From cb350102153cf25db31903b103ee6bf003cfa7c2 Mon Sep 17 00:00:00 2001
From:  <shinichiro.hamaji@gmail.com>
Date: Wed, 20 Jan 2010 07:39:18 +0000
Subject: Use GLOG_* environment variables even when gflags is installed.

Define GLOG_DEFINE_*, which checks if the GLOG_* environment variable
is defined. If defined, GLOG_DEFINE_* passes the value and otherwise,
it passes the original default value. In this way, GLOG_DEFINE_* macro
uses the value specified by gflags first, then GLOG_* environment
variables, and finally it uses the default value if neither of them are
specified.


git-svn-id: https://google-glog.googlecode.com/svn/trunk@76 eb4d4688-79bd-11dd-afb4-1d65580434c0
---
 doc/glog.html | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'doc')

diff --git a/doc/glog.html b/doc/glog.html
index c9816e0..9fe2e1f 100644
--- a/doc/glog.html
+++ b/doc/glog.html
@@ -116,6 +116,13 @@ environment variables, prefixing the flag name with "GLOG_", e.g.
    GLOG_logtostderr=1 ./your_application
 </pre>
 
+<!-- TODO(hamaji): Fill the version number
+<p>By glog version 0.x.x, you can use GLOG_* environment variables
+even if you have gflags. If both an environment variable and a flag
+are specified, the value specified by a flag wins. E.g., if GLOG_v=0
+and --v=1, the verbosity will be 1, not 0.
+-->
+
 <p>The following flags are most commonly used:
 
 <dl>
-- 
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