1PLATFORM=x64 2O=b/g_$(PLATFORM) 3IS_X64=1 4IS_X86= 5IS_ARM64= 6CROSS_COMPILE= 7MY_ARCH=-mavx512f -mavx512vl 8MY_ARCH= 9USE_ASM=1 10CC=$(CROSS_COMPILE)gcc 11CXX=$(CROSS_COMPILE)g++ 12