Qt5 switching qreal from float to double on arm*

[Lisandro Damián Nicanor Pérez Meyer]

Note: only for pkg-kde-talk.

On Saturday 02 November 2013 15:29:05 Lisandro Damián Nicanor Pérez Meyer 
wrote:
> Hi! Starting from Qt 5.2.0 (most probably from rc1 and definitely not from
> beta1 currently in experimental) Qt5 will switch qreal from float to double
> on arm*.
> 
> We have the option to keep some archs in float by passing a compilation
> parameter. I've done so for armel and sh4, so only armhf will switch to
> double.
> 
> Of course we are still on time to discuss this, and this is the reason of
> this mail. What do you think WRT the above changes?
> 
> On the other hand, if the above change is kept, symbols for Qt5 on armhf
> managed with pkg-kde-tools' symbolshelper will need an explicit double for
> armhf instead of using qreal's subst. This is because on Qt4 qreal will be
> kept as float.

There's still the chance of doing **quite a bit** of work and backporting the 
changes to Qt4 and make qreal a double on armhf too. But this means a **big** 
transition for armhf would be needed, but on the other hand pkg-kde-tools' 
symbolshelper could be changed to properly manage Qt4 and Qt5.

I want to be clear: this last option could mean *lots* of work and I would 
definitely *not* go ahead with it without a patch to Qt4 ACKed by upstream and 
the rest of Qt/KDE-team.

But I think at least should be considered and team approved/discarded.

Kinds regards, Lisandro.

-- 
<rata> hmm, el enchufe hace chispas...
<-- rata ha dejado este servidor ("Leaving").
<marga> ouch
  Visto en #lugfi, irc.freenode.net

Lisandro Damián Nicanor Pérez Meyer
http://perezmeyer.com.ar/
http://perezmeyer.blogspot.com/
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 836 bytes
Desc: This is a digitally signed message part.
URL: <http://lists.alioth.debian.org/pipermail/pkg-kde-talk/attachments/20131102/043a87d6/attachment.sig>