<br><font size=2 face="sans-serif">Hello,</font>
<br>
<br><font size=2 face="sans-serif"> Have you tried using -fglasgow-exts?
That should enable all ghc extensions.</font>
<br>
<br><font size=2 face="sans-serif">-Jeff</font>
<br>
<br><tt><font size=2>haskell-cafe-bounces@haskell.org wrote on 11/06/2007
02:02:11 PM:<br>
<br>
> On Nov 6, 2007 12:15 PM, David Benbennick <dbenbenn@gmail.com>
wrote:<br>
> > In ghc 6.8.1, the error messages are more helpful:<br>
> ><br>
> > foo.hs:5:0:<br>
> > Illegal instance declaration for `MyShow String'<br>
> > (All instance types must be of the
form (T t1 ... tn)<br>
> > where T is not a synonym.<br>
> > Use -XTypeSynonymInstances
if you want to disable this.)<br>
> > In the instance declaration for `MyShow String'<br>
> <br>
> <br>
> Thanks for the tip. I might give 6.8.1 a try; I still cannot get it
to<br>
> work in 6.6.1. The problem may exist between the keyboard and the<br>
> chair.<br>
> <br>
> G<br>
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> http://www.haskell.org/mailman/listinfo/haskell-cafe<br>
</font></tt>
<br>
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