From e822cc9c44e07e7defb273bf5f0550b111921f81 Mon Sep 17 00:00:00 2001
From: "Jason \"Don\" O'Conal" <lovek323@gmail.com>
Date: Thu, 15 Aug 2013 13:53:43 +1000
Subject: [PATCH] p7zip: fix build on darwin

---
 pkgs/tools/archivers/p7zip/default.nix | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/pkgs/tools/archivers/p7zip/default.nix b/pkgs/tools/archivers/p7zip/default.nix
index 767e85d67733..ff51b28f34bb 100644
--- a/pkgs/tools/archivers/p7zip/default.nix
+++ b/pkgs/tools/archivers/p7zip/default.nix
@@ -8,11 +8,12 @@ stdenv.mkDerivation rec {
     sha256 = "10j7rc1nzdp7vvcpc3340yi3qw7abby4szv8zkwh10d0zizpwma9";
   };
 
-  preConfigure =
-    ''
-      makeFlagsArray=(DEST_HOME=$out)
-      buildFlags=all3
-    '';
+  preConfigure = ''
+    makeFlagsArray=(DEST_HOME=$out)
+    buildFlags=all3
+  '' + stdenv.lib.optionalString stdenv.isDarwin ''
+    cp makefile.macosx_64bits makefile.machine
+  '';
 
   enableParallelBuilding = true;