[Haskell-cafe] Disabling warning over ranges of source lines

Using GHC, is there any way to disable warnings (entirely or selectively) during a section of source code? I ask because of some Template Haskell that periodically generates unused code and I'd rather not see the warnings or rework the macros (beyond emitting some sort of "disable" and "re-enable" pragma which probably isn't in the AST now that I think about it). Cheers, Thomas