--- a/src/cpu_features.c	2026-04-25 12:12:01.711859890 +0000
+++ b/src/cpu_features.c	2026-04-25 12:11:02.446325252 +0000
@@ -26,7 +26,7 @@
 int cpu_supports_avx512f ()  { return 0; }
 int cpu_supports_avx512vl () { return 0; }
 
-#else
+#elif defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) || defined(_M_X64)
 static inline void cpuid (u32 leaf, u32 subleaf, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
 {
   __cpuid_count (leaf, subleaf, *eax, *ebx, *ecx, *edx);
@@ -140,6 +140,17 @@
 
   return (ebx & (1u << 31)) != 0;
 }
+
+#else
+
+// Fallback for other architectures (PowerPC, MIPS, etc.)
+int cpu_supports_sse2 ()     { return 0; }
+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; }
+
 #endif
 
 int cpu_chipset_test ()