The package geotrans provides CMake targets: find_package(geotrans CONFIG REQUIRED) target_link_libraries(main PRIVATE geotrans::MSPdtcc geotrans::MSPCoordinateConversionService) The geotrans library depends on being able to read it's model data so you'll need to set an environment variable to let geotrans know where the models are installed: export MSPCCS_DATA=@CURRENT_INSTALLED_DIR@/share/@PORT@/data