Requires Qt6, not 5

[palfrey]

Relevant components

• Standalone tray application (based on Qt Widgets)
• Plasmoid/applet for Plasma desktop
• Dolphin integration
• Command line tool (syncthingctl)
• Integrated Syncthing instance (libsyncthing)
• Android app or mobile UI in general
• Backend libraries

Environment and versions

• syncthingtray: 2.0.2
• Qt version: 5.15.1

Bug description
The README claims 5 support, but you get

/src/syncthingconnector/syncthingconfig.cpp: In function 'QJsonValue Data::xmlValueToJsonValue(QStringView)':
/src/syncthingconnector/syncthingconfig.cpp:96:25: error: 'class QStringView' has no member named 'toDouble'
96 |     auto number = value.toDouble(&isNumber);

and https://doc.qt.io/qt-6/qstringview.html#toDouble says that's a 6.x feature

Steps to reproduce

1. Build with qt5

[Martchus]

This should probably be fixed then as this function has only been added in 5.15.2, see https://doc.qt.io/archives/qt-5.15/qstringview.html#toDouble.

[Martchus]

I fixed this but haven't tested it yet. Not sure what the lowest Qt 5 version is now but it should now compile with your 5.15.1.

[palfrey]

Builds fine now, thanks