configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   2 #   2000, 2001, 2002, 2003, 2004, 2005, 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  84
  85 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
  86 # a relative path.
  87 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
  88   INSTALL="${srcpwd}/install-sh -c"
  89 fi
  90
  91 # Set srcdir to "." if that's what it is.
  92 # This is important for multilib support.
  93 pwd=`${PWDCMD-pwd}`
  94 if test "${pwd}" = "${srcpwd}" ; then
  95   srcdir=.
  96 fi
  97
  98 topsrcdir=$srcpwd
  99
 100 extra_host_args=
 101
 102 ### To add a new directory to the tree, first choose whether it is a target
 103 ### or a host dependent tool.  Then put it into the appropriate list
 104 ### (library or tools, host or target), doing a dependency sort.
 105
 106 # Subdirs will be configured in the order listed in build_configdirs,
 107 # configdirs, or target_configdirs; see the serialization section below.
 108
 109 # Dependency sorting is only needed when *configuration* must be done in
 110 # a particular order.  In all cases a dependency should be specified in
 111 # the Makefile, whether or not it's implicitly specified here.
 112
 113 # Double entries in build_configdirs, configdirs, or target_configdirs may
 114 # cause circular dependencies and break everything horribly.
 115
 116 # these library is used by various programs built for the build
 117 # environment
 118 #
 119 build_libs="build-libiberty"
 120
 121 # these tools are built for the build environment
 122 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 123
 124 # these libraries are used by various programs built for the host environment
 125 #
 126 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber"
 127
 128 # these tools are built for the host environment
 129 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 130 # know that we are building the simulator.
 131 # binutils, gas and ld appear in that order because it makes sense to run
 132 # "make check" in that particular order.
 133 host_tools="texinfo byacc flex bison binutils gas ld fixincludes 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 gnattools"
 134
 135 # libgcj represents the runtime libraries only used by gcj.
 136 libgcj="target-libffi \
 137         target-boehm-gc \
 138         target-zlib \
 139         target-qthreads \
 140         target-libjava"
 141
 142 # these libraries are built for the target environment, and are built after
 143 # the host libraries and the host tools (which may be a cross compiler)
 144 #
 145 target_libraries="target-libiberty \
 146                 target-libgloss \
 147                 target-newlib \
 148                 target-libstdc++-v3 \
 149                 target-libmudflap \
 150                 target-libssp \
 151                 target-libgcc-math \
 152                 target-libgfortran \
 153                 ${libgcj} \
 154                 target-libobjc \
 155                 target-libada \
 156                 target-libgomp"
 157
 158 # these tools are built using the target libraries, and are intended to
 159 # run only in the target environment
 160 #
 161 # note: any program that *uses* libraries that are in the "target_libraries"
 162 # list belongs in this list.  those programs are also very likely
 163 # candidates for the "native_only" list which follows
 164 #
 165 target_tools="target-examples target-groff target-gperf target-rda"
 166
 167 ################################################################################
 168
 169 ## All tools belong in one of the four categories, and are assigned above
 170 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 171 ## is important because configure will choke if they ever get through.
 172 ## ${configdirs} is directories we build using the host tools.
 173 ## ${target_configdirs} is directories we build using the target tools.
 174 configdirs=`echo ${host_libs} ${host_tools}`
 175 target_configdirs=`echo ${target_libraries} ${target_tools}`
 176 build_configdirs=`echo ${build_libs} ${build_tools}`
 177
 178 ################################################################################
 179
 180 srcname="gnu development package"
 181
 182 # This gets set non-empty for some net releases of packages.
 183 appdirs=""
 184
 185 # Define is_cross_compiler to save on calls to 'test'.
 186 is_cross_compiler=
 187 if test x"${host}" = x"${target}" ; then
 188   is_cross_compiler=no
 189 else
 190   is_cross_compiler=yes
 191 fi
 192
 193 # Find the build and target subdir names.
 194 GCC_TOPLEV_SUBDIRS
 195
 196 # Skipdirs are removed silently.
 197 skipdirs=
 198 # Noconfigdirs are removed loudly.
 199 noconfigdirs=""
 200
 201 use_gnu_ld=
 202 # Make sure we don't let GNU ld be added if we didn't want it.
 203 if test x$with_gnu_ld = xno ; then
 204   use_gnu_ld=no
 205   noconfigdirs="$noconfigdirs ld"
 206 fi
 207
 208 use_gnu_as=
 209 # Make sure we don't let GNU as be added if we didn't want it.
 210 if test x$with_gnu_as = xno ; then
 211   use_gnu_as=no
 212   noconfigdirs="$noconfigdirs gas"
 213 fi
 214
 215 # some tools are so dependent upon X11 that if we're not building with X,
 216 # it's not even worth trying to configure, much less build, that tool.
 217
 218 case ${with_x} in
 219   yes | "") ;; # the default value for this tree is that X11 is available
 220   no)
 221     skipdirs="${skipdirs} tk itcl libgui"
 222     # We won't be able to build gdbtk without X.
 223     enable_gdbtk=no
 224     ;;
 225   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 226 esac
 227
 228 # Some tools are only suitable for building in a "native" situation.
 229 # Remove these if host!=target.
 230 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"
 231
 232 # Similarly, some are only suitable for cross toolchains.
 233 # Remove these if host=target.
 234 cross_only="target-libgloss target-newlib target-opcodes"
 235
 236 case $is_cross_compiler in
 237   no) skipdirs="${skipdirs} ${cross_only}" ;;
 238   yes) skipdirs="${skipdirs} ${native_only}" ;;
 239 esac
 240
 241 # If both --with-headers and --with-libs are specified, default to
 242 # --without-newlib.
 243 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 244    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 245   if test x"${with_newlib}" = x ; then
 246     with_newlib=no
 247   fi
 248 fi
 249
 250 # Recognize --with-newlib/--without-newlib.
 251 case ${with_newlib} in
 252   no) skipdirs="${skipdirs} target-newlib" ;;
 253   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 254 esac
 255
 256 # Configure extra directories which are host specific
 257
 258 case "${host}" in
 259   *-cygwin*)
 260     configdirs="$configdirs libtermcap" ;;
 261 esac
 262
 263 # A target can indicate whether a language isn't supported for some reason.
 264 # Only spaces may be used in this macro; not newlines or tabs.
 265 unsupported_languages=
 266
 267 # Remove more programs from consideration, based on the host or
 268 # target this usually means that a port of the program doesn't
 269 # exist yet.
 270
 271 case "${host}" in
 272   hppa*64*-*-*)
 273     noconfigdirs="$noconfigdirs byacc"
 274     ;;
 275   i[[3456789]]86-*-vsta)
 276     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 277     ;;
 278   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 279     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 280     ;;
 281   i[[3456789]]86-*-mingw32*)
 282     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 283     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 284     ;;
 285   i[[3456789]]86-*-beos*)
 286     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 287     ;;
 288   *-*-cygwin*)
 289     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 290     ;;
 291   *-*-netbsd*)
 292     noconfigdirs="$noconfigdirs rcs"
 293     ;;
 294   ppc*-*-pe)
 295     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 296     ;;
 297   powerpc-*-beos*)
 298     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 299     ;;
 300 esac
 301
 302
 303 AC_ARG_ENABLE(libada,
 304 [  --enable-libada        Builds libada directory],
 305 ENABLE_LIBADA=$enableval,
 306 ENABLE_LIBADA=yes)
 307 if test "${ENABLE_LIBADA}" != "yes" ; then
 308   noconfigdirs="$noconfigdirs target-libada"
 309   noconfigdirs="$noconfigdirs gnattools"
 310 fi
 311
 312 AC_ARG_ENABLE(libssp,
 313 [  --enable-libssp        Builds libssp directory],
 314 ENABLE_LIBSSP=$enableval,
 315 ENABLE_LIBSSP=yes)
 316 if test "${ENABLE_LIBSSP}" != "yes" ; then
 317   noconfigdirs="$noconfigdirs target-libssp"
 318 fi
 319
 320 # Set the default so we build libgcc-math for ix86 and x86_64
 321 AC_ARG_ENABLE(libgcc-math,
 322 [  --enable-libgcc-math   Builds libgcc-math directory],,
 323 [
 324 case "${target}" in
 325   i?86-* | x86_64-* )
 326     enable_libgcc_math=yes ;;
 327   *)
 328     enable_libgcc_math=no ;;
 329 esac
 330 ])
 331 if test "${enable_libgcc_math}" != "yes"; then
 332   noconfigdirs="$noconfigdirs target-libgcc-math"
 333 fi
 334
 335 # Save it here so that, even in case of --enable-libgcj, if the Java
 336 # front-end isn't enabled, we still get libgcj disabled.
 337 libgcj_saved=$libgcj
 338 case $enable_libgcj in
 339 yes)
 340   # If we reset it here, it won't get added to noconfigdirs in the
 341   # target-specific build rules, so it will be forcibly enabled
 342   # (unless the Java language itself isn't enabled).
 343   libgcj=
 344   ;;
 345 no)
 346   # Make sure we get it printed in the list of not supported target libs.
 347   noconfigdirs="$noconfigdirs ${libgcj}"
 348   ;;
 349 esac
 350
 351
 352 # Allow --disable-libmudflap to exclude target-libmudflap
 353 case $enable_libmudflap in
 354 yes)
 355     ;;
 356 no)
 357     noconfigdirs="$noconfigdirs target-libmudflap"
 358     ;;
 359 "")
 360     case "${target}" in
 361     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 362         # Enable libmudflap by default in GNU and friends.
 363         ;;
 364     *-*-freebsd*)
 365         # Enable libmudflap by default in FreeBSD.
 366         ;;
 367     *)
 368         # Disable it by default everywhere else.
 369         noconfigdirs="$noconfigdirs target-libmudflap"
 370         ;;
 371     esac
 372 esac
 373
 374 # Allow --disable-libgomp to exclude target-libgomp
 375 case $enable_libgomp in
 376 yes)
 377     ;;
 378 no)
 379     noconfigdirs="$noconfigdirs target-libgomp"
 380     ;;
 381 "")
 382     # Enable libgomp by default on hosted POSIX systems.
 383     case "${target}" in
 384     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 385         ;;
 386     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 387         ;;
 388     *-*-solaris2* | *-*-sysv4* | *-*-irix* | *-*-osf* | *-*-hpux*)
 389         ;;
 390     *-*-darwin* | *-*-aix*)
 391         ;;
 392     *)
 393         noconfigdirs="$noconfigdirs target-libgomp"
 394         ;;
 395     esac
 396 esac
 397
 398
 399 case "${target}" in
 400   *-*-chorusos)
 401     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 402     ;;
 403   powerpc-*-darwin*)
 404     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 405     noconfigdirs="$noconfigdirs sim target-rda"
 406     ;;
 407   *-*-darwin*)
 408     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 409     noconfigdirs="$noconfigdirs sim target-rda"
 410     noconfigdirs="$noconfigdirs ${libgcj}"
 411     ;;
 412   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 413     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 414     ;;
 415   *-*-freebsd*)
 416     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 417     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 418         && test -f /usr/local/include/gmp.h; then
 419       with_gmp=/usr/local
 420     fi
 421
 422     # Skip some stuff that's unsupported on some FreeBSD configurations.
 423     case "${target}" in
 424       i*86-*-*) ;;
 425       alpha*-*-*) ;;
 426       *)
 427         noconfigdirs="$noconfigdirs ${libgcj}"
 428         ;;
 429     esac
 430     ;;
 431   *-*-kaos*)
 432     # Remove unsupported stuff on all kaOS configurations.
 433     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 434     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 435     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 436     noconfigdirs="$noconfigdirs target-libgloss"
 437     ;;
 438   *-*-netbsd*)
 439     # Skip some stuff on all NetBSD configurations.
 440     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 441
 442     # Skip some stuff that's unsupported on some NetBSD configurations.
 443     case "${target}" in
 444       i*86-*-netbsdelf*) ;;
 445       arm*-*-netbsdelf*) ;;
 446       *)
 447         noconfigdirs="$noconfigdirs ${libgcj}"
 448         ;;
 449     esac
 450     ;;
 451   *-*-netware*)
 452     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 453     ;;
 454   *-*-rtems*)
 455     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 456     ;;
 457     # The tpf target doesn't support gdb yet.
 458   *-*-tpf*)
 459     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 460     ;;
 461   *-*-uclinux*)
 462     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 463     ;;
 464   *-*-vxworks*)
 465     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 466     ;;
 467   m32c-*-*)
 468     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 469     ;;
 470   alpha*-dec-osf*)
 471     # ld works, but does not support shared libraries.
 472     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 473     # gas doesn't generate exception information.
 474     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 475     ;;
 476   alpha*-*-*vms*)
 477     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 478     ;;
 479   alpha*-*-linux*)
 480     # newlib is not 64 bit ready
 481     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 482     ;;
 483   alpha*-*-*)
 484     # newlib is not 64 bit ready
 485     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 486     ;;
 487   am33_2.0-*-linux*)
 488     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 489     ;;
 490   sh-*-linux*)
 491     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 492     ;;
 493   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 494     noconfigdirs="$noconfigdirs ${libgcj}"
 495     noconfigdirs="$noconfigdirs target-examples"
 496     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 497     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 498     noconfigdirs="$noconfigdirs expect dejagnu"
 499     # the C++ libraries don't build on top of CE's C libraries
 500     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 501     noconfigdirs="$noconfigdirs target-newlib"
 502     case "${host}" in
 503       *-*-cygwin*) ;; # keep gdb and readline
 504       *) noconfigdirs="$noconfigdirs gdb readline"
 505          ;;
 506     esac
 507     ;;
 508   arc-*-*)
 509     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 510     ;;
 511   arm-semi-aof )
 512     ;;
 513   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 514     noconfigdirs="$noconfigdirs ${libgcj}"
 515     ;;
 516   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 517     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 518     ;;
 519   arm*-*-linux-gnueabi)
 520     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 521     noconfigdirs="$noconfigdirs target-libjava target-libobjc"
 522     ;;
 523   arm*-*-symbianelf*)
 524     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 525     ;;
 526   arm-*-pe*)
 527     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 528     ;;
 529   thumb-*-coff)
 530     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 531     ;;
 532   thumb-*-elf)
 533     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 534     ;;
 535   thumb-*-pe)
 536     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 537     ;;
 538   arm-*-riscix*)
 539     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 540     ;;
 541   avr-*-*)
 542     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 543     ;;
 544   bfin-*-*)
 545     noconfigdirs="$noconfigdirs target-libgloss gdb"
 546     if test x${is_cross_compiler} != xno ; then
 547       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 548     fi
 549     ;;
 550   c4x-*-* | tic4x-*-*)
 551     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 552     ;;
 553   c54x*-*-* | tic54x-*-*)
 554     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 555     ;;
 556   cris-*-* | crisv32-*-*)
 557     unsupported_languages="$unsupported_languages java"
 558     case "${target}" in
 559       *-*-aout)
 560         unsupported_languages="$unsupported_languages fortran"
 561         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 562       *-*-elf)
 563         unsupported_languages="$unsupported_languages fortran"
 564         noconfigdirs="$noconfigdirs target-boehm-gc";;
 565       *-*-linux*)
 566         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 567       *)
 568         unsupported_languages="$unsupported_languages fortran"
 569         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 570     esac
 571     ;;
 572   crx-*-*)
 573     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 574     ;;
 575   d10v-*-*)
 576     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 577     ;;
 578   d30v-*-*)
 579     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 580     ;;
 581   fr30-*-elf*)
 582     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 583     ;;
 584   frv-*-*)
 585     noconfigdirs="$noconfigdirs ${libgcj}"
 586     ;;
 587   h8300*-*-*)
 588     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 589     ;;
 590   h8500-*-*)
 591     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 592     ;;
 593   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 594     ;;
 595   hppa*64*-*-linux* | parisc*64*-*-linux*)
 596     # In this case, it's because the hppa64-linux target is for
 597     # the kernel only at this point and has no libc, and thus no
 598     # headers, crt*.o, etc., all of which are needed by these.
 599     noconfigdirs="$noconfigdirs target-zlib"
 600     ;;
 601   parisc*-*-linux* | hppa*-*-linux*)
 602     ;;
 603   hppa*-*-*elf* | \
 604   hppa*-*-lites* | \
 605   hppa*-*-openbsd* | \
 606   hppa*64*-*-*)
 607     noconfigdirs="$noconfigdirs ${libgcj}"
 608     ;;
 609   hppa*-*-*)
 610     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 611     # build on HP-UX 10.20.
 612     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 613     ;;
 614   i960-*-*)
 615     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 616     ;;
 617   ia64*-*-elf*)
 618     # No gdb support yet.
 619     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 620     ;;
 621   ia64*-**-hpux*)
 622     # No gdb or ld support yet.
 623     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 624     ;;
 625   i370-*-opened*)
 626     ;;
 627   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 628     noconfigdirs="$noconfigdirs ${libgcj}"
 629     ;;
 630   i[[3456789]]86-*-linux*)
 631     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 632     # not build java stuff by default.
 633     case "${target}" in
 634       *-*-*libc1*)
 635         noconfigdirs="$noconfigdirs ${libgcj}";;
 636     esac
 637
 638     # This section makes it possible to build newlib natively on linux.
 639     # If we are using a cross compiler then don't configure newlib.
 640     if test x${is_cross_compiler} != xno ; then
 641       noconfigdirs="$noconfigdirs target-newlib"
 642     fi
 643     noconfigdirs="$noconfigdirs target-libgloss"
 644     # If we are not using a cross compiler, do configure newlib.
 645     # Note however, that newlib will only be configured in this situation
 646     # if the --with-newlib option has been given, because otherwise
 647     # 'target-newlib' will appear in skipdirs.
 648     ;;
 649   i[[3456789]]86-*-mingw32*)
 650     target_configdirs="$target_configdirs target-mingw"
 651     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 652
 653     # Can't build gdb for mingw32 if not native.
 654     case "${host}" in
 655       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 656       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 657          ;;
 658     esac
 659     ;;
 660   *-*-cygwin*)
 661     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 662     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 663     # always build newlib if winsup directory is present.
 664     if test -d "$srcdir/winsup"; then
 665       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 666     elif test -d "$srcdir/newlib"; then
 667       echo "Warning: winsup is missing so newlib can't be built."
 668     fi
 669
 670     # Can't build gdb for Cygwin if not native.
 671     case "${host}" in
 672       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 673       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 674          ;;
 675     esac
 676     ;;
 677   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 678   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 679     ;;
 680   i[[3456789]]86-*-pe)
 681     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 682     ;;
 683   i[[3456789]]86-*-sco3.2v5*)
 684     # The linker does not yet know about weak symbols in COFF,
 685     # and is not configured to handle mixed ELF and COFF.
 686     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 687     ;;
 688   i[[3456789]]86-*-sco*)
 689     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 690     ;;
 691   i[[3456789]]86-*-solaris2*)
 692     noconfigdirs="$noconfigdirs target-libgloss"
 693     ;;
 694   i[[3456789]]86-*-sysv4*)
 695     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 696     ;;
 697   i[[3456789]]86-*-beos*)
 698     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 699     ;;
 700   i[[3456789]]86-*-rdos*)
 701     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 702     ;;
 703   m32r-*-*)
 704     noconfigdirs="$noconfigdirs ${libgcj}"
 705     ;;
 706   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 707     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 708     ;;
 709   m68k-*-elf*)
 710     noconfigdirs="$noconfigdirs ${libgcj}"
 711     ;;
 712   m68k-*-coff*)
 713     noconfigdirs="$noconfigdirs ${libgcj}"
 714     ;;
 715   mcore-*-pe*)
 716   # The EPOC C++ environment does not support exceptions or rtti,
 717   # and so building libstdc++-v3 tends not to always work.
 718     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 719     ;;
 720   mmix-*-*)
 721     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 722     unsupported_languages="$unsupported_languages fortran java"
 723     ;;
 724   mn10200-*-*)
 725     noconfigdirs="$noconfigdirs ${libgcj}"
 726     ;;
 727   mn10300-*-*)
 728     noconfigdirs="$noconfigdirs ${libgcj}"
 729     ;;
 730   mt-*-*)
 731     noconfigdirs="$noconfigdirs sim"
 732     ;;
 733   powerpc-*-aix*)
 734     # copied from rs6000-*-* entry
 735     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 736     ;;
 737   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 738     target_configdirs="$target_configdirs target-winsup"
 739     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 740     # always build newlib.
 741     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 742     ;;
 743     # This is temporary until we can link against shared libraries
 744   powerpcle-*-solaris*)
 745     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 746     ;;
 747   powerpc-*-beos*)
 748     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 749     ;;
 750   powerpc-*-eabi)
 751     noconfigdirs="$noconfigdirs ${libgcj}"
 752     ;;
 753   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 754     ;;
 755   rs6000-*-lynxos*)
 756     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 757     ;;
 758   rs6000-*-aix*)
 759     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 760     ;;
 761   rs6000-*-*)
 762     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 763     ;;
 764   m68k-apollo-*)
 765     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 766     ;;
 767   mips*-*-irix5*)
 768     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 769     ;;
 770   mips*-*-irix6*)
 771     # Linking libjava exceeds command-line length limits on at least
 772     # IRIX 6.2, but not on IRIX 6.5.
 773     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 774     # <oldham@codesourcery.com>
 775     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 776     ;;
 777   mips*-dec-bsd*)
 778     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 779     ;;
 780   mips*-*-bsd*)
 781     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 782     ;;
 783   mipstx39-*-*)
 784     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 785     ;;
 786   mips64*-*-linux*)
 787     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 788     ;;
 789   mips*-*-linux*)
 790     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 791     ;;
 792   mips*-*-*)
 793     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 794     ;;
 795   romp-*-*)
 796     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 797     ;;
 798   sh-*-* | sh64-*-*)
 799     case "${host}" in
 800       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 801       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 802       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 803       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 804     esac
 805     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 806     ;;
 807   sparc-*-elf*)
 808     noconfigdirs="$noconfigdirs ${libgcj}"
 809     ;;
 810   sparc64-*-elf*)
 811     noconfigdirs="$noconfigdirs ${libgcj}"
 812     ;;
 813   sparclite-*-*)
 814     noconfigdirs="$noconfigdirs ${libgcj}"
 815     ;;
 816   sparc-*-sunos4*)
 817     noconfigdirs="$noconfigdirs ${libgcj}"
 818     if test x${is_cross_compiler} != xno ; then
 819            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 820     else
 821            use_gnu_ld=no
 822     fi
 823     ;;
 824   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 825     noconfigdirs="$noconfigdirs ${libgcj}"
 826     ;;
 827   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 828     ;;
 829   v810-*-*)
 830     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 831     ;;
 832   v850-*-*)
 833     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 834     ;;
 835   v850e-*-*)
 836     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 837     ;;
 838   v850ea-*-*)
 839     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 840     ;;
 841   vax-*-vms)
 842     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 843     ;;
 844   vax-*-*)
 845     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 846     ;;
 847   xtensa-*-*)
 848     noconfigdirs="$noconfigdirs ${libgcj}"
 849     ;;
 850   ip2k-*-*)
 851     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 852     ;;
 853   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 854     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 855     ;;
 856   *-*-lynxos*)
 857     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 858     ;;
 859   *-*-*)
 860     noconfigdirs="$noconfigdirs ${libgcj}"
 861     ;;
 862 esac
 863
 864 # If we aren't building newlib, then don't build libgloss, since libgloss
 865 # depends upon some newlib header files.
 866 case "${noconfigdirs}" in
 867   *target-libgloss*) ;;
 868   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 869 esac
 870
 871 # Work in distributions that contain no compiler tools, like Autoconf.
 872 tentative_cc=""
 873 host_makefile_frag=/dev/null
 874 if test -d ${srcdir}/config ; then
 875 case "${host}" in
 876   m68k-hp-hpux*)
 877     # Avoid "too much defining" errors from HPUX compiler.
 878     tentative_cc="cc -Wp,-H256000"
 879     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 880     # If it's HP/UX ar, this should be harmless.
 881     RANLIB="ar ts"
 882     ;;
 883   m68k-apollo-sysv*)
 884     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 885     ;;
 886   m68k-apollo-bsd*)
 887     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 888     # chokes on bfd, the compiler won't let you assign integers to enums, and
 889     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 890     # the apollo compiler" (the preferred version of GCC could be called cc,
 891     # or whatever), but I'm not sure leaving CC as cc is any better...
 892     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 893     # Used to have BISON=yacc.
 894     tentative_cc=gcc
 895     ;;
 896   m88k-dg-dgux*)
 897     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 898     ;;
 899   m88k-harris-cxux*)
 900     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 901     tentative_cc="cc -Xa"
 902     host_makefile_frag="config/mh-cxux"
 903     ;;
 904   m88k-motorola-sysv*)
 905     ;;
 906   mips*-dec-ultrix*)
 907     tentative_cc="cc -Wf,-XNg1000"
 908     host_makefile_frag="config/mh-decstation"
 909     ;;
 910   mips*-nec-sysv4*)
 911     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 912     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 913     host_makefile_frag="config/mh-necv4"
 914     ;;
 915   mips*-sgi-irix4*)
 916     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 917     # environment.  Also bump switch table size so that cp-parse will
 918     # compile.  Bump string length limit so linker builds.
 919     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 920     ;;
 921   mips*-*-sysv4*)
 922     host_makefile_frag="config/mh-sysv4"
 923     ;;
 924   mips*-*-sysv*)
 925     # This is for a MIPS running RISC/os 4.52C.
 926
 927     # This is needed for GDB, but needs to be in the top-level make because
 928     # if a library is compiled with the bsd headers and gets linked with the
 929     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 930     # a different size).
 931     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 932     # known except to select the sysv environment.  Could we use /proc instead?
 933     # These "sysv environments" and "bsd environments" often end up being a pain.
 934     #
 935     # This is not part of CFLAGS because perhaps not all C compilers have this
 936     # option.
 937     tentative_cc="cc -systype sysv"
 938     ;;
 939   i370-ibm-opened*)
 940     tentative_cc="c89"
 941     ;;
 942   i[[3456789]]86-*-sysv5*)
 943     host_makefile_frag="config/mh-sysv5"
 944     ;;
 945   i[[3456789]]86-*-dgux*)
 946     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 947     host_makefile_frag="config/mh-dgux386"
 948     ;;
 949   i[[3456789]]86-ncr-sysv4.3*)
 950     # The MetaWare compiler will generate a copyright message unless you
 951     # turn it off by adding the -Hnocopyr flag.
 952     tentative_cc="cc -Hnocopyr"
 953     ;;
 954   i[[3456789]]86-ncr-sysv4*)
 955     # for an NCR 3000 (i486/SVR4) system.
 956     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 957     # This compiler not only emits obnoxious copyright messages every time
 958     # you run it, but it chokes and dies on a whole bunch of GNU source
 959     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 960     tentative_cc="/usr/ccs/ATT/cc"
 961     host_makefile_frag="config/mh-ncr3000"
 962     ;;
 963   i[[3456789]]86-*-sco3.2v5*)
 964     ;;
 965   i[[3456789]]86-*-sco*)
 966     # The native C compiler botches some simple uses of const.  Unfortunately,
 967     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 968     tentative_cc="cc -Dconst="
 969     host_makefile_frag="config/mh-sco"
 970     ;;
 971   i[[3456789]]86-*-udk*)
 972     host_makefile_frag="config/mh-sysv5"
 973     ;;
 974   i[[3456789]]86-*-solaris2*)
 975     host_makefile_frag="config/mh-sysv4"
 976     ;;
 977   i[[3456789]]86-*-msdosdjgpp*)
 978     host_makefile_frag="config/mh-djgpp"
 979     ;;
 980   *-cygwin*)
 981     host_makefile_frag="config/mh-cygwin"
 982     ;;
 983   *-mingw32*)
 984     ;;
 985   *-interix*)
 986     host_makefile_frag="config/mh-interix"
 987     ;;
 988   vax-*-ultrix2*)
 989     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 990     tentative_cc=gcc
 991     ;;
 992   *-*-solaris2*)
 993     host_makefile_frag="config/mh-solaris"
 994     ;;
 995   m68k-sun-sunos*)
 996     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 997     # without overflowing the jump tables (-J says to use a 32 bit table)
 998     tentative_cc="cc -J"
 999     ;;
1000   *-hp-hpux*)
1001     tentative_cc="cc -Wp,-H256000"
1002     ;;
1003   *-*-hiux*)
1004     tentative_cc="cc -Wp,-H256000"
1005     ;;
1006   rs6000-*-lynxos*)
1007     # /bin/cc is less than useful for our purposes.  Always use GCC
1008     tentative_cc="/usr/cygnus/progressive/bin/gcc"
1009     host_makefile_frag="config/mh-lynxrs6k"
1010     ;;
1011   powerpc-*-darwin*)
1012     host_makefile_frag="config/mh-ppc-darwin"
1013     ;;
1014   powerpc-*-aix*)
1015     host_makefile_frag="config/mh-ppc-aix"
1016     ;;
1017   rs6000-*-aix*)
1018     host_makefile_frag="config/mh-ppc-aix"
1019     ;;
1020   *-*-lynxos*)
1021     # /bin/cc is less than useful for our purposes.  Always use GCC
1022     tentative_cc="/bin/gcc"
1023     ;;
1024   *-*-sysv4*)
1025     host_makefile_frag="config/mh-sysv4"
1026     ;;
1027   # This is placed last to prevent interfering with the cases above.
1028   i[[3456789]]86-*-*)
1029     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
1030     host_makefile_frag="config/mh-x86omitfp"
1031     ;;
1032 esac
1033 fi
1034
1035 # If we aren't going to be using gcc, see if we can extract a definition
1036 # of CC from the fragment.
1037 # Actually, use the 'pre-extracted' version above.
1038 if test -z "${CC}" && test "${build}" = "${host}" ; then
1039   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1040   found=
1041   for dir in $PATH; do
1042     test -z "$dir" && dir=.
1043     if test -f $dir/gcc; then
1044       found=yes
1045       break
1046     fi
1047   done
1048   IFS="$save_ifs"
1049   if test -z "${found}" && test -n "${tentative_cc}" ; then
1050     CC=$tentative_cc
1051   fi
1052 fi
1053
1054 if test "${build}" != "${host}" ; then
1055   # If we are doing a Canadian Cross, in which the host and build systems
1056   # are not the same, we set reasonable default values for the tools.
1057
1058   CC=${CC-${host_alias}-gcc}
1059   CFLAGS=${CFLAGS-"-g -O2"}
1060   CXX=${CXX-${host_alias}-c++}
1061   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1062   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1063
1064 else
1065   # Set reasonable default values for some tools even if not Canadian.
1066   # Of course, these are different reasonable default values, originally
1067   # specified directly in the Makefile.
1068   # We don't export, so that autoconf can do its job.
1069   # Note that all these settings are above the fragment inclusion point
1070   # in Makefile.in, so can still be overridden by fragments.
1071   # This is all going to change when we autoconfiscate...
1072
1073   CC_FOR_BUILD="\$(CC)"
1074   AC_PROG_CC
1075
1076   # We must set the default linker to the linker used by gcc for the correct
1077   # operation of libtool.  If LD is not defined and we are using gcc, try to
1078   # set the LD default to the ld used by gcc.
1079   if test -z "$LD"; then
1080     if test "$GCC" = yes; then
1081       case $build in
1082       *-*-mingw*)
1083         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1084       *)
1085         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1086       esac
1087       case $gcc_prog_ld in
1088       # Accept absolute paths.
1089       [[\\/]* | [A-Za-z]:[\\/]*)]
1090         LD="$gcc_prog_ld" ;;
1091       esac
1092     fi
1093   fi
1094
1095   CXX=${CXX-"c++"}
1096   CFLAGS=${CFLAGS-"-g"}
1097   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1098 fi
1099
1100 ACX_PROG_GNAT
1101 ACX_PROG_CMP_IGNORE_INITIAL
1102
1103 # Check for GMP and MPFR
1104 gmplibs=
1105 gmpinc=
1106 have_gmp=yes
1107 # Specify a location for mpfr
1108 # check for this first so it ends up on the link line before gmp.
1109 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1110
1111 if test "x$with_mpfr_dir" != x; then
1112   gmpinc="-I$with_mpfr_dir"
1113   gmplibs="$with_mpfr_dir/libmpfr.a"
1114 else
1115   gmplibs="-lmpfr"
1116 fi
1117
1118 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1119
1120 if test "x$with_mpfr" != x; then
1121   gmplibs="-L$with_mpfr/lib $gmplibs"
1122   gmpinc="-I$with_mpfr/include"
1123 fi
1124
1125 # Specify a location for gmp
1126 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1127
1128 if test "x$with_gmp_dir" != x; then
1129   gmpinc="$gmpinc -I$with_gmp_dir"
1130   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1131     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1132   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1133     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1134   fi
1135   # One of the later tests will catch the error if neither library is present.
1136 else
1137   gmplibs="$gmplibs -lgmp"
1138 fi
1139
1140 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1141
1142 if test "x$with_gmp" != x; then
1143   gmplibs="-L$with_gmp/lib $gmplibs"
1144   gmpinc="-I$with_gmp/include $gmpinc"
1145 fi
1146
1147 saved_CFLAGS="$CFLAGS"
1148 CFLAGS="$CFLAGS $gmpinc"
1149 # Check GMP actually works
1150 AC_MSG_CHECKING([for correct version of gmp.h])
1151 AC_TRY_COMPILE([#include "gmp.h"],[
1152 #if __GNU_MP_VERSION < 3
1153 choke me
1154 #endif
1155 ], [AC_MSG_RESULT([yes])],
1156   [AC_MSG_RESULT([no]); have_gmp=no])
1157
1158 if test x"$have_gmp" = xyes; then
1159   AC_MSG_CHECKING([for MPFR])
1160
1161   saved_LIBS="$LIBS"
1162   LIBS="$LIBS $gmplibs"
1163   AC_TRY_LINK([#include <gmp.h>
1164 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1165     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1166   LIBS="$saved_LIBS"
1167   CFLAGS="$saved_CFLAGS"
1168 fi
1169
1170 # Flags needed for both GMP and/or MPFR
1171 AC_SUBST(gmplibs)
1172 AC_SUBST(gmpinc)
1173
1174 # By default, C is the only stage 1 language.
1175 stage1_languages=c
1176 AC_SUBST(stage1_languages)
1177
1178 # Figure out what language subdirectories are present.
1179 # Look if the user specified --enable-languages="..."; if not, use
1180 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1181 # go away some day.
1182 # NB:  embedded tabs in this IF block -- do not untabify
1183 if test -d ${srcdir}/gcc; then
1184   if test x"${enable_languages+set}" != xset; then
1185     if test x"${LANGUAGES+set}" = xset; then
1186       enable_languages="${LANGUAGES}"
1187         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1188     else
1189       enable_languages=all
1190     fi
1191   else
1192     if test x"${enable_languages}" = x ||
1193        test x"${enable_languages}" = xyes;
1194        then
1195       echo configure.in: --enable-languages needs at least one language argument 1>&2
1196       exit 1
1197     fi
1198   fi
1199   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1200
1201   # 'f95' is the old name for the 'fortran' language. We issue a warning
1202   # and make the substitution.
1203   case ,${enable_languages}, in
1204     *,f95,*)
1205       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1206       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1207       ;;
1208   esac
1209
1210   # First scan to see if an enabled language requires some other language.
1211   # We assume that a given config-lang.in will list all the language
1212   # front ends it requires, even if some are required indirectly.
1213   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1214     case ${lang_frag} in
1215       ..) ;;
1216       # The odd quoting in the next line works around
1217       # an apparent bug in bash 1.12 on linux.
1218       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1219       *)
1220         # From the config-lang.in, get $language, $lang_requires
1221         language=
1222         lang_requires=
1223         . ${lang_frag}
1224         for other in ${lang_requires} ; do
1225           case ,${enable_languages}, in
1226             *,$other,*) ;;
1227             *,all,*) ;;
1228             *,$language,*)
1229               echo " \`$other' language required by \`$language'; enabling" 1>&2
1230               enable_languages="${enable_languages},${other}"
1231               ;;
1232           esac
1233         done
1234         ;;
1235     esac
1236   done
1237
1238   new_enable_languages=c
1239   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1240   potential_languages=c
1241
1242   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1243     case ${lang_frag} in
1244       ..) ;;
1245       # The odd quoting in the next line works around
1246       # an apparent bug in bash 1.12 on linux.
1247       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1248       *)
1249         # From the config-lang.in, get $language, $target_libs,
1250         # $lang_dirs, $boot_language, and $build_by_default
1251         language=
1252         target_libs=
1253         lang_dirs=
1254         boot_language=
1255         build_by_default=
1256         need_gmp=
1257         . ${lang_frag}
1258         potential_languages="${potential_languages},${language}"
1259         # This is quite sensitive to the ordering of the case statement arms.
1260         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1261           *::*:*)
1262             echo "${lang_frag} doesn't set \$language." 1>&2
1263             exit 1
1264             ;;
1265           *:ada:no:*)
1266             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1267             add_this_lang=no
1268             ;;
1269           *,${language},*:*:*:*)
1270             # Language was explicitly selected; include it.
1271             add_this_lang=yes
1272             ;;
1273           *,all,*:*:*:no)
1274             # 'all' was selected, but this is not a default language
1275             # so do not include it.
1276             add_this_lang=no
1277             ;;
1278           *,all,*:*:*:*)
1279             # 'all' was selected and this is a default language; include it.
1280             add_this_lang=yes
1281             ;;
1282           *)
1283             add_this_lang=no
1284             ;;
1285         esac
1286
1287         # Disable languages that need GMP if it isn't available.
1288         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1289           *,${language},*:no:yes)
1290             # Specifically requested language; tell them.
1291             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1292             ;;
1293           *:no:yes)
1294             # Silently disable.
1295             add_this_lang=no
1296             ;;
1297         esac
1298
1299         # Disable a language that is unsupported by the target.
1300         case " $unsupported_languages " in
1301           *" $language "*)
1302             add_this_lang=no
1303             ;;
1304         esac
1305
1306         case $add_this_lang in
1307           no)
1308             # Remove language-dependent dirs.
1309             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1310             ;;
1311           *)
1312             new_enable_languages="$new_enable_languages,$language"
1313             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1314             case ${boot_language} in
1315               yes)
1316                 # Add to (comma-separated) list of stage 1 languages.
1317                 stage1_languages="${stage1_languages},${language}"
1318                 ;;
1319             esac
1320             ;;
1321         esac
1322         ;;
1323     esac
1324   done
1325
1326   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1327   if test "x$missing_languages" != x; then
1328     AC_MSG_ERROR([
1329 The following requested languages could not be built: ${missing_languages}
1330 Recognised languages are: ${potential_languages}])
1331   fi
1332
1333   if test "x$new_enable_languages" != "x$enable_languages"; then
1334     echo The following languages will be built: ${new_enable_languages}
1335   fi
1336   enable_languages="$new_enable_languages"
1337   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1338 fi
1339
1340 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1341 # $build_configdirs and $target_configdirs.
1342 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1343
1344 notsupp=""
1345 for dir in . $skipdirs $noconfigdirs ; do
1346   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1347   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1348     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1349     if test -r $srcdir/$dirname/configure ; then
1350       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1351         true
1352       else
1353         notsupp="$notsupp $dir"
1354       fi
1355     fi
1356   fi
1357   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1358     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1359     if test -r $srcdir/$dirname/configure ; then
1360       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1361         true
1362       else
1363         notsupp="$notsupp $dir"
1364       fi
1365     fi
1366   fi
1367   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1368     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1369     if test -r $srcdir/$dirname/configure ; then
1370       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1371         true
1372       else
1373         notsupp="$notsupp $dir"
1374       fi
1375     fi
1376   fi
1377 done
1378
1379 # Sometimes the tools are distributed with libiberty but with no other
1380 # libraries.  In that case, we don't want to build target-libiberty.
1381 if test -n "${target_configdirs}" ; then
1382   others=
1383   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1384     if test "$i" != "libiberty" ; then
1385       if test -r $srcdir/$i/configure ; then
1386         others=yes;
1387         break;
1388       fi
1389     fi
1390   done
1391   if test -z "${others}" ; then
1392     target_configdirs=
1393   fi
1394 fi
1395
1396 # Quietly strip out all directories which aren't configurable in this tree.
1397 # This relies on all configurable subdirectories being autoconfiscated, which
1398 # is now the case.
1399 build_configdirs_all="$build_configdirs"
1400 build_configdirs=
1401 for i in ${build_configdirs_all} ; do
1402   j=`echo $i | sed -e s/build-//g`
1403   if test -f ${srcdir}/$j/configure ; then
1404     build_configdirs="${build_configdirs} $i"
1405   fi
1406 done
1407
1408 configdirs_all="$configdirs"
1409 configdirs=
1410 for i in ${configdirs_all} ; do
1411   if test -f ${srcdir}/$i/configure ; then
1412     configdirs="${configdirs} $i"
1413   fi
1414 done
1415
1416 target_configdirs_all="$target_configdirs"
1417 target_configdirs=
1418 for i in ${target_configdirs_all} ; do
1419   j=`echo $i | sed -e s/target-//g`
1420   if test -f ${srcdir}/$j/configure ; then
1421     target_configdirs="${target_configdirs} $i"
1422   fi
1423 done
1424
1425 # Produce a warning message for the subdirs we can't configure.
1426 # This isn't especially interesting in the Cygnus tree, but in the individual
1427 # FSF releases, it's important to let people know when their machine isn't
1428 # supported by the one or two programs in a package.
1429
1430 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1431   # If $appdirs is non-empty, at least one of those directories must still
1432   # be configured, or we error out.  (E.g., if the gas release supports a
1433   # specified target in some subdirs but not the gas subdir, we shouldn't
1434   # pretend that all is well.)
1435   if test -n "$appdirs" ; then
1436     for dir in $appdirs ; do
1437       if test -r $dir/Makefile.in ; then
1438         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1439           appdirs=""
1440           break
1441         fi
1442         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1443           appdirs=""
1444           break
1445         fi
1446       fi
1447     done
1448     if test -n "$appdirs" ; then
1449       echo "*** This configuration is not supported by this package." 1>&2
1450       exit 1
1451     fi
1452   fi
1453   # Okay, some application will build, or we don't care to check.  Still
1454   # notify of subdirs not getting built.
1455   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1456   echo "    ${notsupp}" 1>&2
1457   echo "    (Any other directories should still work fine.)" 1>&2
1458 fi
1459
1460 case "$host" in
1461   *msdosdjgpp*)
1462     enable_gdbtk=no ;;
1463 esac
1464
1465 copy_dirs=
1466
1467 AC_ARG_WITH([build-sysroot],
1468   [  --with-build-sysroot=sysroot
1469                           use sysroot as the system root during the build],
1470   [if test x"$withval" != x ; then
1471      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1472    fi],
1473   [SYSROOT_CFLAGS_FOR_TARGET=])
1474 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1475
1476 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1477 # the named directory are copied to $(tooldir)/sys-include.
1478 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1479   if test x${is_cross_compiler} = xno ; then
1480     echo 1>&2 '***' --with-headers is only supported when cross compiling
1481     exit 1
1482   fi
1483   if test x"${with_headers}" != xyes ; then
1484     case "${exec_prefixoption}" in
1485     "") x=${prefix} ;;
1486     *) x=${exec_prefix} ;;
1487     esac
1488     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1489   fi
1490 fi
1491
1492 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1493 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1494 # are permitted.
1495 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1496   if test x${is_cross_compiler} = xno ; then
1497     echo 1>&2 '***' --with-libs is only supported when cross compiling
1498     exit 1
1499   fi
1500   if test x"${with_libs}" != xyes ; then
1501     # Copy the libraries in reverse order, so that files in the first named
1502     # library override files in subsequent libraries.
1503     case "${exec_prefixoption}" in
1504     "") x=${prefix} ;;
1505     *) x=${exec_prefix} ;;
1506     esac
1507     for l in ${with_libs}; do
1508       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1509     done
1510   fi
1511 fi
1512
1513 # Set with_gnu_as and with_gnu_ld as appropriate.
1514 #
1515 # This is done by determining whether or not the appropriate directory
1516 # is available, and by checking whether or not specific configurations
1517 # have requested that this magic not happen.
1518 #
1519 # The command line options always override the explicit settings in
1520 # configure.in, and the settings in configure.in override this magic.
1521 #
1522 # If the default for a toolchain is to use GNU as and ld, and you don't
1523 # want to do that, then you should use the --without-gnu-as and
1524 # --without-gnu-ld options for the configure script.
1525
1526 if test x${use_gnu_as} = x &&
1527    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1528   with_gnu_as=yes
1529   extra_host_args="$extra_host_args --with-gnu-as"
1530 fi
1531
1532 if test x${use_gnu_ld} = x &&
1533    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1534   with_gnu_ld=yes
1535   extra_host_args="$extra_host_args --with-gnu-ld"
1536 fi
1537
1538 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1539 # can detect this case.
1540
1541 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1542   with_newlib=yes
1543   extra_host_args="$extra_host_args --with-newlib"
1544 fi
1545
1546 # Handle ${copy_dirs}
1547 set fnord ${copy_dirs}
1548 shift
1549 while test $# != 0 ; do
1550   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1551     :
1552   else
1553     echo Copying $1 to $2
1554
1555     # Use the install script to create the directory and all required
1556     # parent directories.
1557     if test -d $2 ; then
1558       :
1559     else
1560       echo >config.temp
1561       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1562     fi
1563
1564     # Copy the directory, assuming we have tar.
1565     # FIXME: Should we use B in the second tar?  Not all systems support it.
1566     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1567
1568     # It is the responsibility of the user to correctly adjust all
1569     # symlinks.  If somebody can figure out how to handle them correctly
1570     # here, feel free to add the code.
1571
1572     echo $1 > $2/COPIED
1573   fi
1574   shift; shift
1575 done
1576
1577 # Determine a target-dependent exec_prefix that the installed
1578 # gcc will search in.  Keep this list sorted by triplet, with
1579 # the *-*-osname triplets last.
1580 md_exec_prefix=
1581 case "${target}" in
1582   alpha*-*-*vms*)
1583     md_exec_prefix=/gnu/lib/gcc-lib
1584     ;;
1585   i[34567]86-pc-msdosdjgpp*)
1586     md_exec_prefix=/dev/env/DJDIR/bin
1587     ;;
1588   i[34567]86-*-sco3.2v5*)
1589     if test $with_gnu_as = yes; then
1590       md_exec_prefix=/usr/gnu/bin
1591     else
1592       md_exec_prefix=/usr/ccs/bin/elf
1593     fi
1594     ;;
1595
1596   mn10300-*-* | \
1597   powerpc-*-chorusos* | \
1598   powerpc*-*-eabi* | \
1599   powerpc*-*-sysv* | \
1600   powerpc*-*-kaos* | \
1601   s390x-ibm-tpf*)
1602     md_exec_prefix=/usr/ccs/bin
1603     ;;
1604   sparc64-*-elf*)
1605     ;;
1606   v850*-*-*)
1607     md_exec_prefix=/usr/ccs/bin
1608     ;;
1609   xtensa-*-elf*)
1610     ;;
1611
1612   *-*-beos* | \
1613   *-*-elf* | \
1614   *-*-hpux* | \
1615   *-*-netware* | \
1616   *-*-nto-qnx* | \
1617   *-*-rtems* | \
1618   *-*-solaris2* | \
1619   *-*-sysv[45]* | \
1620   *-*-vxworks* | \
1621   *-wrs-windiss)
1622     md_exec_prefix=/usr/ccs/bin
1623     ;;
1624 esac
1625
1626 extra_arflags_for_target=
1627 extra_nmflags_for_target=
1628 extra_ranlibflags_for_target=
1629 target_makefile_frag=/dev/null
1630 case "${target}" in
1631   *-*-netware*)
1632     target_makefile_frag="config/mt-netware"
1633     ;;
1634   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1635     target_makefile_frag="config/mt-gnu"
1636     ;;
1637   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1638     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1639     # commands to handle both 32-bit and 64-bit objects.  These flags are
1640     # harmless if we're using GNU nm or ar.
1641     extra_arflags_for_target=" -X32_64"
1642     extra_nmflags_for_target=" -B -X32_64"
1643     ;;
1644   *-*-darwin*)
1645     # ranlib from Darwin requires the -c flag to look at common symbols.
1646     extra_ranlibflags_for_target=" -c"
1647     ;;
1648   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1649     target_makefile_frag="config/mt-wince"
1650     ;;
1651 esac
1652
1653 alphaieee_frag=/dev/null
1654 case $target in
1655   alpha*-*-*)
1656     # This just makes sure to use the -mieee option to build target libs.
1657     # This should probably be set individually by each library.
1658     alphaieee_frag="config/mt-alphaieee"
1659     ;;
1660 esac
1661
1662 # If --enable-target-optspace always use -Os instead of -O2 to build
1663 # the target libraries, similarly if it is not specified, use -Os
1664 # on selected platforms.
1665 ospace_frag=/dev/null
1666 case "${enable_target_optspace}:${target}" in
1667   yes:*)
1668     ospace_frag="config/mt-ospace"
1669     ;;
1670   :d30v-*)
1671     ospace_frag="config/mt-d30v"
1672     ;;
1673   :m32r-* | :d10v-* | :fr30-*)
1674     ospace_frag="config/mt-ospace"
1675     ;;
1676   no:* | :*)
1677     ;;
1678   *)
1679     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1680     ;;
1681 esac
1682
1683 # Default to using --with-stabs for certain targets.
1684 if test x${with_stabs} = x ; then
1685   case "${target}" in
1686   mips*-*-irix[[56]]*)
1687     ;;
1688   mips*-*-* | alpha*-*-osf*)
1689     with_stabs=yes;
1690     extra_host_args="${extra_host_args} --with-stabs"
1691     ;;
1692   esac
1693 fi
1694
1695 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1696 # them automatically.
1697 case "${host}" in
1698   hppa*64*-*-hpux11*)
1699     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1700     ;;
1701 esac
1702
1703 # Some systems (e.g., one of the i386-aix systems the gas testers are
1704 # using) don't handle "\$" correctly, so don't use it here.
1705 tooldir='${exec_prefix}'/${target_alias}
1706 build_tooldir=${tooldir}
1707
1708 # Create a .gdbinit file which runs the one in srcdir
1709 # and tells GDB to look there for source files.
1710
1711 if test -r ${srcdir}/.gdbinit ; then
1712   case ${srcdir} in
1713     .) ;;
1714     *) cat > ./.gdbinit <<EOF
1715 # ${NO_EDIT}
1716 dir ${srcdir}
1717 dir .
1718 source ${srcdir}/.gdbinit
1719 EOF
1720     ;;
1721   esac
1722 fi
1723
1724 # Make sure that the compiler is able to generate an executable.  If it
1725 # can't, we are probably in trouble.  We don't care whether we can run the
1726 # executable--we might be using a cross compiler--we only care whether it
1727 # can be created.  At this point the main configure script has set CC.
1728 we_are_ok=no
1729 echo "int main () { return 0; }" > conftest.c
1730 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1731 if test $? = 0 ; then
1732   if test -s conftest || test -s conftest.exe ; then
1733     we_are_ok=yes
1734   fi
1735 fi
1736 case $we_are_ok in
1737   no)
1738     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1739     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1740     rm -f conftest*
1741     exit 1
1742     ;;
1743 esac
1744 rm -f conftest*
1745
1746 # The Solaris /usr/ucb/cc compiler does not appear to work.
1747 case "${host}" in
1748   sparc-sun-solaris2*)
1749       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1750       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1751           could_use=
1752           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1753           if test -d /opt/cygnus/bin ; then
1754               if test "$could_use" = "" ; then
1755                   could_use="/opt/cygnus/bin"
1756               else
1757                   could_use="$could_use or /opt/cygnus/bin"
1758               fi
1759           fi
1760         if test "$could_use" = "" ; then
1761             echo "Warning: compilation may fail because you're using"
1762             echo "/usr/ucb/cc.  You should change your PATH or CC "
1763             echo "variable and rerun configure."
1764         else
1765             echo "Warning: compilation may fail because you're using"
1766             echo "/usr/ucb/cc, when you should use the C compiler from"
1767             echo "$could_use.  You should change your"
1768             echo "PATH or CC variable and rerun configure."
1769         fi
1770       fi
1771   ;;
1772 esac
1773
1774 case "${host}" in
1775   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1776   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1777   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1778 esac
1779
1780 # Record target_configdirs and the configure arguments for target and
1781 # build configuration in Makefile.
1782 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1783 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1784
1785 # Determine whether gdb needs tk/tcl or not.
1786 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1787 # and in that case we want gdb to be built without tk.  Ugh!
1788 # In fact I believe gdb is the *only* package directly dependent on tk,
1789 # so we should be able to put the 'maybe's in unconditionally and
1790 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1791 # 100% sure that that's safe though.
1792
1793 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1794 case "$enable_gdbtk" in
1795   no)
1796     GDB_TK="" ;;
1797   yes)
1798     GDB_TK="${gdb_tk}" ;;
1799   *)
1800     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1801     # distro.  Eventually someone will fix this and move Insight, nee
1802     # gdbtk to a separate directory.
1803     if test -d ${srcdir}/gdb/gdbtk ; then
1804       GDB_TK="${gdb_tk}"
1805     else
1806       GDB_TK=""
1807     fi
1808     ;;
1809 esac
1810 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1811 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1812
1813 # Strip out unwanted targets.
1814
1815 # While at that, we remove Makefiles if we were started for recursive
1816 # configuration, so that the top-level Makefile reconfigures them,
1817 # like we used to do when configure itself was recursive.
1818
1819 # Loop over modules.  $extrasub must be used with care, limiting as
1820 # much as possible the usage of range addresses.  That's because autoconf
1821 # splits the sed script to overcome limits in the number of commands,
1822 # and relying on carefully-timed sed passes may turn out to be very hard
1823 # to maintain later.  In this particular case, you just have to be careful
1824 # not to nest @if/@endif pairs, because configure will not warn you at all.
1825
1826 AC_ARG_ENABLE([bootstrap],
1827 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1828 enable_bootstrap=default)
1829
1830 # Issue errors and warnings for invalid/strange bootstrap combinations.
1831 case "$configdirs" in
1832   *gcc*) have_compiler=yes ;;
1833   *) have_compiler=no ;;
1834 esac
1835
1836 case "$have_compiler:$host:$target:$enable_bootstrap" in
1837   *:*:*:no) ;;
1838
1839   # Default behavior.  Enable bootstrap if we have a compiler
1840   # and we are in a native configuration.
1841   yes:$build:$build:default)
1842     enable_bootstrap=yes ;;
1843
1844   *:*:*:default)
1845     enable_bootstrap=no ;;
1846
1847   # We have a compiler and we are in a native configuration, bootstrap is ok
1848   yes:$build:$build:yes)
1849     ;;
1850
1851   # Other configurations, but we have a compiler.  Assume the user knows
1852   # what he's doing.
1853   yes:*:*:yes)
1854     AC_MSG_WARN([trying to bootstrap a cross compiler])
1855     ;;
1856
1857   # No compiler: if they passed --enable-bootstrap explicitly, fail
1858   no:*:*:yes)
1859     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1860
1861   # Fail if wrong command line
1862   *)
1863     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1864     ;;
1865 esac
1866
1867 # Adjust the toplevel makefile according to whether bootstrap was selected.
1868 case "$enable_bootstrap" in
1869   yes)
1870     bootstrap_suffix=bootstrap ;;
1871   no)
1872     bootstrap_suffix=no-bootstrap ;;
1873 esac
1874
1875 for module in ${build_configdirs} ; do
1876   if test -z "${no_recursion}" \
1877      && test -f ${build_subdir}/${module}/Makefile; then
1878     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1879     rm -f ${build_subdir}/${module}/Makefile
1880   fi
1881   extrasub="$extrasub
1882 /^@if build-$module\$/d
1883 /^@endif build-$module\$/d
1884 /^@if build-$module-$bootstrap_suffix\$/d
1885 /^@endif build-$module-$bootstrap_suffix\$/d"
1886 done
1887 for module in ${configdirs} ; do
1888   if test -z "${no_recursion}"; then
1889     for file in stage*-${module}/Makefile ${module}/Makefile; do
1890       if test -f ${file}; then
1891         echo 1>&2 "*** removing ${file} to force reconfigure"
1892         rm -f ${file}
1893       fi
1894     done
1895   fi
1896   extrasub="$extrasub
1897 /^@if $module\$/d
1898 /^@endif $module\$/d
1899 /^@if $module-$bootstrap_suffix\$/d
1900 /^@endif $module-$bootstrap_suffix\$/d"
1901 done
1902 for module in ${target_configdirs} ; do
1903   if test -z "${no_recursion}" \
1904      && test -f ${target_subdir}/${module}/Makefile; then
1905     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1906     rm -f ${target_subdir}/${module}/Makefile
1907   fi
1908   extrasub="$extrasub
1909 /^@if target-$module\$/d
1910 /^@endif target-$module\$/d
1911 /^@if target-$module-$bootstrap_suffix\$/d
1912 /^@endif target-$module-$bootstrap_suffix\$/d"
1913 done
1914
1915 extrasub="$extrasub
1916 /^@if /,/^@endif /d"
1917
1918 # Create the serialization dependencies.  This uses a temporary file.
1919
1920 AC_ARG_ENABLE([serial-configure],
1921 [  --enable-serial-[{host,target,build}-]configure
1922                           Force sequential configuration of
1923                           sub-packages for the host, target or build
1924                           machine, or all sub-packages])
1925
1926 case ${enable_serial_configure} in
1927   yes)
1928     enable_serial_build_configure=yes
1929     enable_serial_host_configure=yes
1930     enable_serial_target_configure=yes
1931     ;;
1932 esac
1933
1934 # These force 'configure's to be done one at a time, to avoid problems
1935 # with contention over a shared config.cache.
1936 rm -f serdep.tmp
1937 echo '# serdep.tmp' > serdep.tmp
1938 olditem=
1939 test "x${enable_serial_build_configure}" = xyes &&
1940 for item in ${build_configdirs} ; do
1941   case ${olditem} in
1942     "") ;;
1943     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1944   esac
1945   olditem=${item}
1946 done
1947 olditem=
1948 test "x${enable_serial_host_configure}" = xyes &&
1949 for item in ${configdirs} ; do
1950   case ${olditem} in
1951     "") ;;
1952     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1953   esac
1954   olditem=${item}
1955 done
1956 olditem=
1957 test "x${enable_serial_target_configure}" = xyes &&
1958 for item in ${target_configdirs} ; do
1959   case ${olditem} in
1960     "") ;;
1961     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1962   esac
1963   olditem=${item}
1964 done
1965 serialization_dependencies=serdep.tmp
1966 AC_SUBST_FILE(serialization_dependencies)
1967
1968 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1969 # target and nonopt.  These are the ones we might not want to pass
1970 # down to subconfigures.  Also strip program-prefix, program-suffix,
1971 # and program-transform-name, so that we can pass down a consistent
1972 # program-transform-name.  If autoconf has put single quotes around
1973 # any of these arguments (because they contain shell metacharacters)
1974 # then this will fail; in practice this only happens for
1975 # --program-transform-name, so be sure to override --program-transform-name
1976 # at the end of the argument list.
1977 # These will be expanded by make, so quote '$'.
1978 cat <<\EOF_SED > conftestsed
1979 s/ --no[[^ ]]*/ /g
1980 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1981 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1982 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1983 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1984 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1985 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1986 s/ -cache-file[[= ]][[^ ]]*//g
1987 s/ -srcdir[[= ]][[^ ]]*//g
1988 s/ -host[[= ]][[^ ]]*//g
1989 s/ -build[[= ]][[^ ]]*//g
1990 s/ -target[[= ]][[^ ]]*//g
1991 s/ -program-prefix[[= ]][[^ ]]*//g
1992 s/ -program-suffix[[= ]][[^ ]]*//g
1993 s/ -program-transform-name[[= ]][[^ ]]*//g
1994 s/ [[^' -][^ ]*] / /
1995 s/^ *//;s/ *$//
1996 s,\$,$$,g
1997 EOF_SED
1998 sed -f conftestsed <<EOF_SED > conftestsed.out
1999  ${ac_configure_args}
2000 EOF_SED
2001 baseargs=`cat conftestsed.out`
2002 rm -f conftestsed conftestsed.out
2003
2004 # Add in --program-transform-name, after --program-prefix and
2005 # --program-suffix have been applied to it.  Autoconf has already
2006 # doubled dollar signs and backslashes in program_transform_name; we want
2007 # the backslashes un-doubled, and then the entire thing wrapped in single
2008 # quotes, because this will be expanded first by make and then by the shell.
2009 # Also, because we want to override the logic in subdir configure scripts to
2010 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2011 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2012 ${program_transform_name}
2013 EOF_SED
2014 gcc_transform_name=`cat conftestsed.out`
2015 rm -f conftestsed.out
2016 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2017
2018 # For the build-side libraries, we just need to pretend we're native,
2019 # and not use the same cache file.  Multilibs are neither needed nor
2020 # desired.
2021 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
2022
2023 # For host modules, accept cache file option, or specification as blank.
2024 case "${cache_file}" in
2025 "") # empty
2026   cache_file_option="" ;;
2027 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2028   cache_file_option="--cache-file=${cache_file}" ;;
2029 *) # relative path
2030   cache_file_option="--cache-file=../${cache_file}" ;;
2031 esac
2032
2033 # Host dirs don't like to share a cache file either, horribly enough.
2034 # This seems to be due to autoconf 2.5x stupidity.
2035 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
2036
2037 target_configargs=${baseargs}
2038
2039 # Passing a --with-cross-host argument lets the target libraries know
2040 # whether they are being built with a cross-compiler or being built
2041 # native.  However, it would be better to use other mechanisms to make the
2042 # sorts of decisions they want to make on this basis.  Please consider
2043 # this option to be deprecated.  FIXME.
2044 if test x${is_cross_compiler} = xyes ; then
2045   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2046 fi
2047
2048 # Default to --enable-multilib.
2049 if test x${enable_multilib} = x ; then
2050   target_configargs="--enable-multilib ${target_configargs}"
2051 fi
2052
2053 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2054 # changed from the earlier setting of with_newlib.
2055 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2056   target_configargs="--with-newlib ${target_configargs}"
2057 fi
2058
2059 # Different target subdirs use different values of certain variables
2060 # (notably CXX).  Worse, multilibs use *lots* of different values.
2061 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2062 # it doesn't automatically accept command-line overrides of them.
2063 # This means it's not safe for target subdirs to share a cache file,
2064 # which is disgusting, but there you have it.  Hopefully this can be
2065 # fixed in future.  It's still worthwhile to use a cache file for each
2066 # directory.  I think.
2067
2068 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2069 # We need to pass --target, as newer autoconf's requires consistency
2070 # for target_alias and gcc doesn't manage it consistently.
2071 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2072
2073 FLAGS_FOR_TARGET=
2074 case " $target_configdirs " in
2075  *" newlib "*)
2076   case " $target_configargs " in
2077   *" --with-newlib "*)
2078    case "$target" in
2079    *-cygwin*)
2080      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' ;;
2081    esac
2082
2083    # If we're not building GCC, don't discard standard headers.
2084    if test -d ${srcdir}/gcc; then
2085      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2086
2087      if test "${build}" != "${host}"; then
2088        # On Canadian crosses, CC_FOR_TARGET will have already been set
2089        # by `configure', so we won't have an opportunity to add -Bgcc/
2090        # to it.  This is right: we don't want to search that directory
2091        # for binaries, but we want the header files in there, so add
2092        # them explicitly.
2093        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2094
2095        # Someone might think of using the pre-installed headers on
2096        # Canadian crosses, in case the installed compiler is not fully
2097        # compatible with the compiler being built.  In this case, it
2098        # would be better to flag an error than risking having
2099        # incompatible object files being constructed.  We can't
2100        # guarantee that an error will be flagged, but let's hope the
2101        # compiler will do it, when presented with incompatible header
2102        # files.
2103      fi
2104    fi
2105
2106    case "${target}-${is_cross_compiler}" in
2107    i[[3456789]]86-*-linux*-no)
2108       # Here host == target, so we don't need to build gcc,
2109       # so we don't want to discard standard headers.
2110       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2111       ;;
2112    *)
2113       # If we're building newlib, use its generic headers last, but search
2114       # for any libc-related directories first (so make it the last -B
2115       # switch).
2116       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2117       ;;
2118    esac
2119    ;;
2120   esac
2121   ;;
2122 esac
2123
2124 # Allow the user to override the flags for
2125 # our build compiler if desired.
2126 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2127
2128 # On Canadian crosses, we'll be searching the right directories for
2129 # the previously-installed cross compiler, so don't bother to add
2130 # flags for directories within the install tree of the compiler
2131 # being built; programs in there won't even run.
2132 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2133   # Search for pre-installed headers if nothing else fits.
2134   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2135 fi
2136
2137 if test "x${use_gnu_ld}" = x &&
2138    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2139   # Arrange for us to find uninstalled linker scripts.
2140   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2141 fi
2142
2143 # Makefile fragments.
2144 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2145 do
2146   eval fragval=\$$frag
2147   if test $fragval != /dev/null; then
2148     eval $frag=${srcdir}/$fragval
2149   fi
2150 done
2151 AC_SUBST_FILE(host_makefile_frag)
2152 AC_SUBST_FILE(target_makefile_frag)
2153 AC_SUBST_FILE(alphaieee_frag)
2154 AC_SUBST_FILE(ospace_frag)
2155
2156 # Miscellanea: directories, flags, etc.
2157 AC_SUBST(RPATH_ENVVAR)
2158 AC_SUBST(tooldir)
2159 AC_SUBST(build_tooldir)
2160 AC_SUBST(CONFIGURE_GDB_TK)
2161 AC_SUBST(GDB_TK)
2162 AC_SUBST(INSTALL_GDB_TK)
2163
2164 # Build module lists & subconfigure args.
2165 AC_SUBST(build_configargs)
2166 AC_SUBST(build_configdirs)
2167
2168 # Host module lists & subconfigure args.
2169 AC_SUBST(host_configargs)
2170 AC_SUBST(configdirs)
2171
2172 # Target module lists & subconfigure args.
2173 AC_SUBST(target_configargs)
2174 AC_SUBST(target_configdirs)
2175
2176 # Build tools.
2177 AC_SUBST(CC_FOR_BUILD)
2178 AC_SUBST(config_shell)
2179
2180 # Generate default definitions for YACC, M4, LEX and other programs that run
2181 # on the build machine.  These are used if the Makefile can't locate these
2182 # programs in objdir.
2183 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2184
2185 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2186 case " $build_configdirs " in
2187   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2188   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2189 esac
2190
2191 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2192 case " $build_configdirs " in
2193   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2194 esac
2195
2196 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2197 case " $build_configdirs " in
2198   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2199 esac
2200
2201 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2202 case " $build_configdirs " in
2203   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2204   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2205 esac
2206
2207 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2208 case " $build_configdirs " in
2209   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2210 esac
2211
2212 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2213 case " $build_configdirs " in
2214   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2215   *)
2216 changequote(,)
2217     # For an installed makeinfo, we require it to be from texinfo 4.2 or
2218     # higher, else we use the "missing" dummy.
2219     if ${MAKEINFO} --version \
2220        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[2-9]|[5-9])' >/dev/null 2>&1; then
2221       :
2222     else
2223       MAKEINFO="$MISSING makeinfo"
2224     fi
2225     ;;
2226 changequote([,])
2227 esac
2228
2229 # FIXME: expect and dejagnu may become build tools?
2230
2231 AC_CHECK_PROGS(EXPECT, expect, expect)
2232 case " $configdirs " in
2233   *" expect "*)
2234     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2235     ;;
2236 esac
2237
2238 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2239 case " $configdirs " in
2240   *" dejagnu "*)
2241     test $host = $build && RUNTEST='$$r/$(HOST_SUBDIR)/dejagnu/runtest'
2242     ;;
2243 esac
2244
2245
2246 # Host tools.
2247 NCN_STRICT_CHECK_TOOLS(AR, ar)
2248 NCN_STRICT_CHECK_TOOLS(AS, as)
2249 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2250 NCN_STRICT_CHECK_TOOLS(LD, ld)
2251 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2252 NCN_STRICT_CHECK_TOOLS(NM, nm)
2253 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2254 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2255 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2256 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2257 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2258 AC_SUBST(CC)
2259 AC_SUBST(CXX)
2260 AC_SUBST(CFLAGS)
2261 AC_SUBST(CFLAGS_FOR_BUILD)
2262 AC_SUBST(CXXFLAGS)
2263
2264 # Target tools.
2265 AC_ARG_WITH([build-time-tools],
2266   [  --with-build-time-tools=path
2267                           use given path to find target tools during the build],
2268   [case x"$withval" in
2269      x/*) ;;
2270      *)
2271        with_build_time_tools=
2272        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2273        ;;
2274    esac],
2275   [with_build_time_tools=])
2276
2277 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2278 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2279 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2280 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2281 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2282
2283 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2284 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2285 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2286 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2287 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2288 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2289 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2290 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2291 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2292 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2293
2294 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2295
2296 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2297 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2298 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2299 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2300                 [gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `test ! -f $$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2301                 c++)
2302 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2303                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2304                 c++)
2305 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2306 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2307 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2308                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2309 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2310                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2311 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2312 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2313 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2314 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2315 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2316 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2317 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2318
2319 AC_SUBST(FLAGS_FOR_TARGET)
2320 AC_SUBST(RAW_CXX_FOR_TARGET)
2321
2322 # Certain tools may need extra flags.
2323 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2324 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2325 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2326
2327 # When building target libraries, except in a Canadian cross, we use
2328 # the same toolchain as the compiler we just built.
2329 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2330 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2331 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2332 if test $host = $build; then
2333   case " $configdirs " in
2334     *" gcc "*)
2335       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2336       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2337       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2338       ;;
2339   esac
2340 fi
2341
2342 AC_SUBST(COMPILER_AS_FOR_TARGET)
2343 AC_SUBST(COMPILER_LD_FOR_TARGET)
2344 AC_SUBST(COMPILER_NM_FOR_TARGET)
2345
2346 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2347 AC_ARG_ENABLE(maintainer-mode,
2348 [  --enable-maintainer-mode enable make rules and dependencies not useful
2349                           (and sometimes confusing) to the casual installer],
2350       USE_MAINTAINER_MODE=$enableval,
2351       USE_MAINTAINER_MODE=no)
2352 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2353 AC_SUBST(MAINTAINER_MODE_TRUE)
2354 AC_SUBST(MAINTAINER_MODE_FALSE)
2355 if test "$USE_MAINTAINER_MODE" = yes; then
2356   MAINTAINER_MODE_TRUE=
2357   MAINTAINER_MODE_FALSE='#'
2358 else
2359   MAINTAINER_MODE_TRUE='#'
2360   MAINTAINER_MODE_FALSE=
2361 fi
2362 MAINT=$MAINTAINER_MODE_TRUE
2363 AC_SUBST(MAINT)dnl
2364
2365 # ---------------------
2366 # GCC bootstrap support
2367 # ---------------------
2368
2369 # Stage specific cflags for build.
2370 stage1_cflags="-g"
2371 case $build in
2372   vax-*-*)
2373     case ${GCC} in
2374       yes) stage1_cflags="-g -Wa,-J" ;;
2375       *) stage1_cflags="-g -J" ;;
2376     esac ;;
2377   powerpc-*-darwin*)
2378     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2379     # sources; use -no-cpp-precomp to get to GNU cpp.
2380     # Apple's GCC has bugs in designated initializer handling, so disable
2381     # that too.
2382     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2383     ;;
2384 esac
2385 AC_SUBST(stage1_cflags)
2386
2387 # Enable -Werror in bootstrap stage2 and later.
2388 # Change the default to "no" on release branches.
2389 AC_ARG_ENABLE(werror,
2390 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2391 [enable_werror=yes])
2392 case ${enable_werror} in
2393   yes) stage2_werror_flag="--enable-werror-always" ;;
2394   *) stage2_werror_flag="" ;;
2395 esac
2396 AC_SUBST(stage2_werror_flag)
2397
2398 AC_OUTPUT(Makefile)