Let's assume that we have two identical fonts
```
/my/directory/foo.ttf
/usr/local/share/fonts/foo.ttf
```
which differ (from FontConfig's point of view) only in the font
revision. The directory of the former font has been added using
`FcConfigAppFontAddDir`, after loading the default configuration
files.
Which one of the font gets found first? How can I influence that?
Werner
