configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   2 #   1999, 2000, 2001, 2002, 2003, 2004 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 # Define the trigger file to make sure configure will re-run whenever
 102 # the gcc version number changes.
 103 if test "${with_gcc_version_trigger+set}" = set ; then
 104   gcc_version_trigger="$with_gcc_version_trigger"
 105   gcc_version=`grep version_string ${with_gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
 106 else
 107   # If gcc's sources are available, define the trigger file.
 108   if test -f ${topsrcdir}/gcc/version.c ; then
 109     gcc_version_trigger=${topsrcdir}/gcc/version.c
 110     gcc_version=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
 111     case "$ac_configure_args" in
 112       *--with-gcc-version-trigger=$gcc_version_trigger* )
 113         ;;
 114       * )
 115         # Add to all subconfigure arguments: build, host, and target.
 116         ac_configure_args="$ac_configure_args --with-gcc-version-trigger=$gcc_version_trigger"
 117         ;;
 118     esac
 119   fi
 120 fi
 121
 122 ### To add a new directory to the tree, first choose whether it is a target
 123 ### or a host dependent tool.  Then put it into the appropriate list
 124 ### (library or tools, host or target), doing a dependency sort.
 125
 126 # Subdirs will be configured in the order listed in build_configdirs,
 127 # configdirs, or target_configdirs; see the serialization section below.
 128
 129 # Dependency sorting is only needed when *configuration* must be done in
 130 # a particular order.  In all cases a dependency should be specified in
 131 # the Makefile, whether or not it's implicitly specified here.
 132
 133 # Double entries in build_configdirs, configdirs, or target_configdirs may
 134 # cause circular dependencies and break everything horribly.
 135
 136 # these library is used by various programs built for the build
 137 # environment
 138 #
 139 build_libs="build-libiberty"
 140
 141 # these tools are built for the build environment
 142 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 143
 144 # these libraries are used by various programs built for the host environment
 145 #
 146 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp"
 147
 148 # these tools are built for the host environment
 149 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 150 # know that we are building the simulator.
 151 # binutils, gas and ld appear in that order because it makes sense to run
 152 # "make check" in that particular order.
 153 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"
 154
 155 # libgcj represents the runtime libraries only used by gcj.
 156 libgcj="target-libffi \
 157         target-boehm-gc \
 158         target-zlib \
 159         target-qthreads \
 160         target-libjava"
 161
 162 # these libraries are built for the target environment, and are built after
 163 # the host libraries and the host tools (which may be a cross compiler)
 164 #
 165 target_libraries="target-libiberty \
 166                 target-libgloss \
 167                 target-newlib \
 168                 target-libstdc++-v3 \
 169                 target-libmudflap \
 170                 target-libgfortran \
 171                 ${libgcj} \
 172                 target-libobjc \
 173                 target-libada"
 174
 175 # these tools are built using the target libraries, and are intended to
 176 # run only in the target environment
 177 #
 178 # note: any program that *uses* libraries that are in the "target_libraries"
 179 # list belongs in this list.  those programs are also very likely
 180 # candidates for the "native_only" list which follows
 181 #
 182 target_tools="target-examples target-groff target-gperf target-rda"
 183
 184 ################################################################################
 185
 186 ## All tools belong in one of the four categories, and are assigned above
 187 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 188 ## is important because configure will choke if they ever get through.
 189 ## ${configdirs} is directories we build using the host tools.
 190 ## ${target_configdirs} is directories we build using the target tools.
 191 configdirs=`echo ${host_libs} ${host_tools}`
 192 target_configdirs=`echo ${target_libraries} ${target_tools}`
 193 build_configdirs=`echo ${build_libs} ${build_tools}`
 194
 195 ################################################################################
 196
 197 srcname="gnu development package"
 198
 199 # This gets set non-empty for some net releases of packages.
 200 appdirs=""
 201
 202 # Define is_cross_compiler to save on calls to 'test'.
 203 is_cross_compiler=
 204 if test x"${host}" = x"${target}" ; then
 205   is_cross_compiler=no
 206 else
 207   is_cross_compiler=yes
 208 fi
 209
 210 # Find the build and target subdir names.
 211 GCC_TOPLEV_SUBDIRS
 212
 213 # Skipdirs are removed silently.
 214 skipdirs=
 215 # Noconfigdirs are removed loudly.
 216 noconfigdirs=""
 217
 218 use_gnu_ld=
 219 # Make sure we don't let GNU ld be added if we didn't want it.
 220 if test x$with_gnu_ld = xno ; then
 221   use_gnu_ld=no
 222   noconfigdirs="$noconfigdirs ld"
 223 fi
 224
 225 use_gnu_as=
 226 # Make sure we don't let GNU as be added if we didn't want it.
 227 if test x$with_gnu_as = xno ; then
 228   use_gnu_as=no
 229   noconfigdirs="$noconfigdirs gas"
 230 fi
 231
 232 # some tools are so dependent upon X11 that if we're not building with X,
 233 # it's not even worth trying to configure, much less build, that tool.
 234
 235 case ${with_x} in
 236   yes | "") ;; # the default value for this tree is that X11 is available
 237   no)
 238     skipdirs="${skipdirs} tk itcl libgui"
 239     # We won't be able to build gdbtk without X.
 240     enable_gdbtk=no
 241     ;;
 242   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 243 esac
 244
 245 # Some tools are only suitable for building in a "native" situation.
 246 # Remove these if host!=target.
 247 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff gprof target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 248
 249 # Similarly, some are only suitable for cross toolchains.
 250 # Remove these if host=target.
 251 cross_only="target-libgloss target-newlib target-opcodes"
 252
 253 case $is_cross_compiler in
 254   no) skipdirs="${skipdirs} ${cross_only}" ;;
 255   yes) skipdirs="${skipdirs} ${native_only}" ;;
 256 esac
 257
 258 # If both --with-headers and --with-libs are specified, default to
 259 # --without-newlib.
 260 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 261    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 262   if test x"${with_newlib}" = x ; then
 263     with_newlib=no
 264   fi
 265 fi
 266
 267 # Recognize --with-newlib/--without-newlib.
 268 case ${with_newlib} in
 269   no) skipdirs="${skipdirs} target-newlib" ;;
 270   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 271 esac
 272
 273 # Configure extra directories which are host specific
 274
 275 case "${host}" in
 276   *-cygwin*)
 277     configdirs="$configdirs libtermcap" ;;
 278 esac
 279
 280 # Remove more programs from consideration, based on the host or
 281 # target this usually means that a port of the program doesn't
 282 # exist yet.
 283
 284 case "${host}" in
 285   hppa*64*-*-*)
 286     noconfigdirs="$noconfigdirs byacc"
 287     ;;
 288   i[[3456789]]86-*-vsta)
 289     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 290     ;;
 291   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 292     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 293     ;;
 294   i[[3456789]]86-*-mingw32*)
 295     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 296     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 297     ;;
 298   i[[3456789]]86-*-beos*)
 299     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 300     ;;
 301   *-*-cygwin*)
 302     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 303     ;;
 304   *-*-netbsd*)
 305     noconfigdirs="$noconfigdirs rcs"
 306     ;;
 307   ppc*-*-pe)
 308     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 309     ;;
 310   powerpc-*-beos*)
 311     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 312     ;;
 313   *-*-darwin*)
 314     noconfigdirs="$noconfigdirs tk itcl libgui"
 315     ;;
 316 esac
 317
 318
 319 AC_ARG_ENABLE(libada,
 320 [  --enable-libada        Builds libada directory],
 321 ENABLE_LIBADA=$enableval,
 322 ENABLE_LIBADA=yes)
 323 if test "${ENABLE_LIBADA}" != "yes" ; then
 324   noconfigdirs="$noconfigdirs target-libada"
 325 fi
 326
 327 # Save it here so that, even in case of --enable-libgcj, if the Java
 328 # front-end isn't enabled, we still get libgcj disabled.
 329 libgcj_saved=$libgcj
 330 case $enable_libgcj in
 331 yes)
 332   # If we reset it here, it won't get added to noconfigdirs in the
 333   # target-specific build rules, so it will be forcibly enabled
 334   # (unless the Java language itself isn't enabled).
 335   libgcj=
 336   ;;
 337 no)
 338   # Make sure we get it printed in the list of not supported target libs.
 339   noconfigdirs="$noconfigdirs ${libgcj}"
 340   ;;
 341 esac
 342
 343
 344 # Allow --disable-libmudflap to exclude target-libmudflap
 345 case $enable_libmudflap in
 346 yes)
 347     ;;
 348 no)
 349     noconfigdirs="$noconfigdirs target-libmudflap"
 350     ;;
 351 "")
 352     case "${target}" in
 353     *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
 354         # Enable libmudflap by default in GNU and friends.
 355         ;;
 356     *-*-freebsd*)
 357         # Enable libmudflap by default in FreeBSD.
 358         ;;
 359     *)
 360         # Disable it by default everywhere else.
 361         noconfigdirs="$noconfigdirs target-libmudflap"
 362         ;;
 363     esac
 364 esac
 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     ;;
 374   *-*-darwin*)
 375     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 376     noconfigdirs="$noconfigdirs ${libgcj}"
 377     ;;
 378   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 379     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 380     ;;
 381   *-*-freebsd*)
 382     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 383     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 384         && test -f /usr/local/include/gmp.h; then
 385       with_gmp=/usr/local
 386     fi
 387
 388     # Skip some stuff that's unsupported on some FreeBSD configurations.
 389     case "${target}" in
 390       i*86-*-*) ;;
 391       alpha*-*-*) ;;
 392       *)
 393         noconfigdirs="$noconfigdirs ${libgcj}"
 394         ;;
 395     esac
 396     ;;
 397   *-*-kaos*)
 398     # Remove unsupported stuff on all kaOS configurations.
 399     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 400     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 401     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 402     noconfigdirs="$noconfigdirs target-libgloss"
 403     ;;
 404   *-*-netbsd*)
 405     # Skip some stuff on all NetBSD configurations.
 406     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 407
 408     # Skip some stuff that's unsupported on some NetBSD configurations.
 409     case "${target}" in
 410       i*86-*-netbsdelf*) ;;
 411       arm*-*-netbsdelf*) ;;
 412       *)
 413         noconfigdirs="$noconfigdirs ${libgcj}"
 414         ;;
 415     esac
 416     ;;
 417   *-*-netware*)
 418     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 419     ;;
 420   *-*-rtems*)
 421     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 422     ;;
 423   *-*-uclinux*)
 424     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 425     ;;
 426   *-*-vxworks*)
 427     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}"
 428     ;;
 429   alpha*-dec-osf*)
 430     # ld works, but does not support shared libraries.
 431     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 432     # gas doesn't generate exception information.
 433     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 434     ;;
 435   alpha*-*-*vms*)
 436     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss build-fixincludes ${libgcj}"
 437     ;;
 438   alpha*-*-linux*)
 439     # newlib is not 64 bit ready
 440     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 441     ;;
 442   alpha*-*-*)
 443     # newlib is not 64 bit ready
 444     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 445     ;;
 446   am33_2.0-*-linux*)
 447     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 448     ;;
 449   sh-*-linux*)
 450     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 451     ;;
 452   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 453     noconfigdirs="$noconfigdirs ${libgcj}"
 454     noconfigdirs="$noconfigdirs target-examples"
 455     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 456     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 457     noconfigdirs="$noconfigdirs expect dejagnu"
 458     # the C++ libraries don't build on top of CE's C libraries
 459     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 460     noconfigdirs="$noconfigdirs target-newlib"
 461     case "${host}" in
 462       *-*-cygwin*) ;; # keep gdb and readline
 463       *) noconfigdirs="$noconfigdirs gdb readline"
 464          ;;
 465     esac
 466     ;;
 467   arc-*-*)
 468     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 469     ;;
 470   arm-semi-aof )
 471     noconfigdirs="$noconfigdirs build-fixincludes"
 472     ;;
 473   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 474     noconfigdirs="$noconfigdirs ${libgcj}"
 475     ;;
 476   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 477     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 478     ;;
 479   arm*-*-symbianelf*)
 480     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 481     ;;
 482   arm-*-pe*)
 483     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 484     ;;
 485   thumb-*-coff)
 486     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 487     ;;
 488   thumb-*-elf)
 489     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 490     ;;
 491   thumb-*-pe)
 492     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 493     ;;
 494   arm-*-riscix*)
 495     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 496     ;;
 497   avr-*-*)
 498     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 build-fixincludes ${libgcj}"
 499     ;;
 500   c4x-*-* | tic4x-*-*)
 501     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 502     ;;
 503   c54x*-*-* | tic54x-*-*)
 504     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 505     ;;
 506   cris-*-*)
 507     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 508     ;;
 509   crx-*-*)
 510     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 511     ;;
 512   d10v-*-*)
 513     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 514     ;;
 515   d30v-*-*)
 516     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 517     ;;
 518   fr30-*-elf*)
 519     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 520     ;;
 521   frv-*-*)
 522     noconfigdirs="$noconfigdirs ${libgcj}"
 523     ;;
 524   h8300*-*-*)
 525     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 526     ;;
 527   h8500-*-*)
 528     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 529     ;;
 530   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 531     noconfigdirs="$noconfigdirs build-fixincludes"
 532     ;;
 533   hppa*64*-*-linux* | parisc*64*-*-linux*)
 534     # In this case, it's because the hppa64-linux target is for
 535     # the kernel only at this point and has no libc, and thus no
 536     # headers, crt*.o, etc., all of which are needed by these.
 537     noconfigdirs="$noconfigdirs target-zlib"
 538     ;;
 539   hppa*-*-*elf* | \
 540   parisc*-*-linux* | hppa*-*-linux* | \
 541   hppa*-*-lites* | \
 542   hppa*-*-openbsd* | \
 543   hppa*64*-*-*)
 544     noconfigdirs="$noconfigdirs ${libgcj}"
 545     # Do configure ld/binutils/gas for this case.
 546     ;;
 547   hppa*-*-*)
 548     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 549     # build on HP-UX 10.20.
 550     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 551     ;;
 552   i960-*-*)
 553     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 554     ;;
 555   ia64*-*-elf*)
 556     # No gdb support yet.
 557     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 558     ;;
 559   ia64*-**-hpux*)
 560     # No gdb or ld support yet.
 561     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 562     ;;
 563   i370-*-opened*)
 564     noconfigdirs="$noconfigdirs build-fixincludes"
 565     ;;
 566   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 567     noconfigdirs="$noconfigdirs ${libgcj}"
 568     ;;
 569   i[[3456789]]86-*-linux*)
 570     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 571     # not build java stuff by default.
 572     case "${target}" in
 573       *-*-*libc1*)
 574         noconfigdirs="$noconfigdirs ${libgcj}";;
 575     esac
 576
 577     # This section makes it possible to build newlib natively on linux.
 578     # If we are using a cross compiler then don't configure newlib.
 579     if test x${is_cross_compiler} != xno ; then
 580       noconfigdirs="$noconfigdirs target-newlib"
 581     fi
 582     noconfigdirs="$noconfigdirs target-libgloss"
 583     # If we are not using a cross compiler, do configure newlib.
 584     # Note however, that newlib will only be configured in this situation
 585     # if the --with-newlib option has been given, because otherwise
 586     # 'target-newlib' will appear in skipdirs.
 587     ;;
 588   i[[3456789]]86-*-mingw32*)
 589     target_configdirs="$target_configdirs target-mingw"
 590     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj} build-fixincludes"
 591
 592     # Can't build gdb for mingw32 if not native.
 593     case "${host}" in
 594       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 595       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 596          ;;
 597     esac
 598     ;;
 599   *-*-cygwin*)
 600     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 601     noconfigdirs="$noconfigdirs target-gperf target-libgloss build-fixincludes ${libgcj}"
 602     # always build newlib if winsup directory is present.
 603     if test -d "$srcdir/winsup"; then
 604       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 605     elif test -d "$srcdir/newlib"; then
 606       echo "Warning: winsup is missing so newlib can't be built."
 607     fi
 608
 609     # Can't build gdb for Cygwin if not native.
 610     case "${host}" in
 611       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 612       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 613          ;;
 614     esac
 615     ;;
 616   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 617   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 618     noconfigdirs="$noconfigdirs build-fixincludes"
 619     ;;
 620   i[[3456789]]86-*-pe)
 621     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} build-fixincludes"
 622     ;;
 623   i[[3456789]]86-*-sco3.2v5*)
 624     # The linker does not yet know about weak symbols in COFF,
 625     # and is not configured to handle mixed ELF and COFF.
 626     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 627     ;;
 628   i[[3456789]]86-*-sco*)
 629     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 630     ;;
 631   i[[3456789]]86-*-solaris2*)
 632     noconfigdirs="$noconfigdirs target-libgloss"
 633     ;;
 634   i[[3456789]]86-*-sysv4*)
 635     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 636     ;;
 637   i[[3456789]]86-*-beos*)
 638     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 639     ;;
 640   m32r-*-*)
 641     noconfigdirs="$noconfigdirs ${libgcj}"
 642     ;;
 643   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 644     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 645     ;;
 646   m68k-*-elf*)
 647     noconfigdirs="$noconfigdirs ${libgcj}"
 648     ;;
 649   m68k-*-coff*)
 650     noconfigdirs="$noconfigdirs ${libgcj}"
 651     ;;
 652   mcore-*-pe*)
 653   # The EPOC C++ environment does not support exceptions or rtti,
 654   # and so building libstdc++-v3 tends not to always work.
 655     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 656     ;;
 657   mmix-*-*)
 658     noconfigdirs="$noconfigdirs ${libgcj} gdb libgloss"
 659     ;;
 660   mn10200-*-*)
 661     noconfigdirs="$noconfigdirs ${libgcj}"
 662     ;;
 663   mn10300-*-*)
 664     noconfigdirs="$noconfigdirs ${libgcj}"
 665     ;;
 666   powerpc-*-aix*)
 667     # copied from rs6000-*-* entry
 668     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 669     ;;
 670   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 671     target_configdirs="$target_configdirs target-winsup"
 672     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 673     # always build newlib.
 674     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 675     ;;
 676     # This is temporary until we can link against shared libraries
 677   powerpcle-*-solaris*)
 678     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 679     ;;
 680   powerpc-*-beos*)
 681     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 682     ;;
 683   powerpc-*-eabi)
 684     noconfigdirs="$noconfigdirs ${libgcj} build-fixincludes"
 685     ;;
 686   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 687     noconfigdirs="$noconfigdirs build-fixincludes"
 688     ;;
 689   rs6000-*-lynxos*)
 690     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 691     ;;
 692   rs6000-*-aix*)
 693     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 694     ;;
 695   rs6000-*-*)
 696     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 697     ;;
 698   m68k-apollo-*)
 699     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 700     ;;
 701   mips*-*-irix5*)
 702     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 703     ;;
 704   mips*-*-irix6*)
 705     # Linking libjava exceeds command-line length limits on at least
 706     # IRIX 6.2, but not on IRIX 6.5.
 707     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 708     # <oldham@codesourcery.com>
 709     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 710     ;;
 711   mips*-dec-bsd*)
 712     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 713     ;;
 714   mips*-*-bsd*)
 715     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 716     ;;
 717   mipstx39-*-*)
 718     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 719     ;;
 720   mips64*-*-linux*)
 721     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 722     ;;
 723   mips*-*-linux*)
 724     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 725     ;;
 726   mips*-*-*)
 727     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 728     ;;
 729   romp-*-*)
 730     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 731     ;;
 732   sh-*-*)
 733     case "${host}" in
 734       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 735       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 736       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 737       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 738     esac
 739     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 740     ;;
 741   sh64-*-*)
 742     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 743     ;;
 744   sparc-*-elf*)
 745     noconfigdirs="$noconfigdirs ${libgcj}"
 746     ;;
 747   sparc64-*-elf*)
 748     noconfigdirs="$noconfigdirs ${libgcj}"
 749     ;;
 750   sparclite-*-*)
 751     noconfigdirs="$noconfigdirs ${libgcj}"
 752     ;;
 753   sparc-*-sunos4*)
 754     noconfigdirs="$noconfigdirs ${libgcj}"
 755     if test x${is_cross_compiler} != xno ; then
 756            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 757     else
 758            use_gnu_ld=no
 759     fi
 760     ;;
 761   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 762     ;;
 763   v810-*-*)
 764     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 765     ;;
 766   v850-*-*)
 767     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 768     ;;
 769   v850e-*-*)
 770     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 771     ;;
 772   v850ea-*-*)
 773     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 774     ;;
 775   vax-*-vms)
 776     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 777     ;;
 778   vax-*-*)
 779     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 780     ;;
 781   xtensa-*-*)
 782     noconfigdirs="$noconfigdirs ${libgcj}"
 783     ;;
 784   ip2k-*-*)
 785     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 786     ;;
 787   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 788     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 789     ;;
 790   *-*-lynxos*)
 791     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 792     ;;
 793   *-*-*)
 794     noconfigdirs="$noconfigdirs ${libgcj}"
 795     ;;
 796 esac
 797
 798 # If we aren't building newlib, then don't build libgloss, since libgloss
 799 # depends upon some newlib header files.
 800 case "${noconfigdirs}" in
 801   *target-libgloss*) ;;
 802   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 803 esac
 804
 805 # Work in distributions that contain no compiler tools, like Autoconf.
 806 tentative_cc=""
 807 host_makefile_frag=/dev/null
 808 if test -d ${srcdir}/config ; then
 809 case "${host}" in
 810   m68k-hp-hpux*)
 811     # Avoid "too much defining" errors from HPUX compiler.
 812     tentative_cc="cc -Wp,-H256000"
 813     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 814     # If it's HP/UX ar, this should be harmless.
 815     RANLIB="ar ts"
 816     ;;
 817   m68k-apollo-sysv*)
 818     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 819     ;;
 820   m68k-apollo-bsd*)
 821     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 822     # chokes on bfd, the compiler won't let you assign integers to enums, and
 823     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 824     # the apollo compiler" (the preferred version of GCC could be called cc,
 825     # or whatever), but I'm not sure leaving CC as cc is any better...
 826     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 827     # Used to have BISON=yacc.
 828     tentative_cc=gcc
 829     ;;
 830   m88k-dg-dgux*)
 831     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 832     ;;
 833   m88k-harris-cxux*)
 834     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 835     tentative_cc="cc -Xa"
 836     host_makefile_frag="config/mh-cxux"
 837     ;;
 838   m88k-motorola-sysv*)
 839     ;;
 840   mips*-dec-ultrix*)
 841     tentative_cc="cc -Wf,-XNg1000"
 842     host_makefile_frag="config/mh-decstation"
 843     ;;
 844   mips*-nec-sysv4*)
 845     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 846     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 847     host_makefile_frag="config/mh-necv4"
 848     ;;
 849   mips*-sgi-irix4*)
 850     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 851     # environment.  Also bump switch table size so that cp-parse will
 852     # compile.  Bump string length limit so linker builds.
 853     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 854     ;;
 855   mips*-*-sysv4*)
 856     host_makefile_frag="config/mh-sysv4"
 857     ;;
 858   mips*-*-sysv*)
 859     # This is for a MIPS running RISC/os 4.52C.
 860
 861     # This is needed for GDB, but needs to be in the top-level make because
 862     # if a library is compiled with the bsd headers and gets linked with the
 863     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 864     # a different size).
 865     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 866     # known except to select the sysv environment.  Could we use /proc instead?
 867     # These "sysv environments" and "bsd environments" often end up being a pain.
 868     #
 869     # This is not part of CFLAGS because perhaps not all C compilers have this
 870     # option.
 871     tentative_cc="cc -systype sysv"
 872     ;;
 873   i370-ibm-opened*)
 874     tentative_cc="c89"
 875     ;;
 876   i[[3456789]]86-*-sysv5*)
 877     host_makefile_frag="config/mh-sysv5"
 878     ;;
 879   i[[3456789]]86-*-dgux*)
 880     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 881     host_makefile_frag="config/mh-dgux386"
 882     ;;
 883   i[[3456789]]86-ncr-sysv4.3*)
 884     # The MetaWare compiler will generate a copyright message unless you
 885     # turn it off by adding the -Hnocopyr flag.
 886     tentative_cc="cc -Hnocopyr"
 887     ;;
 888   i[[3456789]]86-ncr-sysv4*)
 889     # for an NCR 3000 (i486/SVR4) system.
 890     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 891     # This compiler not only emits obnoxious copyright messages every time
 892     # you run it, but it chokes and dies on a whole bunch of GNU source
 893     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 894     tentative_cc="/usr/ccs/ATT/cc"
 895     host_makefile_frag="config/mh-ncr3000"
 896     ;;
 897   i[[3456789]]86-*-sco3.2v5*)
 898     ;;
 899   i[[3456789]]86-*-sco*)
 900     # The native C compiler botches some simple uses of const.  Unfortunately,
 901     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 902     tentative_cc="cc -Dconst="
 903     host_makefile_frag="config/mh-sco"
 904     ;;
 905   i[[3456789]]86-*-udk*)
 906     host_makefile_frag="config/mh-sysv5"
 907     ;;
 908   i[[3456789]]86-*-solaris2*)
 909     host_makefile_frag="config/mh-sysv4"
 910     ;;
 911   i[[3456789]]86-*-msdosdjgpp*)
 912     host_makefile_frag="config/mh-djgpp"
 913     ;;
 914   *-cygwin*)
 915     host_makefile_frag="config/mh-cygwin"
 916     ;;
 917   *-mingw32*)
 918     host_makefile_frag="config/mh-mingw32"
 919     ;;
 920   *-interix*)
 921     host_makefile_frag="config/mh-interix"
 922     ;;
 923   vax-*-ultrix2*)
 924     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 925     tentative_cc=gcc
 926     ;;
 927   *-*-solaris2*)
 928     host_makefile_frag="config/mh-solaris"
 929     ;;
 930   m68k-sun-sunos*)
 931     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 932     # without overflowing the jump tables (-J says to use a 32 bit table)
 933     tentative_cc="cc -J"
 934     ;;
 935   *-hp-hpux*)
 936     tentative_cc="cc -Wp,-H256000"
 937     ;;
 938   *-*-hiux*)
 939     tentative_cc="cc -Wp,-H256000"
 940     ;;
 941   rs6000-*-lynxos*)
 942     # /bin/cc is less than useful for our purposes.  Always use GCC
 943     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 944     host_makefile_frag="config/mh-lynxrs6k"
 945     ;;
 946   powerpc-*-darwin*)
 947     host_makefile_frag="config/mh-ppc-darwin"
 948     ;;
 949   *-*-lynxos*)
 950     # /bin/cc is less than useful for our purposes.  Always use GCC
 951     tentative_cc="/bin/gcc"
 952     ;;
 953   *-*-sysv4*)
 954     host_makefile_frag="config/mh-sysv4"
 955     ;;
 956   # This is placed last to prevent interfering with the cases above.
 957   i[[3456789]]86-*-*)
 958     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 959     host_makefile_frag="config/mh-x86omitfp"
 960     ;;
 961 esac
 962 fi
 963
 964 # If we aren't going to be using gcc, see if we can extract a definition
 965 # of CC from the fragment.
 966 # Actually, use the 'pre-extracted' version above.
 967 if test -z "${CC}" && test "${build}" = "${host}" ; then
 968   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 969   found=
 970   for dir in $PATH; do
 971     test -z "$dir" && dir=.
 972     if test -f $dir/gcc; then
 973       found=yes
 974       break
 975     fi
 976   done
 977   IFS="$save_ifs"
 978   if test -z "${found}" && test -n "${tentative_cc}" ; then
 979     CC=$tentative_cc
 980   fi
 981 fi
 982
 983 if test "${build}" != "${host}" ; then
 984   # If we are doing a Canadian Cross, in which the host and build systems
 985   # are not the same, we set reasonable default values for the tools.
 986
 987   CC=${CC-${host_alias}-gcc}
 988   CFLAGS=${CFLAGS-"-g -O2"}
 989   CXX=${CXX-${host_alias}-c++}
 990   CXXFLAGS=${CXXFLAGS-"-g -O2"}
 991   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
 992   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
 993   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
 994   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
 995   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
 996   BUILD_PREFIX=${build_alias}-
 997   BUILD_PREFIX_1=${build_alias}-
 998
 999 else
1000   # Set reasonable default values for some tools even if not Canadian.
1001   # Of course, these are different reasonable default values, originally
1002   # specified directly in the Makefile.
1003   # We don't export, so that autoconf can do its job.
1004   # Note that all these settings are above the fragment inclusion point
1005   # in Makefile.in, so can still be overridden by fragments.
1006   # This is all going to change when we autoconfiscate...
1007
1008   CC_FOR_BUILD="\$(CC)"
1009   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
1010   BUILD_PREFIX=
1011   BUILD_PREFIX_1=loser-
1012
1013   AC_PROG_CC
1014
1015   # We must set the default linker to the linker used by gcc for the correct
1016   # operation of libtool.  If LD is not defined and we are using gcc, try to
1017   # set the LD default to the ld used by gcc.
1018   if test -z "$LD"; then
1019     if test "$GCC" = yes; then
1020       case $build in
1021       *-*-mingw*)
1022         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1023       *)
1024         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1025       esac
1026       case $gcc_prog_ld in
1027       # Accept absolute paths.
1028       [[\\/]* | [A-Za-z]:[\\/]*)]
1029         LD="$gcc_prog_ld" ;;
1030       esac
1031     fi
1032   fi
1033
1034   CXX=${CXX-"c++"}
1035   CFLAGS=${CFLAGS-"-g"}
1036   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1037 fi
1038
1039 ACX_PROG_GNAT
1040 ACX_PROG_CMP_IGNORE_INITIAL
1041
1042 # Check for GMP and MPFR
1043 gmplibs=
1044 gmpinc=
1045 have_gmp=yes
1046 # Specify a location for mpfr
1047 # check for this first so it ends up on the link line before gmp.
1048 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1049
1050 if test "x$with_mpfr_dir" != x; then
1051   gmpinc="-I$with_mpfr_dir/mpfr"
1052   gmplibs="$with_mpfr_dir/libmpfr.a"
1053 else
1054   gmplibs="-lmpfr"
1055 fi
1056
1057 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1058
1059 if test "x$with_mpfr" != x; then
1060   gmplibs="-L$with_mpfr/lib $gmplibs"
1061   gmpinc="-I$with_mpfr/include"
1062 fi
1063
1064 # Specify a location for gmp
1065 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1066
1067 if test "x$with_gmp_dir" != x; then
1068   gmpinc="$gmpinc -I$with_gmp_dir"
1069   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1070     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1071   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1072     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1073   fi
1074   # One of the later tests will catch the error if neither library is present.
1075 else
1076   gmplibs="$gmplibs -lgmp"
1077 fi
1078
1079 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1080
1081 if test "x$with_gmp" != x; then
1082   gmplibs="-L$with_gmp/lib $gmplibs"
1083   gmpinc="-I$with_gmp/include $gmpinc"
1084 fi
1085
1086 saved_CFLAGS="$CFLAGS"
1087 CFLAGS="$CFLAGS $gmpinc"
1088 # Check GMP actually works
1089 AC_MSG_CHECKING([for correct version of gmp.h])
1090 AC_TRY_COMPILE([#include "gmp.h"],[
1091 #if __GNU_MP_VERSION < 3
1092 choke me
1093 #endif
1094 ], [AC_MSG_RESULT([yes])],
1095   [AC_MSG_RESULT([no]); have_gmp=no])
1096
1097 if test x"$have_gmp" = xyes; then
1098   AC_MSG_CHECKING([for MPFR])
1099
1100   saved_LIBS="$LIBS"
1101   LIBS="$LIBS $gmplibs"
1102   AC_TRY_LINK([#include <gmp.h>
1103 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1104     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1105   LIBS="$saved_LIBS"
1106   CFLAGS="$saved_CFLAGS"
1107 fi
1108
1109 # Flags needed for both GMP and/or MPFR
1110 AC_SUBST(gmplibs)
1111 AC_SUBST(gmpinc)
1112
1113 # By default, C is the only stage 1 language.
1114 stage1_languages=c
1115 AC_SUBST(stage1_languages)
1116
1117 # Figure out what language subdirectories are present.
1118 # Look if the user specified --enable-languages="..."; if not, use
1119 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1120 # go away some day.
1121 # NB:  embedded tabs in this IF block -- do not untabify
1122 if test -d ${srcdir}/gcc; then
1123   if test x"${enable_languages+set}" != xset; then
1124     if test x"${LANGUAGES+set}" = xset; then
1125       enable_languages="${LANGUAGES}"
1126         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1127     else
1128       enable_languages=all
1129     fi
1130   else
1131     if test x"${enable_languages}" = x ||
1132        test x"${enable_languages}" = xyes;
1133        then
1134       echo configure.in: --enable-languages needs at least one language argument 1>&2
1135       exit 1
1136     fi
1137   fi
1138   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1139
1140   # First scan to see if an enabled language requires some other language.
1141   # We assume that a given config-lang.in will list all the language
1142   # front ends it requires, even if some are required indirectly.
1143   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1144     case ${lang_frag} in
1145       ..) ;;
1146       # The odd quoting in the next line works around
1147       # an apparent bug in bash 1.12 on linux.
1148       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1149       *)
1150         # From the config-lang.in, get $language, $lang_requires
1151         language=
1152         lang_requires=
1153         . ${lang_frag}
1154         for other in ${lang_requires} ; do
1155           case ,${enable_languages}, in
1156             *,$other,*) ;;
1157             *,all,*) ;;
1158             *,$language,*)
1159               echo " \`$other' language required by \`$language'; enabling" 1>&2
1160               enable_languages="${enable_languages},${other}"
1161               ;;
1162           esac
1163         done
1164         ;;
1165     esac
1166   done
1167
1168   new_enable_languages=c
1169   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1170   potential_languages=c
1171
1172   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1173     case ${lang_frag} in
1174       ..) ;;
1175       # The odd quoting in the next line works around
1176       # an apparent bug in bash 1.12 on linux.
1177       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1178       *)
1179         # From the config-lang.in, get $language, $target_libs,
1180         # $lang_dirs, $boot_language, and $build_by_default
1181         language=
1182         target_libs=
1183         lang_dirs=
1184         boot_language=
1185         build_by_default=
1186         need_gmp=
1187         . ${lang_frag}
1188         potential_languages="${potential_languages},${language}"
1189         # This is quite sensitive to the ordering of the case statement arms.
1190         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1191           *::*:*)
1192             echo "${lang_frag} doesn't set \$language." 1>&2
1193             exit 1
1194             ;;
1195           *:ada:no:*)
1196             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1197             add_this_lang=no
1198             ;;
1199           *,${language},*:*:*:*)
1200             # Language was explicitly selected; include it.
1201             add_this_lang=yes
1202             ;;
1203           *,all,*:*:*:no)
1204             # 'all' was selected, but this is not a default language
1205             # so do not include it.
1206             add_this_lang=no
1207             ;;
1208           *,all,*:*:*:*)
1209             # 'all' was selected and this is a default language; include it.
1210             add_this_lang=yes
1211             ;;
1212           *)
1213             add_this_lang=no
1214             ;;
1215         esac
1216
1217         # Disable languages that need GMP if it isn't available.
1218         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1219           *,${language},*:no:yes)
1220             # Specifically requested language; tell them.
1221             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1222             ;;
1223           *:no:yes)
1224             # Silently disable.
1225             add_this_lang=no
1226             ;;
1227         esac
1228
1229         case $add_this_lang in
1230           no)
1231             # Remove language-dependent dirs.
1232             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1233             ;;
1234           *)
1235             new_enable_languages="$new_enable_languages,$language"
1236             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1237             case ${boot_language} in
1238               yes)
1239                 # Add to (comma-separated) list of stage 1 languages.
1240                 stage1_languages="${stage1_languages},${language}"
1241                 ;;
1242             esac
1243             ;;
1244         esac
1245         ;;
1246     esac
1247   done
1248
1249   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1250   if test "x$missing_languages" != x; then
1251     AC_MSG_ERROR([
1252 The following requested languages were not found: ${missing_languages}
1253 The available languages are: ${potential_languages}])
1254   fi
1255
1256   if test "x$new_enable_languages" != "x$enable_languages"; then
1257     echo The following languages will be built: ${new_enable_languages}
1258   fi
1259   enable_languages="$new_enable_languages"
1260   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1261 fi
1262
1263 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1264 # $build_configdirs and $target_configdirs.
1265 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1266
1267 notsupp=""
1268 for dir in . $skipdirs $noconfigdirs ; do
1269   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1270   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1271     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1272     if test -r $srcdir/$dirname/configure ; then
1273       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1274         true
1275       else
1276         notsupp="$notsupp $dir"
1277       fi
1278     fi
1279   fi
1280   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1281     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1282     if test -r $srcdir/$dirname/configure ; then
1283       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1284         true
1285       else
1286         notsupp="$notsupp $dir"
1287       fi
1288     fi
1289   fi
1290   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1291     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1292     if test -r $srcdir/$dirname/configure ; then
1293       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1294         true
1295       else
1296         notsupp="$notsupp $dir"
1297       fi
1298     fi
1299   fi
1300 done
1301
1302 # Sometimes the tools are distributed with libiberty but with no other
1303 # libraries.  In that case, we don't want to build target-libiberty.
1304 if test -n "${target_configdirs}" ; then
1305   others=
1306   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1307     if test "$i" != "libiberty" ; then
1308       if test -r $srcdir/$i/configure ; then
1309         others=yes;
1310         break;
1311       fi
1312     fi
1313   done
1314   if test -z "${others}" ; then
1315     target_configdirs=
1316   fi
1317 fi
1318
1319 # Quietly strip out all directories which aren't configurable in this tree.
1320 # This relies on all configurable subdirectories being autoconfiscated, which
1321 # is now the case.
1322 build_configdirs_all="$build_configdirs"
1323 build_configdirs=
1324 for i in ${build_configdirs_all} ; do
1325   j=`echo $i | sed -e s/build-//g`
1326   if test -f ${srcdir}/$j/configure ; then
1327     build_configdirs="${build_configdirs} $i"
1328   fi
1329 done
1330
1331 configdirs_all="$configdirs"
1332 configdirs=
1333 for i in ${configdirs_all} ; do
1334   if test -f ${srcdir}/$i/configure ; then
1335     configdirs="${configdirs} $i"
1336   fi
1337 done
1338
1339 target_configdirs_all="$target_configdirs"
1340 target_configdirs=
1341 for i in ${target_configdirs_all} ; do
1342   j=`echo $i | sed -e s/target-//g`
1343   if test -f ${srcdir}/$j/configure ; then
1344     target_configdirs="${target_configdirs} $i"
1345   fi
1346 done
1347
1348 # Produce a warning message for the subdirs we can't configure.
1349 # This isn't especially interesting in the Cygnus tree, but in the individual
1350 # FSF releases, it's important to let people know when their machine isn't
1351 # supported by the one or two programs in a package.
1352
1353 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1354   # If $appdirs is non-empty, at least one of those directories must still
1355   # be configured, or we error out.  (E.g., if the gas release supports a
1356   # specified target in some subdirs but not the gas subdir, we shouldn't
1357   # pretend that all is well.)
1358   if test -n "$appdirs" ; then
1359     for dir in $appdirs ; do
1360       if test -r $dir/Makefile.in ; then
1361         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1362           appdirs=""
1363           break
1364         fi
1365         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1366           appdirs=""
1367           break
1368         fi
1369       fi
1370     done
1371     if test -n "$appdirs" ; then
1372       echo "*** This configuration is not supported by this package." 1>&2
1373       exit 1
1374     fi
1375   fi
1376   # Okay, some application will build, or we don't care to check.  Still
1377   # notify of subdirs not getting built.
1378   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1379   echo "    ${notsupp}" 1>&2
1380   echo "    (Any other directories should still work fine.)" 1>&2
1381 fi
1382
1383 case "$host" in
1384   *msdosdjgpp*)
1385     enable_gdbtk=no ;;
1386 esac
1387
1388 copy_dirs=
1389
1390 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1391 # the named directory are copied to $(tooldir)/sys-include.
1392 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1393   if test x${is_cross_compiler} = xno ; then
1394     echo 1>&2 '***' --with-headers is only supported when cross compiling
1395     exit 1
1396   fi
1397   if test x"${with_headers}" != xyes ; then
1398     case "${exec_prefixoption}" in
1399     "") x=${prefix} ;;
1400     *) x=${exec_prefix} ;;
1401     esac
1402     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1403   fi
1404 fi
1405
1406 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1407 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1408 # are permitted.
1409 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1410   if test x${is_cross_compiler} = xno ; then
1411     echo 1>&2 '***' --with-libs is only supported when cross compiling
1412     exit 1
1413   fi
1414   if test x"${with_libs}" != xyes ; then
1415     # Copy the libraries in reverse order, so that files in the first named
1416     # library override files in subsequent libraries.
1417     case "${exec_prefixoption}" in
1418     "") x=${prefix} ;;
1419     *) x=${exec_prefix} ;;
1420     esac
1421     for l in ${with_libs}; do
1422       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1423     done
1424   fi
1425 fi
1426
1427 # Handle ${copy_dirs}
1428 set fnord ${copy_dirs}
1429 shift
1430 while test $# != 0 ; do
1431   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1432     :
1433   else
1434     echo Copying $1 to $2
1435
1436     # Use the install script to create the directory and all required
1437     # parent directories.
1438     if test -d $2 ; then
1439       :
1440     else
1441       echo >config.temp
1442       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1443     fi
1444
1445     # Copy the directory, assuming we have tar.
1446     # FIXME: Should we use B in the second tar?  Not all systems support it.
1447     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1448
1449     # It is the responsibility of the user to correctly adjust all
1450     # symlinks.  If somebody can figure out how to handle them correctly
1451     # here, feel free to add the code.
1452
1453     echo $1 > $2/COPIED
1454   fi
1455   shift; shift
1456 done
1457
1458 extra_arflags_for_target=
1459 extra_nmflags_for_target=
1460 extra_ranlibflags_for_target=
1461 target_makefile_frag=/dev/null
1462 case "${target}" in
1463   *-*-netware*)
1464     target_makefile_frag="config/mt-netware"
1465     ;;
1466   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1467     target_makefile_frag="config/mt-gnu"
1468     ;;
1469   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1470     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1471     # commands to handle both 32-bit and 64-bit objects.  These flags are
1472     # harmless if we're using GNU nm or ar.
1473     extra_arflags_for_target=" -X32_64"
1474     extra_nmflags_for_target=" -B -X32_64"
1475     ;;
1476   *-*-darwin*)
1477     # ranlib from Darwin requires the -c flag to look at common symbols.
1478     extra_ranlibflags_for_target=" -c"
1479     ;;
1480   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1481     target_makefile_frag="config/mt-wince"
1482     ;;
1483 esac
1484
1485 alphaieee_frag=/dev/null
1486 case $target in
1487   alpha*-*-*)
1488     # This just makes sure to use the -mieee option to build target libs.
1489     # This should probably be set individually by each library.
1490     alphaieee_frag="config/mt-alphaieee"
1491     ;;
1492 esac
1493
1494 # If --enable-target-optspace always use -Os instead of -O2 to build
1495 # the target libraries, similarly if it is not specified, use -Os
1496 # on selected platforms.
1497 ospace_frag=/dev/null
1498 case "${enable_target_optspace}:${target}" in
1499   yes:*)
1500     ospace_frag="config/mt-ospace"
1501     ;;
1502   :d30v-*)
1503     ospace_frag="config/mt-d30v"
1504     ;;
1505   :m32r-* | :d10v-* | :fr30-*)
1506     ospace_frag="config/mt-ospace"
1507     ;;
1508   no:* | :*)
1509     ;;
1510   *)
1511     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1512     ;;
1513 esac
1514
1515 # Set with_gnu_as and with_gnu_ld as appropriate.
1516 #
1517 # This is done by determining whether or not the appropriate directory
1518 # is available, and by checking whether or not specific configurations
1519 # have requested that this magic not happen.
1520 #
1521 # The command line options always override the explicit settings in
1522 # configure.in, and the settings in configure.in override this magic.
1523 #
1524 # If the default for a toolchain is to use GNU as and ld, and you don't
1525 # want to do that, then you should use the --without-gnu-as and
1526 # --without-gnu-ld options for the configure script.
1527
1528 if test x${use_gnu_as} = x &&
1529    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1530   with_gnu_as=yes
1531   extra_host_args="$extra_host_args --with-gnu-as"
1532 fi
1533
1534 if test x${use_gnu_ld} = x &&
1535    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1536   with_gnu_ld=yes
1537   extra_host_args="$extra_host_args --with-gnu-ld"
1538 fi
1539
1540 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1541 # can detect this case.
1542
1543 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1544   with_newlib=yes
1545   extra_host_args="$extra_host_args --with-newlib"
1546 fi
1547
1548 # Default to using --with-stabs for certain targets.
1549 if test x${with_stabs} = x ; then
1550   case "${target}" in
1551   mips*-*-irix[[56]]*)
1552     ;;
1553   mips*-*-* | alpha*-*-osf*)
1554     with_stabs=yes;
1555     extra_host_args="${extra_host_args} --with-stabs"
1556     ;;
1557   esac
1558 fi
1559
1560 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1561 # them automatically.
1562 case "${host}" in
1563   hppa*64*-*-hpux11*)
1564     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1565     ;;
1566 esac
1567
1568 # Some systems (e.g., one of the i386-aix systems the gas testers are
1569 # using) don't handle "\$" correctly, so don't use it here.
1570 tooldir='${exec_prefix}'/${target_alias}
1571 build_tooldir=${tooldir}
1572
1573 # Generate default definitions for YACC, M4, LEX and other programs that run
1574 # on the build machine.  These are used if the Makefile can't locate these
1575 # programs in objdir.
1576 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1577 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1578 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1579 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1580 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1581 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1582 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1583
1584 # Create a .gdbinit file which runs the one in srcdir
1585 # and tells GDB to look there for source files.
1586
1587 if test -r ${srcdir}/.gdbinit ; then
1588   case ${srcdir} in
1589     .) ;;
1590     *) cat > ./.gdbinit <<EOF
1591 # ${NO_EDIT}
1592 dir ${srcdir}
1593 dir .
1594 source ${srcdir}/.gdbinit
1595 EOF
1596     ;;
1597   esac
1598 fi
1599
1600 # Make sure that the compiler is able to generate an executable.  If it
1601 # can't, we are probably in trouble.  We don't care whether we can run the
1602 # executable--we might be using a cross compiler--we only care whether it
1603 # can be created.  At this point the main configure script has set CC.
1604 we_are_ok=no
1605 echo "int main () { return 0; }" > conftest.c
1606 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1607 if test $? = 0 ; then
1608   if test -s conftest || test -s conftest.exe ; then
1609     we_are_ok=yes
1610   fi
1611 fi
1612 case $we_are_ok in
1613   no)
1614     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1615     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1616     rm -f conftest*
1617     exit 1
1618     ;;
1619 esac
1620 rm -f conftest*
1621
1622 # The Solaris /usr/ucb/cc compiler does not appear to work.
1623 case "${host}" in
1624   sparc-sun-solaris2*)
1625       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1626       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1627           could_use=
1628           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1629           if test -d /opt/cygnus/bin ; then
1630               if test "$could_use" = "" ; then
1631                   could_use="/opt/cygnus/bin"
1632               else
1633                   could_use="$could_use or /opt/cygnus/bin"
1634               fi
1635           fi
1636         if test "$could_use" = "" ; then
1637             echo "Warning: compilation may fail because you're using"
1638             echo "/usr/ucb/cc.  You should change your PATH or CC "
1639             echo "variable and rerun configure."
1640         else
1641             echo "Warning: compilation may fail because you're using"
1642             echo "/usr/ucb/cc, when you should use the C compiler from"
1643             echo "$could_use.  You should change your"
1644             echo "PATH or CC variable and rerun configure."
1645         fi
1646       fi
1647   ;;
1648 esac
1649
1650 # If no --enable-shared nor --disable-shared is specified, we set up
1651 # LD_LIBRARY_PATH when we build for gcc.
1652 case $enable_shared in
1653 "")
1654   if test -d ${srcdir}/gcc; then
1655     set_lib_path=yes
1656   else
1657     set_lib_path=no
1658   fi
1659   ;;
1660 *)
1661   set_lib_path=$enable_shared
1662   ;;
1663 esac
1664
1665 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1666 # binutils tools will find libbfd.so.
1667 case "${set_lib_path}" in
1668   no) SET_LIB_PATH= ;;
1669   *) SET_LIB_PATH="\$(REALLY_SET_LIB_PATH)" ;;
1670 esac
1671
1672 case "${host}" in
1673   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1674   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1675 esac
1676
1677 # Record target_configdirs and the configure arguments for target and
1678 # build configuration in Makefile.
1679 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1680 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1681
1682 # Determine whether gdb needs tk/tcl or not.
1683 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1684 # and in that case we want gdb to be built without tk.  Ugh!
1685 # In fact I believe gdb is the *only* package directly dependent on tk,
1686 # so we should be able to put the 'maybe's in unconditionally and
1687 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1688 # 100% sure that that's safe though.
1689
1690 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1691 case "$enable_gdbtk" in
1692   no)
1693     GDB_TK="" ;;
1694   yes)
1695     GDB_TK="${gdb_tk}" ;;
1696   *)
1697     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1698     # distro.  Eventually someone will fix this and move Insight, nee
1699     # gdbtk to a separate directory.
1700     if test -d ${srcdir}/gdb/gdbtk ; then
1701       GDB_TK="${gdb_tk}"
1702     else
1703       GDB_TK=""
1704     fi
1705     ;;
1706 esac
1707
1708 # Strip out unwanted targets.
1709
1710 # While at that, we remove Makefiles if we were started for recursive
1711 # configuration, so that the top-level Makefile reconfigures them,
1712 # like we used to do when configure itself was recursive.
1713
1714 # Loop over modules.  $extrasub must be used with care, limiting as
1715 # much as possible the usage of range addresses.  That's because autoconf
1716 # splits the sed script to overcome limits in the number of commands,
1717 # and relying on carefully-timed sed passes may turn out to be very hard
1718 # to maintain later.  In this particular case, you just have to be careful
1719 # not to nest @if/@endif pairs, because configure will not warn you at all.
1720
1721 AC_ARG_ENABLE([bootstrap],
1722 [  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
1723 enable_bootstrap=default)
1724
1725 # Issue errors and warnings for invalid/strange bootstrap combinations.
1726 case "$configdirs" in
1727   *gcc*) have_compiler=yes ;;
1728   *) have_compiler=no ;;
1729 esac
1730
1731 case "$have_compiler:$host:$target:$enable_bootstrap" in
1732   *:*:*:no) ;;
1733
1734   # Default behavior.  (We'll) enable bootstrap if we have a compiler
1735   # and we are in a native configuration.
1736   yes:$build:$build:default)
1737     # This will become 'yes'
1738     enable_bootstrap=no ;;
1739
1740   *:*:*:default)
1741     enable_bootstrap=no ;;
1742
1743   # We have a compiler and we are in a native configuration, bootstrap is ok
1744   yes:$build:$build:yes | yes:$build:$build:lean)
1745     ;;
1746
1747   # Other configurations, but we have a compiler.  Assume the user knows
1748   # what he's doing.
1749   yes:*:*:yes | yes:*:*:lean)
1750     AC_MSG_WARN([trying to bootstrap a cross compiler])
1751     ;;
1752
1753   # No compiler: if they passed --enable-bootstrap explicitly, fail
1754   no:*:*:yes | no:*:*:lean)
1755     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1756
1757   # Fail if wrong command line
1758   *)
1759     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1760     ;;
1761 esac
1762
1763 # Adjust the toplevel makefile according to whether bootstrap was selected.
1764 case "$enable_bootstrap" in
1765   yes)
1766     bootstrap_lean='#'
1767     default_target=bootstrap
1768     bootstrap_suffix=bootstrap ;;
1769   lean)
1770     bootstrap_lean=''
1771     default_target=bootstrap
1772     bootstrap_suffix=bootstrap ;;
1773   no)
1774     default_target=all
1775     bootstrap_suffix=no-bootstrap ;;
1776 esac
1777 AC_SUBST(bootstrap_lean)
1778 AC_SUBST(default_target)
1779
1780 for module in ${build_configdirs} ; do
1781   if test -z "${no_recursion}" \
1782      && test -f ${build_subdir}/${module}/Makefile; then
1783     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1784     rm -f ${build_subdir}/${module}/Makefile
1785   fi
1786   extrasub="$extrasub
1787 /^@if build-$module\$/d
1788 /^@endif build-$module\$/d
1789 /^@if build-$module-$bootstrap_suffix\$/d
1790 /^@endif build-$module-$bootstrap_suffix\$/d"
1791 done
1792 for module in ${configdirs} ; do
1793   if test -z "${no_recursion}" \
1794      && test -f ${module}/Makefile; then
1795     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1796     rm -f ${module}/Makefile
1797   fi
1798   extrasub="$extrasub
1799 /^@if $module\$/d
1800 /^@endif $module\$/d
1801 /^@if $module-$bootstrap_suffix\$/d
1802 /^@endif $module-$bootstrap_suffix\$/d"
1803 done
1804 for module in ${target_configdirs} ; do
1805   if test -z "${no_recursion}" \
1806      && test -f ${target_subdir}/${module}/Makefile; then
1807     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1808     rm -f ${target_subdir}/${module}/Makefile
1809   fi
1810   extrasub="$extrasub
1811 /^@if target-$module\$/d
1812 /^@endif target-$module\$/d
1813 /^@if target-$module-$bootstrap_suffix\$/d
1814 /^@endif target-$module-$bootstrap_suffix\$/d"
1815 done
1816
1817 extrasub="$extrasub
1818 /^@if /,/^@endif /d"
1819
1820 # Create the serialization dependencies.  This uses a temporary file.
1821
1822 AC_ARG_ENABLE([serial-configure],
1823 [  --enable-serial-[{host,target,build}-]configure
1824                           Force sequential configuration of
1825                           sub-packages for the host, target or build
1826                           machine, or all sub-packages])
1827
1828 case ${enable_serial_configure} in
1829   yes)
1830     enable_serial_build_configure=yes
1831     enable_serial_host_configure=yes
1832     enable_serial_target_configure=yes
1833     ;;
1834 esac
1835
1836 # These force 'configure's to be done one at a time, to avoid problems
1837 # with contention over a shared config.cache.
1838 rm -f serdep.tmp
1839 echo '# serdep.tmp' > serdep.tmp
1840 olditem=
1841 test "x${enable_serial_build_configure}" = xyes &&
1842 for item in ${build_configdirs} ; do
1843   case ${olditem} in
1844     "") ;;
1845     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1846   esac
1847   olditem=${item}
1848 done
1849 olditem=
1850 test "x${enable_serial_host_configure}" = xyes &&
1851 for item in ${configdirs} ; do
1852   case ${olditem} in
1853     "") ;;
1854     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1855   esac
1856   olditem=${item}
1857 done
1858 olditem=
1859 test "x${enable_serial_target_configure}" = xyes &&
1860 for item in ${target_configdirs} ; do
1861   case ${olditem} in
1862     "") ;;
1863     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1864   esac
1865   olditem=${item}
1866 done
1867 serialization_dependencies=serdep.tmp
1868 AC_SUBST_FILE(serialization_dependencies)
1869
1870 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1871 # target and nonopt.  These are the ones we might not want to pass
1872 # down to subconfigures.  Also strip program-prefix, program-suffix,
1873 # and program-transform-name, so that we can pass down a consistent
1874 # program-transform-name.  If autoconf has put single quotes around
1875 # any of these arguments (because they contain shell metacharacters)
1876 # then this will fail; in practice this only happens for
1877 # --program-transform-name, so be sure to override --program-transform-name
1878 # at the end of the argument list.
1879 # These will be expanded by make, so quote '$'.
1880 cat <<\EOF_SED > conftestsed
1881 s/ --no[[^ ]]*/ /g
1882 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1883 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1884 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1885 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1886 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1887 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1888 s/ -cache-file[[= ]][[^ ]]*//g
1889 s/ -srcdir[[= ]][[^ ]]*//g
1890 s/ -host[[= ]][[^ ]]*//g
1891 s/ -build[[= ]][[^ ]]*//g
1892 s/ -target[[= ]][[^ ]]*//g
1893 s/ -program-prefix[[= ]][[^ ]]*//g
1894 s/ -program-suffix[[= ]][[^ ]]*//g
1895 s/ -program-transform-name[[= ]][[^ ]]*//g
1896 s/ [[^' -][^ ]*] / /
1897 s/^ *//;s/ *$//
1898 s,\$,$$,g
1899 EOF_SED
1900 sed -f conftestsed <<EOF_SED > conftestsed.out
1901  ${ac_configure_args}
1902 EOF_SED
1903 baseargs=`cat conftestsed.out`
1904 rm -f conftestsed conftestsed.out
1905
1906 # Add in --program-transform-name, after --program-prefix and
1907 # --program-suffix have been applied to it.  Autoconf has already
1908 # doubled dollar signs and backslashes in program_transform_name; we want
1909 # the backslashes un-doubled, and then the entire thing wrapped in single
1910 # quotes, because this will be expanded first by make and then by the shell.
1911 # Also, because we want to override the logic in subdir configure scripts to
1912 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1913 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1914 ${program_transform_name}
1915 EOF_SED
1916 gcc_transform_name=`cat conftestsed.out`
1917 rm -f conftestsed.out
1918 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1919
1920 # For the build-side libraries, we just need to pretend we're native,
1921 # and not use the same cache file.  Multilibs are neither needed nor
1922 # desired.
1923 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} ${baseargs}"
1924
1925 # For host modules, accept cache file option, or specification as blank.
1926 case "${cache_file}" in
1927 "") # empty
1928   cache_file_option="" ;;
1929 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1930   cache_file_option="--cache-file=${cache_file}" ;;
1931 *) # relative path
1932   cache_file_option="--cache-file=../${cache_file}" ;;
1933 esac
1934
1935 # Host dirs don't like to share a cache file either, horribly enough.
1936 # This seems to be due to autoconf 2.5x stupidity.
1937 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1938
1939 target_configargs=${baseargs}
1940
1941 # Passing a --with-cross-host argument lets the target libraries know
1942 # whether they are being built with a cross-compiler or being built
1943 # native.  However, it would be better to use other mechanisms to make the
1944 # sorts of decisions they want to make on this basis.  Please consider
1945 # this option to be deprecated.  FIXME.
1946 if test x${is_cross_compiler} = xyes ; then
1947   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1948 fi
1949
1950 # Default to --enable-multilib.
1951 if test x${enable_multilib} = x ; then
1952   target_configargs="--enable-multilib ${target_configargs}"
1953 fi
1954
1955 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1956 # changed from the earlier setting of with_newlib.
1957 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1958   target_configargs="--with-newlib ${target_configargs}"
1959 fi
1960
1961 # Different target subdirs use different values of certain variables
1962 # (notably CXX).  Worse, multilibs use *lots* of different values.
1963 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1964 # it doesn't automatically accept command-line overrides of them.
1965 # This means it's not safe for target subdirs to share a cache file,
1966 # which is disgusting, but there you have it.  Hopefully this can be
1967 # fixed in future.  It's still worthwhile to use a cache file for each
1968 # directory.  I think.
1969
1970 # Pass the appropriate --host, --build, and --cache-file arguments.
1971 target_configargs="--cache-file=./config.cache --host=${target_alias} --build=${build_alias} ${target_configargs}"
1972
1973 # provide a proper gxx_include_dir.
1974 # Note, if you change the default, make sure to fix both here and in
1975 # the gcc and libstdc++-v3 subdirectories.
1976 # Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
1977 case "${with_gxx_include_dir}" in
1978   yes)
1979     AC_MSG_ERROR([--with-gxx-include-dir=[[dir]] requires a directory])
1980     ;;
1981   no | "")
1982     case "${enable_version_specific_runtime_libs}" in
1983       yes) gxx_include_dir='${libsubdir}/include/c++' ;;
1984       *)
1985         . ${srcdir}/config.if
1986         gxx_include_dir='${prefix}/include/'${libstdcxx_incdir} ;;
1987     esac ;;
1988   *) gxx_include_dir=${with_gxx_include_dir} ;;
1989 esac
1990
1991 FLAGS_FOR_TARGET=
1992 case " $target_configdirs " in
1993  *" newlib "*)
1994   case " $target_configargs " in
1995   *" --with-newlib "*)
1996    case "$target" in
1997    *-cygwin*)
1998      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 $$s/winsup/w32api/include' ;;
1999    esac
2000
2001    # If we're not building GCC, don't discard standard headers.
2002    if test -d ${srcdir}/gcc; then
2003      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2004
2005      if test "${build}" != "${host}"; then
2006        # On Canadian crosses, CC_FOR_TARGET will have already been set
2007        # by `configure', so we won't have an opportunity to add -Bgcc/
2008        # to it.  This is right: we don't want to search that directory
2009        # for binaries, but we want the header files in there, so add
2010        # them explicitly.
2011        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
2012
2013        # Someone might think of using the pre-installed headers on
2014        # Canadian crosses, in case the installed compiler is not fully
2015        # compatible with the compiler being built.  In this case, it
2016        # would be better to flag an error than risking having
2017        # incompatible object files being constructed.  We can't
2018        # guarantee that an error will be flagged, but let's hope the
2019        # compiler will do it, when presented with incompatible header
2020        # files.
2021      fi
2022    fi
2023
2024    case "${target}-${is_cross_compiler}" in
2025    i[[3456789]]86-*-linux*-no)
2026       # Here host == target, so we don't need to build gcc,
2027       # so we don't want to discard standard headers.
2028       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2029       ;;
2030    *)
2031       # If we're building newlib, use its generic headers last, but search
2032       # for any libc-related directories first (so make it the last -B
2033       # switch).
2034       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2035       ;;
2036    esac
2037    ;;
2038   esac
2039   ;;
2040 esac
2041
2042 # Allow the user to override the flags for
2043 # our build compiler if desired.
2044 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2045
2046 # On Canadian crosses, we'll be searching the right directories for
2047 # the previously-installed cross compiler, so don't bother to add
2048 # flags for directories within the install tree of the compiler
2049 # being built; programs in there won't even run.
2050 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2051   # Search for pre-installed headers if nothing else fits.
2052   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2053 fi
2054
2055 if test "x${use_gnu_ld}" = x &&
2056    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2057   # Arrange for us to find uninstalled linker scripts.
2058   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
2059 fi
2060
2061 if test "x${CC_FOR_TARGET+set}" = xset; then
2062   :
2063 elif test -d ${srcdir}/gcc; then
2064   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
2065 elif test "$host" = "$target"; then
2066   CC_FOR_TARGET='$(CC)'
2067 else
2068   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
2069 fi
2070 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2071
2072 if test "x${GCJ_FOR_TARGET+set}" = xset; then
2073   :
2074 elif test -d ${srcdir}/gcc; then
2075   GCJ_FOR_TARGET='$$r/gcc/gcj -B$$r/gcc/'
2076 elif test "$host" = "$target"; then
2077   GCJ_FOR_TARGET='gcj'
2078 else
2079   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
2080 fi
2081 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2082
2083 if test "x${GFORTRAN_FOR_TARGET+set}" = xset; then
2084   :
2085 elif test -d ${srcdir}/gcc; then
2086   GFORTRAN_FOR_TARGET='$$r/gcc/gfortran -B$$r/gcc/'
2087 elif test "$host" = "$target"; then
2088   GFORTRAN_FOR_TARGET='gfortran'
2089 else
2090   GFORTRAN_FOR_TARGET=`echo gfortran | sed "${program_transform_name}"`
2091 fi
2092 case $GFORTRAN_FOR_TARGET in
2093 *' $(FLAGS_FOR_TARGET)') ;;
2094 *) GFORTRAN_FOR_TARGET=$GFORTRAN_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
2095 esac
2096
2097 # Don't use libstdc++-v3's flags to configure/build itself.
2098 libstdcxx_flags='`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'
2099 raw_libstdcxx_flags='-L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2100
2101 if test "x${CXX_FOR_TARGET+set}" = xset; then
2102   if test "x${RAW_CXX_FOR_TARGET+set}" != xset; then
2103     RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2104   fi
2105 elif test -d ${srcdir}/gcc; then
2106   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
2107   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
2108   # default whereas gcc does not.
2109   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
2110   # all other cases.
2111   CXX_FOR_TARGET='$$r/gcc/g++ -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
2112   RAW_CXX_FOR_TARGET='$$r/gcc/xgcc -shared-libgcc -B$$r/gcc/ -nostdinc++ '$raw_libstdcxx_flags
2113 elif test "$host" = "$target"; then
2114   CXX_FOR_TARGET='$(CXX)'
2115   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2116 else
2117   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
2118   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2119 fi
2120 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2121 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2122
2123 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2124 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2125
2126 # We want to defer the evaluation of `cmd`s and shell variables in
2127 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
2128 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
2129 # quotes, but we still have to duplicate `$'s so that shell variables
2130 # can be expanded by the nested make as shell variables, not as make
2131 # macros.
2132 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2133 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2134
2135 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
2136 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
2137 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
2138 GFORTRAN_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GFORTRAN_FOR_TARGET}"
2139 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
2140 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
2141 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
2142 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
2143
2144 # Makefile fragments.
2145 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2146 do
2147   eval fragval=\$$frag
2148   if test $fragval != /dev/null; then
2149     eval $frag=${srcdir}/$fragval
2150   fi
2151 done
2152 AC_SUBST_FILE(host_makefile_frag)
2153 AC_SUBST_FILE(target_makefile_frag)
2154 AC_SUBST_FILE(alphaieee_frag)
2155 AC_SUBST_FILE(ospace_frag)
2156
2157 # Miscellanea: directories, flags, etc.
2158 AC_SUBST(SET_LIB_PATH)
2159 AC_SUBST(RPATH_ENVVAR)
2160 AC_SUBST(BUILD_PREFIX)
2161 AC_SUBST(BUILD_PREFIX_1)
2162 AC_SUBST(gcc_version_trigger)
2163 AC_SUBST(gcc_version)
2164 AC_SUBST(tooldir)
2165 AC_SUBST(build_tooldir)
2166 AC_SUBST(GDB_TK)
2167 AC_SUBST(gxx_include_dir)
2168 AC_SUBST(libstdcxx_incdir)
2169
2170 # Build module lists & subconfigure args.
2171 AC_SUBST(build_configargs)
2172 AC_SUBST(build_configdirs)
2173
2174 # Host module lists & subconfigure args.
2175 AC_SUBST(host_configargs)
2176 AC_SUBST(configdirs)
2177
2178 # Target module lists & subconfigure args.
2179 AC_SUBST(target_configargs)
2180 AC_SUBST(target_configdirs)
2181
2182 # Build tools.
2183 AC_SUBST(CC_FOR_BUILD)
2184 AC_SUBST(config_shell)
2185
2186 # Host tools.
2187 NCN_STRICT_CHECK_TOOL(AR, ar)
2188 NCN_STRICT_CHECK_TOOL(AS, as)
2189 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2190 NCN_STRICT_CHECK_TOOL(LD, ld)
2191 NCN_STRICT_CHECK_TOOL(NM, nm)
2192 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2193 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2194 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2195 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2196 AC_SUBST(CC)
2197 AC_SUBST(CXX)
2198 AC_SUBST(CFLAGS)
2199 AC_SUBST(CFLAGS_FOR_BUILD)
2200 AC_SUBST(CXXFLAGS)
2201
2202 # Target tools.
2203 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AR_FOR_TARGET, ar)
2204 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AS_FOR_TARGET, as)
2205 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_DLLTOOL_FOR_TARGET, dlltool)
2206 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_LD_FOR_TARGET, ld)
2207 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_NM_FOR_TARGET, nm)
2208 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_RANLIB_FOR_TARGET, ranlib, :)
2209 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_WINDRES_FOR_TARGET, windres)
2210
2211 AC_SUBST(GCC_FOR_TARGET)
2212 AC_SUBST(FLAGS_FOR_TARGET)
2213 AC_SUBST(CC_FOR_TARGET)
2214 AC_SUBST(GCJ_FOR_TARGET)
2215 AC_SUBST(GFORTRAN_FOR_TARGET)
2216 AC_SUBST(CXX_FOR_TARGET)
2217 AC_SUBST(RAW_CXX_FOR_TARGET)
2218 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2219 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2220
2221 # Fix up target tools.
2222 if test "x${build}" = "x${host}" ; then
2223   # In this case, the newly built tools can and should be used,
2224   # so we override the results of the autoconf tests.
2225   # This should really only happen when the tools are actually being built,
2226   # but that's a further refinement.  The new build scheme, where
2227   # tools are built into a structure paralleling where they're installed,
2228   # should also eliminate all of this cleanly.
2229   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2230   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2231   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2232   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2233   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2234   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2235   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2236 else
2237   # Just use the ones we found.
2238   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2239   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2240   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2241   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2242   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2243   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2244   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2245 fi
2246 AC_SUBST(AR_FOR_TARGET)
2247 AC_SUBST(AS_FOR_TARGET)
2248 AC_SUBST(DLLTOOL_FOR_TARGET)
2249 AC_SUBST(LD_FOR_TARGET)
2250 AC_SUBST(NM_FOR_TARGET)
2251 AC_SUBST(RANLIB_FOR_TARGET)
2252 AC_SUBST(WINDRES_FOR_TARGET)
2253
2254 # Certain tools may need extra flags.
2255 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2256 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2257 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2258
2259 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2260 AC_ARG_ENABLE(maintainer-mode,
2261 [  --enable-maintainer-mode enable make rules and dependencies not useful
2262                           (and sometimes confusing) to the casual installer],
2263       USE_MAINTAINER_MODE=$enableval,
2264       USE_MAINTAINER_MODE=no)
2265 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2266 AC_SUBST(MAINTAINER_MODE_TRUE)
2267 AC_SUBST(MAINTAINER_MODE_FALSE)
2268 if test "$USE_MAINTAINER_MODE" = yes; then
2269   MAINTAINER_MODE_TRUE=
2270   MAINTAINER_MODE_FALSE='#'
2271 else
2272   MAINTAINER_MODE_TRUE='#'
2273   MAINTAINER_MODE_FALSE=
2274 fi
2275 MAINT=$MAINTAINER_MODE_TRUE
2276 AC_SUBST(MAINT)dnl
2277
2278 # ---------------------
2279 # GCC bootstrap support
2280 # ---------------------
2281
2282 # Stage specific cflags for build.
2283 stage1_cflags="-g"
2284 case $build in
2285   vax-*-*)
2286     case ${GCC} in
2287       yes) stage1_cflags="-g -Wa,-J" ;;
2288       *) stage1_cflags="-g -J" ;;
2289     esac ;;
2290   powerpc-*-darwin*)
2291     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2292     # sources; use -no-cpp-precomp to get to GNU cpp.
2293     # Apple's GCC has bugs in designated initializer handling, so disable
2294     # that too.
2295     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2296     ;;
2297 esac
2298 AC_SUBST(stage1_cflags)
2299
2300 # It makes debugging easier if we create as symlinks the stage directories
2301 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
2302 # possible, however, we can resort to mv.
2303 AC_CACHE_CHECK([if symbolic links between directories work],
2304 [gcc_cv_prog_ln_s_dir],
2305 [if test "${LN_S}" = "ln -s" \
2306    && mkdir confdir.s1 \
2307    && ln -s confdir.s1 confdir.s2 \
2308    && echo timestamp1 > confdir.s1/conftest.1 \
2309    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2310    && echo timestamp2 > confdir.s2/conftest.2 \
2311    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2312    && rm -f confdir.s2; then
2313   gcc_cv_prog_ln_s_dir=yes
2314 else
2315   gcc_cv_prog_ln_s_dir=yes
2316 fi
2317 rm -rf confdir.s1 confdir.s2])
2318
2319 case ${gcc_cv_prog_ln_s_dir} in
2320   yes)
2321     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2322     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2323   *)
2324     CREATE_LINK_TO_DIR='mv $$1 $$2'
2325     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2326 esac
2327 AC_SUBST(CREATE_LINK_TO_DIR)
2328 AC_SUBST(UNDO_LINK_TO_DIR)
2329
2330 # Enable -Werror in bootstrap stage2 and later.
2331 # Change the default to "no" on release branches.
2332 AC_ARG_ENABLE(werror,
2333 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2334 [enable_werror=yes])
2335 case ${enable_werror} in
2336   yes) stage2_werror_flag="--enable-werror-always" ;;
2337   *) stage2_werror_flag="" ;;
2338 esac
2339 AC_SUBST(stage2_werror_flag)
2340
2341 # If gcc is built natively with shared library enabled, set
2342 # $RPATH_ENVVAR to make sure the newly built gcc shared librares are
2343 # used.
2344 SET_GCC_LIB_PATH=
2345 if test -d ${srcdir}/gcc && test x${is_cross_compiler} = xno; then
2346   case "${set_lib_path}" in
2347     no) ;;
2348     *)
2349       eval "d=\$$RPATH_ENVVAR"
2350       if test x"$d" != x; then
2351         d="$pwd/gcc:$d"
2352       else
2353         d="$pwd/gcc"
2354     fi
2355     SET_GCC_LIB_PATH="\$(RPATH_ENVVAR)=$d; export \$(RPATH_ENVVAR);"
2356     ;;
2357   esac
2358 fi
2359 AC_SUBST(SET_GCC_LIB_PATH)
2360
2361 AC_OUTPUT(Makefile)