--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _LINUX_WAIT_H
+#define _LINUX_WAIT_H
+
+#define WNOHANG 0x00000001
+#define WUNTRACED 0x00000002
+#define WSTOPPED WUNTRACED
+#define WEXITED 0x00000004
+#define WCONTINUED 0x00000008
+#define WNOWAIT 0x01000000 /* Don't reap, just poll status. */
+
+#define __WNOTHREAD 0x20000000 /* Don't wait on children of other threads in this group */
+#define __WALL 0x40000000 /* Wait on all children, regardless of type */
+#define __WCLONE 0x80000000 /* Wait only on non-SIGCHLD children */
+
+/* First argument to waitid: */
+#define P_ALL 0
+#define P_PID 1
+#define P_PGID 2
+
+
+#endif /* _LINUX_WAIT_H */