Comment # 5 on bug 900896 from Sebastian Krahmer

Indeed the RH bz about it is really sparse.

According to it it boils down to something similar to this:

https://github.com/newsoft/libvncserver/commit/045a044e8ae79db9244593fbce154cdf6e843273

which matches comment#3. We could just ask them to open their
bz so our patches are in sync.