From 727b007cb25859b82c6b62fdb02bd0d104851a1d Mon Sep 17 00:00:00 2001
From: "Richard M. Stallman" <rms@gnu.org>
Date: Wed, 10 Nov 1993 20:03:25 +0000
Subject: [PATCH] (EMACS_GETPGRP): New macro hides argument passing to system
 getpgrp.  Reinstate some semblance of control over this macros behaviour by
 paying attention to GETPGRP_NO_ARG.

---
 src/systty.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/systty.h b/src/systty.h
index 67bf3bf240d..5a166b2fd5d 100644
--- a/src/systty.h
+++ b/src/systty.h
@@ -271,6 +271,19 @@ static struct sensemode {
 
 #endif
 
+/* EMACS_GETPGRP (arg) returns the process group of the terminal.  */
+
+#if defined (USG) && !defined (GETPGRP_NEEDS_ARG)
+#  if !defined (GETPGRP_NO_ARG)
+#    define GETPGRP_NO_ARG
+#  endif
+#endif
+
+#if defined (GETPGRP_NO_ARG)
+#  define EMACS_GETPGRP(x) getpgrp()
+#else
+#  define EMACS_GETPGRP(x) getpgrp(x)
+#endif /* !GETPGRP_NO_ARG */
 
 /* Manipulate a TTY's input/output processing parameters.  */
 
-- 
2.39.5