[CMake] List all "include_directories" for a given project or target

[Michael Jackson]

Is there a command or variable or a code snippet from someone that 
essentially has a list of all the "include_directories" that have been 
used/created in a given project? Or can I get a list of all the 
targets(created and imported) and then get the list of 
"include_directories" from those targets?

I am messing about with the "VSCode.app" on OS X and their code 
completion extension. For this to work one needs to get a list of all 
the include directories possible so that clang knows where to look for 
the headers.

Wasn't there a cmake command that would dump all the compile commands to 
a file or something?

Thanks

-- 
Michael A. Jackson
BlueQuartz Software, LLC
[e]: mike.jackson at bluequartz.net