Ticket #4972 (closed bug: duplicate)
[386 of 549] Compiling Logic.Comorphism ( Logic/Comorphism.hs, Logic/Comorphism.o ) ghc: panic! (the 'impossible' happened) (GHC version 188.8.131.5210217 for x86_64-apple-darwin): initC: srt_lbl Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug make: *** [hets] Error 1
I'll see if this happens under linux, too.
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