GHC 7.8.4 panics while building "vty" library test suite

Linking dist/build/verify-attribute-opsStub/verify-attribute-opsStub ...
ghc: panic! (the 'impossible' happened)
  (GHC version 7.8.4 for x86_64-unknown-linux):
        Don't understand library name verify-attribute-ops

A complete build log is available at http://hydra.nixos.org/build/18786125/log/raw.

Trac metadata

Trac field	Value
Version	7.8.4
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
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