Added warning for building TQt interface based on Qt4
Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 5c2dda650e168f597899912c2a111d2c84b4771d)
This resolves issues with mode 'embed'
Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit be944e140b0ae077854cbe3bb90c9f122bb6623b)