Add includes.h for compatibility stuff.
diff --git a/cipher-aesctr.c b/cipher-aesctr.c
index 5957f4b..eed95c3 100644
--- a/cipher-aesctr.c
+++ b/cipher-aesctr.c
@@ -15,6 +15,8 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "includes.h"
+
 #include <sys/types.h>
 #include <string.h>