Clang-related topics would be preferred in cfe-dev, thank you.
(and cfe-commits would be if you had any patches to clang)
I'm very like your software, I have to admit that the LLVM has very good technology, but I regret to say that, I do not use LLVM/Clang, my computer system is Windows 7, in my system has various C/C++ compiler to run, including VC++, OpenWATCOM, Borland C++ Compiler 5.5, and GCC 4.7, the search paths are resolved, and helped me to compile the source code, however, I try to use every method to configure LLVM/Clang, can not compile contains STL C++ program. I think, in order to facilitate the developers, it is necessary to change LLVM/Clang settings, for example, provides configuration based on XML configuration file is located in the BIN directory, provide some reasonable rules of grammar. Allow the programmer to understand. I sincerely hope that you can LLVM/Clang do better!
I suppose that clang (targetting msvc) should be aware of %INCLUDE%.
It is set in "Visual Studio Command Prompt", (aka vcvarsall.bat).
That said, we need to work more for clang to live with MS headers and libraries.
Clang's driver configuration is interesting but harder issue, though.