[Libav-user] ff_log2_tab defined multiple times in the fmpeg 1.1 libraries, bug or feature ??

[Lars Hammarstrand]

Btw, are there any ffmpeg-devs on this list?


2013/2/13 Lars Hammarstrand <lars.hammarstrand at gmail.com>

> Apparently there are some issues with ios 64-bit osx: "
> http://stackoverflow.com/questions/2906147/what-does-the-all-load-linker-flag-do
> ":
>
> *"Important:* For 64-bit and iPhone OS applications, there is a linker
> bug that prevents -ObjC from loading objects files from static libraries
> that contain only categories and no classes. The workaround is to use the
> -all_load or -force_load flags"
>
>
>
>
>
> 2013/2/13 "René J.V. Bertin" <rjvbertin at gmail.com>
>
>>
>> On Feb 13, 2013, at 18:55, Lars Hammarstrand wrote:
>>
>> > > There's your explanation (from `man gcc`):
>> > >       -all_load
>> > >           Loads all members of static archive libraries.  See man
>> ld(1) for more information.
>> >
>> > Good eyes and a very observant mind, thank you very much ;-)
>>
>> Bah, who knows what font size I have in my mail reader? ;)
>>
>> IIRC, -all_load is mostly/only of interest when creating libraries from
>> other (static) libraries, to ensure that all functions/modules get pulled
>> in. I don't really see the interest when linking an application, unless of
>> course you want to enable plugins to dlsym variables or functions that the
>> app doesn't use itself. And I'm not sure if I find that better practice
>> than defining global variables multiple times in public libraries ;)
>>
>> R.
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>>
>
>
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