Fix RZ/A1H target issues

Fork of mbed-src by mbed official

Revision:
213:cc557cb04877
Parent:
212:34d62c0b2af6
--- a/api/SerialBase.h	Mon May 26 18:15:07 2014 +0100
+++ b/api/SerialBase.h	Mon May 26 18:30:07 2014 +0100
@@ -121,7 +121,8 @@
 
 protected:
     SerialBase(PinName tx, PinName rx);
-    virtual ~SerialBase();
+    virtual ~SerialBase() {
+    }
 
     int _base_getc();
     int _base_putc(int c);