I wrote:
Just for information, the HaXml darcs repo has recently adopted the solution of containing two .cabal files, one for ghc-6.6.x, and the other for the split-base packages (>=ghc-6.7).
Thomas Hartman
$ runghc Setup.hs configure Setup.hs: Multiple description files found. Please use only one of : ["HaXml.cabal","HaXml-darcs.cabal"]
is there a way to specify which cabal file should be used, or do you just have to move a file out out the way?
For now, the latter (remove the unneeded file). Ultimately, the use of "Cabal Configurations" will allow us to revert to a single .cabal file with sections conditional on the compiler version.
Understanding this better is important to me because I am installing a number of packages on 6.7, and am reluctant to send a patch that breaks backwards compabitility with earlier versions.
Multiple .cabal files are just a temporary measure for development ease. Neither ghc-6.7 nor this version of HaXml have been released officially, so you should not rely on any particular behaviour. Regards, Malcolm