+# Check if compiler supports march=core-avx2
+CC_CHECK_FLAG("-march=core-avx2")
+AS_IF([test "$cc_flag_check" = yes],
+ [march_core_avx2=yes],
+ [march_core_avx2=no])
+AM_CONDITIONAL([CC_SUPPORTS_AVX2], [test "$march_core_avx2" = "yes"])
+
+# Check if compiler supports march=skylake-avx512
+CC_CHECK_FLAG("-march=skylake-avx512")
+AS_IF([test "$cc_flag_check" = yes],
+ [march_skylake_avx512=yes],
+ [march_skylake_avx512=no])
+AM_CONDITIONAL([CC_SUPPORTS_AVX512], [test "$march_skylake_avx512" = "yes"])
+