patch applied (ghc-6.6/packages/Cabal): Be cleverer about guessing hc-pkg name and location.

[Duncan Coutts]

Wed Aug 23 03:54:12 PDT 2006  Duncan Coutts <duncan.coutts at worc.ox.ac.uk>
  * Be cleverer about guessing hc-pkg name and location.
  So it now works if you say:
  ./setup configure --with-compiler=ghc-6.5
  ie specifying a path-relative name rather than an absolute path.
  We then look for hc-pkg in the same dir as where we found the compiler.
  If the compiler appears to have a version suffix then we additionally
  and preferentially look for hc-pkg with that same version suffix.
  (I'm not sure that bit works if you've got a .exe suffix, perhaps a
  windows person could try it / take a look)

    M ./Distribution/Simple/Configure.hs -12 +26