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