From 54c1ca5fe9c7991dfc3fff0478ebe8acefefb598 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sat, 17 Mar 2018 21:15:32 +0100
Subject: [PATCH] haskell-xmonad: patch to fix the build with ghc-8.4.x

---
 .../development/haskell-modules/configuration-ghc-8.4.x.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
index 1f2f2e24650..2cc3cdb8eba 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
@@ -710,4 +710,10 @@ self: super: {
   # https://github.com/pikajude/th-printf/issues/8
   th-printf = doJailbreak super.th-printf;
 
+  # https://github.com/xmonad/xmonad/issues/155
+  xmonad = addBuildDepend (appendPatch super.xmonad (pkgs.fetchpatch
+    { url = https://github.com/xmonad/xmonad/pull/153/commits/c96a59fa0de2f674e60befd0f57e67b93ea7dcf6.patch;
+      sha256 = "1mj3k0w8aqyy71kmc71vzhgxmr4h6i5b3sykwflzays50grjm5jp";
+    })) self.semigroups;
+
 }