Needed suggestions for creating a QT5 patched libraries package

Sat Mar 19 07:59:34 UTC 2016

Il 18/03/2016 14:31, Lisandro Damián Nicanor Pérez Meyer ha scritto:
> On Friday 18 March 2016 11:50:45 Sandro Knauß wrote:
>> Hey Giovanni,
>>
>> cool that you want to package telegram desktop.
>>
>>> However, Telegram Desktop requires a patched version of QT5; this is not
>>> a major issue, I've already created such a package, based on the latest
>>> Debian/Ubuntu sources and build nicely.
>>
>> Well a patched QT5 is a big issue. Because in debian we don't want to ship
>> to versions of QT5. So if it is comiling is not the interessing point. The
>> main question is, why they need this patch and if the patch is going to be
>> included upstream. If it is approved from qt to be entered into mainline it
>> is possible to include the patch also to older versions of QT5 packages.
>> And for me the patch looks quite big:
>> https://github.com/telegramdesktop/tdesktop/blob/master/Telegram/
>> _qtbase_5_5_1_patch.diff
>
> I have just looked over the patch. Those guys are doing it wrong: if you need
> that functionality you should push it upstream, not patch it like that.
>
> I'm afraid that as long as your upstream does that kind of weird things it
> will not be possible to have their app in Debian.
>

I am well aware of that... In fact, I'll try to work on this in a 
personal PPA on Launchpad.
I'll also try to open an issue in the official bugtracker.
I hope they will change their approach and this gets in Debian 
officially in the future...!

So, from your suggestions, I just have to make this installation work 
alongside the official one?
So, just installing in "different-from-usual" folders (to avoid 
conflicts) and tweak the packages dependencies?

As my problem is that I've already some packaged stuff:
https://launchpad.net/~itachi-san/+archive/ubuntu/telegramdesktop/+packages
You can see the "qtbase-opensource-src-patched" package which is the 
patched version of QT5...
But, from what you can spot from the buildlog here (i386):
https://launchpadlibrarian.net/243657253/buildlog_ubuntu-precise-i386.qtbase-opensource-src-patched_5.5.1+dfsg-2ubuntu1_BUILDING.txt.gz
and here (amd64):
https://launchpadlibrarian.net/243647276/buildlog_ubuntu-precise-amd64.qtbase-opensource-src-patched_5.5.1+dfsg-2ubuntu1_BUILDING.txt.gz
when the builder sets the dependencies, it points to the official QT ones.
I'd like some tips here.
My greedy approach would be to use sed and rename every "libqt5*" and 
"qtbase5*" package to respectively "libqt5p*" and "qtbase5p*", as I 
renamed the packages in my build attempt.

-- 
Giovanni Santini
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