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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [boehm-gc/] [configure.host] - Rev 833

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# configure.host

# This shell script handles all host based configuration for the garbage
# collector.
# It sets various shell variables based on the the host and the
# configuration options.  You can modify this shell script without
# needing to rerun autoconf.

# This shell script should be invoked as
#   . configure.host
# If it encounters an error, it will exit with a message.

# It uses the following shell variables:
#   host                The configuration host
#   host_cpu            The configuration host CPU
#   target_optspace     --enable-target-optspace ("yes", "no", "")
#   GCC                 should be "yes" if using gcc

# It sets the following shell variables:
#   gc_cflags   Special CFLAGS to use when building
#   gc_use_mmap  Set to "yes" on platforms where mmap should be used instead
#                of sbrk. This will define USE_MMAP.

gc_cflags=""
gc_use_mmap=

# We should set -fexceptions if we are using gcc and might be used
# inside something like gcj.  This is the zeroth approximation:
if test :"$GCC": = :yes: ; then
    gc_cflags="${gc_cflags} -fexceptions"
else
    case "$host" in 
        hppa*-*-hpux* )
        if test :$GCC: != :"yes": ; then
            gc_cflags="${gc_flags} +ESdbgasm"
        fi
        # :TODO: actaully we should check using Autoconf if
        #     the compiler supports this option.
        ;;
    esac
fi

case "${host}" in
  *-linux*)
    gc_use_mmap=yes
    ;;
esac

case "${target_optspace}:${host}" in
  yes:*)
    gc_cflags="${gc_cflags} -Os"
    ;;
  :m32r-* | :d10v-* | :d30v-*)
    gc_cflags="${gc_cflags} -Os"
    ;;
  no:* | :*)
    # Nothing.
    ;;
esac

# Set any host dependent compiler flags.
# THIS TABLE IS SORTED.  KEEP IT THAT WAY.

case "${host}" in
  mips-tx39-*|mipstx39-unknown-*)
        gc_cflags="${gc_cflags} -G 0"
        ;;
  *)
        ;;
esac

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