int frameidx = (int) frame;
if(frameidx >= get_frames() || frameidx < 0) {
-#ifndef DEBUG
+#ifdef NDEBUG
// in optimized mode we get some small rounding errors in floating point
// number sometimes...
log_warning << "frame out of range: " << frameidx << "/" << get_frames() << " at sprite: " << get_name() << "/" << get_action() << std::endl;