CODEWITHSUNDEEP
matlabmex
f. c.
f. c.

Reputation: 1135

Error when building C mex files in Matlab: permission denied

I have tried to compile C code in matlab.

I tested with the simple example code in the matlabroot/extern/examples subfolders. I did the following:

mex -setup
copyfile(fullfile(matlabroot,'extern','examples','mex', 'yprime.c'), './');
mex -v -g yprime.c

The command line outputs the following information, which I guess should be a path problem, but I don't know how to solve it. 

**************************************************************************
 Warning: Neither -compatibleArrayDims nor -largeArrayDims is selected. 
           Using -compatibleArrayDims. In the future, MATLAB will require
           the use of -largeArrayDims and remove the -compatibleArrayDims
           option. For more information, see:
           http://www.mathworks.com/help/matlab/matlab_external/upgrading-mex-files-to-use-64-bit-api.html
**************************************************************************

find: /.DocumentRevisions-V100: Permission denied
find: /.fseventsd: Permission denied
find: /.Spotlight-V100: Permission denied
find: /.Trashes: Permission denied
cfind: /dev/fd/3: Not a directory
find: /dev/fd/4: Not a directory
find: /Library/Application Support/Apple/ParentalControls/Users: Permission denied
find: /Library/PreferencePanes/TeXDistPrefPane.prefPane: Permission denied
find: /Library/Server/Mail/Data/mta: Permission denied
find: /Library/Server/Mail/Data/spool/active: Permission denied
find: /Library/Server/Mail/Data/spool/bounce: Permission denied
find: /Library/Server/Mail/Data/spool/corrupt: Permission denied
find: /Library/Server/Mail/Data/spool/defer: Permission denied
find: /Library/Server/Mail/Data/spool/deferred: Permission denied
find: /Library/Server/Mail/Data/spool/flush: Permission denied
find: /Library/Server/Mail/Data/spool/hold: Permission denied
find: /Library/Server/Mail/Data/spool/incoming: Permission denied
find: /Library/Server/Mail/Data/spool/maildrop: Permission denied
find: /Library/Server/Mail/Data/spool/private: Permission denied
find: /Library/Server/Mail/Data/spool/public: Permission denied
find: /Library/Server/Mail/Data/spool/saved: Permission denied
find: /Library/Server/Mail/Data/spool/trace: Permission denied

Anyone can help?

Upvotes: 0

Views: 1579

Answers (1)

Geovany A. Borges
Geovany A. Borges

Reputation: 11

Probably the mex file has been called before by any instance of Matlab. In this case, clear all variables at each instance using "clear all" command and try again. Also, some other process of your operating system may be locking the mex file. Try to find out who is locking that file and unlock it.

Upvotes: 1

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