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-rw-r--r--m4/bison.m47
1 files changed, 6 insertions, 1 deletions
diff --git a/m4/bison.m4 b/m4/bison.m4
index c4854b273..273b641ed 100644
--- a/m4/bison.m4
+++ b/m4/bison.m4
@@ -1,4 +1,9 @@
-#serial 3
+#serial 4
+
+# Copyright (C) 2002 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.
AC_DEFUN([gl_BISON],
[