From fa9f240c658446d89c98f1ba6589b2b34472a3b8 Mon Sep 17 00:00:00 2001
From: Spencer Janssen <sjanssen@cse.unl.edu>
Date: Tue, 11 Dec 2007 08:45:06 +0100
Subject: Delete windows from waitingUnmap that aren't waitng for any unmaps

darcs-hash:20071211074506-a5988-86d61a18c3480ed6aab7acac068c59b5db062b81
---
 XMonad/Main.hs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/XMonad/Main.hs b/XMonad/Main.hs
index a312333..c25eabf 100644
--- a/XMonad/Main.hs
+++ b/XMonad/Main.hs
@@ -151,7 +151,9 @@ handle (UnmapEvent {ev_window = w, ev_send_event = synthetic}) = whenX (isClient
     e <- gets (fromMaybe 0 . M.lookup w . waitingUnmap)
     if (synthetic || e == 0)
         then unmanage w
-        else modify (\s -> s { waitingUnmap = M.adjust pred w (waitingUnmap s) })
+        else modify (\s -> s { waitingUnmap = M.update mpred w (waitingUnmap s) })
+ where mpred 1 = Nothing
+       mpred n = Just $ pred n
 
 -- set keyboard mapping
 handle e@(MappingNotifyEvent {}) = do
-- 
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