1 files changed, 10 insertions, 0 deletions
diff --git a/src/cfg_gfx/opengl.H b/src/cfg_gfx/opengl.H
index 4ad56770a..86abea41a 100644
--- a/src/cfg_gfx/opengl.H
+++ b/src/cfg_gfx/opengl.H
@@ -86,6 +86,16 @@ public:
 //  void end_complex_polygon();
 //  void gap();
 //  void circle(double x, double y, double r);
+  void begin_complex_polygon() { }
+  void transformed_vertex(double xf, double yf) { }
+  void vertex(double x, double y) { }
+  void end_points() { }
+  void end_line() { }
+  void end_loop() { }
+  void end_polygon() { }
+  void end_complex_polygon() { }
+  void gap() { }
+  void circle(double x, double y, double r) { }
 };