As previously stated, the user needs to create a working area in which to make his changes. This is called a test release and is created with the SRT command newrel. This command need only be executed once per test release directory.
For example:
cd ~foo.This created the test directory and populated it with the main GNUmakefile and empty sub-directories include, lib, and bin, etc. It did not create the pkgA or pkgB directories. The release number <base-release> is written to a file .current, used by GNUmakefile to determine which production release to use.