From f4f3df5f5dd5f218a188217b78567adabf399cb8 Mon Sep 17 00:00:00 2001
From: Jude Taylor <me@jude.bio>
Date: Mon, 2 Nov 2015 14:33:51 -0800
Subject: [PATCH] llvm-3.7: add libcxxabi as a buildInput on darwin

---
 pkgs/development/compilers/llvm/3.7/llvm.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/compilers/llvm/3.7/llvm.nix b/pkgs/development/compilers/llvm/3.7/llvm.nix
index 62245b479f5..863334576ee 100644
--- a/pkgs/development/compilers/llvm/3.7/llvm.nix
+++ b/pkgs/development/compilers/llvm/3.7/llvm.nix
@@ -12,6 +12,7 @@
 , version
 , zlib
 , compiler-rt_src
+, libcxxabi
 , debugVersion ? false
 }:
 
@@ -28,7 +29,8 @@ 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 python libffi ] /* ++ stdenv.lib.optional stdenv.isLinux valgrind */
+    ++ stdenv.lib.optional stdenv.isDarwin libcxxabi;
 
   propagatedBuildInputs = [ ncurses zlib ];