/**
  * Clone a configuration and put it on the tmp list if it is not already a saved configuration and
  * not already on the tmp list.
  *
  * @param p project
  * @param oldId the id of the old configuration to clone
  * @param cfgd the configuration descriptor for the clone
  * @return true if the configuration is already saved, false otherwise
  */
 public synchronized boolean cloneCfg(IProject p, String oldId, ICConfigurationDescription cfgd) {
   if (isConfigurationAlreadySaved(p, cfgd)) return true;
   Map<String, IAConfiguration> tmpList = getTmpConfigs(p);
   String newId = cfgd.getId();
   // Don't bother if the new configuration is already on the tmp list
   IAConfiguration cfg = tmpList.get(newId);
   if (cfg != null) return false;
   // Otherwise, try and find the old id to copy the configuration from
   // or punt if not found
   IAConfiguration oldCfg = null;
   Map<String, IAConfiguration> savedList = getSavedConfigs(p);
   if (savedList != null) oldCfg = savedList.get(oldId);
   if (oldCfg != null) {
     IAConfiguration newCfg = oldCfg.copy(cfgd.getId());
     tmpList.put(cfgd.getId(), newCfg);
     // Check to see if the new configuration is already stored as part of the project description.
     // If yes, it should already be saved.  This can occur if the configuration was added as part
     // of
     // another CDT Property page and the Autotools Property page was never opened.
     if (CoreModel.getDefault().getProjectDescription(p).getConfigurationById(newId) != null) {
       addConfiguration(p, newCfg);
       return true;
     }
   }
   return false;
 }
 public synchronized IAConfiguration getConfiguration(IProject p, String cfgId, boolean persist) {
   IAConfiguration cfg = findCfg(p, cfgId);
   if (cfg == null) {
     cfg = createDefaultConfiguration(cfgId);
     if (persist) {
       addConfiguration(p, cfg);
     }
   } else {
     if (!persist) {
       cfg = cfg.copy();
     }
   }
   return cfg;
 }