+--- metakit-2.4.9.7/include/mk4.h~ 2015-12-22 08:45:55.000000000 +0100
++++ metakit-2.4.9.7/include/mk4.h 2015-12-22 08:47:41.682352786 +0100
+@@ -101,7 +101,7 @@
+ // and here's the other end of the scale...
+ #if !defined (_WIN32) && !defined (q4_LONG64)
+ #if defined (_PA_RISC2_0) || defined (__powerpc64__) || defined(__sparcv9) || \
+-defined(__x86_64__) || defined(__s390x__) || defined(__alpha) || \
++(defined(__x86_64__) && !defined(__ILP32__)) || defined(__s390x__) || defined(__alpha) || \
+ (defined(__ia64) && (!defined(__HP_aCC) || defined(__LP64__))) || \
+ (defined(__sparc__) && defined(__arch64__))
+ #define q4_LONG64 1