bin/powder in powder-0.3.0.pre3 vs bin/powder in powder-0.3.0.pre4

@@ -227,12 +227,17 @@
     desc "remove", "An alias to Unlink (deprecated)"
     alias :remove :unlink
 
     desc "cleanup", "Clean up invalid symbolic link"
     def cleanup
-      Dir[POW_PATH + "/*"].map { |symlink|
-        FileUtils.rm(symlink) unless File.exists? File.readlink(symlink)
-      }
+      Dir[POW_PATH + "/*"].map do |symlink|
+        begin
+          FileUtils.rm(symlink) unless File.exists?(File.readlink(symlink))
+        rescue
+          # Not all platforms support File.readlink, thus throwing exceptions.
+          # Unfortunately we can't decide then if a symlink is invalid.
+        end
+      end
     end
 
     desc "install", "Installs or updates pow"
     def install
       %x{curl get.pow.cx | sh}