It is not a bug.

I use pacman not only in archlinux, but also in windows' msys2. msys2 has two scripts, named makepkg-mingw and pacboy. makepkg-mingw is a program which set correct environment vars then call makepkg. pacboy is just a wrapper of pacman -- `pacboy -S ripgrep:x` is a short for `pacman -S mingw-w64-x64-ripgrep`. So they can use same shell completions with makepkg/pacman.

I think there are three methods:

1. change the upstream, just <https://gitlab.archlinux.org/pacman/pacman/-/blob/master/scripts/completion/zsh_completion.in#L1>:

```diff
diff --git a/zsh_completion.in b/zsh_completion.in
index f65edeb..9fbd7f3 100644
--- a/zsh_completion.in
+++ b/zsh_completion.in
@@ -1,4 +1,4 @@
-#compdef pacman pacman.static=pacman pacman-conf pacman-key makepkg
+#compdef pacman pacman.static=pacman pacman-conf pacman-key makepkg makepkg-mingw=makepkg pacboy=pacman

# copy this file to /usr/share/zsh/site-functions/_pacman
```

2. Let the downstream add a patch.

3. Let user add `compdef _pacman makepkg-mingw=makepkg pacboy=pacman` in their zshrc

I don't know which method the most of the people want?

<https://github.com/msys2/MSYS2-packages/issues/2996>

Not offense. Just some proposals. Thanks!