[SOLVED] QT program with ALSA lib won't compile : ALSA development package not found

[PALYGAP]

Hi,

I am new to QT and I have just installed QT5 on a DEBIAN 7.5 contained in a VirtualBox on my MAC. QT creator runs fine and I can compile the PAINTING example project and run it.

The problem I have is trying to compile the project Virtual MIDI Piano Keyboard : "VMPK":http://sourceforge.net/projects/vmpk/
I get a message saying "ALSA development package not found"

I installed the following Debian package
aptitude install alsa-base alsa-utils alsa-tools libasound2 libasound2-dev
--> The build problem was still there

I did download the following package from !http://www.alsa-project.org/main/index.php/Main_Page()! :

• alsa-lib-1.0.27.2
• alsa-tools-1.0.27
• alsa-oss-1.0.25
  compiled and installed them
  --> The build problem was still there

tryed to build and install

• alsa-utils-1.0.27.2
  but when running ./configure && make
  I got : amixer.c:559: undefined reference to 'snd_pcm_chmap_name'

The problem seem to come from the installation of the ALSA (dev ?) environment but maybe the problem does not come from ALSA install but from no installing a component in QT ?

Thanks in advance for your help.

ERIC

[SGaist]

Hi and welcome to devnet,

You need to install the alsa dev package which name is IIRC libasound2-dev

On a side note it's Qt QT stands for Apple QuickTime

[PALYGAP]

Thanks for the tip. Glad to be here.

I think I have already done the install with this command :
aptitude install alsa-base alsa-utils alsa-tools libasound2 libasound2-dev

But maybe it is not installed properly. I will check this evening by uninstalling and installing again.

I'll just say a few more things about what I am trying to do (might interest somebody).
I am in the process of migrating a MIDI project (The MidyAX) that I did on ARDUINO/4D uVGA to the LINUX world. So I need to access MIDI through ALSA and have a graphic environnement too. Qt seem the best choice since the project will also run on RPi or BBB boards. Here the link to demo videos of the current version of the project :
https://www.youtube.com/watch?v=sRJMb4RNuwo
So it's project centered on piloting a MIDI device (AXE-FX). The aim is to use the BCR2000 MIDI control surface to do that in the best possible way.

[PALYGAP]

I have run : dpkg-query -l 'alsa' and get
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-============-============-=================================
un alsa <none> (no description available)
ii alsa-base 1.0.25+3~deb all ALSA driver configuration files
ii alsa-oss 1.0.25-1 i386 ALSA wrapper for OSS applications
ii alsa-tools 1.0.25-2 i386 Console based ALSA utilities for
ii alsa-utils 1.0.25-4 i386 Utilities for configuring and usi
ii bluez-alsa:i38 4.99-2 i386 Bluetooth ALSA support
un gstreamer0.10- <none> (no description available)
un libesd-alsa0 <none> (no description available)
un libsdl1.2debia <none> (no description available)
ii libwine-alsa:i 1.4.1-4 i386 Windows API implementation - ALSA

I ran : dpkg-query -l 'sound' and got :
+++-==============-============-============-=================================
un freedesktop-so <none> (no description available)
un libasound-dev <none> (no description available)
ii libasound2:i38 1.0.25-4 i386 shared library for ALSA applicati
ii libasound2-dev 1.0.25-4 i386 shared library for ALSA applicati
un libasound2-doc <none> (no description available)
un libasound2-plu <none> (no description available)
ii libasound2-plu 1.0.25-2 i386 ALSA library additional plugins
ii libsoundtouch0 1.6.0-3 i386 Sound stretching library
un linux-sound-ba <none> (no description available)
ii sound-juicer 3.4.0-3 i386 GNOME CD Ripper
ii sound-theme-fr 0.7.pristine all freedesktop.org sound theme

Looks like ALSA deveopment is installed.

[SGaist]

Can you run your configure script with the -v option ? It will show you what fails when trying to detect ALSA dev packages

[PALYGAP]

Thanks for the support and helping me with my problem that's cool. I feel less alone.

Sorry but you mean the configure script of the ALSA installation package or a configure script for QT ?

Running ./configure -v && make for ALSA-LIB, I got :
@Making all in doc
make[1]: Entering directory /usr/src/alsa-lib-1.0.27.2/doc' Making all in pictures make[2]: Entering directory /usr/src/alsa-lib-1.0.27.2/doc/pictures'
make[2]: Nothing to be done for all'. make[2]: Leaving directory /usr/src/alsa-lib-1.0.27.2/doc/pictures'
......
...
....
Making all in simple
make[3]: Entering directory /usr/src/alsa-lib-1.0.27.2/modules/mixer/simple' CC sbase.lo CCLD smixer-sbase.la CC ac97.lo CC sbasedl.lo CCLD smixer-ac97.la CC hda.lo CCLD smixer-hda.la make[3]: Leaving directory /usr/src/alsa-lib-1.0.27.2/modules/mixer/simple'
make[3]: Entering directory /usr/src/alsa-lib-1.0.27.2/modules/mixer' make[3]: Nothing to be done for all-am'.
...
...
...
@
Aparantly no errors

I ran ./configure -v && make for ALSA-UTILS
@root@debian32wheezy:/usr/src/alsa-utils-1.0.27.2# ./configure -v && make > alsa-utils-configure.log
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
...
...
...

checking for special C compiler options needed for large files... no
checking for _FILE_OFFSET_BITS value needed for large files... 64
./configure: line 9002: --variable=systemdsystemunitdir: command not found
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating alsactl/Makefile
config.status: creating alsactl/init/Makefile
config.status: creating alsamixer/Makefile
config.status: creating amidi/Makefile
config.status: creating amixer/Makefile
config.status: creating m4/Makefile
config.status: creating po/Makefile.in
config.status: creating alsaconf/alsaconf
config.status: creating alsaconf/Makefile
config.status: creating alsaconf/po/Makefile
config.status: WARNING: 'alsaconf/po/Makefile.in' seems to ignore the --datarootdir setting
config.status: creating alsaucm/Makefile
config.status: creating aplay/Makefile
...
...
...
amixer.o: In function decode_tlv': /usr/src/alsa-utils-1.0.27.2/amixer/amixer.c:559: undefined reference to snd_pcm_chmap_name'
collect2: error: ld returned 1 exit status
make[1]: *** [amixer] Error 1
make: *** [all-recursive] Error 1
@
not sure what the errors means

I ran the following commands
root@debian32wheezy:/usr/src/alsa-lib-1.0.27.2# amidi -l
Dir Device Name
IO hw:1,0,0 AXE-FX II MIDI 1

I ran a MIDI when
amidi -p hw:1,0,0 -d
and displayed the SYSEX received from the AXE-FX in the terminal window

So ALSA MIDI works. It's the dev part that is not installed properly

[SGaist]

You might be linking the system libasound2 rather that the one you just created.

What I suggested is to run Qt's configure with the -v option so you can see exactly what failure you have for ALSA.

[PALYGAP]

Solved it by removing the line :

   PKGCONFIG += alsa

from the project file vmpk.pro in the "linux*:!simulator" section.

and changed
LIBS += -lpthread
to
LIBS += -lpthread -lasound

Then there was a compile error on this line :

   QDir dir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);

and I changed it to :

    QDir dir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);

This is due to a changes in the Qt API for version 5.

It is now working and receiving MIDI input from an external MIDI keyboard. Super.

Thanks SGaist for the help.

[PALYGAP]

Two more thing.

At one point I had the message "cannot find -lGL".

Solved it by installing : sudo apt-get install libglu1-mesa-dev -y

Running in debug mode, I get these messages :
Starting /home/eric/Downloads/build-vmpk-Desktop_Qt_5_3_0_GCC_32bit-Debug/vmpk...
file "/home/eric/Downloads/build-vmpk-Desktop_Qt_5_3_0_GCC_32bit-Debug/../share/vmpk/gmgsxg.ins" not readable.
OpenGL Warning: XGetVisualInfo returned 0 visuals for 0x96e1e40
OpenGL Warning: Retry with 0x8002 returned 0 visuals
OpenGL Warning: XGetVisualInfo returned 0 visuals for 0x96e1e40
OpenGL Warning: Retry with 0x8002 returned 0 visuals
OpenGL Warning: XGetVisualInfo returned 0 visuals for 0x96e1e40
OpenGL Warning: Retry with 0x8002 returned 0 visuals
OpenGL Warning: glXGetFBConfigAttrib for 0x96e1e40, failed to get XVisualInfo
OpenGL Warning: XGetVisualInfo returned 0 visuals for 0x96e1e40
OpenGL Warning: Retry with 0x8002 returned 0 visuals
OpenGL Warning: glXGetFBConfigAttrib for 0x96e1e40, failed to get XVisualInfo
OpenGL Warning: XGetVisualInfo returned 0 visuals for 0x96e1e40
OpenGL Warning: Retry with 0x8002 returned 0 visuals
OpenGL Warning: glXGetFBConfigAttrib for 0x96e1e40, failed to get XVisualInfo
OpenGL Warning: XGetVisualInfo returned 0 visuals for 0x96e1e40
OpenGL Warning: Retry with 0x8002 returned 0 visuals
OpenGL Warning: glXGetFBConfigAttrib for 0x96e1e40, failed to get XVisualInfo
OpenGL Warning: XGetVisualInfo returned 0 visuals for 0x96e1e40
OpenGL Warning: Retry with 0x8002 returned 0 visuals
OpenGL Warning: glXGetFBConfigAttrib for 0x96e1e40, failed to get XVisualInfo
OpenGL Warning: XGetVisualInfo returned 0 visuals for 0x96e1e40
OpenGL Warning: Retry with 0x8002 returned 0 visuals
OpenGL Warning: glXGetFBConfigAttrib for 0x96e1e40, failed to get XVisualInfo
OpenGL Warning: XGetVisualInfo returned 0 visuals for 0x96e1e40
OpenGL Warning: Retry with 0x8002 returned 0 visuals
OpenGL Warning: glXGetFBConfigAttrib for 0x96e1e40, failed to get XVisualInfo
OpenGL Warning: XGetVisualInfo returned 0 visuals for 0x96e1e40
OpenGL Warning: Retry with 0x8002 returned 0 visuals
OpenGL Warning: glXGetFBConfigAttrib for 0x96e1e40, failed to get XVisualInfo

.... I'll have to investigate that.