diff -Naur asterisk-11.20.0/channels/chan_unistim.c asterisk-11.20.0.clang/channels/chan_unistim.c
--- asterisk-11.20.0/channels/chan_unistim.c	2015-12-30 14:45:25.819240746 +0600
+++ asterisk-11.20.0.clang/channels/chan_unistim.c	2015-12-30 14:44:25.000000000 +0600
@@ -963,9 +963,9 @@
 	int err;
 	struct msghdr msg;
 	struct {
-		struct cmsghdr cm;
 		int len;
 		struct in_addr address;
+		struct cmsghdr cm;
 	} ip_msg;
 
 	/* Zero out the structures before we use them */