Ubuntu 14.04 LTS with sipsak from default repository
sipsak -V
sipsak 0.9.6 by Nils Ohlmeier
Copyright (C) 2002-2004 FhG Fokus
Copyright (C) 2004-2005 Nils Ohlmeier
compiled with DEFAULT_TIMEOUT=500, FQDN_SIZE=65, RAW_SUPPORT, LONG_OPTS, GNUTLS_MD5, SRV_SUPPORT(RULI), STR_CASE_INSENSITIVE, CMP_CASE_INSENSITIVE
sipsak --nagios-code -U -i --expires 300 --contact sip:checksip@server --password secret --sip-uri sip:checksip@server.tld.de:5060
On syslog the message appears:
sipsak: Libgcrypt warning: missing initialization - please fix the application
dpkg -l | grep -i libgcrypt
ii libgcrypt11:amd64 1.5.3-2ubuntu4.5 amd64 LGPL Crypto library - runtime library