New architectures don't define ARCH_WANT_IPC_PARSE_VERSION in their kernel.
This means that every cmd passed to semctl,msgctl and shmctl is IPC_64 by
default. For these architectures we need to define __IPC_64 as 0. Existing
architectures are not affected by this change.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
#include <syscall.h>
#include <bits/wordsize.h>
-#if __WORDSIZE == 32 || defined __alpha__ || defined __mips__
-# define __IPC_64 0x100
-#else
-# define __IPC_64 0x0
+#ifndef __IPC_64
+# if __WORDSIZE == 32 || defined __alpha__ || defined __mips__
+# define __IPC_64 0x100
+# else
+# define __IPC_64 0x0
+# endif
#endif
#ifdef __NR_ipc