On Tue, 4 Mar 2008, Magnus Therning wrote:
I'm putting together a package consisting of 2 executables. Only one of them is pure Haskell and thus buildable on all platforms, the other relies on Windows API calls and can only be built on that platform. I found the âif os(...)â conditional in the CABAL docs but I'm having problems getting it to do what I want.
if os(mingw32) executable foo ...
Results in the error âSection expectedâ. Swapping the two lines like this
executable foo if os(mingw32) ...
results in âSetup.hs: Error: No 'Main-Is' field found for executable fooâ.
It sounds like another instance of the case that parts of a package cannot be build under some circumstances. Keep in mind that other packages might rely on the installed second executable if they find that the package is installed. Thus, I guess it's better to extract the second executable to a different package for Window's only stuff.