r203624 - Be case sensitive when determining driver mode based on argv[0] except on Windows

[Hans Wennborg]

Author: hans
Date: Tue Mar 11 18:42:29 2014
New Revision: 203624

URL: http://llvm.org/viewvc/llvm-project?rev=203624&view=rev
Log:
Be case sensitive when determining driver mode based on argv[0] except on Windows

This narrows the impact of r188833 after Dimitry pointed out that it's good to be
able to tell the difference between 'cc' and 'CC'.

Modified:
    cfe/trunk/tools/driver/driver.cpp

Modified: cfe/trunk/tools/driver/driver.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/driver/driver.cpp?rev=203624&r1=203623&r2=203624&view=diff
==============================================================================
--- cfe/trunk/tools/driver/driver.cpp (original)
+++ cfe/trunk/tools/driver/driver.cpp Tue Mar 11 18:42:29 2014
@@ -227,8 +227,11 @@ static void ParseProgName(SmallVectorImp
     { "++",        "--driver-mode=g++" },
   };
   std::string ProgName(llvm::sys::path::stem(ArgVector[0]));
+#ifdef _WIN32
+  // Transform to lowercase for case insensitive file systems.
   std::transform(ProgName.begin(), ProgName.end(), ProgName.begin(),
                  toLowercase);
+#endif
   StringRef ProgNameRef(ProgName);
   StringRef Prefix;