configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   2 #   1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   3 #
   4 # This file is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 ##############################################################################
  19 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  20
  21 sinclude(config/acx.m4)
  22
  23 AC_INIT(move-if-change)
  24 AC_PREREQ(2.13)
  25 AC_CANONICAL_SYSTEM
  26 AC_ARG_PROGRAM
  27
  28 # Get 'install' or 'install-sh' and its variants.
  29 AC_PROG_INSTALL
  30 ACX_PROG_LN
  31 AC_PROG_LN_S
  32
  33 ### we might need to use some other shell than /bin/sh for running subshells
  34 ### If we are on Windows, search for the shell.  This will permit people
  35 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  36 ### without also having to set CONFIG_SHELL.  This code will work when
  37 ### using bash, which sets OSTYPE.
  38 case "${OSTYPE}" in
  39 *win32*)
  40   if test x${CONFIG_SHELL} = x ; then
  41     if test ! -f /bin/sh ; then
  42       if test x${SHELL} != x && test -f ${SHELL} ; then
  43         CONFIG_SHELL=${SHELL}
  44         export CONFIG_SHELL
  45       else
  46         for prog in sh sh.exe bash bash.exe; do
  47           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  48           for dir in $PATH; do
  49             test -z "$dir" && dir=.
  50             if test -f $dir/$prog; then
  51               CONFIG_SHELL=$dir/$prog
  52               export CONFIG_SHELL
  53               break
  54             fi
  55           done
  56           IFS="$save_ifs"
  57           test -n "${CONFIG_SHELL}" && break
  58         done
  59       fi
  60     fi
  61   fi
  62   ;;
  63 esac
  64
  65 config_shell=${CONFIG_SHELL-/bin/sh}
  66
  67 progname=$0
  68 # if PWD already has a value, it is probably wrong.
  69 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  70
  71 # Export original configure arguments for use by sub-configures.  These
  72 # will be expanded by make, so quote '$'.
  73 tmp="$progname $@"
  74 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
  75 $tmp
  76 EOF_SED
  77 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
  78 rm -f conftestsed.out
  79 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  80
  81 moveifchange=${srcdir}/move-if-change
  82
  83 # Set srcdir to "." if that's what it is.
  84 # This is important for multilib support.
  85 pwd=`${PWDCMD-pwd}`
  86 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  87 if test "${pwd}" = "${srcpwd}" ; then
  88   srcdir=.
  89 fi
  90
  91 topsrcdir=$srcpwd
  92
  93 extra_host_args=
  94 # Define the trigger file to make sure configure will re-run whenever
  95 # the gcc version number changes.
  96 if test "${with_gcc_version_trigger+set}" = set ; then
  97   gcc_version_trigger="$with_gcc_version_trigger"
  98   gcc_version=`grep version_string ${with_gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
  99 else
 100   # If gcc's sources are available, define the trigger file.
 101   if test -f ${topsrcdir}/gcc/version.c ; then
 102     gcc_version_trigger=${topsrcdir}/gcc/version.c
 103     gcc_version=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
 104     case "$ac_configure_args" in
 105       *--with-gcc-version-trigger=$gcc_version_trigger* )
 106         ;;
 107       * )
 108         # Add to all subconfigure arguments: build, host, and target.
 109         ac_configure_args="$ac_configure_args --with-gcc-version-trigger=$gcc_version_trigger"
 110         ;;
 111     esac
 112   fi
 113 fi
 114
 115 ### To add a new directory to the tree, first choose whether it is a target
 116 ### or a host dependent tool.  Then put it into the appropriate list
 117 ### (library or tools, host or target), doing a dependency sort.
 118
 119 # Subdirs will be configured in the order listed in build_configdirs,
 120 # configdirs, or target_configdirs; see the serialization section below.
 121
 122 # Dependency sorting is only needed when *configuration* must be done in
 123 # a particular order.  In all cases a dependency should be specified in
 124 # the Makefile, whether or not it's implicitly specified here.
 125
 126 # Double entries in build_configdirs, configdirs, or target_configdirs may
 127 # cause circular dependencies and break everything horribly.
 128
 129 # these library is used by various programs built for the build
 130 # environment
 131 #
 132 build_libs="build-libiberty"
 133
 134 # these tools are built for the build environment
 135 build_tools="build-texinfo build-byacc build-flex build-bison build-m4"
 136
 137 # these libraries are used by various programs built for the host environment
 138 #
 139 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl tix libgui zlib libbanshee libcpp"
 140
 141 # these tools are built for the host environment
 142 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 143 # know that we are building the simulator.
 144 # binutils, gas and ld appear in that order because it makes sense to run
 145 # "make check" in that particular order.
 146 host_tools="texinfo byacc flex bison binutils gas ld 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"
 147
 148 # libgcj represents the runtime libraries only used by gcj.
 149 libgcj="target-libffi \
 150         target-boehm-gc \
 151         target-zlib \
 152         target-qthreads \
 153         target-libjava"
 154
 155 # these libraries are built for the target environment, and are built after
 156 # the host libraries and the host tools (which may be a cross compiler)
 157 #
 158 target_libraries="target-libiberty \
 159                 target-libgloss \
 160                 target-newlib \
 161                 target-libstdc++-v3 \
 162                 target-libmudflap \
 163                 target-libgfortran \
 164                 ${libgcj} \
 165                 target-libobjc \
 166                 target-libada"
 167
 168 # these tools are built using the target libraries, and are intended to
 169 # run only in the target environment
 170 #
 171 # note: any program that *uses* libraries that are in the "target_libraries"
 172 # list belongs in this list.  those programs are also very likely
 173 # candidates for the "native_only" list which follows
 174 #
 175 target_tools="target-examples target-groff target-gperf target-rda"
 176
 177 ################################################################################
 178
 179 ## All tools belong in one of the four categories, and are assigned above
 180 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 181 ## is important because configure will choke if they ever get through.
 182 ## ${configdirs} is directories we build using the host tools.
 183 ## ${target_configdirs} is directories we build using the target tools.
 184 configdirs=`echo ${host_libs} ${host_tools}`
 185 target_configdirs=`echo ${target_libraries} ${target_tools}`
 186
 187 # Only make build modules if build != host.
 188 if test ${host_alias} != ${build_alias} ; then
 189   build_configdirs=`echo ${build_libs} ${build_tools}`
 190 fi
 191
 192 ################################################################################
 193
 194 srcname="gnu development package"
 195
 196 # This gets set non-empty for some net releases of packages.
 197 appdirs=""
 198
 199 # Define is_cross_compiler to save on calls to 'test'.
 200 is_cross_compiler=
 201 if test x"${host}" = x"${target}" ; then
 202   is_cross_compiler=no
 203 else
 204   is_cross_compiler=yes
 205 fi
 206
 207 # Find the build and target subdir names.
 208 GCC_TOPLEV_SUBDIRS
 209
 210 # Skipdirs are removed silently.
 211 skipdirs=
 212 # Noconfigdirs are removed loudly.
 213 noconfigdirs=""
 214
 215 use_gnu_ld=
 216 # Make sure we don't let GNU ld be added if we didn't want it.
 217 if test x$with_gnu_ld = xno ; then
 218   use_gnu_ld=no
 219   noconfigdirs="$noconfigdirs ld"
 220 fi
 221
 222 use_gnu_as=
 223 # Make sure we don't let GNU as be added if we didn't want it.
 224 if test x$with_gnu_as = xno ; then
 225   use_gnu_as=no
 226   noconfigdirs="$noconfigdirs gas"
 227 fi
 228
 229 # some tools are so dependent upon X11 that if we're not building with X,
 230 # it's not even worth trying to configure, much less build, that tool.
 231
 232 case ${with_x} in
 233   yes | "") ;; # the default value for this tree is that X11 is available
 234   no)
 235     skipdirs="${skipdirs} tk tix itcl libgui"
 236     # We won't be able to build gdbtk without X.
 237     enable_gdbtk=no
 238     ;;
 239   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 240 esac
 241
 242 # Some tools are only suitable for building in a "native" situation.
 243 # Remove these if host!=target.
 244 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"
 245
 246 # Similarly, some are only suitable for cross toolchains.
 247 # Remove these if host=target.
 248 cross_only="target-libgloss target-newlib target-opcodes"
 249
 250 case $is_cross_compiler in
 251   no) skipdirs="${skipdirs} ${cross_only}" ;;
 252   yes) skipdirs="${skipdirs} ${native_only}" ;;
 253 esac
 254
 255 # If both --with-headers and --with-libs are specified, default to
 256 # --without-newlib.
 257 if test x"${with_headers}" != x && test x"${with_headers} != xno \
 258    && test x"${with_libs}" != x && test x"${with_libs} != xno ; then
 259   if test x"${with_newlib}" = x ; then
 260     with_newlib=no
 261   fi
 262 fi
 263
 264 # Recognize --with-newlib/--without-newlib.
 265 case ${with_newlib} in
 266   no) skipdirs="${skipdirs} target-newlib" ;;
 267   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 268 esac
 269
 270 # Configure extra directories which are host specific
 271
 272 case "${host}" in
 273   *-cygwin*)
 274     configdirs="$configdirs libtermcap" ;;
 275 esac
 276
 277 # Remove more programs from consideration, based on the host or
 278 # target this usually means that a port of the program doesn't
 279 # exist yet.
 280
 281 case "${host}" in
 282   hppa*64*-*-*)
 283     noconfigdirs="$noconfigdirs byacc"
 284     ;;
 285   i[[3456789]]86-*-vsta)
 286     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl tix gnuserv gettext"
 287     ;;
 288   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 289     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl tix gnuserv libffi"
 290     ;;
 291   i[[3456789]]86-*-mingw32*)
 292     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl tix gnuserv"
 293     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 294     ;;
 295   i[[3456789]]86-*-beos*)
 296     noconfigdirs="$noconfigdirs tk itcl tix libgui gdb"
 297     ;;
 298   *-*-cygwin*)
 299     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 300     ;;
 301   *-*-netbsd*)
 302     noconfigdirs="$noconfigdirs rcs"
 303     ;;
 304   ppc*-*-pe)
 305     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl tix gnuserv"
 306     ;;
 307   powerpc-*-beos*)
 308     noconfigdirs="$noconfigdirs tk itcl tix libgui gdb dejagnu readline"
 309     ;;
 310   *-*-darwin*)
 311     noconfigdirs="$noconfigdirs tk itcl tix libgui"
 312     ;;
 313 esac
 314
 315 AC_ARG_WITH(libbanshee,
 316 [  --without-libbanshee   Don't build with libbanshee])
 317 case ${with_libbanshee} in
 318   no)
 319     noconfigdirs="$noconfigdirs libbanshee" ;;
 320   yes|"")
 321     with_libbanshee=yes
 322     ;;
 323   *)
 324     AC_MSG_ERROR([--with-libbanshee can only be empty, "yes" or "no" (empty defaults to "yes".])
 325 esac
 326
 327 AC_ARG_ENABLE(libada,
 328 [  --enable-libada        Builds libada directory],
 329 ENABLE_LIBADA=$enableval,
 330 ENABLE_LIBADA=yes)
 331 if test "${ENABLE_LIBADA}" != "yes" ; then
 332   noconfigdirs="$noconfigdirs target-libada"
 333 fi
 334
 335 # Save it here so that, even in case of --enable-libgcj, if the Java
 336 # front-end isn't enabled, we still get libgcj disabled.
 337 libgcj_saved=$libgcj
 338 case $enable_libgcj in
 339 yes)
 340   # If we reset it here, it won't get added to noconfigdirs in the
 341   # target-specific build rules, so it will be forcibly enabled
 342   # (unless the Java language itself isn't enabled).
 343   libgcj=
 344   ;;
 345 no)
 346   # Make sure we get it printed in the list of not supported target libs.
 347   noconfigdirs="$noconfigdirs ${libgcj}"
 348   ;;
 349 esac
 350
 351
 352 # Allow --disable-libmudflap to exclude target-libmudflap
 353 case $enable_libmudflap in
 354 yes)
 355     ;;
 356 no)
 357     noconfigdirs="$noconfigdirs target-libmudflap"
 358     ;;
 359 "")
 360     case "${target}" in
 361     *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
 362         # Enable libmudflap by default in GNU and friends.
 363         ;;
 364     *-*-freebsd*)
 365         # Enable libmudflap by default in FreeBSD.
 366         ;;
 367     *)
 368         # Disable it by default everywhere else.
 369         noconfigdirs="$noconfigdirs target-libmudflap"
 370         ;;
 371     esac
 372 esac
 373
 374
 375 case "${target}" in
 376   *-*-chorusos)
 377     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 378     ;;
 379   powerpc-*-darwin*)
 380     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 381     noconfigdirs="$noconfigdirs target-libobjc"
 382     ;;
 383   *-*-darwin*)
 384     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 385     noconfigdirs="$noconfigdirs target-libobjc ${libgcj}"
 386     ;;
 387   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 388     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 389     ;;
 390   *-*-freebsd* | *-*-kfreebsd*-gnu)
 391     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 392     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 393         && test -f /usr/local/include/gmp.h; then
 394       with_gmp=/usr/local
 395     fi
 396
 397     # Skip some stuff that's unsupported on some FreeBSD configurations.
 398     case "${target}" in
 399       i*86-*-*) ;;
 400       alpha*-*-*) ;;
 401       *)
 402         noconfigdirs="$noconfigdirs ${libgcj}"
 403         ;;
 404     esac
 405     ;;
 406   *-*-kaos*)
 407     # Remove unsupported stuff on all kaOS configurations.
 408     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 409     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 410     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 411     noconfigdirs="$noconfigdirs target-libgloss"
 412     ;;
 413   *-*-netbsd*)
 414     # Skip some stuff on all NetBSD configurations.
 415     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 416
 417     # Skip some stuff that's unsupported on some NetBSD configurations.
 418     case "${target}" in
 419       i*86-*-netbsdelf*) ;;
 420       arm*-*-netbsdelf*) ;;
 421       *)
 422         noconfigdirs="$noconfigdirs ${libgcj}"
 423         ;;
 424     esac
 425     ;;
 426   *-*-netware)
 427     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-newlib target-libiberty target-libgloss ${libgcj}"
 428     ;;
 429   *-*-rtems*)
 430     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 431     ;;
 432   *-*-uclinux*)
 433     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 434     ;;
 435   *-*-vxworks*)
 436     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}"
 437     ;;
 438   alpha*-dec-osf*)
 439     # ld works, but does not support shared libraries.
 440     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 441     # gas doesn't generate exception information.
 442     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 443     ;;
 444   alpha*-*-*vms*)
 445     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 446     ;;
 447   alpha*-*-linux*)
 448     # newlib is not 64 bit ready
 449     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 450     ;;
 451   alpha*-*-*)
 452     # newlib is not 64 bit ready
 453     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 454     ;;
 455   am33_2.0-*-linux*)
 456     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 457     ;;
 458   sh-*-linux*)
 459     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 460     ;;
 461   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 462     noconfigdirs="$noconfigdirs ${libgcj}"
 463     noconfigdirs="$noconfigdirs target-examples"
 464     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 465     noconfigdirs="$noconfigdirs tcl tix tk itcl libgui sim"
 466     noconfigdirs="$noconfigdirs expect dejagnu"
 467     # the C++ libraries don't build on top of CE's C libraries
 468     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 469     noconfigdirs="$noconfigdirs target-newlib"
 470     case "${host}" in
 471       *-*-cygwin*) ;; # keep gdb and readline
 472       *) noconfigdirs="$noconfigdirs gdb readline"
 473          ;;
 474     esac
 475     ;;
 476   arc-*-*)
 477     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 478     ;;
 479   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 480     noconfigdirs="$noconfigdirs ${libgcj}"
 481     ;;
 482   arm-*-elf* | strongarm-*-elf* | xscale-*-elf*)
 483     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 484     ;;
 485   arm-*-pe*)
 486     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 487     ;;
 488   arm-*-oabi*)
 489     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 490     ;;
 491   thumb-*-coff)
 492     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 493     ;;
 494   thumb-*-elf)
 495     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 496     ;;
 497   thumb-*-oabi)
 498     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 499     ;;
 500   thumb-*-pe)
 501     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 502     ;;
 503   arm-*-riscix*)
 504     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 505     ;;
 506   avr-*-*)
 507     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 508     ;;
 509   c4x-*-* | tic4x-*-*)
 510     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 511     ;;
 512   c54x*-*-* | tic54x-*-*)
 513     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 514     ;;
 515   cris-*-*)
 516     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 517     ;;
 518   crx-*-*)
 519     noconfigdirs="$noconfigdirs target-libgloss target-libstdc++-v3 target-mudflap ${libgcj}"
 520     ;;
 521   d10v-*-*)
 522     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 523     ;;
 524   d30v-*-*)
 525     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 526     ;;
 527   fr30-*-elf*)
 528     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 529     ;;
 530   frv-*-*)
 531     noconfigdirs="$noconfigdirs ${libgcj}"
 532     ;;
 533   h8300*-*-*)
 534     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 535     ;;
 536   h8500-*-*)
 537     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 538     ;;
 539   hppa*64*-*-linux* | parisc*64*-*-linux*)
 540     # In this case, it's because the hppa64-linux target is for
 541     # the kernel only at this point and has no libc, and thus no
 542     # headers, crt*.o, etc., all of which are needed by these.
 543     noconfigdirs="$noconfigdirs target-zlib"
 544     ;;
 545   hppa*-*-*elf* | \
 546   parisc*-*-linux* | hppa*-*-linux* | \
 547   hppa*-*-lites* | \
 548   hppa*-*-openbsd* | \
 549   hppa*64*-*-*)
 550     noconfigdirs="$noconfigdirs ${libgcj}"
 551     # Do configure ld/binutils/gas for this case.
 552     ;;
 553   hppa*-*-*)
 554     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 555     # build on HP-UX 10.20.
 556     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 557     ;;
 558   i960-*-*)
 559     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 560     ;;
 561   ia64*-*-elf*)
 562     # No gdb support yet.
 563     noconfigdirs="$noconfigdirs tix readline mmalloc libgui itcl gdb"
 564     ;;
 565   ia64*-**-hpux*)
 566     # No gdb or ld support yet.
 567     noconfigdirs="$noconfigdirs ${libgcj} tix readline mmalloc libgui itcl gdb ld"
 568     ;;
 569   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 570     noconfigdirs="$noconfigdirs ${libgcj}"
 571     ;;
 572   i[[3456789]]86-*-linux*)
 573     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 574     # not build java stuff by default.
 575     case "${target}" in
 576       *-*-*libc1*)
 577         noconfigdirs="$noconfigdirs ${libgcj}";;
 578     esac
 579
 580     # This section makes it possible to build newlib natively on linux.
 581     # If we are using a cross compiler then don't configure newlib.
 582     if test x${is_cross_compiler} != xno ; then
 583       noconfigdirs="$noconfigdirs target-newlib"
 584     fi
 585     noconfigdirs="$noconfigdirs target-libgloss"
 586     # If we are not using a cross compiler, do configure newlib.
 587     # Note however, that newlib will only be configured in this situation
 588     # if the --with-newlib option has been given, because otherwise
 589     # 'target-newlib' will appear in skipdirs.
 590     ;;
 591   i[[3456789]]86-*-mingw32*)
 592     target_configdirs="$target_configdirs target-mingw"
 593     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 594
 595     # Can't build gdb for mingw32 if not native.
 596     case "${host}" in
 597       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 598       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix gnuserv"
 599          ;;
 600     esac
 601     ;;
 602   *-*-cygwin*)
 603     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 604     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 605     # always build newlib if winsup directory is present.
 606     if test -d "$srcdir/winsup"
 607     then
 608       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 609     else
 610       echo "Warning: winsup is missing so newlib can't be built."
 611     fi
 612
 613     # Can't build gdb for Cygwin if not native.
 614     case "${host}" in
 615       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 616       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix libgui gnuserv"
 617          ;;
 618     esac
 619     ;;
 620   i[[3456789]]86-*-pe)
 621     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 622     ;;
 623   i[[3456789]]86-*-sco3.2v5*)
 624     # The linker does not yet know about weak symbols in COFF,
 625     # and is not configured to handle mixed ELF and COFF.
 626     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 627     ;;
 628   i[[3456789]]86-*-sco*)
 629     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 630     ;;
 631   i[[3456789]]86-*-solaris2*)
 632     noconfigdirs="$noconfigdirs target-libgloss"
 633     ;;
 634   i[[3456789]]86-*-sysv4*)
 635     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 636     ;;
 637   i[[3456789]]86-*-beos*)
 638     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 639     ;;
 640   m32r-*-*)
 641     noconfigdirs="$noconfigdirs ${libgcj}"
 642     ;;
 643   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 644     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 645     ;;
 646   m68k-*-elf*)
 647     noconfigdirs="$noconfigdirs ${libgcj}"
 648     ;;
 649   m68k-*-coff*)
 650     noconfigdirs="$noconfigdirs ${libgcj}"
 651     ;;
 652   mcore-*-pe*)
 653   # The EPOC C++ environment does not support exceptions or rtti,
 654   # and so building libstdc++-v3 tends not to always work.
 655     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 656     ;;
 657   mmix-*-*)
 658     noconfigdirs="$noconfigdirs ${libgcj} gdb libgloss"
 659     ;;
 660   mn10200-*-*)
 661     noconfigdirs="$noconfigdirs ${libgcj}"
 662     ;;
 663   mn10300-*-*)
 664     noconfigdirs="$noconfigdirs ${libgcj}"
 665     ;;
 666   powerpc-*-aix*)
 667     # copied from rs6000-*-* entry
 668     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 669     ;;
 670   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 671     target_configdirs="$target_configdirs target-winsup"
 672     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl tix gnuserv ${libgcj}"
 673     # always build newlib.
 674     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 675     ;;
 676     # This is temporary until we can link against shared libraries
 677   powerpcle-*-solaris*)
 678     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl tix gnuserv ${libgcj}"
 679     ;;
 680   powerpc-*-beos*)
 681     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 682     ;;
 683   powerpc-*-eabi)
 684     noconfigdirs="$noconfigdirs ${libgcj}"
 685     ;;
 686   rs6000-*-lynxos*)
 687     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 688     ;;
 689   rs6000-*-aix*)
 690     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 691     ;;
 692   rs6000-*-*)
 693     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 694     ;;
 695   m68k-apollo-*)
 696     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 697     ;;
 698   mips*-*-irix5*)
 699     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 700     ;;
 701   mips*-*-irix6*)
 702     # Linking libjava exceeds command-line length limits on at least
 703     # IRIX 6.2, but not on IRIX 6.5.
 704     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 705     # <oldham@codesourcery.com>
 706     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 707     ;;
 708   mips*-dec-bsd*)
 709     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 710     ;;
 711   mips*-*-bsd*)
 712     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 713     ;;
 714   mipstx39-*-*)
 715     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 716     ;;
 717   mips64*-*-linux*)
 718     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 719     ;;
 720   mips*-*-linux*)
 721     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 722     ;;
 723   mips*-*-*)
 724     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 725     ;;
 726   romp-*-*)
 727     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 728     ;;
 729   sh-*-*)
 730     case "${host}" in
 731       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 732       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 733       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 734       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 735     esac
 736     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 737     ;;
 738   sh64-*-*)
 739     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 740     ;;
 741   sparc-*-elf*)
 742     noconfigdirs="$noconfigdirs ${libgcj}"
 743     ;;
 744   sparc64-*-elf*)
 745     noconfigdirs="$noconfigdirs ${libgcj}"
 746     ;;
 747   sparclite-*-*)
 748     noconfigdirs="$noconfigdirs ${libgcj}"
 749     ;;
 750   sparc-*-sunos4*)
 751     noconfigdirs="$noconfigdirs ${libgcj}"
 752     if test x${is_cross_compiler} != xno ; then
 753            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 754     else
 755            use_gnu_ld=no
 756     fi
 757     ;;
 758   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 759     ;;
 760   v810-*-*)
 761     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 762     ;;
 763   v850-*-*)
 764     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 765     ;;
 766   v850e-*-*)
 767     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 768     ;;
 769   v850ea-*-*)
 770     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 771     ;;
 772   vax-*-vms)
 773     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 774     ;;
 775   vax-*-*)
 776     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 777     ;;
 778   xtensa-*-*)
 779     noconfigdirs="$noconfigdirs ${libgcj}"
 780     ;;
 781   ip2k-*-*)
 782     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 783     ;;
 784   *-*-linux*)
 785     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 786     ;;
 787   *-*-lynxos*)
 788     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 789     ;;
 790   *-*-*)
 791     noconfigdirs="$noconfigdirs ${libgcj}"
 792     ;;
 793 esac
 794
 795 # If we aren't building newlib, then don't build libgloss, since libgloss
 796 # depends upon some newlib header files.
 797 case "${noconfigdirs}" in
 798   *target-libgloss*) ;;
 799   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 800 esac
 801
 802 # Work in distributions that contain no compiler tools, like Autoconf.
 803 tentative_cc=""
 804 host_makefile_frag=/dev/null
 805 if test -d ${srcdir}/config ; then
 806 case "${host}" in
 807   m68k-hp-hpux*)
 808     # Avoid "too much defining" errors from HPUX compiler.
 809     tentative_cc="cc -Wp,-H256000"
 810     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 811     # If it's HP/UX ar, this should be harmless.
 812     RANLIB="ar ts"
 813     ;;
 814   m68k-apollo-sysv*)
 815     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 816     ;;
 817   m68k-apollo-bsd*)
 818     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 819     # chokes on bfd, the compiler won't let you assign integers to enums, and
 820     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 821     # the apollo compiler" (the preferred version of GCC could be called cc,
 822     # or whatever), but I'm not sure leaving CC as cc is any better...
 823     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 824     # Used to have BISON=yacc.
 825     tentative_cc=gcc
 826     ;;
 827   m88k-dg-dgux*)
 828     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 829     ;;
 830   m88k-harris-cxux*)
 831     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 832     tentative_cc="cc -Xa"
 833     host_makefile_frag="config/mh-cxux"
 834     ;;
 835   m88k-motorola-sysv*)
 836     ;;
 837   mips*-dec-ultrix*)
 838     tentative_cc="cc -Wf,-XNg1000"
 839     host_makefile_frag="config/mh-decstation"
 840     ;;
 841   mips*-nec-sysv4*)
 842     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 843     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 844     host_makefile_frag="config/mh-necv4"
 845     ;;
 846   mips*-sgi-irix4*)
 847     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 848     # environment.  Also bump switch table size so that cp-parse will
 849     # compile.  Bump string length limit so linker builds.
 850     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 851     ;;
 852   mips*-*-sysv4*)
 853     host_makefile_frag="config/mh-sysv4"
 854     ;;
 855   mips*-*-sysv*)
 856     # This is for a MIPS running RISC/os 4.52C.
 857
 858     # This is needed for GDB, but needs to be in the top-level make because
 859     # if a library is compiled with the bsd headers and gets linked with the
 860     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 861     # a different size).
 862     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 863     # known except to select the sysv environment.  Could we use /proc instead?
 864     # These "sysv environments" and "bsd environments" often end up being a pain.
 865     #
 866     # This is not part of CFLAGS because perhaps not all C compilers have this
 867     # option.
 868     tentative_cc="cc -systype sysv"
 869     ;;
 870   i370-ibm-opened*)
 871     tentative_cc="c89"
 872     ;;
 873   i[[3456789]]86-*-sysv5*)
 874     host_makefile_frag="config/mh-sysv5"
 875     ;;
 876   i[[3456789]]86-*-dgux*)
 877     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 878     host_makefile_frag="config/mh-dgux386"
 879     ;;
 880   i[[3456789]]86-ncr-sysv4.3*)
 881     # The MetaWare compiler will generate a copyright message unless you
 882     # turn it off by adding the -Hnocopyr flag.
 883     tentative_cc="cc -Hnocopyr"
 884     ;;
 885   i[[3456789]]86-ncr-sysv4*)
 886     # for an NCR 3000 (i486/SVR4) system.
 887     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 888     # This compiler not only emits obnoxious copyright messages every time
 889     # you run it, but it chokes and dies on a whole bunch of GNU source
 890     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 891     tentative_cc="/usr/ccs/ATT/cc"
 892     host_makefile_frag="config/mh-ncr3000"
 893     ;;
 894   i[[3456789]]86-*-sco3.2v5*)
 895     ;;
 896   i[[3456789]]86-*-sco*)
 897     # The native C compiler botches some simple uses of const.  Unfortunately,
 898     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 899     tentative_cc="cc -Dconst="
 900     host_makefile_frag="config/mh-sco"
 901     ;;
 902   i[[3456789]]86-*-udk*)
 903     host_makefile_frag="config/mh-sysv5"
 904     ;;
 905   i[[3456789]]86-*-solaris2*)
 906     host_makefile_frag="config/mh-sysv4"
 907     ;;
 908   i[[3456789]]86-*-msdosdjgpp*)
 909     host_makefile_frag="config/mh-djgpp"
 910     ;;
 911   *-cygwin*)
 912     host_makefile_frag="config/mh-cygwin"
 913     ;;
 914   *-mingw32*)
 915     host_makefile_frag="config/mh-mingw32"
 916     ;;
 917   *-interix*)
 918     host_makefile_frag="config/mh-interix"
 919     ;;
 920   vax-*-ultrix2*)
 921     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 922     tentative_cc=gcc
 923     ;;
 924   *-*-solaris2*)
 925     host_makefile_frag="config/mh-solaris"
 926     ;;
 927   m68k-sun-sunos*)
 928     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 929     # without overflowing the jump tables (-J says to use a 32 bit table)
 930     tentative_cc="cc -J"
 931     ;;
 932   *-hp-hpux*)
 933     tentative_cc="cc -Wp,-H256000"
 934     ;;
 935   *-*-hiux*)
 936     tentative_cc="cc -Wp,-H256000"
 937     ;;
 938   rs6000-*-lynxos*)
 939     # /bin/cc is less than useful for our purposes.  Always use GCC
 940     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 941     host_makefile_frag="config/mh-lynxrs6k"
 942     ;;
 943   *-*-lynxos*)
 944     # /bin/cc is less than useful for our purposes.  Always use GCC
 945     tentative_cc="/bin/gcc"
 946     ;;
 947   *-*-sysv4*)
 948     host_makefile_frag="config/mh-sysv4"
 949     ;;
 950 esac
 951 fi
 952
 953 # If we aren't going to be using gcc, see if we can extract a definition
 954 # of CC from the fragment.
 955 # Actually, use the 'pre-extracted' version above.
 956 if test -z "${CC}" && test "${build}" = "${host}" ; then
 957   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 958   found=
 959   for dir in $PATH; do
 960     test -z "$dir" && dir=.
 961     if test -f $dir/gcc; then
 962       found=yes
 963       break
 964     fi
 965   done
 966   IFS="$save_ifs"
 967   if test -z "${found}" && test -n "${tentative_cc}" ; then
 968     CC=$tentative_cc
 969   fi
 970 fi
 971
 972 if test "${build}" != "${host}" ; then
 973   # If we are doing a Canadian Cross, in which the host and build systems
 974   # are not the same, we set reasonable default values for the tools.
 975
 976   CC=${CC-${host_alias}-gcc}
 977   CFLAGS=${CFLAGS-"-g -O2"}
 978   CXX=${CXX-${host_alias}-c++}
 979   CXXFLAGS=${CXXFLAGS-"-g -O2"}
 980   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
 981   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
 982   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
 983   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
 984   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
 985   BUILD_DIR_PREFIX=${build_subdir}
 986   BUILD_PREFIX=${build_alias}-
 987   BUILD_PREFIX_1=${build_alias}-
 988
 989 else
 990   # Set reasonable default values for some tools even if not Canadian.
 991   # Of course, these are different reasonable default values, originally
 992   # specified directly in the Makefile.
 993   # We don't export, so that autoconf can do its job.
 994   # Note that all these settings are above the fragment inclusion point
 995   # in Makefile.in, so can still be overridden by fragments.
 996   # This is all going to change when we autoconfiscate...
 997
 998   CC_FOR_BUILD="\$(CC)"
 999   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
1000   BUILD_DIR_PREFIX=
1001   BUILD_PREFIX=
1002   BUILD_PREFIX_1=loser-
1003
1004   AC_PROG_CC
1005
1006   # We must set the default linker to the linker used by gcc for the correct
1007   # operation of libtool.  If LD is not defined and we are using gcc, try to
1008   # set the LD default to the ld used by gcc.
1009   if test -z "$LD"; then
1010     if test "$GCC" = yes; then
1011       case $build in
1012       *-*-mingw*)
1013         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1014       *)
1015         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1016       esac
1017       case $gcc_prog_ld in
1018       # Accept absolute paths.
1019       [[\\/]* | [A-Za-z]:[\\/]*)]
1020         LD="$gcc_prog_ld" ;;
1021       esac
1022     fi
1023   fi
1024
1025   CXX=${CXX-"c++"}
1026   CFLAGS=${CFLAGS-"-g"}
1027   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1028 fi
1029
1030 ACX_PROG_GNAT
1031 ACX_PROG_CMP_IGNORE_INITIAL
1032
1033 # Check for GMP and MPFR
1034 gmplibs=
1035 gmpinc=
1036 have_gmp=yes
1037 # Specify a location for mpfr
1038 # check for this first so it ends up on the link line before gmp.
1039 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1040
1041 if test "x$with_mpfr_dir" != x; then
1042   gmpinc="-I$with_mpfr_dir/mpfr"
1043   gmplibs="$with_mpfr_dir/libmpfr.a"
1044 else
1045   gmplibs="-lmpfr"
1046 fi
1047
1048 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1049
1050 if test "x$with_mpfr" != x; then
1051   gmplibs="-L$with_mpfr/lib $gmplibs"
1052   gmpinc="-I$with_mpfr/include"
1053 fi
1054
1055 # Specify a location for gmp
1056 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1057
1058 if test "x$with_gmp_dir" != x; then
1059   gmpinc="$gmpinc -I$with_gmp_dir"
1060   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1061     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1062   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1063     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1064   fi
1065   # One of the later tests will catch the error if neither library is present.
1066 else
1067   gmplibs="$gmplibs -lgmp"
1068 fi
1069
1070 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1071
1072 if test "x$with_gmp" != x; then
1073   gmplibs="-L$with_gmp/lib $gmplibs"
1074   gmpinc="-I$with_gmp/include $gmpinc"
1075 fi
1076
1077 saved_CFLAGS="$CFLAGS"
1078 CFLAGS="$CFLAGS $gmpinc"
1079 # Check GMP actually works
1080 AC_MSG_CHECKING([for correct version of gmp.h])
1081 AC_TRY_COMPILE([#include "gmp.h"],[
1082 #if __GNU_MP_VERSION < 3
1083 choke me
1084 #endif
1085 ], [AC_MSG_RESULT([yes])],
1086   [AC_MSG_RESULT([no]); have_gmp=no])
1087
1088 if test x"$have_gmp" = xyes; then
1089   AC_MSG_CHECKING([for MPFR])
1090
1091   saved_LIBS="$LIBS"
1092   LIBS="$LIBS $gmplibs"
1093   AC_TRY_LINK([#include <gmp.h>
1094 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1095     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1096   LIBS="$saved_LIBS"
1097   CFLAGS="$saved_CFLAGS"
1098 fi
1099
1100 # Flags needed for both GMP and/or MPFR
1101 AC_SUBST(gmplibs)
1102 AC_SUBST(gmpinc)
1103
1104 # By default, C is the only stage 1 language.
1105 stage1_languages=c
1106 AC_SUBST(stage1_languages)
1107
1108 # Figure out what language subdirectories are present.
1109 # Look if the user specified --enable-languages="..."; if not, use
1110 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1111 # go away some day.
1112 # NB:  embedded tabs in this IF block -- do not untabify
1113 if test -d ${srcdir}/gcc; then
1114   if test x"${enable_languages+set}" != xset; then
1115     if test x"${LANGUAGES+set}" = xset; then
1116       enable_languages="${LANGUAGES}"
1117         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1118     else
1119       enable_languages=all
1120     fi
1121   else
1122     if test x"${enable_languages}" = x ||
1123        test x"${enable_languages}" = xyes;
1124        then
1125       echo configure.in: --enable-languages needs at least one language argument 1>&2
1126       exit 1
1127     fi
1128   fi
1129   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1130
1131   # First scan to see if an enabled language requires some other language.
1132   # We assume that a given config-lang.in will list all the language
1133   # front ends it requires, even if some are required indirectly.
1134   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1135     case ${lang_frag} in
1136       ..) ;;
1137       # The odd quoting in the next line works around
1138       # an apparent bug in bash 1.12 on linux.
1139       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1140       *)
1141         # From the config-lang.in, get $language, $lang_requires
1142         language=
1143         lang_requires=
1144         . ${lang_frag}
1145         for other in ${lang_requires} ; do
1146           case ,${enable_languages}, in
1147             *,$other,*) ;;
1148             *,all,*) ;;
1149             *,$language,*)
1150               echo " \`$other' language required by \`$language'; enabling" 1>&2
1151               enable_languages="${enable_languages},${other}"
1152               ;;
1153           esac
1154         done
1155         ;;
1156     esac
1157   done
1158
1159   new_enable_languages=c
1160   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1161
1162   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1163     case ${lang_frag} in
1164       ..) ;;
1165       # The odd quoting in the next line works around
1166       # an apparent bug in bash 1.12 on linux.
1167       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1168       *)
1169         # From the config-lang.in, get $language, $target_libs,
1170         # $lang_dirs, $boot_language, and $build_by_default
1171         language=
1172         target_libs=
1173         lang_dirs=
1174         boot_language=
1175         build_by_default=
1176         need_gmp=
1177         . ${lang_frag}
1178         # This is quite sensitive to the ordering of the case statement arms.
1179         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1180           *::*:*)
1181             echo "${lang_frag} doesn't set \$language." 1>&2
1182             exit 1
1183             ;;
1184           *:ada:no:*)
1185             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1186             add_this_lang=no
1187             ;;
1188           *,${language},*:*:*:*)
1189             # Language was explicitly selected; include it.
1190             add_this_lang=yes
1191             ;;
1192           *,all,*:*:*:no)
1193             # 'all' was selected, but this is not a default language
1194             # so do not include it.
1195             add_this_lang=no
1196             ;;
1197           *,all,*:*:*:*)
1198             # 'all' was selected and this is a default language; include it.
1199             add_this_lang=yes
1200             ;;
1201           *)
1202             add_this_lang=no
1203             ;;
1204         esac
1205
1206         # Disable language that need GMP if it isn't available.
1207         if test  x"$need_gmp" = xyes && test x"$have_gmp" = xno; then
1208           add_this_lang=no
1209         fi
1210
1211         case $add_this_lang in
1212           no)
1213             # Remove language-dependent dirs.
1214             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1215             ;;
1216           *)
1217             new_enable_languages="$new_enable_languages,$language"
1218             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1219             case ${boot_language} in
1220               yes)
1221                 # Add to (comma-separated) list of stage 1 languages.
1222                 stage1_languages="${stage1_languages},${language}"
1223                 ;;
1224             esac
1225             ;;
1226         esac
1227         ;;
1228     esac
1229   done
1230
1231   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1232   if test "x$missing_languages" != x; then
1233     AC_MSG_ERROR([
1234 The following requested languages were not found: ${missing_languages}])
1235   fi
1236
1237   if test "x$new_enable_languages" != "x$enable_languages"; then
1238     echo The following languages will be built: ${new_enable_languages}
1239   fi
1240   enable_languages="$new_enable_languages"
1241   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1242 fi
1243
1244 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
1245 # $target_configdirs.
1246 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1247
1248 notsupp=""
1249 for dir in . $skipdirs $noconfigdirs ; do
1250   dirname=`echo $dir | sed -e s/target-//g`
1251   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1252     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1253     if test -r $srcdir/$dirname/configure ; then
1254       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1255         true
1256       else
1257         notsupp="$notsupp $dir"
1258       fi
1259     fi
1260   fi
1261   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1262     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1263     if test -r $srcdir/$dirname/configure ; then
1264       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1265         true
1266       else
1267         notsupp="$notsupp $dir"
1268       fi
1269     fi
1270   fi
1271 done
1272
1273 # Sometimes the tools are distributed with libiberty but with no other
1274 # libraries.  In that case, we don't want to build target-libiberty.
1275 if test -n "${target_configdirs}" ; then
1276   others=
1277   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1278     if test "$i" != "libiberty" ; then
1279       if test -r $srcdir/$i/configure ; then
1280         others=yes;
1281         break;
1282       fi
1283     fi
1284   done
1285   if test -z "${others}" ; then
1286     target_configdirs=
1287   fi
1288 fi
1289
1290 # Quietly strip out all directories which aren't configurable in this tree.
1291 # This relies on all configurable subdirectories being autoconfiscated, which
1292 # is now the case.
1293 build_configdirs_all="$build_configdirs"
1294 build_configdirs=
1295 for i in ${build_configdirs_all} ; do
1296   j=`echo $i | sed -e s/build-//g`
1297   if test -f ${srcdir}/$j/configure ; then
1298     build_configdirs="${build_configdirs} $i"
1299   fi
1300 done
1301
1302 configdirs_all="$configdirs"
1303 configdirs=
1304 for i in ${configdirs_all} ; do
1305   if test -f ${srcdir}/$i/configure ; then
1306     configdirs="${configdirs} $i"
1307   fi
1308 done
1309
1310 target_configdirs_all="$target_configdirs"
1311 target_configdirs=
1312 for i in ${target_configdirs_all} ; do
1313   j=`echo $i | sed -e s/target-//g`
1314   if test -f ${srcdir}/$j/configure ; then
1315     target_configdirs="${target_configdirs} $i"
1316   fi
1317 done
1318
1319 # Produce a warning message for the subdirs we can't configure.
1320 # This isn't especially interesting in the Cygnus tree, but in the individual
1321 # FSF releases, it's important to let people know when their machine isn't
1322 # supported by the one or two programs in a package.
1323
1324 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1325   # If $appdirs is non-empty, at least one of those directories must still
1326   # be configured, or we error out.  (E.g., if the gas release supports a
1327   # specified target in some subdirs but not the gas subdir, we shouldn't
1328   # pretend that all is well.)
1329   if test -n "$appdirs" ; then
1330     for dir in $appdirs ; do
1331       if test -r $dir/Makefile.in ; then
1332         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1333           appdirs=""
1334           break
1335         fi
1336         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1337           appdirs=""
1338           break
1339         fi
1340       fi
1341     done
1342     if test -n "$appdirs" ; then
1343       echo "*** This configuration is not supported by this package." 1>&2
1344       exit 1
1345     fi
1346   fi
1347   # Okay, some application will build, or we don't care to check.  Still
1348   # notify of subdirs not getting built.
1349   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1350   echo "    ${notsupp}" 1>&2
1351   echo "    (Any other directories should still work fine.)" 1>&2
1352 fi
1353
1354 case "$host" in
1355   *msdosdjgpp*)
1356     enable_gdbtk=no ;;
1357 esac
1358
1359 copy_dirs=
1360
1361 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1362 # the named directory are copied to $(tooldir)/sys-include.
1363 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1364   if test x${is_cross_compiler} = xno ; then
1365     echo 1>&2 '***' --with-headers is only supported when cross compiling
1366     exit 1
1367   fi
1368   if test x"${with_headers}" != xyes ; then
1369     case "${exec_prefixoption}" in
1370     "") x=${prefix} ;;
1371     *) x=${exec_prefix} ;;
1372     esac
1373     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1374   fi
1375 fi
1376
1377 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1378 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1379 # are permitted.
1380 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1381   if test x${is_cross_compiler} = xno ; then
1382     echo 1>&2 '***' --with-libs is only supported when cross compiling
1383     exit 1
1384   fi
1385   if test x"${with_libs}" != xyes ; then
1386     # Copy the libraries in reverse order, so that files in the first named
1387     # library override files in subsequent libraries.
1388     case "${exec_prefixoption}" in
1389     "") x=${prefix} ;;
1390     *) x=${exec_prefix} ;;
1391     esac
1392     for l in ${with_libs}; do
1393       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1394     done
1395   fi
1396 fi
1397
1398 # Handle ${copy_dirs}
1399 set fnord ${copy_dirs}
1400 shift
1401 while test $# != 0 ; do
1402   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1403     :
1404   else
1405     echo Copying $1 to $2
1406
1407     # Use the install script to create the directory and all required
1408     # parent directories.
1409     if test -d $2 ; then
1410       :
1411     else
1412       echo >config.temp
1413       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1414     fi
1415
1416     # Copy the directory, assuming we have tar.
1417     # FIXME: Should we use B in the second tar?  Not all systems support it.
1418     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1419
1420     # It is the responsibility of the user to correctly adjust all
1421     # symlinks.  If somebody can figure out how to handle them correctly
1422     # here, feel free to add the code.
1423
1424     echo $1 > $2/COPIED
1425   fi
1426   shift; shift
1427 done
1428
1429 extra_arflags_for_target=
1430 extra_nmflags_for_target=
1431 extra_ranlibflags_for_target=
1432 target_makefile_frag=/dev/null
1433 case "${target}" in
1434   i[[3456789]]86-*-netware*)
1435     target_makefile_frag="config/mt-netware"
1436     ;;
1437   powerpc-*-netware*)
1438     target_makefile_frag="config/mt-netware"
1439     ;;
1440   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1441     target_makefile_frag="config/mt-gnu"
1442     ;;
1443   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1444     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1445     # commands to handle both 32-bit and 64-bit objects.  These flags are
1446     # harmless if we're using GNU nm or ar.
1447     extra_arflags_for_target=" -X32_64"
1448     extra_nmflags_for_target=" -B -X32_64"
1449     ;;
1450   *-*-darwin*)
1451     # ranlib from Darwin requires the -c flag to look at common symbols.
1452     extra_ranlibflags_for_target=" -c"
1453     ;;
1454   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1455     target_makefile_frag="config/mt-wince"
1456     ;;
1457 esac
1458
1459 alphaieee_frag=/dev/null
1460 case $target in
1461   alpha*-*-*)
1462     # This just makes sure to use the -mieee option to build target libs.
1463     # This should probably be set individually by each library.
1464     alphaieee_frag="config/mt-alphaieee"
1465     ;;
1466 esac
1467
1468 # If --enable-target-optspace always use -Os instead of -O2 to build
1469 # the target libraries, similarly if it is not specified, use -Os
1470 # on selected platforms.
1471 ospace_frag=/dev/null
1472 case "${enable_target_optspace}:${target}" in
1473   yes:*)
1474     ospace_frag="config/mt-ospace"
1475     ;;
1476   :d30v-*)
1477     ospace_frag="config/mt-d30v"
1478     ;;
1479   :m32r-* | :d10v-* | :fr30-*)
1480     ospace_frag="config/mt-ospace"
1481     ;;
1482   no:* | :*)
1483     ;;
1484   *)
1485     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1486     ;;
1487 esac
1488
1489 # Set with_gnu_as and with_gnu_ld as appropriate.
1490 #
1491 # This is done by determining whether or not the appropriate directory
1492 # is available, and by checking whether or not specific configurations
1493 # have requested that this magic not happen.
1494 #
1495 # The command line options always override the explicit settings in
1496 # configure.in, and the settings in configure.in override this magic.
1497 #
1498 # If the default for a toolchain is to use GNU as and ld, and you don't
1499 # want to do that, then you should use the --without-gnu-as and
1500 # --without-gnu-ld options for the configure script.
1501
1502 if test x${use_gnu_as} = x &&
1503    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1504   with_gnu_as=yes
1505   extra_host_args="$extra_host_args --with-gnu-as"
1506 fi
1507
1508 if test x${use_gnu_ld} = x &&
1509    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1510   with_gnu_ld=yes
1511   extra_host_args="$extra_host_args --with-gnu-ld"
1512 fi
1513
1514 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1515 # can detect this case.
1516
1517 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1518   with_newlib=yes
1519   extra_host_args="$extra_host_args --with-newlib"
1520 fi
1521
1522 if test x${with_libbanshee} = xyes && echo " ${configdirs} " | grep " libbanshee " >/dev/null 2>&1; then
1523   extra_host_args="$extra_host_args --with-libbanshee"
1524 fi
1525
1526 # Default to using --with-stabs for certain targets.
1527 if test x${with_stabs} = x ; then
1528   case "${target}" in
1529   mips*-*-irix[[56]]*)
1530     ;;
1531   mips*-*-* | alpha*-*-osf*)
1532     with_stabs=yes;
1533     extra_host_args="${extra_host_args} --with-stabs"
1534     ;;
1535   esac
1536 fi
1537
1538 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1539 # them automatically.
1540 case "${host}" in
1541   hppa*64*-*-hpux11*)
1542     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1543     ;;
1544 esac
1545
1546 # Some systems (e.g., one of the i386-aix systems the gas testers are
1547 # using) don't handle "\$" correctly, so don't use it here.
1548 tooldir='${exec_prefix}'/${target_alias}
1549 build_tooldir=${tooldir}
1550
1551 # Generate default definitions for YACC, M4, LEX and other programs that run
1552 # on the build machine.  These are used if the Makefile can't locate these
1553 # programs in objdir.
1554 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1555 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1556 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1557 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1558 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1559 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1560 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1561
1562 # Create a .gdbinit file which runs the one in srcdir
1563 # and tells GDB to look there for source files.
1564
1565 if test -r ${srcdir}/.gdbinit ; then
1566   case ${srcdir} in
1567     .) ;;
1568     *) cat > ./.gdbinit <<EOF
1569 # ${NO_EDIT}
1570 dir ${srcdir}
1571 dir .
1572 source ${srcdir}/.gdbinit
1573 EOF
1574     ;;
1575   esac
1576 fi
1577
1578 # Make sure that the compiler is able to generate an executable.  If it
1579 # can't, we are probably in trouble.  We don't care whether we can run the
1580 # executable--we might be using a cross compiler--we only care whether it
1581 # can be created.  At this point the main configure script has set CC.
1582 we_are_ok=no
1583 echo "int main () { return 0; }" > conftest.c
1584 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1585 if test $? = 0 ; then
1586   if test -s conftest || test -s conftest.exe ; then
1587     we_are_ok=yes
1588   fi
1589 fi
1590 case $we_are_ok in
1591   no)
1592     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1593     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1594     rm -f conftest*
1595     exit 1
1596     ;;
1597 esac
1598 rm -f conftest*
1599
1600 # The Solaris /usr/ucb/cc compiler does not appear to work.
1601 case "${host}" in
1602   sparc-sun-solaris2*)
1603       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1604       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1605           could_use=
1606           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1607           if test -d /opt/cygnus/bin ; then
1608               if test "$could_use" = "" ; then
1609                   could_use="/opt/cygnus/bin"
1610               else
1611                   could_use="$could_use or /opt/cygnus/bin"
1612               fi
1613           fi
1614         if test "$could_use" = "" ; then
1615             echo "Warning: compilation may fail because you're using"
1616             echo "/usr/ucb/cc.  You should change your PATH or CC "
1617             echo "variable and rerun configure."
1618         else
1619             echo "Warning: compilation may fail because you're using"
1620             echo "/usr/ucb/cc, when you should use the C compiler from"
1621             echo "$could_use.  You should change your"
1622             echo "PATH or CC variable and rerun configure."
1623         fi
1624       fi
1625   ;;
1626 esac
1627
1628 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1629 # binutils tools will find libbfd.so.
1630 case "${enable_shared}" in
1631   no | "") SET_LIB_PATH= ;;
1632   *) SET_LIB_PATH="\$(REALLY_SET_LIB_PATH)" ;;
1633 esac
1634
1635 case "${host}" in
1636   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1637   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1638 esac
1639
1640 # Record target_configdirs and the configure arguments for target and
1641 # build configuration in Makefile.
1642 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1643 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1644
1645 # Determine whether gdb needs tk/tcl or not.
1646 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1647 # and in that case we want gdb to be built without tk.  Ugh!
1648 # In fact I believe gdb is the *only* package directly dependent on tk,
1649 # so we should be able to put the 'maybe's in unconditionally and
1650 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1651 # 100% sure that that's safe though.
1652
1653 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-tix maybe-all-libgui"
1654 case "$enable_gdbtk" in
1655   no)
1656     GDB_TK="" ;;
1657   yes)
1658     GDB_TK="${gdb_tk}" ;;
1659   *)
1660     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1661     # distro.  Eventually someone will fix this and move Insight, nee
1662     # gdbtk to a separate directory.
1663     if test -d ${srcdir}/gdb/gdbtk ; then
1664       GDB_TK="${gdb_tk}"
1665     else
1666       GDB_TK=""
1667     fi
1668     ;;
1669 esac
1670
1671 # Strip out unwanted targets.
1672
1673 # While at that, we remove Makefiles if we were started for recursive
1674 # configuration, so that the top-level Makefile reconfigures them,
1675 # like we used to do when configure itself was recursive.
1676
1677 # Loop over modules.  $extrasub must be used with care, limiting as
1678 # much as possible the usage of range addresses.  That's because autoconf
1679 # splits the sed script to overcome limits in the number of commands,
1680 # and relying on carefully-timed sed passes may turn out to be very hard
1681 # to maintain later.  In this particular case, you just have to be careful
1682 # not to nest @if/@endif pairs, because configure will not warn you at all.
1683
1684 AC_ARG_ENABLE([bootstrap],
1685 [  --enable-bootstrap     Enable bootstrapping [no]],,
1686 enable_bootstrap=no)
1687 if test -d ${srcdir}/gcc; then
1688   case "$host:$target:$enable_bootstrap" in
1689     $build:$build:yes | *:no) ;;
1690     *:yes) AC_MSG_ERROR([cannot bootstrap a cross-compiler]) ;;
1691     *) AC_MSG_ERROR([invalid option for --enable-bootstrap]) ;;
1692   esac
1693 else
1694   if test $enable_bootstrap = yes; then
1695     AC_MSG_ERROR([cannot bootstrap without a compiler])
1696   fi
1697 fi
1698
1699 case "$enable_bootstrap" in
1700   yes)
1701     default_target=bootstrap
1702     bootstrap_suffix=bootstrap ;;
1703   no)
1704     default_target=all
1705     bootstrap_suffix=no-bootstrap ;;
1706 esac
1707 AC_SUBST(default_target)
1708
1709 for module in ${build_configdirs} ; do
1710   if test -z "${no_recursion}" \
1711      && test -f ${build_subdir}/${module}/Makefile; then
1712     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1713     rm -f ${build_subdir}/${module}/Makefile
1714   fi
1715   extrasub="$extrasub
1716 /^@if build-$module\$/d
1717 /^@endif build-$module\$/d
1718 /^@if build-$module-$bootstrap_suffix\$/d
1719 /^@endif build-$module-$bootstrap_suffix\$/d"
1720 done
1721 for module in ${configdirs} ; do
1722   if test -z "${no_recursion}" \
1723      && test -f ${module}/Makefile; then
1724     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1725     rm -f ${module}/Makefile
1726   fi
1727   extrasub="$extrasub
1728 /^@if $module\$/d
1729 /^@endif $module\$/d
1730 /^@if $module-$bootstrap_suffix\$/d
1731 /^@endif $module-$bootstrap_suffix\$/d"
1732 done
1733 for module in ${target_configdirs} ; do
1734   if test -z "${no_recursion}" \
1735      && test -f ${target_subdir}/${module}/Makefile; then
1736     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1737     rm -f ${target_subdir}/${module}/Makefile
1738   fi
1739   extrasub="$extrasub
1740 /^@if target-$module\$/d
1741 /^@endif target-$module\$/d
1742 /^@if target-$module-$bootstrap_suffix\$/d
1743 /^@endif target-$module-$bootstrap_suffix\$/d"
1744 done
1745
1746 extrasub="$extrasub
1747 /^@if /,/^@endif /d"
1748
1749 # Create the serialization dependencies.  This uses a temporary file.
1750
1751 AC_ARG_ENABLE([serial-configure],
1752 [  --enable-serial-[{host,target,build}-]configure
1753                           Force sequential configuration of
1754                           sub-packages for the host, target or build
1755                           machine, or all sub-packages])
1756
1757 case ${enable_serial_configure} in
1758   yes)
1759     enable_serial_build_configure=yes
1760     enable_serial_host_configure=yes
1761     enable_serial_target_configure=yes
1762     ;;
1763 esac
1764
1765 # These force 'configure's to be done one at a time, to avoid problems
1766 # with contention over a shared config.cache.
1767 rm -f serdep.tmp
1768 echo '# serdep.tmp' > serdep.tmp
1769 olditem=
1770 test "x${enable_serial_build_configure}" = xyes &&
1771 for item in ${build_configdirs} ; do
1772   case ${olditem} in
1773     "") ;;
1774     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1775   esac
1776   olditem=${item}
1777 done
1778 olditem=
1779 test "x${enable_serial_host_configure}" = xyes &&
1780 for item in ${configdirs} ; do
1781   case ${olditem} in
1782     "") ;;
1783     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1784   esac
1785   olditem=${item}
1786 done
1787 olditem=
1788 test "x${enable_serial_target_configure}" = xyes &&
1789 for item in ${target_configdirs} ; do
1790   case ${olditem} in
1791     "") ;;
1792     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1793   esac
1794   olditem=${item}
1795 done
1796 serialization_dependencies=serdep.tmp
1797 AC_SUBST_FILE(serialization_dependencies)
1798
1799 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1800 # target and nonopt.  These are the ones we might not want to pass
1801 # down to subconfigures.  Also strip program-prefix, program-suffix,
1802 # and program-transform-name, so that we can pass down a consistent
1803 # program-transform-name.  If autoconf has put single quotes around
1804 # any of these arguments (because they contain shell metacharacters)
1805 # then this will fail; in practice this only happens for
1806 # --program-transform-name, so be sure to override --program-transform-name
1807 # at the end of the argument list.
1808 # These will be expanded by make, so quote '$'.
1809 cat <<\EOF_SED > conftestsed
1810 s/ --no[[^ ]]*/ /g
1811 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1812 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1813 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1814 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1815 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1816 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1817 s/ -cache-file[[= ]][[^ ]]*//g
1818 s/ -srcdir[[= ]][[^ ]]*//g
1819 s/ -host[[= ]][[^ ]]*//g
1820 s/ -build[[= ]][[^ ]]*//g
1821 s/ -target[[= ]][[^ ]]*//g
1822 s/ -program-prefix[[= ]][[^ ]]*//g
1823 s/ -program-suffix[[= ]][[^ ]]*//g
1824 s/ -program-transform-name[[= ]][[^ ]]*//g
1825 s/ [[^' -][^ ]*] / /
1826 s/^ *//;s/ *$//
1827 s,\$,$$,g
1828 EOF_SED
1829 sed -f conftestsed <<EOF_SED > conftestsed.out
1830  ${ac_configure_args}
1831 EOF_SED
1832 baseargs=`cat conftestsed.out`
1833 rm -f conftestsed conftestsed.out
1834
1835 # Add in --program-transform-name, after --program-prefix and
1836 # --program-suffix have been applied to it.  Autoconf has already
1837 # doubled dollar signs and backslashes in program_transform_name; we want
1838 # the backslashes un-doubled, and then the entire thing wrapped in single
1839 # quotes, because this will be expanded first by make and then by the shell.
1840 # Also, because we want to override the logic in subdir configure scripts to
1841 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1842 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1843 ${program_transform_name}
1844 EOF_SED
1845 gcc_transform_name=`cat conftestsed.out`
1846 rm -f conftestsed.out
1847 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1848
1849 # For the build-side libraries, we just need to pretend we're native,
1850 # and not use the same cache file.  Multilibs are neither needed nor
1851 # desired.
1852 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} ${baseargs}"
1853
1854 # For host modules, accept cache file option, or specification as blank.
1855 case "${cache_file}" in
1856 "") # empty
1857   cache_file_option="" ;;
1858 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1859   cache_file_option="--cache-file=${cache_file}" ;;
1860 *) # relative path
1861   cache_file_option="--cache-file=../${cache_file}" ;;
1862 esac
1863
1864 # Host dirs don't like to share a cache file either, horribly enough.
1865 # This seems to be due to autoconf 2.5x stupidity.
1866 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1867
1868 target_configargs=${baseargs}
1869
1870 # Passing a --with-cross-host argument lets the target libraries know
1871 # whether they are being built with a cross-compiler or being built
1872 # native.  However, it would be better to use other mechanisms to make the
1873 # sorts of decisions they want to make on this basis.  Please consider
1874 # this option to be deprecated.  FIXME.
1875 if test x${is_cross_compiler} = xyes ; then
1876   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1877 fi
1878
1879 # Default to --enable-multilib.
1880 if test x${enable_multilib} = x ; then
1881   target_configargs="--enable-multilib ${target_configargs}"
1882 fi
1883
1884 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1885 # changed from the earlier setting of with_newlib.
1886 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1887   target_configargs="--with-newlib ${target_configargs}"
1888 fi
1889
1890 # Different target subdirs use different values of certain variables
1891 # (notably CXX).  Worse, multilibs use *lots* of different values.
1892 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1893 # it doesn't automatically accept command-line overrides of them.
1894 # This means it's not safe for target subdirs to share a cache file,
1895 # which is disgusting, but there you have it.  Hopefully this can be
1896 # fixed in future.  It's still worthwhile to use a cache file for each
1897 # directory.  I think.
1898
1899 # Pass the appropriate --host, --build, and --cache-file arguments.
1900 target_configargs="--cache-file=./config.cache --host=${target_alias} --build=${build_alias} ${target_configargs}"
1901
1902 # provide a proper gxx_include_dir.
1903 # Note, if you change the default, make sure to fix both here and in
1904 # the gcc and libstdc++-v3 subdirectories.
1905 # Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
1906 case "${with_gxx_include_dir}" in
1907   yes)
1908     AC_MSG_ERROR([--with-gxx-include-dir=[[dir]] requires a directory])
1909     ;;
1910   no | "")
1911     case "${enable_version_specific_runtime_libs}" in
1912       yes) gxx_include_dir='${libsubdir}/include/c++' ;;
1913       *)
1914         . ${srcdir}/config.if
1915         gxx_include_dir='${prefix}/include/'${libstdcxx_incdir} ;;
1916     esac ;;
1917   *) gxx_include_dir=${with_gxx_include_dir} ;;
1918 esac
1919
1920 FLAGS_FOR_TARGET=
1921 case " $target_configdirs " in
1922  *" newlib "*)
1923   case " $target_configargs " in
1924   *" --with-newlib "*)
1925    case "$target" in
1926    *-cygwin*)
1927      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 $$s/winsup/w32api/include' ;;
1928    esac
1929
1930    # If we're not building GCC, don't discard standard headers.
1931    if test -d ${srcdir}/gcc; then
1932      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1933
1934      if test "${build}" != "${host}"; then
1935        # On Canadian crosses, CC_FOR_TARGET will have already been set
1936        # by `configure', so we won't have an opportunity to add -Bgcc/
1937        # to it.  This is right: we don't want to search that directory
1938        # for binaries, but we want the header files in there, so add
1939        # them explicitly.
1940        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
1941
1942        # Someone might think of using the pre-installed headers on
1943        # Canadian crosses, in case the installed compiler is not fully
1944        # compatible with the compiler being built.  In this case, it
1945        # would be better to flag an error than risking having
1946        # incompatible object files being constructed.  We can't
1947        # guarantee that an error will be flagged, but let's hope the
1948        # compiler will do it, when presented with incompatible header
1949        # files.
1950      fi
1951    fi
1952
1953    case "${target}-${is_cross_compiler}" in
1954    i[[3456789]]86-*-linux*-no)
1955       # Here host == target, so we don't need to build gcc,
1956       # so we don't want to discard standard headers.
1957       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
1958       ;;
1959    *)
1960       # If we're building newlib, use its generic headers last, but search
1961       # for any libc-related directories first (so make it the last -B
1962       # switch).
1963       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1964       ;;
1965    esac
1966    ;;
1967   esac
1968   ;;
1969 esac
1970
1971 # Allow the user to override the flags for
1972 # our build compiler if desired.
1973 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
1974
1975 # On Canadian crosses, we'll be searching the right directories for
1976 # the previously-installed cross compiler, so don't bother to add
1977 # flags for directories within the install tree of the compiler
1978 # being built; programs in there won't even run.
1979 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
1980   # Search for pre-installed headers if nothing else fits.
1981   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
1982 fi
1983
1984 if test "x${use_gnu_ld}" = x &&
1985    echo " ${configdirs} " | grep " ld " > /dev/null ; then
1986   # Arrange for us to find uninstalled linker scripts.
1987   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
1988 fi
1989
1990 if test "x${CC_FOR_TARGET+set}" = xset; then
1991   :
1992 elif test -d ${srcdir}/gcc; then
1993   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
1994 elif test "$host" = "$target"; then
1995   CC_FOR_TARGET='$(CC)'
1996 else
1997   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
1998 fi
1999 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2000
2001 if test "x${GCJ_FOR_TARGET+set}" = xset; then
2002   :
2003 elif test -d ${srcdir}/gcc; then
2004   GCJ_FOR_TARGET='$$r/gcc/gcj -B$$r/gcc/'
2005 elif test "$host" = "$target"; then
2006   GCJ_FOR_TARGET='gcj'
2007 else
2008   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
2009 fi
2010 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2011
2012 if test "x${GFORTRAN_FOR_TARGET+set}" = xset; then
2013   :
2014 elif test -d ${srcdir}/gcc; then
2015   GFORTRAN_FOR_TARGET='$$r/gcc/gfortran -B$$r/gcc/'
2016 elif test "$host" = "$target"; then
2017   GFORTRAN_FOR_TARGET='gfortran'
2018 else
2019   GFORTRAN_FOR_TARGET=`echo gfortran | sed "${program_transform_name}"`
2020 fi
2021 case $GFORTRAN_FOR_TARGET in
2022 *' $(FLAGS_FOR_TARGET)') ;;
2023 *) GFORTRAN_FOR_TARGET=$GFORTRAN_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
2024 esac
2025
2026 # Don't use libstdc++-v3's flags to configure/build itself.
2027 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'
2028 raw_libstdcxx_flags='-L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2029
2030 if test "x${CXX_FOR_TARGET+set}" = xset; then
2031   if test "x${RAW_CXX_FOR_TARGET+set}" != xset; then
2032     RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2033   fi
2034 elif test -d ${srcdir}/gcc; then
2035   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
2036   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
2037   # default whereas gcc does not.
2038   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
2039   # all other cases.
2040   CXX_FOR_TARGET='$$r/gcc/g++ -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
2041   RAW_CXX_FOR_TARGET='$$r/gcc/xgcc -shared-libgcc -B$$r/gcc/ -nostdinc++ '$raw_libstdcxx_flags
2042 elif test "$host" = "$target"; then
2043   CXX_FOR_TARGET='$(CXX)'
2044   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2045 else
2046   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
2047   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2048 fi
2049 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2050 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2051
2052 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2053 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2054
2055 # We want to defer the evaluation of `cmd`s and shell variables in
2056 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
2057 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
2058 # quotes, but we still have to duplicate `$'s so that shell variables
2059 # can be expanded by the nested make as shell variables, not as make
2060 # macros.
2061 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2062 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2063
2064 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
2065 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
2066 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
2067 GFORTRAN_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GFORTRAN_FOR_TARGET}"
2068 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
2069 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
2070 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
2071 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
2072
2073 # Makefile fragments.
2074 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2075 do
2076   eval fragval=\$$frag
2077   if test $fragval != /dev/null; then
2078     eval $frag=${srcdir}/$fragval
2079   fi
2080 done
2081 AC_SUBST_FILE(host_makefile_frag)
2082 AC_SUBST_FILE(target_makefile_frag)
2083 AC_SUBST_FILE(alphaieee_frag)
2084 AC_SUBST_FILE(ospace_frag)
2085
2086 # Miscellanea: directories, flags, etc.
2087 AC_SUBST(SET_LIB_PATH)
2088 AC_SUBST(RPATH_ENVVAR)
2089 AC_SUBST(BUILD_DIR_PREFIX)
2090 AC_SUBST(BUILD_PREFIX)
2091 AC_SUBST(BUILD_PREFIX_1)
2092 AC_SUBST(gcc_version_trigger)
2093 AC_SUBST(gcc_version)
2094 AC_SUBST(tooldir)
2095 AC_SUBST(build_tooldir)
2096 AC_SUBST(GDB_TK)
2097 AC_SUBST(gxx_include_dir)
2098 AC_SUBST(libstdcxx_incdir)
2099
2100 # Build module lists & subconfigure args.
2101 AC_SUBST(build_configargs)
2102 AC_SUBST(build_configdirs)
2103
2104 # Host module lists & subconfigure args.
2105 AC_SUBST(host_configargs)
2106 AC_SUBST(configdirs)
2107
2108 # Target module lists & subconfigure args.
2109 AC_SUBST(target_configargs)
2110 AC_SUBST(target_configdirs)
2111
2112 # Build tools.
2113 AC_SUBST(CC_FOR_BUILD)
2114 AC_SUBST(config_shell)
2115
2116 # Host tools.
2117 NCN_STRICT_CHECK_TOOL(AR, ar)
2118 NCN_STRICT_CHECK_TOOL(AS, as)
2119 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2120 NCN_STRICT_CHECK_TOOL(LD, ld)
2121 NCN_STRICT_CHECK_TOOL(NM, nm)
2122 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2123 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2124 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2125 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2126 AC_SUBST(CC)
2127 AC_SUBST(CXX)
2128 AC_SUBST(CFLAGS)
2129 AC_SUBST(CFLAGS_FOR_BUILD)
2130 AC_SUBST(CXXFLAGS)
2131
2132 # Target tools.
2133 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AR_FOR_TARGET, ar)
2134 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AS_FOR_TARGET, as)
2135 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_DLLTOOL_FOR_TARGET, dlltool)
2136 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_LD_FOR_TARGET, ld)
2137 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_NM_FOR_TARGET, nm)
2138 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_RANLIB_FOR_TARGET, ranlib, :)
2139 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_WINDRES_FOR_TARGET, windres)
2140
2141 AC_SUBST(GCC_FOR_TARGET)
2142 AC_SUBST(FLAGS_FOR_TARGET)
2143 AC_SUBST(CC_FOR_TARGET)
2144 AC_SUBST(GCJ_FOR_TARGET)
2145 AC_SUBST(GFORTRAN_FOR_TARGET)
2146 AC_SUBST(CXX_FOR_TARGET)
2147 AC_SUBST(RAW_CXX_FOR_TARGET)
2148 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2149 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2150
2151 # Fix up target tools.
2152 if test "x${build}" = "x${host}" ; then
2153   # In this case, the newly built tools can and should be used,
2154   # so we override the results of the autoconf tests.
2155   # This should really only happen when the tools are actually being built,
2156   # but that's a further refinement.  The new build scheme, where
2157   # tools are built into a structure paralleling where they're installed,
2158   # should also eliminate all of this cleanly.
2159   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2160   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2161   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2162   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2163   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2164   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2165   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2166 else
2167   # Just use the ones we found.
2168   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2169   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2170   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2171   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2172   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2173   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2174   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2175 fi
2176 AC_SUBST(AR_FOR_TARGET)
2177 AC_SUBST(AS_FOR_TARGET)
2178 AC_SUBST(DLLTOOL_FOR_TARGET)
2179 AC_SUBST(LD_FOR_TARGET)
2180 AC_SUBST(NM_FOR_TARGET)
2181 AC_SUBST(RANLIB_FOR_TARGET)
2182 AC_SUBST(WINDRES_FOR_TARGET)
2183
2184 # Certain tools may need extra flags.
2185 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2186 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2187 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2188
2189 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2190 AC_ARG_ENABLE(maintainer-mode,
2191 [  --enable-maintainer-mode enable make rules and dependencies not useful
2192                           (and sometimes confusing) to the casual installer],
2193       USE_MAINTAINER_MODE=$enableval,
2194       USE_MAINTAINER_MODE=no)
2195 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2196 AC_SUBST(MAINTAINER_MODE_TRUE)
2197 AC_SUBST(MAINTAINER_MODE_FALSE)
2198 if test "$USE_MAINTAINER_MODE" = yes; then
2199   MAINTAINER_MODE_TRUE=
2200   MAINTAINER_MODE_FALSE='#'
2201 else
2202   MAINTAINER_MODE_TRUE='#'
2203   MAINTAINER_MODE_FALSE=
2204 fi
2205 MAINT=$MAINTAINER_MODE_TRUE
2206 AC_SUBST(MAINT)dnl
2207
2208 # ---------------------
2209 # GCC bootstrap support
2210 # ---------------------
2211
2212 # Stage specific cflags for build.
2213 stage1_cflags="-g"
2214 case $build in
2215   vax-*-*)
2216     case ${GCC} in
2217       yes) stage1_cflags="-g -Wa,-J" ;;
2218       *) stage1_cflags="-g -J" ;;
2219     esac ;;
2220   powerpc-*-darwin*)
2221     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2222     # sources; use -no-cpp-precomp to get to GNU cpp.
2223     # Apple's GCC has bugs in designated initializer handling, so disable
2224     # that too.
2225     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2226     ;;
2227 esac
2228 AC_SUBST(stage1_cflags)
2229
2230 # It makes debugging easier if we create as symlinks the stage directories
2231 # gcc for stageN-gcc and stage-prev for stage(N-1).  In case this is not
2232 # possible, however, we can resort to mv.
2233 AC_CACHE_CHECK([if symbolic links between directories work],
2234 [gcc_cv_prog_ln_s_dir],
2235 [if test "${LN_S}" = "ln -s" \
2236    && mkdir confdir.s1 \
2237    && ln -s confdir.s1 confdir.s2 \
2238    && echo timestamp1 > confdir.s1/conftest.1 \
2239    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2240    && echo timestamp2 > confdir.s2/conftest.2 \
2241    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2242    && rm -f confdir.s2; then
2243   gcc_cv_prog_ln_s_dir=yes
2244 else
2245   gcc_cv_prog_ln_s_dir=yes
2246 fi
2247 rm -rf confdir.s1 confdir.s2])
2248
2249 case ${gcc_cv_prog_ln_s_dir} in
2250   yes)
2251     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2252     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2253   *)
2254     CREATE_LINK_TO_DIR='mv $$1 $$2'
2255     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2256 esac
2257 AC_SUBST(CREATE_LINK_TO_DIR)
2258 AC_SUBST(UNDO_LINK_TO_DIR)
2259
2260 # Enable -Werror in bootstrap stage2 and later.
2261 # Change the default to "no" on release branches.
2262 AC_ARG_ENABLE(werror,
2263 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2264 [enable_werror=yes])
2265 case ${enable_werror} in
2266   yes) stage2_werror_flag="--enable-werror-always" ;;
2267   *) stage2_werror_flag="" ;;
2268 esac
2269 AC_SUBST(stage2_werror_flag)
2270
2271 AC_OUTPUT(Makefile)