make/build.xml

@@ -123,10 +123,11 @@
            includeantruntime="false" fork="true">
       <compilerarg value="-J-Djava.ext.dirs="/>
       <compilerarg value="-Xlint:unchecked"/>
       <compilerarg value="-Xlint:deprecation"/>
       <compilerarg value="-XDignore.symbol.file"/>
+      <compilerarg value="-Xdiags:verbose"/>
     </javac>
     <copy todir="${build.classes.dir}/META-INF/services">
        <fileset dir="${meta.inf.dir}/services/"/>
     </copy>
      <copy todir="${build.classes.dir}/jdk/nashorn/api/scripting/resources">

@@ -241,10 +242,11 @@
            encoding="${javac.encoding}"
            includeantruntime="false" fork="true">
         <compilerarg value="-J-Djava.ext.dirs="/>
         <compilerarg value="-Xlint:unchecked"/>
         <compilerarg value="-Xlint:deprecation"/>
+        <compilerarg value="-Xdiags:verbose"/>
     </javac>
 
     <copy todir="${build.test.classes.dir}/META-INF/services">
        <fileset dir="${test.src.dir}/META-INF/services/"/>
     </copy>