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-zlib \
 138         target-qthreads \
 139         target-libjava"
 140
 141 # these libraries are built for the target environment, and are built after
 142 # the host libraries and the host tools (which may be a cross compiler)
 143 #
 144 target_libraries="target-libiberty \
 145                 target-libgloss \
 146                 target-newlib \
 147                 target-libstdc++-v3 \
 148                 target-libmudflap \
 149                 target-libssp \
 150                 target-libgfortran \
 151                 target-boehm-gc \
 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 newlib"
 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* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
 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 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-winsup"
 619     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 620     ;;
 621   *-*-cygwin*)
 622     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 623     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 624     # always build newlib if winsup directory is present.
 625     if test -d "$srcdir/winsup/cygwin"; then
 626       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 627     elif test -d "$srcdir/newlib"; then
 628       echo "Warning: winsup/cygwin is missing so newlib can't be built."
 629     fi
 630     ;;
 631   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 632   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 633     ;;
 634   i[[3456789]]86-*-pe)
 635     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 636     ;;
 637   i[[3456789]]86-*-sco3.2v5*)
 638     # The linker does not yet know about weak symbols in COFF,
 639     # and is not configured to handle mixed ELF and COFF.
 640     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 641     ;;
 642   i[[3456789]]86-*-sco*)
 643     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 644     ;;
 645   i[[3456789]]86-*-solaris2*)
 646     noconfigdirs="$noconfigdirs target-libgloss"
 647     ;;
 648   i[[3456789]]86-*-sysv4*)
 649     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 650     ;;
 651   i[[3456789]]86-*-beos*)
 652     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 653     ;;
 654   i[[3456789]]86-*-rdos*)
 655     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 656     ;;
 657   m32r-*-*)
 658     noconfigdirs="$noconfigdirs ${libgcj}"
 659     ;;
 660   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 661     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 662     ;;
 663   m68k-*-elf*)
 664     noconfigdirs="$noconfigdirs ${libgcj}"
 665     ;;
 666   m68k-*-coff*)
 667     noconfigdirs="$noconfigdirs ${libgcj}"
 668     ;;
 669   mcore-*-pe*)
 670   # The EPOC C++ environment does not support exceptions or rtti,
 671   # and so building libstdc++-v3 tends not to always work.
 672     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 673     ;;
 674   mmix-*-*)
 675     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 676     unsupported_languages="$unsupported_languages fortran java"
 677     ;;
 678   mn10200-*-*)
 679     noconfigdirs="$noconfigdirs ${libgcj}"
 680     ;;
 681   mn10300-*-*)
 682     noconfigdirs="$noconfigdirs ${libgcj}"
 683     ;;
 684   mt-*-*)
 685     noconfigdirs="$noconfigdirs sim"
 686     ;;
 687   powerpc-*-aix*)
 688     # copied from rs6000-*-* entry
 689     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 690     ;;
 691   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 692     target_configdirs="$target_configdirs target-winsup"
 693     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 694     # always build newlib.
 695     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 696     ;;
 697     # This is temporary until we can link against shared libraries
 698   powerpcle-*-solaris*)
 699     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 700     ;;
 701   powerpc-*-beos*)
 702     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 703     ;;
 704   powerpc-*-eabi)
 705     noconfigdirs="$noconfigdirs ${libgcj}"
 706     ;;
 707   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 708     ;;
 709   rs6000-*-lynxos*)
 710     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 711     ;;
 712   rs6000-*-aix*)
 713     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 714     ;;
 715   rs6000-*-*)
 716     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 717     ;;
 718   m68k-apollo-*)
 719     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 720     ;;
 721   mips*-*-irix5*)
 722     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 723     ;;
 724   mips*-*-irix6*)
 725     # Linking libjava exceeds command-line length limits on at least
 726     # IRIX 6.2, but not on IRIX 6.5.
 727     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 728     # <oldham@codesourcery.com>
 729     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 730     ;;
 731   mips*-*-bsd*)
 732     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 733     ;;
 734   mips64*-*-linux*)
 735     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 736     ;;
 737   mips*-*-linux*)
 738     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 739     ;;
 740   mips*-*-*)
 741     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 742     ;;
 743   romp-*-*)
 744     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 745     ;;
 746   sh-*-* | sh64-*-*)
 747     case "${host}" in
 748       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 749       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 750       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 751       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 752     esac
 753     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 754     ;;
 755   sparc-*-elf*)
 756     noconfigdirs="$noconfigdirs ${libgcj}"
 757     ;;
 758   sparc64-*-elf*)
 759     noconfigdirs="$noconfigdirs ${libgcj}"
 760     ;;
 761   sparclite-*-*)
 762     noconfigdirs="$noconfigdirs ${libgcj}"
 763     ;;
 764   sparc-*-sunos4*)
 765     noconfigdirs="$noconfigdirs ${libgcj}"
 766     if test x${is_cross_compiler} != xno ; then
 767            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 768     else
 769            use_gnu_ld=no
 770     fi
 771     ;;
 772   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 773     noconfigdirs="$noconfigdirs ${libgcj}"
 774     ;;
 775   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 776     ;;
 777   spu-*-*)
 778     skipdirs="target-libiberty target-libssp"
 779     ;;
 780   v810-*-*)
 781     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 782     ;;
 783   v850-*-*)
 784     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 785     ;;
 786   v850e-*-*)
 787     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 788     ;;
 789   v850ea-*-*)
 790     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 791     ;;
 792   vax-*-vms)
 793     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 794     ;;
 795   vax-*-*)
 796     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 797     ;;
 798   xtensa-*-*)
 799     noconfigdirs="$noconfigdirs ${libgcj}"
 800     ;;
 801   ip2k-*-*)
 802     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 803     ;;
 804   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 805     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 806     ;;
 807   *-*-lynxos*)
 808     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 809     ;;
 810   *-*-*)
 811     noconfigdirs="$noconfigdirs ${libgcj}"
 812     ;;
 813 esac
 814
 815 # If we aren't building newlib, then don't build libgloss, since libgloss
 816 # depends upon some newlib header files.
 817 case "${noconfigdirs}" in
 818   *target-libgloss*) ;;
 819   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 820 esac
 821
 822 # Work in distributions that contain no compiler tools, like Autoconf.
 823 tentative_cc=""
 824 host_makefile_frag=/dev/null
 825 if test -d ${srcdir}/config ; then
 826 case "${host}" in
 827   m68k-hp-hpux*)
 828     # Avoid "too much defining" errors from HPUX compiler.
 829     tentative_cc="cc -Wp,-H256000"
 830     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 831     # If it's HP/UX ar, this should be harmless.
 832     RANLIB="ar ts"
 833     ;;
 834   m68k-apollo-sysv*)
 835     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 836     ;;
 837   m68k-apollo-bsd*)
 838     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 839     # chokes on bfd, the compiler won't let you assign integers to enums, and
 840     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 841     # the apollo compiler" (the preferred version of GCC could be called cc,
 842     # or whatever), but I'm not sure leaving CC as cc is any better...
 843     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 844     # Used to have BISON=yacc.
 845     tentative_cc=gcc
 846     ;;
 847   m88k-dg-dgux*)
 848     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 849     ;;
 850   m88k-harris-cxux*)
 851     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 852     tentative_cc="cc -Xa"
 853     host_makefile_frag="config/mh-cxux"
 854     ;;
 855   m88k-motorola-sysv*)
 856     ;;
 857   mips*-dec-ultrix*)
 858     tentative_cc="cc -Wf,-XNg1000"
 859     host_makefile_frag="config/mh-decstation"
 860     ;;
 861   mips*-nec-sysv4*)
 862     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 863     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 864     host_makefile_frag="config/mh-necv4"
 865     ;;
 866   mips*-sgi-irix4*)
 867     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 868     # environment.  Also bump switch table size so that cp-parse will
 869     # compile.  Bump string length limit so linker builds.
 870     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 871     ;;
 872   mips*-*-sysv4*)
 873     host_makefile_frag="config/mh-sysv4"
 874     ;;
 875   mips*-*-sysv*)
 876     # This is for a MIPS running RISC/os 4.52C.
 877
 878     # This is needed for GDB, but needs to be in the top-level make because
 879     # if a library is compiled with the bsd headers and gets linked with the
 880     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 881     # a different size).
 882     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 883     # known except to select the sysv environment.  Could we use /proc instead?
 884     # These "sysv environments" and "bsd environments" often end up being a pain.
 885     #
 886     # This is not part of CFLAGS because perhaps not all C compilers have this
 887     # option.
 888     tentative_cc="cc -systype sysv"
 889     ;;
 890   i370-ibm-opened*)
 891     tentative_cc="c89"
 892     ;;
 893   i[[3456789]]86-*-sysv5*)
 894     host_makefile_frag="config/mh-sysv5"
 895     ;;
 896   i[[3456789]]86-*-dgux*)
 897     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 898     host_makefile_frag="config/mh-dgux386"
 899     ;;
 900   i[[3456789]]86-ncr-sysv4.3*)
 901     # The MetaWare compiler will generate a copyright message unless you
 902     # turn it off by adding the -Hnocopyr flag.
 903     tentative_cc="cc -Hnocopyr"
 904     ;;
 905   i[[3456789]]86-ncr-sysv4*)
 906     # for an NCR 3000 (i486/SVR4) system.
 907     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 908     # This compiler not only emits obnoxious copyright messages every time
 909     # you run it, but it chokes and dies on a whole bunch of GNU source
 910     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 911     tentative_cc="/usr/ccs/ATT/cc"
 912     host_makefile_frag="config/mh-ncr3000"
 913     ;;
 914   i[[3456789]]86-*-sco3.2v5*)
 915     ;;
 916   i[[3456789]]86-*-sco*)
 917     # The native C compiler botches some simple uses of const.  Unfortunately,
 918     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 919     tentative_cc="cc -Dconst="
 920     host_makefile_frag="config/mh-sco"
 921     ;;
 922   i[[3456789]]86-*-udk*)
 923     host_makefile_frag="config/mh-sysv5"
 924     ;;
 925   i[[3456789]]86-*-solaris2*)
 926     host_makefile_frag="config/mh-sysv4"
 927     ;;
 928   i[[3456789]]86-*-msdosdjgpp*)
 929     host_makefile_frag="config/mh-djgpp"
 930     ;;
 931   *-cygwin*)
 932     host_makefile_frag="config/mh-cygwin"
 933     ;;
 934   *-mingw32*)
 935     ;;
 936   *-interix*)
 937     host_makefile_frag="config/mh-interix"
 938     ;;
 939   vax-*-ultrix2*)
 940     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 941     tentative_cc=gcc
 942     ;;
 943   *-*-solaris2*)
 944     host_makefile_frag="config/mh-solaris"
 945     ;;
 946   m68k-sun-sunos*)
 947     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 948     # without overflowing the jump tables (-J says to use a 32 bit table)
 949     tentative_cc="cc -J"
 950     ;;
 951   *-hp-hpux*)
 952     tentative_cc="cc -Wp,-H256000"
 953     ;;
 954   *-*-hiux*)
 955     tentative_cc="cc -Wp,-H256000"
 956     ;;
 957   rs6000-*-lynxos*)
 958     # /bin/cc is less than useful for our purposes.  Always use GCC
 959     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 960     host_makefile_frag="config/mh-lynxrs6k"
 961     ;;
 962   powerpc-*-darwin*)
 963     host_makefile_frag="config/mh-ppc-darwin"
 964     ;;
 965   powerpc-*-aix*)
 966     host_makefile_frag="config/mh-ppc-aix"
 967     ;;
 968   rs6000-*-aix*)
 969     host_makefile_frag="config/mh-ppc-aix"
 970     ;;
 971   *-*-lynxos*)
 972     # /bin/cc is less than useful for our purposes.  Always use GCC
 973     tentative_cc="/bin/gcc"
 974     ;;
 975   *-*-sysv4*)
 976     host_makefile_frag="config/mh-sysv4"
 977     ;;
 978   # This is placed last to prevent interfering with the cases above.
 979   i[[3456789]]86-*-*)
 980     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 981     host_makefile_frag="config/mh-x86omitfp"
 982     ;;
 983 esac
 984 fi
 985
 986 # If we aren't going to be using gcc, see if we can extract a definition
 987 # of CC from the fragment.
 988 # Actually, use the 'pre-extracted' version above.
 989 if test -z "${CC}" && test "${build}" = "${host}" ; then
 990   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 991   found=
 992   for dir in $PATH; do
 993     test -z "$dir" && dir=.
 994     if test -f $dir/gcc; then
 995       found=yes
 996       break
 997     fi
 998   done
 999   IFS="$save_ifs"
1000   if test -z "${found}" && test -n "${tentative_cc}" ; then
1001     CC=$tentative_cc
1002   fi
1003 fi
1004
1005 if test "${build}" != "${host}" ; then
1006   # If we are doing a Canadian Cross, in which the host and build systems
1007   # are not the same, we set reasonable default values for the tools.
1008
1009   CC=${CC-${host_alias}-gcc}
1010   CFLAGS=${CFLAGS-"-g -O2"}
1011   CXX=${CXX-${host_alias}-c++}
1012   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1013   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1014
1015 else
1016   # Set reasonable default values for some tools even if not Canadian.
1017   # Of course, these are different reasonable default values, originally
1018   # specified directly in the Makefile.
1019   # We don't export, so that autoconf can do its job.
1020   # Note that all these settings are above the fragment inclusion point
1021   # in Makefile.in, so can still be overridden by fragments.
1022   # This is all going to change when we autoconfiscate...
1023
1024   CC_FOR_BUILD="\$(CC)"
1025   AC_PROG_CC
1026
1027   # We must set the default linker to the linker used by gcc for the correct
1028   # operation of libtool.  If LD is not defined and we are using gcc, try to
1029   # set the LD default to the ld used by gcc.
1030   if test -z "$LD"; then
1031     if test "$GCC" = yes; then
1032       case $build in
1033       *-*-mingw*)
1034         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1035       *)
1036         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1037       esac
1038       case $gcc_prog_ld in
1039       # Accept absolute paths.
1040       [[\\/]* | [A-Za-z]:[\\/]*)]
1041         LD="$gcc_prog_ld" ;;
1042       esac
1043     fi
1044   fi
1045
1046   CXX=${CXX-"c++"}
1047   CFLAGS=${CFLAGS-"-g"}
1048   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1049 fi
1050
1051 ACX_PROG_GNAT
1052 ACX_PROG_CMP_IGNORE_INITIAL
1053
1054 # Check for GMP and MPFR
1055 gmplibs="-lmpfr"
1056 gmpinc=
1057 have_gmp=yes
1058 # Specify a location for mpfr
1059 # check for this first so it ends up on the link line before gmp.
1060 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    This option has been REMOVED],
1061   AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1062 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH]))
1063
1064 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify prefix directory for installed MPFR package
1065                           Equivalent to --with-mpfr-include=PATH/include
1066                           plus --with-mpfr-lib=PATH/lib])
1067 AC_ARG_WITH(mpfr_include, [  --with-mpfr-include=PATH
1068                           Specify directory for installed MPFR include files])
1069 AC_ARG_WITH(mpfr_lib, [  --with-mpfr-lib=PATH    Specify the directory for the installed MPFR library])
1070
1071 if test "x$with_mpfr" != x; then
1072   gmplibs="-L$with_mpfr/lib $gmplibs"
1073   gmpinc="-I$with_mpfr/include"
1074 fi
1075 if test "x$with_mpfr_include" != x; then
1076   gmpinc="-I$with_mpfr_include"
1077 fi
1078 if test "x$with_mpfr_lib" != x; then
1079   gmplibs="-L$with_mpfr_lib $gmplibs"
1080 fi
1081
1082 # Specify a location for gmp
1083 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     This option has been REMOVED],
1084   AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1085 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH]))
1086
1087 gmplibs="$gmplibs -lgmp"
1088
1089 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify prefix directory for the installed GMP package
1090                           Equivalent to --with-gmp-include=PATH/include
1091                           plus --with-gmp-lib=PATH/lib])
1092 AC_ARG_WITH(gmp_include, [  --with-gmp-include=PATH Specify directory for installed GMP include files])
1093 AC_ARG_WITH(gmp_lib, [  --with-gmp-lib=PATH     Specify the directory for the installed GMP library])
1094
1095
1096 if test "x$with_gmp" != x; then
1097   gmplibs="-L$with_gmp/lib $gmplibs"
1098   gmpinc="-I$with_gmp/include $gmpinc"
1099 fi
1100 if test "x$with_gmp_include" != x; then
1101   gmpinc="-I$with_gmp_include $gmpinc"
1102 fi
1103 if test "x$with_gmp_lib" != x; then
1104   gmplibs="-L$with_gmp_lib $gmplibs"
1105 fi
1106
1107 saved_CFLAGS="$CFLAGS"
1108 CFLAGS="$CFLAGS $gmpinc"
1109 # Check GMP actually works
1110 AC_MSG_CHECKING([for correct version of gmp.h])
1111 AC_TRY_COMPILE([#include "gmp.h"],[
1112 #if __GNU_MP_VERSION < 4 || (__GNU_MP_VERSION == 4 && __GNU_MP_VERSION_MINOR < 1)
1113 choke me
1114 #endif
1115 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1116
1117 if test x"$have_gmp" = xyes; then
1118   saved_LIBS="$LIBS"
1119   LIBS="$LIBS $gmplibs"
1120   AC_MSG_CHECKING([for correct version of mpfr.h])
1121   AC_TRY_LINK([#include <gmp.h>
1122 #include <mpfr.h>],[
1123 #if MPFR_VERSION_MAJOR < 2 || (MPFR_VERSION_MAJOR == 2 && MPFR_VERSION_MINOR < 2)
1124   choke me
1125 #endif
1126   mpfr_t n; mpfr_init(n);
1127 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1128   LIBS="$saved_LIBS"
1129 fi
1130 CFLAGS="$saved_CFLAGS"
1131
1132 if test -d ${srcdir}/gcc && test x$have_gmp != xyes; then
1133   AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.2.1+.
1134 Try the --with-gmp and/or --with-mpfr options to specify their locations.
1135 Copies of these libraries' source code can be found at their respective
1136 hosting sites as well as at ftp://gcc.gnu.org/pub/gcc/infrastructure/.
1137 See also http://gcc.gnu.org/install/prerequisites.html for additional info.
1138 If you obtained GMP and/or MPFR from a vendor distribution package, make
1139 sure that you have installed both the libraries and the header files.
1140 They may be located in separate packages.])
1141 fi
1142
1143 # Flags needed for both GMP and/or MPFR
1144 AC_SUBST(gmplibs)
1145 AC_SUBST(gmpinc)
1146
1147 # By default, C is the only stage 1 language.
1148 stage1_languages=c
1149 AC_SUBST(stage1_languages)
1150
1151 # Figure out what language subdirectories are present.
1152 # Look if the user specified --enable-languages="..."; if not, use
1153 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1154 # go away some day.
1155 # NB:  embedded tabs in this IF block -- do not untabify
1156 if test -d ${srcdir}/gcc; then
1157   if test x"${enable_languages+set}" != xset; then
1158     if test x"${LANGUAGES+set}" = xset; then
1159       enable_languages="${LANGUAGES}"
1160         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1161     else
1162       enable_languages=all
1163     fi
1164   else
1165     if test x"${enable_languages}" = x ||
1166        test x"${enable_languages}" = xyes;
1167        then
1168       echo configure.in: --enable-languages needs at least one language argument 1>&2
1169       exit 1
1170     fi
1171   fi
1172   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1173
1174   # 'f95' is the old name for the 'fortran' language. We issue a warning
1175   # and make the substitution.
1176   case ,${enable_languages}, in
1177     *,f95,*)
1178       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1179       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1180       ;;
1181   esac
1182
1183   # First scan to see if an enabled language requires some other language.
1184   # We assume that a given config-lang.in will list all the language
1185   # front ends it requires, even if some are required indirectly.
1186   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1187     case ${lang_frag} in
1188       ..) ;;
1189       # The odd quoting in the next line works around
1190       # an apparent bug in bash 1.12 on linux.
1191       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1192       *)
1193         # From the config-lang.in, get $language, $lang_requires
1194         language=
1195         lang_requires=
1196         . ${lang_frag}
1197         for other in ${lang_requires} ; do
1198           case ,${enable_languages}, in
1199             *,$other,*) ;;
1200             *,all,*) ;;
1201             *,$language,*)
1202               echo " \`$other' language required by \`$language'; enabling" 1>&2
1203               enable_languages="${enable_languages},${other}"
1204               ;;
1205           esac
1206         done
1207         ;;
1208     esac
1209   done
1210
1211   new_enable_languages=c
1212   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1213   potential_languages=c
1214
1215   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1216     case ${lang_frag} in
1217       ..) ;;
1218       # The odd quoting in the next line works around
1219       # an apparent bug in bash 1.12 on linux.
1220       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1221       *)
1222         # From the config-lang.in, get $language, $target_libs,
1223         # $lang_dirs, $boot_language, and $build_by_default
1224         language=
1225         target_libs=
1226         lang_dirs=
1227         subdir_requires=
1228         boot_language=
1229         build_by_default=
1230         . ${lang_frag}
1231         potential_languages="${potential_languages},${language}"
1232         # This is quite sensitive to the ordering of the case statement arms.
1233         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1234           *::*:*)
1235             echo "${lang_frag} doesn't set \$language." 1>&2
1236             exit 1
1237             ;;
1238           *:ada:no:*)
1239             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1240             add_this_lang=no
1241             ;;
1242           *,${language},*:*:*:*)
1243             # Language was explicitly selected; include it.
1244             add_this_lang=yes
1245             ;;
1246           *,all,*:*:*:no)
1247             # 'all' was selected, but this is not a default language
1248             # so do not include it.
1249             add_this_lang=no
1250             ;;
1251           *,all,*:*:*:*)
1252             # 'all' was selected and this is a default language; include it.
1253             add_this_lang=yes
1254             ;;
1255           *)
1256             add_this_lang=no
1257             ;;
1258         esac
1259
1260         # Disable languages that need other directories if these aren't available.
1261         for i in $subdir_requires; do
1262           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1263           case ,${enable_languages}, in
1264             *,${language},*)
1265               # Specifically requested language; tell them.
1266               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1267               ;;
1268             *)
1269               # Silently disable.
1270               add_this_lang=no
1271               ;;
1272           esac
1273         done
1274
1275         # Disable a language that is unsupported by the target.
1276         case " $unsupported_languages " in
1277           *" $language "*)
1278             add_this_lang=no
1279             ;;
1280         esac
1281
1282         case $add_this_lang in
1283           no)
1284             # Remove language-dependent dirs.
1285             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1286             ;;
1287           *)
1288             new_enable_languages="$new_enable_languages,$language"
1289             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1290             case ${boot_language} in
1291               yes)
1292                 # Add to (comma-separated) list of stage 1 languages.
1293                 stage1_languages="${stage1_languages},${language}"
1294                 ;;
1295             esac
1296             ;;
1297         esac
1298         ;;
1299     esac
1300   done
1301
1302   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1303   if test "x$missing_languages" != x; then
1304     AC_MSG_ERROR([
1305 The following requested languages could not be built: ${missing_languages}
1306 Recognised languages are: ${potential_languages}])
1307   fi
1308
1309   if test "x$new_enable_languages" != "x$enable_languages"; then
1310     echo The following languages will be built: ${new_enable_languages}
1311   fi
1312   enable_languages="$new_enable_languages"
1313   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1314 fi
1315
1316 # Handle --disable-<component> generically.
1317 for dir in $configdirs $build_configdirs $target_configdirs ; do
1318   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1319   if eval test x\${enable_${dirname}} "=" xno ; then
1320     noconfigdirs="$noconfigdirs $dir"
1321   fi
1322 done
1323
1324 # Check for Boehm's garbage collector
1325 AC_ARG_ENABLE(objc-gc,
1326 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
1327                           the GNU Objective-C runtime.],
1328 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1329   *,objc,*:*:yes:*target-boehm-gc*)
1330     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1331     ;;
1332 esac])
1333
1334 # Make sure we only build Boehm's garbage collector if required.
1335 case ,${enable_languages},:${enable_objc_gc} in
1336   *,objc,*:yes)
1337     # Keep target-boehm-gc if requested for Objective-C.
1338     ;;
1339   *)
1340     # Otherwise remove target-boehm-gc depending on target-libjava.
1341     if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1342       noconfigdirs="$noconfigdirs target-boehm-gc"
1343     fi
1344     ;;
1345 esac
1346
1347 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1348 # $build_configdirs and $target_configdirs.
1349 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1350
1351 notsupp=""
1352 for dir in . $skipdirs $noconfigdirs ; do
1353   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1354   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1355     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1356     if test -r $srcdir/$dirname/configure ; then
1357       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1358         true
1359       else
1360         notsupp="$notsupp $dir"
1361       fi
1362     fi
1363   fi
1364   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1365     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1366     if test -r $srcdir/$dirname/configure ; then
1367       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1368         true
1369       else
1370         notsupp="$notsupp $dir"
1371       fi
1372     fi
1373   fi
1374   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1375     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1376     if test -r $srcdir/$dirname/configure ; then
1377       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1378         true
1379       else
1380         notsupp="$notsupp $dir"
1381       fi
1382     fi
1383   fi
1384 done
1385
1386 # Sometimes the tools are distributed with libiberty but with no other
1387 # libraries.  In that case, we don't want to build target-libiberty.
1388 if test -n "${target_configdirs}" ; then
1389   others=
1390   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1391     if test "$i" != "libiberty" ; then
1392       if test -r $srcdir/$i/configure ; then
1393         others=yes;
1394         break;
1395       fi
1396     fi
1397   done
1398   if test -z "${others}" ; then
1399     target_configdirs=
1400   fi
1401 fi
1402
1403 # Quietly strip out all directories which aren't configurable in this tree.
1404 # This relies on all configurable subdirectories being autoconfiscated, which
1405 # is now the case.
1406 build_configdirs_all="$build_configdirs"
1407 build_configdirs=
1408 for i in ${build_configdirs_all} ; do
1409   j=`echo $i | sed -e s/build-//g`
1410   if test -f ${srcdir}/$j/configure ; then
1411     build_configdirs="${build_configdirs} $i"
1412   fi
1413 done
1414
1415 configdirs_all="$configdirs"
1416 configdirs=
1417 for i in ${configdirs_all} ; do
1418   if test -f ${srcdir}/$i/configure ; then
1419     configdirs="${configdirs} $i"
1420   fi
1421 done
1422
1423 target_configdirs_all="$target_configdirs"
1424 target_configdirs=
1425 for i in ${target_configdirs_all} ; do
1426   j=`echo $i | sed -e s/target-//g`
1427   if test -f ${srcdir}/$j/configure ; then
1428     target_configdirs="${target_configdirs} $i"
1429   fi
1430 done
1431
1432 # Produce a warning message for the subdirs we can't configure.
1433 # This isn't especially interesting in the Cygnus tree, but in the individual
1434 # FSF releases, it's important to let people know when their machine isn't
1435 # supported by the one or two programs in a package.
1436
1437 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1438   # If $appdirs is non-empty, at least one of those directories must still
1439   # be configured, or we error out.  (E.g., if the gas release supports a
1440   # specified target in some subdirs but not the gas subdir, we shouldn't
1441   # pretend that all is well.)
1442   if test -n "$appdirs" ; then
1443     for dir in $appdirs ; do
1444       if test -r $dir/Makefile.in ; then
1445         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1446           appdirs=""
1447           break
1448         fi
1449         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1450           appdirs=""
1451           break
1452         fi
1453       fi
1454     done
1455     if test -n "$appdirs" ; then
1456       echo "*** This configuration is not supported by this package." 1>&2
1457       exit 1
1458     fi
1459   fi
1460   # Okay, some application will build, or we don't care to check.  Still
1461   # notify of subdirs not getting built.
1462   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1463   echo "    ${notsupp}" 1>&2
1464   echo "    (Any other directories should still work fine.)" 1>&2
1465 fi
1466
1467 case "$host" in
1468   *msdosdjgpp*)
1469     enable_gdbtk=no ;;
1470 esac
1471
1472 copy_dirs=
1473
1474 AC_ARG_WITH([build-sysroot],
1475   [  --with-build-sysroot=sysroot
1476                           use sysroot as the system root during the build],
1477   [if test x"$withval" != x ; then
1478      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1479    fi],
1480   [SYSROOT_CFLAGS_FOR_TARGET=])
1481 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1482
1483 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1484 # the named directory are copied to $(tooldir)/sys-include.
1485 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1486   if test x${is_cross_compiler} = xno ; then
1487     echo 1>&2 '***' --with-headers is only supported when cross compiling
1488     exit 1
1489   fi
1490   if test x"${with_headers}" != xyes ; then
1491     case "${exec_prefixoption}" in
1492     "") x=${prefix} ;;
1493     *) x=${exec_prefix} ;;
1494     esac
1495     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1496   fi
1497 fi
1498
1499 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1500 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1501 # are permitted.
1502 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1503   if test x${is_cross_compiler} = xno ; then
1504     echo 1>&2 '***' --with-libs is only supported when cross compiling
1505     exit 1
1506   fi
1507   if test x"${with_libs}" != xyes ; then
1508     # Copy the libraries in reverse order, so that files in the first named
1509     # library override files in subsequent libraries.
1510     case "${exec_prefixoption}" in
1511     "") x=${prefix} ;;
1512     *) x=${exec_prefix} ;;
1513     esac
1514     for l in ${with_libs}; do
1515       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1516     done
1517   fi
1518 fi
1519
1520 # Set with_gnu_as and with_gnu_ld as appropriate.
1521 #
1522 # This is done by determining whether or not the appropriate directory
1523 # is available, and by checking whether or not specific configurations
1524 # have requested that this magic not happen.
1525 #
1526 # The command line options always override the explicit settings in
1527 # configure.in, and the settings in configure.in override this magic.
1528 #
1529 # If the default for a toolchain is to use GNU as and ld, and you don't
1530 # want to do that, then you should use the --without-gnu-as and
1531 # --without-gnu-ld options for the configure script.
1532
1533 if test x${use_gnu_as} = x &&
1534    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1535   with_gnu_as=yes
1536   extra_host_args="$extra_host_args --with-gnu-as"
1537 fi
1538
1539 if test x${use_gnu_ld} = x &&
1540    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1541   with_gnu_ld=yes
1542   extra_host_args="$extra_host_args --with-gnu-ld"
1543 fi
1544
1545 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1546 # can detect this case.
1547
1548 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1549   with_newlib=yes
1550   extra_host_args="$extra_host_args --with-newlib"
1551 fi
1552
1553 # Handle ${copy_dirs}
1554 set fnord ${copy_dirs}
1555 shift
1556 while test $# != 0 ; do
1557   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1558     :
1559   else
1560     echo Copying $1 to $2
1561
1562     # Use the install script to create the directory and all required
1563     # parent directories.
1564     if test -d $2 ; then
1565       :
1566     else
1567       echo >config.temp
1568       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1569     fi
1570
1571     # Copy the directory, assuming we have tar.
1572     # FIXME: Should we use B in the second tar?  Not all systems support it.
1573     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1574
1575     # It is the responsibility of the user to correctly adjust all
1576     # symlinks.  If somebody can figure out how to handle them correctly
1577     # here, feel free to add the code.
1578
1579     echo $1 > $2/COPIED
1580   fi
1581   shift; shift
1582 done
1583
1584 # Determine a target-dependent exec_prefix that the installed
1585 # gcc will search in.  Keep this list sorted by triplet, with
1586 # the *-*-osname triplets last.
1587 md_exec_prefix=
1588 case "${target}" in
1589   alpha*-*-*vms*)
1590     md_exec_prefix=/gnu/lib/gcc-lib
1591     ;;
1592   i[34567]86-pc-msdosdjgpp*)
1593     md_exec_prefix=/dev/env/DJDIR/bin
1594     ;;
1595   i[34567]86-*-sco3.2v5*)
1596     if test $with_gnu_as = yes; then
1597       md_exec_prefix=/usr/gnu/bin
1598     else
1599       md_exec_prefix=/usr/ccs/bin/elf
1600     fi
1601     ;;
1602
1603   mn10300-*-* | \
1604   powerpc-*-chorusos* | \
1605   powerpc*-*-eabi* | \
1606   powerpc*-*-sysv* | \
1607   powerpc*-*-kaos* | \
1608   s390x-ibm-tpf*)
1609     md_exec_prefix=/usr/ccs/bin
1610     ;;
1611   sparc64-*-elf*)
1612     ;;
1613   v850*-*-*)
1614     md_exec_prefix=/usr/ccs/bin
1615     ;;
1616   xtensa-*-elf*)
1617     ;;
1618
1619   *-*-beos* | \
1620   *-*-elf* | \
1621   *-*-hpux* | \
1622   *-*-netware* | \
1623   *-*-nto-qnx* | \
1624   *-*-rtems* | \
1625   *-*-solaris2* | \
1626   *-*-sysv[45]* | \
1627   *-*-vxworks* | \
1628   *-wrs-windiss)
1629     md_exec_prefix=/usr/ccs/bin
1630     ;;
1631 esac
1632
1633 extra_arflags_for_target=
1634 extra_nmflags_for_target=
1635 extra_ranlibflags_for_target=
1636 target_makefile_frag=/dev/null
1637 case "${target}" in
1638   *-*-netware*)
1639     target_makefile_frag="config/mt-netware"
1640     ;;
1641   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1642     target_makefile_frag="config/mt-gnu"
1643     ;;
1644   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1645     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1646     # commands to handle both 32-bit and 64-bit objects.  These flags are
1647     # harmless if we're using GNU nm or ar.
1648     extra_arflags_for_target=" -X32_64"
1649     extra_nmflags_for_target=" -B -X32_64"
1650     ;;
1651   *-*-darwin*)
1652     # ranlib from Darwin requires the -c flag to look at common symbols.
1653     extra_ranlibflags_for_target=" -c"
1654     ;;
1655   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1656     target_makefile_frag="config/mt-wince"
1657     ;;
1658 esac
1659
1660 alphaieee_frag=/dev/null
1661 case $target in
1662   alpha*-*-*)
1663     # This just makes sure to use the -mieee option to build target libs.
1664     # This should probably be set individually by each library.
1665     alphaieee_frag="config/mt-alphaieee"
1666     ;;
1667 esac
1668
1669 # If --enable-target-optspace always use -Os instead of -O2 to build
1670 # the target libraries, similarly if it is not specified, use -Os
1671 # on selected platforms.
1672 ospace_frag=/dev/null
1673 case "${enable_target_optspace}:${target}" in
1674   yes:*)
1675     ospace_frag="config/mt-ospace"
1676     ;;
1677   :d30v-*)
1678     ospace_frag="config/mt-d30v"
1679     ;;
1680   :m32r-* | :d10v-* | :fr30-*)
1681     ospace_frag="config/mt-ospace"
1682     ;;
1683   no:* | :*)
1684     ;;
1685   *)
1686     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1687     ;;
1688 esac
1689
1690 # Default to using --with-stabs for certain targets.
1691 if test x${with_stabs} = x ; then
1692   case "${target}" in
1693   mips*-*-irix[[56]]*)
1694     ;;
1695   mips*-*-* | alpha*-*-osf*)
1696     with_stabs=yes;
1697     extra_host_args="${extra_host_args} --with-stabs"
1698     ;;
1699   esac
1700 fi
1701
1702 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1703 # them automatically.
1704 case "${host}" in
1705   hppa*64*-*-hpux11*)
1706     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1707     ;;
1708 esac
1709
1710 # Some systems (e.g., one of the i386-aix systems the gas testers are
1711 # using) don't handle "\$" correctly, so don't use it here.
1712 tooldir='${exec_prefix}'/${target_alias}
1713 build_tooldir=${tooldir}
1714
1715 # Create a .gdbinit file which runs the one in srcdir
1716 # and tells GDB to look there for source files.
1717
1718 if test -r ${srcdir}/.gdbinit ; then
1719   case ${srcdir} in
1720     .) ;;
1721     *) cat > ./.gdbinit <<EOF
1722 # ${NO_EDIT}
1723 dir ${srcdir}
1724 dir .
1725 source ${srcdir}/.gdbinit
1726 EOF
1727     ;;
1728   esac
1729 fi
1730
1731 # Make sure that the compiler is able to generate an executable.  If it
1732 # can't, we are probably in trouble.  We don't care whether we can run the
1733 # executable--we might be using a cross compiler--we only care whether it
1734 # can be created.  At this point the main configure script has set CC.
1735 we_are_ok=no
1736 echo "int main () { return 0; }" > conftest.c
1737 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1738 if test $? = 0 ; then
1739   if test -s conftest || test -s conftest.exe ; then
1740     we_are_ok=yes
1741   fi
1742 fi
1743 case $we_are_ok in
1744   no)
1745     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1746     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1747     rm -f conftest*
1748     exit 1
1749     ;;
1750 esac
1751 rm -f conftest*
1752
1753 # The Solaris /usr/ucb/cc compiler does not appear to work.
1754 case "${host}" in
1755   sparc-sun-solaris2*)
1756       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1757       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1758           could_use=
1759           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1760           if test -d /opt/cygnus/bin ; then
1761               if test "$could_use" = "" ; then
1762                   could_use="/opt/cygnus/bin"
1763               else
1764                   could_use="$could_use or /opt/cygnus/bin"
1765               fi
1766           fi
1767         if test "$could_use" = "" ; then
1768             echo "Warning: compilation may fail because you're using"
1769             echo "/usr/ucb/cc.  You should change your PATH or CC "
1770             echo "variable and rerun configure."
1771         else
1772             echo "Warning: compilation may fail because you're using"
1773             echo "/usr/ucb/cc, when you should use the C compiler from"
1774             echo "$could_use.  You should change your"
1775             echo "PATH or CC variable and rerun configure."
1776         fi
1777       fi
1778   ;;
1779 esac
1780
1781 case "${host}" in
1782   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1783   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1784   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1785 esac
1786
1787 # Record target_configdirs and the configure arguments for target and
1788 # build configuration in Makefile.
1789 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1790 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1791
1792 # Determine whether gdb needs tk/tcl or not.
1793 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1794 # and in that case we want gdb to be built without tk.  Ugh!
1795 # In fact I believe gdb is the *only* package directly dependent on tk,
1796 # so we should be able to put the 'maybe's in unconditionally and
1797 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1798 # 100% sure that that's safe though.
1799
1800 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1801 case "$enable_gdbtk" in
1802   no)
1803     GDB_TK="" ;;
1804   yes)
1805     GDB_TK="${gdb_tk}" ;;
1806   *)
1807     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1808     # distro.  Eventually someone will fix this and move Insight, nee
1809     # gdbtk to a separate directory.
1810     if test -d ${srcdir}/gdb/gdbtk ; then
1811       GDB_TK="${gdb_tk}"
1812     else
1813       GDB_TK=""
1814     fi
1815     ;;
1816 esac
1817 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1818 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1819
1820 # Strip out unwanted targets.
1821
1822 # While at that, we remove Makefiles if we were started for recursive
1823 # configuration, so that the top-level Makefile reconfigures them,
1824 # like we used to do when configure itself was recursive.
1825
1826 # Loop over modules.  $extrasub must be used with care, limiting as
1827 # much as possible the usage of range addresses.  That's because autoconf
1828 # splits the sed script to overcome limits in the number of commands,
1829 # and relying on carefully-timed sed passes may turn out to be very hard
1830 # to maintain later.  In this particular case, you just have to be careful
1831 # not to nest @if/@endif pairs, because configure will not warn you at all.
1832
1833 AC_ARG_ENABLE([bootstrap],
1834 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1835 enable_bootstrap=default)
1836
1837 # Issue errors and warnings for invalid/strange bootstrap combinations.
1838 case "$configdirs" in
1839   *gcc*) have_compiler=yes ;;
1840   *) have_compiler=no ;;
1841 esac
1842
1843 case "$have_compiler:$host:$target:$enable_bootstrap" in
1844   *:*:*:no) ;;
1845
1846   # Default behavior.  Enable bootstrap if we have a compiler
1847   # and we are in a native configuration.
1848   yes:$build:$build:default)
1849     enable_bootstrap=yes ;;
1850
1851   *:*:*:default)
1852     enable_bootstrap=no ;;
1853
1854   # We have a compiler and we are in a native configuration, bootstrap is ok
1855   yes:$build:$build:yes)
1856     ;;
1857
1858   # Other configurations, but we have a compiler.  Assume the user knows
1859   # what he's doing.
1860   yes:*:*:yes)
1861     AC_MSG_WARN([trying to bootstrap a cross compiler])
1862     ;;
1863
1864   # No compiler: if they passed --enable-bootstrap explicitly, fail
1865   no:*:*:yes)
1866     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1867
1868   # Fail if wrong command line
1869   *)
1870     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1871     ;;
1872 esac
1873
1874 # Adjust the toplevel makefile according to whether bootstrap was selected.
1875 case "$enable_bootstrap" in
1876   yes)
1877     bootstrap_suffix=bootstrap ;;
1878   no)
1879     bootstrap_suffix=no-bootstrap ;;
1880 esac
1881
1882 for module in ${build_configdirs} ; do
1883   if test -z "${no_recursion}" \
1884      && test -f ${build_subdir}/${module}/Makefile; then
1885     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1886     rm -f ${build_subdir}/${module}/Makefile
1887   fi
1888   extrasub="$extrasub
1889 /^@if build-$module\$/d
1890 /^@endif build-$module\$/d
1891 /^@if build-$module-$bootstrap_suffix\$/d
1892 /^@endif build-$module-$bootstrap_suffix\$/d"
1893 done
1894 for module in ${configdirs} ; do
1895   if test -z "${no_recursion}"; then
1896     for file in stage*-${module}/Makefile ${module}/Makefile; do
1897       if test -f ${file}; then
1898         echo 1>&2 "*** removing ${file} to force reconfigure"
1899         rm -f ${file}
1900       fi
1901     done
1902   fi
1903   extrasub="$extrasub
1904 /^@if $module\$/d
1905 /^@endif $module\$/d
1906 /^@if $module-$bootstrap_suffix\$/d
1907 /^@endif $module-$bootstrap_suffix\$/d"
1908 done
1909 for module in ${target_configdirs} ; do
1910   if test -z "${no_recursion}" \
1911      && test -f ${target_subdir}/${module}/Makefile; then
1912     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1913     rm -f ${target_subdir}/${module}/Makefile
1914   fi
1915   extrasub="$extrasub
1916 /^@if target-$module\$/d
1917 /^@endif target-$module\$/d
1918 /^@if target-$module-$bootstrap_suffix\$/d
1919 /^@endif target-$module-$bootstrap_suffix\$/d"
1920 done
1921
1922 extrasub="$extrasub
1923 /^@if /,/^@endif /d"
1924
1925 # Create the serialization dependencies.  This uses a temporary file.
1926
1927 AC_ARG_ENABLE([serial-configure],
1928 [  --enable-serial-[{host,target,build}-]configure
1929                           Force sequential configuration of
1930                           sub-packages for the host, target or build
1931                           machine, or all sub-packages])
1932
1933 case ${enable_serial_configure} in
1934   yes)
1935     enable_serial_build_configure=yes
1936     enable_serial_host_configure=yes
1937     enable_serial_target_configure=yes
1938     ;;
1939 esac
1940
1941 # These force 'configure's to be done one at a time, to avoid problems
1942 # with contention over a shared config.cache.
1943 rm -f serdep.tmp
1944 echo '# serdep.tmp' > serdep.tmp
1945 olditem=
1946 test "x${enable_serial_build_configure}" = xyes &&
1947 for item in ${build_configdirs} ; do
1948   case ${olditem} in
1949     "") ;;
1950     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1951   esac
1952   olditem=${item}
1953 done
1954 olditem=
1955 test "x${enable_serial_host_configure}" = xyes &&
1956 for item in ${configdirs} ; do
1957   case ${olditem} in
1958     "") ;;
1959     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1960   esac
1961   olditem=${item}
1962 done
1963 olditem=
1964 test "x${enable_serial_target_configure}" = xyes &&
1965 for item in ${target_configdirs} ; do
1966   case ${olditem} in
1967     "") ;;
1968     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1969   esac
1970   olditem=${item}
1971 done
1972 serialization_dependencies=serdep.tmp
1973 AC_SUBST_FILE(serialization_dependencies)
1974
1975 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1976 # target and nonopt.  These are the ones we might not want to pass
1977 # down to subconfigures.  Also strip program-prefix, program-suffix,
1978 # and program-transform-name, so that we can pass down a consistent
1979 # program-transform-name.  If autoconf has put single quotes around
1980 # any of these arguments (because they contain shell metacharacters)
1981 # then this will fail; in practice this only happens for
1982 # --program-transform-name, so be sure to override --program-transform-name
1983 # at the end of the argument list.
1984 # These will be expanded by make, so quote '$'.
1985 cat <<\EOF_SED > conftestsed
1986 s/ --no[[^ ]]*/ /g
1987 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1988 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1989 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1990 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1991 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1992 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1993 s/ -cache-file[[= ]][[^ ]]*//g
1994 s/ -srcdir[[= ]][[^ ]]*//g
1995 s/ -host[[= ]][[^ ]]*//g
1996 s/ -build[[= ]][[^ ]]*//g
1997 s/ -target[[= ]][[^ ]]*//g
1998 s/ -program-prefix[[= ]][[^ ]]*//g
1999 s/ -program-suffix[[= ]][[^ ]]*//g
2000 s/ -program-transform-name[[= ]][[^ ]]*//g
2001 s/ [[^' -][^ ]*] / /
2002 s/^ *//;s/ *$//
2003 s,\$,$$,g
2004 EOF_SED
2005 sed -f conftestsed <<EOF_SED > conftestsed.out
2006  ${ac_configure_args}
2007 EOF_SED
2008 baseargs=`cat conftestsed.out`
2009 rm -f conftestsed conftestsed.out
2010
2011 # Add in --program-transform-name, after --program-prefix and
2012 # --program-suffix have been applied to it.  Autoconf has already
2013 # doubled dollar signs and backslashes in program_transform_name; we want
2014 # the backslashes un-doubled, and then the entire thing wrapped in single
2015 # quotes, because this will be expanded first by make and then by the shell.
2016 # Also, because we want to override the logic in subdir configure scripts to
2017 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2018 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2019 ${program_transform_name}
2020 EOF_SED
2021 gcc_transform_name=`cat conftestsed.out`
2022 rm -f conftestsed.out
2023 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2024
2025 # For the build-side libraries, we just need to pretend we're native,
2026 # and not use the same cache file.  Multilibs are neither needed nor
2027 # desired.
2028 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
2029
2030 # For host modules, accept cache file option, or specification as blank.
2031 case "${cache_file}" in
2032 "") # empty
2033   cache_file_option="" ;;
2034 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2035   cache_file_option="--cache-file=${cache_file}" ;;
2036 *) # relative path
2037   cache_file_option="--cache-file=../${cache_file}" ;;
2038 esac
2039
2040 # Host dirs don't like to share a cache file either, horribly enough.
2041 # This seems to be due to autoconf 2.5x stupidity.
2042 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
2043
2044 target_configargs=${baseargs}
2045
2046 # Passing a --with-cross-host argument lets the target libraries know
2047 # whether they are being built with a cross-compiler or being built
2048 # native.  However, it would be better to use other mechanisms to make the
2049 # sorts of decisions they want to make on this basis.  Please consider
2050 # this option to be deprecated.  FIXME.
2051 if test x${is_cross_compiler} = xyes ; then
2052   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2053 fi
2054
2055 # Default to --enable-multilib.
2056 if test x${enable_multilib} = x ; then
2057   target_configargs="--enable-multilib ${target_configargs}"
2058 fi
2059
2060 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2061 # changed from the earlier setting of with_newlib.
2062 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2063   target_configargs="--with-newlib ${target_configargs}"
2064 fi
2065
2066 # Different target subdirs use different values of certain variables
2067 # (notably CXX).  Worse, multilibs use *lots* of different values.
2068 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2069 # it doesn't automatically accept command-line overrides of them.
2070 # This means it's not safe for target subdirs to share a cache file,
2071 # which is disgusting, but there you have it.  Hopefully this can be
2072 # fixed in future.  It's still worthwhile to use a cache file for each
2073 # directory.  I think.
2074
2075 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2076 # We need to pass --target, as newer autoconf's requires consistency
2077 # for target_alias and gcc doesn't manage it consistently.
2078 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2079
2080 FLAGS_FOR_TARGET=
2081 case " $target_configdirs " in
2082  *" newlib "*)
2083   case " $target_configargs " in
2084   *" --with-newlib "*)
2085    case "$target" in
2086    *-cygwin*)
2087      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' ;;
2088    esac
2089
2090    # If we're not building GCC, don't discard standard headers.
2091    if test -d ${srcdir}/gcc; then
2092      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2093
2094      if test "${build}" != "${host}"; then
2095        # On Canadian crosses, CC_FOR_TARGET will have already been set
2096        # by `configure', so we won't have an opportunity to add -Bgcc/
2097        # to it.  This is right: we don't want to search that directory
2098        # for binaries, but we want the header files in there, so add
2099        # them explicitly.
2100        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2101
2102        # Someone might think of using the pre-installed headers on
2103        # Canadian crosses, in case the installed compiler is not fully
2104        # compatible with the compiler being built.  In this case, it
2105        # would be better to flag an error than risking having
2106        # incompatible object files being constructed.  We can't
2107        # guarantee that an error will be flagged, but let's hope the
2108        # compiler will do it, when presented with incompatible header
2109        # files.
2110      fi
2111    fi
2112
2113    case "${target}-${is_cross_compiler}" in
2114    i[[3456789]]86-*-linux*-no)
2115       # Here host == target, so we don't need to build gcc,
2116       # so we don't want to discard standard headers.
2117       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2118       ;;
2119    *)
2120       # If we're building newlib, use its generic headers last, but search
2121       # for any libc-related directories first (so make it the last -B
2122       # switch).
2123       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2124       ;;
2125    esac
2126    ;;
2127   esac
2128   ;;
2129 esac
2130 case "$target" in
2131 *-mingw*)
2132   # Can't be handled as Cygwin above since Mingw does not use newlib.
2133   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include' ;;
2134 esac
2135
2136 # Allow the user to override the flags for
2137 # our build compiler if desired.
2138 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2139
2140 # On Canadian crosses, we'll be searching the right directories for
2141 # the previously-installed cross compiler, so don't bother to add
2142 # flags for directories within the install tree of the compiler
2143 # being built; programs in there won't even run.
2144 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2145   # Search for pre-installed headers if nothing else fits.
2146   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2147 fi
2148
2149 if test "x${use_gnu_ld}" = x &&
2150    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2151   # Arrange for us to find uninstalled linker scripts.
2152   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2153 fi
2154
2155 # Search for other target-specific linker scripts and such.
2156 case "${target}" in
2157   m32c-*-* )
2158     if test -d ${srcdir}/libgloss/m32c; then
2159       # This is for crt0.o
2160       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2161       # This is for r8c.ld
2162       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2163       # This is for libnosys.a
2164       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2165     fi
2166     ;;
2167 esac
2168
2169 # Makefile fragments.
2170 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2171 do
2172   eval fragval=\$$frag
2173   if test $fragval != /dev/null; then
2174     eval $frag=${srcdir}/$fragval
2175   fi
2176 done
2177 AC_SUBST_FILE(host_makefile_frag)
2178 AC_SUBST_FILE(target_makefile_frag)
2179 AC_SUBST_FILE(alphaieee_frag)
2180 AC_SUBST_FILE(ospace_frag)
2181
2182 # Miscellanea: directories, flags, etc.
2183 AC_SUBST(RPATH_ENVVAR)
2184 AC_SUBST(tooldir)
2185 AC_SUBST(build_tooldir)
2186 AC_SUBST(CONFIGURE_GDB_TK)
2187 AC_SUBST(GDB_TK)
2188 AC_SUBST(INSTALL_GDB_TK)
2189
2190 # Build module lists & subconfigure args.
2191 AC_SUBST(build_configargs)
2192 AC_SUBST(build_configdirs)
2193
2194 # Host module lists & subconfigure args.
2195 AC_SUBST(host_configargs)
2196 AC_SUBST(configdirs)
2197
2198 # Target module lists & subconfigure args.
2199 AC_SUBST(target_configargs)
2200
2201
2202 # Build tools.
2203 AC_SUBST(CC_FOR_BUILD)
2204 AC_SUBST(config_shell)
2205
2206 # Generate default definitions for YACC, M4, LEX and other programs that run
2207 # on the build machine.  These are used if the Makefile can't locate these
2208 # programs in objdir.
2209 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2210
2211 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2212 case " $build_configdirs " in
2213   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2214   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2215 esac
2216
2217 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2218 case " $build_configdirs " in
2219   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2220 esac
2221
2222 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2223 case " $build_configdirs " in
2224   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2225 esac
2226
2227 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2228 case " $build_configdirs " in
2229   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2230   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2231 esac
2232
2233 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2234 case " $build_configdirs " in
2235   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2236 esac
2237
2238 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2239 case " $build_configdirs " in
2240   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2241   *)
2242 changequote(,)
2243     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2244     # higher, else we use the "missing" dummy.
2245     if ${MAKEINFO} --version \
2246        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2247       :
2248     else
2249       MAKEINFO="$MISSING makeinfo"
2250     fi
2251     ;;
2252 changequote([,])
2253 esac
2254
2255 # FIXME: expect and dejagnu may become build tools?
2256
2257 AC_CHECK_PROGS(EXPECT, expect, expect)
2258 case " $configdirs " in
2259   *" expect "*)
2260     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2261     ;;
2262 esac
2263
2264 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2265 case " $configdirs " in
2266   *" dejagnu "*)
2267     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2268     ;;
2269 esac
2270
2271
2272 # Host tools.
2273 NCN_STRICT_CHECK_TOOLS(AR, ar)
2274 NCN_STRICT_CHECK_TOOLS(AS, as)
2275 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2276 NCN_STRICT_CHECK_TOOLS(LD, ld)
2277 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2278 NCN_STRICT_CHECK_TOOLS(NM, nm)
2279 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2280 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2281 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2282 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2283 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2284 AC_SUBST(CC)
2285 AC_SUBST(CXX)
2286 AC_SUBST(CFLAGS)
2287 AC_SUBST(CFLAGS_FOR_BUILD)
2288 AC_SUBST(CXXFLAGS)
2289
2290 # Target tools.
2291 AC_ARG_WITH([build-time-tools],
2292   [  --with-build-time-tools=path
2293                           use given path to find target tools during the build],
2294   [case x"$withval" in
2295      x/*) ;;
2296      *)
2297        with_build_time_tools=
2298        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2299        ;;
2300    esac],
2301   [with_build_time_tools=])
2302
2303 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2304 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2305 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2306 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2307 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2308
2309 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2310 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2311 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2312 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2313 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2314 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2315 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2316 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2317 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2318 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2319
2320 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2321
2322 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2323 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2324 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2325 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2326                 [gcc/g++ -B$$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],
2327                 c++)
2328 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2329                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2330                 c++)
2331 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2332 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2333 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2334                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2335 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2336                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2337 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2338 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2339 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2340 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2341 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2342 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2343 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2344
2345 AC_SUBST(FLAGS_FOR_TARGET)
2346 AC_SUBST(RAW_CXX_FOR_TARGET)
2347
2348 # Certain tools may need extra flags.
2349 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2350 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2351 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2352
2353 # When building target libraries, except in a Canadian cross, we use
2354 # the same toolchain as the compiler we just built.
2355 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2356 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2357 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2358 if test $host = $build; then
2359   case " $configdirs " in
2360     *" gcc "*)
2361       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2362       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2363       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2364       ;;
2365   esac
2366 fi
2367
2368 AC_SUBST(COMPILER_AS_FOR_TARGET)
2369 AC_SUBST(COMPILER_LD_FOR_TARGET)
2370 AC_SUBST(COMPILER_NM_FOR_TARGET)
2371
2372 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2373 AC_ARG_ENABLE(maintainer-mode,
2374 [  --enable-maintainer-mode enable make rules and dependencies not useful
2375                           (and sometimes confusing) to the casual installer],
2376       USE_MAINTAINER_MODE=$enableval,
2377       USE_MAINTAINER_MODE=no)
2378 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2379 AC_SUBST(MAINTAINER_MODE_TRUE)
2380 AC_SUBST(MAINTAINER_MODE_FALSE)
2381 if test "$USE_MAINTAINER_MODE" = yes; then
2382   MAINTAINER_MODE_TRUE=
2383   MAINTAINER_MODE_FALSE='#'
2384 else
2385   MAINTAINER_MODE_TRUE='#'
2386   MAINTAINER_MODE_FALSE=
2387 fi
2388 MAINT=$MAINTAINER_MODE_TRUE
2389 AC_SUBST(MAINT)dnl
2390
2391 # ---------------------
2392 # GCC bootstrap support
2393 # ---------------------
2394
2395 # Stage specific cflags for build.
2396 stage1_cflags="-g"
2397 case $build in
2398   vax-*-*)
2399     case ${GCC} in
2400       yes) stage1_cflags="-g -Wa,-J" ;;
2401       *) stage1_cflags="-g -J" ;;
2402     esac ;;
2403   powerpc-*-darwin*)
2404     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2405     # sources; use -no-cpp-precomp to get to GNU cpp.
2406     # Apple's GCC has bugs in designated initializer handling, so disable
2407     # that too.
2408     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2409     ;;
2410 esac
2411
2412 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
2413 if test "$GCC" = yes; then
2414   saved_CFLAGS="$CFLAGS"
2415
2416   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
2417   CFLAGS="$CFLAGS -fkeep-inline-functions"
2418   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
2419   AC_TRY_COMPILE(,,
2420     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
2421     [AC_MSG_RESULT([no])])
2422
2423   CFLAGS="$saved_CFLAGS"
2424 fi
2425
2426 AC_SUBST(stage1_cflags)
2427
2428 # Enable -Werror in bootstrap stage2 and later.
2429 # Change the default to "no" on release branches.
2430 AC_ARG_ENABLE(werror,
2431 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2432 [enable_werror=yes])
2433 case ${enable_werror} in
2434   yes) stage2_werror_flag="--enable-werror-always" ;;
2435   *) stage2_werror_flag="" ;;
2436 esac
2437 AC_SUBST(stage2_werror_flag)
2438
2439 # Flags needed to enable html installing and building
2440 AC_ARG_WITH(datarootdir,
2441 [  --with-datarootdir   Use datarootdir as the data root directory.],
2442 [datarootdir="\${prefix}/${withval}"],
2443 [datarootdir="\${prefix}/share"])
2444
2445 AC_ARG_WITH(docdir,
2446 [  --with-docdir        Install documentation in this directory.],
2447 [docdir="\${prefix}/${withval}"],
2448 [docdir="\${datarootdir}/doc"])
2449
2450 AC_ARG_WITH(htmldir,
2451 [  --with-htmldir       Install html in this directory.],
2452 [htmldir="\${prefix}/${withval}"],
2453 [htmldir="\${docdir}"])
2454
2455 AC_SUBST(datarootdir)
2456 AC_SUBST(docdir)
2457 AC_SUBST(htmldir)
2458
2459 AC_OUTPUT(Makefile)