Missing llvm/Support/DataTypes.h file

Missing llvm/Support/DataTypes.h file

but there existing two files:

DataTypes.h.cmake & DataTypes.h.in

what are their func???

i was trying the example listed on the

ch.3, page[66]-----Writing the code

of Getting Started with LLVM Core Libraries,

i exactly copy the code, but it can’t work, and told me missing DataTypes.h

er, You should configure or cmake first,
the DataTypes.h are generated from DataTypes.h.in or DataTypes.h.cmake

Well, please reference to http://llvm.org/docs/GettingStarted.html