Add compile error on using unsupported features on SPIRV

Cargo.toml

@@ -38,10 +38,12 @@ transform-types = []
 libm = ["num-traits/libm"]
 
 [dependencies]
-bytemuck = { version = "1.4", optional = true, default-features = false }
 mint = { version = "0.5", optional = true, default-features = false }
 # enabled by the libm feature, required when building no_std
 num-traits = { version = "0.2.14", optional = true, default-features = false }
+
+[target.'cfg(not(target_arch = "spirv"))'.dependencies]
+bytemuck = { version = "1.4", optional = true, default-features = false }
 rand = { version = "0.7", optional = true, default-features = false }
 serde = { version = "1.0", optional = true, features = ["derive"] }
 

src/lib.rs

@@ -201,6 +201,21 @@ The minimum supported version of Rust for `glam` is `1.36.0`.
 
 #![cfg_attr(not(feature = "std"), no_std)]
 
+#[cfg(all(target_arch = "spirv", feature = "glam-assert"))]
+compile_error!("`glam-assert` feature is not supported when building for SPIRV");
+
+#[cfg(all(target_arch = "spirv", feature = "debug-glam-assert"))]
+compile_error!("`debug-glam-assert` feature is not supported when building for SPIRV");
+
+#[cfg(all(target_arch = "spirv", feature = "serde"))]
+compile_error!("`serde` feature is not supported when building for SPIRV");
+
+#[cfg(all(target_arch = "spirv", feature = "rand"))]
+compile_error!("`rand` feature is not supported when building for SPIRV");
+
+#[cfg(all(target_arch = "spirv", feature = "bytemuck"))]
+compile_error!("`bytemuck` feature is not supported when building for SPIRV");
+
 #[macro_use]
 mod macros;