Hi Christian, > So your basic point is use "-Wall", and filter as needed? Yep. Hopefully the filter part won't be necessary. The warning flags I use: http://gcc.gnu.org/ml/gcc-help/2007-01/msg00187.html http://gcc.gnu.org/ml/gcc-help/2006-09/msg00118.html > If so, do you have any sense of how big the gap is between that approach and what FlexiLint does for me? (I realize this is a hard thing to quantify.) Sorry, I'm not sure how big the gap is. I haven't used Gimpel's software for a long while now (almost two decades ago). Sincerely, --Eljay