configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   2 #   1999, 2000, 2001, 2002, 2003 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 AC_INIT(move-if-change)
  22 AC_PREREQ(2.13)
  23 AC_CANONICAL_SYSTEM
  24 AC_ARG_PROGRAM
  25
  26 sinclude(config/acx.m4)
  27
  28 ### we might need to use some other shell than /bin/sh for running subshells
  29 ### If we are on Windows, search for the shell.  This will permit people
  30 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  31 ### without also having to set CONFIG_SHELL.  This code will work when
  32 ### using bash, which sets OSTYPE.
  33 case "${OSTYPE}" in
  34 *win32*)
  35   if test x${CONFIG_SHELL} = x ; then
  36     if test ! -f /bin/sh ; then
  37       if test x${SHELL} != x && test -f ${SHELL} ; then
  38         CONFIG_SHELL=${SHELL}
  39         export CONFIG_SHELL
  40       else
  41         for prog in sh sh.exe bash bash.exe; do
  42           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  43           for dir in $PATH; do
  44             test -z "$dir" && dir=.
  45             if test -f $dir/$prog; then
  46               CONFIG_SHELL=$dir/$prog
  47               export CONFIG_SHELL
  48               break
  49             fi
  50           done
  51           IFS="$save_ifs"
  52           test -n "${CONFIG_SHELL}" && break
  53         done
  54       fi
  55     fi
  56   fi
  57   ;;
  58 esac
  59
  60 config_shell=${CONFIG_SHELL-/bin/sh}
  61
  62 progname=$0
  63 # if PWD already has a value, it is probably wrong.
  64 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  65
  66 # Export original configure arguments for use by sub-configures.
  67 TOPLEVEL_CONFIGURE_ARGUMENTS="$progname $@"
  68 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  69
  70 moveifchange=${srcdir}/move-if-change
  71
  72 # Set srcdir to "." if that's what it is.
  73 # This is important for multilib support.
  74 pwd=`${PWDCMD-pwd}`
  75 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  76 if test "${pwd}" = "${srcpwd}" ; then
  77   srcdir=.
  78 fi
  79
  80 topsrcdir=$srcpwd
  81
  82 extra_host_args=
  83 # Define the trigger file to make sure configure will re-run whenever
  84 # the gcc version number changes.
  85 if test "${with_gcc_version_trigger+set}" = set ; then
  86   gcc_version_trigger="$with_gcc_version_trigger"
  87   gcc_version=`grep version_string ${with_gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
  88 else
  89   # If gcc's sources are available, define the trigger file.
  90   if test -f ${topsrcdir}/gcc/version.c ; then
  91     gcc_version_trigger=${topsrcdir}/gcc/version.c
  92     gcc_version=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
  93     case "$ac_configure_args" in
  94       *--with-gcc-version-trigger=$gcc_version_trigger* )
  95         ;;
  96       * )
  97         # Add to all subconfigure arguments: build, host, and target.
  98         ac_configure_args="$ac_configure_args --with-gcc-version-trigger=$gcc_version_trigger"
  99         ;;
 100     esac
 101   fi
 102 fi
 103
 104 ### To add a new directory to the tree, first choose whether it is a target
 105 ### or a host dependent tool.  Then put it into the appropriate list
 106 ### (library or tools, host or target), doing a dependency sort.
 107
 108 # Subdirs will be configured in the order listed in build_configdirs,
 109 # configdirs, or target_configdirs; see the serialization section below.
 110
 111 # Dependency sorting is only needed when *configuration* must be done in
 112 # a particular order.  In all cases a dependency should be specified in
 113 # the Makefile, whether or not it's implicitly specified here.
 114
 115 # Double entries in build_configdirs, configdirs, or target_configdirs may
 116 # cause circular dependencies and break everything horribly.
 117
 118 # these libraries are used by various programs built for the host environment
 119 #
 120 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl tix libgui zlib"
 121
 122 # these tools are built for the host environment
 123 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 124 # know that we are building the simulator.
 125 # binutils, gas and ld appear in that order because it makes sense to run
 126 # "make check" in that particular order.
 127 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"
 128
 129 # libgcj represents the runtime libraries only used by gcj.
 130 libgcj="target-libffi \
 131         target-boehm-gc \
 132         target-zlib \
 133         target-qthreads \
 134         target-libjava"
 135
 136 # these libraries are built for the target environment, and are built after
 137 # the host libraries and the host tools (which may be a cross compiler)
 138 #
 139 target_libraries="target-libiberty \
 140                 target-libgloss \
 141                 target-newlib \
 142                 target-libstdc++-v3 \
 143                 target-libf2c \
 144                 ${libgcj} \
 145                 target-libobjc"
 146
 147 # these tools are built using the target libraries, and are intended to
 148 # run only in the target environment
 149 #
 150 # note: any program that *uses* libraries that are in the "target_libraries"
 151 # list belongs in this list.  those programs are also very likely
 152 # candidates for the "native_only" list which follows
 153 #
 154 target_tools="target-examples target-groff target-gperf target-rda"
 155
 156 ################################################################################
 157
 158 ## All tools belong in one of the four categories, and are assigned above
 159 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 160 ## is important because configure will choke if they ever get through.
 161 ## ${configdirs} is directories we build using the host tools.
 162 ## ${target_configdirs} is directories we build using the target tools.
 163 #
 164 configdirs=`echo ${host_libs} ${host_tools}`
 165 target_configdirs=`echo ${target_libraries} ${target_tools}`
 166
 167 # Only make build modules if build != host.
 168 # This should be done more generally, but at the moment it doesn't matter.
 169 if test ${host_alias} != ${build_alias} ; then
 170   # This is the only build module.
 171   build_modules=libiberty
 172 else
 173   build_modules=
 174 fi
 175
 176
 177 ################################################################################
 178
 179 srcname="gnu development package"
 180
 181 # This gets set non-empty for some net releases of packages.
 182 appdirs=""
 183
 184 # Define is_cross_compiler to save on calls to 'test'.
 185 is_cross_compiler=
 186 if test x"${host}" = x"${target}" ; then
 187   is_cross_compiler=no
 188 else
 189   is_cross_compiler=yes
 190 fi
 191
 192 # Find the build and target subdirs.
 193 GCC_TOPLEV_SUBDIRS
 194
 195 if test ! -d ${target_subdir} ; then
 196   if mkdir ${target_subdir} ; then true
 197   else
 198     echo "'*** could not make ${PWD=`${PWDCMD-pwd}`}/${target_subdir}" 1>&2
 199     exit 1
 200   fi
 201 fi
 202
 203 if test x"${build_alias}" != x"${host}" ; then
 204   if test ! -d ${build_subdir} ; then
 205     if mkdir ${build_subdir} ; then true
 206     else
 207       echo "'*** could not make ${PWD=`${PWDCMD-pwd}`}/${build_subdir}" 1>&2
 208       exit 1
 209     fi
 210   fi
 211 fi
 212
 213 # Skipdirs are removed silently.
 214 skipdirs=
 215 # Noconfigdirs are removed loudly.
 216 noconfigdirs=""
 217
 218 use_gnu_ld=
 219 # Make sure we don't let GNU ld be added if we didn't want it.
 220 if test x$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 tix 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"${with_libs}" != x ; then
 261   if test x"${with_newlib}" = x ; then
 262     with_newlib=no
 263   fi
 264 fi
 265
 266 # Recognize --with-newlib/--without-newlib.
 267 case ${with_newlib} in
 268   no) skipdirs="${skipdirs} target-newlib" ;;
 269   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 270 esac
 271
 272 # Configure extra directories which are host specific
 273
 274 case "${host}" in
 275   *-cygwin*)
 276     configdirs="$configdirs libtermcap" ;;
 277 esac
 278
 279 # Remove more programs from consideration, based on the host or
 280 # target this usually means that a port of the program doesn't
 281 # exist yet.
 282
 283 case "${host}" in
 284   hppa*64*-*-*)
 285     noconfigdirs="$noconfigdirs byacc"
 286     ;;
 287   i[[3456789]]86-*-vsta)
 288     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl tix gnuserv gettext"
 289     ;;
 290   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 291     noconfigdirs="tcl tk expect dejagnu send-pr uudecode guile itcl tix gnuserv libffi"
 292     ;;
 293   i[[3456789]]86-*-mingw32*)
 294     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl tix gnuserv"
 295     noconfigdirs="expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 296     ;;
 297   i[[3456789]]86-*-beos*)
 298     noconfigdirs="$noconfigdirs tk itcl tix libgui gdb"
 299     ;;
 300   *-*-cygwin*)
 301     noconfigdirs="autoconf automake send-pr rcs guile perl"
 302     ;;
 303   *-*-netbsd*)
 304     noconfigdirs="rcs"
 305     ;;
 306   ppc*-*-pe)
 307     noconfigdirs="patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl tix gnuserv"
 308     ;;
 309   powerpc-*-beos*)
 310     noconfigdirs="$noconfigdirs tk itcl tix libgui gdb dejagnu readline"
 311     ;;
 312   *-*-darwin*)
 313     noconfigdirs="$noconfigdirs tk itcl tix libgui"
 314     ;;
 315 esac
 316
 317 # Save it here so that, even in case of --enable-libgcj, if the Java
 318 # front-end isn't enabled, we still get libgcj disabled.
 319 libgcj_saved=$libgcj
 320 case $enable_libgcj in
 321 yes)
 322   # If we reset it here, it won't get added to noconfigdirs in the
 323   # target-specific build rules, so it will be forcibly enabled
 324   # (unless the Java language itself isn't enabled).
 325   libgcj=
 326   ;;
 327 no)
 328   # Make sure we get it printed in the list of not supported target libs.
 329   noconfigdirs="$noconfigdirs ${libgcj}"
 330   ;;
 331 esac
 332
 333 case "${target}" in
 334   *-*-chorusos)
 335     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 336     ;;
 337   *-*-darwin*)
 338     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 339     noconfigdirs="$noconfigdirs target-libobjc ${libgcj}"
 340     ;;
 341   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 342     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 343     ;;
 344   *-*-kaos*)
 345     # Remove unsupported stuff on all kaOS configurations.
 346     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-libf2c target-librx"
 347     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 348     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 349     noconfigdirs="$noconfigdirs target-libgloss"
 350     ;;
 351   *-*-netbsd*)
 352     # Skip some stuff on all NetBSD configurations.
 353     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 354
 355     # Skip some stuff that's unsupported on some NetBSD configurations.
 356     case "${target}" in
 357       i*86-*-netbsdelf*) ;;
 358       arm*-*-netbsdelf*) ;;
 359       *)
 360         noconfigdirs="$noconfigdirs ${libgcj}"
 361         ;;
 362     esac
 363     ;;
 364   *-*-netware)
 365     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-newlib target-libiberty target-libgloss ${libgcj}"
 366     ;;
 367   *-*-rtems*)
 368     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 369     case ${target} in
 370         h8300*-*-* | h8500-*-*)
 371           noconfigdirs="$noconfigdirs target-libf2c"
 372           ;;
 373         *) ;;
 374     esac
 375     ;;
 376   *-*-vxworks*)
 377     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 378     ;;
 379   alpha*-dec-osf*)
 380     # ld works, but does not support shared libraries.
 381     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 382     # gas doesn't generate exception information.
 383     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 384     ;;
 385   alpha*-*-*vms*)
 386     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 387     ;;
 388   alpha*-*-linux*)
 389     # newlib is not 64 bit ready
 390     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 391     ;;
 392   alpha*-*-freebsd*)
 393     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 394     ;;
 395   alpha*-*-*)
 396     # newlib is not 64 bit ready
 397     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 398     ;;
 399   sh-*-linux*)
 400     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 401     ;;
 402   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 403     noconfigdirs="$noconfigdirs ${libgcj}"
 404     noconfigdirs="$noconfigdirs target-examples"
 405     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 406     noconfigdirs="$noconfigdirs tcl tix tk itcl libgui sim"
 407     noconfigdirs="$noconfigdirs expect dejagnu"
 408     # the C++ libraries don't build on top of CE's C libraries
 409     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 410     noconfigdirs="$noconfigdirs target-newlib"
 411     case "${host}" in
 412       *-*-cygwin*) ;; # keep gdb and readline
 413       *) noconfigdirs="$noconfigdirs gdb readline"
 414          ;;
 415     esac
 416     ;;
 417   arc-*-*)
 418     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 419     ;;
 420   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 421     noconfigdirs="$noconfigdirs ${libgcj}"
 422     ;;
 423   arm-*-elf* | strongarm-*-elf* | xscale-*-elf*)
 424     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 425     ;;
 426   arm-*-pe*)
 427     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 428     ;;
 429   arm-*-oabi*)
 430     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 431     ;;
 432   thumb-*-coff)
 433     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 434     ;;
 435   thumb-*-elf)
 436     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 437     ;;
 438   thumb-*-oabi)
 439     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 440     ;;
 441   thumb-*-pe)
 442     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 443     ;;
 444   arm-*-riscix*)
 445     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 446     ;;
 447   avr-*-*)
 448     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 449     ;;
 450   c4x-*-* | tic4x-*-*)
 451     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 452     ;;
 453   c54x*-*-* | tic54x-*-*)
 454     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 455     ;;
 456   cris-*-*)
 457     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 458     ;;
 459   d10v-*-*)
 460     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 461     ;;
 462   d30v-*-*)
 463     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 464     ;;
 465   fr30-*-elf*)
 466     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 467     ;;
 468   frv-*-*)
 469     noconfigdirs="$noconfigdirs ${libgcj}"
 470     ;;
 471   h8300*-*-*)
 472     noconfigdirs="$noconfigdirs target-libgloss ${libgcj} target-libf2c"
 473     ;;
 474   h8500-*-*)
 475     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} target-libf2c"
 476     ;;
 477   hppa*64*-*-linux* | parisc*64*-*-linux*)
 478     # In this case, it's because the hppa64-linux target is for
 479     # the kernel only at this point and has no libc, and thus no
 480     # headers, crt*.o, etc., all of which are needed by these.
 481     noconfigdirs="$noconfigdirs target-zlib"
 482     ;;
 483   hppa*-*-*elf* | \
 484   parisc*-*-linux* | hppa*-*-linux* | \
 485   hppa*-*-lites* | \
 486   hppa*-*-openbsd* | \
 487   hppa*64*-*-*)
 488     noconfigdirs="$noconfigdirs ${libgcj}"
 489     # Do configure ld/binutils/gas for this case.
 490     ;;
 491   hppa*-*-*)
 492     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 493     # build on HP-UX 10.20.
 494     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 495     ;;
 496   i960-*-*)
 497     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 498     ;;
 499   ia64*-*-elf*)
 500     # No gdb support yet.
 501     noconfigdirs="$noconfigdirs tix readline mmalloc libgui itcl gdb"
 502     ;;
 503   ia64*-**-hpux*)
 504     # No gdb or ld support yet.
 505     noconfigdirs="$noconfigdirs tix readline mmalloc libgui itcl gdb ld"
 506     ;;
 507   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 508     noconfigdirs="$noconfigdirs ${libgcj}"
 509     ;;
 510   i[[3456789]]86-*-freebsd*)
 511     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 512     ;;
 513   i[[3456789]]86-*-linux*)
 514     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 515     # not build java stuff by default.
 516     case "${target}" in
 517       *-*-*libc1*)
 518         noconfigdirs="$noconfigdirs ${libgcj}";;
 519     esac
 520
 521     # This section makes it possible to build newlib natively on linux.
 522     # If we are using a cross compiler then don't configure newlib.
 523     if test x${is_cross_compiler} != xno ; then
 524       noconfigdirs="$noconfigdirs target-newlib"
 525     fi
 526     noconfigdirs="$noconfigdirs target-libgloss"
 527     # If we are not using a cross compiler, do configure newlib.
 528     # Note however, that newlib will only be configured in this situation
 529     # if the --with-newlib option has been given, because otherwise
 530     # 'target-newlib' will appear in skipdirs.
 531     ;;
 532   i[[3456789]]86-*-mingw32*)
 533     target_configdirs="$target_configdirs target-mingw"
 534     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 535
 536     # Can't build gdb for mingw32 if not native.
 537     case "${host}" in
 538       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 539       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix gnuserv"
 540          ;;
 541     esac
 542     ;;
 543   *-*-cygwin*)
 544     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 545     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 546     # always build newlib.
 547     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 548
 549     # Can't build gdb for Cygwin if not native.
 550     case "${host}" in
 551       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 552       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix libgui gnuserv"
 553          ;;
 554     esac
 555     ;;
 556   i[[3456789]]86-*-pe)
 557     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 558     ;;
 559   i[[3456789]]86-*-sco3.2v5*)
 560     # The linker does not yet know about weak symbols in COFF,
 561     # and is not configured to handle mixed ELF and COFF.
 562     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 563     ;;
 564   i[[3456789]]86-*-sco*)
 565     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 566     ;;
 567   i[[3456789]]86-*-solaris2*)
 568     noconfigdirs="$noconfigdirs target-libgloss"
 569     ;;
 570   i[[3456789]]86-*-sysv4*)
 571     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 572     ;;
 573   i[[3456789]]86-*-beos*)
 574     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 575     ;;
 576   m32r-*-*)
 577     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 578     ;;
 579   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 580     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 581     ;;
 582   m68k-*-elf*)
 583     noconfigdirs="$noconfigdirs ${libgcj}"
 584     ;;
 585   m68k-*-coff*)
 586     noconfigdirs="$noconfigdirs ${libgcj}"
 587     ;;
 588   mcore-*-pe*)
 589   # The EPOC C++ environment does not support exceptions or rtti,
 590   # and so building libstdc++-v3 tends not to always work.
 591     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 592     ;;
 593   mmix-*-*)
 594     noconfigdirs="$noconfigdirs ${libgcj} gdb libgloss"
 595     ;;
 596   mn10200-*-*)
 597     noconfigdirs="$noconfigdirs ${libgcj}"
 598     ;;
 599   mn10300-*-*)
 600     noconfigdirs="$noconfigdirs ${libgcj}"
 601     ;;
 602   powerpc-*-aix*)
 603     # copied from rs6000-*-* entry
 604     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 605     ;;
 606   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 607     target_configdirs="$target_configdirs target-winsup"
 608     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl tix gnuserv ${libgcj}"
 609     # always build newlib.
 610     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 611     ;;
 612     # This is temporary until we can link against shared libraries
 613   powerpcle-*-solaris*)
 614     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl tix gnuserv ${libgcj}"
 615     ;;
 616   powerpc-*-beos*)
 617     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 618     ;;
 619   powerpc-*-eabi)
 620     noconfigdirs="$noconfigdirs ${libgcj}"
 621     ;;
 622   rs6000-*-lynxos*)
 623     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 624     ;;
 625   rs6000-*-aix*)
 626     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 627     ;;
 628   rs6000-*-*)
 629     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 630     ;;
 631   m68k-apollo-*)
 632     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 633     ;;
 634   mips*-*-irix5*)
 635     # The GNU linker does not support shared libraries.
 636     noconfigdirs="$noconfigdirs ld gprof target-libgloss ${libgcj}"
 637     ;;
 638   mips*-*-irix6*)
 639     # Linking libjava exceeds command-line length limits on at least
 640     # IRIX 6.2, but not on IRIX 6.5.
 641     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 642     # <oldham@codesourcery.com>
 643     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 644     ;;
 645   mips*-dec-bsd*)
 646     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 647     ;;
 648   mips*-*-bsd*)
 649     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 650     ;;
 651   mipstx39-*-*)
 652     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 653     ;;
 654   mips*-*-linux*)
 655     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 656     ;;
 657   mips*-*-*)
 658     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 659     ;;
 660   romp-*-*)
 661     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 662     ;;
 663   sh-*-*)
 664     case "${host}" in
 665       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 666       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 667       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 668       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 669     esac
 670     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 671     ;;
 672   sh64-*-*)
 673     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 674     ;;
 675   sparc-*-elf*)
 676     noconfigdirs="$noconfigdirs ${libgcj}"
 677     ;;
 678   sparc64-*-elf*)
 679     noconfigdirs="$noconfigdirs ${libgcj}"
 680     ;;
 681   sparclite-*-*)
 682     noconfigdirs="$noconfigdirs ${libgcj}"
 683     ;;
 684   sparc-*-sunos4*)
 685     noconfigdirs="$noconfigdirs ${libgcj}"
 686     if test x${is_cross_compiler} != xno ; then
 687            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 688     else
 689            use_gnu_ld=no
 690     fi
 691     ;;
 692   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 693     ;;
 694   v810-*-*)
 695     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 696     ;;
 697   v850-*-*)
 698     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 699     ;;
 700   v850e-*-*)
 701     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 702     ;;
 703   v850ea-*-*)
 704     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 705     ;;
 706   vax-*-vms)
 707     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 708     ;;
 709   vax-*-*)
 710     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 711     ;;
 712   ip2k-*-*)
 713     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 714     ;;
 715   *-*-linux*)
 716     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 717     ;;
 718   *-*-lynxos*)
 719     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 720     ;;
 721   *-*-*)
 722     noconfigdirs="$noconfigdirs ${libgcj}"
 723     ;;
 724 esac
 725
 726 # If we aren't building newlib, then don't build libgloss, since libgloss
 727 # depends upon some newlib header files.
 728 case "${noconfigdirs}" in
 729   *target-libgloss*) ;;
 730   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 731 esac
 732
 733 # Figure out what language subdirectories are present.
 734 # Look if the user specified --enable-languages="..."; if not, use
 735 # the environment variable $LANGUAGES if defined. $LANGUAGES might
 736 # go away some day.
 737 # NB:  embedded tabs in this IF block -- do not untabify
 738 if test x"${enable_languages+set}" != xset; then
 739   if test x"${LANGUAGES+set}" = xset; then
 740     enable_languages="${LANGUAGES}"
 741       echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
 742   else
 743     enable_languages=all
 744   fi
 745 else
 746   if test x"${enable_languages}" = x ||
 747      test x"${enable_languages}" = xyes;
 748      then
 749     echo configure.in: --enable-languages needs at least one language argument 1>&2
 750     exit 1
 751   fi
 752 fi
 753 enable_languages=`echo "${enable_languages}" | sed -e 's/[[     ,]][[   ,]]*/,/g' -e 's/,$//'`
 754
 755 # First scan to see if an enabled language requires some other language.
 756 # We assume that a given config-lang.in will list all the language
 757 # front ends it requires, even if some are required indirectly.
 758 for lang in ${srcdir}/gcc/*/config-lang.in ..
 759 do
 760   case $lang in
 761     ..) ;;
 762     # The odd quoting in the next line works around
 763     # an apparent bug in bash 1.12 on linux.
 764     ${srcdir}/gcc/[[*]]/config-lang.in) ;;
 765     *)
 766       lang_alias=`sed -n -e 's,^language=[['"'"'"'"]]\(.*\)[["'"'"'"']].*$,\1,p' -e 's,^language=\([[^  ]]*\).*$,\1,p' $lang`
 767       this_lang_requires=`sed -n -e 's,^lang_requires=[['"'"'"'"]]\(.*\)[["'"'"'"']].*$,\1,p' -e 's,^lang_requires=\([[^        ]]*\).*$,\1,p' $lang`
 768       for other in $this_lang_requires
 769       do
 770         case ,${enable_languages}, in
 771           *,$other,*) ;;
 772           *,all,*) ;;
 773           *,$lang_alias,*)
 774             echo " \`$other' language required by \`$lang_alias'; enabling" 1>&2
 775             enable_languages="$enable_languages,$other"
 776             ;;
 777         esac
 778       done
 779       ;;
 780   esac
 781 done
 782
 783 subdirs=
 784 for lang in ${srcdir}/gcc/*/config-lang.in ..
 785 do
 786   case $lang in
 787     ..) ;;
 788     # The odd quoting in the next line works around
 789     # an apparent bug in bash 1.12 on linux.
 790     ${srcdir}/gcc/[[*]]/config-lang.in) ;;
 791     *)
 792       lang_alias=`sed -n -e 's,^language=[['"'"'"'"]]\(.*\)[["'"'"'"']].*$,\1,p' -e 's,^language=\([[^  ]]*\).*$,\1,p' $lang`
 793       this_lang_libs=`sed -n -e 's,^target_libs=[['"'"'"'"]]\(.*\)[["'"'"'"']].*$,\1,p' -e 's,^target_libs=\([[^        ]]*\).*$,\1,p' $lang`
 794       this_lang_dirs=`sed -n -e 's,^lang_dirs=[['"'"'"'"]]\(.*\)[["'"'"'"']].*$,\1,p' -e 's,^lang_dirs=\([[^    ]]*\).*$,\1,p' $lang`
 795       build_by_default=`sed -n -e 's,^build_by_default=[['"'"'"'"]]\(.*\)[["'"'"'"']].*$,\1,p' -e 's,^build_by_default=\([[^    ]]*\).*$,\1,p' $lang`
 796       if test "x$lang_alias" = x
 797          then
 798         echo "$lang doesn't set \$language." 1>&2
 799         exit 1
 800       fi
 801       case ${build_by_default},${enable_languages}, in
 802         *,$lang_alias,*) add_this_lang=yes ;;
 803         no,*) add_this_lang=no ;;
 804         *,all,*) add_this_lang=yes ;;
 805         *) add_this_lang=no ;;
 806       esac
 807       if test x"${add_this_lang}" = xyes; then
 808         :
 809       else
 810         eval noconfigdirs='"$noconfigdirs "'\"$this_lang_libs $this_lang_dirs\"
 811       fi
 812       ;;
 813   esac
 814 done
 815
 816 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
 817 # $target_configdirs.
 818 # If we have the source for $noconfigdirs entries, add them to $notsupp.
 819
 820 notsupp=""
 821 for dir in . $skipdirs $noconfigdirs ; do
 822   dirname=`echo $dir | sed -e s/target-//g`
 823   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 824     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 825     if test -r $srcdir/$dirname/configure ; then
 826       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 827         true
 828       else
 829         notsupp="$notsupp $dir"
 830       fi
 831     fi
 832   fi
 833   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 834     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
 835     if test -r $srcdir/$dirname/configure ; then
 836       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 837         true
 838       else
 839         notsupp="$notsupp $dir"
 840       fi
 841     fi
 842   fi
 843 done
 844
 845 # Sometimes the tools are distributed with libiberty but with no other
 846 # libraries.  In that case, we don't want to build target-libiberty.
 847 if test -n "${target_configdirs}" ; then
 848   others=
 849   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 850     if test "$i" != "libiberty" ; then
 851       if test -r $srcdir/$i/configure ; then
 852         others=yes;
 853         break;
 854       fi
 855     fi
 856   done
 857   if test -z "${others}" ; then
 858     target_configdirs=
 859   fi
 860 fi
 861
 862 # Quietly strip out all directories which aren't configurable in this tree.
 863 # This relies on all configurable subdirectories being autoconfiscated, which
 864 # is now the case.
 865 configdirs_all="$configdirs"
 866 configdirs=
 867 for i in ${configdirs_all} ; do
 868   if test -f ${srcdir}/$i/configure ; then
 869     configdirs="${configdirs} $i"
 870   fi
 871 done
 872 target_configdirs_all="$target_configdirs"
 873 target_configdirs=
 874 for i in ${target_configdirs_all} ; do
 875   j=`echo $i | sed -e s/target-//g`
 876   if test -f ${srcdir}/$j/configure ; then
 877     target_configdirs="${target_configdirs} $i"
 878   fi
 879 done
 880
 881 # Produce a warning message for the subdirs we can't configure.
 882 # This isn't especially interesting in the Cygnus tree, but in the individual
 883 # FSF releases, it's important to let people know when their machine isn't
 884 # supported by the one or two programs in a package.
 885
 886 if test -n "${notsupp}" && test -z "${norecursion}" ; then
 887   # If $appdirs is non-empty, at least one of those directories must still
 888   # be configured, or we error out.  (E.g., if the gas release supports a
 889   # specified target in some subdirs but not the gas subdir, we shouldn't
 890   # pretend that all is well.)
 891   if test -n "$appdirs" ; then
 892     for dir in $appdirs ; do
 893       if test -r $dir/Makefile.in ; then
 894         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 895           appdirs=""
 896           break
 897         fi
 898         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 899           appdirs=""
 900           break
 901         fi
 902       fi
 903     done
 904     if test -n "$appdirs" ; then
 905       echo "*** This configuration is not supported by this package." 1>&2
 906       exit 1
 907     fi
 908   fi
 909   # Okay, some application will build, or we don't care to check.  Still
 910   # notify of subdirs not getting built.
 911   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 912   echo "    ${notsupp}" 1>&2
 913   echo "    (Any other directories should still work fine.)" 1>&2
 914 fi
 915
 916 case "$host" in
 917   *msdosdjgpp*)
 918     enable_gdbtk=no ;;
 919 esac
 920
 921 copy_dirs=
 922
 923 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
 924 # the named directory are copied to $(tooldir)/sys-include.
 925 if test x"${with_headers}" != x ; then
 926   if test x${is_cross_compiler} = xno ; then
 927     echo 1>&2 '***' --with-headers is only supported when cross compiling
 928     exit 1
 929   fi
 930   if test x"${with_headers}" != xyes ; then
 931     case "${exec_prefixoption}" in
 932     "") x=${prefix} ;;
 933     *) x=${exec_prefix} ;;
 934     esac
 935     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
 936   fi
 937 fi
 938
 939 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
 940 # the name directories are copied to $(tooldir)/lib.  Multiple directories
 941 # are permitted.
 942 if test x"${with_libs}" != x ; then
 943   if test x${is_cross_compiler} = xno ; then
 944     echo 1>&2 '***' --with-libs is only supported when cross compiling
 945     exit 1
 946   fi
 947   if test x"${with_libs}" != xyes ; then
 948     # Copy the libraries in reverse order, so that files in the first named
 949     # library override files in subsequent libraries.
 950     case "${exec_prefixoption}" in
 951     "") x=${prefix} ;;
 952     *) x=${exec_prefix} ;;
 953     esac
 954     for l in ${with_libs}; do
 955       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 956     done
 957   fi
 958 fi
 959
 960 # Handle ${copy_dirs}
 961 set fnord ${copy_dirs}
 962 shift
 963 while test $# != 0 ; do
 964   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
 965     :
 966   else
 967     echo Copying $1 to $2
 968
 969     # Use the install script to create the directory and all required
 970     # parent directories.
 971     if test -d $2 ; then
 972       :
 973     else
 974       echo >config.temp
 975       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
 976     fi
 977
 978     # Copy the directory, assuming we have tar.
 979     # FIXME: Should we use B in the second tar?  Not all systems support it.
 980     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 981
 982     # It is the responsibility of the user to correctly adjust all
 983     # symlinks.  If somebody can figure out how to handle them correctly
 984     # here, feel free to add the code.
 985
 986     echo $1 > $2/COPIED
 987   fi
 988   shift; shift
 989 done
 990
 991 # Work in distributions that contain no compiler tools, like Autoconf.
 992 tentative_cc=""
 993 host_makefile_frag=/dev/null
 994 if test -d ${srcdir}/config ; then
 995 case "${host}" in
 996   m68k-hp-hpux*)
 997     # Avoid "too much defining" errors from HPUX compiler.
 998     tentative_cc="cc -Wp,-H256000"
 999     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
1000     # If it's HP/UX ar, this should be harmless.
1001     RANLIB="ar ts"
1002     ;;
1003   m68k-apollo-sysv*)
1004     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
1005     ;;
1006   m68k-apollo-bsd*)
1007     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
1008     # chokes on bfd, the compiler won't let you assign integers to enums, and
1009     # other problems.  Defining CC to gcc is a questionable way to say "don't use
1010     # the apollo compiler" (the preferred version of GCC could be called cc,
1011     # or whatever), but I'm not sure leaving CC as cc is any better...
1012     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
1013     # Used to have BISON=yacc.
1014     tentative_cc=gcc
1015     ;;
1016   m88k-dg-dgux*)
1017     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
1018     ;;
1019   m88k-harris-cxux*)
1020     # Under CX/UX, we want to tell the compiler to use ANSI mode.
1021     tentative_cc="cc -Xa"
1022     host_makefile_frag="config/mh-cxux"
1023     ;;
1024   m88k-motorola-sysv*)
1025     ;;
1026   mips*-dec-ultrix*)
1027     tentative_cc="cc -Wf,-XNg1000"
1028     host_makefile_frag="config/mh-decstation"
1029     ;;
1030   mips*-nec-sysv4*)
1031     # The C compiler on NEC MIPS SVR4 needs bigger tables.
1032     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
1033     host_makefile_frag="config/mh-necv4"
1034     ;;
1035   mips*-sgi-irix4*)
1036     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
1037     # environment.  Also bump switch table size so that cp-parse will
1038     # compile.  Bump string length limit so linker builds.
1039     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
1040     ;;
1041   mips*-*-sysv4*)
1042     host_makefile_frag="config/mh-sysv4"
1043     ;;
1044   mips*-*-sysv*)
1045     # This is for a MIPS running RISC/os 4.52C.
1046
1047     # This is needed for GDB, but needs to be in the top-level make because
1048     # if a library is compiled with the bsd headers and gets linked with the
1049     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
1050     # a different size).
1051     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
1052     # known except to select the sysv environment.  Could we use /proc instead?
1053     # These "sysv environments" and "bsd environments" often end up being a pain.
1054     #
1055     # This is not part of CFLAGS because perhaps not all C compilers have this
1056     # option.
1057     tentative_cc="cc -systype sysv"
1058     ;;
1059   i370-ibm-opened*)
1060     tentative_cc="c89"
1061     ;;
1062   i[[3456789]]86-*-sysv5*)
1063     host_makefile_frag="config/mh-sysv5"
1064     ;;
1065   i[[3456789]]86-*-dgux*)
1066     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
1067     host_makefile_frag="config/mh-dgux386"
1068     ;;
1069   i[[3456789]]86-ncr-sysv4.3*)
1070     # The MetaWare compiler will generate a copyright message unless you
1071     # turn it off by adding the -Hnocopyr flag.
1072     tentative_cc="cc -Hnocopyr"
1073     ;;
1074   i[[3456789]]86-ncr-sysv4*)
1075     # for an NCR 3000 (i486/SVR4) system.
1076     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
1077     # This compiler not only emits obnoxious copyright messages every time
1078     # you run it, but it chokes and dies on a whole bunch of GNU source
1079     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
1080     tentative_cc="/usr/ccs/ATT/cc"
1081     host_makefile_frag="config/mh-ncr3000"
1082     ;;
1083   i[[3456789]]86-*-sco3.2v5*)
1084     ;;
1085   i[[3456789]]86-*-sco*)
1086     # The native C compiler botches some simple uses of const.  Unfortunately,
1087     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
1088     tentative_cc="cc -Dconst="
1089     host_makefile_frag="config/mh-sco"
1090     ;;
1091   i[[3456789]]86-*-udk*)
1092     host_makefile_frag="config/mh-sysv5"
1093     ;;
1094   i[[3456789]]86-*-solaris2*)
1095     host_makefile_frag="config/mh-sysv4"
1096     ;;
1097   i[[3456789]]86-*-msdosdjgpp*)
1098     host_makefile_frag="config/mh-djgpp"
1099     ;;
1100   *-cygwin*)
1101     host_makefile_frag="config/mh-cygwin"
1102     ;;
1103   *-mingw32*)
1104     host_makefile_frag="config/mh-mingw32"
1105     ;;
1106   *-interix*)
1107     host_makefile_frag="config/mh-interix"
1108     ;;
1109   vax-*-ultrix2*)
1110     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
1111     tentative_cc=gcc
1112     ;;
1113   *-*-solaris2*)
1114     host_makefile_frag="config/mh-solaris"
1115     ;;
1116   m68k-sun-sunos*)
1117     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
1118     # without overflowing the jump tables (-J says to use a 32 bit table)
1119     tentative_cc="cc -J"
1120     ;;
1121   *-hp-hpux*)
1122     tentative_cc="cc -Wp,-H256000"
1123     ;;
1124   *-*-hiux*)
1125     tentative_cc="cc -Wp,-H256000"
1126     ;;
1127   rs6000-*-lynxos*)
1128     # /bin/cc is less than useful for our purposes.  Always use GCC
1129     tentative_cc="/usr/cygnus/progressive/bin/gcc"
1130     host_makefile_frag="config/mh-lynxrs6k"
1131     ;;
1132   *-*-lynxos*)
1133     # /bin/cc is less than useful for our purposes.  Always use GCC
1134     tentative_cc="/bin/gcc"
1135     ;;
1136   *-*-sysv4*)
1137     host_makefile_frag="config/mh-sysv4"
1138     ;;
1139 esac
1140 fi
1141
1142 extra_arflags_for_target=
1143 extra_nmflags_for_target=
1144 extra_ranlibflags_for_target=
1145 target_makefile_frag=/dev/null
1146 case "${target}" in
1147   i[[3456789]]86-*-netware*)
1148     target_makefile_frag="config/mt-netware"
1149     ;;
1150   powerpc-*-netware*)
1151     target_makefile_frag="config/mt-netware"
1152     ;;
1153   *-*-linux*)
1154     target_makefile_frag="config/mt-linux"
1155     ;;
1156   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1157     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1158     # commands to handle both 32-bit and 64-bit objects.  These flags are
1159     # harmless if we're using GNU nm or ar.
1160     extra_arflags_for_target=" -X32_64"
1161     extra_nmflags_for_target=" -B -X32_64"
1162     ;;
1163   *-*-darwin*)
1164     # ranlib from Darwin requires the -c flag to look at common symbols.
1165     extra_ranlibflags_for_target=" -c"
1166     ;;
1167   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1168     target_makefile_frag="config/mt-wince"
1169     ;;
1170 esac
1171
1172 alphaieee_frag=/dev/null
1173 case $target in
1174   alpha*-*-*)
1175     # This just makes sure to use the -mieee option to build target libs.
1176     # This should probably be set individually by each library.
1177     alphaieee_frag="config/mt-alphaieee"
1178     ;;
1179 esac
1180
1181 # If --enable-target-optspace always use -Os instead of -O2 to build
1182 # the target libraries, similarly if it is not specified, use -Os
1183 # on selected platforms.
1184 ospace_frag=/dev/null
1185 case "${enable_target_optspace}:${target}" in
1186   yes:*)
1187     ospace_frag="config/mt-ospace"
1188     ;;
1189   :d30v-*)
1190     ospace_frag="config/mt-d30v"
1191     ;;
1192   :m32r-* | :d10v-* | :fr30-*)
1193     ospace_frag="config/mt-ospace"
1194     ;;
1195   no:* | :*)
1196     ;;
1197   *)
1198     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1199     ;;
1200 esac
1201
1202 # Set with_gnu_as and with_gnu_ld as appropriate.
1203 #
1204 # This is done by determining whether or not the appropriate directory
1205 # is available, and by checking whether or not specific configurations
1206 # have requested that this magic not happen.
1207 #
1208 # The command line options always override the explicit settings in
1209 # configure.in, and the settings in configure.in override this magic.
1210 #
1211 # If the default for a toolchain is to use GNU as and ld, and you don't
1212 # want to do that, then you should use the --without-gnu-as and
1213 # --without-gnu-ld options for the configure script.
1214
1215 if test x${use_gnu_as} = x &&
1216    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1217   with_gnu_as=yes
1218   extra_host_args="$extra_host_args --with-gnu-as"
1219 fi
1220
1221 if test x${use_gnu_ld} = x &&
1222    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1223   with_gnu_ld=yes
1224   extra_host_args="$extra_host_args --with-gnu-ld"
1225 fi
1226
1227 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1228 # can detect this case.
1229
1230 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1231   with_newlib=yes
1232   extra_host_args="$extra_host_args --with-newlib"
1233 fi
1234
1235
1236 # Default to using --with-stabs for certain targets.
1237 if test x${with_stabs} = x ; then
1238   case "${target}" in
1239   mips*-*-irix6*)
1240     ;;
1241   mips*-*-* | alpha*-*-osf*)
1242     with_stabs=yes;
1243     extra_host_args="${extra_host_args} --with-stabs"
1244     ;;
1245   esac
1246 fi
1247
1248 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1249 # them automatically.
1250 case "${host}" in
1251   hppa*64*-*-hpux11*)
1252     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1253     ;;
1254 esac
1255
1256 # If we aren't going to be using gcc, see if we can extract a definition
1257 # of CC from the fragment.
1258 # Actually, use the 'pre-extracted' version above.
1259 if test -z "${CC}" && test "${build}" = "${host}" ; then
1260   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1261   found=
1262   for dir in $PATH; do
1263     test -z "$dir" && dir=.
1264     if test -f $dir/gcc; then
1265       found=yes
1266       break
1267     fi
1268   done
1269   IFS="$save_ifs"
1270   if test -z "${found}" && test -n "${tentative_cc}" ; then
1271     CC=$tentative_cc
1272   fi
1273 fi
1274
1275 # Some systems (e.g., one of the i386-aix systems the gas testers are
1276 # using) don't handle "\$" correctly, so don't use it here.
1277 tooldir='${exec_prefix}'/${target_alias}
1278 build_tooldir=${tooldir}
1279
1280 # Generate a default definition for YACC.  This is used if the makefile can't
1281 # locate bison or byacc in objdir.
1282
1283 for prog in 'bison -y' byacc yacc
1284 do
1285   set dummy $prog; tmp=$2
1286   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1287   for dir in $PATH; do
1288     test -z "$dir" && dir=.
1289     if test -f $dir/$tmp; then
1290       DEFAULT_YACC="$prog"
1291       break
1292     fi
1293   done
1294   IFS="$save_ifs"
1295
1296   test -n "$DEFAULT_YACC" && break
1297 done
1298
1299 # Generate a default definition for M4.  This is used if the makefile can't
1300 # locate m4 in objdir.
1301
1302 for prog in gm4 gnum4 m4
1303 do
1304   set dummy $prog; tmp=$2
1305   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1306   for dir in $PATH; do
1307     test -z "$dir" && dir=.
1308     if test -f $dir/$tmp; then
1309       DEFAULT_M4="$prog"
1310       break
1311     fi
1312   done
1313   IFS="$save_ifs"
1314
1315   test -n "$DEFAULT_M4" && break
1316 done
1317
1318 # Generate a default definition for LEX.  This is used if the makefile can't
1319 # locate flex in objdir.
1320
1321 for prog in flex lex
1322 do
1323   set dummy $prog; tmp=$2
1324   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1325   for dir in $PATH; do
1326     test -z "$dir" && dir=.
1327     if test -f $dir/$tmp; then
1328       DEFAULT_LEX="$prog"
1329       break
1330     fi
1331   done
1332   IFS="$save_ifs"
1333
1334   test -n "$DEFAULT_LEX" && break
1335 done
1336
1337 if test "${build}" != "${host}" ; then
1338   # If we are doing a Canadian Cross, in which the host and build systems
1339   # are not the same, we set reasonable default values for the tools.
1340
1341   BISON=${BISON-bison}
1342   CC=${CC-${host_alias}-gcc}
1343   CFLAGS=${CFLAGS-"-g -O2"}
1344   CXX=${CXX-${host_alias}-c++}
1345   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1346   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1347   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
1348   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
1349   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
1350   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
1351   BUILD_PREFIX=${build_alias}-
1352   BUILD_PREFIX_1=${build_alias}-
1353   MAKEINFO=${MAKEINFO-makeinfo}
1354
1355   if test -z "${YACC}" ; then
1356     IFS="${IFS=         }"; save_ifs="$IFS"; IFS="${IFS}:"
1357     for dir in $PATH; do
1358       test -z "$dir" && dir=.
1359       if test -f $dir/bison; then
1360         YACC="bison -y"
1361         break
1362       fi
1363       if test -f $dir/byacc; then
1364         YACC=byacc
1365         break
1366       fi
1367       if test -f $dir/yacc; then
1368         YACC=yacc
1369         break
1370       fi
1371     done
1372     IFS="$save_ifs"
1373     if test -z "${YACC}" ; then
1374       YACC="bison -y"
1375     fi
1376   fi
1377
1378   if test -z "${LEX}" ; then
1379     IFS="${IFS=         }"; save_ifs="$IFS"; IFS="${IFS}:"
1380     for dir in $PATH; do
1381       test -z "$dir" && dir=.
1382       if test -f $dir/flex; then
1383         LEX=flex
1384         break
1385       fi
1386       if test -f $dir/lex; then
1387         LEX=lex
1388         break
1389       fi
1390     done
1391     IFS="$save_ifs"
1392     LEX=${LEX-flex}
1393   fi
1394
1395 else
1396   # Set reasonable default values for some tools even if not Canadian.
1397   # Of course, these are different reasonable default values, originally
1398   # specified directly in the Makefile.
1399   # We don't export, so that autoconf can do its job.
1400   # Note that all these settings are above the fragment inclusion point
1401   # in Makefile.in, so can still be overridden by fragments.
1402   # This is all going to change when we autoconfiscate...
1403
1404   BISON="\$(USUAL_BISON)"
1405   CC_FOR_BUILD="\$(CC)"
1406   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
1407   BUILD_PREFIX=
1408   BUILD_PREFIX_1=loser-
1409   MAKEINFO="\$(USUAL_MAKEINFO)"
1410   LEX="\$(USUAL_LEX)"
1411   YACC="\$(USUAL_YACC)"
1412
1413   # If CC is still not set, try to get gcc.
1414   cc_prog_is_gcc=
1415   if test -z "${CC}" ; then
1416     IFS="${IFS=         }"; save_ifs="$IFS"; IFS="${IFS}:"
1417     for dir in $PATH; do
1418       test -z "$dir" && dir=.
1419       if test -f $dir/gcc; then
1420         CC="gcc"
1421         cc_prog_is_gcc=yes
1422         echo 'void f(){}' > conftest.c
1423         if test -z "`${CC} -g -c conftest.c 2>&1`"; then
1424           CFLAGS=${CFLAGS-"-g -O2"}
1425           CXXFLAGS=${CXXFLAGS-"-g -O2"}
1426         else
1427           CFLAGS=${CFLAGS-"-O2"}
1428           CXXFLAGS=${CXXFLAGS-"-O2"}
1429         fi
1430         rm -f conftest*
1431         break
1432       fi
1433     done
1434     IFS="$save_ifs"
1435     CC=${CC-cc}
1436   else
1437     # Determine if we are using gcc.
1438     cat > conftest.c <<EOF
1439 #ifdef __GNUC__
1440   yes;
1441 #endif
1442 EOF
1443     if ${CC} -E conftest.c | grep yes >/dev/null 2>&1; then
1444       cc_prog_is_gcc=yes
1445     fi
1446     rm -f conftest.c
1447     if test -z "${CFLAGS}"; then
1448       # Here CC is set but CFLAGS is not.  Use a quick hack to use -O2 if CC
1449       # is set to a version of gcc.
1450       if test "$cc_prog_is_gcc" = yes; then
1451         echo 'void f(){}' > conftest.c
1452         if test -z "`${CC} -g -c conftest.c 2>&1`"; then
1453           CFLAGS=${CFLAGS-"-g -O2"}
1454           CXXFLAGS=${CXXFLAGS-"-g -O2"}
1455         else
1456           CFLAGS=${CFLAGS-"-O2"}
1457           CXXFLAGS=${CXXFLAGS-"-O2"}
1458         fi
1459         rm -f conftest*
1460       fi
1461     fi
1462   fi
1463
1464   # We must set the default linker to the linker used by gcc for the correct
1465   # operation of libtool.  If LD is not defined and we are using gcc, try to
1466   # set the LD default to the ld used by gcc.
1467   if test -z "$LD"; then
1468     if test "$cc_prog_is_gcc" = yes; then
1469       case $build in
1470       *-*-mingw*)
1471         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1472       *)
1473         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1474       esac
1475       case $gcc_prog_ld in
1476       # Accept absolute paths.
1477       [[\\/]* | [A-Za-z]:[\\/]*)]
1478         LD="$gcc_prog_ld" ;;
1479       esac
1480     fi
1481   fi
1482
1483   CXX=${CXX-"c++"}
1484   CFLAGS=${CFLAGS-"-g"}
1485   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1486 fi
1487
1488 # FIXME Should this be done recursively ??? (Useful for e.g. gdbtest)
1489 # Set up the list of links to be made.
1490 # ${links} is the list of link names, and ${files} is the list of names to link to.
1491
1492 # Make the links.
1493 configlinks="${links}"
1494 if test -r ./config.status  ; then
1495   mv -f ./config.status ./config.back
1496 fi
1497 while test -n "${files}" ; do
1498   # set file to car of files, files to cdr of files
1499   set ${files}; file=$1; shift; files=$*
1500   set ${links}; link=$1; shift; links=$*
1501
1502   if test ! -r ${srcdir}/${file} ; then
1503     if test ! -r ${file} ; then
1504       echo '***' "${progname}: cannot create a link \"${link}\"," 1>&2
1505       echo '***' "since the file \"${srcdir}/${file}\" does not exist." 1>&2
1506       exit 1
1507     else
1508       srcfile=${file}
1509     fi
1510   else
1511     srcfile=${srcdir}/${file}
1512   fi
1513
1514   ${remove} -f ${link}
1515   # Make a symlink if possible, otherwise try a hard link
1516   if ${symbolic_link} ${srcfile} ${link} >/dev/null 2>&1 ; then
1517     true
1518   else
1519     # We need to re-remove the file because Lynx leaves a
1520     # very strange directory there when it fails an NFS symlink.
1521     ${remove} -r -f ${link}
1522     ${hard_link} ${srcfile} ${link}
1523   fi
1524   if test ! -r ${link} ; then
1525     echo '***' "${progname}: unable to link \"${link}\" to \"${srcfile}\"." 1>&2
1526     exit 1
1527   fi
1528
1529   echo "Linked \"${link}\" to \"${srcfile}\"."
1530 done
1531
1532 # Create a .gdbinit file which runs the one in srcdir
1533 # and tells GDB to look there for source files.
1534
1535 if test -r ${srcdir}/.gdbinit ; then
1536   case ${srcdir} in
1537     .) ;;
1538     *) cat > ./.gdbinit <<EOF
1539 # ${NO_EDIT}
1540 dir ${srcdir}
1541 dir .
1542 source ${srcdir}/.gdbinit
1543 EOF
1544     ;;
1545   esac
1546 fi
1547
1548 # Make sure that the compiler is able to generate an executable.  If it
1549 # can't, we are probably in trouble.  We don't care whether we can run the
1550 # executable--we might be using a cross compiler--we only care whether it
1551 # can be created.  At this point the main configure script has set CC.
1552 we_are_ok=no
1553 echo "int main () { return 0; }" > conftest.c
1554 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1555 if test $? = 0 ; then
1556   if test -s conftest || test -s conftest.exe ; then
1557     we_are_ok=yes
1558   fi
1559 fi
1560 case $we_are_ok in
1561   no)
1562     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1563     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1564     rm -f conftest*
1565     exit 1
1566     ;;
1567 esac
1568 rm -f conftest*
1569
1570 # The Solaris /usr/ucb/cc compiler does not appear to work.
1571 case "${host}" in
1572   sparc-sun-solaris2*)
1573       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1574       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1575           could_use=
1576           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1577           if test -d /opt/cygnus/bin ; then
1578               if test "$could_use" = "" ; then
1579                   could_use="/opt/cygnus/bin"
1580               else
1581                   could_use="$could_use or /opt/cygnus/bin"
1582               fi
1583           fi
1584         if test "$could_use" = "" ; then
1585             echo "Warning: compilation may fail because you're using"
1586             echo "/usr/ucb/cc.  You should change your PATH or CC "
1587             echo "variable and rerun configure."
1588         else
1589             echo "Warning: compilation may fail because you're using"
1590             echo "/usr/ucb/cc, when you should use the C compiler from"
1591             echo "$could_use.  You should change your"
1592             echo "PATH or CC variable and rerun configure."
1593         fi
1594       fi
1595   ;;
1596 esac
1597
1598 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1599 # binutils tools will find libbfd.so.
1600 case "${enable_shared}" in
1601   no | "") SET_LIB_PATH= ;;
1602   *) SET_LIB_PATH="\$(REALLY_SET_LIB_PATH)" ;;
1603 esac
1604
1605 case "${host}" in
1606   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1607   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1608 esac
1609
1610 # Record target_configdirs and the configure arguments for target and
1611 # build configuration in Makefile.
1612 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1613
1614 # This is the final value for target_configdirs.  configdirs already
1615 # has its final value, as does build_modules.  It's time to create some
1616 # lists of valid targets.
1617
1618 all_build_modules=
1619 configure_build_modules=
1620 for module in ${build_modules} ; do
1621   all_build_modules=all-build-${module}
1622   configure_build_modules=configure-build-${module}
1623 done
1624
1625 # Determine whether gdb needs tk/tcl or not.
1626 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1627 # and in that case we want gdb to be built without tk.  Ugh!
1628 # In fact I believe gdb is the *only* package directly dependent on tk,
1629 # so we should be able to put the 'maybe's in unconditionally and
1630 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1631 # 100% sure that that's safe though.
1632
1633 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-tix maybe-all-libgui"
1634 case "$enable_gdbtk" in
1635   no)
1636     GDB_TK="" ;;
1637   yes)
1638     GDB_TK="${gdb_tk}" ;;
1639   *)
1640     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1641     # distro.  Eventually someone will fix this and move Insight, nee
1642     # gdbtk to a separate directory.
1643     if test -d ${srcdir}/gdb/gdbtk ; then
1644       GDB_TK="${gdb_tk}"
1645     else
1646       GDB_TK=""
1647     fi
1648     ;;
1649 esac
1650
1651 # Create the 'maybe dependencies'.  This uses a temporary file.
1652
1653 # While at that, we remove Makefiles if we were started for recursive
1654 # configuration, so that the top-level Makefile reconfigures them,
1655 # like we used to do when configure itself was recursive.
1656 rm -f maybedep.tmp
1657 echo '# maybedep.tmp' > maybedep.tmp
1658
1659 # Make-targets which may need maybe dependencies.
1660 mts="configure all install check clean distclean dvi info install-info"
1661 mts="${mts} installcheck mostlyclean maintainer-clean TAGS"
1662
1663 # Loop over modules and make-targets.
1664 for module in ${build_modules} ; do
1665   if test -z "${no_recursion}" \
1666      && test -f ${build_subdir}/${module}/Makefile; then
1667     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1668     rm -f ${build_subdir}/${module}/Makefile
1669   fi
1670   for mt in ${mts} ; do
1671     case ${mt} in
1672       install) ;; # No installing build modules.
1673       *) echo "maybe-${mt}-build-${module}: ${mt}-build-${module}" >> maybedep.tmp ;;
1674     esac
1675   done
1676 done
1677 for module in ${configdirs} ; do
1678   if test -z "${no_recursion}" \
1679      && test -f ${module}/Makefile; then
1680     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1681     rm -f ${module}/Makefile
1682   fi
1683   for mt in ${mts} ; do
1684     echo "maybe-${mt}-${module}: ${mt}-${module}" >> maybedep.tmp
1685   done
1686 done
1687 for module in ${target_configdirs} ; do
1688   if test -z "${no_recursion}" \
1689      && test -f ${target_subdir}/${module}/Makefile; then
1690     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1691     rm -f ${target_subdir}/${module}/Makefile
1692   fi
1693   for mt in ${mts} ; do
1694     echo "maybe-${mt}-target-${module}: ${mt}-target-${module}" >> maybedep.tmp
1695   done
1696 done
1697 maybe_dependencies=maybedep.tmp
1698 AC_SUBST_FILE(maybe_dependencies)
1699
1700 # Create the serialization dependencies.  This uses a temporary file.
1701
1702 AC_ARG_ENABLE([serial-configure],
1703 [  --enable-serial-[{host,target,build}-]configure
1704                           Force sequential configuration of
1705                           sub-packages for the host, target or build
1706                           machine, or all sub-packages])
1707
1708 case ${enable_serial_configure} in
1709   yes)
1710     enable_serial_build_configure=yes
1711     enable_serial_host_configure=yes
1712     enable_serial_target_configure=yes
1713     ;;
1714 esac
1715
1716 # These force 'configure's to be done one at a time, to avoid problems
1717 # with contention over a shared config.cache.
1718 rm -f serdep.tmp
1719 echo '# serdep.tmp' > serdep.tmp
1720 olditem=
1721 test "x${enable_serial_build_configure}" = xyes &&
1722 for item in ${build_configdirs} ; do
1723   case ${olditem} in
1724     "") ;;
1725     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1726   esac
1727   olditem=${item}
1728 done
1729 olditem=
1730 test "x${enable_serial_host_configure}" = xyes &&
1731 for item in ${configdirs} ; do
1732   case ${olditem} in
1733     "") ;;
1734     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1735   esac
1736   olditem=${item}
1737 done
1738 olditem=
1739 test "x${enable_serial_target_configure}" = xyes &&
1740 for item in ${target_configdirs} ; do
1741   case ${olditem} in
1742     "") ;;
1743     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1744   esac
1745   olditem=${item}
1746 done
1747 serialization_dependencies=serdep.tmp
1748 AC_SUBST_FILE(serialization_dependencies)
1749
1750 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1751 # target and nonopt.  These are the ones we might not want to pass
1752 # down to subconfigures.
1753 baseargs=`echo " ${ac_configure_args} " | \
1754         sed -e 's/ --no[[^ ]]* / /' \
1755             -e 's/ --c[[a-z-]]*[[= ]][[^ ]]* / /' \
1756             -e 's/ --sr[[a-z-]]*[[= ]][[^ ]]* / /' \
1757             -e 's/ --ho[[a-z-]]*[[= ]][[^ ]]* / /' \
1758             -e 's/ --bu[[a-z-]]*[[= ]][[^ ]]* / /' \
1759             -e 's/ --t[[a-z-]]*[[= ]][[^ ]]* / /' \
1760             -e 's/ -cache-file[[= ]][[^ ]]* / /' \
1761             -e 's/ -srcdir[[= ]][[^ ]]* / /' \
1762             -e 's/ -host[[= ]][[^ ]]* / /' \
1763             -e 's/ -build[[= ]][[^ ]]* / /' \
1764             -e 's/ -target[[= ]][[^ ]]* / /' \
1765             -e "s/ [[^' -][^ ]*] / /" \
1766             -e 's/^ *//;s/ *$//'`
1767
1768 # For the build-side libraries, we just need to pretend we're native,
1769 # and not use the same cache file.  Multilibs are neither needed nor
1770 # desired.
1771 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} ${baseargs}"
1772
1773 # For host modules, accept cache file option, or specification as blank.
1774 case "${cache_file}" in
1775 "") # empty
1776   cache_file_option="" ;;
1777 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1778   cache_file_option="--cache-file=${cache_file}" ;;
1779 *) # relative path
1780   cache_file_option="--cache-file=../${cache_file}" ;;
1781 esac
1782
1783 host_configargs="${cache_file_option} --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1784
1785 target_configargs=${baseargs}
1786
1787 # Passing a --with-cross-host argument lets the target libraries know
1788 # whether they are being built with a cross-compiler or being built
1789 # native.  However, it would be better to use other mechanisms to make the
1790 # sorts of decisions they want to make on this basis.  Please consider
1791 # this option to be deprecated.  FIXME.
1792 if test x${is_cross_compiler} = xyes ; then
1793   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1794 fi
1795
1796 # Default to --enable-multilib.
1797 if test x${enable_multilib} = x ; then
1798   target_configargs="--enable-multilib ${target_configargs}"
1799 fi
1800
1801 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1802 # changed from the earlier setting of with_newlib.
1803 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1804   target_configargs="--with-newlib ${target_configargs}"
1805 fi
1806
1807 # Pass the appropriate --host, --build, and --cache-file arguments.
1808 target_configargs="--cache-file=../config.cache --host=${target_alias} --build=${build_alias} ${target_configargs}"
1809
1810 # provide a proper gxx_include_dir.
1811 # Note, if you change the default, make sure to fix both here and in
1812 # the gcc and libstdc++-v3 subdirectories.
1813 # Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
1814 case "${with_gxx_include_dir}" in
1815   yes)
1816     AC_MSG_ERROR([--with-gxx-include-dir=[[dir]] requires a directory])
1817     ;;
1818   no | "")
1819     case "${enable_version_specific_runtime_libs}" in
1820       yes) gxx_include_dir='${libsubdir}/include/c++' ;;
1821       *)
1822         . ${srcdir}/config.if
1823         gxx_include_dir='${prefix}/include/'${libstdcxx_incdir} ;;
1824     esac ;;
1825   *) gxx_include_dir=${with_gxx_include_dir} ;;
1826 esac
1827
1828 FLAGS_FOR_TARGET=
1829 case " $target_configdirs " in
1830  *" newlib "*)
1831   case " $target_configargs " in
1832   *" --with-newlib "*)
1833    case "$target" in
1834    *-cygwin*)
1835      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' ;;
1836    esac
1837
1838    # If we're not building GCC, don't discard standard headers.
1839    if test -d ${srcdir}/gcc; then
1840      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1841
1842      if test "${build}" != "${host}"; then
1843        # On Canadian crosses, CC_FOR_TARGET will have already been set
1844        # by `configure', so we won't have an opportunity to add -Bgcc/
1845        # to it.  This is right: we don't want to search that directory
1846        # for binaries, but we want the header files in there, so add
1847        # them explicitly.
1848        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
1849
1850        # Someone might think of using the pre-installed headers on
1851        # Canadian crosses, in case the installed compiler is not fully
1852        # compatible with the compiler being built.  In this case, it
1853        # would be better to flag an error than risking having
1854        # incompatible object files being constructed.  We can't
1855        # guarantee that an error will be flagged, but let's hope the
1856        # compiler will do it, when presented with incompatible header
1857        # files.
1858      fi
1859    fi
1860
1861    case "${target}-${is_cross_compiler}" in
1862    i[[3456789]]86-*-linux*-no)
1863       # Here host == target, so we don't need to build gcc,
1864       # so we don't want to discard standard headers.
1865       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
1866       ;;
1867    *)
1868       # If we're building newlib, use its generic headers last, but search
1869       # for any libc-related directories first (so make it the last -B
1870       # switch).
1871       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1872       ;;
1873    esac
1874    ;;
1875   esac
1876   ;;
1877 esac
1878
1879 # On Canadian crosses, we'll be searching the right directories for
1880 # the previously-installed cross compiler, so don't bother to add
1881 # flags for directories within the install tree of the compiler
1882 # being built; programs in there won't even run.
1883 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
1884   # Search for pre-installed headers if nothing else fits.
1885   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
1886 fi
1887
1888 if test "x${use_gnu_ld}" = x &&
1889    echo " ${configdirs} " | grep " ld " > /dev/null ; then
1890   # Arrange for us to find uninstalled linker scripts.
1891   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
1892 fi
1893
1894 if test "x${CC_FOR_TARGET+set}" = xset; then
1895   :
1896 elif test -d ${srcdir}/gcc; then
1897   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
1898 elif test "$host" = "$target"; then
1899   CC_FOR_TARGET='$(CC)'
1900 else
1901   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
1902 fi
1903 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
1904
1905 if test "x${GCJ_FOR_TARGET+set}" = xset; then
1906   :
1907 elif test -d ${srcdir}/gcc; then
1908   GCJ_FOR_TARGET='$$r/gcc/gcj -B$$r/gcc/'
1909 elif test "$host" = "$target"; then
1910   GCJ_FOR_TARGET='gcj'
1911 else
1912   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
1913 fi
1914 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
1915
1916 # Don't use libstdc++-v3's flags to configure/build itself.
1917 libstdcxx_flags='`test ! -f $$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
1918 raw_libstdcxx_flags=' -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
1919
1920 if test "x${CXX_FOR_TARGET+set}" = xset; then
1921   :
1922 elif test -d ${srcdir}/gcc; then
1923   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
1924   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
1925   # default whereas gcc does not.
1926   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
1927   # all other cases.
1928   CXX_FOR_TARGET='$$r/gcc/g++ -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
1929   RAW_CXX_FOR_TARGET='$$r/gcc/xgcc -shared-libgcc -B$$r/gcc/ -nostdinc++ '$raw_libstdcxx_flags
1930 elif test "$host" = "$target"; then
1931   CXX_FOR_TARGET='$(CXX)'
1932   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
1933 else
1934   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
1935   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
1936 fi
1937 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
1938 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
1939
1940 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
1941 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
1942
1943 # We want to defer the evaluation of `cmd`s and shell variables in
1944 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
1945 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
1946 # quotes, but we still have to duplicate `$'s so that shell variables
1947 # can be expanded by the nested make as shell variables, not as make
1948 # macros.
1949 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
1950 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
1951
1952 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
1953 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
1954 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
1955 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
1956 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
1957 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
1958 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
1959
1960 # Makefile fragments.
1961 host_makefile_frag=${srcdir}/${host_makefile_frag}
1962 target_makefile_frag=${srcdir}/${target_makefile_frag}
1963 alphaieee_frag=${srcdir}/${alphaieee_frag}
1964 ospace_frag=${srcdir}/${ospace_frag}
1965 AC_SUBST_FILE(host_makefile_frag)
1966 AC_SUBST_FILE(target_makefile_frag)
1967 AC_SUBST_FILE(alphaieee_frag)
1968 AC_SUBST_FILE(ospace_frag)
1969
1970 # Miscellanea: directories, flags, etc.
1971 AC_SUBST(SET_LIB_PATH)
1972 AC_SUBST(RPATH_ENVVAR)
1973 AC_SUBST(BUILD_PREFIX)
1974 AC_SUBST(BUILD_PREFIX_1)
1975 AC_SUBST(configlinks)
1976 AC_SUBST(gcc_version_trigger)
1977 AC_SUBST(gcc_version)
1978 AC_SUBST(tooldir)
1979 AC_SUBST(build_tooldir)
1980 AC_SUBST(GDB_TK)
1981 AC_SUBST(gxx_include_dir)
1982 AC_SUBST(libstdcxx_incdir)
1983
1984 # Build module lists & subconfigure args.
1985 AC_SUBST(build_configargs)
1986 AC_SUBST(configure_build_modules)
1987 AC_SUBST(all_build_modules)
1988
1989 # Host module lists & subconfigure args.
1990 AC_SUBST(host_configargs)
1991 AC_SUBST(configdirs)
1992
1993 # Target module lists & subconfigure args.
1994 AC_SUBST(target_configargs)
1995 AC_SUBST(target_configdirs)
1996
1997 # Build tools.
1998 AC_SUBST(BISON)
1999 AC_SUBST(CC_FOR_BUILD)
2000 AC_SUBST(LEX)
2001 AC_SUBST(MAKEINFO)
2002 AC_SUBST(YACC)
2003 AC_SUBST(config_shell)
2004
2005 # Host tools.
2006 NCN_STRICT_CHECK_TOOL(AR, ar)
2007 NCN_STRICT_CHECK_TOOL(AS, as)
2008 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2009 NCN_STRICT_CHECK_TOOL(LD, ld)
2010 NCN_STRICT_CHECK_TOOL(NM, nm)
2011 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2012 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2013 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2014 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2015 AC_SUBST(CC)
2016 AC_SUBST(CXX)
2017 AC_SUBST(CFLAGS)
2018 AC_SUBST(CXXFLAGS)
2019 AC_SUBST(DEFAULT_YACC)
2020 AC_SUBST(DEFAULT_LEX)
2021 AC_SUBST(DEFAULT_M4)
2022
2023 # Target tools.
2024 NCN_STRICT_CHECK_TARGET_TOOL(AR_FOR_TARGET, ar)
2025 NCN_STRICT_CHECK_TARGET_TOOL(AS_FOR_TARGET, as)
2026 NCN_STRICT_CHECK_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2027 NCN_STRICT_CHECK_TARGET_TOOL(LD_FOR_TARGET, ld)
2028 NCN_STRICT_CHECK_TARGET_TOOL(NM_FOR_TARGET, nm)
2029 NCN_STRICT_CHECK_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2030 NCN_STRICT_CHECK_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2031
2032 AC_SUBST(GCC_FOR_TARGET)
2033 AC_SUBST(FLAGS_FOR_TARGET)
2034 AC_SUBST(CC_FOR_TARGET)
2035 AC_SUBST(GCJ_FOR_TARGET)
2036 AC_SUBST(CXX_FOR_TARGET)
2037 AC_SUBST(RAW_CXX_FOR_TARGET)
2038 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2039 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2040
2041 # Fix up target tools.
2042 if test "x${build}" = "x${host}" ; then
2043   # In this case, the newly built tools can and should be used,
2044   # so we override the results of the autoconf tests.
2045   # This should really only happen when the tools are actually being built,
2046   # but that's a further refinement.  The new build scheme, where
2047   # tools are built into a structure paralleling where they're installed,
2048   # should also eliminate all of this cleanly.
2049   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2050   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2051   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2052   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2053   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2054   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2055   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2056 fi
2057 # Certain tools may need extra flags.
2058 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2059 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2060 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2061
2062 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2063 AC_ARG_ENABLE(maintainer-mode,
2064 [  --enable-maintainer-mode enable make rules and dependencies not useful
2065                           (and sometimes confusing) to the casual installer],
2066       USE_MAINTAINER_MODE=$enableval,
2067       USE_MAINTAINER_MODE=no)
2068 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2069 AC_SUBST(MAINTAINER_MODE_TRUE)
2070 AC_SUBST(MAINTAINER_MODE_FALSE)
2071 if test "$USE_MAINTAINER_MODE" = yes; then
2072   MAINTAINER_MODE_TRUE=
2073   MAINTAINER_MODE_FALSE='#'
2074 else
2075   MAINTAINER_MODE_TRUE='#'
2076   MAINTAINER_MODE_FALSE=
2077 fi
2078 MAINT=$MAINTAINER_MODE_TRUE
2079 AC_SUBST(MAINT)dnl
2080
2081 AC_OUTPUT(Makefile)