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_core/native/java/AndroidSharingContentProvider.java

@@ -0,0 +1,138 @@
+package com.juce;
+
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.content.res.AssetFileDescriptor;
+import android.content.res.Resources;
+import android.database.Cursor;
+import android.database.MatrixCursor;
+import android.net.Uri;
+import android.os.FileObserver;
+import android.os.ParcelFileDescriptor;
+import java.lang.String;
+
+public final class SharingContentProvider extends ContentProvider
+{
+    private Object lock = new Object();
+
+    private native void contentSharerFileObserverEvent (long host, int event, String path);
+
+    private native Cursor contentSharerQuery (Uri uri, String[] projection, String selection,
+                                              String[] selectionArgs, String sortOrder);
+
+    private native void contentSharerCursorClosed (long host);
+
+    private native AssetFileDescriptor contentSharerOpenFile (Uri uri, String mode);
+    private native String[] contentSharerGetStreamTypes (Uri uri, String mimeTypeFilter);
+
+    public final class ProviderFileObserver extends FileObserver
+    {
+        public ProviderFileObserver (long hostToUse, String path, int mask)
+        {
+            super (path, mask);
+
+            host = hostToUse;
+        }
+
+        public void onEvent (int event, String path)
+        {
+            contentSharerFileObserverEvent (host, event, path);
+        }
+
+        private long host;
+    }
+
+    public final class ProviderCursor extends MatrixCursor
+    {
+        ProviderCursor (long hostToUse, String[] columnNames)
+        {
+            super (columnNames);
+
+            host = hostToUse;
+        }
+
+        @Override
+        public void close()
+        {
+            super.close();
+
+            contentSharerCursorClosed (host);
+        }
+
+        private long host;
+    }
+
+    @Override
+    public boolean onCreate()
+    {
+        return true;
+    }
+
+    @Override
+    public Cursor query (Uri url, String[] projection, String selection,
+                         String[] selectionArgs, String sortOrder)
+    {
+        synchronized (lock)
+        {
+            return contentSharerQuery (url, projection, selection, selectionArgs, sortOrder);
+        }
+    }
+
+    @Override
+    public Uri insert (Uri uri, ContentValues values)
+    {
+        return null;
+    }
+
+    @Override
+    public int update (Uri uri, ContentValues values, String selection,
+                       String[] selectionArgs)
+    {
+        return 0;
+    }
+
+    @Override
+    public int delete (Uri uri, String selection, String[] selectionArgs)
+    {
+        return 0;
+    }
+
+    @Override
+    public String getType (Uri uri)
+    {
+        return null;
+    }
+
+    @Override
+    public AssetFileDescriptor openAssetFile (Uri uri, String mode)
+    {
+        synchronized (lock)
+        {
+            return contentSharerOpenFile (uri, mode);
+        }
+    }
+
+    @Override
+    public ParcelFileDescriptor openFile (Uri uri, String mode)
+    {
+        synchronized (lock)
+        {
+            AssetFileDescriptor result = contentSharerOpenFile (uri, mode);
+
+            if (result != null)
+                return result.getParcelFileDescriptor();
+
+            return null;
+        }
+    }
+$$ContentProviderApi11
+    @Override
+    public String[] getStreamTypes (Uri uri, String mimeTypeFilter)
+    {
+        synchronized (lock)
+        {
+            return contentSharerGetStreamTypes (uri, mimeTypeFilter);
+        }
+    }
+ContentProviderApi11$$
+}