HMM mex files needed execute privilenges

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Download and install with initPmtk3
2. Evaluate [a b] = hmmFit({randn(1,50)}, 4, 'gauss')

What is the expected output? What do you see instead?
Expect no output. Instead, error obtained:

??? Invalid MEX-file
'C:\Users\fasiha\Documents\MATLAB\pmtk3-read-only\toolbox\LatentVariableModels\h
mm\sub\hmmFwdBack.mexw64':
Access is denied.

Error in ==> hmmFitEm>estep at 68
    [gamma, alpha, beta, logp] = hmmFwdBack(pi, A, Bi);

Error in ==> emAlgo at 62
    [ess, ll] = estep(model, data);

Error in ==> hmmFitEm at 46
[model, loglikHist] = emAlgo(model, data, initFn, @estep, @mstep, EMargs{:});

Error in ==> hmmFit at 69
[model, loglikHist] = hmmFitEm(data, nstates, type, varargin{:});

What version / revision of the product are you using? On what operating system?

SVN checkout r2778, Windows7, Matlab 2011a. 

Please provide any additional information below.

I had Cygwin available, so in the directory 
"pmtk3-read-only/toolbox/LatentVariableModels/hmm/sub", I ran "chmod 755 
*.mex*" to add the execute bit on all mex files. This fixes the problem.

I am not sure how to do this without Cygwin, or if it affects anyone else on 
Windows using a current checked out. 

Original issue reported on code.google.com by wuzzyview on 10 Oct 2011 at 2:37

[GoogleCodeExporter]

The files are inheriting the permissions of the directory you're placing them 
in. You should be using the windows file permission mechanisms, (i.e. by right 
clicking on the parent folder). I strongly recommend against using cygwin to 
change file permissions on a windows machine as this could corrupt your ACL. 

This isn't really a PMTK issue as any file downloaded from the internet will 
have this same behavior. 

Original comment by mattbdun...@gmail.com on 10 Oct 2011 at 3:46

• Changed state: Invalid

[GoogleCodeExporter]

Moved to GitHub: https://github.com/probml/pmtk3/issues/34

Original comment by irosen on 4 Jan 2014 at 2:36