Eli Zaretskii <eliz@gnu.org> writes:

>> From: Alex Bennée <kernel-hacker@bennee.com>
>> Date: Thu, 30 Jan 2014 14:10:45 +0000
>> 
>> In an unrelated issue I found that I can't start src/temacs with the
>> --daemon option which works with the dumped version src/emacs.
>
> Please use "M-x report-emacs-bug RET" to report such bugs, then they
> are automatically emailed to the bug tracker address.

I raised bug #16599 and I have tracked it down to being reset by
syms_of_emacs() which is called in temacs after being set up by
--daemon. I assume the dumped src/emacs behaves differently.

The following patch works for me: