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 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 libraries if build != host.
 188 if test ${host_alias} != ${build_alias} ; then
 189   build_configdirs=`echo ${build_libs} ${build_tools}`
 190 else
 191   build_configdirs=`echo ${build_tools}`
 192 fi
 193
 194 ################################################################################
 195
 196 srcname="gnu development package"
 197
 198 # This gets set non-empty for some net releases of packages.
 199 appdirs=""
 200
 201 # Define is_cross_compiler to save on calls to 'test'.
 202 is_cross_compiler=
 203 if test x"${host}" = x"${target}" ; then
 204   is_cross_compiler=no
 205 else
 206   is_cross_compiler=yes
 207 fi
 208
 209 # Find the build and target subdir names.
 210 GCC_TOPLEV_SUBDIRS
 211
 212 # Skipdirs are removed silently.
 213 skipdirs=
 214 # Noconfigdirs are removed loudly.
 215 noconfigdirs=""
 216
 217 use_gnu_ld=
 218 # Make sure we don't let GNU ld be added if we didn't want it.
 219 if test x$with_gnu_ld = xno ; then
 220   use_gnu_ld=no
 221   noconfigdirs="$noconfigdirs ld"
 222 fi
 223
 224 use_gnu_as=
 225 # Make sure we don't let GNU as be added if we didn't want it.
 226 if test x$with_gnu_as = xno ; then
 227   use_gnu_as=no
 228   noconfigdirs="$noconfigdirs gas"
 229 fi
 230
 231 # some tools are so dependent upon X11 that if we're not building with X,
 232 # it's not even worth trying to configure, much less build, that tool.
 233
 234 case ${with_x} in
 235   yes | "") ;; # the default value for this tree is that X11 is available
 236   no)
 237     skipdirs="${skipdirs} tk itcl libgui"
 238     # We won't be able to build gdbtk without X.
 239     enable_gdbtk=no
 240     ;;
 241   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 242 esac
 243
 244 # Some tools are only suitable for building in a "native" situation.
 245 # Remove these if host!=target.
 246 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"
 247
 248 # Similarly, some are only suitable for cross toolchains.
 249 # Remove these if host=target.
 250 cross_only="target-libgloss target-newlib target-opcodes"
 251
 252 case $is_cross_compiler in
 253   no) skipdirs="${skipdirs} ${cross_only}" ;;
 254   yes) skipdirs="${skipdirs} ${native_only}" ;;
 255 esac
 256
 257 # If both --with-headers and --with-libs are specified, default to
 258 # --without-newlib.
 259 if test x"${with_headers}" != x && test x"${with_headers} != xno \
 260    && test x"${with_libs}" != x && test x"${with_libs} != xno ; then
 261   if test x"${with_newlib}" = x ; then
 262     with_newlib=no
 263   fi
 264 fi
 265
 266 # Recognize --with-newlib/--without-newlib.
 267 case ${with_newlib} in
 268   no) skipdirs="${skipdirs} target-newlib" ;;
 269   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 270 esac
 271
 272 # Configure extra directories which are host specific
 273
 274 case "${host}" in
 275   *-cygwin*)
 276     configdirs="$configdirs libtermcap" ;;
 277 esac
 278
 279 # Remove more programs from consideration, based on the host or
 280 # target this usually means that a port of the program doesn't
 281 # exist yet.
 282
 283 case "${host}" in
 284   hppa*64*-*-*)
 285     noconfigdirs="$noconfigdirs byacc"
 286     ;;
 287   i[[3456789]]86-*-vsta)
 288     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 289     ;;
 290   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 291     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 292     ;;
 293   i[[3456789]]86-*-mingw32*)
 294     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 295     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 296     ;;
 297   i[[3456789]]86-*-beos*)
 298     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 299     ;;
 300   *-*-cygwin*)
 301     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 302     ;;
 303   *-*-netbsd*)
 304     noconfigdirs="$noconfigdirs rcs"
 305     ;;
 306   ppc*-*-pe)
 307     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 308     ;;
 309   powerpc-*-beos*)
 310     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 311     ;;
 312   *-*-darwin*)
 313     noconfigdirs="$noconfigdirs tk itcl libgui"
 314     ;;
 315 esac
 316
 317 AC_ARG_WITH(libbanshee,
 318 [  --without-libbanshee   Don't build with libbanshee])
 319 case ${with_libbanshee} in
 320   no)
 321     noconfigdirs="$noconfigdirs libbanshee" ;;
 322   yes|"")
 323     with_libbanshee=yes
 324     ;;
 325   *)
 326     AC_MSG_ERROR([--with-libbanshee can only be empty, "yes" or "no" (empty defaults to "yes".])
 327 esac
 328
 329 AC_ARG_ENABLE(libada,
 330 [  --enable-libada        Builds libada directory],
 331 ENABLE_LIBADA=$enableval,
 332 ENABLE_LIBADA=yes)
 333 if test "${ENABLE_LIBADA}" != "yes" ; then
 334   noconfigdirs="$noconfigdirs target-libada"
 335 fi
 336
 337 # Save it here so that, even in case of --enable-libgcj, if the Java
 338 # front-end isn't enabled, we still get libgcj disabled.
 339 libgcj_saved=$libgcj
 340 case $enable_libgcj in
 341 yes)
 342   # If we reset it here, it won't get added to noconfigdirs in the
 343   # target-specific build rules, so it will be forcibly enabled
 344   # (unless the Java language itself isn't enabled).
 345   libgcj=
 346   ;;
 347 no)
 348   # Make sure we get it printed in the list of not supported target libs.
 349   noconfigdirs="$noconfigdirs ${libgcj}"
 350   ;;
 351 esac
 352
 353
 354 # Allow --disable-libmudflap to exclude target-libmudflap
 355 case $enable_libmudflap in
 356 yes)
 357     ;;
 358 no)
 359     noconfigdirs="$noconfigdirs target-libmudflap"
 360     ;;
 361 "")
 362     case "${target}" in
 363     *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
 364         # Enable libmudflap by default in GNU and friends.
 365         ;;
 366     *-*-freebsd*)
 367         # Enable libmudflap by default in FreeBSD.
 368         ;;
 369     *)
 370         # Disable it by default everywhere else.
 371         noconfigdirs="$noconfigdirs target-libmudflap"
 372         ;;
 373     esac
 374 esac
 375
 376
 377 case "${target}" in
 378   *-*-chorusos)
 379     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 380     ;;
 381   powerpc-*-darwin*)
 382     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 383     noconfigdirs="$noconfigdirs target-libobjc"
 384     ;;
 385   *-*-darwin*)
 386     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 387     noconfigdirs="$noconfigdirs target-libobjc ${libgcj}"
 388     ;;
 389   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 390     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 391     ;;
 392   *-*-freebsd*)
 393     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 394     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 395         && test -f /usr/local/include/gmp.h; then
 396       with_gmp=/usr/local
 397     fi
 398
 399     # Skip some stuff that's unsupported on some FreeBSD configurations.
 400     case "${target}" in
 401       i*86-*-*) ;;
 402       alpha*-*-*) ;;
 403       *)
 404         noconfigdirs="$noconfigdirs ${libgcj}"
 405         ;;
 406     esac
 407     ;;
 408   *-*-kaos*)
 409     # Remove unsupported stuff on all kaOS configurations.
 410     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 411     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 412     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 413     noconfigdirs="$noconfigdirs target-libgloss"
 414     ;;
 415   *-*-netbsd*)
 416     # Skip some stuff on all NetBSD configurations.
 417     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 418
 419     # Skip some stuff that's unsupported on some NetBSD configurations.
 420     case "${target}" in
 421       i*86-*-netbsdelf*) ;;
 422       arm*-*-netbsdelf*) ;;
 423       *)
 424         noconfigdirs="$noconfigdirs ${libgcj}"
 425         ;;
 426     esac
 427     ;;
 428   *-*-netware)
 429     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-newlib target-libiberty target-libgloss ${libgcj}"
 430     ;;
 431   *-*-rtems*)
 432     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 433     ;;
 434   *-*-uclinux*)
 435     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 436     ;;
 437   *-*-vxworks*)
 438     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}"
 439     ;;
 440   alpha*-dec-osf*)
 441     # ld works, but does not support shared libraries.
 442     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 443     # gas doesn't generate exception information.
 444     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 445     ;;
 446   alpha*-*-*vms*)
 447     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 448     ;;
 449   alpha*-*-linux*)
 450     # newlib is not 64 bit ready
 451     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 452     ;;
 453   alpha*-*-*)
 454     # newlib is not 64 bit ready
 455     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 456     ;;
 457   am33_2.0-*-linux*)
 458     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 459     ;;
 460   sh-*-linux*)
 461     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 462     ;;
 463   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 464     noconfigdirs="$noconfigdirs ${libgcj}"
 465     noconfigdirs="$noconfigdirs target-examples"
 466     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 467     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 468     noconfigdirs="$noconfigdirs expect dejagnu"
 469     # the C++ libraries don't build on top of CE's C libraries
 470     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 471     noconfigdirs="$noconfigdirs target-newlib"
 472     case "${host}" in
 473       *-*-cygwin*) ;; # keep gdb and readline
 474       *) noconfigdirs="$noconfigdirs gdb readline"
 475          ;;
 476     esac
 477     ;;
 478   arc-*-*)
 479     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 480     ;;
 481   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 482     noconfigdirs="$noconfigdirs ${libgcj}"
 483     ;;
 484   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 485     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 486     ;;
 487   arm*-*-symbianelf*)
 488     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 489     ;;
 490   arm-*-pe*)
 491     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 492     ;;
 493   arm-*-oabi*)
 494     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 495     ;;
 496   thumb-*-coff)
 497     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 498     ;;
 499   thumb-*-elf)
 500     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 501     ;;
 502   thumb-*-oabi)
 503     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 504     ;;
 505   thumb-*-pe)
 506     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 507     ;;
 508   arm-*-riscix*)
 509     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 510     ;;
 511   avr-*-*)
 512     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 513     ;;
 514   c4x-*-* | tic4x-*-*)
 515     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 516     ;;
 517   c54x*-*-* | tic54x-*-*)
 518     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 519     ;;
 520   cris-*-*)
 521     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 522     ;;
 523   crx-*-*)
 524     noconfigdirs="$noconfigdirs target-libgloss target-libstdc++-v3 target-mudflap ${libgcj}"
 525     ;;
 526   d10v-*-*)
 527     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 528     ;;
 529   d30v-*-*)
 530     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 531     ;;
 532   fr30-*-elf*)
 533     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 534     ;;
 535   frv-*-*)
 536     noconfigdirs="$noconfigdirs ${libgcj}"
 537     ;;
 538   h8300*-*-*)
 539     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 540     ;;
 541   h8500-*-*)
 542     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 543     ;;
 544   hppa*64*-*-linux* | parisc*64*-*-linux*)
 545     # In this case, it's because the hppa64-linux target is for
 546     # the kernel only at this point and has no libc, and thus no
 547     # headers, crt*.o, etc., all of which are needed by these.
 548     noconfigdirs="$noconfigdirs target-zlib"
 549     ;;
 550   hppa*-*-*elf* | \
 551   parisc*-*-linux* | hppa*-*-linux* | \
 552   hppa*-*-lites* | \
 553   hppa*-*-openbsd* | \
 554   hppa*64*-*-*)
 555     noconfigdirs="$noconfigdirs ${libgcj}"
 556     # Do configure ld/binutils/gas for this case.
 557     ;;
 558   hppa*-*-*)
 559     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 560     # build on HP-UX 10.20.
 561     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 562     ;;
 563   i960-*-*)
 564     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 565     ;;
 566   ia64*-*-elf*)
 567     # No gdb support yet.
 568     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 569     ;;
 570   ia64*-**-hpux*)
 571     # No gdb or ld support yet.
 572     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 573     ;;
 574   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 575     noconfigdirs="$noconfigdirs ${libgcj}"
 576     ;;
 577   i[[3456789]]86-*-linux*)
 578     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 579     # not build java stuff by default.
 580     case "${target}" in
 581       *-*-*libc1*)
 582         noconfigdirs="$noconfigdirs ${libgcj}";;
 583     esac
 584
 585     # This section makes it possible to build newlib natively on linux.
 586     # If we are using a cross compiler then don't configure newlib.
 587     if test x${is_cross_compiler} != xno ; then
 588       noconfigdirs="$noconfigdirs target-newlib"
 589     fi
 590     noconfigdirs="$noconfigdirs target-libgloss"
 591     # If we are not using a cross compiler, do configure newlib.
 592     # Note however, that newlib will only be configured in this situation
 593     # if the --with-newlib option has been given, because otherwise
 594     # 'target-newlib' will appear in skipdirs.
 595     ;;
 596   i[[3456789]]86-*-mingw32*)
 597     target_configdirs="$target_configdirs target-mingw"
 598     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 599
 600     # Can't build gdb for mingw32 if not native.
 601     case "${host}" in
 602       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 603       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 604          ;;
 605     esac
 606     ;;
 607   *-*-cygwin*)
 608     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 609     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 610     # always build newlib if winsup directory is present.
 611     if test -d "$srcdir/winsup"
 612     then
 613       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 614     else
 615       echo "Warning: winsup is missing so newlib can't be built."
 616     fi
 617
 618     # Can't build gdb for Cygwin if not native.
 619     case "${host}" in
 620       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 621       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 622          ;;
 623     esac
 624     ;;
 625   i[[3456789]]86-*-pe)
 626     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 627     ;;
 628   i[[3456789]]86-*-sco3.2v5*)
 629     # The linker does not yet know about weak symbols in COFF,
 630     # and is not configured to handle mixed ELF and COFF.
 631     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 632     ;;
 633   i[[3456789]]86-*-sco*)
 634     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 635     ;;
 636   i[[3456789]]86-*-solaris2*)
 637     noconfigdirs="$noconfigdirs target-libgloss"
 638     ;;
 639   i[[3456789]]86-*-sysv4*)
 640     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 641     ;;
 642   i[[3456789]]86-*-beos*)
 643     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 644     ;;
 645   m32r-*-*)
 646     noconfigdirs="$noconfigdirs ${libgcj}"
 647     ;;
 648   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 649     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 650     ;;
 651   m68k-*-elf*)
 652     noconfigdirs="$noconfigdirs ${libgcj}"
 653     ;;
 654   m68k-*-coff*)
 655     noconfigdirs="$noconfigdirs ${libgcj}"
 656     ;;
 657   mcore-*-pe*)
 658   # The EPOC C++ environment does not support exceptions or rtti,
 659   # and so building libstdc++-v3 tends not to always work.
 660     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 661     ;;
 662   mmix-*-*)
 663     noconfigdirs="$noconfigdirs ${libgcj} gdb libgloss"
 664     ;;
 665   mn10200-*-*)
 666     noconfigdirs="$noconfigdirs ${libgcj}"
 667     ;;
 668   mn10300-*-*)
 669     noconfigdirs="$noconfigdirs ${libgcj}"
 670     ;;
 671   powerpc-*-aix*)
 672     # copied from rs6000-*-* entry
 673     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 674     ;;
 675   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 676     target_configdirs="$target_configdirs target-winsup"
 677     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 678     # always build newlib.
 679     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 680     ;;
 681     # This is temporary until we can link against shared libraries
 682   powerpcle-*-solaris*)
 683     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 684     ;;
 685   powerpc-*-beos*)
 686     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 687     ;;
 688   powerpc-*-eabi)
 689     noconfigdirs="$noconfigdirs ${libgcj}"
 690     ;;
 691   rs6000-*-lynxos*)
 692     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 693     ;;
 694   rs6000-*-aix*)
 695     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 696     ;;
 697   rs6000-*-*)
 698     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 699     ;;
 700   m68k-apollo-*)
 701     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 702     ;;
 703   mips*-*-irix5*)
 704     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 705     ;;
 706   mips*-*-irix6*)
 707     # Linking libjava exceeds command-line length limits on at least
 708     # IRIX 6.2, but not on IRIX 6.5.
 709     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 710     # <oldham@codesourcery.com>
 711     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 712     ;;
 713   mips*-dec-bsd*)
 714     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 715     ;;
 716   mips*-*-bsd*)
 717     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 718     ;;
 719   mipstx39-*-*)
 720     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 721     ;;
 722   mips64*-*-linux*)
 723     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 724     ;;
 725   mips*-*-linux*)
 726     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 727     ;;
 728   mips*-*-*)
 729     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 730     ;;
 731   romp-*-*)
 732     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 733     ;;
 734   sh-*-*)
 735     case "${host}" in
 736       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 737       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 738       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 739       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 740     esac
 741     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 742     ;;
 743   sh64-*-*)
 744     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 745     ;;
 746   sparc-*-elf*)
 747     noconfigdirs="$noconfigdirs ${libgcj}"
 748     ;;
 749   sparc64-*-elf*)
 750     noconfigdirs="$noconfigdirs ${libgcj}"
 751     ;;
 752   sparclite-*-*)
 753     noconfigdirs="$noconfigdirs ${libgcj}"
 754     ;;
 755   sparc-*-sunos4*)
 756     noconfigdirs="$noconfigdirs ${libgcj}"
 757     if test x${is_cross_compiler} != xno ; then
 758            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 759     else
 760            use_gnu_ld=no
 761     fi
 762     ;;
 763   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 764     ;;
 765   v810-*-*)
 766     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 767     ;;
 768   v850-*-*)
 769     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 770     ;;
 771   v850e-*-*)
 772     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 773     ;;
 774   v850ea-*-*)
 775     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 776     ;;
 777   vax-*-vms)
 778     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 779     ;;
 780   vax-*-*)
 781     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 782     ;;
 783   xtensa-*-*)
 784     noconfigdirs="$noconfigdirs ${libgcj}"
 785     ;;
 786   ip2k-*-*)
 787     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 788     ;;
 789   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 790     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 791     ;;
 792   *-*-lynxos*)
 793     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 794     ;;
 795   *-*-*)
 796     noconfigdirs="$noconfigdirs ${libgcj}"
 797     ;;
 798 esac
 799
 800 # If we aren't building newlib, then don't build libgloss, since libgloss
 801 # depends upon some newlib header files.
 802 case "${noconfigdirs}" in
 803   *target-libgloss*) ;;
 804   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 805 esac
 806
 807 # Work in distributions that contain no compiler tools, like Autoconf.
 808 tentative_cc=""
 809 host_makefile_frag=/dev/null
 810 if test -d ${srcdir}/config ; then
 811 case "${host}" in
 812   m68k-hp-hpux*)
 813     # Avoid "too much defining" errors from HPUX compiler.
 814     tentative_cc="cc -Wp,-H256000"
 815     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 816     # If it's HP/UX ar, this should be harmless.
 817     RANLIB="ar ts"
 818     ;;
 819   m68k-apollo-sysv*)
 820     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 821     ;;
 822   m68k-apollo-bsd*)
 823     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 824     # chokes on bfd, the compiler won't let you assign integers to enums, and
 825     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 826     # the apollo compiler" (the preferred version of GCC could be called cc,
 827     # or whatever), but I'm not sure leaving CC as cc is any better...
 828     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 829     # Used to have BISON=yacc.
 830     tentative_cc=gcc
 831     ;;
 832   m88k-dg-dgux*)
 833     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 834     ;;
 835   m88k-harris-cxux*)
 836     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 837     tentative_cc="cc -Xa"
 838     host_makefile_frag="config/mh-cxux"
 839     ;;
 840   m88k-motorola-sysv*)
 841     ;;
 842   mips*-dec-ultrix*)
 843     tentative_cc="cc -Wf,-XNg1000"
 844     host_makefile_frag="config/mh-decstation"
 845     ;;
 846   mips*-nec-sysv4*)
 847     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 848     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 849     host_makefile_frag="config/mh-necv4"
 850     ;;
 851   mips*-sgi-irix4*)
 852     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 853     # environment.  Also bump switch table size so that cp-parse will
 854     # compile.  Bump string length limit so linker builds.
 855     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 856     ;;
 857   mips*-*-sysv4*)
 858     host_makefile_frag="config/mh-sysv4"
 859     ;;
 860   mips*-*-sysv*)
 861     # This is for a MIPS running RISC/os 4.52C.
 862
 863     # This is needed for GDB, but needs to be in the top-level make because
 864     # if a library is compiled with the bsd headers and gets linked with the
 865     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 866     # a different size).
 867     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 868     # known except to select the sysv environment.  Could we use /proc instead?
 869     # These "sysv environments" and "bsd environments" often end up being a pain.
 870     #
 871     # This is not part of CFLAGS because perhaps not all C compilers have this
 872     # option.
 873     tentative_cc="cc -systype sysv"
 874     ;;
 875   i370-ibm-opened*)
 876     tentative_cc="c89"
 877     ;;
 878   i[[3456789]]86-*-sysv5*)
 879     host_makefile_frag="config/mh-sysv5"
 880     ;;
 881   i[[3456789]]86-*-dgux*)
 882     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 883     host_makefile_frag="config/mh-dgux386"
 884     ;;
 885   i[[3456789]]86-ncr-sysv4.3*)
 886     # The MetaWare compiler will generate a copyright message unless you
 887     # turn it off by adding the -Hnocopyr flag.
 888     tentative_cc="cc -Hnocopyr"
 889     ;;
 890   i[[3456789]]86-ncr-sysv4*)
 891     # for an NCR 3000 (i486/SVR4) system.
 892     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 893     # This compiler not only emits obnoxious copyright messages every time
 894     # you run it, but it chokes and dies on a whole bunch of GNU source
 895     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 896     tentative_cc="/usr/ccs/ATT/cc"
 897     host_makefile_frag="config/mh-ncr3000"
 898     ;;
 899   i[[3456789]]86-*-sco3.2v5*)
 900     ;;
 901   i[[3456789]]86-*-sco*)
 902     # The native C compiler botches some simple uses of const.  Unfortunately,
 903     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 904     tentative_cc="cc -Dconst="
 905     host_makefile_frag="config/mh-sco"
 906     ;;
 907   i[[3456789]]86-*-udk*)
 908     host_makefile_frag="config/mh-sysv5"
 909     ;;
 910   i[[3456789]]86-*-solaris2*)
 911     host_makefile_frag="config/mh-sysv4"
 912     ;;
 913   i[[3456789]]86-*-msdosdjgpp*)
 914     host_makefile_frag="config/mh-djgpp"
 915     ;;
 916   *-cygwin*)
 917     host_makefile_frag="config/mh-cygwin"
 918     ;;
 919   *-mingw32*)
 920     host_makefile_frag="config/mh-mingw32"
 921     ;;
 922   *-interix*)
 923     host_makefile_frag="config/mh-interix"
 924     ;;
 925   vax-*-ultrix2*)
 926     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 927     tentative_cc=gcc
 928     ;;
 929   *-*-solaris2*)
 930     host_makefile_frag="config/mh-solaris"
 931     ;;
 932   m68k-sun-sunos*)
 933     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 934     # without overflowing the jump tables (-J says to use a 32 bit table)
 935     tentative_cc="cc -J"
 936     ;;
 937   *-hp-hpux*)
 938     tentative_cc="cc -Wp,-H256000"
 939     ;;
 940   *-*-hiux*)
 941     tentative_cc="cc -Wp,-H256000"
 942     ;;
 943   rs6000-*-lynxos*)
 944     # /bin/cc is less than useful for our purposes.  Always use GCC
 945     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 946     host_makefile_frag="config/mh-lynxrs6k"
 947     ;;
 948   *-*-lynxos*)
 949     # /bin/cc is less than useful for our purposes.  Always use GCC
 950     tentative_cc="/bin/gcc"
 951     ;;
 952   *-*-sysv4*)
 953     host_makefile_frag="config/mh-sysv4"
 954     ;;
 955 esac
 956 fi
 957
 958 # If we aren't going to be using gcc, see if we can extract a definition
 959 # of CC from the fragment.
 960 # Actually, use the 'pre-extracted' version above.
 961 if test -z "${CC}" && test "${build}" = "${host}" ; then
 962   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 963   found=
 964   for dir in $PATH; do
 965     test -z "$dir" && dir=.
 966     if test -f $dir/gcc; then
 967       found=yes
 968       break
 969     fi
 970   done
 971   IFS="$save_ifs"
 972   if test -z "${found}" && test -n "${tentative_cc}" ; then
 973     CC=$tentative_cc
 974   fi
 975 fi
 976
 977 if test "${build}" != "${host}" ; then
 978   # If we are doing a Canadian Cross, in which the host and build systems
 979   # are not the same, we set reasonable default values for the tools.
 980
 981   CC=${CC-${host_alias}-gcc}
 982   CFLAGS=${CFLAGS-"-g -O2"}
 983   CXX=${CXX-${host_alias}-c++}
 984   CXXFLAGS=${CXXFLAGS-"-g -O2"}
 985   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
 986   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
 987   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
 988   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
 989   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
 990   BUILD_PREFIX=${build_alias}-
 991   BUILD_PREFIX_1=${build_alias}-
 992
 993 else
 994   # Set reasonable default values for some tools even if not Canadian.
 995   # Of course, these are different reasonable default values, originally
 996   # specified directly in the Makefile.
 997   # We don't export, so that autoconf can do its job.
 998   # Note that all these settings are above the fragment inclusion point
 999   # in Makefile.in, so can still be overridden by fragments.
1000   # This is all going to change when we autoconfiscate...
1001
1002   CC_FOR_BUILD="\$(CC)"
1003   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
1004   BUILD_PREFIX=
1005   BUILD_PREFIX_1=loser-
1006
1007   AC_PROG_CC
1008
1009   # We must set the default linker to the linker used by gcc for the correct
1010   # operation of libtool.  If LD is not defined and we are using gcc, try to
1011   # set the LD default to the ld used by gcc.
1012   if test -z "$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=${CXXFLAGS-"-g -O2"}
1031 fi
1032
1033 ACX_PROG_GNAT
1034 ACX_PROG_CMP_IGNORE_INITIAL
1035
1036 # Check for GMP and MPFR
1037 gmplibs=
1038 gmpinc=
1039 have_gmp=yes
1040 # Specify a location for mpfr
1041 # check for this first so it ends up on the link line before gmp.
1042 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1043
1044 if test "x$with_mpfr_dir" != x; then
1045   gmpinc="-I$with_mpfr_dir/mpfr"
1046   gmplibs="$with_mpfr_dir/libmpfr.a"
1047 else
1048   gmplibs="-lmpfr"
1049 fi
1050
1051 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1052
1053 if test "x$with_mpfr" != x; then
1054   gmplibs="-L$with_mpfr/lib $gmplibs"
1055   gmpinc="-I$with_mpfr/include"
1056 fi
1057
1058 # Specify a location for gmp
1059 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1060
1061 if test "x$with_gmp_dir" != x; then
1062   gmpinc="$gmpinc -I$with_gmp_dir"
1063   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1064     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1065   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1066     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1067   fi
1068   # One of the later tests will catch the error if neither library is present.
1069 else
1070   gmplibs="$gmplibs -lgmp"
1071 fi
1072
1073 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1074
1075 if test "x$with_gmp" != x; then
1076   gmplibs="-L$with_gmp/lib $gmplibs"
1077   gmpinc="-I$with_gmp/include $gmpinc"
1078 fi
1079
1080 saved_CFLAGS="$CFLAGS"
1081 CFLAGS="$CFLAGS $gmpinc"
1082 # Check GMP actually works
1083 AC_MSG_CHECKING([for correct version of gmp.h])
1084 AC_TRY_COMPILE([#include "gmp.h"],[
1085 #if __GNU_MP_VERSION < 3
1086 choke me
1087 #endif
1088 ], [AC_MSG_RESULT([yes])],
1089   [AC_MSG_RESULT([no]); have_gmp=no])
1090
1091 if test x"$have_gmp" = xyes; then
1092   AC_MSG_CHECKING([for MPFR])
1093
1094   saved_LIBS="$LIBS"
1095   LIBS="$LIBS $gmplibs"
1096   AC_TRY_LINK([#include <gmp.h>
1097 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1098     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1099   LIBS="$saved_LIBS"
1100   CFLAGS="$saved_CFLAGS"
1101 fi
1102
1103 # Flags needed for both GMP and/or MPFR
1104 AC_SUBST(gmplibs)
1105 AC_SUBST(gmpinc)
1106
1107 # By default, C is the only stage 1 language.
1108 stage1_languages=c
1109 AC_SUBST(stage1_languages)
1110
1111 # Figure out what language subdirectories are present.
1112 # Look if the user specified --enable-languages="..."; if not, use
1113 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1114 # go away some day.
1115 # NB:  embedded tabs in this IF block -- do not untabify
1116 if test -d ${srcdir}/gcc; then
1117   if test x"${enable_languages+set}" != xset; then
1118     if test x"${LANGUAGES+set}" = xset; then
1119       enable_languages="${LANGUAGES}"
1120         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1121     else
1122       enable_languages=all
1123     fi
1124   else
1125     if test x"${enable_languages}" = x ||
1126        test x"${enable_languages}" = xyes;
1127        then
1128       echo configure.in: --enable-languages needs at least one language argument 1>&2
1129       exit 1
1130     fi
1131   fi
1132   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1133
1134   # First scan to see if an enabled language requires some other language.
1135   # We assume that a given config-lang.in will list all the language
1136   # front ends it requires, even if some are required indirectly.
1137   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1138     case ${lang_frag} in
1139       ..) ;;
1140       # The odd quoting in the next line works around
1141       # an apparent bug in bash 1.12 on linux.
1142       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1143       *)
1144         # From the config-lang.in, get $language, $lang_requires
1145         language=
1146         lang_requires=
1147         . ${lang_frag}
1148         for other in ${lang_requires} ; do
1149           case ,${enable_languages}, in
1150             *,$other,*) ;;
1151             *,all,*) ;;
1152             *,$language,*)
1153               echo " \`$other' language required by \`$language'; enabling" 1>&2
1154               enable_languages="${enable_languages},${other}"
1155               ;;
1156           esac
1157         done
1158         ;;
1159     esac
1160   done
1161
1162   new_enable_languages=c
1163   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1164   potential_languages=c
1165
1166   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1167     case ${lang_frag} in
1168       ..) ;;
1169       # The odd quoting in the next line works around
1170       # an apparent bug in bash 1.12 on linux.
1171       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1172       *)
1173         # From the config-lang.in, get $language, $target_libs,
1174         # $lang_dirs, $boot_language, and $build_by_default
1175         language=
1176         target_libs=
1177         lang_dirs=
1178         boot_language=
1179         build_by_default=
1180         need_gmp=
1181         . ${lang_frag}
1182         potential_languages="${potential_languages},${language}"
1183         # This is quite sensitive to the ordering of the case statement arms.
1184         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1185           *::*:*)
1186             echo "${lang_frag} doesn't set \$language." 1>&2
1187             exit 1
1188             ;;
1189           *:ada:no:*)
1190             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1191             add_this_lang=no
1192             ;;
1193           *,${language},*:*:*:*)
1194             # Language was explicitly selected; include it.
1195             add_this_lang=yes
1196             ;;
1197           *,all,*:*:*:no)
1198             # 'all' was selected, but this is not a default language
1199             # so do not include it.
1200             add_this_lang=no
1201             ;;
1202           *,all,*:*:*:*)
1203             # 'all' was selected and this is a default language; include it.
1204             add_this_lang=yes
1205             ;;
1206           *)
1207             add_this_lang=no
1208             ;;
1209         esac
1210
1211         # Disable languages that need GMP if it isn't available.
1212         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1213           *,${language},*:no:yes)
1214             # Specifically requested language; tell them.
1215             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1216             ;;
1217           *:no:yes)
1218             # Silently disable.
1219             add_this_lang=no
1220             ;;
1221         esac
1222
1223         case $add_this_lang in
1224           no)
1225             # Remove language-dependent dirs.
1226             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1227             ;;
1228           *)
1229             new_enable_languages="$new_enable_languages,$language"
1230             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1231             case ${boot_language} in
1232               yes)
1233                 # Add to (comma-separated) list of stage 1 languages.
1234                 stage1_languages="${stage1_languages},${language}"
1235                 ;;
1236             esac
1237             ;;
1238         esac
1239         ;;
1240     esac
1241   done
1242
1243   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1244   if test "x$missing_languages" != x; then
1245     AC_MSG_ERROR([
1246 The following requested languages were not found: ${missing_languages}
1247 The available languages are: ${potential_languages}])
1248   fi
1249
1250   if test "x$new_enable_languages" != "x$enable_languages"; then
1251     echo The following languages will be built: ${new_enable_languages}
1252   fi
1253   enable_languages="$new_enable_languages"
1254   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1255 fi
1256
1257 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
1258 # $target_configdirs.
1259 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1260
1261 notsupp=""
1262 for dir in . $skipdirs $noconfigdirs ; do
1263   dirname=`echo $dir | sed -e s/target-//g`
1264   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1265     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1266     if test -r $srcdir/$dirname/configure ; then
1267       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1268         true
1269       else
1270         notsupp="$notsupp $dir"
1271       fi
1272     fi
1273   fi
1274   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1275     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1276     if test -r $srcdir/$dirname/configure ; then
1277       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1278         true
1279       else
1280         notsupp="$notsupp $dir"
1281       fi
1282     fi
1283   fi
1284 done
1285
1286 # Sometimes the tools are distributed with libiberty but with no other
1287 # libraries.  In that case, we don't want to build target-libiberty.
1288 if test -n "${target_configdirs}" ; then
1289   others=
1290   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1291     if test "$i" != "libiberty" ; then
1292       if test -r $srcdir/$i/configure ; then
1293         others=yes;
1294         break;
1295       fi
1296     fi
1297   done
1298   if test -z "${others}" ; then
1299     target_configdirs=
1300   fi
1301 fi
1302
1303 # Quietly strip out all directories which aren't configurable in this tree.
1304 # This relies on all configurable subdirectories being autoconfiscated, which
1305 # is now the case.
1306 build_configdirs_all="$build_configdirs"
1307 build_configdirs=
1308 for i in ${build_configdirs_all} ; do
1309   j=`echo $i | sed -e s/build-//g`
1310   if test -f ${srcdir}/$j/configure ; then
1311     build_configdirs="${build_configdirs} $i"
1312   fi
1313 done
1314
1315 configdirs_all="$configdirs"
1316 configdirs=
1317 for i in ${configdirs_all} ; do
1318   if test -f ${srcdir}/$i/configure ; then
1319     configdirs="${configdirs} $i"
1320   fi
1321 done
1322
1323 target_configdirs_all="$target_configdirs"
1324 target_configdirs=
1325 for i in ${target_configdirs_all} ; do
1326   j=`echo $i | sed -e s/target-//g`
1327   if test -f ${srcdir}/$j/configure ; then
1328     target_configdirs="${target_configdirs} $i"
1329   fi
1330 done
1331
1332 # Produce a warning message for the subdirs we can't configure.
1333 # This isn't especially interesting in the Cygnus tree, but in the individual
1334 # FSF releases, it's important to let people know when their machine isn't
1335 # supported by the one or two programs in a package.
1336
1337 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1338   # If $appdirs is non-empty, at least one of those directories must still
1339   # be configured, or we error out.  (E.g., if the gas release supports a
1340   # specified target in some subdirs but not the gas subdir, we shouldn't
1341   # pretend that all is well.)
1342   if test -n "$appdirs" ; then
1343     for dir in $appdirs ; do
1344       if test -r $dir/Makefile.in ; then
1345         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1346           appdirs=""
1347           break
1348         fi
1349         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1350           appdirs=""
1351           break
1352         fi
1353       fi
1354     done
1355     if test -n "$appdirs" ; then
1356       echo "*** This configuration is not supported by this package." 1>&2
1357       exit 1
1358     fi
1359   fi
1360   # Okay, some application will build, or we don't care to check.  Still
1361   # notify of subdirs not getting built.
1362   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1363   echo "    ${notsupp}" 1>&2
1364   echo "    (Any other directories should still work fine.)" 1>&2
1365 fi
1366
1367 case "$host" in
1368   *msdosdjgpp*)
1369     enable_gdbtk=no ;;
1370 esac
1371
1372 copy_dirs=
1373
1374 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1375 # the named directory are copied to $(tooldir)/sys-include.
1376 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1377   if test x${is_cross_compiler} = xno ; then
1378     echo 1>&2 '***' --with-headers is only supported when cross compiling
1379     exit 1
1380   fi
1381   if test x"${with_headers}" != xyes ; then
1382     case "${exec_prefixoption}" in
1383     "") x=${prefix} ;;
1384     *) x=${exec_prefix} ;;
1385     esac
1386     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1387   fi
1388 fi
1389
1390 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1391 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1392 # are permitted.
1393 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1394   if test x${is_cross_compiler} = xno ; then
1395     echo 1>&2 '***' --with-libs is only supported when cross compiling
1396     exit 1
1397   fi
1398   if test x"${with_libs}" != xyes ; then
1399     # Copy the libraries in reverse order, so that files in the first named
1400     # library override files in subsequent libraries.
1401     case "${exec_prefixoption}" in
1402     "") x=${prefix} ;;
1403     *) x=${exec_prefix} ;;
1404     esac
1405     for l in ${with_libs}; do
1406       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1407     done
1408   fi
1409 fi
1410
1411 # Handle ${copy_dirs}
1412 set fnord ${copy_dirs}
1413 shift
1414 while test $# != 0 ; do
1415   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1416     :
1417   else
1418     echo Copying $1 to $2
1419
1420     # Use the install script to create the directory and all required
1421     # parent directories.
1422     if test -d $2 ; then
1423       :
1424     else
1425       echo >config.temp
1426       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1427     fi
1428
1429     # Copy the directory, assuming we have tar.
1430     # FIXME: Should we use B in the second tar?  Not all systems support it.
1431     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1432
1433     # It is the responsibility of the user to correctly adjust all
1434     # symlinks.  If somebody can figure out how to handle them correctly
1435     # here, feel free to add the code.
1436
1437     echo $1 > $2/COPIED
1438   fi
1439   shift; shift
1440 done
1441
1442 extra_arflags_for_target=
1443 extra_nmflags_for_target=
1444 extra_ranlibflags_for_target=
1445 target_makefile_frag=/dev/null
1446 case "${target}" in
1447   i[[3456789]]86-*-netware*)
1448     target_makefile_frag="config/mt-netware"
1449     ;;
1450   powerpc-*-netware*)
1451     target_makefile_frag="config/mt-netware"
1452     ;;
1453   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1454     target_makefile_frag="config/mt-gnu"
1455     ;;
1456   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1457     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1458     # commands to handle both 32-bit and 64-bit objects.  These flags are
1459     # harmless if we're using GNU nm or ar.
1460     extra_arflags_for_target=" -X32_64"
1461     extra_nmflags_for_target=" -B -X32_64"
1462     ;;
1463   *-*-darwin*)
1464     # ranlib from Darwin requires the -c flag to look at common symbols.
1465     extra_ranlibflags_for_target=" -c"
1466     ;;
1467   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1468     target_makefile_frag="config/mt-wince"
1469     ;;
1470 esac
1471
1472 alphaieee_frag=/dev/null
1473 case $target in
1474   alpha*-*-*)
1475     # This just makes sure to use the -mieee option to build target libs.
1476     # This should probably be set individually by each library.
1477     alphaieee_frag="config/mt-alphaieee"
1478     ;;
1479 esac
1480
1481 # If --enable-target-optspace always use -Os instead of -O2 to build
1482 # the target libraries, similarly if it is not specified, use -Os
1483 # on selected platforms.
1484 ospace_frag=/dev/null
1485 case "${enable_target_optspace}:${target}" in
1486   yes:*)
1487     ospace_frag="config/mt-ospace"
1488     ;;
1489   :d30v-*)
1490     ospace_frag="config/mt-d30v"
1491     ;;
1492   :m32r-* | :d10v-* | :fr30-*)
1493     ospace_frag="config/mt-ospace"
1494     ;;
1495   no:* | :*)
1496     ;;
1497   *)
1498     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1499     ;;
1500 esac
1501
1502 # Set with_gnu_as and with_gnu_ld as appropriate.
1503 #
1504 # This is done by determining whether or not the appropriate directory
1505 # is available, and by checking whether or not specific configurations
1506 # have requested that this magic not happen.
1507 #
1508 # The command line options always override the explicit settings in
1509 # configure.in, and the settings in configure.in override this magic.
1510 #
1511 # If the default for a toolchain is to use GNU as and ld, and you don't
1512 # want to do that, then you should use the --without-gnu-as and
1513 # --without-gnu-ld options for the configure script.
1514
1515 if test x${use_gnu_as} = x &&
1516    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1517   with_gnu_as=yes
1518   extra_host_args="$extra_host_args --with-gnu-as"
1519 fi
1520
1521 if test x${use_gnu_ld} = x &&
1522    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1523   with_gnu_ld=yes
1524   extra_host_args="$extra_host_args --with-gnu-ld"
1525 fi
1526
1527 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1528 # can detect this case.
1529
1530 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1531   with_newlib=yes
1532   extra_host_args="$extra_host_args --with-newlib"
1533 fi
1534
1535 if test x${with_libbanshee} = xyes && echo " ${configdirs} " | grep " libbanshee " >/dev/null 2>&1; then
1536   extra_host_args="$extra_host_args --with-libbanshee"
1537 fi
1538
1539 # Default to using --with-stabs for certain targets.
1540 if test x${with_stabs} = x ; then
1541   case "${target}" in
1542   mips*-*-irix[[56]]*)
1543     ;;
1544   mips*-*-* | alpha*-*-osf*)
1545     with_stabs=yes;
1546     extra_host_args="${extra_host_args} --with-stabs"
1547     ;;
1548   esac
1549 fi
1550
1551 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1552 # them automatically.
1553 case "${host}" in
1554   hppa*64*-*-hpux11*)
1555     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1556     ;;
1557 esac
1558
1559 # Some systems (e.g., one of the i386-aix systems the gas testers are
1560 # using) don't handle "\$" correctly, so don't use it here.
1561 tooldir='${exec_prefix}'/${target_alias}
1562 build_tooldir=${tooldir}
1563
1564 # Generate default definitions for YACC, M4, LEX and other programs that run
1565 # on the build machine.  These are used if the Makefile can't locate these
1566 # programs in objdir.
1567 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1568 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1569 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1570 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1571 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1572 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1573 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1574
1575 # Create a .gdbinit file which runs the one in srcdir
1576 # and tells GDB to look there for source files.
1577
1578 if test -r ${srcdir}/.gdbinit ; then
1579   case ${srcdir} in
1580     .) ;;
1581     *) cat > ./.gdbinit <<EOF
1582 # ${NO_EDIT}
1583 dir ${srcdir}
1584 dir .
1585 source ${srcdir}/.gdbinit
1586 EOF
1587     ;;
1588   esac
1589 fi
1590
1591 # Make sure that the compiler is able to generate an executable.  If it
1592 # can't, we are probably in trouble.  We don't care whether we can run the
1593 # executable--we might be using a cross compiler--we only care whether it
1594 # can be created.  At this point the main configure script has set CC.
1595 we_are_ok=no
1596 echo "int main () { return 0; }" > conftest.c
1597 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1598 if test $? = 0 ; then
1599   if test -s conftest || test -s conftest.exe ; then
1600     we_are_ok=yes
1601   fi
1602 fi
1603 case $we_are_ok in
1604   no)
1605     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1606     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1607     rm -f conftest*
1608     exit 1
1609     ;;
1610 esac
1611 rm -f conftest*
1612
1613 # The Solaris /usr/ucb/cc compiler does not appear to work.
1614 case "${host}" in
1615   sparc-sun-solaris2*)
1616       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1617       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1618           could_use=
1619           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1620           if test -d /opt/cygnus/bin ; then
1621               if test "$could_use" = "" ; then
1622                   could_use="/opt/cygnus/bin"
1623               else
1624                   could_use="$could_use or /opt/cygnus/bin"
1625               fi
1626           fi
1627         if test "$could_use" = "" ; then
1628             echo "Warning: compilation may fail because you're using"
1629             echo "/usr/ucb/cc.  You should change your PATH or CC "
1630             echo "variable and rerun configure."
1631         else
1632             echo "Warning: compilation may fail because you're using"
1633             echo "/usr/ucb/cc, when you should use the C compiler from"
1634             echo "$could_use.  You should change your"
1635             echo "PATH or CC variable and rerun configure."
1636         fi
1637       fi
1638   ;;
1639 esac
1640
1641 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1642 # binutils tools will find libbfd.so.
1643 case "${enable_shared}" in
1644   no | "") SET_LIB_PATH= ;;
1645   *) SET_LIB_PATH="\$(REALLY_SET_LIB_PATH)" ;;
1646 esac
1647
1648 case "${host}" in
1649   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1650   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1651 esac
1652
1653 # Record target_configdirs and the configure arguments for target and
1654 # build configuration in Makefile.
1655 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1656 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1657
1658 # Determine whether gdb needs tk/tcl or not.
1659 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1660 # and in that case we want gdb to be built without tk.  Ugh!
1661 # In fact I believe gdb is the *only* package directly dependent on tk,
1662 # so we should be able to put the 'maybe's in unconditionally and
1663 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1664 # 100% sure that that's safe though.
1665
1666 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1667 case "$enable_gdbtk" in
1668   no)
1669     GDB_TK="" ;;
1670   yes)
1671     GDB_TK="${gdb_tk}" ;;
1672   *)
1673     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1674     # distro.  Eventually someone will fix this and move Insight, nee
1675     # gdbtk to a separate directory.
1676     if test -d ${srcdir}/gdb/gdbtk ; then
1677       GDB_TK="${gdb_tk}"
1678     else
1679       GDB_TK=""
1680     fi
1681     ;;
1682 esac
1683
1684 # Strip out unwanted targets.
1685
1686 # While at that, we remove Makefiles if we were started for recursive
1687 # configuration, so that the top-level Makefile reconfigures them,
1688 # like we used to do when configure itself was recursive.
1689
1690 # Loop over modules.  $extrasub must be used with care, limiting as
1691 # much as possible the usage of range addresses.  That's because autoconf
1692 # splits the sed script to overcome limits in the number of commands,
1693 # and relying on carefully-timed sed passes may turn out to be very hard
1694 # to maintain later.  In this particular case, you just have to be careful
1695 # not to nest @if/@endif pairs, because configure will not warn you at all.
1696
1697 AC_ARG_ENABLE([bootstrap],
1698 [  --enable-bootstrap     Enable bootstrapping [no]],,
1699 enable_bootstrap=no)
1700 if test -d ${srcdir}/gcc; then
1701   case "$host:$target:$enable_bootstrap" in
1702     $build:$build:yes | *:no) ;;
1703     *:yes) AC_MSG_ERROR([cannot bootstrap a cross-compiler]) ;;
1704     *) AC_MSG_ERROR([invalid option for --enable-bootstrap]) ;;
1705   esac
1706 else
1707   if test $enable_bootstrap = yes; then
1708     AC_MSG_ERROR([cannot bootstrap without a compiler])
1709   fi
1710 fi
1711
1712 case "$enable_bootstrap" in
1713   yes)
1714     default_target=bootstrap
1715     bootstrap_suffix=bootstrap ;;
1716   no)
1717     default_target=all
1718     bootstrap_suffix=no-bootstrap ;;
1719 esac
1720 AC_SUBST(default_target)
1721
1722 for module in ${build_configdirs} ; do
1723   if test -z "${no_recursion}" \
1724      && test -f ${build_subdir}/${module}/Makefile; then
1725     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1726     rm -f ${build_subdir}/${module}/Makefile
1727   fi
1728   extrasub="$extrasub
1729 /^@if build-$module\$/d
1730 /^@endif build-$module\$/d
1731 /^@if build-$module-$bootstrap_suffix\$/d
1732 /^@endif build-$module-$bootstrap_suffix\$/d"
1733 done
1734 for module in ${configdirs} ; do
1735   if test -z "${no_recursion}" \
1736      && test -f ${module}/Makefile; then
1737     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1738     rm -f ${module}/Makefile
1739   fi
1740   extrasub="$extrasub
1741 /^@if $module\$/d
1742 /^@endif $module\$/d
1743 /^@if $module-$bootstrap_suffix\$/d
1744 /^@endif $module-$bootstrap_suffix\$/d"
1745 done
1746 for module in ${target_configdirs} ; do
1747   if test -z "${no_recursion}" \
1748      && test -f ${target_subdir}/${module}/Makefile; then
1749     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1750     rm -f ${target_subdir}/${module}/Makefile
1751   fi
1752   extrasub="$extrasub
1753 /^@if target-$module\$/d
1754 /^@endif target-$module\$/d
1755 /^@if target-$module-$bootstrap_suffix\$/d
1756 /^@endif target-$module-$bootstrap_suffix\$/d"
1757 done
1758
1759 extrasub="$extrasub
1760 /^@if /,/^@endif /d"
1761
1762 # Create the serialization dependencies.  This uses a temporary file.
1763
1764 AC_ARG_ENABLE([serial-configure],
1765 [  --enable-serial-[{host,target,build}-]configure
1766                           Force sequential configuration of
1767                           sub-packages for the host, target or build
1768                           machine, or all sub-packages])
1769
1770 case ${enable_serial_configure} in
1771   yes)
1772     enable_serial_build_configure=yes
1773     enable_serial_host_configure=yes
1774     enable_serial_target_configure=yes
1775     ;;
1776 esac
1777
1778 # These force 'configure's to be done one at a time, to avoid problems
1779 # with contention over a shared config.cache.
1780 rm -f serdep.tmp
1781 echo '# serdep.tmp' > serdep.tmp
1782 olditem=
1783 test "x${enable_serial_build_configure}" = xyes &&
1784 for item in ${build_configdirs} ; do
1785   case ${olditem} in
1786     "") ;;
1787     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1788   esac
1789   olditem=${item}
1790 done
1791 olditem=
1792 test "x${enable_serial_host_configure}" = xyes &&
1793 for item in ${configdirs} ; do
1794   case ${olditem} in
1795     "") ;;
1796     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1797   esac
1798   olditem=${item}
1799 done
1800 olditem=
1801 test "x${enable_serial_target_configure}" = xyes &&
1802 for item in ${target_configdirs} ; do
1803   case ${olditem} in
1804     "") ;;
1805     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1806   esac
1807   olditem=${item}
1808 done
1809 serialization_dependencies=serdep.tmp
1810 AC_SUBST_FILE(serialization_dependencies)
1811
1812 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1813 # target and nonopt.  These are the ones we might not want to pass
1814 # down to subconfigures.  Also strip program-prefix, program-suffix,
1815 # and program-transform-name, so that we can pass down a consistent
1816 # program-transform-name.  If autoconf has put single quotes around
1817 # any of these arguments (because they contain shell metacharacters)
1818 # then this will fail; in practice this only happens for
1819 # --program-transform-name, so be sure to override --program-transform-name
1820 # at the end of the argument list.
1821 # These will be expanded by make, so quote '$'.
1822 cat <<\EOF_SED > conftestsed
1823 s/ --no[[^ ]]*/ /g
1824 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1825 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1826 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1827 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1828 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1829 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1830 s/ -cache-file[[= ]][[^ ]]*//g
1831 s/ -srcdir[[= ]][[^ ]]*//g
1832 s/ -host[[= ]][[^ ]]*//g
1833 s/ -build[[= ]][[^ ]]*//g
1834 s/ -target[[= ]][[^ ]]*//g
1835 s/ -program-prefix[[= ]][[^ ]]*//g
1836 s/ -program-suffix[[= ]][[^ ]]*//g
1837 s/ -program-transform-name[[= ]][[^ ]]*//g
1838 s/ [[^' -][^ ]*] / /
1839 s/^ *//;s/ *$//
1840 s,\$,$$,g
1841 EOF_SED
1842 sed -f conftestsed <<EOF_SED > conftestsed.out
1843  ${ac_configure_args}
1844 EOF_SED
1845 baseargs=`cat conftestsed.out`
1846 rm -f conftestsed conftestsed.out
1847
1848 # Add in --program-transform-name, after --program-prefix and
1849 # --program-suffix have been applied to it.  Autoconf has already
1850 # doubled dollar signs and backslashes in program_transform_name; we want
1851 # the backslashes un-doubled, and then the entire thing wrapped in single
1852 # quotes, because this will be expanded first by make and then by the shell.
1853 # Also, because we want to override the logic in subdir configure scripts to
1854 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1855 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1856 ${program_transform_name}
1857 EOF_SED
1858 gcc_transform_name=`cat conftestsed.out`
1859 rm -f conftestsed.out
1860 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1861
1862 # For the build-side libraries, we just need to pretend we're native,
1863 # and not use the same cache file.  Multilibs are neither needed nor
1864 # desired.
1865 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} ${baseargs}"
1866
1867 # For host modules, accept cache file option, or specification as blank.
1868 case "${cache_file}" in
1869 "") # empty
1870   cache_file_option="" ;;
1871 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1872   cache_file_option="--cache-file=${cache_file}" ;;
1873 *) # relative path
1874   cache_file_option="--cache-file=../${cache_file}" ;;
1875 esac
1876
1877 # Host dirs don't like to share a cache file either, horribly enough.
1878 # This seems to be due to autoconf 2.5x stupidity.
1879 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1880
1881 target_configargs=${baseargs}
1882
1883 # Passing a --with-cross-host argument lets the target libraries know
1884 # whether they are being built with a cross-compiler or being built
1885 # native.  However, it would be better to use other mechanisms to make the
1886 # sorts of decisions they want to make on this basis.  Please consider
1887 # this option to be deprecated.  FIXME.
1888 if test x${is_cross_compiler} = xyes ; then
1889   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1890 fi
1891
1892 # Default to --enable-multilib.
1893 if test x${enable_multilib} = x ; then
1894   target_configargs="--enable-multilib ${target_configargs}"
1895 fi
1896
1897 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1898 # changed from the earlier setting of with_newlib.
1899 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1900   target_configargs="--with-newlib ${target_configargs}"
1901 fi
1902
1903 # Different target subdirs use different values of certain variables
1904 # (notably CXX).  Worse, multilibs use *lots* of different values.
1905 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1906 # it doesn't automatically accept command-line overrides of them.
1907 # This means it's not safe for target subdirs to share a cache file,
1908 # which is disgusting, but there you have it.  Hopefully this can be
1909 # fixed in future.  It's still worthwhile to use a cache file for each
1910 # directory.  I think.
1911
1912 # Pass the appropriate --host, --build, and --cache-file arguments.
1913 target_configargs="--cache-file=./config.cache --host=${target_alias} --build=${build_alias} ${target_configargs}"
1914
1915 # provide a proper gxx_include_dir.
1916 # Note, if you change the default, make sure to fix both here and in
1917 # the gcc and libstdc++-v3 subdirectories.
1918 # Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
1919 case "${with_gxx_include_dir}" in
1920   yes)
1921     AC_MSG_ERROR([--with-gxx-include-dir=[[dir]] requires a directory])
1922     ;;
1923   no | "")
1924     case "${enable_version_specific_runtime_libs}" in
1925       yes) gxx_include_dir='${libsubdir}/include/c++' ;;
1926       *)
1927         . ${srcdir}/config.if
1928         gxx_include_dir='${prefix}/include/'${libstdcxx_incdir} ;;
1929     esac ;;
1930   *) gxx_include_dir=${with_gxx_include_dir} ;;
1931 esac
1932
1933 FLAGS_FOR_TARGET=
1934 case " $target_configdirs " in
1935  *" newlib "*)
1936   case " $target_configargs " in
1937   *" --with-newlib "*)
1938    case "$target" in
1939    *-cygwin*)
1940      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 $$s/winsup/w32api/include' ;;
1941    esac
1942
1943    # If we're not building GCC, don't discard standard headers.
1944    if test -d ${srcdir}/gcc; then
1945      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1946
1947      if test "${build}" != "${host}"; then
1948        # On Canadian crosses, CC_FOR_TARGET will have already been set
1949        # by `configure', so we won't have an opportunity to add -Bgcc/
1950        # to it.  This is right: we don't want to search that directory
1951        # for binaries, but we want the header files in there, so add
1952        # them explicitly.
1953        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
1954
1955        # Someone might think of using the pre-installed headers on
1956        # Canadian crosses, in case the installed compiler is not fully
1957        # compatible with the compiler being built.  In this case, it
1958        # would be better to flag an error than risking having
1959        # incompatible object files being constructed.  We can't
1960        # guarantee that an error will be flagged, but let's hope the
1961        # compiler will do it, when presented with incompatible header
1962        # files.
1963      fi
1964    fi
1965
1966    case "${target}-${is_cross_compiler}" in
1967    i[[3456789]]86-*-linux*-no)
1968       # Here host == target, so we don't need to build gcc,
1969       # so we don't want to discard standard headers.
1970       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
1971       ;;
1972    *)
1973       # If we're building newlib, use its generic headers last, but search
1974       # for any libc-related directories first (so make it the last -B
1975       # switch).
1976       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1977       ;;
1978    esac
1979    ;;
1980   esac
1981   ;;
1982 esac
1983
1984 # Allow the user to override the flags for
1985 # our build compiler if desired.
1986 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
1987
1988 # On Canadian crosses, we'll be searching the right directories for
1989 # the previously-installed cross compiler, so don't bother to add
1990 # flags for directories within the install tree of the compiler
1991 # being built; programs in there won't even run.
1992 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
1993   # Search for pre-installed headers if nothing else fits.
1994   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
1995 fi
1996
1997 if test "x${use_gnu_ld}" = x &&
1998    echo " ${configdirs} " | grep " ld " > /dev/null ; then
1999   # Arrange for us to find uninstalled linker scripts.
2000   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
2001 fi
2002
2003 if test "x${CC_FOR_TARGET+set}" = xset; then
2004   :
2005 elif test -d ${srcdir}/gcc; then
2006   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
2007 elif test "$host" = "$target"; then
2008   CC_FOR_TARGET='$(CC)'
2009 else
2010   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
2011 fi
2012 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2013
2014 if test "x${GCJ_FOR_TARGET+set}" = xset; then
2015   :
2016 elif test -d ${srcdir}/gcc; then
2017   GCJ_FOR_TARGET='$$r/gcc/gcj -B$$r/gcc/'
2018 elif test "$host" = "$target"; then
2019   GCJ_FOR_TARGET='gcj'
2020 else
2021   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
2022 fi
2023 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2024
2025 if test "x${GFORTRAN_FOR_TARGET+set}" = xset; then
2026   :
2027 elif test -d ${srcdir}/gcc; then
2028   GFORTRAN_FOR_TARGET='$$r/gcc/gfortran -B$$r/gcc/'
2029 elif test "$host" = "$target"; then
2030   GFORTRAN_FOR_TARGET='gfortran'
2031 else
2032   GFORTRAN_FOR_TARGET=`echo gfortran | sed "${program_transform_name}"`
2033 fi
2034 case $GFORTRAN_FOR_TARGET in
2035 *' $(FLAGS_FOR_TARGET)') ;;
2036 *) GFORTRAN_FOR_TARGET=$GFORTRAN_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
2037 esac
2038
2039 # Don't use libstdc++-v3's flags to configure/build itself.
2040 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'
2041 raw_libstdcxx_flags='-L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2042
2043 if test "x${CXX_FOR_TARGET+set}" = xset; then
2044   if test "x${RAW_CXX_FOR_TARGET+set}" != xset; then
2045     RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2046   fi
2047 elif test -d ${srcdir}/gcc; then
2048   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
2049   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
2050   # default whereas gcc does not.
2051   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
2052   # all other cases.
2053   CXX_FOR_TARGET='$$r/gcc/g++ -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
2054   RAW_CXX_FOR_TARGET='$$r/gcc/xgcc -shared-libgcc -B$$r/gcc/ -nostdinc++ '$raw_libstdcxx_flags
2055 elif test "$host" = "$target"; then
2056   CXX_FOR_TARGET='$(CXX)'
2057   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2058 else
2059   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
2060   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2061 fi
2062 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2063 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2064
2065 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2066 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2067
2068 # We want to defer the evaluation of `cmd`s and shell variables in
2069 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
2070 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
2071 # quotes, but we still have to duplicate `$'s so that shell variables
2072 # can be expanded by the nested make as shell variables, not as make
2073 # macros.
2074 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2075 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2076
2077 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
2078 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
2079 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
2080 GFORTRAN_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GFORTRAN_FOR_TARGET}"
2081 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
2082 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
2083 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
2084 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
2085
2086 # Makefile fragments.
2087 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2088 do
2089   eval fragval=\$$frag
2090   if test $fragval != /dev/null; then
2091     eval $frag=${srcdir}/$fragval
2092   fi
2093 done
2094 AC_SUBST_FILE(host_makefile_frag)
2095 AC_SUBST_FILE(target_makefile_frag)
2096 AC_SUBST_FILE(alphaieee_frag)
2097 AC_SUBST_FILE(ospace_frag)
2098
2099 # Miscellanea: directories, flags, etc.
2100 AC_SUBST(SET_LIB_PATH)
2101 AC_SUBST(RPATH_ENVVAR)
2102 AC_SUBST(BUILD_PREFIX)
2103 AC_SUBST(BUILD_PREFIX_1)
2104 AC_SUBST(gcc_version_trigger)
2105 AC_SUBST(gcc_version)
2106 AC_SUBST(tooldir)
2107 AC_SUBST(build_tooldir)
2108 AC_SUBST(GDB_TK)
2109 AC_SUBST(gxx_include_dir)
2110 AC_SUBST(libstdcxx_incdir)
2111
2112 # Build module lists & subconfigure args.
2113 AC_SUBST(build_configargs)
2114 AC_SUBST(build_configdirs)
2115
2116 # Host module lists & subconfigure args.
2117 AC_SUBST(host_configargs)
2118 AC_SUBST(configdirs)
2119
2120 # Target module lists & subconfigure args.
2121 AC_SUBST(target_configargs)
2122 AC_SUBST(target_configdirs)
2123
2124 # Build tools.
2125 AC_SUBST(CC_FOR_BUILD)
2126 AC_SUBST(config_shell)
2127
2128 # Host tools.
2129 NCN_STRICT_CHECK_TOOL(AR, ar)
2130 NCN_STRICT_CHECK_TOOL(AS, as)
2131 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2132 NCN_STRICT_CHECK_TOOL(LD, ld)
2133 NCN_STRICT_CHECK_TOOL(NM, nm)
2134 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2135 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2136 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2137 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2138 AC_SUBST(CC)
2139 AC_SUBST(CXX)
2140 AC_SUBST(CFLAGS)
2141 AC_SUBST(CFLAGS_FOR_BUILD)
2142 AC_SUBST(CXXFLAGS)
2143
2144 # Target tools.
2145 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AR_FOR_TARGET, ar)
2146 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AS_FOR_TARGET, as)
2147 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_DLLTOOL_FOR_TARGET, dlltool)
2148 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_LD_FOR_TARGET, ld)
2149 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_NM_FOR_TARGET, nm)
2150 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_RANLIB_FOR_TARGET, ranlib, :)
2151 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_WINDRES_FOR_TARGET, windres)
2152
2153 AC_SUBST(GCC_FOR_TARGET)
2154 AC_SUBST(FLAGS_FOR_TARGET)
2155 AC_SUBST(CC_FOR_TARGET)
2156 AC_SUBST(GCJ_FOR_TARGET)
2157 AC_SUBST(GFORTRAN_FOR_TARGET)
2158 AC_SUBST(CXX_FOR_TARGET)
2159 AC_SUBST(RAW_CXX_FOR_TARGET)
2160 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2161 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2162
2163 # Fix up target tools.
2164 if test "x${build}" = "x${host}" ; then
2165   # In this case, the newly built tools can and should be used,
2166   # so we override the results of the autoconf tests.
2167   # This should really only happen when the tools are actually being built,
2168   # but that's a further refinement.  The new build scheme, where
2169   # tools are built into a structure paralleling where they're installed,
2170   # should also eliminate all of this cleanly.
2171   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2172   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2173   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2174   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2175   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2176   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2177   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2178 else
2179   # Just use the ones we found.
2180   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2181   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2182   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2183   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2184   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2185   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2186   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2187 fi
2188 AC_SUBST(AR_FOR_TARGET)
2189 AC_SUBST(AS_FOR_TARGET)
2190 AC_SUBST(DLLTOOL_FOR_TARGET)
2191 AC_SUBST(LD_FOR_TARGET)
2192 AC_SUBST(NM_FOR_TARGET)
2193 AC_SUBST(RANLIB_FOR_TARGET)
2194 AC_SUBST(WINDRES_FOR_TARGET)
2195
2196 # Certain tools may need extra flags.
2197 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2198 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2199 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2200
2201 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2202 AC_ARG_ENABLE(maintainer-mode,
2203 [  --enable-maintainer-mode enable make rules and dependencies not useful
2204                           (and sometimes confusing) to the casual installer],
2205       USE_MAINTAINER_MODE=$enableval,
2206       USE_MAINTAINER_MODE=no)
2207 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2208 AC_SUBST(MAINTAINER_MODE_TRUE)
2209 AC_SUBST(MAINTAINER_MODE_FALSE)
2210 if test "$USE_MAINTAINER_MODE" = yes; then
2211   MAINTAINER_MODE_TRUE=
2212   MAINTAINER_MODE_FALSE='#'
2213 else
2214   MAINTAINER_MODE_TRUE='#'
2215   MAINTAINER_MODE_FALSE=
2216 fi
2217 MAINT=$MAINTAINER_MODE_TRUE
2218 AC_SUBST(MAINT)dnl
2219
2220 # ---------------------
2221 # GCC bootstrap support
2222 # ---------------------
2223
2224 # Stage specific cflags for build.
2225 stage1_cflags="-g"
2226 case $build in
2227   vax-*-*)
2228     case ${GCC} in
2229       yes) stage1_cflags="-g -Wa,-J" ;;
2230       *) stage1_cflags="-g -J" ;;
2231     esac ;;
2232   powerpc-*-darwin*)
2233     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2234     # sources; use -no-cpp-precomp to get to GNU cpp.
2235     # Apple's GCC has bugs in designated initializer handling, so disable
2236     # that too.
2237     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2238     ;;
2239 esac
2240 AC_SUBST(stage1_cflags)
2241
2242 # It makes debugging easier if we create as symlinks the stage directories
2243 # gcc for stageN-gcc and stage-prev for stage(N-1).  In case this is not
2244 # possible, however, we can resort to mv.
2245 AC_CACHE_CHECK([if symbolic links between directories work],
2246 [gcc_cv_prog_ln_s_dir],
2247 [if test "${LN_S}" = "ln -s" \
2248    && mkdir confdir.s1 \
2249    && ln -s confdir.s1 confdir.s2 \
2250    && echo timestamp1 > confdir.s1/conftest.1 \
2251    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2252    && echo timestamp2 > confdir.s2/conftest.2 \
2253    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2254    && rm -f confdir.s2; then
2255   gcc_cv_prog_ln_s_dir=yes
2256 else
2257   gcc_cv_prog_ln_s_dir=yes
2258 fi
2259 rm -rf confdir.s1 confdir.s2])
2260
2261 case ${gcc_cv_prog_ln_s_dir} in
2262   yes)
2263     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2264     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2265   *)
2266     CREATE_LINK_TO_DIR='mv $$1 $$2'
2267     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2268 esac
2269 AC_SUBST(CREATE_LINK_TO_DIR)
2270 AC_SUBST(UNDO_LINK_TO_DIR)
2271
2272 # Enable -Werror in bootstrap stage2 and later.
2273 # Change the default to "no" on release branches.
2274 AC_ARG_ENABLE(werror,
2275 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2276 [enable_werror=yes])
2277 case ${enable_werror} in
2278   yes) stage2_werror_flag="--enable-werror-always" ;;
2279   *) stage2_werror_flag="" ;;
2280 esac
2281 AC_SUBST(stage2_werror_flag)
2282
2283 AC_OUTPUT(Makefile)