Canonicalise CT_BUILD and CT_HOST:

- Not only will it give us full-qualified tuples, but it will also ensure
that they are valid tuples (in case of typo with user-provided tuples)
That's way better than trying to rewrite config.sub ourselves...
- use CT_BUILD_PREFIX and CT_BUILD_SUFFIX to call "gcc -dumpmachine"

/trunk/scripts/crosstool.sh | 29 7 22 0 +++++++----------------------
1 file changed, 7 insertions(+), 22 deletions(-)

 # Compute IA-64-specific values

 CT_DoArchTupleValues() {

     # The architecture part of the tuple:

     CT_TARGET_ARCH="${CT_ARCH}${target_endian_el}"

     # Override CFLAGS for endianness:

     case "${CT_ARCH_BE},${CT_ARCH_LE}" in

         y,) CT_ARCH_ENDIAN_CFLAG="-EB";;

         ,y) CT_ARCH_ENDIAN_CFLAG="-EL";;

     esac

 }