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-rw-r--r--gl/lib/fd-reopen.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/gl/lib/fd-reopen.h b/gl/lib/fd-reopen.h
index 105e36a31..8f4164002 100644
--- a/gl/lib/fd-reopen.h
+++ b/gl/lib/fd-reopen.h
@@ -19,4 +19,4 @@
#include <sys/types.h>
-int fd_reopen (int, char const *, int, mode_t);
+int fd_reopen (int, char const *, int, mode_t) _GL_ATTRIBUTE_NONNULL ();