Already done yesterday [1]. Nothing to port (yet) ;)

Cheers

[1]
https://github.com/qgis/QGIS/commit/9a962524cae2010d1e22e3e28d081bc057c1134d

On 10/18/2016 09:53 AM, René-Luc Dhont wrote:
> Thanks Matthias,
> 
> it works!
> 
> can I push this bugfix and backport it ? Or do I have to create a PR ?
> 
> Regards,
> René-Luc
> 
> Le 17/10/2016 à 18:41, Matthias Kuhn a écrit :
>> Hmmm...
>>
>> What about replacing isinf with qIsInf? (and if required #include
>> "qgis.h")?
>>
>> On 10/17/2016 06:32 PM, René-Luc Dhont wrote:
>>> Hi Matthias,
>>>
>>> It does not help me if I add #include <math.h> in
>>> src/gui/qgsscalerangewidget.cpp
>>>
>>> Regards,
>>> René-Luc
>>>
>>> Le 17/10/2016 à 18:26, Matthias Kuhn a écrit :
>>>> He René-Luc
>>>>
>>>> does it help if you #include <math.h> in
>>>> src/gui/qgsscalerangewidget.cpp?
>>>>
>>>> Matthias
>>>>
>>>> On 10/17/2016 06:08 PM, René-Luc Dhont wrote:
>>>>> Hi devs,
>>>>>
>>>>> I have this error during the qgis master_2 building:
>>>>> ```
>>>>> ../src/gui/qgsscalerangewidget.cpp:93:21: error: ‘isinf’ was not
>>>>> declared in this scope
>>>>>      if ( isinf( scale ) )
>>>>>                        ^
>>>>> ../src/gui/qgsscalerangewidget.cpp:93:21: note: suggested alternative:
>>>>> In file included from /usr/include/c++/5/random:38:0,
>>>>>                    from /usr/include/c++/5/bits/stl_algo.h:66,
>>>>>                    from /usr/include/c++/5/algorithm:62,
>>>>>                    from /usr/include/qt4/QtCore/qglobal.h:68,
>>>>>                    from /usr/include/qt4/QtCore/qnamespace.h:45,
>>>>>                    from /usr/include/qt4/QtCore/qobjectdefs.h:45,
>>>>>                    from /usr/include/qt4/QtCore/qobject.h:47,
>>>>>                    from /usr/include/qt4/QtGui/qlayout.h:45,
>>>>>                    from /usr/include/qt4/QtGui/qgridlayout.h:45,
>>>>>                    from /usr/include/qt4/QtGui/QGridLayout:1,
>>>>>                    from ../src/gui/qgsscalerangewidget.h:19,
>>>>>                    from ../src/gui/qgsscalerangewidget.cpp:16:
>>>>> /usr/include/c++/5/cmath:621:5: note:   ‘std::isinf’
>>>>>        isinf(_Tp __x)
>>>>>        ^
>>>>> ../src/gui/qgsscalerangewidget.cpp: In member function ‘void
>>>>> QgsScaleRangeWidget::setMaximumScale(double)’:
>>>>> ../src/gui/qgsscalerangewidget.cpp:105:21: error: ‘isinf’ was not
>>>>> declared in this scope
>>>>>      if ( isinf( scale ) )
>>>>>                        ^
>>>>> ../src/gui/qgsscalerangewidget.cpp:105:21: note: suggested
>>>>> alternative:
>>>>> In file included from /usr/include/c++/5/random:38:0,
>>>>>                    from /usr/include/c++/5/bits/stl_algo.h:66,
>>>>>                    from /usr/include/c++/5/algorithm:62,
>>>>>                    from /usr/include/qt4/QtCore/qglobal.h:68,
>>>>>                    from /usr/include/qt4/QtCore/qnamespace.h:45,
>>>>>                    from /usr/include/qt4/QtCore/qobjectdefs.h:45,
>>>>>                    from /usr/include/qt4/QtCore/qobject.h:47,
>>>>>                    from /usr/include/qt4/QtGui/qlayout.h:45,
>>>>>                    from /usr/include/qt4/QtGui/qgridlayout.h:45,
>>>>>                    from /usr/include/qt4/QtGui/QGridLayout:1,
>>>>>                    from ../src/gui/qgsscalerangewidget.h:19,
>>>>>                    from ../src/gui/qgsscalerangewidget.cpp:16:
>>>>> /usr/include/c++/5/cmath:621:5: note:   ‘std::isinf’
>>>>>        isinf(_Tp __x)
>>>>>        ^
>>>>> ```
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