Index: firmware/App/Controllers/BloodFlow.h
===================================================================
diff -u -rd80c4a21ab700d8197e292f34c86dad61828c45a -r5070f8552a200e15dcc2ca0532db10fba9dc8c6b
--- firmware/App/Controllers/BloodFlow.h	(.../BloodFlow.h)	(revision d80c4a21ab700d8197e292f34c86dad61828c45a)
+++ firmware/App/Controllers/BloodFlow.h	(.../BloodFlow.h)	(revision 5070f8552a200e15dcc2ca0532db10fba9dc8c6b)
@@ -68,7 +68,9 @@
 SELF_TEST_STATUS_T execBloodFlowTest( void );
 
 F32  getMeasuredBloodFlowRate( void );
+#ifdef USE_FMB_FLOW_SENSOR
 F32  getMeasuredBloodFlowSignalStrength( void);
+#endif
 F32  getMeasuredBloodPumpRotorSpeed( void );
 F32  getMeasuredBloodPumpSpeed( void );
 F32  getMeasuredBloodPumpMCSpeed( void );
@@ -87,8 +89,10 @@
 BOOL testResetMeasuredBloodPumpMCSpeedOverride( void );
 BOOL testSetMeasuredBloodPumpMCCurrentOverride( F32 value );
 BOOL testResetMeasuredBloodPumpMCCurrentOverride( void );
+#ifdef USE_FMB_FLOW_SENSOR
 BOOL testSetMeasuredBloodFlowSignalStrengthOverride( F32 value );
 BOOL testResetMeasuredBloodFlowSignalStrengthOverride( void );
+#endif
 
 /**@}*/