From ab51ddcc1b693d89da660fe38ef2bf9df13cc8c5 Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Thu, 19 Sep 2013 17:04:59 -0400
Subject: [PATCH] do not try to clean directories that have already been
 removed

---
 lib/rscons.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/rscons.rb b/lib/rscons.rb
index 8a22bfb..4cc3efe 100644
--- a/lib/rscons.rb
+++ b/lib/rscons.rb
@@ -32,6 +32,7 @@ module Rscons
     end
     # remove all created directories if they are empty
     cache.directories.sort {|a, b| b.size <=> a.size}.each do |directory|
+      next unless File.directory?(directory)
       if (Dir.entries(directory) - ['.', '..']).empty?
         Dir.rmdir(directory) rescue nil
       end