Alastair Reid reid@cs.utah.edu writes:

The following program (from the testsuite) is not legal Haskell'98 but is accepted by Hugs. The error is that you can't use the qualifier M inside M (at least, not without first explicitly importing M).

tests/static/mod75.hs: --!!! Qualifying with local module name module M where f x = M.f x

That's legal Haskell 98 and should be accepted; see Section 5.5.1 of the Report; bullet 1. --sigbjorn