Clean the individual configurations.
Fixes [AMQNET-486]. (See https://issues.apache.org/jira/browse/AMQNET-486)

diff --git a/nant-common.xml b/nant-common.xml
index 9504104..3e5a8fc 100644
--- a/nant-common.xml
+++ b/nant-common.xml
@@ -506,9 +506,18 @@
         <if test="${target::exists('clean-init')}">

             <call target="clean-init" />

         </if>

-        <delete dir="build" if="${directory::exists('build')}" />

-        <delete dir="obj" if="${directory::exists('obj')}" />

-        <delete dir="package" if="${directory::exists('package')}" />

+        <foreach item="String" in="${build.framework.strings}" delim="," property="current.build.framework">

+            <foreach item="String" in="${build.config.strings}" delim="," property="current.build.config">

+                <call target="clean-proj" />

+            </foreach>

+        </foreach>

+    </target>

+

+    <target name="clean-proj" depends="init" description="Deletes specific project build">

+        <property name="clean.dir" value="build/${current.build.framework}/${current.build.config}" />

+        <delete dir="${clean.dir}" if="${directory::exists(clean.dir)}" />

+        <property name="clean.dir" value="package/${current.build.config}" />

+        <delete dir="${clean.dir}" if="${directory::exists(clean.dir)}" />

     </target>

 

     <target name="package" description="Bundle the source and binary distributions.">