musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/include/sys/wait.h b/include/sys/wait.h
index a1851530..8e3d72d6 100644
--- a/include/sys/wait.h
+++ b/include/sys/wait.h

@@ -16,8 +16,12 @@ typedef int idtype_t;

pid_t wait (int *);

int waitid (idtype_t, id_t, siginfo_t *, int);

pid_t waitpid (pid_t, int *, int );

-//pid_t wait3 (int *, int, struct rusage *);

-//pid_t wait4 (pid_t, int *, int, struct rusage *);

+

+#ifdef _GNU_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>