[PATCH FOR REVIEW]: Make source/target options explicit for def-pcompile

[Andrew John Hughes]

The def-pcompile Ant target in the langtools build does not explicitly
set the source and target options for javac.  As a result, the class
files will be built using the default versions of the javac forked by
Ant.  If this is < 1.5, the build will fail (this is the case with
ecj, for example).

The webrev:

http://cr.openjdk.java.net/~andrew/ecj/01/webrev.01/

fixes this by making the values explicit (using the boot source and
target values, currently 1.6).

Ok to push to tl?

Thanks,
-- 
Andrew :-)

Free Java Software Engineer
Red Hat, Inc. (http://www.redhat.com)

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