[Solved]LLVM 3 blocking LLVM 4+

Laachax · n00b Joined: 03 Jun 2017 Posts: 31 Location: Null island

Hello everyone, I'm still kinda new to gentoo and I was planning to upgrade my llvm to 4.0 or better to reap the performance benefits(and have the portage slot advantage). But I seem to have reached an impass.

NeddySeagoon · Posted: Thu Jul 27, 2017 6:15 pm Post subject:

Laachax,

Your emerge output shows that you are mixing the stable and testing branches.
Why do you need a testing llvm?

Once you mix things like this, its up to you to find a set of packages that work. You keyword once package and that may have dependencies that need to be keyworded and those packages in turn ... and so on.

Which brings us back to what do you want to do?
llvm is not something you normally install deliberately. It's pulled in as a dependency of something.

Further, llvm is only slotted from version 4 onwards.

Laachax · n00b Joined: 03 Jun 2017 Posts: 31 Location: Null island

I'm looking to be able to use the slots and some nice performance upgrades(Since I have fairly new mesa and use AMDGPU).

I was considering doing mesa-9999 as well, I don't mind it randomly exploding x)

NeddySeagoon · Posted: Thu Jul 27, 2017 6:27 pm Post subject:

Laachax,

Go for it then.

You might want to make friends with quickpkg and emerge -K before you start.
That will make backing out easier.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

Laachax · n00b Joined: 03 Jun 2017 Posts: 31 Location: Null island

Ooo good idea, forgot about those options. Now time to get around this block, not sure what to do.

NeddySeagoon · Posted: Thu Jul 27, 2017 6:43 pm Post subject:

Laachax

quickpkg mesa and llvm because they will be replaced.
mesa-9999 is not keyworded at all, so add

Laachax · n00b Joined: 03 Jun 2017 Posts: 31 Location: Null island

** means use the latest visible package, which is 9999 right?

-1 is a one shot so it's not in the @world, thus it can avoid some things?

When I do

NeddySeagoon · Posted: Thu Jul 27, 2017 8:55 pm Post subject:

Laachax,

** matches any keyword. Including none at all, which is how all the live ebuilds are keyworded. They are invisible until you do the **
-1, --oneshot indeed keeps things out of world.

mesa is a dependency of either Xorg or some video drivers.
llvm is a dependency of mesa, so nome of what you are doing needs to be listed in world.
It won't matter right now but when dependencies change, things listed in world will be kept, even if they are not needed.

Post the output of

Laachax · n00b Joined: 03 Jun 2017 Posts: 31 Location: Null island

emerge --info

NeddySeagoon · Posted: Thu Jul 27, 2017 10:21 pm Post subject:

Laachax,

wayland should be a global USE flag.

You either want wayland or you don't. Its rather like Xorg ... you want it all or you want none of it.
You have wayland set on something in package.use

To build mesa with wayland support you need the testing dev-libs/wayland-protocols.
Don't do what portage suggests. The[code =dev-libs/wayland-protocols-1.9 ~amd64 [/code]will lock you to a version, that will store up problems for later.

Laachax · n00b Joined: 03 Jun 2017 Posts: 31 Location: Null island

Wow, I totally thought I had wayland in my make.conf. Thanks for catching that for me, as I was planning on checking out wayland soon and that certainly would have been a rude awakening!

Now that I'm waiting on that to compile I checked emerge -p1 llvm and it still gets blocked by the llvm3.9 my system has, doing -pvc leads me to believe I can't remove it without removing mesa.