[Nix-dev] Unable to install clang/llvm 3.9

[Layus]

Hi Wink,

Apparently llvm 3.9 was merged, but the usual aliases (llvm_39, 
clang_39) were not added.
See the initial commit, with the line where aliases are defined at [1]

As a workaround, you should be able to install 
nixos-small.llvmPackages_39.{llvm,clang}.

If you feel in the mood, why not submit a pull-request that adds aliases 
for llvm_39 and clang_39 ?
It's just two lines in pkgs/top-level/all-packages.nix.

[1] 
https://github.com/NixOS/nixpkgs/commit/15af9082ebeb2aece84e426daf7185715cfbb203/pkgs/top-level/all-packages.nix#diff-036410e9211b4336186fc613f7200b12R4894

On 14/09/16 07:23, Wink Saville wrote:
> As far as I can tell llvm 3.9 is in nixos-unstable-small
> (https://goo.gl/3jkeuz) yet I'm not seeing llvm when I do a query:
>
> [wink at vps1:~]$ sudo nix-channel --list
>
> [wink at vps1:~]$ nix-channel --list
> nixos-small https://nixos.org/channels/nixos-unstable-small
>
> [wink at vps1:~]$ nix-channel --update
> downloading Nix expressions from
> ‘https://nixos.org/releases/nixos/unstable-small/nixos-17.03pre91378.1781e95//nixexprs.tar.xz’...
> downloading ‘https://nixos.org/releases/nixos/unstable-small/nixos-17.03pre91378.1781e95//nixexprs.tar.xz’...
> [1984/7708 KiB, 1860.2 KiB/s]
> unpacking channels...
>
> [wink at vps1:~]$ nix-env -u
>
> [wink at vps1:~]$ nix-env -qaP llvm
> nixos-small.llvm_34  llvm-3.4.2
> nixos-small.llvm_35  llvm-3.5.2
> nixos-small.llvm_36  llvm-3.6.2
> nixos-small.llvm     llvm-3.7.1
> nixos-small.llvm_38  llvm-3.8.0
>
> So what have I done wrong or am I incorrect that llvm-3.9.0 is in
> nixos-unstable-small?
>
>
> On Mon, Sep 12, 2016 at 2:27 PM, Layus <layus.on at gmail.com> wrote:
>> 3.9 was added to master two days ago[1]. You have to wait for it to reach
>> the unstable channel and update, of install it from a checkout of nixpkgs.
>>
>> [1]
>> https://github.com/NixOS/nixpkgs/tree/master/pkgs/development/compilers/llvm
>>
>>
>> On 12/09/16 19:48, Wink Saville wrote:
>>> Thanks for the info, that helps, oh and I'm running NixOS which I
>>> installed using
>>> 16.03 on to a virtual private server and my configuration.nix file is
>>> here (https://goo.gl/cXjV8E) and here is my uname info:
>>>
>>> [wink at vps1:~]$ uname -a
>>> Linux vps1 4.4.20 #1-NixOS SMP Wed Sep 7 06:32:59 UTC 2016 x86_64
>>> GNU/Linux
>>>
>>>
>>> It seems I don't have 3.9.0 available, how do I get it?
>>>
>>> [wink at vps1:~]$ nix-env -qaP llvm
>>> warning: name collision in input Nix expressions, skipping
>>> ‘/home/wink/.nix-defexpr/channels_root/nixos’
>>> nixos.llvm_34  llvm-3.4.2
>>> nixos.llvm_35  llvm-3.5.2
>>> nixos.llvm_36  llvm-3.6.2
>>> nixos.llvm     llvm-3.7.1
>>> nixos.llvm_38  llvm-3.8.0
>>>
>>> [wink at vps1:~]$ nix-env -qaP clang-wrapper
>>> warning: name collision in input Nix expressions, skipping
>>> ‘/home/wink/.nix-defexpr/channels_root/nixos’
>>> nixos.clangSelf  clang-wrapper-3.4.2
>>> nixos.clang_34   clang-wrapper-3.4.2
>>> nixos.clang_35   clang-wrapper-3.5.2
>>> nixos.clang_36   clang-wrapper-3.6.2
>>> nixos.clang      clang-wrapper-3.7.1
>>> nixos.clang_38   clang-wrapper-3.8.0
>>>
>>> (Btw, what have I done to cause the 'warning: name collision'?)
>>>
>>> On Mon, Sep 12, 2016 at 10:24 AM Layus <layus.on at gmail.com> wrote:
>>>> Hi,
>>>>
>>>> You can install llvm with nix-env -iA nixos.llvm nixos.clang (replace
>>>> nixos by nixpkgs if you are not using NixOS).
>>>> If you want a specific version, you can install llvm_XX and clang_XX as
>>>> in nix-env -iA nixos.llvm_34 nixos.clang_34.
>>>>
>>>> For your issue, it arises because you want to install “llvm” which exists
>>>> in different versions.
>>>> Usually we provide a default one, but it seems currently broken in your
>>>> channel.
>>>> The fix I provide installs the package by its attribute name (-A option),
>>>> whis is, by construction, unique.
>>>>
>>>> nix-env is unable to pick the right llvm/clang amongst:
>>>>
>>>> $ nix-env -qaP llvm
>>>> nixos.llvm_34    llvm-3.4.2
>>>> nixos.llvm_35    llvm-3.5.2
>>>> nixos.llvm_36    llvm-3.6.2
>>>> nixos.llvm       llvm-3.7.1
>>>> nixos.llvm_38    llvm-3.8.0
>>>> $ nix-env -qaP clang-wrapper
>>>> nixos.clangSelf    clang-wrapper-3.4.2
>>>> nixos.clang_34     clang-wrapper-3.4.2
>>>> nixos.clang_35     clang-wrapper-3.5.2
>>>> nixos.clang_36     clang-wrapper-3.6.2
>>>> nixos.clang        clang-wrapper-3.7.1
>>>> nixos.clang_38     clang-wrapper-3.8.0
>>>>
>>>> — Layus.
>>>>
>>>> On 12/09/16 18:58, Wink Saville wrote:
>>>>
>>>> I'm unable to install clang/llvm 3.9.0:
>>>>
>>>> [wink at vps1:~]$ nix-env -qa llvm
>>>> warning: name collision in input Nix expressions, skipping
>>>> ‘/home/wink/.nix-defexpr/channels_root/nixos’
>>>> llvm-3.4.2
>>>> llvm-3.5.2
>>>> llvm-3.6.2
>>>> llvm-3.7.1
>>>> llvm-3.8.0
>>>>
>>>> [wink at vps1:~]$ nix-env -qa clang
>>>> warning: name collision in input Nix expressions, skipping
>>>> ‘/home/wink/.nix-defexpr/channels_root/nixos’
>>>> clang-3.7.1
>>>>
>>>>
>>>>
>>>> I'm currently on nixos-unstable-small:
>>>>
>>>> [wink at vps1:~]$ nix-channel --list
>>>> nixos https://nixos.org/channels/nixos-unstable-small
>>>>
>>>> What am I doing wrong?
>>>>
>>>> -- Wink
>>>> _______________________________________________
>>>> nix-dev mailing list
>>>> nix-dev at lists.science.uu.nl
>>>> http://lists.science.uu.nl/mailman/listinfo/nix-dev
>>
>>