I was trying to update to KDE Frameworks 5.52.0
when I ran into an obstacle with Kdewebkit which I hadn't seen previously :
when configuring, Emerge got stuck due to a Cmake mismatch.
I found the solution by giving Google a long string from the build log
& thereby getting a query to the Gentoo Italian Forum.
I've never learned Italian, but perhaps all that Latin long ago helped :
I was able to make sense of the final entries,
which said to remerge Qtwidgets, then Qtwebkit.
Just why that enabled Cmake to work remains a puzzle,
but after following that advice, Kdewebkit merged successfully.
The Forum entry is at https://forums.gentoo.org/viewtopic-p-8270652.html?sid=7f3d883e3448cdfb414a19a585fd1279
SUPPORT ___________//___, Philip Webb
ELECTRIC /]     | Cities Centre, University of Toronto
TRANSIT `-O----------O---' purslowatchassdotutorontodotca