[debbugs-tracker] bug#33380: closed (27.0.50; Emacs hangs in current-time-zone)

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Your message dated Wed, 14 Nov 2018 14:26:50 -0800
with message-id <address@hidden>
and subject line Re: bug#33380: 27.0.50; Emacs hangs in current-time-zone
has caused the debbugs.gnu.org bug report #33380,
regarding 27.0.50; Emacs hangs in current-time-zone
to be marked as done.

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33380: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=33380
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> --- Begin Message ---
>
>
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> Subject: 
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> 27.0.50; Emacs hangs in current-time-zone
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>
>
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> Date: 
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> Wed, 14 Nov 2018 09:22:24 -0500
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> In GNU Emacs 27.0.50 (build 1, x86_64-apple-darwin17.7.0, NS
> appkit-1561.60 Version 10.13.6 (Build 17G3025))
>  of 2018-11-12 built on C-6111-SSTEINGO
> Repository revision: db711687c3983eda60275dadcc4dc75119e6c0ae
> Repository branch: master
> Windowing system distributor 'Apple', version 10.3.1561
> System Description:  Mac OS X 10.13.6
>
> When I hit `d` in Calendar, Emacs hangs, and debug-on-quit reveals the
> backtrace:
>
> Debugger entered--Lisp error: (quit)
>   current-time-zone(-242240400)
>   calendar-next-time-zone-transition((-3852 1873))
>   calendar-dst-find-data((-3852 1873))
>   calendar-dst-find-startend(1962)
>   calendar-dst-starts(1962)
>   eval((calendar-dst-starts year))
>   dst-in-effect(716571.289583333)
>   dst-adjust-time((11 27 1962) 6.94794218501546)
>   solar-sunrise-sunset((11 27 1962))
>   solar-sunrise-sunset-string((11 27 1962))
>   diary-sunrise-sunset()
>   eval((diary-sunrise-sunset))
>   diary-sexp-entry("(diary-sunrise-sunset)" "" (11 27 1962))
>   diary-list-sexp-entries((11 27 1962))
>   diary-list-entries((11 27 1962) 1)
>   diary-view-entries(1)
>   funcall-interactively(diary-view-entries 1)
>   call-interactively(diary-view-entries nil nil)
>   command-execute(diary-view-entries)
>
> this does not happen with "current" dates.
>
>
> -- 
> Sam Steingold <http://sds.podval.org> <http://www.childpsy.net>
> <http://steingoldpsychology.com>
>
>
>
> --- End Message ---

--- Begin Message --- Subject: Re: bug#33380: 27.0.50; Emacs hangs in current-time-zone Date: Wed, 14 Nov 2018 14:26:50 -0800 User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.0

On 11/14/18 10:49 AM, Glenn Morris wrote:

A smaller example is to evaluate: (calendar-dst-starts 1962)

Thanks for the smaller example. I installed the attached patch into master to fix that and am optimistically marking this bug as done. And thanks, Sam, for reporting the original problem.

0001-Fix-probing-for-pre-1970-DST.patch
Description: Text Data

--- End Message ---