I don't think it is possible to find both required and optional libraries with the same find_package command. Is that true?
I have a installation of Boost which has a proposed library added into it called Boost.Log ('log' for short). I require the boost_program_options library but optionally can use 'log' and 'boost_thread' (if Boost.Log is compiled with threads). My idea was to do the following: find_package(Boost REQUIRED program_options) find_library(Boost.Log NAMES boost_log PATHS ${BOOST_LIBRARYDIR}) I am not sure if I can use the BOOST_LIBRARYDIR in the find_library command. My initial test says that the answer is no. If I use the above script in my CMakeLists.txt I get: //Path to a library. Boost_LOG_LIBRARY_DEBUG:FILEPATH=Boost_LOG_LIBRARY_DEBUG-NOTFOUND //Path to a library. Boost_LOG_LIBRARY_RELEASE:FILEPATH=Boost_LOG_LIBRARY_RELEASE-NOTFOUND I would like to have it so I can declare a variable to be added to the compiler flags to enable the preprocessor to use the library or compile out the instructions wrapped with #ifdef BOOST_LOG. Stephen _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake