From 7aa90db876d9a402d07a8c85107375b55e143166 Mon Sep 17 00:00:00 2001
From: 06kellyjac <dev@j-k.io>
Date: Thu, 10 Jul 2025 10:10:19 +0100
Subject: [PATCH] conftest: allow for building completions when cross-compiling

---
 pkgs/by-name/co/conftest/package.nix | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/pkgs/by-name/co/conftest/package.nix b/pkgs/by-name/co/conftest/package.nix
index aab67c86bce5..5446094dedec 100644
--- a/pkgs/by-name/co/conftest/package.nix
+++ b/pkgs/by-name/co/conftest/package.nix
@@ -1,10 +1,12 @@
 {
   lib,
+  stdenv,
   buildGoModule,
   fetchFromGitHub,
   installShellFiles,
   versionCheckHook,
   writableTmpDirAsHomeHook,
+  buildPackages,
 }:
 
 buildGoModule (finalAttrs: {
@@ -29,12 +31,20 @@ buildGoModule (finalAttrs: {
     installShellFiles
   ];
 
-  postInstall = ''
-    installShellCompletion --cmd conftest \
-      --bash <($out/bin/conftest completion bash) \
-      --fish <($out/bin/conftest completion fish) \
-      --zsh <($out/bin/conftest completion zsh)
-  '';
+  postInstall =
+    let
+      conftest =
+        if stdenv.buildPlatform.canExecute stdenv.hostPlatform then
+          placeholder "out"
+        else
+          buildPackages.conftest;
+    in
+    ''
+      installShellCompletion --cmd conftest \
+        --bash <(${conftest}/bin/conftest completion bash) \
+        --fish <(${conftest}/bin/conftest completion fish) \
+        --zsh <(${conftest}/bin/conftest completion zsh)
+    '';
 
   nativeCheckInputs = [
     writableTmpDirAsHomeHook