Is it possible to link CNavMesh from Source SDK?

I’m making a binary module that extends CNavMesh in Garry’s Mod with additional functions available in Source SDK, however I’m unable to compile the module due to the CNavMesh functions not having symbols in any of the binaries shipped with Source SDK. If I’m not mistaken, CNavMesh is compiled into server.dll which only the developers of Garry’s Mod would have, so I’m wondering if I’m right and if theres another way around this.

The functions in question are the CNavMesh constructor, ConnectTo, Disconnect and SetCorner.

Turns out they were just added. Thanks.