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

example/C++/mmc1.cpp

@@ -20,11 +20,26 @@
    This basically the libdio mmc_get_hwinfo() routine.
    See also corresponding C and OO C++ program.
 */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#define __CDIO_CONFIG_H__ 1
+#endif
+
+#ifdef HAVE_STDIO_H
 #include <stdio.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
 #include <cdio/cdio.h>
 #include <cdio/mmc.h>
-#include <string.h>
 
 /* Set how long to wait for MMC commands to complete */
 #define DEFAULT_TIMEOUT_MS 10000