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 # Set srcdir to "." if that's what it is.
  84 # This is important for multilib support.
  85 pwd=`${PWDCMD-pwd}`
  86 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  87 if test "${pwd}" = "${srcpwd}" ; then
  88   srcdir=.
  89 fi
  90
  91 topsrcdir=$srcpwd
  92
  93 extra_host_args=
  94 # Define the trigger file to make sure configure will re-run whenever
  95 # the gcc version number changes.
  96 if test "${with_gcc_version_trigger+set}" = set ; then
  97   gcc_version_trigger="$with_gcc_version_trigger"
  98   gcc_version=`grep version_string ${with_gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
  99 else
 100   # If gcc's sources are available, define the trigger file.
 101   if test -f ${topsrcdir}/gcc/version.c ; then
 102     gcc_version_trigger=${topsrcdir}/gcc/version.c
 103     gcc_version=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
 104     case "$ac_configure_args" in
 105       *--with-gcc-version-trigger=$gcc_version_trigger* )
 106         ;;
 107       * )
 108         # Add to all subconfigure arguments: build, host, and target.
 109         ac_configure_args="$ac_configure_args --with-gcc-version-trigger=$gcc_version_trigger"
 110         ;;
 111     esac
 112   fi
 113 fi
 114
 115 ### To add a new directory to the tree, first choose whether it is a target
 116 ### or a host dependent tool.  Then put it into the appropriate list
 117 ### (library or tools, host or target), doing a dependency sort.
 118
 119 # Subdirs will be configured in the order listed in build_configdirs,
 120 # configdirs, or target_configdirs; see the serialization section below.
 121
 122 # Dependency sorting is only needed when *configuration* must be done in
 123 # a particular order.  In all cases a dependency should be specified in
 124 # the Makefile, whether or not it's implicitly specified here.
 125
 126 # Double entries in build_configdirs, configdirs, or target_configdirs may
 127 # cause circular dependencies and break everything horribly.
 128
 129 # these library is used by various programs built for the build
 130 # environment
 131 #
 132 build_libs="build-libiberty"
 133
 134 # these tools are built for the build environment
 135 build_tools="build-texinfo build-byacc build-flex build-bison build-m4"
 136
 137 # these libraries are used by various programs built for the host environment
 138 #
 139 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl tix libgui zlib libbanshee libcpp"
 140
 141 # these tools are built for the host environment
 142 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 143 # know that we are building the simulator.
 144 # binutils, gas and ld appear in that order because it makes sense to run
 145 # "make check" in that particular order.
 146 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"
 147
 148 # libgcj represents the runtime libraries only used by gcj.
 149 libgcj="target-libffi \
 150         target-boehm-gc \
 151         target-zlib \
 152         target-qthreads \
 153         target-libjava"
 154
 155 # these libraries are built for the target environment, and are built after
 156 # the host libraries and the host tools (which may be a cross compiler)
 157 #
 158 target_libraries="target-libiberty \
 159                 target-libgloss \
 160                 target-newlib \
 161                 target-libstdc++-v3 \
 162                 target-libmudflap \
 163                 target-libgfortran \
 164                 ${libgcj} \
 165                 target-libobjc \
 166                 target-libada"
 167
 168 # these tools are built using the target libraries, and are intended to
 169 # run only in the target environment
 170 #
 171 # note: any program that *uses* libraries that are in the "target_libraries"
 172 # list belongs in this list.  those programs are also very likely
 173 # candidates for the "native_only" list which follows
 174 #
 175 target_tools="target-examples target-groff target-gperf target-rda"
 176
 177 ################################################################################
 178
 179 ## All tools belong in one of the four categories, and are assigned above
 180 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 181 ## is important because configure will choke if they ever get through.
 182 ## ${configdirs} is directories we build using the host tools.
 183 ## ${target_configdirs} is directories we build using the target tools.
 184 configdirs=`echo ${host_libs} ${host_tools}`
 185 target_configdirs=`echo ${target_libraries} ${target_tools}`
 186
 187 # Only make build modules if build != host.
 188 if test ${host_alias} != ${build_alias} ; then
 189   build_configdirs=`echo ${build_libs} ${build_tools}`
 190 fi
 191
 192 ################################################################################
 193
 194 srcname="gnu development package"
 195
 196 # This gets set non-empty for some net releases of packages.
 197 appdirs=""
 198
 199 # Define is_cross_compiler to save on calls to 'test'.
 200 is_cross_compiler=
 201 if test x"${host}" = x"${target}" ; then
 202   is_cross_compiler=no
 203 else
 204   is_cross_compiler=yes
 205 fi
 206
 207 # Find the build and target subdir names.
 208 GCC_TOPLEV_SUBDIRS
 209
 210 # Skipdirs are removed silently.
 211 skipdirs=
 212 # Noconfigdirs are removed loudly.
 213 noconfigdirs=""
 214
 215 use_gnu_ld=
 216 # Make sure we don't let GNU ld be added if we didn't want it.
 217 if test x$with_gnu_ld = xno ; then
 218   use_gnu_ld=no
 219   noconfigdirs="$noconfigdirs ld"
 220 fi
 221
 222 use_gnu_as=
 223 # Make sure we don't let GNU as be added if we didn't want it.
 224 if test x$with_gnu_as = xno ; then
 225   use_gnu_as=no
 226   noconfigdirs="$noconfigdirs gas"
 227 fi
 228
 229 # some tools are so dependent upon X11 that if we're not building with X,
 230 # it's not even worth trying to configure, much less build, that tool.
 231
 232 case ${with_x} in
 233   yes | "") ;; # the default value for this tree is that X11 is available
 234   no)
 235     skipdirs="${skipdirs} tk tix itcl libgui"
 236     # We won't be able to build gdbtk without X.
 237     enable_gdbtk=no
 238     ;;
 239   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 240 esac
 241
 242 # Some tools are only suitable for building in a "native" situation.
 243 # Remove these if host!=target.
 244 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"
 245
 246 # Similarly, some are only suitable for cross toolchains.
 247 # Remove these if host=target.
 248 cross_only="target-libgloss target-newlib target-opcodes"
 249
 250 case $is_cross_compiler in
 251   no) skipdirs="${skipdirs} ${cross_only}" ;;
 252   yes) skipdirs="${skipdirs} ${native_only}" ;;
 253 esac
 254
 255 # If both --with-headers and --with-libs are specified, default to
 256 # --without-newlib.
 257 if test x"${with_headers}" != x && test x"${with_headers} != xno \
 258    && test x"${with_libs}" != x && test x"${with_libs} != xno ; then
 259   if test x"${with_newlib}" = x ; then
 260     with_newlib=no
 261   fi
 262 fi
 263
 264 # Recognize --with-newlib/--without-newlib.
 265 case ${with_newlib} in
 266   no) skipdirs="${skipdirs} target-newlib" ;;
 267   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 268 esac
 269
 270 # Configure extra directories which are host specific
 271
 272 case "${host}" in
 273   *-cygwin*)
 274     configdirs="$configdirs libtermcap" ;;
 275 esac
 276
 277 # Remove more programs from consideration, based on the host or
 278 # target this usually means that a port of the program doesn't
 279 # exist yet.
 280
 281 case "${host}" in
 282   hppa*64*-*-*)
 283     noconfigdirs="$noconfigdirs byacc"
 284     ;;
 285   i[[3456789]]86-*-vsta)
 286     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl tix gnuserv gettext"
 287     ;;
 288   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 289     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl tix gnuserv libffi"
 290     ;;
 291   i[[3456789]]86-*-mingw32*)
 292     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl tix gnuserv"
 293     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 294     ;;
 295   i[[3456789]]86-*-beos*)
 296     noconfigdirs="$noconfigdirs tk itcl tix libgui gdb"
 297     ;;
 298   *-*-cygwin*)
 299     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 300     ;;
 301   *-*-netbsd*)
 302     noconfigdirs="$noconfigdirs rcs"
 303     ;;
 304   ppc*-*-pe)
 305     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl tix gnuserv"
 306     ;;
 307   powerpc-*-beos*)
 308     noconfigdirs="$noconfigdirs tk itcl tix libgui gdb dejagnu readline"
 309     ;;
 310   *-*-darwin*)
 311     noconfigdirs="$noconfigdirs tk itcl tix libgui"
 312     ;;
 313 esac
 314
 315 AC_ARG_WITH(libbanshee,
 316 [  --without-libbanshee   Don't build with libbanshee])
 317 case ${with_libbanshee} in
 318   no)
 319     noconfigdirs="$noconfigdirs libbanshee" ;;
 320   yes|"")
 321     with_libbanshee=yes
 322     ;;
 323   *)
 324     AC_MSG_ERROR([--with-libbanshee can only be empty, "yes" or "no" (empty defaults to "yes".])
 325 esac
 326
 327 AC_ARG_ENABLE(libada,
 328 [  --enable-libada        Builds libada directory],
 329 ENABLE_LIBADA=$enableval,
 330 ENABLE_LIBADA=yes)
 331 if test "${ENABLE_LIBADA}" != "yes" ; then
 332   noconfigdirs="$noconfigdirs target-libada"
 333 fi
 334
 335 # Save it here so that, even in case of --enable-libgcj, if the Java
 336 # front-end isn't enabled, we still get libgcj disabled.
 337 libgcj_saved=$libgcj
 338 case $enable_libgcj in
 339 yes)
 340   # If we reset it here, it won't get added to noconfigdirs in the
 341   # target-specific build rules, so it will be forcibly enabled
 342   # (unless the Java language itself isn't enabled).
 343   libgcj=
 344   ;;
 345 no)
 346   # Make sure we get it printed in the list of not supported target libs.
 347   noconfigdirs="$noconfigdirs ${libgcj}"
 348   ;;
 349 esac
 350
 351
 352 # Allow --disable-libmudflap to exclude target-libmudflap
 353 case $enable_libmudflap in
 354 yes)
 355     ;;
 356 no)
 357     noconfigdirs="$noconfigdirs target-libmudflap"
 358     ;;
 359 "")
 360     case "${target}" in
 361     *-*-linux*)
 362         # Enable libmudflap by default in GNU/Linux.
 363         ;;
 364     *-*-freebsd*)
 365         # Enable libmudflap by default in FreeBSD.
 366         ;;
 367     *)
 368         # Disable it by default everywhere else.
 369         noconfigdirs="$noconfigdirs target-libmudflap"
 370         ;;
 371     esac
 372 esac
 373
 374
 375 case "${target}" in
 376   *-*-chorusos)
 377     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 378     ;;
 379   powerpc-*-darwin*)
 380     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 381     noconfigdirs="$noconfigdirs target-libobjc"
 382     ;;
 383   *-*-darwin*)
 384     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 385     noconfigdirs="$noconfigdirs target-libobjc ${libgcj}"
 386     ;;
 387   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 388     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 389     ;;
 390   *-*-freebsd* | *-*-kfreebsd*-gnu)
 391     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 392     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 393         && test -f /usr/local/include/gmp.h; then
 394       with_gmp=/usr/local
 395     fi
 396
 397     # Skip some stuff that's unsupported on some FreeBSD configurations.
 398     case "${target}" in
 399       i*86-*-*) ;;
 400       alpha*-*-*) ;;
 401       *)
 402         noconfigdirs="$noconfigdirs ${libgcj}"
 403         ;;
 404     esac
 405     ;;
 406   *-*-kaos*)
 407     # Remove unsupported stuff on all kaOS configurations.
 408     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 409     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 410     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 411     noconfigdirs="$noconfigdirs target-libgloss"
 412     ;;
 413   *-*-netbsd*)
 414     # Skip some stuff on all NetBSD configurations.
 415     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 416
 417     # Skip some stuff that's unsupported on some NetBSD configurations.
 418     case "${target}" in
 419       i*86-*-netbsdelf*) ;;
 420       arm*-*-netbsdelf*) ;;
 421       *)
 422         noconfigdirs="$noconfigdirs ${libgcj}"
 423         ;;
 424     esac
 425     ;;
 426   *-*-netware)
 427     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-newlib target-libiberty target-libgloss ${libgcj}"
 428     ;;
 429   *-*-rtems*)
 430     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 431     ;;
 432   *-*-uclinux*)
 433     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 434     ;;
 435   *-*-vxworks*)
 436     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}"
 437     ;;
 438   alpha*-dec-osf*)
 439     # ld works, but does not support shared libraries.
 440     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 441     # gas doesn't generate exception information.
 442     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 443     ;;
 444   alpha*-*-*vms*)
 445     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 446     ;;
 447   alpha*-*-linux*)
 448     # newlib is not 64 bit ready
 449     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 450     ;;
 451   alpha*-*-*)
 452     # newlib is not 64 bit ready
 453     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 454     ;;
 455   am33_2.0-*-linux*)
 456     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 457     ;;
 458   sh-*-linux*)
 459     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 460     ;;
 461   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 462     noconfigdirs="$noconfigdirs ${libgcj}"
 463     noconfigdirs="$noconfigdirs target-examples"
 464     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 465     noconfigdirs="$noconfigdirs tcl tix tk itcl libgui sim"
 466     noconfigdirs="$noconfigdirs expect dejagnu"
 467     # the C++ libraries don't build on top of CE's C libraries
 468     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 469     noconfigdirs="$noconfigdirs target-newlib"
 470     case "${host}" in
 471       *-*-cygwin*) ;; # keep gdb and readline
 472       *) noconfigdirs="$noconfigdirs gdb readline"
 473          ;;
 474     esac
 475     ;;
 476   arc-*-*)
 477     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 478     ;;
 479   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 480     noconfigdirs="$noconfigdirs ${libgcj}"
 481     ;;
 482   arm-*-elf* | strongarm-*-elf* | xscale-*-elf*)
 483     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 484     ;;
 485   arm-*-pe*)
 486     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 487     ;;
 488   arm-*-oabi*)
 489     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 490     ;;
 491   thumb-*-coff)
 492     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 493     ;;
 494   thumb-*-elf)
 495     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 496     ;;
 497   thumb-*-oabi)
 498     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 499     ;;
 500   thumb-*-pe)
 501     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 502     ;;
 503   arm-*-riscix*)
 504     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 505     ;;
 506   avr-*-*)
 507     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 508     ;;
 509   c4x-*-* | tic4x-*-*)
 510     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 511     ;;
 512   c54x*-*-* | tic54x-*-*)
 513     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 514     ;;
 515   cris-*-*)
 516     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 517     ;;
 518   crx-*-*)
 519     noconfigdirs="$noconfigdirs target-libgloss target-libstdc++-v3 target-mudflap ${libgcj}"
 520     ;;
 521   d10v-*-*)
 522     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 523     ;;
 524   d30v-*-*)
 525     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 526     ;;
 527   fr30-*-elf*)
 528     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 529     ;;
 530   frv-*-*)
 531     noconfigdirs="$noconfigdirs ${libgcj}"
 532     ;;
 533   h8300*-*-*)
 534     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 535     ;;
 536   h8500-*-*)
 537     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 538     ;;
 539   hppa*64*-*-linux* | parisc*64*-*-linux*)
 540     # In this case, it's because the hppa64-linux target is for
 541     # the kernel only at this point and has no libc, and thus no
 542     # headers, crt*.o, etc., all of which are needed by these.
 543     noconfigdirs="$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 tix readline mmalloc libgui itcl gdb"
 564     ;;
 565   ia64*-**-hpux*)
 566     # No gdb or ld support yet.
 567     noconfigdirs="$noconfigdirs ${libgcj} tix readline mmalloc libgui itcl gdb ld"
 568     ;;
 569   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 570     noconfigdirs="$noconfigdirs ${libgcj}"
 571     ;;
 572   i[[3456789]]86-*-linux*)
 573     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 574     # not build java stuff by default.
 575     case "${target}" in
 576       *-*-*libc1*)
 577         noconfigdirs="$noconfigdirs ${libgcj}";;
 578     esac
 579
 580     # This section makes it possible to build newlib natively on linux.
 581     # If we are using a cross compiler then don't configure newlib.
 582     if test x${is_cross_compiler} != xno ; then
 583       noconfigdirs="$noconfigdirs target-newlib"
 584     fi
 585     noconfigdirs="$noconfigdirs target-libgloss"
 586     # If we are not using a cross compiler, do configure newlib.
 587     # Note however, that newlib will only be configured in this situation
 588     # if the --with-newlib option has been given, because otherwise
 589     # 'target-newlib' will appear in skipdirs.
 590     ;;
 591   i[[3456789]]86-*-mingw32*)
 592     target_configdirs="$target_configdirs target-mingw"
 593     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 594
 595     # Can't build gdb for mingw32 if not native.
 596     case "${host}" in
 597       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 598       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix gnuserv"
 599          ;;
 600     esac
 601     ;;
 602   *-*-cygwin*)
 603     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 604     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 605     # always build newlib if winsup directory is present.
 606     if test -d "$srcdir/winsup"
 607     then
 608       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 609     else
 610       echo "Warning: winsup is missing so newlib can't be built."
 611     fi
 612
 613     # Can't build gdb for Cygwin if not native.
 614     case "${host}" in
 615       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 616       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix libgui gnuserv"
 617          ;;
 618     esac
 619     ;;
 620   i[[3456789]]86-*-pe)
 621     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 622     ;;
 623   i[[3456789]]86-*-sco3.2v5*)
 624     # The linker does not yet know about weak symbols in COFF,
 625     # and is not configured to handle mixed ELF and COFF.
 626     noconfigdirs="$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 tix 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 tix gnuserv ${libgcj}"
 679     ;;
 680   powerpc-*-beos*)
 681     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 682     ;;
 683   powerpc-*-eabi)
 684     noconfigdirs="$noconfigdirs ${libgcj}"
 685     ;;
 686   rs6000-*-lynxos*)
 687     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 688     ;;
 689   rs6000-*-aix*)
 690     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 691     ;;
 692   rs6000-*-*)
 693     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 694     ;;
 695   m68k-apollo-*)
 696     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 697     ;;
 698   mips*-*-irix5*)
 699     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 700     ;;
 701   mips*-*-irix6*)
 702     # Linking libjava exceeds command-line length limits on at least
 703     # IRIX 6.2, but not on IRIX 6.5.
 704     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 705     # <oldham@codesourcery.com>
 706     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 707     ;;
 708   mips*-dec-bsd*)
 709     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 710     ;;
 711   mips*-*-bsd*)
 712     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 713     ;;
 714   mipstx39-*-*)
 715     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 716     ;;
 717   mips64*-*-linux*)
 718     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 719     ;;
 720   mips*-*-linux*)
 721     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 722     ;;
 723   mips*-*-*)
 724     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 725     ;;
 726   romp-*-*)
 727     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 728     ;;
 729   sh-*-*)
 730     case "${host}" in
 731       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 732       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 733       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 734       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 735     esac
 736     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 737     ;;
 738   sh64-*-*)
 739     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 740     ;;
 741   sparc-*-elf*)
 742     noconfigdirs="$noconfigdirs ${libgcj}"
 743     ;;
 744   sparc64-*-elf*)
 745     noconfigdirs="$noconfigdirs ${libgcj}"
 746     ;;
 747   sparclite-*-*)
 748     noconfigdirs="$noconfigdirs ${libgcj}"
 749     ;;
 750   sparc-*-sunos4*)
 751     noconfigdirs="$noconfigdirs ${libgcj}"
 752     if test x${is_cross_compiler} != xno ; then
 753            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 754     else
 755            use_gnu_ld=no
 756     fi
 757     ;;
 758   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 759     ;;
 760   v810-*-*)
 761     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 762     ;;
 763   v850-*-*)
 764     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 765     ;;
 766   v850e-*-*)
 767     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 768     ;;
 769   v850ea-*-*)
 770     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 771     ;;
 772   vax-*-vms)
 773     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 774     ;;
 775   vax-*-*)
 776     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 777     ;;
 778   xtensa-*-*)
 779     noconfigdirs="$noconfigdirs ${libgcj}"
 780     ;;
 781   ip2k-*-*)
 782     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 783     ;;
 784   *-*-linux*)
 785     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 786     ;;
 787   *-*-lynxos*)
 788     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 789     ;;
 790   *-*-*)
 791     noconfigdirs="$noconfigdirs ${libgcj}"
 792     ;;
 793 esac
 794
 795 # If we aren't building newlib, then don't build libgloss, since libgloss
 796 # depends upon some newlib header files.
 797 case "${noconfigdirs}" in
 798   *target-libgloss*) ;;
 799   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 800 esac
 801
 802 # Work in distributions that contain no compiler tools, like Autoconf.
 803 tentative_cc=""
 804 host_makefile_frag=/dev/null
 805 if test -d ${srcdir}/config ; then
 806 case "${host}" in
 807   m68k-hp-hpux*)
 808     # Avoid "too much defining" errors from HPUX compiler.
 809     tentative_cc="cc -Wp,-H256000"
 810     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 811     # If it's HP/UX ar, this should be harmless.
 812     RANLIB="ar ts"
 813     ;;
 814   m68k-apollo-sysv*)
 815     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 816     ;;
 817   m68k-apollo-bsd*)
 818     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 819     # chokes on bfd, the compiler won't let you assign integers to enums, and
 820     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 821     # the apollo compiler" (the preferred version of GCC could be called cc,
 822     # or whatever), but I'm not sure leaving CC as cc is any better...
 823     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 824     # Used to have BISON=yacc.
 825     tentative_cc=gcc
 826     ;;
 827   m88k-dg-dgux*)
 828     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 829     ;;
 830   m88k-harris-cxux*)
 831     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 832     tentative_cc="cc -Xa"
 833     host_makefile_frag="config/mh-cxux"
 834     ;;
 835   m88k-motorola-sysv*)
 836     ;;
 837   mips*-dec-ultrix*)
 838     tentative_cc="cc -Wf,-XNg1000"
 839     host_makefile_frag="config/mh-decstation"
 840     ;;
 841   mips*-nec-sysv4*)
 842     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 843     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 844     host_makefile_frag="config/mh-necv4"
 845     ;;
 846   mips*-sgi-irix4*)
 847     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 848     # environment.  Also bump switch table size so that cp-parse will
 849     # compile.  Bump string length limit so linker builds.
 850     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 851     ;;
 852   mips*-*-sysv4*)
 853     host_makefile_frag="config/mh-sysv4"
 854     ;;
 855   mips*-*-sysv*)
 856     # This is for a MIPS running RISC/os 4.52C.
 857
 858     # This is needed for GDB, but needs to be in the top-level make because
 859     # if a library is compiled with the bsd headers and gets linked with the
 860     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 861     # a different size).
 862     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 863     # known except to select the sysv environment.  Could we use /proc instead?
 864     # These "sysv environments" and "bsd environments" often end up being a pain.
 865     #
 866     # This is not part of CFLAGS because perhaps not all C compilers have this
 867     # option.
 868     tentative_cc="cc -systype sysv"
 869     ;;
 870   i370-ibm-opened*)
 871     tentative_cc="c89"
 872     ;;
 873   i[[3456789]]86-*-sysv5*)
 874     host_makefile_frag="config/mh-sysv5"
 875     ;;
 876   i[[3456789]]86-*-dgux*)
 877     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 878     host_makefile_frag="config/mh-dgux386"
 879     ;;
 880   i[[3456789]]86-ncr-sysv4.3*)
 881     # The MetaWare compiler will generate a copyright message unless you
 882     # turn it off by adding the -Hnocopyr flag.
 883     tentative_cc="cc -Hnocopyr"
 884     ;;
 885   i[[3456789]]86-ncr-sysv4*)
 886     # for an NCR 3000 (i486/SVR4) system.
 887     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 888     # This compiler not only emits obnoxious copyright messages every time
 889     # you run it, but it chokes and dies on a whole bunch of GNU source
 890     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 891     tentative_cc="/usr/ccs/ATT/cc"
 892     host_makefile_frag="config/mh-ncr3000"
 893     ;;
 894   i[[3456789]]86-*-sco3.2v5*)
 895     ;;
 896   i[[3456789]]86-*-sco*)
 897     # The native C compiler botches some simple uses of const.  Unfortunately,
 898     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 899     tentative_cc="cc -Dconst="
 900     host_makefile_frag="config/mh-sco"
 901     ;;
 902   i[[3456789]]86-*-udk*)
 903     host_makefile_frag="config/mh-sysv5"
 904     ;;
 905   i[[3456789]]86-*-solaris2*)
 906     host_makefile_frag="config/mh-sysv4"
 907     ;;
 908   i[[3456789]]86-*-msdosdjgpp*)
 909     host_makefile_frag="config/mh-djgpp"
 910     ;;
 911   *-cygwin*)
 912     host_makefile_frag="config/mh-cygwin"
 913     ;;
 914   *-mingw32*)
 915     host_makefile_frag="config/mh-mingw32"
 916     ;;
 917   *-interix*)
 918     host_makefile_frag="config/mh-interix"
 919     ;;
 920   vax-*-ultrix2*)
 921     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 922     tentative_cc=gcc
 923     ;;
 924   *-*-solaris2*)
 925     host_makefile_frag="config/mh-solaris"
 926     ;;
 927   m68k-sun-sunos*)
 928     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 929     # without overflowing the jump tables (-J says to use a 32 bit table)
 930     tentative_cc="cc -J"
 931     ;;
 932   *-hp-hpux*)
 933     tentative_cc="cc -Wp,-H256000"
 934     ;;
 935   *-*-hiux*)
 936     tentative_cc="cc -Wp,-H256000"
 937     ;;
 938   rs6000-*-lynxos*)
 939     # /bin/cc is less than useful for our purposes.  Always use GCC
 940     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 941     host_makefile_frag="config/mh-lynxrs6k"
 942     ;;
 943   *-*-lynxos*)
 944     # /bin/cc is less than useful for our purposes.  Always use GCC
 945     tentative_cc="/bin/gcc"
 946     ;;
 947   *-*-sysv4*)
 948     host_makefile_frag="config/mh-sysv4"
 949     ;;
 950 esac
 951 fi
 952
 953 # If we aren't going to be using gcc, see if we can extract a definition
 954 # of CC from the fragment.
 955 # Actually, use the 'pre-extracted' version above.
 956 if test -z "${CC}" && test "${build}" = "${host}" ; then
 957   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 958   found=
 959   for dir in $PATH; do
 960     test -z "$dir" && dir=.
 961     if test -f $dir/gcc; then
 962       found=yes
 963       break
 964     fi
 965   done
 966   IFS="$save_ifs"
 967   if test -z "${found}" && test -n "${tentative_cc}" ; then
 968     CC=$tentative_cc
 969   fi
 970 fi
 971
 972 if test "${build}" != "${host}" ; then
 973   # If we are doing a Canadian Cross, in which the host and build systems
 974   # are not the same, we set reasonable default values for the tools.
 975
 976   CC=${CC-${host_alias}-gcc}
 977   CFLAGS=${CFLAGS-"-g -O2"}
 978   CXX=${CXX-${host_alias}-c++}
 979   CXXFLAGS=${CXXFLAGS-"-g -O2"}
 980   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
 981   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
 982   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
 983   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
 984   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
 985   BUILD_DIR_PREFIX=${build_subdir}
 986   BUILD_PREFIX=${build_alias}-
 987   BUILD_PREFIX_1=${build_alias}-
 988
 989 else
 990   # Set reasonable default values for some tools even if not Canadian.
 991   # Of course, these are different reasonable default values, originally
 992   # specified directly in the Makefile.
 993   # We don't export, so that autoconf can do its job.
 994   # Note that all these settings are above the fragment inclusion point
 995   # in Makefile.in, so can still be overridden by fragments.
 996   # This is all going to change when we autoconfiscate...
 997
 998   CC_FOR_BUILD="\$(CC)"
 999   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
1000   BUILD_DIR_PREFIX=
1001   BUILD_PREFIX=
1002   BUILD_PREFIX_1=loser-
1003
1004   AC_PROG_CC
1005
1006   # We must set the default linker to the linker used by gcc for the correct
1007   # operation of libtool.  If LD is not defined and we are using gcc, try to
1008   # set the LD default to the ld used by gcc.
1009   if test -z "$LD"; then
1010     if test "$GCC" = yes; then
1011       case $build in
1012       *-*-mingw*)
1013         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1014       *)
1015         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1016       esac
1017       case $gcc_prog_ld in
1018       # Accept absolute paths.
1019       [[\\/]* | [A-Za-z]:[\\/]*)]
1020         LD="$gcc_prog_ld" ;;
1021       esac
1022     fi
1023   fi
1024
1025   CXX=${CXX-"c++"}
1026   CFLAGS=${CFLAGS-"-g"}
1027   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1028 fi
1029
1030 ACX_PROG_GNAT
1031 ACX_PROG_CMP_IGNORE_INITIAL
1032
1033 # Check for GMP
1034 gmplibs=
1035 gmpinc=
1036 have_gmp=yes
1037 # Specify a location for gmp
1038 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1039
1040 if test "x$with_gmp_dir" != x && test -f "$with_gmp_dir/gmp.h"; then
1041   gmpinc="-I$with_gmp_dir"
1042   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1043     gmplibs="$with_gmp_dir/.libs/libgmp.a"
1044   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1045     gmplibs="$with_gmp_dir/_libs/libgmp.a"
1046   fi
1047   # One of the later tests will catch the error if neither library is present.
1048 fi
1049
1050 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1051
1052 if test "x$with_gmp" != x && test -d "$with_gmp"; then
1053   gmplibs="-L$with_gmp/lib -lgmp"
1054   gmpinc="-I$with_gmp/include"
1055 fi
1056
1057 # Use system gmp if nothing else specified
1058 if test "x$gmplibs" = x; then
1059   gmplibs="-lgmp"
1060 fi
1061
1062 saved_CFLAGS="$CFLAGS"
1063 CFLAGS="$CFLAGS $gmpinc"
1064 # Check GMP actually works
1065 AC_MSG_CHECKING([for correct version of gmp.h])
1066 AC_TRY_COMPILE([#include "gmp.h"],[
1067 #if __GNU_MP_VERSION < 3
1068 choke me
1069 #endif
1070 ], [AC_MSG_RESULT([yes])],
1071   [AC_MSG_RESULT([no]); have_gmp=no])
1072
1073 if test x"$have_gmp" = xyes; then
1074   AC_MSG_CHECKING([for mpf_init in -lgmp])
1075
1076   saved_LIBS="$LIBS"
1077   LIBS="$LIBS $gmplibs"
1078   AC_TRY_LINK([#include <gmp.h>], [mpf_t n; mpf_init(n);],
1079     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1080   LIBS="$saved_LIBS"
1081   CFLAGS="$saved_CFLAGS"
1082 fi
1083
1084 AC_SUBST(gmplibs)
1085 AC_SUBST(gmpinc)
1086
1087 # By default, C is the only stage 1 language.
1088 stage1_languages=c
1089 AC_SUBST(stage1_languages)
1090
1091 # Figure out what language subdirectories are present.
1092 # Look if the user specified --enable-languages="..."; if not, use
1093 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1094 # go away some day.
1095 # NB:  embedded tabs in this IF block -- do not untabify
1096 if test -d ${srcdir}/gcc; then
1097   if test x"${enable_languages+set}" != xset; then
1098     if test x"${LANGUAGES+set}" = xset; then
1099       enable_languages="${LANGUAGES}"
1100         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1101     else
1102       enable_languages=all
1103     fi
1104   else
1105     if test x"${enable_languages}" = x ||
1106        test x"${enable_languages}" = xyes;
1107        then
1108       echo configure.in: --enable-languages needs at least one language argument 1>&2
1109       exit 1
1110     fi
1111   fi
1112   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1113
1114   # First scan to see if an enabled language requires some other language.
1115   # We assume that a given config-lang.in will list all the language
1116   # front ends it requires, even if some are required indirectly.
1117   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1118     case ${lang_frag} in
1119       ..) ;;
1120       # The odd quoting in the next line works around
1121       # an apparent bug in bash 1.12 on linux.
1122       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1123       *)
1124         # From the config-lang.in, get $language, $lang_requires
1125         language=
1126         lang_requires=
1127         . ${lang_frag}
1128         for other in ${lang_requires} ; do
1129           case ,${enable_languages}, in
1130             *,$other,*) ;;
1131             *,all,*) ;;
1132             *,$language,*)
1133               echo " \`$other' language required by \`$language'; enabling" 1>&2
1134               enable_languages="${enable_languages},${other}"
1135               ;;
1136           esac
1137         done
1138         ;;
1139     esac
1140   done
1141
1142   new_enable_languages=c
1143   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1144
1145   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1146     case ${lang_frag} in
1147       ..) ;;
1148       # The odd quoting in the next line works around
1149       # an apparent bug in bash 1.12 on linux.
1150       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1151       *)
1152         # From the config-lang.in, get $language, $target_libs,
1153         # $lang_dirs, $boot_language, and $build_by_default
1154         language=
1155         target_libs=
1156         lang_dirs=
1157         boot_language=
1158         build_by_default=
1159         need_gmp=
1160         . ${lang_frag}
1161         # This is quite sensitive to the ordering of the case statement arms.
1162         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1163           *::*:*)
1164             echo "${lang_frag} doesn't set \$language." 1>&2
1165             exit 1
1166             ;;
1167           *:ada:no:*)
1168             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1169             add_this_lang=no
1170             ;;
1171           *,${language},*:*:*:*)
1172             # Language was explicitly selected; include it.
1173             add_this_lang=yes
1174             ;;
1175           *,all,*:*:*:no)
1176             # 'all' was selected, but this is not a default language
1177             # so do not include it.
1178             add_this_lang=no
1179             ;;
1180           *,all,*:*:*:*)
1181             # 'all' was selected and this is a default language; include it.
1182             add_this_lang=yes
1183             ;;
1184           *)
1185             add_this_lang=no
1186             ;;
1187         esac
1188
1189         # Disable language that need GMP if it isn't available.
1190         if test  x"$need_gmp" = xyes && test x"$have_gmp" = xno; then
1191           add_this_lang=no
1192         fi
1193
1194         case $add_this_lang in
1195           no)
1196             # Remove language-dependent dirs.
1197             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1198             ;;
1199           *)
1200             new_enable_languages="$new_enable_languages,$language"
1201             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1202             case ${boot_language} in
1203               yes)
1204                 # Add to (comma-separated) list of stage 1 languages.
1205                 stage1_languages="${stage1_languages},${language}"
1206                 ;;
1207             esac
1208             ;;
1209         esac
1210         ;;
1211     esac
1212   done
1213
1214   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1215   if test "x$missing_languages" != x; then
1216     AC_MSG_ERROR([
1217 The following requested languages were not found: ${missing_languages}])
1218   fi
1219
1220   if test "x$new_enable_languages" != "x$enable_languages"; then
1221     echo The following languages will be built: ${new_enable_languages}
1222   fi
1223   enable_languages="$new_enable_languages"
1224   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1225 fi
1226
1227 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
1228 # $target_configdirs.
1229 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1230
1231 notsupp=""
1232 for dir in . $skipdirs $noconfigdirs ; do
1233   dirname=`echo $dir | sed -e s/target-//g`
1234   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1235     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1236     if test -r $srcdir/$dirname/configure ; then
1237       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1238         true
1239       else
1240         notsupp="$notsupp $dir"
1241       fi
1242     fi
1243   fi
1244   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1245     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1246     if test -r $srcdir/$dirname/configure ; then
1247       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1248         true
1249       else
1250         notsupp="$notsupp $dir"
1251       fi
1252     fi
1253   fi
1254 done
1255
1256 # Sometimes the tools are distributed with libiberty but with no other
1257 # libraries.  In that case, we don't want to build target-libiberty.
1258 if test -n "${target_configdirs}" ; then
1259   others=
1260   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1261     if test "$i" != "libiberty" ; then
1262       if test -r $srcdir/$i/configure ; then
1263         others=yes;
1264         break;
1265       fi
1266     fi
1267   done
1268   if test -z "${others}" ; then
1269     target_configdirs=
1270   fi
1271 fi
1272
1273 # Quietly strip out all directories which aren't configurable in this tree.
1274 # This relies on all configurable subdirectories being autoconfiscated, which
1275 # is now the case.
1276 build_configdirs_all="$build_configdirs"
1277 build_configdirs=
1278 for i in ${build_configdirs_all} ; do
1279   j=`echo $i | sed -e s/build-//g`
1280   if test -f ${srcdir}/$j/configure ; then
1281     build_configdirs="${build_configdirs} $i"
1282   fi
1283 done
1284
1285 configdirs_all="$configdirs"
1286 configdirs=
1287 for i in ${configdirs_all} ; do
1288   if test -f ${srcdir}/$i/configure ; then
1289     configdirs="${configdirs} $i"
1290   fi
1291 done
1292
1293 target_configdirs_all="$target_configdirs"
1294 target_configdirs=
1295 for i in ${target_configdirs_all} ; do
1296   j=`echo $i | sed -e s/target-//g`
1297   if test -f ${srcdir}/$j/configure ; then
1298     target_configdirs="${target_configdirs} $i"
1299   fi
1300 done
1301
1302 # Produce a warning message for the subdirs we can't configure.
1303 # This isn't especially interesting in the Cygnus tree, but in the individual
1304 # FSF releases, it's important to let people know when their machine isn't
1305 # supported by the one or two programs in a package.
1306
1307 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1308   # If $appdirs is non-empty, at least one of those directories must still
1309   # be configured, or we error out.  (E.g., if the gas release supports a
1310   # specified target in some subdirs but not the gas subdir, we shouldn't
1311   # pretend that all is well.)
1312   if test -n "$appdirs" ; then
1313     for dir in $appdirs ; do
1314       if test -r $dir/Makefile.in ; then
1315         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1316           appdirs=""
1317           break
1318         fi
1319         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1320           appdirs=""
1321           break
1322         fi
1323       fi
1324     done
1325     if test -n "$appdirs" ; then
1326       echo "*** This configuration is not supported by this package." 1>&2
1327       exit 1
1328     fi
1329   fi
1330   # Okay, some application will build, or we don't care to check.  Still
1331   # notify of subdirs not getting built.
1332   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1333   echo "    ${notsupp}" 1>&2
1334   echo "    (Any other directories should still work fine.)" 1>&2
1335 fi
1336
1337 case "$host" in
1338   *msdosdjgpp*)
1339     enable_gdbtk=no ;;
1340 esac
1341
1342 copy_dirs=
1343
1344 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1345 # the named directory are copied to $(tooldir)/sys-include.
1346 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1347   if test x${is_cross_compiler} = xno ; then
1348     echo 1>&2 '***' --with-headers is only supported when cross compiling
1349     exit 1
1350   fi
1351   if test x"${with_headers}" != xyes ; then
1352     case "${exec_prefixoption}" in
1353     "") x=${prefix} ;;
1354     *) x=${exec_prefix} ;;
1355     esac
1356     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1357   fi
1358 fi
1359
1360 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1361 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1362 # are permitted.
1363 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1364   if test x${is_cross_compiler} = xno ; then
1365     echo 1>&2 '***' --with-libs is only supported when cross compiling
1366     exit 1
1367   fi
1368   if test x"${with_libs}" != xyes ; then
1369     # Copy the libraries in reverse order, so that files in the first named
1370     # library override files in subsequent libraries.
1371     case "${exec_prefixoption}" in
1372     "") x=${prefix} ;;
1373     *) x=${exec_prefix} ;;
1374     esac
1375     for l in ${with_libs}; do
1376       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1377     done
1378   fi
1379 fi
1380
1381 # Handle ${copy_dirs}
1382 set fnord ${copy_dirs}
1383 shift
1384 while test $# != 0 ; do
1385   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1386     :
1387   else
1388     echo Copying $1 to $2
1389
1390     # Use the install script to create the directory and all required
1391     # parent directories.
1392     if test -d $2 ; then
1393       :
1394     else
1395       echo >config.temp
1396       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1397     fi
1398
1399     # Copy the directory, assuming we have tar.
1400     # FIXME: Should we use B in the second tar?  Not all systems support it.
1401     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1402
1403     # It is the responsibility of the user to correctly adjust all
1404     # symlinks.  If somebody can figure out how to handle them correctly
1405     # here, feel free to add the code.
1406
1407     echo $1 > $2/COPIED
1408   fi
1409   shift; shift
1410 done
1411
1412 extra_arflags_for_target=
1413 extra_nmflags_for_target=
1414 extra_ranlibflags_for_target=
1415 target_makefile_frag=/dev/null
1416 case "${target}" in
1417   i[[3456789]]86-*-netware*)
1418     target_makefile_frag="config/mt-netware"
1419     ;;
1420   powerpc-*-netware*)
1421     target_makefile_frag="config/mt-netware"
1422     ;;
1423   *-*-linux*)
1424     target_makefile_frag="config/mt-linux"
1425     ;;
1426   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1427     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1428     # commands to handle both 32-bit and 64-bit objects.  These flags are
1429     # harmless if we're using GNU nm or ar.
1430     extra_arflags_for_target=" -X32_64"
1431     extra_nmflags_for_target=" -B -X32_64"
1432     ;;
1433   *-*-darwin*)
1434     # ranlib from Darwin requires the -c flag to look at common symbols.
1435     extra_ranlibflags_for_target=" -c"
1436     ;;
1437   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1438     target_makefile_frag="config/mt-wince"
1439     ;;
1440 esac
1441
1442 alphaieee_frag=/dev/null
1443 case $target in
1444   alpha*-*-*)
1445     # This just makes sure to use the -mieee option to build target libs.
1446     # This should probably be set individually by each library.
1447     alphaieee_frag="config/mt-alphaieee"
1448     ;;
1449 esac
1450
1451 # If --enable-target-optspace always use -Os instead of -O2 to build
1452 # the target libraries, similarly if it is not specified, use -Os
1453 # on selected platforms.
1454 ospace_frag=/dev/null
1455 case "${enable_target_optspace}:${target}" in
1456   yes:*)
1457     ospace_frag="config/mt-ospace"
1458     ;;
1459   :d30v-*)
1460     ospace_frag="config/mt-d30v"
1461     ;;
1462   :m32r-* | :d10v-* | :fr30-*)
1463     ospace_frag="config/mt-ospace"
1464     ;;
1465   no:* | :*)
1466     ;;
1467   *)
1468     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1469     ;;
1470 esac
1471
1472 # Set with_gnu_as and with_gnu_ld as appropriate.
1473 #
1474 # This is done by determining whether or not the appropriate directory
1475 # is available, and by checking whether or not specific configurations
1476 # have requested that this magic not happen.
1477 #
1478 # The command line options always override the explicit settings in
1479 # configure.in, and the settings in configure.in override this magic.
1480 #
1481 # If the default for a toolchain is to use GNU as and ld, and you don't
1482 # want to do that, then you should use the --without-gnu-as and
1483 # --without-gnu-ld options for the configure script.
1484
1485 if test x${use_gnu_as} = x &&
1486    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1487   with_gnu_as=yes
1488   extra_host_args="$extra_host_args --with-gnu-as"
1489 fi
1490
1491 if test x${use_gnu_ld} = x &&
1492    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1493   with_gnu_ld=yes
1494   extra_host_args="$extra_host_args --with-gnu-ld"
1495 fi
1496
1497 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1498 # can detect this case.
1499
1500 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1501   with_newlib=yes
1502   extra_host_args="$extra_host_args --with-newlib"
1503 fi
1504
1505 if test x${with_libbanshee} = xyes && echo " ${configdirs} " | grep " libbanshee " >/dev/null 2>&1; then
1506   extra_host_args="$extra_host_args --with-libbanshee"
1507 fi
1508
1509 # Default to using --with-stabs for certain targets.
1510 if test x${with_stabs} = x ; then
1511   case "${target}" in
1512   mips*-*-irix[[56]]*)
1513     ;;
1514   mips*-*-* | alpha*-*-osf*)
1515     with_stabs=yes;
1516     extra_host_args="${extra_host_args} --with-stabs"
1517     ;;
1518   esac
1519 fi
1520
1521 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1522 # them automatically.
1523 case "${host}" in
1524   hppa*64*-*-hpux11*)
1525     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1526     ;;
1527 esac
1528
1529 # Some systems (e.g., one of the i386-aix systems the gas testers are
1530 # using) don't handle "\$" correctly, so don't use it here.
1531 tooldir='${exec_prefix}'/${target_alias}
1532 build_tooldir=${tooldir}
1533
1534 # Generate default definitions for YACC, M4, LEX and other programs that run
1535 # on the build machine.  These are used if the Makefile can't locate these
1536 # programs in objdir.
1537 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1538 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1539 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1540 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1541 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1542 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1543 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1544
1545 # Create a .gdbinit file which runs the one in srcdir
1546 # and tells GDB to look there for source files.
1547
1548 if test -r ${srcdir}/.gdbinit ; then
1549   case ${srcdir} in
1550     .) ;;
1551     *) cat > ./.gdbinit <<EOF
1552 # ${NO_EDIT}
1553 dir ${srcdir}
1554 dir .
1555 source ${srcdir}/.gdbinit
1556 EOF
1557     ;;
1558   esac
1559 fi
1560
1561 # Make sure that the compiler is able to generate an executable.  If it
1562 # can't, we are probably in trouble.  We don't care whether we can run the
1563 # executable--we might be using a cross compiler--we only care whether it
1564 # can be created.  At this point the main configure script has set CC.
1565 we_are_ok=no
1566 echo "int main () { return 0; }" > conftest.c
1567 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1568 if test $? = 0 ; then
1569   if test -s conftest || test -s conftest.exe ; then
1570     we_are_ok=yes
1571   fi
1572 fi
1573 case $we_are_ok in
1574   no)
1575     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1576     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1577     rm -f conftest*
1578     exit 1
1579     ;;
1580 esac
1581 rm -f conftest*
1582
1583 # The Solaris /usr/ucb/cc compiler does not appear to work.
1584 case "${host}" in
1585   sparc-sun-solaris2*)
1586       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1587       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1588           could_use=
1589           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1590           if test -d /opt/cygnus/bin ; then
1591               if test "$could_use" = "" ; then
1592                   could_use="/opt/cygnus/bin"
1593               else
1594                   could_use="$could_use or /opt/cygnus/bin"
1595               fi
1596           fi
1597         if test "$could_use" = "" ; then
1598             echo "Warning: compilation may fail because you're using"
1599             echo "/usr/ucb/cc.  You should change your PATH or CC "
1600             echo "variable and rerun configure."
1601         else
1602             echo "Warning: compilation may fail because you're using"
1603             echo "/usr/ucb/cc, when you should use the C compiler from"
1604             echo "$could_use.  You should change your"
1605             echo "PATH or CC variable and rerun configure."
1606         fi
1607       fi
1608   ;;
1609 esac
1610
1611 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1612 # binutils tools will find libbfd.so.
1613 case "${enable_shared}" in
1614   no | "") SET_LIB_PATH= ;;
1615   *) SET_LIB_PATH="\$(REALLY_SET_LIB_PATH)" ;;
1616 esac
1617
1618 case "${host}" in
1619   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1620   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1621 esac
1622
1623 # Record target_configdirs and the configure arguments for target and
1624 # build configuration in Makefile.
1625 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1626 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1627
1628 # Determine whether gdb needs tk/tcl or not.
1629 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1630 # and in that case we want gdb to be built without tk.  Ugh!
1631 # In fact I believe gdb is the *only* package directly dependent on tk,
1632 # so we should be able to put the 'maybe's in unconditionally and
1633 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1634 # 100% sure that that's safe though.
1635
1636 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-tix maybe-all-libgui"
1637 case "$enable_gdbtk" in
1638   no)
1639     GDB_TK="" ;;
1640   yes)
1641     GDB_TK="${gdb_tk}" ;;
1642   *)
1643     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1644     # distro.  Eventually someone will fix this and move Insight, nee
1645     # gdbtk to a separate directory.
1646     if test -d ${srcdir}/gdb/gdbtk ; then
1647       GDB_TK="${gdb_tk}"
1648     else
1649       GDB_TK=""
1650     fi
1651     ;;
1652 esac
1653
1654 # Strip out unwanted targets.
1655
1656 # While at that, we remove Makefiles if we were started for recursive
1657 # configuration, so that the top-level Makefile reconfigures them,
1658 # like we used to do when configure itself was recursive.
1659
1660 # Loop over modules.  $extrasub must be used with care, limiting as
1661 # much as possible the usage of range addresses.  That's because autoconf
1662 # splits the sed script to overcome limits in the number of commands,
1663 # and relying on carefully-timed sed passes may turn out to be very hard
1664 # to maintain later.  In this particular case, you just have to be careful
1665 # not to nest @if/@endif pairs, because configure will not warn you at all.
1666
1667 AC_ARG_ENABLE([bootstrap],
1668 [  --enable-bootstrap     Enable bootstrapping [no]],,
1669 enable_bootstrap=no)
1670 if test -d ${srcdir}/gcc; then
1671   case "$host:$target:$enable_bootstrap" in
1672     $build:$build:yes | *:no) ;;
1673     *:yes) AC_MSG_ERROR([cannot bootstrap a cross-compiler]) ;;
1674     *) AC_MSG_ERROR([invalid option for --enable-bootstrap]) ;;
1675   esac
1676 else
1677   if test $enable_bootstrap = yes; then
1678     AC_MSG_ERROR([cannot bootstrap without a compiler])
1679   fi
1680 fi
1681
1682 case "$enable_bootstrap" in
1683   yes)
1684     default_target=bootstrap
1685     bootstrap_suffix=bootstrap ;;
1686   no)
1687     default_target=all
1688     bootstrap_suffix=no-bootstrap ;;
1689 esac
1690 AC_SUBST(default_target)
1691
1692 for module in ${build_configdirs} ; do
1693   if test -z "${no_recursion}" \
1694      && test -f ${build_subdir}/${module}/Makefile; then
1695     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1696     rm -f ${build_subdir}/${module}/Makefile
1697   fi
1698   extrasub="$extrasub
1699 /^@if build-$module\$/d
1700 /^@endif build-$module\$/d
1701 /^@if build-$module-$bootstrap_suffix\$/d
1702 /^@endif build-$module-$bootstrap_suffix\$/d"
1703 done
1704 for module in ${configdirs} ; do
1705   if test -z "${no_recursion}" \
1706      && test -f ${module}/Makefile; then
1707     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1708     rm -f ${module}/Makefile
1709   fi
1710   extrasub="$extrasub
1711 /^@if $module\$/d
1712 /^@endif $module\$/d
1713 /^@if $module-$bootstrap_suffix\$/d
1714 /^@endif $module-$bootstrap_suffix\$/d"
1715 done
1716 for module in ${target_configdirs} ; do
1717   if test -z "${no_recursion}" \
1718      && test -f ${target_subdir}/${module}/Makefile; then
1719     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1720     rm -f ${target_subdir}/${module}/Makefile
1721   fi
1722   extrasub="$extrasub
1723 /^@if target-$module\$/d
1724 /^@endif target-$module\$/d
1725 /^@if target-$module-$bootstrap_suffix\$/d
1726 /^@endif target-$module-$bootstrap_suffix\$/d"
1727 done
1728
1729 extrasub="$extrasub
1730 /^@if /,/^@endif /d"
1731
1732 # Create the serialization dependencies.  This uses a temporary file.
1733
1734 AC_ARG_ENABLE([serial-configure],
1735 [  --enable-serial-[{host,target,build}-]configure
1736                           Force sequential configuration of
1737                           sub-packages for the host, target or build
1738                           machine, or all sub-packages])
1739
1740 case ${enable_serial_configure} in
1741   yes)
1742     enable_serial_build_configure=yes
1743     enable_serial_host_configure=yes
1744     enable_serial_target_configure=yes
1745     ;;
1746 esac
1747
1748 # These force 'configure's to be done one at a time, to avoid problems
1749 # with contention over a shared config.cache.
1750 rm -f serdep.tmp
1751 echo '# serdep.tmp' > serdep.tmp
1752 olditem=
1753 test "x${enable_serial_build_configure}" = xyes &&
1754 for item in ${build_configdirs} ; do
1755   case ${olditem} in
1756     "") ;;
1757     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1758   esac
1759   olditem=${item}
1760 done
1761 olditem=
1762 test "x${enable_serial_host_configure}" = xyes &&
1763 for item in ${configdirs} ; do
1764   case ${olditem} in
1765     "") ;;
1766     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1767   esac
1768   olditem=${item}
1769 done
1770 olditem=
1771 test "x${enable_serial_target_configure}" = xyes &&
1772 for item in ${target_configdirs} ; do
1773   case ${olditem} in
1774     "") ;;
1775     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1776   esac
1777   olditem=${item}
1778 done
1779 serialization_dependencies=serdep.tmp
1780 AC_SUBST_FILE(serialization_dependencies)
1781
1782 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1783 # target and nonopt.  These are the ones we might not want to pass
1784 # down to subconfigures.  Also strip program-prefix, program-suffix,
1785 # and program-transform-name, so that we can pass down a consistent
1786 # program-transform-name.  If autoconf has put single quotes around
1787 # any of these arguments (because they contain shell metacharacters)
1788 # then this will fail; in practice this only happens for
1789 # --program-transform-name, so be sure to override --program-transform-name
1790 # at the end of the argument list.
1791 # These will be expanded by make, so quote '$'.
1792 cat <<\EOF_SED > conftestsed
1793 s/ --no[[^ ]]*/ /g
1794 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1795 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1796 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1797 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1798 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1799 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1800 s/ -cache-file[[= ]][[^ ]]*//g
1801 s/ -srcdir[[= ]][[^ ]]*//g
1802 s/ -host[[= ]][[^ ]]*//g
1803 s/ -build[[= ]][[^ ]]*//g
1804 s/ -target[[= ]][[^ ]]*//g
1805 s/ -program-prefix[[= ]][[^ ]]*//g
1806 s/ -program-suffix[[= ]][[^ ]]*//g
1807 s/ -program-transform-name[[= ]][[^ ]]*//g
1808 s/ [[^' -][^ ]*] / /
1809 s/^ *//;s/ *$//
1810 s,\$,$$,g
1811 EOF_SED
1812 sed -f conftestsed <<EOF_SED > conftestsed.out
1813  ${ac_configure_args}
1814 EOF_SED
1815 baseargs=`cat conftestsed.out`
1816 rm -f conftestsed conftestsed.out
1817
1818 # Add in --program-transform-name, after --program-prefix and
1819 # --program-suffix have been applied to it.  Autoconf has already
1820 # doubled dollar signs and backslashes in program_transform_name; we want
1821 # the backslashes un-doubled, and then the entire thing wrapped in single
1822 # quotes, because this will be expanded first by make and then by the shell.
1823 # Also, because we want to override the logic in subdir configure scripts to
1824 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1825 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1826 ${program_transform_name}
1827 EOF_SED
1828 gcc_transform_name=`cat conftestsed.out`
1829 rm -f conftestsed.out
1830 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1831
1832 # For the build-side libraries, we just need to pretend we're native,
1833 # and not use the same cache file.  Multilibs are neither needed nor
1834 # desired.
1835 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} ${baseargs}"
1836
1837 # For host modules, accept cache file option, or specification as blank.
1838 case "${cache_file}" in
1839 "") # empty
1840   cache_file_option="" ;;
1841 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1842   cache_file_option="--cache-file=${cache_file}" ;;
1843 *) # relative path
1844   cache_file_option="--cache-file=../${cache_file}" ;;
1845 esac
1846
1847 # Host dirs don't like to share a cache file either, horribly enough.
1848 # This seems to be due to autoconf 2.5x stupidity.
1849 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1850
1851 target_configargs=${baseargs}
1852
1853 # Passing a --with-cross-host argument lets the target libraries know
1854 # whether they are being built with a cross-compiler or being built
1855 # native.  However, it would be better to use other mechanisms to make the
1856 # sorts of decisions they want to make on this basis.  Please consider
1857 # this option to be deprecated.  FIXME.
1858 if test x${is_cross_compiler} = xyes ; then
1859   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1860 fi
1861
1862 # Default to --enable-multilib.
1863 if test x${enable_multilib} = x ; then
1864   target_configargs="--enable-multilib ${target_configargs}"
1865 fi
1866
1867 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1868 # changed from the earlier setting of with_newlib.
1869 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1870   target_configargs="--with-newlib ${target_configargs}"
1871 fi
1872
1873 # Different target subdirs use different values of certain variables
1874 # (notably CXX).  Worse, multilibs use *lots* of different values.
1875 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1876 # it doesn't automatically accept command-line overrides of them.
1877 # This means it's not safe for target subdirs to share a cache file,
1878 # which is disgusting, but there you have it.  Hopefully this can be
1879 # fixed in future.  It's still worthwhile to use a cache file for each
1880 # directory.  I think.
1881
1882 # Pass the appropriate --host, --build, and --cache-file arguments.
1883 target_configargs="--cache-file=./config.cache --host=${target_alias} --build=${build_alias} ${target_configargs}"
1884
1885 # provide a proper gxx_include_dir.
1886 # Note, if you change the default, make sure to fix both here and in
1887 # the gcc and libstdc++-v3 subdirectories.
1888 # Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
1889 case "${with_gxx_include_dir}" in
1890   yes)
1891     AC_MSG_ERROR([--with-gxx-include-dir=[[dir]] requires a directory])
1892     ;;
1893   no | "")
1894     case "${enable_version_specific_runtime_libs}" in
1895       yes) gxx_include_dir='${libsubdir}/include/c++' ;;
1896       *)
1897         . ${srcdir}/config.if
1898         gxx_include_dir='${prefix}/include/'${libstdcxx_incdir} ;;
1899     esac ;;
1900   *) gxx_include_dir=${with_gxx_include_dir} ;;
1901 esac
1902
1903 FLAGS_FOR_TARGET=
1904 case " $target_configdirs " in
1905  *" newlib "*)
1906   case " $target_configargs " in
1907   *" --with-newlib "*)
1908    case "$target" in
1909    *-cygwin*)
1910      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 $$s/winsup/w32api/include' ;;
1911    esac
1912
1913    # If we're not building GCC, don't discard standard headers.
1914    if test -d ${srcdir}/gcc; then
1915      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1916
1917      if test "${build}" != "${host}"; then
1918        # On Canadian crosses, CC_FOR_TARGET will have already been set
1919        # by `configure', so we won't have an opportunity to add -Bgcc/
1920        # to it.  This is right: we don't want to search that directory
1921        # for binaries, but we want the header files in there, so add
1922        # them explicitly.
1923        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
1924
1925        # Someone might think of using the pre-installed headers on
1926        # Canadian crosses, in case the installed compiler is not fully
1927        # compatible with the compiler being built.  In this case, it
1928        # would be better to flag an error than risking having
1929        # incompatible object files being constructed.  We can't
1930        # guarantee that an error will be flagged, but let's hope the
1931        # compiler will do it, when presented with incompatible header
1932        # files.
1933      fi
1934    fi
1935
1936    case "${target}-${is_cross_compiler}" in
1937    i[[3456789]]86-*-linux*-no)
1938       # Here host == target, so we don't need to build gcc,
1939       # so we don't want to discard standard headers.
1940       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
1941       ;;
1942    *)
1943       # If we're building newlib, use its generic headers last, but search
1944       # for any libc-related directories first (so make it the last -B
1945       # switch).
1946       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1947       ;;
1948    esac
1949    ;;
1950   esac
1951   ;;
1952 esac
1953
1954 # Allow the user to override the flags for
1955 # our build compiler if desired.
1956 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
1957
1958 # On Canadian crosses, we'll be searching the right directories for
1959 # the previously-installed cross compiler, so don't bother to add
1960 # flags for directories within the install tree of the compiler
1961 # being built; programs in there won't even run.
1962 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
1963   # Search for pre-installed headers if nothing else fits.
1964   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
1965 fi
1966
1967 if test "x${use_gnu_ld}" = x &&
1968    echo " ${configdirs} " | grep " ld " > /dev/null ; then
1969   # Arrange for us to find uninstalled linker scripts.
1970   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
1971 fi
1972
1973 if test "x${CC_FOR_TARGET+set}" = xset; then
1974   :
1975 elif test -d ${srcdir}/gcc; then
1976   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
1977 elif test "$host" = "$target"; then
1978   CC_FOR_TARGET='$(CC)'
1979 else
1980   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
1981 fi
1982 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
1983
1984 if test "x${GCJ_FOR_TARGET+set}" = xset; then
1985   :
1986 elif test -d ${srcdir}/gcc; then
1987   GCJ_FOR_TARGET='$$r/gcc/gcj -B$$r/gcc/'
1988 elif test "$host" = "$target"; then
1989   GCJ_FOR_TARGET='gcj'
1990 else
1991   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
1992 fi
1993 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
1994
1995 if test "x${GFORTRAN_FOR_TARGET+set}" = xset; then
1996   :
1997 elif test -d ${srcdir}/gcc; then
1998   GFORTRAN_FOR_TARGET='$$r/gcc/gfortran -B$$r/gcc/'
1999 elif test "$host" = "$target"; then
2000   GFORTRAN_FOR_TARGET='gfortran'
2001 else
2002   GFORTRAN_FOR_TARGET=`echo gfortran | sed "${program_transform_name}"`
2003 fi
2004 case $GFORTRAN_FOR_TARGET in
2005 *' $(FLAGS_FOR_TARGET)') ;;
2006 *) GFORTRAN_FOR_TARGET=$GFORTRAN_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
2007 esac
2008
2009 # Don't use libstdc++-v3's flags to configure/build itself.
2010 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'
2011 raw_libstdcxx_flags='-L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2012
2013 if test "x${CXX_FOR_TARGET+set}" = xset; then
2014   if test "x${RAW_CXX_FOR_TARGET+set}" != xset; then
2015     RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2016   fi
2017 elif test -d ${srcdir}/gcc; then
2018   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
2019   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
2020   # default whereas gcc does not.
2021   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
2022   # all other cases.
2023   CXX_FOR_TARGET='$$r/gcc/g++ -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
2024   RAW_CXX_FOR_TARGET='$$r/gcc/xgcc -shared-libgcc -B$$r/gcc/ -nostdinc++ '$raw_libstdcxx_flags
2025 elif test "$host" = "$target"; then
2026   CXX_FOR_TARGET='$(CXX)'
2027   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2028 else
2029   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
2030   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2031 fi
2032 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2033 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2034
2035 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2036 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2037
2038 # We want to defer the evaluation of `cmd`s and shell variables in
2039 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
2040 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
2041 # quotes, but we still have to duplicate `$'s so that shell variables
2042 # can be expanded by the nested make as shell variables, not as make
2043 # macros.
2044 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2045 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2046
2047 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
2048 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
2049 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
2050 GFORTRAN_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GFORTRAN_FOR_TARGET}"
2051 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
2052 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
2053 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
2054 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
2055
2056 # Makefile fragments.
2057 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2058 do
2059   eval fragval=\$$frag
2060   if test $fragval != /dev/null; then
2061     eval $frag=${srcdir}/$fragval
2062   fi
2063 done
2064 AC_SUBST_FILE(host_makefile_frag)
2065 AC_SUBST_FILE(target_makefile_frag)
2066 AC_SUBST_FILE(alphaieee_frag)
2067 AC_SUBST_FILE(ospace_frag)
2068
2069 # Miscellanea: directories, flags, etc.
2070 AC_SUBST(SET_LIB_PATH)
2071 AC_SUBST(RPATH_ENVVAR)
2072 AC_SUBST(BUILD_DIR_PREFIX)
2073 AC_SUBST(BUILD_PREFIX)
2074 AC_SUBST(BUILD_PREFIX_1)
2075 AC_SUBST(gcc_version_trigger)
2076 AC_SUBST(gcc_version)
2077 AC_SUBST(tooldir)
2078 AC_SUBST(build_tooldir)
2079 AC_SUBST(GDB_TK)
2080 AC_SUBST(gxx_include_dir)
2081 AC_SUBST(libstdcxx_incdir)
2082
2083 # Build module lists & subconfigure args.
2084 AC_SUBST(build_configargs)
2085 AC_SUBST(build_configdirs)
2086
2087 # Host module lists & subconfigure args.
2088 AC_SUBST(host_configargs)
2089 AC_SUBST(configdirs)
2090
2091 # Target module lists & subconfigure args.
2092 AC_SUBST(target_configargs)
2093 AC_SUBST(target_configdirs)
2094
2095 # Build tools.
2096 AC_SUBST(CC_FOR_BUILD)
2097 AC_SUBST(config_shell)
2098
2099 # Host tools.
2100 NCN_STRICT_CHECK_TOOL(AR, ar)
2101 NCN_STRICT_CHECK_TOOL(AS, as)
2102 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2103 NCN_STRICT_CHECK_TOOL(LD, ld)
2104 NCN_STRICT_CHECK_TOOL(NM, nm)
2105 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2106 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2107 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2108 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2109 AC_SUBST(CC)
2110 AC_SUBST(CXX)
2111 AC_SUBST(CFLAGS)
2112 AC_SUBST(CFLAGS_FOR_BUILD)
2113 AC_SUBST(CXXFLAGS)
2114
2115 # Target tools.
2116 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AR_FOR_TARGET, ar)
2117 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AS_FOR_TARGET, as)
2118 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_DLLTOOL_FOR_TARGET, dlltool)
2119 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_LD_FOR_TARGET, ld)
2120 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_NM_FOR_TARGET, nm)
2121 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_RANLIB_FOR_TARGET, ranlib, :)
2122 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_WINDRES_FOR_TARGET, windres)
2123
2124 AC_SUBST(GCC_FOR_TARGET)
2125 AC_SUBST(FLAGS_FOR_TARGET)
2126 AC_SUBST(CC_FOR_TARGET)
2127 AC_SUBST(GCJ_FOR_TARGET)
2128 AC_SUBST(GFORTRAN_FOR_TARGET)
2129 AC_SUBST(CXX_FOR_TARGET)
2130 AC_SUBST(RAW_CXX_FOR_TARGET)
2131 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2132 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2133
2134 # Fix up target tools.
2135 if test "x${build}" = "x${host}" ; then
2136   # In this case, the newly built tools can and should be used,
2137   # so we override the results of the autoconf tests.
2138   # This should really only happen when the tools are actually being built,
2139   # but that's a further refinement.  The new build scheme, where
2140   # tools are built into a structure paralleling where they're installed,
2141   # should also eliminate all of this cleanly.
2142   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2143   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2144   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2145   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2146   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2147   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2148   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2149 else
2150   # Just use the ones we found.
2151   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2152   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2153   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2154   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2155   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2156   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2157   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2158 fi
2159 AC_SUBST(AR_FOR_TARGET)
2160 AC_SUBST(AS_FOR_TARGET)
2161 AC_SUBST(DLLTOOL_FOR_TARGET)
2162 AC_SUBST(LD_FOR_TARGET)
2163 AC_SUBST(NM_FOR_TARGET)
2164 AC_SUBST(RANLIB_FOR_TARGET)
2165 AC_SUBST(WINDRES_FOR_TARGET)
2166
2167 # Certain tools may need extra flags.
2168 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2169 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2170 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2171
2172 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2173 AC_ARG_ENABLE(maintainer-mode,
2174 [  --enable-maintainer-mode enable make rules and dependencies not useful
2175                           (and sometimes confusing) to the casual installer],
2176       USE_MAINTAINER_MODE=$enableval,
2177       USE_MAINTAINER_MODE=no)
2178 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2179 AC_SUBST(MAINTAINER_MODE_TRUE)
2180 AC_SUBST(MAINTAINER_MODE_FALSE)
2181 if test "$USE_MAINTAINER_MODE" = yes; then
2182   MAINTAINER_MODE_TRUE=
2183   MAINTAINER_MODE_FALSE='#'
2184 else
2185   MAINTAINER_MODE_TRUE='#'
2186   MAINTAINER_MODE_FALSE=
2187 fi
2188 MAINT=$MAINTAINER_MODE_TRUE
2189 AC_SUBST(MAINT)dnl
2190
2191 # ---------------------
2192 # GCC bootstrap support
2193 # ---------------------
2194
2195 # Stage specific cflags for build.
2196 stage1_cflags="-g"
2197 case $build in
2198   vax-*-*)
2199     case ${GCC} in
2200       yes) stage1_cflags="-g -Wa,-J" ;;
2201       *) stage1_cflags="-g -J" ;;
2202     esac ;;
2203   powerpc-*-darwin*)
2204     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2205     # sources; use -no-cpp-precomp to get to GNU cpp.
2206     # Apple's GCC has bugs in designated initializer handling, so disable
2207     # that too.
2208     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2209     ;;
2210 esac
2211 AC_SUBST(stage1_cflags)
2212
2213 # It makes debugging easier if we create as symlinks the stage directories
2214 # gcc for stageN-gcc and stage-prev for stage(N-1).  In case this is not
2215 # possible, however, we can resort to mv.
2216 AC_CACHE_CHECK([if symbolic links between directories work],
2217 [gcc_cv_prog_ln_s_dir],
2218 [if test "${LN_S}" = "ln -s" \
2219    && mkdir confdir.s1 \
2220    && ln -s confdir.s1 confdir.s2 \
2221    && echo timestamp1 > confdir.s1/conftest.1 \
2222    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2223    && echo timestamp2 > confdir.s2/conftest.2 \
2224    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2225    && rm -f confdir.s2; then
2226   gcc_cv_prog_ln_s_dir=yes
2227 else
2228   gcc_cv_prog_ln_s_dir=yes
2229 fi
2230 rm -rf confdir.s1 confdir.s2])
2231
2232 case ${gcc_cv_prog_ln_s_dir} in
2233   yes)
2234     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2235     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2236   *)
2237     CREATE_LINK_TO_DIR='mv $$1 $$2'
2238     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2239 esac
2240 AC_SUBST(CREATE_LINK_TO_DIR)
2241 AC_SUBST(UNDO_LINK_TO_DIR)
2242
2243 # Enable -Werror in bootstrap stage2 and later.
2244 # Change the default to "no" on release branches.
2245 AC_ARG_ENABLE(werror,
2246 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2247 [enable_werror=yes])
2248 case ${enable_werror} in
2249   yes) stage2_werror_flag="--enable-werror-always" ;;
2250   *) stage2_werror_flag="" ;;
2251 esac
2252 AC_SUBST(stage2_werror_flag)
2253
2254 AC_OUTPUT(Makefile)