From 068e58f4cbe61abe49e46d62ca82982d72a98586 Mon Sep 17 00:00:00 2001
From: Yueh-Shun Li <shamrocklee@posteo.net>
Date: Fri, 3 Jul 2026 00:29:17 +0800
Subject: [PATCH] doc/fixed-point-arguments: make examples
 callPackage-compatible

---
 doc/build-helpers/fixed-point-arguments.chapter.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/doc/build-helpers/fixed-point-arguments.chapter.md b/doc/build-helpers/fixed-point-arguments.chapter.md
index 8de6636083e2..190b14d52235 100644
--- a/doc/build-helpers/fixed-point-arguments.chapter.md
+++ b/doc/build-helpers/fixed-point-arguments.chapter.md
@@ -3,6 +3,10 @@
 `stdenv.mkDerivation` also accepts a [fixed-point function](#function-library-lib.fixedPoints.fix) instead of a plain attribute set:
 
 ```nix
+{
+  stdenv,
+  fetchurl,
+}:
 stdenv.mkDerivation (finalAttrs: {
   pname = "hello";
   version = "2.12";
@@ -37,6 +41,10 @@ Define a build helper named `mkLocalDerivation` that builds locally without usin
 Use `lib.extendMkDerivation`:
 
 ```nix
+{
+  lib,
+  stdenv,
+}:
 lib.extendMkDerivation {
   constructDrv = stdenv.mkDerivation;
   excludeDrvArgNames = [