specify dependencies
diff --git a/ivy.xml b/ivy.xml
new file mode 100644
index 0000000..4f5fec9
--- /dev/null
+++ b/ivy.xml
@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+-->
+<ivy-module version="2.0">
+ <info organisation="Apache Ant"
+ module="${artifact.name}"
+ revision="${artifact.version}"
+ publication="${artifact.publication.datetime}">
+ <license name="Apache Software License 2.0"
+ url="http://www.apache.org/licenses/LICENSE-2.0"/>
+ <ivyauthor name="Apache Ant Development Team"
+ url="http://ant.apache.org/"/>
+ <description homepage="http://ant.apache.org/antlibs/compress/">
+ Provides tasks and types that deal with AR, ARJ, CPIO, TAR,
+ DUMP, 7Z and ZIP archives as well as BZIP2, PACK200, GZIP, LZMA
+ and XZ compressed files based on Apache Commons Compress.
+ </description>
+ </info>
+ <configurations>
+ <conf name="default" description="full antlib with all dependencies"/>
+ <conf name="test" description="dependencies used for junit testing the antlib" visibility="private" />
+ </configurations>
+ <publications xmlns:e="urn:ant.apache.org:ivy-extras">
+ <artifact name="${artifact.name}" type="pom" ext="pom"/>
+ <artifact name="${artifact.name}" type="pom.asc" ext="pom.asc"/>
+ <artifact name="${artifact.name}" type="jar" ext="jar"/>
+ <artifact name="${artifact.name}" type="jar.asc" ext="jar.asc"/>
+ <artifact name="${artifact.name}" type="source" ext="jar"
+ e:classifier="sources"/>
+ <artifact name="${artifact.name}" type="source.asc" ext="jar.asc"
+ e:classifier="sources"/>
+ <artifact name="${artifact.name}" type="javadoc" ext="jar"
+ e:classifier="javadoc"/>
+ <artifact name="${artifact.name}" type="javadoc.asc" ext="jar.asc"
+ e:classifier="javadoc"/>
+ <artifact name="${artifact.name}" type="ivy" ext="xml"
+ e:classifier="ivy"/>
+ <artifact name="${artifact.name}" type="ivy.asc" ext="xml.asc"
+ e:classifier="ivy"/>
+ </publications>
+ <dependencies>
+ <dependency org="org.apache.commons" name="commons-compress" rev="1.8" conf="default"/>
+ <dependency org="org.tukaani" name="xz" rev="1.5" conf="default"/>
+ <dependency org="junit" name="junit" rev="4.11" conf="test->default"/>
+ </dependencies>
+</ivy-module>
