I edit the makefile and change the llvm 3.2 source to llvm 3.9.0, but I got this error after make setup process:

-- Could NOT find LibXml2 (missing: LIBXML2_LIBRARY LIBXML2_INCLUDE_DIR)
CMake Error at tools/clang/CMakeLists.txt:150 (include):
include could not find load file:

LLVMParseArguments

CMake Error at tools/clang/CMakeLists.txt:165 (parse_arguments):
Unknown CMake command "parse_arguments".
Call Stack (most recent call first):
tools/clang/include/clang/AST/CMakeLists.txt:1 (clang_tablegen)

Any idea on how to overcome this error? I was also wondering if there is any additional steps/modification needed in order to use higher version of llvm?

Thanks