--- gambit-v4_8_4-devel/include/gambit.h.in.orig	2016-01-26 05:55:30.000000000 +0700
+++ gambit-v4_8_4-devel/include/gambit.h.in	2016-02-29 00:03:00.880809119 +0700
@@ -2962,7 +2962,7 @@
 
 /* APPLY-able operations */
 
-#define ___F64TOFIX(x)___FIX(x)
+#define ___F64TOFIX(x)___FIX(___CAST(___WORD,x))
 #define ___F64FROMFIX(x)___INT(x)
 #define ___F64_0 0.0
 #define ___F64POS(x)x