Aleksander Alekseev <aleksander(at)timescale(dot)com> writes:
> While trying to build PostgreSQL from source (master branch, 95c3a195) on a
> MacBook I discovered that `make check` fails:
This is the usual symptom of not having disabled SIP :-(.
If you don't want to do that, do "make install" before "make check".
regards, tom lane