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-rw-r--r--m4/dirname.m45
1 files changed, 3 insertions, 2 deletions
diff --git a/m4/dirname.m4 b/m4/dirname.m4
index e36937d8f..f3412ad08 100644
--- a/m4/dirname.m4
+++ b/m4/dirname.m4
@@ -1,5 +1,5 @@
-# dirname.m4 serial 5
-dnl Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+#serial 6 -*- autoconf -*-
+dnl Copyright (C) 2002-2006 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.
@@ -11,6 +11,7 @@ AC_DEFUN([gl_DIRNAME],
dnl Prerequisites of lib/dirname.h.
AC_REQUIRE([gl_AC_DOS])
+ AC_REQUIRE([gl_DOUBLE_SLASH_ROOT])
dnl No prerequisites of lib/basename.c, lib/dirname.c, lib/stripslash.c.
])