Absolutely. Please find the example project here: https://github.com/samaursa/cmake_fetch_content_and_generator_expressions
The repository README also includes the output from running `./setup.sh`. On Sat, Mar 17, 2018 at 6:47 PM Craig Scott <[email protected]> wrote: > 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
