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-rw-r--r--otherlibs/unix/lockf.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/otherlibs/unix/lockf.c b/otherlibs/unix/lockf.c
index 82f3c5d7e..6e6ce5c17 100644
--- a/otherlibs/unix/lockf.c
+++ b/otherlibs/unix/lockf.c
@@ -15,6 +15,7 @@
#include <errno.h>
#include <fcntl.h>
+#include <fail.h>
#include <mlvalues.h>
#include <signals.h>
#include "unixsupport.h"