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