--- xen-4.13.0/tools/xenpmd/Makefile.orig	2019-12-17 14:23:09.000000000 +0000
+++ xen-4.13.0/tools/xenpmd/Makefile	2020-01-22 22:13:16.564873608 +0000
@@ -3,6 +3,7 @@
 
 CFLAGS += -Werror
 CFLAGS += $(CFLAGS_libxenstore)
+CFLAGS += -Wno-error=format-truncation
 
 LDLIBS += $(LDLIBS_libxenstore)