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 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 -d ${srcdir}/gcc && test x$have_gmp != xyes; then
1121   AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.2+.
1122 Try the --with-gmp and/or --with-mpfr options to specify their locations.
1123 Copies of these libraries' source code can be found at their respective
1124 hosting sites as well as at ftp://gcc.gnu.org/pub/gcc/infrastructure/.
1125 See also http://gcc.gnu.org/install/prerequisites.html for additional info.])
1126 fi
1127
1128 # Flags needed for both GMP and/or MPFR
1129 AC_SUBST(gmplibs)
1130 AC_SUBST(gmpinc)
1131
1132 # By default, C is the only stage 1 language.
1133 stage1_languages=c
1134 AC_SUBST(stage1_languages)
1135
1136 # Figure out what language subdirectories are present.
1137 # Look if the user specified --enable-languages="..."; if not, use
1138 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1139 # go away some day.
1140 # NB:  embedded tabs in this IF block -- do not untabify
1141 if test -d ${srcdir}/gcc; then
1142   if test x"${enable_languages+set}" != xset; then
1143     if test x"${LANGUAGES+set}" = xset; then
1144       enable_languages="${LANGUAGES}"
1145         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1146     else
1147       enable_languages=all
1148     fi
1149   else
1150     if test x"${enable_languages}" = x ||
1151        test x"${enable_languages}" = xyes;
1152        then
1153       echo configure.in: --enable-languages needs at least one language argument 1>&2
1154       exit 1
1155     fi
1156   fi
1157   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1158
1159   # 'f95' is the old name for the 'fortran' language. We issue a warning
1160   # and make the substitution.
1161   case ,${enable_languages}, in
1162     *,f95,*)
1163       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1164       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1165       ;;
1166   esac
1167
1168   # First scan to see if an enabled language requires some other language.
1169   # We assume that a given config-lang.in will list all the language
1170   # front ends it requires, even if some are required indirectly.
1171   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1172     case ${lang_frag} in
1173       ..) ;;
1174       # The odd quoting in the next line works around
1175       # an apparent bug in bash 1.12 on linux.
1176       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1177       *)
1178         # From the config-lang.in, get $language, $lang_requires
1179         language=
1180         lang_requires=
1181         . ${lang_frag}
1182         for other in ${lang_requires} ; do
1183           case ,${enable_languages}, in
1184             *,$other,*) ;;
1185             *,all,*) ;;
1186             *,$language,*)
1187               echo " \`$other' language required by \`$language'; enabling" 1>&2
1188               enable_languages="${enable_languages},${other}"
1189               ;;
1190           esac
1191         done
1192         ;;
1193     esac
1194   done
1195
1196   new_enable_languages=c
1197   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1198   potential_languages=c
1199
1200   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1201     case ${lang_frag} in
1202       ..) ;;
1203       # The odd quoting in the next line works around
1204       # an apparent bug in bash 1.12 on linux.
1205       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1206       *)
1207         # From the config-lang.in, get $language, $target_libs,
1208         # $lang_dirs, $boot_language, and $build_by_default
1209         language=
1210         target_libs=
1211         lang_dirs=
1212         subdir_requires=
1213         boot_language=
1214         build_by_default=
1215         . ${lang_frag}
1216         potential_languages="${potential_languages},${language}"
1217         # This is quite sensitive to the ordering of the case statement arms.
1218         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1219           *::*:*)
1220             echo "${lang_frag} doesn't set \$language." 1>&2
1221             exit 1
1222             ;;
1223           *:ada:no:*)
1224             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1225             add_this_lang=no
1226             ;;
1227           *,${language},*:*:*:*)
1228             # Language was explicitly selected; include it.
1229             add_this_lang=yes
1230             ;;
1231           *,all,*:*:*:no)
1232             # 'all' was selected, but this is not a default language
1233             # so do not include it.
1234             add_this_lang=no
1235             ;;
1236           *,all,*:*:*:*)
1237             # 'all' was selected and this is a default language; include it.
1238             add_this_lang=yes
1239             ;;
1240           *)
1241             add_this_lang=no
1242             ;;
1243         esac
1244
1245         # Disable languages that need other directories if these aren't available.
1246         for i in $subdir_requires; do
1247           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1248           case ,${enable_languages}, in
1249             *,${language},*)
1250               # Specifically requested language; tell them.
1251               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1252               ;;
1253             *)
1254               # Silently disable.
1255               add_this_lang=no
1256               ;;
1257           esac
1258         done
1259
1260         # Disable a language that is unsupported by the target.
1261         case " $unsupported_languages " in
1262           *" $language "*)
1263             add_this_lang=no
1264             ;;
1265         esac
1266
1267         case $add_this_lang in
1268           no)
1269             # Remove language-dependent dirs.
1270             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1271             ;;
1272           *)
1273             new_enable_languages="$new_enable_languages,$language"
1274             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1275             case ${boot_language} in
1276               yes)
1277                 # Add to (comma-separated) list of stage 1 languages.
1278                 stage1_languages="${stage1_languages},${language}"
1279                 ;;
1280             esac
1281             ;;
1282         esac
1283         ;;
1284     esac
1285   done
1286
1287   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1288   if test "x$missing_languages" != x; then
1289     AC_MSG_ERROR([
1290 The following requested languages could not be built: ${missing_languages}
1291 Recognised languages are: ${potential_languages}])
1292   fi
1293
1294   if test "x$new_enable_languages" != "x$enable_languages"; then
1295     echo The following languages will be built: ${new_enable_languages}
1296   fi
1297   enable_languages="$new_enable_languages"
1298   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1299 fi
1300
1301 # Handle --disable-<component> generically.
1302 for dir in $configdirs $build_configdirs $target_configdirs ; do
1303   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1304   if eval test x\${enable_${dirname}} "=" xno ; then
1305     noconfigdirs="$noconfigdirs $dir"
1306   fi
1307 done
1308
1309 # Check for Boehm's garbage collector
1310 AC_ARG_ENABLE(objc-gc,
1311 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
1312                           the GNU Objective-C runtime.],
1313 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1314   *,objc,*:*:yes:*target-boehm-gc*)
1315     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1316     ;;
1317 esac])
1318
1319 # Make sure we only build Boehm's garbage collector if required.
1320 case ,${enable_languages},:${enable_objc_gc} in
1321   *,objc,*:yes)
1322     # Keep target-boehm-gc if requested for Objective-C.
1323     ;;
1324   *)
1325     # Otherwise remove target-boehm-gc depending on target-libjava.
1326     if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1327       noconfigdirs="$noconfigdirs target-boehm-gc"
1328     fi
1329     ;;
1330 esac
1331
1332 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1333 # $build_configdirs and $target_configdirs.
1334 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1335
1336 notsupp=""
1337 for dir in . $skipdirs $noconfigdirs ; do
1338   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1339   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1340     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1341     if test -r $srcdir/$dirname/configure ; then
1342       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1343         true
1344       else
1345         notsupp="$notsupp $dir"
1346       fi
1347     fi
1348   fi
1349   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1350     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1351     if test -r $srcdir/$dirname/configure ; then
1352       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1353         true
1354       else
1355         notsupp="$notsupp $dir"
1356       fi
1357     fi
1358   fi
1359   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1360     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1361     if test -r $srcdir/$dirname/configure ; then
1362       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1363         true
1364       else
1365         notsupp="$notsupp $dir"
1366       fi
1367     fi
1368   fi
1369 done
1370
1371 # Sometimes the tools are distributed with libiberty but with no other
1372 # libraries.  In that case, we don't want to build target-libiberty.
1373 if test -n "${target_configdirs}" ; then
1374   others=
1375   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1376     if test "$i" != "libiberty" ; then
1377       if test -r $srcdir/$i/configure ; then
1378         others=yes;
1379         break;
1380       fi
1381     fi
1382   done
1383   if test -z "${others}" ; then
1384     target_configdirs=
1385   fi
1386 fi
1387
1388 # Quietly strip out all directories which aren't configurable in this tree.
1389 # This relies on all configurable subdirectories being autoconfiscated, which
1390 # is now the case.
1391 build_configdirs_all="$build_configdirs"
1392 build_configdirs=
1393 for i in ${build_configdirs_all} ; do
1394   j=`echo $i | sed -e s/build-//g`
1395   if test -f ${srcdir}/$j/configure ; then
1396     build_configdirs="${build_configdirs} $i"
1397   fi
1398 done
1399
1400 configdirs_all="$configdirs"
1401 configdirs=
1402 for i in ${configdirs_all} ; do
1403   if test -f ${srcdir}/$i/configure ; then
1404     configdirs="${configdirs} $i"
1405   fi
1406 done
1407
1408 target_configdirs_all="$target_configdirs"
1409 target_configdirs=
1410 for i in ${target_configdirs_all} ; do
1411   j=`echo $i | sed -e s/target-//g`
1412   if test -f ${srcdir}/$j/configure ; then
1413     target_configdirs="${target_configdirs} $i"
1414   fi
1415 done
1416
1417 # Produce a warning message for the subdirs we can't configure.
1418 # This isn't especially interesting in the Cygnus tree, but in the individual
1419 # FSF releases, it's important to let people know when their machine isn't
1420 # supported by the one or two programs in a package.
1421
1422 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1423   # If $appdirs is non-empty, at least one of those directories must still
1424   # be configured, or we error out.  (E.g., if the gas release supports a
1425   # specified target in some subdirs but not the gas subdir, we shouldn't
1426   # pretend that all is well.)
1427   if test -n "$appdirs" ; then
1428     for dir in $appdirs ; do
1429       if test -r $dir/Makefile.in ; then
1430         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1431           appdirs=""
1432           break
1433         fi
1434         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1435           appdirs=""
1436           break
1437         fi
1438       fi
1439     done
1440     if test -n "$appdirs" ; then
1441       echo "*** This configuration is not supported by this package." 1>&2
1442       exit 1
1443     fi
1444   fi
1445   # Okay, some application will build, or we don't care to check.  Still
1446   # notify of subdirs not getting built.
1447   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1448   echo "    ${notsupp}" 1>&2
1449   echo "    (Any other directories should still work fine.)" 1>&2
1450 fi
1451
1452 case "$host" in
1453   *msdosdjgpp*)
1454     enable_gdbtk=no ;;
1455 esac
1456
1457 copy_dirs=
1458
1459 AC_ARG_WITH([build-sysroot],
1460   [  --with-build-sysroot=sysroot
1461                           use sysroot as the system root during the build],
1462   [if test x"$withval" != x ; then
1463      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1464    fi],
1465   [SYSROOT_CFLAGS_FOR_TARGET=])
1466 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1467
1468 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1469 # the named directory are copied to $(tooldir)/sys-include.
1470 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1471   if test x${is_cross_compiler} = xno ; then
1472     echo 1>&2 '***' --with-headers is only supported when cross compiling
1473     exit 1
1474   fi
1475   if test x"${with_headers}" != xyes ; then
1476     case "${exec_prefixoption}" in
1477     "") x=${prefix} ;;
1478     *) x=${exec_prefix} ;;
1479     esac
1480     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1481   fi
1482 fi
1483
1484 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1485 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1486 # are permitted.
1487 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1488   if test x${is_cross_compiler} = xno ; then
1489     echo 1>&2 '***' --with-libs is only supported when cross compiling
1490     exit 1
1491   fi
1492   if test x"${with_libs}" != xyes ; then
1493     # Copy the libraries in reverse order, so that files in the first named
1494     # library override files in subsequent libraries.
1495     case "${exec_prefixoption}" in
1496     "") x=${prefix} ;;
1497     *) x=${exec_prefix} ;;
1498     esac
1499     for l in ${with_libs}; do
1500       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1501     done
1502   fi
1503 fi
1504
1505 # Set with_gnu_as and with_gnu_ld as appropriate.
1506 #
1507 # This is done by determining whether or not the appropriate directory
1508 # is available, and by checking whether or not specific configurations
1509 # have requested that this magic not happen.
1510 #
1511 # The command line options always override the explicit settings in
1512 # configure.in, and the settings in configure.in override this magic.
1513 #
1514 # If the default for a toolchain is to use GNU as and ld, and you don't
1515 # want to do that, then you should use the --without-gnu-as and
1516 # --without-gnu-ld options for the configure script.
1517
1518 if test x${use_gnu_as} = x &&
1519    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1520   with_gnu_as=yes
1521   extra_host_args="$extra_host_args --with-gnu-as"
1522 fi
1523
1524 if test x${use_gnu_ld} = x &&
1525    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1526   with_gnu_ld=yes
1527   extra_host_args="$extra_host_args --with-gnu-ld"
1528 fi
1529
1530 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1531 # can detect this case.
1532
1533 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1534   with_newlib=yes
1535   extra_host_args="$extra_host_args --with-newlib"
1536 fi
1537
1538 # Handle ${copy_dirs}
1539 set fnord ${copy_dirs}
1540 shift
1541 while test $# != 0 ; do
1542   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1543     :
1544   else
1545     echo Copying $1 to $2
1546
1547     # Use the install script to create the directory and all required
1548     # parent directories.
1549     if test -d $2 ; then
1550       :
1551     else
1552       echo >config.temp
1553       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1554     fi
1555
1556     # Copy the directory, assuming we have tar.
1557     # FIXME: Should we use B in the second tar?  Not all systems support it.
1558     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1559
1560     # It is the responsibility of the user to correctly adjust all
1561     # symlinks.  If somebody can figure out how to handle them correctly
1562     # here, feel free to add the code.
1563
1564     echo $1 > $2/COPIED
1565   fi
1566   shift; shift
1567 done
1568
1569 # Determine a target-dependent exec_prefix that the installed
1570 # gcc will search in.  Keep this list sorted by triplet, with
1571 # the *-*-osname triplets last.
1572 md_exec_prefix=
1573 case "${target}" in
1574   alpha*-*-*vms*)
1575     md_exec_prefix=/gnu/lib/gcc-lib
1576     ;;
1577   i[34567]86-pc-msdosdjgpp*)
1578     md_exec_prefix=/dev/env/DJDIR/bin
1579     ;;
1580   i[34567]86-*-sco3.2v5*)
1581     if test $with_gnu_as = yes; then
1582       md_exec_prefix=/usr/gnu/bin
1583     else
1584       md_exec_prefix=/usr/ccs/bin/elf
1585     fi
1586     ;;
1587
1588   mn10300-*-* | \
1589   powerpc-*-chorusos* | \
1590   powerpc*-*-eabi* | \
1591   powerpc*-*-sysv* | \
1592   powerpc*-*-kaos* | \
1593   s390x-ibm-tpf*)
1594     md_exec_prefix=/usr/ccs/bin
1595     ;;
1596   sparc64-*-elf*)
1597     ;;
1598   v850*-*-*)
1599     md_exec_prefix=/usr/ccs/bin
1600     ;;
1601   xtensa-*-elf*)
1602     ;;
1603
1604   *-*-beos* | \
1605   *-*-elf* | \
1606   *-*-hpux* | \
1607   *-*-netware* | \
1608   *-*-nto-qnx* | \
1609   *-*-rtems* | \
1610   *-*-solaris2* | \
1611   *-*-sysv[45]* | \
1612   *-*-vxworks* | \
1613   *-wrs-windiss)
1614     md_exec_prefix=/usr/ccs/bin
1615     ;;
1616 esac
1617
1618 extra_arflags_for_target=
1619 extra_nmflags_for_target=
1620 extra_ranlibflags_for_target=
1621 target_makefile_frag=/dev/null
1622 case "${target}" in
1623   *-*-netware*)
1624     target_makefile_frag="config/mt-netware"
1625     ;;
1626   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1627     target_makefile_frag="config/mt-gnu"
1628     ;;
1629   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1630     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1631     # commands to handle both 32-bit and 64-bit objects.  These flags are
1632     # harmless if we're using GNU nm or ar.
1633     extra_arflags_for_target=" -X32_64"
1634     extra_nmflags_for_target=" -B -X32_64"
1635     ;;
1636   *-*-darwin*)
1637     # ranlib from Darwin requires the -c flag to look at common symbols.
1638     extra_ranlibflags_for_target=" -c"
1639     ;;
1640   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1641     target_makefile_frag="config/mt-wince"
1642     ;;
1643 esac
1644
1645 alphaieee_frag=/dev/null
1646 case $target in
1647   alpha*-*-*)
1648     # This just makes sure to use the -mieee option to build target libs.
1649     # This should probably be set individually by each library.
1650     alphaieee_frag="config/mt-alphaieee"
1651     ;;
1652 esac
1653
1654 # If --enable-target-optspace always use -Os instead of -O2 to build
1655 # the target libraries, similarly if it is not specified, use -Os
1656 # on selected platforms.
1657 ospace_frag=/dev/null
1658 case "${enable_target_optspace}:${target}" in
1659   yes:*)
1660     ospace_frag="config/mt-ospace"
1661     ;;
1662   :d30v-*)
1663     ospace_frag="config/mt-d30v"
1664     ;;
1665   :m32r-* | :d10v-* | :fr30-*)
1666     ospace_frag="config/mt-ospace"
1667     ;;
1668   no:* | :*)
1669     ;;
1670   *)
1671     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1672     ;;
1673 esac
1674
1675 # Default to using --with-stabs for certain targets.
1676 if test x${with_stabs} = x ; then
1677   case "${target}" in
1678   mips*-*-irix[[56]]*)
1679     ;;
1680   mips*-*-* | alpha*-*-osf*)
1681     with_stabs=yes;
1682     extra_host_args="${extra_host_args} --with-stabs"
1683     ;;
1684   esac
1685 fi
1686
1687 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1688 # them automatically.
1689 case "${host}" in
1690   hppa*64*-*-hpux11*)
1691     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1692     ;;
1693 esac
1694
1695 # Some systems (e.g., one of the i386-aix systems the gas testers are
1696 # using) don't handle "\$" correctly, so don't use it here.
1697 tooldir='${exec_prefix}'/${target_alias}
1698 build_tooldir=${tooldir}
1699
1700 # Create a .gdbinit file which runs the one in srcdir
1701 # and tells GDB to look there for source files.
1702
1703 if test -r ${srcdir}/.gdbinit ; then
1704   case ${srcdir} in
1705     .) ;;
1706     *) cat > ./.gdbinit <<EOF
1707 # ${NO_EDIT}
1708 dir ${srcdir}
1709 dir .
1710 source ${srcdir}/.gdbinit
1711 EOF
1712     ;;
1713   esac
1714 fi
1715
1716 # Make sure that the compiler is able to generate an executable.  If it
1717 # can't, we are probably in trouble.  We don't care whether we can run the
1718 # executable--we might be using a cross compiler--we only care whether it
1719 # can be created.  At this point the main configure script has set CC.
1720 we_are_ok=no
1721 echo "int main () { return 0; }" > conftest.c
1722 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1723 if test $? = 0 ; then
1724   if test -s conftest || test -s conftest.exe ; then
1725     we_are_ok=yes
1726   fi
1727 fi
1728 case $we_are_ok in
1729   no)
1730     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1731     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1732     rm -f conftest*
1733     exit 1
1734     ;;
1735 esac
1736 rm -f conftest*
1737
1738 # The Solaris /usr/ucb/cc compiler does not appear to work.
1739 case "${host}" in
1740   sparc-sun-solaris2*)
1741       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1742       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1743           could_use=
1744           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1745           if test -d /opt/cygnus/bin ; then
1746               if test "$could_use" = "" ; then
1747                   could_use="/opt/cygnus/bin"
1748               else
1749                   could_use="$could_use or /opt/cygnus/bin"
1750               fi
1751           fi
1752         if test "$could_use" = "" ; then
1753             echo "Warning: compilation may fail because you're using"
1754             echo "/usr/ucb/cc.  You should change your PATH or CC "
1755             echo "variable and rerun configure."
1756         else
1757             echo "Warning: compilation may fail because you're using"
1758             echo "/usr/ucb/cc, when you should use the C compiler from"
1759             echo "$could_use.  You should change your"
1760             echo "PATH or CC variable and rerun configure."
1761         fi
1762       fi
1763   ;;
1764 esac
1765
1766 case "${host}" in
1767   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1768   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1769   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1770 esac
1771
1772 # Record target_configdirs and the configure arguments for target and
1773 # build configuration in Makefile.
1774 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1775 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1776
1777 # Determine whether gdb needs tk/tcl or not.
1778 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1779 # and in that case we want gdb to be built without tk.  Ugh!
1780 # In fact I believe gdb is the *only* package directly dependent on tk,
1781 # so we should be able to put the 'maybe's in unconditionally and
1782 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1783 # 100% sure that that's safe though.
1784
1785 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1786 case "$enable_gdbtk" in
1787   no)
1788     GDB_TK="" ;;
1789   yes)
1790     GDB_TK="${gdb_tk}" ;;
1791   *)
1792     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1793     # distro.  Eventually someone will fix this and move Insight, nee
1794     # gdbtk to a separate directory.
1795     if test -d ${srcdir}/gdb/gdbtk ; then
1796       GDB_TK="${gdb_tk}"
1797     else
1798       GDB_TK=""
1799     fi
1800     ;;
1801 esac
1802 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1803 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1804
1805 # Strip out unwanted targets.
1806
1807 # While at that, we remove Makefiles if we were started for recursive
1808 # configuration, so that the top-level Makefile reconfigures them,
1809 # like we used to do when configure itself was recursive.
1810
1811 # Loop over modules.  $extrasub must be used with care, limiting as
1812 # much as possible the usage of range addresses.  That's because autoconf
1813 # splits the sed script to overcome limits in the number of commands,
1814 # and relying on carefully-timed sed passes may turn out to be very hard
1815 # to maintain later.  In this particular case, you just have to be careful
1816 # not to nest @if/@endif pairs, because configure will not warn you at all.
1817
1818 AC_ARG_ENABLE([bootstrap],
1819 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1820 enable_bootstrap=default)
1821
1822 # Issue errors and warnings for invalid/strange bootstrap combinations.
1823 case "$configdirs" in
1824   *gcc*) have_compiler=yes ;;
1825   *) have_compiler=no ;;
1826 esac
1827
1828 case "$have_compiler:$host:$target:$enable_bootstrap" in
1829   *:*:*:no) ;;
1830
1831   # Default behavior.  Enable bootstrap if we have a compiler
1832   # and we are in a native configuration.
1833   yes:$build:$build:default)
1834     enable_bootstrap=yes ;;
1835
1836   *:*:*:default)
1837     enable_bootstrap=no ;;
1838
1839   # We have a compiler and we are in a native configuration, bootstrap is ok
1840   yes:$build:$build:yes)
1841     ;;
1842
1843   # Other configurations, but we have a compiler.  Assume the user knows
1844   # what he's doing.
1845   yes:*:*:yes)
1846     AC_MSG_WARN([trying to bootstrap a cross compiler])
1847     ;;
1848
1849   # No compiler: if they passed --enable-bootstrap explicitly, fail
1850   no:*:*:yes)
1851     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1852
1853   # Fail if wrong command line
1854   *)
1855     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1856     ;;
1857 esac
1858
1859 # Adjust the toplevel makefile according to whether bootstrap was selected.
1860 case "$enable_bootstrap" in
1861   yes)
1862     bootstrap_suffix=bootstrap ;;
1863   no)
1864     bootstrap_suffix=no-bootstrap ;;
1865 esac
1866
1867 for module in ${build_configdirs} ; do
1868   if test -z "${no_recursion}" \
1869      && test -f ${build_subdir}/${module}/Makefile; then
1870     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1871     rm -f ${build_subdir}/${module}/Makefile
1872   fi
1873   extrasub="$extrasub
1874 /^@if build-$module\$/d
1875 /^@endif build-$module\$/d
1876 /^@if build-$module-$bootstrap_suffix\$/d
1877 /^@endif build-$module-$bootstrap_suffix\$/d"
1878 done
1879 for module in ${configdirs} ; do
1880   if test -z "${no_recursion}"; then
1881     for file in stage*-${module}/Makefile ${module}/Makefile; do
1882       if test -f ${file}; then
1883         echo 1>&2 "*** removing ${file} to force reconfigure"
1884         rm -f ${file}
1885       fi
1886     done
1887   fi
1888   extrasub="$extrasub
1889 /^@if $module\$/d
1890 /^@endif $module\$/d
1891 /^@if $module-$bootstrap_suffix\$/d
1892 /^@endif $module-$bootstrap_suffix\$/d"
1893 done
1894 for module in ${target_configdirs} ; do
1895   if test -z "${no_recursion}" \
1896      && test -f ${target_subdir}/${module}/Makefile; then
1897     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1898     rm -f ${target_subdir}/${module}/Makefile
1899   fi
1900   extrasub="$extrasub
1901 /^@if target-$module\$/d
1902 /^@endif target-$module\$/d
1903 /^@if target-$module-$bootstrap_suffix\$/d
1904 /^@endif target-$module-$bootstrap_suffix\$/d"
1905 done
1906
1907 extrasub="$extrasub
1908 /^@if /,/^@endif /d"
1909
1910 # Create the serialization dependencies.  This uses a temporary file.
1911
1912 AC_ARG_ENABLE([serial-configure],
1913 [  --enable-serial-[{host,target,build}-]configure
1914                           Force sequential configuration of
1915                           sub-packages for the host, target or build
1916                           machine, or all sub-packages])
1917
1918 case ${enable_serial_configure} in
1919   yes)
1920     enable_serial_build_configure=yes
1921     enable_serial_host_configure=yes
1922     enable_serial_target_configure=yes
1923     ;;
1924 esac
1925
1926 # These force 'configure's to be done one at a time, to avoid problems
1927 # with contention over a shared config.cache.
1928 rm -f serdep.tmp
1929 echo '# serdep.tmp' > serdep.tmp
1930 olditem=
1931 test "x${enable_serial_build_configure}" = xyes &&
1932 for item in ${build_configdirs} ; do
1933   case ${olditem} in
1934     "") ;;
1935     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1936   esac
1937   olditem=${item}
1938 done
1939 olditem=
1940 test "x${enable_serial_host_configure}" = xyes &&
1941 for item in ${configdirs} ; do
1942   case ${olditem} in
1943     "") ;;
1944     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1945   esac
1946   olditem=${item}
1947 done
1948 olditem=
1949 test "x${enable_serial_target_configure}" = xyes &&
1950 for item in ${target_configdirs} ; do
1951   case ${olditem} in
1952     "") ;;
1953     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1954   esac
1955   olditem=${item}
1956 done
1957 serialization_dependencies=serdep.tmp
1958 AC_SUBST_FILE(serialization_dependencies)
1959
1960 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1961 # target and nonopt.  These are the ones we might not want to pass
1962 # down to subconfigures.  Also strip program-prefix, program-suffix,
1963 # and program-transform-name, so that we can pass down a consistent
1964 # program-transform-name.  If autoconf has put single quotes around
1965 # any of these arguments (because they contain shell metacharacters)
1966 # then this will fail; in practice this only happens for
1967 # --program-transform-name, so be sure to override --program-transform-name
1968 # at the end of the argument list.
1969 # These will be expanded by make, so quote '$'.
1970 cat <<\EOF_SED > conftestsed
1971 s/ --no[[^ ]]*/ /g
1972 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1973 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1974 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1975 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1976 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1977 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1978 s/ -cache-file[[= ]][[^ ]]*//g
1979 s/ -srcdir[[= ]][[^ ]]*//g
1980 s/ -host[[= ]][[^ ]]*//g
1981 s/ -build[[= ]][[^ ]]*//g
1982 s/ -target[[= ]][[^ ]]*//g
1983 s/ -program-prefix[[= ]][[^ ]]*//g
1984 s/ -program-suffix[[= ]][[^ ]]*//g
1985 s/ -program-transform-name[[= ]][[^ ]]*//g
1986 s/ [[^' -][^ ]*] / /
1987 s/^ *//;s/ *$//
1988 s,\$,$$,g
1989 EOF_SED
1990 sed -f conftestsed <<EOF_SED > conftestsed.out
1991  ${ac_configure_args}
1992 EOF_SED
1993 baseargs=`cat conftestsed.out`
1994 rm -f conftestsed conftestsed.out
1995
1996 # Add in --program-transform-name, after --program-prefix and
1997 # --program-suffix have been applied to it.  Autoconf has already
1998 # doubled dollar signs and backslashes in program_transform_name; we want
1999 # the backslashes un-doubled, and then the entire thing wrapped in single
2000 # quotes, because this will be expanded first by make and then by the shell.
2001 # Also, because we want to override the logic in subdir configure scripts to
2002 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2003 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2004 ${program_transform_name}
2005 EOF_SED
2006 gcc_transform_name=`cat conftestsed.out`
2007 rm -f conftestsed.out
2008 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2009
2010 # For the build-side libraries, we just need to pretend we're native,
2011 # and not use the same cache file.  Multilibs are neither needed nor
2012 # desired.
2013 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
2014
2015 # For host modules, accept cache file option, or specification as blank.
2016 case "${cache_file}" in
2017 "") # empty
2018   cache_file_option="" ;;
2019 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2020   cache_file_option="--cache-file=${cache_file}" ;;
2021 *) # relative path
2022   cache_file_option="--cache-file=../${cache_file}" ;;
2023 esac
2024
2025 # Host dirs don't like to share a cache file either, horribly enough.
2026 # This seems to be due to autoconf 2.5x stupidity.
2027 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
2028
2029 target_configargs=${baseargs}
2030
2031 # Passing a --with-cross-host argument lets the target libraries know
2032 # whether they are being built with a cross-compiler or being built
2033 # native.  However, it would be better to use other mechanisms to make the
2034 # sorts of decisions they want to make on this basis.  Please consider
2035 # this option to be deprecated.  FIXME.
2036 if test x${is_cross_compiler} = xyes ; then
2037   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2038 fi
2039
2040 # Default to --enable-multilib.
2041 if test x${enable_multilib} = x ; then
2042   target_configargs="--enable-multilib ${target_configargs}"
2043 fi
2044
2045 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2046 # changed from the earlier setting of with_newlib.
2047 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2048   target_configargs="--with-newlib ${target_configargs}"
2049 fi
2050
2051 # Different target subdirs use different values of certain variables
2052 # (notably CXX).  Worse, multilibs use *lots* of different values.
2053 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2054 # it doesn't automatically accept command-line overrides of them.
2055 # This means it's not safe for target subdirs to share a cache file,
2056 # which is disgusting, but there you have it.  Hopefully this can be
2057 # fixed in future.  It's still worthwhile to use a cache file for each
2058 # directory.  I think.
2059
2060 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2061 # We need to pass --target, as newer autoconf's requires consistency
2062 # for target_alias and gcc doesn't manage it consistently.
2063 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2064
2065 FLAGS_FOR_TARGET=
2066 case " $target_configdirs " in
2067  *" newlib "*)
2068   case " $target_configargs " in
2069   *" --with-newlib "*)
2070    case "$target" in
2071    *-cygwin*)
2072      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' ;;
2073    esac
2074
2075    # If we're not building GCC, don't discard standard headers.
2076    if test -d ${srcdir}/gcc; then
2077      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2078
2079      if test "${build}" != "${host}"; then
2080        # On Canadian crosses, CC_FOR_TARGET will have already been set
2081        # by `configure', so we won't have an opportunity to add -Bgcc/
2082        # to it.  This is right: we don't want to search that directory
2083        # for binaries, but we want the header files in there, so add
2084        # them explicitly.
2085        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2086
2087        # Someone might think of using the pre-installed headers on
2088        # Canadian crosses, in case the installed compiler is not fully
2089        # compatible with the compiler being built.  In this case, it
2090        # would be better to flag an error than risking having
2091        # incompatible object files being constructed.  We can't
2092        # guarantee that an error will be flagged, but let's hope the
2093        # compiler will do it, when presented with incompatible header
2094        # files.
2095      fi
2096    fi
2097
2098    case "${target}-${is_cross_compiler}" in
2099    i[[3456789]]86-*-linux*-no)
2100       # Here host == target, so we don't need to build gcc,
2101       # so we don't want to discard standard headers.
2102       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2103       ;;
2104    *)
2105       # If we're building newlib, use its generic headers last, but search
2106       # for any libc-related directories first (so make it the last -B
2107       # switch).
2108       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2109       ;;
2110    esac
2111    ;;
2112   esac
2113   ;;
2114 esac
2115 case "$target" in
2116 *-mingw*)
2117   # Can't be handled as Cygwin above since Mingw does not use newlib.
2118   FLAGS_FOR_TARGET=$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' ;;
2119 esac
2120
2121 # Allow the user to override the flags for
2122 # our build compiler if desired.
2123 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2124
2125 # On Canadian crosses, we'll be searching the right directories for
2126 # the previously-installed cross compiler, so don't bother to add
2127 # flags for directories within the install tree of the compiler
2128 # being built; programs in there won't even run.
2129 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2130   # Search for pre-installed headers if nothing else fits.
2131   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2132 fi
2133
2134 if test "x${use_gnu_ld}" = x &&
2135    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2136   # Arrange for us to find uninstalled linker scripts.
2137   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2138 fi
2139
2140 # Search for other target-specific linker scripts and such.
2141 case "${target}" in
2142   m32c-*-* )
2143     if test -d ${srcdir}/libgloss/m32c; then
2144       # This is for crt0.o
2145       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2146       # This is for r8c.ld
2147       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2148       # This is for libnosys.a
2149       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2150     fi
2151     ;;
2152 esac
2153
2154 # Makefile fragments.
2155 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2156 do
2157   eval fragval=\$$frag
2158   if test $fragval != /dev/null; then
2159     eval $frag=${srcdir}/$fragval
2160   fi
2161 done
2162 AC_SUBST_FILE(host_makefile_frag)
2163 AC_SUBST_FILE(target_makefile_frag)
2164 AC_SUBST_FILE(alphaieee_frag)
2165 AC_SUBST_FILE(ospace_frag)
2166
2167 # Miscellanea: directories, flags, etc.
2168 AC_SUBST(RPATH_ENVVAR)
2169 AC_SUBST(tooldir)
2170 AC_SUBST(build_tooldir)
2171 AC_SUBST(CONFIGURE_GDB_TK)
2172 AC_SUBST(GDB_TK)
2173 AC_SUBST(INSTALL_GDB_TK)
2174
2175 # Build module lists & subconfigure args.
2176 AC_SUBST(build_configargs)
2177 AC_SUBST(build_configdirs)
2178
2179 # Host module lists & subconfigure args.
2180 AC_SUBST(host_configargs)
2181 AC_SUBST(configdirs)
2182
2183 # Target module lists & subconfigure args.
2184 AC_SUBST(target_configargs)
2185
2186
2187 # Build tools.
2188 AC_SUBST(CC_FOR_BUILD)
2189 AC_SUBST(config_shell)
2190
2191 # Generate default definitions for YACC, M4, LEX and other programs that run
2192 # on the build machine.  These are used if the Makefile can't locate these
2193 # programs in objdir.
2194 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2195
2196 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2197 case " $build_configdirs " in
2198   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2199   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2200 esac
2201
2202 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2203 case " $build_configdirs " in
2204   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2205 esac
2206
2207 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2208 case " $build_configdirs " in
2209   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2210 esac
2211
2212 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2213 case " $build_configdirs " in
2214   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2215   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2216 esac
2217
2218 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2219 case " $build_configdirs " in
2220   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2221 esac
2222
2223 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2224 case " $build_configdirs " in
2225   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2226   *)
2227 changequote(,)
2228     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2229     # higher, else we use the "missing" dummy.
2230     if ${MAKEINFO} --version \
2231        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2232       :
2233     else
2234       MAKEINFO="$MISSING makeinfo"
2235     fi
2236     ;;
2237 changequote([,])
2238 esac
2239
2240 # FIXME: expect and dejagnu may become build tools?
2241
2242 AC_CHECK_PROGS(EXPECT, expect, expect)
2243 case " $configdirs " in
2244   *" expect "*)
2245     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2246     ;;
2247 esac
2248
2249 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2250 case " $configdirs " in
2251   *" dejagnu "*)
2252     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2253     ;;
2254 esac
2255
2256
2257 # Host tools.
2258 NCN_STRICT_CHECK_TOOLS(AR, ar)
2259 NCN_STRICT_CHECK_TOOLS(AS, as)
2260 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2261 NCN_STRICT_CHECK_TOOLS(LD, ld)
2262 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2263 NCN_STRICT_CHECK_TOOLS(NM, nm)
2264 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2265 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2266 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2267 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2268 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2269 AC_SUBST(CC)
2270 AC_SUBST(CXX)
2271 AC_SUBST(CFLAGS)
2272 AC_SUBST(CFLAGS_FOR_BUILD)
2273 AC_SUBST(CXXFLAGS)
2274
2275 # Target tools.
2276 AC_ARG_WITH([build-time-tools],
2277   [  --with-build-time-tools=path
2278                           use given path to find target tools during the build],
2279   [case x"$withval" in
2280      x/*) ;;
2281      *)
2282        with_build_time_tools=
2283        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2284        ;;
2285    esac],
2286   [with_build_time_tools=])
2287
2288 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2289 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2290 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2291 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2292 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2293
2294 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2295 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2296 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2297 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2298 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2299 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2300 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2301 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2302 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2303 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2304
2305 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2306
2307 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2308 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2309 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2310 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2311                 [gcc/g++ -B$$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],
2312                 c++)
2313 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2314                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2315                 c++)
2316 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2317 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2318 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2319                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2320 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2321                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2322 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2323 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2324 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2325 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2326 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2327 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2328 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2329
2330 AC_SUBST(FLAGS_FOR_TARGET)
2331 AC_SUBST(RAW_CXX_FOR_TARGET)
2332
2333 # Certain tools may need extra flags.
2334 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2335 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2336 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2337
2338 # When building target libraries, except in a Canadian cross, we use
2339 # the same toolchain as the compiler we just built.
2340 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2341 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2342 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2343 if test $host = $build; then
2344   case " $configdirs " in
2345     *" gcc "*)
2346       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2347       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2348       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2349       ;;
2350   esac
2351 fi
2352
2353 AC_SUBST(COMPILER_AS_FOR_TARGET)
2354 AC_SUBST(COMPILER_LD_FOR_TARGET)
2355 AC_SUBST(COMPILER_NM_FOR_TARGET)
2356
2357 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2358 AC_ARG_ENABLE(maintainer-mode,
2359 [  --enable-maintainer-mode enable make rules and dependencies not useful
2360                           (and sometimes confusing) to the casual installer],
2361       USE_MAINTAINER_MODE=$enableval,
2362       USE_MAINTAINER_MODE=no)
2363 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2364 AC_SUBST(MAINTAINER_MODE_TRUE)
2365 AC_SUBST(MAINTAINER_MODE_FALSE)
2366 if test "$USE_MAINTAINER_MODE" = yes; then
2367   MAINTAINER_MODE_TRUE=
2368   MAINTAINER_MODE_FALSE='#'
2369 else
2370   MAINTAINER_MODE_TRUE='#'
2371   MAINTAINER_MODE_FALSE=
2372 fi
2373 MAINT=$MAINTAINER_MODE_TRUE
2374 AC_SUBST(MAINT)dnl
2375
2376 # ---------------------
2377 # GCC bootstrap support
2378 # ---------------------
2379
2380 # Stage specific cflags for build.
2381 stage1_cflags="-g"
2382 case $build in
2383   vax-*-*)
2384     case ${GCC} in
2385       yes) stage1_cflags="-g -Wa,-J" ;;
2386       *) stage1_cflags="-g -J" ;;
2387     esac ;;
2388   powerpc-*-darwin*)
2389     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2390     # sources; use -no-cpp-precomp to get to GNU cpp.
2391     # Apple's GCC has bugs in designated initializer handling, so disable
2392     # that too.
2393     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2394     ;;
2395 esac
2396
2397 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
2398 if test "$GCC" = yes; then
2399   saved_CFLAGS="$CFLAGS"
2400
2401   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
2402   CFLAGS="$CFLAGS -fkeep-inline-functions"
2403   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
2404   AC_TRY_COMPILE(,,
2405     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
2406     [AC_MSG_RESULT([no])])
2407
2408   CFLAGS="$saved_CFLAGS"
2409 fi
2410
2411 AC_SUBST(stage1_cflags)
2412
2413 # Enable -Werror in bootstrap stage2 and later.
2414 # Change the default to "no" on release branches.
2415 AC_ARG_ENABLE(werror,
2416 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2417 [enable_werror=yes])
2418 case ${enable_werror} in
2419   yes) stage2_werror_flag="--enable-werror-always" ;;
2420   *) stage2_werror_flag="" ;;
2421 esac
2422 AC_SUBST(stage2_werror_flag)
2423
2424 # Flags needed to enable html installing and building
2425 AC_ARG_WITH(datarootdir,
2426 [  --with-datarootdir   Use datarootdir as the data root directory.],
2427 [datarootdir="\${prefix}/${withval}"],
2428 [datarootdir="\${prefix}/share"])
2429
2430 AC_ARG_WITH(docdir,
2431 [  --with-docdir        Install documentation in this directory.],
2432 [docdir="\${prefix}/${withval}"],
2433 [docdir="\${datarootdir}/doc"])
2434
2435 AC_ARG_WITH(htmldir,
2436 [  --with-htmldir       Install html in this directory.],
2437 [htmldir="\${prefix}/${withval}"],
2438 [htmldir="\${docdir}"])
2439
2440 AC_SUBST(datarootdir)
2441 AC_SUBST(docdir)
2442 AC_SUBST(htmldir)
2443
2444 AC_OUTPUT(Makefile)