How to Install:

cd /path/to/qxmpp
patch -p0 < facebook-sasl-for-qxmpp-0.3.0.patch

How to Use:

QXmppConfiguration conf;
conf.setSASLAuthMechanism(QXmppConfiguration::SASLXFacebook);
conf.setDomain("chat.facebook.com");
conf.setFacebookAppId(YOUR_APP_ID);
conf.setFacebookAppSecret(YOUR_APP_SECRET);
conf.setFacebookAccessToken(ACCESS_TOKEN);

QXmppClient client;
client.connectToServer(conf);