Re: Difficulties building rc1 with Qt on Linux

[sfeam <sf...@us...>]

On Sunday, 15 June 2014 12:22:16 PM Philipp K. Janert wrote:
> 
> [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?

I don't know about Mint, but for Mageia lrelease comes in a 
separate package qttools5-5.2.0-3.mga4

	Ethan