From b1b64465775283936a7bf54f584f3521ba75f3dd Mon Sep 17 00:00:00 2001
From: Tanaka Akira <akr@users.sourceforge.net>
Date: Mon, 11 Oct 1999 00:24:55 +0000
Subject: manual/8192

---
 Src/exec.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Src/exec.c b/Src/exec.c
index 7993af2da..69a34254e 100644
--- a/Src/exec.c
+++ b/Src/exec.c
@@ -1908,7 +1908,10 @@ execcmd(Cmd cmd, int input, int output, int how, int last1)
 	    case MERGEOUT:
 		if (fn->fd2 < 10)
 		    closemn(mfds, fn->fd2);
-		if (fn->fd2 > 9 && fdtable[fn->fd2]) {
+		if (fn->fd2 > 9 &&
+		    (fdtable[fn->fd2] ||
+		     fn->fd2 == coprocin ||
+		     fn->fd2 == coprocout)) {
 		    fil = -1;
 		    errno = EBADF;
 		} else {
-- 
cgit 1.4.1