From 0382a0443664214848ccc340c8a4dc1c667617a6 Mon Sep 17 00:00:00 2001
From: Anton-Latukha <anton.latukha@gmail.com>
Date: Wed, 3 Jun 2020 20:36:42 +0300
Subject: [PATCH] default.nix: expose functionality: failOnAllWarnings; add doc

M  default.nix
---
 default.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/default.nix b/default.nix
index 6907519..e33f82a 100644
--- a/default.nix
+++ b/default.nix
@@ -10,6 +10,7 @@
 , sdistTarball ? false
 # Produce SDist tarball and build project from it
 , buildFromSdist ? true
+, failOnAllWarnings ? false
 #  2020-06-02: NOTE: enableDeadCodeElimination = true: On GHC =< 8.8.3 macOS build falls due to https://gitlab.haskell.org/ghc/ghc/issues/17283
 # Disable GHC code optimizations for faster dev loops. Enable optimizations for production use or benchmarks.
 , enableDeadCodeElimination ? false
@@ -133,6 +134,10 @@ let
         switch = buildFromSdist;
         function = pkgs.haskell.lib.buildFromSdist;
       }
+      {
+        switch = failOnAllWarnings;
+        function = pkgs.haskell.lib.failOnAllWarnings;
+      }
     ];
 
   funcOnSwitchAppliesFunction = set: object: