vene signal changes in dwm and status bar upgrades

dwm.c

@@ -1547,8 +1547,9 @@ setup(void)
 
 	/* do not transform children into zombies when they terminate */
 	sigemptyset(&sa.sa_mask);
-	sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART;
-	sa.sa_handler = SIG_IGN;
+	sa.sa_flags = SA_NOCLDSTOP | SA_RESTART;
+	/* IGN -> DFL for cppipe so that waitpid works */
+	sa.sa_handler = SIG_DFL;
 	sigaction(SIGCHLD, &sa, NULL);
 
 	/* clean up any zombies (inherited from .xinitrc etc) immediately */
@@ -1653,8 +1654,11 @@ spawn(const Arg *arg)
 	if (fork() == 0) {
 		if (dpy)
 			close(ConnectionNumber(dpy));
+
+		/* Child starts a new session */
 		setsid();
 
+		/* Don't inherit dwm's sigaction from setup */
 		sigemptyset(&sa.sa_mask);
 		sa.sa_flags = 0;
 		sa.sa_handler = SIG_DFL;