configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   2 #   1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   3 #
   4 # This file is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17
  18 ##############################################################################
  19 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  20
  21 sinclude(config/acx.m4)
  22
  23 AC_INIT(move-if-change)
  24 AC_PREREQ(2.13)
  25 AC_CANONICAL_SYSTEM
  26 AC_ARG_PROGRAM
  27
  28 # Get 'install' or 'install-sh' and its variants.
  29 AC_PROG_INSTALL
  30 ACX_PROG_LN
  31 AC_PROG_LN_S
  32
  33 ### we might need to use some other shell than /bin/sh for running subshells
  34 ### If we are on Windows, search for the shell.  This will permit people
  35 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  36 ### without also having to set CONFIG_SHELL.  This code will work when
  37 ### using bash, which sets OSTYPE.
  38 case "${OSTYPE}" in
  39 *win32*)
  40   if test x${CONFIG_SHELL} = x ; then
  41     if test ! -f /bin/sh ; then
  42       if test x${SHELL} != x && test -f ${SHELL} ; then
  43         CONFIG_SHELL=${SHELL}
  44         export CONFIG_SHELL
  45       else
  46         for prog in sh sh.exe bash bash.exe; do
  47           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  48           for dir in $PATH; do
  49             test -z "$dir" && dir=.
  50             if test -f $dir/$prog; then
  51               CONFIG_SHELL=$dir/$prog
  52               export CONFIG_SHELL
  53               break
  54             fi
  55           done
  56           IFS="$save_ifs"
  57           test -n "${CONFIG_SHELL}" && break
  58         done
  59       fi
  60     fi
  61   fi
  62   ;;
  63 esac
  64
  65 config_shell=${CONFIG_SHELL-/bin/sh}
  66
  67 progname=$0
  68 # if PWD already has a value, it is probably wrong.
  69 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  70
  71 # Export original configure arguments for use by sub-configures.  These
  72 # will be expanded by make, so quote '$'.
  73 tmp="$progname $@"
  74 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
  75 $tmp
  76 EOF_SED
  77 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
  78 rm -f conftestsed.out
  79 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  80
  81 moveifchange=${srcdir}/move-if-change
  82
  83 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  84
  85 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
  86 # a relative path.
  87 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
  88   INSTALL="${srcpwd}/install-sh -c"
  89 fi
  90
  91 # Set srcdir to "." if that's what it is.
  92 # This is important for multilib support.
  93 pwd=`${PWDCMD-pwd}`
  94 if test "${pwd}" = "${srcpwd}" ; then
  95   srcdir=.
  96 fi
  97
  98 topsrcdir=$srcpwd
  99
 100 extra_host_args=
 101
 102 ### To add a new directory to the tree, first choose whether it is a target
 103 ### or a host dependent tool.  Then put it into the appropriate list
 104 ### (library or tools, host or target), doing a dependency sort.
 105
 106 # Subdirs will be configured in the order listed in build_configdirs,
 107 # configdirs, or target_configdirs; see the serialization section below.
 108
 109 # Dependency sorting is only needed when *configuration* must be done in
 110 # a particular order.  In all cases a dependency should be specified in
 111 # the Makefile, whether or not it's implicitly specified here.
 112
 113 # Double entries in build_configdirs, configdirs, or target_configdirs may
 114 # cause circular dependencies and break everything horribly.
 115
 116 # these library is used by various programs built for the build
 117 # environment
 118 #
 119 build_libs="build-libiberty"
 120
 121 # these tools are built for the build environment
 122 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 123
 124 # these libraries are used by various programs built for the host environment
 125 #
 126 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber"
 127
 128 # these tools are built for the host environment
 129 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 130 # know that we are building the simulator.
 131 # binutils, gas and ld appear in that order because it makes sense to run
 132 # "make check" in that particular order.
 133 host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils gettext zip fastjar gnattools"
 134
 135 # libgcj represents the runtime libraries only used by gcj.
 136 libgcj="target-libffi \
 137         target-boehm-gc \
 138         target-zlib \
 139         target-qthreads \
 140         target-libjava"
 141
 142 # these libraries are built for the target environment, and are built after
 143 # the host libraries and the host tools (which may be a cross compiler)
 144 #
 145 target_libraries="target-libiberty \
 146                 target-libgloss \
 147                 target-newlib \
 148                 target-libstdc++-v3 \
 149                 target-libmudflap \
 150                 target-libssp \
 151                 target-libgfortran \
 152                 ${libgcj} \
 153                 target-libobjc \
 154                 target-libada"
 155
 156 # these tools are built using the target libraries, and are intended to
 157 # run only in the target environment
 158 #
 159 # note: any program that *uses* libraries that are in the "target_libraries"
 160 # list belongs in this list.  those programs are also very likely
 161 # candidates for the "native_only" list which follows
 162 #
 163 target_tools="target-examples target-groff target-gperf target-rda"
 164
 165 ################################################################################
 166
 167 ## All tools belong in one of the four categories, and are assigned above
 168 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 169 ## is important because configure will choke if they ever get through.
 170 ## ${configdirs} is directories we build using the host tools.
 171 ## ${target_configdirs} is directories we build using the target tools.
 172 configdirs=`echo ${host_libs} ${host_tools}`
 173 target_configdirs=`echo ${target_libraries} ${target_tools}`
 174 build_configdirs=`echo ${build_libs} ${build_tools}`
 175
 176 ################################################################################
 177
 178 srcname="gnu development package"
 179
 180 # This gets set non-empty for some net releases of packages.
 181 appdirs=""
 182
 183 # Define is_cross_compiler to save on calls to 'test'.
 184 is_cross_compiler=
 185 if test x"${host}" = x"${target}" ; then
 186   is_cross_compiler=no
 187 else
 188   is_cross_compiler=yes
 189 fi
 190
 191 # Find the build and target subdir names.
 192 GCC_TOPLEV_SUBDIRS
 193
 194 # Skipdirs are removed silently.
 195 skipdirs=
 196 # Noconfigdirs are removed loudly.
 197 noconfigdirs=""
 198
 199 use_gnu_ld=
 200 # Make sure we don't let GNU ld be added if we didn't want it.
 201 if test x$with_gnu_ld = xno ; then
 202   use_gnu_ld=no
 203   noconfigdirs="$noconfigdirs ld"
 204 fi
 205
 206 use_gnu_as=
 207 # Make sure we don't let GNU as be added if we didn't want it.
 208 if test x$with_gnu_as = xno ; then
 209   use_gnu_as=no
 210   noconfigdirs="$noconfigdirs gas"
 211 fi
 212
 213 # some tools are so dependent upon X11 that if we're not building with X,
 214 # it's not even worth trying to configure, much less build, that tool.
 215
 216 case ${with_x} in
 217   yes | "") ;; # the default value for this tree is that X11 is available
 218   no)
 219     skipdirs="${skipdirs} tk itcl libgui"
 220     # We won't be able to build gdbtk without X.
 221     enable_gdbtk=no
 222     ;;
 223   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 224 esac
 225
 226 # Some tools are only suitable for building in a "native" situation.
 227 # Remove these if host!=target.
 228 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff gprof target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 229
 230 # Similarly, some are only suitable for cross toolchains.
 231 # Remove these if host=target.
 232 cross_only="target-libgloss target-newlib target-opcodes"
 233
 234 case $is_cross_compiler in
 235   no) skipdirs="${skipdirs} ${cross_only}" ;;
 236   yes) skipdirs="${skipdirs} ${native_only}" ;;
 237 esac
 238
 239 # If both --with-headers and --with-libs are specified, default to
 240 # --without-newlib.
 241 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 242    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 243   if test x"${with_newlib}" = x ; then
 244     with_newlib=no
 245   fi
 246 fi
 247
 248 # Recognize --with-newlib/--without-newlib.
 249 case ${with_newlib} in
 250   no) skipdirs="${skipdirs} target-newlib" ;;
 251   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 252 esac
 253
 254 # Configure extra directories which are host specific
 255
 256 case "${host}" in
 257   *-cygwin*)
 258     configdirs="$configdirs libtermcap" ;;
 259 esac
 260
 261 # A target can indicate whether a language isn't supported for some reason.
 262 # Only spaces may be used in this macro; not newlines or tabs.
 263 unsupported_languages=
 264
 265 # Remove more programs from consideration, based on the host or
 266 # target this usually means that a port of the program doesn't
 267 # exist yet.
 268
 269 case "${host}" in
 270   hppa*64*-*-*)
 271     noconfigdirs="$noconfigdirs byacc"
 272     ;;
 273   i[[3456789]]86-*-vsta)
 274     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 275     ;;
 276   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 277     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 278     ;;
 279   i[[3456789]]86-*-mingw32*)
 280     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 281     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 282     ;;
 283   i[[3456789]]86-*-beos*)
 284     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 285     ;;
 286   *-*-cygwin*)
 287     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 288     ;;
 289   *-*-netbsd*)
 290     noconfigdirs="$noconfigdirs rcs"
 291     ;;
 292   ppc*-*-pe)
 293     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 294     ;;
 295   powerpc-*-beos*)
 296     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 297     ;;
 298 esac
 299
 300
 301 AC_ARG_ENABLE(libada,
 302 [  --enable-libada        Builds libada directory],
 303 ENABLE_LIBADA=$enableval,
 304 ENABLE_LIBADA=yes)
 305 if test "${ENABLE_LIBADA}" != "yes" ; then
 306   noconfigdirs="$noconfigdirs target-libada"
 307   noconfigdirs="$noconfigdirs gnattools"
 308 fi
 309
 310 AC_ARG_ENABLE(libssp,
 311 [  --enable-libssp        Builds libssp directory],
 312 ENABLE_LIBSSP=$enableval,
 313 ENABLE_LIBSSP=yes)
 314 if test "${ENABLE_LIBSSP}" != "yes" ; then
 315   noconfigdirs="$noconfigdirs target-libssp"
 316 fi
 317
 318 # Save it here so that, even in case of --enable-libgcj, if the Java
 319 # front-end isn't enabled, we still get libgcj disabled.
 320 libgcj_saved=$libgcj
 321 case $enable_libgcj in
 322 yes)
 323   # If we reset it here, it won't get added to noconfigdirs in the
 324   # target-specific build rules, so it will be forcibly enabled
 325   # (unless the Java language itself isn't enabled).
 326   libgcj=
 327   ;;
 328 no)
 329   # Make sure we get it printed in the list of not supported target libs.
 330   noconfigdirs="$noconfigdirs ${libgcj}"
 331   ;;
 332 esac
 333
 334
 335 # Allow --disable-libmudflap to exclude target-libmudflap
 336 case $enable_libmudflap in
 337 yes)
 338     ;;
 339 no)
 340     noconfigdirs="$noconfigdirs target-libmudflap"
 341     ;;
 342 "")
 343     case "${target}" in
 344     *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
 345         # Enable libmudflap by default in GNU and friends.
 346         ;;
 347     *-*-freebsd*)
 348         # Enable libmudflap by default in FreeBSD.
 349         ;;
 350     *)
 351         # Disable it by default everywhere else.
 352         noconfigdirs="$noconfigdirs target-libmudflap"
 353         ;;
 354     esac
 355 esac
 356
 357
 358 case "${target}" in
 359   *-*-chorusos)
 360     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 361     ;;
 362   powerpc-*-darwin*)
 363     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 364     noconfigdirs="$noconfigdirs sim target-rda"
 365     ;;
 366   *-*-darwin*)
 367     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 368     noconfigdirs="$noconfigdirs sim target-rda"
 369     noconfigdirs="$noconfigdirs ${libgcj}"
 370     ;;
 371   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 372     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 373     ;;
 374   *-*-freebsd*)
 375     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 376     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 377         && test -f /usr/local/include/gmp.h; then
 378       with_gmp=/usr/local
 379     fi
 380
 381     # Skip some stuff that's unsupported on some FreeBSD configurations.
 382     case "${target}" in
 383       i*86-*-*) ;;
 384       alpha*-*-*) ;;
 385       *)
 386         noconfigdirs="$noconfigdirs ${libgcj}"
 387         ;;
 388     esac
 389     ;;
 390   *-*-kaos*)
 391     # Remove unsupported stuff on all kaOS configurations.
 392     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 393     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 394     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 395     noconfigdirs="$noconfigdirs target-libgloss"
 396     ;;
 397   *-*-netbsd*)
 398     # Skip some stuff on all NetBSD configurations.
 399     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 400
 401     # Skip some stuff that's unsupported on some NetBSD configurations.
 402     case "${target}" in
 403       i*86-*-netbsdelf*) ;;
 404       arm*-*-netbsdelf*) ;;
 405       *)
 406         noconfigdirs="$noconfigdirs ${libgcj}"
 407         ;;
 408     esac
 409     ;;
 410   *-*-netware*)
 411     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 412     ;;
 413   *-*-rtems*)
 414     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 415     ;;
 416     # The tpf target doesn't support gdb yet.
 417   *-*-tpf*)
 418     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 419     ;;
 420   *-*-uclinux*)
 421     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 422     ;;
 423   *-*-vxworks*)
 424     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 425     ;;
 426   m32c-*-*)
 427     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 428     ;;
 429   alpha*-dec-osf*)
 430     # ld works, but does not support shared libraries.
 431     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 432     # gas doesn't generate exception information.
 433     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 434     ;;
 435   alpha*-*-*vms*)
 436     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 437     ;;
 438   alpha*-*-linux*)
 439     # newlib is not 64 bit ready
 440     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 441     ;;
 442   alpha*-*-*)
 443     # newlib is not 64 bit ready
 444     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 445     ;;
 446   am33_2.0-*-linux*)
 447     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 448     ;;
 449   sh-*-linux*)
 450     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 451     ;;
 452   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 453     noconfigdirs="$noconfigdirs ${libgcj}"
 454     noconfigdirs="$noconfigdirs target-examples"
 455     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 456     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 457     noconfigdirs="$noconfigdirs expect dejagnu"
 458     # the C++ libraries don't build on top of CE's C libraries
 459     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 460     noconfigdirs="$noconfigdirs target-newlib"
 461     case "${host}" in
 462       *-*-cygwin*) ;; # keep gdb and readline
 463       *) noconfigdirs="$noconfigdirs gdb readline"
 464          ;;
 465     esac
 466     ;;
 467   arc-*-*)
 468     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 469     ;;
 470   arm-semi-aof )
 471     ;;
 472   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 473     noconfigdirs="$noconfigdirs ${libgcj}"
 474     ;;
 475   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 476     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 477     ;;
 478   arm*-*-linux-gnueabi)
 479     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 480     noconfigdirs="$noconfigdirs target-libjava target-libobjc"
 481     ;;
 482   arm*-*-symbianelf*)
 483     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 484     ;;
 485   arm-*-pe*)
 486     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 487     ;;
 488   thumb-*-coff)
 489     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 490     ;;
 491   thumb-*-elf)
 492     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 493     ;;
 494   thumb-*-pe)
 495     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 496     ;;
 497   arm-*-riscix*)
 498     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 499     ;;
 500   avr-*-*)
 501     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 502     ;;
 503   bfin-*-*)
 504     noconfigdirs="$noconfigdirs target-libgloss gdb"
 505     if test x${is_cross_compiler} != xno ; then
 506       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 507     fi
 508     ;;
 509   c4x-*-* | tic4x-*-*)
 510     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 511     ;;
 512   c54x*-*-* | tic54x-*-*)
 513     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 514     ;;
 515   cris-*-* | crisv32-*-*)
 516     unsupported_languages="$unsupported_languages java"
 517     case "${target}" in
 518       *-*-aout)
 519         unsupported_languages="$unsupported_languages fortran"
 520         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 521       *-*-elf)
 522         unsupported_languages="$unsupported_languages fortran"
 523         noconfigdirs="$noconfigdirs target-boehm-gc";;
 524       *-*-linux*)
 525         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 526       *)
 527         unsupported_languages="$unsupported_languages fortran"
 528         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 529     esac
 530     ;;
 531   crx-*-*)
 532     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 533     ;;
 534   d10v-*-*)
 535     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 536     ;;
 537   d30v-*-*)
 538     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 539     ;;
 540   fr30-*-elf*)
 541     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 542     ;;
 543   frv-*-*)
 544     noconfigdirs="$noconfigdirs ${libgcj}"
 545     ;;
 546   h8300*-*-*)
 547     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 548     ;;
 549   h8500-*-*)
 550     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 551     ;;
 552   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 553     ;;
 554   hppa*64*-*-linux* | parisc*64*-*-linux*)
 555     # In this case, it's because the hppa64-linux target is for
 556     # the kernel only at this point and has no libc, and thus no
 557     # headers, crt*.o, etc., all of which are needed by these.
 558     noconfigdirs="$noconfigdirs target-zlib"
 559     ;;
 560   parisc*-*-linux* | hppa*-*-linux*)
 561     ;;
 562   hppa*-*-*elf* | \
 563   hppa*-*-lites* | \
 564   hppa*-*-openbsd* | \
 565   hppa*64*-*-*)
 566     noconfigdirs="$noconfigdirs ${libgcj}"
 567     ;;
 568   hppa*-*-*)
 569     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 570     # build on HP-UX 10.20.
 571     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 572     ;;
 573   i960-*-*)
 574     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 575     ;;
 576   ia64*-*-elf*)
 577     # No gdb support yet.
 578     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 579     ;;
 580   ia64*-**-hpux*)
 581     # No gdb or ld support yet.
 582     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 583     ;;
 584   i370-*-opened*)
 585     ;;
 586   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 587     noconfigdirs="$noconfigdirs ${libgcj}"
 588     ;;
 589   i[[3456789]]86-*-linux*)
 590     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 591     # not build java stuff by default.
 592     case "${target}" in
 593       *-*-*libc1*)
 594         noconfigdirs="$noconfigdirs ${libgcj}";;
 595     esac
 596
 597     # This section makes it possible to build newlib natively on linux.
 598     # If we are using a cross compiler then don't configure newlib.
 599     if test x${is_cross_compiler} != xno ; then
 600       noconfigdirs="$noconfigdirs target-newlib"
 601     fi
 602     noconfigdirs="$noconfigdirs target-libgloss"
 603     # If we are not using a cross compiler, do configure newlib.
 604     # Note however, that newlib will only be configured in this situation
 605     # if the --with-newlib option has been given, because otherwise
 606     # 'target-newlib' will appear in skipdirs.
 607     ;;
 608   i[[3456789]]86-*-mingw32*)
 609     target_configdirs="$target_configdirs target-mingw"
 610     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 611
 612     # Can't build gdb for mingw32 if not native.
 613     case "${host}" in
 614       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 615       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 616          ;;
 617     esac
 618     ;;
 619   *-*-cygwin*)
 620     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 621     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 622     # always build newlib if winsup directory is present.
 623     if test -d "$srcdir/winsup"; then
 624       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 625     elif test -d "$srcdir/newlib"; then
 626       echo "Warning: winsup is missing so newlib can't be built."
 627     fi
 628
 629     # Can't build gdb for Cygwin if not native.
 630     case "${host}" in
 631       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 632       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 633          ;;
 634     esac
 635     ;;
 636   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 637   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 638     ;;
 639   i[[3456789]]86-*-pe)
 640     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 641     ;;
 642   i[[3456789]]86-*-sco3.2v5*)
 643     # The linker does not yet know about weak symbols in COFF,
 644     # and is not configured to handle mixed ELF and COFF.
 645     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 646     ;;
 647   i[[3456789]]86-*-sco*)
 648     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 649     ;;
 650   i[[3456789]]86-*-solaris2*)
 651     noconfigdirs="$noconfigdirs target-libgloss"
 652     ;;
 653   i[[3456789]]86-*-sysv4*)
 654     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 655     ;;
 656   i[[3456789]]86-*-beos*)
 657     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 658     ;;
 659   m32r-*-*)
 660     noconfigdirs="$noconfigdirs ${libgcj}"
 661     ;;
 662   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 663     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 664     ;;
 665   m68k-*-elf*)
 666     noconfigdirs="$noconfigdirs ${libgcj}"
 667     ;;
 668   m68k-*-coff*)
 669     noconfigdirs="$noconfigdirs ${libgcj}"
 670     ;;
 671   mcore-*-pe*)
 672   # The EPOC C++ environment does not support exceptions or rtti,
 673   # and so building libstdc++-v3 tends not to always work.
 674     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 675     ;;
 676   mmix-*-*)
 677     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 678     unsupported_languages="$unsupported_languages fortran java"
 679     ;;
 680   mn10200-*-*)
 681     noconfigdirs="$noconfigdirs ${libgcj}"
 682     ;;
 683   mn10300-*-*)
 684     noconfigdirs="$noconfigdirs ${libgcj}"
 685     ;;
 686   mt-*-*)
 687     noconfigdirs="$noconfigdirs sim"
 688     ;;
 689   powerpc-*-aix*)
 690     # copied from rs6000-*-* entry
 691     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 692     ;;
 693   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 694     target_configdirs="$target_configdirs target-winsup"
 695     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 696     # always build newlib.
 697     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 698     ;;
 699     # This is temporary until we can link against shared libraries
 700   powerpcle-*-solaris*)
 701     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 702     ;;
 703   powerpc-*-beos*)
 704     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 705     ;;
 706   powerpc-*-eabi)
 707     noconfigdirs="$noconfigdirs ${libgcj}"
 708     ;;
 709   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 710     ;;
 711   rs6000-*-lynxos*)
 712     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 713     ;;
 714   rs6000-*-aix*)
 715     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 716     ;;
 717   rs6000-*-*)
 718     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 719     ;;
 720   m68k-apollo-*)
 721     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 722     ;;
 723   mips*-*-irix5*)
 724     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 725     ;;
 726   mips*-*-irix6*)
 727     # Linking libjava exceeds command-line length limits on at least
 728     # IRIX 6.2, but not on IRIX 6.5.
 729     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 730     # <oldham@codesourcery.com>
 731     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 732     ;;
 733   mips*-dec-bsd*)
 734     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 735     ;;
 736   mips*-*-bsd*)
 737     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 738     ;;
 739   mipstx39-*-*)
 740     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 741     ;;
 742   mips64*-*-linux*)
 743     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 744     ;;
 745   mips*-*-linux*)
 746     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 747     ;;
 748   mips*-*-*)
 749     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 750     ;;
 751   romp-*-*)
 752     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 753     ;;
 754   sh-*-* | sh64-*-*)
 755     case "${host}" in
 756       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 757       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 758       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 759       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 760     esac
 761     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 762     ;;
 763   sparc-*-elf*)
 764     noconfigdirs="$noconfigdirs ${libgcj}"
 765     ;;
 766   sparc64-*-elf*)
 767     noconfigdirs="$noconfigdirs ${libgcj}"
 768     ;;
 769   sparclite-*-*)
 770     noconfigdirs="$noconfigdirs ${libgcj}"
 771     ;;
 772   sparc-*-sunos4*)
 773     noconfigdirs="$noconfigdirs ${libgcj}"
 774     if test x${is_cross_compiler} != xno ; then
 775            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 776     else
 777            use_gnu_ld=no
 778     fi
 779     ;;
 780   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 781     noconfigdirs="$noconfigdirs ${libgcj}"
 782     ;;
 783   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 784     ;;
 785   v810-*-*)
 786     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 787     ;;
 788   v850-*-*)
 789     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 790     ;;
 791   v850e-*-*)
 792     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 793     ;;
 794   v850ea-*-*)
 795     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 796     ;;
 797   vax-*-vms)
 798     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 799     ;;
 800   vax-*-*)
 801     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 802     ;;
 803   xtensa-*-*)
 804     noconfigdirs="$noconfigdirs ${libgcj}"
 805     ;;
 806   ip2k-*-*)
 807     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 808     ;;
 809   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 810     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 811     ;;
 812   *-*-lynxos*)
 813     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 814     ;;
 815   *-*-*)
 816     noconfigdirs="$noconfigdirs ${libgcj}"
 817     ;;
 818 esac
 819
 820 # If we aren't building newlib, then don't build libgloss, since libgloss
 821 # depends upon some newlib header files.
 822 case "${noconfigdirs}" in
 823   *target-libgloss*) ;;
 824   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 825 esac
 826
 827 # Work in distributions that contain no compiler tools, like Autoconf.
 828 tentative_cc=""
 829 host_makefile_frag=/dev/null
 830 if test -d ${srcdir}/config ; then
 831 case "${host}" in
 832   m68k-hp-hpux*)
 833     # Avoid "too much defining" errors from HPUX compiler.
 834     tentative_cc="cc -Wp,-H256000"
 835     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 836     # If it's HP/UX ar, this should be harmless.
 837     RANLIB="ar ts"
 838     ;;
 839   m68k-apollo-sysv*)
 840     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 841     ;;
 842   m68k-apollo-bsd*)
 843     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 844     # chokes on bfd, the compiler won't let you assign integers to enums, and
 845     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 846     # the apollo compiler" (the preferred version of GCC could be called cc,
 847     # or whatever), but I'm not sure leaving CC as cc is any better...
 848     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 849     # Used to have BISON=yacc.
 850     tentative_cc=gcc
 851     ;;
 852   m88k-dg-dgux*)
 853     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 854     ;;
 855   m88k-harris-cxux*)
 856     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 857     tentative_cc="cc -Xa"
 858     host_makefile_frag="config/mh-cxux"
 859     ;;
 860   m88k-motorola-sysv*)
 861     ;;
 862   mips*-dec-ultrix*)
 863     tentative_cc="cc -Wf,-XNg1000"
 864     host_makefile_frag="config/mh-decstation"
 865     ;;
 866   mips*-nec-sysv4*)
 867     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 868     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 869     host_makefile_frag="config/mh-necv4"
 870     ;;
 871   mips*-sgi-irix4*)
 872     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 873     # environment.  Also bump switch table size so that cp-parse will
 874     # compile.  Bump string length limit so linker builds.
 875     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 876     ;;
 877   mips*-*-sysv4*)
 878     host_makefile_frag="config/mh-sysv4"
 879     ;;
 880   mips*-*-sysv*)
 881     # This is for a MIPS running RISC/os 4.52C.
 882
 883     # This is needed for GDB, but needs to be in the top-level make because
 884     # if a library is compiled with the bsd headers and gets linked with the
 885     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 886     # a different size).
 887     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 888     # known except to select the sysv environment.  Could we use /proc instead?
 889     # These "sysv environments" and "bsd environments" often end up being a pain.
 890     #
 891     # This is not part of CFLAGS because perhaps not all C compilers have this
 892     # option.
 893     tentative_cc="cc -systype sysv"
 894     ;;
 895   i370-ibm-opened*)
 896     tentative_cc="c89"
 897     ;;
 898   i[[3456789]]86-*-sysv5*)
 899     host_makefile_frag="config/mh-sysv5"
 900     ;;
 901   i[[3456789]]86-*-dgux*)
 902     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 903     host_makefile_frag="config/mh-dgux386"
 904     ;;
 905   i[[3456789]]86-ncr-sysv4.3*)
 906     # The MetaWare compiler will generate a copyright message unless you
 907     # turn it off by adding the -Hnocopyr flag.
 908     tentative_cc="cc -Hnocopyr"
 909     ;;
 910   i[[3456789]]86-ncr-sysv4*)
 911     # for an NCR 3000 (i486/SVR4) system.
 912     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 913     # This compiler not only emits obnoxious copyright messages every time
 914     # you run it, but it chokes and dies on a whole bunch of GNU source
 915     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 916     tentative_cc="/usr/ccs/ATT/cc"
 917     host_makefile_frag="config/mh-ncr3000"
 918     ;;
 919   i[[3456789]]86-*-sco3.2v5*)
 920     ;;
 921   i[[3456789]]86-*-sco*)
 922     # The native C compiler botches some simple uses of const.  Unfortunately,
 923     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 924     tentative_cc="cc -Dconst="
 925     host_makefile_frag="config/mh-sco"
 926     ;;
 927   i[[3456789]]86-*-udk*)
 928     host_makefile_frag="config/mh-sysv5"
 929     ;;
 930   i[[3456789]]86-*-solaris2*)
 931     host_makefile_frag="config/mh-sysv4"
 932     ;;
 933   i[[3456789]]86-*-msdosdjgpp*)
 934     host_makefile_frag="config/mh-djgpp"
 935     ;;
 936   *-cygwin*)
 937     host_makefile_frag="config/mh-cygwin"
 938     ;;
 939   *-mingw32*)
 940     ;;
 941   *-interix*)
 942     host_makefile_frag="config/mh-interix"
 943     ;;
 944   vax-*-ultrix2*)
 945     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 946     tentative_cc=gcc
 947     ;;
 948   *-*-solaris2*)
 949     host_makefile_frag="config/mh-solaris"
 950     ;;
 951   m68k-sun-sunos*)
 952     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 953     # without overflowing the jump tables (-J says to use a 32 bit table)
 954     tentative_cc="cc -J"
 955     ;;
 956   *-hp-hpux*)
 957     tentative_cc="cc -Wp,-H256000"
 958     ;;
 959   *-*-hiux*)
 960     tentative_cc="cc -Wp,-H256000"
 961     ;;
 962   rs6000-*-lynxos*)
 963     # /bin/cc is less than useful for our purposes.  Always use GCC
 964     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 965     host_makefile_frag="config/mh-lynxrs6k"
 966     ;;
 967   powerpc-*-darwin*)
 968     host_makefile_frag="config/mh-ppc-darwin"
 969     ;;
 970   *-*-lynxos*)
 971     # /bin/cc is less than useful for our purposes.  Always use GCC
 972     tentative_cc="/bin/gcc"
 973     ;;
 974   *-*-sysv4*)
 975     host_makefile_frag="config/mh-sysv4"
 976     ;;
 977   # This is placed last to prevent interfering with the cases above.
 978   i[[3456789]]86-*-*)
 979     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 980     host_makefile_frag="config/mh-x86omitfp"
 981     ;;
 982 esac
 983 fi
 984
 985 # If we aren't going to be using gcc, see if we can extract a definition
 986 # of CC from the fragment.
 987 # Actually, use the 'pre-extracted' version above.
 988 if test -z "${CC}" && test "${build}" = "${host}" ; then
 989   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 990   found=
 991   for dir in $PATH; do
 992     test -z "$dir" && dir=.
 993     if test -f $dir/gcc; then
 994       found=yes
 995       break
 996     fi
 997   done
 998   IFS="$save_ifs"
 999   if test -z "${found}" && test -n "${tentative_cc}" ; then
1000     CC=$tentative_cc
1001   fi
1002 fi
1003
1004 if test "${build}" != "${host}" ; then
1005   # If we are doing a Canadian Cross, in which the host and build systems
1006   # are not the same, we set reasonable default values for the tools.
1007
1008   CC=${CC-${host_alias}-gcc}
1009   CFLAGS=${CFLAGS-"-g -O2"}
1010   CXX=${CXX-${host_alias}-c++}
1011   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1012   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1013   BUILD_PREFIX=${build_alias}-
1014   BUILD_PREFIX_1=${build_alias}-
1015
1016 else
1017   # Set reasonable default values for some tools even if not Canadian.
1018   # Of course, these are different reasonable default values, originally
1019   # specified directly in the Makefile.
1020   # We don't export, so that autoconf can do its job.
1021   # Note that all these settings are above the fragment inclusion point
1022   # in Makefile.in, so can still be overridden by fragments.
1023   # This is all going to change when we autoconfiscate...
1024
1025   CC_FOR_BUILD="\$(CC)"
1026   BUILD_PREFIX=
1027   BUILD_PREFIX_1=loser-
1028
1029   AC_PROG_CC
1030
1031   # We must set the default linker to the linker used by gcc for the correct
1032   # operation of libtool.  If LD is not defined and we are using gcc, try to
1033   # set the LD default to the ld used by gcc.
1034   if test -z "$LD"; then
1035     if test "$GCC" = yes; then
1036       case $build in
1037       *-*-mingw*)
1038         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1039       *)
1040         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1041       esac
1042       case $gcc_prog_ld in
1043       # Accept absolute paths.
1044       [[\\/]* | [A-Za-z]:[\\/]*)]
1045         LD="$gcc_prog_ld" ;;
1046       esac
1047     fi
1048   fi
1049
1050   CXX=${CXX-"c++"}
1051   CFLAGS=${CFLAGS-"-g"}
1052   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1053 fi
1054
1055 ACX_PROG_GNAT
1056 ACX_PROG_CMP_IGNORE_INITIAL
1057
1058 # Check for GMP and MPFR
1059 gmplibs=
1060 gmpinc=
1061 have_gmp=yes
1062 # Specify a location for mpfr
1063 # check for this first so it ends up on the link line before gmp.
1064 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1065
1066 if test "x$with_mpfr_dir" != x; then
1067   gmpinc="-I$with_mpfr_dir"
1068   gmplibs="$with_mpfr_dir/libmpfr.a"
1069 else
1070   gmplibs="-lmpfr"
1071 fi
1072
1073 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1074
1075 if test "x$with_mpfr" != x; then
1076   gmplibs="-L$with_mpfr/lib $gmplibs"
1077   gmpinc="-I$with_mpfr/include"
1078 fi
1079
1080 # Specify a location for gmp
1081 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1082
1083 if test "x$with_gmp_dir" != x; then
1084   gmpinc="$gmpinc -I$with_gmp_dir"
1085   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1086     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1087   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1088     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1089   fi
1090   # One of the later tests will catch the error if neither library is present.
1091 else
1092   gmplibs="$gmplibs -lgmp"
1093 fi
1094
1095 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1096
1097 if test "x$with_gmp" != x; then
1098   gmplibs="-L$with_gmp/lib $gmplibs"
1099   gmpinc="-I$with_gmp/include $gmpinc"
1100 fi
1101
1102 saved_CFLAGS="$CFLAGS"
1103 CFLAGS="$CFLAGS $gmpinc"
1104 # Check GMP actually works
1105 AC_MSG_CHECKING([for correct version of gmp.h])
1106 AC_TRY_COMPILE([#include "gmp.h"],[
1107 #if __GNU_MP_VERSION < 3
1108 choke me
1109 #endif
1110 ], [AC_MSG_RESULT([yes])],
1111   [AC_MSG_RESULT([no]); have_gmp=no])
1112
1113 if test x"$have_gmp" = xyes; then
1114   AC_MSG_CHECKING([for MPFR])
1115
1116   saved_LIBS="$LIBS"
1117   LIBS="$LIBS $gmplibs"
1118   AC_TRY_LINK([#include <gmp.h>
1119 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1120     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1121   LIBS="$saved_LIBS"
1122   CFLAGS="$saved_CFLAGS"
1123 fi
1124
1125 # Flags needed for both GMP and/or MPFR
1126 AC_SUBST(gmplibs)
1127 AC_SUBST(gmpinc)
1128
1129 # By default, C is the only stage 1 language.
1130 stage1_languages=c
1131 AC_SUBST(stage1_languages)
1132
1133 # Figure out what language subdirectories are present.
1134 # Look if the user specified --enable-languages="..."; if not, use
1135 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1136 # go away some day.
1137 # NB:  embedded tabs in this IF block -- do not untabify
1138 if test -d ${srcdir}/gcc; then
1139   if test x"${enable_languages+set}" != xset; then
1140     if test x"${LANGUAGES+set}" = xset; then
1141       enable_languages="${LANGUAGES}"
1142         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1143     else
1144       enable_languages=all
1145     fi
1146   else
1147     if test x"${enable_languages}" = x ||
1148        test x"${enable_languages}" = xyes;
1149        then
1150       echo configure.in: --enable-languages needs at least one language argument 1>&2
1151       exit 1
1152     fi
1153   fi
1154   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1155
1156   # 'f95' is the old name for the 'fortran' language. We issue a warning
1157   # and make the substitution.
1158   case ,${enable_languages}, in
1159     *,f95,*)
1160       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1161       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1162       ;;
1163   esac
1164
1165   # First scan to see if an enabled language requires some other language.
1166   # We assume that a given config-lang.in will list all the language
1167   # front ends it requires, even if some are required indirectly.
1168   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1169     case ${lang_frag} in
1170       ..) ;;
1171       # The odd quoting in the next line works around
1172       # an apparent bug in bash 1.12 on linux.
1173       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1174       *)
1175         # From the config-lang.in, get $language, $lang_requires
1176         language=
1177         lang_requires=
1178         . ${lang_frag}
1179         for other in ${lang_requires} ; do
1180           case ,${enable_languages}, in
1181             *,$other,*) ;;
1182             *,all,*) ;;
1183             *,$language,*)
1184               echo " \`$other' language required by \`$language'; enabling" 1>&2
1185               enable_languages="${enable_languages},${other}"
1186               ;;
1187           esac
1188         done
1189         ;;
1190     esac
1191   done
1192
1193   new_enable_languages=c
1194   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1195   potential_languages=c
1196
1197   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1198     case ${lang_frag} in
1199       ..) ;;
1200       # The odd quoting in the next line works around
1201       # an apparent bug in bash 1.12 on linux.
1202       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1203       *)
1204         # From the config-lang.in, get $language, $target_libs,
1205         # $lang_dirs, $boot_language, and $build_by_default
1206         language=
1207         target_libs=
1208         lang_dirs=
1209         boot_language=
1210         build_by_default=
1211         need_gmp=
1212         . ${lang_frag}
1213         potential_languages="${potential_languages},${language}"
1214         # This is quite sensitive to the ordering of the case statement arms.
1215         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1216           *::*:*)
1217             echo "${lang_frag} doesn't set \$language." 1>&2
1218             exit 1
1219             ;;
1220           *:ada:no:*)
1221             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1222             add_this_lang=no
1223             ;;
1224           *,${language},*:*:*:*)
1225             # Language was explicitly selected; include it.
1226             add_this_lang=yes
1227             ;;
1228           *,all,*:*:*:no)
1229             # 'all' was selected, but this is not a default language
1230             # so do not include it.
1231             add_this_lang=no
1232             ;;
1233           *,all,*:*:*:*)
1234             # 'all' was selected and this is a default language; include it.
1235             add_this_lang=yes
1236             ;;
1237           *)
1238             add_this_lang=no
1239             ;;
1240         esac
1241
1242         # Disable languages that need GMP if it isn't available.
1243         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1244           *,${language},*:no:yes)
1245             # Specifically requested language; tell them.
1246             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1247             ;;
1248           *:no:yes)
1249             # Silently disable.
1250             add_this_lang=no
1251             ;;
1252         esac
1253
1254         # Disable a language that is unsupported by the target.
1255         case " $unsupported_languages " in
1256           *" $language "*)
1257             add_this_lang=no
1258             ;;
1259         esac
1260
1261         case $add_this_lang in
1262           no)
1263             # Remove language-dependent dirs.
1264             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1265             ;;
1266           *)
1267             new_enable_languages="$new_enable_languages,$language"
1268             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1269             case ${boot_language} in
1270               yes)
1271                 # Add to (comma-separated) list of stage 1 languages.
1272                 stage1_languages="${stage1_languages},${language}"
1273                 ;;
1274             esac
1275             ;;
1276         esac
1277         ;;
1278     esac
1279   done
1280
1281   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1282   if test "x$missing_languages" != x; then
1283     AC_MSG_ERROR([
1284 The following requested languages could not be built: ${missing_languages}
1285 Recognised languages are: ${potential_languages}])
1286   fi
1287
1288   if test "x$new_enable_languages" != "x$enable_languages"; then
1289     echo The following languages will be built: ${new_enable_languages}
1290   fi
1291   enable_languages="$new_enable_languages"
1292   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1293 fi
1294
1295 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1296 # $build_configdirs and $target_configdirs.
1297 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1298
1299 notsupp=""
1300 for dir in . $skipdirs $noconfigdirs ; do
1301   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1302   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1303     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1304     if test -r $srcdir/$dirname/configure ; then
1305       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1306         true
1307       else
1308         notsupp="$notsupp $dir"
1309       fi
1310     fi
1311   fi
1312   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1313     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1314     if test -r $srcdir/$dirname/configure ; then
1315       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1316         true
1317       else
1318         notsupp="$notsupp $dir"
1319       fi
1320     fi
1321   fi
1322   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1323     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1324     if test -r $srcdir/$dirname/configure ; then
1325       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1326         true
1327       else
1328         notsupp="$notsupp $dir"
1329       fi
1330     fi
1331   fi
1332 done
1333
1334 # Sometimes the tools are distributed with libiberty but with no other
1335 # libraries.  In that case, we don't want to build target-libiberty.
1336 if test -n "${target_configdirs}" ; then
1337   others=
1338   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1339     if test "$i" != "libiberty" ; then
1340       if test -r $srcdir/$i/configure ; then
1341         others=yes;
1342         break;
1343       fi
1344     fi
1345   done
1346   if test -z "${others}" ; then
1347     target_configdirs=
1348   fi
1349 fi
1350
1351 # Quietly strip out all directories which aren't configurable in this tree.
1352 # This relies on all configurable subdirectories being autoconfiscated, which
1353 # is now the case.
1354 build_configdirs_all="$build_configdirs"
1355 build_configdirs=
1356 for i in ${build_configdirs_all} ; do
1357   j=`echo $i | sed -e s/build-//g`
1358   if test -f ${srcdir}/$j/configure ; then
1359     build_configdirs="${build_configdirs} $i"
1360   fi
1361 done
1362
1363 configdirs_all="$configdirs"
1364 configdirs=
1365 for i in ${configdirs_all} ; do
1366   if test -f ${srcdir}/$i/configure ; then
1367     configdirs="${configdirs} $i"
1368   fi
1369 done
1370
1371 target_configdirs_all="$target_configdirs"
1372 target_configdirs=
1373 for i in ${target_configdirs_all} ; do
1374   j=`echo $i | sed -e s/target-//g`
1375   if test -f ${srcdir}/$j/configure ; then
1376     target_configdirs="${target_configdirs} $i"
1377   fi
1378 done
1379
1380 # Produce a warning message for the subdirs we can't configure.
1381 # This isn't especially interesting in the Cygnus tree, but in the individual
1382 # FSF releases, it's important to let people know when their machine isn't
1383 # supported by the one or two programs in a package.
1384
1385 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1386   # If $appdirs is non-empty, at least one of those directories must still
1387   # be configured, or we error out.  (E.g., if the gas release supports a
1388   # specified target in some subdirs but not the gas subdir, we shouldn't
1389   # pretend that all is well.)
1390   if test -n "$appdirs" ; then
1391     for dir in $appdirs ; do
1392       if test -r $dir/Makefile.in ; then
1393         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1394           appdirs=""
1395           break
1396         fi
1397         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1398           appdirs=""
1399           break
1400         fi
1401       fi
1402     done
1403     if test -n "$appdirs" ; then
1404       echo "*** This configuration is not supported by this package." 1>&2
1405       exit 1
1406     fi
1407   fi
1408   # Okay, some application will build, or we don't care to check.  Still
1409   # notify of subdirs not getting built.
1410   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1411   echo "    ${notsupp}" 1>&2
1412   echo "    (Any other directories should still work fine.)" 1>&2
1413 fi
1414
1415 case "$host" in
1416   *msdosdjgpp*)
1417     enable_gdbtk=no ;;
1418 esac
1419
1420 copy_dirs=
1421
1422 AC_ARG_WITH([build-sysroot],
1423   [  --with-build-sysroot=sysroot
1424                           use sysroot as the system root during the build],
1425   [if test x"$withval" != x ; then
1426      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1427    fi],
1428   [SYSROOT_CFLAGS_FOR_TARGET=])
1429 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1430
1431 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1432 # the named directory are copied to $(tooldir)/sys-include.
1433 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1434   if test x${is_cross_compiler} = xno ; then
1435     echo 1>&2 '***' --with-headers is only supported when cross compiling
1436     exit 1
1437   fi
1438   if test x"${with_headers}" != xyes ; then
1439     case "${exec_prefixoption}" in
1440     "") x=${prefix} ;;
1441     *) x=${exec_prefix} ;;
1442     esac
1443     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1444   fi
1445 fi
1446
1447 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1448 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1449 # are permitted.
1450 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1451   if test x${is_cross_compiler} = xno ; then
1452     echo 1>&2 '***' --with-libs is only supported when cross compiling
1453     exit 1
1454   fi
1455   if test x"${with_libs}" != xyes ; then
1456     # Copy the libraries in reverse order, so that files in the first named
1457     # library override files in subsequent libraries.
1458     case "${exec_prefixoption}" in
1459     "") x=${prefix} ;;
1460     *) x=${exec_prefix} ;;
1461     esac
1462     for l in ${with_libs}; do
1463       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1464     done
1465   fi
1466 fi
1467
1468 # Handle ${copy_dirs}
1469 set fnord ${copy_dirs}
1470 shift
1471 while test $# != 0 ; do
1472   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1473     :
1474   else
1475     echo Copying $1 to $2
1476
1477     # Use the install script to create the directory and all required
1478     # parent directories.
1479     if test -d $2 ; then
1480       :
1481     else
1482       echo >config.temp
1483       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1484     fi
1485
1486     # Copy the directory, assuming we have tar.
1487     # FIXME: Should we use B in the second tar?  Not all systems support it.
1488     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1489
1490     # It is the responsibility of the user to correctly adjust all
1491     # symlinks.  If somebody can figure out how to handle them correctly
1492     # here, feel free to add the code.
1493
1494     echo $1 > $2/COPIED
1495   fi
1496   shift; shift
1497 done
1498
1499 extra_arflags_for_target=
1500 extra_nmflags_for_target=
1501 extra_ranlibflags_for_target=
1502 target_makefile_frag=/dev/null
1503 case "${target}" in
1504   *-*-netware*)
1505     target_makefile_frag="config/mt-netware"
1506     ;;
1507   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1508     target_makefile_frag="config/mt-gnu"
1509     ;;
1510   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1511     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1512     # commands to handle both 32-bit and 64-bit objects.  These flags are
1513     # harmless if we're using GNU nm or ar.
1514     extra_arflags_for_target=" -X32_64"
1515     extra_nmflags_for_target=" -B -X32_64"
1516     ;;
1517   *-*-darwin*)
1518     # ranlib from Darwin requires the -c flag to look at common symbols.
1519     extra_ranlibflags_for_target=" -c"
1520     ;;
1521   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1522     target_makefile_frag="config/mt-wince"
1523     ;;
1524 esac
1525
1526 alphaieee_frag=/dev/null
1527 case $target in
1528   alpha*-*-*)
1529     # This just makes sure to use the -mieee option to build target libs.
1530     # This should probably be set individually by each library.
1531     alphaieee_frag="config/mt-alphaieee"
1532     ;;
1533 esac
1534
1535 # If --enable-target-optspace always use -Os instead of -O2 to build
1536 # the target libraries, similarly if it is not specified, use -Os
1537 # on selected platforms.
1538 ospace_frag=/dev/null
1539 case "${enable_target_optspace}:${target}" in
1540   yes:*)
1541     ospace_frag="config/mt-ospace"
1542     ;;
1543   :d30v-*)
1544     ospace_frag="config/mt-d30v"
1545     ;;
1546   :m32r-* | :d10v-* | :fr30-*)
1547     ospace_frag="config/mt-ospace"
1548     ;;
1549   no:* | :*)
1550     ;;
1551   *)
1552     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1553     ;;
1554 esac
1555
1556 # Set with_gnu_as and with_gnu_ld as appropriate.
1557 #
1558 # This is done by determining whether or not the appropriate directory
1559 # is available, and by checking whether or not specific configurations
1560 # have requested that this magic not happen.
1561 #
1562 # The command line options always override the explicit settings in
1563 # configure.in, and the settings in configure.in override this magic.
1564 #
1565 # If the default for a toolchain is to use GNU as and ld, and you don't
1566 # want to do that, then you should use the --without-gnu-as and
1567 # --without-gnu-ld options for the configure script.
1568
1569 if test x${use_gnu_as} = x &&
1570    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1571   with_gnu_as=yes
1572   extra_host_args="$extra_host_args --with-gnu-as"
1573 fi
1574
1575 if test x${use_gnu_ld} = x &&
1576    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1577   with_gnu_ld=yes
1578   extra_host_args="$extra_host_args --with-gnu-ld"
1579 fi
1580
1581 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1582 # can detect this case.
1583
1584 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1585   with_newlib=yes
1586   extra_host_args="$extra_host_args --with-newlib"
1587 fi
1588
1589 # Default to using --with-stabs for certain targets.
1590 if test x${with_stabs} = x ; then
1591   case "${target}" in
1592   mips*-*-irix[[56]]*)
1593     ;;
1594   mips*-*-* | alpha*-*-osf*)
1595     with_stabs=yes;
1596     extra_host_args="${extra_host_args} --with-stabs"
1597     ;;
1598   esac
1599 fi
1600
1601 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1602 # them automatically.
1603 case "${host}" in
1604   hppa*64*-*-hpux11*)
1605     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1606     ;;
1607 esac
1608
1609 # Some systems (e.g., one of the i386-aix systems the gas testers are
1610 # using) don't handle "\$" correctly, so don't use it here.
1611 tooldir='${exec_prefix}'/${target_alias}
1612 build_tooldir=${tooldir}
1613
1614 # Create a .gdbinit file which runs the one in srcdir
1615 # and tells GDB to look there for source files.
1616
1617 if test -r ${srcdir}/.gdbinit ; then
1618   case ${srcdir} in
1619     .) ;;
1620     *) cat > ./.gdbinit <<EOF
1621 # ${NO_EDIT}
1622 dir ${srcdir}
1623 dir .
1624 source ${srcdir}/.gdbinit
1625 EOF
1626     ;;
1627   esac
1628 fi
1629
1630 # Make sure that the compiler is able to generate an executable.  If it
1631 # can't, we are probably in trouble.  We don't care whether we can run the
1632 # executable--we might be using a cross compiler--we only care whether it
1633 # can be created.  At this point the main configure script has set CC.
1634 we_are_ok=no
1635 echo "int main () { return 0; }" > conftest.c
1636 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1637 if test $? = 0 ; then
1638   if test -s conftest || test -s conftest.exe ; then
1639     we_are_ok=yes
1640   fi
1641 fi
1642 case $we_are_ok in
1643   no)
1644     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1645     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1646     rm -f conftest*
1647     exit 1
1648     ;;
1649 esac
1650 rm -f conftest*
1651
1652 # The Solaris /usr/ucb/cc compiler does not appear to work.
1653 case "${host}" in
1654   sparc-sun-solaris2*)
1655       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1656       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1657           could_use=
1658           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1659           if test -d /opt/cygnus/bin ; then
1660               if test "$could_use" = "" ; then
1661                   could_use="/opt/cygnus/bin"
1662               else
1663                   could_use="$could_use or /opt/cygnus/bin"
1664               fi
1665           fi
1666         if test "$could_use" = "" ; then
1667             echo "Warning: compilation may fail because you're using"
1668             echo "/usr/ucb/cc.  You should change your PATH or CC "
1669             echo "variable and rerun configure."
1670         else
1671             echo "Warning: compilation may fail because you're using"
1672             echo "/usr/ucb/cc, when you should use the C compiler from"
1673             echo "$could_use.  You should change your"
1674             echo "PATH or CC variable and rerun configure."
1675         fi
1676       fi
1677   ;;
1678 esac
1679
1680 case "${host}" in
1681   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1682   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1683   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1684 esac
1685
1686 # Record target_configdirs and the configure arguments for target and
1687 # build configuration in Makefile.
1688 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1689 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1690
1691 # Determine whether gdb needs tk/tcl or not.
1692 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1693 # and in that case we want gdb to be built without tk.  Ugh!
1694 # In fact I believe gdb is the *only* package directly dependent on tk,
1695 # so we should be able to put the 'maybe's in unconditionally and
1696 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1697 # 100% sure that that's safe though.
1698
1699 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1700 case "$enable_gdbtk" in
1701   no)
1702     GDB_TK="" ;;
1703   yes)
1704     GDB_TK="${gdb_tk}" ;;
1705   *)
1706     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1707     # distro.  Eventually someone will fix this and move Insight, nee
1708     # gdbtk to a separate directory.
1709     if test -d ${srcdir}/gdb/gdbtk ; then
1710       GDB_TK="${gdb_tk}"
1711     else
1712       GDB_TK=""
1713     fi
1714     ;;
1715 esac
1716 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1717 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1718
1719 # Strip out unwanted targets.
1720
1721 # While at that, we remove Makefiles if we were started for recursive
1722 # configuration, so that the top-level Makefile reconfigures them,
1723 # like we used to do when configure itself was recursive.
1724
1725 # Loop over modules.  $extrasub must be used with care, limiting as
1726 # much as possible the usage of range addresses.  That's because autoconf
1727 # splits the sed script to overcome limits in the number of commands,
1728 # and relying on carefully-timed sed passes may turn out to be very hard
1729 # to maintain later.  In this particular case, you just have to be careful
1730 # not to nest @if/@endif pairs, because configure will not warn you at all.
1731
1732 AC_ARG_ENABLE([bootstrap],
1733 [  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
1734 enable_bootstrap=default)
1735
1736 # Issue errors and warnings for invalid/strange bootstrap combinations.
1737 case "$configdirs" in
1738   *gcc*) have_compiler=yes ;;
1739   *) have_compiler=no ;;
1740 esac
1741
1742 case "$have_compiler:$host:$target:$enable_bootstrap" in
1743   *:*:*:no) ;;
1744
1745   # Default behavior.  Enable bootstrap if we have a compiler
1746   # and we are in a native configuration.
1747   yes:$build:$build:default)
1748     enable_bootstrap=yes ;;
1749
1750   *:*:*:default)
1751     enable_bootstrap=no ;;
1752
1753   # We have a compiler and we are in a native configuration, bootstrap is ok
1754   yes:$build:$build:yes | yes:$build:$build:lean)
1755     ;;
1756
1757   # Other configurations, but we have a compiler.  Assume the user knows
1758   # what he's doing.
1759   yes:*:*:yes | yes:*:*:lean)
1760     AC_MSG_WARN([trying to bootstrap a cross compiler])
1761     ;;
1762
1763   # No compiler: if they passed --enable-bootstrap explicitly, fail
1764   no:*:*:yes | no:*:*:lean)
1765     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1766
1767   # Fail if wrong command line
1768   *)
1769     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1770     ;;
1771 esac
1772
1773 # Adjust the toplevel makefile according to whether bootstrap was selected.
1774 case "$enable_bootstrap" in
1775   yes)
1776     bootstrap_lean='#'
1777     bootstrap_suffix=bootstrap ;;
1778   lean)
1779     bootstrap_lean=''
1780     bootstrap_suffix=bootstrap ;;
1781   no)
1782     bootstrap_suffix=no-bootstrap ;;
1783 esac
1784 AC_SUBST(bootstrap_lean)
1785
1786 for module in ${build_configdirs} ; do
1787   if test -z "${no_recursion}" \
1788      && test -f ${build_subdir}/${module}/Makefile; then
1789     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1790     rm -f ${build_subdir}/${module}/Makefile
1791   fi
1792   extrasub="$extrasub
1793 /^@if build-$module\$/d
1794 /^@endif build-$module\$/d
1795 /^@if build-$module-$bootstrap_suffix\$/d
1796 /^@endif build-$module-$bootstrap_suffix\$/d"
1797 done
1798 for module in ${configdirs} ; do
1799   if test -z "${no_recursion}" \
1800      && test -f ${module}/Makefile; then
1801     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1802     rm -f ${module}/Makefile
1803   fi
1804   extrasub="$extrasub
1805 /^@if $module\$/d
1806 /^@endif $module\$/d
1807 /^@if $module-$bootstrap_suffix\$/d
1808 /^@endif $module-$bootstrap_suffix\$/d"
1809 done
1810 for module in ${target_configdirs} ; do
1811   if test -z "${no_recursion}" \
1812      && test -f ${target_subdir}/${module}/Makefile; then
1813     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1814     rm -f ${target_subdir}/${module}/Makefile
1815   fi
1816   extrasub="$extrasub
1817 /^@if target-$module\$/d
1818 /^@endif target-$module\$/d
1819 /^@if target-$module-$bootstrap_suffix\$/d
1820 /^@endif target-$module-$bootstrap_suffix\$/d"
1821 done
1822
1823 extrasub="$extrasub
1824 /^@if /,/^@endif /d"
1825
1826 # Create the serialization dependencies.  This uses a temporary file.
1827
1828 AC_ARG_ENABLE([serial-configure],
1829 [  --enable-serial-[{host,target,build}-]configure
1830                           Force sequential configuration of
1831                           sub-packages for the host, target or build
1832                           machine, or all sub-packages])
1833
1834 case ${enable_serial_configure} in
1835   yes)
1836     enable_serial_build_configure=yes
1837     enable_serial_host_configure=yes
1838     enable_serial_target_configure=yes
1839     ;;
1840 esac
1841
1842 # These force 'configure's to be done one at a time, to avoid problems
1843 # with contention over a shared config.cache.
1844 rm -f serdep.tmp
1845 echo '# serdep.tmp' > serdep.tmp
1846 olditem=
1847 test "x${enable_serial_build_configure}" = xyes &&
1848 for item in ${build_configdirs} ; do
1849   case ${olditem} in
1850     "") ;;
1851     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1852   esac
1853   olditem=${item}
1854 done
1855 olditem=
1856 test "x${enable_serial_host_configure}" = xyes &&
1857 for item in ${configdirs} ; do
1858   case ${olditem} in
1859     "") ;;
1860     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1861   esac
1862   olditem=${item}
1863 done
1864 olditem=
1865 test "x${enable_serial_target_configure}" = xyes &&
1866 for item in ${target_configdirs} ; do
1867   case ${olditem} in
1868     "") ;;
1869     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1870   esac
1871   olditem=${item}
1872 done
1873 serialization_dependencies=serdep.tmp
1874 AC_SUBST_FILE(serialization_dependencies)
1875
1876 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1877 # target and nonopt.  These are the ones we might not want to pass
1878 # down to subconfigures.  Also strip program-prefix, program-suffix,
1879 # and program-transform-name, so that we can pass down a consistent
1880 # program-transform-name.  If autoconf has put single quotes around
1881 # any of these arguments (because they contain shell metacharacters)
1882 # then this will fail; in practice this only happens for
1883 # --program-transform-name, so be sure to override --program-transform-name
1884 # at the end of the argument list.
1885 # These will be expanded by make, so quote '$'.
1886 cat <<\EOF_SED > conftestsed
1887 s/ --no[[^ ]]*/ /g
1888 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1889 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1890 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1891 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1892 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1893 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1894 s/ -cache-file[[= ]][[^ ]]*//g
1895 s/ -srcdir[[= ]][[^ ]]*//g
1896 s/ -host[[= ]][[^ ]]*//g
1897 s/ -build[[= ]][[^ ]]*//g
1898 s/ -target[[= ]][[^ ]]*//g
1899 s/ -program-prefix[[= ]][[^ ]]*//g
1900 s/ -program-suffix[[= ]][[^ ]]*//g
1901 s/ -program-transform-name[[= ]][[^ ]]*//g
1902 s/ [[^' -][^ ]*] / /
1903 s/^ *//;s/ *$//
1904 s,\$,$$,g
1905 EOF_SED
1906 sed -f conftestsed <<EOF_SED > conftestsed.out
1907  ${ac_configure_args}
1908 EOF_SED
1909 baseargs=`cat conftestsed.out`
1910 rm -f conftestsed conftestsed.out
1911
1912 # Add in --program-transform-name, after --program-prefix and
1913 # --program-suffix have been applied to it.  Autoconf has already
1914 # doubled dollar signs and backslashes in program_transform_name; we want
1915 # the backslashes un-doubled, and then the entire thing wrapped in single
1916 # quotes, because this will be expanded first by make and then by the shell.
1917 # Also, because we want to override the logic in subdir configure scripts to
1918 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1919 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1920 ${program_transform_name}
1921 EOF_SED
1922 gcc_transform_name=`cat conftestsed.out`
1923 rm -f conftestsed.out
1924 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1925
1926 # For the build-side libraries, we just need to pretend we're native,
1927 # and not use the same cache file.  Multilibs are neither needed nor
1928 # desired.
1929 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
1930
1931 # For host modules, accept cache file option, or specification as blank.
1932 case "${cache_file}" in
1933 "") # empty
1934   cache_file_option="" ;;
1935 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1936   cache_file_option="--cache-file=${cache_file}" ;;
1937 *) # relative path
1938   cache_file_option="--cache-file=../${cache_file}" ;;
1939 esac
1940
1941 # Host dirs don't like to share a cache file either, horribly enough.
1942 # This seems to be due to autoconf 2.5x stupidity.
1943 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1944
1945 target_configargs=${baseargs}
1946
1947 # Passing a --with-cross-host argument lets the target libraries know
1948 # whether they are being built with a cross-compiler or being built
1949 # native.  However, it would be better to use other mechanisms to make the
1950 # sorts of decisions they want to make on this basis.  Please consider
1951 # this option to be deprecated.  FIXME.
1952 if test x${is_cross_compiler} = xyes ; then
1953   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1954 fi
1955
1956 # Default to --enable-multilib.
1957 if test x${enable_multilib} = x ; then
1958   target_configargs="--enable-multilib ${target_configargs}"
1959 fi
1960
1961 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1962 # changed from the earlier setting of with_newlib.
1963 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1964   target_configargs="--with-newlib ${target_configargs}"
1965 fi
1966
1967 # Different target subdirs use different values of certain variables
1968 # (notably CXX).  Worse, multilibs use *lots* of different values.
1969 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1970 # it doesn't automatically accept command-line overrides of them.
1971 # This means it's not safe for target subdirs to share a cache file,
1972 # which is disgusting, but there you have it.  Hopefully this can be
1973 # fixed in future.  It's still worthwhile to use a cache file for each
1974 # directory.  I think.
1975
1976 # Pass the appropriate --build, --host, --target and --cache-file arguments.
1977 # We need to pass --target, as newer autoconf's requires consistency
1978 # for target_alias and gcc doesn't manage it consistently.
1979 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
1980
1981 FLAGS_FOR_TARGET=
1982 case " $target_configdirs " in
1983  *" newlib "*)
1984   case " $target_configargs " in
1985   *" --with-newlib "*)
1986    case "$target" in
1987    *-cygwin*)
1988      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' ;;
1989    esac
1990
1991    # If we're not building GCC, don't discard standard headers.
1992    if test -d ${srcdir}/gcc; then
1993      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1994
1995      if test "${build}" != "${host}"; then
1996        # On Canadian crosses, CC_FOR_TARGET will have already been set
1997        # by `configure', so we won't have an opportunity to add -Bgcc/
1998        # to it.  This is right: we don't want to search that directory
1999        # for binaries, but we want the header files in there, so add
2000        # them explicitly.
2001        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2002
2003        # Someone might think of using the pre-installed headers on
2004        # Canadian crosses, in case the installed compiler is not fully
2005        # compatible with the compiler being built.  In this case, it
2006        # would be better to flag an error than risking having
2007        # incompatible object files being constructed.  We can't
2008        # guarantee that an error will be flagged, but let's hope the
2009        # compiler will do it, when presented with incompatible header
2010        # files.
2011      fi
2012    fi
2013
2014    case "${target}-${is_cross_compiler}" in
2015    i[[3456789]]86-*-linux*-no)
2016       # Here host == target, so we don't need to build gcc,
2017       # so we don't want to discard standard headers.
2018       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2019       ;;
2020    *)
2021       # If we're building newlib, use its generic headers last, but search
2022       # for any libc-related directories first (so make it the last -B
2023       # switch).
2024       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2025       ;;
2026    esac
2027    ;;
2028   esac
2029   ;;
2030 esac
2031
2032 # Allow the user to override the flags for
2033 # our build compiler if desired.
2034 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2035
2036 # On Canadian crosses, we'll be searching the right directories for
2037 # the previously-installed cross compiler, so don't bother to add
2038 # flags for directories within the install tree of the compiler
2039 # being built; programs in there won't even run.
2040 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2041   # Search for pre-installed headers if nothing else fits.
2042   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2043 fi
2044
2045 if test "x${use_gnu_ld}" = x &&
2046    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2047   # Arrange for us to find uninstalled linker scripts.
2048   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2049 fi
2050
2051 # Makefile fragments.
2052 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2053 do
2054   eval fragval=\$$frag
2055   if test $fragval != /dev/null; then
2056     eval $frag=${srcdir}/$fragval
2057   fi
2058 done
2059 AC_SUBST_FILE(host_makefile_frag)
2060 AC_SUBST_FILE(target_makefile_frag)
2061 AC_SUBST_FILE(alphaieee_frag)
2062 AC_SUBST_FILE(ospace_frag)
2063
2064 # Miscellanea: directories, flags, etc.
2065 AC_SUBST(RPATH_ENVVAR)
2066 AC_SUBST(BUILD_PREFIX)
2067 AC_SUBST(BUILD_PREFIX_1)
2068 AC_SUBST(tooldir)
2069 AC_SUBST(build_tooldir)
2070 AC_SUBST(CONFIGURE_GDB_TK)
2071 AC_SUBST(GDB_TK)
2072 AC_SUBST(INSTALL_GDB_TK)
2073
2074 # Build module lists & subconfigure args.
2075 AC_SUBST(build_configargs)
2076 AC_SUBST(build_configdirs)
2077
2078 # Host module lists & subconfigure args.
2079 AC_SUBST(host_configargs)
2080 AC_SUBST(configdirs)
2081
2082 # Target module lists & subconfigure args.
2083 AC_SUBST(target_configargs)
2084 AC_SUBST(target_configdirs)
2085
2086 # Build tools.
2087 AC_SUBST(CC_FOR_BUILD)
2088 AC_SUBST(config_shell)
2089
2090 # Generate default definitions for YACC, M4, LEX and other programs that run
2091 # on the build machine.  These are used if the Makefile can't locate these
2092 # programs in objdir.
2093 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2094
2095 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2096 case " $build_configdirs " in
2097   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2098   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2099 esac
2100
2101 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2102 case " $build_configdirs " in
2103   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2104 esac
2105
2106 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2107 case " $build_configdirs " in
2108   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2109 esac
2110
2111 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2112 case " $build_configdirs " in
2113   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2114   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2115 esac
2116
2117 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2118 case " $build_configdirs " in
2119   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2120 esac
2121
2122 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2123 case " $build_configdirs " in
2124   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2125   *)
2126 changequote(,)
2127     # For an installed makeinfo, we require it to be from texinfo 4.2 or
2128     # higher, else we use the "missing" dummy.
2129     if ${MAKEINFO} --version \
2130        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[2-9]|[5-9])' >/dev/null 2>&1; then
2131       :
2132     else
2133       MAKEINFO="$MISSING makeinfo"
2134     fi
2135     ;;
2136 changequote([,])
2137 esac
2138
2139 # FIXME: expect and dejagnu may become build tools?
2140
2141 AC_CHECK_PROGS(EXPECT, expect, expect)
2142 case " $configdirs " in
2143   *" expect "*)
2144     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2145     ;;
2146 esac
2147
2148 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2149 case " $configdirs " in
2150   *" dejagnu "*)
2151     test $host = $build && RUNTEST='$$r/$(HOST_SUBDIR)/dejagnu/runtest'
2152     ;;
2153 esac
2154
2155
2156 # Host tools.
2157 NCN_STRICT_CHECK_TOOLS(AR, ar)
2158 NCN_STRICT_CHECK_TOOLS(AS, as)
2159 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2160 NCN_STRICT_CHECK_TOOLS(LD, ld)
2161 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2162 NCN_STRICT_CHECK_TOOLS(NM, nm)
2163 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2164 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2165 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2166 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2167 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2168 AC_SUBST(CC)
2169 AC_SUBST(CXX)
2170 AC_SUBST(CFLAGS)
2171 AC_SUBST(CFLAGS_FOR_BUILD)
2172 AC_SUBST(CXXFLAGS)
2173
2174 # Target tools.
2175 NCN_STRICT_CHECK_TARGET_TOOLS(AR_FOR_TARGET, ar)
2176 NCN_STRICT_CHECK_TARGET_TOOLS(AS_FOR_TARGET, as)
2177 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2178 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2179 NCN_STRICT_CHECK_TARGET_TOOLS(DLLTOOL_FOR_TARGET, dlltool)
2180 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2181 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2182 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2183 NCN_STRICT_CHECK_TARGET_TOOLS(LD_FOR_TARGET, ld)
2184 NCN_STRICT_CHECK_TARGET_TOOLS(LIPO_FOR_TARGET, lipo)
2185 NCN_STRICT_CHECK_TARGET_TOOLS(NM_FOR_TARGET, nm)
2186 NCN_STRICT_CHECK_TARGET_TOOLS(OBJDUMP_FOR_TARGET, objdump)
2187 NCN_STRICT_CHECK_TARGET_TOOLS(RANLIB_FOR_TARGET, ranlib, :)
2188 NCN_STRICT_CHECK_TARGET_TOOLS(STRIP_FOR_TARGET, strip)
2189 NCN_STRICT_CHECK_TARGET_TOOLS(WINDRES_FOR_TARGET, windres)
2190
2191 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2192
2193 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2194 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2195 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2196 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2197                 [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$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2198                 c++)
2199 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2200                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2201                 c++)
2202 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2203 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2204 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2205                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2206 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2207                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2208 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2209 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2210 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2211 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2212 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2213 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2214 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2215
2216 AC_SUBST(FLAGS_FOR_TARGET)
2217 AC_SUBST(RAW_CXX_FOR_TARGET)
2218
2219 # Certain tools may need extra flags.
2220 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2221 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2222 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2223
2224 # When building target libraries, except in a Canadian cross, we use
2225 # the same toolchain as the compiler we just built.
2226 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2227 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2228 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2229 if test $host = $build; then
2230   case " $configdirs " in
2231     *" gcc "*)
2232       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2233       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2234       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2235       ;;
2236   esac
2237 fi
2238
2239 AC_SUBST(COMPILER_AS_FOR_TARGET)
2240 AC_SUBST(COMPILER_LD_FOR_TARGET)
2241 AC_SUBST(COMPILER_NM_FOR_TARGET)
2242
2243 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2244 AC_ARG_ENABLE(maintainer-mode,
2245 [  --enable-maintainer-mode enable make rules and dependencies not useful
2246                           (and sometimes confusing) to the casual installer],
2247       USE_MAINTAINER_MODE=$enableval,
2248       USE_MAINTAINER_MODE=no)
2249 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2250 AC_SUBST(MAINTAINER_MODE_TRUE)
2251 AC_SUBST(MAINTAINER_MODE_FALSE)
2252 if test "$USE_MAINTAINER_MODE" = yes; then
2253   MAINTAINER_MODE_TRUE=
2254   MAINTAINER_MODE_FALSE='#'
2255 else
2256   MAINTAINER_MODE_TRUE='#'
2257   MAINTAINER_MODE_FALSE=
2258 fi
2259 MAINT=$MAINTAINER_MODE_TRUE
2260 AC_SUBST(MAINT)dnl
2261
2262 # ---------------------
2263 # GCC bootstrap support
2264 # ---------------------
2265
2266 # Stage specific cflags for build.
2267 stage1_cflags="-g"
2268 case $build in
2269   vax-*-*)
2270     case ${GCC} in
2271       yes) stage1_cflags="-g -Wa,-J" ;;
2272       *) stage1_cflags="-g -J" ;;
2273     esac ;;
2274   powerpc-*-darwin*)
2275     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2276     # sources; use -no-cpp-precomp to get to GNU cpp.
2277     # Apple's GCC has bugs in designated initializer handling, so disable
2278     # that too.
2279     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2280     ;;
2281 esac
2282 AC_SUBST(stage1_cflags)
2283
2284 # It makes debugging easier if we create as symlinks the stage directories
2285 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
2286 # possible, however, we can resort to mv.
2287 AC_CACHE_CHECK([if symbolic links between directories work],
2288 [gcc_cv_prog_ln_s_dir],
2289 [if test "${LN_S}" = "ln -s" \
2290    && mkdir confdir.s1 \
2291    && ln -s confdir.s1 confdir.s2 \
2292    && echo timestamp1 > confdir.s1/conftest.1 \
2293    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2294    && echo timestamp2 > confdir.s2/conftest.2 \
2295    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2296    && rm -f confdir.s2; then
2297   gcc_cv_prog_ln_s_dir=yes
2298 else
2299   gcc_cv_prog_ln_s_dir=no
2300 fi
2301 rm -rf confdir.s1 confdir.s2])
2302
2303 case ${gcc_cv_prog_ln_s_dir} in
2304   yes)
2305     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2306     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2307   *)
2308     CREATE_LINK_TO_DIR='mv $$1 $$2'
2309     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2310 esac
2311 AC_SUBST(CREATE_LINK_TO_DIR)
2312 AC_SUBST(UNDO_LINK_TO_DIR)
2313
2314 # Enable -Werror in bootstrap stage2 and later.
2315 # Change the default to "no" on release branches.
2316 AC_ARG_ENABLE(werror,
2317 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2318 [enable_werror=yes])
2319 case ${enable_werror} in
2320   yes) stage2_werror_flag="--enable-werror-always" ;;
2321   *) stage2_werror_flag="" ;;
2322 esac
2323 AC_SUBST(stage2_werror_flag)
2324
2325 AC_OUTPUT(Makefile)