Can you provide a small project example that can be used to demonstrate your problem? The specifics of how you are doing things may be important.
On Sun, Mar 18, 2018 at 8:12 AM, Saad Khattak <[email protected]> wrote: > Hi, > > ExternalProject_Add builds, generates and installs and thus any generator > expressions used will be expanded by the time another library uses it. > > For example, if I add a library LibA using ExternalProject_Add, I can then > query the target property INTERFACE_INCLUDE_DIRECTORIES and get the include > directory for the library: > > get_target_property(LibA_INCLUDE_DIRECTORIES LibA > INTERFACE_INCLUDE_DIRECTORIES > ) > > This allows me to then use the variable LibA_INCLUDE_DIRECTORIES in my > CMake include(...) statements. However, with FetchContent, this is no > longer possible. > > The reason I would like to query a variable is because at project > generation time, I invoke FetchContent only if LibA is not found by > find_package(LibA). > > Thus, the include directory for LibA may be in the current build directory > (through FetchContent) OR it may be found in the folder where LibA is > cloned by the user and generated/built OR an INSTALL of LibA. > > Perhaps I should not be using `get_target_property` to get the a library's > include directory? Either way, would like some guidance in solving this > issue. > > Thank you, > Saad > > > -- > > 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 > > -- Craig Scott Melbourne, Australia https://crascit.com
-- 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
