HEAD: HSinteger-gmp-0.2.0.2.o: unknown symbol `base_ControlziExceptionziBase_patError_info'

[Edward Z. Yang]

Cleaning my build tree and trying again clears the segfault, and
inspecting the C-- from Integer.lhs verifies that there is no longer
any reference to patError, so I'm fairly confident my patch fixes the
problem.

Cheers,
Edward