7120 mDNS resync was not wsdiff safe

@@ -36,10 +36,11 @@
 
 LDLIBS +=       -lsocket -lnsl -lc
 
 C99MODE =       $(C99_ENABLE)
 CPPFLAGS +=     -I$(SRCDIR) -DNOT_HAVE_SA_LEN -D_XPG4_2 -D__EXTENSIONS__
+CPPFLAGS +=     -DMDNS_VERSIONSTR_NODTS
 
 .PARALLEL =     $(OBJECTS)
 .KEEP_STATE:
 
 lint: lintcheck