Allow selecting 'latest' snapshot, as well as 'specific' date snapshot for glibc.
Update uClibc config to commonalise some help.

/trunk/scripts/build/libc_glibc.sh | 22 20 2 0 ++++++++++++++++++++--
/trunk/config/libc/glibc.in | 12 12 0 0 ++++++++++++
/trunk/config/libc/uClibc.in | 12 4 8 0 ++++--------
/trunk/config/libc.in | 13 13 0 0 +++++++++++++
4 files changed, 49 insertions(+), 10 deletions(-)

# Compute IA-64-specific values

CT_DoArchValues() {

    # 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

}