Bug#1119091: qt6-tools: build with default clang/llvm

[Patrick Franz <deltaone@debian.org>]

Hi Jeremy,

Am Sonntag, 26. Oktober 2025, 21:09:18 Mitteleuropäische Normalzeit 
schrieb Jeremy Bícha:
> Source: qt6-tools
> Version: 6.9.2-2
> Tags: patch
> X-Debbugs-CC: eltaone@debian.org
> 
> Please consider building with the default clang/llvm rather than
> manually specifying a version. In my follow-up email, I'm attaching a
> patch to do this.
> 
> It looks like this was already being done until
> https://salsa.debian.org/qt-kde-team/qt6/qt6-tools/-/commit/f3938d78

I have no intention of using the default llvm and the reason why we 
hardcode the llvm version is because we have to patch it all the time 
otherwise, exactly what you are pointing out.


> Please also update qt6-tools to 6.9.3 (or 6.10) since it includes
> fixes needed for qt6-tools to build with llvm 21. Ubuntu has already
> switched its default llvm to 21 and Debian will follow. (llvm 20 is
> being skipped in Debian.)

You cannot just upgrade qt6-tools to 6.9.3 - you have to update _all_
Qt 6 packages...and that is a lot of work for a patch update. Not to 
mention that we have to do a big transition for Qt patch updates.
Packaging 6.10 is a couple of months away.


-- 
Med vänliga hälsningar

Patrick Franz