Re: gccgo branch and darwin

[Ralf Wildenhues <Ralf dot Wildenhues at gmx dot de>]

* Arnaud Lacombe wrote on Sat, Nov 20, 2010 at 05:58:13AM CET:
> --- a/libgo/mksysinfo.sh
> +++ b/libgo/mksysinfo.sh
> @@ -79,7 +79,7 @@ grep '^const _E' gen-sysinfo.go | \
> 
>  # The O_xxx flags.
>  grep '^const _\(O\|F\|FD\)_' gen-sysinfo.go | \
> -  sed -e 's/^\(const \)_\(\(O\|F\|FD\)_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
> +  sed -e 's/^\(const \)_\(\([A-Za-z0-9_]\{1,\}\)_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
>  if ! grep '^const O_CLOEXEC' ${OUT} >/dev/null 2>&1; then \
>    echo "const O_CLOEXEC = 0" >> ${OUT}
>  fi

Good catch.  Alternation is not portable in sed, but nested grouping
\(\(...\)...\) is not fully portable either, neither is \U.
There are a few instances of those in this file.

Thanks,
Ralf