From 88850c19abec707c550a0456d02793db180cd736 Mon Sep 17 00:00:00 2001
From: Will Dietz <w@wdtz.org>
Date: Mon, 26 Feb 2018 19:49:51 -0600
Subject: [PATCH] swift: add include for <functional> (#35689)

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

diff --git a/pkgs/development/compilers/swift/default.nix b/pkgs/development/compilers/swift/default.nix
index 360f96e12427..0f2217157484 100644
--- a/pkgs/development/compilers/swift/default.nix
+++ b/pkgs/development/compilers/swift/default.nix
@@ -145,7 +145,6 @@ let
     url = "https://github.com/apple/swift-llbuild/commit/303a89bc6da606c115560921a452686aa0655f5e.diff";
     sha256 = "04sw7ym1grzggj1v3xrzr2ljxz8rf9rnn9n5fg1xjbwlrdagkc7m";
   };
-
 in
 stdenv.mkDerivation rec {
   name = "swift-${version_friendly}";
@@ -247,6 +246,9 @@ stdenv.mkDerivation rec {
     # https://bugs.swift.org/browse/SR-5779
     sed -i -e 's|"-latomic"|"-Wl,-rpath,${clang.cc.gcc.lib}/lib" "-L${clang.cc.gcc.lib}/lib" "-latomic"|' swift/cmake/modules/AddSwift.cmake
 
+    # https://bugs.swift.org/browse/SR-4838
+    sed -i -e '30i#include <functional>' lldb/include/lldb/Utility/TaskPool.h
+
     substituteInPlace clang/lib/Driver/ToolChains.cpp \
       --replace '  addPathIfExists(D, SysRoot + "/usr/lib", Paths);' \
                 '  addPathIfExists(D, SysRoot + "/usr/lib", Paths); addPathIfExists(D, "${glibc}/lib", Paths);'