has anyone been able to build QT mobility libraries on Linux successfully ?
 

Has anybody been able to compile the QT mobility api libraries successfully on Linux(scratchbox FREMANTLE_X86) after installing the QT4.6 SDK binary ?

QT 4.6 SDK ==> http://qt.nokia.com/downloads/sdk-linux-x11-32bit-cpp

QT Mobility API==> http://get.qt.nokia.com/qt/solutions...0.0-tp2.tar.gz

Ive been getting several compilation errors mainly missing headers, too many to even post here, can anyone list the steps if they did it sucessfully.

the output of the configure script and subsequently the make
has been attached.

thanks for any help.

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

OpenGL is missing

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

thanks admiral0, can you direct me to a link please ?
Im surprised why the QT 4.6 SDK didnt install that and the page for the QT mobility API's had no mention of this either.

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

I'd guess the configure script uses "wrong" qmake since 4.6 qmake is in /opt/something (I don't remember the path to qmake). you might want to set 4.6 qmake as your default.

for info on setting the default Qt version see http://jpnurmi.kapsi.fi/blog/2008/03...ion-in-ubuntu/

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

Ive set the PATH to pick the correct qt which is qt4.6 which I installed in /opt/qtsdk-2009.05 the default installation path of the QT4.6 SDK

[sbox-FREMANTLE_X86: ~] > which qmake
/opt/qtsdk-2009.05/qt/bin/qmake

also in the make output you can see the include directories are also from the same path where I installed QT4.6

so it doesnt seem to me thats the issue.

configure also detected QT4.6 ( check log ), else it would have failed stating QT is not version >= 4.6.

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

just got it progressed.

had to download libglui-dev( sudo apt-get libglui-dev ) and I couldnt do that in the scratchbox environment as my repository was not configured so I installed it in my main Ubuntu env and copied the libs/headers over to the scratchbox target.

errors didnt stop there, it later complained of not finding QtDBus headers ! while compiling the systemInfo module to QtMobility and the headers existed except the makefile didnt include it so I manually edited that to progress it.

now its failed again (attached screenshot) as Im writing, this time in mediacapture module, will post when im done buidling this.

again, did any one of you try this, and have succesfully built it ?
Im not sure if I have screwed up somewhere, it cant be that there are so many errors in a released version of QT or is there ? :confused:

g++ -c -pipe -g -pthread -I/usr/include/gstreamer-0.10 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2 -pthread -I/usr/include/gstreamer-0.10 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2 -pthread -I/usr/include/gstreamer-0.10 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2 -pthread -I/usr/include/gstreamer-0.10 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2 -pthread -I/usr/include/gstreamer-0.10 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2 -fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -D_REENTRANT -fPIC -DQMEDIA_GSTREAMER_PLAYER -DQMEDIA_GSTREAMER_CAPTURE -DQT_PLUGIN -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/targets/FREMANTLE_X86/opt/qtsdk-2009.05/qt/mkspecs/linux-g++ -I. -I/targets/FREMANTLE_X86/opt/qtsdk-2009.05/qt/include/QtCore -I/targets/FREMANTLE_X86/opt/qtsdk-2009.05/qt/include/QtGui -I/targets/FREMANTLE_X86/opt/qtsdk-2009.05/qt/include/QtMultimedia -I/targets/FREMANTLE_X86/opt/qtsdk-2009.05/qt/include -I/targets/FREMANTLE_X86/opt/qtsdk-2009.05/qt/include/QtMedia_tp -I../../../src/global -I../../../src/multimedia -Imediaplayer -Imediacapture -I/targets/FREMANTLE_X86/opt/qt-mobility/include -I../../../build/Debug/gstengine/moc -o ../../../build/Debug/gstengine/qgstreamercapturesession.o mediacapture/qgstreamercapturesession.cpp
mediacapture/qgstreamercapturesession.cpp: In member function 'bool QGstreamerCaptureSession::rebuildGraph(QGstreamerC aptureSession::PipelineMode)':
mediacapture/qgstreamercapturesession.cpp:615: error: '_gst_debug_bin_to_dot_file' was not declared in this scope
mediacapture/qgstreamercapturesession.cpp: In member function 'void QGstreamerCaptureSession::dumpGraph(const QString&)':
mediacapture/qgstreamercapturesession.cpp:643: error: '_gst_debug_bin_to_dot_file' was not declared in this scope
make[3]: *** [../../../build/Debug/gstengine/qgstreamercapturesession.o] Error 1
make[3]: Leaving directory `/tmp/temp/qt-mobility-src-1.0.0-tp2/plugins/multimedia/gstreamer'
make[2]: *** [sub-gstreamer-make_default] Error 2
make[2]: Leaving directory `/tmp/temp/qt-mobility-src-1.0.0-tp2/plugins/multimedia'
make[1]: *** [sub-multimedia-make_default] Error 2
make[1]: Leaving directory `/tmp/temp/qt-mobility-src-1.0.0-tp2/plugins'
make: *** [sub-plugins-make_default-ordered] Error 2

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

Hi krk969,

Be happy :-) Someone just answered your prayers :-)

And I'm happy too because I just wrote the article that answers your question. What a coincidence. ;-)

I documented how to compile/install Qt Mobility on Linux here.

I'm on Ubuntu 9.10, which has some known issues with Qt Mobility 1.0 TP2.

Key points include:

• Downgrade to GCC/G++ 4.3
• Install Qt 4 dev dependencies and some dependencies of Qt Mobility implementation (network-manager etc.)
• Apply patch from Lorn Potter

I also shared the experience of running the Qt Quickstart App, not so impressive but at least it works as advertised. :-)

There's also issue with GDB 7.0 but I'm postponing this for later, until I have a real need for debugging.

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

great job ceefour !:D

I was also going to document the same today but your blog looks neat , will go through it when I get the time and report any comments.
I had already uploaded QtSystemInfo module of the Qt Mobility API in the extras repository since my app needed it.

I had made some tweaks in the systinfo.pro to get this compiling.
somehow it wasnt detecting the architecture as unix so I had to move those settings to global ;)
And yes, NetworkManager needed to be installed, I had thought it wasnt neccessary since QtNetworkManager has its own backend:confused:, maybe Im wrong here but thats what I had read

picked from http://qt.nokia.com/doc/qtmobility-1...ysteminfo.html
".....
Building and compiling

This library requires Qt 4.6 to be installed.

To build the library, run qmake and make.

Linux supports a NetworkManager based backend and generic backend using QNetworkInterface only. By default the generic backend is selected. If the NetworkManager backend is required run qmake as follows:
......."

As a sidenote, The QT app which uses QtSystemInfo is here for you to take a look and comment. ==>http://talk.maemo.org/showthread.php?p=446333

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

I just realized that it shouldn't have been necessary for me to compile Qt 4.6 SDK from source.

The huge size of complete Qt Development Environment put me off (it would took hours or even days to download a ~500 MB file here in Indonesia's wireless), and I opted to install Qt Creator, and compile Qt 4.6 SDK separately. The compilation took about 2.5 hours. (!)

I should've been more (or less?) patient.

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

Now that I have an N900, and looking to port my Qt Mobility apps to it... I realize how wrong my replies were. I'm sorry to have confused you. My previous replies were my experiences on building Qt Mobility on Ubuntu Karmic Koala 9.10 on a desktop... not on scratchbox for Maemo. I didn't even know what scratchbox was or what is Fremantle. ;-) (later on I successfully ported the Qt apps to S60, so I have a bit of experience there too)

(I figured at this point you've figured the solution yourself anyway, right?) :-)

I'll be starting to develop Maemo apps in the coming weeks so I shall put you on my radar when things go wrong hehehe =)) I've just started to install scratchbox and stuff on my Ubuntu machine. I'm very new to all this.

Thanks krk969 for your patience.

Congratulations on the battery level widget. I haven't tried it but I truly appreciate your excellent work.

I'm pretty worried about developing on a N900 though, as I've used it as my main phone too. Is it "safe" w.r.t. the chances of bricking it?

I'm looking to PyQt as an alternative to hardcore Qt C++ with seemingly endless build problems... What do you think?

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

Check Python battery level n900 and PyQt N900 to have a look at what Python can do to Qt.

The dbus battery level is a good alternative if qt mobility makes you mad =))

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

Ive stopped my work on pushing qtmobility libraries to extras, just because there are gurus from Trollltech(Nokia) already working towards this. Im hoping to see QT mobility being released with QT4.6 with PR1.2 , lets wait and see, no official news yet.

no issues, glad to be of help anytime :)

The new QT based battery level widget is here (linked in my signature also), Ive updated it to use the hal daemon instead so users can set a polling interval that saves a lot of battery juice.
Also because qt mobility is still beta and they keep changing code.

I wont give you any advice on this , its upto each one of us to take the step or not.
But what I can say is there is a nice wiki to reflash ;) if something goes terribly wrong.
I havent had issues myself, I use extras-devel quite a bit (cautiously).

If you dont have much experience with C++, I would suggest start with PyQT, its certainly easier to get started.
But C++ apps will def. be faster in execution, and Im not 100% sure if we have all QT bindings for python and any limitations. Check their PyQT website or dig into the pyQT mailing lists.

good luck !

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

QT Mobility is only scheduled for PR1.3, that was confirmed by one of the QT Mobility (main?) developers, I think I saw this in the "what can we realisticly expect in PR1.2? " Wiki entry and related thread(s).

So It means it's still some time (aka far) away ...

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

From the news:

• http://www.linux-magazine.com/Online...st-Mobile-APIs
• Qt 4.6.2 for Maemo 5 released
• http://labs.trolltech.com/blogs/2010...-beta-package/

Has anyone confirmed that Qt 4.6.2 binary package in Maemo indeed came with Qt Mobility built-in?

(and I'm also wondering if it's trivial to build Qt Mobility SDK in scratchbox)

No mention of Qt Mobility in there. :-(

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

if this is updated information then it shows the status of the qt mobility development for the various platforms.


Yes, if you want , you can download the sources from the git for individual modules and build them.
I did find it trivial, but not all of them compiled smoothly for me last year, dont know if things have changed since then.

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

Just to note that Kate Alhola says that the status above is out of date with regard to many QtMobility components.

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

thanks for the updates attila77.
Although that mailing list shouldn't have been the place to post updates on QtMobilty, when they have a QT documention page detailing Qt mobility. Easy to be mislead ;).

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

PyQt is roughly following the stable Fremantle Qt release schedule. So we have Qt4.5 support in extras right now, and Qt4.6 support (with all QMaemo5 classes) will appear the moment PR1.2 is released. In the same vein, if QtMobility becomes part of the official release in PR1.3, that's when PyQt will start supporting it.

As for speed, that depends on actual code. Apart from the startup delay, if you are careful in what you do in even handlers and stay away from costly conversions, you can have a speed that is very-very close to native (C++). In practice, it's good enough for everything except the most demanding games and supermassive applications like office :)

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

Might wanna check this: http://maemo.org/community/maemo-dev...mo_5_using_qt/

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

Overheard from http://labs.trolltech.com/blogs/2010...-beta-package/ :

So it seems installing Qt Mobility beta on Maemo device itself is trivial.

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

Overheard from http://labs.trolltech.com/blogs/2010...-beta-package/ :

So it seems installing Qt Mobility beta on Maemo device itself is trivial.

Re: has anyone been able to build QT mobility libraries on Linux successfully ?
 

I've documented my experience here
http://tronprog.blogspot.com/2010/06...in-ubuntu.html
hope it helps :)