xMAME is a UNIX version of MAME optimized for the GCW-Zero handheld. The main goal of XMAME is to provide an updated version (actually versions) of MAME which was something other than the ubiquitous MAME4ALL. GCW-Zero port by Slaanesh.

http://www.slaanesh.net/2014/12/xmame-v10-for-gcw-zero.html