DMXQueryExtension    (3x)  - determine if DMX is available
Mail::SpamAssassin::Message::Node (3)  - decode, render, and make available MIME message parts
SSL_CTX_set_cipher_list (3ssl)  - choose list of available SSL_CIPHERs
SSL_CTX_set_cipher_list [SSL_set_cipher_list] (3ssl)  - choose list of available SSL_CIPHERs
SSL_get_cipher_list  (3ssl)  - get list of available SSL_CIPHERs
SSL_get_cipher_list [SSL_get_ciphers] (3ssl)  - get list of available SSL_CIPHERs
SSL_get_ciphers      (3ssl)  - get list of available SSL_CIPHERs
SSL_get_ciphers [SSL_get_cipher_list] (3ssl)  - get list of available SSL_CIPHERs
SSL_set_cipher_list  (3ssl)  - choose list of available SSL_CIPHERs
SSL_set_cipher_list [SSL_CTX_set_cipher_list] (3ssl)  - choose list of available SSL_CIPHERs
XFreeDeviceList [XListInputDevices] (3x)  - list available input devices
XListInputDevices    (3x)  - list available input devices
XpRehashPrinterList  (3x)  - Recomputes the list of available printers
curl_multi_perform   (3)  - reads/writes available data from each easy handle
fc-list              (1)  - list available fonts
lpinfo               (8)  - show available devices or drivers
mq_notify            (3p)  - notify process that a message is available (REALTIME)
numa [numa_available] (3)  - NUMA policy library
signal               (7)  - list of available signals
umad_get_cas_names   (3)  - get list of available InfiniBand device names
usbmodules           (8)  - List kernel driver modules available for a plugged in USB device