For reference I managed to get rid of the note completely by adding
SystemRequirements: C++17
(to the description file)
Based on this page it suggests that it is unnecessary to modify the Makevars file, although I haven’t tested this.
For reference I managed to get rid of the note completely by adding
SystemRequirements: C++17
(to the description file)
Based on this page it suggests that it is unnecessary to modify the Makevars file, although I haven’t tested this.