Re: [PATCH 1/2] daemon: Fix '--version'.

[ludo@gnu.org (Ludovic Courtès)]

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’.