[Haskell-cafe] Conditional compilation for different versions of GHC?

Antoine Latter aslatter at gmail.com
Sat Nov 27 20:41:39 CET 2010

On Sat, Nov 27, 2010 at 10:59 AM, Jinjing Wang <nfjinjing at gmail.com> wrote:
> Dear list,
> >From ghc 7.0.1 release notes:
>> The Language.Haskell.TH.Quote.QuasiQuoter type has two new fields: quoteType and quoteDec.
> Some of my code needs to be conditionally compiled to support both
> version 6 and 7, what is the recommended way to do it?
> ref:
> * http://new-www.haskell.org/ghc/docs/7.0.1/html/users_guide/release-7-0-1.html

Can you just not set those fields? Then the code should work as-is for
both versions. You'll get warnings for GHC 7, I think.


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