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 newlib"
 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-winsup"
 619     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 620     ;;
 621   *-*-cygwin*)
 622     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 623     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 624     # always build newlib if winsup directory is present.
 625     if test -d "$srcdir/winsup/cygwin"; then
 626       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 627     elif test -d "$srcdir/newlib"; then
 628       echo "Warning: winsup/cygwin is missing so newlib can't be built."
 629     fi
 630     ;;
 631   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 632   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 633     ;;
 634   i[[3456789]]86-*-pe)
 635     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 636     ;;
 637   i[[3456789]]86-*-sco3.2v5*)
 638     # The linker does not yet know about weak symbols in COFF,
 639     # and is not configured to handle mixed ELF and COFF.
 640     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 641     ;;
 642   i[[3456789]]86-*-sco*)
 643     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 644     ;;
 645   i[[3456789]]86-*-solaris2*)
 646     noconfigdirs="$noconfigdirs target-libgloss"
 647     ;;
 648   i[[3456789]]86-*-sysv4*)
 649     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 650     ;;
 651   i[[3456789]]86-*-beos*)
 652     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 653     ;;
 654   i[[3456789]]86-*-rdos*)
 655     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 656     ;;
 657   m32r-*-*)
 658     noconfigdirs="$noconfigdirs ${libgcj}"
 659     ;;
 660   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 661     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 662     ;;
 663   m68k-*-elf*)
 664     noconfigdirs="$noconfigdirs ${libgcj}"
 665     ;;
 666   m68k-*-coff*)
 667     noconfigdirs="$noconfigdirs ${libgcj}"
 668     ;;
 669   mcore-*-pe*)
 670   # The EPOC C++ environment does not support exceptions or rtti,
 671   # and so building libstdc++-v3 tends not to always work.
 672     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 673     ;;
 674   mmix-*-*)
 675     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 676     unsupported_languages="$unsupported_languages fortran java"
 677     ;;
 678   mn10200-*-*)
 679     noconfigdirs="$noconfigdirs ${libgcj}"
 680     ;;
 681   mn10300-*-*)
 682     noconfigdirs="$noconfigdirs ${libgcj}"
 683     ;;
 684   mt-*-*)
 685     noconfigdirs="$noconfigdirs sim"
 686     ;;
 687   powerpc-*-aix*)
 688     # copied from rs6000-*-* entry
 689     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 690     ;;
 691   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 692     target_configdirs="$target_configdirs target-winsup"
 693     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 694     # always build newlib.
 695     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 696     ;;
 697     # This is temporary until we can link against shared libraries
 698   powerpcle-*-solaris*)
 699     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 700     ;;
 701   powerpc-*-beos*)
 702     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 703     ;;
 704   powerpc-*-eabi)
 705     noconfigdirs="$noconfigdirs ${libgcj}"
 706     ;;
 707   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 708     ;;
 709   rs6000-*-lynxos*)
 710     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 711     ;;
 712   rs6000-*-aix*)
 713     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 714     ;;
 715   rs6000-*-*)
 716     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 717     ;;
 718   m68k-apollo-*)
 719     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 720     ;;
 721   mips*-*-irix5*)
 722     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 723     ;;
 724   mips*-*-irix6*)
 725     # Linking libjava exceeds command-line length limits on at least
 726     # IRIX 6.2, but not on IRIX 6.5.
 727     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 728     # <oldham@codesourcery.com>
 729     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 730     ;;
 731   mips*-*-bsd*)
 732     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 733     ;;
 734   mips64*-*-linux*)
 735     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 736     ;;
 737   mips*-*-linux*)
 738     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 739     ;;
 740   mips*-*-*)
 741     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 742     ;;
 743   romp-*-*)
 744     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 745     ;;
 746   sh-*-* | sh64-*-*)
 747     case "${host}" in
 748       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 749       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 750       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 751       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 752     esac
 753     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 754     ;;
 755   sparc-*-elf*)
 756     noconfigdirs="$noconfigdirs ${libgcj}"
 757     ;;
 758   sparc64-*-elf*)
 759     noconfigdirs="$noconfigdirs ${libgcj}"
 760     ;;
 761   sparclite-*-*)
 762     noconfigdirs="$noconfigdirs ${libgcj}"
 763     ;;
 764   sparc-*-sunos4*)
 765     noconfigdirs="$noconfigdirs ${libgcj}"
 766     if test x${is_cross_compiler} != xno ; then
 767            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 768     else
 769            use_gnu_ld=no
 770     fi
 771     ;;
 772   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 773     noconfigdirs="$noconfigdirs ${libgcj}"
 774     ;;
 775   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 776     ;;
 777   v810-*-*)
 778     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 779     ;;
 780   v850-*-*)
 781     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 782     ;;
 783   v850e-*-*)
 784     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 785     ;;
 786   v850ea-*-*)
 787     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 788     ;;
 789   vax-*-vms)
 790     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 791     ;;
 792   vax-*-*)
 793     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 794     ;;
 795   xtensa-*-*)
 796     noconfigdirs="$noconfigdirs ${libgcj}"
 797     ;;
 798   ip2k-*-*)
 799     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 800     ;;
 801   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 802     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 803     ;;
 804   *-*-lynxos*)
 805     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 806     ;;
 807   *-*-*)
 808     noconfigdirs="$noconfigdirs ${libgcj}"
 809     ;;
 810 esac
 811
 812 # If we aren't building newlib, then don't build libgloss, since libgloss
 813 # depends upon some newlib header files.
 814 case "${noconfigdirs}" in
 815   *target-libgloss*) ;;
 816   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 817 esac
 818
 819 # Work in distributions that contain no compiler tools, like Autoconf.
 820 tentative_cc=""
 821 host_makefile_frag=/dev/null
 822 if test -d ${srcdir}/config ; then
 823 case "${host}" in
 824   m68k-hp-hpux*)
 825     # Avoid "too much defining" errors from HPUX compiler.
 826     tentative_cc="cc -Wp,-H256000"
 827     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 828     # If it's HP/UX ar, this should be harmless.
 829     RANLIB="ar ts"
 830     ;;
 831   m68k-apollo-sysv*)
 832     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 833     ;;
 834   m68k-apollo-bsd*)
 835     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 836     # chokes on bfd, the compiler won't let you assign integers to enums, and
 837     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 838     # the apollo compiler" (the preferred version of GCC could be called cc,
 839     # or whatever), but I'm not sure leaving CC as cc is any better...
 840     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 841     # Used to have BISON=yacc.
 842     tentative_cc=gcc
 843     ;;
 844   m88k-dg-dgux*)
 845     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 846     ;;
 847   m88k-harris-cxux*)
 848     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 849     tentative_cc="cc -Xa"
 850     host_makefile_frag="config/mh-cxux"
 851     ;;
 852   m88k-motorola-sysv*)
 853     ;;
 854   mips*-dec-ultrix*)
 855     tentative_cc="cc -Wf,-XNg1000"
 856     host_makefile_frag="config/mh-decstation"
 857     ;;
 858   mips*-nec-sysv4*)
 859     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 860     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 861     host_makefile_frag="config/mh-necv4"
 862     ;;
 863   mips*-sgi-irix4*)
 864     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 865     # environment.  Also bump switch table size so that cp-parse will
 866     # compile.  Bump string length limit so linker builds.
 867     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 868     ;;
 869   mips*-*-sysv4*)
 870     host_makefile_frag="config/mh-sysv4"
 871     ;;
 872   mips*-*-sysv*)
 873     # This is for a MIPS running RISC/os 4.52C.
 874
 875     # This is needed for GDB, but needs to be in the top-level make because
 876     # if a library is compiled with the bsd headers and gets linked with the
 877     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 878     # a different size).
 879     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 880     # known except to select the sysv environment.  Could we use /proc instead?
 881     # These "sysv environments" and "bsd environments" often end up being a pain.
 882     #
 883     # This is not part of CFLAGS because perhaps not all C compilers have this
 884     # option.
 885     tentative_cc="cc -systype sysv"
 886     ;;
 887   i370-ibm-opened*)
 888     tentative_cc="c89"
 889     ;;
 890   i[[3456789]]86-*-sysv5*)
 891     host_makefile_frag="config/mh-sysv5"
 892     ;;
 893   i[[3456789]]86-*-dgux*)
 894     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 895     host_makefile_frag="config/mh-dgux386"
 896     ;;
 897   i[[3456789]]86-ncr-sysv4.3*)
 898     # The MetaWare compiler will generate a copyright message unless you
 899     # turn it off by adding the -Hnocopyr flag.
 900     tentative_cc="cc -Hnocopyr"
 901     ;;
 902   i[[3456789]]86-ncr-sysv4*)
 903     # for an NCR 3000 (i486/SVR4) system.
 904     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 905     # This compiler not only emits obnoxious copyright messages every time
 906     # you run it, but it chokes and dies on a whole bunch of GNU source
 907     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 908     tentative_cc="/usr/ccs/ATT/cc"
 909     host_makefile_frag="config/mh-ncr3000"
 910     ;;
 911   i[[3456789]]86-*-sco3.2v5*)
 912     ;;
 913   i[[3456789]]86-*-sco*)
 914     # The native C compiler botches some simple uses of const.  Unfortunately,
 915     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 916     tentative_cc="cc -Dconst="
 917     host_makefile_frag="config/mh-sco"
 918     ;;
 919   i[[3456789]]86-*-udk*)
 920     host_makefile_frag="config/mh-sysv5"
 921     ;;
 922   i[[3456789]]86-*-solaris2*)
 923     host_makefile_frag="config/mh-sysv4"
 924     ;;
 925   i[[3456789]]86-*-msdosdjgpp*)
 926     host_makefile_frag="config/mh-djgpp"
 927     ;;
 928   *-cygwin*)
 929     host_makefile_frag="config/mh-cygwin"
 930     ;;
 931   *-mingw32*)
 932     ;;
 933   *-interix*)
 934     host_makefile_frag="config/mh-interix"
 935     ;;
 936   vax-*-ultrix2*)
 937     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 938     tentative_cc=gcc
 939     ;;
 940   *-*-solaris2*)
 941     host_makefile_frag="config/mh-solaris"
 942     ;;
 943   m68k-sun-sunos*)
 944     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 945     # without overflowing the jump tables (-J says to use a 32 bit table)
 946     tentative_cc="cc -J"
 947     ;;
 948   *-hp-hpux*)
 949     tentative_cc="cc -Wp,-H256000"
 950     ;;
 951   *-*-hiux*)
 952     tentative_cc="cc -Wp,-H256000"
 953     ;;
 954   rs6000-*-lynxos*)
 955     # /bin/cc is less than useful for our purposes.  Always use GCC
 956     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 957     host_makefile_frag="config/mh-lynxrs6k"
 958     ;;
 959   powerpc-*-darwin*)
 960     host_makefile_frag="config/mh-ppc-darwin"
 961     ;;
 962   powerpc-*-aix*)
 963     host_makefile_frag="config/mh-ppc-aix"
 964     ;;
 965   rs6000-*-aix*)
 966     host_makefile_frag="config/mh-ppc-aix"
 967     ;;
 968   *-*-lynxos*)
 969     # /bin/cc is less than useful for our purposes.  Always use GCC
 970     tentative_cc="/bin/gcc"
 971     ;;
 972   *-*-sysv4*)
 973     host_makefile_frag="config/mh-sysv4"
 974     ;;
 975   # This is placed last to prevent interfering with the cases above.
 976   i[[3456789]]86-*-*)
 977     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 978     host_makefile_frag="config/mh-x86omitfp"
 979     ;;
 980 esac
 981 fi
 982
 983 # If we aren't going to be using gcc, see if we can extract a definition
 984 # of CC from the fragment.
 985 # Actually, use the 'pre-extracted' version above.
 986 if test -z "${CC}" && test "${build}" = "${host}" ; then
 987   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 988   found=
 989   for dir in $PATH; do
 990     test -z "$dir" && dir=.
 991     if test -f $dir/gcc; then
 992       found=yes
 993       break
 994     fi
 995   done
 996   IFS="$save_ifs"
 997   if test -z "${found}" && test -n "${tentative_cc}" ; then
 998     CC=$tentative_cc
 999   fi
1000 fi
1001
1002 if test "${build}" != "${host}" ; then
1003   # If we are doing a Canadian Cross, in which the host and build systems
1004   # are not the same, we set reasonable default values for the tools.
1005
1006   CC=${CC-${host_alias}-gcc}
1007   CFLAGS=${CFLAGS-"-g -O2"}
1008   CXX=${CXX-${host_alias}-c++}
1009   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1010   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1011
1012 else
1013   # Set reasonable default values for some tools even if not Canadian.
1014   # Of course, these are different reasonable default values, originally
1015   # specified directly in the Makefile.
1016   # We don't export, so that autoconf can do its job.
1017   # Note that all these settings are above the fragment inclusion point
1018   # in Makefile.in, so can still be overridden by fragments.
1019   # This is all going to change when we autoconfiscate...
1020
1021   CC_FOR_BUILD="\$(CC)"
1022   AC_PROG_CC
1023
1024   # We must set the default linker to the linker used by gcc for the correct
1025   # operation of libtool.  If LD is not defined and we are using gcc, try to
1026   # set the LD default to the ld used by gcc.
1027   if test -z "$LD"; then
1028     if test "$GCC" = yes; then
1029       case $build in
1030       *-*-mingw*)
1031         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1032       *)
1033         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1034       esac
1035       case $gcc_prog_ld in
1036       # Accept absolute paths.
1037       [[\\/]* | [A-Za-z]:[\\/]*)]
1038         LD="$gcc_prog_ld" ;;
1039       esac
1040     fi
1041   fi
1042
1043   CXX=${CXX-"c++"}
1044   CFLAGS=${CFLAGS-"-g"}
1045   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1046 fi
1047
1048 ACX_PROG_GNAT
1049 ACX_PROG_CMP_IGNORE_INITIAL
1050
1051 # Check for GMP and MPFR
1052 gmplibs=
1053 gmpinc=
1054 have_gmp=yes
1055 # Specify a location for mpfr
1056 # check for this first so it ends up on the link line before gmp.
1057 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1058
1059 if test "x$with_mpfr_dir" != x; then
1060   gmpinc="-I$with_mpfr_dir"
1061   gmplibs="$with_mpfr_dir/libmpfr.a"
1062 else
1063   gmplibs="-lmpfr"
1064 fi
1065
1066 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1067
1068 if test "x$with_mpfr" != x; then
1069   gmplibs="-L$with_mpfr/lib $gmplibs"
1070   gmpinc="-I$with_mpfr/include"
1071 fi
1072
1073 # Specify a location for gmp
1074 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1075
1076 if test "x$with_gmp_dir" != x; then
1077   gmpinc="$gmpinc -I$with_gmp_dir"
1078   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1079     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1080   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1081     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1082   fi
1083   # One of the later tests will catch the error if neither library is present.
1084 else
1085   gmplibs="$gmplibs -lgmp"
1086 fi
1087
1088 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1089
1090 if test "x$with_gmp" != x; then
1091   gmplibs="-L$with_gmp/lib $gmplibs"
1092   gmpinc="-I$with_gmp/include $gmpinc"
1093 fi
1094
1095 saved_CFLAGS="$CFLAGS"
1096 CFLAGS="$CFLAGS $gmpinc"
1097 # Check GMP actually works
1098 AC_MSG_CHECKING([for correct version of gmp.h])
1099 AC_TRY_COMPILE([#include "gmp.h"],[
1100 #if __GNU_MP_VERSION < 3
1101 choke me
1102 #endif
1103 ], [AC_MSG_RESULT([yes])],
1104   [AC_MSG_RESULT([no]); have_gmp=no])
1105
1106 if test x"$have_gmp" = xyes; then
1107   AC_MSG_CHECKING([for MPFR])
1108
1109   saved_LIBS="$LIBS"
1110   LIBS="$LIBS $gmplibs"
1111   AC_TRY_LINK([#include <gmp.h>
1112 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1113     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1114   LIBS="$saved_LIBS"
1115 fi
1116 CFLAGS="$saved_CFLAGS"
1117
1118 # Flags needed for both GMP and/or MPFR
1119 AC_SUBST(gmplibs)
1120 AC_SUBST(gmpinc)
1121
1122 # By default, C is the only stage 1 language.
1123 stage1_languages=c
1124 AC_SUBST(stage1_languages)
1125
1126 # Figure out what language subdirectories are present.
1127 # Look if the user specified --enable-languages="..."; if not, use
1128 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1129 # go away some day.
1130 # NB:  embedded tabs in this IF block -- do not untabify
1131 if test -d ${srcdir}/gcc; then
1132   if test x"${enable_languages+set}" != xset; then
1133     if test x"${LANGUAGES+set}" = xset; then
1134       enable_languages="${LANGUAGES}"
1135         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1136     else
1137       enable_languages=all
1138     fi
1139   else
1140     if test x"${enable_languages}" = x ||
1141        test x"${enable_languages}" = xyes;
1142        then
1143       echo configure.in: --enable-languages needs at least one language argument 1>&2
1144       exit 1
1145     fi
1146   fi
1147   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1148
1149   # 'f95' is the old name for the 'fortran' language. We issue a warning
1150   # and make the substitution.
1151   case ,${enable_languages}, in
1152     *,f95,*)
1153       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1154       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1155       ;;
1156   esac
1157
1158   # First scan to see if an enabled language requires some other language.
1159   # We assume that a given config-lang.in will list all the language
1160   # front ends it requires, even if some are required indirectly.
1161   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1162     case ${lang_frag} in
1163       ..) ;;
1164       # The odd quoting in the next line works around
1165       # an apparent bug in bash 1.12 on linux.
1166       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1167       *)
1168         # From the config-lang.in, get $language, $lang_requires
1169         language=
1170         lang_requires=
1171         . ${lang_frag}
1172         for other in ${lang_requires} ; do
1173           case ,${enable_languages}, in
1174             *,$other,*) ;;
1175             *,all,*) ;;
1176             *,$language,*)
1177               echo " \`$other' language required by \`$language'; enabling" 1>&2
1178               enable_languages="${enable_languages},${other}"
1179               ;;
1180           esac
1181         done
1182         ;;
1183     esac
1184   done
1185
1186   new_enable_languages=c
1187   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1188   potential_languages=c
1189
1190   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1191     case ${lang_frag} in
1192       ..) ;;
1193       # The odd quoting in the next line works around
1194       # an apparent bug in bash 1.12 on linux.
1195       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1196       *)
1197         # From the config-lang.in, get $language, $target_libs,
1198         # $lang_dirs, $boot_language, and $build_by_default
1199         language=
1200         target_libs=
1201         lang_dirs=
1202         subdir_requires=
1203         boot_language=
1204         build_by_default=
1205         need_gmp=
1206         . ${lang_frag}
1207         potential_languages="${potential_languages},${language}"
1208         # This is quite sensitive to the ordering of the case statement arms.
1209         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1210           *::*:*)
1211             echo "${lang_frag} doesn't set \$language." 1>&2
1212             exit 1
1213             ;;
1214           *:ada:no:*)
1215             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1216             add_this_lang=no
1217             ;;
1218           *,${language},*:*:*:*)
1219             # Language was explicitly selected; include it.
1220             add_this_lang=yes
1221             ;;
1222           *,all,*:*:*:no)
1223             # 'all' was selected, but this is not a default language
1224             # so do not include it.
1225             add_this_lang=no
1226             ;;
1227           *,all,*:*:*:*)
1228             # 'all' was selected and this is a default language; include it.
1229             add_this_lang=yes
1230             ;;
1231           *)
1232             add_this_lang=no
1233             ;;
1234         esac
1235
1236         # Disable languages that need other directories if these aren't available.
1237         for i in $subdir_requires; do
1238           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1239           case ,${enable_languages}, in
1240             *,${language},*)
1241               # Specifically requested language; tell them.
1242               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1243               ;;
1244             *)
1245               # Silently disable.
1246               add_this_lang=no
1247               ;;
1248           esac
1249         done
1250
1251         # Disable languages that need GMP if it isn't available.
1252         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1253           *,${language},*:no:yes)
1254             # Specifically requested language; tell them.
1255             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1256             ;;
1257           *:no:yes)
1258             # Silently disable.
1259             add_this_lang=no
1260             ;;
1261         esac
1262
1263         # Disable a language that is unsupported by the target.
1264         case " $unsupported_languages " in
1265           *" $language "*)
1266             add_this_lang=no
1267             ;;
1268         esac
1269
1270         case $add_this_lang in
1271           no)
1272             # Remove language-dependent dirs.
1273             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1274             ;;
1275           *)
1276             new_enable_languages="$new_enable_languages,$language"
1277             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1278             case ${boot_language} in
1279               yes)
1280                 # Add to (comma-separated) list of stage 1 languages.
1281                 stage1_languages="${stage1_languages},${language}"
1282                 ;;
1283             esac
1284             ;;
1285         esac
1286         ;;
1287     esac
1288   done
1289
1290   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1291   if test "x$missing_languages" != x; then
1292     AC_MSG_ERROR([
1293 The following requested languages could not be built: ${missing_languages}
1294 Recognised languages are: ${potential_languages}])
1295   fi
1296
1297   if test "x$new_enable_languages" != "x$enable_languages"; then
1298     echo The following languages will be built: ${new_enable_languages}
1299   fi
1300   enable_languages="$new_enable_languages"
1301   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1302 fi
1303
1304 # Handle --disable-<component> generically.
1305 for dir in $configdirs $build_configdirs $target_configdirs ; do
1306   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1307   if eval test x\${enable_${dirname}} "=" xno ; then
1308     noconfigdirs="$noconfigdirs $dir"
1309   fi
1310 done
1311
1312 # Check for Boehm's garbage collector
1313 AC_ARG_ENABLE(objc-gc,
1314 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
1315                           the GNU Objective-C runtime.],
1316 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1317   *,objc,*:*:yes:*target-boehm-gc*)
1318     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1319     ;;
1320 esac])
1321
1322 # Make sure we only build Boehm's garbage collector if required.
1323 case ,${enable_languages},:${enable_objc_gc} in
1324   *,objc,*:yes)
1325     # Keep target-boehm-gc if requested for Objective-C.
1326     ;;
1327   *)
1328     # Otherwise remove target-boehm-gc depending on target-libjava.
1329     if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1330       noconfigdirs="$noconfigdirs target-boehm-gc"
1331     fi
1332     ;;
1333 esac
1334
1335 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1336 # $build_configdirs and $target_configdirs.
1337 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1338
1339 notsupp=""
1340 for dir in . $skipdirs $noconfigdirs ; do
1341   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1342   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1343     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1344     if test -r $srcdir/$dirname/configure ; then
1345       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1346         true
1347       else
1348         notsupp="$notsupp $dir"
1349       fi
1350     fi
1351   fi
1352   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1353     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1354     if test -r $srcdir/$dirname/configure ; then
1355       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1356         true
1357       else
1358         notsupp="$notsupp $dir"
1359       fi
1360     fi
1361   fi
1362   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1363     target_configdirs=`echo " ${target_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 done
1373
1374 # Sometimes the tools are distributed with libiberty but with no other
1375 # libraries.  In that case, we don't want to build target-libiberty.
1376 if test -n "${target_configdirs}" ; then
1377   others=
1378   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1379     if test "$i" != "libiberty" ; then
1380       if test -r $srcdir/$i/configure ; then
1381         others=yes;
1382         break;
1383       fi
1384     fi
1385   done
1386   if test -z "${others}" ; then
1387     target_configdirs=
1388   fi
1389 fi
1390
1391 # Quietly strip out all directories which aren't configurable in this tree.
1392 # This relies on all configurable subdirectories being autoconfiscated, which
1393 # is now the case.
1394 build_configdirs_all="$build_configdirs"
1395 build_configdirs=
1396 for i in ${build_configdirs_all} ; do
1397   j=`echo $i | sed -e s/build-//g`
1398   if test -f ${srcdir}/$j/configure ; then
1399     build_configdirs="${build_configdirs} $i"
1400   fi
1401 done
1402
1403 configdirs_all="$configdirs"
1404 configdirs=
1405 for i in ${configdirs_all} ; do
1406   if test -f ${srcdir}/$i/configure ; then
1407     configdirs="${configdirs} $i"
1408   fi
1409 done
1410
1411 target_configdirs_all="$target_configdirs"
1412 target_configdirs=
1413 for i in ${target_configdirs_all} ; do
1414   j=`echo $i | sed -e s/target-//g`
1415   if test -f ${srcdir}/$j/configure ; then
1416     target_configdirs="${target_configdirs} $i"
1417   fi
1418 done
1419
1420 # Produce a warning message for the subdirs we can't configure.
1421 # This isn't especially interesting in the Cygnus tree, but in the individual
1422 # FSF releases, it's important to let people know when their machine isn't
1423 # supported by the one or two programs in a package.
1424
1425 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1426   # If $appdirs is non-empty, at least one of those directories must still
1427   # be configured, or we error out.  (E.g., if the gas release supports a
1428   # specified target in some subdirs but not the gas subdir, we shouldn't
1429   # pretend that all is well.)
1430   if test -n "$appdirs" ; then
1431     for dir in $appdirs ; do
1432       if test -r $dir/Makefile.in ; then
1433         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1434           appdirs=""
1435           break
1436         fi
1437         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1438           appdirs=""
1439           break
1440         fi
1441       fi
1442     done
1443     if test -n "$appdirs" ; then
1444       echo "*** This configuration is not supported by this package." 1>&2
1445       exit 1
1446     fi
1447   fi
1448   # Okay, some application will build, or we don't care to check.  Still
1449   # notify of subdirs not getting built.
1450   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1451   echo "    ${notsupp}" 1>&2
1452   echo "    (Any other directories should still work fine.)" 1>&2
1453 fi
1454
1455 case "$host" in
1456   *msdosdjgpp*)
1457     enable_gdbtk=no ;;
1458 esac
1459
1460 copy_dirs=
1461
1462 AC_ARG_WITH([build-sysroot],
1463   [  --with-build-sysroot=sysroot
1464                           use sysroot as the system root during the build],
1465   [if test x"$withval" != x ; then
1466      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1467    fi],
1468   [SYSROOT_CFLAGS_FOR_TARGET=])
1469 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1470
1471 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1472 # the named directory are copied to $(tooldir)/sys-include.
1473 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1474   if test x${is_cross_compiler} = xno ; then
1475     echo 1>&2 '***' --with-headers is only supported when cross compiling
1476     exit 1
1477   fi
1478   if test x"${with_headers}" != xyes ; then
1479     case "${exec_prefixoption}" in
1480     "") x=${prefix} ;;
1481     *) x=${exec_prefix} ;;
1482     esac
1483     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1484   fi
1485 fi
1486
1487 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1488 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1489 # are permitted.
1490 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1491   if test x${is_cross_compiler} = xno ; then
1492     echo 1>&2 '***' --with-libs is only supported when cross compiling
1493     exit 1
1494   fi
1495   if test x"${with_libs}" != xyes ; then
1496     # Copy the libraries in reverse order, so that files in the first named
1497     # library override files in subsequent libraries.
1498     case "${exec_prefixoption}" in
1499     "") x=${prefix} ;;
1500     *) x=${exec_prefix} ;;
1501     esac
1502     for l in ${with_libs}; do
1503       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1504     done
1505   fi
1506 fi
1507
1508 # Set with_gnu_as and with_gnu_ld as appropriate.
1509 #
1510 # This is done by determining whether or not the appropriate directory
1511 # is available, and by checking whether or not specific configurations
1512 # have requested that this magic not happen.
1513 #
1514 # The command line options always override the explicit settings in
1515 # configure.in, and the settings in configure.in override this magic.
1516 #
1517 # If the default for a toolchain is to use GNU as and ld, and you don't
1518 # want to do that, then you should use the --without-gnu-as and
1519 # --without-gnu-ld options for the configure script.
1520
1521 if test x${use_gnu_as} = x &&
1522    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1523   with_gnu_as=yes
1524   extra_host_args="$extra_host_args --with-gnu-as"
1525 fi
1526
1527 if test x${use_gnu_ld} = x &&
1528    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1529   with_gnu_ld=yes
1530   extra_host_args="$extra_host_args --with-gnu-ld"
1531 fi
1532
1533 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1534 # can detect this case.
1535
1536 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1537   with_newlib=yes
1538   extra_host_args="$extra_host_args --with-newlib"
1539 fi
1540
1541 # Handle ${copy_dirs}
1542 set fnord ${copy_dirs}
1543 shift
1544 while test $# != 0 ; do
1545   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1546     :
1547   else
1548     echo Copying $1 to $2
1549
1550     # Use the install script to create the directory and all required
1551     # parent directories.
1552     if test -d $2 ; then
1553       :
1554     else
1555       echo >config.temp
1556       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1557     fi
1558
1559     # Copy the directory, assuming we have tar.
1560     # FIXME: Should we use B in the second tar?  Not all systems support it.
1561     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1562
1563     # It is the responsibility of the user to correctly adjust all
1564     # symlinks.  If somebody can figure out how to handle them correctly
1565     # here, feel free to add the code.
1566
1567     echo $1 > $2/COPIED
1568   fi
1569   shift; shift
1570 done
1571
1572 # Determine a target-dependent exec_prefix that the installed
1573 # gcc will search in.  Keep this list sorted by triplet, with
1574 # the *-*-osname triplets last.
1575 md_exec_prefix=
1576 case "${target}" in
1577   alpha*-*-*vms*)
1578     md_exec_prefix=/gnu/lib/gcc-lib
1579     ;;
1580   i[34567]86-pc-msdosdjgpp*)
1581     md_exec_prefix=/dev/env/DJDIR/bin
1582     ;;
1583   i[34567]86-*-sco3.2v5*)
1584     if test $with_gnu_as = yes; then
1585       md_exec_prefix=/usr/gnu/bin
1586     else
1587       md_exec_prefix=/usr/ccs/bin/elf
1588     fi
1589     ;;
1590
1591   mn10300-*-* | \
1592   powerpc-*-chorusos* | \
1593   powerpc*-*-eabi* | \
1594   powerpc*-*-sysv* | \
1595   powerpc*-*-kaos* | \
1596   s390x-ibm-tpf*)
1597     md_exec_prefix=/usr/ccs/bin
1598     ;;
1599   sparc64-*-elf*)
1600     ;;
1601   v850*-*-*)
1602     md_exec_prefix=/usr/ccs/bin
1603     ;;
1604   xtensa-*-elf*)
1605     ;;
1606
1607   *-*-beos* | \
1608   *-*-elf* | \
1609   *-*-hpux* | \
1610   *-*-netware* | \
1611   *-*-nto-qnx* | \
1612   *-*-rtems* | \
1613   *-*-solaris2* | \
1614   *-*-sysv[45]* | \
1615   *-*-vxworks* | \
1616   *-wrs-windiss)
1617     md_exec_prefix=/usr/ccs/bin
1618     ;;
1619 esac
1620
1621 extra_arflags_for_target=
1622 extra_nmflags_for_target=
1623 extra_ranlibflags_for_target=
1624 target_makefile_frag=/dev/null
1625 case "${target}" in
1626   *-*-netware*)
1627     target_makefile_frag="config/mt-netware"
1628     ;;
1629   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1630     target_makefile_frag="config/mt-gnu"
1631     ;;
1632   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1633     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1634     # commands to handle both 32-bit and 64-bit objects.  These flags are
1635     # harmless if we're using GNU nm or ar.
1636     extra_arflags_for_target=" -X32_64"
1637     extra_nmflags_for_target=" -B -X32_64"
1638     ;;
1639   *-*-darwin*)
1640     # ranlib from Darwin requires the -c flag to look at common symbols.
1641     extra_ranlibflags_for_target=" -c"
1642     ;;
1643   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1644     target_makefile_frag="config/mt-wince"
1645     ;;
1646 esac
1647
1648 alphaieee_frag=/dev/null
1649 case $target in
1650   alpha*-*-*)
1651     # This just makes sure to use the -mieee option to build target libs.
1652     # This should probably be set individually by each library.
1653     alphaieee_frag="config/mt-alphaieee"
1654     ;;
1655 esac
1656
1657 # If --enable-target-optspace always use -Os instead of -O2 to build
1658 # the target libraries, similarly if it is not specified, use -Os
1659 # on selected platforms.
1660 ospace_frag=/dev/null
1661 case "${enable_target_optspace}:${target}" in
1662   yes:*)
1663     ospace_frag="config/mt-ospace"
1664     ;;
1665   :d30v-*)
1666     ospace_frag="config/mt-d30v"
1667     ;;
1668   :m32r-* | :d10v-* | :fr30-*)
1669     ospace_frag="config/mt-ospace"
1670     ;;
1671   no:* | :*)
1672     ;;
1673   *)
1674     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1675     ;;
1676 esac
1677
1678 # Default to using --with-stabs for certain targets.
1679 if test x${with_stabs} = x ; then
1680   case "${target}" in
1681   mips*-*-irix[[56]]*)
1682     ;;
1683   mips*-*-* | alpha*-*-osf*)
1684     with_stabs=yes;
1685     extra_host_args="${extra_host_args} --with-stabs"
1686     ;;
1687   esac
1688 fi
1689
1690 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1691 # them automatically.
1692 case "${host}" in
1693   hppa*64*-*-hpux11*)
1694     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1695     ;;
1696 esac
1697
1698 # Some systems (e.g., one of the i386-aix systems the gas testers are
1699 # using) don't handle "\$" correctly, so don't use it here.
1700 tooldir='${exec_prefix}'/${target_alias}
1701 build_tooldir=${tooldir}
1702
1703 # Create a .gdbinit file which runs the one in srcdir
1704 # and tells GDB to look there for source files.
1705
1706 if test -r ${srcdir}/.gdbinit ; then
1707   case ${srcdir} in
1708     .) ;;
1709     *) cat > ./.gdbinit <<EOF
1710 # ${NO_EDIT}
1711 dir ${srcdir}
1712 dir .
1713 source ${srcdir}/.gdbinit
1714 EOF
1715     ;;
1716   esac
1717 fi
1718
1719 # Make sure that the compiler is able to generate an executable.  If it
1720 # can't, we are probably in trouble.  We don't care whether we can run the
1721 # executable--we might be using a cross compiler--we only care whether it
1722 # can be created.  At this point the main configure script has set CC.
1723 we_are_ok=no
1724 echo "int main () { return 0; }" > conftest.c
1725 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1726 if test $? = 0 ; then
1727   if test -s conftest || test -s conftest.exe ; then
1728     we_are_ok=yes
1729   fi
1730 fi
1731 case $we_are_ok in
1732   no)
1733     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1734     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1735     rm -f conftest*
1736     exit 1
1737     ;;
1738 esac
1739 rm -f conftest*
1740
1741 # The Solaris /usr/ucb/cc compiler does not appear to work.
1742 case "${host}" in
1743   sparc-sun-solaris2*)
1744       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1745       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1746           could_use=
1747           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1748           if test -d /opt/cygnus/bin ; then
1749               if test "$could_use" = "" ; then
1750                   could_use="/opt/cygnus/bin"
1751               else
1752                   could_use="$could_use or /opt/cygnus/bin"
1753               fi
1754           fi
1755         if test "$could_use" = "" ; then
1756             echo "Warning: compilation may fail because you're using"
1757             echo "/usr/ucb/cc.  You should change your PATH or CC "
1758             echo "variable and rerun configure."
1759         else
1760             echo "Warning: compilation may fail because you're using"
1761             echo "/usr/ucb/cc, when you should use the C compiler from"
1762             echo "$could_use.  You should change your"
1763             echo "PATH or CC variable and rerun configure."
1764         fi
1765       fi
1766   ;;
1767 esac
1768
1769 case "${host}" in
1770   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1771   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1772   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1773 esac
1774
1775 # Record target_configdirs and the configure arguments for target and
1776 # build configuration in Makefile.
1777 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1778 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1779
1780 # Determine whether gdb needs tk/tcl or not.
1781 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1782 # and in that case we want gdb to be built without tk.  Ugh!
1783 # In fact I believe gdb is the *only* package directly dependent on tk,
1784 # so we should be able to put the 'maybe's in unconditionally and
1785 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1786 # 100% sure that that's safe though.
1787
1788 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1789 case "$enable_gdbtk" in
1790   no)
1791     GDB_TK="" ;;
1792   yes)
1793     GDB_TK="${gdb_tk}" ;;
1794   *)
1795     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1796     # distro.  Eventually someone will fix this and move Insight, nee
1797     # gdbtk to a separate directory.
1798     if test -d ${srcdir}/gdb/gdbtk ; then
1799       GDB_TK="${gdb_tk}"
1800     else
1801       GDB_TK=""
1802     fi
1803     ;;
1804 esac
1805 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1806 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1807
1808 # Strip out unwanted targets.
1809
1810 # While at that, we remove Makefiles if we were started for recursive
1811 # configuration, so that the top-level Makefile reconfigures them,
1812 # like we used to do when configure itself was recursive.
1813
1814 # Loop over modules.  $extrasub must be used with care, limiting as
1815 # much as possible the usage of range addresses.  That's because autoconf
1816 # splits the sed script to overcome limits in the number of commands,
1817 # and relying on carefully-timed sed passes may turn out to be very hard
1818 # to maintain later.  In this particular case, you just have to be careful
1819 # not to nest @if/@endif pairs, because configure will not warn you at all.
1820
1821 AC_ARG_ENABLE([bootstrap],
1822 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1823 enable_bootstrap=default)
1824
1825 # Issue errors and warnings for invalid/strange bootstrap combinations.
1826 case "$configdirs" in
1827   *gcc*) have_compiler=yes ;;
1828   *) have_compiler=no ;;
1829 esac
1830
1831 case "$have_compiler:$host:$target:$enable_bootstrap" in
1832   *:*:*:no) ;;
1833
1834   # Default behavior.  Enable bootstrap if we have a compiler
1835   # and we are in a native configuration.
1836   yes:$build:$build:default)
1837     enable_bootstrap=yes ;;
1838
1839   *:*:*:default)
1840     enable_bootstrap=no ;;
1841
1842   # We have a compiler and we are in a native configuration, bootstrap is ok
1843   yes:$build:$build:yes)
1844     ;;
1845
1846   # Other configurations, but we have a compiler.  Assume the user knows
1847   # what he's doing.
1848   yes:*:*:yes)
1849     AC_MSG_WARN([trying to bootstrap a cross compiler])
1850     ;;
1851
1852   # No compiler: if they passed --enable-bootstrap explicitly, fail
1853   no:*:*:yes)
1854     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1855
1856   # Fail if wrong command line
1857   *)
1858     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1859     ;;
1860 esac
1861
1862 # Adjust the toplevel makefile according to whether bootstrap was selected.
1863 case "$enable_bootstrap" in
1864   yes)
1865     bootstrap_suffix=bootstrap ;;
1866   no)
1867     bootstrap_suffix=no-bootstrap ;;
1868 esac
1869
1870 for module in ${build_configdirs} ; do
1871   if test -z "${no_recursion}" \
1872      && test -f ${build_subdir}/${module}/Makefile; then
1873     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1874     rm -f ${build_subdir}/${module}/Makefile
1875   fi
1876   extrasub="$extrasub
1877 /^@if build-$module\$/d
1878 /^@endif build-$module\$/d
1879 /^@if build-$module-$bootstrap_suffix\$/d
1880 /^@endif build-$module-$bootstrap_suffix\$/d"
1881 done
1882 for module in ${configdirs} ; do
1883   if test -z "${no_recursion}"; then
1884     for file in stage*-${module}/Makefile ${module}/Makefile; do
1885       if test -f ${file}; then
1886         echo 1>&2 "*** removing ${file} to force reconfigure"
1887         rm -f ${file}
1888       fi
1889     done
1890   fi
1891   extrasub="$extrasub
1892 /^@if $module\$/d
1893 /^@endif $module\$/d
1894 /^@if $module-$bootstrap_suffix\$/d
1895 /^@endif $module-$bootstrap_suffix\$/d"
1896 done
1897 for module in ${target_configdirs} ; do
1898   if test -z "${no_recursion}" \
1899      && test -f ${target_subdir}/${module}/Makefile; then
1900     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1901     rm -f ${target_subdir}/${module}/Makefile
1902   fi
1903   extrasub="$extrasub
1904 /^@if target-$module\$/d
1905 /^@endif target-$module\$/d
1906 /^@if target-$module-$bootstrap_suffix\$/d
1907 /^@endif target-$module-$bootstrap_suffix\$/d"
1908 done
1909
1910 extrasub="$extrasub
1911 /^@if /,/^@endif /d"
1912
1913 # Create the serialization dependencies.  This uses a temporary file.
1914
1915 AC_ARG_ENABLE([serial-configure],
1916 [  --enable-serial-[{host,target,build}-]configure
1917                           Force sequential configuration of
1918                           sub-packages for the host, target or build
1919                           machine, or all sub-packages])
1920
1921 case ${enable_serial_configure} in
1922   yes)
1923     enable_serial_build_configure=yes
1924     enable_serial_host_configure=yes
1925     enable_serial_target_configure=yes
1926     ;;
1927 esac
1928
1929 # These force 'configure's to be done one at a time, to avoid problems
1930 # with contention over a shared config.cache.
1931 rm -f serdep.tmp
1932 echo '# serdep.tmp' > serdep.tmp
1933 olditem=
1934 test "x${enable_serial_build_configure}" = xyes &&
1935 for item in ${build_configdirs} ; do
1936   case ${olditem} in
1937     "") ;;
1938     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1939   esac
1940   olditem=${item}
1941 done
1942 olditem=
1943 test "x${enable_serial_host_configure}" = xyes &&
1944 for item in ${configdirs} ; do
1945   case ${olditem} in
1946     "") ;;
1947     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1948   esac
1949   olditem=${item}
1950 done
1951 olditem=
1952 test "x${enable_serial_target_configure}" = xyes &&
1953 for item in ${target_configdirs} ; do
1954   case ${olditem} in
1955     "") ;;
1956     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1957   esac
1958   olditem=${item}
1959 done
1960 serialization_dependencies=serdep.tmp
1961 AC_SUBST_FILE(serialization_dependencies)
1962
1963 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1964 # target and nonopt.  These are the ones we might not want to pass
1965 # down to subconfigures.  Also strip program-prefix, program-suffix,
1966 # and program-transform-name, so that we can pass down a consistent
1967 # program-transform-name.  If autoconf has put single quotes around
1968 # any of these arguments (because they contain shell metacharacters)
1969 # then this will fail; in practice this only happens for
1970 # --program-transform-name, so be sure to override --program-transform-name
1971 # at the end of the argument list.
1972 # These will be expanded by make, so quote '$'.
1973 cat <<\EOF_SED > conftestsed
1974 s/ --no[[^ ]]*/ /g
1975 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1976 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1977 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1978 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1979 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1980 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1981 s/ -cache-file[[= ]][[^ ]]*//g
1982 s/ -srcdir[[= ]][[^ ]]*//g
1983 s/ -host[[= ]][[^ ]]*//g
1984 s/ -build[[= ]][[^ ]]*//g
1985 s/ -target[[= ]][[^ ]]*//g
1986 s/ -program-prefix[[= ]][[^ ]]*//g
1987 s/ -program-suffix[[= ]][[^ ]]*//g
1988 s/ -program-transform-name[[= ]][[^ ]]*//g
1989 s/ [[^' -][^ ]*] / /
1990 s/^ *//;s/ *$//
1991 s,\$,$$,g
1992 EOF_SED
1993 sed -f conftestsed <<EOF_SED > conftestsed.out
1994  ${ac_configure_args}
1995 EOF_SED
1996 baseargs=`cat conftestsed.out`
1997 rm -f conftestsed conftestsed.out
1998
1999 # Add in --program-transform-name, after --program-prefix and
2000 # --program-suffix have been applied to it.  Autoconf has already
2001 # doubled dollar signs and backslashes in program_transform_name; we want
2002 # the backslashes un-doubled, and then the entire thing wrapped in single
2003 # quotes, because this will be expanded first by make and then by the shell.
2004 # Also, because we want to override the logic in subdir configure scripts to
2005 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2006 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2007 ${program_transform_name}
2008 EOF_SED
2009 gcc_transform_name=`cat conftestsed.out`
2010 rm -f conftestsed.out
2011 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2012
2013 # For the build-side libraries, we just need to pretend we're native,
2014 # and not use the same cache file.  Multilibs are neither needed nor
2015 # desired.
2016 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
2017
2018 # For host modules, accept cache file option, or specification as blank.
2019 case "${cache_file}" in
2020 "") # empty
2021   cache_file_option="" ;;
2022 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2023   cache_file_option="--cache-file=${cache_file}" ;;
2024 *) # relative path
2025   cache_file_option="--cache-file=../${cache_file}" ;;
2026 esac
2027
2028 # Host dirs don't like to share a cache file either, horribly enough.
2029 # This seems to be due to autoconf 2.5x stupidity.
2030 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
2031
2032 target_configargs=${baseargs}
2033
2034 # Passing a --with-cross-host argument lets the target libraries know
2035 # whether they are being built with a cross-compiler or being built
2036 # native.  However, it would be better to use other mechanisms to make the
2037 # sorts of decisions they want to make on this basis.  Please consider
2038 # this option to be deprecated.  FIXME.
2039 if test x${is_cross_compiler} = xyes ; then
2040   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2041 fi
2042
2043 # Default to --enable-multilib.
2044 if test x${enable_multilib} = x ; then
2045   target_configargs="--enable-multilib ${target_configargs}"
2046 fi
2047
2048 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2049 # changed from the earlier setting of with_newlib.
2050 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2051   target_configargs="--with-newlib ${target_configargs}"
2052 fi
2053
2054 # Different target subdirs use different values of certain variables
2055 # (notably CXX).  Worse, multilibs use *lots* of different values.
2056 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2057 # it doesn't automatically accept command-line overrides of them.
2058 # This means it's not safe for target subdirs to share a cache file,
2059 # which is disgusting, but there you have it.  Hopefully this can be
2060 # fixed in future.  It's still worthwhile to use a cache file for each
2061 # directory.  I think.
2062
2063 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2064 # We need to pass --target, as newer autoconf's requires consistency
2065 # for target_alias and gcc doesn't manage it consistently.
2066 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2067
2068 FLAGS_FOR_TARGET=
2069 case " $target_configdirs " in
2070  *" newlib "*)
2071   case " $target_configargs " in
2072   *" --with-newlib "*)
2073    case "$target" in
2074    *-cygwin*)
2075      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' ;;
2076    esac
2077
2078    # If we're not building GCC, don't discard standard headers.
2079    if test -d ${srcdir}/gcc; then
2080      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2081
2082      if test "${build}" != "${host}"; then
2083        # On Canadian crosses, CC_FOR_TARGET will have already been set
2084        # by `configure', so we won't have an opportunity to add -Bgcc/
2085        # to it.  This is right: we don't want to search that directory
2086        # for binaries, but we want the header files in there, so add
2087        # them explicitly.
2088        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2089
2090        # Someone might think of using the pre-installed headers on
2091        # Canadian crosses, in case the installed compiler is not fully
2092        # compatible with the compiler being built.  In this case, it
2093        # would be better to flag an error than risking having
2094        # incompatible object files being constructed.  We can't
2095        # guarantee that an error will be flagged, but let's hope the
2096        # compiler will do it, when presented with incompatible header
2097        # files.
2098      fi
2099    fi
2100
2101    case "${target}-${is_cross_compiler}" in
2102    i[[3456789]]86-*-linux*-no)
2103       # Here host == target, so we don't need to build gcc,
2104       # so we don't want to discard standard headers.
2105       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2106       ;;
2107    *)
2108       # If we're building newlib, use its generic headers last, but search
2109       # for any libc-related directories first (so make it the last -B
2110       # switch).
2111       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2112       ;;
2113    esac
2114    ;;
2115   esac
2116   ;;
2117 esac
2118 case "$target" in
2119 *-mingw*)
2120   # Can't be handled as Cygwin above since Mingw does not use newlib.
2121   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include' ;;
2122 esac
2123
2124 # Allow the user to override the flags for
2125 # our build compiler if desired.
2126 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2127
2128 # On Canadian crosses, we'll be searching the right directories for
2129 # the previously-installed cross compiler, so don't bother to add
2130 # flags for directories within the install tree of the compiler
2131 # being built; programs in there won't even run.
2132 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2133   # Search for pre-installed headers if nothing else fits.
2134   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2135 fi
2136
2137 if test "x${use_gnu_ld}" = x &&
2138    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2139   # Arrange for us to find uninstalled linker scripts.
2140   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2141 fi
2142
2143 # Search for other target-specific linker scripts and such.
2144 case "${target}" in
2145   m32c-*-* )
2146     if test -d ${srcdir}/libgloss/m32c; then
2147       # This is for crt0.o
2148       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2149       # This is for r8c.ld
2150       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2151       # This is for libnosys.a
2152       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2153     fi
2154     ;;
2155 esac
2156
2157 # Makefile fragments.
2158 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2159 do
2160   eval fragval=\$$frag
2161   if test $fragval != /dev/null; then
2162     eval $frag=${srcdir}/$fragval
2163   fi
2164 done
2165 AC_SUBST_FILE(host_makefile_frag)
2166 AC_SUBST_FILE(target_makefile_frag)
2167 AC_SUBST_FILE(alphaieee_frag)
2168 AC_SUBST_FILE(ospace_frag)
2169
2170 # Miscellanea: directories, flags, etc.
2171 AC_SUBST(RPATH_ENVVAR)
2172 AC_SUBST(tooldir)
2173 AC_SUBST(build_tooldir)
2174 AC_SUBST(CONFIGURE_GDB_TK)
2175 AC_SUBST(GDB_TK)
2176 AC_SUBST(INSTALL_GDB_TK)
2177
2178 # Build module lists & subconfigure args.
2179 AC_SUBST(build_configargs)
2180 AC_SUBST(build_configdirs)
2181
2182 # Host module lists & subconfigure args.
2183 AC_SUBST(host_configargs)
2184 AC_SUBST(configdirs)
2185
2186 # Target module lists & subconfigure args.
2187 AC_SUBST(target_configargs)
2188
2189
2190 # Build tools.
2191 AC_SUBST(CC_FOR_BUILD)
2192 AC_SUBST(config_shell)
2193
2194 # Generate default definitions for YACC, M4, LEX and other programs that run
2195 # on the build machine.  These are used if the Makefile can't locate these
2196 # programs in objdir.
2197 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2198
2199 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2200 case " $build_configdirs " in
2201   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2202   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2203 esac
2204
2205 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2206 case " $build_configdirs " in
2207   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2208 esac
2209
2210 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2211 case " $build_configdirs " in
2212   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2213 esac
2214
2215 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2216 case " $build_configdirs " in
2217   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2218   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2219 esac
2220
2221 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2222 case " $build_configdirs " in
2223   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2224 esac
2225
2226 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2227 case " $build_configdirs " in
2228   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2229   *)
2230 changequote(,)
2231     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2232     # higher, else we use the "missing" dummy.
2233     if ${MAKEINFO} --version \
2234        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2235       :
2236     else
2237       MAKEINFO="$MISSING makeinfo"
2238     fi
2239     ;;
2240 changequote([,])
2241 esac
2242
2243 # FIXME: expect and dejagnu may become build tools?
2244
2245 AC_CHECK_PROGS(EXPECT, expect, expect)
2246 case " $configdirs " in
2247   *" expect "*)
2248     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2249     ;;
2250 esac
2251
2252 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2253 case " $configdirs " in
2254   *" dejagnu "*)
2255     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2256     ;;
2257 esac
2258
2259
2260 # Host tools.
2261 NCN_STRICT_CHECK_TOOLS(AR, ar)
2262 NCN_STRICT_CHECK_TOOLS(AS, as)
2263 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2264 NCN_STRICT_CHECK_TOOLS(LD, ld)
2265 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2266 NCN_STRICT_CHECK_TOOLS(NM, nm)
2267 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2268 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2269 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2270 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2271 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2272 AC_SUBST(CC)
2273 AC_SUBST(CXX)
2274 AC_SUBST(CFLAGS)
2275 AC_SUBST(CFLAGS_FOR_BUILD)
2276 AC_SUBST(CXXFLAGS)
2277
2278 # Target tools.
2279 AC_ARG_WITH([build-time-tools],
2280   [  --with-build-time-tools=path
2281                           use given path to find target tools during the build],
2282   [case x"$withval" in
2283      x/*) ;;
2284      *)
2285        with_build_time_tools=
2286        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2287        ;;
2288    esac],
2289   [with_build_time_tools=])
2290
2291 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2292 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2293 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2294 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2295 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2296
2297 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2298 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2299 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2300 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2301 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2302 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2303 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2304 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2305 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2306 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2307
2308 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2309
2310 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2311 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2312 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2313 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2314                 [gcc/g++ -B$$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],
2315                 c++)
2316 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2317                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2318                 c++)
2319 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2320 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2321 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2322                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2323 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2324                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2325 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2326 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2327 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2328 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2329 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2330 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2331 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2332
2333 AC_SUBST(FLAGS_FOR_TARGET)
2334 AC_SUBST(RAW_CXX_FOR_TARGET)
2335
2336 # Certain tools may need extra flags.
2337 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2338 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2339 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2340
2341 # When building target libraries, except in a Canadian cross, we use
2342 # the same toolchain as the compiler we just built.
2343 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2344 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2345 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2346 if test $host = $build; then
2347   case " $configdirs " in
2348     *" gcc "*)
2349       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2350       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2351       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2352       ;;
2353   esac
2354 fi
2355
2356 AC_SUBST(COMPILER_AS_FOR_TARGET)
2357 AC_SUBST(COMPILER_LD_FOR_TARGET)
2358 AC_SUBST(COMPILER_NM_FOR_TARGET)
2359
2360 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2361 AC_ARG_ENABLE(maintainer-mode,
2362 [  --enable-maintainer-mode enable make rules and dependencies not useful
2363                           (and sometimes confusing) to the casual installer],
2364       USE_MAINTAINER_MODE=$enableval,
2365       USE_MAINTAINER_MODE=no)
2366 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2367 AC_SUBST(MAINTAINER_MODE_TRUE)
2368 AC_SUBST(MAINTAINER_MODE_FALSE)
2369 if test "$USE_MAINTAINER_MODE" = yes; then
2370   MAINTAINER_MODE_TRUE=
2371   MAINTAINER_MODE_FALSE='#'
2372 else
2373   MAINTAINER_MODE_TRUE='#'
2374   MAINTAINER_MODE_FALSE=
2375 fi
2376 MAINT=$MAINTAINER_MODE_TRUE
2377 AC_SUBST(MAINT)dnl
2378
2379 # ---------------------
2380 # GCC bootstrap support
2381 # ---------------------
2382
2383 # Stage specific cflags for build.
2384 stage1_cflags="-g"
2385 case $build in
2386   vax-*-*)
2387     case ${GCC} in
2388       yes) stage1_cflags="-g -Wa,-J" ;;
2389       *) stage1_cflags="-g -J" ;;
2390     esac ;;
2391   powerpc-*-darwin*)
2392     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2393     # sources; use -no-cpp-precomp to get to GNU cpp.
2394     # Apple's GCC has bugs in designated initializer handling, so disable
2395     # that too.
2396     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2397     ;;
2398 esac
2399
2400 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
2401 if test "$GCC" = yes; then
2402   saved_CFLAGS="$CFLAGS"
2403
2404   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
2405   CFLAGS="$CFLAGS -fkeep-inline-functions"
2406   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
2407   AC_TRY_COMPILE(,,
2408     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
2409     [AC_MSG_RESULT([no])])
2410
2411   CFLAGS="$saved_CFLAGS"
2412 fi
2413
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)