[project @ 2005-07-21 11:05:26 by simonpj]

[project @ 2005-07-21 11:05:26 by simonpj]
Arrange that a 'deriving' clause works for a GADT-syntax
data type delaration, provided it declares a Haskell-98-style
data type (i.e. no existentials or GADT stuff).

This just allows you to use a different syntax for data type
declarations without losing 'deriving'. A couple of people requested
this, and it's really easy to do.