The source files are installed in a default source directory that is separate from the work directory.
Your installation directory is referred to as <install_dir>. The default installation directory is /opt/SUNWconn/SEW.
Your binary directory is referred to as <bin_dir>. The default binary directory is /opt/SUNWconn/SEW/4.0/chorus-<family>.
Your source directory is referred to as <src_dir>. The default source directory is /opt/SUNWconn/SEW/4.0/chorus-<family>/src.
Your work directory is referred to as <work_dir>.