[sky9x, taranis] Compilation problem

src/audio_arm.h

@@ -222,4 +222,9 @@ extern void refreshSystemAudioFiles();
 extern void refreshModelAudioFiles();
 extern bool isAudioFileAvailable(uint32_t i, char * filename);
 
+// TODO not public, everything could be inside a function in audio_arm.cpp
+extern OS_TCID audioTimer;
+extern OS_FlagID audioFlag;
+extern OS_MutexID audioMutex;
+
 #endif

src/taranis/sport_driver.cpp

@@ -85,6 +85,8 @@ void sportPutc(const char c)
   GPIO_ResetBits(GPIO_PIN_SPORT_ON, PIN_SPORT_ON);
 }
 
+void processSerialData(uint8_t data);
+
 #if !defined(SIMU)
 extern "C" void USART2_IRQHandler()
 {