kmod/configure-Detect-openssl-sm3-support.patch

From 1bb23d7f19d888fbdd96ae0fe929b7086713ef33 Mon Sep 17 00:00:00 2001
From: Michal Suchanek <msuchanek@suse.de>
Date: Tue, 18 Jul 2023 14:01:52 +0200
Subject: [PATCH 1/9] configure: Detect openssl sm3 support

Older openssl versions do not support sm3. The code has an option to
disable the sm3 hash but the lack of openssl support is not detected
automatically.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Link: https://lore.kernel.org/r/b97e20faa07e9e31c6eaf96683011aa24e80760c.1689681454.git.msuchanek@suse.de
Signed-off-by: Lucas De Marchi <lucas.de.marchi@gmail.com>
---
 configure.ac | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/configure.ac b/configure.ac
index 82a853289a83..e5bceeaa1722 100644
--- a/configure.ac
+++ b/configure.ac
@@ -123,6 +123,13 @@ AC_ARG_WITH([openssl],
 AS_IF([test "x$with_openssl" != "xno"], [
 	PKG_CHECK_MODULES([libcrypto], [libcrypto >= 1.1.0], [LIBS="$LIBS $libcrypto_LIBS"])
 	AC_DEFINE([ENABLE_OPENSSL], [1], [Enable openssl for modinfo.])
+	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#include <openssl/ssl.h>
+		int nid = NID_sm3;]])], [
+		AC_MSG_NOTICE([openssl supports sm3])
+	], [
+		AC_MSG_NOTICE([openssl sm3 support not detected])
+		CPPFLAGS="$CPPFLAGS -DOPENSSL_NO_SM3"
+	])
 ], [
 	AC_MSG_NOTICE([openssl support not requested])
 ])
-- 
2.42.0