Qt5

[José Fonseca]

Great.  Before I merge Qt5 I'll tag a new release, and then refer to it
from INSTALL.markdown.

This release will be the last with Qt4 support.   And probably it will be
the last with support for tracing on Windows XP, as leveraging support for
__declspec(thread) TLS support in DLLs, which was introduced with Vista,
would simplify the code and probably speed up runtime performance too. And
given that Microsoft has stopped supporting XP I don't think it makes sense
for us to keep jumping through hoops to support it.

We can probably keep support for replaying on XP longer without much
effort, as XP supports __declspec(thread) TLS in .EXEs.

If anybody thinks differently let me know.

Jose

On Fri, May 23, 2014 at 6:39 PM, Lawrence Love <lawlove at gmail.com> wrote:

> Thank you for the consideration (I've been away for a few weeks). I'm on
> debian
> and Qt 5 is available. I just now installed it and rebuilt with all my
> unsubmitted
> gui patches and everything looks good.
>
> Thanks again,
> Larry
>
>
> On Tue, May 6, 2014 at 8:52 AM, Alexander Monakov <amonakov at ispras.ru>wrote:
>
>> On Tue, 6 May 2014, José Fonseca wrote:
>>
>> > Unless there are concerns/objections I'll merge this one of these days.
>>
>> No objection, but a slight concern: Lawrence (CC'ed) contributed some GUI
>> patches recently, I suppose it would be nice to ask if installing Qt 5 is
>> not
>> a problem for him (qt5 is not available in every distro yet).
>>
>> Another concern is that some of the users might be running old/stable/lts
>> branches of distributions such as Debian stable or Ubuntu 12.04; such
>> users
>> will be unable to build the GUI after the merge.  Perhaps the README
>> could be
>> amended with a brief notice that in such situation people can checkout an
>> older revision (e.g. the 5.0 tag) and build that instead of master?
>>
>> Alexander
>
>
>
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