Two llvm versiones installed, how can I see dependencies

saski4711 · Apprentice Joined: 24 Jun 2004 Posts: 201

Hello,

I have kind of a noob question. Currently I have two llvm versions on my system and updating both takes an awful lot of time and resources.

sMueggli · Guru Joined: 03 Sep 2022 Posts: 486

For example

saski4711 · Apprentice Joined: 24 Jun 2004 Posts: 201

sMueggli · Guru Joined: 03 Sep 2022 Posts: 486

If you remove llvm:19, it would be reinstalled again, because you are allowing unstable packages.

I think it is possible to remove llvm:19, but you will need to mask it and recompile packages, that depend on llvm:19.

Hu · Administrator Joined: 06 Mar 2007 Posts: 22584

You might get more useful output if you expand the depclean: emerge --pretend --verbose --depclean sys-devel/llvm:19 sys-devel/llvm-toolchain-symlinks:19 '=sys-devel/llvmgold-19*'. Building on sMueggli's comment, and observing that llvmgold is not slotted, my guess would be that you allowed unstable llvmgold, so that upgraded you to llvmgold-19, which in turn required llvm:19. If you did not allow unstable llvmgold, you might avoid installing llvm:19 (at least until those both go stable).

If you want to be very aggressive, you could also use --with-bdeps=n, but beware that this will only add packages to the removal set that you will need back as soon as you update certain other packages. This might be fine for a binhost-only system, but if you are concerned about build times, then I think this is not a binhost-only system.