Haxelib from Homebrew on macOS High Sierra 10.13.6: "Could not link to neko"

[algorev]

On my machine (Haxe 3.4.7 and Haxelib 3.3.0 from Homebrew on macOS High Sierra, Neko 2.2.0 from Homebrew too), Haxelib prefixes the output of every haxelib run command with the text:

Could not link to neko.

I have also observed that it makes it impossible to build projects with OpenFL, as build commands:

$ haxelib run openfl build macos

give the following output:

Could not link to neko.

Warning: Ignoring requested haxelib "openfl" version "3.6.1" (version "8.4.1" was already included)

Could not link plugin to process (CFFILoader.h 203) - with neko