[Interest] QtCreator configure with custom compiler

[Konstantin Shegunov]

Hello,
A week or so ago I tried configuring Creator to use a custom compiler
(actually a g++ wrapper compiler). So I tried configuring both a
GCC-type compiler and a Custom-type compiler (plus setting the arch
manually) in the Creator's UI. After that I configured a kit for each
of said compilers and tried building my project with it. Surprisingly,
Creator invokes g++ instead.

Did I miss something? Is this a regression of some kind?

Any advice is highly appreciated.
Kind regards.