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"
 283     ;;
 284   i[[3456789]]86-*-beos*)
 285     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 286     ;;
 287   *-*-cygwin*)
 288     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 289     ;;
 290   *-*-netbsd*)
 291     noconfigdirs="$noconfigdirs rcs"
 292     ;;
 293   ppc*-*-pe)
 294     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 295     ;;
 296   powerpc-*-beos*)
 297     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 298     ;;
 299 esac
 300
 301
 302 AC_ARG_ENABLE(libada,
 303 [  --enable-libada        Builds libada directory],
 304 ENABLE_LIBADA=$enableval,
 305 ENABLE_LIBADA=yes)
 306 if test "${ENABLE_LIBADA}" != "yes" ; then
 307   noconfigdirs="$noconfigdirs gnattools"
 308 fi
 309
 310 AC_ARG_ENABLE(libssp,
 311 [  --enable-libssp        Builds libssp directory],
 312 ENABLE_LIBSSP=$enableval,
 313 ENABLE_LIBSSP=yes)
 314
 315 # Save it here so that, even in case of --enable-libgcj, if the Java
 316 # front-end isn't enabled, we still get libgcj disabled.
 317 libgcj_saved=$libgcj
 318 case $enable_libgcj in
 319 yes)
 320   # If we reset it here, it won't get added to noconfigdirs in the
 321   # target-specific build rules, so it will be forcibly enabled
 322   # (unless the Java language itself isn't enabled).
 323   libgcj=
 324   ;;
 325 no)
 326   # Make sure we get it printed in the list of not supported target libs.
 327   noconfigdirs="$noconfigdirs ${libgcj}"
 328   ;;
 329 esac
 330
 331
 332 # Disable libmudflap on some systems.
 333 if test x$enable_libmudflap = x ; then
 334     case "${target}" in
 335     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 336         # Enable libmudflap by default in GNU and friends.
 337         ;;
 338     *-*-freebsd*)
 339         # Enable libmudflap by default in FreeBSD.
 340         ;;
 341     *)
 342         # Disable it by default everywhere else.
 343         noconfigdirs="$noconfigdirs target-libmudflap"
 344         ;;
 345     esac
 346 fi
 347
 348 # Disable libgomp on non POSIX hosted systems.
 349 if test x$enable_libgomp = x ; then
 350     # Enable libgomp by default on hosted POSIX systems.
 351     case "${target}" in
 352     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 353         ;;
 354     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 355         ;;
 356     *-*-solaris2* | *-*-sysv4* | *-*-irix* | *-*-osf* | *-*-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 target-libgloss gdb"
 511     if test x${is_cross_compiler} != xno ; then
 512       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 513     fi
 514     ;;
 515   c4x-*-* | tic4x-*-*)
 516     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 517     ;;
 518   c54x*-*-* | tic54x-*-*)
 519     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 520     ;;
 521   cris-*-* | crisv32-*-*)
 522     unsupported_languages="$unsupported_languages java"
 523     case "${target}" in
 524       *-*-aout)
 525         unsupported_languages="$unsupported_languages fortran"
 526         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 527       *-*-elf)
 528         unsupported_languages="$unsupported_languages fortran"
 529         noconfigdirs="$noconfigdirs target-boehm-gc";;
 530       *-*-linux*)
 531         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 532       *)
 533         unsupported_languages="$unsupported_languages fortran"
 534         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 535     esac
 536     ;;
 537   crx-*-*)
 538     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 539     ;;
 540   d10v-*-*)
 541     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 542     ;;
 543   d30v-*-*)
 544     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 545     ;;
 546   fr30-*-elf*)
 547     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 548     ;;
 549   frv-*-*)
 550     noconfigdirs="$noconfigdirs ${libgcj}"
 551     ;;
 552   h8300*-*-*)
 553     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 554     ;;
 555   h8500-*-*)
 556     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 557     ;;
 558   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 559     ;;
 560   hppa*64*-*-linux* | parisc*64*-*-linux*)
 561     # In this case, it's because the hppa64-linux target is for
 562     # the kernel only at this point and has no libc, and thus no
 563     # headers, crt*.o, etc., all of which are needed by these.
 564     noconfigdirs="$noconfigdirs target-zlib"
 565     ;;
 566   parisc*-*-linux* | hppa*-*-linux*)
 567     ;;
 568   hppa*-*-*elf* | \
 569   hppa*-*-lites* | \
 570   hppa*-*-openbsd* | \
 571   hppa*64*-*-*)
 572     noconfigdirs="$noconfigdirs ${libgcj}"
 573     ;;
 574   hppa*-hp-hpux11*)
 575     noconfigdirs="$noconfigdirs ld shellutils"
 576     ;;
 577   hppa*-*-*)
 578     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 579     # build on HP-UX 10.20.
 580     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 581     ;;
 582   i960-*-*)
 583     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 584     ;;
 585   ia64*-*-elf*)
 586     # No gdb support yet.
 587     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 588     ;;
 589   ia64*-**-hpux*)
 590     # No gdb or ld support yet.
 591     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 592     ;;
 593   i370-*-opened*)
 594     ;;
 595   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 596     noconfigdirs="$noconfigdirs ${libgcj}"
 597     ;;
 598   i[[3456789]]86-*-linux*)
 599     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 600     # not build java stuff by default.
 601     case "${target}" in
 602       *-*-*libc1*)
 603         noconfigdirs="$noconfigdirs ${libgcj}";;
 604     esac
 605
 606     # This section makes it possible to build newlib natively on linux.
 607     # If we are using a cross compiler then don't configure newlib.
 608     if test x${is_cross_compiler} != xno ; then
 609       noconfigdirs="$noconfigdirs target-newlib"
 610     fi
 611     noconfigdirs="$noconfigdirs target-libgloss"
 612     # If we are not using a cross compiler, do configure newlib.
 613     # Note however, that newlib will only be configured in this situation
 614     # if the --with-newlib option has been given, because otherwise
 615     # 'target-newlib' will appear in skipdirs.
 616     ;;
 617   i[[3456789]]86-*-mingw32*)
 618     target_configdirs="$target_configdirs target-mingw"
 619     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 620
 621     # Can't build gdb for mingw32 if not native.
 622     case "${host}" in
 623       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 624       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 625          ;;
 626     esac
 627     ;;
 628   *-*-cygwin*)
 629     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 630     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 631     # always build newlib if winsup directory is present.
 632     if test -d "$srcdir/winsup"; then
 633       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 634     elif test -d "$srcdir/newlib"; then
 635       echo "Warning: winsup is missing so newlib can't be built."
 636     fi
 637
 638     # Can't build gdb for Cygwin if not native.
 639     case "${host}" in
 640       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 641       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 642          ;;
 643     esac
 644     ;;
 645   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 646   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 647     ;;
 648   i[[3456789]]86-*-pe)
 649     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 650     ;;
 651   i[[3456789]]86-*-sco3.2v5*)
 652     # The linker does not yet know about weak symbols in COFF,
 653     # and is not configured to handle mixed ELF and COFF.
 654     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 655     ;;
 656   i[[3456789]]86-*-sco*)
 657     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 658     ;;
 659   i[[3456789]]86-*-solaris2*)
 660     noconfigdirs="$noconfigdirs target-libgloss"
 661     ;;
 662   i[[3456789]]86-*-sysv4*)
 663     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 664     ;;
 665   i[[3456789]]86-*-beos*)
 666     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 667     ;;
 668   i[[3456789]]86-*-rdos*)
 669     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 670     ;;
 671   m32r-*-*)
 672     noconfigdirs="$noconfigdirs ${libgcj}"
 673     ;;
 674   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 675     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 676     ;;
 677   m68k-*-elf*)
 678     noconfigdirs="$noconfigdirs ${libgcj}"
 679     ;;
 680   m68k-*-coff*)
 681     noconfigdirs="$noconfigdirs ${libgcj}"
 682     ;;
 683   mcore-*-pe*)
 684   # The EPOC C++ environment does not support exceptions or rtti,
 685   # and so building libstdc++-v3 tends not to always work.
 686     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 687     ;;
 688   mmix-*-*)
 689     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 690     unsupported_languages="$unsupported_languages fortran java"
 691     ;;
 692   mn10200-*-*)
 693     noconfigdirs="$noconfigdirs ${libgcj}"
 694     ;;
 695   mn10300-*-*)
 696     noconfigdirs="$noconfigdirs ${libgcj}"
 697     ;;
 698   mt-*-*)
 699     noconfigdirs="$noconfigdirs sim"
 700     ;;
 701   powerpc-*-aix*)
 702     # copied from rs6000-*-* entry
 703     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 704     ;;
 705   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 706     target_configdirs="$target_configdirs target-winsup"
 707     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 708     # always build newlib.
 709     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 710     ;;
 711     # This is temporary until we can link against shared libraries
 712   powerpcle-*-solaris*)
 713     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 714     ;;
 715   powerpc-*-beos*)
 716     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 717     ;;
 718   powerpc-*-eabi)
 719     noconfigdirs="$noconfigdirs ${libgcj}"
 720     ;;
 721   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 722     ;;
 723   rs6000-*-lynxos*)
 724     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 725     ;;
 726   rs6000-*-aix*)
 727     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 728     ;;
 729   rs6000-*-*)
 730     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 731     ;;
 732   m68k-apollo-*)
 733     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 734     ;;
 735   mips*-*-irix5*)
 736     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 737     ;;
 738   mips*-*-irix6*)
 739     # Linking libjava exceeds command-line length limits on at least
 740     # IRIX 6.2, but not on IRIX 6.5.
 741     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 742     # <oldham@codesourcery.com>
 743     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 744     ;;
 745   mips*-dec-bsd*)
 746     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 747     ;;
 748   mips*-*-bsd*)
 749     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 750     ;;
 751   mipstx39-*-*)
 752     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 753     ;;
 754   mips64*-*-linux*)
 755     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 756     ;;
 757   mips*-*-linux*)
 758     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 759     ;;
 760   mips*-*-*)
 761     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 762     ;;
 763   romp-*-*)
 764     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 765     ;;
 766   sh-*-* | sh64-*-*)
 767     case "${host}" in
 768       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 769       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 770       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 771       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 772     esac
 773     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 774     ;;
 775   sparc-*-elf*)
 776     noconfigdirs="$noconfigdirs ${libgcj}"
 777     ;;
 778   sparc64-*-elf*)
 779     noconfigdirs="$noconfigdirs ${libgcj}"
 780     ;;
 781   sparclite-*-*)
 782     noconfigdirs="$noconfigdirs ${libgcj}"
 783     ;;
 784   sparc-*-sunos4*)
 785     noconfigdirs="$noconfigdirs ${libgcj}"
 786     if test x${is_cross_compiler} != xno ; then
 787            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 788     else
 789            use_gnu_ld=no
 790     fi
 791     ;;
 792   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 793     noconfigdirs="$noconfigdirs ${libgcj}"
 794     ;;
 795   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 796     ;;
 797   v810-*-*)
 798     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 799     ;;
 800   v850-*-*)
 801     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 802     ;;
 803   v850e-*-*)
 804     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 805     ;;
 806   v850ea-*-*)
 807     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 808     ;;
 809   vax-*-vms)
 810     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 811     ;;
 812   vax-*-*)
 813     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 814     ;;
 815   xtensa-*-*)
 816     noconfigdirs="$noconfigdirs ${libgcj}"
 817     ;;
 818   ip2k-*-*)
 819     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 820     ;;
 821   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 822     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 823     ;;
 824   *-*-lynxos*)
 825     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 826     ;;
 827   *-*-*)
 828     noconfigdirs="$noconfigdirs ${libgcj}"
 829     ;;
 830 esac
 831
 832 # If we aren't building newlib, then don't build libgloss, since libgloss
 833 # depends upon some newlib header files.
 834 case "${noconfigdirs}" in
 835   *target-libgloss*) ;;
 836   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 837 esac
 838
 839 # Work in distributions that contain no compiler tools, like Autoconf.
 840 tentative_cc=""
 841 host_makefile_frag=/dev/null
 842 if test -d ${srcdir}/config ; then
 843 case "${host}" in
 844   m68k-hp-hpux*)
 845     # Avoid "too much defining" errors from HPUX compiler.
 846     tentative_cc="cc -Wp,-H256000"
 847     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 848     # If it's HP/UX ar, this should be harmless.
 849     RANLIB="ar ts"
 850     ;;
 851   m68k-apollo-sysv*)
 852     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 853     ;;
 854   m68k-apollo-bsd*)
 855     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 856     # chokes on bfd, the compiler won't let you assign integers to enums, and
 857     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 858     # the apollo compiler" (the preferred version of GCC could be called cc,
 859     # or whatever), but I'm not sure leaving CC as cc is any better...
 860     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 861     # Used to have BISON=yacc.
 862     tentative_cc=gcc
 863     ;;
 864   m88k-dg-dgux*)
 865     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 866     ;;
 867   m88k-harris-cxux*)
 868     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 869     tentative_cc="cc -Xa"
 870     host_makefile_frag="config/mh-cxux"
 871     ;;
 872   m88k-motorola-sysv*)
 873     ;;
 874   mips*-dec-ultrix*)
 875     tentative_cc="cc -Wf,-XNg1000"
 876     host_makefile_frag="config/mh-decstation"
 877     ;;
 878   mips*-nec-sysv4*)
 879     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 880     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 881     host_makefile_frag="config/mh-necv4"
 882     ;;
 883   mips*-sgi-irix4*)
 884     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 885     # environment.  Also bump switch table size so that cp-parse will
 886     # compile.  Bump string length limit so linker builds.
 887     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 888     ;;
 889   mips*-*-sysv4*)
 890     host_makefile_frag="config/mh-sysv4"
 891     ;;
 892   mips*-*-sysv*)
 893     # This is for a MIPS running RISC/os 4.52C.
 894
 895     # This is needed for GDB, but needs to be in the top-level make because
 896     # if a library is compiled with the bsd headers and gets linked with the
 897     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 898     # a different size).
 899     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 900     # known except to select the sysv environment.  Could we use /proc instead?
 901     # These "sysv environments" and "bsd environments" often end up being a pain.
 902     #
 903     # This is not part of CFLAGS because perhaps not all C compilers have this
 904     # option.
 905     tentative_cc="cc -systype sysv"
 906     ;;
 907   i370-ibm-opened*)
 908     tentative_cc="c89"
 909     ;;
 910   i[[3456789]]86-*-sysv5*)
 911     host_makefile_frag="config/mh-sysv5"
 912     ;;
 913   i[[3456789]]86-*-dgux*)
 914     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 915     host_makefile_frag="config/mh-dgux386"
 916     ;;
 917   i[[3456789]]86-ncr-sysv4.3*)
 918     # The MetaWare compiler will generate a copyright message unless you
 919     # turn it off by adding the -Hnocopyr flag.
 920     tentative_cc="cc -Hnocopyr"
 921     ;;
 922   i[[3456789]]86-ncr-sysv4*)
 923     # for an NCR 3000 (i486/SVR4) system.
 924     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 925     # This compiler not only emits obnoxious copyright messages every time
 926     # you run it, but it chokes and dies on a whole bunch of GNU source
 927     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 928     tentative_cc="/usr/ccs/ATT/cc"
 929     host_makefile_frag="config/mh-ncr3000"
 930     ;;
 931   i[[3456789]]86-*-sco3.2v5*)
 932     ;;
 933   i[[3456789]]86-*-sco*)
 934     # The native C compiler botches some simple uses of const.  Unfortunately,
 935     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 936     tentative_cc="cc -Dconst="
 937     host_makefile_frag="config/mh-sco"
 938     ;;
 939   i[[3456789]]86-*-udk*)
 940     host_makefile_frag="config/mh-sysv5"
 941     ;;
 942   i[[3456789]]86-*-solaris2*)
 943     host_makefile_frag="config/mh-sysv4"
 944     ;;
 945   i[[3456789]]86-*-msdosdjgpp*)
 946     host_makefile_frag="config/mh-djgpp"
 947     ;;
 948   *-cygwin*)
 949     host_makefile_frag="config/mh-cygwin"
 950     ;;
 951   *-mingw32*)
 952     ;;
 953   *-interix*)
 954     host_makefile_frag="config/mh-interix"
 955     ;;
 956   vax-*-ultrix2*)
 957     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 958     tentative_cc=gcc
 959     ;;
 960   *-*-solaris2*)
 961     host_makefile_frag="config/mh-solaris"
 962     ;;
 963   m68k-sun-sunos*)
 964     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 965     # without overflowing the jump tables (-J says to use a 32 bit table)
 966     tentative_cc="cc -J"
 967     ;;
 968   *-hp-hpux*)
 969     tentative_cc="cc -Wp,-H256000"
 970     ;;
 971   *-*-hiux*)
 972     tentative_cc="cc -Wp,-H256000"
 973     ;;
 974   rs6000-*-lynxos*)
 975     # /bin/cc is less than useful for our purposes.  Always use GCC
 976     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 977     host_makefile_frag="config/mh-lynxrs6k"
 978     ;;
 979   powerpc-*-darwin*)
 980     host_makefile_frag="config/mh-ppc-darwin"
 981     ;;
 982   powerpc-*-aix*)
 983     host_makefile_frag="config/mh-ppc-aix"
 984     ;;
 985   rs6000-*-aix*)
 986     host_makefile_frag="config/mh-ppc-aix"
 987     ;;
 988   *-*-lynxos*)
 989     # /bin/cc is less than useful for our purposes.  Always use GCC
 990     tentative_cc="/bin/gcc"
 991     ;;
 992   *-*-sysv4*)
 993     host_makefile_frag="config/mh-sysv4"
 994     ;;
 995   # This is placed last to prevent interfering with the cases above.
 996   i[[3456789]]86-*-*)
 997     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 998     host_makefile_frag="config/mh-x86omitfp"
 999     ;;
1000 esac
1001 fi
1002
1003 # If we aren't going to be using gcc, see if we can extract a definition
1004 # of CC from the fragment.
1005 # Actually, use the 'pre-extracted' version above.
1006 if test -z "${CC}" && test "${build}" = "${host}" ; then
1007   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1008   found=
1009   for dir in $PATH; do
1010     test -z "$dir" && dir=.
1011     if test -f $dir/gcc; then
1012       found=yes
1013       break
1014     fi
1015   done
1016   IFS="$save_ifs"
1017   if test -z "${found}" && test -n "${tentative_cc}" ; then
1018     CC=$tentative_cc
1019   fi
1020 fi
1021
1022 if test "${build}" != "${host}" ; then
1023   # If we are doing a Canadian Cross, in which the host and build systems
1024   # are not the same, we set reasonable default values for the tools.
1025
1026   CC=${CC-${host_alias}-gcc}
1027   CFLAGS=${CFLAGS-"-g -O2"}
1028   CXX=${CXX-${host_alias}-c++}
1029   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1030   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1031
1032 else
1033   # Set reasonable default values for some tools even if not Canadian.
1034   # Of course, these are different reasonable default values, originally
1035   # specified directly in the Makefile.
1036   # We don't export, so that autoconf can do its job.
1037   # Note that all these settings are above the fragment inclusion point
1038   # in Makefile.in, so can still be overridden by fragments.
1039   # This is all going to change when we autoconfiscate...
1040
1041   CC_FOR_BUILD="\$(CC)"
1042   AC_PROG_CC
1043
1044   # We must set the default linker to the linker used by gcc for the correct
1045   # operation of libtool.  If LD is not defined and we are using gcc, try to
1046   # set the LD default to the ld used by gcc.
1047   if test -z "$LD"; then
1048     if test "$GCC" = yes; then
1049       case $build in
1050       *-*-mingw*)
1051         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1052       *)
1053         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1054       esac
1055       case $gcc_prog_ld in
1056       # Accept absolute paths.
1057       [[\\/]* | [A-Za-z]:[\\/]*)]
1058         LD="$gcc_prog_ld" ;;
1059       esac
1060     fi
1061   fi
1062
1063   CXX=${CXX-"c++"}
1064   CFLAGS=${CFLAGS-"-g"}
1065   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1066 fi
1067
1068 ACX_PROG_GNAT
1069 ACX_PROG_CMP_IGNORE_INITIAL
1070
1071 # Check for GMP and MPFR
1072 gmplibs=
1073 gmpinc=
1074 have_gmp=yes
1075 # Specify a location for mpfr
1076 # check for this first so it ends up on the link line before gmp.
1077 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1078
1079 if test "x$with_mpfr_dir" != x; then
1080   gmpinc="-I$with_mpfr_dir"
1081   gmplibs="$with_mpfr_dir/libmpfr.a"
1082 else
1083   gmplibs="-lmpfr"
1084 fi
1085
1086 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1087
1088 if test "x$with_mpfr" != x; then
1089   gmplibs="-L$with_mpfr/lib $gmplibs"
1090   gmpinc="-I$with_mpfr/include"
1091 fi
1092
1093 # Specify a location for gmp
1094 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1095
1096 if test "x$with_gmp_dir" != x; then
1097   gmpinc="$gmpinc -I$with_gmp_dir"
1098   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1099     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1100   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1101     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1102   fi
1103   # One of the later tests will catch the error if neither library is present.
1104 else
1105   gmplibs="$gmplibs -lgmp"
1106 fi
1107
1108 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1109
1110 if test "x$with_gmp" != x; then
1111   gmplibs="-L$with_gmp/lib $gmplibs"
1112   gmpinc="-I$with_gmp/include $gmpinc"
1113 fi
1114
1115 saved_CFLAGS="$CFLAGS"
1116 CFLAGS="$CFLAGS $gmpinc"
1117 # Check GMP actually works
1118 AC_MSG_CHECKING([for correct version of gmp.h])
1119 AC_TRY_COMPILE([#include "gmp.h"],[
1120 #if __GNU_MP_VERSION < 3
1121 choke me
1122 #endif
1123 ], [AC_MSG_RESULT([yes])],
1124   [AC_MSG_RESULT([no]); have_gmp=no])
1125
1126 if test x"$have_gmp" = xyes; then
1127   AC_MSG_CHECKING([for MPFR])
1128
1129   saved_LIBS="$LIBS"
1130   LIBS="$LIBS $gmplibs"
1131   AC_TRY_LINK([#include <gmp.h>
1132 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1133     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1134   LIBS="$saved_LIBS"
1135 fi
1136 CFLAGS="$saved_CFLAGS"
1137
1138 # Flags needed for both GMP and/or MPFR
1139 AC_SUBST(gmplibs)
1140 AC_SUBST(gmpinc)
1141
1142 # By default, C is the only stage 1 language.
1143 stage1_languages=c
1144 AC_SUBST(stage1_languages)
1145
1146 # Figure out what language subdirectories are present.
1147 # Look if the user specified --enable-languages="..."; if not, use
1148 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1149 # go away some day.
1150 # NB:  embedded tabs in this IF block -- do not untabify
1151 if test -d ${srcdir}/gcc; then
1152   if test x"${enable_languages+set}" != xset; then
1153     if test x"${LANGUAGES+set}" = xset; then
1154       enable_languages="${LANGUAGES}"
1155         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1156     else
1157       enable_languages=all
1158     fi
1159   else
1160     if test x"${enable_languages}" = x ||
1161        test x"${enable_languages}" = xyes;
1162        then
1163       echo configure.in: --enable-languages needs at least one language argument 1>&2
1164       exit 1
1165     fi
1166   fi
1167   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1168
1169   # 'f95' is the old name for the 'fortran' language. We issue a warning
1170   # and make the substitution.
1171   case ,${enable_languages}, in
1172     *,f95,*)
1173       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1174       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1175       ;;
1176   esac
1177
1178   # First scan to see if an enabled language requires some other language.
1179   # We assume that a given config-lang.in will list all the language
1180   # front ends it requires, even if some are required indirectly.
1181   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1182     case ${lang_frag} in
1183       ..) ;;
1184       # The odd quoting in the next line works around
1185       # an apparent bug in bash 1.12 on linux.
1186       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1187       *)
1188         # From the config-lang.in, get $language, $lang_requires
1189         language=
1190         lang_requires=
1191         . ${lang_frag}
1192         for other in ${lang_requires} ; do
1193           case ,${enable_languages}, in
1194             *,$other,*) ;;
1195             *,all,*) ;;
1196             *,$language,*)
1197               echo " \`$other' language required by \`$language'; enabling" 1>&2
1198               enable_languages="${enable_languages},${other}"
1199               ;;
1200           esac
1201         done
1202         ;;
1203     esac
1204   done
1205
1206   new_enable_languages=c
1207   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1208   potential_languages=c
1209
1210   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1211     case ${lang_frag} in
1212       ..) ;;
1213       # The odd quoting in the next line works around
1214       # an apparent bug in bash 1.12 on linux.
1215       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1216       *)
1217         # From the config-lang.in, get $language, $target_libs,
1218         # $lang_dirs, $boot_language, and $build_by_default
1219         language=
1220         target_libs=
1221         lang_dirs=
1222         boot_language=
1223         build_by_default=
1224         need_gmp=
1225         . ${lang_frag}
1226         potential_languages="${potential_languages},${language}"
1227         # This is quite sensitive to the ordering of the case statement arms.
1228         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1229           *::*:*)
1230             echo "${lang_frag} doesn't set \$language." 1>&2
1231             exit 1
1232             ;;
1233           *:ada:no:*)
1234             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1235             add_this_lang=no
1236             ;;
1237           *,${language},*:*:*:*)
1238             # Language was explicitly selected; include it.
1239             add_this_lang=yes
1240             ;;
1241           *,all,*:*:*:no)
1242             # 'all' was selected, but this is not a default language
1243             # so do not include it.
1244             add_this_lang=no
1245             ;;
1246           *,all,*:*:*:*)
1247             # 'all' was selected and this is a default language; include it.
1248             add_this_lang=yes
1249             ;;
1250           *)
1251             add_this_lang=no
1252             ;;
1253         esac
1254
1255         # Disable languages that need GMP if it isn't available.
1256         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1257           *,${language},*:no:yes)
1258             # Specifically requested language; tell them.
1259             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1260             ;;
1261           *:no:yes)
1262             # Silently disable.
1263             add_this_lang=no
1264             ;;
1265         esac
1266
1267         # Disable a language that is unsupported by the target.
1268         case " $unsupported_languages " in
1269           *" $language "*)
1270             add_this_lang=no
1271             ;;
1272         esac
1273
1274         case $add_this_lang in
1275           no)
1276             # Remove language-dependent dirs.
1277             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1278             ;;
1279           *)
1280             new_enable_languages="$new_enable_languages,$language"
1281             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1282             case ${boot_language} in
1283               yes)
1284                 # Add to (comma-separated) list of stage 1 languages.
1285                 stage1_languages="${stage1_languages},${language}"
1286                 ;;
1287             esac
1288             ;;
1289         esac
1290         ;;
1291     esac
1292   done
1293
1294   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1295   if test "x$missing_languages" != x; then
1296     AC_MSG_ERROR([
1297 The following requested languages could not be built: ${missing_languages}
1298 Recognised languages are: ${potential_languages}])
1299   fi
1300
1301   if test "x$new_enable_languages" != "x$enable_languages"; then
1302     echo The following languages will be built: ${new_enable_languages}
1303   fi
1304   enable_languages="$new_enable_languages"
1305   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1306 fi
1307
1308 # Handle --disable-<component> generically.
1309 for dir in $configdirs $build_configdirs $target_configdirs ; do
1310   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1311   if eval test x\${enable_${dirname}} "=" xno ; then
1312     noconfigdirs="$noconfigdirs $dir"
1313   fi
1314 done
1315
1316 # Check for Boehm's garbage collector
1317 AC_ARG_ENABLE(objc-gc,
1318 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
1319                           the GNU Objective-C runtime.],
1320 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1321   *,objc,*:*:yes:*target-boehm-gc*)
1322     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1323     ;;
1324 esac])
1325
1326 # Make sure we only build Boehm's garbage collector if required.
1327 case ,${enable_languages},:${enable_libgcj}:${enable_objc_gc} in
1328   *,objc,*:*:yes)
1329     # Keep target-boehm-gc if requested for Objective-C.
1330     ;;
1331   *,java,*:no:*)
1332     # Remove target-boehm-gc if libgcj has been disabled explicitly.
1333     noconfigdirs="$noconfigdirs target-boehm-gc"
1334     ;;
1335   *,java,*:*:*)
1336     # Keep target-boehm-gc by default for Java.
1337     ;;
1338   *)
1339     # Otherwise remove target-boehm-gc.
1340     noconfigdirs="$noconfigdirs target-boehm-gc"
1341     ;;
1342 esac
1343
1344 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1345 # $build_configdirs and $target_configdirs.
1346 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1347
1348 notsupp=""
1349 for dir in . $skipdirs $noconfigdirs ; do
1350   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1351   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1352     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1353     if test -r $srcdir/$dirname/configure ; then
1354       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1355         true
1356       else
1357         notsupp="$notsupp $dir"
1358       fi
1359     fi
1360   fi
1361   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1362     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1363     if test -r $srcdir/$dirname/configure ; then
1364       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1365         true
1366       else
1367         notsupp="$notsupp $dir"
1368       fi
1369     fi
1370   fi
1371   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1372     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1373     if test -r $srcdir/$dirname/configure ; then
1374       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1375         true
1376       else
1377         notsupp="$notsupp $dir"
1378       fi
1379     fi
1380   fi
1381 done
1382
1383 # Sometimes the tools are distributed with libiberty but with no other
1384 # libraries.  In that case, we don't want to build target-libiberty.
1385 if test -n "${target_configdirs}" ; then
1386   others=
1387   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1388     if test "$i" != "libiberty" ; then
1389       if test -r $srcdir/$i/configure ; then
1390         others=yes;
1391         break;
1392       fi
1393     fi
1394   done
1395   if test -z "${others}" ; then
1396     target_configdirs=
1397   fi
1398 fi
1399
1400 # Quietly strip out all directories which aren't configurable in this tree.
1401 # This relies on all configurable subdirectories being autoconfiscated, which
1402 # is now the case.
1403 build_configdirs_all="$build_configdirs"
1404 build_configdirs=
1405 for i in ${build_configdirs_all} ; do
1406   j=`echo $i | sed -e s/build-//g`
1407   if test -f ${srcdir}/$j/configure ; then
1408     build_configdirs="${build_configdirs} $i"
1409   fi
1410 done
1411
1412 configdirs_all="$configdirs"
1413 configdirs=
1414 for i in ${configdirs_all} ; do
1415   if test -f ${srcdir}/$i/configure ; then
1416     configdirs="${configdirs} $i"
1417   fi
1418 done
1419
1420 target_configdirs_all="$target_configdirs"
1421 target_configdirs=
1422 for i in ${target_configdirs_all} ; do
1423   j=`echo $i | sed -e s/target-//g`
1424   if test -f ${srcdir}/$j/configure ; then
1425     target_configdirs="${target_configdirs} $i"
1426   fi
1427 done
1428
1429 # Produce a warning message for the subdirs we can't configure.
1430 # This isn't especially interesting in the Cygnus tree, but in the individual
1431 # FSF releases, it's important to let people know when their machine isn't
1432 # supported by the one or two programs in a package.
1433
1434 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1435   # If $appdirs is non-empty, at least one of those directories must still
1436   # be configured, or we error out.  (E.g., if the gas release supports a
1437   # specified target in some subdirs but not the gas subdir, we shouldn't
1438   # pretend that all is well.)
1439   if test -n "$appdirs" ; then
1440     for dir in $appdirs ; do
1441       if test -r $dir/Makefile.in ; then
1442         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1443           appdirs=""
1444           break
1445         fi
1446         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1447           appdirs=""
1448           break
1449         fi
1450       fi
1451     done
1452     if test -n "$appdirs" ; then
1453       echo "*** This configuration is not supported by this package." 1>&2
1454       exit 1
1455     fi
1456   fi
1457   # Okay, some application will build, or we don't care to check.  Still
1458   # notify of subdirs not getting built.
1459   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1460   echo "    ${notsupp}" 1>&2
1461   echo "    (Any other directories should still work fine.)" 1>&2
1462 fi
1463
1464 case "$host" in
1465   *msdosdjgpp*)
1466     enable_gdbtk=no ;;
1467 esac
1468
1469 copy_dirs=
1470
1471 AC_ARG_WITH([build-sysroot],
1472   [  --with-build-sysroot=sysroot
1473                           use sysroot as the system root during the build],
1474   [if test x"$withval" != x ; then
1475      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1476    fi],
1477   [SYSROOT_CFLAGS_FOR_TARGET=])
1478 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1479
1480 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1481 # the named directory are copied to $(tooldir)/sys-include.
1482 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1483   if test x${is_cross_compiler} = xno ; then
1484     echo 1>&2 '***' --with-headers is only supported when cross compiling
1485     exit 1
1486   fi
1487   if test x"${with_headers}" != xyes ; then
1488     case "${exec_prefixoption}" in
1489     "") x=${prefix} ;;
1490     *) x=${exec_prefix} ;;
1491     esac
1492     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1493   fi
1494 fi
1495
1496 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1497 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1498 # are permitted.
1499 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1500   if test x${is_cross_compiler} = xno ; then
1501     echo 1>&2 '***' --with-libs is only supported when cross compiling
1502     exit 1
1503   fi
1504   if test x"${with_libs}" != xyes ; then
1505     # Copy the libraries in reverse order, so that files in the first named
1506     # library override files in subsequent libraries.
1507     case "${exec_prefixoption}" in
1508     "") x=${prefix} ;;
1509     *) x=${exec_prefix} ;;
1510     esac
1511     for l in ${with_libs}; do
1512       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1513     done
1514   fi
1515 fi
1516
1517 # Set with_gnu_as and with_gnu_ld as appropriate.
1518 #
1519 # This is done by determining whether or not the appropriate directory
1520 # is available, and by checking whether or not specific configurations
1521 # have requested that this magic not happen.
1522 #
1523 # The command line options always override the explicit settings in
1524 # configure.in, and the settings in configure.in override this magic.
1525 #
1526 # If the default for a toolchain is to use GNU as and ld, and you don't
1527 # want to do that, then you should use the --without-gnu-as and
1528 # --without-gnu-ld options for the configure script.
1529
1530 if test x${use_gnu_as} = x &&
1531    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1532   with_gnu_as=yes
1533   extra_host_args="$extra_host_args --with-gnu-as"
1534 fi
1535
1536 if test x${use_gnu_ld} = x &&
1537    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1538   with_gnu_ld=yes
1539   extra_host_args="$extra_host_args --with-gnu-ld"
1540 fi
1541
1542 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1543 # can detect this case.
1544
1545 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1546   with_newlib=yes
1547   extra_host_args="$extra_host_args --with-newlib"
1548 fi
1549
1550 # Handle ${copy_dirs}
1551 set fnord ${copy_dirs}
1552 shift
1553 while test $# != 0 ; do
1554   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1555     :
1556   else
1557     echo Copying $1 to $2
1558
1559     # Use the install script to create the directory and all required
1560     # parent directories.
1561     if test -d $2 ; then
1562       :
1563     else
1564       echo >config.temp
1565       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1566     fi
1567
1568     # Copy the directory, assuming we have tar.
1569     # FIXME: Should we use B in the second tar?  Not all systems support it.
1570     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1571
1572     # It is the responsibility of the user to correctly adjust all
1573     # symlinks.  If somebody can figure out how to handle them correctly
1574     # here, feel free to add the code.
1575
1576     echo $1 > $2/COPIED
1577   fi
1578   shift; shift
1579 done
1580
1581 # Determine a target-dependent exec_prefix that the installed
1582 # gcc will search in.  Keep this list sorted by triplet, with
1583 # the *-*-osname triplets last.
1584 md_exec_prefix=
1585 case "${target}" in
1586   alpha*-*-*vms*)
1587     md_exec_prefix=/gnu/lib/gcc-lib
1588     ;;
1589   i[34567]86-pc-msdosdjgpp*)
1590     md_exec_prefix=/dev/env/DJDIR/bin
1591     ;;
1592   i[34567]86-*-sco3.2v5*)
1593     if test $with_gnu_as = yes; then
1594       md_exec_prefix=/usr/gnu/bin
1595     else
1596       md_exec_prefix=/usr/ccs/bin/elf
1597     fi
1598     ;;
1599
1600   mn10300-*-* | \
1601   powerpc-*-chorusos* | \
1602   powerpc*-*-eabi* | \
1603   powerpc*-*-sysv* | \
1604   powerpc*-*-kaos* | \
1605   s390x-ibm-tpf*)
1606     md_exec_prefix=/usr/ccs/bin
1607     ;;
1608   sparc64-*-elf*)
1609     ;;
1610   v850*-*-*)
1611     md_exec_prefix=/usr/ccs/bin
1612     ;;
1613   xtensa-*-elf*)
1614     ;;
1615
1616   *-*-beos* | \
1617   *-*-elf* | \
1618   *-*-hpux* | \
1619   *-*-netware* | \
1620   *-*-nto-qnx* | \
1621   *-*-rtems* | \
1622   *-*-solaris2* | \
1623   *-*-sysv[45]* | \
1624   *-*-vxworks* | \
1625   *-wrs-windiss)
1626     md_exec_prefix=/usr/ccs/bin
1627     ;;
1628 esac
1629
1630 extra_arflags_for_target=
1631 extra_nmflags_for_target=
1632 extra_ranlibflags_for_target=
1633 target_makefile_frag=/dev/null
1634 case "${target}" in
1635   *-*-netware*)
1636     target_makefile_frag="config/mt-netware"
1637     ;;
1638   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1639     target_makefile_frag="config/mt-gnu"
1640     ;;
1641   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1642     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1643     # commands to handle both 32-bit and 64-bit objects.  These flags are
1644     # harmless if we're using GNU nm or ar.
1645     extra_arflags_for_target=" -X32_64"
1646     extra_nmflags_for_target=" -B -X32_64"
1647     ;;
1648   *-*-darwin*)
1649     # ranlib from Darwin requires the -c flag to look at common symbols.
1650     extra_ranlibflags_for_target=" -c"
1651     ;;
1652   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1653     target_makefile_frag="config/mt-wince"
1654     ;;
1655 esac
1656
1657 alphaieee_frag=/dev/null
1658 case $target in
1659   alpha*-*-*)
1660     # This just makes sure to use the -mieee option to build target libs.
1661     # This should probably be set individually by each library.
1662     alphaieee_frag="config/mt-alphaieee"
1663     ;;
1664 esac
1665
1666 # If --enable-target-optspace always use -Os instead of -O2 to build
1667 # the target libraries, similarly if it is not specified, use -Os
1668 # on selected platforms.
1669 ospace_frag=/dev/null
1670 case "${enable_target_optspace}:${target}" in
1671   yes:*)
1672     ospace_frag="config/mt-ospace"
1673     ;;
1674   :d30v-*)
1675     ospace_frag="config/mt-d30v"
1676     ;;
1677   :m32r-* | :d10v-* | :fr30-*)
1678     ospace_frag="config/mt-ospace"
1679     ;;
1680   no:* | :*)
1681     ;;
1682   *)
1683     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1684     ;;
1685 esac
1686
1687 # Default to using --with-stabs for certain targets.
1688 if test x${with_stabs} = x ; then
1689   case "${target}" in
1690   mips*-*-irix[[56]]*)
1691     ;;
1692   mips*-*-* | alpha*-*-osf*)
1693     with_stabs=yes;
1694     extra_host_args="${extra_host_args} --with-stabs"
1695     ;;
1696   esac
1697 fi
1698
1699 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1700 # them automatically.
1701 case "${host}" in
1702   hppa*64*-*-hpux11*)
1703     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1704     ;;
1705 esac
1706
1707 # Some systems (e.g., one of the i386-aix systems the gas testers are
1708 # using) don't handle "\$" correctly, so don't use it here.
1709 tooldir='${exec_prefix}'/${target_alias}
1710 build_tooldir=${tooldir}
1711
1712 # Create a .gdbinit file which runs the one in srcdir
1713 # and tells GDB to look there for source files.
1714
1715 if test -r ${srcdir}/.gdbinit ; then
1716   case ${srcdir} in
1717     .) ;;
1718     *) cat > ./.gdbinit <<EOF
1719 # ${NO_EDIT}
1720 dir ${srcdir}
1721 dir .
1722 source ${srcdir}/.gdbinit
1723 EOF
1724     ;;
1725   esac
1726 fi
1727
1728 # Make sure that the compiler is able to generate an executable.  If it
1729 # can't, we are probably in trouble.  We don't care whether we can run the
1730 # executable--we might be using a cross compiler--we only care whether it
1731 # can be created.  At this point the main configure script has set CC.
1732 we_are_ok=no
1733 echo "int main () { return 0; }" > conftest.c
1734 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1735 if test $? = 0 ; then
1736   if test -s conftest || test -s conftest.exe ; then
1737     we_are_ok=yes
1738   fi
1739 fi
1740 case $we_are_ok in
1741   no)
1742     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1743     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1744     rm -f conftest*
1745     exit 1
1746     ;;
1747 esac
1748 rm -f conftest*
1749
1750 # The Solaris /usr/ucb/cc compiler does not appear to work.
1751 case "${host}" in
1752   sparc-sun-solaris2*)
1753       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1754       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1755           could_use=
1756           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1757           if test -d /opt/cygnus/bin ; then
1758               if test "$could_use" = "" ; then
1759                   could_use="/opt/cygnus/bin"
1760               else
1761                   could_use="$could_use or /opt/cygnus/bin"
1762               fi
1763           fi
1764         if test "$could_use" = "" ; then
1765             echo "Warning: compilation may fail because you're using"
1766             echo "/usr/ucb/cc.  You should change your PATH or CC "
1767             echo "variable and rerun configure."
1768         else
1769             echo "Warning: compilation may fail because you're using"
1770             echo "/usr/ucb/cc, when you should use the C compiler from"
1771             echo "$could_use.  You should change your"
1772             echo "PATH or CC variable and rerun configure."
1773         fi
1774       fi
1775   ;;
1776 esac
1777
1778 case "${host}" in
1779   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1780   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1781   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1782 esac
1783
1784 # Record target_configdirs and the configure arguments for target and
1785 # build configuration in Makefile.
1786 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1787 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1788
1789 # Determine whether gdb needs tk/tcl or not.
1790 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1791 # and in that case we want gdb to be built without tk.  Ugh!
1792 # In fact I believe gdb is the *only* package directly dependent on tk,
1793 # so we should be able to put the 'maybe's in unconditionally and
1794 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1795 # 100% sure that that's safe though.
1796
1797 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1798 case "$enable_gdbtk" in
1799   no)
1800     GDB_TK="" ;;
1801   yes)
1802     GDB_TK="${gdb_tk}" ;;
1803   *)
1804     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1805     # distro.  Eventually someone will fix this and move Insight, nee
1806     # gdbtk to a separate directory.
1807     if test -d ${srcdir}/gdb/gdbtk ; then
1808       GDB_TK="${gdb_tk}"
1809     else
1810       GDB_TK=""
1811     fi
1812     ;;
1813 esac
1814 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1815 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1816
1817 # Strip out unwanted targets.
1818
1819 # While at that, we remove Makefiles if we were started for recursive
1820 # configuration, so that the top-level Makefile reconfigures them,
1821 # like we used to do when configure itself was recursive.
1822
1823 # Loop over modules.  $extrasub must be used with care, limiting as
1824 # much as possible the usage of range addresses.  That's because autoconf
1825 # splits the sed script to overcome limits in the number of commands,
1826 # and relying on carefully-timed sed passes may turn out to be very hard
1827 # to maintain later.  In this particular case, you just have to be careful
1828 # not to nest @if/@endif pairs, because configure will not warn you at all.
1829
1830 AC_ARG_ENABLE([bootstrap],
1831 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1832 enable_bootstrap=default)
1833
1834 # Issue errors and warnings for invalid/strange bootstrap combinations.
1835 case "$configdirs" in
1836   *gcc*) have_compiler=yes ;;
1837   *) have_compiler=no ;;
1838 esac
1839
1840 case "$have_compiler:$host:$target:$enable_bootstrap" in
1841   *:*:*:no) ;;
1842
1843   # Default behavior.  Enable bootstrap if we have a compiler
1844   # and we are in a native configuration.
1845   yes:$build:$build:default)
1846     enable_bootstrap=yes ;;
1847
1848   *:*:*:default)
1849     enable_bootstrap=no ;;
1850
1851   # We have a compiler and we are in a native configuration, bootstrap is ok
1852   yes:$build:$build:yes)
1853     ;;
1854
1855   # Other configurations, but we have a compiler.  Assume the user knows
1856   # what he's doing.
1857   yes:*:*:yes)
1858     AC_MSG_WARN([trying to bootstrap a cross compiler])
1859     ;;
1860
1861   # No compiler: if they passed --enable-bootstrap explicitly, fail
1862   no:*:*:yes)
1863     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1864
1865   # Fail if wrong command line
1866   *)
1867     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1868     ;;
1869 esac
1870
1871 # Adjust the toplevel makefile according to whether bootstrap was selected.
1872 case "$enable_bootstrap" in
1873   yes)
1874     bootstrap_suffix=bootstrap ;;
1875   no)
1876     bootstrap_suffix=no-bootstrap ;;
1877 esac
1878
1879 for module in ${build_configdirs} ; do
1880   if test -z "${no_recursion}" \
1881      && test -f ${build_subdir}/${module}/Makefile; then
1882     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1883     rm -f ${build_subdir}/${module}/Makefile
1884   fi
1885   extrasub="$extrasub
1886 /^@if build-$module\$/d
1887 /^@endif build-$module\$/d
1888 /^@if build-$module-$bootstrap_suffix\$/d
1889 /^@endif build-$module-$bootstrap_suffix\$/d"
1890 done
1891 for module in ${configdirs} ; do
1892   if test -z "${no_recursion}"; then
1893     for file in stage*-${module}/Makefile ${module}/Makefile; do
1894       if test -f ${file}; then
1895         echo 1>&2 "*** removing ${file} to force reconfigure"
1896         rm -f ${file}
1897       fi
1898     done
1899   fi
1900   extrasub="$extrasub
1901 /^@if $module\$/d
1902 /^@endif $module\$/d
1903 /^@if $module-$bootstrap_suffix\$/d
1904 /^@endif $module-$bootstrap_suffix\$/d"
1905 done
1906 for module in ${target_configdirs} ; do
1907   if test -z "${no_recursion}" \
1908      && test -f ${target_subdir}/${module}/Makefile; then
1909     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1910     rm -f ${target_subdir}/${module}/Makefile
1911   fi
1912   extrasub="$extrasub
1913 /^@if target-$module\$/d
1914 /^@endif target-$module\$/d
1915 /^@if target-$module-$bootstrap_suffix\$/d
1916 /^@endif target-$module-$bootstrap_suffix\$/d"
1917 done
1918
1919 extrasub="$extrasub
1920 /^@if /,/^@endif /d"
1921
1922 # Create the serialization dependencies.  This uses a temporary file.
1923
1924 AC_ARG_ENABLE([serial-configure],
1925 [  --enable-serial-[{host,target,build}-]configure
1926                           Force sequential configuration of
1927                           sub-packages for the host, target or build
1928                           machine, or all sub-packages])
1929
1930 case ${enable_serial_configure} in
1931   yes)
1932     enable_serial_build_configure=yes
1933     enable_serial_host_configure=yes
1934     enable_serial_target_configure=yes
1935     ;;
1936 esac
1937
1938 # These force 'configure's to be done one at a time, to avoid problems
1939 # with contention over a shared config.cache.
1940 rm -f serdep.tmp
1941 echo '# serdep.tmp' > serdep.tmp
1942 olditem=
1943 test "x${enable_serial_build_configure}" = xyes &&
1944 for item in ${build_configdirs} ; do
1945   case ${olditem} in
1946     "") ;;
1947     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1948   esac
1949   olditem=${item}
1950 done
1951 olditem=
1952 test "x${enable_serial_host_configure}" = xyes &&
1953 for item in ${configdirs} ; do
1954   case ${olditem} in
1955     "") ;;
1956     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1957   esac
1958   olditem=${item}
1959 done
1960 olditem=
1961 test "x${enable_serial_target_configure}" = xyes &&
1962 for item in ${target_configdirs} ; do
1963   case ${olditem} in
1964     "") ;;
1965     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1966   esac
1967   olditem=${item}
1968 done
1969 serialization_dependencies=serdep.tmp
1970 AC_SUBST_FILE(serialization_dependencies)
1971
1972 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1973 # target and nonopt.  These are the ones we might not want to pass
1974 # down to subconfigures.  Also strip program-prefix, program-suffix,
1975 # and program-transform-name, so that we can pass down a consistent
1976 # program-transform-name.  If autoconf has put single quotes around
1977 # any of these arguments (because they contain shell metacharacters)
1978 # then this will fail; in practice this only happens for
1979 # --program-transform-name, so be sure to override --program-transform-name
1980 # at the end of the argument list.
1981 # These will be expanded by make, so quote '$'.
1982 cat <<\EOF_SED > conftestsed
1983 s/ --no[[^ ]]*/ /g
1984 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1985 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1986 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1987 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1988 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1989 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1990 s/ -cache-file[[= ]][[^ ]]*//g
1991 s/ -srcdir[[= ]][[^ ]]*//g
1992 s/ -host[[= ]][[^ ]]*//g
1993 s/ -build[[= ]][[^ ]]*//g
1994 s/ -target[[= ]][[^ ]]*//g
1995 s/ -program-prefix[[= ]][[^ ]]*//g
1996 s/ -program-suffix[[= ]][[^ ]]*//g
1997 s/ -program-transform-name[[= ]][[^ ]]*//g
1998 s/ [[^' -][^ ]*] / /
1999 s/^ *//;s/ *$//
2000 s,\$,$$,g
2001 EOF_SED
2002 sed -f conftestsed <<EOF_SED > conftestsed.out
2003  ${ac_configure_args}
2004 EOF_SED
2005 baseargs=`cat conftestsed.out`
2006 rm -f conftestsed conftestsed.out
2007
2008 # Add in --program-transform-name, after --program-prefix and
2009 # --program-suffix have been applied to it.  Autoconf has already
2010 # doubled dollar signs and backslashes in program_transform_name; we want
2011 # the backslashes un-doubled, and then the entire thing wrapped in single
2012 # quotes, because this will be expanded first by make and then by the shell.
2013 # Also, because we want to override the logic in subdir configure scripts to
2014 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2015 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2016 ${program_transform_name}
2017 EOF_SED
2018 gcc_transform_name=`cat conftestsed.out`
2019 rm -f conftestsed.out
2020 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2021
2022 # For the build-side libraries, we just need to pretend we're native,
2023 # and not use the same cache file.  Multilibs are neither needed nor
2024 # desired.
2025 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
2026
2027 # For host modules, accept cache file option, or specification as blank.
2028 case "${cache_file}" in
2029 "") # empty
2030   cache_file_option="" ;;
2031 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2032   cache_file_option="--cache-file=${cache_file}" ;;
2033 *) # relative path
2034   cache_file_option="--cache-file=../${cache_file}" ;;
2035 esac
2036
2037 # Host dirs don't like to share a cache file either, horribly enough.
2038 # This seems to be due to autoconf 2.5x stupidity.
2039 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
2040
2041 target_configargs=${baseargs}
2042
2043 # Passing a --with-cross-host argument lets the target libraries know
2044 # whether they are being built with a cross-compiler or being built
2045 # native.  However, it would be better to use other mechanisms to make the
2046 # sorts of decisions they want to make on this basis.  Please consider
2047 # this option to be deprecated.  FIXME.
2048 if test x${is_cross_compiler} = xyes ; then
2049   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2050 fi
2051
2052 # Default to --enable-multilib.
2053 if test x${enable_multilib} = x ; then
2054   target_configargs="--enable-multilib ${target_configargs}"
2055 fi
2056
2057 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2058 # changed from the earlier setting of with_newlib.
2059 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2060   target_configargs="--with-newlib ${target_configargs}"
2061 fi
2062
2063 # Different target subdirs use different values of certain variables
2064 # (notably CXX).  Worse, multilibs use *lots* of different values.
2065 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2066 # it doesn't automatically accept command-line overrides of them.
2067 # This means it's not safe for target subdirs to share a cache file,
2068 # which is disgusting, but there you have it.  Hopefully this can be
2069 # fixed in future.  It's still worthwhile to use a cache file for each
2070 # directory.  I think.
2071
2072 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2073 # We need to pass --target, as newer autoconf's requires consistency
2074 # for target_alias and gcc doesn't manage it consistently.
2075 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2076
2077 FLAGS_FOR_TARGET=
2078 case " $target_configdirs " in
2079  *" newlib "*)
2080   case " $target_configargs " in
2081   *" --with-newlib "*)
2082    case "$target" in
2083    *-cygwin*)
2084      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' ;;
2085    esac
2086
2087    # If we're not building GCC, don't discard standard headers.
2088    if test -d ${srcdir}/gcc; then
2089      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2090
2091      if test "${build}" != "${host}"; then
2092        # On Canadian crosses, CC_FOR_TARGET will have already been set
2093        # by `configure', so we won't have an opportunity to add -Bgcc/
2094        # to it.  This is right: we don't want to search that directory
2095        # for binaries, but we want the header files in there, so add
2096        # them explicitly.
2097        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2098
2099        # Someone might think of using the pre-installed headers on
2100        # Canadian crosses, in case the installed compiler is not fully
2101        # compatible with the compiler being built.  In this case, it
2102        # would be better to flag an error than risking having
2103        # incompatible object files being constructed.  We can't
2104        # guarantee that an error will be flagged, but let's hope the
2105        # compiler will do it, when presented with incompatible header
2106        # files.
2107      fi
2108    fi
2109
2110    case "${target}-${is_cross_compiler}" in
2111    i[[3456789]]86-*-linux*-no)
2112       # Here host == target, so we don't need to build gcc,
2113       # so we don't want to discard standard headers.
2114       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2115       ;;
2116    *)
2117       # If we're building newlib, use its generic headers last, but search
2118       # for any libc-related directories first (so make it the last -B
2119       # switch).
2120       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2121       ;;
2122    esac
2123    ;;
2124   esac
2125   ;;
2126 esac
2127
2128 # Allow the user to override the flags for
2129 # our build compiler if desired.
2130 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2131
2132 # On Canadian crosses, we'll be searching the right directories for
2133 # the previously-installed cross compiler, so don't bother to add
2134 # flags for directories within the install tree of the compiler
2135 # being built; programs in there won't even run.
2136 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2137   # Search for pre-installed headers if nothing else fits.
2138   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2139 fi
2140
2141 if test "x${use_gnu_ld}" = x &&
2142    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2143   # Arrange for us to find uninstalled linker scripts.
2144   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2145 fi
2146
2147 # Search for other target-specific linker scripts and such.
2148 case "${target}" in
2149   m32c-*-* )
2150     if test -d ${srcdir}/libgloss/m32c; then
2151       # This is for crt0.o
2152       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2153       # This is for r8c.ld
2154       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2155       # This is for libnosys.a
2156       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2157     fi
2158     ;;
2159 esac
2160
2161 # Makefile fragments.
2162 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2163 do
2164   eval fragval=\$$frag
2165   if test $fragval != /dev/null; then
2166     eval $frag=${srcdir}/$fragval
2167   fi
2168 done
2169 AC_SUBST_FILE(host_makefile_frag)
2170 AC_SUBST_FILE(target_makefile_frag)
2171 AC_SUBST_FILE(alphaieee_frag)
2172 AC_SUBST_FILE(ospace_frag)
2173
2174 # Miscellanea: directories, flags, etc.
2175 AC_SUBST(RPATH_ENVVAR)
2176 AC_SUBST(tooldir)
2177 AC_SUBST(build_tooldir)
2178 AC_SUBST(CONFIGURE_GDB_TK)
2179 AC_SUBST(GDB_TK)
2180 AC_SUBST(INSTALL_GDB_TK)
2181
2182 # Build module lists & subconfigure args.
2183 AC_SUBST(build_configargs)
2184 AC_SUBST(build_configdirs)
2185
2186 # Host module lists & subconfigure args.
2187 AC_SUBST(host_configargs)
2188 AC_SUBST(configdirs)
2189
2190 # Target module lists & subconfigure args.
2191 AC_SUBST(target_configargs)
2192
2193
2194 # Build tools.
2195 AC_SUBST(CC_FOR_BUILD)
2196 AC_SUBST(config_shell)
2197
2198 # Generate default definitions for YACC, M4, LEX and other programs that run
2199 # on the build machine.  These are used if the Makefile can't locate these
2200 # programs in objdir.
2201 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2202
2203 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2204 case " $build_configdirs " in
2205   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2206   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2207 esac
2208
2209 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2210 case " $build_configdirs " in
2211   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2212 esac
2213
2214 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2215 case " $build_configdirs " in
2216   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2217 esac
2218
2219 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2220 case " $build_configdirs " in
2221   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2222   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2223 esac
2224
2225 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2226 case " $build_configdirs " in
2227   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2228 esac
2229
2230 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2231 case " $build_configdirs " in
2232   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2233   *)
2234 changequote(,)
2235     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2236     # higher, else we use the "missing" dummy.
2237     if ${MAKEINFO} --version \
2238        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2239       :
2240     else
2241       MAKEINFO="$MISSING makeinfo"
2242     fi
2243     ;;
2244 changequote([,])
2245 esac
2246
2247 # FIXME: expect and dejagnu may become build tools?
2248
2249 AC_CHECK_PROGS(EXPECT, expect, expect)
2250 case " $configdirs " in
2251   *" expect "*)
2252     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2253     ;;
2254 esac
2255
2256 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2257 case " $configdirs " in
2258   *" dejagnu "*)
2259     test $host = $build && RUNTEST='$$r/$(HOST_SUBDIR)/dejagnu/runtest'
2260     ;;
2261 esac
2262
2263
2264 # Host tools.
2265 NCN_STRICT_CHECK_TOOLS(AR, ar)
2266 NCN_STRICT_CHECK_TOOLS(AS, as)
2267 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2268 NCN_STRICT_CHECK_TOOLS(LD, ld)
2269 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2270 NCN_STRICT_CHECK_TOOLS(NM, nm)
2271 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2272 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2273 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2274 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2275 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2276 AC_SUBST(CC)
2277 AC_SUBST(CXX)
2278 AC_SUBST(CFLAGS)
2279 AC_SUBST(CFLAGS_FOR_BUILD)
2280 AC_SUBST(CXXFLAGS)
2281
2282 # Target tools.
2283 AC_ARG_WITH([build-time-tools],
2284   [  --with-build-time-tools=path
2285                           use given path to find target tools during the build],
2286   [case x"$withval" in
2287      x/*) ;;
2288      *)
2289        with_build_time_tools=
2290        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2291        ;;
2292    esac],
2293   [with_build_time_tools=])
2294
2295 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2296 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2297 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2298 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2299 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2300
2301 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2302 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2303 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2304 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2305 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2306 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2307 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2308 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2309 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2310 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2311
2312 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2313
2314 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2315 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2316 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2317 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2318                 [gcc/g++ -B$$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],
2319                 c++)
2320 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2321                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2322                 c++)
2323 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2324 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2325 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2326                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2327 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2328                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2329 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2330 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2331 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2332 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2333 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2334 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2335 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2336
2337 AC_SUBST(FLAGS_FOR_TARGET)
2338 AC_SUBST(RAW_CXX_FOR_TARGET)
2339
2340 # Certain tools may need extra flags.
2341 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2342 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2343 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2344
2345 # When building target libraries, except in a Canadian cross, we use
2346 # the same toolchain as the compiler we just built.
2347 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2348 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2349 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2350 if test $host = $build; then
2351   case " $configdirs " in
2352     *" gcc "*)
2353       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2354       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2355       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2356       ;;
2357   esac
2358 fi
2359
2360 AC_SUBST(COMPILER_AS_FOR_TARGET)
2361 AC_SUBST(COMPILER_LD_FOR_TARGET)
2362 AC_SUBST(COMPILER_NM_FOR_TARGET)
2363
2364 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2365 AC_ARG_ENABLE(maintainer-mode,
2366 [  --enable-maintainer-mode enable make rules and dependencies not useful
2367                           (and sometimes confusing) to the casual installer],
2368       USE_MAINTAINER_MODE=$enableval,
2369       USE_MAINTAINER_MODE=no)
2370 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2371 AC_SUBST(MAINTAINER_MODE_TRUE)
2372 AC_SUBST(MAINTAINER_MODE_FALSE)
2373 if test "$USE_MAINTAINER_MODE" = yes; then
2374   MAINTAINER_MODE_TRUE=
2375   MAINTAINER_MODE_FALSE='#'
2376 else
2377   MAINTAINER_MODE_TRUE='#'
2378   MAINTAINER_MODE_FALSE=
2379 fi
2380 MAINT=$MAINTAINER_MODE_TRUE
2381 AC_SUBST(MAINT)dnl
2382
2383 # ---------------------
2384 # GCC bootstrap support
2385 # ---------------------
2386
2387 # Stage specific cflags for build.
2388 stage1_cflags="-g"
2389 case $build in
2390   vax-*-*)
2391     case ${GCC} in
2392       yes) stage1_cflags="-g -Wa,-J" ;;
2393       *) stage1_cflags="-g -J" ;;
2394     esac ;;
2395   powerpc-*-darwin*)
2396     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2397     # sources; use -no-cpp-precomp to get to GNU cpp.
2398     # Apple's GCC has bugs in designated initializer handling, so disable
2399     # that too.
2400     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2401     ;;
2402 esac
2403 AC_SUBST(stage1_cflags)
2404
2405 # Enable -Werror in bootstrap stage2 and later.
2406 # Change the default to "no" on release branches.
2407 AC_ARG_ENABLE(werror,
2408 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2409 [enable_werror=yes])
2410 case ${enable_werror} in
2411   yes) stage2_werror_flag="--enable-werror-always" ;;
2412   *) stage2_werror_flag="" ;;
2413 esac
2414 AC_SUBST(stage2_werror_flag)
2415
2416 # Flags needed to enable html installing and building
2417 AC_ARG_WITH(datarootdir,
2418 [  --with-datarootdir   Use datarootdir as the data root directory.],
2419 [datarootdir="\${prefix}/${withval}"],
2420 [datarootdir="\${prefix}/share"])
2421
2422 AC_ARG_WITH(docdir,
2423 [  --with-docdir        Install documentation in this directory.],
2424 [docdir="\${prefix}/${withval}"],
2425 [docdir="\${datarootdir}/doc"])
2426
2427 AC_ARG_WITH(htmldir,
2428 [  --with-htmldir       Install html in this directory.],
2429 [htmldir="\${prefix}/${withval}"],
2430 [htmldir="\${docdir}"])
2431
2432 AC_SUBST(datarootdir)
2433 AC_SUBST(docdir)
2434 AC_SUBST(htmldir)
2435
2436 AC_OUTPUT(Makefile)