Use override

src/musicbrainz/acoustidclient.h

@@ -43,7 +43,7 @@ class AcoustidClient : public QObject {
 
  public:
   explicit AcoustidClient(QObject *parent = nullptr);
-  ~AcoustidClient();
+  ~AcoustidClient() override;
 
   // Network requests will be aborted after this interval.
   void SetTimeout(const int msec);

src/musicbrainz/chromaprinter.cpp

@@ -55,8 +55,6 @@ Chromaprinter::Chromaprinter(const QString &filename)
     : filename_(filename),
       convert_element_(nullptr) {}
 
-Chromaprinter::~Chromaprinter() {}
-
 GstElement *Chromaprinter::CreateElement(const QString &factory_name, GstElement *bin) {
 
   GstElement *ret = gst_element_factory_make( factory_name.toLatin1().constData(), factory_name.toLatin1().constData());

src/musicbrainz/chromaprinter.h

@@ -39,7 +39,6 @@ class Chromaprinter {
 
  public:
   explicit Chromaprinter(const QString &filename);
-  ~Chromaprinter();
 
   // Creates a fingerprint from the song.
   // This method is blocking, so you want to call it in another thread.

src/musicbrainz/musicbrainzclient.h

@@ -51,7 +51,7 @@ class MusicBrainzClient : public QObject {
   // The second argument allows for specifying a custom network access manager.
   // It is used in tests. The ownership of network is not transferred.
   explicit MusicBrainzClient(QObject *parent = nullptr, QNetworkAccessManager *network = nullptr);
-  ~MusicBrainzClient();
+  ~MusicBrainzClient() override;
 
   struct Result {
     Result() : duration_msec_(0), track_(0), year_(-1) {}