In normal use this is pulled in through libpng, but it's exposed in the headers
of cairo-pdf and cairo-ps and a build from sstate can end up without zlib being
present.
(From OE-Core rev: 8413bf1ce95802bff032b4592ca1aa4728d62cbf)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
88a8e96f8f