On Wednesday 16 October 2013, Magnus Therning wrote: > When defining a library via add_library() it's possible to link > against it by just putting its name into target_link_libraries(). Is > there some way of wrapping up an external library in a similar way? > > As a concrete example I'm playing around with gtest[1] via > externalproject_add() like this: > > externalproject_add(gtest > SOURCE_DIR ${PROJECT_SOURCE_DIR}/gtest > BINARY_DIR gtest-build > INSTALL_COMMAND "" # omit installation > ) > > Then to link to it I need to use > > target_link_libraries(test > -L${CMAKE_BINARY_DIR}/gtest-build -lgtest -lpthread > ) > > Is there some way to wrap that all up in a target that I can pass > straight to target_link_libraries()? > > Or is my only option to create a variable that expands to those > compiler flags?
You may create an imported target, and set some properties on it: add_library(gtest STATIC IMPORTED) set_target_properties(gtest PROPERTIES IMPORTED_LOCATION ${CMAKE_BINARY_DIR}/libgtest-build.a) You may need to set a few more properties like IMPORTED_LINK_INTERFACE_LIBRARIES, and you may want to use "${CMAKE_STATIC_LIBRARY_PREFIX}libgtest-build.${CMAKE_STATIC_LIBRARY_SUFFIX}" instead of hardcoding "lib" and "a". Alex -- 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://www.cmake.org/mailman/listinfo/cmake