Hi Guix, Our Org Mode package (emacs-org) seems to be broken in a funny way. Here's how to reproduce this bug (on commit dac7928):
1) Install ‘emacs’ and ‘emacs-org’. 2) Start Emacs and work around https://debbugs.gnu.org/38399 by adding the directory containing org to the front of ‘load-path’: --8<---------------cut here---------------start------------->8--- (push "/path/to/org-9.2.6" load-path) --8<---------------cut here---------------end--------------->8--- 3) Open a new org file: --8<---------------cut here---------------start------------->8--- C-x C-f foo.org RET --8<---------------cut here---------------end--------------->8--- 4) Enter the following text into the buffer: --8<---------------cut here---------------start------------->8--- #+STARTUP: indent --8<---------------cut here---------------end--------------->8--- 5) Verify you're running Org Mode version 9.2.6 by running: --8<---------------cut here---------------start------------->8--- M-x org-version RET --8<---------------cut here---------------end--------------->8--- 6) Here comes the fun part: Hit C-c C-c. This will produce the following error message: --8<---------------cut here---------------start------------->8--- Symbol’s function definition is void: org-outline-overlay-data --8<---------------cut here---------------end--------------->8--- 7) Now reload Org from source (instead of the .elc files): --8<---------------cut here---------------start------------->8--- C-u C-c C-x ! --8<---------------cut here---------------end--------------->8--- 6) Repeat step 6. This time it succeeds! --8<---------------cut here---------------start------------->8--- Local setup has been refreshed --8<---------------cut here---------------end--------------->8--- The function ‘org-outline-overlay-data’ isn't defined anywhere in the org-9.2.6 source, but it is defined in the org bundled with Emacs. Because of this I suspect that the new emacs-build-system generates a weird chimera containing parts of both org-9.2.6 and org-9.1.9. To my untrained eye this looks like it’s probably a consequence of the aforementioned bug #38399. So I'd expect this issue to disappear as soon as that one is fixed. Regards, Diego