From df210da932c2cab9d3a80ee88c70611d77824a15 Mon Sep 17 00:00:00 2001
From: Wang Mingyu <wangmy@fujitsu.com>
Date: Wed, 18 Mar 2026 02:26:56 +0000
Subject: [PATCH] fix(swig): avoid clang GNUC pragma block before _lib.h

Clang defines __GNUC__, so the old guard emitted PRAGMA_* tokens before
they were defined, breaking builds on macOS/clang; move the block after
<_lib.h> and exclude clang while keeping the GCC<5 workaround.

Fixes: https://todo.sr.ht/~mcepl/m2crypto/392

Upstream-Status: Backport [git.sr.ht/~mcepl/m2crypto/commit/504ca8f438afb0f5041d2b5163e5f666a9a1b742.patch]

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
---
 src/SWIG/_m2crypto.i | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/SWIG/_m2crypto.i b/src/SWIG/_m2crypto.i
index d89d355..5426446 100644
--- a/src/SWIG/_m2crypto.i
+++ b/src/SWIG/_m2crypto.i
@@ -43,15 +43,18 @@ typedef unsigned __int64 uint64_t;
 %}
 
 %{
-#if defined __GNUC__ && __GNUC__ < 5
-PRAGMA_IGNORE_UNUSED_LABEL
-PRAGMA_WARN_STRICT_PROTOTYPES
-#endif
-
 #include <openssl/err.h>
 #include <openssl/rand.h>
 #include <_lib.h>
 
+/* _lib.h defines PRAGMA_* helpers; only needed for old GCC (clang defines
+ * __GNUC__ too, but doesn't need this workaround).
+ */
+#if defined(__GNUC__) && !defined(__clang__) && (__GNUC__ < 5)
+PRAGMA_IGNORE_UNUSED_LABEL
+PRAGMA_WARN_STRICT_PROTOTYPES
+#endif
+
 #include "compile.h"
 
 static PyObject *ssl_verify_cb_func;
-- 
2.43.0

