Package Details: mesa-git 21.2.0_devel.142376.c70f45c7596-1

Git Clone URL: (read-only, click to copy)
Package Base: mesa-git
Description: an open-source implementation of the OpenGL specification, git version
Upstream URL:
Keywords: mesa X11
Licenses: custom
Conflicts: libva-mesa-driver, mesa, mesa-vdpau, opencl-mesa, vulkan-intel, vulkan-mesa-layer, vulkan-radeon, vulkan-swrast
Provides: libva-mesa-driver, mesa, mesa-vdpau, opencl-driver, opencl-mesa, opengl-driver, vulkan-driver, vulkan-intel, vulkan-mesa-layer, vulkan-radeon, vulkan-swrast
Submitter: Krejzi
Maintainer: Lone_Wolf (rjahanbakhshi)
Last Packager: rjahanbakhshi
Votes: 166
Popularity: 1.97
First Submitted: 2014-06-19 21:33
Last Updated: 2021-07-10 09:03

Dependencies (34)

Required by (1000)

Sources (2)

Pinned Comments

Lone_Wolf commented on 2020-04-23 12:26

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.

  • Verify if latest PKGBUILD requirements match llvm repo versions.
  • If they don't , post to alert me of this.
  • DELAY the update of llvm/clang suite and their lib32- counterparts
  • Once the PKGBUILD does match, download it.

Option A - best one

  • run pacman -Syu to ensure your system is in sync with your mirrror server
  • build mesa-git in a clean chroot

see for the official way or for an alternative method.

  • install the newly built mesa-git
  • run pacman -Syu
  • ready

Option B - 2nd best

  • revert to repo mesa
  • pacman -Syu
  • build mesa-git
  • switch from mesa to mesa-git
  • ready

Lone_Wolf commented on 2019-07-09 13:43

  • choosing which llvm variant to build against

WARNING : aur helpers don't support this method at all. They check .SRCINFO and that is set to build against repo llvm when it is uploaded.

Why would I want to use llvm development versions ?

For full functionality and latest features mesa trunk master needs to be build against llvm trunk master.
If you build against stable llvm things MAY work, but you're likely to lack some features and face stability issues.

Mesa-git uses a custom environment variable MESA_WHICH_LLVM for flexibility.
It has 4 values.
1 : aur llvm-minimal-git
2 : aur llvm-git
3: llvm-git from LordHeavy' unofficial repo
4: llvm from extra repo

I use value 1 95% of the time and set this in ~/.bash_rc .
If MESA_WHICH_LLVM is unset or empty, the default value of 4 (extra llvm) is used.

Lone_Wolf commented on 2018-01-30 14:06

  • issues
Simple issues can be dealth with through aur comments, but sometimes discussion is needed.
Use for that.
  • main difference with stable repo package
[extra]mesa is a split package, but aur mesa-git isn't.
Basically with aur mesa-git you get everything in one package, while [extra]/mesa allows you to leave out some parts if you don't want/need them.
Having a single package reduces maintenance and makes switching from stable to mesa-git rather easy, though reverting back to stable can be tricky.
  • meson settings
Those who compare PKGBUILDs will notice I don't use arch-meson, but meson setup.
I disagree with some of the settings made by arch-meson (especially the buildtype and enabling LTO by default) and feel using meson setup is cleaner.
  • how to update

run pacman Syu update non-repo packages for llvm if you use them

build mesa-git, log out , restart X .

run glxinfo to verify basic OpenGL functionality

build lib32-mesa-git

run glxinfo32 to verify basic OpenGL functionality for multilib programs

Latest Comments

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rjahanbakhshi commented on 2021-02-24 08:22

0001-clover-llvm13-use-FixedVectorType.patch is missing a semicolon in the #else clause.

Thanks for reporting the issue. It's been fixed now.

shoecart commented on 2021-02-23 23:43

0001-clover-llvm13-use-FixedVectorType.patch is missing a semicolon in the #else clause.

Lone_Wolf commented on 2021-02-23 13:49

Thank you for offering, TKG .

I'll respond soon through email

yurikoles commented on 2021-02-18 00:32


Nice try :)

TkG commented on 2021-02-17 14:06

I'm available to maintain the package @Lone_Wolf

Lone_Wolf commented on 2021-01-30 22:27

llvm trunk builds give another build failure wrt opencl , see

Lone_Wolf commented on 2021-01-20 23:25

Confirmed, needed for all llvm trunk builds.

A temporary workaround is to disable building gallium-opencl .

rjahanbakhshi, please look into adding this commit.

It can be downloaded as patchfile from

Thaodan commented on 2021-01-20 21:59

Building against llvm-git requires:

Lone_Wolf commented on 2021-01-19 12:21

Ignoring updates leads to partial updates which cause problems. It should only be done temporarily for a short period.

zilot commented on 2021-01-17 14:59

Some people had the same issue I had when trying to update their system

error: failed to prepare transaction (could not satisfy dependencies)
:: installing lib32-llvm-libs (11.0.1-1) breaks dependency 'lib32-llvm-libs=11.0.0' required by lib32-mesa-git
:: installing llvm-libs (11.0.1-1) breaks dependency 'llvm-libs=11.0.0' required by mesa-git

To update your system anyway, you need to ignore those two package with the --ignore option :

sudo pacman -Syu --ignore=lib32-llvm-libs,llvm-libs

This ignore them temporary. You need to modify your .conf file to make it permanent.