From 14b61efa8736771a7ab549ede5b92bbbbaa5bef7 Mon Sep 17 00:00:00 2001
From: Florian Klink <flokli@flokli.de>
Date: Wed, 25 Aug 2021 15:22:50 +0200
Subject: [PATCH] dockerTools.usrBinEnv: add

This provides a /usr/bin/env, for shell scripts using the
"/usr/bin/env executable" shebang.
---
 pkgs/build-support/docker/default.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkgs/build-support/docker/default.nix b/pkgs/build-support/docker/default.nix
index 832d2949a1aa..9e4709dd9bf8 100644
--- a/pkgs/build-support/docker/default.nix
+++ b/pkgs/build-support/docker/default.nix
@@ -759,6 +759,13 @@ rec {
     ];
   };
 
+  # This provides a /usr/bin/env, for shell scripts using the
+  # "#!/usr/bin/env executable" shebang.
+  usrBinEnv = runCommand "usr-bin-env" { } ''
+    mkdir -p $out/usr/bin
+    ln -s ${pkgs.coreutils}/bin/env $out/usr/bin
+  '';
+
   # This provides /bin/sh, pointing to bashInteractive.
   binSh = runCommand "bin-sh" { } ''
     mkdir -p $out/bin