diff -Naur harfbuzz-1.2.6.orig/src/hb.h harfbuzz-1.2.6/src/hb.h
--- harfbuzz-1.2.6.orig/src/hb.h	2016-01-06 04:00:36.000000000 -0800
+++ harfbuzz-1.2.6/src/hb.h	2016-06-15 05:30:43.212202580 -0700
@@ -32,6 +32,9 @@
 #define HB_EXTERN extern
 #endif
 
+#ifdef __x86_64__
+#include <emmintrin.h>
+#endif
 #include "hb-blob.h"
 #include "hb-buffer.h"
 #include "hb-common.h"