Fix /who on opers incorrectly showing +i opers to
users without the privilege to see them, introduced in
b328aad53b044bd9cf9720dfed216b0ee61c8e31
Fix Solaris not being able to find modules without pkg-config.
Merge pull request #783 from SaberUK/insp20+solaris-hates-posix

Fix Solaris not being able to find modules without pkg-config.