Hello all,
Yes, I experience the same. I tried a realclean, but after a complete rebuild they still occur.
I expect that there is an auto-generated file that changes when the thorn list changes. Could it be cctk.h itself?
I think I also have had these happen when I added a thorn to my thornlist. This at least should be straightforward to check.
I have also had unexpected compilations happen at least once when all I did was modify an existing thorn (though I might have modified its interface.ccl, in particular its public variables, as well though McLachlan should not care about public variables in GRHydro).
I also had issues where the system would not pick up a newly created configuration.ccl (to REQUIRE Carpet in Zelmani's QuadWaveExtract) unless I did a manual make sim-rebuild. This however I think might not be related.
Yours, Roland