Also apply the xjavac classpath hack when running under libgcj.

  http://issues.apache.org/bugzilla/show_bug.cgi?id=34551
  http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=152255

--- tools/org/apache/xerces/util/XJavac.java.libgcj	2006-09-18 23:31:36.000000000 -0400
+++ tools/org/apache/xerces/util/XJavac.java	2009-01-07 14:13:34.574305922 -0500
@@ -68,7 +68,8 @@
                      (vendor.indexOf("APPLE") >= 0) ||
                      (vendor.indexOf("HEWLETT-PACKARD") >= 0) ||
                      (vendor.indexOf("KAFFE") >= 0) ||
-                     (vendor.indexOf("SABLE") >= 0)) {
+                     (vendor.indexOf("SABLE") >= 0) ||
+                     (vendor.indexOf("FREE SOFTWARE FOUNDATION") >= 0)) {
                 // we're on an SUN 1.4 or higher; fiddle with the bootclasspath.
                 // since we can't eviscerate XML-related info here,
                 // we must use the classpath