Re: How to use #ifdef WIN32

On Thursday 20 December 2007 18:37:15 Jim Burton wrote:

I want to switch code on the OS but this always goes through to the #else (on windows or elsewhere):

{-# OPTIONS -cpp #-} #ifdef WIN32 main = putStrLn "hello windows" #else main = putStrLn "hello something else" #endif

Does this depend on a Makefile setting WIN32, or should there be something predefined?

Thanks,

If you're using Cabal, something like this should work: if os(win32) cpp-options: -DWIN32 Cheers, Spencer Janssen