forgot a define

src/hardware/hw_main.c

@@ -2380,7 +2380,7 @@ static void HWR_StoreWallRange(double startfrac, double endfrac)
 //
 // e6y: Check whether the player can look beyond this line, rturns true if we can't
 //
-
+#ifdef NEWCLIP
 boolean checkforemptylines = true;
 // Don't modify anything here, just check
 // Kalaron: Modified for sloped linedefs