Mex file compiling issue

Hello, I have a problem with mex.

When I try to run a test c file

mex timestwo.c

I get:

Building with 'gcc'.

Error using mex

'/home/aidin/.../timestwo.mexa64' is not a MEX file. For more information, see File is not a MEX file.

My specs:

MATLAB Version: 9.13.0.2166757 (R2022b) Update 4

MATLAB License Number: 722433

Operating System: Linux 5.15.94-1-MANJARO #1 SMP PREEMPT Tue Feb 14 19:45:58 UTC 2023 x86_64

Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode

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MATLAB Version 9.13 (R2022b)

Simulink Version 10.6 (R2022b)

Symbolic Math Toolbox Version 9.2 (R2022b)

gcc version 8.5.0 (GCC)

Answer 1

[Aidin Biibosunov]

The problem had to do with compiler versions and OS(Manjaro).

I found the solution here:

https://wiki.archlinux.org/title/MATLAB

Answer 2

[Tamir Suliman]

Your MEX file was not created successfully. This can happen if there were errors during the compilation process. To troubleshoot this issue, you can try

Check if the C file timestwo.c compiles without errors

Could be also errors in the C code, incorrect compiler settings or incompatibilities between the Matlab version and the compiler.