From af454ea92e2e20a48c9c4efbdb657e71896ac95c Mon Sep 17 00:00:00 2001
From: Mathieu Boespflug <m@tweag.io>
Date: Sun, 20 Dec 2015 18:35:22 +0100
Subject: [PATCH] Add nix section to stack.yaml (disabled by default).

This makes it possible to build and install Stack on systems where the
system dependencies (namely zlib) are not present or not installed at
the location GHC/Cabal expects them (e.g NixOS).
---
 stack.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/stack.yaml b/stack.yaml
index 123994f29c..e23f646ca5 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -4,3 +4,9 @@ image:
     base: "fpco/ubuntu-with-libgmp:14.04"
     entrypoints:
       - stack
+
+nix:
+  # --nix on the command-line to enable.
+  enable: false
+  packages:
+  - zlib