<p>My development environment is running in JDK1.6, and I need to compile some classes so they are compatible with a client running JDK1.5.  How would I do this with the 'javac' ant target?</p>

Command line : javac -target 1.5 sourcefiles
Ant:
```
< javac srcdir="${src} destdir="${build}" target="1.5" />
```