From 0c78b185b4273b1abab05a3657493c3475472ec6 Mon Sep 17 00:00:00 2001
From: linear cannon <dev@linear.network>
Date: Sun, 19 Dec 2021 01:25:32 -0800
Subject: [PATCH] update BLAKE2_PACKED macro with a non-GCCism fallback

---
 libarchive/archive_blake2.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libarchive/archive_blake2.h b/libarchive/archive_blake2.h
index dd6fe6fe5..8f6b5e922 100644
--- a/libarchive/archive_blake2.h
+++ b/libarchive/archive_blake2.h
@@ -21,8 +21,10 @@
 
 #if defined(_MSC_VER)
 #define BLAKE2_PACKED(x) __pragma(pack(push, 1)) x __pragma(pack(pop))
-#else
+#elif defined(__GNUC__)
 #define BLAKE2_PACKED(x) x __attribute__((packed))
+#else
+#define BLAKE2_PACKED(x) _Pragma("pack 1") x _Pragma("pack 0")
 #endif
 
 #if defined(__cplusplus)
-- 
2.47.2