According to Changelog: Version 0.6.6 ... * fixed build without qt3support headers (thanks to Dmitry Smolin) To be more specific, ChangeLog.svn: removed qt3support header usage from ui file (thanks to Dmitry Smolin) http://code.google.com/p/qmmp/source/detail?r=3078 So there is no qt3support dependency Reproducible: Always
Fixed thanks for the report.