Undefined references in Druntime for microcontrollers

[IGotD-]

On Monday, 19 October 2020 at 06:25:17 UTC, Severin Teona wrote:
>
> - 'munmap'
> - 'clock_gettime'
> - `pthread_mutex_trylock'
> etc.
>

These are typically calls found in a Unix system, Linux for 
example. In a microcontroller you will likely not support these 
at all except clock_gettime.

You need to dissect druntime a bit further to remove these and/or 
find a replacement that does the same thing.