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* | i[[3456789]]86-*-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 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   spu-*-*)
 778     skipdirs="target-libssp"
 779     ;;
 780   v810-*-*)
 781     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 782     ;;
 783   v850-*-*)
 784     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 785     ;;
 786   v850e-*-*)
 787     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 788     ;;
 789   v850ea-*-*)
 790     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 791     ;;
 792   vax-*-vms)
 793     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 794     ;;
 795   vax-*-*)
 796     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 797     ;;
 798   xtensa-*-*)
 799     noconfigdirs="$noconfigdirs ${libgcj}"
 800     ;;
 801   ip2k-*-*)
 802     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 803     ;;
 804   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 805     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 806     ;;
 807   *-*-lynxos*)
 808     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 809     ;;
 810   *-*-*)
 811     noconfigdirs="$noconfigdirs ${libgcj}"
 812     ;;
 813 esac
 814
 815 # If we aren't building newlib, then don't build libgloss, since libgloss
 816 # depends upon some newlib header files.
 817 case "${noconfigdirs}" in
 818   *target-libgloss*) ;;
 819   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 820 esac
 821
 822 # Work in distributions that contain no compiler tools, like Autoconf.
 823 tentative_cc=""
 824 host_makefile_frag=/dev/null
 825 if test -d ${srcdir}/config ; then
 826 case "${host}" in
 827   m68k-hp-hpux*)
 828     # Avoid "too much defining" errors from HPUX compiler.
 829     tentative_cc="cc -Wp,-H256000"
 830     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 831     # If it's HP/UX ar, this should be harmless.
 832     RANLIB="ar ts"
 833     ;;
 834   m68k-apollo-sysv*)
 835     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 836     ;;
 837   m68k-apollo-bsd*)
 838     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 839     # chokes on bfd, the compiler won't let you assign integers to enums, and
 840     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 841     # the apollo compiler" (the preferred version of GCC could be called cc,
 842     # or whatever), but I'm not sure leaving CC as cc is any better...
 843     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 844     # Used to have BISON=yacc.
 845     tentative_cc=gcc
 846     ;;
 847   m88k-dg-dgux*)
 848     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 849     ;;
 850   m88k-harris-cxux*)
 851     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 852     tentative_cc="cc -Xa"
 853     host_makefile_frag="config/mh-cxux"
 854     ;;
 855   m88k-motorola-sysv*)
 856     ;;
 857   mips*-dec-ultrix*)
 858     tentative_cc="cc -Wf,-XNg1000"
 859     host_makefile_frag="config/mh-decstation"
 860     ;;
 861   mips*-nec-sysv4*)
 862     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 863     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 864     host_makefile_frag="config/mh-necv4"
 865     ;;
 866   mips*-sgi-irix4*)
 867     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 868     # environment.  Also bump switch table size so that cp-parse will
 869     # compile.  Bump string length limit so linker builds.
 870     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 871     ;;
 872   mips*-*-sysv4*)
 873     host_makefile_frag="config/mh-sysv4"
 874     ;;
 875   mips*-*-sysv*)
 876     # This is for a MIPS running RISC/os 4.52C.
 877
 878     # This is needed for GDB, but needs to be in the top-level make because
 879     # if a library is compiled with the bsd headers and gets linked with the
 880     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 881     # a different size).
 882     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 883     # known except to select the sysv environment.  Could we use /proc instead?
 884     # These "sysv environments" and "bsd environments" often end up being a pain.
 885     #
 886     # This is not part of CFLAGS because perhaps not all C compilers have this
 887     # option.
 888     tentative_cc="cc -systype sysv"
 889     ;;
 890   i370-ibm-opened*)
 891     tentative_cc="c89"
 892     ;;
 893   i[[3456789]]86-*-sysv5*)
 894     host_makefile_frag="config/mh-sysv5"
 895     ;;
 896   i[[3456789]]86-*-dgux*)
 897     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 898     host_makefile_frag="config/mh-dgux386"
 899     ;;
 900   i[[3456789]]86-ncr-sysv4.3*)
 901     # The MetaWare compiler will generate a copyright message unless you
 902     # turn it off by adding the -Hnocopyr flag.
 903     tentative_cc="cc -Hnocopyr"
 904     ;;
 905   i[[3456789]]86-ncr-sysv4*)
 906     # for an NCR 3000 (i486/SVR4) system.
 907     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 908     # This compiler not only emits obnoxious copyright messages every time
 909     # you run it, but it chokes and dies on a whole bunch of GNU source
 910     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 911     tentative_cc="/usr/ccs/ATT/cc"
 912     host_makefile_frag="config/mh-ncr3000"
 913     ;;
 914   i[[3456789]]86-*-sco3.2v5*)
 915     ;;
 916   i[[3456789]]86-*-sco*)
 917     # The native C compiler botches some simple uses of const.  Unfortunately,
 918     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 919     tentative_cc="cc -Dconst="
 920     host_makefile_frag="config/mh-sco"
 921     ;;
 922   i[[3456789]]86-*-udk*)
 923     host_makefile_frag="config/mh-sysv5"
 924     ;;
 925   i[[3456789]]86-*-solaris2*)
 926     host_makefile_frag="config/mh-sysv4"
 927     ;;
 928   i[[3456789]]86-*-msdosdjgpp*)
 929     host_makefile_frag="config/mh-djgpp"
 930     ;;
 931   *-cygwin*)
 932     host_makefile_frag="config/mh-cygwin"
 933     ;;
 934   *-mingw32*)
 935     ;;
 936   *-interix*)
 937     host_makefile_frag="config/mh-interix"
 938     ;;
 939   vax-*-ultrix2*)
 940     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 941     tentative_cc=gcc
 942     ;;
 943   *-*-solaris2*)
 944     host_makefile_frag="config/mh-solaris"
 945     ;;
 946   m68k-sun-sunos*)
 947     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 948     # without overflowing the jump tables (-J says to use a 32 bit table)
 949     tentative_cc="cc -J"
 950     ;;
 951   *-hp-hpux*)
 952     tentative_cc="cc -Wp,-H256000"
 953     ;;
 954   *-*-hiux*)
 955     tentative_cc="cc -Wp,-H256000"
 956     ;;
 957   rs6000-*-lynxos*)
 958     # /bin/cc is less than useful for our purposes.  Always use GCC
 959     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 960     host_makefile_frag="config/mh-lynxrs6k"
 961     ;;
 962   powerpc-*-darwin*)
 963     host_makefile_frag="config/mh-ppc-darwin"
 964     ;;
 965   powerpc-*-aix*)
 966     host_makefile_frag="config/mh-ppc-aix"
 967     ;;
 968   rs6000-*-aix*)
 969     host_makefile_frag="config/mh-ppc-aix"
 970     ;;
 971   *-*-lynxos*)
 972     # /bin/cc is less than useful for our purposes.  Always use GCC
 973     tentative_cc="/bin/gcc"
 974     ;;
 975   *-*-sysv4*)
 976     host_makefile_frag="config/mh-sysv4"
 977     ;;
 978   # This is placed last to prevent interfering with the cases above.
 979   i[[3456789]]86-*-*)
 980     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 981     host_makefile_frag="config/mh-x86omitfp"
 982     ;;
 983 esac
 984 fi
 985
 986 # If we aren't going to be using gcc, see if we can extract a definition
 987 # of CC from the fragment.
 988 # Actually, use the 'pre-extracted' version above.
 989 if test -z "${CC}" && test "${build}" = "${host}" ; then
 990   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 991   found=
 992   for dir in $PATH; do
 993     test -z "$dir" && dir=.
 994     if test -f $dir/gcc; then
 995       found=yes
 996       break
 997     fi
 998   done
 999   IFS="$save_ifs"
1000   if test -z "${found}" && test -n "${tentative_cc}" ; then
1001     CC=$tentative_cc
1002   fi
1003 fi
1004
1005 if test "${build}" != "${host}" ; then
1006   # If we are doing a Canadian Cross, in which the host and build systems
1007   # are not the same, we set reasonable default values for the tools.
1008
1009   CC=${CC-${host_alias}-gcc}
1010   CFLAGS=${CFLAGS-"-g -O2"}
1011   CXX=${CXX-${host_alias}-c++}
1012   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1013   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1014
1015 else
1016   # Set reasonable default values for some tools even if not Canadian.
1017   # Of course, these are different reasonable default values, originally
1018   # specified directly in the Makefile.
1019   # We don't export, so that autoconf can do its job.
1020   # Note that all these settings are above the fragment inclusion point
1021   # in Makefile.in, so can still be overridden by fragments.
1022   # This is all going to change when we autoconfiscate...
1023
1024   CC_FOR_BUILD="\$(CC)"
1025   AC_PROG_CC
1026
1027   # We must set the default linker to the linker used by gcc for the correct
1028   # operation of libtool.  If LD is not defined and we are using gcc, try to
1029   # set the LD default to the ld used by gcc.
1030   if test -z "$LD"; then
1031     if test "$GCC" = yes; then
1032       case $build in
1033       *-*-mingw*)
1034         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1035       *)
1036         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1037       esac
1038       case $gcc_prog_ld in
1039       # Accept absolute paths.
1040       [[\\/]* | [A-Za-z]:[\\/]*)]
1041         LD="$gcc_prog_ld" ;;
1042       esac
1043     fi
1044   fi
1045
1046   CXX=${CXX-"c++"}
1047   CFLAGS=${CFLAGS-"-g"}
1048   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1049 fi
1050
1051 ACX_PROG_GNAT
1052 ACX_PROG_CMP_IGNORE_INITIAL
1053
1054 # Check for GMP and MPFR
1055 gmplibs=
1056 gmpinc=
1057 have_gmp=yes
1058 # Specify a location for mpfr
1059 # check for this first so it ends up on the link line before gmp.
1060 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1061
1062 if test "x$with_mpfr_dir" != x; then
1063   gmpinc="-I$with_mpfr_dir"
1064   gmplibs="$with_mpfr_dir/libmpfr.a"
1065 else
1066   gmplibs="-lmpfr"
1067 fi
1068
1069 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1070
1071 if test "x$with_mpfr" != x; then
1072   gmplibs="-L$with_mpfr/lib $gmplibs"
1073   gmpinc="-I$with_mpfr/include"
1074 fi
1075
1076 # Specify a location for gmp
1077 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1078
1079 if test "x$with_gmp_dir" != x; then
1080   gmpinc="$gmpinc -I$with_gmp_dir"
1081   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1082     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1083   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1084     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1085   fi
1086   # One of the later tests will catch the error if neither library is present.
1087 else
1088   gmplibs="$gmplibs -lgmp"
1089 fi
1090
1091 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1092
1093 if test "x$with_gmp" != x; then
1094   gmplibs="-L$with_gmp/lib $gmplibs"
1095   gmpinc="-I$with_gmp/include $gmpinc"
1096 fi
1097
1098 saved_CFLAGS="$CFLAGS"
1099 CFLAGS="$CFLAGS $gmpinc"
1100 # Check GMP actually works
1101 AC_MSG_CHECKING([for correct version of gmp.h])
1102 AC_TRY_COMPILE([#include "gmp.h"],[
1103 #if __GNU_MP_VERSION < 4 || (__GNU_MP_VERSION == 4 && __GNU_MP_VERSION_MINOR < 1)
1104 choke me
1105 #endif
1106 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1107
1108 if test x"$have_gmp" = xyes; then
1109   saved_LIBS="$LIBS"
1110   LIBS="$LIBS $gmplibs"
1111   AC_MSG_CHECKING([for correct version of mpfr.h])
1112   AC_TRY_LINK([#include <gmp.h>
1113 #include <mpfr.h>],[
1114 #if MPFR_VERSION_MAJOR < 2 || (MPFR_VERSION_MAJOR == 2 && MPFR_VERSION_MINOR < 2)
1115   choke me
1116 #endif
1117   mpfr_t n; mpfr_init(n);
1118 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1119   LIBS="$saved_LIBS"
1120 fi
1121 CFLAGS="$saved_CFLAGS"
1122
1123 if test -d ${srcdir}/gcc && test x$have_gmp != xyes; then
1124   AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.2+.
1125 Try the --with-gmp and/or --with-mpfr options to specify their locations.
1126 Copies of these libraries' source code can be found at their respective
1127 hosting sites as well as at ftp://gcc.gnu.org/pub/gcc/infrastructure/.
1128 See also http://gcc.gnu.org/install/prerequisites.html for additional info.])
1129 fi
1130
1131 # Flags needed for both GMP and/or MPFR
1132 AC_SUBST(gmplibs)
1133 AC_SUBST(gmpinc)
1134
1135 # By default, C is the only stage 1 language.
1136 stage1_languages=c
1137 AC_SUBST(stage1_languages)
1138
1139 # Figure out what language subdirectories are present.
1140 # Look if the user specified --enable-languages="..."; if not, use
1141 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1142 # go away some day.
1143 # NB:  embedded tabs in this IF block -- do not untabify
1144 if test -d ${srcdir}/gcc; then
1145   if test x"${enable_languages+set}" != xset; then
1146     if test x"${LANGUAGES+set}" = xset; then
1147       enable_languages="${LANGUAGES}"
1148         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1149     else
1150       enable_languages=all
1151     fi
1152   else
1153     if test x"${enable_languages}" = x ||
1154        test x"${enable_languages}" = xyes;
1155        then
1156       echo configure.in: --enable-languages needs at least one language argument 1>&2
1157       exit 1
1158     fi
1159   fi
1160   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1161
1162   # 'f95' is the old name for the 'fortran' language. We issue a warning
1163   # and make the substitution.
1164   case ,${enable_languages}, in
1165     *,f95,*)
1166       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1167       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1168       ;;
1169   esac
1170
1171   # First scan to see if an enabled language requires some other language.
1172   # We assume that a given config-lang.in will list all the language
1173   # front ends it requires, even if some are required indirectly.
1174   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1175     case ${lang_frag} in
1176       ..) ;;
1177       # The odd quoting in the next line works around
1178       # an apparent bug in bash 1.12 on linux.
1179       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1180       *)
1181         # From the config-lang.in, get $language, $lang_requires
1182         language=
1183         lang_requires=
1184         . ${lang_frag}
1185         for other in ${lang_requires} ; do
1186           case ,${enable_languages}, in
1187             *,$other,*) ;;
1188             *,all,*) ;;
1189             *,$language,*)
1190               echo " \`$other' language required by \`$language'; enabling" 1>&2
1191               enable_languages="${enable_languages},${other}"
1192               ;;
1193           esac
1194         done
1195         ;;
1196     esac
1197   done
1198
1199   new_enable_languages=c
1200   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1201   potential_languages=c
1202
1203   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1204     case ${lang_frag} in
1205       ..) ;;
1206       # The odd quoting in the next line works around
1207       # an apparent bug in bash 1.12 on linux.
1208       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1209       *)
1210         # From the config-lang.in, get $language, $target_libs,
1211         # $lang_dirs, $boot_language, and $build_by_default
1212         language=
1213         target_libs=
1214         lang_dirs=
1215         subdir_requires=
1216         boot_language=
1217         build_by_default=
1218         . ${lang_frag}
1219         potential_languages="${potential_languages},${language}"
1220         # This is quite sensitive to the ordering of the case statement arms.
1221         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1222           *::*:*)
1223             echo "${lang_frag} doesn't set \$language." 1>&2
1224             exit 1
1225             ;;
1226           *:ada:no:*)
1227             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1228             add_this_lang=no
1229             ;;
1230           *,${language},*:*:*:*)
1231             # Language was explicitly selected; include it.
1232             add_this_lang=yes
1233             ;;
1234           *,all,*:*:*:no)
1235             # 'all' was selected, but this is not a default language
1236             # so do not include it.
1237             add_this_lang=no
1238             ;;
1239           *,all,*:*:*:*)
1240             # 'all' was selected and this is a default language; include it.
1241             add_this_lang=yes
1242             ;;
1243           *)
1244             add_this_lang=no
1245             ;;
1246         esac
1247
1248         # Disable languages that need other directories if these aren't available.
1249         for i in $subdir_requires; do
1250           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1251           case ,${enable_languages}, in
1252             *,${language},*)
1253               # Specifically requested language; tell them.
1254               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1255               ;;
1256             *)
1257               # Silently disable.
1258               add_this_lang=no
1259               ;;
1260           esac
1261         done
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   spu-*-*)
1627     target_makefile_frag="config/mt-spu"
1628     ;;
1629   *-*-netware*)
1630     target_makefile_frag="config/mt-netware"
1631     ;;
1632   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1633     target_makefile_frag="config/mt-gnu"
1634     ;;
1635   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1636     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1637     # commands to handle both 32-bit and 64-bit objects.  These flags are
1638     # harmless if we're using GNU nm or ar.
1639     extra_arflags_for_target=" -X32_64"
1640     extra_nmflags_for_target=" -B -X32_64"
1641     ;;
1642   *-*-darwin*)
1643     # ranlib from Darwin requires the -c flag to look at common symbols.
1644     extra_ranlibflags_for_target=" -c"
1645     ;;
1646   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1647     target_makefile_frag="config/mt-wince"
1648     ;;
1649 esac
1650
1651 alphaieee_frag=/dev/null
1652 case $target in
1653   alpha*-*-*)
1654     # This just makes sure to use the -mieee option to build target libs.
1655     # This should probably be set individually by each library.
1656     alphaieee_frag="config/mt-alphaieee"
1657     ;;
1658 esac
1659
1660 # If --enable-target-optspace always use -Os instead of -O2 to build
1661 # the target libraries, similarly if it is not specified, use -Os
1662 # on selected platforms.
1663 ospace_frag=/dev/null
1664 case "${enable_target_optspace}:${target}" in
1665   yes:*)
1666     ospace_frag="config/mt-ospace"
1667     ;;
1668   :d30v-*)
1669     ospace_frag="config/mt-d30v"
1670     ;;
1671   :m32r-* | :d10v-* | :fr30-*)
1672     ospace_frag="config/mt-ospace"
1673     ;;
1674   no:* | :*)
1675     ;;
1676   *)
1677     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1678     ;;
1679 esac
1680
1681 # Default to using --with-stabs for certain targets.
1682 if test x${with_stabs} = x ; then
1683   case "${target}" in
1684   mips*-*-irix[[56]]*)
1685     ;;
1686   mips*-*-* | alpha*-*-osf*)
1687     with_stabs=yes;
1688     extra_host_args="${extra_host_args} --with-stabs"
1689     ;;
1690   esac
1691 fi
1692
1693 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1694 # them automatically.
1695 case "${host}" in
1696   hppa*64*-*-hpux11*)
1697     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1698     ;;
1699 esac
1700
1701 # Some systems (e.g., one of the i386-aix systems the gas testers are
1702 # using) don't handle "\$" correctly, so don't use it here.
1703 tooldir='${exec_prefix}'/${target_alias}
1704 build_tooldir=${tooldir}
1705
1706 # Create a .gdbinit file which runs the one in srcdir
1707 # and tells GDB to look there for source files.
1708
1709 if test -r ${srcdir}/.gdbinit ; then
1710   case ${srcdir} in
1711     .) ;;
1712     *) cat > ./.gdbinit <<EOF
1713 # ${NO_EDIT}
1714 dir ${srcdir}
1715 dir .
1716 source ${srcdir}/.gdbinit
1717 EOF
1718     ;;
1719   esac
1720 fi
1721
1722 # Make sure that the compiler is able to generate an executable.  If it
1723 # can't, we are probably in trouble.  We don't care whether we can run the
1724 # executable--we might be using a cross compiler--we only care whether it
1725 # can be created.  At this point the main configure script has set CC.
1726 we_are_ok=no
1727 echo "int main () { return 0; }" > conftest.c
1728 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1729 if test $? = 0 ; then
1730   if test -s conftest || test -s conftest.exe ; then
1731     we_are_ok=yes
1732   fi
1733 fi
1734 case $we_are_ok in
1735   no)
1736     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1737     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1738     rm -f conftest*
1739     exit 1
1740     ;;
1741 esac
1742 rm -f conftest*
1743
1744 # The Solaris /usr/ucb/cc compiler does not appear to work.
1745 case "${host}" in
1746   sparc-sun-solaris2*)
1747       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1748       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1749           could_use=
1750           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1751           if test -d /opt/cygnus/bin ; then
1752               if test "$could_use" = "" ; then
1753                   could_use="/opt/cygnus/bin"
1754               else
1755                   could_use="$could_use or /opt/cygnus/bin"
1756               fi
1757           fi
1758         if test "$could_use" = "" ; then
1759             echo "Warning: compilation may fail because you're using"
1760             echo "/usr/ucb/cc.  You should change your PATH or CC "
1761             echo "variable and rerun configure."
1762         else
1763             echo "Warning: compilation may fail because you're using"
1764             echo "/usr/ucb/cc, when you should use the C compiler from"
1765             echo "$could_use.  You should change your"
1766             echo "PATH or CC variable and rerun configure."
1767         fi
1768       fi
1769   ;;
1770 esac
1771
1772 case "${host}" in
1773   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1774   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1775   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1776 esac
1777
1778 # Record target_configdirs and the configure arguments for target and
1779 # build configuration in Makefile.
1780 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1781 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1782
1783 # Determine whether gdb needs tk/tcl or not.
1784 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1785 # and in that case we want gdb to be built without tk.  Ugh!
1786 # In fact I believe gdb is the *only* package directly dependent on tk,
1787 # so we should be able to put the 'maybe's in unconditionally and
1788 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1789 # 100% sure that that's safe though.
1790
1791 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1792 case "$enable_gdbtk" in
1793   no)
1794     GDB_TK="" ;;
1795   yes)
1796     GDB_TK="${gdb_tk}" ;;
1797   *)
1798     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1799     # distro.  Eventually someone will fix this and move Insight, nee
1800     # gdbtk to a separate directory.
1801     if test -d ${srcdir}/gdb/gdbtk ; then
1802       GDB_TK="${gdb_tk}"
1803     else
1804       GDB_TK=""
1805     fi
1806     ;;
1807 esac
1808 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1809 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1810
1811 # Strip out unwanted targets.
1812
1813 # While at that, we remove Makefiles if we were started for recursive
1814 # configuration, so that the top-level Makefile reconfigures them,
1815 # like we used to do when configure itself was recursive.
1816
1817 # Loop over modules.  $extrasub must be used with care, limiting as
1818 # much as possible the usage of range addresses.  That's because autoconf
1819 # splits the sed script to overcome limits in the number of commands,
1820 # and relying on carefully-timed sed passes may turn out to be very hard
1821 # to maintain later.  In this particular case, you just have to be careful
1822 # not to nest @if/@endif pairs, because configure will not warn you at all.
1823
1824 AC_ARG_ENABLE([bootstrap],
1825 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1826 enable_bootstrap=default)
1827
1828 # Issue errors and warnings for invalid/strange bootstrap combinations.
1829 case "$configdirs" in
1830   *gcc*) have_compiler=yes ;;
1831   *) have_compiler=no ;;
1832 esac
1833
1834 case "$have_compiler:$host:$target:$enable_bootstrap" in
1835   *:*:*:no) ;;
1836
1837   # Default behavior.  Enable bootstrap if we have a compiler
1838   # and we are in a native configuration.
1839   yes:$build:$build:default)
1840     enable_bootstrap=yes ;;
1841
1842   *:*:*:default)
1843     enable_bootstrap=no ;;
1844
1845   # We have a compiler and we are in a native configuration, bootstrap is ok
1846   yes:$build:$build:yes)
1847     ;;
1848
1849   # Other configurations, but we have a compiler.  Assume the user knows
1850   # what he's doing.
1851   yes:*:*:yes)
1852     AC_MSG_WARN([trying to bootstrap a cross compiler])
1853     ;;
1854
1855   # No compiler: if they passed --enable-bootstrap explicitly, fail
1856   no:*:*:yes)
1857     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1858
1859   # Fail if wrong command line
1860   *)
1861     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1862     ;;
1863 esac
1864
1865 # Adjust the toplevel makefile according to whether bootstrap was selected.
1866 case "$enable_bootstrap" in
1867   yes)
1868     bootstrap_suffix=bootstrap ;;
1869   no)
1870     bootstrap_suffix=no-bootstrap ;;
1871 esac
1872
1873 for module in ${build_configdirs} ; do
1874   if test -z "${no_recursion}" \
1875      && test -f ${build_subdir}/${module}/Makefile; then
1876     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1877     rm -f ${build_subdir}/${module}/Makefile
1878   fi
1879   extrasub="$extrasub
1880 /^@if build-$module\$/d
1881 /^@endif build-$module\$/d
1882 /^@if build-$module-$bootstrap_suffix\$/d
1883 /^@endif build-$module-$bootstrap_suffix\$/d"
1884 done
1885 for module in ${configdirs} ; do
1886   if test -z "${no_recursion}"; then
1887     for file in stage*-${module}/Makefile ${module}/Makefile; do
1888       if test -f ${file}; then
1889         echo 1>&2 "*** removing ${file} to force reconfigure"
1890         rm -f ${file}
1891       fi
1892     done
1893   fi
1894   extrasub="$extrasub
1895 /^@if $module\$/d
1896 /^@endif $module\$/d
1897 /^@if $module-$bootstrap_suffix\$/d
1898 /^@endif $module-$bootstrap_suffix\$/d"
1899 done
1900 for module in ${target_configdirs} ; do
1901   if test -z "${no_recursion}" \
1902      && test -f ${target_subdir}/${module}/Makefile; then
1903     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1904     rm -f ${target_subdir}/${module}/Makefile
1905   fi
1906   extrasub="$extrasub
1907 /^@if target-$module\$/d
1908 /^@endif target-$module\$/d
1909 /^@if target-$module-$bootstrap_suffix\$/d
1910 /^@endif target-$module-$bootstrap_suffix\$/d"
1911 done
1912
1913 extrasub="$extrasub
1914 /^@if /,/^@endif /d"
1915
1916 # Create the serialization dependencies.  This uses a temporary file.
1917
1918 AC_ARG_ENABLE([serial-configure],
1919 [  --enable-serial-[{host,target,build}-]configure
1920                           Force sequential configuration of
1921                           sub-packages for the host, target or build
1922                           machine, or all sub-packages])
1923
1924 case ${enable_serial_configure} in
1925   yes)
1926     enable_serial_build_configure=yes
1927     enable_serial_host_configure=yes
1928     enable_serial_target_configure=yes
1929     ;;
1930 esac
1931
1932 # These force 'configure's to be done one at a time, to avoid problems
1933 # with contention over a shared config.cache.
1934 rm -f serdep.tmp
1935 echo '# serdep.tmp' > serdep.tmp
1936 olditem=
1937 test "x${enable_serial_build_configure}" = xyes &&
1938 for item in ${build_configdirs} ; do
1939   case ${olditem} in
1940     "") ;;
1941     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1942   esac
1943   olditem=${item}
1944 done
1945 olditem=
1946 test "x${enable_serial_host_configure}" = xyes &&
1947 for item in ${configdirs} ; do
1948   case ${olditem} in
1949     "") ;;
1950     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1951   esac
1952   olditem=${item}
1953 done
1954 olditem=
1955 test "x${enable_serial_target_configure}" = xyes &&
1956 for item in ${target_configdirs} ; do
1957   case ${olditem} in
1958     "") ;;
1959     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1960   esac
1961   olditem=${item}
1962 done
1963 serialization_dependencies=serdep.tmp
1964 AC_SUBST_FILE(serialization_dependencies)
1965
1966 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1967 # target and nonopt.  These are the ones we might not want to pass
1968 # down to subconfigures.  Also strip program-prefix, program-suffix,
1969 # and program-transform-name, so that we can pass down a consistent
1970 # program-transform-name.  If autoconf has put single quotes around
1971 # any of these arguments (because they contain shell metacharacters)
1972 # then this will fail; in practice this only happens for
1973 # --program-transform-name, so be sure to override --program-transform-name
1974 # at the end of the argument list.
1975 # These will be expanded by make, so quote '$'.
1976 cat <<\EOF_SED > conftestsed
1977 s/ --no[[^ ]]*/ /g
1978 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1979 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1980 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1981 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1982 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1983 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1984 s/ -cache-file[[= ]][[^ ]]*//g
1985 s/ -srcdir[[= ]][[^ ]]*//g
1986 s/ -host[[= ]][[^ ]]*//g
1987 s/ -build[[= ]][[^ ]]*//g
1988 s/ -target[[= ]][[^ ]]*//g
1989 s/ -program-prefix[[= ]][[^ ]]*//g
1990 s/ -program-suffix[[= ]][[^ ]]*//g
1991 s/ -program-transform-name[[= ]][[^ ]]*//g
1992 s/ [[^' -][^ ]*] / /
1993 s/^ *//;s/ *$//
1994 s,\$,$$,g
1995 EOF_SED
1996 sed -f conftestsed <<EOF_SED > conftestsed.out
1997  ${ac_configure_args}
1998 EOF_SED
1999 baseargs=`cat conftestsed.out`
2000 rm -f conftestsed conftestsed.out
2001
2002 # Add in --program-transform-name, after --program-prefix and
2003 # --program-suffix have been applied to it.  Autoconf has already
2004 # doubled dollar signs and backslashes in program_transform_name; we want
2005 # the backslashes un-doubled, and then the entire thing wrapped in single
2006 # quotes, because this will be expanded first by make and then by the shell.
2007 # Also, because we want to override the logic in subdir configure scripts to
2008 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2009 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2010 ${program_transform_name}
2011 EOF_SED
2012 gcc_transform_name=`cat conftestsed.out`
2013 rm -f conftestsed.out
2014 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2015
2016 # For the build-side libraries, we just need to pretend we're native,
2017 # and not use the same cache file.  Multilibs are neither needed nor
2018 # desired.
2019 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
2020
2021 # For host modules, accept cache file option, or specification as blank.
2022 case "${cache_file}" in
2023 "") # empty
2024   cache_file_option="" ;;
2025 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2026   cache_file_option="--cache-file=${cache_file}" ;;
2027 *) # relative path
2028   cache_file_option="--cache-file=../${cache_file}" ;;
2029 esac
2030
2031 # Host dirs don't like to share a cache file either, horribly enough.
2032 # This seems to be due to autoconf 2.5x stupidity.
2033 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
2034
2035 target_configargs=${baseargs}
2036
2037 # Passing a --with-cross-host argument lets the target libraries know
2038 # whether they are being built with a cross-compiler or being built
2039 # native.  However, it would be better to use other mechanisms to make the
2040 # sorts of decisions they want to make on this basis.  Please consider
2041 # this option to be deprecated.  FIXME.
2042 if test x${is_cross_compiler} = xyes ; then
2043   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2044 fi
2045
2046 # Default to --enable-multilib.
2047 if test x${enable_multilib} = x ; then
2048   target_configargs="--enable-multilib ${target_configargs}"
2049 fi
2050
2051 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2052 # changed from the earlier setting of with_newlib.
2053 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2054   target_configargs="--with-newlib ${target_configargs}"
2055 fi
2056
2057 # Different target subdirs use different values of certain variables
2058 # (notably CXX).  Worse, multilibs use *lots* of different values.
2059 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2060 # it doesn't automatically accept command-line overrides of them.
2061 # This means it's not safe for target subdirs to share a cache file,
2062 # which is disgusting, but there you have it.  Hopefully this can be
2063 # fixed in future.  It's still worthwhile to use a cache file for each
2064 # directory.  I think.
2065
2066 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2067 # We need to pass --target, as newer autoconf's requires consistency
2068 # for target_alias and gcc doesn't manage it consistently.
2069 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2070
2071 FLAGS_FOR_TARGET=
2072 case " $target_configdirs " in
2073  *" newlib "*)
2074   case " $target_configargs " in
2075   *" --with-newlib "*)
2076    case "$target" in
2077    *-cygwin*)
2078      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' ;;
2079    esac
2080
2081    # If we're not building GCC, don't discard standard headers.
2082    if test -d ${srcdir}/gcc; then
2083      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2084
2085      if test "${build}" != "${host}"; then
2086        # On Canadian crosses, CC_FOR_TARGET will have already been set
2087        # by `configure', so we won't have an opportunity to add -Bgcc/
2088        # to it.  This is right: we don't want to search that directory
2089        # for binaries, but we want the header files in there, so add
2090        # them explicitly.
2091        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2092
2093        # Someone might think of using the pre-installed headers on
2094        # Canadian crosses, in case the installed compiler is not fully
2095        # compatible with the compiler being built.  In this case, it
2096        # would be better to flag an error than risking having
2097        # incompatible object files being constructed.  We can't
2098        # guarantee that an error will be flagged, but let's hope the
2099        # compiler will do it, when presented with incompatible header
2100        # files.
2101      fi
2102    fi
2103
2104    case "${target}-${is_cross_compiler}" in
2105    i[[3456789]]86-*-linux*-no)
2106       # Here host == target, so we don't need to build gcc,
2107       # so we don't want to discard standard headers.
2108       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2109       ;;
2110    *)
2111       # If we're building newlib, use its generic headers last, but search
2112       # for any libc-related directories first (so make it the last -B
2113       # switch).
2114       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2115       ;;
2116    esac
2117    ;;
2118   esac
2119   ;;
2120 esac
2121 case "$target" in
2122 *-mingw*)
2123   # Can't be handled as Cygwin above since Mingw does not use newlib.
2124   FLAGS_FOR_TARGET=$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' ;;
2125 esac
2126
2127 # Allow the user to override the flags for
2128 # our build compiler if desired.
2129 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2130
2131 # On Canadian crosses, we'll be searching the right directories for
2132 # the previously-installed cross compiler, so don't bother to add
2133 # flags for directories within the install tree of the compiler
2134 # being built; programs in there won't even run.
2135 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2136   # Search for pre-installed headers if nothing else fits.
2137   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2138 fi
2139
2140 if test "x${use_gnu_ld}" = x &&
2141    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2142   # Arrange for us to find uninstalled linker scripts.
2143   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2144 fi
2145
2146 # Search for other target-specific linker scripts and such.
2147 case "${target}" in
2148   m32c-*-* )
2149     if test -d ${srcdir}/libgloss/m32c; then
2150       # This is for crt0.o
2151       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2152       # This is for r8c.ld
2153       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2154       # This is for libnosys.a
2155       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2156     fi
2157     ;;
2158 esac
2159
2160 # Makefile fragments.
2161 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2162 do
2163   eval fragval=\$$frag
2164   if test $fragval != /dev/null; then
2165     eval $frag=${srcdir}/$fragval
2166   fi
2167 done
2168 AC_SUBST_FILE(host_makefile_frag)
2169 AC_SUBST_FILE(target_makefile_frag)
2170 AC_SUBST_FILE(alphaieee_frag)
2171 AC_SUBST_FILE(ospace_frag)
2172
2173 # Miscellanea: directories, flags, etc.
2174 AC_SUBST(RPATH_ENVVAR)
2175 AC_SUBST(tooldir)
2176 AC_SUBST(build_tooldir)
2177 AC_SUBST(CONFIGURE_GDB_TK)
2178 AC_SUBST(GDB_TK)
2179 AC_SUBST(INSTALL_GDB_TK)
2180
2181 # Build module lists & subconfigure args.
2182 AC_SUBST(build_configargs)
2183 AC_SUBST(build_configdirs)
2184
2185 # Host module lists & subconfigure args.
2186 AC_SUBST(host_configargs)
2187 AC_SUBST(configdirs)
2188
2189 # Target module lists & subconfigure args.
2190 AC_SUBST(target_configargs)
2191
2192
2193 # Build tools.
2194 AC_SUBST(CC_FOR_BUILD)
2195 AC_SUBST(config_shell)
2196
2197 # Generate default definitions for YACC, M4, LEX and other programs that run
2198 # on the build machine.  These are used if the Makefile can't locate these
2199 # programs in objdir.
2200 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2201
2202 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2203 case " $build_configdirs " in
2204   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2205   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2206 esac
2207
2208 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2209 case " $build_configdirs " in
2210   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2211 esac
2212
2213 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2214 case " $build_configdirs " in
2215   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2216 esac
2217
2218 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2219 case " $build_configdirs " in
2220   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2221   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2222 esac
2223
2224 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2225 case " $build_configdirs " in
2226   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2227 esac
2228
2229 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2230 case " $build_configdirs " in
2231   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2232   *)
2233 changequote(,)
2234     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2235     # higher, else we use the "missing" dummy.
2236     if ${MAKEINFO} --version \
2237        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2238       :
2239     else
2240       MAKEINFO="$MISSING makeinfo"
2241     fi
2242     ;;
2243 changequote([,])
2244 esac
2245
2246 # FIXME: expect and dejagnu may become build tools?
2247
2248 AC_CHECK_PROGS(EXPECT, expect, expect)
2249 case " $configdirs " in
2250   *" expect "*)
2251     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2252     ;;
2253 esac
2254
2255 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2256 case " $configdirs " in
2257   *" dejagnu "*)
2258     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2259     ;;
2260 esac
2261
2262
2263 # Host tools.
2264 NCN_STRICT_CHECK_TOOLS(AR, ar)
2265 NCN_STRICT_CHECK_TOOLS(AS, as)
2266 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2267 NCN_STRICT_CHECK_TOOLS(LD, ld)
2268 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2269 NCN_STRICT_CHECK_TOOLS(NM, nm)
2270 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2271 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2272 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2273 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2274 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2275 AC_SUBST(CC)
2276 AC_SUBST(CXX)
2277 AC_SUBST(CFLAGS)
2278 AC_SUBST(CFLAGS_FOR_BUILD)
2279 AC_SUBST(CXXFLAGS)
2280
2281 # Target tools.
2282 AC_ARG_WITH([build-time-tools],
2283   [  --with-build-time-tools=path
2284                           use given path to find target tools during the build],
2285   [case x"$withval" in
2286      x/*) ;;
2287      *)
2288        with_build_time_tools=
2289        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2290        ;;
2291    esac],
2292   [with_build_time_tools=])
2293
2294 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2295 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2296 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2297 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2298 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2299
2300 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2301 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2302 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2303 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2304 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2305 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2306 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2307 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2308 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2309 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2310
2311 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2312
2313 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2314 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2315 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2316 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2317                 [gcc/g++ -B$$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],
2318                 c++)
2319 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2320                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2321                 c++)
2322 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2323 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2324 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2325                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2326 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2327                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2328 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2329 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2330 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2331 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2332 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2333 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2334 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2335
2336 AC_SUBST(FLAGS_FOR_TARGET)
2337 AC_SUBST(RAW_CXX_FOR_TARGET)
2338
2339 # Certain tools may need extra flags.
2340 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2341 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2342 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2343
2344 # When building target libraries, except in a Canadian cross, we use
2345 # the same toolchain as the compiler we just built.
2346 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2347 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2348 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2349 if test $host = $build; then
2350   case " $configdirs " in
2351     *" gcc "*)
2352       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2353       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2354       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2355       ;;
2356   esac
2357 fi
2358
2359 AC_SUBST(COMPILER_AS_FOR_TARGET)
2360 AC_SUBST(COMPILER_LD_FOR_TARGET)
2361 AC_SUBST(COMPILER_NM_FOR_TARGET)
2362
2363 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2364 AC_ARG_ENABLE(maintainer-mode,
2365 [  --enable-maintainer-mode enable make rules and dependencies not useful
2366                           (and sometimes confusing) to the casual installer],
2367       USE_MAINTAINER_MODE=$enableval,
2368       USE_MAINTAINER_MODE=no)
2369 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2370 AC_SUBST(MAINTAINER_MODE_TRUE)
2371 AC_SUBST(MAINTAINER_MODE_FALSE)
2372 if test "$USE_MAINTAINER_MODE" = yes; then
2373   MAINTAINER_MODE_TRUE=
2374   MAINTAINER_MODE_FALSE='#'
2375 else
2376   MAINTAINER_MODE_TRUE='#'
2377   MAINTAINER_MODE_FALSE=
2378 fi
2379 MAINT=$MAINTAINER_MODE_TRUE
2380 AC_SUBST(MAINT)dnl
2381
2382 # ---------------------
2383 # GCC bootstrap support
2384 # ---------------------
2385
2386 # Stage specific cflags for build.
2387 stage1_cflags="-g"
2388 case $build in
2389   vax-*-*)
2390     case ${GCC} in
2391       yes) stage1_cflags="-g -Wa,-J" ;;
2392       *) stage1_cflags="-g -J" ;;
2393     esac ;;
2394   powerpc-*-darwin*)
2395     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2396     # sources; use -no-cpp-precomp to get to GNU cpp.
2397     # Apple's GCC has bugs in designated initializer handling, so disable
2398     # that too.
2399     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2400     ;;
2401 esac
2402
2403 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
2404 if test "$GCC" = yes; then
2405   saved_CFLAGS="$CFLAGS"
2406
2407   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
2408   CFLAGS="$CFLAGS -fkeep-inline-functions"
2409   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
2410   AC_TRY_COMPILE(,,
2411     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
2412     [AC_MSG_RESULT([no])])
2413
2414   CFLAGS="$saved_CFLAGS"
2415 fi
2416
2417 AC_SUBST(stage1_cflags)
2418
2419 # Enable -Werror in bootstrap stage2 and later.
2420 # Change the default to "no" on release branches.
2421 AC_ARG_ENABLE(werror,
2422 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2423 [enable_werror=yes])
2424 case ${enable_werror} in
2425   yes) stage2_werror_flag="--enable-werror-always" ;;
2426   *) stage2_werror_flag="" ;;
2427 esac
2428 AC_SUBST(stage2_werror_flag)
2429
2430 # Flags needed to enable html installing and building
2431 AC_ARG_WITH(datarootdir,
2432 [  --with-datarootdir   Use datarootdir as the data root directory.],
2433 [datarootdir="\${prefix}/${withval}"],
2434 [datarootdir="\${prefix}/share"])
2435
2436 AC_ARG_WITH(docdir,
2437 [  --with-docdir        Install documentation in this directory.],
2438 [docdir="\${prefix}/${withval}"],
2439 [docdir="\${datarootdir}/doc"])
2440
2441 AC_ARG_WITH(htmldir,
2442 [  --with-htmldir       Install html in this directory.],
2443 [htmldir="\${prefix}/${withval}"],
2444 [htmldir="\${docdir}"])
2445
2446 AC_SUBST(datarootdir)
2447 AC_SUBST(docdir)
2448 AC_SUBST(htmldir)
2449
2450 AC_OUTPUT(Makefile)