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Don't break compatibility with pre-1.6 nix

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Signed-off-by: Shea Levy <shea@shealevy.com>
This commit is contained in:
Shea Levy 2013-09-24 09:40:06 -04:00
parent ec2266b2e2
commit 9ce148e738
1 changed files with 1 additions and 1 deletions
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2
modules/config/shells-environment.nix
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@ -28,7 +28,7 @@ in
merge = xs:
let xs' = evalProperties xs; in
if isList (head xs') then concatLists xs'
else if length xs' > 1 then abort "variable in ‘environment.variables’ has multiple values"
else if builtins.lessThan 1 (length xs') then abort "variable in ‘environment.variables’ has multiple values"
else if !builtins.isString (head xs') then abort "variable in ‘environment.variables’ does not have a string value"
else head xs';
});