[Interest] Building Qt from Sources

[Szalata, Zenon M.]

Hi Thiago,
I am replying to this since I have some new information.
I started all over, removed all environment variables that might have anything to do with QT.  Unpacked both qt-everywhere-opensource-src-4.8.0.tar.gz and qt-creator-2.4.1-src.tar.gz and built both successfully.
Designer is working in qt-4.8.0.
Creator also seems to work but I get these troubling messages when I start it up:

zms at esaanal2 $ bin/qtcreator
Cannot update Qt version information: /opt/qt/qt/Madde/targets/harmattan_10.2011.34-1/bin/qmake cannot be run.
Cannot update Qt version information: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot update Qt version information: /opt/qt/qt/Desktop/Qt/474/gcc/bin/qmake cannot be run.
Cannot update Qt version information: /opt/qt/qt/Desktop/Qt/4.8.0/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Desktop/Qt/4.8.0/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Desktop/Qt/4.8.0/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Desktop/Qt/4.8.0/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Desktop/Qt/4.8.0/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Madde/targets/harmattan_10.2011.34-1/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Madde/targets/harmattan_10.2011.34-1/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Desktop/Qt/4.8.0/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Desktop/Qt/4.8.0/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Desktop/Qt/474/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Desktop/Qt/474/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Desktop/Qt/4.8.0/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Desktop/Qt/4.8.0/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Madde/targets/harmattan_10.2011.34-1/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Madde/targets/harmattan_10.2011.34-1/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Desktop/Qt/474/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Desktop/Qt/4.8.0/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Desktop/Qt/474/gcc/bin/qmake cannot be run.
Cannot determine the Qt version: /opt/qt/qt/Desktop/Qt/4.8.0/gcc/bin/qmake cannot be run.
Cannot update Qt version information: /opt/qt/qt/Madde/targets/harmattan_10.2011.34-1/bin/qmake cannot be run.
Cannot update Qt version information: /opt/qt/qt/Madde/targets/harmattan_10.2011.34-1/bin/qmake cannot be run.
Cannot update Qt version information: /opt/qt/qt/Madde/targets/harmattan_10.2011.34-1/bin/qmake cannot be run.
Cannot update Qt version information: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot update Qt version information: /opt/qt/qt/Simulator/Qt/gcc/bin/qmake cannot be run.
Cannot update Qt version information: /opt/qt/qt/Desktop/Qt/474/gcc/bin/qmake cannot be run.
Cannot update Qt version information: /opt/qt/qt/Desktop/Qt/474/gcc/bin/qmake cannot be run.
Cannot update Qt version information: /opt/qt/qt/Desktop/Qt/4.8.0/gcc/bin/qmake cannot be run.
Cannot update Qt version information: /opt/qt/qt/Desktop/Qt/4.8.0/gcc/bin/qmake cannot be run.

I did not try to create anything with it so it might work.  It looks like it really wants the Qt_SDK package.

Thanks,
Zen


> -----Original Message-----
> From: interest-bounces+zms=slac.stanford.edu at qt-project.org
> [mailto:interest-bounces+zms=slac.stanford.edu at qt-project.org] On Behalf Of
> Thiago Macieira
> Sent: Tuesday, February 21, 2012 12:27 AM
> To: interest at qt-project.org
> Subject: Re: [Interest] Building Qt from Sources
> 
> On segunda-feira, 20 de fevereiro de 2012 21.38.28, Szalata, Zenon M. wrote:
> > I am working at a Laboratory where RedHat Enterprise Linux 5 or 6 are
> > the only Unix OS used on desktop computers.  Presently, installing qt
> > 4.8 from SDK package fails.  So I am trying to install from sources.
> > I have successfully installed qt 4.8.0 from
> > qt-everywhere-opensource-src-4.8.0.tar.gz.  This works. I have
> > configured this to install in non standard location.  The designer seems to
> work fine.
> >  Examples are also working.  The only problem is that this
> > installation does not include qtcreator. So, I found
> > qt-creator-2.4.1-src.tar.gz.  I can't build it because it seems to
> > want the SDK installation, which I can't have.
> 
> Why do you think it wants the SDK installation? Are you getting an error
> message? I have qt-creator built here from sources and have done so for 3
> years, before the SDK was invented.
> 
> > Is it possible to have both qt 4.8 built from sources and qtcreator
> > also built from sources so that they work together?
> 
> Yes. That's how both Qt and Qt Creator are themselves developed :-)
> 
> > If the answer is yes, I
> > need some guidance as to how this can be done. Are there other source
> > packages that might include qt 4.8 and qtcreator?
> 
> There is no extra guidance because this should be quite simple. The commands
> you listed below should have worked. You need to tell us why they didn't.
> 
> > Unpacked qt-creator-2.4.1-src.tar.gz in the third directory and cd
> > /opt/qt/qtc-2.4.1 qmake /opt/qt/qt-creator-2.4.1-src/qtcreator.pro
> > and this last command fails and I suspect that it needs the SDK
> > installation of qt 4.7.4 or higher.
> 
> Qt Creator requires a recent Qt to build. Check that you ran the qmake from
> the Qt 4.8.0 that you've just compiled, not a previous, older version of Qt that
> you might have in your system.
> 
> --
> Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
>    Software Architect - Intel Open Source Technology Center
>       PGP/GPG: 0x6EF45358; fingerprint:
>       E067 918B B660 DBD1 105C  966C 33F5 F005 6EF4 5358