On Tue, Oct 23, 2007 at 09:10:02AM -0400, Isaac Dupree wrote:
Galchin Vasili wrote:
In discussing this OS Abstraction Layer, I think I am thinking of some notion of "laziness" (read ... decisions made at run-time .. not compile-time .. otherwise I think we have to resort to ifdefs which are not so nice and require a lot of code maintenance.)
It is difficult on existing systems to make a binary that can link with multiple alternate sets C functions. Also you may need the corresponding header-files when compiling. (But non-binary implementations such as Yhc might be able to lazily only look up a foreign-imported function once it's called, it perhaps being _|_ if not found). I can't speak to how much there are code maintenance issues of ifdefs... but if you don't have a Windows system to test against, for example, then you'll *never* know if Windows-specific parts of your code work, ifdefs or not.
You would, at least, know that the Windows-specific Haskell bindings themselves compile. I don't think this is worth the ugliness, but it is something anyhow. -- David Roundy Department of Physics Oregon State University