fix macOS build (following Projucer changes made in Windows, which removed /Applications/JUCE/modules from its headers). move JUCE headers under source control, so that Windows and macOS can both build against same version of JUCE. remove AUv3 target (I think it's an iOS thing, so it will never work with this macOS fluidsynth dylib).

modules/juce_audio_utils/gui/juce_AudioDeviceSelectorComponent.h

@@ -0,0 +1,123 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2017 - ROLI Ltd.
+
+   JUCE is an open source library subject to commercial or open-source
+   licensing.
+
+   By using JUCE, you agree to the terms of both the JUCE 5 End-User License
+   Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
+   27th April 2017).
+
+   End User License Agreement: www.juce.com/juce-5-licence
+   Privacy Policy: www.juce.com/juce-5-privacy-policy
+
+   Or: You may also use this code under the terms of the GPL v3 (see
+   www.gnu.org/licenses).
+
+   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
+   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
+   DISCLAIMED.
+
+  ==============================================================================
+*/
+
+namespace juce
+{
+
+//==============================================================================
+/**
+    A component containing controls to let the user change the audio settings of
+    an AudioDeviceManager object.
+
+    Very easy to use - just create one of these and show it to the user.
+
+    @see AudioDeviceManager
+
+    @tags{Audio}
+*/
+class JUCE_API  AudioDeviceSelectorComponent  : public Component,
+                                                private ChangeListener,
+                                                private Timer
+{
+public:
+    //==============================================================================
+    /** Creates the component.
+
+        If your app needs only output channels, you might ask for a maximum of 0 input
+        channels, and the component won't display any options for choosing the input
+        channels. And likewise if you're doing an input-only app.
+
+        @param deviceManager            the device manager that this component should control
+        @param minAudioInputChannels    the minimum number of audio input channels that the application needs
+        @param maxAudioInputChannels    the maximum number of audio input channels that the application needs
+        @param minAudioOutputChannels   the minimum number of audio output channels that the application needs
+        @param maxAudioOutputChannels   the maximum number of audio output channels that the application needs
+        @param showMidiInputOptions     if true, the component will allow the user to select which midi inputs are enabled
+        @param showMidiOutputSelector   if true, the component will let the user choose a default midi output device
+        @param showChannelsAsStereoPairs    if true, channels will be treated as pairs; if false, channels will be
+                                        treated as a set of separate mono channels.
+        @param hideAdvancedOptionsWithButton    if true, only the minimum amount of UI components
+                                        are shown, with an "advanced" button that shows the rest of them
+    */
+    AudioDeviceSelectorComponent (AudioDeviceManager& deviceManager,
+                                  int minAudioInputChannels,
+                                  int maxAudioInputChannels,
+                                  int minAudioOutputChannels,
+                                  int maxAudioOutputChannels,
+                                  bool showMidiInputOptions,
+                                  bool showMidiOutputSelector,
+                                  bool showChannelsAsStereoPairs,
+                                  bool hideAdvancedOptionsWithButton);
+
+    /** Destructor */
+    ~AudioDeviceSelectorComponent();
+
+    /** The device manager that this component is controlling */
+    AudioDeviceManager& deviceManager;
+
+    /** Sets the standard height used for items in the panel. */
+    void setItemHeight (int itemHeight);
+
+    /** Returns the standard height used for items in the panel. */
+    int getItemHeight() const noexcept      { return itemHeight; }
+
+    /** Returns the ListBox that's being used to show the midi inputs, or nullptr if there isn't one. */
+    ListBox* getMidiInputSelectorListBox() const noexcept;
+
+    //==============================================================================
+    /** @internal */
+    void resized() override;
+    /** @internal */
+    void timerCallback() override;
+
+private:
+    //==============================================================================
+    std::unique_ptr<ComboBox> deviceTypeDropDown;
+    std::unique_ptr<Label> deviceTypeDropDownLabel;
+    std::unique_ptr<Component> audioDeviceSettingsComp;
+    String audioDeviceSettingsCompType;
+    int itemHeight;
+    const int minOutputChannels, maxOutputChannels, minInputChannels, maxInputChannels;
+    const bool showChannelsAsStereoPairs;
+    const bool hideAdvancedOptionsWithButton;
+
+    class MidiInputSelectorComponentListBox;
+    friend struct ContainerDeletePolicy<MidiInputSelectorComponentListBox>;
+    std::unique_ptr<MidiInputSelectorComponentListBox> midiInputsList;
+    std::unique_ptr<ComboBox> midiOutputSelector;
+    std::unique_ptr<Label> midiInputsLabel, midiOutputLabel;
+    std::unique_ptr<TextButton> bluetoothButton;
+
+    void handleBluetoothButton();
+    void updateDeviceType();
+    void updateMidiOutput();
+    void changeListenerCallback (ChangeBroadcaster*) override;
+    void updateAllControls();
+
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioDeviceSelectorComponent)
+};
+
+} // namespace juce