if(TARGET mbgl-vendor-boost) return() endif() add_library( mbgl-vendor-boost INTERFACE ) target_include_directories( mbgl-vendor-boost SYSTEM INTERFACE ${CMAKE_CURRENT_LIST_DIR}/boost/include ) set_target_properties( mbgl-vendor-boost PROPERTIES INTERFACE_MAPBOX_NAME "Boost C++ Libraries" INTERFACE_MAPBOX_URL "https://www.boost.org" INTERFACE_MAPBOX_AUTHOR "Boost authors" INTERFACE_MAPBOX_LICENSE ${CMAKE_CURRENT_LIST_DIR}/boost/LICENSE_1_0.txt )