@zangoku
You can work around this issue by installing official extra/mesa which consequently removes mesa-git, then update using pacman, and reinstall mesa-git after.
sudo pacman -S mesa
sudo pacman -Syu
makepkg -sri
You could also use the clean chroot method. Please see the pinned comment above for the details. Here's the brief:
mkdir ~/chroot
CHROOT=$HOME/chroot
mkarchroot $CHROOT/root base-devel
arch-nspawn $CHROOT/root pacman -Syu
cd YOUR_MESA_GIT_DIR
makechrootpkg -c -r $CHROOT
Find the newly created mesa-git package by
ls -t *.zst | head -n1
Install the created package and update the system
sudo pacman -U mesa-git-xxx.pkg.tar.zst
sudo pacman -Syu
You can remove the created chroot directory to save the space if you want
sudo rm -rf $CHROOT
Pinned Comments
Lone_Wolf commented on 2024-09-10 19:58 (UTC)
removed obsolete options, build now works again.
building opencl clover is disabled for now, see https://gitlab.freedesktop.org/mesa/mesa/-/issues/11863
Those that need opencl should use rusticl instead. Note that rusticl at runtime is disabled by default, see https://docs.mesa3d.org/envvars.html#rusticl-environment-variables for info about enabling it.
Lone_Wolf commented on 2020-04-23 12:26 (UTC) (edited on 2023-03-30 07:04 (UTC) by Lone_Wolf)
Mesa and llvm are closely tied together. Everytime the llvm mesa is built against changes/updates , mesa needs to be rebuilt.
I expect anyone building mesa-git against one of the llvm trunk variants to be able to do that themselves, but atleast some of the people that built against repo llvm don't understand how to deal with such a rebuild.
The rest of this post is meant for those people.
Option A - best one
see https://wiki.archlinux.org/index.php/DeveloperWiki:Building_in_a_clean_chroot for the official way or https://aur.archlinux.org/packages/clean-chroot-manager for an alternative method.
Option B - 2nd best
Lone_Wolf commented on 2019-07-09 13:43 (UTC) (edited on 2023-04-18 10:41 (UTC) by Lone_Wolf)
WARNING : aur helpers don't support this method at all. They check .SRCINFO and that doesn't include this variable so it will use the default which is hardcoded to build against repo llvm.
Why would I want to use llvm development versions ?
Lone_Wolf commented on 2018-01-30 14:06 (UTC) (edited on 2023-02-12 11:56 (UTC) by Lone_Wolf)
run pacman Syu update non-repo packages for llvm if you use them
build mesa-git, log out , update mesa-git and restart X .
run
glxinfo -B
to verify basic OpenGL functionalitybuild lib32-mesa-git
run
glxinfo32 -B
to verify basic OpenGL functionality for multilib programs