expat packages

[jean.lee at free.fr (Jean Lee)]

Hi all,

One more time, I have a problem :)

I am trying to compile an application which needs expat.
I have installed the "expat" and "expat-devel" packages with yum but 
when I try to compile my application, I have the following problem :
expat_external.h is not found.

This file is nowhere on my PC.
I asked other peoples and some Debian users tell me that this file is 
part of the libexpat1-dev package on their distribution.
Well, I didn't find this package with yum on the CentOS repository.

Does it mean that it is not available ?

What can I do to solve this problem?

Thank you for your answers,

Jean LEE