Variable: org-babel-tangle-use-relative-file-links
org-babel-tangle-use-relative-file-links is a customizable variable
defined in ob-tangle.el.gz.
Value
t
Documentation
Use relative path names in links from tangled source back the Org file.
Source Code
;; Defined in /usr/src/emacs/lisp/org/ob-tangle.el.gz
(defcustom org-babel-tangle-use-relative-file-links t
"Use relative path names in links from tangled source back the Org file."
:group 'org-babel-tangle
:type 'boolean)