Thu Dec 20 08:43:07 PST 2007 [EMAIL PROTECTED]
* Fix nasty recompilation bug in MkIface.computeChangedOccs
MERGE to 6.8 branch
In computeChangedOccs we look up the old version of a Name.
But a WiredIn Name doesn't have an old version, because WiredIn things
don't appear in interface files at all.
Result: ghc-6.9: panic! (the 'impossible' happened)
(GHC version 6.9 for x86_64-unknown-linux):
lookupVers1 base:GHC.Prim chr#{v}
This fixes the problem. The patch should merge easily onto the branch.
M ./compiler/iface/MkIface.lhs +2
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