Hi, On Sun, 5 Apr 2020 20:29:40 +0200 Danny Milosavljevic wrote: > Does > > ENABLE_STRICT=NO > > instead of mediastreamer-msfactory.patch work or not? Yes. So added mediastreamer2 without any patches to guix master as commit b6b3a6a6c4f00815da576912907c7bdbf02ca11a. If the patches are required after all (for example the srtp2 one--is it correct that this one updates the dependency from srtp1 to srtp2?), we can still add them. I've also renamed the package to mediastreamer2 like upstream does (I don't like the name so much--but upstream chose it, so be it).