Follow-up Comment #9, bug#63650 (group make):
Interesting idea, one that doesn't seem to be ruled out by anything in the
original problem report, bug #10593. (I have a copy of the Makefile from that
bug with an mtime one day earlier than the submission date. It looks like my
idiolect. Guess I
Follow-up Comment #8, bug#63650 (group make):
I just ran into this bug while trying to upgrade from 4.2 to 4.4. We had a lot
of builds get slower. Specifically
[trace-cmd](https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/tag/?h=trace-cmd-v3.1.5)
now takes minutes to run the Makefile
