[CMake] [Feature-request] CMake Error: Attempt to add link target foo of type: MODULE_LIBRARY

[Mathieu Malaterre]

Hello,

  Is this possible to change the error into a warning on system where
there is no difference between module and shared library ? If
CMAKE_MODULE_EXISTS is not set, I think this is resonnable to allow
people to link to module, right ?

Thanks for comments

-- 
Mathieu