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-libgfortran \
 152                 ${libgcj} \
 153                 target-libobjc \
 154                 target-libada \
 155                 target-libgomp"
 156
 157 # these tools are built using the target libraries, and are intended to
 158 # run only in the target environment
 159 #
 160 # note: any program that *uses* libraries that are in the "target_libraries"
 161 # list belongs in this list.  those programs are also very likely
 162 # candidates for the "native_only" list which follows
 163 #
 164 target_tools="target-examples target-groff target-gperf target-rda"
 165
 166 ################################################################################
 167
 168 ## All tools belong in one of the four categories, and are assigned above
 169 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 170 ## is important because configure will choke if they ever get through.
 171 ## ${configdirs} is directories we build using the host tools.
 172 ## ${target_configdirs} is directories we build using the target tools.
 173 configdirs=`echo ${host_libs} ${host_tools}`
 174 target_configdirs=`echo ${target_libraries} ${target_tools}`
 175 build_configdirs=`echo ${build_libs} ${build_tools}`
 176
 177 ################################################################################
 178
 179 srcname="gnu development package"
 180
 181 # This gets set non-empty for some net releases of packages.
 182 appdirs=""
 183
 184 # Define is_cross_compiler to save on calls to 'test'.
 185 is_cross_compiler=
 186 if test x"${host}" = x"${target}" ; then
 187   is_cross_compiler=no
 188 else
 189   is_cross_compiler=yes
 190 fi
 191
 192 # Find the build and target subdir names.
 193 GCC_TOPLEV_SUBDIRS
 194
 195 # Skipdirs are removed silently.
 196 skipdirs=
 197 # Noconfigdirs are removed loudly.
 198 noconfigdirs=""
 199
 200 use_gnu_ld=
 201 # Make sure we don't let GNU ld be added if we didn't want it.
 202 if test x$with_gnu_ld = xno ; then
 203   use_gnu_ld=no
 204   noconfigdirs="$noconfigdirs ld"
 205 fi
 206
 207 use_gnu_as=
 208 # Make sure we don't let GNU as be added if we didn't want it.
 209 if test x$with_gnu_as = xno ; then
 210   use_gnu_as=no
 211   noconfigdirs="$noconfigdirs gas"
 212 fi
 213
 214 # some tools are so dependent upon X11 that if we're not building with X,
 215 # it's not even worth trying to configure, much less build, that tool.
 216
 217 case ${with_x} in
 218   yes | "") ;; # the default value for this tree is that X11 is available
 219   no)
 220     skipdirs="${skipdirs} tk itcl libgui"
 221     # We won't be able to build gdbtk without X.
 222     enable_gdbtk=no
 223     ;;
 224   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 225 esac
 226
 227 # Some tools are only suitable for building in a "native" situation.
 228 # Remove these if host!=target.
 229 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 230
 231 # Similarly, some are only suitable for cross toolchains.
 232 # Remove these if host=target.
 233 cross_only="target-libgloss target-newlib target-opcodes"
 234
 235 case $is_cross_compiler in
 236   no) skipdirs="${skipdirs} ${cross_only}" ;;
 237   yes) skipdirs="${skipdirs} ${native_only}" ;;
 238 esac
 239
 240 # If both --with-headers and --with-libs are specified, default to
 241 # --without-newlib.
 242 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 243    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 244   if test x"${with_newlib}" = x ; then
 245     with_newlib=no
 246   fi
 247 fi
 248
 249 # Recognize --with-newlib/--without-newlib.
 250 case ${with_newlib} in
 251   no) skipdirs="${skipdirs} target-newlib" ;;
 252   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 253 esac
 254
 255 # Configure extra directories which are host specific
 256
 257 case "${host}" in
 258   *-cygwin*)
 259     configdirs="$configdirs libtermcap" ;;
 260 esac
 261
 262 # A target can indicate whether a language isn't supported for some reason.
 263 # Only spaces may be used in this macro; not newlines or tabs.
 264 unsupported_languages=
 265
 266 # Remove more programs from consideration, based on the host or
 267 # target this usually means that a port of the program doesn't
 268 # exist yet.
 269
 270 case "${host}" in
 271   hppa*64*-*-*)
 272     noconfigdirs="$noconfigdirs byacc"
 273     ;;
 274   i[[3456789]]86-*-vsta)
 275     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 276     ;;
 277   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 278     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 279     ;;
 280   i[[3456789]]86-*-mingw32*)
 281     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 282     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 283     ;;
 284   i[[3456789]]86-*-beos*)
 285     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 286     ;;
 287   *-*-cygwin*)
 288     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 289     ;;
 290   *-*-netbsd*)
 291     noconfigdirs="$noconfigdirs rcs"
 292     ;;
 293   ppc*-*-pe)
 294     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 295     ;;
 296   powerpc-*-beos*)
 297     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 298     ;;
 299 esac
 300
 301
 302 AC_ARG_ENABLE(libada,
 303 [  --enable-libada        Builds libada directory],
 304 ENABLE_LIBADA=$enableval,
 305 ENABLE_LIBADA=yes)
 306 if test "${ENABLE_LIBADA}" != "yes" ; then
 307   noconfigdirs="$noconfigdirs gnattools"
 308 fi
 309
 310 AC_ARG_ENABLE(libssp,
 311 [  --enable-libssp        Builds libssp directory],
 312 ENABLE_LIBSSP=$enableval,
 313 ENABLE_LIBSSP=yes)
 314
 315 # Save it here so that, even in case of --enable-libgcj, if the Java
 316 # front-end isn't enabled, we still get libgcj disabled.
 317 libgcj_saved=$libgcj
 318 case $enable_libgcj in
 319 yes)
 320   # If we reset it here, it won't get added to noconfigdirs in the
 321   # target-specific build rules, so it will be forcibly enabled
 322   # (unless the Java language itself isn't enabled).
 323   libgcj=
 324   ;;
 325 no)
 326   # Make sure we get it printed in the list of not supported target libs.
 327   noconfigdirs="$noconfigdirs ${libgcj}"
 328   ;;
 329 esac
 330
 331
 332 # Disable libmudflap on some systems.
 333 if test x$enable_libmudflap = x ; then
 334     case "${target}" in
 335     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 336         # Enable libmudflap by default in GNU and friends.
 337         ;;
 338     *-*-freebsd*)
 339         # Enable libmudflap by default in FreeBSD.
 340         ;;
 341     *)
 342         # Disable it by default everywhere else.
 343         noconfigdirs="$noconfigdirs target-libmudflap"
 344         ;;
 345     esac
 346 fi
 347
 348 # Disable libgomp on non POSIX hosted systems.
 349 if test x$enable_libgomp = x ; then
 350     # Enable libgomp by default on hosted POSIX systems.
 351     case "${target}" in
 352     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 353         ;;
 354     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 355         ;;
 356     *-*-solaris2* | *-*-sysv4* | *-*-irix* | *-*-osf* | *-*-hpux*)
 357         ;;
 358     *-*-darwin* | *-*-aix*)
 359         ;;
 360     *)
 361         noconfigdirs="$noconfigdirs target-libgomp"
 362         ;;
 363     esac
 364 fi
 365
 366
 367 case "${target}" in
 368   *-*-chorusos)
 369     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 370     ;;
 371   powerpc-*-darwin*)
 372     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 373     noconfigdirs="$noconfigdirs sim target-rda"
 374     ;;
 375   *-*-darwin*)
 376     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 377     noconfigdirs="$noconfigdirs sim target-rda"
 378     noconfigdirs="$noconfigdirs ${libgcj}"
 379     ;;
 380   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 381     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 382     ;;
 383   *-*-freebsd*)
 384     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 385     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 386         && test -f /usr/local/include/gmp.h; then
 387       with_gmp=/usr/local
 388     fi
 389
 390     # Skip some stuff that's unsupported on some FreeBSD configurations.
 391     case "${target}" in
 392       i*86-*-*) ;;
 393       alpha*-*-*) ;;
 394       *)
 395         noconfigdirs="$noconfigdirs ${libgcj}"
 396         ;;
 397     esac
 398     ;;
 399   *-*-kaos*)
 400     # Remove unsupported stuff on all kaOS configurations.
 401     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 402     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 403     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 404     noconfigdirs="$noconfigdirs target-libgloss"
 405     ;;
 406   *-*-netbsd*)
 407     # Skip some stuff on all NetBSD configurations.
 408     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 409
 410     # Skip some stuff that's unsupported on some NetBSD configurations.
 411     case "${target}" in
 412       i*86-*-netbsdelf*) ;;
 413       arm*-*-netbsdelf*) ;;
 414       *)
 415         noconfigdirs="$noconfigdirs ${libgcj}"
 416         ;;
 417     esac
 418     ;;
 419   *-*-netware*)
 420     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 421     ;;
 422   *-*-rtems*)
 423     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 424     ;;
 425     # The tpf target doesn't support gdb yet.
 426   *-*-tpf*)
 427     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 428     ;;
 429   *-*-uclinux*)
 430     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 431     ;;
 432   *-*-vxworks*)
 433     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 434     ;;
 435   alpha*-dec-osf*)
 436     # ld works, but does not support shared libraries.
 437     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 438     # gas doesn't generate exception information.
 439     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 440     ;;
 441   alpha*-*-*vms*)
 442     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 443     ;;
 444   alpha*-*-linux*)
 445     # newlib is not 64 bit ready
 446     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 447     ;;
 448   alpha*-*-*)
 449     # newlib is not 64 bit ready
 450     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 451     ;;
 452   am33_2.0-*-linux*)
 453     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 454     ;;
 455   sh-*-linux*)
 456     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 457     ;;
 458   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 459     noconfigdirs="$noconfigdirs ${libgcj}"
 460     noconfigdirs="$noconfigdirs target-examples"
 461     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 462     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 463     noconfigdirs="$noconfigdirs expect dejagnu"
 464     # the C++ libraries don't build on top of CE's C libraries
 465     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 466     noconfigdirs="$noconfigdirs target-newlib"
 467     case "${host}" in
 468       *-*-cygwin*) ;; # keep gdb and readline
 469       *) noconfigdirs="$noconfigdirs gdb readline"
 470          ;;
 471     esac
 472     ;;
 473   arc-*-*)
 474     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 475     ;;
 476   arm-semi-aof )
 477     ;;
 478   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 479     noconfigdirs="$noconfigdirs ${libgcj}"
 480     ;;
 481   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 482     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 483     ;;
 484   arm*-*-linux-gnueabi)
 485     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 486     noconfigdirs="$noconfigdirs target-libjava target-libobjc"
 487     ;;
 488   arm*-*-symbianelf*)
 489     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 490     ;;
 491   arm-*-pe*)
 492     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 493     ;;
 494   thumb-*-coff)
 495     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 496     ;;
 497   thumb-*-elf)
 498     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 499     ;;
 500   thumb-*-pe)
 501     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 502     ;;
 503   arm-*-riscix*)
 504     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 505     ;;
 506   avr-*-*)
 507     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 508     ;;
 509   bfin-*-*)
 510     noconfigdirs="$noconfigdirs target-libgloss gdb"
 511     if test x${is_cross_compiler} != xno ; then
 512       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 513     fi
 514     ;;
 515   c4x-*-* | tic4x-*-*)
 516     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 517     ;;
 518   c54x*-*-* | tic54x-*-*)
 519     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 520     ;;
 521   cris-*-* | crisv32-*-*)
 522     unsupported_languages="$unsupported_languages java"
 523     case "${target}" in
 524       *-*-aout)
 525         unsupported_languages="$unsupported_languages fortran"
 526         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 527       *-*-elf)
 528         unsupported_languages="$unsupported_languages fortran"
 529         noconfigdirs="$noconfigdirs target-boehm-gc";;
 530       *-*-linux*)
 531         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 532       *)
 533         unsupported_languages="$unsupported_languages fortran"
 534         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 535     esac
 536     ;;
 537   crx-*-*)
 538     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 539     ;;
 540   d10v-*-*)
 541     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 542     ;;
 543   d30v-*-*)
 544     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 545     ;;
 546   fr30-*-elf*)
 547     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 548     ;;
 549   frv-*-*)
 550     noconfigdirs="$noconfigdirs ${libgcj}"
 551     ;;
 552   h8300*-*-*)
 553     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 554     ;;
 555   h8500-*-*)
 556     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 557     ;;
 558   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 559     ;;
 560   hppa*64*-*-linux* | parisc*64*-*-linux*)
 561     # In this case, it's because the hppa64-linux target is for
 562     # the kernel only at this point and has no libc, and thus no
 563     # headers, crt*.o, etc., all of which are needed by these.
 564     noconfigdirs="$noconfigdirs target-zlib"
 565     ;;
 566   parisc*-*-linux* | hppa*-*-linux*)
 567     ;;
 568   hppa*-*-*elf* | \
 569   hppa*-*-lites* | \
 570   hppa*-*-openbsd* | \
 571   hppa*64*-*-*)
 572     noconfigdirs="$noconfigdirs ${libgcj}"
 573     ;;
 574   hppa*-hp-hpux11*)
 575     noconfigdirs="$noconfigdirs ld shellutils"
 576     ;;
 577   hppa*-*-*)
 578     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 579     # build on HP-UX 10.20.
 580     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 581     ;;
 582   i960-*-*)
 583     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 584     ;;
 585   ia64*-*-elf*)
 586     # No gdb support yet.
 587     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 588     ;;
 589   ia64*-**-hpux*)
 590     # No gdb or ld support yet.
 591     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 592     ;;
 593   i370-*-opened*)
 594     ;;
 595   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 596     noconfigdirs="$noconfigdirs ${libgcj}"
 597     ;;
 598   i[[3456789]]86-*-linux*)
 599     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 600     # not build java stuff by default.
 601     case "${target}" in
 602       *-*-*libc1*)
 603         noconfigdirs="$noconfigdirs ${libgcj}";;
 604     esac
 605
 606     # This section makes it possible to build newlib natively on linux.
 607     # If we are using a cross compiler then don't configure newlib.
 608     if test x${is_cross_compiler} != xno ; then
 609       noconfigdirs="$noconfigdirs target-newlib"
 610     fi
 611     noconfigdirs="$noconfigdirs target-libgloss"
 612     # If we are not using a cross compiler, do configure newlib.
 613     # Note however, that newlib will only be configured in this situation
 614     # if the --with-newlib option has been given, because otherwise
 615     # 'target-newlib' will appear in skipdirs.
 616     ;;
 617   i[[3456789]]86-*-mingw32*)
 618     target_configdirs="$target_configdirs target-mingw"
 619     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 620
 621     # Can't build gdb for mingw32 if not native.
 622     case "${host}" in
 623       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 624       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 625          ;;
 626     esac
 627     ;;
 628   *-*-cygwin*)
 629     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 630     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 631     # always build newlib if winsup directory is present.
 632     if test -d "$srcdir/winsup"; then
 633       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 634     elif test -d "$srcdir/newlib"; then
 635       echo "Warning: winsup is missing so newlib can't be built."
 636     fi
 637
 638     # Can't build gdb for Cygwin if not native.
 639     case "${host}" in
 640       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 641       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 642          ;;
 643     esac
 644     ;;
 645   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 646   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 647     ;;
 648   i[[3456789]]86-*-pe)
 649     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 650     ;;
 651   i[[3456789]]86-*-sco3.2v5*)
 652     # The linker does not yet know about weak symbols in COFF,
 653     # and is not configured to handle mixed ELF and COFF.
 654     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 655     ;;
 656   i[[3456789]]86-*-sco*)
 657     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 658     ;;
 659   i[[3456789]]86-*-solaris2*)
 660     noconfigdirs="$noconfigdirs target-libgloss"
 661     ;;
 662   i[[3456789]]86-*-sysv4*)
 663     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 664     ;;
 665   i[[3456789]]86-*-beos*)
 666     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 667     ;;
 668   i[[3456789]]86-*-rdos*)
 669     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 670     ;;
 671   m32r-*-*)
 672     noconfigdirs="$noconfigdirs ${libgcj}"
 673     ;;
 674   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 675     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 676     ;;
 677   m68k-*-elf*)
 678     noconfigdirs="$noconfigdirs ${libgcj}"
 679     ;;
 680   m68k-*-coff*)
 681     noconfigdirs="$noconfigdirs ${libgcj}"
 682     ;;
 683   mcore-*-pe*)
 684   # The EPOC C++ environment does not support exceptions or rtti,
 685   # and so building libstdc++-v3 tends not to always work.
 686     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 687     ;;
 688   mmix-*-*)
 689     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 690     unsupported_languages="$unsupported_languages fortran java"
 691     ;;
 692   mn10200-*-*)
 693     noconfigdirs="$noconfigdirs ${libgcj}"
 694     ;;
 695   mn10300-*-*)
 696     noconfigdirs="$noconfigdirs ${libgcj}"
 697     ;;
 698   mt-*-*)
 699     noconfigdirs="$noconfigdirs sim"
 700     ;;
 701   powerpc-*-aix*)
 702     # copied from rs6000-*-* entry
 703     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 704     ;;
 705   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 706     target_configdirs="$target_configdirs target-winsup"
 707     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 708     # always build newlib.
 709     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 710     ;;
 711     # This is temporary until we can link against shared libraries
 712   powerpcle-*-solaris*)
 713     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 714     ;;
 715   powerpc-*-beos*)
 716     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 717     ;;
 718   powerpc-*-eabi)
 719     noconfigdirs="$noconfigdirs ${libgcj}"
 720     ;;
 721   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 722     ;;
 723   rs6000-*-lynxos*)
 724     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 725     ;;
 726   rs6000-*-aix*)
 727     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 728     ;;
 729   rs6000-*-*)
 730     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 731     ;;
 732   m68k-apollo-*)
 733     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 734     ;;
 735   mips*-*-irix5*)
 736     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 737     ;;
 738   mips*-*-irix6*)
 739     # Linking libjava exceeds command-line length limits on at least
 740     # IRIX 6.2, but not on IRIX 6.5.
 741     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 742     # <oldham@codesourcery.com>
 743     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 744     ;;
 745   mips*-dec-bsd*)
 746     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 747     ;;
 748   mips*-*-bsd*)
 749     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 750     ;;
 751   mipstx39-*-*)
 752     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 753     ;;
 754   mips64*-*-linux*)
 755     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 756     ;;
 757   mips*-*-linux*)
 758     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 759     ;;
 760   mips*-*-*)
 761     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 762     ;;
 763   romp-*-*)
 764     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 765     ;;
 766   sh-*-* | sh64-*-*)
 767     case "${host}" in
 768       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 769       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 770       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 771       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 772     esac
 773     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 774     ;;
 775   sparc-*-elf*)
 776     noconfigdirs="$noconfigdirs ${libgcj}"
 777     ;;
 778   sparc64-*-elf*)
 779     noconfigdirs="$noconfigdirs ${libgcj}"
 780     ;;
 781   sparclite-*-*)
 782     noconfigdirs="$noconfigdirs ${libgcj}"
 783     ;;
 784   sparc-*-sunos4*)
 785     noconfigdirs="$noconfigdirs ${libgcj}"
 786     if test x${is_cross_compiler} != xno ; then
 787            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 788     else
 789            use_gnu_ld=no
 790     fi
 791     ;;
 792   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 793     noconfigdirs="$noconfigdirs ${libgcj}"
 794     ;;
 795   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 796     ;;
 797   v810-*-*)
 798     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 799     ;;
 800   v850-*-*)
 801     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 802     ;;
 803   v850e-*-*)
 804     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 805     ;;
 806   v850ea-*-*)
 807     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 808     ;;
 809   vax-*-vms)
 810     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 811     ;;
 812   vax-*-*)
 813     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 814     ;;
 815   xtensa-*-*)
 816     noconfigdirs="$noconfigdirs ${libgcj}"
 817     ;;
 818   ip2k-*-*)
 819     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 820     ;;
 821   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 822     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 823     ;;
 824   *-*-lynxos*)
 825     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 826     ;;
 827   *-*-*)
 828     noconfigdirs="$noconfigdirs ${libgcj}"
 829     ;;
 830 esac
 831
 832 # If we aren't building newlib, then don't build libgloss, since libgloss
 833 # depends upon some newlib header files.
 834 case "${noconfigdirs}" in
 835   *target-libgloss*) ;;
 836   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 837 esac
 838
 839 # Work in distributions that contain no compiler tools, like Autoconf.
 840 tentative_cc=""
 841 host_makefile_frag=/dev/null
 842 if test -d ${srcdir}/config ; then
 843 case "${host}" in
 844   m68k-hp-hpux*)
 845     # Avoid "too much defining" errors from HPUX compiler.
 846     tentative_cc="cc -Wp,-H256000"
 847     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 848     # If it's HP/UX ar, this should be harmless.
 849     RANLIB="ar ts"
 850     ;;
 851   m68k-apollo-sysv*)
 852     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 853     ;;
 854   m68k-apollo-bsd*)
 855     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 856     # chokes on bfd, the compiler won't let you assign integers to enums, and
 857     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 858     # the apollo compiler" (the preferred version of GCC could be called cc,
 859     # or whatever), but I'm not sure leaving CC as cc is any better...
 860     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 861     # Used to have BISON=yacc.
 862     tentative_cc=gcc
 863     ;;
 864   m88k-dg-dgux*)
 865     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 866     ;;
 867   m88k-harris-cxux*)
 868     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 869     tentative_cc="cc -Xa"
 870     host_makefile_frag="config/mh-cxux"
 871     ;;
 872   m88k-motorola-sysv*)
 873     ;;
 874   mips*-dec-ultrix*)
 875     tentative_cc="cc -Wf,-XNg1000"
 876     host_makefile_frag="config/mh-decstation"
 877     ;;
 878   mips*-nec-sysv4*)
 879     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 880     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 881     host_makefile_frag="config/mh-necv4"
 882     ;;
 883   mips*-sgi-irix4*)
 884     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 885     # environment.  Also bump switch table size so that cp-parse will
 886     # compile.  Bump string length limit so linker builds.
 887     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 888     ;;
 889   mips*-*-sysv4*)
 890     host_makefile_frag="config/mh-sysv4"
 891     ;;
 892   mips*-*-sysv*)
 893     # This is for a MIPS running RISC/os 4.52C.
 894
 895     # This is needed for GDB, but needs to be in the top-level make because
 896     # if a library is compiled with the bsd headers and gets linked with the
 897     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 898     # a different size).
 899     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 900     # known except to select the sysv environment.  Could we use /proc instead?
 901     # These "sysv environments" and "bsd environments" often end up being a pain.
 902     #
 903     # This is not part of CFLAGS because perhaps not all C compilers have this
 904     # option.
 905     tentative_cc="cc -systype sysv"
 906     ;;
 907   i370-ibm-opened*)
 908     tentative_cc="c89"
 909     ;;
 910   i[[3456789]]86-*-sysv5*)
 911     host_makefile_frag="config/mh-sysv5"
 912     ;;
 913   i[[3456789]]86-*-dgux*)
 914     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 915     host_makefile_frag="config/mh-dgux386"
 916     ;;
 917   i[[3456789]]86-ncr-sysv4.3*)
 918     # The MetaWare compiler will generate a copyright message unless you
 919     # turn it off by adding the -Hnocopyr flag.
 920     tentative_cc="cc -Hnocopyr"
 921     ;;
 922   i[[3456789]]86-ncr-sysv4*)
 923     # for an NCR 3000 (i486/SVR4) system.
 924     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 925     # This compiler not only emits obnoxious copyright messages every time
 926     # you run it, but it chokes and dies on a whole bunch of GNU source
 927     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 928     tentative_cc="/usr/ccs/ATT/cc"
 929     host_makefile_frag="config/mh-ncr3000"
 930     ;;
 931   i[[3456789]]86-*-sco3.2v5*)
 932     ;;
 933   i[[3456789]]86-*-sco*)
 934     # The native C compiler botches some simple uses of const.  Unfortunately,
 935     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 936     tentative_cc="cc -Dconst="
 937     host_makefile_frag="config/mh-sco"
 938     ;;
 939   i[[3456789]]86-*-udk*)
 940     host_makefile_frag="config/mh-sysv5"
 941     ;;
 942   i[[3456789]]86-*-solaris2*)
 943     host_makefile_frag="config/mh-sysv4"
 944     ;;
 945   i[[3456789]]86-*-msdosdjgpp*)
 946     host_makefile_frag="config/mh-djgpp"
 947     ;;
 948   *-cygwin*)
 949     host_makefile_frag="config/mh-cygwin"
 950     ;;
 951   *-mingw32*)
 952     ;;
 953   *-interix*)
 954     host_makefile_frag="config/mh-interix"
 955     ;;
 956   vax-*-ultrix2*)
 957     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 958     tentative_cc=gcc
 959     ;;
 960   *-*-solaris2*)
 961     host_makefile_frag="config/mh-solaris"
 962     ;;
 963   m68k-sun-sunos*)
 964     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 965     # without overflowing the jump tables (-J says to use a 32 bit table)
 966     tentative_cc="cc -J"
 967     ;;
 968   *-hp-hpux*)
 969     tentative_cc="cc -Wp,-H256000"
 970     ;;
 971   *-*-hiux*)
 972     tentative_cc="cc -Wp,-H256000"
 973     ;;
 974   rs6000-*-lynxos*)
 975     # /bin/cc is less than useful for our purposes.  Always use GCC
 976     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 977     host_makefile_frag="config/mh-lynxrs6k"
 978     ;;
 979   powerpc-*-darwin*)
 980     host_makefile_frag="config/mh-ppc-darwin"
 981     ;;
 982   powerpc-*-aix*)
 983     host_makefile_frag="config/mh-ppc-aix"
 984     ;;
 985   rs6000-*-aix*)
 986     host_makefile_frag="config/mh-ppc-aix"
 987     ;;
 988   *-*-lynxos*)
 989     # /bin/cc is less than useful for our purposes.  Always use GCC
 990     tentative_cc="/bin/gcc"
 991     ;;
 992   *-*-sysv4*)
 993     host_makefile_frag="config/mh-sysv4"
 994     ;;
 995   # This is placed last to prevent interfering with the cases above.
 996   i[[3456789]]86-*-*)
 997     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 998     host_makefile_frag="config/mh-x86omitfp"
 999     ;;
1000 esac
1001 fi
1002
1003 # If we aren't going to be using gcc, see if we can extract a definition
1004 # of CC from the fragment.
1005 # Actually, use the 'pre-extracted' version above.
1006 if test -z "${CC}" && test "${build}" = "${host}" ; then
1007   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1008   found=
1009   for dir in $PATH; do
1010     test -z "$dir" && dir=.
1011     if test -f $dir/gcc; then
1012       found=yes
1013       break
1014     fi
1015   done
1016   IFS="$save_ifs"
1017   if test -z "${found}" && test -n "${tentative_cc}" ; then
1018     CC=$tentative_cc
1019   fi
1020 fi
1021
1022 if test "${build}" != "${host}" ; then
1023   # If we are doing a Canadian Cross, in which the host and build systems
1024   # are not the same, we set reasonable default values for the tools.
1025
1026   CC=${CC-${host_alias}-gcc}
1027   CFLAGS=${CFLAGS-"-g -O2"}
1028   CXX=${CXX-${host_alias}-c++}
1029   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1030   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1031
1032 else
1033   # Set reasonable default values for some tools even if not Canadian.
1034   # Of course, these are different reasonable default values, originally
1035   # specified directly in the Makefile.
1036   # We don't export, so that autoconf can do its job.
1037   # Note that all these settings are above the fragment inclusion point
1038   # in Makefile.in, so can still be overridden by fragments.
1039   # This is all going to change when we autoconfiscate...
1040
1041   CC_FOR_BUILD="\$(CC)"
1042   AC_PROG_CC
1043
1044   # We must set the default linker to the linker used by gcc for the correct
1045   # operation of libtool.  If LD is not defined and we are using gcc, try to
1046   # set the LD default to the ld used by gcc.
1047   if test -z "$LD"; then
1048     if test "$GCC" = yes; then
1049       case $build in
1050       *-*-mingw*)
1051         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1052       *)
1053         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1054       esac
1055       case $gcc_prog_ld in
1056       # Accept absolute paths.
1057       [[\\/]* | [A-Za-z]:[\\/]*)]
1058         LD="$gcc_prog_ld" ;;
1059       esac
1060     fi
1061   fi
1062
1063   CXX=${CXX-"c++"}
1064   CFLAGS=${CFLAGS-"-g"}
1065   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1066 fi
1067
1068 ACX_PROG_GNAT
1069 ACX_PROG_CMP_IGNORE_INITIAL
1070
1071 # Check for html and install-html
1072 AC_ARG_WITH(datarootdir,
1073 [  --with-datarootdir   Use datarootdir as the data root directory.],
1074 [datarootdir="\${prefix}/${withval}"],
1075 [datarootdir="\${prefix}/share"])
1076
1077 AC_ARG_WITH(docdir,
1078 [  --with-docdir        Install documentation in this directory.],
1079 [docdir="\${prefix}/${withval}"],
1080 [docdir="\${datarootdir}/doc"])
1081
1082 AC_ARG_WITH(htmldir,
1083 [  --with-htmldir       Install html in this directory.],
1084 [htmldir="\${prefix}/${withval}"],
1085 [htmldir="\${docdir}"])
1086
1087 AC_SUBST(datarootdir)
1088 AC_SUBST(docdir)
1089 AC_SUBST(htmldir)
1090
1091 # Check for GMP and MPFR
1092 gmplibs=
1093 gmpinc=
1094 have_gmp=yes
1095 # Specify a location for mpfr
1096 # check for this first so it ends up on the link line before gmp.
1097 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1098
1099 if test "x$with_mpfr_dir" != x; then
1100   gmpinc="-I$with_mpfr_dir"
1101   gmplibs="$with_mpfr_dir/libmpfr.a"
1102 else
1103   gmplibs="-lmpfr"
1104 fi
1105
1106 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1107
1108 if test "x$with_mpfr" != x; then
1109   gmplibs="-L$with_mpfr/lib $gmplibs"
1110   gmpinc="-I$with_mpfr/include"
1111 fi
1112
1113 # Specify a location for gmp
1114 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1115
1116 if test "x$with_gmp_dir" != x; then
1117   gmpinc="$gmpinc -I$with_gmp_dir"
1118   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1119     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1120   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1121     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1122   fi
1123   # One of the later tests will catch the error if neither library is present.
1124 else
1125   gmplibs="$gmplibs -lgmp"
1126 fi
1127
1128 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1129
1130 if test "x$with_gmp" != x; then
1131   gmplibs="-L$with_gmp/lib $gmplibs"
1132   gmpinc="-I$with_gmp/include $gmpinc"
1133 fi
1134
1135 saved_CFLAGS="$CFLAGS"
1136 CFLAGS="$CFLAGS $gmpinc"
1137 # Check GMP actually works
1138 AC_MSG_CHECKING([for correct version of gmp.h])
1139 AC_TRY_COMPILE([#include "gmp.h"],[
1140 #if __GNU_MP_VERSION < 3
1141 choke me
1142 #endif
1143 ], [AC_MSG_RESULT([yes])],
1144   [AC_MSG_RESULT([no]); have_gmp=no])
1145
1146 if test x"$have_gmp" = xyes; then
1147   AC_MSG_CHECKING([for MPFR])
1148
1149   saved_LIBS="$LIBS"
1150   LIBS="$LIBS $gmplibs"
1151   AC_TRY_LINK([#include <gmp.h>
1152 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1153     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1154   LIBS="$saved_LIBS"
1155 fi
1156 CFLAGS="$saved_CFLAGS"
1157
1158 # Flags needed for both GMP and/or MPFR
1159 AC_SUBST(gmplibs)
1160 AC_SUBST(gmpinc)
1161
1162 # By default, C is the only stage 1 language.
1163 stage1_languages=c
1164 AC_SUBST(stage1_languages)
1165
1166 # Figure out what language subdirectories are present.
1167 # Look if the user specified --enable-languages="..."; if not, use
1168 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1169 # go away some day.
1170 # NB:  embedded tabs in this IF block -- do not untabify
1171 if test -d ${srcdir}/gcc; then
1172   if test x"${enable_languages+set}" != xset; then
1173     if test x"${LANGUAGES+set}" = xset; then
1174       enable_languages="${LANGUAGES}"
1175         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1176     else
1177       enable_languages=all
1178     fi
1179   else
1180     if test x"${enable_languages}" = x ||
1181        test x"${enable_languages}" = xyes;
1182        then
1183       echo configure.in: --enable-languages needs at least one language argument 1>&2
1184       exit 1
1185     fi
1186   fi
1187   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1188
1189   # 'f95' is the old name for the 'fortran' language. We issue a warning
1190   # and make the substitution.
1191   case ,${enable_languages}, in
1192     *,f95,*)
1193       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1194       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1195       ;;
1196   esac
1197
1198   # First scan to see if an enabled language requires some other language.
1199   # We assume that a given config-lang.in will list all the language
1200   # front ends it requires, even if some are required indirectly.
1201   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1202     case ${lang_frag} in
1203       ..) ;;
1204       # The odd quoting in the next line works around
1205       # an apparent bug in bash 1.12 on linux.
1206       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1207       *)
1208         # From the config-lang.in, get $language, $lang_requires
1209         language=
1210         lang_requires=
1211         . ${lang_frag}
1212         for other in ${lang_requires} ; do
1213           case ,${enable_languages}, in
1214             *,$other,*) ;;
1215             *,all,*) ;;
1216             *,$language,*)
1217               echo " \`$other' language required by \`$language'; enabling" 1>&2
1218               enable_languages="${enable_languages},${other}"
1219               ;;
1220           esac
1221         done
1222         ;;
1223     esac
1224   done
1225
1226   new_enable_languages=c
1227   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1228   potential_languages=c
1229
1230   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1231     case ${lang_frag} in
1232       ..) ;;
1233       # The odd quoting in the next line works around
1234       # an apparent bug in bash 1.12 on linux.
1235       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1236       *)
1237         # From the config-lang.in, get $language, $target_libs,
1238         # $lang_dirs, $boot_language, and $build_by_default
1239         language=
1240         target_libs=
1241         lang_dirs=
1242         boot_language=
1243         build_by_default=
1244         need_gmp=
1245         . ${lang_frag}
1246         potential_languages="${potential_languages},${language}"
1247         # This is quite sensitive to the ordering of the case statement arms.
1248         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1249           *::*:*)
1250             echo "${lang_frag} doesn't set \$language." 1>&2
1251             exit 1
1252             ;;
1253           *:ada:no:*)
1254             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1255             add_this_lang=no
1256             ;;
1257           *,${language},*:*:*:*)
1258             # Language was explicitly selected; include it.
1259             add_this_lang=yes
1260             ;;
1261           *,all,*:*:*:no)
1262             # 'all' was selected, but this is not a default language
1263             # so do not include it.
1264             add_this_lang=no
1265             ;;
1266           *,all,*:*:*:*)
1267             # 'all' was selected and this is a default language; include it.
1268             add_this_lang=yes
1269             ;;
1270           *)
1271             add_this_lang=no
1272             ;;
1273         esac
1274
1275         # Disable languages that need GMP if it isn't available.
1276         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1277           *,${language},*:no:yes)
1278             # Specifically requested language; tell them.
1279             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1280             ;;
1281           *:no:yes)
1282             # Silently disable.
1283             add_this_lang=no
1284             ;;
1285         esac
1286
1287         # Disable a language that is unsupported by the target.
1288         case " $unsupported_languages " in
1289           *" $language "*)
1290             add_this_lang=no
1291             ;;
1292         esac
1293
1294         case $add_this_lang in
1295           no)
1296             # Remove language-dependent dirs.
1297             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1298             ;;
1299           *)
1300             new_enable_languages="$new_enable_languages,$language"
1301             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1302             case ${boot_language} in
1303               yes)
1304                 # Add to (comma-separated) list of stage 1 languages.
1305                 stage1_languages="${stage1_languages},${language}"
1306                 ;;
1307             esac
1308             ;;
1309         esac
1310         ;;
1311     esac
1312   done
1313
1314   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1315   if test "x$missing_languages" != x; then
1316     AC_MSG_ERROR([
1317 The following requested languages could not be built: ${missing_languages}
1318 Recognised languages are: ${potential_languages}])
1319   fi
1320
1321   if test "x$new_enable_languages" != "x$enable_languages"; then
1322     echo The following languages will be built: ${new_enable_languages}
1323   fi
1324   enable_languages="$new_enable_languages"
1325   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1326 fi
1327
1328 # Handle --disable-<component> generically.
1329 for dir in $configdirs $build_configdirs $target_configdirs ; do
1330   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1331   if eval test x\${enable_${dirname}} "=" xno ; then
1332     noconfigdirs="$noconfigdirs $dir"
1333   fi
1334 done
1335
1336 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1337 # $build_configdirs and $target_configdirs.
1338 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1339
1340 notsupp=""
1341 for dir in . $skipdirs $noconfigdirs ; do
1342   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1343   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1344     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1345     if test -r $srcdir/$dirname/configure ; then
1346       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1347         true
1348       else
1349         notsupp="$notsupp $dir"
1350       fi
1351     fi
1352   fi
1353   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1354     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1355     if test -r $srcdir/$dirname/configure ; then
1356       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1357         true
1358       else
1359         notsupp="$notsupp $dir"
1360       fi
1361     fi
1362   fi
1363   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1364     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1365     if test -r $srcdir/$dirname/configure ; then
1366       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1367         true
1368       else
1369         notsupp="$notsupp $dir"
1370       fi
1371     fi
1372   fi
1373 done
1374
1375 # Sometimes the tools are distributed with libiberty but with no other
1376 # libraries.  In that case, we don't want to build target-libiberty.
1377 if test -n "${target_configdirs}" ; then
1378   others=
1379   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1380     if test "$i" != "libiberty" ; then
1381       if test -r $srcdir/$i/configure ; then
1382         others=yes;
1383         break;
1384       fi
1385     fi
1386   done
1387   if test -z "${others}" ; then
1388     target_configdirs=
1389   fi
1390 fi
1391
1392 # Quietly strip out all directories which aren't configurable in this tree.
1393 # This relies on all configurable subdirectories being autoconfiscated, which
1394 # is now the case.
1395 build_configdirs_all="$build_configdirs"
1396 build_configdirs=
1397 for i in ${build_configdirs_all} ; do
1398   j=`echo $i | sed -e s/build-//g`
1399   if test -f ${srcdir}/$j/configure ; then
1400     build_configdirs="${build_configdirs} $i"
1401   fi
1402 done
1403
1404 configdirs_all="$configdirs"
1405 configdirs=
1406 for i in ${configdirs_all} ; do
1407   if test -f ${srcdir}/$i/configure ; then
1408     configdirs="${configdirs} $i"
1409   fi
1410 done
1411
1412 target_configdirs_all="$target_configdirs"
1413 target_configdirs=
1414 for i in ${target_configdirs_all} ; do
1415   j=`echo $i | sed -e s/target-//g`
1416   if test -f ${srcdir}/$j/configure ; then
1417     target_configdirs="${target_configdirs} $i"
1418   fi
1419 done
1420
1421 # Produce a warning message for the subdirs we can't configure.
1422 # This isn't especially interesting in the Cygnus tree, but in the individual
1423 # FSF releases, it's important to let people know when their machine isn't
1424 # supported by the one or two programs in a package.
1425
1426 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1427   # If $appdirs is non-empty, at least one of those directories must still
1428   # be configured, or we error out.  (E.g., if the gas release supports a
1429   # specified target in some subdirs but not the gas subdir, we shouldn't
1430   # pretend that all is well.)
1431   if test -n "$appdirs" ; then
1432     for dir in $appdirs ; do
1433       if test -r $dir/Makefile.in ; then
1434         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1435           appdirs=""
1436           break
1437         fi
1438         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1439           appdirs=""
1440           break
1441         fi
1442       fi
1443     done
1444     if test -n "$appdirs" ; then
1445       echo "*** This configuration is not supported by this package." 1>&2
1446       exit 1
1447     fi
1448   fi
1449   # Okay, some application will build, or we don't care to check.  Still
1450   # notify of subdirs not getting built.
1451   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1452   echo "    ${notsupp}" 1>&2
1453   echo "    (Any other directories should still work fine.)" 1>&2
1454 fi
1455
1456 case "$host" in
1457   *msdosdjgpp*)
1458     enable_gdbtk=no ;;
1459 esac
1460
1461 copy_dirs=
1462
1463 AC_ARG_WITH([build-sysroot],
1464   [  --with-build-sysroot=sysroot
1465                           use sysroot as the system root during the build],
1466   [if test x"$withval" != x ; then
1467      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1468    fi],
1469   [SYSROOT_CFLAGS_FOR_TARGET=])
1470 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1471
1472 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1473 # the named directory are copied to $(tooldir)/sys-include.
1474 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1475   if test x${is_cross_compiler} = xno ; then
1476     echo 1>&2 '***' --with-headers is only supported when cross compiling
1477     exit 1
1478   fi
1479   if test x"${with_headers}" != xyes ; then
1480     case "${exec_prefixoption}" in
1481     "") x=${prefix} ;;
1482     *) x=${exec_prefix} ;;
1483     esac
1484     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1485   fi
1486 fi
1487
1488 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1489 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1490 # are permitted.
1491 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1492   if test x${is_cross_compiler} = xno ; then
1493     echo 1>&2 '***' --with-libs is only supported when cross compiling
1494     exit 1
1495   fi
1496   if test x"${with_libs}" != xyes ; then
1497     # Copy the libraries in reverse order, so that files in the first named
1498     # library override files in subsequent libraries.
1499     case "${exec_prefixoption}" in
1500     "") x=${prefix} ;;
1501     *) x=${exec_prefix} ;;
1502     esac
1503     for l in ${with_libs}; do
1504       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1505     done
1506   fi
1507 fi
1508
1509 # Set with_gnu_as and with_gnu_ld as appropriate.
1510 #
1511 # This is done by determining whether or not the appropriate directory
1512 # is available, and by checking whether or not specific configurations
1513 # have requested that this magic not happen.
1514 #
1515 # The command line options always override the explicit settings in
1516 # configure.in, and the settings in configure.in override this magic.
1517 #
1518 # If the default for a toolchain is to use GNU as and ld, and you don't
1519 # want to do that, then you should use the --without-gnu-as and
1520 # --without-gnu-ld options for the configure script.
1521
1522 if test x${use_gnu_as} = x &&
1523    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1524   with_gnu_as=yes
1525   extra_host_args="$extra_host_args --with-gnu-as"
1526 fi
1527
1528 if test x${use_gnu_ld} = x &&
1529    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1530   with_gnu_ld=yes
1531   extra_host_args="$extra_host_args --with-gnu-ld"
1532 fi
1533
1534 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1535 # can detect this case.
1536
1537 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1538   with_newlib=yes
1539   extra_host_args="$extra_host_args --with-newlib"
1540 fi
1541
1542 # Handle ${copy_dirs}
1543 set fnord ${copy_dirs}
1544 shift
1545 while test $# != 0 ; do
1546   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1547     :
1548   else
1549     echo Copying $1 to $2
1550
1551     # Use the install script to create the directory and all required
1552     # parent directories.
1553     if test -d $2 ; then
1554       :
1555     else
1556       echo >config.temp
1557       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1558     fi
1559
1560     # Copy the directory, assuming we have tar.
1561     # FIXME: Should we use B in the second tar?  Not all systems support it.
1562     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1563
1564     # It is the responsibility of the user to correctly adjust all
1565     # symlinks.  If somebody can figure out how to handle them correctly
1566     # here, feel free to add the code.
1567
1568     echo $1 > $2/COPIED
1569   fi
1570   shift; shift
1571 done
1572
1573 # Determine a target-dependent exec_prefix that the installed
1574 # gcc will search in.  Keep this list sorted by triplet, with
1575 # the *-*-osname triplets last.
1576 md_exec_prefix=
1577 case "${target}" in
1578   alpha*-*-*vms*)
1579     md_exec_prefix=/gnu/lib/gcc-lib
1580     ;;
1581   i[34567]86-pc-msdosdjgpp*)
1582     md_exec_prefix=/dev/env/DJDIR/bin
1583     ;;
1584   i[34567]86-*-sco3.2v5*)
1585     if test $with_gnu_as = yes; then
1586       md_exec_prefix=/usr/gnu/bin
1587     else
1588       md_exec_prefix=/usr/ccs/bin/elf
1589     fi
1590     ;;
1591
1592   mn10300-*-* | \
1593   powerpc-*-chorusos* | \
1594   powerpc*-*-eabi* | \
1595   powerpc*-*-sysv* | \
1596   powerpc*-*-kaos* | \
1597   s390x-ibm-tpf*)
1598     md_exec_prefix=/usr/ccs/bin
1599     ;;
1600   sparc64-*-elf*)
1601     ;;
1602   v850*-*-*)
1603     md_exec_prefix=/usr/ccs/bin
1604     ;;
1605   xtensa-*-elf*)
1606     ;;
1607
1608   *-*-beos* | \
1609   *-*-elf* | \
1610   *-*-hpux* | \
1611   *-*-netware* | \
1612   *-*-nto-qnx* | \
1613   *-*-rtems* | \
1614   *-*-solaris2* | \
1615   *-*-sysv[45]* | \
1616   *-*-vxworks* | \
1617   *-wrs-windiss)
1618     md_exec_prefix=/usr/ccs/bin
1619     ;;
1620 esac
1621
1622 extra_arflags_for_target=
1623 extra_nmflags_for_target=
1624 extra_ranlibflags_for_target=
1625 target_makefile_frag=/dev/null
1626 case "${target}" in
1627   *-*-netware*)
1628     target_makefile_frag="config/mt-netware"
1629     ;;
1630   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1631     target_makefile_frag="config/mt-gnu"
1632     ;;
1633   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1634     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1635     # commands to handle both 32-bit and 64-bit objects.  These flags are
1636     # harmless if we're using GNU nm or ar.
1637     extra_arflags_for_target=" -X32_64"
1638     extra_nmflags_for_target=" -B -X32_64"
1639     ;;
1640   *-*-darwin*)
1641     # ranlib from Darwin requires the -c flag to look at common symbols.
1642     extra_ranlibflags_for_target=" -c"
1643     ;;
1644   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1645     target_makefile_frag="config/mt-wince"
1646     ;;
1647 esac
1648
1649 alphaieee_frag=/dev/null
1650 case $target in
1651   alpha*-*-*)
1652     # This just makes sure to use the -mieee option to build target libs.
1653     # This should probably be set individually by each library.
1654     alphaieee_frag="config/mt-alphaieee"
1655     ;;
1656 esac
1657
1658 # If --enable-target-optspace always use -Os instead of -O2 to build
1659 # the target libraries, similarly if it is not specified, use -Os
1660 # on selected platforms.
1661 ospace_frag=/dev/null
1662 case "${enable_target_optspace}:${target}" in
1663   yes:*)
1664     ospace_frag="config/mt-ospace"
1665     ;;
1666   :d30v-*)
1667     ospace_frag="config/mt-d30v"
1668     ;;
1669   :m32r-* | :d10v-* | :fr30-*)
1670     ospace_frag="config/mt-ospace"
1671     ;;
1672   no:* | :*)
1673     ;;
1674   *)
1675     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1676     ;;
1677 esac
1678
1679 # Default to using --with-stabs for certain targets.
1680 if test x${with_stabs} = x ; then
1681   case "${target}" in
1682   mips*-*-irix[[56]]*)
1683     ;;
1684   mips*-*-* | alpha*-*-osf*)
1685     with_stabs=yes;
1686     extra_host_args="${extra_host_args} --with-stabs"
1687     ;;
1688   esac
1689 fi
1690
1691 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1692 # them automatically.
1693 case "${host}" in
1694   hppa*64*-*-hpux11*)
1695     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1696     ;;
1697 esac
1698
1699 # Some systems (e.g., one of the i386-aix systems the gas testers are
1700 # using) don't handle "\$" correctly, so don't use it here.
1701 tooldir='${exec_prefix}'/${target_alias}
1702 build_tooldir=${tooldir}
1703
1704 # Create a .gdbinit file which runs the one in srcdir
1705 # and tells GDB to look there for source files.
1706
1707 if test -r ${srcdir}/.gdbinit ; then
1708   case ${srcdir} in
1709     .) ;;
1710     *) cat > ./.gdbinit <<EOF
1711 # ${NO_EDIT}
1712 dir ${srcdir}
1713 dir .
1714 source ${srcdir}/.gdbinit
1715 EOF
1716     ;;
1717   esac
1718 fi
1719
1720 # Make sure that the compiler is able to generate an executable.  If it
1721 # can't, we are probably in trouble.  We don't care whether we can run the
1722 # executable--we might be using a cross compiler--we only care whether it
1723 # can be created.  At this point the main configure script has set CC.
1724 we_are_ok=no
1725 echo "int main () { return 0; }" > conftest.c
1726 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1727 if test $? = 0 ; then
1728   if test -s conftest || test -s conftest.exe ; then
1729     we_are_ok=yes
1730   fi
1731 fi
1732 case $we_are_ok in
1733   no)
1734     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1735     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1736     rm -f conftest*
1737     exit 1
1738     ;;
1739 esac
1740 rm -f conftest*
1741
1742 # The Solaris /usr/ucb/cc compiler does not appear to work.
1743 case "${host}" in
1744   sparc-sun-solaris2*)
1745       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1746       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1747           could_use=
1748           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1749           if test -d /opt/cygnus/bin ; then
1750               if test "$could_use" = "" ; then
1751                   could_use="/opt/cygnus/bin"
1752               else
1753                   could_use="$could_use or /opt/cygnus/bin"
1754               fi
1755           fi
1756         if test "$could_use" = "" ; then
1757             echo "Warning: compilation may fail because you're using"
1758             echo "/usr/ucb/cc.  You should change your PATH or CC "
1759             echo "variable and rerun configure."
1760         else
1761             echo "Warning: compilation may fail because you're using"
1762             echo "/usr/ucb/cc, when you should use the C compiler from"
1763             echo "$could_use.  You should change your"
1764             echo "PATH or CC variable and rerun configure."
1765         fi
1766       fi
1767   ;;
1768 esac
1769
1770 case "${host}" in
1771   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1772   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1773   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1774 esac
1775
1776 # Record target_configdirs and the configure arguments for target and
1777 # build configuration in Makefile.
1778 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1779 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1780
1781 # Determine whether gdb needs tk/tcl or not.
1782 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1783 # and in that case we want gdb to be built without tk.  Ugh!
1784 # In fact I believe gdb is the *only* package directly dependent on tk,
1785 # so we should be able to put the 'maybe's in unconditionally and
1786 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1787 # 100% sure that that's safe though.
1788
1789 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1790 case "$enable_gdbtk" in
1791   no)
1792     GDB_TK="" ;;
1793   yes)
1794     GDB_TK="${gdb_tk}" ;;
1795   *)
1796     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1797     # distro.  Eventually someone will fix this and move Insight, nee
1798     # gdbtk to a separate directory.
1799     if test -d ${srcdir}/gdb/gdbtk ; then
1800       GDB_TK="${gdb_tk}"
1801     else
1802       GDB_TK=""
1803     fi
1804     ;;
1805 esac
1806 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1807 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1808
1809 # Strip out unwanted targets.
1810
1811 # While at that, we remove Makefiles if we were started for recursive
1812 # configuration, so that the top-level Makefile reconfigures them,
1813 # like we used to do when configure itself was recursive.
1814
1815 # Loop over modules.  $extrasub must be used with care, limiting as
1816 # much as possible the usage of range addresses.  That's because autoconf
1817 # splits the sed script to overcome limits in the number of commands,
1818 # and relying on carefully-timed sed passes may turn out to be very hard
1819 # to maintain later.  In this particular case, you just have to be careful
1820 # not to nest @if/@endif pairs, because configure will not warn you at all.
1821
1822 AC_ARG_ENABLE([bootstrap],
1823 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1824 enable_bootstrap=default)
1825
1826 # Issue errors and warnings for invalid/strange bootstrap combinations.
1827 case "$configdirs" in
1828   *gcc*) have_compiler=yes ;;
1829   *) have_compiler=no ;;
1830 esac
1831
1832 case "$have_compiler:$host:$target:$enable_bootstrap" in
1833   *:*:*:no) ;;
1834
1835   # Default behavior.  Enable bootstrap if we have a compiler
1836   # and we are in a native configuration.
1837   yes:$build:$build:default)
1838     enable_bootstrap=yes ;;
1839
1840   *:*:*:default)
1841     enable_bootstrap=no ;;
1842
1843   # We have a compiler and we are in a native configuration, bootstrap is ok
1844   yes:$build:$build:yes)
1845     ;;
1846
1847   # Other configurations, but we have a compiler.  Assume the user knows
1848   # what he's doing.
1849   yes:*:*:yes)
1850     AC_MSG_WARN([trying to bootstrap a cross compiler])
1851     ;;
1852
1853   # No compiler: if they passed --enable-bootstrap explicitly, fail
1854   no:*:*:yes)
1855     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1856
1857   # Fail if wrong command line
1858   *)
1859     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1860     ;;
1861 esac
1862
1863 # Adjust the toplevel makefile according to whether bootstrap was selected.
1864 case "$enable_bootstrap" in
1865   yes)
1866     bootstrap_suffix=bootstrap ;;
1867   no)
1868     bootstrap_suffix=no-bootstrap ;;
1869 esac
1870
1871 for module in ${build_configdirs} ; do
1872   if test -z "${no_recursion}" \
1873      && test -f ${build_subdir}/${module}/Makefile; then
1874     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1875     rm -f ${build_subdir}/${module}/Makefile
1876   fi
1877   extrasub="$extrasub
1878 /^@if build-$module\$/d
1879 /^@endif build-$module\$/d
1880 /^@if build-$module-$bootstrap_suffix\$/d
1881 /^@endif build-$module-$bootstrap_suffix\$/d"
1882 done
1883 for module in ${configdirs} ; do
1884   if test -z "${no_recursion}"; then
1885     for file in stage*-${module}/Makefile ${module}/Makefile; do
1886       if test -f ${file}; then
1887         echo 1>&2 "*** removing ${file} to force reconfigure"
1888         rm -f ${file}
1889       fi
1890     done
1891   fi
1892   extrasub="$extrasub
1893 /^@if $module\$/d
1894 /^@endif $module\$/d
1895 /^@if $module-$bootstrap_suffix\$/d
1896 /^@endif $module-$bootstrap_suffix\$/d"
1897 done
1898 for module in ${target_configdirs} ; do
1899   if test -z "${no_recursion}" \
1900      && test -f ${target_subdir}/${module}/Makefile; then
1901     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1902     rm -f ${target_subdir}/${module}/Makefile
1903   fi
1904   extrasub="$extrasub
1905 /^@if target-$module\$/d
1906 /^@endif target-$module\$/d
1907 /^@if target-$module-$bootstrap_suffix\$/d
1908 /^@endif target-$module-$bootstrap_suffix\$/d"
1909 done
1910
1911 extrasub="$extrasub
1912 /^@if /,/^@endif /d"
1913
1914 # Create the serialization dependencies.  This uses a temporary file.
1915
1916 AC_ARG_ENABLE([serial-configure],
1917 [  --enable-serial-[{host,target,build}-]configure
1918                           Force sequential configuration of
1919                           sub-packages for the host, target or build
1920                           machine, or all sub-packages])
1921
1922 case ${enable_serial_configure} in
1923   yes)
1924     enable_serial_build_configure=yes
1925     enable_serial_host_configure=yes
1926     enable_serial_target_configure=yes
1927     ;;
1928 esac
1929
1930 # These force 'configure's to be done one at a time, to avoid problems
1931 # with contention over a shared config.cache.
1932 rm -f serdep.tmp
1933 echo '# serdep.tmp' > serdep.tmp
1934 olditem=
1935 test "x${enable_serial_build_configure}" = xyes &&
1936 for item in ${build_configdirs} ; do
1937   case ${olditem} in
1938     "") ;;
1939     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1940   esac
1941   olditem=${item}
1942 done
1943 olditem=
1944 test "x${enable_serial_host_configure}" = xyes &&
1945 for item in ${configdirs} ; do
1946   case ${olditem} in
1947     "") ;;
1948     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1949   esac
1950   olditem=${item}
1951 done
1952 olditem=
1953 test "x${enable_serial_target_configure}" = xyes &&
1954 for item in ${target_configdirs} ; do
1955   case ${olditem} in
1956     "") ;;
1957     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1958   esac
1959   olditem=${item}
1960 done
1961 serialization_dependencies=serdep.tmp
1962 AC_SUBST_FILE(serialization_dependencies)
1963
1964 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1965 # target and nonopt.  These are the ones we might not want to pass
1966 # down to subconfigures.  Also strip program-prefix, program-suffix,
1967 # and program-transform-name, so that we can pass down a consistent
1968 # program-transform-name.  If autoconf has put single quotes around
1969 # any of these arguments (because they contain shell metacharacters)
1970 # then this will fail; in practice this only happens for
1971 # --program-transform-name, so be sure to override --program-transform-name
1972 # at the end of the argument list.
1973 # These will be expanded by make, so quote '$'.
1974 cat <<\EOF_SED > conftestsed
1975 s/ --no[[^ ]]*/ /g
1976 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1977 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1978 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1979 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1980 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1981 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1982 s/ -cache-file[[= ]][[^ ]]*//g
1983 s/ -srcdir[[= ]][[^ ]]*//g
1984 s/ -host[[= ]][[^ ]]*//g
1985 s/ -build[[= ]][[^ ]]*//g
1986 s/ -target[[= ]][[^ ]]*//g
1987 s/ -program-prefix[[= ]][[^ ]]*//g
1988 s/ -program-suffix[[= ]][[^ ]]*//g
1989 s/ -program-transform-name[[= ]][[^ ]]*//g
1990 s/ [[^' -][^ ]*] / /
1991 s/^ *//;s/ *$//
1992 s,\$,$$,g
1993 EOF_SED
1994 sed -f conftestsed <<EOF_SED > conftestsed.out
1995  ${ac_configure_args}
1996 EOF_SED
1997 baseargs=`cat conftestsed.out`
1998 rm -f conftestsed conftestsed.out
1999
2000 # Add in --program-transform-name, after --program-prefix and
2001 # --program-suffix have been applied to it.  Autoconf has already
2002 # doubled dollar signs and backslashes in program_transform_name; we want
2003 # the backslashes un-doubled, and then the entire thing wrapped in single
2004 # quotes, because this will be expanded first by make and then by the shell.
2005 # Also, because we want to override the logic in subdir configure scripts to
2006 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2007 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2008 ${program_transform_name}
2009 EOF_SED
2010 gcc_transform_name=`cat conftestsed.out`
2011 rm -f conftestsed.out
2012 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2013
2014 # For the build-side libraries, we just need to pretend we're native,
2015 # and not use the same cache file.  Multilibs are neither needed nor
2016 # desired.
2017 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
2018
2019 # For host modules, accept cache file option, or specification as blank.
2020 case "${cache_file}" in
2021 "") # empty
2022   cache_file_option="" ;;
2023 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2024   cache_file_option="--cache-file=${cache_file}" ;;
2025 *) # relative path
2026   cache_file_option="--cache-file=../${cache_file}" ;;
2027 esac
2028
2029 # Host dirs don't like to share a cache file either, horribly enough.
2030 # This seems to be due to autoconf 2.5x stupidity.
2031 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
2032
2033 target_configargs=${baseargs}
2034
2035 # Passing a --with-cross-host argument lets the target libraries know
2036 # whether they are being built with a cross-compiler or being built
2037 # native.  However, it would be better to use other mechanisms to make the
2038 # sorts of decisions they want to make on this basis.  Please consider
2039 # this option to be deprecated.  FIXME.
2040 if test x${is_cross_compiler} = xyes ; then
2041   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2042 fi
2043
2044 # Default to --enable-multilib.
2045 if test x${enable_multilib} = x ; then
2046   target_configargs="--enable-multilib ${target_configargs}"
2047 fi
2048
2049 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2050 # changed from the earlier setting of with_newlib.
2051 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2052   target_configargs="--with-newlib ${target_configargs}"
2053 fi
2054
2055 # Different target subdirs use different values of certain variables
2056 # (notably CXX).  Worse, multilibs use *lots* of different values.
2057 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2058 # it doesn't automatically accept command-line overrides of them.
2059 # This means it's not safe for target subdirs to share a cache file,
2060 # which is disgusting, but there you have it.  Hopefully this can be
2061 # fixed in future.  It's still worthwhile to use a cache file for each
2062 # directory.  I think.
2063
2064 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2065 # We need to pass --target, as newer autoconf's requires consistency
2066 # for target_alias and gcc doesn't manage it consistently.
2067 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2068
2069 FLAGS_FOR_TARGET=
2070 case " $target_configdirs " in
2071  *" newlib "*)
2072   case " $target_configargs " in
2073   *" --with-newlib "*)
2074    case "$target" in
2075    *-cygwin*)
2076      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' ;;
2077    esac
2078
2079    # If we're not building GCC, don't discard standard headers.
2080    if test -d ${srcdir}/gcc; then
2081      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2082
2083      if test "${build}" != "${host}"; then
2084        # On Canadian crosses, CC_FOR_TARGET will have already been set
2085        # by `configure', so we won't have an opportunity to add -Bgcc/
2086        # to it.  This is right: we don't want to search that directory
2087        # for binaries, but we want the header files in there, so add
2088        # them explicitly.
2089        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2090
2091        # Someone might think of using the pre-installed headers on
2092        # Canadian crosses, in case the installed compiler is not fully
2093        # compatible with the compiler being built.  In this case, it
2094        # would be better to flag an error than risking having
2095        # incompatible object files being constructed.  We can't
2096        # guarantee that an error will be flagged, but let's hope the
2097        # compiler will do it, when presented with incompatible header
2098        # files.
2099      fi
2100    fi
2101
2102    case "${target}-${is_cross_compiler}" in
2103    i[[3456789]]86-*-linux*-no)
2104       # Here host == target, so we don't need to build gcc,
2105       # so we don't want to discard standard headers.
2106       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2107       ;;
2108    *)
2109       # If we're building newlib, use its generic headers last, but search
2110       # for any libc-related directories first (so make it the last -B
2111       # switch).
2112       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2113       ;;
2114    esac
2115    ;;
2116   esac
2117   ;;
2118 esac
2119
2120 # Allow the user to override the flags for
2121 # our build compiler if desired.
2122 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2123
2124 # On Canadian crosses, we'll be searching the right directories for
2125 # the previously-installed cross compiler, so don't bother to add
2126 # flags for directories within the install tree of the compiler
2127 # being built; programs in there won't even run.
2128 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2129   # Search for pre-installed headers if nothing else fits.
2130   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2131 fi
2132
2133 if test "x${use_gnu_ld}" = x &&
2134    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2135   # Arrange for us to find uninstalled linker scripts.
2136   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2137 fi
2138
2139 # Search for other target-specific linker scripts and such.
2140 case "${target}" in
2141   m32c-*-* )
2142     if test -d ${srcdir}/libgloss/m32c; then
2143       # This is for crt0.o
2144       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2145       # This is for r8c.ld
2146       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2147       # This is for libnosys.a
2148       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2149     fi
2150     ;;
2151 esac
2152
2153 # Makefile fragments.
2154 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2155 do
2156   eval fragval=\$$frag
2157   if test $fragval != /dev/null; then
2158     eval $frag=${srcdir}/$fragval
2159   fi
2160 done
2161 AC_SUBST_FILE(host_makefile_frag)
2162 AC_SUBST_FILE(target_makefile_frag)
2163 AC_SUBST_FILE(alphaieee_frag)
2164 AC_SUBST_FILE(ospace_frag)
2165
2166 # Miscellanea: directories, flags, etc.
2167 AC_SUBST(RPATH_ENVVAR)
2168 AC_SUBST(tooldir)
2169 AC_SUBST(build_tooldir)
2170 AC_SUBST(CONFIGURE_GDB_TK)
2171 AC_SUBST(GDB_TK)
2172 AC_SUBST(INSTALL_GDB_TK)
2173
2174 # Build module lists & subconfigure args.
2175 AC_SUBST(build_configargs)
2176 AC_SUBST(build_configdirs)
2177
2178 # Host module lists & subconfigure args.
2179 AC_SUBST(host_configargs)
2180 AC_SUBST(configdirs)
2181
2182 # Target module lists & subconfigure args.
2183 AC_SUBST(target_configargs)
2184
2185
2186 # Build tools.
2187 AC_SUBST(CC_FOR_BUILD)
2188 AC_SUBST(config_shell)
2189
2190 # Generate default definitions for YACC, M4, LEX and other programs that run
2191 # on the build machine.  These are used if the Makefile can't locate these
2192 # programs in objdir.
2193 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2194
2195 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2196 case " $build_configdirs " in
2197   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2198   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2199 esac
2200
2201 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2202 case " $build_configdirs " in
2203   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2204 esac
2205
2206 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2207 case " $build_configdirs " in
2208   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2209 esac
2210
2211 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2212 case " $build_configdirs " in
2213   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2214   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2215 esac
2216
2217 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2218 case " $build_configdirs " in
2219   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2220 esac
2221
2222 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2223 case " $build_configdirs " in
2224   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2225   *)
2226 changequote(,)
2227     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2228     # higher, else we use the "missing" dummy.
2229     if ${MAKEINFO} --version \
2230        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2231       :
2232     else
2233       MAKEINFO="$MISSING makeinfo"
2234     fi
2235     ;;
2236 changequote([,])
2237 esac
2238
2239 # FIXME: expect and dejagnu may become build tools?
2240
2241 AC_CHECK_PROGS(EXPECT, expect, expect)
2242 case " $configdirs " in
2243   *" expect "*)
2244     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2245     ;;
2246 esac
2247
2248 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2249 case " $configdirs " in
2250   *" dejagnu "*)
2251     test $host = $build && RUNTEST='$$r/$(HOST_SUBDIR)/dejagnu/runtest'
2252     ;;
2253 esac
2254
2255
2256 # Host tools.
2257 NCN_STRICT_CHECK_TOOLS(AR, ar)
2258 NCN_STRICT_CHECK_TOOLS(AS, as)
2259 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2260 NCN_STRICT_CHECK_TOOLS(LD, ld)
2261 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2262 NCN_STRICT_CHECK_TOOLS(NM, nm)
2263 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2264 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2265 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2266 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2267 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2268 AC_SUBST(CC)
2269 AC_SUBST(CXX)
2270 AC_SUBST(CFLAGS)
2271 AC_SUBST(CFLAGS_FOR_BUILD)
2272 AC_SUBST(CXXFLAGS)
2273
2274 # Target tools.
2275 AC_ARG_WITH([build-time-tools],
2276   [  --with-build-time-tools=path
2277                           use given path to find target tools during the build],
2278   [case x"$withval" in
2279      x/*) ;;
2280      *)
2281        with_build_time_tools=
2282        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2283        ;;
2284    esac],
2285   [with_build_time_tools=])
2286
2287 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2288 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2289 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2290 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2291 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2292
2293 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2294 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2295 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2296 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2297 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2298 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2299 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2300 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2301 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2302 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2303
2304 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2305
2306 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2307 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2308 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2309 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2310                 [gcc/g++ -B$$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],
2311                 c++)
2312 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2313                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2314                 c++)
2315 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2316 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2317 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2318                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2319 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2320                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2321 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2322 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2323 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2324 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2325 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2326 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2327 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2328
2329 AC_SUBST(FLAGS_FOR_TARGET)
2330 AC_SUBST(RAW_CXX_FOR_TARGET)
2331
2332 # Certain tools may need extra flags.
2333 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2334 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2335 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2336
2337 # When building target libraries, except in a Canadian cross, we use
2338 # the same toolchain as the compiler we just built.
2339 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2340 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2341 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2342 if test $host = $build; then
2343   case " $configdirs " in
2344     *" gcc "*)
2345       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2346       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2347       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2348       ;;
2349   esac
2350 fi
2351
2352 AC_SUBST(COMPILER_AS_FOR_TARGET)
2353 AC_SUBST(COMPILER_LD_FOR_TARGET)
2354 AC_SUBST(COMPILER_NM_FOR_TARGET)
2355
2356 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2357 AC_ARG_ENABLE(maintainer-mode,
2358 [  --enable-maintainer-mode enable make rules and dependencies not useful
2359                           (and sometimes confusing) to the casual installer],
2360       USE_MAINTAINER_MODE=$enableval,
2361       USE_MAINTAINER_MODE=no)
2362 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2363 AC_SUBST(MAINTAINER_MODE_TRUE)
2364 AC_SUBST(MAINTAINER_MODE_FALSE)
2365 if test "$USE_MAINTAINER_MODE" = yes; then
2366   MAINTAINER_MODE_TRUE=
2367   MAINTAINER_MODE_FALSE='#'
2368 else
2369   MAINTAINER_MODE_TRUE='#'
2370   MAINTAINER_MODE_FALSE=
2371 fi
2372 MAINT=$MAINTAINER_MODE_TRUE
2373 AC_SUBST(MAINT)dnl
2374
2375 # ---------------------
2376 # GCC bootstrap support
2377 # ---------------------
2378
2379 # Stage specific cflags for build.
2380 stage1_cflags="-g"
2381 case $build in
2382   vax-*-*)
2383     case ${GCC} in
2384       yes) stage1_cflags="-g -Wa,-J" ;;
2385       *) stage1_cflags="-g -J" ;;
2386     esac ;;
2387   powerpc-*-darwin*)
2388     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2389     # sources; use -no-cpp-precomp to get to GNU cpp.
2390     # Apple's GCC has bugs in designated initializer handling, so disable
2391     # that too.
2392     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2393     ;;
2394 esac
2395 AC_SUBST(stage1_cflags)
2396
2397 # Enable -Werror in bootstrap stage2 and later.
2398 # Change the default to "no" on release branches.
2399 AC_ARG_ENABLE(werror,
2400 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2401 [enable_werror=yes])
2402 case ${enable_werror} in
2403   yes) stage2_werror_flag="--enable-werror-always" ;;
2404   *) stage2_werror_flag="" ;;
2405 esac
2406 AC_SUBST(stage2_werror_flag)
2407
2408 AC_OUTPUT(Makefile)