configure.in

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