Earlier I was using some other build tool to build my project. Here if a target
is built and if the same target is used to build some other target, it compares
the timestamp and will not build the dependent targets again.
As I started working on ANT, I found it very useful and intersting. But in ANT,
while building each target, it will try to build all the dependent targets that
many times as it occurs in different targets. As a result it is increasing
project\'s build time.Is there any task to ensure that the dependent targets
once built will not be built again ????