RPI compiling Icecast with support for openssl

In the Raspbian repositories, the Icecast2 package does NOT support encrypted connections via openssl. If you try to use the ssl tags in the /etc/icecast2/icecast.xml configuration file, Icecast will fail to start. You'll see something like this in /var/log/icecast2/error.log:

Configuring centova SSL for https

Configuring SSL

Centova Cast fully supports both HTTPS (secure SSL) and HTTP (plaintext non-SSL) connections on its web interface.
The web interface automatically detects which protocol (HTTP or HTTPS) the browser is using and responds appropriately; as such, both protocols are supported on a single port. For example, you could access a Centova Cast installation at cast.example.com using either of the following URLs:

http://cast.example.com:2199   (non-SSL)
https://cast.example.com:2199  (SSL)

SSL is enabled by default, so either the http or https URL can be used out-of-the-box.

HTTPS es requisito en sitios Web desde Enero del 2017

HTTPS en Google

El protocolo HTTPS te permite conectarte de forma segura a un sitio web a través de un navegador o de una aplicación. El HTTPS es una de las medidas de seguridad en la navegación, algo importante cuando inicias sesión en el sitio web de tu banco o introduces los datos de tu tarjeta de crédito en una tienda online. El HTTPS se basa en el cifrado (SSL o TLS) para proteger la información. En estas