configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   2 #   1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   3 #
   4 # This file is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 ##############################################################################
  19 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  20
  21 sinclude(config/acx.m4)
  22
  23 AC_INIT(move-if-change)
  24 AC_PREREQ(2.13)
  25 AC_CANONICAL_SYSTEM
  26 AC_ARG_PROGRAM
  27
  28 # Get 'install' or 'install-sh' and its variants.
  29 AC_PROG_INSTALL
  30 ACX_PROG_LN
  31 AC_PROG_LN_S
  32
  33 ### we might need to use some other shell than /bin/sh for running subshells
  34 ### If we are on Windows, search for the shell.  This will permit people
  35 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  36 ### without also having to set CONFIG_SHELL.  This code will work when
  37 ### using bash, which sets OSTYPE.
  38 case "${OSTYPE}" in
  39 *win32*)
  40   if test x${CONFIG_SHELL} = x ; then
  41     if test ! -f /bin/sh ; then
  42       if test x${SHELL} != x && test -f ${SHELL} ; then
  43         CONFIG_SHELL=${SHELL}
  44         export CONFIG_SHELL
  45       else
  46         for prog in sh sh.exe bash bash.exe; do
  47           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  48           for dir in $PATH; do
  49             test -z "$dir" && dir=.
  50             if test -f $dir/$prog; then
  51               CONFIG_SHELL=$dir/$prog
  52               export CONFIG_SHELL
  53               break
  54             fi
  55           done
  56           IFS="$save_ifs"
  57           test -n "${CONFIG_SHELL}" && break
  58         done
  59       fi
  60     fi
  61   fi
  62   ;;
  63 esac
  64
  65 config_shell=${CONFIG_SHELL-/bin/sh}
  66
  67 progname=$0
  68 # if PWD already has a value, it is probably wrong.
  69 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  70
  71 # Export original configure arguments for use by sub-configures.  These
  72 # will be expanded by make, so quote '$'.
  73 tmp="$progname $@"
  74 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
  75 $tmp
  76 EOF_SED
  77 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
  78 rm -f conftestsed.out
  79 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  80
  81 moveifchange=${srcdir}/move-if-change
  82
  83 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  84
  85 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
  86 # a relative path.
  87 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
  88   INSTALL="${srcpwd}/install-sh -c"
  89 fi
  90
  91 # Set srcdir to "." if that's what it is.
  92 # This is important for multilib support.
  93 pwd=`${PWDCMD-pwd}`
  94 if test "${pwd}" = "${srcpwd}" ; then
  95   srcdir=.
  96 fi
  97
  98 topsrcdir=$srcpwd
  99
 100 extra_host_args=
 101
 102 ### To add a new directory to the tree, first choose whether it is a target
 103 ### or a host dependent tool.  Then put it into the appropriate list
 104 ### (library or tools, host or target), doing a dependency sort.
 105
 106 # Subdirs will be configured in the order listed in build_configdirs,
 107 # configdirs, or target_configdirs; see the serialization section below.
 108
 109 # Dependency sorting is only needed when *configuration* must be done in
 110 # a particular order.  In all cases a dependency should be specified in
 111 # the Makefile, whether or not it's implicitly specified here.
 112
 113 # Double entries in build_configdirs, configdirs, or target_configdirs may
 114 # cause circular dependencies and break everything horribly.
 115
 116 # these library is used by various programs built for the build
 117 # environment
 118 #
 119 build_libs="build-libiberty"
 120
 121 # these tools are built for the build environment
 122 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 123
 124 # these libraries are used by various programs built for the host environment
 125 #
 126 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp"
 127
 128 # these tools are built for the host environment
 129 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 130 # know that we are building the simulator.
 131 # binutils, gas and ld appear in that order because it makes sense to run
 132 # "make check" in that particular order.
 133 host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc 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"
 134
 135 # libgcj represents the runtime libraries only used by gcj.
 136 libgcj="target-libffi \
 137         target-boehm-gc \
 138         target-zlib \
 139         target-qthreads \
 140         target-libjava"
 141
 142 # these libraries are built for the target environment, and are built after
 143 # the host libraries and the host tools (which may be a cross compiler)
 144 #
 145 target_libraries="target-libiberty \
 146                 target-libgloss \
 147                 target-newlib \
 148                 target-libstdc++-v3 \
 149                 target-libmudflap \
 150                 target-libssp \
 151                 target-libgfortran \
 152                 ${libgcj} \
 153                 target-libobjc \
 154                 target-libada"
 155
 156 # these tools are built using the target libraries, and are intended to
 157 # run only in the target environment
 158 #
 159 # note: any program that *uses* libraries that are in the "target_libraries"
 160 # list belongs in this list.  those programs are also very likely
 161 # candidates for the "native_only" list which follows
 162 #
 163 target_tools="target-examples target-groff target-gperf target-rda"
 164
 165 ################################################################################
 166
 167 ## All tools belong in one of the four categories, and are assigned above
 168 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 169 ## is important because configure will choke if they ever get through.
 170 ## ${configdirs} is directories we build using the host tools.
 171 ## ${target_configdirs} is directories we build using the target tools.
 172 configdirs=`echo ${host_libs} ${host_tools}`
 173 target_configdirs=`echo ${target_libraries} ${target_tools}`
 174 build_configdirs=`echo ${build_libs} ${build_tools}`
 175
 176 ################################################################################
 177
 178 srcname="gnu development package"
 179
 180 # This gets set non-empty for some net releases of packages.
 181 appdirs=""
 182
 183 # Define is_cross_compiler to save on calls to 'test'.
 184 is_cross_compiler=
 185 if test x"${host}" = x"${target}" ; then
 186   is_cross_compiler=no
 187 else
 188   is_cross_compiler=yes
 189 fi
 190
 191 # Find the build and target subdir names.
 192 GCC_TOPLEV_SUBDIRS
 193
 194 # Skipdirs are removed silently.
 195 skipdirs=
 196 # Noconfigdirs are removed loudly.
 197 noconfigdirs=""
 198
 199 use_gnu_ld=
 200 # Make sure we don't let GNU ld be added if we didn't want it.
 201 if test x$with_gnu_ld = xno ; then
 202   use_gnu_ld=no
 203   noconfigdirs="$noconfigdirs ld"
 204 fi
 205
 206 use_gnu_as=
 207 # Make sure we don't let GNU as be added if we didn't want it.
 208 if test x$with_gnu_as = xno ; then
 209   use_gnu_as=no
 210   noconfigdirs="$noconfigdirs gas"
 211 fi
 212
 213 # some tools are so dependent upon X11 that if we're not building with X,
 214 # it's not even worth trying to configure, much less build, that tool.
 215
 216 case ${with_x} in
 217   yes | "") ;; # the default value for this tree is that X11 is available
 218   no)
 219     skipdirs="${skipdirs} tk itcl libgui"
 220     # We won't be able to build gdbtk without X.
 221     enable_gdbtk=no
 222     ;;
 223   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 224 esac
 225
 226 # Some tools are only suitable for building in a "native" situation.
 227 # Remove these if host!=target.
 228 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff gprof target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 229
 230 # Similarly, some are only suitable for cross toolchains.
 231 # Remove these if host=target.
 232 cross_only="target-libgloss target-newlib target-opcodes"
 233
 234 case $is_cross_compiler in
 235   no) skipdirs="${skipdirs} ${cross_only}" ;;
 236   yes) skipdirs="${skipdirs} ${native_only}" ;;
 237 esac
 238
 239 # If both --with-headers and --with-libs are specified, default to
 240 # --without-newlib.
 241 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 242    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 243   if test x"${with_newlib}" = x ; then
 244     with_newlib=no
 245   fi
 246 fi
 247
 248 # Recognize --with-newlib/--without-newlib.
 249 case ${with_newlib} in
 250   no) skipdirs="${skipdirs} target-newlib" ;;
 251   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 252 esac
 253
 254 # Configure extra directories which are host specific
 255
 256 case "${host}" in
 257   *-cygwin*)
 258     configdirs="$configdirs libtermcap" ;;
 259 esac
 260
 261 # A target can indicate whether a language isn't supported for some reason.
 262 # Only spaces may be used in this macro; not newlines or tabs.
 263 unsupported_languages=
 264
 265 # Remove more programs from consideration, based on the host or
 266 # target this usually means that a port of the program doesn't
 267 # exist yet.
 268
 269 case "${host}" in
 270   hppa*64*-*-*)
 271     noconfigdirs="$noconfigdirs byacc"
 272     ;;
 273   i[[3456789]]86-*-vsta)
 274     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 275     ;;
 276   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 277     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 278     ;;
 279   i[[3456789]]86-*-mingw32*)
 280     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 281     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 282     ;;
 283   i[[3456789]]86-*-beos*)
 284     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 285     ;;
 286   *-*-cygwin*)
 287     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 288     ;;
 289   *-*-netbsd*)
 290     noconfigdirs="$noconfigdirs rcs"
 291     ;;
 292   ppc*-*-pe)
 293     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 294     ;;
 295   powerpc-*-beos*)
 296     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 297     ;;
 298 esac
 299
 300
 301 AC_ARG_ENABLE(libada,
 302 [  --enable-libada        Builds libada directory],
 303 ENABLE_LIBADA=$enableval,
 304 ENABLE_LIBADA=yes)
 305 if test "${ENABLE_LIBADA}" != "yes" ; then
 306   noconfigdirs="$noconfigdirs target-libada"
 307   noconfigdirs="$noconfigdirs gnattools"
 308 fi
 309
 310 AC_ARG_ENABLE(libssp,
 311 [  --enable-libssp        Builds libssp directory],
 312 ENABLE_LIBSSP=$enableval,
 313 ENABLE_LIBSSP=yes)
 314 if test "${ENABLE_LIBSSP}" != "yes" ; then
 315   noconfigdirs="$noconfigdirs target-libssp"
 316 fi
 317
 318 # Save it here so that, even in case of --enable-libgcj, if the Java
 319 # front-end isn't enabled, we still get libgcj disabled.
 320 libgcj_saved=$libgcj
 321 case $enable_libgcj in
 322 yes)
 323   # If we reset it here, it won't get added to noconfigdirs in the
 324   # target-specific build rules, so it will be forcibly enabled
 325   # (unless the Java language itself isn't enabled).
 326   libgcj=
 327   ;;
 328 no)
 329   # Make sure we get it printed in the list of not supported target libs.
 330   noconfigdirs="$noconfigdirs ${libgcj}"
 331   ;;
 332 esac
 333
 334
 335 # Allow --disable-libmudflap to exclude target-libmudflap
 336 case $enable_libmudflap in
 337 yes)
 338     ;;
 339 no)
 340     noconfigdirs="$noconfigdirs target-libmudflap"
 341     ;;
 342 "")
 343     case "${target}" in
 344     *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
 345         # Enable libmudflap by default in GNU and friends.
 346         ;;
 347     *-*-freebsd*)
 348         # Enable libmudflap by default in FreeBSD.
 349         ;;
 350     *)
 351         # Disable it by default everywhere else.
 352         noconfigdirs="$noconfigdirs target-libmudflap"
 353         ;;
 354     esac
 355 esac
 356
 357
 358 case "${target}" in
 359   *-*-chorusos)
 360     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 361     ;;
 362   powerpc-*-darwin*)
 363     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 364     ;;
 365   *-*-darwin*)
 366     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 367     noconfigdirs="$noconfigdirs ${libgcj}"
 368     ;;
 369   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 370     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 371     ;;
 372   *-*-freebsd*)
 373     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 374     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 375         && test -f /usr/local/include/gmp.h; then
 376       with_gmp=/usr/local
 377     fi
 378
 379     # Skip some stuff that's unsupported on some FreeBSD configurations.
 380     case "${target}" in
 381       i*86-*-*) ;;
 382       alpha*-*-*) ;;
 383       *)
 384         noconfigdirs="$noconfigdirs ${libgcj}"
 385         ;;
 386     esac
 387     ;;
 388   *-*-kaos*)
 389     # Remove unsupported stuff on all kaOS configurations.
 390     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 391     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 392     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 393     noconfigdirs="$noconfigdirs target-libgloss"
 394     ;;
 395   *-*-netbsd*)
 396     # Skip some stuff on all NetBSD configurations.
 397     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 398
 399     # Skip some stuff that's unsupported on some NetBSD configurations.
 400     case "${target}" in
 401       i*86-*-netbsdelf*) ;;
 402       arm*-*-netbsdelf*) ;;
 403       *)
 404         noconfigdirs="$noconfigdirs ${libgcj}"
 405         ;;
 406     esac
 407     ;;
 408   *-*-netware*)
 409     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 410     ;;
 411   *-*-rtems*)
 412     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 413     ;;
 414   *-*-uclinux*)
 415     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 416     ;;
 417   *-*-vxworks*)
 418     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}"
 419     ;;
 420   alpha*-dec-osf*)
 421     # ld works, but does not support shared libraries.
 422     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 423     # gas doesn't generate exception information.
 424     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 425     ;;
 426   alpha*-*-*vms*)
 427     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 428     ;;
 429   alpha*-*-linux*)
 430     # newlib is not 64 bit ready
 431     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 432     ;;
 433   alpha*-*-*)
 434     # newlib is not 64 bit ready
 435     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 436     ;;
 437   am33_2.0-*-linux*)
 438     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 439     ;;
 440   sh-*-linux*)
 441     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 442     ;;
 443   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 444     noconfigdirs="$noconfigdirs ${libgcj}"
 445     noconfigdirs="$noconfigdirs target-examples"
 446     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 447     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 448     noconfigdirs="$noconfigdirs expect dejagnu"
 449     # the C++ libraries don't build on top of CE's C libraries
 450     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 451     noconfigdirs="$noconfigdirs target-newlib"
 452     case "${host}" in
 453       *-*-cygwin*) ;; # keep gdb and readline
 454       *) noconfigdirs="$noconfigdirs gdb readline"
 455          ;;
 456     esac
 457     ;;
 458   arc-*-*)
 459     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 460     ;;
 461   arm-semi-aof )
 462     ;;
 463   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 464     noconfigdirs="$noconfigdirs ${libgcj}"
 465     ;;
 466   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 467     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 468     ;;
 469   arm*-*-symbianelf*)
 470     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 471     ;;
 472   arm-*-pe*)
 473     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 474     ;;
 475   thumb-*-coff)
 476     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 477     ;;
 478   thumb-*-elf)
 479     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 480     ;;
 481   thumb-*-pe)
 482     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 483     ;;
 484   arm-*-riscix*)
 485     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 486     ;;
 487   avr-*-*)
 488     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 489     ;;
 490   c4x-*-* | tic4x-*-*)
 491     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 492     ;;
 493   c54x*-*-* | tic54x-*-*)
 494     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 495     ;;
 496   cris-*-* | crisv32-*-*)
 497     unsupported_languages="$unsupported_languages java"
 498     case "${target}" in
 499       *-*-aout)
 500         unsupported_languages="$unsupported_languages f95"
 501         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 502       *-*-elf)
 503         unsupported_languages="$unsupported_languages f95"
 504         noconfigdirs="$noconfigdirs target-boehm-gc";;
 505       *-*-linux*)
 506         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 507       *)
 508         unsupported_languages="$unsupported_languages f95"
 509         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 510     esac
 511     ;;
 512   crx-*-*)
 513     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 514     ;;
 515   d10v-*-*)
 516     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 517     ;;
 518   d30v-*-*)
 519     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 520     ;;
 521   fr30-*-elf*)
 522     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 523     ;;
 524   frv-*-*)
 525     noconfigdirs="$noconfigdirs ${libgcj}"
 526     ;;
 527   h8300*-*-*)
 528     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 529     ;;
 530   h8500-*-*)
 531     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 532     ;;
 533   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 534     ;;
 535   hppa*64*-*-linux* | parisc*64*-*-linux*)
 536     # In this case, it's because the hppa64-linux target is for
 537     # the kernel only at this point and has no libc, and thus no
 538     # headers, crt*.o, etc., all of which are needed by these.
 539     noconfigdirs="$noconfigdirs target-zlib"
 540     ;;
 541   parisc*-*-linux* | hppa*-*-linux*)
 542     ;;
 543   hppa*-*-*elf* | \
 544   hppa*-*-lites* | \
 545   hppa*-*-openbsd* | \
 546   hppa*64*-*-*)
 547     noconfigdirs="$noconfigdirs ${libgcj}"
 548     ;;
 549   hppa*-*-*)
 550     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 551     # build on HP-UX 10.20.
 552     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 553     ;;
 554   i960-*-*)
 555     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 556     ;;
 557   ia64*-*-elf*)
 558     # No gdb support yet.
 559     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 560     ;;
 561   ia64*-**-hpux*)
 562     # No gdb or ld support yet.
 563     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 564     ;;
 565   i370-*-opened*)
 566     ;;
 567   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 568     noconfigdirs="$noconfigdirs ${libgcj}"
 569     ;;
 570   i[[3456789]]86-*-linux*)
 571     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 572     # not build java stuff by default.
 573     case "${target}" in
 574       *-*-*libc1*)
 575         noconfigdirs="$noconfigdirs ${libgcj}";;
 576     esac
 577
 578     # This section makes it possible to build newlib natively on linux.
 579     # If we are using a cross compiler then don't configure newlib.
 580     if test x${is_cross_compiler} != xno ; then
 581       noconfigdirs="$noconfigdirs target-newlib"
 582     fi
 583     noconfigdirs="$noconfigdirs target-libgloss"
 584     # If we are not using a cross compiler, do configure newlib.
 585     # Note however, that newlib will only be configured in this situation
 586     # if the --with-newlib option has been given, because otherwise
 587     # 'target-newlib' will appear in skipdirs.
 588     ;;
 589   i[[3456789]]86-*-mingw32*)
 590     target_configdirs="$target_configdirs target-mingw"
 591     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 592
 593     # Can't build gdb for mingw32 if not native.
 594     case "${host}" in
 595       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 596       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 597          ;;
 598     esac
 599     ;;
 600   *-*-cygwin*)
 601     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 602     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 603     # always build newlib if winsup directory is present.
 604     if test -d "$srcdir/winsup"; then
 605       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 606     elif test -d "$srcdir/newlib"; then
 607       echo "Warning: winsup is missing so newlib can't be built."
 608     fi
 609
 610     # Can't build gdb for Cygwin if not native.
 611     case "${host}" in
 612       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 613       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 614          ;;
 615     esac
 616     ;;
 617   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 618   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 619     ;;
 620   i[[3456789]]86-*-pe)
 621     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 622     ;;
 623   i[[3456789]]86-*-sco3.2v5*)
 624     # The linker does not yet know about weak symbols in COFF,
 625     # and is not configured to handle mixed ELF and COFF.
 626     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 627     ;;
 628   i[[3456789]]86-*-sco*)
 629     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 630     ;;
 631   i[[3456789]]86-*-solaris2*)
 632     noconfigdirs="$noconfigdirs target-libgloss"
 633     ;;
 634   i[[3456789]]86-*-sysv4*)
 635     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 636     ;;
 637   i[[3456789]]86-*-beos*)
 638     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 639     ;;
 640   m32r-*-*)
 641     noconfigdirs="$noconfigdirs ${libgcj}"
 642     ;;
 643   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 644     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 645     ;;
 646   m68k-*-elf*)
 647     noconfigdirs="$noconfigdirs ${libgcj}"
 648     ;;
 649   m68k-*-coff*)
 650     noconfigdirs="$noconfigdirs ${libgcj}"
 651     ;;
 652   mcore-*-pe*)
 653   # The EPOC C++ environment does not support exceptions or rtti,
 654   # and so building libstdc++-v3 tends not to always work.
 655     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 656     ;;
 657   mmix-*-*)
 658     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 659     unsupported_languages="$unsupported_languages f95 java"
 660     ;;
 661   mn10200-*-*)
 662     noconfigdirs="$noconfigdirs ${libgcj}"
 663     ;;
 664   mn10300-*-*)
 665     noconfigdirs="$noconfigdirs ${libgcj}"
 666     ;;
 667   ms1-*-*)
 668     noconfigdirs="$noconfigdirs sim"
 669     ;;
 670   powerpc-*-aix*)
 671     # copied from rs6000-*-* entry
 672     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 673     ;;
 674   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 675     target_configdirs="$target_configdirs target-winsup"
 676     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 677     # always build newlib.
 678     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 679     ;;
 680     # This is temporary until we can link against shared libraries
 681   powerpcle-*-solaris*)
 682     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 683     ;;
 684   powerpc-*-beos*)
 685     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 686     ;;
 687   powerpc-*-eabi)
 688     noconfigdirs="$noconfigdirs ${libgcj}"
 689     ;;
 690   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 691     ;;
 692   rs6000-*-lynxos*)
 693     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 694     ;;
 695   rs6000-*-aix*)
 696     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 697     ;;
 698   rs6000-*-*)
 699     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 700     ;;
 701   m68k-apollo-*)
 702     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 703     ;;
 704   mips*-*-irix5*)
 705     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 706     ;;
 707   mips*-*-irix6*)
 708     # Linking libjava exceeds command-line length limits on at least
 709     # IRIX 6.2, but not on IRIX 6.5.
 710     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 711     # <oldham@codesourcery.com>
 712     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 713     ;;
 714   mips*-dec-bsd*)
 715     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 716     ;;
 717   mips*-*-bsd*)
 718     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 719     ;;
 720   mipstx39-*-*)
 721     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 722     ;;
 723   mips64*-*-linux*)
 724     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 725     ;;
 726   mips*-*-linux*)
 727     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 728     ;;
 729   mips*-*-*)
 730     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 731     ;;
 732   romp-*-*)
 733     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 734     ;;
 735   sh-*-* | sh64-*-*)
 736     case "${host}" in
 737       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 738       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 739       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 740       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 741     esac
 742     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 743     ;;
 744   sparc-*-elf*)
 745     noconfigdirs="$noconfigdirs ${libgcj}"
 746     ;;
 747   sparc64-*-elf*)
 748     noconfigdirs="$noconfigdirs ${libgcj}"
 749     ;;
 750   sparclite-*-*)
 751     noconfigdirs="$noconfigdirs ${libgcj}"
 752     ;;
 753   sparc-*-sunos4*)
 754     noconfigdirs="$noconfigdirs ${libgcj}"
 755     if test x${is_cross_compiler} != xno ; then
 756            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 757     else
 758            use_gnu_ld=no
 759     fi
 760     ;;
 761   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 762     noconfigdirs="$noconfigdirs ${libgcj}"
 763     ;;
 764   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 765     ;;
 766   v810-*-*)
 767     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 768     ;;
 769   v850-*-*)
 770     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 771     ;;
 772   v850e-*-*)
 773     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 774     ;;
 775   v850ea-*-*)
 776     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 777     ;;
 778   vax-*-vms)
 779     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 780     ;;
 781   vax-*-*)
 782     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 783     ;;
 784   xtensa-*-*)
 785     noconfigdirs="$noconfigdirs ${libgcj}"
 786     ;;
 787   ip2k-*-*)
 788     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 789     ;;
 790   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 791     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 792     ;;
 793   *-*-lynxos*)
 794     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 795     ;;
 796   *-*-*)
 797     noconfigdirs="$noconfigdirs ${libgcj}"
 798     ;;
 799 esac
 800
 801 # If we aren't building newlib, then don't build libgloss, since libgloss
 802 # depends upon some newlib header files.
 803 case "${noconfigdirs}" in
 804   *target-libgloss*) ;;
 805   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 806 esac
 807
 808 # Work in distributions that contain no compiler tools, like Autoconf.
 809 tentative_cc=""
 810 host_makefile_frag=/dev/null
 811 if test -d ${srcdir}/config ; then
 812 case "${host}" in
 813   m68k-hp-hpux*)
 814     # Avoid "too much defining" errors from HPUX compiler.
 815     tentative_cc="cc -Wp,-H256000"
 816     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 817     # If it's HP/UX ar, this should be harmless.
 818     RANLIB="ar ts"
 819     ;;
 820   m68k-apollo-sysv*)
 821     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 822     ;;
 823   m68k-apollo-bsd*)
 824     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 825     # chokes on bfd, the compiler won't let you assign integers to enums, and
 826     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 827     # the apollo compiler" (the preferred version of GCC could be called cc,
 828     # or whatever), but I'm not sure leaving CC as cc is any better...
 829     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 830     # Used to have BISON=yacc.
 831     tentative_cc=gcc
 832     ;;
 833   m88k-dg-dgux*)
 834     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 835     ;;
 836   m88k-harris-cxux*)
 837     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 838     tentative_cc="cc -Xa"
 839     host_makefile_frag="config/mh-cxux"
 840     ;;
 841   m88k-motorola-sysv*)
 842     ;;
 843   mips*-dec-ultrix*)
 844     tentative_cc="cc -Wf,-XNg1000"
 845     host_makefile_frag="config/mh-decstation"
 846     ;;
 847   mips*-nec-sysv4*)
 848     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 849     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 850     host_makefile_frag="config/mh-necv4"
 851     ;;
 852   mips*-sgi-irix4*)
 853     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 854     # environment.  Also bump switch table size so that cp-parse will
 855     # compile.  Bump string length limit so linker builds.
 856     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 857     ;;
 858   mips*-*-sysv4*)
 859     host_makefile_frag="config/mh-sysv4"
 860     ;;
 861   mips*-*-sysv*)
 862     # This is for a MIPS running RISC/os 4.52C.
 863
 864     # This is needed for GDB, but needs to be in the top-level make because
 865     # if a library is compiled with the bsd headers and gets linked with the
 866     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 867     # a different size).
 868     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 869     # known except to select the sysv environment.  Could we use /proc instead?
 870     # These "sysv environments" and "bsd environments" often end up being a pain.
 871     #
 872     # This is not part of CFLAGS because perhaps not all C compilers have this
 873     # option.
 874     tentative_cc="cc -systype sysv"
 875     ;;
 876   i370-ibm-opened*)
 877     tentative_cc="c89"
 878     ;;
 879   i[[3456789]]86-*-sysv5*)
 880     host_makefile_frag="config/mh-sysv5"
 881     ;;
 882   i[[3456789]]86-*-dgux*)
 883     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 884     host_makefile_frag="config/mh-dgux386"
 885     ;;
 886   i[[3456789]]86-ncr-sysv4.3*)
 887     # The MetaWare compiler will generate a copyright message unless you
 888     # turn it off by adding the -Hnocopyr flag.
 889     tentative_cc="cc -Hnocopyr"
 890     ;;
 891   i[[3456789]]86-ncr-sysv4*)
 892     # for an NCR 3000 (i486/SVR4) system.
 893     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 894     # This compiler not only emits obnoxious copyright messages every time
 895     # you run it, but it chokes and dies on a whole bunch of GNU source
 896     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 897     tentative_cc="/usr/ccs/ATT/cc"
 898     host_makefile_frag="config/mh-ncr3000"
 899     ;;
 900   i[[3456789]]86-*-sco3.2v5*)
 901     ;;
 902   i[[3456789]]86-*-sco*)
 903     # The native C compiler botches some simple uses of const.  Unfortunately,
 904     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 905     tentative_cc="cc -Dconst="
 906     host_makefile_frag="config/mh-sco"
 907     ;;
 908   i[[3456789]]86-*-udk*)
 909     host_makefile_frag="config/mh-sysv5"
 910     ;;
 911   i[[3456789]]86-*-solaris2*)
 912     host_makefile_frag="config/mh-sysv4"
 913     ;;
 914   i[[3456789]]86-*-msdosdjgpp*)
 915     host_makefile_frag="config/mh-djgpp"
 916     ;;
 917   *-cygwin*)
 918     host_makefile_frag="config/mh-cygwin"
 919     ;;
 920   *-mingw32*)
 921     ;;
 922   *-interix*)
 923     host_makefile_frag="config/mh-interix"
 924     ;;
 925   vax-*-ultrix2*)
 926     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 927     tentative_cc=gcc
 928     ;;
 929   *-*-solaris2*)
 930     host_makefile_frag="config/mh-solaris"
 931     ;;
 932   m68k-sun-sunos*)
 933     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 934     # without overflowing the jump tables (-J says to use a 32 bit table)
 935     tentative_cc="cc -J"
 936     ;;
 937   *-hp-hpux*)
 938     tentative_cc="cc -Wp,-H256000"
 939     ;;
 940   *-*-hiux*)
 941     tentative_cc="cc -Wp,-H256000"
 942     ;;
 943   rs6000-*-lynxos*)
 944     # /bin/cc is less than useful for our purposes.  Always use GCC
 945     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 946     host_makefile_frag="config/mh-lynxrs6k"
 947     ;;
 948   powerpc-*-darwin*)
 949     host_makefile_frag="config/mh-ppc-darwin"
 950     ;;
 951   *-*-lynxos*)
 952     # /bin/cc is less than useful for our purposes.  Always use GCC
 953     tentative_cc="/bin/gcc"
 954     ;;
 955   *-*-sysv4*)
 956     host_makefile_frag="config/mh-sysv4"
 957     ;;
 958   # This is placed last to prevent interfering with the cases above.
 959   i[[3456789]]86-*-*)
 960     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 961     host_makefile_frag="config/mh-x86omitfp"
 962     ;;
 963 esac
 964 fi
 965
 966 # If we aren't going to be using gcc, see if we can extract a definition
 967 # of CC from the fragment.
 968 # Actually, use the 'pre-extracted' version above.
 969 if test -z "${CC}" && test "${build}" = "${host}" ; then
 970   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 971   found=
 972   for dir in $PATH; do
 973     test -z "$dir" && dir=.
 974     if test -f $dir/gcc; then
 975       found=yes
 976       break
 977     fi
 978   done
 979   IFS="$save_ifs"
 980   if test -z "${found}" && test -n "${tentative_cc}" ; then
 981     CC=$tentative_cc
 982   fi
 983 fi
 984
 985 if test "${build}" != "${host}" ; then
 986   # If we are doing a Canadian Cross, in which the host and build systems
 987   # are not the same, we set reasonable default values for the tools.
 988
 989   CC=${CC-${host_alias}-gcc}
 990   CFLAGS=${CFLAGS-"-g -O2"}
 991   CXX=${CXX-${host_alias}-c++}
 992   CXXFLAGS=${CXXFLAGS-"-g -O2"}
 993   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
 994   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
 995   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
 996   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
 997   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
 998   BUILD_PREFIX=${build_alias}-
 999   BUILD_PREFIX_1=${build_alias}-
1000
1001 else
1002   # Set reasonable default values for some tools even if not Canadian.
1003   # Of course, these are different reasonable default values, originally
1004   # specified directly in the Makefile.
1005   # We don't export, so that autoconf can do its job.
1006   # Note that all these settings are above the fragment inclusion point
1007   # in Makefile.in, so can still be overridden by fragments.
1008   # This is all going to change when we autoconfiscate...
1009
1010   CC_FOR_BUILD="\$(CC)"
1011   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
1012   BUILD_PREFIX=
1013   BUILD_PREFIX_1=loser-
1014
1015   AC_PROG_CC
1016
1017   # We must set the default linker to the linker used by gcc for the correct
1018   # operation of libtool.  If LD is not defined and we are using gcc, try to
1019   # set the LD default to the ld used by gcc.
1020   if test -z "$LD"; then
1021     if test "$GCC" = yes; then
1022       case $build in
1023       *-*-mingw*)
1024         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1025       *)
1026         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1027       esac
1028       case $gcc_prog_ld in
1029       # Accept absolute paths.
1030       [[\\/]* | [A-Za-z]:[\\/]*)]
1031         LD="$gcc_prog_ld" ;;
1032       esac
1033     fi
1034   fi
1035
1036   CXX=${CXX-"c++"}
1037   CFLAGS=${CFLAGS-"-g"}
1038   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1039 fi
1040
1041 ACX_PROG_GNAT
1042 ACX_PROG_CMP_IGNORE_INITIAL
1043
1044 # Check for GMP and MPFR
1045 gmplibs=
1046 gmpinc=
1047 have_gmp=yes
1048 # Specify a location for mpfr
1049 # check for this first so it ends up on the link line before gmp.
1050 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1051
1052 if test "x$with_mpfr_dir" != x; then
1053   gmpinc="-I$with_mpfr_dir"
1054   gmplibs="$with_mpfr_dir/libmpfr.a"
1055 else
1056   gmplibs="-lmpfr"
1057 fi
1058
1059 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1060
1061 if test "x$with_mpfr" != x; then
1062   gmplibs="-L$with_mpfr/lib $gmplibs"
1063   gmpinc="-I$with_mpfr/include"
1064 fi
1065
1066 # Specify a location for gmp
1067 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1068
1069 if test "x$with_gmp_dir" != x; then
1070   gmpinc="$gmpinc -I$with_gmp_dir"
1071   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1072     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1073   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1074     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1075   fi
1076   # One of the later tests will catch the error if neither library is present.
1077 else
1078   gmplibs="$gmplibs -lgmp"
1079 fi
1080
1081 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1082
1083 if test "x$with_gmp" != x; then
1084   gmplibs="-L$with_gmp/lib $gmplibs"
1085   gmpinc="-I$with_gmp/include $gmpinc"
1086 fi
1087
1088 saved_CFLAGS="$CFLAGS"
1089 CFLAGS="$CFLAGS $gmpinc"
1090 # Check GMP actually works
1091 AC_MSG_CHECKING([for correct version of gmp.h])
1092 AC_TRY_COMPILE([#include "gmp.h"],[
1093 #if __GNU_MP_VERSION < 3
1094 choke me
1095 #endif
1096 ], [AC_MSG_RESULT([yes])],
1097   [AC_MSG_RESULT([no]); have_gmp=no])
1098
1099 if test x"$have_gmp" = xyes; then
1100   AC_MSG_CHECKING([for MPFR])
1101
1102   saved_LIBS="$LIBS"
1103   LIBS="$LIBS $gmplibs"
1104   AC_TRY_LINK([#include <gmp.h>
1105 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1106     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1107   LIBS="$saved_LIBS"
1108   CFLAGS="$saved_CFLAGS"
1109 fi
1110
1111 # Flags needed for both GMP and/or MPFR
1112 AC_SUBST(gmplibs)
1113 AC_SUBST(gmpinc)
1114
1115 # By default, C is the only stage 1 language.
1116 stage1_languages=c
1117 AC_SUBST(stage1_languages)
1118
1119 # Figure out what language subdirectories are present.
1120 # Look if the user specified --enable-languages="..."; if not, use
1121 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1122 # go away some day.
1123 # NB:  embedded tabs in this IF block -- do not untabify
1124 if test -d ${srcdir}/gcc; then
1125   if test x"${enable_languages+set}" != xset; then
1126     if test x"${LANGUAGES+set}" = xset; then
1127       enable_languages="${LANGUAGES}"
1128         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1129     else
1130       enable_languages=all
1131     fi
1132   else
1133     if test x"${enable_languages}" = x ||
1134        test x"${enable_languages}" = xyes;
1135        then
1136       echo configure.in: --enable-languages needs at least one language argument 1>&2
1137       exit 1
1138     fi
1139   fi
1140   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1141
1142   # First scan to see if an enabled language requires some other language.
1143   # We assume that a given config-lang.in will list all the language
1144   # front ends it requires, even if some are required indirectly.
1145   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1146     case ${lang_frag} in
1147       ..) ;;
1148       # The odd quoting in the next line works around
1149       # an apparent bug in bash 1.12 on linux.
1150       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1151       *)
1152         # From the config-lang.in, get $language, $lang_requires
1153         language=
1154         lang_requires=
1155         . ${lang_frag}
1156         for other in ${lang_requires} ; do
1157           case ,${enable_languages}, in
1158             *,$other,*) ;;
1159             *,all,*) ;;
1160             *,$language,*)
1161               echo " \`$other' language required by \`$language'; enabling" 1>&2
1162               enable_languages="${enable_languages},${other}"
1163               ;;
1164           esac
1165         done
1166         ;;
1167     esac
1168   done
1169
1170   new_enable_languages=c
1171   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1172   potential_languages=c
1173
1174   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1175     case ${lang_frag} in
1176       ..) ;;
1177       # The odd quoting in the next line works around
1178       # an apparent bug in bash 1.12 on linux.
1179       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1180       *)
1181         # From the config-lang.in, get $language, $target_libs,
1182         # $lang_dirs, $boot_language, and $build_by_default
1183         language=
1184         target_libs=
1185         lang_dirs=
1186         boot_language=
1187         build_by_default=
1188         need_gmp=
1189         . ${lang_frag}
1190         potential_languages="${potential_languages},${language}"
1191         # This is quite sensitive to the ordering of the case statement arms.
1192         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1193           *::*:*)
1194             echo "${lang_frag} doesn't set \$language." 1>&2
1195             exit 1
1196             ;;
1197           *:ada:no:*)
1198             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1199             add_this_lang=no
1200             ;;
1201           *,${language},*:*:*:*)
1202             # Language was explicitly selected; include it.
1203             add_this_lang=yes
1204             ;;
1205           *,all,*:*:*:no)
1206             # 'all' was selected, but this is not a default language
1207             # so do not include it.
1208             add_this_lang=no
1209             ;;
1210           *,all,*:*:*:*)
1211             # 'all' was selected and this is a default language; include it.
1212             add_this_lang=yes
1213             ;;
1214           *)
1215             add_this_lang=no
1216             ;;
1217         esac
1218
1219         # Disable languages that need GMP if it isn't available.
1220         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1221           *,${language},*:no:yes)
1222             # Specifically requested language; tell them.
1223             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1224             ;;
1225           *:no:yes)
1226             # Silently disable.
1227             add_this_lang=no
1228             ;;
1229         esac
1230
1231         # Disable a language that is unsupported by the target.
1232         case " $unsupported_languages " in
1233           *" $language "*)
1234             add_this_lang=no
1235             ;;
1236         esac
1237
1238         case $add_this_lang in
1239           no)
1240             # Remove language-dependent dirs.
1241             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1242             ;;
1243           *)
1244             new_enable_languages="$new_enable_languages,$language"
1245             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1246             case ${boot_language} in
1247               yes)
1248                 # Add to (comma-separated) list of stage 1 languages.
1249                 stage1_languages="${stage1_languages},${language}"
1250                 ;;
1251             esac
1252             ;;
1253         esac
1254         ;;
1255     esac
1256   done
1257
1258   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1259   if test "x$missing_languages" != x; then
1260     AC_MSG_ERROR([
1261 The following requested languages could not be built: ${missing_languages}
1262 Recognised languages are: ${potential_languages}])
1263   fi
1264
1265   if test "x$new_enable_languages" != "x$enable_languages"; then
1266     echo The following languages will be built: ${new_enable_languages}
1267   fi
1268   enable_languages="$new_enable_languages"
1269   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1270 fi
1271
1272 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1273 # $build_configdirs and $target_configdirs.
1274 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1275
1276 notsupp=""
1277 for dir in . $skipdirs $noconfigdirs ; do
1278   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1279   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1280     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1281     if test -r $srcdir/$dirname/configure ; then
1282       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1283         true
1284       else
1285         notsupp="$notsupp $dir"
1286       fi
1287     fi
1288   fi
1289   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1290     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1291     if test -r $srcdir/$dirname/configure ; then
1292       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1293         true
1294       else
1295         notsupp="$notsupp $dir"
1296       fi
1297     fi
1298   fi
1299   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1300     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1301     if test -r $srcdir/$dirname/configure ; then
1302       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1303         true
1304       else
1305         notsupp="$notsupp $dir"
1306       fi
1307     fi
1308   fi
1309 done
1310
1311 # Sometimes the tools are distributed with libiberty but with no other
1312 # libraries.  In that case, we don't want to build target-libiberty.
1313 if test -n "${target_configdirs}" ; then
1314   others=
1315   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1316     if test "$i" != "libiberty" ; then
1317       if test -r $srcdir/$i/configure ; then
1318         others=yes;
1319         break;
1320       fi
1321     fi
1322   done
1323   if test -z "${others}" ; then
1324     target_configdirs=
1325   fi
1326 fi
1327
1328 # Quietly strip out all directories which aren't configurable in this tree.
1329 # This relies on all configurable subdirectories being autoconfiscated, which
1330 # is now the case.
1331 build_configdirs_all="$build_configdirs"
1332 build_configdirs=
1333 for i in ${build_configdirs_all} ; do
1334   j=`echo $i | sed -e s/build-//g`
1335   if test -f ${srcdir}/$j/configure ; then
1336     build_configdirs="${build_configdirs} $i"
1337   fi
1338 done
1339
1340 configdirs_all="$configdirs"
1341 configdirs=
1342 for i in ${configdirs_all} ; do
1343   if test -f ${srcdir}/$i/configure ; then
1344     configdirs="${configdirs} $i"
1345   fi
1346 done
1347
1348 target_configdirs_all="$target_configdirs"
1349 target_configdirs=
1350 for i in ${target_configdirs_all} ; do
1351   j=`echo $i | sed -e s/target-//g`
1352   if test -f ${srcdir}/$j/configure ; then
1353     target_configdirs="${target_configdirs} $i"
1354   fi
1355 done
1356
1357 # Produce a warning message for the subdirs we can't configure.
1358 # This isn't especially interesting in the Cygnus tree, but in the individual
1359 # FSF releases, it's important to let people know when their machine isn't
1360 # supported by the one or two programs in a package.
1361
1362 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1363   # If $appdirs is non-empty, at least one of those directories must still
1364   # be configured, or we error out.  (E.g., if the gas release supports a
1365   # specified target in some subdirs but not the gas subdir, we shouldn't
1366   # pretend that all is well.)
1367   if test -n "$appdirs" ; then
1368     for dir in $appdirs ; do
1369       if test -r $dir/Makefile.in ; then
1370         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1371           appdirs=""
1372           break
1373         fi
1374         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1375           appdirs=""
1376           break
1377         fi
1378       fi
1379     done
1380     if test -n "$appdirs" ; then
1381       echo "*** This configuration is not supported by this package." 1>&2
1382       exit 1
1383     fi
1384   fi
1385   # Okay, some application will build, or we don't care to check.  Still
1386   # notify of subdirs not getting built.
1387   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1388   echo "    ${notsupp}" 1>&2
1389   echo "    (Any other directories should still work fine.)" 1>&2
1390 fi
1391
1392 case "$host" in
1393   *msdosdjgpp*)
1394     enable_gdbtk=no ;;
1395 esac
1396
1397 copy_dirs=
1398
1399 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1400 # the named directory are copied to $(tooldir)/sys-include.
1401 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1402   if test x${is_cross_compiler} = xno ; then
1403     echo 1>&2 '***' --with-headers is only supported when cross compiling
1404     exit 1
1405   fi
1406   if test x"${with_headers}" != xyes ; then
1407     case "${exec_prefixoption}" in
1408     "") x=${prefix} ;;
1409     *) x=${exec_prefix} ;;
1410     esac
1411     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1412   fi
1413 fi
1414
1415 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1416 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1417 # are permitted.
1418 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1419   if test x${is_cross_compiler} = xno ; then
1420     echo 1>&2 '***' --with-libs is only supported when cross compiling
1421     exit 1
1422   fi
1423   if test x"${with_libs}" != xyes ; then
1424     # Copy the libraries in reverse order, so that files in the first named
1425     # library override files in subsequent libraries.
1426     case "${exec_prefixoption}" in
1427     "") x=${prefix} ;;
1428     *) x=${exec_prefix} ;;
1429     esac
1430     for l in ${with_libs}; do
1431       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1432     done
1433   fi
1434 fi
1435
1436 # Handle ${copy_dirs}
1437 set fnord ${copy_dirs}
1438 shift
1439 while test $# != 0 ; do
1440   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1441     :
1442   else
1443     echo Copying $1 to $2
1444
1445     # Use the install script to create the directory and all required
1446     # parent directories.
1447     if test -d $2 ; then
1448       :
1449     else
1450       echo >config.temp
1451       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1452     fi
1453
1454     # Copy the directory, assuming we have tar.
1455     # FIXME: Should we use B in the second tar?  Not all systems support it.
1456     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1457
1458     # It is the responsibility of the user to correctly adjust all
1459     # symlinks.  If somebody can figure out how to handle them correctly
1460     # here, feel free to add the code.
1461
1462     echo $1 > $2/COPIED
1463   fi
1464   shift; shift
1465 done
1466
1467 extra_arflags_for_target=
1468 extra_nmflags_for_target=
1469 extra_ranlibflags_for_target=
1470 target_makefile_frag=/dev/null
1471 case "${target}" in
1472   *-*-netware*)
1473     target_makefile_frag="config/mt-netware"
1474     ;;
1475   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1476     target_makefile_frag="config/mt-gnu"
1477     ;;
1478   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1479     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1480     # commands to handle both 32-bit and 64-bit objects.  These flags are
1481     # harmless if we're using GNU nm or ar.
1482     extra_arflags_for_target=" -X32_64"
1483     extra_nmflags_for_target=" -B -X32_64"
1484     ;;
1485   *-*-darwin*)
1486     # ranlib from Darwin requires the -c flag to look at common symbols.
1487     extra_ranlibflags_for_target=" -c"
1488     ;;
1489   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1490     target_makefile_frag="config/mt-wince"
1491     ;;
1492 esac
1493
1494 alphaieee_frag=/dev/null
1495 case $target in
1496   alpha*-*-*)
1497     # This just makes sure to use the -mieee option to build target libs.
1498     # This should probably be set individually by each library.
1499     alphaieee_frag="config/mt-alphaieee"
1500     ;;
1501 esac
1502
1503 # If --enable-target-optspace always use -Os instead of -O2 to build
1504 # the target libraries, similarly if it is not specified, use -Os
1505 # on selected platforms.
1506 ospace_frag=/dev/null
1507 case "${enable_target_optspace}:${target}" in
1508   yes:*)
1509     ospace_frag="config/mt-ospace"
1510     ;;
1511   :d30v-*)
1512     ospace_frag="config/mt-d30v"
1513     ;;
1514   :m32r-* | :d10v-* | :fr30-*)
1515     ospace_frag="config/mt-ospace"
1516     ;;
1517   no:* | :*)
1518     ;;
1519   *)
1520     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1521     ;;
1522 esac
1523
1524 # Set with_gnu_as and with_gnu_ld as appropriate.
1525 #
1526 # This is done by determining whether or not the appropriate directory
1527 # is available, and by checking whether or not specific configurations
1528 # have requested that this magic not happen.
1529 #
1530 # The command line options always override the explicit settings in
1531 # configure.in, and the settings in configure.in override this magic.
1532 #
1533 # If the default for a toolchain is to use GNU as and ld, and you don't
1534 # want to do that, then you should use the --without-gnu-as and
1535 # --without-gnu-ld options for the configure script.
1536
1537 if test x${use_gnu_as} = x &&
1538    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1539   with_gnu_as=yes
1540   extra_host_args="$extra_host_args --with-gnu-as"
1541 fi
1542
1543 if test x${use_gnu_ld} = x &&
1544    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1545   with_gnu_ld=yes
1546   extra_host_args="$extra_host_args --with-gnu-ld"
1547 fi
1548
1549 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1550 # can detect this case.
1551
1552 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1553   with_newlib=yes
1554   extra_host_args="$extra_host_args --with-newlib"
1555 fi
1556
1557 # Default to using --with-stabs for certain targets.
1558 if test x${with_stabs} = x ; then
1559   case "${target}" in
1560   mips*-*-irix[[56]]*)
1561     ;;
1562   mips*-*-* | alpha*-*-osf*)
1563     with_stabs=yes;
1564     extra_host_args="${extra_host_args} --with-stabs"
1565     ;;
1566   esac
1567 fi
1568
1569 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1570 # them automatically.
1571 case "${host}" in
1572   hppa*64*-*-hpux11*)
1573     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1574     ;;
1575 esac
1576
1577 # Some systems (e.g., one of the i386-aix systems the gas testers are
1578 # using) don't handle "\$" correctly, so don't use it here.
1579 tooldir='${exec_prefix}'/${target_alias}
1580 build_tooldir=${tooldir}
1581
1582 # Generate default definitions for YACC, M4, LEX and other programs that run
1583 # on the build machine.  These are used if the Makefile can't locate these
1584 # programs in objdir.
1585 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1586 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1587 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1588 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1589 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1590 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1591 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1592
1593 # Create a .gdbinit file which runs the one in srcdir
1594 # and tells GDB to look there for source files.
1595
1596 if test -r ${srcdir}/.gdbinit ; then
1597   case ${srcdir} in
1598     .) ;;
1599     *) cat > ./.gdbinit <<EOF
1600 # ${NO_EDIT}
1601 dir ${srcdir}
1602 dir .
1603 source ${srcdir}/.gdbinit
1604 EOF
1605     ;;
1606   esac
1607 fi
1608
1609 # Make sure that the compiler is able to generate an executable.  If it
1610 # can't, we are probably in trouble.  We don't care whether we can run the
1611 # executable--we might be using a cross compiler--we only care whether it
1612 # can be created.  At this point the main configure script has set CC.
1613 we_are_ok=no
1614 echo "int main () { return 0; }" > conftest.c
1615 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1616 if test $? = 0 ; then
1617   if test -s conftest || test -s conftest.exe ; then
1618     we_are_ok=yes
1619   fi
1620 fi
1621 case $we_are_ok in
1622   no)
1623     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1624     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1625     rm -f conftest*
1626     exit 1
1627     ;;
1628 esac
1629 rm -f conftest*
1630
1631 # The Solaris /usr/ucb/cc compiler does not appear to work.
1632 case "${host}" in
1633   sparc-sun-solaris2*)
1634       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1635       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1636           could_use=
1637           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1638           if test -d /opt/cygnus/bin ; then
1639               if test "$could_use" = "" ; then
1640                   could_use="/opt/cygnus/bin"
1641               else
1642                   could_use="$could_use or /opt/cygnus/bin"
1643               fi
1644           fi
1645         if test "$could_use" = "" ; then
1646             echo "Warning: compilation may fail because you're using"
1647             echo "/usr/ucb/cc.  You should change your PATH or CC "
1648             echo "variable and rerun configure."
1649         else
1650             echo "Warning: compilation may fail because you're using"
1651             echo "/usr/ucb/cc, when you should use the C compiler from"
1652             echo "$could_use.  You should change your"
1653             echo "PATH or CC variable and rerun configure."
1654         fi
1655       fi
1656   ;;
1657 esac
1658
1659 case "${host}" in
1660   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1661   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1662   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1663 esac
1664
1665 # Record target_configdirs and the configure arguments for target and
1666 # build configuration in Makefile.
1667 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1668 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1669
1670 # Determine whether gdb needs tk/tcl or not.
1671 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1672 # and in that case we want gdb to be built without tk.  Ugh!
1673 # In fact I believe gdb is the *only* package directly dependent on tk,
1674 # so we should be able to put the 'maybe's in unconditionally and
1675 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1676 # 100% sure that that's safe though.
1677
1678 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1679 case "$enable_gdbtk" in
1680   no)
1681     GDB_TK="" ;;
1682   yes)
1683     GDB_TK="${gdb_tk}" ;;
1684   *)
1685     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1686     # distro.  Eventually someone will fix this and move Insight, nee
1687     # gdbtk to a separate directory.
1688     if test -d ${srcdir}/gdb/gdbtk ; then
1689       GDB_TK="${gdb_tk}"
1690     else
1691       GDB_TK=""
1692     fi
1693     ;;
1694 esac
1695
1696 # Strip out unwanted targets.
1697
1698 # While at that, we remove Makefiles if we were started for recursive
1699 # configuration, so that the top-level Makefile reconfigures them,
1700 # like we used to do when configure itself was recursive.
1701
1702 # Loop over modules.  $extrasub must be used with care, limiting as
1703 # much as possible the usage of range addresses.  That's because autoconf
1704 # splits the sed script to overcome limits in the number of commands,
1705 # and relying on carefully-timed sed passes may turn out to be very hard
1706 # to maintain later.  In this particular case, you just have to be careful
1707 # not to nest @if/@endif pairs, because configure will not warn you at all.
1708
1709 AC_ARG_ENABLE([bootstrap],
1710 [  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
1711 enable_bootstrap=default)
1712
1713 # Issue errors and warnings for invalid/strange bootstrap combinations.
1714 case "$configdirs" in
1715   *gcc*) have_compiler=yes ;;
1716   *) have_compiler=no ;;
1717 esac
1718
1719 case "$have_compiler:$host:$target:$enable_bootstrap" in
1720   *:*:*:no) ;;
1721
1722   # Default behavior.  (We'll) enable bootstrap if we have a compiler
1723   # and we are in a native configuration.
1724   yes:$build:$build:default)
1725     # This will become 'yes'
1726     enable_bootstrap=no ;;
1727
1728   *:*:*:default)
1729     enable_bootstrap=no ;;
1730
1731   # We have a compiler and we are in a native configuration, bootstrap is ok
1732   yes:$build:$build:yes | yes:$build:$build:lean)
1733     ;;
1734
1735   # Other configurations, but we have a compiler.  Assume the user knows
1736   # what he's doing.
1737   yes:*:*:yes | yes:*:*:lean)
1738     AC_MSG_WARN([trying to bootstrap a cross compiler])
1739     ;;
1740
1741   # No compiler: if they passed --enable-bootstrap explicitly, fail
1742   no:*:*:yes | no:*:*:lean)
1743     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1744
1745   # Fail if wrong command line
1746   *)
1747     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1748     ;;
1749 esac
1750
1751 # Adjust the toplevel makefile according to whether bootstrap was selected.
1752 case "$enable_bootstrap" in
1753   yes)
1754     bootstrap_lean='#'
1755     default_target=bootstrap
1756     bootstrap_suffix=bootstrap ;;
1757   lean)
1758     bootstrap_lean=''
1759     default_target=bootstrap
1760     bootstrap_suffix=bootstrap ;;
1761   no)
1762     default_target=all
1763     bootstrap_suffix=no-bootstrap ;;
1764 esac
1765 AC_SUBST(bootstrap_lean)
1766 AC_SUBST(default_target)
1767
1768 for module in ${build_configdirs} ; do
1769   if test -z "${no_recursion}" \
1770      && test -f ${build_subdir}/${module}/Makefile; then
1771     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1772     rm -f ${build_subdir}/${module}/Makefile
1773   fi
1774   extrasub="$extrasub
1775 /^@if build-$module\$/d
1776 /^@endif build-$module\$/d
1777 /^@if build-$module-$bootstrap_suffix\$/d
1778 /^@endif build-$module-$bootstrap_suffix\$/d"
1779 done
1780 for module in ${configdirs} ; do
1781   if test -z "${no_recursion}" \
1782      && test -f ${module}/Makefile; then
1783     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1784     rm -f ${module}/Makefile
1785   fi
1786   extrasub="$extrasub
1787 /^@if $module\$/d
1788 /^@endif $module\$/d
1789 /^@if $module-$bootstrap_suffix\$/d
1790 /^@endif $module-$bootstrap_suffix\$/d"
1791 done
1792 for module in ${target_configdirs} ; do
1793   if test -z "${no_recursion}" \
1794      && test -f ${target_subdir}/${module}/Makefile; then
1795     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1796     rm -f ${target_subdir}/${module}/Makefile
1797   fi
1798   extrasub="$extrasub
1799 /^@if target-$module\$/d
1800 /^@endif target-$module\$/d
1801 /^@if target-$module-$bootstrap_suffix\$/d
1802 /^@endif target-$module-$bootstrap_suffix\$/d"
1803 done
1804
1805 extrasub="$extrasub
1806 /^@if /,/^@endif /d"
1807
1808 # Create the serialization dependencies.  This uses a temporary file.
1809
1810 AC_ARG_ENABLE([serial-configure],
1811 [  --enable-serial-[{host,target,build}-]configure
1812                           Force sequential configuration of
1813                           sub-packages for the host, target or build
1814                           machine, or all sub-packages])
1815
1816 case ${enable_serial_configure} in
1817   yes)
1818     enable_serial_build_configure=yes
1819     enable_serial_host_configure=yes
1820     enable_serial_target_configure=yes
1821     ;;
1822 esac
1823
1824 # These force 'configure's to be done one at a time, to avoid problems
1825 # with contention over a shared config.cache.
1826 rm -f serdep.tmp
1827 echo '# serdep.tmp' > serdep.tmp
1828 olditem=
1829 test "x${enable_serial_build_configure}" = xyes &&
1830 for item in ${build_configdirs} ; do
1831   case ${olditem} in
1832     "") ;;
1833     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1834   esac
1835   olditem=${item}
1836 done
1837 olditem=
1838 test "x${enable_serial_host_configure}" = xyes &&
1839 for item in ${configdirs} ; do
1840   case ${olditem} in
1841     "") ;;
1842     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1843   esac
1844   olditem=${item}
1845 done
1846 olditem=
1847 test "x${enable_serial_target_configure}" = xyes &&
1848 for item in ${target_configdirs} ; do
1849   case ${olditem} in
1850     "") ;;
1851     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1852   esac
1853   olditem=${item}
1854 done
1855 serialization_dependencies=serdep.tmp
1856 AC_SUBST_FILE(serialization_dependencies)
1857
1858 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1859 # target and nonopt.  These are the ones we might not want to pass
1860 # down to subconfigures.  Also strip program-prefix, program-suffix,
1861 # and program-transform-name, so that we can pass down a consistent
1862 # program-transform-name.  If autoconf has put single quotes around
1863 # any of these arguments (because they contain shell metacharacters)
1864 # then this will fail; in practice this only happens for
1865 # --program-transform-name, so be sure to override --program-transform-name
1866 # at the end of the argument list.
1867 # These will be expanded by make, so quote '$'.
1868 cat <<\EOF_SED > conftestsed
1869 s/ --no[[^ ]]*/ /g
1870 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1871 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1872 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1873 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1874 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1875 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1876 s/ -cache-file[[= ]][[^ ]]*//g
1877 s/ -srcdir[[= ]][[^ ]]*//g
1878 s/ -host[[= ]][[^ ]]*//g
1879 s/ -build[[= ]][[^ ]]*//g
1880 s/ -target[[= ]][[^ ]]*//g
1881 s/ -program-prefix[[= ]][[^ ]]*//g
1882 s/ -program-suffix[[= ]][[^ ]]*//g
1883 s/ -program-transform-name[[= ]][[^ ]]*//g
1884 s/ [[^' -][^ ]*] / /
1885 s/^ *//;s/ *$//
1886 s,\$,$$,g
1887 EOF_SED
1888 sed -f conftestsed <<EOF_SED > conftestsed.out
1889  ${ac_configure_args}
1890 EOF_SED
1891 baseargs=`cat conftestsed.out`
1892 rm -f conftestsed conftestsed.out
1893
1894 # Add in --program-transform-name, after --program-prefix and
1895 # --program-suffix have been applied to it.  Autoconf has already
1896 # doubled dollar signs and backslashes in program_transform_name; we want
1897 # the backslashes un-doubled, and then the entire thing wrapped in single
1898 # quotes, because this will be expanded first by make and then by the shell.
1899 # Also, because we want to override the logic in subdir configure scripts to
1900 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1901 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1902 ${program_transform_name}
1903 EOF_SED
1904 gcc_transform_name=`cat conftestsed.out`
1905 rm -f conftestsed.out
1906 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1907
1908 # For the build-side libraries, we just need to pretend we're native,
1909 # and not use the same cache file.  Multilibs are neither needed nor
1910 # desired.
1911 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
1912
1913 # For host modules, accept cache file option, or specification as blank.
1914 case "${cache_file}" in
1915 "") # empty
1916   cache_file_option="" ;;
1917 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1918   cache_file_option="--cache-file=${cache_file}" ;;
1919 *) # relative path
1920   cache_file_option="--cache-file=../${cache_file}" ;;
1921 esac
1922
1923 # Host dirs don't like to share a cache file either, horribly enough.
1924 # This seems to be due to autoconf 2.5x stupidity.
1925 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1926
1927 target_configargs=${baseargs}
1928
1929 # Passing a --with-cross-host argument lets the target libraries know
1930 # whether they are being built with a cross-compiler or being built
1931 # native.  However, it would be better to use other mechanisms to make the
1932 # sorts of decisions they want to make on this basis.  Please consider
1933 # this option to be deprecated.  FIXME.
1934 if test x${is_cross_compiler} = xyes ; then
1935   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1936 fi
1937
1938 # Default to --enable-multilib.
1939 if test x${enable_multilib} = x ; then
1940   target_configargs="--enable-multilib ${target_configargs}"
1941 fi
1942
1943 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1944 # changed from the earlier setting of with_newlib.
1945 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1946   target_configargs="--with-newlib ${target_configargs}"
1947 fi
1948
1949 # Different target subdirs use different values of certain variables
1950 # (notably CXX).  Worse, multilibs use *lots* of different values.
1951 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1952 # it doesn't automatically accept command-line overrides of them.
1953 # This means it's not safe for target subdirs to share a cache file,
1954 # which is disgusting, but there you have it.  Hopefully this can be
1955 # fixed in future.  It's still worthwhile to use a cache file for each
1956 # directory.  I think.
1957
1958 # Pass the appropriate --build, --host, --target and --cache-file arguments.
1959 # We need to pass --target, as newer autoconf's requires consistency
1960 # for target_alias and gcc doesn't manage it consistently.
1961 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
1962
1963 FLAGS_FOR_TARGET=
1964 case " $target_configdirs " in
1965  *" newlib "*)
1966   case " $target_configargs " in
1967   *" --with-newlib "*)
1968    case "$target" in
1969    *-cygwin*)
1970      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' ;;
1971    esac
1972
1973    # If we're not building GCC, don't discard standard headers.
1974    if test -d ${srcdir}/gcc; then
1975      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1976
1977      if test "${build}" != "${host}"; then
1978        # On Canadian crosses, CC_FOR_TARGET will have already been set
1979        # by `configure', so we won't have an opportunity to add -Bgcc/
1980        # to it.  This is right: we don't want to search that directory
1981        # for binaries, but we want the header files in there, so add
1982        # them explicitly.
1983        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
1984
1985        # Someone might think of using the pre-installed headers on
1986        # Canadian crosses, in case the installed compiler is not fully
1987        # compatible with the compiler being built.  In this case, it
1988        # would be better to flag an error than risking having
1989        # incompatible object files being constructed.  We can't
1990        # guarantee that an error will be flagged, but let's hope the
1991        # compiler will do it, when presented with incompatible header
1992        # files.
1993      fi
1994    fi
1995
1996    case "${target}-${is_cross_compiler}" in
1997    i[[3456789]]86-*-linux*-no)
1998       # Here host == target, so we don't need to build gcc,
1999       # so we don't want to discard standard headers.
2000       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2001       ;;
2002    *)
2003       # If we're building newlib, use its generic headers last, but search
2004       # for any libc-related directories first (so make it the last -B
2005       # switch).
2006       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2007       ;;
2008    esac
2009    ;;
2010   esac
2011   ;;
2012 esac
2013
2014 # Allow the user to override the flags for
2015 # our build compiler if desired.
2016 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2017
2018 # On Canadian crosses, we'll be searching the right directories for
2019 # the previously-installed cross compiler, so don't bother to add
2020 # flags for directories within the install tree of the compiler
2021 # being built; programs in there won't even run.
2022 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2023   # Search for pre-installed headers if nothing else fits.
2024   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2025 fi
2026
2027 if test "x${use_gnu_ld}" = x &&
2028    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2029   # Arrange for us to find uninstalled linker scripts.
2030   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2031 fi
2032
2033 if test "x${CC_FOR_TARGET+set}" = xset; then
2034   :
2035 elif test -d ${srcdir}/gcc; then
2036   CC_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/'
2037 elif test "$host" = "$target"; then
2038   CC_FOR_TARGET='$(CC)'
2039 else
2040   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
2041 fi
2042 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2043
2044 if test "x${GCJ_FOR_TARGET+set}" = xset; then
2045   :
2046 elif test -d ${srcdir}/gcc; then
2047   GCJ_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/'
2048 elif test "$host" = "$target"; then
2049   GCJ_FOR_TARGET='gcj'
2050 else
2051   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
2052 fi
2053 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2054
2055 if test "x${GFORTRAN_FOR_TARGET+set}" = xset; then
2056   :
2057 elif test -d ${srcdir}/gcc; then
2058   GFORTRAN_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/'
2059 elif test "$host" = "$target"; then
2060   GFORTRAN_FOR_TARGET='gfortran'
2061 else
2062   GFORTRAN_FOR_TARGET=`echo gfortran | sed "${program_transform_name}"`
2063 fi
2064 case $GFORTRAN_FOR_TARGET in
2065 *' $(FLAGS_FOR_TARGET)') ;;
2066 *) GFORTRAN_FOR_TARGET=$GFORTRAN_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
2067 esac
2068
2069 # Don't use libstdc++-v3's flags to configure/build itself.
2070 libstdcxx_flags='`test ! -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags || $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2071 raw_libstdcxx_flags='-L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2072
2073 if test "x${CXX_FOR_TARGET+set}" = xset; then
2074   if test "x${RAW_CXX_FOR_TARGET+set}" != xset; then
2075     RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2076   fi
2077 elif test -d ${srcdir}/gcc; then
2078   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
2079   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
2080   # default whereas gcc does not.
2081   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
2082   # all other cases.
2083   CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ '$libstdcxx_flags
2084   RAW_CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ '$raw_libstdcxx_flags
2085 elif test "$host" = "$target"; then
2086   CXX_FOR_TARGET='$(CXX)'
2087   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2088 else
2089   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
2090   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2091 fi
2092 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2093 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2094
2095 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2096 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2097
2098 # We want to defer the evaluation of `cmd`s and shell variables in
2099 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
2100 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
2101 # quotes, but we still have to duplicate `$'s so that shell variables
2102 # can be expanded by the nested make as shell variables, not as make
2103 # macros.
2104 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2105 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2106
2107 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
2108 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
2109 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
2110 GFORTRAN_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GFORTRAN_FOR_TARGET}"
2111 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
2112 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
2113 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
2114 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
2115
2116 # Makefile fragments.
2117 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2118 do
2119   eval fragval=\$$frag
2120   if test $fragval != /dev/null; then
2121     eval $frag=${srcdir}/$fragval
2122   fi
2123 done
2124 AC_SUBST_FILE(host_makefile_frag)
2125 AC_SUBST_FILE(target_makefile_frag)
2126 AC_SUBST_FILE(alphaieee_frag)
2127 AC_SUBST_FILE(ospace_frag)
2128
2129 # Miscellanea: directories, flags, etc.
2130 AC_SUBST(RPATH_ENVVAR)
2131 AC_SUBST(BUILD_PREFIX)
2132 AC_SUBST(BUILD_PREFIX_1)
2133 AC_SUBST(tooldir)
2134 AC_SUBST(build_tooldir)
2135 AC_SUBST(GDB_TK)
2136
2137 # Build module lists & subconfigure args.
2138 AC_SUBST(build_configargs)
2139 AC_SUBST(build_configdirs)
2140
2141 # Host module lists & subconfigure args.
2142 AC_SUBST(host_configargs)
2143 AC_SUBST(configdirs)
2144
2145 # Target module lists & subconfigure args.
2146 AC_SUBST(target_configargs)
2147 AC_SUBST(target_configdirs)
2148
2149 # Build tools.
2150 AC_SUBST(CC_FOR_BUILD)
2151 AC_SUBST(config_shell)
2152
2153 # Host tools.
2154 NCN_STRICT_CHECK_TOOL(AR, ar)
2155 NCN_STRICT_CHECK_TOOL(AS, as)
2156 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2157 NCN_STRICT_CHECK_TOOL(LD, ld)
2158 NCN_STRICT_CHECK_TOOL(NM, nm)
2159 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2160 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2161 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2162 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2163 AC_SUBST(CC)
2164 AC_SUBST(CXX)
2165 AC_SUBST(CFLAGS)
2166 AC_SUBST(CFLAGS_FOR_BUILD)
2167 AC_SUBST(CXXFLAGS)
2168
2169 # Target tools.
2170 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AR_FOR_TARGET, ar)
2171 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AS_FOR_TARGET, as)
2172 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_DLLTOOL_FOR_TARGET, dlltool)
2173 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_LD_FOR_TARGET, ld)
2174 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_NM_FOR_TARGET, nm)
2175 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_RANLIB_FOR_TARGET, ranlib, :)
2176 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_WINDRES_FOR_TARGET, windres)
2177
2178 AC_SUBST(GCC_FOR_TARGET)
2179 AC_SUBST(FLAGS_FOR_TARGET)
2180 AC_SUBST(CC_FOR_TARGET)
2181 AC_SUBST(GCJ_FOR_TARGET)
2182 AC_SUBST(GFORTRAN_FOR_TARGET)
2183 AC_SUBST(CXX_FOR_TARGET)
2184 AC_SUBST(RAW_CXX_FOR_TARGET)
2185 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2186 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2187
2188 # Fix up target tools.
2189 if test "x${build}" = "x${host}" ; then
2190   # In this case, the newly built tools can and should be used,
2191   # so we override the results of the autoconf tests.
2192   # This should really only happen when the tools are actually being built,
2193   # but that's a further refinement.  The new build scheme, where
2194   # tools are built into a structure paralleling where they're installed,
2195   # should also eliminate all of this cleanly.
2196   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2197   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2198   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2199   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2200   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2201   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2202   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2203 else
2204   # Just use the ones we found.
2205   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2206   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2207   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2208   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2209   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2210   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2211   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2212 fi
2213 AC_SUBST(AR_FOR_TARGET)
2214 AC_SUBST(AS_FOR_TARGET)
2215 AC_SUBST(DLLTOOL_FOR_TARGET)
2216 AC_SUBST(LD_FOR_TARGET)
2217 AC_SUBST(NM_FOR_TARGET)
2218 AC_SUBST(RANLIB_FOR_TARGET)
2219 AC_SUBST(WINDRES_FOR_TARGET)
2220
2221 # Certain tools may need extra flags.
2222 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2223 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2224 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2225
2226 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2227 AC_ARG_ENABLE(maintainer-mode,
2228 [  --enable-maintainer-mode enable make rules and dependencies not useful
2229                           (and sometimes confusing) to the casual installer],
2230       USE_MAINTAINER_MODE=$enableval,
2231       USE_MAINTAINER_MODE=no)
2232 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2233 AC_SUBST(MAINTAINER_MODE_TRUE)
2234 AC_SUBST(MAINTAINER_MODE_FALSE)
2235 if test "$USE_MAINTAINER_MODE" = yes; then
2236   MAINTAINER_MODE_TRUE=
2237   MAINTAINER_MODE_FALSE='#'
2238 else
2239   MAINTAINER_MODE_TRUE='#'
2240   MAINTAINER_MODE_FALSE=
2241 fi
2242 MAINT=$MAINTAINER_MODE_TRUE
2243 AC_SUBST(MAINT)dnl
2244
2245 # ---------------------
2246 # GCC bootstrap support
2247 # ---------------------
2248
2249 # Stage specific cflags for build.
2250 stage1_cflags="-g"
2251 case $build in
2252   vax-*-*)
2253     case ${GCC} in
2254       yes) stage1_cflags="-g -Wa,-J" ;;
2255       *) stage1_cflags="-g -J" ;;
2256     esac ;;
2257   powerpc-*-darwin*)
2258     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2259     # sources; use -no-cpp-precomp to get to GNU cpp.
2260     # Apple's GCC has bugs in designated initializer handling, so disable
2261     # that too.
2262     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2263     ;;
2264 esac
2265 AC_SUBST(stage1_cflags)
2266
2267 # It makes debugging easier if we create as symlinks the stage directories
2268 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
2269 # possible, however, we can resort to mv.
2270 AC_CACHE_CHECK([if symbolic links between directories work],
2271 [gcc_cv_prog_ln_s_dir],
2272 [if test "${LN_S}" = "ln -s" \
2273    && mkdir confdir.s1 \
2274    && ln -s confdir.s1 confdir.s2 \
2275    && echo timestamp1 > confdir.s1/conftest.1 \
2276    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2277    && echo timestamp2 > confdir.s2/conftest.2 \
2278    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2279    && rm -f confdir.s2; then
2280   gcc_cv_prog_ln_s_dir=yes
2281 else
2282   gcc_cv_prog_ln_s_dir=no
2283 fi
2284 rm -rf confdir.s1 confdir.s2])
2285
2286 case ${gcc_cv_prog_ln_s_dir} in
2287   yes)
2288     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2289     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2290   *)
2291     CREATE_LINK_TO_DIR='mv $$1 $$2'
2292     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2293 esac
2294 AC_SUBST(CREATE_LINK_TO_DIR)
2295 AC_SUBST(UNDO_LINK_TO_DIR)
2296
2297 # Enable -Werror in bootstrap stage2 and later.
2298 # Change the default to "no" on release branches.
2299 AC_ARG_ENABLE(werror,
2300 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2301 [enable_werror=yes])
2302 case ${enable_werror} in
2303   yes) stage2_werror_flag="--enable-werror-always" ;;
2304   *) stage2_werror_flag="" ;;
2305 esac
2306 AC_SUBST(stage2_werror_flag)
2307
2308 AC_OUTPUT(Makefile)