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compiling a 32-bit C Shared Library

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Hi all,
I need to compile a 32-bit C shared library to deploy some Matlab Code. I have installed Matlab 2015b on a 32-bit Machine running windows 10. However, I am having trouble locating a compatible 32-bit compiler. Does anyone have any pointers to a (preferably) free compiler that would be recognized by this version of Matlab. I have tried searching for the recommended compilers given under specifically "Microsoft Windows SDK 7.1 Available at no charge; requires .NET Framework 4." but to no avail. Any tips would be much appreciated.
Best wishes,

Accepted Answer

Walter Roberson
Walter Roberson on 24 May 2018
SDK 7.1 is your only option. It is, however, not easy to install on Windows 10. You could experiment with the work-around described at
John Anderson
John Anderson on 25 May 2018
Hi all,
So the installation I had attempted of Windows SDK 7.1 has a known problem in that the compilers are sometimes uninstalled during the installation. This requires you to run this patch
However, this fails unless .NET 4.7.2 is installed. I had thought I had already done this but must have been in a previous life. Anyway I installed from here
And then successfully installed the patch.
Now Matlab detects the alternative compiler.
mex -setup
To choose a different C compiler, select one from the following:
lcc-win32 mex -setup:'C:\Program Files\MATLAB\R2015b\bin\win32\mexopts\lcc-win32.xml' C
Microsoft Windows SDK 7.1 (C) mex -setup:C:\Users\John\AppData\Roaming\MathWorks\MATLAB\R2015b\mex_C_win32.xml C
And I am able to compile a 32-bit C Shared library ... finally.
Thanks again for your initial tip Walter.
Best wishes,

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