has modification time in the future 解决方案

make[1]: warning: File `scripts/Makefile.lib' has modification time in the future (2004-08-14 18:55:32 > 2001-04-03 08:52:46.222246)

make: warning: Clock skew detected. Your build may be incomplete.

主机时间错了。将时间改过来就行了。