CUPS did not work with older versions of GNU TLS (STR #4527)

- Add check for gnutls_priority_set_direct, use older gnutls_priority_set API
  if not found.


git-svn-id: svn+ssh://src.apple.com/svn/cups/cups.org/trunk@12269 a1ca3aef-8c08-0410-bb20-df032aa958be
6 files changed