Add classpathref to CheckStyle task to allow finding FOP Exceptions.

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@279441 13f79535-47bb-0310-9956-ffa450edef68

build.xml

@@ -778,7 +778,8 @@ list of possible build targets.
     <fail message="Please put checkstyle-all-*.jar in the lib directory. Get it from http://checkstyle.sourceforge.net" unless="checkstyle.available"/>
     <taskdef name="checkstyle" classname="com.puppycrawl.tools.checkstyle.CheckStyleTask" classpathref="checkstylepath"/>
 
-    <checkstyle config="checkstyle-3.5-fop-head.xml" failonviolation="false">
+    <checkstyle config="checkstyle-3.5-fop-head.xml" failonviolation="false"
+                classpathref="libs-run-classpath">
       <fileset dir="${src.java.dir}" includes="**/*.java"/>
       <formatter type="plain" toFile="${build.dir}/checkstyle_report.txt"/>
       <formatter type="xml" toFile="${build.dir}/checkstyle_report.xml"/>