diff -up simgear-3.6.0/simgear/nasal/naref.h.aarch64 simgear-3.6.0/simgear/nasal/naref.h

--- simgear-3.6.0/simgear/nasal/naref.h.aarch64	2015-09-10 16:33:06.288596457 -0400

+++ simgear-3.6.0/simgear/nasal/naref.h	2015-09-10 16:36:41.912146487 -0400

@@ -19,7 +19,7 @@

 # endif

 #elif defined(_M_IX86) || defined(__i386) || defined(__x86_64) || \

       defined(__ia64__) || defined(_M_IA64) || defined(__ARMEL__) || \

-      defined(_M_X64) || defined(_M_ARM)

+      defined(_M_X64) || defined(_M_ARM) || defined(__aarch64__)

 # define NASAL_LE

 #elif defined(__sparc) || defined(__ARMEB__) || \

       defined(__hppa__) || defined(__s390__) || defined(__s390x__)