[mythtv-users] Qt 5.9

[Stuart Auchterlonie]

On 10/04/18 21:13, Tom Dexter wrote:
> On Mon, Apr 9, 2018 at 7:00 AM, Stuart Auchterlonie
> <stuarta at squashedfrog.net> wrote:
>>
>> It's best to recompile if you can.
>>
>> Regards
>> Stuart
>>
> 
> Quick question on this one: From what I'm finding, a recompile for
> that version upgrade should only be needed it private headers are
> being used(?). Is that correct, and does MythTV use them at all?
> 

We shouldn't be using any private headers from Qt,
and i'm not aware of any being used.

You definitely won't need a rebuild within the same
Qt minor version. eg Qt 5.9.3 -> 5.9.4.

The switch between Qt 5.7 -> 5.9 "in theory" you could
get away without a rebuild if the ABI doesn't change.

However it's between the minor releases that Qt deprecates
(but not removes) functionality, which is why the recommendation is
always to rebuild on a minor version change.


Regards
Stuart