From 527bd079344a60668b97cc50f3c77ed55ca463ac Mon Sep 17 00:00:00 2001
From: Bob Wilson <bob.wilson@apple.com>
Date: Wed, 10 Aug 2011 05:02:22 +0000
Subject: Clarify a comment.

llvm-svn: 137204
---
 llvm/lib/Support/Unix/Host.inc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'llvm/lib/Support/Unix')

diff --git a/llvm/lib/Support/Unix/Host.inc b/llvm/lib/Support/Unix/Host.inc
index 744fb9e6996..c5de97f73c9 100644
--- a/llvm/lib/Support/Unix/Host.inc
+++ b/llvm/lib/Support/Unix/Host.inc
@@ -30,7 +30,9 @@ static std::string getOSVersion() {
   struct utsname info;
 
 #ifdef __APPLE__
-  // Recognize UNAME_RELEASE environment variable to match Darwin uname.
+  // Recognize UNAME_RELEASE environment variable to match Darwin's uname,
+  // where the value of this variable sets the OS release version
+  // reported by "uname -r".
   const char *UnameOverride = ::getenv("UNAME_RELEASE");
   if (UnameOverride && UnameOverride[0] != '\0')
     return UnameOverride;
-- 
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