libxml or libxml2

I want to use an xml parser which will be run on开发者_StackOverflow社区 an embedded system.

Which one should I use, libxml or libxml2?

What are the benefits of each regarding embedded systems?

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As written in libxml2 FAQ, you should only go with libxml if you have backward compatibility concerns. Therefore, I advise to go with libxml2 which is

known to be very portable