Fixes for linux build

audiohandler.h

@@ -810,8 +810,6 @@ private:
     void reinit();
     quint16 getBuffer(int);
 
-    std::mutex mutex;
-
     bool            isInitialized;
     RtAudio audio;
     int audioDevice = 0;

wfmain.h

@@ -26,7 +26,7 @@
 #include "qledlabel.h"
 #include "rigctld.h"
 
-#include <../qcustomplot/qcustomplot.h>
+#include <qcustomplot.h>
 #include <qserialportinfo.h>
 
 namespace Ui {

wfview.pro

@@ -41,14 +41,14 @@ linux:DEFINES += __LINUX_ALSA__
 #linux:DEFINES += __LINUX_PULSE__
 macx:DEFINES += __MACOSX_CORE__
 
-option(RTAUDIO_API_DS "Build DirectSound API" OFF)
-option(RTAUDIO_API_ASIO "Build ASIO API" OFF)
-option(RTAUDIO_API_WASAPI "Build WASAPI API" ${WIN32})
-option(RTAUDIO_API_OSS "Build OSS4 API" ${xBSD})
-option(RTAUDIO_API_ALSA "Build ALSA API" ${LINUX})
-option(RTAUDIO_API_PULSE "Build PulseAudio API" ${pulse_FOUND})
-option(RTAUDIO_API_JACK "Build JACK audio server API" ${HAVE_JACK})
-option(RTAUDIO_API_CORE "Build CoreAudio API" ${APPLE})
+#option(RTAUDIO_API_DS "Build DirectSound API" OFF)
+#option(RTAUDIO_API_ASIO "Build ASIO API" OFF)
+#option(RTAUDIO_API_WASAPI "Build WASAPI API" ${WIN32})
+#option(RTAUDIO_API_OSS "Build OSS4 API" ${xBSD})
+#option(RTAUDIO_API_ALSA "Build ALSA API" ${LINUX})
+#option(RTAUDIO_API_PULSE "Build PulseAudio API" ${pulse_FOUND})
+#option(RTAUDIO_API_JACK "Build JACK audio server API" ${HAVE_JACK})
+#option(RTAUDIO_API_CORE "Build CoreAudio API" ${APPLE})
 
 macx:INCLUDEPATH += /usr/local/include /opt/local/include
 macx:LIBS += -L/usr/local/lib -L/opt/local/lib
@@ -121,7 +121,7 @@ SOURCES += main.cpp\
 	resampler/resample.c \
     repeatersetup.cpp \
 	rigctld.cpp \
-	rtaudio/RTAudio.cpp
+	rtaudio/RtAudio.cpp
 
 HEADERS  += wfmain.h \
     commhandler.h \
@@ -145,7 +145,7 @@ HEADERS  += wfmain.h \
     repeatersetup.h \
     repeaterattributes.h \
 	rigctld.h \
-	rtaudio/RTAudio.h
+	rtaudio/RtAudio.h
 
 
 FORMS    += wfmain.ui \