From 95705171d53680fe3aef50350642251098d57399 Mon Sep 17 00:00:00 2001
From: Tony Arcieri <bascule@gmail.com>
Date: Wed, 24 Apr 2024 08:21:42 -0600
Subject: [PATCH] cpufeatures: fix macOS build

The "sm4" token wasn't being handled. To fix the bleeding, this adds it
but hardcoded to disabled.

See build failure here: https://github.com/RustCrypto/utils/actions/runs/8818083683/job/24206057206?pr=1065
---
 cpufeatures/src/aarch64.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cpufeatures/src/aarch64.rs b/cpufeatures/src/aarch64.rs
index 2305d898..4248a754 100644
--- a/cpufeatures/src/aarch64.rs
+++ b/cpufeatures/src/aarch64.rs
@@ -117,6 +117,9 @@ macro_rules! check {
                 && $crate::aarch64::sysctlbyname(b"hw.optional.armv8_2_sha3\0")
         }
     };
+    ("sm4") => {
+        false
+    };
 }
 
 /// Apple helper function for calling `sysctlbyname`.