From 4201c0ff3fd75e09025d515c427f85f9fec89621 Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Tue, 5 Apr 2022 22:27:35 +0200
Subject: [PATCH] src/eXtl_dtls.c: fix build with libressl >= 3.4.1

Fix the following build failure with libressl >= 3.4.1 which provides
SSL_set0_rbio() since
https://github.com/libressl-portable/openbsd/commit/c99939f9665a9c3c648682b4987df46600b70efc:

In file included from eXtl_dtls.c:82:
/home/autobuild/autobuild/instance-4/output-1/host/x86_64-buildroot-linux-musl/sysroot/usr/include/openssl/ssl.h:1272:6: note: previous declaration of 'SSL_set0_rbio' was here
 1272 | void SSL_set0_rbio(SSL *s, BIO *rbio);
      |      ^~~~~~~~~~~~~
eXtl_dtls.c: In function 'SSL_set0_rbio':
eXtl_dtls.c:108:17: error: invalid use of incomplete typedef 'SSL' {aka 'struct ssl_st'}
  108 |   BIO_free_all(s->rbio);
      |                 ^~

Fixes:
 - http://autobuild.buildroot.org/results/dfafdbf71b31fbda1b5ba491ac35239af4a20aa2

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
[Upstream status: sent to amoizard@antisip.com]
---
 src/eXtl_dtls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/eXtl_dtls.c b/src/eXtl_dtls.c
index 07c0dc2..d0bd7dc 100644
--- a/src/eXtl_dtls.c
+++ b/src/eXtl_dtls.c
@@ -102,7 +102,7 @@
 #define RANDOM "random.pem"
 #define DHFILE "dh1024.pem"
 
-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
+#if OPENSSL_VERSION_NUMBER < 0x10100000L || (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x3040100L)
 
 static void SSL_set0_rbio(SSL *s, BIO *rbio) {
   BIO_free_all(s->rbio);
-- 
2.35.1