[Bug preprocessor/71183] [7 Regression] gcc -E always gives __DATE__ and __TIME__ as Jan 1 1970 00:00:00

[jrtc27 at jrtc27 dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71183

--- Comment #4 from James Clarke <jrtc27 at jrtc27 dot com> ---
Proposed patch: https://gcc.gnu.org/ml/gcc-patches/2016-05/msg01487.html