12013 fix smatch build for GCC4
Reviewed by: Dan McDonald <danmcd@joyent.com>
Approved by: Robert Mustacchi <rm@fingolfin.org>

11972 resync smatch
Reviewed by: Robert Mustacchi <rm@fingolfin.org>
Approved by: Dan McDonald <danmcd@joyent.com>

10063 basic support for smatch
10153 checkpaths shouldn't check packaging exceptions
Reviewed by: Toomas Soome <tsoome@me.com>
Approved by: Dan McDonald <danmcd@joyent.com>