On 2019-10-13 17:15-0400 Paul Smith wrote:
A unity source file can lump together N real source files from the same target (library/executable) as long as those files don't have extra source-specific flags, because all other files in a given target have the same flags.
I agree that it is not at all clear whether this is the cause of the issue. So I will stop speculating about that cause even though that is a fun activity. :-) Nevertheless, it does sound like your complex test case does expose some issue with EITHER how you have implemented the build system for your complex case OR how CMake currently rejects certain builds from being included in Unity builds. So to figure out which it is, I think your next step should be to attempt to implement the simplest possible self-contained test case that illustrates the Unity exclusion issue you have found. I believe that course has already been suggested in this thread so I am seconding that motion. My own experiences with such implementations is I often cannot demonstrate the issue in a simple way, i.e., the "CMake bug" often tends to be due to an issue with my implementation of the build system for the complex case. However, when I have demonstrated with such a simple test case there really is a CMake bug, that test case normally helps CMake developers in a big way to find and fix the issue. Alan __________________________ Alan W. Irwin Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); the Time Ephemerides project (timeephem.sf.net); PLplot scientific plotting software package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ -- 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
