patch applied (packages/Cabal): Add more detail to the -Werror and -fvia-C checks

[Ian Lynagh]

Tue Sep  2 10:14:13 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * Add more detail to the -Werror and -fvia-C checks
  Also, ban rather than just warn about the -optl-Wl,-s hack
  now that Cabal strips exes by default.

    M ./Distribution/PackageDescription/Check.hs -5 +10

View patch online:
http://darcs.haskell.org/packages/Cabal/_darcs/patches/20080902171413-adfee-759c3ac0c2b866bce5fd806ea42fecf0cdf7e39d.gz