[Hackage] #737: Cabal check warns about ill-specified dependencies

Hackage cvs-ghc at haskell.org
Thu Sep 9 12:20:16 EDT 2010

#737: Cabal check warns about ill-specified dependencies
  Reporter:  guest          |        Owner:         
      Type:  enhancement    |       Status:  new    
  Priority:  normal         |    Milestone:         
 Component:  Cabal library  |      Version:
  Severity:  normal         |     Keywords:         
Difficulty:  unknown        |   Ghcversion:         
  Platform:                 |  
 Packages that get listed here:

 Get special treatment from cabal-install.  It would help package authors
 if 'cabal check' could warn about version ranges, especially for packages
 listed in the preferred-version file.

 For example, if the .cabal file just mentions package FOO and preferred-
 versions asks for FOO < X, then the author might not be aware that some
 people might expect to use FOO >= X.  It would be nice to let the author
 know that they need to say, FOO == Y.* or FOO > A && FOO < B.

 This is particularly important for base, where lacking an upper bound
 leads to bad build behavior.

 This should probably be implemented in the Cabal library.

Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/737>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects

More information about the cabal-devel mailing list