lib-ssl-iostream: Fixed compiler warning when OpenSSL didn't support ECDH.

diff --git a/src/lib-ssl-iostream/iostream-openssl-context.c b/src/lib-ssl-iostream/iostream-openssl-context.c
index e32d5ecbff6e2bc71e691e0c06248110e694fed8..41eaf068c2f02c3f76d02b3f328c0af8a017d4e6 100644 (file)
--- a/src/lib-ssl-iostream/iostream-openssl-context.c
+++ b/src/lib-ssl-iostream/iostream-openssl-context.c
@@ -395,7 +395,7 @@ ssl_proxy_ctx_get_pkey_ec_curve_name(const struct ssl_iostream_settings *set,
 static int
 ssl_proxy_ctx_set_crypto_params(SSL_CTX *ssl_ctx,
                                const struct ssl_iostream_settings *set ATTR_UNUSED,
-                               const char **error_r)
+                               const char **error_r ATTR_UNUSED)
 {
 #if defined(HAVE_ECDH) && !defined(SSL_CTRL_SET_ECDH_AUTO)
        EC_KEY *ecdh;