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(-)

 # powerpc specific configuration file

 config ARCH_powerpc

     select ARCH_SUPPORT_ABI

     select ARCH_SUPPORT_CPU

     select ARCH_SUPPORT_TUNE

     help

       The PowerPC architecture, as defined by:

         http://www.ibm.com/developerworks/eserver/articles/archguide.html