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

diff --git a/include/sys/select.h b/include/sys/select.h
index c5a2877f..e25257d2 100644
--- a/include/sys/select.h
+++ b/include/sys/select.h

@@ -32,6 +32,9 @@ typedef struct

int select (int, fd_set *__restrict, fd_set *__restrict, fd_set *__restrict, struct timeval *__restrict);

int pselect (int, fd_set *__restrict, fd_set *__restrict, fd_set *__restrict, const struct timespec *__restrict, const sigset_t *__restrict);

+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)

+#define NFDBITS (8*(int)sizeof(long))

+#endif

#ifdef __cplusplus

}