[CMake] Recursively calling a macro: Is this possible in CMake?

[Robert Dailey]

Hi,

Suppose I have a macro that rougly behaves like this:

macro( foo )
  list( APPEND my_list <something> )
  if( <foo's length is less than certain number> )
    foo()
  endif()
endmacro()

How would this be processed in CMake? Obviously you couldn't inline this
macro because it's recursive. I need to do something like this to
recursively iterate target dependencies and append all of their includes to
a single, flattened list.

Thanks.
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