The aged perlPackages.NetSNMP library does not support modern SHA algorithms for authentication.
It's possible to enable support for these newer protocols with a patch.
The patch is taken from the OpenBSD ports tree:
https://github.com/openbsd/ports/blob/master/net/p5-Net-SNMP/patches/patch-lib_Net_SNMP_Security_USM_pm
It enables support for SHA 224, 256, 384, and 512.
Tests are also include in the patch for these additional algorithms.
I have no idea what this escape sequence even is, but it breaks the nix parser with cryptic errors if not used in a comment.
A friend let me know MacOS is prone to input weird spaces, not sure if that is the source.
Candidates were located and created with:
chr="$(echo -e '\xc2\xa0')"; rg -F "$chr" -l | xe sd -F "$chr" " "
There are some examples left, most being example output from `tree` in various markdown documents, some patches which we can't really touch, and `pkgs/tools/nix/nixos-render-docs/src/tests/test_commonmark.py` which I'm not sure if should be addressed
In preparation for the deprecation of `stdenv.isX`.
These shorthands are not conducive to cross-compilation because they
hide the platforms.
Darwin might get cross-compilation for which the continued usage of `stdenv.isDarwin` will get in the way
One example of why this is bad and especially affects compiler packages
https://www.github.com/NixOS/nixpkgs/pull/343059
There are too many files to go through manually but a treewide should
get users thinking when they see a `hostPlatform.isX` in a place where it
doesn't make sense.
```
fd --type f "\.nix" | xargs sd --fixed-strings "stdenv.is" "stdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "stdenv'.is" "stdenv'.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "clangStdenv.is" "clangStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "gccStdenv.is" "gccStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "stdenvNoCC.is" "stdenvNoCC.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "inherit (stdenv) is" "inherit (stdenv.hostPlatform) is"
fd --type f "\.nix" | xargs sd --fixed-strings "buildStdenv.is" "buildStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "effectiveStdenv.is" "effectiveStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "originalStdenv.is" "originalStdenv.hostPlatform.is"
```
After discussing on Matrix in the [#staging](https://matrix.to/#/#staging:nixos.org) room, I'm merging this as-is without waiting for changes to the `enableParallelBuilding = false;` line.
There are several in-the-wings PRs (one from @emilazy) that attempt to bring load-limit, which is a more sensible accounting of the work that a derivation is doing, into Nix itself. If and when that lands, we'll be able to just set `enableParallelBuilding = true;` again, without any specific casing around the `NIX_BUILD_CORES` stdenv variable.
