I've tried to compile it on Lucid (kxstudio) but I'm unable to solve this QTNSPLUGIN library lack.
At the moment MusE 2RC2 runs, but with every midi loop that restarts,  it produces a xrun.
I's not so bad, but I wish a perfect function like the beta2 binary package by kxstudio's repos or find a RC2's deb for Lucid.

root@host:.../muse-2.0rc2/build# cmake -DCMAKE_BUILD_TYPE=release ../
found Doxygen
-- configured /home/furio/download/muse-2.0rc2/Doxyfile.in --> /home/furio/download/muse-2.0rc2/build/Doxyfile
Unix (probably linux) found
Qt QTNSPLUGIN library not found.
VST support disabled

The following components will be built:
-----------------------------------------------
   Lash support
   OSC (Liblo) support
   DSSI support
   Fluidsynth support

The following components WILL NOT be built:
-----------------------------------------------
   Python support
   VST support
   Experimental features

 Internal modules will be built as shared components.
 Build type: release

-- Configuring done
-- Generating done
-- Build files have been written to: /home/furio/download/muse-2.0rc2/build