configure.in

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