1.9.10/ant/build-mini.xml

<?xml version="1.0" standalone='yes'?>
<!-- This Ant build file fragment contains target(s) needed to build
     "mini" version of the core parser+generator package
  -->

<project name="Mini-build tasks for Jackson" basedir=".">
    <property name="dir.build.classes.mini" location="${dir.build}/classes/mini" />
    <target name="compile.mini" depends="prepare">
        <mkdir dir="${dir.build.classes.mini}" />
        <javac srcdir="${dir.src.java.core}" destdir="${dir.build.classes.mini}"
            source="1.5" target="1.5"
            debug="false" includeantruntime="false"
        >
            <compilerarg value="-Xlint:unchecked" />
            <exclude name="**/package-info.java" />
            <!-- and do NOT compile things that we can live without: -->
            <exclude name="org/codehaus/jackson/annotate/*.java" />
            <exclude name="org/codehaus/jackson/util/TokenBuffer.java" />
            <include name="org/codehaus/**/*.java" />
        </javac>
        <copy file="${dir.build}/VERSION.txt" toDir="${dir.build.classes.core}/org/codehaus/jackson/impl" />

        <!--
          -->
    </target>

    <target name="jar.mini" depends="compile.mini">
      <jar jarfile="${dir.build}/jackson-mini-${IMPL_VERSION}.jar" filesonly="true" >
         <manifest>
            <attribute name="Built-By" value="${user.name}"/>
            <attribute name="Specification-Title"   value="${JSON_TITLE}"/>
            <attribute name="Specification-Version" value="${JSON_VERSION}"/>
            <attribute name="Specification-Vendor"  value="${JSON_VENDOR}"/>
            <attribute name="Implementation-Title"   value="${IMPL_TITLE_CORE}"/>
            <attribute name="Implementation-Version" value="${IMPL_VERSION}"/>
            <attribute name="Implementation-Vendor"  value="${IMPL_VENDOR}"/>
          </manifest>
          <fileset dir="${dir.build.classes.mini}">
             <include name="org/codehaus/jackson/**/*.class" />
          </fileset>
        </jar>
    </target> 

</project>