Problem with mex setup for FORTRAN

I got a error message with

mex -setup FORTRAN.

Error using mex No supported compiler or SDK was found. For options, visit http://www.mathworks.com/support/compilers/R2014a/win64.

I am using MATLAB R2014a in Windows 64 bit. I have Intel Visual Fortran Composer XE 2013 in Microsoft Visual Studio 2010 Shell and in Microsoft Visual Studio 2008 Professional Edition.

I tried with C language and do not have any problem.

Thanks. Durga

[Geoff Hayes]

Durga - do you have all of the support tools found at MATLAB and fortran given your use of Intel Visual Fortran Composer XE 2013?

[Durga Lal Shrestha]

Supported and Compatible Compilers – Release 2014a shows that Intel Visual Fortran Composer XE 2013 is supported in MATLAB R2014a. But in my case I do not understand why I cannot setup mex for FORTRAN.

[Geoff Hayes]

What happens if you just run mex -setup? Do you see a list of available compilers?

[Durga Lal Shrestha]

This is what I got with

mex -setup

MEX configured to use 'Microsoft Visual C++ 2008 (C)' for C language compilation. Warning: The MATLAB C and Fortran API has changed to support MATLAB variables with more than 2^32-1 elements. In the near future you will be required to update your code to utilize the new API. You can find more information about this at: http://www.mathworks.com/help/matlab/matlab_external/upgrading-mex-files-to-use-64-bit-api.html.

To choose a different language, select one from the following:

mex -setup C++ 
mex -setup FORTRAN

Answer 1

[Geoff Hayes]

Durga - This is more of a Fortran for Mac answer, but as the behaviour is like yours, I think that you will have to do something similar.

I downloaded the Fortran compiler for my Mac (GNU gfortan), installed the package, ran

 mex -setup FORTRAN

and observed a similar error as you

 Error using mex
 No supported compiler or SDK was found. For options, visit   
 http://www.mathworks.com/support/compilers/R2014a/maci64.

Running the same with verbose mode enabled I observed

 >> mex -setup -v FORTRAN

 Verbose mode is on.
 ... Looking for compiler 'gfortran' ...
 ... Executing command 'which gfortran' ...No.
 ... Looking for file '/usr/local/bin/gfortran' ...Yes.
 ... Looking for folder '/usr/local/bin' ...Yes.
 ... Executing command 'which gfortran' ...No.
 ... Looking for file '/usr/local/bin/gfortran' ...Yes.
 ... Executing command 'gfortran -print-file-name=libgfortran.dylib' ...No.
 Did not find installed compiler 'gfortran'.
 Error using mex
 No supported compiler or SDK was found. For options, visit   
 http://www.mathworks.com/support/compilers/R2014a/maci64.

So the setup runs the command which gfortran. This is not the MATLAB function which but the UNIX version to locate the executable (MATLAB is probably executing system('which gfortran') to find it). The UNIX which uses the PATH environment variable to find the file it is looking for. This suggests that I have to update the PATH variable with the path to gfortran.

If I update the PATH environment variable

 setenv('PATH', [getenv('PATH') ':/usr/local/gfortran/bin']);

and then re-run the setup, I observe

 >> mex -setup -v FORTRAN
 Verbose mode is on.
 ... Looking for compiler 'gfortran' ...
 ... Executing command 'which gfortran' ...Yes ('/usr/local/gfortran/bin/gfortran').
 <etc.>
 Found installed compiler 'gfortran'.
 Copied options file from '/Applications/MATLAB_R2014a.app/bin/maci64/mexopts/gfortran.xml' to  
 '/Users/geoff/.matlab/R2014a/mex_FORTRAN_maci64.xml'.
 MEX configured to use 'gfortran' for FORTRAN language compilation.

The above is not ideal because I have to run the setenv('PATH', [getenv('PATH') ':/usr/local/gfortran/bin']); command, so an alternative to this (that updates the PATH once) needs to be found.

So you should try the same - re-run the mex setup with verbose mode enabled and observe the output. You may need to update a similar PATH environment variable with the location of your Fortran compiler executable.

[Durga Lal Shrestha]

Thanks Geoff for the help.

I ran mex setup with verbose mode. First it could not find environment variable VS100COMNTOOLS. Then I set evenvironment variable VS100COMNTOOLS to 'C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\Tools'.

>> mex -setup -v FORTRAN
Verbose mode is on.
... Looking for compiler 'Intel Visual Fortran Composer XE 2011 with Microsoft SDK 7.1' ...
... Looking for environment variable 'IFORT_COMPILER12' ...No.
Did not find installed compiler 'Intel Visual Fortran Composer XE 2011 with Microsoft SDK 7.1'.
... Looking for compiler 'Intel Visual Fortran Composer XE 2011 with Microsoft Visual Studio 2008' ...
... Looking for environment variable 'IFORT_COMPILER12' ...No.
Did not find installed compiler 'Intel Visual Fortran Composer XE 2011 with Microsoft Visual Studio 2008'.
... Looking for compiler 'Intel Visual Fortran Composer XE 2011 with Microsoft Visual Studio 2010' ...
... Looking for environment variable 'IFORT_COMPILER12' ...No.
Did not find installed compiler 'Intel Visual Fortran Composer XE 2011 with Microsoft Visual Studio 2010'.
... Looking for compiler 'Intel Visual Fortran Composer XE 2013 with Microsoft Visual Studio 2008' ...
... Looking for environment variable 'IFORT_COMPILER14' ...Yes ('C:\Program Files (x86)\Intel\Composer XE 2013 SP1\').
... Looking for file 'C:\Program Files (x86)\Intel\Composer XE 2013 SP1\Bin\intel64\ifort.exe' ...Yes.
... Looking for folder 'C:\Program Files (x86)\Intel\Composer XE 2013 SP1' ...Yes.
... Looking for registry setting 'HKLM\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v7.1' InstallationFolder ...No.
... Looking for registry setting 'HKCU\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v7.1' InstallationFolder ...No.
Did not find installed compiler 'Intel Visual Fortran Composer XE 2013 with Microsoft Visual Studio 2008'.
... Looking for compiler 'Intel Visual Fortran Composer XE 2013 with Microsoft Visual Studio 2010' ...
... Looking for environment variable 'IFORT_COMPILER14' ...Yes ('C:\Program Files (x86)\Intel\Composer XE 2013 SP1\').
... Looking for file 'C:\Program Files (x86)\Intel\Composer XE 2013 SP1\Bin\intel64\ifort.exe' ...Yes.
... Looking for folder 'C:\Program Files (x86)\Intel\Composer XE 2013 SP1' ...Yes.
... Looking for environment variable 'VS100COMNTOOLS' ...Yes ('C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\Tools').
... Looking for file 'C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64\cl.exe' ...No.
Did not find installed compiler 'Intel Visual Fortran Composer XE 2013 with Microsoft Visual Studio 2010'.
... Looking for compiler 'Intel Visual Fortran Composer XE 2013 with Microsoft Visual Studio 2012' ...
... Looking for environment variable 'IFORT_COMPILER14' ...Yes ('C:\Program Files (x86)\Intel\Composer XE 2013 SP1\').
... Looking for file 'C:\Program Files (x86)\Intel\Composer XE 2013 SP1\Bin\intel64\ifort.exe' ...Yes.
... Looking for folder 'C:\Program Files (x86)\Intel\Composer XE 2013 SP1' ...Yes.
... Looking for registry setting 'HKLM\SOFTWARE\Microsoft\VisualStudio\SxS\VS7' 11.0 ...No.
... Looking for registry setting 'HKCU\SOFTWARE\Microsoft\VisualStudio\SxS\VS7' 11.0 ...No.
... Looking for registry setting 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VS7' 11.0 ...No.
... Looking for registry setting 'HKCU\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VS7' 11.0 ...No.
Did not find installed compiler 'Intel Visual Fortran Composer XE 2013 with Microsoft Visual Studio 2012'.
Error using mex
No supported compiler or SDK was found. For options, visit  http://www.mathworks.com/support/compilers/R2014a/win64.

Now it seems it could not find C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64\cl.exe'. But c1.exe is in c:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin\amd64\

I have two versions of Microsoft Visual Studios:

1. Microsoft Visual Studio 2008 with Microsoft Visual C++ 2008, Microsoft Visual C# 2008, Intel® Visual Fortran Composer XE 2013 SP1 etc.

2. Microsoft Visual Studio 2010 with only Intel® Visual Fortran Composer XE 2013 SP1

I thought it should find the compiler in the Intel Visual Fortran Composer XE 2013 with Microsoft Visual Studio 2008. I

[Geoff Hayes]

Unfortunate that your combination of Visual Studio 2008 and Fortran Composer is not a valid one. Could you install Visual C++ 2010? This may get you past the point where

 ... Looking for file 'C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64\cl.exe' …No.

is looking for cl.exe. Or, try creating this folder and copying your version of cl.exe (from c:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin\amd64\) to this one. This may allow you to get a little further.

[Durga Lal Shrestha]

Copying those folders from Microsoft Visual Studio 9.0 to 10 passes that point, but

Looking for registry setting 'HKLM\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v7.0A' InstallationFolder ...No.
... Looking for registry setting 'HKCU\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v7.0A' InstallationFolder ...No.

It seems I need to install Windows SDK 7.1 and have tried but failed to install. I googled and found that I need to uninstall Microsoft Visual C++ 2010 before installing SDk ( <http://www.mathworks.com.au/matlabcentral/answers/95039-why-does-the-sdk-7-1-installation-fail-with-an-installation-failed-message-on-my-windows-system SDK 7.1 installation fail >

Now I give up fixing this issue in my pc as I found another pc in network where I can generate fortran mex file.

[Alec Jacobson]

I'm on Mac but after issuing

mex -setup -v FORTRAN

I only see

Verbose mode is on.
... Looking for compiler 'Intel Fortran Composer XE' ...
... Looking for environment variable 'IFORT_COMPILER17' ...No.
... Looking for environment variable 'IFORT_COMPILER16' ...No.
... Looking for environment variable 'IFORT_COMPILER15' ...No.
... Looking for environment variable 'IFORT_COMPILER14' ...No.
... Looking for environment variable 'IFORT_COMPILER13' ...No.
... Executing command 'which ifort' ...No.
Did not find installed compiler 'Intel Fortran Composer XE'.

And changing the PATH variable did not help. Any suggestions?

[Walter Roberson]

Alec Jacobson, see https://www.mathworks.com/matlabcentral/answers/338303-how-to-set-up-mex-with-gfortran-on-mac#answer_285758