2017-07-16 20:10:02 UTC
the location where the json.hpp of nlohmann-json-dev is being installed
will be /usr/include/nlohmann in the next upload, which is what upstream
defaults to and what other systems honor (see #868112).
mkvtoolnix is the only reverse dependency of nlohmann-json-dev and will
have to set the includedir accordingly. I've attached a patch which does
that (and which also works with the old nlohmann-json-dev 2.0.6 version).