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 AC_INIT(move-if-change)
  22 AC_PREREQ(2.13)
  23 AC_CANONICAL_SYSTEM
  24 AC_ARG_PROGRAM
  25
  26 # Get 'install' or 'install-sh' and its variants.
  27 AC_PROG_INSTALL
  28
  29 sinclude(config/acx.m4)
  30
  31 ### we might need to use some other shell than /bin/sh for running subshells
  32 ### If we are on Windows, search for the shell.  This will permit people
  33 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  34 ### without also having to set CONFIG_SHELL.  This code will work when
  35 ### using bash, which sets OSTYPE.
  36 case "${OSTYPE}" in
  37 *win32*)
  38   if test x${CONFIG_SHELL} = x ; then
  39     if test ! -f /bin/sh ; then
  40       if test x${SHELL} != x && test -f ${SHELL} ; then
  41         CONFIG_SHELL=${SHELL}
  42         export CONFIG_SHELL
  43       else
  44         for prog in sh sh.exe bash bash.exe; do
  45           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  46           for dir in $PATH; do
  47             test -z "$dir" && dir=.
  48             if test -f $dir/$prog; then
  49               CONFIG_SHELL=$dir/$prog
  50               export CONFIG_SHELL
  51               break
  52             fi
  53           done
  54           IFS="$save_ifs"
  55           test -n "${CONFIG_SHELL}" && break
  56         done
  57       fi
  58     fi
  59   fi
  60   ;;
  61 esac
  62
  63 config_shell=${CONFIG_SHELL-/bin/sh}
  64
  65 progname=$0
  66 # if PWD already has a value, it is probably wrong.
  67 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  68
  69 # Export original configure arguments for use by sub-configures.  These
  70 # will be expanded by make, so quote '$'.
  71 tmp="$progname $@"
  72 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
  73 $tmp
  74 EOF_SED
  75 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
  76 rm -f conftestsed.out
  77 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  78
  79 moveifchange=${srcdir}/move-if-change
  80
  81 # Set srcdir to "." if that's what it is.
  82 # This is important for multilib support.
  83 pwd=`${PWDCMD-pwd}`
  84 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  85 if test "${pwd}" = "${srcpwd}" ; then
  86   srcdir=.
  87 fi
  88
  89 topsrcdir=$srcpwd
  90
  91 extra_host_args=
  92 # Define the trigger file to make sure configure will re-run whenever
  93 # the gcc version number changes.
  94 if test "${with_gcc_version_trigger+set}" = set ; then
  95   gcc_version_trigger="$with_gcc_version_trigger"
  96   gcc_version=`grep version_string ${with_gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
  97 else
  98   # If gcc's sources are available, define the trigger file.
  99   if test -f ${topsrcdir}/gcc/version.c ; then
 100     gcc_version_trigger=${topsrcdir}/gcc/version.c
 101     gcc_version=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
 102     case "$ac_configure_args" in
 103       *--with-gcc-version-trigger=$gcc_version_trigger* )
 104         ;;
 105       * )
 106         # Add to all subconfigure arguments: build, host, and target.
 107         ac_configure_args="$ac_configure_args --with-gcc-version-trigger=$gcc_version_trigger"
 108         ;;
 109     esac
 110   fi
 111 fi
 112
 113 ### To add a new directory to the tree, first choose whether it is a target
 114 ### or a host dependent tool.  Then put it into the appropriate list
 115 ### (library or tools, host or target), doing a dependency sort.
 116
 117 # Subdirs will be configured in the order listed in build_configdirs,
 118 # configdirs, or target_configdirs; see the serialization section below.
 119
 120 # Dependency sorting is only needed when *configuration* must be done in
 121 # a particular order.  In all cases a dependency should be specified in
 122 # the Makefile, whether or not it's implicitly specified here.
 123
 124 # Double entries in build_configdirs, configdirs, or target_configdirs may
 125 # cause circular dependencies and break everything horribly.
 126
 127 # these libraries are used by various programs built for the host environment
 128 #
 129 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl tix libgui zlib"
 130
 131 # these tools are built for the host environment
 132 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 133 # know that we are building the simulator.
 134 # binutils, gas and ld appear in that order because it makes sense to run
 135 # "make check" in that particular order.
 136 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"
 137
 138 # libgcj represents the runtime libraries only used by gcj.
 139 libgcj="target-libffi \
 140         target-boehm-gc \
 141         target-zlib \
 142         target-qthreads \
 143         target-libjava"
 144
 145 # these libraries are built for the target environment, and are built after
 146 # the host libraries and the host tools (which may be a cross compiler)
 147 #
 148 target_libraries="target-libiberty \
 149                 target-libgloss \
 150                 target-newlib \
 151                 target-libstdc++-v3 \
 152                 target-libf2c \
 153                 ${libgcj} \
 154                 target-libobjc \
 155                 target-libada"
 156
 157 # these tools are built using the target libraries, and are intended to
 158 # run only in the target environment
 159 #
 160 # note: any program that *uses* libraries that are in the "target_libraries"
 161 # list belongs in this list.  those programs are also very likely
 162 # candidates for the "native_only" list which follows
 163 #
 164 target_tools="target-examples target-groff target-gperf target-rda"
 165
 166 ################################################################################
 167
 168 ## All tools belong in one of the four categories, and are assigned above
 169 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 170 ## is important because configure will choke if they ever get through.
 171 ## ${configdirs} is directories we build using the host tools.
 172 ## ${target_configdirs} is directories we build using the target tools.
 173 #
 174 configdirs=`echo ${host_libs} ${host_tools}`
 175 target_configdirs=`echo ${target_libraries} ${target_tools}`
 176
 177 # Only make build modules if build != host.
 178 # This should be done more generally, but at the moment it doesn't matter.
 179 if test ${host_alias} != ${build_alias} ; then
 180   # This is the only build module.
 181   build_modules=libiberty
 182 else
 183   build_modules=
 184 fi
 185
 186
 187 ################################################################################
 188
 189 srcname="gnu development package"
 190
 191 # This gets set non-empty for some net releases of packages.
 192 appdirs=""
 193
 194 # Define is_cross_compiler to save on calls to 'test'.
 195 is_cross_compiler=
 196 if test x"${host}" = x"${target}" ; then
 197   is_cross_compiler=no
 198 else
 199   is_cross_compiler=yes
 200 fi
 201
 202 # Find the build and target subdir names.
 203 GCC_TOPLEV_SUBDIRS
 204
 205 # Skipdirs are removed silently.
 206 skipdirs=
 207 # Noconfigdirs are removed loudly.
 208 noconfigdirs=""
 209
 210 use_gnu_ld=
 211 # Make sure we don't let GNU ld be added if we didn't want it.
 212 if test x$with_gnu_ld = xno ; then
 213   use_gnu_ld=no
 214   noconfigdirs="$noconfigdirs ld"
 215 fi
 216
 217 use_gnu_as=
 218 # Make sure we don't let GNU as be added if we didn't want it.
 219 if test x$with_gnu_as = xno ; then
 220   use_gnu_as=no
 221   noconfigdirs="$noconfigdirs gas"
 222 fi
 223
 224 # some tools are so dependent upon X11 that if we're not building with X,
 225 # it's not even worth trying to configure, much less build, that tool.
 226
 227 case ${with_x} in
 228   yes | "") ;; # the default value for this tree is that X11 is available
 229   no)
 230     skipdirs="${skipdirs} tk tix itcl libgui"
 231     # We won't be able to build gdbtk without X.
 232     enable_gdbtk=no
 233     ;;
 234   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 235 esac
 236
 237 # Some tools are only suitable for building in a "native" situation.
 238 # Remove these if host!=target.
 239 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"
 240
 241 # Similarly, some are only suitable for cross toolchains.
 242 # Remove these if host=target.
 243 cross_only="target-libgloss target-newlib target-opcodes"
 244
 245 case $is_cross_compiler in
 246   no) skipdirs="${skipdirs} ${cross_only}" ;;
 247   yes) skipdirs="${skipdirs} ${native_only}" ;;
 248 esac
 249
 250 # If both --with-headers and --with-libs are specified, default to
 251 # --without-newlib.
 252 if test x"${with_headers}" != x && test x"${with_headers} != xno \
 253    && test x"${with_libs}" != x && test x"${with_libs} != xno ; then
 254   if test x"${with_newlib}" = x ; then
 255     with_newlib=no
 256   fi
 257 fi
 258
 259 # Recognize --with-newlib/--without-newlib.
 260 case ${with_newlib} in
 261   no) skipdirs="${skipdirs} target-newlib" ;;
 262   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 263 esac
 264
 265 # Configure extra directories which are host specific
 266
 267 case "${host}" in
 268   *-cygwin*)
 269     configdirs="$configdirs libtermcap" ;;
 270 esac
 271
 272 # Remove more programs from consideration, based on the host or
 273 # target this usually means that a port of the program doesn't
 274 # exist yet.
 275
 276 case "${host}" in
 277   hppa*64*-*-*)
 278     noconfigdirs="$noconfigdirs byacc"
 279     ;;
 280   i[[3456789]]86-*-vsta)
 281     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl tix gnuserv gettext"
 282     ;;
 283   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 284     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl tix gnuserv libffi"
 285     ;;
 286   i[[3456789]]86-*-mingw32*)
 287     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl tix gnuserv"
 288     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 289     ;;
 290   i[[3456789]]86-*-beos*)
 291     noconfigdirs="$noconfigdirs tk itcl tix libgui gdb"
 292     ;;
 293   *-*-cygwin*)
 294     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 295     ;;
 296   *-*-netbsd*)
 297     noconfigdirs="$noconfigdirs rcs"
 298     ;;
 299   ppc*-*-pe)
 300     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl tix gnuserv"
 301     ;;
 302   powerpc-*-beos*)
 303     noconfigdirs="$noconfigdirs tk itcl tix libgui gdb dejagnu readline"
 304     ;;
 305   *-*-darwin*)
 306     noconfigdirs="$noconfigdirs tk itcl tix libgui"
 307     ;;
 308 esac
 309
 310 AC_ARG_ENABLE(libada,
 311 [  --enable-libada        Builds libada directory],
 312 ENABLE_LIBADA=$enableval,
 313 ENABLE_LIBADA=yes)
 314 if test "${ENABLE_LIBADA}" != "yes" ; then
 315   noconfigdirs="$noconfigdirs target-libada"
 316 fi
 317
 318 # Save it here so that, even in case of --enable-libgcj, if the Java
 319 # front-end isn't enabled, we still get libgcj disabled.
 320 libgcj_saved=$libgcj
 321 case $enable_libgcj in
 322 yes)
 323   # If we reset it here, it won't get added to noconfigdirs in the
 324   # target-specific build rules, so it will be forcibly enabled
 325   # (unless the Java language itself isn't enabled).
 326   libgcj=
 327   ;;
 328 no)
 329   # Make sure we get it printed in the list of not supported target libs.
 330   noconfigdirs="$noconfigdirs ${libgcj}"
 331   ;;
 332 esac
 333
 334 case "${target}" in
 335   *-*-chorusos)
 336     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 337     ;;
 338   powerpc-*-darwin*)
 339     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 340     noconfigdirs="$noconfigdirs target-libobjc"
 341     ;;
 342   *-*-darwin*)
 343     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 344     noconfigdirs="$noconfigdirs target-libobjc ${libgcj}"
 345     ;;
 346   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 347     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 348     ;;
 349   *-*-kaos*)
 350     # Remove unsupported stuff on all kaOS configurations.
 351     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-libf2c target-librx"
 352     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 353     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 354     noconfigdirs="$noconfigdirs target-libgloss"
 355     ;;
 356   *-*-netbsd*)
 357     # Skip some stuff on all NetBSD configurations.
 358     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 359
 360     # Skip some stuff that's unsupported on some NetBSD configurations.
 361     case "${target}" in
 362       i*86-*-netbsdelf*) ;;
 363       arm*-*-netbsdelf*) ;;
 364       *)
 365         noconfigdirs="$noconfigdirs ${libgcj}"
 366         ;;
 367     esac
 368     ;;
 369   *-*-netware)
 370     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-newlib target-libiberty target-libgloss ${libgcj}"
 371     ;;
 372   *-*-rtems*)
 373     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 374     case ${target} in
 375         h8300*-*-* | h8500-*-*)
 376           noconfigdirs="$noconfigdirs target-libf2c"
 377           ;;
 378         *) ;;
 379     esac
 380     ;;
 381   *-*-uclinux*)
 382     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 383     ;;
 384   *-*-vxworks*)
 385     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}"
 386     ;;
 387   alpha*-dec-osf*)
 388     # ld works, but does not support shared libraries.
 389     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 390     # gas doesn't generate exception information.
 391     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 392     ;;
 393   alpha*-*-*vms*)
 394     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 395     ;;
 396   alpha*-*-linux*)
 397     # newlib is not 64 bit ready
 398     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 399     ;;
 400   alpha*-*-freebsd* | alpha*-*-kfreebsd*-gnu)
 401     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 402     ;;
 403   alpha*-*-*)
 404     # newlib is not 64 bit ready
 405     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 406     ;;
 407   am33_2.0-*-linux*)
 408     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 409     ;;
 410   sh-*-linux*)
 411     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 412     ;;
 413   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 414     noconfigdirs="$noconfigdirs ${libgcj}"
 415     noconfigdirs="$noconfigdirs target-examples"
 416     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 417     noconfigdirs="$noconfigdirs tcl tix tk itcl libgui sim"
 418     noconfigdirs="$noconfigdirs expect dejagnu"
 419     # the C++ libraries don't build on top of CE's C libraries
 420     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 421     noconfigdirs="$noconfigdirs target-newlib"
 422     case "${host}" in
 423       *-*-cygwin*) ;; # keep gdb and readline
 424       *) noconfigdirs="$noconfigdirs gdb readline"
 425          ;;
 426     esac
 427     ;;
 428   arc-*-*)
 429     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 430     ;;
 431   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 432     noconfigdirs="$noconfigdirs ${libgcj}"
 433     ;;
 434   arm-*-elf* | strongarm-*-elf* | xscale-*-elf*)
 435     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 436     ;;
 437   arm-*-pe*)
 438     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 439     ;;
 440   arm-*-oabi*)
 441     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 442     ;;
 443   thumb-*-coff)
 444     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 445     ;;
 446   thumb-*-elf)
 447     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 448     ;;
 449   thumb-*-oabi)
 450     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 451     ;;
 452   thumb-*-pe)
 453     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 454     ;;
 455   arm-*-riscix*)
 456     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 457     ;;
 458   avr-*-*)
 459     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 460     ;;
 461   c4x-*-* | tic4x-*-*)
 462     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 463     ;;
 464   c54x*-*-* | tic54x-*-*)
 465     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 466     ;;
 467   cris-*-*)
 468     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 469     ;;
 470   d10v-*-*)
 471     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 472     ;;
 473   d30v-*-*)
 474     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 475     ;;
 476   fr30-*-elf*)
 477     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 478     ;;
 479   frv-*-*)
 480     noconfigdirs="$noconfigdirs ${libgcj}"
 481     ;;
 482   h8300*-*-*)
 483     noconfigdirs="$noconfigdirs target-libgloss ${libgcj} target-libf2c"
 484     ;;
 485   h8500-*-*)
 486     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} target-libf2c"
 487     ;;
 488   hppa*64*-*-linux* | parisc*64*-*-linux*)
 489     # In this case, it's because the hppa64-linux target is for
 490     # the kernel only at this point and has no libc, and thus no
 491     # headers, crt*.o, etc., all of which are needed by these.
 492     noconfigdirs="$noconfigdirs target-zlib"
 493     ;;
 494   hppa*-*-*elf* | \
 495   parisc*-*-linux* | hppa*-*-linux* | \
 496   hppa*-*-lites* | \
 497   hppa*-*-openbsd* | \
 498   hppa*64*-*-*)
 499     noconfigdirs="$noconfigdirs ${libgcj}"
 500     # Do configure ld/binutils/gas for this case.
 501     ;;
 502   hppa*-*-*)
 503     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 504     # build on HP-UX 10.20.
 505     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 506     ;;
 507   i960-*-*)
 508     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 509     ;;
 510   ia64*-*-elf*)
 511     # No gdb support yet.
 512     noconfigdirs="$noconfigdirs tix readline mmalloc libgui itcl gdb"
 513     ;;
 514   ia64*-**-hpux*)
 515     # No gdb or ld support yet.
 516     noconfigdirs="$noconfigdirs ${libgcj} tix readline mmalloc libgui itcl gdb ld"
 517     ;;
 518   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 519     noconfigdirs="$noconfigdirs ${libgcj}"
 520     ;;
 521   i[[3456789]]86-*-freebsd* | i[[3456789]]86-*-kfreebsd*-gnu)
 522     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 523     ;;
 524   i[[3456789]]86-*-linux*)
 525     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 526     # not build java stuff by default.
 527     case "${target}" in
 528       *-*-*libc1*)
 529         noconfigdirs="$noconfigdirs ${libgcj}";;
 530     esac
 531
 532     # This section makes it possible to build newlib natively on linux.
 533     # If we are using a cross compiler then don't configure newlib.
 534     if test x${is_cross_compiler} != xno ; then
 535       noconfigdirs="$noconfigdirs target-newlib"
 536     fi
 537     noconfigdirs="$noconfigdirs target-libgloss"
 538     # If we are not using a cross compiler, do configure newlib.
 539     # Note however, that newlib will only be configured in this situation
 540     # if the --with-newlib option has been given, because otherwise
 541     # 'target-newlib' will appear in skipdirs.
 542     ;;
 543   i[[3456789]]86-*-mingw32*)
 544     target_configdirs="$target_configdirs target-mingw"
 545     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 546
 547     # Can't build gdb for mingw32 if not native.
 548     case "${host}" in
 549       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 550       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix gnuserv"
 551          ;;
 552     esac
 553     ;;
 554   *-*-cygwin*)
 555     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 556     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 557     # always build newlib.
 558     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 559
 560     # Can't build gdb for Cygwin if not native.
 561     case "${host}" in
 562       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 563       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix libgui gnuserv"
 564          ;;
 565     esac
 566     ;;
 567   i[[3456789]]86-*-pe)
 568     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 569     ;;
 570   i[[3456789]]86-*-sco3.2v5*)
 571     # The linker does not yet know about weak symbols in COFF,
 572     # and is not configured to handle mixed ELF and COFF.
 573     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 574     ;;
 575   i[[3456789]]86-*-sco*)
 576     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 577     ;;
 578   i[[3456789]]86-*-solaris2*)
 579     noconfigdirs="$noconfigdirs target-libgloss"
 580     ;;
 581   i[[3456789]]86-*-sysv4*)
 582     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 583     ;;
 584   i[[3456789]]86-*-beos*)
 585     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 586     ;;
 587   m32r-*-*)
 588     noconfigdirs="$noconfigdirs ${libgcj}"
 589     ;;
 590   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 591     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 592     ;;
 593   m68k-*-elf*)
 594     noconfigdirs="$noconfigdirs ${libgcj}"
 595     ;;
 596   m68k-*-coff*)
 597     noconfigdirs="$noconfigdirs ${libgcj}"
 598     ;;
 599   mcore-*-pe*)
 600   # The EPOC C++ environment does not support exceptions or rtti,
 601   # and so building libstdc++-v3 tends not to always work.
 602     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 603     ;;
 604   mmix-*-*)
 605     noconfigdirs="$noconfigdirs ${libgcj} gdb libgloss"
 606     ;;
 607   mn10200-*-*)
 608     noconfigdirs="$noconfigdirs ${libgcj}"
 609     ;;
 610   mn10300-*-*)
 611     noconfigdirs="$noconfigdirs ${libgcj}"
 612     ;;
 613   powerpc-*-aix*)
 614     # copied from rs6000-*-* entry
 615     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 616     ;;
 617   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 618     target_configdirs="$target_configdirs target-winsup"
 619     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl tix gnuserv ${libgcj}"
 620     # always build newlib.
 621     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 622     ;;
 623     # This is temporary until we can link against shared libraries
 624   powerpcle-*-solaris*)
 625     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl tix gnuserv ${libgcj}"
 626     ;;
 627   powerpc-*-beos*)
 628     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 629     ;;
 630   powerpc-*-eabi)
 631     noconfigdirs="$noconfigdirs ${libgcj}"
 632     ;;
 633   rs6000-*-lynxos*)
 634     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 635     ;;
 636   rs6000-*-aix*)
 637     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 638     ;;
 639   rs6000-*-*)
 640     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 641     ;;
 642   m68k-apollo-*)
 643     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 644     ;;
 645   mips*-*-irix5*)
 646     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 647     ;;
 648   mips*-*-irix6*)
 649     # Linking libjava exceeds command-line length limits on at least
 650     # IRIX 6.2, but not on IRIX 6.5.
 651     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 652     # <oldham@codesourcery.com>
 653     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 654     ;;
 655   mips*-dec-bsd*)
 656     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 657     ;;
 658   mips*-*-bsd*)
 659     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 660     ;;
 661   mipstx39-*-*)
 662     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 663     ;;
 664   mips64*-*-linux*)
 665     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 666     ;;
 667   mips*-*-linux*)
 668     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 669     ;;
 670   mips*-*-*)
 671     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 672     ;;
 673   romp-*-*)
 674     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 675     ;;
 676   sh-*-*)
 677     case "${host}" in
 678       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 679       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 680       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 681       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 682     esac
 683     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 684     ;;
 685   sh64-*-*)
 686     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 687     ;;
 688   sparc-*-elf*)
 689     noconfigdirs="$noconfigdirs ${libgcj}"
 690     ;;
 691   sparc64-*-elf*)
 692     noconfigdirs="$noconfigdirs ${libgcj}"
 693     ;;
 694   sparclite-*-*)
 695     noconfigdirs="$noconfigdirs ${libgcj}"
 696     ;;
 697   sparc-*-sunos4*)
 698     noconfigdirs="$noconfigdirs ${libgcj}"
 699     if test x${is_cross_compiler} != xno ; then
 700            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 701     else
 702            use_gnu_ld=no
 703     fi
 704     ;;
 705   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 706     ;;
 707   v810-*-*)
 708     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 709     ;;
 710   v850-*-*)
 711     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 712     ;;
 713   v850e-*-*)
 714     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 715     ;;
 716   v850ea-*-*)
 717     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 718     ;;
 719   vax-*-vms)
 720     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 721     ;;
 722   vax-*-*)
 723     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 724     ;;
 725   xtensa-*-*)
 726     noconfigdirs="$noconfigdirs ${libgcj}"
 727     ;;
 728   ip2k-*-*)
 729     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 730     ;;
 731   *-*-linux*)
 732     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 733     ;;
 734   *-*-lynxos*)
 735     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 736     ;;
 737   *-*-*)
 738     noconfigdirs="$noconfigdirs ${libgcj}"
 739     ;;
 740 esac
 741
 742 # If we aren't building newlib, then don't build libgloss, since libgloss
 743 # depends upon some newlib header files.
 744 case "${noconfigdirs}" in
 745   *target-libgloss*) ;;
 746   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 747 esac
 748
 749 # Work in distributions that contain no compiler tools, like Autoconf.
 750 tentative_cc=""
 751 host_makefile_frag=/dev/null
 752 if test -d ${srcdir}/config ; then
 753 case "${host}" in
 754   m68k-hp-hpux*)
 755     # Avoid "too much defining" errors from HPUX compiler.
 756     tentative_cc="cc -Wp,-H256000"
 757     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 758     # If it's HP/UX ar, this should be harmless.
 759     RANLIB="ar ts"
 760     ;;
 761   m68k-apollo-sysv*)
 762     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 763     ;;
 764   m68k-apollo-bsd*)
 765     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 766     # chokes on bfd, the compiler won't let you assign integers to enums, and
 767     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 768     # the apollo compiler" (the preferred version of GCC could be called cc,
 769     # or whatever), but I'm not sure leaving CC as cc is any better...
 770     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 771     # Used to have BISON=yacc.
 772     tentative_cc=gcc
 773     ;;
 774   m88k-dg-dgux*)
 775     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 776     ;;
 777   m88k-harris-cxux*)
 778     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 779     tentative_cc="cc -Xa"
 780     host_makefile_frag="config/mh-cxux"
 781     ;;
 782   m88k-motorola-sysv*)
 783     ;;
 784   mips*-dec-ultrix*)
 785     tentative_cc="cc -Wf,-XNg1000"
 786     host_makefile_frag="config/mh-decstation"
 787     ;;
 788   mips*-nec-sysv4*)
 789     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 790     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 791     host_makefile_frag="config/mh-necv4"
 792     ;;
 793   mips*-sgi-irix4*)
 794     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 795     # environment.  Also bump switch table size so that cp-parse will
 796     # compile.  Bump string length limit so linker builds.
 797     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 798     ;;
 799   mips*-*-sysv4*)
 800     host_makefile_frag="config/mh-sysv4"
 801     ;;
 802   mips*-*-sysv*)
 803     # This is for a MIPS running RISC/os 4.52C.
 804
 805     # This is needed for GDB, but needs to be in the top-level make because
 806     # if a library is compiled with the bsd headers and gets linked with the
 807     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 808     # a different size).
 809     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 810     # known except to select the sysv environment.  Could we use /proc instead?
 811     # These "sysv environments" and "bsd environments" often end up being a pain.
 812     #
 813     # This is not part of CFLAGS because perhaps not all C compilers have this
 814     # option.
 815     tentative_cc="cc -systype sysv"
 816     ;;
 817   i370-ibm-opened*)
 818     tentative_cc="c89"
 819     ;;
 820   i[[3456789]]86-*-sysv5*)
 821     host_makefile_frag="config/mh-sysv5"
 822     ;;
 823   i[[3456789]]86-*-dgux*)
 824     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 825     host_makefile_frag="config/mh-dgux386"
 826     ;;
 827   i[[3456789]]86-ncr-sysv4.3*)
 828     # The MetaWare compiler will generate a copyright message unless you
 829     # turn it off by adding the -Hnocopyr flag.
 830     tentative_cc="cc -Hnocopyr"
 831     ;;
 832   i[[3456789]]86-ncr-sysv4*)
 833     # for an NCR 3000 (i486/SVR4) system.
 834     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 835     # This compiler not only emits obnoxious copyright messages every time
 836     # you run it, but it chokes and dies on a whole bunch of GNU source
 837     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 838     tentative_cc="/usr/ccs/ATT/cc"
 839     host_makefile_frag="config/mh-ncr3000"
 840     ;;
 841   i[[3456789]]86-*-sco3.2v5*)
 842     ;;
 843   i[[3456789]]86-*-sco*)
 844     # The native C compiler botches some simple uses of const.  Unfortunately,
 845     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 846     tentative_cc="cc -Dconst="
 847     host_makefile_frag="config/mh-sco"
 848     ;;
 849   i[[3456789]]86-*-udk*)
 850     host_makefile_frag="config/mh-sysv5"
 851     ;;
 852   i[[3456789]]86-*-solaris2*)
 853     host_makefile_frag="config/mh-sysv4"
 854     ;;
 855   i[[3456789]]86-*-msdosdjgpp*)
 856     host_makefile_frag="config/mh-djgpp"
 857     ;;
 858   *-cygwin*)
 859     host_makefile_frag="config/mh-cygwin"
 860     ;;
 861   *-mingw32*)
 862     host_makefile_frag="config/mh-mingw32"
 863     ;;
 864   *-interix*)
 865     host_makefile_frag="config/mh-interix"
 866     ;;
 867   vax-*-ultrix2*)
 868     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 869     tentative_cc=gcc
 870     ;;
 871   *-*-solaris2*)
 872     host_makefile_frag="config/mh-solaris"
 873     ;;
 874   m68k-sun-sunos*)
 875     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 876     # without overflowing the jump tables (-J says to use a 32 bit table)
 877     tentative_cc="cc -J"
 878     ;;
 879   *-hp-hpux*)
 880     tentative_cc="cc -Wp,-H256000"
 881     ;;
 882   *-*-hiux*)
 883     tentative_cc="cc -Wp,-H256000"
 884     ;;
 885   rs6000-*-lynxos*)
 886     # /bin/cc is less than useful for our purposes.  Always use GCC
 887     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 888     host_makefile_frag="config/mh-lynxrs6k"
 889     ;;
 890   *-*-lynxos*)
 891     # /bin/cc is less than useful for our purposes.  Always use GCC
 892     tentative_cc="/bin/gcc"
 893     ;;
 894   *-*-sysv4*)
 895     host_makefile_frag="config/mh-sysv4"
 896     ;;
 897 esac
 898 fi
 899
 900 # If we aren't going to be using gcc, see if we can extract a definition
 901 # of CC from the fragment.
 902 # Actually, use the 'pre-extracted' version above.
 903 if test -z "${CC}" && test "${build}" = "${host}" ; then
 904   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 905   found=
 906   for dir in $PATH; do
 907     test -z "$dir" && dir=.
 908     if test -f $dir/gcc; then
 909       found=yes
 910       break
 911     fi
 912   done
 913   IFS="$save_ifs"
 914   if test -z "${found}" && test -n "${tentative_cc}" ; then
 915     CC=$tentative_cc
 916   fi
 917 fi
 918
 919 if test "${build}" != "${host}" ; then
 920   # If we are doing a Canadian Cross, in which the host and build systems
 921   # are not the same, we set reasonable default values for the tools.
 922
 923   BISON=${BISON-bison}
 924   CC=${CC-${host_alias}-gcc}
 925   CFLAGS=${CFLAGS-"-g -O2"}
 926   CXX=${CXX-${host_alias}-c++}
 927   CXXFLAGS=${CXXFLAGS-"-g -O2"}
 928   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
 929   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
 930   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
 931   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
 932   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
 933   BUILD_PREFIX=${build_alias}-
 934   BUILD_PREFIX_1=${build_alias}-
 935   MAKEINFO=${MAKEINFO-makeinfo}
 936
 937   if test -z "${YACC}" ; then
 938     IFS="${IFS=         }"; save_ifs="$IFS"; IFS="${IFS}:"
 939     for dir in $PATH; do
 940       test -z "$dir" && dir=.
 941       if test -f $dir/bison; then
 942         YACC="bison -y"
 943         break
 944       fi
 945       if test -f $dir/byacc; then
 946         YACC=byacc
 947         break
 948       fi
 949       if test -f $dir/yacc; then
 950         YACC=yacc
 951         break
 952       fi
 953     done
 954     IFS="$save_ifs"
 955     if test -z "${YACC}" ; then
 956       YACC="bison -y"
 957     fi
 958   fi
 959
 960   if test -z "${LEX}" ; then
 961     IFS="${IFS=         }"; save_ifs="$IFS"; IFS="${IFS}:"
 962     for dir in $PATH; do
 963       test -z "$dir" && dir=.
 964       if test -f $dir/flex; then
 965         LEX=flex
 966         break
 967       fi
 968       if test -f $dir/lex; then
 969         LEX=lex
 970         break
 971       fi
 972     done
 973     IFS="$save_ifs"
 974     LEX=${LEX-flex}
 975   fi
 976
 977 else
 978   # Set reasonable default values for some tools even if not Canadian.
 979   # Of course, these are different reasonable default values, originally
 980   # specified directly in the Makefile.
 981   # We don't export, so that autoconf can do its job.
 982   # Note that all these settings are above the fragment inclusion point
 983   # in Makefile.in, so can still be overridden by fragments.
 984   # This is all going to change when we autoconfiscate...
 985
 986   BISON="\$(USUAL_BISON)"
 987   CC_FOR_BUILD="\$(CC)"
 988   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
 989   BUILD_PREFIX=
 990   BUILD_PREFIX_1=loser-
 991   MAKEINFO="\$(USUAL_MAKEINFO)"
 992   LEX="\$(USUAL_LEX)"
 993   YACC="\$(USUAL_YACC)"
 994
 995   # If CC is still not set, try to get gcc.
 996   cc_prog_is_gcc=
 997   if test -z "${CC}" ; then
 998     IFS="${IFS=         }"; save_ifs="$IFS"; IFS="${IFS}:"
 999     for dir in $PATH; do
1000       test -z "$dir" && dir=.
1001       if test -f $dir/gcc; then
1002         CC="gcc"
1003         cc_prog_is_gcc=yes
1004         echo 'void f(){}' > conftest.c
1005         if test -z "`${CC} -g -c conftest.c 2>&1`"; then
1006           CFLAGS=${CFLAGS-"-g -O2"}
1007           CXXFLAGS=${CXXFLAGS-"-g -O2"}
1008         else
1009           CFLAGS=${CFLAGS-"-O2"}
1010           CXXFLAGS=${CXXFLAGS-"-O2"}
1011         fi
1012         rm -f conftest*
1013         break
1014       fi
1015     done
1016     IFS="$save_ifs"
1017     CC=${CC-cc}
1018   else
1019     # Determine if we are using gcc.
1020     cat > conftest.c <<EOF
1021 #ifdef __GNUC__
1022   yes;
1023 #endif
1024 EOF
1025     if ${CC} -E conftest.c | grep yes >/dev/null 2>&1; then
1026       cc_prog_is_gcc=yes
1027     fi
1028     rm -f conftest.c
1029     if test -z "${CFLAGS}"; then
1030       # Here CC is set but CFLAGS is not.  Use a quick hack to use -O2 if CC
1031       # is set to a version of gcc.
1032       if test "$cc_prog_is_gcc" = yes; then
1033         echo 'void f(){}' > conftest.c
1034         if test -z "`${CC} -g -c conftest.c 2>&1`"; then
1035           CFLAGS=${CFLAGS-"-g -O2"}
1036           CXXFLAGS=${CXXFLAGS-"-g -O2"}
1037         else
1038           CFLAGS=${CFLAGS-"-O2"}
1039           CXXFLAGS=${CXXFLAGS-"-O2"}
1040         fi
1041         rm -f conftest*
1042       fi
1043     fi
1044   fi
1045
1046   # We must set the default linker to the linker used by gcc for the correct
1047   # operation of libtool.  If LD is not defined and we are using gcc, try to
1048   # set the LD default to the ld used by gcc.
1049   if test -z "$LD"; then
1050     if test "$cc_prog_is_gcc" = yes; then
1051       case $build in
1052       *-*-mingw*)
1053         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1054       *)
1055         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1056       esac
1057       case $gcc_prog_ld in
1058       # Accept absolute paths.
1059       [[\\/]* | [A-Za-z]:[\\/]*)]
1060         LD="$gcc_prog_ld" ;;
1061       esac
1062     fi
1063   fi
1064
1065   CXX=${CXX-"c++"}
1066   CFLAGS=${CFLAGS-"-g"}
1067   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1068 fi
1069
1070 ACX_PROG_GNAT
1071 ACX_PROG_CMP_IGNORE_INITIAL
1072
1073 # By default, C is the only stage 1 language.
1074 stage1_languages=c
1075 AC_SUBST(stage1_languages)
1076
1077 # Figure out what language subdirectories are present.
1078 # Look if the user specified --enable-languages="..."; if not, use
1079 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1080 # go away some day.
1081 # NB:  embedded tabs in this IF block -- do not untabify
1082 if test -d ${srcdir}/gcc; then
1083   if test x"${enable_languages+set}" != xset; then
1084     if test x"${LANGUAGES+set}" = xset; then
1085       enable_languages="${LANGUAGES}"
1086         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1087     else
1088       enable_languages=all
1089     fi
1090   else
1091     if test x"${enable_languages}" = x ||
1092        test x"${enable_languages}" = xyes;
1093        then
1094       echo configure.in: --enable-languages needs at least one language argument 1>&2
1095       exit 1
1096     fi
1097   fi
1098   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1099
1100   # First scan to see if an enabled language requires some other language.
1101   # We assume that a given config-lang.in will list all the language
1102   # front ends it requires, even if some are required indirectly.
1103   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1104     case ${lang_frag} in
1105       ..) ;;
1106       # The odd quoting in the next line works around
1107       # an apparent bug in bash 1.12 on linux.
1108       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1109       *)
1110         # From the config-lang.in, get $language, $lang_requires
1111         language=
1112         lang_requires=
1113         . ${lang_frag}
1114         for other in ${lang_requires} ; do
1115           case ,${enable_languages}, in
1116             *,$other,*) ;;
1117             *,all,*) ;;
1118             *,$language,*)
1119               echo " \`$other' language required by \`$language'; enabling" 1>&2
1120               enable_languages="${enable_languages},${other}"
1121               ;;
1122           esac
1123         done
1124         ;;
1125     esac
1126   done
1127
1128   new_enable_languages=c
1129   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1130
1131   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1132     case ${lang_frag} in
1133       ..) ;;
1134       # The odd quoting in the next line works around
1135       # an apparent bug in bash 1.12 on linux.
1136       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1137       *)
1138         # From the config-lang.in, get $language, $target_libs,
1139         # $lang_dirs, $boot_language, and $build_by_default
1140         language=
1141         target_libs=
1142         lang_dirs=
1143         boot_language=
1144         build_by_default=
1145         . ${lang_frag}
1146         # This is quite sensitive to the ordering of the case statement arms.
1147         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1148           *::*:*)
1149             echo "${lang_frag} doesn't set \$language." 1>&2
1150             exit 1
1151             ;;
1152           *:ada:no:*)
1153             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1154             add_this_lang=no
1155             ;;
1156           *,${language},*:*:*:*)
1157             # Language was explicitly selected; include it.
1158             add_this_lang=yes
1159             ;;
1160           *,all,*:*:*:no)
1161             # 'all' was selected, but this is not a default language
1162             # so do not include it.
1163             add_this_lang=no
1164             ;;
1165           *,all,*:*:*:*)
1166             # 'all' was selected and this is a default language; include it.
1167             add_this_lang=yes
1168             ;;
1169           *)
1170             add_this_lang=no
1171             ;;
1172         esac
1173         case $add_this_lang in
1174           no)
1175             # Remove language-dependent dirs.
1176             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1177             ;;
1178           *)
1179             new_enable_languages="$new_enable_languages,$language"
1180             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1181             case ${boot_language} in
1182               yes)
1183                 # Add to (comma-separated) list of stage 1 languages.
1184                 stage1_languages="${stage1_languages},${language}"
1185                 ;;
1186             esac
1187             ;;
1188         esac
1189         ;;
1190     esac
1191   done
1192
1193   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1194   if test "x$missing_languages" != x; then
1195     AC_MSG_ERROR([
1196 The following requested languages were not found: ${missing_languages}])
1197   fi
1198
1199   if test "x$new_enable_languages" != "x$enable_languages"; then
1200     echo The following languages will be built: ${new_enable_languages}
1201   fi
1202   enable_languages="$new_enable_languages"
1203   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1204 fi
1205
1206 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
1207 # $target_configdirs.
1208 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1209
1210 notsupp=""
1211 for dir in . $skipdirs $noconfigdirs ; do
1212   dirname=`echo $dir | sed -e s/target-//g`
1213   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1214     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1215     if test -r $srcdir/$dirname/configure ; then
1216       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1217         true
1218       else
1219         notsupp="$notsupp $dir"
1220       fi
1221     fi
1222   fi
1223   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1224     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1225     if test -r $srcdir/$dirname/configure ; then
1226       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1227         true
1228       else
1229         notsupp="$notsupp $dir"
1230       fi
1231     fi
1232   fi
1233 done
1234
1235 # Sometimes the tools are distributed with libiberty but with no other
1236 # libraries.  In that case, we don't want to build target-libiberty.
1237 if test -n "${target_configdirs}" ; then
1238   others=
1239   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1240     if test "$i" != "libiberty" ; then
1241       if test -r $srcdir/$i/configure ; then
1242         others=yes;
1243         break;
1244       fi
1245     fi
1246   done
1247   if test -z "${others}" ; then
1248     target_configdirs=
1249   fi
1250 fi
1251
1252 # Quietly strip out all directories which aren't configurable in this tree.
1253 # This relies on all configurable subdirectories being autoconfiscated, which
1254 # is now the case.
1255 configdirs_all="$configdirs"
1256 configdirs=
1257 for i in ${configdirs_all} ; do
1258   if test -f ${srcdir}/$i/configure ; then
1259     configdirs="${configdirs} $i"
1260   fi
1261 done
1262 target_configdirs_all="$target_configdirs"
1263 target_configdirs=
1264 for i in ${target_configdirs_all} ; do
1265   j=`echo $i | sed -e s/target-//g`
1266   if test -f ${srcdir}/$j/configure ; then
1267     target_configdirs="${target_configdirs} $i"
1268   fi
1269 done
1270
1271 # Produce a warning message for the subdirs we can't configure.
1272 # This isn't especially interesting in the Cygnus tree, but in the individual
1273 # FSF releases, it's important to let people know when their machine isn't
1274 # supported by the one or two programs in a package.
1275
1276 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1277   # If $appdirs is non-empty, at least one of those directories must still
1278   # be configured, or we error out.  (E.g., if the gas release supports a
1279   # specified target in some subdirs but not the gas subdir, we shouldn't
1280   # pretend that all is well.)
1281   if test -n "$appdirs" ; then
1282     for dir in $appdirs ; do
1283       if test -r $dir/Makefile.in ; then
1284         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1285           appdirs=""
1286           break
1287         fi
1288         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1289           appdirs=""
1290           break
1291         fi
1292       fi
1293     done
1294     if test -n "$appdirs" ; then
1295       echo "*** This configuration is not supported by this package." 1>&2
1296       exit 1
1297     fi
1298   fi
1299   # Okay, some application will build, or we don't care to check.  Still
1300   # notify of subdirs not getting built.
1301   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1302   echo "    ${notsupp}" 1>&2
1303   echo "    (Any other directories should still work fine.)" 1>&2
1304 fi
1305
1306 case "$host" in
1307   *msdosdjgpp*)
1308     enable_gdbtk=no ;;
1309 esac
1310
1311 copy_dirs=
1312
1313 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1314 # the named directory are copied to $(tooldir)/sys-include.
1315 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1316   if test x${is_cross_compiler} = xno ; then
1317     echo 1>&2 '***' --with-headers is only supported when cross compiling
1318     exit 1
1319   fi
1320   if test x"${with_headers}" != xyes ; then
1321     case "${exec_prefixoption}" in
1322     "") x=${prefix} ;;
1323     *) x=${exec_prefix} ;;
1324     esac
1325     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1326   fi
1327 fi
1328
1329 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1330 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1331 # are permitted.
1332 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1333   if test x${is_cross_compiler} = xno ; then
1334     echo 1>&2 '***' --with-libs is only supported when cross compiling
1335     exit 1
1336   fi
1337   if test x"${with_libs}" != xyes ; then
1338     # Copy the libraries in reverse order, so that files in the first named
1339     # library override files in subsequent libraries.
1340     case "${exec_prefixoption}" in
1341     "") x=${prefix} ;;
1342     *) x=${exec_prefix} ;;
1343     esac
1344     for l in ${with_libs}; do
1345       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1346     done
1347   fi
1348 fi
1349
1350 # Handle ${copy_dirs}
1351 set fnord ${copy_dirs}
1352 shift
1353 while test $# != 0 ; do
1354   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1355     :
1356   else
1357     echo Copying $1 to $2
1358
1359     # Use the install script to create the directory and all required
1360     # parent directories.
1361     if test -d $2 ; then
1362       :
1363     else
1364       echo >config.temp
1365       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1366     fi
1367
1368     # Copy the directory, assuming we have tar.
1369     # FIXME: Should we use B in the second tar?  Not all systems support it.
1370     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1371
1372     # It is the responsibility of the user to correctly adjust all
1373     # symlinks.  If somebody can figure out how to handle them correctly
1374     # here, feel free to add the code.
1375
1376     echo $1 > $2/COPIED
1377   fi
1378   shift; shift
1379 done
1380
1381 extra_arflags_for_target=
1382 extra_nmflags_for_target=
1383 extra_ranlibflags_for_target=
1384 target_makefile_frag=/dev/null
1385 case "${target}" in
1386   i[[3456789]]86-*-netware*)
1387     target_makefile_frag="config/mt-netware"
1388     ;;
1389   powerpc-*-netware*)
1390     target_makefile_frag="config/mt-netware"
1391     ;;
1392   *-*-linux*)
1393     target_makefile_frag="config/mt-linux"
1394     ;;
1395   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1396     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1397     # commands to handle both 32-bit and 64-bit objects.  These flags are
1398     # harmless if we're using GNU nm or ar.
1399     extra_arflags_for_target=" -X32_64"
1400     extra_nmflags_for_target=" -B -X32_64"
1401     ;;
1402   *-*-darwin*)
1403     # ranlib from Darwin requires the -c flag to look at common symbols.
1404     extra_ranlibflags_for_target=" -c"
1405     ;;
1406   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1407     target_makefile_frag="config/mt-wince"
1408     ;;
1409 esac
1410
1411 alphaieee_frag=/dev/null
1412 case $target in
1413   alpha*-*-*)
1414     # This just makes sure to use the -mieee option to build target libs.
1415     # This should probably be set individually by each library.
1416     alphaieee_frag="config/mt-alphaieee"
1417     ;;
1418 esac
1419
1420 # If --enable-target-optspace always use -Os instead of -O2 to build
1421 # the target libraries, similarly if it is not specified, use -Os
1422 # on selected platforms.
1423 ospace_frag=/dev/null
1424 case "${enable_target_optspace}:${target}" in
1425   yes:*)
1426     ospace_frag="config/mt-ospace"
1427     ;;
1428   :d30v-*)
1429     ospace_frag="config/mt-d30v"
1430     ;;
1431   :m32r-* | :d10v-* | :fr30-*)
1432     ospace_frag="config/mt-ospace"
1433     ;;
1434   no:* | :*)
1435     ;;
1436   *)
1437     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1438     ;;
1439 esac
1440
1441 # Set with_gnu_as and with_gnu_ld as appropriate.
1442 #
1443 # This is done by determining whether or not the appropriate directory
1444 # is available, and by checking whether or not specific configurations
1445 # have requested that this magic not happen.
1446 #
1447 # The command line options always override the explicit settings in
1448 # configure.in, and the settings in configure.in override this magic.
1449 #
1450 # If the default for a toolchain is to use GNU as and ld, and you don't
1451 # want to do that, then you should use the --without-gnu-as and
1452 # --without-gnu-ld options for the configure script.
1453
1454 if test x${use_gnu_as} = x &&
1455    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1456   with_gnu_as=yes
1457   extra_host_args="$extra_host_args --with-gnu-as"
1458 fi
1459
1460 if test x${use_gnu_ld} = x &&
1461    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1462   with_gnu_ld=yes
1463   extra_host_args="$extra_host_args --with-gnu-ld"
1464 fi
1465
1466 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1467 # can detect this case.
1468
1469 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1470   with_newlib=yes
1471   extra_host_args="$extra_host_args --with-newlib"
1472 fi
1473
1474
1475 # Default to using --with-stabs for certain targets.
1476 if test x${with_stabs} = x ; then
1477   case "${target}" in
1478   mips*-*-irix[[56]]*)
1479     ;;
1480   mips*-*-* | alpha*-*-osf*)
1481     with_stabs=yes;
1482     extra_host_args="${extra_host_args} --with-stabs"
1483     ;;
1484   esac
1485 fi
1486
1487 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1488 # them automatically.
1489 case "${host}" in
1490   hppa*64*-*-hpux11*)
1491     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1492     ;;
1493 esac
1494
1495 # Some systems (e.g., one of the i386-aix systems the gas testers are
1496 # using) don't handle "\$" correctly, so don't use it here.
1497 tooldir='${exec_prefix}'/${target_alias}
1498 build_tooldir=${tooldir}
1499
1500 # Generate default definitions for YACC, M4, LEX.  These are used if the
1501 # Makefile can't locate these programs in objdir.
1502 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1503 AC_CHECK_PROGS([DEFAULT_YACC], ['bison -y' byacc yacc], [$MISSING bison])
1504 AC_CHECK_PROGS([DEFAULT_M4], [gm4 gnum4 m4], [$MISSING m4])
1505 AC_CHECK_PROGS([DEFAULT_LEX], [flex lex], [$MISSING flex])
1506
1507 # Create a .gdbinit file which runs the one in srcdir
1508 # and tells GDB to look there for source files.
1509
1510 if test -r ${srcdir}/.gdbinit ; then
1511   case ${srcdir} in
1512     .) ;;
1513     *) cat > ./.gdbinit <<EOF
1514 # ${NO_EDIT}
1515 dir ${srcdir}
1516 dir .
1517 source ${srcdir}/.gdbinit
1518 EOF
1519     ;;
1520   esac
1521 fi
1522
1523 # Make sure that the compiler is able to generate an executable.  If it
1524 # can't, we are probably in trouble.  We don't care whether we can run the
1525 # executable--we might be using a cross compiler--we only care whether it
1526 # can be created.  At this point the main configure script has set CC.
1527 we_are_ok=no
1528 echo "int main () { return 0; }" > conftest.c
1529 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1530 if test $? = 0 ; then
1531   if test -s conftest || test -s conftest.exe ; then
1532     we_are_ok=yes
1533   fi
1534 fi
1535 case $we_are_ok in
1536   no)
1537     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1538     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1539     rm -f conftest*
1540     exit 1
1541     ;;
1542 esac
1543 rm -f conftest*
1544
1545 # The Solaris /usr/ucb/cc compiler does not appear to work.
1546 case "${host}" in
1547   sparc-sun-solaris2*)
1548       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1549       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1550           could_use=
1551           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1552           if test -d /opt/cygnus/bin ; then
1553               if test "$could_use" = "" ; then
1554                   could_use="/opt/cygnus/bin"
1555               else
1556                   could_use="$could_use or /opt/cygnus/bin"
1557               fi
1558           fi
1559         if test "$could_use" = "" ; then
1560             echo "Warning: compilation may fail because you're using"
1561             echo "/usr/ucb/cc.  You should change your PATH or CC "
1562             echo "variable and rerun configure."
1563         else
1564             echo "Warning: compilation may fail because you're using"
1565             echo "/usr/ucb/cc, when you should use the C compiler from"
1566             echo "$could_use.  You should change your"
1567             echo "PATH or CC variable and rerun configure."
1568         fi
1569       fi
1570   ;;
1571 esac
1572
1573 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1574 # binutils tools will find libbfd.so.
1575 case "${enable_shared}" in
1576   no | "") SET_LIB_PATH= ;;
1577   *) SET_LIB_PATH="\$(REALLY_SET_LIB_PATH)" ;;
1578 esac
1579
1580 case "${host}" in
1581   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1582   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1583 esac
1584
1585 # Record target_configdirs and the configure arguments for target and
1586 # build configuration in Makefile.
1587 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1588
1589 # This is the final value for target_configdirs.  configdirs already
1590 # has its final value, as does build_modules.  It's time to create some
1591 # lists of valid targets.
1592
1593 all_build_modules=
1594 configure_build_modules=
1595 for module in ${build_modules} ; do
1596   all_build_modules=all-build-${module}
1597   configure_build_modules=configure-build-${module}
1598 done
1599
1600 # Determine whether gdb needs tk/tcl or not.
1601 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1602 # and in that case we want gdb to be built without tk.  Ugh!
1603 # In fact I believe gdb is the *only* package directly dependent on tk,
1604 # so we should be able to put the 'maybe's in unconditionally and
1605 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1606 # 100% sure that that's safe though.
1607
1608 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-tix maybe-all-libgui"
1609 case "$enable_gdbtk" in
1610   no)
1611     GDB_TK="" ;;
1612   yes)
1613     GDB_TK="${gdb_tk}" ;;
1614   *)
1615     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1616     # distro.  Eventually someone will fix this and move Insight, nee
1617     # gdbtk to a separate directory.
1618     if test -d ${srcdir}/gdb/gdbtk ; then
1619       GDB_TK="${gdb_tk}"
1620     else
1621       GDB_TK=""
1622     fi
1623     ;;
1624 esac
1625
1626 # Create the 'maybe dependencies'.  This uses a temporary file.
1627
1628 # While at that, we remove Makefiles if we were started for recursive
1629 # configuration, so that the top-level Makefile reconfigures them,
1630 # like we used to do when configure itself was recursive.
1631 rm -f maybedep.tmp
1632 echo '# maybedep.tmp' > maybedep.tmp
1633
1634 # Make-targets which may need maybe dependencies.
1635 mts="configure all install check clean distclean dvi info install-info"
1636 mts="${mts} installcheck mostlyclean maintainer-clean TAGS"
1637
1638 # Loop over modules and make-targets.
1639 for module in ${build_modules} ; do
1640   if test -z "${no_recursion}" \
1641      && test -f ${build_subdir}/${module}/Makefile; then
1642     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1643     rm -f ${build_subdir}/${module}/Makefile
1644   fi
1645   for mt in ${mts} ; do
1646     case ${mt} in
1647       install) ;; # No installing build modules.
1648       *) echo "maybe-${mt}-build-${module}: ${mt}-build-${module}" >> maybedep.tmp ;;
1649     esac
1650   done
1651 done
1652 for module in ${configdirs} ; do
1653   if test -z "${no_recursion}" \
1654      && test -f ${module}/Makefile; then
1655     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1656     rm -f ${module}/Makefile
1657   fi
1658   for mt in ${mts} ; do
1659     echo "maybe-${mt}-${module}: ${mt}-${module}" >> maybedep.tmp
1660   done
1661 done
1662 for module in ${target_configdirs} ; do
1663   if test -z "${no_recursion}" \
1664      && test -f ${target_subdir}/${module}/Makefile; then
1665     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1666     rm -f ${target_subdir}/${module}/Makefile
1667   fi
1668   for mt in ${mts} ; do
1669     echo "maybe-${mt}-target-${module}: ${mt}-target-${module}" >> maybedep.tmp
1670   done
1671 done
1672 maybe_dependencies=maybedep.tmp
1673 AC_SUBST_FILE(maybe_dependencies)
1674
1675 # Create the serialization dependencies.  This uses a temporary file.
1676
1677 AC_ARG_ENABLE([serial-configure],
1678 [  --enable-serial-[{host,target,build}-]configure
1679                           Force sequential configuration of
1680                           sub-packages for the host, target or build
1681                           machine, or all sub-packages])
1682
1683 case ${enable_serial_configure} in
1684   yes)
1685     enable_serial_build_configure=yes
1686     enable_serial_host_configure=yes
1687     enable_serial_target_configure=yes
1688     ;;
1689 esac
1690
1691 # These force 'configure's to be done one at a time, to avoid problems
1692 # with contention over a shared config.cache.
1693 rm -f serdep.tmp
1694 echo '# serdep.tmp' > serdep.tmp
1695 olditem=
1696 test "x${enable_serial_build_configure}" = xyes &&
1697 for item in ${build_configdirs} ; do
1698   case ${olditem} in
1699     "") ;;
1700     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1701   esac
1702   olditem=${item}
1703 done
1704 olditem=
1705 test "x${enable_serial_host_configure}" = xyes &&
1706 for item in ${configdirs} ; do
1707   case ${olditem} in
1708     "") ;;
1709     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1710   esac
1711   olditem=${item}
1712 done
1713 olditem=
1714 test "x${enable_serial_target_configure}" = xyes &&
1715 for item in ${target_configdirs} ; do
1716   case ${olditem} in
1717     "") ;;
1718     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1719   esac
1720   olditem=${item}
1721 done
1722 serialization_dependencies=serdep.tmp
1723 AC_SUBST_FILE(serialization_dependencies)
1724
1725 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1726 # target and nonopt.  These are the ones we might not want to pass
1727 # down to subconfigures.  Also strip program-prefix, program-suffix,
1728 # and program-transform-name, so that we can pass down a consistent
1729 # program-transform-name.  If autoconf has put single quotes around
1730 # any of these arguments (because they contain shell metacharacters)
1731 # then this will fail; in practice this only happens for
1732 # --program-transform-name, so be sure to override --program-transform-name
1733 # at the end of the argument list.
1734 # These will be expanded by make, so quote '$'.
1735 cat <<\EOF_SED > conftestsed
1736 s/ --no[[^ ]]*/ /g
1737 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1738 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1739 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1740 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1741 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1742 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1743 s/ -cache-file[[= ]][[^ ]]*//g
1744 s/ -srcdir[[= ]][[^ ]]*//g
1745 s/ -host[[= ]][[^ ]]*//g
1746 s/ -build[[= ]][[^ ]]*//g
1747 s/ -target[[= ]][[^ ]]*//g
1748 s/ -program-prefix[[= ]][[^ ]]*//g
1749 s/ -program-suffix[[= ]][[^ ]]*//g
1750 s/ -program-transform-name[[= ]][[^ ]]*//g
1751 s/ [[^' -][^ ]*] / /
1752 s/^ *//;s/ *$//
1753 s,\$,$$,g
1754 EOF_SED
1755 sed -f conftestsed <<EOF_SED > conftestsed.out
1756  ${ac_configure_args}
1757 EOF_SED
1758 baseargs=`cat conftestsed.out`
1759 rm -f conftestsed conftestsed.out
1760
1761 # Add in --program-transform-name, after --program-prefix and
1762 # --program-suffix have been applied to it.  Autoconf has already
1763 # doubled dollar signs and backslashes in program_transform_name; we want
1764 # the backslashes un-doubled, and then the entire thing wrapped in single
1765 # quotes, because this will be expanded first by make and then by the shell.
1766 # Also, because we want to override the logic in subdir configure scripts to
1767 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1768 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1769 ${program_transform_name}
1770 EOF_SED
1771 gcc_transform_name=`cat conftestsed.out`
1772 rm -f conftestsed.out
1773 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1774
1775 # For the build-side libraries, we just need to pretend we're native,
1776 # and not use the same cache file.  Multilibs are neither needed nor
1777 # desired.
1778 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} ${baseargs}"
1779
1780 # For host modules, accept cache file option, or specification as blank.
1781 case "${cache_file}" in
1782 "") # empty
1783   cache_file_option="" ;;
1784 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1785   cache_file_option="--cache-file=${cache_file}" ;;
1786 *) # relative path
1787   cache_file_option="--cache-file=../${cache_file}" ;;
1788 esac
1789
1790 # Host dirs don't like to share a cache file either, horribly enough.
1791 # This seems to be due to autoconf 2.5x stupidity.
1792 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1793
1794 target_configargs=${baseargs}
1795
1796 # Passing a --with-cross-host argument lets the target libraries know
1797 # whether they are being built with a cross-compiler or being built
1798 # native.  However, it would be better to use other mechanisms to make the
1799 # sorts of decisions they want to make on this basis.  Please consider
1800 # this option to be deprecated.  FIXME.
1801 if test x${is_cross_compiler} = xyes ; then
1802   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1803 fi
1804
1805 # Default to --enable-multilib.
1806 if test x${enable_multilib} = x ; then
1807   target_configargs="--enable-multilib ${target_configargs}"
1808 fi
1809
1810 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1811 # changed from the earlier setting of with_newlib.
1812 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1813   target_configargs="--with-newlib ${target_configargs}"
1814 fi
1815
1816 # Different target subdirs use different values of certain variables
1817 # (notably CXX).  Worse, multilibs use *lots* of different values.
1818 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1819 # it doesn't automatically accept command-line overrides of them.
1820 # This means it's not safe for target subdirs to share a cache file,
1821 # which is disgusting, but there you have it.  Hopefully this can be
1822 # fixed in future.  It's still worthwhile to use a cache file for each
1823 # directory.  I think.
1824
1825 # Pass the appropriate --host, --build, and --cache-file arguments.
1826 target_configargs="--cache-file=./config.cache --host=${target_alias} --build=${build_alias} ${target_configargs}"
1827
1828 # provide a proper gxx_include_dir.
1829 # Note, if you change the default, make sure to fix both here and in
1830 # the gcc and libstdc++-v3 subdirectories.
1831 # Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
1832 case "${with_gxx_include_dir}" in
1833   yes)
1834     AC_MSG_ERROR([--with-gxx-include-dir=[[dir]] requires a directory])
1835     ;;
1836   no | "")
1837     case "${enable_version_specific_runtime_libs}" in
1838       yes) gxx_include_dir='${libsubdir}/include/c++' ;;
1839       *)
1840         . ${srcdir}/config.if
1841         gxx_include_dir='${prefix}/include/'${libstdcxx_incdir} ;;
1842     esac ;;
1843   *) gxx_include_dir=${with_gxx_include_dir} ;;
1844 esac
1845
1846 FLAGS_FOR_TARGET=
1847 case " $target_configdirs " in
1848  *" newlib "*)
1849   case " $target_configargs " in
1850   *" --with-newlib "*)
1851    case "$target" in
1852    *-cygwin*)
1853      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 $$s/winsup/w32api/include' ;;
1854    esac
1855
1856    # If we're not building GCC, don't discard standard headers.
1857    if test -d ${srcdir}/gcc; then
1858      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1859
1860      if test "${build}" != "${host}"; then
1861        # On Canadian crosses, CC_FOR_TARGET will have already been set
1862        # by `configure', so we won't have an opportunity to add -Bgcc/
1863        # to it.  This is right: we don't want to search that directory
1864        # for binaries, but we want the header files in there, so add
1865        # them explicitly.
1866        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
1867
1868        # Someone might think of using the pre-installed headers on
1869        # Canadian crosses, in case the installed compiler is not fully
1870        # compatible with the compiler being built.  In this case, it
1871        # would be better to flag an error than risking having
1872        # incompatible object files being constructed.  We can't
1873        # guarantee that an error will be flagged, but let's hope the
1874        # compiler will do it, when presented with incompatible header
1875        # files.
1876      fi
1877    fi
1878
1879    case "${target}-${is_cross_compiler}" in
1880    i[[3456789]]86-*-linux*-no)
1881       # Here host == target, so we don't need to build gcc,
1882       # so we don't want to discard standard headers.
1883       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
1884       ;;
1885    *)
1886       # If we're building newlib, use its generic headers last, but search
1887       # for any libc-related directories first (so make it the last -B
1888       # switch).
1889       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1890       ;;
1891    esac
1892    ;;
1893   esac
1894   ;;
1895 esac
1896
1897 # Allow the user to override the flags for
1898 # our build compiler if desired.
1899 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
1900
1901 # On Canadian crosses, we'll be searching the right directories for
1902 # the previously-installed cross compiler, so don't bother to add
1903 # flags for directories within the install tree of the compiler
1904 # being built; programs in there won't even run.
1905 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
1906   # Search for pre-installed headers if nothing else fits.
1907   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
1908 fi
1909
1910 if test "x${use_gnu_ld}" = x &&
1911    echo " ${configdirs} " | grep " ld " > /dev/null ; then
1912   # Arrange for us to find uninstalled linker scripts.
1913   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
1914 fi
1915
1916 if test "x${CC_FOR_TARGET+set}" = xset; then
1917   :
1918 elif test -d ${srcdir}/gcc; then
1919   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
1920 elif test "$host" = "$target"; then
1921   CC_FOR_TARGET='$(CC)'
1922 else
1923   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
1924 fi
1925 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
1926
1927 if test "x${GCJ_FOR_TARGET+set}" = xset; then
1928   :
1929 elif test -d ${srcdir}/gcc; then
1930   GCJ_FOR_TARGET='$$r/gcc/gcj -B$$r/gcc/'
1931 elif test "$host" = "$target"; then
1932   GCJ_FOR_TARGET='gcj'
1933 else
1934   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
1935 fi
1936 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
1937
1938 # Don't use libstdc++-v3's flags to configure/build itself.
1939 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'
1940 raw_libstdcxx_flags='-L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
1941
1942 if test "x${CXX_FOR_TARGET+set}" = xset; then
1943   if test "x${RAW_CXX_FOR_TARGET+set}" != xset; then
1944     RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
1945   fi
1946 elif test -d ${srcdir}/gcc; then
1947   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
1948   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
1949   # default whereas gcc does not.
1950   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
1951   # all other cases.
1952   CXX_FOR_TARGET='$$r/gcc/g++ -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
1953   RAW_CXX_FOR_TARGET='$$r/gcc/xgcc -shared-libgcc -B$$r/gcc/ -nostdinc++ '$raw_libstdcxx_flags
1954 elif test "$host" = "$target"; then
1955   CXX_FOR_TARGET='$(CXX)'
1956   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
1957 else
1958   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
1959   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
1960 fi
1961 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
1962 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
1963
1964 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
1965 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
1966
1967 # We want to defer the evaluation of `cmd`s and shell variables in
1968 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
1969 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
1970 # quotes, but we still have to duplicate `$'s so that shell variables
1971 # can be expanded by the nested make as shell variables, not as make
1972 # macros.
1973 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
1974 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
1975
1976 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
1977 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
1978 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
1979 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
1980 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
1981 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
1982 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
1983
1984 # Makefile fragments.
1985 host_makefile_frag=${srcdir}/${host_makefile_frag}
1986 target_makefile_frag=${srcdir}/${target_makefile_frag}
1987 alphaieee_frag=${srcdir}/${alphaieee_frag}
1988 ospace_frag=${srcdir}/${ospace_frag}
1989 AC_SUBST_FILE(host_makefile_frag)
1990 AC_SUBST_FILE(target_makefile_frag)
1991 AC_SUBST_FILE(alphaieee_frag)
1992 AC_SUBST_FILE(ospace_frag)
1993
1994 # Miscellanea: directories, flags, etc.
1995 AC_SUBST(SET_LIB_PATH)
1996 AC_SUBST(RPATH_ENVVAR)
1997 AC_SUBST(BUILD_PREFIX)
1998 AC_SUBST(BUILD_PREFIX_1)
1999 AC_SUBST(gcc_version_trigger)
2000 AC_SUBST(gcc_version)
2001 AC_SUBST(tooldir)
2002 AC_SUBST(build_tooldir)
2003 AC_SUBST(GDB_TK)
2004 AC_SUBST(gxx_include_dir)
2005 AC_SUBST(libstdcxx_incdir)
2006
2007 # Build module lists & subconfigure args.
2008 AC_SUBST(build_configargs)
2009 AC_SUBST(configure_build_modules)
2010 AC_SUBST(all_build_modules)
2011
2012 # Host module lists & subconfigure args.
2013 AC_SUBST(host_configargs)
2014 AC_SUBST(configdirs)
2015
2016 # Target module lists & subconfigure args.
2017 AC_SUBST(target_configargs)
2018 AC_SUBST(target_configdirs)
2019
2020 # Build tools.
2021 AC_SUBST(BISON)
2022 AC_SUBST(CC_FOR_BUILD)
2023 AC_SUBST(LEX)
2024 AC_SUBST(MAKEINFO)
2025 AC_SUBST(YACC)
2026 AC_SUBST(config_shell)
2027
2028 # Host tools.
2029 NCN_STRICT_CHECK_TOOL(AR, ar)
2030 NCN_STRICT_CHECK_TOOL(AS, as)
2031 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2032 NCN_STRICT_CHECK_TOOL(LD, ld)
2033 NCN_STRICT_CHECK_TOOL(NM, nm)
2034 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2035 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2036 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2037 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2038 AC_SUBST(CC)
2039 AC_SUBST(CXX)
2040 AC_SUBST(CFLAGS)
2041 AC_SUBST(CFLAGS_FOR_BUILD)
2042 AC_SUBST(CXXFLAGS)
2043 AC_SUBST(DEFAULT_YACC)
2044 AC_SUBST(DEFAULT_LEX)
2045 AC_SUBST(DEFAULT_M4)
2046
2047 # Target tools.
2048 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AR_FOR_TARGET, ar)
2049 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AS_FOR_TARGET, as)
2050 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_DLLTOOL_FOR_TARGET, dlltool)
2051 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_LD_FOR_TARGET, ld)
2052 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_NM_FOR_TARGET, nm)
2053 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_RANLIB_FOR_TARGET, ranlib, :)
2054 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_WINDRES_FOR_TARGET, windres)
2055
2056 AC_SUBST(GCC_FOR_TARGET)
2057 AC_SUBST(FLAGS_FOR_TARGET)
2058 AC_SUBST(CC_FOR_TARGET)
2059 AC_SUBST(GCJ_FOR_TARGET)
2060 AC_SUBST(CXX_FOR_TARGET)
2061 AC_SUBST(RAW_CXX_FOR_TARGET)
2062 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2063 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2064
2065 # Fix up target tools.
2066 if test "x${build}" = "x${host}" ; then
2067   # In this case, the newly built tools can and should be used,
2068   # so we override the results of the autoconf tests.
2069   # This should really only happen when the tools are actually being built,
2070   # but that's a further refinement.  The new build scheme, where
2071   # tools are built into a structure paralleling where they're installed,
2072   # should also eliminate all of this cleanly.
2073   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2074   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2075   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2076   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2077   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2078   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2079   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2080 else
2081   # Just use the ones we found.
2082   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2083   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2084   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2085   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2086   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2087   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2088   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2089 fi
2090 AC_SUBST(AR_FOR_TARGET)
2091 AC_SUBST(AS_FOR_TARGET)
2092 AC_SUBST(DLLTOOL_FOR_TARGET)
2093 AC_SUBST(LD_FOR_TARGET)
2094 AC_SUBST(NM_FOR_TARGET)
2095 AC_SUBST(RANLIB_FOR_TARGET)
2096 AC_SUBST(WINDRES_FOR_TARGET)
2097
2098 # Certain tools may need extra flags.
2099 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2100 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2101 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2102
2103 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2104 AC_ARG_ENABLE(maintainer-mode,
2105 [  --enable-maintainer-mode enable make rules and dependencies not useful
2106                           (and sometimes confusing) to the casual installer],
2107       USE_MAINTAINER_MODE=$enableval,
2108       USE_MAINTAINER_MODE=no)
2109 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2110 AC_SUBST(MAINTAINER_MODE_TRUE)
2111 AC_SUBST(MAINTAINER_MODE_FALSE)
2112 if test "$USE_MAINTAINER_MODE" = yes; then
2113   MAINTAINER_MODE_TRUE=
2114   MAINTAINER_MODE_FALSE='#'
2115 else
2116   MAINTAINER_MODE_TRUE='#'
2117   MAINTAINER_MODE_FALSE=
2118 fi
2119 MAINT=$MAINTAINER_MODE_TRUE
2120 AC_SUBST(MAINT)dnl
2121
2122 # ---------------------
2123 # GCC bootstrap support
2124 # ---------------------
2125
2126 # Stage specific cflags for build.
2127 stage1_cflags="-g"
2128 case $build in
2129   vax-*-*)
2130     case ${GCC} in
2131       yes) stage1_cflags="-g -Wa,-J" ;;
2132       *) stage1_cflags="-g -J" ;;
2133     esac ;;
2134   powerpc-*-darwin*)
2135     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2136     # sources; use -no-cpp-precomp to get to GNU cpp.
2137     # Apple's GCC has bugs in designated initializer handling, so disable
2138     # that too.
2139     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2140     ;;
2141 esac
2142 AC_SUBST(stage1_cflags)
2143
2144 # Enable -Werror in bootstrap stage2 and later.
2145 # Change the default to "no" on release branches.
2146 AC_ARG_ENABLE(werror,
2147 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2148 [enable_werror=yes])
2149 case ${enable_werror} in
2150   yes) stage2_werror_flag="--enable-werror-always" ;;
2151   *) stage2_werror_flag="" ;;
2152 esac
2153 AC_SUBST(stage2_werror_flag)
2154
2155 AC_OUTPUT(Makefile)