many *.m4 files: improve m4 quoting

[gnulib.git] / m4 / rmdir-errno.m4

diff --git a/m4/rmdir-errno.m4 b/m4/rmdir-errno.m4
index 7693bc7..4aca054 100644 (file)
--- a/m4/rmdir-errno.m4
+++ b/m4/rmdir-errno.m4
@@ -1,6 +1,6 @@
-#serial 8
+# serial 9
 
-# Copyright (C) 2000, 2001, 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 2000, 2001, 2005, 2006, 2009 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -12,7 +12,7 @@
 # test runs a test to determine the actual numeric value.
 AC_DEFUN([gl_FUNC_RMDIR_NOTEMPTY],
 [dnl
-  AC_CHECK_HEADERS_ONCE(unistd.h)
+  AC_CHECK_HEADERS_ONCE([unistd.h])
   AC_CACHE_CHECK([for rmdir-not-empty errno value],
     gl_cv_func_rmdir_errno_not_empty,
     [