--- nginx-1.4.7/src/event/ngx_event_openssl.c   2014-03-18 21:17:10.000000000 +0800
+++ nginx-1.4.7/src/event/ngx_event_openssl.c   2014-05-20 10:00:21.556654322 +0800
@@ -185,8 +185,10 @@
     SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG);
     SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER);
 
+#ifdef SSL_OP_MSIE_SSLV2_RSA_PADDING
     /* this option allow a potential SSL 2.0 rollback (CAN-2005-2969) */
     SSL_CTX_set_options(ssl->ctx, SSL_OP_MSIE_SSLV2_RSA_PADDING);
+#endif
 
     SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLEAY_080_CLIENT_DH_BUG);
     SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_D5_BUG);