From 1311a5e1ba692cd38ecb80d710be359e94519ff9 Mon Sep 17 00:00:00 2001
From: David McFarland <corngood@gmail.com>
Date: Tue, 25 Aug 2026 11:26:52 -0300
Subject: [PATCH] dotnet-hook: fix substitution of null runtime

Some packages explitly use `dotnet-runtime = null` when outputting
self-contained executables.  This results in the hook script containing:

  dotnetRuntime=@dotnetRuntime@
---
 pkgs/build-support/dotnet/build-dotnet-module/hook/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/build-support/dotnet/build-dotnet-module/hook/default.nix b/pkgs/build-support/dotnet/build-dotnet-module/hook/default.nix
index e1f7cd816719..58a89b855e70 100644
--- a/pkgs/build-support/dotnet/build-dotnet-module/hook/default.nix
+++ b/pkgs/build-support/dotnet/build-dotnet-module/hook/default.nix
@@ -9,7 +9,7 @@
 makeSetupHook {
   name = "dotnet-hook";
   substitutions = {
-    dotnetRuntime = dotnet-runtime;
+    dotnetRuntime = lib.defaultTo "" dotnet-runtime;
     wrapperPath = lib.makeBinPath [
       which
       coreutils