Skype

Skype is a proprietary application owned by Microsoft for instant messaging, VoIP calls, and video conversations.

Emerge
Install :

By default, Gentoo installations do not include acceptance of Skype's license, so users wanting to install will need to add the following to :

Additional USE flags for
To emerge Skype on the architecture, the system cannot be on a nomultilib profile. The following settings will need to be in or some equivalent. It's recommended to make this its own file due to how many packages need to be rebuilt. Combining them into a single  file could result in troublesome blockers later on, especially if your system has or will have multiple 32-bit programs on it.

If will be used, be sure to add   to the same file.

Using apulse
To avoid installing PulseAudio, users can install instead to emulate PulseAudio enough for Skype to work by adding   to  or an equivalent before merging.

After merging Skype with the  flag, be sure to alias it:

Auto-launching at KDE login
For some reason, KDE cannot remember Skype in the session it saves upon log out. This workaround will fool it into saving Skype in the session.

To make the Skype main window (but not chat windows) go to a desktop or any other features of Window Rules with KDE, use this regular expression under Window Title in the settings window:

Permissions
It is possible, that your user does not have privileges to access video device. Example privileges:

Add each Skype user to the video group:

Where  is substituted for the appropriate username.

Preload v4l1
For 64-bit environments: