From 75c085f6c22aac3d29a279f908b08be51b61a174 Mon Sep 17 00:00:00 2001
From: David McFarland <corngood@gmail.com>
Date: Sat, 9 Mar 2024 17:32:31 -0400
Subject: [PATCH] dotnet: strip native symbols from runtime

This reduces the output size of dotnet_9.vmr from 4.2GiB to 1.9GiB.
---
 pkgs/development/compilers/dotnet/vmr.nix | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pkgs/development/compilers/dotnet/vmr.nix b/pkgs/development/compilers/dotnet/vmr.nix
index 36b75c40e6c8..c51791e32484 100644
--- a/pkgs/development/compilers/dotnet/vmr.nix
+++ b/pkgs/development/compilers/dotnet/vmr.nix
@@ -187,6 +187,14 @@ in stdenv.mkDerivation rec {
     substituteInPlace \
       src/runtime/src/native/libs/CMakeLists.txt \
       --replace-fail 'add_compile_options(-Weverything)' 'add_compile_options(-Wall)'
+
+    # strip native symbols in runtime
+    # see: https://github.com/dotnet/source-build/issues/2543
+    xmlstarlet ed \
+      --inplace \
+      -s //Project -t elem -n PropertyGroup \
+      -s \$prev -t elem -n KeepNativeSymbols -v false \
+      src/runtime/Directory.Build.props
   ''
   + lib.optionalString isLinux ''
     substituteInPlace \