It is not our bug I think: do_zoom.c:281: `GLX_PBUFFER_WIDTH' undeclared (first use in this function) I have in config.h /* define if glXCreatePbuffer exists */ #define HAVE_PBUFFERS 1 and Mesa 3.4.2. GLX_PBUFFER_WIDTH is missing (?): http://freedesktop.org/cgi-bin/viewcvs.cgi/mesa/Mesa/include/GL/glx.h?r1=1.27&r2=1.28 Radim