1 dnl @ ../doc/m4.texi:2222: Origin of test
2 dnl @ expected status: 0
4 dnl @ Copyright (C) 2006, 2007, 2008, 2009 Free Software
6 dnl @ This file is free software; the Free Software Foundation
7 dnl @ gives unlimited permission to copy and/or distribute it
8 dnl @ with or without modifications, as long as this notice
10 define(`f', ``$0':$1')
12 f(f(f(undefine(`f')`hello world')))
13 dnl @result{}f:f:f:hello world