The default search path in sysroot is sufficient to find zlib, so the
--with-libz-prefix configure option seems to be unnecessary.
For target builds, relying on sysroot also prevents an absolute path
from being hardcoded in the gnutls.pc pkg-config file.
(From OE-Core rev: 7a800bfeb6c8c83ee7cc74739f496982cd71c8e8)
(From OE-Core rev: f46c2ac0fd05f0e10258d8f03bfb2ebd0c2bcbe3)
Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>