[Bug 255182] www/hiawatha : regexp error on 13

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=255182

Kyle Evans <kevans at freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |kevans at freebsd.org

--- Comment #2 from Kyle Evans <kevans at freebsd.org> ---
(In reply to Fernando Apesteguía from comment #1)

Two paths forward, either is fine:

1.) As recommended by the reporter, \\s -> [[:space:]] to make these POSIX
compliant expressions, OR

2.) Link against libregex, using devel/libgnuregex for FreeBSD < 13.0 and base
libregex for >= 13.0

I'd tend to advise #1 because this is a GNUism.

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