I've read a book introducing the Objective-c language,which mentioned that it's possible to setup the programming environment in window N5.x by installing cygwin and GNUStep. But it doesn't explain how to do so. And I tried failed. I don't know how to let cygwin and GNUStep work together, even not sure which verion of GNUStep is a MUST. Does anybody here know it? Pls tell me, thank you!