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   spu-*-*)
1731     target_makefile_frag="config/mt-spu"
1732     ;;
1733   *-*-netware*)
1734     target_makefile_frag="config/mt-netware"
1735     ;;
1736   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1737     target_makefile_frag="config/mt-gnu"
1738     ;;
1739   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1740     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1741     # commands to handle both 32-bit and 64-bit objects.  These flags are
1742     # harmless if we're using GNU nm or ar.
1743     extra_arflags_for_target=" -X32_64"
1744     extra_nmflags_for_target=" -B -X32_64"
1745     ;;
1746   *-*-darwin*)
1747     # ranlib from Darwin requires the -c flag to look at common symbols.
1748     extra_ranlibflags_for_target=" -c"
1749     ;;
1750   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1751     target_makefile_frag="config/mt-wince"
1752     ;;
1753 esac
1754
1755 alphaieee_frag=/dev/null
1756 case $target in
1757   alpha*-*-*)
1758     # This just makes sure to use the -mieee option to build target libs.
1759     # This should probably be set individually by each library.
1760     alphaieee_frag="config/mt-alphaieee"
1761     ;;
1762 esac
1763
1764 # If --enable-target-optspace always use -Os instead of -O2 to build
1765 # the target libraries, similarly if it is not specified, use -Os
1766 # on selected platforms.
1767 ospace_frag=/dev/null
1768 case "${enable_target_optspace}:${target}" in
1769   yes:*)
1770     ospace_frag="config/mt-ospace"
1771     ;;
1772   :d30v-*)
1773     ospace_frag="config/mt-d30v"
1774     ;;
1775   :m32r-* | :d10v-* | :fr30-*)
1776     ospace_frag="config/mt-ospace"
1777     ;;
1778   no:* | :*)
1779     ;;
1780   *)
1781     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1782     ;;
1783 esac
1784
1785 # Default to using --with-stabs for certain targets.
1786 if test x${with_stabs} = x ; then
1787   case "${target}" in
1788   mips*-*-irix[[56]]*)
1789     ;;
1790   mips*-*-* | alpha*-*-osf*)
1791     with_stabs=yes;
1792     extra_host_args="${extra_host_args} --with-stabs"
1793     ;;
1794   esac
1795 fi
1796
1797 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1798 # them automatically.
1799 case "${host}" in
1800   hppa*64*-*-hpux11*)
1801     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1802     ;;
1803 esac
1804
1805 # Some systems (e.g., one of the i386-aix systems the gas testers are
1806 # using) don't handle "\$" correctly, so don't use it here.
1807 tooldir='${exec_prefix}'/${target_alias}
1808 build_tooldir=${tooldir}
1809
1810 # Create a .gdbinit file which runs the one in srcdir
1811 # and tells GDB to look there for source files.
1812
1813 if test -r ${srcdir}/.gdbinit ; then
1814   case ${srcdir} in
1815     .) ;;
1816     *) cat > ./.gdbinit <<EOF
1817 # ${NO_EDIT}
1818 dir ${srcdir}
1819 dir .
1820 source ${srcdir}/.gdbinit
1821 EOF
1822     ;;
1823   esac
1824 fi
1825
1826 # Make sure that the compiler is able to generate an executable.  If it
1827 # can't, we are probably in trouble.  We don't care whether we can run the
1828 # executable--we might be using a cross compiler--we only care whether it
1829 # can be created.  At this point the main configure script has set CC.
1830 we_are_ok=no
1831 echo "int main () { return 0; }" > conftest.c
1832 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1833 if test $? = 0 ; then
1834   if test -s conftest || test -s conftest.exe ; then
1835     we_are_ok=yes
1836   fi
1837 fi
1838 case $we_are_ok in
1839   no)
1840     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1841     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1842     rm -f conftest*
1843     exit 1
1844     ;;
1845 esac
1846 rm -f conftest*
1847
1848 # The Solaris /usr/ucb/cc compiler does not appear to work.
1849 case "${host}" in
1850   sparc-sun-solaris2*)
1851       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1852       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1853           could_use=
1854           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1855           if test -d /opt/cygnus/bin ; then
1856               if test "$could_use" = "" ; then
1857                   could_use="/opt/cygnus/bin"
1858               else
1859                   could_use="$could_use or /opt/cygnus/bin"
1860               fi
1861           fi
1862         if test "$could_use" = "" ; then
1863             echo "Warning: compilation may fail because you're using"
1864             echo "/usr/ucb/cc.  You should change your PATH or CC "
1865             echo "variable and rerun configure."
1866         else
1867             echo "Warning: compilation may fail because you're using"
1868             echo "/usr/ucb/cc, when you should use the C compiler from"
1869             echo "$could_use.  You should change your"
1870             echo "PATH or CC variable and rerun configure."
1871         fi
1872       fi
1873   ;;
1874 esac
1875
1876 case "${host}" in
1877   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1878   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1879   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1880 esac
1881
1882 # Record target_configdirs and the configure arguments for target and
1883 # build configuration in Makefile.
1884 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1885 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1886
1887 # Determine whether gdb needs tk/tcl or not.
1888 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1889 # and in that case we want gdb to be built without tk.  Ugh!
1890 # In fact I believe gdb is the *only* package directly dependent on tk,
1891 # so we should be able to put the 'maybe's in unconditionally and
1892 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1893 # 100% sure that that's safe though.
1894
1895 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1896 case "$enable_gdbtk" in
1897   no)
1898     GDB_TK="" ;;
1899   yes)
1900     GDB_TK="${gdb_tk}" ;;
1901   *)
1902     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1903     # distro.  Eventually someone will fix this and move Insight, nee
1904     # gdbtk to a separate directory.
1905     if test -d ${srcdir}/gdb/gdbtk ; then
1906       GDB_TK="${gdb_tk}"
1907     else
1908       GDB_TK=""
1909     fi
1910     ;;
1911 esac
1912 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1913 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1914
1915 # Strip out unwanted targets.
1916
1917 # While at that, we remove Makefiles if we were started for recursive
1918 # configuration, so that the top-level Makefile reconfigures them,
1919 # like we used to do when configure itself was recursive.
1920
1921 # Loop over modules.  $extrasub must be used with care, limiting as
1922 # much as possible the usage of range addresses.  That's because autoconf
1923 # splits the sed script to overcome limits in the number of commands,
1924 # and relying on carefully-timed sed passes may turn out to be very hard
1925 # to maintain later.  In this particular case, you just have to be careful
1926 # not to nest @if/@endif pairs, because configure will not warn you at all.
1927
1928 AC_ARG_ENABLE([bootstrap],
1929 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1930 enable_bootstrap=default)
1931
1932 # Issue errors and warnings for invalid/strange bootstrap combinations.
1933 case "$configdirs" in
1934   *gcc*) have_compiler=yes ;;
1935   *) have_compiler=no ;;
1936 esac
1937
1938 case "$have_compiler:$host:$target:$enable_bootstrap" in
1939   *:*:*:no) ;;
1940
1941   # Default behavior.  Enable bootstrap if we have a compiler
1942   # and we are in a native configuration.
1943   yes:$build:$build:default)
1944     enable_bootstrap=yes ;;
1945
1946   *:*:*:default)
1947     enable_bootstrap=no ;;
1948
1949   # We have a compiler and we are in a native configuration, bootstrap is ok
1950   yes:$build:$build:yes)
1951     ;;
1952
1953   # Other configurations, but we have a compiler.  Assume the user knows
1954   # what he's doing.
1955   yes:*:*:yes)
1956     AC_MSG_WARN([trying to bootstrap a cross compiler])
1957     ;;
1958
1959   # No compiler: if they passed --enable-bootstrap explicitly, fail
1960   no:*:*:yes)
1961     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1962
1963   # Fail if wrong command line
1964   *)
1965     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1966     ;;
1967 esac
1968
1969 # Adjust the toplevel makefile according to whether bootstrap was selected.
1970 case "$enable_bootstrap" in
1971   yes)
1972     bootstrap_suffix=bootstrap ;;
1973   no)
1974     bootstrap_suffix=no-bootstrap ;;
1975 esac
1976
1977 for module in ${build_configdirs} ; do
1978   if test -z "${no_recursion}" \
1979      && test -f ${build_subdir}/${module}/Makefile; then
1980     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1981     rm -f ${build_subdir}/${module}/Makefile
1982   fi
1983   extrasub="$extrasub
1984 /^@if build-$module\$/d
1985 /^@endif build-$module\$/d
1986 /^@if build-$module-$bootstrap_suffix\$/d
1987 /^@endif build-$module-$bootstrap_suffix\$/d"
1988 done
1989 for module in ${configdirs} ; do
1990   if test -z "${no_recursion}"; then
1991     for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
1992       if test -f ${file}; then
1993         echo 1>&2 "*** removing ${file} to force reconfigure"
1994         rm -f ${file}
1995       fi
1996     done
1997   fi
1998   extrasub="$extrasub
1999 /^@if $module\$/d
2000 /^@endif $module\$/d
2001 /^@if $module-$bootstrap_suffix\$/d
2002 /^@endif $module-$bootstrap_suffix\$/d"
2003 done
2004 for module in ${target_configdirs} ; do
2005   if test -z "${no_recursion}" \
2006      && test -f ${target_subdir}/${module}/Makefile; then
2007     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2008     rm -f ${target_subdir}/${module}/Makefile
2009   fi
2010   extrasub="$extrasub
2011 /^@if target-$module\$/d
2012 /^@endif target-$module\$/d
2013 /^@if target-$module-$bootstrap_suffix\$/d
2014 /^@endif target-$module-$bootstrap_suffix\$/d"
2015 done
2016
2017 extrasub="$extrasub
2018 /^@if /,/^@endif /d"
2019
2020 # Create the serialization dependencies.  This uses a temporary file.
2021
2022 AC_ARG_ENABLE([serial-configure],
2023 [  --enable-serial-[{host,target,build}-]configure
2024                           Force sequential configuration of
2025                           sub-packages for the host, target or build
2026                           machine, or all sub-packages])
2027
2028 case ${enable_serial_configure} in
2029   yes)
2030     enable_serial_build_configure=yes
2031     enable_serial_host_configure=yes
2032     enable_serial_target_configure=yes
2033     ;;
2034 esac
2035
2036 # These force 'configure's to be done one at a time, to avoid problems
2037 # with contention over a shared config.cache.
2038 rm -f serdep.tmp
2039 echo '# serdep.tmp' > serdep.tmp
2040 olditem=
2041 test "x${enable_serial_build_configure}" = xyes &&
2042 for item in ${build_configdirs} ; do
2043   case ${olditem} in
2044     "") ;;
2045     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2046   esac
2047   olditem=${item}
2048 done
2049 olditem=
2050 test "x${enable_serial_host_configure}" = xyes &&
2051 for item in ${configdirs} ; do
2052   case ${olditem} in
2053     "") ;;
2054     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2055   esac
2056   olditem=${item}
2057 done
2058 olditem=
2059 test "x${enable_serial_target_configure}" = xyes &&
2060 for item in ${target_configdirs} ; do
2061   case ${olditem} in
2062     "") ;;
2063     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2064   esac
2065   olditem=${item}
2066 done
2067 serialization_dependencies=serdep.tmp
2068 AC_SUBST_FILE(serialization_dependencies)
2069
2070 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
2071 # target and nonopt.  These are the ones we might not want to pass
2072 # down to subconfigures.  Also strip program-prefix, program-suffix,
2073 # and program-transform-name, so that we can pass down a consistent
2074 # program-transform-name.  If autoconf has put single quotes around
2075 # any of these arguments (because they contain shell metacharacters)
2076 # then this will fail; in practice this only happens for
2077 # --program-transform-name, so be sure to override --program-transform-name
2078 # at the end of the argument list.
2079 # These will be expanded by make, so quote '$'.
2080 cat <<\EOF_SED > conftestsed
2081 s/ --no[[^ ]]*/ /g
2082 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
2083 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
2084 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
2085 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
2086 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
2087 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
2088 s/ -cache-file[[= ]][[^ ]]*//g
2089 s/ -srcdir[[= ]][[^ ]]*//g
2090 s/ -host[[= ]][[^ ]]*//g
2091 s/ -build[[= ]][[^ ]]*//g
2092 s/ -target[[= ]][[^ ]]*//g
2093 s/ -program-prefix[[= ]][[^ ]]*//g
2094 s/ -program-suffix[[= ]][[^ ]]*//g
2095 s/ -program-transform-name[[= ]][[^ ]]*//g
2096 s/ [[^' -][^ ]*] / /
2097 s/^ *//;s/ *$//
2098 s,\$,$$,g
2099 EOF_SED
2100 sed -f conftestsed <<EOF_SED > conftestsed.out
2101  ${ac_configure_args}
2102 EOF_SED
2103 baseargs=`cat conftestsed.out`
2104 rm -f conftestsed conftestsed.out
2105
2106 # Add in --program-transform-name, after --program-prefix and
2107 # --program-suffix have been applied to it.  Autoconf has already
2108 # doubled dollar signs and backslashes in program_transform_name; we want
2109 # the backslashes un-doubled, and then the entire thing wrapped in single
2110 # quotes, because this will be expanded first by make and then by the shell.
2111 # Also, because we want to override the logic in subdir configure scripts to
2112 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2113 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2114 ${program_transform_name}
2115 EOF_SED
2116 gcc_transform_name=`cat conftestsed.out`
2117 rm -f conftestsed.out
2118 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2119
2120 # For the build-side libraries, we just need to pretend we're native,
2121 # and not use the same cache file.  Multilibs are neither needed nor
2122 # desired.
2123 build_configargs="--cache-file=../config.cache ${baseargs}"
2124
2125 # For host modules, accept cache file option, or specification as blank.
2126 case "${cache_file}" in
2127 "") # empty
2128   cache_file_option="" ;;
2129 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2130   cache_file_option="--cache-file=${cache_file}" ;;
2131 *) # relative path
2132   cache_file_option="--cache-file=../${cache_file}" ;;
2133 esac
2134
2135 # Host dirs don't like to share a cache file either, horribly enough.
2136 # This seems to be due to autoconf 2.5x stupidity.
2137 host_configargs="--cache-file=./config.cache ${extra_host_args} ${baseargs}"
2138
2139 target_configargs=${baseargs}
2140
2141 # Passing a --with-cross-host argument lets the target libraries know
2142 # whether they are being built with a cross-compiler or being built
2143 # native.  However, it would be better to use other mechanisms to make the
2144 # sorts of decisions they want to make on this basis.  Please consider
2145 # this option to be deprecated.  FIXME.
2146 if test x${is_cross_compiler} = xyes ; then
2147   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2148 fi
2149
2150 # Default to --enable-multilib.
2151 if test x${enable_multilib} = x ; then
2152   target_configargs="--enable-multilib ${target_configargs}"
2153 fi
2154
2155 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2156 # changed from the earlier setting of with_newlib.
2157 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2158   target_configargs="--with-newlib ${target_configargs}"
2159 fi
2160
2161 # Different target subdirs use different values of certain variables
2162 # (notably CXX).  Worse, multilibs use *lots* of different values.
2163 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2164 # it doesn't automatically accept command-line overrides of them.
2165 # This means it's not safe for target subdirs to share a cache file,
2166 # which is disgusting, but there you have it.  Hopefully this can be
2167 # fixed in future.  It's still worthwhile to use a cache file for each
2168 # directory.  I think.
2169
2170 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2171 # We need to pass --target, as newer autoconf's requires consistency
2172 # for target_alias and gcc doesn't manage it consistently.
2173 target_configargs="--cache-file=./config.cache ${target_configargs}"
2174
2175 FLAGS_FOR_TARGET=
2176 case " $target_configdirs " in
2177  *" newlib "*)
2178   case " $target_configargs " in
2179   *" --with-newlib "*)
2180    case "$target" in
2181    *-cygwin*)
2182      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' ;;
2183    esac
2184
2185    # If we're not building GCC, don't discard standard headers.
2186    if test -d ${srcdir}/gcc; then
2187      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2188
2189      if test "${build}" != "${host}"; then
2190        # On Canadian crosses, CC_FOR_TARGET will have already been set
2191        # by `configure', so we won't have an opportunity to add -Bgcc/
2192        # to it.  This is right: we don't want to search that directory
2193        # for binaries, but we want the header files in there, so add
2194        # them explicitly.
2195        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2196
2197        # Someone might think of using the pre-installed headers on
2198        # Canadian crosses, in case the installed compiler is not fully
2199        # compatible with the compiler being built.  In this case, it
2200        # would be better to flag an error than risking having
2201        # incompatible object files being constructed.  We can't
2202        # guarantee that an error will be flagged, but let's hope the
2203        # compiler will do it, when presented with incompatible header
2204        # files.
2205      fi
2206    fi
2207
2208    case "${target}-${is_cross_compiler}" in
2209    i[[3456789]]86-*-linux*-no)
2210       # Here host == target, so we don't need to build gcc,
2211       # so we don't want to discard standard headers.
2212       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2213       ;;
2214    *)
2215       # If we're building newlib, use its generic headers last, but search
2216       # for any libc-related directories first (so make it the last -B
2217       # switch).
2218       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2219       ;;
2220    esac
2221    ;;
2222   esac
2223   ;;
2224 esac
2225 case "$target" in
2226 *-mingw*)
2227   # Can't be handled as Cygwin above since Mingw does not use newlib.
2228   FLAGS_FOR_TARGET=$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' ;;
2229 esac
2230
2231 # Allow the user to override the flags for
2232 # our build compiler if desired.
2233 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2234
2235 # On Canadian crosses, we'll be searching the right directories for
2236 # the previously-installed cross compiler, so don't bother to add
2237 # flags for directories within the install tree of the compiler
2238 # being built; programs in there won't even run.
2239 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2240   # Search for pre-installed headers if nothing else fits.
2241   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2242 fi
2243
2244 if test "x${use_gnu_ld}" = x &&
2245    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2246   # Arrange for us to find uninstalled linker scripts.
2247   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2248 fi
2249
2250 # Search for other target-specific linker scripts and such.
2251 case "${target}" in
2252   m32c-*-* )
2253     if test -d ${srcdir}/libgloss/m32c; then
2254       # This is for crt0.o
2255       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2256       # This is for r8c.ld
2257       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2258       # This is for libnosys.a
2259       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2260     fi
2261     ;;
2262 esac
2263
2264 # Makefile fragments.
2265 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2266 do
2267   eval fragval=\$$frag
2268   if test $fragval != /dev/null; then
2269     eval $frag=${srcdir}/$fragval
2270   fi
2271 done
2272 AC_SUBST_FILE(host_makefile_frag)
2273 AC_SUBST_FILE(target_makefile_frag)
2274 AC_SUBST_FILE(alphaieee_frag)
2275 AC_SUBST_FILE(ospace_frag)
2276
2277 # Miscellanea: directories, flags, etc.
2278 AC_SUBST(RPATH_ENVVAR)
2279 AC_SUBST(tooldir)
2280 AC_SUBST(build_tooldir)
2281 AC_SUBST(CONFIGURE_GDB_TK)
2282 AC_SUBST(GDB_TK)
2283 AC_SUBST(INSTALL_GDB_TK)
2284
2285 # Build module lists & subconfigure args.
2286 AC_SUBST(build_configargs)
2287 AC_SUBST(build_configdirs)
2288
2289 # Host module lists & subconfigure args.
2290 AC_SUBST(host_configargs)
2291 AC_SUBST(configdirs)
2292
2293 # Target module lists & subconfigure args.
2294 AC_SUBST(target_configargs)
2295
2296
2297 # Build tools.
2298 AC_SUBST(CC_FOR_BUILD)
2299 AC_SUBST(config_shell)
2300
2301 # Generate default definitions for YACC, M4, LEX and other programs that run
2302 # on the build machine.  These are used if the Makefile can't locate these
2303 # programs in objdir.
2304 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2305
2306 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2307 case " $build_configdirs " in
2308   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2309   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2310 esac
2311
2312 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2313 case " $build_configdirs " in
2314   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2315 esac
2316
2317 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2318 case " $build_configdirs " in
2319   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2320 esac
2321
2322 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2323 case " $build_configdirs " in
2324   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2325   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2326 esac
2327
2328 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2329 case " $build_configdirs " in
2330   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2331 esac
2332
2333 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2334 case " $build_configdirs " in
2335   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2336   *)
2337 changequote(,)
2338     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2339     # higher, else we use the "missing" dummy.
2340     if ${MAKEINFO} --version \
2341        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2342       :
2343     else
2344       MAKEINFO="$MISSING makeinfo"
2345     fi
2346     ;;
2347 changequote([,])
2348 esac
2349
2350 # FIXME: expect and dejagnu may become build tools?
2351
2352 AC_CHECK_PROGS(EXPECT, expect, expect)
2353 case " $configdirs " in
2354   *" expect "*)
2355     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2356     ;;
2357 esac
2358
2359 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2360 case " $configdirs " in
2361   *" dejagnu "*)
2362     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2363     ;;
2364 esac
2365
2366
2367 # Host tools.
2368 NCN_STRICT_CHECK_TOOLS(AR, ar)
2369 NCN_STRICT_CHECK_TOOLS(AS, as)
2370 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2371 NCN_STRICT_CHECK_TOOLS(LD, ld)
2372 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2373 NCN_STRICT_CHECK_TOOLS(NM, nm)
2374 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2375 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2376 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2377 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2378 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2379 AC_SUBST(CC)
2380 AC_SUBST(CXX)
2381 AC_SUBST(CFLAGS)
2382 AC_SUBST(CFLAGS_FOR_BUILD)
2383 AC_SUBST(CXXFLAGS)
2384
2385 # Target tools.
2386 AC_ARG_WITH([build-time-tools],
2387   [  --with-build-time-tools=path
2388                           use given path to find target tools during the build],
2389   [case x"$withval" in
2390      x/*) ;;
2391      *)
2392        with_build_time_tools=
2393        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2394        ;;
2395    esac],
2396   [with_build_time_tools=])
2397
2398 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2399 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2400 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2401 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2402 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2403
2404 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2405 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2406 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2407 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2408 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2409 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2410 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2411 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2412 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2413 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2414
2415 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2416
2417 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2418 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2419 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2420 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2421                 [gcc/g++ -B$$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],
2422                 c++)
2423 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2424                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2425                 c++)
2426 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2427 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2428 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2429                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2430 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2431                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2432 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2433 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2434 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2435 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2436 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2437 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2438 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2439
2440 AC_SUBST(FLAGS_FOR_TARGET)
2441 AC_SUBST(RAW_CXX_FOR_TARGET)
2442
2443 # Certain tools may need extra flags.
2444 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2445 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2446 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2447
2448 # When building target libraries, except in a Canadian cross, we use
2449 # the same toolchain as the compiler we just built.
2450 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2451 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2452 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2453 if test $host = $build; then
2454   case " $configdirs " in
2455     *" gcc "*)
2456       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2457       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2458       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2459       ;;
2460   esac
2461 fi
2462
2463 AC_SUBST(COMPILER_AS_FOR_TARGET)
2464 AC_SUBST(COMPILER_LD_FOR_TARGET)
2465 AC_SUBST(COMPILER_NM_FOR_TARGET)
2466
2467 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2468 AC_ARG_ENABLE(maintainer-mode,
2469 [  --enable-maintainer-mode enable make rules and dependencies not useful
2470                           (and sometimes confusing) to the casual installer],
2471       USE_MAINTAINER_MODE=$enableval,
2472       USE_MAINTAINER_MODE=no)
2473 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2474 AC_SUBST(MAINTAINER_MODE_TRUE)
2475 AC_SUBST(MAINTAINER_MODE_FALSE)
2476 if test "$USE_MAINTAINER_MODE" = yes; then
2477   MAINTAINER_MODE_TRUE=
2478   MAINTAINER_MODE_FALSE='#'
2479 else
2480   MAINTAINER_MODE_TRUE='#'
2481   MAINTAINER_MODE_FALSE=
2482 fi
2483 MAINT=$MAINTAINER_MODE_TRUE
2484 AC_SUBST(MAINT)dnl
2485
2486 # ---------------------
2487 # GCC bootstrap support
2488 # ---------------------
2489
2490 # Stage specific cflags for build.
2491 stage1_cflags="-g"
2492 case $build in
2493   vax-*-*)
2494     case ${GCC} in
2495       yes) stage1_cflags="-g -Wa,-J" ;;
2496       *) stage1_cflags="-g -J" ;;
2497     esac ;;
2498 esac
2499
2500 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
2501 if test "$GCC" = yes; then
2502   saved_CFLAGS="$CFLAGS"
2503
2504   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
2505   CFLAGS="$CFLAGS -fkeep-inline-functions"
2506   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
2507   AC_TRY_COMPILE(,,
2508     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
2509     [AC_MSG_RESULT([no])])
2510
2511   CFLAGS="$saved_CFLAGS"
2512 fi
2513
2514 AC_SUBST(stage1_cflags)
2515
2516 # Enable --enable-checking in stage1 of the compiler.
2517 AC_ARG_ENABLE(stage1-checking,
2518 [  --enable-stage1-checking[=all]   choose additional checking for stage1
2519                           of the compiler.],
2520 [stage1_checking=--enable-checking=${enable_stage1_checking}],
2521 [if test "x$enable_checking" = xno; then
2522   stage1_checking=--enable-checking
2523 else
2524   stage1_checking=--enable-checking${enable_checking+=}$enable_checking
2525 fi])
2526 AC_SUBST(stage1_checking)
2527
2528 # Enable -Werror in bootstrap stage2 and later.
2529 AC_ARG_ENABLE(werror,
2530 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2531 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
2532   enable_werror=yes
2533 else
2534   enable_werror=no
2535 fi])
2536 case ${enable_werror} in
2537   yes) stage2_werror_flag="--enable-werror-always" ;;
2538   *) stage2_werror_flag="" ;;
2539 esac
2540 AC_SUBST(stage2_werror_flag)
2541
2542 # Flags needed to enable html installing and building
2543 AC_ARG_WITH(datarootdir,
2544 [  --with-datarootdir   Use datarootdir as the data root directory.],
2545 [datarootdir="\${prefix}/${withval}"],
2546 [datarootdir="\${prefix}/share"])
2547
2548 AC_ARG_WITH(docdir,
2549 [  --with-docdir        Install documentation in this directory.],
2550 [docdir="\${prefix}/${withval}"],
2551 [docdir="\${datarootdir}/doc"])
2552
2553 AC_ARG_WITH(htmldir,
2554 [  --with-htmldir       Install html in this directory.],
2555 [htmldir="\${prefix}/${withval}"],
2556 [htmldir="\${docdir}"])
2557
2558 AC_SUBST(datarootdir)
2559 AC_SUBST(docdir)
2560 AC_SUBST(htmldir)
2561
2562 AC_OUTPUT(Makefile)