i made an ebuild for rsxs compiles fine here and merges fine a patch was needed to fix some access violations (i will be sending this to the author so it can be fixed upstream)
Created attachment 6012 [details] rsxs-0.5.ebuild rsxs-0.5.ebuild (i'd put it in x11-misc)
Created attachment 6013 [details] rsxs.patch rsxs.patch goes in files directory
already have a version of this ... check out rss_glx