Fixed MariaDB compilation

Follow up to da73084

Thanks to @SapitoSucio and @Singe-Horizontal

src/common/sql.cpp

@@ -121,11 +121,13 @@ int Sql_Connect(Sql* self, const char* user, const char* passwd, const char* hos
 
 	StringBuf_Clear(&self->buf);
 
+#if !defined(MARIADB_BASE_VERSION) && !defined(MARIADB_VERSION_ID) && MYSQL_VERSION_ID >= 50710
 	unsigned int md = SSL_MODE_DISABLED;
 
 	if( mysql_options( &self->handle, MYSQL_OPT_SSL_MODE, &md ) ){
 		ShowSQL( "Your MySQL version does not understand \"MYSQL_OPT_SSL_MODE\" yet. Please consider upgrading - especially if you encounter SSL related error messages from your MySQL server.\n" );
 	}
+#endif
 
 	if( !mysql_real_connect(&self->handle, host, user, passwd, db, (unsigned int)port, NULL/*unix_socket*/, 0/*clientflag*/) )
 	{