[CMake] Acces macro/functions to subfolders

[Olivier Pierard]

Dear all,

In order to be able to use a macro/function from several sub-folders, I
would like to define it only once in the main CMakeLists.txt.  However,
after some basic tests, It seems impossible to call this macro/function
from subfolders.  Is is possible to do it ?

By the way, what's the basic difference between macro/function in cmake
?  Related to preprocessing like in C/C++ ?  What's the advantage of
distinguish them here ?

Thanks for your help,

Olivier

-- 
Olivier Pierard

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