At 2001-05-08 03:07, Markus Lauer wrote: >Hugs sais ERROR Test.hs:20 - syntax error in instance head (constructor > expected) Invoke as 'hugs -98' to switch on extensions. Hugs will then complain of overlapping instances: instance FooList Char instance Foo a => FooList a Yes, I know Char is not an instance of Foo. See the "Anomalous Class Fundep Inference" thread. -- Ashley Yakeley, Seattle WA