By manually deleting (or touching) the stamp file associated with the earliest step you need to re-run.
ExternalProject is not for auto-detecting changes to stuff and minimally re-running build steps. It's for static stuff that doesn't change much. Find the "-build" stamp file that's associated with the project containing the source you changed and delete it. Then run the build from the top and that one and everything that depends on it afterwards should rebuild. HTH, David C. On Thu, Sep 21, 2017 at 7:09 AM, J Decker <d3c...@gmail.com> wrote: > how do I make sure that externalprojects get built if I change a source in > one? > > > > -- > > Powered by www.kitware.com > > Please keep messages on-topic and check the CMake FAQ at: > http://www.cmake.org/Wiki/CMake_FAQ > > Kitware offers various services to support the CMake community. For more > information on each offering, please visit: > > CMake Support: http://cmake.org/cmake/help/support.html > CMake Consulting: http://cmake.org/cmake/help/consulting.html > CMake Training Courses: http://cmake.org/cmake/help/training.html > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/cmake -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake
