[FFmpeg-devel] [PATCH] List enabled code in configure output

Ramiro Polla ramiro
Thu Nov 1 20:49:24 CET 2007

Ramiro Polla wrote:
> Rich Felker wrote:
>> On Wed, Sep 26, 2007 at 04:39:26PM -0300, Ramiro Polla wrote:
>>>>>> The ${space:0:$length}
>>>>> Replaced with a while loop that adds one space at a time.
>>>> I'm not having anything of the kind.  What's this patch good for
>>>> anyway?
>>> As has already been discussed before in [1], some people would like for 
>>> configure to print out which codecs and formats have been selected. I 
>>> would like to have this feature, and Michael said he likes it too.
>>> I didn't like the fact that it would output one really long unreadable 
>>> line. I also wouldn't like if it was one entry per line, since that 
>>> would make configure's output really, really long. I suggest something 
>>> in between: using show_list, print the output tabulated with 8 spaces. 
>>> But I didn't find a way to make the code portable and elegant at the 
>>> same time.
>>> show_list_1.diff makes show_list much faster, so I think it should be 
>>> applied independent of the rest of this discussion.
>>> These are 3 possibilities of implementing listing the selected output:
>>> show_list_2.diff prints one entry per line (long output).
>>> show_list_3.diff prints them sequentially (long lines).
>>> And another option is tabulating the output. Would you be against this 
>>> kind of output, even if we managed to get the source code to be portable 
>>> and clean?
>> This kind of thing can probably be done easily with sed...
> I failed to find a simple way to do it that doesn't involve a loop, 
> either in the script or in the sed command through labels, or a function 
> that returns one up to 8 spaces, which is also ugly.
> Of course, there's no point in me trying further if the tabulated output 
> is not accepted, although I find it nicer to look at.
> Mans, we can't (always) guess your preference unless you speak up. 
> What's your opinion?
> 1. All entries in same line
> 2. One per line
> 3. Tabulated output
> 4. I'll cook up something I like better later
> 5. None of the above and no selected features will ever be printed out

I'll apply show_list_1.diff tomorrow if no one objects.

I'll also apply show_list_3.diff (option 1) tomorrow if no one objects.

Ramiro Polla

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