From 08c65bc68b5bb3b63cfca6672b650c00113d3c3f Mon Sep 17 00:00:00 2001
From: Franz Pletz <fpletz@fnordicwalking.de>
Date: Sun, 17 Jul 2016 15:07:44 +0200
Subject: [PATCH] gti: Fix build on darwin

---
 pkgs/tools/misc/gti/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/tools/misc/gti/default.nix b/pkgs/tools/misc/gti/default.nix
index 39e28073abc..3705dd832e9 100644
--- a/pkgs/tools/misc/gti/default.nix
+++ b/pkgs/tools/misc/gti/default.nix
@@ -11,6 +11,10 @@ stdenv.mkDerivation rec {
     sha256 = "1wki7d61kcmv9s3xayky9cz84qa773x3y1z88y768hq8ifwadcbn";
   };
 
+  prePatch = ''
+    substituteInPlace Makefile --replace gcc cc
+  '';
+
   installPhase = ''
     mkdir -p $out/bin $out/share/man/man6
     cp gti $out/bin