Can't build JackMix

[Louigi Verona]

Hey guys!
Tried to install JackMix.

Here's what the terminal says:

scons: Reading SConscript files ...
Configuring qt4muc...
/home/louigi/Desktop/jackmix-0.4.1/admin/qt4muc.py:341: DeprecationWarning: os.popen3 is deprecated. Use the subprocess module.
out = os.popen3( app )
Checking if the output of 'moc -v' contains 'Qt 4.' (cached) yes
Checking if the output of 'uic -v' contains '4.' (cached) yes
Checking if the output of 'rcc -v' contains '4.' (cached) yes
Done. Will define a more or less automatic environment to do all the qt-specific stuff.
Checking for C header file stdio.h... yes
Checking for C++ header file iostream... no

[GarryO]

Hi, Louigi. Do you have libstdc++versionnumber-dev installed?

[Louigi Verona]

Checked - yep, it is installed.

[GarryO]

mmm! well that was the most obvious one. I've just tried to build jackmix here and it didn't fail where yours did. A file search here turns up a few options: do you have libboost-iostreams-x.xx-dev installed ?

[Louigi Verona]

This wasn't installed. Installed - tried building JackMix - same error.

[GarryO]

the only other development library i have installed that includes a file "iostream" is libglibmm-x.x-dev.

[Louigi Verona]

Eh. Unfortunately, this did not help - I still get the same error.

[GarryO]

Did you try running ldconfig (as root) after installing those libs? (not usually necessary, though, unless you're installing from source.)

Sorry I couldn't be of more help, Louigi.
One final suggestion: consider subscribing to the linux.audio.users list:
http://lists.linuxaudio.org/mailman/lis ... audio-user
I access it via http://news.gmane.org/

Jackmix's author Arnold Krille is a regular poster on the list. If he can't help you ...

all the best, G.

[kaimerra]

This may be too basic, but it never hurts. did you install the "build-essential" package? That usually covers most C/Cpp libs.

Also, SCons sometimes caches build data. I forget what the option is off the top of my head, but its something like --no-cache , but you can find it in the help/manpage.

[raboof]

I can reproduce this error. When a scons check fails, you can check cache/config.log to see what exactly it tried. It reads:

Code: Select all

file /tmp/jackmix-0.4.1/SConstruct,line 18:
        Configure(confdir = cache)
scons: Configure: Checking for C header file stdio.h...
cache/conftest_0.c <-
  |
  |#include <stdio.h>
  |
  |
gcc -o cache/conftest_0.o -c cache/conftest_0.c
scons: Configure: yes

scons: Configure: Checking for C++ header file iostream...
cache/conftest_1.cpp <-
  |
  |#include <iostream>
  |
  |
g++ -o cache/conftest_1.o -c - W a l l " " - W e r r o r " " - g " " - f p i c cache/conftest_1.cpp
g++: W: No such file or directory
g++: a: No such file or directory
g++: l: No such file or directory
g++: l: No such file or directory
g++:  : No such file or directory
g++: W: No such file or directory
g++: e: No such file or directory
g++: r: No such file or directory
g++: r: No such file or directory
g++: o: No such file or directory
g++: r: No such file or directory
g++:  : No such file or directory
g++: g: No such file or directory
g++:  : No such file or directory
g++: f: No such file or directory
g++: p: No such file or directory
g++: i: No such file or directory
g++: c: No such file or directory
g++: cannot specify -o with -c or -S with multiple files
scons: Configure: no

The interesting bit is:

Code: Select all

g++ -o cache/conftest_1.o -c - W a l l " " - W e r r o r " " - g " " - f p i c cache/conftest_1.cpp

There seem to be spurious spaces inserted here. SConstruct contains:

Code: Select all

env['CXXFLAGS']+="-Wall -Werror -g -fpic"

Adding a

Code: Select all

print env['CXXFLAGS']

reveals this seems to be the culprit: it prints the string above with extra spaces. My python is rather rusty, but it appears there's something icky going on with the '+=' operator - perhaps it decides to turn the variable into a real 'character array' instead of a string or something. Insert rant about explicit type systems here . Changing the line above into the following takes care of the problem for me:

Code: Select all

env['CXXFLAGS'] = env['CXXFLAGS'] + " -Wall -Werror -g -fpic"

Perhaps this has something to do with the python version used - mine is 2.6.2.

[Louigi Verona]

The developer (Arnold) emailed me the link to the working version. He also said he will not be working on JackMix anymore but focus on a more general matrix mixing project.

http://www.arnoldarts.de/drupal/files/d ... 4.2.tar.gz
This version compiled fine.

In case anyone's interested

[raboof]

The developer (Arnold) emailed me the link to the working version. He also said he will not be working on JackMix anymore

Any reason this link isn't on the jackmix site anymore? sounds useful.

but focus on a more general matrix mixing project.

Interesting - any links yet?

[Louigi Verona]

Yeah, he said something is wrong with his hosting and he can't update the site )

Nope, no links he left. I guess not a lot is ready yet.

Although without midi control that app to me is useless.