[Solved] Mesa - LLVM/Clang Multiple Versions

[Weezer]

Greetings!

Within the last day or so, it appears Mesa is now pulling in Clang when the LLVM use flag is enabled (in Mesa). I hadn't needed LLVM until recently (still trying to figure that out) and now Clang is being pulled in. I have read that THAT is due to changes in Mesa (intel_clc).

[grknight]

See also media-libs/mesa-24.1.0 pulls llvm/clang for why this happens to those with Intel video cards.

Note that it is not just mesa but also dev-util/intel_clc that is maxed at LLVM:17 at this time.

[Weezer]

[Hu]

Unstable tends to see more updates than stable, so if building large packages is a burden, you may want to stick to stable for its rarer updates.

You could certainly try using a per-package keyword override to discourage use of the newer clang/llvm. However, this may not be well tested, and could be broken now or break unexpectedly later. I cannot comment on whether this will build for you today, or how likely it is to remain working.

If it were me, I would pick the keyword change over tinkering with the ebuilds. It is easier to write and requires no ongoing maintenance (assuming it works at all).

To implement this (untested):

[Weezer]

[Weezer]

I was able to successfully remove sys-devel/clang:18 and sys-devel/llvm:18 and all associated packages via package.accept_keywords with: