Arch Linux User Repository

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.

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 the maintainer 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 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.

• 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

• choosing which llvm variant to build against

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 ?

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.

• 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 , update mesa-git and restart X .

run glxinfo -B to verify basic OpenGL functionality

build lib32-mesa-git

run glxinfo32 -B to verify basic OpenGL functionality for multilib programs

makepkg has no problems using it, try again.

==> Making package: mesa-git 19.0.0_devel.107100.212c0c630a8-1 (vr 01 feb 2019 13:21:18 CET)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Installing missing dependencies...
[sudo] password for panoramix: 
resolving dependencies...
looking for conflicting packages...

Package (6)              New Version         Net Change

extra/python-beaker      1.10.0-2              0.47 MiB
extra/python-markupsafe  1.1.0-1               0.08 MiB
llvm-svn/clang-svn       8.0.0svn_r351073-1  369.06 MiB
llvm-svn/llvm-svn        8.0.0svn_r351073-1  238.03 MiB
extra/ocl-icd            2.2.12-3              0.27 MiB
extra/python-mako        1.0.7-3               0.70 MiB

Total Installed Size:  608.61 MiB

:: Proceed with installation? [Y/n] 
(6/6) checking keys in keyring                                                             [####################################################] 100%
(6/6) checking package integrity                                                           [####################################################] 100%
(6/6) loading package files                                                                [####################################################] 100%
(6/6) checking for file conflicts                                                          [####################################################] 100%
(6/6) checking available disk space                                                        [####################################################] 100%
:: Processing package changes...
(1/6) installing python-markupsafe                                                         [####################################################] 100%
(2/6) installing python-beaker                                                             [####################################################] 100%
(3/6) installing python-mako                                                               [####################################################] 100%
(4/6) installing llvm-svn                                                                  [####################################################] 100%
(5/6) installing clang-svn                                                                 [####################################################] 100%
Optional dependencies for clang-svn
    clang-analyzer-svn: source code analysis for Clang, supporting C, C++, and Objective-C
    clang-compiler-rt-svn: sanitizer runtimes, builtins, profile library and BlocksRuntime
    clang-tools-extra-svn: standalone tools: syntax checking, formatting, refactoring, etc.
    python2: git-clang-format and clang-format-diff.py support [installed]
(6/6) installing ocl-icd                                                                   [####################################################] 100%
Optional dependencies for ocl-icd
    opencl-driver: packaged opencl driver [installed]
:: Running post-transaction hooks...
(1/1) Arming ConditionNeedsUpdate...
==> Retrieving sources...
  -> Updating mesa git repo...
Fetching origin
From git://anongit.freedesktop.org/mesa/mesa
 - [deleted]                 (none)     -> meson-fixes
 - [deleted]                 (none)     -> review/arb_gl_spirv-xfb-improvement
remote: Counting objects: 1220, done.
remote: Compressing objects: 100% (961/961), done.
remote: Total 1220 (delta 1016), reused 310 (delta 248)
Receiving objects: 100% (1220/1220), 196.27 KiB | 468.00 KiB/s, done.
Resolving deltas: 100% (1016/1016), completed with 248 local objects.
   8320a07221a..7475d7727f1  18.3             -> 18.3
 * [new branch]              19.0             -> 19.0
 * [new branch]              fast-color-clear -> fast-color-clear
   212c0c630a8..9b9ccee4d64  master           -> master
   f5e752c4152..871aea89fd3  staging/18.3     -> staging/18.3
 * [new branch]              staging/19.0     -> staging/19.0
 * [new tag]                 19.0-branchpoint -> 19.0-branchpoint
 * [new tag]                 mesa-18.3.3      -> mesa-18.3.3
 * [new tag]                 mesa-19.0-rc1    -> mesa-19.0-rc1
 * [new tag]                 mesa-19.0.0-rc1  -> mesa-19.0.0-rc1

Did the repo url changed?

╰─λ git clone git://anongit.freedesktop.org/mesa/mesa                              0 < 13:50:27
Cloning into 'mesa'...
fatal: unable to connect to anongit.freedesktop.org:
anongit.freedesktop.org[0: 131.252.210.161]: errno=Connection refused
anongit.freedesktop.org[1: 2610:10:20:722:a800:ff:fe24:61cf]: errno=Network is unreachable

You still need to fix PKGBUILD if the package should get installed properly.

Line --with-vulkan-icddir="$srcdir/fakeinstall/usr/share/vulkan/icd.d" must be removed, because that directory does not exist.

6 days  removed codegenoptions patch    LW-archlinux
9 days  updated srcinfo LW-archlinux
9 days  patch added to solve opencl compilation problem LW-archlinux

The patch was added 9 days ago, then removed 3 days later after upstream had implemented an improved version of it AND i had confirmed it was no longer needed by building mesa-git without the patch.

I build mesa-git 5 minutes ago without any problem.

Enverex, if you have build failures now they have other causes.

@Enverex it was fixed already https://bugs.freedesktop.org/show_bug.cgi?id=109039

Lone_Wolf: Any chance of including that patch until they actually fix this upstream? It's been broken for some time now.

Or use this patch: https://gist.github.com/609c53ea5345378244ad9857bab186af

Build failure : caused by https://llvm.org/viewvc/llvm-project?view=revision&revision=348827

https://bugs.freedesktop.org/show_bug.cgi?id=109039

workaround

edit PKGBUILD and remove opencl support by using

-D gallium-opencl=disabled \

instead of

-D gallium-opencl=icd \

confirmed, investigating

Hi everyone,

Is anyone else getting this:

In file included from ../mesa/src/gallium/state_trackers/clover/llvm/codegen/native.cpp:31:
../mesa/src/gallium/state_trackers/clover/llvm/compat.hpp:61:10: fatal error: clang/Frontend/CodeGenOptions.h: No such file or directory
#include <clang/Frontend/CodeGenOptions.h>
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated."

When attempting to compile mesa-git with kerberizer's latest llvm-svn packages?