Subject: bug#48117: 28.0.50; Update of loaddefs.el during normal build is unreliable

From: Gregory Heytings <[email-masked]>
Date: Fri, 30 Apr 2021 19:20:08 +0000

>> Note that, as I said, this won't work without keeping ldefs-boot.el up 
>> to date.
>
> We (read: Glenn) already do.  You can see that in "git log".
>

I think this should preferably be automated.  The current ldefs-boot.el 
file in the trunk is 25 days old, running admin/update_autogen -L adds 247 
lines and modifies 100 lines.