Error compiling mex with R2013b in OSX 10.9

Question

David 2014-2-24

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/118696-error-compiling-mex-with-r2013b-in-osx-10-9

评论： Tarek 2014-5-3

Hi everyone, I want to get started using mex files so I started reading a book on it and can't even get the very first examples to compile. The code is below.

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#include "mex.h"
void mexFunction(int nlhs, mxArray* plhs[], int nrhs, const mxArray *prhs[])
{
mexPrintf("Hello, mex!\n");
}

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And I get the following error message.

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In file included from helloMex.cpp:1:
In file included from /Applications/MATLAB_R2013b.app/extern/include/mex.h:58:
In file included from /Applications/MATLAB_R2013b.app/extern/include/matrix.h:252:
/Applications/MATLAB_R2013b.app/extern/include/tmwtypes.h:831:9: error: 
        unknown type name 'char16_t'
  typedef char16_t CHAR16_T;
          ^
  1 error generated.
      mex: compile of ' "helloMex.cpp"' failed.

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I am running MATLAB 2013b under OS X 10.9 and I have Xcode 5.1 beta 5 installed. I'm wondering if this is a bug due to the beta version of Xcode, but I was wondering if anyone else has seen this problem. Any thoughts welcome.

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Ken Atwell 2014-2-24

A stab in the dark: If you rename HelloMex.cpp to HelloMex.c (that is, C compilation rather then C++), what happens?

Bob 2014-3-18

A different question up here at TMW Answers related to compilation issues suggested downgrading Xcode to v5.02, from 5.1. I just did this (MATLAB 2012b and OS X 10.9.2) and ... it worked. Old versions are in: developer.apple.com/ Good luck!

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Answer 1

Jon C 2014-4-15

1
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https://ww2.mathworks.cn/matlabcentral/answers/118696-error-compiling-mex-with-r2013b-in-osx-10-9#answer_133517

编辑：Jon C 2014-4-17

在 MATLAB Online 中打开

Rather than downgrading Xcode, there are a few solutions listed on this page. The first thing to try if you can use C++ rather than just C is to add

-std=c++11

to CXXFLAGS in your current mexopts.sh.

Or if you have to use C only or can't enable C++11, try one of the alternative solutions given here. One way that seems to work is adding this to the `mex` command line:

-Dchar16_t=UINT16_T