patch applied (cabal): Don't try to install libHSfoo.a if the lib had no object files

[Duncan Coutts]

Mon Aug  4 07:38:17 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * Don't try to install libHSfoo.a if the lib had no object files
  To allow meta-packages.

    M ./Distribution/Simple/GHC.hs -5 +7

View patch online:
http://darcs.haskell.org/cabal/_darcs/patches/20080804143817-adfee-c696e269fa77703a722f80fd4c9704886cc84374.gz