From cb9f69c05272e638cf6ff14eab1216a06b61897d Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Tue, 23 Sep 2014 13:13:53 +0200
Subject: [PATCH] llvm: Don't depend on Python on Darwin

There already is a Python in /usr/bin, so we don't need to build
another one.
---
 pkgs/development/compilers/llvm/3.4/llvm.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/compilers/llvm/3.4/llvm.nix b/pkgs/development/compilers/llvm/3.4/llvm.nix
index f7f794f4f87b..d9dd1a976b35 100644
--- a/pkgs/development/compilers/llvm/3.4/llvm.nix
+++ b/pkgs/development/compilers/llvm/3.4/llvm.nix
@@ -27,7 +27,10 @@ in stdenv.mkDerivation rec {
     mv compiler-rt-* $sourceRoot/projects/compiler-rt
   '';
 
-  buildInputs = [ perl groff cmake libxml2 python libffi ] ++ stdenv.lib.optional stdenv.isLinux valgrind;
+  buildInputs =
+    [ perl groff cmake libxml2 libffi ]
+    ++ stdenv.lib.optional (!stdenv.isDarwin) python
+    ++ stdenv.lib.optional stdenv.isLinux valgrind;
 
   propagatedBuildInputs = [ ncurses zlib ];