[QGIS-Developer] [Qgis-developer] Min Qt version

[Radim Blazek]

On Thu, May 25, 2017 at 10:53 AM, Nyall Dawson <nyall.dawson at gmail.com> wrote:
>> What min version of Qt are you able to compile with? We should update INSTALL.
>>
>> In INSTALL requirements it is also written: Qwt >= 5.0 & (< 6.1 with
>> internal QwtPolar)
>> but Qwt 6.0 does not compile with Qt >= 5.4:
>> http://www.qtcentre.org/archive/index.php/t-63275.html
>> Is it still true that Qwt must be < 6.1? I have compiled with 6.1.3
>> (but not tested related functionality).
>
> I can't help with minimum Qt version (it's either 5.4 or 5.5, but I
> don't believe a firm decision has been made), but the minimum Qwt is
> 6.1. In this case the INSTALL is incorrect and needs to be updated.

I have updated INSTALL to:
Qt >= 5.4.0
Qwt >= 6.1

Just for curiosity, question for C++ experts, how this can compile/work:
    QStringList lineParts = part.split( linePartRx, QString::SkipEmptyParts );
    label = lineParts.mid( 5 ).join( ' ' );
if mid() returns QList<QString> which has no join()?

Radim