[scribus-dev] [scribus] compiling Scribus 1.4.3 on an ARM CPU (Debian Wheezy)

Craig Bradney cbradney at scribus.info
Tue Sep 3 10:07:00 UTC 2013


Yep that would be fine. I'll be online

Thanks
Craig



On 03/09/2013, at 11:28, William Bell <whbell at btinternet.com> wrote:

> Hi Craig,
> 
> Yes, would sometime between 21:00 and 22:00 CEST (GMT+2hrs) work?
> 
> Thanks and best regards,
> 
> Will
> 
> From: Craig Bradney <cbradney at scribus.info>
> To: Scribus Development Mailing List <scribus-dev at lists.scribus.net> 
> Cc: "scribus-dev at lists.scribus.info" <scribus-dev at lists.scribus.info> 
> Sent: Tuesday, 3 September 2013, 11:06
> Subject: Re: [scribus-dev] [scribus] compiling Scribus 1.4.3 on an ARM CPU (Debian Wheezy)
> 
> Can you make it into our Scribus IRC channel tonight CET?
> 
> Thanks
> Craig
> 
> 
> 
> On 03/09/2013, at 10:23, William Bell <whbell at btinternet.com> wrote:
> 
>> Hi,
>> 
>> Can anyone help me on this list?
>> 
>> Thanks and best regards,
>> 
>> Will
>> 
>> From: William Bell <whbell at btinternet.com>
>> To: Scribus User Mailing List <scribus at lists.scribus.net>; "scribus at lists.scribus.info" <scribus at lists.scribus.info> 
>> Sent: Friday, 23 August 2013, 13:31
>> Subject: Re: [scribus] compiling Scribus 1.4.3 on an ARM CPU (Debian Wheezy)
>> 
>> Hi,
>> 
>> Who are the lead developers of the Scribus Qt4 interface?
>> 
>> Thanks and best regards,
>> 
>> Will
>> 
>> 
>> 
>> 
>> ________________________________
>> From: William Bell <whbell at btinternet.com>
>> To: "scribus at lists.scribus.info" <scribus at lists.scribus.info> 
>> Sent: Tuesday, 20 August 2013, 17:36
>> Subject: [scribus] compiling Scribus 1.4.3 on an ARM CPU (Debian Wheezy)
>> 
>> 
>> Hi,
>> 
>> I am trying to build Scribus 1.4.3 on an ARM CPU that runs Debian Wheezy (Raspbian).  Following the installation of all of the dependencies, the compilation goes well until 
>> 
>> [ 66%] Building CXX object scribus/CMakeFiles/scribus.dir/scpainter.cpp.o
>> /home/pi/Scribus/scribus/scpainter.cpp: In member function ‘void ScPainter::drawVPath(int)’:
>> /home/pi/Scribus/scribus/scpainter.cpp:1119:31:
>> error: no matching function for call to 
>> ‘QPen::setDashPattern(QVector<double>&)’
>> /home/pi/Scribus/scribus/scpainter.cpp:1119:31: note: candidate is:
>> /usr/include/qt4/QtGui/qpen.h:87:10: note: void QPen::setDashPattern(const QVector<float>&)
>> /usr/include/qt4/QtGui/qpen.h:87:10:
>> note:   no known conversion for argument 1 from ‘QVector<double>’
>> to ‘const QVector<float>&’
>> make[2]: *** [scribus/CMakeFiles/scribus.dir/scpainter.cpp.o] Error 1
>> make[1]: *** [scribus/CMakeFiles/scribus.dir/all] Error 2
>> make: *** [all]
>> Error 2
>> 
>> It is very clear why this fails.  In Qt4 there is
>> 
>> /usr/include/qt4/Qt/qglobal.h
>> 
>> typedef QT_COORD_TYPE qreal;
>> #elif defined(QT_NO_FPU) || defined(QT_ARCH_ARM) || defined(QT_ARCH_WINDOWSCE) || defined(QT_ARCH_SYMBIAN)
>> typedef float qreal;
>> #else
>> typedef double qreal;
>> #endif
>> 
>> The Qt functions use qreal, rather than double of float.  In the Scribus source code there are lots of 
>> 
>> QList<double> and QVector<double>
>> 
>> While I could use sed to switch these to qreal, there are other pieces of code such as
>> 
>> Scribus/scribus/util.cpp
>> 
>> void getDashArray(int dashtype, double linewidth, QVector<float> &m_array) {
>>    QVector<double> tmp;
>>    getDashArray(dashtype, linewidth, tmp);
>>    m_array.clear();
>>    for (int i = 0; i < tmp.count(); ++i) {
>>    m_array << static_cast<float>(tmp[i]);
>>   }
>> }
>> 
>> void getDashArray(int dashtype, double linewidth, QVector<double> &m_array)
>> {
>>         m_array.clear();
>>         if ((dashtype == 1) || (dashtype == 0))
>>                 return;
>>         double Dt = qMax(1.0*linewidth, 0.1);
>>         double Sp = qMax(2.0*linewidth,
>> 0.1);
>>         double Da = qMax(4.0*linewidth, 0.1);
>>         switch (dashtype)
>>         {
>> 
>> 
>> Why is QVector<double> used instead of QVector<qreal> etc?  If I use sed, I will have to remove overloaded functions that include <float>.  Is this safe?
>> 
>> Thanks and best regards,
>> 
>> Will
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