Fix a few more warnings, cleanup

source/libjack/libjack.cpp

@@ -987,6 +987,9 @@ void CarlaJackAppClient::runRealtimeThread()
     fNonRealtimeThread.signalThreadShouldExit();
 
     carla_debug("CarlaJackAppClient runRealtimeThread FINISHED");
+
+    // TODO
+    return; (void)quitReceived;
 }
 
 void CarlaJackAppClient::runNonRealtimeThread()

source/modules/water/files/juce_File.cpp

@@ -211,7 +211,7 @@ String File::addTrailingSeparator (const String& path)
 }
 
 //==============================================================================
-#if JUCE_LINUX
+#if ! (defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN))
  #define NAMES_ARE_CASE_SENSITIVE 1
 #endif
 
@@ -371,8 +371,10 @@ bool File::isAChildOf (const File& potentialParent) const
     return getParentDirectory().isAChildOf (potentialParent);
 }
 
+#if 0
 int   File::hashCode() const    { return fullPath.hashCode(); }
 int64 File::hashCode64() const  { return fullPath.hashCode64(); }
+#endif
 
 //==============================================================================
 bool File::isAbsolutePath (StringRef path)
@@ -927,7 +929,7 @@ bool File::createSymbolicLink (const File& linkFileToCreate, bool overwriteExist
             linkFileToCreate.deleteFile();
     }
 
-   #if JUCE_MAC || JUCE_LINUX
+   #ifndef CARLA_OS_WIN
     // one common reason for getting an error here is that the file already exists
     if (symlink (fullPath.toRawUTF8(), linkFileToCreate.getFullPathName().toRawUTF8()) == -1)
     {

source/modules/water/threads/juce_Process.h

@@ -140,21 +140,6 @@ public:
     static void JUCE_CALLTYPE setCurrentModuleInstanceHandle (void* newHandle) noexcept;
    #endif
 
-   #if JUCE_MAC || DOXYGEN
-    //==============================================================================
-    /** OSX ONLY - Shows or hides the OSX dock icon for this app. */
-    static void setDockIconVisible (bool isVisible);
-   #endif
-
-   #if JUCE_MAC || JUCE_LINUX || DOXYGEN
-    //==============================================================================
-    /** UNIX ONLY - Attempts to use setrlimit to change the maximum number of file
-        handles that the app can open. Pass 0 or less as the parameter to mean
-        'infinite'. Returns true if it succeeds.
-    */
-    static bool setMaxNumberOfFileHandles (int maxNumberOfFiles) noexcept;
-   #endif
-
 private:
     Process();
     JUCE_DECLARE_NON_COPYABLE (Process)

source/modules/water/xml/juce_XmlElement.cpp

@@ -251,7 +251,7 @@ namespace XmlOutputFunctions
                         outputStream << (char) character;
                         break;
                     }
-                    // Note: deliberate fall-through here!
+                    // fall-through
                 default:
                     outputStream << "&#" << ((int) character) << ';';
                     break;