[O] #+include: with ``adjustable'' path (separately defined, like macro expansion)

[Martin Steffen]

Hi,

I'd like to achieve something like the following (which does not work)

#+MACRO: custompath  ~/some/place/where/the/code/resides
#+include: "{{{custompath}}}src/example.code" 


Macro-expansion generally works, but not in those circumstances. I also
seens that there's the 

#+LINK: customurl

which conceptually does such macro expansion but it seems intended for
linking in stuff, not for "embedding" pieces of code.


Is there a way to achieve what I want, which I overlooked?
Thanks, Martin