[Etoys] Ogg Vorbis and Speex CODEC for Squeak eToys

Bert Freudenberg bert at freudenbergs.de
Wed Apr 4 09:28:18 EDT 2007


On Apr 4, 2007, at 15:13 , Takashi Yamamiya wrote:

> Bert,
>
>> you need to make sure the VM compiles even without the headers and  
>> libraries present. We need to have configure-time checks for all  
>> needed headers and libraries, and disable the plugin if those are  
>> not present. I see you check for the headers, but not for the  
>> libraries. There is an AC_PLUGIN_CHECK_LIB macro for this, see doc/ 
>> HowToBuildFromSource.txt
>
> OK. I added a couple of AC_CHECK_LIBs because using both  
> AC_TRY_COMPILE
> and AC_PLUGIN_CHECK_LIB caused an error in disablePlugin.c. This is  
> somewhat
> ugly though, it seems to work well. I'm completely novice about the
> syntax of acinclude.m4, so please check it.

Yeah, I'm not quite sure how to do it better than that ... I think  
it's good enough for now. Maybe Ian will refine it when moving to the  
trunk :)

>> The proper way to make sure ogg or speex is installed would be in  
>> sugar-jhbuild sanitycheck.
>
> I'll take a look at that.

I discussed this with Marco P. G. on IRC. He had an issue with adding  
this as a prerequisite for each Sugar developer. To which I replied  
that IMO every Sugar developer should be able to rely on certain  
media libraries. Which he found okay for ogg vorbis, but maybe not  
for speex. Speex already is on the OLPC, but that may be by accident.  
There is no definitive list of what the platform will support. Worse,  
there is no such list at all. Maybe a post to Sugar list would be in  
order ...

- Bert -





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