FM-TOWNS AUDIO: fix gcc warnings

audio/softsynth/fmtowns_pc98/towns_audio.cpp

@@ -1890,9 +1890,9 @@ void TownsAudioInterface::setSoundEffectChanMask(int mask) {
 }
 
 void TownsAudioInterface::lockInternal() {
-	_intf->lock();
+	_intf->mutexLock();
 }
 
 void TownsAudioInterface::unlockInternal() {
-	_intf->unlock();
+	_intf->mutexUnlock();
 }

audio/softsynth/fmtowns_pc98/towns_pc98_fmsynth.cpp

@@ -1147,7 +1147,7 @@ int TownsPC98_FmSynth::readBuffer(int16 *buffer, const int numSamples) {
 
 	bool locked = false;
 	if (_ready) {
-		lock();
+		mutexLock();
 		locked = true;
 	}
 
@@ -1201,7 +1201,7 @@ int TownsPC98_FmSynth::readBuffer(int16 *buffer, const int numSamples) {
 	}
 
 	if (locked)
-		unlock();
+		mutexUnlock();
 
 	delete[] tmpStart;
 
@@ -1220,11 +1220,11 @@ int TownsPC98_FmSynth::getRate() const {
 	return _mixer->getOutputRate();
 }
 
-void TownsPC98_FmSynth::lock() {
+void TownsPC98_FmSynth::mutexLock() {
 	_mutex.lock();
 }
 
-void TownsPC98_FmSynth::unlock() {
+void TownsPC98_FmSynth::mutexUnlock() {
 	_mutex.unlock();
 }
 

audio/softsynth/fmtowns_pc98/towns_pc98_fmsynth.h

@@ -73,8 +73,8 @@ public:
 	bool endOfData() const;
 	int getRate() const;
 
-	void lock();
-	void unlock();
+	void mutexLock();
+	void mutexUnlock();
 
 protected:
 	void deinit();