Is there a planned "nx" releae for CentOS 6 extras? This turned out to be pesky to compile under RHEL 6 for tstingq, because the "audiofile-devel" package is not in the core channels, it's in the "optional" channel. I've also updated the 'naxgent' component, and merged overlapping components from the varous centos_ver releases to make the common components clearly listed, and the differences handled separately. I also tend to roll back "release" numbers for locally built components, so that when a reputable repository like CentOS or RPMforge or EPEL publishes them, I get theirs rather than my testing version.
My new nx.spec file is attached. Enjoy.