metal: build shaders in Makefile instead

Author: grovesNL

Makefile

@@ -39,7 +39,7 @@ else
 endif
 
 
-.PHONY: all check quad quad-wasm test doc reftests benches
+.PHONY: all check quad quad-wasm test doc reftests benches metal-shaders
 
 all: check test
 
@@ -78,3 +78,8 @@ quad:
 quad-wasm:
 	cd examples && cargo +nightly build --target wasm32-unknown-unknown --features gl --bin quad && wasm-bindgen ../target/wasm32-unknown-unknown/debug/quad.wasm --out-dir ../examples/generated-wasm --web
 
+metal-shaders:
+	cd ./src/backend/metal/shaders && \
+	xcrun -sdk macosx metal -c *.metal -mmacosx-version-min=10.11 && \
+	xcrun -sdk macosx metallib *.air -o gfx_shaders.metallib && \
+	rm *.air

src/backend/metal/build.rs

@@ -451,7 +451,7 @@ pub struct ServicePipes {
 
 impl ServicePipes {
     pub fn new(device: &metal::DeviceRef) -> Self {
-        let data = include_bytes!(concat!(env!("OUT_DIR"), "/gfx_shaders.metallib"));
+        let data = include_bytes!("./../shaders/gfx_shaders.metallib");
         let library = device.new_library_with_data(data).unwrap();
 
         let copy_buffer = Self::create_copy_buffer(&library, device);