patch applied (packages/Cabal): PackageDescription.hs: add check for existence of license file

[Ian Lynagh]

Sat Jan 26 19:10:33 PST 2008  Brent Yorgey <byorgey at gmail.com>
  * PackageDescription.hs: add check for existence of license file
  Added a check for the existence of the license file (if one is
  specified in a license-file: field) during description file
  sanity checking.  If a license is specified but does not exist,
  a warning is generated.  This patch resolves issue #180.

    M ./Distribution/PackageDescription.hs -4 +18

View patch online:
http://darcs.haskell.org/packages/Cabal/_darcs/patches/20080127031033-bd4d7-a3f21fdaa0d4fd1b29145320e63294942956e17a.gz