From b6196f5d47c06e6991cfc7e76db3d588a7797302 Mon Sep 17 00:00:00 2001
From: Patrik Nyblom <pan@erlang.org>
Date: Tue, 14 Aug 2012 15:02:43 +0200
Subject: Add documetation about Unicode in environment

---
 erts/doc/src/erlang.xml | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'erts/doc/src/erlang.xml')

diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index e69f223897..248b755969 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -3039,8 +3039,11 @@ os_prompt% </pre>
               port process. Both <c>Name</c> and <c>Val</c> must be
               strings. The one exception is <c>Val</c> being the atom
               <c>false</c> (in analogy with <c>os:getenv/1</c>), which
-              removes the environment variable. Not available on
-              VxWorks.</p>
+              removes the environment variable.</p>
+	      <p>If Unicode filename encoding is in effect (see the <seealso
+	      marker="erts:erl#file_name_encoding">erl manual
+	      page</seealso>), the strings (both <c>Name</c> and
+	      <c>Value</c>) may contain characters with codepoints > 255.</p>
           </item>
 	  <tag><c>{args, [ string() ]}</c></tag>
           <item>
-- 
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