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 gmp mpfr"
 127
 128 # these tools are built for the host environment
 129 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 130 # know that we are building the simulator.
 131 # binutils, gas and ld appear in that order because it makes sense to run
 132 # "make check" in that particular order.
 133 host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils gettext zip fastjar gnattools"
 134
 135 # libgcj represents the runtime libraries only used by gcj.
 136 libgcj="target-libffi \
 137         target-zlib \
 138         target-qthreads \
 139         target-libjava"
 140
 141 # these libraries are built for the target environment, and are built after
 142 # the host libraries and the host tools (which may be a cross compiler)
 143 #
 144 target_libraries="target-libiberty \
 145                 target-libgcc \
 146                 target-libgloss \
 147                 target-newlib \
 148                 target-libstdc++-v3 \
 149                 target-libmudflap \
 150                 target-libssp \
 151                 target-libgfortran \
 152                 target-boehm-gc \
 153                 ${libgcj} \
 154                 target-libobjc \
 155                 target-libada \
 156                 target-libgomp"
 157
 158 # these tools are built using the target libraries, and are intended to
 159 # run only in the target environment
 160 #
 161 # note: any program that *uses* libraries that are in the "target_libraries"
 162 # list belongs in this list.  those programs are also very likely
 163 # candidates for the "native_only" list which follows
 164 #
 165 target_tools="target-examples target-groff target-gperf target-rda"
 166
 167 ################################################################################
 168
 169 ## All tools belong in one of the four categories, and are assigned above
 170 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 171 ## is important because configure will choke if they ever get through.
 172 ## ${configdirs} is directories we build using the host tools.
 173 ## ${target_configdirs} is directories we build using the target tools.
 174 configdirs=`echo ${host_libs} ${host_tools}`
 175 target_configdirs=`echo ${target_libraries} ${target_tools}`
 176 build_configdirs=`echo ${build_libs} ${build_tools}`
 177
 178 ################################################################################
 179
 180 srcname="gnu development package"
 181
 182 # This gets set non-empty for some net releases of packages.
 183 appdirs=""
 184
 185 # Define is_cross_compiler to save on calls to 'test'.
 186 is_cross_compiler=
 187 if test x"${host}" = x"${target}" ; then
 188   is_cross_compiler=no
 189 else
 190   is_cross_compiler=yes
 191 fi
 192
 193 # Find the build and target subdir names.
 194 GCC_TOPLEV_SUBDIRS
 195
 196 # Skipdirs are removed silently.
 197 skipdirs=
 198 # Noconfigdirs are removed loudly.
 199 noconfigdirs=""
 200
 201 use_gnu_ld=
 202 # Make sure we don't let GNU ld be added if we didn't want it.
 203 if test x$with_gnu_ld = xno ; then
 204   use_gnu_ld=no
 205   noconfigdirs="$noconfigdirs ld"
 206 fi
 207
 208 use_gnu_as=
 209 # Make sure we don't let GNU as be added if we didn't want it.
 210 if test x$with_gnu_as = xno ; then
 211   use_gnu_as=no
 212   noconfigdirs="$noconfigdirs gas"
 213 fi
 214
 215 # some tools are so dependent upon X11 that if we're not building with X,
 216 # it's not even worth trying to configure, much less build, that tool.
 217
 218 case ${with_x} in
 219   yes | "") ;; # the default value for this tree is that X11 is available
 220   no)
 221     skipdirs="${skipdirs} tk itcl libgui"
 222     # We won't be able to build gdbtk without X.
 223     enable_gdbtk=no
 224     ;;
 225   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 226 esac
 227
 228 # Some tools are only suitable for building in a "native" situation.
 229 # Remove these if host!=target.
 230 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 231
 232 # Similarly, some are only suitable for cross toolchains.
 233 # Remove these if host=target.
 234 cross_only="target-libgloss target-newlib target-opcodes"
 235
 236 case $is_cross_compiler in
 237   no) skipdirs="${skipdirs} ${cross_only}" ;;
 238   yes) skipdirs="${skipdirs} ${native_only}" ;;
 239 esac
 240
 241 # If both --with-headers and --with-libs are specified, default to
 242 # --without-newlib.
 243 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 244    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 245   if test x"${with_newlib}" = x ; then
 246     with_newlib=no
 247   fi
 248 fi
 249
 250 # Recognize --with-newlib/--without-newlib.
 251 case ${with_newlib} in
 252   no) skipdirs="${skipdirs} target-newlib" ;;
 253   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 254 esac
 255
 256 # Configure extra directories which are host specific
 257
 258 case "${host}" in
 259   *-cygwin*)
 260     configdirs="$configdirs libtermcap" ;;
 261 esac
 262
 263 # A target can indicate whether a language isn't supported for some reason.
 264 # Only spaces may be used in this macro; not newlines or tabs.
 265 unsupported_languages=
 266
 267 # Remove more programs from consideration, based on the host or
 268 # target this usually means that a port of the program doesn't
 269 # exist yet.
 270
 271 case "${host}" in
 272   hppa*64*-*-*)
 273     noconfigdirs="$noconfigdirs byacc"
 274     ;;
 275   i[[3456789]]86-*-vsta)
 276     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 277     ;;
 278   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 279     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 280     ;;
 281   x86_64-*-mingw*)
 282     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
 283     ;;
 284   i[[3456789]]86-*-mingw32*)
 285     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 286     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
 287     ;;
 288   i[[3456789]]86-*-beos*)
 289     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 290     ;;
 291   *-*-cygwin*)
 292     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 293     ;;
 294   *-*-netbsd*)
 295     noconfigdirs="$noconfigdirs rcs"
 296     ;;
 297   ppc*-*-pe)
 298     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 299     ;;
 300   powerpc-*-beos*)
 301     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 302     ;;
 303 esac
 304
 305
 306 AC_ARG_ENABLE(libada,
 307 [  --enable-libada        Builds libada directory],
 308 ENABLE_LIBADA=$enableval,
 309 ENABLE_LIBADA=yes)
 310 if test "${ENABLE_LIBADA}" != "yes" ; then
 311   noconfigdirs="$noconfigdirs gnattools"
 312 fi
 313
 314 AC_ARG_ENABLE(libssp,
 315 [  --enable-libssp        Builds libssp directory],
 316 ENABLE_LIBSSP=$enableval,
 317 ENABLE_LIBSSP=yes)
 318
 319 # Save it here so that, even in case of --enable-libgcj, if the Java
 320 # front-end isn't enabled, we still get libgcj disabled.
 321 libgcj_saved=$libgcj
 322 case $enable_libgcj in
 323 yes)
 324   # If we reset it here, it won't get added to noconfigdirs in the
 325   # target-specific build rules, so it will be forcibly enabled
 326   # (unless the Java language itself isn't enabled).
 327   libgcj=
 328   ;;
 329 no)
 330   # Make sure we get it printed in the list of not supported target libs.
 331   noconfigdirs="$noconfigdirs ${libgcj}"
 332   ;;
 333 esac
 334
 335
 336 # Disable libmudflap on some systems.
 337 if test x$enable_libmudflap = x ; then
 338     case "${target}" in
 339     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 340         # Enable libmudflap by default in GNU and friends.
 341         ;;
 342     *-*-freebsd*)
 343         # Enable libmudflap by default in FreeBSD.
 344         ;;
 345     *)
 346         # Disable it by default everywhere else.
 347         noconfigdirs="$noconfigdirs target-libmudflap"
 348         ;;
 349     esac
 350 fi
 351
 352 # Disable libgomp on non POSIX hosted systems.
 353 if test x$enable_libgomp = x ; then
 354     # Enable libgomp by default on hosted POSIX systems.
 355     case "${target}" in
 356     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 357         ;;
 358     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 359         ;;
 360     *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
 361         ;;
 362     *-*-darwin* | *-*-aix*)
 363         ;;
 364     *)
 365         noconfigdirs="$noconfigdirs target-libgomp"
 366         ;;
 367     esac
 368 fi
 369
 370
 371 case "${target}" in
 372   *-*-chorusos)
 373     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 374     ;;
 375   powerpc-*-darwin* | i[[3456789]]86-*-darwin*)
 376     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 377     noconfigdirs="$noconfigdirs sim target-rda"
 378     ;;
 379   *-*-darwin*)
 380     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 381     noconfigdirs="$noconfigdirs sim target-rda"
 382     noconfigdirs="$noconfigdirs ${libgcj}"
 383     ;;
 384   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 385     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 386     ;;
 387   *-*-freebsd*)
 388     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 389     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 390         && test -f /usr/local/include/gmp.h; then
 391       with_gmp=/usr/local
 392     fi
 393
 394     # Skip some stuff that's unsupported on some FreeBSD configurations.
 395     case "${target}" in
 396       i*86-*-*) ;;
 397       alpha*-*-*) ;;
 398       *)
 399         noconfigdirs="$noconfigdirs ${libgcj}"
 400         ;;
 401     esac
 402     ;;
 403   *-*-kaos*)
 404     # Remove unsupported stuff on all kaOS configurations.
 405     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 406     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 407     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 408     noconfigdirs="$noconfigdirs target-libgloss"
 409     ;;
 410   *-*-netbsd*)
 411     # Skip some stuff on all NetBSD configurations.
 412     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 413
 414     # Skip some stuff that's unsupported on some NetBSD configurations.
 415     case "${target}" in
 416       i*86-*-netbsdelf*) ;;
 417       arm*-*-netbsdelf*) ;;
 418       *)
 419         noconfigdirs="$noconfigdirs ${libgcj}"
 420         ;;
 421     esac
 422     ;;
 423   *-*-netware*)
 424     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 425     ;;
 426   *-*-rtems*)
 427     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 428     ;;
 429     # The tpf target doesn't support gdb yet.
 430   *-*-tpf*)
 431     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 432     ;;
 433   *-*-uclinux*)
 434     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 435     ;;
 436   *-*-vxworks*)
 437     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 438     ;;
 439   alpha*-dec-osf*)
 440     # ld works, but does not support shared libraries.
 441     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 442     # gas doesn't generate exception information.
 443     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 444     ;;
 445   alpha*-*-*vms*)
 446     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 447     ;;
 448   alpha*-*-linux*)
 449     # newlib is not 64 bit ready
 450     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 451     ;;
 452   alpha*-*-*)
 453     # newlib is not 64 bit ready
 454     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 455     ;;
 456   am33_2.0-*-linux*)
 457     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 458     ;;
 459   sh-*-linux*)
 460     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 461     ;;
 462   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 463     noconfigdirs="$noconfigdirs ${libgcj}"
 464     noconfigdirs="$noconfigdirs target-examples"
 465     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 466     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 467     noconfigdirs="$noconfigdirs expect dejagnu"
 468     # the C++ libraries don't build on top of CE's C libraries
 469     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 470     noconfigdirs="$noconfigdirs target-newlib"
 471     case "${host}" in
 472       *-*-cygwin*) ;; # keep gdb and readline
 473       *) noconfigdirs="$noconfigdirs gdb readline"
 474          ;;
 475     esac
 476     ;;
 477   arc-*-*)
 478     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 479     ;;
 480   arm-semi-aof )
 481     ;;
 482   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 483     noconfigdirs="$noconfigdirs ${libgcj}"
 484     ;;
 485   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 486     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 487     ;;
 488   arm*-*-linux-gnueabi)
 489     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 490     noconfigdirs="$noconfigdirs target-libjava target-libobjc"
 491     ;;
 492   arm*-*-symbianelf*)
 493     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 494     ;;
 495   arm-*-pe*)
 496     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 497     ;;
 498   thumb-*-coff)
 499     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 500     ;;
 501   thumb-*-elf)
 502     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 503     ;;
 504   thumb-*-pe)
 505     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 506     ;;
 507   arm-*-riscix*)
 508     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 509     ;;
 510   avr-*-*)
 511     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 512     ;;
 513   bfin-*-*)
 514     noconfigdirs="$noconfigdirs gdb"
 515     if test x${is_cross_compiler} != xno ; then
 516       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 517     fi
 518     ;;
 519   c4x-*-* | tic4x-*-*)
 520     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 521     ;;
 522   c54x*-*-* | tic54x-*-*)
 523     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 524     ;;
 525   cris-*-* | crisv32-*-*)
 526     unsupported_languages="$unsupported_languages java"
 527     case "${target}" in
 528       *-*-aout)
 529         unsupported_languages="$unsupported_languages fortran"
 530         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 531       *-*-elf)
 532         unsupported_languages="$unsupported_languages fortran"
 533         noconfigdirs="$noconfigdirs target-boehm-gc";;
 534       *-*-linux*)
 535         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 536       *)
 537         unsupported_languages="$unsupported_languages fortran"
 538         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 539     esac
 540     ;;
 541   crx-*-*)
 542     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 543     ;;
 544   d10v-*-*)
 545     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 546     ;;
 547   d30v-*-*)
 548     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 549     ;;
 550   fr30-*-elf*)
 551     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 552     ;;
 553   frv-*-*)
 554     noconfigdirs="$noconfigdirs ${libgcj}"
 555     ;;
 556   h8300*-*-*)
 557     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 558     ;;
 559   h8500-*-*)
 560     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 561     ;;
 562   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 563     ;;
 564   hppa*64*-*-linux* | parisc*64*-*-linux*)
 565     # In this case, it's because the hppa64-linux target is for
 566     # the kernel only at this point and has no libc, and thus no
 567     # headers, crt*.o, etc., all of which are needed by these.
 568     noconfigdirs="$noconfigdirs target-zlib"
 569     ;;
 570   parisc*-*-linux* | hppa*-*-linux*)
 571     ;;
 572   hppa*-*-*elf* | \
 573   hppa*-*-lites* | \
 574   hppa*-*-openbsd* | \
 575   hppa*64*-*-*)
 576     noconfigdirs="$noconfigdirs ${libgcj}"
 577     ;;
 578   hppa*-hp-hpux11*)
 579     noconfigdirs="$noconfigdirs ld shellutils"
 580     ;;
 581   hppa*-*-*)
 582     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 583     # build on HP-UX 10.20.
 584     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 585     ;;
 586   i960-*-*)
 587     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 588     ;;
 589   ia64*-*-elf*)
 590     # No gdb support yet.
 591     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 592     ;;
 593   ia64*-**-hpux*)
 594     # No gdb or ld support yet.
 595     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 596     ;;
 597   i370-*-opened*)
 598     ;;
 599   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 600     noconfigdirs="$noconfigdirs ${libgcj}"
 601     ;;
 602   i[[3456789]]86-*-linux*)
 603     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 604     # not build java stuff by default.
 605     case "${target}" in
 606       *-*-*libc1*)
 607         noconfigdirs="$noconfigdirs ${libgcj}";;
 608     esac
 609
 610     # This section makes it possible to build newlib natively on linux.
 611     # If we are using a cross compiler then don't configure newlib.
 612     if test x${is_cross_compiler} != xno ; then
 613       noconfigdirs="$noconfigdirs target-newlib"
 614     fi
 615     noconfigdirs="$noconfigdirs target-libgloss"
 616     # If we are not using a cross compiler, do configure newlib.
 617     # Note however, that newlib will only be configured in this situation
 618     # if the --with-newlib option has been given, because otherwise
 619     # 'target-newlib' will appear in skipdirs.
 620     ;;
 621   i[[3456789]]86-*-mingw32*)
 622     target_configdirs="$target_configdirs target-winsup"
 623     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 624     ;;
 625   x86_64-*-mingw*)
 626     target_configdirs="$target_configdirs target-winsup"
 627     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 628     ;;
 629   *-*-cygwin*)
 630     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 631     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 632     # always build newlib if winsup directory is present.
 633     if test -d "$srcdir/winsup/cygwin"; then
 634       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 635     elif test -d "$srcdir/newlib"; then
 636       echo "Warning: winsup/cygwin is missing so newlib can't be built."
 637     fi
 638     ;;
 639   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 640   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 641     ;;
 642   i[[3456789]]86-*-pe)
 643     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 644     ;;
 645   i[[3456789]]86-*-sco3.2v5*)
 646     # The linker does not yet know about weak symbols in COFF,
 647     # and is not configured to handle mixed ELF and COFF.
 648     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 649     ;;
 650   i[[3456789]]86-*-sco*)
 651     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 652     ;;
 653   i[[3456789]]86-*-solaris2*)
 654     noconfigdirs="$noconfigdirs target-libgloss"
 655     ;;
 656   i[[3456789]]86-*-sysv4*)
 657     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 658     ;;
 659   i[[3456789]]86-*-beos*)
 660     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 661     ;;
 662   i[[3456789]]86-*-rdos*)
 663     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 664     ;;
 665   m32r-*-*)
 666     noconfigdirs="$noconfigdirs ${libgcj}"
 667     ;;
 668   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 669     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 670     ;;
 671   m68k-*-elf*)
 672     noconfigdirs="$noconfigdirs ${libgcj}"
 673     ;;
 674   m68k-*-coff*)
 675     noconfigdirs="$noconfigdirs ${libgcj}"
 676     ;;
 677   mcore-*-pe*)
 678   # The EPOC C++ environment does not support exceptions or rtti,
 679   # and so building libstdc++-v3 tends not to always work.
 680     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 681     ;;
 682   mmix-*-*)
 683     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 684     unsupported_languages="$unsupported_languages fortran java"
 685     ;;
 686   mn10200-*-*)
 687     noconfigdirs="$noconfigdirs ${libgcj}"
 688     ;;
 689   mn10300-*-*)
 690     noconfigdirs="$noconfigdirs ${libgcj}"
 691     ;;
 692   mt-*-*)
 693     noconfigdirs="$noconfigdirs sim"
 694     ;;
 695   powerpc-*-aix*)
 696     # copied from rs6000-*-* entry
 697     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 698     ;;
 699   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 700     target_configdirs="$target_configdirs target-winsup"
 701     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 702     # always build newlib.
 703     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 704     ;;
 705     # This is temporary until we can link against shared libraries
 706   powerpcle-*-solaris*)
 707     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 708     ;;
 709   powerpc-*-beos*)
 710     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 711     ;;
 712   powerpc-*-eabi)
 713     noconfigdirs="$noconfigdirs ${libgcj}"
 714     ;;
 715   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 716     ;;
 717   rs6000-*-lynxos*)
 718     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 719     ;;
 720   rs6000-*-aix*)
 721     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 722     ;;
 723   rs6000-*-*)
 724     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 725     ;;
 726   m68k-apollo-*)
 727     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 728     ;;
 729   mips*-*-irix5*)
 730     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 731     ;;
 732   mips*-*-irix6*)
 733     # Linking libjava exceeds command-line length limits on at least
 734     # IRIX 6.2, but not on IRIX 6.5.
 735     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 736     # <oldham@codesourcery.com>
 737     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 738     ;;
 739   mips*-*-bsd*)
 740     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 741     ;;
 742   mips64*-*-linux*)
 743     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${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   spu-*-*)
 786     skipdirs="target-libssp"
 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   *-mingw64*)
 945     ;;
 946   *-interix*)
 947     host_makefile_frag="config/mh-interix"
 948     ;;
 949   vax-*-ultrix2*)
 950     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 951     tentative_cc=gcc
 952     ;;
 953   *-*-solaris2*)
 954     host_makefile_frag="config/mh-solaris"
 955     ;;
 956   m68k-sun-sunos*)
 957     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 958     # without overflowing the jump tables (-J says to use a 32 bit table)
 959     tentative_cc="cc -J"
 960     ;;
 961   *-hp-hpux*)
 962     tentative_cc="cc -Wp,-H256000"
 963     ;;
 964   *-*-hiux*)
 965     tentative_cc="cc -Wp,-H256000"
 966     ;;
 967   rs6000-*-lynxos*)
 968     # /bin/cc is less than useful for our purposes.  Always use GCC
 969     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 970     host_makefile_frag="config/mh-lynxrs6k"
 971     ;;
 972   powerpc-*-darwin*)
 973     host_makefile_frag="config/mh-ppc-darwin"
 974     ;;
 975   powerpc-*-aix*)
 976     host_makefile_frag="config/mh-ppc-aix"
 977     ;;
 978   rs6000-*-aix*)
 979     host_makefile_frag="config/mh-ppc-aix"
 980     ;;
 981   *-*-lynxos*)
 982     # /bin/cc is less than useful for our purposes.  Always use GCC
 983     tentative_cc="/bin/gcc"
 984     ;;
 985   *-*-sysv4*)
 986     host_makefile_frag="config/mh-sysv4"
 987     ;;
 988   # This is placed last to prevent interfering with the cases above.
 989   i[[3456789]]86-*-*)
 990     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 991     host_makefile_frag="config/mh-x86omitfp"
 992     ;;
 993 esac
 994 fi
 995
 996 # If we aren't going to be using gcc, see if we can extract a definition
 997 # of CC from the fragment.
 998 # Actually, use the 'pre-extracted' version above.
 999 if test -z "${CC}" && test "${build}" = "${host}" ; then
1000   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1001   found=
1002   for dir in $PATH; do
1003     test -z "$dir" && dir=.
1004     if test -f $dir/gcc; then
1005       found=yes
1006       break
1007     fi
1008   done
1009   IFS="$save_ifs"
1010   if test -z "${found}" && test -n "${tentative_cc}" ; then
1011     CC=$tentative_cc
1012   fi
1013 fi
1014
1015 if test "${build}" != "${host}" ; then
1016   # If we are doing a Canadian Cross, in which the host and build systems
1017   # are not the same, we set reasonable default values for the tools.
1018
1019   CC=${CC-${host_alias}-gcc}
1020   CFLAGS=${CFLAGS-"-g -O2"}
1021   CXX=${CXX-${host_alias}-c++}
1022   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1023   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
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   AC_PROG_CC
1036
1037   # We must set the default linker to the linker used by gcc for the correct
1038   # operation of libtool.  If LD is not defined and we are using gcc, try to
1039   # set the LD default to the ld used by gcc.
1040   if test -z "$LD"; then
1041     if test "$GCC" = yes; then
1042       case $build in
1043       *-*-mingw*)
1044         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1045       *)
1046         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1047       esac
1048       case $gcc_prog_ld in
1049       # Accept absolute paths.
1050       [[\\/]* | [A-Za-z]:[\\/]*)]
1051         LD="$gcc_prog_ld" ;;
1052       esac
1053     fi
1054   fi
1055
1056   CXX=${CXX-"c++"}
1057   CFLAGS=${CFLAGS-"-g"}
1058   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1059 fi
1060
1061 ACX_PROG_GNAT
1062 ACX_PROG_CMP_IGNORE_INITIAL
1063
1064 # Check for GMP and MPFR
1065 gmplibs="-lmpfr -lgmp"
1066 gmpinc=
1067 have_gmp=no
1068
1069 # Specify a location for mpfr
1070 # check for this first so it ends up on the link line before gmp.
1071 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    This option has been REMOVED],
1072   AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1073 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH]))
1074
1075 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify prefix directory for installed MPFR package
1076                           Equivalent to --with-mpfr-include=PATH/include
1077                           plus --with-mpfr-lib=PATH/lib])
1078 AC_ARG_WITH(mpfr_include, [  --with-mpfr-include=PATH
1079                           Specify directory for installed MPFR include files])
1080 AC_ARG_WITH(mpfr_lib, [  --with-mpfr-lib=PATH    Specify the directory for the installed MPFR library])
1081
1082 if test "x$with_mpfr" != x; then
1083   gmplibs="-L$with_mpfr/lib $gmplibs"
1084   gmpinc="-I$with_mpfr/include"
1085 fi
1086 if test "x$with_mpfr_include" != x; then
1087   gmpinc="-I$with_mpfr_include"
1088 fi
1089 if test "x$with_mpfr_lib" != x; then
1090   gmplibs="-L$with_mpfr_lib $gmplibs"
1091 fi
1092 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1093   gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/.libs -L$$r/$(HOST_SUBDIR)/mpfr/_libs '"$gmplibs"
1094   gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1095   # Do not test the mpfr version.  Assume that it is sufficient, since
1096   # it is in the source tree, and the library has not been built yet
1097   # but it would be included on the link line in the version check below
1098   # hence making the test fail.
1099   have_gmp=yes
1100 fi
1101
1102 # Specify a location for gmp
1103 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     This option has been REMOVED],
1104   AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1105 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH]))
1106
1107 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify prefix directory for the installed GMP package
1108                           Equivalent to --with-gmp-include=PATH/include
1109                           plus --with-gmp-lib=PATH/lib])
1110 AC_ARG_WITH(gmp_include, [  --with-gmp-include=PATH Specify directory for installed GMP include files])
1111 AC_ARG_WITH(gmp_lib, [  --with-gmp-lib=PATH     Specify the directory for the installed GMP library])
1112
1113
1114 if test "x$with_gmp" != x; then
1115   gmplibs="-L$with_gmp/lib $gmplibs"
1116   gmpinc="-I$with_gmp/include $gmpinc"
1117 fi
1118 if test "x$with_gmp_include" != x; then
1119   gmpinc="-I$with_gmp_include $gmpinc"
1120 fi
1121 if test "x$with_gmp_lib" != x; then
1122   gmplibs="-L$with_gmp_lib $gmplibs"
1123 fi
1124 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1125   gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/.libs -L$$r/$(HOST_SUBDIR)/gmp/_libs '"$gmplibs"
1126   gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1127   # Do not test the gmp version.  Assume that it is sufficient, since
1128   # it is in the source tree, and the library has not been built yet
1129   # but it would be included on the link line in the version check below
1130   # hence making the test fail.
1131   have_gmp=yes
1132 fi
1133
1134 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1135   have_gmp=yes
1136   saved_CFLAGS="$CFLAGS"
1137   CFLAGS="$CFLAGS $gmpinc"
1138   # Check GMP actually works
1139   AC_MSG_CHECKING([for correct version of gmp.h])
1140   AC_TRY_COMPILE([#include "gmp.h"],[
1141   #if __GNU_MP_VERSION < 4 || (__GNU_MP_VERSION == 4 && __GNU_MP_VERSION_MINOR < 1)
1142   choke me
1143   #endif
1144   ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1145
1146   if test x"$have_gmp" = xyes; then
1147     saved_LIBS="$LIBS"
1148     LIBS="$LIBS $gmplibs"
1149     dnl MPFR 2.2.0 is acceptable but buggy, MPFR 2.2.1 is better.
1150     AC_MSG_CHECKING([for correct version of mpfr.h])
1151     AC_TRY_LINK([#include <gmp.h>
1152     #include <mpfr.h>],[
1153     #if MPFR_VERSION < MPFR_VERSION_NUM(2,2,0)
1154     choke me
1155     #endif
1156     mpfr_t n; mpfr_init(n);
1157     mpfr_t x; mpfr_init(x);
1158     int t;
1159     mpfr_atan2 (n, n, x, GMP_RNDN);
1160     mpfr_erfc (n, x, GMP_RNDN);
1161     mpfr_subnormalize (x, t, GMP_RNDN);
1162     ], [AC_TRY_LINK([#include <gmp.h>
1163     #include <mpfr.h>],[
1164     #if MPFR_VERSION < MPFR_VERSION_NUM(2,2,1)
1165     choke me
1166     #endif
1167     mpfr_t n; mpfr_init(n);
1168     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1169      [AC_MSG_RESULT([no]); have_gmp=no])
1170       LIBS="$saved_LIBS"
1171   fi
1172   CFLAGS="$saved_CFLAGS"
1173
1174   if test x$have_gmp != xyes; then
1175     AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.2.1+.
1176 Try the --with-gmp and/or --with-mpfr options to specify their locations.
1177 Copies of these libraries' source code can be found at their respective
1178 hosting sites as well as at ftp://gcc.gnu.org/pub/gcc/infrastructure/.
1179 See also http://gcc.gnu.org/install/prerequisites.html for additional info.
1180 If you obtained GMP and/or MPFR from a vendor distribution package, make
1181 sure that you have installed both the libraries and the header files.
1182 They may be located in separate packages.])
1183   fi
1184 fi
1185
1186 # Flags needed for both GMP and/or MPFR
1187 AC_SUBST(gmplibs)
1188 AC_SUBST(gmpinc)
1189
1190 # By default, C is the only stage 1 language.
1191 stage1_languages=,c,
1192
1193 # Figure out what language subdirectories are present.
1194 # Look if the user specified --enable-languages="..."; if not, use
1195 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1196 # go away some day.
1197 # NB:  embedded tabs in this IF block -- do not untabify
1198 if test -d ${srcdir}/gcc; then
1199   if test x"${enable_languages+set}" != xset; then
1200     if test x"${LANGUAGES+set}" = xset; then
1201       enable_languages="${LANGUAGES}"
1202         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1203     else
1204       enable_languages=all
1205     fi
1206   else
1207     if test x"${enable_languages}" = x ||
1208        test x"${enable_languages}" = xyes;
1209        then
1210       echo configure.in: --enable-languages needs at least one language argument 1>&2
1211       exit 1
1212     fi
1213   fi
1214   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1215
1216   # 'f95' is the old name for the 'fortran' language. We issue a warning
1217   # and make the substitution.
1218   case ,${enable_languages}, in
1219     *,f95,*)
1220       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1221       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1222       ;;
1223   esac
1224
1225   # First scan to see if an enabled language requires some other language.
1226   # We assume that a given config-lang.in will list all the language
1227   # front ends it requires, even if some are required indirectly.
1228   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1229     case ${lang_frag} in
1230       ..) ;;
1231       # The odd quoting in the next line works around
1232       # an apparent bug in bash 1.12 on linux.
1233       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1234       *)
1235         # From the config-lang.in, get $language, $lang_requires
1236         language=
1237         lang_requires=
1238         . ${lang_frag}
1239         for other in ${lang_requires} ; do
1240           case ,${enable_languages}, in
1241             *,$other,*) ;;
1242             *,all,*) ;;
1243             *,$language,*)
1244               echo " \`$other' language required by \`$language'; enabling" 1>&2
1245               enable_languages="${enable_languages},${other}"
1246               ;;
1247           esac
1248         done
1249         ;;
1250     esac
1251   done
1252
1253   new_enable_languages=,c,
1254   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1255   potential_languages=,c,
1256
1257   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1258     case ${lang_frag} in
1259       ..) ;;
1260       # The odd quoting in the next line works around
1261       # an apparent bug in bash 1.12 on linux.
1262       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1263       *)
1264         # From the config-lang.in, get $language, $target_libs,
1265         # $lang_dirs, $boot_language, and $build_by_default
1266         language=
1267         target_libs=
1268         lang_dirs=
1269         subdir_requires=
1270         boot_language=no
1271         build_by_default=yes
1272         . ${lang_frag}
1273         if test x${language} = x; then
1274           echo "${lang_frag} doesn't set \$language." 1>&2
1275           exit 1
1276         fi
1277
1278         case ,${enable_languages}, in
1279           *,${language},*)
1280             # Language was explicitly selected; include it.
1281             add_this_lang=yes
1282             ;;
1283           *,all,*)
1284             # 'all' was selected, select it if it is a default language
1285             add_this_lang=${build_by_default}
1286             ;;
1287           *)
1288             add_this_lang=no
1289             ;;
1290         esac
1291
1292         # Disable languages that need other directories if these aren't available.
1293         for i in $subdir_requires; do
1294           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1295           case ,${enable_languages}, in
1296             *,${language},*)
1297               # Specifically requested language; tell them.
1298               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1299               ;;
1300             *)
1301               # Silently disable.
1302               add_this_lang=unsupported
1303               ;;
1304           esac
1305         done
1306
1307         # Disable Ada if no preexisting GNAT is available.
1308         case ,${enable_languages},:${language}:${have_gnat} in
1309           *,${language},*:ada:no)
1310             # Specifically requested language; tell them.
1311             AC_MSG_ERROR([GNAT is required to build $language])
1312             ;;
1313           *:ada:no)
1314             # Silently disable.
1315             add_this_lang=unsupported
1316             ;;
1317         esac
1318
1319         # Disable a language that is unsupported by the target.
1320         case " $unsupported_languages " in
1321           *" $language "*)
1322             add_this_lang=unsupported
1323             ;;
1324         esac
1325
1326         case $add_this_lang in
1327           unsupported)
1328             # Remove language-dependent dirs.
1329             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1330             ;;
1331           no)
1332             # Remove language-dependent dirs; still show language as supported.
1333             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1334             potential_languages="${potential_languages}${language},"
1335             ;;
1336           yes)
1337             new_enable_languages="${new_enable_languages}${language},"
1338             potential_languages="${potential_languages}${language},"
1339             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1340             case ${boot_language} in
1341               yes)
1342                 # Add to (comma-separated) list of stage 1 languages.
1343                 stage1_languages="${stage1_languages}${language},"
1344                 ;;
1345             esac
1346             ;;
1347         esac
1348         ;;
1349     esac
1350   done
1351
1352   AC_ARG_ENABLE(stage1-languages,
1353 [  --enable-stage1-languages[=all]   choose additional languages to build during
1354                           stage1.  Mostly useful for compiler development.],
1355   [case ,${enable_stage1_languages}, in
1356     ,no,|,,)
1357       # Set it to something that will have no effect in the loop below
1358       enable_stage1_languages=c ;;
1359     ,yes,)
1360       enable_stage1_languages=`echo $new_enable_languages | \
1361         sed -e "s/^,//" -e "s/,$//" ` ;;
1362     *,all,*)
1363       enable_stage1_languages=`echo ,$enable_stage1_languages, | \
1364         sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
1365   esac
1366
1367   # Add "good" languages from enable_stage1_languages to stage1_languages,
1368   # while "bad" languages go in missing_languages.  Leave no duplicates.
1369   for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
1370     case $potential_languages in
1371       *,$i,*)
1372         case $stage1_languages in
1373           *,$i,*) ;;
1374           *) stage1_languages="$stage1_languages$i," ;;
1375         esac ;;
1376       *)
1377         case $missing_languages in
1378           *,$i,*) ;;
1379           *) missing_languages="$missing_languages$i," ;;
1380         esac ;;
1381      esac
1382   done])
1383
1384   # Remove leading/trailing commas that were added for simplicity
1385   potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
1386   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1387   stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
1388   new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
1389
1390   if test "x$missing_languages" != x; then
1391     AC_MSG_ERROR([
1392 The following requested languages could not be built: ${missing_languages}
1393 Supported languages are: ${potential_languages}])
1394   fi
1395   if test "x$new_enable_languages" != "x$enable_languages"; then
1396     echo The following languages will be built: ${new_enable_languages}
1397     enable_languages="$new_enable_languages"
1398   fi
1399
1400   AC_SUBST(stage1_languages)
1401   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1402 fi
1403
1404 # Handle --disable-<component> generically.
1405 for dir in $configdirs $build_configdirs $target_configdirs ; do
1406   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1407   if eval test x\${enable_${dirname}} "=" xno ; then
1408     noconfigdirs="$noconfigdirs $dir"
1409   fi
1410 done
1411
1412 # Check for Boehm's garbage collector
1413 AC_ARG_ENABLE(objc-gc,
1414 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
1415                           the GNU Objective-C runtime.],
1416 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1417   *,objc,*:*:yes:*target-boehm-gc*)
1418     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1419     ;;
1420 esac])
1421
1422 # Make sure we only build Boehm's garbage collector if required.
1423 case ,${enable_languages},:${enable_objc_gc} in
1424   *,objc,*:yes)
1425     # Keep target-boehm-gc if requested for Objective-C.
1426     ;;
1427   *)
1428     # Otherwise remove target-boehm-gc depending on target-libjava.
1429     if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1430       noconfigdirs="$noconfigdirs target-boehm-gc"
1431     fi
1432     ;;
1433 esac
1434
1435 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1436 # $build_configdirs and $target_configdirs.
1437 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1438
1439 notsupp=""
1440 for dir in . $skipdirs $noconfigdirs ; do
1441   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1442   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1443     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1444     if test -r $srcdir/$dirname/configure ; then
1445       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1446         true
1447       else
1448         notsupp="$notsupp $dir"
1449       fi
1450     fi
1451   fi
1452   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1453     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1454     if test -r $srcdir/$dirname/configure ; then
1455       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1456         true
1457       else
1458         notsupp="$notsupp $dir"
1459       fi
1460     fi
1461   fi
1462   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1463     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1464     if test -r $srcdir/$dirname/configure ; then
1465       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1466         true
1467       else
1468         notsupp="$notsupp $dir"
1469       fi
1470     fi
1471   fi
1472 done
1473
1474 # Sometimes the tools are distributed with libiberty but with no other
1475 # libraries.  In that case, we don't want to build target-libiberty.
1476 # Don't let libgcc imply libiberty either.
1477 if test -n "${target_configdirs}" ; then
1478   libgcc=
1479   others=
1480   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1481     if test "$i" = "libgcc"; then
1482       libgcc=target-libgcc
1483     elif test "$i" != "libiberty" ; then
1484       if test -r $srcdir/$i/configure ; then
1485         others=yes;
1486         break;
1487       fi
1488     fi
1489   done
1490   if test -z "${others}" ; then
1491     target_configdirs=$libgcc
1492   fi
1493 fi
1494
1495 # Quietly strip out all directories which aren't configurable in this tree.
1496 # This relies on all configurable subdirectories being autoconfiscated, which
1497 # is now the case.
1498 build_configdirs_all="$build_configdirs"
1499 build_configdirs=
1500 for i in ${build_configdirs_all} ; do
1501   j=`echo $i | sed -e s/build-//g`
1502   if test -f ${srcdir}/$j/configure ; then
1503     build_configdirs="${build_configdirs} $i"
1504   fi
1505 done
1506
1507 configdirs_all="$configdirs"
1508 configdirs=
1509 for i in ${configdirs_all} ; do
1510   if test -f ${srcdir}/$i/configure ; then
1511     configdirs="${configdirs} $i"
1512   fi
1513 done
1514
1515 target_configdirs_all="$target_configdirs"
1516 target_configdirs=
1517 for i in ${target_configdirs_all} ; do
1518   j=`echo $i | sed -e s/target-//g`
1519   if test -f ${srcdir}/$j/configure ; then
1520     target_configdirs="${target_configdirs} $i"
1521   fi
1522 done
1523
1524 # Produce a warning message for the subdirs we can't configure.
1525 # This isn't especially interesting in the Cygnus tree, but in the individual
1526 # FSF releases, it's important to let people know when their machine isn't
1527 # supported by the one or two programs in a package.
1528
1529 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1530   # If $appdirs is non-empty, at least one of those directories must still
1531   # be configured, or we error out.  (E.g., if the gas release supports a
1532   # specified target in some subdirs but not the gas subdir, we shouldn't
1533   # pretend that all is well.)
1534   if test -n "$appdirs" ; then
1535     for dir in $appdirs ; do
1536       if test -r $dir/Makefile.in ; then
1537         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1538           appdirs=""
1539           break
1540         fi
1541         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1542           appdirs=""
1543           break
1544         fi
1545       fi
1546     done
1547     if test -n "$appdirs" ; then
1548       echo "*** This configuration is not supported by this package." 1>&2
1549       exit 1
1550     fi
1551   fi
1552   # Okay, some application will build, or we don't care to check.  Still
1553   # notify of subdirs not getting built.
1554   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1555   echo "    ${notsupp}" 1>&2
1556   echo "    (Any other directories should still work fine.)" 1>&2
1557 fi
1558
1559 case "$host" in
1560   *msdosdjgpp*)
1561     enable_gdbtk=no ;;
1562 esac
1563
1564 copy_dirs=
1565
1566 AC_ARG_WITH([build-sysroot],
1567   [  --with-build-sysroot=sysroot
1568                           use sysroot as the system root during the build],
1569   [if test x"$withval" != x ; then
1570      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1571    fi],
1572   [SYSROOT_CFLAGS_FOR_TARGET=])
1573 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1574
1575 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1576 # the named directory are copied to $(tooldir)/sys-include.
1577 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1578   if test x${is_cross_compiler} = xno ; then
1579     echo 1>&2 '***' --with-headers is only supported when cross compiling
1580     exit 1
1581   fi
1582   if test x"${with_headers}" != xyes ; then
1583     case "${exec_prefixoption}" in
1584     "") x=${prefix} ;;
1585     *) x=${exec_prefix} ;;
1586     esac
1587     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1588   fi
1589 fi
1590
1591 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1592 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1593 # are permitted.
1594 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1595   if test x${is_cross_compiler} = xno ; then
1596     echo 1>&2 '***' --with-libs is only supported when cross compiling
1597     exit 1
1598   fi
1599   if test x"${with_libs}" != xyes ; then
1600     # Copy the libraries in reverse order, so that files in the first named
1601     # library override files in subsequent libraries.
1602     case "${exec_prefixoption}" in
1603     "") x=${prefix} ;;
1604     *) x=${exec_prefix} ;;
1605     esac
1606     for l in ${with_libs}; do
1607       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1608     done
1609   fi
1610 fi
1611
1612 # Set with_gnu_as and with_gnu_ld as appropriate.
1613 #
1614 # This is done by determining whether or not the appropriate directory
1615 # is available, and by checking whether or not specific configurations
1616 # have requested that this magic not happen.
1617 #
1618 # The command line options always override the explicit settings in
1619 # configure.in, and the settings in configure.in override this magic.
1620 #
1621 # If the default for a toolchain is to use GNU as and ld, and you don't
1622 # want to do that, then you should use the --without-gnu-as and
1623 # --without-gnu-ld options for the configure script.
1624
1625 if test x${use_gnu_as} = x &&
1626    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1627   with_gnu_as=yes
1628   extra_host_args="$extra_host_args --with-gnu-as"
1629 fi
1630
1631 if test x${use_gnu_ld} = x &&
1632    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1633   with_gnu_ld=yes
1634   extra_host_args="$extra_host_args --with-gnu-ld"
1635 fi
1636
1637 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1638 # can detect this case.
1639
1640 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1641   with_newlib=yes
1642   extra_host_args="$extra_host_args --with-newlib"
1643 fi
1644
1645 # Handle ${copy_dirs}
1646 set fnord ${copy_dirs}
1647 shift
1648 while test $# != 0 ; do
1649   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1650     :
1651   else
1652     echo Copying $1 to $2
1653
1654     # Use the install script to create the directory and all required
1655     # parent directories.
1656     if test -d $2 ; then
1657       :
1658     else
1659       echo >config.temp
1660       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1661     fi
1662
1663     # Copy the directory, assuming we have tar.
1664     # FIXME: Should we use B in the second tar?  Not all systems support it.
1665     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1666
1667     # It is the responsibility of the user to correctly adjust all
1668     # symlinks.  If somebody can figure out how to handle them correctly
1669     # here, feel free to add the code.
1670
1671     echo $1 > $2/COPIED
1672   fi
1673   shift; shift
1674 done
1675
1676 # Determine a target-dependent exec_prefix that the installed
1677 # gcc will search in.  Keep this list sorted by triplet, with
1678 # the *-*-osname triplets last.
1679 md_exec_prefix=
1680 case "${target}" in
1681   alpha*-*-*vms*)
1682     md_exec_prefix=/gnu/lib/gcc-lib
1683     ;;
1684   i[34567]86-pc-msdosdjgpp*)
1685     md_exec_prefix=/dev/env/DJDIR/bin
1686     ;;
1687   i[34567]86-*-sco3.2v5*)
1688     if test $with_gnu_as = yes; then
1689       md_exec_prefix=/usr/gnu/bin
1690     else
1691       md_exec_prefix=/usr/ccs/bin/elf
1692     fi
1693     ;;
1694
1695   mn10300-*-* | \
1696   powerpc-*-chorusos* | \
1697   powerpc*-*-eabi* | \
1698   powerpc*-*-sysv* | \
1699   powerpc*-*-kaos* | \
1700   s390x-ibm-tpf*)
1701     md_exec_prefix=/usr/ccs/bin
1702     ;;
1703   sparc64-*-elf*)
1704     ;;
1705   v850*-*-*)
1706     md_exec_prefix=/usr/ccs/bin
1707     ;;
1708   xtensa-*-elf*)
1709     ;;
1710
1711   *-*-beos* | \
1712   *-*-elf* | \
1713   *-*-hpux* | \
1714   *-*-netware* | \
1715   *-*-nto-qnx* | \
1716   *-*-rtems* | \
1717   *-*-solaris2* | \
1718   *-*-sysv[45]* | \
1719   *-*-vxworks* | \
1720   *-wrs-windiss)
1721     md_exec_prefix=/usr/ccs/bin
1722     ;;
1723 esac
1724
1725 extra_arflags_for_target=
1726 extra_nmflags_for_target=
1727 extra_ranlibflags_for_target=
1728 target_makefile_frag=/dev/null
1729 case "${target}" in
1730   mep*-*-*)
1731     target_makefile_frag="config/mt-mep"
1732     ;;
1733   spu-*-*)
1734     target_makefile_frag="config/mt-spu"
1735     ;;
1736   *-*-netware*)
1737     target_makefile_frag="config/mt-netware"
1738     ;;
1739   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1740     target_makefile_frag="config/mt-gnu"
1741     ;;
1742   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1743     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1744     # commands to handle both 32-bit and 64-bit objects.  These flags are
1745     # harmless if we're using GNU nm or ar.
1746     extra_arflags_for_target=" -X32_64"
1747     extra_nmflags_for_target=" -B -X32_64"
1748     ;;
1749   *-*-darwin*)
1750     # ranlib from Darwin requires the -c flag to look at common symbols.
1751     extra_ranlibflags_for_target=" -c"
1752     ;;
1753   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1754     target_makefile_frag="config/mt-wince"
1755     ;;
1756 esac
1757
1758 alphaieee_frag=/dev/null
1759 case $target in
1760   alpha*-*-*)
1761     # This just makes sure to use the -mieee option to build target libs.
1762     # This should probably be set individually by each library.
1763     alphaieee_frag="config/mt-alphaieee"
1764     ;;
1765 esac
1766
1767 # If --enable-target-optspace always use -Os instead of -O2 to build
1768 # the target libraries, similarly if it is not specified, use -Os
1769 # on selected platforms.
1770 ospace_frag=/dev/null
1771 case "${enable_target_optspace}:${target}" in
1772   yes:*)
1773     ospace_frag="config/mt-ospace"
1774     ;;
1775   :d30v-*)
1776     ospace_frag="config/mt-d30v"
1777     ;;
1778   :m32r-* | :d10v-* | :fr30-*)
1779     ospace_frag="config/mt-ospace"
1780     ;;
1781   no:* | :*)
1782     ;;
1783   *)
1784     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1785     ;;
1786 esac
1787
1788 # Default to using --with-stabs for certain targets.
1789 if test x${with_stabs} = x ; then
1790   case "${target}" in
1791   mips*-*-irix[[56]]*)
1792     ;;
1793   mips*-*-* | alpha*-*-osf*)
1794     with_stabs=yes;
1795     extra_host_args="${extra_host_args} --with-stabs"
1796     ;;
1797   esac
1798 fi
1799
1800 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1801 # them automatically.
1802 case "${host}" in
1803   hppa*64*-*-hpux11*)
1804     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1805     ;;
1806 esac
1807
1808 # Some systems (e.g., one of the i386-aix systems the gas testers are
1809 # using) don't handle "\$" correctly, so don't use it here.
1810 tooldir='${exec_prefix}'/${target_alias}
1811 build_tooldir=${tooldir}
1812
1813 # Create a .gdbinit file which runs the one in srcdir
1814 # and tells GDB to look there for source files.
1815
1816 if test -r ${srcdir}/.gdbinit ; then
1817   case ${srcdir} in
1818     .) ;;
1819     *) cat > ./.gdbinit <<EOF
1820 # ${NO_EDIT}
1821 dir ${srcdir}
1822 dir .
1823 source ${srcdir}/.gdbinit
1824 EOF
1825     ;;
1826   esac
1827 fi
1828
1829 # Make sure that the compiler is able to generate an executable.  If it
1830 # can't, we are probably in trouble.  We don't care whether we can run the
1831 # executable--we might be using a cross compiler--we only care whether it
1832 # can be created.  At this point the main configure script has set CC.
1833 we_are_ok=no
1834 echo "int main () { return 0; }" > conftest.c
1835 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1836 if test $? = 0 ; then
1837   if test -s conftest || test -s conftest.exe ; then
1838     we_are_ok=yes
1839   fi
1840 fi
1841 case $we_are_ok in
1842   no)
1843     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1844     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1845     rm -f conftest*
1846     exit 1
1847     ;;
1848 esac
1849 rm -f conftest*
1850
1851 # The Solaris /usr/ucb/cc compiler does not appear to work.
1852 case "${host}" in
1853   sparc-sun-solaris2*)
1854       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1855       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1856           could_use=
1857           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1858           if test -d /opt/cygnus/bin ; then
1859               if test "$could_use" = "" ; then
1860                   could_use="/opt/cygnus/bin"
1861               else
1862                   could_use="$could_use or /opt/cygnus/bin"
1863               fi
1864           fi
1865         if test "$could_use" = "" ; then
1866             echo "Warning: compilation may fail because you're using"
1867             echo "/usr/ucb/cc.  You should change your PATH or CC "
1868             echo "variable and rerun configure."
1869         else
1870             echo "Warning: compilation may fail because you're using"
1871             echo "/usr/ucb/cc, when you should use the C compiler from"
1872             echo "$could_use.  You should change your"
1873             echo "PATH or CC variable and rerun configure."
1874         fi
1875       fi
1876   ;;
1877 esac
1878
1879 case "${host}" in
1880   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1881   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1882   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1883 esac
1884
1885 # Record target_configdirs and the configure arguments for target and
1886 # build configuration in Makefile.
1887 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1888 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1889
1890 # Determine whether gdb needs tk/tcl or not.
1891 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1892 # and in that case we want gdb to be built without tk.  Ugh!
1893 # In fact I believe gdb is the *only* package directly dependent on tk,
1894 # so we should be able to put the 'maybe's in unconditionally and
1895 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1896 # 100% sure that that's safe though.
1897
1898 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1899 case "$enable_gdbtk" in
1900   no)
1901     GDB_TK="" ;;
1902   yes)
1903     GDB_TK="${gdb_tk}" ;;
1904   *)
1905     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1906     # distro.  Eventually someone will fix this and move Insight, nee
1907     # gdbtk to a separate directory.
1908     if test -d ${srcdir}/gdb/gdbtk ; then
1909       GDB_TK="${gdb_tk}"
1910     else
1911       GDB_TK=""
1912     fi
1913     ;;
1914 esac
1915 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1916 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1917
1918 # Strip out unwanted targets.
1919
1920 # While at that, we remove Makefiles if we were started for recursive
1921 # configuration, so that the top-level Makefile reconfigures them,
1922 # like we used to do when configure itself was recursive.
1923
1924 # Loop over modules.  $extrasub must be used with care, limiting as
1925 # much as possible the usage of range addresses.  That's because autoconf
1926 # splits the sed script to overcome limits in the number of commands,
1927 # and relying on carefully-timed sed passes may turn out to be very hard
1928 # to maintain later.  In this particular case, you just have to be careful
1929 # not to nest @if/@endif pairs, because configure will not warn you at all.
1930
1931 AC_ARG_ENABLE([bootstrap],
1932 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1933 enable_bootstrap=default)
1934
1935 # Issue errors and warnings for invalid/strange bootstrap combinations.
1936 case "$configdirs" in
1937   *gcc*) have_compiler=yes ;;
1938   *) have_compiler=no ;;
1939 esac
1940
1941 case "$have_compiler:$host:$target:$enable_bootstrap" in
1942   *:*:*:no) ;;
1943
1944   # Default behavior.  Enable bootstrap if we have a compiler
1945   # and we are in a native configuration.
1946   yes:$build:$build:default)
1947     enable_bootstrap=yes ;;
1948
1949   *:*:*:default)
1950     enable_bootstrap=no ;;
1951
1952   # We have a compiler and we are in a native configuration, bootstrap is ok
1953   yes:$build:$build:yes)
1954     ;;
1955
1956   # Other configurations, but we have a compiler.  Assume the user knows
1957   # what he's doing.
1958   yes:*:*:yes)
1959     AC_MSG_WARN([trying to bootstrap a cross compiler])
1960     ;;
1961
1962   # No compiler: if they passed --enable-bootstrap explicitly, fail
1963   no:*:*:yes)
1964     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1965
1966   # Fail if wrong command line
1967   *)
1968     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1969     ;;
1970 esac
1971
1972 # Adjust the toplevel makefile according to whether bootstrap was selected.
1973 case "$enable_bootstrap" in
1974   yes)
1975     bootstrap_suffix=bootstrap ;;
1976   no)
1977     bootstrap_suffix=no-bootstrap ;;
1978 esac
1979
1980 for module in ${build_configdirs} ; do
1981   if test -z "${no_recursion}" \
1982      && test -f ${build_subdir}/${module}/Makefile; then
1983     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1984     rm -f ${build_subdir}/${module}/Makefile
1985   fi
1986   extrasub="$extrasub
1987 /^@if build-$module\$/d
1988 /^@endif build-$module\$/d
1989 /^@if build-$module-$bootstrap_suffix\$/d
1990 /^@endif build-$module-$bootstrap_suffix\$/d"
1991 done
1992 for module in ${configdirs} ; do
1993   if test -z "${no_recursion}"; then
1994     for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
1995       if test -f ${file}; then
1996         echo 1>&2 "*** removing ${file} to force reconfigure"
1997         rm -f ${file}
1998       fi
1999     done
2000   fi
2001   extrasub="$extrasub
2002 /^@if $module\$/d
2003 /^@endif $module\$/d
2004 /^@if $module-$bootstrap_suffix\$/d
2005 /^@endif $module-$bootstrap_suffix\$/d"
2006 done
2007 for module in ${target_configdirs} ; do
2008   if test -z "${no_recursion}" \
2009      && test -f ${target_subdir}/${module}/Makefile; then
2010     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2011     rm -f ${target_subdir}/${module}/Makefile
2012   fi
2013   extrasub="$extrasub
2014 /^@if target-$module\$/d
2015 /^@endif target-$module\$/d
2016 /^@if target-$module-$bootstrap_suffix\$/d
2017 /^@endif target-$module-$bootstrap_suffix\$/d"
2018 done
2019
2020 extrasub="$extrasub
2021 /^@if /,/^@endif /d"
2022
2023 # Create the serialization dependencies.  This uses a temporary file.
2024
2025 AC_ARG_ENABLE([serial-configure],
2026 [  --enable-serial-[{host,target,build}-]configure
2027                           Force sequential configuration of
2028                           sub-packages for the host, target or build
2029                           machine, or all sub-packages])
2030
2031 case ${enable_serial_configure} in
2032   yes)
2033     enable_serial_build_configure=yes
2034     enable_serial_host_configure=yes
2035     enable_serial_target_configure=yes
2036     ;;
2037 esac
2038
2039 # These force 'configure's to be done one at a time, to avoid problems
2040 # with contention over a shared config.cache.
2041 rm -f serdep.tmp
2042 echo '# serdep.tmp' > serdep.tmp
2043 olditem=
2044 test "x${enable_serial_build_configure}" = xyes &&
2045 for item in ${build_configdirs} ; do
2046   case ${olditem} in
2047     "") ;;
2048     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2049   esac
2050   olditem=${item}
2051 done
2052 olditem=
2053 test "x${enable_serial_host_configure}" = xyes &&
2054 for item in ${configdirs} ; do
2055   case ${olditem} in
2056     "") ;;
2057     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2058   esac
2059   olditem=${item}
2060 done
2061 olditem=
2062 test "x${enable_serial_target_configure}" = xyes &&
2063 for item in ${target_configdirs} ; do
2064   case ${olditem} in
2065     "") ;;
2066     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2067   esac
2068   olditem=${item}
2069 done
2070 serialization_dependencies=serdep.tmp
2071 AC_SUBST_FILE(serialization_dependencies)
2072
2073 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
2074 # target and nonopt.  These are the ones we might not want to pass
2075 # down to subconfigures.  Also strip program-prefix, program-suffix,
2076 # and program-transform-name, so that we can pass down a consistent
2077 # program-transform-name.  If autoconf has put single quotes around
2078 # any of these arguments (because they contain shell metacharacters)
2079 # then this will fail; in practice this only happens for
2080 # --program-transform-name, so be sure to override --program-transform-name
2081 # at the end of the argument list.
2082 # These will be expanded by make, so quote '$'.
2083 cat <<\EOF_SED > conftestsed
2084 s/ --no[[^ ]]*/ /g
2085 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
2086 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
2087 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
2088 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
2089 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
2090 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
2091 s/ -cache-file[[= ]][[^ ]]*//g
2092 s/ -srcdir[[= ]][[^ ]]*//g
2093 s/ -host[[= ]][[^ ]]*//g
2094 s/ -build[[= ]][[^ ]]*//g
2095 s/ -target[[= ]][[^ ]]*//g
2096 s/ -program-prefix[[= ]][[^ ]]*//g
2097 s/ -program-suffix[[= ]][[^ ]]*//g
2098 s/ -program-transform-name[[= ]][[^ ]]*//g
2099 s/ [[^' -][^ ]*] / /
2100 s/^ *//;s/ *$//
2101 s,\$,$$,g
2102 EOF_SED
2103 sed -f conftestsed <<EOF_SED > conftestsed.out
2104  ${ac_configure_args}
2105 EOF_SED
2106 baseargs=`cat conftestsed.out`
2107 rm -f conftestsed conftestsed.out
2108
2109 # Add in --program-transform-name, after --program-prefix and
2110 # --program-suffix have been applied to it.  Autoconf has already
2111 # doubled dollar signs and backslashes in program_transform_name; we want
2112 # the backslashes un-doubled, and then the entire thing wrapped in single
2113 # quotes, because this will be expanded first by make and then by the shell.
2114 # Also, because we want to override the logic in subdir configure scripts to
2115 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2116 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2117 ${program_transform_name}
2118 EOF_SED
2119 gcc_transform_name=`cat conftestsed.out`
2120 rm -f conftestsed.out
2121 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2122
2123 # For the build-side libraries, we just need to pretend we're native,
2124 # and not use the same cache file.  Multilibs are neither needed nor
2125 # desired.
2126 build_configargs="--cache-file=../config.cache ${baseargs}"
2127
2128 # For host modules, accept cache file option, or specification as blank.
2129 case "${cache_file}" in
2130 "") # empty
2131   cache_file_option="" ;;
2132 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2133   cache_file_option="--cache-file=${cache_file}" ;;
2134 *) # relative path
2135   cache_file_option="--cache-file=../${cache_file}" ;;
2136 esac
2137
2138 # Host dirs don't like to share a cache file either, horribly enough.
2139 # This seems to be due to autoconf 2.5x stupidity.
2140 host_configargs="--cache-file=./config.cache ${extra_host_args} ${baseargs}"
2141
2142 target_configargs=${baseargs}
2143
2144 # Passing a --with-cross-host argument lets the target libraries know
2145 # whether they are being built with a cross-compiler or being built
2146 # native.  However, it would be better to use other mechanisms to make the
2147 # sorts of decisions they want to make on this basis.  Please consider
2148 # this option to be deprecated.  FIXME.
2149 if test x${is_cross_compiler} = xyes ; then
2150   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2151 fi
2152
2153 # Default to --enable-multilib.
2154 if test x${enable_multilib} = x ; then
2155   target_configargs="--enable-multilib ${target_configargs}"
2156 fi
2157
2158 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2159 # changed from the earlier setting of with_newlib.
2160 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2161   target_configargs="--with-newlib ${target_configargs}"
2162 fi
2163
2164 # Different target subdirs use different values of certain variables
2165 # (notably CXX).  Worse, multilibs use *lots* of different values.
2166 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2167 # it doesn't automatically accept command-line overrides of them.
2168 # This means it's not safe for target subdirs to share a cache file,
2169 # which is disgusting, but there you have it.  Hopefully this can be
2170 # fixed in future.  It's still worthwhile to use a cache file for each
2171 # directory.  I think.
2172
2173 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2174 # We need to pass --target, as newer autoconf's requires consistency
2175 # for target_alias and gcc doesn't manage it consistently.
2176 target_configargs="--cache-file=./config.cache ${target_configargs}"
2177
2178 FLAGS_FOR_TARGET=
2179 case " $target_configdirs " in
2180  *" newlib "*)
2181   case " $target_configargs " in
2182   *" --with-newlib "*)
2183    case "$target" in
2184    *-cygwin*)
2185      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' ;;
2186    esac
2187
2188    # If we're not building GCC, don't discard standard headers.
2189    if test -d ${srcdir}/gcc; then
2190      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2191
2192      if test "${build}" != "${host}"; then
2193        # On Canadian crosses, CC_FOR_TARGET will have already been set
2194        # by `configure', so we won't have an opportunity to add -Bgcc/
2195        # to it.  This is right: we don't want to search that directory
2196        # for binaries, but we want the header files in there, so add
2197        # them explicitly.
2198        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2199
2200        # Someone might think of using the pre-installed headers on
2201        # Canadian crosses, in case the installed compiler is not fully
2202        # compatible with the compiler being built.  In this case, it
2203        # would be better to flag an error than risking having
2204        # incompatible object files being constructed.  We can't
2205        # guarantee that an error will be flagged, but let's hope the
2206        # compiler will do it, when presented with incompatible header
2207        # files.
2208      fi
2209    fi
2210
2211    case "${target}-${is_cross_compiler}" in
2212    i[[3456789]]86-*-linux*-no)
2213       # Here host == target, so we don't need to build gcc,
2214       # so we don't want to discard standard headers.
2215       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2216       ;;
2217    *)
2218       # If we're building newlib, use its generic headers last, but search
2219       # for any libc-related directories first (so make it the last -B
2220       # switch).
2221       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2222       ;;
2223    esac
2224    ;;
2225   esac
2226   ;;
2227 esac
2228 case "$target" in
2229 *-mingw*)
2230   # Can't be handled as Cygwin above since Mingw does not use newlib.
2231   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include' ;;
2232 esac
2233
2234 # Allow the user to override the flags for
2235 # our build compiler if desired.
2236 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2237
2238 # On Canadian crosses, we'll be searching the right directories for
2239 # the previously-installed cross compiler, so don't bother to add
2240 # flags for directories within the install tree of the compiler
2241 # being built; programs in there won't even run.
2242 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2243   # Search for pre-installed headers if nothing else fits.
2244   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2245 fi
2246
2247 if test "x${use_gnu_ld}" = x &&
2248    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2249   # Arrange for us to find uninstalled linker scripts.
2250   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2251 fi
2252
2253 # Search for other target-specific linker scripts and such.
2254 case "${target}" in
2255   m32c-*-* )
2256     if test -d ${srcdir}/libgloss/m32c; then
2257       # This is for crt0.o
2258       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2259       # This is for r8c.ld
2260       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2261       # This is for libnosys.a
2262       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2263     fi
2264     ;;
2265 esac
2266
2267 case $target in
2268   mep*)
2269     FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
2270     ;;
2271 esac
2272
2273 # Makefile fragments.
2274 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2275 do
2276   eval fragval=\$$frag
2277   if test $fragval != /dev/null; then
2278     eval $frag=${srcdir}/$fragval
2279   fi
2280 done
2281 AC_SUBST_FILE(host_makefile_frag)
2282 AC_SUBST_FILE(target_makefile_frag)
2283 AC_SUBST_FILE(alphaieee_frag)
2284 AC_SUBST_FILE(ospace_frag)
2285
2286 # Miscellanea: directories, flags, etc.
2287 AC_SUBST(RPATH_ENVVAR)
2288 AC_SUBST(tooldir)
2289 AC_SUBST(build_tooldir)
2290 AC_SUBST(CONFIGURE_GDB_TK)
2291 AC_SUBST(GDB_TK)
2292 AC_SUBST(INSTALL_GDB_TK)
2293
2294 # Build module lists & subconfigure args.
2295 AC_SUBST(build_configargs)
2296 AC_SUBST(build_configdirs)
2297
2298 # Host module lists & subconfigure args.
2299 AC_SUBST(host_configargs)
2300 AC_SUBST(configdirs)
2301
2302 # Target module lists & subconfigure args.
2303 AC_SUBST(target_configargs)
2304
2305
2306 # Build tools.
2307 AC_SUBST(CC_FOR_BUILD)
2308 AC_SUBST(config_shell)
2309
2310 # Generate default definitions for YACC, M4, LEX and other programs that run
2311 # on the build machine.  These are used if the Makefile can't locate these
2312 # programs in objdir.
2313 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2314
2315 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2316 case " $build_configdirs " in
2317   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2318   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2319 esac
2320
2321 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2322 case " $build_configdirs " in
2323   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2324 esac
2325
2326 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2327 case " $build_configdirs " in
2328   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2329 esac
2330
2331 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2332 case " $build_configdirs " in
2333   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2334   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2335 esac
2336
2337 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2338 case " $build_configdirs " in
2339   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2340 esac
2341
2342 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2343 case " $build_configdirs " in
2344   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2345   *)
2346 changequote(,)
2347     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2348     # higher, else we use the "missing" dummy.
2349     if ${MAKEINFO} --version \
2350        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2351       :
2352     else
2353       MAKEINFO="$MISSING makeinfo"
2354     fi
2355     ;;
2356 changequote([,])
2357 esac
2358
2359 # FIXME: expect and dejagnu may become build tools?
2360
2361 AC_CHECK_PROGS(EXPECT, expect, expect)
2362 case " $configdirs " in
2363   *" expect "*)
2364     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2365     ;;
2366 esac
2367
2368 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2369 case " $configdirs " in
2370   *" dejagnu "*)
2371     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2372     ;;
2373 esac
2374
2375
2376 # Host tools.
2377 NCN_STRICT_CHECK_TOOLS(AR, ar)
2378 NCN_STRICT_CHECK_TOOLS(AS, as)
2379 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2380 NCN_STRICT_CHECK_TOOLS(LD, ld)
2381 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2382 NCN_STRICT_CHECK_TOOLS(NM, nm)
2383 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2384 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2385 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2386 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2387 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2388 AC_SUBST(CC)
2389 AC_SUBST(CXX)
2390 AC_SUBST(CFLAGS)
2391 AC_SUBST(CFLAGS_FOR_BUILD)
2392 AC_SUBST(CXXFLAGS)
2393
2394 # Target tools.
2395 AC_ARG_WITH([build-time-tools],
2396   [  --with-build-time-tools=path
2397                           use given path to find target tools during the build],
2398   [case x"$withval" in
2399      x/*) ;;
2400      *)
2401        with_build_time_tools=
2402        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2403        ;;
2404    esac],
2405   [with_build_time_tools=])
2406
2407 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2408 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2409 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2410 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2411 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2412
2413 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2414 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2415 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2416 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2417 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2418 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2419 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2420 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2421 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2422 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2423
2424 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2425
2426 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2427 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2428 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2429 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2430                 [gcc/g++ -B$$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],
2431                 c++)
2432 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2433                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2434                 c++)
2435 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2436 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2437 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2438                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2439 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2440                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2441 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2442 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2443 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2444 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2445 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2446 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2447 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2448
2449 AC_SUBST(FLAGS_FOR_TARGET)
2450 AC_SUBST(RAW_CXX_FOR_TARGET)
2451
2452 # Certain tools may need extra flags.
2453 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2454 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2455 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2456
2457 # When building target libraries, except in a Canadian cross, we use
2458 # the same toolchain as the compiler we just built.
2459 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2460 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2461 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2462 if test $host = $build; then
2463   case " $configdirs " in
2464     *" gcc "*)
2465       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2466       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2467       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2468       ;;
2469   esac
2470 fi
2471
2472 AC_SUBST(COMPILER_AS_FOR_TARGET)
2473 AC_SUBST(COMPILER_LD_FOR_TARGET)
2474 AC_SUBST(COMPILER_NM_FOR_TARGET)
2475
2476 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2477 AC_ARG_ENABLE(maintainer-mode,
2478 [  --enable-maintainer-mode enable make rules and dependencies not useful
2479                           (and sometimes confusing) to the casual installer],
2480       USE_MAINTAINER_MODE=$enableval,
2481       USE_MAINTAINER_MODE=no)
2482 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2483 AC_SUBST(MAINTAINER_MODE_TRUE)
2484 AC_SUBST(MAINTAINER_MODE_FALSE)
2485 if test "$USE_MAINTAINER_MODE" = yes; then
2486   MAINTAINER_MODE_TRUE=
2487   MAINTAINER_MODE_FALSE='#'
2488 else
2489   MAINTAINER_MODE_TRUE='#'
2490   MAINTAINER_MODE_FALSE=
2491 fi
2492 MAINT=$MAINTAINER_MODE_TRUE
2493 AC_SUBST(MAINT)dnl
2494
2495 # ---------------------
2496 # GCC bootstrap support
2497 # ---------------------
2498
2499 # Stage specific cflags for build.
2500 stage1_cflags="-g"
2501 case $build in
2502   vax-*-*)
2503     case ${GCC} in
2504       yes) stage1_cflags="-g -Wa,-J" ;;
2505       *) stage1_cflags="-g -J" ;;
2506     esac ;;
2507 esac
2508
2509 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
2510 if test "$GCC" = yes; then
2511   saved_CFLAGS="$CFLAGS"
2512
2513   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
2514   CFLAGS="$CFLAGS -fkeep-inline-functions"
2515   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
2516   AC_TRY_COMPILE(,,
2517     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
2518     [AC_MSG_RESULT([no])])
2519
2520   CFLAGS="$saved_CFLAGS"
2521 fi
2522
2523 AC_SUBST(stage1_cflags)
2524
2525 # Enable --enable-checking in stage1 of the compiler.
2526 AC_ARG_ENABLE(stage1-checking,
2527 [  --enable-stage1-checking[=all]   choose additional checking for stage1
2528                           of the compiler.],
2529 [stage1_checking=--enable-checking=${enable_stage1_checking}],
2530 [if test "x$enable_checking" = xno; then
2531   stage1_checking=--enable-checking
2532 else
2533   stage1_checking=--enable-checking${enable_checking+=}$enable_checking
2534 fi])
2535 AC_SUBST(stage1_checking)
2536
2537 # Enable -Werror in bootstrap stage2 and later.
2538 AC_ARG_ENABLE(werror,
2539 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2540 [if test -d gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
2541   enable_werror=yes
2542 else
2543   enable_werror=no
2544 fi])
2545 case ${enable_werror} in
2546   yes) stage2_werror_flag="--enable-werror-always" ;;
2547   *) stage2_werror_flag="" ;;
2548 esac
2549 AC_SUBST(stage2_werror_flag)
2550
2551 # Flags needed to enable html installing and building
2552 AC_ARG_WITH(datarootdir,
2553 [  --with-datarootdir   Use datarootdir as the data root directory.],
2554 [datarootdir="\${prefix}/${withval}"],
2555 [datarootdir="\${prefix}/share"])
2556
2557 AC_ARG_WITH(docdir,
2558 [  --with-docdir        Install documentation in this directory.],
2559 [docdir="\${prefix}/${withval}"],
2560 [docdir="\${datarootdir}/doc"])
2561
2562 AC_ARG_WITH(htmldir,
2563 [  --with-htmldir       Install html in this directory.],
2564 [htmldir="\${prefix}/${withval}"],
2565 [htmldir="\${docdir}"])
2566
2567 AC_SUBST(datarootdir)
2568 AC_SUBST(docdir)
2569 AC_SUBST(htmldir)
2570
2571 AC_OUTPUT(Makefile)