There seems to be related build failure in osmo-sgsn which I've fixed in https://gerrit.osmocom.org/#/c/4410/
I'm not sure how to fix failure in osmo-pcu or if it's related at all: tests fail with
ERROR: osmo_log_info == NULL! You must call log_init() before using logging! Assert failed osmo_log_info logging.c:188
which was added several months ago. Any ideas?