0 CPUs on a Raspberry Pi Compute Module 5 Development Kit

Compiling and running **run-unixbench.sh** on a [Raspberry Pi Compute Module 5 Development Kit](https://www.raspberrypi.com/products/cm5-dev-kit/) with 4 G of RAM produces the following result:
```
Benchmark Run: 0 CPUs; 1 parallel process
```

However `cat /proc/cpuinfo` shows that there are 4 "virtual" processors.
