build steps

scripts/build-windows.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+# Build the Windows (Desktop) target: native GDExtension + managed C# DLLs.
+# Run from the repo root.
+set -euo pipefail
+
+REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$REPO_ROOT"
+
+# Pull submodules if missing.
+if [ ! -f "thirdparty/leanclr/CMakeLists.txt" ]; then
+    git submodule update --init --recursive
+fi
+
+# Re-apply the LeanCLR NotImplemented patch if a fresh submodule overwrote it.
+if grep -q "LEANCLR_FATAL_ON_RAISE_NOT_IMPLEMENTED_ERROR 1" \
+        thirdparty/leanclr/src/runtime/build_config.h 2>/dev/null; then
+    echo "[build-windows] Re-applying leanclr NotImplemented patch..."
+    sed -i 's/LEANCLR_FATAL_ON_RAISE_NOT_IMPLEMENTED_ERROR 1/LEANCLR_FATAL_ON_RAISE_NOT_IMPLEMENTED_ERROR 0/' \
+        thirdparty/leanclr/src/runtime/build_config.h
+fi
+
+# Configure CMake (first pass — fetches godot-cpp via FetchContent).
+cmake -S . -B build-master -DCMAKE_BUILD_TYPE=Debug
+# Generate bindings (needs the just-fetched extension_api.json).
+python3 tools/binding_generator/generate_bindings.py \
+    --api build-master/_deps/godot-cpp-src/gdextension/extension_api.json
+# Re-configure so add_library sees the generated cpp, then build.
+cmake -S . -B build-master -DCMAKE_BUILD_TYPE=Debug
+cmake --build build-master --config Debug --target leanclr_godot
+
+# Managed C#.
+dotnet msbuild managed/GodotSharpCompat/GodotSharpCompat.csproj -p:Configuration=Debug
+dotnet msbuild project/Game.csproj -p:Configuration=Debug
+
+echo "[build-windows] Done. Run with: \"/path/to/Godot\" --path project"