2 files changed, 9 insertions, 3 deletions
diff --git a/sysdeps/stub/sys/ipc_buf.h b/sysdeps/stub/sys/ipc_buf.h
index fc2ad03873..d62d2c14ce 100644
--- a/sysdeps/stub/sys/ipc_buf.h
+++ b/sysdeps/stub/sys/ipc_buf.h
@@ -36,9 +36,6 @@ Boston, MA 02111-1307, USA.  */
 
 __BEGIN_DECLS
 
-/* Data type for key value.  */
-typedef int key_t;
-
 /* Special key values.  */
 #define IPC_PRIVATE	((key_t) 0)	/* private key */
 
diff --git a/sysdeps/stub/sys/sem_buf.h b/sysdeps/stub/sys/sem_buf.h
index b301525408..194eb149ec 100644
--- a/sysdeps/stub/sys/sem_buf.h
+++ b/sysdeps/stub/sys/sem_buf.h
@@ -47,6 +47,15 @@ struct semid_ds
   unsigned short int sem_nsems;		/* number of semaphores in set */
 };
 
+/* Union used for argument for `semctl'.  */
+union semun
+{
+  int val;				/* value for SETVAL */
+  struct semid_ds *buf;			/* buffer for IPC_STAT & IPC_SET */
+  unsigned short int *array;		/* array for GETALL & SETALL */
+  struct seminfo *__buf;		/* buffer for IPC_INFO */
+ };
+ 
 __END_DECLS
 
 #endif /* sys/sem_buf.h */