Local variables in Template Haskell declarations

Question

I\'m reading through pozorvlak\'s baby steps post on Template Haskell in an attempt to understand it myself, and I came across this section:

Recall th

Answer 1

Looks like it's a bug with versions of GHC older than 6.12 where you can't splice in types. This bug was fixed in GHC version 7.10.1