configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   2 #   2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
   3 #
   4 # This file is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17
  18 ##############################################################################
  19 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  20
  21 sinclude(config/acx.m4)
  22
  23 AC_INIT(move-if-change)
  24 AC_PREREQ(2.13)
  25 AC_CANONICAL_SYSTEM
  26 AC_ARG_PROGRAM
  27
  28 # Get 'install' or 'install-sh' and its variants.
  29 AC_PROG_INSTALL
  30 ACX_PROG_LN
  31 AC_PROG_LN_S
  32
  33 ### we might need to use some other shell than /bin/sh for running subshells
  34 ### If we are on Windows, search for the shell.  This will permit people
  35 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  36 ### without also having to set CONFIG_SHELL.  This code will work when
  37 ### using bash, which sets OSTYPE.
  38 case "${OSTYPE}" in
  39 *win32*)
  40   if test x${CONFIG_SHELL} = x ; then
  41     if test ! -f /bin/sh ; then
  42       if test x${SHELL} != x && test -f ${SHELL} ; then
  43         CONFIG_SHELL=${SHELL}
  44         export CONFIG_SHELL
  45       else
  46         for prog in sh sh.exe bash bash.exe; do
  47           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  48           for dir in $PATH; do
  49             test -z "$dir" && dir=.
  50             if test -f $dir/$prog; then
  51               CONFIG_SHELL=$dir/$prog
  52               export CONFIG_SHELL
  53               break
  54             fi
  55           done
  56           IFS="$save_ifs"
  57           test -n "${CONFIG_SHELL}" && break
  58         done
  59       fi
  60     fi
  61   fi
  62   ;;
  63 esac
  64
  65 config_shell=${CONFIG_SHELL-/bin/sh}
  66
  67 progname=$0
  68 # if PWD already has a value, it is probably wrong.
  69 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  70
  71 # Export original configure arguments for use by sub-configures.  These
  72 # will be expanded by make, so quote '$'.
  73 tmp="$progname $@"
  74 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
  75 $tmp
  76 EOF_SED
  77 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
  78 rm -f conftestsed.out
  79 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  80
  81 moveifchange=${srcdir}/move-if-change
  82
  83 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  84
  85 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
  86 # a relative path.
  87 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
  88   INSTALL="${srcpwd}/install-sh -c"
  89 fi
  90
  91 # Set srcdir to "." if that's what it is.
  92 # This is important for multilib support.
  93 pwd=`${PWDCMD-pwd}`
  94 if test "${pwd}" = "${srcpwd}" ; then
  95   srcdir=.
  96 fi
  97
  98 topsrcdir=$srcpwd
  99
 100 extra_host_args=
 101
 102 ### To add a new directory to the tree, first choose whether it is a target
 103 ### or a host dependent tool.  Then put it into the appropriate list
 104 ### (library or tools, host or target), doing a dependency sort.
 105
 106 # Subdirs will be configured in the order listed in build_configdirs,
 107 # configdirs, or target_configdirs; see the serialization section below.
 108
 109 # Dependency sorting is only needed when *configuration* must be done in
 110 # a particular order.  In all cases a dependency should be specified in
 111 # the Makefile, whether or not it's implicitly specified here.
 112
 113 # Double entries in build_configdirs, configdirs, or target_configdirs may
 114 # cause circular dependencies and break everything horribly.
 115
 116 # these library is used by various programs built for the build
 117 # environment
 118 #
 119 build_libs="build-libiberty"
 120
 121 # these tools are built for the build environment
 122 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 123
 124 # these libraries are used by various programs built for the host environment
 125 #
 126 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber"
 127
 128 # these tools are built for the host environment
 129 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 130 # know that we are building the simulator.
 131 # binutils, gas and ld appear in that order because it makes sense to run
 132 # "make check" in that particular order.
 133 host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils gettext zip fastjar gnattools"
 134
 135 # libgcj represents the runtime libraries only used by gcj.
 136 libgcj="target-libffi \
 137         target-zlib \
 138         target-qthreads \
 139         target-libjava"
 140
 141 # these libraries are built for the target environment, and are built after
 142 # the host libraries and the host tools (which may be a cross compiler)
 143 #
 144 target_libraries="target-libiberty \
 145                 target-libgloss \
 146                 target-newlib \
 147                 target-libstdc++-v3 \
 148                 target-libmudflap \
 149                 target-libssp \
 150                 target-libgfortran \
 151                 target-boehm-gc \
 152                 ${libgcj} \
 153                 target-libobjc \
 154                 target-libada \
 155                 target-libgomp"
 156
 157 # these tools are built using the target libraries, and are intended to
 158 # run only in the target environment
 159 #
 160 # note: any program that *uses* libraries that are in the "target_libraries"
 161 # list belongs in this list.  those programs are also very likely
 162 # candidates for the "native_only" list which follows
 163 #
 164 target_tools="target-examples target-groff target-gperf target-rda"
 165
 166 ################################################################################
 167
 168 ## All tools belong in one of the four categories, and are assigned above
 169 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 170 ## is important because configure will choke if they ever get through.
 171 ## ${configdirs} is directories we build using the host tools.
 172 ## ${target_configdirs} is directories we build using the target tools.
 173 configdirs=`echo ${host_libs} ${host_tools}`
 174 target_configdirs=`echo ${target_libraries} ${target_tools}`
 175 build_configdirs=`echo ${build_libs} ${build_tools}`
 176
 177 ################################################################################
 178
 179 srcname="gnu development package"
 180
 181 # This gets set non-empty for some net releases of packages.
 182 appdirs=""
 183
 184 # Define is_cross_compiler to save on calls to 'test'.
 185 is_cross_compiler=
 186 if test x"${host}" = x"${target}" ; then
 187   is_cross_compiler=no
 188 else
 189   is_cross_compiler=yes
 190 fi
 191
 192 # Find the build and target subdir names.
 193 GCC_TOPLEV_SUBDIRS
 194
 195 # Skipdirs are removed silently.
 196 skipdirs=
 197 # Noconfigdirs are removed loudly.
 198 noconfigdirs=""
 199
 200 use_gnu_ld=
 201 # Make sure we don't let GNU ld be added if we didn't want it.
 202 if test x$with_gnu_ld = xno ; then
 203   use_gnu_ld=no
 204   noconfigdirs="$noconfigdirs ld"
 205 fi
 206
 207 use_gnu_as=
 208 # Make sure we don't let GNU as be added if we didn't want it.
 209 if test x$with_gnu_as = xno ; then
 210   use_gnu_as=no
 211   noconfigdirs="$noconfigdirs gas"
 212 fi
 213
 214 # some tools are so dependent upon X11 that if we're not building with X,
 215 # it's not even worth trying to configure, much less build, that tool.
 216
 217 case ${with_x} in
 218   yes | "") ;; # the default value for this tree is that X11 is available
 219   no)
 220     skipdirs="${skipdirs} tk itcl libgui"
 221     # We won't be able to build gdbtk without X.
 222     enable_gdbtk=no
 223     ;;
 224   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 225 esac
 226
 227 # Some tools are only suitable for building in a "native" situation.
 228 # Remove these if host!=target.
 229 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"
 230
 231 # Similarly, some are only suitable for cross toolchains.
 232 # Remove these if host=target.
 233 cross_only="target-libgloss target-newlib target-opcodes"
 234
 235 case $is_cross_compiler in
 236   no) skipdirs="${skipdirs} ${cross_only}" ;;
 237   yes) skipdirs="${skipdirs} ${native_only}" ;;
 238 esac
 239
 240 # If both --with-headers and --with-libs are specified, default to
 241 # --without-newlib.
 242 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 243    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 244   if test x"${with_newlib}" = x ; then
 245     with_newlib=no
 246   fi
 247 fi
 248
 249 # Recognize --with-newlib/--without-newlib.
 250 case ${with_newlib} in
 251   no) skipdirs="${skipdirs} target-newlib" ;;
 252   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 253 esac
 254
 255 # Configure extra directories which are host specific
 256
 257 case "${host}" in
 258   *-cygwin*)
 259     configdirs="$configdirs libtermcap" ;;
 260 esac
 261
 262 # A target can indicate whether a language isn't supported for some reason.
 263 # Only spaces may be used in this macro; not newlines or tabs.
 264 unsupported_languages=
 265
 266 # Remove more programs from consideration, based on the host or
 267 # target this usually means that a port of the program doesn't
 268 # exist yet.
 269
 270 case "${host}" in
 271   hppa*64*-*-*)
 272     noconfigdirs="$noconfigdirs byacc"
 273     ;;
 274   i[[3456789]]86-*-vsta)
 275     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 276     ;;
 277   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 278     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 279     ;;
 280   i[[3456789]]86-*-mingw32*)
 281     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 282     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 283     ;;
 284   i[[3456789]]86-*-beos*)
 285     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 286     ;;
 287   *-*-cygwin*)
 288     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 289     ;;
 290   *-*-netbsd*)
 291     noconfigdirs="$noconfigdirs rcs"
 292     ;;
 293   ppc*-*-pe)
 294     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 295     ;;
 296   powerpc-*-beos*)
 297     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 298     ;;
 299 esac
 300
 301
 302 AC_ARG_ENABLE(libada,
 303 [  --enable-libada        Builds libada directory],
 304 ENABLE_LIBADA=$enableval,
 305 ENABLE_LIBADA=yes)
 306 if test "${ENABLE_LIBADA}" != "yes" ; then
 307   noconfigdirs="$noconfigdirs gnattools"
 308 fi
 309
 310 AC_ARG_ENABLE(libssp,
 311 [  --enable-libssp        Builds libssp directory],
 312 ENABLE_LIBSSP=$enableval,
 313 ENABLE_LIBSSP=yes)
 314
 315 # Save it here so that, even in case of --enable-libgcj, if the Java
 316 # front-end isn't enabled, we still get libgcj disabled.
 317 libgcj_saved=$libgcj
 318 case $enable_libgcj in
 319 yes)
 320   # If we reset it here, it won't get added to noconfigdirs in the
 321   # target-specific build rules, so it will be forcibly enabled
 322   # (unless the Java language itself isn't enabled).
 323   libgcj=
 324   ;;
 325 no)
 326   # Make sure we get it printed in the list of not supported target libs.
 327   noconfigdirs="$noconfigdirs ${libgcj}"
 328   ;;
 329 esac
 330
 331
 332 # Disable libmudflap on some systems.
 333 if test x$enable_libmudflap = x ; then
 334     case "${target}" in
 335     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 336         # Enable libmudflap by default in GNU and friends.
 337         ;;
 338     *-*-freebsd*)
 339         # Enable libmudflap by default in FreeBSD.
 340         ;;
 341     *)
 342         # Disable it by default everywhere else.
 343         noconfigdirs="$noconfigdirs target-libmudflap"
 344         ;;
 345     esac
 346 fi
 347
 348 # Disable libgomp on non POSIX hosted systems.
 349 if test x$enable_libgomp = x ; then
 350     # Enable libgomp by default on hosted POSIX systems.
 351     case "${target}" in
 352     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 353         ;;
 354     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 355         ;;
 356     *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
 357         ;;
 358     *-*-darwin* | *-*-aix*)
 359         ;;
 360     *)
 361         noconfigdirs="$noconfigdirs target-libgomp"
 362         ;;
 363     esac
 364 fi
 365
 366
 367 case "${target}" in
 368   *-*-chorusos)
 369     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 370     ;;
 371   powerpc-*-darwin*)
 372     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 373     noconfigdirs="$noconfigdirs sim target-rda"
 374     ;;
 375   *-*-darwin*)
 376     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 377     noconfigdirs="$noconfigdirs sim target-rda"
 378     noconfigdirs="$noconfigdirs ${libgcj}"
 379     ;;
 380   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 381     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 382     ;;
 383   *-*-freebsd*)
 384     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 385     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 386         && test -f /usr/local/include/gmp.h; then
 387       with_gmp=/usr/local
 388     fi
 389
 390     # Skip some stuff that's unsupported on some FreeBSD configurations.
 391     case "${target}" in
 392       i*86-*-*) ;;
 393       alpha*-*-*) ;;
 394       *)
 395         noconfigdirs="$noconfigdirs ${libgcj}"
 396         ;;
 397     esac
 398     ;;
 399   *-*-kaos*)
 400     # Remove unsupported stuff on all kaOS configurations.
 401     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 402     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 403     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 404     noconfigdirs="$noconfigdirs target-libgloss"
 405     ;;
 406   *-*-netbsd*)
 407     # Skip some stuff on all NetBSD configurations.
 408     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 409
 410     # Skip some stuff that's unsupported on some NetBSD configurations.
 411     case "${target}" in
 412       i*86-*-netbsdelf*) ;;
 413       arm*-*-netbsdelf*) ;;
 414       *)
 415         noconfigdirs="$noconfigdirs ${libgcj}"
 416         ;;
 417     esac
 418     ;;
 419   *-*-netware*)
 420     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 421     ;;
 422   *-*-rtems*)
 423     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 424     ;;
 425     # The tpf target doesn't support gdb yet.
 426   *-*-tpf*)
 427     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 428     ;;
 429   *-*-uclinux*)
 430     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 431     ;;
 432   *-*-vxworks*)
 433     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 434     ;;
 435   alpha*-dec-osf*)
 436     # ld works, but does not support shared libraries.
 437     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 438     # gas doesn't generate exception information.
 439     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 440     ;;
 441   alpha*-*-*vms*)
 442     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 443     ;;
 444   alpha*-*-linux*)
 445     # newlib is not 64 bit ready
 446     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 447     ;;
 448   alpha*-*-*)
 449     # newlib is not 64 bit ready
 450     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 451     ;;
 452   am33_2.0-*-linux*)
 453     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 454     ;;
 455   sh-*-linux*)
 456     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 457     ;;
 458   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 459     noconfigdirs="$noconfigdirs ${libgcj}"
 460     noconfigdirs="$noconfigdirs target-examples"
 461     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 462     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 463     noconfigdirs="$noconfigdirs expect dejagnu"
 464     # the C++ libraries don't build on top of CE's C libraries
 465     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 466     noconfigdirs="$noconfigdirs target-newlib"
 467     case "${host}" in
 468       *-*-cygwin*) ;; # keep gdb and readline
 469       *) noconfigdirs="$noconfigdirs gdb readline"
 470          ;;
 471     esac
 472     ;;
 473   arc-*-*)
 474     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 475     ;;
 476   arm-semi-aof )
 477     ;;
 478   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 479     noconfigdirs="$noconfigdirs ${libgcj}"
 480     ;;
 481   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 482     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 483     ;;
 484   arm*-*-linux-gnueabi)
 485     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 486     noconfigdirs="$noconfigdirs target-libjava target-libobjc"
 487     ;;
 488   arm*-*-symbianelf*)
 489     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 490     ;;
 491   arm-*-pe*)
 492     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 493     ;;
 494   thumb-*-coff)
 495     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 496     ;;
 497   thumb-*-elf)
 498     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 499     ;;
 500   thumb-*-pe)
 501     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 502     ;;
 503   arm-*-riscix*)
 504     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 505     ;;
 506   avr-*-*)
 507     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 508     ;;
 509   bfin-*-*)
 510     noconfigdirs="$noconfigdirs target-libgloss gdb"
 511     if test x${is_cross_compiler} != xno ; then
 512       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 513     fi
 514     ;;
 515   c4x-*-* | tic4x-*-*)
 516     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 517     ;;
 518   c54x*-*-* | tic54x-*-*)
 519     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 520     ;;
 521   cris-*-* | crisv32-*-*)
 522     unsupported_languages="$unsupported_languages java"
 523     case "${target}" in
 524       *-*-aout)
 525         unsupported_languages="$unsupported_languages fortran"
 526         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 527       *-*-elf)
 528         unsupported_languages="$unsupported_languages fortran"
 529         noconfigdirs="$noconfigdirs target-boehm-gc";;
 530       *-*-linux*)
 531         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 532       *)
 533         unsupported_languages="$unsupported_languages fortran"
 534         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 535     esac
 536     ;;
 537   crx-*-*)
 538     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 539     ;;
 540   d10v-*-*)
 541     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 542     ;;
 543   d30v-*-*)
 544     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 545     ;;
 546   fr30-*-elf*)
 547     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 548     ;;
 549   frv-*-*)
 550     noconfigdirs="$noconfigdirs ${libgcj}"
 551     ;;
 552   h8300*-*-*)
 553     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 554     ;;
 555   h8500-*-*)
 556     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 557     ;;
 558   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 559     ;;
 560   hppa*64*-*-linux* | parisc*64*-*-linux*)
 561     # In this case, it's because the hppa64-linux target is for
 562     # the kernel only at this point and has no libc, and thus no
 563     # headers, crt*.o, etc., all of which are needed by these.
 564     noconfigdirs="$noconfigdirs target-zlib"
 565     ;;
 566   parisc*-*-linux* | hppa*-*-linux*)
 567     ;;
 568   hppa*-*-*elf* | \
 569   hppa*-*-lites* | \
 570   hppa*-*-openbsd* | \
 571   hppa*64*-*-*)
 572     noconfigdirs="$noconfigdirs ${libgcj}"
 573     ;;
 574   hppa*-hp-hpux11*)
 575     noconfigdirs="$noconfigdirs ld shellutils"
 576     ;;
 577   hppa*-*-*)
 578     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 579     # build on HP-UX 10.20.
 580     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 581     ;;
 582   i960-*-*)
 583     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 584     ;;
 585   ia64*-*-elf*)
 586     # No gdb support yet.
 587     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 588     ;;
 589   ia64*-**-hpux*)
 590     # No gdb or ld support yet.
 591     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 592     ;;
 593   i370-*-opened*)
 594     ;;
 595   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 596     noconfigdirs="$noconfigdirs ${libgcj}"
 597     ;;
 598   i[[3456789]]86-*-linux*)
 599     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 600     # not build java stuff by default.
 601     case "${target}" in
 602       *-*-*libc1*)
 603         noconfigdirs="$noconfigdirs ${libgcj}";;
 604     esac
 605
 606     # This section makes it possible to build newlib natively on linux.
 607     # If we are using a cross compiler then don't configure newlib.
 608     if test x${is_cross_compiler} != xno ; then
 609       noconfigdirs="$noconfigdirs target-newlib"
 610     fi
 611     noconfigdirs="$noconfigdirs target-libgloss"
 612     # If we are not using a cross compiler, do configure newlib.
 613     # Note however, that newlib will only be configured in this situation
 614     # if the --with-newlib option has been given, because otherwise
 615     # 'target-newlib' will appear in skipdirs.
 616     ;;
 617   i[[3456789]]86-*-mingw32*)
 618     target_configdirs="$target_configdirs target-mingw"
 619     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 620
 621     # Can't build gdb for mingw32 if not native.
 622     case "${host}" in
 623       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 624       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 625          ;;
 626     esac
 627     ;;
 628   *-*-cygwin*)
 629     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 630     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 631     # always build newlib if winsup directory is present.
 632     if test -d "$srcdir/winsup"; then
 633       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 634     elif test -d "$srcdir/newlib"; then
 635       echo "Warning: winsup is missing so newlib can't be built."
 636     fi
 637
 638     # Can't build gdb for Cygwin if not native.
 639     case "${host}" in
 640       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 641       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 642          ;;
 643     esac
 644     ;;
 645   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 646   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 647     ;;
 648   i[[3456789]]86-*-pe)
 649     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 650     ;;
 651   i[[3456789]]86-*-sco3.2v5*)
 652     # The linker does not yet know about weak symbols in COFF,
 653     # and is not configured to handle mixed ELF and COFF.
 654     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 655     ;;
 656   i[[3456789]]86-*-sco*)
 657     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 658     ;;
 659   i[[3456789]]86-*-solaris2*)
 660     noconfigdirs="$noconfigdirs target-libgloss"
 661     ;;
 662   i[[3456789]]86-*-sysv4*)
 663     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 664     ;;
 665   i[[3456789]]86-*-beos*)
 666     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 667     ;;
 668   i[[3456789]]86-*-rdos*)
 669     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 670     ;;
 671   m32r-*-*)
 672     noconfigdirs="$noconfigdirs ${libgcj}"
 673     ;;
 674   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 675     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 676     ;;
 677   m68k-*-elf*)
 678     noconfigdirs="$noconfigdirs ${libgcj}"
 679     ;;
 680   m68k-*-coff*)
 681     noconfigdirs="$noconfigdirs ${libgcj}"
 682     ;;
 683   mcore-*-pe*)
 684   # The EPOC C++ environment does not support exceptions or rtti,
 685   # and so building libstdc++-v3 tends not to always work.
 686     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 687     ;;
 688   mmix-*-*)
 689     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 690     unsupported_languages="$unsupported_languages fortran java"
 691     ;;
 692   mn10200-*-*)
 693     noconfigdirs="$noconfigdirs ${libgcj}"
 694     ;;
 695   mn10300-*-*)
 696     noconfigdirs="$noconfigdirs ${libgcj}"
 697     ;;
 698   mt-*-*)
 699     noconfigdirs="$noconfigdirs sim"
 700     ;;
 701   powerpc-*-aix*)
 702     # copied from rs6000-*-* entry
 703     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 704     ;;
 705   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 706     target_configdirs="$target_configdirs target-winsup"
 707     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 708     # always build newlib.
 709     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 710     ;;
 711     # This is temporary until we can link against shared libraries
 712   powerpcle-*-solaris*)
 713     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 714     ;;
 715   powerpc-*-beos*)
 716     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 717     ;;
 718   powerpc-*-eabi)
 719     noconfigdirs="$noconfigdirs ${libgcj}"
 720     ;;
 721   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 722     ;;
 723   rs6000-*-lynxos*)
 724     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 725     ;;
 726   rs6000-*-aix*)
 727     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 728     ;;
 729   rs6000-*-*)
 730     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 731     ;;
 732   m68k-apollo-*)
 733     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 734     ;;
 735   mips*-*-irix5*)
 736     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 737     ;;
 738   mips*-*-irix6*)
 739     # Linking libjava exceeds command-line length limits on at least
 740     # IRIX 6.2, but not on IRIX 6.5.
 741     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 742     # <oldham@codesourcery.com>
 743     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 744     ;;
 745   mips*-dec-bsd*)
 746     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 747     ;;
 748   mips*-*-bsd*)
 749     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 750     ;;
 751   mipstx39-*-*)
 752     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 753     ;;
 754   mips64*-*-linux*)
 755     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 756     ;;
 757   mips*-*-linux*)
 758     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 759     ;;
 760   mips*-*-*)
 761     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 762     ;;
 763   romp-*-*)
 764     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 765     ;;
 766   sh-*-* | sh64-*-*)
 767     case "${host}" in
 768       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 769       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 770       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 771       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 772     esac
 773     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 774     ;;
 775   sparc-*-elf*)
 776     noconfigdirs="$noconfigdirs ${libgcj}"
 777     ;;
 778   sparc64-*-elf*)
 779     noconfigdirs="$noconfigdirs ${libgcj}"
 780     ;;
 781   sparclite-*-*)
 782     noconfigdirs="$noconfigdirs ${libgcj}"
 783     ;;
 784   sparc-*-sunos4*)
 785     noconfigdirs="$noconfigdirs ${libgcj}"
 786     if test x${is_cross_compiler} != xno ; then
 787            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 788     else
 789            use_gnu_ld=no
 790     fi
 791     ;;
 792   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 793     noconfigdirs="$noconfigdirs ${libgcj}"
 794     ;;
 795   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 796     ;;
 797   v810-*-*)
 798     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 799     ;;
 800   v850-*-*)
 801     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 802     ;;
 803   v850e-*-*)
 804     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 805     ;;
 806   v850ea-*-*)
 807     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 808     ;;
 809   vax-*-vms)
 810     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 811     ;;
 812   vax-*-*)
 813     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 814     ;;
 815   xtensa-*-*)
 816     noconfigdirs="$noconfigdirs ${libgcj}"
 817     ;;
 818   ip2k-*-*)
 819     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 820     ;;
 821   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 822     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 823     ;;
 824   *-*-lynxos*)
 825     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 826     ;;
 827   *-*-*)
 828     noconfigdirs="$noconfigdirs ${libgcj}"
 829     ;;
 830 esac
 831
 832 # If we aren't building newlib, then don't build libgloss, since libgloss
 833 # depends upon some newlib header files.
 834 case "${noconfigdirs}" in
 835   *target-libgloss*) ;;
 836   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 837 esac
 838
 839 # Work in distributions that contain no compiler tools, like Autoconf.
 840 tentative_cc=""
 841 host_makefile_frag=/dev/null
 842 if test -d ${srcdir}/config ; then
 843 case "${host}" in
 844   m68k-hp-hpux*)
 845     # Avoid "too much defining" errors from HPUX compiler.
 846     tentative_cc="cc -Wp,-H256000"
 847     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 848     # If it's HP/UX ar, this should be harmless.
 849     RANLIB="ar ts"
 850     ;;
 851   m68k-apollo-sysv*)
 852     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 853     ;;
 854   m68k-apollo-bsd*)
 855     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 856     # chokes on bfd, the compiler won't let you assign integers to enums, and
 857     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 858     # the apollo compiler" (the preferred version of GCC could be called cc,
 859     # or whatever), but I'm not sure leaving CC as cc is any better...
 860     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 861     # Used to have BISON=yacc.
 862     tentative_cc=gcc
 863     ;;
 864   m88k-dg-dgux*)
 865     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 866     ;;
 867   m88k-harris-cxux*)
 868     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 869     tentative_cc="cc -Xa"
 870     host_makefile_frag="config/mh-cxux"
 871     ;;
 872   m88k-motorola-sysv*)
 873     ;;
 874   mips*-dec-ultrix*)
 875     tentative_cc="cc -Wf,-XNg1000"
 876     host_makefile_frag="config/mh-decstation"
 877     ;;
 878   mips*-nec-sysv4*)
 879     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 880     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 881     host_makefile_frag="config/mh-necv4"
 882     ;;
 883   mips*-sgi-irix4*)
 884     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 885     # environment.  Also bump switch table size so that cp-parse will
 886     # compile.  Bump string length limit so linker builds.
 887     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 888     ;;
 889   mips*-*-sysv4*)
 890     host_makefile_frag="config/mh-sysv4"
 891     ;;
 892   mips*-*-sysv*)
 893     # This is for a MIPS running RISC/os 4.52C.
 894
 895     # This is needed for GDB, but needs to be in the top-level make because
 896     # if a library is compiled with the bsd headers and gets linked with the
 897     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 898     # a different size).
 899     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 900     # known except to select the sysv environment.  Could we use /proc instead?
 901     # These "sysv environments" and "bsd environments" often end up being a pain.
 902     #
 903     # This is not part of CFLAGS because perhaps not all C compilers have this
 904     # option.
 905     tentative_cc="cc -systype sysv"
 906     ;;
 907   i370-ibm-opened*)
 908     tentative_cc="c89"
 909     ;;
 910   i[[3456789]]86-*-sysv5*)
 911     host_makefile_frag="config/mh-sysv5"
 912     ;;
 913   i[[3456789]]86-*-dgux*)
 914     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 915     host_makefile_frag="config/mh-dgux386"
 916     ;;
 917   i[[3456789]]86-ncr-sysv4.3*)
 918     # The MetaWare compiler will generate a copyright message unless you
 919     # turn it off by adding the -Hnocopyr flag.
 920     tentative_cc="cc -Hnocopyr"
 921     ;;
 922   i[[3456789]]86-ncr-sysv4*)
 923     # for an NCR 3000 (i486/SVR4) system.
 924     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 925     # This compiler not only emits obnoxious copyright messages every time
 926     # you run it, but it chokes and dies on a whole bunch of GNU source
 927     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 928     tentative_cc="/usr/ccs/ATT/cc"
 929     host_makefile_frag="config/mh-ncr3000"
 930     ;;
 931   i[[3456789]]86-*-sco3.2v5*)
 932     ;;
 933   i[[3456789]]86-*-sco*)
 934     # The native C compiler botches some simple uses of const.  Unfortunately,
 935     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 936     tentative_cc="cc -Dconst="
 937     host_makefile_frag="config/mh-sco"
 938     ;;
 939   i[[3456789]]86-*-udk*)
 940     host_makefile_frag="config/mh-sysv5"
 941     ;;
 942   i[[3456789]]86-*-solaris2*)
 943     host_makefile_frag="config/mh-sysv4"
 944     ;;
 945   i[[3456789]]86-*-msdosdjgpp*)
 946     host_makefile_frag="config/mh-djgpp"
 947     ;;
 948   *-cygwin*)
 949     host_makefile_frag="config/mh-cygwin"
 950     ;;
 951   *-mingw32*)
 952     ;;
 953   *-interix*)
 954     host_makefile_frag="config/mh-interix"
 955     ;;
 956   vax-*-ultrix2*)
 957     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 958     tentative_cc=gcc
 959     ;;
 960   *-*-solaris2*)
 961     host_makefile_frag="config/mh-solaris"
 962     ;;
 963   m68k-sun-sunos*)
 964     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 965     # without overflowing the jump tables (-J says to use a 32 bit table)
 966     tentative_cc="cc -J"
 967     ;;
 968   *-hp-hpux*)
 969     tentative_cc="cc -Wp,-H256000"
 970     ;;
 971   *-*-hiux*)
 972     tentative_cc="cc -Wp,-H256000"
 973     ;;
 974   rs6000-*-lynxos*)
 975     # /bin/cc is less than useful for our purposes.  Always use GCC
 976     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 977     host_makefile_frag="config/mh-lynxrs6k"
 978     ;;
 979   powerpc-*-darwin*)
 980     host_makefile_frag="config/mh-ppc-darwin"
 981     ;;
 982   powerpc-*-aix*)
 983     host_makefile_frag="config/mh-ppc-aix"
 984     ;;
 985   rs6000-*-aix*)
 986     host_makefile_frag="config/mh-ppc-aix"
 987     ;;
 988   *-*-lynxos*)
 989     # /bin/cc is less than useful for our purposes.  Always use GCC
 990     tentative_cc="/bin/gcc"
 991     ;;
 992   *-*-sysv4*)
 993     host_makefile_frag="config/mh-sysv4"
 994     ;;
 995   # This is placed last to prevent interfering with the cases above.
 996   i[[3456789]]86-*-*)
 997     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 998     host_makefile_frag="config/mh-x86omitfp"
 999     ;;
1000 esac
1001 fi
1002
1003 # If we aren't going to be using gcc, see if we can extract a definition
1004 # of CC from the fragment.
1005 # Actually, use the 'pre-extracted' version above.
1006 if test -z "${CC}" && test "${build}" = "${host}" ; then
1007   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1008   found=
1009   for dir in $PATH; do
1010     test -z "$dir" && dir=.
1011     if test -f $dir/gcc; then
1012       found=yes
1013       break
1014     fi
1015   done
1016   IFS="$save_ifs"
1017   if test -z "${found}" && test -n "${tentative_cc}" ; then
1018     CC=$tentative_cc
1019   fi
1020 fi
1021
1022 if test "${build}" != "${host}" ; then
1023   # If we are doing a Canadian Cross, in which the host and build systems
1024   # are not the same, we set reasonable default values for the tools.
1025
1026   CC=${CC-${host_alias}-gcc}
1027   CFLAGS=${CFLAGS-"-g -O2"}
1028   CXX=${CXX-${host_alias}-c++}
1029   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1030   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1031
1032 else
1033   # Set reasonable default values for some tools even if not Canadian.
1034   # Of course, these are different reasonable default values, originally
1035   # specified directly in the Makefile.
1036   # We don't export, so that autoconf can do its job.
1037   # Note that all these settings are above the fragment inclusion point
1038   # in Makefile.in, so can still be overridden by fragments.
1039   # This is all going to change when we autoconfiscate...
1040
1041   CC_FOR_BUILD="\$(CC)"
1042   AC_PROG_CC
1043
1044   # We must set the default linker to the linker used by gcc for the correct
1045   # operation of libtool.  If LD is not defined and we are using gcc, try to
1046   # set the LD default to the ld used by gcc.
1047   if test -z "$LD"; then
1048     if test "$GCC" = yes; then
1049       case $build in
1050       *-*-mingw*)
1051         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1052       *)
1053         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1054       esac
1055       case $gcc_prog_ld in
1056       # Accept absolute paths.
1057       [[\\/]* | [A-Za-z]:[\\/]*)]
1058         LD="$gcc_prog_ld" ;;
1059       esac
1060     fi
1061   fi
1062
1063   CXX=${CXX-"c++"}
1064   CFLAGS=${CFLAGS-"-g"}
1065   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1066 fi
1067
1068 ACX_PROG_GNAT
1069 ACX_PROG_CMP_IGNORE_INITIAL
1070
1071 # Check for GMP and MPFR
1072 gmplibs=
1073 gmpinc=
1074 have_gmp=yes
1075 # Specify a location for mpfr
1076 # check for this first so it ends up on the link line before gmp.
1077 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1078
1079 if test "x$with_mpfr_dir" != x; then
1080   gmpinc="-I$with_mpfr_dir"
1081   gmplibs="$with_mpfr_dir/libmpfr.a"
1082 else
1083   gmplibs="-lmpfr"
1084 fi
1085
1086 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1087
1088 if test "x$with_mpfr" != x; then
1089   gmplibs="-L$with_mpfr/lib $gmplibs"
1090   gmpinc="-I$with_mpfr/include"
1091 fi
1092
1093 # Specify a location for gmp
1094 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1095
1096 if test "x$with_gmp_dir" != x; then
1097   gmpinc="$gmpinc -I$with_gmp_dir"
1098   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1099     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1100   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1101     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1102   fi
1103   # One of the later tests will catch the error if neither library is present.
1104 else
1105   gmplibs="$gmplibs -lgmp"
1106 fi
1107
1108 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1109
1110 if test "x$with_gmp" != x; then
1111   gmplibs="-L$with_gmp/lib $gmplibs"
1112   gmpinc="-I$with_gmp/include $gmpinc"
1113 fi
1114
1115 saved_CFLAGS="$CFLAGS"
1116 CFLAGS="$CFLAGS $gmpinc"
1117 # Check GMP actually works
1118 AC_MSG_CHECKING([for correct version of gmp.h])
1119 AC_TRY_COMPILE([#include "gmp.h"],[
1120 #if __GNU_MP_VERSION < 3
1121 choke me
1122 #endif
1123 ], [AC_MSG_RESULT([yes])],
1124   [AC_MSG_RESULT([no]); have_gmp=no])
1125
1126 if test x"$have_gmp" = xyes; then
1127   AC_MSG_CHECKING([for MPFR])
1128
1129   saved_LIBS="$LIBS"
1130   LIBS="$LIBS $gmplibs"
1131   AC_TRY_LINK([#include <gmp.h>
1132 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1133     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1134   LIBS="$saved_LIBS"
1135 fi
1136 CFLAGS="$saved_CFLAGS"
1137
1138 # Flags needed for both GMP and/or MPFR
1139 AC_SUBST(gmplibs)
1140 AC_SUBST(gmpinc)
1141
1142 # By default, C is the only stage 1 language.
1143 stage1_languages=c
1144 AC_SUBST(stage1_languages)
1145
1146 # Figure out what language subdirectories are present.
1147 # Look if the user specified --enable-languages="..."; if not, use
1148 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1149 # go away some day.
1150 # NB:  embedded tabs in this IF block -- do not untabify
1151 if test -d ${srcdir}/gcc; then
1152   if test x"${enable_languages+set}" != xset; then
1153     if test x"${LANGUAGES+set}" = xset; then
1154       enable_languages="${LANGUAGES}"
1155         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1156     else
1157       enable_languages=all
1158     fi
1159   else
1160     if test x"${enable_languages}" = x ||
1161        test x"${enable_languages}" = xyes;
1162        then
1163       echo configure.in: --enable-languages needs at least one language argument 1>&2
1164       exit 1
1165     fi
1166   fi
1167   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1168
1169   # 'f95' is the old name for the 'fortran' language. We issue a warning
1170   # and make the substitution.
1171   case ,${enable_languages}, in
1172     *,f95,*)
1173       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1174       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1175       ;;
1176   esac
1177
1178   # First scan to see if an enabled language requires some other language.
1179   # We assume that a given config-lang.in will list all the language
1180   # front ends it requires, even if some are required indirectly.
1181   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1182     case ${lang_frag} in
1183       ..) ;;
1184       # The odd quoting in the next line works around
1185       # an apparent bug in bash 1.12 on linux.
1186       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1187       *)
1188         # From the config-lang.in, get $language, $lang_requires
1189         language=
1190         lang_requires=
1191         . ${lang_frag}
1192         for other in ${lang_requires} ; do
1193           case ,${enable_languages}, in
1194             *,$other,*) ;;
1195             *,all,*) ;;
1196             *,$language,*)
1197               echo " \`$other' language required by \`$language'; enabling" 1>&2
1198               enable_languages="${enable_languages},${other}"
1199               ;;
1200           esac
1201         done
1202         ;;
1203     esac
1204   done
1205
1206   new_enable_languages=c
1207   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1208   potential_languages=c
1209
1210   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1211     case ${lang_frag} in
1212       ..) ;;
1213       # The odd quoting in the next line works around
1214       # an apparent bug in bash 1.12 on linux.
1215       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1216       *)
1217         # From the config-lang.in, get $language, $target_libs,
1218         # $lang_dirs, $boot_language, and $build_by_default
1219         language=
1220         target_libs=
1221         lang_dirs=
1222         subdir_requires=
1223         boot_language=
1224         build_by_default=
1225         need_gmp=
1226         . ${lang_frag}
1227         potential_languages="${potential_languages},${language}"
1228         # This is quite sensitive to the ordering of the case statement arms.
1229         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1230           *::*:*)
1231             echo "${lang_frag} doesn't set \$language." 1>&2
1232             exit 1
1233             ;;
1234           *:ada:no:*)
1235             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1236             add_this_lang=no
1237             ;;
1238           *,${language},*:*:*:*)
1239             # Language was explicitly selected; include it.
1240             add_this_lang=yes
1241             ;;
1242           *,all,*:*:*:no)
1243             # 'all' was selected, but this is not a default language
1244             # so do not include it.
1245             add_this_lang=no
1246             ;;
1247           *,all,*:*:*:*)
1248             # 'all' was selected and this is a default language; include it.
1249             add_this_lang=yes
1250             ;;
1251           *)
1252             add_this_lang=no
1253             ;;
1254         esac
1255
1256         # Disable languages that need other directories if these aren't available.
1257         for i in $subdir_requires .; do
1258           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1259           case ,${enable_languages}, in
1260             *,${language},*)
1261               # Specifically requested language; tell them.
1262               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1263               ;;
1264             *)
1265               # Silently disable.
1266               add_this_lang=no
1267               ;;
1268           esac
1269         done
1270
1271         # Disable languages that need GMP if it isn't available.
1272         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1273           *,${language},*:no:yes)
1274             # Specifically requested language; tell them.
1275             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1276             ;;
1277           *:no:yes)
1278             # Silently disable.
1279             add_this_lang=no
1280             ;;
1281         esac
1282
1283         # Disable a language that is unsupported by the target.
1284         case " $unsupported_languages " in
1285           *" $language "*)
1286             add_this_lang=no
1287             ;;
1288         esac
1289
1290         case $add_this_lang in
1291           no)
1292             # Remove language-dependent dirs.
1293             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1294             ;;
1295           *)
1296             new_enable_languages="$new_enable_languages,$language"
1297             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1298             case ${boot_language} in
1299               yes)
1300                 # Add to (comma-separated) list of stage 1 languages.
1301                 stage1_languages="${stage1_languages},${language}"
1302                 ;;
1303             esac
1304             ;;
1305         esac
1306         ;;
1307     esac
1308   done
1309
1310   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1311   if test "x$missing_languages" != x; then
1312     AC_MSG_ERROR([
1313 The following requested languages could not be built: ${missing_languages}
1314 Recognised languages are: ${potential_languages}])
1315   fi
1316
1317   if test "x$new_enable_languages" != "x$enable_languages"; then
1318     echo The following languages will be built: ${new_enable_languages}
1319   fi
1320   enable_languages="$new_enable_languages"
1321   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1322 fi
1323
1324 # Handle --disable-<component> generically.
1325 for dir in $configdirs $build_configdirs $target_configdirs ; do
1326   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1327   if eval test x\${enable_${dirname}} "=" xno ; then
1328     noconfigdirs="$noconfigdirs $dir"
1329   fi
1330 done
1331
1332 # Check for Boehm's garbage collector
1333 AC_ARG_ENABLE(objc-gc,
1334 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
1335                           the GNU Objective-C runtime.],
1336 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1337   *,objc,*:*:yes:*target-boehm-gc*)
1338     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1339     ;;
1340 esac])
1341
1342 # Make sure we only build Boehm's garbage collector if required.
1343 case ,${enable_languages},:${enable_objc_gc} in
1344   *,objc,*:yes)
1345     # Keep target-boehm-gc if requested for Objective-C.
1346     ;;
1347   *)
1348     # Otherwise remove target-boehm-gc depending on target-libjava.
1349     if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1350       noconfigdirs="$noconfigdirs target-boehm-gc"
1351     fi
1352     ;;
1353 esac
1354
1355 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1356 # $build_configdirs and $target_configdirs.
1357 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1358
1359 notsupp=""
1360 for dir in . $skipdirs $noconfigdirs ; do
1361   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1362   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1363     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1364     if test -r $srcdir/$dirname/configure ; then
1365       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1366         true
1367       else
1368         notsupp="$notsupp $dir"
1369       fi
1370     fi
1371   fi
1372   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1373     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1374     if test -r $srcdir/$dirname/configure ; then
1375       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1376         true
1377       else
1378         notsupp="$notsupp $dir"
1379       fi
1380     fi
1381   fi
1382   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1383     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1384     if test -r $srcdir/$dirname/configure ; then
1385       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1386         true
1387       else
1388         notsupp="$notsupp $dir"
1389       fi
1390     fi
1391   fi
1392 done
1393
1394 # Sometimes the tools are distributed with libiberty but with no other
1395 # libraries.  In that case, we don't want to build target-libiberty.
1396 if test -n "${target_configdirs}" ; then
1397   others=
1398   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1399     if test "$i" != "libiberty" ; then
1400       if test -r $srcdir/$i/configure ; then
1401         others=yes;
1402         break;
1403       fi
1404     fi
1405   done
1406   if test -z "${others}" ; then
1407     target_configdirs=
1408   fi
1409 fi
1410
1411 # Quietly strip out all directories which aren't configurable in this tree.
1412 # This relies on all configurable subdirectories being autoconfiscated, which
1413 # is now the case.
1414 build_configdirs_all="$build_configdirs"
1415 build_configdirs=
1416 for i in ${build_configdirs_all} ; do
1417   j=`echo $i | sed -e s/build-//g`
1418   if test -f ${srcdir}/$j/configure ; then
1419     build_configdirs="${build_configdirs} $i"
1420   fi
1421 done
1422
1423 configdirs_all="$configdirs"
1424 configdirs=
1425 for i in ${configdirs_all} ; do
1426   if test -f ${srcdir}/$i/configure ; then
1427     configdirs="${configdirs} $i"
1428   fi
1429 done
1430
1431 target_configdirs_all="$target_configdirs"
1432 target_configdirs=
1433 for i in ${target_configdirs_all} ; do
1434   j=`echo $i | sed -e s/target-//g`
1435   if test -f ${srcdir}/$j/configure ; then
1436     target_configdirs="${target_configdirs} $i"
1437   fi
1438 done
1439
1440 # Produce a warning message for the subdirs we can't configure.
1441 # This isn't especially interesting in the Cygnus tree, but in the individual
1442 # FSF releases, it's important to let people know when their machine isn't
1443 # supported by the one or two programs in a package.
1444
1445 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1446   # If $appdirs is non-empty, at least one of those directories must still
1447   # be configured, or we error out.  (E.g., if the gas release supports a
1448   # specified target in some subdirs but not the gas subdir, we shouldn't
1449   # pretend that all is well.)
1450   if test -n "$appdirs" ; then
1451     for dir in $appdirs ; do
1452       if test -r $dir/Makefile.in ; then
1453         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1454           appdirs=""
1455           break
1456         fi
1457         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1458           appdirs=""
1459           break
1460         fi
1461       fi
1462     done
1463     if test -n "$appdirs" ; then
1464       echo "*** This configuration is not supported by this package." 1>&2
1465       exit 1
1466     fi
1467   fi
1468   # Okay, some application will build, or we don't care to check.  Still
1469   # notify of subdirs not getting built.
1470   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1471   echo "    ${notsupp}" 1>&2
1472   echo "    (Any other directories should still work fine.)" 1>&2
1473 fi
1474
1475 case "$host" in
1476   *msdosdjgpp*)
1477     enable_gdbtk=no ;;
1478 esac
1479
1480 copy_dirs=
1481
1482 AC_ARG_WITH([build-sysroot],
1483   [  --with-build-sysroot=sysroot
1484                           use sysroot as the system root during the build],
1485   [if test x"$withval" != x ; then
1486      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1487    fi],
1488   [SYSROOT_CFLAGS_FOR_TARGET=])
1489 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1490
1491 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1492 # the named directory are copied to $(tooldir)/sys-include.
1493 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1494   if test x${is_cross_compiler} = xno ; then
1495     echo 1>&2 '***' --with-headers is only supported when cross compiling
1496     exit 1
1497   fi
1498   if test x"${with_headers}" != xyes ; then
1499     case "${exec_prefixoption}" in
1500     "") x=${prefix} ;;
1501     *) x=${exec_prefix} ;;
1502     esac
1503     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1504   fi
1505 fi
1506
1507 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1508 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1509 # are permitted.
1510 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1511   if test x${is_cross_compiler} = xno ; then
1512     echo 1>&2 '***' --with-libs is only supported when cross compiling
1513     exit 1
1514   fi
1515   if test x"${with_libs}" != xyes ; then
1516     # Copy the libraries in reverse order, so that files in the first named
1517     # library override files in subsequent libraries.
1518     case "${exec_prefixoption}" in
1519     "") x=${prefix} ;;
1520     *) x=${exec_prefix} ;;
1521     esac
1522     for l in ${with_libs}; do
1523       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1524     done
1525   fi
1526 fi
1527
1528 # Set with_gnu_as and with_gnu_ld as appropriate.
1529 #
1530 # This is done by determining whether or not the appropriate directory
1531 # is available, and by checking whether or not specific configurations
1532 # have requested that this magic not happen.
1533 #
1534 # The command line options always override the explicit settings in
1535 # configure.in, and the settings in configure.in override this magic.
1536 #
1537 # If the default for a toolchain is to use GNU as and ld, and you don't
1538 # want to do that, then you should use the --without-gnu-as and
1539 # --without-gnu-ld options for the configure script.
1540
1541 if test x${use_gnu_as} = x &&
1542    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1543   with_gnu_as=yes
1544   extra_host_args="$extra_host_args --with-gnu-as"
1545 fi
1546
1547 if test x${use_gnu_ld} = x &&
1548    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1549   with_gnu_ld=yes
1550   extra_host_args="$extra_host_args --with-gnu-ld"
1551 fi
1552
1553 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1554 # can detect this case.
1555
1556 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1557   with_newlib=yes
1558   extra_host_args="$extra_host_args --with-newlib"
1559 fi
1560
1561 # Handle ${copy_dirs}
1562 set fnord ${copy_dirs}
1563 shift
1564 while test $# != 0 ; do
1565   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1566     :
1567   else
1568     echo Copying $1 to $2
1569
1570     # Use the install script to create the directory and all required
1571     # parent directories.
1572     if test -d $2 ; then
1573       :
1574     else
1575       echo >config.temp
1576       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1577     fi
1578
1579     # Copy the directory, assuming we have tar.
1580     # FIXME: Should we use B in the second tar?  Not all systems support it.
1581     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1582
1583     # It is the responsibility of the user to correctly adjust all
1584     # symlinks.  If somebody can figure out how to handle them correctly
1585     # here, feel free to add the code.
1586
1587     echo $1 > $2/COPIED
1588   fi
1589   shift; shift
1590 done
1591
1592 # Determine a target-dependent exec_prefix that the installed
1593 # gcc will search in.  Keep this list sorted by triplet, with
1594 # the *-*-osname triplets last.
1595 md_exec_prefix=
1596 case "${target}" in
1597   alpha*-*-*vms*)
1598     md_exec_prefix=/gnu/lib/gcc-lib
1599     ;;
1600   i[34567]86-pc-msdosdjgpp*)
1601     md_exec_prefix=/dev/env/DJDIR/bin
1602     ;;
1603   i[34567]86-*-sco3.2v5*)
1604     if test $with_gnu_as = yes; then
1605       md_exec_prefix=/usr/gnu/bin
1606     else
1607       md_exec_prefix=/usr/ccs/bin/elf
1608     fi
1609     ;;
1610
1611   mn10300-*-* | \
1612   powerpc-*-chorusos* | \
1613   powerpc*-*-eabi* | \
1614   powerpc*-*-sysv* | \
1615   powerpc*-*-kaos* | \
1616   s390x-ibm-tpf*)
1617     md_exec_prefix=/usr/ccs/bin
1618     ;;
1619   sparc64-*-elf*)
1620     ;;
1621   v850*-*-*)
1622     md_exec_prefix=/usr/ccs/bin
1623     ;;
1624   xtensa-*-elf*)
1625     ;;
1626
1627   *-*-beos* | \
1628   *-*-elf* | \
1629   *-*-hpux* | \
1630   *-*-netware* | \
1631   *-*-nto-qnx* | \
1632   *-*-rtems* | \
1633   *-*-solaris2* | \
1634   *-*-sysv[45]* | \
1635   *-*-vxworks* | \
1636   *-wrs-windiss)
1637     md_exec_prefix=/usr/ccs/bin
1638     ;;
1639 esac
1640
1641 extra_arflags_for_target=
1642 extra_nmflags_for_target=
1643 extra_ranlibflags_for_target=
1644 target_makefile_frag=/dev/null
1645 case "${target}" in
1646   *-*-netware*)
1647     target_makefile_frag="config/mt-netware"
1648     ;;
1649   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1650     target_makefile_frag="config/mt-gnu"
1651     ;;
1652   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1653     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1654     # commands to handle both 32-bit and 64-bit objects.  These flags are
1655     # harmless if we're using GNU nm or ar.
1656     extra_arflags_for_target=" -X32_64"
1657     extra_nmflags_for_target=" -B -X32_64"
1658     ;;
1659   *-*-darwin*)
1660     # ranlib from Darwin requires the -c flag to look at common symbols.
1661     extra_ranlibflags_for_target=" -c"
1662     ;;
1663   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1664     target_makefile_frag="config/mt-wince"
1665     ;;
1666 esac
1667
1668 alphaieee_frag=/dev/null
1669 case $target in
1670   alpha*-*-*)
1671     # This just makes sure to use the -mieee option to build target libs.
1672     # This should probably be set individually by each library.
1673     alphaieee_frag="config/mt-alphaieee"
1674     ;;
1675 esac
1676
1677 # If --enable-target-optspace always use -Os instead of -O2 to build
1678 # the target libraries, similarly if it is not specified, use -Os
1679 # on selected platforms.
1680 ospace_frag=/dev/null
1681 case "${enable_target_optspace}:${target}" in
1682   yes:*)
1683     ospace_frag="config/mt-ospace"
1684     ;;
1685   :d30v-*)
1686     ospace_frag="config/mt-d30v"
1687     ;;
1688   :m32r-* | :d10v-* | :fr30-*)
1689     ospace_frag="config/mt-ospace"
1690     ;;
1691   no:* | :*)
1692     ;;
1693   *)
1694     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1695     ;;
1696 esac
1697
1698 # Default to using --with-stabs for certain targets.
1699 if test x${with_stabs} = x ; then
1700   case "${target}" in
1701   mips*-*-irix[[56]]*)
1702     ;;
1703   mips*-*-* | alpha*-*-osf*)
1704     with_stabs=yes;
1705     extra_host_args="${extra_host_args} --with-stabs"
1706     ;;
1707   esac
1708 fi
1709
1710 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1711 # them automatically.
1712 case "${host}" in
1713   hppa*64*-*-hpux11*)
1714     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1715     ;;
1716 esac
1717
1718 # Some systems (e.g., one of the i386-aix systems the gas testers are
1719 # using) don't handle "\$" correctly, so don't use it here.
1720 tooldir='${exec_prefix}'/${target_alias}
1721 build_tooldir=${tooldir}
1722
1723 # Create a .gdbinit file which runs the one in srcdir
1724 # and tells GDB to look there for source files.
1725
1726 if test -r ${srcdir}/.gdbinit ; then
1727   case ${srcdir} in
1728     .) ;;
1729     *) cat > ./.gdbinit <<EOF
1730 # ${NO_EDIT}
1731 dir ${srcdir}
1732 dir .
1733 source ${srcdir}/.gdbinit
1734 EOF
1735     ;;
1736   esac
1737 fi
1738
1739 # Make sure that the compiler is able to generate an executable.  If it
1740 # can't, we are probably in trouble.  We don't care whether we can run the
1741 # executable--we might be using a cross compiler--we only care whether it
1742 # can be created.  At this point the main configure script has set CC.
1743 we_are_ok=no
1744 echo "int main () { return 0; }" > conftest.c
1745 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1746 if test $? = 0 ; then
1747   if test -s conftest || test -s conftest.exe ; then
1748     we_are_ok=yes
1749   fi
1750 fi
1751 case $we_are_ok in
1752   no)
1753     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1754     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1755     rm -f conftest*
1756     exit 1
1757     ;;
1758 esac
1759 rm -f conftest*
1760
1761 # The Solaris /usr/ucb/cc compiler does not appear to work.
1762 case "${host}" in
1763   sparc-sun-solaris2*)
1764       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1765       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1766           could_use=
1767           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1768           if test -d /opt/cygnus/bin ; then
1769               if test "$could_use" = "" ; then
1770                   could_use="/opt/cygnus/bin"
1771               else
1772                   could_use="$could_use or /opt/cygnus/bin"
1773               fi
1774           fi
1775         if test "$could_use" = "" ; then
1776             echo "Warning: compilation may fail because you're using"
1777             echo "/usr/ucb/cc.  You should change your PATH or CC "
1778             echo "variable and rerun configure."
1779         else
1780             echo "Warning: compilation may fail because you're using"
1781             echo "/usr/ucb/cc, when you should use the C compiler from"
1782             echo "$could_use.  You should change your"
1783             echo "PATH or CC variable and rerun configure."
1784         fi
1785       fi
1786   ;;
1787 esac
1788
1789 case "${host}" in
1790   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1791   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1792   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1793 esac
1794
1795 # Record target_configdirs and the configure arguments for target and
1796 # build configuration in Makefile.
1797 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1798 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1799
1800 # Determine whether gdb needs tk/tcl or not.
1801 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1802 # and in that case we want gdb to be built without tk.  Ugh!
1803 # In fact I believe gdb is the *only* package directly dependent on tk,
1804 # so we should be able to put the 'maybe's in unconditionally and
1805 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1806 # 100% sure that that's safe though.
1807
1808 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1809 case "$enable_gdbtk" in
1810   no)
1811     GDB_TK="" ;;
1812   yes)
1813     GDB_TK="${gdb_tk}" ;;
1814   *)
1815     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1816     # distro.  Eventually someone will fix this and move Insight, nee
1817     # gdbtk to a separate directory.
1818     if test -d ${srcdir}/gdb/gdbtk ; then
1819       GDB_TK="${gdb_tk}"
1820     else
1821       GDB_TK=""
1822     fi
1823     ;;
1824 esac
1825 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1826 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1827
1828 # Strip out unwanted targets.
1829
1830 # While at that, we remove Makefiles if we were started for recursive
1831 # configuration, so that the top-level Makefile reconfigures them,
1832 # like we used to do when configure itself was recursive.
1833
1834 # Loop over modules.  $extrasub must be used with care, limiting as
1835 # much as possible the usage of range addresses.  That's because autoconf
1836 # splits the sed script to overcome limits in the number of commands,
1837 # and relying on carefully-timed sed passes may turn out to be very hard
1838 # to maintain later.  In this particular case, you just have to be careful
1839 # not to nest @if/@endif pairs, because configure will not warn you at all.
1840
1841 AC_ARG_ENABLE([bootstrap],
1842 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1843 enable_bootstrap=default)
1844
1845 # Issue errors and warnings for invalid/strange bootstrap combinations.
1846 case "$configdirs" in
1847   *gcc*) have_compiler=yes ;;
1848   *) have_compiler=no ;;
1849 esac
1850
1851 case "$have_compiler:$host:$target:$enable_bootstrap" in
1852   *:*:*:no) ;;
1853
1854   # Default behavior.  Enable bootstrap if we have a compiler
1855   # and we are in a native configuration.
1856   yes:$build:$build:default)
1857     enable_bootstrap=yes ;;
1858
1859   *:*:*:default)
1860     enable_bootstrap=no ;;
1861
1862   # We have a compiler and we are in a native configuration, bootstrap is ok
1863   yes:$build:$build:yes)
1864     ;;
1865
1866   # Other configurations, but we have a compiler.  Assume the user knows
1867   # what he's doing.
1868   yes:*:*:yes)
1869     AC_MSG_WARN([trying to bootstrap a cross compiler])
1870     ;;
1871
1872   # No compiler: if they passed --enable-bootstrap explicitly, fail
1873   no:*:*:yes)
1874     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1875
1876   # Fail if wrong command line
1877   *)
1878     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1879     ;;
1880 esac
1881
1882 # Adjust the toplevel makefile according to whether bootstrap was selected.
1883 case "$enable_bootstrap" in
1884   yes)
1885     bootstrap_suffix=bootstrap ;;
1886   no)
1887     bootstrap_suffix=no-bootstrap ;;
1888 esac
1889
1890 for module in ${build_configdirs} ; do
1891   if test -z "${no_recursion}" \
1892      && test -f ${build_subdir}/${module}/Makefile; then
1893     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1894     rm -f ${build_subdir}/${module}/Makefile
1895   fi
1896   extrasub="$extrasub
1897 /^@if build-$module\$/d
1898 /^@endif build-$module\$/d
1899 /^@if build-$module-$bootstrap_suffix\$/d
1900 /^@endif build-$module-$bootstrap_suffix\$/d"
1901 done
1902 for module in ${configdirs} ; do
1903   if test -z "${no_recursion}"; then
1904     for file in stage*-${module}/Makefile ${module}/Makefile; do
1905       if test -f ${file}; then
1906         echo 1>&2 "*** removing ${file} to force reconfigure"
1907         rm -f ${file}
1908       fi
1909     done
1910   fi
1911   extrasub="$extrasub
1912 /^@if $module\$/d
1913 /^@endif $module\$/d
1914 /^@if $module-$bootstrap_suffix\$/d
1915 /^@endif $module-$bootstrap_suffix\$/d"
1916 done
1917 for module in ${target_configdirs} ; do
1918   if test -z "${no_recursion}" \
1919      && test -f ${target_subdir}/${module}/Makefile; then
1920     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1921     rm -f ${target_subdir}/${module}/Makefile
1922   fi
1923   extrasub="$extrasub
1924 /^@if target-$module\$/d
1925 /^@endif target-$module\$/d
1926 /^@if target-$module-$bootstrap_suffix\$/d
1927 /^@endif target-$module-$bootstrap_suffix\$/d"
1928 done
1929
1930 extrasub="$extrasub
1931 /^@if /,/^@endif /d"
1932
1933 # Create the serialization dependencies.  This uses a temporary file.
1934
1935 AC_ARG_ENABLE([serial-configure],
1936 [  --enable-serial-[{host,target,build}-]configure
1937                           Force sequential configuration of
1938                           sub-packages for the host, target or build
1939                           machine, or all sub-packages])
1940
1941 case ${enable_serial_configure} in
1942   yes)
1943     enable_serial_build_configure=yes
1944     enable_serial_host_configure=yes
1945     enable_serial_target_configure=yes
1946     ;;
1947 esac
1948
1949 # These force 'configure's to be done one at a time, to avoid problems
1950 # with contention over a shared config.cache.
1951 rm -f serdep.tmp
1952 echo '# serdep.tmp' > serdep.tmp
1953 olditem=
1954 test "x${enable_serial_build_configure}" = xyes &&
1955 for item in ${build_configdirs} ; do
1956   case ${olditem} in
1957     "") ;;
1958     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1959   esac
1960   olditem=${item}
1961 done
1962 olditem=
1963 test "x${enable_serial_host_configure}" = xyes &&
1964 for item in ${configdirs} ; do
1965   case ${olditem} in
1966     "") ;;
1967     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1968   esac
1969   olditem=${item}
1970 done
1971 olditem=
1972 test "x${enable_serial_target_configure}" = xyes &&
1973 for item in ${target_configdirs} ; do
1974   case ${olditem} in
1975     "") ;;
1976     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1977   esac
1978   olditem=${item}
1979 done
1980 serialization_dependencies=serdep.tmp
1981 AC_SUBST_FILE(serialization_dependencies)
1982
1983 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1984 # target and nonopt.  These are the ones we might not want to pass
1985 # down to subconfigures.  Also strip program-prefix, program-suffix,
1986 # and program-transform-name, so that we can pass down a consistent
1987 # program-transform-name.  If autoconf has put single quotes around
1988 # any of these arguments (because they contain shell metacharacters)
1989 # then this will fail; in practice this only happens for
1990 # --program-transform-name, so be sure to override --program-transform-name
1991 # at the end of the argument list.
1992 # These will be expanded by make, so quote '$'.
1993 cat <<\EOF_SED > conftestsed
1994 s/ --no[[^ ]]*/ /g
1995 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1996 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1997 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1998 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1999 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
2000 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
2001 s/ -cache-file[[= ]][[^ ]]*//g
2002 s/ -srcdir[[= ]][[^ ]]*//g
2003 s/ -host[[= ]][[^ ]]*//g
2004 s/ -build[[= ]][[^ ]]*//g
2005 s/ -target[[= ]][[^ ]]*//g
2006 s/ -program-prefix[[= ]][[^ ]]*//g
2007 s/ -program-suffix[[= ]][[^ ]]*//g
2008 s/ -program-transform-name[[= ]][[^ ]]*//g
2009 s/ [[^' -][^ ]*] / /
2010 s/^ *//;s/ *$//
2011 s,\$,$$,g
2012 EOF_SED
2013 sed -f conftestsed <<EOF_SED > conftestsed.out
2014  ${ac_configure_args}
2015 EOF_SED
2016 baseargs=`cat conftestsed.out`
2017 rm -f conftestsed conftestsed.out
2018
2019 # Add in --program-transform-name, after --program-prefix and
2020 # --program-suffix have been applied to it.  Autoconf has already
2021 # doubled dollar signs and backslashes in program_transform_name; we want
2022 # the backslashes un-doubled, and then the entire thing wrapped in single
2023 # quotes, because this will be expanded first by make and then by the shell.
2024 # Also, because we want to override the logic in subdir configure scripts to
2025 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2026 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2027 ${program_transform_name}
2028 EOF_SED
2029 gcc_transform_name=`cat conftestsed.out`
2030 rm -f conftestsed.out
2031 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2032
2033 # For the build-side libraries, we just need to pretend we're native,
2034 # and not use the same cache file.  Multilibs are neither needed nor
2035 # desired.
2036 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
2037
2038 # For host modules, accept cache file option, or specification as blank.
2039 case "${cache_file}" in
2040 "") # empty
2041   cache_file_option="" ;;
2042 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2043   cache_file_option="--cache-file=${cache_file}" ;;
2044 *) # relative path
2045   cache_file_option="--cache-file=../${cache_file}" ;;
2046 esac
2047
2048 # Host dirs don't like to share a cache file either, horribly enough.
2049 # This seems to be due to autoconf 2.5x stupidity.
2050 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
2051
2052 target_configargs=${baseargs}
2053
2054 # Passing a --with-cross-host argument lets the target libraries know
2055 # whether they are being built with a cross-compiler or being built
2056 # native.  However, it would be better to use other mechanisms to make the
2057 # sorts of decisions they want to make on this basis.  Please consider
2058 # this option to be deprecated.  FIXME.
2059 if test x${is_cross_compiler} = xyes ; then
2060   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2061 fi
2062
2063 # Default to --enable-multilib.
2064 if test x${enable_multilib} = x ; then
2065   target_configargs="--enable-multilib ${target_configargs}"
2066 fi
2067
2068 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2069 # changed from the earlier setting of with_newlib.
2070 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2071   target_configargs="--with-newlib ${target_configargs}"
2072 fi
2073
2074 # Different target subdirs use different values of certain variables
2075 # (notably CXX).  Worse, multilibs use *lots* of different values.
2076 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2077 # it doesn't automatically accept command-line overrides of them.
2078 # This means it's not safe for target subdirs to share a cache file,
2079 # which is disgusting, but there you have it.  Hopefully this can be
2080 # fixed in future.  It's still worthwhile to use a cache file for each
2081 # directory.  I think.
2082
2083 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2084 # We need to pass --target, as newer autoconf's requires consistency
2085 # for target_alias and gcc doesn't manage it consistently.
2086 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2087
2088 FLAGS_FOR_TARGET=
2089 case " $target_configdirs " in
2090  *" newlib "*)
2091   case " $target_configargs " in
2092   *" --with-newlib "*)
2093    case "$target" in
2094    *-cygwin*)
2095      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' ;;
2096    esac
2097
2098    # If we're not building GCC, don't discard standard headers.
2099    if test -d ${srcdir}/gcc; then
2100      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2101
2102      if test "${build}" != "${host}"; then
2103        # On Canadian crosses, CC_FOR_TARGET will have already been set
2104        # by `configure', so we won't have an opportunity to add -Bgcc/
2105        # to it.  This is right: we don't want to search that directory
2106        # for binaries, but we want the header files in there, so add
2107        # them explicitly.
2108        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2109
2110        # Someone might think of using the pre-installed headers on
2111        # Canadian crosses, in case the installed compiler is not fully
2112        # compatible with the compiler being built.  In this case, it
2113        # would be better to flag an error than risking having
2114        # incompatible object files being constructed.  We can't
2115        # guarantee that an error will be flagged, but let's hope the
2116        # compiler will do it, when presented with incompatible header
2117        # files.
2118      fi
2119    fi
2120
2121    case "${target}-${is_cross_compiler}" in
2122    i[[3456789]]86-*-linux*-no)
2123       # Here host == target, so we don't need to build gcc,
2124       # so we don't want to discard standard headers.
2125       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2126       ;;
2127    *)
2128       # If we're building newlib, use its generic headers last, but search
2129       # for any libc-related directories first (so make it the last -B
2130       # switch).
2131       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2132       ;;
2133    esac
2134    ;;
2135   esac
2136   ;;
2137 esac
2138
2139 # Allow the user to override the flags for
2140 # our build compiler if desired.
2141 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2142
2143 # On Canadian crosses, we'll be searching the right directories for
2144 # the previously-installed cross compiler, so don't bother to add
2145 # flags for directories within the install tree of the compiler
2146 # being built; programs in there won't even run.
2147 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2148   # Search for pre-installed headers if nothing else fits.
2149   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2150 fi
2151
2152 if test "x${use_gnu_ld}" = x &&
2153    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2154   # Arrange for us to find uninstalled linker scripts.
2155   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2156 fi
2157
2158 # Search for other target-specific linker scripts and such.
2159 case "${target}" in
2160   m32c-*-* )
2161     if test -d ${srcdir}/libgloss/m32c; then
2162       # This is for crt0.o
2163       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2164       # This is for r8c.ld
2165       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2166       # This is for libnosys.a
2167       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2168     fi
2169     ;;
2170 esac
2171
2172 # Makefile fragments.
2173 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2174 do
2175   eval fragval=\$$frag
2176   if test $fragval != /dev/null; then
2177     eval $frag=${srcdir}/$fragval
2178   fi
2179 done
2180 AC_SUBST_FILE(host_makefile_frag)
2181 AC_SUBST_FILE(target_makefile_frag)
2182 AC_SUBST_FILE(alphaieee_frag)
2183 AC_SUBST_FILE(ospace_frag)
2184
2185 # Miscellanea: directories, flags, etc.
2186 AC_SUBST(RPATH_ENVVAR)
2187 AC_SUBST(tooldir)
2188 AC_SUBST(build_tooldir)
2189 AC_SUBST(CONFIGURE_GDB_TK)
2190 AC_SUBST(GDB_TK)
2191 AC_SUBST(INSTALL_GDB_TK)
2192
2193 # Build module lists & subconfigure args.
2194 AC_SUBST(build_configargs)
2195 AC_SUBST(build_configdirs)
2196
2197 # Host module lists & subconfigure args.
2198 AC_SUBST(host_configargs)
2199 AC_SUBST(configdirs)
2200
2201 # Target module lists & subconfigure args.
2202 AC_SUBST(target_configargs)
2203
2204
2205 # Build tools.
2206 AC_SUBST(CC_FOR_BUILD)
2207 AC_SUBST(config_shell)
2208
2209 # Generate default definitions for YACC, M4, LEX and other programs that run
2210 # on the build machine.  These are used if the Makefile can't locate these
2211 # programs in objdir.
2212 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2213
2214 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2215 case " $build_configdirs " in
2216   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2217   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2218 esac
2219
2220 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2221 case " $build_configdirs " in
2222   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2223 esac
2224
2225 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2226 case " $build_configdirs " in
2227   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2228 esac
2229
2230 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2231 case " $build_configdirs " in
2232   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2233   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2234 esac
2235
2236 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2237 case " $build_configdirs " in
2238   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2239 esac
2240
2241 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2242 case " $build_configdirs " in
2243   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2244   *)
2245 changequote(,)
2246     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2247     # higher, else we use the "missing" dummy.
2248     if ${MAKEINFO} --version \
2249        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2250       :
2251     else
2252       MAKEINFO="$MISSING makeinfo"
2253     fi
2254     ;;
2255 changequote([,])
2256 esac
2257
2258 # FIXME: expect and dejagnu may become build tools?
2259
2260 AC_CHECK_PROGS(EXPECT, expect, expect)
2261 case " $configdirs " in
2262   *" expect "*)
2263     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2264     ;;
2265 esac
2266
2267 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2268 case " $configdirs " in
2269   *" dejagnu "*)
2270     test $host = $build && RUNTEST='$$r/$(HOST_SUBDIR)/dejagnu/runtest'
2271     ;;
2272 esac
2273
2274
2275 # Host tools.
2276 NCN_STRICT_CHECK_TOOLS(AR, ar)
2277 NCN_STRICT_CHECK_TOOLS(AS, as)
2278 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2279 NCN_STRICT_CHECK_TOOLS(LD, ld)
2280 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2281 NCN_STRICT_CHECK_TOOLS(NM, nm)
2282 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2283 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2284 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2285 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2286 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2287 AC_SUBST(CC)
2288 AC_SUBST(CXX)
2289 AC_SUBST(CFLAGS)
2290 AC_SUBST(CFLAGS_FOR_BUILD)
2291 AC_SUBST(CXXFLAGS)
2292
2293 # Target tools.
2294 AC_ARG_WITH([build-time-tools],
2295   [  --with-build-time-tools=path
2296                           use given path to find target tools during the build],
2297   [case x"$withval" in
2298      x/*) ;;
2299      *)
2300        with_build_time_tools=
2301        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2302        ;;
2303    esac],
2304   [with_build_time_tools=])
2305
2306 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2307 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2308 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2309 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2310 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2311
2312 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2313 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2314 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2315 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2316 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2317 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2318 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2319 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2320 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2321 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2322
2323 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2324
2325 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2326 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2327 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2328 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2329                 [gcc/g++ -B$$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],
2330                 c++)
2331 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2332                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2333                 c++)
2334 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2335 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2336 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2337                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2338 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2339                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2340 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2341 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2342 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2343 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2344 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2345 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2346 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2347
2348 AC_SUBST(FLAGS_FOR_TARGET)
2349 AC_SUBST(RAW_CXX_FOR_TARGET)
2350
2351 # Certain tools may need extra flags.
2352 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2353 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2354 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2355
2356 # When building target libraries, except in a Canadian cross, we use
2357 # the same toolchain as the compiler we just built.
2358 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2359 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2360 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2361 if test $host = $build; then
2362   case " $configdirs " in
2363     *" gcc "*)
2364       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2365       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2366       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2367       ;;
2368   esac
2369 fi
2370
2371 AC_SUBST(COMPILER_AS_FOR_TARGET)
2372 AC_SUBST(COMPILER_LD_FOR_TARGET)
2373 AC_SUBST(COMPILER_NM_FOR_TARGET)
2374
2375 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2376 AC_ARG_ENABLE(maintainer-mode,
2377 [  --enable-maintainer-mode enable make rules and dependencies not useful
2378                           (and sometimes confusing) to the casual installer],
2379       USE_MAINTAINER_MODE=$enableval,
2380       USE_MAINTAINER_MODE=no)
2381 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2382 AC_SUBST(MAINTAINER_MODE_TRUE)
2383 AC_SUBST(MAINTAINER_MODE_FALSE)
2384 if test "$USE_MAINTAINER_MODE" = yes; then
2385   MAINTAINER_MODE_TRUE=
2386   MAINTAINER_MODE_FALSE='#'
2387 else
2388   MAINTAINER_MODE_TRUE='#'
2389   MAINTAINER_MODE_FALSE=
2390 fi
2391 MAINT=$MAINTAINER_MODE_TRUE
2392 AC_SUBST(MAINT)dnl
2393
2394 # ---------------------
2395 # GCC bootstrap support
2396 # ---------------------
2397
2398 # Stage specific cflags for build.
2399 stage1_cflags="-g"
2400 case $build in
2401   vax-*-*)
2402     case ${GCC} in
2403       yes) stage1_cflags="-g -Wa,-J" ;;
2404       *) stage1_cflags="-g -J" ;;
2405     esac ;;
2406   powerpc-*-darwin*)
2407     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2408     # sources; use -no-cpp-precomp to get to GNU cpp.
2409     # Apple's GCC has bugs in designated initializer handling, so disable
2410     # that too.
2411     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2412     ;;
2413 esac
2414 AC_SUBST(stage1_cflags)
2415
2416 # Enable -Werror in bootstrap stage2 and later.
2417 # Change the default to "no" on release branches.
2418 AC_ARG_ENABLE(werror,
2419 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2420 [enable_werror=yes])
2421 case ${enable_werror} in
2422   yes) stage2_werror_flag="--enable-werror-always" ;;
2423   *) stage2_werror_flag="" ;;
2424 esac
2425 AC_SUBST(stage2_werror_flag)
2426
2427 # Flags needed to enable html installing and building
2428 AC_ARG_WITH(datarootdir,
2429 [  --with-datarootdir   Use datarootdir as the data root directory.],
2430 [datarootdir="\${prefix}/${withval}"],
2431 [datarootdir="\${prefix}/share"])
2432
2433 AC_ARG_WITH(docdir,
2434 [  --with-docdir        Install documentation in this directory.],
2435 [docdir="\${prefix}/${withval}"],
2436 [docdir="\${datarootdir}/doc"])
2437
2438 AC_ARG_WITH(htmldir,
2439 [  --with-htmldir       Install html in this directory.],
2440 [htmldir="\${prefix}/${withval}"],
2441 [htmldir="\${docdir}"])
2442
2443 AC_SUBST(datarootdir)
2444 AC_SUBST(docdir)
2445 AC_SUBST(htmldir)
2446
2447 AC_OUTPUT(Makefile)