anchor.diff:      libsasl2-modules-otp \
       libsasl2-modules-sql \
       openssl \
  -    slapd=${SLAPD_PACKAGE_VERSION} \
  -    slapd-contrib \
  +    slapd=${OPENLDAP_INSTALL_VERSION}\* \
  +    slapd-contrib=${OPENLDAP_INSTALL_VERSION}\* \
       krb5-kdc-ldap \
       && curl -o pqchecker.deb -SL http://www.meddeb.net/pub/pqchecker/deb/8/pqchecker_${PQCHECKER_VERSION}_amd64.deb \
       && echo "${PQCHECKER_MD5} *pqchecker.deb" | md5sum -c - \
  
positive.code: # sources: https://github.com/osixia/docker-light-baseimage
  FROM osixia/light-baseimage:1.3.2
  
  ARG SLAPD_PACKAGE_VERSION=2.4.57+dfsg-1~bpo10+1
  
  ARG LDAP_OPENLDAP_GID
  ARG LDAP_OPENLDAP_UID
  
negative.code:     && LC_ALL=C DEBIAN_FRONTEND=noninteractive apt-get -t buster-backports install -y --no-install-recommends \
      ca-certificates \
      curl \
      ldap-utils=${OPENLDAP_INSTALL_VERSION}\* \
      libsasl2-modules \
      libsasl2-modules-db \
      libsasl2-modules-gssapi-mit \
  