Introduce using a LAN mirror for retrieving tarballs.

/trunk/scripts/functions | 40 36 4 0 ++++++++++++-
/trunk/config/global/download.in | 146 115 31 0 ++++++++++++++++++++++++++++++++++++----------
2 files changed, 151 insertions(+), 35 deletions(-)

 # Compute IA-64-specific values

 CT_DoArchValues() {

     # The architecture part of the tuple:

     CT_TARGET_ARCH="${CT_ARCH}"

 }