Trouble with libwbxml installation

Hello

I am trying to install libwbxml in Ubuntu 11.10 with cmake. I have 
installed cmake and expat. However when I run the commands in the 
Install text file, I get the following error:

**********

CMake Error: The following variables are used in this project, but 
they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in 
the CMake files:
EXPAT_INCLUDE_DIRS (ADVANCED)
    used as include directory in directory /home/---/libwbxml-0.11.0/src
    used as include directory in directory /home/---/libwbxml-0.11.0/tools
EXPAT_LIBRARIES (ADVANCED)
    linked by target "wbxml2" in directory /home/---/libwbxml-0.11.0/src

-- Configuration incomplete, errors occured!

**********

I would appreciate any help troubleshooting this!
Thanks!

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