From 0e3a6203747b6c3c24dec34cb3df5b829bf47100 Mon Sep 17 00:00:00 2001
From: Lisanna Dettwyler <lisanna.dettwyler@gmail.com>
Date: Mon, 26 Jan 2026 12:13:20 -0500
Subject: [PATCH] Fix build-hook setting being clobbered

settings.buildHook.setDefault was running after nix.conf was parsed,
causing whatever value settings.buildHook had to be clobbered.
Re-arrange the logic so that the default is set before nix.conf is
parsed, so that custom build hooks can be used by specifying them in
nix.conf.

Signed-off-by: Lisanna Dettwyler <lisanna.dettwyler@gmail.com>
---
 src/nix/main.cc | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/nix/main.cc b/src/nix/main.cc
index 811d1c495a6..cbee5cde8af 100644
--- a/src/nix/main.cc
+++ b/src/nix/main.cc
@@ -374,10 +374,6 @@ void mainWrapped(int argc, char ** argv)
     }
 #endif
 
-    initNix();
-    initGC();
-    flakeSettings.configureEvalSettings(evalSettings);
-
     /* Set the build hook location
 
        For builds we perform a self-invocation, so Nix has to be
@@ -390,6 +386,10 @@ void mainWrapped(int argc, char ** argv)
             "__build-remote",
         });
 
+    initNix();
+    initGC();
+    flakeSettings.configureEvalSettings(evalSettings);
+
 #ifdef __linux__
     if (isRootUser()) {
         try {