follow-up for the universal darwin config.py

also added bal level call stub for set_last_seq,
player building was broken by recent commit

source/blender/blenkernel/bad_level_call_stubs/stubs.c

@@ -355,6 +355,7 @@ TimeMarker *get_frame_marker(int frame){return 0;};
 
 /* editseq.c */
 Sequence *get_forground_frame_seq(int frame){return 0;};
+void set_last_seq(Sequence *seq){return 0;};
 
 /* modifier.c stub */
 void harmonic_coordinates_bind(struct MeshDeformModifierData *mmd,