--- source/locking/shmem_sysv.c.orig	Thu Dec 31 09:45:57 1998
+++ source/locking/shmem_sysv.c	Wed Dec 30 14:42:58 1998
@@ -24,6 +24,15 @@
 
 
 #ifdef HAVE_SYSV_IPC
+#ifdef SGI_SEMUN_HACK
+union semun_hack {
+        int val;
+        struct semid_ds *buf;
+        unsigned short *array;
+       char __dummy[5];
+};
+#define semun semun_hack
+#endif
 
 extern int DEBUGLEVEL;
 
--- source/tests/sysv_ipc.c.orig	Wed Dec 30 14:43:18 1998
+++ source/tests/sysv_ipc.c	Wed Dec 30 14:43:59 1998
@@ -20,6 +20,15 @@
 };
 #endif
 
+#ifdef SGI_SEMUN_HACK
+union semun_hack {
+	int val;
+	struct semid_ds *buf;
+	unsigned short *array;
+	char __dummy[5];
+};
+#define semun semun_hack
+#endif
 
 main()
 {