Add header file for non-g++ compilers

This commit was SVN r7875.

test/memory/opal_memory_cxx.cc

@@ -17,6 +17,7 @@
 #include "ompi_config.h"
 
 #include <vector>
+#include <stdio.h>
 
 #include "ompi/include/constants.h"
 #include "opal/runtime/opal.h"