configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   2 #   1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   3 #
   4 # This file is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 ##############################################################################
  19 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  20
  21 sinclude(config/acx.m4)
  22 sinclude(config/gcc-version.m4)
  23 sinclude(config/gxx-include-dir.m4)
  24
  25 AC_INIT(move-if-change)
  26 AC_PREREQ(2.13)
  27 AC_CANONICAL_SYSTEM
  28 AC_ARG_PROGRAM
  29
  30 # Get 'install' or 'install-sh' and its variants.
  31 AC_PROG_INSTALL
  32 ACX_PROG_LN
  33 AC_PROG_LN_S
  34
  35 ### we might need to use some other shell than /bin/sh for running subshells
  36 ### If we are on Windows, search for the shell.  This will permit people
  37 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  38 ### without also having to set CONFIG_SHELL.  This code will work when
  39 ### using bash, which sets OSTYPE.
  40 case "${OSTYPE}" in
  41 *win32*)
  42   if test x${CONFIG_SHELL} = x ; then
  43     if test ! -f /bin/sh ; then
  44       if test x${SHELL} != x && test -f ${SHELL} ; then
  45         CONFIG_SHELL=${SHELL}
  46         export CONFIG_SHELL
  47       else
  48         for prog in sh sh.exe bash bash.exe; do
  49           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  50           for dir in $PATH; do
  51             test -z "$dir" && dir=.
  52             if test -f $dir/$prog; then
  53               CONFIG_SHELL=$dir/$prog
  54               export CONFIG_SHELL
  55               break
  56             fi
  57           done
  58           IFS="$save_ifs"
  59           test -n "${CONFIG_SHELL}" && break
  60         done
  61       fi
  62     fi
  63   fi
  64   ;;
  65 esac
  66
  67 config_shell=${CONFIG_SHELL-/bin/sh}
  68
  69 progname=$0
  70 # if PWD already has a value, it is probably wrong.
  71 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  72
  73 # Export original configure arguments for use by sub-configures.  These
  74 # will be expanded by make, so quote '$'.
  75 tmp="$progname $@"
  76 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
  77 $tmp
  78 EOF_SED
  79 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
  80 rm -f conftestsed.out
  81 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  82
  83 moveifchange=${srcdir}/move-if-change
  84
  85 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  86
  87 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
  88 # a relative path.
  89 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
  90   INSTALL="${srcpwd}/install-sh -c"
  91 fi
  92
  93 # Set srcdir to "." if that's what it is.
  94 # This is important for multilib support.
  95 pwd=`${PWDCMD-pwd}`
  96 if test "${pwd}" = "${srcpwd}" ; then
  97   srcdir=.
  98 fi
  99
 100 topsrcdir=$srcpwd
 101
 102 extra_host_args=
 103
 104 # Define the trigger file to make sure configure will re-run whenever
 105 # the gcc version number changes.
 106 TL_AC_GCC_VERSION([$topsrcdir])
 107 if test -f $gcc_version_trigger ; then
 108   case "$ac_configure_args" in
 109     *--with-gcc-version-trigger=$gcc_version_trigger* )
 110       ;;
 111     * )
 112       # Add to all subconfigure arguments: build, host, and target.
 113       ac_configure_args="$ac_configure_args --with-gcc-version-trigger=$gcc_version_trigger"
 114       ;;
 115   esac
 116 else
 117   gcc_version_trigger=
 118 fi
 119
 120 ### To add a new directory to the tree, first choose whether it is a target
 121 ### or a host dependent tool.  Then put it into the appropriate list
 122 ### (library or tools, host or target), doing a dependency sort.
 123
 124 # Subdirs will be configured in the order listed in build_configdirs,
 125 # configdirs, or target_configdirs; see the serialization section below.
 126
 127 # Dependency sorting is only needed when *configuration* must be done in
 128 # a particular order.  In all cases a dependency should be specified in
 129 # the Makefile, whether or not it's implicitly specified here.
 130
 131 # Double entries in build_configdirs, configdirs, or target_configdirs may
 132 # cause circular dependencies and break everything horribly.
 133
 134 # these library is used by various programs built for the build
 135 # environment
 136 #
 137 build_libs="build-libiberty"
 138
 139 # these tools are built for the build environment
 140 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 141
 142 # these libraries are used by various programs built for the host environment
 143 #
 144 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp"
 145
 146 # these tools are built for the host environment
 147 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 148 # know that we are building the simulator.
 149 # binutils, gas and ld appear in that order because it makes sense to run
 150 # "make check" in that particular order.
 151 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"
 152
 153 # libgcj represents the runtime libraries only used by gcj.
 154 libgcj="target-libffi \
 155         target-boehm-gc \
 156         target-zlib \
 157         target-qthreads \
 158         target-libjava"
 159
 160 # these libraries are built for the target environment, and are built after
 161 # the host libraries and the host tools (which may be a cross compiler)
 162 #
 163 target_libraries="target-libiberty \
 164                 target-libgloss \
 165                 target-newlib \
 166                 target-libstdc++-v3 \
 167                 target-libmudflap \
 168                 target-libgfortran \
 169                 ${libgcj} \
 170                 target-libobjc \
 171                 target-libada"
 172
 173 # these tools are built using the target libraries, and are intended to
 174 # run only in the target environment
 175 #
 176 # note: any program that *uses* libraries that are in the "target_libraries"
 177 # list belongs in this list.  those programs are also very likely
 178 # candidates for the "native_only" list which follows
 179 #
 180 target_tools="target-examples target-groff target-gperf target-rda"
 181
 182 ################################################################################
 183
 184 ## All tools belong in one of the four categories, and are assigned above
 185 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 186 ## is important because configure will choke if they ever get through.
 187 ## ${configdirs} is directories we build using the host tools.
 188 ## ${target_configdirs} is directories we build using the target tools.
 189 configdirs=`echo ${host_libs} ${host_tools}`
 190 target_configdirs=`echo ${target_libraries} ${target_tools}`
 191 build_configdirs=`echo ${build_libs} ${build_tools}`
 192
 193 ################################################################################
 194
 195 srcname="gnu development package"
 196
 197 # This gets set non-empty for some net releases of packages.
 198 appdirs=""
 199
 200 # Define is_cross_compiler to save on calls to 'test'.
 201 is_cross_compiler=
 202 if test x"${host}" = x"${target}" ; then
 203   is_cross_compiler=no
 204 else
 205   is_cross_compiler=yes
 206 fi
 207
 208 # Find the build and target subdir names.
 209 GCC_TOPLEV_SUBDIRS
 210
 211 # Skipdirs are removed silently.
 212 skipdirs=
 213 # Noconfigdirs are removed loudly.
 214 noconfigdirs=""
 215
 216 use_gnu_ld=
 217 # Make sure we don't let GNU ld be added if we didn't want it.
 218 if test x$with_gnu_ld = xno ; then
 219   use_gnu_ld=no
 220   noconfigdirs="$noconfigdirs ld"
 221 fi
 222
 223 use_gnu_as=
 224 # Make sure we don't let GNU as be added if we didn't want it.
 225 if test x$with_gnu_as = xno ; then
 226   use_gnu_as=no
 227   noconfigdirs="$noconfigdirs gas"
 228 fi
 229
 230 # some tools are so dependent upon X11 that if we're not building with X,
 231 # it's not even worth trying to configure, much less build, that tool.
 232
 233 case ${with_x} in
 234   yes | "") ;; # the default value for this tree is that X11 is available
 235   no)
 236     skipdirs="${skipdirs} tk itcl libgui"
 237     # We won't be able to build gdbtk without X.
 238     enable_gdbtk=no
 239     ;;
 240   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 241 esac
 242
 243 # Some tools are only suitable for building in a "native" situation.
 244 # Remove these if host!=target.
 245 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"
 246
 247 # Similarly, some are only suitable for cross toolchains.
 248 # Remove these if host=target.
 249 cross_only="target-libgloss target-newlib target-opcodes"
 250
 251 case $is_cross_compiler in
 252   no) skipdirs="${skipdirs} ${cross_only}" ;;
 253   yes) skipdirs="${skipdirs} ${native_only}" ;;
 254 esac
 255
 256 # If both --with-headers and --with-libs are specified, default to
 257 # --without-newlib.
 258 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 259    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 260   if test x"${with_newlib}" = x ; then
 261     with_newlib=no
 262   fi
 263 fi
 264
 265 # Recognize --with-newlib/--without-newlib.
 266 case ${with_newlib} in
 267   no) skipdirs="${skipdirs} target-newlib" ;;
 268   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 269 esac
 270
 271 # Configure extra directories which are host specific
 272
 273 case "${host}" in
 274   *-cygwin*)
 275     configdirs="$configdirs libtermcap" ;;
 276 esac
 277
 278 # Remove more programs from consideration, based on the host or
 279 # target this usually means that a port of the program doesn't
 280 # exist yet.
 281
 282 case "${host}" in
 283   hppa*64*-*-*)
 284     noconfigdirs="$noconfigdirs byacc"
 285     ;;
 286   i[[3456789]]86-*-vsta)
 287     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 288     ;;
 289   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 290     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 291     ;;
 292   i[[3456789]]86-*-mingw32*)
 293     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 294     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 295     ;;
 296   i[[3456789]]86-*-beos*)
 297     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 298     ;;
 299   *-*-cygwin*)
 300     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 301     ;;
 302   *-*-netbsd*)
 303     noconfigdirs="$noconfigdirs rcs"
 304     ;;
 305   ppc*-*-pe)
 306     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 307     ;;
 308   powerpc-*-beos*)
 309     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 310     ;;
 311   *-*-darwin*)
 312     noconfigdirs="$noconfigdirs tk itcl libgui"
 313     ;;
 314 esac
 315
 316
 317 AC_ARG_ENABLE(libada,
 318 [  --enable-libada        Builds libada directory],
 319 ENABLE_LIBADA=$enableval,
 320 ENABLE_LIBADA=yes)
 321 if test "${ENABLE_LIBADA}" != "yes" ; then
 322   noconfigdirs="$noconfigdirs target-libada"
 323 fi
 324
 325 # Save it here so that, even in case of --enable-libgcj, if the Java
 326 # front-end isn't enabled, we still get libgcj disabled.
 327 libgcj_saved=$libgcj
 328 case $enable_libgcj in
 329 yes)
 330   # If we reset it here, it won't get added to noconfigdirs in the
 331   # target-specific build rules, so it will be forcibly enabled
 332   # (unless the Java language itself isn't enabled).
 333   libgcj=
 334   ;;
 335 no)
 336   # Make sure we get it printed in the list of not supported target libs.
 337   noconfigdirs="$noconfigdirs ${libgcj}"
 338   ;;
 339 esac
 340
 341
 342 # Allow --disable-libmudflap to exclude target-libmudflap
 343 case $enable_libmudflap in
 344 yes)
 345     ;;
 346 no)
 347     noconfigdirs="$noconfigdirs target-libmudflap"
 348     ;;
 349 "")
 350     case "${target}" in
 351     *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
 352         # Enable libmudflap by default in GNU and friends.
 353         ;;
 354     *-*-freebsd*)
 355         # Enable libmudflap by default in FreeBSD.
 356         ;;
 357     *)
 358         # Disable it by default everywhere else.
 359         noconfigdirs="$noconfigdirs target-libmudflap"
 360         ;;
 361     esac
 362 esac
 363
 364
 365 case "${target}" in
 366   *-*-chorusos)
 367     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 368     ;;
 369   powerpc-*-darwin*)
 370     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 371     ;;
 372   *-*-darwin*)
 373     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 374     noconfigdirs="$noconfigdirs ${libgcj}"
 375     ;;
 376   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 377     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 378     ;;
 379   *-*-freebsd*)
 380     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 381     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 382         && test -f /usr/local/include/gmp.h; then
 383       with_gmp=/usr/local
 384     fi
 385
 386     # Skip some stuff that's unsupported on some FreeBSD configurations.
 387     case "${target}" in
 388       i*86-*-*) ;;
 389       alpha*-*-*) ;;
 390       *)
 391         noconfigdirs="$noconfigdirs ${libgcj}"
 392         ;;
 393     esac
 394     ;;
 395   *-*-kaos*)
 396     # Remove unsupported stuff on all kaOS configurations.
 397     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 398     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 399     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 400     noconfigdirs="$noconfigdirs target-libgloss"
 401     ;;
 402   *-*-netbsd*)
 403     # Skip some stuff on all NetBSD configurations.
 404     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 405
 406     # Skip some stuff that's unsupported on some NetBSD configurations.
 407     case "${target}" in
 408       i*86-*-netbsdelf*) ;;
 409       arm*-*-netbsdelf*) ;;
 410       *)
 411         noconfigdirs="$noconfigdirs ${libgcj}"
 412         ;;
 413     esac
 414     ;;
 415   *-*-netware*)
 416     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 417     ;;
 418   *-*-rtems*)
 419     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 420     ;;
 421   *-*-uclinux*)
 422     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 423     ;;
 424   *-*-vxworks*)
 425     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}"
 426     ;;
 427   alpha*-dec-osf*)
 428     # ld works, but does not support shared libraries.
 429     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 430     # gas doesn't generate exception information.
 431     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 432     ;;
 433   alpha*-*-*vms*)
 434     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 435     ;;
 436   alpha*-*-linux*)
 437     # newlib is not 64 bit ready
 438     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 439     ;;
 440   alpha*-*-*)
 441     # newlib is not 64 bit ready
 442     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 443     ;;
 444   am33_2.0-*-linux*)
 445     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 446     ;;
 447   sh-*-linux*)
 448     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 449     ;;
 450   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 451     noconfigdirs="$noconfigdirs ${libgcj}"
 452     noconfigdirs="$noconfigdirs target-examples"
 453     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 454     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 455     noconfigdirs="$noconfigdirs expect dejagnu"
 456     # the C++ libraries don't build on top of CE's C libraries
 457     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 458     noconfigdirs="$noconfigdirs target-newlib"
 459     case "${host}" in
 460       *-*-cygwin*) ;; # keep gdb and readline
 461       *) noconfigdirs="$noconfigdirs gdb readline"
 462          ;;
 463     esac
 464     ;;
 465   arc-*-*)
 466     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 467     ;;
 468   arm-semi-aof )
 469     ;;
 470   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 471     noconfigdirs="$noconfigdirs ${libgcj}"
 472     ;;
 473   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 474     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 475     ;;
 476   arm*-*-symbianelf*)
 477     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 478     ;;
 479   arm-*-pe*)
 480     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 481     ;;
 482   thumb-*-coff)
 483     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 484     ;;
 485   thumb-*-elf)
 486     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 487     ;;
 488   thumb-*-pe)
 489     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 490     ;;
 491   arm-*-riscix*)
 492     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 493     ;;
 494   avr-*-*)
 495     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 496     ;;
 497   c4x-*-* | tic4x-*-*)
 498     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 499     ;;
 500   c54x*-*-* | tic54x-*-*)
 501     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 502     ;;
 503   cris-*-*)
 504     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 505     ;;
 506   crx-*-*)
 507     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 508     ;;
 509   d10v-*-*)
 510     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 511     ;;
 512   d30v-*-*)
 513     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 514     ;;
 515   fr30-*-elf*)
 516     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 517     ;;
 518   frv-*-*)
 519     noconfigdirs="$noconfigdirs ${libgcj}"
 520     ;;
 521   h8300*-*-*)
 522     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 523     ;;
 524   h8500-*-*)
 525     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 526     ;;
 527   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 528     ;;
 529   hppa*64*-*-linux* | parisc*64*-*-linux*)
 530     # In this case, it's because the hppa64-linux target is for
 531     # the kernel only at this point and has no libc, and thus no
 532     # headers, crt*.o, etc., all of which are needed by these.
 533     noconfigdirs="$noconfigdirs target-zlib"
 534     ;;
 535   parisc*-*-linux* | hppa*-*-linux*)
 536     ;;
 537   hppa*-*-*elf* | \
 538   hppa*-*-lites* | \
 539   hppa*-*-openbsd* | \
 540   hppa*64*-*-*)
 541     noconfigdirs="$noconfigdirs ${libgcj}"
 542     ;;
 543   hppa*-*-*)
 544     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 545     # build on HP-UX 10.20.
 546     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 547     ;;
 548   i960-*-*)
 549     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 550     ;;
 551   ia64*-*-elf*)
 552     # No gdb support yet.
 553     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 554     ;;
 555   ia64*-**-hpux*)
 556     # No gdb or ld support yet.
 557     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 558     ;;
 559   i370-*-opened*)
 560     ;;
 561   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 562     noconfigdirs="$noconfigdirs ${libgcj}"
 563     ;;
 564   i[[3456789]]86-*-linux*)
 565     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 566     # not build java stuff by default.
 567     case "${target}" in
 568       *-*-*libc1*)
 569         noconfigdirs="$noconfigdirs ${libgcj}";;
 570     esac
 571
 572     # This section makes it possible to build newlib natively on linux.
 573     # If we are using a cross compiler then don't configure newlib.
 574     if test x${is_cross_compiler} != xno ; then
 575       noconfigdirs="$noconfigdirs target-newlib"
 576     fi
 577     noconfigdirs="$noconfigdirs target-libgloss"
 578     # If we are not using a cross compiler, do configure newlib.
 579     # Note however, that newlib will only be configured in this situation
 580     # if the --with-newlib option has been given, because otherwise
 581     # 'target-newlib' will appear in skipdirs.
 582     ;;
 583   i[[3456789]]86-*-mingw32*)
 584     target_configdirs="$target_configdirs target-mingw"
 585     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 586
 587     # Can't build gdb for mingw32 if not native.
 588     case "${host}" in
 589       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 590       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 591          ;;
 592     esac
 593     ;;
 594   *-*-cygwin*)
 595     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 596     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 597     # always build newlib if winsup directory is present.
 598     if test -d "$srcdir/winsup"; then
 599       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 600     elif test -d "$srcdir/newlib"; then
 601       echo "Warning: winsup is missing so newlib can't be built."
 602     fi
 603
 604     # Can't build gdb for Cygwin if not native.
 605     case "${host}" in
 606       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 607       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 608          ;;
 609     esac
 610     ;;
 611   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 612   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 613     ;;
 614   i[[3456789]]86-*-pe)
 615     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 616     ;;
 617   i[[3456789]]86-*-sco3.2v5*)
 618     # The linker does not yet know about weak symbols in COFF,
 619     # and is not configured to handle mixed ELF and COFF.
 620     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 621     ;;
 622   i[[3456789]]86-*-sco*)
 623     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 624     ;;
 625   i[[3456789]]86-*-solaris2*)
 626     noconfigdirs="$noconfigdirs target-libgloss"
 627     ;;
 628   i[[3456789]]86-*-sysv4*)
 629     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 630     ;;
 631   i[[3456789]]86-*-beos*)
 632     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 633     ;;
 634   m32r-*-*)
 635     noconfigdirs="$noconfigdirs ${libgcj}"
 636     ;;
 637   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 638     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 639     ;;
 640   m68k-*-elf*)
 641     noconfigdirs="$noconfigdirs ${libgcj}"
 642     ;;
 643   m68k-*-coff*)
 644     noconfigdirs="$noconfigdirs ${libgcj}"
 645     ;;
 646   mcore-*-pe*)
 647   # The EPOC C++ environment does not support exceptions or rtti,
 648   # and so building libstdc++-v3 tends not to always work.
 649     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 650     ;;
 651   mmix-*-*)
 652     noconfigdirs="$noconfigdirs ${libgcj} gdb libgloss target-libgfortran"
 653     ;;
 654   mn10200-*-*)
 655     noconfigdirs="$noconfigdirs ${libgcj}"
 656     ;;
 657   mn10300-*-*)
 658     noconfigdirs="$noconfigdirs ${libgcj}"
 659     ;;
 660   powerpc-*-aix*)
 661     # copied from rs6000-*-* entry
 662     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 663     ;;
 664   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 665     target_configdirs="$target_configdirs target-winsup"
 666     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 667     # always build newlib.
 668     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 669     ;;
 670     # This is temporary until we can link against shared libraries
 671   powerpcle-*-solaris*)
 672     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 673     ;;
 674   powerpc-*-beos*)
 675     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 676     ;;
 677   powerpc-*-eabi)
 678     noconfigdirs="$noconfigdirs ${libgcj}"
 679     ;;
 680   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 681     ;;
 682   rs6000-*-lynxos*)
 683     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 684     ;;
 685   rs6000-*-aix*)
 686     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 687     ;;
 688   rs6000-*-*)
 689     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 690     ;;
 691   m68k-apollo-*)
 692     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 693     ;;
 694   mips*-*-irix5*)
 695     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 696     ;;
 697   mips*-*-irix6*)
 698     # Linking libjava exceeds command-line length limits on at least
 699     # IRIX 6.2, but not on IRIX 6.5.
 700     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 701     # <oldham@codesourcery.com>
 702     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 703     ;;
 704   mips*-dec-bsd*)
 705     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 706     ;;
 707   mips*-*-bsd*)
 708     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 709     ;;
 710   mipstx39-*-*)
 711     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 712     ;;
 713   mips64*-*-linux*)
 714     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 715     ;;
 716   mips*-*-linux*)
 717     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 718     ;;
 719   mips*-*-*)
 720     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 721     ;;
 722   romp-*-*)
 723     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 724     ;;
 725   sh-*-*)
 726     case "${host}" in
 727       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 728       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 729       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 730       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 731     esac
 732     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 733     ;;
 734   sh64-*-*)
 735     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 736     ;;
 737   sparc-*-elf*)
 738     noconfigdirs="$noconfigdirs ${libgcj}"
 739     ;;
 740   sparc64-*-elf*)
 741     noconfigdirs="$noconfigdirs ${libgcj}"
 742     ;;
 743   sparclite-*-*)
 744     noconfigdirs="$noconfigdirs ${libgcj}"
 745     ;;
 746   sparc-*-sunos4*)
 747     noconfigdirs="$noconfigdirs ${libgcj}"
 748     if test x${is_cross_compiler} != xno ; then
 749            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 750     else
 751            use_gnu_ld=no
 752     fi
 753     ;;
 754   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 755     ;;
 756   v810-*-*)
 757     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 758     ;;
 759   v850-*-*)
 760     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 761     ;;
 762   v850e-*-*)
 763     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 764     ;;
 765   v850ea-*-*)
 766     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 767     ;;
 768   vax-*-vms)
 769     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 770     ;;
 771   vax-*-*)
 772     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 773     ;;
 774   xtensa-*-*)
 775     noconfigdirs="$noconfigdirs ${libgcj}"
 776     ;;
 777   ip2k-*-*)
 778     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 779     ;;
 780   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 781     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 782     ;;
 783   *-*-lynxos*)
 784     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 785     ;;
 786   *-*-*)
 787     noconfigdirs="$noconfigdirs ${libgcj}"
 788     ;;
 789 esac
 790
 791 # If we aren't building newlib, then don't build libgloss, since libgloss
 792 # depends upon some newlib header files.
 793 case "${noconfigdirs}" in
 794   *target-libgloss*) ;;
 795   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 796 esac
 797
 798 # Work in distributions that contain no compiler tools, like Autoconf.
 799 tentative_cc=""
 800 host_makefile_frag=/dev/null
 801 if test -d ${srcdir}/config ; then
 802 case "${host}" in
 803   m68k-hp-hpux*)
 804     # Avoid "too much defining" errors from HPUX compiler.
 805     tentative_cc="cc -Wp,-H256000"
 806     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 807     # If it's HP/UX ar, this should be harmless.
 808     RANLIB="ar ts"
 809     ;;
 810   m68k-apollo-sysv*)
 811     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 812     ;;
 813   m68k-apollo-bsd*)
 814     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 815     # chokes on bfd, the compiler won't let you assign integers to enums, and
 816     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 817     # the apollo compiler" (the preferred version of GCC could be called cc,
 818     # or whatever), but I'm not sure leaving CC as cc is any better...
 819     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 820     # Used to have BISON=yacc.
 821     tentative_cc=gcc
 822     ;;
 823   m88k-dg-dgux*)
 824     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 825     ;;
 826   m88k-harris-cxux*)
 827     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 828     tentative_cc="cc -Xa"
 829     host_makefile_frag="config/mh-cxux"
 830     ;;
 831   m88k-motorola-sysv*)
 832     ;;
 833   mips*-dec-ultrix*)
 834     tentative_cc="cc -Wf,-XNg1000"
 835     host_makefile_frag="config/mh-decstation"
 836     ;;
 837   mips*-nec-sysv4*)
 838     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 839     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 840     host_makefile_frag="config/mh-necv4"
 841     ;;
 842   mips*-sgi-irix4*)
 843     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 844     # environment.  Also bump switch table size so that cp-parse will
 845     # compile.  Bump string length limit so linker builds.
 846     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 847     ;;
 848   mips*-*-sysv4*)
 849     host_makefile_frag="config/mh-sysv4"
 850     ;;
 851   mips*-*-sysv*)
 852     # This is for a MIPS running RISC/os 4.52C.
 853
 854     # This is needed for GDB, but needs to be in the top-level make because
 855     # if a library is compiled with the bsd headers and gets linked with the
 856     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 857     # a different size).
 858     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 859     # known except to select the sysv environment.  Could we use /proc instead?
 860     # These "sysv environments" and "bsd environments" often end up being a pain.
 861     #
 862     # This is not part of CFLAGS because perhaps not all C compilers have this
 863     # option.
 864     tentative_cc="cc -systype sysv"
 865     ;;
 866   i370-ibm-opened*)
 867     tentative_cc="c89"
 868     ;;
 869   i[[3456789]]86-*-sysv5*)
 870     host_makefile_frag="config/mh-sysv5"
 871     ;;
 872   i[[3456789]]86-*-dgux*)
 873     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 874     host_makefile_frag="config/mh-dgux386"
 875     ;;
 876   i[[3456789]]86-ncr-sysv4.3*)
 877     # The MetaWare compiler will generate a copyright message unless you
 878     # turn it off by adding the -Hnocopyr flag.
 879     tentative_cc="cc -Hnocopyr"
 880     ;;
 881   i[[3456789]]86-ncr-sysv4*)
 882     # for an NCR 3000 (i486/SVR4) system.
 883     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 884     # This compiler not only emits obnoxious copyright messages every time
 885     # you run it, but it chokes and dies on a whole bunch of GNU source
 886     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 887     tentative_cc="/usr/ccs/ATT/cc"
 888     host_makefile_frag="config/mh-ncr3000"
 889     ;;
 890   i[[3456789]]86-*-sco3.2v5*)
 891     ;;
 892   i[[3456789]]86-*-sco*)
 893     # The native C compiler botches some simple uses of const.  Unfortunately,
 894     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 895     tentative_cc="cc -Dconst="
 896     host_makefile_frag="config/mh-sco"
 897     ;;
 898   i[[3456789]]86-*-udk*)
 899     host_makefile_frag="config/mh-sysv5"
 900     ;;
 901   i[[3456789]]86-*-solaris2*)
 902     host_makefile_frag="config/mh-sysv4"
 903     ;;
 904   i[[3456789]]86-*-msdosdjgpp*)
 905     host_makefile_frag="config/mh-djgpp"
 906     ;;
 907   *-cygwin*)
 908     host_makefile_frag="config/mh-cygwin"
 909     ;;
 910   *-mingw32*)
 911     host_makefile_frag="config/mh-mingw32"
 912     ;;
 913   *-interix*)
 914     host_makefile_frag="config/mh-interix"
 915     ;;
 916   vax-*-ultrix2*)
 917     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 918     tentative_cc=gcc
 919     ;;
 920   *-*-solaris2*)
 921     host_makefile_frag="config/mh-solaris"
 922     ;;
 923   m68k-sun-sunos*)
 924     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 925     # without overflowing the jump tables (-J says to use a 32 bit table)
 926     tentative_cc="cc -J"
 927     ;;
 928   *-hp-hpux*)
 929     tentative_cc="cc -Wp,-H256000"
 930     ;;
 931   *-*-hiux*)
 932     tentative_cc="cc -Wp,-H256000"
 933     ;;
 934   rs6000-*-lynxos*)
 935     # /bin/cc is less than useful for our purposes.  Always use GCC
 936     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 937     host_makefile_frag="config/mh-lynxrs6k"
 938     ;;
 939   powerpc-*-darwin*)
 940     host_makefile_frag="config/mh-ppc-darwin"
 941     ;;
 942   *-*-lynxos*)
 943     # /bin/cc is less than useful for our purposes.  Always use GCC
 944     tentative_cc="/bin/gcc"
 945     ;;
 946   *-*-sysv4*)
 947     host_makefile_frag="config/mh-sysv4"
 948     ;;
 949   # This is placed last to prevent interfering with the cases above.
 950   i[[3456789]]86-*-*)
 951     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 952     host_makefile_frag="config/mh-x86omitfp"
 953     ;;
 954 esac
 955 fi
 956
 957 # If we aren't going to be using gcc, see if we can extract a definition
 958 # of CC from the fragment.
 959 # Actually, use the 'pre-extracted' version above.
 960 if test -z "${CC}" && test "${build}" = "${host}" ; then
 961   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 962   found=
 963   for dir in $PATH; do
 964     test -z "$dir" && dir=.
 965     if test -f $dir/gcc; then
 966       found=yes
 967       break
 968     fi
 969   done
 970   IFS="$save_ifs"
 971   if test -z "${found}" && test -n "${tentative_cc}" ; then
 972     CC=$tentative_cc
 973   fi
 974 fi
 975
 976 if test "${build}" != "${host}" ; then
 977   # If we are doing a Canadian Cross, in which the host and build systems
 978   # are not the same, we set reasonable default values for the tools.
 979
 980   CC=${CC-${host_alias}-gcc}
 981   CFLAGS=${CFLAGS-"-g -O2"}
 982   CXX=${CXX-${host_alias}-c++}
 983   CXXFLAGS=${CXXFLAGS-"-g -O2"}
 984   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
 985   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
 986   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
 987   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
 988   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
 989   BUILD_PREFIX=${build_alias}-
 990   BUILD_PREFIX_1=${build_alias}-
 991
 992 else
 993   # Set reasonable default values for some tools even if not Canadian.
 994   # Of course, these are different reasonable default values, originally
 995   # specified directly in the Makefile.
 996   # We don't export, so that autoconf can do its job.
 997   # Note that all these settings are above the fragment inclusion point
 998   # in Makefile.in, so can still be overridden by fragments.
 999   # This is all going to change when we autoconfiscate...
1000
1001   CC_FOR_BUILD="\$(CC)"
1002   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
1003   BUILD_PREFIX=
1004   BUILD_PREFIX_1=loser-
1005
1006   AC_PROG_CC
1007
1008   # We must set the default linker to the linker used by gcc for the correct
1009   # operation of libtool.  If LD is not defined and we are using gcc, try to
1010   # set the LD default to the ld used by gcc.
1011   if test -z "$LD"; then
1012     if test "$GCC" = yes; then
1013       case $build in
1014       *-*-mingw*)
1015         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1016       *)
1017         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1018       esac
1019       case $gcc_prog_ld in
1020       # Accept absolute paths.
1021       [[\\/]* | [A-Za-z]:[\\/]*)]
1022         LD="$gcc_prog_ld" ;;
1023       esac
1024     fi
1025   fi
1026
1027   CXX=${CXX-"c++"}
1028   CFLAGS=${CFLAGS-"-g"}
1029   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1030 fi
1031
1032 ACX_PROG_GNAT
1033 ACX_PROG_CMP_IGNORE_INITIAL
1034
1035 # Check for GMP and MPFR
1036 gmplibs=
1037 gmpinc=
1038 have_gmp=yes
1039 # Specify a location for mpfr
1040 # check for this first so it ends up on the link line before gmp.
1041 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1042
1043 if test "x$with_mpfr_dir" != x; then
1044   gmpinc="-I$with_mpfr_dir/mpfr"
1045   gmplibs="$with_mpfr_dir/libmpfr.a"
1046 else
1047   gmplibs="-lmpfr"
1048 fi
1049
1050 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1051
1052 if test "x$with_mpfr" != x; then
1053   gmplibs="-L$with_mpfr/lib $gmplibs"
1054   gmpinc="-I$with_mpfr/include"
1055 fi
1056
1057 # Specify a location for gmp
1058 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1059
1060 if test "x$with_gmp_dir" != x; then
1061   gmpinc="$gmpinc -I$with_gmp_dir"
1062   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1063     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1064   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1065     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1066   fi
1067   # One of the later tests will catch the error if neither library is present.
1068 else
1069   gmplibs="$gmplibs -lgmp"
1070 fi
1071
1072 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1073
1074 if test "x$with_gmp" != x; then
1075   gmplibs="-L$with_gmp/lib $gmplibs"
1076   gmpinc="-I$with_gmp/include $gmpinc"
1077 fi
1078
1079 saved_CFLAGS="$CFLAGS"
1080 CFLAGS="$CFLAGS $gmpinc"
1081 # Check GMP actually works
1082 AC_MSG_CHECKING([for correct version of gmp.h])
1083 AC_TRY_COMPILE([#include "gmp.h"],[
1084 #if __GNU_MP_VERSION < 3
1085 choke me
1086 #endif
1087 ], [AC_MSG_RESULT([yes])],
1088   [AC_MSG_RESULT([no]); have_gmp=no])
1089
1090 if test x"$have_gmp" = xyes; then
1091   AC_MSG_CHECKING([for MPFR])
1092
1093   saved_LIBS="$LIBS"
1094   LIBS="$LIBS $gmplibs"
1095   AC_TRY_LINK([#include <gmp.h>
1096 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1097     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1098   LIBS="$saved_LIBS"
1099   CFLAGS="$saved_CFLAGS"
1100 fi
1101
1102 # Flags needed for both GMP and/or MPFR
1103 AC_SUBST(gmplibs)
1104 AC_SUBST(gmpinc)
1105
1106 # By default, C is the only stage 1 language.
1107 stage1_languages=c
1108 AC_SUBST(stage1_languages)
1109
1110 # Figure out what language subdirectories are present.
1111 # Look if the user specified --enable-languages="..."; if not, use
1112 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1113 # go away some day.
1114 # NB:  embedded tabs in this IF block -- do not untabify
1115 if test -d ${srcdir}/gcc; then
1116   if test x"${enable_languages+set}" != xset; then
1117     if test x"${LANGUAGES+set}" = xset; then
1118       enable_languages="${LANGUAGES}"
1119         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1120     else
1121       enable_languages=all
1122     fi
1123   else
1124     if test x"${enable_languages}" = x ||
1125        test x"${enable_languages}" = xyes;
1126        then
1127       echo configure.in: --enable-languages needs at least one language argument 1>&2
1128       exit 1
1129     fi
1130   fi
1131   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1132
1133   # First scan to see if an enabled language requires some other language.
1134   # We assume that a given config-lang.in will list all the language
1135   # front ends it requires, even if some are required indirectly.
1136   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1137     case ${lang_frag} in
1138       ..) ;;
1139       # The odd quoting in the next line works around
1140       # an apparent bug in bash 1.12 on linux.
1141       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1142       *)
1143         # From the config-lang.in, get $language, $lang_requires
1144         language=
1145         lang_requires=
1146         . ${lang_frag}
1147         for other in ${lang_requires} ; do
1148           case ,${enable_languages}, in
1149             *,$other,*) ;;
1150             *,all,*) ;;
1151             *,$language,*)
1152               echo " \`$other' language required by \`$language'; enabling" 1>&2
1153               enable_languages="${enable_languages},${other}"
1154               ;;
1155           esac
1156         done
1157         ;;
1158     esac
1159   done
1160
1161   new_enable_languages=c
1162   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1163   potential_languages=c
1164
1165   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1166     case ${lang_frag} in
1167       ..) ;;
1168       # The odd quoting in the next line works around
1169       # an apparent bug in bash 1.12 on linux.
1170       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1171       *)
1172         # From the config-lang.in, get $language, $target_libs,
1173         # $lang_dirs, $boot_language, and $build_by_default
1174         language=
1175         target_libs=
1176         lang_dirs=
1177         boot_language=
1178         build_by_default=
1179         need_gmp=
1180         . ${lang_frag}
1181         potential_languages="${potential_languages},${language}"
1182         # This is quite sensitive to the ordering of the case statement arms.
1183         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1184           *::*:*)
1185             echo "${lang_frag} doesn't set \$language." 1>&2
1186             exit 1
1187             ;;
1188           *:ada:no:*)
1189             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1190             add_this_lang=no
1191             ;;
1192           *,${language},*:*:*:*)
1193             # Language was explicitly selected; include it.
1194             add_this_lang=yes
1195             ;;
1196           *,all,*:*:*:no)
1197             # 'all' was selected, but this is not a default language
1198             # so do not include it.
1199             add_this_lang=no
1200             ;;
1201           *,all,*:*:*:*)
1202             # 'all' was selected and this is a default language; include it.
1203             add_this_lang=yes
1204             ;;
1205           *)
1206             add_this_lang=no
1207             ;;
1208         esac
1209
1210         # Disable languages that need GMP if it isn't available.
1211         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1212           *,${language},*:no:yes)
1213             # Specifically requested language; tell them.
1214             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1215             ;;
1216           *:no:yes)
1217             # Silently disable.
1218             add_this_lang=no
1219             ;;
1220         esac
1221
1222         case $add_this_lang in
1223           no)
1224             # Remove language-dependent dirs.
1225             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1226             ;;
1227           *)
1228             new_enable_languages="$new_enable_languages,$language"
1229             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1230             case ${boot_language} in
1231               yes)
1232                 # Add to (comma-separated) list of stage 1 languages.
1233                 stage1_languages="${stage1_languages},${language}"
1234                 ;;
1235             esac
1236             ;;
1237         esac
1238         ;;
1239     esac
1240   done
1241
1242   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1243   if test "x$missing_languages" != x; then
1244     AC_MSG_ERROR([
1245 The following requested languages were not found: ${missing_languages}
1246 The available languages are: ${potential_languages}])
1247   fi
1248
1249   if test "x$new_enable_languages" != "x$enable_languages"; then
1250     echo The following languages will be built: ${new_enable_languages}
1251   fi
1252   enable_languages="$new_enable_languages"
1253   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1254 fi
1255
1256 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1257 # $build_configdirs and $target_configdirs.
1258 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1259
1260 notsupp=""
1261 for dir in . $skipdirs $noconfigdirs ; do
1262   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1263   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1264     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1265     if test -r $srcdir/$dirname/configure ; then
1266       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1267         true
1268       else
1269         notsupp="$notsupp $dir"
1270       fi
1271     fi
1272   fi
1273   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1274     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1275     if test -r $srcdir/$dirname/configure ; then
1276       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1277         true
1278       else
1279         notsupp="$notsupp $dir"
1280       fi
1281     fi
1282   fi
1283   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1284     target_configdirs=`echo " ${target_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 done
1294
1295 # Sometimes the tools are distributed with libiberty but with no other
1296 # libraries.  In that case, we don't want to build target-libiberty.
1297 if test -n "${target_configdirs}" ; then
1298   others=
1299   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1300     if test "$i" != "libiberty" ; then
1301       if test -r $srcdir/$i/configure ; then
1302         others=yes;
1303         break;
1304       fi
1305     fi
1306   done
1307   if test -z "${others}" ; then
1308     target_configdirs=
1309   fi
1310 fi
1311
1312 # Quietly strip out all directories which aren't configurable in this tree.
1313 # This relies on all configurable subdirectories being autoconfiscated, which
1314 # is now the case.
1315 build_configdirs_all="$build_configdirs"
1316 build_configdirs=
1317 for i in ${build_configdirs_all} ; do
1318   j=`echo $i | sed -e s/build-//g`
1319   if test -f ${srcdir}/$j/configure ; then
1320     build_configdirs="${build_configdirs} $i"
1321   fi
1322 done
1323
1324 configdirs_all="$configdirs"
1325 configdirs=
1326 for i in ${configdirs_all} ; do
1327   if test -f ${srcdir}/$i/configure ; then
1328     configdirs="${configdirs} $i"
1329   fi
1330 done
1331
1332 target_configdirs_all="$target_configdirs"
1333 target_configdirs=
1334 for i in ${target_configdirs_all} ; do
1335   j=`echo $i | sed -e s/target-//g`
1336   if test -f ${srcdir}/$j/configure ; then
1337     target_configdirs="${target_configdirs} $i"
1338   fi
1339 done
1340
1341 # Produce a warning message for the subdirs we can't configure.
1342 # This isn't especially interesting in the Cygnus tree, but in the individual
1343 # FSF releases, it's important to let people know when their machine isn't
1344 # supported by the one or two programs in a package.
1345
1346 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1347   # If $appdirs is non-empty, at least one of those directories must still
1348   # be configured, or we error out.  (E.g., if the gas release supports a
1349   # specified target in some subdirs but not the gas subdir, we shouldn't
1350   # pretend that all is well.)
1351   if test -n "$appdirs" ; then
1352     for dir in $appdirs ; do
1353       if test -r $dir/Makefile.in ; then
1354         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1355           appdirs=""
1356           break
1357         fi
1358         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1359           appdirs=""
1360           break
1361         fi
1362       fi
1363     done
1364     if test -n "$appdirs" ; then
1365       echo "*** This configuration is not supported by this package." 1>&2
1366       exit 1
1367     fi
1368   fi
1369   # Okay, some application will build, or we don't care to check.  Still
1370   # notify of subdirs not getting built.
1371   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1372   echo "    ${notsupp}" 1>&2
1373   echo "    (Any other directories should still work fine.)" 1>&2
1374 fi
1375
1376 case "$host" in
1377   *msdosdjgpp*)
1378     enable_gdbtk=no ;;
1379 esac
1380
1381 copy_dirs=
1382
1383 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1384 # the named directory are copied to $(tooldir)/sys-include.
1385 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1386   if test x${is_cross_compiler} = xno ; then
1387     echo 1>&2 '***' --with-headers is only supported when cross compiling
1388     exit 1
1389   fi
1390   if test x"${with_headers}" != xyes ; then
1391     case "${exec_prefixoption}" in
1392     "") x=${prefix} ;;
1393     *) x=${exec_prefix} ;;
1394     esac
1395     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1396   fi
1397 fi
1398
1399 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1400 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1401 # are permitted.
1402 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1403   if test x${is_cross_compiler} = xno ; then
1404     echo 1>&2 '***' --with-libs is only supported when cross compiling
1405     exit 1
1406   fi
1407   if test x"${with_libs}" != xyes ; then
1408     # Copy the libraries in reverse order, so that files in the first named
1409     # library override files in subsequent libraries.
1410     case "${exec_prefixoption}" in
1411     "") x=${prefix} ;;
1412     *) x=${exec_prefix} ;;
1413     esac
1414     for l in ${with_libs}; do
1415       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1416     done
1417   fi
1418 fi
1419
1420 # Handle ${copy_dirs}
1421 set fnord ${copy_dirs}
1422 shift
1423 while test $# != 0 ; do
1424   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1425     :
1426   else
1427     echo Copying $1 to $2
1428
1429     # Use the install script to create the directory and all required
1430     # parent directories.
1431     if test -d $2 ; then
1432       :
1433     else
1434       echo >config.temp
1435       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1436     fi
1437
1438     # Copy the directory, assuming we have tar.
1439     # FIXME: Should we use B in the second tar?  Not all systems support it.
1440     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1441
1442     # It is the responsibility of the user to correctly adjust all
1443     # symlinks.  If somebody can figure out how to handle them correctly
1444     # here, feel free to add the code.
1445
1446     echo $1 > $2/COPIED
1447   fi
1448   shift; shift
1449 done
1450
1451 extra_arflags_for_target=
1452 extra_nmflags_for_target=
1453 extra_ranlibflags_for_target=
1454 target_makefile_frag=/dev/null
1455 case "${target}" in
1456   *-*-netware*)
1457     target_makefile_frag="config/mt-netware"
1458     ;;
1459   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1460     target_makefile_frag="config/mt-gnu"
1461     ;;
1462   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1463     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1464     # commands to handle both 32-bit and 64-bit objects.  These flags are
1465     # harmless if we're using GNU nm or ar.
1466     extra_arflags_for_target=" -X32_64"
1467     extra_nmflags_for_target=" -B -X32_64"
1468     ;;
1469   *-*-darwin*)
1470     # ranlib from Darwin requires the -c flag to look at common symbols.
1471     extra_ranlibflags_for_target=" -c"
1472     ;;
1473   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1474     target_makefile_frag="config/mt-wince"
1475     ;;
1476 esac
1477
1478 alphaieee_frag=/dev/null
1479 case $target in
1480   alpha*-*-*)
1481     # This just makes sure to use the -mieee option to build target libs.
1482     # This should probably be set individually by each library.
1483     alphaieee_frag="config/mt-alphaieee"
1484     ;;
1485 esac
1486
1487 # If --enable-target-optspace always use -Os instead of -O2 to build
1488 # the target libraries, similarly if it is not specified, use -Os
1489 # on selected platforms.
1490 ospace_frag=/dev/null
1491 case "${enable_target_optspace}:${target}" in
1492   yes:*)
1493     ospace_frag="config/mt-ospace"
1494     ;;
1495   :d30v-*)
1496     ospace_frag="config/mt-d30v"
1497     ;;
1498   :m32r-* | :d10v-* | :fr30-*)
1499     ospace_frag="config/mt-ospace"
1500     ;;
1501   no:* | :*)
1502     ;;
1503   *)
1504     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1505     ;;
1506 esac
1507
1508 # Set with_gnu_as and with_gnu_ld as appropriate.
1509 #
1510 # This is done by determining whether or not the appropriate directory
1511 # is available, and by checking whether or not specific configurations
1512 # have requested that this magic not happen.
1513 #
1514 # The command line options always override the explicit settings in
1515 # configure.in, and the settings in configure.in override this magic.
1516 #
1517 # If the default for a toolchain is to use GNU as and ld, and you don't
1518 # want to do that, then you should use the --without-gnu-as and
1519 # --without-gnu-ld options for the configure script.
1520
1521 if test x${use_gnu_as} = x &&
1522    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1523   with_gnu_as=yes
1524   extra_host_args="$extra_host_args --with-gnu-as"
1525 fi
1526
1527 if test x${use_gnu_ld} = x &&
1528    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1529   with_gnu_ld=yes
1530   extra_host_args="$extra_host_args --with-gnu-ld"
1531 fi
1532
1533 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1534 # can detect this case.
1535
1536 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1537   with_newlib=yes
1538   extra_host_args="$extra_host_args --with-newlib"
1539 fi
1540
1541 # Default to using --with-stabs for certain targets.
1542 if test x${with_stabs} = x ; then
1543   case "${target}" in
1544   mips*-*-irix[[56]]*)
1545     ;;
1546   mips*-*-* | alpha*-*-osf*)
1547     with_stabs=yes;
1548     extra_host_args="${extra_host_args} --with-stabs"
1549     ;;
1550   esac
1551 fi
1552
1553 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1554 # them automatically.
1555 case "${host}" in
1556   hppa*64*-*-hpux11*)
1557     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1558     ;;
1559 esac
1560
1561 # Some systems (e.g., one of the i386-aix systems the gas testers are
1562 # using) don't handle "\$" correctly, so don't use it here.
1563 tooldir='${exec_prefix}'/${target_alias}
1564 build_tooldir=${tooldir}
1565
1566 # Generate default definitions for YACC, M4, LEX and other programs that run
1567 # on the build machine.  These are used if the Makefile can't locate these
1568 # programs in objdir.
1569 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1570 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1571 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1572 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1573 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1574 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1575 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1576
1577 # Create a .gdbinit file which runs the one in srcdir
1578 # and tells GDB to look there for source files.
1579
1580 if test -r ${srcdir}/.gdbinit ; then
1581   case ${srcdir} in
1582     .) ;;
1583     *) cat > ./.gdbinit <<EOF
1584 # ${NO_EDIT}
1585 dir ${srcdir}
1586 dir .
1587 source ${srcdir}/.gdbinit
1588 EOF
1589     ;;
1590   esac
1591 fi
1592
1593 # Make sure that the compiler is able to generate an executable.  If it
1594 # can't, we are probably in trouble.  We don't care whether we can run the
1595 # executable--we might be using a cross compiler--we only care whether it
1596 # can be created.  At this point the main configure script has set CC.
1597 we_are_ok=no
1598 echo "int main () { return 0; }" > conftest.c
1599 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1600 if test $? = 0 ; then
1601   if test -s conftest || test -s conftest.exe ; then
1602     we_are_ok=yes
1603   fi
1604 fi
1605 case $we_are_ok in
1606   no)
1607     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1608     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1609     rm -f conftest*
1610     exit 1
1611     ;;
1612 esac
1613 rm -f conftest*
1614
1615 # The Solaris /usr/ucb/cc compiler does not appear to work.
1616 case "${host}" in
1617   sparc-sun-solaris2*)
1618       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1619       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1620           could_use=
1621           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1622           if test -d /opt/cygnus/bin ; then
1623               if test "$could_use" = "" ; then
1624                   could_use="/opt/cygnus/bin"
1625               else
1626                   could_use="$could_use or /opt/cygnus/bin"
1627               fi
1628           fi
1629         if test "$could_use" = "" ; then
1630             echo "Warning: compilation may fail because you're using"
1631             echo "/usr/ucb/cc.  You should change your PATH or CC "
1632             echo "variable and rerun configure."
1633         else
1634             echo "Warning: compilation may fail because you're using"
1635             echo "/usr/ucb/cc, when you should use the C compiler from"
1636             echo "$could_use.  You should change your"
1637             echo "PATH or CC variable and rerun configure."
1638         fi
1639       fi
1640   ;;
1641 esac
1642
1643 # If no --enable-shared nor --disable-shared is specified, we set up
1644 # LD_LIBRARY_PATH when we build for gcc.
1645 case $enable_shared in
1646 "")
1647   if test -d ${srcdir}/gcc; then
1648     set_lib_path=yes
1649   else
1650     set_lib_path=no
1651   fi
1652   ;;
1653 *)
1654   set_lib_path=$enable_shared
1655   ;;
1656 esac
1657
1658 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1659 # binutils tools will find libbfd.so.
1660 case "${set_lib_path}" in
1661   no) SET_LIB_PATH= ;;
1662   *) SET_LIB_PATH="\$(REALLY_SET_LIB_PATH)" ;;
1663 esac
1664
1665 case "${host}" in
1666   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1667   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1668 esac
1669
1670 # Record target_configdirs and the configure arguments for target and
1671 # build configuration in Makefile.
1672 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1673 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1674
1675 # Determine whether gdb needs tk/tcl or not.
1676 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1677 # and in that case we want gdb to be built without tk.  Ugh!
1678 # In fact I believe gdb is the *only* package directly dependent on tk,
1679 # so we should be able to put the 'maybe's in unconditionally and
1680 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1681 # 100% sure that that's safe though.
1682
1683 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1684 case "$enable_gdbtk" in
1685   no)
1686     GDB_TK="" ;;
1687   yes)
1688     GDB_TK="${gdb_tk}" ;;
1689   *)
1690     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1691     # distro.  Eventually someone will fix this and move Insight, nee
1692     # gdbtk to a separate directory.
1693     if test -d ${srcdir}/gdb/gdbtk ; then
1694       GDB_TK="${gdb_tk}"
1695     else
1696       GDB_TK=""
1697     fi
1698     ;;
1699 esac
1700
1701 # Strip out unwanted targets.
1702
1703 # While at that, we remove Makefiles if we were started for recursive
1704 # configuration, so that the top-level Makefile reconfigures them,
1705 # like we used to do when configure itself was recursive.
1706
1707 # Loop over modules.  $extrasub must be used with care, limiting as
1708 # much as possible the usage of range addresses.  That's because autoconf
1709 # splits the sed script to overcome limits in the number of commands,
1710 # and relying on carefully-timed sed passes may turn out to be very hard
1711 # to maintain later.  In this particular case, you just have to be careful
1712 # not to nest @if/@endif pairs, because configure will not warn you at all.
1713
1714 AC_ARG_ENABLE([bootstrap],
1715 [  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
1716 enable_bootstrap=default)
1717
1718 # Issue errors and warnings for invalid/strange bootstrap combinations.
1719 case "$configdirs" in
1720   *gcc*) have_compiler=yes ;;
1721   *) have_compiler=no ;;
1722 esac
1723
1724 case "$have_compiler:$host:$target:$enable_bootstrap" in
1725   *:*:*:no) ;;
1726
1727   # Default behavior.  (We'll) enable bootstrap if we have a compiler
1728   # and we are in a native configuration.
1729   yes:$build:$build:default)
1730     # This will become 'yes'
1731     enable_bootstrap=no ;;
1732
1733   *:*:*:default)
1734     enable_bootstrap=no ;;
1735
1736   # We have a compiler and we are in a native configuration, bootstrap is ok
1737   yes:$build:$build:yes | yes:$build:$build:lean)
1738     ;;
1739
1740   # Other configurations, but we have a compiler.  Assume the user knows
1741   # what he's doing.
1742   yes:*:*:yes | yes:*:*:lean)
1743     AC_MSG_WARN([trying to bootstrap a cross compiler])
1744     ;;
1745
1746   # No compiler: if they passed --enable-bootstrap explicitly, fail
1747   no:*:*:yes | no:*:*:lean)
1748     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1749
1750   # Fail if wrong command line
1751   *)
1752     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1753     ;;
1754 esac
1755
1756 # Adjust the toplevel makefile according to whether bootstrap was selected.
1757 case "$enable_bootstrap" in
1758   yes)
1759     bootstrap_lean='#'
1760     default_target=bootstrap
1761     bootstrap_suffix=bootstrap ;;
1762   lean)
1763     bootstrap_lean=''
1764     default_target=bootstrap
1765     bootstrap_suffix=bootstrap ;;
1766   no)
1767     default_target=all
1768     bootstrap_suffix=no-bootstrap ;;
1769 esac
1770 AC_SUBST(bootstrap_lean)
1771 AC_SUBST(default_target)
1772
1773 for module in ${build_configdirs} ; do
1774   if test -z "${no_recursion}" \
1775      && test -f ${build_subdir}/${module}/Makefile; then
1776     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1777     rm -f ${build_subdir}/${module}/Makefile
1778   fi
1779   extrasub="$extrasub
1780 /^@if build-$module\$/d
1781 /^@endif build-$module\$/d
1782 /^@if build-$module-$bootstrap_suffix\$/d
1783 /^@endif build-$module-$bootstrap_suffix\$/d"
1784 done
1785 for module in ${configdirs} ; do
1786   if test -z "${no_recursion}" \
1787      && test -f ${module}/Makefile; then
1788     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1789     rm -f ${module}/Makefile
1790   fi
1791   extrasub="$extrasub
1792 /^@if $module\$/d
1793 /^@endif $module\$/d
1794 /^@if $module-$bootstrap_suffix\$/d
1795 /^@endif $module-$bootstrap_suffix\$/d"
1796 done
1797 for module in ${target_configdirs} ; do
1798   if test -z "${no_recursion}" \
1799      && test -f ${target_subdir}/${module}/Makefile; then
1800     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1801     rm -f ${target_subdir}/${module}/Makefile
1802   fi
1803   extrasub="$extrasub
1804 /^@if target-$module\$/d
1805 /^@endif target-$module\$/d
1806 /^@if target-$module-$bootstrap_suffix\$/d
1807 /^@endif target-$module-$bootstrap_suffix\$/d"
1808 done
1809
1810 extrasub="$extrasub
1811 /^@if /,/^@endif /d"
1812
1813 # Create the serialization dependencies.  This uses a temporary file.
1814
1815 AC_ARG_ENABLE([serial-configure],
1816 [  --enable-serial-[{host,target,build}-]configure
1817                           Force sequential configuration of
1818                           sub-packages for the host, target or build
1819                           machine, or all sub-packages])
1820
1821 case ${enable_serial_configure} in
1822   yes)
1823     enable_serial_build_configure=yes
1824     enable_serial_host_configure=yes
1825     enable_serial_target_configure=yes
1826     ;;
1827 esac
1828
1829 # These force 'configure's to be done one at a time, to avoid problems
1830 # with contention over a shared config.cache.
1831 rm -f serdep.tmp
1832 echo '# serdep.tmp' > serdep.tmp
1833 olditem=
1834 test "x${enable_serial_build_configure}" = xyes &&
1835 for item in ${build_configdirs} ; do
1836   case ${olditem} in
1837     "") ;;
1838     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1839   esac
1840   olditem=${item}
1841 done
1842 olditem=
1843 test "x${enable_serial_host_configure}" = xyes &&
1844 for item in ${configdirs} ; do
1845   case ${olditem} in
1846     "") ;;
1847     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1848   esac
1849   olditem=${item}
1850 done
1851 olditem=
1852 test "x${enable_serial_target_configure}" = xyes &&
1853 for item in ${target_configdirs} ; do
1854   case ${olditem} in
1855     "") ;;
1856     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1857   esac
1858   olditem=${item}
1859 done
1860 serialization_dependencies=serdep.tmp
1861 AC_SUBST_FILE(serialization_dependencies)
1862
1863 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1864 # target and nonopt.  These are the ones we might not want to pass
1865 # down to subconfigures.  Also strip program-prefix, program-suffix,
1866 # and program-transform-name, so that we can pass down a consistent
1867 # program-transform-name.  If autoconf has put single quotes around
1868 # any of these arguments (because they contain shell metacharacters)
1869 # then this will fail; in practice this only happens for
1870 # --program-transform-name, so be sure to override --program-transform-name
1871 # at the end of the argument list.
1872 # These will be expanded by make, so quote '$'.
1873 cat <<\EOF_SED > conftestsed
1874 s/ --no[[^ ]]*/ /g
1875 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1876 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1877 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1878 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1879 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1880 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1881 s/ -cache-file[[= ]][[^ ]]*//g
1882 s/ -srcdir[[= ]][[^ ]]*//g
1883 s/ -host[[= ]][[^ ]]*//g
1884 s/ -build[[= ]][[^ ]]*//g
1885 s/ -target[[= ]][[^ ]]*//g
1886 s/ -program-prefix[[= ]][[^ ]]*//g
1887 s/ -program-suffix[[= ]][[^ ]]*//g
1888 s/ -program-transform-name[[= ]][[^ ]]*//g
1889 s/ [[^' -][^ ]*] / /
1890 s/^ *//;s/ *$//
1891 s,\$,$$,g
1892 EOF_SED
1893 sed -f conftestsed <<EOF_SED > conftestsed.out
1894  ${ac_configure_args}
1895 EOF_SED
1896 baseargs=`cat conftestsed.out`
1897 rm -f conftestsed conftestsed.out
1898
1899 # Add in --program-transform-name, after --program-prefix and
1900 # --program-suffix have been applied to it.  Autoconf has already
1901 # doubled dollar signs and backslashes in program_transform_name; we want
1902 # the backslashes un-doubled, and then the entire thing wrapped in single
1903 # quotes, because this will be expanded first by make and then by the shell.
1904 # Also, because we want to override the logic in subdir configure scripts to
1905 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1906 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1907 ${program_transform_name}
1908 EOF_SED
1909 gcc_transform_name=`cat conftestsed.out`
1910 rm -f conftestsed.out
1911 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1912
1913 # For the build-side libraries, we just need to pretend we're native,
1914 # and not use the same cache file.  Multilibs are neither needed nor
1915 # desired.
1916 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
1917
1918 # For host modules, accept cache file option, or specification as blank.
1919 case "${cache_file}" in
1920 "") # empty
1921   cache_file_option="" ;;
1922 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1923   cache_file_option="--cache-file=${cache_file}" ;;
1924 *) # relative path
1925   cache_file_option="--cache-file=../${cache_file}" ;;
1926 esac
1927
1928 # Host dirs don't like to share a cache file either, horribly enough.
1929 # This seems to be due to autoconf 2.5x stupidity.
1930 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1931
1932 target_configargs=${baseargs}
1933
1934 # Passing a --with-cross-host argument lets the target libraries know
1935 # whether they are being built with a cross-compiler or being built
1936 # native.  However, it would be better to use other mechanisms to make the
1937 # sorts of decisions they want to make on this basis.  Please consider
1938 # this option to be deprecated.  FIXME.
1939 if test x${is_cross_compiler} = xyes ; then
1940   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1941 fi
1942
1943 # Default to --enable-multilib.
1944 if test x${enable_multilib} = x ; then
1945   target_configargs="--enable-multilib ${target_configargs}"
1946 fi
1947
1948 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1949 # changed from the earlier setting of with_newlib.
1950 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1951   target_configargs="--with-newlib ${target_configargs}"
1952 fi
1953
1954 # Different target subdirs use different values of certain variables
1955 # (notably CXX).  Worse, multilibs use *lots* of different values.
1956 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1957 # it doesn't automatically accept command-line overrides of them.
1958 # This means it's not safe for target subdirs to share a cache file,
1959 # which is disgusting, but there you have it.  Hopefully this can be
1960 # fixed in future.  It's still worthwhile to use a cache file for each
1961 # directory.  I think.
1962
1963 # Pass the appropriate --host, --build, and --cache-file arguments.
1964 target_configargs="--cache-file=./config.cache --host=${target_alias} --build=${build_alias} ${target_configargs}"
1965
1966 # provide a proper gxx_include_dir.
1967 TL_AC_GXX_INCLUDE_DIR
1968
1969 FLAGS_FOR_TARGET=
1970 case " $target_configdirs " in
1971  *" newlib "*)
1972   case " $target_configargs " in
1973   *" --with-newlib "*)
1974    case "$target" in
1975    *-cygwin*)
1976      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' ;;
1977    esac
1978
1979    # If we're not building GCC, don't discard standard headers.
1980    if test -d ${srcdir}/gcc; then
1981      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1982
1983      if test "${build}" != "${host}"; then
1984        # On Canadian crosses, CC_FOR_TARGET will have already been set
1985        # by `configure', so we won't have an opportunity to add -Bgcc/
1986        # to it.  This is right: we don't want to search that directory
1987        # for binaries, but we want the header files in there, so add
1988        # them explicitly.
1989        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
1990
1991        # Someone might think of using the pre-installed headers on
1992        # Canadian crosses, in case the installed compiler is not fully
1993        # compatible with the compiler being built.  In this case, it
1994        # would be better to flag an error than risking having
1995        # incompatible object files being constructed.  We can't
1996        # guarantee that an error will be flagged, but let's hope the
1997        # compiler will do it, when presented with incompatible header
1998        # files.
1999      fi
2000    fi
2001
2002    case "${target}-${is_cross_compiler}" in
2003    i[[3456789]]86-*-linux*-no)
2004       # Here host == target, so we don't need to build gcc,
2005       # so we don't want to discard standard headers.
2006       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2007       ;;
2008    *)
2009       # If we're building newlib, use its generic headers last, but search
2010       # for any libc-related directories first (so make it the last -B
2011       # switch).
2012       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2013       ;;
2014    esac
2015    ;;
2016   esac
2017   ;;
2018 esac
2019
2020 # Allow the user to override the flags for
2021 # our build compiler if desired.
2022 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2023
2024 # On Canadian crosses, we'll be searching the right directories for
2025 # the previously-installed cross compiler, so don't bother to add
2026 # flags for directories within the install tree of the compiler
2027 # being built; programs in there won't even run.
2028 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2029   # Search for pre-installed headers if nothing else fits.
2030   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2031 fi
2032
2033 if test "x${use_gnu_ld}" = x &&
2034    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2035   # Arrange for us to find uninstalled linker scripts.
2036   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
2037 fi
2038
2039 if test "x${CC_FOR_TARGET+set}" = xset; then
2040   :
2041 elif test -d ${srcdir}/gcc; then
2042   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
2043 elif test "$host" = "$target"; then
2044   CC_FOR_TARGET='$(CC)'
2045 else
2046   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
2047 fi
2048 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2049
2050 if test "x${GCJ_FOR_TARGET+set}" = xset; then
2051   :
2052 elif test -d ${srcdir}/gcc; then
2053   GCJ_FOR_TARGET='$$r/gcc/gcj -B$$r/gcc/'
2054 elif test "$host" = "$target"; then
2055   GCJ_FOR_TARGET='gcj'
2056 else
2057   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
2058 fi
2059 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2060
2061 if test "x${GFORTRAN_FOR_TARGET+set}" = xset; then
2062   :
2063 elif test -d ${srcdir}/gcc; then
2064   GFORTRAN_FOR_TARGET='$$r/gcc/gfortran -B$$r/gcc/'
2065 elif test "$host" = "$target"; then
2066   GFORTRAN_FOR_TARGET='gfortran'
2067 else
2068   GFORTRAN_FOR_TARGET=`echo gfortran | sed "${program_transform_name}"`
2069 fi
2070 case $GFORTRAN_FOR_TARGET in
2071 *' $(FLAGS_FOR_TARGET)') ;;
2072 *) GFORTRAN_FOR_TARGET=$GFORTRAN_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
2073 esac
2074
2075 # Don't use libstdc++-v3's flags to configure/build itself.
2076 libstdcxx_flags='`test ! -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags || $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2077 raw_libstdcxx_flags='-L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2078
2079 if test "x${CXX_FOR_TARGET+set}" = xset; then
2080   if test "x${RAW_CXX_FOR_TARGET+set}" != xset; then
2081     RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2082   fi
2083 elif test -d ${srcdir}/gcc; then
2084   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
2085   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
2086   # default whereas gcc does not.
2087   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
2088   # all other cases.
2089   CXX_FOR_TARGET='$$r/gcc/g++ -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
2090   RAW_CXX_FOR_TARGET='$$r/gcc/xgcc -shared-libgcc -B$$r/gcc/ -nostdinc++ '$raw_libstdcxx_flags
2091 elif test "$host" = "$target"; then
2092   CXX_FOR_TARGET='$(CXX)'
2093   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2094 else
2095   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
2096   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2097 fi
2098 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2099 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2100
2101 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2102 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2103
2104 # We want to defer the evaluation of `cmd`s and shell variables in
2105 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
2106 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
2107 # quotes, but we still have to duplicate `$'s so that shell variables
2108 # can be expanded by the nested make as shell variables, not as make
2109 # macros.
2110 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2111 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2112
2113 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
2114 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
2115 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
2116 GFORTRAN_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GFORTRAN_FOR_TARGET}"
2117 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
2118 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
2119 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
2120 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
2121
2122 # Makefile fragments.
2123 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2124 do
2125   eval fragval=\$$frag
2126   if test $fragval != /dev/null; then
2127     eval $frag=${srcdir}/$fragval
2128   fi
2129 done
2130 AC_SUBST_FILE(host_makefile_frag)
2131 AC_SUBST_FILE(target_makefile_frag)
2132 AC_SUBST_FILE(alphaieee_frag)
2133 AC_SUBST_FILE(ospace_frag)
2134
2135 # Miscellanea: directories, flags, etc.
2136 AC_SUBST(SET_LIB_PATH)
2137 AC_SUBST(RPATH_ENVVAR)
2138 AC_SUBST(BUILD_PREFIX)
2139 AC_SUBST(BUILD_PREFIX_1)
2140 AC_SUBST(tooldir)
2141 AC_SUBST(build_tooldir)
2142 AC_SUBST(GDB_TK)
2143
2144 # Build module lists & subconfigure args.
2145 AC_SUBST(build_configargs)
2146 AC_SUBST(build_configdirs)
2147
2148 # Host module lists & subconfigure args.
2149 AC_SUBST(host_configargs)
2150 AC_SUBST(configdirs)
2151
2152 # Target module lists & subconfigure args.
2153 AC_SUBST(target_configargs)
2154 AC_SUBST(target_configdirs)
2155
2156 # Build tools.
2157 AC_SUBST(CC_FOR_BUILD)
2158 AC_SUBST(config_shell)
2159
2160 # Host tools.
2161 NCN_STRICT_CHECK_TOOL(AR, ar)
2162 NCN_STRICT_CHECK_TOOL(AS, as)
2163 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2164 NCN_STRICT_CHECK_TOOL(LD, ld)
2165 NCN_STRICT_CHECK_TOOL(NM, nm)
2166 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2167 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2168 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2169 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2170 AC_SUBST(CC)
2171 AC_SUBST(CXX)
2172 AC_SUBST(CFLAGS)
2173 AC_SUBST(CFLAGS_FOR_BUILD)
2174 AC_SUBST(CXXFLAGS)
2175
2176 # Target tools.
2177 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AR_FOR_TARGET, ar)
2178 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AS_FOR_TARGET, as)
2179 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_DLLTOOL_FOR_TARGET, dlltool)
2180 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_LD_FOR_TARGET, ld)
2181 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_NM_FOR_TARGET, nm)
2182 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_RANLIB_FOR_TARGET, ranlib, :)
2183 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_WINDRES_FOR_TARGET, windres)
2184
2185 AC_SUBST(GCC_FOR_TARGET)
2186 AC_SUBST(FLAGS_FOR_TARGET)
2187 AC_SUBST(CC_FOR_TARGET)
2188 AC_SUBST(GCJ_FOR_TARGET)
2189 AC_SUBST(GFORTRAN_FOR_TARGET)
2190 AC_SUBST(CXX_FOR_TARGET)
2191 AC_SUBST(RAW_CXX_FOR_TARGET)
2192 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2193 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2194
2195 # Fix up target tools.
2196 if test "x${build}" = "x${host}" ; then
2197   # In this case, the newly built tools can and should be used,
2198   # so we override the results of the autoconf tests.
2199   # This should really only happen when the tools are actually being built,
2200   # but that's a further refinement.  The new build scheme, where
2201   # tools are built into a structure paralleling where they're installed,
2202   # should also eliminate all of this cleanly.
2203   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2204   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2205   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2206   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2207   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2208   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2209   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2210 else
2211   # Just use the ones we found.
2212   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2213   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2214   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2215   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2216   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2217   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2218   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2219 fi
2220 AC_SUBST(AR_FOR_TARGET)
2221 AC_SUBST(AS_FOR_TARGET)
2222 AC_SUBST(DLLTOOL_FOR_TARGET)
2223 AC_SUBST(LD_FOR_TARGET)
2224 AC_SUBST(NM_FOR_TARGET)
2225 AC_SUBST(RANLIB_FOR_TARGET)
2226 AC_SUBST(WINDRES_FOR_TARGET)
2227
2228 # Certain tools may need extra flags.
2229 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2230 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2231 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2232
2233 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2234 AC_ARG_ENABLE(maintainer-mode,
2235 [  --enable-maintainer-mode enable make rules and dependencies not useful
2236                           (and sometimes confusing) to the casual installer],
2237       USE_MAINTAINER_MODE=$enableval,
2238       USE_MAINTAINER_MODE=no)
2239 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2240 AC_SUBST(MAINTAINER_MODE_TRUE)
2241 AC_SUBST(MAINTAINER_MODE_FALSE)
2242 if test "$USE_MAINTAINER_MODE" = yes; then
2243   MAINTAINER_MODE_TRUE=
2244   MAINTAINER_MODE_FALSE='#'
2245 else
2246   MAINTAINER_MODE_TRUE='#'
2247   MAINTAINER_MODE_FALSE=
2248 fi
2249 MAINT=$MAINTAINER_MODE_TRUE
2250 AC_SUBST(MAINT)dnl
2251
2252 # ---------------------
2253 # GCC bootstrap support
2254 # ---------------------
2255
2256 # Stage specific cflags for build.
2257 stage1_cflags="-g"
2258 case $build in
2259   vax-*-*)
2260     case ${GCC} in
2261       yes) stage1_cflags="-g -Wa,-J" ;;
2262       *) stage1_cflags="-g -J" ;;
2263     esac ;;
2264   powerpc-*-darwin*)
2265     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2266     # sources; use -no-cpp-precomp to get to GNU cpp.
2267     # Apple's GCC has bugs in designated initializer handling, so disable
2268     # that too.
2269     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2270     ;;
2271 esac
2272 AC_SUBST(stage1_cflags)
2273
2274 # It makes debugging easier if we create as symlinks the stage directories
2275 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
2276 # possible, however, we can resort to mv.
2277 AC_CACHE_CHECK([if symbolic links between directories work],
2278 [gcc_cv_prog_ln_s_dir],
2279 [if test "${LN_S}" = "ln -s" \
2280    && mkdir confdir.s1 \
2281    && ln -s confdir.s1 confdir.s2 \
2282    && echo timestamp1 > confdir.s1/conftest.1 \
2283    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2284    && echo timestamp2 > confdir.s2/conftest.2 \
2285    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2286    && rm -f confdir.s2; then
2287   gcc_cv_prog_ln_s_dir=yes
2288 else
2289   gcc_cv_prog_ln_s_dir=yes
2290 fi
2291 rm -rf confdir.s1 confdir.s2])
2292
2293 case ${gcc_cv_prog_ln_s_dir} in
2294   yes)
2295     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2296     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2297   *)
2298     CREATE_LINK_TO_DIR='mv $$1 $$2'
2299     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2300 esac
2301 AC_SUBST(CREATE_LINK_TO_DIR)
2302 AC_SUBST(UNDO_LINK_TO_DIR)
2303
2304 # Enable -Werror in bootstrap stage2 and later.
2305 # Change the default to "no" on release branches.
2306 AC_ARG_ENABLE(werror,
2307 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2308 [enable_werror=yes])
2309 case ${enable_werror} in
2310   yes) stage2_werror_flag="--enable-werror-always" ;;
2311   *) stage2_werror_flag="" ;;
2312 esac
2313 AC_SUBST(stage2_werror_flag)
2314
2315 # If gcc is built natively with shared library enabled, set
2316 # $RPATH_ENVVAR to make sure the newly built gcc shared librares are
2317 # used.
2318 SET_GCC_LIB_PATH=
2319 if test -d ${srcdir}/gcc && test x${is_cross_compiler} = xno; then
2320   case "${set_lib_path}" in
2321     no) ;;
2322     *)
2323       eval "d=\$$RPATH_ENVVAR"
2324       if test x"$d" != x; then
2325         d="$pwd/gcc:$d"
2326       else
2327         d="$pwd/gcc"
2328     fi
2329     SET_GCC_LIB_PATH="\$(RPATH_ENVVAR)=$d; export \$(RPATH_ENVVAR);"
2330     ;;
2331   esac
2332 fi
2333 AC_SUBST(SET_GCC_LIB_PATH)
2334
2335 AC_OUTPUT(Makefile)