My lawyer would only be able to interpret it as he saw it, their lawyer knows exactly what they imply and state with the license.
So, as far as I'm concerned, BRL needs to clarify it.
Also, I would argue that while your source code is not based in whole or in part on the code in Brl.mod, the software you would create is due to the source code from Brl.mod being compiled and then linked to your application, thus making the software based in part on Brl.mod source code -- this is assuming you haven't decided to leave out all of Brl.mod, which would just be plain insane.
So, as far as I'm concerned, BRL needs to clarify it.
Also, I would argue that while your source code is not based in whole or in part on the code in Brl.mod, the software you would create is due to the source code from Brl.mod being compiled and then linked to your application, thus making the software based in part on Brl.mod source code -- this is assuming you haven't decided to leave out all of Brl.mod, which would just be plain insane.