Support for OpenSSL 1.1.0:

- BIO was made opaque after OpenSSL 1.1.0pre4.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1737657 13f79535-47bb-0310-9956-ffa450edef68

modules/ssl/ssl_engine_init.c

@@ -356,6 +356,9 @@ apr_status_t ssl_init_Module(apr_pool_t *p, apr_pool_t *plog,
     modssl_init_app_data2_idx(); /* for modssl_get_app_data2() at request time */
 
     init_dh_params();
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+    init_bio_methods();
+#endif
 
     return OK;
 }
@@ -1984,6 +1987,9 @@ apr_status_t ssl_init_ModuleKill(void *data)
         ssl_init_ctx_cleanup(sc->server);
     }
 
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+    free_bio_methods();
+#endif
     free_dh_params();
 
     return APR_SUCCESS;