Small fixes.

include/my_sys.h

@@ -280,7 +280,7 @@ enum loglevel {
 
 enum cache_type
 {
-  TYPE_NOT_SET, READ_CACHE, WRITE_CACHE,
+  TYPE_NOT_SET= 0, READ_CACHE, WRITE_CACHE,
   SEQ_READ_APPEND		/* sequential read or append */,
   READ_FIFO, READ_NET,WRITE_NET};
 

server-tools/instance-manager/protocol.cc

@@ -74,7 +74,7 @@ int net_send_error(struct st_net *net, uint sql_errno)
             MYSQL_ERRMSG_SIZE];                 // message
   char *pos= buff;
 
-  int ERROR_PACKET_CODE= 255;
+  const int ERROR_PACKET_CODE= 255;
   *pos++= ERROR_PACKET_CODE;
   int2store(pos, sql_errno);
   pos+= 2;
@@ -95,7 +95,7 @@ int net_send_error_323(struct st_net *net, uint sql_errno)
             MYSQL_ERRMSG_SIZE];                 // message
   char *pos= buff;
 
-  int ERROR_PACKET_CODE= 255;
+  const int ERROR_PACKET_CODE= 255;
   *pos++= ERROR_PACKET_CODE;
   int2store(pos, sql_errno);
   pos+= 2;