From dd649a09c333c5a9b6091ef7835ac46dec68b8f2 Mon Sep 17 00:00:00 2001
From: Will Dietz <w@wdtz.org>
Date: Mon, 29 Oct 2018 10:08:58 -0500
Subject: [PATCH] llvmPackages: keep darwin at llvm5

My previous attempts to bump the Darwin stdenv version didn't
seem to work, but AFAIK doing so should be straightforward
for anyone with a Darwin builder and the interest in tackling this.

While not the preferred solution, adding a conditional lets us move on,
as we missed 6 entirely due to no one getting around to resolving the
Darwin bootstrap accordingly.
---
 pkgs/top-level/all-packages.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index df5ba4d79186..54d5849d3ed7 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7544,7 +7544,7 @@ in
   llvm_37 = llvmPackages_37.llvm;
   llvm_35 = llvmPackages_35.llvm;
 
-  llvmPackages = recurseIntoAttrs llvmPackages_7;
+  llvmPackages = recurseIntoAttrs (if stdenv.isDarwin then llvmPackages_5 else llvmPackages_7);
 
   llvmPackages_35 = callPackage ../development/compilers/llvm/3.5 ({
     isl = isl_0_14;