mbedtls: don't set debug threshold if compiled without MBEDTLS_DEBUG_C

For targets with space constraints, one might want to compile mbed TLS
without MBEDTLS_DEBUG_C defined, to save some tens of kilobytes.  Make
sure OpenVPN still compiles if that is the case.

Signed-off-by: Steffan Karger <steffan@karger.me>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <1465934403-22226-1-git-send-email-steffan@karger.me>
URL: http://article.gmane.org/gmane.network.openvpn.devel/11922
Signed-off-by: Gert Doering <gert@greenie.muc.de>

diff --git a/src/openvpn/ssl_mbedtls.c b/src/openvpn/ssl_mbedtls.c
index b5e7a6a72cc4f4234084ef33c4de99243d941069..e20ec02dd540869df43faff0fc6b7082c2dc78e8 100644 (file)
--- a/src/openvpn/ssl_mbedtls.c
+++ b/src/openvpn/ssl_mbedtls.c
@@ -777,7 +777,9 @@ void key_state_ssl_init(struct key_state_ssl *ks_ssl,
   mbedtls_ssl_config_init(&ks_ssl->ssl_config);
   mbedtls_ssl_config_defaults(&ks_ssl->ssl_config, ssl_ctx->endpoint,
       MBEDTLS_SSL_TRANSPORT_STREAM, MBEDTLS_SSL_PRESET_DEFAULT);
+#ifdef MBEDTLS_DEBUG_C
   mbedtls_debug_set_threshold(3);
+#endif
   mbedtls_ssl_conf_dbg (&ks_ssl->ssl_config, my_debug, NULL);
   mbedtls_ssl_conf_rng (&ks_ssl->ssl_config, mbedtls_ctr_drbg_random,
       rand_ctx_get());