diff -up gprolog-1.4.0/src/EnginePl/obj_chain.h.tst gprolog-1.4.0/src/EnginePl/obj_chain.h
--- gprolog-1.4.0/src/EnginePl/obj_chain.h.tst	2011-06-29 18:47:02.423008140 +0200
+++ gprolog-1.4.0/src/EnginePl/obj_chain.h	2011-06-29 18:47:30.453999692 +0200
@@ -97,7 +97,4 @@ static PlLong obj_chain_start = (PlLong)
 #endif /* OBJ_INIT */
 
 
-
-#if defined(_MSC_VER) || defined(M_darwin)
 #define OBJ_CHAIN_REVERSE_ORDER
-#endif