From 3647d89269bc0b0d9cc0e56da3bf33d69c4ca91a Mon Sep 17 00:00:00 2001
From: Eman Resu <elevenaka11@gmail.com>
Date: Tue, 29 Sep 2026 22:32:34 -0400
Subject: [PATCH] lib.fixed-points.toExtension: inherit binding

---
 lib/fixed-points.nix | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/fixed-points.nix b/lib/fixed-points.nix
index 699b2bc39513..450b142e7d1d 100644
--- a/lib/fixed-points.nix
+++ b/lib/fixed-points.nix
@@ -509,13 +509,16 @@ rec {
     :::
   */
   toExtension =
+    let
+      inherit (lib) isFunction;
+    in
     f:
-    if lib.isFunction f then
+    if isFunction f then
       final: prev:
       let
         fPrev = f prev;
       in
-      if lib.isFunction fPrev then
+      if isFunction fPrev then
         # f is (final: prev: { ... })
         f final prev
       else