link to first failed build:
https://jenkins.isc.org/view/BIND/job/bind9-master-openbsd57-amd64/553/console

openssl_link.c: In function 'dst__openssl_init':
openssl_link.c:217: error: '_set_thread_id' undeclared (first use in this function)
openssl_link.c:217: error: (Each undeclared identifier is reported only once
openssl_link.c:217: error: for each function it appears in.)
*** Error 1 in lib/dns (Makefile:325 'openssl_link.o')