Small bugfix and adapted naming

include/sta/tacos.hpp

@@ -78,6 +78,7 @@ namespace sta
             return thread_ptr;
         }
 
+#ifdef STA_TACOS_CAN_BUS_ENABLED
 		/**
 		 * @brief Queue a message to be sent over the CAN bus.
 		 * 
@@ -102,7 +103,7 @@ namespace sta
 		 * @ingroup tacos_api
 		 */
 		bool publishState(uint32_t from, uint32_t to, uint32_t lockout = 0);
-
+#endif STA_TACOS_CAN_BUS_ENABLED
 	}  // namespace tacos
 }