[rhodysurf]

Qt 5 and QML. GTK on Linux...

[seanclayton]

>Qt 5 and QML. GTK on Linux...

List one that is MIT licensed...

[cpburns2009]

Qt 5 is LGPL 2.1+ (not a problem unless you need to statically link).

GTK+ is LGPL 2.1 (not a problem unless you need to statically link).

[mwcampbell]

And wxWidgets is LGPL with an exception for static linking.