--- dateutils-0.4.6/build-aux/yuck.c~	2019-03-19 03:06:34.000000000 +0100
+++ dateutils-0.4.6/build-aux/yuck.c	2019-03-19 13:51:31.688833165 +0100
@@ -65,7 +65,9 @@
 #include <sys/wait.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#if ! defined __linux__
 #include <sys/sysctl.h>
+#endif
 #include <time.h>
 #if defined WITH_SCMVER
 # include <yuck-scmver.h>