unittests: check if we have lmdb support.

tests/zone_timers.c

@@ -20,6 +20,7 @@
 
 #include "libknot/common.h"
 #include "common/namedb/namedb.h"
+#include "common/namedb/namedb_lmdb.h"
 #include "knot/zone/timers.h"
 #include "knot/zone/zone.h"
 #include "knot/zone/events/events.h"
@@ -33,6 +34,11 @@ int main(int argc, char *argv[])
 {
 	plan_lazy();
 
+	if (namedb_lmdb_api() == NULL) {
+		// LMDB API not compiled.
+		return EXIT_SUCCESS;
+	}
+
 	// Temporary DB identifier.
 	char dbid_buf[] = "/tmp/timerdb.XXXXXX";
 	const char *dbid = mkdtemp(dbid_buf);