继续翻译
`.EXPORT_ALL_VARIABLES'
Simply by being mentioned as a target, this tells `make' to export
all variables to child processes by default. *Note Communicating
Variables to a Sub-`make': Variables/Recursion.
通过简单地声明 .EXPORT_ALL_VARIABLES ，可以告诉 make 来到出所有的变量给 子进程。
*Note Communicating Variables to a Sub-make: Variables/Recursion.
后文待续
本文转自健哥的数据花园博客园博客，原文链接：http://www.cnblogs.com/gaojian/archive/2012/09/25/2701102.html，如需转载请自行联系原作者
