[Lazarus] Can't find unit Interfaces on launchpad's build farm - is Lazarus/FPC broken in Ubuntu 12.04?

[Bernd]

2012/9/23 Mattias Gaertner <nc-gaertnma at netcologne.de>:

> How did you install Lazarus?

the build server did it (probably with apt-get) satisfying my two
build-dependencies:
lazarus lcl-utils

so theoretically the equivalent on the command line would have been:
sudo apt-get install lazarus lcl-utils