--- cnijfilter-source-3.40-1/cngpijmon/src/bjcupsmon_cups.c.orig      2012-06-29 16:34:24.411956073 +0200
+++ cnijfilter-source-3.40-1/cngpijmon/src/bjcupsmon_cups.c   2012-06-29 16:38:54.599944770 +0200
@@ -20,6 +20,7 @@
 /*** Includes ***/
 #include <cups/cups.h>
 #include <cups/language.h>
+#include <cups/ppd.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <pwd.h>
--- cnijfilter-source-3.40-1/backend/src/cnij_backend_common.c.orig   2012-06-29 16:33:29.459958369 +0200
+++ cnijfilter-source-3.40-1/backend/src/cnij_backend_common.c        2012-06-29 16:34:06.109956835 +0200
@@ -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"