diff -uNr mysql-5.1.73.ORIG/server-tools/instance-manager/protocol.cc mysql-5.1.73/server-tools/instance-manager/protocol.cc
--- mysql-5.1.73.ORIG/server-tools/instance-manager/protocol.cc	2013-11-05 03:52:27.000000000 +0900
+++ mysql-5.1.73/server-tools/instance-manager/protocol.cc	2016-12-27 06:23:20.000000000 +0900
@@ -24,7 +24,11 @@
 #include <m_string.h>
 
 
+#if 0
 static uchar eof_buff[1]= { (char) 254 }; /* Marker for end of fields */
+#else
+static uchar eof_buff[1]= { (uchar) 254 }; /* Marker for end of fields */
+#endif
 static const char ERROR_PACKET_CODE= (char) 255;