1PLATFORM= 2O=b/g 3IS_X64= 4IS_X86= 5IS_ARM64= 6CROSS_COMPILE= 7MY_ARCH= 8USE_ASM= 9CC=$(CROSS_COMPILE)gcc 10CXX=$(CROSS_COMPILE)g++ 11 12# -march=armv8-a+crc+crypto 13