[Dev-luatex] luatex and synctex

Hi, does anybody use the synctex features in luatex? synctex is included in the luatex engine, but due to the multidir changes also the synctex C code needed to be patched and now the positions on the page reported by synctex are rather likely off by a constant (x,y) distance. Problem is that i can't test it. Therefore i would be very happy if anybody could tell me how to use synctex under linux? Or is it a Mac thing only? Does it work with, e. g., xpdf? Regards, Hartmut