Hey garaphone-
You marked your post as using the master branch which contains the most recent code changes to the engine and does not get as much testing as the other branches. Because of this it is usually more likely to have issues that have not been caught yet. Does the same error message occur when running the make step using other branches (such as the release branch which receives the most testing)?
I tried building the master branch myself today and did not receive this error when running make. It’s possible that what was causing this has been corrected, are you still seeing this when building?
Cheers