ghcWithHoogle: deal gracefully with packages that have no haddockDir attribute

2017-08-19 17:20:39 +02:00 · 2017-08-19 17:20:39 +02:00 · 6fe751fb5c
commit 6fe751fb5c
parent 01b8c4c9e5
1 changed files with 1 additions and 1 deletions
--- a/pkgs/development/haskell-modules/hoogle.nix
+++ b/pkgs/development/haskell-modules/hoogle.nix
@ -87,7 +87,7 @@ stdenv.mkDerivation {
        ln -sfn ${el.haddockDir} "$out/share/doc/hoogle/${el.name}"
      '')
      (lib.filter (el: el.haddockDir != null)
-        (builtins.map (p: { haddockDir = p.haddockDir p;
+        (builtins.map (p: { haddockDir = if p ? haddockDir then p.haddockDir p else null;
                            name = p.pname; })
          docPackages))}