Specifying a different mexsh

Hi,

I'm new to mex-files. I'm trying to compile a file written in C in folder A, with a header in some folder B, using a custom mexopts_custom.sh file that was handed to me. How can I specify that I want to use mexopts_custom.sh when I run the mex command?

>>mex myFile.c

Also, trying on an sample mex-file

>>mex timestwo.c

produces the following error:

xcodebuild: error: SDK "macosx10.7" cannot be located.
xcrun: error: unable to find utility "clang", not a developer tool or in PATH

      mex: compile of ' "timestwo.c"' failed.

I am using OS X 10.8.5, MATLAB 2013b (8.2.0.701) and Xcode 5.0 with

If anyone could shed some light on this, I'd really appreciate it.

Cordially,

[Royi Avital]

Is build 8.2.0.701 the is the release version of MATLAB 8.2 (R2013b)?

Answer 1

[Harsheel]

You can provide your custom options file via the -f flag:

    >>mex myFile.c -f mexopts_custom.sh  

    % assuming the options file is in the same folder as myFile.c else provide the full path to   
    % the options file.

Source: MexOptions

As a side note, since you're using Xcode 5.0, replace all instances of "10.7" in the option file with "10.8". However if your custom options file works just fine, then you can ignore this statement.

[Nicolas]

Thanks for the quick reply Harsheel, really appreciate it. One more thing, a header I'm including is in a different folder, what switch should be used?

I tried

mex myfile.c -f mexopts_custom.sh -LheaderPath/header.h

to no avail: it produces an error saying file 'header.h' was not found.

Thanks a bunch,

[Harsheel]

you're welcome Nicolas. Please refer to the following link for your question:

useOptionCapital_i

Answer 2

[Ken Atwell]

Xcode 5 removed the 10.7 SDK that MEX is looking for. See:

http://www.mathworks.com/support/solutions/en/data/1-OAMYBZ/

[Nicolas]

Thanks Ken! This is one of the reasons I wanted to use a custom mexopts shell script.