Vendor dependencies for 0.3.0 release

vendor/ash/build.rs

@@ -0,0 +1,24 @@
+fn main() {
+    #[cfg(feature = "linked")]
+    {
+        use std::env;
+
+        let target_family = env::var("CARGO_CFG_TARGET_FAMILY").unwrap();
+        let target_pointer_width = env::var("CARGO_CFG_TARGET_POINTER_WIDTH").unwrap();
+
+        println!("cargo:rerun-if-env-changed=VULKAN_SDK");
+        if let Ok(var) = env::var("VULKAN_SDK") {
+            let suffix = match (&*target_family, &*target_pointer_width) {
+                ("windows", "32") => "Lib32",
+                ("windows", "64") => "Lib",
+                _ => "lib",
+            };
+            println!("cargo:rustc-link-search={var}/{suffix}");
+        }
+        let lib = match &*target_family {
+            "windows" => "vulkan-1",
+            _ => "vulkan",
+        };
+        println!("cargo:rustc-link-lib={lib}");
+    }
+}