set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=armv7-a -mfpu=neon -mcpu=cortex-a9")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=armv7-a -mfpu=neon -mcpu=cortex-a9")
set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -march=armv7-a -mfpu=neon -mcpu=cortex-a9")