From: Ken Brown <kbrown@cornell.edu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 23640@debbugs.gnu.org
Subject: bug#23640: 25.1.50; Getting rid of compiler warnings
Date: Sat, 28 May 2016 17:47:53 -0400 [thread overview]
Message-ID: <13ba9f48-d461-5e4d-7017-20b3aec2b98c@cornell.edu> (raw)
In-Reply-To: <83mvnaxb6u.fsf@gnu.org>
On 5/28/2016 2:57 PM, Eli Zaretskii wrote:
>> From: Ken Brown <kbrown@cornell.edu>
>> Date: Sat, 28 May 2016 14:40:36 -0400
>>
>> Building master on Cygwin with gcc-5.3.0 yields many "control reaches
>> end of non-void function" warnings. What's the best way to get rid of
>> these? Should I add return statements that will never be reached, like
>> this?
>>
>> --- a/src/frame.c
>> +++ b/src/frame.c
>> @@ -263,6 +263,8 @@ See also `frame-live-p'. */)
>> return Qns;
>> default:
>> emacs_abort ();
>> + /* Pacify compiler. */
>> + return Qnil;
>> }
>> }
>
> emacs_abort is declared with _Noreturn, so how come GCC doesn't shut
> up about "unreachable" code?
It looks like the problem is the definition of _Noreturn as a macro in
config.h. I'll have to figure out what's going on.
Ken
next prev parent reply other threads:[~2016-05-28 21:47 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-28 18:40 bug#23640: 25.1.50; Getting rid of compiler warnings Ken Brown
2016-05-28 18:57 ` Eli Zaretskii
2016-05-28 21:47 ` Ken Brown [this message]
2016-05-29 22:43 ` Ken Brown
2016-05-30 11:39 ` Ken Brown
2016-05-30 14:41 ` Ken Brown
2016-05-30 16:20 ` Ken Brown
2016-05-30 23:29 ` Paul Eggert
2016-05-31 0:11 ` Ken Brown
2016-05-31 8:03 ` Andy Moreton
2016-05-31 22:22 ` Richard Stallman
2016-05-31 0:15 ` Paul Eggert
2016-06-01 8:35 ` Paul Eggert
2016-06-01 20:37 ` Richard Stallman
2016-06-01 21:10 ` Paul Eggert
2016-06-02 12:05 ` Andy Moreton
2016-06-03 3:35 ` Richard Stallman
2016-06-06 14:45 ` Paul Eggert
2016-06-07 6:19 ` Richard Stallman
2016-06-07 7:15 ` Paul Eggert
2016-06-08 4:00 ` Richard Stallman
2016-06-08 7:18 ` Paul Eggert
2016-06-08 17:06 ` Richard Stallman
2016-06-01 8:55 ` Paul Eggert
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