From c8d81016caacdc2b954bbedabb1804bc2e8223f3 Mon Sep 17 00:00:00 2001
From: Jens Steube <jens.steube@gmail.com>
Date: Wed, 4 Jun 2025 10:41:24 +0200
Subject: [PATCH] Fix compile error on apple silicon

---
 include/cpu_features.h |  3 +++
 src/cpu_features.c     | 13 ++++++++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/include/cpu_features.h b/include/cpu_features.h
index e7630fc80..f583ed9bc 100644
--- a/include/cpu_features.h
+++ b/include/cpu_features.h
@@ -7,7 +7,10 @@
 #define HC_CPU_FEATURES_H
 
 #include <stdio.h>
+
+#if defined(__x86_64__) || defined(_M_X64)
 #include <cpuid.h>
+#endif
 
 // SIMD detection
 
diff --git a/src/cpu_features.c b/src/cpu_features.c
index 2f104a044..cf00a8438 100644
--- a/src/cpu_features.c
+++ b/src/cpu_features.c
@@ -7,6 +7,16 @@
 #include "types.h"
 #include "cpu_features.h"
 
+#if defined(__aarch64__) || defined(__arm64__)
+
+int cpu_supports_sse2 ()     { return 1; }
+int cpu_supports_ssse3 ()    { return 0; }
+int cpu_supports_xop ()      { return 0; }
+int cpu_supports_avx2 ()     { return 0; }
+int cpu_supports_avx512f ()  { return 0; }
+int cpu_supports_avx512vl () { return 0; }
+
+#else
 static inline void cpuid (u32 leaf, u32 subleaf, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
 {
   __cpuid_count (leaf, subleaf, *eax, *ebx, *ecx, *edx);
@@ -28,7 +38,7 @@ int cpu_supports_sse2 ()
 {
   u32 eax, ebx, ecx, edx;
 
-  cpuid(1, 0, &eax, &ebx, &ecx, &edx);
+  cpuid (1, 0, &eax, &ebx, &ecx, &edx);
 
   return (edx & bit_SSE2) != 0;
 }
@@ -120,6 +130,7 @@ int cpu_supports_avx512vl ()
 
   return (ebx & (1u << 31)) != 0;
 }
+#endif
 
 int cpu_chipset_test ()
 {