configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   2 #   2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
   3 #
   4 # This file is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17
  18 ##############################################################################
  19 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  20
  21 sinclude(config/acx.m4)
  22
  23 AC_INIT(move-if-change)
  24 AC_PREREQ(2.13)
  25 AC_CANONICAL_SYSTEM
  26 AC_ARG_PROGRAM
  27
  28 # Get 'install' or 'install-sh' and its variants.
  29 AC_PROG_INSTALL
  30 ACX_PROG_LN
  31 AC_PROG_LN_S
  32
  33 ### we might need to use some other shell than /bin/sh for running subshells
  34 ### If we are on Windows, search for the shell.  This will permit people
  35 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  36 ### without also having to set CONFIG_SHELL.  This code will work when
  37 ### using bash, which sets OSTYPE.
  38 case "${OSTYPE}" in
  39 *win32*)
  40   if test x${CONFIG_SHELL} = x ; then
  41     if test ! -f /bin/sh ; then
  42       if test x${SHELL} != x && test -f ${SHELL} ; then
  43         CONFIG_SHELL=${SHELL}
  44         export CONFIG_SHELL
  45       else
  46         for prog in sh sh.exe bash bash.exe; do
  47           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  48           for dir in $PATH; do
  49             test -z "$dir" && dir=.
  50             if test -f $dir/$prog; then
  51               CONFIG_SHELL=$dir/$prog
  52               export CONFIG_SHELL
  53               break
  54             fi
  55           done
  56           IFS="$save_ifs"
  57           test -n "${CONFIG_SHELL}" && break
  58         done
  59       fi
  60     fi
  61   fi
  62   ;;
  63 esac
  64
  65 config_shell=${CONFIG_SHELL-/bin/sh}
  66
  67 progname=$0
  68 # if PWD already has a value, it is probably wrong.
  69 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  70
  71 # Export original configure arguments for use by sub-configures.  These
  72 # will be expanded by make, so quote '$'.
  73 tmp="$progname $@"
  74 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
  75 $tmp
  76 EOF_SED
  77 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
  78 rm -f conftestsed.out
  79 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  80
  81 moveifchange=${srcdir}/move-if-change
  82
  83 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  84
  85 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
  86 # a relative path.
  87 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
  88   INSTALL="${srcpwd}/install-sh -c"
  89 fi
  90
  91 # Set srcdir to "." if that's what it is.
  92 # This is important for multilib support.
  93 pwd=`${PWDCMD-pwd}`
  94 if test "${pwd}" = "${srcpwd}" ; then
  95   srcdir=.
  96 fi
  97
  98 topsrcdir=$srcpwd
  99
 100 extra_host_args=
 101
 102 ### To add a new directory to the tree, first choose whether it is a target
 103 ### or a host dependent tool.  Then put it into the appropriate list
 104 ### (library or tools, host or target), doing a dependency sort.
 105
 106 # Subdirs will be configured in the order listed in build_configdirs,
 107 # configdirs, or target_configdirs; see the serialization section below.
 108
 109 # Dependency sorting is only needed when *configuration* must be done in
 110 # a particular order.  In all cases a dependency should be specified in
 111 # the Makefile, whether or not it's implicitly specified here.
 112
 113 # Double entries in build_configdirs, configdirs, or target_configdirs may
 114 # cause circular dependencies and break everything horribly.
 115
 116 # these library is used by various programs built for the build
 117 # environment
 118 #
 119 build_libs="build-libiberty"
 120
 121 # these tools are built for the build environment
 122 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 123
 124 # these libraries are used by various programs built for the host environment
 125 #
 126 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber"
 127
 128 # these tools are built for the host environment
 129 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 130 # know that we are building the simulator.
 131 # binutils, gas and ld appear in that order because it makes sense to run
 132 # "make check" in that particular order.
 133 host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils gettext zip fastjar gnattools"
 134
 135 # libgcj represents the runtime libraries only used by gcj.
 136 libgcj="target-libffi \
 137         target-zlib \
 138         target-qthreads \
 139         target-libjava"
 140
 141 # these libraries are built for the target environment, and are built after
 142 # the host libraries and the host tools (which may be a cross compiler)
 143 #
 144 target_libraries="target-libiberty \
 145                 target-libgloss \
 146                 target-newlib \
 147                 target-libstdc++-v3 \
 148                 target-libmudflap \
 149                 target-libssp \
 150                 target-libgfortran \
 151                 target-boehm-gc \
 152                 ${libgcj} \
 153                 target-libobjc \
 154                 target-libada \
 155                 target-libgomp"
 156
 157 # these tools are built using the target libraries, and are intended to
 158 # run only in the target environment
 159 #
 160 # note: any program that *uses* libraries that are in the "target_libraries"
 161 # list belongs in this list.  those programs are also very likely
 162 # candidates for the "native_only" list which follows
 163 #
 164 target_tools="target-examples target-groff target-gperf target-rda"
 165
 166 ################################################################################
 167
 168 ## All tools belong in one of the four categories, and are assigned above
 169 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 170 ## is important because configure will choke if they ever get through.
 171 ## ${configdirs} is directories we build using the host tools.
 172 ## ${target_configdirs} is directories we build using the target tools.
 173 configdirs=`echo ${host_libs} ${host_tools}`
 174 target_configdirs=`echo ${target_libraries} ${target_tools}`
 175 build_configdirs=`echo ${build_libs} ${build_tools}`
 176
 177 ################################################################################
 178
 179 srcname="gnu development package"
 180
 181 # This gets set non-empty for some net releases of packages.
 182 appdirs=""
 183
 184 # Define is_cross_compiler to save on calls to 'test'.
 185 is_cross_compiler=
 186 if test x"${host}" = x"${target}" ; then
 187   is_cross_compiler=no
 188 else
 189   is_cross_compiler=yes
 190 fi
 191
 192 # Find the build and target subdir names.
 193 GCC_TOPLEV_SUBDIRS
 194
 195 # Skipdirs are removed silently.
 196 skipdirs=
 197 # Noconfigdirs are removed loudly.
 198 noconfigdirs=""
 199
 200 use_gnu_ld=
 201 # Make sure we don't let GNU ld be added if we didn't want it.
 202 if test x$with_gnu_ld = xno ; then
 203   use_gnu_ld=no
 204   noconfigdirs="$noconfigdirs ld"
 205 fi
 206
 207 use_gnu_as=
 208 # Make sure we don't let GNU as be added if we didn't want it.
 209 if test x$with_gnu_as = xno ; then
 210   use_gnu_as=no
 211   noconfigdirs="$noconfigdirs gas"
 212 fi
 213
 214 # some tools are so dependent upon X11 that if we're not building with X,
 215 # it's not even worth trying to configure, much less build, that tool.
 216
 217 case ${with_x} in
 218   yes | "") ;; # the default value for this tree is that X11 is available
 219   no)
 220     skipdirs="${skipdirs} tk itcl libgui"
 221     # We won't be able to build gdbtk without X.
 222     enable_gdbtk=no
 223     ;;
 224   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 225 esac
 226
 227 # Some tools are only suitable for building in a "native" situation.
 228 # Remove these if host!=target.
 229 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 230
 231 # Similarly, some are only suitable for cross toolchains.
 232 # Remove these if host=target.
 233 cross_only="target-libgloss target-newlib target-opcodes"
 234
 235 case $is_cross_compiler in
 236   no) skipdirs="${skipdirs} ${cross_only}" ;;
 237   yes) skipdirs="${skipdirs} ${native_only}" ;;
 238 esac
 239
 240 # If both --with-headers and --with-libs are specified, default to
 241 # --without-newlib.
 242 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 243    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 244   if test x"${with_newlib}" = x ; then
 245     with_newlib=no
 246   fi
 247 fi
 248
 249 # Recognize --with-newlib/--without-newlib.
 250 case ${with_newlib} in
 251   no) skipdirs="${skipdirs} target-newlib" ;;
 252   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 253 esac
 254
 255 # Configure extra directories which are host specific
 256
 257 case "${host}" in
 258   *-cygwin*)
 259     configdirs="$configdirs libtermcap" ;;
 260 esac
 261
 262 # A target can indicate whether a language isn't supported for some reason.
 263 # Only spaces may be used in this macro; not newlines or tabs.
 264 unsupported_languages=
 265
 266 # Remove more programs from consideration, based on the host or
 267 # target this usually means that a port of the program doesn't
 268 # exist yet.
 269
 270 case "${host}" in
 271   hppa*64*-*-*)
 272     noconfigdirs="$noconfigdirs byacc"
 273     ;;
 274   i[[3456789]]86-*-vsta)
 275     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 276     ;;
 277   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 278     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 279     ;;
 280   i[[3456789]]86-*-mingw32*)
 281     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 282     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
 283     ;;
 284   i[[3456789]]86-*-beos*)
 285     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 286     ;;
 287   *-*-cygwin*)
 288     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 289     ;;
 290   *-*-netbsd*)
 291     noconfigdirs="$noconfigdirs rcs"
 292     ;;
 293   ppc*-*-pe)
 294     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 295     ;;
 296   powerpc-*-beos*)
 297     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 298     ;;
 299 esac
 300
 301
 302 AC_ARG_ENABLE(libada,
 303 [  --enable-libada        Builds libada directory],
 304 ENABLE_LIBADA=$enableval,
 305 ENABLE_LIBADA=yes)
 306 if test "${ENABLE_LIBADA}" != "yes" ; then
 307   noconfigdirs="$noconfigdirs gnattools"
 308 fi
 309
 310 AC_ARG_ENABLE(libssp,
 311 [  --enable-libssp        Builds libssp directory],
 312 ENABLE_LIBSSP=$enableval,
 313 ENABLE_LIBSSP=yes)
 314
 315 # Save it here so that, even in case of --enable-libgcj, if the Java
 316 # front-end isn't enabled, we still get libgcj disabled.
 317 libgcj_saved=$libgcj
 318 case $enable_libgcj in
 319 yes)
 320   # If we reset it here, it won't get added to noconfigdirs in the
 321   # target-specific build rules, so it will be forcibly enabled
 322   # (unless the Java language itself isn't enabled).
 323   libgcj=
 324   ;;
 325 no)
 326   # Make sure we get it printed in the list of not supported target libs.
 327   noconfigdirs="$noconfigdirs ${libgcj}"
 328   ;;
 329 esac
 330
 331
 332 # Disable libmudflap on some systems.
 333 if test x$enable_libmudflap = x ; then
 334     case "${target}" in
 335     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 336         # Enable libmudflap by default in GNU and friends.
 337         ;;
 338     *-*-freebsd*)
 339         # Enable libmudflap by default in FreeBSD.
 340         ;;
 341     *)
 342         # Disable it by default everywhere else.
 343         noconfigdirs="$noconfigdirs target-libmudflap"
 344         ;;
 345     esac
 346 fi
 347
 348 # Disable libgomp on non POSIX hosted systems.
 349 if test x$enable_libgomp = x ; then
 350     # Enable libgomp by default on hosted POSIX systems.
 351     case "${target}" in
 352     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 353         ;;
 354     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 355         ;;
 356     *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
 357         ;;
 358     *-*-darwin* | *-*-aix*)
 359         ;;
 360     *)
 361         noconfigdirs="$noconfigdirs target-libgomp"
 362         ;;
 363     esac
 364 fi
 365
 366
 367 case "${target}" in
 368   *-*-chorusos)
 369     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 370     ;;
 371   powerpc-*-darwin*)
 372     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 373     noconfigdirs="$noconfigdirs sim target-rda"
 374     ;;
 375   *-*-darwin*)
 376     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 377     noconfigdirs="$noconfigdirs sim target-rda"
 378     noconfigdirs="$noconfigdirs ${libgcj}"
 379     ;;
 380   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 381     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 382     ;;
 383   *-*-freebsd*)
 384     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 385     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 386         && test -f /usr/local/include/gmp.h; then
 387       with_gmp=/usr/local
 388     fi
 389
 390     # Skip some stuff that's unsupported on some FreeBSD configurations.
 391     case "${target}" in
 392       i*86-*-*) ;;
 393       alpha*-*-*) ;;
 394       *)
 395         noconfigdirs="$noconfigdirs ${libgcj}"
 396         ;;
 397     esac
 398     ;;
 399   *-*-kaos*)
 400     # Remove unsupported stuff on all kaOS configurations.
 401     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 402     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 403     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 404     noconfigdirs="$noconfigdirs target-libgloss"
 405     ;;
 406   *-*-netbsd*)
 407     # Skip some stuff on all NetBSD configurations.
 408     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 409
 410     # Skip some stuff that's unsupported on some NetBSD configurations.
 411     case "${target}" in
 412       i*86-*-netbsdelf*) ;;
 413       arm*-*-netbsdelf*) ;;
 414       *)
 415         noconfigdirs="$noconfigdirs ${libgcj}"
 416         ;;
 417     esac
 418     ;;
 419   *-*-netware*)
 420     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 421     ;;
 422   *-*-rtems*)
 423     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 424     ;;
 425     # The tpf target doesn't support gdb yet.
 426   *-*-tpf*)
 427     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 428     ;;
 429   *-*-uclinux*)
 430     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 431     ;;
 432   *-*-vxworks*)
 433     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 434     ;;
 435   alpha*-dec-osf*)
 436     # ld works, but does not support shared libraries.
 437     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 438     # gas doesn't generate exception information.
 439     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 440     ;;
 441   alpha*-*-*vms*)
 442     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 443     ;;
 444   alpha*-*-linux*)
 445     # newlib is not 64 bit ready
 446     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 447     ;;
 448   alpha*-*-*)
 449     # newlib is not 64 bit ready
 450     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 451     ;;
 452   am33_2.0-*-linux*)
 453     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 454     ;;
 455   sh-*-linux*)
 456     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 457     ;;
 458   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 459     noconfigdirs="$noconfigdirs ${libgcj}"
 460     noconfigdirs="$noconfigdirs target-examples"
 461     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 462     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 463     noconfigdirs="$noconfigdirs expect dejagnu"
 464     # the C++ libraries don't build on top of CE's C libraries
 465     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 466     noconfigdirs="$noconfigdirs target-newlib"
 467     case "${host}" in
 468       *-*-cygwin*) ;; # keep gdb and readline
 469       *) noconfigdirs="$noconfigdirs gdb readline"
 470          ;;
 471     esac
 472     ;;
 473   arc-*-*)
 474     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 475     ;;
 476   arm-semi-aof )
 477     ;;
 478   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 479     noconfigdirs="$noconfigdirs ${libgcj}"
 480     ;;
 481   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 482     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 483     ;;
 484   arm*-*-linux-gnueabi)
 485     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 486     noconfigdirs="$noconfigdirs target-libjava target-libobjc"
 487     ;;
 488   arm*-*-symbianelf*)
 489     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 490     ;;
 491   arm-*-pe*)
 492     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 493     ;;
 494   thumb-*-coff)
 495     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 496     ;;
 497   thumb-*-elf)
 498     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 499     ;;
 500   thumb-*-pe)
 501     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 502     ;;
 503   arm-*-riscix*)
 504     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 505     ;;
 506   avr-*-*)
 507     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 508     ;;
 509   bfin-*-*)
 510     noconfigdirs="$noconfigdirs target-libgloss gdb"
 511     if test x${is_cross_compiler} != xno ; then
 512       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 513     fi
 514     ;;
 515   c4x-*-* | tic4x-*-*)
 516     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 517     ;;
 518   c54x*-*-* | tic54x-*-*)
 519     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 520     ;;
 521   cris-*-* | crisv32-*-*)
 522     unsupported_languages="$unsupported_languages java"
 523     case "${target}" in
 524       *-*-aout)
 525         unsupported_languages="$unsupported_languages fortran"
 526         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 527       *-*-elf)
 528         unsupported_languages="$unsupported_languages fortran"
 529         noconfigdirs="$noconfigdirs target-boehm-gc";;
 530       *-*-linux*)
 531         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 532       *)
 533         unsupported_languages="$unsupported_languages fortran"
 534         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 535     esac
 536     ;;
 537   crx-*-*)
 538     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 539     ;;
 540   d10v-*-*)
 541     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 542     ;;
 543   d30v-*-*)
 544     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 545     ;;
 546   fr30-*-elf*)
 547     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 548     ;;
 549   frv-*-*)
 550     noconfigdirs="$noconfigdirs ${libgcj}"
 551     ;;
 552   h8300*-*-*)
 553     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 554     ;;
 555   h8500-*-*)
 556     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 557     ;;
 558   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 559     ;;
 560   hppa*64*-*-linux* | parisc*64*-*-linux*)
 561     # In this case, it's because the hppa64-linux target is for
 562     # the kernel only at this point and has no libc, and thus no
 563     # headers, crt*.o, etc., all of which are needed by these.
 564     noconfigdirs="$noconfigdirs target-zlib"
 565     ;;
 566   parisc*-*-linux* | hppa*-*-linux*)
 567     ;;
 568   hppa*-*-*elf* | \
 569   hppa*-*-lites* | \
 570   hppa*-*-openbsd* | \
 571   hppa*64*-*-*)
 572     noconfigdirs="$noconfigdirs ${libgcj}"
 573     ;;
 574   hppa*-hp-hpux11*)
 575     noconfigdirs="$noconfigdirs ld shellutils"
 576     ;;
 577   hppa*-*-*)
 578     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 579     # build on HP-UX 10.20.
 580     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 581     ;;
 582   i960-*-*)
 583     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 584     ;;
 585   ia64*-*-elf*)
 586     # No gdb support yet.
 587     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 588     ;;
 589   ia64*-**-hpux*)
 590     # No gdb or ld support yet.
 591     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 592     ;;
 593   i370-*-opened*)
 594     ;;
 595   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 596     noconfigdirs="$noconfigdirs ${libgcj}"
 597     ;;
 598   i[[3456789]]86-*-linux*)
 599     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 600     # not build java stuff by default.
 601     case "${target}" in
 602       *-*-*libc1*)
 603         noconfigdirs="$noconfigdirs ${libgcj}";;
 604     esac
 605
 606     # This section makes it possible to build newlib natively on linux.
 607     # If we are using a cross compiler then don't configure newlib.
 608     if test x${is_cross_compiler} != xno ; then
 609       noconfigdirs="$noconfigdirs target-newlib"
 610     fi
 611     noconfigdirs="$noconfigdirs target-libgloss"
 612     # If we are not using a cross compiler, do configure newlib.
 613     # Note however, that newlib will only be configured in this situation
 614     # if the --with-newlib option has been given, because otherwise
 615     # 'target-newlib' will appear in skipdirs.
 616     ;;
 617   i[[3456789]]86-*-mingw32*)
 618     target_configdirs="$target_configdirs target-winsup"
 619     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 620     ;;
 621   *-*-cygwin*)
 622     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 623     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 624     # always build newlib if winsup directory is present.
 625     if test -d "$srcdir/winsup/cygwin"; then
 626       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 627     elif test -d "$srcdir/newlib"; then
 628       echo "Warning: winsup/cygwin is missing so newlib can't be built."
 629     fi
 630     ;;
 631   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 632   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 633     ;;
 634   i[[3456789]]86-*-pe)
 635     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 636     ;;
 637   i[[3456789]]86-*-sco3.2v5*)
 638     # The linker does not yet know about weak symbols in COFF,
 639     # and is not configured to handle mixed ELF and COFF.
 640     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 641     ;;
 642   i[[3456789]]86-*-sco*)
 643     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 644     ;;
 645   i[[3456789]]86-*-solaris2*)
 646     noconfigdirs="$noconfigdirs target-libgloss"
 647     ;;
 648   i[[3456789]]86-*-sysv4*)
 649     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 650     ;;
 651   i[[3456789]]86-*-beos*)
 652     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 653     ;;
 654   i[[3456789]]86-*-rdos*)
 655     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 656     ;;
 657   m32r-*-*)
 658     noconfigdirs="$noconfigdirs ${libgcj}"
 659     ;;
 660   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 661     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 662     ;;
 663   m68k-*-elf*)
 664     noconfigdirs="$noconfigdirs ${libgcj}"
 665     ;;
 666   m68k-*-coff*)
 667     noconfigdirs="$noconfigdirs ${libgcj}"
 668     ;;
 669   mcore-*-pe*)
 670   # The EPOC C++ environment does not support exceptions or rtti,
 671   # and so building libstdc++-v3 tends not to always work.
 672     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 673     ;;
 674   mmix-*-*)
 675     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 676     unsupported_languages="$unsupported_languages fortran java"
 677     ;;
 678   mn10200-*-*)
 679     noconfigdirs="$noconfigdirs ${libgcj}"
 680     ;;
 681   mn10300-*-*)
 682     noconfigdirs="$noconfigdirs ${libgcj}"
 683     ;;
 684   mt-*-*)
 685     noconfigdirs="$noconfigdirs sim"
 686     ;;
 687   powerpc-*-aix*)
 688     # copied from rs6000-*-* entry
 689     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 690     ;;
 691   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 692     target_configdirs="$target_configdirs target-winsup"
 693     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 694     # always build newlib.
 695     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 696     ;;
 697     # This is temporary until we can link against shared libraries
 698   powerpcle-*-solaris*)
 699     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 700     ;;
 701   powerpc-*-beos*)
 702     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 703     ;;
 704   powerpc-*-eabi)
 705     noconfigdirs="$noconfigdirs ${libgcj}"
 706     ;;
 707   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 708     ;;
 709   rs6000-*-lynxos*)
 710     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 711     ;;
 712   rs6000-*-aix*)
 713     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 714     ;;
 715   rs6000-*-*)
 716     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 717     ;;
 718   m68k-apollo-*)
 719     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 720     ;;
 721   mips*-*-irix5*)
 722     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 723     ;;
 724   mips*-*-irix6*)
 725     # Linking libjava exceeds command-line length limits on at least
 726     # IRIX 6.2, but not on IRIX 6.5.
 727     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 728     # <oldham@codesourcery.com>
 729     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 730     ;;
 731   mips*-*-bsd*)
 732     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 733     ;;
 734   mips64*-*-linux*)
 735     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 736     ;;
 737   mips*-*-linux*)
 738     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 739     ;;
 740   mips*-*-*)
 741     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 742     ;;
 743   romp-*-*)
 744     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 745     ;;
 746   sh-*-* | sh64-*-*)
 747     case "${host}" in
 748       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 749       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 750       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 751       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 752     esac
 753     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 754     ;;
 755   sparc-*-elf*)
 756     noconfigdirs="$noconfigdirs ${libgcj}"
 757     ;;
 758   sparc64-*-elf*)
 759     noconfigdirs="$noconfigdirs ${libgcj}"
 760     ;;
 761   sparclite-*-*)
 762     noconfigdirs="$noconfigdirs ${libgcj}"
 763     ;;
 764   sparc-*-sunos4*)
 765     noconfigdirs="$noconfigdirs ${libgcj}"
 766     if test x${is_cross_compiler} != xno ; then
 767            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 768     else
 769            use_gnu_ld=no
 770     fi
 771     ;;
 772   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 773     noconfigdirs="$noconfigdirs ${libgcj}"
 774     ;;
 775   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 776     ;;
 777   v810-*-*)
 778     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 779     ;;
 780   v850-*-*)
 781     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 782     ;;
 783   v850e-*-*)
 784     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 785     ;;
 786   v850ea-*-*)
 787     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 788     ;;
 789   vax-*-vms)
 790     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 791     ;;
 792   vax-*-*)
 793     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 794     ;;
 795   xtensa-*-*)
 796     noconfigdirs="$noconfigdirs ${libgcj}"
 797     ;;
 798   ip2k-*-*)
 799     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 800     ;;
 801   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 802     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 803     ;;
 804   *-*-lynxos*)
 805     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 806     ;;
 807   *-*-*)
 808     noconfigdirs="$noconfigdirs ${libgcj}"
 809     ;;
 810 esac
 811
 812 # If we aren't building newlib, then don't build libgloss, since libgloss
 813 # depends upon some newlib header files.
 814 case "${noconfigdirs}" in
 815   *target-libgloss*) ;;
 816   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 817 esac
 818
 819 # Work in distributions that contain no compiler tools, like Autoconf.
 820 tentative_cc=""
 821 host_makefile_frag=/dev/null
 822 if test -d ${srcdir}/config ; then
 823 case "${host}" in
 824   m68k-hp-hpux*)
 825     # Avoid "too much defining" errors from HPUX compiler.
 826     tentative_cc="cc -Wp,-H256000"
 827     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 828     # If it's HP/UX ar, this should be harmless.
 829     RANLIB="ar ts"
 830     ;;
 831   m68k-apollo-sysv*)
 832     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 833     ;;
 834   m68k-apollo-bsd*)
 835     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 836     # chokes on bfd, the compiler won't let you assign integers to enums, and
 837     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 838     # the apollo compiler" (the preferred version of GCC could be called cc,
 839     # or whatever), but I'm not sure leaving CC as cc is any better...
 840     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 841     # Used to have BISON=yacc.
 842     tentative_cc=gcc
 843     ;;
 844   m88k-dg-dgux*)
 845     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 846     ;;
 847   m88k-harris-cxux*)
 848     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 849     tentative_cc="cc -Xa"
 850     host_makefile_frag="config/mh-cxux"
 851     ;;
 852   m88k-motorola-sysv*)
 853     ;;
 854   mips*-dec-ultrix*)
 855     tentative_cc="cc -Wf,-XNg1000"
 856     host_makefile_frag="config/mh-decstation"
 857     ;;
 858   mips*-nec-sysv4*)
 859     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 860     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 861     host_makefile_frag="config/mh-necv4"
 862     ;;
 863   mips*-sgi-irix4*)
 864     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 865     # environment.  Also bump switch table size so that cp-parse will
 866     # compile.  Bump string length limit so linker builds.
 867     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 868     ;;
 869   mips*-*-sysv4*)
 870     host_makefile_frag="config/mh-sysv4"
 871     ;;
 872   mips*-*-sysv*)
 873     # This is for a MIPS running RISC/os 4.52C.
 874
 875     # This is needed for GDB, but needs to be in the top-level make because
 876     # if a library is compiled with the bsd headers and gets linked with the
 877     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 878     # a different size).
 879     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 880     # known except to select the sysv environment.  Could we use /proc instead?
 881     # These "sysv environments" and "bsd environments" often end up being a pain.
 882     #
 883     # This is not part of CFLAGS because perhaps not all C compilers have this
 884     # option.
 885     tentative_cc="cc -systype sysv"
 886     ;;
 887   i370-ibm-opened*)
 888     tentative_cc="c89"
 889     ;;
 890   i[[3456789]]86-*-sysv5*)
 891     host_makefile_frag="config/mh-sysv5"
 892     ;;
 893   i[[3456789]]86-*-dgux*)
 894     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 895     host_makefile_frag="config/mh-dgux386"
 896     ;;
 897   i[[3456789]]86-ncr-sysv4.3*)
 898     # The MetaWare compiler will generate a copyright message unless you
 899     # turn it off by adding the -Hnocopyr flag.
 900     tentative_cc="cc -Hnocopyr"
 901     ;;
 902   i[[3456789]]86-ncr-sysv4*)
 903     # for an NCR 3000 (i486/SVR4) system.
 904     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 905     # This compiler not only emits obnoxious copyright messages every time
 906     # you run it, but it chokes and dies on a whole bunch of GNU source
 907     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 908     tentative_cc="/usr/ccs/ATT/cc"
 909     host_makefile_frag="config/mh-ncr3000"
 910     ;;
 911   i[[3456789]]86-*-sco3.2v5*)
 912     ;;
 913   i[[3456789]]86-*-sco*)
 914     # The native C compiler botches some simple uses of const.  Unfortunately,
 915     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 916     tentative_cc="cc -Dconst="
 917     host_makefile_frag="config/mh-sco"
 918     ;;
 919   i[[3456789]]86-*-udk*)
 920     host_makefile_frag="config/mh-sysv5"
 921     ;;
 922   i[[3456789]]86-*-solaris2*)
 923     host_makefile_frag="config/mh-sysv4"
 924     ;;
 925   i[[3456789]]86-*-msdosdjgpp*)
 926     host_makefile_frag="config/mh-djgpp"
 927     ;;
 928   *-cygwin*)
 929     host_makefile_frag="config/mh-cygwin"
 930     ;;
 931   *-mingw32*)
 932     ;;
 933   *-interix*)
 934     host_makefile_frag="config/mh-interix"
 935     ;;
 936   vax-*-ultrix2*)
 937     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 938     tentative_cc=gcc
 939     ;;
 940   *-*-solaris2*)
 941     host_makefile_frag="config/mh-solaris"
 942     ;;
 943   m68k-sun-sunos*)
 944     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 945     # without overflowing the jump tables (-J says to use a 32 bit table)
 946     tentative_cc="cc -J"
 947     ;;
 948   *-hp-hpux*)
 949     tentative_cc="cc -Wp,-H256000"
 950     ;;
 951   *-*-hiux*)
 952     tentative_cc="cc -Wp,-H256000"
 953     ;;
 954   rs6000-*-lynxos*)
 955     # /bin/cc is less than useful for our purposes.  Always use GCC
 956     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 957     host_makefile_frag="config/mh-lynxrs6k"
 958     ;;
 959   powerpc-*-darwin*)
 960     host_makefile_frag="config/mh-ppc-darwin"
 961     ;;
 962   powerpc-*-aix*)
 963     host_makefile_frag="config/mh-ppc-aix"
 964     ;;
 965   rs6000-*-aix*)
 966     host_makefile_frag="config/mh-ppc-aix"
 967     ;;
 968   *-*-lynxos*)
 969     # /bin/cc is less than useful for our purposes.  Always use GCC
 970     tentative_cc="/bin/gcc"
 971     ;;
 972   *-*-sysv4*)
 973     host_makefile_frag="config/mh-sysv4"
 974     ;;
 975   # This is placed last to prevent interfering with the cases above.
 976   i[[3456789]]86-*-*)
 977     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 978     host_makefile_frag="config/mh-x86omitfp"
 979     ;;
 980 esac
 981 fi
 982
 983 # If we aren't going to be using gcc, see if we can extract a definition
 984 # of CC from the fragment.
 985 # Actually, use the 'pre-extracted' version above.
 986 if test -z "${CC}" && test "${build}" = "${host}" ; then
 987   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 988   found=
 989   for dir in $PATH; do
 990     test -z "$dir" && dir=.
 991     if test -f $dir/gcc; then
 992       found=yes
 993       break
 994     fi
 995   done
 996   IFS="$save_ifs"
 997   if test -z "${found}" && test -n "${tentative_cc}" ; then
 998     CC=$tentative_cc
 999   fi
1000 fi
1001
1002 if test "${build}" != "${host}" ; then
1003   # If we are doing a Canadian Cross, in which the host and build systems
1004   # are not the same, we set reasonable default values for the tools.
1005
1006   CC=${CC-${host_alias}-gcc}
1007   CFLAGS=${CFLAGS-"-g -O2"}
1008   CXX=${CXX-${host_alias}-c++}
1009   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1010   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1011
1012 else
1013   # Set reasonable default values for some tools even if not Canadian.
1014   # Of course, these are different reasonable default values, originally
1015   # specified directly in the Makefile.
1016   # We don't export, so that autoconf can do its job.
1017   # Note that all these settings are above the fragment inclusion point
1018   # in Makefile.in, so can still be overridden by fragments.
1019   # This is all going to change when we autoconfiscate...
1020
1021   CC_FOR_BUILD="\$(CC)"
1022   AC_PROG_CC
1023
1024   # We must set the default linker to the linker used by gcc for the correct
1025   # operation of libtool.  If LD is not defined and we are using gcc, try to
1026   # set the LD default to the ld used by gcc.
1027   if test -z "$LD"; then
1028     if test "$GCC" = yes; then
1029       case $build in
1030       *-*-mingw*)
1031         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1032       *)
1033         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1034       esac
1035       case $gcc_prog_ld in
1036       # Accept absolute paths.
1037       [[\\/]* | [A-Za-z]:[\\/]*)]
1038         LD="$gcc_prog_ld" ;;
1039       esac
1040     fi
1041   fi
1042
1043   CXX=${CXX-"c++"}
1044   CFLAGS=${CFLAGS-"-g"}
1045   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1046 fi
1047
1048 ACX_PROG_GNAT
1049 ACX_PROG_CMP_IGNORE_INITIAL
1050
1051 # Check for GMP and MPFR
1052 gmplibs=
1053 gmpinc=
1054 have_gmp=yes
1055 # Specify a location for mpfr
1056 # check for this first so it ends up on the link line before gmp.
1057 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1058
1059 if test "x$with_mpfr_dir" != x; then
1060   gmpinc="-I$with_mpfr_dir"
1061   gmplibs="$with_mpfr_dir/libmpfr.a"
1062 else
1063   gmplibs="-lmpfr"
1064 fi
1065
1066 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1067
1068 if test "x$with_mpfr" != x; then
1069   gmplibs="-L$with_mpfr/lib $gmplibs"
1070   gmpinc="-I$with_mpfr/include"
1071 fi
1072
1073 # Specify a location for gmp
1074 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1075
1076 if test "x$with_gmp_dir" != x; then
1077   gmpinc="$gmpinc -I$with_gmp_dir"
1078   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1079     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1080   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1081     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1082   fi
1083   # One of the later tests will catch the error if neither library is present.
1084 else
1085   gmplibs="$gmplibs -lgmp"
1086 fi
1087
1088 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1089
1090 if test "x$with_gmp" != x; then
1091   gmplibs="-L$with_gmp/lib $gmplibs"
1092   gmpinc="-I$with_gmp/include $gmpinc"
1093 fi
1094
1095 saved_CFLAGS="$CFLAGS"
1096 CFLAGS="$CFLAGS $gmpinc"
1097 # Check GMP actually works
1098 AC_MSG_CHECKING([for correct version of gmp.h])
1099 AC_TRY_COMPILE([#include "gmp.h"],[
1100 #if __GNU_MP_VERSION < 4 || (__GNU_MP_VERSION == 4 && __GNU_MP_VERSION_MINOR < 1)
1101 choke me
1102 #endif
1103 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1104
1105 if test x"$have_gmp" = xyes; then
1106   saved_LIBS="$LIBS"
1107   LIBS="$LIBS $gmplibs"
1108   AC_MSG_CHECKING([for correct version of mpfr.h])
1109   AC_TRY_LINK([#include <gmp.h>
1110 #include <mpfr.h>],[
1111 #if MPFR_VERSION_MAJOR < 2 || (MPFR_VERSION_MAJOR == 2 && MPFR_VERSION_MINOR < 2)
1112   choke me
1113 #endif
1114   mpfr_t n; mpfr_init(n);
1115 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1116   LIBS="$saved_LIBS"
1117 fi
1118 CFLAGS="$saved_CFLAGS"
1119
1120 if test x$have_gmp != xyes; then
1121   AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.2+.  Try the --with-gmp and/or --with-mpfr options.])
1122 fi
1123
1124 # Flags needed for both GMP and/or MPFR
1125 AC_SUBST(gmplibs)
1126 AC_SUBST(gmpinc)
1127
1128 # By default, C is the only stage 1 language.
1129 stage1_languages=c
1130 AC_SUBST(stage1_languages)
1131
1132 # Figure out what language subdirectories are present.
1133 # Look if the user specified --enable-languages="..."; if not, use
1134 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1135 # go away some day.
1136 # NB:  embedded tabs in this IF block -- do not untabify
1137 if test -d ${srcdir}/gcc; then
1138   if test x"${enable_languages+set}" != xset; then
1139     if test x"${LANGUAGES+set}" = xset; then
1140       enable_languages="${LANGUAGES}"
1141         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1142     else
1143       enable_languages=all
1144     fi
1145   else
1146     if test x"${enable_languages}" = x ||
1147        test x"${enable_languages}" = xyes;
1148        then
1149       echo configure.in: --enable-languages needs at least one language argument 1>&2
1150       exit 1
1151     fi
1152   fi
1153   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1154
1155   # 'f95' is the old name for the 'fortran' language. We issue a warning
1156   # and make the substitution.
1157   case ,${enable_languages}, in
1158     *,f95,*)
1159       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1160       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1161       ;;
1162   esac
1163
1164   # First scan to see if an enabled language requires some other language.
1165   # We assume that a given config-lang.in will list all the language
1166   # front ends it requires, even if some are required indirectly.
1167   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1168     case ${lang_frag} in
1169       ..) ;;
1170       # The odd quoting in the next line works around
1171       # an apparent bug in bash 1.12 on linux.
1172       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1173       *)
1174         # From the config-lang.in, get $language, $lang_requires
1175         language=
1176         lang_requires=
1177         . ${lang_frag}
1178         for other in ${lang_requires} ; do
1179           case ,${enable_languages}, in
1180             *,$other,*) ;;
1181             *,all,*) ;;
1182             *,$language,*)
1183               echo " \`$other' language required by \`$language'; enabling" 1>&2
1184               enable_languages="${enable_languages},${other}"
1185               ;;
1186           esac
1187         done
1188         ;;
1189     esac
1190   done
1191
1192   new_enable_languages=c
1193   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1194   potential_languages=c
1195
1196   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1197     case ${lang_frag} in
1198       ..) ;;
1199       # The odd quoting in the next line works around
1200       # an apparent bug in bash 1.12 on linux.
1201       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1202       *)
1203         # From the config-lang.in, get $language, $target_libs,
1204         # $lang_dirs, $boot_language, and $build_by_default
1205         language=
1206         target_libs=
1207         lang_dirs=
1208         subdir_requires=
1209         boot_language=
1210         build_by_default=
1211         . ${lang_frag}
1212         potential_languages="${potential_languages},${language}"
1213         # This is quite sensitive to the ordering of the case statement arms.
1214         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1215           *::*:*)
1216             echo "${lang_frag} doesn't set \$language." 1>&2
1217             exit 1
1218             ;;
1219           *:ada:no:*)
1220             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1221             add_this_lang=no
1222             ;;
1223           *,${language},*:*:*:*)
1224             # Language was explicitly selected; include it.
1225             add_this_lang=yes
1226             ;;
1227           *,all,*:*:*:no)
1228             # 'all' was selected, but this is not a default language
1229             # so do not include it.
1230             add_this_lang=no
1231             ;;
1232           *,all,*:*:*:*)
1233             # 'all' was selected and this is a default language; include it.
1234             add_this_lang=yes
1235             ;;
1236           *)
1237             add_this_lang=no
1238             ;;
1239         esac
1240
1241         # Disable languages that need other directories if these aren't available.
1242         for i in $subdir_requires; do
1243           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1244           case ,${enable_languages}, in
1245             *,${language},*)
1246               # Specifically requested language; tell them.
1247               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1248               ;;
1249             *)
1250               # Silently disable.
1251               add_this_lang=no
1252               ;;
1253           esac
1254         done
1255
1256         # Disable a language that is unsupported by the target.
1257         case " $unsupported_languages " in
1258           *" $language "*)
1259             add_this_lang=no
1260             ;;
1261         esac
1262
1263         case $add_this_lang in
1264           no)
1265             # Remove language-dependent dirs.
1266             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1267             ;;
1268           *)
1269             new_enable_languages="$new_enable_languages,$language"
1270             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1271             case ${boot_language} in
1272               yes)
1273                 # Add to (comma-separated) list of stage 1 languages.
1274                 stage1_languages="${stage1_languages},${language}"
1275                 ;;
1276             esac
1277             ;;
1278         esac
1279         ;;
1280     esac
1281   done
1282
1283   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1284   if test "x$missing_languages" != x; then
1285     AC_MSG_ERROR([
1286 The following requested languages could not be built: ${missing_languages}
1287 Recognised languages are: ${potential_languages}])
1288   fi
1289
1290   if test "x$new_enable_languages" != "x$enable_languages"; then
1291     echo The following languages will be built: ${new_enable_languages}
1292   fi
1293   enable_languages="$new_enable_languages"
1294   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1295 fi
1296
1297 # Handle --disable-<component> generically.
1298 for dir in $configdirs $build_configdirs $target_configdirs ; do
1299   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1300   if eval test x\${enable_${dirname}} "=" xno ; then
1301     noconfigdirs="$noconfigdirs $dir"
1302   fi
1303 done
1304
1305 # Check for Boehm's garbage collector
1306 AC_ARG_ENABLE(objc-gc,
1307 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
1308                           the GNU Objective-C runtime.],
1309 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1310   *,objc,*:*:yes:*target-boehm-gc*)
1311     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1312     ;;
1313 esac])
1314
1315 # Make sure we only build Boehm's garbage collector if required.
1316 case ,${enable_languages},:${enable_objc_gc} in
1317   *,objc,*:yes)
1318     # Keep target-boehm-gc if requested for Objective-C.
1319     ;;
1320   *)
1321     # Otherwise remove target-boehm-gc depending on target-libjava.
1322     if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1323       noconfigdirs="$noconfigdirs target-boehm-gc"
1324     fi
1325     ;;
1326 esac
1327
1328 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1329 # $build_configdirs and $target_configdirs.
1330 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1331
1332 notsupp=""
1333 for dir in . $skipdirs $noconfigdirs ; do
1334   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1335   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1336     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1337     if test -r $srcdir/$dirname/configure ; then
1338       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1339         true
1340       else
1341         notsupp="$notsupp $dir"
1342       fi
1343     fi
1344   fi
1345   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1346     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1347     if test -r $srcdir/$dirname/configure ; then
1348       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1349         true
1350       else
1351         notsupp="$notsupp $dir"
1352       fi
1353     fi
1354   fi
1355   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1356     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1357     if test -r $srcdir/$dirname/configure ; then
1358       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1359         true
1360       else
1361         notsupp="$notsupp $dir"
1362       fi
1363     fi
1364   fi
1365 done
1366
1367 # Sometimes the tools are distributed with libiberty but with no other
1368 # libraries.  In that case, we don't want to build target-libiberty.
1369 if test -n "${target_configdirs}" ; then
1370   others=
1371   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1372     if test "$i" != "libiberty" ; then
1373       if test -r $srcdir/$i/configure ; then
1374         others=yes;
1375         break;
1376       fi
1377     fi
1378   done
1379   if test -z "${others}" ; then
1380     target_configdirs=
1381   fi
1382 fi
1383
1384 # Quietly strip out all directories which aren't configurable in this tree.
1385 # This relies on all configurable subdirectories being autoconfiscated, which
1386 # is now the case.
1387 build_configdirs_all="$build_configdirs"
1388 build_configdirs=
1389 for i in ${build_configdirs_all} ; do
1390   j=`echo $i | sed -e s/build-//g`
1391   if test -f ${srcdir}/$j/configure ; then
1392     build_configdirs="${build_configdirs} $i"
1393   fi
1394 done
1395
1396 configdirs_all="$configdirs"
1397 configdirs=
1398 for i in ${configdirs_all} ; do
1399   if test -f ${srcdir}/$i/configure ; then
1400     configdirs="${configdirs} $i"
1401   fi
1402 done
1403
1404 target_configdirs_all="$target_configdirs"
1405 target_configdirs=
1406 for i in ${target_configdirs_all} ; do
1407   j=`echo $i | sed -e s/target-//g`
1408   if test -f ${srcdir}/$j/configure ; then
1409     target_configdirs="${target_configdirs} $i"
1410   fi
1411 done
1412
1413 # Produce a warning message for the subdirs we can't configure.
1414 # This isn't especially interesting in the Cygnus tree, but in the individual
1415 # FSF releases, it's important to let people know when their machine isn't
1416 # supported by the one or two programs in a package.
1417
1418 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1419   # If $appdirs is non-empty, at least one of those directories must still
1420   # be configured, or we error out.  (E.g., if the gas release supports a
1421   # specified target in some subdirs but not the gas subdir, we shouldn't
1422   # pretend that all is well.)
1423   if test -n "$appdirs" ; then
1424     for dir in $appdirs ; do
1425       if test -r $dir/Makefile.in ; then
1426         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1427           appdirs=""
1428           break
1429         fi
1430         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1431           appdirs=""
1432           break
1433         fi
1434       fi
1435     done
1436     if test -n "$appdirs" ; then
1437       echo "*** This configuration is not supported by this package." 1>&2
1438       exit 1
1439     fi
1440   fi
1441   # Okay, some application will build, or we don't care to check.  Still
1442   # notify of subdirs not getting built.
1443   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1444   echo "    ${notsupp}" 1>&2
1445   echo "    (Any other directories should still work fine.)" 1>&2
1446 fi
1447
1448 case "$host" in
1449   *msdosdjgpp*)
1450     enable_gdbtk=no ;;
1451 esac
1452
1453 copy_dirs=
1454
1455 AC_ARG_WITH([build-sysroot],
1456   [  --with-build-sysroot=sysroot
1457                           use sysroot as the system root during the build],
1458   [if test x"$withval" != x ; then
1459      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1460    fi],
1461   [SYSROOT_CFLAGS_FOR_TARGET=])
1462 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1463
1464 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1465 # the named directory are copied to $(tooldir)/sys-include.
1466 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1467   if test x${is_cross_compiler} = xno ; then
1468     echo 1>&2 '***' --with-headers is only supported when cross compiling
1469     exit 1
1470   fi
1471   if test x"${with_headers}" != xyes ; then
1472     case "${exec_prefixoption}" in
1473     "") x=${prefix} ;;
1474     *) x=${exec_prefix} ;;
1475     esac
1476     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1477   fi
1478 fi
1479
1480 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1481 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1482 # are permitted.
1483 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1484   if test x${is_cross_compiler} = xno ; then
1485     echo 1>&2 '***' --with-libs is only supported when cross compiling
1486     exit 1
1487   fi
1488   if test x"${with_libs}" != xyes ; then
1489     # Copy the libraries in reverse order, so that files in the first named
1490     # library override files in subsequent libraries.
1491     case "${exec_prefixoption}" in
1492     "") x=${prefix} ;;
1493     *) x=${exec_prefix} ;;
1494     esac
1495     for l in ${with_libs}; do
1496       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1497     done
1498   fi
1499 fi
1500
1501 # Set with_gnu_as and with_gnu_ld as appropriate.
1502 #
1503 # This is done by determining whether or not the appropriate directory
1504 # is available, and by checking whether or not specific configurations
1505 # have requested that this magic not happen.
1506 #
1507 # The command line options always override the explicit settings in
1508 # configure.in, and the settings in configure.in override this magic.
1509 #
1510 # If the default for a toolchain is to use GNU as and ld, and you don't
1511 # want to do that, then you should use the --without-gnu-as and
1512 # --without-gnu-ld options for the configure script.
1513
1514 if test x${use_gnu_as} = x &&
1515    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1516   with_gnu_as=yes
1517   extra_host_args="$extra_host_args --with-gnu-as"
1518 fi
1519
1520 if test x${use_gnu_ld} = x &&
1521    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1522   with_gnu_ld=yes
1523   extra_host_args="$extra_host_args --with-gnu-ld"
1524 fi
1525
1526 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1527 # can detect this case.
1528
1529 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1530   with_newlib=yes
1531   extra_host_args="$extra_host_args --with-newlib"
1532 fi
1533
1534 # Handle ${copy_dirs}
1535 set fnord ${copy_dirs}
1536 shift
1537 while test $# != 0 ; do
1538   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1539     :
1540   else
1541     echo Copying $1 to $2
1542
1543     # Use the install script to create the directory and all required
1544     # parent directories.
1545     if test -d $2 ; then
1546       :
1547     else
1548       echo >config.temp
1549       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1550     fi
1551
1552     # Copy the directory, assuming we have tar.
1553     # FIXME: Should we use B in the second tar?  Not all systems support it.
1554     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1555
1556     # It is the responsibility of the user to correctly adjust all
1557     # symlinks.  If somebody can figure out how to handle them correctly
1558     # here, feel free to add the code.
1559
1560     echo $1 > $2/COPIED
1561   fi
1562   shift; shift
1563 done
1564
1565 # Determine a target-dependent exec_prefix that the installed
1566 # gcc will search in.  Keep this list sorted by triplet, with
1567 # the *-*-osname triplets last.
1568 md_exec_prefix=
1569 case "${target}" in
1570   alpha*-*-*vms*)
1571     md_exec_prefix=/gnu/lib/gcc-lib
1572     ;;
1573   i[34567]86-pc-msdosdjgpp*)
1574     md_exec_prefix=/dev/env/DJDIR/bin
1575     ;;
1576   i[34567]86-*-sco3.2v5*)
1577     if test $with_gnu_as = yes; then
1578       md_exec_prefix=/usr/gnu/bin
1579     else
1580       md_exec_prefix=/usr/ccs/bin/elf
1581     fi
1582     ;;
1583
1584   mn10300-*-* | \
1585   powerpc-*-chorusos* | \
1586   powerpc*-*-eabi* | \
1587   powerpc*-*-sysv* | \
1588   powerpc*-*-kaos* | \
1589   s390x-ibm-tpf*)
1590     md_exec_prefix=/usr/ccs/bin
1591     ;;
1592   sparc64-*-elf*)
1593     ;;
1594   v850*-*-*)
1595     md_exec_prefix=/usr/ccs/bin
1596     ;;
1597   xtensa-*-elf*)
1598     ;;
1599
1600   *-*-beos* | \
1601   *-*-elf* | \
1602   *-*-hpux* | \
1603   *-*-netware* | \
1604   *-*-nto-qnx* | \
1605   *-*-rtems* | \
1606   *-*-solaris2* | \
1607   *-*-sysv[45]* | \
1608   *-*-vxworks* | \
1609   *-wrs-windiss)
1610     md_exec_prefix=/usr/ccs/bin
1611     ;;
1612 esac
1613
1614 extra_arflags_for_target=
1615 extra_nmflags_for_target=
1616 extra_ranlibflags_for_target=
1617 target_makefile_frag=/dev/null
1618 case "${target}" in
1619   *-*-netware*)
1620     target_makefile_frag="config/mt-netware"
1621     ;;
1622   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1623     target_makefile_frag="config/mt-gnu"
1624     ;;
1625   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1626     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1627     # commands to handle both 32-bit and 64-bit objects.  These flags are
1628     # harmless if we're using GNU nm or ar.
1629     extra_arflags_for_target=" -X32_64"
1630     extra_nmflags_for_target=" -B -X32_64"
1631     ;;
1632   *-*-darwin*)
1633     # ranlib from Darwin requires the -c flag to look at common symbols.
1634     extra_ranlibflags_for_target=" -c"
1635     ;;
1636   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1637     target_makefile_frag="config/mt-wince"
1638     ;;
1639 esac
1640
1641 alphaieee_frag=/dev/null
1642 case $target in
1643   alpha*-*-*)
1644     # This just makes sure to use the -mieee option to build target libs.
1645     # This should probably be set individually by each library.
1646     alphaieee_frag="config/mt-alphaieee"
1647     ;;
1648 esac
1649
1650 # If --enable-target-optspace always use -Os instead of -O2 to build
1651 # the target libraries, similarly if it is not specified, use -Os
1652 # on selected platforms.
1653 ospace_frag=/dev/null
1654 case "${enable_target_optspace}:${target}" in
1655   yes:*)
1656     ospace_frag="config/mt-ospace"
1657     ;;
1658   :d30v-*)
1659     ospace_frag="config/mt-d30v"
1660     ;;
1661   :m32r-* | :d10v-* | :fr30-*)
1662     ospace_frag="config/mt-ospace"
1663     ;;
1664   no:* | :*)
1665     ;;
1666   *)
1667     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1668     ;;
1669 esac
1670
1671 # Default to using --with-stabs for certain targets.
1672 if test x${with_stabs} = x ; then
1673   case "${target}" in
1674   mips*-*-irix[[56]]*)
1675     ;;
1676   mips*-*-* | alpha*-*-osf*)
1677     with_stabs=yes;
1678     extra_host_args="${extra_host_args} --with-stabs"
1679     ;;
1680   esac
1681 fi
1682
1683 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1684 # them automatically.
1685 case "${host}" in
1686   hppa*64*-*-hpux11*)
1687     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1688     ;;
1689 esac
1690
1691 # Some systems (e.g., one of the i386-aix systems the gas testers are
1692 # using) don't handle "\$" correctly, so don't use it here.
1693 tooldir='${exec_prefix}'/${target_alias}
1694 build_tooldir=${tooldir}
1695
1696 # Create a .gdbinit file which runs the one in srcdir
1697 # and tells GDB to look there for source files.
1698
1699 if test -r ${srcdir}/.gdbinit ; then
1700   case ${srcdir} in
1701     .) ;;
1702     *) cat > ./.gdbinit <<EOF
1703 # ${NO_EDIT}
1704 dir ${srcdir}
1705 dir .
1706 source ${srcdir}/.gdbinit
1707 EOF
1708     ;;
1709   esac
1710 fi
1711
1712 # Make sure that the compiler is able to generate an executable.  If it
1713 # can't, we are probably in trouble.  We don't care whether we can run the
1714 # executable--we might be using a cross compiler--we only care whether it
1715 # can be created.  At this point the main configure script has set CC.
1716 we_are_ok=no
1717 echo "int main () { return 0; }" > conftest.c
1718 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1719 if test $? = 0 ; then
1720   if test -s conftest || test -s conftest.exe ; then
1721     we_are_ok=yes
1722   fi
1723 fi
1724 case $we_are_ok in
1725   no)
1726     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1727     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1728     rm -f conftest*
1729     exit 1
1730     ;;
1731 esac
1732 rm -f conftest*
1733
1734 # The Solaris /usr/ucb/cc compiler does not appear to work.
1735 case "${host}" in
1736   sparc-sun-solaris2*)
1737       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1738       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1739           could_use=
1740           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1741           if test -d /opt/cygnus/bin ; then
1742               if test "$could_use" = "" ; then
1743                   could_use="/opt/cygnus/bin"
1744               else
1745                   could_use="$could_use or /opt/cygnus/bin"
1746               fi
1747           fi
1748         if test "$could_use" = "" ; then
1749             echo "Warning: compilation may fail because you're using"
1750             echo "/usr/ucb/cc.  You should change your PATH or CC "
1751             echo "variable and rerun configure."
1752         else
1753             echo "Warning: compilation may fail because you're using"
1754             echo "/usr/ucb/cc, when you should use the C compiler from"
1755             echo "$could_use.  You should change your"
1756             echo "PATH or CC variable and rerun configure."
1757         fi
1758       fi
1759   ;;
1760 esac
1761
1762 case "${host}" in
1763   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1764   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1765   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1766 esac
1767
1768 # Record target_configdirs and the configure arguments for target and
1769 # build configuration in Makefile.
1770 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1771 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1772
1773 # Determine whether gdb needs tk/tcl or not.
1774 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1775 # and in that case we want gdb to be built without tk.  Ugh!
1776 # In fact I believe gdb is the *only* package directly dependent on tk,
1777 # so we should be able to put the 'maybe's in unconditionally and
1778 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1779 # 100% sure that that's safe though.
1780
1781 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1782 case "$enable_gdbtk" in
1783   no)
1784     GDB_TK="" ;;
1785   yes)
1786     GDB_TK="${gdb_tk}" ;;
1787   *)
1788     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1789     # distro.  Eventually someone will fix this and move Insight, nee
1790     # gdbtk to a separate directory.
1791     if test -d ${srcdir}/gdb/gdbtk ; then
1792       GDB_TK="${gdb_tk}"
1793     else
1794       GDB_TK=""
1795     fi
1796     ;;
1797 esac
1798 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1799 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1800
1801 # Strip out unwanted targets.
1802
1803 # While at that, we remove Makefiles if we were started for recursive
1804 # configuration, so that the top-level Makefile reconfigures them,
1805 # like we used to do when configure itself was recursive.
1806
1807 # Loop over modules.  $extrasub must be used with care, limiting as
1808 # much as possible the usage of range addresses.  That's because autoconf
1809 # splits the sed script to overcome limits in the number of commands,
1810 # and relying on carefully-timed sed passes may turn out to be very hard
1811 # to maintain later.  In this particular case, you just have to be careful
1812 # not to nest @if/@endif pairs, because configure will not warn you at all.
1813
1814 AC_ARG_ENABLE([bootstrap],
1815 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1816 enable_bootstrap=default)
1817
1818 # Issue errors and warnings for invalid/strange bootstrap combinations.
1819 case "$configdirs" in
1820   *gcc*) have_compiler=yes ;;
1821   *) have_compiler=no ;;
1822 esac
1823
1824 case "$have_compiler:$host:$target:$enable_bootstrap" in
1825   *:*:*:no) ;;
1826
1827   # Default behavior.  Enable bootstrap if we have a compiler
1828   # and we are in a native configuration.
1829   yes:$build:$build:default)
1830     enable_bootstrap=yes ;;
1831
1832   *:*:*:default)
1833     enable_bootstrap=no ;;
1834
1835   # We have a compiler and we are in a native configuration, bootstrap is ok
1836   yes:$build:$build:yes)
1837     ;;
1838
1839   # Other configurations, but we have a compiler.  Assume the user knows
1840   # what he's doing.
1841   yes:*:*:yes)
1842     AC_MSG_WARN([trying to bootstrap a cross compiler])
1843     ;;
1844
1845   # No compiler: if they passed --enable-bootstrap explicitly, fail
1846   no:*:*:yes)
1847     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1848
1849   # Fail if wrong command line
1850   *)
1851     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1852     ;;
1853 esac
1854
1855 # Adjust the toplevel makefile according to whether bootstrap was selected.
1856 case "$enable_bootstrap" in
1857   yes)
1858     bootstrap_suffix=bootstrap ;;
1859   no)
1860     bootstrap_suffix=no-bootstrap ;;
1861 esac
1862
1863 for module in ${build_configdirs} ; do
1864   if test -z "${no_recursion}" \
1865      && test -f ${build_subdir}/${module}/Makefile; then
1866     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1867     rm -f ${build_subdir}/${module}/Makefile
1868   fi
1869   extrasub="$extrasub
1870 /^@if build-$module\$/d
1871 /^@endif build-$module\$/d
1872 /^@if build-$module-$bootstrap_suffix\$/d
1873 /^@endif build-$module-$bootstrap_suffix\$/d"
1874 done
1875 for module in ${configdirs} ; do
1876   if test -z "${no_recursion}"; then
1877     for file in stage*-${module}/Makefile ${module}/Makefile; do
1878       if test -f ${file}; then
1879         echo 1>&2 "*** removing ${file} to force reconfigure"
1880         rm -f ${file}
1881       fi
1882     done
1883   fi
1884   extrasub="$extrasub
1885 /^@if $module\$/d
1886 /^@endif $module\$/d
1887 /^@if $module-$bootstrap_suffix\$/d
1888 /^@endif $module-$bootstrap_suffix\$/d"
1889 done
1890 for module in ${target_configdirs} ; do
1891   if test -z "${no_recursion}" \
1892      && test -f ${target_subdir}/${module}/Makefile; then
1893     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1894     rm -f ${target_subdir}/${module}/Makefile
1895   fi
1896   extrasub="$extrasub
1897 /^@if target-$module\$/d
1898 /^@endif target-$module\$/d
1899 /^@if target-$module-$bootstrap_suffix\$/d
1900 /^@endif target-$module-$bootstrap_suffix\$/d"
1901 done
1902
1903 extrasub="$extrasub
1904 /^@if /,/^@endif /d"
1905
1906 # Create the serialization dependencies.  This uses a temporary file.
1907
1908 AC_ARG_ENABLE([serial-configure],
1909 [  --enable-serial-[{host,target,build}-]configure
1910                           Force sequential configuration of
1911                           sub-packages for the host, target or build
1912                           machine, or all sub-packages])
1913
1914 case ${enable_serial_configure} in
1915   yes)
1916     enable_serial_build_configure=yes
1917     enable_serial_host_configure=yes
1918     enable_serial_target_configure=yes
1919     ;;
1920 esac
1921
1922 # These force 'configure's to be done one at a time, to avoid problems
1923 # with contention over a shared config.cache.
1924 rm -f serdep.tmp
1925 echo '# serdep.tmp' > serdep.tmp
1926 olditem=
1927 test "x${enable_serial_build_configure}" = xyes &&
1928 for item in ${build_configdirs} ; do
1929   case ${olditem} in
1930     "") ;;
1931     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1932   esac
1933   olditem=${item}
1934 done
1935 olditem=
1936 test "x${enable_serial_host_configure}" = xyes &&
1937 for item in ${configdirs} ; do
1938   case ${olditem} in
1939     "") ;;
1940     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1941   esac
1942   olditem=${item}
1943 done
1944 olditem=
1945 test "x${enable_serial_target_configure}" = xyes &&
1946 for item in ${target_configdirs} ; do
1947   case ${olditem} in
1948     "") ;;
1949     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1950   esac
1951   olditem=${item}
1952 done
1953 serialization_dependencies=serdep.tmp
1954 AC_SUBST_FILE(serialization_dependencies)
1955
1956 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1957 # target and nonopt.  These are the ones we might not want to pass
1958 # down to subconfigures.  Also strip program-prefix, program-suffix,
1959 # and program-transform-name, so that we can pass down a consistent
1960 # program-transform-name.  If autoconf has put single quotes around
1961 # any of these arguments (because they contain shell metacharacters)
1962 # then this will fail; in practice this only happens for
1963 # --program-transform-name, so be sure to override --program-transform-name
1964 # at the end of the argument list.
1965 # These will be expanded by make, so quote '$'.
1966 cat <<\EOF_SED > conftestsed
1967 s/ --no[[^ ]]*/ /g
1968 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1969 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1970 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1971 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1972 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1973 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1974 s/ -cache-file[[= ]][[^ ]]*//g
1975 s/ -srcdir[[= ]][[^ ]]*//g
1976 s/ -host[[= ]][[^ ]]*//g
1977 s/ -build[[= ]][[^ ]]*//g
1978 s/ -target[[= ]][[^ ]]*//g
1979 s/ -program-prefix[[= ]][[^ ]]*//g
1980 s/ -program-suffix[[= ]][[^ ]]*//g
1981 s/ -program-transform-name[[= ]][[^ ]]*//g
1982 s/ [[^' -][^ ]*] / /
1983 s/^ *//;s/ *$//
1984 s,\$,$$,g
1985 EOF_SED
1986 sed -f conftestsed <<EOF_SED > conftestsed.out
1987  ${ac_configure_args}
1988 EOF_SED
1989 baseargs=`cat conftestsed.out`
1990 rm -f conftestsed conftestsed.out
1991
1992 # Add in --program-transform-name, after --program-prefix and
1993 # --program-suffix have been applied to it.  Autoconf has already
1994 # doubled dollar signs and backslashes in program_transform_name; we want
1995 # the backslashes un-doubled, and then the entire thing wrapped in single
1996 # quotes, because this will be expanded first by make and then by the shell.
1997 # Also, because we want to override the logic in subdir configure scripts to
1998 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1999 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2000 ${program_transform_name}
2001 EOF_SED
2002 gcc_transform_name=`cat conftestsed.out`
2003 rm -f conftestsed.out
2004 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2005
2006 # For the build-side libraries, we just need to pretend we're native,
2007 # and not use the same cache file.  Multilibs are neither needed nor
2008 # desired.
2009 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
2010
2011 # For host modules, accept cache file option, or specification as blank.
2012 case "${cache_file}" in
2013 "") # empty
2014   cache_file_option="" ;;
2015 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2016   cache_file_option="--cache-file=${cache_file}" ;;
2017 *) # relative path
2018   cache_file_option="--cache-file=../${cache_file}" ;;
2019 esac
2020
2021 # Host dirs don't like to share a cache file either, horribly enough.
2022 # This seems to be due to autoconf 2.5x stupidity.
2023 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
2024
2025 target_configargs=${baseargs}
2026
2027 # Passing a --with-cross-host argument lets the target libraries know
2028 # whether they are being built with a cross-compiler or being built
2029 # native.  However, it would be better to use other mechanisms to make the
2030 # sorts of decisions they want to make on this basis.  Please consider
2031 # this option to be deprecated.  FIXME.
2032 if test x${is_cross_compiler} = xyes ; then
2033   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2034 fi
2035
2036 # Default to --enable-multilib.
2037 if test x${enable_multilib} = x ; then
2038   target_configargs="--enable-multilib ${target_configargs}"
2039 fi
2040
2041 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2042 # changed from the earlier setting of with_newlib.
2043 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2044   target_configargs="--with-newlib ${target_configargs}"
2045 fi
2046
2047 # Different target subdirs use different values of certain variables
2048 # (notably CXX).  Worse, multilibs use *lots* of different values.
2049 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2050 # it doesn't automatically accept command-line overrides of them.
2051 # This means it's not safe for target subdirs to share a cache file,
2052 # which is disgusting, but there you have it.  Hopefully this can be
2053 # fixed in future.  It's still worthwhile to use a cache file for each
2054 # directory.  I think.
2055
2056 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2057 # We need to pass --target, as newer autoconf's requires consistency
2058 # for target_alias and gcc doesn't manage it consistently.
2059 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2060
2061 FLAGS_FOR_TARGET=
2062 case " $target_configdirs " in
2063  *" newlib "*)
2064   case " $target_configargs " in
2065   *" --with-newlib "*)
2066    case "$target" in
2067    *-cygwin*)
2068      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' ;;
2069    esac
2070
2071    # If we're not building GCC, don't discard standard headers.
2072    if test -d ${srcdir}/gcc; then
2073      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2074
2075      if test "${build}" != "${host}"; then
2076        # On Canadian crosses, CC_FOR_TARGET will have already been set
2077        # by `configure', so we won't have an opportunity to add -Bgcc/
2078        # to it.  This is right: we don't want to search that directory
2079        # for binaries, but we want the header files in there, so add
2080        # them explicitly.
2081        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2082
2083        # Someone might think of using the pre-installed headers on
2084        # Canadian crosses, in case the installed compiler is not fully
2085        # compatible with the compiler being built.  In this case, it
2086        # would be better to flag an error than risking having
2087        # incompatible object files being constructed.  We can't
2088        # guarantee that an error will be flagged, but let's hope the
2089        # compiler will do it, when presented with incompatible header
2090        # files.
2091      fi
2092    fi
2093
2094    case "${target}-${is_cross_compiler}" in
2095    i[[3456789]]86-*-linux*-no)
2096       # Here host == target, so we don't need to build gcc,
2097       # so we don't want to discard standard headers.
2098       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2099       ;;
2100    *)
2101       # If we're building newlib, use its generic headers last, but search
2102       # for any libc-related directories first (so make it the last -B
2103       # switch).
2104       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2105       ;;
2106    esac
2107    ;;
2108   esac
2109   ;;
2110 esac
2111 case "$target" in
2112 *-mingw*)
2113   # Can't be handled as Cygwin above since Mingw does not use newlib.
2114   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include' ;;
2115 esac
2116
2117 # Allow the user to override the flags for
2118 # our build compiler if desired.
2119 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2120
2121 # On Canadian crosses, we'll be searching the right directories for
2122 # the previously-installed cross compiler, so don't bother to add
2123 # flags for directories within the install tree of the compiler
2124 # being built; programs in there won't even run.
2125 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2126   # Search for pre-installed headers if nothing else fits.
2127   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2128 fi
2129
2130 if test "x${use_gnu_ld}" = x &&
2131    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2132   # Arrange for us to find uninstalled linker scripts.
2133   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2134 fi
2135
2136 # Search for other target-specific linker scripts and such.
2137 case "${target}" in
2138   m32c-*-* )
2139     if test -d ${srcdir}/libgloss/m32c; then
2140       # This is for crt0.o
2141       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2142       # This is for r8c.ld
2143       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2144       # This is for libnosys.a
2145       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2146     fi
2147     ;;
2148 esac
2149
2150 # Makefile fragments.
2151 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2152 do
2153   eval fragval=\$$frag
2154   if test $fragval != /dev/null; then
2155     eval $frag=${srcdir}/$fragval
2156   fi
2157 done
2158 AC_SUBST_FILE(host_makefile_frag)
2159 AC_SUBST_FILE(target_makefile_frag)
2160 AC_SUBST_FILE(alphaieee_frag)
2161 AC_SUBST_FILE(ospace_frag)
2162
2163 # Miscellanea: directories, flags, etc.
2164 AC_SUBST(RPATH_ENVVAR)
2165 AC_SUBST(tooldir)
2166 AC_SUBST(build_tooldir)
2167 AC_SUBST(CONFIGURE_GDB_TK)
2168 AC_SUBST(GDB_TK)
2169 AC_SUBST(INSTALL_GDB_TK)
2170
2171 # Build module lists & subconfigure args.
2172 AC_SUBST(build_configargs)
2173 AC_SUBST(build_configdirs)
2174
2175 # Host module lists & subconfigure args.
2176 AC_SUBST(host_configargs)
2177 AC_SUBST(configdirs)
2178
2179 # Target module lists & subconfigure args.
2180 AC_SUBST(target_configargs)
2181
2182
2183 # Build tools.
2184 AC_SUBST(CC_FOR_BUILD)
2185 AC_SUBST(config_shell)
2186
2187 # Generate default definitions for YACC, M4, LEX and other programs that run
2188 # on the build machine.  These are used if the Makefile can't locate these
2189 # programs in objdir.
2190 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2191
2192 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2193 case " $build_configdirs " in
2194   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2195   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2196 esac
2197
2198 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2199 case " $build_configdirs " in
2200   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2201 esac
2202
2203 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2204 case " $build_configdirs " in
2205   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2206 esac
2207
2208 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2209 case " $build_configdirs " in
2210   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2211   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2212 esac
2213
2214 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2215 case " $build_configdirs " in
2216   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2217 esac
2218
2219 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2220 case " $build_configdirs " in
2221   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2222   *)
2223 changequote(,)
2224     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2225     # higher, else we use the "missing" dummy.
2226     if ${MAKEINFO} --version \
2227        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2228       :
2229     else
2230       MAKEINFO="$MISSING makeinfo"
2231     fi
2232     ;;
2233 changequote([,])
2234 esac
2235
2236 # FIXME: expect and dejagnu may become build tools?
2237
2238 AC_CHECK_PROGS(EXPECT, expect, expect)
2239 case " $configdirs " in
2240   *" expect "*)
2241     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2242     ;;
2243 esac
2244
2245 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2246 case " $configdirs " in
2247   *" dejagnu "*)
2248     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2249     ;;
2250 esac
2251
2252
2253 # Host tools.
2254 NCN_STRICT_CHECK_TOOLS(AR, ar)
2255 NCN_STRICT_CHECK_TOOLS(AS, as)
2256 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2257 NCN_STRICT_CHECK_TOOLS(LD, ld)
2258 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2259 NCN_STRICT_CHECK_TOOLS(NM, nm)
2260 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2261 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2262 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2263 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2264 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2265 AC_SUBST(CC)
2266 AC_SUBST(CXX)
2267 AC_SUBST(CFLAGS)
2268 AC_SUBST(CFLAGS_FOR_BUILD)
2269 AC_SUBST(CXXFLAGS)
2270
2271 # Target tools.
2272 AC_ARG_WITH([build-time-tools],
2273   [  --with-build-time-tools=path
2274                           use given path to find target tools during the build],
2275   [case x"$withval" in
2276      x/*) ;;
2277      *)
2278        with_build_time_tools=
2279        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2280        ;;
2281    esac],
2282   [with_build_time_tools=])
2283
2284 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2285 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2286 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2287 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2288 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2289
2290 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2291 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2292 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2293 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2294 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2295 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2296 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2297 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2298 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2299 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2300
2301 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2302
2303 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2304 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2305 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2306 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2307                 [gcc/g++ -B$$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],
2308                 c++)
2309 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2310                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2311                 c++)
2312 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2313 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2314 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2315                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2316 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2317                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2318 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2319 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2320 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2321 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2322 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2323 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2324 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2325
2326 AC_SUBST(FLAGS_FOR_TARGET)
2327 AC_SUBST(RAW_CXX_FOR_TARGET)
2328
2329 # Certain tools may need extra flags.
2330 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2331 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2332 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2333
2334 # When building target libraries, except in a Canadian cross, we use
2335 # the same toolchain as the compiler we just built.
2336 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2337 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2338 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2339 if test $host = $build; then
2340   case " $configdirs " in
2341     *" gcc "*)
2342       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2343       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2344       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2345       ;;
2346   esac
2347 fi
2348
2349 AC_SUBST(COMPILER_AS_FOR_TARGET)
2350 AC_SUBST(COMPILER_LD_FOR_TARGET)
2351 AC_SUBST(COMPILER_NM_FOR_TARGET)
2352
2353 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2354 AC_ARG_ENABLE(maintainer-mode,
2355 [  --enable-maintainer-mode enable make rules and dependencies not useful
2356                           (and sometimes confusing) to the casual installer],
2357       USE_MAINTAINER_MODE=$enableval,
2358       USE_MAINTAINER_MODE=no)
2359 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2360 AC_SUBST(MAINTAINER_MODE_TRUE)
2361 AC_SUBST(MAINTAINER_MODE_FALSE)
2362 if test "$USE_MAINTAINER_MODE" = yes; then
2363   MAINTAINER_MODE_TRUE=
2364   MAINTAINER_MODE_FALSE='#'
2365 else
2366   MAINTAINER_MODE_TRUE='#'
2367   MAINTAINER_MODE_FALSE=
2368 fi
2369 MAINT=$MAINTAINER_MODE_TRUE
2370 AC_SUBST(MAINT)dnl
2371
2372 # ---------------------
2373 # GCC bootstrap support
2374 # ---------------------
2375
2376 # Stage specific cflags for build.
2377 stage1_cflags="-g"
2378 case $build in
2379   vax-*-*)
2380     case ${GCC} in
2381       yes) stage1_cflags="-g -Wa,-J" ;;
2382       *) stage1_cflags="-g -J" ;;
2383     esac ;;
2384   powerpc-*-darwin*)
2385     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2386     # sources; use -no-cpp-precomp to get to GNU cpp.
2387     # Apple's GCC has bugs in designated initializer handling, so disable
2388     # that too.
2389     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2390     ;;
2391 esac
2392
2393 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
2394 if test "$GCC" = yes; then
2395   saved_CFLAGS="$CFLAGS"
2396
2397   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
2398   CFLAGS="$CFLAGS -fkeep-inline-functions"
2399   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
2400   AC_TRY_COMPILE(,,
2401     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
2402     [AC_MSG_RESULT([no])])
2403
2404   CFLAGS="$saved_CFLAGS"
2405 fi
2406
2407 AC_SUBST(stage1_cflags)
2408
2409 # Enable -Werror in bootstrap stage2 and later.
2410 # Change the default to "no" on release branches.
2411 AC_ARG_ENABLE(werror,
2412 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2413 [enable_werror=yes])
2414 case ${enable_werror} in
2415   yes) stage2_werror_flag="--enable-werror-always" ;;
2416   *) stage2_werror_flag="" ;;
2417 esac
2418 AC_SUBST(stage2_werror_flag)
2419
2420 # Flags needed to enable html installing and building
2421 AC_ARG_WITH(datarootdir,
2422 [  --with-datarootdir   Use datarootdir as the data root directory.],
2423 [datarootdir="\${prefix}/${withval}"],
2424 [datarootdir="\${prefix}/share"])
2425
2426 AC_ARG_WITH(docdir,
2427 [  --with-docdir        Install documentation in this directory.],
2428 [docdir="\${prefix}/${withval}"],
2429 [docdir="\${datarootdir}/doc"])
2430
2431 AC_ARG_WITH(htmldir,
2432 [  --with-htmldir       Install html in this directory.],
2433 [htmldir="\${prefix}/${withval}"],
2434 [htmldir="\${docdir}"])
2435
2436 AC_SUBST(datarootdir)
2437 AC_SUBST(docdir)
2438 AC_SUBST(htmldir)
2439
2440 AC_OUTPUT(Makefile)