From 8e122b9fca446ae0581ea9ef819036304bef290c Mon Sep 17 00:00:00 2001
From: Francois Pichet <pichet2000@gmail.com>
Date: Sat, 16 Jul 2011 21:17:14 +0000
Subject: Do not modify string returned by getenv on Windows. Fixes PR9875,
 patch by Nikola Smiljanic!

llvm-svn: 135356
---
 clang/lib/Frontend/InitHeaderSearch.cpp | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

(limited to 'clang/lib/Frontend')

diff --git a/clang/lib/Frontend/InitHeaderSearch.cpp b/clang/lib/Frontend/InitHeaderSearch.cpp
index c19e80a5fdd..e11a415db19 100644
--- a/clang/lib/Frontend/InitHeaderSearch.cpp
+++ b/clang/lib/Frontend/InitHeaderSearch.cpp
@@ -420,10 +420,8 @@ static bool getVisualStudioDir(std::string &path) {
     vscomntools = vs80comntools;
 
   if (vscomntools && *vscomntools) {
-    char *p = const_cast<char *>(strstr(vscomntools, "\\Common7\\Tools"));
-    if (p)
-      *p = '\0';
-    path = vscomntools;
+    const char *p = strstr(vscomntools, "\\Common7\\Tools");
+    path = p ? std::string(vscomntools, p) : vscomntools;
     return true;
   }
   return false;
-- 
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