Hi Chris, Make uses file existence and last-modified timestamps to determine if a target is newer than it's prerequisites. There are other tools that use checksums like md5, but make only uses presence and timestamps.
John On Thu, May 2, 2019 at 11:52 AM <cda...@posteo.de> wrote: > Hi all > > Say I would like to reproduce the behavior of make. How exactly does > make decide if a binary is 'up to date'? > Maybe something like this?: > > https://unix.stackexchange.com/questions/372857/compare-two-file-modification-dates > But how exactly? > > Thanks a lot for any answer, > Chris > > > _______________________________________________ > Help-make mailing list > Help-make@gnu.org > https://lists.gnu.org/mailman/listinfo/help-make > _______________________________________________ Help-make mailing list Help-make@gnu.org https://lists.gnu.org/mailman/listinfo/help-make
