Fix compiler warnings and test failures when building without threads

(cherry picked from commit 56353aaf)

lib/isc/tests/task_test.c

@@ -35,11 +35,14 @@
  */
 
 static isc_mutex_t lock;
-static isc_condition_t cv;
 int counter = 0;
 static int active[10];
 static isc_boolean_t done = ISC_FALSE;
 
+#ifdef ISC_PLATFORM_USETHREADS
+static isc_condition_t cv;
+#endif
+
 static void
 set(isc_task_t *task, isc_event_t *event) {
 	int *value = (int *) event->ev_arg;
@@ -641,6 +644,10 @@ ATF_TC_BODY(task_exclusive, tc) {
 	isc_test_end();
 }
 
+/*
+ * The remainder of these tests require threads
+ */
+#ifdef ISC_PLATFORM_USETHREADS
 /*
  * Max tasks test:
  * The task system can create and execute many tasks. Tests with 10000.
@@ -1438,6 +1445,7 @@ ATF_TC_HEAD(purgeevent_notpurge, tc) {
 ATF_TC_BODY(purgeevent_notpurge, tc) {
 	try_purgeevent(ISC_FALSE);
 }
+#endif
 
 /*
  * Main

lib/isc/tests/timer_test.c

@@ -26,6 +26,11 @@
 
 #include "isctest.h"
 
+/*
+ * This entire test requires threads.
+ */
+#ifdef ISC_PLATFORM_USETHREADS
+
 /*
  * Helper functions
  */
@@ -556,6 +561,16 @@ ATF_TC_BODY(purge, tc) {
 
 	isc_test_end();
 }
+#else
+ATF_TC(untested);
+ATF_TC_HEAD(untested, tc) {
+        atf_tc_set_md_var(tc, "descr", "skipping nsec3 test");
+}
+ATF_TC_BODY(untested, tc) {
+        UNUSED(tc);
+        atf_tc_skip("DNSSEC not available");
+}
+#endif
 
 /*
  * Main
@@ -567,6 +582,8 @@ ATF_TP_ADD_TCS(tp) {
 	ATF_TP_ADD_TC(tp, once_idle);
 	ATF_TP_ADD_TC(tp, reset);
 	ATF_TP_ADD_TC(tp, purge);
+#else
+	ATF_TP_ADD_TC(tp, untested);
 #endif
 
 	return (atf_no_error());