New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/pull/24026#issuecomment-733714502

Comment:
@Piraty I don't think this is functional on ARM glibc either...

Their `outb` and `inb` are purely compatibility symbols:

```void
outb (unsigned char b, unsigned long int port)
{
}
compat_symbol (libc, outb, outb, GLIBC_2_4);
```