From b9cf69dcd123933cc7edbd3c959ec861764f7dcb Mon Sep 17 00:00:00 2001
From: Abhi Upadhyay <abhi.upadhyay@berkeley.edu>
Date: Tue, 24 Mar 2026 23:40:17 -0400
Subject: [PATCH] fix: link CoreGraphics framework for Metal device detection

MTLCreateSystemDefaultDevice() returns None when CoreGraphics is not
linked, causing a panic (swap_remove on empty vec) during Metal device
initialization. This affects fresh clones on macOS where nothing else
pulls in CoreGraphics.
---
 cake-core/build.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cake-core/build.rs b/cake-core/build.rs
index 040080ce..94893433 100644
--- a/cake-core/build.rs
+++ b/cake-core/build.rs
@@ -1,4 +1,8 @@
 fn main() {
+    #[cfg(feature = "metal")]
+    {
+        println!("cargo:rustc-link-lib=framework=CoreGraphics");
+    }
     #[cfg(feature = "vulkan")]
     {
         println!("cargo::rerun-if-changed=src/backends/vulkan/ops.wgsl");