diff --git a/hardsup/libhlib.a b/hardsup/libhlib.a
index dc93f1a..c9fc000 100644
Binary files a/hardsup/libhlib.a and b/hardsup/libhlib.a differ
diff --git a/libpsi.a b/libpsi.a
index 9e92f25..c22067f 100644
Binary files a/libpsi.a and b/libpsi.a differ
diff --git a/scontroller.c b/scontroller.c
index 703f8dc..0f44316 100644
--- a/scontroller.c
+++ b/scontroller.c
@@ -43,7 +43,7 @@ EXTERN void SerialMurder(ClientData pData)
 }
 /*------------------  a forward declaration -----------------------------*/
 EXTERN int SurielSend(ClientData clientData, Tcl_Interp *interp, 
-			int argc, char *argv[]);
+			int argc, CONST char *argv[]);
 
 /*----------------------------------------------------------------------------
 	Controller is the main entry point for this stuff. It connects to a motor
@@ -53,7 +53,7 @@ EXTERN int SurielSend(ClientData clientData, Tcl_Interp *interp,
 ---------------------------------------------------------------------------*/		
 
 int Controller(ClientData clientData, Tcl_Interp *interp, 
-			int argc, char *argv[])
+			int argc, CONST char *argv[])
 {
 	int iRet;
 	int iPort, iChannel, iMotor;
@@ -101,11 +101,11 @@ int Controller(ClientData clientData, Tcl_Interp *interp,
         /* check for optional force flag */
         if(argc > 5)
         {
-          iRet = SerialForceOpen(pData, argv[2],iPort,iChannel);
+          iRet = SerialForceOpen(pData, (char *)argv[2],iPort,iChannel);
         }
 
 	/* open the motor, finally */
-	iRet = SerialOpen(pData, argv[2],iPort,iChannel);
+	iRet = SerialOpen(pData, (char *)argv[2],iPort,iChannel);
 	if(iRet == 1) /* success */
 	{
 		/* handle TCL, create new command: the serial line */		
@@ -143,7 +143,7 @@ int Controller(ClientData clientData, Tcl_Interp *interp,
 
 ----------------------------------------------------------------------------*/	
 EXTERN int SurielSend(ClientData clientData, Tcl_Interp *interp, 
-			int argc,  char *argv[])
+			int argc,  CONST char *argv[])
 {
 	char pBueffel[256];
 	char pAnswer[256];
diff --git a/serial.c b/serial.c
index 2ee0fe0..0ee9ed4 100644
--- a/serial.c
+++ b/serial.c
@@ -12,7 +12,7 @@
 #include "sics.h"
 
    int Controller(ClientData clientData, Tcl_Interp *interp,
-                         int argc, char *argv[]);
+                         int argc, CONST char *argv[]);
                          
    int SerialInit(SConnection *pCon,SicsInterp *pSics, void *pData,
                   int argc, char *argv[])
diff --git a/tecs/libtecsl.a b/tecs/libtecsl.a
index fb7bc33..30650e5 100644
Binary files a/tecs/libtecsl.a and b/tecs/libtecsl.a differ