fix situation where we might assume nonextsing double initialisation of C predicates (use

Hidden Pred Flag).
$host_type was double initialised.


git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1177 b08c6af1-5177-4d33-ba66-4b1c6b8b522a

include/yap_structs.h

@@ -92,6 +92,8 @@ typedef struct {
   /* if NON-0, say how long to keep nodes (default = 3) */
   int DelayedReleaseLoad;
   /* end of YAPOR fields */
+  /* whether Prolog should handle interrupts */
+  int PrologShouldHandleInterrupts;
   /* number of arguments that Prolog will see */
   int Argc;
   /* array of arguments as seen by Prolog */