turn off accept-clock-skew by default

direct/src/deadrec/config_deadrec.cxx

@@ -23,6 +23,11 @@ ConfigureFn(config_deadrec) {
   init_libdeadrec();
 }
 
+ConfigVariableBool accept_clock_skew
+("accept-clock-skew", false,
+ PRC_DESC("This controls the default value of "
+          "SmoothMover::get_accept_clock_skew()."));
+
 
 ////////////////////////////////////////////////////////////////////
 //     Function: init_libdeadrec

direct/src/deadrec/config_deadrec.h

@@ -17,9 +17,12 @@
 
 #include "directbase.h"
 #include "notifyCategoryProxy.h"
+#include "configVariableBool.h"
 
 NotifyCategoryDecl(deadrec, EXPCL_DIRECT, EXPTP_DIRECT);
 
+extern ConfigVariableBool accept_clock_skew;
+
 extern EXPCL_DIRECT void init_libdeadrec();
 
 #endif

direct/src/deadrec/smoothMover.cxx

@@ -15,6 +15,7 @@
 #include "smoothMover.h"
 #include "pnotify.h"
 #include "compose_matrix.h"
+#include "config_deadrec.h"
 
 ////////////////////////////////////////////////////////////////////
 //     Function: SmoothMover::Constructor
@@ -57,7 +58,7 @@ SmoothMover() {
   _smooth_mode = SM_off;
   _prediction_mode = PM_off;
   _delay = 0.2;
-  _accept_clock_skew = true;
+  _accept_clock_skew = accept_clock_skew;
   _directional_velocity = true;
   _default_to_standing_still = true;
   _max_position_age = 0.25;