Hi Wolfgang
On Thu, 17 Apr 2014 13:07:32 +0200 Wolfgang Denk wd@denx.de wrote:
Dear Masahiro,
In message 1397721632-18797-1-git-send-email-yamada.m@jp.panasonic.com you wrote:
The aim of this series is to prohibit using __DATE__ and __TIME__.
What is bad about using these?
include/generated/timestamp_autogenerated.h provides us the last build date correctly because it is touched every time.
__DATE__ or __TIME__ might give us unexpectedly old date because it is not updated unless the source file is modified.
One more reason. Using __DATE__ / __TIME__ here and there makes the binary comparison difficult.
I often use MD5SUM comparison to confirm that my changes to the build system still produce the same output.
I want to generate the completely same result if the source code is the same.
This can be achieved by simply disabling the timestamp file and version file. I want to gather timestamp stuff to one place for easy control of it.
Best Regards Masahiro Yamada