project(TCLAP C CXX) # Add a library using our ArcWelderSources variable from our sourcelist file add_library(${PROJECT_NAME} INTERFACE) target_include_directories(TCLAP INTERFACE /tclap) # Expose both TCLAP's public includes set(${PROJECT_NAME}_INCLUDE_DIRS ${PROJECT_SOURCE_DIR}/ CACHE INTERNAL "${PROJECT_NAME}: Include Directories" FORCE)