1 files changed, 4 insertions, 3 deletions

diff --git a/gl/m4/close.m4 b/gl/m4/close.m4
index 9f95c67..88c37fa 100644
--- a/gl/m4/close.m4
+++ b/gl/m4/close.m4
@@ -1,10 +1,11 @@
-# close.m4 serial 9
-dnl Copyright (C) 2008-2023 Free Software Foundation, Inc.
+# close.m4
+# serial 10
+dnl Copyright (C) 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
-AC_DEFUN([gl_FUNC_CLOSE],
+AC_DEFUN_ONCE([gl_FUNC_CLOSE],
 [
   AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
   m4_ifdef([gl_MSVC_INVAL], [