Hi there, It seems that the http://get.qtsoftware.com/qt/source/qt-x11-opensource-src-4.5.1.tar.bz2 link found in http://slackbuilds.org/repository/12.2/libraries/qt4/ is no more valid. I found sources under http://ftp3.ie.freebsd.org/pub/trolltech/pub/qt/source/ -- Best regards, Andrzej Telszewski