gcrypt - Use message digest functions from dev-libs/libgcrypt instead of sudo's
ldap - Add LDAP support (Lightweight Directory Access Protocol)
libressl - Use message digest functions from dev-libs/libressl instead of sudo's
nls - Add Native Language Support (using gettext - GNU locale utilities)
offensive - Let sudo print insults when the user types the wrong password
pam - Add support for PAM (Pluggable Authentication Modules) - DANGEROUS to arbitrarily flip
sasl - Add support for the Simple Authentication and Security Layer
secure-path - Replace PATH variable with compile time secure paths
selinux - !!internal use only!! Security Enhanced Linux support, this must be set by the selinux profile or breakage will occur
sendmail - Allow sudo to send emails with sendmail
skey - Enable S/Key (Single use password) authentication support
sssd - Add System Security Services Daemon support
system-digest - Use message digest functions from dev-libs/libgcrypt, dev-libs/libressl or dev-libs/openssl instead of sudo's internal SHA2 implementation
