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make-derivation: use ? instead of builtins.hasAttr

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As suggested by @edolstra
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Patrick Hilhorst 2018-10-29 15:17:13 +01:00
parent 2962f94fec
commit 5be927db14
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pkgs/stdenv/generic/make-derivation.nix
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@ -12,7 +12,7 @@ rec {
# * https://nixos.org/nix/manual/#ssec-derivation # * https://nixos.org/nix/manual/#ssec-derivation
# Explanation about derivations in general # Explanation about derivations in general
mkDerivation = mkDerivation =
{ name ? if builtins.hasAttr "pname" attrs && builtins.hasAttr "version" attrs { name ? if attrs ? pname && attrs ? version
then "${attrs.pname}-${attrs.version}" then "${attrs.pname}-${attrs.version}"
else "" else ""