[Neurodebian-users] Dependency trouble with matlab-psychtoolbox-3

[Mario Kleiner]

On 08/06/2014 06:28 AM, Yaroslav Halchenko wrote:
>
> On Wed, 06 Aug 2014, ella wufong wrote:
>
>>     hi!
>>     i'm attempting to get an Ubuntu + MATLAB + Psychtoolbox installation up
>>     and running for the very first time, as per this thread on the
>>     Psychtoolbox forums:
>>     [1]https://groups.yahoo.com/neo/groups/PSYCHTOOLBOX/conversations/topics/17908
>>     i have Ubuntu 14.04 LTS 64 bit installed, and MATLAB 2014a 64 bit.
>
>>     using the NeuroDebian repo i have also installed octave-psychtoolbox-3. so
>>     far so good.
>>     Mario then pointed me towards installing the matlab-psychtoolbox-3
>>     package, however this is where i am stuck:
>>     sudo apt-get install matlab-psychtoolbox-3
>>     Reading package lists... Done
>>     Building dependency tree
>>     Reading state information... Done
>>     Some packages could not be installed. This may mean that you have
>>     requested an impossible situation or if you are using the unstable
>>     distribution that some required packages have not yet been created
>>     or been moved out of Incoming.
>>     The following information may help to resolve the situation:
>
>>     The following packages have unmet dependencies:
>>      matlab-psychtoolbox-3 : Depends: matlab-psychtoolbox-3-nonfree (=
>>     3.0.11.20140705-1~nd+1) but it is not going to be installed
>>     E: Unable to correct problems, you have held broken packages.
>>     and if i then try:
>
>>     sudo apt-get install matlab-psychtoolbox-3-nonfree
>>     Reading package lists... Done
>>     Building dependency tree
>>     Reading state information... Done
>>     Some packages could not be installed. This may mean that you have
>>     requested an impossible situation or if you are using the unstable
>>     distribution that some required packages have not yet been created
>>     or been moved out of Incoming.
>>     The following information may help to resolve the situation:
>
>>     The following packages have unmet dependencies:
>>      matlab-psychtoolbox-3-nonfree : Depends: libglew1.9 but it is not
>>     installable
>>                                      Recommends: libfreenect0.1 but it is not
>>     installable
>>     E: Unable to correct problems, you have held broken packages.
>>     i'm guessing that this means that the matlab-psychtoolbox-3 package is
>>     currently out-of-date?
>>     any help with getting this to work would be much appreciated. amongst the
>>     researchers that i work with, i'm trying to lead the charge towards Linux
>>     and eventually Octave...
>
> well -- Octave one should work no-problem, with Matlab one (blame is
> mine since I haven't had time to implement install-time building of
> extensions and just distribute Mario's copies) we would need to figure
> it out...
>
> Mario -- you just staticly build-in GLEW, don't you?  so I could just
> drop dependency on libglew altogether for that matlab- package, or
> I have forgotten smth?
>

Yes, statically linked, so dropping the dependency for the Matlab mex 
files from me should work.

Although i wonder why the same problem doesn't happen with your octave 
mex files? Dependency on different glew version - probably whatever is 
the system default one? My Ubuntu 14.04 has libglew1.10 as current one. 
I have an old libglew1.9, but that seems to be a leftover from a 13.04 
installation and the package manager says it comes from: 
1.9.0-3~bnd1~nd13.04+1

So at some point it was part of NeuroDebian, apparently for 13.04.


> freenect -- would you mind rebuilding your extensions against freenect
> 0.2?  for some reason I have only uploaded 0.2 to Debian proper but not
> to NeuroDebian, and now users on bleeding edge Ubuntu releases with
> neuroDebian end up "bleeding".   Ella -- I will push a build of 0.1
> version of libfreenect for trusty tomorrow to NeuroDebian so we would
> have a quick resolution for that one at least...
>

Not sure about that. Old distros which we still support won't have 
freenect 0.2, no? My old Matlab build system definitely doesn't have it.

I'd do such a switch for the next beta, when the 3.0.12 series starts, 
so we can have one transition with changed dependencies/system 
requirements. I'd like to avoid touching 3.0.11 as much as possible, i 
really want to get rid of its maintenance, given that it is declared eol 
since April.

But iirc one can simply set a soft-link from freenect 0.1 to 0.2, and 
the mex files will work with it and gain some new functionality, e.g., 
XBOX for Window support.

-mario