#define __NEED_ssize_t
#define __NEED_struct_iovec
+#ifdef _GNU_SOURCE
+#define __NEED_pid_t
+#endif
+
#include <bits/alltypes.h>
ssize_t readv (int, const struct iovec *, int);
ssize_t writev (int, const struct iovec *, int);
+#ifdef _GNU_SOURCE
+ssize_t process_vm_writev(pid_t, const struct iovec *, unsigned long, const struct iovec *, unsigned long, unsigned long);
+ssize_t process_vm_readv(pid_t, const struct iovec *, unsigned long, const struct iovec *, unsigned long, unsigned long);
+#endif
+
#ifdef __cplusplus
}
#endif