[SOLVED] Qt libraries not found during compile - but libqt3-devel installed!
 

Hello everyone,
Im running Mandriva 2009, and I'd like to compile Midingsolo (http://home.gna.org/midingsolo/index.html) (btw, I hope I'm doing this the right way... If there's a policy on how links and code are posted, please do let me know... I might have missed it).

The developer documentation page (http://home.gna.org/midingsolo/doc.html) lists the following dependencies:

* qt3-mt for the GUI and the QThread class. (version 3.3.1)
* GL1/GLU1/glut3 for the QGLWidget (version ???)
* alsa2 the ALSA developpment library, for sound input (version 1.0.3)
* and/or
* jack the JACK developpment library, for sound input (version 0.94.0)

I didn't find anything called "qt3-mt" in the "Software Management" gui, nor did "urpmq --fuzzy qt3-mt" turn up anything.

Anyway, ./configure gives this error:

checking whether QTDIR environment variable is set... /usr/lib/qt3
checking for Qt library...
configure: error: Qt library not found. Maybe QTDIR isn't properly set or wrong --with-Qt-dir parameter.

I tried running configure using "-with-Qt-dir=/usr/lib/qt3" and "-with-Qt-dir=/usr/lib/qt4", with no results. I've installed both the libqt3-devel and libqt4-devel libraries (since I wasn't sure which qt version to compile with).

rpm -qa |grep libqt turns up this:

libqtxml4-4.4.3-1mdv2009.0
libqt3-static-devel-3.3.8b-8mdv2009.0
libqttest4-4.4.3-1mdv2009.0
libqtcore4-4.4.3-1mdv2009.0
libqtxmlpatterns4-4.4.3-1mdv2009.0
libqtnetwork4-4.4.3-1mdv2009.0
libqtwebkit4-4.4.3-1mdv2009.0
libqt3-devel-3.3.8b-8mdv2009.0
libqtsvg4-4.4.3-1mdv2009.0
libqt3support4-4.4.3-1mdv2009.0
libqtgui4-4.4.3-1mdv2009.0
libqtdbus4-4.4.3-1mdv2009.0
libqtsql4-4.4.3-1mdv2009.0
libqtopengl4-4.4.3-1mdv2009.0
libqt3-3.3.8b-8mdv2009.0
libqt4-devel-4.4.3-1mdv2009.0
libqtscript4-4.4.3-1mdv2009.0
libqtdesigner4-4.4.3-1mdv2009.0

(oh yes, I even tried installing the qt3-static-devel libraries)
the $QTDIR variable points to /usr/lib/qt3, while the $QTLIB points to /usr/lib.
/usr/lib/qt3 has all those *.h files in it.

Any help would be appreciated.. I really need to use this program. Thanks in advance!
Cheers,
Guru

Well, not impossible to compile, more difficult to run.

It's an old app, from 2005, in those days no Mandriva 2009
with a new location of "libqt-mt" files.
( Configure will look in /usr/lib/qt3/lib only )

So please do : # 'cd /usr/lib/qt3', # 'mkdir lib'
# 'cd lib' # 'ln -s /usr/lib/libqt-mt* .' ,
softlinking the files to the current directory (the dot)

You will also need : libalsa2-devel, libjack0-devel, fftw3-devel

Starting "midingsolo" after install, I get "Segmentation fault"

I found this link for other app's
http://www.linuxlinks.com/Software/M...gnal_Analysis/
( googling ... audio note recognition linux )
....

Thanks knudfl, for the useful reply.
Yes, your workaround helped me get past the qt3-libraries issue, and the configure process was successful. However, I find that the urpmi database doesn't have the 'libfftw3-devel' rpm - it looks like this rpm doesn't exist yet for Mandriva 2009, although the libfftw3 rpm does! I searched and found an rpm for Mandriva 2007 (http://rpmfind.net//linux/RPM/mandri...07.1.i586.html), which however depends on a different libfftw3 rpm (3.1.2-2) from the one installed on the system (3.1.2-11) - I've posted code below.
This is frustrating... could you suggest any workarounds? What system are you using, by the way?
Thanks for the links to the other software! I was not aware of most of them, and I will check them out meantime. Basically I require conversion of a pure sine-wave audio signal from a non-midi keyboard to midi notes, in real-time. I had googled for pitch to midi, and audio to midi, I had missed audio to note! Thanks once again.
Cheers,
Guru

rpm -i libfftw3-devel-3.1.2-2mdv2007.1.i586.rpm
error: Failed dependencies:
libfftw3 = 3.1.2-2mdv2007.1 is needed by libfftw3-devel-3.1.2-2mdv2007.1.i586

rpm -qa |grep libfft
libfftw3-3.1.2-11mdv2009.0

I never said "libfftw3-devel" !!!

The package name is "fftw3-devel" ( unlike other mandriva's )
# urpmi fftw3-devel
( Do not read the command, just copy / paste it into a terminal, lol )
...

Solved!
 

Oops... now I am seriously embarrassed. All this is due to an unhealthy infatuation with Mandriva 2009's graphical 'Software Manager', which I assumed accurately reflected information in the URPMI databases. It appears that this is not true. The software manager shows only libfftw3 (no 'devel' package) when I searched for 'fftw3' (and not 'libfftw3') in names. Whereas urpmi fftw3-devel worked... incidentally, the rpm is named libfftw3-devel... I found this rather strange. I think I must report this as a bug in the software manager gui.

Anyways, the program has compiled successfully... and it also seems to be running! At least, the gui came up, and luckily, I didn't get any segmentation fault error.

knudfl, thank you very much for guiding me through this... you rock!
Cheers,
Guru

Well, I am sorry, never thought of it as an error,
just guessed 'fftw3-devel' when nothing else worked
and then got 'libfftw-devel-3.1.2-11mdv2009.0
( I can see that now with 'rpm -qa | grep fftw' )
...