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