Rebuild the .mo file if the .po file is newer.
tree0fbc8d80d5d235c29c63e03f48c8bbbe3d04700e
-rw-r--r-- 69 .bzrignore
drwxr-xr-x - Mailman
-rw-r--r-- 6739 README.txt
drwxr-xr-x - bin
drwxr-xr-x - contrib
drwxr-xr-x - cron
drwxr-xr-x - docs
-rw-r--r-- 8546 ez_setup.py
drwxr-xr-x - scripts
-rw-r--r-- 3149 setup.py
drwxr-xr-x - tests