clear -f
addpath (fullfile (fileparts (canonicalize_file_name (mfilename ("fullpath"))), "demos"));
addpath (fullfile (fileparts (canonicalize_file_name (mfilename ("fullpath"))), "tests"));
setenv ("TZDATA", fullfile (fileparts (canonicalize_file_name (mfilename ("fullpath"))), "tzdata"));
warning ("off", "Octave:data-file-in-path")
