[Bug libfortran/68347] Multiple build errors in libgfortran

[alexey.a.rychkov at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68347

--- Comment #6 from Alexey Rychkov <alexey.a.rychkov at gmail dot com> ---
(In reply to Andreas Schwab from comment #4)
> Did you set GREP_OPTIONS?

Yes, GREP_OPTIONS='--color=always'