set(CMAKE_CXX_EXTENSIONS OFF) set(CMAKE_CXX_STANDARD 17) set(CMAKE_CXX_STANDARD_REQUIRED ON) set(CMAKE_C_STANDARD 11) set(CMAKE_C_STANDARD_REQUIRED ON) if(NOT ARCH_ID) if(CMAKE_SYSTEM_PROCESSOR STREQUAL "") set(CMAKE_SYSTEM_PROCESSOR ${CMAKE_HOST_SYSTEM_PROCESSOR}) endif() string(TOLOWER "${CMAKE_SYSTEM_PROCESSOR}" ARCH_ID) endif() if (ARCH_ID MATCHES "^(aarch64|arm64|armv8-a)$") set(ARMv8 1) endif() if (ARCH_ID MATCHES "^(x86_64|x86-64|amd64)$") set(AMD64 1) endif()