kpathsea in xdvipdfmx source files

I am trying to compile the source files for xdvipdfmx, but am having
problems with references to labels containing kpse_....
Are these references to kpathsea?

If so, can someone help me better understand this? From what I
understand, kpathsea is to help with path searching. Why is it's
presence required in xdvipdfmx? I would think that xdvipdfmx should be
a straight forward utility that converts from one device independent
format (xdv) to another (pdf). Why would it need any help from
non-ANSI-C library functions?

I want to compile a bare-bones version of xdvipdfmx for a win32
environment for the purpose of debugging xdvipdfmx, because xdvipdfmx
doesn't work properly on my system when using pstricks with XeLaTeX.

Many thanks in advance,
Dan

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