Index: src/macros.h
==================================================================
--- src/macros.h
+++ src/macros.h
@@ -108,10 +108,12 @@
 #   define OF_ARMV6_ASM
 #  endif
 #  ifdef OF_ARMV7_ASM
 #   define OF_ARMV6_ASM
 #  endif
+# elif defined(__arm64__) || defined(__aarch64__)
+#  define OF_ARM64_ASM
 # endif
 #endif
 
 #define OF_ENSURE(cond)							\
 	if (!(cond)) {							\