We seem to have issues getting libyang on FreeBSD 9.x working FreeBSD 9.x is EOL since End of December 2016 So here is a last call: —> If you are using FreeBSD 9.x with FRR, then please speak up. Otherwise FRR 6.0 might be the last version of FRR for it. Regards, Martin Winter (FreeBSD 10.x and 11.x are not affected - ONLY FreeBSD 9.x) Sidenote: CentOS 6 issue as mentioned before was resolved and we can continue to support it (for now). But it is one of the challenging OLD OLD platforms, so we have no idea on how much longer we can support it.