The GANTT Emacs lisp code can either be placed in the buffer with the

GANTT chart table or it can be installed in the [[http://orgmode.org/manual/Library-of-Babel.html#Library-of-Babel][Library of Babel]].

Installing local code in the Library of Babel is best accomplished by

establishing one or more Org-mode files for this purpose and keeping

them in a place that won't be overwritten when Org-mode is updated.

For each of these local files, place a line like the following in

=.emacs= to make the source code blocks accessible to the Library:

#+source: load-local-lob

#+begin_src emacs-lisp :exports code

  (org-babel-lob-ingest "~/org/local-lob.org")

#+end_src