From: Jim Blandy <jimb@redhat.com>
Date: Sat, 29 May 1993 20:46:03 +0000 (+0000)
Subject: * systty.h (CDISABLE): #undef it before re-#defining it.
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* systty.h (CDISABLE): #undef it before re-#defining it.
---

diff --git a/src/systty.h b/src/systty.h
index b4b30fb41ba..a2800944126 100644
--- a/src/systty.h
+++ b/src/systty.h
@@ -177,6 +177,7 @@ static struct sensemode {
 #define CDISABLE _POSIX_VDISABLE
 #else /* not _POSIX_VDISABLE */
 #ifdef CDEL
+#undef CDISABLE
 #define CDISABLE CDEL
 #else /* not CDEL */
 #define CDISABLE 255