Summary

aarch64-apple-tvos and aarch64-apple-tvos-sim are stable Rust tier-3 targets installable via plain rustup target add — no -Z build-std needed. But miniquad currently misses tvOS from every target_os = \"ios\" cfg guard, so a tvOS build fails to compile.

This PR widens the Apple-family gates so tvOS reuses the iOS event loop (native::ios::run), UIKit link, Objective-C runtime, and Metal storage-mode selection. No new tvOS-specific code is added — the same iOS surface is compiled and dispatched for tvOS.

Files

• Cargo.toml — pull objc-rs on tvOS as well.
• src/lib.rs — start() dispatch and apple_view_ctrl(). Without the dispatch widen, start() returns immediately on tvOS (the enclosing app exits voluntarily right after launch).
• src/native.rs — pub mod apple, pub mod ios, and the NativeDisplayData::view_ctrl field + its initializer.
• src/native/apple/frameworks.rs — UIKit link (GLKit stays iOS-only since tvOS has no OpenGL ES).
• src/graphics/metal.rs — UNIFORM_BUFFER_ALIGN selection and the two MTLResourceOptions::CPUCacheModeWriteCombined branches.

Verification

cargo build against all five Apple targets:

• aarch64-apple-darwin — clean
• aarch64-apple-ios — clean
• aarch64-apple-ios-sim — clean
• aarch64-apple-tvos — now builds
• aarch64-apple-tvos-sim — now builds

A downstream game (CHOMP, macroquad + miniquad + rodio) using this branch renders correctly on the tvOS Simulator — Metal draw calls, MetalKit view attachment, audio, and asset loading all work. The Rust runtime is complete.

Not in scope (deliberate)

• Input. miniquad's iOS event loop reacts to UITouch on the MTKView. On tvOS, touch events only arrive from the Siri Remote's touch surface; menu / D-pad navigation goes through UIPress + the focus engine and is not wired here. An app built with this patch will render but won't accept remote-native input yet.
• App-level scaffolding. Info.plist scene manifest, main.m bridging, asset catalogs, LaunchScreen setup — all app-owned and out of scope for miniquad itself.
• Metal alignment on Apple Silicon tvOS sim. Existing iOS cfg (target_arch = \"x86_64\" picks the 256-byte alignment) is preserved verbatim for tvOS. Same known-imperfect gate, no attempt to fix here.

Related

Two other Apple-family cfg oversights in the stack, each getting the same shape of fix:

• raphamorim/objc-rs#3 — Apple runtime cfg widen (blocks tvOS link with Undefined symbol: _objc_msg_lookup until it lands)
• not-fl3/macroquad#1056 — load_file CWD chdir for tvOS (silently missing bundled assets otherwise)

Each PR stands on its own; the CHOMP tvOS build only becomes runnable end-to-end after all three land.