[FFmpeg-user] How to build for static ffmpeg executable

[Reindl Harald]

Am 22.01.2016 um 01:16 schrieb Carl Eugen Hoyos:
> Reindl Harald <h.reindl <at> thelounge.net> writes:
>
>> Am 22.01.2016 um 00:59 schrieb Carl Eugen Hoyos:
>>> Reindl Harald <h.reindl <at> thelounge.net> writes:
>>>
>>>> Am 22.01.2016 um 00:41 schrieb Carl Eugen Hoyos:
>>>>> John Pompeii <lksm6-at-yahoo.com <at> ffmpeg.org> writes:
>>>>>
>>>>>> --enable-bzlib
>>>>>> --enable-iconv
>>>>>> --enable-lzma
>>>>>> --enable-zlib
>>>>>
>>>>> These options have no effect, they do not do
>>>>> what you seem to believe they do. I suggest
>>>>> you remove them
>>>>
>>>> since you always suggest to remove them *why* do
>>>> the exist at all in ./configure --help and not
>>>> only their counterpart --disable-xx?
>>>
>>> [quote]
>>>     --disable-bzlib          disable bzlib [autodetect]
>>>     --disable-zlib           disable zlib [autodetect]
>>>     --disable-iconv          disable iconv [autodetect]
>>>     --disable-lzma           disable lzma [autodetect]
>>> [/quote]
>>>
>>> ???
>>
>> typically configure scripts warn about unkonwn params
>> ffmpeg don't
>
> FFmpeg configure does not warn about unknown parameters,
> it errors out, just try "./configure --enable-foo".
>
> The parameters above are not unknown, they are useful
> for debugging but not for users, this is why they
> are not listed in configure --help (that was what
> you both denied and requested, no?).
>
> The options you use in your configure line are to
> some degree useless, to some degree they hurt
> performance for no gain and some (as --enable-zlib)
> do not work the way you (apparently) think they work:
> They simply have no effect.
> Since the configure line is often needed to
> debug issues it is very useful to remove all
> unneeded options, especially those that may produce
> issues in the future because they never had the
> meaning you think they have

when "they simple have no effect" how can they "be useful" for debugging?

which ones hurt performance for no gain?



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