Option for enabling/disabling forward secrecy.

src/civetweb.c

@@ -985,6 +985,7 @@ enum {
 	SSL_CA_FILE,
 	SSL_VERIFY_DEPTH,
 	SSL_DEFAULT_VERIFY_PATHS,
+	SSL_FORWARD_SECRECY,
 #if defined(USE_WEBSOCKET)
 	WEBSOCKET_TIMEOUT,
 #endif
@@ -1049,6 +1050,7 @@ static struct mg_option config_options[] = {
 	{"ssl_ca_file", CONFIG_TYPE_FILE, NULL},
 	{"ssl_verify_depth", CONFIG_TYPE_NUMBER, "9"},
 	{"ssl_default_verify_paths", CONFIG_TYPE_BOOLEAN, "yes"},
+	{"ssl_forward_secrecy", CONFIG_TYPE_BOOLEAN, "yes"},
 #if defined(USE_WEBSOCKET)
     {"websocket_timeout_ms", CONFIG_TYPE_NUMBER, "30000"},
 #endif