symbol lookup error: /usr/lib64/libX11.so.6: undefined symbol: xcb_wait_for_reply64

[Peter Hutterer]

On Thu, Jul 30, 2015 at 08:55:06AM -0400, Darryl Cook wrote:
> I am getting the following error when i run any X app on linux server.
> Server is running Redhat ES6 64 bit.   It started after patching the system
> but I have no idea which patch may have caused the problem.   Anyone else
> seen this?
> 
> xclock: symbol lookup error: /usr/lib64/libX11.so.6: undefined symbol:
> xcb_wait_for_reply64

looks like you'll need to update libxcb as well.

Cheers,
   Peter