Merge branch 'master' of ssh://git.code.sf.net/p/yap/yap-7.3

C/pl-yap.c

@@ -1299,10 +1299,13 @@ sysError(const char *fm, ...)
 
 int
 raiseSignal(PL_local_data_t *ld, int sig)
-{ if (sig == SIG_THREAD_SIGNAL) {
+{
+#if THREADS
+ if (sig == SIG_THREAD_SIGNAL) {
      Yap_signal(YAP_ITI_SIGNAL);
      return TRUE;    
   }
+#endif
   fprintf(stderr, "Unsupported signal %d\n", sig);
   return FALSE;
 }

H/eval.h

@@ -42,6 +42,9 @@
 #define Int_MIN  (-Int_MAX-(CELL)1)
 #endif
 
+#define PLMAXINT Int_MAX
+#define PLMININT Int_MIN
+
 typedef enum {
   op_pi,
   op_e,