Harmonize source headers: C++ examples [PATCH 3/5] from pbatard.

example/C++/OO/drives.cpp

@@ -17,9 +17,10 @@
 
 /* Simple program to show drivers installed and what the default 
    CD-ROM drive is and what CD drives are available. */
-#include <cdio++/cdio.hpp>
-#include <cdio/cd_types.h>
-#include <cdio/logging.h>
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#define __CDIO_CONFIG_H__ 1
+#endif
 
 #ifdef HAVE_STDIO_H
 #include <stdio.h>
@@ -31,6 +32,10 @@
 #include <sys/types.h>
 #endif
 
+#include <cdio++/cdio.hpp>
+#include <cdio/cd_types.h>
+#include <cdio/logging.h>
+
 static void 
 log_handler (cdio_log_level_t level, const char message[])
 {