Installing vagrant on darwin from HEAD fails with missing kernelArch

[cresh]

Issue description

nix-env -f ~/nixpkgs/ -i vagrant --show-trace
installing 'vagrant-2.2.0'
error: while evaluating the attribute 'postInstall' of the derivation 'vagrant-2.2.0' at /Users/crestani/nixpkgs/pkgs/development/ruby-modules/gem/default.nix:94:3:
while evaluating 'makeSearchPath' at /Users/crestani/nixpkgs/lib/strings.nix:122:5, called from /Users/crestani/nixpkgs/pkgs/development/tools/vagrant/default.nix:56:23:
while evaluating anonymous function at /Users/crestani/nixpkgs/lib/strings.nix:123:77, called from undefined position:
while evaluating anonymous function at /Users/crestani/nixpkgs/pkgs/development/tools/vagrant/default.nix:57:15, called from undefined position:
while evaluating the attribute 'buildInputs' of the derivation 'libguestfs-1.38.6' at /Users/crestani/nixpkgs/pkgs/development/libraries/libguestfs/default.nix:13:3:
while evaluating the attribute 'buildInputs' of the derivation 'systemd-239.20190110' at /Users/crestani/nixpkgs/pkgs/os-specific/linux/systemd/default.nix:22:3:
while evaluating the attribute 'ARCH' of the derivation 'linux-headers-4.18.3' at /Users/crestani/nixpkgs/pkgs/os-specific/linux/kernel-headers/default.nix:8:5:
while evaluating the attribute 'hostPlatform.platform.kernelArch' at /Users/crestani/nixpkgs/lib/systems/default.nix:26:7:
missing kernelArch

Steps to reproduce

• Bleeding-edge checkout of nix-pkgs in ~/nix-pkgs
• nix-env -f ~/nixpkgs/ -i vagrant --show-trace

Technical details

Please run nix-shell -p nix-info --run "nix-info -m" and paste the
results.

• system: "x86_64-darwin"
• host os: Darwin 18.2.0, macOS 10.14.2
• multi-user?: no
• sandbox: no
• version: nix-env (Nix) 2.1.3
• channels(crestani): "nixpkgs-19.03pre153206.f753852e11d"
• nixpkgs: /Users/crestani/.nix-defexpr/channels/nixpkgs

[matthewbauer]

I think this should fix it:

diff --git a/pkgs/development/tools/vagrant/default.nix b/pkgs/development/tools/vagrant/default.nix
index b8ba30361aa..ace4904b663 100644
--- a/pkgs/development/tools/vagrant/default.nix
+++ b/pkgs/development/tools/vagrant/default.nix
@@ -1,4 +1,5 @@
-{ lib, fetchurl, buildRubyGem, bundlerEnv, ruby, libarchive, libguestfs, qemu, writeText, withLibvirt ? true}:
+{ stdenv, lib, fetchurl, buildRubyGem, bundlerEnv, ruby, libarchive
+, libguestfs, qemu, writeText, withLibvirt ? stdenv.isLinux }:
 
 let
   # NOTE: bumping the version and updating the hash is insufficient;

[cresh]

Yes, that works! Thank you!

[anmonteiro]

I'm getting this too. Is this gonna be fixed in nixpkgs, or should I use a custom derivation in my config?

[matthewbauer]

It should be on master now