Hi Andre, > Meaning that it does. Some of those warnings are actually useful. If you want to remove "warning: suggest parentheses around && within ||" and keep any other "warning: suggest parentheses around FOO within BAR" warnings, you can use grep -v -e to post process the output. Or in your source, you can add in the parentheses, as suggested by the warning. >From your initial inquiry, it appeared that you wanted -Wall without any parentheses warnings (-Wno-parentheses). Sincerely, --Eljay