How to customize build files so that a custom dissector can use libxml2

I am building a dissector for a proprietary protocol with an XML payload, and the Wireshark xml dissector does not fit my need (I have to customize a few things, make some translations, ...).

I thought of using libxml2 to parse this payload but I do not know how to modify build files to include libxml2. Maybe I can use libxml2-2.dll, located in Wireshark-win64-libs-2.0\gtk2\bin but I can not find any include folder with libxml2 header files (I am using Wireshark 2.0.2 source code), but I don't know how.

Thank you