xine-ui: setting path to xine before installing xine-ui

I am trying to install Xinge-ui (xine-ui-0.9.13.tar.gz) and I just 
installed Xine-lib (xine-lib-0.9.13.tar.gz).
I was at
http://dvd.sourceforge.net/xine-howto/en_GB/html/howto-3.html#ss3.1
..and it says to me:

    "IMPORTANT! Before you can compile xine-ui, you may need to inform 
your system of the location of the xine    
    libraries, you may need to set the LD_LIBRARY_PATH environment 
variable to the directory you installed the xine library
    and/or run the ldconfig program. For example, if you had installed 
xine-lib to /usr/local, you may need to enter the    
    following command before compiling xine-ui.

  $ export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH

But I don't know where Xine-lib was installed, so I can't set the path.
Some idea?
(it's not in /usr/local/ or /usr/local/lib or /usr/local/man, according 
INSTALL file)
   "By default, `make install' will install the package's files in
    `/usr/local/bin', `/usr/local/man', etc. "

thanks
a.

-- 
Adagilson Batista Bispo da Silva
Bibliotecário
FIOCRUZ-Centro de Pesquisa Aggeu Magalhães
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