Best Way to Compare Informix Databases

What is the best way to compare two informix databases? My current approach is to run dbschema on both databases, then diff the output. However, since diff only does a line-by-line file comparison, one difference between the databases causes a domino effect in the line-by-line comparison of the schema output. Does informix have a built-in tool that would provide a better way? Any help would be appreciated, Tim Owens