[Mesa-dev] [PATCH] Convert sed(1) syntax to be compatible with FreeBSD and OpenBSD

[Jan Beich]

Eric Engestrom <eric.engestrom at imgtec.com> writes:

>> +    echo " `$1`" | sed -E \
>> +        -e 's/[[[:space:]]]+-m[[^[:space:]]]*//g' \
>
> These only work for me if I remove the outermost `[]` on each line,
> leaving one pair around `:space:` and one for the set.
> The above line, for instance, becomes:
>   -e 's/[[:space:]]+-m[^[:space:]]*//g' \
>
> Are those outer brackets necessary on *BSD? I don't have one available
> to test this myself.

configure.ac is written in autoconf, so some characters have to be quoted.
`[' and `]' are quote markers, so one layer is stripped. Do you want me
to quote the whole function (including whitespace) instead?

https://www.gnu.org/software/autoconf/manual/autoconf.html#M4-Quotation