https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71851
--- Comment #8 from Daniel Gutson <daniel.gutson at intel dot com> --- (In reply to Jakub Jelinek from comment #7) > (In reply to Daniel Gutson from comment #5) > > This macro would change break reproduceability as much as __TIME__ does. > > __TIME__ is now being warned on if requested (-Wdate-time), and can be > changed > through environment variables - SOURCE_DATE_EPOCH env var - and for > -fcompare-debug SOURCE_DATE_EPOCH is set by the driver for both invocations > the same. > So, as you can see, there is a strong shift away from __DATE__/__TIME__. OK, granted. I complain that build reproduceability is a specific requirement for a particular audience of users; other users may need just the opposite and IMVHO I think have the same right to claim it. This is of course a dead end discussion we won't have here. We will implement this as a cpp plugin, so feel free to close the issue.