new compile problem git master, gcc-8

[Jack]

On 2018.06.05 02:14, Thomas Baumgart wrote:
> On Sonntag, 3. Juni 2018 02:23:26 CEST Jack Ostroff wrote:
> 
> > Under Artix Linux, trying to compile KMM from git head, I get
> >
> > In file included from
> > /home/jack/KMM/kmymoney/kmymoney/dialogs/kfindtransactiondlg.cpp:20:
> > /home/jack/KMM/kmymoney/kmymoney/dialogs/kfindtransactiondlg_p.h: In
> > member function ‘void KFindTransactionDlgPrivate::init(bool)’:
> >  
> /home/jack/KMM/kmymoney/kmymoney/dialogs/kfindtransactiondlg_p.h:108:130:
> > error: no matching function for call to
> > ‘KFindTransactionDlg::connect(QHeaderView*, void (QWidget::*)(const  
> QPoint&), KFindTransactionDlg* const&, void  
> (KFindTransactionDlg::*)())’
> >       q->connect(ui->m_register->horizontalHeader(),  
> &QWidget::customContextMenuRequested, q,  
> &KFindTransactionDlg::slotSortOptions);
> 
> The only thing I can think of is that the arguments of the signal and  
> slot don't match. But that shouldn't be a problem. You can try to  
> replace this statement with
> 
>     q->connect(ui->m_register->horizontalHeader(),  
> SIGNAL(customContextMenuRequested()), q, SLOT(slotSortOptions()));
> 
> and see if that makes a difference.
In file included from  
/home/jack/KMM/kmymoney/kmymoney/dialogs/kfindtransactiondlg.cpp:20:
/home/jack/KMM/kmymoney/kmymoney/dialogs/kfindtransactiondlg_p.h: In  
member function ‘void KFindTransactionDlgPrivate::init(bool)’:
/home/jack/KMM/kmymoney/kmymoney/dialogs/kfindtransactiondlg_p.h:108:116:
error: no matching function for call to
‘KFindTransactionDlg::connect(QHeaderView*, const char [30],  
KFindTransactionDlg* const&, const char [19])’
      q->connect(ui->m_register->horizontalHeader(),  
SIGNAL(customContextMenuRequested()), q, SLOT(slotSortOptions()));
                                                                                                                      
^
I've looked at the docs, but I'm having trouble following, and some of  
the examples have other than four parameters to connect().  As far as I  
can tell, qt11 may have added some new ways to connect() but I don't  
see any reasons anything which worked with 10 should not work with 11.

Amy other thoughts?

> 
> >
> > There are other warnings in the same file, and two instances of
> > /usr/include/qt/QtCore/qobject.h:308:13: error: no type named  
> ‘type’ in
> > ‘struct std::enable_if<false, QMetaObject::Connection>’
> > but I figure I'll track things down one at a time.
> >
> > The same code compiles fine on my Gentoo box with gcc-7.3.0.  The  
> Artix
> > box has failed with more than one version of gcc-8.x, currently
> > 8.1.1.    Since this is not my primary PC, it is not critical, but  
> I'm
> > wondering if this might be related to the gcc version.  Is anyone  
> else
> > using this new a gcc?
> >
> > I admit I don't follow the code well enough here - I don't see  
> where q
> > is defined, so I don't know where to even look for a connect  
> function.
> 
> q gets defined here:
> 
>     Q_Q(KFindTransactionDlg);
> 
> See http://wiki.qt.io/D-Pointer for many details on the topic. So  
> connect in fact is QObject::connect.
> 
> > Jack
> 
> --
> 
> Regards
> 
> Thomas Baumgart
Jack