1cmake_minimum_required(VERSION 3.13.4) 2project(LLVM_RUNTIMES C CXX ASM) 3 4set(CMAKE_BUILD_WITH_INSTALL_NAME_DIR ON) 5 6find_package(Python3 COMPONENTS Interpreter) 7if(NOT Python3_Interpreter_FOUND) 8 message(WARNING "Python3 not found, using python2 as a fallback") 9 find_package(Python2 COMPONENTS Interpreter REQUIRED) 10 if(Python2_VERSION VERSION_LESS 2.7) 11 message(SEND_ERROR "Python 2.7 or newer is required") 12 endif() 13 14 # Treat python2 as python3 15 add_executable(Python3::Interpreter IMPORTED) 16 set_target_properties(Python3::Interpreter PROPERTIES 17 IMPORTED_LOCATION ${Python2_EXECUTABLE}) 18 set(Python3_EXECUTABLE ${Python2_EXECUTABLE}) 19endif() 20 21# This needs to be set before we add any Lit target for `add_lit_target` to 22# select the right Lit to run the tests. 23set(LLVM_LIT_OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}/bin") 24 25# Automatically define a few variables that are normally set globally by LLVM. 26# This is to keep some amount of similarity between the global LLVM build and 27# this minimal build. 28set(LLVM_UMBRELLA_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/../../../..") 29list(APPEND CMAKE_MODULE_PATH "${LLVM_UMBRELLA_ROOT}/libcxx/cmake/Modules") 30include(HandleOutOfTreeLLVM) 31 32# Override the external Lit to make sure we use the one we generate below. 33# TODO: We can remove this once we start relying on the in-tree version of Lit 34# in HandleOutOfTreeLLVM. 35set(LLVM_DEFAULT_EXTERNAL_LIT "") 36 37# Include individual runtime projects 38set(LLVM_ENABLE_PROJECTS "" CACHE STRING "Semicolon-separated list of runtimes to build.") 39foreach(project IN LISTS LLVM_ENABLE_PROJECTS) 40 add_subdirectory("${LLVM_UMBRELLA_ROOT}/${project}" "${CMAKE_CURRENT_BINARY_DIR}/${project}") 41endforeach() 42 43# Generate the llvm-lit wrapper, needed for testing. This must be done after 44# the projects have been added, since the wraper is only generated correctly 45# if the test suites have already been added with add_lit_target. 46add_subdirectory("${LLVM_UMBRELLA_ROOT}/llvm/utils/llvm-lit" "${CMAKE_CURRENT_BINARY_DIR}/llvm-lit") 47