ttyrec: fix build on Darwin (#27500)

therealpxc · Mic92 · commit 010163d04de8 · 2017-07-19T17:46:34.000+01:00
* ttyrec: fix build on Darwin

* ttyrec: remove pointless empty list
diff --git a/pkgs/tools/misc/ttyrec/default.nix b/pkgs/tools/misc/ttyrec/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl }:
+{ stdenv, fetchurl, buildPlatform }:
 
 stdenv.mkDerivation rec {
   name = "ttyrec-${version}";
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
 
   patches = [ ./clang-fixes.patch ];
 
-  makeFlags = [ "CFLAGS=-DSVR4" ]
+  makeFlags = stdenv.lib.optional buildPlatform.isLinux "CFLAGS=-DSVR4"
     ++ stdenv.lib.optional stdenv.cc.isClang "CC=clang";
 
   installPhase = ''
