Arch Linux User Repository

During building you may encounter lots of coredumps, slowing build down or even dramatically reducing the responsiveness of your system.

See https://wiki.archlinux.org/title/Core_dump for solutions/workarounds .

Archlinux currently has 3 llvm git implementations

1. this package

   • see other pinned comments for details

2. llvm-git

   • It aims to provide a full llvm/clang compiler environment for development purposes.
   • Supports cross-compiling , bindings for external stuff (python, ocaml etc) , and some things not in extra-llvm.
   • intended to be used with archlinux core,extra & community repos
   • CONFLICTS with extra llvm/clang packages
   • binary versions in chaotic aur unofficial repository

3. packages created & maintained by Lordheavy, an arch developer

   • intended to be used with archlinux testing repos
   • sometimes has problems on systems where testing repos are disabled
   • uses same package structure as llvm/clang in official repos
   • source
   • binary versions in LordHeavys unoffical repo

Why does this package exist ?

Llvm & aur llvm-git are intended to provide a full development environment of llvm/clang suite that can replace eachother completely (aur llvm-git adds some xtra functionality)

llvm-minimal-git is a stripped-down llvm trunk build with these goals :

• llvm-libs-minimal-git must coexist with stable llvm-libs
• provide what's needed for mesa trunk (it's a hard dependency for mesa-minimal-git and a possible dependeny for mesa-git)
• provide basic llvm/clang compiler functionality on x86-64 architecture

Some of the things that are stripped out :

• cross-compiling support
• bindings for ocaml
• bindings for go
• lld , lldb and polly
• documentation
• examples
• benchmarks

Maintainers (and users) should only depend on llvm-miminal-git after verifying it satisfies what they need.

When building this you are likely to see test failures in terminal output / logs.

The command used for the tests has been changed to continue regardless of failures. Incase you don't want to run the tests you can use --nocheck option of makepkg.

built just fine on 14.10, built just fine today - 20.0.0_r515197.37ad65ffb6b8-1

Sounds like you are using customised makepkg.conf/pacman.conf as lld is the llvm linker and clean chroot builds are meant to use gcc & ld .

Also LLVM_ENABLED_SHARED_LIBS=ON is only meant for use by llvm developers in special cases.

Try re-creating the chroot from scratch with $ mkarchroot $CHROOT/root base-devel and only edit the mirrorlist.

thank you for your response. I just tested this build using regular makepkg -si and it works so long as I set:

-D LLVM_PARALLEL_LINK_JOBS=1
-D LLVM_ENABLED_SHARED_LIBS=ON
-D LLVM_ENABLE_LLD=ON 

in the PKGBUILD, but for some reason when trying with makechrootpkg -c -r $CHROOT it gives

CMake Error at cmake/modules/HandleLLVMOptions.cmake:412 (message):
  Host compiler does not support '-fuse-ld=lld'.  Please make sure that 'lld'
  is installed and that your host compiler can compile a simple program when
  given the option '-fuse-ld=lld'.
Call Stack (most recent call first):
  CMakeLists.txt:1019 (include)

I'm very new to clean chroot building and recently moved away from using AUR helpers, so I'm struggling with researching how to fix this. I set up the chroot according to the wiki, but maybe there was something non-trivial I'm meant to do for the compiler to work correctly.

No build issues with rev 20.0.0_r514923.bec839d8eed9 .

Could be an upstream issue, try again. If it still fails look in the aur/llvm-minimal-git folder for files ending with .log .

building in a clean chroot fails, but error is not descriptive. Steps to reproduce

[base] [mdupont@arch-g14 ~] :) cd aur 
[base] [mdupont@arch-g14 aur] :) cd llvm-minimal-git
[base] [mdupont@arch-g14 llvm-minimal-git] (master) :) makechrootpkg -c -r $CHROOT 
...
[ 43%] Built target obj.clangBasic
make: *** [Makefile:156: all] Error 2
make: Leaving directory '/build/llvm-minimal-git/src/_build'
==> ERROR: A failure occurred in build().
    Aborting...
==> ERROR: Build failed, check /home/mdupont/chroot/mdupont/build

this error is not descriptive enough for me to diagnose the problem on my own. Any hints?

@wustdsh I'm so caught up in my things that I didn't bother to look and just reported.

Original line: rm "$pkgdir"/usr/lib/clang/19/lib/{i386-pc-linux-gnu,x86_64-pc-linux-gnu}/*.a

Only removed i386-pc-linux-gnu

Left:

rm "$pkgdir"/usr/lib/clang/19/lib/x86_64-pc-linux-gnu/*.a

Builds just fine. @Lone_Wolf

Failing:

warning: no files found matching 'TODO'
warning: no previously-included files matching '*pyc' found anywhere in distribution
warning: no previously-included files matching '*~' found anywhere in distribution
no previously-included directories found matching 'tests/Output'
no previously-included directories found matching 'tests/*/Output'
no previously-included directories found matching 'tests/*/*/Output'
no previously-included directories found matching 'tests/*/*/*/Output'
adding license file 'LICENSE.TXT'
writing manifest file 'lit.egg-info/SOURCES.txt'
Copying lit.egg-info to /build/llvm-minimal-git/pkg/llvm-minimal-git/usr/lib/python3.11/site-packages/lit-19.0.0.dev0-py3.11.egg-info
running install_scripts
Installing lit script to /build/llvm-minimal-git/pkg/llvm-minimal-git/usr/bin
~/llvm-minimal-git/src
rm: cannot remove '/build/llvm-minimal-git/pkg/llvm-minimal-git/usr/lib/clang/19/lib/i386-pc-linux-gnu/*.a': No such file or directory
==> ERROR: A failure occurred in package_llvm-minimal-git().
    Aborting...
==> ERROR: Build failed, check /home/georgi/Documents/chroot/georgi/build

ps,

curl is currently broken (curl-8.7.1-3) and git+https will fail downloading the source. Downgrading curl (8.6.0-4) works.

Did you include base-devel when creating the chroot ?

You're not supposed to add makedepends through arch-nspawn but should let makechrootpkg determine makedepends & depends at build time. However if you do want to add makedeps that way why did you leave out libffi, ncurses, libxml2 and libxcrypt ?

Which revision are you trying to build ?

I get a CMake error when trying to build this in a clean chroot:

CMake Error: The inter-target dependency graph contains the following strongly connected component (cycle):
  [... a ton of targets ...]
At least one of these targets is not a STATIC_LIBRARY.  Cyclic dependencies are allowed only among static libraries.
CMake Generate step failed.  Build files cannot be regenerated correctly.

Steps to reproduce:

• Set up clean chroot as described in the wiki
• install dependencies: arch-nspawn $CHROOT/root pacman -S git cmake libedit python python-setuptools
• git clone https://aur.archlinux.org/llvm-minimal-git.git
• cd llvm-minimal-git and then makechrootpkg -c -r $CHROOT