On a 64 bit system with multilib support enabled, sys-auth/nss-pam-ldapd doesn't build 32 bit libraries. When using ldap authentication, 32 bit apps like acroread needs a 32 bit version of libnss_ldap.so.2. Reproducible: Always
Created attachment 403134 [details, diff] patch to version 0.8.14-r1, that enables multilib support This ebuild works on my system and successfully builds a 32 bit version. Have a look at: https://github.com/oleid/ebuilds/tree/master/sys-auth/nss-pam-ldapd for the full ebuild.
fixed in r2