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-rw-r--r--ext/openssl/ossl_ssl.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/ext/openssl/ossl_ssl.c b/ext/openssl/ossl_ssl.c
index 2174b65b55..e8fb13f7ea 100644
--- a/ext/openssl/ossl_ssl.c
+++ b/ext/openssl/ossl_ssl.c
@@ -93,14 +93,15 @@ ossl_sslctx_s_alloc(VALUE klass)
RTYPEDDATA_DATA(obj) = ctx;
SSL_CTX_set_ex_data(ctx, ossl_sslctx_ex_ptr_idx, (void *)obj);
-#if !defined(OPENSSL_NO_EC)
+#if !defined(OPENSSL_NO_EC) && OPENSSL_VERSION_NUMBER < 0x10100000 && \
+ !defined(LIBRESSL_VERSION_NUMBER)
/* We use SSL_CTX_set1_curves_list() to specify the curve used in ECDH. It
* allows to specify multiple curve names and OpenSSL will select
* automatically from them. In OpenSSL 1.0.2, the automatic selection has to
- * be enabled explicitly. But OpenSSL 1.1.0 removed the knob and it is
- * always enabled. To uniform the behavior, we enable the automatic
- * selection also in 1.0.2. Users can still disable ECDH by removing ECDH
- * cipher suites by SSLContext#ciphers=. */
+ * be enabled explicitly. OpenSSL 1.1.0 and LibreSSL 2.6.1 removed the knob
+ * and it is always enabled. To uniform the behavior, we enable the
+ * automatic selection also in 1.0.2. Users can still disable ECDH by
+ * removing ECDH cipher suites by SSLContext#ciphers=. */
if (!SSL_CTX_set_ecdh_auto(ctx, 1))
ossl_raise(eSSLError, "SSL_CTX_set_ecdh_auto");
#endif