--- a/librtas_src/librtas.h	2018-06-15 01:49:01.000000000 +0200
+++ b/librtas_src/librtas.h	2019-03-19 15:35:14.839592813 +0100
@@ -27,6 +27,7 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <stdint.h>
+#include <endian.h>		/* required for BE arches */
 
 #define RTAS_KERNEL_INT -1001	/* No Kernel Interface to Firmware */
 #define RTAS_KERNEL_IMP -1002	/* No Kernel Implementation of Function */
--- a/librtasevent_src/librtasevent.h	2018-06-15 01:49:01.000000000 +0200
+++ b/librtasevent_src/librtasevent.h	2019-03-19 15:37:53.055600976 +0100
@@ -49,6 +49,7 @@
 
 #include <stdio.h>
 #include <inttypes.h>
+#include <endian.h>
 
 struct rtas_event;
 
