dnl @ ../doc/m4.texinfo:2072: Origin of test
dnl @ Copyright (C) 2006 Free Software Foundation
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
dnl @ is preserved.
define(`foo', `Hello World.')
dnl @result{}
define(`echo', `$@')
dnl @result{}
traceon(`foo', `echo')
dnl @result{}
foo
dnl @error{}m4trace: -1- foo -> `Hello World.'
dnl @result{}Hello World.
echo(gnus, and gnats)
dnl @error{}m4trace: -1- echo(`gnus', `and gnats') -> ``gnus',`and gnats''
dnl @result{}gnus,and gnats