slackbuilds/audio/wmusic/kill_glib_assertion_spam.diff

diff -Naur wmusic-2.0.0/src/wmusic.c wmusic-2.0.0.patched/src/wmusic.c
--- wmusic-2.0.0/src/wmusic.c	2018-06-22 16:18:18.000000000 -0400
+++ wmusic-2.0.0.patched/src/wmusic.c	2018-09-16 01:15:17.317552343 -0400
@@ -374,6 +374,7 @@
 	double volume;
 	double factor;
 
+	if(!player) return;
 	g_object_get(player, "volume", &volume, NULL);
 
 	if (*(int*)data == 1)
@@ -393,6 +394,7 @@
 void ChangeVol(int x, int y, DARect rect, void *data)
 {
 	float volume = ((float)x)/38;
+	if(!player) return;
 	g_object_set(player, "volume", volume, NULL);
 }
 
@@ -635,6 +637,7 @@
 		int volume;
 		double volume_double;
 
+		if(!player) return;
 		g_object_get(player, "volume", &volume_double, NULL);
 		volume = (int)(36 * volume_double);
 		if (volume > 36)