Running "java org.apache.tools.ant.Main -buildfile bbuild.xml" command will be ok!
Running "java org.apache.tools.ant.Main -buildfile abuild.xml" command will fail if the the previous command hasn't been
ran!
--project a's
abuild.xml
<project name="a"
default="core" basedir="."/>
<target
name="init">
<property
name="a.src" ../>
<property
name="a.build" ../>
...
</target>
<target
name="components"
depends="init">
<!-- the
following task won't work -->
<ant dir="${b.home}/src" target="core"/>
<ant dir="${b.home}/src" target="core"/>
</target>
<target name="compile"
depends="components">
<copy ...>
<!-- copy ${b.home}/build/classes
directory's *.class to the ${a.build}
directory-->
</copy>
<javac src="${a.src}" dest="${a.build}" classpath="${a.build}"/>
</target>
<javac src="${a.src}" dest="${a.build}" classpath="${a.build}"/>
</target>
<target
name="core" depends="compile">
</project>
--project b's
bbuild.xml
<project name="b"
default="core" basedir=".">
<target
name="init">
<property name="b.classpath" value="../lib/castor.jar:${java.class.path}"/>
<property name="b.classpath" value="../lib/castor.jar:${java.class.path}"/>
...
</target>
</target>
<target name="compile"
depends="init">
<!-- if the core target is called from "abuild.xml"'s components
target,
the
ant will say that it can't find the classes which is located in
the "castor.jar" jar file
-->
<javac classpath=${b.classpath} dest="${b.home}/build/classes" .../>
</target>
<javac classpath=${b.classpath} dest="${b.home}/build/classes" .../>
</target>
<target name="core"
depends="compile">
</project>
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