[spiff]

if you don't know the basics of compiling software, why on earth take on a job?

this is, frankly, trivial business. you have a system library, managed by apt. this sits in /usr/lib with headers in /usr/include - it's a system library after all. and you have a library you build and install manually. this goes to /usr/local as normal with non-system managed libraries.

remove the system library;
$ sudo apt-get remove libtag1 (strictly speaking you don't have to remove the runtime bits but whatever).

build the manual one
$ make -C lib/taglib

install it
$ make -C lib/taglib install

configure xbmc to pick up the new library
$ ./configure

build the fucker
$ make

[dkardell]

I'll keep looking. Thank you