mex -setp "Unable to complete successfully"

Question

Juan 2014-4-16

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https://ww2.mathworks.cn/matlabcentral/answers/126027-mex-setp-unable-to-complete-successfully

回答： Harsheel 2014-4-17

采纳的回答： Image Analyst

I am trying to to use mex but I cannot make it work.

I have Matlab 2013a installed in a Ubuntu 12.04 (64 bit). I also have gcc 4.6.3 insatalled.

No matter what I try wiht mex, but I always get the same error with no information:

>> mex

Error using mex (line 206)

Unable to complete successfully.

>> mex -setup

Error using mex (line 206)

Unable to complete successfully.

>> mex test_function.cxx

Error using mex (line 206)

Unable to complete successfully.

Any ideas?

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Ken Atwell 2014-4-17

在 MATLAB Online 中打开

Can you invoke gcc directly from MATLAB:

>> !gcc

Juan 2014-4-17

>>!gcc does nothign

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Answer 1

Image Analyst 2014-4-17

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When you type ver on the command line, do you see the compiler listed?

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Image Analyst 2014-4-17

Well then you need to purchase the MATLAB Compiler Toolbox.

Juan 2014-4-17

编辑：Juan 2014-4-17

that makes sense hehe.

I didn't know it was a separate toolbox.

Thanks

EDITED

Nope, that didn't work. However do I need the compiler library to use mex (I don't want to compile an .m file)?

I have even reinstalled but it still won't work. For now I will just compile the cxx function somewhere else

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Answer 2

Harsheel 2014-4-17

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No, you do not need MATLAB Compiler product to use the MEX function. If ">>mex -setup" is erroring out exactly the way you've mentioned above then that means your GCC may be wrongly installed on the system.

By the way, you need gcc 4.4.x, as gcc 4.6.3 is unsupported with R2013a. So first, install the correct version and make sure it's installed correctly by executing ">>!gcc --version" from inside MATLAB. If it shows the correct version then, try executing ">>mex -setup".