I was running
make to build Comedi against the current Hardy
kernel, and it died with
... make: Warning: File `Makefile' has modification time 1.1e+02 s in the future make: Nothing to be done for `clean-am'. make: warning: Clock skew detected. Your build may be incomplete. make: Leaving directory `/thor/wking/src/lab/comedi/comedi-build' make: warning: Clock skew detected. Your build may be incomplete.
“No problem,” thinks I, since I'd just rebooted into the new kernel,
but I'd pulled the source in under the old kernel. I'll just
all the files to make sure their times are in the past.
Nope. Same error. Turns out my
touch is from the future:
$ date; ll include/Makefile; touch include/Makefile; ll include/Makefile; date Fri May 8 10:48:35 EDT 2009 -rw-r--r-- 1 wking wking 15540 2009-05-08 10:48 include/Makefile -rw-r--r-- 1 wking wking 15540 2009-05-08 10:50 include/Makefile Fri May 8 10:48:35 EDT 2009
This is because my files are NFS mounted from another computer, and the clocks were out of sync by two minutes. Time to setup NTP for the lab LAN ;).