MacOS M1 (Venture) build warning fixes

Changed x64 to arm64 output architecture for Mac M1
Fixed few "warning: missing field __opaque initializer" warnings
Updated CMakeList.txt from 2.8 to 3.0 minimal to supress cmake warning
Changed LIQUID to Liquid cmake package detection

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required (VERSION 2.8)
+cmake_minimum_required (VERSION 3.0)
 
 project (CubicSDR)
 
@@ -142,7 +142,7 @@ endmacro(configure_files_recurse)
 if( CMAKE_SIZEOF_VOID_P EQUAL 8 )
     MESSAGE( "64 bit compiler detected" )
     SET( EX_PLATFORM 64 )
-    SET( EX_PLATFORM_NAME "x64" )
+    SET( EX_PLATFORM_NAME "${CMAKE_SYSTEM_PROCESSOR}" )
 else( CMAKE_SIZEOF_VOID_P EQUAL 8 ) 
     MESSAGE( "32 bit compiler detected" )
     SET( EX_PLATFORM 32 )

cmake/Modules/FindLiquid.cmake

@@ -17,6 +17,6 @@ find_library (LIQUID_LIBRARIES NAMES liquid)
 # handle the QUIETLY and REQUIRED arguments and set LIQUID_FOUND to TRUE if
 # all listed variables are TRUE
 include (FindPackageHandleStandardArgs)
-find_package_handle_standard_args (LIQUID DEFAULT_MSG LIQUID_LIBRARIES LIQUID_INCLUDES)
+find_package_handle_standard_args (Liquid DEFAULT_MSG LIQUID_LIBRARIES LIQUID_INCLUDES)
 
 #mark_as_advanced (LIQUID_LIBRARIES LIQUID_INCLUDES)

external/rtaudio/RtAudio.cpp

@@ -990,9 +990,7 @@ bool RtApiCore :: probeDeviceOpen( unsigned int device, StreamMode mode, unsigne
   AudioDeviceID id = deviceList[ device ];
 
   // Setup for stream mode.
-  bool isInput = false;
   if ( mode == INPUT ) {
-    isInput = true;
     property.mScope = kAudioDevicePropertyScopeInput;
   }
   else

src/AppFrame.cpp

@@ -1631,7 +1631,6 @@ bool AppFrame::actionOnMenuAudioSampleRate(wxCommandEvent& event) {
 
         auto outputDevices = wxGetApp().getDemodMgr().getOutputDevices();
 
-        int i = 0;
         for (auto & outputDevice : outputDevices) {
             int menu_id = wxID_AUDIO_BANDWIDTH_BASE + wxID_AUDIO_DEVICE_MULTIPLIER * outputDevice.first;
 
@@ -1649,7 +1648,6 @@ bool AppFrame::actionOnMenuAudioSampleRate(wxCommandEvent& event) {
 
                 j++;
             }
-            i++;
         }
     }
 
@@ -1980,6 +1978,8 @@ bool AppFrame::actionOnMenuRig(wxCommandEvent &event) {
         wxGetApp().stopRig();
         wxGetApp().initRig(rigModel, rigPort, rigSerialRate);
     }
+#else
+    (void)event; // Suppres build warning
 #endif
 
     return bManaged;

src/audio/AudioSinkThread.cpp

@@ -17,7 +17,7 @@ void AudioSinkThread::run() {
 #ifdef __APPLE__
     pthread_t tID = pthread_self();	 // ID of this thread
     int priority = sched_get_priority_max(SCHED_RR) - 1;
-    sched_param prio = { priority }; // scheduling priority of thread
+    sched_param prio = { priority, {0}}; // scheduling priority of thread
     pthread_setschedparam(tID, SCHED_RR, &prio);
 #endif
 

src/audio/AudioThread.cpp

@@ -472,7 +472,7 @@ void AudioThread::run() {
 #ifdef __APPLE__
     pthread_t tID = pthread_self();	 // ID of this thread
     int priority = sched_get_priority_max(SCHED_RR) - 1;
-    sched_param prio = { priority }; // scheduling priority of thread
+    sched_param prio = { priority, {0}}; // scheduling priority of thread
     pthread_setschedparam(tID, SCHED_RR, &prio);
 #endif
 

src/demod/DemodulatorPreThread.cpp

@@ -55,7 +55,7 @@ void DemodulatorPreThread::run() {
 #ifdef __APPLE__
     pthread_t tID = pthread_self();  // ID of this thread
     int priority = sched_get_priority_max( SCHED_FIFO) - 1;
-    sched_param prio = {priority}; // scheduling priority of thread
+    sched_param prio = {priority, {0}}; // scheduling priority of thread
     pthread_setschedparam(tID, SCHED_FIFO, &prio);
 #endif
 

src/demod/DemodulatorThread.cpp

@@ -70,7 +70,7 @@ void DemodulatorThread::run() {
 #ifdef __APPLE__
     pthread_t tID = pthread_self();  // ID of this thread
     int priority = sched_get_priority_max( SCHED_FIFO )-1;
-    sched_param prio = {priority}; // scheduling priority of thread
+    sched_param prio = {priority, {0}}; // scheduling priority of thread
     pthread_setschedparam(tID, SCHED_FIFO, &prio);
 #endif
     

src/sdr/SDRPostThread.cpp

@@ -153,7 +153,7 @@ void SDRPostThread::run() {
 #ifdef __APPLE__
     pthread_t tID = pthread_self();  // ID of this thread
     int priority = sched_get_priority_max( SCHED_FIFO);
-    sched_param prio = {priority}; // scheduling priority of thread
+    sched_param prio = {priority, {0}}; // scheduling priority of thread
     pthread_setschedparam(tID, SCHED_FIFO, &prio);
 #endif
 

src/visual/SpectrumCanvas.cpp

@@ -180,7 +180,7 @@ bool SpectrumCanvas::getUseDBOfs() {
     return spectrumPanel.getUseDBOffset();
 }
 
-void SpectrumCanvas::setView(long long center_freq_in, int bandwidth_in) {
+void SpectrumCanvas::setView(long long center_freq_in, long long bandwidth_in) {
     bwChange += bandwidth_in-bandwidth;
     #define BW_RESET_TH 400000
     if (bwChange > BW_RESET_TH || bwChange < -BW_RESET_TH) {

src/visual/SpectrumCanvas.h

@@ -39,7 +39,7 @@ public:
     void setUseDBOfs(bool showDb);
     bool getUseDBOfs();
     
-    void setView(long long center_freq_in, int bandwidth_in);
+    void setView(long long center_freq_in, long long bandwidth_in) override;
     void disableView() override;
 
     void setScaleFactorEnabled(bool en);