RE: patch applied (packages/regex-base): Make setupscriptcompileagain after recent Cabal changes

| - Ross pointed out that packages can't simply re-export modules, | so the straightforward solution of a package without sources, | just with a .cabal file, seems barred for the moment (though i | don't understand why this restriction is there, so perhaps i am | asking for an extension?) Yes this is undoubtedly a bug, in Cabal or GHC or (probably) both. Of *course* a package should be able to re-export a module from another package, just as a module can re-export a function imported from another module. I don't think there is any difficulty in principle; it just needs to be implemented. Simon