configure.ac

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
   2 #   2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
   3 #   Free Software Foundation, Inc.
   4 #
   5 # This file is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful, but
  11 # WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 # General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; see the file COPYING3.  If not see
  17 # <http://www.gnu.org/licenses/>.
  18
  19 ##############################################################################
  20 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  21
  22 m4_include(config/acx.m4)
  23 m4_include(config/override.m4)
  24 m4_include(config/proginstall.m4)
  25 m4_include(config/elf.m4)
  26 m4_include([libtool.m4])
  27 m4_include([ltoptions.m4])
  28 m4_include([ltsugar.m4])
  29 m4_include([ltversion.m4])
  30 m4_include([lt~obsolete.m4])
  31 m4_include([config/cloog.m4])
  32
  33 AC_INIT(move-if-change)
  34 AC_PREREQ(2.64)
  35 AC_DISABLE_OPTION_CHECKING
  36
  37 progname=$0
  38 # if PWD already has a value, it is probably wrong.
  39 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  40
  41 # Export original configure arguments for use by sub-configures.
  42 # Quote arguments with shell meta charatcers.
  43 TOPLEVEL_CONFIGURE_ARGUMENTS=
  44 set -- "$progname" "$@"
  45 for ac_arg
  46 do
  47   case "$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 $ac_arg"
  56 done
  57 if test "$silent" = yes; then
  58   TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
  59 fi
  60 # Remove the initial space we just introduced and, as these will be
  61 # expanded by make, quote '$'.
  62 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
  63 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  64
  65 # Find the build, host, and target systems.
  66 ACX_NONCANONICAL_BUILD
  67 ACX_NONCANONICAL_HOST
  68 ACX_NONCANONICAL_TARGET
  69
  70 dnl Autoconf 2.5x and later will set a default program prefix if
  71 dnl --target was used, even if it was the same as --host.  Disable
  72 dnl that behavior.  This must be done before AC_CANONICAL_SYSTEM
  73 dnl to take effect.
  74 test "$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
  79 AC_CANONICAL_SYSTEM
  80 AC_ARG_PROGRAM
  81
  82 m4_pattern_allow([^AS_FOR_TARGET$])dnl
  83 m4_pattern_allow([^AS_FOR_BUILD$])dnl
  84
  85 # Get 'install' or 'install-sh' and its variants.
  86 AC_PROG_INSTALL
  87 ACX_PROG_LN
  88 AC_PROG_LN_S
  89 AC_PROG_SED
  90 AC_PROG_AWK
  91
  92 ### we might need to use some other shell than /bin/sh for running subshells
  93 ### If we are on Windows, search for the shell.  This will permit people
  94 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  95 ### without also having to set CONFIG_SHELL.  This code will work when
  96 ### using bash, which sets OSTYPE.
  97 case "${OSTYPE}" in
  98 *win32*)
  99   if test x${CONFIG_SHELL} = x ; then
 100     if test ! -f /bin/sh ; then
 101       if test x${SHELL} != x && test -f ${SHELL} ; then
 102         CONFIG_SHELL=${SHELL}
 103         export CONFIG_SHELL
 104       else
 105         for prog in sh sh.exe bash bash.exe; do
 106           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 107           for dir in $PATH; do
 108             test -z "$dir" && dir=.
 109             if test -f $dir/$prog; then
 110               CONFIG_SHELL=$dir/$prog
 111               export CONFIG_SHELL
 112               break
 113             fi
 114           done
 115           IFS="$save_ifs"
 116           test -n "${CONFIG_SHELL}" && break
 117         done
 118       fi
 119     fi
 120   fi
 121   ;;
 122 esac
 123
 124 config_shell=${CONFIG_SHELL-/bin/sh}
 125
 126 moveifchange=${srcdir}/move-if-change
 127
 128 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
 129
 130 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
 131 # a relative path.
 132 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
 133   INSTALL="${srcpwd}/install-sh -c"
 134 fi
 135
 136 # Set srcdir to "." if that's what it is.
 137 # This is important for multilib support.
 138 pwd=`${PWDCMD-pwd}`
 139 if test "${pwd}" = "${srcpwd}" ; then
 140   srcdir=.
 141 fi
 142
 143 topsrcdir=$srcpwd
 144
 145 extra_host_args=
 146
 147 ### To add a new directory to the tree, first choose whether it is a target
 148 ### or a host dependent tool.  Then put it into the appropriate list
 149 ### (library or tools, host or target), doing a dependency sort.
 150
 151 # Subdirs will be configured in the order listed in build_configdirs,
 152 # configdirs, or target_configdirs; see the serialization section below.
 153
 154 # Dependency sorting is only needed when *configuration* must be done in
 155 # a particular order.  In all cases a dependency should be specified in
 156 # the Makefile, whether or not it's implicitly specified here.
 157
 158 # Double entries in build_configdirs, configdirs, or target_configdirs may
 159 # cause circular dependencies and break everything horribly.
 160
 161 # these library is used by various programs built for the build
 162 # environment
 163 #
 164 build_libs="build-libiberty"
 165
 166 # these tools are built for the build environment
 167 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 168
 169 # these libraries are used by various programs built for the host environment
 170 #
 171 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber gmp mpfr mpc ppl cloog libelf libiconv"
 172
 173 # these tools are built for the host environment
 174 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 175 # know that we are building the simulator.
 176 # binutils, gas and ld appear in that order because it makes sense to run
 177 # "make check" in that particular order.
 178 # If --enable-gold is used, "gold" may replace "ld".
 179 host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc cgen sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils gettext zip fastjar gnattools"
 180
 181 # libgcj represents the runtime libraries only used by gcj.
 182 libgcj="target-libffi \
 183         target-zlib \
 184         target-qthreads \
 185         target-libjava"
 186
 187 # these libraries are built for the target environment, and are built after
 188 # the host libraries and the host tools (which may be a cross compiler)
 189 #
 190 target_libraries="target-libgcc \
 191                 target-libiberty \
 192                 target-libgloss \
 193                 target-newlib \
 194                 target-libgomp \
 195                 target-libstdc++-v3 \
 196                 target-libmudflap \
 197                 target-libssp \
 198                 target-libquadmath \
 199                 target-libgfortran \
 200                 target-boehm-gc \
 201                 ${libgcj} \
 202                 target-libobjc \
 203                 target-libada \
 204                 target-libgo"
 205
 206 # these tools are built using the target libraries, and are intended to
 207 # run only in the target environment
 208 #
 209 # note: any program that *uses* libraries that are in the "target_libraries"
 210 # list belongs in this list.  those programs are also very likely
 211 # candidates for the "native_only" list which follows
 212 #
 213 target_tools="target-examples target-groff target-gperf target-rda"
 214
 215 ################################################################################
 216
 217 ## All tools belong in one of the four categories, and are assigned above
 218 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 219 ## is important because configure will choke if they ever get through.
 220 ## ${configdirs} is directories we build using the host tools.
 221 ## ${target_configdirs} is directories we build using the target tools.
 222 configdirs=`echo ${host_libs} ${host_tools}`
 223 target_configdirs=`echo ${target_libraries} ${target_tools}`
 224 build_configdirs=`echo ${build_libs} ${build_tools}`
 225
 226 m4_divert_text([PARSE_ARGS],
 227 [case $srcdir in
 228   *" "*)
 229 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
 230     AC_MSG_ERROR([path to source, $srcdir, contains spaces])
 231 m4_popdef([AS_MESSAGE_LOG_FD])dnl
 232     ;;
 233 esac
 234 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
 235 ])
 236
 237 ################################################################################
 238
 239 srcname="gnu development package"
 240
 241 # This gets set non-empty for some net releases of packages.
 242 appdirs=""
 243
 244 # Define is_cross_compiler to save on calls to 'test'.
 245 is_cross_compiler=
 246 if test x"${host}" = x"${target}" ; then
 247   is_cross_compiler=no
 248 else
 249   is_cross_compiler=yes
 250 fi
 251
 252 # Find the build and target subdir names.
 253 GCC_TOPLEV_SUBDIRS
 254 # Be sure to cover against remnants of an in-tree build.
 255 if test $srcdir != .  && test -d $srcdir/host-${host_noncanonical}; then
 256   AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
 257 Use a pristine source tree when building in a separate tree])
 258 fi
 259
 260 # Skipdirs are removed silently.
 261 skipdirs=
 262 # Noconfigdirs are removed loudly.
 263 noconfigdirs=""
 264
 265 use_gnu_ld=
 266 # Make sure we don't let GNU ld be added if we didn't want it.
 267 if test x$with_gnu_ld = xno ; then
 268   use_gnu_ld=no
 269   noconfigdirs="$noconfigdirs ld gold"
 270 fi
 271
 272 use_gnu_as=
 273 # Make sure we don't let GNU as be added if we didn't want it.
 274 if test x$with_gnu_as = xno ; then
 275   use_gnu_as=no
 276   noconfigdirs="$noconfigdirs gas"
 277 fi
 278
 279 use_included_zlib=
 280 # Make sure we don't let ZLIB be added if we didn't want it.
 281 if test x$with_system_zlib = xyes ; then
 282   use_included_zlib=no
 283   noconfigdirs="$noconfigdirs zlib"
 284 fi
 285
 286 # some tools are so dependent upon X11 that if we're not building with X,
 287 # it's not even worth trying to configure, much less build, that tool.
 288
 289 case ${with_x} in
 290   yes | "") ;; # the default value for this tree is that X11 is available
 291   no)
 292     skipdirs="${skipdirs} tk itcl libgui"
 293     # We won't be able to build gdbtk without X.
 294     enable_gdbtk=no
 295     ;;
 296   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 297 esac
 298
 299 # Some tools are only suitable for building in a "native" situation.
 300 # Remove these if host!=target.
 301 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 302
 303 # Similarly, some are only suitable for cross toolchains.
 304 # Remove these if host=target.
 305 cross_only="target-libgloss target-newlib target-opcodes"
 306
 307 case $is_cross_compiler in
 308   no) skipdirs="${skipdirs} ${cross_only}" ;;
 309   yes) skipdirs="${skipdirs} ${native_only}" ;;
 310 esac
 311
 312 # If both --with-headers and --with-libs are specified, default to
 313 # --without-newlib.
 314 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 315    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 316   if test x"${with_newlib}" = x ; then
 317     with_newlib=no
 318   fi
 319 fi
 320
 321 # Recognize --with-newlib/--without-newlib.
 322 case ${with_newlib} in
 323   no) skipdirs="${skipdirs} target-newlib" ;;
 324   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 325 esac
 326
 327 # Handle --enable-gold, --enable-ld.
 328 # --disable-gold [--enable-ld]
 329 #     Build only ld.  Default option.
 330 # --enable-gold [--enable-ld]
 331 #     Build both gold and ld.  Install gold as "ld.gold", install ld
 332 #     as "ld.bfd" and "ld".
 333 # --enable-gold=default [--enable-ld]
 334 #     Build both gold and ld.  Install gold as "ld.gold" and "ld",
 335 #     install ld as "ld.bfd".
 336 # --enable-gold[=default] --disable-ld
 337 #     Build only gold, which is then installed as both "ld.gold" and "ld".
 338 # --enable-gold --enable-ld=default
 339 #     Build both gold (installed as "ld.gold") and ld (installed as "ld"
 340 #     and ld.bfd).
 341 #     In other words, ld is default
 342 # --enable-gold=default --enable-ld=default
 343 #     Error.
 344
 345 default_ld=
 346 AC_ARG_ENABLE(gold,
 347 [[  --enable-gold[=ARG]     build gold [ARG={default,yes,no}]]],
 348 ENABLE_GOLD=$enableval,
 349 ENABLE_GOLD=no)
 350 case "${ENABLE_GOLD}" in
 351   yes|default)
 352     # Check for ELF target.
 353     is_elf=no
 354     case "${target}" in
 355       *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
 356       | *-*-linux* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
 357       | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-solaris2* | *-*-nto*)
 358         case "${target}" in
 359           *-*-linux*aout* | *-*-linux*oldld*)
 360             ;;
 361           *)
 362             is_elf=yes
 363             ;;
 364         esac
 365     esac
 366
 367     if test "$is_elf" = "yes"; then
 368       # Check for target supported by gold.
 369       case "${target}" in
 370         i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-*)
 371           configdirs="$configdirs gold"
 372           if test x${ENABLE_GOLD} = xdefault; then
 373             default_ld=gold
 374           fi
 375           ENABLE_GOLD=yes
 376           ;;
 377       esac
 378     fi
 379     ;;
 380   no)
 381     ;;
 382   *)
 383     AC_MSG_ERROR([invalid --enable-gold argument])
 384     ;;
 385 esac
 386
 387 AC_ARG_ENABLE(ld,
 388 [[  --enable-ld[=ARG]     build ld [ARG={default,yes,no}]]],
 389 ENABLE_LD=$enableval,
 390 ENABLE_LD=yes)
 391
 392 case "${ENABLE_LD}" in
 393   default)
 394     if test x${default_ld} != x; then
 395       AC_MSG_ERROR([either gold or ld can be the default ld])
 396     fi
 397     ;;
 398   yes)
 399     ;;
 400   no)
 401     if test x${ENABLE_GOLD} != xyes; then
 402       AC_MSG_WARN([neither ld nor gold are enabled])
 403     fi
 404     configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
 405     ;;
 406   *)
 407     AC_MSG_ERROR([invalid --enable-ld argument])
 408     ;;
 409 esac
 410
 411 # Configure extra directories which are host specific
 412
 413 case "${host}" in
 414   *-cygwin*)
 415     configdirs="$configdirs libtermcap" ;;
 416 esac
 417
 418 # A target can indicate whether a language isn't supported for some reason.
 419 # Only spaces may be used in this macro; not newlines or tabs.
 420 unsupported_languages=
 421
 422 # Remove more programs from consideration, based on the host or
 423 # target this usually means that a port of the program doesn't
 424 # exist yet.
 425
 426 case "${host}" in
 427   hppa*64*-*-*)
 428     noconfigdirs="$noconfigdirs byacc"
 429     ;;
 430   i[[3456789]]86-*-vsta)
 431     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 432     ;;
 433   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 434     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 435     ;;
 436   x86_64-*-mingw*)
 437     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
 438     ;;
 439   i[[3456789]]86-*-mingw32*)
 440     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 441     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
 442     ;;
 443   i[[3456789]]86-*-beos*)
 444     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 445     ;;
 446   *-*-cygwin*)
 447     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 448     ;;
 449   *-*-netbsd*)
 450     noconfigdirs="$noconfigdirs rcs"
 451     ;;
 452   ppc*-*-pe)
 453     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 454     ;;
 455   powerpc-*-beos*)
 456     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 457     ;;
 458 esac
 459
 460
 461 AC_ARG_ENABLE(libquadmath,
 462 AS_HELP_STRING([--disable-libquadmath],
 463   [do not build libquadmath directory]),
 464 ENABLE_LIBQUADMATH=$enableval,
 465 ENABLE_LIBQUADMATH=yes)
 466 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
 467   noconfigdirs="$noconfigdirs target-libquadmath"
 468 fi
 469
 470
 471 AC_ARG_ENABLE(libquadmath-support,
 472 AS_HELP_STRING([--disable-libquadmath-support],
 473   [disable libquadmath support for Fortran]),
 474 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
 475 ENABLE_LIBQUADMATH_SUPPORT=yes)
 476 enable_libquadmath_support=
 477 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
 478   enable_libquadmath_support=no
 479 fi
 480
 481
 482 AC_ARG_ENABLE(libada,
 483 [  --enable-libada         build libada directory],
 484 ENABLE_LIBADA=$enableval,
 485 ENABLE_LIBADA=yes)
 486 if test "${ENABLE_LIBADA}" != "yes" ; then
 487   noconfigdirs="$noconfigdirs gnattools"
 488 fi
 489
 490 AC_ARG_ENABLE(libssp,
 491 [  --enable-libssp         build libssp directory],
 492 ENABLE_LIBSSP=$enableval,
 493 ENABLE_LIBSSP=yes)
 494
 495 # Save it here so that, even in case of --enable-libgcj, if the Java
 496 # front-end isn't enabled, we still get libgcj disabled.
 497 libgcj_saved=$libgcj
 498 case $enable_libgcj in
 499 yes)
 500   # If we reset it here, it won't get added to noconfigdirs in the
 501   # target-specific build rules, so it will be forcibly enabled
 502   # (unless the Java language itself isn't enabled).
 503   libgcj=
 504   ;;
 505 no)
 506   # Make sure we get it printed in the list of not supported target libs.
 507   # Don't disable libffi, though, other languages use it.
 508   noconfigdirs="$noconfigdirs `echo ${libgcj} | sed -e 's/target-libffi//'`"
 509   # Clear libgcj_saved so that even if java is enabled libffi won't be
 510   # built.
 511   libgcj_saved=
 512   ;;
 513 esac
 514
 515
 516 # Disable libmudflap on some systems.
 517 if test x$enable_libmudflap = x ; then
 518     case "${target}" in
 519     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | bfin*-*-uclinux* | *-*-kopensolaris*-gnu)
 520         # Enable libmudflap by default in GNU and friends.
 521         ;;
 522     *-*-freebsd*)
 523         # Enable libmudflap by default in FreeBSD.
 524         ;;
 525     *)
 526         # Disable it by default everywhere else.
 527         noconfigdirs="$noconfigdirs target-libmudflap"
 528         ;;
 529     esac
 530 fi
 531
 532 # Disable libgomp on non POSIX hosted systems.
 533 if test x$enable_libgomp = x ; then
 534     # Enable libgomp by default on hosted POSIX systems.
 535     case "${target}" in
 536     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
 537         ;;
 538     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 539         ;;
 540     *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
 541         ;;
 542     *-*-darwin* | *-*-aix*)
 543         ;;
 544     *)
 545         noconfigdirs="$noconfigdirs target-libgomp"
 546         ;;
 547     esac
 548 fi
 549
 550 # Default libgloss CPU subdirectory.
 551 libgloss_dir="$target_cpu"
 552
 553 case "${target}" in
 554   *-*-chorusos)
 555     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 556     ;;
 557   powerpc-*-darwin*)
 558     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 559     noconfigdirs="$noconfigdirs sim target-rda"
 560     ;;
 561   i[[3456789]]86-*-darwin*)
 562     noconfigdirs="$noconfigdirs ld gprof"
 563     noconfigdirs="$noconfigdirs sim target-rda"
 564     ;;
 565   x86_64-*-darwin[[912]]*)
 566     noconfigdirs="$noconfigdirs ld gas gprof"
 567     noconfigdirs="$noconfigdirs sim target-rda"
 568     ;;
 569   *-*-darwin*)
 570     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 571     noconfigdirs="$noconfigdirs sim target-rda"
 572     noconfigdirs="$noconfigdirs ${libgcj}"
 573     ;;
 574   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 575     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 576     ;;
 577   *-*-freebsd*)
 578     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 579     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 580         && test -f /usr/local/include/gmp.h; then
 581       with_gmp=/usr/local
 582     fi
 583
 584     # Skip some stuff that's unsupported on some FreeBSD configurations.
 585     case "${target}" in
 586       i*86-*-*) ;;
 587       alpha*-*-*) ;;
 588       x86_64-*-*) ;;
 589       *)
 590         noconfigdirs="$noconfigdirs ${libgcj}"
 591         ;;
 592     esac
 593     ;;
 594   *-*-kaos*)
 595     # Remove unsupported stuff on all kaOS configurations.
 596     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 597     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 598     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 599     noconfigdirs="$noconfigdirs target-libgloss"
 600     ;;
 601   *-*-netbsd*)
 602     # Skip some stuff on all NetBSD configurations.
 603     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 604
 605     # Skip some stuff that's unsupported on some NetBSD configurations.
 606     case "${target}" in
 607       i*86-*-netbsdelf*) ;;
 608       arm*-*-netbsdelf*) ;;
 609       *)
 610         noconfigdirs="$noconfigdirs ${libgcj}"
 611         ;;
 612     esac
 613     ;;
 614   *-*-netware*)
 615     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 616     ;;
 617   *-*-rtems*)
 618     skipdirs="${skipdirs} target-libiberty"
 619     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 620     ;;
 621     # The tpf target doesn't support gdb yet.
 622   *-*-tpf*)
 623     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 624     ;;
 625   *-*-uclinux*)
 626     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 627     ;;
 628   *-*-vxworks*)
 629     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 630     ;;
 631   alpha*-dec-osf*)
 632     # ld works, but does not support shared libraries.
 633     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 634     # gas doesn't generate exception information.
 635     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 636     ;;
 637   alpha*-*-*vms*)
 638     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 639     ;;
 640   alpha*-*-linux*)
 641     # newlib is not 64 bit ready
 642     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 643     ;;
 644   alpha*-*-*)
 645     # newlib is not 64 bit ready
 646     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 647     ;;
 648   am33_2.0-*-linux*)
 649     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 650     ;;
 651   sh-*-linux*)
 652     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 653     ;;
 654   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 655     noconfigdirs="$noconfigdirs ${libgcj}"
 656     noconfigdirs="$noconfigdirs target-examples"
 657     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 658     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 659     noconfigdirs="$noconfigdirs expect dejagnu"
 660     # the C++ libraries don't build on top of CE's C libraries
 661     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 662     noconfigdirs="$noconfigdirs target-newlib"
 663     case "${host}" in
 664       *-*-cygwin*) ;; # keep gdb and readline
 665       *) noconfigdirs="$noconfigdirs gdb readline"
 666          ;;
 667     esac
 668     libgloss_dir=wince
 669     ;;
 670   arc-*-*)
 671     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 672     ;;
 673   arm-semi-aof )
 674     ;;
 675   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 676     noconfigdirs="$noconfigdirs ${libgcj}"
 677     libgloss_dir=arm
 678     ;;
 679   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 680     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 681     libgloss_dir=arm
 682     ;;
 683   arm*-*-linux-gnueabi)
 684     noconfigdirs="$noconfigdirs target-qthreads"
 685     case ${with_newlib} in
 686       no) noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 687     esac
 688     libgloss_dir=arm
 689     ;;
 690   arm*-*-symbianelf*)
 691     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 692     libgloss_dir=arm
 693     ;;
 694   arm-*-pe*)
 695     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 696     ;;
 697   thumb-*-coff)
 698     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 699     ;;
 700   thumb-*-elf)
 701     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 702     ;;
 703   thumb-*-pe)
 704     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 705     ;;
 706   arm-*-riscix*)
 707     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 708     ;;
 709   avr-*-*)
 710     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj} target-libssp"
 711     ;;
 712   bfin-*-*)
 713     unsupported_languages="$unsupported_languages java"
 714     noconfigdirs="$noconfigdirs target-boehm-gc gdb"
 715     if test x${is_cross_compiler} != xno ; then
 716       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 717     fi
 718     ;;
 719   c4x-*-* | tic4x-*-*)
 720     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 721     ;;
 722   c54x*-*-* | tic54x-*-*)
 723     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 724     ;;
 725   cr16-*-*)
 726     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 727     ;;
 728   cris-*-* | crisv32-*-*)
 729     unsupported_languages="$unsupported_languages java"
 730     case "${target}" in
 731       *-*-aout)
 732         unsupported_languages="$unsupported_languages fortran"
 733         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 734       *-*-elf) # See PR46792 regarding target-libffi.
 735         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 736       *-*-linux*)
 737         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 738       *)
 739         unsupported_languages="$unsupported_languages fortran"
 740         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 741     esac
 742     libgloss_dir=cris
 743     ;;
 744   crx-*-*)
 745     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 746     ;;
 747   d10v-*-*)
 748     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 749     ;;
 750   d30v-*-*)
 751     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 752     ;;
 753   ep9312-*-elf | ep9312-*-coff)
 754     libgloss_dir=arm
 755     ;;
 756   fr30-*-elf*)
 757     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 758     ;;
 759   frv-*-*)
 760     noconfigdirs="$noconfigdirs ${libgcj}"
 761     ;;
 762   moxie-*-*)
 763     noconfigdirs="$noconfigdirs ${libgcj}"
 764     noconfigdirs="$noconfigdirs gprof"
 765     ;;
 766   h8300*-*-*)
 767     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 768     ;;
 769   h8500-*-*)
 770     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 771     ;;
 772   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 773     ;;
 774   hppa*64*-*-linux* | parisc*64*-*-linux*)
 775     # In this case, it's because the hppa64-linux target is for
 776     # the kernel only at this point and has no libc, and thus no
 777     # headers, crt*.o, etc., all of which are needed by these.
 778     noconfigdirs="$noconfigdirs target-zlib"
 779     ;;
 780   parisc*-*-linux* | hppa*-*-linux*)
 781     ;;
 782   hppa*-*-*elf* | \
 783   hppa*-*-lites* | \
 784   hppa*-*-openbsd* | \
 785   hppa*64*-*-*)
 786     noconfigdirs="$noconfigdirs ${libgcj}"
 787     ;;
 788   hppa*-hp-hpux11*)
 789     noconfigdirs="$noconfigdirs ld shellutils"
 790     ;;
 791   hppa*-*-pro*)
 792     libgloss_dir=pa
 793     ;;
 794   hppa*-*-*)
 795     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 796     # build on HP-UX 10.20.
 797     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 798     ;;
 799   i960-*-*)
 800     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 801     ;;
 802   ia64*-*-elf*)
 803     # No gdb support yet.
 804     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 805     ;;
 806   ia64*-**-hpux*)
 807     # No gdb or ld support yet.
 808     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 809     ;;
 810   ia64*-*-*vms*)
 811     # No gdb or ld support yet.
 812     noconfigdirs="$noconfigdirs ${libgcj} tix readline mmalloc libgui itcl gdb ld"
 813     ;;
 814   i370-*-opened*)
 815     ;;
 816   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 817     noconfigdirs="$noconfigdirs ${libgcj}"
 818     libgloss_dir=i386
 819     ;;
 820   i[[3456789]]86-*-linux*)
 821     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 822     # not build java stuff by default.
 823     case "${target}" in
 824       *-*-*libc1*)
 825         noconfigdirs="$noconfigdirs ${libgcj}";;
 826     esac
 827
 828     # This section makes it possible to build newlib natively on linux.
 829     # If we are using a cross compiler then don't configure newlib.
 830     if test x${is_cross_compiler} != xno ; then
 831       noconfigdirs="$noconfigdirs target-newlib"
 832     fi
 833     noconfigdirs="$noconfigdirs target-libgloss"
 834     # If we are not using a cross compiler, do configure newlib.
 835     # Note however, that newlib will only be configured in this situation
 836     # if the --with-newlib option has been given, because otherwise
 837     # 'target-newlib' will appear in skipdirs.
 838     ;;
 839   i[[3456789]]86-w64-mingw*)
 840     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 841     ;;
 842   i[[3456789]]86-*-mingw*)
 843     target_configdirs="$target_configdirs target-winsup"
 844     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 845     ;;
 846   x86_64-*-mingw*)
 847     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 848     ;;
 849   *-*-cygwin*)
 850     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 851     noconfigdirs="$noconfigdirs target-gperf target-libgloss"
 852     # always build newlib if winsup directory is present.
 853     if test -d "$srcdir/winsup/cygwin"; then
 854       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 855     elif test -d "$srcdir/newlib"; then
 856       echo "Warning: winsup/cygwin is missing so newlib can't be built."
 857     fi
 858     ;;
 859   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 860   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 861     ;;
 862   i[[3456789]]86-*-pe)
 863     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 864     ;;
 865   i[[3456789]]86-*-sco3.2v5*)
 866     # The linker does not yet know about weak symbols in COFF,
 867     # and is not configured to handle mixed ELF and COFF.
 868     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 869     ;;
 870   i[[3456789]]86-*-sco*)
 871     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 872     ;;
 873   i[[3456789]]86-*-solaris2*)
 874     noconfigdirs="$noconfigdirs target-libgloss"
 875     ;;
 876   i[[3456789]]86-*-sysv4*)
 877     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 878     ;;
 879   i[[3456789]]86-*-beos*)
 880     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 881     ;;
 882   i[[3456789]]86-*-rdos*)
 883     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 884     ;;
 885   m32r-*-*)
 886     noconfigdirs="$noconfigdirs ${libgcj}"
 887     ;;
 888   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 889     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 890     libgloss_dir=m68hc11
 891     ;;
 892   m68k-*-elf*)
 893     noconfigdirs="$noconfigdirs ${libgcj}"
 894     ;;
 895   m68k-*-coff*)
 896     noconfigdirs="$noconfigdirs ${libgcj}"
 897     ;;
 898   m68*-*-* | fido-*-*)
 899     libgloss_dir=m68k
 900     ;;
 901   mcore-*-pe*)
 902   # The EPOC C++ environment does not support exceptions or rtti,
 903   # and so building libstdc++-v3 tends not to always work.
 904     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 905     ;;
 906   mmix-*-*)
 907     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 908     unsupported_languages="$unsupported_languages fortran java"
 909     ;;
 910   mn10200-*-*)
 911     noconfigdirs="$noconfigdirs ${libgcj}"
 912     ;;
 913   mn10300-*-*)
 914     noconfigdirs="$noconfigdirs ${libgcj}"
 915     ;;
 916   mt-*-*)
 917     noconfigdirs="$noconfigdirs sim"
 918     ;;
 919   powerpc-*-aix*)
 920     # copied from rs6000-*-* entry
 921     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp target-newlib ${libgcj}"
 922     ;;
 923   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 924     target_configdirs="$target_configdirs target-winsup"
 925     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 926     # always build newlib.
 927     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 928     ;;
 929     # This is temporary until we can link against shared libraries
 930   powerpcle-*-solaris*)
 931     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 932     libgloss_dir=rs6000
 933     ;;
 934   powerpc-*-beos*)
 935     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 936     ;;
 937   powerpc-*-eabi)
 938     noconfigdirs="$noconfigdirs ${libgcj}"
 939     libgloss_dir=rs6000
 940     ;;
 941   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 942     libgloss_dir=rs6000
 943     ;;
 944   rs6000-*-lynxos*)
 945     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 946     ;;
 947   rs6000-*-aix*)
 948     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp target-newlib ${libgcj}"
 949     ;;
 950   rs6000-*-*)
 951     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 952     ;;
 953   m68k-apollo-*)
 954     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 955     ;;
 956   microblaze*)
 957     noconfigdirs="$noconfigdirs gprof target-libssp ${libgcj}"
 958     ;;
 959   mips*-sde-elf*)
 960     skipdirs="$skipdirs target-libiberty"
 961     noconfigdirs="$noconfigdirs ${libgcj}"
 962     if test x$with_newlib = xyes; then
 963       noconfigdirs="$noconfigdirs gprof"
 964     fi
 965     libgloss_dir=mips
 966     ;;
 967   mips*-*-irix5*)
 968     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 969     ;;
 970   mips*-*-irix6*)
 971     # Linking libjava exceeds command-line length limits on at least
 972     # IRIX 6.2, but not on IRIX 6.5.
 973     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 974     # <oldham@codesourcery.com>
 975     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 976     ;;
 977   mips*-*-bsd*)
 978     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 979     ;;
 980   mips*-*-linux*)
 981     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 982     ;;
 983   mips*-*-*)
 984     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 985     libgloss_dir=mips
 986     ;;
 987   romp-*-*)
 988     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 989     ;;
 990   sh-*-* | sh64-*-*)
 991     case "${host}" in
 992       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 993       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 994       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 995       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 996     esac
 997     case "${target}" in
 998       sh*-*-elf)
 999          noconfigdirs="$noconfigdirs ${libgcj}" ;;
1000       *)
1001          noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;;
1002     esac
1003     ;;
1004   sparclet-*-aout* | sparc86x-*-*)
1005     libgloss_dir=sparc
1006     ;;
1007   sparc-*-elf*)
1008     noconfigdirs="$noconfigdirs ${libgcj}"
1009     ;;
1010   sparc64-*-elf*)
1011     noconfigdirs="$noconfigdirs ${libgcj}"
1012     libgloss_dir=sparc
1013     ;;
1014   sparclite-*-*)
1015     noconfigdirs="$noconfigdirs ${libgcj}"
1016     libgloss_dir=sparc
1017     ;;
1018   sparc-*-sunos4*)
1019     noconfigdirs="$noconfigdirs ${libgcj}"
1020     if test x${is_cross_compiler} != xno ; then
1021            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1022     else
1023            use_gnu_ld=no
1024     fi
1025     ;;
1026   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
1027     noconfigdirs="$noconfigdirs ${libgcj}"
1028     ;;
1029   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
1030     ;;
1031   tic6x-*-*)
1032     noconfigdirs="$noconfigdirs gdb sim ${libgcj}"
1033     ;;
1034   v810-*-*)
1035     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
1036     ;;
1037   v850*-*-*)
1038     noconfigdirs="$noconfigdirs ${libgcj}"
1039     ;;
1040   vax-*-vms)
1041     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
1042     ;;
1043   vax-*-*)
1044     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
1045     ;;
1046   xtensa*-*-*)
1047     noconfigdirs="$noconfigdirs ${libgcj}"
1048     ;;
1049   ip2k-*-*)
1050     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
1051     ;;
1052   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
1053     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1054     ;;
1055   *-*-lynxos*)
1056     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
1057     ;;
1058   *-*-*)
1059     noconfigdirs="$noconfigdirs ${libgcj}"
1060     ;;
1061 esac
1062
1063 # If we aren't building newlib, then don't build libgloss, since libgloss
1064 # depends upon some newlib header files.
1065 case "${noconfigdirs}" in
1066   *target-libgloss*) ;;
1067   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1068 esac
1069
1070 # Work in distributions that contain no compiler tools, like Autoconf.
1071 tentative_cc=""
1072 host_makefile_frag=/dev/null
1073 if test -d ${srcdir}/config ; then
1074 case "${host}" in
1075   m68k-hp-hpux*)
1076     # Avoid "too much defining" errors from HPUX compiler.
1077     tentative_cc="cc -Wp,-H256000"
1078     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
1079     # If it's HP/UX ar, this should be harmless.
1080     RANLIB="ar ts"
1081     ;;
1082   m68k-apollo-sysv*)
1083     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
1084     ;;
1085   m68k-apollo-bsd*)
1086     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
1087     # chokes on bfd, the compiler won't let you assign integers to enums, and
1088     # other problems.  Defining CC to gcc is a questionable way to say "don't use
1089     # the apollo compiler" (the preferred version of GCC could be called cc,
1090     # or whatever), but I'm not sure leaving CC as cc is any better...
1091     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
1092     # Used to have BISON=yacc.
1093     tentative_cc=gcc
1094     ;;
1095   m88k-dg-dgux*)
1096     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
1097     ;;
1098   m88k-harris-cxux*)
1099     # Under CX/UX, we want to tell the compiler to use ANSI mode.
1100     tentative_cc="cc -Xa"
1101     host_makefile_frag="config/mh-cxux"
1102     ;;
1103   m88k-motorola-sysv*)
1104     ;;
1105   mips*-dec-ultrix*)
1106     tentative_cc="cc -Wf,-XNg1000"
1107     host_makefile_frag="config/mh-decstation"
1108     ;;
1109   mips*-nec-sysv4*)
1110     # The C compiler on NEC MIPS SVR4 needs bigger tables.
1111     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
1112     host_makefile_frag="config/mh-necv4"
1113     ;;
1114   mips*-sgi-irix4*)
1115     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
1116     # environment.  Also bump switch table size so that cp-parse will
1117     # compile.  Bump string length limit so linker builds.
1118     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
1119     ;;
1120   mips*-*-sysv4*)
1121     host_makefile_frag="config/mh-sysv4"
1122     ;;
1123   mips*-*-sysv*)
1124     # This is for a MIPS running RISC/os 4.52C.
1125
1126     # This is needed for GDB, but needs to be in the top-level make because
1127     # if a library is compiled with the bsd headers and gets linked with the
1128     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
1129     # a different size).
1130     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
1131     # known except to select the sysv environment.  Could we use /proc instead?
1132     # These "sysv environments" and "bsd environments" often end up being a pain.
1133     #
1134     # This is not part of CFLAGS because perhaps not all C compilers have this
1135     # option.
1136     tentative_cc="cc -systype sysv"
1137     ;;
1138   i370-ibm-opened*)
1139     tentative_cc="c89"
1140     ;;
1141   i[[3456789]]86-*-sysv5*)
1142     host_makefile_frag="config/mh-sysv5"
1143     ;;
1144   i[[3456789]]86-*-dgux*)
1145     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
1146     host_makefile_frag="config/mh-dgux386"
1147     ;;
1148   i[[3456789]]86-ncr-sysv4.3*)
1149     # The MetaWare compiler will generate a copyright message unless you
1150     # turn it off by adding the -Hnocopyr flag.
1151     tentative_cc="cc -Hnocopyr"
1152     ;;
1153   i[[3456789]]86-ncr-sysv4*)
1154     # for an NCR 3000 (i486/SVR4) system.
1155     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
1156     # This compiler not only emits obnoxious copyright messages every time
1157     # you run it, but it chokes and dies on a whole bunch of GNU source
1158     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
1159     tentative_cc="/usr/ccs/ATT/cc"
1160     host_makefile_frag="config/mh-ncr3000"
1161     ;;
1162   i[[3456789]]86-*-sco3.2v5*)
1163     ;;
1164   i[[3456789]]86-*-sco*)
1165     # The native C compiler botches some simple uses of const.  Unfortunately,
1166     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
1167     tentative_cc="cc -Dconst="
1168     host_makefile_frag="config/mh-sco"
1169     ;;
1170   i[[3456789]]86-*-udk*)
1171     host_makefile_frag="config/mh-sysv5"
1172     ;;
1173   i[[3456789]]86-*-solaris2*)
1174     host_makefile_frag="config/mh-sysv4"
1175     ;;
1176   i[[3456789]]86-*-msdosdjgpp*)
1177     host_makefile_frag="config/mh-djgpp"
1178     ;;
1179   *-cygwin*)
1180     ACX_CHECK_CYGWIN_CAT_WORKS
1181     host_makefile_frag="config/mh-cygwin"
1182     ;;
1183   *-mingw*)
1184     host_makefile_frag="config/mh-mingw"
1185     ;;
1186   *-interix*)
1187     host_makefile_frag="config/mh-interix"
1188     ;;
1189   vax-*-ultrix2*)
1190     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
1191     tentative_cc=gcc
1192     ;;
1193   *-*-solaris2*)
1194     host_makefile_frag="config/mh-solaris"
1195     ;;
1196   m68k-sun-sunos*)
1197     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
1198     # without overflowing the jump tables (-J says to use a 32 bit table)
1199     tentative_cc="cc -J"
1200     ;;
1201   hppa*-hp-hpux10*)
1202     tentative_cc="cc -Wp,-H256000"
1203     host_makefile_frag="config/mh-pa-hpux10"
1204     ;;
1205   hppa*-hp-hpux* | hppa*-*-hiux*)
1206     tentative_cc="cc -Wp,-H256000"
1207     host_makefile_frag="config/mh-pa"
1208     ;;
1209   hppa*-*)
1210     host_makefile_frag="config/mh-pa"
1211     ;;
1212   *-hp-hpux* | *-*-hiux*)
1213     tentative_cc="cc -Wp,-H256000"
1214     ;;
1215   rs6000-*-lynxos*)
1216     # /bin/cc is less than useful for our purposes.  Always use GCC
1217     tentative_cc="/usr/cygnus/progressive/bin/gcc"
1218     host_makefile_frag="config/mh-lynxrs6k"
1219     ;;
1220   *-*-darwin*)
1221     host_makefile_frag="config/mh-darwin"
1222     ;;
1223   powerpc-*-aix*)
1224     host_makefile_frag="config/mh-ppc-aix"
1225     ;;
1226   rs6000-*-aix*)
1227     host_makefile_frag="config/mh-ppc-aix"
1228     ;;
1229   *-*-lynxos*)
1230     # /bin/cc is less than useful for our purposes.  Always use GCC
1231     tentative_cc="/bin/gcc"
1232     ;;
1233   *-*-sysv4*)
1234     host_makefile_frag="config/mh-sysv4"
1235     ;;
1236   # This is placed last to prevent interfering with the cases above.
1237   i[[3456789]]86-*-*)
1238     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
1239     host_makefile_frag="config/mh-x86omitfp"
1240     ;;
1241 esac
1242 fi
1243
1244 # If we aren't going to be using gcc, see if we can extract a definition
1245 # of CC from the fragment.
1246 # Actually, use the 'pre-extracted' version above.
1247 if test -z "${CC}" && test "${build}" = "${host}" ; then
1248   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1249   found=
1250   for dir in $PATH; do
1251     test -z "$dir" && dir=.
1252     if test -f $dir/gcc; then
1253       found=yes
1254       break
1255     fi
1256   done
1257   IFS="$save_ifs"
1258   if test -z "${found}" && test -n "${tentative_cc}" ; then
1259     CC=$tentative_cc
1260   fi
1261 fi
1262
1263 if test "${build}" != "${host}" ; then
1264   AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1265   AS_FOR_BUILD=${AS_FOR_BUILD-as}
1266   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1267   CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1268   GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1269   GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1270   GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1271   DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1272   LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1273   NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1274   RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1275   WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1276   WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1277 else
1278   AR_FOR_BUILD="\$(AR)"
1279   AS_FOR_BUILD="\$(AS)"
1280   CC_FOR_BUILD="\$(CC)"
1281   CXX_FOR_BUILD="\$(CXX)"
1282   GCJ_FOR_BUILD="\$(GCJ)"
1283   GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1284   GOC_FOR_BUILD="\$(GOC)"
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)"
1291 fi
1292
1293 AC_PROG_CC
1294 AC_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.
1299 if 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
1313 fi
1314
1315 ACX_PROG_GNAT
1316 ACX_PROG_CMP_IGNORE_INITIAL
1317
1318 # See if we are building gcc with C++.
1319 AC_ARG_ENABLE(build-with-cxx,
1320 [  --enable-build-with-cxx build with C++ compiler instead of C compiler],
1321 ENABLE_BUILD_WITH_CXX=$enableval,
1322 ENABLE_BUILD_WITH_CXX=no)
1323
1324 # Used for setting $lt_cv_objdir
1325 _LT_CHECK_OBJDIR
1326
1327 # Check for GMP, MPFR and MPC
1328 gmplibs="-lmpc -lmpfr -lgmp"
1329 gmpinc=
1330 have_gmp=no
1331
1332 # Specify a location for mpc
1333 # check for this first so it ends up on the link line before mpfr.
1334 AC_ARG_WITH(mpc, [  --with-mpc=PATH        specify prefix directory for installed MPC package.
1335                           Equivalent to --with-mpc-include=PATH/include
1336                           plus --with-mpc-lib=PATH/lib])
1337 AC_ARG_WITH(mpc-include, [  --with-mpc-include=PATH
1338                           specify directory for installed MPC include files])
1339 AC_ARG_WITH(mpc-lib, [  --with-mpc-lib=PATH    specify directory for the installed MPC library])
1340
1341 if test "x$with_mpc" != x; then
1342   gmplibs="-L$with_mpc/lib $gmplibs"
1343   gmpinc="-I$with_mpc/include $gmpinc"
1344 fi
1345 if test "x$with_mpc_include" != x; then
1346   gmpinc="-I$with_mpc_include $gmpinc"
1347 fi
1348 if test "x$with_mpc_lib" != x; then
1349   gmplibs="-L$with_mpc_lib $gmplibs"
1350 fi
1351 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1352   gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1353   gmpinc='-I$$s/mpc/src '"$gmpinc"
1354   # Do not test the mpc version.  Assume that it is sufficient, since
1355   # it is in the source tree, and the library has not been built yet
1356   # but it would be included on the link line in the version check below
1357   # hence making the test fail.
1358   have_gmp=yes
1359 fi
1360
1361 # Specify a location for mpfr
1362 # check for this first so it ends up on the link line before gmp.
1363 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    this option has been REMOVED],
1364   AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1365 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH]))
1366
1367 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        specify prefix directory for installed MPFR package.
1368                           Equivalent to --with-mpfr-include=PATH/include
1369                           plus --with-mpfr-lib=PATH/lib])
1370 AC_ARG_WITH(mpfr-include, [  --with-mpfr-include=PATH
1371                           specify directory for installed MPFR include files])
1372 AC_ARG_WITH(mpfr-lib, [  --with-mpfr-lib=PATH    specify directory for the installed MPFR library])
1373
1374 if test "x$with_mpfr" != x; then
1375   gmplibs="-L$with_mpfr/lib $gmplibs"
1376   gmpinc="-I$with_mpfr/include $gmpinc"
1377 fi
1378 if test "x$with_mpfr_include" != x; then
1379   gmpinc="-I$with_mpfr_include $gmpinc"
1380 fi
1381 if test "x$with_mpfr_lib" != x; then
1382   gmplibs="-L$with_mpfr_lib $gmplibs"
1383 fi
1384 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1385   gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
1386   gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1387   extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
1388   # Do not test the mpfr version.  Assume that it is sufficient, since
1389   # it is in the source tree, and the library has not been built yet
1390   # but it would be included on the link line in the version check below
1391   # hence making the test fail.
1392   have_gmp=yes
1393 fi
1394
1395 # Specify a location for gmp
1396 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     this option has been REMOVED],
1397   AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1398 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH]))
1399
1400 AC_ARG_WITH(gmp, [  --with-gmp=PATH         specify prefix directory for the installed GMP package.
1401                           Equivalent to --with-gmp-include=PATH/include
1402                           plus --with-gmp-lib=PATH/lib])
1403 AC_ARG_WITH(gmp-include, [  --with-gmp-include=PATH specify directory for installed GMP include files])
1404 AC_ARG_WITH(gmp-lib, [  --with-gmp-lib=PATH     specify directory for the installed GMP library])
1405
1406
1407 if test "x$with_gmp" != x; then
1408   gmplibs="-L$with_gmp/lib $gmplibs"
1409   gmpinc="-I$with_gmp/include $gmpinc"
1410 fi
1411 if test "x$with_gmp_include" != x; then
1412   gmpinc="-I$with_gmp_include $gmpinc"
1413 fi
1414 if test "x$with_gmp_lib" != x; then
1415   gmplibs="-L$with_gmp_lib $gmplibs"
1416 fi
1417 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1418   gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1419   gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1420   extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1421   extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1422   # Do not test the gmp 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.
1426   have_gmp=yes
1427 fi
1428
1429 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1430   have_gmp=yes
1431   saved_CFLAGS="$CFLAGS"
1432   CFLAGS="$CFLAGS $gmpinc"
1433   # Check for the recommended and required versions of GMP.
1434   AC_MSG_CHECKING([for the correct version of gmp.h])
1435   AC_TRY_COMPILE([#include "gmp.h"],[
1436   #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1437   #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1438   #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,0)
1439   choke me
1440   #endif
1441   ], [AC_TRY_COMPILE([#include <gmp.h>],[
1442   #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1443   #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1444   #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1445   choke me
1446   #endif
1447   ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1448    [AC_MSG_RESULT([no]); have_gmp=no])
1449
1450   # If we have GMP, check the MPFR version.
1451   if test x"$have_gmp" = xyes; then
1452     # Check for the recommended and required versions of MPFR.
1453     AC_MSG_CHECKING([for the correct version of mpfr.h])
1454     AC_TRY_COMPILE([#include <gmp.h>
1455     #include <mpfr.h>],[
1456     #if MPFR_VERSION < MPFR_VERSION_NUM(2,3,1)
1457     choke me
1458     #endif
1459     ], [AC_TRY_COMPILE([#include <gmp.h>
1460     #include <mpfr.h>],[
1461     #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1462     choke me
1463     #endif
1464     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1465      [AC_MSG_RESULT([no]); have_gmp=no])
1466   fi
1467
1468   # Check for the MPC header version.
1469   if test x"$have_gmp" = xyes ; then
1470     # Check for the recommended and required versions of MPC.
1471     AC_MSG_CHECKING([for the correct version of mpc.h])
1472     AC_TRY_COMPILE([#include <mpc.h>],[
1473     #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1474     choke me
1475     #endif
1476     ], [AC_TRY_COMPILE([#include <mpc.h>],[
1477     #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1478     choke me
1479     #endif
1480     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1481      [AC_MSG_RESULT([no]); have_gmp=no])
1482   fi
1483
1484   # Now check the MPFR library.
1485   if test x"$have_gmp" = xyes; then
1486     saved_LIBS="$LIBS"
1487     LIBS="$LIBS $gmplibs"
1488     AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1489     AC_TRY_LINK([#include <mpc.h>],[
1490     mpfr_t n;
1491     mpfr_t x;
1492     mpc_t c;
1493     int t;
1494     mpfr_init (n);
1495     mpfr_init (x);
1496     mpfr_atan2 (n, n, x, GMP_RNDN);
1497     mpfr_erfc (n, x, GMP_RNDN);
1498     mpfr_subnormalize (x, t, GMP_RNDN);
1499     mpfr_clear(n);
1500     mpfr_clear(x);
1501     mpc_init2 (c, 53);
1502     mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1503     mpc_cosh (c, c, MPC_RNDNN);
1504     mpc_pow (c, c, c, MPC_RNDNN);
1505     mpc_acosh (c, c, MPC_RNDNN);
1506     mpc_clear (c);
1507     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1508     LIBS="$saved_LIBS"
1509   fi
1510
1511   CFLAGS="$saved_CFLAGS"
1512
1513 # The library versions listed in the error message below should match
1514 # the HARD-minimums enforced above.
1515   if test x$have_gmp != xyes; then
1516     AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+.
1517 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1518 their locations.  Source code for these libraries can be found at
1519 their respective hosting sites as well as at
1520 ftp://gcc.gnu.org/pub/gcc/infrastructure/.  See also
1521 http://gcc.gnu.org/install/prerequisites.html for additional info.  If
1522 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1523 make sure that you have installed both the libraries and the header
1524 files.  They may be located in separate packages.])
1525   fi
1526 fi
1527
1528 # Flags needed for both GMP, MPFR and/or MPC.
1529 AC_SUBST(gmplibs)
1530 AC_SUBST(gmpinc)
1531 AC_SUBST(extra_mpfr_configure_flags)
1532 AC_SUBST(extra_mpc_gmp_configure_flags)
1533 AC_SUBST(extra_mpc_mpfr_configure_flags)
1534
1535 # Allow host libstdc++ to be specified for static linking with PPL.
1536 AC_ARG_WITH(host-libstdcxx, [  --with-host-libstdcxx=L Use linker arguments L to link with libstdc++
1537                           when linking with PPL])
1538
1539 case $with_host_libstdcxx in
1540   no|yes)
1541     AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
1542     ;;
1543 esac
1544
1545 # Linker flags to use for stage1 or when not boostrapping.
1546 AC_ARG_WITH(stage1-ldflags,
1547 [  --with-stage1-ldflags=FLAGS Linker flags for stage1],
1548 [if test "$withval" = "no" -o "$withval" = "yes"; then
1549    stage1_ldflags=
1550  else
1551    stage1_ldflags=$withval
1552  fi],
1553 [stage1_ldflags=])
1554 AC_SUBST(stage1_ldflags)
1555
1556 # Libraries to use for stage1 or when not bootstrapping.
1557 AC_ARG_WITH(stage1-libs,
1558 [  -with-stage1-libs=LIBS      Libraries for stage1],
1559 [if test "$withval" = "no" -o "$withval" = "yes"; then
1560    stage1_libs=
1561  else
1562    stage1_libs=$withval
1563  fi],
1564 [stage1_libs=$with_host_libstdcxx])
1565 AC_SUBST(stage1_libs)
1566
1567 # Libraries to use for stage2 and later builds.  This defaults to the
1568 # argument passed to --with-host-libstdcxx.
1569 AC_ARG_WITH(boot-libs,
1570 [  --with-boot-libs=LIBS     Libraries for stage2 and later],
1571 [if test "$withval" = "no" -o "$withval" = "yes"; then
1572    poststage1_libs=
1573  else
1574    poststage1_libs=$withval
1575  fi],
1576 [poststage1_libs=$with_host_libstdcxx])
1577 AC_SUBST(poststage1_libs)
1578
1579 # Linker flags to use for stage2 and later builds.
1580 AC_ARG_WITH(boot-ldflags,
1581 [  --with-boot-ldflags=FLAGS Linker flags for stage2 and later],
1582 [if test "$withval" = "no" -o "$withval" = "yes"; then
1583    poststage1_ldflags=
1584  else
1585    poststage1_ldflags=$withval
1586  fi],
1587 [poststage1_ldflags=
1588  # In stages 2 and 3, default to linking libstdc++ and libgcc
1589  # statically.  But if the user explicitly specified the libraries to
1590  # use, trust that they are doing what they want.
1591  if test "$poststage1_libs" = ""; then
1592    poststage1_ldflags="-static-libstdc++ -static-libgcc"
1593  fi])
1594 AC_SUBST(poststage1_ldflags)
1595
1596 # Check for PPL
1597 ppllibs=" -lppl_c -lppl -lgmpxx"
1598 pplinc=
1599
1600 AC_ARG_WITH(ppl, [  --with-ppl=PATH         Specify prefix directory for the installed PPL package
1601                           Equivalent to --with-ppl-include=PATH/include
1602                           plus --with-ppl-lib=PATH/lib])
1603 AC_ARG_WITH(ppl-include, [  --with-ppl-include=PATH Specify directory for installed PPL include files])
1604 AC_ARG_WITH(ppl-lib, [  --with-ppl-lib=PATH     Specify the directory for the installed PPL library])
1605
1606 case $with_ppl in
1607   no)
1608     ppllibs=
1609     ;;
1610   "" | yes)
1611     ;;
1612   *)
1613     ppllibs="-L$with_ppl/lib -lppl_c -lppl -lgmpxx"
1614     pplinc="-I$with_ppl/include $pplinc"
1615     ;;
1616 esac
1617 if test "x$with_ppl_include" != x; then
1618   pplinc="-I$with_ppl_include $pplinc"
1619 fi
1620 if test "x$with_ppl_lib" != x; then
1621   ppllibs="-L$with_ppl_lib -lppl_c -lppl -lgmpxx"
1622 fi
1623 if test "x$with_ppl$with_ppl_include$with_ppl_lib" = x && test -d ${srcdir}/ppl; then
1624   ppllibs='-L$$r/$(HOST_SUBDIR)/ppl/interfaces/C/'"$lt_cv_objdir"' -L$$r/$(HOST_SUBDIR)/ppl/src/'"$lt_cv_objdir"' -lppl_c -lppl -lgmpxx '
1625   pplinc='-I$$r/$(HOST_SUBDIR)/ppl/src -I$$r/$(HOST_SUBDIR)/ppl/interfaces/C '
1626   enable_ppl_version_check=no
1627 fi
1628
1629 AC_ARG_ENABLE(ppl-version-check,
1630 [  --disable-ppl-version-check    disable check for PPL version],
1631 ENABLE_PPL_CHECK=$enableval,
1632 ENABLE_PPL_CHECK=yes)
1633
1634 if test "x$with_ppl" != "xno" -a "${ENABLE_PPL_CHECK}" = "yes"; then
1635   saved_CFLAGS="$CFLAGS"
1636   CFLAGS="$CFLAGS $pplinc $gmpinc"
1637   AC_MSG_CHECKING([for version 0.10 (or later revision) of PPL])
1638   AC_TRY_COMPILE([#include "ppl_c.h"],[
1639   #if PPL_VERSION_MAJOR != 0 || PPL_VERSION_MINOR < 10
1640   choke me
1641   #endif
1642   ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); ppllibs= ; pplinc= ; with_ppl=no ])
1643   CFLAGS="$saved_CFLAGS"
1644 fi
1645
1646 # Flags needed for PPL
1647 AC_SUBST(ppllibs)
1648 AC_SUBST(pplinc)
1649
1650
1651 # Check for CLOOG
1652
1653 dnl Provide configure switches and initialize clooginc & clooglibs
1654 dnl with user input.
1655 CLOOG_INIT_FLAGS
1656 if test "x$with_ppl" = "xno"; then
1657   with_cloog=no
1658 fi
1659 if test "x${with_cloog}" = x && test "x${with_cloog_include}" = x \
1660   && test "x${with_cloog_lib}" = x && test -d ${srcdir}/cloog; then
1661   clooglibs='-L$$r/$(HOST_SUBDIR)/cloog/'"$lt_cv_objdir"' '
1662   clooginc='-I$$r/$(HOST_SUBDIR)/cloog/include -I$$s/cloog/include '
1663 fi
1664 if test "x$with_cloog" != "xno"; then
1665   dnl Version check for CLooG-Org
1666   dnl As long as there is no new release of CLooG,
1667   dnl we will check for 0.14.0.
1668   dnl
1669   dnl The first git revision that will work with
1670   dnl GCC is: bd91b845a65805c290d43fc1bef8139864a163fb
1671   dnl This is enforced implictly, as this is the commit that
1672   dnl introduced the versioning information used within our
1673   dnl checks.
1674   dnl
1675   dnl If we're using CLooG-Legacy, the provided version information
1676   dnl will be ignored.
1677   CLOOG_CHECK_VERSION(0,14,0)
1678
1679   dnl Only execute fail-action, if CLooG has been
1680   dnl requested.
1681   CLOOG_IF_FAILED([
1682     AC_MSG_ERROR([Unable to find a usable CLooG. See config.log for details.])])
1683 fi
1684
1685 # Check for LTO support.
1686 AC_ARG_ENABLE(lto,
1687 [  --enable-lto            enable link time optimization support],
1688 enable_lto=$enableval,
1689 enable_lto=yes; default_enable_lto=yes)
1690
1691 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1692   build_lto_plugin=yes
1693 ],[if test x"$default_enable_lto" = x"yes" ; then
1694     case $target in
1695       *-apple-darwin* | *-cygwin* | *-mingw*) ;;
1696       # On other non-ELF platforms, LTO has yet to be validated.
1697       *) enable_lto=no ;;
1698     esac
1699   else
1700   # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1701   # It would also be nice to check the binutils support, but we don't
1702   # have gcc_GAS_CHECK_FEATURE available here.  For now, we'll just
1703   # warn during gcc/ subconfigure; unless you're bootstrapping with
1704   # -flto it won't be needed until after installation anyway.
1705     case $target in
1706       *-cygwin* | *-mingw* | *-apple-darwin*) ;;
1707       *) if test x"$enable_lto" = x"yes"; then
1708         AC_MSG_ERROR([LTO support is not enabled for this target.])
1709         fi
1710       ;;
1711     esac
1712   fi
1713   # Among non-ELF, only Windows platforms support the lto-plugin so far.
1714   # Build it unless LTO was explicitly disabled.
1715   case $target in
1716     *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1717     *) ;;
1718   esac
1719 ])
1720
1721
1722 # By default, C is the only stage 1 language.
1723 stage1_languages=,c,
1724
1725 # Target libraries that we bootstrap.
1726 bootstrap_target_libs=,target-libgcc,
1727
1728 # Figure out what language subdirectories are present.
1729 # Look if the user specified --enable-languages="..."; if not, use
1730 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1731 # go away some day.
1732 # NB:  embedded tabs in this IF block -- do not untabify
1733 if test -d ${srcdir}/gcc; then
1734   if test x"${enable_languages+set}" != xset; then
1735     if test x"${LANGUAGES+set}" = xset; then
1736       enable_languages="${LANGUAGES}"
1737         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1738     else
1739       enable_languages=all
1740     fi
1741   else
1742     if test x"${enable_languages}" = x ||
1743        test x"${enable_languages}" = xyes;
1744        then
1745       echo configure.in: --enable-languages needs at least one language argument 1>&2
1746       exit 1
1747     fi
1748   fi
1749   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1750
1751   # 'f95' is the old name for the 'fortran' language. We issue a warning
1752   # and make the substitution.
1753   case ,${enable_languages}, in
1754     *,f95,*)
1755       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1756       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1757       ;;
1758   esac
1759
1760   # First scan to see if an enabled language requires some other language.
1761   # We assume that a given config-lang.in will list all the language
1762   # front ends it requires, even if some are required indirectly.
1763   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1764     case ${lang_frag} in
1765       ..) ;;
1766       # The odd quoting in the next line works around
1767       # an apparent bug in bash 1.12 on linux.
1768       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1769       *)
1770         # From the config-lang.in, get $language, $lang_requires, and
1771         # $lang_requires_boot_languages.
1772         language=
1773         lang_requires=
1774         lang_requires_boot_languages=
1775         . ${lang_frag}
1776         for other in ${lang_requires} ${lang_requires_boot_languages}; do
1777           case ,${enable_languages}, in
1778             *,$other,*) ;;
1779             *,all,*) ;;
1780             *,$language,*)
1781               echo " \`$other' language required by \`$language'; enabling" 1>&2
1782               enable_languages="${enable_languages},${other}"
1783               ;;
1784           esac
1785         done
1786         for other in ${lang_requires_boot_languages} ; do
1787           if test "$other" != "c"; then
1788             case ,${enable_stage1_languages}, in
1789               *,$other,*) ;;
1790               *,all,*) ;;
1791               *)
1792                 case ,${enable_languages}, in
1793                   *,$language,*)
1794                     echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1795                     enable_stage1_languages="$enable_stage1_languages,${other}"
1796                     ;;
1797                 esac
1798                 ;;
1799             esac
1800           fi
1801         done
1802         ;;
1803     esac
1804   done
1805
1806   new_enable_languages=,c,
1807
1808   # If LTO is enabled, add the LTO front end.
1809   extra_host_libiberty_configure_flags=
1810   if test "$enable_lto" = "yes" ; then
1811     case ,${enable_languages}, in
1812       *,lto,*) ;;
1813       *) enable_languages="${enable_languages},lto" ;;
1814     esac
1815     if test "${build_lto_plugin}" = "yes" ; then
1816       configdirs="$configdirs lto-plugin"
1817       extra_host_libiberty_configure_flags=--enable-shared
1818     fi
1819   fi
1820   AC_SUBST(extra_host_libiberty_configure_flags)
1821
1822   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1823   potential_languages=,c,
1824
1825   enabled_target_libs=
1826   disabled_target_libs=
1827
1828   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1829     case ${lang_frag} in
1830       ..) ;;
1831       # The odd quoting in the next line works around
1832       # an apparent bug in bash 1.12 on linux.
1833       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1834       *)
1835         # From the config-lang.in, get $language, $target_libs,
1836         # $lang_dirs, $boot_language, and $build_by_default
1837         language=
1838         target_libs=
1839         lang_dirs=
1840         subdir_requires=
1841         boot_language=no
1842         build_by_default=yes
1843         . ${lang_frag}
1844         if test x${language} = x; then
1845           echo "${lang_frag} doesn't set \$language." 1>&2
1846           exit 1
1847         fi
1848
1849         if test "$language" = "c++" \
1850            && test "$ENABLE_BUILD_WITH_CXX" = "yes"; then
1851           boot_language=yes
1852         fi
1853
1854         case ,${enable_languages}, in
1855           *,${language},*)
1856             # Language was explicitly selected; include it.
1857             add_this_lang=yes
1858             ;;
1859           *,all,*)
1860             # 'all' was selected, select it if it is a default language
1861             add_this_lang=${build_by_default}
1862             ;;
1863           *)
1864             add_this_lang=no
1865             ;;
1866         esac
1867
1868         # Disable languages that need other directories if these aren't available.
1869         for i in $subdir_requires; do
1870           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1871           case ,${enable_languages}, in
1872             *,${language},*)
1873               # Specifically requested language; tell them.
1874               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1875               ;;
1876             *)
1877               # Silently disable.
1878               add_this_lang=unsupported
1879               ;;
1880           esac
1881         done
1882
1883         # Disable Ada if no preexisting GNAT is available.
1884         case ,${enable_languages},:${language}:${have_gnat} in
1885           *,${language},*:ada:no)
1886             # Specifically requested language; tell them.
1887             AC_MSG_ERROR([GNAT is required to build $language])
1888             ;;
1889           *:ada:no)
1890             # Silently disable.
1891             add_this_lang=unsupported
1892             ;;
1893         esac
1894
1895         # Disable a language that is unsupported by the target.
1896         case " $unsupported_languages " in
1897           *" $language "*)
1898             add_this_lang=unsupported
1899             ;;
1900         esac
1901
1902         case $add_this_lang in
1903           unsupported)
1904             # Remove language-dependent dirs.
1905             disabled_target_libs="$disabled_target_libs $target_libs"
1906             noconfigdirs="$noconfigdirs $lang_dirs"
1907             ;;
1908           no)
1909             # Remove language-dependent dirs; still show language as supported.
1910             disabled_target_libs="$disabled_target_libs $target_libs"
1911             noconfigdirs="$noconfigdirs $lang_dirs"
1912             potential_languages="${potential_languages}${language},"
1913             ;;
1914           yes)
1915             new_enable_languages="${new_enable_languages}${language},"
1916             potential_languages="${potential_languages}${language},"
1917             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1918             enabled_target_libs="$enabled_target_libs $target_libs"
1919             case "${boot_language}:,$enable_stage1_languages," in
1920               yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
1921                 # Add to (comma-separated) list of stage 1 languages.
1922                 case ",$stage1_languages," in
1923                   *,$language,* | ,yes, | ,all,) ;;
1924                   *) stage1_languages="${stage1_languages}${language}," ;;
1925                 esac
1926                 # We need to bootstrap any supporting libraries.
1927                 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
1928                 ;;
1929             esac
1930             ;;
1931         esac
1932         ;;
1933     esac
1934   done
1935
1936   # Add target libraries which are only needed for disabled languages
1937   # to noconfigdirs.
1938   if test -n "$disabled_target_libs"; then
1939     for dir in $disabled_target_libs; do
1940       case " $enabled_target_libs " in
1941       *" ${dir} "*) ;;
1942       *) noconfigdirs="$noconfigdirs $dir" ;;
1943       esac
1944     done
1945   fi
1946
1947   AC_ARG_ENABLE(stage1-languages,
1948 [  --enable-stage1-languages@<:@=all@:>@   choose additional languages to build during
1949                           stage1.  Mostly useful for compiler development.],
1950   [case ,${enable_stage1_languages}, in
1951     ,no,|,,)
1952       # Set it to something that will have no effect in the loop below
1953       enable_stage1_languages=c ;;
1954     ,yes,)
1955       enable_stage1_languages=`echo $new_enable_languages | \
1956         sed -e "s/^,//" -e "s/,$//" ` ;;
1957     *,all,*)
1958       enable_stage1_languages=`echo ,$enable_stage1_languages, | \
1959         sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
1960   esac
1961
1962   # Add "good" languages from enable_stage1_languages to stage1_languages,
1963   # while "bad" languages go in missing_languages.  Leave no duplicates.
1964   for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
1965     case $potential_languages in
1966       *,$i,*)
1967         case $stage1_languages in
1968           *,$i,*) ;;
1969           *) stage1_languages="$stage1_languages$i," ;;
1970         esac ;;
1971       *)
1972         case $missing_languages in
1973           *,$i,*) ;;
1974           *) missing_languages="$missing_languages$i," ;;
1975         esac ;;
1976      esac
1977   done])
1978
1979   # Remove leading/trailing commas that were added for simplicity
1980   potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
1981   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1982   stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
1983   new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
1984
1985   if test "x$missing_languages" != x; then
1986     AC_MSG_ERROR([
1987 The following requested languages could not be built: ${missing_languages}
1988 Supported languages are: ${potential_languages}])
1989   fi
1990   if test "x$new_enable_languages" != "x$enable_languages"; then
1991     echo The following languages will be built: ${new_enable_languages}
1992     enable_languages="$new_enable_languages"
1993   fi
1994
1995   AC_SUBST(stage1_languages)
1996   ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
1997 fi
1998
1999 # Handle --disable-<component> generically.
2000 for dir in $configdirs $build_configdirs $target_configdirs ; do
2001   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2002   varname=`echo $dirname | sed -e s/+/_/g`
2003   if eval test x\${enable_${varname}} "=" xno ; then
2004     noconfigdirs="$noconfigdirs $dir"
2005   fi
2006 done
2007
2008 # Check for Boehm's garbage collector
2009 AC_ARG_ENABLE(objc-gc,
2010 [  --enable-objc-gc        enable use of Boehm's garbage collector with the
2011                           GNU Objective-C runtime],
2012 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
2013   *,objc,*:*:yes:*target-boehm-gc*)
2014     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
2015     ;;
2016 esac])
2017
2018 # Make sure we only build Boehm's garbage collector if required.
2019 case ,${enable_languages},:${enable_objc_gc} in
2020   *,objc,*:yes)
2021     # Keep target-boehm-gc if requested for Objective-C.
2022     ;;
2023   *)
2024     # Otherwise remove target-boehm-gc depending on target-libjava.
2025     if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
2026       noconfigdirs="$noconfigdirs target-boehm-gc"
2027     fi
2028     ;;
2029 esac
2030
2031 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2032 # $build_configdirs and $target_configdirs.
2033 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2034
2035 notsupp=""
2036 for dir in . $skipdirs $noconfigdirs ; do
2037   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2038   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2039     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2040     if test -r $srcdir/$dirname/configure ; then
2041       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2042         true
2043       else
2044         notsupp="$notsupp $dir"
2045       fi
2046     fi
2047   fi
2048   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2049     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2050     if test -r $srcdir/$dirname/configure ; then
2051       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2052         true
2053       else
2054         notsupp="$notsupp $dir"
2055       fi
2056     fi
2057   fi
2058   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2059     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2060     if test -r $srcdir/$dirname/configure ; then
2061       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2062         true
2063       else
2064         notsupp="$notsupp $dir"
2065       fi
2066     fi
2067   fi
2068 done
2069
2070 # Sometimes the tools are distributed with libiberty but with no other
2071 # libraries.  In that case, we don't want to build target-libiberty.
2072 # Don't let libgcc imply libiberty either.
2073 if test -n "${target_configdirs}" ; then
2074   libgcc=
2075   others=
2076   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
2077     if test "$i" = "libgcc"; then
2078       libgcc=target-libgcc
2079     elif test "$i" != "libiberty" ; then
2080       if test -r $srcdir/$i/configure ; then
2081         others=yes;
2082         break;
2083       fi
2084     fi
2085   done
2086   if test -z "${others}" ; then
2087     target_configdirs=$libgcc
2088   fi
2089 fi
2090
2091 # Quietly strip out all directories which aren't configurable in this tree.
2092 # This relies on all configurable subdirectories being autoconfiscated, which
2093 # is now the case.
2094 build_configdirs_all="$build_configdirs"
2095 build_configdirs=
2096 for i in ${build_configdirs_all} ; do
2097   j=`echo $i | sed -e s/build-//g`
2098   if test -f ${srcdir}/$j/configure ; then
2099     build_configdirs="${build_configdirs} $i"
2100   fi
2101 done
2102
2103 configdirs_all="$configdirs"
2104 configdirs=
2105 for i in ${configdirs_all} ; do
2106   if test -f ${srcdir}/$i/configure ; then
2107     configdirs="${configdirs} $i"
2108   fi
2109 done
2110
2111 target_configdirs_all="$target_configdirs"
2112 target_configdirs=
2113 for i in ${target_configdirs_all} ; do
2114   j=`echo $i | sed -e s/target-//g`
2115   if test -f ${srcdir}/$j/configure ; then
2116     target_configdirs="${target_configdirs} $i"
2117   fi
2118 done
2119
2120 # Produce a warning message for the subdirs we can't configure.
2121 # This isn't especially interesting in the Cygnus tree, but in the individual
2122 # FSF releases, it's important to let people know when their machine isn't
2123 # supported by the one or two programs in a package.
2124
2125 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2126   # If $appdirs is non-empty, at least one of those directories must still
2127   # be configured, or we error out.  (E.g., if the gas release supports a
2128   # specified target in some subdirs but not the gas subdir, we shouldn't
2129   # pretend that all is well.)
2130   if test -n "$appdirs" ; then
2131     for dir in $appdirs ; do
2132       if test -r $dir/Makefile.in ; then
2133         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2134           appdirs=""
2135           break
2136         fi
2137         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2138           appdirs=""
2139           break
2140         fi
2141       fi
2142     done
2143     if test -n "$appdirs" ; then
2144       echo "*** This configuration is not supported by this package." 1>&2
2145       exit 1
2146     fi
2147   fi
2148   # Okay, some application will build, or we don't care to check.  Still
2149   # notify of subdirs not getting built.
2150   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2151   echo "    ${notsupp}" 1>&2
2152   echo "    (Any other directories should still work fine.)" 1>&2
2153 fi
2154
2155 case "$host" in
2156   *msdosdjgpp*)
2157     enable_gdbtk=no ;;
2158 esac
2159
2160 # To find our prefix, in gcc_cv_tool_prefix.
2161 ACX_TOOL_DIRS
2162
2163 copy_dirs=
2164
2165 AC_ARG_WITH([build-sysroot],
2166   [  --with-build-sysroot=SYSROOT
2167                           use sysroot as the system root during the build],
2168   [if test x"$withval" != x ; then
2169      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2170    fi],
2171   [SYSROOT_CFLAGS_FOR_TARGET=])
2172 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2173
2174 AC_ARG_WITH([debug-prefix-map],
2175   [  --with-debug-prefix-map='A=B C=D ...'
2176                              map A to B, C to D ... in debug information],
2177   [if test x"$withval" != x; then
2178      DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2179      for debug_map in $withval; do
2180        DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2181      done
2182    fi],
2183   [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2184 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2185
2186 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2187 # might be empty or "-g".  We don't require a C++ compiler, so CXXFLAGS
2188 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2189 # We want to ensure that TARGET libraries (which we know are built with
2190 # gcc) are built with "-O2 -g", so include those options when setting
2191 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2192 if test "x$CFLAGS_FOR_TARGET" = x; then
2193   CFLAGS_FOR_TARGET=$CFLAGS
2194   case " $CFLAGS " in
2195     *" -O2 "*) ;;
2196     *) CFLAGS_FOR_TARGET="-O2 $CFLAGS" ;;
2197   esac
2198   case " $CFLAGS " in
2199     *" -g "* | *" -g3 "*) ;;
2200     *) CFLAGS_FOR_TARGET="-g $CFLAGS" ;;
2201   esac
2202 fi
2203 AC_SUBST(CFLAGS_FOR_TARGET)
2204
2205 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2206   CXXFLAGS_FOR_TARGET=$CXXFLAGS
2207   case " $CXXFLAGS " in
2208     *" -O2 "*) ;;
2209     *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS" ;;
2210   esac
2211   case " $CXXFLAGS " in
2212     *" -g "* | *" -g3 "*) ;;
2213     *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS" ;;
2214   esac
2215 fi
2216 AC_SUBST(CXXFLAGS_FOR_TARGET)
2217
2218 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
2219 # the named directory are copied to $(tooldir)/sys-include.
2220 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2221   if test x${is_cross_compiler} = xno ; then
2222     echo 1>&2 '***' --with-headers is only supported when cross compiling
2223     exit 1
2224   fi
2225   if test x"${with_headers}" != xyes ; then
2226     x=${gcc_cv_tool_prefix}
2227     copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2228   fi
2229 fi
2230
2231 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
2232 # the name directories are copied to $(tooldir)/lib.  Multiple directories
2233 # are permitted.
2234 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2235   if test x${is_cross_compiler} = xno ; then
2236     echo 1>&2 '***' --with-libs is only supported when cross compiling
2237     exit 1
2238   fi
2239   if test x"${with_libs}" != xyes ; then
2240     # Copy the libraries in reverse order, so that files in the first named
2241     # library override files in subsequent libraries.
2242     x=${gcc_cv_tool_prefix}
2243     for l in ${with_libs}; do
2244       copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2245     done
2246   fi
2247 fi
2248
2249 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2250 #
2251 # This is done by determining whether or not the appropriate directory
2252 # is available, and by checking whether or not specific configurations
2253 # have requested that this magic not happen.
2254 #
2255 # The command line options always override the explicit settings in
2256 # configure.in, and the settings in configure.in override this magic.
2257 #
2258 # If the default for a toolchain is to use GNU as and ld, and you don't
2259 # want to do that, then you should use the --without-gnu-as and
2260 # --without-gnu-ld options for the configure script.  Similarly, if
2261 # the default is to use the included zlib and you don't want to do that,
2262 # you should use the --with-system-zlib option for the configure script.
2263
2264 if test x${use_gnu_as} = x &&
2265    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2266   with_gnu_as=yes
2267   extra_host_args="$extra_host_args --with-gnu-as"
2268 fi
2269
2270 if test x${use_gnu_ld} = x &&
2271    echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2272   with_gnu_ld=yes
2273   extra_host_args="$extra_host_args --with-gnu-ld"
2274 fi
2275
2276 if test x${use_included_zlib} = x &&
2277    echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2278   :
2279 else
2280   with_system_zlib=yes
2281   extra_host_args="$extra_host_args --with-system-zlib"
2282 fi
2283
2284 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2285 # can detect this case.
2286
2287 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2288   with_newlib=yes
2289   extra_host_args="$extra_host_args --with-newlib"
2290 fi
2291
2292 # Handle ${copy_dirs}
2293 set fnord ${copy_dirs}
2294 shift
2295 while test $# != 0 ; do
2296   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2297     :
2298   else
2299     echo Copying $1 to $2
2300
2301     # Use the install script to create the directory and all required
2302     # parent directories.
2303     if test -d $2 ; then
2304       :
2305     else
2306       echo >config.temp
2307       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2308     fi
2309
2310     # Copy the directory, assuming we have tar.
2311     # FIXME: Should we use B in the second tar?  Not all systems support it.
2312     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2313
2314     # It is the responsibility of the user to correctly adjust all
2315     # symlinks.  If somebody can figure out how to handle them correctly
2316     # here, feel free to add the code.
2317
2318     echo $1 > $2/COPIED
2319   fi
2320   shift; shift
2321 done
2322
2323 # Determine a target-dependent exec_prefix that the installed
2324 # gcc will search in.  Keep this list sorted by triplet, with
2325 # the *-*-osname triplets last.
2326 md_exec_prefix=
2327 case "${target}" in
2328   alpha*-*-*vms*)
2329     md_exec_prefix=/gnu/lib/gcc-lib
2330     ;;
2331   i[[34567]]86-pc-msdosdjgpp*)
2332     md_exec_prefix=/dev/env/DJDIR/bin
2333     ;;
2334   i[[34567]]86-*-sco3.2v5*)
2335     if test $with_gnu_as = yes; then
2336       md_exec_prefix=/usr/gnu/bin
2337     else
2338       md_exec_prefix=/usr/ccs/bin/elf
2339     fi
2340     ;;
2341
2342   mn10300-*-* | \
2343   powerpc-*-chorusos* | \
2344   powerpc*-*-eabi* | \
2345   powerpc*-*-sysv* | \
2346   powerpc*-*-kaos* | \
2347   s390x-ibm-tpf*)
2348     md_exec_prefix=/usr/ccs/bin
2349     ;;
2350   sparc64-*-elf*)
2351     ;;
2352   v850*-*-*)
2353     md_exec_prefix=/usr/ccs/bin
2354     ;;
2355   xtensa*-*-elf*)
2356     ;;
2357
2358   *-*-beos* | \
2359   *-*-elf* | \
2360   *-*-hpux* | \
2361   *-*-netware* | \
2362   *-*-nto-qnx* | \
2363   *-*-rtems* | \
2364   *-*-solaris2* | \
2365   *-*-sysv[[45]]* | \
2366   *-*-vxworks* | \
2367   *-wrs-windiss)
2368     md_exec_prefix=/usr/ccs/bin
2369     ;;
2370 esac
2371
2372 extra_arflags_for_target=
2373 extra_nmflags_for_target=
2374 extra_ranlibflags_for_target=
2375 target_makefile_frag=/dev/null
2376 case "${target}" in
2377   mep*-*-*)
2378     target_makefile_frag="config/mt-mep"
2379     ;;
2380   spu-*-*)
2381     target_makefile_frag="config/mt-spu"
2382     ;;
2383   mips*-sde-elf*)
2384     target_makefile_frag="config/mt-sde"
2385     ;;
2386   mipsisa*-*-elfoabi*)
2387     target_makefile_frag="config/mt-mips-elfoabi"
2388     ;;
2389   mips*-*-*linux* | mips*-*-gnu*)
2390     target_makefile_frag="config/mt-mips-gnu"
2391     ;;
2392   *-*-netware*)
2393     target_makefile_frag="config/mt-netware"
2394     ;;
2395   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2396     target_makefile_frag="config/mt-gnu"
2397     ;;
2398   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2399     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2400     # commands to handle both 32-bit and 64-bit objects.  These flags are
2401     # harmless if we're using GNU nm or ar.
2402     extra_arflags_for_target=" -X32_64"
2403     extra_nmflags_for_target=" -B -X32_64"
2404     ;;
2405   *-*-darwin[[3-9]]*)
2406     # ranlib before Darwin10 requires the -c flag to look at common symbols.
2407     extra_ranlibflags_for_target=" -c"
2408     ;;
2409   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
2410     target_makefile_frag="config/mt-wince"
2411     ;;
2412 esac
2413
2414 alphaieee_frag=/dev/null
2415 case $target in
2416   alpha*-*-*)
2417     # This just makes sure to use the -mieee option to build target libs.
2418     # This should probably be set individually by each library.
2419     alphaieee_frag="config/mt-alphaieee"
2420     ;;
2421 esac
2422
2423 # If --enable-target-optspace always use -Os instead of -O2 to build
2424 # the target libraries, similarly if it is not specified, use -Os
2425 # on selected platforms.
2426 ospace_frag=/dev/null
2427 case "${enable_target_optspace}:${target}" in
2428   yes:*)
2429     ospace_frag="config/mt-ospace"
2430     ;;
2431   :d30v-*)
2432     ospace_frag="config/mt-d30v"
2433     ;;
2434   :m32r-* | :d10v-* | :fr30-*)
2435     ospace_frag="config/mt-ospace"
2436     ;;
2437   no:* | :*)
2438     ;;
2439   *)
2440     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2441     ;;
2442 esac
2443
2444 # Default to using --with-stabs for certain targets.
2445 if test x${with_stabs} = x ; then
2446   case "${target}" in
2447   mips*-*-irix[[56]]*)
2448     ;;
2449   mips*-*-* | alpha*-*-osf*)
2450     with_stabs=yes;
2451     extra_host_args="${extra_host_args} --with-stabs"
2452     ;;
2453   esac
2454 fi
2455
2456 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
2457 # them automatically.
2458 case "${host}" in
2459   hppa*64*-*-hpux11*)
2460     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
2461     ;;
2462 esac
2463
2464 # Some systems (e.g., one of the i386-aix systems the gas testers are
2465 # using) don't handle "\$" correctly, so don't use it here.
2466 tooldir='${exec_prefix}'/${target_noncanonical}
2467 build_tooldir=${tooldir}
2468
2469 # Create a .gdbinit file which runs the one in srcdir
2470 # and tells GDB to look there for source files.
2471
2472 if test -r ${srcdir}/.gdbinit ; then
2473   case ${srcdir} in
2474     .) ;;
2475     *) cat > ./.gdbinit <<EOF
2476 # ${NO_EDIT}
2477 dir ${srcdir}
2478 dir .
2479 source ${srcdir}/.gdbinit
2480 EOF
2481     ;;
2482   esac
2483 fi
2484
2485 # Make sure that the compiler is able to generate an executable.  If it
2486 # can't, we are probably in trouble.  We don't care whether we can run the
2487 # executable--we might be using a cross compiler--we only care whether it
2488 # can be created.  At this point the main configure script has set CC.
2489 we_are_ok=no
2490 echo "int main () { return 0; }" > conftest.c
2491 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2492 if test $? = 0 ; then
2493   if test -s conftest || test -s conftest.exe ; then
2494     we_are_ok=yes
2495   fi
2496 fi
2497 case $we_are_ok in
2498   no)
2499     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2500     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2501     rm -f conftest*
2502     exit 1
2503     ;;
2504 esac
2505 rm -f conftest*
2506
2507 # The Solaris /usr/ucb/cc compiler does not appear to work.
2508 case "${host}" in
2509   sparc-sun-solaris2*)
2510       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
2511       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
2512           could_use=
2513           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
2514           if test -d /opt/cygnus/bin ; then
2515               if test "$could_use" = "" ; then
2516                   could_use="/opt/cygnus/bin"
2517               else
2518                   could_use="$could_use or /opt/cygnus/bin"
2519               fi
2520           fi
2521         if test "$could_use" = "" ; then
2522             echo "Warning: compilation may fail because you're using"
2523             echo "/usr/ucb/cc.  You should change your PATH or CC "
2524             echo "variable and rerun configure."
2525         else
2526             echo "Warning: compilation may fail because you're using"
2527             echo "/usr/ucb/cc, when you should use the C compiler from"
2528             echo "$could_use.  You should change your"
2529             echo "PATH or CC variable and rerun configure."
2530         fi
2531       fi
2532   ;;
2533 esac
2534
2535 # Decide which environment variable is used to find dynamic libraries.
2536 case "${host}" in
2537   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2538   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2539   *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2540   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2541 esac
2542
2543 # On systems where the dynamic library environment variable is PATH,
2544 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2545 # built executables to PATH.
2546 if test "$RPATH_ENVVAR" = PATH; then
2547   GCC_SHLIB_SUBDIR=/shlib
2548 else
2549   GCC_SHLIB_SUBDIR=
2550 fi
2551
2552 # Record target_configdirs and the configure arguments for target and
2553 # build configuration in Makefile.
2554 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2555 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2556
2557 # If we are building libgomp, bootstrap it.
2558 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2559   bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2560 fi
2561
2562 # Determine whether gdb needs tk/tcl or not.
2563 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2564 # and in that case we want gdb to be built without tk.  Ugh!
2565 # In fact I believe gdb is the *only* package directly dependent on tk,
2566 # so we should be able to put the 'maybe's in unconditionally and
2567 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
2568 # 100% sure that that's safe though.
2569
2570 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2571 case "$enable_gdbtk" in
2572   no)
2573     GDB_TK="" ;;
2574   yes)
2575     GDB_TK="${gdb_tk}" ;;
2576   *)
2577     # Only add the dependency on gdbtk when GDBtk is part of the gdb
2578     # distro.  Eventually someone will fix this and move Insight, nee
2579     # gdbtk to a separate directory.
2580     if test -d ${srcdir}/gdb/gdbtk ; then
2581       GDB_TK="${gdb_tk}"
2582     else
2583       GDB_TK=""
2584     fi
2585     ;;
2586 esac
2587 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2588 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2589
2590 # Strip out unwanted targets.
2591
2592 # While at that, we remove Makefiles if we were started for recursive
2593 # configuration, so that the top-level Makefile reconfigures them,
2594 # like we used to do when configure itself was recursive.
2595
2596 # Loop over modules.  We used to use the "$extrasub" feature from Autoconf
2597 # but now we're fixing up the Makefile ourselves with the additional
2598 # commands passed to AC_CONFIG_FILES.  Use separate variables
2599 # extrasub-{build,host,target} not because there is any reason to split
2600 # the substitutions up that way, but only to remain below the limit of
2601 # 99 commands in a script, for HP-UX sed.
2602 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2603
2604 AC_ARG_ENABLE([bootstrap],
2605 [  --enable-bootstrap      enable bootstrapping @<:@yes if native build@:>@],,
2606 enable_bootstrap=default)
2607
2608 # Issue errors and warnings for invalid/strange bootstrap combinations.
2609 case "$configdirs" in
2610   *gcc*) have_compiler=yes ;;
2611   *) have_compiler=no ;;
2612 esac
2613
2614 case "$have_compiler:$host:$target:$enable_bootstrap" in
2615   *:*:*:no) ;;
2616
2617   # Default behavior.  Enable bootstrap if we have a compiler
2618   # and we are in a native configuration.
2619   yes:$build:$build:default)
2620     enable_bootstrap=yes ;;
2621
2622   *:*:*:default)
2623     enable_bootstrap=no ;;
2624
2625   # We have a compiler and we are in a native configuration, bootstrap is ok
2626   yes:$build:$build:yes)
2627     ;;
2628
2629   # Other configurations, but we have a compiler.  Assume the user knows
2630   # what he's doing.
2631   yes:*:*:yes)
2632     AC_MSG_WARN([trying to bootstrap a cross compiler])
2633     ;;
2634
2635   # No compiler: if they passed --enable-bootstrap explicitly, fail
2636   no:*:*:yes)
2637     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
2638
2639   # Fail if wrong command line
2640   *)
2641     AC_MSG_ERROR([invalid option for --enable-bootstrap])
2642     ;;
2643 esac
2644
2645 case ",$enable_languages,:$ENABLE_BUILD_WITH_CXX:$enable_bootstrap" in
2646   *,c++,*:yes:yes) ;;
2647   *:yes:yes)
2648     AC_MSG_ERROR([bootstrapping with --enable-build-with-cxx requires c++ in --enable-languages])
2649     ;;
2650 esac
2651
2652 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2653   yes:yes:*\ gold\ *:*,c++,*) ;;
2654   yes:yes:*\ gold\ *:*)
2655     AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2656     ;;
2657 esac
2658
2659 # Adjust the toplevel makefile according to whether bootstrap was selected.
2660 case $enable_bootstrap in
2661   yes)
2662     bootstrap_suffix=bootstrap
2663     BUILD_CONFIG=bootstrap-debug
2664     ;;
2665   no)
2666     bootstrap_suffix=no-bootstrap
2667     BUILD_CONFIG=
2668     ;;
2669 esac
2670
2671 AC_MSG_CHECKING(for default BUILD_CONFIG)
2672
2673 AC_ARG_WITH([build-config],
2674   [--with-build-config='NAME NAME2...'
2675                           Use config/NAME.mk build configuration],
2676   [case $with_build_config in
2677    yes) with_build_config= ;;
2678    no) with_build_config= BUILD_CONFIG= ;;
2679    esac])
2680
2681 if test "x${with_build_config}" != x; then
2682   BUILD_CONFIG=$with_build_config
2683 else
2684   case $BUILD_CONFIG in
2685   bootstrap-debug)
2686     if echo "int f (void) { return 0; }" > conftest.c &&
2687        ${CC} -c conftest.c &&
2688        mv conftest.o conftest.o.g0 &&
2689        ${CC} -c -g conftest.c &&
2690        mv conftest.o conftest.o.g &&
2691        ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2692       :
2693     else
2694       BUILD_CONFIG=
2695     fi
2696     rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2697     ;;
2698   esac
2699 fi
2700 AC_MSG_RESULT($BUILD_CONFIG)
2701 AC_SUBST(BUILD_CONFIG)
2702
2703 extrasub_build=
2704 for module in ${build_configdirs} ; do
2705   if test -z "${no_recursion}" \
2706      && test -f ${build_subdir}/${module}/Makefile; then
2707     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2708     rm -f ${build_subdir}/${module}/Makefile
2709   fi
2710   extrasub_build="$extrasub_build
2711 /^@if build-$module\$/d
2712 /^@endif build-$module\$/d
2713 /^@if build-$module-$bootstrap_suffix\$/d
2714 /^@endif build-$module-$bootstrap_suffix\$/d"
2715 done
2716 extrasub_host=
2717 for module in ${configdirs} ; do
2718   if test -z "${no_recursion}"; then
2719     for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2720       if test -f ${file}; then
2721         echo 1>&2 "*** removing ${file} to force reconfigure"
2722         rm -f ${file}
2723       fi
2724     done
2725   fi
2726   extrasub_host="$extrasub_host
2727 /^@if $module\$/d
2728 /^@endif $module\$/d
2729 /^@if $module-$bootstrap_suffix\$/d
2730 /^@endif $module-$bootstrap_suffix\$/d"
2731 done
2732 extrasub_target=
2733 for module in ${target_configdirs} ; do
2734   if test -z "${no_recursion}" \
2735      && test -f ${target_subdir}/${module}/Makefile; then
2736     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2737     rm -f ${target_subdir}/${module}/Makefile
2738   fi
2739
2740   # We only bootstrap target libraries listed in bootstrap_target_libs.
2741   case $bootstrap_target_libs in
2742     *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2743     *) target_bootstrap_suffix=no-bootstrap ;;
2744   esac
2745
2746   extrasub_target="$extrasub_target
2747 /^@if target-$module\$/d
2748 /^@endif target-$module\$/d
2749 /^@if target-$module-$target_bootstrap_suffix\$/d
2750 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2751 done
2752
2753 # Do the final fixup along with target modules.
2754 extrasub_target="$extrasub_target
2755 /^@if /,/^@endif /d"
2756
2757 # Create the serialization dependencies.  This uses a temporary file.
2758
2759 AC_ARG_ENABLE([serial-configure],
2760 [  --enable-serial-@<:@{host,target,build}-@:>@configure
2761                           force sequential configuration of
2762                           sub-packages for the host, target or build
2763                           machine, or all sub-packages])
2764
2765 case ${enable_serial_configure} in
2766   yes)
2767     enable_serial_build_configure=yes
2768     enable_serial_host_configure=yes
2769     enable_serial_target_configure=yes
2770     ;;
2771 esac
2772
2773 # These force 'configure's to be done one at a time, to avoid problems
2774 # with contention over a shared config.cache.
2775 rm -f serdep.tmp
2776 echo '# serdep.tmp' > serdep.tmp
2777 olditem=
2778 test "x${enable_serial_build_configure}" = xyes &&
2779 for item in ${build_configdirs} ; do
2780   case ${olditem} in
2781     "") ;;
2782     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2783   esac
2784   olditem=${item}
2785 done
2786 olditem=
2787 test "x${enable_serial_host_configure}" = xyes &&
2788 for item in ${configdirs} ; do
2789   case ${olditem} in
2790     "") ;;
2791     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2792   esac
2793   olditem=${item}
2794 done
2795 olditem=
2796 test "x${enable_serial_target_configure}" = xyes &&
2797 for item in ${target_configdirs} ; do
2798   case ${olditem} in
2799     "") ;;
2800     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2801   esac
2802   olditem=${item}
2803 done
2804 serialization_dependencies=serdep.tmp
2805 AC_SUBST_FILE(serialization_dependencies)
2806
2807 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
2808 # target, nonopt, and variable assignments.  These are the ones we
2809 # might not want to pass down to subconfigures.  The exception being
2810 # --cache-file=/dev/null, which is used to turn off the use of cache
2811 # files altogether, and which should be passed on to subconfigures.
2812 # Also strip program-prefix, program-suffix, and program-transform-name,
2813 # so that we can pass down a consistent program-transform-name.
2814 baseargs=
2815 keep_next=no
2816 skip_next=no
2817 eval "set -- $ac_configure_args"
2818 for ac_arg
2819 do
2820   if test X"$skip_next" = X"yes"; then
2821     skip_next=no
2822     continue
2823   fi
2824   if test X"$keep_next" = X"yes"; then
2825     case $ac_arg in
2826       *\'*)
2827         ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2828     esac
2829     baseargs="$baseargs '$ac_arg'"
2830     keep_next=no
2831     continue
2832   fi
2833
2834   # Handle separated arguments.  Based on the logic generated by
2835   # autoconf 2.59.
2836   case $ac_arg in
2837     *=* | --config-cache | -C | -disable-* | --disable-* \
2838       | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2839       | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2840       | -with-* | --with-* | -without-* | --without-* | --x)
2841       separate_arg=no
2842       ;;
2843     -*)
2844       separate_arg=yes
2845       ;;
2846     *)
2847       separate_arg=no
2848       ;;
2849   esac
2850
2851   case "$ac_arg" in
2852     --cache-file=/dev/null | \
2853     -cache-file=/dev/null )
2854       # Handled here to avoid the test to skip args below.
2855       baseargs="$baseargs '$ac_arg'"
2856       # Assert: $separate_arg should always be no.
2857       keep_next=$separate_arg
2858       ;;
2859     --no*)
2860       continue
2861       ;;
2862     --c* | \
2863     --sr* | \
2864     --ho* | \
2865     --bu* | \
2866     --t* | \
2867     --program-* | \
2868     -cache_file* | \
2869     -srcdir* | \
2870     -host* | \
2871     -build* | \
2872     -target* | \
2873     -program-prefix* | \
2874     -program-suffix* | \
2875     -program-transform-name* )
2876       skip_next=$separate_arg
2877       continue
2878       ;;
2879     -*)
2880       # An option.  Add it.
2881       case $ac_arg in
2882         *\'*)
2883           ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2884       esac
2885       baseargs="$baseargs '$ac_arg'"
2886       keep_next=$separate_arg
2887       ;;
2888     *)
2889       # Either a variable assignment, or a nonopt (triplet).  Don't
2890       # pass it down; let the Makefile handle this.
2891       continue
2892       ;;
2893   esac
2894 done
2895 # Remove the initial space we just introduced and, as these will be
2896 # expanded by make, quote '$'.
2897 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2898
2899 # Add in --program-transform-name, after --program-prefix and
2900 # --program-suffix have been applied to it.  Autoconf has already
2901 # doubled dollar signs and backslashes in program_transform_name; we want
2902 # the backslashes un-doubled, and then the entire thing wrapped in single
2903 # quotes, because this will be expanded first by make and then by the shell.
2904 # Also, because we want to override the logic in subdir configure scripts to
2905 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2906 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2907 ${program_transform_name}
2908 EOF_SED
2909 gcc_transform_name=`cat conftestsed.out`
2910 rm -f conftestsed.out
2911 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2912 if test "$silent" = yes; then
2913   baseargs="$baseargs --silent"
2914 fi
2915 baseargs="$baseargs --disable-option-checking"
2916
2917 # Record and document user additions to sub configure arguments.
2918 AC_ARG_VAR([build_configargs],
2919            [additional configure arguments for build directories])
2920 AC_ARG_VAR([host_configargs],
2921            [additional configure arguments for host directories])
2922 AC_ARG_VAR([target_configargs],
2923            [additional configure arguments for target directories])
2924
2925 # For the build-side libraries, we just need to pretend we're native,
2926 # and not use the same cache file.  Multilibs are neither needed nor
2927 # desired.
2928 build_configargs="$build_configargs --cache-file=../config.cache ${baseargs}"
2929
2930 # For host modules, accept cache file option, or specification as blank.
2931 case "${cache_file}" in
2932 "") # empty
2933   cache_file_option="" ;;
2934 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2935   cache_file_option="--cache-file=${cache_file}" ;;
2936 *) # relative path
2937   cache_file_option="--cache-file=../${cache_file}" ;;
2938 esac
2939
2940 # Host dirs don't like to share a cache file either, horribly enough.
2941 # This seems to be due to autoconf 2.5x stupidity.
2942 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
2943
2944 target_configargs="$target_configargs ${baseargs}"
2945
2946 # Passing a --with-cross-host argument lets the target libraries know
2947 # whether they are being built with a cross-compiler or being built
2948 # native.  However, it would be better to use other mechanisms to make the
2949 # sorts of decisions they want to make on this basis.  Please consider
2950 # this option to be deprecated.  FIXME.
2951 if test x${is_cross_compiler} = xyes ; then
2952   target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
2953 fi
2954
2955 # Default to --enable-multilib.
2956 if test x${enable_multilib} = x ; then
2957   target_configargs="--enable-multilib ${target_configargs}"
2958 fi
2959
2960 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2961 # changed from the earlier setting of with_newlib.
2962 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2963   target_configargs="--with-newlib ${target_configargs}"
2964 fi
2965
2966 # Different target subdirs use different values of certain variables
2967 # (notably CXX).  Worse, multilibs use *lots* of different values.
2968 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2969 # it doesn't automatically accept command-line overrides of them.
2970 # This means it's not safe for target subdirs to share a cache file,
2971 # which is disgusting, but there you have it.  Hopefully this can be
2972 # fixed in future.  It's still worthwhile to use a cache file for each
2973 # directory.  I think.
2974
2975 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2976 # We need to pass --target, as newer autoconf's requires consistency
2977 # for target_alias and gcc doesn't manage it consistently.
2978 target_configargs="--cache-file=./config.cache ${target_configargs}"
2979
2980 FLAGS_FOR_TARGET=
2981 case " $target_configdirs " in
2982  *" newlib "*)
2983   case " $target_configargs " in
2984   *" --with-newlib "*)
2985    case "$target" in
2986     *-cygwin*)
2987       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/include -isystem $$s/winsup/cygwin/include -isystem $$s/winsup/w32api/include'
2988       ;;
2989    esac
2990
2991    # If we're not building GCC, don't discard standard headers.
2992    if test -d ${srcdir}/gcc; then
2993      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2994
2995      if test "${build}" != "${host}"; then
2996        # On Canadian crosses, CC_FOR_TARGET will have already been set
2997        # by `configure', so we won't have an opportunity to add -Bgcc/
2998        # to it.  This is right: we don't want to search that directory
2999        # for binaries, but we want the header files in there, so add
3000        # them explicitly.
3001        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3002
3003        # Someone might think of using the pre-installed headers on
3004        # Canadian crosses, in case the installed compiler is not fully
3005        # compatible with the compiler being built.  In this case, it
3006        # would be better to flag an error than risking having
3007        # incompatible object files being constructed.  We can't
3008        # guarantee that an error will be flagged, but let's hope the
3009        # compiler will do it, when presented with incompatible header
3010        # files.
3011      fi
3012    fi
3013
3014    case "${target}-${is_cross_compiler}" in
3015    i[[3456789]]86-*-linux*-no)
3016       # Here host == target, so we don't need to build gcc,
3017       # so we don't want to discard standard headers.
3018       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3019       ;;
3020    *)
3021       # If we're building newlib, use its generic headers last, but search
3022       # for any libc-related directories first (so make it the last -B
3023       # switch).
3024       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3025
3026       # If we're building libgloss, find the startup file, simulator library
3027       # and linker script.
3028       case " $target_configdirs " in
3029         *" libgloss "*)
3030         # Look for startup file, simulator library and maybe linker script.
3031         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3032         # Look for libnosys.a in case the target needs it.
3033         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3034         # Most targets have the linker script in the source directory.
3035         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3036         ;;
3037       esac
3038       ;;
3039    esac
3040    ;;
3041   esac
3042   ;;
3043 esac
3044
3045 case "$target" in
3046   x86_64-*mingw* | *-w64-mingw*)
3047   # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3048   # however, use a symlink named 'mingw' in ${prefix} .
3049     FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3050     ;;
3051   *-mingw*)
3052   # MinGW can't be handled as Cygwin above since it does not use newlib.
3053     FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3054     ;;
3055 esac
3056
3057 # Allow the user to override the flags for
3058 # our build compiler if desired.
3059 if test x"${build}" = x"${host}" ; then
3060   CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3061   CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3062   LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3063 fi
3064
3065 # On Canadian crosses, we'll be searching the right directories for
3066 # the previously-installed cross compiler, so don't bother to add
3067 # flags for directories within the install tree of the compiler
3068 # being built; programs in there won't even run.
3069 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3070   # Search for pre-installed headers if nothing else fits.
3071   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3072 fi
3073
3074 if test "x${use_gnu_ld}" = x &&
3075    echo " ${configdirs} " | grep " ld " > /dev/null ; then
3076   # Arrange for us to find uninstalled linker scripts.
3077   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3078 fi
3079
3080 # Search for other target-specific linker scripts and such.
3081 case "${target}" in
3082   mep*)
3083     FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3084     ;;
3085 esac
3086
3087 # Makefile fragments.
3088 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3089 do
3090   eval fragval=\$$frag
3091   if test $fragval != /dev/null; then
3092     eval $frag=${srcdir}/$fragval
3093   fi
3094 done
3095 AC_SUBST_FILE(host_makefile_frag)
3096 AC_SUBST_FILE(target_makefile_frag)
3097 AC_SUBST_FILE(alphaieee_frag)
3098 AC_SUBST_FILE(ospace_frag)
3099
3100 # Miscellanea: directories, flags, etc.
3101 AC_SUBST(RPATH_ENVVAR)
3102 AC_SUBST(GCC_SHLIB_SUBDIR)
3103 AC_SUBST(tooldir)
3104 AC_SUBST(build_tooldir)
3105 AC_SUBST(CONFIGURE_GDB_TK)
3106 AC_SUBST(GDB_TK)
3107 AC_SUBST(INSTALL_GDB_TK)
3108
3109 # Build module lists & subconfigure args.
3110 AC_SUBST(build_configargs)
3111 AC_SUBST(build_configdirs)
3112
3113 # Host module lists & subconfigure args.
3114 AC_SUBST(host_configargs)
3115 AC_SUBST(configdirs)
3116 AC_SUBST(target_configdirs)
3117
3118 # Target module lists & subconfigure args.
3119 AC_SUBST(target_configargs)
3120
3121
3122 # Build tools.
3123 AC_SUBST(AR_FOR_BUILD)
3124 AC_SUBST(AS_FOR_BUILD)
3125 AC_SUBST(CC_FOR_BUILD)
3126 AC_SUBST(CFLAGS_FOR_BUILD)
3127 AC_SUBST(CXXFLAGS_FOR_BUILD)
3128 AC_SUBST(CXX_FOR_BUILD)
3129 AC_SUBST(DLLTOOL_FOR_BUILD)
3130 AC_SUBST(GCJ_FOR_BUILD)
3131 AC_SUBST(GFORTRAN_FOR_BUILD)
3132 AC_SUBST(GOC_FOR_BUILD)
3133 AC_SUBST(LDFLAGS_FOR_BUILD)
3134 AC_SUBST(LD_FOR_BUILD)
3135 AC_SUBST(NM_FOR_BUILD)
3136 AC_SUBST(RANLIB_FOR_BUILD)
3137 AC_SUBST(WINDMC_FOR_BUILD)
3138 AC_SUBST(WINDRES_FOR_BUILD)
3139 AC_SUBST(config_shell)
3140
3141 # Generate default definitions for YACC, M4, LEX and other programs that run
3142 # on the build machine.  These are used if the Makefile can't locate these
3143 # programs in objdir.
3144 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3145
3146 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3147 case " $build_configdirs " in
3148   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3149   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
3150 esac
3151
3152 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3153 case " $build_configdirs " in
3154   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3155 esac
3156
3157 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3158 case " $build_configdirs " in
3159   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3160 esac
3161
3162 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3163 case " $build_configdirs " in
3164   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3165   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3166 esac
3167
3168 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3169 case " $build_configdirs " in
3170   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3171 esac
3172
3173 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3174 case " $build_configdirs " in
3175   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3176   *)
3177 changequote(,)
3178     # For an installed makeinfo, we require it to be from texinfo 4.7 or
3179     # higher, else we use the "missing" dummy.
3180     if ${MAKEINFO} --version \
3181        | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3182       :
3183     else
3184       MAKEINFO="$MISSING makeinfo"
3185     fi
3186     ;;
3187 changequote([,])
3188 esac
3189
3190 # FIXME: expect and dejagnu may become build tools?
3191
3192 AC_CHECK_PROGS(EXPECT, expect, expect)
3193 case " $configdirs " in
3194   *" expect "*)
3195     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3196     ;;
3197 esac
3198
3199 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3200 case " $configdirs " in
3201   *" dejagnu "*)
3202     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3203     ;;
3204 esac
3205
3206
3207 # Host tools.
3208 NCN_STRICT_CHECK_TOOLS(AR, ar)
3209 NCN_STRICT_CHECK_TOOLS(AS, as)
3210 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3211 NCN_STRICT_CHECK_TOOLS(LD, ld)
3212 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3213 NCN_STRICT_CHECK_TOOLS(NM, nm)
3214 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3215 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3216 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3217 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3218 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3219 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3220 AC_SUBST(CC)
3221 AC_SUBST(CXX)
3222 AC_SUBST(CFLAGS)
3223 AC_SUBST(CXXFLAGS)
3224
3225 # Target tools.
3226 AC_ARG_WITH([build-time-tools],
3227   [  --with-build-time-tools=PATH
3228                           use given path to find target tools during the build],
3229   [case x"$withval" in
3230      x/*) ;;
3231      *)
3232        with_build_time_tools=
3233        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3234        ;;
3235    esac],
3236   [with_build_time_tools=])
3237
3238 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3239 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3240 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3241 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3242 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3243 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3244
3245 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3246 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3247 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3248 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3249 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3250 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3251 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3252 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3253 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3254 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3255 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3256
3257 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3258
3259 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3260 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3261 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3262 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3263 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3264                 [gcc/g++ -B$$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],
3265                 c++)
3266 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3267                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
3268                 c++)
3269 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3270 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3271 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
3272                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
3273 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3274                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3275 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3276                 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3277 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3278 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3279 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3280 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3281 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3282 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3283 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3284 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3285
3286 AC_SUBST(FLAGS_FOR_TARGET)
3287 AC_SUBST(RAW_CXX_FOR_TARGET)
3288
3289 # Certain tools may need extra flags.
3290 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3291 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3292 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3293
3294 # When building target libraries, except in a Canadian cross, we use
3295 # the same toolchain as the compiler we just built.
3296 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3297 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3298 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3299 if test $host = $build; then
3300   case " $configdirs " in
3301     *" gcc "*)
3302       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3303       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3304       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3305       ;;
3306   esac
3307 fi
3308
3309 AC_SUBST(COMPILER_AS_FOR_TARGET)
3310 AC_SUBST(COMPILER_LD_FOR_TARGET)
3311 AC_SUBST(COMPILER_NM_FOR_TARGET)
3312
3313 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3314 AC_ARG_ENABLE(maintainer-mode,
3315 [  --enable-maintainer-mode enable make rules and dependencies not useful
3316                           (and sometimes confusing) to the casual installer],
3317       USE_MAINTAINER_MODE=$enableval,
3318       USE_MAINTAINER_MODE=no)
3319 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3320 AC_SUBST(MAINTAINER_MODE_TRUE)
3321 AC_SUBST(MAINTAINER_MODE_FALSE)
3322 if test "$USE_MAINTAINER_MODE" = yes; then
3323   MAINTAINER_MODE_TRUE=
3324   MAINTAINER_MODE_FALSE='#'
3325 else
3326   MAINTAINER_MODE_TRUE='#'
3327   MAINTAINER_MODE_FALSE=
3328 fi
3329 MAINT=$MAINTAINER_MODE_TRUE
3330 AC_SUBST(MAINT)dnl
3331
3332 # ---------------------
3333 # GCC bootstrap support
3334 # ---------------------
3335
3336 # Stage specific cflags for build.
3337 stage1_cflags="-g"
3338 case $build in
3339   vax-*-*)
3340     case ${GCC} in
3341       yes) stage1_cflags="-g -Wa,-J" ;;
3342       *) stage1_cflags="-g -J" ;;
3343     esac ;;
3344 esac
3345
3346 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
3347 if test "$GCC" = yes -a "$ENABLE_BUILD_WITH_CXX" != yes; then
3348   saved_CFLAGS="$CFLAGS"
3349
3350   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
3351   CFLAGS="$CFLAGS -fkeep-inline-functions"
3352   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
3353   AC_TRY_COMPILE([
3354 #if (__GNUC__ < 3) \
3355     || (__GNUC__ == 3 && (__GNUC_MINOR__ < 3 \
3356                           || (__GNUC_MINOR__ == 3 && __GNUC_PATCHLEVEL__ < 1)))
3357 #error http://gcc.gnu.org/PR29382
3358 #endif
3359     ],,
3360     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
3361     [AC_MSG_RESULT([no])])
3362
3363   CFLAGS="$saved_CFLAGS"
3364 fi
3365
3366 AC_SUBST(stage1_cflags)
3367
3368 # Enable --enable-checking in stage1 of the compiler.
3369 AC_ARG_ENABLE(stage1-checking,
3370 [  --enable-stage1-checking@<:@=all@:>@   choose additional checking for stage1
3371                           of the compiler],
3372 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3373 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3374   stage1_checking=--enable-checking=yes,types
3375 else
3376   stage1_checking=--enable-checking=$enable_checking,types
3377 fi])
3378 AC_SUBST(stage1_checking)
3379
3380 # Enable -Werror in bootstrap stage2 and later.
3381 AC_ARG_ENABLE(werror,
3382 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
3383 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3384   enable_werror=yes
3385 else
3386   enable_werror=no
3387 fi])
3388 case ${enable_werror} in
3389   yes) stage2_werror_flag="--enable-werror-always" ;;
3390   *) stage2_werror_flag="" ;;
3391 esac
3392 AC_SUBST(stage2_werror_flag)
3393
3394 # Specify what files to not compare during bootstrap.
3395
3396 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3397 case "$target" in
3398   hppa*64*-*-hpux*) ;;
3399   hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
3400 esac
3401 case " $configdirs " in
3402 *" ppl "*) compare_exclusions="$compare_exclusions | ppl/src/ppl-config.o" ;;
3403 esac
3404 AC_SUBST(compare_exclusions)
3405
3406 AC_CONFIG_FILES([Makefile],
3407   [sed "$extrasub_build" Makefile |
3408    sed "$extrasub_host" |
3409    sed "$extrasub_target" > mf$$
3410    mv -f mf$$ Makefile],
3411   [extrasub_build="$extrasub_build"
3412    extrasub_host="$extrasub_host"
3413    extrasub_target="$extrasub_target"])
3414 AC_OUTPUT