From c5d94a34fbd732762106b4056823bde6969fdfd8 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Tue, 7 Sep 2010 14:10:30 +0000
Subject: Modify pg_upgrade to set/restore all environment variables related to
 collation/encoding to match English when reading controldata.  This now
 matches the English variable setting used by pg_regress.c.

Backpatch to 9.0.X.
---
 src/port/unsetenv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/port/unsetenv.c b/src/port/unsetenv.c
index df8bda56336..21101236941 100644
--- a/src/port/unsetenv.c
+++ b/src/port/unsetenv.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/port/unsetenv.c,v 1.11 2010/01/02 16:58:13 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/port/unsetenv.c,v 1.12 2010/09/07 14:10:30 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -32,6 +32,7 @@ unsetenv(const char *name)
 	 * implementations (notably recent BSDs) that do not obey SUS but copy the
 	 * presented string.  This method fails on such platforms.	Hopefully all
 	 * such platforms have unsetenv() and thus won't be using this hack.
+	 * See:  http://www.greenend.org.uk/rjk/2008/putenv.html
 	 *
 	 * Note that repeatedly setting and unsetting a var using this code will
 	 * leak memory.
-- 
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