Hello. I apologize - this might be a novice question. I’m trying to use some structs defined in sys/socketvar.h (as published in the latest 10.11.2 darwin open source version) but my code won't build in Xcode 7 and latest 10.11 SDK, because the sys/socketvar.h header in the SDK is much shorter and lacks lots of stuff. 1. Why are the headers different? 2. Could I safely use the open-source version of this header, and expect my code to work on OS-X 10.11 in runtime? If this is part of a “bigger picture” issue, please direct me to the proper reading. Thanks. Motti Shneor _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app... This email sent to site_archiver@lists.apple.com