From ead242498132ae3b4a2c547f7cadbccb26c9c5a6 Mon Sep 17 00:00:00 2001
From: Dan Peebles <pumpkin@me.com>
Date: Sun, 16 Oct 2016 20:46:36 -0400
Subject: [PATCH] cctools: fix triple for the assembler

This was breaking `boost155` and would probably break anything else that
calls `as` with no explicit architecture.
---
 pkgs/os-specific/darwin/cctools/port.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/os-specific/darwin/cctools/port.nix b/pkgs/os-specific/darwin/cctools/port.nix
index af713bf61dd..2f13277d70c 100644
--- a/pkgs/os-specific/darwin/cctools/port.nix
+++ b/pkgs/os-specific/darwin/cctools/port.nix
@@ -22,6 +22,9 @@ let
 
     patches = [
       ./ld-rpath-nonfinal.patch ./ld-ignore-rpath-link.patch
+    ] ++ stdenv.lib.optionals stdenv.isDarwin [
+      # See https://github.com/tpoechtrager/cctools-port/issues/24. Remove when that's fixed.
+      ./undo-unknown-triple.patch
     ];
 
     enableParallelBuilding = true;