xdg-open in Emacs in Termux (Android)

[Michael Brand]

Hi all

With Emacs in Termux M-: (browse-url-xdg-open "http://gnu.org";) opens
the URL in an Android browser. But M-: (browse-url-default-browser
"http://gnu.org";) errors with "No usable browser found". This is
because even the most recent browse-url-can-use-xdg-open

#+begin_src emacs-lisp :eval no
  (defun browse-url-can-use-xdg-open ()
    "[...]"
    (and (or (getenv "DISPLAY") (getenv "WAYLAND_DISPLAY"))
         (executable-find "xdg-open")))
#+end_src

returns nil because none of the environment variables is set.

Should browse-url-can-use-xdg-open be changed to detect the situation of Termux?

Michael