4005 libctf can't deal with extended sections
Reviewed by: Jason King <jason.brian.king@gmail.com>
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Approved by: Robert Mustacchi <rm@joyent.com>

2698 libctf should use libz.so.1, not libz.so
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Approved by: Richard Lowe <richlowe@richlowe.net>

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