--- backend/src/cnij_backend_common.c.orig 2013-07-17 11:33:45.000000000 +1000 +++ backend/src/cnij_backend_common.c 2019-03-05 22:02:03.105361333 +1000 @@ -38,6 +38,7 @@ // CUPS Header #include <cups/cups.h> #include <cups/ipp.h> +#include <cups/ppd.h> // Header file for CANON #include "cnij_backend_common.h"