CVS and Build: CVS "related" question

[Michael McGrady]

I am preparing to do some minor work on the documentation.  Today this, 
tomorrow the whorls.

I have WinCVS, Ant and Eclipse humming along.  Tra la la!  I am learning 
the standard CVS gig.  I have a "CVS related" question.

I have got WinCVS to download the struts CVS repository.  Now on to the build.
FIRST BOTTOM WATER QUESTION
Do I build the struts code in the WinCVS or transfer it elsewhere and build 
it there?  I assume the latter.  But, thought I had better check that 
out.  If you are inclined to answer this question, you might want to 
include the answer to the obvious corollary that will be coming regarding 
changing the CVS from changes made in the build.  Or do you make changes in 
the CVS and rebuilt prior to testing?

Thanks.
Michael