lua wrapper: Fix bash error

Recently, we made it harder for external code to use some stdenv-only bash
variables by unsetting them in [1] But Lua's `withPackages` was sourcing some
setup hooks in [2], which required those bash variables.

I say great! We caught something bad: Lua should use normal dependencies, even
though that is harder with `buildEnv`. Now it works that way, and everything is
fine.

[1]: https://github.com/NixOS/nixpkgs/blob/9d3911f806034197bb7ace586cc3696ffce7f447/pkgs/stdenv/generic/setup.sh#L574-L578

[2]: https://github.com/NixOS/nixpkgs/blob/9d3911f806034197bb7ace586cc3696ffce7f447/pkgs/development/interpreters/lua-5/wrapper.nix#L23-L27

CC @matthewbauer

1 files changed, 5 insertions, 8 deletions

diff --git a/pkgs/development/interpreters/lua-5/wrapper.nix b/pkgs/development/interpreters/lua-5/wrapper.nix
index 816744e61cf..53ec2baeb5e 100644
--- a/pkgs/development/interpreters/lua-5/wrapper.nix
+++ b/pkgs/development/interpreters/lua-5/wrapper.nix
@@ -11,7 +11,7 @@
 let
   env = let
     paths =  requiredLuaModules (extraLibs ++ [ lua ] );
-  in buildEnv {
+  in (buildEnv {
     name = "${lua.name}-env";
 
     inherit paths;
@@ -20,12 +20,6 @@ let
 
     # we create wrapper for the binaries in the different packages
     postBuild = ''
-
-      . "${makeWrapper}/nix-support/setup-hook"
-
-      # get access to lua functions
-      . ${lua}/nix-support/setup-hook
-
       if [ -L "$out/bin" ]; then
           unlink "$out/bin"
       fi
@@ -68,5 +62,8 @@ let
         '';
     };
     };
-  };
+  }).overrideAttrs (_: {
+    # Add extra deps needed for postBuild hook.
+    nativeBuildInputs = [ makeWrapper lua ];
+  });
 in env