Make chromaprint optional

src/device/cddasongloader.cpp

@@ -164,6 +164,7 @@ void CddaSongLoader::LoadSongs() {
   }
   emit SongsDurationLoaded(songs);
 
+#ifdef HAVE_CHROMAPRINT
   // Handle TAG message: generate MusicBrainz DiscId
   if (msg_tag) {
     GstTagList *tags = nullptr;
@@ -181,6 +182,7 @@ void CddaSongLoader::LoadSongs() {
       gst_tag_list_free(tags);
     }
   }
+#endif
 
   gst_element_set_state(pipeline, GST_STATE_NULL);
   // This will also cause cdda_ to be unref'd.
@@ -188,6 +190,7 @@ void CddaSongLoader::LoadSongs() {
 
 }
 
+#ifdef HAVE_CHROMAPRINT
 void CddaSongLoader::AudioCDTagsLoaded(const QString &artist, const QString &album, const MusicBrainzClient::ResultList &results) {
 
   MusicBrainzClient *musicbrainz_client = qobject_cast<MusicBrainzClient*>(sender());
@@ -213,6 +216,7 @@ void CddaSongLoader::AudioCDTagsLoaded(const QString &artist, const QString &alb
   emit SongsMetadataLoaded(songs);
 
 }
+#endif
 
 bool CddaSongLoader::HasChanged() {
 

src/device/cddasongloader.h

@@ -37,7 +37,9 @@
 #include <gst/audio/gstaudiocdsrc.h>
 
 #include "core/song.h"
-#include "musicbrainz/musicbrainzclient.h"
+#ifdef HAVE_CHROMAPRINT
+#  include "musicbrainz/musicbrainzclient.h"
+#endif
 
 // This class provides a (hopefully) nice, high level interface to get CD information and load tracks
 class CddaSongLoader : public QObject {
@@ -60,7 +62,9 @@ class CddaSongLoader : public QObject {
   void SongsMetadataLoaded(const SongList &songs);
 
  private slots:
+#ifdef HAVE_CHROMAPRINT
   void AudioCDTagsLoaded(const QString &artist, const QString &album, const MusicBrainzClient::ResultList &results);
+#endif
 
  private:
   QUrl GetUrlFromTrack(int track_number) const;