Help needed with ./configure

[Festa]

I am running Linux on my NAS (Buffalo Linkstation, Openlink, Kernel 2.6).

 

I am trying to install Avahi, and fighting my way through the list of dependencies it requires.

 

(ipkg, although installed, never seems to work properly so I build everything from source)

 

I am stuck with installing Expat - it stalls and exits when it looks for XML::Parser in /usr/bin

 

I have a full installation of perl, and have also installed XML::Parser, but these have installed to /usr/local/bin

 

How can I tell expat to look for the dependency in the right place at ./configure?

 

Any help much appreciated,

 

Festa