From mboxrd@z Thu Jan  1 00:00:00 1970
From: Kyle Meyer <kyle@kyleam.com>
Subject: Re: Arithmetic range error
Date: Thu, 07 Feb 2019 08:15:55 -0500
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To: Colin Baxter <m43cap@yandex.com>, emacs-orgmode@gnu.org

Colin Baxter <m43cap@yandex.com> writes:

> Publishing an org file today, the html output looks ok but I get the
> compilation error:
>
> Arithmetic range error: "floor", 1549541220.7500212
>
> I get the error with org-version 9.2.1 (release_9.2.1-200-g18b85a)
> but not with org-version 8.2.10.
>
> Looking at 'org-publish-cache-ctime-of-src' in the file `ox-publish.el',
> its not obvious to me where the error is coming from. Ditto after
> looking in NEWS and the git commit logs.
>
> Can anyone help?

This looks to be due to the backport of Emacs's 662bee7d7,
specifically:

--8<---------------cut here---------------start------------->8---
* lisp/ox-publish.el (org-publish-cache-ctime-of-src):
Prefer float-time to doing time arithmetic by hand.
[...]
@@ -1364,8 +1366,7 @@ (defun org-publish-cache-ctime-of-src (file)
 	       (expand-file-name (or (file-symlink-p file) file)
 				 (file-name-directory file)))))
     (if (not attr) (error "No such file: \"%s\"" file)
-      (+ (ash (car (nth 5 attr)) 16)
-	 (cadr (nth 5 attr))))))
+      (floor (float-time (file-attribute-modification-time attr))))))
--8<---------------cut here---------------end--------------->8---

I won't have a chance to investigate further though until (my EST)
tonight.