From 8faa9f3c93cf2de93e03f0214baab15c3d7192cf Mon Sep 17 00:00:00 2001
From: bakkeby <bakkeby@gmail.com>
Date: Fri, 21 Aug 2020 17:28:14 +0200
Subject: [PATCH] externalpipe: ensure all of st's children are reaped

---
 st.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/st.c b/st.c
index 4026546..6ce8c4e 100644
--- a/st.c
+++ b/st.c
@@ -789,8 +789,19 @@ sigchld(int a)
 	#endif // EXTERNALPIPEIN_PATCH
 		die("waiting for pid %hd failed: %s\n", pid, strerror(errno));
 
+	#if EXTERNALPIPE_PATCH
+	if (pid != p) {
+		if (p == 0 && wait(&stat) < 0)
+			die("wait: %s\n", strerror(errno));
+
+		/* reinstall sigchld handler */
+		signal(SIGCHLD, sigchld);
+		return;
+	}
+	#else
 	if (pid != p)
 		return;
+	#endif // EXTERNALPIPE_PATCH
 
 	#if EXTERNALPIPEIN_PATCH && EXTERNALPIPE_PATCH
 	close(csdfd);