1# Copyright 2018 Rene Rivera 2# Distributed under the Boost Software License, Version 1.0. 3# (See accompanying file LICENSE_1_0.txt or copy at 4# http://www.boost.org/LICENSE_1_0.txt) 5 6actions foo 7{ 8 echo "$(>)" > "$(<)" 9} 10 11make a.txt : a.cpp : @foo ; 12