fix pre-req existence checking

releng.wtpbuilder/distribution/incubator.site/templateFiles/index.html.template.php

@@ -236,6 +236,8 @@ if (!stristr($serverName, "eclipse.org") && !stristr($serverName,"you.are.at.ecl
         <td width="10%"></td>
         <td>Webtools Platform (at least WST)</td>
         <td align="right"><?php
+        // debug
+        echo "debug: full path: " . $eclipseFSpathPrefix . "/" . $wstMirrorPrefixuri . "/" . $wstFile;
         echo getPrereqReferenceOrName($eclipseMirrorScript, $wstMirrorPrefixuri, $wstURL, $wstFile, $eclipseFSpathPrefix);
         echo " or <a href=\"" . $wstBuildHome . "\">equivalent</a></td>";
         ?>