Support DLZ filesystem detection in feature-test

Do not use variable from configure to detect the feature.

bin/tests/system/Makefile.in

@@ -19,7 +19,7 @@ SUBDIRS =	dlzexternal dyndb pipelined rndc rpz rsabigexponent tkey
 
 CINCLUDES =	${ISC_INCLUDES} ${DNS_INCLUDES}
 
-CDEFINES =	@USE_GSSAPI@
+CDEFINES =	@USE_GSSAPI@ @CONTRIB_DLZ@
 CWARNINGS =
 
 DNSLIBS =

bin/tests/system/dlz/prereq.sh.in → bin/tests/system/dlz/prereq.sh

@@ -12,7 +12,7 @@
 SYSTEMTESTTOP=..
 . $SYSTEMTESTTOP/conf.sh
 
-if [ "@DLZ_SYSTEM_TEST@" != "filesystem" ]; then
+if ! $FEATURETEST --with-dlz-filesystem; then
         echo_i "DLZ filesystem driver not supported"
         exit 255
 fi

bin/tests/system/feature-test.c

@@ -47,6 +47,7 @@ usage() {
 	fprintf(stderr, "	--ipv6only=no\n");
 	fprintf(stderr, "	--with-idn\n");
 	fprintf(stderr, "	--with-lmdb\n");
+	fprintf(stderr, "	--with-dlz-filesystem\n");
 }
 
 int
@@ -150,6 +151,14 @@ main(int argc, char **argv) {
 #endif
 	}
 
+	if (strcmp(argv[1], "--with-dlz-filesystem") == 0) {
+#ifdef DLZ_FILESYSTEM
+		return (0);
+#else
+		return (1);
+#endif
+	}
+
 	if (strcmp(argv[1], "--ipv6only=no") == 0) {
 #ifdef WIN32
 		return (0);

configure.ac

@@ -2949,7 +2949,6 @@ AC_CONFIG_FILES([
 	bin/tests/pkcs11/benchmarks/Makefile
 	bin/tests/system/Makefile
 	bin/tests/system/conf.sh
-	bin/tests/system/dlz/prereq.sh
 	bin/tests/system/dlzexternal/Makefile
 	bin/tests/system/dlzexternal/ns1/dlzs.conf
 	bin/tests/system/dyndb/Makefile

util/copyrights

@@ -519,7 +519,7 @@
 ./bin/tests/system/dlz/ns1/dns-root/com/example/dns.d/@/NS=10=example.com.=	TXT.BRIEF	2010,2016,2018,2019
 ./bin/tests/system/dlz/ns1/dns-root/com/example/dns.d/@/SOA=10=ns.example.com.=root.example.com.=2010062900=0=0=0=10=	TXT.BRIEF	2010,2016,2018,2019
 ./bin/tests/system/dlz/ns1/dns-root/com/example/xfr.d/10.53.0.1	TXT.BRIEF	2010,2016,2018,2019
-./bin/tests/system/dlz/prereq.sh.in		SH	2011,2012,2016,2018,2019
+./bin/tests/system/dlz/prereq.sh		SH	2011,2012,2016,2018,2019
 ./bin/tests/system/dlz/setup.sh			SH	2018,2019
 ./bin/tests/system/dlz/tests.sh			SH	2010,2011,2012,2013,2015,2016,2018,2019
 ./bin/tests/system/dlzexternal/clean.sh		SH	2010,2012,2014,2015,2016,2018,2019