1839
SL		 2523 nios2-*-elf*)
2524 target_makefile_frag="config/mt-nios2-elf"
2525 ;;
76052545
EB		 2526 *-*-linux-android*)
2527 target_makefile_frag="config/mt-android"
2528 ;;
416ac4d4 2529 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
98a5bb3b 2530 target_makefile_frag="config/mt-gnu"
55380b08 2531 ;;
671aa708 2532 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
4977bab6
ZW		 2533 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2534 # commands to handle both 32-bit and 64-bit objects. These flags are
2535 # harmless if we're using GNU nm or ar.
2536 extra_arflags_for_target=" -X32_64"
2537 extra_nmflags_for_target=" -B -X32_64"
55380b08 2538 ;;
c3b7d169
NN		 2539esac
2540
671aa708 2541alphaieee_frag=/dev/null
c3b7d169
NN		 2542case $target in
2543 alpha*-*-*)
2544 # This just makes sure to use the -mieee option to build target libs.
2545 # This should probably be set individually by each library.
2546 alphaieee_frag="config/mt-alphaieee"
55380b08
NN		 2547 ;;
2548esac
701afd4d 2549
55380b08
NN		 2550# If --enable-target-optspace always use -Os instead of -O2 to build
2551# the target libraries, similarly if it is not specified, use -Os
2552# on selected platforms.
671aa708 2553ospace_frag=/dev/null
55380b08
NN		 2554case "${enable_target_optspace}:${target}" in
2555 yes:*)
c3b7d169 2556 ospace_frag="config/mt-ospace"
55380b08
NN		 2557 ;;
2558 :d30v-*)
c3b7d169 2559 ospace_frag="config/mt-d30v"
55380b08 2560 ;;
d9063947 2561 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
c3b7d169 2562 ospace_frag="config/mt-ospace"
55380b08
NN		 2563 ;;
2564 no:* | :*)
2565 ;;
2566 *)
2567 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2568 ;;
2569esac
6599da04 2570
671aa708
NN		 2571# Some systems (e.g., one of the i386-aix systems the gas testers are
2572# using) don't handle "\$" correctly, so don't use it here.
1c710c3c 2573tooldir='${exec_prefix}'/${target_noncanonical}
671aa708
NN		 2574build_tooldir=${tooldir}
2575
671aa708
NN		 2576# Create a .gdbinit file which runs the one in srcdir
2577# and tells GDB to look there for source files.
2578
2579if test -r ${srcdir}/.gdbinit ; then
2580 case ${srcdir} in
2581 .) ;;
2582 *) cat > ./.gdbinit <<EOF
2583# ${NO_EDIT}
2584dir ${srcdir}
2585dir .
2586source ${srcdir}/.gdbinit
2587EOF
2588 ;;
2589 esac
2590fi
2591
6599da04
JM		 2592# Make sure that the compiler is able to generate an executable. If it
2593# can't, we are probably in trouble. We don't care whether we can run the
2594# executable--we might be using a cross compiler--we only care whether it
2595# can be created. At this point the main configure script has set CC.
aeaa0f2f 2596we_are_ok=no
6599da04
JM		 2597echo "int main () { return 0; }" > conftest.c
2598${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
aeaa0f2f
NN		 2599if test $? = 0 ; then
2600 if test -s conftest || test -s conftest.exe ; then
2601 we_are_ok=yes
2602 fi
2603fi
2604case $we_are_ok in
2605 no)
2606 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2607 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2608 rm -f conftest*
2609 exit 1
2610 ;;
2611esac
6599da04
JM		 2612rm -f conftest*
2613
d89f0ad6 2614# Decide which environment variable is used to find dynamic libraries.
fe3d5b7f
NN		 2615case "${host}" in
2616 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
111eeb6e 2617 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
d89f0ad6 2618 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
fe3d5b7f
NN		 2619 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2620esac
fe3d5b7f 2621
d89f0ad6
AL		 2622# On systems where the dynamic library environment variable is PATH,
2623# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2624# built executables to PATH.
2625if test "$RPATH_ENVVAR" = PATH; then
2626 GCC_SHLIB_SUBDIR=/shlib
2627else
2628 GCC_SHLIB_SUBDIR=
2629fi
2630
beeda1d9
JJ		 2631# Adjust the toplevel makefile according to whether bootstrap was selected.
2632case $enable_bootstrap in
2633 yes)
2634 bootstrap_suffix=bootstrap
2635 BUILD_CONFIG=bootstrap-debug
2636 ;;
2637 no)
2638 bootstrap_suffix=no-bootstrap
2639 BUILD_CONFIG=
2640 ;;
2641esac
2642
2643AC_MSG_CHECKING(for default BUILD_CONFIG)
2644
2645AC_ARG_WITH([build-config],
2646 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2647 [use config/NAME.mk build configuration])],
2648 [case $with_build_config in
2649 yes) with_build_config= ;;
2650 no) with_build_config= BUILD_CONFIG= ;;
2651 esac])
2652
2653if test "x${with_build_config}" != x; then
2654 BUILD_CONFIG=$with_build_config
2655else
2656 case $BUILD_CONFIG in
2657 bootstrap-debug)
2658 if echo "int f (void) { return 0; }" > conftest.c &&
2659 ${CC} -c conftest.c &&
2660 mv conftest.o conftest.o.g0 &&
2661 ${CC} -c -g conftest.c &&
2662 mv conftest.o conftest.o.g &&
2663 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2664 :
2665 else
2666 BUILD_CONFIG=
2667 fi
2668 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2669 ;;
2670 esac
2671fi
2672AC_MSG_RESULT($BUILD_CONFIG)
2673AC_SUBST(BUILD_CONFIG)
2674
2675# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2676AC_MSG_CHECKING([for --enable-vtable-verify])
2677AC_ARG_ENABLE(vtable-verify,
318a4e6d
MF		 2678[AS_HELP_STRING([--enable-vtable-verify],
2679 [Enable vtable verification feature])],
beeda1d9
JJ		 2680[case "$enableval" in
2681 yes) enable_vtable_verify=yes ;;
2682 no) enable_vtable_verify=no ;;
2683 *) enable_vtable_verify=no;;
2684 esac],
2685[enable_vtable_verify=no])
2686AC_MSG_RESULT($enable_vtable_verify)
2687
4977bab6
ZW		 2688# Record target_configdirs and the configure arguments for target and
2689# build configuration in Makefile.
2690target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
23f6b2f9 2691build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
9e1c8fc1 2692bootstrap_fixincludes=no
4977bab6 2693
ad1e5170
JR		 2694# If we are building libgomp, bootstrap it.
2695if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2696 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2697fi
2698
beeda1d9
JJ		 2699# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2700# or bootstrap-ubsan, bootstrap it.
2701if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2702 case "$BUILD_CONFIG" in
2703 *bootstrap-asan* | *bootstrap-ubsan* )
2704 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
9e1c8fc1 2705 bootstrap_fixincludes=yes
beeda1d9
JJ		 2706 ;;
2707 esac
ac8701fe
L		 2708fi
2709
beeda1d9
JJ		 2710# If we are building libvtv and --enable-vtable-verify, bootstrap it.
2711if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2712 test "$enable_vtable_verify" != no; then
2077db1b
CT		 2713 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2714fi
2715
c21fdaa1
JJ		 2716# If we are building libmpx and $BUILD_CONFIG contains bootstrap-mpx,
2717# bootstrap it.
5373cd33 2718if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then
c21fdaa1
JJ		 2719 case "$BUILD_CONFIG" in
2720 *bootstrap-mpx* )
2721 bootstrap_target_libs=${bootstrap_target_libs}target-libmpx,
2722 ;;
2723 esac
5373cd33
IE		 2724fi
2725
4977bab6
ZW		 2726# Determine whether gdb needs tk/tcl or not.
2727# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2728# and in that case we want gdb to be built without tk. Ugh!
2729# In fact I believe gdb is the *only* package directly dependent on tk,
2730# so we should be able to put the 'maybe's in unconditionally and
2731# leave out the maybe dependencies when enable_gdbtk is false. I'm not
2732# 100% sure that that's safe though.
e914a571 2733
b4f96efe 2734gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
4977bab6
ZW		 2735case "$enable_gdbtk" in
2736 no)
2737 GDB_TK="" ;;
e914a571
AC		 2738 yes)
2739 GDB_TK="${gdb_tk}" ;;
4977bab6 2740 *)
e914a571
AC		 2741 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2742 # distro. Eventually someone will fix this and move Insight, nee
2743 # gdbtk to a separate directory.
2744 if test -d ${srcdir}/gdb/gdbtk ; then
2745 GDB_TK="${gdb_tk}"
2746 else
2747 GDB_TK=""
2748 fi
2749 ;;
4977bab6 2750esac
ef9db8d5
DJ		 2751CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2752INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
4977bab6 2753
60975492 2754# Strip out unwanted targets.
8b87bb96
NN		 2755
2756# While at that, we remove Makefiles if we were started for recursive
2757# configuration, so that the top-level Makefile reconfigures them,
2758# like we used to do when configure itself was recursive.
8b87bb96 2759
3e54529c
RW		 2760# Loop over modules. We used to use the "$extrasub" feature from Autoconf
2761# but now we're fixing up the Makefile ourselves with the additional
2762# commands passed to AC_CONFIG_FILES. Use separate variables
2763# extrasub-{build,host,target} not because there is any reason to split
2764# the substitutions up that way, but only to remain below the limit of
2765# 99 commands in a script, for HP-UX sed.
2766# Do not nest @if/@endif pairs, because configure will not warn you at all.
8b87bb96 2767
79cd2b23
RW		 2768case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2769 yes:yes:*\ gold\ *:*,c++,*) ;;
2770 yes:yes:*\ gold\ *:*)
2771 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2772 ;;
2773esac
2774
3e54529c 2775extrasub_build=
23f6b2f9 2776for module in ${build_configdirs} ; do
8b87bb96
NN		 2777 if test -z "${no_recursion}" \
2778 && test -f ${build_subdir}/${module}/Makefile; then
2779 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2780 rm -f ${build_subdir}/${module}/Makefile
2781 fi
3e54529c 2782 extrasub_build="$extrasub_build
60975492 2783/^@if build-$module\$/d
5607edfd
PB		 2784/^@endif build-$module\$/d
2785/^@if build-$module-$bootstrap_suffix\$/d
2786/^@endif build-$module-$bootstrap_suffix\$/d"
8b87bb96 2787done
3e54529c 2788extrasub_host=
8b87bb96 2789for module in ${configdirs} ; do
a6fbc1e2 2790 if test -z "${no_recursion}"; then
f063a9ed 2791 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
a6fbc1e2
AS		 2792 if test -f ${file}; then
2793 echo 1>&2 "*** removing ${file} to force reconfigure"
2794 rm -f ${file}
2795 fi
2796 done
8b87bb96 2797 fi
9e1c8fc1
JJ		 2798 case ${module},${bootstrap_fixincludes} in
2799 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2800 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2801 esac
3e54529c 2802 extrasub_host="$extrasub_host
60975492 2803/^@if $module\$/d
5607edfd 2804/^@endif $module\$/d
9e1c8fc1
JJ		 2805/^@if $module-$host_bootstrap_suffix\$/d
2806/^@endif $module-$host_bootstrap_suffix\$/d"
8b87bb96 2807done
3e54529c 2808extrasub_target=
8b87bb96
NN		 2809for module in ${target_configdirs} ; do
2810 if test -z "${no_recursion}" \
2811 && test -f ${target_subdir}/${module}/Makefile; then
2812 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2813 rm -f ${target_subdir}/${module}/Makefile
2814 fi
00020c16
ILT		 2815
2816 # We only bootstrap target libraries listed in bootstrap_target_libs.
2817 case $bootstrap_target_libs in
2818 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2819 *) target_bootstrap_suffix=no-bootstrap ;;
2820 esac
2821
3e54529c 2822 extrasub_target="$extrasub_target
60975492 2823/^@if target-$module\$/d
5607edfd 2824/^@endif target-$module\$/d
00020c16
ILT		 2825/^@if target-$module-$target_bootstrap_suffix\$/d
2826/^@endif target-$module-$target_bootstrap_suffix\$/d"
4977bab6 2827done
f516a7da 2828
3e54529c
RW		 2829# Do the final fixup along with target modules.
2830extrasub_target="$extrasub_target
60975492 2831/^@if /,/^@endif /d"
4977bab6
ZW		 2832
2833# Create the serialization dependencies. This uses a temporary file.
2834
ade82b16 2835AC_ARG_ENABLE([serial-configure],
33e39b66
AS		 2836[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2837 [force sequential configuration of
2838 sub-packages for the host, target or build
2839 machine, or all sub-packages])])
bf1d3e81
NN		 2840
2841case ${enable_serial_configure} in
2842 yes)
2843 enable_serial_build_configure=yes
2844 enable_serial_host_configure=yes
2845 enable_serial_target_configure=yes
2846 ;;
2847esac
ade82b16 2848
4977bab6
ZW		 2849# These force 'configure's to be done one at a time, to avoid problems
2850# with contention over a shared config.cache.
2851rm -f serdep.tmp
ade82b16 2852echo '# serdep.tmp' > serdep.tmp
4977bab6 2853olditem=
bf1d3e81 2854test "x${enable_serial_build_configure}" = xyes &&
4977bab6
ZW		 2855for item in ${build_configdirs} ; do
2856 case ${olditem} in
2857 "") ;;
ade82b16 2858 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2859 esac
2860 olditem=${item}
2861done
2862olditem=
bf1d3e81 2863test "x${enable_serial_host_configure}" = xyes &&
4977bab6
ZW		 2864for item in ${configdirs} ; do
2865 case ${olditem} in
2866 "") ;;
ade82b16 2867 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2868 esac
2869 olditem=${item}
2870done
2871olditem=
bf1d3e81 2872test "x${enable_serial_target_configure}" = xyes &&
4977bab6
ZW		 2873for item in ${target_configdirs} ; do
2874 case ${olditem} in
2875 "") ;;
ade82b16 2876 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2877 esac
2878 olditem=${item}
2879done
671aa708
NN		 2880serialization_dependencies=serdep.tmp
2881AC_SUBST_FILE(serialization_dependencies)
fe3d5b7f 2882
ade82b16 2883# Base args. Strip norecursion, cache-file, srcdir, host, build,
1c710c3c 2884# target, nonopt, and variable assignments. These are the ones we
f1a036e4
NC		 2885# might not want to pass down to subconfigures. The exception being
2886# --cache-file=/dev/null, which is used to turn off the use of cache
2887# files altogether, and which should be passed on to subconfigures.
2888# Also strip program-prefix, program-suffix, and program-transform-name,
2889# so that we can pass down a consistent program-transform-name.
1c710c3c 2890baseargs=
29a63921 2891tbaseargs=
1c710c3c
DJ		 2892keep_next=no
2893skip_next=no
2894eval "set -- $ac_configure_args"
44bfc3ac
DJ		 2895for ac_arg
2896do
1c710c3c
DJ		 2897 if test X"$skip_next" = X"yes"; then
2898 skip_next=no
2899 continue
2900 fi
2901 if test X"$keep_next" = X"yes"; then
2902 case $ac_arg in
2903 *\'*)
2904 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2905 esac
2906 baseargs="$baseargs '$ac_arg'"
29a63921 2907 tbaseargs="$tbaseargs '$ac_arg'"
1c710c3c
DJ		 2908 keep_next=no
2909 continue
2910 fi
2911
2912 # Handle separated arguments. Based on the logic generated by
2913 # autoconf 2.59.
2914 case $ac_arg in
2915 *=* | --config-cache | -C | -disable-* | --disable-* \
2916 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2917 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2918 | -with-* | --with-* | -without-* | --without-* | --x)
2919 separate_arg=no
2920 ;;
2921 -*)
2922 separate_arg=yes
2923 ;;
2924 *)
2925 separate_arg=no
2926 ;;
2927 esac
2928
29a63921
AO		 2929 skip_targ=no
2930 case $ac_arg in
2931changequote(,)
2932 --with-* | --without-*)
2933 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2934
2935 case $libopt in
2936 *[-_]include)
2937 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2938 ;;
2939 *[-_]lib)
2940 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2941 ;;
2942 *)
2943 lib=$libopt
2944 ;;
2945 esac
2946changequote([,])
2947
2948 case $lib in
4a9bb2aa 2949 mpc | mpfr | gmp | isl)
29a63921
AO		 2950 # If we're processing --with-$lib, --with-$lib-include or
2951 # --with-$lib-lib, for one of the libs above, and target is
2952 # different from host, don't pass the current argument to any
2953 # target library's configure.
2954 if test x$is_cross_compiler = xyes; then
2955 skip_targ=yes
2956 fi
2957 ;;
2958 esac
2959 ;;
2960 esac
2961
1c710c3c 2962 case "$ac_arg" in
f1a036e4
NC		 2963 --cache-file=/dev/null | \
2964 -cache-file=/dev/null )
2965 # Handled here to avoid the test to skip args below.
2966 baseargs="$baseargs '$ac_arg'"
29a63921 2967 tbaseargs="$tbaseargs '$ac_arg'"
f1a036e4
NC		 2968 # Assert: $separate_arg should always be no.
2969 keep_next=$separate_arg
2970 ;;
1c710c3c
DJ		 2971 --no*)
2972 continue
2973 ;;
2974 --c* | \
2975 --sr* | \
2976 --ho* | \
2977 --bu* | \
2978 --t* | \
2979 --program-* | \
2980 -cache_file* | \
2981 -srcdir* | \
2982 -host* | \
2983 -build* | \
2984 -target* | \
2985 -program-prefix* | \
2986 -program-suffix* | \
2987 -program-transform-name* )
2988 skip_next=$separate_arg
2989 continue
2990 ;;
2991 -*)
2992 # An option. Add it.
2993 case $ac_arg in
2994 *\'*)
2995 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2996 esac
2997 baseargs="$baseargs '$ac_arg'"
29a63921
AO		 2998 if test X"$skip_targ" = Xno; then
2999 tbaseargs="$tbaseargs '$ac_arg'"
3000 fi
1c710c3c
DJ		 3001 keep_next=$separate_arg
3002 ;;
3003 *)
3004 # Either a variable assignment, or a nonopt (triplet). Don't
3005 # pass it down; let the Makefile handle this.
3006 continue
3007 ;;
3008 esac
3009done
3010# Remove the initial space we just introduced and, as these will be
3011# expanded by make, quote '$'.
3012baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
6599da04 3013
43bb47c2
DJ		 3014# Add in --program-transform-name, after --program-prefix and
3015# --program-suffix have been applied to it. Autoconf has already
3016# doubled dollar signs and backslashes in program_transform_name; we want
3017# the backslashes un-doubled, and then the entire thing wrapped in single
3018# quotes, because this will be expanded first by make and then by the shell.
3019# Also, because we want to override the logic in subdir configure scripts to
3020# choose program_transform_name, replace any s,x,x, with s,y,y,.
3021sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3022${program_transform_name}
3023EOF_SED
3024gcc_transform_name=`cat conftestsed.out`
3025rm -f conftestsed.out
3026baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
29a63921 3027tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
d9acb717
RW		 3028if test "$silent" = yes; then
3029 baseargs="$baseargs --silent"
29a63921 3030 tbaseargs="$tbaseargs --silent"
d9acb717 3031fi
0115d4a3 3032baseargs="$baseargs --disable-option-checking"
29a63921 3033tbaseargs="$tbaseargs --disable-option-checking"
43bb47c2 3034
ffedf511
RW		 3035# Record and document user additions to sub configure arguments.
3036AC_ARG_VAR([build_configargs],
3037 [additional configure arguments for build directories])
3038AC_ARG_VAR([host_configargs],
3039 [additional configure arguments for host directories])
3040AC_ARG_VAR([target_configargs],
3041 [additional configure arguments for target directories])
3042
e490616e
ZW		 3043# For the build-side libraries, we just need to pretend we're native,
3044# and not use the same cache file. Multilibs are neither needed nor
3d96b0d0
HPN		 3045# desired. We can't even use the same cache file for all build-side
3046# libraries, as they're compiled differently; some with C, some with
3047# C++ or with different feature-enabling options.
3048build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
e254d6b5 3049
4977bab6
ZW		 3050# For host modules, accept cache file option, or specification as blank.
3051case "${cache_file}" in
3052"") # empty
3053 cache_file_option="" ;;
671aa708 3054/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
4977bab6
ZW		 3055 cache_file_option="--cache-file=${cache_file}" ;;
3056*) # relative path
3057 cache_file_option="--cache-file=../${cache_file}" ;;
3058esac
3059
09438bde
NN		 3060# Host dirs don't like to share a cache file either, horribly enough.
3061# This seems to be due to autoconf 2.5x stupidity.
ffedf511 3062host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
4977bab6 3063
29a63921 3064target_configargs="$target_configargs ${tbaseargs}"
e490616e 3065
6599da04
JM		 3066# Passing a --with-cross-host argument lets the target libraries know
3067# whether they are being built with a cross-compiler or being built
3068# native. However, it would be better to use other mechanisms to make the
3069# sorts of decisions they want to make on this basis. Please consider
3070# this option to be deprecated. FIXME.
aeaa0f2f 3071if test x${is_cross_compiler} = xyes ; then
1c710c3c 3072 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
6599da04
JM		 3073fi
3074
79e0604d
FXC		 3075# Special user-friendly check for native x86_64-linux build, if
3076# multilib is not explicitly enabled.
3077case "$target:$have_compiler:$host:$target:$enable_multilib" in
3078 x86_64-*linux*:yes:$build:$build:)
e640447c 3079 # Make sure we have a development environment that handles 32-bit
79e0604d
FXC		 3080 dev64=no
3081 echo "int main () { return 0; }" > conftest.c
3082 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3083 if test $? = 0 ; then
3084 if test -s conftest || test -s conftest.exe ; then
3085 dev64=yes
3086 fi
3087 fi
3088 rm -f conftest*
3089 if test x${dev64} != xyes ; then
e640447c 3090 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.])
79e0604d
FXC		 3091 fi
3092 ;;
3093esac
3094
dc683a3f
RW		 3095# Default to --enable-multilib.
3096if test x${enable_multilib} = x ; then
3fedb745 3097 target_configargs="--enable-multilib ${target_configargs}"
dc683a3f 3098fi
6599da04 3099
5d4a5ee6
JL		 3100# Pass --with-newlib if appropriate. Note that target_configdirs has
3101# changed from the earlier setting of with_newlib.
aeaa0f2f 3102if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3fedb745 3103 target_configargs="--with-newlib ${target_configargs}"
5d4a5ee6
JL		 3104fi
3105
6b9eb62c
NN		 3106# Different target subdirs use different values of certain variables
3107# (notably CXX). Worse, multilibs use *lots* of different values.
3108# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3109# it doesn't automatically accept command-line overrides of them.
3110# This means it's not safe for target subdirs to share a cache file,
3111# which is disgusting, but there you have it. Hopefully this can be
3112# fixed in future. It's still worthwhile to use a cache file for each
3113# directory. I think.
3114
bebcd931
MS		 3115# Pass the appropriate --build, --host, --target and --cache-file arguments.
3116# We need to pass --target, as newer autoconf's requires consistency
3117# for target_alias and gcc doesn't manage it consistently.
e69bf64b 3118target_configargs="--cache-file=./config.cache ${target_configargs}"
e490616e 3119
b87487b6 3120FLAGS_FOR_TARGET=
bb654703 3121case " $target_configdirs " in
7965440a 3122 *" newlib "*)
3fedb745 3123 case " $target_configargs " in
7965440a 3124 *" --with-newlib "*)
b87487b6 3125 case "$target" in
5d571eaa 3126 *-cygwin*)
443e6238 3127 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
5d571eaa 3128 ;;
b87487b6
AO		 3129 esac
3130
afd7db25 3131 # If we're not building GCC, don't discard standard headers.
ef40bc65 3132 if test -d ${srcdir}/gcc; then
d4eb109c 3133 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
afd7db25
AO		 3134
3135 if test "${build}" != "${host}"; then
3136 # On Canadian crosses, CC_FOR_TARGET will have already been set
3137 # by `configure', so we won't have an opportunity to add -Bgcc/
3138 # to it. This is right: we don't want to search that directory
3139 # for binaries, but we want the header files in there, so add
3140 # them explicitly.
0463992b 3141 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
afd7db25
AO		 3142
3143 # Someone might think of using the pre-installed headers on
3144 # Canadian crosses, in case the installed compiler is not fully
3145 # compatible with the compiler being built. In this case, it
3146 # would be better to flag an error than risking having
3147 # incompatible object files being constructed. We can't
3148 # guarantee that an error will be flagged, but let's hope the
3149 # compiler will do it, when presented with incompatible header
3150 # files.
3151 fi
d4eb109c
AO		 3152 fi
3153
ab50d72b 3154 case "${target}-${is_cross_compiler}" in
f2a0e225 3155 i[[3456789]]86-*-linux*-no)
ab50d72b
DD		 3156 # Here host == target, so we don't need to build gcc,
3157 # so we don't want to discard standard headers.
3158 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
ab50d72b
DD		 3159 ;;
3160 *)
3161 # If we're building newlib, use its generic headers last, but search
3162 # for any libc-related directories first (so make it the last -B
3163 # switch).
3164 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
c03353e2
RIL		 3165
3166 # If we're building libgloss, find the startup file, simulator library
3167 # and linker script.
3168 case " $target_configdirs " in
3169 *" libgloss "*)
3170 # Look for startup file, simulator library and maybe linker script.
3171 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3172 # Look for libnosys.a in case the target needs it.
3173 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3174 # Most targets have the linker script in the source directory.
3175 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3176 ;;
3177 esac
ab50d72b
DD		 3178 ;;
3179 esac
b87487b6 3180 ;;
7965440a
AO		 3181 esac
3182 ;;
b87487b6 3183esac
5d571eaa 3184
b91f0a41 3185case "$target" in
5d571eaa
OS		 3186 x86_64-*mingw* | *-w64-mingw*)
3187 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3188 # however, use a symlink named 'mingw' in ${prefix} .
3189 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3190 ;;
3191 *-mingw*)
3192 # MinGW can't be handled as Cygwin above since it does not use newlib.
3193 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3194 ;;
b91f0a41 3195esac
d4eb109c 3196
6691a79e
ME		 3197# Allow the user to override the flags for
3198# our build compiler if desired.
f019adc1
MF		 3199if test x"${build}" = x"${host}" ; then
3200 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3201 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3202 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3203fi
6691a79e 3204
d4eb109c
AO		 3205# On Canadian crosses, we'll be searching the right directories for
3206# the previously-installed cross compiler, so don't bother to add
3207# flags for directories within the install tree of the compiler
3208# being built; programs in there won't even run.
ef40bc65 3209if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
b87487b6 3210 # Search for pre-installed headers if nothing else fits.
9124bc53 3211 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
b87487b6 3212fi
d4eb109c 3213
bb654703 3214if test "x${use_gnu_ld}" = x &&
55380b08 3215 echo " ${configdirs} " | grep " ld " > /dev/null ; then
b87487b6 3216 # Arrange for us to find uninstalled linker scripts.
215c351a 3217 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
b87487b6
AO		 3218fi
3219
e88a2c09
DD		 3220# Search for other target-specific linker scripts and such.
3221case "${target}" in
3e19841a
PB		 3222 mep*)
3223 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3224 ;;
e88a2c09
DD		 3225esac
3226
671aa708 3227# Makefile fragments.
7b61653a
PE		 3228for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3229do
3230 eval fragval=\$$frag
3231 if test $fragval != /dev/null; then
3232 eval $frag=${srcdir}/$fragval
3233 fi
3234done
671aa708
NN		 3235AC_SUBST_FILE(host_makefile_frag)
3236AC_SUBST_FILE(target_makefile_frag)
3237AC_SUBST_FILE(alphaieee_frag)
3238AC_SUBST_FILE(ospace_frag)
3239
3240# Miscellanea: directories, flags, etc.
671aa708 3241AC_SUBST(RPATH_ENVVAR)
d89f0ad6 3242AC_SUBST(GCC_SHLIB_SUBDIR)
671aa708
NN		 3243AC_SUBST(tooldir)
3244AC_SUBST(build_tooldir)
ef9db8d5 3245AC_SUBST(CONFIGURE_GDB_TK)
671aa708 3246AC_SUBST(GDB_TK)
ef9db8d5 3247AC_SUBST(INSTALL_GDB_TK)
671aa708
NN		 3248
3249# Build module lists & subconfigure args.
671aa708 3250AC_SUBST(build_configargs)
23f6b2f9 3251AC_SUBST(build_configdirs)
671aa708
NN		 3252
3253# Host module lists & subconfigure args.
3254AC_SUBST(host_configargs)
3255AC_SUBST(configdirs)
aae29963 3256AC_SUBST(target_configdirs)
671aa708
NN		 3257
3258# Target module lists & subconfigure args.
671aa708 3259AC_SUBST(target_configargs)
ee2312f3 3260
671aa708
NN		 3261
3262# Build tools.
0999159b
PB		 3263AC_SUBST(AR_FOR_BUILD)
3264AC_SUBST(AS_FOR_BUILD)
671aa708 3265AC_SUBST(CC_FOR_BUILD)
0999159b
PB		 3266AC_SUBST(CFLAGS_FOR_BUILD)
3267AC_SUBST(CXXFLAGS_FOR_BUILD)
3268AC_SUBST(CXX_FOR_BUILD)
3269AC_SUBST(DLLTOOL_FOR_BUILD)
0999159b 3270AC_SUBST(GFORTRAN_FOR_BUILD)
632e2a07 3271AC_SUBST(GOC_FOR_BUILD)
0999159b
PB		 3272AC_SUBST(LDFLAGS_FOR_BUILD)
3273AC_SUBST(LD_FOR_BUILD)
3274AC_SUBST(NM_FOR_BUILD)
3275AC_SUBST(RANLIB_FOR_BUILD)
3276AC_SUBST(WINDMC_FOR_BUILD)
3277AC_SUBST(WINDRES_FOR_BUILD)
671aa708 3278
2abefe3d
PB		 3279# Generate default definitions for YACC, M4, LEX and other programs that run
3280# on the build machine. These are used if the Makefile can't locate these
3281# programs in objdir.
3282MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3283
3284AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3285case " $build_configdirs " in
3286 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2abefe3d
PB		 3287esac
3288
3289AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3290case " $build_configdirs " in
3291 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3292esac
3293
3294AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3295case " $build_configdirs " in
3296 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3297esac
3298
3299AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3300case " $build_configdirs " in
3301 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3302 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3303esac
3304
3305AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3306case " $build_configdirs " in
3307 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3308esac
3309
3310AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3311case " $build_configdirs " in
3312 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3313 *)
3314changequote(,)
d18ff35a 3315 # For an installed makeinfo, we require it to be from texinfo 4.7 or
2abefe3d
PB		 3316 # higher, else we use the "missing" dummy.
3317 if ${MAKEINFO} --version \
d18ff35a 3318 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
2abefe3d
PB		 3319 :
3320 else
3321 MAKEINFO="$MISSING makeinfo"
3322 fi
3323 ;;
3324changequote([,])
3325esac
3326
3327# FIXME: expect and dejagnu may become build tools?
3328
3329AC_CHECK_PROGS(EXPECT, expect, expect)
3330case " $configdirs " in
3331 *" expect "*)
3332 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3333 ;;
3334esac
3335
3336AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3337case " $configdirs " in
3338 *" dejagnu "*)
c394e891 3339 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2abefe3d
PB		 3340 ;;
3341esac
3342
3343
671aa708 3344# Host tools.
2693c0b0
PB		 3345NCN_STRICT_CHECK_TOOLS(AR, ar)
3346NCN_STRICT_CHECK_TOOLS(AS, as)
3347NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3348NCN_STRICT_CHECK_TOOLS(LD, ld)
2abefe3d 3349NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2693c0b0 3350NCN_STRICT_CHECK_TOOLS(NM, nm)
8927b7c0
RO		 3351NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3352NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
2693c0b0 3353NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
901119ae 3354NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
2693c0b0
PB		 3355NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3356NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
e7a82751 3357NCN_STRICT_CHECK_TOOLS(READELF, readelf)
671aa708
NN		 3358AC_SUBST(CC)
3359AC_SUBST(CXX)
3360AC_SUBST(CFLAGS)
3361AC_SUBST(CXXFLAGS)
671aa708 3362
2abefe3d 3363# Target tools.
e8b05380 3364AC_ARG_WITH([build-time-tools],
33e39b66
AS		 3365 [AS_HELP_STRING([--with-build-time-tools=PATH],
3366 [use given path to find target tools during the build])],
e8b05380
PB		 3367 [case x"$withval" in
3368 x/*) ;;
3369 *)
3370 with_build_time_tools=
3371 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3372 ;;
3373 esac],
3374 [with_build_time_tools=])
3375
2693c0b0
PB		 3376NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3377NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2693c0b0 3378NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2693c0b0 3379NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
632e2a07 3380NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
e8b05380
PB		 3381
3382ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3383ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3384ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3385ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3386ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3387ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
9bccfdf5 3388ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
e8b05380 3389ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
8927b7c0 3390ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
e7a82751 3391ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
e8b05380
PB		 3392ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3393ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
901119ae 3394ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
4de997d1 3395
2abefe3d
PB		 3396RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3397
3398GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3399GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3400GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
b3f122e0 3401dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
2abefe3d 3402GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2077db1b 3403 [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],
2abefe3d
PB		 3404 c++)
3405GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2077db1b 3406 [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],
2abefe3d
PB		 3407 c++)
3408GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3409GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2abefe3d
PB		 3410GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3411 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
632e2a07
ILT		 3412GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3413 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
2abefe3d
PB		 3414GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3415GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3416GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
ec8fd1c0 3417GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
2abefe3d
PB		 3418GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3419GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
e7a82751 3420GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
455c8f48 3421GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
2abefe3d 3422GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
901119ae 3423GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
4de997d1 3424
2abefe3d 3425AC_SUBST(FLAGS_FOR_TARGET)
4de997d1 3426AC_SUBST(RAW_CXX_FOR_TARGET)
be912515 3427
671aa708
NN		 3428# Certain tools may need extra flags.
3429AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3430RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3431NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
6599da04 3432
2abefe3d
PB		 3433# When building target libraries, except in a Canadian cross, we use
3434# the same toolchain as the compiler we just built.
3435COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3436COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3437COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3438if test $host = $build; then
3439 case " $configdirs " in
3440 *" gcc "*)
3441 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3442 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3443 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3444 ;;
3445 esac
3446fi
3447
3448AC_SUBST(COMPILER_AS_FOR_TARGET)
3449AC_SUBST(COMPILER_LD_FOR_TARGET)
3450AC_SUBST(COMPILER_NM_FOR_TARGET)
3451
ee03dc5e
AO		 3452AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3453AC_ARG_ENABLE(maintainer-mode,
33e39b66
AS		 3454[AS_HELP_STRING([--enable-maintainer-mode],
3455 [enable make rules and dependencies not useful
3456 (and sometimes confusing) to the casual installer])],
ee03dc5e
AO		 3457 USE_MAINTAINER_MODE=$enableval,
3458 USE_MAINTAINER_MODE=no)
3459AC_MSG_RESULT($USE_MAINTAINER_MODE)
3460AC_SUBST(MAINTAINER_MODE_TRUE)
3461AC_SUBST(MAINTAINER_MODE_FALSE)
3462if test "$USE_MAINTAINER_MODE" = yes; then
3463 MAINTAINER_MODE_TRUE=
3464 MAINTAINER_MODE_FALSE='#'
3465else
3466 MAINTAINER_MODE_TRUE='#'
3467 MAINTAINER_MODE_FALSE=
3468fi
3469MAINT=$MAINTAINER_MODE_TRUE
3470AC_SUBST(MAINT)dnl
3471
2805b53a
NN		 3472# ---------------------
3473# GCC bootstrap support
3474# ---------------------
3475
3476# Stage specific cflags for build.
3477stage1_cflags="-g"
3478case $build in
3479 vax-*-*)
3480 case ${GCC} in
3481 yes) stage1_cflags="-g -Wa,-J" ;;
3482 *) stage1_cflags="-g -J" ;;
3483 esac ;;
2805b53a 3484esac
0b50988a 3485
2805b53a
NN		 3486AC_SUBST(stage1_cflags)
3487
8efea775
PB		 3488# Enable --enable-checking in stage1 of the compiler.
3489AC_ARG_ENABLE(stage1-checking,
33e39b66
AS		 3490[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3491 [choose additional checking for stage1 of the compiler])],
8efea775 3492[stage1_checking=--enable-checking=${enable_stage1_checking}],
e643dc23 3493[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
c10b5ea0
JJ		 3494 # For --disable-checking or implicit --enable-checking=release, avoid
3495 # setting --enable-checking=gc in the default stage1 checking for LTO
3496 # bootstraps. See PR62077.
c10b5ea0
JJ		 3497 case $BUILD_CONFIG in
3498 *lto*)
7db11a5a
JJ		 3499 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3500 *)
3501 stage1_checking=--enable-checking=yes,types;;
c10b5ea0 3502 esac
7db11a5a
JJ		 3503 if test "x$enable_checking" = x && \
3504 test -d ${srcdir}/gcc && \
3505 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
c100769b 3506 stage1_checking=--enable-checking=yes,types,extra
7db11a5a 3507 fi
8efea775 3508else
e643dc23 3509 stage1_checking=--enable-checking=$enable_checking,types
8efea775
PB		 3510fi])
3511AC_SUBST(stage1_checking)
3512
2805b53a 3513# Enable -Werror in bootstrap stage2 and later.
2805b53a 3514AC_ARG_ENABLE(werror,
33e39b66 3515[AS_HELP_STRING([--enable-werror],
afd88efc
ML		 3516 [enable -Werror in bootstrap stage2 and later])],
3517[
09a9c095
NN		 3518case ${enable_werror} in
3519 yes) stage2_werror_flag="--enable-werror-always" ;;
3520 *) stage2_werror_flag="" ;;
2805b53a 3521esac
afd88efc
ML		 3522],
3523[
01c712cb
ML		 3524if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3525 case $BUILD_CONFIG in
3526 bootstrap-debug)
3527 stage2_werror_flag="--enable-werror-always" ;;
3528 "")
3529 stage2_werror_flag="--enable-werror-always" ;;
3530 esac
3531fi
afd88efc 3532])
01c712cb 3533
09a9c095 3534AC_SUBST(stage2_werror_flag)
2805b53a 3535
f2689b09
SE		 3536# Specify what files to not compare during bootstrap.
3537
3538compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3539case "$target" in
3540 hppa*64*-*-hpux*) ;;
510555e0 3541 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
d7a29167 3542 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
f2689b09
SE		 3543esac
3544AC_SUBST(compare_exclusions)
3545
3e54529c
RW		 3546AC_CONFIG_FILES([Makefile],
3547 [sed "$extrasub_build" Makefile |
3548 sed "$extrasub_host" |
3549 sed "$extrasub_target" > mf$$
3550 mv -f mf$$ Makefile],
3551 [extrasub_build="$extrasub_build"
3552 extrasub_host="$extrasub_host"
3553 extrasub_target="$extrasub_target"])
3554AC_OUTPUT
Mirror of https://gcc.gnu.org/git/gcc.git