problems with C/C++ compiler. Matlab R2022b

Hello.

I downloaded the suggested app (cannot honestly remember the name) and then in the command window i typed:

mex -setup

mex -setup C

but still it keeps on giving the the error:

A C/C++ compiler has not been selected with mex -setup

Any suggestions?

[Jorge Garcia Garcia]

Just remembered the addon: MinGw-w64

Answer 1

[Tushar]

Hi,

This can be because of the reason that you don't have a compiler installed on your system.

So, first you need to install the compiler.

To install the MinGW-w64 compiler, use the Add-Ons menu.

• On the MATLAB Home tab, in the Environment section, click Add-Ons > Get Add-Ons.
• Search for MinGW or select from Features.

If you only have the MinGW compiler installed on your system, the "mex" command automatically chooses MinGW. Go to the next step. However, if you have multiple C or C++ compilers, use the below command to choose MinGW.

mex -setup

Also, it might be possible that you already have a compiler installed, but it's installation path might not be correct, so you can also have a look at the same.

Now you can build the MEX files, like:

mex myProgram.c

Hope it helps!

[Jorge Garcia Garcia]

It did help!!! much appreciate it!

[Tushar]

@Jorge Garcia Garcia Thank you! If you find this answer helpful, please mark it as accepted so others can benefit from it too.