Re: problem building QT for v5

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

On Sunday, 11 May 2014 06:18:53 PM pl...@pi... wrote:
> On 05/11/14 17:51, sfeam wrote:
> > The check for qt5 is done by looking for installation of the following
> > modules:
> >       Qt5Core Qt5Gui Qt5Network Qt5Svg Qt5PrintSupport
> > 		
> > You should be able to find what failed by looking in the configuration
> > log file config.log.   I am guessing that even though you installed qt5
> > you didn't pull one or more of those optional modules.
> 
> I didn't say I'd installed qt5 and I haven't.

I misunderstood your introduction:
 "just tried to update to v5 and it barfed at the QT stage."

> Gnuplot correctly detects 
> qt4 but is looking in a temporary build directory.
> 
> ./configure
> 
>    wxt terminal: yes
>    Qt terminal: yes (qt4)
> 
> 
> log:
> 
> configure:14155: checking for QT
> configure:14163: $PKG_CONFIG --exists --print-errors "QtCore >= 4.5 
> QtGui >= 4.5 QtNetwork >= 4.5 QtSvg >= 4.5"
> configure:14166: $? = 0
> configure:14181: $PKG_CONFIG --exists --print-errors "QtCore >= 4.5 
> QtGui >= 4.5 QtNetwork >= 4.5 QtSvg >= 4.5"
> configure:14184: $? = 0
> configure:14260: result: yes
> configure:14274: WARNING: The Qt terminal will use Qt4.
> ...
> 
> configure:16316: result:   wxt terminal: yes
> configure:16326: result:   Qt terminal: yes (qt4)
> 
> ...
> pkg_cv_QT_CFLAGS='-DQT_SHARED -I/usr/include/qt4 
> -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui 
> -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtSvg  '
> pkg_cv_QT_LIBS='-L/usr/lib/qt4 -lQtNetwork -lQtSvg -lQtGui -lQtCore  '
> 
> ...
> 
> QT_CFLAGS='-DQT_SHARED -I/usr/include/qt4 -I/usr/include/qt4/QtCore 
> -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtNetwork 
> -I/usr/include/qt4/QtSvg  '
> QT_LIBS='-L/usr/lib/qt4 -lQtNetwork -lQtSvg -lQtGui -lQtCore  '
> ....
> 
> UIC='/tmp/x11-libs/qt-core-4.8.2/work/qt-everywhere-opensource-src-4.8.2/bin/uic'
> 
> 
> So the question remains, where is it digging this "UIC" thing from ?

It asks pkg-config, which is supposed to announce where things have
been installed on your machine.  The key lines are these:
      QT4LOC=`$PKG_CONFIG --variable=exec_prefix QtCore`
      UIC=`$PKG_CONFIG --variable=uic_location QtCore`
      MOC=`$PKG_CONFIG --variable=moc_location QtCore`
      RCC=`$PKG_CONFIG --variable=rcc_location QtCore`
      LRELEASE=`$PKG_CONFIG --variable=lrelease_location QtCore`
      AC_MSG_WARN([The Qt terminal will use Qt4.])

If I run this command here I get:
[1] pkg-config --variable=uic_location QtCore
    /usr/lib/qt4/bin/uic

> Maybe whatever file it sources this from is incorrect.
> Where should I look to see what it's doing?

Your pkg-config is apparently returning some garbage location.
Look for a file on your system named QtCore.pc and check what
it contains.  E.g.

[1] locate QtCore.pc
    /usr/lib/pkgconfig/QtCore.pc
[2] cat /usr/lib/pkgconfig/QtCore.pc
    ...