* idris_support: fix environ for macOS
* Add test that touches the new implementation of environ
---------
Co-authored-by: Sergey Fedorov <barracuda@macos-powerpc.org>
Co-authored-by: Mathew Polzin <matt.polzin@gmail.com>
* [ re #2742 ] Count no. processors online rather than configured
Seems there might be some oddities with what is reported when, e.g.
reporting the maximum number of processors supported by the currently
installed motherboard, regardless of which processor is socketed.
* [ #2754 ] Update CHANGELOG
```
IDRIS2_VERIFY(cond, message_format, ...)
```
When condition is false, crash.
Used in native functions where correct error handling is hard or
not impossible.
For example, `malloc` rarely fails, but if it fails, better crash
with clear error message than spend time debugging null pointer
dereference.
* add `strerror` function
* move `getErrno` to `System.Errno`
* use `strerror` in `Show FileError`
* on node there's no access to `strerror`, so `strerror` just converts the number to string
