From: Karl Heuer <kwzh@gnu.org>
Date: Wed, 13 Dec 1995 02:02:17 +0000 (+0000)
Subject: (PTY_OPEN): Block SIGCHLD during openpty.
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(PTY_OPEN): Block SIGCHLD during openpty.
---

diff --git a/src/m/alpha.h b/src/m/alpha.h
index ef070198e80..d113f8f32eb 100644
--- a/src/m/alpha.h
+++ b/src/m/alpha.h
@@ -266,8 +266,11 @@ extern void r_alloc_free ();
   do							\
     {							\
       int dummy;					\
+      SIGMASKTYPE mask;					\
+      mask = sigblockx (SIGCHLD);			\
       if (-1 == openpty (&fd, &dummy, pty_name, 0, 0))	\
 	fd = -1;					\
+      sigsetmask (mask);				\
       close (dummy);					\
     }							\
   while (0)