--- rpl/src/rpl.h	2015/02/19 11:01:29	1.265
+++ rpl/src/rpl.h	2015/03/10 09:01:38	1.266
@@ -38,6 +38,10 @@
 #	ifdef OpenBSD
 #		define _BSD_SOURCE
 #	endif
+
+#	ifdef FreeBSD
+#		define __BSD_VISIBLE
+#	endif
 #endif
 
 #ifdef OS2