Do not use the -match=native flag.
--- CMakeLists.txt
+++ CMakeLists.txt
@@ -57,12 +57,6 @@ endif()
 if(NOT MSVC)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra ${LIBFIVE_DEBUGGING}-fPIC -pedantic -Werror=switch")
 
-    # Sometimes this flag is not supported (e.g. on Apple Silicon)
-    check_cxx_compiler_flag("-march=native" MARCH_SUPPORTED)
-    if(MARCH_SUPPORTED)
-        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native")
-    endif()
-
     set(CMAKE_CXX_FLAGS_DEBUG "-O0")
     set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3 -DEIGEN_NO_DEBUG")
 else()