Make compile error in 3.0.x branch

[Alan DeKok]

On Mar 24, 2021, at 8:07 AM, nabble at felix.world wrote:
> i don't want to open a useless issue on github so the question here. 
> 
> The current 3.0.x branch get's a compile error on ubuntu as shown in your test 
> https://github.com/FreeRADIUS/freeradius-server/runs/2169587583#step:12:1675
> 
> I just want to ask if you're aware of it?

  I didn't check the build status.  I've pushed a fix.

  Alan DeKok.