diff -rupN netgen-mesher-git-94fd57154f556450a04808b244eb8c83e7a95fb6/libsrc/general/ngsimd.hpp netgen-mesher-git-94fd57154f556450a04808b244eb8c83e7a95fb6-new/libsrc/general/ngsimd.hpp
--- netgen-mesher-git-94fd57154f556450a04808b244eb8c83e7a95fb6/libsrc/general/ngsimd.hpp	2017-04-26 12:15:19.000000000 +0200
+++ netgen-mesher-git-94fd57154f556450a04808b244eb8c83e7a95fb6-new/libsrc/general/ngsimd.hpp	2017-05-11 10:42:00.287416467 +0200
@@ -6,7 +6,9 @@
 /* Date:   25. Mar. 16                                                    */
 /**************************************************************************/
 
-#include <immintrin.h>
+#if defined(__i386__) || defined(__x86_64__)
+# include <immintrin.h>
+#endif
 #include <tuple>
 #include <ostream>
 #include <stdexcept>