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-rw-r--r--libavutil/atomic.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/libavutil/atomic.c b/libavutil/atomic.c
index e4fa957ba4..83740396d4 100644
--- a/libavutil/atomic.c
+++ b/libavutil/atomic.c
@@ -97,8 +97,11 @@ void *avpriv_atomic_ptr_cas(void * volatile *ptr, void *oldval, void *newval)
return *ptr;
}
-#else
+#else /* HAVE_THREADS */
+/* This should never trigger, unless a new threading implementation
+ * without correct atomics dependencies in configure or a corresponding
+ * atomics implementation is added. */
#error "Threading is enabled, but there is no implementation of atomic operations available"
#endif /* HAVE_PTHREADS */