bug#56746: 29.0.50; Probable bug with native compilation

[Eli Zaretskii <eliz@gnu.org>]

> From: Kenneth Stuart <kstuart@hotmail.co.uk>
> Date: Sun, 24 Jul 2022 15:16:42 +0100
> 
> Note that I'm not using 'emacs -Q' as a later version of Org is
> required, however the issue strongly appears to be with emacs native
> compilation as it does not occur from a build without native
> compilation.
> 
> org-mode commit: 127e7fee4959ceb33dba2e442b72189f3c25eaa1
> 
> Steps to reproduce:
> 
> 1. Create an org-mode buffer and insert a clocktable dynamic block with a
> `tstart` option.
> 
> #+BEGIN: clocktable :scope file :maxlevel 2 :tstart "2020-01-01"
> #+END:
> 
> 2. Evaluate the clocktable (C-c C-c on the #+BEGIN line)
> 
> Result: `Invalid function: org-encode-time`
> Expected: No error, clocktable updated successfully
> 
> Notes:
> 
> References:
> https://mail.gnu.org/archive/html/emacs-orgmode/2022-07/msg00738.html
> https://mail.gnu.org/archive/html/emacs-orgmode/2022-07/msg00696.html
> 
> In early April Org introduced a new macro `org-encode-time` which is
> used in the `let` special form of function `org-matcher-time`
> 
> https://git.savannah.gnu.org/cgit/emacs/org-mode.git/tree/lisp/org-macs.el#n1395
> https://git.savannah.gnu.org/cgit/emacs/org-mode.git/tree/lisp/org-macs.el#n1463
> 
> Function `org-matcher-time` is used by the clocktable dynamic block
> options, for example adding a `tstart` option and evaluation the
> clocktable emits the error "Invalid function: org-encode-time".
> 
> If then going to the source for `org-matcher-time` and evaluating the
> defun, the clocktable can then be evaluated without error.
> 
> As previously stated this issue does not occur when not using native
> compilation.

Andrea, could you please look into this bug report?  It sounds like
'defmacro' in a conditional code is mis-compiled somehow?