Before building, you need to decide on the source of the source texts, FTP/HTTP-server or SVN-repository, and the branch of OpenSCADA that you will build. Since the LTS branch is automatically built for many Linux distributions, is rarely updated and its version changes with the release of a new LTS, this guide will consider the assembly of the working branch (Work), which, in turn, is automatically compiled for a limited range of Linux distributions, often changes and its address always the same, unless you count the revision number. As a rule, the building of the LTS branch is carried out in the same way, and in the instructions "Work" should be replaced with the LTS version and the name of the source text package should be changed. In general, the names of packages and folders should be treated carefully, because they can differ from version to version!