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   BUILD_PREFIX=${build_alias}-
1064   BUILD_PREFIX_1=${build_alias}-
1065
1066 else
1067   # Set reasonable default values for some tools even if not Canadian.
1068   # Of course, these are different reasonable default values, originally
1069   # specified directly in the Makefile.
1070   # We don't export, so that autoconf can do its job.
1071   # Note that all these settings are above the fragment inclusion point
1072   # in Makefile.in, so can still be overridden by fragments.
1073   # This is all going to change when we autoconfiscate...
1074
1075   CC_FOR_BUILD="\$(CC)"
1076   BUILD_PREFIX=
1077   BUILD_PREFIX_1=loser-
1078
1079   AC_PROG_CC
1080
1081   # We must set the default linker to the linker used by gcc for the correct
1082   # operation of libtool.  If LD is not defined and we are using gcc, try to
1083   # set the LD default to the ld used by gcc.
1084   if test -z "$LD"; then
1085     if test "$GCC" = yes; then
1086       case $build in
1087       *-*-mingw*)
1088         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1089       *)
1090         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1091       esac
1092       case $gcc_prog_ld in
1093       # Accept absolute paths.
1094       [[\\/]* | [A-Za-z]:[\\/]*)]
1095         LD="$gcc_prog_ld" ;;
1096       esac
1097     fi
1098   fi
1099
1100   CXX=${CXX-"c++"}
1101   CFLAGS=${CFLAGS-"-g"}
1102   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1103 fi
1104
1105 ACX_PROG_GNAT
1106 ACX_PROG_CMP_IGNORE_INITIAL
1107
1108 # Check for GMP and MPFR
1109 gmplibs=
1110 gmpinc=
1111 have_gmp=yes
1112 # Specify a location for mpfr
1113 # check for this first so it ends up on the link line before gmp.
1114 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1115
1116 if test "x$with_mpfr_dir" != x; then
1117   gmpinc="-I$with_mpfr_dir"
1118   gmplibs="$with_mpfr_dir/libmpfr.a"
1119 else
1120   gmplibs="-lmpfr"
1121 fi
1122
1123 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1124
1125 if test "x$with_mpfr" != x; then
1126   gmplibs="-L$with_mpfr/lib $gmplibs"
1127   gmpinc="-I$with_mpfr/include"
1128 fi
1129
1130 # Specify a location for gmp
1131 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1132
1133 if test "x$with_gmp_dir" != x; then
1134   gmpinc="$gmpinc -I$with_gmp_dir"
1135   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1136     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1137   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1138     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1139   fi
1140   # One of the later tests will catch the error if neither library is present.
1141 else
1142   gmplibs="$gmplibs -lgmp"
1143 fi
1144
1145 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1146
1147 if test "x$with_gmp" != x; then
1148   gmplibs="-L$with_gmp/lib $gmplibs"
1149   gmpinc="-I$with_gmp/include $gmpinc"
1150 fi
1151
1152 saved_CFLAGS="$CFLAGS"
1153 CFLAGS="$CFLAGS $gmpinc"
1154 # Check GMP actually works
1155 AC_MSG_CHECKING([for correct version of gmp.h])
1156 AC_TRY_COMPILE([#include "gmp.h"],[
1157 #if __GNU_MP_VERSION < 3
1158 choke me
1159 #endif
1160 ], [AC_MSG_RESULT([yes])],
1161   [AC_MSG_RESULT([no]); have_gmp=no])
1162
1163 if test x"$have_gmp" = xyes; then
1164   AC_MSG_CHECKING([for MPFR])
1165
1166   saved_LIBS="$LIBS"
1167   LIBS="$LIBS $gmplibs"
1168   AC_TRY_LINK([#include <gmp.h>
1169 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1170     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1171   LIBS="$saved_LIBS"
1172   CFLAGS="$saved_CFLAGS"
1173 fi
1174
1175 # Flags needed for both GMP and/or MPFR
1176 AC_SUBST(gmplibs)
1177 AC_SUBST(gmpinc)
1178
1179 # By default, C is the only stage 1 language.
1180 stage1_languages=c
1181 AC_SUBST(stage1_languages)
1182
1183 # Figure out what language subdirectories are present.
1184 # Look if the user specified --enable-languages="..."; if not, use
1185 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1186 # go away some day.
1187 # NB:  embedded tabs in this IF block -- do not untabify
1188 if test -d ${srcdir}/gcc; then
1189   if test x"${enable_languages+set}" != xset; then
1190     if test x"${LANGUAGES+set}" = xset; then
1191       enable_languages="${LANGUAGES}"
1192         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1193     else
1194       enable_languages=all
1195     fi
1196   else
1197     if test x"${enable_languages}" = x ||
1198        test x"${enable_languages}" = xyes;
1199        then
1200       echo configure.in: --enable-languages needs at least one language argument 1>&2
1201       exit 1
1202     fi
1203   fi
1204   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1205
1206   # 'f95' is the old name for the 'fortran' language. We issue a warning
1207   # and make the substitution.
1208   case ,${enable_languages}, in
1209     *,f95,*)
1210       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1211       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1212       ;;
1213   esac
1214
1215   # First scan to see if an enabled language requires some other language.
1216   # We assume that a given config-lang.in will list all the language
1217   # front ends it requires, even if some are required indirectly.
1218   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1219     case ${lang_frag} in
1220       ..) ;;
1221       # The odd quoting in the next line works around
1222       # an apparent bug in bash 1.12 on linux.
1223       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1224       *)
1225         # From the config-lang.in, get $language, $lang_requires
1226         language=
1227         lang_requires=
1228         . ${lang_frag}
1229         for other in ${lang_requires} ; do
1230           case ,${enable_languages}, in
1231             *,$other,*) ;;
1232             *,all,*) ;;
1233             *,$language,*)
1234               echo " \`$other' language required by \`$language'; enabling" 1>&2
1235               enable_languages="${enable_languages},${other}"
1236               ;;
1237           esac
1238         done
1239         ;;
1240     esac
1241   done
1242
1243   new_enable_languages=c
1244   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1245   potential_languages=c
1246
1247   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1248     case ${lang_frag} in
1249       ..) ;;
1250       # The odd quoting in the next line works around
1251       # an apparent bug in bash 1.12 on linux.
1252       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1253       *)
1254         # From the config-lang.in, get $language, $target_libs,
1255         # $lang_dirs, $boot_language, and $build_by_default
1256         language=
1257         target_libs=
1258         lang_dirs=
1259         boot_language=
1260         build_by_default=
1261         need_gmp=
1262         . ${lang_frag}
1263         potential_languages="${potential_languages},${language}"
1264         # This is quite sensitive to the ordering of the case statement arms.
1265         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1266           *::*:*)
1267             echo "${lang_frag} doesn't set \$language." 1>&2
1268             exit 1
1269             ;;
1270           *:ada:no:*)
1271             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1272             add_this_lang=no
1273             ;;
1274           *,${language},*:*:*:*)
1275             # Language was explicitly selected; include it.
1276             add_this_lang=yes
1277             ;;
1278           *,all,*:*:*:no)
1279             # 'all' was selected, but this is not a default language
1280             # so do not include it.
1281             add_this_lang=no
1282             ;;
1283           *,all,*:*:*:*)
1284             # 'all' was selected and this is a default language; include it.
1285             add_this_lang=yes
1286             ;;
1287           *)
1288             add_this_lang=no
1289             ;;
1290         esac
1291
1292         # Disable languages that need GMP if it isn't available.
1293         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1294           *,${language},*:no:yes)
1295             # Specifically requested language; tell them.
1296             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1297             ;;
1298           *:no:yes)
1299             # Silently disable.
1300             add_this_lang=no
1301             ;;
1302         esac
1303
1304         # Disable a language that is unsupported by the target.
1305         case " $unsupported_languages " in
1306           *" $language "*)
1307             add_this_lang=no
1308             ;;
1309         esac
1310
1311         case $add_this_lang in
1312           no)
1313             # Remove language-dependent dirs.
1314             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1315             ;;
1316           *)
1317             new_enable_languages="$new_enable_languages,$language"
1318             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1319             case ${boot_language} in
1320               yes)
1321                 # Add to (comma-separated) list of stage 1 languages.
1322                 stage1_languages="${stage1_languages},${language}"
1323                 ;;
1324             esac
1325             ;;
1326         esac
1327         ;;
1328     esac
1329   done
1330
1331   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1332   if test "x$missing_languages" != x; then
1333     AC_MSG_ERROR([
1334 The following requested languages could not be built: ${missing_languages}
1335 Recognised languages are: ${potential_languages}])
1336   fi
1337
1338   if test "x$new_enable_languages" != "x$enable_languages"; then
1339     echo The following languages will be built: ${new_enable_languages}
1340   fi
1341   enable_languages="$new_enable_languages"
1342   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1343 fi
1344
1345 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1346 # $build_configdirs and $target_configdirs.
1347 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1348
1349 notsupp=""
1350 for dir in . $skipdirs $noconfigdirs ; do
1351   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1352   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1353     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1354     if test -r $srcdir/$dirname/configure ; then
1355       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1356         true
1357       else
1358         notsupp="$notsupp $dir"
1359       fi
1360     fi
1361   fi
1362   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1363     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1364     if test -r $srcdir/$dirname/configure ; then
1365       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1366         true
1367       else
1368         notsupp="$notsupp $dir"
1369       fi
1370     fi
1371   fi
1372   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1373     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1374     if test -r $srcdir/$dirname/configure ; then
1375       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1376         true
1377       else
1378         notsupp="$notsupp $dir"
1379       fi
1380     fi
1381   fi
1382 done
1383
1384 # Sometimes the tools are distributed with libiberty but with no other
1385 # libraries.  In that case, we don't want to build target-libiberty.
1386 if test -n "${target_configdirs}" ; then
1387   others=
1388   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1389     if test "$i" != "libiberty" ; then
1390       if test -r $srcdir/$i/configure ; then
1391         others=yes;
1392         break;
1393       fi
1394     fi
1395   done
1396   if test -z "${others}" ; then
1397     target_configdirs=
1398   fi
1399 fi
1400
1401 # Quietly strip out all directories which aren't configurable in this tree.
1402 # This relies on all configurable subdirectories being autoconfiscated, which
1403 # is now the case.
1404 build_configdirs_all="$build_configdirs"
1405 build_configdirs=
1406 for i in ${build_configdirs_all} ; do
1407   j=`echo $i | sed -e s/build-//g`
1408   if test -f ${srcdir}/$j/configure ; then
1409     build_configdirs="${build_configdirs} $i"
1410   fi
1411 done
1412
1413 configdirs_all="$configdirs"
1414 configdirs=
1415 for i in ${configdirs_all} ; do
1416   if test -f ${srcdir}/$i/configure ; then
1417     configdirs="${configdirs} $i"
1418   fi
1419 done
1420
1421 target_configdirs_all="$target_configdirs"
1422 target_configdirs=
1423 for i in ${target_configdirs_all} ; do
1424   j=`echo $i | sed -e s/target-//g`
1425   if test -f ${srcdir}/$j/configure ; then
1426     target_configdirs="${target_configdirs} $i"
1427   fi
1428 done
1429
1430 # Produce a warning message for the subdirs we can't configure.
1431 # This isn't especially interesting in the Cygnus tree, but in the individual
1432 # FSF releases, it's important to let people know when their machine isn't
1433 # supported by the one or two programs in a package.
1434
1435 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1436   # If $appdirs is non-empty, at least one of those directories must still
1437   # be configured, or we error out.  (E.g., if the gas release supports a
1438   # specified target in some subdirs but not the gas subdir, we shouldn't
1439   # pretend that all is well.)
1440   if test -n "$appdirs" ; then
1441     for dir in $appdirs ; do
1442       if test -r $dir/Makefile.in ; then
1443         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1444           appdirs=""
1445           break
1446         fi
1447         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1448           appdirs=""
1449           break
1450         fi
1451       fi
1452     done
1453     if test -n "$appdirs" ; then
1454       echo "*** This configuration is not supported by this package." 1>&2
1455       exit 1
1456     fi
1457   fi
1458   # Okay, some application will build, or we don't care to check.  Still
1459   # notify of subdirs not getting built.
1460   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1461   echo "    ${notsupp}" 1>&2
1462   echo "    (Any other directories should still work fine.)" 1>&2
1463 fi
1464
1465 case "$host" in
1466   *msdosdjgpp*)
1467     enable_gdbtk=no ;;
1468 esac
1469
1470 copy_dirs=
1471
1472 AC_ARG_WITH([build-sysroot],
1473   [  --with-build-sysroot=sysroot
1474                           use sysroot as the system root during the build],
1475   [if test x"$withval" != x ; then
1476      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1477    fi],
1478   [SYSROOT_CFLAGS_FOR_TARGET=])
1479 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1480
1481 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1482 # the named directory are copied to $(tooldir)/sys-include.
1483 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1484   if test x${is_cross_compiler} = xno ; then
1485     echo 1>&2 '***' --with-headers is only supported when cross compiling
1486     exit 1
1487   fi
1488   if test x"${with_headers}" != xyes ; then
1489     case "${exec_prefixoption}" in
1490     "") x=${prefix} ;;
1491     *) x=${exec_prefix} ;;
1492     esac
1493     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1494   fi
1495 fi
1496
1497 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1498 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1499 # are permitted.
1500 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1501   if test x${is_cross_compiler} = xno ; then
1502     echo 1>&2 '***' --with-libs is only supported when cross compiling
1503     exit 1
1504   fi
1505   if test x"${with_libs}" != xyes ; then
1506     # Copy the libraries in reverse order, so that files in the first named
1507     # library override files in subsequent libraries.
1508     case "${exec_prefixoption}" in
1509     "") x=${prefix} ;;
1510     *) x=${exec_prefix} ;;
1511     esac
1512     for l in ${with_libs}; do
1513       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1514     done
1515   fi
1516 fi
1517
1518 # Set with_gnu_as and with_gnu_ld as appropriate.
1519 #
1520 # This is done by determining whether or not the appropriate directory
1521 # is available, and by checking whether or not specific configurations
1522 # have requested that this magic not happen.
1523 #
1524 # The command line options always override the explicit settings in
1525 # configure.in, and the settings in configure.in override this magic.
1526 #
1527 # If the default for a toolchain is to use GNU as and ld, and you don't
1528 # want to do that, then you should use the --without-gnu-as and
1529 # --without-gnu-ld options for the configure script.
1530
1531 if test x${use_gnu_as} = x &&
1532    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1533   with_gnu_as=yes
1534   extra_host_args="$extra_host_args --with-gnu-as"
1535 fi
1536
1537 if test x${use_gnu_ld} = x &&
1538    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1539   with_gnu_ld=yes
1540   extra_host_args="$extra_host_args --with-gnu-ld"
1541 fi
1542
1543 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1544 # can detect this case.
1545
1546 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1547   with_newlib=yes
1548   extra_host_args="$extra_host_args --with-newlib"
1549 fi
1550
1551 # Handle ${copy_dirs}
1552 set fnord ${copy_dirs}
1553 shift
1554 while test $# != 0 ; do
1555   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1556     :
1557   else
1558     echo Copying $1 to $2
1559
1560     # Use the install script to create the directory and all required
1561     # parent directories.
1562     if test -d $2 ; then
1563       :
1564     else
1565       echo >config.temp
1566       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1567     fi
1568
1569     # Copy the directory, assuming we have tar.
1570     # FIXME: Should we use B in the second tar?  Not all systems support it.
1571     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1572
1573     # It is the responsibility of the user to correctly adjust all
1574     # symlinks.  If somebody can figure out how to handle them correctly
1575     # here, feel free to add the code.
1576
1577     echo $1 > $2/COPIED
1578   fi
1579   shift; shift
1580 done
1581
1582 # Determine a target-dependent exec_prefix that the installed
1583 # gcc will search in.  Keep this list sorted by triplet, with
1584 # the *-*-osname triplets last.
1585 md_exec_prefix=
1586 case "${target}" in
1587   alpha*-*-*vms*)
1588     md_exec_prefix=/gnu/lib/gcc-lib
1589     ;;
1590   i[34567]86-pc-msdosdjgpp*)
1591     md_exec_prefix=/dev/env/DJDIR/bin
1592     ;;
1593   i[34567]86-*-sco3.2v5*)
1594     if test $with_gnu_as = yes; then
1595       md_exec_prefix=/usr/gnu/bin
1596     else
1597       md_exec_prefix=/usr/ccs/bin/elf
1598     fi
1599     ;;
1600
1601   mn10300-*-* | \
1602   powerpc-*-chorusos* | \
1603   powerpc*-*-eabi* | \
1604   powerpc*-*-sysv* | \
1605   powerpc*-*-kaos* | \
1606   s390x-ibm-tpf*)
1607     md_exec_prefix=/usr/ccs/bin
1608     ;;
1609   sparc64-*-elf*)
1610     ;;
1611   v850*-*-*)
1612     md_exec_prefix=/usr/ccs/bin
1613     ;;
1614   xtensa-*-elf*)
1615     ;;
1616
1617   *-*-beos* | \
1618   *-*-elf* | \
1619   *-*-hpux* | \
1620   *-*-netware* | \
1621   *-*-nto-qnx* | \
1622   *-*-rtems* | \
1623   *-*-solaris2* | \
1624   *-*-sysv[45]* | \
1625   *-*-vxworks* | \
1626   *-wrs-windiss)
1627     md_exec_prefix=/usr/ccs/bin
1628     ;;
1629 esac
1630
1631 extra_arflags_for_target=
1632 extra_nmflags_for_target=
1633 extra_ranlibflags_for_target=
1634 target_makefile_frag=/dev/null
1635 case "${target}" in
1636   *-*-netware*)
1637     target_makefile_frag="config/mt-netware"
1638     ;;
1639   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1640     target_makefile_frag="config/mt-gnu"
1641     ;;
1642   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1643     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1644     # commands to handle both 32-bit and 64-bit objects.  These flags are
1645     # harmless if we're using GNU nm or ar.
1646     extra_arflags_for_target=" -X32_64"
1647     extra_nmflags_for_target=" -B -X32_64"
1648     ;;
1649   *-*-darwin*)
1650     # ranlib from Darwin requires the -c flag to look at common symbols.
1651     extra_ranlibflags_for_target=" -c"
1652     ;;
1653   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1654     target_makefile_frag="config/mt-wince"
1655     ;;
1656 esac
1657
1658 alphaieee_frag=/dev/null
1659 case $target in
1660   alpha*-*-*)
1661     # This just makes sure to use the -mieee option to build target libs.
1662     # This should probably be set individually by each library.
1663     alphaieee_frag="config/mt-alphaieee"
1664     ;;
1665 esac
1666
1667 # If --enable-target-optspace always use -Os instead of -O2 to build
1668 # the target libraries, similarly if it is not specified, use -Os
1669 # on selected platforms.
1670 ospace_frag=/dev/null
1671 case "${enable_target_optspace}:${target}" in
1672   yes:*)
1673     ospace_frag="config/mt-ospace"
1674     ;;
1675   :d30v-*)
1676     ospace_frag="config/mt-d30v"
1677     ;;
1678   :m32r-* | :d10v-* | :fr30-*)
1679     ospace_frag="config/mt-ospace"
1680     ;;
1681   no:* | :*)
1682     ;;
1683   *)
1684     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1685     ;;
1686 esac
1687
1688 # Default to using --with-stabs for certain targets.
1689 if test x${with_stabs} = x ; then
1690   case "${target}" in
1691   mips*-*-irix[[56]]*)
1692     ;;
1693   mips*-*-* | alpha*-*-osf*)
1694     with_stabs=yes;
1695     extra_host_args="${extra_host_args} --with-stabs"
1696     ;;
1697   esac
1698 fi
1699
1700 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1701 # them automatically.
1702 case "${host}" in
1703   hppa*64*-*-hpux11*)
1704     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1705     ;;
1706 esac
1707
1708 # Some systems (e.g., one of the i386-aix systems the gas testers are
1709 # using) don't handle "\$" correctly, so don't use it here.
1710 tooldir='${exec_prefix}'/${target_alias}
1711 build_tooldir=${tooldir}
1712
1713 # Create a .gdbinit file which runs the one in srcdir
1714 # and tells GDB to look there for source files.
1715
1716 if test -r ${srcdir}/.gdbinit ; then
1717   case ${srcdir} in
1718     .) ;;
1719     *) cat > ./.gdbinit <<EOF
1720 # ${NO_EDIT}
1721 dir ${srcdir}
1722 dir .
1723 source ${srcdir}/.gdbinit
1724 EOF
1725     ;;
1726   esac
1727 fi
1728
1729 # Make sure that the compiler is able to generate an executable.  If it
1730 # can't, we are probably in trouble.  We don't care whether we can run the
1731 # executable--we might be using a cross compiler--we only care whether it
1732 # can be created.  At this point the main configure script has set CC.
1733 we_are_ok=no
1734 echo "int main () { return 0; }" > conftest.c
1735 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1736 if test $? = 0 ; then
1737   if test -s conftest || test -s conftest.exe ; then
1738     we_are_ok=yes
1739   fi
1740 fi
1741 case $we_are_ok in
1742   no)
1743     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1744     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1745     rm -f conftest*
1746     exit 1
1747     ;;
1748 esac
1749 rm -f conftest*
1750
1751 # The Solaris /usr/ucb/cc compiler does not appear to work.
1752 case "${host}" in
1753   sparc-sun-solaris2*)
1754       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1755       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1756           could_use=
1757           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1758           if test -d /opt/cygnus/bin ; then
1759               if test "$could_use" = "" ; then
1760                   could_use="/opt/cygnus/bin"
1761               else
1762                   could_use="$could_use or /opt/cygnus/bin"
1763               fi
1764           fi
1765         if test "$could_use" = "" ; then
1766             echo "Warning: compilation may fail because you're using"
1767             echo "/usr/ucb/cc.  You should change your PATH or CC "
1768             echo "variable and rerun configure."
1769         else
1770             echo "Warning: compilation may fail because you're using"
1771             echo "/usr/ucb/cc, when you should use the C compiler from"
1772             echo "$could_use.  You should change your"
1773             echo "PATH or CC variable and rerun configure."
1774         fi
1775       fi
1776   ;;
1777 esac
1778
1779 case "${host}" in
1780   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1781   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1782   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1783 esac
1784
1785 # Record target_configdirs and the configure arguments for target and
1786 # build configuration in Makefile.
1787 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1788 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1789
1790 # Determine whether gdb needs tk/tcl or not.
1791 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1792 # and in that case we want gdb to be built without tk.  Ugh!
1793 # In fact I believe gdb is the *only* package directly dependent on tk,
1794 # so we should be able to put the 'maybe's in unconditionally and
1795 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1796 # 100% sure that that's safe though.
1797
1798 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1799 case "$enable_gdbtk" in
1800   no)
1801     GDB_TK="" ;;
1802   yes)
1803     GDB_TK="${gdb_tk}" ;;
1804   *)
1805     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1806     # distro.  Eventually someone will fix this and move Insight, nee
1807     # gdbtk to a separate directory.
1808     if test -d ${srcdir}/gdb/gdbtk ; then
1809       GDB_TK="${gdb_tk}"
1810     else
1811       GDB_TK=""
1812     fi
1813     ;;
1814 esac
1815 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1816 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1817
1818 # Strip out unwanted targets.
1819
1820 # While at that, we remove Makefiles if we were started for recursive
1821 # configuration, so that the top-level Makefile reconfigures them,
1822 # like we used to do when configure itself was recursive.
1823
1824 # Loop over modules.  $extrasub must be used with care, limiting as
1825 # much as possible the usage of range addresses.  That's because autoconf
1826 # splits the sed script to overcome limits in the number of commands,
1827 # and relying on carefully-timed sed passes may turn out to be very hard
1828 # to maintain later.  In this particular case, you just have to be careful
1829 # not to nest @if/@endif pairs, because configure will not warn you at all.
1830
1831 AC_ARG_ENABLE([bootstrap],
1832 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1833 enable_bootstrap=default)
1834
1835 # Issue errors and warnings for invalid/strange bootstrap combinations.
1836 case "$configdirs" in
1837   *gcc*) have_compiler=yes ;;
1838   *) have_compiler=no ;;
1839 esac
1840
1841 case "$have_compiler:$host:$target:$enable_bootstrap" in
1842   *:*:*:no) ;;
1843
1844   # Default behavior.  Enable bootstrap if we have a compiler
1845   # and we are in a native configuration.
1846   yes:$build:$build:default)
1847     enable_bootstrap=yes ;;
1848
1849   *:*:*:default)
1850     enable_bootstrap=no ;;
1851
1852   # We have a compiler and we are in a native configuration, bootstrap is ok
1853   yes:$build:$build:yes)
1854     ;;
1855
1856   # Other configurations, but we have a compiler.  Assume the user knows
1857   # what he's doing.
1858   yes:*:*:yes)
1859     AC_MSG_WARN([trying to bootstrap a cross compiler])
1860     ;;
1861
1862   # No compiler: if they passed --enable-bootstrap explicitly, fail
1863   no:*:*:yes)
1864     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1865
1866   # Fail if wrong command line
1867   *)
1868     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1869     ;;
1870 esac
1871
1872 # Adjust the toplevel makefile according to whether bootstrap was selected.
1873 case "$enable_bootstrap" in
1874   yes)
1875     bootstrap_suffix=bootstrap ;;
1876   no)
1877     bootstrap_suffix=no-bootstrap ;;
1878 esac
1879
1880 for module in ${build_configdirs} ; do
1881   if test -z "${no_recursion}" \
1882      && test -f ${build_subdir}/${module}/Makefile; then
1883     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1884     rm -f ${build_subdir}/${module}/Makefile
1885   fi
1886   extrasub="$extrasub
1887 /^@if build-$module\$/d
1888 /^@endif build-$module\$/d
1889 /^@if build-$module-$bootstrap_suffix\$/d
1890 /^@endif build-$module-$bootstrap_suffix\$/d"
1891 done
1892 for module in ${configdirs} ; do
1893   if test -z "${no_recursion}"; then
1894     for file in stage*-${module}/Makefile ${module}/Makefile; do
1895       if test -f ${file}; then
1896         echo 1>&2 "*** removing ${file} to force reconfigure"
1897         rm -f ${file}
1898       fi
1899     done
1900   fi
1901   extrasub="$extrasub
1902 /^@if $module\$/d
1903 /^@endif $module\$/d
1904 /^@if $module-$bootstrap_suffix\$/d
1905 /^@endif $module-$bootstrap_suffix\$/d"
1906 done
1907 for module in ${target_configdirs} ; do
1908   if test -z "${no_recursion}" \
1909      && test -f ${target_subdir}/${module}/Makefile; then
1910     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1911     rm -f ${target_subdir}/${module}/Makefile
1912   fi
1913   extrasub="$extrasub
1914 /^@if target-$module\$/d
1915 /^@endif target-$module\$/d
1916 /^@if target-$module-$bootstrap_suffix\$/d
1917 /^@endif target-$module-$bootstrap_suffix\$/d"
1918 done
1919
1920 extrasub="$extrasub
1921 /^@if /,/^@endif /d"
1922
1923 # Create the serialization dependencies.  This uses a temporary file.
1924
1925 AC_ARG_ENABLE([serial-configure],
1926 [  --enable-serial-[{host,target,build}-]configure
1927                           Force sequential configuration of
1928                           sub-packages for the host, target or build
1929                           machine, or all sub-packages])
1930
1931 case ${enable_serial_configure} in
1932   yes)
1933     enable_serial_build_configure=yes
1934     enable_serial_host_configure=yes
1935     enable_serial_target_configure=yes
1936     ;;
1937 esac
1938
1939 # These force 'configure's to be done one at a time, to avoid problems
1940 # with contention over a shared config.cache.
1941 rm -f serdep.tmp
1942 echo '# serdep.tmp' > serdep.tmp
1943 olditem=
1944 test "x${enable_serial_build_configure}" = xyes &&
1945 for item in ${build_configdirs} ; do
1946   case ${olditem} in
1947     "") ;;
1948     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1949   esac
1950   olditem=${item}
1951 done
1952 olditem=
1953 test "x${enable_serial_host_configure}" = xyes &&
1954 for item in ${configdirs} ; do
1955   case ${olditem} in
1956     "") ;;
1957     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1958   esac
1959   olditem=${item}
1960 done
1961 olditem=
1962 test "x${enable_serial_target_configure}" = xyes &&
1963 for item in ${target_configdirs} ; do
1964   case ${olditem} in
1965     "") ;;
1966     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1967   esac
1968   olditem=${item}
1969 done
1970 serialization_dependencies=serdep.tmp
1971 AC_SUBST_FILE(serialization_dependencies)
1972
1973 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1974 # target and nonopt.  These are the ones we might not want to pass
1975 # down to subconfigures.  Also strip program-prefix, program-suffix,
1976 # and program-transform-name, so that we can pass down a consistent
1977 # program-transform-name.  If autoconf has put single quotes around
1978 # any of these arguments (because they contain shell metacharacters)
1979 # then this will fail; in practice this only happens for
1980 # --program-transform-name, so be sure to override --program-transform-name
1981 # at the end of the argument list.
1982 # These will be expanded by make, so quote '$'.
1983 cat <<\EOF_SED > conftestsed
1984 s/ --no[[^ ]]*/ /g
1985 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1986 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1987 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1988 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1989 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1990 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1991 s/ -cache-file[[= ]][[^ ]]*//g
1992 s/ -srcdir[[= ]][[^ ]]*//g
1993 s/ -host[[= ]][[^ ]]*//g
1994 s/ -build[[= ]][[^ ]]*//g
1995 s/ -target[[= ]][[^ ]]*//g
1996 s/ -program-prefix[[= ]][[^ ]]*//g
1997 s/ -program-suffix[[= ]][[^ ]]*//g
1998 s/ -program-transform-name[[= ]][[^ ]]*//g
1999 s/ [[^' -][^ ]*] / /
2000 s/^ *//;s/ *$//
2001 s,\$,$$,g
2002 EOF_SED
2003 sed -f conftestsed <<EOF_SED > conftestsed.out
2004  ${ac_configure_args}
2005 EOF_SED
2006 baseargs=`cat conftestsed.out`
2007 rm -f conftestsed conftestsed.out
2008
2009 # Add in --program-transform-name, after --program-prefix and
2010 # --program-suffix have been applied to it.  Autoconf has already
2011 # doubled dollar signs and backslashes in program_transform_name; we want
2012 # the backslashes un-doubled, and then the entire thing wrapped in single
2013 # quotes, because this will be expanded first by make and then by the shell.
2014 # Also, because we want to override the logic in subdir configure scripts to
2015 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2016 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2017 ${program_transform_name}
2018 EOF_SED
2019 gcc_transform_name=`cat conftestsed.out`
2020 rm -f conftestsed.out
2021 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2022
2023 # For the build-side libraries, we just need to pretend we're native,
2024 # and not use the same cache file.  Multilibs are neither needed nor
2025 # desired.
2026 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
2027
2028 # For host modules, accept cache file option, or specification as blank.
2029 case "${cache_file}" in
2030 "") # empty
2031   cache_file_option="" ;;
2032 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2033   cache_file_option="--cache-file=${cache_file}" ;;
2034 *) # relative path
2035   cache_file_option="--cache-file=../${cache_file}" ;;
2036 esac
2037
2038 # Host dirs don't like to share a cache file either, horribly enough.
2039 # This seems to be due to autoconf 2.5x stupidity.
2040 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
2041
2042 target_configargs=${baseargs}
2043
2044 # Passing a --with-cross-host argument lets the target libraries know
2045 # whether they are being built with a cross-compiler or being built
2046 # native.  However, it would be better to use other mechanisms to make the
2047 # sorts of decisions they want to make on this basis.  Please consider
2048 # this option to be deprecated.  FIXME.
2049 if test x${is_cross_compiler} = xyes ; then
2050   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2051 fi
2052
2053 # Default to --enable-multilib.
2054 if test x${enable_multilib} = x ; then
2055   target_configargs="--enable-multilib ${target_configargs}"
2056 fi
2057
2058 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2059 # changed from the earlier setting of with_newlib.
2060 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2061   target_configargs="--with-newlib ${target_configargs}"
2062 fi
2063
2064 # Different target subdirs use different values of certain variables
2065 # (notably CXX).  Worse, multilibs use *lots* of different values.
2066 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2067 # it doesn't automatically accept command-line overrides of them.
2068 # This means it's not safe for target subdirs to share a cache file,
2069 # which is disgusting, but there you have it.  Hopefully this can be
2070 # fixed in future.  It's still worthwhile to use a cache file for each
2071 # directory.  I think.
2072
2073 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2074 # We need to pass --target, as newer autoconf's requires consistency
2075 # for target_alias and gcc doesn't manage it consistently.
2076 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2077
2078 FLAGS_FOR_TARGET=
2079 case " $target_configdirs " in
2080  *" newlib "*)
2081   case " $target_configargs " in
2082   *" --with-newlib "*)
2083    case "$target" in
2084    *-cygwin*)
2085      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' ;;
2086    esac
2087
2088    # If we're not building GCC, don't discard standard headers.
2089    if test -d ${srcdir}/gcc; then
2090      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2091
2092      if test "${build}" != "${host}"; then
2093        # On Canadian crosses, CC_FOR_TARGET will have already been set
2094        # by `configure', so we won't have an opportunity to add -Bgcc/
2095        # to it.  This is right: we don't want to search that directory
2096        # for binaries, but we want the header files in there, so add
2097        # them explicitly.
2098        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2099
2100        # Someone might think of using the pre-installed headers on
2101        # Canadian crosses, in case the installed compiler is not fully
2102        # compatible with the compiler being built.  In this case, it
2103        # would be better to flag an error than risking having
2104        # incompatible object files being constructed.  We can't
2105        # guarantee that an error will be flagged, but let's hope the
2106        # compiler will do it, when presented with incompatible header
2107        # files.
2108      fi
2109    fi
2110
2111    case "${target}-${is_cross_compiler}" in
2112    i[[3456789]]86-*-linux*-no)
2113       # Here host == target, so we don't need to build gcc,
2114       # so we don't want to discard standard headers.
2115       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2116       ;;
2117    *)
2118       # If we're building newlib, use its generic headers last, but search
2119       # for any libc-related directories first (so make it the last -B
2120       # switch).
2121       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2122       ;;
2123    esac
2124    ;;
2125   esac
2126   ;;
2127 esac
2128
2129 # Allow the user to override the flags for
2130 # our build compiler if desired.
2131 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2132
2133 # On Canadian crosses, we'll be searching the right directories for
2134 # the previously-installed cross compiler, so don't bother to add
2135 # flags for directories within the install tree of the compiler
2136 # being built; programs in there won't even run.
2137 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2138   # Search for pre-installed headers if nothing else fits.
2139   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2140 fi
2141
2142 if test "x${use_gnu_ld}" = x &&
2143    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2144   # Arrange for us to find uninstalled linker scripts.
2145   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2146 fi
2147
2148 # Makefile fragments.
2149 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2150 do
2151   eval fragval=\$$frag
2152   if test $fragval != /dev/null; then
2153     eval $frag=${srcdir}/$fragval
2154   fi
2155 done
2156 AC_SUBST_FILE(host_makefile_frag)
2157 AC_SUBST_FILE(target_makefile_frag)
2158 AC_SUBST_FILE(alphaieee_frag)
2159 AC_SUBST_FILE(ospace_frag)
2160
2161 # Miscellanea: directories, flags, etc.
2162 AC_SUBST(RPATH_ENVVAR)
2163 AC_SUBST(BUILD_PREFIX)
2164 AC_SUBST(BUILD_PREFIX_1)
2165 AC_SUBST(tooldir)
2166 AC_SUBST(build_tooldir)
2167 AC_SUBST(CONFIGURE_GDB_TK)
2168 AC_SUBST(GDB_TK)
2169 AC_SUBST(INSTALL_GDB_TK)
2170
2171 # Build module lists & subconfigure args.
2172 AC_SUBST(build_configargs)
2173 AC_SUBST(build_configdirs)
2174
2175 # Host module lists & subconfigure args.
2176 AC_SUBST(host_configargs)
2177 AC_SUBST(configdirs)
2178
2179 # Target module lists & subconfigure args.
2180 AC_SUBST(target_configargs)
2181 AC_SUBST(target_configdirs)
2182
2183 # Build tools.
2184 AC_SUBST(CC_FOR_BUILD)
2185 AC_SUBST(config_shell)
2186
2187 # Generate default definitions for YACC, M4, LEX and other programs that run
2188 # on the build machine.  These are used if the Makefile can't locate these
2189 # programs in objdir.
2190 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2191
2192 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2193 case " $build_configdirs " in
2194   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2195   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2196 esac
2197
2198 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2199 case " $build_configdirs " in
2200   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2201 esac
2202
2203 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2204 case " $build_configdirs " in
2205   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2206 esac
2207
2208 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2209 case " $build_configdirs " in
2210   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2211   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2212 esac
2213
2214 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2215 case " $build_configdirs " in
2216   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2217 esac
2218
2219 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2220 case " $build_configdirs " in
2221   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2222   *)
2223 changequote(,)
2224     # For an installed makeinfo, we require it to be from texinfo 4.2 or
2225     # higher, else we use the "missing" dummy.
2226     if ${MAKEINFO} --version \
2227        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[2-9]|[5-9])' >/dev/null 2>&1; then
2228       :
2229     else
2230       MAKEINFO="$MISSING makeinfo"
2231     fi
2232     ;;
2233 changequote([,])
2234 esac
2235
2236 # FIXME: expect and dejagnu may become build tools?
2237
2238 AC_CHECK_PROGS(EXPECT, expect, expect)
2239 case " $configdirs " in
2240   *" expect "*)
2241     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2242     ;;
2243 esac
2244
2245 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2246 case " $configdirs " in
2247   *" dejagnu "*)
2248     test $host = $build && RUNTEST='$$r/$(HOST_SUBDIR)/dejagnu/runtest'
2249     ;;
2250 esac
2251
2252
2253 # Host tools.
2254 NCN_STRICT_CHECK_TOOLS(AR, ar)
2255 NCN_STRICT_CHECK_TOOLS(AS, as)
2256 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2257 NCN_STRICT_CHECK_TOOLS(LD, ld)
2258 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2259 NCN_STRICT_CHECK_TOOLS(NM, nm)
2260 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2261 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2262 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2263 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2264 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2265 AC_SUBST(CC)
2266 AC_SUBST(CXX)
2267 AC_SUBST(CFLAGS)
2268 AC_SUBST(CFLAGS_FOR_BUILD)
2269 AC_SUBST(CXXFLAGS)
2270
2271 # Target tools.
2272 AC_ARG_WITH([build-time-tools],
2273   [  --with-build-time-tools=path
2274                           use given path to find target tools during the build],
2275   [case x"$withval" in
2276      x/*) ;;
2277      *)
2278        with_build_time_tools=
2279        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2280        ;;
2281    esac],
2282   [with_build_time_tools=])
2283
2284 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2285 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2286 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2287 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2288 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2289
2290 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2291 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2292 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2293 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2294 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2295 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2296 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2297 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2298 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2299 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2300
2301 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2302
2303 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2304 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2305 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2306 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2307                 [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$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2308                 c++)
2309 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2310                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2311                 c++)
2312 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2313 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2314 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2315                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2316 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2317                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2318 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2319 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2320 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2321 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2322 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2323 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2324 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2325
2326 AC_SUBST(FLAGS_FOR_TARGET)
2327 AC_SUBST(RAW_CXX_FOR_TARGET)
2328
2329 # Certain tools may need extra flags.
2330 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2331 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2332 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2333
2334 # When building target libraries, except in a Canadian cross, we use
2335 # the same toolchain as the compiler we just built.
2336 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2337 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2338 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2339 if test $host = $build; then
2340   case " $configdirs " in
2341     *" gcc "*)
2342       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2343       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2344       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2345       ;;
2346   esac
2347 fi
2348
2349 AC_SUBST(COMPILER_AS_FOR_TARGET)
2350 AC_SUBST(COMPILER_LD_FOR_TARGET)
2351 AC_SUBST(COMPILER_NM_FOR_TARGET)
2352
2353 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2354 AC_ARG_ENABLE(maintainer-mode,
2355 [  --enable-maintainer-mode enable make rules and dependencies not useful
2356                           (and sometimes confusing) to the casual installer],
2357       USE_MAINTAINER_MODE=$enableval,
2358       USE_MAINTAINER_MODE=no)
2359 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2360 AC_SUBST(MAINTAINER_MODE_TRUE)
2361 AC_SUBST(MAINTAINER_MODE_FALSE)
2362 if test "$USE_MAINTAINER_MODE" = yes; then
2363   MAINTAINER_MODE_TRUE=
2364   MAINTAINER_MODE_FALSE='#'
2365 else
2366   MAINTAINER_MODE_TRUE='#'
2367   MAINTAINER_MODE_FALSE=
2368 fi
2369 MAINT=$MAINTAINER_MODE_TRUE
2370 AC_SUBST(MAINT)dnl
2371
2372 # ---------------------
2373 # GCC bootstrap support
2374 # ---------------------
2375
2376 # Stage specific cflags for build.
2377 stage1_cflags="-g"
2378 case $build in
2379   vax-*-*)
2380     case ${GCC} in
2381       yes) stage1_cflags="-g -Wa,-J" ;;
2382       *) stage1_cflags="-g -J" ;;
2383     esac ;;
2384   powerpc-*-darwin*)
2385     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2386     # sources; use -no-cpp-precomp to get to GNU cpp.
2387     # Apple's GCC has bugs in designated initializer handling, so disable
2388     # that too.
2389     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2390     ;;
2391 esac
2392 AC_SUBST(stage1_cflags)
2393
2394 # Enable -Werror in bootstrap stage2 and later.
2395 # Change the default to "no" on release branches.
2396 AC_ARG_ENABLE(werror,
2397 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2398 [enable_werror=yes])
2399 case ${enable_werror} in
2400   yes) stage2_werror_flag="--enable-werror-always" ;;
2401   *) stage2_werror_flag="" ;;
2402 esac
2403 AC_SUBST(stage2_werror_flag)
2404
2405 AC_OUTPUT(Makefile)