ghc-6.2 bug in type inference

[Tomasz Zielonka]

On Fri, Feb 06, 2004 at 11:13:57AM +0000, Malcolm Wallace wrote:
> 
>     *  -fglasgow-exts makes perfectly reasonable Haskell'98 code
>        invalid, throws up a totally misleading error unrelated to the
>        cause of the problem, and gives no clue as to what particular
>        extension is responsible.

That's "linear implicit parameters".
Try putting whitespace between % and s.

If you use -fglasgow-exts you have to know almost all language
extensions supported by GHC. Therefore I think that packages shouldn't
implicitly add -fglasgow-exts. It should be sufficient to place 
{-# OPTIONS -fglasgow-exts #-} pragma in modules that need these
extensions.

Best regards,
Tomek

-- 
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