Harmonize source headers: C examples (Patch 4/5)

example/cdio-eject.c

@@ -14,10 +14,19 @@
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#define __CDIO_CONFIG_H__ 1
+#endif
+
+#ifdef HAVE_STDIO_H
+#include <stdio.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
 
 #include <cdio/cdio.h>
-#include <stdio.h>
-#include <string.h>
 
 static void usage(char * progname)
   {