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 blue, and some other)

most likely some ides can do that, but that's no solution for me.

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.

Answer 2

Try the colorgcc Debian package. There are also three other packages I found: Johannes Schlüter's colorgcc, or this package in German, or this Sourceforge project