`nextflow` is no build by compiling from source instead of using the
downloaded release file. This improves the overall accesibility
(`version` will be shown on https://search.nixos.org/packages?query=nextflow)
and allows to add & run tests more easily.
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"
```
Without the change `nixpkgs` exposes unevaluatable attribute as:
$ nix build --no-link -f. perlInterpreters.perl536.perlOnBuild
error: attribute 'perl536' missing
at pkgs/development/interpreters/perl/interpreter.nix:207:37:
206| perlOnBuildForBuild = override pkgsBuildBuild.${perlAttr};
207| perlOnBuildForHost = override pkgsBuildHost.${perlAttr};
| ^
208| perlOnBuildForTarget = override pkgsBuildTarget.${perlAttr};
Did you mean one of perl538 or perl540?
The interpreter depends on presence of `perl536` attribute which wa
removed recently.
