diff --git a/include/polarssl/camellia.h b/include/polarssl/camellia.h
index f073d46..050c6cd 100644
--- a/include/polarssl/camellia.h
+++ b/include/polarssl/camellia.h
@@ -3,7 +3,7 @@
  *
  * \brief Camellia block cipher
  *
- *  Copyright (C) 2006-2010, Brainspark B.V.
+ *  Copyright (C) 2006-2013, Brainspark B.V.
  *
  *  This file is part of PolarSSL (http://www.polarssl.org)
  *  Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
@@ -27,6 +27,8 @@
 #ifndef POLARSSL_CAMELLIA_H
 #define POLARSSL_CAMELLIA_H
 
+#include "config.h"
+
 #include <string.h>
 
 #ifdef _MSC_VER
@@ -42,6 +44,10 @@
 #define POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH           -0x0024  /**< Invalid key length. */
 #define POLARSSL_ERR_CAMELLIA_INVALID_INPUT_LENGTH         -0x0026  /**< Invalid data input length. */
 
+#if !defined(POLARSSL_CAMELLIA_ALT)
+// Regular implementation
+//
+
 /**
  * \brief          CAMELLIA context structure
  */
@@ -168,6 +174,18 @@
                        const unsigned char *input,
                        unsigned char *output );
 
+#ifdef __cplusplus
+}
+#endif
+
+#else  /* POLARSSL_CAMELLIA_ALT */
+#include "camellia_alt.h"
+#endif /* POLARSSL_CAMELLIA_ALT */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * \brief          Checkup routine
  *