1 --- a/src/tls-openssl.c
2 +++ a/src/tls-openssl.c
3 @@ -232,10 +232,14 @@ static exim_openssl_option exim_openssl_options[] = {
4 { US"no_tlsv1", SSL_OP_NO_TLSv1 },
6 #ifdef SSL_OP_NO_TLSv1_1
7 -# if SSL_OP_NO_TLSv1_1 == 0x00000400L
8 +# if OPENSSL_VERSION_NUMBER < 0x30000000L
9 +# if SSL_OP_NO_TLSv1_1 == 0x00000400L
10 /* Error in chosen value in 1.0.1a; see first item in CHANGES for 1.0.1b */
11 -# warning OpenSSL 1.0.1a uses a bad value for SSL_OP_NO_TLSv1_1, ignoring
13 +# warning OpenSSL 1.0.1a uses a bad value for SSL_OP_NO_TLSv1_1, ignoring
14 +# define NO_SSL_OP_NO_TLSv1_1
17 +# ifndef NO_SSL_OP_NO_TLSv1_1
18 { US"no_tlsv1_1", SSL_OP_NO_TLSv1_1 },