FilesystemDevice: Ignore compile warning C4250

src/device/filesystemdevice.h

@@ -22,6 +22,11 @@
 #ifndef FILESYSTEMDEVICE_H
 #define FILESYSTEMDEVICE_H
 
+#ifdef _MSC_VER // FIXME
+#pragma warning(push)
+#pragma warning(disable : 4250)
+#endif
+
 #include "config.h"
 
 #include <QObject>
@@ -78,4 +83,8 @@ class FilesystemDevice : public ConnectedDevice, public virtual FilesystemMusicS
   QList<QObject*> wait_for_exit_;
 };
 
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
 #endif  // FILESYSTEMDEVICE_H