Re: Difficulties building rc1 with Qt on Linux

[Philipp K. J. <ja...@ie...>]

[snip]

> > 
> > During the "configure" stage, everything goes
> > fine, and configure tells me that the QT terminal
> > will be built:
> > 
> >   Qt terminal: yes (qt5)
> > 
> > But then when I run "make", the process 
> > eventually dies, with a complaint about the
> > Qt utility "uic": 
> > 
> > /usr/bin/uic -o ui_QtGnuplotSettings.h
> > qtterminal/QtGnuplotSettings.ui uic: could not find a Qt
> > installation of '' 
> > 
> > The uic tool is installed (in /usr/bin/uic),
> > but somehow the install seems to be broken -

Thanks for the quick response!

> 
> What linux distro are you using?
> Is Qt4 installed also?

The distro is Mint 16 on 64bit.

> 
> At least on mine (Mageia4) the uic in /usr/bin/uic
> is from Qt4, and the correct uic for Qt5 is in 
> /usr/lib64/qt5/bin/uic

"locate" tells me that there is another "uic" in 
/usr/lib/x86_64-linux-gnu/qt5/bin/ (of all places).

> 
> The configure script requests the location of Qt5
> executables via the pkg-config utility:
> 
>   pkg-config Qt5Core --variable=exec_prefix
> 
> If the pkg-config files for Qt5 are not present,
> or are incorrect, that would explain your problem.
> In this case please report the configuration error
> to your linux distro.

The distro provides a "qt5-default" package (which
I now have installed) and which (supposedly) makes
Qt5 the default when dev libs are used, but it does
not work (the prefix is still "/usr"). So that seems 
to be a distro bug.

> 
> Meanwhile you can probably work around this by finding
> the line where this is invoked in the ./configure script:
> 
> [1] grep -n QT5LOC configure
> 14304:      QT5LOC=`$PKG_CONFIG --variable=exec_prefix Qt5Core`
> 
> Change that to
> 			QT5LOC=/usr/lib/qt5
> 
> or wherever Qt5 really is installed on your system.

That gets me further, but not home. Now, compilation 
dies here:

lrelease qtterminal/po/qtgnuplot_fr.ts -qm qtgnuplot_fr.qm
lrelease: could not exec '/usr/lib/x86_64-linux-gnu/qt5/bin/lrelease':
No such file or directory

Which is odd in its own way, because lrelease seems
to be only available (at least for my distro) in 
some Qt4 package. 

Thoughts?