I agree that we should document this property better. I recommend looking at the CMake wiki ( https://gitlab.kitware.com/cmake/community/wikis/home ) and thinking maybe adding a new recipe for `optimizing redundant linking`.
On Thu, Feb 14, 2019 at 3:11 PM Itay Chamiel <itay.cham...@orcam.com> wrote: > > On Thu, Feb 14, 2019 at 8:08 PM Robert Maynard > <robert.mayn...@kitware.com> wrote: > > By default CMake wants to get a correct build 100% of the time. There > > is nothing to stop people from having functions defined in a .cxx file > > with no corresponding header, and using manual forward deceleration is > > used in a consuming library/executable. By setting > > `LINK_DEPENDS_NO_SHARED` to `True` you will convert what was a link > > time error ( renaming the function in the .cxx ) to a run time error. > > First of all, thanks for the answer - it's good to understand the > rationale and to know that in our use case we can safely use this > setting. > > On the question of whether to set this as the default, I understand > your position and I personally disagree - but do not wish to start a > debate. However I will say that this simple change has, in a common > case, reduced my build time from 5 minutes to 15 seconds. At the very > least could you consider steps to make this setting more known and > accessible? (No one on Stack Overflow knew about it, and I think > that's saying something.) Perhaps put it in a FAQ, and/or more > prominently in the documentation. > > Kind regards, > > itay > -- > > 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: > https://cmake.org/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: https://cmake.org/mailman/listinfo/cmake
