We hava a directory hierarchy that has links in it to RCS spaces and other 
"useful" directories in the tree that I make ant traverse to build java 
(and other types of) files.
My javac task has a bunch of excludes in it to exclude all the know file 
types encountered in our directory hierarchy, however, it appears that ant 
walks all the directories building a file list that it must then go and 
apply the excludes against. (The excludes list appears to be file 
oriented).
I make this claim, as I had to constantly increase the heap space needed 
by ant as the number of linked directories increased. 
Sadly, it got to a point where ant was taking 20 minutes to run. In a 
workspace that did not have too many linked RCS directories (like,3) ant 
only takes 20 seconds to run (when there were a small number of files to 
recompile)

We are embarking on a new project that will have more linked directories 
than previously encountered and no real way to eliminate the need.

Can someone tell me how to tell ant to ignore a directory, at least for a 
javac command? 
This would be a big help.
thanks.

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