patch applied (cabal): Detect intra-package build-depends

[Duncan Coutts]

Sat May 30 13:44:47 PDT 2009  Duncan Coutts <duncan at haskell.org>
  * Detect intra-package build-depends
  Based on an original patch by Stephen Blackheath
  With this change build-depends on a library within the same package
  are detected. Such deps are not full handled yet so for the moment
  they are explicitly banned, however this is another step towards
  actually supporting such dependencies. In particular deps on
  internal libs are resolved to the internal one in preference to any
  existing external version of the same lib.

    M ./Distribution/Simple/Configure.hs -15 +73
    M ./Distribution/Simple/LocalBuildInfo.hs +6

View patch online:
http://darcs.haskell.org/cabal/_darcs/patches/20090530204447-adfee-8b4f046f6b9e94e5ef401cced30a7599e559d777.gz