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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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     noconfigdirs="$noconfigdirs sim target-rda"
 365     ;;
 366   *-*-darwin*)
 367     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 368     noconfigdirs="$noconfigdirs sim target-rda"
 369     noconfigdirs="$noconfigdirs ${libgcj}"
 370     ;;
 371   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 372     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 373     ;;
 374   *-*-freebsd*)
 375     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 376     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 377         && test -f /usr/local/include/gmp.h; then
 378       with_gmp=/usr/local
 379     fi
 380
 381     # Skip some stuff that's unsupported on some FreeBSD configurations.
 382     case "${target}" in
 383       i*86-*-*) ;;
 384       alpha*-*-*) ;;
 385       *)
 386         noconfigdirs="$noconfigdirs ${libgcj}"
 387         ;;
 388     esac
 389     ;;
 390   *-*-kaos*)
 391     # Remove unsupported stuff on all kaOS configurations.
 392     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 393     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 394     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 395     noconfigdirs="$noconfigdirs target-libgloss"
 396     ;;
 397   *-*-netbsd*)
 398     # Skip some stuff on all NetBSD configurations.
 399     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 400
 401     # Skip some stuff that's unsupported on some NetBSD configurations.
 402     case "${target}" in
 403       i*86-*-netbsdelf*) ;;
 404       arm*-*-netbsdelf*) ;;
 405       *)
 406         noconfigdirs="$noconfigdirs ${libgcj}"
 407         ;;
 408     esac
 409     ;;
 410   *-*-netware*)
 411     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 412     ;;
 413   *-*-rtems*)
 414     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 415     ;;
 416     # The tpf target doesn't support gdb yet.
 417   *-*-tpf*)
 418     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 419     ;;
 420   *-*-uclinux*)
 421     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 422     ;;
 423   *-*-vxworks*)
 424     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 425     ;;
 426   m32c-*-*)
 427     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 428     ;;
 429   alpha*-dec-osf*)
 430     # ld works, but does not support shared libraries.
 431     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 432     # gas doesn't generate exception information.
 433     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 434     ;;
 435   alpha*-*-*vms*)
 436     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 437     ;;
 438   alpha*-*-linux*)
 439     # newlib is not 64 bit ready
 440     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 441     ;;
 442   alpha*-*-*)
 443     # newlib is not 64 bit ready
 444     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 445     ;;
 446   am33_2.0-*-linux*)
 447     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 448     ;;
 449   sh-*-linux*)
 450     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 451     ;;
 452   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 453     noconfigdirs="$noconfigdirs ${libgcj}"
 454     noconfigdirs="$noconfigdirs target-examples"
 455     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 456     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 457     noconfigdirs="$noconfigdirs expect dejagnu"
 458     # the C++ libraries don't build on top of CE's C libraries
 459     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 460     noconfigdirs="$noconfigdirs target-newlib"
 461     case "${host}" in
 462       *-*-cygwin*) ;; # keep gdb and readline
 463       *) noconfigdirs="$noconfigdirs gdb readline"
 464          ;;
 465     esac
 466     ;;
 467   arc-*-*)
 468     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 469     ;;
 470   arm-semi-aof )
 471     ;;
 472   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 473     noconfigdirs="$noconfigdirs ${libgcj}"
 474     ;;
 475   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 476     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 477     ;;
 478   arm*-*-symbianelf*)
 479     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 480     ;;
 481   arm-*-pe*)
 482     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 483     ;;
 484   thumb-*-coff)
 485     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 486     ;;
 487   thumb-*-elf)
 488     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 489     ;;
 490   thumb-*-pe)
 491     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 492     ;;
 493   arm-*-riscix*)
 494     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 495     ;;
 496   avr-*-*)
 497     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 498     ;;
 499   c4x-*-* | tic4x-*-*)
 500     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 501     ;;
 502   c54x*-*-* | tic54x-*-*)
 503     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 504     ;;
 505   cris-*-* | crisv32-*-*)
 506     unsupported_languages="$unsupported_languages java"
 507     case "${target}" in
 508       *-*-aout)
 509         unsupported_languages="$unsupported_languages f95"
 510         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 511       *-*-elf)
 512         unsupported_languages="$unsupported_languages f95"
 513         noconfigdirs="$noconfigdirs target-boehm-gc";;
 514       *-*-linux*)
 515         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 516       *)
 517         unsupported_languages="$unsupported_languages f95"
 518         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 519     esac
 520     ;;
 521   crx-*-*)
 522     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 523     ;;
 524   d10v-*-*)
 525     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 526     ;;
 527   d30v-*-*)
 528     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 529     ;;
 530   fr30-*-elf*)
 531     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 532     ;;
 533   frv-*-*)
 534     noconfigdirs="$noconfigdirs ${libgcj}"
 535     ;;
 536   h8300*-*-*)
 537     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 538     ;;
 539   h8500-*-*)
 540     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 541     ;;
 542   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 543     ;;
 544   hppa*64*-*-linux* | parisc*64*-*-linux*)
 545     # In this case, it's because the hppa64-linux target is for
 546     # the kernel only at this point and has no libc, and thus no
 547     # headers, crt*.o, etc., all of which are needed by these.
 548     noconfigdirs="$noconfigdirs target-zlib"
 549     ;;
 550   parisc*-*-linux* | hppa*-*-linux*)
 551     ;;
 552   hppa*-*-*elf* | \
 553   hppa*-*-lites* | \
 554   hppa*-*-openbsd* | \
 555   hppa*64*-*-*)
 556     noconfigdirs="$noconfigdirs ${libgcj}"
 557     ;;
 558   hppa*-*-*)
 559     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 560     # build on HP-UX 10.20.
 561     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 562     ;;
 563   i960-*-*)
 564     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 565     ;;
 566   ia64*-*-elf*)
 567     # No gdb support yet.
 568     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 569     ;;
 570   ia64*-**-hpux*)
 571     # No gdb or ld support yet.
 572     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 573     ;;
 574   i370-*-opened*)
 575     ;;
 576   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 577     noconfigdirs="$noconfigdirs ${libgcj}"
 578     ;;
 579   i[[3456789]]86-*-linux*)
 580     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 581     # not build java stuff by default.
 582     case "${target}" in
 583       *-*-*libc1*)
 584         noconfigdirs="$noconfigdirs ${libgcj}";;
 585     esac
 586
 587     # This section makes it possible to build newlib natively on linux.
 588     # If we are using a cross compiler then don't configure newlib.
 589     if test x${is_cross_compiler} != xno ; then
 590       noconfigdirs="$noconfigdirs target-newlib"
 591     fi
 592     noconfigdirs="$noconfigdirs target-libgloss"
 593     # If we are not using a cross compiler, do configure newlib.
 594     # Note however, that newlib will only be configured in this situation
 595     # if the --with-newlib option has been given, because otherwise
 596     # 'target-newlib' will appear in skipdirs.
 597     ;;
 598   i[[3456789]]86-*-mingw32*)
 599     target_configdirs="$target_configdirs target-mingw"
 600     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 601
 602     # Can't build gdb for mingw32 if not native.
 603     case "${host}" in
 604       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 605       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 606          ;;
 607     esac
 608     ;;
 609   *-*-cygwin*)
 610     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 611     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 612     # always build newlib if winsup directory is present.
 613     if test -d "$srcdir/winsup"; then
 614       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 615     elif test -d "$srcdir/newlib"; then
 616       echo "Warning: winsup is missing so newlib can't be built."
 617     fi
 618
 619     # Can't build gdb for Cygwin if not native.
 620     case "${host}" in
 621       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 622       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 623          ;;
 624     esac
 625     ;;
 626   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 627   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 628     ;;
 629   i[[3456789]]86-*-pe)
 630     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 631     ;;
 632   i[[3456789]]86-*-sco3.2v5*)
 633     # The linker does not yet know about weak symbols in COFF,
 634     # and is not configured to handle mixed ELF and COFF.
 635     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 636     ;;
 637   i[[3456789]]86-*-sco*)
 638     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 639     ;;
 640   i[[3456789]]86-*-solaris2*)
 641     noconfigdirs="$noconfigdirs target-libgloss"
 642     ;;
 643   i[[3456789]]86-*-sysv4*)
 644     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 645     ;;
 646   i[[3456789]]86-*-beos*)
 647     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 648     ;;
 649   m32r-*-*)
 650     noconfigdirs="$noconfigdirs ${libgcj}"
 651     ;;
 652   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 653     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 654     ;;
 655   m68k-*-elf*)
 656     noconfigdirs="$noconfigdirs ${libgcj}"
 657     ;;
 658   m68k-*-coff*)
 659     noconfigdirs="$noconfigdirs ${libgcj}"
 660     ;;
 661   mcore-*-pe*)
 662   # The EPOC C++ environment does not support exceptions or rtti,
 663   # and so building libstdc++-v3 tends not to always work.
 664     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 665     ;;
 666   mmix-*-*)
 667     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 668     unsupported_languages="$unsupported_languages f95 java"
 669     ;;
 670   mn10200-*-*)
 671     noconfigdirs="$noconfigdirs ${libgcj}"
 672     ;;
 673   mn10300-*-*)
 674     noconfigdirs="$noconfigdirs ${libgcj}"
 675     ;;
 676   ms1-*-*)
 677     noconfigdirs="$noconfigdirs sim"
 678     ;;
 679   powerpc-*-aix*)
 680     # copied from rs6000-*-* entry
 681     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 682     ;;
 683   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 684     target_configdirs="$target_configdirs target-winsup"
 685     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 686     # always build newlib.
 687     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 688     ;;
 689     # This is temporary until we can link against shared libraries
 690   powerpcle-*-solaris*)
 691     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 692     ;;
 693   powerpc-*-beos*)
 694     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 695     ;;
 696   powerpc-*-eabi)
 697     noconfigdirs="$noconfigdirs ${libgcj}"
 698     ;;
 699   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 700     ;;
 701   rs6000-*-lynxos*)
 702     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 703     ;;
 704   rs6000-*-aix*)
 705     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 706     ;;
 707   rs6000-*-*)
 708     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 709     ;;
 710   m68k-apollo-*)
 711     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 712     ;;
 713   mips*-*-irix5*)
 714     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 715     ;;
 716   mips*-*-irix6*)
 717     # Linking libjava exceeds command-line length limits on at least
 718     # IRIX 6.2, but not on IRIX 6.5.
 719     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 720     # <oldham@codesourcery.com>
 721     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 722     ;;
 723   mips*-dec-bsd*)
 724     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 725     ;;
 726   mips*-*-bsd*)
 727     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 728     ;;
 729   mipstx39-*-*)
 730     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 731     ;;
 732   mips64*-*-linux*)
 733     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 734     ;;
 735   mips*-*-linux*)
 736     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 737     ;;
 738   mips*-*-*)
 739     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 740     ;;
 741   romp-*-*)
 742     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 743     ;;
 744   sh-*-* | sh64-*-*)
 745     case "${host}" in
 746       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 747       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 748       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 749       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 750     esac
 751     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 752     ;;
 753   sparc-*-elf*)
 754     noconfigdirs="$noconfigdirs ${libgcj}"
 755     ;;
 756   sparc64-*-elf*)
 757     noconfigdirs="$noconfigdirs ${libgcj}"
 758     ;;
 759   sparclite-*-*)
 760     noconfigdirs="$noconfigdirs ${libgcj}"
 761     ;;
 762   sparc-*-sunos4*)
 763     noconfigdirs="$noconfigdirs ${libgcj}"
 764     if test x${is_cross_compiler} != xno ; then
 765            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 766     else
 767            use_gnu_ld=no
 768     fi
 769     ;;
 770   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 771     noconfigdirs="$noconfigdirs ${libgcj}"
 772     ;;
 773   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 774     ;;
 775   v810-*-*)
 776     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 777     ;;
 778   v850-*-*)
 779     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 780     ;;
 781   v850e-*-*)
 782     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 783     ;;
 784   v850ea-*-*)
 785     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 786     ;;
 787   vax-*-vms)
 788     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 789     ;;
 790   vax-*-*)
 791     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 792     ;;
 793   xtensa-*-*)
 794     noconfigdirs="$noconfigdirs ${libgcj}"
 795     ;;
 796   ip2k-*-*)
 797     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 798     ;;
 799   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 800     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 801     ;;
 802   *-*-lynxos*)
 803     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 804     ;;
 805   *-*-*)
 806     noconfigdirs="$noconfigdirs ${libgcj}"
 807     ;;
 808 esac
 809
 810 # If we aren't building newlib, then don't build libgloss, since libgloss
 811 # depends upon some newlib header files.
 812 case "${noconfigdirs}" in
 813   *target-libgloss*) ;;
 814   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 815 esac
 816
 817 # Work in distributions that contain no compiler tools, like Autoconf.
 818 tentative_cc=""
 819 host_makefile_frag=/dev/null
 820 if test -d ${srcdir}/config ; then
 821 case "${host}" in
 822   m68k-hp-hpux*)
 823     # Avoid "too much defining" errors from HPUX compiler.
 824     tentative_cc="cc -Wp,-H256000"
 825     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 826     # If it's HP/UX ar, this should be harmless.
 827     RANLIB="ar ts"
 828     ;;
 829   m68k-apollo-sysv*)
 830     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 831     ;;
 832   m68k-apollo-bsd*)
 833     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 834     # chokes on bfd, the compiler won't let you assign integers to enums, and
 835     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 836     # the apollo compiler" (the preferred version of GCC could be called cc,
 837     # or whatever), but I'm not sure leaving CC as cc is any better...
 838     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 839     # Used to have BISON=yacc.
 840     tentative_cc=gcc
 841     ;;
 842   m88k-dg-dgux*)
 843     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 844     ;;
 845   m88k-harris-cxux*)
 846     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 847     tentative_cc="cc -Xa"
 848     host_makefile_frag="config/mh-cxux"
 849     ;;
 850   m88k-motorola-sysv*)
 851     ;;
 852   mips*-dec-ultrix*)
 853     tentative_cc="cc -Wf,-XNg1000"
 854     host_makefile_frag="config/mh-decstation"
 855     ;;
 856   mips*-nec-sysv4*)
 857     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 858     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 859     host_makefile_frag="config/mh-necv4"
 860     ;;
 861   mips*-sgi-irix4*)
 862     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 863     # environment.  Also bump switch table size so that cp-parse will
 864     # compile.  Bump string length limit so linker builds.
 865     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 866     ;;
 867   mips*-*-sysv4*)
 868     host_makefile_frag="config/mh-sysv4"
 869     ;;
 870   mips*-*-sysv*)
 871     # This is for a MIPS running RISC/os 4.52C.
 872
 873     # This is needed for GDB, but needs to be in the top-level make because
 874     # if a library is compiled with the bsd headers and gets linked with the
 875     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 876     # a different size).
 877     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 878     # known except to select the sysv environment.  Could we use /proc instead?
 879     # These "sysv environments" and "bsd environments" often end up being a pain.
 880     #
 881     # This is not part of CFLAGS because perhaps not all C compilers have this
 882     # option.
 883     tentative_cc="cc -systype sysv"
 884     ;;
 885   i370-ibm-opened*)
 886     tentative_cc="c89"
 887     ;;
 888   i[[3456789]]86-*-sysv5*)
 889     host_makefile_frag="config/mh-sysv5"
 890     ;;
 891   i[[3456789]]86-*-dgux*)
 892     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 893     host_makefile_frag="config/mh-dgux386"
 894     ;;
 895   i[[3456789]]86-ncr-sysv4.3*)
 896     # The MetaWare compiler will generate a copyright message unless you
 897     # turn it off by adding the -Hnocopyr flag.
 898     tentative_cc="cc -Hnocopyr"
 899     ;;
 900   i[[3456789]]86-ncr-sysv4*)
 901     # for an NCR 3000 (i486/SVR4) system.
 902     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 903     # This compiler not only emits obnoxious copyright messages every time
 904     # you run it, but it chokes and dies on a whole bunch of GNU source
 905     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 906     tentative_cc="/usr/ccs/ATT/cc"
 907     host_makefile_frag="config/mh-ncr3000"
 908     ;;
 909   i[[3456789]]86-*-sco3.2v5*)
 910     ;;
 911   i[[3456789]]86-*-sco*)
 912     # The native C compiler botches some simple uses of const.  Unfortunately,
 913     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 914     tentative_cc="cc -Dconst="
 915     host_makefile_frag="config/mh-sco"
 916     ;;
 917   i[[3456789]]86-*-udk*)
 918     host_makefile_frag="config/mh-sysv5"
 919     ;;
 920   i[[3456789]]86-*-solaris2*)
 921     host_makefile_frag="config/mh-sysv4"
 922     ;;
 923   i[[3456789]]86-*-msdosdjgpp*)
 924     host_makefile_frag="config/mh-djgpp"
 925     ;;
 926   *-cygwin*)
 927     host_makefile_frag="config/mh-cygwin"
 928     ;;
 929   *-mingw32*)
 930     ;;
 931   *-interix*)
 932     host_makefile_frag="config/mh-interix"
 933     ;;
 934   vax-*-ultrix2*)
 935     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 936     tentative_cc=gcc
 937     ;;
 938   *-*-solaris2*)
 939     host_makefile_frag="config/mh-solaris"
 940     ;;
 941   m68k-sun-sunos*)
 942     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 943     # without overflowing the jump tables (-J says to use a 32 bit table)
 944     tentative_cc="cc -J"
 945     ;;
 946   *-hp-hpux*)
 947     tentative_cc="cc -Wp,-H256000"
 948     ;;
 949   *-*-hiux*)
 950     tentative_cc="cc -Wp,-H256000"
 951     ;;
 952   rs6000-*-lynxos*)
 953     # /bin/cc is less than useful for our purposes.  Always use GCC
 954     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 955     host_makefile_frag="config/mh-lynxrs6k"
 956     ;;
 957   powerpc-*-darwin*)
 958     host_makefile_frag="config/mh-ppc-darwin"
 959     ;;
 960   *-*-lynxos*)
 961     # /bin/cc is less than useful for our purposes.  Always use GCC
 962     tentative_cc="/bin/gcc"
 963     ;;
 964   *-*-sysv4*)
 965     host_makefile_frag="config/mh-sysv4"
 966     ;;
 967   # This is placed last to prevent interfering with the cases above.
 968   i[[3456789]]86-*-*)
 969     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 970     host_makefile_frag="config/mh-x86omitfp"
 971     ;;
 972 esac
 973 fi
 974
 975 # If we aren't going to be using gcc, see if we can extract a definition
 976 # of CC from the fragment.
 977 # Actually, use the 'pre-extracted' version above.
 978 if test -z "${CC}" && test "${build}" = "${host}" ; then
 979   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 980   found=
 981   for dir in $PATH; do
 982     test -z "$dir" && dir=.
 983     if test -f $dir/gcc; then
 984       found=yes
 985       break
 986     fi
 987   done
 988   IFS="$save_ifs"
 989   if test -z "${found}" && test -n "${tentative_cc}" ; then
 990     CC=$tentative_cc
 991   fi
 992 fi
 993
 994 if test "${build}" != "${host}" ; then
 995   # If we are doing a Canadian Cross, in which the host and build systems
 996   # are not the same, we set reasonable default values for the tools.
 997
 998   CC=${CC-${host_alias}-gcc}
 999   CFLAGS=${CFLAGS-"-g -O2"}
1000   CXX=${CXX-${host_alias}-c++}
1001   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1002   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1003   BUILD_PREFIX=${build_alias}-
1004   BUILD_PREFIX_1=${build_alias}-
1005
1006 else
1007   # Set reasonable default values for some tools even if not Canadian.
1008   # Of course, these are different reasonable default values, originally
1009   # specified directly in the Makefile.
1010   # We don't export, so that autoconf can do its job.
1011   # Note that all these settings are above the fragment inclusion point
1012   # in Makefile.in, so can still be overridden by fragments.
1013   # This is all going to change when we autoconfiscate...
1014
1015   CC_FOR_BUILD="\$(CC)"
1016   BUILD_PREFIX=
1017   BUILD_PREFIX_1=loser-
1018
1019   AC_PROG_CC
1020
1021   # We must set the default linker to the linker used by gcc for the correct
1022   # operation of libtool.  If LD is not defined and we are using gcc, try to
1023   # set the LD default to the ld used by gcc.
1024   if test -z "$LD"; then
1025     if test "$GCC" = yes; then
1026       case $build in
1027       *-*-mingw*)
1028         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1029       *)
1030         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1031       esac
1032       case $gcc_prog_ld in
1033       # Accept absolute paths.
1034       [[\\/]* | [A-Za-z]:[\\/]*)]
1035         LD="$gcc_prog_ld" ;;
1036       esac
1037     fi
1038   fi
1039
1040   CXX=${CXX-"c++"}
1041   CFLAGS=${CFLAGS-"-g"}
1042   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1043 fi
1044
1045 ACX_PROG_GNAT
1046 ACX_PROG_CMP_IGNORE_INITIAL
1047
1048 # Check for GMP and MPFR
1049 gmplibs=
1050 gmpinc=
1051 have_gmp=yes
1052 # Specify a location for mpfr
1053 # check for this first so it ends up on the link line before gmp.
1054 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1055
1056 if test "x$with_mpfr_dir" != x; then
1057   gmpinc="-I$with_mpfr_dir"
1058   gmplibs="$with_mpfr_dir/libmpfr.a"
1059 else
1060   gmplibs="-lmpfr"
1061 fi
1062
1063 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1064
1065 if test "x$with_mpfr" != x; then
1066   gmplibs="-L$with_mpfr/lib $gmplibs"
1067   gmpinc="-I$with_mpfr/include"
1068 fi
1069
1070 # Specify a location for gmp
1071 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1072
1073 if test "x$with_gmp_dir" != x; then
1074   gmpinc="$gmpinc -I$with_gmp_dir"
1075   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1076     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1077   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1078     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1079   fi
1080   # One of the later tests will catch the error if neither library is present.
1081 else
1082   gmplibs="$gmplibs -lgmp"
1083 fi
1084
1085 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1086
1087 if test "x$with_gmp" != x; then
1088   gmplibs="-L$with_gmp/lib $gmplibs"
1089   gmpinc="-I$with_gmp/include $gmpinc"
1090 fi
1091
1092 saved_CFLAGS="$CFLAGS"
1093 CFLAGS="$CFLAGS $gmpinc"
1094 # Check GMP actually works
1095 AC_MSG_CHECKING([for correct version of gmp.h])
1096 AC_TRY_COMPILE([#include "gmp.h"],[
1097 #if __GNU_MP_VERSION < 3
1098 choke me
1099 #endif
1100 ], [AC_MSG_RESULT([yes])],
1101   [AC_MSG_RESULT([no]); have_gmp=no])
1102
1103 if test x"$have_gmp" = xyes; then
1104   AC_MSG_CHECKING([for MPFR])
1105
1106   saved_LIBS="$LIBS"
1107   LIBS="$LIBS $gmplibs"
1108   AC_TRY_LINK([#include <gmp.h>
1109 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1110     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1111   LIBS="$saved_LIBS"
1112   CFLAGS="$saved_CFLAGS"
1113 fi
1114
1115 # Flags needed for both GMP and/or MPFR
1116 AC_SUBST(gmplibs)
1117 AC_SUBST(gmpinc)
1118
1119 # By default, C is the only stage 1 language.
1120 stage1_languages=c
1121 AC_SUBST(stage1_languages)
1122
1123 # Figure out what language subdirectories are present.
1124 # Look if the user specified --enable-languages="..."; if not, use
1125 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1126 # go away some day.
1127 # NB:  embedded tabs in this IF block -- do not untabify
1128 if test -d ${srcdir}/gcc; then
1129   if test x"${enable_languages+set}" != xset; then
1130     if test x"${LANGUAGES+set}" = xset; then
1131       enable_languages="${LANGUAGES}"
1132         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1133     else
1134       enable_languages=all
1135     fi
1136   else
1137     if test x"${enable_languages}" = x ||
1138        test x"${enable_languages}" = xyes;
1139        then
1140       echo configure.in: --enable-languages needs at least one language argument 1>&2
1141       exit 1
1142     fi
1143   fi
1144   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1145
1146   # First scan to see if an enabled language requires some other language.
1147   # We assume that a given config-lang.in will list all the language
1148   # front ends it requires, even if some are required indirectly.
1149   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1150     case ${lang_frag} in
1151       ..) ;;
1152       # The odd quoting in the next line works around
1153       # an apparent bug in bash 1.12 on linux.
1154       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1155       *)
1156         # From the config-lang.in, get $language, $lang_requires
1157         language=
1158         lang_requires=
1159         . ${lang_frag}
1160         for other in ${lang_requires} ; do
1161           case ,${enable_languages}, in
1162             *,$other,*) ;;
1163             *,all,*) ;;
1164             *,$language,*)
1165               echo " \`$other' language required by \`$language'; enabling" 1>&2
1166               enable_languages="${enable_languages},${other}"
1167               ;;
1168           esac
1169         done
1170         ;;
1171     esac
1172   done
1173
1174   new_enable_languages=c
1175   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1176   potential_languages=c
1177
1178   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1179     case ${lang_frag} in
1180       ..) ;;
1181       # The odd quoting in the next line works around
1182       # an apparent bug in bash 1.12 on linux.
1183       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1184       *)
1185         # From the config-lang.in, get $language, $target_libs,
1186         # $lang_dirs, $boot_language, and $build_by_default
1187         language=
1188         target_libs=
1189         lang_dirs=
1190         boot_language=
1191         build_by_default=
1192         need_gmp=
1193         . ${lang_frag}
1194         potential_languages="${potential_languages},${language}"
1195         # This is quite sensitive to the ordering of the case statement arms.
1196         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1197           *::*:*)
1198             echo "${lang_frag} doesn't set \$language." 1>&2
1199             exit 1
1200             ;;
1201           *:ada:no:*)
1202             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1203             add_this_lang=no
1204             ;;
1205           *,${language},*:*:*:*)
1206             # Language was explicitly selected; include it.
1207             add_this_lang=yes
1208             ;;
1209           *,all,*:*:*:no)
1210             # 'all' was selected, but this is not a default language
1211             # so do not include it.
1212             add_this_lang=no
1213             ;;
1214           *,all,*:*:*:*)
1215             # 'all' was selected and this is a default language; include it.
1216             add_this_lang=yes
1217             ;;
1218           *)
1219             add_this_lang=no
1220             ;;
1221         esac
1222
1223         # Disable languages that need GMP if it isn't available.
1224         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1225           *,${language},*:no:yes)
1226             # Specifically requested language; tell them.
1227             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1228             ;;
1229           *:no:yes)
1230             # Silently disable.
1231             add_this_lang=no
1232             ;;
1233         esac
1234
1235         # Disable a language that is unsupported by the target.
1236         case " $unsupported_languages " in
1237           *" $language "*)
1238             add_this_lang=no
1239             ;;
1240         esac
1241
1242         case $add_this_lang in
1243           no)
1244             # Remove language-dependent dirs.
1245             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1246             ;;
1247           *)
1248             new_enable_languages="$new_enable_languages,$language"
1249             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1250             case ${boot_language} in
1251               yes)
1252                 # Add to (comma-separated) list of stage 1 languages.
1253                 stage1_languages="${stage1_languages},${language}"
1254                 ;;
1255             esac
1256             ;;
1257         esac
1258         ;;
1259     esac
1260   done
1261
1262   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1263   if test "x$missing_languages" != x; then
1264     AC_MSG_ERROR([
1265 The following requested languages could not be built: ${missing_languages}
1266 Recognised languages are: ${potential_languages}])
1267   fi
1268
1269   if test "x$new_enable_languages" != "x$enable_languages"; then
1270     echo The following languages will be built: ${new_enable_languages}
1271   fi
1272   enable_languages="$new_enable_languages"
1273   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1274 fi
1275
1276 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1277 # $build_configdirs and $target_configdirs.
1278 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1279
1280 notsupp=""
1281 for dir in . $skipdirs $noconfigdirs ; do
1282   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1283   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1284     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1285     if test -r $srcdir/$dirname/configure ; then
1286       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1287         true
1288       else
1289         notsupp="$notsupp $dir"
1290       fi
1291     fi
1292   fi
1293   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1294     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1295     if test -r $srcdir/$dirname/configure ; then
1296       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1297         true
1298       else
1299         notsupp="$notsupp $dir"
1300       fi
1301     fi
1302   fi
1303   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1304     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1305     if test -r $srcdir/$dirname/configure ; then
1306       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1307         true
1308       else
1309         notsupp="$notsupp $dir"
1310       fi
1311     fi
1312   fi
1313 done
1314
1315 # Sometimes the tools are distributed with libiberty but with no other
1316 # libraries.  In that case, we don't want to build target-libiberty.
1317 if test -n "${target_configdirs}" ; then
1318   others=
1319   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1320     if test "$i" != "libiberty" ; then
1321       if test -r $srcdir/$i/configure ; then
1322         others=yes;
1323         break;
1324       fi
1325     fi
1326   done
1327   if test -z "${others}" ; then
1328     target_configdirs=
1329   fi
1330 fi
1331
1332 # Quietly strip out all directories which aren't configurable in this tree.
1333 # This relies on all configurable subdirectories being autoconfiscated, which
1334 # is now the case.
1335 build_configdirs_all="$build_configdirs"
1336 build_configdirs=
1337 for i in ${build_configdirs_all} ; do
1338   j=`echo $i | sed -e s/build-//g`
1339   if test -f ${srcdir}/$j/configure ; then
1340     build_configdirs="${build_configdirs} $i"
1341   fi
1342 done
1343
1344 configdirs_all="$configdirs"
1345 configdirs=
1346 for i in ${configdirs_all} ; do
1347   if test -f ${srcdir}/$i/configure ; then
1348     configdirs="${configdirs} $i"
1349   fi
1350 done
1351
1352 target_configdirs_all="$target_configdirs"
1353 target_configdirs=
1354 for i in ${target_configdirs_all} ; do
1355   j=`echo $i | sed -e s/target-//g`
1356   if test -f ${srcdir}/$j/configure ; then
1357     target_configdirs="${target_configdirs} $i"
1358   fi
1359 done
1360
1361 # Produce a warning message for the subdirs we can't configure.
1362 # This isn't especially interesting in the Cygnus tree, but in the individual
1363 # FSF releases, it's important to let people know when their machine isn't
1364 # supported by the one or two programs in a package.
1365
1366 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1367   # If $appdirs is non-empty, at least one of those directories must still
1368   # be configured, or we error out.  (E.g., if the gas release supports a
1369   # specified target in some subdirs but not the gas subdir, we shouldn't
1370   # pretend that all is well.)
1371   if test -n "$appdirs" ; then
1372     for dir in $appdirs ; do
1373       if test -r $dir/Makefile.in ; then
1374         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1375           appdirs=""
1376           break
1377         fi
1378         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1379           appdirs=""
1380           break
1381         fi
1382       fi
1383     done
1384     if test -n "$appdirs" ; then
1385       echo "*** This configuration is not supported by this package." 1>&2
1386       exit 1
1387     fi
1388   fi
1389   # Okay, some application will build, or we don't care to check.  Still
1390   # notify of subdirs not getting built.
1391   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1392   echo "    ${notsupp}" 1>&2
1393   echo "    (Any other directories should still work fine.)" 1>&2
1394 fi
1395
1396 case "$host" in
1397   *msdosdjgpp*)
1398     enable_gdbtk=no ;;
1399 esac
1400
1401 copy_dirs=
1402
1403 AC_ARG_WITH([build-sysroot],
1404   [  --with-build-sysroot=sysroot
1405                           use sysroot as the system root during the build],
1406   [if test x"$withval" != x ; then
1407      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1408    fi],
1409   [SYSROOT_CFLAGS_FOR_TARGET=])
1410 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1411
1412 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1413 # the named directory are copied to $(tooldir)/sys-include.
1414 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1415   if test x${is_cross_compiler} = xno ; then
1416     echo 1>&2 '***' --with-headers is only supported when cross compiling
1417     exit 1
1418   fi
1419   if test x"${with_headers}" != xyes ; then
1420     case "${exec_prefixoption}" in
1421     "") x=${prefix} ;;
1422     *) x=${exec_prefix} ;;
1423     esac
1424     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1425   fi
1426 fi
1427
1428 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1429 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1430 # are permitted.
1431 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1432   if test x${is_cross_compiler} = xno ; then
1433     echo 1>&2 '***' --with-libs is only supported when cross compiling
1434     exit 1
1435   fi
1436   if test x"${with_libs}" != xyes ; then
1437     # Copy the libraries in reverse order, so that files in the first named
1438     # library override files in subsequent libraries.
1439     case "${exec_prefixoption}" in
1440     "") x=${prefix} ;;
1441     *) x=${exec_prefix} ;;
1442     esac
1443     for l in ${with_libs}; do
1444       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1445     done
1446   fi
1447 fi
1448
1449 # Handle ${copy_dirs}
1450 set fnord ${copy_dirs}
1451 shift
1452 while test $# != 0 ; do
1453   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1454     :
1455   else
1456     echo Copying $1 to $2
1457
1458     # Use the install script to create the directory and all required
1459     # parent directories.
1460     if test -d $2 ; then
1461       :
1462     else
1463       echo >config.temp
1464       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1465     fi
1466
1467     # Copy the directory, assuming we have tar.
1468     # FIXME: Should we use B in the second tar?  Not all systems support it.
1469     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1470
1471     # It is the responsibility of the user to correctly adjust all
1472     # symlinks.  If somebody can figure out how to handle them correctly
1473     # here, feel free to add the code.
1474
1475     echo $1 > $2/COPIED
1476   fi
1477   shift; shift
1478 done
1479
1480 extra_arflags_for_target=
1481 extra_nmflags_for_target=
1482 extra_ranlibflags_for_target=
1483 target_makefile_frag=/dev/null
1484 case "${target}" in
1485   *-*-netware*)
1486     target_makefile_frag="config/mt-netware"
1487     ;;
1488   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1489     target_makefile_frag="config/mt-gnu"
1490     ;;
1491   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1492     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1493     # commands to handle both 32-bit and 64-bit objects.  These flags are
1494     # harmless if we're using GNU nm or ar.
1495     extra_arflags_for_target=" -X32_64"
1496     extra_nmflags_for_target=" -B -X32_64"
1497     ;;
1498   *-*-darwin*)
1499     # ranlib from Darwin requires the -c flag to look at common symbols.
1500     extra_ranlibflags_for_target=" -c"
1501     ;;
1502   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1503     target_makefile_frag="config/mt-wince"
1504     ;;
1505 esac
1506
1507 alphaieee_frag=/dev/null
1508 case $target in
1509   alpha*-*-*)
1510     # This just makes sure to use the -mieee option to build target libs.
1511     # This should probably be set individually by each library.
1512     alphaieee_frag="config/mt-alphaieee"
1513     ;;
1514 esac
1515
1516 # If --enable-target-optspace always use -Os instead of -O2 to build
1517 # the target libraries, similarly if it is not specified, use -Os
1518 # on selected platforms.
1519 ospace_frag=/dev/null
1520 case "${enable_target_optspace}:${target}" in
1521   yes:*)
1522     ospace_frag="config/mt-ospace"
1523     ;;
1524   :d30v-*)
1525     ospace_frag="config/mt-d30v"
1526     ;;
1527   :m32r-* | :d10v-* | :fr30-*)
1528     ospace_frag="config/mt-ospace"
1529     ;;
1530   no:* | :*)
1531     ;;
1532   *)
1533     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1534     ;;
1535 esac
1536
1537 # Set with_gnu_as and with_gnu_ld as appropriate.
1538 #
1539 # This is done by determining whether or not the appropriate directory
1540 # is available, and by checking whether or not specific configurations
1541 # have requested that this magic not happen.
1542 #
1543 # The command line options always override the explicit settings in
1544 # configure.in, and the settings in configure.in override this magic.
1545 #
1546 # If the default for a toolchain is to use GNU as and ld, and you don't
1547 # want to do that, then you should use the --without-gnu-as and
1548 # --without-gnu-ld options for the configure script.
1549
1550 if test x${use_gnu_as} = x &&
1551    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1552   with_gnu_as=yes
1553   extra_host_args="$extra_host_args --with-gnu-as"
1554 fi
1555
1556 if test x${use_gnu_ld} = x &&
1557    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1558   with_gnu_ld=yes
1559   extra_host_args="$extra_host_args --with-gnu-ld"
1560 fi
1561
1562 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1563 # can detect this case.
1564
1565 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1566   with_newlib=yes
1567   extra_host_args="$extra_host_args --with-newlib"
1568 fi
1569
1570 # Default to using --with-stabs for certain targets.
1571 if test x${with_stabs} = x ; then
1572   case "${target}" in
1573   mips*-*-irix[[56]]*)
1574     ;;
1575   mips*-*-* | alpha*-*-osf*)
1576     with_stabs=yes;
1577     extra_host_args="${extra_host_args} --with-stabs"
1578     ;;
1579   esac
1580 fi
1581
1582 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1583 # them automatically.
1584 case "${host}" in
1585   hppa*64*-*-hpux11*)
1586     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1587     ;;
1588 esac
1589
1590 # Some systems (e.g., one of the i386-aix systems the gas testers are
1591 # using) don't handle "\$" correctly, so don't use it here.
1592 tooldir='${exec_prefix}'/${target_alias}
1593 build_tooldir=${tooldir}
1594
1595 # Generate default definitions for YACC, M4, LEX and other programs that run
1596 # on the build machine.  These are used if the Makefile can't locate these
1597 # programs in objdir.
1598 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1599 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1600 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1601 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1602 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1603 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1604 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1605
1606 # Create a .gdbinit file which runs the one in srcdir
1607 # and tells GDB to look there for source files.
1608
1609 if test -r ${srcdir}/.gdbinit ; then
1610   case ${srcdir} in
1611     .) ;;
1612     *) cat > ./.gdbinit <<EOF
1613 # ${NO_EDIT}
1614 dir ${srcdir}
1615 dir .
1616 source ${srcdir}/.gdbinit
1617 EOF
1618     ;;
1619   esac
1620 fi
1621
1622 # Make sure that the compiler is able to generate an executable.  If it
1623 # can't, we are probably in trouble.  We don't care whether we can run the
1624 # executable--we might be using a cross compiler--we only care whether it
1625 # can be created.  At this point the main configure script has set CC.
1626 we_are_ok=no
1627 echo "int main () { return 0; }" > conftest.c
1628 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1629 if test $? = 0 ; then
1630   if test -s conftest || test -s conftest.exe ; then
1631     we_are_ok=yes
1632   fi
1633 fi
1634 case $we_are_ok in
1635   no)
1636     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1637     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1638     rm -f conftest*
1639     exit 1
1640     ;;
1641 esac
1642 rm -f conftest*
1643
1644 # The Solaris /usr/ucb/cc compiler does not appear to work.
1645 case "${host}" in
1646   sparc-sun-solaris2*)
1647       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1648       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1649           could_use=
1650           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1651           if test -d /opt/cygnus/bin ; then
1652               if test "$could_use" = "" ; then
1653                   could_use="/opt/cygnus/bin"
1654               else
1655                   could_use="$could_use or /opt/cygnus/bin"
1656               fi
1657           fi
1658         if test "$could_use" = "" ; then
1659             echo "Warning: compilation may fail because you're using"
1660             echo "/usr/ucb/cc.  You should change your PATH or CC "
1661             echo "variable and rerun configure."
1662         else
1663             echo "Warning: compilation may fail because you're using"
1664             echo "/usr/ucb/cc, when you should use the C compiler from"
1665             echo "$could_use.  You should change your"
1666             echo "PATH or CC variable and rerun configure."
1667         fi
1668       fi
1669   ;;
1670 esac
1671
1672 case "${host}" in
1673   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1674   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1675   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1676 esac
1677
1678 # Record target_configdirs and the configure arguments for target and
1679 # build configuration in Makefile.
1680 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1681 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1682
1683 # Determine whether gdb needs tk/tcl or not.
1684 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1685 # and in that case we want gdb to be built without tk.  Ugh!
1686 # In fact I believe gdb is the *only* package directly dependent on tk,
1687 # so we should be able to put the 'maybe's in unconditionally and
1688 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1689 # 100% sure that that's safe though.
1690
1691 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1692 case "$enable_gdbtk" in
1693   no)
1694     GDB_TK="" ;;
1695   yes)
1696     GDB_TK="${gdb_tk}" ;;
1697   *)
1698     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1699     # distro.  Eventually someone will fix this and move Insight, nee
1700     # gdbtk to a separate directory.
1701     if test -d ${srcdir}/gdb/gdbtk ; then
1702       GDB_TK="${gdb_tk}"
1703     else
1704       GDB_TK=""
1705     fi
1706     ;;
1707 esac
1708
1709 # Strip out unwanted targets.
1710
1711 # While at that, we remove Makefiles if we were started for recursive
1712 # configuration, so that the top-level Makefile reconfigures them,
1713 # like we used to do when configure itself was recursive.
1714
1715 # Loop over modules.  $extrasub must be used with care, limiting as
1716 # much as possible the usage of range addresses.  That's because autoconf
1717 # splits the sed script to overcome limits in the number of commands,
1718 # and relying on carefully-timed sed passes may turn out to be very hard
1719 # to maintain later.  In this particular case, you just have to be careful
1720 # not to nest @if/@endif pairs, because configure will not warn you at all.
1721
1722 AC_ARG_ENABLE([bootstrap],
1723 [  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
1724 enable_bootstrap=default)
1725
1726 # Issue errors and warnings for invalid/strange bootstrap combinations.
1727 case "$configdirs" in
1728   *gcc*) have_compiler=yes ;;
1729   *) have_compiler=no ;;
1730 esac
1731
1732 case "$have_compiler:$host:$target:$enable_bootstrap" in
1733   *:*:*:no) ;;
1734
1735   # Default behavior.  (We'll) enable bootstrap if we have a compiler
1736   # and we are in a native configuration.
1737   yes:$build:$build:default)
1738     # This will become 'yes'
1739     enable_bootstrap=no ;;
1740
1741   *:*:*:default)
1742     enable_bootstrap=no ;;
1743
1744   # We have a compiler and we are in a native configuration, bootstrap is ok
1745   yes:$build:$build:yes | yes:$build:$build:lean)
1746     ;;
1747
1748   # Other configurations, but we have a compiler.  Assume the user knows
1749   # what he's doing.
1750   yes:*:*:yes | yes:*:*:lean)
1751     AC_MSG_WARN([trying to bootstrap a cross compiler])
1752     ;;
1753
1754   # No compiler: if they passed --enable-bootstrap explicitly, fail
1755   no:*:*:yes | no:*:*:lean)
1756     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1757
1758   # Fail if wrong command line
1759   *)
1760     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1761     ;;
1762 esac
1763
1764 # Adjust the toplevel makefile according to whether bootstrap was selected.
1765 case "$enable_bootstrap" in
1766   yes)
1767     bootstrap_lean='#'
1768     default_target=bootstrap
1769     bootstrap_suffix=bootstrap ;;
1770   lean)
1771     bootstrap_lean=''
1772     default_target=bootstrap
1773     bootstrap_suffix=bootstrap ;;
1774   no)
1775     default_target=all
1776     bootstrap_suffix=no-bootstrap ;;
1777 esac
1778 AC_SUBST(bootstrap_lean)
1779 AC_SUBST(default_target)
1780
1781 for module in ${build_configdirs} ; do
1782   if test -z "${no_recursion}" \
1783      && test -f ${build_subdir}/${module}/Makefile; then
1784     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1785     rm -f ${build_subdir}/${module}/Makefile
1786   fi
1787   extrasub="$extrasub
1788 /^@if build-$module\$/d
1789 /^@endif build-$module\$/d
1790 /^@if build-$module-$bootstrap_suffix\$/d
1791 /^@endif build-$module-$bootstrap_suffix\$/d"
1792 done
1793 for module in ${configdirs} ; do
1794   if test -z "${no_recursion}" \
1795      && test -f ${module}/Makefile; then
1796     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1797     rm -f ${module}/Makefile
1798   fi
1799   extrasub="$extrasub
1800 /^@if $module\$/d
1801 /^@endif $module\$/d
1802 /^@if $module-$bootstrap_suffix\$/d
1803 /^@endif $module-$bootstrap_suffix\$/d"
1804 done
1805 for module in ${target_configdirs} ; do
1806   if test -z "${no_recursion}" \
1807      && test -f ${target_subdir}/${module}/Makefile; then
1808     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1809     rm -f ${target_subdir}/${module}/Makefile
1810   fi
1811   extrasub="$extrasub
1812 /^@if target-$module\$/d
1813 /^@endif target-$module\$/d
1814 /^@if target-$module-$bootstrap_suffix\$/d
1815 /^@endif target-$module-$bootstrap_suffix\$/d"
1816 done
1817
1818 extrasub="$extrasub
1819 /^@if /,/^@endif /d"
1820
1821 # Create the serialization dependencies.  This uses a temporary file.
1822
1823 AC_ARG_ENABLE([serial-configure],
1824 [  --enable-serial-[{host,target,build}-]configure
1825                           Force sequential configuration of
1826                           sub-packages for the host, target or build
1827                           machine, or all sub-packages])
1828
1829 case ${enable_serial_configure} in
1830   yes)
1831     enable_serial_build_configure=yes
1832     enable_serial_host_configure=yes
1833     enable_serial_target_configure=yes
1834     ;;
1835 esac
1836
1837 # These force 'configure's to be done one at a time, to avoid problems
1838 # with contention over a shared config.cache.
1839 rm -f serdep.tmp
1840 echo '# serdep.tmp' > serdep.tmp
1841 olditem=
1842 test "x${enable_serial_build_configure}" = xyes &&
1843 for item in ${build_configdirs} ; do
1844   case ${olditem} in
1845     "") ;;
1846     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1847   esac
1848   olditem=${item}
1849 done
1850 olditem=
1851 test "x${enable_serial_host_configure}" = xyes &&
1852 for item in ${configdirs} ; do
1853   case ${olditem} in
1854     "") ;;
1855     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1856   esac
1857   olditem=${item}
1858 done
1859 olditem=
1860 test "x${enable_serial_target_configure}" = xyes &&
1861 for item in ${target_configdirs} ; do
1862   case ${olditem} in
1863     "") ;;
1864     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1865   esac
1866   olditem=${item}
1867 done
1868 serialization_dependencies=serdep.tmp
1869 AC_SUBST_FILE(serialization_dependencies)
1870
1871 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1872 # target and nonopt.  These are the ones we might not want to pass
1873 # down to subconfigures.  Also strip program-prefix, program-suffix,
1874 # and program-transform-name, so that we can pass down a consistent
1875 # program-transform-name.  If autoconf has put single quotes around
1876 # any of these arguments (because they contain shell metacharacters)
1877 # then this will fail; in practice this only happens for
1878 # --program-transform-name, so be sure to override --program-transform-name
1879 # at the end of the argument list.
1880 # These will be expanded by make, so quote '$'.
1881 cat <<\EOF_SED > conftestsed
1882 s/ --no[[^ ]]*/ /g
1883 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1884 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1885 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1886 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1887 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1888 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1889 s/ -cache-file[[= ]][[^ ]]*//g
1890 s/ -srcdir[[= ]][[^ ]]*//g
1891 s/ -host[[= ]][[^ ]]*//g
1892 s/ -build[[= ]][[^ ]]*//g
1893 s/ -target[[= ]][[^ ]]*//g
1894 s/ -program-prefix[[= ]][[^ ]]*//g
1895 s/ -program-suffix[[= ]][[^ ]]*//g
1896 s/ -program-transform-name[[= ]][[^ ]]*//g
1897 s/ [[^' -][^ ]*] / /
1898 s/^ *//;s/ *$//
1899 s,\$,$$,g
1900 EOF_SED
1901 sed -f conftestsed <<EOF_SED > conftestsed.out
1902  ${ac_configure_args}
1903 EOF_SED
1904 baseargs=`cat conftestsed.out`
1905 rm -f conftestsed conftestsed.out
1906
1907 # Add in --program-transform-name, after --program-prefix and
1908 # --program-suffix have been applied to it.  Autoconf has already
1909 # doubled dollar signs and backslashes in program_transform_name; we want
1910 # the backslashes un-doubled, and then the entire thing wrapped in single
1911 # quotes, because this will be expanded first by make and then by the shell.
1912 # Also, because we want to override the logic in subdir configure scripts to
1913 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1914 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1915 ${program_transform_name}
1916 EOF_SED
1917 gcc_transform_name=`cat conftestsed.out`
1918 rm -f conftestsed.out
1919 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1920
1921 # For the build-side libraries, we just need to pretend we're native,
1922 # and not use the same cache file.  Multilibs are neither needed nor
1923 # desired.
1924 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
1925
1926 # For host modules, accept cache file option, or specification as blank.
1927 case "${cache_file}" in
1928 "") # empty
1929   cache_file_option="" ;;
1930 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1931   cache_file_option="--cache-file=${cache_file}" ;;
1932 *) # relative path
1933   cache_file_option="--cache-file=../${cache_file}" ;;
1934 esac
1935
1936 # Host dirs don't like to share a cache file either, horribly enough.
1937 # This seems to be due to autoconf 2.5x stupidity.
1938 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1939
1940 target_configargs=${baseargs}
1941
1942 # Passing a --with-cross-host argument lets the target libraries know
1943 # whether they are being built with a cross-compiler or being built
1944 # native.  However, it would be better to use other mechanisms to make the
1945 # sorts of decisions they want to make on this basis.  Please consider
1946 # this option to be deprecated.  FIXME.
1947 if test x${is_cross_compiler} = xyes ; then
1948   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1949 fi
1950
1951 # Default to --enable-multilib.
1952 if test x${enable_multilib} = x ; then
1953   target_configargs="--enable-multilib ${target_configargs}"
1954 fi
1955
1956 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1957 # changed from the earlier setting of with_newlib.
1958 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1959   target_configargs="--with-newlib ${target_configargs}"
1960 fi
1961
1962 # Different target subdirs use different values of certain variables
1963 # (notably CXX).  Worse, multilibs use *lots* of different values.
1964 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1965 # it doesn't automatically accept command-line overrides of them.
1966 # This means it's not safe for target subdirs to share a cache file,
1967 # which is disgusting, but there you have it.  Hopefully this can be
1968 # fixed in future.  It's still worthwhile to use a cache file for each
1969 # directory.  I think.
1970
1971 # Pass the appropriate --build, --host, --target and --cache-file arguments.
1972 # We need to pass --target, as newer autoconf's requires consistency
1973 # for target_alias and gcc doesn't manage it consistently.
1974 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
1975
1976 FLAGS_FOR_TARGET=
1977 case " $target_configdirs " in
1978  *" newlib "*)
1979   case " $target_configargs " in
1980   *" --with-newlib "*)
1981    case "$target" in
1982    *-cygwin*)
1983      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' ;;
1984    esac
1985
1986    # If we're not building GCC, don't discard standard headers.
1987    if test -d ${srcdir}/gcc; then
1988      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1989
1990      if test "${build}" != "${host}"; then
1991        # On Canadian crosses, CC_FOR_TARGET will have already been set
1992        # by `configure', so we won't have an opportunity to add -Bgcc/
1993        # to it.  This is right: we don't want to search that directory
1994        # for binaries, but we want the header files in there, so add
1995        # them explicitly.
1996        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
1997
1998        # Someone might think of using the pre-installed headers on
1999        # Canadian crosses, in case the installed compiler is not fully
2000        # compatible with the compiler being built.  In this case, it
2001        # would be better to flag an error than risking having
2002        # incompatible object files being constructed.  We can't
2003        # guarantee that an error will be flagged, but let's hope the
2004        # compiler will do it, when presented with incompatible header
2005        # files.
2006      fi
2007    fi
2008
2009    case "${target}-${is_cross_compiler}" in
2010    i[[3456789]]86-*-linux*-no)
2011       # Here host == target, so we don't need to build gcc,
2012       # so we don't want to discard standard headers.
2013       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2014       ;;
2015    *)
2016       # If we're building newlib, use its generic headers last, but search
2017       # for any libc-related directories first (so make it the last -B
2018       # switch).
2019       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2020       ;;
2021    esac
2022    ;;
2023   esac
2024   ;;
2025 esac
2026
2027 # Allow the user to override the flags for
2028 # our build compiler if desired.
2029 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2030
2031 # On Canadian crosses, we'll be searching the right directories for
2032 # the previously-installed cross compiler, so don't bother to add
2033 # flags for directories within the install tree of the compiler
2034 # being built; programs in there won't even run.
2035 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2036   # Search for pre-installed headers if nothing else fits.
2037   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2038 fi
2039
2040 if test "x${use_gnu_ld}" = x &&
2041    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2042   # Arrange for us to find uninstalled linker scripts.
2043   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2044 fi
2045
2046 # Makefile fragments.
2047 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2048 do
2049   eval fragval=\$$frag
2050   if test $fragval != /dev/null; then
2051     eval $frag=${srcdir}/$fragval
2052   fi
2053 done
2054 AC_SUBST_FILE(host_makefile_frag)
2055 AC_SUBST_FILE(target_makefile_frag)
2056 AC_SUBST_FILE(alphaieee_frag)
2057 AC_SUBST_FILE(ospace_frag)
2058
2059 # Miscellanea: directories, flags, etc.
2060 AC_SUBST(RPATH_ENVVAR)
2061 AC_SUBST(BUILD_PREFIX)
2062 AC_SUBST(BUILD_PREFIX_1)
2063 AC_SUBST(tooldir)
2064 AC_SUBST(build_tooldir)
2065 AC_SUBST(GDB_TK)
2066
2067 # Build module lists & subconfigure args.
2068 AC_SUBST(build_configargs)
2069 AC_SUBST(build_configdirs)
2070
2071 # Host module lists & subconfigure args.
2072 AC_SUBST(host_configargs)
2073 AC_SUBST(configdirs)
2074
2075 # Target module lists & subconfigure args.
2076 AC_SUBST(target_configargs)
2077 AC_SUBST(target_configdirs)
2078
2079 # Build tools.
2080 AC_SUBST(CC_FOR_BUILD)
2081 AC_SUBST(config_shell)
2082
2083 # Host tools.
2084 NCN_STRICT_CHECK_TOOLS(AR, ar)
2085 NCN_STRICT_CHECK_TOOLS(AS, as)
2086 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2087 NCN_STRICT_CHECK_TOOLS(LD, ld)
2088 NCN_STRICT_CHECK_TOOLS(NM, nm)
2089 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2090 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2091 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2092 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2093 AC_SUBST(CC)
2094 AC_SUBST(CXX)
2095 AC_SUBST(CFLAGS)
2096 AC_SUBST(CFLAGS_FOR_BUILD)
2097 AC_SUBST(CXXFLAGS)
2098
2099 # Target tools.  Do the tests using the names they may have passed in
2100 # the environment, then move it to CONFIGURED_*_FOR_TARGET.
2101 NCN_STRICT_CHECK_TARGET_TOOLS(AR_FOR_TARGET, ar)
2102 NCN_STRICT_CHECK_TARGET_TOOLS(AS_FOR_TARGET, as)
2103 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2104 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2105 NCN_STRICT_CHECK_TARGET_TOOLS(DLLTOOL_FOR_TARGET, dlltool)
2106 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2107 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2108 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2109 NCN_STRICT_CHECK_TARGET_TOOLS(LD_FOR_TARGET, ld)
2110 NCN_STRICT_CHECK_TARGET_TOOLS(NM_FOR_TARGET, nm)
2111 NCN_STRICT_CHECK_TARGET_TOOLS(RANLIB_FOR_TARGET, ranlib, :)
2112 NCN_STRICT_CHECK_TARGET_TOOLS(WINDRES_FOR_TARGET, windres)
2113
2114 CONFIGURED_AR_FOR_TARGET="$AR_FOR_TARGET"
2115 CONFIGURED_AS_FOR_TARGET="$AS_FOR_TARGET"
2116 CONFIGURED_CC_FOR_TARGET="$CC_FOR_TARGET"
2117 CONFIGURED_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2118 CONFIGURED_DLLTOOL_FOR_TARGET="$DLLTOOL_FOR_TARGET"
2119 CONFIGURED_GCC_FOR_TARGET="$GCC_FOR_TARGET"
2120 CONFIGURED_GCJ_FOR_TARGET="$GCJ_FOR_TARGET"
2121 CONFIGURED_GFORTRAN_FOR_TARGET="$GFORTRAN_FOR_TARGET"
2122 CONFIGURED_LD_FOR_TARGET="$LD_FOR_TARGET"
2123 CONFIGURED_NM_FOR_TARGET="$NM_FOR_TARGET"
2124 CONFIGURED_RANLIB_FOR_TARGET="$RANLIB_FOR_TARGET"
2125 CONFIGURED_WINDRES_FOR_TARGET="$WINDRES_FOR_TARGET"
2126
2127 AC_SUBST(CONFIGURED_AR_FOR_TARGET)dnl
2128 AC_SUBST(CONFIGURED_AS_FOR_TARGET)dnl
2129 AC_SUBST(CONFIGURED_CC_FOR_TARGET)dnl
2130 AC_SUBST(CONFIGURED_CXX_FOR_TARGET)dnl
2131 AC_SUBST(CONFIGURED_DLLTOOL_FOR_TARGET)dnl
2132 AC_SUBST(CONFIGURED_GCC_FOR_TARGET)dnl
2133 AC_SUBST(CONFIGURED_GCJ_FOR_TARGET)dnl
2134 AC_SUBST(CONFIGURED_GFORTRAN_FOR_TARGET)dnl
2135 AC_SUBST(CONFIGURED_LD_FOR_TARGET)dnl
2136 AC_SUBST(CONFIGURED_NM_FOR_TARGET)dnl
2137 AC_SUBST(CONFIGURED_RANLIB_FOR_TARGET)dnl
2138 AC_SUBST(CONFIGURED_WINDRES_FOR_TARGET)dnl
2139 AC_SUBST(FLAGS_FOR_TARGET)
2140
2141 # Fix up target tools.
2142 if test "x${build}" = "x${host}" ; then
2143   # In this case, the newly built tools can and should be used,
2144   # so we override the results of the autoconf tests.
2145   # This should really only happen when the tools are actually being built,
2146   # but that's a further refinement.  The new build scheme, where
2147   # tools are built into a structure paralleling where they're installed,
2148   # should also eliminate all of this cleanly.
2149   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2150   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2151   CC_FOR_TARGET="\$(USUAL_CC_FOR_TARGET)"
2152   CXX_FOR_TARGET="\$(USUAL_CXX_FOR_TARGET)"
2153   RAW_CXX_FOR_TARGET="\$(USUAL_RAW_CXX_FOR_TARGET)"
2154   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2155   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
2156   GCJ_FOR_TARGET="\$(USUAL_GCJ_FOR_TARGET)"
2157   GFORTRAN_FOR_TARGET="\$(USUAL_GFORTRAN_FOR_TARGET)"
2158   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2159   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2160   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2161   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2162 else
2163   # Just use the ones we found.
2164   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2165   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2166   CC_FOR_TARGET="\$(CONFIGURED_CC_FOR_TARGET)"
2167   CXX_FOR_TARGET="\$(CONFIGURED_CXX_FOR_TARGET)"
2168   RAW_CXX_FOR_TARGET="\$(CONFIGURED_CXX_FOR_TARGET)"
2169   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2170   GCC_FOR_TARGET="\$(CONFIGURED_GCC_FOR_TARGET)"
2171   GCJ_FOR_TARGET="\$(CONFIGURED_GCJ_FOR_TARGET)"
2172   GFORTRAN_FOR_TARGET="\$(CONFIGURED_GFORTRAN_FOR_TARGET)"
2173   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2174   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2175   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2176   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2177 fi
2178
2179 AC_SUBST(RAW_CXX_FOR_TARGET)
2180
2181 # Certain tools may need extra flags.
2182 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2183 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2184 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2185
2186 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2187 AC_ARG_ENABLE(maintainer-mode,
2188 [  --enable-maintainer-mode enable make rules and dependencies not useful
2189                           (and sometimes confusing) to the casual installer],
2190       USE_MAINTAINER_MODE=$enableval,
2191       USE_MAINTAINER_MODE=no)
2192 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2193 AC_SUBST(MAINTAINER_MODE_TRUE)
2194 AC_SUBST(MAINTAINER_MODE_FALSE)
2195 if test "$USE_MAINTAINER_MODE" = yes; then
2196   MAINTAINER_MODE_TRUE=
2197   MAINTAINER_MODE_FALSE='#'
2198 else
2199   MAINTAINER_MODE_TRUE='#'
2200   MAINTAINER_MODE_FALSE=
2201 fi
2202 MAINT=$MAINTAINER_MODE_TRUE
2203 AC_SUBST(MAINT)dnl
2204
2205 # ---------------------
2206 # GCC bootstrap support
2207 # ---------------------
2208
2209 # Stage specific cflags for build.
2210 stage1_cflags="-g"
2211 case $build in
2212   vax-*-*)
2213     case ${GCC} in
2214       yes) stage1_cflags="-g -Wa,-J" ;;
2215       *) stage1_cflags="-g -J" ;;
2216     esac ;;
2217   powerpc-*-darwin*)
2218     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2219     # sources; use -no-cpp-precomp to get to GNU cpp.
2220     # Apple's GCC has bugs in designated initializer handling, so disable
2221     # that too.
2222     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2223     ;;
2224 esac
2225 AC_SUBST(stage1_cflags)
2226
2227 # It makes debugging easier if we create as symlinks the stage directories
2228 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
2229 # possible, however, we can resort to mv.
2230 AC_CACHE_CHECK([if symbolic links between directories work],
2231 [gcc_cv_prog_ln_s_dir],
2232 [if test "${LN_S}" = "ln -s" \
2233    && mkdir confdir.s1 \
2234    && ln -s confdir.s1 confdir.s2 \
2235    && echo timestamp1 > confdir.s1/conftest.1 \
2236    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2237    && echo timestamp2 > confdir.s2/conftest.2 \
2238    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2239    && rm -f confdir.s2; then
2240   gcc_cv_prog_ln_s_dir=yes
2241 else
2242   gcc_cv_prog_ln_s_dir=no
2243 fi
2244 rm -rf confdir.s1 confdir.s2])
2245
2246 case ${gcc_cv_prog_ln_s_dir} in
2247   yes)
2248     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2249     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2250   *)
2251     CREATE_LINK_TO_DIR='mv $$1 $$2'
2252     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2253 esac
2254 AC_SUBST(CREATE_LINK_TO_DIR)
2255 AC_SUBST(UNDO_LINK_TO_DIR)
2256
2257 # Enable -Werror in bootstrap stage2 and later.
2258 # Change the default to "no" on release branches.
2259 AC_ARG_ENABLE(werror,
2260 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2261 [enable_werror=yes])
2262 case ${enable_werror} in
2263   yes) stage2_werror_flag="--enable-werror-always" ;;
2264   *) stage2_werror_flag="" ;;
2265 esac
2266 AC_SUBST(stage2_werror_flag)
2267
2268 AC_OUTPUT(Makefile)