[Development] ABI change on arm*, call to distros' maintainers

Thiago Macieira thiago.macieira at intel.com
Wed Nov 6 19:36:32 CET 2013


On quarta-feira, 6 de novembro de 2013 21:51:39, Konstantin Tokarev wrote:
> 06.11.2013, 21:01, "Lisandro Damián Nicanor Pérez Meyer" 
<perezmeyer at gmail.com>:
> > Hi! Some days ago Sune Vuorela pointed me at:
> > 
> > <https://codereview.qt-project.org/#change,67001>
> > 
> > Now this means that, if not explicitily overriden, an ABI incompatible
> > change will happen on arm*.
> > 
> > In Debian we are considering if the problem of breaking ABI without a
> > soname bump is worth the effort for armhf, but it would be also good to
> > try and coordinate between distros so as to try to keep binary
> > compatibility between us.
> > 
> > What are you thinking about this?
> 
> Use of double in "no fpu" clause looks really wrong.

That's "armhf", where the "hf" stands for "hard float".

I should also point out that this option now allows selecting qreal to be float 
on other platforms, besides ARM. Many MIPS boards are FPU-less, so they might 
benefit from a change.
-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center
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