txt: ## dist_zef-lizmat-Unix-errno.md
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  # NAME
  
  Unix::errno - Provide transparent access to errno
  
  # SYNOPSIS
  
  ```
  use Unix::errno;  # exports errno, set_errno
  
  set_errno(2);
  
  say errno;              # No such file or directory (errno = 2)
  say "failed: {errno}";  # failed: No such file or directory
  say +errno;             # 2
  
  ```
  
  # DESCRIPTION
  
  This module provides access to the `errno` variable that is available on all Unix-like systems. Please note that in a threaded environment such as Raku is, the value of `errno` is even more volatile than it has been already. For now, this issue is ignored.
  
  # CAVEATS
  
  Since setting of any "extern" variables is not supported yet by `NativeCall`, the setting of `errno` is faked. If `set_errno` is called, it will set the value only in a shadow copy. That value will be returned as long as the underlying "real" errno doesn't change (at which point that value will be returned.
  
  # AUTHOR
  
  Elizabeth Mattijsen [liz@raku.rocks](mailto:liz@raku.rocks)
  
  Source can be located at: <https://github.com/lizmat/Unix-errno> . Comments and Pull Requests are welcome.
  
  If you like this module, or what I’m doing more generally, committing to a [small sponsorship](https://github.com/sponsors/lizmat/) would mean a great deal to me!
  
  # COPYRIGHT AND LICENSE
  
  Copyright 2018, 2021, 2024, 2025 Elizabeth Mattijsen
  
  This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.
  