--- a/src/drivers/video_nsgl.h	Sun Jun 01 00:47:45 2008 +0000
+++ b/src/drivers/video_nsgl.h	Mon Jul 14 07:44:42 2008 +0000
@@ -16,12 +16,16 @@
  * GNU General Public License for more details.
  */
 
-#ifndef video_nsgl_H
-#define video_nsgl_H
+#ifndef lxdream_video_nsgl_H
+#define lxdream_video_nsgl_H 1
 
 #include <AppKit/NSView.h>
 #include "display.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * Initialize the display driver by setting the appropriate methods
  * for NSGL support
@@ -38,4 +42,8 @@
  */
 void video_nsgl_swap_buffers();
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* !video_nsgl_H */
\ No newline at end of file