+diff -ur syslog-ng-syslog-ng-3.22.1.orig/Makefile.am syslog-ng-syslog-ng-3.22.1/Makefile.am
+--- syslog-ng-syslog-ng-3.22.1.orig/Makefile.am 2019-06-25 10:51:09.000000000 +0200
++++ syslog-ng-syslog-ng-3.22.1/Makefile.am 2019-08-24 00:15:37.356000000 +0200
+@@ -24,7 +24,7 @@
+ SUBDIRS =
+ DIST_SUBDIRS =
+ AM_MAKEFLAGS = --no-print-directory
+-AM_YFLAGS = -Wno-yacc -Wno-other -Werror=conflicts-sr -Werror=conflicts-rr
++AM_YFLAGS = -Wnone -Werror=conflicts-sr -Werror=conflicts-rr
+
+ AM_TESTS_ENVIRONMENT = top_srcdir="$(top_srcdir)"
+