--- src/util/blake3/blake3_dispatch.c.orig	2026-08-16 22:43:19.000000000 -0600
+++ src/util/blake3/blake3_dispatch.c	2026-08-16 22:43:38.000000000 -0600
@@ -51,10 +51,18 @@
 #if defined(_MSC_VER)
   return _xgetbv(0);
 #else
+#if defined(__APPLE__) && defined(__i386__)
+// This is expecting _xgetbv in some form to exist so that features can be
+// checked for, but on older Intel CPUs it does not, so return feature can
+// not be used by returning zero always.
+// https://stackoverflow.com/questions/72522885/are-the-xgetbv-and-cpuid-checks-sufficient-to-guarantee-avx2-support
+return 0;
+#else
   uint32_t eax = 0, edx = 0;
   __asm__ __volatile__("xgetbv\n" : "=a"(eax), "=d"(edx) : "c"(0));
   return ((uint64_t)edx << 32) | eax;
 #endif
+#endif
 }
 
 static void cpuid(uint32_t out[4], uint32_t id) {