https://bugs.openldap.org/show_bug.cgi?id=9572
--- Comment #1 from Howard Chu hyc@openldap.org --- (In reply to Xin Li from comment #0)
In #9521, OpenLDAP would be using OpenSSL 1.1 TLSv1.3 API (SSL_CTX_set_ciphersuites and SSL_set_ciphersuites) and is no longer compatible with LibreSSL.
Reported by a FreeBSD user at https://bugs.freebsd.org/256433 .
Note that the changes for ITS#9521 are specifically #ifdef'd for OpenSSL version 1.1.1 or greater. If LibreSSL isn't working here it's because it's lying about its OpenSSL version. Tell them to fix their stuff.