Author: Vignesh R <vignesh.r@timesys.com>
Date: Wed, 30 Sep 2020 07:59:39 -0400

there is a typo in old kernel
https://github.com/torvalds/linux/commit/f8d1e548931cfa5ea9a082e020c2a47d27e5d793

---
 gst/gstsystemclock.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gst/gstsystemclock.c b/gst/gstsystemclock.c
index 96341fd..095c714 100644
--- a/gst/gstsystemclock.c
+++ b/gst/gstsystemclock.c
@@ -75,6 +75,10 @@
 #include <linux/futex.h>
 #include <sys/syscall.h>
 
+#ifndef FUTEX_WAIT_BITS
+#define FUTEX_WAIT_BITS FUTEX_WAKE_BITSET
+#endif
+
 #ifndef FUTEX_WAIT_BITSET_PRIVATE
 #define FUTEX_WAIT_BITSET_PRIVATE FUTEX_WAIT_BITSET
 #endif
-- 
2.17.1