TypeCompose Patch

[Marc Weber]

On Wed, Sep 24, 2008 at 02:55:01PM -0700, Conal Elliott wrote:
>    Eep!  That code (which uses type classes) fails to compile under 6.8.3 but
>    does compile under 6.9.  Looks like 6.10 broke something.
> 
>    Can anyone else check whether vector-space build or breaks under 6.10?
>    The repo is
> 
>        [1]http://code.haskell.org/vector-space/

src/Data/LinearMap.hs|37 col 21 error| 
||     Couldn't match expected type `t' against inferred type `Basis u'
||     In the second argument of `(.)', namely `basisValue'
||     In the first argument of `trie', namely `(f . basisValue)'
||     In the expression: trie (f . basisValue)

Hi Conal, I'm getting the error above (current ghc from darcs)
If you want I can give you an ssh account where this ghc version is
installed within the next days.

I also had to add a -fglasgow-exts to a MemoTrie file..
(Not sure which is the correct language extension which was missing)

Sincerly
Marc Weber