added linux support [untested]

dlls/mysqlx/mysql/MysqlDatabase.cpp

@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <string.h>
 #include "MysqlDriver.h"
 #include "MysqlDatabase.h"
 #include "MysqlQuery.h"

dlls/mysqlx/mysql/MysqlResultSet.cpp

@@ -1,3 +1,4 @@
+#include <string.h>
 #include <stdlib.h>
 #include "MysqlResultSet.h"