Hello, On Mon, May 27, 2013 at 01:01:48PM +0000, Simon Peyton-Jones wrote:
Oh bother. I have no idea. If anyone feels able to bisect their way to the culprit, that would be good.
There seems to be multiple culprits: Between http://darcs.haskell.org/ghcBuilder/builders/tn23/751 and http://darcs.haskell.org/ghcBuilder/builders/tn23/752 shift/reduce conflicts went from 43 to 45. A likely candidate is df04d2d875f4f17b04cd8bd396b62b1eadd932e8 Allow '-' to be used as an infix type constructor. Between http://darcs.haskell.org/ghcBuilder/builders/tn23/788 and http://darcs.haskell.org/ghcBuilder/builders/tn23/789 shift/reduce conflicts went to 47 with 8366792eede3c8eb486ff15d8c8e62e9363f1959 Implement overlapping type family instances. a likely candidate. Finally, between http://darcs.haskell.org/ghcBuilder/builders/tn23/806 and (there is no data for build 807) http://darcs.haskell.org/ghcBuilder/builders/tn23/808 shift/reduce conflicts went to 49 with deec5b74dee7f676b8a9f840ec7b5a813e7e0956 Be willing to parse {-# UNPACK #-} without '!' a likely candidate.
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Best regards Thorkil