Alex Jacobson wrote:
I'm fine with that as well. I'm just opposed to being force to look up the precise names the compiler happens to use for each language extension I happen to use. Having -fglasgow-exts turned on by default also works.
-fglasgow-exts is a historical relic. It's just an arbitrary collection of extensions. It doesn't contain all the extensions provided by GHC, as many of them steal syntax and you probably don't want them all on at the same time. We're trying to move away from -fglasgow-exts, which is why GHC 6.8.1 provides separate flags for all the extensions we provide. Eventually we'll have a new standard (Haskell' or whatever) that will collect many of the extensions together, so you'll just have to write {-# LANGUAGE Haskell' #-}. Cheers, Simon