core: Annotate variables only used within assert()s to be PA_UNUSED

supresses a warning when compiling with NDEBUG:

pulsecore/aupdate.c: In function 'pa_aupdate_read_end':
pulsecore/aupdate.c:82:14: warning: variable 'n' set but not used [-Wunused-but-set-variable]
     unsigned n;

pulsecore/sink-input.c: In function 'pa_sink_input_unlink':
pulsecore/sink-input.c:648:27: warning: variable 'p' set but not used [-Wunused-but-set-variable]
     pa_source_output *o, *p = NULL;

pulsecore/sink-input.c: In function 'find_filter_sink_input':
pulsecore/sink-input.c:1523:14: warning: unused variable 'i' [-Wunused-variable]
     unsigned i = 0;

pulsecore/sink-input.c: In function 'pa_sink_input_start_move':
pulsecore/sink-input.c:1569:27: warning: variable 'p' set but not used [-Wunused-but-set-variable]
     pa_source_output *o, *p = NULL;

  CC       pulsecore/libpulsecore_5.0_la-sink.lo
pulsecore/sink.c: In function 'pa_sink_unlink':
pulsecore/sink.c:673:24: warning: variable 'j' set but not used [-Wunused-but-set-variable]
     pa_sink_input *i, *j = NULL;

   pulsecore/source-output.c: In function 'find_filter_source_output':
pulsecore/source-output.c:1179:9: warning: unused variable 'i' [-Wunused-variable]
     int i = 0;

  CC       pulsecore/libpulsecore_5.0_la-source.lo
pulsecore/source.c: In function 'pa_source_unlink':
pulsecore/source.c:616:27: warning: variable 'j' set but not used [-Wunused-but-set-variable]
     pa_source_output *o, *j = NULL;

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>

src/modules/bluetooth/backend-native.c

@@ -320,7 +320,7 @@ static DBusMessage *profile_new_connection(DBusConnection *conn, DBusMessage *m,
     pa_bluetooth_profile_t p;
     DBusMessage *r;
     int fd;
-    const char *sender, *path, *handler;
+    const char *sender, *path, PA_UNUSED *handler;
     DBusMessageIter arg_i;
     char *pathfd;
     struct transport_rfcomm *trfc;
@@ -331,7 +331,7 @@ static DBusMessage *profile_new_connection(DBusConnection *conn, DBusMessage *m,
     }
 
     handler = dbus_message_get_path(m);
-    pa_assert (pa_streq(handler, HSP_AG_PROFILE));
+    pa_assert(pa_streq(handler, HSP_AG_PROFILE));
 
     pa_assert(dbus_message_iter_get_arg_type(&arg_i) == DBUS_TYPE_OBJECT_PATH);
     dbus_message_iter_get_basic(&arg_i, &path);

src/pulsecore/aupdate.c

@@ -79,7 +79,7 @@ unsigned pa_aupdate_read_begin(pa_aupdate *a) {
 }
 
 void pa_aupdate_read_end(pa_aupdate *a) {
-    unsigned n;
+    unsigned PA_UNUSED n;
 
     pa_assert(a);
 

src/pulsecore/sink-input.c

@@ -644,7 +644,7 @@ static void sink_input_set_state(pa_sink_input *i, pa_sink_input_state_t state)
 /* Called from main context */
 void pa_sink_input_unlink(pa_sink_input *i) {
     bool linked;
-    pa_source_output *o, *p = NULL;
+    pa_source_output *o, PA_UNUSED *p = NULL;
 
     pa_assert(i);
     pa_assert_ctl_context();
@@ -1519,7 +1519,7 @@ bool pa_sink_input_may_move(pa_sink_input *i) {
 }
 
 static bool find_filter_sink_input(pa_sink_input *target, pa_sink *s) {
-    int i = 0;
+    unsigned PA_UNUSED i = 0;
     while (s && s->input_to_master) {
         if (s->input_to_master == target)
             return true;
@@ -1565,7 +1565,7 @@ bool pa_sink_input_may_move_to(pa_sink_input *i, pa_sink *dest) {
 
 /* Called from main context */
 int pa_sink_input_start_move(pa_sink_input *i) {
-    pa_source_output *o, *p = NULL;
+    pa_source_output *o, PA_UNUSED *p = NULL;
     struct volume_factor_entry *v;
     void *state = NULL;
     int r;

src/pulsecore/sink.c

@@ -669,7 +669,7 @@ void pa_sink_put(pa_sink* s) {
 /* Called from main context */
 void pa_sink_unlink(pa_sink* s) {
     bool linked;
-    pa_sink_input *i, *j = NULL;
+    pa_sink_input *i, PA_UNUSED *j = NULL;
 
     pa_assert(s);
     pa_assert_ctl_context();

src/pulsecore/source-output.c

@@ -1175,7 +1175,7 @@ bool pa_source_output_may_move(pa_source_output *o) {
 }
 
 static bool find_filter_source_output(pa_source_output *target, pa_source *s) {
-    int i = 0;
+    unsigned PA_UNUSED i = 0;
     while (s && s->output_from_master) {
         if (s->output_from_master == target)
             return true;

src/pulsecore/source.c

@@ -612,7 +612,7 @@ void pa_source_put(pa_source *s) {
 /* Called from main context */
 void pa_source_unlink(pa_source *s) {
     bool linked;
-    pa_source_output *o, *j = NULL;
+    pa_source_output *o, PA_UNUSED *j = NULL;
 
     pa_assert(s);
     pa_assert_ctl_context();

src/tests/format-test.c

@@ -36,7 +36,7 @@
 
 START_TEST (format_test) {
     pa_format_info *f1 = NULL, *f2 = NULL;
-    int rates1[] = { 32000, 44100, 48000 }, i, temp_int1 = -1, temp_int2 = -1, *temp_int_array;
+    int rates1[] = { 32000, 44100, 48000 }, i, temp_int1 = -1, PA_UNUSED temp_int2 = -1, *temp_int_array;
     const char *strings[] = { "thing1", "thing2", "thing3" };
     char *temp_str, **temp_str_array;