01:58 rakuco 

Backport patch to fix the build of KWin 5.

The error looks like this:

/wrkdirs/usr/ports/x11-wm/kde5-kwin/work/kwin-5.2.0/kcmkwin/kwintabbox/layoutpreview.cpp:135:66:
error: redefinition of 's' with a different type: 'const QString' vs 'const
auto'
    if (const auto s =
KMimeTypeTrader::self()->preferredService(QStringLiteral("inode/directory"))) {
                                                                     ^
/usr/local/include/qt5/QtCore/qstring.h:170:23: note: expanded from macro
'QStringLiteral'
        const QString s(holder); \
                      ^