From 613de9d9cceb25e7eaf29f08fb20c64b0a5bcfbf Mon Sep 17 00:00:00 2001
From: John Ericson <John.Ericson@Obsidian.Systems>
Date: Wed, 17 Sep 2025 15:21:08 -0400
Subject: [PATCH] Add missing `#pragma once`

---
 src/libutil/include/nix/util/memory-source-accessor.hh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/libutil/include/nix/util/memory-source-accessor.hh b/src/libutil/include/nix/util/memory-source-accessor.hh
index a04d1d347..98c193800 100644
--- a/src/libutil/include/nix/util/memory-source-accessor.hh
+++ b/src/libutil/include/nix/util/memory-source-accessor.hh
@@ -1,3 +1,6 @@
+#pragma once
+///@file
+
 #include "nix/util/source-path.hh"
 #include "nix/util/fs-sink.hh"
 #include "nix/util/variant-wrapper.hh"