Re: POSIX ruling on up-to-date vs. identical timestamps

[Paul Eggert]

David Boyce wrote:
> The obvious compromise would be to change the behavior only in the
> presence of the ".POSIX:" special target.

We should limit ".POSIX" to what POSIX requires.  Even if the ruling 
stands POSIX won't require the HP-UX behavior, so ".POSIX" should be 
independent of this issue.

It'd be OK to introduce a new special target to enable the HP-UX 
behavior.  .EQUAL_TIMES_ARE_OUT-OF-DATE, say.  We could document the new 
target next to .LOW_RESOLUTION_TIME, since they're related issues.  The 
new target could act like .LOW_RESOLUTION_TIME, except that it imposes 
HP-UX rather than low-res behavior.