From 1cc135b7c772fb1ab9faadaadc304fbe9aac15b8 Mon Sep 17 00:00:00 2001
From: Ben Sima <ben@bsima.me>
Date: Sat, 23 Nov 2019 17:04:27 -0800
Subject: Make all warnings errors in GHC

---
 .ghci                            | 2 +-
 Com/Simatime/buildHaskellApp.nix | 8 ++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/.ghci b/.ghci
index 08406ce..79c0fa3 100644
--- a/.ghci
+++ b/.ghci
@@ -1,4 +1,4 @@
 :set -XOverloadedStrings
 :set prompt "λ "
 :set prompt-cont "| "
-:set -Wall
+:set -Werror
diff --git a/Com/Simatime/buildHaskellApp.nix b/Com/Simatime/buildHaskellApp.nix
index c9011e0..853487d 100644
--- a/Com/Simatime/buildHaskellApp.nix
+++ b/Com/Simatime/buildHaskellApp.nix
@@ -59,12 +59,16 @@ in {
       #
       # compile with ghc
       #
-      ${ghc}/bin/ghc -i. --make ${apexPath}.hs -main-is ${pathToNs apexPath} \
+      ${ghc}/bin/ghc -Werror -i. \
+          --make ${apexPath}.hs \
+          -main-is ${pathToNs apexPath} \
           -o $out/bin/${nick}
       #
       # compile with ghcjs
       #
-      ${ghcjs}/bin/ghcjs -i. --make ${aeroPath}.hs -main-is ${pathToNs aeroPath} \
+      ${ghcjs}/bin/ghcjs -Werror -i. \
+          --make ${aeroPath}.hs \
+          -main-is ${pathToNs aeroPath} \
           -o ${aeroPath}
       #
       # optimize js output
-- 
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