On 04/16/2011 12:05 AM, Oliver Buchtala wrote: > Am 15.04.2011 23:48, schrieb Michael Hertling: >> On 04/15/2011 11:22 PM, Oliver Buchtala wrote: >>> Hi, >>> >>> I observe that a custom command attached to a custom target as >>> POST-BUILD is launched on every build. >>> Is that true? or is it a misconfiguration on my side? >>> >>> Bye, >>> Oliver >> A custom target is always out of date, i.e. it is always rebuilt when >> it is visited - as a prerequisite of another target or due to the ALL >> clause, e.g., and since the target has been rebuilt, each associated >> POST_BUILD custom command is rerun. Thus, the behaviour you observed >> is correct, expected and reasonable, IMO. >> >> Regards, >> >> Michael > Yep. That's reasonable. > > Do have a suggestion how to get around a rerun of the post-build?
Prevent the custom target from being visited, i.e. from being checked if it's up to date since it will be found to be out of date, so the immediately associated commands - if any - are run as well as the associated POST_BUILD custom commands. > Or how would you do a post-build after custom-target without being run > when custom-target actually did nothing, What do you mean with a custom target that "actually did nothing"? Not visited or no own commands? In the former case, the associated custom commands are not run, of course, but in the latter case, it does not matter if there are immediately associated commands or not since the target will be considered as out of date and rebuilt-without-op, and its POST_BUILD custom commands will be run. In other words: A custom target - even without own commands - is not good for preventing its custom commands from being run when the custom target is visited. > i.e., custom target depends on custom command that did nothing? The same holds for this kind of dependency, i.e. the visited custom target will be rebuilt regardless whether the prerequisite custom command did do something or not, or do you still talk about the custom-command-associated-with-custom-target dependency? Regards, Michael _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
