From https://github.com/haskell/ThreadScope/commit/8846508e9769a8dfd82b3ff66259ba4d58255932
From: Teo Camarasu <teo.camarasu@tracsis.com>
Date: Fri, 1 Mar 2024 11:25:47 +0000
Subject: [PATCH] Adapt to lack of Control.Monad re-exports from
 Control.Monad.Reader in mtl-2.3

---
 GUI/EventsView.hs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/GUI/EventsView.hs b/GUI/EventsView.hs
index 6f79cbbe..74d56d9e 100644
--- a/GUI/EventsView.hs
+++ b/GUI/EventsView.hs
@@ -17,6 +17,7 @@ import GHC.RTS.Events
 import Graphics.UI.Gtk
 import qualified GUI.GtkExtras as GtkExt
 
+import Control.Monad
 import Control.Monad.Reader
 import Data.Array
 import Data.Monoid
