diff -u -r ../RHash-1.3.6/librhash/byte_order.h ./librhash/byte_order.h
--- ../RHash-1.3.6/librhash/byte_order.h	2018-03-14 02:42:17.000000000 +0100
+++ ./librhash/byte_order.h	2018-04-22 21:55:52.997763406 +0200
@@ -14,6 +14,10 @@
 #endif
 
 
+#ifdef __ANDROID__
+# include <sys/endian.h>
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif