tasklist item still relevant?

[toby cabot]

Hi Folks,

Greetings from the GNU Volunteer Coordinators[0].

There's an item in the GNU task list[1] that reads "Add features to
GNU Make to record the precise rule with which each file was last
recompiled; then recompile any file if its rule in the makefile has
changed."  This task has been in the task list for longer than I've
been involved with GNU (i.e., more than a decade), is it still needed?
Has someone accomplished this yet?  Do you still think it's something
that you want to do?  I'd be happy to keep it; I just want to check if
it's still relevant.

Thanks,
Toby

[0] http://www.gnu.org/software/tasklist/howto-volunteer.html
[1] https://savannah.gnu.org/people/viewjob.php?group_id=3972&job_id=200