On Fri, Mar 07, 2003 at 02:35:47PM +0000, Olaf Chitil wrote: > When trying to make our Haskell tracer Hat work with Hugs (November > 2002) I noticed that > > * Hugs' implementation of hierarchical libraries differs from those > of ghc and nhc98, and > * Hugs' implementation choice makes it more restrictive than ghc/nhc98 > > A simple example: > There is module B in file B.hs > There is module Test.B in file Test/B.hs > There is module Test.A in file Test/A.hs > Module Test.A contains "import B". > > When compiling module Test.A both nhc98 and ghc imports module B from > file B.hs. In contrast, Hugs imports module Test.B from file Test/B.hs > and then stops with an error, because the module name is wrong. > > The simple reason why Hugs behaves so is that when searching a module it > *always* searches the current directory (* where the import was demanded > *) first. Only afterwards the paths set with the -P option are searched. > > [noble attempt at rationalizing Hugs's behaviour omitted]
This is a clear flaw in Hugs (long known, but hard to fix). A workaround is to add the -X option to stop it adding the extra directory. _______________________________________________ Haskell mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell
