On Tue, 2022-05-10 at 22:45 +0200, Michael Lehn wrote: > But not on the Linux boxes there make always rebuild everything. On > all machines I am using GNU Make.
This is because whatever GNU/Linux distribution is being used, has configured their binutils so that ar is in "deterministic mode" by default, which is bogus and breaks make. On such a system you'll have to pass the "U" option to ar, to disable deterministic mode.
