* Eli Zaretskii wrote on Wed, Jul 20, 2011 at 08:38:24AM CEST: > > > I'm afraid this cure would be worse than the disease. > > > > I feel there's some kind of misunderstanding here, because with my > > proposal, nothing will happen that doesn't already happen. Perhaps > > you could show in more detail which Make actions would happen that > > doesn't happen now. > > Perhaps you thought that a mere "make", even without re-running > `configure', will trigger these rules. But that is not the case: as > long as config.status is not updated, these rules will not be > triggered, since unistd.h etc. will always be newer than the > corresponding *.in.h templates, due to the fact that move-if-change > _will_ overwrite them with newer versions whenever there's a real > change in the *.in.h templates. > > Am I missing something?
I think you are. Once config.status is updated, the .h files' rules are triggered, but since move-if-change never updates identical outputs they will be triggered every time from then on. You need a separate stamp file to avoid this. Cheers, Ralf
