diff -Naur newton-dynamics-3.14c.orig/CMakeLists.txt newton-dynamics-3.14c/CMakeLists.txt
--- newton-dynamics-3.14c.orig/CMakeLists.txt	2020-05-03 00:08:37.000000000 +0200
+++ newton-dynamics-3.14c/CMakeLists.txt	2020-11-30 20:53:38.420522700 +0100
@@ -182,7 +182,11 @@
 elseif(MINGW)
-	add_compile_options(-msse3)
+	if (CMAKE_SYSTEM_PROCESSOR MATCHES "ARM64")
+		add_compile_options(-march=armv8.2-a)
+	else()
+		add_compile_options(-msse3)
+	endif()

-	if(CMAKE_CL_64)
+	if(BUILD_64)
 		message("build 64 bit")
 	else()
 		message("build 32 bit")
