MATLAB: Mex compiler compatibility on Mac OS

MATLABmex compiler

I am trying to compile mex file using matlab2014b, java8 and Xcode7 by command

"mex CC='gcc' LD='gcc' -largeArrayDims -maci64 CFLAGS='$CFLAGS -m64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -mmacosx-version-min=10.4 -Wall' LDFLAGS='$LDFLAGS -Wl,-syslibroot,/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -mmacosx-version-min=10.4' -outdir "build/maci64/" -c "svm_struct_api.c"".

But I got the message "No supported compiler or SDK was found. For options, visit http://www.mathworks.com/support/compilers/R2014b/maci64.html."

Could you please help me on this issue?

With best regards.

Best Answer

http://uk.mathworks.com/matlabcentral/answers/243868-mex-can-t-find-compiler-after-xcode-7-update-r2015b

Related Solutions

MATLAB: Compiling Mex files in Mac 10.9

Kamil - I observed the same error when running Make (from the terminal window, in the folder /Users/geoff/.../svm-struct-matlab-1.0) as make ARCH=maci64

 ...
 Building with 'Xcode with Clang'.
 clang: warning: no such sysroot directory: '/Developer/SDKs/MacOSX10.6.sdk'
 /Users/geoff/.../svm-struct-matlab-1.0/svm_struct_api.c:20:10: fatal error: 'stdio.h' file not 
 found #include <stdio.h>
 ...

The Makefile has the following lines (of interest)

 # Mac OS X Intel 32
 ifeq ($(ARCH),maci)
 SDKROOT ?= /Developer/SDKs/MacOSX10.6.sdk

This folder doesn't exist on my computer (OS X 10.8.5). Since MEX has been configured to use 'Xcode with Clang', the equivalent SDKs directory is

 /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs

Within this directory, I have

 MacOSX10.8.sdk
 MacOSX10.9.sdk

So I changed the line in the Makefile from the

 SDKROOT ?= /Developer/SDKs/MacOSX10.6.sdk

 SDKROOT ?= /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk

and then re-ran make ARCH=maci64 and the svm_struct_learn.mexmaci64 file was built. (Running, in the Command Window of MATLAB, test_svm_struct_learn was successful).

I suggest you try updating the Makefile, in a similar manner as described above, with the appropriate MacOSX10.X.sdk.

MATLAB: Installation of SVMstruct: mex command not found

Pia - did you download svm-struct-matlab-1.2, or a previous version? Have you built MEX functions before, or is this the first time?

The README_MATLAB.txt indicates that To compile this software use the included Makefile. It should work out of the box on Linux and Mac OS X provided that MATLAB MEX program is in the command line path. So just issue make...

It then goes on to say that if MEX is not on the command line, the path can be specified as

 make MEX=<MATLABROOT>/bin/mex

where MATLABROOT is the path returned by running matlabroot in the MATLAB Command Window.

If that doesn't work, it may be that you don't have a C/C++ compiler installed. In the MATLAB Command Window, type

 mex -setup

What do you see when you do this? When I run the above (on OS X 10.8.5), I see

 MEX configured to use 'Xcode with Clang' for C language compilation.

I had to download Xcode in order to compile C/C++ functions. See Mac OS X supported compilers for details.

Best Answer

Related Solutions

MATLAB: Compiling Mex files in Mac 10.9

MATLAB: Installation of SVMstruct: mex command not found

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