The current stable version fails to build with GCC 4.7. Thanks.
No problem on stabling net-misc/nxcl-0.9-r2, changes are minor (mostly install path and gcc 4.7 support).
Arches please test and mark stable =net-misc/nxcl-0.9-r2, thanks! Client-side you can test with net-misc/qtnx (main reverse dep of nxcl)
x86 stable. Last arch, closing