From 0ae0273803934f10396a65fc0cd6b50566936602 Mon Sep 17 00:00:00 2001
From: Luka Blaskovic <lblasc@znode.net>
Date: Tue, 22 Jan 2019 08:06:36 +0000
Subject: [PATCH] llvm7: backport patches, fix building rust crates with lto

See: https://github.com/rust-lang/rust/issues/57762
(cherry picked from commit c340704bd3a7784e2d5dd806ee528a243dea9172)
---
 pkgs/development/compilers/llvm/7/llvm.nix | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/pkgs/development/compilers/llvm/7/llvm.nix b/pkgs/development/compilers/llvm/7/llvm.nix
index 5800e7f021c..5bb629931fd 100644
--- a/pkgs/development/compilers/llvm/7/llvm.nix
+++ b/pkgs/development/compilers/llvm/7/llvm.nix
@@ -54,6 +54,15 @@ in stdenv.mkDerivation (rec {
       url = "https://github.com/llvm-mirror/llvm/commit/57567def148f387153a8149fb590bd39b1b006a1.patch";
       sha256 = "1w1xg5pxpc6cals1nf5j5k4p6qi8lcrpvn0paxc86m415i79xmcg";
     })
+    # backport, fix building rust crates with lto
+    (fetchpatch {
+      url = "https://github.com/llvm-mirror/llvm/commit/da1fb72bb305d6bc1f3899d541414146934bf80f.patch";
+      sha256 = "0p81gkhc1xhcx0hmnkwyhrn8x8l8fd24xgaj1whni29yga466dwc";
+    })
+    (fetchpatch {
+      url = "https://github.com/llvm-mirror/llvm/commit/cc1f2a595ead516812a6c50398f0f3480ebe031f.patch";
+      sha256 = "0k6k1p5yisgwx417a67s7sr9930rqh1n0zv5jvply8vjjy4b3kf8";
+    })
   ];
 
   postPatch = optionalString stdenv.isDarwin ''