From cc45a96aea5609d3cc19460c5edf02f631df539e Mon Sep 17 00:00:00 2001
From: Will Dietz <w@wdtz.org>
Date: Fri, 1 Sep 2017 12:08:25 -0500
Subject: [PATCH] clang_34: Disable hardening bits (#28543)

---
 pkgs/top-level/all-packages.nix | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a2993b0647e..b743b7dcbe9 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5242,7 +5242,13 @@ with pkgs;
   clang_38 = llvmPackages_38.clang;
   clang_37 = llvmPackages_37.clang;
   clang_35 = wrapCC llvmPackages_35.clang;
-  clang_34 = wrapCC llvmPackages_34.clang;
+  clang_34 = (wrapCC llvmPackages_34.clang).override {
+    # Default cc-wrapper's hardening flags don't work with clang-3.4,
+    # so just remove it entirely for this wrapper.
+    extraBuildCommands = ''
+    :> $out/nix-support/add-hardening.sh
+    '';
+  };
 
   clang-tools = callPackage ../development/tools/clang-tools { };