From b925b3e3fc6771171602323b45fbe9fb8fc90369 Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Fri, 29 May 2026 19:38:47 +0200
Subject: [PATCH] FFI/MacOS: Fix calling convention for enums.

Thanks to Sergey Kaplun. #1455
---
 src/lj_ccall.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lj_ccall.c b/src/lj_ccall.c
index 2446ed13..c89d9760 100644
--- a/src/lj_ccall.c
+++ b/src/lj_ccall.c
@@ -1091,7 +1091,7 @@ static int ccall_set_args(lua_State *L, CTState *cts, CType *ct,
     if (CCALL_ALIGN_STACKARG) {  /* Align argument on stack. */
       MSize align = (1u << ctype_align(ccall_struct_align(cts, d))) - 1;
 #if LJ_TARGET_ARM64 && LJ_TARGET_OSX
-      isva = 1;
+      isva = ctype_isstruct(d->info);
 #endif
       if (rp || (CCALL_PACK_STACKARG && isva && align < CTSIZE_PTR-1))
 	align = CTSIZE_PTR-1;
-- 
2.47.3