To install the eXML Library unpack it in a directory of your choice. You will need to set the following enviroment variables to compile an eXML application:

EXML:
Pointing to the directory where you installed eXML.

GOBO:
Pointing to the directory where you installed GOBO. If you don't have GOBO, get it from http://www.gobosoft/eiffel/gobo/.