From 1c0e584c6468b7eb74ddb4bdd3dfb6f44e70b3ff Mon Sep 17 00:00:00 2001
From: Nick Novitski <github@nicknovitski.com>
Date: Tue, 23 Jul 2019 14:51:03 -0700
Subject: [PATCH] ngrok: fix build on darwin

---
 pkgs/tools/networking/ngrok-2/default.nix | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/pkgs/tools/networking/ngrok-2/default.nix b/pkgs/tools/networking/ngrok-2/default.nix
index 686bb1d7ebf..c74ceb055ce 100644
--- a/pkgs/tools/networking/ngrok-2/default.nix
+++ b/pkgs/tools/networking/ngrok-2/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
 
   sourceRoot = ".";
 
-  nativeBuildInputs = [ patchelfUnstable ];
+  nativeBuildInputs = optionals stdenv.isLinux [ patchelfUnstable ];
 
   unpackPhase = "cp $src ngrok";
 
@@ -32,10 +32,10 @@ stdenv.mkDerivation {
 
   installPhase = ''
     install -D ngrok $out/bin/ngrok
-
+  '' + optionalString stdenv.isLinux ''
     patchelf --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
               $out/bin/ngrok
-    '';
+  '';
 
   passthru.updateScript = ./update.sh;