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-rw-r--r--socket/sys/socket.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/socket/sys/socket.h b/socket/sys/socket.h
index 2358ab5582..e94f56f0fa 100644
--- a/socket/sys/socket.h
+++ b/socket/sys/socket.h
@@ -33,6 +33,9 @@ __BEGIN_DECLS
    `struct msghdr', and `struct linger' types.  */
 #include <bits/socket.h>
 
+/* Get the definition of `sockaddr_union'.  */
+#include <bits/sockunion.h>
+
 #ifdef __USE_BSD
 /* This is the 4.3 BSD `struct sockaddr' format, which is used as wire
    format in the grotty old 4.3 `talk' protocol.  */