[mkgmap-dev] Commit: r2670: Ensure thread safe handling for the drive-on-left/right flag

Version 2670 was committed by wanmil on Sun, 18 Aug 2013 Ensure thread safe handling for the drive-on-left/right flag The drive on left flag is set via a static method. This was not thread safe when using more than one thread. The flag is now stored as ThreadLocal variable which ensures that the value is used only in the current thread.