      return 0;
  }
  
-+#ifdef FEATURE_PERIPH_HWRNG
++#ifdef MODULE_PERIPH_HWRNG
 +
  int uECC_make_key(uint8_t *public_key,
                    uint8_t *private_key,

     return 0;
 }
 
+#endif /* FEATURE_PERIPH_HWRNG */
+
 int uECC_shared_secret(const uint8_t *public_key,
                        const uint8_t *private_key,

 */
 int uECC_make_key(uint8_t *public_key, uint8_t *private_key, uECC_Curve curve);
 
+#endif /* MODULE_PERIPH_HWRNG */
+
 /* uECC_shared_secret() function.
 Compute a shared secret given your secret key and someone else's public key.
