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--- a/sem.c
+++ b/sem.c
@@ -35,28 +35,12 @@
#include <errno.h>
#include "sem.h"
-/* If we've got a version of glibc that doesn't define union semun, we do
- * it ourseleves like in semctl(2). Otherwise, fall back to the original
- * buffer behaviour of defining it (differetly!) only on some systems.
- *
- * mbuck@debian.org, 1999/08/29
- */
-#if defined(__GNU_LIBRARY__) && defined(_SEM_SEMUN_UNDEFINED)
+// modern POSIX requires the user to provide this definition
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 */
};
-#else
-#if defined(SYS5) || defined(ultrix) || defined(_AIX)
-union semun {
- int val;
- struct semid_ds *buf;
- ushort *array;
-};
-#endif
-#endif
/* IMPORTS */
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