On 2023-12-22 09:28, Zack Weinberg wrote: > On Thu, Dec 21, 2023, at 10:07 PM, Jacob Bachmeyer wrote: [...] >> I suggest revising AT_MTIME_DELAY to actually create two files and >> loop touching one of them until the timestamps differ. > > This won’t work, because whether *test* thinks two timestamps differ > may be different from whether *autom4te* thinks two timestamps differ > (due to the whole mess with Time::HiRes not necessarily being > available, timestamps getting rounded to the nearest IEEE double, > etc). Also, test -nt isn’t portable, we’d have to do the same > mess with ls -t that’s in the code setting at_ts_resolution. Since for the purpose of testing autom4te behaviour one should be able to assume autom4te is available, a solution for this issue would be to simply add a mechanism to autom4te (or find a creative way to do it with existing autom4te) which compares two file timestamps, and use that in the loop. Cheers, Nick
