From fb6907e3d68f1373917b8c46f4cd1abb341f4bbd Mon Sep 17 00:00:00 2001
From: Samuel Dionne-Riel <samuel@dionne-riel.com>
Date: Wed, 1 Aug 2018 18:30:03 -0400
Subject: [PATCH] Removes unused variable from `nix-build/nix-shell`

This particular `shell` variable wasn't used, since a new one was
declared in the only side of the `if` branch that used a `shell`
variable.

It could realistically confuse developers thinking it could use `$SHELL`
under some situations.
---
 src/nix-build/nix-build.cc | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/nix-build/nix-build.cc b/src/nix-build/nix-build.cc
index de0e9118f..35ad98731 100755
--- a/src/nix-build/nix-build.cc
+++ b/src/nix-build/nix-build.cc
@@ -85,7 +85,6 @@ void mainWrapped(int argc, char * * argv)
     BuildMode buildMode = bmNormal;
     bool readStdin = false;
 
-    auto shell = getEnv("SHELL", "/bin/sh");
     std::string envCommand; // interactive shell
     Strings envExclude;