retName = (char *)PL_strdup(fs->GetCString());
retName = (char *)nsCRT::strdup(fs->GetCString());
GetOSTempFile(const char *name){char  *retName;   nsFileSpec  *fs = new nsFileSpec();  if (!fs)    return NULL;    fs->MakeUnique(name);  retName = (char *)PL_strdup(fs->GetCString());  delete fs;  return retName;}