Depend on integerGmp configure in gmpRules.
Depend on integerGmp configure in gmpRules.

See #159.

sdiehl/ghc,snowleopard/shaking-up-ghc,sdiehl/ghc,sdiehl/ghc,snowleopard/hadrian,sdiehl/ghc,sdiehl/ghc,izgzhen/hadrian,sdiehl/ghc,bgamari/shaking-up-ghc,sdiehl/ghc