At Tuesday 17 August 2010, Roberto Bagnara wrote: > On 08/17/10 13:26, Stefano Lattarini wrote: > > At Tuesday 17 August 2010, Roberto Bagnara wrote: > >> I would like to test a new special-purpose compiler > >> (which is part of a bigger project) using the Automake > >> "simple tests" feature. > >> > >> I have two problems: > >> > >> 1) I have not found a way to force recompilation > >> > >> of all test programs whenever the compiler executable > >> has changed. Note that we are talking about > >> thousands of test programs so, if at all possible, > >> I would like to avoid listing that dependency > >> for each one of those. > > > > Maybe I don't understand the problem, but... what's wrong > > > > with: > > $(TESTS): your-special-purpose-compiler > > > > or something similar? > > That dependency cases relinking whenever the compiler > changes, whereas I need recompilation. Obviously you're right, sorry for not thinking this through. If every test program is built from a single `.c' file, what about using this instead: $(TESTS:=.o) your-special-purpose-compiler It should also be portable make AFAIK.
> Do you know if there is a way I can force Automake > to add a dependency on the compiler in the .c.o rule? > That is, to generate: > > .c.o: my-special-purpose-compiler > $(AM_V_CC) \ > $(COMPILE) -c $< > No, sorry; I don't even think it's possible (but I'm not sure about it, either). > >> 2) Automatic dependency tracking cannot work in > >> > >> that directory of the project (indeed, the only > >> dependency is on the compiler... all the test > >> programs are self-contained). How can I disably > >> automatic dependency tracking *only* on that > >> directory? > > > > What about adding `no-dependencies' to AUTOMAKE_OPTIONS > > in that directory's Makefile.am? > Yes, this works. Sorry for not having looked at the manual > carefully enough (not that I did not try). Well, I think it's not your fault: that option should be at least mentioned in the "Dependency Tracking" section. This can probably be seen as a documentation bug. Maybe I'll attempt a patch later or tomorrow. Regards, Stefano
