From dbdaf98cb8a422c79751333697480376375c1684 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 8 Jan 2013 02:18:46 +0000
Subject: * README (install): note about distclean-ext.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38737 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 README | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README b/README
index 2de785d86e..d3a17e7631 100644
--- a/README
+++ b/README
@@ -132,6 +132,10 @@ This is what you need to do to compile and install Ruby:
 If you fail to compile ruby, please send the detailed error report with
 the error log and machine/OS type, to help others.
 
+Some extension libraries may not get compiled because of lack of
+necessary external libraries and/or headers, then you will need to run
+'<tt>make distclean-ext</tt>' to remove old configuration after
+installing them in such case.
 
 == Copying
 
-- 
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