Check out the <depend> task
http://jakarta.apache.org/ant/manual/OptionalTasks/depend.html
----- Original Message -----
From: "Macey, Ian" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, April 06, 2001 10:39 PM
Subject: Make Dependencies
> How can I tell Ant that there is a dependency between two
> .java files? ie Given a.java and b.java, how do I say in Ant,
> if a.java is compiled then you must also compile b.java.
>
> Have had various attempts, the problems are getting javac
> to compile b.java even though b.class is later than b.java,
> and using something like touch, as in Ant every rule fires
> and I can't restrict the touch to occur only if a.java is compiled.
>
> Doing this with Make would be easy, but I just don't see
> how to do it with Ant... Is this a fundamental problem due
> to Ant relying on javac to know whether a file needs to be
> compiled?
>
> Ian
>
>
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