I'm not an Objective-C developer but it looks like modgenerator is a code generation tool that (among other things) generates helper methods. Apple used this in

I'm not an Objective-C developer but it looks like modgenerator is a code generation tool that (among other things) generates helper methods. Apple used this in one of their own frameworks, which is completely within the license, but the helper methods ended up on a blacklist for apps submitted to the app store. Using APIs on the blacklist apparently won't guarantee that an app gets rejected (if I've learned anything from HN it's that iOS App Store rejections are notoriously inconsistent). The author of this article (and modgenerator) is (perhaps facetiously) considering changing the license so that Apple can't use it in order that they generate other accessors which are not blacklisted. (Again, this is all my non-Objective-C-developer understanding, so corrections are appreciated)