configure.ac

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
   2 #   2001, 2002, 2003, 2004, 2005, 2006, 2007 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(2.59)
  25
  26 # Find the build, host, and target systems.
  27 ACX_NONCANONICAL_BUILD
  28 ACX_NONCANONICAL_HOST
  29 ACX_NONCANONICAL_TARGET
  30
  31 dnl Autoconf 2.5x and later will set a default program prefix if
  32 dnl --target was used, even if it was the same as --host.  Disable
  33 dnl that behavior.  This must be done before AC_CANONICAL_SYSTEM
  34 dnl to take effect.
  35 test "$host_noncanonical" = "$target_noncanonical" &&
  36   test "$program_prefix$program_suffix$program_transform_name" = \
  37     NONENONEs,x,x, &&
  38   program_transform_name=s,y,y,
  39
  40 AC_CANONICAL_SYSTEM
  41 AC_ARG_PROGRAM
  42
  43 m4_pattern_allow([^AS_FOR_TARGET$])dnl
  44
  45 # Get 'install' or 'install-sh' and its variants.
  46 AC_PROG_INSTALL
  47 ACX_PROG_LN
  48 AC_PROG_LN_S
  49
  50 ### we might need to use some other shell than /bin/sh for running subshells
  51 ### If we are on Windows, search for the shell.  This will permit people
  52 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  53 ### without also having to set CONFIG_SHELL.  This code will work when
  54 ### using bash, which sets OSTYPE.
  55 case "${OSTYPE}" in
  56 *win32*)
  57   if test x${CONFIG_SHELL} = x ; then
  58     if test ! -f /bin/sh ; then
  59       if test x${SHELL} != x && test -f ${SHELL} ; then
  60         CONFIG_SHELL=${SHELL}
  61         export CONFIG_SHELL
  62       else
  63         for prog in sh sh.exe bash bash.exe; do
  64           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  65           for dir in $PATH; do
  66             test -z "$dir" && dir=.
  67             if test -f $dir/$prog; then
  68               CONFIG_SHELL=$dir/$prog
  69               export CONFIG_SHELL
  70               break
  71             fi
  72           done
  73           IFS="$save_ifs"
  74           test -n "${CONFIG_SHELL}" && break
  75         done
  76       fi
  77     fi
  78   fi
  79   ;;
  80 esac
  81
  82 config_shell=${CONFIG_SHELL-/bin/sh}
  83
  84 progname=$0
  85 # if PWD already has a value, it is probably wrong.
  86 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  87
  88 # Export original configure arguments for use by sub-configures.
  89 # Quote arguments with shell meta charatcers.
  90 TOPLEVEL_CONFIGURE_ARGUMENTS=
  91 set -- "$progname" "$@"
  92 for ac_arg; do
  93   case "$ac_arg" in
  94   *" "*|*"      "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*)
  95     ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
  96     # if the argument is of the form -foo=baz, quote the baz part only
  97     ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
  98   *) ;;
  99   esac
 100   # Add the quoted argument to the list.
 101   TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
 102 done
 103 # Remove the initial space we just introduced and, as these will be
 104 # expanded by make, quote '$'.
 105 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
 106 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
 107
 108 moveifchange=${srcdir}/move-if-change
 109
 110 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
 111
 112 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
 113 # a relative path.
 114 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
 115   INSTALL="${srcpwd}/install-sh -c"
 116 fi
 117
 118 # Set srcdir to "." if that's what it is.
 119 # This is important for multilib support.
 120 pwd=`${PWDCMD-pwd}`
 121 if test "${pwd}" = "${srcpwd}" ; then
 122   srcdir=.
 123 fi
 124
 125 topsrcdir=$srcpwd
 126
 127 extra_host_args=
 128
 129 ### To add a new directory to the tree, first choose whether it is a target
 130 ### or a host dependent tool.  Then put it into the appropriate list
 131 ### (library or tools, host or target), doing a dependency sort.
 132
 133 # Subdirs will be configured in the order listed in build_configdirs,
 134 # configdirs, or target_configdirs; see the serialization section below.
 135
 136 # Dependency sorting is only needed when *configuration* must be done in
 137 # a particular order.  In all cases a dependency should be specified in
 138 # the Makefile, whether or not it's implicitly specified here.
 139
 140 # Double entries in build_configdirs, configdirs, or target_configdirs may
 141 # cause circular dependencies and break everything horribly.
 142
 143 # these library is used by various programs built for the build
 144 # environment
 145 #
 146 build_libs="build-libiberty"
 147
 148 # these tools are built for the build environment
 149 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 150
 151 # these libraries are used by various programs built for the host environment
 152 #
 153 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber gmp mpfr"
 154
 155 # these tools are built for the host environment
 156 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 157 # know that we are building the simulator.
 158 # binutils, gas and ld appear in that order because it makes sense to run
 159 # "make check" in that particular order.
 160 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"
 161
 162 # libgcj represents the runtime libraries only used by gcj.
 163 libgcj="target-libffi \
 164         target-zlib \
 165         target-qthreads \
 166         target-libjava"
 167
 168 # these libraries are built for the target environment, and are built after
 169 # the host libraries and the host tools (which may be a cross compiler)
 170 #
 171 target_libraries="target-libgcc \
 172                 target-libiberty \
 173                 target-libgloss \
 174                 target-newlib \
 175                 target-libstdc++-v3 \
 176                 target-libmudflap \
 177                 target-libssp \
 178                 target-libgfortran \
 179                 target-boehm-gc \
 180                 ${libgcj} \
 181                 target-libobjc \
 182                 target-libada \
 183                 target-libgomp"
 184
 185 # these tools are built using the target libraries, and are intended to
 186 # run only in the target environment
 187 #
 188 # note: any program that *uses* libraries that are in the "target_libraries"
 189 # list belongs in this list.  those programs are also very likely
 190 # candidates for the "native_only" list which follows
 191 #
 192 target_tools="target-examples target-groff target-gperf target-rda"
 193
 194 ################################################################################
 195
 196 ## All tools belong in one of the four categories, and are assigned above
 197 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 198 ## is important because configure will choke if they ever get through.
 199 ## ${configdirs} is directories we build using the host tools.
 200 ## ${target_configdirs} is directories we build using the target tools.
 201 configdirs=`echo ${host_libs} ${host_tools}`
 202 target_configdirs=`echo ${target_libraries} ${target_tools}`
 203 build_configdirs=`echo ${build_libs} ${build_tools}`
 204
 205 ################################################################################
 206
 207 srcname="gnu development package"
 208
 209 # This gets set non-empty for some net releases of packages.
 210 appdirs=""
 211
 212 # Define is_cross_compiler to save on calls to 'test'.
 213 is_cross_compiler=
 214 if test x"${host}" = x"${target}" ; then
 215   is_cross_compiler=no
 216 else
 217   is_cross_compiler=yes
 218 fi
 219
 220 # Find the build and target subdir names.
 221 GCC_TOPLEV_SUBDIRS
 222
 223 # Skipdirs are removed silently.
 224 skipdirs=
 225 # Noconfigdirs are removed loudly.
 226 noconfigdirs=""
 227
 228 use_gnu_ld=
 229 # Make sure we don't let GNU ld be added if we didn't want it.
 230 if test x$with_gnu_ld = xno ; then
 231   use_gnu_ld=no
 232   noconfigdirs="$noconfigdirs ld"
 233 fi
 234
 235 use_gnu_as=
 236 # Make sure we don't let GNU as be added if we didn't want it.
 237 if test x$with_gnu_as = xno ; then
 238   use_gnu_as=no
 239   noconfigdirs="$noconfigdirs gas"
 240 fi
 241
 242 # some tools are so dependent upon X11 that if we're not building with X,
 243 # it's not even worth trying to configure, much less build, that tool.
 244
 245 case ${with_x} in
 246   yes | "") ;; # the default value for this tree is that X11 is available
 247   no)
 248     skipdirs="${skipdirs} tk itcl libgui"
 249     # We won't be able to build gdbtk without X.
 250     enable_gdbtk=no
 251     ;;
 252   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 253 esac
 254
 255 # Some tools are only suitable for building in a "native" situation.
 256 # Remove these if host!=target.
 257 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"
 258
 259 # Similarly, some are only suitable for cross toolchains.
 260 # Remove these if host=target.
 261 cross_only="target-libgloss target-newlib target-opcodes"
 262
 263 case $is_cross_compiler in
 264   no) skipdirs="${skipdirs} ${cross_only}" ;;
 265   yes) skipdirs="${skipdirs} ${native_only}" ;;
 266 esac
 267
 268 # If both --with-headers and --with-libs are specified, default to
 269 # --without-newlib.
 270 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 271    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 272   if test x"${with_newlib}" = x ; then
 273     with_newlib=no
 274   fi
 275 fi
 276
 277 # Recognize --with-newlib/--without-newlib.
 278 case ${with_newlib} in
 279   no) skipdirs="${skipdirs} target-newlib" ;;
 280   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 281 esac
 282
 283 # Configure extra directories which are host specific
 284
 285 case "${host}" in
 286   *-cygwin*)
 287     configdirs="$configdirs libtermcap" ;;
 288 esac
 289
 290 # A target can indicate whether a language isn't supported for some reason.
 291 # Only spaces may be used in this macro; not newlines or tabs.
 292 unsupported_languages=
 293
 294 # Remove more programs from consideration, based on the host or
 295 # target this usually means that a port of the program doesn't
 296 # exist yet.
 297
 298 case "${host}" in
 299   hppa*64*-*-*)
 300     noconfigdirs="$noconfigdirs byacc"
 301     ;;
 302   i[[3456789]]86-*-vsta)
 303     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 304     ;;
 305   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 306     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 307     ;;
 308   x86_64-*-mingw*)
 309     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
 310     ;;
 311   i[[3456789]]86-*-mingw32*)
 312     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 313     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
 314     ;;
 315   i[[3456789]]86-*-beos*)
 316     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 317     ;;
 318   *-*-cygwin*)
 319     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 320     ;;
 321   *-*-netbsd*)
 322     noconfigdirs="$noconfigdirs rcs"
 323     ;;
 324   ppc*-*-pe)
 325     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 326     ;;
 327   powerpc-*-beos*)
 328     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 329     ;;
 330 esac
 331
 332
 333 AC_ARG_ENABLE(libada,
 334 [  --enable-libada        Builds libada directory],
 335 ENABLE_LIBADA=$enableval,
 336 ENABLE_LIBADA=yes)
 337 if test "${ENABLE_LIBADA}" != "yes" ; then
 338   noconfigdirs="$noconfigdirs gnattools"
 339 fi
 340
 341 AC_ARG_ENABLE(libssp,
 342 [  --enable-libssp        Builds libssp directory],
 343 ENABLE_LIBSSP=$enableval,
 344 ENABLE_LIBSSP=yes)
 345
 346 # Save it here so that, even in case of --enable-libgcj, if the Java
 347 # front-end isn't enabled, we still get libgcj disabled.
 348 libgcj_saved=$libgcj
 349 case $enable_libgcj in
 350 yes)
 351   # If we reset it here, it won't get added to noconfigdirs in the
 352   # target-specific build rules, so it will be forcibly enabled
 353   # (unless the Java language itself isn't enabled).
 354   libgcj=
 355   ;;
 356 no)
 357   # Make sure we get it printed in the list of not supported target libs.
 358   noconfigdirs="$noconfigdirs ${libgcj}"
 359   ;;
 360 esac
 361
 362
 363 # Disable libmudflap on some systems.
 364 if test x$enable_libmudflap = x ; then
 365     case "${target}" in
 366     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 367         # Enable libmudflap by default in GNU and friends.
 368         ;;
 369     *-*-freebsd*)
 370         # Enable libmudflap by default in FreeBSD.
 371         ;;
 372     *)
 373         # Disable it by default everywhere else.
 374         noconfigdirs="$noconfigdirs target-libmudflap"
 375         ;;
 376     esac
 377 fi
 378
 379 # Disable libgomp on non POSIX hosted systems.
 380 if test x$enable_libgomp = x ; then
 381     # Enable libgomp by default on hosted POSIX systems.
 382     case "${target}" in
 383     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 384         ;;
 385     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 386         ;;
 387     *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
 388         ;;
 389     *-*-darwin* | *-*-aix*)
 390         ;;
 391     *)
 392         noconfigdirs="$noconfigdirs target-libgomp"
 393         ;;
 394     esac
 395 fi
 396
 397
 398 case "${target}" in
 399   *-*-chorusos)
 400     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 401     ;;
 402   powerpc-*-darwin* | i[[3456789]]86-*-darwin*)
 403     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 404     noconfigdirs="$noconfigdirs sim target-rda"
 405     ;;
 406   *-*-darwin*)
 407     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 408     noconfigdirs="$noconfigdirs sim target-rda"
 409     noconfigdirs="$noconfigdirs ${libgcj}"
 410     ;;
 411   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 412     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 413     ;;
 414   *-*-freebsd*)
 415     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 416     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 417         && test -f /usr/local/include/gmp.h; then
 418       with_gmp=/usr/local
 419     fi
 420
 421     # Skip some stuff that's unsupported on some FreeBSD configurations.
 422     case "${target}" in
 423       i*86-*-*) ;;
 424       alpha*-*-*) ;;
 425       *)
 426         noconfigdirs="$noconfigdirs ${libgcj}"
 427         ;;
 428     esac
 429     ;;
 430   *-*-kaos*)
 431     # Remove unsupported stuff on all kaOS configurations.
 432     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 433     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 434     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 435     noconfigdirs="$noconfigdirs target-libgloss"
 436     ;;
 437   *-*-netbsd*)
 438     # Skip some stuff on all NetBSD configurations.
 439     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 440
 441     # Skip some stuff that's unsupported on some NetBSD configurations.
 442     case "${target}" in
 443       i*86-*-netbsdelf*) ;;
 444       arm*-*-netbsdelf*) ;;
 445       *)
 446         noconfigdirs="$noconfigdirs ${libgcj}"
 447         ;;
 448     esac
 449     ;;
 450   *-*-netware*)
 451     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 452     ;;
 453   *-*-rtems*)
 454     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 455     ;;
 456     # The tpf target doesn't support gdb yet.
 457   *-*-tpf*)
 458     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 459     ;;
 460   *-*-uclinux*)
 461     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 462     ;;
 463   *-*-vxworks*)
 464     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 465     ;;
 466   alpha*-dec-osf*)
 467     # ld works, but does not support shared libraries.
 468     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 469     # gas doesn't generate exception information.
 470     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 471     ;;
 472   alpha*-*-*vms*)
 473     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 474     ;;
 475   alpha*-*-linux*)
 476     # newlib is not 64 bit ready
 477     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 478     ;;
 479   alpha*-*-*)
 480     # newlib is not 64 bit ready
 481     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 482     ;;
 483   am33_2.0-*-linux*)
 484     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 485     ;;
 486   sh-*-linux*)
 487     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 488     ;;
 489   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 490     noconfigdirs="$noconfigdirs ${libgcj}"
 491     noconfigdirs="$noconfigdirs target-examples"
 492     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 493     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 494     noconfigdirs="$noconfigdirs expect dejagnu"
 495     # the C++ libraries don't build on top of CE's C libraries
 496     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 497     noconfigdirs="$noconfigdirs target-newlib"
 498     case "${host}" in
 499       *-*-cygwin*) ;; # keep gdb and readline
 500       *) noconfigdirs="$noconfigdirs gdb readline"
 501          ;;
 502     esac
 503     ;;
 504   arc-*-*)
 505     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 506     ;;
 507   arm-semi-aof )
 508     ;;
 509   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 510     noconfigdirs="$noconfigdirs ${libgcj}"
 511     ;;
 512   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 513     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 514     ;;
 515   arm*-*-linux-gnueabi)
 516     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 517     noconfigdirs="$noconfigdirs target-libjava target-libobjc"
 518     ;;
 519   arm*-*-symbianelf*)
 520     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 521     ;;
 522   arm-*-pe*)
 523     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 524     ;;
 525   thumb-*-coff)
 526     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 527     ;;
 528   thumb-*-elf)
 529     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 530     ;;
 531   thumb-*-pe)
 532     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 533     ;;
 534   arm-*-riscix*)
 535     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 536     ;;
 537   avr-*-*)
 538     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 539     ;;
 540   bfin-*-*)
 541     noconfigdirs="$noconfigdirs gdb"
 542     if test x${is_cross_compiler} != xno ; then
 543       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 544     fi
 545     ;;
 546   c4x-*-* | tic4x-*-*)
 547     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 548     ;;
 549   c54x*-*-* | tic54x-*-*)
 550     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 551     ;;
 552   cris-*-* | crisv32-*-*)
 553     unsupported_languages="$unsupported_languages java"
 554     case "${target}" in
 555       *-*-aout)
 556         unsupported_languages="$unsupported_languages fortran"
 557         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 558       *-*-elf)
 559         unsupported_languages="$unsupported_languages fortran"
 560         noconfigdirs="$noconfigdirs target-boehm-gc";;
 561       *-*-linux*)
 562         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 563       *)
 564         unsupported_languages="$unsupported_languages fortran"
 565         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 566     esac
 567     ;;
 568   crx-*-*)
 569     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 570     ;;
 571   d10v-*-*)
 572     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 573     ;;
 574   d30v-*-*)
 575     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 576     ;;
 577   fr30-*-elf*)
 578     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 579     ;;
 580   frv-*-*)
 581     noconfigdirs="$noconfigdirs ${libgcj}"
 582     ;;
 583   h8300*-*-*)
 584     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 585     ;;
 586   h8500-*-*)
 587     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 588     ;;
 589   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 590     ;;
 591   hppa*64*-*-linux* | parisc*64*-*-linux*)
 592     # In this case, it's because the hppa64-linux target is for
 593     # the kernel only at this point and has no libc, and thus no
 594     # headers, crt*.o, etc., all of which are needed by these.
 595     noconfigdirs="$noconfigdirs target-zlib"
 596     ;;
 597   parisc*-*-linux* | hppa*-*-linux*)
 598     ;;
 599   hppa*-*-*elf* | \
 600   hppa*-*-lites* | \
 601   hppa*-*-openbsd* | \
 602   hppa*64*-*-*)
 603     noconfigdirs="$noconfigdirs ${libgcj}"
 604     ;;
 605   hppa*-hp-hpux11*)
 606     noconfigdirs="$noconfigdirs ld shellutils"
 607     ;;
 608   hppa*-*-*)
 609     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 610     # build on HP-UX 10.20.
 611     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 612     ;;
 613   i960-*-*)
 614     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 615     ;;
 616   ia64*-*-elf*)
 617     # No gdb support yet.
 618     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 619     ;;
 620   ia64*-**-hpux*)
 621     # No gdb or ld support yet.
 622     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 623     ;;
 624   i370-*-opened*)
 625     ;;
 626   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 627     noconfigdirs="$noconfigdirs ${libgcj}"
 628     ;;
 629   i[[3456789]]86-*-linux*)
 630     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 631     # not build java stuff by default.
 632     case "${target}" in
 633       *-*-*libc1*)
 634         noconfigdirs="$noconfigdirs ${libgcj}";;
 635     esac
 636
 637     # This section makes it possible to build newlib natively on linux.
 638     # If we are using a cross compiler then don't configure newlib.
 639     if test x${is_cross_compiler} != xno ; then
 640       noconfigdirs="$noconfigdirs target-newlib"
 641     fi
 642     noconfigdirs="$noconfigdirs target-libgloss"
 643     # If we are not using a cross compiler, do configure newlib.
 644     # Note however, that newlib will only be configured in this situation
 645     # if the --with-newlib option has been given, because otherwise
 646     # 'target-newlib' will appear in skipdirs.
 647     ;;
 648   i[[3456789]]86-*-mingw32*)
 649     target_configdirs="$target_configdirs target-winsup"
 650     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 651     ;;
 652   x86_64-*-mingw*)
 653     target_configdirs="$target_configdirs target-winsup"
 654     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 655     ;;
 656   *-*-cygwin*)
 657     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 658     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 659     # always build newlib if winsup directory is present.
 660     if test -d "$srcdir/winsup/cygwin"; then
 661       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 662     elif test -d "$srcdir/newlib"; then
 663       echo "Warning: winsup/cygwin is missing so newlib can't be built."
 664     fi
 665     ;;
 666   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 667   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 668     ;;
 669   i[[3456789]]86-*-pe)
 670     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 671     ;;
 672   i[[3456789]]86-*-sco3.2v5*)
 673     # The linker does not yet know about weak symbols in COFF,
 674     # and is not configured to handle mixed ELF and COFF.
 675     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 676     ;;
 677   i[[3456789]]86-*-sco*)
 678     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 679     ;;
 680   i[[3456789]]86-*-solaris2*)
 681     noconfigdirs="$noconfigdirs target-libgloss"
 682     ;;
 683   i[[3456789]]86-*-sysv4*)
 684     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 685     ;;
 686   i[[3456789]]86-*-beos*)
 687     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 688     ;;
 689   i[[3456789]]86-*-rdos*)
 690     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 691     ;;
 692   m32r-*-*)
 693     noconfigdirs="$noconfigdirs ${libgcj}"
 694     ;;
 695   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 696     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 697     ;;
 698   m68k-*-elf*)
 699     noconfigdirs="$noconfigdirs ${libgcj}"
 700     ;;
 701   m68k-*-coff*)
 702     noconfigdirs="$noconfigdirs ${libgcj}"
 703     ;;
 704   mcore-*-pe*)
 705   # The EPOC C++ environment does not support exceptions or rtti,
 706   # and so building libstdc++-v3 tends not to always work.
 707     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 708     ;;
 709   mmix-*-*)
 710     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 711     unsupported_languages="$unsupported_languages fortran java"
 712     ;;
 713   mn10200-*-*)
 714     noconfigdirs="$noconfigdirs ${libgcj}"
 715     ;;
 716   mn10300-*-*)
 717     noconfigdirs="$noconfigdirs ${libgcj}"
 718     ;;
 719   mt-*-*)
 720     noconfigdirs="$noconfigdirs sim"
 721     ;;
 722   powerpc-*-aix*)
 723     # copied from rs6000-*-* entry
 724     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 725     ;;
 726   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 727     target_configdirs="$target_configdirs target-winsup"
 728     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 729     # always build newlib.
 730     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 731     ;;
 732     # This is temporary until we can link against shared libraries
 733   powerpcle-*-solaris*)
 734     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 735     ;;
 736   powerpc-*-beos*)
 737     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 738     ;;
 739   powerpc-*-eabi)
 740     noconfigdirs="$noconfigdirs ${libgcj}"
 741     ;;
 742   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 743     ;;
 744   rs6000-*-lynxos*)
 745     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 746     ;;
 747   rs6000-*-aix*)
 748     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 749     ;;
 750   rs6000-*-*)
 751     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 752     ;;
 753   m68k-apollo-*)
 754     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 755     ;;
 756   mips*-*-irix5*)
 757     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 758     ;;
 759   mips*-*-irix6*)
 760     # Linking libjava exceeds command-line length limits on at least
 761     # IRIX 6.2, but not on IRIX 6.5.
 762     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 763     # <oldham@codesourcery.com>
 764     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 765     ;;
 766   mips*-*-bsd*)
 767     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 768     ;;
 769   mips64*-*-linux*)
 770     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 771     ;;
 772   mips*-*-linux*)
 773     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 774     ;;
 775   mips*-*-*)
 776     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 777     ;;
 778   romp-*-*)
 779     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 780     ;;
 781   sh-*-* | sh64-*-*)
 782     case "${host}" in
 783       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 784       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 785       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 786       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 787     esac
 788     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 789     ;;
 790   sparc-*-elf*)
 791     noconfigdirs="$noconfigdirs ${libgcj}"
 792     ;;
 793   sparc64-*-elf*)
 794     noconfigdirs="$noconfigdirs ${libgcj}"
 795     ;;
 796   sparclite-*-*)
 797     noconfigdirs="$noconfigdirs ${libgcj}"
 798     ;;
 799   sparc-*-sunos4*)
 800     noconfigdirs="$noconfigdirs ${libgcj}"
 801     if test x${is_cross_compiler} != xno ; then
 802            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 803     else
 804            use_gnu_ld=no
 805     fi
 806     ;;
 807   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 808     noconfigdirs="$noconfigdirs ${libgcj}"
 809     ;;
 810   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 811     ;;
 812   spu-*-*)
 813     skipdirs="target-libssp"
 814     ;;
 815   v810-*-*)
 816     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 817     ;;
 818   v850-*-*)
 819     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 820     ;;
 821   v850e-*-*)
 822     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 823     ;;
 824   v850ea-*-*)
 825     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 826     ;;
 827   vax-*-vms)
 828     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 829     ;;
 830   vax-*-*)
 831     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 832     ;;
 833   xtensa-*-*)
 834     noconfigdirs="$noconfigdirs ${libgcj}"
 835     ;;
 836   ip2k-*-*)
 837     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 838     ;;
 839   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 840     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 841     ;;
 842   *-*-lynxos*)
 843     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 844     ;;
 845   *-*-*)
 846     noconfigdirs="$noconfigdirs ${libgcj}"
 847     ;;
 848 esac
 849
 850 # If we aren't building newlib, then don't build libgloss, since libgloss
 851 # depends upon some newlib header files.
 852 case "${noconfigdirs}" in
 853   *target-libgloss*) ;;
 854   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 855 esac
 856
 857 # Work in distributions that contain no compiler tools, like Autoconf.
 858 tentative_cc=""
 859 host_makefile_frag=/dev/null
 860 if test -d ${srcdir}/config ; then
 861 case "${host}" in
 862   m68k-hp-hpux*)
 863     # Avoid "too much defining" errors from HPUX compiler.
 864     tentative_cc="cc -Wp,-H256000"
 865     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 866     # If it's HP/UX ar, this should be harmless.
 867     RANLIB="ar ts"
 868     ;;
 869   m68k-apollo-sysv*)
 870     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 871     ;;
 872   m68k-apollo-bsd*)
 873     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 874     # chokes on bfd, the compiler won't let you assign integers to enums, and
 875     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 876     # the apollo compiler" (the preferred version of GCC could be called cc,
 877     # or whatever), but I'm not sure leaving CC as cc is any better...
 878     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 879     # Used to have BISON=yacc.
 880     tentative_cc=gcc
 881     ;;
 882   m88k-dg-dgux*)
 883     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 884     ;;
 885   m88k-harris-cxux*)
 886     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 887     tentative_cc="cc -Xa"
 888     host_makefile_frag="config/mh-cxux"
 889     ;;
 890   m88k-motorola-sysv*)
 891     ;;
 892   mips*-dec-ultrix*)
 893     tentative_cc="cc -Wf,-XNg1000"
 894     host_makefile_frag="config/mh-decstation"
 895     ;;
 896   mips*-nec-sysv4*)
 897     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 898     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 899     host_makefile_frag="config/mh-necv4"
 900     ;;
 901   mips*-sgi-irix4*)
 902     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 903     # environment.  Also bump switch table size so that cp-parse will
 904     # compile.  Bump string length limit so linker builds.
 905     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 906     ;;
 907   mips*-*-sysv4*)
 908     host_makefile_frag="config/mh-sysv4"
 909     ;;
 910   mips*-*-sysv*)
 911     # This is for a MIPS running RISC/os 4.52C.
 912
 913     # This is needed for GDB, but needs to be in the top-level make because
 914     # if a library is compiled with the bsd headers and gets linked with the
 915     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 916     # a different size).
 917     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 918     # known except to select the sysv environment.  Could we use /proc instead?
 919     # These "sysv environments" and "bsd environments" often end up being a pain.
 920     #
 921     # This is not part of CFLAGS because perhaps not all C compilers have this
 922     # option.
 923     tentative_cc="cc -systype sysv"
 924     ;;
 925   i370-ibm-opened*)
 926     tentative_cc="c89"
 927     ;;
 928   i[[3456789]]86-*-sysv5*)
 929     host_makefile_frag="config/mh-sysv5"
 930     ;;
 931   i[[3456789]]86-*-dgux*)
 932     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 933     host_makefile_frag="config/mh-dgux386"
 934     ;;
 935   i[[3456789]]86-ncr-sysv4.3*)
 936     # The MetaWare compiler will generate a copyright message unless you
 937     # turn it off by adding the -Hnocopyr flag.
 938     tentative_cc="cc -Hnocopyr"
 939     ;;
 940   i[[3456789]]86-ncr-sysv4*)
 941     # for an NCR 3000 (i486/SVR4) system.
 942     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 943     # This compiler not only emits obnoxious copyright messages every time
 944     # you run it, but it chokes and dies on a whole bunch of GNU source
 945     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 946     tentative_cc="/usr/ccs/ATT/cc"
 947     host_makefile_frag="config/mh-ncr3000"
 948     ;;
 949   i[[3456789]]86-*-sco3.2v5*)
 950     ;;
 951   i[[3456789]]86-*-sco*)
 952     # The native C compiler botches some simple uses of const.  Unfortunately,
 953     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 954     tentative_cc="cc -Dconst="
 955     host_makefile_frag="config/mh-sco"
 956     ;;
 957   i[[3456789]]86-*-udk*)
 958     host_makefile_frag="config/mh-sysv5"
 959     ;;
 960   i[[3456789]]86-*-solaris2*)
 961     host_makefile_frag="config/mh-sysv4"
 962     ;;
 963   i[[3456789]]86-*-msdosdjgpp*)
 964     host_makefile_frag="config/mh-djgpp"
 965     ;;
 966   *-cygwin*)
 967     host_makefile_frag="config/mh-cygwin"
 968     ;;
 969   *-mingw32*)
 970     ;;
 971   *-mingw64*)
 972     ;;
 973   *-interix*)
 974     host_makefile_frag="config/mh-interix"
 975     ;;
 976   vax-*-ultrix2*)
 977     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 978     tentative_cc=gcc
 979     ;;
 980   *-*-solaris2*)
 981     host_makefile_frag="config/mh-solaris"
 982     ;;
 983   m68k-sun-sunos*)
 984     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 985     # without overflowing the jump tables (-J says to use a 32 bit table)
 986     tentative_cc="cc -J"
 987     ;;
 988   *-hp-hpux*)
 989     tentative_cc="cc -Wp,-H256000"
 990     ;;
 991   *-*-hiux*)
 992     tentative_cc="cc -Wp,-H256000"
 993     ;;
 994   rs6000-*-lynxos*)
 995     # /bin/cc is less than useful for our purposes.  Always use GCC
 996     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 997     host_makefile_frag="config/mh-lynxrs6k"
 998     ;;
 999   powerpc-*-darwin*)
1000     host_makefile_frag="config/mh-ppc-darwin"
1001     ;;
1002   powerpc-*-aix*)
1003     host_makefile_frag="config/mh-ppc-aix"
1004     ;;
1005   rs6000-*-aix*)
1006     host_makefile_frag="config/mh-ppc-aix"
1007     ;;
1008   *-*-lynxos*)
1009     # /bin/cc is less than useful for our purposes.  Always use GCC
1010     tentative_cc="/bin/gcc"
1011     ;;
1012   *-*-sysv4*)
1013     host_makefile_frag="config/mh-sysv4"
1014     ;;
1015   # This is placed last to prevent interfering with the cases above.
1016   i[[3456789]]86-*-*)
1017     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
1018     host_makefile_frag="config/mh-x86omitfp"
1019     ;;
1020 esac
1021 fi
1022
1023 # If we aren't going to be using gcc, see if we can extract a definition
1024 # of CC from the fragment.
1025 # Actually, use the 'pre-extracted' version above.
1026 if test -z "${CC}" && test "${build}" = "${host}" ; then
1027   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1028   found=
1029   for dir in $PATH; do
1030     test -z "$dir" && dir=.
1031     if test -f $dir/gcc; then
1032       found=yes
1033       break
1034     fi
1035   done
1036   IFS="$save_ifs"
1037   if test -z "${found}" && test -n "${tentative_cc}" ; then
1038     CC=$tentative_cc
1039   fi
1040 fi
1041
1042 if test "${build}" != "${host}" ; then
1043   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1044 else
1045   CC_FOR_BUILD="\$(CC)"
1046 fi
1047
1048 AC_PROG_CC
1049 AC_PROG_CXX
1050
1051 # We must set the default linker to the linker used by gcc for the correct
1052 # operation of libtool.  If LD is not defined and we are using gcc, try to
1053 # set the LD default to the ld used by gcc.
1054 if test -z "$LD"; then
1055   if test "$GCC" = yes; then
1056     case $build in
1057     *-*-mingw*)
1058       gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1059     *)
1060       gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1061     esac
1062     case $gcc_prog_ld in
1063     # Accept absolute paths.
1064     [[\\/]* | [A-Za-z]:[\\/]*)]
1065       LD="$gcc_prog_ld" ;;
1066     esac
1067   fi
1068 fi
1069
1070 ACX_PROG_GNAT
1071 ACX_PROG_CMP_IGNORE_INITIAL
1072
1073 # Check for GMP and MPFR
1074 gmplibs="-lmpfr -lgmp"
1075 gmpinc=
1076 have_gmp=no
1077
1078 # Specify a location for mpfr
1079 # check for this first so it ends up on the link line before gmp.
1080 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    This option has been REMOVED],
1081   AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1082 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH]))
1083
1084 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify prefix directory for installed MPFR package
1085                           Equivalent to --with-mpfr-include=PATH/include
1086                           plus --with-mpfr-lib=PATH/lib])
1087 AC_ARG_WITH(mpfr_include, [  --with-mpfr-include=PATH
1088                           Specify directory for installed MPFR include files])
1089 AC_ARG_WITH(mpfr_lib, [  --with-mpfr-lib=PATH    Specify the directory for the installed MPFR library])
1090
1091 if test "x$with_mpfr" != x; then
1092   gmplibs="-L$with_mpfr/lib $gmplibs"
1093   gmpinc="-I$with_mpfr/include"
1094 fi
1095 if test "x$with_mpfr_include" != x; then
1096   gmpinc="-I$with_mpfr_include"
1097 fi
1098 if test "x$with_mpfr_lib" != x; then
1099   gmplibs="-L$with_mpfr_lib $gmplibs"
1100 fi
1101 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1102   gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/.libs -L$$r/$(HOST_SUBDIR)/mpfr/_libs '"$gmplibs"
1103   gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1104   # Do not test the mpfr version.  Assume that it is sufficient, since
1105   # it is in the source tree, and the library has not been built yet
1106   # but it would be included on the link line in the version check below
1107   # hence making the test fail.
1108   have_gmp=yes
1109 fi
1110
1111 # Specify a location for gmp
1112 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     This option has been REMOVED],
1113   AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1114 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH]))
1115
1116 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify prefix directory for the installed GMP package
1117                           Equivalent to --with-gmp-include=PATH/include
1118                           plus --with-gmp-lib=PATH/lib])
1119 AC_ARG_WITH(gmp_include, [  --with-gmp-include=PATH Specify directory for installed GMP include files])
1120 AC_ARG_WITH(gmp_lib, [  --with-gmp-lib=PATH     Specify the directory for the installed GMP library])
1121
1122
1123 if test "x$with_gmp" != x; then
1124   gmplibs="-L$with_gmp/lib $gmplibs"
1125   gmpinc="-I$with_gmp/include $gmpinc"
1126 fi
1127 if test "x$with_gmp_include" != x; then
1128   gmpinc="-I$with_gmp_include $gmpinc"
1129 fi
1130 if test "x$with_gmp_lib" != x; then
1131   gmplibs="-L$with_gmp_lib $gmplibs"
1132 fi
1133 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1134   gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/.libs -L$$r/$(HOST_SUBDIR)/gmp/_libs '"$gmplibs"
1135   gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1136   # Do not test the gmp version.  Assume that it is sufficient, since
1137   # it is in the source tree, and the library has not been built yet
1138   # but it would be included on the link line in the version check below
1139   # hence making the test fail.
1140   have_gmp=yes
1141 fi
1142
1143 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1144   have_gmp=yes
1145   saved_CFLAGS="$CFLAGS"
1146   CFLAGS="$CFLAGS $gmpinc"
1147   # Check GMP actually works
1148   AC_MSG_CHECKING([for correct version of gmp.h])
1149   AC_TRY_COMPILE([#include "gmp.h"],[
1150   #if __GNU_MP_VERSION < 4 || (__GNU_MP_VERSION == 4 && __GNU_MP_VERSION_MINOR < 1)
1151   choke me
1152   #endif
1153   ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1154
1155   if test x"$have_gmp" = xyes; then
1156     saved_LIBS="$LIBS"
1157     LIBS="$LIBS $gmplibs"
1158     dnl MPFR 2.2.0 is acceptable but buggy, MPFR 2.2.1 is better.
1159     AC_MSG_CHECKING([for correct version of mpfr.h])
1160     AC_TRY_LINK([#include <gmp.h>
1161     #include <mpfr.h>],[
1162     #if MPFR_VERSION < MPFR_VERSION_NUM(2,2,0)
1163     choke me
1164     #endif
1165     mpfr_t n; mpfr_init(n);
1166     mpfr_t x; mpfr_init(x);
1167     int t;
1168     mpfr_atan2 (n, n, x, GMP_RNDN);
1169     mpfr_erfc (n, x, GMP_RNDN);
1170     mpfr_subnormalize (x, t, GMP_RNDN);
1171     ], [AC_TRY_LINK([#include <gmp.h>
1172     #include <mpfr.h>],[
1173     #if MPFR_VERSION < MPFR_VERSION_NUM(2,2,1)
1174     choke me
1175     #endif
1176     mpfr_t n; mpfr_init(n);
1177     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1178      [AC_MSG_RESULT([no]); have_gmp=no])
1179       LIBS="$saved_LIBS"
1180   fi
1181   CFLAGS="$saved_CFLAGS"
1182
1183   if test x$have_gmp != xyes; then
1184     AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.2.1+.
1185 Try the --with-gmp and/or --with-mpfr options to specify their locations.
1186 Copies of these libraries' source code can be found at their respective
1187 hosting sites as well as at ftp://gcc.gnu.org/pub/gcc/infrastructure/.
1188 See also http://gcc.gnu.org/install/prerequisites.html for additional info.
1189 If you obtained GMP and/or MPFR from a vendor distribution package, make
1190 sure that you have installed both the libraries and the header files.
1191 They may be located in separate packages.])
1192   fi
1193 fi
1194
1195 # Flags needed for both GMP and/or MPFR
1196 AC_SUBST(gmplibs)
1197 AC_SUBST(gmpinc)
1198
1199 # By default, C is the only stage 1 language.
1200 stage1_languages=,c,
1201
1202 # Figure out what language subdirectories are present.
1203 # Look if the user specified --enable-languages="..."; if not, use
1204 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1205 # go away some day.
1206 # NB:  embedded tabs in this IF block -- do not untabify
1207 if test -d ${srcdir}/gcc; then
1208   if test x"${enable_languages+set}" != xset; then
1209     if test x"${LANGUAGES+set}" = xset; then
1210       enable_languages="${LANGUAGES}"
1211         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1212     else
1213       enable_languages=all
1214     fi
1215   else
1216     if test x"${enable_languages}" = x ||
1217        test x"${enable_languages}" = xyes;
1218        then
1219       echo configure.in: --enable-languages needs at least one language argument 1>&2
1220       exit 1
1221     fi
1222   fi
1223   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1224
1225   # 'f95' is the old name for the 'fortran' language. We issue a warning
1226   # and make the substitution.
1227   case ,${enable_languages}, in
1228     *,f95,*)
1229       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1230       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1231       ;;
1232   esac
1233
1234   # First scan to see if an enabled language requires some other language.
1235   # We assume that a given config-lang.in will list all the language
1236   # front ends it requires, even if some are required indirectly.
1237   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1238     case ${lang_frag} in
1239       ..) ;;
1240       # The odd quoting in the next line works around
1241       # an apparent bug in bash 1.12 on linux.
1242       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1243       *)
1244         # From the config-lang.in, get $language, $lang_requires
1245         language=
1246         lang_requires=
1247         . ${lang_frag}
1248         for other in ${lang_requires} ; do
1249           case ,${enable_languages}, in
1250             *,$other,*) ;;
1251             *,all,*) ;;
1252             *,$language,*)
1253               echo " \`$other' language required by \`$language'; enabling" 1>&2
1254               enable_languages="${enable_languages},${other}"
1255               ;;
1256           esac
1257         done
1258         ;;
1259     esac
1260   done
1261
1262   new_enable_languages=,c,
1263   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1264   potential_languages=,c,
1265
1266   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1267     case ${lang_frag} in
1268       ..) ;;
1269       # The odd quoting in the next line works around
1270       # an apparent bug in bash 1.12 on linux.
1271       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1272       *)
1273         # From the config-lang.in, get $language, $target_libs,
1274         # $lang_dirs, $boot_language, and $build_by_default
1275         language=
1276         target_libs=
1277         lang_dirs=
1278         subdir_requires=
1279         boot_language=no
1280         build_by_default=yes
1281         . ${lang_frag}
1282         if test x${language} = x; then
1283           echo "${lang_frag} doesn't set \$language." 1>&2
1284           exit 1
1285         fi
1286
1287         case ,${enable_languages}, in
1288           *,${language},*)
1289             # Language was explicitly selected; include it.
1290             add_this_lang=yes
1291             ;;
1292           *,all,*)
1293             # 'all' was selected, select it if it is a default language
1294             add_this_lang=${build_by_default}
1295             ;;
1296           *)
1297             add_this_lang=no
1298             ;;
1299         esac
1300
1301         # Disable languages that need other directories if these aren't available.
1302         for i in $subdir_requires; do
1303           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1304           case ,${enable_languages}, in
1305             *,${language},*)
1306               # Specifically requested language; tell them.
1307               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1308               ;;
1309             *)
1310               # Silently disable.
1311               add_this_lang=unsupported
1312               ;;
1313           esac
1314         done
1315
1316         # Disable Ada if no preexisting GNAT is available.
1317         case ,${enable_languages},:${language}:${have_gnat} in
1318           *,${language},*:ada:no)
1319             # Specifically requested language; tell them.
1320             AC_MSG_ERROR([GNAT is required to build $language])
1321             ;;
1322           *:ada:no)
1323             # Silently disable.
1324             add_this_lang=unsupported
1325             ;;
1326         esac
1327
1328         # Disable a language that is unsupported by the target.
1329         case " $unsupported_languages " in
1330           *" $language "*)
1331             add_this_lang=unsupported
1332             ;;
1333         esac
1334
1335         case $add_this_lang in
1336           unsupported)
1337             # Remove language-dependent dirs.
1338             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1339             ;;
1340           no)
1341             # Remove language-dependent dirs; still show language as supported.
1342             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1343             potential_languages="${potential_languages}${language},"
1344             ;;
1345           yes)
1346             new_enable_languages="${new_enable_languages}${language},"
1347             potential_languages="${potential_languages}${language},"
1348             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1349             case ${boot_language} in
1350               yes)
1351                 # Add to (comma-separated) list of stage 1 languages.
1352                 stage1_languages="${stage1_languages}${language},"
1353                 ;;
1354             esac
1355             ;;
1356         esac
1357         ;;
1358     esac
1359   done
1360
1361   AC_ARG_ENABLE(stage1-languages,
1362 [  --enable-stage1-languages[=all]   choose additional languages to build during
1363                           stage1.  Mostly useful for compiler development.],
1364   [case ,${enable_stage1_languages}, in
1365     ,no,|,,)
1366       # Set it to something that will have no effect in the loop below
1367       enable_stage1_languages=c ;;
1368     ,yes,)
1369       enable_stage1_languages=`echo $new_enable_languages | \
1370         sed -e "s/^,//" -e "s/,$//" ` ;;
1371     *,all,*)
1372       enable_stage1_languages=`echo ,$enable_stage1_languages, | \
1373         sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
1374   esac
1375
1376   # Add "good" languages from enable_stage1_languages to stage1_languages,
1377   # while "bad" languages go in missing_languages.  Leave no duplicates.
1378   for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
1379     case $potential_languages in
1380       *,$i,*)
1381         case $stage1_languages in
1382           *,$i,*) ;;
1383           *) stage1_languages="$stage1_languages$i," ;;
1384         esac ;;
1385       *)
1386         case $missing_languages in
1387           *,$i,*) ;;
1388           *) missing_languages="$missing_languages$i," ;;
1389         esac ;;
1390      esac
1391   done])
1392
1393   # Remove leading/trailing commas that were added for simplicity
1394   potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
1395   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1396   stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
1397   new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
1398
1399   if test "x$missing_languages" != x; then
1400     AC_MSG_ERROR([
1401 The following requested languages could not be built: ${missing_languages}
1402 Supported languages are: ${potential_languages}])
1403   fi
1404   if test "x$new_enable_languages" != "x$enable_languages"; then
1405     echo The following languages will be built: ${new_enable_languages}
1406     enable_languages="$new_enable_languages"
1407   fi
1408
1409   AC_SUBST(stage1_languages)
1410   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1411 fi
1412
1413 # Handle --disable-<component> generically.
1414 for dir in $configdirs $build_configdirs $target_configdirs ; do
1415   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1416   if eval test x\${enable_${dirname}} "=" xno ; then
1417     noconfigdirs="$noconfigdirs $dir"
1418   fi
1419 done
1420
1421 # Check for Boehm's garbage collector
1422 AC_ARG_ENABLE(objc-gc,
1423 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
1424                           the GNU Objective-C runtime.],
1425 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1426   *,objc,*:*:yes:*target-boehm-gc*)
1427     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1428     ;;
1429 esac])
1430
1431 # Make sure we only build Boehm's garbage collector if required.
1432 case ,${enable_languages},:${enable_objc_gc} in
1433   *,objc,*:yes)
1434     # Keep target-boehm-gc if requested for Objective-C.
1435     ;;
1436   *)
1437     # Otherwise remove target-boehm-gc depending on target-libjava.
1438     if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1439       noconfigdirs="$noconfigdirs target-boehm-gc"
1440     fi
1441     ;;
1442 esac
1443
1444 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1445 # $build_configdirs and $target_configdirs.
1446 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1447
1448 notsupp=""
1449 for dir in . $skipdirs $noconfigdirs ; do
1450   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1451   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1452     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1453     if test -r $srcdir/$dirname/configure ; then
1454       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1455         true
1456       else
1457         notsupp="$notsupp $dir"
1458       fi
1459     fi
1460   fi
1461   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1462     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1463     if test -r $srcdir/$dirname/configure ; then
1464       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1465         true
1466       else
1467         notsupp="$notsupp $dir"
1468       fi
1469     fi
1470   fi
1471   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1472     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1473     if test -r $srcdir/$dirname/configure ; then
1474       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1475         true
1476       else
1477         notsupp="$notsupp $dir"
1478       fi
1479     fi
1480   fi
1481 done
1482
1483 # Sometimes the tools are distributed with libiberty but with no other
1484 # libraries.  In that case, we don't want to build target-libiberty.
1485 # Don't let libgcc imply libiberty either.
1486 if test -n "${target_configdirs}" ; then
1487   libgcc=
1488   others=
1489   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1490     if test "$i" = "libgcc"; then
1491       libgcc=target-libgcc
1492     elif test "$i" != "libiberty" ; then
1493       if test -r $srcdir/$i/configure ; then
1494         others=yes;
1495         break;
1496       fi
1497     fi
1498   done
1499   if test -z "${others}" ; then
1500     target_configdirs=$libgcc
1501   fi
1502 fi
1503
1504 # Quietly strip out all directories which aren't configurable in this tree.
1505 # This relies on all configurable subdirectories being autoconfiscated, which
1506 # is now the case.
1507 build_configdirs_all="$build_configdirs"
1508 build_configdirs=
1509 for i in ${build_configdirs_all} ; do
1510   j=`echo $i | sed -e s/build-//g`
1511   if test -f ${srcdir}/$j/configure ; then
1512     build_configdirs="${build_configdirs} $i"
1513   fi
1514 done
1515
1516 configdirs_all="$configdirs"
1517 configdirs=
1518 for i in ${configdirs_all} ; do
1519   if test -f ${srcdir}/$i/configure ; then
1520     configdirs="${configdirs} $i"
1521   fi
1522 done
1523
1524 target_configdirs_all="$target_configdirs"
1525 target_configdirs=
1526 for i in ${target_configdirs_all} ; do
1527   j=`echo $i | sed -e s/target-//g`
1528   if test -f ${srcdir}/$j/configure ; then
1529     target_configdirs="${target_configdirs} $i"
1530   fi
1531 done
1532
1533 # Produce a warning message for the subdirs we can't configure.
1534 # This isn't especially interesting in the Cygnus tree, but in the individual
1535 # FSF releases, it's important to let people know when their machine isn't
1536 # supported by the one or two programs in a package.
1537
1538 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1539   # If $appdirs is non-empty, at least one of those directories must still
1540   # be configured, or we error out.  (E.g., if the gas release supports a
1541   # specified target in some subdirs but not the gas subdir, we shouldn't
1542   # pretend that all is well.)
1543   if test -n "$appdirs" ; then
1544     for dir in $appdirs ; do
1545       if test -r $dir/Makefile.in ; then
1546         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1547           appdirs=""
1548           break
1549         fi
1550         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1551           appdirs=""
1552           break
1553         fi
1554       fi
1555     done
1556     if test -n "$appdirs" ; then
1557       echo "*** This configuration is not supported by this package." 1>&2
1558       exit 1
1559     fi
1560   fi
1561   # Okay, some application will build, or we don't care to check.  Still
1562   # notify of subdirs not getting built.
1563   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1564   echo "    ${notsupp}" 1>&2
1565   echo "    (Any other directories should still work fine.)" 1>&2
1566 fi
1567
1568 case "$host" in
1569   *msdosdjgpp*)
1570     enable_gdbtk=no ;;
1571 esac
1572
1573 # To find our prefix, in gcc_cv_tool_prefix.
1574 ACX_TOOL_DIRS
1575
1576 copy_dirs=
1577
1578 AC_ARG_WITH([build-sysroot],
1579   [  --with-build-sysroot=sysroot
1580                           use sysroot as the system root during the build],
1581   [if test x"$withval" != x ; then
1582      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1583    fi],
1584   [SYSROOT_CFLAGS_FOR_TARGET=])
1585 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1586
1587 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1588 # the named directory are copied to $(tooldir)/sys-include.
1589 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1590   if test x${is_cross_compiler} = xno ; then
1591     echo 1>&2 '***' --with-headers is only supported when cross compiling
1592     exit 1
1593   fi
1594   if test x"${with_headers}" != xyes ; then
1595     x=${gcc_cv_tool_prefix}
1596     copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
1597   fi
1598 fi
1599
1600 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1601 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1602 # are permitted.
1603 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1604   if test x${is_cross_compiler} = xno ; then
1605     echo 1>&2 '***' --with-libs is only supported when cross compiling
1606     exit 1
1607   fi
1608   if test x"${with_libs}" != xyes ; then
1609     # Copy the libraries in reverse order, so that files in the first named
1610     # library override files in subsequent libraries.
1611     x=${gcc_cv_tool_prefix}
1612     for l in ${with_libs}; do
1613       copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
1614     done
1615   fi
1616 fi
1617
1618 # Set with_gnu_as and with_gnu_ld as appropriate.
1619 #
1620 # This is done by determining whether or not the appropriate directory
1621 # is available, and by checking whether or not specific configurations
1622 # have requested that this magic not happen.
1623 #
1624 # The command line options always override the explicit settings in
1625 # configure.in, and the settings in configure.in override this magic.
1626 #
1627 # If the default for a toolchain is to use GNU as and ld, and you don't
1628 # want to do that, then you should use the --without-gnu-as and
1629 # --without-gnu-ld options for the configure script.
1630
1631 if test x${use_gnu_as} = x &&
1632    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1633   with_gnu_as=yes
1634   extra_host_args="$extra_host_args --with-gnu-as"
1635 fi
1636
1637 if test x${use_gnu_ld} = x &&
1638    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1639   with_gnu_ld=yes
1640   extra_host_args="$extra_host_args --with-gnu-ld"
1641 fi
1642
1643 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1644 # can detect this case.
1645
1646 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1647   with_newlib=yes
1648   extra_host_args="$extra_host_args --with-newlib"
1649 fi
1650
1651 # Handle ${copy_dirs}
1652 set fnord ${copy_dirs}
1653 shift
1654 while test $# != 0 ; do
1655   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1656     :
1657   else
1658     echo Copying $1 to $2
1659
1660     # Use the install script to create the directory and all required
1661     # parent directories.
1662     if test -d $2 ; then
1663       :
1664     else
1665       echo >config.temp
1666       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1667     fi
1668
1669     # Copy the directory, assuming we have tar.
1670     # FIXME: Should we use B in the second tar?  Not all systems support it.
1671     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1672
1673     # It is the responsibility of the user to correctly adjust all
1674     # symlinks.  If somebody can figure out how to handle them correctly
1675     # here, feel free to add the code.
1676
1677     echo $1 > $2/COPIED
1678   fi
1679   shift; shift
1680 done
1681
1682 # Determine a target-dependent exec_prefix that the installed
1683 # gcc will search in.  Keep this list sorted by triplet, with
1684 # the *-*-osname triplets last.
1685 md_exec_prefix=
1686 case "${target}" in
1687   alpha*-*-*vms*)
1688     md_exec_prefix=/gnu/lib/gcc-lib
1689     ;;
1690   i[34567]86-pc-msdosdjgpp*)
1691     md_exec_prefix=/dev/env/DJDIR/bin
1692     ;;
1693   i[34567]86-*-sco3.2v5*)
1694     if test $with_gnu_as = yes; then
1695       md_exec_prefix=/usr/gnu/bin
1696     else
1697       md_exec_prefix=/usr/ccs/bin/elf
1698     fi
1699     ;;
1700
1701   mn10300-*-* | \
1702   powerpc-*-chorusos* | \
1703   powerpc*-*-eabi* | \
1704   powerpc*-*-sysv* | \
1705   powerpc*-*-kaos* | \
1706   s390x-ibm-tpf*)
1707     md_exec_prefix=/usr/ccs/bin
1708     ;;
1709   sparc64-*-elf*)
1710     ;;
1711   v850*-*-*)
1712     md_exec_prefix=/usr/ccs/bin
1713     ;;
1714   xtensa-*-elf*)
1715     ;;
1716
1717   *-*-beos* | \
1718   *-*-elf* | \
1719   *-*-hpux* | \
1720   *-*-netware* | \
1721   *-*-nto-qnx* | \
1722   *-*-rtems* | \
1723   *-*-solaris2* | \
1724   *-*-sysv[45]* | \
1725   *-*-vxworks* | \
1726   *-wrs-windiss)
1727     md_exec_prefix=/usr/ccs/bin
1728     ;;
1729 esac
1730
1731 extra_arflags_for_target=
1732 extra_nmflags_for_target=
1733 extra_ranlibflags_for_target=
1734 target_makefile_frag=/dev/null
1735 case "${target}" in
1736   mep*-*-*)
1737     target_makefile_frag="config/mt-mep"
1738     ;;
1739   spu-*-*)
1740     target_makefile_frag="config/mt-spu"
1741     ;;
1742   *-*-netware*)
1743     target_makefile_frag="config/mt-netware"
1744     ;;
1745   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1746     target_makefile_frag="config/mt-gnu"
1747     ;;
1748   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1749     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1750     # commands to handle both 32-bit and 64-bit objects.  These flags are
1751     # harmless if we're using GNU nm or ar.
1752     extra_arflags_for_target=" -X32_64"
1753     extra_nmflags_for_target=" -B -X32_64"
1754     ;;
1755   *-*-darwin*)
1756     # ranlib from Darwin requires the -c flag to look at common symbols.
1757     extra_ranlibflags_for_target=" -c"
1758     ;;
1759   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1760     target_makefile_frag="config/mt-wince"
1761     ;;
1762 esac
1763
1764 alphaieee_frag=/dev/null
1765 case $target in
1766   alpha*-*-*)
1767     # This just makes sure to use the -mieee option to build target libs.
1768     # This should probably be set individually by each library.
1769     alphaieee_frag="config/mt-alphaieee"
1770     ;;
1771 esac
1772
1773 # If --enable-target-optspace always use -Os instead of -O2 to build
1774 # the target libraries, similarly if it is not specified, use -Os
1775 # on selected platforms.
1776 ospace_frag=/dev/null
1777 case "${enable_target_optspace}:${target}" in
1778   yes:*)
1779     ospace_frag="config/mt-ospace"
1780     ;;
1781   :d30v-*)
1782     ospace_frag="config/mt-d30v"
1783     ;;
1784   :m32r-* | :d10v-* | :fr30-*)
1785     ospace_frag="config/mt-ospace"
1786     ;;
1787   no:* | :*)
1788     ;;
1789   *)
1790     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1791     ;;
1792 esac
1793
1794 # Default to using --with-stabs for certain targets.
1795 if test x${with_stabs} = x ; then
1796   case "${target}" in
1797   mips*-*-irix[[56]]*)
1798     ;;
1799   mips*-*-* | alpha*-*-osf*)
1800     with_stabs=yes;
1801     extra_host_args="${extra_host_args} --with-stabs"
1802     ;;
1803   esac
1804 fi
1805
1806 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1807 # them automatically.
1808 case "${host}" in
1809   hppa*64*-*-hpux11*)
1810     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1811     ;;
1812 esac
1813
1814 # Some systems (e.g., one of the i386-aix systems the gas testers are
1815 # using) don't handle "\$" correctly, so don't use it here.
1816 tooldir='${exec_prefix}'/${target_noncanonical}
1817 build_tooldir=${tooldir}
1818
1819 # Create a .gdbinit file which runs the one in srcdir
1820 # and tells GDB to look there for source files.
1821
1822 if test -r ${srcdir}/.gdbinit ; then
1823   case ${srcdir} in
1824     .) ;;
1825     *) cat > ./.gdbinit <<EOF
1826 # ${NO_EDIT}
1827 dir ${srcdir}
1828 dir .
1829 source ${srcdir}/.gdbinit
1830 EOF
1831     ;;
1832   esac
1833 fi
1834
1835 # Make sure that the compiler is able to generate an executable.  If it
1836 # can't, we are probably in trouble.  We don't care whether we can run the
1837 # executable--we might be using a cross compiler--we only care whether it
1838 # can be created.  At this point the main configure script has set CC.
1839 we_are_ok=no
1840 echo "int main () { return 0; }" > conftest.c
1841 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1842 if test $? = 0 ; then
1843   if test -s conftest || test -s conftest.exe ; then
1844     we_are_ok=yes
1845   fi
1846 fi
1847 case $we_are_ok in
1848   no)
1849     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1850     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1851     rm -f conftest*
1852     exit 1
1853     ;;
1854 esac
1855 rm -f conftest*
1856
1857 # The Solaris /usr/ucb/cc compiler does not appear to work.
1858 case "${host}" in
1859   sparc-sun-solaris2*)
1860       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1861       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1862           could_use=
1863           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1864           if test -d /opt/cygnus/bin ; then
1865               if test "$could_use" = "" ; then
1866                   could_use="/opt/cygnus/bin"
1867               else
1868                   could_use="$could_use or /opt/cygnus/bin"
1869               fi
1870           fi
1871         if test "$could_use" = "" ; then
1872             echo "Warning: compilation may fail because you're using"
1873             echo "/usr/ucb/cc.  You should change your PATH or CC "
1874             echo "variable and rerun configure."
1875         else
1876             echo "Warning: compilation may fail because you're using"
1877             echo "/usr/ucb/cc, when you should use the C compiler from"
1878             echo "$could_use.  You should change your"
1879             echo "PATH or CC variable and rerun configure."
1880         fi
1881       fi
1882   ;;
1883 esac
1884
1885 case "${host}" in
1886   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1887   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1888   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1889 esac
1890
1891 # Record target_configdirs and the configure arguments for target and
1892 # build configuration in Makefile.
1893 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1894 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1895
1896 # Determine whether gdb needs tk/tcl or not.
1897 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1898 # and in that case we want gdb to be built without tk.  Ugh!
1899 # In fact I believe gdb is the *only* package directly dependent on tk,
1900 # so we should be able to put the 'maybe's in unconditionally and
1901 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1902 # 100% sure that that's safe though.
1903
1904 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1905 case "$enable_gdbtk" in
1906   no)
1907     GDB_TK="" ;;
1908   yes)
1909     GDB_TK="${gdb_tk}" ;;
1910   *)
1911     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1912     # distro.  Eventually someone will fix this and move Insight, nee
1913     # gdbtk to a separate directory.
1914     if test -d ${srcdir}/gdb/gdbtk ; then
1915       GDB_TK="${gdb_tk}"
1916     else
1917       GDB_TK=""
1918     fi
1919     ;;
1920 esac
1921 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1922 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1923
1924 # Strip out unwanted targets.
1925
1926 # While at that, we remove Makefiles if we were started for recursive
1927 # configuration, so that the top-level Makefile reconfigures them,
1928 # like we used to do when configure itself was recursive.
1929
1930 # Loop over modules.  $extrasub must be used with care, limiting as
1931 # much as possible the usage of range addresses.  That's because autoconf
1932 # splits the sed script to overcome limits in the number of commands,
1933 # and relying on carefully-timed sed passes may turn out to be very hard
1934 # to maintain later.  In this particular case, you just have to be careful
1935 # not to nest @if/@endif pairs, because configure will not warn you at all.
1936
1937 AC_ARG_ENABLE([bootstrap],
1938 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1939 enable_bootstrap=default)
1940
1941 # Issue errors and warnings for invalid/strange bootstrap combinations.
1942 case "$configdirs" in
1943   *gcc*) have_compiler=yes ;;
1944   *) have_compiler=no ;;
1945 esac
1946
1947 case "$have_compiler:$host:$target:$enable_bootstrap" in
1948   *:*:*:no) ;;
1949
1950   # Default behavior.  Enable bootstrap if we have a compiler
1951   # and we are in a native configuration.
1952   yes:$build:$build:default)
1953     enable_bootstrap=yes ;;
1954
1955   *:*:*:default)
1956     enable_bootstrap=no ;;
1957
1958   # We have a compiler and we are in a native configuration, bootstrap is ok
1959   yes:$build:$build:yes)
1960     ;;
1961
1962   # Other configurations, but we have a compiler.  Assume the user knows
1963   # what he's doing.
1964   yes:*:*:yes)
1965     AC_MSG_WARN([trying to bootstrap a cross compiler])
1966     ;;
1967
1968   # No compiler: if they passed --enable-bootstrap explicitly, fail
1969   no:*:*:yes)
1970     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1971
1972   # Fail if wrong command line
1973   *)
1974     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1975     ;;
1976 esac
1977
1978 # Adjust the toplevel makefile according to whether bootstrap was selected.
1979 case "$enable_bootstrap" in
1980   yes)
1981     bootstrap_suffix=bootstrap ;;
1982   no)
1983     bootstrap_suffix=no-bootstrap ;;
1984 esac
1985
1986 for module in ${build_configdirs} ; do
1987   if test -z "${no_recursion}" \
1988      && test -f ${build_subdir}/${module}/Makefile; then
1989     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1990     rm -f ${build_subdir}/${module}/Makefile
1991   fi
1992   extrasub="$extrasub
1993 /^@if build-$module\$/d
1994 /^@endif build-$module\$/d
1995 /^@if build-$module-$bootstrap_suffix\$/d
1996 /^@endif build-$module-$bootstrap_suffix\$/d"
1997 done
1998 for module in ${configdirs} ; do
1999   if test -z "${no_recursion}"; then
2000     for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2001       if test -f ${file}; then
2002         echo 1>&2 "*** removing ${file} to force reconfigure"
2003         rm -f ${file}
2004       fi
2005     done
2006   fi
2007   extrasub="$extrasub
2008 /^@if $module\$/d
2009 /^@endif $module\$/d
2010 /^@if $module-$bootstrap_suffix\$/d
2011 /^@endif $module-$bootstrap_suffix\$/d"
2012 done
2013 for module in ${target_configdirs} ; do
2014   if test -z "${no_recursion}" \
2015      && test -f ${target_subdir}/${module}/Makefile; then
2016     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2017     rm -f ${target_subdir}/${module}/Makefile
2018   fi
2019   extrasub="$extrasub
2020 /^@if target-$module\$/d
2021 /^@endif target-$module\$/d
2022 /^@if target-$module-$bootstrap_suffix\$/d
2023 /^@endif target-$module-$bootstrap_suffix\$/d"
2024 done
2025
2026 extrasub="$extrasub
2027 /^@if /,/^@endif /d"
2028
2029 # Create the serialization dependencies.  This uses a temporary file.
2030
2031 AC_ARG_ENABLE([serial-configure],
2032 [  --enable-serial-[{host,target,build}-]configure
2033                           Force sequential configuration of
2034                           sub-packages for the host, target or build
2035                           machine, or all sub-packages])
2036
2037 case ${enable_serial_configure} in
2038   yes)
2039     enable_serial_build_configure=yes
2040     enable_serial_host_configure=yes
2041     enable_serial_target_configure=yes
2042     ;;
2043 esac
2044
2045 # These force 'configure's to be done one at a time, to avoid problems
2046 # with contention over a shared config.cache.
2047 rm -f serdep.tmp
2048 echo '# serdep.tmp' > serdep.tmp
2049 olditem=
2050 test "x${enable_serial_build_configure}" = xyes &&
2051 for item in ${build_configdirs} ; do
2052   case ${olditem} in
2053     "") ;;
2054     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2055   esac
2056   olditem=${item}
2057 done
2058 olditem=
2059 test "x${enable_serial_host_configure}" = xyes &&
2060 for item in ${configdirs} ; do
2061   case ${olditem} in
2062     "") ;;
2063     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2064   esac
2065   olditem=${item}
2066 done
2067 olditem=
2068 test "x${enable_serial_target_configure}" = xyes &&
2069 for item in ${target_configdirs} ; do
2070   case ${olditem} in
2071     "") ;;
2072     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2073   esac
2074   olditem=${item}
2075 done
2076 serialization_dependencies=serdep.tmp
2077 AC_SUBST_FILE(serialization_dependencies)
2078
2079 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
2080 # target, nonopt, and variable assignments.  These are the ones we
2081 # might not want to pass down to subconfigures.  Also strip
2082 # program-prefix, program-suffix, and program-transform-name, so that
2083 # we can pass down a consistent program-transform-name.
2084 baseargs=
2085 keep_next=no
2086 skip_next=no
2087 eval "set -- $ac_configure_args"
2088 for ac_arg
2089 do
2090   if test X"$skip_next" = X"yes"; then
2091     skip_next=no
2092     continue
2093   fi
2094   if test X"$keep_next" = X"yes"; then
2095     case $ac_arg in
2096       *\'*)
2097         ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2098     esac
2099     baseargs="$baseargs '$ac_arg'"
2100     keep_next=no
2101     continue
2102   fi
2103
2104   # Handle separated arguments.  Based on the logic generated by
2105   # autoconf 2.59.
2106   case $ac_arg in
2107     *=* | --config-cache | -C | -disable-* | --disable-* \
2108       | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2109       | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2110       | -with-* | --with-* | -without-* | --without-* | --x)
2111       separate_arg=no
2112       ;;
2113     -*)
2114       separate_arg=yes
2115       ;;
2116     *)
2117       separate_arg=no
2118       ;;
2119   esac
2120
2121   case "$ac_arg" in
2122     --no*)
2123       continue
2124       ;;
2125     --c* | \
2126     --sr* | \
2127     --ho* | \
2128     --bu* | \
2129     --t* | \
2130     --program-* | \
2131     -cache_file* | \
2132     -srcdir* | \
2133     -host* | \
2134     -build* | \
2135     -target* | \
2136     -program-prefix* | \
2137     -program-suffix* | \
2138     -program-transform-name* )
2139       skip_next=$separate_arg
2140       continue
2141       ;;
2142     -*)
2143       # An option.  Add it.
2144       case $ac_arg in
2145         *\'*)
2146           ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2147       esac
2148       baseargs="$baseargs '$ac_arg'"
2149       keep_next=$separate_arg
2150       ;;
2151     *)
2152       # Either a variable assignment, or a nonopt (triplet).  Don't
2153       # pass it down; let the Makefile handle this.
2154       continue
2155       ;;
2156   esac
2157 done
2158 # Remove the initial space we just introduced and, as these will be
2159 # expanded by make, quote '$'.
2160 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2161
2162 # Add in --program-transform-name, after --program-prefix and
2163 # --program-suffix have been applied to it.  Autoconf has already
2164 # doubled dollar signs and backslashes in program_transform_name; we want
2165 # the backslashes un-doubled, and then the entire thing wrapped in single
2166 # quotes, because this will be expanded first by make and then by the shell.
2167 # Also, because we want to override the logic in subdir configure scripts to
2168 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2169 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2170 ${program_transform_name}
2171 EOF_SED
2172 gcc_transform_name=`cat conftestsed.out`
2173 rm -f conftestsed.out
2174 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2175
2176 # For the build-side libraries, we just need to pretend we're native,
2177 # and not use the same cache file.  Multilibs are neither needed nor
2178 # desired.
2179 build_configargs="--cache-file=../config.cache ${baseargs}"
2180
2181 # For host modules, accept cache file option, or specification as blank.
2182 case "${cache_file}" in
2183 "") # empty
2184   cache_file_option="" ;;
2185 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2186   cache_file_option="--cache-file=${cache_file}" ;;
2187 *) # relative path
2188   cache_file_option="--cache-file=../${cache_file}" ;;
2189 esac
2190
2191 # Host dirs don't like to share a cache file either, horribly enough.
2192 # This seems to be due to autoconf 2.5x stupidity.
2193 host_configargs="--cache-file=./config.cache ${extra_host_args} ${baseargs}"
2194
2195 target_configargs=${baseargs}
2196
2197 # Passing a --with-cross-host argument lets the target libraries know
2198 # whether they are being built with a cross-compiler or being built
2199 # native.  However, it would be better to use other mechanisms to make the
2200 # sorts of decisions they want to make on this basis.  Please consider
2201 # this option to be deprecated.  FIXME.
2202 if test x${is_cross_compiler} = xyes ; then
2203   target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
2204 fi
2205
2206 # Default to --enable-multilib.
2207 if test x${enable_multilib} = x ; then
2208   target_configargs="--enable-multilib ${target_configargs}"
2209 fi
2210
2211 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2212 # changed from the earlier setting of with_newlib.
2213 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2214   target_configargs="--with-newlib ${target_configargs}"
2215 fi
2216
2217 # Different target subdirs use different values of certain variables
2218 # (notably CXX).  Worse, multilibs use *lots* of different values.
2219 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2220 # it doesn't automatically accept command-line overrides of them.
2221 # This means it's not safe for target subdirs to share a cache file,
2222 # which is disgusting, but there you have it.  Hopefully this can be
2223 # fixed in future.  It's still worthwhile to use a cache file for each
2224 # directory.  I think.
2225
2226 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2227 # We need to pass --target, as newer autoconf's requires consistency
2228 # for target_alias and gcc doesn't manage it consistently.
2229 target_configargs="--cache-file=./config.cache ${target_configargs}"
2230
2231 FLAGS_FOR_TARGET=
2232 case " $target_configdirs " in
2233  *" newlib "*)
2234   case " $target_configargs " in
2235   *" --with-newlib "*)
2236    case "$target" in
2237    *-cygwin*)
2238      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' ;;
2239    esac
2240
2241    # If we're not building GCC, don't discard standard headers.
2242    if test -d ${srcdir}/gcc; then
2243      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2244
2245      if test "${build}" != "${host}"; then
2246        # On Canadian crosses, CC_FOR_TARGET will have already been set
2247        # by `configure', so we won't have an opportunity to add -Bgcc/
2248        # to it.  This is right: we don't want to search that directory
2249        # for binaries, but we want the header files in there, so add
2250        # them explicitly.
2251        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2252
2253        # Someone might think of using the pre-installed headers on
2254        # Canadian crosses, in case the installed compiler is not fully
2255        # compatible with the compiler being built.  In this case, it
2256        # would be better to flag an error than risking having
2257        # incompatible object files being constructed.  We can't
2258        # guarantee that an error will be flagged, but let's hope the
2259        # compiler will do it, when presented with incompatible header
2260        # files.
2261      fi
2262    fi
2263
2264    case "${target}-${is_cross_compiler}" in
2265    i[[3456789]]86-*-linux*-no)
2266       # Here host == target, so we don't need to build gcc,
2267       # so we don't want to discard standard headers.
2268       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2269       ;;
2270    *)
2271       # If we're building newlib, use its generic headers last, but search
2272       # for any libc-related directories first (so make it the last -B
2273       # switch).
2274       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2275       ;;
2276    esac
2277    ;;
2278   esac
2279   ;;
2280 esac
2281 case "$target" in
2282 *-mingw*)
2283   # Can't be handled as Cygwin above since Mingw does not use newlib.
2284   FLAGS_FOR_TARGET=$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' ;;
2285 esac
2286
2287 # Allow the user to override the flags for
2288 # our build compiler if desired.
2289 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2290
2291 # On Canadian crosses, we'll be searching the right directories for
2292 # the previously-installed cross compiler, so don't bother to add
2293 # flags for directories within the install tree of the compiler
2294 # being built; programs in there won't even run.
2295 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2296   # Search for pre-installed headers if nothing else fits.
2297   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2298 fi
2299
2300 if test "x${use_gnu_ld}" = x &&
2301    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2302   # Arrange for us to find uninstalled linker scripts.
2303   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2304 fi
2305
2306 # Search for other target-specific linker scripts and such.
2307 case "${target}" in
2308   m32c-*-* )
2309     if test -d ${srcdir}/libgloss/m32c; then
2310       # This is for crt0.o
2311       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2312       # This is for r8c.ld
2313       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2314       # This is for libnosys.a
2315       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2316     fi
2317     ;;
2318   mep*)
2319     FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
2320     ;;
2321 esac
2322
2323 # Makefile fragments.
2324 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2325 do
2326   eval fragval=\$$frag
2327   if test $fragval != /dev/null; then
2328     eval $frag=${srcdir}/$fragval
2329   fi
2330 done
2331 AC_SUBST_FILE(host_makefile_frag)
2332 AC_SUBST_FILE(target_makefile_frag)
2333 AC_SUBST_FILE(alphaieee_frag)
2334 AC_SUBST_FILE(ospace_frag)
2335
2336 # Miscellanea: directories, flags, etc.
2337 AC_SUBST(RPATH_ENVVAR)
2338 AC_SUBST(tooldir)
2339 AC_SUBST(build_tooldir)
2340 AC_SUBST(CONFIGURE_GDB_TK)
2341 AC_SUBST(GDB_TK)
2342 AC_SUBST(INSTALL_GDB_TK)
2343
2344 # Build module lists & subconfigure args.
2345 AC_SUBST(build_configargs)
2346 AC_SUBST(build_configdirs)
2347
2348 # Host module lists & subconfigure args.
2349 AC_SUBST(host_configargs)
2350 AC_SUBST(configdirs)
2351
2352 # Target module lists & subconfigure args.
2353 AC_SUBST(target_configargs)
2354
2355
2356 # Build tools.
2357 AC_SUBST(CC_FOR_BUILD)
2358 AC_SUBST(config_shell)
2359
2360 # Generate default definitions for YACC, M4, LEX and other programs that run
2361 # on the build machine.  These are used if the Makefile can't locate these
2362 # programs in objdir.
2363 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2364
2365 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2366 case " $build_configdirs " in
2367   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2368   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2369 esac
2370
2371 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2372 case " $build_configdirs " in
2373   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2374 esac
2375
2376 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2377 case " $build_configdirs " in
2378   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2379 esac
2380
2381 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2382 case " $build_configdirs " in
2383   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2384   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2385 esac
2386
2387 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2388 case " $build_configdirs " in
2389   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2390 esac
2391
2392 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2393 case " $build_configdirs " in
2394   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2395   *)
2396 changequote(,)
2397     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2398     # higher, else we use the "missing" dummy.
2399     if ${MAKEINFO} --version \
2400        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2401       :
2402     else
2403       MAKEINFO="$MISSING makeinfo"
2404     fi
2405     ;;
2406 changequote([,])
2407 esac
2408
2409 # FIXME: expect and dejagnu may become build tools?
2410
2411 AC_CHECK_PROGS(EXPECT, expect, expect)
2412 case " $configdirs " in
2413   *" expect "*)
2414     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2415     ;;
2416 esac
2417
2418 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2419 case " $configdirs " in
2420   *" dejagnu "*)
2421     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2422     ;;
2423 esac
2424
2425
2426 # Host tools.
2427 NCN_STRICT_CHECK_TOOLS(AR, ar)
2428 NCN_STRICT_CHECK_TOOLS(AS, as)
2429 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2430 NCN_STRICT_CHECK_TOOLS(LD, ld)
2431 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2432 NCN_STRICT_CHECK_TOOLS(NM, nm)
2433 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2434 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2435 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2436 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2437 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2438 AC_SUBST(CC)
2439 AC_SUBST(CXX)
2440 AC_SUBST(CFLAGS)
2441 AC_SUBST(CFLAGS_FOR_BUILD)
2442 AC_SUBST(CXXFLAGS)
2443
2444 # Target tools.
2445 AC_ARG_WITH([build-time-tools],
2446   [  --with-build-time-tools=path
2447                           use given path to find target tools during the build],
2448   [case x"$withval" in
2449      x/*) ;;
2450      *)
2451        with_build_time_tools=
2452        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2453        ;;
2454    esac],
2455   [with_build_time_tools=])
2456
2457 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2458 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2459 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2460 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2461 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2462
2463 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2464 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2465 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2466 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2467 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2468 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2469 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2470 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2471 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2472 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2473
2474 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2475
2476 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2477 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2478 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2479 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2480                 [gcc/g++ -B$$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],
2481                 c++)
2482 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2483                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2484                 c++)
2485 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2486 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2487 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2488                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2489 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2490                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2491 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2492 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2493 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2494 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2495 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2496 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2497 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2498
2499 AC_SUBST(FLAGS_FOR_TARGET)
2500 AC_SUBST(RAW_CXX_FOR_TARGET)
2501
2502 # Certain tools may need extra flags.
2503 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2504 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2505 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2506
2507 # When building target libraries, except in a Canadian cross, we use
2508 # the same toolchain as the compiler we just built.
2509 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2510 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2511 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2512 if test $host = $build; then
2513   case " $configdirs " in
2514     *" gcc "*)
2515       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2516       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2517       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2518       ;;
2519   esac
2520 fi
2521
2522 AC_SUBST(COMPILER_AS_FOR_TARGET)
2523 AC_SUBST(COMPILER_LD_FOR_TARGET)
2524 AC_SUBST(COMPILER_NM_FOR_TARGET)
2525
2526 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2527 AC_ARG_ENABLE(maintainer-mode,
2528 [  --enable-maintainer-mode enable make rules and dependencies not useful
2529                           (and sometimes confusing) to the casual installer],
2530       USE_MAINTAINER_MODE=$enableval,
2531       USE_MAINTAINER_MODE=no)
2532 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2533 AC_SUBST(MAINTAINER_MODE_TRUE)
2534 AC_SUBST(MAINTAINER_MODE_FALSE)
2535 if test "$USE_MAINTAINER_MODE" = yes; then
2536   MAINTAINER_MODE_TRUE=
2537   MAINTAINER_MODE_FALSE='#'
2538 else
2539   MAINTAINER_MODE_TRUE='#'
2540   MAINTAINER_MODE_FALSE=
2541 fi
2542 MAINT=$MAINTAINER_MODE_TRUE
2543 AC_SUBST(MAINT)dnl
2544
2545 # ---------------------
2546 # GCC bootstrap support
2547 # ---------------------
2548
2549 # Stage specific cflags for build.
2550 stage1_cflags="-g"
2551 case $build in
2552   vax-*-*)
2553     case ${GCC} in
2554       yes) stage1_cflags="-g -Wa,-J" ;;
2555       *) stage1_cflags="-g -J" ;;
2556     esac ;;
2557 esac
2558
2559 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
2560 if test "$GCC" = yes; then
2561   saved_CFLAGS="$CFLAGS"
2562
2563   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
2564   CFLAGS="$CFLAGS -fkeep-inline-functions"
2565   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
2566   AC_TRY_COMPILE(,,
2567     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
2568     [AC_MSG_RESULT([no])])
2569
2570   CFLAGS="$saved_CFLAGS"
2571 fi
2572
2573 AC_SUBST(stage1_cflags)
2574
2575 # Enable --enable-checking in stage1 of the compiler.
2576 AC_ARG_ENABLE(stage1-checking,
2577 [  --enable-stage1-checking[=all]   choose additional checking for stage1
2578                           of the compiler.],
2579 [stage1_checking=--enable-checking=${enable_stage1_checking}],
2580 [if test "x$enable_checking" = xno; then
2581   stage1_checking=--enable-checking
2582 else
2583   stage1_checking=--enable-checking${enable_checking+=}$enable_checking
2584 fi])
2585 AC_SUBST(stage1_checking)
2586
2587 # Enable -Werror in bootstrap stage2 and later.
2588 AC_ARG_ENABLE(werror,
2589 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2590 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
2591   enable_werror=yes
2592 else
2593   enable_werror=no
2594 fi])
2595 case ${enable_werror} in
2596   yes) stage2_werror_flag="--enable-werror-always" ;;
2597   *) stage2_werror_flag="" ;;
2598 esac
2599 AC_SUBST(stage2_werror_flag)
2600
2601 # Flags needed to enable html installing and building
2602 AC_ARG_WITH(datarootdir,
2603 [  --with-datarootdir   Use datarootdir as the data root directory.],
2604 [datarootdir="\${prefix}/${withval}"],
2605 [datarootdir="\${prefix}/share"])
2606
2607 AC_ARG_WITH(docdir,
2608 [  --with-docdir        Install documentation in this directory.],
2609 [docdir="\${prefix}/${withval}"],
2610 [docdir="\${datarootdir}/doc"])
2611
2612 AC_ARG_WITH(htmldir,
2613 [  --with-htmldir       Install html in this directory.],
2614 [htmldir="\${prefix}/${withval}"],
2615 [htmldir="\${docdir}"])
2616
2617 AC_SUBST(datarootdir)
2618 AC_SUBST(docdir)
2619 AC_SUBST(htmldir)
2620
2621 AC_OUTPUT(Makefile)