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 build-fixincludes"
 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 libgui zlib 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 build_configdirs=`echo ${build_libs} ${build_tools}`
 187
 188 ################################################################################
 189
 190 srcname="gnu development package"
 191
 192 # This gets set non-empty for some net releases of packages.
 193 appdirs=""
 194
 195 # Define is_cross_compiler to save on calls to 'test'.
 196 is_cross_compiler=
 197 if test x"${host}" = x"${target}" ; then
 198   is_cross_compiler=no
 199 else
 200   is_cross_compiler=yes
 201 fi
 202
 203 # Find the build and target subdir names.
 204 GCC_TOPLEV_SUBDIRS
 205
 206 # Skipdirs are removed silently.
 207 skipdirs=
 208 # Noconfigdirs are removed loudly.
 209 noconfigdirs=""
 210
 211 use_gnu_ld=
 212 # Make sure we don't let GNU ld be added if we didn't want it.
 213 if test x$with_gnu_ld = xno ; then
 214   use_gnu_ld=no
 215   noconfigdirs="$noconfigdirs ld"
 216 fi
 217
 218 use_gnu_as=
 219 # Make sure we don't let GNU as be added if we didn't want it.
 220 if test x$with_gnu_as = xno ; then
 221   use_gnu_as=no
 222   noconfigdirs="$noconfigdirs gas"
 223 fi
 224
 225 # some tools are so dependent upon X11 that if we're not building with X,
 226 # it's not even worth trying to configure, much less build, that tool.
 227
 228 case ${with_x} in
 229   yes | "") ;; # the default value for this tree is that X11 is available
 230   no)
 231     skipdirs="${skipdirs} tk itcl libgui"
 232     # We won't be able to build gdbtk without X.
 233     enable_gdbtk=no
 234     ;;
 235   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 236 esac
 237
 238 # Some tools are only suitable for building in a "native" situation.
 239 # Remove these if host!=target.
 240 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"
 241
 242 # Similarly, some are only suitable for cross toolchains.
 243 # Remove these if host=target.
 244 cross_only="target-libgloss target-newlib target-opcodes"
 245
 246 case $is_cross_compiler in
 247   no) skipdirs="${skipdirs} ${cross_only}" ;;
 248   yes) skipdirs="${skipdirs} ${native_only}" ;;
 249 esac
 250
 251 # If both --with-headers and --with-libs are specified, default to
 252 # --without-newlib.
 253 if test x"${with_headers}" != x && test x"${with_headers} != xno \
 254    && test x"${with_libs}" != x && test x"${with_libs} != xno ; then
 255   if test x"${with_newlib}" = x ; then
 256     with_newlib=no
 257   fi
 258 fi
 259
 260 # Recognize --with-newlib/--without-newlib.
 261 case ${with_newlib} in
 262   no) skipdirs="${skipdirs} target-newlib" ;;
 263   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 264 esac
 265
 266 # Configure extra directories which are host specific
 267
 268 case "${host}" in
 269   *-cygwin*)
 270     configdirs="$configdirs libtermcap" ;;
 271 esac
 272
 273 # Remove more programs from consideration, based on the host or
 274 # target this usually means that a port of the program doesn't
 275 # exist yet.
 276
 277 case "${host}" in
 278   hppa*64*-*-*)
 279     noconfigdirs="$noconfigdirs byacc"
 280     ;;
 281   i[[3456789]]86-*-vsta)
 282     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 283     ;;
 284   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 285     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 286     ;;
 287   i[[3456789]]86-*-mingw32*)
 288     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 289     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 290     ;;
 291   i[[3456789]]86-*-beos*)
 292     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 293     ;;
 294   *-*-cygwin*)
 295     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 296     ;;
 297   *-*-netbsd*)
 298     noconfigdirs="$noconfigdirs rcs"
 299     ;;
 300   ppc*-*-pe)
 301     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 302     ;;
 303   powerpc-*-beos*)
 304     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 305     ;;
 306   *-*-darwin*)
 307     noconfigdirs="$noconfigdirs tk itcl libgui"
 308     ;;
 309 esac
 310
 311
 312 AC_ARG_ENABLE(libada,
 313 [  --enable-libada        Builds libada directory],
 314 ENABLE_LIBADA=$enableval,
 315 ENABLE_LIBADA=yes)
 316 if test "${ENABLE_LIBADA}" != "yes" ; then
 317   noconfigdirs="$noconfigdirs target-libada"
 318 fi
 319
 320 # Save it here so that, even in case of --enable-libgcj, if the Java
 321 # front-end isn't enabled, we still get libgcj disabled.
 322 libgcj_saved=$libgcj
 323 case $enable_libgcj in
 324 yes)
 325   # If we reset it here, it won't get added to noconfigdirs in the
 326   # target-specific build rules, so it will be forcibly enabled
 327   # (unless the Java language itself isn't enabled).
 328   libgcj=
 329   ;;
 330 no)
 331   # Make sure we get it printed in the list of not supported target libs.
 332   noconfigdirs="$noconfigdirs ${libgcj}"
 333   ;;
 334 esac
 335
 336
 337 # Allow --disable-libmudflap to exclude target-libmudflap
 338 case $enable_libmudflap in
 339 yes)
 340     ;;
 341 no)
 342     noconfigdirs="$noconfigdirs target-libmudflap"
 343     ;;
 344 "")
 345     case "${target}" in
 346     *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
 347         # Enable libmudflap by default in GNU and friends.
 348         ;;
 349     *-*-freebsd*)
 350         # Enable libmudflap by default in FreeBSD.
 351         ;;
 352     *)
 353         # Disable it by default everywhere else.
 354         noconfigdirs="$noconfigdirs target-libmudflap"
 355         ;;
 356     esac
 357 esac
 358
 359
 360 case "${target}" in
 361   *-*-chorusos)
 362     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 363     ;;
 364   powerpc-*-darwin*)
 365     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 366     noconfigdirs="$noconfigdirs target-libobjc"
 367     ;;
 368   *-*-darwin*)
 369     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 370     noconfigdirs="$noconfigdirs target-libobjc ${libgcj}"
 371     ;;
 372   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 373     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 374     ;;
 375   *-*-freebsd*)
 376     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 377     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 378         && test -f /usr/local/include/gmp.h; then
 379       with_gmp=/usr/local
 380     fi
 381
 382     # Skip some stuff that's unsupported on some FreeBSD configurations.
 383     case "${target}" in
 384       i*86-*-*) ;;
 385       alpha*-*-*) ;;
 386       *)
 387         noconfigdirs="$noconfigdirs ${libgcj}"
 388         ;;
 389     esac
 390     ;;
 391   *-*-kaos*)
 392     # Remove unsupported stuff on all kaOS configurations.
 393     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 394     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 395     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 396     noconfigdirs="$noconfigdirs target-libgloss"
 397     ;;
 398   *-*-netbsd*)
 399     # Skip some stuff on all NetBSD configurations.
 400     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 401
 402     # Skip some stuff that's unsupported on some NetBSD configurations.
 403     case "${target}" in
 404       i*86-*-netbsdelf*) ;;
 405       arm*-*-netbsdelf*) ;;
 406       *)
 407         noconfigdirs="$noconfigdirs ${libgcj}"
 408         ;;
 409     esac
 410     ;;
 411   *-*-netware*)
 412     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 413     ;;
 414   *-*-rtems*)
 415     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 416     ;;
 417   *-*-uclinux*)
 418     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 419     ;;
 420   *-*-vxworks*)
 421     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}"
 422     ;;
 423   alpha*-dec-osf*)
 424     # ld works, but does not support shared libraries.
 425     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 426     # gas doesn't generate exception information.
 427     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 428     ;;
 429   alpha*-*-*vms*)
 430     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 431     ;;
 432   alpha*-*-linux*)
 433     # newlib is not 64 bit ready
 434     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 435     ;;
 436   alpha*-*-*)
 437     # newlib is not 64 bit ready
 438     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 439     ;;
 440   am33_2.0-*-linux*)
 441     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 442     ;;
 443   sh-*-linux*)
 444     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 445     ;;
 446   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 447     noconfigdirs="$noconfigdirs ${libgcj}"
 448     noconfigdirs="$noconfigdirs target-examples"
 449     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 450     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 451     noconfigdirs="$noconfigdirs expect dejagnu"
 452     # the C++ libraries don't build on top of CE's C libraries
 453     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 454     noconfigdirs="$noconfigdirs target-newlib"
 455     case "${host}" in
 456       *-*-cygwin*) ;; # keep gdb and readline
 457       *) noconfigdirs="$noconfigdirs gdb readline"
 458          ;;
 459     esac
 460     ;;
 461   arc-*-*)
 462     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 463     ;;
 464   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 465     noconfigdirs="$noconfigdirs ${libgcj}"
 466     ;;
 467   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 468     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 469     ;;
 470   arm*-*-symbianelf*)
 471     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 472     ;;
 473   arm-*-pe*)
 474     noconfigdirs="$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-mudflap ${libgcj}"
 508     ;;
 509   d10v-*-*)
 510     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 511     ;;
 512   d30v-*-*)
 513     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 514     ;;
 515   fr30-*-elf*)
 516     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 517     ;;
 518   frv-*-*)
 519     noconfigdirs="$noconfigdirs ${libgcj}"
 520     ;;
 521   h8300*-*-*)
 522     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 523     ;;
 524   h8500-*-*)
 525     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 526     ;;
 527   hppa*64*-*-linux* | parisc*64*-*-linux*)
 528     # In this case, it's because the hppa64-linux target is for
 529     # the kernel only at this point and has no libc, and thus no
 530     # headers, crt*.o, etc., all of which are needed by these.
 531     noconfigdirs="$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 readline mmalloc libgui itcl gdb"
 552     ;;
 553   ia64*-**-hpux*)
 554     # No gdb or ld support yet.
 555     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 556     ;;
 557   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 558     noconfigdirs="$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="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 587          ;;
 588     esac
 589     ;;
 590   *-*-cygwin*)
 591     target_configdirs="$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="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 605          ;;
 606     esac
 607     ;;
 608   i[[3456789]]86-*-pe)
 609     noconfigdirs="$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 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 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 ${libgcj}"
 771     ;;
 772   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 773     noconfigdirs="$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   powerpc-*-darwin*)
 932     host_makefile_frag="config/mh-ppc-darwin"
 933     ;;
 934   *-*-lynxos*)
 935     # /bin/cc is less than useful for our purposes.  Always use GCC
 936     tentative_cc="/bin/gcc"
 937     ;;
 938   *-*-sysv4*)
 939     host_makefile_frag="config/mh-sysv4"
 940     ;;
 941 esac
 942 fi
 943
 944 # If we aren't going to be using gcc, see if we can extract a definition
 945 # of CC from the fragment.
 946 # Actually, use the 'pre-extracted' version above.
 947 if test -z "${CC}" && test "${build}" = "${host}" ; then
 948   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 949   found=
 950   for dir in $PATH; do
 951     test -z "$dir" && dir=.
 952     if test -f $dir/gcc; then
 953       found=yes
 954       break
 955     fi
 956   done
 957   IFS="$save_ifs"
 958   if test -z "${found}" && test -n "${tentative_cc}" ; then
 959     CC=$tentative_cc
 960   fi
 961 fi
 962
 963 if test "${build}" != "${host}" ; then
 964   # If we are doing a Canadian Cross, in which the host and build systems
 965   # are not the same, we set reasonable default values for the tools.
 966
 967   CC=${CC-${host_alias}-gcc}
 968   CFLAGS=${CFLAGS-"-g -O2"}
 969   CXX=${CXX-${host_alias}-c++}
 970   CXXFLAGS=${CXXFLAGS-"-g -O2"}
 971   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
 972   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
 973   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
 974   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
 975   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
 976   BUILD_PREFIX=${build_alias}-
 977   BUILD_PREFIX_1=${build_alias}-
 978
 979 else
 980   # Set reasonable default values for some tools even if not Canadian.
 981   # Of course, these are different reasonable default values, originally
 982   # specified directly in the Makefile.
 983   # We don't export, so that autoconf can do its job.
 984   # Note that all these settings are above the fragment inclusion point
 985   # in Makefile.in, so can still be overridden by fragments.
 986   # This is all going to change when we autoconfiscate...
 987
 988   CC_FOR_BUILD="\$(CC)"
 989   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
 990   BUILD_PREFIX=
 991   BUILD_PREFIX_1=loser-
 992
 993   AC_PROG_CC
 994
 995   # We must set the default linker to the linker used by gcc for the correct
 996   # operation of libtool.  If LD is not defined and we are using gcc, try to
 997   # set the LD default to the ld used by gcc.
 998   if test -z "$LD"; then
 999     if test "$GCC" = yes; then
1000       case $build in
1001       *-*-mingw*)
1002         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1003       *)
1004         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1005       esac
1006       case $gcc_prog_ld in
1007       # Accept absolute paths.
1008       [[\\/]* | [A-Za-z]:[\\/]*)]
1009         LD="$gcc_prog_ld" ;;
1010       esac
1011     fi
1012   fi
1013
1014   CXX=${CXX-"c++"}
1015   CFLAGS=${CFLAGS-"-g"}
1016   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1017 fi
1018
1019 ACX_PROG_GNAT
1020 ACX_PROG_CMP_IGNORE_INITIAL
1021
1022 # Check for GMP and MPFR
1023 gmplibs=
1024 gmpinc=
1025 have_gmp=yes
1026 # Specify a location for mpfr
1027 # check for this first so it ends up on the link line before gmp.
1028 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1029
1030 if test "x$with_mpfr_dir" != x; then
1031   gmpinc="-I$with_mpfr_dir/mpfr"
1032   gmplibs="$with_mpfr_dir/libmpfr.a"
1033 else
1034   gmplibs="-lmpfr"
1035 fi
1036
1037 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1038
1039 if test "x$with_mpfr" != x; then
1040   gmplibs="-L$with_mpfr/lib $gmplibs"
1041   gmpinc="-I$with_mpfr/include"
1042 fi
1043
1044 # Specify a location for gmp
1045 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1046
1047 if test "x$with_gmp_dir" != x; then
1048   gmpinc="$gmpinc -I$with_gmp_dir"
1049   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1050     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1051   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1052     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1053   fi
1054   # One of the later tests will catch the error if neither library is present.
1055 else
1056   gmplibs="$gmplibs -lgmp"
1057 fi
1058
1059 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1060
1061 if test "x$with_gmp" != x; then
1062   gmplibs="-L$with_gmp/lib $gmplibs"
1063   gmpinc="-I$with_gmp/include $gmpinc"
1064 fi
1065
1066 saved_CFLAGS="$CFLAGS"
1067 CFLAGS="$CFLAGS $gmpinc"
1068 # Check GMP actually works
1069 AC_MSG_CHECKING([for correct version of gmp.h])
1070 AC_TRY_COMPILE([#include "gmp.h"],[
1071 #if __GNU_MP_VERSION < 3
1072 choke me
1073 #endif
1074 ], [AC_MSG_RESULT([yes])],
1075   [AC_MSG_RESULT([no]); have_gmp=no])
1076
1077 if test x"$have_gmp" = xyes; then
1078   AC_MSG_CHECKING([for MPFR])
1079
1080   saved_LIBS="$LIBS"
1081   LIBS="$LIBS $gmplibs"
1082   AC_TRY_LINK([#include <gmp.h>
1083 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1084     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1085   LIBS="$saved_LIBS"
1086   CFLAGS="$saved_CFLAGS"
1087 fi
1088
1089 # Flags needed for both GMP and/or MPFR
1090 AC_SUBST(gmplibs)
1091 AC_SUBST(gmpinc)
1092
1093 # By default, C is the only stage 1 language.
1094 stage1_languages=c
1095 AC_SUBST(stage1_languages)
1096
1097 # Figure out what language subdirectories are present.
1098 # Look if the user specified --enable-languages="..."; if not, use
1099 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1100 # go away some day.
1101 # NB:  embedded tabs in this IF block -- do not untabify
1102 if test -d ${srcdir}/gcc; then
1103   if test x"${enable_languages+set}" != xset; then
1104     if test x"${LANGUAGES+set}" = xset; then
1105       enable_languages="${LANGUAGES}"
1106         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1107     else
1108       enable_languages=all
1109     fi
1110   else
1111     if test x"${enable_languages}" = x ||
1112        test x"${enable_languages}" = xyes;
1113        then
1114       echo configure.in: --enable-languages needs at least one language argument 1>&2
1115       exit 1
1116     fi
1117   fi
1118   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1119
1120   # First scan to see if an enabled language requires some other language.
1121   # We assume that a given config-lang.in will list all the language
1122   # front ends it requires, even if some are required indirectly.
1123   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1124     case ${lang_frag} in
1125       ..) ;;
1126       # The odd quoting in the next line works around
1127       # an apparent bug in bash 1.12 on linux.
1128       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1129       *)
1130         # From the config-lang.in, get $language, $lang_requires
1131         language=
1132         lang_requires=
1133         . ${lang_frag}
1134         for other in ${lang_requires} ; do
1135           case ,${enable_languages}, in
1136             *,$other,*) ;;
1137             *,all,*) ;;
1138             *,$language,*)
1139               echo " \`$other' language required by \`$language'; enabling" 1>&2
1140               enable_languages="${enable_languages},${other}"
1141               ;;
1142           esac
1143         done
1144         ;;
1145     esac
1146   done
1147
1148   new_enable_languages=c
1149   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1150   potential_languages=c
1151
1152   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1153     case ${lang_frag} in
1154       ..) ;;
1155       # The odd quoting in the next line works around
1156       # an apparent bug in bash 1.12 on linux.
1157       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1158       *)
1159         # From the config-lang.in, get $language, $target_libs,
1160         # $lang_dirs, $boot_language, and $build_by_default
1161         language=
1162         target_libs=
1163         lang_dirs=
1164         boot_language=
1165         build_by_default=
1166         need_gmp=
1167         . ${lang_frag}
1168         potential_languages="${potential_languages},${language}"
1169         # This is quite sensitive to the ordering of the case statement arms.
1170         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1171           *::*:*)
1172             echo "${lang_frag} doesn't set \$language." 1>&2
1173             exit 1
1174             ;;
1175           *:ada:no:*)
1176             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1177             add_this_lang=no
1178             ;;
1179           *,${language},*:*:*:*)
1180             # Language was explicitly selected; include it.
1181             add_this_lang=yes
1182             ;;
1183           *,all,*:*:*:no)
1184             # 'all' was selected, but this is not a default language
1185             # so do not include it.
1186             add_this_lang=no
1187             ;;
1188           *,all,*:*:*:*)
1189             # 'all' was selected and this is a default language; include it.
1190             add_this_lang=yes
1191             ;;
1192           *)
1193             add_this_lang=no
1194             ;;
1195         esac
1196
1197         # Disable languages that need GMP if it isn't available.
1198         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1199           *,${language},*:no:yes)
1200             # Specifically requested language; tell them.
1201             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1202             ;;
1203           *:no:yes)
1204             # Silently disable.
1205             add_this_lang=no
1206             ;;
1207         esac
1208
1209         case $add_this_lang in
1210           no)
1211             # Remove language-dependent dirs.
1212             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1213             ;;
1214           *)
1215             new_enable_languages="$new_enable_languages,$language"
1216             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1217             case ${boot_language} in
1218               yes)
1219                 # Add to (comma-separated) list of stage 1 languages.
1220                 stage1_languages="${stage1_languages},${language}"
1221                 ;;
1222             esac
1223             ;;
1224         esac
1225         ;;
1226     esac
1227   done
1228
1229   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1230   if test "x$missing_languages" != x; then
1231     AC_MSG_ERROR([
1232 The following requested languages were not found: ${missing_languages}
1233 The available languages are: ${potential_languages}])
1234   fi
1235
1236   if test "x$new_enable_languages" != "x$enable_languages"; then
1237     echo The following languages will be built: ${new_enable_languages}
1238   fi
1239   enable_languages="$new_enable_languages"
1240   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1241 fi
1242
1243 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
1244 # $target_configdirs.
1245 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1246
1247 notsupp=""
1248 for dir in . $skipdirs $noconfigdirs ; do
1249   dirname=`echo $dir | sed -e s/target-//g`
1250   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1251     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1252     if test -r $srcdir/$dirname/configure ; then
1253       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1254         true
1255       else
1256         notsupp="$notsupp $dir"
1257       fi
1258     fi
1259   fi
1260   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1261     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1262     if test -r $srcdir/$dirname/configure ; then
1263       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1264         true
1265       else
1266         notsupp="$notsupp $dir"
1267       fi
1268     fi
1269   fi
1270 done
1271
1272 # Sometimes the tools are distributed with libiberty but with no other
1273 # libraries.  In that case, we don't want to build target-libiberty.
1274 if test -n "${target_configdirs}" ; then
1275   others=
1276   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1277     if test "$i" != "libiberty" ; then
1278       if test -r $srcdir/$i/configure ; then
1279         others=yes;
1280         break;
1281       fi
1282     fi
1283   done
1284   if test -z "${others}" ; then
1285     target_configdirs=
1286   fi
1287 fi
1288
1289 # Quietly strip out all directories which aren't configurable in this tree.
1290 # This relies on all configurable subdirectories being autoconfiscated, which
1291 # is now the case.
1292 build_configdirs_all="$build_configdirs"
1293 build_configdirs=
1294 for i in ${build_configdirs_all} ; do
1295   j=`echo $i | sed -e s/build-//g`
1296   if test -f ${srcdir}/$j/configure ; then
1297     build_configdirs="${build_configdirs} $i"
1298   fi
1299 done
1300
1301 configdirs_all="$configdirs"
1302 configdirs=
1303 for i in ${configdirs_all} ; do
1304   if test -f ${srcdir}/$i/configure ; then
1305     configdirs="${configdirs} $i"
1306   fi
1307 done
1308
1309 target_configdirs_all="$target_configdirs"
1310 target_configdirs=
1311 for i in ${target_configdirs_all} ; do
1312   j=`echo $i | sed -e s/target-//g`
1313   if test -f ${srcdir}/$j/configure ; then
1314     target_configdirs="${target_configdirs} $i"
1315   fi
1316 done
1317
1318 # Produce a warning message for the subdirs we can't configure.
1319 # This isn't especially interesting in the Cygnus tree, but in the individual
1320 # FSF releases, it's important to let people know when their machine isn't
1321 # supported by the one or two programs in a package.
1322
1323 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1324   # If $appdirs is non-empty, at least one of those directories must still
1325   # be configured, or we error out.  (E.g., if the gas release supports a
1326   # specified target in some subdirs but not the gas subdir, we shouldn't
1327   # pretend that all is well.)
1328   if test -n "$appdirs" ; then
1329     for dir in $appdirs ; do
1330       if test -r $dir/Makefile.in ; then
1331         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1332           appdirs=""
1333           break
1334         fi
1335         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1336           appdirs=""
1337           break
1338         fi
1339       fi
1340     done
1341     if test -n "$appdirs" ; then
1342       echo "*** This configuration is not supported by this package." 1>&2
1343       exit 1
1344     fi
1345   fi
1346   # Okay, some application will build, or we don't care to check.  Still
1347   # notify of subdirs not getting built.
1348   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1349   echo "    ${notsupp}" 1>&2
1350   echo "    (Any other directories should still work fine.)" 1>&2
1351 fi
1352
1353 case "$host" in
1354   *msdosdjgpp*)
1355     enable_gdbtk=no ;;
1356 esac
1357
1358 copy_dirs=
1359
1360 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1361 # the named directory are copied to $(tooldir)/sys-include.
1362 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1363   if test x${is_cross_compiler} = xno ; then
1364     echo 1>&2 '***' --with-headers is only supported when cross compiling
1365     exit 1
1366   fi
1367   if test x"${with_headers}" != xyes ; then
1368     case "${exec_prefixoption}" in
1369     "") x=${prefix} ;;
1370     *) x=${exec_prefix} ;;
1371     esac
1372     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1373   fi
1374 fi
1375
1376 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1377 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1378 # are permitted.
1379 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1380   if test x${is_cross_compiler} = xno ; then
1381     echo 1>&2 '***' --with-libs is only supported when cross compiling
1382     exit 1
1383   fi
1384   if test x"${with_libs}" != xyes ; then
1385     # Copy the libraries in reverse order, so that files in the first named
1386     # library override files in subsequent libraries.
1387     case "${exec_prefixoption}" in
1388     "") x=${prefix} ;;
1389     *) x=${exec_prefix} ;;
1390     esac
1391     for l in ${with_libs}; do
1392       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1393     done
1394   fi
1395 fi
1396
1397 # Handle ${copy_dirs}
1398 set fnord ${copy_dirs}
1399 shift
1400 while test $# != 0 ; do
1401   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1402     :
1403   else
1404     echo Copying $1 to $2
1405
1406     # Use the install script to create the directory and all required
1407     # parent directories.
1408     if test -d $2 ; then
1409       :
1410     else
1411       echo >config.temp
1412       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1413     fi
1414
1415     # Copy the directory, assuming we have tar.
1416     # FIXME: Should we use B in the second tar?  Not all systems support it.
1417     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1418
1419     # It is the responsibility of the user to correctly adjust all
1420     # symlinks.  If somebody can figure out how to handle them correctly
1421     # here, feel free to add the code.
1422
1423     echo $1 > $2/COPIED
1424   fi
1425   shift; shift
1426 done
1427
1428 extra_arflags_for_target=
1429 extra_nmflags_for_target=
1430 extra_ranlibflags_for_target=
1431 target_makefile_frag=/dev/null
1432 case "${target}" in
1433   *-*-netware*)
1434     target_makefile_frag="config/mt-netware"
1435     ;;
1436   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1437     target_makefile_frag="config/mt-gnu"
1438     ;;
1439   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1440     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1441     # commands to handle both 32-bit and 64-bit objects.  These flags are
1442     # harmless if we're using GNU nm or ar.
1443     extra_arflags_for_target=" -X32_64"
1444     extra_nmflags_for_target=" -B -X32_64"
1445     ;;
1446   *-*-darwin*)
1447     # ranlib from Darwin requires the -c flag to look at common symbols.
1448     extra_ranlibflags_for_target=" -c"
1449     ;;
1450   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1451     target_makefile_frag="config/mt-wince"
1452     ;;
1453 esac
1454
1455 alphaieee_frag=/dev/null
1456 case $target in
1457   alpha*-*-*)
1458     # This just makes sure to use the -mieee option to build target libs.
1459     # This should probably be set individually by each library.
1460     alphaieee_frag="config/mt-alphaieee"
1461     ;;
1462 esac
1463
1464 # If --enable-target-optspace always use -Os instead of -O2 to build
1465 # the target libraries, similarly if it is not specified, use -Os
1466 # on selected platforms.
1467 ospace_frag=/dev/null
1468 case "${enable_target_optspace}:${target}" in
1469   yes:*)
1470     ospace_frag="config/mt-ospace"
1471     ;;
1472   :d30v-*)
1473     ospace_frag="config/mt-d30v"
1474     ;;
1475   :m32r-* | :d10v-* | :fr30-*)
1476     ospace_frag="config/mt-ospace"
1477     ;;
1478   no:* | :*)
1479     ;;
1480   *)
1481     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1482     ;;
1483 esac
1484
1485 # Set with_gnu_as and with_gnu_ld as appropriate.
1486 #
1487 # This is done by determining whether or not the appropriate directory
1488 # is available, and by checking whether or not specific configurations
1489 # have requested that this magic not happen.
1490 #
1491 # The command line options always override the explicit settings in
1492 # configure.in, and the settings in configure.in override this magic.
1493 #
1494 # If the default for a toolchain is to use GNU as and ld, and you don't
1495 # want to do that, then you should use the --without-gnu-as and
1496 # --without-gnu-ld options for the configure script.
1497
1498 if test x${use_gnu_as} = x &&
1499    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1500   with_gnu_as=yes
1501   extra_host_args="$extra_host_args --with-gnu-as"
1502 fi
1503
1504 if test x${use_gnu_ld} = x &&
1505    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1506   with_gnu_ld=yes
1507   extra_host_args="$extra_host_args --with-gnu-ld"
1508 fi
1509
1510 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1511 # can detect this case.
1512
1513 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1514   with_newlib=yes
1515   extra_host_args="$extra_host_args --with-newlib"
1516 fi
1517
1518 # Default to using --with-stabs for certain targets.
1519 if test x${with_stabs} = x ; then
1520   case "${target}" in
1521   mips*-*-irix[[56]]*)
1522     ;;
1523   mips*-*-* | alpha*-*-osf*)
1524     with_stabs=yes;
1525     extra_host_args="${extra_host_args} --with-stabs"
1526     ;;
1527   esac
1528 fi
1529
1530 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1531 # them automatically.
1532 case "${host}" in
1533   hppa*64*-*-hpux11*)
1534     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1535     ;;
1536 esac
1537
1538 # Some systems (e.g., one of the i386-aix systems the gas testers are
1539 # using) don't handle "\$" correctly, so don't use it here.
1540 tooldir='${exec_prefix}'/${target_alias}
1541 build_tooldir=${tooldir}
1542
1543 # Generate default definitions for YACC, M4, LEX and other programs that run
1544 # on the build machine.  These are used if the Makefile can't locate these
1545 # programs in objdir.
1546 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1547 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1548 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1549 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1550 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1551 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1552 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1553
1554 # Create a .gdbinit file which runs the one in srcdir
1555 # and tells GDB to look there for source files.
1556
1557 if test -r ${srcdir}/.gdbinit ; then
1558   case ${srcdir} in
1559     .) ;;
1560     *) cat > ./.gdbinit <<EOF
1561 # ${NO_EDIT}
1562 dir ${srcdir}
1563 dir .
1564 source ${srcdir}/.gdbinit
1565 EOF
1566     ;;
1567   esac
1568 fi
1569
1570 # Make sure that the compiler is able to generate an executable.  If it
1571 # can't, we are probably in trouble.  We don't care whether we can run the
1572 # executable--we might be using a cross compiler--we only care whether it
1573 # can be created.  At this point the main configure script has set CC.
1574 we_are_ok=no
1575 echo "int main () { return 0; }" > conftest.c
1576 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1577 if test $? = 0 ; then
1578   if test -s conftest || test -s conftest.exe ; then
1579     we_are_ok=yes
1580   fi
1581 fi
1582 case $we_are_ok in
1583   no)
1584     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1585     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1586     rm -f conftest*
1587     exit 1
1588     ;;
1589 esac
1590 rm -f conftest*
1591
1592 # The Solaris /usr/ucb/cc compiler does not appear to work.
1593 case "${host}" in
1594   sparc-sun-solaris2*)
1595       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1596       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1597           could_use=
1598           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1599           if test -d /opt/cygnus/bin ; then
1600               if test "$could_use" = "" ; then
1601                   could_use="/opt/cygnus/bin"
1602               else
1603                   could_use="$could_use or /opt/cygnus/bin"
1604               fi
1605           fi
1606         if test "$could_use" = "" ; then
1607             echo "Warning: compilation may fail because you're using"
1608             echo "/usr/ucb/cc.  You should change your PATH or CC "
1609             echo "variable and rerun configure."
1610         else
1611             echo "Warning: compilation may fail because you're using"
1612             echo "/usr/ucb/cc, when you should use the C compiler from"
1613             echo "$could_use.  You should change your"
1614             echo "PATH or CC variable and rerun configure."
1615         fi
1616       fi
1617   ;;
1618 esac
1619
1620 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1621 # binutils tools will find libbfd.so.
1622 case "${enable_shared}" in
1623   no | "") SET_LIB_PATH= ;;
1624   *) SET_LIB_PATH="\$(REALLY_SET_LIB_PATH)" ;;
1625 esac
1626
1627 case "${host}" in
1628   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1629   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1630 esac
1631
1632 # Record target_configdirs and the configure arguments for target and
1633 # build configuration in Makefile.
1634 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1635 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1636
1637 # Determine whether gdb needs tk/tcl or not.
1638 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1639 # and in that case we want gdb to be built without tk.  Ugh!
1640 # In fact I believe gdb is the *only* package directly dependent on tk,
1641 # so we should be able to put the 'maybe's in unconditionally and
1642 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1643 # 100% sure that that's safe though.
1644
1645 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1646 case "$enable_gdbtk" in
1647   no)
1648     GDB_TK="" ;;
1649   yes)
1650     GDB_TK="${gdb_tk}" ;;
1651   *)
1652     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1653     # distro.  Eventually someone will fix this and move Insight, nee
1654     # gdbtk to a separate directory.
1655     if test -d ${srcdir}/gdb/gdbtk ; then
1656       GDB_TK="${gdb_tk}"
1657     else
1658       GDB_TK=""
1659     fi
1660     ;;
1661 esac
1662
1663 # Strip out unwanted targets.
1664
1665 # While at that, we remove Makefiles if we were started for recursive
1666 # configuration, so that the top-level Makefile reconfigures them,
1667 # like we used to do when configure itself was recursive.
1668
1669 # Loop over modules.  $extrasub must be used with care, limiting as
1670 # much as possible the usage of range addresses.  That's because autoconf
1671 # splits the sed script to overcome limits in the number of commands,
1672 # and relying on carefully-timed sed passes may turn out to be very hard
1673 # to maintain later.  In this particular case, you just have to be careful
1674 # not to nest @if/@endif pairs, because configure will not warn you at all.
1675
1676 AC_ARG_ENABLE([bootstrap],
1677 [  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
1678 enable_bootstrap=default)
1679
1680 # Issue errors and warnings for invalid/strange bootstrap combinations.
1681 case "$configdirs" in
1682   *gcc*) have_compiler=yes ;;
1683   *) have_compiler=no ;;
1684 esac
1685
1686 case "$have_compiler:$host:$target:$enable_bootstrap" in
1687   *:*:*:no) ;;
1688
1689   # Default behavior.  (We'll) enable bootstrap if we have a compiler
1690   # and we are in a native configuration.
1691   yes:$build:$build:default)
1692     # This will become 'yes'
1693     enable_bootstrap=no ;;
1694
1695   *:*:*:default)
1696     enable_bootstrap=no ;;
1697
1698   # We have a compiler and we are in a native configuration, bootstrap is ok
1699   yes:$build:$build:yes | yes:$build:$build:lean)
1700     ;;
1701
1702   # Other configurations, but we have a compiler.  Assume the user knows
1703   # what he's doing.
1704   yes:*:*:yes | yes:*:*:lean)
1705     AC_MSG_WARN([trying to bootstrap a cross compiler])
1706     ;;
1707
1708   # No compiler: if they passed --enable-bootstrap explicitly, fail
1709   no:*:*:yes | no:*:*:lean)
1710     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1711
1712   # Fail if wrong command line
1713   *)
1714     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1715     ;;
1716 esac
1717
1718 # Adjust the toplevel makefile according to whether bootstrap was selected.
1719 case "$enable_bootstrap" in
1720   yes)
1721     bootstrap_lean='#'
1722     default_target=bootstrap
1723     bootstrap_suffix=bootstrap ;;
1724   lean)
1725     bootstrap_lean=''
1726     default_target=bootstrap
1727     bootstrap_suffix=bootstrap ;;
1728   no)
1729     default_target=all
1730     bootstrap_suffix=no-bootstrap ;;
1731 esac
1732 AC_SUBST(bootstrap_lean)
1733 AC_SUBST(default_target)
1734
1735 for module in ${build_configdirs} ; do
1736   if test -z "${no_recursion}" \
1737      && test -f ${build_subdir}/${module}/Makefile; then
1738     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1739     rm -f ${build_subdir}/${module}/Makefile
1740   fi
1741   extrasub="$extrasub
1742 /^@if build-$module\$/d
1743 /^@endif build-$module\$/d
1744 /^@if build-$module-$bootstrap_suffix\$/d
1745 /^@endif build-$module-$bootstrap_suffix\$/d"
1746 done
1747 for module in ${configdirs} ; do
1748   if test -z "${no_recursion}" \
1749      && test -f ${module}/Makefile; then
1750     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1751     rm -f ${module}/Makefile
1752   fi
1753   extrasub="$extrasub
1754 /^@if $module\$/d
1755 /^@endif $module\$/d
1756 /^@if $module-$bootstrap_suffix\$/d
1757 /^@endif $module-$bootstrap_suffix\$/d"
1758 done
1759 for module in ${target_configdirs} ; do
1760   if test -z "${no_recursion}" \
1761      && test -f ${target_subdir}/${module}/Makefile; then
1762     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1763     rm -f ${target_subdir}/${module}/Makefile
1764   fi
1765   extrasub="$extrasub
1766 /^@if target-$module\$/d
1767 /^@endif target-$module\$/d
1768 /^@if target-$module-$bootstrap_suffix\$/d
1769 /^@endif target-$module-$bootstrap_suffix\$/d"
1770 done
1771
1772 extrasub="$extrasub
1773 /^@if /,/^@endif /d"
1774
1775 # Create the serialization dependencies.  This uses a temporary file.
1776
1777 AC_ARG_ENABLE([serial-configure],
1778 [  --enable-serial-[{host,target,build}-]configure
1779                           Force sequential configuration of
1780                           sub-packages for the host, target or build
1781                           machine, or all sub-packages])
1782
1783 case ${enable_serial_configure} in
1784   yes)
1785     enable_serial_build_configure=yes
1786     enable_serial_host_configure=yes
1787     enable_serial_target_configure=yes
1788     ;;
1789 esac
1790
1791 # These force 'configure's to be done one at a time, to avoid problems
1792 # with contention over a shared config.cache.
1793 rm -f serdep.tmp
1794 echo '# serdep.tmp' > serdep.tmp
1795 olditem=
1796 test "x${enable_serial_build_configure}" = xyes &&
1797 for item in ${build_configdirs} ; do
1798   case ${olditem} in
1799     "") ;;
1800     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1801   esac
1802   olditem=${item}
1803 done
1804 olditem=
1805 test "x${enable_serial_host_configure}" = xyes &&
1806 for item in ${configdirs} ; do
1807   case ${olditem} in
1808     "") ;;
1809     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1810   esac
1811   olditem=${item}
1812 done
1813 olditem=
1814 test "x${enable_serial_target_configure}" = xyes &&
1815 for item in ${target_configdirs} ; do
1816   case ${olditem} in
1817     "") ;;
1818     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1819   esac
1820   olditem=${item}
1821 done
1822 serialization_dependencies=serdep.tmp
1823 AC_SUBST_FILE(serialization_dependencies)
1824
1825 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1826 # target and nonopt.  These are the ones we might not want to pass
1827 # down to subconfigures.  Also strip program-prefix, program-suffix,
1828 # and program-transform-name, so that we can pass down a consistent
1829 # program-transform-name.  If autoconf has put single quotes around
1830 # any of these arguments (because they contain shell metacharacters)
1831 # then this will fail; in practice this only happens for
1832 # --program-transform-name, so be sure to override --program-transform-name
1833 # at the end of the argument list.
1834 # These will be expanded by make, so quote '$'.
1835 cat <<\EOF_SED > conftestsed
1836 s/ --no[[^ ]]*/ /g
1837 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1838 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1839 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1840 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1841 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1842 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1843 s/ -cache-file[[= ]][[^ ]]*//g
1844 s/ -srcdir[[= ]][[^ ]]*//g
1845 s/ -host[[= ]][[^ ]]*//g
1846 s/ -build[[= ]][[^ ]]*//g
1847 s/ -target[[= ]][[^ ]]*//g
1848 s/ -program-prefix[[= ]][[^ ]]*//g
1849 s/ -program-suffix[[= ]][[^ ]]*//g
1850 s/ -program-transform-name[[= ]][[^ ]]*//g
1851 s/ [[^' -][^ ]*] / /
1852 s/^ *//;s/ *$//
1853 s,\$,$$,g
1854 EOF_SED
1855 sed -f conftestsed <<EOF_SED > conftestsed.out
1856  ${ac_configure_args}
1857 EOF_SED
1858 baseargs=`cat conftestsed.out`
1859 rm -f conftestsed conftestsed.out
1860
1861 # Add in --program-transform-name, after --program-prefix and
1862 # --program-suffix have been applied to it.  Autoconf has already
1863 # doubled dollar signs and backslashes in program_transform_name; we want
1864 # the backslashes un-doubled, and then the entire thing wrapped in single
1865 # quotes, because this will be expanded first by make and then by the shell.
1866 # Also, because we want to override the logic in subdir configure scripts to
1867 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1868 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1869 ${program_transform_name}
1870 EOF_SED
1871 gcc_transform_name=`cat conftestsed.out`
1872 rm -f conftestsed.out
1873 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1874
1875 # For the build-side libraries, we just need to pretend we're native,
1876 # and not use the same cache file.  Multilibs are neither needed nor
1877 # desired.
1878 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} ${baseargs}"
1879
1880 # For host modules, accept cache file option, or specification as blank.
1881 case "${cache_file}" in
1882 "") # empty
1883   cache_file_option="" ;;
1884 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1885   cache_file_option="--cache-file=${cache_file}" ;;
1886 *) # relative path
1887   cache_file_option="--cache-file=../${cache_file}" ;;
1888 esac
1889
1890 # Host dirs don't like to share a cache file either, horribly enough.
1891 # This seems to be due to autoconf 2.5x stupidity.
1892 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1893
1894 target_configargs=${baseargs}
1895
1896 # Passing a --with-cross-host argument lets the target libraries know
1897 # whether they are being built with a cross-compiler or being built
1898 # native.  However, it would be better to use other mechanisms to make the
1899 # sorts of decisions they want to make on this basis.  Please consider
1900 # this option to be deprecated.  FIXME.
1901 if test x${is_cross_compiler} = xyes ; then
1902   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1903 fi
1904
1905 # Default to --enable-multilib.
1906 if test x${enable_multilib} = x ; then
1907   target_configargs="--enable-multilib ${target_configargs}"
1908 fi
1909
1910 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1911 # changed from the earlier setting of with_newlib.
1912 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1913   target_configargs="--with-newlib ${target_configargs}"
1914 fi
1915
1916 # Different target subdirs use different values of certain variables
1917 # (notably CXX).  Worse, multilibs use *lots* of different values.
1918 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1919 # it doesn't automatically accept command-line overrides of them.
1920 # This means it's not safe for target subdirs to share a cache file,
1921 # which is disgusting, but there you have it.  Hopefully this can be
1922 # fixed in future.  It's still worthwhile to use a cache file for each
1923 # directory.  I think.
1924
1925 # Pass the appropriate --host, --build, and --cache-file arguments.
1926 target_configargs="--cache-file=./config.cache --host=${target_alias} --build=${build_alias} ${target_configargs}"
1927
1928 # provide a proper gxx_include_dir.
1929 # Note, if you change the default, make sure to fix both here and in
1930 # the gcc and libstdc++-v3 subdirectories.
1931 # Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
1932 case "${with_gxx_include_dir}" in
1933   yes)
1934     AC_MSG_ERROR([--with-gxx-include-dir=[[dir]] requires a directory])
1935     ;;
1936   no | "")
1937     case "${enable_version_specific_runtime_libs}" in
1938       yes) gxx_include_dir='${libsubdir}/include/c++' ;;
1939       *)
1940         . ${srcdir}/config.if
1941         gxx_include_dir='${prefix}/include/'${libstdcxx_incdir} ;;
1942     esac ;;
1943   *) gxx_include_dir=${with_gxx_include_dir} ;;
1944 esac
1945
1946 FLAGS_FOR_TARGET=
1947 case " $target_configdirs " in
1948  *" newlib "*)
1949   case " $target_configargs " in
1950   *" --with-newlib "*)
1951    case "$target" in
1952    *-cygwin*)
1953      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 $$s/winsup/w32api/include' ;;
1954    esac
1955
1956    # If we're not building GCC, don't discard standard headers.
1957    if test -d ${srcdir}/gcc; then
1958      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1959
1960      if test "${build}" != "${host}"; then
1961        # On Canadian crosses, CC_FOR_TARGET will have already been set
1962        # by `configure', so we won't have an opportunity to add -Bgcc/
1963        # to it.  This is right: we don't want to search that directory
1964        # for binaries, but we want the header files in there, so add
1965        # them explicitly.
1966        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
1967
1968        # Someone might think of using the pre-installed headers on
1969        # Canadian crosses, in case the installed compiler is not fully
1970        # compatible with the compiler being built.  In this case, it
1971        # would be better to flag an error than risking having
1972        # incompatible object files being constructed.  We can't
1973        # guarantee that an error will be flagged, but let's hope the
1974        # compiler will do it, when presented with incompatible header
1975        # files.
1976      fi
1977    fi
1978
1979    case "${target}-${is_cross_compiler}" in
1980    i[[3456789]]86-*-linux*-no)
1981       # Here host == target, so we don't need to build gcc,
1982       # so we don't want to discard standard headers.
1983       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
1984       ;;
1985    *)
1986       # If we're building newlib, use its generic headers last, but search
1987       # for any libc-related directories first (so make it the last -B
1988       # switch).
1989       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1990       ;;
1991    esac
1992    ;;
1993   esac
1994   ;;
1995 esac
1996
1997 # Allow the user to override the flags for
1998 # our build compiler if desired.
1999 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2000
2001 # On Canadian crosses, we'll be searching the right directories for
2002 # the previously-installed cross compiler, so don't bother to add
2003 # flags for directories within the install tree of the compiler
2004 # being built; programs in there won't even run.
2005 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2006   # Search for pre-installed headers if nothing else fits.
2007   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2008 fi
2009
2010 if test "x${use_gnu_ld}" = x &&
2011    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2012   # Arrange for us to find uninstalled linker scripts.
2013   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
2014 fi
2015
2016 if test "x${CC_FOR_TARGET+set}" = xset; then
2017   :
2018 elif test -d ${srcdir}/gcc; then
2019   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
2020 elif test "$host" = "$target"; then
2021   CC_FOR_TARGET='$(CC)'
2022 else
2023   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
2024 fi
2025 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2026
2027 if test "x${GCJ_FOR_TARGET+set}" = xset; then
2028   :
2029 elif test -d ${srcdir}/gcc; then
2030   GCJ_FOR_TARGET='$$r/gcc/gcj -B$$r/gcc/'
2031 elif test "$host" = "$target"; then
2032   GCJ_FOR_TARGET='gcj'
2033 else
2034   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
2035 fi
2036 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2037
2038 if test "x${GFORTRAN_FOR_TARGET+set}" = xset; then
2039   :
2040 elif test -d ${srcdir}/gcc; then
2041   GFORTRAN_FOR_TARGET='$$r/gcc/gfortran -B$$r/gcc/'
2042 elif test "$host" = "$target"; then
2043   GFORTRAN_FOR_TARGET='gfortran'
2044 else
2045   GFORTRAN_FOR_TARGET=`echo gfortran | sed "${program_transform_name}"`
2046 fi
2047 case $GFORTRAN_FOR_TARGET in
2048 *' $(FLAGS_FOR_TARGET)') ;;
2049 *) GFORTRAN_FOR_TARGET=$GFORTRAN_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
2050 esac
2051
2052 # Don't use libstdc++-v3's flags to configure/build itself.
2053 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'
2054 raw_libstdcxx_flags='-L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2055
2056 if test "x${CXX_FOR_TARGET+set}" = xset; then
2057   if test "x${RAW_CXX_FOR_TARGET+set}" != xset; then
2058     RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2059   fi
2060 elif test -d ${srcdir}/gcc; then
2061   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
2062   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
2063   # default whereas gcc does not.
2064   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
2065   # all other cases.
2066   CXX_FOR_TARGET='$$r/gcc/g++ -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
2067   RAW_CXX_FOR_TARGET='$$r/gcc/xgcc -shared-libgcc -B$$r/gcc/ -nostdinc++ '$raw_libstdcxx_flags
2068 elif test "$host" = "$target"; then
2069   CXX_FOR_TARGET='$(CXX)'
2070   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2071 else
2072   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
2073   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2074 fi
2075 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2076 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2077
2078 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2079 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2080
2081 # We want to defer the evaluation of `cmd`s and shell variables in
2082 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
2083 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
2084 # quotes, but we still have to duplicate `$'s so that shell variables
2085 # can be expanded by the nested make as shell variables, not as make
2086 # macros.
2087 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2088 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2089
2090 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
2091 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
2092 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
2093 GFORTRAN_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GFORTRAN_FOR_TARGET}"
2094 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
2095 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
2096 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
2097 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
2098
2099 # Makefile fragments.
2100 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2101 do
2102   eval fragval=\$$frag
2103   if test $fragval != /dev/null; then
2104     eval $frag=${srcdir}/$fragval
2105   fi
2106 done
2107 AC_SUBST_FILE(host_makefile_frag)
2108 AC_SUBST_FILE(target_makefile_frag)
2109 AC_SUBST_FILE(alphaieee_frag)
2110 AC_SUBST_FILE(ospace_frag)
2111
2112 # Miscellanea: directories, flags, etc.
2113 AC_SUBST(SET_LIB_PATH)
2114 AC_SUBST(RPATH_ENVVAR)
2115 AC_SUBST(BUILD_PREFIX)
2116 AC_SUBST(BUILD_PREFIX_1)
2117 AC_SUBST(gcc_version_trigger)
2118 AC_SUBST(gcc_version)
2119 AC_SUBST(tooldir)
2120 AC_SUBST(build_tooldir)
2121 AC_SUBST(GDB_TK)
2122 AC_SUBST(gxx_include_dir)
2123 AC_SUBST(libstdcxx_incdir)
2124
2125 # Build module lists & subconfigure args.
2126 AC_SUBST(build_configargs)
2127 AC_SUBST(build_configdirs)
2128
2129 # Host module lists & subconfigure args.
2130 AC_SUBST(host_configargs)
2131 AC_SUBST(configdirs)
2132
2133 # Target module lists & subconfigure args.
2134 AC_SUBST(target_configargs)
2135 AC_SUBST(target_configdirs)
2136
2137 # Build tools.
2138 AC_SUBST(CC_FOR_BUILD)
2139 AC_SUBST(config_shell)
2140
2141 # Host tools.
2142 NCN_STRICT_CHECK_TOOL(AR, ar)
2143 NCN_STRICT_CHECK_TOOL(AS, as)
2144 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2145 NCN_STRICT_CHECK_TOOL(LD, ld)
2146 NCN_STRICT_CHECK_TOOL(NM, nm)
2147 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2148 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2149 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2150 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2151 AC_SUBST(CC)
2152 AC_SUBST(CXX)
2153 AC_SUBST(CFLAGS)
2154 AC_SUBST(CFLAGS_FOR_BUILD)
2155 AC_SUBST(CXXFLAGS)
2156
2157 # Target tools.
2158 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AR_FOR_TARGET, ar)
2159 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AS_FOR_TARGET, as)
2160 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_DLLTOOL_FOR_TARGET, dlltool)
2161 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_LD_FOR_TARGET, ld)
2162 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_NM_FOR_TARGET, nm)
2163 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_RANLIB_FOR_TARGET, ranlib, :)
2164 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_WINDRES_FOR_TARGET, windres)
2165
2166 AC_SUBST(GCC_FOR_TARGET)
2167 AC_SUBST(FLAGS_FOR_TARGET)
2168 AC_SUBST(CC_FOR_TARGET)
2169 AC_SUBST(GCJ_FOR_TARGET)
2170 AC_SUBST(GFORTRAN_FOR_TARGET)
2171 AC_SUBST(CXX_FOR_TARGET)
2172 AC_SUBST(RAW_CXX_FOR_TARGET)
2173 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2174 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2175
2176 # Fix up target tools.
2177 if test "x${build}" = "x${host}" ; then
2178   # In this case, the newly built tools can and should be used,
2179   # so we override the results of the autoconf tests.
2180   # This should really only happen when the tools are actually being built,
2181   # but that's a further refinement.  The new build scheme, where
2182   # tools are built into a structure paralleling where they're installed,
2183   # should also eliminate all of this cleanly.
2184   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2185   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2186   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2187   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2188   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2189   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2190   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2191 else
2192   # Just use the ones we found.
2193   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2194   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2195   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2196   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2197   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2198   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2199   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2200 fi
2201 AC_SUBST(AR_FOR_TARGET)
2202 AC_SUBST(AS_FOR_TARGET)
2203 AC_SUBST(DLLTOOL_FOR_TARGET)
2204 AC_SUBST(LD_FOR_TARGET)
2205 AC_SUBST(NM_FOR_TARGET)
2206 AC_SUBST(RANLIB_FOR_TARGET)
2207 AC_SUBST(WINDRES_FOR_TARGET)
2208
2209 # Certain tools may need extra flags.
2210 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2211 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2212 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2213
2214 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2215 AC_ARG_ENABLE(maintainer-mode,
2216 [  --enable-maintainer-mode enable make rules and dependencies not useful
2217                           (and sometimes confusing) to the casual installer],
2218       USE_MAINTAINER_MODE=$enableval,
2219       USE_MAINTAINER_MODE=no)
2220 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2221 AC_SUBST(MAINTAINER_MODE_TRUE)
2222 AC_SUBST(MAINTAINER_MODE_FALSE)
2223 if test "$USE_MAINTAINER_MODE" = yes; then
2224   MAINTAINER_MODE_TRUE=
2225   MAINTAINER_MODE_FALSE='#'
2226 else
2227   MAINTAINER_MODE_TRUE='#'
2228   MAINTAINER_MODE_FALSE=
2229 fi
2230 MAINT=$MAINTAINER_MODE_TRUE
2231 AC_SUBST(MAINT)dnl
2232
2233 # ---------------------
2234 # GCC bootstrap support
2235 # ---------------------
2236
2237 # Stage specific cflags for build.
2238 stage1_cflags="-g"
2239 case $build in
2240   vax-*-*)
2241     case ${GCC} in
2242       yes) stage1_cflags="-g -Wa,-J" ;;
2243       *) stage1_cflags="-g -J" ;;
2244     esac ;;
2245   powerpc-*-darwin*)
2246     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2247     # sources; use -no-cpp-precomp to get to GNU cpp.
2248     # Apple's GCC has bugs in designated initializer handling, so disable
2249     # that too.
2250     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2251     ;;
2252 esac
2253 AC_SUBST(stage1_cflags)
2254
2255 # It makes debugging easier if we create as symlinks the stage directories
2256 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
2257 # possible, however, we can resort to mv.
2258 AC_CACHE_CHECK([if symbolic links between directories work],
2259 [gcc_cv_prog_ln_s_dir],
2260 [if test "${LN_S}" = "ln -s" \
2261    && mkdir confdir.s1 \
2262    && ln -s confdir.s1 confdir.s2 \
2263    && echo timestamp1 > confdir.s1/conftest.1 \
2264    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2265    && echo timestamp2 > confdir.s2/conftest.2 \
2266    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2267    && rm -f confdir.s2; then
2268   gcc_cv_prog_ln_s_dir=yes
2269 else
2270   gcc_cv_prog_ln_s_dir=yes
2271 fi
2272 rm -rf confdir.s1 confdir.s2])
2273
2274 case ${gcc_cv_prog_ln_s_dir} in
2275   yes)
2276     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2277     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2278   *)
2279     CREATE_LINK_TO_DIR='mv $$1 $$2'
2280     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2281 esac
2282 AC_SUBST(CREATE_LINK_TO_DIR)
2283 AC_SUBST(UNDO_LINK_TO_DIR)
2284
2285 # Enable -Werror in bootstrap stage2 and later.
2286 # Change the default to "no" on release branches.
2287 AC_ARG_ENABLE(werror,
2288 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2289 [enable_werror=yes])
2290 case ${enable_werror} in
2291   yes) stage2_werror_flag="--enable-werror-always" ;;
2292   *) stage2_werror_flag="" ;;
2293 esac
2294 AC_SUBST(stage2_werror_flag)
2295
2296 AC_OUTPUT(Makefile)