On 31 July 2016 at 07:08, phi gcc wrote: > Hi All, > > Reposting this here from gcc-help. > > > I got the impression that I got colors in diag output depsite the fact > that I got no GCC env var setup. The manual says "Setting GCC_COLORS to the empty string disables colors." Did you try that? Setting it to an empty string in your env should disable the coloured output.