tiny/usiTwiSlave.h/c : Make usi_onRequestPtr,usi_onRecievePtr extern and include <stdddef.h> to fix compilation errors apparently caused by new version of compiler.

control/tiny/usiTwiSlave.c

 /********************************************************************************
                                     includes
 ********************************************************************************/
-
+#include <stddef.h>
 #include <avr/io.h>
 #include <avr/interrupt.h>
 
 #include "usiTwiSlave.h"
 //#include "../common/util.h"
 
+//request_func_t _onTwiDataRequest = NULL;
+request_func_t usi_onRequestPtr = NULL;
+receive_func_t usi_onReceiverPtr = NULL;
 
 /********************************************************************************
                             device dependent defines

control/tiny/usiTwiSlave.h

 
 
 
+
 /********************************************************************************
 
                                     includes
 
 ********************************************************************************/
 
+
 void    usiTwiSlaveInit( uint8_t );
 void    usiTwiTransmitByte( uint8_t );
 uint8_t usiTwiReceiveByte( void );
 bool    usiTwiDataInReceiveBuffer( void );
-void    (*_onTwiDataRequest)(void);
+//void    (*_onTwiDataRequest)(void);
+
+//extern request_func_t _onTwiDataRequest;
+
 bool    usiTwiDataInTransmitBuffer(void);
 uint8_t usiTwiAmountDataInReceiveBuffer(void);
 // on_XXX handler pointers
-void    (*usi_onRequestPtr)(void);
-void    (*usi_onReceiverPtr)(uint8_t);
+//void    (*usi_onRequestPtr)(void);
+//void    (*usi_onReceiverPtr)(uint8_t);
+
+typedef void (*request_func_t)(void);
+typedef void (*receive_func_t)(uint8_t);
 
+extern request_func_t usi_onRequestPtr;
+extern receive_func_t usi_onReceiverPtr;
 
 /********************************************************************************