From 28e51c7ceac1c3df219dbf8388bf122f817459b7 Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Tue, 21 Aug 2018 14:58:14 -0400
Subject: [PATCH] ghc: Use stable URL for deterministic profiling patch.

---
 pkgs/development/compilers/ghc/8.4.3.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/compilers/ghc/8.4.3.nix b/pkgs/development/compilers/ghc/8.4.3.nix
index 923b5b6647b..522dd9cfbf0 100644
--- a/pkgs/development/compilers/ghc/8.4.3.nix
+++ b/pkgs/development/compilers/ghc/8.4.3.nix
@@ -99,8 +99,9 @@ stdenv.mkDerivation (rec {
     extraPrefix = "utils/hsc2hs/";
     stripLen = 1;
   })] ++ stdenv.lib.optional deterministicProfiling
-    (fetchpatch {
-      url = "https://phabricator-files.haskell.org/file/data/yd2fclrwulila2quki5q/PHID-FILE-lr2j63hkglwauprxycrt/D4388.diff";
+    (fetchpatch rec {
+      url = "http://tarballs.nixos.org/sha256/${sha256}";
+      name = "D4388.diff";
       sha256 = "0w6sdcvnqjlnlzpvnzw20b80v150ijjyjvs9548ildc1928j0w7s";
     })
     ++ stdenv.lib.optional stdenv.isDarwin ./backport-dylib-command-size-limit.patch;