Hello,
Given that CMake errs when you try to some sub-directory twice using
add_subdirectory() I presume there is some variable that stores a list
of the directories that were added to the build sofar. But I can't find
the name of the variable. Does it exists (well... better would be: is it
visible to users) and if so, what is it called?
Yours sinceryl,
Jakob
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