The application and the plugins depend on the following open source software and libraries, so make sure you install the related development versions before attempting a compilation:

• GLib: http://library.gnome.org/devel/glib/
• pkg-config: http://www.freedesktop.org/wiki/Software/pkg-config/
• gengetopt: http://www.gnu.org/software/gengetopt/ (command line)
• Jansson: http://www.digip.org/jansson/ (JSON)
• libconfig: https://hyperrealm.github.io/libconfig/ (configuration files)
• libnice: http://nice.freedesktop.org/wiki/ (ICE/STUN/TURN, at least v0.1.16 suggested, master recommended)
• OpenSSL: http://www.openssl.org/ (DTLS, at least v1.0.1e)
• libsrtp: https://github.com/cisco/libsrtp (SRTP, at least v1.5 suggested)
• usrsctp: http://code.google.com/p/sctp-refimpl/ (optional, Data Channels)
• libmicrohttpd: http://www.gnu.org/software/libmicrohttpd/ (optional, v0.9.59, Web server)
• libwebsockets: https://libwebsockets.org/ (optional, WebSockets)
• rabbitmq-c: https://github.com/alanxz/rabbitmq-c (optional, v1.0.4, RabbitMQ)
• paho.mqtt.c: https://eclipse.org/paho/clients/c (optional, v1.1.0 for MQTT v3.1 & v3.1.1 or v1.3.0 for MQTT v5)
• nanomsg: https://nanomsg.org/ (optional, Nanomsg)
• Sofia-SIP: http://sofia-sip.sourceforge.net/ (optional, only needed for the SIP plugin)
• libopus: http://opus-codec.org/ (optional, only needed for the bridge plugin)
• libogg: http://xiph.org/ogg/ (optional, only needed for the voicemail plugin)
• libcurl: https://curl.haxx.se/libcurl/ (optional, only needed for the TURN REST API, RTSP support in the Streaming plugin and the sample Event Handler plugin)
• zlib: https://zlib.net/ (gzip compression utility)
• Lua: https://www.lua.org/download.html (optional, only needed for the Lua plugin)
• npm: https://docs.npmjs.com/ (optional, used during build for generating JavaScript modules)