cmake_policy(SET CMP0157 NEW) cmake_policy(SET CMP0195 NEW) cmake_policy(SET CMP0215 NEW) if(NOT CMAKE_GENERATOR MATCHES "Ninja") message(SEND_ERROR "this test must use a Ninja generator, found ${CMAKE_GENERATOR} ") endif() enable_language(Swift) add_library(L STATIC L.swift) add_library(LClient STATIC LClient.swift) target_link_libraries(LClient PRIVATE L)