4647. [bug] Change 4643 broke verification of TSIG signed TCP

message sequences where not all the messages contain
                        TSIG records.  These may be used in AXFR and IXFR
                        responses.  [RT #45509]

lib/dns/tests/Makefile.in

@@ -53,6 +53,7 @@ SRCS =		acl_test.c \
 		rdatasetstats_test.c \
 		rsa_test.c \
 		time_test.c \
+		tsig_test.c \
 		update_test.c \
 		zonemgr_test.c \
 		zt_test.c
@@ -81,6 +82,7 @@ TARGETS =	acl_test@EXEEXT@ \
 		rdatasetstats_test@EXEEXT@ \
 		rsa_test@EXEEXT@ \
 		time_test@EXEEXT@ \
+		tsig_test@EXEEXT@ \
 		update_test@EXEEXT@ \
 		zonemgr_test@EXEEXT@ \
 		zt_test@EXEEXT@
@@ -226,6 +228,11 @@ rsa_test@EXEEXT@: rsa_test.@O@ dnstest.@O@ ${ISCDEPLIBS} ${DNSDEPLIBS}
 			rsa_test.@O@ dnstest.@O@ ${DNSLIBS} \
 			${ISCLIBS} ${LIBS}
 
+tsig_test@EXEEXT@: tsig_test.@O@ dnstest.@O@ ${ISCDEPLIBS} ${DNSDEPLIBS}
+	${LIBTOOL_MODE_LINK} ${PURIFY} ${CC} ${CFLAGS} ${LDFLAGS} -o $@ \
+			tsig_test.@O@ dnstest.@O@ ${DNSLIBS} \
+			${ISCLIBS} ${LIBS}
+
 unit::
 	sh ${top_srcdir}/unit/unittest.sh