How to use Mono dllname.dll.config with Unity?

What is working

have a Mono project (independent of Unity) using Cloo. Cloo uses native OpenCL.dll. In order to have it working in other platforms, I added the following file to my project: Cloo.dll.config, with contents:

 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <dllmap os="linux" dll="OpenCL.dll" target="libOpenCL.so"/>
   <dllmap os="osx" dll="OpenCL.dll" target="/System/Library/Frameworks/OpenCL.framework/OpenCL"/>
 </configuration>

That remaps the dll to the appropriate file both on Linux and on MacOSX (10.7).

What is the problem

ow I need to use Cloo.dll in a Unity project. I tried to include the Cloo.dll.config in many ways, but cannot have it working in any proper way. The project works perfectly on windows, both in "Play" mode and in a UnityEditor script.

Questions

hat brings me down to my questions:

1. Do I need the UnityPro Plugin feature for this to work with Unity?

2. How can I have that remapping working on MacOS Standalone player?

3. Is there anything different I need to do to have it working on UnityEditor in MacOS?

As a note, I do NOT include OpenCL.dll in the project, nor libOpenCL.so. I cannot do so, since they are available through the runtime installed in the system, and many times dependant on grphics card model and driver version.