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