#ifndef _OGL_CANVAS_H_
#define _OGL_CANVAS_H_
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(__APPLE__)
#pragma interface "canvas.h"
#endif
#define StartDraggingRight 3
#define ContinueDraggingRight 4
-extern wxChar* wxShapeCanvasNameStr;
+extern const wxChar* wxShapeCanvasNameStr;
// When drag_count reaches 0, process drag message