@ -447,6 +447,7 @@ else()
endif(CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64")
# aarch
if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
INCLUDE(CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG("-march=armv8-a+crc+crypto" HAS_ARMV8_CRC)
if(HAS_ARMV8_CRC)
message(STATUS " HAS_ARMV8_CRC yes")