From 3fdd33ab99cf8c6507aa7cabc0f6a9e9dd39d9a7 Mon Sep 17 00:00:00 2001
From: Tom Lane
Date: Thu, 21 Oct 2004 19:49:27 +0000
Subject: Avoid macro-redefinition warnings on Windows, per Andrew Dunstan.

---
 contrib/tsearch2/rewrite.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'contrib/tsearch2/rewrite.c')

diff --git a/contrib/tsearch2/rewrite.c b/contrib/tsearch2/rewrite.c
index 4d7294cd74a..e7b5045c9e9 100644
--- a/contrib/tsearch2/rewrite.c
+++ b/contrib/tsearch2/rewrite.c
@@ -174,6 +174,11 @@ clean_NOT_v2(ITEM * ptr, int4 *len)
 	return plaintree(clean_NOT_intree(root), len);
 }
 
+
+#ifdef V_UNKNOWN				/* exists in Windows headers */
+#undef V_UNKNOWN
+#endif
+
 #define V_UNKNOWN	0
 #define V_TRUE		1
 #define V_FALSE		2
-- 
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