[sigh]...nevermind. I later realized that I was on the stable channel.
I see that the fix is on the unstable channel.
-- Daniel
On Wed, Feb 25, 2015 at 05:06:58PM -0700, Daniel J Beauregard wrote:
>Hi,
>
>I am getting a puzzling error when using Haskell NG on a freshly
>installed system. My ~/.nixpkgs/config.nix is as follows:
>
>------------------------------------
>{ ... }:
>
>{
> packageOverrides = super:
> let
> self = super.pkgs;
> in {
> hsEnv = self.haskellngPackages.ghcWithPackages (p: with p; [
> mtl
> ]);
> };
>}
>------------------------------------
>
>I run 'nix-env --install --attr nixos.pkgs.hsEnv' and get the following:
>
>installing ‘haskell-env-ghc-7.8.4’
>these derivations will be built:
> /nix/store/x0msnp6a060gsxzr7x06hiqf4p95bpil-haskell-env-ghc-7.8.4.drv
>building path(s)
>‘/nix/store/yqw7dp7x4yqcqf26bvygw9ayzypgwxap-haskell-env-ghc-7.8.4’
>building /nix/store/yqw7dp7x4yqcqf26bvygw9ayzypgwxap-haskell-env-ghc-7.8.4
>created 46 symlinks in user environment
>rm: cannot remove
>'/nix/store/yqw7dp7x4yqcqf26bvygw9ayzypgwxap-haskell-env-ghc-7.8.4/bin/ghc':
>Permission denied
>builder for
>‘/nix/store/x0msnp6a060gsxzr7x06hiqf4p95bpil-haskell-env-ghc-7.8.4.drv’ failed
>with exit code 1
>error: build of
>‘/nix/store/x0msnp6a060gsxzr7x06hiqf4p95bpil-haskell-env-ghc-7.8.4.drv’ failed
>
>From what I can tell, the rm is in
>pkgs/development/askell-modules/with-packages-wrapper.nix:
>
> for prg in ghc ghci ghc-${ghc.version} ghci-${ghc.version}; do
> rm -f $out/bin/$prg
> makeWrapper ${ghc}/bin/$prg $out/bin/$prg ...
>
>The permissions on my machine for that particular file and directory:
>
>$ ls -ld
>/nix/store/yqw7dp7x4yqcqf26bvygw9ayzypgwxap-haskell-env-ghc-7.8.4/bin/{.,ghc{,-7.8.4}}
>dr-xr-xr-x 1 root root 224 Dec 31 1969
>/nix/store/yqw7dp7x4yqcqf26bvygw9ayzypgwxap-haskell-env-ghc-7.8.4/bin/.
>lrwxrwxrwx 1 root root 9 Dec 31 1969
>/nix/store/yqw7dp7x4yqcqf26bvygw9ayzypgwxap-haskell-env-ghc-7.8.4/bin/ghc ->
>ghc-7.8.4
>-r-xr-xr-x 1 root root 492 Dec 31 1969
>/nix/store/yqw7dp7x4yqcqf26bvygw9ayzypgwxap-haskell-env-ghc-7.8.4/bin/ghc-7.8.4
>
>
>Any clues on how to debug this? I am wondering if it has to do with the
>user/group assumed by nix-daemon, but I do not have much knowledge about
>that aspect. I noticed that some of the files in /nix/store have a
>group of 'nixbld', but many have the group 'root'.
>
>Thanks,
>Daniel
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