configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   2 #   2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
   3 #
   4 # This file is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17
  18 ##############################################################################
  19 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  20
  21 sinclude(config/acx.m4)
  22
  23 AC_INIT(move-if-change)
  24 AC_PREREQ(2.13)
  25 AC_CANONICAL_SYSTEM
  26 AC_ARG_PROGRAM
  27
  28 # Get 'install' or 'install-sh' and its variants.
  29 AC_PROG_INSTALL
  30 ACX_PROG_LN
  31 AC_PROG_LN_S
  32
  33 ### we might need to use some other shell than /bin/sh for running subshells
  34 ### If we are on Windows, search for the shell.  This will permit people
  35 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  36 ### without also having to set CONFIG_SHELL.  This code will work when
  37 ### using bash, which sets OSTYPE.
  38 case "${OSTYPE}" in
  39 *win32*)
  40   if test x${CONFIG_SHELL} = x ; then
  41     if test ! -f /bin/sh ; then
  42       if test x${SHELL} != x && test -f ${SHELL} ; then
  43         CONFIG_SHELL=${SHELL}
  44         export CONFIG_SHELL
  45       else
  46         for prog in sh sh.exe bash bash.exe; do
  47           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  48           for dir in $PATH; do
  49             test -z "$dir" && dir=.
  50             if test -f $dir/$prog; then
  51               CONFIG_SHELL=$dir/$prog
  52               export CONFIG_SHELL
  53               break
  54             fi
  55           done
  56           IFS="$save_ifs"
  57           test -n "${CONFIG_SHELL}" && break
  58         done
  59       fi
  60     fi
  61   fi
  62   ;;
  63 esac
  64
  65 config_shell=${CONFIG_SHELL-/bin/sh}
  66
  67 progname=$0
  68 # if PWD already has a value, it is probably wrong.
  69 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  70
  71 # Export original configure arguments for use by sub-configures.  These
  72 # will be expanded by make, so quote '$'.
  73 tmp="$progname $@"
  74 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
  75 $tmp
  76 EOF_SED
  77 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
  78 rm -f conftestsed.out
  79 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  80
  81 moveifchange=${srcdir}/move-if-change
  82
  83 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  84
  85 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
  86 # a relative path.
  87 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
  88   INSTALL="${srcpwd}/install-sh -c"
  89 fi
  90
  91 # Set srcdir to "." if that's what it is.
  92 # This is important for multilib support.
  93 pwd=`${PWDCMD-pwd}`
  94 if test "${pwd}" = "${srcpwd}" ; then
  95   srcdir=.
  96 fi
  97
  98 topsrcdir=$srcpwd
  99
 100 extra_host_args=
 101
 102 ### To add a new directory to the tree, first choose whether it is a target
 103 ### or a host dependent tool.  Then put it into the appropriate list
 104 ### (library or tools, host or target), doing a dependency sort.
 105
 106 # Subdirs will be configured in the order listed in build_configdirs,
 107 # configdirs, or target_configdirs; see the serialization section below.
 108
 109 # Dependency sorting is only needed when *configuration* must be done in
 110 # a particular order.  In all cases a dependency should be specified in
 111 # the Makefile, whether or not it's implicitly specified here.
 112
 113 # Double entries in build_configdirs, configdirs, or target_configdirs may
 114 # cause circular dependencies and break everything horribly.
 115
 116 # these library is used by various programs built for the build
 117 # environment
 118 #
 119 build_libs="build-libiberty"
 120
 121 # these tools are built for the build environment
 122 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 123
 124 # these libraries are used by various programs built for the host environment
 125 #
 126 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber"
 127
 128 # these tools are built for the host environment
 129 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 130 # know that we are building the simulator.
 131 # binutils, gas and ld appear in that order because it makes sense to run
 132 # "make check" in that particular order.
 133 host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils gettext zip fastjar gnattools"
 134
 135 # libgcj represents the runtime libraries only used by gcj.
 136 libgcj="target-libffi \
 137         target-boehm-gc \
 138         target-zlib \
 139         target-qthreads \
 140         target-libjava"
 141
 142 # these libraries are built for the target environment, and are built after
 143 # the host libraries and the host tools (which may be a cross compiler)
 144 #
 145 target_libraries="target-libiberty \
 146                 target-libgloss \
 147                 target-newlib \
 148                 target-libstdc++-v3 \
 149                 target-libmudflap \
 150                 target-libssp \
 151                 target-libgcc-math \
 152                 target-libgfortran \
 153                 ${libgcj} \
 154                 target-libobjc \
 155                 target-libada \
 156                 target-libgomp"
 157
 158 # these tools are built using the target libraries, and are intended to
 159 # run only in the target environment
 160 #
 161 # note: any program that *uses* libraries that are in the "target_libraries"
 162 # list belongs in this list.  those programs are also very likely
 163 # candidates for the "native_only" list which follows
 164 #
 165 target_tools="target-examples target-groff target-gperf target-rda"
 166
 167 ################################################################################
 168
 169 ## All tools belong in one of the four categories, and are assigned above
 170 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 171 ## is important because configure will choke if they ever get through.
 172 ## ${configdirs} is directories we build using the host tools.
 173 ## ${target_configdirs} is directories we build using the target tools.
 174 configdirs=`echo ${host_libs} ${host_tools}`
 175 target_configdirs=`echo ${target_libraries} ${target_tools}`
 176 build_configdirs=`echo ${build_libs} ${build_tools}`
 177
 178 ################################################################################
 179
 180 srcname="gnu development package"
 181
 182 # This gets set non-empty for some net releases of packages.
 183 appdirs=""
 184
 185 # Define is_cross_compiler to save on calls to 'test'.
 186 is_cross_compiler=
 187 if test x"${host}" = x"${target}" ; then
 188   is_cross_compiler=no
 189 else
 190   is_cross_compiler=yes
 191 fi
 192
 193 # Find the build and target subdir names.
 194 GCC_TOPLEV_SUBDIRS
 195
 196 # Skipdirs are removed silently.
 197 skipdirs=
 198 # Noconfigdirs are removed loudly.
 199 noconfigdirs=""
 200
 201 use_gnu_ld=
 202 # Make sure we don't let GNU ld be added if we didn't want it.
 203 if test x$with_gnu_ld = xno ; then
 204   use_gnu_ld=no
 205   noconfigdirs="$noconfigdirs ld"
 206 fi
 207
 208 use_gnu_as=
 209 # Make sure we don't let GNU as be added if we didn't want it.
 210 if test x$with_gnu_as = xno ; then
 211   use_gnu_as=no
 212   noconfigdirs="$noconfigdirs gas"
 213 fi
 214
 215 # some tools are so dependent upon X11 that if we're not building with X,
 216 # it's not even worth trying to configure, much less build, that tool.
 217
 218 case ${with_x} in
 219   yes | "") ;; # the default value for this tree is that X11 is available
 220   no)
 221     skipdirs="${skipdirs} tk itcl libgui"
 222     # We won't be able to build gdbtk without X.
 223     enable_gdbtk=no
 224     ;;
 225   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 226 esac
 227
 228 # Some tools are only suitable for building in a "native" situation.
 229 # Remove these if host!=target.
 230 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 231
 232 # Similarly, some are only suitable for cross toolchains.
 233 # Remove these if host=target.
 234 cross_only="target-libgloss target-newlib target-opcodes"
 235
 236 case $is_cross_compiler in
 237   no) skipdirs="${skipdirs} ${cross_only}" ;;
 238   yes) skipdirs="${skipdirs} ${native_only}" ;;
 239 esac
 240
 241 # If both --with-headers and --with-libs are specified, default to
 242 # --without-newlib.
 243 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 244    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 245   if test x"${with_newlib}" = x ; then
 246     with_newlib=no
 247   fi
 248 fi
 249
 250 # Recognize --with-newlib/--without-newlib.
 251 case ${with_newlib} in
 252   no) skipdirs="${skipdirs} target-newlib" ;;
 253   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 254 esac
 255
 256 # Configure extra directories which are host specific
 257
 258 case "${host}" in
 259   *-cygwin*)
 260     configdirs="$configdirs libtermcap" ;;
 261 esac
 262
 263 # A target can indicate whether a language isn't supported for some reason.
 264 # Only spaces may be used in this macro; not newlines or tabs.
 265 unsupported_languages=
 266
 267 # Remove more programs from consideration, based on the host or
 268 # target this usually means that a port of the program doesn't
 269 # exist yet.
 270
 271 case "${host}" in
 272   hppa*64*-*-*)
 273     noconfigdirs="$noconfigdirs byacc"
 274     ;;
 275   i[[3456789]]86-*-vsta)
 276     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 277     ;;
 278   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 279     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 280     ;;
 281   i[[3456789]]86-*-mingw32*)
 282     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 283     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 284     ;;
 285   i[[3456789]]86-*-beos*)
 286     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 287     ;;
 288   *-*-cygwin*)
 289     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 290     ;;
 291   *-*-netbsd*)
 292     noconfigdirs="$noconfigdirs rcs"
 293     ;;
 294   ppc*-*-pe)
 295     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 296     ;;
 297   powerpc-*-beos*)
 298     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 299     ;;
 300 esac
 301
 302
 303 AC_ARG_ENABLE(libada,
 304 [  --enable-libada        Builds libada directory],
 305 ENABLE_LIBADA=$enableval,
 306 ENABLE_LIBADA=yes)
 307 if test "${ENABLE_LIBADA}" != "yes" ; then
 308   noconfigdirs="$noconfigdirs gnattools"
 309 fi
 310
 311 AC_ARG_ENABLE(libssp,
 312 [  --enable-libssp        Builds libssp directory],
 313 ENABLE_LIBSSP=$enableval,
 314 ENABLE_LIBSSP=yes)
 315
 316 # Set the default so we build libgcc-math for ix86 and x86_64
 317 AC_ARG_ENABLE(libgcc-math,
 318 [  --enable-libgcc-math   Builds libgcc-math directory],,
 319 [
 320 case "${target}" in
 321   i?86-* | x86_64-* )
 322     enable_libgcc_math=yes ;;
 323   *)
 324     enable_libgcc_math=no ;;
 325 esac
 326 ])
 327
 328 # Save it here so that, even in case of --enable-libgcj, if the Java
 329 # front-end isn't enabled, we still get libgcj disabled.
 330 libgcj_saved=$libgcj
 331 case $enable_libgcj in
 332 yes)
 333   # If we reset it here, it won't get added to noconfigdirs in the
 334   # target-specific build rules, so it will be forcibly enabled
 335   # (unless the Java language itself isn't enabled).
 336   libgcj=
 337   ;;
 338 no)
 339   # Make sure we get it printed in the list of not supported target libs.
 340   noconfigdirs="$noconfigdirs ${libgcj}"
 341   ;;
 342 esac
 343
 344
 345 # Disable libmudflap on some systems.
 346 if test x$enable_libmudflap = x ; then
 347     case "${target}" in
 348     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 349         # Enable libmudflap by default in GNU and friends.
 350         ;;
 351     *-*-freebsd*)
 352         # Enable libmudflap by default in FreeBSD.
 353         ;;
 354     *)
 355         # Disable it by default everywhere else.
 356         noconfigdirs="$noconfigdirs target-libmudflap"
 357         ;;
 358     esac
 359 fi
 360
 361 # Disable libgomp on non POSIX hosted systems.
 362 if test x$enable_libgomp = x ; then
 363     # Enable libgomp by default on hosted POSIX systems.
 364     case "${target}" in
 365     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 366         ;;
 367     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 368         ;;
 369     *-*-solaris2* | *-*-sysv4* | *-*-irix* | *-*-osf* | *-*-hpux*)
 370         ;;
 371     *-*-darwin* | *-*-aix*)
 372         ;;
 373     *)
 374         noconfigdirs="$noconfigdirs target-libgomp"
 375         ;;
 376     esac
 377 fi
 378
 379
 380 case "${target}" in
 381   *-*-chorusos)
 382     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 383     ;;
 384   powerpc-*-darwin*)
 385     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 386     noconfigdirs="$noconfigdirs sim target-rda"
 387     ;;
 388   *-*-darwin*)
 389     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 390     noconfigdirs="$noconfigdirs sim target-rda"
 391     noconfigdirs="$noconfigdirs ${libgcj}"
 392     ;;
 393   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 394     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 395     ;;
 396   *-*-freebsd*)
 397     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 398     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 399         && test -f /usr/local/include/gmp.h; then
 400       with_gmp=/usr/local
 401     fi
 402
 403     # Skip some stuff that's unsupported on some FreeBSD configurations.
 404     case "${target}" in
 405       i*86-*-*) ;;
 406       alpha*-*-*) ;;
 407       *)
 408         noconfigdirs="$noconfigdirs ${libgcj}"
 409         ;;
 410     esac
 411     ;;
 412   *-*-kaos*)
 413     # Remove unsupported stuff on all kaOS configurations.
 414     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 415     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 416     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 417     noconfigdirs="$noconfigdirs target-libgloss"
 418     ;;
 419   *-*-netbsd*)
 420     # Skip some stuff on all NetBSD configurations.
 421     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 422
 423     # Skip some stuff that's unsupported on some NetBSD configurations.
 424     case "${target}" in
 425       i*86-*-netbsdelf*) ;;
 426       arm*-*-netbsdelf*) ;;
 427       *)
 428         noconfigdirs="$noconfigdirs ${libgcj}"
 429         ;;
 430     esac
 431     ;;
 432   *-*-netware*)
 433     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 434     ;;
 435   *-*-rtems*)
 436     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 437     ;;
 438     # The tpf target doesn't support gdb yet.
 439   *-*-tpf*)
 440     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 441     ;;
 442   *-*-uclinux*)
 443     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 444     ;;
 445   *-*-vxworks*)
 446     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 447     ;;
 448   alpha*-dec-osf*)
 449     # ld works, but does not support shared libraries.
 450     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 451     # gas doesn't generate exception information.
 452     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 453     ;;
 454   alpha*-*-*vms*)
 455     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 456     ;;
 457   alpha*-*-linux*)
 458     # newlib is not 64 bit ready
 459     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 460     ;;
 461   alpha*-*-*)
 462     # newlib is not 64 bit ready
 463     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 464     ;;
 465   am33_2.0-*-linux*)
 466     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 467     ;;
 468   sh-*-linux*)
 469     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 470     ;;
 471   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 472     noconfigdirs="$noconfigdirs ${libgcj}"
 473     noconfigdirs="$noconfigdirs target-examples"
 474     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 475     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 476     noconfigdirs="$noconfigdirs expect dejagnu"
 477     # the C++ libraries don't build on top of CE's C libraries
 478     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 479     noconfigdirs="$noconfigdirs target-newlib"
 480     case "${host}" in
 481       *-*-cygwin*) ;; # keep gdb and readline
 482       *) noconfigdirs="$noconfigdirs gdb readline"
 483          ;;
 484     esac
 485     ;;
 486   arc-*-*)
 487     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 488     ;;
 489   arm-semi-aof )
 490     ;;
 491   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 492     noconfigdirs="$noconfigdirs ${libgcj}"
 493     ;;
 494   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 495     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 496     ;;
 497   arm*-*-linux-gnueabi)
 498     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 499     noconfigdirs="$noconfigdirs target-libjava target-libobjc"
 500     ;;
 501   arm*-*-symbianelf*)
 502     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 503     ;;
 504   arm-*-pe*)
 505     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 506     ;;
 507   thumb-*-coff)
 508     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 509     ;;
 510   thumb-*-elf)
 511     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 512     ;;
 513   thumb-*-pe)
 514     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 515     ;;
 516   arm-*-riscix*)
 517     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 518     ;;
 519   avr-*-*)
 520     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 521     ;;
 522   bfin-*-*)
 523     noconfigdirs="$noconfigdirs target-libgloss gdb"
 524     if test x${is_cross_compiler} != xno ; then
 525       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 526     fi
 527     ;;
 528   c4x-*-* | tic4x-*-*)
 529     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 530     ;;
 531   c54x*-*-* | tic54x-*-*)
 532     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 533     ;;
 534   cris-*-* | crisv32-*-*)
 535     unsupported_languages="$unsupported_languages java"
 536     case "${target}" in
 537       *-*-aout)
 538         unsupported_languages="$unsupported_languages fortran"
 539         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 540       *-*-elf)
 541         unsupported_languages="$unsupported_languages fortran"
 542         noconfigdirs="$noconfigdirs target-boehm-gc";;
 543       *-*-linux*)
 544         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 545       *)
 546         unsupported_languages="$unsupported_languages fortran"
 547         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 548     esac
 549     ;;
 550   crx-*-*)
 551     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 552     ;;
 553   d10v-*-*)
 554     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 555     ;;
 556   d30v-*-*)
 557     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 558     ;;
 559   fr30-*-elf*)
 560     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 561     ;;
 562   frv-*-*)
 563     noconfigdirs="$noconfigdirs ${libgcj}"
 564     ;;
 565   h8300*-*-*)
 566     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 567     ;;
 568   h8500-*-*)
 569     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 570     ;;
 571   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 572     ;;
 573   hppa*64*-*-linux* | parisc*64*-*-linux*)
 574     # In this case, it's because the hppa64-linux target is for
 575     # the kernel only at this point and has no libc, and thus no
 576     # headers, crt*.o, etc., all of which are needed by these.
 577     noconfigdirs="$noconfigdirs target-zlib"
 578     ;;
 579   parisc*-*-linux* | hppa*-*-linux*)
 580     ;;
 581   hppa*-*-*elf* | \
 582   hppa*-*-lites* | \
 583   hppa*-*-openbsd* | \
 584   hppa*64*-*-*)
 585     noconfigdirs="$noconfigdirs ${libgcj}"
 586     ;;
 587   hppa*-*-*)
 588     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 589     # build on HP-UX 10.20.
 590     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 591     ;;
 592   i960-*-*)
 593     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 594     ;;
 595   ia64*-*-elf*)
 596     # No gdb support yet.
 597     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 598     ;;
 599   ia64*-**-hpux*)
 600     # No gdb or ld support yet.
 601     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 602     ;;
 603   i370-*-opened*)
 604     ;;
 605   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 606     noconfigdirs="$noconfigdirs ${libgcj}"
 607     ;;
 608   i[[3456789]]86-*-linux*)
 609     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 610     # not build java stuff by default.
 611     case "${target}" in
 612       *-*-*libc1*)
 613         noconfigdirs="$noconfigdirs ${libgcj}";;
 614     esac
 615
 616     # This section makes it possible to build newlib natively on linux.
 617     # If we are using a cross compiler then don't configure newlib.
 618     if test x${is_cross_compiler} != xno ; then
 619       noconfigdirs="$noconfigdirs target-newlib"
 620     fi
 621     noconfigdirs="$noconfigdirs target-libgloss"
 622     # If we are not using a cross compiler, do configure newlib.
 623     # Note however, that newlib will only be configured in this situation
 624     # if the --with-newlib option has been given, because otherwise
 625     # 'target-newlib' will appear in skipdirs.
 626     ;;
 627   i[[3456789]]86-*-mingw32*)
 628     target_configdirs="$target_configdirs target-mingw"
 629     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 630
 631     # Can't build gdb for mingw32 if not native.
 632     case "${host}" in
 633       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 634       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 635          ;;
 636     esac
 637     ;;
 638   *-*-cygwin*)
 639     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 640     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 641     # always build newlib if winsup directory is present.
 642     if test -d "$srcdir/winsup"; then
 643       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 644     elif test -d "$srcdir/newlib"; then
 645       echo "Warning: winsup is missing so newlib can't be built."
 646     fi
 647
 648     # Can't build gdb for Cygwin if not native.
 649     case "${host}" in
 650       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 651       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 652          ;;
 653     esac
 654     ;;
 655   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 656   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 657     ;;
 658   i[[3456789]]86-*-pe)
 659     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 660     ;;
 661   i[[3456789]]86-*-sco3.2v5*)
 662     # The linker does not yet know about weak symbols in COFF,
 663     # and is not configured to handle mixed ELF and COFF.
 664     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 665     ;;
 666   i[[3456789]]86-*-sco*)
 667     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 668     ;;
 669   i[[3456789]]86-*-solaris2*)
 670     noconfigdirs="$noconfigdirs target-libgloss"
 671     ;;
 672   i[[3456789]]86-*-sysv4*)
 673     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 674     ;;
 675   i[[3456789]]86-*-beos*)
 676     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 677     ;;
 678   i[[3456789]]86-*-rdos*)
 679     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 680     ;;
 681   m32r-*-*)
 682     noconfigdirs="$noconfigdirs ${libgcj}"
 683     ;;
 684   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 685     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 686     ;;
 687   m68k-*-elf*)
 688     noconfigdirs="$noconfigdirs ${libgcj}"
 689     ;;
 690   m68k-*-coff*)
 691     noconfigdirs="$noconfigdirs ${libgcj}"
 692     ;;
 693   mcore-*-pe*)
 694   # The EPOC C++ environment does not support exceptions or rtti,
 695   # and so building libstdc++-v3 tends not to always work.
 696     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 697     ;;
 698   mmix-*-*)
 699     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 700     unsupported_languages="$unsupported_languages fortran java"
 701     ;;
 702   mn10200-*-*)
 703     noconfigdirs="$noconfigdirs ${libgcj}"
 704     ;;
 705   mn10300-*-*)
 706     noconfigdirs="$noconfigdirs ${libgcj}"
 707     ;;
 708   mt-*-*)
 709     noconfigdirs="$noconfigdirs sim"
 710     ;;
 711   powerpc-*-aix*)
 712     # copied from rs6000-*-* entry
 713     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 714     ;;
 715   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 716     target_configdirs="$target_configdirs target-winsup"
 717     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 718     # always build newlib.
 719     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 720     ;;
 721     # This is temporary until we can link against shared libraries
 722   powerpcle-*-solaris*)
 723     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 724     ;;
 725   powerpc-*-beos*)
 726     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 727     ;;
 728   powerpc-*-eabi)
 729     noconfigdirs="$noconfigdirs ${libgcj}"
 730     ;;
 731   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 732     ;;
 733   rs6000-*-lynxos*)
 734     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 735     ;;
 736   rs6000-*-aix*)
 737     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 738     ;;
 739   rs6000-*-*)
 740     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 741     ;;
 742   m68k-apollo-*)
 743     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 744     ;;
 745   mips*-*-irix5*)
 746     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 747     ;;
 748   mips*-*-irix6*)
 749     # Linking libjava exceeds command-line length limits on at least
 750     # IRIX 6.2, but not on IRIX 6.5.
 751     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 752     # <oldham@codesourcery.com>
 753     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 754     ;;
 755   mips*-dec-bsd*)
 756     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 757     ;;
 758   mips*-*-bsd*)
 759     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 760     ;;
 761   mipstx39-*-*)
 762     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 763     ;;
 764   mips64*-*-linux*)
 765     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 766     ;;
 767   mips*-*-linux*)
 768     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 769     ;;
 770   mips*-*-*)
 771     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 772     ;;
 773   romp-*-*)
 774     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 775     ;;
 776   sh-*-* | sh64-*-*)
 777     case "${host}" in
 778       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 779       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 780       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 781       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 782     esac
 783     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 784     ;;
 785   sparc-*-elf*)
 786     noconfigdirs="$noconfigdirs ${libgcj}"
 787     ;;
 788   sparc64-*-elf*)
 789     noconfigdirs="$noconfigdirs ${libgcj}"
 790     ;;
 791   sparclite-*-*)
 792     noconfigdirs="$noconfigdirs ${libgcj}"
 793     ;;
 794   sparc-*-sunos4*)
 795     noconfigdirs="$noconfigdirs ${libgcj}"
 796     if test x${is_cross_compiler} != xno ; then
 797            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 798     else
 799            use_gnu_ld=no
 800     fi
 801     ;;
 802   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 803     noconfigdirs="$noconfigdirs ${libgcj}"
 804     ;;
 805   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 806     ;;
 807   v810-*-*)
 808     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 809     ;;
 810   v850-*-*)
 811     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 812     ;;
 813   v850e-*-*)
 814     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 815     ;;
 816   v850ea-*-*)
 817     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 818     ;;
 819   vax-*-vms)
 820     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 821     ;;
 822   vax-*-*)
 823     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 824     ;;
 825   xtensa-*-*)
 826     noconfigdirs="$noconfigdirs ${libgcj}"
 827     ;;
 828   ip2k-*-*)
 829     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 830     ;;
 831   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 832     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 833     ;;
 834   *-*-lynxos*)
 835     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 836     ;;
 837   *-*-*)
 838     noconfigdirs="$noconfigdirs ${libgcj}"
 839     ;;
 840 esac
 841
 842 # If we aren't building newlib, then don't build libgloss, since libgloss
 843 # depends upon some newlib header files.
 844 case "${noconfigdirs}" in
 845   *target-libgloss*) ;;
 846   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 847 esac
 848
 849 # Work in distributions that contain no compiler tools, like Autoconf.
 850 tentative_cc=""
 851 host_makefile_frag=/dev/null
 852 if test -d ${srcdir}/config ; then
 853 case "${host}" in
 854   m68k-hp-hpux*)
 855     # Avoid "too much defining" errors from HPUX compiler.
 856     tentative_cc="cc -Wp,-H256000"
 857     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 858     # If it's HP/UX ar, this should be harmless.
 859     RANLIB="ar ts"
 860     ;;
 861   m68k-apollo-sysv*)
 862     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 863     ;;
 864   m68k-apollo-bsd*)
 865     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 866     # chokes on bfd, the compiler won't let you assign integers to enums, and
 867     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 868     # the apollo compiler" (the preferred version of GCC could be called cc,
 869     # or whatever), but I'm not sure leaving CC as cc is any better...
 870     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 871     # Used to have BISON=yacc.
 872     tentative_cc=gcc
 873     ;;
 874   m88k-dg-dgux*)
 875     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 876     ;;
 877   m88k-harris-cxux*)
 878     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 879     tentative_cc="cc -Xa"
 880     host_makefile_frag="config/mh-cxux"
 881     ;;
 882   m88k-motorola-sysv*)
 883     ;;
 884   mips*-dec-ultrix*)
 885     tentative_cc="cc -Wf,-XNg1000"
 886     host_makefile_frag="config/mh-decstation"
 887     ;;
 888   mips*-nec-sysv4*)
 889     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 890     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 891     host_makefile_frag="config/mh-necv4"
 892     ;;
 893   mips*-sgi-irix4*)
 894     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 895     # environment.  Also bump switch table size so that cp-parse will
 896     # compile.  Bump string length limit so linker builds.
 897     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 898     ;;
 899   mips*-*-sysv4*)
 900     host_makefile_frag="config/mh-sysv4"
 901     ;;
 902   mips*-*-sysv*)
 903     # This is for a MIPS running RISC/os 4.52C.
 904
 905     # This is needed for GDB, but needs to be in the top-level make because
 906     # if a library is compiled with the bsd headers and gets linked with the
 907     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 908     # a different size).
 909     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 910     # known except to select the sysv environment.  Could we use /proc instead?
 911     # These "sysv environments" and "bsd environments" often end up being a pain.
 912     #
 913     # This is not part of CFLAGS because perhaps not all C compilers have this
 914     # option.
 915     tentative_cc="cc -systype sysv"
 916     ;;
 917   i370-ibm-opened*)
 918     tentative_cc="c89"
 919     ;;
 920   i[[3456789]]86-*-sysv5*)
 921     host_makefile_frag="config/mh-sysv5"
 922     ;;
 923   i[[3456789]]86-*-dgux*)
 924     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 925     host_makefile_frag="config/mh-dgux386"
 926     ;;
 927   i[[3456789]]86-ncr-sysv4.3*)
 928     # The MetaWare compiler will generate a copyright message unless you
 929     # turn it off by adding the -Hnocopyr flag.
 930     tentative_cc="cc -Hnocopyr"
 931     ;;
 932   i[[3456789]]86-ncr-sysv4*)
 933     # for an NCR 3000 (i486/SVR4) system.
 934     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 935     # This compiler not only emits obnoxious copyright messages every time
 936     # you run it, but it chokes and dies on a whole bunch of GNU source
 937     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 938     tentative_cc="/usr/ccs/ATT/cc"
 939     host_makefile_frag="config/mh-ncr3000"
 940     ;;
 941   i[[3456789]]86-*-sco3.2v5*)
 942     ;;
 943   i[[3456789]]86-*-sco*)
 944     # The native C compiler botches some simple uses of const.  Unfortunately,
 945     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 946     tentative_cc="cc -Dconst="
 947     host_makefile_frag="config/mh-sco"
 948     ;;
 949   i[[3456789]]86-*-udk*)
 950     host_makefile_frag="config/mh-sysv5"
 951     ;;
 952   i[[3456789]]86-*-solaris2*)
 953     host_makefile_frag="config/mh-sysv4"
 954     ;;
 955   i[[3456789]]86-*-msdosdjgpp*)
 956     host_makefile_frag="config/mh-djgpp"
 957     ;;
 958   *-cygwin*)
 959     host_makefile_frag="config/mh-cygwin"
 960     ;;
 961   *-mingw32*)
 962     ;;
 963   *-interix*)
 964     host_makefile_frag="config/mh-interix"
 965     ;;
 966   vax-*-ultrix2*)
 967     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 968     tentative_cc=gcc
 969     ;;
 970   *-*-solaris2*)
 971     host_makefile_frag="config/mh-solaris"
 972     ;;
 973   m68k-sun-sunos*)
 974     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 975     # without overflowing the jump tables (-J says to use a 32 bit table)
 976     tentative_cc="cc -J"
 977     ;;
 978   *-hp-hpux*)
 979     tentative_cc="cc -Wp,-H256000"
 980     ;;
 981   *-*-hiux*)
 982     tentative_cc="cc -Wp,-H256000"
 983     ;;
 984   rs6000-*-lynxos*)
 985     # /bin/cc is less than useful for our purposes.  Always use GCC
 986     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 987     host_makefile_frag="config/mh-lynxrs6k"
 988     ;;
 989   powerpc-*-darwin*)
 990     host_makefile_frag="config/mh-ppc-darwin"
 991     ;;
 992   powerpc-*-aix*)
 993     host_makefile_frag="config/mh-ppc-aix"
 994     ;;
 995   rs6000-*-aix*)
 996     host_makefile_frag="config/mh-ppc-aix"
 997     ;;
 998   *-*-lynxos*)
 999     # /bin/cc is less than useful for our purposes.  Always use GCC
1000     tentative_cc="/bin/gcc"
1001     ;;
1002   *-*-sysv4*)
1003     host_makefile_frag="config/mh-sysv4"
1004     ;;
1005   # This is placed last to prevent interfering with the cases above.
1006   i[[3456789]]86-*-*)
1007     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
1008     host_makefile_frag="config/mh-x86omitfp"
1009     ;;
1010 esac
1011 fi
1012
1013 # If we aren't going to be using gcc, see if we can extract a definition
1014 # of CC from the fragment.
1015 # Actually, use the 'pre-extracted' version above.
1016 if test -z "${CC}" && test "${build}" = "${host}" ; then
1017   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1018   found=
1019   for dir in $PATH; do
1020     test -z "$dir" && dir=.
1021     if test -f $dir/gcc; then
1022       found=yes
1023       break
1024     fi
1025   done
1026   IFS="$save_ifs"
1027   if test -z "${found}" && test -n "${tentative_cc}" ; then
1028     CC=$tentative_cc
1029   fi
1030 fi
1031
1032 if test "${build}" != "${host}" ; then
1033   # If we are doing a Canadian Cross, in which the host and build systems
1034   # are not the same, we set reasonable default values for the tools.
1035
1036   CC=${CC-${host_alias}-gcc}
1037   CFLAGS=${CFLAGS-"-g -O2"}
1038   CXX=${CXX-${host_alias}-c++}
1039   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1040   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1041
1042 else
1043   # Set reasonable default values for some tools even if not Canadian.
1044   # Of course, these are different reasonable default values, originally
1045   # specified directly in the Makefile.
1046   # We don't export, so that autoconf can do its job.
1047   # Note that all these settings are above the fragment inclusion point
1048   # in Makefile.in, so can still be overridden by fragments.
1049   # This is all going to change when we autoconfiscate...
1050
1051   CC_FOR_BUILD="\$(CC)"
1052   AC_PROG_CC
1053
1054   # We must set the default linker to the linker used by gcc for the correct
1055   # operation of libtool.  If LD is not defined and we are using gcc, try to
1056   # set the LD default to the ld used by gcc.
1057   if test -z "$LD"; then
1058     if test "$GCC" = yes; then
1059       case $build in
1060       *-*-mingw*)
1061         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1062       *)
1063         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1064       esac
1065       case $gcc_prog_ld in
1066       # Accept absolute paths.
1067       [[\\/]* | [A-Za-z]:[\\/]*)]
1068         LD="$gcc_prog_ld" ;;
1069       esac
1070     fi
1071   fi
1072
1073   CXX=${CXX-"c++"}
1074   CFLAGS=${CFLAGS-"-g"}
1075   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1076 fi
1077
1078 ACX_PROG_GNAT
1079 ACX_PROG_CMP_IGNORE_INITIAL
1080
1081 # Check for GMP and MPFR
1082 gmplibs=
1083 gmpinc=
1084 have_gmp=yes
1085 # Specify a location for mpfr
1086 # check for this first so it ends up on the link line before gmp.
1087 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1088
1089 if test "x$with_mpfr_dir" != x; then
1090   gmpinc="-I$with_mpfr_dir"
1091   gmplibs="$with_mpfr_dir/libmpfr.a"
1092 else
1093   gmplibs="-lmpfr"
1094 fi
1095
1096 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1097
1098 if test "x$with_mpfr" != x; then
1099   gmplibs="-L$with_mpfr/lib $gmplibs"
1100   gmpinc="-I$with_mpfr/include"
1101 fi
1102
1103 # Specify a location for gmp
1104 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1105
1106 if test "x$with_gmp_dir" != x; then
1107   gmpinc="$gmpinc -I$with_gmp_dir"
1108   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1109     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1110   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1111     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1112   fi
1113   # One of the later tests will catch the error if neither library is present.
1114 else
1115   gmplibs="$gmplibs -lgmp"
1116 fi
1117
1118 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1119
1120 if test "x$with_gmp" != x; then
1121   gmplibs="-L$with_gmp/lib $gmplibs"
1122   gmpinc="-I$with_gmp/include $gmpinc"
1123 fi
1124
1125 saved_CFLAGS="$CFLAGS"
1126 CFLAGS="$CFLAGS $gmpinc"
1127 # Check GMP actually works
1128 AC_MSG_CHECKING([for correct version of gmp.h])
1129 AC_TRY_COMPILE([#include "gmp.h"],[
1130 #if __GNU_MP_VERSION < 3
1131 choke me
1132 #endif
1133 ], [AC_MSG_RESULT([yes])],
1134   [AC_MSG_RESULT([no]); have_gmp=no])
1135
1136 if test x"$have_gmp" = xyes; then
1137   AC_MSG_CHECKING([for MPFR])
1138
1139   saved_LIBS="$LIBS"
1140   LIBS="$LIBS $gmplibs"
1141   AC_TRY_LINK([#include <gmp.h>
1142 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1143     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1144   LIBS="$saved_LIBS"
1145 fi
1146 CFLAGS="$saved_CFLAGS"
1147
1148 # Flags needed for both GMP and/or MPFR
1149 AC_SUBST(gmplibs)
1150 AC_SUBST(gmpinc)
1151
1152 # By default, C is the only stage 1 language.
1153 stage1_languages=c
1154 AC_SUBST(stage1_languages)
1155
1156 # Figure out what language subdirectories are present.
1157 # Look if the user specified --enable-languages="..."; if not, use
1158 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1159 # go away some day.
1160 # NB:  embedded tabs in this IF block -- do not untabify
1161 if test -d ${srcdir}/gcc; then
1162   if test x"${enable_languages+set}" != xset; then
1163     if test x"${LANGUAGES+set}" = xset; then
1164       enable_languages="${LANGUAGES}"
1165         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1166     else
1167       enable_languages=all
1168     fi
1169   else
1170     if test x"${enable_languages}" = x ||
1171        test x"${enable_languages}" = xyes;
1172        then
1173       echo configure.in: --enable-languages needs at least one language argument 1>&2
1174       exit 1
1175     fi
1176   fi
1177   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1178
1179   # 'f95' is the old name for the 'fortran' language. We issue a warning
1180   # and make the substitution.
1181   case ,${enable_languages}, in
1182     *,f95,*)
1183       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1184       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1185       ;;
1186   esac
1187
1188   # First scan to see if an enabled language requires some other language.
1189   # We assume that a given config-lang.in will list all the language
1190   # front ends it requires, even if some are required indirectly.
1191   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1192     case ${lang_frag} in
1193       ..) ;;
1194       # The odd quoting in the next line works around
1195       # an apparent bug in bash 1.12 on linux.
1196       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1197       *)
1198         # From the config-lang.in, get $language, $lang_requires
1199         language=
1200         lang_requires=
1201         . ${lang_frag}
1202         for other in ${lang_requires} ; do
1203           case ,${enable_languages}, in
1204             *,$other,*) ;;
1205             *,all,*) ;;
1206             *,$language,*)
1207               echo " \`$other' language required by \`$language'; enabling" 1>&2
1208               enable_languages="${enable_languages},${other}"
1209               ;;
1210           esac
1211         done
1212         ;;
1213     esac
1214   done
1215
1216   new_enable_languages=c
1217   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1218   potential_languages=c
1219
1220   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1221     case ${lang_frag} in
1222       ..) ;;
1223       # The odd quoting in the next line works around
1224       # an apparent bug in bash 1.12 on linux.
1225       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1226       *)
1227         # From the config-lang.in, get $language, $target_libs,
1228         # $lang_dirs, $boot_language, and $build_by_default
1229         language=
1230         target_libs=
1231         lang_dirs=
1232         boot_language=
1233         build_by_default=
1234         need_gmp=
1235         . ${lang_frag}
1236         potential_languages="${potential_languages},${language}"
1237         # This is quite sensitive to the ordering of the case statement arms.
1238         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1239           *::*:*)
1240             echo "${lang_frag} doesn't set \$language." 1>&2
1241             exit 1
1242             ;;
1243           *:ada:no:*)
1244             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1245             add_this_lang=no
1246             ;;
1247           *,${language},*:*:*:*)
1248             # Language was explicitly selected; include it.
1249             add_this_lang=yes
1250             ;;
1251           *,all,*:*:*:no)
1252             # 'all' was selected, but this is not a default language
1253             # so do not include it.
1254             add_this_lang=no
1255             ;;
1256           *,all,*:*:*:*)
1257             # 'all' was selected and this is a default language; include it.
1258             add_this_lang=yes
1259             ;;
1260           *)
1261             add_this_lang=no
1262             ;;
1263         esac
1264
1265         # Disable languages that need GMP if it isn't available.
1266         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1267           *,${language},*:no:yes)
1268             # Specifically requested language; tell them.
1269             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1270             ;;
1271           *:no:yes)
1272             # Silently disable.
1273             add_this_lang=no
1274             ;;
1275         esac
1276
1277         # Disable a language that is unsupported by the target.
1278         case " $unsupported_languages " in
1279           *" $language "*)
1280             add_this_lang=no
1281             ;;
1282         esac
1283
1284         case $add_this_lang in
1285           no)
1286             # Remove language-dependent dirs.
1287             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1288             ;;
1289           *)
1290             new_enable_languages="$new_enable_languages,$language"
1291             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1292             case ${boot_language} in
1293               yes)
1294                 # Add to (comma-separated) list of stage 1 languages.
1295                 stage1_languages="${stage1_languages},${language}"
1296                 ;;
1297             esac
1298             ;;
1299         esac
1300         ;;
1301     esac
1302   done
1303
1304   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1305   if test "x$missing_languages" != x; then
1306     AC_MSG_ERROR([
1307 The following requested languages could not be built: ${missing_languages}
1308 Recognised languages are: ${potential_languages}])
1309   fi
1310
1311   if test "x$new_enable_languages" != "x$enable_languages"; then
1312     echo The following languages will be built: ${new_enable_languages}
1313   fi
1314   enable_languages="$new_enable_languages"
1315   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1316 fi
1317
1318 # Handle --disable-<component> generically.
1319 for dir in $configdirs $build_configdirs $target_configdirs ; do
1320   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1321   if eval test x\${enable_${dirname}} "=" xno ; then
1322     noconfigdirs="$noconfigdirs $dir"
1323   fi
1324 done
1325
1326 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1327 # $build_configdirs and $target_configdirs.
1328 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1329
1330 notsupp=""
1331 for dir in . $skipdirs $noconfigdirs ; do
1332   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1333   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1334     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1335     if test -r $srcdir/$dirname/configure ; then
1336       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1337         true
1338       else
1339         notsupp="$notsupp $dir"
1340       fi
1341     fi
1342   fi
1343   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1344     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1345     if test -r $srcdir/$dirname/configure ; then
1346       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1347         true
1348       else
1349         notsupp="$notsupp $dir"
1350       fi
1351     fi
1352   fi
1353   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1354     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1355     if test -r $srcdir/$dirname/configure ; then
1356       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1357         true
1358       else
1359         notsupp="$notsupp $dir"
1360       fi
1361     fi
1362   fi
1363 done
1364
1365 # Sometimes the tools are distributed with libiberty but with no other
1366 # libraries.  In that case, we don't want to build target-libiberty.
1367 if test -n "${target_configdirs}" ; then
1368   others=
1369   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1370     if test "$i" != "libiberty" ; then
1371       if test -r $srcdir/$i/configure ; then
1372         others=yes;
1373         break;
1374       fi
1375     fi
1376   done
1377   if test -z "${others}" ; then
1378     target_configdirs=
1379   fi
1380 fi
1381
1382 # Quietly strip out all directories which aren't configurable in this tree.
1383 # This relies on all configurable subdirectories being autoconfiscated, which
1384 # is now the case.
1385 build_configdirs_all="$build_configdirs"
1386 build_configdirs=
1387 for i in ${build_configdirs_all} ; do
1388   j=`echo $i | sed -e s/build-//g`
1389   if test -f ${srcdir}/$j/configure ; then
1390     build_configdirs="${build_configdirs} $i"
1391   fi
1392 done
1393
1394 configdirs_all="$configdirs"
1395 configdirs=
1396 for i in ${configdirs_all} ; do
1397   if test -f ${srcdir}/$i/configure ; then
1398     configdirs="${configdirs} $i"
1399   fi
1400 done
1401
1402 target_configdirs_all="$target_configdirs"
1403 target_configdirs=
1404 for i in ${target_configdirs_all} ; do
1405   j=`echo $i | sed -e s/target-//g`
1406   if test -f ${srcdir}/$j/configure ; then
1407     target_configdirs="${target_configdirs} $i"
1408   fi
1409 done
1410
1411 # Produce a warning message for the subdirs we can't configure.
1412 # This isn't especially interesting in the Cygnus tree, but in the individual
1413 # FSF releases, it's important to let people know when their machine isn't
1414 # supported by the one or two programs in a package.
1415
1416 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1417   # If $appdirs is non-empty, at least one of those directories must still
1418   # be configured, or we error out.  (E.g., if the gas release supports a
1419   # specified target in some subdirs but not the gas subdir, we shouldn't
1420   # pretend that all is well.)
1421   if test -n "$appdirs" ; then
1422     for dir in $appdirs ; do
1423       if test -r $dir/Makefile.in ; then
1424         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1425           appdirs=""
1426           break
1427         fi
1428         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1429           appdirs=""
1430           break
1431         fi
1432       fi
1433     done
1434     if test -n "$appdirs" ; then
1435       echo "*** This configuration is not supported by this package." 1>&2
1436       exit 1
1437     fi
1438   fi
1439   # Okay, some application will build, or we don't care to check.  Still
1440   # notify of subdirs not getting built.
1441   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1442   echo "    ${notsupp}" 1>&2
1443   echo "    (Any other directories should still work fine.)" 1>&2
1444 fi
1445
1446 case "$host" in
1447   *msdosdjgpp*)
1448     enable_gdbtk=no ;;
1449 esac
1450
1451 copy_dirs=
1452
1453 AC_ARG_WITH([build-sysroot],
1454   [  --with-build-sysroot=sysroot
1455                           use sysroot as the system root during the build],
1456   [if test x"$withval" != x ; then
1457      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1458    fi],
1459   [SYSROOT_CFLAGS_FOR_TARGET=])
1460 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1461
1462 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1463 # the named directory are copied to $(tooldir)/sys-include.
1464 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1465   if test x${is_cross_compiler} = xno ; then
1466     echo 1>&2 '***' --with-headers is only supported when cross compiling
1467     exit 1
1468   fi
1469   if test x"${with_headers}" != xyes ; then
1470     case "${exec_prefixoption}" in
1471     "") x=${prefix} ;;
1472     *) x=${exec_prefix} ;;
1473     esac
1474     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1475   fi
1476 fi
1477
1478 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1479 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1480 # are permitted.
1481 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1482   if test x${is_cross_compiler} = xno ; then
1483     echo 1>&2 '***' --with-libs is only supported when cross compiling
1484     exit 1
1485   fi
1486   if test x"${with_libs}" != xyes ; then
1487     # Copy the libraries in reverse order, so that files in the first named
1488     # library override files in subsequent libraries.
1489     case "${exec_prefixoption}" in
1490     "") x=${prefix} ;;
1491     *) x=${exec_prefix} ;;
1492     esac
1493     for l in ${with_libs}; do
1494       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1495     done
1496   fi
1497 fi
1498
1499 # Set with_gnu_as and with_gnu_ld as appropriate.
1500 #
1501 # This is done by determining whether or not the appropriate directory
1502 # is available, and by checking whether or not specific configurations
1503 # have requested that this magic not happen.
1504 #
1505 # The command line options always override the explicit settings in
1506 # configure.in, and the settings in configure.in override this magic.
1507 #
1508 # If the default for a toolchain is to use GNU as and ld, and you don't
1509 # want to do that, then you should use the --without-gnu-as and
1510 # --without-gnu-ld options for the configure script.
1511
1512 if test x${use_gnu_as} = x &&
1513    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1514   with_gnu_as=yes
1515   extra_host_args="$extra_host_args --with-gnu-as"
1516 fi
1517
1518 if test x${use_gnu_ld} = x &&
1519    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1520   with_gnu_ld=yes
1521   extra_host_args="$extra_host_args --with-gnu-ld"
1522 fi
1523
1524 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1525 # can detect this case.
1526
1527 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1528   with_newlib=yes
1529   extra_host_args="$extra_host_args --with-newlib"
1530 fi
1531
1532 # Handle ${copy_dirs}
1533 set fnord ${copy_dirs}
1534 shift
1535 while test $# != 0 ; do
1536   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1537     :
1538   else
1539     echo Copying $1 to $2
1540
1541     # Use the install script to create the directory and all required
1542     # parent directories.
1543     if test -d $2 ; then
1544       :
1545     else
1546       echo >config.temp
1547       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1548     fi
1549
1550     # Copy the directory, assuming we have tar.
1551     # FIXME: Should we use B in the second tar?  Not all systems support it.
1552     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1553
1554     # It is the responsibility of the user to correctly adjust all
1555     # symlinks.  If somebody can figure out how to handle them correctly
1556     # here, feel free to add the code.
1557
1558     echo $1 > $2/COPIED
1559   fi
1560   shift; shift
1561 done
1562
1563 # Determine a target-dependent exec_prefix that the installed
1564 # gcc will search in.  Keep this list sorted by triplet, with
1565 # the *-*-osname triplets last.
1566 md_exec_prefix=
1567 case "${target}" in
1568   alpha*-*-*vms*)
1569     md_exec_prefix=/gnu/lib/gcc-lib
1570     ;;
1571   i[34567]86-pc-msdosdjgpp*)
1572     md_exec_prefix=/dev/env/DJDIR/bin
1573     ;;
1574   i[34567]86-*-sco3.2v5*)
1575     if test $with_gnu_as = yes; then
1576       md_exec_prefix=/usr/gnu/bin
1577     else
1578       md_exec_prefix=/usr/ccs/bin/elf
1579     fi
1580     ;;
1581
1582   mn10300-*-* | \
1583   powerpc-*-chorusos* | \
1584   powerpc*-*-eabi* | \
1585   powerpc*-*-sysv* | \
1586   powerpc*-*-kaos* | \
1587   s390x-ibm-tpf*)
1588     md_exec_prefix=/usr/ccs/bin
1589     ;;
1590   sparc64-*-elf*)
1591     ;;
1592   v850*-*-*)
1593     md_exec_prefix=/usr/ccs/bin
1594     ;;
1595   xtensa-*-elf*)
1596     ;;
1597
1598   *-*-beos* | \
1599   *-*-elf* | \
1600   *-*-hpux* | \
1601   *-*-netware* | \
1602   *-*-nto-qnx* | \
1603   *-*-rtems* | \
1604   *-*-solaris2* | \
1605   *-*-sysv[45]* | \
1606   *-*-vxworks* | \
1607   *-wrs-windiss)
1608     md_exec_prefix=/usr/ccs/bin
1609     ;;
1610 esac
1611
1612 extra_arflags_for_target=
1613 extra_nmflags_for_target=
1614 extra_ranlibflags_for_target=
1615 target_makefile_frag=/dev/null
1616 case "${target}" in
1617   *-*-netware*)
1618     target_makefile_frag="config/mt-netware"
1619     ;;
1620   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1621     target_makefile_frag="config/mt-gnu"
1622     ;;
1623   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1624     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1625     # commands to handle both 32-bit and 64-bit objects.  These flags are
1626     # harmless if we're using GNU nm or ar.
1627     extra_arflags_for_target=" -X32_64"
1628     extra_nmflags_for_target=" -B -X32_64"
1629     ;;
1630   *-*-darwin*)
1631     # ranlib from Darwin requires the -c flag to look at common symbols.
1632     extra_ranlibflags_for_target=" -c"
1633     ;;
1634   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1635     target_makefile_frag="config/mt-wince"
1636     ;;
1637 esac
1638
1639 alphaieee_frag=/dev/null
1640 case $target in
1641   alpha*-*-*)
1642     # This just makes sure to use the -mieee option to build target libs.
1643     # This should probably be set individually by each library.
1644     alphaieee_frag="config/mt-alphaieee"
1645     ;;
1646 esac
1647
1648 # If --enable-target-optspace always use -Os instead of -O2 to build
1649 # the target libraries, similarly if it is not specified, use -Os
1650 # on selected platforms.
1651 ospace_frag=/dev/null
1652 case "${enable_target_optspace}:${target}" in
1653   yes:*)
1654     ospace_frag="config/mt-ospace"
1655     ;;
1656   :d30v-*)
1657     ospace_frag="config/mt-d30v"
1658     ;;
1659   :m32r-* | :d10v-* | :fr30-*)
1660     ospace_frag="config/mt-ospace"
1661     ;;
1662   no:* | :*)
1663     ;;
1664   *)
1665     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1666     ;;
1667 esac
1668
1669 # Default to using --with-stabs for certain targets.
1670 if test x${with_stabs} = x ; then
1671   case "${target}" in
1672   mips*-*-irix[[56]]*)
1673     ;;
1674   mips*-*-* | alpha*-*-osf*)
1675     with_stabs=yes;
1676     extra_host_args="${extra_host_args} --with-stabs"
1677     ;;
1678   esac
1679 fi
1680
1681 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1682 # them automatically.
1683 case "${host}" in
1684   hppa*64*-*-hpux11*)
1685     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1686     ;;
1687 esac
1688
1689 # Some systems (e.g., one of the i386-aix systems the gas testers are
1690 # using) don't handle "\$" correctly, so don't use it here.
1691 tooldir='${exec_prefix}'/${target_alias}
1692 build_tooldir=${tooldir}
1693
1694 # Create a .gdbinit file which runs the one in srcdir
1695 # and tells GDB to look there for source files.
1696
1697 if test -r ${srcdir}/.gdbinit ; then
1698   case ${srcdir} in
1699     .) ;;
1700     *) cat > ./.gdbinit <<EOF
1701 # ${NO_EDIT}
1702 dir ${srcdir}
1703 dir .
1704 source ${srcdir}/.gdbinit
1705 EOF
1706     ;;
1707   esac
1708 fi
1709
1710 # Make sure that the compiler is able to generate an executable.  If it
1711 # can't, we are probably in trouble.  We don't care whether we can run the
1712 # executable--we might be using a cross compiler--we only care whether it
1713 # can be created.  At this point the main configure script has set CC.
1714 we_are_ok=no
1715 echo "int main () { return 0; }" > conftest.c
1716 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1717 if test $? = 0 ; then
1718   if test -s conftest || test -s conftest.exe ; then
1719     we_are_ok=yes
1720   fi
1721 fi
1722 case $we_are_ok in
1723   no)
1724     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1725     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1726     rm -f conftest*
1727     exit 1
1728     ;;
1729 esac
1730 rm -f conftest*
1731
1732 # The Solaris /usr/ucb/cc compiler does not appear to work.
1733 case "${host}" in
1734   sparc-sun-solaris2*)
1735       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1736       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1737           could_use=
1738           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1739           if test -d /opt/cygnus/bin ; then
1740               if test "$could_use" = "" ; then
1741                   could_use="/opt/cygnus/bin"
1742               else
1743                   could_use="$could_use or /opt/cygnus/bin"
1744               fi
1745           fi
1746         if test "$could_use" = "" ; then
1747             echo "Warning: compilation may fail because you're using"
1748             echo "/usr/ucb/cc.  You should change your PATH or CC "
1749             echo "variable and rerun configure."
1750         else
1751             echo "Warning: compilation may fail because you're using"
1752             echo "/usr/ucb/cc, when you should use the C compiler from"
1753             echo "$could_use.  You should change your"
1754             echo "PATH or CC variable and rerun configure."
1755         fi
1756       fi
1757   ;;
1758 esac
1759
1760 case "${host}" in
1761   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1762   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1763   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1764 esac
1765
1766 # Record target_configdirs and the configure arguments for target and
1767 # build configuration in Makefile.
1768 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1769 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1770
1771 # Determine whether gdb needs tk/tcl or not.
1772 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1773 # and in that case we want gdb to be built without tk.  Ugh!
1774 # In fact I believe gdb is the *only* package directly dependent on tk,
1775 # so we should be able to put the 'maybe's in unconditionally and
1776 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1777 # 100% sure that that's safe though.
1778
1779 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1780 case "$enable_gdbtk" in
1781   no)
1782     GDB_TK="" ;;
1783   yes)
1784     GDB_TK="${gdb_tk}" ;;
1785   *)
1786     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1787     # distro.  Eventually someone will fix this and move Insight, nee
1788     # gdbtk to a separate directory.
1789     if test -d ${srcdir}/gdb/gdbtk ; then
1790       GDB_TK="${gdb_tk}"
1791     else
1792       GDB_TK=""
1793     fi
1794     ;;
1795 esac
1796 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1797 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1798
1799 # Strip out unwanted targets.
1800
1801 # While at that, we remove Makefiles if we were started for recursive
1802 # configuration, so that the top-level Makefile reconfigures them,
1803 # like we used to do when configure itself was recursive.
1804
1805 # Loop over modules.  $extrasub must be used with care, limiting as
1806 # much as possible the usage of range addresses.  That's because autoconf
1807 # splits the sed script to overcome limits in the number of commands,
1808 # and relying on carefully-timed sed passes may turn out to be very hard
1809 # to maintain later.  In this particular case, you just have to be careful
1810 # not to nest @if/@endif pairs, because configure will not warn you at all.
1811
1812 AC_ARG_ENABLE([bootstrap],
1813 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1814 enable_bootstrap=default)
1815
1816 # Issue errors and warnings for invalid/strange bootstrap combinations.
1817 case "$configdirs" in
1818   *gcc*) have_compiler=yes ;;
1819   *) have_compiler=no ;;
1820 esac
1821
1822 case "$have_compiler:$host:$target:$enable_bootstrap" in
1823   *:*:*:no) ;;
1824
1825   # Default behavior.  Enable bootstrap if we have a compiler
1826   # and we are in a native configuration.
1827   yes:$build:$build:default)
1828     enable_bootstrap=yes ;;
1829
1830   *:*:*:default)
1831     enable_bootstrap=no ;;
1832
1833   # We have a compiler and we are in a native configuration, bootstrap is ok
1834   yes:$build:$build:yes)
1835     ;;
1836
1837   # Other configurations, but we have a compiler.  Assume the user knows
1838   # what he's doing.
1839   yes:*:*:yes)
1840     AC_MSG_WARN([trying to bootstrap a cross compiler])
1841     ;;
1842
1843   # No compiler: if they passed --enable-bootstrap explicitly, fail
1844   no:*:*:yes)
1845     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1846
1847   # Fail if wrong command line
1848   *)
1849     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1850     ;;
1851 esac
1852
1853 # Adjust the toplevel makefile according to whether bootstrap was selected.
1854 case "$enable_bootstrap" in
1855   yes)
1856     bootstrap_suffix=bootstrap ;;
1857   no)
1858     bootstrap_suffix=no-bootstrap ;;
1859 esac
1860
1861 for module in ${build_configdirs} ; do
1862   if test -z "${no_recursion}" \
1863      && test -f ${build_subdir}/${module}/Makefile; then
1864     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1865     rm -f ${build_subdir}/${module}/Makefile
1866   fi
1867   extrasub="$extrasub
1868 /^@if build-$module\$/d
1869 /^@endif build-$module\$/d
1870 /^@if build-$module-$bootstrap_suffix\$/d
1871 /^@endif build-$module-$bootstrap_suffix\$/d"
1872 done
1873 for module in ${configdirs} ; do
1874   if test -z "${no_recursion}"; then
1875     for file in stage*-${module}/Makefile ${module}/Makefile; do
1876       if test -f ${file}; then
1877         echo 1>&2 "*** removing ${file} to force reconfigure"
1878         rm -f ${file}
1879       fi
1880     done
1881   fi
1882   extrasub="$extrasub
1883 /^@if $module\$/d
1884 /^@endif $module\$/d
1885 /^@if $module-$bootstrap_suffix\$/d
1886 /^@endif $module-$bootstrap_suffix\$/d"
1887 done
1888 for module in ${target_configdirs} ; do
1889   if test -z "${no_recursion}" \
1890      && test -f ${target_subdir}/${module}/Makefile; then
1891     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1892     rm -f ${target_subdir}/${module}/Makefile
1893   fi
1894   extrasub="$extrasub
1895 /^@if target-$module\$/d
1896 /^@endif target-$module\$/d
1897 /^@if target-$module-$bootstrap_suffix\$/d
1898 /^@endif target-$module-$bootstrap_suffix\$/d"
1899 done
1900
1901 extrasub="$extrasub
1902 /^@if /,/^@endif /d"
1903
1904 # Create the serialization dependencies.  This uses a temporary file.
1905
1906 AC_ARG_ENABLE([serial-configure],
1907 [  --enable-serial-[{host,target,build}-]configure
1908                           Force sequential configuration of
1909                           sub-packages for the host, target or build
1910                           machine, or all sub-packages])
1911
1912 case ${enable_serial_configure} in
1913   yes)
1914     enable_serial_build_configure=yes
1915     enable_serial_host_configure=yes
1916     enable_serial_target_configure=yes
1917     ;;
1918 esac
1919
1920 # These force 'configure's to be done one at a time, to avoid problems
1921 # with contention over a shared config.cache.
1922 rm -f serdep.tmp
1923 echo '# serdep.tmp' > serdep.tmp
1924 olditem=
1925 test "x${enable_serial_build_configure}" = xyes &&
1926 for item in ${build_configdirs} ; do
1927   case ${olditem} in
1928     "") ;;
1929     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1930   esac
1931   olditem=${item}
1932 done
1933 olditem=
1934 test "x${enable_serial_host_configure}" = xyes &&
1935 for item in ${configdirs} ; do
1936   case ${olditem} in
1937     "") ;;
1938     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1939   esac
1940   olditem=${item}
1941 done
1942 olditem=
1943 test "x${enable_serial_target_configure}" = xyes &&
1944 for item in ${target_configdirs} ; do
1945   case ${olditem} in
1946     "") ;;
1947     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1948   esac
1949   olditem=${item}
1950 done
1951 serialization_dependencies=serdep.tmp
1952 AC_SUBST_FILE(serialization_dependencies)
1953
1954 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1955 # target and nonopt.  These are the ones we might not want to pass
1956 # down to subconfigures.  Also strip program-prefix, program-suffix,
1957 # and program-transform-name, so that we can pass down a consistent
1958 # program-transform-name.  If autoconf has put single quotes around
1959 # any of these arguments (because they contain shell metacharacters)
1960 # then this will fail; in practice this only happens for
1961 # --program-transform-name, so be sure to override --program-transform-name
1962 # at the end of the argument list.
1963 # These will be expanded by make, so quote '$'.
1964 cat <<\EOF_SED > conftestsed
1965 s/ --no[[^ ]]*/ /g
1966 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1967 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1968 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1969 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1970 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1971 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1972 s/ -cache-file[[= ]][[^ ]]*//g
1973 s/ -srcdir[[= ]][[^ ]]*//g
1974 s/ -host[[= ]][[^ ]]*//g
1975 s/ -build[[= ]][[^ ]]*//g
1976 s/ -target[[= ]][[^ ]]*//g
1977 s/ -program-prefix[[= ]][[^ ]]*//g
1978 s/ -program-suffix[[= ]][[^ ]]*//g
1979 s/ -program-transform-name[[= ]][[^ ]]*//g
1980 s/ [[^' -][^ ]*] / /
1981 s/^ *//;s/ *$//
1982 s,\$,$$,g
1983 EOF_SED
1984 sed -f conftestsed <<EOF_SED > conftestsed.out
1985  ${ac_configure_args}
1986 EOF_SED
1987 baseargs=`cat conftestsed.out`
1988 rm -f conftestsed conftestsed.out
1989
1990 # Add in --program-transform-name, after --program-prefix and
1991 # --program-suffix have been applied to it.  Autoconf has already
1992 # doubled dollar signs and backslashes in program_transform_name; we want
1993 # the backslashes un-doubled, and then the entire thing wrapped in single
1994 # quotes, because this will be expanded first by make and then by the shell.
1995 # Also, because we want to override the logic in subdir configure scripts to
1996 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1997 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1998 ${program_transform_name}
1999 EOF_SED
2000 gcc_transform_name=`cat conftestsed.out`
2001 rm -f conftestsed.out
2002 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2003
2004 # For the build-side libraries, we just need to pretend we're native,
2005 # and not use the same cache file.  Multilibs are neither needed nor
2006 # desired.
2007 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
2008
2009 # For host modules, accept cache file option, or specification as blank.
2010 case "${cache_file}" in
2011 "") # empty
2012   cache_file_option="" ;;
2013 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2014   cache_file_option="--cache-file=${cache_file}" ;;
2015 *) # relative path
2016   cache_file_option="--cache-file=../${cache_file}" ;;
2017 esac
2018
2019 # Host dirs don't like to share a cache file either, horribly enough.
2020 # This seems to be due to autoconf 2.5x stupidity.
2021 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
2022
2023 target_configargs=${baseargs}
2024
2025 # Passing a --with-cross-host argument lets the target libraries know
2026 # whether they are being built with a cross-compiler or being built
2027 # native.  However, it would be better to use other mechanisms to make the
2028 # sorts of decisions they want to make on this basis.  Please consider
2029 # this option to be deprecated.  FIXME.
2030 if test x${is_cross_compiler} = xyes ; then
2031   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2032 fi
2033
2034 # Default to --enable-multilib.
2035 if test x${enable_multilib} = x ; then
2036   target_configargs="--enable-multilib ${target_configargs}"
2037 fi
2038
2039 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2040 # changed from the earlier setting of with_newlib.
2041 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2042   target_configargs="--with-newlib ${target_configargs}"
2043 fi
2044
2045 # Different target subdirs use different values of certain variables
2046 # (notably CXX).  Worse, multilibs use *lots* of different values.
2047 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2048 # it doesn't automatically accept command-line overrides of them.
2049 # This means it's not safe for target subdirs to share a cache file,
2050 # which is disgusting, but there you have it.  Hopefully this can be
2051 # fixed in future.  It's still worthwhile to use a cache file for each
2052 # directory.  I think.
2053
2054 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2055 # We need to pass --target, as newer autoconf's requires consistency
2056 # for target_alias and gcc doesn't manage it consistently.
2057 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2058
2059 FLAGS_FOR_TARGET=
2060 case " $target_configdirs " in
2061  *" newlib "*)
2062   case " $target_configargs " in
2063   *" --with-newlib "*)
2064    case "$target" in
2065    *-cygwin*)
2066      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' ;;
2067    esac
2068
2069    # If we're not building GCC, don't discard standard headers.
2070    if test -d ${srcdir}/gcc; then
2071      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2072
2073      if test "${build}" != "${host}"; then
2074        # On Canadian crosses, CC_FOR_TARGET will have already been set
2075        # by `configure', so we won't have an opportunity to add -Bgcc/
2076        # to it.  This is right: we don't want to search that directory
2077        # for binaries, but we want the header files in there, so add
2078        # them explicitly.
2079        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2080
2081        # Someone might think of using the pre-installed headers on
2082        # Canadian crosses, in case the installed compiler is not fully
2083        # compatible with the compiler being built.  In this case, it
2084        # would be better to flag an error than risking having
2085        # incompatible object files being constructed.  We can't
2086        # guarantee that an error will be flagged, but let's hope the
2087        # compiler will do it, when presented with incompatible header
2088        # files.
2089      fi
2090    fi
2091
2092    case "${target}-${is_cross_compiler}" in
2093    i[[3456789]]86-*-linux*-no)
2094       # Here host == target, so we don't need to build gcc,
2095       # so we don't want to discard standard headers.
2096       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2097       ;;
2098    *)
2099       # If we're building newlib, use its generic headers last, but search
2100       # for any libc-related directories first (so make it the last -B
2101       # switch).
2102       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2103       ;;
2104    esac
2105    ;;
2106   esac
2107   ;;
2108 esac
2109
2110 # Allow the user to override the flags for
2111 # our build compiler if desired.
2112 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2113
2114 # On Canadian crosses, we'll be searching the right directories for
2115 # the previously-installed cross compiler, so don't bother to add
2116 # flags for directories within the install tree of the compiler
2117 # being built; programs in there won't even run.
2118 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2119   # Search for pre-installed headers if nothing else fits.
2120   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2121 fi
2122
2123 if test "x${use_gnu_ld}" = x &&
2124    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2125   # Arrange for us to find uninstalled linker scripts.
2126   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2127 fi
2128
2129 # Search for other target-specific linker scripts and such.
2130 case "${target}" in
2131   m32c-*-* )
2132     if test -d ${srcdir}/libgloss/m32c; then
2133       # This is for crt0.o
2134       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2135       # This is for r8c.ld
2136       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2137       # This is for libnosys.a
2138       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2139     fi
2140     ;;
2141 esac
2142
2143 # Makefile fragments.
2144 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2145 do
2146   eval fragval=\$$frag
2147   if test $fragval != /dev/null; then
2148     eval $frag=${srcdir}/$fragval
2149   fi
2150 done
2151 AC_SUBST_FILE(host_makefile_frag)
2152 AC_SUBST_FILE(target_makefile_frag)
2153 AC_SUBST_FILE(alphaieee_frag)
2154 AC_SUBST_FILE(ospace_frag)
2155
2156 # Miscellanea: directories, flags, etc.
2157 AC_SUBST(RPATH_ENVVAR)
2158 AC_SUBST(tooldir)
2159 AC_SUBST(build_tooldir)
2160 AC_SUBST(CONFIGURE_GDB_TK)
2161 AC_SUBST(GDB_TK)
2162 AC_SUBST(INSTALL_GDB_TK)
2163
2164 # Build module lists & subconfigure args.
2165 AC_SUBST(build_configargs)
2166 AC_SUBST(build_configdirs)
2167
2168 # Host module lists & subconfigure args.
2169 AC_SUBST(host_configargs)
2170 AC_SUBST(configdirs)
2171
2172 # Target module lists & subconfigure args.
2173 AC_SUBST(target_configargs)
2174
2175
2176 # Build tools.
2177 AC_SUBST(CC_FOR_BUILD)
2178 AC_SUBST(config_shell)
2179
2180 # Generate default definitions for YACC, M4, LEX and other programs that run
2181 # on the build machine.  These are used if the Makefile can't locate these
2182 # programs in objdir.
2183 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2184
2185 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2186 case " $build_configdirs " in
2187   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2188   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2189 esac
2190
2191 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2192 case " $build_configdirs " in
2193   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2194 esac
2195
2196 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2197 case " $build_configdirs " in
2198   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2199 esac
2200
2201 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2202 case " $build_configdirs " in
2203   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2204   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2205 esac
2206
2207 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2208 case " $build_configdirs " in
2209   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2210 esac
2211
2212 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2213 case " $build_configdirs " in
2214   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2215   *)
2216 changequote(,)
2217     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2218     # higher, else we use the "missing" dummy.
2219     if ${MAKEINFO} --version \
2220        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2221       :
2222     else
2223       MAKEINFO="$MISSING makeinfo"
2224     fi
2225     ;;
2226 changequote([,])
2227 esac
2228
2229 # FIXME: expect and dejagnu may become build tools?
2230
2231 AC_CHECK_PROGS(EXPECT, expect, expect)
2232 case " $configdirs " in
2233   *" expect "*)
2234     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2235     ;;
2236 esac
2237
2238 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2239 case " $configdirs " in
2240   *" dejagnu "*)
2241     test $host = $build && RUNTEST='$$r/$(HOST_SUBDIR)/dejagnu/runtest'
2242     ;;
2243 esac
2244
2245
2246 # Host tools.
2247 NCN_STRICT_CHECK_TOOLS(AR, ar)
2248 NCN_STRICT_CHECK_TOOLS(AS, as)
2249 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2250 NCN_STRICT_CHECK_TOOLS(LD, ld)
2251 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2252 NCN_STRICT_CHECK_TOOLS(NM, nm)
2253 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2254 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2255 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2256 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2257 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2258 AC_SUBST(CC)
2259 AC_SUBST(CXX)
2260 AC_SUBST(CFLAGS)
2261 AC_SUBST(CFLAGS_FOR_BUILD)
2262 AC_SUBST(CXXFLAGS)
2263
2264 # Target tools.
2265 AC_ARG_WITH([build-time-tools],
2266   [  --with-build-time-tools=path
2267                           use given path to find target tools during the build],
2268   [case x"$withval" in
2269      x/*) ;;
2270      *)
2271        with_build_time_tools=
2272        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2273        ;;
2274    esac],
2275   [with_build_time_tools=])
2276
2277 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2278 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2279 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2280 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2281 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2282
2283 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2284 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2285 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2286 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2287 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2288 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2289 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2290 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2291 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2292 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2293
2294 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2295
2296 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2297 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2298 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2299 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2300                 [gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `test ! -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags || $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2301                 c++)
2302 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2303                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2304                 c++)
2305 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2306 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2307 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2308                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2309 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2310                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2311 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2312 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2313 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2314 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2315 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2316 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2317 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2318
2319 AC_SUBST(FLAGS_FOR_TARGET)
2320 AC_SUBST(RAW_CXX_FOR_TARGET)
2321
2322 # Certain tools may need extra flags.
2323 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2324 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2325 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2326
2327 # When building target libraries, except in a Canadian cross, we use
2328 # the same toolchain as the compiler we just built.
2329 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2330 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2331 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2332 if test $host = $build; then
2333   case " $configdirs " in
2334     *" gcc "*)
2335       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2336       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2337       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2338       ;;
2339   esac
2340 fi
2341
2342 AC_SUBST(COMPILER_AS_FOR_TARGET)
2343 AC_SUBST(COMPILER_LD_FOR_TARGET)
2344 AC_SUBST(COMPILER_NM_FOR_TARGET)
2345
2346 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2347 AC_ARG_ENABLE(maintainer-mode,
2348 [  --enable-maintainer-mode enable make rules and dependencies not useful
2349                           (and sometimes confusing) to the casual installer],
2350       USE_MAINTAINER_MODE=$enableval,
2351       USE_MAINTAINER_MODE=no)
2352 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2353 AC_SUBST(MAINTAINER_MODE_TRUE)
2354 AC_SUBST(MAINTAINER_MODE_FALSE)
2355 if test "$USE_MAINTAINER_MODE" = yes; then
2356   MAINTAINER_MODE_TRUE=
2357   MAINTAINER_MODE_FALSE='#'
2358 else
2359   MAINTAINER_MODE_TRUE='#'
2360   MAINTAINER_MODE_FALSE=
2361 fi
2362 MAINT=$MAINTAINER_MODE_TRUE
2363 AC_SUBST(MAINT)dnl
2364
2365 # ---------------------
2366 # GCC bootstrap support
2367 # ---------------------
2368
2369 # Stage specific cflags for build.
2370 stage1_cflags="-g"
2371 case $build in
2372   vax-*-*)
2373     case ${GCC} in
2374       yes) stage1_cflags="-g -Wa,-J" ;;
2375       *) stage1_cflags="-g -J" ;;
2376     esac ;;
2377   powerpc-*-darwin*)
2378     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2379     # sources; use -no-cpp-precomp to get to GNU cpp.
2380     # Apple's GCC has bugs in designated initializer handling, so disable
2381     # that too.
2382     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2383     ;;
2384 esac
2385 AC_SUBST(stage1_cflags)
2386
2387 # Enable -Werror in bootstrap stage2 and later.
2388 # Change the default to "no" on release branches.
2389 AC_ARG_ENABLE(werror,
2390 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2391 [enable_werror=yes])
2392 case ${enable_werror} in
2393   yes) stage2_werror_flag="--enable-werror-always" ;;
2394   *) stage2_werror_flag="" ;;
2395 esac
2396 AC_SUBST(stage2_werror_flag)
2397
2398 # Flags needed to enable html installing and building
2399 AC_ARG_WITH(datarootdir,
2400 [  --with-datarootdir   Use datarootdir as the data root directory.],
2401 [datarootdir="\${prefix}/${withval}"],
2402 [datarootdir="\${prefix}/share"])
2403
2404 AC_ARG_WITH(docdir,
2405 [  --with-docdir        Install documentation in this directory.],
2406 [docdir="\${prefix}/${withval}"],
2407 [docdir="\${datarootdir}/doc"])
2408
2409 AC_ARG_WITH(htmldir,
2410 [  --with-htmldir       Install html in this directory.],
2411 [htmldir="\${prefix}/${withval}"],
2412 [htmldir="\${docdir}"])
2413
2414 AC_SUBST(datarootdir)
2415 AC_SUBST(docdir)
2416 AC_SUBST(htmldir)
2417
2418 AC_OUTPUT(Makefile)