ox-latex: PDF generation timestamp check
* lisp/ox-latex.el (org-latex-compile): Improve timestamp check on HFS+
filesystem by only considering 1-second clock resolution.
Previously, the call to (current-time) could return a timestamp with
a non-zero microsecond or picosecond fields, while the file attribute
always has zeros for these fields. The check that the generated file is
newer than the reference timestamp only succeeded when the time to
generate the file crossed a 1-second clock interval.
TINYCHANGE