extern "C" {
#endif
+#include <features.h>
+
#define __NEED_pid_t
#define __NEED_id_t
-#define __NEED_time_t
-#define __NEED_struct_timeval
-#define __NEED_siginfo_t
#include <bits/alltypes.h>
-typedef int idtype_t;
+typedef enum {
+ P_ALL = 0,
+ P_PID = 1,
+ P_PGID = 2,
+ P_PIDFD = 3
+} idtype_t;
pid_t wait (int *);
-int waitid (idtype_t, id_t, siginfo_t *, int);
pid_t waitpid (pid_t, int *, int );
-#ifdef _GNU_SOURCE
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
+ || defined(_BSD_SOURCE)
+#include <signal.h>
+int waitid (idtype_t, id_t, siginfo_t *, int);
+#endif
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
#include <sys/resource.h>
pid_t wait3 (int *, int, struct rusage *);
pid_t wait4 (pid_t, int *, int, struct rusage *);
#endif
-#include <bits/wait.h>
-#include <bits/wexitstatus.h>
+#define WNOHANG 1
+#define WUNTRACED 2
+
+#define WSTOPPED 2
+#define WEXITED 4
+#define WCONTINUED 8
+#define WNOWAIT 0x1000000
+
+#define __WNOTHREAD 0x20000000
+#define __WALL 0x40000000
+#define __WCLONE 0x80000000
+
+#define WEXITSTATUS(s) (((s) & 0xff00) >> 8)
+#define WTERMSIG(s) ((s) & 0x7f)
+#define WSTOPSIG(s) WEXITSTATUS(s)
+#define WCOREDUMP(s) ((s) & 0x80)
+#define WIFEXITED(s) (!WTERMSIG(s))
+#define WIFSTOPPED(s) ((short)((((s)&0xffff)*0x10001)>>8) > 0x7f00)
+#define WIFSIGNALED(s) (((s)&0xffff)-1U < 0xffu)
+#define WIFCONTINUED(s) ((s) == 0xffff)
+
+#if _REDIR_TIME64
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+__REDIR(wait3, __wait3_time64);
+__REDIR(wait4, __wait4_time64);
+#endif
+#endif
#ifdef __cplusplus
}