Bug: https://bugs.gentoo.org/664628

--- a/svapp/audio/AudioCallbackRecordTarget.cpp
+++ b/svapp/audio/AudioCallbackRecordTarget.cpp
@@ -19,6 +19,7 @@
 
 #include "data/model/WritableWaveFileModel.h"
 
+#include <QDateTime>
 #include <QDir>
 #include <QTimer>