--- np2/x11/cmserial.h	2011/01/15 18:43:13	1.2
+++ np2/x11/cmserial.h	2011/01/15 19:16:58	1.3
@@ -3,9 +3,7 @@
 
 // ---- com manager serial for unix
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+G_BEGIN_DECLS
 
 extern const UINT32 cmserial_speed[10];
 
@@ -17,8 +15,6 @@ COMMNG cmserial_create(UINT port, BYTE p
 #define	MAX_SERIAL_PORT_NUM	1
 #endif
 
-#ifdef __cplusplus
-}
-#endif
+G_END_DECLS
 
 #endif	/* NP2_X11_CMSERIAL_H__ */