magnet:?xt=urn:btih:c23965321fb05cc9641a3e1c62d970c9b2b5f63c&xt=urn:md5:1d76f961af568429b29b7ef6a1577250&xl=215784539&dn=qt-mac-carbon-opensource-4.7.1.dmg&as=https://download.qt.io/new_archive/qt/4.7/qt-mac-carbon-opensource-4.7.1.dmg&tr=http://bt.qt-project.org:6969/announce