--- backends/aarch64_initreg.c 2017-03-08 17:45:48.694607265 +0100
+++ backends/aarch64_initreg.c 2017-03-08 17:49:45.939959063 +0100
@@ -31,6 +31,7 @@
#endif
#include "system.h"
+#include <sys/uio.h>
#include <assert.h>
#ifdef __aarch64__
# include <sys/user.h>