Comment # 3 on bug 1141204 from Martin Li��ka

(In reply to Michael Vetter from comment #2)
> Martin, so this has to do with 1133084 about LTO?

Yes, it's not on by default in Factory.

> Shouldn't it build at all in such case? Or can it also happen that it builds
> but doesn't work properly?

It builds properly but causes an issue during run-time.

> 
> What's the best thing to do now? Just add
> > %define _lto_cflags %{nil}
> to the spec file?

That can be a solution/workaround once we know which lxqt package is affected.
But I can't reproduce that locally. Can you please try it?