add_library(boost INTERFACE) target_include_directories(boost SYSTEM INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/libs/align/include/) target_include_directories(boost SYSTEM INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/libs/range/include/) target_include_directories(boost SYSTEM INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/libs/optional/include/) target_include_directories(boost SYSTEM INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/libs/utility/include/) target_include_directories(boost SYSTEM INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/libs/tuple/include/) target_include_directories(boost SYSTEM INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/libs/iterator/include/) target_include_directories(boost SYSTEM INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}) add_library(Boost::headers ALIAS boost)