Fix build for OpenSSL 3.0.0 . Bug 2810

diff --git a/src/src/tls-openssl.c b/src/src/tls-openssl.c
index 830978e042bf54aa58f555feafb21a47d27a6fe2..512f5412ed472208ec1ad0132e90dd739f35e5e7 100644 (file)
--- a/src/src/tls-openssl.c
+++ b/src/src/tls-openssl.c
@@ -232,10 +232,14 @@ static exim_openssl_option exim_openssl_options[] = {
   { US"no_tlsv1", SSL_OP_NO_TLSv1 },
 #endif
 #ifdef SSL_OP_NO_TLSv1_1
-# if SSL_OP_NO_TLSv1_1 == 0x00000400L
+# if OPENSSL_VERSION_NUMBER < 0x30000000L
+#  if SSL_OP_NO_TLSv1_1 == 0x00000400L
   /* Error in chosen value in 1.0.1a; see first item in CHANGES for 1.0.1b */
-#  warning OpenSSL 1.0.1a uses a bad value for SSL_OP_NO_TLSv1_1, ignoring
-# else
+#   warning OpenSSL 1.0.1a uses a bad value for SSL_OP_NO_TLSv1_1, ignoring
+#   define NO_SSL_OP_NO_TLSv1_1
+#  endif
+# endif
+# ifndef NO_SSL_OP_NO_TLSv1_1
   { US"no_tlsv1_1", SSL_OP_NO_TLSv1_1 },
 # endif
 #endif