Re: [Haskell-cafe] Accepted by Hugs, not by GHC

19 May 2007


      On Sat, 2007-05-19 at 15:30 +0100, David House wrote:
...
On 19/05/07, Hans van Thiel  wrote:
...
causes no problems in Hugs (-98 flag) but compiling with GHC produces:
There's the solution to your problem: type synonym instances aren't
Haskell98, so you have to pass the -98 flag ('turn on extensions') to
Hugs in order for it to work. The corresponding GHC flag is
-fglasgow-exts. Try that.
Works like a charm! Many thanks,
Hans
...