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-rw-r--r--include/sys/file.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/sys/file.h b/include/sys/file.h
index fb3cd7544e..ec7f3de73d 100644
--- a/include/sys/file.h
+++ b/include/sys/file.h
@@ -1 +1,4 @@
 #include <misc/sys/file.h>
+
+/* Now define the internal interfaces.  */
+extern int __flock __P ((int __fd, int __operation));