From 06a5aaacabd1f1d0a47345b12b29ef4eb6c16207 Mon Sep 17 00:00:00 2001
From: Franz Pletz <fpletz@fnordicwalking.de>
Date: Wed, 24 Aug 2016 20:09:17 +0200
Subject: [PATCH] ttyrec: fix build

---
 pkgs/tools/misc/ttyrec/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/tools/misc/ttyrec/default.nix b/pkgs/tools/misc/ttyrec/default.nix
index 63b91adb4936..a836a2a0d0e9 100644
--- a/pkgs/tools/misc/ttyrec/default.nix
+++ b/pkgs/tools/misc/ttyrec/default.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
 
   patches = [ ./clang-fixes.patch ];
 
-  makeFlags = []
+  makeFlags = [ "CFLAGS=-DSVR4" ]
     ++ stdenv.lib.optional stdenv.cc.isClang "CC=clang";
 
   installPhase = ''