From: ludo@gnu.org (Ludovic Courtès)
To: Alex Vong <alexvong1995@gmail.com>
Cc: guix-devel@gnu.org
Subject: Re: [PATCH 1/2] daemon: Fix '--version'.
Date: Fri, 02 Sep 2016 14:41:37 +0200 [thread overview]
Message-ID: <878tvamq2m.fsf@gnu.org> (raw)
In-Reply-To: <87d1knazeh.fsf@gmail.com> (Alex Vong's message of "Fri, 02 Sep 2016 09:00:54 +0800")
Alex Vong <alexvong1995@gmail.com> skribis:
> ludo@gnu.org (Ludovic Courtès) writes:
>
>> Alex Vong <alexvong1995@gmail.com> skribis:
>>
> [...]
>>>
>>> I think you have isolated the problem! This test case does not work for
>>> me.
>>>
>>>
>>> I get the following output after building with
>>> (g++ -O2 -flto version.cxx):
>>
>> What if you compile with ‘gcc’ (and rename to foo.c) instead of ‘g++’?
>>
>> It might be a symbol visibility problem, or name mangling issue.
>>
>> Ludo’.
>
> Hmm, I try to build with 'gcc -O2 -flto version.c' and './a.out
> --version' still fails with 'unrecognized option'. I check the symbols
> using 'nm' and they are not mangled. How should I check for the sign of
> a symbol visibility problems?
‘nm’ shows a capital T for exported symbols, and a lowercase t for
hidden/private symbols.
Maybe you should report a bug against your distro’s package and see what
they think?
Ludo’.
prev parent reply other threads:[~2016-09-02 12:41 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-24 1:34 [PATCH 1/2] daemon: Fix '--version' Alex Vong
2016-08-29 1:31 ` (ping!) " Alex Vong
2016-08-29 16:12 ` Ludovic Courtès
2016-08-30 4:29 ` Alex Vong
2016-08-31 21:13 ` Ludovic Courtès
2016-09-01 6:23 ` Alex Vong
2016-09-01 12:15 ` Ludovic Courtès
2016-09-02 1:00 ` Alex Vong
2016-09-02 12:41 ` Ludovic Courtès [this message]
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