libmysql.def, libmysql.c:

  Minor clean-ups

libmysql/libmysql.c

@@ -1563,7 +1563,8 @@ void my_net_local_init(NET *net)
   trailing '. The caller must supply whichever of those is desired.
 */
 
-ulong mysql_hex_string(char *to, const char *from, ulong length)
+ulong STDCALL
+mysql_hex_string(char *to, const char *from, ulong length)
 {
   char *to0= to;
   const char *end;

libmysql/libmysql.def

@@ -47,6 +47,7 @@ EXPORTS
 	mysql_errno
 	mysql_error
 	mysql_escape_string
+	mysql_hex_string
 	mysql_stmt_execute
 	mysql_stmt_fetch
 	mysql_stmt_fetch_column