X.org X11 server implementation [ -e /usr/lib/xorg/modules/extensions/libglx.so ] || ln -sf mesa/libglx.so /usr/lib/xorg/modules/extensions/libglx.so [ -e /usr/lib/xorg/modules/extensions/libdri.so ] || ln -sf mesa/libdri.so /usr/lib/xorg/modules/extensions/libdri.so [ -e /usr/lib/xorg/modules/extensions/libglx.so ] || ln -sf mesa/libglx.so /usr/lib/xorg/modules/extensions/libglx.so