Hi, I'd like to add the (OpenBSD only) pledge(2) call to some library in our (OpenBSD's) ghc port. See http://www.openbsd.org/cgi-bin/man.cgi/OpenBSD-current/man2/pledge.2?query=p... and http://www.openbsd.org/papers/hackfest2015-pledge/index.html for some information of what this is about (and Linux people, please don't feel too offended by that second one ;-)) I'd to this as a patch to ghc in our port, but I'd like to eventually submit a patch to include it (conditionally, only on OpenBSD for now) upstream. But I need some hints *where* to include it. At the moment, I'm considering the unix package (bundled with ghc), and therein, the module System.Posix.Unistd. Even if pledge(2) obviously isn't Posix, it's all about stripping down an API which in large parts conforms to Posix to some subset. Would this be acceptable? Or should I use something like System.OpenBSD.Unistd? In any case, client application using it would always either need some #ifdef or would get patches local to the OpenBSD ports tree. So, any thoughts about this? Please note: just writing a separate package for this wouldn't help much (for OpenBSD ports), because it would require changing cabal dependencies for every client application in addition to other source code patches. Ciao, Kili