From 60a7a4db83d53652e847104421702dd7969c4b9d Mon Sep 17 00:00:00 2001
From: Daiderd Jordan <daiderd@gmail.com>
Date: Sat, 14 Oct 2017 12:36:15 +0200
Subject: [PATCH] erlang: fix ssl on darwin

---
 pkgs/development/interpreters/erlang/R19.nix | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/interpreters/erlang/R19.nix b/pkgs/development/interpreters/erlang/R19.nix
index 680111dbd77a..5e2e1c7f215d 100644
--- a/pkgs/development/interpreters/erlang/R19.nix
+++ b/pkgs/development/interpreters/erlang/R19.nix
@@ -1,9 +1,18 @@
-{ mkDerivation, fetchurl }:
+{ mkDerivation, fetchurl, fetchpatch }:
 
 mkDerivation rec {
   version = "19.3";
   sha256 = "0pp2hl8jf4iafpnsmf0q7jbm313daqzif6ajqcmjyl87m5pssr86";
 
+  patches = [
+    # macOS 10.13 crypto fix from OTP-20.1.2
+    (fetchpatch {
+      name = "darwin-crypto.patch";
+      url = "https://github.com/erlang/otp/commit/882c90f72ba4e298aa5a7796661c28053c540a96.patch";
+      sha256 = "1gggzpm8ssamz6975z7px0g8qq5i4jqw81j846ikg49c5cxvi0hi";
+    })
+  ];
+
   prePatch = ''
     substituteInPlace configure.in --replace '`sw_vers -productVersion`' '10.10'
   '';