diff -r c8e008b8cefe -r 72a826dfcfbb targets/Linux/plc_Linux_main.c
--- a/targets/Linux/plc_Linux_main.c	Wed Mar 13 12:34:55 2013 +0900
+++ b/targets/Linux/plc_Linux_main.c	Wed Jul 31 10:45:07 2013 +0900
@@ -11,7 +11,6 @@
 #include <locale.h>
 #include <semaphore.h>
 
-extern unsigned long long common_ticktime__;
 static sem_t Run_PLC;
 
 long AtomicCompareExchange(long* atomicvar,long compared, long exchange)
@@ -97,8 +96,6 @@
 {
     struct sigevent sigev;
     setlocale(LC_NUMERIC, "C");
-    /* Define Ttick to 1ms if common_ticktime not defined */
-    Ttick = common_ticktime__?common_ticktime__:1000000;
 
     PLC_shutdown = 0;