overriding ant.properties in my home directory

[Kathey Marsden]

  This is really more of  an ant question but I couldn't find the 
answer by google or at the ant site, so I am hoping someone who builds 
derby will know the answer.

I have a shared home directory on diffferent machines but want to 
specify a different ant.properties on the different machines to reflect 
machine specific locations.  Is there a way I can override the default 
ant.properties location and use a different ant.properties file for my 
build?

Thanks

Kathey