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List:       kde-devel
Subject:    Re: KDE3 thai word break: KLibLoader --> QLibrary
From:       "Pattara Kiatisevi \(list\)" <pattara-list () mm ! co ! th>
Date:       2007-09-29 13:33:12
Message-ID: 46FE5418.9060209 () mm ! co ! th
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Thiago Macieira wrote:
> Pattara Kiatisevi (list) wrote:
>   
>> We did that. http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=444284 .
>>
>> However, without considering about distributions, wouldn't it be
>> technically better to not require libthai.la?
>>     
>
> We can only do that if we don't use libltld's library-loading methods. 
> It's them that require the .la files. And KDE 3 is based around that. So 
> it's a distro bug if they make KDE 3 stop working -- it's been working 
> for years like that.
>   

Right, maybe it's distro problem. But from the upstream point of view,
is there any particular problem or inferior technical point of using
QLibrary instead of KLibLoader?

>   
>> And for Qt4/KDE4, isn't it better to use QLibrary::resolve("thai", 0,
>> "th_brk") so that it will go for libthai.so.0
>> directly, eliminating the need to have libthai.so (which is normally in
>> development package)?
>>     
>
> What happens when libthai.so.1 gets released?
>   

When libthai.so.1 gets released, as the major lib number has changed,
some APIs might have changed in a non backward compatible way,
hence it's time to look at the Qt/KDE code to make sure that this
th_brk() function will still work in libthai.so.1, and manually change
the Qt/KDE code to load version 1.

Otherwise if we load libthai.so, when libthai.so.1 come out, it will either
continue to work or fail silently?

On one hand it is a little difficult to explain why users
need to install libthai-dev just to *use* KDE. On the other hand we
don't want to bother KDE/Qt developers too often when libthai has released
its new major version  (although I don't think that will happen often 
though).

P'Thep (libthai developer): any comment?

Btw, we are setting up a team here in Thailand to look at various 
Thai-related
problems in Qt4/KDE4 so that it will come out with good Thai support. 
Here's
the first report from us (sorry, in Thai..) that illustrates current 
status of Thai
support: http://suriyan.longdo.com/docs/kde4-qt4-investigation-200709.pdf .
Comments/advice are very welcome.

Pattara
 
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