From c83591e81876505396a6a46cee39e32d5d289f4c Mon Sep 17 00:00:00 2001
From: Bill Hoffman <bill.hoffman@kitware.com>
Date: Mon, 14 Sep 2009 13:45:40 -0400
Subject: [PATCH] Fix for Bug #9190, -U did not work on case insensitive file
 systems because of call to glob convert to regex that expected to work with
 files.

---
 Source/cmake.cxx         |  2 +-
 Source/kwsys/Glob.cxx    | 10 +++++++---
 Source/kwsys/Glob.hxx.in |  3 ++-
 3 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index a3555b9f2..ba16d3bb2 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -416,7 +416,7 @@ bool cmake::SetCacheArgs(const std::vector<std::string>& args)
           }
         }
       cmsys::RegularExpression regex(
-              cmsys::Glob::PatternToRegex(entryPattern.c_str(), true).c_str());
+        cmsys::Glob::PatternToRegex(entryPattern.c_str(), true, true).c_str());
       //go through all cache entries and collect the vars which will be removed
       std::vector<std::string> entriesToDelete;
       cmCacheManager::CacheIterator it = 
diff --git a/Source/kwsys/Glob.cxx b/Source/kwsys/Glob.cxx
index 21efca8ec..b34b47371 100644
--- a/Source/kwsys/Glob.cxx
+++ b/Source/kwsys/Glob.cxx
@@ -84,7 +84,8 @@ kwsys_stl::vector<kwsys_stl::string>& Glob::GetFiles()
 
 //----------------------------------------------------------------------------
 kwsys_stl::string Glob::PatternToRegex(const kwsys_stl::string& pattern,
-                                       bool require_whole_string)
+                                       bool require_whole_string,
+                                       bool preserve_case)
 {
   // Incrementally build the regular expression from the pattern.
   kwsys_stl::string regex = require_whole_string? "^" : "";
@@ -195,10 +196,13 @@ kwsys_stl::string Glob::PatternToRegex(const kwsys_stl::string& pattern,
         {
         // On case-insensitive systems file names are converted to lower
         // case before matching.
-        ch = tolower(ch);
+        if(!preserve_case)
+          {
+          ch = tolower(ch);
+          }
         }
 #endif
-
+      (void)preserve_case;
       // Store the character.
       regex.append(1, static_cast<char>(ch));
       }
diff --git a/Source/kwsys/Glob.hxx.in b/Source/kwsys/Glob.hxx.in
index fb4eac6a6..638f45890 100644
--- a/Source/kwsys/Glob.hxx.in
+++ b/Source/kwsys/Glob.hxx.in
@@ -79,7 +79,8 @@ public:
       whole strings, but may be disabled to support concatenating
       expressions more easily (regex1|regex2|etc).  */
   static kwsys_stl::string PatternToRegex(const kwsys_stl::string& pattern,
-                                          bool require_whole_string = true);
+                                          bool require_whole_string = true,
+                                          bool preserve_case = false);
 
 protected:
   //! Process directory