diff --git a/src/common.h b/src/common.h
index 1f25a9c..05c0bc9 100644
--- a/src/common.h
+++ b/src/common.h
@@ -32,7 +32,7 @@
 
 #if defined IP_RECVDSTADDR 
 # define DSTADDR_SOCKOPT IP_RECVDSTADDR 
-# define dstaddr(x) (CMSG_DATA(x)) 
+# define dstaddr(x) ((struct in_addr *) CMSG_DATA(x)) 
 #elif defined IP_PKTINFO 
 # define DSTADDR_SOCKOPT IP_PKTINFO 
 # define dstaddr(x) (&(((struct in_pktinfo *)(CMSG_DATA(x)))->ipi_addr)) 
diff --git a/src/iodined.c b/src/iodined.c
index ff3804f..0ff9eee 100644
--- a/src/iodined.c
+++ b/src/iodined.c
@@ -23,6 +23,7 @@
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/time.h>
+#define _XPG4_2
 #include <sys/socket.h>
 #include <sys/uio.h>
 #include <fcntl.h>