Setting Environment Variables Inside Chroot

[Mushoz]

I am trying to build mesa-git: https://aur.archlinux.org/packages/mesa-git

However, this makepkg file requires you to set a MESA_WHICH_LLVM environment variable to select which LLVM version to build against. Option 1 is recommend, but option 4 is the default. If I use MESA_WHICH_LLVM=1 ccm s to build the package, it looks like it's still using the LLVM from the extra repo and ignoring the environment variable. How should I properly set this variable?

[graysky2]

Test:

1. Modify the PKGBUILD to simply echo $MESA_WHICH_LLVM (right under the case statement before pkgver's function
2. Run MESA_WHICH_LLVM=1 makepkg -sd which for me returns a value of 1
3. Run the same calling MESA_WHICH_LLVM=1 makechrootpkg -r /scratch/.buildroot -- -A --nocheck which for me returns a value of 4 which is the PKGBUILD default

Conclusion: I do not think that makechrootpkg supports prefixed flags.

One work around is to hardcode your value into the PKGBUILD but that is not very elegant. You might consider asking in the Arch forums. I would keep your post simple by not mentioning ccm since this is clearly a makechrootpkg thing.

[LW-archlinux]

Passing environment variables to an arbitrary porgram is possible if its started through sudo .

https://wiki.archlinux.org/title/Sudo#Environment_variables

@graysky2 : maybe you could test to verify that method works with ccm -and add something to the docs ?

Thanks for a great tool.

[graysky2]

Please try it and report back.

[LW-archlinux]

I tried but was unable to get things working .
makechrootpkg does seem use to that method , but is hardcoded to only do it for specific env vars.

[graysky2]

I am closing thinking this is not possible. Not ccm's fault, see above.