why?

i want to install llvm/clang,but when i “make”,there are error messages:
no rules for creating “DiagnosticAnalysisKinds.inc”“/home/tao/Desktop/llvm-2.6/tools/clang-2.6/include/clang/Basic/Release/DiagnosticAnalysisKinds.inc.tmp”。
what’s wrong with it?
thank you!

Hello

i want to install llvm/clang,but when i "make",there are error messages:
no rules for creating
“DiagnosticAnalysisKinds.inc”“/home/tao/Desktop/llvm-2.6/tools/clang-2.6/include/clang/Basic/Release/DiagnosticAnalysisKinds.inc.tmp”。
what's wrong with it?
thank you!

Have you read the documentation at http://clang.llvm.org/get_started.html ?