--- tcg/region.c.orig
+++ tcg/region.c
@@ -684,7 +684,7 @@
      */
     prot = PROT_NONE;
     flags = MAP_PRIVATE | MAP_ANONYMOUS;
-#ifdef CONFIG_DARWIN
+#if defined(CONFIG_DARWIN) && defined(MAP_JIT)
     /* Applicable to both iOS and macOS (Apple Silicon). */
     if (!splitwx) {
         flags |= MAP_JIT;