[CMake] Release and Debug build linking

[Lee Butler]

So if this is the case, how does one "write correctly"  the find/config 
module so that both debug and release libraries are found?  I've got a 
library I depend on whose maintainer may not have built the best Find 
module in the world.  I've looked at 
https://cmake.org/Wiki/CMake/Tutorials/How_to_create_a_ProjectConfig.cmake_file 
already.  It doesn't seem to address picking up both release and debug 
libraries.  I gather from another example that the goal is to create a 
list of the form: optimized;foolib.lib;debug;foolibd.lib and provide 
that in the FOO_LIBRARY variable?