highlight and filter (gcc) compiler messages

Question

i\'m currently refactoring a C-project, throwing about 1000 warnings at me. is there a way to highlight and filter these warnings. (eg make all index warnings red, unused bl

Answer 1

This is really basic, but I've been using grep...

make 2>&1 | grep --color -iP "\^|warning:|error:|"

just to quickly draw the eye to the error line and offending section pointed to by ^.

I've found other methods over-use colour and you end up with the same problem. I guess you could also inject colour escape sequences with sed.