Add libwgpu-native

recipes/recipes_emscripten/libwgpu-native/build.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+PATH=$(tr ':' '\n' <<<"$PATH" | grep -vE '/\.(cargo|rustup)/bin' | paste -sd:)
+export PATH EMSDK="${EMSCRIPTEN_FORGE_EMSDK_DIR}"
+export PATH="${EMSDK}/upstream/bin:${PATH}"
+
+EMCC=$(command -v emcc)
+EMSCRIPTEN_SYSTEM="${EMSDK}/upstream/emscripten/system"
+
+rustup target add wasm32-unknown-emscripten
+export CC="${EMCC}"
+export CXX="${EMCC}++"
+export AR="$(command -v emar)"
+export RANLIB="$(command -v emranlib)"
+
+BINDGEN_ARGS="--target=wasm32-unknown-emscripten -I${EMSCRIPTEN_SYSTEM}/include -I${EMSCRIPTEN_SYSTEM}/include/compat -I${EMSCRIPTEN_SYSTEM}/include/libc -I${EMSCRIPTEN_SYSTEM}/lib/libc/musl/include -I${EMSCRIPTEN_SYSTEM}/lib/libc/musl/arch/emscripten -Iffi/webgpu-headers -I."
+export BINDGEN_EXTRA_CLANG_ARGS="${BINDGEN_ARGS}"
+export BINDGEN_EXTRA_CLANG_ARGS_wasm32_unknown_emscripten="${BINDGEN_ARGS}"
+
+# Emscripten side modules contain Rust-mangled exports, which are valid Wasm
+# names but not JavaScript identifiers.  Do not validate those names as JS.
+sed -i 's/if not n.isidentifier():/if not n.isidentifier() and not settings.SIDE_MODULE:/' \
+  "${EMSDK}/upstream/emscripten/tools/emscripten.py"
+
+# Cargo only forwards linker arguments from RUSTFLAGS.
+export RUSTFLAGS="${RUSTFLAGS:+${RUSTFLAGS} }-C link-arg=-sSIDE_MODULE=2"
+
+mkdir -p .cargo
+cat > .cargo/config.toml << 'EOF'
+[target.wasm32-unknown-emscripten]
+linker = "emcc"
+EOF
+
+sed -i '/^\[features\]/a fragile-send-sync-non-atomic-wasm = ["wgc/fragile-send-sync-non-atomic-wasm", "hal/fragile-send-sync-non-atomic-wasm"]' Cargo.toml
+
+cargo build --release \
+  --target wasm32-unknown-emscripten \
+  --no-default-features \
+  --features wgsl,gles,fragile-send-sync-non-atomic-wasm
+
+mkdir -p ${PREFIX}/lib ${PREFIX}/include/wgpu-native
+cp target/wasm32-unknown-emscripten/release/wgpu_native.wasm ${PREFIX}/lib/libwgpu_native.wasm
+
+cp ffi/webgpu-headers/webgpu.h ${PREFIX}/include/wgpu-native/
+cp ffi/wgpu.h ${PREFIX}/include/wgpu-native/

recipes/recipes_emscripten/libwgpu-native/recipe.yaml

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+context:
+  version: "29.0.1.1"
+
+package:
+  name: libwgpu-native
+  version: ${{ version }}
+
+source:
+- url: https://github.com/gfx-rs/wgpu-native/archive/refs/tags/v${{ version }}.tar.gz
+  sha256: 6008651e1d10022d4ded15b69405b4ba88577be5d623938ba98ad241b2cbf818
+- url: https://raw.githubusercontent.com/webgpu-native/webgpu-headers/main/webgpu.h
+  sha256: 2dc6334582e2a85fc81bd5b1dc1cc131b48da9f91b89075e2bd59b3f1c9f81c1
+  target_directory: ffi/webgpu-headers
+
+build:
+  number: 0
+  script: build.sh
+
+  dynamic_linking:
+    binary_relocation: false
+
+requirements:
+  build:
+  - rust-nightly
+  - emscripten_emscripten-wasm32
+  - clang
+  - libclang
+  - make
+
+tests:
+- package_contents:
+    files:
+    - lib/libwgpu_native.wasm
+    - include/wgpu-native/webgpu.h
+    - include/wgpu-native/wgpu.h
+
+about:
+  license: MIT OR Apache-2.0
+  license_file:
+  - LICENSE.MIT
+  - LICENSE.APACHE
+  summary: Native WebGPU implementation in Rust (emscripten-wasm32)
+  homepage: https://github.com/gfx-rs/wgpu-native
+
+extra:
+  recipe-maintainers:
+  - Alex-PLACET